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TESTC200 Release 2017-03-13
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(c) Marek Trokenheim

1.b4 d5 2.Bb2

(...)

2...g6?? (--> 1.b4 g6 2.Bb2 d5??).

2...Bh3?? 3.Nh3+– e5 4.a3 Bb4 (4...Bd6+–) 5.ab4 e4 (5...Nd7 6.f4+–) 6.c3 (better is 6.Bg7 Qd6 7.c3+–) 6...e3 (6...Nf6 7.d3+–) 7.de3 Nf6 8.g3 Qd6 9.Bg2 Qb4 (9...0–0+–) 10.cb4 d4 11.ed4 (better is 11.Bb7 de3 12.Ba8 a6+–) 11...Nd5 12.Bd5 Na6 13.b5 (13.Bb7 Rd8 14.Bc6 Kf8 15.Ra6 Rc8+–) 13...Nc5 14.dc5 Rd8 15.Bb3 (15.Ra7 Rd5 16.Qd5 0–0 17.Ng5 h6 18.Ra8 hg5 19.Rf8 Kh7 20.Qf5 Kh6 21.Rh8) 15...Rd1 16.Bd1 Ke7 17.0–0 (17.Ra7 f6+–) 17...Rd8 18.Na3 (18.Ra7 Rb8+–) 18...Rd1 19.Rad1 Kf8 20.Nf4 (20.Rd8 Ke7 21.Rfd1 Ke6 22.Nf4 Kf5 23.R1d5 Ke4 24.Re8) 20...f6 21.Nd3 (21.Rd8 Ke7 22.Rfd1 a5 23.R1d7) 21...g5 22.e3 (22.Bf6 Kf7 23.Bg5 Kg6 24.h4 a6 25.Nf4 Kf7 26.Rd7 Kg8 27.Rd8 Kf7 28.Rfd1 ab5 29.R1d7) 22...f5 23.Nc4 f4 24.ef4 gf4 25.Nf4 h5 (25...Ke8 26.Rfe1 Kf8 27.Rd8 Kf7 28.Red1 a5 29.R1d7) 26.Rfe1 (26.Rd8 Ke7 27.Rfd1 a5 28.R1d7) 26...h4 (26...a5 27.Rd8 Kf7 28.Red1 a4 29.R1d7) 27.b6 (27.Rd8 Kf7 28.Red1 hg3 29.R1d7) 27...ab6 (27...hg3 28.Rd8 Kf7 29.Rd7 Kf8 30.Ng6 Kg8 31.Re8) 28.cb6 (28.Rd8 Kf7 29.Red1 hg3 30.R1d7) 28...cb6 (28...Kg8 29.Re8 Kf7 30.Red8 hg3 31.R1d7) 29.Nb6 (29.Rd8 Kf7 30.Nd6) 29...hg3 30.hg3 1–0. Fournier,Frederic (1980) – brayant1 (1685), Owl21.com, 2009.

2…h5 (--> 1.b4 h5 2.Bb2 d5).

2...b5

(--> 1.b4 b5 2.Bb2 d5).

3.a4 ba4 4.Ra4 (--> 1.b4 b5 2.a4 ba4 3.Ra4 d5 4.Bb2).

3.e3 a6 (--> 2…a6 3.e3 b5).

3.e3 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 b5).

2...b6

(--> 1.b4 b6 2.Bb2 d5).

3.b5 Bb7 4.e3 c5 5.d4 Nf6 6.c4 e6 7.Nf3 Nbd7 8.Be2 Bd6 9.0–0 0–0 10.a4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7 10.d4).

3.e3 Bb7 (--> 1.b4 b6 2.Bb2 Bb7 3.e3 d5).

3.e3 Bb7 4.d4 e6 5.b5 Nf6 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bb7 6.d4).

3.e3 Bb7 4.Nf3 e6 (--> 1.b4 b6 2.Bb2 Bb7 3.e3 e6 4.Nf3 d5).

3.e3 Bb7 4.Nf3 e6 5.c4 Nf6 6.b5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bb7 6.c4).

3.e3 Bb7 4.Nf3 Nf6 5.d4 e6 6.a3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 b6 5.Nf3 Bb7 6.d4).

3.e3 Bb7 4.Nf3 Nf6 5.Be2 e6 6.a3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 b6 5.Nf3 Bb7 6.Be2).

3.e3 e6 4.a3 Bb7 5.Nf3 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 b6 5.Nf3 Bb7).

3.e3 e6 4.Nf3 Nf6 5.b5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3).

3.Nf3 Bb7 (--> 1.b4 b6 2.Bb2 Bb7 3.Nf3 d5).

3.Nf3 Bb7 4.e3 e6 (--> 1.b4 b6 2.Bb2 Bb7 3.e3 e6 4.Nf3 d5).

2...Qd7

3.e3 a5 4.b5 c6 5.c4 (5.Nf3 f6=) 5...dc4 6.Bc4 cb5 7.Be2 a4 (7...b4 8.Nf3=) 8.a3 Qd5 (8...Qf5 9.Nf3=) 9.Nf3+= Bd7 10.Nc3 Exerts pressure on the backward pawn 10...Qb3 (10...Qh5!?+=) 11.Qb3+/– ab3 12.Bb5 Bb5 13.Nb5 Na6 14.Nfd4 e6 15.Nb3 Nf6 16.d3 Be7 17.0–0 0–0 18.Rfc1 Rfc8 19.Rc8 Rc8 20.Rc1 Rc1 21.Nc1 Nd5 22.Ne2 (22.e4!? Nac7 23.Nc7 Nc7 24.a4+/–) 22...Nc5 23.d4 Nd3 24.Bc3 Bh4 25.g3 Be7 26.e4 Nf6 27.f3 Nd7 28.Nf4 Nf4 29.gf4 Nb6 30.Kf2 Nc4 31.Bb4 Bb4 32.ab4 Nb2 (better is 32...Kf8!?+/–) 33.Ke2 Nc4 34.Nc3 (better is 34.Kd3!? Nb2 35.Kc3 Nd1 36.Kd2+–) 34...Kf8+/– 35.Na4 b5 36.Nc3 Na3 37.Kd1 Ke7 38.Kc1 Nc4 (better is 38...Kd7!?+/–) 39.Nb5+– Ne3 40.Nc3 Nf1 (40...Ng2 41.b5+–) 41.h3 Nh2 42.Ne2 Nf3 43.b5 Kd7 44.Kb2 Kc7 45.Ka3 Nd2 46.e5 Kb6 47.Kb4 f5?? (better is 47...Nf3+/–) 48.Nc3+– Ne4 (48...Kb7 49.Na4 g5 50.Nc5 Kb6 51.Ne6 gf4 52.Nf4+–) 49.Na4 Kb7 50.Nc5 Kb6 51.Ne6 g6 (51...Nf2 52.d5 Nd3 53.Kc4 Nb2 54.Kb3 Kb5 55.Kb2+–) 52.Nc5 (better is 52.d5 Kb7 53.Nc5 Kc7 54.Ne4 fe4 55.e6+–) 52...Nf2 (52...Ng3 53.d5 Nh5+–) 53.e6 Nh3 54.e7 Nf4 (54...Nf2 55.e8Q Nd3 56.Nd3 Kc7 57.Nc5 h5 58.Qc6 Kd8 59.Qd7) 55.e8Q 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

3.e3 Qd6 4.a3 =.

3.e3 Nf6 4.Nf3 b5 5.Ne5 Qd6 6.a3. pumpkin (2485) – speeders, net–chess.com, 2004.

3.Nf3 e6 4.e3 Bb4?? 5.Bg7+– f6 6.Bh8 Qf7 7.Be2 Bd7 8.0–0 Nc6 9.c3 Bd6 10.Qb3 0–0–0 11.Nd4 Nd4 12.cd4 Ne7 13.Nc3 Rh8 14.Rab1 b6 15.Ba6 Kb8 16.a4 Nc6 17.Nb5 Bc8? 18.Bc8 Rc8 19.Nd6 cd6 20.Rfc1 Kb7 21.Qb5 Qe8 22.f4 Qd8 23.Qb6 ab6–+ 24.a5 Na5 25.Rd1 Nc4 26.Ra1 Ra8 27.Rab1 Ra2 28.d3 Ne3 29.Rf1 Nf5 30.g3 Nd4 31.Rb4 e5 32.Rfb1 Ne2 33.Kf1 Nc3 34.Rc1 d4 35.Rcb1 Qc7 36.R1b3 Ra1 37.Kg2 Qc6 38.Kf2 Ra2 39.Ke1 Qh1 0–1. erisonpassos – zbiniu4263, kurnik, 2011.

2...f5

(--> 1.b4 f5 2.Bb2 d5).

3.e3 e6 4.c4 c6 5.a4 Nf6 6.b5 (--> 1.b4 f5 2.Bb2 Nf6 3.c4 e6 4.b5 d5 5.e3 c6 6.a4).

3.e3 e6 4.Nf3 Nf6 5.a3 (--> 1.b4 f5 2.Bb2 Nf6 3.Nf3 e6 4.a3 d5 5.e3).

3.e3 Nf6 (--> 1.b4 f5 2.Bb2 Nf6 3.e3 d5).

3.e3 Nf6 4.c4 e6 5.b5 (--> 1.b4 f5 2.Bb2 Nf6 3.c4 e6 4.b5 d5 5.e3).

3.e3 Nf6 4.Nf3 e6 5.a3 (--> 1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.a3 d5 5.Nf3).

3.e3 Nf6 4.f4 e6 (--> 1.b4 d5 2.Bb2 e6 3.e3 f5 4.f4 Nf6).

3.Nf3 Nd7 4.a3 Ngf6 5.e3 e6 (--> 1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.a3 d5 5.Nf3 Nbd7).

3.Nf3 e6 4.e3 (--> 1.b4 d5 2.Bb2 e6 3.e3 f5 4.Nf3).

3.Nf3 e6 4.e3 Bd6 5.Be2 Nf6 6.a3 (--> 1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.a3 d5 5.Nf3 Bd6 6.Be2).

3.Nf3 e6 4.e3 Nf6 5.a3 (--> 1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.a3 d5 5.Nf3).

2...a5

3.a3 Nd7 4.e3 ab4 5.ab4 Ra1 6.Ba1 e5 7.b5 Ngf6 8.c4 c6 (8...dc4 9.Bc4 Bd6 10.d3+=) 9.bc6 bc6 10.Nf3 Bd6 11.Qa4 Qb6 12.Qa2 0–0 13.d4 Bb4 14.Nfd2 Bb7 (14...Re8 15.Be2 Bb7+=) 15.Bb2 (15.de5!? Ne4 16.Bd3+=) 15...Ne4 16.c5 Qc7 17.Qb3 (17.Qa4!? Nd2 18.Nd2 Bd2 19.Kd2+=) 17...Qa5–+ 18.Bc1? (better is 18.Qc2 ed4 19.Bd4 Ndc5 20.f3 Nd2 21.Nd2–+) 18...ed4 19.Ke2 (19.Be2 Ndc5 20.Qc2 de3 21.fe3 Ba6–+) 19...Ndc5 20.Qb2 Nd3! 21.Nb3 (21.Kd3 Nf2 Double attack) 21...Nc1 (21...Qa6 22.Qc2 Ne1 23.Kd1–+) 22.Nc1 Nc3 (better is 22...de3!? 23.Nb3 Qd8 24.Qd4–+) 23.Kf3 Nb1 24.Qb1 de3 25.Nd3 (25.fe3 d4! 26.Qe4 Qh5 27.g4 f5 28.Qe6 Qf7 29.Qf7 Rf7–+) 25...c5 26.Nb4 (26.fe3 d4 27.Kf2 de3 28.Kg1 Re8–+) 26...d4 (26...Qb4?! 27.Qb4 cb4 28.Ke3 Re8 29.Kd2–+) 27.Ke2 cb4 28.fe3 Re8 0–1. Hanscombe,Richard – Summers,C (1950), ch–WLS Cardiff WLS, 2010.

3.a3 Bf5 4.e3 Nd7 5.c4 (5.Nf3 ab4 6.ab4 Ra1 7.Ba1 e6=) 5...c6 6.cd5 cd5 7.Bb5 e6 8.Nf3 f6 9.ba5 Ra5 10.a4 Bb4 11.0–0 Ne7 12.Nd4 e5?? (better is 12...Qb8+=) 13.Nf5+– Nf5 14.Qg4 g6 (14...Nd6 15.Qb4 Nb5 16.ab5 Ra1 17.Ba1 Qe7+–) 15.Qb4 Ra8 (15...b6 16.Nc3 Qa8 17.e4 de4 18.Ne4 Rb5 19.ab5+–) 16.Nc3 d4 17.Ne4 Kf7 18.ed4 1–0. Hal1958 – Mosselman, playchess.de, 2004.

3.ba5 Ra5 (--> 1.b4 a5 2.ba5 Ra5 3.Bb2 d5).

3.ba5 Nc6 4.Nf3 f6 5.a6 ba6 6.Nc3 e5 7.e4 d4 8.Nd5 Nge7 9.Ne7 Be7 10.Bc4 Qd6 11.c3 d3 12.Rb1 Be6 13.Ba3 Bc4?? (Better is 13...Qd7 14.Be6 Qe6 15.Be7 Ne7 16.Qa4 Qc6 17.Qc6 Nc6=) 14.Bd6+– Bd6 15.Qa4 Bb5 (15...Be6 16.Qc6 Kf7 17.0–0+–) 16.Rb5! (16...Ke7 17.Rd5+–) 1–0. b4_player (2245) – lisarik (1950), GameColony.com, 2003.

3.c4 ab4–/+ 4.cd5 Qd5 5.Qb3 (5.Qc2!? Qc6 6.Qb3–/+) 5...Qb3–+ 6.ab3 Ra1 7.Ba1 Be6 8.h4 (8.Be5 Bb3 9.d4 Bc2–+) 8...Bb3 9.h5? (9.d4–+) 9...Ba2 (9...Ba2 10.Rh4 c5–+ (10...Bb1?! 11.Rb4 Bf5 12.Rb7–+)) 0–1. Hillbottom – Wall,Bill, internet, 1998.

3.a3 ab4

4.ab4 Ra1

5.Ba1 Qd6 6.Nc3 c6 7.Qb1 Nf6 8.e3 e5 9.b5 Be7 10.Nf3 0–0 (10...Nbd7 11.Be2+=) 11.Be2 (11.bc6 Nc6 12.Nb5 Qb8=) 11...c5 Black intends d4 (11...e4 12.Nd4 c5 13.Nb3–/+) 12.d3 d4 13.Nd1 Nbd7 14.c3 b6 (14...Nd5 15.0–0+=) 15.cd4= ed4 16.ed4 Re8 (16...Nd5 17.dc5 Nc5 18.Ne3=) 17.0–0 Bb7 (17...Nd5 18.dc5 Qg6 19.Qc1 Bc5 20.Nh4=) 18.Ne3 Bd8 (18...Nd5!? 19.dc5 bc5 20.Nd5 Qd5+/–) 19.dc5+/– bc5 20.Re1 Bc7 (20...Ba5!? 21.Nc4 Qc7 22.Na5 Qa5+/–) 21.Nc4+/– Qf4 22.g3 Qh6 (22...Qf5 23.Ne3 Qh3 24.Ng5+–) 23.Qd1 (23.Nh4 Re6+–) 23...g5 (23...Nb6!?+/–) 24.Bf1 Re1 25.Ne1 Nd5 (25...Kf8 26.Bg2 Nd5 27.Nc2+–) 26.Qe2 (26.Qg4 N5f6 27.Qf5 Qg6 28.Qg6 fg6+–) 26...Qe6 27.Qe6 fe6 28.Nf3 h6 29.Nfe5 N7f6 (29...Ne5 30.Ne5 h5 31.Be2+–) 30.Bh3 Bc8 31.Nc6 Kf7 32.d4 g4 (32...Nd7 33.dc5 Nc5 34.Bg4+–) 33.Bg2 (33.Bf1 cd4 34.Bd4 Nd7+–) 33...Nd7 (33...cd4 34.Bd4 Nd7 35.Be4+–) 34.dc5 Nc5 35.N4e5 Be5 36.Ne5 Ke7 37.Ng4 Nb3 (37...h5 38.Ne3 Bd7 39.Nd5 ed5 40.b6+–) 38.Bb2 h5 39.Ba3 Kf7 (39...Kd7 40.Ne5 Kc7 41.Bf3+–) 40.Ne5 Kf6 41.Bb2 Kf5 (41...Ke7 42.Bf3+–) 42.Nc6 (better is 42.Nf7 Kg6 43.Nd6+–) 42...Bd7 43.Bf3 Kg5 (43...h4 44.gh4 Kf4 45.Kg2+–) 44.h4 Kf5 (44...Kh6 45.Nd8 Kh7 46.Bd5 ed5 47.b6+–) 45.Bh5 (45.Bd1!? Bc6 46.bc6 Nd4 47.Bd4 e5+–) 45...Nb6 (45...Bc6 46.bc6 Na5 47.Be8+–) 46.Be2 (46.f3 Bc6 47.bc6 e5 48.Bg4 Kf6+–) 46...Na4 (46...Kg6 47.Kg2+–) 47.Bg7 (better is 47.Bd3 Kg4 48.Bg7 Bc6 49.bc6 e5+–) 47...Nbc5 (47...Kg6 48.Bh8 Kh7+–) 48.h5 Be8 49.h6 Kg6 50.Bd1 (50.Bh5 Kh5 51.h7 Bc6 52.h8Q Kg5 53.bc6 Nd7 54.Qh6 Kg4 55.Qe6 Kg5 56.f4 Kh5 57.Qf5) 50...Kh7 51.Bc2 (51.Ne7 Nb2 52.Bc2 Nbd3+–) 51...Bg6 52.Bg6 Kg6 53.Ne7 Kh7 54.g4 Ne4 (54...Nd3+–) 55.f4 Nd6 56.g5 1–0. Dzera,Evgeniy (2000) – Gavrilov,Yuriy (2270), Chervonny, 2007.

5.Ba1 Qd6 6.Nc3 e5 7.e3 Nf6 8.Nb5 Qe7 9.c3 c6 10.Na3 Bf5 (10...Qc7 11.Nc2+=) 11.Nf3 Qc7 12.d3 (12.c4 Nbd7 13.Bc3 Be7+=) 12...Bd6–/+ Black prepares e4 13.Be2 0–0 14.Nc2 Nbd7 15.h3 e4 16.Nfd4 Bg6 17.c4 (17.de4!? Be4 18.0–0–/+) 17...ed3–+ 18.Bd3 dc4 (better is 18...Bd3!? 19.Qd3 Ne5–+) 19.Bc4+= Ne5 20.Be2 Nd5 Attacking the isolated pawn on b4 21.f4 Bc2 22.Nc2 Ng6 (22...Nd7 23.0–0+=) 23.0–0 Qe7 The backward pawn on e3 becomes a target (23...Nb4? 24.Qd4 f5 25.Nb4+–) 24.Qd4 Nf6 25.g4 (25.Qc4 Re8=) 25...Rd8 26.Qc3? (better is 26.g5!? Ne8 27.Qb6+=) 26...Nf4!–+ 27.ef4 (27.ef4 Nd5 Double attack (27...Qe2 Pinning; 27...Qe2 Deflection; 27...Nd5 Decoy); 27.Rf4 Nd5 Double attack (27...Nd5 Decoy)) 27...Qe2 28.Rf2 (28.Re1 Qb5 29.f5 Bf8–+) 28...Qe4 (28...Qf2 29.Kf2 Ne4 30.Ke3 Nc3 31.Bc3–+) 29.g5? (29.Qe3 Bb4 30.Qe4 Ne4–+) 29...Nh5 (29...Bf4 30.Qf3 Bg5 31.Bf6 Qf3 32.Rf3 Bf6 33.Kf1–+) 30.Nd4? (30.Rd2–+) 30...Bf4 (30...Nf4 31.Nc2 Bf8 32.Qf3 Nh3 33.Qh3 Rd1 34.Rf1 Qc2 35.Bc3–+) 31.Re2 Qd5 (better is 31...Qg6 32.h4–+) 32.h4 (32.Nf3 Bg5 33.Re5 Qd1 34.Qe1 h6 35.Re8 Kh7 36.Rd8 Qe1 37.Ne1 Bd8–+) 32...Be5 33.Qe3 f6 (33...Re8 34.Nf3 Bh2 35.Kh2 Re3 36.Re3 Qa2 37.Kh3–+) 34.Rd2 (34.Nf3 Ba1 35.Rd2 Qd2 36.Qe6 Kf8 37.Nd2 Rd2 38.Qc8 Kf7 39.g6 hg6 40.Qb7 Ke6 41.Qc6 Kf5–+) 34...Bf4 35.Qe6 (35.Qf2 Bd2 36.Qd2–+) 35...Qe6 36.Ne6 0–1. Chaparro Grande,Fernando (1620) – Alonso Valiente,Alexis (1950), 1st Torneo Internacional Ciudad Galdos, 2016.

5.Ba1 e6 6.e3 Bb4?? (better is 6...Nf6 7.b5 Bd6+=) 7.Bg7+– 1–0. Hal1958 – Jmcerna, playchess.de, 2002.

5.Ba1 Nf6 6.e3 Bg4 7.Be2 Be2 8.Qe2 c6 9.Bf6 gf6 10.Nf3 e5 11.b5 c5 (11...Rg8!? 12.g3 e4=) 12.0–0 Nd7 13.Nc3 Nb6 14.Nh4 h5 (14...c4 15.Nf5+=) 15.Ra1+/– Qc8 (15...c4 16.Nf5+/–) 16.Qf3 e4 (16...Qd8 17.d3+/–) 17.Qf6+– (17.Qf6 Rh6 18.Qe5 Re6 19.Qh5+–) 1–0. marekt – RWO, internet, 2012.

5.Ba1 Nf6 6.Nf3 Bf5 (6...e6 7.b5+=) 7.Nc3 (7.b5 Nbd7+=) 7...Nc6 8.b5 Nb4 9.d3 e6 (9...c6 10.bc6 Nc6+=) 10.e4 (better is 10.h3!?+=) 10...de4–/+ 11.de4 Qd1 12.Nd1? (12.Kd1!? Ne4 13.Ne4 Be4 14.Ne1–/+) 12...Be4 (better is 12...Nc2 13.Ke2 Be4–+ (13...Na1?! 14.ef5 ef5 15.Kd3–+)) 13.Be2?? (better is 13.Ne3–+) 13...Nc2 14.Kd2 Na1 15.Nc3 (15.Ne3 Bb4 16.Kc1 Nd5 17.Nd5 ed5–+) 15...Nb3 16.Ke3 (16.Kd1 Bg6 17.Ne5 Bb4–+) 16...Bc5 17.Nd4 (17.Kf4 Bd6 18.Ke3 Ng4 19.Ke4 Nf2 20.Ke3 Bc5 21.Kf4 Nh1 22.Bc4–+) 17...Nd4 (17...Nd4 18.Ne4 Ne4 19.Ke4 Ne2–+) 0–1. Nautiluschess – geomck (1700), ICS blitz, 2000.

3.ba5 c5

4.e3 Qa5 5.Bc3 Qc7 6.Nf3 Nc6 7.Be2 e5 8.0–0 Nf6 9.d4 e4 10.Ne1 Bd6 11.g3 Bh3 12.Ng2 c4 13.Re1 b5 14.Nd2 h5 15.Nf4? Bf4–+ 16.ef4 b4 17.Bb4 Nb4 18.a3 Nc6 19.c3 Qd7 20.Bf1? h4 21.Bg2 hg3 22.fg3 Bg2 23.Kg2 Qh3 24.Kg1 Qh2 25.Kf1 Qh1 26.Kf2 Rh2 27.Ke3 Qe1! (27...Qe1 28.Qe1 Ng4#) 0–1. mic (2225) – jparkinson (2410), net–chess.com, 2007.

4.Nf3 Nc6 5.e3 f6 6.d4 Bg4 7.Be2 e6 8.0–0 Nge7 9.Nbd2 c4 10.h3 Bh5 11.c3 Qa5 12.a4 Nf5 13.g4+/– g6 14.gh5 gh5 15.Kh1 Bd6 16.Nh2 Kd7 17.Bh5 Rag8 18.Bg4 Nce7 19.e4 Nh4 20.Rg1 de4 21.Ne4 f5 22.Nd6 fg4 23.Nb5 gh3 24.Qe2 Qb6 25.Qe4 Nef5 26.Rae1 Rg2 27.Bc1 Rhg8 28.Bf4 R8g4?? 29.Qe5 Qc6 30.d5 Qd5?? 31.Qd5+– ed5 32.Rg2 hg2–+ 33.Kg1 Rf4 34.Rd1 Kc6 35.Na3 Re4 36.Nc2 Re2 37.Nd4?? Nd4–+ 38.cd4 c3 39.Rc1 c2 40.Ng4 Rd2 41.Ne3 Kb6 42.Rc2 Rc2 43.Nc2 Ka5 44.Ne3 Ka4 45.Kh2 Kb3 0–1. futsalboy (1615) – rox76 (1855), kurnik, 2011.

3.b5

3.b5 (-->1.b4 a5 2.b5 d5 3.Bb2).

3.b5 c5 4.e3 Nd7 5.c4 Ngf6 6.Nf3 e6 (--> 1.b4 a5 2.b5 d5 3.Bb2 c5 4.e3 e6 5.c4 Nf6 6.Nf3 Nbd7).

3.b5 c5 4.e3 Nf6 5.c4 e6 6.Nf3 Nbd7 (--> 1.b4 a5 2.b5 d5 3.Bb2 c5 4.e3 e6 5.c4 Nf6 6.Nf3 Nbd7).

3.b5 c6 4.a4 (--> 1.b4 a5 2.b5 c6 3.a4 d5 4.Bb2).

3.b5 c6 4.e3 (--> 1.b4 c6 2.e3 a5 3.b5 d5 4.Bb2).

3.b5 c6 4.e3 Nd7 5.c4 e5 (--> 1.b4 c6 2.e3 a5 3.b5 d5 4.c4 e5 5.Bb2 Nd7).

3.b5 Nf6 (--> 1.b4 a5 2.b5 Nf6 3.Bb2 d5).

3.b5 Nf6 4.e3 c6 (--> 1.b4 c6 2.e3 a5 3.b5 d5 4.Bb2 Nf6).

2...a6

3.a3 d4 4.Nf3+= Nc6 5.e3 g6 (better is 5...de3!? 6.fe3 Nf6=) 6.b5+/– ab5 (6...Nb8 7.Bd4 f6 8.Bb2+/–) 7.Bb5 (7.ed4?! Na7+=; < 7.Nd4 Nd4 8.Bd4 f6+/–) 7...Qd6 (7...Bd7!?+/–) 8.Nd4+– Bd7? (better is 8...e5 9.Nc6 bc6+–) 9.Bc6 Bc6 (9...bc6 10.Nf5!! Bf5 11.Bh8+–) 10.Nc6 f6 (10...Nf6 11.Ne5+–) 11.Nb4 1–0. Wall,Bill – Sparkey, internet, 2002.

3.a3 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.a3 a6).

3.a3 Bg4 4.g3 Nf6 5.Bg2 Nbd7 6.Nf3 g6 7.h3 Bf3 8.Bf3 Bg7 (8...c6!?=) 9.Bd5!+/– c6 (9...Nd5 10.Bg7 Pinning (10.Bg7 Deflection)) 10.Bg2 0–0 11.0–0 e5 12.d3 Qc7 13.c4 Rad8 14.Qb3 Rfe8 15.Nd2 Nf8 16.Rad1 Ne6 17.e3 Nd7 18.c5 Nf6 19.Nc4 Nd5 20.Nd6 Rd6 21.cd6 Qd6 22.Bd5 cd5 23.Kg2 g5 Black intends d4 24.e4 d4 25.Rc1 Rd8 26.Rc2 Qd7 27.a4 Bf8 28.Rfc1 h6 29.Rc4 Rb8 30.Ba3 Qe7 31.Rc8 Rc8 32.Rc8 Kg7? (better is 32...Qd7 33.Qc2 Kg7+–) 33.Qd5 Qd6 34.Qb7 a5 35.Rc6 Nd8 36.Rd6 Nb7 37.Rd7 ab4 38.Bb4 (38.Bb4 Bb4 39.Rb7+–; 38.Rb7?! ba3 39.Rb1 Bb4+–) 1–0. Pasiev,R (2240) – Baigildin,Albert (2075), Corporation Centre Cup, Izhevsk RUS, 2010. (=1.a3 a6 2.b4 d5 3.Bb2)

3.Na3 Bd7 4.d4 (4.c4 Nf6=) 4...Nc6 (4...e6 5.c3=+) 5.Nf3 (5.c3 Bf5=+) 5...f6 (5...Nb4 6.e3–/+) 6.c4 (6.c3 Bg4=) 6...e6 7.c5 Nb4 8.Nc2? (8.Qd2 Nc6=+) 8...Nc2?? (better is 8...Ba4 9.Rc1 b6–+ (9...Bc2?! 10.Qd2–/+)) 9.Qc2=+ c6 (9...b6 10.c6 Bc8 11.e3=+) 10.Qb1 (10.e3 e5=+) 10...Nh6 11.e3 Rb8 12.Bd3 Nf5 13.Bc3 Be7 14.Qc2= Qc7 15.Rb1 0–0 16.e4 Nh6 17.Rb4 de4= 18.Be4 f5 (18...f5 19.Bd3 Ng4=). PurdueSux – Nykolaj79, internet, 2007.

3.Na3 Nf6 4.c4 =+.

3.a4 c6 (--> 1.b4 c6 2.Bb2 d5 3.a4 a6).

3.a4 d4 4.Nf3 f6 5.Nd4 Bg4 6.h3 Bh5 7.Ne6 Qd6 8.Nf8 Kf8 9.c3 Nd7 10.d4 e6 11.Qc2 Ne7 12.e4 e5 13.Nd2 c6 14.Bd3 g5 15.0–0 ed4 16.cd4 g4 17.Be2 Rg8 18.Nc4 Qc7 19.h4 Nb6 20.Qd2 Rg6 21.Ne3 Rd8 22.Rfc1 Rd7 23.Qd1 Rd6 24.Ng4 Bg4 25.Bg4 Nd7 26.Qe2 Nb6 27.g3 Rg7 28.Bh3 Nd7 29.e5 fe5 30.de5 Rdg6 31.e6 Rg3 32.fg3 Rg3 33.Bg2 Ng6 34.ed7 Qd7 35.Qf2 Kg8 36.Qg3 b5 37.h5 Qa7 38.Rc5 Kf8 39.hg6 hg6 40.Qd6 Qe7 41.Rf1 Kg8 42.Qg6 Qg7 43.Qg7 1–0. katchum (2485) – valerypavlovich (2165), net–chess.com, 2004.

3.a4 Qd6 4.c3 =+.

3.a4 e5 4.Be5 Nc6 5.Nf3 Nb4 (5...Ne5!? 6.Ne5 Bb4–/+) 6.e3= Be6 7.Nd4 Qd7 8.Ne6 Qe6 9.d4 Qd7 (9...c5 10.Be2=) 10.Be2 Nh6 11.0–0 Nc6 12.Bf4 g6 13.c4 Rc8 (13...dc4!? 14.Bc4 Nf5+/–) 14.cd5+– Qd5 15.Bf3 Qf5?? (better is 15...Qd7+–) 16.Bh6 Ne5 (16...Qf6 17.Bf8 Rf8 18.Nd2+–) 17.de5 (better is 17.Bb7!? Bh6 18.Bc8 Qc8 19.de5 Bg7+–) 17...Rd8 18.Qb3 Bh6 19.Qb7 0–0 20.Qe4 (20.Qa6!? Bg7+–) 20...Qe4 21.Be4 Rde8 22.f4 Kg7 (22...f6 23.Bd5 Kh8 24.e6+–) 23.Nc3 g5 (23...f5 24.Bb7 Re6 25.Rac1+–) 24.Nd5 gf4 (24...f5 25.ef6 Kh8 26.Bf3+–) 25.ef4 Bf4 (25...c6 26.Nf6 Rc8 27.Rab1+–) 26.Rf4 c5 (26...Re5 27.Nc7 a5 28.Rd1+–) 27.Rc1 (27.Rg4 Kh6 28.Rf1 f5 29.ef6 Re4 30.Re4 Rf7 31.Rf3 Rb7 32.f7 Rb1 33.Kf2 Rb2 34.Kg3 Rg2 35.Kg2 c4 36.f8Q Kh5 37.Rf5 Kg6 38.Qf6) 27...Re5 28.Rc5 f5 (28...Rd8 29.Rg4 Kf8 30.Rh4+–) 29.Rc7 Kh8 (29...Rf7 30.Rf7 Kf7 31.Rf5 Rf5 32.Bf5 Kg7+–) 30.Rh4 Rfe8 (30...Re7 31.Re7 h6 32.Rh6 Kg8 33.Rhh7 Rf7 34.Ref7 fe4 35.Nf6) 31.Rhh7 Kg8 32.Nf6 Kf8 33.Rcf7 1–0. Hal1958 – Chief_Boomga, playchess.de, 2002.

3.a4 Bf5 4.Nf3 Nd7 5.Nh4 Bg6 6.Ng6 hg6 7.c4 Ngf6 8.cd5 Nd5 9.b5 ab5 10.ab5 b6 (10...Ra1!? 11.Ba1 e5=) 11.Ra8+= Qa8 12.Qc2 Qa7 (12...e5 13.e3+=) 13.Qc4 e6 14.g3 Bd6 15.Bg7 Rh5 16.Bb2 Nc5 (16...Nb4 17.Nc3+/–) 17.e4 Ne7 18.Be2 Rh7? (Better is 18...Rh3+–) 19.e5 Nc8 20.ed6 Nd6 21.Qc1 Qa2 22.0–0 Qd5 23.d4 Nb3 24.Qc7 Nb5 25.Bb5 Qb5 26.Qc8 Ke7 27.Ba3 Kf6 (27...Nc5 28.dc5 bc5 29.Bc5 Kf6 30.Qd8 Kf5 31.Qd4+–) 28.Qd8 Kg7 (28...Kf5 29.Qg8 Nd4 30.Qh7 Ne2 31.Kg2 Qd5 32.f3 e5+–) 29.Bf8 Kg8 30.Bh6 1–0. Trkn – guest6612, ICC, 2004.

3.a4 Bg4 4.h3 Bh5 5.b5 g6?? (better is 5...Nf6+=) 6.Bh8+– g5 7.Bb2 Nf6 8.Nf3 h6 9.g4 Bg6 10.Bg2 ab5 11.ab5 Nbd7 12.Ra8 Qa8 13.0–0 e6 14.d3 h5 15.gh5 Nh5 16.e3 c6 17.bc6 bc6 18.Ng5 Qb8 19.Bc3 Bh6 20.Nf3 e5 21.Nbd2 Kf8 22.Qa1 Qd6 (22...Bg7 23.Rb1 Qd6 24.d4 ed4 25.Qa8 Ke7 26.ed4+–) 23.Qa8 (better is 23.Be5!? Ne5 24.Ne5 Ke7 25.Qa7 Kf6+–) 23...Ke7 24.Qb7 Ke6 25.Ra1 Nc5 26.Qc8 (26.Qc8 Qd7 27.Qb8+–) 1–0. Okeefe,Michael (2190) – Kohler,Dennis, VD–2010–0–00003, 2010.

3.e3 b6 4.f4 c6 (4...Nf6 5.Nf3=) 5.Nf3 Nf6 6.c4 (6.Be2 e6 7.a3 c5=) 6...dc4 (6...e6 7.a3=) 7.Bc4 b5 (7...e6 8.Bc3=) 8.Bb3 (8.Be2 e6=) 8...Nbd7 (8...e6 9.Bc3=) 9.g4 (9.Qc2 Bb7+=) 9...Ng4 (9...e6 10.g5 Nd5 11.Bd5 cd5 12.Bd4+=) 10.Bf7= Kf7 11.Ng5 Kg6?? (11...Ke8 12.Ne6 Ne3 13.de3 Qb6+/–) 12.Qc2+– (12.Qg4 Nf6 13.Qg2 Qd5+–) 12...Kh5 13.Nf7 Nh2 (13...Nde5 14.Nd8 Bd7+–) 14.Qf5 1–0. Wall,Bill – Nadworny,Joe, corr, 1988.

3.e3 Qd6 4.a3 Nf6 5.f4 Nc6 6.Nf3 h6 (6...Bg4 7.Bd3=) 7.c4 Be6 (7...dc4 8.Bc4 Bg4 9.0–0=) 8.c5+= Qd7 9.Ne5 Ne5 10.fe5 +=. marekt – korwun, ChessWorld.net, 2004.

3.e3 Nd7 4.Nf3 Ngf6 5.c4 c6 6.Nc3 e6 7.c5 b6 8.d4 bc5 9.bc5 Be7 10.Bd3 Qc7 11.a4 e5= 12.de5 Ne5 13.0–0 Nd3 14.Qd3=+ Bc5 15.Ne2 Be7 16.Ned4 0–0 17.Rac1 Bd7 18.Nd2 c5 19.Nf5 Bf5 20.Qf5 c4?? 21.Bf6+= Bf6 22.Qd5 Rad8 (23.Qc4 Qc4 24.Nc4 Rd3+/–; 22...c3 23.Ne4+=). grain – lowbrow1, Live Game Caissa's Web, 2005.

3.f3 e5 4.a3 Nc6 5.e4 de4 6.fe4 Nf6 (better is 6...Qh4!? 7.Ke2 Qe4 8.Kf2 a5–+) 7.d3 h6 8.Nf3 Bd6 9.Be2 Ng4 10.Qd2 Be6 11.c4 b6 12.Nc3 Qd7 13.0–0 0–0 14.d4 ed4 15.Nd5 Bd5 16.ed5 Ne3 (better is 16...Nce5!?=) 17.Rf2 Bf4?? (better is 17...Ne7+/–) 18.dc6+– Qc6 19.Nd4 (better is 19.Qd4 Qf6 20.Qf6 gf6+–) 19...Qf6 20.g3 Qg5?? 21.Rf4 Rae8 22.Re1 b5 23.cb5 Nd5 24.Nf3 Qg6 25.Qd5 Qc2 26.Qd2 Qe4 27.Re4 0–1. Jokmin,Alex – Venturas,Bob, RN–2010–0–00321, 2010.

3.Nf3 c6 (--> 1.b4 c6 2.Bb2 d5 3.Nf3 a6).

3.Nf3 Qd6 4.a3 (4.Be5 Qb4 5.Bc7 Qc5=) 4...Nc6 5.e3 e5 6.c4 (6.d4 e4 7.Ne5 Be6=) 6...dc4 7.Bc4 Be6 (7...e4 8.Ng5 Ne5 9.Be5 Qe5 10.Nf7 (10.Bf7? Ke7–+) 10...Qa1 11.Nh8+/–) 8.Be2 (8.Be6 Qe6 9.Qa4 e4+=) 8...Be7 (8...e4 9.Nd4=+) 9.b5 (9.0–0 e4 10.Bg7 ef3 11.Bf3 Bf6 12.Bh8 Bh8+=) 9...ab5 10.Bb5 f6 11.Nc3 Nh6 12.d4 ed4 (12...Rd8 13.de5 fe5 14.Qd6 cd6 15.e4+=) 13.Nd4+= Bd7 14.Qh5 Nf7 15.Bc6 (15.Ne4 Qe5 16.Qf3 Nd6 17.Nd6 Bd6=) 15...bc6 (15...Bc6 A) 16.Nc6 Qc6 17.Nd5 Rd8 18.Ne7 Qg2–/+ (< 18...Ke7 19.Rc1 Qd6 20.0–0+=); B) 16.Nf5 Qd3 17.Ng7 Kf8 18.Ne6 Kg8 19.Nc7+–) 16.Nf5 (16.0–0 Qe5 17.Qf3 Bd6+=) 16...Bf5+= 17.Qf5 0–0 (17...Rb8 18.Rd1 Rb2 19.Qc8 Nd8 20.Rd6 cd6 21.Qg4+/–) 18.0–0 (18.Rd1 Qe5 19.Qe5 fe5+=) 18...Rfb8 19.Qc2 (19.Rfd1 Qc5 20.Qc5 Bc5+=) 19...Qe6 20.Rfb1 (20.Rfd1 Ne5+/–) 20...Ne5+= 21.Ne2 Qc4 22.Nd4=+ c5 23.Qc4+= Nc4 24.Nc6 Rb2 25.Rb2 Nb2 26.Ne7 Kf7 27.Nd5 c6 28.Nc3 Ke6 29.Kf1 Na4 30.Rc1 Nc3 31.Rc3+= Kd5 32.Ke2 c4 33.Kd2 f5 34.h4 Kc5 35.Kc2 Rd8 36.Kc1 g6 37.Kc2 h6 38.Kc1 g5 39.hg5 hg5 40.Kc2 Rh8 41.Kd2 Rh2=+ 42.Rc2 Rg2–/+ 43.Kc3 Rh2 44.Rb2 f4 45.Rb4 Rf2 46.Rc4 Kb5 47.a4 Kb6 48.a5 Ka5 49.Rc6 Rf3 50.Rc5 Kb6 51.Rg5 Re3 (better is 51...Rg3 52.Rd5 Re3 53.Kd2 Re4–/+) ½–½. Rancic,Danijela – Relic,Rajna (2060), YUG–ch sf (Women), 1995.

3.Nf3 Bf5 (--> 1.b4 d5 2.Bb2 Bf5 3.Nf3 a6).

3.Nf3 f6 =.

3.Nf3 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 a6).

3.f4 Nc6 4.g3 (4.a3!?=+) 4...Nb4–/+ 5.Bg2 Bf5 6.d3 Qd7 (6...e6 7.e4 de4 8.a3 ed3 9.ab4 dc2 10.Qd8 Rd8 11.Nc3–/+) 7.a3 Nc6 8.Nc3 e6 (8...Nf6!?–/+) 9.e4=+ de4 10.de4 Qd1 11.Rd1 Bg6 12.e5 (better is 12.Nge2!?=+) 12...Bc2–/+ 13.Rd2 Bf5 14.Nge2 Bc5 15.Ne4 (15.Bc6 bc6 16.Nd4 Ne7–/+) 15...Be3–+ 16.Rd3 Bb6 17.Nd4? (17.Rb3 0–0–0–+) 17...Nge7 (better is 17...Nd4 18.Bd4 Rd8 19.Bb6 Rd3–+ (< 19...cb6 20.Nd6 Ke7 21.Rb3+=)) 18.Nf5–/+ ef5 19.Nf6? (better is 19.Ng5–/+) 19...gf6–+ 20.ef6 Nc8 21.Bc6 bc6 22.Bd4 Ba5 (22...c5 23.Be3–+) 23.Bc3 Bc3 24.Rc3 Nd6 25.0–0 0–0–0 26.Rc6 Kb7 27.Rfc1 Rd7 28.a4 Rc8 29.a5 Ka8 (better is 29...Ne4–+) 30.Ra6 Kb7 31.Rac6 Nb5 32.a6 Ka7 33.Rb1 Rb8 (33...Rd6 34.Rd6 Nd6 35.Ra1–+) 34.h4 (34.Rc5 Nd4 35.Rb8 Kb8–+) 34...Rb6 (34...Rd6 35.Rc5 c6 36.Rbc1–+) 35.Rc5? (better is 35.Rb6 Kb6 36.a7–+) 35...Ka6 (35...Nd4 36.Rb6 cb6 37.Rc8–+) 36.h5 (36.Rf5 Rd3 37.Kf2–+) 36...Kb7 (better is 36...Rd2–+) 37.Rcb5 (37.Rbb5 c6 38.Rb6 Kb6 39.Rf5 c5+=) 37...Kc6 (37...Rdd6!?=+) 38.Rb6+= cb6 39.Re1 (39.Rc1 Kd5=) 39...Kd6 (better is 39...Rd6!?=+) 40.Re8 b5 41.Rh8 (41.Rb8!?+=) 41...b4= 42.Rh7 b3 43.Rh8 Kc7 44.h6 b2 45.h7 (45.Kf2–+) 45...b1Q 46.Kh2 Rd2 (47.Kh3 Qh1#) 0–1. MasterofDisaster – ASTARTE, Live Game Caissa's Web, 2004.

3.h3 Nc6=+ 4.a3 e5 5.e3 (5.Nf3 Bd6=+) 5...Nf6 6.d3 (6.Nf3 Bd6=+) 6...Be7 (6...Bd6 7.Nf3=+) 7.Nf3 d4 8.ed4 (8.c4 dc3 9.Bc3 Bd6=+) 8...ed4 9.Nbd2 (9.Be2 0–0=+) 9...Be6 10.Ng5 (10.Be2 0–0=+) 10...Bd5 11.Ngf3 0–0 12.Be2 Be6 (12...Nh5 13.Nd4 Nd4 14.Bd4 Bg2 15.Rh2 Qd4 16.Rg2–/+) 13.0–0 h6 (13...Re8 14.Re1=+) 14.Rc1 (14.Re1 Re8=) 14...Qd7 15.Ne4 Rad8 16.Nf6 Bf6=+ 17.Re1 Ne7 18.Bf1 g6 19.Qd2= Kh7 20.Rcd1 Qd5 21.Be2 g5 22.Bc1 Ng6 23.h4 Nf4=+ 24.hg5 Bg5?? 25.Ng5+/– hg5 26.Bf3 Qd6 27.g3 Nh3+= 28.Kg2 Kg7 29.Rh1 Rh8 30.Rh2?? g4–/+ 31.Bb7 Bd5 32.Bd5 Qd5 33.Kf1 Nf4! 34.Qf4 Rh2 35.Qg4? Kf8 36.f3 Re8 37.Kg1–/+ Ree2 38.Qc8 Kg7 39.Qg4 Kh7 40.Bg5 Qe5 41.Bf4 Reg2 42.Kf1 Qe2# 0–1. mic (2225) – mpenga (2410), net–chess.com, 2008.

3.a3 b5

4.a4 Nc6 =.

4.e3 Nc6 5.Nf3 Qd6!? =.

4.e3 Nc6 5.Nf3 e5 6.Ne5+/– Ne5 7.Be5 Bd6?? (better is 7...Nf6+/–) 8.Bg7+– Nf6 (8...Be5 9.Be5 f6 10.Qh5 Ke7 11.a4+–) 9.Bh8 Be5 (9...Bg4 10.Be2 Be2 11.Qe2+–) 10.Bf6 Bf6 11.d4 Bf5 12.Be2 Qe7 13.0–0 Kd7 14.Nd2 Rg8 15.Nf3 Be4 16.Ne1 Bg2 17.Ng2 Qe4 18.Bf3 Qg6 19.Bd5 h5 20.Qd3 (20...Ke8 21.Qg6 Rg6 22.Be4+–; 20.Kh1 Bg5+–) 1–0. Onkel_Luis – ronen1967, ICC, 2003.

4.e3 Nc6 5.Nf3 Bg4 6.Be2 e5 (6...Qd6 7.h3 Bf5 8.Nc3+=) 7.0–0 (7.Ne5 Ne5 8.Bg4 Ng4 9.Qg4 Nf6+/–) 7...Nf6 (7...Bd6!?=) 8.Ne5+/– (8.Be5? Bf3 9.Bf6 Qf6–+) 8...Be2 (8...Ne5 9.Be5 Be2 10.Qe2+/–) 9.Qe2 (9.Nc6?! Bd1 10.Nd8 Bc2 11.Bf6 gf6=) 9...Ne5 10.Be5 Bd6 11.Bb2 (11.Bd4 0–0+/–) 11...Qe7 (11...0–0 12.a4 Rb8 13.ab5 ab5 14.Ra6+=) 12.d3 (12.a4 Rb8 13.ab5 ab5+/–) 12...0–0 13.Nd2 (13.Qf3 Be5 14.Be5 Qe5+=) 13...Rfe8 (13...a5 14.c4 bc4 15.dc4 ab4 16.ab4 Bb4 17.Nf3=) 14.c4+/– dc4 15.dc4 c6 (15...c5 16.cb5 ab5 17.bc5 (< 17.Qb5 Rab8 18.Qc6 cb4+/–) 17...Bc5 18.Qb5+–) 16.cb5 (better is 16.Qf3+/–) 16...Qc7?? (16...ab5!? 17.Rac1 Qc7 18.Bf6 gf6 19.Qg4 Kh8+/–) 17.h3 cb5 18.Rac1 Bh2? 19.Kh1+– Be5?? 20.Be5 Qe5+/– 21.Nb3 Nd5 22.Nc5 Nc3 23.Qc2 Nd5 24.Qd3 Rad8 25.Rfd1 Nf4?? 26.Qd8+– Ne2 (27.Rc2 h6+–; 26...Ng6 27.Qd7+–). Onkel_Luis – ronen1967, ICC, 2003.

3.a3 Nc6

4.e3 (--> 3.e3 Nc6 4.a3).

4.Nf3 (--> 3.Nf3 Nc6 4.a3).

3.a3 Bd7

4.e3 Nf6 5.c4 dc4 6.Bc4 Bb5 7.Bb5 ab5 8.d4 e6 9.Nf3 Be7 10.0–0 0–0 11.Qe2 c6 12.Nbd2 Nbd7 13.Nb3 Nb6 14.Na5 Ra7 15.Ne5 Qd5 16.f3 Rfa8 17.e4 Qd6 18.Rac1 Na4 19.Ba1 Bd8 20.Nec6 bc6 21.Nc6 Qd7 22.Na7+= Ra7 23.Rfd1 Bb6 24.Kh1+/– Ne8 25.d5 Nd6?? 26.de6+– Qe6 27.Qd3 Rc7 28.Rc7 Bc7 29.e5 Ne8 30.Qb5 Nb6 31.f4 h6 32.a4 Bb8 33.a5 Nc4 34.Qb8 Ne3 35.Rg1 Qc6 36.h3 Qd7 37.Kh2 f5 38.Qb6 (38.Qb6 Nd5 39.Qd4+–) 1–0. Deglmann – Saglam, 1991.

4.h3 a5 5.e3 =.

4.h3 c6 5.e3 Be6 (5...a5 6.Nf3=) 6.Nf3 Nd7 (6...Bf5 7.d3+=) 7.d4 (7.Nd4 Ngf6+/–) 7...Nb6 (7...Bf5 8.Nh4 Be4 9.Nd2=) 8.Ng5 (8.Bd3+=) 8...Qc7 (better is 8...Bc8=) 9.Ne6+/– fe6 10.Nd2 Nf6 11.Nf3 (11.c4 g6+/–) 11...0–0–0 (better is 11...g6!?+/–) 12.Ne5+– Re8 (12...Na4 13.Nf7+–) 13.a4 Nbd7 14.b5 (14.Nf7!? Rg8+–) 14...Ne5+/– 15.de5 Nd7 (15...Ne4 16.ba6 Qa5 17.c3 ba6 18.Rb1+/–) 16.bc6 Qa5 (16...Qc6 17.c4+–) 17.c3 (17.Qd2!? Qd2 18.Kd2 bc6 19.Ba6 Kc7+–) 17...bc6 18.Bd3 (better is 18.Rb1!?+–) 18...Ne5+= 19.Qe2 (better is 19.Be2 g6 20.Rb1+/–) 19...Nc4?? (better is 19...Nd3 20.Qd3 g5=) 20.Bc4+– dc4 21.Qc4 Kc7 22.0–0 Rb8 23.Qf4?? (23.Ba3 e5 24.Rfd1+–) 23...e5=+ 24.Qc4 Rb2 25.Rfb1 Rb1 (25...Rd2!?–/+) 26.Rb1=+ g6 27.Qf7 (27.Qb3!?=+) 27...Qd5 (27...Qc3!? 28.Qe6 e4–+) 28.Qe8–/+ Kd6 29.Qb8 (better is 29.Qc8!? Bg7 30.Qg4–/+) 29...Ke6–+ 30.Qc8 Kf7 31.Qa6 Bg7 32.c4 Qd2 (better is 32...Qd6!?–+) 33.Qc6=+ Rd8 34.c5 Qc2 35.Re1 (35.Rf1 e4 36.a5–/+) 35...Bf8 (35...e4 36.Rf1–/+) 36.Qc7 (better is 36.Rf1!?=+) 36...Rd5–/+ 37.c6 0–1. PoPer – BOOKER, Live Game Caissa's Web, 2004.

3.a3 Bf5

4.e3 Nf6 5.Nf3 Nbd7 6.c4 dc4 7.Bc4 e6 8.d4 Be7 9.Nbd2 b5 10.Be2 Ne4 11.0–0 Ndf6 12.Ne5 Nd2 13.Qd2 Ne4 14.Qc2 Nc5 15.Qc1 Na4 16.Qc6 Kf8 17.Bf3 Ra7 18.Qc1 Rb7 1–0. BlackDemon (2650) – Viperpi (1630), FICS rated standard game, 2013.

4.e3 Nf6 5.Nf3 e6 6.c4 Nbd7 7.Nc3 c6 8.Nh4 (8.cd5 ed5 9.Be2 Bg4=) 8...Bg6 (8...Bg4 9.f3 Bh5 10.cd5 cd5 11.g3=+) 9.b5 (9.Ng6 hg6 10.f4 dc4 11.Bc4 b5=) 9...ab5 10.cb5 c5 11.Ng6 hg6 12.Bd3 b6 (12...Bd6 13.Be2=+) 13.f4 Bd6 14.0–0 (14.Bc2 Qc7=+) 14...e5 (better is 14...g5=+) 15.fe5? (15.Bc2 Ra5=) 15...Be5 (better is 15...Ne5!? 16.Be2 d4–+) 16.h3=+ Qb8 17.Qc2 c4 18.Bg6 (better is 18.Be2=+) 18...Qd6?? (18...fg6!? 19.Qg6 Kd8–+) 19.d4 cd3 20.Bd3+= Nc5 21.a4 d4 22.Ne4+= Nfe4 23.Be4 d3 24.Be5 dc2= 25.Bd6 Ne4 26.Bc7 Nd2–/+ 27.Rfc1 Nb3 28.Bb6 Na1 29.Bc7?? Ra4 30.Be5 Rb4 (30...Rb4 31.Ba1 Rb1–+; 30...Rh5 31.Ba1 Rb5 32.Kf2 Ra1 33.Rc2 Rf5 34.Kg3–+) 0–1. Dolejs,Dan E – Whitlock,Dennis R, NZCCA TT res corr0102, 2001.

4.Nf3 Nd7 5.e3 Ngf6 6.Be2 a5 7.b5 Ne4 8.0–0 Nd6 9.Nd4 Bg6 10.f4 Nf5? (better is 10...e6+=) 11.Nf5+– Bf5 12.g4 Bg6 13.f5 e5 (13...e6 14.fg6 hg6 15.Rf2+–) 14.c4 c6 15.Nc3 dc4 16.fg6 hg6 17.Bc4 f5 18.Be6 Nc5 Black prepares e4 19.gf5 Qg5 20.Kh1 Bd6 21.bc6 bc6 22.Qe2 e4 23.Rf2 Qh4 24.Rg2 Nd3 25.Na4 gf5 26.Bg7 Rh7 (26...Ke7 27.Bc4 (27.Bf5 Bh2 28.Rh2 Nf2 29.Qf2 Qf2 30.Rh8 Rh8 31.Bh8 Qf3 32.Kg1 Qg3 33.Kf1 Qf3 34.Kg1 Qg3 35.Kf1 Qf3 36.Kg1=) 27...Rh5 28.Rb1 (28.Bd3 ed3 29.Qf3 Bh2 30.Qh5 Qh5 31.Rh2 Qg4–+) 28...Bh2 29.Qh5 Qh5 30.Rh2 Nf2 31.Kg1 Nh3 32.Kh1 Nf2 33.Kg1 Nh3 34.Kh1 Nf2=) 27.Bf5 Rg7 28.Rg7 Nf2 29.Kg1 Qh2 30.Kf1 Qh8 31.Rh7 Qa1 32.Kf2 Be7 33.Qh5 Kd8 34.Rh8 Kc7 35.Qh2 Kb7 36.Ra8 Ka8 37.Qc7 Bh4 (37...Qf1 38.Kf1 Bc5 39.Nc5 a4 40.Qb7) 38.Kg2 Qb1 (38...Qf1 39.Kf1 Bf6 40.Nb6) 39.Bd7 Qb7 (39...Qg1 40.Kg1 Bf2 41.Kf2 c5 42.Nb6) 40.Bc6 Be7 (40...Qc6 41.Qc6 Kb8 42.Nc5 Bf6 43.Qb7) 41.Qb7 1–0. pozarski (2050) – N2K2001 (1945), GameColony.com, 2002.

3.a4 b6

4.e3 Bb7 5.d4 Nf6 6.Nf3 e6 7.b5 a5 8.Be2 Bd6 9.Nbd2 c6 10.c4 0–0 11.Rc1 dc4 12.Bc4 cb5 13.Bb5 Ba6 14.Qe2 Bb5 15.Qb5 Nbd7 16.0–0 Rc8 17.Rc8 Qc8 18.Rc1 Qb8? (better is 18...Qb7+=) 19.e4+– Bb4 20.e5 Bd2 21.Nd2 1–0. Anlauf,Wolfgang – Graf,Wolfgang, 17OBSen–Rowy Poland, 2008.

4.e3 c5 5.bc5 bc5 6.Nf3 =.

4.e3 e6 5.Nf3 Nf6 (5...Bb4 6.Bg7 Bd2 7.Nbd2+–) 6.b5 c5 7.c4 (7.a5 ba5 8.Ra4 c4 9.Bf6 gf6–/+) 7...Be7 (7...Bd6 8.a5=+) 8.Be2 (8.a5 ba5 9.ba6 0–0–/+) 8...Bb7 (8...dc4 9.Bc4 0–0 10.d4=+) 9.0–0 0–0 10.d4 (10.ba6 Na6 (< 10...Ra6 11.cd5 Ra5 12.Bc3+=) 11.d3 Nb4=+) 10...Nbd7 (10...dc4 11.Bc4 Bd5 12.Bd5 Nd5 13.e4=) 11.Nbd2 (11.Nc3 cd4 12.Nd4 e5+/–) 11...a5 (11...Bd6 12.Bd3=) 12.h3 (12.Rc1 Bd6=) 12...Rc8 (12...dc4 13.Nc4 Bd5 14.Rc1=) 13.Rc1 cd4 (13...dc4 14.Nc4 Bd5 15.dc5 Nc5 16.Be5=) 14.Bd4 Nc5 15.Bc5 (15.Ne5 Nfe4=) 15...Bc5=+ 16.Nb3 Ba3 17.Rc2 Ne4 18.Nfd2 (18.Qd4 dc4 19.Bc4 Qd4 20.Nbd4 Nc5=+) 18...dc4 (18...Nd2!? 19.Qd2 Qg5=+) 19.Nc4= Bd5? (19...Be7 20.Qd8 Rfd8 21.Bd1=) 20.Qd4?? (better is 20.Na3 Bb3 21.Rc8 Bd1 22.Rd8 Be2 23.Rf8 Kf8 24.Re1+–) 20...Bc5 21.Qb2 Bc4 22.Rc4= Nf6 23.Nc5 bc5 24.Bf3 Nd5 25.Rd1 Qe7 26.Bd5+– ed5 27.Rd5 Rfd8 28.Rd8 Rd8+/– 29.Qc3 Rd1 30.Kh2 Qc7 31.g3 Rd5 32.e4+– Rh5 33.f4 Qc8 34.f5+– h6 35.Rc5 Qb7 36.Rc8 Kh7 37.Qc6 Qe7? 38.b6 Qb4 39.b7?? Qd2= 40.Kg1 Qe3 41.Kf1+/– Qf3 42.Ke1 Qg3 43.Kd2?? Qf2 44.Kc1+– Rh3 45.Qc2?? Rh1?? 46.Kb2–/+ Qb6 47.Qb3?? Rb1!!–+ 48.Kb1 Qb3 49.Kc1 Qb7 50.Rc4 Qb3 51.Rc7 Qe3 52.Kd1 Qe4 (53.Rc8 Qa4 54.Ke2 Qe4 55.Kd1 a4–+; better is 52...Qg1!? 53.Ke2 Qh2 54.Ke3 Qc7 55.Kd4–+) 0–1. Ruhle,Ernst Albrecht – Weibrecht,Carl, Wch Seniors Bad Wildbad, 1993.

4.Nf3 c5 =.

3.a4 Nc6

4.b5 Na5 5.e3 Bd7 6.Nf3 e6 7.Be2 Nf6 8.0–0 Be7 9.d3 c6 10.c4= dc4 11.dc4+= 0–0 12.Bc3 b6 13.Ne5 Be8 14.Nd2 cb5 15.ab5 ab5 16.cb5 Bd6 17.Nec4 Nc4 18.Bc4 Ra1 19.Qa1 Be7 20.Nf3 Qc7 21.Rd1?? Qc4–+ 22.Ne5 Qb5 23.Rb1 Qd5 24.h3 Ne4 25.Bd4 Bc5 26.Ng4 Bd4 27.ed4 Bd7 28.Rb6 Bc6 29.Ne3 Qd7 30.Qb1 h6 (31.Qb2 Rc8–+; 30...Rd8 31.Qc1 Ba8 32.Qb2–+) 0–1. stoker – lowbrow21, Live Game Caissa's Web, 2006.

4.b5 Nb4?? 5.c3+– 1–0. Wall,Bill – WCIII, internet, 2002.

4.b5= ab5

5.ab5 Ra1

6.Ba1 Na5 7.e3 b6 8.Nf3 Bd7 9.Nc3 e6 10.Ne5 Nf6 11.Bd3 Bb4 (11...Nb7 12.0–0+=) 12.0–0 Bc3 (better is 12...0–0!?+=) 13.Bc3+– c6 (better is 13...Nb7 14.Ng4 Nh5+/–) 14.Ba5 ba5 15.bc6 Bc6 (15...Bc8+–) 16.Nc6 Qb6 (16...Qc7 17.Qb1+–) 17.Qb1 Qc6 (17...Qc7+–) 18.Bb5 (18.Bb5 Qd7 19.Bd7 Nd7 20.Qb5+–) 1–0. Heini – chessenemy, internet, 2016.

6.Ba1 Na5 7.e3 b6 8.Nf3 Nf6 9.Bd4 +=.

6.Ba1 Na5 7.e3 b6 8.Nf3+= Bg4 (8...Nf6 9.Be2+=) 9.Be2 (9.h3 Bh5+=) 9...e6 10.0–0 (10.h3 Bf3 11.Bf3 Nf6=) 10...Nf6 11.d3 (11.Ne5 Be2 12.Qe2 Bd6+=) 11...Be7 12.Nbd2 0–0 13.h3 Bf3 14.Nf3 Qd7 (14...c6 15.Qb1+=) 15.c4+= dc4 (15...c6 16.Qb1+=) 16.dc4 Qd1 (16...c6 17.Qb1+=) 17.Rd1 (worse is 17.Bd1 Nc4 18.Be2 Nd6+=) 17...Rd8 (17...Ra8 18.Kf1+/–) 18.Rd8+/– Bd8 19.Bd3 (19.Be5 c6+=) 19...h6 (19...Nd7 20.Bd4+=) 20.Ne5 (20.Kf1 c6+/–) 20...Kf8 (20...Ne8 21.Nd7+/–) 21.Bc3+/– Nb3 (21...Be7 22.Kf1+/–) 22.Nc6 Be7 23.Be5 Bd6 (23...Ne8 24.Kf1+=) 24.Bd6 (24.Bf6 gf6 25.g4 Na5+/–) 24...cd6+= 25.Na7 (25.Kf1 d5 26.Ke2 Nc1 27.Kd2 Nd3 28.Kd3 dc4 29.Kc4 Ne4=) 25...Nc5= 26.Be2 Ncd7 (26...Ke7 27.Nc6 Kd7 28.Kf1=) 27.Bf3 (27.Nc8 d5+=) 27...Ne5= 28.Be2 Ke8 (better is 28...Ned7!?=) 29.Nc8+/– Ned7 30.Nd6 Ke7 31.Nc8 Kd8 32.Na7 Kc7 33.Nc6 Kd6 34.f3 Ne5 (34...Ne8 35.Nb4+/–) 35.Nb4 (35.Ne5 Ke5 36.g3 Kd6+=) 35...Nc4 36.Bc4 Kc5 37.Be6 fe6 38.Nc6 Nd5 (38...Kb5 39.Nd4 Kc4 40.Ne6+=) 39.Kf2 (39.Nd4 e5 40.Ne6 Kb5+=) 39...Nc7 40.Nd4 g6 Exerts pressure on the isolated pawn (40...e5!? 41.Nf5 Ne6+=) 41.f4+/– Kd5 (41...e5 42.fe5 Nb5 43.Nb5 Kb5 44.Kf3+/–) 42.Kf3 e5 (42...g5 43.g3+/–) 43.fe5 Ke5 The passed pawn on e3 will become decisive later 44.h4 Kd5 45.Kf4 Kd6 (45...Kc4 46.Ke5+/–) 46.Ke4 (46.e4 Ne8+–) 46...Nd5+/– 47.g4 Nf6 48.Kf3 Kd5 (48...Kc5 49.g5 hg5 50.hg5+/–) 49.Nc6 Kc5 50.Na7 (50.Ne5 g5 51.hg5 hg5+–) 50...Kd5 (50...Nd5 51.Ke4+/–) 51.g5 (51.Kf4!? Ke6 52.e4+–) 51...hg5+/– 52.hg5 Nd7 (52...Ne4 53.Kg4+=) 53.e4 (53.Nc6 Kc5 54.Nd4 Kd5+=) 53...Kd4 (53...Kc5 54.Kf4+=) 54.Kf4 (54.Nc6 Kc4+=) 54...Kc5 55.e5 Kd5 (55...Nf8 56.Kg3+=) 56.Nc6 (56.Nc8!? Ke6 57.Ke4+=) 56...Nf8+= 57.Ne7 Kc5?? (better is 57...Kd4+=) 58.Ng6+– Ng6 (58...Ne6 59.Kf5 Ng7 60.Kf6 Ne8 61.Kf7+–) 59.Kf5 Nf8 (59...Ne7 60.Kf6 Nd5 61.Kf7+–) 60.g6 Ng6 61.Kg6 Kd5 (61...Kb5 62.e6+–) 62.Kf6 (62.Kf6 Kc4 63.e6+–) 1–0. Roczniak,Jan – Swieton,R, corr Poland, 1983.

6.Ba1 Na5 7.e3 Bf5 8.Nf3 (8.Bc3 c5 9.bc6 Nc6 10.Nf3 Nf6 11.Bb5 Qb6 12.Be2=) 8...e6 9.Be2 Nf6 10.Nh4 Bg6 11.0–0 Nc4 12.d3 +=.

6.Ba1 Na5 7.e3 Nf6 8.Nf3 (8.Be2 Bf5 9.Nf3 e6 10.0–0 Bg4 11.d3 Bd6 12.c4+=) 8...Bg4 9.h3 Bh5 10.g4 Bg6 11.Ne5 e6 12.h4 +=.

6.Ba1 Na5 7.Nf3 f6 8.d4 e6 9.Nbd2 c5 10.bc6 Nc6 11.e4 Nh6 12.Be2 +=.

6.Ba1 Na7 7.e3 Bd7 8.Nc3 Nf6 9.Nf3 e6 10.Ne5 Bb4 11.b6 cb6 12.Bd3 Bc3 13.Bc3 Nc6 (better is 13...Bb5!?=) 14.Nd7 Qd7 15.Bf6 gf6 16.Qg4 Ne5 17.Qg7 Nd3 18.cd3 Rf8 19.0–0 h5 20.Qf6 Qb5 21.Qc3 Qd7 22.Ra1 Ke7 23.Qb4 Qd6 24.Qh4 Kd7 25.h3 Rh8 26.Qf6 Rf8 27.d4 Kc6 (27...b5 28.d3+–) 28.d3 Qb4 29.e4 Qc3 (29...Qd6+–) 30.ed5 Kb5 (30...Kd6 31.Qf4 e5 32.Qh6 Kd5+–) 31.Rb1 Ka4 (31...Ka5 32.de6 b5 33.Qe5+–) 32.de6 Qd3 (32...Ka3 33.e7 Re8 34.Qf7 Re7 35.Qe7 Ka2 36.Qb4 Qb4 37.Rb4+–) 33.Ra1 Kb3 (33...Kb5 34.e7 Rc8 35.Qe5 Kb4 36.Qd6 Kb5 37.Qd7 Kb4 38.Qc8 h4 39.e8Q Qc4 40.Qa4 Kc3 41.Qcc4 Kd2 42.Qac2) 34.e7 1–0. Trkn – guest280, ICC, 2004.

6.Ba1 Na7 7.e3 e6 8.Nf3 (8.Be5 Nf6+=) 8...c6 (8...Bd7 9.Nc3+=) 9.c4 (9.Nc3 Nf6+=) 9...cb5 (better is 9...dc4!? 10.b6 Nb5=) 10.cd5+/– Qd5 (10...Nf6 11.Bd4 b6 12.Nc3 Nd5 13.Qa1+–) 11.Bd4 Nc6 12.Nc3 Qd7 (12...Qd8 13.Bb5 Bd7 14.0–0+/–) 13.Ne5 (13.Bb5 Nf6+–) 13...Ne5+/– 14.Be5 Qd8 15.Nb5 (better is 15.Bb5 Bd7 16.0–0+/–) 15...Bd7 (15...f6!? 16.Bg3 Bb4+/–) 16.Nc7 (16.Nd6 Ke7 17.Bc4 f6+–) 16...Ke7 17.Qb3 f6 18.Bg3 (18.Bf4 Qc8 19.Bc4 Nh6+–) 18...e5? (better is 18...Nh6+–) 19.Qb4 Kf7 20.Qc4 (20.Qb7?! Ne7 21.f4 Qc8 22.Qc8 Bc8 23.Bc4 Kg6 24.fe5 Nf5+–) 20...Ke7 21.f4 b5 22.Qc3 Kf7 23.fe5 Be7 (23...fe5 24.Bb5 Bb5 25.Nb5 Qd5 26.0–0 Nf6 27.Be5 Be7+–) 24.Bd3 Nh6 (24...fe5 25.0–0 Nf6 26.Qe5+–) 25.0–0 Rf8 (25...Qc8 26.Qb3 Kf8+–) 26.Qb3 Be6 27.Qe6 1–0. pierre – embie, internet, 2010.

6.Ba1 Na7 7.e3 Nf6 8.c4 (better is 8.Bd4 b6 9.Nf3+=) 8...e6?? (better is 8...dc4 9.Bc4 Bd7=) 9.Qa4+– dc4 10.Qa7 Bd6 (10...Ne4 11.Bc4 Qh4 12.g3 Ng3 13.Qb8+– (13.hg3?! Qh1 14.Kf1 Rg8=)) 11.Bc4 0–0 12.Bf6 (12.Nf3 Nd5+–) 12...Qf6 13.Nf3 b6 (13...e5 14.Nc3+–) 14.Nc3 (14.d4 Rd8+–) 14...h6 (14...Rd8 15.d4+–) 15.Ne4 Qd8 16.Nd4 (16.0–0 Bb4+–) 16...Bd7 17.Nd6 cd6 18.Nc6 Bc6 19.bc6 d5 (19...Qg5 20.0–0 Qc5 21.Qa4+–) 20.Bb5 Qd6 21.0–0 Qc5 22.Rb1 Qc2 23.Qa1 Qc5 24.Qc3 (24.d4 Qe7+–) 24...Rc8 25.Qc5 bc5 26.h3 (26.d3 e5+–) 26...Kf8 27.d3 Ke7 28.Ra1 (28.Kf1 e5+–) 28...Kd6 29.Ra7 Rc7 30.Rc7 Kc7 31.Kf1 f5 (31...e5 32.e4 d4 33.Ke2+–) 32.f3 (32.f4 g6+–) 32...g5 (32...e5 33.e4 de4 34.de4 fe4 35.fe4+–) 33.Kf2 (33.f4 g4+–) 33...h5 (33...f4 34.g3 e5 35.gf4 gf4 36.ef4 ef4 37.Ke2+–) 34.f4 g4 (34...gf4 35.ef4 d4 36.Kg3+–) 35.hg4 (35.Kg3 gh3 36.gh3 Kd6+–) 35...fg4 (35...hg4 36.Kg3+–) 36.Kg3 c4 (36...Kc8 37.Kh4 Kc7 38.Kh5+–) 37.dc4 dc4 38.Bc4 Kc6 (38...e5 39.Bd5 ef4 40.ef4+–) 1–0. Turudic,M – Jansa,Andrej, Pokljuka op, 1991.

6.Ba1 Nb4 7.c3 c5 (7...e5 8.cb4 Bd6 9.Nf3+– f6 10.Qb3 Ne7 11.d4 e4 12.Nfd2+–) 8.cb4 cb4 (8...c4 9.d3 cd3 10.e3 Bf5 11.Nf3 e6 12.Bc3+–) 9.e3 Qa5 (9...Bf5 10.Nf3 Qa5 11.Bd4 f6 12.Nh4+–) 10.Qc2 (10.Bd4 Nh6 11.Bd3 Bf5 12.Be2+–) 10...Bd7 11.Be5 (11.Bd4 e6 (11...f6+– 12.f4+–) 12.f4+–) 11...f6 12.Bc7 g6 (12...Bf5 13.Qf5 Qc7 14.Qh5 g6+–) 13.Ba5 1–0. pierred – tableofone@wuchess.com, internet, 2008.

6.Ba1 Nb8 7.e3 A) 7...Nf6 8.Be2 (8.Nf3 e6 9.Be2 Nbd7 10.Ne5 Ne5 11.Be5 Bd6 12.Bd6=) 8...e6 9.f4 Nbd7 10.Nf3 Be7 11.0–0 0–0 12.Ne5=; B) 7...Nh6 8.Nf3 (8.Be2 f6 9.f4 e6 10.Nf3 Bd6 11.0–0 Nd7 12.Nc3=; 8.Bd3 Nd7 9.Nf3 f6 10.Nc3 Nb6 11.e4 d4 12.Nd5=; 8.f4 Bg4 9.Be2 Be2 10.Ne2 e6 11.0–0 Qd7 12.Nd4=; 8.b6 cb6 9.Nf3 Nc6 10.Bb5 f6 11.Nc3 e5 12.Qb1=) 8...f6 9.c4 dc4 10.Bc4 Nf7 11.d4 Nd6 12.Bd3+=; C) 7...Nd7 8.f4 Ndf6 9.Be2 Bf5 10.Nf3 Nh6 11.0–0 e6 12.Nd4+=; D) 7...e6 8.Be2 Nd7 9.Nh3 Ngf6 10.0–0 Bd6 11.f4 c5 12.bc6=.

6.Ba1 Nb8 7.Nf3 e6 (7...Bg4 8.e3 e6 9.h3 Bf3 10.Qf3 Nd7 11.Be2 Qa8 12.Bc3=; 7...Nf6 8.e3 e6 9.Be2 Nbd7 10.0–0 Bd6 11.Nd4 0–0 12.f4=; 7...f6 8.d4 e6 9.Nbd2 Ne7 10.e3 Nd7 11.Bd3 c5 12.bc6+=) 8.e3 Nf6 9.Ne5 Nbd7 10.Nd7 Bd7 11.Be5 Bd6 12.Bd6 =.

3.a4 Bd7

4.e3 e6 5.c4 (5.Nf3 Nf6=+ (5...Bb4 6.Bg7 f6 7.Bh8+–)) 5...Nf6=+ (5...Bb4? 6.Bg7 dc4 7.Bh8+–) 6.c5 Nc6 (6...a5 7.Qb3=+) 7.Qb3 (7.b5 Na5 8.Bc3 Nc4+=) 7...Na7 (7...b6 8.d4=+) 8.Nf3 Be7 9.Bd3 h6 (9...a5 10.0–0=) 10.Ne5 c6 (10...a5 11.0–0=) 11.Nd7 Qd7 12.0–0 Rd8 (12...0–0 13.Bd4+=) 13.f4 Rg8 (13...0–0 14.Bd4+=) 14.f5 Ne4 15.Be4 de4 16.fe6 fe6 (16...Qe6 17.Qe6 fe6 18.Rf4+/–) 17.Bd4 Qd5 18.Qb2 Qh5 19.Qc2 Qg6 20.Nc3+– Bf6 21.Ne4 Qg4?? 22.Bf6 Rd2 23.Qd2 Qe4 24.Qd8 (24...Kf7 25.Bd4 Kg6 26.Qg8+–) 1–0. Rohrbacher – Ganser, Baden–Bayern, 1991.

4.e3 Nf6 5.Nf3 e6 6.b5 ab5 7.ab5 Ra1 8.Ba1 c6 9.bc6 bc6 10.Bd3 Bd6 11.0–0 0–0 12.c4 Re8 (12...Bc8 13.c5 Bc5 14.Bf6 Qf6 15.Bh7 Kh8 16.Bc2+=) 13.cd5 (13.Be5 Be5 14.Ne5 Qc7=) 13...cd5 14.Be5 Qe7 15.Bf6 (15.Qc2 Be5 16.Ne5 Rc8=) 15...Qf6+= (worse is 15...gf6 16.Nc3=) 16.Qb3 (16.Qc2 Rc8 17.Nc3 Qh6+=) 16...Nc6 17.Qc3 (17.Bb5 Rb8 18.Qa4 Ne5 19.Bd7 Nf3 20.gf3 Rb1 21.Rb1 Qg6 22.Qg4 Qb1 23.Kg2 e5+=) 17...e5 18.Na3? (better is 18.Bb5 Rc8 19.Qa1–/+) 18...Ba3–+ 19.Qa3 e4 0–1. tanto (1715) – bmacfie (1900), net–chess.com, 2002.

3.a4 e6

4.Ra3 Nc6 A) 5.Rg3 Nf6 (5...e5 6.Nf3 e4 7.b5 Na5 8.Ng1 ab5 9.ab5 Nf6 10.e3 h6+=) 6.b5 ab5 7.ab5 Na5 8.e3 Ne4 9.Rf3 f6 10.d3 Nd6+=; B) 5.b5 Na5 (5...Nb8 6.Nf3 Nf6 7.Ra1 Bd6 8.e3 0–0 9.Be2 Re8 10.Ne5 Nfd7+=) 6.ba6 ba6 7.Bc3 c5 8.Nf3 Nf6 9.e3 Bd6 10.Be2 d4+=.

4.Ra3 Bd7 A) 5.a5 Nf6 (5...Nc6 6.c3 Bd6 7.d4 Nf6 8.Nf3 e5 9.de5 Ne5 10.Ne5 Be5+=) 6.Bf6 Qf6 7.Rf3 Qe7 8.Rb3 Nc6 9.c3 Ne5 10.Ra3 c5–/+; B) 5.b5 Nf6 (5...Ba3 6.Bg7 Be7 7.Bh8 ab5 8.ab5 Bb5 9.Nf3 Nc6 10.Nc3 Ba6=) 6.Rb3 ab5 7.ab5 Bd6 8.Nf3 c5 9.bc6 Nc6 10.Bc3 e5–/+.

4.Ra3 Nf6 A) 5.Rg3 Bd7 (5...Nbd7 6.e3 Ne4 7.Rh3 e5 8.f3 Nef6 9.Rg3 Be7 10.Be2 0–0–/+) 6.c3 Bd6 7.Rg7 Nh5 8.Rg4 e5 9.e3 Bg4 10.Qg4 Nf6–/+; B) 5.Rb3 Bd6 (5...Nc6 6.b5 ab5 7.ab5 Na5 8.Rf3 Be7 9.e3 0–0 10.Rf4 Bd7+=) 6.e3 Nc6 7.Bc3 e5 8.Nf3 0–0 9.d4 e4 10.Ne5 Nb8–/+.

4.b5 Bd7 A) 5.Nc3 Nf6 (5...d4 6.Ne4 f5 7.Ng3 f4 8.Ne4 Nf6 9.Nf6 Qf6 10.e3 fe3=) 6.Nf3 Bd6 7.e3 e5 8.Be2 e4 9.Nd4 c5 10.bc6 Nc6+=; B) 5.e3 Nf6 (5...c6 6.Nf3 Nf6 7.Be2 Bd6 8.0–0 0–0 9.ba6 Na6 10.Be5 Be5=) 6.Nf3 Bd6 7.Be2 Qe7 8.Ne5 0–0 9.0–0 ab5 10.ab5 Ra1=.

4.b5 Nd7 A) 5.Nf3 Ngf6 (5...ab5 6.ab5 Ra1 7.Ba1 Ngf6 8.e3 Bd6 9.Be2 0–0 10.0–0 e5+=) 6.e3 Bd6 7.Be2 e5 8.0–0 0–0 9.Ba3 Qe7 10.Bd6 Qd6+=; B) 5.e3 ab5 (5...Ngf6 6.Nf3 Bd6 7.Be2 e5 8.Nc3 0–0 9.0–0 c5 10.d3 Re8+=) 6.ab5 Ra1 7.Ba1 e5 8.Nf3 Bd6 9.Be2 Ngf6 10.0–0 Qe7+=.

4.b5 Nf6 A) 5.e3 Bd6 (5...ab5 6.ab5 Ra1 7.Ba1 Bd6 8.f4 Bd7 9.Nf3 0–0 10.Be2 c6=) 6.Nf3 0–0 7.Be2 Re8 8.Nc3 e5 9.0–0 c5 10.d3 Bf5+=; B) 5.Nf3 Bd6 (5...Bb4 6.e3 0–0 7.Be2 Nbd7 8.0–0 ab5 9.ab5 Ra1 10.Ba1 Bd6=) 6.e3 0–0 7.Be2 Re8 8.Ne5 ab5 9.ab5 Ra1 10.Ba1 Nfd7=.

4.e3 Nd7 A) 5.Nf3 f6 (5...Ngf6 6.b5 ab5 7.Bb5 Bd6 8.Ba3 Ba3 9.Ra3 c6 10.Be2 e5+=) 6.Nd4 Nb8 7.Qg4 e5 8.Ne6 Qe7 9.Ng7 Kd8 10.Qf3 Qg7–/+; B) 5.b5 Ngf6 (5...ab5 6.ab5 Ra1 7.Ba1 Ngf6 8.f4 Bd6 9.Nf3 0–0 10.Be2 c5=) 6.Nf3 Bd6 7.Be2 0–0 8.0–0 ab5 9.ab5 Ra1 10.Ba1 e5+=.

4.e3 f6 A) 5.Bc3 Bd6 (5...e5 6.d4 ed4 7.ed4 Nc6 8.b5 Nb4 9.ba6 Qe7 10.Be2 ba6=) 6.Bd3 Qe7 7.Qh5 Kd8 8.b5 e5 9.e4 Be6 10.Nf3 g6+=; B) 5.c3 Bd6 (5...Nh6 6.Nf3 e5 7.Be2 Be6 8.0–0 Bd6 9.a5 0–0 10.d3 Nc6=) 6.Bd3 f5 7.f4 Qh4 8.g3 Qe7 9.Qh5 g6 10.Qd1 Nf6=.

4.e3 Nf6 A) 5.b5 ab5 (5...Bd6 6.Nf3 0–0 7.Be2 Re8 8.Ne5 ab5 9.ab5 Ra1 10.Ba1 Nfd7=) 6.ab5 Ra1 7.Ba1 Bd6 8.Nf3 Nbd7 9.Be2 0–0 10.0–0 e5+=; B) 5.Bc3 Bd6 (5...Ne4 6.b5 Nc3 7.Nc3 ab5 8.ab5 Ra1 9.Qa1 Bd6 10.Nf3 0–0+=) 6.Nf3 0–0 7.Be2 Ne4 8.b5 Nd7 9.0–0 e5 10.Bb2 Nef6+=.

4.Nf3 Bb4?? 5.Bg7+– Nc6 6.Bh8 1–0. marre – hoja68, internet, 2010.

4.Nf3 Bd7 A) 5.Nc3 c6 (5...Nf6 6.b5 Bd6 7.e3 e5 8.Be2 0–0 9.d4 e4 10.Ne5 Qe7+=) 6.b5 Nf6 7.e3 Bd6 8.bc6 Nc6 9.Ba3 Ba3 10.Ra3 Qe7+=; B) 5.e3 Nf6 (5...f6 6.b5 e5 7.Be2 Bd6 8.0–0 Ne7 9.d4 e4 10.Nfd2 ab5=) 6.b5 Bd6 7.Be2 0–0 8.0–0 Re8 9.Ne5 c5 10.f4 ab5=.

4.Nf3 f6 A) 5.c3 Bd6 (5...e5 6.e3 Bd6 7.d3 a5 8.b5 Ne7 9.Be2 0–0 10.Ba3 c5=) 6.e3 e5 7.Be2 Ne7 8.0–0 0–0 9.d3 Be6 10.Nbd2 a5+=; B) 5.b5 e5 (5...Ne7 6.e3 e5 7.Be2 Nf5 8.0–0 Bd6 9.Nc3 e4 10.Ne1 Be6=) 6.e3 Bd6 7.d4 e4 8.Nfd2 f5 9.c4 Nf6 10.c5 Be7=.

4.Nf3 Nf6 A) 5.Bc3 Nbd7 (5...Bd6 6.e3 0–0 7.Be2 Ne4 8.b5 Nd7 9.0–0 e5 10.Bb2 Nef6+=) 6.e3 Bd6 7.Be2 Qe7 8.b5 e5 9.0–0 0–0 10.Bb2 e4+=; B) 5.b5 ab5 (5...Bd6+= 6.e3 0–0 7.Be2 Re8 8.Ne5 ab5 9.ab5 Ra1 10.Ba1 Nfd7+=) 6.ab5 Ra1 7.Ba1 Nbd7 8.e3 Bd6 9.Be2 e5 10.0–0 0–0+=.

3.a4 Nf6

4.e3 Bd7 5.c4 (5.Nf3 e6 6.b5 Bd6=) 5...c6 (5...e6 6.Bc3+=) 6.c5 Qc7 (6...a5 7.b5=) 7.Nf3+= Bg4 8.h3 (8.Bf6 ef6 9.d4 a5+=) 8...Bh5 (8...Bf3 9.Qf3 e5 10.Qg3=) 9.Be2 (9.Bf6 gf6 10.d4 e5+=) 9...Nbd7= 10.d4 e6 11.Nbd2 Be7 12.a5 (12.b5 ab5 13.ab5 Ra1 14.Qa1 cb5 15.Qa8 Bd8 16.Bb5 0–0+=) 12...0–0 (12...0–0–0 13.0–0=) 13.Bd3+= Bg6 14.Be2 (14.Bg6 hg6 (worse is 14...fg6 15.Ng5+/–) 15.0–0 Rad8+=) 14...h6 15.0–0 Bh7 16.Nh2 Ne4 17.Ne4 Be4 18.Bd3 Nf6 19.Be2 Bh7 20.Bc3 Ne4 21.Be1 f5 22.f3 Ng3 23.Bg3 Qg3 24.Qe1 Bh4 (24...Qe1!? 25.Rfe1 f4=) 25.Qg3+= Bg3 26.f4 g5 27.Rf3 gf4 (27...Bh2 28.Kh2 Kf7 29.fg5 hg5 30.Bd3+=) 28.Nf1 (28.ef4!? Bh4 29.Re3+/–) 28...Bh4+= 29.g3 (better is 29.ef4 Bf6 30.Rd3+=) 29...fg3–/+ 30.Ng3 Bg6 31.Kh2 Kh7 32.Rg1 Rg8 33.Rf2 Bg5 34.Nf1 (34.Rf3 Rg7–/+) 34...Raf8 35.Bd3 f4 36.Bg6 Rg6 (worse is 36...Kg6 37.h4 fe3 38.Rf8 Rf8 39.hg5 hg5 40.Ne3+=) 37.ef4? (better is 37.Nd2–/+) 37...Rf4 38.Rf4 Bf4 39.Kh1 Rf6 (39...Bc1!? 40.Rg2 Rg2 41.Kg2–+) 40.Nh2 (40.Ng3 Bd2–+) 40...h5 (40...Be3 41.Ng4 Bg1 42.Nf6 Kg6 43.Ne8 Bd4 44.Nd6–+) 41.Nf3 (better is 41.Rd1–+) 41...Be3 42.Rf1 (42.Rg3–+) 42...Kh6 (better is 42...Bd4 43.Kg2 Rg6 44.Kh2 Bc3–+) 43.Kg2–/+ Rg6 44.Kh2 Bf4 45.Kh1 Rg3 46.Ng1 (46.h4 Kg6 47.Ne1 Rh3 48.Kg2 Rh4–+) 46...Be3 (better is 46...Kg5–+) 47.Kh2?? (better is 47.Nf3–+) 47...Rg1 48.Rg1 (48.Rf3 Re1 49.Rf7 Re2 50.Kg3–+) 48...Bg1 (48...Bd4?! 49.Rg8 Bc3 50.Re8–/+) 49.Kg1 Kg5 50.Kg2 (50.Kf1 Kf4 51.Kf2 h4–+) 50...Kf4 51.Kf2 Ke4 (better is 51...h4!? 52.Ke2–+) 52.Kg3 Kd4 53.Kh4 Kc4 54.Kh5 d4 55.Kg4 d3 56.Kf3 Kc3 57.h4 Kc2 0–1. Cerami,Giuseppe (1780) – Sgarito,Lino, 5th Nicolo La Rosa op, 2007.

4.e3 e5 5.Be5 Bb4 6.c3 +=.

4.Bf6 gf6 5.e3 e5 6.c3 Rg8 7.d4 Bf5 8.g3 Nc6 9.b5 ab5 10.Bb5 ed4 (10...Qd6 11.Nf3+=) 11.cd4= Bb4 12.Nd2 ½–½. Jirousek,Jim – Schreber,Daniel Paul, corr or01–010 E–mail, 2001.

3.d3 Nc6

4.a3 Qd6 5.Nd2 (5.Nf3 Nf6 6.Nbd2 e5 7.c4 d4 8.Qa4 Be7 9.c5 Qd5 10.g3; 5.Nc3 Nf6 6.Nf3 g6 7.Qd2 Bg7 8.e3 0–0 9.Be2 e5 10.0–0; 5.g3 Nf6 6.Nf3 g6 7.Nbd2 Bg7 8.e4 Qd7 9.Bg2 0–0 10.e5) 5...Nf6 6.Ngf3 Bf5 7.c4 e6 8.Qa4 Qd7 9.cd5 ed5 10.b5.

4.a3 e5 5.g3 Be6 6.Bg2 Nf6 7.e4 de4 8.de4 Qd1 9.Kd1 Bd6 10.Nd2 0–0 11.Ngf3 Rad8 12.Ke2 Ne7?? (12...Rd7 13.Rhd1 Rfd8 14.c4=) 13.Rhd1 (13.Ne5!? Ne8 14.Nec4+/–) 13...Bg4 (better is 13...Ng6!?+=) 14.h3+= Bh5 15.g4 Bg6 16.Ne5 (16.Be5?! Ne4 17.Ne4 Be4 18.Bd6 Rd6=) 16...Be5 17.Be5 Ne8 18.f3 f6 19.Bh2 Bf7 20.Nf1 Bc4 21.Kf2 Nd6 22.Ne3 Bb5 23.Rd2?? (better is 23.a4 Bd7 24.c4+–) 23...Ne4!–+ 24.fe4 Rd2 25.Kf3 Rfd8 (25...Ng6!? 26.Bc7 Rc8 27.Bg3 Be2 28.Kf2–+) 26.Bc7–/+ R8d7 27.Bf4 Nc6 28.Kg3? g5–+ 0–1. Jokmin,Alex – Venturas,Bob, RN–2010–0–00307, 2010.

4.a3 e6 5.Nf3 (5.Nd2 Nf6 6.Ngf3 Be7 7.e4 0–0 8.Be2 de4 9.Ne4 Nd5 10.0–0) 5...Nf6 6.Nbd2 h6 7.e4 Be7 8.e5 Nd7 9.Be2 f6 10.ef6.

4.a3 Bf5 5.Nf3 (5.Nd2 Nf6 6.Ngf3 e6 7.g3 Be7 8.Bg2 0–0 9.0–0 Qd6 10.Qe1; 5.h3 e6 6.Nf3 Nf6 7.Nbd2 Bd6 8.g4 Bg6 9.Nb3 0–0 10.Qd2; 5.g3 Nf6 6.Nf3 g6 7.Bg2 Bg7 8.Nbd2 0–0 9.0–0 Qd6 10.c4; 5.Nc3 Nf6 6.Nf3 e6 7.e3 Be7 8.d4 0–0 9.Bd3 Ne4 10.0–0) 5...Nf6 6.g3 e6 7.Bg2 Bd6 8.0–0 0–0 9.Nbd2 h6 10.c4.

4.a3 Nf6 5.Nf3 (5.Nd2 g6 6.g3 Bg4 7.Ngf3 Bg7 8.Bg2 0–0 9.0–0 Qd6 10.c4) 5...g6 6.g3 Bh6 7.Nbd2 0–0 8.Bg2 Bf5 9.c4 Qd7 10.cd5.

4.a3 h6 5.Nd2 e5 6.e4 d4 7.c3 b5 8.cd4 Nd4 9.Ngf3 Nf3 10.Nf3 Bd6 11.Ne5 Qf6 12.Nc4 Qg6 13.Nd6 cd6 14.Qf3 Be6 15.Be2 Rc8 0–1. Jokmin,Alex – Venturas,Bob, SN–2010–0–00280, 2010.

4.a3 h6 5.Nd2 Nf6 6.Ngf3 Bf5 7.c4 e6 8.Qa4 dc4 9.e4 Bg6 10.Ne5.

4.a3 h6 5.Nf3 Nf6 6.Nbd2 Bf5 7.Nb3 e6 8.Nbd4 Nd4 9.Nd4 Bd6 10.g3.

4.a3 h6 5.g3 e5 6.Bg2 Nf6 7.Nf3 Bd6 8.0–0 d4 9.e3 de3 10.fe3 0–0 11.Nbd2 Bg4 12.Qe1 Qd7 13.Nc4 Now all is on e5 13...b5?? (13...Rae8 14.Nd6 cd6 15.c4=) 14.Nd6?? (better is 14.Nfe5 Ne5 15.Ne5 (15.Be5?! bc4 16.Bf6 gf6=) 15...Be5 16.Be5+–) 14...cd6= 15.Nd2 Rac8 16.c4 bc4 17.Nc4 Rb8 18.Rc1 Rfc8 19.d4 ed4 20.ed4 Re8 21.Qd2 Re2 22.Qc3 Bh3 23.Rf2 Rbe8?? 24.Re2+– Re2 25.Rc2?? Qe8?? 26.Re2+– Qe2 27.Bh3 Ne4 28.Qe3 Qd1 29.Bf1 d5 30.Ne5 Ne7 31.Qc1 Qf3 32.Nf3 0–1. Jokmin,Alex – Venturas,Bob, RN–2010–0–00323, 2010.

4.a3 h6 5.g3 Nf6 6.Nf3 Bg4 7.Bg2 e6 8.0–0 Be7 9.Nd4 0–0 10.h3.

4.c3 A) 4...e5 5.Nf3 (5.Nd2 Nf6 6.Ngf3 Be7 7.e4 0–0 8.Be2 Nh5 9.0–0 Nf4 10.g3; 5.g3 Nf6 6.Bg2 Bd6 7.Nf3 0–0 8.0–0 h6 9.Nbd2 Qe7 10.e4; 5.e4 de4 6.de4 Qd1 7.Kd1 Nf6 8.Nd2 Be6 9.Kc2 Ng4 10.Nh3) 5...Nf6 6.Nbd2 Be7 7.e4 0–0 8.Be2 Nh5 9.0–0 Nf4 10.g3; B) 4...g6 5.Nf3 (5.Nd2 Nf6 6.Ngf3 Bg7 7.g3 0–0 8.Bg2 Qd6 9.0–0 Bg4 10.a4; 5.g3 Bg7 6.Bg2 Nh6 7.Qc2 0–0 8.Nf3 Ng4 9.0–0 Qd6 10.Nbd2) 5...Nf6 6.Nbd2 Qd6 7.g3 Bh6 8.Bg2 0–0 9.0–0 Bg4 10.Qc2; C) 4...Nf6 5.Nf3 (5.Nd2 e5 6.Ngf3 Be7 7.e4 0–0 8.Be2 Nh5 9.0–0 Nf4 10.g3; 5.g3 e5 6.Bg2 Be7 7.Nf3 0–0 8.0–0 Bg4 9.Nbd2 g6 10.h3) 5...e5 6.Nbd2 Bd6 7.e4 0–0 8.Be2 Be6 9.0–0 h6 10.h3.

4.Nd2 A) 4...Nf6 5.Ngf3 (5.c4 Nb4 6.Ngf3 c5 7.g3 e6 8.Ne5 Bd6 9.Bg2 0–0 10.0–0) 5...Nb4 6.g3 e6 7.Bg2 Be7 8.0–0 0–0 9.Ne5 Nd7 10.Nef3; B) 4...e6 5.a3 (5.g3 Nf6 6.a3 Bd6 7.Ngf3 0–0 8.Bg2 Bd7 9.0–0 Qe7 10.e4; 5.Ngf3 Nb4 6.g3 Nf6 7.Bg2 Be7 8.0–0 0–0 9.c4 b5 10.cd5; 5.c3 Nf6 6.Ngf3 Be7 7.g3 0–0 8.Bg2 e5 9.0–0 Bg4 10.h3; 5.e4 Nb4 6.Be2 Nf6 7.e5 Nd7 8.Ngf3 Nc5 9.a3 Nc6 10.a4) 5...Nf6 6.Ngf3 Be7 7.e4 0–0 8.Be2 h6 9.0–0 Re8 10.e5; C) 4...Nb4 5.Ngf3 (5.a3 Nc6 6.Ngf3 Nf6 7.e4 g6 8.e5 Nh5 9.g3 Bg7 10.Bg2; 5.g3 Nf6 6.Ngf3 e6 7.Bg2 Bd6 8.e4 Be7 9.0–0 0–0 10.Ne5; 5.c4 Nf6 6.Qa4 Nc6 7.Ngf3 dc4 8.dc4 e6 9.g3 Bb4 10.Qc2 ; 5.e3 Nf6 6.Ngf3 g6 7.Rb1 a5 8.Be2 Bh6 9.h3 0–0 10.0–0) 5...Nf6 6.g3 g6 7.c4 Bg7 8.Qb3 c5 9.a3 dc4 10.Nc4.

4.Nf3 A) 4...e6 5.c3 (5.a3 Nf6 6.Nbd2 Bd7 7.e4 Be7 8.Be2 0–0 9.0–0 h6 10.c4; 5.Nbd2 Nb4 6.g3 Nf6 7.Bg2 Bd6 8.e4 Be7 9.0–0 0–0 10.Ne5) 5...Nf6 6.Nbd2 Be7 7.g3 0–0 8.Bg2 Qd6 9.0–0 Bd7 10.e4; B) 4...Nb4 5.g3 (5.c4 Nf6 6.Qa4 Nc6 7.Nbd2 e6 8.g3 Bd7 9.Qb3 b5 10.cd5; 5.a3 Nc6 6.g3 Nf6 7.Bg2 g6 8.Nbd2 Bg7 9.c4 0–0 10.0–0) 5...Nf6 6.Bg2 e6 7.Nbd2 Be7 8.0–0 0–0 9.Nb3 c5 10.Qd2; C) 4...Qd6 5.a3 (5.c3 Nf6 6.Nbd2 g6 7.g3 Bg7 8.Bg2 0–0 9.0–0 Bg4 10.Qb3; 5.Nbd2 Qb4 6.Rb1 Qa5 7.g3 Nf6 8.Bg2 g6 9.0–0 Bh6 10.c4) 5...Nf6 6.Nbd2 g6 7.c4 Bg7 8.e4 de4 9.Ne4 Qd8 10.Be2; D) 4...Nf6 5.a3 (5.Nbd2 Nb4 6.c4 e6 7.cd5 ed5 8.a3 Nc6 9.e4 de4 10.de4) 5...g6 6.Nc3 d4 7.Na4 Bg7 8.g3 0–0 9.Bg2 Qd6 10.0–0.

4.g3 A) 4...e5 5.a3 Nf6 6.Bg2 Be6 7.Nf3 Bd6 8.Nbd2 0–0 9.0–0 h6 10.c4; B) 4...Bf5 5.Nf3 (5.Bg2 e5 6.a3 Nf6 7.Nf3 Bd6 8.Nbd2 0–0 9.0–0 Re8 10.c4; 5.a3 Nf6 6.Nf3 g6 7.Bg2 Bh6 8.Nd4 Qd6 9.Nc6 bc6 10.Nd2; 5.Nd2 Nf6 6.a3 g6 7.Bh3 Bh3 8.Nh3 Bh6 9.Nf3 0–0 10.0–0; 5.c3 Nf6 6.Nd2 e5 7.Bg2 Be7 8.Ngf3 0–0 9.0–0 Qd6 10.Qc2) 5...Nf6 6.Bg2 e6 7.a3 Bd6 8.0–0 0–0 9.Nbd2 h6 10.c4; C) 4...Nf6 5.Nf3 (5.Nd2 e5 6.a3 Be7 7.Ngf3 Qd6 8.c4 d4 9.Bg2 0–0 10.0–0; 5.a3 g6 6.Nf3 Bg7 7.Bg2 0–0 8.0–0 Qd6 9.Nbd2 Bg4 10.c4; 5.Bg2 Qd6 6.a3 g6 7.Nf3 Bg7 8.0–0 0–0 9.Nbd2 Be6 10.c4; 5.c3 e5 6.Nf3 Bf5 7.Bg2 e4 8.Nh4 Bg4 9.Qd2 ed3 10.Qd3) 5...e5 6.a3 Bd6 7.Bg2 0–0 8.0–0 h6 9.Nbd2 Re8 10.c4.

3.d3 Qd6

4.a3 A) 4...Nc6 5.Nf3 (5.Nd2 Nf6 6.Ngf3 g6 7.e4 Qe6 8.Ng5 Qd6 9.Qe2 d4 10.Nc4) 5...Nf6 6.Nbd2 g6 7.c4 Bg7 8.e4 de4 9.Ne4 Qd8 10.Be2; B) 4...Bd7 5.Nf3 (5.Nd2 Nc6 6.c4 Nf6 7.Ngf3 e5 8.g3 Be7 9.cd5 Qd5 10.Bg2; 5.e4 de4 6.de4 Qg6 7.Qe2 Nc6 8.Nc3 Nf6 9.Nf3 e5 10.Nd5; 5.Nc3 Nf6 6.Nf3 e5 7.g3 Be7 8.Bg2 0–0 9.0–0 d4 10.Ne4; 5.Qd2 Nf6 6.Nf3 Nc6 7.Nc3 e5 8.g3 Be7 9.Bg2 0–0 10.0–0) 5...Nc6 6.Nbd2 Nf6 7.c4 Bg4 8.h3 Bf3 9.Nf3 dc4 10.dc4; C) 4...Bg4 5.Nf3 (5.Nd2 Nf6 6.h3 Bd7 7.Ngf3 Nc6 8.c4 Rd8 9.cd5 Nd5 10.Qb3; 5.h3 Bf5 6.Nd2 Nc6 7.c4 e6 8.Ngf3 Nf6 9.Qa4 dc4 10.Nc4; 5.Qd2 Nc6 6.h3 Bf5 7.g4 Bg6 8.Nf3 0–0–0 9.Nc3 d4 10.Ne4; 5.Nc3 Nf6 6.h3 Bd7 7.Nf3 Nc6 8.e3 e6 9.d4 Be7 10.Bd3) 5...Nc6 6.Nbd2 Nf6 7.h3 Bf3 8.Nf3 d4 9.c3 dc3 10.Bc3; D) 4...Nf6 5.Nf3 (5.Nd2 Nc6 6.Ngf3 b5 7.c3 g6 8.a4 Rb8 9.g3 Bg7 10.Bg2) 5...Nc6 6.Nbd2 g6 7.c4 Bg7 8.e4 de4 9.Ne4 Qd8 10.Nf6.

4.Nd2 Qb4 5.Rb1 Qa5 6.Ngf3 Nc6 7.g3 Nf6 8.Bg2 g6 9.0–0 Bh6 10.c4.

4.Nf3 Qb4 5.Bc3 Qb6 6.Nbd2 Nc6 7.d4 Nf6 8.Rb1 Qa7 9.e3 g6 10.Ne5.

3.d3 Nf6

4.a3 A) 4...g6 5.g3 (5.Nf3 Bg7 6.g3 Be6 7.Nbd2 0–0 8.Bg2 Nc6 9.0–0 Qd6 10.Nb3; 5.Nd2 Nc6 6.Ngf3 Bg7 7.g3 Bf5 8.Bg2 0–0 9.0–0 Qd7 10.c4; 5.e3 Bh6 6.Nf3 0–0 7.Be2 Nc6 8.0–0 Qd6 9.d4 Bf5 10.Nc3) 5...Nc6 6.Nf3 Bg4 7.Bg2 Qd6 8.0–0 Bg7 9.Nbd2 0–0 10.c4; B) 4...e6 5.Nf3 (5.Nd2 c5 6.c3 Nc6 7.Ngf3 Bd6 8.g3 0–0 9.Bg2 Bd7 10.0–0; 5.g3 c5 6.c3 a5 7.b5 Nbd7 8.Nf3 Bd6 9.Nbd2 0–0 10.Bg2) 5...c5 6.c3 Nc6 7.Nbd2 Bd6 8.g3 0–0 9.Bg2 Bd7 10.0–0; C) 4...Nc6 5.Nf3 (5.Nd2 g6 6.Ngf3 Bg7 7.g3 0–0 8.Bg2 Re8 9.0–0 e5 10.e4; 5.e3 g6 6.Nf3 Bg7 7.Be2 Qd6 8.Nc3 0–0 9.d4 Bf5 10.0–0) 5...g6 6.g3 Bh6 7.Bg2 Qd6 8.Nbd2 0–0 9.c4 Bg4 10.cd5.

4.Nd2 A) 4...Nc6 5.a3 Bf5 6.Ngf3 e6 7.g3 Bd6 8.Bg2 0–0 9.c4 Qd7 10.0–0; B) 4...Qd6 5.a3 (5.Ngf3 Qb4 6.Rb1 Qa5 7.g3 Nc6 8.Bg2 g6 9.0–0 Bh6 10.c4) 5...Nc6 6.Ngf3 g6 7.c4 Bg7 8.b5 ab5 9.cb5 Nd8 10.e4; C) 4...h5 5.Ngf3 (5.a3 Nc6 6.Ngf3 Bf5 7.Nb3 Qd6 8.Nbd4 Nd4 9.Bd4 a5 10.c3; 5.c4 Nc6 6.a3 e6 7.Ngf3 Bd6 8.g3 0–0 9.Bg2 b6 10.0–0) 5...Nc6 6.a3 Bf5 7.c4 e6 8.Nh4 Bh7 9.g3 Be7 10.Bg2; D) 4...Bd7 5.Ngf3 (5.a3 Nc6 6.Ngf3 g6 7.e4 Be6 8.e5 Nh5 9.Ng5 Qc8 10.Be2; 5.g3 e6 6.a3 a5 7.c3 Bd6 8.Bg2 0–0 9.Ngf3 Qe8 10.0–0; 5.Nb3 Nc6 6.a3 e6 7.Nf3 Bd6 8.Qd2 0–0 9.g3 e5 10.Bg2; 5.c4 e6 6.a3 c5 7.cd5 ed5 8.bc5 Bc5 9.Nb3 Ba4 10.Qc1) 5...e6 6.a3 c5 7.e4 de4 8.de4 cb4 9.e5 Nd5 10.Bc4; E) 4...e6 5.a3 (5.c3 Nc6 6.Ngf3 Be7 7.g3 e5 8.Bg2 0–0 9.0–0 Re8 10.Qc2) 5...c5 6.c3 Bd6 7.Ngf3 Nc6 8.g3 0–0 9.Bg2 Bd7 10.0–0.

4.e3 c6 5.c4 (5.Nf3 e6 6.Qd2 a5 7.ba5 Nbd7 8.Bc3 Nc5 9.Be2 Na4 10.Bd4; 5.Be2 e6 6.Bc3 c5 7.bc5 Bc5 8.Nd2 Nc6 9.Ngf3 0–0 10.0–0; 5.Nd2 a5 6.ba5 Qa5 7.Ngf3 Nbd7 8.Be2 e6 9.0–0 Bd6 10.a4; 5.a3 a5 6.Nd2 ab4 7.Ngf3 e6 8.ab4 Ra1 9.Qa1 Bb4 10.Be2) 5...Bg4 (5...e6 6.Bc3 dc4 7.Nf3 Nbd7 8.dc4 Ne4 9.a3 c5 10.Qa4) 6.Nf3 (6.Be2 Be2 7.Ne2 dc4 8.dc4 Qd1 9.Kd1 Nbd7 10.Nd2) 6...e6 7.a3 (7.Qb3 Nbd7 8.Nbd2 a5 9.a3 Be7 10.Be2) 7...Bd6 (7...dc4 8.dc4 (8.Qc2 cd3 9.Bd3 Bf3 10.gf3) 8...Qd1 9.Kd1+= c5 10.b5) 8.Be2 (8.Nc3 Nbd7 9.c5 Bc7 10.Be2) 8...Bf3 (8...Nbd7 9.c5 Bc7 10.Nbd2) 9.Bf3 dc4 (9...Nbd7 10.c5) 10.Qc2?? (10.dc4 Qc7+=) 10...b5?? (10...cd3 11.Qc3–+) 11.0–0?? (better is 11.dc4!? 0–0 12.c5+=) 11...Qc7 (11...cd3!? 12.Qc3 Ra7–/+) 12.h3+= Nbd7 (12...cd3 13.Qd3 Bh2 14.Kh1 Be5 15.Be5 Qe5+=) 13.e4 (13.dc4 Bh2 14.Kh1 Be5=) 13...Be7 (better is 13...cd3!? 14.Qd3 Ne5–/+) 14.e5 Nd5 15.Nd2? (15.dc4 bc4 16.Qc4 a5=) 15...N7b6?? (15...cd3!? 16.Qd3 Ne5 17.Be5 Qe5–/+) 16.Ne4 (16.dc4 bc4 17.Nc4 Nc4 18.Qc4 a5+=) 16...Nf4 (better is 16...0–0 17.Be2 Nf4–/+) 17.Bc1?? (better is 17.dc4 Nc4 18.Nd2+=) 17...Nd3–+ (17...Qe5?! 18.Be3 Nfd5 19.Bb6 Nb6 20.dc4–/+; 17...cd3?! 18.Nd6 Kf8 19.Qc5–+) 18.Be2 Qd7 (better is 18...Nc1!? 19.Rfc1 Qe5 20.Bf3–+) 19.Be3 Bb4?? (better is 19...Nd5–+) 20.ab4+/– Nb4 21.Qb2 a5?? (better is 21...N4d5 22.Nd6 Kf8 23.Bb6 Nb6+/–) 22.Nc5 (better is 22.Nd6 Kf8 23.Bb6+–) 22...Qc7= 23.Bd2 N4d5 (23...0–0=) 24.Bf3?? (better is 24.Ba5 0–0 25.Rfc1+=) 24...0–0 (better is 24...b4 25.Qd4 0–0–/+) 25.Ba5 +=. Kulemann,Michael – Feist,Hans, Augsburg op 2nd, 1995.

4.e3 Nc6 5.a3 (5.Nf3 Nb4 6.Be2 g6 7.Qd2 Nc6 8.0–0 Bh6 9.Nd4 0–0 10.f4; 5.Nd2 e5 6.a3 Bd6 7.c4 0–0 8.Ngf3 d4 9.ed4 Nd4 10.Be2; 5.Be2 Nb4 6.Nf3 g6 7.Qd2 Nc6 8.0–0 Bg7 9.Nc3 0–0 10.Ba3) 5...g6 6.Nf3 Bg7 7.Be2 0–0 8.Nc3 Bf5 9.0–0 Qd6 10.d4.

4.e3 e5 5.a3 (5.Nf3 Bb4 6.Nbd2 Nbd7 7.Ne5 Ne5 8.Be5 0–0 9.Rb1 c5 10.Be2; 5.Nd2 Nc6 6.Ngf3 Bb4 7.Ne5 Ne5 8.Be5 0–0 9.c3 Ng4 10.cb4; 5.c3 Nc6 6.Nf3 Bd6 7.Be2 0–0 8.Nbd2 h6 9.Qc2 Qe7 10.e4) 5...Nc6 6.Nf3 Bd6 7.c4 d4 8.ed4 Nd4 9.Be2 c5 10.0–0.

4.e3 e6 5.a3 (5.c3 Bd6 6.Nf3 0–0 7.Nbd2 Bd7 8.Be2 a5 9.a3 Nc6 10.0–0) 5...c5 6.Nf3 cb4 7.Be2 Nc6 8.0–0 Bd7 9.ab4 Bb4 10.Nbd2.

4.e3 Bf5 5.a3 (5.Nd2 Nc6 6.a3 e6 7.Be2 e5 8.Ngf3 Qe7 9.c4 e4 10.Nh4; 5.Be2 Nc6 6.Nf3 Nb4 7.Nc3 e6 8.Nh4 Bg6 9.0–0 Bd6 10.h3; 5.Nf3 e6 6.a3 Nc6 7.Nc3 Bd6 8.Be2 0–0 9.0–0 h6 10.Qd2; 5.Nc3 Nc6 6.Nf3 e5 7.a3 Bd6 8.Nd5 Nd5 9.e4 Nde7 10.ef5) 5...Nc6 6.Nd2 e6 7.Be2 h6 8.Ngf3 Be7 9.0–0 0–0 10.Nb3.

4.e3 g6 5.Nf3 (5.a3 Nc6 6.Nf3 Bf5 7.Be2 Bg7 8.0–0 0–0 9.Nd4 Nd4 10.Bd4; 5.Be2 Nc6 6.a3 Bg7 7.Nf3 Qd6 8.0–0 0–0 9.d4 Ne4 10.Nbd2; 5.Nc3 Nc6 6.a3 Bg7 7.Nf3 e5 8.Be2 0–0 9.0–0 Qd6 10.Na4; 5.Nd2 Nc6 6.Ngf3 Bg7 7.a3 0–0 8.Be2 Ng4 9.d4 Bf5 10.h3) 5...Bh6 6.a3 Nc6 7.Be2 0–0 8.0–0 Qd6 9.Nbd2 Bf5 10.c4.

4.Nf3 A) 4...Nc6 5.Nbd2 (5.a3 g6 6.e3 Bg7 7.Be2 0–0 8.0–0 Bf5 9.Nd4 Nd4 10.Bd4; 5.e3 e5 6.a3 Bd6 7.c4 0–0 8.c5 Be7 9.Ne5 Ne5 10.Be5) 5...Nb4 6.g3 g6 7.c4 Bg7 8.Qb3 c5 9.a3 dc4 10.Nc4; B) 4...e6 5.a3 (5.c3 Nc6 6.Nbd2 Bd6 7.g3 0–0 8.Bg2 e5 9.0–0 Bg4 10.e4) 5...c5 6.g3 Nc6 7.Bg2 cb4 8.0–0 Bd7 9.Qc1 Bd6 10.ab4; C) 4...g6 5.Nbd2 (5.e4 de4 6.de4 Qd1 7.Kd1 Nc6 8.Nbd2 Bh6 9.Bf6 ef6 10.c3; 5.a3 Nc6 6.e3 Bg7 7.Be2 Qd6 8.0–0 0–0 9.c4 dc4 10.dc4; 5.g3 Nc6 6.Bg2 Qd6 7.a3 Bg7 8.0–0 0–0 9.Nbd2 Be6 10.c4) 5...Bg7 6.c4 0–0 7.Qa4 dc4 8.dc4 Bd7 9.b5 Bf5 10.Nd4; D) 4...h6 5.a3 (5.Nbd2 Nc6 6.a3 Bf5 7.Nb3 e6 8.g3 Bd6 9.Bg2 0–0 10.0–0; 5.g3 Nc6 6.a3 Bf5 7.Bg2 e6 8.0–0 Be7 9.Nbd2 0–0 10.c4) 5...Nc6 6.Nbd2 Bf5 7.c4 e6 8.Qa4 dc4 9.e4 Bg6 10.Ne5; E) 4...Qd6 5.a3 (5.Nbd2 Qb4 6.Rb1 Qa5 7.g3 Nc6 8.Bg2 g6 9.0–0 Bh6 10.c4; 5.c3 Nc6 6.Nbd2 g6 7.e4 Bg7 8.Be2 0–0 9.0–0 Rd8 10.ed5; 5.Qd2 Nc6 6.a3 e5 7.Nc3 Be7 8.b5 Nd4 9.ba6 ba6 10.Nd4) 5...Nc6 6.Nbd2 g6 7.e4 e5 8.ed5 Nd5 9.Qe2 Nf4 10.Be5.

3.d3 h5

4.a3 A) 4...Bf5 5.Nf3 (5.Nd2 Nf6 6.Ngf3 Nc6 7.c4 e6 8.Qa4 dc4 9.e4 Bg6 10.Ne5; 5.Nc3 Nf6 6.e4 Bg4 7.f3 Be6 8.Nge2 Nc6 9.Nf4 Qd6 10.Ne6; 5.e4 de4 6.de4 Qd1 7.Kd1 Be4 8.Nc3 Bc6 9.Nf3 Nf6 10.Ke1; 5.Qd2 Nc6 6.Nf3 Nf6 7.Nc3 e6 8.g3 d4 9.Na4 b5 10.Nc5) 5...Nc6 6.Nbd2 Nf6 7.Nb3 e6 8.Nbd4 Nd4 9.Nd4 Bd6 10.g3; B) 4...Nc6 5.Nf3 (5.Nd2 Nf6 6.Ngf3 Bf5 7.c4 e6 8.Qa4 dc4 9.e4 Bg6 10.Rc1) 5...Nf6 6.Nbd2 Bf5 7.c4 e6 8.Qa4 dc4 9.e4 Bg6 10.Rc1; C) 4...Qd6 5.Nf3 (5.Nd2 Nc6 6.Ngf3 Nf6 7.c4 Bg4 8.h3 Bd7 9.cd5 Nd5 10.Nc4; 5.e4 Nc6 6.Nf3 de4 7.de4 Qd1 8.Kd1 Nf6 9.Nbd2 Bg4 10.Bd3) 5...Nc6 6.Nbd2 Nf6 7.c4 e5 8.Qa4 Bd7 9.c5 Qe6 10.b5; D) 4...h4 5.Nf3 (5.Nd2 Nc6 6.Ngf3 Nf6 7.c4 h3 8.Rg1 hg2 9.Bg2 e6 10.Rc1) 5...Nf6 6.Nbd2 Nc6 7.c4 e6 8.h3 Bd7 9.e3 Bd6 10.Be2; E) 4...Nf6 5.Nd2 (5.Nf3 Nc6 6.Nbd2 Bf5 7.Nb3 e6 8.Nbd4 Nd4 9.Nd4 Bg6 10.e3) 5...Nc6 6.Ngf3 Bf5 7.Nb3 g6 8.Ne5 Qd6 9.Nc6 Qc6 10.Nd4.

4.Nc3 A) 4...Nc6 5.a3 (5.Nf3 Nf6 6.a3 e5 7.e3 Be7 8.Be2 d4 9.Ne4 0–0 10.0–0; 5.b5 ab5 6.Nb5 Nf6 7.Nf3 Bf5 8.Qd2 e6 9.Qf4 Bb4 10.c3; 5.e3 Nb4 6.Nf3 Nf6 7.Be2 g6 8.Qb1 Qd6 9.0–0 Nc6 10.a4) 5...Nf6 6.Nf3 e5 7.e3 Bd6 8.Be2 0–0 9.0–0 Bf5 10.Nd5; B) 4...Qd6 5.Rb1 (5.Nf3 Qb4 6.Rb1 Nc6 7.e3 Nf6 8.Be2 Qd6 9.0–0 g6 10.a4; 5.a3 Nf6 6.Nf3 Nc6 7.g3 Bg4 8.Bg2 Bf3 9.Bf3 h4 10.Na4) 5...Qb4 6.Nf3 Nc6 7.e3 Nf6 8.Be2 Qd6 9.0–0 b5 10.d4; C) 4...d4 5.Ne4 (5.Na4 Nf6 6.c3 dc3 7.Bc3 Nd5 8.Nf3 Nc6 9.Qb3 e6 10.a3) 5...Nc6 6.Nf3 Nf6 7.c3 e5 8.a3 dc3 9.Bc3 Bd6 10.Neg5; D) 4...Nf6 5.Nf3 (5.a3 Nc6 6.Nf3 e5 7.e3 Be7 8.Be2 0–0 9.0–0 d4 10.Ne4; 5.e3 e5 6.a3 c5 7.bc5 Bc5 8.Nf3 Nc6 9.Be2 Qb6 10.Rb1) 5...Nc6 6.a3 e5 7.Na4 b5 8.Nc5 Bc5 9.bc5 d4 10.g3.

4.Qd2 A) 4...Nc6 5.a3 (5.Nf3 Nf6 6.a3 Bf5 7.Nc3 d4 8.Na4 g6 9.e4 Bh6 10.Qd1) 5...Nf6 6.Nf3 g6 7.e3 Bh6 8.Be2 0–0 9.0–0 Re8 10.Ne5; B) 4...Bf5 5.Nf3 Nc6 6.Nd4 Qd7 7.Nc6 Qc6 8.Bd4 Nf6 9.Nc3 e6 10.Rb1; C) 4...e6 5.Nf3 (5.a3 Nf6 6.Nf3 Be7 7.Nc3 Nc6 8.g3 0–0 9.Bg2 e5 10.0–0; 5.Nh3 Nc6 6.a3 Nf6 7.Nc3 e5 8.Ng5 h4 9.0–0–0 Be7 10.e3; 5.g3 Nc6 6.a3 h4 7.gh4 Nge7 8.Qg5 f6 9.Qg2 Rh4 10.Nf3) 5...Nf6 6.a3 Bd6 7.g3 Nc6 8.Bg2 0–0 9.0–0 e5 10.Nc3; D) 4...Nf6 5.Nf3 (5.a3 g6 6.Nf3 Nc6 7.e3 Bg7 8.Be2 Bg4 9.Nc3 d4 10.Na4; 5.Nc3 Nc6 6.Nf3 e5 7.b5 ab5 8.Nb5 Bd7 9.a4 Bb4 10.Bc3) 5...Nc6 6.a3 g6 7.e3 Bh6 8.Be2 0–0 9.0–0 Qd6 10.Qc3.

4.Nd2 A) 4...Nf6 5.Ngf3 (5.a3 e6 6.Ngf3 c5 7.bc5 Bc5 8.Nb3 Be7 9.g3 Nc6 10.Bg2; 5.c4 Nc6 6.b5 Na5 7.Ngf3 e6 8.Qc2 ab5 9.cb5 Bd7 10.a4) 5...Nc6 6.a3 Bg4 7.c4 e6 8.h3 Bf3 9.Nf3 Bd6 10.Qc2; B) 4...e6 5.Ngf3 (5.a3 Nf6 6.Ngf3 c5 7.bc5 Bc5 8.Nb3 Be7 9.g3 Nc6 10.Bg2; 5.g3 Nf6 6.a3 c5 7.c3 Be7 8.Ngf3 Nc6 9.Bg2 0–0 10.0–0; 5.e4 Bb4 6.Bg7 Rh7 7.Bb2 de4 8.de4 Nf6 9.Bd3 Rg7 10.Qf3; 5.c3 Nc6 6.Ngf3 Nf6 7.g3 Be7 8.Bg2 0–0 9.0–0 e5 10.c4) 5...Nf6 6.a3 Nc6 7.e4 Be7 8.Be2 0–0 9.0–0 b6 10.e5; C) 4...Qd6 5.c4 (5.Ngf3 Qb4 6.Rb1 Qa5 7.Qc1 Nf6 8.c4 Nc6 9.cd5 Nd5 10.e4; 5.a3 Nf6 6.Ngf3 Nc6 7.c4 Bg4 8.cd5 Nd5 9.Nc4 Qe6 10.Qd2; 5.e4 Nf6 6.a3 Nc6 7.Ngf3 e5 8.ed5 Qd5 9.c4 Qd6 10.Qe2; 5.Bc3 Nc6 6.Ngf3 Nf6 7.e4 e5 8.Be2 Be6 9.ed5 Nd5 10.Nc4) 5...dc4 6.Nc4 Qb4 7.Qd2 Qd2 8.Kd2 Nf6 9.Nf3 Nc6 10.Nfe5; D) 4...Nc6 5.a3 (5.c4 Nb4 6.Qb3 e6 7.Ngf3 Nf6 8.g3 dc4 9.Nc4 b5 10.Nce5; 5.Ngf3 Nb4 6.g3 Nf6 7.Bg2 e6 8.0–0 Be7 9.Rb1 a5 10.e4) 5...Nf6 6.Ngf3 Bg4 7.c4 e6 8.h3 Bf3 9.Nf3 Bd6 10.c5.

4.Nf3 A) 4...Nc6 5.a3 Nf6 6.g3 Bg4 7.Bg2 e6 8.Nbd2 Bd6 9.0–0 0–0 10.c4; B) 4...e6 5.a3 (5.Nc3 Bb4 6.a3 Be7 7.g3 Nc6 8.Bg2 h4 9.gh4 Nf6 10.0–0; 5.Nbd2 Nf6 6.a3 c5 7.bc5 Bc5 8.Nb3 Be7 9.g3 Nc6 10.Bg2) 5...Nf6 6.Nbd2 c5 7.bc5 Bc5 8.Nb3 Be7 9.g3 Nc6 10.Bg2; C) 4...Nf6 5.a3 (5.Nbd2 Nc6 6.a3 Bf5 7.Nb3 Qd6 8.g3 e5 9.Bg2 Nd7 10.Qd2; 5.g3 Nc6 6.a3 Bg4 7.Bg2 e6 8.0–0 Be7 9.Nbd2 0–0 10.Nb3; 5.Qd2 Nc6 6.a3 g6 7.e3 Bh6 8.Be2 0–0 9.0–0 Qd6 10.Qc3) 5...Nc6 6.Nbd2 Bf5 7.Nb3 Qd6 8.Nbd4 Nd4 9.Bd4 Nd7 10.Nh4.

3.d3 h6

4.a3 A) 4...Nf6 5.Nf3 (5.Nd2 Nc6 6.g3 g6 7.Ngf3 Bg7 8.Bg2 0–0 9.0–0 Ng4 10.Bg7) 5...Nc6 6.g3 Bg4 7.Nbd2 e6 8.Bg2 Bd6 9.c4 0–0 10.0–0; B) 4...Bf5 5.Nd2 (5.g3 Nc6 6.Nf3 Nf6 7.Bg2 e6 8.Nbd2 Be7 9.0–0 0–0 10.Nb3; 5.Nf3 Nc6 6.g3 Nf6 7.Bg2 e6 8.Nbd2 Be7 9.0–0 0–0 10.Nb3) 5...Nf6 6.g3 Nc6 7.Bg2 e6 8.Ngf3 Bd6 9.0–0 0–0 10.c4; C) 4...h5 5.Nf3 (5.Nd2 Nc6 6.Ngf3 Nf6 7.e4 Be6 8.Be2 de4 9.Ne4 Bf5 10.Nfg5; 5.e4 de4 6.de4 Qd1 7.Kd1 Nf6 8.Nd2 Nc6 9.Ngf3 h4 10.h3; 5.Nc3 Nc6 6.Nf3 Nf6 7.g3 d4 8.Ne4 e5 9.Bg2 Bd6 10.0–0; 5.Qd2 Nf6 6.Nf3 Nc6 7.Nc3 e5 8.g3 d4 9.Ne4 Bf5 10.Nf6) 5...Nc6 6.Nbd2 Nf6 7.e4 d4 8.c3 dc3 9.Bc3 Bd7 10.Be2; D) 4...Bg4 5.h3 (5.Nd2 Nf6 6.h3 Bh5 7.Ngf3 Nc6 8.c4 e6 9.g4 Bg6 10.b5; 5.Nf3 Nc6 6.Nbd2 Nf6 7.h3 Bf5 8.c4 e6 9.Qa4 dc4 10.e4; 5.Nc3 Nf6 6.h3 Bd7 7.Nf3 Nc6 8.e4 d4 9.Nd5 e5 10.Be2) 5...Bf5 6.Nf3 Nc6 7.Nd4 Bd7 8.Nd2 Nf6 9.c4 e6 10.cd5; E) 4...Nc6 5.Nf3 (5.Nd2 Nf6 6.Ngf3 Bf5 7.g3 e6 8.Bg2 Be7 9.0–0 0–0 10.Nb3; 5.g3 Nf6 6.Nf3 e6 7.Nbd2 Bd6 8.Bg2 0–0 9.0–0 e5 10.c4) 5...Nf6 6.Nbd2 Bf5 7.c4 e6 8.Qa4 dc4 9.e4 Bg6 10.Ne5.

4.Nc3 A) 4...Nf6 5.a3 (5.Nf3 Nc6 6.a3 e5 7.g3 Bd6 8.Bg2 Be6 9.0–0 0–0 10.e3; 5.g3 Nc6 6.Nf3 e5 7.a3 Bd6 8.Bg2 Be6 9.0–0 0–0 10.e3; 5.Na4 Nc6 6.a3 e5 7.Nf3 Bd6 8.g3 0–0 9.Bg2 Bf5 10.0–0; 5.e4 Nc6 6.Nf3 d4 7.Na4 e5 8.a3 b5 9.Nc5 Bc5 10.bc5) 5...e5 6.Nf3 Nc6 7.g3 Bd6 8.Bg2 Be6 9.0–0 0–0 10.e3; B) 4...Qd6 5.a3 (5.e3 Qb4 6.Rb1 Nf6 7.Be2 Nc6 8.Nf3 e6 9.0–0 Qa5 10.Nd4) 5...Nf6 6.Nf3 Nc6 7.e3 e6 8.d4 Be7 9.Bd3 0–0 10.0–0; C) 4...e5 5.Nf3 Nc6 6.b5 ab5 7.Nb5 Bb4 8.c3 Be7 9.g3 Nf6 10.Bg2; D) 4...d4 5.Ne4 (5.Na4 Nc6 6.Nf3 Nf6 7.c3 dc3 8.Bc3 Nd5 9.Bb2 e5 10.a3) 5...Nf6 6.c3 Nc6 7.cd4 e5 8.a3 ed4 9.Nf6 Qf6 10.Nf3; E) 4...Nc6 5.a3 (5.Nf3 Nf6 6.g3 e5 7.a3 Bd6 8.Bg2 0–0 9.0–0 Be6 10.e3; 5.g3 Nf6 6.Nf3 e5 7.a3 Bd6 8.Bg2 0–0 9.0–0 Be6 10.e3 ; 5.b5 ab5 6.Nb5 Nf6 7.Nf3 e6 8.g3 Bb4 9.c3 Bc5 10.Bg2; 5.Qd2 Nf6 6.Nf3 e5 7.a3 Bd6 8.g3 0–0 9.Bg2 Be6 10.0–0) 5...Nf6 6.Nf3 e5 7.g3 d4 8.Ne4 Be7 9.Bg2 Ne4 10.de4.

4.Nd2 A) 4...Nf6 5.a3 (5.Ngf3 Nc6 6.a3 Bf5 7.g3 e6 8.Bg2 Be7 9.0–0 0–0 10.c4) 5...Nc6 6.Ngf3 Bf5 7.g3 e6 8.Bg2 Bd6 9.0–0 0–0 10.c4; B) 4...Qd6 5.Ngf3 (5.a3 Nf6 6.Ngf3 Nc6 7.c4 Bg4 8.h3 Bd7 9.cd5 Nd5 10.Nc4; 5.c4 Qb4 6.Rb1 Qa5 7.cd5 Qd5 8.e4 Qa5 9.Qc2 c5 10.d4) 5...Qb4 6.Be5 Nc6 7.c3 Qa5 8.Nb3 Qb6 9.Bf4 Nf6 10.Be3; C) 4...Nc6 5.a3 Nf6 6.Ngf3 Bf5 7.c4 e6 8.g3 Be7 9.Bg2 0–0 10.0–0; D) 4...e6 5.Ngf3 (5.a3 Nf6 6.Ngf3 Be7 7.g3 Nc6 8.Bg2 0–0 9.0–0 b5 10.e4; 5.e4 Nf6 6.e5 Nfd7 7.a3 Be7 8.Qg4 0–0 9.Ngf3 Nb6 10.Be2; 5.g3 Nf6 6.a3 c5 7.bc5 Bc5 8.Nb3 Bd6 9.Nf3 Nc6 10.Bg2) 5...Nf6 6.a3 c5 7.bc5 Bc5 8.Nb3 Be7 9.g3 Nc6 10.Bg2.

4.Nf3 A) 4...Nc6 5.a3 (5.g3 Nf6 6.a3 Bg4 7.Nbd2 e6 8.Bg2 Be7 9.0–0 0–0 10.Qe1; 5.Nbd2 Nb4 6.g3 Nf6 7.Bg2 e6 8.0–0 Be7 9.Rb1 0–0 10.Bf6; 5.Ne5 Nf6 6.Nc6 bc6 7.Nd2 e6 8.a3 a5 9.c3 c5 10.b5) 5...Nf6 6.Nbd2 Bf5 7.c4 e6 8.Qa4 dc4 9.e4 Bg6 10.Ne5; B) 4...e6 5.Nc3 (5.a3 Nf6 6.Nbd2 Nc6 7.e4 Be7 8.e5 Nd7 9.d4 b5 10.Bd3; 5.Nbd2 Nf6 6.a3 c5 7.bc5 Bc5 8.Nb3 Be7 9.g3 Nc6 10.Bg2) 5...Nc6 6.a3 Bd6 7.g3 Nf6 8.Bg2 e5 9.0–0 0–0 10.Re1; C) 4...Nf6 5.g3 (5.Nbd2 Nc6 6.a3 Bf5 7.c4 e6 8.Qa4 dc4 9.e4 Bg6 10.Ne5; 5.a3 Nc6 6.g3 Bf5 7.Bg2 e6 8.Nbd2 Be7 9.0–0 0–0 10.Nb3) 5...Nc6 6.a3 Bf5 7.Bg2 e6 8.Nh4 Bh7 9.0–0 Be7 10.Nd2.

4.h3 A) 4...Nf6 5.Nd2 (5.Nf3 e6 6.a3 Nc6 7.Nc3 Bd6 8.e3 0–0 9.Be2 e5 10.0–0; 5.a3 e6 6.Nf3 c5 7.e3 cb4 8.Be2 Nc6 9.0–0 Bd7 10.ab4) 5...Nc6 6.a3 g6 7.Ngf3 Bg7 8.Nd4 Qd6 9.Nc6 Qc6 10.Nf3; B) 4...Qd6 5.Nf3 (5.a3 Nf6 6.Nd2 Nc6 7.Ngf3 e5 8.c4 d4 9.c5 Qe6 10.Nc4; 5.Ba3 g6 6.Nf3 Bg7 7.c3 Nf6 8.e3 0–0 9.Be2 Qb6 10.Nbd2; 5.c3 Nf6 6.Nf3 Nc6 7.a4 g6 8.Nbd2 Bg7 9.b5 Na5 10.Ba3) 5...Nc6 6.a3 Nf6 7.Nbd2 e5 8.c4 Bd7 9.cd5 Qd5 10.e4; C) 4...e6 5.Nd2 (5.a3 Nf6 6.Nd2 c5 7.bc5 Bc5 8.e3 Nc6 9.Ngf3 0–0 10.Be2) 5...Nf6 6.a3 c5 7.Ngf3 cb4 8.ab4 Bb4 9.e3 Nc6 10.Be2; D) 4...Bf5 5.g4 (5.Nf3 Nc6 6.Nd4 Nd4 7.Bd4 Nf6 8.Nd2 e6 9.g4 Bh7 10.Rb1; 5.Nd2 Nf6 6.c4 e6 7.cd5 ed5 8.Ngf3 Bb4 9.a3 Ba5 10.Qa4; 5.a3 Nc6 6.Nd2 Nf6 7.Ngf3 e6 8.c4 Bd6 9.cd5 ed5 10.e4; 5.e4 de4 6.Nd2 ed3 7.Qf3 Be6 8.Bd3 Nf6 9.Ne2 Bd5 10.Ne4) 5...Bg6 6.Nf3 Nc6 7.a3 Nf6 8.Nc3 e6 9.Bg2 Be7 10.0–0; E) 4...Nc6 5.a3 (5.Nf3 Nb4 6.c4 Nf6 7.Nbd2 Nc6 8.Qa4 e6 9.Rc1 Bd7 10.Qb3) 5...Nf6 6.Nf3 e6 7.Nc3 Bd6 8.e3 0–0 9.Be2 e5 10.0–0.

3.d4 Nc6

4.a3 Bf5 5.Nf3 (5.e3 Nf6=+) 5...Nf6 (5...e6 6.e3=) 6.e3 e6 7.Nbd2 (7.Bd3 Bd3 8.Qd3 Bd6=+) 7...Be7 (7...Bd6 8.c4=+) 8.c4 (8.Be2 Bd6=) 8...0–0 9.c5 Qd7 (9...Ne4 10.Be2=) 10.Be2 Rfe8 (10...b5 11.0–0=) 11.0–0 (11.Nh4 Be4=) 11...Bd8 (11...Ng4 12.Qa4=) 12.Ne5 (12.Nh4 e5+=) 12...Ne5= 13.de5 Ne4 14.Ne4 Be4 (14...de4?? 15.Qd7 Re7 16.Qd4+–) 15.Bf3 Bf3 16.Qf3 Bg5 17.Rfd1 c6 18.g3 Qe7 19.h4 Bh6 20.Rd4 Rad8 21.Rad1 g6 22.e4 Bg7 23.R4d3 de4 24.Qe4 Opening the d–file gets White a lot of play 24...Kh8 25.f4 Rd3 26.Qd3 f5 27.Qd7+/– h6 28.Kg2 Kh7 29.Kf3 h5 30.Qe7 Re7 31.Rd6 Kh6 32.Rd3 Bf8 33.Rd8 Bg7 34.Ke2 Rc7 35.Ba1 Re7+/– 36.Bb2 Rc7+– 37.Ba1?? Re7= 38.Bb2 (better is 38.Bd4+/–) ½–½. M8IN3 – Talman, Live Game Caissa's Web, 2005.

4.a3 Nf6 5.e3 Bf5 6.Nf3 h6 (6...e6 7.Bd3+=) 7.c4 e6 8.Nc3 (8.Bd3 dc4 9.Bf5 ef5=) 8...Ne4 (8...dc4 9.Bc4 Bd6 10.0–0=) 9.Bd3 Nc3 10.Bc3 Bd3 11.Qd3 Be7 (11...dc4 12.Qc4 Bd6 13.Rd1=) 12.0–0 0–0 (12...dc4 13.Qc4 Qd5 14.Qd3+=) 13.Rac1 (13.c5 Qd7+=) 13...dc4= 14.Qc4 Bd6 15.Rfd1 Qd7 (15...Qf6 16.d5 ed5 17.Qd5+= (worse is 17.Bf6 dc4 18.Bd4 a5+=; 17.Rd5?! Qe6+=)) 16.d5 Na7 (16...ed5 17.Rd5 Qe6 18.Nd4+=) 17.Bb2 (17.Qg4 f5 18.Qg6 ed5 19.Rd5 Qf7 20.Qf7 Rf7+/–) 17...b5 (17...ed5 18.Qd4 f6 19.Qd5 Qf7 20.Qb7 a5 21.ba5 Rab8 22.Qa7 Rb2+–) 18.Qg4+/– Threatening mate... how? 18...f5 19.Qd4 (19.Qg6 ed5 20.Rd5 Qf7 21.Qf7 Rf7+/– (21...Kf7? 22.Rf5 Ke7 23.Rf8 Kf8 24.Bd4+–)) 19...ed5 20.Qd5 Qf7 21.Qb7 Qb3? (21...Rfd8 22.Bd4 Rdb8 23.Qa6+/–) 22.Rd2 (22.Rd6 Qb2 A) 23.Qc7? Rfc8 24.Qc8 Rc8 (24...Nc8?! 25.Rdc6 Nd6 26.R6c3–+) 25.Rc8 Nc8 26.Rd8 Kf7–+; B) 23.Qd5 Kh7 24.Rc7+/–) 22...Rfb8 (22...Qe6 23.Bd4 (23.Qa6?? Bh2 24.Kh2 Qa6–+) 23...Rfb8 24.Qb8 Rb8 25.Ba7–/+) 23.Qa6 Rb6 24.Qa5 Qf7 (24...Qe6 25.Bd4 Ra6 26.Qa6 Bh2 27.Kh2 Qa6 28.Rc7 Qa3 29.Rg7 Kf8 30.Ne5+/–) 25.Be5+– Be5 26.Ne5 Qb3? (26...Qe7 27.Nc6 Rc6 28.Rc6 Qe4+–) 27.Rd7+– Qb2 (27...Rb7 28.Rf7+– (28.Rdc7?! Rc7 29.Qc7 Rc8 30.Qc8 Nc8 31.Rc8 Kh7=)) 28.Nd3 (28.Rg7 Kg7 29.Nd3 Qc1 30.Nc1 Rd8–+) 28...Qf6 29.Rcc7 (29.Rcc7 Rbb8 30.Rg7 Qg7 31.Rg7 Kg7 32.Qc7 Kg8 33.Ne5+–; 29.Rdc7?! Ra6 30.Ra7 R6a7 31.Qb5 Ra3 32.Qd5 Qf7+=) 1–0. Wall,Bill – LevR, internet, 2003.

4.a3 Nf6 5.f3 Bf5 (5...e6 6.Nd2=+) 6.e3 (6.g4 Bg6=+) 6...h5 (6...e6 7.g4 Ng4 8.fg4 Qh4 9.Kd2–+) 7.c4 dc4 (7...e6!?=+) 8.Bc4 (8.e4 Ne4 9.fe4 Be4+/–) 8...e6 (8...b5 9.Bb3 e6 10.e4+=) 9.e4 Bg6 10.Ne2 b5 (10...Qd7 11.Nf4+=) 11.Bd3 Be7 (11...Qd7 12.Nf4+/–) 12.e5 (12.Qc2 Qd6+=) 12...Nd5 (better is 12...Bd3 13.ef6 Be2 14.fe7 Bd1 15.ed8Q Rd8 16.Kd1 Nd4 17.Bd4 Rd4 18.Ke2 Kd7+/–) 13.Qd2?? (better is 13.Bg6 fg6 14.Qc2+/–) 13...Bg5–/+ 14.f4 Bh4 15.g3= Be7 16.Bg6+/– fg6 17.0–0 h4 18.Rf3 hg3 19.Rg3 Kf7?? 20.Qd3?? Rh6+= 21.Nd2 Qh8 22.h3 Qh7 23.Kg2 Rh4 24.Rh1 Qh6 25.Nf3 Nf4? 26.Nf4+– Rf4 27.Bc1 g5 28.Bf4 gf4 29.Rg4 g5? 30.h4 Rh8 31.h5 Rd8 32.Qe4 Rd5+/– 33.Kf2 a5 34.ba5 Na5 35.Rgg1?? Nc4= 36.Rc1 c6 37.a4 g4 (38.Nh4 Ba3=). rodnel – valerypavlovich (2120), net–chess.com, 2006.

3.d4 Nf6

4.a3 Nc6 A) 5.e3 Bf5 (5...Qd6 6.Nf3 g6 7.Bd3 Bd7 8.Nc3 Bg7 9.b5 Na5 10.ba6 ba6; 5...g6 6.Nf3 Bg7 7.Bd3 0–0 8.Nbd2 e5 9.Ne5 Ne5 10.de5 Ng4; 5...g5 6.Bd3 Bg7 7.Nd2 Qd6 8.Ngf3 g4 9.Nh4 0–0 10.Nf5 Bf5; 5...Bg4 6.Nf3 e6 7.Nbd2 Bd6 8.h3 Bf5 9.Bd3 0–0 10.0–0 Qd7) 6.Nf3 e6 7.Nc3 Bd6 8.Bd3 0–0 9.0–0 Ne4 10.Be4 Be4; B) 5.Nc3 g6 (5...Bf5 6.Nf3 e6 7.e3 Bd6 8.Bd3 0–0 9.0–0 Ne4 10.Be4 Be4; 5...g5 6.e3 Bg7 7.h3 Bf5 8.Nf3 h6 9.Bd3 Qd7 10.Ne5 Qe6; 5...Bg4 6.Nf3 e6 7.h3 Bf5 8.e3 Bd6 9.Nh4 Be4 10.Bd3 0–0; 5...Qd6 6.Nf3 g6 7.e3 Bg7 8.Bd3 0–0 9.0–0 Re8 10.Qe2 e5) 6.e3 Bg7 7.Nf3 0–0 8.h3 Bf5 9.Bd3 Qd7 10.0–0 Rad8; C) 5.Nd2 g6 6.Ngf3 Bh6 7.e3 0–0 8.Bd3 Be6 9.0–0 Qd7 10.h3 Rfd8; D) 5.Nf3 Qd6 (5...g6 6.e3 Bg7 7.Bd3 0–0 8.Nbd2 e5 9.Ne5 Ne5 10.de5 Ng4; 5...Bf5 6.Nc3 e6 7.e3 Bd6 8.Bd3 0–0 9.0–0 Ne4 10.Be4 Be4; 5...Bg4 6.e3 e6 7.Bd3 Bd6 8.Nbd2 0–0 9.c4 Bf5 10.Bf5 ef5; 5...Be6 6.Nc3 g6 7.e3 Bg7 8.h3 0–0 9.Bd3 Qd7 10.0–0 Bf5) 6.Nc3 g6 7.e3 Bg7 8.Bd3 0–0 9.0–0 Re8 10.Rb1 e5.

4.a3 Nbd7 A) 5.e3 a5 (5...e6 6.Nf3 a5 7.ba5 c5 8.Nc3 Qa5 9.Qd2 c4 10.Be2 Bd6; 5...h6 6.Nf3 e6 7.Bd3 a5 8.c3 Bd6 9.Nbd2 b6 10.e4 Nh5) 6.Nc3 e6 7.ba5 Bd6 8.Nf3 0–0 9.Bd3 Ra5 10.0–0 c6; B) 5.Nd2 Nb6 (5...a5 6.Ngf3 e6 7.Bc3 Bd6 8.e3 0–0 9.ba5 c5 10.Bd3 Qc7; 5...g6 6.Ngf3 Nb6 7.e3 Na4 8.Qc1 Bg7 9.Bd3 Qd6 10.0–0 0–0; 5...e6 6.Ngf3 a5 7.Bc3 Bd6 8.e3 0–0 9.ba5 c5 10.Bd3 Qc7) 6.Ngf3 Na4 7.Qc1 Bf5 8.e3 e6 9.Bd3 Bd6 10.0–0 0–0; C) 5.Nf3 Nb6 (5...e6 6.e3 a5 7.ba5 c6 8.a6 ba6 9.Nbd2 Bd6 10.Rb1 0–0; 5...a5 6.Nc3 e6 7.ba5 Ra5 8.e3 Bd6 9.Nb5 Be7 10.Bd3 c6) 6.Nbd2 Na4 7.Qc1 Nb2 8.Qb2 g6 9.e3 Bg7 10.Bd3 0–0; D) 5.Nc3 e6 (5...a5 6.Nf3 e6 7.ba5 c5 8.Qd2 Ra5 9.e3 c4 10.Be2 Bd6; 5...b6 6.Nf3 e6 7.e3 a5 8.ba5 Ra5 9.Ne5 Ne5 10.de5 Nd7) 6.e3 a5 7.ba5 c6 8.a6 Bd6 9.Bd3 Qa5 10.Nf3 0–0.

4.a3 e6 A) 5.Nd2 Bd6 (5...Nc6 6.Ngf3 Bd6 7.e3 0–0 8.c4 Qd7 9.c5 Be7 10.Bd3 h6; 5...Nbd7 6.e3 a5 7.b5 Bd6 8.Ngf3 0–0 9.Bd3 c5 10.bc6 bc6; 5...a5 6.b5 Bd7 7.e3 c6 8.c4 dc4 9.Nc4 cb5 10.Ne5 Nc6; 5...Be7 6.Ngf3 Nbd7 7.e3 b6 8.Bd3 a5 9.0–0 Bb7 10.b5 0–0; 5...Bd7 6.e3 a5 7.b5 c6 8.c4 dc4 9.Bc4 cb5 10.Bd3 Bd6) 6.Ngf3 Nbd7 7.e3 0–0 8.c4 Ne4 9.c5 Be7 10.Bd3 Ndf6; B) 5.e3 Nbd7 (5...Bd7 6.Nf3 Bd6 7.Bd3 Nc6 8.Nbd2 b5 9.0–0 0–0 10.Ne5 h6; 5...g6 6.Nf3 a5 7.b5 Nbd7 8.Bd3 Bd6 9.0–0 0–0 10.Nc3 e5; 5...a5 6.b5 Bd6 7.Nf3 Nbd7 8.Bd3 0–0 9.Nbd2 c5 10.bc6 bc6; 5...Nc6 6.Nf3 Bd7 7.Nbd2 g6 8.Bd3 Bg7 9.0–0 0–0 10.c4 Qe7; 5...Bd6 6.Nf3 0–0 7.Bd3 Nc6 8.0–0 Re8 9.Nbd2 e5 10.de5 Ne5) 6.Nc3 a5 7.Nf3 ab4 8.ab4 Ra1 9.Qa1 Bb4 10.Bd3 0–0; C) 5.g3 a5 (5...Bd6 6.Nf3 a5 7.b5 Nbd7 8.c4 0–0 9.c5 Be7 10.Nc3 Ne4; 5...Be7 6.Nf3 a5 7.b5 Nbd7 8.Qd3 Nb6 9.Nbd2 Na4 10.Bc1 0–0; 5...Nbd7 6.Nf3 a5 7.ba5 c6 8.Nc3 Qa5 9.Qd3 Ra6 10.Nd2 c5) 6.b5 Nbd7 7.Nf3 Nb6 8.e3 Na4 9.Bc1 Ne4 10.Be2 Be7; D) 5.Nc3 a5 (5...Nbd7 6.Nf3 a5 7.b5 Bd6 8.e3 0–0 9.Be2 b6 10.0–0 Bb7; 5...Bd6 6.Nf3 0–0 7.e3 Nc6 8.Be2 Qe7 9.0–0 b6 10.h3 Bb7) 6.b5 Nbd7 7.Nf3 Bd6 8.e3 0–0 9.Be2 b6 10.0–0 Bb7; E) 5.Nf3 Bd6 (5...Nc6 6.Nc3 Bd6 7.g3 e5 8.de5 Ne5 9.Ne5 Be5 10.f4 Bd6; 5...a5 6.b5 Nbd7 7.e3 Bd6 8.Bd3 0–0 9.0–0 Re8 10.Nc3 e5; 5...Be7 6.Nc3 0–0 7.e3 Qd6 8.Bd3 Nc6 9.0–0 h6 10.Qd2 b6; 5...Bd7 6.Nc3 Nc6 7.g3 Bd6 8.Bg2 0–0 9.0–0 h6 10.Qd3 Qe7; 5...Nbd7 6.Nc3 a5 7.ba5 Ra5 8.g3 Bd6 9.Bg2 Nb6 10.Nd2 0–0) 6.Nc3 a5 7.b5 0–0 8.e3 Nbd7 9.Bd3 e5 10.de5 Ne5.

4.a3 Bg4 A) 5.Nc3 e6 (5...Nc6 6.Nf3 e6 7.h3 Bf5 8.e3 Bd6 9.Nh4 Be4 10.Bd3 0–0; 5...a5 6.h3 ab4 7.ab4 Ra1 8.Qa1 Bd7 9.b5 e6 10.Nf3 Bb4; 5...Nbd7 6.h3 Bf5 7.Nf3 e6 8.e3 a5 9.ba5 Bd6 10.a6 ba6; 5...Qd6 6.Nf3 Nbd7 7.h3 Bf5 8.e3 e6 9.Bd3 Be7 10.0–0 0–0; 5...Qd7 6.Nf3 Nc6 7.Ne5 Ne5 8.de5 d4 9.Nb1 Nd5 10.Qd4 0–0–0) 6.h3 Bf5 7.Nf3 Nc6 8.e3 Bd6 9.Bd3 0–0 10.Bf5 ef5; B) 5.h3 Bf5 (5...Bh5 6.Nf3 e6 7.Nbd2 Nc6 8.e3 Bd6 9.Be2 0–0 10.0–0 Qd7; 5...Bd7 6.Nf3 a5 7.Nc3 ab4 8.ab4 Na6 9.b5 Nb4 10.Ra8 Qa8) 6.Nf3 Nc6 7.Nc3 e6 8.e3 Bd6 9.Nh4 Be4 10.Bd3 0–0; C) 5.Nd2 Qd6 (5...Nc6 6.Ngf3 e6 7.h3 Bf5 8.e3 Bd6 9.Bd3 0–0 10.0–0 Qd7; 5...e6 6.h3 Bf5 7.Ngf3 Nc6 8.e3 Bd6 9.Bd3 0–0 10.0–0 Qd7; 5...h5 6.Ngf3 a5 7.h3 Bf5 8.b5 Nbd7 9.c4 e6 10.e3 Bd6; 5...a5 6.h3 Bd7 7.Ngf3 e6 8.c3 Bd6 9.e3 0–0 10.Bd3 Nc6; 5...Qd7 6.Ngf3 Nc6 7.Ne5 Ne5 8.de5 Ne4 9.Ne4 de4 10.f3 Qd1) 6.Ngf3 Nbd7 7.c4 g6 8.Ne5 c6 9.cd5 cd5 10.Ng4 Ng4; D) 5.Nf3 Nc6 (5...Qd6 6.Nc3 Nc6 7.e3 g6 8.h3 Be6 9.Bd3 Bh6 10.0–0 0–0; 5...e6 6.Nc3 Bd6 7.h3 Bf3 8.ef3 Nc6 9.Be2 0–0 10.0–0 Nd7; 5...g6 6.h3 Be6 7.Nc3 Nc6 8.e3 Bh6 9.Bd3 0–0 10.0–0 Qd6; 5...a5 6.b5 Nbd7 7.Nbd2 Nb6 8.c3 g6 9.e3 Bf5 10.Ne5 Nbd7; 5...h5 6.Nc3 e6 7.e3 Nc6 8.h3 Bf5 9.Bd3 Be7 10.0–0 0–0) 6.Nc3 e6 7.e3 Bd6 8.Bd3 0–0 9.h3 Bf3 10.Qf3 e5.

4.Nc3 Nc6 5.a3 g6 (5...Bg4 6.h3 Bf5 7.Nf3 e6 8.e3 Bd6 9.Nh4 Be4 10.Bd3 0–0; 5...Bf5 6.Nf3 e6 7.Nh4 Bg4 8.h3 Bh5 9.Qd3 Bd6 10.g3 e5; 5...e6 6.Nf3 Bd6 7.g3 0–0 8.Bg2 Qd7 9.0–0 b5 10.Qd3 Bb7) 6.Nf3 Bg7 7.e3 0–0 8.h3 Re8 9.Bd3 e5 10.de5 Ne5.

4.Nc3 e6 5.a3 a5 (5...Bd6 6.Nf3 a5 7.b5 Nbd7 8.e3 0–0 9.Be2 b6 10.0–0 Bb7) 6.b5 Nbd7 7.Nf3 Bd6 8.e3 0–0 9.Bd3 e5 10.de5 Ne5.

4.Nc3 Bf5 A) 5.a3 g6 (5...e6 6.e3 a5 7.b5 Nbd7 8.Bd3 Bd6 9.Nf3 0–0 10.0–0 Ne4; 5...Nc6 6.Nf3 e6 7.Nh4 Bg4 8.h3 Bh5 9.g4 Ne4 10.Ne4 Qh4; 5...Qd7 6.Nf3 Nc6 7.e3 e6 8.Nh4 Bg6 9.Ng6 hg6 10.Be2 Bd6; 5...a5 6.Nf3 ab4 7.ab4 Na6 8.Nh4 Bd7 9.b5 Nb4 10.Ra8 Qa8; 5...h5 6.Nf3 Nc6 7.e3 e6 8.Bd3 Bd6 9.0–0 0–0 10.h3 Ne4) 6.Nf3 Nc6 7.e3 Bg7 8.Bd3 Qc8 9.0–0 0–0 10.Ne5 Qe6; B) 5.e3 e6 (5...Nbd7 6.Bd3 e6 7.a3 Bd6 8.Nf3 0–0 9.0–0 c6 10.h3 a5; 5...Nc6 6.a3 e6 7.Nf3 Bd6 8.Bd3 Ne4 9.0–0 Qf6 10.Rb1 0–0) 6.a3 Bd6 7.Nf3 Nc6 8.Bd3 Ne4 9.0–0 Qf6 10.g3 Nc3; C) 5.Nf3 Nc6 (5...e6 6.a3 Nc6 7.e3 Bd6 8.Bd3 Ne4 9.0–0 Qf6 10.Qe2 0–0; 5...Qd7 6.e3 Nc6 7.Bd3 e6 8.Ne5 Qd6 9.Nc6 Bd3 10.cd3 Qc6; 5...g6 6.e3 Nc6 7.a3 Bg7 8.Bd3 Qd7 9.0–0 Bd3 10.cd3 0–0; 5...Qd6 6.a3 Nc6 7.e3 e6 8.Bd3 Be7 9.0–0 0–0 10.Bf5 ef5; 5...h5 6.e3 e6 7.a3 Nc6 8.Bd3 Bd6 9.0–0 Qd7 10.h3 0–0) 6.a3 e6 7.e3 Bd6 8.Bd3 0–0 9.0–0 Qd7 10.h3 h6.

4.Nc3 g6 A) 5.e3 Nc6 (5...Bg7 6.Nf3 0–0 7.a3 Nc6 8.h3 Re8 9.Be2 Qd6 10.0–0 e5; 5...Bh6 6.Nf3 Nc6 7.a3 0–0 8.h3 Re8 9.Be2 Bf5 10.0–0 Qd6; 5...Bf5 6.Nf3 e6 7.Ne5 Nc6 8.g4 Ne5 9.gf5 Nc6 10.fe6 fe6; 5...Qd6 6.a3 Bg7 7.Nf3 0–0 8.Bd3 Nc6 9.0–0 Re8 10.Re1 e5; 5...Bg4 6.Nf3 Nc6 7.a3 Bh6 8.h3 Bf3 9.Qf3 0–0 10.Qg3 Qd6) 6.a3 Bg7 7.Nf3 0–0 8.h3 Re8 9.Be2 Bf5 10.0–0 Qd6; B) 5.Nf3 Bg7 (5...Nc6 6.a3 Bg7 7.e3 0–0 8.h3 Re8 9.Bd3 e5 10.de5 Ne5; 5...Bh6 6.e3 Nc6 7.a3 0–0 8.h3 Re8 9.Be2 Bf5 10.0–0 Qd6; 5...Qd6 6.a3 Bg7 7.e3 0–0 8.Bd3 Re8 9.0–0 Nc6 10.Re1 e5; 5...e6 6.a3 Nc6 7.g3 Bh6 8.Bg2 0–0 9.0–0 Qd6 10.Qd3 Bd7; 5...Bf5 6.a3 Nc6 7.e3 Bh6 8.Bd3 Qd7 9.0–0 0–0 10.Ne5 Qe6) 6.a3 Nc6 7.e3 0–0 8.h3 Re8 9.Bd3 Qd6 10.0–0 e5; C) 5.a3 Nc6 (5...Bg7 6.Nf3 0–0 7.e3 Nc6 8.h3 Ne4 9.Ne4 de4 10.Nd2 e5; 5...Bh6 6.Nf3 Nc6 7.e3 0–0 8.h3 Re8 9.Be2 Bf5 10.0–0 Qd6; 5...Qd6 6.Nf3 Bg7 7.e3 0–0 8.Bd3 Re8 9.h3 Nc6 10.0–0 e5; 5...Bd7 6.Nf3 Bg7 7.e3 0–0 8.Bd3 Nc6 9.0–0 Be6 10.h3 Qd7; 5...Bf5 6.e3 Nc6 7.Nf3 Bh6 8.Bd3 Qd7 9.0–0 0–0 10.Ne5 Qe6) 6.Nf3 Bh6 7.e3 0–0 8.h3 Re8 9.Be2 Qd6 10.0–0 Bf5.

4.Nf3 Nc6 A) 5.c3 g6 (5...Qd6 6.Nbd2 Bf5 7.e3 g6 8.Nh4 Bd7 9.Nb3 b6 10.Bd3 Bg7; 5...Bf5 6.Nbd2 g6 7.Nh4 Be6 8.e3 Qd6 9.Bd3 Bg7 10.0–0 0–0) 6.Nbd2 Bg7 7.e3 Bf5 8.Nh4 Bg4 9.f3 Be6 10.Bd3 Qd7; B) 5.Nc3 Nb4 6.a3 Nc6 7.e3 g6 8.Bd3 Bg7 9.0–0 0–0 10.h3 Qd6; C) 5.e3 Nb4 (5...Bg4 6.a3 e6 7.Nc3 Bd6 8.Bd3 0–0 9.h3 Bf3 10.Qf3 e5; 5...Bf5 6.a3 e6 7.Nc3 Bd6 8.Bd3 0–0 9.0–0 Ne4 10.Be4 de4; 5...e6 6.a3 Bd6 7.c4 dc4 8.Bc4 0–0 9.Nc3 e5 10.d5 Ne7) 6.c3 Nc6 7.Bd3 g6 8.Nbd2 Bf5 9.Qc2 Bd3 10.Qd3 Bg7; D) 5.Nbd2 Nb4 (5...g6 6.e3 Nb4 7.c3 Nc6 8.Qb3 b6 9.c4 Bh6 10.Ne5 Na5) 6.c4 g6 7.Ne5 Nc6 8.cd5 Qd5 9.e4 Ne4 10.Bc4 Qa5; E) 5.a3+= g6 (5...Bf5 6.Nc3 e6 7.Nh4 Bg4 8.h3 Bh5 9.g4 Ne4 10.gh5 Qh4; 5...Qd6 6.e3 g6 7.Bd3 Bg7 8.0–0 0–0 9.Nbd2 Be6 10.h3 Qd7) 6.Nc3 Bg7 7.e3 Bf5 8.Bd3 Qd7 9.0–0 0–0 10.Ne5 Qe6.

4.Nf3 Qd6 A) 5.c3 g6 (5...Nc6 6.Nbd2 g6 7.e3 Bf5 8.Qa4 Rb8 9.Be2 Bg7 10.0–0 0–0; 5...Bf5 6.Nbd2 g6 7.Nh4 Bd7 8.Nb3 b6 9.g3 Nc6 10.Bg2 Bg7; 5...Bd7 6.Nbd2 Nc6 7.e3 g6 8.Bd3 Bg7 9.0–0 0–0 10.e4 Ne4; 5...Bg4 6.Nbd2 Nc6 7.e3 0–0–0 8.Be2 h6 9.a4 e5 10.b5 e4) 6.Nbd2 Bg7 7.e3 Bf5 8.Qa4 Nbd7 9.c4 0–0 10.c5 Qe6; B) 5.a3 g6 (5...a5 6.b5 Bg4 7.Nc3 Nbd7 8.h3 Be6 9.e3 g6 10.Ng5 Bh6; 5...Nc6 6.e3 g5 7.h3 Bg7 8.c4 Bf5 9.c5 Qd7 10.Ng5 Bh6) 6.e3 Bg7 7.Bd3 0–0 8.0–0 Bd7 9.Nbd2 Nc6 10.h3 b5.

4.Nf3 e6 5.a3= (5.c3 Nc6 (5...Bd6 6.Nbd2 0–0 7.e3 Nc6 8.Be2 Bd7 9.0–0 Qe7 10.Qc2 Rfd8; 5...Nbd7 6.Nbd2 Bd6 7.e3 0–0 8.Bd3 e5 9.de5 Ne5 10.Ne5 Be5) 6.Nbd2 Bd6 7.e3 0–0 8.Be2 Bd7 9.0–0 Qe7 10.Nb3 b6; 5.Nbd2 Bb4 6.e3 Nc6 7.Bd3 0–0 8.0–0 Bd6 9.Ne5 Bd7 10.Bc3 b6) 5...c6 (5...Bd6 6.Nc3= (6.c4 Nc6 7.c5 Be7 8.e3 0–0 9.Nc3 Ne4 10.Bd3 f5) 6...0–0 7.e3 Nc6 8.Be2 Bd7 9.0–0 Re8 10.Qd3 e5; 5...Nc6 6.Nc3 Bd6 7.g3 e5 8.de5 Ne5 9.Ne5 Be5 10.f4 Bd6; 5...a5 6.b5 Be7 7.Nc3 0–0 8.e3 c5 9.Be2 Nbd7 10.0–0 b6) 6.Nbd2 (6.e3 a5 7.c3 Nbd7 8.Bd3 Bd6 9.0–0 0–0 10.Nbd2 e5) 6...Bd6 (6...a5 7.c3= Nbd7 8.e3 Bd6 9.Be2 0–0 10.0–0 e5) 7.e3 (7.c4 0–0+= (7...Nbd7 8.e3 0–0 9.c5 Be7 10.Bd3 b6) 8.c5 Be7 9.e3 b5 10.a4 Bb7) 7...Qc7 (7...a5 8.c4+= 0–0 9.c5 Bc7 10.Bd3 ab4; 7...Nbd7 8.Bd3 Nb6 9.0–0 Na4 10.Qb1 0–0) 8.c4+= b6 (8...Qe7 9.Bd3 Nbd7 10.c5 Bc7) 9.c5 bc5 10.dc5 Be5?? (better is 10...Be7 11.Be5 Qd8+=) 11.Be5+– (11.Be5 Qa7 12.Qc2+–) 1–0. pierre – bojko, internet, 2011.

4.Nf3 Bf5 A) 5.Nh4 Bd7 (5...Be6 6.Nd2 Nc6 7.c3 Qd6 8.e3 g5 9.Nhf3 Bh6 10.Bd3 0–0–0; 5...Qd7 6.Nc3 Nc6 7.b5 ab5 8.Nf5 Qf5 9.Nb5 Ra5 10.e3 Nb4; 5...Bg6 6.a3 Qd6 7.Nc3 Nc6 8.e3 0–0–0 9.b5 ab5 10.Nb5 Qe6; 5...Bg4 6.h3 Be6 7.Nc3 Nc6 8.a3 g6 9.e3 Bg7 10.Bd3 0–0; 5...Qc8 6.Nd2 Nc6 7.a3 Bd7 8.h3 e6 9.e3 Bd6 10.c4 0–0) 6.Nc3 Nc6 7.a3 e6 8.e3 Bd6 9.Bd3 g5 10.Nf3 g4; B) 5.a3 Qd7 (5...e6 6.Nh4 Bg4 7.h3 Bh5 8.Nd2 Nc6 9.g4 Ne4 10.Ne4 Qh4; 5...g6 6.e3 Nc6 7.Nc3 e6 8.h3 Bd6 9.g4 Be4 10.g5 Bf3; 5...Nc6 6.Nc3 e6 7.e3 Bd6 8.Bd3 0–0 9.0–0 Qd7 10.h3 Rfe8; 5...a5 6.b5 Qd6 7.Nh4 Be6 8.Nc3 Nbd7 9.Bc1 g6 10.g3 Bg7; 5...h5 6.Nc3 h4 7.h3 a5 8.b5 Qd6 9.e3 Nbd7 10.Bd3 g6) 6.e3 Nc6 7.Nc3 g6 8.Bd3 Bh6 9.0–0 0–0 10.Ne5 Qe6; C) 5.Nbd2 Nc6 (5...Qd6 6.a3 Nbd7 7.c4 g6 8.cd5 Bh6 9.Nh4 Nd5 10.e3 0–0–0; 5...h6 6.e3 Nc6 7.Bd3 e6 8.a3 Bd6 9.0–0 0–0 10.Qe2 Qd7; 5...g6 6.Nh4 Bd7 7.c4 e6 8.a3 Be7 9.g3 a5 10.b5 dc4; 5...Qd7 6.Nb3 Nc6 7.c3 e6 8.g3 Bd6 9.Nc5 Bc5 10.bc5 0–0; 5...h5 6.e3 Nc6 7.a3 e6 8.Bd3 Bd6 9.0–0 0–0 10.Qe2 Ne4) 6.a3 g6 7.e3 Bg7 8.Bd3 e6 9.0–0 0–0 10.Ne5 a5; D) 5.e3 e6 (5...Nc6 6.a3 e6 7.Nc3 Bd6 8.Bd3 0–0 9.0–0 Ne4 10.Be4 Be4; 5...Nbd7 6.Nh4 Bg6 7.Nd2 e6 8.c3 Bh5 9.Qa4 Bd6 10.Bd3 0–0) 6.a3 a5 7.b5 Nbd7 8.Nc3 Bd6 9.Bd3 0–0 10.0–0 Ne4; E) 5.Nc3 g6 (5...e6 6.a3 Nc6 7.e3 Bd6 8.Bd3 0–0 9.0–0 Qd7 10.h3 Rfe8; 5...Nc6 6.a3 e6 7.Nh4 Bg4 8.h3 Bh5 9.g4 Ne4 10.gh5 Qh4; 5...Qd7 6.a3 Nc6 7.e3 e6 8.Nh4 Bg6 9.Ng6 hg6 10.Be2 Bd6; 5...h6 6.e3 Nc6 7.Bd3 e6 8.a3 Bd6 9.0–0 0–0 10.Qe2 Ne4; 5...Qd6 6.a3 g6 7.e3 Nbd7 8.Bd3 Bg7 9.0–0 e6 10.Qe2 0–0) 6.e3 Nc6 7.a3 Bg7 8.Bd3 Qd7 9.0–0 0–0 10.Ne5 Qe6.

4.Nf3 g6 A) 5.Nbd2 Nc6 (5...Bg7 6.e3 Qd6 7.a3 Bf5 8.Bd3 Bd3 9.cd3 0–0 10.e4 Qd7; 5...Bh6 6.e3 Nc6 7.a3 Bf5 8.Bd3 Qd7 9.0–0 0–0 10.Qe2 Bg7; 5...Qd6 6.a3 Bg7 7.e3 Bf5 8.Bd3 Nc6 9.0–0 e6 10.Ne5 0–0) 6.e3 Nb4 7.c3 Nc6 8.Qb3 b6 9.c4 Bh6 10.Ne5 Na5; B) 5.Nc3 Bg7 (5...Qd6 6.a3 Bh6 7.e3 0–0 8.Bd3 Nc6 9.0–0 Bg7 10.h3 Re8; 5...Nc6 6.a3 Bg7 7.e3 0–0 8.h3 Bf5 9.Bd3 Ne4 10.0–0 e6; 5...Bh6 6.e3 Nc6 7.a3 0–0 8.h3 Bf5 9.Bd3 Ne4 10.0–0 Qd6) 6.e3 Nc6 7.a3 0–0 8.h3 Qd6 9.Bd3 e5 10.de5 Ne5; C) 5.c4 dc4 (5...Bg7 6.Qa4 Nbd7 7.c5 0–0 8.Nc3 Ne4 9.Rc1 Ndf6 10.e3 Bd7; 5...Nc6 6.cd5 Qd5 7.Nc3 Qd6 8.a3 Bh6 9.d5 Ne5 10.Ne4 Nf3) 6.Nbd2 Qd6 7.Bc3 b5 8.e4 Bh6 9.Be2 Qb6 10.0–0 0–0.

4.Nf3 h6 5.Nc3 Nc6 6.a3 Na7 7.e3 e6 8.Bd3 Be7 9.0–0 Bd7 10.e4 de4 11.Ne4 Ne4 12.Be4 c6 (12...Bc6 13.Bc6 Nc6 14.c4+=) 13.c4 0–0 14.Ne5 Bf6 15.Bc2 Be5 (15...b5!?+/–) 16.de5+– Qe7 (16...Bc8 17.Bd4 Qd7 18.Qd3+–) 17.Bd4 Rfd8 18.Qd3 g6 19.Qe3 Kg7 (19...Nc8 20.Qh6 Qf8+–) 20.Ba7 Qg5 21.f4 Qe7 22.Bb6 Rdc8 23.Rfd1 g5 (23...a5+–) 24.Bc5 Qe8 25.Qd3 Qg8 26.Be7 f5 27.ef6 Kf7 28.Qh3 Re8 29.Qh5 Qg6 30.Qg6 1–0. Heini – enemy, internet, 2016.

3.e3 b5

4.a3 h5 5.Nf3 f6 (5...e6 6.Be5+=) 6.Be2 Bg4 (6...h4 7.h3+=) 7.Nd4 (better is 7.h3!? Bf3 8.Bf3+/–) 7...e5= 8.Bg4 ed4?? (better is 8...hg4 9.Ne6 Qd7 10.Nf8 Kf8=) 9.Bh5+– Ke7 10.Bf3 (10.Bd4!? Nc6+–) 10...de3 11.de3 c6 12.0–0 (12.Nd2 a5+–) 12...Qd6 (12...a5 13.Qd2+–) 13.Nd2?? (better is 13.h3+–) 13...Qh2 +–. tanto – jrowe (1660), net–chess.com, 2001.

4.a4 c6 5.ab5+/– cb5 6.Bb5! ab5? (better is 6...Bd7 7.Bd7 Qd7+/–) 7.Ra8+– Bb7 8.Ra2 Nc6 9.Qe2 Qb6 10.Nf3 f6 11.Bd4 Nd4 12.Nd4 e5 13.Qb5 (worse is 13.Nb5 Bb4 14.Rb2 Be7+–) 13...Qb5 14.Nb5 Kd7 15.N1c3 Bb4 16.Ra7 Bc3 17.Rb7 Kc6 18.Rc7 (worse is 18.Nc3 Kb7 19.Nd5 Nh6+–) 18...Kb5 19.Rc3 Nh6 (19...d4 20.ed4 ed4+–) 20.Ke2 d4 (20...Ra8 21.Rb1 Ka4 22.Rcb3 Nf5 23.Ra1) 21.Rb1 (21.Rb1 Ka4 22.Rc7 Ra8 23.Rcb7 d3 24.cd3 Nf5 25.Ra1) 1–0. Degterev,Pavel (2275) – Briceno Ochoa,Jose Antonio, CP–2007–P–00034, 2007.

4.a4+= c6 5.ab5+/– cb5 6.Bb5! ab5? A pinning theme. Opening the a–file gets White a lot of play 7.Ra8+– Bb7 8.Ra7 Qc8 9.Ra5 d4 (9...Ba6 10.Ra3+–) 10.f3 (10.Nf3!? de3 11.fe3 Qc4+–) 10...de3 11.de3 e6 (11...Ba6 12.c3+–) 12.Bc3 (12.Rb5 Bc6 13.Rg5 Bb4 14.Kf2 Bf8 15.Bg7 h6+–) 12...Ba6 13.Qd2 Nc6 14.Ra2 Nf6 (14...e5 15.Nh3+–) 15.e4 (15.Bf6 gf6 16.c3 Bg7+–) 15...Be7 16.Ne2 0–0 17.0–0 (17.Nf4 Rd8 18.Nd3 Nd7+–) 17...Rd8 18.Qe1 (18.Qe1 Bb7 19.Na3+–) 1–0. mtra – gheri, internet, 2002.

4.a4 c6 5.ab5+/– cb5 6.Bb5! Bd7 7.Bd7 Qd7 +/–.

4.a4+= c6 5.ab5+/– cb5 6.Bb5! Bd7 7.Bd7 Nd7 +/–.

4.a4 Nc6 +=.

4.a4 Qd6 +=.

4.a4 Bd7 5.ab5 Nf6 (5...Qc8!?+–) 6.ba6 Nc6 7.b5 Nb4? (7...Na7 8.Bf6 ef6+–) 8.c3 e6 (8...Na6 9.ba6 c5 10.c4+–) 9.cb4 Bb4 10.Nf3 0–0 (10...Bd6 11.Qc2+–) 11.Nc3 (11.Qc2!? Ne4+–) 11...Bd6 (11...c6 12.bc6 Bc6 13.Ne5+–) 12.Qa4 White prepares a7 12...Qb8 (12...Re8 13.Ba3+–) 13.a7 (13.Ba3 Ra7+–) 13...Qd8 (13...Qc8 14.d4+–) 14.Ba3 Qe7 15.Ne5 (15.Bd6 Qd6 16.Qf4 Qb6+–) 15...Ba3 (15...Rfc8 16.d4+–) 16.Qa3 Qd8 (16...Qe8 17.Qc5+–) 17.Bd3 (17.d4 Bc8+–) 17...Bc8 (17...Be8 18.Qc5+–) 18.Nc6 Qd7 (18...Qe8 19.Qe7+–) 19.Ne7 Kh8 20.Ng6! hg6 (20...fg6 21.Qf8) 21.Qf8 Kh7 22.h4 Bb7 (22...Ng4 23.h5 f5 24.Be2+–) 23.Qb8! Nh5 (23...Rb8 24.ab8Q) 24.Qb7 Ra7 25.Ra7 Qd6 26.Qc8 Qb4 27.Ra8 Qg4 (27...Qf8 28.Qf8 Nf4 29.Qh8) 28.Qh8 1–0. pierre – Rudolf, internet, 2008.

4.d3 Bb7 5.Nf3 h6 (5...e6 6.Qd2=) 6.g3 (6.Be2 a5 7.ba5 Ra5+=) 6...Nd7 (6...e6 7.Qd2=) 7.Bg2 Ngf6 8.h3 (8.a3 e6=) 8...g5 (8...e5 9.Ne5 Bb4 10.c3=) 9.Nbd2 Bg7 (9...e6 10.a3=) 10.Nd4 (10.Nb3 e6+=) 10...e6 11.a4 c6 (11...ba4 12.Ra4 c5 13.bc5 Nc5 14.Ra2=) 12.c3 (12.N2b3 Qe7 13.c3 ba4+=) 12...0–0 (12...c5 13.N4b3 Qb6 14.Na5=) 13.a5 (13.0–0 Qc7+=) 13...c5= 14.Nc2 cb4 (14...Ne5 15.Nf3 Nc6 16.0–0=) 15.cb4 Rb8 16.f3 Qc7 (16...Rc8 17.Rc1=) 17.f4 gf4 (17...Rbc8 18.Rc1=) 18.gf4 Rbc8 19.Rc1 Qb8 20.e4?? (better is 20.Rg1+=) 20...Qf4–+ 21.Rf1 (better is 21.Rg1!?–+) 21...Qg3 22.Rf2 de4 23.Nf1 Qg5 24.Nce3 Rc1 25.Bc1 Qe5 26.Qb3 Rc8 27.Bb2 Qd6 28.Nd2? Bd5 29.Qa3 Qg3 30.d4 Nh5 31.Ndf1? Qd6 32.Bh1 ½–½. bentengutama (1955) – beammeupscotty (1840), net–chess.com, 2003.

4.d3 Nd7 5.a4 e5 6.c3 =.

4.Nf3 e6 5.a4 ba4 6.Ne5 =.

4.Nf3 f6 5.a3 e5= 6.d3 Bg4 7.Be2 Bf3 (7...a5 8.ba5 Ra5 9.0–0=) 8.Bf3+= e4? (better is 8...a5 9.c4 e4 10.de4 dc4 11.Qd8 Kd8+=) 9.de4+– c6 (9...a5+–) 10.ed5 Ne7 11.dc6 (11.Nc3 Qd7+–) 11...Nbc6 12.0–0 Qd1 13.Rd1 Rd8 (13...Rc8 14.Nd2+–) 14.Rd8 Nd8 15.Nd2 f5 (15...Nf5 16.c4+–) 16.c4 bc4 17.Nc4 h6 (17...Nc8 18.Rd1+–) 18.Nd6 (18.Bh5 Kd7 19.Ne5 Ke6+–) 18...Kd7 19.Rd1 Ke6 (19...Kc7 20.Ne8 Kc8 21.Be2+–) 20.Nc4 (better is 20.Be2 Nec6 21.Bc4 Ke7 22.Nf5 Ke8 23.Ba6 Rh7+–) 20...Nec6 21.Bc6 (better is 21.g4!? fg4 22.Bg4 Kf7+–) 21...Nc6 22.Bd4 (better is 22.Bg7 Bg7 23.Rd6 Ke7 24.Rc6+–) 22...Kd5 (22...Rg8+–) 23.Bg7 Kc4 24.Bh8 a5 (24...h5 25.Rd7 Be7 26.f3+–) 25.ba5 Na5 26.Rd4 Kb3 27.a4 (27.Rd5 Nc4+–) 27...Bc5 (27...Nc4 28.Rf4+–) 28.Rf4 Bd6 29.Rf5 Nc4 (29...Ka4 30.h4+–) 30.a5 Kb4 31.a6 Bc5 (31...Bb8 32.Bd4 Nd2 33.Rf8+–) 32.Bd4 (better is 32.Bc3! Kb5 33.a7 Nb6+–) 32...Bd4 33.ed4 Kc3 34.a7 Nb6 35.d5 Kd4 36.d6 Ke4 37.Rb5 1–0. Fournier,Frederic (1765) – jr11, Active, 2005.

4.Nf3 f6 5.a4 e5 6.c3 =.

4.Nf3 f6 5.c3 e5 +=.

4.a4 ba4

5.Ra4 Bd7 6.b5 (6.Ra2 e6 7.Nf3 Nf6 8.b5 a5 9.Ne5=; 6.Ra1 Nf6 7.Nf3 e6 8.b5 a5 9.Ne5=) 6...Nf6 7.Nf3 c6 8.ba6 Qb6 9.Ra2 +=.

5.Ra4 e6 6.Nf3 Nf6 7.Ne5 Bb7 8.b5 ab5 9.Ra8 =.

5.Ra4 Nf6 6.Nf3 e6 7.Ne5 Bb7 8.b5 ab5 9.Ra8 =.

5.Nf3 Bd7 +=.

5.Nf3 e6 +=.

4.a4 Bb7

5.ab5+/– ab5 6.Ra8 Ba8 7.Bb5 c6 8.Be2 Qb6 9.c3 e5 10.Nf3 Nd7 (10...Bd6 11.Qa4 Bb7 12.0–0+/–) 11.0–0 (11.Ba3 Bd6+/–) 11...Ngf6 (11...Bd6 12.Qc2+/–) 12.Qa4 White plans b5 (12.d4 e4 13.Nh4 Bb7+/–) 12...Bb7 13.b5 (13.Qc2 Bd6+/–) 13...Nc5 (13...Bd6 14.bc6 Bc6 15.Qc2+=) 14.Qa2 (14.Qc2 Ncd7+/–) 14...Bd6 (14...e4 15.bc6 Bc6 16.Nd4+/–) 15.c4 (15.d4 ed4 16.cd4+/–) 15...0–0 (better is 15...cb5!? 16.d4 ed4 17.ed4 dc4 18.dc5 Bc5+/–) 16.Be5+– Be5 17.Ne5 cb5 (17...Ra8 18.Qb2+–) 18.cb5 Ra8 (18...d4 19.Bc4 Ne6 20.ed4+–) 19.Qc2 (19.Qb2 Ncd7+–) 19...Rc8 20.Nc3 (20.d4 Nce4 21.Qd3 Nd6+–) 20...Nfe4 (20...Ne6 21.Re1+–) 21.Rc1 (better is 21.Bg4 Rc7 22.Rb1+–) 21...Qf6? (better is 21...Ne6+–) 22.Ne4 de4 23.d4 (better is 23.Nc6 Nd3 24.Bd3 ed3 25.Qd3+–) 23...Ne6?? (23...ed3 24.Nd3 Ne6 25.Qc8 Bc8 26.Rc8 Nf8 27.Nc5+–) 24.Nd7 (better is 24.Qc8 Bc8 25.Rc8 Qd8 26.Rd8 Nd8+–) 24...Qg5 (24...Qd8 25.Nc5 Bd5+–) 25.Qc8 Bc8 26.Rc8 Nd8 (26...Qd8 27.Rd8 Nd8+–) 27.b6 h5 28.b7 Kh7 29.b8Q Ne6 30.Rh8 Kg6 31.Bh5 Kf5 (31...Qh5 32.Ne5 Kg5 33.Rh5 Kh5 34.h4 Kh4 35.Nf7 Kh5 36.Qe5 Kg4 37.Qe4 Kh5 38.Qh7 Kg4 39.Qh3) 32.Qe5 1–0. Jimenez Ariza,Jose Manuel – Adrados Gil,Maximo, Aguilar mem, 1999.

5.ab5 ab5 6.Ra8 Ba8 7.Bb5 Bc6 8.Be2 Qd6 (8...Bb7 9.b5+/–) 9.b5 Bb7 10.Nf3 c5 11.Be5 Qd8 12.b6! Nd7 (12...Qb6 13.Bb8) 13.Bc7 Qa8 14.Nc3 Ngf6 15.0–0 e6 16.Qa1 Qa1 (16...Qc8+–) 17.Ra1 Be7? (17...d4 18.ed4 cd4 19.Nd4 Bc5+–) 18.Ra7 Bc8 19.Ne5 0–0 (19...c4 20.b7 Bb7 21.Rb7+–) 20.Nc6 (20.b7 Bb7 21.Rb7 d4+–) 20...Re8 21.b7 (better is 21.Ne7 Re7 22.Nb5 Nb6 23.Bb6 Ra7 24.Na7+– (worse is 24.Ba7 c4+–)) 21...d4 (21...Bb7 22.Rb7 Kf8+–) 22.bc8Q Rc8 23.Ne7 Kh8 24.Nc8 dc3 25.dc3 Ne4 26.Nd6 Nc3 27.Ra8 1–0. pierre – Col_Gonzo, internet, 2008.

5.ab5 ab5 6.Ra8 Ba8 7.Bb5 Nd7 8.Nf3 c6 9.Be2 +/–.

5.ab5 ab5 6.Bb5 c6 7.Ra8 Ba8 8.Ba4 e6 9.Nf3 +/–.

5.ab5+/– c6 6.ba6 Ba6 (6...Na6 7.b5 Nc7 8.Ra8 Ba8 9.bc6 Bc6 10.Nf3+/–) 7.b5! Bb7 (7...Bb5 8.Ra8 Pinning (8.Ra8 Deflection); 7...cb5 8.Bb5) 8.Ra8 Ba8 9.f4 Qb6 (9...Nf6 10.Nf3+/–) 10.Nc3 e6? (better is 10...Nf6+/–) 11.Qa1+– Qb7 (11...d4 12.Qa8 dc3 13.Bc3 cb5 14.Be5+–) 12.Nd5! cd5 (12...cd5 13.Bg7 Combination; 12...ed5 13.Bg7 Combination) 13.Bg7 Bg7 (13...Ne7 14.Bh8 Nf5 15.Nf3+–) 14.Qg7 f6 (14...Nf6 15.Qh8 Ke7 16.Nf3+–) 15.Qh8 Kf8 16.Bd3 f5 (16...h6 17.Nf3 Qg7 18.Qg7 Kg7 19.Rg1+–) 17.Nf3 Qg7 (17...Qe7 18.Ng5 h6 19.Nh7 Kf7 20.Be2 Qh4 21.g3+–) 18.Qg7 Kg7 19.Ke2 Nd7 20.Ra1 Bb7 21.Ra7 Bc8 (21...Nc5+–) 22.Ne5 Ngf6 23.b6 Kh6 24.Nd7 Nd7 25.Rd7! Kg6 (25...Bd7 26.b7 Passed pawn) 26.Rc7 Ba6 27.Ba6 1–0. pierre (2180) – Rudolf, internet, 2007.

5.ab5 e6 6.ba6 Na6 7.b5 Nc5 8.Nf3 Nf6 9.c4 Be7 10.d4 Ra1 11.Ba1 Nce4 12.c5 (12.Nbd2 Bb4 13.Qa4 Qa8 14.Qb4 Qa1 15.Nb1 Nc3+=) 12...0–0 (better is 12...Ng4 13.Qa4 Ngf2 14.b6 Kf8+=) 13.Be2 Qa8 14.Nbd2 Qa5 15.0–0 Ra8 16.Nb3 Qa4 17.Nfd2 Qb4 18.Qc2 Qa4 19.Bc3 Nc3 20.Qc3 Qa7 21.f4 g6 22.h3 h5 23.Ra1 Qb8 24.Ra8 Ba8 25.Qa5 Nd7 26.g4 hg4 27.hg4 g5 28.Kg2 gf4 29.ef4 f6 30.Nf3 1–0. combijack (1760) – silhouet2003, gameknot.com, 2011.

5.ab5 e6 6.Nf3 Nf6 7.ba6 Na6 8.b5 Nc5 9.Ra8 +/–.

5.ab5 Nf6 6.ba6 Na6 7.b5 Nc5 8.Ra8 Qa8 9.Nf3 +/–.

4.Nf3 Nc6

5.a3 a5? 6.c3 (6.Bb5 Bd7+/–) 6...ab4 (6...Na7 7.a4+/–) 7.ab4 (7.Bb5 Bd7 8.cb4 e6+–) 7...Ba6 (7...Ra1 8.Ba1 Na7 9.Be2+=) 8.d4 (8.Ra6 Ra6 9.Bb5 Qa8+/–) 8...g6 (8...e6 9.Ra6 Ra6 10.Bb5+/–) 9.Bd3 h5 10.h4 Bh6 11.Nbd2 Nf6 12.Nb3 Ng4? (better is 12...Ne4+/–) 13.Nc5+– Qc8 14.Na6 (14.Ra6!? Ra6 15.Bb5 Ra7 16.Bc6 Kf8 17.Bd5 c6+–) 14...Ra6 15.Ra6 (better is 15.Bb5 Rb6 16.Qa4+–) 15...Qa6+/– 16.Qe2 f5 (better is 16...Na7!?+/–) 17.Bb5+– Qa2?? (better is 17...Qb6+–) 18.Bc6 Kf8 19.0–0 Kg7 20.Ra1 Qb3 (20...Qc4 21.Qc4 dc4 22.Ra7+–) 21.Ba4 (21.Bb5!? c6 22.Bd3 e5 23.Ra7 Kg8 24.de5 Ne3 25.fe3 Qb2 26.Qb2 Be3 27.Kf1 Ba7+–) 21...Qc4 22.Qc4 dc4 23.Bb5 Rc8 24.Bc4 g5 (24...f4 25.e4 Nf6+–) 25.hg5 Bg5 26.Ng5 Kg6 (26...Kg6 27.Nf3 Nh6+–). Fournier,Frederic – Pachaev,Malik, Partie amicale, 2008.

5.a3 Qd6 6.Be2 +=.

5.a3 Nf6 6.a4 ba4 7.Ra4 +=.

5.a3 Bg4 6.d3 (6.Be2 Qd6+=) 6...e5 (6...Nf6 7.h3 Bf3 8.Qf3+=) 7.Be2 (7.h3 Bf3 8.Qf3 Nf6=) 7...Bf3 (7...Bd6!?=) 8.Bf3+= (worse is 8.gf3 Nh6=) 8...Nf6 9.Nd2 (9.c4 e4 10.de4 de4 11.Bf6 Qd1 12.Bd1 gf6+/–) 9...Bd6 (9...a5 10.ba5 Ra5 11.0–0=) 10.0–0 (10.c4 bc4 11.dc4 e4+=) 10...0–0 (10...a5 11.ba5 Na5 12.c4+=) 11.c4+/– Re8 (11...e4 12.cd5 ef3 13.dc6 fg2 14.Kg2+/–) 12.cd5 Ne7 13.e4 (13.Qb3 a5+/–) 13...c6 14.dc6 (14.d4 Nd7+/–) 14...Nc6+= 15.Nb3 Rc8 16.Rc1 a5 (16...Qd7 17.Qe2+/–) 17.ba5 Nd4 (better is 17...Qe7!?+/–) 18.Nd4+– Rc1 19.Qc1 ed4 20.Qc6 Bc7 21.a6 (better is 21.Rb1+–) 21...Qd6?? (21...Re6 22.Qb5 Rb6=) 22.Qd6 Bd6 23.Bd4 (23.e5 Be5 24.a7 Bh2 25.Kh2 h5+–) 23...Nd7 24.a7 Be5 (24...Ne5 25.Rb1+–) 25.Be3 h6 26.Rb1 Ra8 27.Rb5 Ra7 (27...Kf8+–) 28.Ba7 (28.Ba7 Bf4 29.Rb7+–) 1–0. Iosif,Daniela – Gotschewa,T, Bruchkoebel (Women), 1993.

5.a4+= ba4 6.Ra4 Nf6 7.Be2 +=.

5.a4 Nb4 6.ab5+/– a5? (better is 6...Bf5 7.Nd4 Qc8 8.ba6 e5 9.Nf5 Qf5+/–) 7.c3+– (7.c3 Bf5 8.cb4 ab4 9.Ra8 Qa8 10.Be5+–) 1–0. Wall,Bill – SurfRook, internet, 2004.

5.a4 Nb4 6.c3 Nc6 7.ab5 Rb8 +/–.

5.a4 Rb8!? +=.

5.a4+= Bf5 6.ab5+/– Nb4 7.Nd4 Bd7 (7...Qd7 8.Bc3 e5 9.Nf5 Qf5 10.Bb4 Bb4 11.ba6+/–) 8.ba6 (better is 8.c3!? e5 9.Nb3 ab5 10.cb4 Ra1 11.Ba1+–) 8...c5+/– 9.Nb3 (9.Bc3+/–) 9...e6 (9...Qb6!? 10.c3 Na6 11.Nc5 Qc5 12.Ba6 Qd6+/–) 10.Nc5!+– Nf6 (10...Bc5 11.Bd4 Double attack (11.Bd4 Decoy)) 11.Nd7 Qd7 (11...Nd7 12.c3 Nc6 13.c4+–) 12.Nc3 (12.Bf6 gf6 13.c3 Nc6+–) 12...Be7? (better is 12...Qc8+–) 13.Bb5 Nc6 14.0–0 (better is 14.Ne2!? Bc5+–) 14...0–0 15.Qe2 (15.Qf3 Qc7+–) 15...Qc7 16.Rfb1 Nb4 (16...Rfb8 17.Bd3+–) 17.Bd3 Nd3 18.Qd3 Ng4 (18...Rfc8 19.h3+–) 19.g3 (19.f4 Rfc8+–) 19...Ne5 (better is 19...Rfb8+–) 20.Nd5 (better is 20.Nb5 Qb8 21.Qe2+–) 20...ed5+/– 21.Qd5 Bf6 22.Be5+– Be5 23.d4 Bf6 24.Qb7 White prepares the advance a7 24...Qc3+/– 25.a7 g6 26.Qa8?? Qa1?? 27.Qf8!!+– Kf8 28.Ra1 (28.Ra1 Kg7 29.a8Q Bd4 30.ed4 Kf6 31.Qh8 Kf5 32.Qe5 Kg4 33.Qf4 Kh5 34.Qh4) 1–0. Vermilya,J – Pressley,J, Georgia USA, 1977.

5.Be2 Bg4 6.a3 Nf6 7.0–0 e5 8.Ne5+/– Be2 9.Qe2 Ne5 10.Be5 Bd6 11.Bb2 Qe7 12.d3 0–0 13.Nd2 Rfe8 14.Rac1 c6 15.c4 dc4 16.dc4 Qc7 17.h3 Ne4 18.c5 Bh2+= 19.Kh1 Rad8? 20.Ne4+/– Re4 21.Qf3 Rde8 22.g3+– Bg3 23.fg3 Re3 24.Qg4 Rg3+/– 25.Qd1?? Rh3 26.Kg1 Qg3# 0–1. Onkel_Luis – ronen1967, ICC, 2003.

4.Nf3 Bg4

5.a4 ba4 6.Ra4 Nf6 +=.

5.Be2 Nc6 6.a3 h5 7.h3 Bf5 8.0–0 f6 (better is 8...Nf6!?+=) 9.Nh4+– g6 10.Nf5 gf5 11.Bh5 Kd7 12.Be2 Rh4 13.d4 e6 14.a4 ba4 15.c3 Bh6 16.g3 Rh3 17.Kg2 Rg3 18.Kg3 Qe8 19.f4 Kc8 (19...Bf8 20.Bh5 Qe7 21.Kf2+–) 20.Kf2 Nge7 21.Qa4 Qg8 (21...Kd8 22.Ke1+–) 22.b5 ab5 (22...Nb8+–) 23.Qa8 Kd7 24.Bb5 e5 (24...Qa8 25.Ra8 Bg7+–) 25.Bc6 Ke6 26.Bd5! Nd5 27.Qg8 Ke7 28.Ra8 ef4 29.Qe8 Kd6 30.Rd8# 1–0. Woschkat,Karl_Heinz – Albrecht,Markus, remoteschach.de, 2002.

5.Be2 Nc6 6.a4 Bf3 7.gf3 Rb8 +=.

5.Be2 Nc6 6.h3 Bf3= 7.Bf3 Nb4 8.a3 Nc6 9.Nc3 (9.e4 d4 10.e5 Ne5 11.Ba8 Qa8 12.0–0+= (12.Bd4?? Qg2 13.Be5 Qh1 14.Ke2 Qe4 15.Kf1 Qe5–+)) 9...Nf6–/+ 10.0–0 e5 11.e4 d4 12.Nd5 Nd5 (better is 12...Bc5!?–/+) 13.ed5= Na5 (13...Ne7 14.d6 cd6 15.Ba8 Qa8 16.Re1=) 14.d3 (14.Re1 Be7=) 14...Bd6 15.c3 (15.Qe1 c5 16.dc6 0–0=) 15...dc3 (15...0–0 16.cd4 ed4 17.Bd4+=) 16.Bc3= Nb7 17.Re1 (17.d4 e4 18.Be4 Qh4=) 17...0–0+= 18.Be5 Be5 19.Re5 Nd6 (19...Qd6 20.Qe2=) 20.Be4 (20.Qc2 a5=) 20...g6 21.Qe2 Qf6 (21...Qh4 22.Bf3+=) 22.d4 (22.Bf3 Rfe8 23.d4 Qh4=) 22...Nc4–/+ (22...Ne4?! 23.Qe4 Rad8 24.Rc1=) 23.Bf3 Ne5 24.de5 Qb6 (24...Qe7 25.d6 cd6 26.Ba8 Ra8 27.Qf3–/+) 25.e6 (better is 25.Rc1–/+) 25...Rae8?? (better is 25...Qd6–/+) 26.e7+– Qf6 (26...Qd6 27.ef8R Kf8 28.Qc2+–) 27.ef8Q (27.Re1 Qd6 28.ef8R Rf8+–) 27...Kf8 28.Qd1 Rd8 (28...Kg8 29.Rc1 Qd6 30.a4+–) 29.Rc1 Qb2 (29...Qe7 30.Qd4 Kg8 31.a4+–) 30.Rc7 Qa3 31.Qd4 Kg8 32.Rc6 (32.Qf6 Qf8 33.Qa6 b4+–) 32...b4 (32...a5 33.d6 Qb4 34.Qf6 Qe1 35.Kh2+–) 33.Qc5 (better is 33.d6!? Qa5+–) 33...Qa1 34.Kh2 Qe5 35.g3 b3 36.Rb6 Rb8 (36...b2 37.Qe3 Qe3 38.fe3+–) 37.Rb8 (better is 37.Qe3!? Qc7 38.Rb3 Rb3 39.Qb3 a5+–) 37...Qb8 38.Be4 (better is 38.d6 b2 39.Be4+–) 38...b2? (better is 38...Qe5 39.f3 Kg7+–) 39.d6 Qd8 (39...Qe8 40.Qc7 b1Q 41.Bb1 Qe1+–) 40.Qc7 Qe8 41.Qb7 (41.d7!? Qf8+–) 41...Qe5 (41...Qd8 42.Qe7 Qf8+–) 42.d7 Qd4 43.Kg2 (better is 43.Qb8 Kg7 44.d8Q Qd8 45.Qd8+–) 43...Kg7 44.Bb1 a5 (44...h5+–) 45.Qc7 (better is 45.Ba2+–) 45...Qd5 46.Kh2 Qd4 47.Kg2?? (better is 47.Qc2 Qd7 48.Qb2 f6 49.Qa3+–) 47...Qd5= 48.f3?? (better is 48.Kg1 Qd1 49.Kh2=) 48...Qd2 ½–½. Trokenheim,Marek – Krumich,Vaclav, Stockholm, 1983.

5.Be2 Nd7 6.Nc3 c6 7.0–0 Bf3 8.Bf3 Ngf6 9.a4 (9.e4 e6 10.ed5 cd5+=) 9...e5+= 10.Na2 (10.ab5!? ab5 11.Ra8 Qa8 12.Qa1+=) 10...e4 11.Bg4 Bd6 12.a5 (12.Bd7 Qd7 13.Bf6 gf6=) 12...Qc7 (12...Ne5!? 13.Be2 0–0+=) 13.Bd7= Qd7 14.d4 (better is 14.Bf6 gf6 15.f4=) 14...0–0–/+ 15.f3 (15.Qe2 g6–/+) 15...Rae8 (15...ef3 16.Rf3 Rae8 17.Qd3–+) 16.f4–/+ Ng4 17.Bc1 Qf5 18.h3 Nf6 19.c3 (19.Bd2 Re7–/+) 19...Nd7 20.g4 Qg6 21.Bd2 h5 22.Rf2 hg4 23.hg4 Nf6 24.g5 Nh5 25.Rh2 Nf6 26.Kf1 Nh7 27.Qg4? (27.Qh5 Qh5 28.Rh5 g6=) 27...f5?? (better is 27...Ng5 28.Qh5 Qh5 29.Rh5 Nf3–+) 28.Qh4= Be7 (better is 28...Rf7!?=) 29.Ke2 1–0. Baer,Cy (1895) – Briceno,Jose (1930), CiF, 2007.

5.Be2 Nf6 6.a4 Bf3 7.Bf3 +=.

3.e3 c6

4.a3 Nd7 5.Nf3 h6 6.c4 Ngf6 7.Nc3 e6 8.d4 Be7 9.Bd3 0–0 10.Qb3 Qc7 11.0–0 Nb6 12.c5 Nbd7 13.Qc2 e5 14.de5 Ne5 15.Ne5 Qe5 16.Na4 Qg5 17.Nb6 Rb8 18.f4 Qg4? (better is 18...Qh5!? 19.Rfe1 Nd7 20.Nc8 Rbc8+/–) 19.Be5+– (19.Nc8?! Qc8 20.Be5 Ra8+/–) 19...Be6 (19...Bd7 20.Nd7 Qd7 21.Bb8 Rb8+–) 20.f5 Bd7 (20...Rbe8 21.fe6 Qe6 22.Bd4+–) 21.Bf6 Bf6 22.Nd7 Ba1 23.Ra1 Rfe8 24.Nb8 Rb8 25.Qe2 Qg5 26.e4 Re8 27.e5 g6 (27...a5 28.e6 fe6 29.fe6+–) 28.Rf1 gf5 29.Rf5 Qc1 30.Rf1 Qg5 31.Qf2 Qg7 32.Qf5 Re5 (32...Re7 33.Qc8 Qf8 34.Bh7 Kg7 35.Qf5+–) 33.Qc8 Qf8 34.Qb7 Re3 (34...Qe8 35.Qa6 Re1 36.g3+–) 35.Bg6! Kg7 (35...fg6 36.Qc6 Double attack (36.Rf8 Pinning; 36.Rf8 Deflection; 36.Qc6 Decoy)) 36.Rf7 1–0. Janek – ostron, internet, 2016.

4.a4 Nd7 5.c4 Ngf6 6.cd5 Nd5 7.Nf3 Nb4 8.Nc3 Nd5 9.Nd5 cd5 10.a5 Nf6 11.Bd3 e6 12.0–0 h6 (12...Bd6 13.Bd4+=) 13.Qb1 b5 14.ab6 Qb6 15.Qa2 Bb4?? (better is 15...a5=) 16.Rfb1+– a5 17.Bd4 Qd6 18.Qa4 Bd7 19.Qb4!! ab4 (19...ab4 20.Ra8 Decoy; 19...Qb4 20.Rb4 Combination) 20.Ra8 Ke7 21.Rh8 Ne8 (21...Qc7 22.Ra8+–) 22.Rc1 f6 (22...Qb8 23.Bg7! f6+–) 23.Bc5 Qc5 24.Rc5 Kf7 (24...b3 25.Bb1 e5 26.d4+–) 25.Bb5 Bb5 26.Rb5 Nd6 27.Rb6 Nf5 28.Rb7 Kg6 29.g4 e5 30.h4 Nh4 31.Nh4 Kg5 32.Rg7 Kh4 33.Rh6# 1–0. Heqexe – Stucer, internet, 2017.

4.c4 e6 5.c5 a5 =.

4.c4 e6 5.cd5 ed5 6.a3 Nf6 =.

4.c4 e6 5.cd5 ed5 6.Nf3 Nd7 (6...Bb4?? 7.Bg7 Nf6 8.Bh8+–) 7.Be2 Ngf6 (7...Bb4?? 8.Bg7 Ngf6 9.Bh8+–) 8.a3 Bd6 9.d4 (9.0–0 0–0=) 9...0–0 10.0–0 Ne4 11.Bd3 (11.Nc3 Re8=) 11...f5 (11...Qe7 12.Nbd2=) 12.Ne5 (12.Nc3 Qf6=) 12...Qe7+= 13.Nd7 (13.Nf3 f4+=) 13...Bd7 14.f3 (14.Nc3 Qh4 15.g3 Qh3+=) 14...Qh4–/+ 15.f4 g5 (15...Qe7 16.Nd2–/+) 16.Be4 (16.Nd2!? gf4 17.Nf3–/+) 16...fe4–/+ (16...de4?! 17.Qb3 Rf7 18.d5=) 17.g3 Qh3 18.Qe2 Bg4 19.Qg2 (19.Qf2 gf4 20.gf4 Rf5–+) 19...Qh5 (better is 19...gf4 20.ef4 a5 21.ba5 Qg2 22.Kg2 Ra5–/+) 20.Rf2? (better is 20.Qd2–+) 20...Bh3 21.Qh1 Qd1 (21...Qd1 22.Rf1 Qf1#) 0–1. Rohrbacher,Walter – Oser,Thor, Baden–ch SN Karlsruhe, 2003.

4.c4 e6 5.cd5 ed5 6.Nf3 Be7?? 7.Bg7+– Bf6 8.Bh8 Ba1 (8...Bh8 9.d4 Qe7+–) 9.Ba1 Ne7 10.Nc3 Ng6 11.d4 Bg4 12.Be2 Nd7 13.a4 b5 (13...Nf6 14.0–0+–) 14.ab5 ab5 15.0–0 Nb6 16.Qb3 Bf3 17.Bf3 (17.gf3?! Qg5 18.Kh1 Nh4+/–) 17...Nc4 18.Be2 (better is 18.Qc2 Qg5 19.Be2 Nh4+–) 18...Nd2 19.Qb1?? (better is 19.Qd1 Nf1 20.Qf1+– (worse is 20.Kf1 Qd6+–)) 19…Nb1–+ (19...Nb1 20.Rb1 f5–+) 0–1. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

4.c4 e6 5.cd5 ed5 6.Nf3 Nf6 7.a3 Bd6 =.

4.c4 Nf6 5.Nf3 =.

4.Nf3 Bg4 5.h3 Bh5 6.a3 e6 7.c4 a5 8.c5 Nf6 9.Be2 Nbd7 10.d4 Ne4 11.Nc3 f5 12.Nd2 Be2 13.Ne2 (worse is 13.Ke2 Be7–/+) 13...Qh4 14.Ne4 fe4 15.Nf4 Qf6 16.Qg4 Ke7 17.0–0 g6 18.Qg3 Bh6 19.Ne2 Rhc8 20.Bc3 a4 21.f3 Be3 22.Kh1 Qf5?? (22...Qg5 23.Qd6 Kd8 24.fe4 Qe7+–) 23.fe4+– Qe4 (23...Qg5 24.Qd6 Ke8 25.Qe6 Qe7 26.Qg8 Nf8 27.ed5 Bh6+–) 24.Qd6 Ke8 25.Ng3 Qh4 26.Qe6 (26.Qe6 Qe7 27.Qg8 Nf8 28.Rae1+–) 1–0. pcmvr (2830) – iozeph (2615), net–chess.com, 2014.

3.e3 Nc6

4.a3 b5 5.a4 Bb7 (better is 5...ba4 6.Ra4 e5=) 6.ab5+/– ab5 7.Ra8 Ba8 8.Bb5 e6 9.Nf3 Qd7?? (9...Qd6 10.Bc3+/–) 10.c4 (10.Ne5 Qd6 11.c4 Qb4 12.Bc3+– (12.Bc6?! Bc6 13.Nc6 Qb2+=; 12.Nc6?! Qb2 13.Nc3 dc4+/–)) 10...f6 11.Qa4 Bb7 12.Nd4 Nge7 13.Qb3 (13.Nb3 dc4 14.Nc5 Qc8+–) 13...g6? (better is 13...e5!? 14.cd5 Nd5 15.Nc6 Bc6 16.Bc6 Qc6+/–) 14.Nc6+– Bc6 15.Bf6 Rg8 16.Bc6 Nc6 17.cd5 ed5 18.Bc3 d4? (18...Be7+–) 19.Qg8 dc3 20.dc3 Qd3 21.Qa2 Be7 22.Rg1 (22.h4 Bf6+–) 22...Bd6 23.Qg8 Kd7 24.Qh7 Ne7 25.Qh3 Kc6 (25...Nf5 26.Nd2 Qc3 27.Ke2+–) 26.Qf3 Kb6 (26...Nd5 27.Qd1 Qd1 28.Kd1 Bh2 29.Rh1+–) 27.Qd1 Qc4 28.h3 Nc6 29.Qe2 (29.Qe2 Qb3 30.Qd3 Nb4 31.Qg6+–) 1–0. Fischer,Diana – Jancic, corr BdF–II–1991, 1982.

4.a3 b5 5.Nf3 Bb7 6.Be2 Qd6 7.d3 e5 8.Nbd2 Nf6 9.0–0 Be7 10.c4 0–0 11.cd5 Qd5 12.e4 Qd7 (12...Qd6 13.Rc1=) 13.Nb3 (better is 13.Ne5!? Ne5 14.Be5+/–) 13...Bd6 14.Rc1 Rfd8 15.Qc2 Rac8 (15...Qe6 16.Nc5 Bc5 17.Qc5=) 16.Rfd1 (16.Nc5 Bc5 17.Qc5 Nd4 18.Nd4 ed4+/–) 16...Qe7+= 17.Nc5 Bc5 18.Qc5 Qc5 19.Rc5 Increases the pressure on e5 19...Re8? (better is 19...Nd7 20.Rc3 Nf6+=) 20.Ne5 (20.Rdc1 Re6 21.Ne5 Ne5 22.Be5 c6+–) 20...Ne5 21.Be5 c6 (21...Nd7 22.Rc7 Be4 23.Rc8 Rc8 24.Bg4+–) 22.Bf6 gf6 23.f3 Kh8 24.Kf2 Rg8 25.d4 Rg6 26.d5 cd5 27.Rc8 (27.ed5 Rcg8 28.g3 Rh6+–) 27...Bc8 28.Rd5 (28.ed5 Bd7+–) 28...Rg8 29.Bd1 Bb7? (29...Kg7+–) 30.Rd7 Bc8 31.Rf7 Be6 (31...f5 32.ef5 Rg7 33.Rf8 Rg8 34.Rg8 Kg8 35.g4+–) 32.Rf6 Bc4 (32...Rg6 33.Rg6 hg6 34.f4+–) 33.Ra6 Rd8 34.Be2 (better is 34.Ke1+–) 34...Rd2 35.Ra7 (35.f4!? Re2 36.Kf3 Ra2+–) 35...Re2+/– 36.Kg3 Ra2 37.e5 Bf1 38.e6 (38.h4 Rg2 39.Kf4 Kg8+/–) 38...Rg2 39.Kf4 Rg7? (39...Re2!? 40.e7 Kg8+=) 40.Rg7 (better is 40.e7!? Rg8 41.Ke5+–) 40...Kg7+/– 41.Ke5 Bc4? (better is 41...Bh3+=) 42.f4+– Kf8 43.Kd6 Ke8 44.f5 Bd3 (44...Bf1 45.f6 Bh3+–) 45.f6 Bf5 (45...Bg6+–) 46.f7 Kf8 47.Kd7 (47.Ke5 Bg6 48.Kf6 Bf7 49.ef7 h6 50.h4 h5 51.Ke6 Kg7 52.Ke7 Kg6 53.f8Q Kh7 54.Qf5 Kh6 55.Qg5 Kh7 56.Kf6 Kh8 57.Qg7) 47...h5 48.h4 Bg4 49.Kd6 (better is 49.a4 ba4 50.b5 a3+–) 49...Bh3 50.Ke5 (better is 50.a4 ba4 51.b5+–) 50...Ke7–/+ 51.f8Q Kf8 52.Kf6 (52.Kd6 Ke8–/+) 52...Ke8 53.Kg5 Bg4 54.Kf6 Be2 55.Ke5 (55.e7 Bc4–+) 55...Ke7 56.Kd5 Bc4 57.Ke5 (57.Kc5 Bf1 58.Kd5 Bd3–/+) 57...Be6 58.Kd4 (58.Kf4 Kd6 59.Ke4 Bd7–+) 58...Bc4 (better is 58...Kf6–+) 59.a4 Kd6 60.ab5? (better is 60.a5–+) 60...Bb5 61.Ke4 Be2 62.Kd4 Kc6 63.Kc3 Kb5 64.Kb3 Bf1 65.Kc3 Bc4 66.Kd4 Kb4 67.Ke3 Be6 68.Kd4 Bg4 69.Kd3 Kc5 70.Ke4 Kc4 71.Ke3 Kd5 72.Kd3 (72.Kf4 Be2–+) 72...Ke5 73.Ke3 Kf5 74.Kf2 Kf4 75.Kg2 Black now must not overlook the idea Bf5 75...Bf5 76.Kf2 If White now only could play Kg4... 76...Kg4 77.Kg2 Kh4 78.Kh2 Kg4 (78...Bh3 79.Kh1 Kg3 80.Kg1 h4 81.Kh1 Bg4 82.Kg1 Be2 83.Kh1 h3 84.Kg1 h2 85.Kh1 Bf3) 79.Kg2 Kf4 80.Kh2 Kf3 81.Kg1 h4 (81...Bd3 82.Kh2 Bf1 83.Kg1 Ke2 84.Kh2 Kf2 85.Kh1 h4 86.Kh2 h3 87.Kh1 Kg3 88.Kg1 Be2 89.Kh1 Bf3 90.Kg1 h2 91.Kf1 h1Q) 82.Kh2 (82.Kf1 Bd3 83.Ke1 Ke3 84.Kd1 h3 85.Kc1 h2 86.Kb2 h1Q 87.Kc3 Qd5 88.Kb2 Qc4 89.Ka3 Bc2 90.Kb2 Qb3 91.Kc1 Qb1) 82...Kg4 (82...Kf2 83.Kh1 Kg3 84.Kg1 Bd3 85.Kh1 h3 86.Kg1 h2 87.Kh1 Be4) 83.Kg2–+ Be4 84.Kh2 h3 85.Kg1 Kg3 (85...Kf3 86.Kh2 Bf5 87.Kg1 Bd3 88.Kh2 Kg4 89.Kg1 Kg3 90.Kh1 Be2 91.Kg1 h2 92.Kh1 Bf3) 86.Kf1–+ Kh2 87.Kf2 Kh1 88.Kf1 h2 (better is 88...Bg2!? 89.Kf2–+) 89.Kf2 Bb7 90.Kf1 Bg2 (better is 90...Ba6!? 91.Kf2 Bd3 92.Ke3–+) 91.Kf2 Bh3 92.Kg3 Kg1 93.Kh3 h1Q 94.Kg3 (94.Kg4 Qe4 95.Kh5 Kf2 96.Kh6 Qe6 97.Kg7 Ke3 98.Kf8 Kd4 99.Kg7 Ke5 100.Kh7 Qg4 101.Kh6 Kf6 102.Kh7 Qg7) 94...Qg2 (94...Qe4 95.Kh3 Kf2 96.Kh2 Qg2) 95.Kf4–+ Kf2 96.Ke5 Qf3 97.Kd4 Ke2 98.Ke5 Ke3 99.Kd6 Qe4 100.Kc5 (100.Kd7 Qd3 101.Kc6–+) 100...Qd4 101.Kc6 Qe5 (101...Ke4 102.Kb7 Kd5 103.Kc7 Qa7 104.Kd8 Kd6 105.Ke8 Qe7) 102.Kb6 Kd4 103.Kc6 Kc4 (103...Qe6 104.Kb5 Qd6 105.Ka5 Qc7 106.Ka6 Qb8 107.Ka5 Kc5 108.Ka4 Qb4) 104.Kb6 Qc5 105.Kb7 Kb5 106.Kb8 Ka6 107.Ka8 Qa7 0–1. Fournier,Frederic (1885) – Viking (1670), Active, 2011.

4.a3 b5 5.Nf3 h6 6.Be2 (6.a4 ba4 7.Ra4 Rb8+=) 6...Bf5 (6...Qd6 7.0–0+=) 7.0–0 e6 8.d3 Bd6 (8...a5!? 9.a4 Qe7+=) 9.Bg7+/– Rh7 10.Bb2 Kd7 (10...Bg4!?+/–) 11.c4+– Nf6 (11...Ke8 12.Nc3+–) 12.Nh4 d4 (13.Bf3 Bg6+–; 12...Bg6 13.c5 Be7 14.Ng6 fg6 15.d4+–). pcmvr (2225) – valerypavlovich (2100), net–chess.com, 2006.

4.a3 d4 5.ed4 Nd4 6.Nf3 Nc6 7.d4 Bg4 8.d5 Na7 9.h3 Bf3 10.Qf3 (10.gf3?! Qd7=) 10...f6 11.Bd3 Qd6 12.Nc3 g6 13.0–0 Bg7 14.Rad1 0–0–0 15.Ne4 Qd5 16.Ba6! Qc6 (16...ba6 17.Qd3 Double attack (17.Rd5 Discovered attack; 17.Qd3 Decoy)) 17.Qg4 f5 (17...e6 18.Bb7! Kb7 19.Nc5 Kc8 20.Rd8 Kd8 21.Ne6 Ke7+–) 18.Rd8 Kd8 19.Qd1 Kc8 20.Bg7 ba6 21.Nc5 h5 22.Bh8 Nh6 23.Re1 Nf7 24.Re7 Nd6 25.Ne6 Nab5 26.a4 Nc3 27.Bc3 1–0. pcmvr (2845) – bienopia (2155), net–chess.com, 2011.

4.a3 e6 5.Nf3 f6 6.c4 dc4 7.Bc4 Nge7 8.0–0 e5 9.Nc3 b5 10.Ba2 Qd6 (10...Bg4!?+=) 11.Ne4 Qd3 12.Nc5 Qd6 (12...Qg6 13.d4 e4 14.Ne1+/–) 13.Qb3 Nd5?? (better is 13...Nf5+/–) 14.Qd5+– Qd5 (14...a5 15.d4 ab4 16.Qf7 Kd8 17.de5 Qc5 18.Rfd1 Bd6 19.ed6 cd6 20.Qg7+–) 15.Bd5 Bd7 (15...Nb4 16.ab4 Bc5 17.Ba8 Bb4 18.Ba3+–) 16.Rac1 (16.Nd7 Kd7 17.Rfc1 Nb4 18.Ba8 Nd3+–) 16...Bc5 (16...0–0–0 17.Nd7 Nb4 18.Nf8 Nd5 19.Ne6+–) 17.Rc5 Rd8 (17...a5 18.Rc6 Bc6 19.Bc6 Ke7 20.Ba8 Ra8 21.ba5 Ra5 22.Rc1+–) 18.Bc6 Bc6 19.Rc6 Kd7 20.Rfc1 Rc8 21.e4 Rhe8 22.Ra6 Re6 (22...Re7 23.Ra7+–) 23.Re6 Ke6 24.Kf1 (24.d4 c6+–) 24...Kd6 (24...g5 25.Rc6 Kf7 26.d4+–) 25.d4 ed4 26.Nd4 c6 27.Nc6! Kd7 (27...Rc6 28.Rc6 Combination) 28.Nd4 h6 29.Nf5 (29.Rc8 Kc8 30.Ne6 g6+–) 29...Re8 30.f3 Rg8 31.Ke2 Kd8 1–0. Ryan,Robert A – Moloney,T, Beacon Seniors op, 2006.

4.a3 e6 5.Nf3 Nf6 6.Be2 Be7 7.0–0 0–0 8.c4 dc4 9.Bc4 b5 10.Bb3 Bb7 11.Nd4 (better is 11.Qe2!?+=) 11...Qd6 12.Nc6 Qc6 13.f3 Rad8 14.Nc3 Ng4 15.Qe2 Ne5 16.Ne4 Ng6 17.Rac1 Qd7 18.Rfd1 Be4 19.fe4 Qd3 20.Qd3 Rd3 21.Ba2 (better is 21.Bc2!? Rd7 22.d4+/–) 21...Rc8 22.Rc6 (22.Kf2 Bf6 23.Ke2 Bb2 24.Kd3 Ba3 25.Rb1+=) 22...Rd6 (better is 22...Bg5!?–/+) 23.Rc2 c5? (23...Rd3 24.Kf2 Rcd8 25.Ke2+=) 24.bc5 (24.Rc5 Rc5 25.bc5+/–) 24...Rdc6? (better is 24...Rd3 25.Rdc1 Rc5+/–) 25.d4+– Kf8 26.e5 Bg5 27.Bc1 Ke7 28.g3 Nf8 29.h4 Bh6 30.g4 g6 31.g5 Bg7 32.Bd2 h6 33.e4 h5 34.Bb4 Ra8 35.Rf2 Nd7 (35...Ke8+–) 36.d5 Rc5 (36...Ne5 37.dc6 Nc6 38.Rd7 Kd7 39.Rf7 Ke8 40.Rg7 Rd8 41.Be6 Rd3+–) 37.Rf7!! Kf7 38.de6 Ke7 39.Rd7 Ke8 40.Bc5 Be5 41.Re7 Kd8 42.Rf7 Rc8 43.Rf8 1–0. lukekyte101 – subedi (1635), gameknot.com, 2014.

4.a3 f6 5.Nf3 Bg4 6.c4 h6? (6...e5!?=) 7.cd5 (7.Qc2!? Be6 8.Nh4+–) 7...Qd5+= 8.Nc3 Qd8 (8...Qh5!?+=) 9.h3 Bh5 10.d4 e6 11.Be2 Nge7 12.b5 ab5 13.Nb5 Nf5?? (13...Nd5 14.Qc2 Bf7 15.Nc3=) 14.0–0?? (14.g4 Ne3 15.fe3 Bg6+–) 14...Bd6? (better is 14...Bf7+=) 15.g4+– Bg4 (15...Ne3 16.fe3 (16.Nd6?! Qd6 17.fe3 Qg3 18.Kh1 Qh3 19.Nh2 Bg6+–) 16...Bf7 17.Bd3+–) 16.hg4 Nfe7 17.Nd6 Qd6 18.Bb5 0–0–0 (18...h5 19.g5+–) 19.a4 Na5 (19...e5 20.Qc2 h5 21.g5+–) 20.Qc2 (20.Ba3!? c5 21.Bc5 Qc7+–) 20...h5 (20...Nec6 21.Kg2+–) 21.g5 (21.Ba3 Qd5 22.Be7 hg4 23.Bd8 Kd8+–) 21...h4 (21...Nec6 22.Qg6+–) 22.Nh2 (22.Ba3 c5+–) 22...fg5 (22...Qd5 23.f4+–) 23.Ng4 (better is 23.Ba3 c5 24.Bc5 Qc7+–) 23...h3 24.Ba3 Qd7 (24...Qd5 25.e4 Qb3 26.Qb3 Nb3 27.Be7 Rd4+–) 25.Bd7 Rd7 26.Ne5 Rdd8 27.Be7 h2 28.Kh1 Rde8 29.Bg5 Rhg8 30.Rac1 c6 31.Nf7 Ref8 32.Nd6 Kc7 33.Bf4 (better is 33.Qc5 Rf5 34.Nf5+–) 33...g5 34.Be5 g4 35.Nc4 Kd7 36.Qh7 Ke8 37.Nd6 Kd8 38.Nb7 Nb7 39.Qc7 Ke8 40.Qc6 Ke7 41.Qb7 Ke8 42.Rc8 1–0. maaxa – A27, Live Game Caissa's Web, 2004.

4.a3 g6?? 5.Bh8+– f6 6.h4 (6.Nf3 Nh6+–) 6...b6 (6...Nh6 7.h5 Ne5 8.hg6 hg6 9.Bd3+–) 7.h5 g5 8.Bd3 Bb7 (8...f5 9.Nf3 e6 10.Be2+–) 9.Bh7 Nh6 10.Bg6 Kd7 11.Nf3 Qe8 (11...e6+–) 12.Be8 (12.Be8 Ke8 13.Nc3+–) 1–0. Janek – Gerry, internet, 2016.

4.Na3 Nb4–/+ 5.Bc3 e6 6.Qb1 a5 7.Nf3 Bc5?? (7...c6 8.Be2–/+) 8.d4 (better is 8.Bg7 e5 9.Bh8+–) 8...Bd6 9.Bd3?? (9.Nb5 Be7–/+) 9...Nf6 (9...Nd3 10.cd3 Ba3 11.Qc2–+) 10.0–0?? (10.Be2 c6–/+) 10...0–0 11.Nb5 c6 12.Bb4 Bb4 13.a3 Be7 14.Nc3 a4 15.Ne5 Bd7 16.Qb7= Qc8 17.Qb1 Rb8 18.Qd1 Ne8?? 19.e4 f6 20.Ng4?? f5?? 21.ef5+= ef5 22.Ne5 Ra8 23.Ne2 c5 24.c3 c4 25.Bc2 Bf6 26.Nf3 Nd6 27.Ng3 g6 28.Rb1 f4 29.Ne2= Bd8 30.h3 Bh3 31.Nf4?? Rf4–+ 32.Nh2 h5 33.gh3 Qh3 34.Qe1 Ba5?? 35.f3?? Qd7?? 36.Qg3?? Rf6 37.Bg6?? Qg7–+ 38.Bh7 Kh7 39.Qg7 Kg7 40.Rb5 Nb5 41.f4 Bc3 42.Nf3 Rf4 43.Kg2 Bd4 44.Kh3 c3 45.Nd4 Rf1 0–1. 488 – gordiemac, ChessWorld.net, 2012.

4.a4 Nb4!? 5.Nf3 Nf6 –/+.

4.a4 e6 5.b5= ab5 (5...Nb4 6.ba6 Na6 7.Bb5 c6 8.Be2=) 6.ab5 Ra1 7.Ba1 Nce7 8.c4 (8.Nf3 Nf6=) 8...dc4 9.Bc4 Ng6 (9...Nf6 10.Bf6 gf6 11.d4=) 10.Nf3 Nf6 11.Nc3 (11.0–0 Bd6=) 11...Bd6 12.0–0 b6 (12...0–0 13.d4=) 13.d4 (13.d3 0–0+=) 13...Bb7 (better is 13...0–0=) 14.Ne5 (better is 14.d5!?+=) 14...Ne5=+ 15.de5 Be5 16.Qd8 (16.f4 Qd1 17.Rd1 Bc3 18.Bc3 c5=+) 16...Kd8 17.f4 Bd6 18.Nb1 Rg8 19.Nd2 Nd5 20.Bd4 Kd7 21.g3 g6 22.Ra1 Ra8 23.Ra8=+ Ba8 24.Ne4 f5 25.Bd5 ed5 26.Nf6 Ke6 27.Nh7 c5 28.bc6 b5 29.Ng5 Ke7 30.Nf3 Bc6=+ 31.Ne1 b4–/+ 32.Nd3 Be8 33.Kf2 b3 34.Ke1 Bb5 35.Nb2 Ba3 36.Kd1 Kf7 37.Kd2 Bb2 38.Bb2=+ Bc4 39.h3 Kg8 40.Kc3 Kh7 41.Kd4 Kh6 42.g4= fg4 43.hg4 g5 44.f5 Be2 45.Kd5 ½–½. Rush,Bradley – Howard,Geoff, corr IECG Cat–C, 1995.

4.b5 Na7 5.ba6 ba6 =.

4.c3 e5+= 5.d4 Be7 6.Nd2 Be6 7.c4? (better is 7.de5!? Ne5 8.Ngf3 Nf3 9.Nf3=) 7...Bb4–/+ 8.a3 Ba5 9.Qb3. Pscheidl,Carolin – Sundby,Sigurd (1700), RSS5E easy–53, 2008.

4.c4 Nb4 5.Qa4 Nc6 6.cd5 Qd5 +=.

4.c4 b5?? 5.cb5+/– ab5 6.Bb5 Qd6 7.Nf3 Bd7 8.a3 f6 9.d4 Rb8 (9...Na7 10.Bd3+–) 10.Nc3 Nd8 11.Bd3 Nf7 12.e4 de4 13.Ne4 Qb6 14.Nc5 Bc6 15.0–0 Bd5 (15...e5 16.Rc1 Bc5 17.Rc5+– (17.dc5?! Qb7+–)) 16.Re1 e6 (16...Nd6 17.Qe2+–) 17.Ne6! Be7 (17...Be6 18.d5 Pinning (18.d5 Decoy)) 18.Qa4 c6 19.Ng7 Kf8 20.Ne6 Be6 (20...Ke8 21.Re3+–) 21.Re6 Bd6 (21...Nd8 22.Re4+–) 22.Rc1 c5 23.Ne5! fe5 24.de5 cb4 (24...h5 25.ed6 Rh6 26.Bg6 Rg6 27.Rg6+–) 25.ed6 h5 (25...Qd8+–) 26.Rc7 Rh6 27.Qd7 black resigned. 1–0. pcmvr – mpenga (2435), net–chess.com, 2012.

4.Nf3 Nb4 5.Be2 +=.

4.Nf3 Bg4 5.Be2 (5.b5 ab5 6.Bb5 Nf6=) 5...Bf3 6.Bf3 e5 (6...Nb4 7.0–0+=) 7.a3= Nf6 8.0–0 e4 9.Be2 Bd6 10.c4 (10.f3 0–0=) 10...Qe7 (10...dc4 11.f4+=) 11.g3 (better is 11.d4 ed3 12.Bd3 dc4 13.Bc4=) 11...b6?? (better is 11...dc4 12.Bc4 Ne5+=) 12.cd5 Ne5 13.Nc3 b5 14.d4 Ned7 15.Qc2 0–0–0? (15...h5+/–) 16.Nb5?? (better is 16.a4 Bb4 17.ab5+–) 16...ab5+= 17.Bb5 Nb8 (17...Nd5?? 18.Ba6 Kb8 19.Qc6 Nc5 20.bc5 Bg3 21.Qb7) 18.Qa4 (18.Bc6 Rdf8 19.Qa4 Kd8+=) 18...h5 (18...Nd5 19.Rfc1+=) 19.Ba6 (better is 19.Qa8!? Rdg8 20.a4+/–) 19...Na6= 20.Qa6 Kd7 21.Qc6 Kc8 22.b5 Nd7 Black prepares the advance h4 (22...Qe8 23.h4=) 23.Qa6 (better is 23.Rfc1!? Nb8 24.Qc2=) 23...Kb8+= 24.a4 h4 (24...Rh6 25.b6 cb6= (worse is 25...Nb6 26.a5 Nd5 27.Qb5 Ka7 28.Qd5+=)) 25.a5= hg3 26.fg3 Qg5 27.Bc1?? (better is 27.b6 Qe3 28.Rf2 Qf2 29.Kf2 Rh2 30.Kf1 Rb2 31.Qa7 Kc8 32.Rc1 Nb6 33.ab6+–) 27...Rh2!! 28.Kh2 (28.Kh2 Qg3 Mate attack) 28...Qg3 29.Kh1 Rh8 0–1. Fournier,Frederic (2030) – NeoBg (2005), Echecs21, 2003.

4.a3 e5

5.c4 dc4 6.Bc4 b5 7.Bb3 Qd6 8.Nc3 Nf6 9.Qc2 Bb7 10.f3 g6 11.Nh3 Bh6 12.Nf2 Ne7 13.e4 Rd8 14.Rd1 0–0 15.Bc1 Nc6 16.Ne2 a5 17.ba5 Na5 18.Ba2 c5 (18...Bg7 19.d4+=) 19.0–0 (19.d4!? Bc1 20.dc5+=) 19...c4 20.d3 Bc1 21.Qc1 Nb3 ½–½. Bartle,Georg (1785) – Mayer,Franz (1910), Emmendingen GER, Badischer Ch–B, 2012.

5.c4 dc4 6.Bc4 Qd6 7.Nf3 Nf6 8.Qb3 Be6 9.Be6 fe6 10.Nc3 g6 (10...Be7!?+=) 11.b5 ab5 (Better is 11...Ne7!?+/–) 12.Nb5+– (12.Qb5?! Bg7+=) 12...Qd7 (12...Qe7 13.Ne5 (13.Be5?! Ne5 14.Ne5 Bg7+/–) 13...Bg7 14.Nc6 bc6 15.Nd4+–) 13.Ne5 Ne5 14.Be5 Bg7 15.Nc7 1–0. byron_de – Stiller, ChessWorld.net, 2002.

5.c4 dc4 6.Bc4 Nf6 7.Qc2 Bd6 8.Nf3 h6 9.Nc3 b5 (better is 9...Bg4=) 10.Nb5!+/– 0–0 (10...ab5 11.Bb5 Combination) 11.Nd6 Qd6 12.h4 Be6? (12...e4 13.Nd4 Ne5 14.Rc1+/–) 13.Be2 (better is 13.Be6!? fe6 14.Rc1+–) 13...Rfe8 14.Rc1 Bd5 15.Bc4 Bf3 16.gf3 Na7? (16...Rad8 17.d3+/– (17.Ba6?! Nb4 18.ab4 Qa6+=)) 17.Rg1 Re7? (17...Kf8+–) 18.Qg6 Ne8 19.Qg2 (19.Qd6!? Nd6 20.Ba6 Nab5 21.Bb5 Nb5+–) 19...Rd8 20.d3 Kh7 21.Ke2 Nc8 22.Rcd1 (22.f4 f6 23.Qg6 Kh8 24.fe5 fe5+–) 22...Qf6? (better is 22...Nb6+/–) 23.f4!+– Qh4 (23...ef4 24.Bf6 Pinning (24.Bf6 Deflection)) 24.Be5 Qh5 25.Qg4 Qg4 26.Rg4 f6 27.Bb2 Nb6 28.Ba6 Nd6 29.Rdg1?? (29.Rc1 Red7+–) 29...Nf5? (better is 29...Ra8 30.b5 c6+/–) 30.Bb7+– h5 (30...Nd5 31.b5+–) 31.Rh1 Nd5 (31...Kh6 32.Be4 Re4 33.de4+–) 32.Rh5 Nh6 33.Rgh4 Red7 34.Rd5 Rd5 35.Bd5 Rd5 36.e4 Rd7 37.f5 Rd6 38.Rh1 g6 39.fg6 Kg6 40.f4 f5 41.Rc1 (41.Rc1 c6 42.a4+–) 1–0. combijack (1815) – oungthu, gameknot.com, 2011.

5.c4 dc4 6.Bc4 Nf6 7.Nf3 Bd6 (7...b5 8.Bb3 Bd6 9.Qc2=) 8.Ng5 0–0 9.0–0 (9.Qc2!?=+) 9...h6–/+ 10.Nf7 Rf7 11.Bf7 Kf7 12.Nc3 Be6 13.d3 (13.Qc2 Qe8–/+) 13...Qe7 (13...Kg8 14.Rc1–/+) 14.Rc1 Kg8 15.h3 (15.b5 Na5–/+) 15...Rd8 16.Qc2 Nd5 17.Ne4 Rc8 (17...Qf7 18.Qe2–/+) 18.Qe2 (18.Qa4 Nb6 19.Qd1 Qh4–/+) 18...Bf5 (18...Rf8 19.Rfd1–/+) 19.Qf3 Rf8 20.Qg3 (20.Nc5 Be6 21.Qe4 Bc5 22.bc5 Rf5–/+) 20...Be4 21.de4 Nf6 22.f3 Nh5 (22...Qe6 23.Rb1=+) 23.Qg4 Nf6 24.Qh4 Nh7 25.Qf2 Ng5 26.Qc2 Ne6 27.Rfd1 Qg5 28.Qb3 Qe7 29.Rd2 Kh8 30.Qc4 Qf6 31.Rdc2 Qg6 32.Kh1 h5 33.Qd5 Rd8 34.Rc6= bc6 35.Rc6 Qf6 36.Ra6 h4= 37.f4 Nf4 38.ef4+/– Qf4 39.Qd3 Be7 40.Qe2 Rd2? 41.Ra8+– Kh7 42.Qh5 Qh6 43.Qf5 Qg6 44.Rh8!! (44...Kh8 45.Qg6+–) 1–0. Wall,Bill – Tusy, Internet, 2005.

5.c4 e4 6.Nc3 Be6 (6...dc4 7.Ne4 Bf5 8.Qf3=) 7.cd5+= Bd5 8.Nge2 Nf6 9.Nf4 Be7 (9...Ne7 10.d3+=) 10.Nfd5+/– Nd5 11.Ne4 0–0 12.Qb3 Nf6 13.Bd3 Ne4 (13...Nd7!?+/–) 14.Be4+– Qd7 15.Rc1 Rad8 16.d4 Bf6 (16...a5 17.d5 Na7 18.ba5+–) 17.0–0 Qg4 (17...Rfe8 18.Qc2+–) 18.Bc6 bc6 19.Rc6 h5 (19...Be7 20.Ra6 Bd6 21.Rc6+–) 20.Rc7 h4 21.h3 Qe4 22.Rfc1 Rd5 (22...Rd6 23.Qc2 Qe6 24.Qc4+–) 23.f3 Qg6 (23...Qe6 24.R1c6 Rd6+–) 24.Qd5 Rd8 (24...Bg5 25.f4 Bd8 26.Rd7+–) 25.Rc8 Rf8 (25...Rc8 26.Rc8 Kh7+–) 26.Rf8 Kf8 27.Rc8 Ke7 28.Qd8 Ke6 29.Rc6 Kf5 30.Qd5 Be5 31.Qe5 1–0. wznf – qdjw, internet, 2009.

5.c4 Nce7 6.Be5+= c6 (6...Nc6 7.Bb2+/–) 7.c5 Ng6 8.Bb2 Rb8 9.Nf3 b6 10.d4 (10.cb6 Qb6 11.Bd4 Qc7+–) 10...b5 (10...a5 11.Bc3+/–) 11.Ne5 (11.Bd3!? Nh4 12.0–0 Nf3 13.Qf3 Qh4+–) 11...Ne5+/– 12.de5 Be6 13.Nd2 Nh6 14.Nf3 Bg4 15.Be2 Bf3 (15...Be7 16.0–0+–) 16.Bf3 (worse is 16.gf3 Qg5+/–) 16...a5 (16...Nf5 17.e6 Qe7 18.ef7 Kf7 19.0–0+–) 17.0–0 Be7 (17...Qh4 18.e4 de4+–) 18.e6 (better is 18.e4+–) 18...0–0 19.ef7 Rf7 (19...Nf7 20.Bd4+/–) 20.Re1 (20.e4 de4 21.Be4+–) 20...Qd7? (better is 20...Bf6 21.Bd4 Bd4 22.Qd4 Qg5+/–) 21.e4+– Rd8 (21...Bh4 22.ed5 cd5 23.Re5+–) 22.ed5 cd5 23.Bh5 (23.Re5!? Rf3 24.Qf3 Bf6+–) 23...g6 (23...Rff8 24.Qd3+–) 24.Bf3 Rf5 (24...Bf6 25.Bf6 Rf6 26.Qd2 Rf3 27.gf3+– (27.Qh6?! Rf7+–)) 25.Qb3 Bf6 (25...a4 26.Qd3 Bh4+–) 26.Bf6 Rf6 27.Rad1 a4 (27...Qc7 28.Rd5 Kg7 29.Rd8 Qd8 30.Rd1+–) 28.Qd5 Nf7 (28...Qd5 29.Rd5 Rdf8+–) 29.Qd7 Rd7 30.Rd7 h5 31.c6 Nd6 32.c7 Nc8 33.Rd8 (33.Re8 Rf8 34.Bd5 Kh8 35.Rf8) 33...Rf8 34.Ree8 Re8 35.Re8 (35.Re8 Kg7 36.Rc8+–) 1–0. nordlicht – anishmadan, gameknot.com, 2001.

5.d3 Nf6 6.Nf3 Bd6 7.c4 b6 8.Qc2 Qe7 (8...dc4 9.dc4 Bg4 10.c5 bc5 11.Nbd2+=) 9.Be2 (9.cd5!? Nb8 10.e4+/–) 9...Bb7 10.Nc3 dc4 11.dc4 0–0 12.0–0 Rfe8 13.e4 (13.Nd5 Nd5 14.cd5 Na7+=) 13...Rad8 (13...Nd4 14.Qd3+=) 14.Rac1 (14.Nd5!? Nd5 15.ed5+=) 14...Nd4+= 15.Qb1?? (better is 15.Qd3+=) 15...Ne2 16.Ne2 Be4 (worse is 16...Ne4 17.Rfd1–+) 17.Qa1 Bf3 18.gf3 c5 19.Kh1 (19.Ng3 Nd7–+) 19...Qb7 (19...cb4 20.ab4 Bb4 21.Rcd1–+) 20.Rc3 (20.Ng1 Qc6–+) 20...e4 (20...cb4 21.ab4 Bb4 22.Rb3–+) 21.Re3 (21.Rb3 ef3 22.Ng3 Re6–+) 21...ef3 22.Re8 (22.Ng3 Re3 23.Bf6 Bg3 (23...gf6?! 24.fe3 f2 25.e4 Bg3 26.hg3–+) 24.Bg7 Bf2–+) 22...Ne8 23.Ng1 Qe4 24.Qd1 Bc7 (better is 24...Qc4!? 25.Re1 Qh4 26.Nf3 Qf2 27.Bc3–+) 25.Qf3 Qf3 (better is 25...Qc4!? 26.Rc1 Qd5 27.bc5 bc5 28.Rc2–+) 26.Nf3 Rd3 27.Nh4? (27.Re1!? Nd6 28.bc5 bc5 29.Kg2–+) 27...Rh3 28.Re1 (28.Nf5 Rh2 29.Kg1 Kf8–+) 28...Kf8 (worse is 28...Rh2 29.Kg1 Kf8 30.Nf3–+) 29.Nf5 Rf3 (worse is 29...Rh2 30.Kg1 g6 31.bc5 bc5 32.Ne3–+; 29...Bh2?! 30.bc5 bc5 31.Kg2–+) 30.Ng3 Rf2 31.Be5 (31.Bc1 Bd6–+) 31...Be5 32.Re5 cb4 33.ab4 Rf4 (33...Rb2 34.b5 ab5 35.cb5–+) 34.c5?! (34.Re4 Re4 35.Ne4–+) 34...Rb4 35.cb6 Rb6 36.Ne4 Re6 37.Rh5 (37.Re6 fe6 38.Ng5–+) 37...Re4 38.Rh7 0–1. Pachurka,Roland – Behrendt,Matthias, Schleswig Holstein–ch B, 2007.

5.d3 Nf6 6.Nf3 Bd6 7.c4 d4 8.e4 (8.ed4 Nd4 9.c5 Be7=) 8...0–0 9.Be2 b6 10.0–0 Nd7 11.Nbd2 Qf6 12.Ne1 Nd8 13.g3 (13.Bg4 Ne6+=) 13...Ne6 14.Bg4 a5 15.Qb3 a4 16.Qc2 Qg6 17.Bf5 Qh5 18.Kg2 g6 19.Be6 fe6 20.Bc1 g5 21.h3 Qg6 22.Nef3 h5 Black prepares g4 23.Nh2 g4 24.hg4 hg4 25.Qd1 Nf6 26.f3 Ra7 27.fg4 c5 28.bc5 bc5 29.Ra2 Rh7 ½–½. Raijmaekers,Kees (2405) – Denzin,Michael (2300), RS–Pyramide remoteschach.de, 2005. (=1.a3 e5 2.e3 Nc6 3.b4 d5 4.Bb2 a6)

5.d4 ed4+= 6.ed4 Bd6 7.Bd3 (7.Nf3 Nf6 8.Be2 0–0 9.0–0 Re8 10.Nc3 h6 11.Re1; 7.Be2 Nf6 8.Nf3 0–0 9.0–0 Bf5 10.Nc3 Re8 11.Re1; 7.Nd2 Nf6 8.Be2 0–0 9.Ngf3 Bf5 10.0–0 Re8 11.Re1) 7...Nf6 8.Ne2 (8.Nf3 Qe7 9.Be2 0–0 10.0–0 Bf5 11.Nc3) 8...0–0 9.0–0 (9.Nbc3 Be6 10.h3 a5 11.b5) 9...Re8 (9...Ng4 10.g3 Qf6 11.Nbc3) 10.Nd2 Bg4 11.Re1.

5.d4 ed4+= 6.ed4 Be6 7.Nc3 (7.Nf3 Nf6 8.Bd3 Bd6 9.Nbd2 0–0 10.0–0 h6 11.Ne5; 7.Bd3 Bd6 8.Nf3 Nh6 9.0–0 0–0 10.Nc3 g6 11.Na4; 7.Nd2 Bd6 8.Ngf3 Nh6 9.Bd3 0–0 10.0–0 Qf6 11.c4; 7.Be2 Bd6 8.Nf3 Nh6 9.Nc3 0–0 10.0–0 Qf6 11.b5) 7...Nf6 8.Nf3 Bd6 9.Bd3 Bg4 10.h3 Bf3 11.Qf3.

5.d4 ed4+= 6.ed4 Nf6 7.Nf3 (7.Bd3 Bd6 8.Ne2 (8.Nf3 Qe7 9.Be2 Bf5 10.Nc3 0–0 11.0–0) 8...0–0 9.0–0 Re8 (9...Ng4 10.g3 Be6 11.Qd2) 10.Nd2 (10.Nbc3 Be6 11.Qd2) 10...Be6 11.Ng3; 7.Nc3 Bd6 8.Bd3 a5 9.b5 Nd4 10.Nd5 Be5 11.c3; 7.Be2 Bd6 8.Nf3 0–0 9.0–0 Bf5 10.Nc3 h6 11.Re1; 7.Nd2 Bd6 8.Be2 0–0 9.Ngf3 Re8 10.0–0 Bf5 11.Re1) 7...Bg4 (7...Bd6 8.Bd3 (8.Be2 0–0 9.0–0 Re8 10.Nc3 Bf5 11.Re1) 8...Qe7 9.Be2 0–0 10.0–0 (10.Nc3 Bf5 11.0–0) 10...Bf5 11.Nc3) 8.Be2 (8.Nbd2 Bd6 9.Be2 0–0 10.0–0 Re8 11.h3) 8...Bd6 9.0–0 (9.Nbd2 0–0 10.0–0 Re8 11.h3) 9...0–0 10.Re1 (10.Nbd2 Re8 11.h3) 10...Re8 11.Nbd2 (11.h3+=) 11...Qd7 12.h3 Bf5 13.c4 Bf4 14.b5 ab5 15.cb5 Ne7 16.Nb3 (16.Ne5 Qd6+=) 16...b6 (16...Qd6!?–/+) 17.Ne5= Qd6 18.g3 Bh6 19.g4 (19.h4 Qe6=) 19...Be6+= 20.Bd3 Ng6 21.Bg6 hg6 22.Qd3 Bd7 (22...Ne4 23.f3 f6 24.fe4 de4 25.Re4 fe5 26.Rae1= (worse is 26.Re5 Bf4 27.Qc3 Rf8–+)) 23.Bc1 (23.Kg2 Bf4+=) 23...Bc1+= 24.Rec1 Ra4 (24...Ne4 25.a4+=) 25.Nd2 Rea8 26.Rc3 Ne4 (26...g5 27.Rb3+=) 27.Ne4 de4 28.Qe4 Bb5 29.Rb1 Be8 30.Rbc1 c5 31.Rc4 cd4 32.Ra4 Ra4 33.Ng6 Qe6 34.Qe6 fe6 35.Ne5 Ra3 36.h4 Kf8 37.f4 Ra2 (37...Bb5 38.Kf2+=) 38.h5 b5 (38...Bb5 39.Rd1+=) 39.Rc8 Ra7 40.Kf2 Ke7 41.Rb8 Ra1 42.Rb7 Kf8 43.Ke2 Ra3 44.Rb8 Re3 45.Kd2 Ke7 46.Rb7 ½–½. Buss,Michael D – Wochnik,Manfred, corr 3GMMsemi–01, 1998.

5.d4 ed4+= 6.Bd4 A) 6...Nf6 7.Nc3 (7.Nf3 Be7 8.Nc3 0–0 9.Bd3 a5 10.b5 Nd4 11.Nd4) 7...Be7 8.Nf3 0–0 9.Bd3 a5 10.b5 Nd4 11.Nd4; B) 6...Nd4 7.Qd4 a5 8.Nc3 ab4 9.Nd5 Be6 10.0–0–0 ba3 11.Qe5; C) 6...a5 7.ba5 (7.b5 Nd4 8.Qd4 Qf6 9.Nc3 Qd4 10.ed4 Nf6 11.Nf3) 7...Nd4 8.Qd4 Ra5 9.Nf3 Ne7 10.Bd3 Nc6 11.Qb2.

5.d4 Bd6 6.c4 dc4 7.d5 Nce7 8.Bc4 Nf6 9.Nf3 Ned5 10.0–0 Nb6 11.Nbd2.

5.Be2 Bd6 6.b5 (6.Nf3 Nf6=) 6...ab5+= 7.Bb5 Bd7 8.Ne2 Nf6 9.0–0 0–0 10.Ng3 Ra5 11.Be2 e4 12.Bc3 Ra8 13.Bf6 Qf6 (13...gf6?! 14.c4 Bg3 15.fg3 dc4 16.Qc2=) 14.Nh5?? (better is 14.Nc3 Ne7 15.f3 Bg3 16.hg3–/+) 14...Qa1–+ 15.c3 Ba3 16.Qb3 Qb2 (better is 16...Bd6!? 17.Qd5 Ra5 18.Qb3–+) 17.Qd5 Be6 (17...Bd6 18.Qe4 Rfe8 19.Qf3–+) 18.Qe4?? (better is 18.Qg5 g6 19.Nf6 Kg7 20.Nh5 Kg8 21.Nf6 Kg7 22.Nh5 Kg8=) 18...g6 19.Nf6 Kg7 20.Qh4 (20.Na3 Ra3 21.Qh4 Rfa8–+ (21...Qd2?! 22.Nh5 gh5 23.Qg5 Kh8 24.Qf6 Kg8 25.Qg5 Kh8 26.Qf6 Kg8 27.Qg5 Kh8=)) 20...h6 (20...Be7!? 21.Nh5 gh5 22.Qh5–+) 21.Qf4 (21.Na3 Ra3 22.Ne4–+) 21...Bd6 22.Nh5 (22.Qh4 Ra1 23.Bd3–+) 22...gh5 23.Qe4 Ra5 24.Bd3 (24.Qh4 Ra1 25.Bd3 Ba2 26.Qh5 Ne5–+) 24...Rh8 (24...Bf5 25.Qf5 Rf5 26.Bf5–+) 25.Be2 (25.Qh4 Ne5 26.Be4 Ng6 27.Bg6 fg6–+) 25...Bf5 26.Qf3 (26.Qh4 Bb1 27.Rd1 Bc2–+) 26...Bb1 (better is 26...Bg4 27.Qe4 Be2 28.Re1–+) 27.Qh5 Rh5 (27...Rh5 28.Bh5 Ra8–+) 0–1. Bernard – Steve, playchess.de, 2001.

5.Nf3 d4 6.ed4 ed4 7.Qe2 (7.b5 Qe7 8.Qe2 ab5 9.Qe7 Nce7 10.Bb5 c6+=) 7...Be7 (7...Nge7!?=) 8.Ne5+= Nf6 9.Nc6 bc6 10.Qf3 (10.Qc4!?+/–) 10...Bb7 11.Qg3 (better is 11.Bc4=) 11...Nh5?? (11...0–0 12.Bc4+=) 12.Qb3 (12.Qe5!? Nf6 13.Qd4+/–) 12...Bf6 (12...0–0 13.Bc4=) 13.Bc4 (13.Qf3 Qd5 14.Be2 Qf3 15.Bf3 Nf4=) 13...Qe7 (13...0–0 14.Qf3 Re8 15.Kd1=) 14.Kd1+= c5?? (better is 14...0–0 15.Qf3 g6+=) 15.Re1+– Be5 16.g3 (16.Bd5 c4 17.Qa4 c6 18.Bc6 Kf8 19.Bd4 Bd4 20.Re7 Ke7 21.Bb7 Ba1 22.Ba8 Ra8+–) 16...0–0 (16...Qg5 17.f4 (17.Bf7?! Kf8+–) 17...Nf4 18.bc5+–) 17.f4 Qf6 (17...Nf6 18.Re5 Qd7 19.Rc5+–) 18.Re5 Rae8 (18...Qc6 19.Bd5 Qb5+–) 19.Bf7! Qf7 (19...Qf7 20.Rf5 Double attack (20.Rf5 Decoy; 20.Rh5 Zwischenzug); 19...Rf7 20.Re8 Mate attack) 20.Qf7 Kf7 21.d3 (better is 21.bc5!? Re5 22.fe5+/–) 21...Re5= 22.fe5 Ke6 23.Nd2 Ke5 (23...Rf2 24.bc5 Rh2 25.Nb3 Ke5 26.Nd4=) 24.bc5 (24.Ke2 Bc8 25.Nb3 Bg4 26.Ke1 Re8+/–) 24...Kd5 (24...Rf2 25.Nb3 Rh2 26.Nd4=) 25.Ke2 (25.Nb3 Rf2 26.Bd4 Rh2+=) 25...Kc5 (25...Bc8!? 26.Nb3 Bg4 27.Ke1 Re8 28.Kf1 Re2 29.Bd4 Rh2 30.c4 Ke6 31.Re1 Kf7=) 26.Nb3+/– Kd5 27.Bd4 c5? (better is 27...Rf5!?+–) 28.Bc5 (28.c4 Kc6 29.Nc5 Rf7+–) 28...Re8 29.Kd2 Nf6 (29...Kc6 30.c4+–) 30.Re1 (better is 30.c4 Kc6 31.Bd4+–) 30...Rc8? (30...Re1 31.c4 Kc6 32.Ke1 Ng4+–) 31.c4 (31.Re7 Ba8 32.Rg7 Ke5+–) 31...Kc6 32.Re6 Kd7 (32...Kc7 33.Re7 Nd7 34.Rg7 h5+–) 33.Re7 Kc6 34.Rg7 (better is 34.d4 Nd7 35.Na5 Kc7 36.Nb7 Kb7 37.Rd7 Rc7+–) 34...Rh8 (34...Rg8 35.Rf7 Nd7+–) 35.Bd4 Rf8 (35...Bc8 36.Bf6 h5 37.Nd4 Kb6 38.c5 Ka5 39.Rc7+–) 36.Na5 Kd6 37.Nb7 Ke6 (37...Kc6 38.Nc5 Ra8 39.Rf7+–) 38.Nc5 Kf5 39.Bf6 (better is 39.h3 Ne8 40.g4 Kf4 41.Rh7 Rg8+–) 39...Rf6 40.g4 (better is 40.Rh7 Kg6 41.Ra7 Rf2 42.Ke3 Rh2 43.Ra6 Kf7+–) 40...Ke5 (40...Kf4+–) 41.Nd7 Ke6 42.Nf6 Kf6 43.Rh7 Kg5 44.c5 Kg6 45.Ra7 Kg5 46.c6 Kg4 (46...Kh4 47.c7 a5 48.c8Q Kh3 49.Qc7 Kg2 50.Qg3 Kh1 51.Re7 a4 52.Re1) 47.c7 a5 (47...Kh3 48.c8Q Kg2 49.Rg7 Kh1 50.Qc6 Kh2 51.Qg2) 48.c8Q Kf3 (48...Kg5 49.Ra5 Kf6 50.Qc6 Ke7 51.Ra7 Kd8 52.Qd7) 49.Rf7 (49.Qh3 Kf4 50.Qh5 a4 51.Ra4) 49...Kg2 50.Qg4 Kh1 51.Rf2 a4 52.Qg2 1–0. mgriffin (1615) – heyuneverno, net–chess.com, 2001. (=1.a3 d5 2.b4 e5 3.e3 a6 4.Bb2 Nc6 5.Nf3 d4)

5.Nf3 Qd6 6.c4 Nf6 (6...Bg4 7.h3 Bf3 8.Qf3 dc4 9.Bc4+=) 7.c5 (better is 7.b5!? e4 8.bc6 ef3 9.Qf3+=) 7...Qe6= 8.Be2 (8.Qa4 Bd7=) 8...h6 (8...Be7 9.0–0=) 9.0–0 g6 (9...Be7 10.d3=) 10.d3 (10.Qa4 Nd7+=) 10...Bg7= 11.Nc3 (11.Qa4 Nd7+=) 11...0–0 12.Qc2 e4 (12...Re8 13.Rfe1=) 13.de4+= Ne4 (13...de4 14.Nd2+=) 14.Ne4 (14.Rfd1 Nf6+=) 14...Bb2 15.Qb2 de4 16.Nd2 Qf5 17.Qc2 Be6 (17...Re8 18.h3+=) 18.Qe4 Qe4 (18...Rad8 19.Rad1+/–) 19.Ne4 Ne7 (19...Rad8 20.Nc3+/–) 20.Rfd1 (20.Bf3 Rad8+/–) 20...Kh7 (20...Rad8 21.Bf3+/–) 21.Bf3+– Rab8? (21...Rad8 22.Nc3 b6 23.Bb7+–) 22.h3 (better is 22.Nf6 Kg7 23.Nd7+–) 22...f5 (22...Rfd8 23.a4+/–) 23.Nc3 c6 (23...g5 24.b5+–) 24.Rd6 Rf6 25.Rad1 (25.e4 Nc8 26.Rd8 Kg7+–) 25...g5 (better is 25...Re8+–) 26.e4 (26.e4 Nc8 27.ef5 Nd6 28.Rd6+– (28.cd6?! Bf5 29.Be4 Rd8=; 28.fe6?! Nf5+–)) 1–0. aschellen – kangy32, internet, 2006.

5.Nf3 e4 6.Nd4 Nd4 7.Bd4 b6 8.d3 c5 9.bc5 bc5 10.Bb2 c4 (better is 10...Qb6 11.Qc1 Nf6=) 11.de4+/– de4 12.Qd8 Kd8 13.Bc4 Be6 (13...f5!?+/–) 14.Be6+– fe6 15.0–0 (15.Nd2 Nf6+–) 15...Rb8 (15...Rc8 16.Rc1+/–) 16.Bc3 (16.Rd1 Kc8 17.Bd4 Nf6+–) 16...Nf6 17.Nd2 Bc5 (17...Rc8 18.Bf6 gf6 19.Ne4+/–) 18.Bf6 gf6 19.Ne4 Be7 20.c3 (20.Rfb1 Kc7+/–) 20...Rc8 (20...Kc7 21.h3+/–) 21.Rac1 (21.Rfd1 Kc7 22.Kf1+–) 21...Ba3 (better is 21...Rc6!?+/–) 22.Ra1+– Rc4 (22...Be7 23.Ra6 Ke8 24.Rb1+–) 23.Ra3 (23.Nd2!? Rc3 24.Nb1 Rc6 25.Na3 Ke7+–) 23...Re4 24.Ra6 Ke7 25.Rc1 (25.Ra7 Kd6+–) 25...Rc8 (25...Rd8+–) 26.Ra7 Kd6 27.Rd1 Kc5 28.Ra5 (28.Rh7!? Rc4+–) 28...Kb6 29.Rh5 Rc3 30.Rh7 Rec4 31.g3 Rc1 32.Rc1 Rc1 33.Kg2 Kc6 34.Rh6 Kd5 (34...Kd6 35.Rf6 Ke7 36.Rf4+–) 35.Rf6 e5 (35...Rc7 36.g4+–) 36.Rf5 Ke4 (36...Ke6 37.g4+–) 37.Rg5 Rc2 38.h4 (38...Kd5 39.h5+–) 1–0. Royalfork – CheckYourMate, Live Game Caissa's Web, 2004.

5.Nf3 e4 6.Nd4 Nd4 7.Bd4 Nf6 8.c4 c6 9.cd5 cd5 10.Nc3 Be6 11.Be2 (11.d3 Be7+=) 11...Be7 12.0–0 0–0 13.f4 Bf5 14.Qb3 Qd7 15.Rac1 Rac8 16.Na4 Rc1 17.Rc1 b5 18.Nb6 Qe6 19.Rc7 (19.Bf6 Bf6 20.Nd5=) 19...Rd8 (better is 19...Bd8!? 20.Rb7 Qc6+=) 20.Qc2 (20.Ra7 Bg4 21.Bg4 Ng4 22.Nd5 Rc8+–) 20...h6 (20...Bg4 21.Bg4 Ng4 22.Rc6+=) 21.Ra7+/– Bg4 (21...Rb8 22.Qc7 Bd6 23.Qc6+/–) 22.Bf1 (22.Bg4 Ng4 23.h3+– (23.Ra6?! Bh4+/–)) 22...g5? (22...Rb8 23.Qc7 Bd6+–) 23.fg5+– hg5 24.Ra6 Nd7 25.Ra8?? (25.Bb5!? Nb6 26.Rb6 Bd6+–) 25...Ra8?? 26.Na8+– Bd6 27.Nc7 Qh6 28.h3 Be6 29.Ne6 fe6 1–0. Fournier,Frederic (1880) – spidired (1745), Active (5/0), 2005.

5.Nf3 e4 6.Nd4 Nd4 7.Bd4 Qg5 8.h3 Be6 9.Nc3 Nf6 10.d3 Bd6 11.de4 de4 (better is 11...Ne4!? 12.Ne4 de4=) 12.Bf6+/– Qf6 13.Ne4 Qe5 14.Nd6 Qd6 (14...cd6 15.Qd4+/–) 15.Qd6 cd6 16.Bd3 1–0. Fournier,Frederic (1990) – NN, Active, 2004.

5.Nf3 e4 6.Nd4 Bd7 7.c4 Nf6 8.cd5 Nd4 9.Bd4 Ba4?? (better is 9...Nd5 10.d3 Qh4+=) 10.Qa4+– (10.Qa4 b5 11.Qc2+–) 1–0. Tyhla – Hexeq, internet, 2017.

5.Nf3 e4 6.Ng1 f6 7.d3 Bd6 (7...Bf5 8.Nc3=) 8.de4 de4 9.Bc4 Nge7 10.Ne2 (10.Qh5 g6 11.Qh4 Ne5+=) 10...b5 (10...Bf5 11.Nbc3=) 11.Bb3 Bb7 (11...a5 12.Nbc3=) 12.0–0 (12.Nd2 a5+=) 12...Qd7 (12...a5 13.Nd2=) 13.Nbc3 Qf5 14.f3 (better is 14.Ng3 Bg3 15.fg3+=) 14...Ne5?? (better is 14...Rd8!? 15.Qe1 ef3 16.Rf3 Qe5+=) 15.fe4 (better is 15.Ng3!? Qg6 16.Nge4 Be4 17.Ne4+– (17.fe4?! Qh6=)) 15...Qh5 16.h3 (better is 16.Nf4 Qd1 17.Rad1+=) 16...c5?? (better is 16...0–0–0+=) 17.Qd6+– Rd8 (17...c4 18.Nf4 Qg5 19.Ncd5 Bd5 20.Nd5 Nd5 21.Qd5 Nf3 22.Rf3 Qd5 23.ed5 cb3 24.cb3+–) 18.Qb6 (18.Qc5 Rd7+–) 18...Rb8 (18...c4 19.Qb7 cb3 20.cb3+–) 19.Qc5 (19.Nd5 Nd5 20.Bd5 Nd7 21.Qe6 Kd8+–) 19...Rc8 (19...Qg5 20.Qc7 Qe3 21.Kh2+–) 20.Qb6 Rb8 (20...Bc6 21.Nf4 Qh4+–) 21.Qc7 N5c6 22.Qg3 (22.Nd5 Qe2 23.Rf2 Rc8 24.Qb7 Rb8 25.Qb8 Nb8 26.Re2 Nec6+–) 22...Qe5 (22...Qg6 23.Qh4 h5 24.Nd5+–) 23.Qf3 (better is 23.Qg7 Rf8 24.Nf4 Qg5 25.Qf8 Kf8 26.Ne6 Ke8 27.Ng5 fg5 28.Bf7 Kf8+–) 23...a5 (23...Qg5 24.Qf4 h6 25.Nd5 Nd5 26.ed5+–) 24.Rab1 (24.Nf4 ab4 25.ab4 Ng6+–) 24...a4 (24...Qg5 25.Nd5 Ne5 26.Nc7 Kd7 27.Be5 Qe5 28.Ne6+–) 25.Ba2 (25.Bd5 Ng6 26.Nb5 Qe7+–) 25...Nd8 (25...Qg5 26.h4 Qh4 27.Nb5+–) 26.Nd1 (better is 26.Nd5!? Qd6 27.Qh5 Ng6+–) 26...Qc7 (26...Qe4 27.Qh5 g6+–) 27.Ndc3 (better is 27.Qh5 Ng6 28.Nf2 Nf7+–) 27...Qb6?? (27...Qe5 28.Nd5 Qd6 29.Qh5 Ng6 30.Nef4 Bd5 31.Bd5+–) 28.Nd1 (28.Qg3 Bc6 29.Qg7 Qe3 30.Kh2 Ng6+–) 28...f5?? (28...Qc7 29.Nd4 Bc6+–) 29.Qg3 (29.Bg7 Be4 30.Qg3 Rf8+–) 29...Be4 (29...Rc8 30.Bg7 Rc2 31.Rb2 Rb2 32.Nb2+–) 30.Qg7 (better is 30.Bg7 Rf8 31.Bf8 Kf8+–) 30...Rg8 (30...Ng6+–) 31.Bg8 Ng8 32.Qg8 Kd7 33.Qh7 Kc8 34.Qh8 (better is 34.Ng3 Rb7 35.Qh4 Bc2+–) 34...Bc2 35.Qc3 (35.Rc1 Kb7 36.Rc2 Nc6 37.Qg7 Ka8+–) 35...Qc7 36.Qc7 Kc7 37.Rc1 (37...Kd7 38.Rc2+–) 1–0. coachwright – Woodahbase, Live Game Caissa's Web, 2004.

5.Nf3 Nf6 6.Ne5+= Ne5 7.Be5 Bd6 8.Bd6 cd6 (8...Qd6!? 9.Be2 0–0+=) 9.d4 0–0 10.Nd2 Ne4 (10...Bg4 11.Be2 Be2 12.Qe2+/–) 11.Bd3+– Nc3 (11...Bf5+–) 12.Qc1 (better is 12.Qh5!? f5 13.0–0+–) 12...Qg5+/– 13.0–0 (better is 13.Rg1!?+/–) 13...Bh3= 14.g3 Bf1 15.Qf1 b5 16.Nf3 Qh6 (16...Qh5 17.Nh4+=) 17.Qe1 (better is 17.Bf5=) 17...Rfe8?? (better is 17...Rfc8+=) 18.Qc3+– Rac8 19.Qd2 Re6 20.Bf5 Rf6 (20...Qf6 21.Qd3 g6 22.Be6 fe6+–) 21.Bc8 Rf3 22.Bg4 (22.Ba6 Rf5+–) 22...Rf6 23.Rd1 (23.Qc3!? g5+–) 23...Qg5 24.Bh3 (24.Bc8 a5+–) 24...Qh5 25.Bg2 (25.Bc8 a5+–) 25...Rh6 26.h3 g5 (26...Qf5 27.Qd3 Qc8 28.Ra1+–) 27.g4 Qh4 (27...Qg6 28.Qc3+–) 28.Qe2 (28.Qc3 Kg7 29.Qc6 Rf6+–) 28...Rf6 29.Rf1 (29.a4 ba4 30.Ra1 Kg7+–) 29...Rh6 (29...h5 30.gh5 Rh6 31.Qg4+–) 30.e4 (30.a4 ba4 31.Qa6 Kg7+–) 30...de4 (30...Re6 31.e5+–) 31.Qe4 Re6 (31...Kg7 32.Qb7 d5 33.f4+–) 32.Qa8 Kg7 33.Qa6 h5 34.f3 (34.gh5 Qd4 35.Qb5 Qf4+–) 34...hg4 (34...Re3 35.Qd6 Re2 36.Qb8+–) 35.fg4 Qg3 36.Qb5 Qe3 37.Kh1 Qd4 (37...Rh6 38.Kh2+–) 38.Qg5 Rg6 39.Qf5 Qc4 (39...Rf6 40.Qf6 Qf6 41.Rf6 Kf6 42.a4+–) 40.Qd3 (better is 40.Bd5 Qc3 41.Qf7 Kh6 42.Qf8 Qg7+–) 40...Qe6 (40...Qd3 41.cd3 Re6 42.Rf7 Kf7 43.Bd5+–) 41.Qd4 (better is 41.Bd5!? Qe8 42.Rf7 Qf7 43.Bf7 Kf7 44.Qg6 Kg6+–) 41...Kh7 (41...f6 42.c4+–) 42.Be4 d5 (42...Qe7 43.c4 Kg8 44.Bg6 fg6 45.a4+–) 43.Bg6 (better is 43.Bd5 Qd7 44.Rf7 Qf7 45.Bf7 Rh6+–) 43...Qg6 (43...fg6 44.a4 g5 45.a5 Qe4 46.Qe4 de4 47.a6+–) 44.Qd3 Qd3 45.cd3 Kg7 46.Rf5 (46.b5 f6+–) 46...Kg6 47.Rd5 (47.b5 Kh6 48.b6 Kh7 49.b7 Kh6 50.b8Q Kg7 51.Rg5 Kh6 52.Qg8 f5 53.Qg6) 47...Kf6 48.Rd7 Ke6 49.Rf7! Kf7 50.a4 Ke7 51.a5 Kd7 52.a6 Kc7 53.a7 (better is 53.b5 Kb6+–) 53...Kb7 54.g5 Ka7 55.g6 Kb7 56.g7 Kc7 57.g8Q Kd6 58.Qc4 Ke7 59.b5 Kd7 60.b6 Kd6 (60...Ke7 61.b7 Kf6 62.Qa6 Ke5 63.b8Q Kd4 64.Qf4 Kc3 65.Qac4 Kb2 66.Qfc1) 61.b7 Kd7 (61...Ke5 62.b8Q Kf6 63.Qd6 Kg7 64.Qcc7 Kg8 65.Qdd8) 62.b8Q Ke7 63.Qb7 Kf8 (63...Kf6 64.Qbf7 Ke5 65.Qfe6) 64.Qcc8 1–0. Fournier,Frederic – pesaj, Active, 2008.

5.Nf3 Bg4 6.Be2 Bd6 7.0–0 Nf6 8.c4 (8.d4 e4 9.Ne5 Be2 10.Qe2 a5=) 8...Bf3 (better is 8...dc4!? 9.Qc2 Qd7+=) 9.Bf3+= e4 10.Be2 (10.cd5 Nd5 11.Be4 Bh2 12.Kh2 Qh4 13.Kg1 Qe4=) 10...0–0 (10...dc4 11.f4+=) 11.c5 Be7 (11...Be5 12.Be5 Ne5 13.d4 ed3 14.Bd3=) 12.Nc3 b6 13.cb6 cb6 14.d3 Qd6 15.de4 de4 16.Qd6 Bd6 17.b5 ab5 18.Nb5 Be7 19.Rfc1 Na5 20.Rc7 Bc5 (20...Nd5 21.Rc2=) 21.Bd4 (21.Rd1!?+/–) 21...Nd5= 22.Bc5 bc5 23.Rc5 Nb3 24.Rd5 Na1 25.Re5 Rfc8 26.Re4? Nb3?? 27.g3 g6 28.Nd6 Rc1 29.Kg2 Ra3 30.Re7 Nc5 31.Rf7 Nd3 32.Bf3?? Ne5?? 33.Bd5?? Nf7–+ 34.Bf7 Kf8 35.Bc4 Raa1 36.Nb5?? Rc4 37.Nd4 Ke7 38.Kf3 Kd6 39.Nb3 Ra2 40.h4 Rcc2 41.Nd4 Rf2 42.Ke4 Kc5 43.Ne6 Kd6 44.Nf8?? Rf8–+ 45.g4 Ra4 46.Kd3 Rg4 (46...Rg4 47.h5 gh5 48.Ke2 h4 49.e4 h3 50.Kd3 Rf3 51.Kc4 Re4 52.Kb5 Rb3 53.Ka5 h2 54.Ka6 Ra4#) 0–1. Neumann,Frank – Ventura,Bob, RN–2012–0–00471, 2012.

5.Nf3 Bg4 6.Be2 Bf3 7.Bf3 e4 8.Be2 Nf6 9.0–0 Be7 10.f3 0–0 11.c4 dc4 12.Bc4 ef3 13.Rf3 Qd6 14.Nc3 (14.Qc2 Rae8=) 14...Ne5 15.Bf7?? (better is 15.Rf4=) 15...Rf7–+ (worse is 15...Kf7 16.Rf5 Kg8 17.Ne4 Ne4 18.Re5–+; worse is 15...Nf7 16.Qb3–+) 16.Rf1 Nd3 17.Bc1 Rd8 18.Qb3 Nc1 (18...Rdf8 19.Ne2–+) 19.Rac1 Rdf8 (19...Qd2 20.Ne4 Qd5 21.Qd5 Rd5 22.Ng3–+) 20.Rcd1 Ng4 21.g3 Bf6 (21...Qh6 22.h4 Bh4 23.Kg2–+) 22.Nd5? (22.Rf4 Ne5 23.Ne4 Qd3 24.Nf6 gf6 25.Rg4 Kh8 26.Qd3 Nd3–+) 22...c6 (22...Be5 23.e4 Bd4 24.Ne3–+) 23.Nf4 Re8 24.h3 Ne5 25.Nh5 Qe6 26.Qc2? (26.Qe6 Re6 27.d3–+) 26...Qh3 27.Nf6 Rf6 28.Rf6 Qg3 29.Kh1 Qh4 (29...gf6?! 30.Rg1 Qg7 31.Rg7 Kg7 32.Qf5+=) 30.Kg2 Qf6 (30...Qf6 31.Qb3 Kh8–+) 0–1. mr5reasons1 (1630) – all530728 (1690), Gameknot.com, 2013.

5.Nf3 Bg4 6.Be2 Bf3 7.Bf3 e4 8.Be2 Qg5 9.0–0 Nf6 10.c4 Rd8 11.Bf6 Qf6 12.Nc3 dc4 13.Ne4 Qg6 14.Qc2 b5 15.f4 f6 (15...Be7!?+=) 16.d3 f5 17.Nf2 cd3 18.Bd3 Rd5 19.Rac1 Kd7? (better is 19...Ne7+–) 20.e4 Rd4 21.Rfd1 fe4 (21...Qe6+–) 22.Be4 Rd1 (22...Qd6 23.Bc6 Kd8 24.Rd4 Qd4 25.Rd1+–) 23.Rd1 (23.Rd1 Kc8 24.Bg6+–) 1–0. marekt – whodini, internet, 2014.

5.f4 e4 6.c4 (6.Nc3 Nf6=+) 6...d4 (6...Nf6 7.cd5 Nd5 8.Nc3=+) 7.ed4 (7.b5 Nce7 8.ba6 Ra6 9.ed4 Nf5=) 7...Nd4=+ 8.Ne2 (8.d3 e3 9.Nf3 c5=) 8...Ne2 (8...Bg4 9.Bd4 Be2 10.Qe2 Qd4 11.Nc3=+) 9.Be2= f5 (9...Qh4 10.g3 Qh3 11.Bf1=) 10.0–0 (10.Bh5 Ke7+=) 10...Nf6= 11.Bh5 (11.d4 Be7=) 11...g6 12.Be2 Bg7 13.d3 (13.d4 0–0=) 13...0–0 14.de4 (14.Qc2 Be6=) 14...Ne4 15.Bg7 Kg7 16.Qd8 (16.Qd5 Qf6 17.Ra2 Rd8–/+) 16...Rd8=+ 17.Bf3 Be6 (17...a5 18.b5=+) 18.c5 (18.Re1 Bc4 19.Be4 fe4=) 18...Bc4 (18...Rd3 19.Re1 Bd5 20.Rc1–/+) 19.Re1 Nd2?? (better is 19...Rd4=+) 20.Nd2 Rd2 21.Re7 Kh6 22.Rc7 Rad8 23.Re1 Rd1?? 24.Bd1 Bd5 25.Bf3 Bf3 26.gf3 Rd3 27.Ree7 g5 28.Rh7 Kg6+– 29.Rhg7 Kf6 30.fg5 Ke5 31.Rb7 Ra3 32.Rbe7 Kf4 33.Rd7 Kf3 34.Rgf7 Ra1 (35.Rd1 Rd1#) 0–1. wach – jakesh, Caissa.com, 2004.

5.b5 ab5

6.Bb5 e4 7.c4 Ra5 (7...Qg5!? 8.g3 dc4 9.Bc4 Qg6+=) 8.Bc3= Ra8 9.d3 Nf6 (9...Qg5 10.g3 dc4 11.Bc6 bc6 12.de4=) 10.cd5 (better is 10.de4!? de4 11.Qd8 Kd8 12.Bc6 bc6 13.Ne2+=) 10...Qd5+= 11.Bc4 Qd7 (better is 11...Qg5!? 12.g3 Ne5+=) 12.Bf6+= gf6 13.de4 Qd1 (13...Bb4 14.Nd2 Ra3 15.Ra3 Ba3 16.Ne2=) 14.Kd1 Ne5 15.Be2 Bc5 16.Nf3 Ng6 (16...Rg8 17.g3+=) 17.Nd4+/– 0–0 18.Bf3 (18.Kc2!?+/–) 18...Rd8+= 19.Ke2 b6 (19...Bd4 20.ed4 Rd4 21.Rc1+=) 20.Nb3 (20.Nc3 Ba6 (20...Ba3? 21.Ndb5+–) 21.Ke1 Ne7+=) 20...Be7 (20...Bd6 21.Rd1=) 21.Rd1+= Ba6 22.Ke1 Rd1 23.Kd1 Rd8 24.Ke1 Ne5 25.Be2 Bb7 26.f3 c5 27.N1d2 Bc6 28.Nc4 (28.a4 Nd3 29.Kf1 f5+/–) 28...Nc4 29.Bc4 b5 30.Be2 (30.Na5 Be8 31.Bd5 Rd6+/–) 30...c4 (30...Ra8 31.Kd1+=) 31.Nd4+/– Bd7 32.a4 Bb4 33.Kf2 Ra8 34.Nc2 Bc3 35.Ra2 (better is 35.Rd1!? Be8 36.ab5 Bb5 37.Nd4+–) 35...Ra4 36.Ra4 ba4 37.Bc4 Bb2 38.Nb4 a3 39.Ke2 Be6 40.Kd3 Bd7 (40...f5 41.ef5 Bf5 42.e4+/–) 41.Kc2+/– Be5 42.f4 Bd6 (42...Ba4 43.Kb1 Bd6 44.Nd5+/–) 43.Nd5 (43.Kb3!?+/–) 43...Kg7+= 44.h3 Bc5 45.g4 White prepares f5 45...Be6 46.Kd3 Kg6?? (better is 46...Bd5 47.ed5 f5=) 47.f5+– Bf5 48.ef5 Kg5 49.e4 h5 (49...Bd6 50.Kc3+–) 50.Ke2 (better is 50.gh5 Bf2+–) 50...hg4 51.hg4 Kg4 (51...Bd6 52.Kf3+–) 52.Nf6 Kf4 53.Bd5 (53.Kd3 Bd6 54.Bf7 Kg5+–) 53...Ke5 (53...Bd4 54.Nd7 f6+–) 54.Nd7 Kd6 55.Nc5 Kc5 56.Kd3 (56.Bf7!? Kd4 57.Bb3 Ke5+–) 56...f6 57.Kc3 Kd6 58.Kb3 Ke5 (58...a2 59.Ka2 Kc5+–) 59.Ka3 Kd6 60.Kb4 Ke5 61.Kc5 Kf4 62.Kd6 Kg5 63.Ke6 1–0. Fournier,Frederic (1605) – TANK2, ChessOK.com, 2012.

6.Bb5 e4 7.c4 dc4+= 8.Bc4 (8.Bc6 bc6 9.Nc3 Qd3+=) 8...Nf6 (8...Qg5 9.Qb3 Qg2 10.Bf7 Ke7 11.Bg8 Rg8 12.Qg8 Qh1 13.Ke2 Bg4 14.Kf1–+) 9.Qb3 (9.Qc2 Be6=) 9...Qe7+= 10.Qc2 (10.Bb5 Be6 11.Bc6 bc6+=) 10...Ne5–/+ 11.Be2 c6 (11...Qd6 12.Qc3 Nd3 13.Bd3 ed3 14.Qe5 Be6 15.Qd6 Bd6 16.Bf6 gf6 17.Nf3–/+) 12.Nc3 (12.Qc3 Ned7+=) 12...Qc5 (12...Bf5 13.Ra2–/+) 13.Rc1 (13.f4 ef3 14.Nf3 Nf3 15.Bf3 Qd6=) 13...Bf5–/+ 14.Qb3 Qa7 (14...Qe7!?–/+) 15.Nb5= Qb8 16.Nd4 Bg6 (16...Bc8 17.d3=) 17.f4 ef3 18.Ngf3 Bd6 19.Ne5 Be5 20.Nc6 (20.Nf3!? Bb2 21.Qb2=) 20...bc6–/+ 21.Qb8 Bb8 22.Rc6 0–0 (22...0–0 23.Bf6 gf6+=; 22...Ke7 23.Bf3 Bd6 24.Bf6 gf6 25.Rd6 Kd6 26.Ba8 Ra8 27.Rf1–+) 0–1. Gross – Piwowarski, tt, 1991.

6.Bb5 e4 7.d3 Bd7 8.de4 de4 9.Nc3 Nf6 10.Nge2 Bd6 11.Ng3 0–0 (better is 11...Be5!?=) 12.Nge4+/– Ne4 13.Ne4 Na7 (13...Be5 14.Be5 Ne5 15.Bd7 Nd7 16.0–0+=) 14.Bd7 (14.Qd4 f6 15.Nd6 cd6 16.Bc4 Kh8 17.Qd6 Bf5+–) 14...Qd7+/– 15.Nd6 Qd6 16.Qd6 (16.Qg4 Qh6+–) 16...cd6 17.Ke2 Nb5 (17...Rfc8 18.Rhc1+/–) 18.c4 Nc7 19.Rhd1 Rfd8 20.Rd2 Ne8 21.Rad1 Rac8 22.Rc2 b5 (22...Rc6!?+/–) 23.Rdc1 bc4 24.Rc4 Rb8 25.Bd4 d5 26.Rb4 Ra8 27.Bb2 (27.a4 Ra6+–) 27...Rdb8 28.Rb8 Rb8 29.Bd4 f6 30.Rc5 Ra8 31.Rd5 Ra3 32.Rd8 Kf7 33.Bc5 Rc3 34.Bb4 Rc2 35.Kf3 Rb2 36.Bd6 Rb7 37.g3 Nd6 38.Rd6 Re7 39.Kg2 Kg6 40.h4 h5 41.Rd5 Kh6 42.Rd4 1–0. Fournier,Frederic (1740) – ale625057851 (1700), ChessOK.com, 2012.

6.Bb5 e4 7.Ne2 Nf6 =.

6.Bb5 f6 7.Nf3 Bd6 8.0–0 (8.d4 e4 9.Nfd2 f5=) 8...Bd7 9.d3 Nge7 10.c4 d4 (10...Na5!?=) 11.ed4+= Nd4 12.Bd7 (12.Bd4?! ed4 13.Bd7 Qd7=) 12...Qd7 13.Nbd2 (13.Nd4 ed4 14.c5 Bf4+/–) 13...Nec6 (13...Ne6 14.Ne4=) 14.h3 (14.Nd4 ed4 15.Re1 Kd8+=) 14...0–0 (14...Bc5 15.Ne4 Nf3 16.Qf3+=) 15.Nb3 (15.Bd4 Nd4 16.Nd4 ed4=) 15...Be7 (better is 15...Ne6+=) 16.Qd2?? (16.Nbd4 ed4 17.Re1 Rfe8=) 16...Rfe8 (better is 16...Nb3 17.Qe3 Na1 18.Ra1 Rfd8–+) 17.Nbd4 (17.Bd4 Nd4 18.Nbd4 ed4=) 17...Nd4 18.Nd4 ed4 19.Rfe1 c5 20.Re2 Bd6 21.Rae1 Re3?? (better is 21...Re5+=) 22.Re3 (better is 22.fe3 Bg3 23.Rb1+–) 22...de3+/– 23.Qe3 (worse is 23.Re3 Bf4 24.d4 cd4–/+) 23...b6 (23...Qf7 24.Re2+/–) 24.Qe6 Qe6 25.Re6 Bc7 (25...Rd8 26.Kf1+/–) 26.Rc6 Bd8 27.d4 cd4 28.Bd4 Ra3? (better is 28...Be7+/–) 29.Rc8+– (29.Bb6?! Bb6 30.Rb6 Kf7+–) 29...Ra4 30.Bb6 Kf7 (30...Rc4 31.Rd8 (31.Rc4?! Bb6 32.Rb4 Bc5+–) 31...Kf7 32.Rd7 Kg6 33.Kh2+–) 31.Bd8 (worse is 31.Rd8 Rc4 32.Rd7 Kg6+–) 31...Ra1 32.Kh2 Rc1 (32...Ke6 33.Bb6+–) 33.Bb6 Ke7 (33...Rb1 34.Be3+–) 34.c5 Kd7 (34...Rb1 35.Rc7 Kf8 36.Ba7+–) 35.Rd8 (better is 35.Rc7 Ke6 36.Rg7 h6+–) 35...Kc6 (35...Ke7 36.Rh8+–) 36.Rd6 Kb7 (36...Kb5 37.Rd7 g5 38.Rh7+–) 37.Rd7 Kc8 (37...Kc6 38.Rg7 Rc2 39.Kg3+–) 38.Rg7 h6 (38...h5 39.Rh7+–) 39.Rg6 f5 (39...h5 40.Rf6 Kd7 41.Rh6+–) 40.Rh6 (40.Rh6 Kb7 41.Rf6+–) 1–0. Fournier,Frederic – jathuel, Active, 2007.

6.Bb5 Bd6

7.Nc3 Bd7 8.Nd5+= Nce7 9.Bd7 Qd7 10.Nf3?? (better is 10.Ne7 Ne7 11.d3+=) 10...Nd5–+ 11.Ne5 Be5 12.Be5 f6 13.Bb2 Nge7 14.0–0 0–0 15.c4 Nb6 16.c5 Nc4 17.Bc1 (17.Qc2 Ra4–/+ (worse is 17...Nd2 18.Rfd1+=)) 17...c6 (better is 17...Qd3!?–+) 18.Qb3 Qe6?? (better is 18...Qd5–/+) 19.d3+/– Qe5? (better is 19...Ra5+/–) 20.Qc4+– Nd5 (20...Kh8 21.Rb1 Ra7+–) 21.e4?? (better is 21.Rb1 Qc3 22.Rb7 Qc4 23.dc4+–) 21...Qa1+/– 22.ed5 cd5 23.Qd5 Kh8 24.Qb7 Rad8?? 25.Bb2 Qa2+= 26.Ra1 Qe6 27.d4?? Rf7?? 28.Qb6 Qe2?? 29.Qd8 (29.Qd8 Qe8 30.Qe8 Rf8 31.Qf8) 1–0. Fournier,Frederic – Grayknight, Active (3/5), 2005.

7.Nc3 Nf6!? +=.

7.Nf3 f6 8.d3 Nge7 9.Nbd2 (9.c4 dc4 10.Bc4 Na5=) 9...0–0 10.0–0 Bg4 11.h3 Bh5 12.Qc1 (12.c4 Bf7+=) 12...f5 Black intends e4 (better is 12...Nb8!? 13.g4 Bg6–/+) 13.c4= d4?? (13...dc4 14.Ng5 Qd7 15.Qc4 Kh8 16.f4 ef4 17.Ne6+=) 14.ed4?? (14.c5 de3 15.fe3 Nd5 16.cd6 cd6+–) 14...e4?? (better is 14...Nd4 15.Nd4 ed4=) 15.de4 (15.Ng5 ed3 16.Ne6 Qc8 17.Nf8 Qf8+–) 15...fe4 (15...Bf3 16.gf3 Bf4+/–) 16.Ne5 (16.Ng5!? e3 17.fe3 Ng6+–) 16...e3 (16...Be5!? 17.Bc6 Nc6 18.de5 Nd4=) 17.fe3+/– Rf1 18.Qf1 (better is 18.Nf1 Be5 19.de5+–) 18...Be5+= 19.de5? (better is 19.Qf2 Bf6 20.Ne4=) 19...Qd2–+ 20.Bc1? (20.Qc1 Qe2 21.Bc3–+) 20...Qc3 21.Rb1 Rf8 (21...Rf8 22.Qf8 Kf8–+) 0–1. Fournier,Frederic (1820) – estoykov (1755), Active, 2011.

7.Nf3 Qf6 8.c4 dc4 9.Bc6 bc6 10.Qc2 +=.

7.Nf3 Bg4 8.h3= Bf3 9.Qf3 Nge7 10.Nc3 Bc5 11.Bc6 bc6 12.0–0 =.

7.Nf3 Bg4 8.h3 Bf3 9.Qf3 Nf6 10.0–0 0–0= 11.d3 (11.Bc6 bc6 12.Ra2 Qd7+=) 11...Qe7 Black plans e4 (11...Ne7 12.d4 e4 13.Qd1–/+) 12.Nd2 (12.c4 Na7=) 12...Rfd8 (12...Ba3 13.Ba3 Ra3 14.Bc6 bc6 15.Qf5 Ra1 16.Ra1+=) 13.c4 dc4 (13...Ba3 14.Bc6 bc6 15.Ba3 Ra3 16.Ra3 Qa3 17.Qf5–/+) 14.Nc4 (14.Bc6 c3 15.Bc3 bc6+=) 14...e4 15.de4 Ne4 16.Nd6 Nd6 (16...Rd6!? 17.Rfd1 Qe6+=) 17.Bc6+/– bc6 18.Qc6 Rdb8 19.Bd4 Nb5 20.Bc5 Qf6 (better is 20...Qe5!?+/–) 21.Qf6+– gf6 22.Rfb1 c6 (22...Nc3 23.Rb8 Rb8 24.Bd4 Ne2 25.Kf1 Nd4 26.ed4+–) 23.a4 Nc3 24.Rb8 Rb8 25.a5 Ne4 26.Bb6 Nd6 (26...Kf8+–) 27.Bc7 (27.Bc7 Ra8 28.Bd6+–) 1–0. Fournier,Frederic – ecureuil1237 (1670), Active, 2007.

7.Nf3 Bg4 8.h3= Bf3 9.Qf3 Nf6 10.Nc3 e4+= 11.Qf5 (better is 11.Bc6 bc6 12.Qe2+=) 11...0–0 (better is 11...g6 12.Qg5 h6+=) 12.Nd5+= Ne5 (better is 12...Nd5!? 13.Qd5 Be5 14.Qd8 Rfd8+/–) 13.Nf6+– (13.Be5?! Be5 14.Qe5 Qd5 15.Qd5 Nd5+/–) 13...Qf6 14.Qf6 gf6 15.0–0 (15.f4 Ng6+–) 15...c6 (15...Ra5 16.Be2+/–) 16.Be2+– b5 17.d4 ed3 (17...Nd7 18.Rfd1 Rfb8 19.d5+–) 18.cd3 (18.Bd3?! Ra4+/–) 18...c5 19.f4 Nd7 20.Rfc1 f5 21.g3 f6 22.Kf2 Rfe8 23.d4 c4 24.Rc3 Ra5 25.a4! Rea8 26.Rcc1?? Ra4= 27.Ra4 Ra4 28.Ra1 Ra1+= 29.Ba1 Nb6 30.Bd1 b4 31.Ke2 b3+= 32.Bb2 Bb4 33.g4 fg4 34.hg4 Na4 35.Bc1 b2 36.Bb2 Nb2 37.Ba4?? Na4 (37...Na4 38.e4 c3–+) 0–1. Fournier,Frederic – apollo16, kurnik.com, 2009.

7.Nf3 Bg4 8.h3 Bf3 9.Qf3 Nf6 10.c4 e4 11.Qf5 Kf8 12.cd5 Ne7 13.Bf6 Nf5 14.Bd8 Rd8 +/–.

7.f4 ef4? 8.Bg7 fe3 9.Nf3 +– (9.Bh8 Qh4 10.g3 Bg3 11.Ke2 Qe4=).

7.f4 f6 =.

7.Nf3 Qe7

8.0–0 Bg4 9.h3 Bd7 10.d3 +=.

8.0–0 Bg4 9.h3 Bh5 10.d3 Nf6 11.Nbd2 0–0 12.Bc6 bc6 13.c3? (better is 13.c4+=) 13...e4–+ (13...Ba3?! 14.Ba3 Ra3 15.Ra3 Qa3 16.g4+=) 14.de4 de4 15.g4 Ng4 (15...ef3?! 16.gh5 Rfb8 17.Bc1–/+; 15...Ba3?! 16.Ba3 Ra3 17.Ra3 Qa3 18.Nh4+=) 16.hg4 Bg4 17.Kg2 ef3 18.Nf3 Ra5 (18...Qe4 19.Rg1 Rfb8 20.Bc1–+) 19.Rg1 (19.Qd4 Qe6 20.Rh1–+) 19...Rf5 (19...Ba3?! 20.Qd4 Be6 21.Ba3 Ra3 22.Kh2–+) 20.Qd4 (20.c4 Qe4 21.Kf1 Rf3 (21...Qf3?! 22.Qf3 Rf3 23.Rg4=; 21...Bf3?! 22.Rg7 Kh8 23.Rg4 Qe5 24.Be5 Be5 25.Qd3 Bg4 26.Rb1–/+) 22.Rg4 Qg4–+) 20...Bf3 (20...Rf3?! 21.Qg4 Rf6 22.Kf1–/+) 21.Kf1 Bc5 (better is 21...Rg5 22.Rg5 Qg5–+) 22.Qg7 1–0. Fournier,Frederic – Guest1140170, Partie amicale, 3m + 0s, 2007.

8.0–0 Bg4 9.h3 Bh5 10.Be2 Nf6+= 11.d3 0–0 12.a4 Rad8 13.Nc3 Rfe8 14.Nb5 h6 15.Nd6 Qd6 (worse is 15...cd6 16.Ne5 de5 17.Bh5+=) ½–½. Andrenko,Irina – Samar,Anna, UKR games U16 B4 2nd, 2004.

8.0–0 Bg4 9.h3 Bh5 10.g4!? Bg6 11.d4 +=.

8.d3 Bd7+= 9.Nbd2 Nf6 10.0–0 0–0 11.c4 dc4 12.Nc4 e5 seems the pivot of the position 12...Bg4 (12...Na5 13.Nd6 cd6 14.Bd7 Qd7 15.Ng5=) 13.Nd6 (better is 13.Bc6 bc6 14.Nce5 Bf3 15.Nf3 Ba3 16.Ba3 Ra3 17.Ra3 Qa3 18.Qc2+/–) 13...cd6= 14.h3 Bf3 (14...Be6 15.Qd2=) 15.Qf3 Rac8 (15...Na7 16.Bc4=) 16.Rac1 Qd7 17.d4 (17.a4 Qe6+=) 17...e4 (17...Nd4!? 18.ed4 Qb5 19.de5 Rc1 20.Bc1 de5+=) 18.Qe2 (18.Qg3 d5=) 18...d5 19.a4 Qe6 20.Ba3 Rfd8 21.Qb2 Na5 22.Bb4 Nc4 23.Bc4 (23.Qb3 Rc7=) 23...Rc4 (23...dc4 24.Bc5 Nd7 25.Rfd1+=) 24.Rc4= dc4 25.Rc1 (25.Bc5 Rb8 26.Rc1+=) 25...Qd5 (25...b6 26.Bc3+=) 26.Qc2 (26.Be7 Rc8+=) 26...Rc8= 27.Bc3 (27.Bc5 Nd7 28.a5 Ra8+=) 27...Nd7 (27...b6 28.Ra1+=) 28.Qb2 (28.Rb1 Qc6=) 28...h6 (28...Ra8 29.Rb1 b6 30.Qb4=) 29.Rb1 Rb8 (29...b6 30.Qb5 Qb5 31.Rb5=) 30.Qb5+= Qb5 31.Rb5 (worse is 31.ab5 Nb6+=) 31...b6 32.a5 (better is 32.f3!?+=) 32...ba5+= 33.Rb8 Nb8 34.Ba5 Nc6 35.Bc3 f5 (35...Ne7 36.Kf1–/+) 36.Kf1 (36.d5 Na7 37.Kf1 Nb5=) 36...Kf7 37.Ke1 Ke6 38.Kd2 g6 39.Kc2 Kd5 40.Kb2 Na7 (40...f4 41.Bd2+=) 41.Ba5 Nb5 42.Bb4 h5 43.g3 (better is 43.h4+=) 43...Nd4 (better is 43...g5–/+) 44.ed4+= Kd4 45.Kc2 g5? (45...h4!? 46.Bc3 Kc5+/–) 46.Bc3 (46.Bd2 g4 47.Be3 Ke5 48.hg4 hg4+– (worse is 48...fg4 49.Kd2+–)) 46...Kd5 47.Bf6 (47.Bd2 Kc5+–) 47...g4 48.h4 (48.hg4 fg4 49.Kc3 Kc5+–) 48...Kc5 (better is 48...f4 49.Bc3 e3 50.fe3 fg3–+ (50...fe3? 51.Kd1+–)) 49.Kc3 Kd5 50.Bd4 f4? (50...Ke6 51.Kc4 Kd6+–) 51.gf4 e3 52.Be3 (52.fe3 g3 53.f5 Ke4=) 52...Ke4 53.Kc4 Kf3 (53...Kf5+–) 54.f5 g3 55.f6 (better is 55.fg3 Ke3 56.f6+–) 55...g2 56.f7 g1Q 57.f8Q Ke2 58.Qf5 Qd1 (58...Qg8 59.Kc3 Qe8+–) 59.Qh5 Ke1 60.Qd1 Kd1 61.h5 1–0. Fournier,Frederic – ronda2006, Active, 2008.

8.d4 e4 9.c4 ef3 10.Qf3 Qg5 11.Qd5 Qd8 +=.

5.c4 d4

6.b5= ab5 7.cb5 Na5 8.Qc2 Be6–/+ 9.ed4 Nb3 10.de5 Na1 11.Ba1 Ba3 12.Nf3 Ne7 (12...Bb4 13.Bb2–/+) 13.Bd3 (13.Ng5 Bb4 14.Ne6 fe6–/+) 13...h6 (13...Bc5! 14.Bb2 Ra2–/+) 14.0–0 0–0 (14...Bb4 15.Nc3–/+) 15.Nc3 (15.Na3 Ra3 16.Bh7 Kh8+=) 15...Qd7 16.Be4 (16.Rb1 Nd5 17.Nd5 Bd5 18.Bh7 Kh8–/+) 16...Bf5 (16...Ra7 17.Rb1–/+) 17.Bf5 Qf5 (17...Nf5 18.Re1–/+) 18.Qb3 (18.Qf5 Nf5 19.Nd5 c6–/+) 18...Rfd8 19.d4 Ng6 20.Ne2 (20.Na4 Be7 21.Nc5 Bc5 22.dc5 Nf4–+) 20...Nf4 (20...Qd7 21.Re1–/+) 21.Ng3 (21.Nf4 Qf4 22.Bb2 Bb2 23.Qb2 Rd7–/+) 21...Qd3 22.Qc3 Qc3 23.Bc3–/+ Nd5 24.Bd2 Bb2 25.Ne4 Nb6 26.Be3 Rd5 27.Nc5 Na4 28.g3 Nc5 29.dc5 Ra5 30.b6 c6 31.Kg2 Ra1 32.Ra1–/+ Ba1 33.Kh3 Kf8 34.Kg4 Be5 35.Ne5 Re5 36.Kf4 Rd5 37.h4 Ke7 38.Ke4 h5 39.Kf4 Ke6 40.Ke4 g6 41.Kf4 f6 42.Ke4 Re5 43.Kd4 f5 44.Bf4?? Re4 45.Kc3 Kd5 46.Be3 Rc4 47.Kd3 Rc5 48.Bc5 Kc5 49.Ke3 Kb4 (49...Kb4 50.Kd2 Kb5–+) 0–1. Reimer,Karl – Finzer,Lothar, PF–op Eisenberg, 1993.

6.b5= ab5 7.cb5 Na5 8.Nf3!? Be6 9.Ne5 +=.

6.b5 ab5 7.cb5 Na7 8.ed4 ed4 9.Bd3 Bc5 10.Qf3 Nf6 11.Ne2 Bg4 12.Qf4 0–0 13.f3 (13.Nd4? Re8 14.Kf1 h6–+) 13...Be6 14.Nd4 Bd4 (14...Re8 A) 15.Ne6?? Qd3 (15...Re6?! 16.Be2–+) 16.Kd1 Re6 (worse is 16...fe6 17.Bf6 gf6 18.Nc3–+) 17.Bf6 Qb3 (17...gf6 18.Nc3 Be3 19.Qg4 Kh8 20.Ra2 Nb5 21.Qb4 Nc3 22.Qc3 Qb1 23.Qc1 Qa2 24.Qc2–+) 18.Kc1 Rf6–+; B) 15.Kf1+=) 15.Bd4= Re8 16.0–0 Bd7?? (better is 16...Nh5 17.Qe3 Nb5+=) 17.Bf6+– Qf6 18.Qf6 gf6 19.Nc3 c6 20.Ne4 Kg7 21.Nc5 Bc8 22.b6 Nb5 23.Bb5 cb5 24.Rfb1 Re5 25.d4 Rd5 26.Rb4 Rb8 27.Kf2 Bd7 28.Re1 Bc6 29.Re7 Kg6 30.h3 Ra8 31.Re3 Rad8 32.Re4 f5 33.Rf4 Ra8 34.Rb3 Rad8 35.Ke3 h6 36.g4 Kg5 37.gf5 Re8? 38.Re4 Red8 39.h4 Kf5 40.Rf4 Kg6 41.Rb1 Re8 42.Ne4 f5+= 43.Rg1 Kh7 44.Kd3 fe4 45.fe4 Rd7 46.d5 Red8 47.Ke3 Re7? 48.Kd4 Bd7 49.e5 Bh3 50.Rg3 Be6 51.d6 Red7 52.Rf6+– Bf7 53.Kc5 Bc4? 54.Kb4 Be2? 55.Rc3 h5 56.Rc7 Bc4? 57.e6 Be6 58.Re6 Kg8 59.Rd7 Rd7 60.Kb5 Kf7 61.Rh6 Kg7 62.Rh5 Rd6 63.Rc5 Kf6 64.a4 Rd7 65.h5 Rd6 66.a5 Rd7 67.a6 ba6 68.Ka6 Re7 69.b7 Re6 70.Ka7 Re7 71.Kb6 (71.Kb6 Rb7 72.Kb7+–) 1–0. combijack (1820) – gameofpawns, gameknot.com, 2011.

6.d3 Nf6 7.e4 ½–½. Rancic,Danijela (1870) – Cvetkovic,Zoran, Nis SER, City Ch, 2012.

6.ed4 Nd4 7.Nf3 Bf5 8.Bd4 ed4 9.Qe2 Be7 10.Qe5 =.

6.ed4 Nd4 7.Nf3 Bg4 8.Bd4 Bf3 (better is 8...ed4 9.Qe2 Qe7 10.Qe7 Be7+=) 9.Qf3+/– Qd4 10.Nc3 (better is 10.Qb7!? Rd8 11.Ra2+/–) 10...Rd8 11.Qe3 Nf6 12.Qd4 Rd4 13.d3 Be7 14.Be2 0–0 15.0–0 c5 16.b5 a5 17.a4 Rd6 18.Rad1 b6 19.Ne4 Rd4 20.Nf6 Bf6 21.Bf3 Rfd8 22.Bd5 Re8 23.Rfe1 Bg5 24.Re4 Kh8 (24...Kf8 25.Kf1=) 25.Kf1 (better is 25.Bf7!? Re7 26.Bd5+/–) 25...f5= 26.Rd4 ed4 27.Re1 Re1 ½–½. Feng,Jason – Venturas,Bob, SN–2010–0–00254, 2010.

6.ed4 Nd4 7.Nf3 Bg4 8.Be2 Ne2 9.Qe2 f6 10.Qe3 (10.d4 Bf3 11.Qf3 ed4 12.Qb7 c5+/–) 10...Be7 (10...Qd7 11.d4 0–0–0 12.d5=) 11.0–0 Nh6 (11...Be6 12.Qe2 a5 13.d4 ab4 14.de5+=) 12.h3 (12.d4 ed4 13.Nd4 0–0+=) 12...Bh5 13.Nc3 (13.Qe4 a5=) 13...c6 (13...Nf5 14.Qe4 Nd6 15.Qe2+=) 14.d4 (better is 14.Ne4!?=) 14...Nf5–/+ 15.Qe4 Bf3?? (better is 15...Nd4 16.Ne5 a5–/+) 16.Qf5+/– (16.Qf5 ed4 17.Qf3 (worse is 17.gf3 dc3 18.Bc3 Qd7=) 17...dc3 18.Bc3+/–) 1–0. Fournier,Frederic – Pinobertol, Partie amicale, 9m + 5s, 2008.

6.Nf3 de3 7.Qe2 ef2 8.Kf2 Nf6 9.Ne5 Ne5 10.Qe5 Be7 11.Be2 0–0 12.Qd4 Bd7 13.Nc3 c5 14.bc5 Rc8 15.Ne4 Ne4 16.Qe4 Bc5 17.d4 Qf6 18.Bf3 Bc6 19.Qg4 h5! 20.Qh5 Bd4 21.Bd4 Qd4 22.Kg3 Bf3 23.gf3 Rc4 24.Rhd1 Qf4 25.Kh3?? (better is 25.Kg2–+) 25…Rc6 0–1. Fillipov,Vladimir (1965) – Ponomariov,Timur (2310), Voronezh Region–ch, 2009.

6.Nf3 de3 7.de3 Qd1 8.Kd1. Schiffler – Grosser, (year?).

6.Nf3 de3 7.Be5? Ne5 8.de3 Qd1 9.Kd1 Nf3 10.gf3 Bf5 –+.

6.Nf3 Bg4 7.h3 Bh5 8.d3 Nh6 (8...Nf6 9.Nbd2 Qd6 10.c5=) 9.b5 ab5 10.cb5 Na5 11.g4 Bg6 12.ed4 e4 (better is 12...ed4!? 13.Bd4 f6=) 13.de4+/– Be4 14.Nc3 Bf3 15.Qf3 Nb3 (better is 15...Be7!? 16.Bd3 0–0+/–) 16.Qb7+– Qe7?? (16...Bd6 17.Qe4 Qe7 18.Qe7 Ke7+–) 17.Kd1 Rd8 18.b6 Rd4 (18...Na5 19.Qa7 Rd4 20.Kc2 Qd6 21.Bb5 c6+–) 19.Kc2 Na1 (19...Rd7 20.Rd1 c6 21.Qc6+–) 20.Ba1 Qd8 (20...Rd2 21.Kd2 c6 22.Qc6 Qd7 23.Qd5 Qd5 24.Nd5 f6+–) 21.Bb5 Rd7 (21...Ke7 22.bc7 Kf6 23.cd8Q Rd8 24.Ne2 Rd4 25.Bd4 Kg6 26.Qe4 f5 27.Be8 Nf7 28.Qf5 Kh6 29.Qh5) 22.bc7 Qc7 (22...Ke7 23.cd8Q Ke6 24.Re1 Kd6 25.Qd5) 23.Qc7 1–0. marekt – bigjesus, chessworld.net, 2015.

5.c4 Be6

6.b5 ab5 7.cb5 Na5 8.Be5 Nc4 (8...Nf6 9.Nf3 (9.Nc3 d4 10.ed4 Nb3 11.Rb1) 9...Bd6 10.Nc3 (10.Bd6 Qd6 11.Nc3 0–0; 10.Qc2 h6 11.Nc3) 10...0–0 (10...Be5 11.Ne5) 11.Bd6 (11.Qc2 Re8) 11...Qd6 12.Nd4) 9.Bc4 dc4 10.Qf3 (10.Nf3 Nf6 11.Nc3 Ba3 12.Nd4) 10...b6? (better is 10...f6 11.Bf4 (11.Bg3 Qd3 12.Ne2; 11.Bb2 Qd3) 11...Qd7+= (11...Ne7 12.Ne2) 12.Nc3) 11.Bc7!+– Qc7? (better is 11...Qd5+–) 12.Qa8 Bc8 13.Nc3 Nf6 14.Nf3 Bd6 15.a4 (15.Ne4!? Be7 16.Rc1 0–0 17.Nf6 Bf6+–) 15...0–0 16.a5 (better is 16.Qc6 Bf5 17.Nd4+–) 16...Ba6?? (16...Bb7 17.ab6 Qd7+– (17...Ba8?? 18.bc7 Nd7 19.Ra7+–)) 17.ab6 Qb6 (17...Ra8?? 18.bc7 Bc7 19.Ra6+–) 18.Qa6 Qa6 (18...Qb8 19.Ra4+–) 19.ba6 Ra8 20.a7 g6 (20...Kf8 21.Nb5 Ke7 22.Ra4+–) 21.Nb5 Bc5 22.Ke2 Kg7 23.Rhc1 1–0. Anonymous – FriendlyPerson, internet, 2011.

6.b5 ab5 7.cb5 Nb8 8.Be5 A) 8...Nd7 9.Bd4 Ngf6 10.Qc2 (10.Nf3 Bd6 11.Qc2) 10...Bd6 11.Nf3 0–0; B) 8...Nf6 B1) 9.Nf3 Nbd7 10.Bf4 (10.Bd4 Bd6 11.Qc2) 10...Nc5 11.b6 Bd6; B2) 9.Qc2 Bd6 B21) 10.Bg3 Nbd7 (10...0–0 11.Nf3) 11.Bd6 cd6; B22) 10.Nf3 Be5 11.Ne5 Qd6 12.Nf3.

6.b5 ab5 7.cb5 Nb8 8.Nf3 Nf6 9.Ne5 (9.Be5 Nbd7 10.Bd4 Bd6 11.Qc2) 9...Nbd7 (9...Bd6 10.Bd3 0–0 11.0–0) 10.Nd7 Qd7 11.Bf6 gf6.

6.b5 ab5 7.cb5 Nce7 8.Be5 Ng6 9.Bd4 Nf6 (9...Nh6 10.Nf3 Nf5 11.Nc3 Ra3) 10.Nf3 (10.h4 Ne7 11.Nf3) 10...Bd6 A) 11.h4 Bg4= (11...0–0 12.h5); B) 11.Bd3=.

6.b5 Nb8 A) 7.ba6 Na6 8.Nf3 (8.Be5 dc4 9.d3 cd3 10.Qd3 Qd3 11.Bd3=) 8...f6 (8...e4 9.Nd4 Nc5 10.Ne6 Ne6 11.cd5=) 9.cd5 Bd5 10.Nc3 (10.d4 e4= 11.Nfd2+=) 10...e4 11.Nd5=; B) 7.Qb3 dc4 8.Bc4 Bc4 9.Qc4 Nd7 10.d4 ed4 11.ba6=; C) 7.cd5 Qd5 8.Nf3 (8.Nc3 Qd8 9.ba6 Na6 10.Nf3 Bd6 11.d4+=) 8...e4 9.Nc3 Qh5 10.Ne4 ab5 11.Nd4+/–.

6.c5 d4 7.d3 (7.Nf3 Be7–/+) 7...Nh6 8.Nf3 Be7 (8...de3 9.fe3 Nf5 10.Qe2–/+) 9.Be2 (9.ed4 ed4 10.Be2 0–0+=) 9...0–0 (9...de3!? 10.fe3 Nf5–/+) 10.0–0 de3 11.fe3 Nf5 12.Qd2 h6 (12...Bg5 13.Ng5 Qg5 14.Bc1+=) 13.g4? (better is 13.Ne5!? Bg5 14.Nc6 bc6 15.Rf3=) 13...Nh4–/+ 14.Ne5?? (better is 14.Nc3–/+) 14...Ne5–+ 15.Be5 Qd5 (15...Qd5 16.Rf2 Qe5–+) 0–1. onny555 (1620) – zeechia, Gameknot.com, 2009.

6.c5 Nh6 7.Nf3 e4 8.Ne5 +=.

6.Nf3 e4 7.cd5 Bd5 8.Nd4 Nf6 9.Nc3 Ne5 10.Rc1 Bd6 =.

6.Nf3 f6 7.cd5 Bd5 (7...Qd5 8.d4 ed4 9.Bd4 Rd8 10.Nc3 Qh5=) 8.Nc3 (8.d4 e4 9.Nfd2 f5 10.Nc3 Nf6+=) 8...Bf7 (8...Be6 9.b5 ab5 10.Bb5 Nge7+=) 9.Qb1 (9.b5 Na5 10.ba6 ba6+=) 9...Bd6 (9...Bg6 10.e4 Bf7=) 10.Bd3 g6 (10...Nge7=) 11.Ne4 Nh6 12.0–0 Nf5 13.g4 (13.Nc5 Bc5 14.bc5 Qe7+=) 13...Ng7 14.g5 (White gets the initiative) 14...fg5 15.Nfg5 Qe7 16.Nf7 Qf7 17.f4 Qe6 (17...ef4? 18.Nd6 cd6 19.Rf4+–) 18.Ng5 Qg4 19.Kh1 0–0–0 (19...Nf5!?+/–) 20.Nf7+– ef4? (20...Rhe8 21.b5 Nh5 22.Nd6 Rd6=) 21.Bg7 (21.Nd8 Nh5 22.Bf5 gf5 23.Bh8 Ng3 24.hg3 Qh3 25.Kg1 Qg3 26.Kh1 Qh3 27.Kg1 Qg3 28.Kh1 Qh3 29.Kg1 Qg3=; 21.Nh8?! Qd7+–) 21...Rhg8 22.Nh6 (better is 22.Nd8 Nd8 23.Bc3+–) 22...Qh3 23.Nf5 f3?? (better is 23...Rg7 24.Nd6 Rd6 25.Rf4 Rgd7+=) 24.Rf2 +/–. pierre – flosi, internet, 2008.

5.c4 Nf6

6.b5 Na5 7.cd5 Qd5 8.ba6 ba6 9.Nf3 =.

6.b5 ab5 7.cb5 Ne7 8.Be5 Nf5 (8...Ng6 9.Bd4+=) 9.Nf3 Be6 10.Qc2+/– Bd6 11.d4 0–0 (11...Be5 12.Ne5 Nh4 13.b6+/–) 12.Bd3 g6 (12...Ne4 13.Be4 de4 14.Qe4 Bb4 15.Nfd2+/–) 13.0–0+– Nd7 (13...Qe7 14.Rc1+–) 14.Bd6 Nd6 15.a4 b6 (15...Qe7 16.a5+– (16.Qc7? Rfc8 17.b6 Bf5 18.Bf5 Rc7 19.bc7 Nf5–+)) 16.Rc1 Rc8 (16...Ra7 17.Nbd2+–) 17.Ra3 Nf6 (17...Re8 18.Rc3+–) 18.Nbd2 Re8 (19.Rc3 Re7+–; 18...Nfe8 19.Ne5+–). pcmvr (2225) – mbarker (2060), net–chess.com, 2006.

6.b5= ab5 7.cb5 Ne7 8.Be5 Ng4 (8...Ng6 9.Bd4+=) 9.Bb2 (9.Bc3 Ng6+/–) 9...Bd7 (9...Ng6 10.Nf3+=) 10.a4 (10.Be2 Nf6+/–) 10...c6 (10...Ng8 11.Nf3+/–) 11.Na3 (11.Be2 Nh6+/–) 11...Qc7 (11...f6 12.Nf3+/–) 12.Nf3 (better is 12.bc6 Nc6 13.Nb5+/–) 12...0–0–0? (better is 12...c5+/–) 13.h3 Nf6 (13...Nh6 14.a5 Ng6 15.Qa4+–) 14.Qb3 (14.a5!? Bf5+–) 14...Be6 15.b6 Qd7 16.Ne5 Qd6?? 17.d4 Nd7 18.a5 f6? 19.a6 Qb8 20.a7 Qa8 21.Nc6 Nc6+/– 22.Rc1 Ba3?? 23.Ba3 Rhe8 24.Be2 Rg8 25.Rc6! bc6 26.Ba6 A classical mating theme (26.Ba6 Qb7 27.a8Q Nb8 28.Qb7#) 1–0. Olsen,Rolf – Malin,Oyvind, Kretsmesterskap for Finnmark, 2005.

6.b5 ab5 7.cb5 Ne7 8.Be5 Ng6 9.Bb2 Bd6 10.Nf3 0–0 11.Qc2 Bg4 12.Be2 Bf3 13.Bf3 Ne5 14.Be2 Neg4 15.h3 (better is 15.Bg4!? Ng4 16.Qf5+/–) 15...Nf2+= 16.Kf2?? (better is 16.0–0 N2e4 17.d3+=) 16...Ne4–+ 17.Kg1?? (17.Ke1 Qh4 18.Kd1 Nf2 19.Kc1 Nh1 20.Qc3–+) 17...Qh4 18.Qe4 de4 (better is 18...Qe1!? 19.Bf1 de4 20.Nc3 Qd2 21.Nd1–+) 19.Nc3 Be5 20.Rf1 Rad8 21.Bc1 Rd6 22.Bg4 f5! 23.Be2 (23.Rf5 Rf5 Mate attack; 23.Bf5 Rdf6 Decoy) 23...Rg6 24.Rf2 Bg3 25.Rf1 c6 26.Bc4 Kh8 27.Ne2 Bd6 28.bc6 bc6 29.Nd4 (29.d4–+) 29...f4 (29...Rg2 30.Kg2 Qg3) 30.Ne6 (30.Rf2 fe3 31.Rf8 Bf8 32.de3 Qe1 33.Bf1 Rf6 34.Nf3 ef3 35.e4 fg2 36.Kh2 gh1R 37.Kh1 Rf1 38.Kg2 Qf2) 30...Rff6 (30...Rg2! 31.Kg2 Qg3) 31.Nf4–+ Bf4 32.ef4 (32.Rf4 Qe1 33.Bf1 Qc1–+) 32...Rf4 (32...Rg2 33.Kg2 Rg6 34.Kh2 Qg3) 33.d3 (33.Rf4 Qf4 34.Ba6–+) 33...Rf1 (33...e3 34.Rf4 Qf4 35.Bd5 cd5 36.Be3 Qe3 37.Kh2 Qg3 38.Kg1 Qg2) 34.Kf1–+ Qg3 (34...Qg3 35.Ke2 Qg2 36.Ke3 Qh1–+) 0–1. combijack (1775) – pecosbill (1675), gameknot.com, 2010.

6.cd5 Nd5+= 7.d3 f5 (7...Bd6 8.Qh5+=) 8.Nf3 Bd6 9.Be2 0–0 10.0–0 b5 (10...Be6 11.Nbd2+=) 11.Nbd2 Qe7 12.Rc1 Bb7? (12...Nd8 13.Nc4 Nf7 14.Na5=) 13.Ne1?? (13.Qb3 Ncb4 14.ab4 e4+/–) 13...Qh4?? (13...Qe6 14.Nef3+=) 14.g3?? (14.Qb3!? Ncb4 15.Nef3+–) 14...Qh3 (better is 14...Qh6!?=) 15.Qb3+/– Nce7 (15...Kh8 16.Qd5 Nd4 17.Qb7 Ne2 18.Kh1 Nc1 19.Bc1+/–) 16.e4 fe4 (16...Rf6 17.Ndf3+/–) 17.de4+– Kh8 (17...Rad8 18.ed5 Bd5 19.Qc3+–) 18.ed5 Bd5 19.Qc3 Rf7 (19...Rac8 20.Qe3 Nf5 21.Qd3+–) 20.Ndf3 Bf3 (20...Rf6 21.Qe3+–) 21.Nf3 h6 (21...Rf5+–) 22.Ne5 Be5 (22...Rf6 23.Bg4 Be5 24.Qe5 Qg4 25.Qe7+–) 23.Qe5 Raf8 (23...Rg8 24.Qh5 Qh5 25.Bh5+–) 24.f4 (better is 24.Rc7 Ra8+–) 24...Nf5 25.Rc7 Ng3 26.Rf7 (26.hg3?! Qg3 27.Kh1 Qh3 28.Kg1 Qg3 29.Kh1 Qh3 30.Kg1 Qg3=) 26...Ne2 (26...Rf7 27.Qe8 Kh7 28.Qf7 Ne2 29.Kf2 Nc3 30.Bc3 Qc3 31.Qf5 Kh8+–) 27.Qe2 Rf7 28.Qe8 Kh7 29.Qf7 Qe3 30.Rf2 Qe1 31.Kg2 Qe4 32.Kg3 (better is 32.Kh3 Qg6 33.Qd5+–) 32...Qe3 33.Kg4 h5 (33...Qe6 34.Qe6 a5 35.Kf5 ab4 36.Qg6 Kg8 37.Qg7) 34.Kg5 1–0. Vandenburg,V – Keeley,G, Westland SE MI, 1985.

6.cd5 Nd5 7.Nf3 Bd6 8.d3 0–0+= 9.Nbd2 b5 (9...Be6 10.Be2+=) 10.Be2 a5 (10...Bb7 11.0–0=) 11.ba5 Qe7 (11...Be6!?=) 12.Qb3+= Be6 13.Qb5 Na5 (13...Qd7 14.Qa4+=) 14.Qa4 (worse is 14.Ne5 Rfb8 15.Nc6 Rb5 16.Ne7 Be7–+) 14...Nb3 (14...Rfb8!? 15.Qc2 Bd7+=) 15.Qb3+– Ne3 16.Qc3 (worse is 16.fe3 Bb3 17.Nb3 Rfb8+=) 16...Ng2 17.Kf1 (17.Kd1 Nf4+/–) 17...Nf4 18.Rg1 (worse is 18.Ne5 f6 19.d4 Ne2 20.Ke2 fe5 21.de5 Bc5+=) 18...f6 19.Ne4 Kh8 20.Nfd2 Rfb8 21.Nc4 (21.Ke1 Ra4+/–) 21...Bc5 (21...Bc4 22.dc4 Ba3 23.c5 (23.Ba3?? Ra3 24.Qc1 Ra1 25.Qa1 Qa3–+) 23...Bb2 24.Ra8 Ra8 25.Qb2+=) 22.Qd2 (22.Qc2 Bd5+/–) 22...Rd8 23.Qc2 Bh3 (23...Bd4 24.Bd4 Rd4 25.Rg3+/–) 24.Ke1 Ba7 (24...Bd4 25.Bd4 Rd4 26.Rg3+/–) 25.Rg3 Ng2 (25...Bd4 26.Bd4 Rd4 27.Rb1+/–) 26.Kd1 (better is 26.Kd2 Nf4 27.Rag1+–) 26...Bf5? (better is 26...Nf4!?+/–) 27.Nf6+– (27.Rg2?! Be4 28.f3 Bd5+/–) 27...Nf4 28.Ne5 gf6 29.Nc6 (29.Qc4 Nd5 30.Nc6 Qe6 31.Nd8 Rd8+–) 29...Qe6 30.Nd8 Rd8 31.Qd2 Re8 32.Bf1 (32.Qf4?! Qe2 33.Kc1 Qe1 34.Kc2 Re2 35.Kb3 Be6 36.Ka4 Bd7 37.Kb3 Be6 38.Ka4 Bd7 39.Kb3 Be6=) 32...Nh5 33.Re3 (better is 33.Rg1!?+–) 33...Be3+/– 34.fe3 Qb6 (34...Bg4!? 35.Kc2 Qb6+/–) 35.e4+– Bg4 36.Kc1 (36.Ke1 Nf4 37.Rb1 Nd5+–) 36...Be6 (36...Qc5 37.Kb1+/–) 37.Bc3 Rg8 (37...Bg4 38.Kc2+/–) 38.Qe2 (38.d4 Bf7+–) 38...Rg1 39.Kd2 (39.Qh5?? Rf1 40.Kd2 Rf2 41.Qe2 Bg4 42.Qf2 Qf2 43.Kc1 Be2–+) 39...Bg4 40.Qe3 Rh1 41.Qb6 Rh2 42.Ke3 cb6 43.Rb1 (43.a4 Bd7+/–) 43...Rh1 44.Re1 Rh2 (better is 44...Kg7+/–) 45.Rb1 (45.d4 Kg7+/–) 45...Rh1 46.Ra1 Rh2 47.Rb1 ½–½. Cirulis,Ilmars (1890) – Sorbi,Luca (1990), FICGS, 2015.

6.cd5 Nd5 7.Nf3 Bd6 8.Bd3 0–0 9.Nc3 Be6 10.0–0 Qe7 11.Qe2 Nc3.

6.Nf3 e4 7.cd5 Qd5 8.Nc3 A) 8...Qh5 A1) 9.Nd4 Qd1 (9...Nd4 10.Qh5 Nh5 11.ed4 Bf5) 10.Nd1 Bd7 11.Nc6 (11.Be2 Bd6) 11...Bc6; A2) 9.b5 ab5 10.Nb5 Ra5 11.Ne5 Qd1; B) 8...Qd7 9.b5 ab5 10.Ng5 b4 11.Nb5 (11.ab4 Ra1) 11...ba3–/+ (11...h6).

6.Nf3 e4 7.cd5 Qd5 8.Nd4 A) 8...Qd6 9.Nc6 Qc6 A1) 10.Nc3 Bd7 (10...Bd6 11.b5 Qd7) 11.Be2 Be7; A2) 10.Bf6 Qf6 11.Nc3 Bf5; B) 8...Bd7 9.Nc3 Qg5 10.h4 (10.Na4 Ne5 11.Nc5 Bc5) 10...Qg6 11.Na4 (11.Nc6 Bc6) 11...Be7+= (11...Bd6).

6.Nf3 e4 7.cd5 Nd5 8.Nd4 Nd4 9.Bd4 Be7 (9...Be6 10.Qc2 f5 11.Nc3 Qd7) 10.Nc3 Nc3 11.dc3 0–0.

5.Nf3 Bd6

6.b5 ab5 7.Bb5 +=.

6.c4 dc4 7.Bc4 b5 8.Bd5 Bb7 9.0–0 Nf6 (9...Nge7 10.Bb3 0–0 11.d4 ed4 12.ed4=) 10.Bc6+= Bc6 11.d4 (11.Ne5!? Be5 12.Be5+=) 11...e4= 12.Ne5 Be5 (12...Bb7 13.Qc2=) 13.de5 Qd1 14.Rd1 0–0?? (better is 14...Nd5=) 15.ef6+– Rfd8 16.Rc1 Bb7 (16...gf6 17.Bf6 Rd6 18.Be5+–) 17.fg7 Rd7 18.Be5 Rad8 (18...Re8 19.Bd4+– (19.Bc7?! Rc8+/–)) 19.Nc3 Re8 20.Bd4 Re6 21.Rd1 f6 22.Bf6! Rd1 23.Rd1 Rf6 24.Rd7 Rf7 25.Rf7 Kf7 26.g8B! Kg8 27.g4 Bc8? 28.Nd5 Be6 29.Nc7 Bg4 30.Na6 Bf3? 31.Kf1 Kf7 32.Nc7 Ke7 33.Nb5 Kd7 34.a4 1–0. Yannick – Thg007, playchess.de, 2005.

6.c4 dc4 7.Bc4 Qf6 8.0–0 (8.d4 e4 9.Nfd2 Qg6=) 8...Nge7 (8...Bg4 9.d3=) 9.d4 (9.Nc3 Qg6=) 9...ed4 (9...e4 10.Nfd2=) 10.Nd4 Nd4 (10...0–0 11.Nd2=) 11.Bd4 Qg6 (11...Qh6 12.f4=) 12.Bd3 (12.Nc3 Nc6=) 12...Qg5 (12...Bf5 13.e4 Bh3 14.Qf3+=) 13.f4+= Qh6 14.Nd2 (14.Nc3 Nf5 15.Bf5 Bf5+=) 14...0–0 (14...Nf5 15.Nb3=) 15.Ne4 (15.Nc4 Nf5 16.Nd6 cd6+=) 15...Nf5 (better is 15...Bf5+=) 16.Ng5 (better is 16.Nd6!? cd6 17.Bb6+=) 16...Nd4=+ 17.ed4 (17.Bh7? Kh8 18.Qd4 f6–+) 17...Qe6?? (better is 17...Bf4 18.Rf4 Qg5=+) 18.Ne6 (better is 18.Bh7 Kh8 19.Ne6 Be6+–) 18...Be6 19.Qh5 g6 20.Qh6 Bf5 21.Bf5 gf5 22.Rf3 f6 23.Rg3 Kf7 24.Rg7 Ke6+– 25.Qh7 Rfe8 26.Re1 Kd5 27.Qf5 Kc6 28.Rc1 Kb6 29.a4 Rac8 30.a5 Ka7 31.Rgc7 Bc7 32.Qc5 Kb8 33.b5 ab5?? 34.Qb5 (34...Bf4 35.Rc8 Rc8 36.a6+–) 1–0. sculp – KINGCOBRA, Live Game Caissa's Web, 2006.

6.c4 dc4 7.Bc4 Nf6 8.0–0 =.

6.c4 dc4 7.Bc4 Nf6 8.Qc2 0–0 9.Nc3 Be6 10.Be6 fe6 11.0–0 Qd7 12.Ng5 h6 13.Nge4.

6.c4 dc4 7.Bc4 Nf6 8.d4 ed4 9.Nd4 Ne5 10.Be2 0–0 11.h3 c6 12.Nc3 Ng6 13.Qc2 Re8 14.0–0 Qc7 15.Rac1 Qd8 16.Bd3 Ne5 17.Be2 a5 18.b5 c5 19.Nf3 b6 20.a4 Bb7 21.Nh2 Qc7 22.f4 Ng6 23.Nd1 Ne4 24.Nf3 Ng3 25.Rf2 Ne2 26.Re2 Be4 27.Qc3 f6 28.Qc4 Kh8 29.Kf2 Rad8 30.Nc3 Bf3 31.Kf3 Qb7 32.Kf2 Bb8 33.Rd1 Rd1 34.Nd1 Re4 35.Qd3 Qe7 36.g3 Re6 37.Rd2 Rd6 38.Qe2 h6 39.h4 f5 40.Rd6 Qd6 41.Qc2 Qe6 42.Qd3 Bc7 43.Nc3 Ne7 44.Nb1 Kg8 45.Nd2 Nd5 46.Nf3 Nb4 47.Qc3 Qd7 48.Nd2 Nd3 49.Ke2 Nb2 50.Qb2 Qd5 51.Kf2 Kh7 52.Nf3 Bd8 53.Qe5 Qf7 54.Qb2 Bf6 55.Ne5 Qd5 56.Qc2 g6 57.Nc4 Qd8 58.Qd2 Qd2 59.Nd2 g5 60.hg5 hg5 61.Nc4 g4 62.Nb6 Kg7 63.Nc4 Bd8 64.b6 Kf6 65.b7 Bc7 66.Na5 Ke6 67.Nc4 Kd7 68.a5 Bb8 69.a6 Kc6 70.Ne5 Kd6 71.Ke2 Ba7 72.Kd3 Kc7 73.Kc4 Kb6 74.Nd7 Ka6 75.b8Q Bb8 76.Nb8 Kb7 77.Nd7 Kc6 78.Nc5 Kd6 79.Kd4 Kc6 80.Ne6 Kd6 81.Ng7 1–0. ekosachro (2410) – mpenga (2490), net–chess.com, 2014.

6.c4 d4 7.b5 ab5 8.cb5 Na5 9.ed4 ed4 10.Bd3 Nf6 11.0–0 0–0 12.Bd4 Be6 13.Re1.

6.c4 d4 7.ed4 ed4 8.b5 ab5 9.cb5 +=.

6.c4 d4 7.ed4 Nd4 8.Bd3 (8.c5 Be7=) 8...Bg4= 9.Bd4 Bf3? (better is 9...ed4!? 10.0–0 Qf6=) 10.Qf3+/– (worse is 10.gf3 ed4 11.Qe2 Qe7–/+) 10...ed4 11.c5 Be7 12.Qb7 Nf6 13.Qc6 Nd7 14.Bf5 0–0? (better is 14...Ra7+/–) 15.Bd7+– Bf6 (15...a5 16.b5 Bc5 17.0–0+–) 16.0–0 d3 (16...Qe7 17.a4+– (worse is 17.Qc7 a5+–)) 17.Nc3 a5 (17...Ra7 18.Qd5+–) 18.b5 a4 (18...Bd4 19.Rae1 Bc5 20.Qc5 Qd7 21.Re7+–) 19.Rac1 Be5 (19...g6 20.Nd5 Bb2 21.Rc4+–) 20.Nd5 Qh4 (20...Ra7 21.Rfe1 Bb2 22.Rc4+–) 21.g3 Qd4 (21...Qh6 22.Rce1 Bb2 23.Re3 Qc6 24.Bc6+–) 22.Rb1 h5 (22...Qc4 23.b6 cb6 24.Nb6 Qa6+–) 23.Rb4 Qb2 24.Rb2 (24.Rb2 Bb2 25.Qc7+–) 1–0. Pamieci Krzysztofa P – napohybel, internet, 2016.

6.c4 d4 7.ed4 e4 8.Ne5 Nf6 9.Be2 0–0 10.0–0 Bf5 11.Nc6 bc6 12.Nc3 Re8 13.Na4.

6.c4 d4 7.Qe2 de3 8.c5 Be7 9.Ne5 Ne5 10.Be5 ef2 11.Kf2 Nh6 12.Bg7 Ng4 13.Kg1.

6.c4 Nf6 7.c5+= Be7 8.Ne5 Ne5 9.Be5 0–0 10.Nc3 (10.Be2 Re8 11.Nc3 Ne4 12.Ne4 de4+/–) 10...c6 (10...Ng4 11.Bg3+=) 11.Be2 (11.d4 Bg4 12.Qc2 Nd7+–) 11...Nd7 (11...a5 12.0–0+/–) 12.Bg3 Nf6 13.0–0 (13.d4 Re8+/–) 13...Be6 (13...d4 14.Na4 d3 15.Bf3+/–) 14.d4 Ne4 (14...Bf5 15.Bd3 Qd7 16.Bf5 Qf5 17.f3+/–) 15.Ne4+– de4 16.f3 (16.Qc2 Qd5+/–) 16...Bd5 (16...Bg5 17.Qd2 Qd5 18.fe4 Qe4 19.Bf4+–) 17.fe4+– Be6 (better is 17...Be4 18.Bc4 Bg5+–) 18.Bg4 (18.Qd3 Qd7+–) 18...Bg4 (18...Bg5 19.Bf4+–) 19.Qg4 Bg5 20.Bf4 (20.Qf3 Qd7+–) 20...Bf4 21.Rf4 (21.ef4?! Qd4 22.Kh1 Qe4+=) 21...b5 (21...a5 22.Rb1+–) 22.Raf1 (22.Rd1 a5+–) 22...Qe7 (22...a5 23.Qf3 ab4 24.ab4+–) 23.e5 a5 24.Qf3 (better is 24.Rf6 ab4 25.ab4+–) 24...a4?? (24...ab4 25.ab4 Qd7+–) 25.Qc6 Qc7 (25...Qe8 26.Qe8 Rae8+– (26...Rfe8?? 27.Rf7 h5 28.Rb7+–)) 26.Qc7 (26.Qc7 Kh8 27.Rf7+–) 1–0. aschellen – kangy32, internet, 2006.

6.c4 Nf6 7.cd5 Nd5= 8.Bc4 Be6 (better is 8...Nb6!? 9.Bd3 f5+=) 9.Qb3+= e4 10.Bd5 Bd5 11.Qd5 ef3 12.Qf3 Ne5? (better is 12...0–0!?+/–) 13.Be5+– Be5 14.d4 Bf6 15.Qb7 0–0 16.0–0 Re8 17.Nd2 Re7 18.Qc6 Re6 19.Qc4 Qd6 20.Qc5 Qd7 21.Rac1 Rc8 22.Qf5 Qe8 23.Nc4 c6 24.Rfd1 Rd8 25.g3 (25.Qc2 Rb8+–) 25...Rd5 26.Qf3 g6 27.Na5 Qd7 28.Rc3 Bd8 29.Nb3 Rf6 30.Qe2 Qa7 31.Rdc1 Qb6 32.Na5 1–0. Mikolajczak,Wojciech (1735) – Napierala,Jakub, Bydgoszcz Poland, 2013.

6.Be2 e4 7.Nd4 (7.Bg7!? ef3 8.Bf3+=) 7...Ne5 (7...Qg5 8.g3+=) 8.d3 (8.f4 ef3 9.Nf3 Nf3 10.Bf3 Qh4 11.g3 Qg5=) 8...Qg5+= 9.g3 Nf6 10.Qd2 (10.Nc3 Bh3+=) 10...Bg4 11.Bg4 (11.Nc3 0–0–/+) 11...Nfg4 (11...Qg4 12.0–0–/+) 12.Qe2+= Qg6 13.de4 de4 (worse is 13...Qe4 14.f3 Nf3 15.Qf3 Qe3 16.Qe3 Ne3 17.Nd2+/–) ½–½. Pagali,M – Pashos,G, Patras, 2000.

6.Be2 Be6 7.d3 (7.0–0 Nh6 8.d3 0–0 9.e4 d4 10.Nbd2 f5 11.c4 Qf6 12.ef5 Qf5 13.Ne4; 7.Nc3 Nf6 8.0–0 0–0 9.h3 h6 10.d3 Qe7 11.Qd2 Qd7 12.Rfe1 Rfe8 13.Rab1) 7...h6 (7...Nf6 8.0–0 0–0 9.Nbd2 Bf5 10.c4 e4 11.de4 de4 12.Nd4 Nd4 13.Bd4) 8.0–0 (8.c4 dc4 9.dc4 Nf6 10.c5 Be7 11.Qd8 Rd8 12.Ne5 Ne5 13.Be5) 8...Nf6 9.Re1 (9.c4 dc4 (9...e4 10.de4 de4 11.Nfd2 0–0 12.c5 Be5 13.Be5) 10.dc4 e4= 11.Nfd2 Qe7 12.c5 Be5 13.Be5; 9.Nbd2 0–0 10.c4 Nd7 11.Qc2 Qf6 12.cd5 Bd5 13.Ne4) 9...b5 (9...0–0 10.Nbd2= Qd7 11.h3 Rfd8 12.d4 ed4 13.Nd4) 10.e4 (10.c4 dc4 (10...bc4 11.dc4 e4 12.Nfd2 0–0 13.cd5) 11.dc4 bc4+= 12.Nbd2 c3 13.Bc3) 10...d4= (10...0–0 11.ed5 Nd5 12.Nc3 Nf4 13.Ne4) 11.Nbd2 (11.c3 dc3 12.Nc3 0–0 13.g3) 11...0–0 12.Nh4 (12.c3 dc3 13.Bc3 a5+=) 12...Qd7 (12...a5 13.ba5 Ra5 14.Nf5–/+; 12...Ne4 13.Ne4) 13.Ndf3 (13.c3–/+) 13...Be7 (13...a5 14.c3–/+) 14.Qd2 a5 15.Nf5? (better is 15.c3+=) 15...Bf5–+ (15...ab4?! 16.Ne7 Qe7 17.ab4 Qb4 18.c3+=) 16.ef5 Qf5 (16...ab4!? 17.ab4 Qf5 18.c3–+) 17.Nh4 Qe6 18.c3?? (better is 18.Bf3 ab4 19.Nf5 Qf5 20.Bc6 ba3 21.Bd4 ed4 22.Ba8 Ra8 23.Re7–/+) 18...dc3–+ 19.Bc3 Rfd8 (19...ab4 20.Bb4 Nb4 21.ab4–+) 20.Rab1?? (20.Bf3 Nd5 21.Bd5 Qd5 22.Nf3 Qd3 23.Qc1–+) 20...ab4 (20...Ne4 21.Qb2 Nc3 22.Qc3 ab4 23.ab4 Bh4 24.Bf3–+) 21.ab4? (21.Bb4 Nb4 22.ab4 Nd5–+) 21...Nd5 (better is 21...Ne4 22.Qc2 Nc3 23.Qc3 Bh4 24.Bf3–+) 22.h3?? (22.Nf3 Ra3 23.Bb2–+) 22...Bh4 (worse is 22...Nc3 23.Qc3 Bh4 24.Bf3–+) 23.Bh5 (23.Bf3 Ra3 (worse is 23...Nc3 24.Qc3 Ra2 25.Bc6 Bf2 26.Kh1 Be1 27.Re1–+) 24.Bd5 Qd5–+) 23...Bg5 24.Qc2 (24.Qb2 Nf4 25.Bg4 Qg6–+) 24...Nc3 (better is 24...Ra3!? 25.Bb2 Ndb4 26.Qe2–+) 25.Qc3 Rd4 (25...Ra2 26.Re2–+) 26.Bg4 (26.Bf3 Ra6–+) 26...f5 (26...Qd6 27.Bf3 Ra6 28.Qc5–+) 27.Bh5 (27.Bf5 Qf5 28.Qc6 Ra2–+) 27...Ra4 (27...e4 28.Bd1 Qd7 29.de4–+) 28.Kh2 (28.Bd1 Rab4 29.Bb3 Rb3 30.Qb3 Qb3 31.Rb3 Rd5–+) 28...Rab4 29.Rb4 Rb4 30.Ra1 Ra4 (30...Qd6 31.Ra6 Qd4 32.Qe1 Bf4 33.Kg1 Qd3 34.Bg6–+) 31.Rd1 (31.Bd1 Bf4 32.g3 Bg3 33.Kg3 Qg6 34.Kh2 Ra1 35.Qa1–+) 31...Qd6 (31...b4 32.Qc5–+) 32.g3 (32.Be8 Nd4 33.Bb5–+) 32...b4 (better is 32...Nd4 33.h4 Ra3 34.Qb2–+) 33.Qc4?? (better is 33.Qb3 Kh7 34.Qa4–/+) 33...Kh7 34.Qf7 (34.Be8 Na5 35.Qf7 Ra3–+) 34...Ne7 35.h4 Bf6 36.Kh3 Kh8 (better is 36...Ra3 37.Qc4–+) 37.Qf8?? (37.Qe8 Ng8 38.Bf7+=) 37...Kh7 38.Qf7 f4 (38...Ra3 39.Be2–+) 39.gf4 (39.Bf3 Qd8–+) 39...ef4 (better is 39...b3 40.Qb3 Rf4–+) 40.Bg6 (40.Bf3 Qd8 41.Be4 Kh8 42.Rc1–+) 40...Ng6 41.Rg1 Qd3 42.Kh2 Bh4 (42...Ne5 43.Qe6 Qe4 44.Qe5 Be5 45.Rg7 Kg7 46.h5 f3 47.Kh3 Qf5 48.Kh4 b3) 43.Kh1 Qh3 0–1. pieeater – Daz101, ChessWorld.net, 2010.

6.Be2 Nge7 7.0–0 =.

6.Be2 Nf6

7.0–0 b5 8.Nc3 (8.d3 0–0=) 8...e4 9.Nd4 Nd4 10.ed4 Be6 11.d3 0–0 12.de4 Ne4 13.Ne4 de4 14.Re1 Qb8 (better is 14...Qh4!? 15.g3 Qg5+=) 15.d5+= Bf5 16.Qd2 c6 17.dc6 (17.Kh1 Rc8+=) 17...Bh2= 18.Kh1 Bf4 (18...Be5 19.Be5 Qe5 20.c4=) 19.Qd5 (19.Qd4 Bh6 20.c4 Rd8+/–) 19...Be6 (better is 19...Qc8!? 20.Rad1 Bc7+=) 20.Qe4 Re8 21.Bf3 Bc4?? (better is 21...Qc7!?+=) 22.Qd4 (better is 22.c7 Bc7 23.Qg4+– (23.Qa8?! Qa8 24.Ba8 Ra8+–)) 22...Re1 23.Re1 f6 24.Re7 (24.c7 Bc7 25.Ba8 Qa8+–) 24...Qd6? (24...Qf8 25.Qd7 Rd8 26.Rg7 Qg7 27.Qd8 Kf7+–) 25.Qd6 Bd6 26.Rd7 Bf4 (26...Bf8 27.c7 Be6 28.Rd8+–) 27.c7 (better is 27.g3 Be6 28.Re7+– (worse is 28.gf4 Bd7 29.cd7 Rd8+–)) 27...Bc7 (27...Rf8 28.g3 Bc7 29.Rc7 Rd8+–) 28.Ba8 Bb6 29.Bd5 Kf8 30.Bc4 Bf2 31.Rd6 h5 32.Bd5 h4 33.Ra6 Bg3 34.Rb6 g5 35.Rf6 Ke7 36.Rb6 g4 37.Rb5 Kd6 38.c4 h3 39.a4 Bf2 40.a5 hg2 41.Kg2 g3 42.a6 Kc7 43.c5 Kc8 44.a7 (44.a7 Bc5 45.a8Q Kd7 46.Rb7 Kd6 47.Qd8) 1–0. pieeater – Bandy 1, ChessWorld.net, 2013.

7.0–0 e4 8.Nd4 Bd7 9.Nc6 Bc6 10.Bd4 0–0 11.Nc3 Re8 12.f4 ef3 13.Rf3 Be5 14.Be5 Re5 15.Rf4 Rg5 16.h4 Re5 17.Qe1 Ne4 (17...Qe7!?+=) 18.d4= Nc3 (18...Re6!? 19.Ne4 Re4 20.Re4 de4+=) 19.de5+/– (worse is 19.Qc3 Re7+=) 19...Ne2 20.Qe2 Qe7 21.Qh5 Rf8 22.Raf1 Bd7 23.e4 Be6 24.ed5 Bd5 25.Rd1 Be6 26.Qf3 c5 27.Rd6 cb4 28.ab4 Rd8? (better is 28...Bc8+–) 29.Qb7 (29.Qb7 Kf8 30.Rd8 Qd8 31.Qa6+–) 1–0. Janek – Zack, internet, 2016.

7.c4 dc4 8.Bc4 0–0 9.Qc2 e4 10.Ng5 Bf5 11.Nc3 Qe7 12.h4 Ne5 13.Be2.

7.d4 e4 8.Ne5 Ne7 =.

7.0–0 0–0

8.Nc3 Re8 9.d3 Bg4 10.h3 Bh5 11.e4 d4 12.Nd5 Bg6 13.Nd2 (13.Nf6 Qf6 14.Qd2 Rad8+=) 13...Nd5–/+ 14.ed5 Ne7 15.Bf3 c6 (15...f6!?–/+) 16.dc6+= bc6 17.Ne4 Qc7 (17...a5 18.ba5 Nd5 19.Nd6 Qd6 20.Qd2+=) 18.c3= Be4 (18...dc3 19.Bc3 Nd5 20.Bd2=) 19.de4 c5 (19...dc3!? 20.Bc3 c5=) 20.bc5+/– Bc5 21.cd4 ed4 22.Bd4 Rad8? (better is 22...Bd4 23.Qd4 Rad8+/–) 23.Rc1+– Rd4 24.Qd4!! Bd4 (24...Rc8 25.Qa4+–) 25.Rc7 Ng6 26.Rd1 Be5 (26...Bb2 27.a4+–) 27.Ra7 Nh4 (27...Nf4 28.Ra6 g6 29.Ra7+–) 28.Be2 f5 (28...Ng6+–) 29.Bc4 Kf8 (29...Kh8 30.Re7! Ra8 31.Re5 fe4 32.Re4+–) 30.Rf7 Kg8 31.Rf5 Kh8 32.Re5! (32.Re5 Rf8 33.Ba6+–) 1–0. Janek – Larry, internet free game, 2017.

8.c4 dc4+= 9.Bc4 e4!? 10.Nd4 Bh2 11.Kh1 Ng4 –+.

8.c4 dc4+= 9.Bc4 Bg4 10.Be2 e4 11.Nd4 Be2 12.Nc6?? (12.Qe2 Nd4 13.Bd4 b6=) 12...bc6?? (better is 12...Bh2 13.Kh2 Qd6 14.Be5 A) 14...Bd1? 15.Bd6 Be2 16.Re1 (16.Bf8?! Bf1 17.Be7 bc6+=) 16...cd6 17.Ne7 Kh8 18.Re2+–; B) 14...Qd3–+) 13.Qe2= Qe7 (13...c5 14.f3 Re8 15.fe4 Ne4 16.Qg4=) 14.d3 (14.Qc4 a5+=) 14...h5 (better is 14...ed3!? 15.Qd3 c5=) 15.de4+/– Ng4 (15...Ne4 16.Qh5 c5 17.bc5 Bc5 18.Re1+/–) 16.g3 (16.h3 Bh2 17.Kh1 Be5+–) 16...g6 (16...Qe4 17.Nd2 Qf5 18.f3+/–) 17.Nd2 (17.f3 Nh6+–) 17...Be5 (17...c5 18.f3 Nh6 19.Nc4 cb4 20.Nd6 ba3 21.Nf7 ab2 22.Nh6 Kg7 23.Qb2 Kh6 24.Ra5+/–) 18.Be5 Qe5 (18...Ne5 19.Nb3+–) 19.Qc4 (19.f3 Nf6+–) 19...Nf6 (19...a5 20.ba5 Qf6 21.Qc2+–) 20.Qc6 Rad8 21.Nc4 Qe4 22.Qa6 Nd5 23.Qc6 Qf5 (23...h4 24.f3 Qc2 25.Rac1+–) 24.Rad1 Rfe8 (24...Nc3 25.Rd2+–) 25.Qc5 (25.Nd6 Qe6 26.Rd5 Rd6 27.Rd6 cd6+–) 25...Qf3 26.Nd2 Qg4 (26...Qf6 27.Nb3 Qc3 28.Rd5 Qb3 29.Rd8 Rd8 30.Qc7+–) 27.f3 Qh3 28.Ne4 h4 (28...c6 29.Rd5! cd5 30.Nf6 Kg7 31.Ne8 Re8 32.Qd5 h4 33.gh4 Qh4 34.Qd4 Qd4 35.ed4 Re3+–) 29.g4 (better is 29.Rd5 hg3 30.Ng3 Rd5 31.Qd5+–) 29...Re4 30.fe4 (30.Rd5?! Rd5 31.Qd5 Re3+=) 30...Qg4 31.Kf2 Qe4 32.Qd4 Qc2 (32...Qf5 33.Ke1 Qe6 34.Rf3+–) 33.Rd2 Qf5 34.Ke1 Qe6 35.Re2 (35.Rf4!? Re8 36.Rh4 Qe3 37.Qe3 Ne3+–) 35...Rd7 36.Qc4?? (36.Rf3 Qc6 37.Qe5 Re7+/–) 36...Qe5 (36...Ne3!? 37.Qe6 Rd1 (37...fe6?? 38.Re3 Kg7 39.Rf4+–) 38.Kf2 A) 38...fe6 39.Re3 (39.Ke3?! Rf1 40.Kd4 Rd1 41.Ke5 Rd3=) 39...Rd6 40.Rc1+–; B) 38...Rf1 39.Ke3 fe6=) 37.Rf3 (37.Qb5 Re7 38.Qc5 Qe4+–) 37...Nf6? (37...Qa1 38.Kf2 Qh1 39.Rc2=) 38.Qh4 (better is 38.Rf4+–) 38...Nh5? (better is 38...Ne4 39.Kf1 Nd2 40.Rd2 Rd2=) 39.Qc4 (39.Rc2 Kf8+–) 39...Qg5? (better is 39...Qa1 40.Kf2 Qh1+–) 40.Qc6 (40.Rd2 Re7 41.Rd8 Kg7 42.Qd4 f6+–) 40...Qg1 (40...Qd8 41.Qc2+–) 41.Rf1 Rd1 42.Kd1 Do you see the mate threat? 42...Qf1 43.Kd2 Qa1 (43...Nf6 44.a4+– (44.Qc7 Ne4 45.Kd3 Nf2 46.Kd4 Qe2–/+)) 44.Qc7 Qa3 45.Qc8 Kg7 (45...Kh7 46.Qc4 Qb2 47.Kd3 Qa3 48.Kc2 Qa4 49.Kb2+–) 46.Qc3 Qc3 47.Kc3 Nf6 48.Kd4 Nd7 49.Ra2 (49.Ra2 Kf8 50.Ra7+–) 1–0. hal1958 – Parandeha, playchess.de, 2002.

8.c4 d4 9.ed4= Nd4 (9...ed4 10.b5 (worse is 10.Nd4 Nd4 11.Bd4 Bh2 12.Kh2 Qd4–/+) 10...ab5 11.cb5=) 10.c5+= (worse is 10.Nd4 ed4 11.c5 Bf4=; worse is 10.Bd4 ed4 11.c5 Bf4+=) 10...Nf3 11.gf3 (11.Bf3!? e4 12.cd6 ef3 13.dc7 Qc7 14.Qf3+=) 11...Be7 12.Be5 Nd5 13.Nc3 Bh3 (13...Bf6 14.Bf6 Qf6 15.Nd5 Qg5 16.Kh1 Qd5 17.Rg1=) 14.Re1= Nf6 (14...Bf6!? 15.Bf1 Bf1 16.Kf1 Be5 17.Re5 Nf4+=) 15.Bc4 Nh5? (better is 15...Be6!? 16.Qe2 Bc4 17.Qc4 Re8+=) 16.Bc7!+– Qc7 17.Nd5 Qd7 18.Re7 Qf5 19.Kh1 Rad8 20.Qb3 Qg5 (20...Nf4 21.Nf4 Qf4 22.Rg1+– (22.Rb7?! Rd2 23.Qe3 Bg2 24.Kg1 Qc4 25.Kg2 Re2+/–)) 21.Rg1 Qh4 (21...Qd2 22.Qe3 Rd5 23.Bd5 Qd5 24.Re5+–) 22.Rb7 Qf2 (22...Be6 23.Ne7 Kh8 24.Be6 fe6 25.Qe6 Rf3 26.Nf5 (26.Qa6?? Rf2 27.Ng6 hg6 28.Rg2 Qe4 29.Qg6 Rf1) 26...Qf2 27.Nd6+– (27.Ng7 Nf4 28.Qd7 Rg8–+)) 23.Qe3 (23.Ba6 Rd5 24.Qd5 Nf4 25.Rg7 Kg7 26.Qg5 Kh8 27.Qf6 Kg8 28.Qg5 Kh8 29.Qf6 Kg8 30.Qg5 Kh8=) 23...Qh4 24.Ne7 Kh8 25.Nc6 Rde8 (25...Qc4 26.Nd8 Rd8 27.Qg5+–) 26.Ne5 Qf6 (26...Be6 27.Be6 fe6+–) 27.Nf7 (27.Rf7 Qh4+–) 27...Kg8 28.Nd6 Kh8 (28...Be6 29.Ne8 Re8+–) 29.Ne8 Re8 (29...Qc6 30.Rbg7 Be6 31.Qc3 Qf3 32.Qf3 Ng3 33.R1g3 Bd5 34.Bd5 Re8 35.Rg8 Rg8 36.Rg8) 30.Qe8 1–0. Janek – Nicolas, internet, 2016.

8.c4 Be6 9.c5+= Be7 10.Ne5 Ne5 11.Be5 Qd7 12.Nc3 b6 13.d4 bc5 14.dc5 c6 15.Qd4 Bf5 16.Rfd1 Rfc8? (16...Qe6 17.a4+/–) 17.Bf3 (better is 17.Na4!? Qe6 18.Nb6 Re8 19.Na8 Ra8+–) 17...Bg4 18.Bg4 Qg4?? (18...Ng4 19.Bg7 f6+–) 19.Bf6 Bf6 (19...Qd4 20.Bd4 f5+–) 20.Qg4 Bc3 1–0. purplegadge (1690) – jarvs (1730), gameknot.com, 2012.

8.d3!? =.

4.a3 Bf5

5.c4 dc4 6.Bc4 b5 (better is 6...e5!?=) 7.Qf3+/– bc4 8.Qc6 Bd7 9.Qc4 Nf6 10.Nc3 g6 (10...e5!?+/–) 11.Nd5+– Bg7? (better is 11...c6 12.Nf6 ef6+–) 12.Nc7 Kf8 13.Na8 Bb5 14.Qc5 Qa8 15.f3 Nd5 (15...Qd8 16.d4+–) 16.Bg7 Kg7 17.e4 Nf6 18.Qe7 (better is 18.a4 Bd3 19.Nh3+– (19.Qe7?! Re8 20.Qd6 Ne4 21.fe4 Be4+–)) 18...Re8 19.Qc5 (better is 19.Qd6 Ne4 20.fe4 Qe4 21.Kf2 Qh4 22.g3+–) 19...Nd7?? (better is 19...Ne4 20.Qd4 f6+/–) 20.Qc3 Kh6 (20...Nf6 21.Rc1+–) 21.a4 Rc8 (21...Bc6+–) 22.Qe3 g5 (22...Kg7 23.ab5 f6 24.ba6+–) 23.ab5 Qb7 24.Ra6 f6 25.h4 Rc1 (25...Kg6 26.e5 Re8 27.e6+–) 26.Kf2 Qb5 27.Qg5 Qg5 28.hg5 Kg7 29.Ra7 fg5 30.Rd7 Kf6 31.Rh6 Ke5 32.Rd5 Kf4 33.Ne2 1–0. Bonetti,Shane – patologo (1675), ICC, 2002.

5.d4 e6 6.Bd3 Bd3 7.Qd3 Nf6 (7...Qg5 8.g3+=) 8.Nd2 Be7 9.Ngf3 0–0 10.0–0 Qd6 11.c4 dc4 12.Nc4 Qd7 (12...Qd5 13.Ncd2=) 13.Nce5 Ne5 14.Ne5 Qd6 15.Rac1 b6 (15...Rfd8 16.Qc2 c6 17.e4+=) 16.Rc6 Qd8 17.Rfc1 Bd6 18.f4 (18.Nc4 b5 19.Nd6 cd6+=) 18...Be5 (18...Nd5!?+=) 19.fe5+/– Nd5 (19...Ne8!?+/–) 20.e4+– Nf4 21.Qf3 Qg5 22.g3 (better is 22.Rf1!? Nh5 23.d5+–) 22...Nh3+= 23.Kg2 Qd2 24.Kh3 Qb2 25.Rc7?? (25.Qd3 Rad8 A) 26.Rc7 Rd4 (worse is 26...Qd4 27.Qd4 Rd4 28.R1c6+/–) 27.Qc3 Qf2–/+; B) 26.Rd1+–) 25...Qd4= 26.Qf4 Qd8 (26...Rad8 27.Rf1 Rd7 28.Rc6=) 27.R7c3 b5 28.Rf3 (28.Qe3 Qb8=) 28...Qe7 (28...a5 29.ba5 Ra5 30.Kg2+=) 29.Rcf1 (29.Rfc3 a5+=) 29...Ra7 30.Qe3 h6 31.Rf4 Qg5?? (better is 31...a5+=) 32.Qa7+– Qh5 33.Kg2 Qe2 (33...Qe5 34.Rf7 Qe4 35.Kh3 Rf7 36.Qf7 Kh7 37.Rf6+–) 34.R1f2 (34.Kg1 Qc4+–) 34...Qf2 (34...Qh5+–) 35.Rf2 1–0. Fournier,Frederic – dominwito, Active, 2007.

5.d4 e6 6.Nf3 Nf6 7.Nbd2 Be7 8.Be2 0–0 9.0–0 Ne4 10.c4 b6 (10...dc4 11.Ne4 Be4 12.Bc4=) 11.Ne4+= Be4 12.c5 Qc8 13.Bd3 Bd3 14.Qd3 Bf6 (14...Qb7 15.Rfb1=) 15.e4 (15.Rfc1 b5=) 15...Qd7 (15...bc5 16.bc5 de4 17.Qe4=) 16.e5+= Be7 17.Kh1 f6 18.Ng1 (better is 18.ef6!? Bf6 19.Qe2+=) 18...fe5–/+ 19.de5 (19.cb6 e4 20.Qe3 cb6–/+) 19...bc5 20.bc5 Bc5 21.Nf3 Na5 22.Bd4 (22.Ng5 Rf5 23.Rac1 Be7–/+) 22...Bd4 23.Nd4 Nc4 24.Qh3 Rae8 25.f4 c5 26.Nb3 Qb5 27.f5? (27.Qd3 Rb8 28.Nd2 Nb2–+) 27...Ne5 (better is 27...ef5!? 28.a4 Qb4 29.Rae1–+) 28.a4 Qc6 (better is 28...Qb6 29.Qc3 Ng4 30.Nc5 ef5 31.Rac1–+) 29.Rfc1? (better is 29.fe6 Rf1 30.Rf1–+) 29...Rf5 (better is 29...c4!? 30.Nd4 Qb6 31.Qc3–+) 30.Nd4 cd4 Exploits the pin 31.Rc6 Nc6 32.Qd3 (32.Qa3 a5–+) 32...a5 (32...Nb4!? 33.Qd2 a5 34.g4–+) 33.Qb5 Ref8?? (33...Rc8 34.Re1 e5 35.g4=) 34.Kg1?? (better is 34.g4 Na7 35.Qa6+/–) 34...Ne5 35.Qa5 Nc4 36.Qa6 R5f6 37.Qa7 (37.a5 d3 38.h4 d2–+) 37...e5 (37...d3 38.Qd4 d2 39.h3–+) 38.Qb7 (38.h3 Ne3–+) 38...Ne3 The mate threat is Rf1 39.h3 e4 (39...Rf2 40.g4–+) 40.a5 d3 41.a6 d2 42.a7 Rf1 Black prepares d1 43.Rf1 Rf1 44.Kh2 Threatening mate... how? 44...d1Q (better is 44...Rf8 45.a8Q Ra8 46.Qa8 Kf7 47.Qa7 Ke6 48.Qe3 d1Q 49.Qb6 Kf5 50.Qf2 Ke5 51.Qg3 Ke6 52.Qg7 h5–+) 45.a8Q Rf8 46.Qf8?? (better is 46.Qaa7 Nf1 47.Kg1 Ng3 48.Kh2=) 46...Kf8–+ 47.Qb8 Ke7 48.Qe5 Kf7 49.Qc7 (49.Qf4 Ke6 50.Qe3 Qb1–+) 49...Kf6 50.Qd6 Kf5 51.Qf8 (51.Qd7 Kg6 52.Qd6 Kg5 53.Qe7 Kh6 54.Qd6 g6 55.Qf4 Kg7 56.Qe3–+) 51...Ke6 52.Qe8 (52.Qg8 Kd6 53.Qg7 Qd2–+) 52...Kd6 53.Qf8 Kc6 54.Qc8 (54.Qg7 Qd2–+) 54...Kb5 55.Qb7 Kc4 56.Qc6 Kd3 57.Qa6 Nc4 58.Qb7 d4 59.Qd5 e3 (59...e3 60.Qf5 Kc3–+) 0–1. Trkn – Arno, itsyourturn.com, 2000.

5.d4 e6 6.Nf3 Nf6 7.Be2 =.

5.d4 e6 6.Nf3 Bg4 (6...Nf6 7.Be2=) 7.Be2 h6 (7...Nf6 8.Nbd2=) 8.Nbd2 Nf6 9.0–0 Bd6 10.c4 dc4 11.Bc4 (11.Nc4 0–0+=) 11...Bf3 (11...0–0!?=) 12.Nf3 (worse is 12.gf3 Nd5=) 12...0–0 13.Bd3 Be7 14.Qc2 Ng4 (14...Nd5 15.Rfd1+=) 15.h3 (15.Bh7 Kh8 16.Be4 a5+/–) 15...Nf6+/– 16.Rfd1 b5?? (better is 16...Qb8+/–) 17.Qc6+– Qd6 18.Rac1 Qc6 (18...Ra7 19.Qc5 Qc5 20.dc5+– (20.Rc5?! Bc5 21.dc5 Rc8+–)) 19.Rc6 Bd6 20.e4 Nh7 (20...Ne8 21.Re1+–) 21.e5 Be7 22.Bh7 (22.Rc7!? Bd8 23.Rb7 Ng5+–) 22...Kh7 23.Rc7 Bd8 24.Rc6 (24.Rd7 Rc8 25.d5 ed5 26.R1d5 f6+–) 24...Bg5 25.Ng5 hg5 26.Rdc1 Kh6 (26...Rfd8 27.R1c5+–) 27.Rc7 (better is 27.d5!? Rfe8+–) 27...Kh5 28.g4 Kg6 29.Kg2 f6 (29...Rfd8 30.R7c6+–) 30.R1c6 Rfe8 (30...Rf7 31.Rf7 Kf7 32.d5 ed5 33.ef6 gf6 34.Rf6 Ke7 35.Rf5+–) 31.Rd6 (31.d5 f5+–) 31...fe5 (31...Rec8 32.Rc5 Kf7 33.Rd7 Kg6 34.d5 Rc5 35.bc5 ed5 36.Rd6+–) 32.de5 a5 (32...Kh7 33.Rcc6 Rec8 34.Rc8 Rc8 35.Ra6+–) 33.Bc3 (33.Rb7 ab4 34.ab4 Rac8+–) 33...a4 34.Rdd7 (34.Rb7 Rac8 35.Bd2 Rb8 36.Rb8 Rb8 37.Re6 Kf7+–) 34...Rg8 35.Re7 (35.Bd4 Rac8+–) 35...Ra6 (35...Rae8 36.Rb7+–) 36.Rb7 Rc6 37.Bd2 Rc2 (37...Kh6 38.Rb5 Rd8 39.Rbb7 Rd2 40.Rg7 Rf2 41.Kf2 Rc2 42.Ke3 Rc3 43.Ke4 Rc4 44.Kd3 Rc3 45.Kd2 Rc2 46.Kd1 Rc1 47.Ke2 Rc2 48.Kf1 Rc1 49.Kg2 Rc2 50.Kg1 Rc1 51.Kh2 Rc2 52.Kh1 Rc1 53.Kg2 Rc2 54.Kf3 Rc3 55.Ke4 Rc4 56.Ke3 Rc3 57.Kd4 Rc4 58.Kc4=) 38.Be3 (38.Re6!? Kh7 39.Bg5 Kh8+–) 38...Ra2 (38...Rc6 39.Rb5 Kh6 40.Ra5+–) 39.Re6 Kh7 40.Bg5 (40.Bg5 Kh8 41.Ree7+–) 1–0. Fournier,Frederic – joliva, Active, 2009.

5.Nf3 Nf6 6.Be2 h6 7.d3 e6 8.0–0 Be7 9.Nbd2 0–0 10.c4 dc4 11.Nc4 b5 12.Nce5 Ne5 13.Be5 (13.Ne5 Bd6+=) 13...Nd7 14.Bb2 Bf6 (14...c5 15.bc5 Nc5 16.Nd4=) 15.Qc2 Bb2 16.Qb2 Qf6 (16...c5 17.Rac1 Rc8 18.bc5 Nc5 19.d4=) 17.Qf6 Nf6 18.d4 Rad8 (18...Nd5 19.Ne5+=) 19.Rac1 (19.Rfc1 Nd5+/–) 19...Nd5+= 20.Rfd1 Rc8 (20...Rd6 21.Nd2+=) 21.Bd3 (21.Rc6 Rfd8+/–) 21...Bd3+= 22.Rd3 Ne7 (22...Rfd8 23.Ne5+=) 23.Ne5 Rfd8 24.Rdc3 Nd5 25.Rc6 f6 (25...Ra8!?+/–) 26.Nf3 Kf7 27.e4 Nf4 28.Rc7 Rc7 29.Rc7 Kg6 (29...Kg8 30.Kf1+/–) 30.Rc6 (30.Kf1+–) 30...Ra8 (better is 30...Ne2!? 31.Kf1 Nd4 32.Nd4 Rd4 33.Re6 Kf7 34.Ra6 Re4 35.Ra7 Kg6+–) 31.g3+– Ne2? (31...Nd3 32.Re6 a5 33.Rb6+–) 32.Kg2 (32.Kf1 Nd4 33.Nd4 e5+–) 32...Nd4? (32...Rd8 33.Re6 Nd4 34.Ra6 Nc2+–) 33.Nd4 e5 34.Nf3 (34.Ne6 Kf7+–) 34...a5 (34...Kh7 35.g4+–) 35.ba5 (better is 35.Ne5!? Kh7 36.Nd3 Rd8+–) 35...Ra5 36.Rb6 (36.Ne5 Kh7 37.Nf7 Ra3+–) 36...Ra3 (36...Kh7 37.h4+–) 37.Rb5 (37.Ne5 Kh7 38.Nd7 Ra7+–) 37...Ra4 38.Nd2 (38.Nh4 Kh7 39.Rb7 Re4+–) 38...Rd4 39.Rb2 h5 40.f3 Kg5 (40...Kf7 41.f4+–) 41.Kf2 g6 (41...h4 42.gh4 Kh4 43.f4+–) 42.Nb3 (42.Ke3 Rd6+–) 42...Rd3 (42...Rb4 43.Ke3+–) 43.Nc5 Rc3 44.Ne6 Kh6 45.Rd2 f5 (45...Rc6 46.Nd8 Ra6 47.Nf7 Kg7 48.Rd7 Ra2 49.Kg1+–) 46.ef5 gf5 47.Nd8 (47.Re2 e4 48.fe4 fe4 49.Re4 Rb3+–) 47...e4 (47...Kg7 48.Nb7+–) 48.fe4 fe4 49.Kg2 Kg5 50.Re2 e3 (50...Kf5 51.Nf7 Rd3 52.Rf2 Ke6 53.Ng5 Ke5 54.Re2+–) 51.Ne6 (51.Kf3 Kf5+–) 51...Kf6 52.Nf4 Kg5 53.Kf3 h4 54.Re3 (54.g4 Ra3+–) 54...Rc4 (54...Re3 55.Ke3 hg3 56.hg3+–) 55.Re2 (55.Ne6 Kf5+–) 55...hg3 (55...Rc3 56.Kg2+–) 56.hg3 Rc3 57.Re3 Rc4 58.Ne6 Kf6 59.Nf4 Kg5 60.Nd3 Kf6 61.Nf2 Rc5 (61...Kg6+–) 62.Ne4 Ke5 63.Nc5 1–0. Fournier,Frederic (1775) – Specialmind, Active, 2006.

5.Nf3 Nh6 6.Be2 Qd6 7.0–0 Bg4 (7...e5 8.b5 ab5 9.Nc3=) 8.Nc3 Nf5 (8...e5 9.h3 Bf5 10.b5 ab5 11.Nb5=) 9.h3+= White fights for the Initiative 9...Bf3 10.Bf3 (worse is 10.gf3 e5+=) 10...e6 11.e4 Nh4 (11...de4!? 12.Be4 Nfd4+=) 12.ed5+/– ed5 (12...Nd4!? 13.Bh5 g6+/–) 13.Bd5 Be7 14.b5 Ne5? (better is 14...Nd8+–) 15.d4 (15.Bb7?! Rb8 16.Be4 ab5+–) 15...Neg6 16.Bb7 Rd8 17.ba6 Nf4 (17...0–0 18.a7+–) 18.Qg4 Nfg6 (18...Nhg6 19.a7 0–0 20.Qf3+–) 19.Nd5 (19.g3 Qb6 20.Rab1 h5+–) 19...0–0 (19...h5 20.Qd1+–) 20.Rfe1 Bf6 (20...f5 21.Qh5 Ng2 22.Kg2+–) 21.g3 Rde8 (21...Rb8 22.Nf6 Qf6 23.gh4 Nh4+–) 22.Re8 Re8 23.gh4 (23.a7 h5 24.Nf6 Qf6+–) 23...Bh4 24.a7 f5 (24...c6 25.Ne3 Qc7 26.a8Q Ra8 27.Ba8+–) 25.Qf5 Rf8 (25...c6 26.Bc8 Bf2 27.Kh1+– (27.Kf2?! Qh2 28.Kf1 Qh1 29.Kf2 Qh2 30.Kf1 Qh1 31.Kf2 Qh2=)) 26.a8Q Bf2 27.Qf2 (27.Kf2 Ra8) 27...Ra8 28.Ba8 Nh4 29.Qh4 Qg6 30.Kh1 Qc2 (30...Qg5 31.Qg5 h6 32.Nf6 Kf8 33.Qg6 gf6 34.Re1 f5 35.Re8) 31.Qd8 Kf7 32.Qe7 Kg6 33.Nf4 Kf5 (33...Kh6 34.Qh4) 34.Qe5 1–0. b4_player – opponent, gamecolony.com, 2007.

5.f4 d4 6.ed4 Nd4 7.d3 =.

5.f4 e6 6.Nf3 Nf6 7.Be2 Be7 8.0–0 0–0 9.Nh4 Ne4 10.Nf5 ef5 11.d3 Nd6 12.Rf3 (12.Be5 Re8=) 12...Bf6 13.d4 Ne7 14.Rh3 Ne4 (14...Qd7 15.Bd3=) 15.c4 Re8 16.Nc3 c6 (16...Nc3 17.Bc3 Qd7 18.Rc1=) 17.c5 Ng6 18.Ne4 fe4 (worse is 18...Re4 19.Bd3+/–) 19.a4 Qe7 20.a5 Qd7 21.Qe1 Ne7 22.g4 g6 23.Qg3 Rad8 24.Bc3 Qc8 (24...Bg7 25.Rf1+=) 25.Rf1+= Qb8 26.Be1 Qc7 27.Qg2 Kh8 28.g5 White gets in control 28...Bg7 29.Bg4 f5 30.gf6 Bf6 31.Bg3 Nf5 32.Bf5 gf5 33.Rh5 Rg8 34.Rf5 The passed pawn on f4 quickly leads to threats 34...Rg6 35.Rh5 Rdg8 36.Qh3 R8g7 37.Kh1 Qf7 (37...Qe7!?+/–) 38.f5+– Rg4 39.Rh6 Kg8 40.Rh7 Rh7 Threatening mate: Rxh3 41.Qg4 Qg7 (41...Rg7 42.Qf4+–) 42.Qg7 (42.Qg6 Bg5 43.Be5 Qg6 44.fg6 Re7+–) 42...Kg7 43.Kg2 Bg5 44.Bf4 Rh5 45.Kg3 Kf6?? (45...Bd8+–) 46.Be5 Kf7 47.Kg4 (47.Kg4 Rh6 48.Kg5+–) 1–0. Blankenberg,Bruno (1960) – Erbe,Holger (1665), DESC, 2000.

4.a3 Nf6

5.Nf3 Qd6 =.

5.Nf3 e6 6.d4 Bd7 7.Nbd2 Bd6 8.c4 dc4 9.Nc4 0–0 10.Nd6 cd6 11.Be2 d5 12.0–0 Rc8 13.Rc1 Ne7 14.Ne5 Ng6 15.Rc8 Qc8 16.f3 Ne5 (16...Qe8 17.Bd3+=) 17.de5 Ne8 18.Qd4 Nc7 19.Rc1 Bc6 20.Qc5 Qd7 21.a4 White plans b5 21...Rc8? (better is 21...Rd8+/–) 22.b5!+– ab5 23.ab5 Nb5 24.Bb5 Qc7 25.Bd3 Qd7 26.Qa3 b5 (26...Qd8 27.Bd4+–) 27.Qd6 f6 (27...Qb7 28.Bd4+–) 28.e4 fe5 (28...b4 29.ed5 ed5 30.Qb4 fe5 31.Be5+–) 29.Qe5 de4 30.Bb5 Bb5 (30...e3 31.g4 e2+–) 31.Rc8 1–0. Speedy – Macho, internet, 2017.

5.Nf3 e6 6.Be2 Be7 7.0–0 0–0 8.d3 Bd6 9.g3 (9.c4!?+=) 9...Re8 10.e4 (10.c4!?=) 10...de4–/+ 11.Nd4 (11.de4!? Ne4 12.c4–/+) 11...Nd4–+ 12.Bd4 ed3 13.Qd3 Be7 (13...e5 14.Bb2–+) 14.Qe3 Nd5 15.Qc1 Bf6 16.Bf6 Qf6 (16...gf6?! 17.c4 Nb6 18.Rd1=) 17.Nd2 b6 18.Ne4 Qe7 (18...Qg6 19.Bf3 Bb7 20.Qg5–/+) 19.Qd2 (19.c4!? f5 20.Ng5–/+) 19...Bb7–/+ 20.Bf3 Rab8 21.Nc3 Nc3 22.Qc3 Bf3 23.Qf3 c5 24.bc5 Qc5 25.c3 Rbd8 26.Rfc1 Rd5 27.Qe4 Re5 28.Qd3 Rf5 29.Rc2 Rd5 30.Qa6–/+ Red8 31.Qf1 Rd2 32.Rd2 Rd2 33.c4 Rd4 34.Qg2 Rc4 35.Qa8 Qc8 36.Qc8 Rc8 37.a4 g6 38.a5 Ra8 39.a6 Ra7 40.Kg2 Kf8 41.Kf3 Ke7 42.Ke4 Kd6 43.Kd4 f6 44.Kc4+= Kc6 45.f4 b5+= 46.Kb4 Kb6 47.Kb3? Ra6–+ 48.Rd1 Kc5 49.Rc1 Kd5 50.Kb4 Ke4 51.Kb5 Rd6 52.Rc2 Kf5 53.Kc5 Rd1 54.Kc6 Kg4 55.Re2 Rh1 56.Re6 f5 57.Re2 Kh5?? 58.Kd5 Kg4 59.Ke6?? Kh3–+ 60.Kf6 Rh2 61.Rh2 Kh2 62.Kg7 Kg3 0–1. Valpa – Johnalle, playchess.de, 2004.

5.Nf3 Bf5 6.c4 dc4 7.Bc4 e6 8.d4 b5 (8...Bd6 9.0–0=) 9.Bd3 Bd3 10.Qd3 Be7 (10...Bd6 11.0–0=) 11.Nbd2 0–0 12.Rc1 Nb8 13.0–0 Nbd7 14.Ne4 (14.e4 a5 15.Bc3 c6+=) 14...Qc8 (14...a5 15.Nf6 Nf6 16.ba5 Ra5 17.Ne5+/–) 15.Nf6 Bf6 16.Rfd1 Nb6 17.Nd2 Rd8 18.Qe2 Qb7 19.f3 (19.Qg4 a5+=) 19...Rd5 20.e4 (20.Rc2 Rd7=) 20...Rdd8 (20...Bd4 21.Bd4 Rd4 22.Nb3 Rd1 23.Rd1–/+) 21.e5 (21.Qf2!?=) 21...Bg5+= 22.Rc2 Rd7 (22...Bd2!? 23.Qd2 Nc4+=) 23.Ne4= Be7 24.Rdc1 Rc8 25.Nc5 Bc5 26.dc5 Rcd8?? (better is 26...Nc4+=) 27.cb6 (better is 27.c6 Qa7 28.cd7 Nc4 29.Qf2 Qf2 30.Kf2 Rd7 31.g4+–) 27...Qb6 28.Kf1 Rc8 (28...Qb7 29.Qe1+–) 29.Rd2 (29.Rc6 Qa7+–) 29...Rd2 (29...Rcd8 30.Rd7 Rd7 31.Qe4+–) 30.Qd2 h6 31.Rd1 (31.Qd7 Qb8+–) 31...Qb8 32.Qd7 Kh7 (32...c5+–) 33.Qf7 1–0. Fournier,Frederic – HApadua, Active, 2007.

5.Nf3 g6 6.c4 Be6 7.cd5 Bd5 (7...Nd5?? 8.Bh8 Bf5 9.b5 ab5 10.Bb5+–) 8.Nc3 Be6 9.d4 b5?? (better is 9...Bg7+=) 10.d5!+– Bd5 (10...Bd5 11.Nd5 Combination; 10...Nd5 11.Nd5 Combination) 11.Nd5 Nd5 (11...Bg7+–) 12.Bh8 f6 (12...e6 13.Qc2 Ncb4 14.ab4 Bb4 15.Nd2+–) 13.Qc2 Qd7 14.e4 Nf4 (14...Nb6 15.Rd1 Qe6 16.Rc1+–) 15.g3 Ne6 (15...Kf7 16.gf4 Kg8 17.h4 Kh8 18.Rd1+–) 16.Rd1 Qc8 (16...Ned4 17.Nd4 Nd4 18.Rd4 Qd4 19.Qc6 Kf7 20.Qa8 Kg8+–) 17.Qc6 Kf7 18.Bh3 (18.Bh3 Rb8 19.Rd7+–) 1–0. Janek – Gustave, internet, 2016.

5.Nf3 h6 6.Be2 e5 (better is 6...Qd6!?= 7.d4 (7.0–0 e5 8.Nc3 e4 9.Ne1 Be7 10.d3 Be6 11.Na4 b6 12.de4 de4=) 7...Bg4 (7...e6 8.Nbd2 Be7 9.c4 0–0 10.c5 Qd7 11.0–0 b6 12.Bd3 Bb7+=; 7...Bf5 8.Nbd2 e6 9.c4 dc4 10.Nc4 Qd5 11.Rc1 Rd8 12.0–0 Be7=) 8.Nbd2 e6 9.c4 Be7 10.c5 Qd7 11.0–0 0–0 12.Ne5 Be2=) 7.Ne5+/– Ne5 8.Be5 Bd6 9.Bd4 0–0 (9...b6 10.Nc3 c6 11.0–0 0–0 12.Na4 Rb8+/–) 10.Nc3 (10.0–0 Re8 11.Nc3 a5 12.b5 c5+/–) 10...c6 (10...Be6 11.0–0 Ne4 12.Ne4 de4+/–) 11.0–0 Re8 (11...Bf5 12.f3 Re8+/–) 12.Bd3 (12.f4 Qe7+/– (12...Bf5+/–); 12.Na4 Bc7+/–) 12...Be5 (12...a5 13.b5+=; 12...Qe7+=) 13.Be5+/– Re5 14.Ne2 Bf5? (better is 14...Bg4+/–) 15.f4+– Bd3 (15...Re4 16.Be4 de4 17.Nd4+–) 16.fe5 (16.cd3?! Re8+=) 16...Be2 17.Qe2 Nd7 (17...Ne4 18.c4+–) 18.d4 Qg5 (18...f6 19.c4 Qe8 20.cd5 cd5 21.Qa2+–) 19.e4 Nb6 (19...Qg6 20.Rf4+–) 20.Rf5 (20.ed5 Nd5 21.c4 Qe3 22.Qf2 Qf2 23.Rf2 Nb6+–) 20...Qe7 21.Raf1 Rf8 22.ed5 Nd5 23.c4 Nc7 24.Qe4 Ne6 (24...Qe6 25.Qc2+–) 25.d5 cd5 26.cd5 Ng5 27.Qe3 g6 (27...Nh7 28.Qb6+–) 28.Rf6 Kg7 (28...Qd8 29.Qd3 Nh7+–) 29.e6 Nh7 (29...Qf6 30.Rf6 Kf6 31.Qd4 Ke7 32.Qc5 Ke8+–) 30.Rf7 Rf7 31.Rf7 Qf7 32.ef7 Kf7 33.Qb6 Nf6 34.Qe6 1–0. pierre – Ultimate Fighter, internet, 2011.

5.Bf6 ef6 6.d4 Bd6 7.h3 0–0 8.c3 Re8 9.Be2 f5 10.Nf3 Qf6 11.0–0 Bd7 12.Nbd2 f4 13.Kh1 (13.ef4 Bf4 14.Bd3+=) 13...Ne7 (better is 13...fe3 14.fe3 Qh6–+) 14.e4= de4 15.Ne4 Qg6 16.Nd6 Qd6 17.Ne5 Nd5 18.Rc1 Re6?? (better is 18...Be6=) 19.Bg4 (better is 19.Nd7 Qd7 20.Bg4+–) 19...Rh6?? (better is 19...f3 20.g3 Nb6 21.Nd7 Nd7 22.Be6 Qe6 23.Qf3 Qh3 24.Kg1 c6+–) 20.Nd7+– Nf6 21.Nf6 Qf6 22.Qf3 c6 23.Rce1 Qd6 24.Re4 g6 25.Qf4 (worse is 25.Rf4 f5 26.Bf5 gf5+–) 25...Qf4 26.Rf4 g5 27.Re4 Kf8 28.Rfe1 Rd6 29.Re7 b6 30.Kg1 Rad8 (30...a5 31.Rb7 ab4 32.ab4+–) 31.Bh5 (31.Ra7!? Rb8+–) 31...R8d7 32.Rd7 Rd7 33.Kf1 Kg7 (33...h6 34.Be2+–) 34.Re3 (34.Re8 c5 35.dc5 bc5+–) 34...Kf6 (34...Kf8 35.Be2+–) 35.Bg4 (35.Re8 a5+–) 35...Rd6 36.Be2 Kg6 (36...b5 37.Re8+–) 37.Ba6 h5 (37...b5 38.Rd3+–) 38.Bc4 b5 39.Bd3 Kh6 40.Re8 f6 (40...Kg7 41.Re5 Kh6 42.Rc5+–) 41.Rh8 (better is 41.Re7 f5 42.Bf5 Rg6+–) 41...Kg7 42.Rh5 (42.Rh5 Kf7 43.h4+–) 1–0. Heat – javaman, Live Game Caissa's Web, 2004.

5.g3 e6 6.Nf3 Bd6 7.Bg2 0–0 8.0–0 Bd7 9.d4 Ne4 10.Ne5 f5 11.f3 Nf6 12.f4 Be8 13.Bf3 Ne4 14.Nd2 b5 15.c3 Be7 16.Ne4 fe4 17.Be2 Ne5 18.de5 (18.fe5 Rf1 19.Bf1 a5=) 18...Bg6 19.a4 c6 20.Bg4 Bf5 21.h3 Qe8 22.Bf5 ef5 23.Qd4 Qg6 24.Kh2 Qe6 25.a5 Rfc8 26.Rg1 c5 27.bc5 Bc5 28.Qd2 Ba7 29.g4 Rc7?? (29...fg4 30.Rg4 Bc5 31.Kg2–/+) 30.Rac1?? (better is 30.gf5!? Qc6 31.f6+/–) 30...Rac8 (30...fg4 31.Rg4 Bc5 32.Rd1–/+) 31.g5 (31.gf5 Qf5 32.Qd5 Kh8=) 31...g6 32.Rc2 Rc4 33.Ra1 Qc6 34.Rac1 b4! 35.Kg3?? (35.cb4 Qa4 Double attack (35...Rc2 Pinning; 35...Rc2 Deflection; 35...Qa4 Decoy)) 35...Qc5 (35...b3 36.Kh2–+) 36.h4 (36.Ba1 Qe3 37.Qe3 Be3 38.Re1–+) 36...b3 37.Qd4 Rd4 38.ed4 Qa5 (38...bc2?! 39.dc5 Rc5 40.Rc2 Ra5 41.Bc1–+) 39.Ra1 (39.Rd2–+) 39...Qa1 40.Ba1 bc2 41.Bb2 Bd4! 42.cd4 c1Q (better is 42...Rb8 43.Bc1 Rb1 44.Bd2–+) 43.Bc1 Rc1 44.Kf2 a5 45.Ke2 a4 46.Kd2 Rc6 47.Ke3 a3 48.Kd2 (48.e6 a2 49.e7 Kf7 50.h5 a1Q 51.e8Q Ke8 52.Kf2 Rc2 53.Kg3 Qc3 54.Kh4 Rh2) 48...a2 49.Ke2 a1Q 50.Kf2 (50.h5 Rc2 51.Ke3 Qc3) 50...Rc2 51.Ke3 Qg1 0–1. willi_weizenkeim – ghpacer, playchess.de, 2003.

5.Nf3 Bg4

6.Be2 e6 7.0–0 Bd6 =.

6.Be2 e6 7.c4 Bd6 (7...dc4 8.Bc4 Bd6 9.h3=) 8.0–0 (8.c5 Be7=) 8...dc4 9.Bc4 a5 (9...e5 10.h3 Bh5 11.d3=) 10.b5 Ne7 (10...Ne5 11.Be2 Ned7 12.h3=) 11.h3+= Bh5 12.Nc3 (12.Bf6 gf6 13.d4 Rg8+=) 12...0–0 13.g4 (13.d3 c5=) 13...Bg6 14.Nh4 Qd7 (14...Rc8 15.d3=) 15.Ng6 (15.d3 c6=) 15...Ng6 (worse is 15...fg6 16.Qb3 Kf7 17.f4+/–) 16.d4 e5 (16...Rfd8 17.Qf3 c6 18.Rfc1=) 17.Ne2 (17.Qf3 ed4 18.ed4 Rab8=) 17...e4 18.Ng3 Nh4 19.Be2 (19.Kh1 Rfe8=) 19...Rfe8 20.Rc1 (20.Qc2 Nf3 21.Kg2 h5+=) 20...Nd5 21.Qb3 Bg3 22.fg3 a4 23.Qa2 Nf3 (23...Ne3?! 24.gh4 Nf1 25.Rf1=) 24.Kg2?? (24.Bf3!? ef3 25.Rc5 Ne3 26.Rf3+=) 24...Ng5 (better is 24...Ne3 25.Kf2 Nf1 26.Kf1 h5–+) 25.Rh1 Re6?? (25...Re6 26.Rc5 Rd6+=; better is 25...Ne3 26.Kf2 Nd5–+) 0–1. Everett – Wochnik, corr, 1995.

6.Be2 e6 7.h3 Bf3 8.Bf3 =.

6.h3 Bf3 7.Qf3 e5 =.

6.Be2 Bf3

7.Bf3 e6 8.0–0 +=.

7.Bf3 e5

8.d3 Bd6 9.Nd2 0–0 10.c4 A) 10...dc4 11.Nc4 (11.Bc6 bc6 12.Nc4 Re8 13.0–0 Qd7 14.Rc1 Re6 15.Qc2) 11...Qd7 12.0–0 Qe6 13.Rc1 h6 14.Nd6 Qd6 15.Rc5; B) 10...d4 11.0–0 (11.c5 Be7 12.Nc4 Nd5 13.0–0 Qd7 14.Qb3 Rad8 15.ed4) 11...Re8 12.c5 Bf8 13.Nc4 Qd7 14.Qd2 Nd5 15.g3.

8.d3 Bd6 9.Nd2 a5= 10.b5 (10.c4 ab4 (10...e4 11.de4 Ne5 12.Qb3 Nf3 13.gf3 ab4 14.cd5 ba3 15.Ba3) 11.cd5 Ne7 12.ab4 Ra1 13.Qa1 Ned5 14.Be5 0–0 15.Bf6) 10...Ne7 11.c4 (11.0–0 0–0 12.c4 Qd7 13.Qc2 b6 14.g3 Rfc8 15.Rab1) 11...c6 (11...0–0 12.Rc1 c6 13.0–0 Qd7 14.c5 Bb8 15.b6) 12.Qc2 (12.Qa4 0–0+= 13.bc6 bc6 14.0–0 Qc7 15.Rab1; 12.0–0 0–0 13.Rc1 Nf5 14.cd5 cd5 15.e4) 12...0–0 (12...cb5 13.cd5 Rc8 (13...Ned5 14.Qb3 Bc7 15.Ne4) 14.Qb3= Qd7 15.Ne4) 13.c5+= Bb8 14.a4 (14.bc6 bc6 15.0–0) 14...Ne8 (14...cb5 15.ab5 Qd7 16.Qa4+=; 14...Qd7 15.Qb3) 15.e4 (15.0–0 Qd7+=) 15...f5 16.0–0 Ng6 17.Rfe1 Kh8 (17...fe4 18.de4 d4 19.Red1+=) 18.Rac1 (better is 18.ed5 cd5 19.Rad1+/–) 18...Qg5? (better is 18...fe4 19.de4 d4+=) 19.bc6 (19.ed5 cb5 20.ab5 b6+–) 19...fe4 (19...bc6 20.ed5 cd5 21.Bd5 Ra7+–) 20.de4?? (better is 20.cb7 Ra6 21.de4+–) 20...bc6 (20...Nh4 21.cb7 (21.ed5?! Rf3 22.g3 bc6=) 21...Rf3 22.g3+/–) 21.ed5 Nh4 22.Kf1 (22.Be4!? Nf6 23.f4 Qf4 24.d6+–) 22...Rf3+/– 23.gf3 cd5 24.Qd3 Nf6 25.Ke2 (25.Qe3 Qg6 26.f4 Ng2+=) 25...Ng2 26.Qb5 Ba7 (better is 26...Ne1 27.Ke1 Ba7=) 27.Bc3 (27.Qb7 Rb8 28.Qa7 Rb2 29.Qa5 h6+/–) 27...Rb8 (better is 27...Ne1!? 28.Ke1 Rf8+=) 28.Qa5+= Ra8 29.Qc7 (29.Rf1 Nf4 30.Kd1 Nd3+/–) 29...d4 (29...Ne1 30.Ke1 d4 31.Qb7+=) 30.Qb7 Re8 (30...Rd8 A) 31.Qa7?? A) 31...Ne1 32.h4 (32.Ke1 dc3 33.Nb3 Nd5–+) 32...Qh4 33.Ke1 dc3 34.Nf1–+; B) 31...dc3 32.Qb8 Rb8 33.Rc3 Rb2–+; B) 31.Ba5 d3 32.Kd1 Ne1 33.Ke1= (33.Bd8?? Qg1 34.Nf1 Qf1–+; 33.Qa7 Qg1 34.Bb4 Nf3 35.Nf1 Qf1 36.Be1 Qe1)) 31.Ba5 (better is 31.Qa7 dc3 32.Rc3+/–) 31...Ne1 32.Re1 Bc5 33.Qc6 (better is 33.Qb5!? d3! 34.Qd3–/+) 33...d3!–+ 34.Kd1 (34.Kd3 Bf2 Discovered attack (34...Bf2 Deflection)) 34...Bf2 35.Ne4 Qf5 (better is 35...Qg2 36.Nf2 Qf2–+) 36.Nf2+= e4 37.Re3 (better is 37.fe4 Qf2 38.Bb6 Qf3 39.Kd2–+) 37...Qa5?? (better is 37...Rc8 38.Qa6 Nd5–+) 38.Ne4= Rb8 39.Rd3 Qf5 (39...Ne4 40.Qe4 Qg5 41.Rd2=) 40.Qc7 (40.Qd6 Ra8 41.Nf6 gf6 42.a5+/–) 40...Rf8 (better is 40...Re8 41.Qc5 Qh3 42.Nf6 Qf1 43.Kc2 gf6=) 41.Qc5+– Qc5 42.Nc5 Kg8 (42...Ra8 43.Rb3+–) 43.a5 Rc8 44.a6 Kf7 (44...Rc5 45.Rd8 Kf7 46.a7+–) 45.Nd7 (45.a7 Ra8 46.Ra3 Nd5+–) 45...Ra8 46.Nf6 Kf6 47.Ra3 Ke5 48.Ke2 (48.h4!?+–) 48...Kd5+/– 49.Ke3 (49.f4 Kc5+/–) 49...Kc6+= 50.Kf4 Kb6 51.a7 (51.Ke5 Re8 52.Kd5 Ra8+=) 51...Kb7 (51...Ra7 52.Ra7 Ka7 53.Kf5+–) 52.Kg5 (better is 52.h4 Rf8 53.Ke5+/–) 52...Kb6? (52...Ra7 53.Ra7 Ka7+–) 53.h4+– Kc6 54.h5 Kd6 55.h6 Ke6 (55...gh6 56.Kh6 Ke5+–) 56.hg7 Kf7 57.Kh6 Kg8 58.Rb3 1–0. Mamuzic,Mirko (2230) – Dragovic,Momcilo (2385), 10th Battle of Senta, 2006.

8.d3 Bd6 9.Nd2 b5 10.0–0 0–0 11.c3 (11.c4 bc4 12.dc4 e4 13.cd5 ef3 14.dc6 fg2 15.Kg2) 11...a5 12.Qb3 Ne7 13.e4 c6 14.a4 ba4 15.Ra4.

8.d3 Bd6 9.Nd2 b5 10.c3 A) 10...0–0 11.0–0 (11.Qc2 Qe7 12.0–0 h6 13.c4 bc4 14.Nc4 Qd7 15.Nd6) 11...a5 12.Qb3 Be7 13.a4 Rb8 14.ba5 ba4 15.Qc2; B) 10...a5 11.0–0 (11.a4 Qb8 12.ab5 Qb5 13.c4 Qb4 14.Rb1 Qc5 15.0–0) 11...0–0 12.Qb3 Ne7 13.h3 Qb8 14.e4 c6 15.Rfe1; C) 10...Qe7 11.c4 (11.e4 d4 12.0–0 0–0 13.c4 Qd7 14.Qc2 h6 15.Rac1) 11...bc4 12.Nc4 0–0 13.Rc1 Rfc8 14.0–0 Rab8 15.Nd2.

8.d3 Bd6 9.Nd2 b5 10.c4 bc4 11.Nc4 0–0 12.Rc1 Rc8 13.0–0 Qd7 14.Nd6 cd6 15.Qb3.

8.d3 Bd6 9.Nd2 b5 10.g4 h6 11.c4 bc4 12.Qa4 Qd7 13.dc4 a5 14.c5 Be7 15.b5.

8.d3 Be7 9.c4 0–0 (9...dc4!? 10.Bc6 bc6 11.dc4 Qd1 12.Kd1 e4+=) 10.cd5+/– Nd5 11.Qb3 Nf6 12.Bc6 bc6 13.Be5 c5 14.bc5 Bc5 (14...Nd7 15.Bd4 Bc5 16.Bb2+=) 15.Qc3 Qe7 (15...Be7!?+/–) 16.Bf6+– gf6 (16...Qf6 17.Qf6 gf6 18.Nd2+–) 17.Nd2 Qe5? (better is 17...f5+–) 1–0. Machete – capablanka, ICC, 2003.

4.b5 ab5

5.Bb5 Ra5 =.

5.Bb5 Qd6 6.a4 Bd7 7.Ba3 (7.Nf3!?=) 7...Qg6+= 8.Qf3 e6 9.Bf8 Kf8 10.d3?? (better is 10.Bd3 Qg5 11.Nc3=) 10…Ne5 (10...Ne5 11.Qf4 Bb5–+) 0–1. katchum (2535) – mpenga (2550), net–chess.com, 2013.

5.Bb5 e6 6.c4 Nge7 7.Nf3=.

5.Bb5 e6 6.Bc6 bc6 7.Nf3 f6=.

5.Bb5 e6 6.Ne2 Bd7=.

5.Bb5 e6 6.Nf3 Bd7 7.Nc3 Nf6 8.0–0 Bd6 9.d4 0–0 10.g3 (10.Be2 Na7=) 10...Nb4 (10...Na5 11.Bd3=+) 11.a3 (11.Be2 b6=+) 11...Bb5 12.Nb5 Nc6 13.Nd6 Qd6 14.Rb1 Ne4 15.Nd2 (15.Ne5 Ne5 16.de5 Qc6–/+) 15...Na5 (15...Nd2!? 16.Qd2 Na5–/+) 16.Ne4=+ de4 17.Bc3 (better is 17.f3=+) 17...b6?? (better is 17...Qc6 18.Bb4 Rfd8–/+) 18.Bb4+/– c5 19.dc5 Qd1 20.Rfd1 bc5 21.Bc5 Rfc8 22.Bb4 h6 23.c3 Nc4 24.Ra1 Nb2 (24...Ra4 25.Rd4+=) 25.Rd4+/– Na4 (25...f5 26.g4+/–) 26.c4 (26.Re4 Nc3 27.Bc3 Rc3+/–) 26...f5 27.Rb1 Rab8 28.Rf1 (28.Rc1 Nc5 29.Rc3 Nd3+/–) 28...Nb2+= 29.Bd6 (better is 29.c5 Nd3 30.f3 Nc5 31.Bc5 Rc5 32.fe4=) 29...Rb3?? (better is 29...Ra8=) 30.Rb1+– Rc6 (30...g5 31.Bb4+–) 31.Bb4 e5 32.Rd2 Nc4? (32...Rb4 33.ab4 Nc4+–) 33.Rd8 (< 33.Rb3 Nd2 34.Bd2 Kf7+–) 33...Kf7 34.Rb3 Nb6 (34...g6 35.Rc3+–) 35.Kg2 (35.Bc5 Rc5 36.Rb6 Rc1 37.Kg2 Rc7+–) 35...Na4 (35...Kf6 36.h3+–) 36.Rd7 Ke6 (36...Kf6 37.Ra7 Nb6 38.Bf8+–) 37.Rg7 Nb6 (37...Kd5 38.Ra7 Nb6 39.Rb1+–) 38.Rh7 Nd5 39.Rh6 Nf6 (39...Kd7 40.Rh7 Ke6 41.Ba5+–) 40.Rc3 (better is 40.Ba5 Kd5 41.Rb1+–) 40...Rc8 (40...Rc3 41.Bc3 Kf7+–) 41.Rc8 Kf7 (41...f4 42.gf4 ef4 43.Rc6 Kd7 44.Rcf6 f3 45.Kg3 Kd8 46.Rh7 Ke8 47.Rf8) 42.Rc7 Ke6 43.Re7 (43.Be7 Kf7 44.Bf6 Ke6 45.Bh8 Kd5 46.Rcc6 f4 47.Rhd6) 43...Kd5 44.Rf6 Kc4 (44...f4 45.Rb6 f3 46.Kh3 Kc4 47.Rc7 Kd3 48.Rd6 Ke2 49.Rd2 Kf1 50.Rc1) 45.Rc6 (45.Rc7 Kb5 46.Rb7 Kc4 47.Rc6 Kb3 48.Bd6 Ka2 49.Rc2 Ka1 50.Be5) 45...Kb3 (45...Kb5 46.Rc5 Ka4 47.Bc3 Kb3 48.Rb7 Ka2 49.Rb2 Ka1 50.Be5 f4 51.Rc1) 46.Rd7 (46.Bd6 Ka4 47.Rb7 Ka5 48.Bc7 Ka4 49.Ra6) 46...Ka4 (46...f4 47.Bd6 f3 48.Kh3 Ka2 49.Rb7 Ka1 50.Rc1 Ka2 51.Rc2 Ka1 52.Be5) 47.Ra7 (47.Rb7 f4 48.Bc3 f3 49.Kh3 Ka3 50.Ra6) 47...Kb3 (47...Kb5 48.Raa6 f4 49.gf4 ef4 50.ef4 e3 51.Bc3 ef2 52.a4) 48.Rc3 (48.Bd6 Ka2 49.Rb7 Ka1 50.Rc2 f4 51.Be5) 48...Ka2 (49.Bd6 Kb1 50.Rb7 Ka1 51.a4 Ka2 52.Ra3) +–. kamera – NN, GameColony.com, 2002.

5.Bb5 Nf6 6.Nf3 Bf5 7.Ne5 (7.0–0 Bg4=) 7...Qd6 8.d4?? (8.0–0 Qb4 9.Nc3 Qb2 10.Nc6 Bd7+= (10...Bc2? 11.Nb4 c6 12.Nc2+–)) 8...e6 (better is 8...Qb4 9.Nc3 Qb2 10.Bc6 bc6–+) 9.Ba3 (better is 9.a4 Qb4 10.Bc3+=) 9...Ra3–/+ 10.Na3 Qa3 11.Nc6 (better is 11.0–0!? Ne4 12.Qh5–+) 11...bc6 12.Bc6 Nd7?? 13.Bd7 Kd7 14.0–0 Bd6 15.Qh5 Bg6 16.Qe2 c6 17.c4 Bc7 18.cd5 ed5 19.Qg4 f5 20.Qg5 Qd6 21.g3 Bd8–+ 22.Qf4 Qf4 23.ef4? Bh5 24.Rfe1?! Bf3 25.a4 Ba5 26.Re5? g6?? 27.h4? Re8?? 28.Rb1 Re5 29.de5? Ke6 30.Rb7? Bd1 31.Rh7? Bb6?? 32.Rh6 Ba4?? 33.Rg6+/– Kf7 34.Rc6?? Bc6–+ 35.Kh2 Bf2 36.Kg2 Bd4 37.Kf1 Kg6 38.Ke1 Kh5 39.e6 Kg4 40.e7 Kg3 41.Kd2 Kf4 42.Kd3 Bf6 43.e8Q Be8 44.h5 Bh5 (45.Kd2 Kg3–+) 0–1. stoker – bushstartsww3, Live Game Caissa's Web, 2005.

5.Bb5 Bd7

6.Nc3 e6 7.a4 Bb4 (7...Nf6 8.Nge2=) 8.Nge2 (better is 8.Nd5!? Bf8 9.Nf4+/–) 8...Nf6= 9.0–0 Ne4 10.Ne4+/– de4 11.Bg7 Rg8 12.Bh6 (12.Bb2 Qg5 13.Ng3 e5+=) 12...e5 13.Ng3 (13.Rb1 Be7 14.Ng3 Rg6=) 13...Qh4 (13...Qf6 14.Bc6 bc6=+ (14...Qc6?! 15.Qh5 Ra5 16.Bg5=+)) 14.Nf5?? (better is 14.Qh5 Qh5 15.Nh5=) 14...Bf5–+ 15.c3 Bd6 16.a5 Qh6 17.Qa4 Bh3 18.Bc6 bc6 19.Qc6 Ke7 20.g3 Bf1 21.Kf1 Qh3 22.Kg1 Qd7 23.Qb7 c6 24.Qb6 Rgb8 (25.Rb1 Rb6 26.ab6 Bc5–+) 0–1. gtate (1730) – bmacfie, net–chess.com, 2002.

6.Nc3 Nf6 7.Nf3 e5 (7...e6!?=) 8.Bc6+= Bc6 9.Ne5 Bb4 (9...Qd6 10.Ne2+=) 10.Nc6+/– White is in command 10...bc6 11.a3 Bc3 12.Bc3 Qd6 (12...0–0 13.d3+/–) 13.Qf3+– Ra3 14.Bf6 gf6 15.Ra3 Qa3 16.Qf6 Qc1 17.Ke2 Qh1 18.Qh8 Kd7? (better is 18...Ke7 19.Qe5 Kf8+–) 19.Qh7 Qg2 (19...Ke7 20.Qh4 Ke8 21.Qh8 Kd7 22.Qg7 Qh2 23.Qf7 Kd8 24.g4+–) 20.Qf7 Kc8 (20...Kd6 21.Qf6 Kc5 22.d4 Kb6 23.h4+–) 21.Qe6 Kb7 22.h4 Kb6 (22...Qh1 23.Qg4+–) 23.h5 Qg5 (23...Kb5 24.h6 Qg5 25.Qh3+–) 24.h6 (better is 24.Qg6!? Qh4+–) 24...Qh5 25.f3 (25.Kd3 Qh1 26.c3 Qb1 27.Ke2 Qb5 28.d3 Qb2 29.Kf3 Qb1+–) 25...Qh2 26.Kd3 Kb5 (26...Qh1+–) 27.f4 (27.c4 dc4 28.Qc4 Kb6+–) 27...c5 (27...Qh1 28.c4 dc4 29.Qc4 Kb6 30.Qe6+–) 28.Qd7 (better is 28.c4 dc4 29.Qc4 Kb6 30.Qb3 Ka7 31.Qa2 Kb6 32.Qb2 Ka6 33.Qg7 c4 34.Kc2+–) 28...c6 (28...Kb6 29.Qd5 Qh6+–) 29.Qb7 Ka5 30.h7 Qh1 31.Qa8 Kb4 Do you see the mate threat? 32.c3 (better is 32.Qb8!? Ka5 33.h8Q Qf1 34.Kc3 Qa1 35.Qb2 Qb2 36.Kb2 c4+–) 32...Kb3 33.Qb8 Ka2 34.h8Q c4 35.Kc2 Qe4 36.Kc1 1–0. Trkn – Pavel, internet, 2001.

6.Nf3 Nb4 7.Bd7 Qd7 8.a3 Nc6 9.0–0 Nf6 10.Qe2 Qd6 11.c4 (11.Qb5 Ra7=) 11...e6 (11...dc4 12.Qc4 Ra5 13.Qb3=) 12.Nc3 dc4 13.Nb5 Qd8 14.Qc4 Bd6 15.Rfc1 0–0 (15...e5 16.Nd6 Qd6 17.Qb5+/–) 16.Nd6 cd6 17.Nd4 d5 18.Nc6 (18.Qd3 Ne5 19.Qb5=) 18...bc6 (better is 18...dc4!? 19.Nd8 Rfd8=) 19.Qc6+/– Ra7 (19...Ne4 20.d3 Nd2 21.Qc3 Nf3 22.gf3 Qg5 23.Kh1+–) 20.Bd4 Rd7 (20...Ra8 21.d3+/–) 21.a4 (21.Bf6 gf6 22.d4 Ra7+–) 21...Ne4 22.d3 Nd6 (22...Rd6 23.Qc7 (23.de4?! Rc6 24.Rc6 de4=) 23...Ng5 24.Qd8 Rfd8 25.f4+–) 23.a5 Nc8 24.a6 (24.Rc2 Na7 25.Qa6 Qe7+–) 24...Na7 25.Ba7 (25.Qc3 Qg5+–) 25...Ra7+/– 26.Rcb1 Qf6 27.d4 h5 (27...Rfa8 28.Qd6 Rc8 29.Rb8+–) 28.Rb7+– Rfa8 29.Ra7 Ra7 30.Qb7!? Ra6?? (30...Rb7 31.ab7) 31.Ra6 h4 32.Qb8 Kh7 33.Qf4 (33...Qf4 34.ef4+–; 33.Ra8!? Kg6+–) 1–0. Kreuzer,Uwe – Siegfried, Heidelberg, 1989.

6.Nf3 Nf6 7.0–0 g6 8.Bc6 (8.Nc3 Na5+=) 8...Bc6 9.g4 (better is 9.Bf6!? ef6 10.Nd4=) 9...Bg7 10.g5 Nh5 11.Bg7 Ng7 12.d4 Nf5 13.Nc3 h6 14.Re1 hg5 15.Ng5 e5! 16.f4 (16.de5 Qe7 (16...Qg5)) 16...f6 (16...e4!? 17.Qe2–+) 17.Ne6 Qe7 18.Nc5 Qh7 19.Qe2 0–0–0 (19...b6 20.Nd3 e4 21.Nb4–/+) 20.a4 ed4 21.ed4 Nd4–+ 22.Qg4 Bd7 23.Qg2 Qh3 24.Rf1?? Qg2 25.Kg2 Bh3 26.Kg3 Bf1 27.Rf1 Nc2 28.Rf2 Nd4 29.Rd2 Nf5 30.Kg2 c6 31.a5 Rh4 32.a6 ba6 33.Na6 Rf4 34.Ne2 Ra4 35.Nc5 Rc4 36.Ne6 Re8 37.N6f4 g5 38.Nh5 Nh4 39.Kf2 f5 40.h3 Rh8 41.Nhg3 f4 42.Nf1 f3 43.Nd4 c5 44.Nf3 Nf3 45.Kf3 Rh3 46.Kg2 g4 47.Nh2 Rh2! 48.Kh2 Rd4 49.Re2 c4 50.Kg2 c3 51.Kf1 Kc7 52.Rc2 Rd3 53.Ke2 Rh3 54.Kd1 Kc6 55.Ke1 d4 56.Rg2 g3 57.Kd1 d3 58.Ke1 Rh1 59.Rg1 Rg1# 0–1. wlittle (2120) – flgs (1980), net–chess.com, 2004.

6.Nf3 Nh6 7.0–0 Na5 A) 8.Be2 e6 (8...f6 9.Nc3 e6 10.Rb1 Nc4 11.Bc4 dc4=; 8...Bg4 9.d3 f6 10.h3 Bh5 11.Nc3 e5=; 8...Bf5 9.Nc3 e6 10.d3 Bg4 11.Rb1 Be7=) 9.Ne5 f6 10.Nd7 Qd7 11.Re1 Bd6=; B) 8.Bd7 Qd7 9.d3 f6 10.Nc3 e6 11.e4 d4=.

6.Nf3 Nh6 7.0–0 Nb4 8.Nc3 Bb5 9.Nb5 Ra5 10.a4 c6 11.Nbd4 Qa8 =.

6.Nf3 Nh6 7.0–0 Ne5 8.Bd7 (8.Ne5 Bb5 9.d3 f6 10.Nf3 e5 11.Qe2 Bd6=) 8...Nd7 9.Nc3 e6 10.e4 de4 11.Ne4 Nf5 =.

6.Nf3 Nh6 7.0–0 e6 8.Re1 (8.Nc3 Nf5 9.Re1 Be7 10.e4 de4 11.Ne4 0–0=) 8...Nf5 (8...Nb4 9.Nc3 Bb5 10.Nb5 Ra5 11.Nc3 Nc6=; 8...Ra5 9.Be2 f6 10.d4 Qa8 11.Nc3 Bd6=) 9.Nc3 Nd6 10.a4 Be7 11.e4 de4=.

6.Nf3 Nh6 7.0–0 Nf5 8.d4 (8.d3 e6 9.a4 Be7 10.e4 de4 11.de4 Nd6=; 8.Nc3 e6 9.Bd3 Nd6 10.a4 Be7 11.Nb5 0–0=) 8...b6 (8...e6 9.Nbd2 Be7 10.a4 0–0 11.e4 Nd6=) 9.c4 (9.Ba3 Ne5 10.Bd7 Nd7 11.c4 dc4+=) 9...Be6?? (better is 9...Nd6 10.Bc6 (10.cd5 Nb5 11.dc6 Bc6+=) 10...Bc6 11.Ne5 Nc4=) 10.Bc6 (10.Bc6 Bd7 11.Ba8 Qa8 12.cd5 Qd5 13.Nc3+–) 1–0. Buss,Michael – Weinholtz,Harold, USCF87CA183, 1987.

6.Nf3 Nh6 7.Nc3 Na5 8.Bd3 (8.Be2 Bg4 9.Rb1 e6 10.h3 Bf3 11.Bf3 Nc4=; 8.Bd7 Qd7 9.Ne5 Qd6 10.Nb5 Qb6 11.a4 c6+=) 8...Bg4 9.h3 Bh5 10.e4 d4 11.Nb5 Bf3 =.

3.e3 Bd7

4.a4 e6 5.Nh3 Nf6 (5...Bb4?? 6.Bg7 e5 7.Bh8 Bh3 8.gh3+–) 6.b5 c6 (6...Bd6 7.Be2=+) 7.Bd3 (7.Nf4 ab5 8.ab5 Ra1 9.Ba1 cb5=+) 7...ab5 8.ab5 Ra1 9.Ba1 cb5 10.0–0 b4 11.c3 (11.Ng5 h6 12.Nf3 Bd6=+) 11...Qa5 (11...e5 12.cb4 e4 13.Bc2 Bh3 14.gh3–/+) 12.Bb2 Qa2 13.Qc1 Nc6 14.c4 (14.cb4 Nb4 15.Bb5 Nc6=+ (< 15...Bb5 16.Qc8 Ke7 17.Qc5 Ke8 18.Qb5 Nd7 19.Bg7 Bg7 20.Qb4+=)) 14...Be7 (14...Bd6 15.f4–/+) 15.c5 (15.cd5!? ed5 16.Ng5–/+) 15...0–0 16.Ng5 (16.Be2 Rb8–+) 16...e5 17.e4 h6 18.ed5 Qd5 19.Bc4 Qc5 20.Nf3 e4 21.d4 ed3 22.Bd3 Qc1 23.Rc1 Be6 24.Nbd2 Rc8 25.h4 Rd8 26.Bb5 Bd5 27.Re1 Kf8 28.Nh2 Na7 29.Ba4 Bc6 30.Bc6 bc6 31.Ndf3 c5 32.Ne5 Nd5 33.h5 Nf4 34.g4 f6 35.Ng6 Ng6 36.hg6 c4 37.Bc1 c3 38.Be3 Nc6 39.Rb1 Ne5 40.f4 Ng6 41.Bb6 c2 (42.Rf1 Rd1–+) 0–1. tschulz – UPS, MySchachOpen, 2005.

4.Nf3 c6 5.Be2 f6 6.0–0 (6.a3 e5=) 6...e5 7.a3 Nh6 (7...a5 8.b5=) 8.c4 Ng4 (better is 8...dc4 9.Bc4 Bg4+=) 9.Ne5?? (better is 9.d4 e4 10.Nfd2+=) 9...Ne5–+ 10.Be5 (10.cd5 cd5 11.Nc3 Be6–+) 10...fe5 11.f4 (11.Nc3 a5–+) 11...e4 (11...ef4 12.ef4 Qf6 13.d4–+) 12.cd5 cd5 13.Qb3 Bc6 14.Bg4 (14.d4 Nd7–+) 14...Nd7 15.Nc3 Nf6 16.Be6 Qd6 17.f5 g6 (17...Qe5 18.Rac1–+) 18.a4 (18.Rab1–+) 18...gf5 19.Bf5 Qb4 20.Qb4 Bb4 21.Be6 (21.Rab1 a5–+) 21...Bc3 22.dc3 Rf8 23.c4 (23.a5 Ke7 24.Bf5 Bb5–+) 23...Ke7 (23...dc4 24.Bc4 Ng4 25.Rf8 Kf8 26.Ra3–+) 24.cd5 Nd5 25.Bf5 (25.Bd5 Bd5 26.Rfd1–+) 25...Ne3 (25...Ne3 26.Be4 Rf1 27.Rf1 Nf1 28.Bc6 bc6 29.Kf1 c5–+) 0–1. Trkn – Wursten, itsyourturn.com, 2000.

4.Nf3 e6 5.Be2 Bd6?? (better is 5...Nf6=) 6.Bg7+– Nf6 (6...f6 7.Bh8 Kf7 8.c4+–) 7.Bh8 Nc6 (7...Bb4 8.c3 Ba5 9.Qc2+–) 8.a3 Qe7 9.c4 Ne5 (9...0–0–0 10.Bf6 Qf6+–) 10.c5 Nf3 11.Bf3 Be5 12.d4 Bd4 (12...0–0–0 13.Bg7 Rg8 14.de5 Rg7 15.ef6 Qf6 16.Ra2+–) 13.Qd4 e5 14.Qh4 0–0–0 (14...Ng4 15.Qh7 e4+–) 15.Bf6 Qf8 16.Bd8 Bb5 17.Qe7 (better is 17.Be7 Qe8 18.Nc3 e4 19.Bg4 Bd7 20.Nd5 Bg4 21.Qg4 Kb8+–) 17...Qd8 18.Bg4 Bd7 19.Bd7 Qd7 20.Qf8 Qd8 21.Qf7 e4 22.Nc3 c6 23.Rd1 (better is 23.Qh7 Qf6 24.Qg8 Kc7+–) 23...a5 24.Ne4! ab4 (24...de4 25.Qe6 Double attack (25.Rd8 Pinning; 25.Rd8 Deflection; 25.Rd4 Decoy)) 25.Nd6 Qd6 26.cd6 Kb8 27.ab4 Ka7 28.Qc7 h5 (28...c5 29.Ra1#) 29.Ra1# 1–0. Fournier,Frederic (1875) – Seac'h,Christian, FRA Ch (Team) PIC3 Senlis–PontSainteMax, 2012.

4.Nf3 Nf6 5.a3 =.

3.e3 e5

4.b5 b6 5.Be5+= ab5 6.Bb5 Bd7 (6...c6 7.Bd3+=) 7.Nc3+/– c6 8.Be2 Be7?? (better is 8...Nf6+/–) 9.Bg7+– Bf6 10.Bh8 Bh8 11.d4 Be6 12.Nf3 c5 13.0–0 Bf6 (13...Ne7 14.Bb5 Nbc6 15.Ng5+–) 14.Ne5 (better is 14.Bb5 Kf8+–) 14...c4 (14...Ne7 15.f4 Nbc6 16.Bb5 Be5 17.de5+–) 15.f4 Ne7 (15...Ra3 16.f5 Bc8 17.Nd5 Qd5 18.Bc4+–) 16.Bg4 Nf5 (16...Qc8 17.Be6 Qe6 18.Nb5+–) 17.Qf3 Nd7 (17...Ra5 18.Qh3 Ng7 19.Qh7+–) 18.Bf5 Bf5 19.Qd5 Ne5 (19...Be6 20.Qe4 Be7 21.Nc6+–) 20.fe5 Be6 (20...Bg5 21.Rf5 Be3 22.Kf1 Qd5 23.Nd5+–) 21.Qc6 Bd7 22.Qf3 Ra7 23.Nd5 Bc6 24.Nf6 Ke7 25.Qc6 c3 26.Nd5 Kf8 27.Qh6 Ke8 28.Nf6 Ke7 29.d5 1–0. marekt – leodian, chessworld.net, 2015.

4.Be5 Nc6 5.Bb2 Nb4 =.

4.Be5 Qg5 5.Bc7+/– Nc6 (5...Bb4 6.c3 Bf8 7.Nf3+/–) 6.Nf3 (6.a3 Qe7 7.Bf4 g5+–) 6...Qf6 (better is 6...Qe7!? 7.Bf4 Qb4+/–) 7.Nc3+– Nb4 8.a3 Nc6 (8...d4 9.ab4 (< 9.Nd4 Nc6 10.Nd5 Qg5+–) 9...dc3 10.Bb5 Ke7 11.0–0+–) 9.Nd5 Qf5 10.Nb6 Ra7 11.Bd3 (11.Nc8?! Qc8 12.Bb6 Ra8+–) 11...Qe6 12.Ng5 Qh6 (12...Qg4 13.Qg4 Bg4+–) 13.Bf4 Bc5 (13...Be6 14.Nf7! Qf6 15.Nh8 g6 16.Ng6 hg6+–) 14.Nc8 1–0. Wall,Bill – Walnut, internet, 2003.

3.e3 e6

(--> 1.b4 d5 2.Bb2 e6 3.e3 a6).

4.a4 Nf6 5.b5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4).

4.c4 Nf6 5.a3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 a6 5.c4).

3.e3 Bf5

(--> 1.b4 d5 2.Bb2 Bf5 3.e3 a6).

4.Nf3 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.Nf3 a6).

3.e3 f6

4.a3 c6 5.c4 dc4 6.Bc4 Nd7 7.d4 e5 8.de5 Ne5 9.Nf3?? (better is 9.Qd8 Kd8 10.Be5 fe5 11.Nf3+=) 9...Qd1–+ 10.Kd1 Nf3 (better is 10...Nc4 11.Bc3 Be6–+) 11.gf3= Bf5 12.e4 Bg6 13.Nc3 Ne7 14.Kc2 Rd8 15.Rad1 Rd1 16.Rd1 Bh5 17.Rd3 (better is 17.Be6+=) 17...g6?? (better is 17...Ng6 18.Ne2 Ne5 19.Be5 fe5=) 18.Be6 Bg7 19.Na4 b5?? (better is 19...g5+–) 20.Nc5 Ng8 (20...g5 21.Na6 Nd5 22.ed5 Bg6 23.dc6 Ke7+–) 21.Na6 Nh6 (21...Bg4 22.Nc7 Kf8 23.Rd8 Ke7 24.Rd7 Kf8 25.Rf7) 22.Nc7 Ke7 (22...Kf8 23.Rd8 Ke7 24.Rd7 Kf8 25.Bd4 Nf7 26.Rf7 Kg8 27.Rf6) 23.Bb3 (23.Rd7 Kf8 24.Bd4 Nf7 25.Bc5 Nd6 26.Bd6) 23...Nf7?? (23...Rc8 24.Ne6 Bh8 25.Nf4+–) 24.Na6 (better is 24.Bd4 Kd7 25.Ne6+–) 24...Ne5 (better is 24...Ra8!? 25.Nc5 Rd8+–) 25.Be5 fe5 26.Nc5 Rd8 (26...g5 27.Rd7 Kf6 28.Rd6 Ke7 29.Re6 Kd8 30.Rc6+–) 27.Rd8 Kd8 28.Ne6 Ke7 29.Ng7 Bf3 30.Kd3 Bg2? (30...Bg4+–) 31.Ne6 Bf1 (31...h6 32.h4+–) 32.Ke3 Bc4 (32...h6+–) 33.Bc4 bc4 34.Ng5 h6 35.Nf3 Kd6 36.Nd2 c3 37.Nb3 g5 38.h3 h5 39.f3 h4 40.Kd3 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

4.Nc3 c6 5.d4 b5 6.a4 e5 (6...e6!?=) 7.ab5+/– cb5 (7...Bb4 8.de5 Qe7 9.ef6 Nf6 10.bc6+=) 8.de5 fe5? (better is 8...Bb7 9.Na2 Nc6+=) 9.Qh5 g6 (9...Ke7 10.Qe5 Be6 11.Bb5 Nf6+–) 10.Qe5 Be7 (10...Qe7 11.Qh8 Qb4 12.Bb5 Bd7 13.Ba3+–) 11.Qh8 Bb4 (11...Kf8 12.Nb5! Bb4 13.c3 Bc5 14.Qh7 Bf5+–) 12.Qg8 Kd7 13.Qd5 Ke8 14.Qe4 Qe7 15.Qa8 Bc3 16.Bc3 Bb7 17.Qb8 Kf7 18.Bh8 (better is 18.Bb5 ab5 19.Ra7 b4+–) 18...Bg2 19.Bg2 1–0. rekt – Vago, internet, 2001.

4.c4 dc4 5.Bc4 b5 6.Qf3+= c6 7.Bg8 Rg8 8.Qh5 g6 9.Qh7 Rg7 10.Qh4 a5 11.ba5 Ra5 12.d4 Ra4 (12...Be6 13.a3+=) 13.Nc3 (13.Ne2 b4+/–) 13...Rb4+= 14.Rb1 c5 (14...Bf5 15.a3 Rc4 16.Rd1+=) 15.Nge2 (15.Nf3 Qa5 16.0–0 Rb2 17.Rb2 Qc3 18.Rb5+/–) 15...Bf5 (15...cd4!? 16.ed4 Bf5+=) 16.e4+– cd4? (better is 16...Bd7 17.dc5 Na6+–) 17.ef5 Nc6 (17...Na6 18.Bc1 Qa5 19.Rb4 Nb4 20.Ne4 Qa2 21.Nc5+/–) 18.Qe4 Qd7? (18...Ne5 19.Nd1 Qa5+–) 19.Nd5 Rc4 (19...gf5 20.Qf3 Rc4+–) 20.Nf6 (20.Nf6 Kd8 21.Nd7 Kd7 22.Qd5 Kc7 23.Nd4 Nd4 24.Bd4 Rd4 25.Qd4+–) 1–0. Wall,Bill – Guest6900, internet, 2001.

4.c4 dc4 5.Bc4 e5 6.a3 =.

4.c4 dc4 5.Bc4 Nh6 6.Ne2 (6.d4 Nc6=) 6...Bg4 (6...b5 7.Bb3=) 7.0–0 Nc6 (7...e5 8.f3 Bc8 9.a3=) 8.a3 e5 9.Nbc3 Nf5 (9...Qd7 10.d3=) 10.f3 Bh3?? (better is 10...Bh5+=) 11.gh3+– g5 (11...g5 12.f4 Nd6+–; 11...Qd7 12.Nd5+–). pcmvr (2225) – valerypavlovich (2100), net–chess.com, 2006.

4.c4 e5 5.cd5 Qd5 6.Nc3 =.

3.e3 Nf6

4.a3 e6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 a6).

4.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 a6 4.e3).

4.Nf3 e6 5.a3 c5 6.bc5 Bc5 7.Be2 0–0 8.0–0 Nc6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3 Nc6 7.Be2 0–0 8.0–0 a6).

3.e3 h6

4.Nf3 Qd6 5.a3 e5 (better is 5...Nd7!?+=) 6.Be5+/– Qc6 7.Nd4 Qd7 8.c4 f6 (8...Ne7 9.cd5 Nd5 10.Qf3+/–) 9.Bg3 dc4? (better is 9...h5!? 10.h4 c5 11.bc5 Bc5+–) 10.Bc4 g5 (10...Qg4 11.Qb3 Qe4 12.Bf7 Kd8+–) 11.Qh5 (11.Be6!? Qe6 12.Ne6 Be6 13.Bc7 Nc6+–) 11...Kd8 12.Ne6 Ke7 (12...Qe6 13.Be6 Be6+–) 13.Nc7 Qc7 (13...Kd8 14.Na8 Bd6+–) 14.Bc7 (14.Bc7 Be6 15.Be6 Ke6 16.Qg4 f5 17.Qc4 Kd7 18.Be5+–; 14.Qf7 Kd8 15.Bc7) 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

4.Nf3 Bg4 5.Be2 e6 6.h3 Bh5 7.0–0 Nf6 8.a3 c5 9.bc5 Bc5 10.d3 0–0 11.Nbd2 Nc6 12.Nh4 (12.a4 Rc8=) 12...Be2+= 13.Qe2 Rc8 14.c4 (14.Nhf3 Qe7=) 14...Bb6 (14...dc4 15.Nc4 b5 16.Nd2+=) 15.cd5 Nd5 16.Qg4 Nf6 17.Qg3 (17.Bf6 Qf6 18.Nhf3 Bc7=) 17...Nh5 18.Qg4 Nf6 (18...Qd3 19.Rfd1 Qb5 20.Rab1+=) 19.Qe2 Bc7 20.Nhf3 Nd5 21.Rfd1 Ba5 22.Nc4 b5 23.Na5 Na5 24.Rac1 Rc1 (24...Qd6 25.Nd4=) 25.Rc1+= (25.Bc1? Nc3 26.Qc2 Nd1 27.Qd1 Qd6–+) 25...Nb3 26.Rd1 Qa5 (26...Qc8!?=) 27.Qc2+/– Qa4 28.e4 (28.Rb1 Na5 29.Qa4 ba4+/–) 28...Nf4 (better is 28...Ne7=) 29.Qc3?? (better is 29.Be5 Ng6 30.Rb1+=) 29...Ne2–+ 30.Kf1 Nc3 31.Bc3 Nc5 32.Rd2 Qa3 33.Bd4 (33.Bb2 Qb4 34.Ke2 Rd8–+) 33...Qc1 34.Ke2 Nb3 35.Rb2 (35.h4–+) 35...Nd4 (35...Nd4 36.Nd4 Qb2 37.Ke3 Qc1 38.Ke2 Rd8–+) 0–1. Fournier,Frederic (2040) – lukilukbis (1805), Active echecs21.com, 2004.

3.Nf3 Nc6

4.a3 b5 5.d3 Bb7 6.g3 e6 7.Bg2 Nf6 8.0–0 Be7 9.Re1 0–0 10.Nbd2 Bd6 11.e4 de4 12.Ne4 Ne4 13.Re4 Ne7 14.Rg4 Ng6 15.h4 f5 16.Rg5 Be7 17.Rh5 Bf6 18.Ng5 Bb2 19.Bb7 Rb8? (better is 19...Ba1 20.Ne6 Qd7 21.Nf8 Rf8 22.Qa1 c6 23.Ba6 Ra8–/+) 20.Ne6+– Qf6 21.Nf8 Nf8 22.Bd5 Kh8 23.Rb1 g6 24.Rg5?? h6–/+ 0–1. Jokmin,Alex – Venturas,Bob, RN–2009–0–00250, 2010.

4.a3 d4 5.c3 dc3 6.Bc3 Qd6 7.e3 Bg4 8.Be2 b6 (8...Rd8 9.d4=) 9.0–0 (9.Qa4 Bc8+=) 9...f6 (9...e5 10.Qc2+=) 10.h3 h5 (10...Bf5 11.d4+/–) 11.Nh2 (better is 11.d4+/–) 11...Bh3?? (better is 11...Be2 12.Qe2 g5+=) 12.Bh5 Rh5 (12...g6 13.Bg6 Kd8 14.gh3 Rh3+–) 13.Qh5 g6 (13...Kd7 14.Qh3 e6 15.d4+–) 14.Qg6 Kd7 15.Qg8 (better is 15.gh3 Nh6+–) 15...Bg2 (15...Bf5+–) 16.Qg2 e5 17.f4 Be7 18.fe5 Ne5 (18...Qe6 19.b5 ab5+–) 19.Qa8 Ng4 20.Ng4 Threatening mate. how? 20...Qg3 21.Qg2 (21.Qg2 Qg2 22.Kg2+–) 1–0. markmooney – gummi57, ChessWorld.net, 2005.

4.a3 d4 5.e3 de3 6.fe3 Bf5 7.Be2 Qd7 8.d4 Nf6 9.c4 Ng4 10.Qd2 Qe6 (10...e6 11.0–0+=) 11.Bc1 (11.d5 Qe3 12.dc6 Qf2 13.Kd1 Rd8+=) 11...0–0–0 12.Nc3 f6? (12...Nce5 13.e4 Bg6+–) 13.h3 (13.h3 Nge5 14.Nh4 Nd4 15.ed4 Nd3 16.Kf1 Rd4 17.g4+/– (worse is 17.Nf5 Qf5 18.Bf3 Rc4+=)) 1–0. Michail – Knightprancer, playchess.de, 2004.

4.a3 d4 5.e3 e5 6.ed4 ed4 7.Bc4 h6 (better is 7...Qf6!?=) 8.0–0 Be7 9.Re1 Nf6 10.Qe2 b5 (10...Bg4 11.b5 Bf3 12.Qf3 ab5 13.Bb5+/–) 11.Bb3 0–0 12.d3 (12.Qd3!?+/–) 12...Bg4 (12...Re8 13.Qd1+=) 13.Nbd2 (better is 13.h3 Bf3 14.Qf3=) 13...Ne5?? (better is 13...Re8 14.Ne4 a5=) 14.h3 (better is 14.Qe5 Re8 15.Qd4 (15.Bd4?! Bd6+=) 15...Qd4 16.Bd4+–) 14...Nf3+/– 15.Nf3 Bf3 16.Qf3 c5 17.bc5 Bc5 18.Re2 a5 19.Rae1 b4 20.a4+= Qc7 21.Qg3 Qg3+= 22.fg3 Rfe8 23.Re8 Re8 24.Re8 Ne8 25.Kf2 Nd6 26.Kf3 Nf5 27.g4 Ne3 28.g3 Nd1+= 29.Ba1 Nc3 30.Kf4 Kf8 31.Ke5 Ke7 32.Bc3 bc3 33.Kd5 Bb6 34.Kc6 Ba7 35.Kb5 Bb8 36.Ka5 Bg3 37.Kb5 f6 38.a5 Kd7 39.a6 Kc8?? 40.Kb6+– Bc7 41.Kc6 Bb8 42.Be6 Kd8 43.Kb7 (43.Kb7 Ba7 44.Ka7+–) 1–0. Fournier,Frederic (1790) – goyoms (1725), Active, 2007.

4.a3 e5 5.Ne5 Ne5 6.Be5 f6 7.Bb2 Ne7 8.e3 Qd6 9.Nc3 Bf5 10.Bd3 Bd3 11.cd3 d4 12.Ne2 de3 13.de3 0–0–0 14.Bd4 Nf5 15.Rc1 Nd4 16.Nd4 g6 17.0–0 Qe5 18.Qb3 Bd6 19.Nf3 Qh5 20.h3 g5 21.Qe6 Kb8 22.Qf6 g4 23.Qg5 Qg5 24.Ng5 Rhg8 25.Nf7 gh3 26.g3 Rd7 27.Nd6 Rd6 28.d4 Rh6 29.Kh2 Kc8 30.e4 Re8 31.e5 Rd8 32.Rfd1 Rf8 33.f4 Kd7 34.d5 Rg8 35.f5 Rh5 36.d6 Rf5 37.Rc7 Kd8 38.e6 Rfg5 39.Rdc1 1–0. marekt – famfam (1935), ICC, 2003.

4.a3 Bf5 5.d3 e6 6.g3 Be7?? (better is 6...Nf6=) 7.Bg7+– Bf6 8.Bh8 Ba1?? (better is 8...Bh8 9.c3 Qf6+–) 9.Ba1 Qd7 10.Bg2 0–0–0 11.0–0 f6 12.Nbd2 e5 13.c4 d4 14.b5 ab5 15.cb5 Na7 16.a4 Kb8 17.Qb3 Be6 18.Qb4 Ne7 19.b6 Nac6 20.bc7 Qc7 21.Rb1 (better is 21.Qb2+–) 21…Nb4–+ 0–1. Jokmin,Alex – Venturas,Bob, RN–2010–0–00308, 2010.

4.a3 Bf5 5.e3 e6 6.Be2 Qd6 7.0–0 (7.Nh4 Bg6=) 7...Nf6 (7...e5 8.c4 dc4 9.Bc4=) 8.Nc3 (8.Nh4 Bg6=) 8...e5 9.b5 ab5 10.Nb5 Qe7 11.Nh4 (11.d4 e4 12.Ne5=) 11...Bg6 (better is 11...Bc8!?=) 12.f4+/– ef4 13.Rf4 0–0–0 (13...Ra5 14.Bc3+/–) 14.Qf1 (better is 14.Bf6 gf6 15.Rb1+/–) 14...Be4?? (better is 14...Ne5+/–) 15.Rf6+– (15.Bf6?! gf6 16.Nf5 Qe5+/–) 15...d4 (15...Kb8 16.Rf4 Bc2 17.Rc1+–) 16.Rf4 (better is 16.Bg4!? Kb8 17.Rf7 Qg5+–) 16...de3 17.d3 (17.Rf7?! Qh4 18.Rc7 Kb8+–) 17...Bd5 18.Nf5 Qg5 (18...Qd7+–) 19.Rg4 Qh5 20.Rg3 (20.Rg3 Qg6 21.Rg6 hg6 22.Qf4+–) 1–0. Wall,Bill – Dule, chess.com, 2010.

4.a3 Bf5 5.e3 e6 6.Be2 Nf6 7.Nh4 Bg6 8.0–0 (8.d3 d4 9.c4 de3 10.fe3 Bd6=) 8...Be7 (8...d4 9.Bf3+=) 9.d3 0–0 10.Ng6 fg6 11.c4 dc4 12.dc4 e5 (12...Qd1!? 13.Rd1 Ne4+=) 13.b5 ab5 14.cb5 Na5 15.Be5 Qd1 16.Rd1 c6 17.Nc3 Nb3 (better is 17...Rfd8+–) 18.Bc4 Kh8 19.Bb3 c5 (19...Ba3 20.h3+–) 20.Nd5 Bd8 (20...Ng4 21.Bc7 Bd8 22.h3 Bc7 23.Nc7 Nf2 24.Rf1+–) 21.Bd6 Re8 22.Bc5 Ne4 23.Bd4 Rf8 (23...Ng5 24.Nb6 Bb6 25.Bb6+–) 24.b6 (better is 24.f3 Nf6+–) 24...Nf2 (24...Ra5+–) 25.Rf1 Bh4 26.Nc7 Ra5 27.g3 Nh3 28.Kg2 Rf1 29.Rf1 Ng5 30.Rf8# 1–0. kamret (2225) – 13Knights_127, GameColony.com, 2003.

4.a3 Bf5 5.e3 h6 6.Bd3 Bd3 7.cd3 Nf6 8.Qa4 b5 (8...Qd7 9.0–0=) 9.Qc2+= Qd7 10.0–0 e6 11.Rc1 Nd8 12.Qc7 Be7 (12...Qc7!? 13.Rc7 Bd6+/–) 13.Qg3 0–0 14.Rc7 Qd6?? (14...Qe8 15.Bf6 Bf6 16.Nc3+/–) 15.Qd6 (better is 15.Be5 Ne8 16.Nc3+– (16.Bd6?! Bd6 17.Qh4 Nc7+–)) 15...Bd6+/– 16.Rc1 Be7 17.Nc3 Rc8 18.Rc2 Nb7 19.Rac1 Nd6 20.Ne5 Rfd8 21.f3 Kh7 22.Ne2 Rc2 23.Rc2 g5 (23...Nfe8 24.e4+/–) 24.Nc6 (24.Rc7!? Ng8+–) 24...Rc8+/– 25.Ned4 (25.Ne7?! Rc2 26.Bf6 Rd2=) 25...Rc7? (better is 25...Ng8+/–) 26.Ne7+– Rc2 (26...Re7 27.Nc6 Ng8 28.Ne7 Ne7 29.Rc7+–) 27.Nc2 Nd7 28.e4 de4 29.de4 Nc4 30.Bc3 e5 31.Ne3 (31.d3!? Ncb6+–) 31...Na3 32.d3 Nb1 33.Bb2 Nd2 34.N3f5 Nb3 (white timed out 0–1). jojobishop (2020) – grahamtrue (2160), net–chess.com, 2012.

4.a3 f6 5.d4 e6 =.

4.a3 f6 5.e3 e5 6.b5 ab5 7.Bb5 Bd7 8.0–0 Nge7 9.a4 d4 (better is 9...Na5!?=) 10.ed4+/– ed4 (10...e4 11.Ne1+/–) 11.Re1+– Ne5? (11...b6 12.Nd4 Nd4 13.Bd4+–) 12.Nd4 (better is 12.Ne5!? fe5 13.Qh5 g6 14.Qe5 Rg8+–) 12...Bb5 13.ab5 Ra1 14.Ba1 c6 (14...Qd6 15.f4 N5g6 16.f5+–) 15.bc6 bc6 16.f4 Nc4 (16...Qa8 17.Bc3 N5g6 18.Qh5+–) 17.Nc6 (17.Qh5 Kd7 18.Qg4 Ke8+–) 17...Qb6 18.Bd4?? (better is 18.Nd4+–) 18...Qc6+= 19.Nc3 Qd6 20.Qa1?? (20.Nb5 Qd7 21.Qh5 Kd8 22.d3+=) 20...Qd4–+ 21.Kh1 Qf4 (21...Nd2 22.Re2–+) 22.Qa8 (22.Re4 Qd2 23.Rc4 Qc2 24.Ne4–+) 22...Kf7 23.Qd5 (23.Qd5 Nd5 24.Nd5 Qd2 25.Ra1–+) 0–1. guest1404 – captain, ICS blitz, 2000.

4.a3 f6 5.g3 e5 6.Bg2 g5 7.d3 Bd6 (7...Be6 8.0–0=) 8.Nbd2 Be6 9.0–0 f5 10.Ne1 (10.c4 dc4 11.Nc4 Qf6+=) 10...Nf6 11.c4 f4 12.Nc2 e4? (12...Rg8 13.e3=) 13.de4 (better is 13.cd5 Bd5 14.Ne4 Be4 15.Be4+– (15.de4?! Be5 16.Be5 Ne5+/–)) 13...de4?? (better is 13...dc4 14.e5 Ne5 15.Bb7 Ra7+/–) 14.Ne4+– (14.Be4?! Ne4 15.Bh8 Nd2 16.Qd2 Be5 17.Qd8 Rd8 (17...Kd8? 18.Be5 Ne5 19.c5+–) 18.Be5 Ne5+–) 14...Ne4 15.Bh8 (15.Be4?! Rf8 16.c5 Be7+–) 15...Nf6 16.e3 (better is 16.gf4 gf4 17.Nd4 Nd4 18.Qd4+–) 16...Kd7 (16...Be5 17.ef4 Ba1 18.Qa1 Kf7 19.Bf6 Qf6 20.Qf6 Kf6 21.fg5 Kg5 22.f4 Kf6+–) 17.Bf6 Qf6 18.c5 Rd8 19.cd6 cd6 20.ef4 gf4 21.Bc6 Kc6 (21...bc6 22.Nd4 Bd5 23.Qd3+–) 22.Rc1 (22.Nd4 Kd7 23.Ne6 Qe6+–) 22...fg3 (22...Kb6+–) 23.fg3 Qg5 (23...Qh6 24.Nd4 Kb6 25.Qe2+–) 24.Ne3 (better is 24.Qf3 Bd5 25.Ne3 Kb6 26.Nd5 Ka7+–) 24...Kd7 25.Qf3 Rb8 26.h4 Qe5 27.Qf4 Qg7 (27...Qf4 28.gf4 Rg8 29.Kf2+–) 28.Kh2 (28.Rcd1 Qe7 29.Nf5 Bf5 30.Qf5 Qe6 31.Qh7 Kc6 32.Qc2 Kd7+–) 28...Qb2 (28...Rd8 29.Nc4 Ke7 30.Nb6+–) 29.Ng2 (better is 29.Rc2 Qe5 30.Qe5 de5 31.Rd1 Ke8 32.Rc7+–) 29...Qa3 (29...Qg7 30.Qe4 Qg6 31.Qg6 hg6 32.Rf6+–) 30.Qd4 (better is 30.Rfd1 Ke8 31.Qd6 Qa1 32.Qe6 Kf8 33.Rd7 Qf6 34.Qf6 Ke8 35.Qe7) 30...Rg8 31.Rc3 Qb2 (31...Qa4 32.Rfc1 Ke8 33.Re3+–) 32.Rc7! Kc7 33.Qb2 b5 (33...Kd7 34.Qc2 Rg7 35.Nf4+–) 34.Nf4 (34.Qc2 Bc4 35.Qh7 Kc6 36.Qe4 Kb6+–) 34...Bc4 35.Qc3 Kb6 36.Qe3 Kb7 37.Rd1 Kc6 38.Qe4 Kb6 39.Rd6 Ka7 (39...Kc7 40.Qc6 Kb8 41.Rd7 Bd5 42.Qc7 Ka8 43.Qa7) 40.Rd7 Kb6 41.Qb7 1–0. coloplayah (2060) – stefandima (1900), net–chess.com, 2007.

4.a3 h6 5.e3 e5 (5...Nf6 6.Be2=) 6.c4 (6.Ne5!? Ne5 7.Be5+/–) 6...e4= 7.Nd4 (7.cd5 Qd5 8.Nd4=) 7...dc4 (7...a5 8.Nc6 bc6 9.ba5=) 8.Bc4 (8.Nc6!? bc6 9.Bc4+/–) 8...Nd4 (8...Ne5 9.Bf1=+) 9.Bd4 Be6 (9...Qg5 10.Rg1=+) 10.Qb3 (10.Be6!? fe6 11.Qc2+/–) 10...Bc4+= 11.Qc4 Bd6?? (better is 11...Ne7+=) 12.Bg7+– b5 (12...f5 13.Bh8 Qg5 14.Qe6 Ne7 15.0–0+–) 13.Qe4 (better is 13.Qc6 Ke7 14.Qe4 Kd7 15.Bh8+–) 13...Qe7 (13...Ne7 14.Bh8 a5+–) 14.Qa8 Kd7 15.Bh8 Nf6 16.Qf3 Ne4 17.d3 Ng5 18.Qf6 Bb4 19.ab4 Qb4 20.Ke2 Qg4 21.Kd2 Qb4 22.Qc3 Qc3 23.Nc3 Ne6 24.Ra6 b4 25.Nd5 Nc5 26.Rh6 Nb3 27.Kc2 Nc5 28.Rb1 b3 29.Rb3 Nb3 30.Kb3 c6 31.Nf4 c5 32.Kc4 f5 33.Kc5 Ke7 34.Kd5 Kf7 35.Ba1 Kg8 36.Ke6 Kf8 37.Rh7 Ke8 38.Rh8# 1–0. M8IN3 – GOODFELLA, Live Game Caissa's Web, 2005.

4.c3 e5 5.d3 Nf6 6.e3 Bg4 7.h3 Bf3 8.Qf3 e4 9.Qd1 ed3 10.Bd3 Ne4 11.Nd2 Ne5 (better is 11...Qe7=) 12.Ne4+/– (< 12.Be4 de4 13.0–0 f5–/+) 12...Nd3 13.Qd3 de4 14.Qe4 Be7 15.Qb7 0–0 16.0–0 Bd6 17.Rfd1 Qb8 (17...Qf6!?+–) 18.Qb8 Rab8 19.Rd2 Rfd8 20.Rad1 Rd7 21.c4 Rbd8 (21...Rdd8+–) 22.Bc3 Kf8 23.c5 (23...f6 24.a4+–) 1–0. miehnekort – vendittomike, Yahoo, 2005.

4.c3 Bg4 5.d4 (5.a4 Nf6+=) 5...Bf3 (5...e6 6.e3+=) 6.ef3= Nf6 7.Bd3 e6 8.0–0 Be7 (8...Bd6 9.a4=) 9.Nd2 (9.Re1 Bd6=) 9...0–0 10.Qc2 (10.Re1 Bd6=) 10...h6 (10...e5 11.de5 Ne5 12.Bf5=) 11.Rfe1 Kh8 (11...Bd6 12.a3=) 12.Nf1 (12.a4 Bd6=) 12...b5 (12...Bd6 13.Ne3=) 13.Ng3 (13.a4 Qd7+=) 13...Qd6 (13...Bd6 14.a4+=) 14.a4 ba4 (14...Na7 15.Ra2+=) 15.Ra4+/– a5 (15...Ra7 16.Ba3 Qd7 17.Ba6+/–) 16.Rea1 e5 (16...Rfe8 17.Qd2+/–) 17.ba5 (17.b5 Nb8 18.Nf5 Qe6 19.de5 Nfd7+–) 17...ed4 (17...Rfe8 18.Bb5 Nd7 19.Nf5+–) 18.Nf5 Qd7 19.Ne7 Qe7? (better is 19...Ne7 20.cd4 Rfe8+–) 20.Ba3 (20.Ba3 Qe8 21.Bf8 Qf8 22.cd4+–; 20.cd4?! Nb4 21.Qd2 Rfb8+–) 1–0. Wall,Bill – Ajaxster, internet, 2003.

4.a3 e6

5.d3 d4 6.c3 e5 7.e4 =+.

5.d3 Nge7 6.e3 Ng6 7.Nbd2 e5 8.Nb3 (8.Be2 a5 9.b5 Na7+=) 8...Be7 9.Be2 Bf6 (9...a5 10.b5 a4 11.Nbd2+/–) 10.c3 (10.0–0 0–0=) 10...0–0 11.0–0 Re8 (11...e4 12.de4 de4 13.Nfd4=) 12.Ne1 (12.Nc5 b6 13.Qa4 Qd6–/+ (13...bc5 14.Qc6 Be6 15.Qc5+/–)) 12...Bf5 (12...Qd6 13.Nf3=) 13.Qc2 (13.Nc5 b6 14.e4 Bc8 15.ed5 Nb4 16.ab4 bc5=+) 13...e4 (13...b6 14.Nf3=+) 14.d4 Qc8 15.Kh1 (15.c4 dc4 16.Bc4 Be6=) 15...Nh4 (15...Nce7 16.c4=) 16.Rg1 Nf3?? (16...Ne7 17.c4=) 17.Nf3?? (better is 17.gf3 ef3 18.Bd3 Bd3 19.Nd3+–) 17...ef3= 18.Bf3?? (better is 18.Bd3 fg2 19.Rg2 Bd3 20.Qd3=) 18...Bc2–+ 19.Nd2 Be4 20.Be2 Ne7 21.Raf1 c6 22.c4 Ng6 23.Bc1 Bd8 24.c5 Bc7 25.Ne4 de4 26.g3 Qh3 27.Rg2 Re6 28.f3 f5 29.Bc4 Rae8 30.Be6 Re6 31.f4 Qg4 32.Rfg1 Nf8 33.Bd2 Rh6 34.Rf2 Nd7 35.Re1 Nf6 36.Rg1 Rh3 37.Be1 Qh5 38.Rgg2 Ng4 39.Re2 Bd8 40.Kg1 g5 41.Bd2 gf4 42.ef4 b6 43.Be1 bc5 44.bc5 Qf7 45.Bd2 Qc4 46.Kf1 Nh2 47.Kg1 Qd4 48.Be3 Qd1 0–1. Siebel,Willi – Schwehla,Franz, Bahn–chN Bad Laasphe, 1994.

5.e3 Nf6 6.c4 b6 7.d4 Rb8 8.Nbd2 dc4 9.Bc4 b5 10.Bd3 g6 11.Rc1 Bb7 12.Qc2 Bg7 13.Ne4 0–0 14.Nc5 Bc8 (better is 14...Ne7!?+/–) 15.Na6!+– Ba6 16.Qc6 Bb7 17.Qc7 Bf3 18.Qd8 Rfd8 19.gf3 Nd5 20.Ke2 Bf8 21.Rhd1 Bd6 22.h3 f6 23.f4 Kf7 24.Kf3 f5 25.Rc2 Rd7 26.Rdc1 Rc7 27.Rc7 Bc7?! (27...Nc7 28.Ke2 Nd5+–) 28.Rc5 h6 29.Rb5 g5 30.Rb8 Bb8 31.fg5 hg5 32.Bc4 Nb6 33.Bb3 Bd6 34.Bc3 (34.e4 fe4 35.Ke4 Bf4+–) 34...Ke7 35.e4 Nd7 (35...fe4 36.Ke4 Bf4 37.a4+–) 36.ef5 (36.e5 Bc7+–) 36...ef5 37.a4 Nb8 (37...Nf6 38.a5+–) 38.b5 Kd7 39.Ba5 Ke7 (39...Ba3 40.Bd2 Be7 41.a5+–) 40.Bb6 (better is 40.Bc2 Ke6+–) 40...Nd7 41.Ba5 Nb8 42.Bc4 (42.Bc2 Ke6+–) 42...Kd7 (42...Nd7 43.Bd3 Ke6 44.Bd8+–) 43.Bd2 Be7 44.Ke3 Bd8 45.a5 Bf6 (45...Kd6+–) 46.a6 Ke8 (46...Na6 47.ba6 Kc8+–) 47.a7 1–0. Fournier,Frederic – Fontaine,Gilbert, Coupe Federation, 1997.

5.e3 Nf6 6.c4 dc4 7.Bc4 Be7 8.0–0 0–0 9.Nc3 e5 10.d4 ed4 11.Nd4 Ne5 12.Be2 Bd6 13.Nf3 h6 14.Ne5 Be5 15.Qd8 Rd8 16.Rfd1 Be6 17.Rd8 Rd8 18.Bf3? (18.Rd1 Rd1 19.Nd1 Nd7=) 18...b5?? (18...Rd2 19.Rb1 Bf5–/+) 19.Rd1= Rd1 20.Nd1 Bb2 21.Nb2 Bd5 (21...Bc8 22.Nd3+=) 22.Bd5+/– Nd5 23.Nd3 c6 24.Nc5 Nc7 25.Kf1 Kf8 26.Ke2 Ke7 27.Kd3 Kd6 28.Kd4 Ne6 29.Ne6 fe6 30.f4 g5 (30...a5 31.g4+/– (worse is 31.ba5 c5 32.Ke4 Kc7+=)) 31.fg5 (better is 31.g4!? e5 32.fe5 Kd7 33.Kc5+–) 31...hg5+/– 32.h3 e5 33.Ke4 c5 34.bc5 Kc5 35.Ke5?? (35.g3 a5 36.Kd3+= (36.Ke5?? b4 37.ab4 ab4–+)) 35...a5–+ 36.Kf5 (36.h4 gh4 37.Ke4 Kc4–+) 36...b4 37.ab4 ab4 38.e4 b3 39.e5 b2 40.e6 b1Q 41.Kf6 (41.Kg5 Qf1 42.g4 Qh3–+) 41...Qb6 (41...Qf1 42.Kg6 Kd6 43.e7 Ke7 44.Kg5 Qg2 45.Kf4 Qh3 46.Ke4–+) 42.Kf7 (42.Kg5 Qe6 43.Kh4 Qh6 44.Kg4 Kd4–+) 42...Kd6 43.e7 Qc7 (43...Qc7 44.Kg6 Qc2 45.Kg5 Qg2 46.Kf4 Ke7–+) 0–1. Fournier,Frederic – Frank0nat0r, Partie amicale, 2008.

5.e3 Nf6 6.c4 Be7 7.Nc3 0–0 8.d4 Ne4 9.cd5 Nc3 10.Bc3 ed5 11.Bd3 Bg4 12.0–0 b5 13.h3 Bh5 14.Be2 Qd7 15.Rc1 Rae8 16.Qc2 Bg6 17.Bd3 f5 (better is 17...Bd3 18.Qd3 Bd6=) 18.Bb2+/– f4?? (better is 18...Rf6 19.Ne5 Ne5 20.de5 Re6 21.Qc7 Rd8+–) 19.Qc6 (better is 19.Bg6 hg6 20.Qc6 Qc6 21.Rc6 fe3 22.Rc7+–) 19...Qc6+= 20.Rc6 Bd3 21.Rd1 (better is 21.Re1!?+=) 21...Be2+= 22.Rdc1 (22.Re1!? Bf3 23.gf3 fe3 24.Re3+=) 22...Bf3–/+ 23.gf3 Bd6 (23...fe3!? 24.fe3 Rf3 25.Re6–+) 24.e4–/+ de4 25.fe4 Re4 26.Ra6 Re2 27.Kf1?? (27.Bc3 f3 28.Rd1 Rfe8–/+) 27...f3 (better is 27...Rb2 28.Re1 f3–+) 28.Bc3 h6 29.Re1 Rfe8 (29...Rc2 30.Re3–/+) 30.a4 (30.Ra5!?=) 30...ba4 31.Ra4 Bh2 (31...Re1!? 32.Be1 Re4–/+) 32.Raa1 (32.Re2 Re2 33.Ra8 Kf7=) 32...g5+= 33.Re2 fe2 34.Ke1 Bg1 (34...Re4 35.b5=) 35.Ra2 h5? (35...Rf8!? 36.Ra6 Kh7+=) 36.Re2 (36.Ra5!? Kf7 37.Rg5 Bh2+–) 36...Re2 37.Ke2 g4 38.hg4 hg4 39.Kf1 Bh2 40.Kg2 Bd6 41.b5 Kf7 42.f3 g3? (better is 42...gf3 43.Kf3 Ke6+–) 43.Be1 Ke6 44.Bg3 Bg3 (44...Bb4 45.Bc7 Bc3+–) 45.Kg3 Kd5 46.f4 Kd4 47.f5 Kd5 48.Kg4 Kd6 49.Kg5 Ke7 50.Kg6 Kf8 (50...Kd6 51.f6+–) 51.Kf6 (51.Kf6 Kg8 52.Ke7+–) 1–0. Fournier,Frederic (1735) – ale36, Active, 2006.

5.Ne5 Qf6 6.d4 Nge7 =.

4.a3 Nf6

5.e3 e6 6.Be2 =.

5.e3 Bf5 6.c4 e6 7.Nc3 +=.

5.e3 Bf5 6.c4 g6 7.cd5 Qd5 8.Nc3 Qd7 9.Bc4 (9.b5 ab5 10.Bb5 Bd3=) 9...Bg7 (9...Bd3 10.Bd3 Qd3=) 10.Ng5 (10.Nd5 0–0–0=) 10...e6 (10...Ne5!? 11.Qb3 0–0+=) 11.d4= b5 (11...h6 12.Nf3=) 12.Bb3 (12.Bd3 Bd3 13.Qd3 Rd8=) 12...0–0 13.0–0 h6 (13...a5 14.Qf3=) 14.Nf3 Bg4 (14...Nd5 15.Rc1=) 15.Rc1 Ne7 (15...Rad8 16.Qe2+=) 16.h3+= White gets the initiative 16...Bf3 17.Qf3 Nf5 (17...a5 18.Qf4+=) 18.Ne2 (18.a4 Qd6 19.ab5 Qb4+=) 18...Rac8 (18...a5 19.ba5 Ne7 20.Bc3+/–) 19.e4 Ne7 20.d5! ed5 (20...Qd5 21.Bd5) 21.Bf6+– Bf6 (21...de4 22.Qf4 g5 23.Qe5 Bf6 24.Qf6+–) 22.Qf6 de4 (22...Qe6 23.Qe6 fe6+–) 23.Rfd1 Qe8 24.Rd4 Nf5 (24...c5 25.Re4 Rc7 26.Rc5 Rc6 27.Qe7 Qe7 28.Re7 Rd6+–) 25.Qg6 (25.Qg6 Kh8 26.Qf5+–) 1–0. Wall,Bill – Grob B, internet, 2003.

5.e3 Bf5 6.Be2 Qd6 =.

5.e3 Bf5 6.Be2 h6 7.0–0 e6 8.c4 (8.b5 ab5 9.Bb5 Bg4+=) 8...dc4 9.Bc4 Bd6 10.Nc3 0–0 11.Re1 Nd7 12.d4 Nb6 13.Bb3 Be7 (13...Re8 14.Na4=) 14.h3 Bf6 15.e4 White intends d5 15...Bg6 16.d5 ed5 17.e5 Be7 18.Nd5 Nd5 19.Bd5 Bf5 (19...a5 20.e6 ab4 21.ef7 Bf7 22.Bc6 bc6 23.Qd8 Bd8 24.ab4 Ra1 25.Ba1+=) 20.e6 (20.Bc6!? bc6 21.Nd4+/–) 20...Be6+= 21.Bc6 bc6. marcosramospg – cyrilrussell (2525), net–chess.com, 2010.

5.e3 g6 6.c4 Bg7 7.cd5 Qd5 8.Nc3 Qf5 9.Be2 (9.b5 ab5 10.Nb5 Ra5=) 9...0–0 10.0–0 Ne4 11.Rc1 (11.d4 Nc3 12.Bc3 Qd5+=) 11...Rd8 (11...Nc3 12.Bc3 e5 13.d4=) 12.Qc2 (better is 12.d4+=) 12...Qe6?? (better is 12...Nc3 13.dc3 Qc2 14.Rc2 Bf5+=) 13.Qe4 (better is 13.Ne4 Bb2 14.Bc4+– (14.Qb2?! Qe4 15.b5 ab5+/–)) 13...Qe4–/+ 14.Ne4 Bb2 15.Rc2 Ba3 16.b5 ab5 17.Bb5 Bd7 18.Ra1 Bd6 19.Rca2 Ra2 20.Ra2 Nb4 21.Ra7? Bb5–+ 22.Nd6 Rd6 23.Rb7 Rb6 24.Rc7 Nd5 25.Rc5 Bc6 26.h3 e6 27.Ne5 Bb7 28.Nc4 Rb1 29.Kh2 Ba6 30.Nd6 Bd3 31.Rc8 Kg7 32.Ra8 Rb6 33.Nc8 Rc6 34.Na7 Rc7 35.f3 Nb6 36.Rb8 Ra7 37.Rb6 Ra2 38.Rd6 Rd2 39.e4 Kf6 40.Kg3 Ke5 41.Rd8 f5 42.ef5 1–0. Fournier,Frederic – cipri4, Active (5/0), 2004.

5.e3 Bg4

6.c4 dc4 7.Bc4 e6 8.h3 =.

6.c4 e6 7.cd5 ed5 8.Be2 Bd6 9.0–0 (9.Nd4 Be2 10.Qe2 Nd4 11.Bd4 Qe7=) 9...0–0 10.Qc2 (10.h3 Bf5=) 10...Re8 (10...Qe7 11.Rc1=) 11.Rc1 Qe7 12.h3 Bf3 (12...Bh5 13.d3=) 13.Bf3 a5 (13...Ne5 14.Be2=) 14.b5 Ne5 15.Be2 Ned7 (15...Qe6 16.d4 Ned7 17.Nd2=) 16.d3 a4 17.Bd4 Rec8 (17...Ra5 18.Qb2=) 18.Ra2 (18.Qb2 Re8=) 18...c5 19.bc6 bc6 (19...Rc6 20.Nc3=) 20.Bf3 (20.Nc3 Ba3 21.Rca1 Bc5 22.Bf6 Qf6+=) 20...Ne5 21.Be5 (21.Be2 c5 22.Ba1 Qe6+=) 21...Qe5 22.Kf1 (22.g3 Qf5 23.Bg2 Qe6=) 22...Qh2 (22...Qe7 23.Nc3+=) 23.Ke2 Qe5 (23...Rc7 24.Nc3+=) 24.Nc3 Attacks the isolani on a4 (24.Kf1 Ra5+=) 24...d4 (24...Qe7 25.Na4 Ba3 26.Rca1=) 25.Ne4 (25.Na4 de3 26.fe3 Re8=) 25...Ne4+= 26.Be4 The pressure on the backward pawn c6 grows 26...Ra5 (26...Qe7 A) 27.Bc6? Ra6–+ (27...Ba3 28.Ba8 Rc2 29.Rcc2+=); B) 27.Rca1+=) 27.Qb2 (27.ed4 Qd4 28.Qb2 Qa7=) 27...de3 (27...Bc5 28.Rc4 Rb5 29.Qa1 Qh5 30.Bf3=) 28.Qe5= Re5 29.fe3 c5 30.Rc4 f5 31.Bb7 Rc7 32.Rb2 Rce7 33.e4 (33.Ra4 Re3 34.Kd2 Re2 35.Kc1 Re1 36.Kc2 R7e2 37.Kb3 Rb2 38.Kb2 Be5 39.Kc2 Re2 40.Kd1 Rb2 41.Bd5 Kf8=) 33...Kf7 34.Ra4 fe4 35.de4 The passed pawn on e4 quickly leads to threats (35.Re4?! c4+=) 35...Rg5 (35...c4 36.Rc4 Ba3 37.Rb3+/–) 36.g4 (36.Kd1 Rd7 37.Bd5 Kf6 38.Rf2 Kg6+–) 36...g6 (36...c4 37.Kd1 c3 38.Rf2 Kg6 39.Ra6+–) 37.Kf3 (37.Ra6 Re6+–) 37...Kg7 (37...h5 38.Ra6 Rd7 39.Rbb6+–) 38.Bd5 Rd7 (38...h5 39.Rb6 hg4 40.hg4+–) 39.h4 (39.Ra8 h5+–) 39...Re5 40.Ra8 Kh6 (40...h6 41.a4+–) 41.Rb6 Bc7 42.Rc6 Bd8 43.Kg3 (43.h5 Red5 44.ed5 Rd5+–) 43...Re8 (43...Rdd5 44.ed5 Rd5 45.a4+–) 44.g5 (44.Rc5?! Rd5 45.ed5 Bh4 46.Kh4 g5 47.Kg3 Ra8+–) 44...Kh5 45.Rc5 h6 46.e5 hg5 47.Bf3 (47.hg5 Bb6 48.Re8 Bc5+–) 47...Kh6 48.hg5 Kg7 49.Rd5 Rd5 50.Bd5 Rh8 51.Ra7 (51.Kg4!? Be7 52.Ra7 Kf8+–) 51...Kf8 52.Rf7 Ke8 53.e6 Threatening mate... how? 53...Be7 54.Rg7 Kf8 55.Rg6 Ba3 56.Kf4 Bb2 (56...Rh7+–) 57.Rf6 Bf6 (57...Ke8 58.Rf7 Ba3 59.Bc6 Kd8 60.Rd7 Kc8 61.Bb7 Kb8+–) 58.gf6 Rh7 59.Ke5 Rd7 60.Bc6 (60.Bc6 Ra7 61.Kd6+–; 60.ed7?!=) 1–0. Ringsborg,Allan (2275) – Wochnik,Manfred (2360), corr ICCF–Cup11 V92, 1997.

6.Be2 Qd6 7.d4 0–0–0 (7...e6 8.0–0=) 8.Nbd2 (better is 8.Ng5 Be2 9.Qe2+=) 8...e5?? (better is 8...h6=) 9.de5+– (9.Ne5?! Be2 10.Qe2 Qe6+=) 9...Ne5 10.Ne5 Be2 11.Nf7?? (better is 11.Qe2 Qe6 12.0–0+–) 11...Bd1 (12.Nd6 Bd6 13.Rd1 Rhf8+/–) 0–1. rampantpawn – Kunk, ChessWorld.net, 2005.

6.Be2 Bf3 7.Bf3 e5 8.d3 Bd6 (8...Qd7 9.Nd2+=) 9.c4 Be7 (better is 9...0–0!?+=) 10.cd5+– Nd5 11.Qb3 (11.Qb3 Nb6 12.Bc6 bc6 13.Be5+/–) 1–0. Trkn – guest5674, ICC, 2004.

6.h3 Bf3 7.Qf3 e5 =.

6.Be2 e6

7.0–0 Bd6

8.c4 dc4+= 9.Bc4 (9.Nc3 b5 (9...Bf3 10.Bf3 0–0 11.Qe2 Be5 12.Bc6 bc6 13.f4 Bc3; 9...Nd7 10.Ne4 Bf3 11.Nd6 cd6 12.Bf3 d5 13.Bg7 Rg8; 9...0–0 10.Bc4 a5 11.b5 Bf3 12.Qf3 Ne5 13.Qe2 Rc8; 9...Nd5 10.g3 Qf6 11.Qc2 Qg6 12.Qg6 hg6 13.Nd5 ed5) 10.d3 cd3 11.Qd3 0–0 12.Rad1 Qd7 13.h3 Bf3) 9...0–0 10.d4 (10.Nc3 a5 11.b5 Bf3 12.Qf3 Ne5 13.Qe2 Rc8) 10...e5 (10...Qe7 11.Nbd2+= (11.Nc3 Bf5 12.Qe2 Ne4 13.d5 ed5) 11...Bf5 12.Qe2 Ne4 13.Ne4 Be4; 10...Ne4 11.Nbd2 Nd2 12.Qd2 Qf6 13.Qe2 Qf5) 11.de5 (11.h3 Bf3 12.Qf3 ed4 13.ed4 Re8) 11...Bf3 (11...Ne5 12.Be5 (12.Nbd2 Bf3 13.gf3 Qe7) 12...Bf3 13.Qd4 Be5 14.Qe5=) 12.Qf3 (12.gf3 Ne5 13.Bb3 a5) 12...Ne5 13.Qe2 (13.Be5 Be5 14.Ra2 c6=) 13...a5 (13...Nfg4=) 14.b5 Nc4 15.Qc4 c5 16.bc6 (16.Rc1 Re8=) 16...bc6 17.h3 Rb8 18.Qc2 Qe7 19.Nd2 Rfc8 20.Rfd1 Rb2 21.Qb2 Be5 22.Qb6 Ba1 23.Ra1 Qd8 24.Qd8 Rd8 25.Nb3 a4 26.Nc5 Ra8 27.Rc1 Kf8 28.Rc4 Ke7 29.Na4 Kd6 30.Kf1 Ra5 31.Ke2 (31.e4 Ke5 32.f3 Ne8+/–) 31...h5 (31...Nd5 32.e4 Ra4 33.e5 Ke5 34.Ra4 Nc3 35.Kd3 Na4 36.Kc4–+) 32.Rd4 Kc7 33.Rc4 (33.e4 c5 34.Rc4 Kc6=) 33...Kd6 34.Kd3 (34.e4!?+/–) 34...c5 35.g4 hg4 36.hg4 g5 37.Kc3 Kd5 38.f3 Nd7 39.Re4 ½–½. Cottarelli,Franco – Wochnik,Manfred, corr 3GMMsemi–01, 2000.

8.d3 0–0= A) 9.Nbd2 Bf5 (9...Re8 10.h3 Bf5 11.c4 h6 12.Qb3 dc4 13.Nc4 e5; 9...h6 10.h3 Bf5 11.c4 Qd7 12.Qb3 Be7 13.Ne5 Ne5; 9...Qd7 10.h3 Bf5 11.c4 Be7 12.Qc2 Bg6 13.Ne5 Ne5; 9...Rc8 10.c4 h6 11.h3 Bf5 12.Qc2 Qd7 13.Bf6 gf6; 9...b6 10.h3 Bf5 11.Nh4 b5 12.Nb3 Re8 13.Nd4 Nd4; 9...Rb8 10.c4 Qd7 11.h3 Bh5 12.Bf6 gf6 13.d4 Kh8) 10.Nh4 a5 11.b5 Ne5 12.f4 Ng6 13.Nf5 ef5; B) 9.Nc3 a5 (9...Qd7 10.h3 Bh5 11.g4 Bg6 12.g5 Ne8 13.Na4 Qe7; 9...h6 10.h3 Bf5 11.Nh4 Bh7 12.Qd2 e5 13.Na4 b6; 9...Qe7 10.h3 Bh5 11.Qd2 h6 12.Rfe1 Rfe8 13.Rab1 Red8; 9...e5 10.h3 Bf5 11.Nd5 Nd5 12.e4 Nf4 13.ef5 Qf6; 9...Bf3 10.Bf3 Qd7 11.d4 a5 12.b5 Ne7 13.Qd3 g6; 9...Re8 10.h3 Bf5 11.Na4 Qe7 12.Nh4 h6 13.Nf5 ef5) 10.b5 Bf3 11.Bf3 Ne7 12.e4 d4 13.Ne2 Be5; C) 9.Qd2 Qe7 (9...Bf3 10.Bf3 a5 11.Nc3 Ne5 12.Nb5 Nf3 13.gf3 ab4; 9...h6 10.Nc3 e5 11.h3 Be6 12.b5 ab5 13.Nb5 Re8; 9...e5 10.h3 Be6 11.Nc3 h6 12.b5 ab5 13.Nb5 Re8; 9...Re8 10.Nc3 Qd7 11.h3 Bf3 12.Bf3 a5 13.b5 Ne5; 9...g6 10.Nc3 Nd7 11.h3 Bf3 12.Bf3 Qh4 13.d4 Nb6; 9...Bf5 10.Nc3 h6 11.h3 Re8 12.Rfe1 b6 13.Nh4 Bh7) 10.Nc3 h6 11.h3 Bf5 12.Rfe1 e5 13.Nd5 Nd5; D) 9.h3 Bf3 (9...Bf5 10.Nbd2 e5 11.c4 e4 12.de4 de4 13.Ng5 Re8; 9...Bh5 10.Nbd2 Qd7 11.c4 Rfe8 12.Qc2 e5 13.cd5 Nd5) 10.Bf3 a5 11.b5 Ne5 12.Nd2 c6 13.bc6 bc6.

8.d3 Qd7 A) 9.h3 Bf3 10.Bf3 Ne5 11.Be5 Be5 12.d4 Bd6 13.c4 c6; B) 9.c4 dc4 (9...Bf3 10.Bf3 dc4 11.dc4 0–0–0 12.c5 Be7 13.Qc1 e5) 10.dc4 0–0–0 11.Nc3 Kb8 12.c5 Be5 13.Qb3 Bc3; C) 9.Nc3 h6 (9...0–0 10.h3 Bh5 11.Qd2 h6 12.Na4 Qe7 13.Qc3 e5; 9...Bh5 10.Na4 0–0 11.Bf6 gf6 12.Nc5 Bc5 13.bc5 Kg7; 9...Bf3 10.Bf3 Ne5 11.Be2 0–0 12.f4 Ng6 13.Qd2 h5; 9...0–0–0 10.b5 ab5 11.Nb5 h5 12.c4 Kb8 13.Qa4 dc4; 9...Bf5 10.Nh4 Bg6 11.Qd2 0–0–0 12.b5 ab5 13.Nb5 Bc5; 9...Rd8 10.h3 Bf3 11.Bf3 Ne5 12.Be2 0–0 13.f4 Ng6) 10.h3 Bf3 11.Bf3 Ne5 12.Be2 0–0 13.Qd2 Ng6; D) 9.Nbd2 0–0 (9...h5 10.c4 0–0 11.Bf6 gf6 12.d4 dc4 13.Nc4 a5; 9...Bf5 10.c4 0–0 11.h3 h6 12.Qb3 Be7 13.Ne5 Ne5; 9...0–0–0 10.h3 Bf3 11.Nf3 e5 12.a4 Bb4 13.Ne5 Ne5; 9...Rd8 10.h3 Bf3 11.Bf3 Ne5 12.Be5 Be5 13.d4 Bd6; 9...Bh5 10.c4 0–0 11.h3 Rfd8 12.Bf6 gf6 13.d4 Kh8; 9...Bf3 10.Nf3 0–0 11.c4 Be7 12.Qc2 h6 13.e4 de4) 10.h3 Bf5 11.c4 Be7 12.Qc2 Bg6 13.Ne5 Ne5.

8.d3 e5 A) 9.Nbd2 0–0 (9...b6 10.Rc1 0–0 11.c4 Bd7 12.cd5 Nd5 13.Qb3 Nf6; 9...Qd7 10.c4 Qe6 11.Ng5 Be2 12.Qe2 Qd7 13.f4 h6) 10.c4 b6 11.cd5 Nd5 12.Rc1 Qd7 13.h3 Be6; B) 9.h3 Bf5 10.Nbd2 0–0 11.c4 e4 12.de4 de4 13.Nd4 Qd7; C) 9.c4 0–0 (9...dc4 10.dc4 0–0 11.Nbd2 b6 12.h3 Bf5 13.b5 Na5; 9...e4 10.de4 de4 11.Nd4 Bd7 12.c5 Be7 13.Nd2 0–0) 10.Nbd2 Re8 11.c5 Bf8 12.Ne5 Be2 13.Nc6 Bd1.

8.d3 Qe7 A) 9.Nbd2 0–0 (9...Bf3 10.Bf3 a5 11.b5 Ne5 12.Be2 0–0 13.d4 Ned7; 9...Qd7 10.h3 Bh5 11.g4 Bg4 12.hg4 Ng4 13.Nd4 h5; 9...b6 10.h3 Bh5 11.c4 0–0 12.Qc2 dc4 13.Qc4 Ne5; 9...0–0–0 10.c4 Qd7 11.b5 ab5 12.cb5 Ne7 13.Qa4 Qe8; 9...Qd8 10.h3 Bf5 11.c4 0–0 12.Nh4 Bg6 13.c5 Be7) 10.h3 Bf3 11.Nf3 h6 12.Qd2 Rfe8 13.Rac1 e5; B) 9.Nc3 0–0 (9...Bh5 10.h3 0–0 11.Qd2 h6 12.Rab1 Rfd8 13.b5 Bf3) 10.h3 Bf3 11.Bf3 a5 12.b5 Ne5 13.Be2 Ned7; C) 9.Qd2 0–0 (9...h6 10.h3 Bh5 11.Nc3 0–0 12.Rfe1 b6 13.d4 Qd7; 9...Bh5 10.h3 0–0 11.Nc3 h6 12.Rfe1 Rfc8 13.Rac1 Bf3; 9...h5 10.Nc3 0–0 11.h3 Bf5 12.Nh4 Bh7 13.Nf3 Rfc8; 9...Bf5 10.Nh4 0–0 11.h3 h6 12.Nf5 ef5 13.Nc3 d4; 9...Bf3 10.Bf3 a5 11.b5 Ne5 12.Be2 0–0 13.Nc3 Ned7) 10.Nc3 Bh5 11.h3 h6 12.Rfe1 Rfc8 13.d4 Qd7; D) 9.h3 Bf3 (9...Bf5 10.Nbd2 0–0 11.c4 Qd7 12.Nh4 Bg6 13.Ng6 hg6; 9...Bh5 10.Nbd2 0–0 11.c4 dc4 12.dc4 b6 13.Qa4 Qe8) 10.Bf3 0–0 11.Nd2 a5 12.b5 Ne5 13.Be2 h6.

8.d3 h6 A) 9.h3 Bf3 (9...Bf5 10.Nbd2 0–0 11.c4 Re8 12.Qb3 dc4 13.Nc4 e5) 10.Bf3 a5 11.b5 Ne5 12.Be2 0–0 13.c4 dc4; B) 9.Nbd2 0–0 (9...Bf5 10.c4 0–0 11.h3 Qd7 12.Qb3 Be7 13.Ne5 Ne5; 9...Bh5 10.c4 0–0 11.h3 Be7 12.b5 Na5 13.Ne5 Be2; 9...Qd7 10.h3 Bf5 11.c4 0–0 12.Qb3 Be7 13.Ne5 Ne5) 10.h3 Bf3 11.Nf3 Qe7 12.Qd2 Rfe8 13.Rfe1 e5.

8.h3 Bf3 9.Bf3 0–0 (9...Qd7 10.Nc3 Ne5 11.Be2 0–0 12.f4 Nc4 13.Bc4 dc4; 9...a5 10.b5 Ne5 11.Be5 Be5 12.d4 Bd6 13.c4 0–0; 9...h6 10.d4 0–0 11.Nc3 Nh7 12.e4 de4 13.Ne4 Ng5) 10.d4 Ne4 11.Nc3 f5 12.g3 Ng5 13.Bg2 Qf6.

8.h3 Bh5 A) 9.c4 dc4 (9...0–0 10.c5 Be7 11.Nc3 Qd7 12.d4 Ne4 13.Qc2 f5; 9...Be7 10.d4 Qd7 11.Nc3 0–0 12.Ne5 Be2 13.Qe2 Ne5) 10.Bc4 0–0 11.Nc3 a5 12.b5 Bf3 13.Qf3 Ne5; B) 9.Nd4 Be2 (9...Nd4 10.Bd4 Be2 11.Qe2 e5 12.Bb2 0–0 13.c4 dc4) 10.Qe2 Nd4 11.Bd4 e5 12.Bb2 0–0 13.Nc3 c6; C) 9.Nc3 0–0 (9...Qe7 10.Re1 0–0 11.Nd4 Nd4 12.ed4 Be2 13.Qe2 c6; 9...h6 10.Nd4 Be2 11.Nce2 Nd4 12.Nd4 a5 13.ba5 Ra5) 10.d3 Qd7 11.Qd2 h6 12.d4 Rfb8 13.Rfc1 b5; D) 9.d4 0–0 (9...Qd7 10.Ne5 Be2 11.Qe2 Qd8 12.Nc6 bc6 13.Nd2 0–0; 9...h6 10.c4 dc4 11.Bc4 0–0 12.Nc3 Qe7 13.Bd3 Rad8; 9...Qe7 10.Nbd2 0–0 11.c4 Qd7 12.Ne5 Be2 13.Qe2 Qe8; 9...Ne4 10.Nc3 0–0 11.Ne4 de4 12.Nd2 Be2 13.Qe2 f5; 9...Bg6 10.Ne5 0–0 11.Nd2 Be5 12.de5 Nd7 13.c4 Nce5) 10.Nbd2 Ne4 11.Ne4 de4 12.Nd2 Be2 13.Qe2 f5; E) 9.Re1 0–0 (9...h6 10.Nd4 Nd4 11.Bd4 Be2 12.Qe2 e5 13.Bb2 0–0; 9...Qe7 10.d3 0–0 11.Nbd2 Qd7 12.e4 de4 13.Ne4 Ne4; 9...Qd7 10.g4 Bg6 11.g5 Nh5 12.Nh2 Qe7 13.h4 h6) 10.Nc3 h6 11.d3 Re8 12.Qd2 Qd7 13.Na4 Qe7; F) 9.d3 0–0 (9...h6 10.Nbd2 0–0 11.c4 Bg6 12.Qb3 Bf5 13.Qc2 Qd7; 9...a5 10.g4 Bg6 11.b5 Nb8 12.Nbd2 Nbd7 13.e4 de4; 9...Qe7 10.Nbd2 0–0 11.c4 dc4 12.dc4 b6 13.Qa4 Qe8; 9...Bg6 10.Nbd2 0–0 11.c4 h5 12.Qc2 Re8 13.Qb3 Bf5; 9...b6 10.Nbd2 0–0 11.c4 Re8 12.Qb3 Qd7 13.Rac1 Ne7) 10.Nbd2 Qd7 11.c4 Be7 12.Ne5 Ne5 13.Be5 Be2.

4.a3 Bg4

5.c4 Bf3 6.ef3 d4 7.b5 ab5 8.cb5 Nb8 9.f4 Nf6 10.Qf3 c6 11.bc6 Nc6 12.Bb5 Rc8 13.0–0 e6 14.Rc1 Nd5 (14...Qd5 15.Qd5 Nd5 16.g3=) 15.Qd3 (15.Bd4 Qh4 16.g3 Qd8+/–) 15...Bd6 (15...Nf4 16.Qe4 Qh4 17.Kh1–/+) 16.g3 0–0 17.Bc6 Rc6 18.Rc6 bc6 19.Qd4 c5?? (better is 19...f6=) 20.Qg7 1–0. Aliethah – 09phypeach, Live Game Caissa's Web, 2004.

5.e3 e6 6.h3 Bh5 7.Be2 Nf6 8.Nd4 Be2 9.Qe2 Nd4 10.Bd4 Be7 11.0–0 0–0 12.f4 b6 13.c4 c5 14.bc5 bc5 15.Be5 d4 16.Rd1 (16.ed4 cd4 17.Qd3 Bc5+=) 16...Qb6 (16...Nd7 17.Qg4 (17.ed4?? Ne5 18.d5 Ng6–+) 17...Bf6 18.Bf6 Nf6 19.Qf3+=) 17.d3 Rfd8 18.e4?? (better is 18.Nd2=) 18...Nd7–+ 19.Qg4 f6 (19...Ne5?! 20.fe5 Qc7 21.Nd2–/+) 20.Bf6 (20.Bc7 Qc7 21.Qe6 Kf8–+) 20...Nf6 21.e5?? (21.Qf3–+) 21...Nd5 (better is 21...Ng4 22.hg4 Rf8–+) 22.cd5= ed5 23.Nd2 Rac8 24.Nf3 c4 25.dc4 dc4+= 26.Kh2 d3–/+ 27.Nh4 Bf8 28.Nf5 Qe6 29.a4 c3 30.Rac1 Qg6 31.Qg6 hg6 32.Ne3 Ba3 33.e6 Bc1 34.Rc1 d2 35.Rd1 Rd6 36.Nc2 Re6 37.g3 Re2 38.Kg1 Rce8 39.Kf1 Rh2 40.Kg1 Rh3 41.Kg2 Rh5 42.Kf3 Ra5 43.Ra1 Ra4 44.Ra4 d1Q (44...d1Q 45.Kf2 Re2 46.Kf3 Re1 47.Kg2 Qe2 48.Kh3 Rh1) 0–1. Fournier,Frederic – Sebl,Jan, Partie evaluee, 5m + 0s, 2007.

5.h3 Bf5 6.e3 e6 7.b5 Nb8 8.ba6 Na6 9.Bb5 c6 10.Ba4 b5 11.Bb3 Bd6?? (better is 11...Nc5+=) 12.Bg7+– Nf6 13.Bh8 Ne4 14.Be5 (14.d3 Nec5+–) 14...f6 (14...Be5 15.Ne5 Qf6 16.d4 Nf2 17.Kf2 Bc2 18.Qf3 Qf3 19.gf3 (worse is 19.Nf3 Bb3 20.Nc3 f6+–) 19...Bb3 20.Nd2+–) 15.Bd6 Qd6 16.d3 Nec5 17.Nh4 Bg6 18.Ng6 hg6 19.0–0 Nb3 20.cb3 Nc5 21.Qc2 Nd7 22.Nd2 Ne5 (22...Qc5 23.Qb1 Qd6 24.d4+–) 23.Rfc1 f5 (23...g5 24.d4 Nf7 25.Qc6 Qc6 26.Rc6+–) 24.a4 (24.f4!? Nf7 25.Qc6 Qc6 26.Rc6 Kd7+–) 24...ba4 25.Ra4 Rb8 (25...Ra4 26.ba4 c5 27.d4+–) 26.Qc5 (better is 26.f4 Nf7+–) 26...Qc5 27.Rc5 Kd7 28.d4 Nd3 (28...Kd6 29.Ra6 Rc8 30.Rc3+–) 29.Rca5 Nc1 (29...Nc1 30.Ra7 Kd6+–). lazarjr (2385) – ramesis (2200), net–chess.com, 2013.

5.e3 e5

6.c4 e4 7.h3 ef3 (Better is 7...Be6!? 8.cd5 Bd5=+) 8.hg4+= fg2 9.Bg2 dc4 10.Nc3 (10.Bc6 bc6 11.Nc3 Qd3+=) 10...Qd3 (Better is 10...Ne5!? 11.Be4 Nd3 12.Bd3 Qd3–/+) 11.Bf1 Qg6 12.Bc4 Nf6 13.Rg1 Ne5= 14.Bb3?? Nd3–/+ 15.Ke2 Nb2 16.Qc1? Nd3 17.f4?? 0–0–0 18.f5 Qg5 19.Bf7 Ne5 20.Be6 Kb8 21.Na4 Neg4 22.Nc5 Bc5 23.Qc5 Qh5 24.Kd1 Ne3 25.Kc1 Ned5 26.Kb2 g6 27.Rac1 Qf3 28.Rgf1 Qe4 29.Bd5 Nd5 30.Qc7 Nc7 31.Rfe1 Qd4 32.Kb3 Qd2 (33.Rc2 Qe1 34.Ka2 gf5 35.a4 Qb4 36.Rh2 Rd3 37.Ka1 Qa4 38.Kb2 Qb3 39.Kc1 Rd1) 0–1. Slooooowly – jakesh, Live Game Caissa's Web, 2004.

6.d3 d4 7.Be2 h6? (better is 7...Be6!?=) 8.Ne5 Be2 (8...Ne5 9.ed4 Qg5 10.Nc3+/–) 9.Qe2+– Ne5 (9...Qd5!? 10.ed4 Qg2 11.Nc6 Ne7+–) 10.ed4 Be7 11.de5 Qd5 12.0–0 f6 (12...Qe6 13.Nc3+–) 13.Qg4 g5 14.Nc3 Qe5 15.Rae1 Qd6 (15...Qf4 16.Qh5 Kf8 17.Nd5+–) 16.Qh5 Kf8 17.Ne2 b6 (17...a5 18.b5 c5 19.bc6 Ra6+–) 18.Nd4 a5 19.Qg6 h5 (19...ab4 20.Nf5 Qd8 21.Re7 Qe7 22.Ne7 Ke7 23.Qe4 Kf7 24.Qa8 ba3 25.Ba3 c5+–) 20.Nf5 Qc6 21.Qg7 Ke8 22.Re7 Ne7 (22...Kd8 23.Qf8 Qe8 24.Qe8) 23.Qe7 1–0. aspasio (2835) – valerypavlovich (2100), net–chess.com, 2013.

6.d3 Bd6 7.h3 Bf5 8.Nbd2 =.

6.d3 Nf6 7.Be2 Bd6 8.0–0 0–0 (8...Qe7 9.Nbd2=) 9.c4 dc4 10.dc4 Re8 (10...e4 11.Nd4 Nd4 12.Bg4 Ng4 13.Qg4=) 11.c5 Bf8 12.Qc2 Rc8 (12...Qd7 13.Nc3=) 13.Nc3+= h6 (13...e4 14.Rfd1 Qe7 15.Nd4 Nd4 16.Rd4 Be2 17.Ne2+=) 14.Rad1 Qe7 15.h3 (15.Ne4 Ne4 16.Qe4 Qe6+=) 15...Bh5 16.Ne4 Ne4 17.Qe4 e5 seems the pivot of the position 17...Bg6 18.Qg4 Qe6 (18...Rcd8 19.Qg3+=) 19.Qg3 (19.Qe6 Re6 20.Nh4 Rce8+/–) 19...Qb3 (19...Be4 20.Rfe1+=) 20.Rd2+/– Qe6 (20...e4 21.Rc1 Bh5 22.Bc4+/–) 21.Rc1 e4 (better is 21...Be4!?+/–) 22.Bc4+– Qe7 23.Nh4 (23.Qg6! ef3 24.gf3 Red8+–) 23...Bh7+/– 24.Rcd1 (24.Ng6! Bg6 25.Qg6+–) 24...Qg5+= 25.Rd7 Qg3? (better is 25...Be7+/–) 26.Bf7+– (26.fg3?! Re7+/–) 26...Kh8 27.fg3 Re7 28.Re7 (28.Ng6 Bg6 29.Bg6 a5 30.Re7 Be7 31.Be4 ab4 32.ab4 Rd8 33.Rd8 Nd8+–) 28...Ne7 29.Be6 (29.Rd7 b6+–) 29...Rb8 (29...Re8 30.Rd7 Nc6 31.Bd5+–) 30.Rd7 c6 (30...b6 31.Bd4+–) 31.Be5 Ra8 (31...Re8 32.Bf7 (32.Rb7?! Ng8+/–) 32...Ra8 33.Rb7+–) 32.Rb7 Ng6 (32...Rd8 33.Ra7+–) 33.Ng6 Bg6 34.Rc7 Be8 (34...a5 35.Rc6 Re8 36.Bd4 ab4 37.ab4+–) 35.Bd6 Bg6 36.Bf8 Rf8 37.Rc6 1–0. Wall,Bill – RudiP, internet, 2001.

6.d3 Nf6 7.Be2 Bd6 8.Nbd2 0–0 9.c4 Re8 10.cd5 Nd5 11.0–0 h6 12.h3 Be6 13.Rc1 f6 14.Ne4 Nce7 15.d4 ed4 16.Nd4 Bf7 17.Bg4 Ng6 18.Nd6 Qd6 19.Nf5 Qd8 20.Qf3 c6 21.Rfd1 Qc7? (better is 21...Qb8!?+/–) 22.Rd5!+– Ne5?? (22...cd5 23.Rc7 Pinning (23.Rc7 Deflection; 23.Rc7 Remove defender); 22...Bd5 23.Qd5) 23.Be5 Re5 24.Rd7! Qb6 (24...Qd7 25.Nh6 Double attack) 25.Nh6! (25.Nh6 gh6 26.Qf6+–) 1–0. rickdragon (2560) – mpenga (2505), net–chess.com, 2013.

6.d3 Nf6 7.h3 Bf3 8.Qf3 Bd6 =.

6.Be2 Bd6 7.h3 Be6 8.0–0 Nf6 9.d3 0–0 10.Nbd2 h6 11.c4 dc4 12.Nc4 Can e5 get defended? 12...e4 13.de4 (worse is 13.Nd6 ef3 (worse is 13...Qd6 14.de4 Ne4 15.Qd6 Nd6 16.Rac1+=) 14.Nb7 fe2 15.Qe2 Qe7+=) 13...Ne4 14.Nd6 Qd6 15.Qd6 Nd6 16.Rfd1 Rfd8 17.Rac1 Ne4 18.Nd4 Nd4 19.Bd4 c6 20.Bb2 Bb3 21.Rd8 Rd8 22.Bf3 Nd2 23.Rc3 (23.Bg4 Be6=) 23...Nf3+= 24.gf3 Rd1 25.Kg2 Be6 26.Rc1 Rd2 27.Bd4 Ra2 (27...g5 28.Bf6+=) 28.Rc3 Kh7 29.Kg3 Kg6 30.e4 Ra1 31.Re3 (31.f4!? f5 32.ef5 Bf5 33.Kh4+=) 31...Rh1 32.h4 Rh3 33.Kg2 Rh4 34.f4 (34.Kg3!? Rh1 35.f4+=) 34...Rf4–/+ 35.Rg3 Rg4 (35...Kh5!? 36.Re3–+) 36.Rg4–/+ Bg4 37.f3 Be6 38.Kg3 f5 39.ef5 Bf5 40.f4 Kh5 (better is 40...a5!?–/+) 41.Bg7+= Kg6 42.Bf8 Be4 43.Kh4 Bf3 44.Kg3 Bd1 45.Kh4 h5 46.Bd6 Kf5 47.Be5 b6 48.Bc7 c5 49.bc5 bc5 50.Be5 c4 51.Kg3 Ke4 52.Bc3 (better is 52.Kh4–+) 52...Kf5 (52...Bg4!? 53.Be5–+) 53.Bd4?? (53.Be5 Be2–+) 53...Ke4 54.Bc3 Kf5 55.Bd4 Kg6 56.Kh4 Kf5?? (better is 56...Bg4–+) 57.Kg3= ½–½. Fournier,Frederic (1880) – ramon1944 (1865), Active, 2005.

6.Be2 Bd6 7.h3 Be6 8.b5 ab5 9.Bb5 +=.

6.Be2 e4 7.Nd4 Be2 8.Qe2 Nd4 9.Bd4 f5 10.0–0 Be7?? (better is 10...Nf6=) 11.Bg7+– Bf6 12.Bh8 (12.Qh5 Kd7 13.Qf5 Kc6 14.Bh8 Bh8+–) 12...Bh8 13.Ra2 (13.Qh5 Kf8 14.Qf5 Qf6 15.Qf6 Bf6+–) 13...Qf6 (13...Qg5 14.d4+–) 14.Nc3 (14.d4 f4 15.Nd2 Qg6 16.ef4 Bd4+–) 14...0–0–0 15.b5 ab5 16.Qb5 Ne7 17.a4 (better is 17.Rb1 Qc6 18.Qb4 Bc3 19.dc3+–) 17...Rd6? (17...d4 18.Ne2 Qe6 19.Rb2+–) 18.a5 (better is 18.Rb1 f4+–) 18...Qh6 (18...Rd8+–) 19.Qe8 Rd8 20.Qe7 Be5 (20...Rd7 21.Qc5 Be5+–) 21.Qe5 Rg8 22.Qf5 Kb8 23.g3 (23.Qd5 Qg6 24.Qe4 Re8 25.Qg6 hg6+–) 23...Rf8 24.Qd5 Rf3 25.a6 (25.Qd8 Ka7 26.Nb5 Ka6 27.Nc7 Ka7 28.Qa8) 25...b6 26.Qb7 1–0. Fournier,Frederic (1805) – nfverna (1685), Active, 2005.

6.Be2 Bf3 7.Bf3 Nf6 8.d3 h6 9.Nd2 Bd6 (9...Be7 10.c4 Qd6 11.Qa4+=) 10.0–0 0–0 (10...a5 11.b5 Na7 12.c4+=) 11.h3 (11.c4 Re8+/–) 11...e4 (11...a5!? 12.b5 Ne7=) 12.de4+/– de4 (12...Be5 13.c3 Ne7 14.ed5 Ned5 15.Qc2+–) 13.Ne4+– Ne4 14.Be4 Re8 15.Bc6 bc6 16.c4 (16.Qg4 Qg5 17.Qg5 hg5+–) 16...Rb8 17.Qd4 Qg5 18.Rad1 (better is 18.f4!? Qg6 19.c5+–) 18...c5+= 19.Qd2 (19.h4 cd4 20.hg5 de3 21.fe3 a5 22.gh6 gh6+=) 19...cb4= 20.ab4 Rbd8 (better is 20...Rb4!? 21.Ba3 Rb6 22.Bd6 Rd6=) 21.Qc3 (21.Bd4 Qe7 22.c5 Be5+/–) 21...Rc8 (21...Rb8!?+=) 22.c5 Be5 23.Qb3 c6?? (23...Bb2!? 24.Qb2 Rb8+/–) 24.Be5 (better is 24.f4 Bf4 25.Rf4+–) 24...Qe5 25.Rd4 Rcd8 26.Rfd1 Rd4 27.Rd4 a5 28.ba5 Ra8 29.Qb6 Qe6?! 30.a6 Qa2 31.Rd8 Rd8 32.Qd8 Kh7 33.Qb6 Qa1 34.Kh2 Qe5 35.g3 Qa1 36.a7 Qa2 37.Kg2 Qd5 38.Kg1 Qa2 39.Qb8 Qa6 40.a8Q Qa8 41.Qa8 f6 42.Qc6 Kg6 43.Qe4 Kf7 44.c6 f5 45.Qf5 Ke7 46.Qd7 Kf6 47.c7 Kg6 48.c8Q Kh7 49.Qde8 h5 50.Qf5 Kh6 51.Qeg6 (51.Qeh5) 1–0. Fournier,Frederic (1720) – ranaplana (1670), Active, 2004.

6.h3 Bf3 7.Qf3 e4 =.

6.h3 Bf3 7.Qf3 Be7 8.c4 d4 9.d3 Bf6 10.Be2 Nge7 11.0–0 Ng6 12.Nd2 Nh4 13.Qg4 h5 14.Qe4 g6 (Better is 14...de3 15.fe3 Bg5+=) 15.b5 ab5 16.cb5 Na5 17.ed4 0–0 18.de5 Bg5 19.f4 Bh6 20.Qb4 b6 21.Ne4 Nf5 22.Nf6 Kh8 23.Bf3 Rc8 24.Nd7 Re8 25.e6 Kh7 26.Nf6 Kh8 27.Ne8 Kh7 28.Nf6 Kh8 29.ef7 Bg7 30.Ne8 Kh7 31.Bg7 Ng7 32.Qc3 Ne6 33.f8Q! Qd4 34.Qd4 Nf8 35.Qg7# 1–0. marre (2120) – GloriousOne, GameColony.com, 2003.

3.Nf3 e6

4.a3 Be7 5.d4?? (better is 5.Bg7 Bf6 6.Bh8 Bh8 7.d4+–) 5...Nc6 (5...Nf6 6.e3=) 6.Nc3 (6.e3 Bd6=) 6...Bf6 (6...Nf6 7.e3=) 7.e3 (7.e4 de4 8.Ne4 Nge7+=) 7...b5 (7...Nh6 8.e4=) 8.h4 (8.Bd3 Nh6+=) 8...e5 (8...Nh6 9.Bd3=) 9.de5 Be6?? (better is 9...Ne5 10.Ne5 Be5=) 10.ef6+– Nf6 11.Nh2 (11.h5 h6+–) 11...h6 (11...0–0 12.Nf3+–) 12.f3 (12.Bd3!? 0–0+–) 12...0–0 (12...Nh5 13.Kf2 Qh4 14.Kg1+–) 13.Qd3 (13.g4 Nh7 14.g5 hg5 15.hg5 Qg5+–) 13...Qd6 (13...Nh5 14.Ng4 Ng3 15.Rh3 Nf1 16.Kf1+– (16.Qf1?! h5+/–)) 14.e4 (better is 14.0–0–0 Rad8 15.g4+–) 14...Qg3+/– 15.Ke2?? (better is 15.Kd1!? Rfd8 16.Ne2 Qh4 17.g3 de4 18.gh4 ed3 19.cd3 Rd3 20.Ke1+/–) 15...Rad8 (better is 15...d4 16.Nb5 ab5 17.Qb5 Bd7+=) 16.Kd2?? (better is 16.f4 Nd4 17.Kd1=) 16...de4–+ 17.Qd8 (17.fe4 Ne5 18.Nf3 Qf4 19.Ke1–+) 17...Rd8 18.Ke3 (18.Bd3 ed3 19.cd3 Qf2 20.Ne2 Rd3 21.Kc1 Qe3 22.Kb1 Bf5 23.Rc1 Rd1 24.Ka2 Be6 25.Kb1 Qd3) 18...Ne5 19.Ne2 (19.Bd3 ed3 20.cd3 Rd3 21.Ke2 Qg2 22.Ke1 Rd2 23.Nb5 Nd3) 19...Nc4 0–1. Gregor123 – mrwolf@, mySchach.de, 2004.

4.e3 Bb4?? 5.Bd3 Nf6 6.0–0 (6...0–0 7.a3–/+; 6.a3 Bd6–/+). djervis (1840) – hirata, net–chess.com, 2006.

4.e3 Bb4?? 5.Bg7 Nf6 6.Bh8 c5 (6...Nbd7 7.c4+–) 7.Bf6 (7.Be2!? Nc6+–) 7...Qf6 8.c3 Ba5 9.Be2 (9.d4 cd4 10.ed4 Nc6+–) 9...b5 10.0–0 b4 (10...e5+–) 11.Qa4 Nd7 12.Qa5 Bb7 (12...e5 13.cb4 e4 14.Nc3 ef3 15.Nd5+–) 13.a3 (13.d4!? Qd8 14.Qa4 Qc7+–) 13...b3 14.Qc7 Rb8 15.Qa5 (15.d4 Qd8 16.Qg3 Qf6+–) 15...b2 (15...d4 16.ed4 cd4 17.Re1+–) 16.Ra2 d4 (16...Bc8 17.d4+–) 17.cd4 (better is 17.Rb2 Qd8 18.Qa4 Bc6 19.Rb8 Nb8+–) 17...Bd5 18.Ba6 (better is 18.dc5 e5 19.c6 Qc6 20.Ne5 Ne5+–) 18...Ba2 19.Bb5 cd4 (19...Qd8 20.Qa6 Qb6 21.Bd7 Kd7 22.Ne5 Ke8 23.Qd3+–) 20.Bd7 Kf8 21.ed4 (21.Nd4 Bb1 22.Rb1 Qg6 23.Qc5 Kg7+–) 21...Bc4 (21...Bd5 22.Bc6 Bc6 23.Qc7+–) 22.Re1 (22.Qc5 Qe7 23.Qc4 Qd7 24.Qc5 Kg8 25.Qg5 Kf8 26.Qh6 Ke8 27.Qh7 Rb7+–) 22...Bd3 (22...Bd5 23.Bc6 Bf3 24.Qc5 Kg8 25.Bf3+–) 23.Qa7 (23.Ne5 Bb1 24.Rb1 Kg7+–) 23...Rb3 (23...Rd8 24.Ne5 Bb1 25.Rb1+–) 24.Qc5 (24.Re3!? Qf4 25.Qa4 Qc7 26.Qb3 Qc1 27.Re1 Bb1+–) 24...Kg7 (24...Qe7 25.Qc7 Bb1 26.Rb1+–) 25.Ne5 Bb1 26.Rb1 Qg5 (26...Qf5 27.d3+–) 27.Qc2 (27.Be6 Rb7 28.Bd5 Qf5+–) 27...Rh3 (27...Ra3 28.Be6! Ra1 29.Qb2 Rb1 30.Qb1 Qd2 31.Nf7 Qd4 32.Ng5+–) 28.Qb2 Rh6 29.Nf3 (29.d5 Rf6+–) 29...Qf6 30.Qb3 (30.Bc6 Rh5+–) 30...Qf4 (30...Rh5 31.Bc6+–) 31.Bc6 (31.Qc3 Qe4 32.d5 Rf6+–) 31...Qf6 32.a4 e5 33.de5 (better is 33.Ne5 Qf4 34.Qg3 Qg3 35.hg3 f6 36.Rb7 Kf8 37.Nd7 Kf7 38.Nc5 Kg6+–) 33...Qc6 34.a5 (better is 34.d4 Qd7+–) 34...Rg6 (34...Qc7 35.Qb5+–) 35.Ra1 (35.Nh4 Qe4 36.Ng6 Qg6+–) 35...Rg4 (35...Qc8 36.d4+–) 36.e6 (36.a6 Qa8+–) 36...Rc4 (36...fe6 37.a6 Qa8 38.Rc1+–) 37.Qb2 f6 38.e7 (better is 38.a6 Qa8 39.Qb7 Qb7 40.ab7 Rb4+–) 38...Rc2 (38...Ra4 39.Nd4 Qe8 40.Nf5 Kg6 41.Ra4 Qa4 42.Qb1+–) 39.Qa3 (39.Nd4 Rc1 40.Rc1 Qe8+–) 39...Qc8 40.a6 Qe8 41.a7 Rc8 42.a8Q Ra8 43.Qa8 Qe7 44.d4 Qb4 45.d5 Qd4 1–0. annmarie – Bezek, Live Game Caissa's Web, 2004.

4.e3 Nc6 5.a3 a5 6.b5+= Na7 7.c4 c6 8.bc6 Nc6 9.cd5 ed5 10.Be2 Nf6 11.0–0 b6 12.Nc3 Be7 13.d4 0–0 14.Bb5 Bd7 15.Qa4 Na7 (15...Rc8!?+=) 16.Bd7+/– Qd7 (16...Nd7!? 17.Nd5 Bd6+/–) 17.Qd7+– Nd7 18.Nd5 Bd6 19.Rfc1 Nc6?? (better is 19...Rae8+–) 20.Rc6 Bb8 21.Nb6 Ba7 (21...Nb6 22.Rb6 Bc7+–) 22.Nd7 (22.Nd7 Rfd8 23.Nde5+–) 1–0. Fournier,Frederic – miwata25, Active, 2007.

4.e3 Nc6 5.a3 Bd6?? 6.c4 (better is 6.Bg7 e5 7.Bh8+–) 6...Nf6+= 7.c5 Be7 8.Be2 0–0 9.0–0 b5 10.d3 Bb7 11.Nbd2 Nd7 12.Nb3 f5? (better is 12...e5+=) 13.Nbd4+– Nd4 (13...Rf6 14.Nc6 Bc6 15.Bf6 Bf6 16.d4+–) 14.Nd4 (14.ed4?! Qe8+=; 14.Bd4?! Bf6+=) 14...Qc8 (14...e5 15.Ne6 Qb8 16.Nf8 Qf8+–) 15.c6 (15.Ne6?! Rf7+–) 15...Nf6 16.cb7 Qb7 17.Ne6 Rfe8 18.Rc1 c6 19.Nd4 Qd7 20.Nc6 Bd6 21.Bf6 gf6 22.Nd4 Rac8 23.Qb3 Be5 24.Nf3 Kh8 25.Ne5 fe5 26.Bf3 d4 27.ed4 ed4 28.Qd5 Qd5 29.Bd5 Rc3 30.Rc3 dc3 31.Rc1 c2 32.Bb3 Re2 33.Kf1 Rd2 34.Bc2 f4 35.Ke1 1–0. Hal1958 – IRONMAIDEN, playchess.de, 2006.

4.e3 Nc6 5.a3 Nf6 6.Be2 =.

4.e3 Nf6 5.a3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 a6 5.Nf3).

3.Nf3 Bg4

4.e3 Nd7 5.Be2 h6 (5...Ngf6 6.a3=) 6.0–0 e6 (6...Ngf6 7.a3+=) 7.a3 Bd6 (7...Ngf6 8.h3 Bf3 9.Bf3=) 8.d3 (8.Bg7!? Rh7 9.Bb2+/–) 8...Ngf6+= 9.h3 (9.c4 0–0=) 9...Bh5 (9...Bf3 10.Bf3 a5 11.b5=) 10.c4 c6 11.Nbd2 Bb8 (11...b6 12.e4 e5 13.ed5 Bf3 14.Bf3 cd5 15.Rc1+=) 12.d4 (12.e4 0–0+=) 12...Qc7 (12...0–0 13.c5=) 13.c5 (13.Rc1 0–0=) 13...Bf3 (13...0–0 14.a4=) 14.Bf3?? (better is 14.Nf3 0–0 15.Bd3+=) 14...Qh2 0–1. alaamattar (2145) – bienopia (2100), net–chess.com, 2006.

4.e3 Nd7 5.h3 Bh5 6.g4 Bg6 7.Bg2 c6 8.a3 Qc7 9.d3 e5 10.Nbd2 Bd6 11.0–0 Ngf6 12.Re1 (12.g5 Nh5=) 12...0–0 13.Nf1 (13.g5 Ne8=) 13...e4 14.Nh4 ed3 (14...Be5 15.Be5 Qe5 16.f4 ef3 17.Nf3+=) 15.cd3= (worse is 15.Ng6 dc2 (15...hg6?! 16.cd3 Rfe8 17.g5=) 16.Qc2 fg6–/+) 15...Rfe8 (15...Be5 16.Be5 Ne5 17.Ng6 Ng6 18.Nd2+=) 16.Ng6 (16.g5 Nh5+/–) 16...hg6= 17.Qd2 Be5 18.Be5 Ne5 19.Rac1 Re7 20.Qc3 Rae8 21.Nd2 Nh7 (better is 21...g5!?=) 22.d4+/– Nd7 23.a4 (23.Bd5!? Qd6 24.Bg2+/–) 23...Ndf6 24.b5 ab5 25.ab5 Re6 26.bc6 bc6 27.Qc5 Ng5 28.Rc2 Nge4 29.Ne4 Ne4 30.Be4 de4+= 31.Rec1 Rc8? 32.Qc3 f5? 33.Qc4 Qd7 34.d5!+– (34.d5 Rd6 35.dc6 Qf7 36.Qf7 Kf7 37.c7+–) 1–0. Fournier,Frederic (1820) – tomarov (1905), Active, 2005.

4.e3 e5 5.h3 Bf3 6.Qf3 =.

4.e3 e6 5.a4 Nf6 6.b5 Be7 7.Be2 0–0 8.Nc3 Ne4 9.Ne4 de4 10.Ng5?? (better is 10.Nd4 Be2 11.Qe2 ab5 12.Qg4=) 10...Be2–+ (10...Bg5?! 11.Bg4 Nd7 12.d4=) 11.Qe2 (11.Nf7 Bd1 (11...ab5?! 12.Nd8 Bd1 13.Ne6 Bc2 14.Nf8 Bf8 15.ab5 Ra1 16.Ba1–+) 12.Nd8 Bd8 (12...Bc2?! 13.Ne6 Rc8 14.Rc1–/+) 13.Rd1 ab5 14.ab5 Rf5–+) 11...Bg5 12.f4 Bf6 13.0–0–0 (13.Bf6 Qf6 (worse is 13...gf6 14.0–0–+) 14.Rb1 ab5 15.Qb5 b6–+) 13...Bb2 14.Kb2 Qf6 15.c3 ab5 16.ab5 c6 17.bc6 (17.Ra1 Nd7–+) 17...Nc6 18.Ra1 Ra1 (18...Nb4! 19.Ra8 Ra8 20.Ra1 Nd3 21.Qd3 Ra1 22.Qe4–+) 19.Ra1 b5! 20.Ra6 (20.Qb5 Rb8 Pinning (20...Rb8 Decoy)) 20...Rc8 (better is 20...Nb4! 21.Rd6 Qe7–+) 21.Qb5 e5 22.Rc6 (22.fe5 Qd8 23.Kc1–+) 22...Rc6 (better is 22...Qc6 23.Qc6 Rc6 24.fe5 Rh6–+) 23.Qb8 1–0. guest431 – guest134, ICS blitz, 2000.

4.Ne5 Bf5 5.e3 =.

4.Ne5 Bh5 5.g4 f6 6.gh5 fe5 7.Rg1 =.

4.Ne5 Bh5 5.g4 Bg6 6.c4 (6.Bg2+=) 6...f6 (better is 6...Be4!? 7.Rg1 dc4 8.Nc4 e6=) 7.Ng6+/– hg6 8.Qc2 Kf7 9.Bg2 c6 10.cd5 (10.h4 e6+/–) 10...cd5 11.e4 e6 (11...e5!?+/–) 12.ed5 ed5 13.Nc3 Ne7 14.Qb3 (14.Nd5 Nd5 15.Qc4 Bb4 16.Bd5 Ke8+/–) 14...Ke6 15.0–0–0 Nbc6 (15...Qc7 16.Rde1 Kd7 17.Kd1+–) 16.Rde1 Kd6 (16...Kd7 17.Nd5 Nd5 18.Qd5 Kc7 19.a3+–) 17.Bd5 (17.Nd5 Nd5 18.Qd5 Kc7+–) 17...Nd5+/– 18.Nd5 Rc8 19.Kb1 Nb4?? (19...a5 20.Qe3 ab4+–) 20.Qb4 Kd5 21.Qd4 Kc6 22.Rc1 1–0. Registration (2435) – RUSH7, ICC, 2003.

3.Nf3 h6

4.e3 Nc6 5.b5 ab5 6.Bb5 Bd7 7.0–0 e6 8.a4 Nf6 9.c4 dc4 10.Qc2 Na5 11.Ne5 Bb5 12.ab5 b6 13.Na3 Bd6 14.Nac4 (14.Nec4?! 0–0+=) 14...0–0 15.Na5 ba5 16.Nc6 Qd7 17.Bf6 gf6 18.Ra4 f5 19.Rfa1 Rfc8 20.d4 Bf8 21.Ra5 Ra5 22.Ra5 (22.Na5?! Qb5 23.Nc6 Bd6+/–) 22...Bd6 23.Ra7 Kg7?? (better is 23...Qe8+–) 24.b6! h5 (24...cb6 25.Rd7 Pinning (25.Rd7 Deflection)) 25.b7 Bh2 (25...Qe8+–) 26.Kh2 Qd6 27.Kg1 Rf8 28.b8Q (better is 28.Ra8 h4+–) 28...Rb8 29.Nb8 c5 30.Qc5 Qd8 31.Qc7 (31.Qc7 Qc7 32.Rc7+–) 1–0. pumpkin – grahamtrue (2215), net–chess.com, 2014.

4.e3 e6 5.c4 dc4 6.Bc4 c6 7.0–0 Nf6 8.a3 Bd6 9.d4 0–0 10.Nbd2 b5 11.Bd3 Bb7 12.Nb3 Ng4? (12...Nbd7!?+/–) 13.h3 (better is 13.e4 Be7 14.Na5+–) 13...c5?? (better is 13...Nf6+–) 14.bc5 Qc7 (14...Nf2 15.Kf2 Bc7+–) 15.cd6 Qd6 16.hg4 Nd7 17.Nc5! Nc5 18.dc5 Qc5 19.Rc1 Bf3 (19...Qe7 20.e4+–) 20.Qf3 Qd6 (20...Qe7 21.Qe4 g6 22.Qe5+–) 21.Rfd1 Qe7 22.Qe4 g6 23.Qe5 f6 24.Qe4 (better is 24.Rc7 fe5 25.Re7 Rfd8 26.Be5 Rd5+–) 24...Rae8 (24...Qf7+–) 25.Qg6 Qg7 26.Qg7 (better is 26.Qe4!? Rf7+–) 26...Kg7 27.Rc7 Rf7 28.Rf7 Kf7 29.Kf1 Rd8 (29...Re7 30.Ke2+–) 30.Bg6! Kg6 31.Rd8 e5 32.Rd6 a5 33.Be5 Kg5 34.Bf6 Kg4 35.Rd5 h5 (35...b4 36.f3 Kg3 37.Rh5 ba3 38.Be5) 36.f3 1–0. Bossieman – calchess10, ChessWorld.net, 2014. (=1.Nf3 d5 2.b4 a6 3.Bb2 h6)

4.g3 Nc6 5.a3 Bg4 6.Bg2 e6 7.0–0 Nf6 8.Nc3 b5 9.d3 Be7 10.e4 d4 11.Ne2 e5 12.c3 0–0 (better is 12...dc3!? 13.Bc3 Qd6=) 13.cd4+/– Bf3 14.Bf3 ed4 15.Rc1 Ne5 16.Bg2 Rc8 17.Bd4 Ng6 18.Bb2 c5 19.Qd2 cb4 20.ab4 Re8 21.Rc8 Qc8 22.Rc1 Qg4 23.f3 Qe6 24.d4 Rd8 25.d5 Qd7 26.Nf4 Ne5?? (better is 26...Nf4 27.Qf4 Qa7 28.Kh1 Qf2+/–) 27.Be5+– Ne8 28.Bh3 Qa7 29.Bd4 Bd6 (29...Qb7+–) 30.Ba7 1–0. Jokmin,Alex – Venturas,Bob, RN–2010–0–00276, 2010.

3.g3 Nc6

4.a3 e5 5.Bg2 Be6 6.d3 f5 (6...Bd6 7.Nf3+=) 7.Nd2 Nf6 8.e3 (8.c4 Qd6=) 8...Qd7 9.Ne2 g5 ½–½. To Ngoc Minh – Leu Tuan Linh, Hanoi nat op, 2002.

4.a3 e5 5.Bg2 Nf6 6.c4 Be7 7.Qc2 0–0 8.d3 Be6 9.Nd2 Qd7 (9...a5!? 10.b5 Nd4+=) 10.Ngf3= d4 11.b5 ab5 12.cb5 Na7 13.Ne5 Qb5 14.Nec4?? (better is 14.Bd4!? Bd5 15.e4+/–) 14...c5 (14...Bd5 15.Bf3 Nc6 16.0–0+=) 15.a4 Qd7?? (better is 15...Qa6+=) 16.Nb6+/– Qc7 (16...Qd6!? 17.Na8 Nc6+/–) 17.Na8+– Ra8 18.0–0 (18.Bd4 Nc6 19.Bb2 Nb4+–) 18...Bd5 19.Bd5 Nd5 20.Rfc1 Nc6 21.Nb3 Ncb4 (21...Ndb4 22.Qc4 Qe5 23.e3+/– (worse is 23.Nc5 Bc5 24.Qc5 Qe2+=)) 22.Qd2 (better is 22.Qc4 Rc8 23.Nd4+–) 22...h6? (better is 22...Qb6+/–) 23.Nd4! Bg5 (23...cd4 24.Rc4 Double attack (24.Rc7 Pinning; 24.Rc7 Deflection; 24.Rc4 Decoy)) 24.f4 Bf6 25.e4 Qb6 26.ed5 Bd4?? (26...cd4 27.a5! Qb5+–) 27.Bd4 cd4 28.Rcb1 Qa5 29.Qb4 Qd5 30.Qb7 (30.Qb7 Qd8 31.Rb5+–) 1–0. Jablonicky,Martin (1930) – Majsniar,Jan, Banska Stiavnica SVK, V4 Open, 2013.

4.Bg2 Nb4 5.c3 Nc6 6.Nf3 Bg4 7.0–0 e5 8.d3 Nf6 9.Nbd2 Bd6 10.h3 Bf3 11.Nf3 0–0 12.Bc1 Ne7 13.Rb1 b5 14.Bg5 e4 15.Bf6 ef3 16.Bf3? (better is 16.Be7 fe2 17.Bd8 ed1Q 18.Rfd1 Rad8 19.Bd5 Bg3 20.Bb7=) 16...gf6–+ 17.e3 c6 18.c4 Qc7 19.cd5 cd5 20.Rc1 Qb6 21.d4 Rac8 (21...Ba3 22.Rc3 b4 23.Rc5–+) 22.Qb3 (22.Rc8!? Rc8 23.Bd5–/+) 22...Qb7 23.Rc8 Rc8 (23...Nc8?! 24.Qd5 Qd5 25.Bd5–/+) 24.Kg2 Qc6 25.Qd1 Qc2 26.Qa1 Nf5 27.Bd5?? (27.Kg1 Rd8–+) 27...Ng3 (better is 27...Ne3 28.Kg1 Nd5 29.Qb1–+) 28.Rb1 (28.Rg1 Ne4 29.Be4 Qe4 30.Kf1 Kf8–+) 28...Nf5 29.Re1 Bg3 30.Kf3 (30.Rf1 Qe2 31.Bb7–+) 30...Qf2 31.Kg4 Ne3 32.Re3 Qf4 (32...Qf4 33.Kh5 Qg5) 0–1. Salvatore – Mr.Oldenslo, ChessWorld.net, 2012.

3.g3 Nf6

4.Bf6 ef6 5.a3 Be7 6.Bg2 Nc6 7.Nf3 b5 8.d3 Be6 9.Nbd2 f5 10.0–0 0–0 11.Rc1 Qd6 12.c4 f4 13.c5 Qd7 14.Re1 (Better is 14.gf4!? a5 15.Ne5 Ne5 16.fe5 ab4 17.ab4=) 14...fg3–/+ 15.fg3 Bh3 (15...a5!?–/+) 16.e3 Bg2 17.Kg2 Rad8 18.Nb3 Rfe8 19.Nbd4 Nd4 20.Nd4 Bf6 21.Nf3 c6 22.d4 Qg4 23.Qd3 h5 24.h3 Qe4 25.Qe4 Re4 26.Nd2 Re6 27.Re2? Rde8 28.Rce1 Bd4! 29.e4 Bc3 30.Kf3? Bd2 31.Rd2 Re4 32.Re4 Re4 33.g4 hg4 34.hg4 f6 35.Rh2 Kf7 36.Rh8 Rc4 37.Ke3 Rc3 38.Kd4 Ra3 39.Rc8–/+ Ra4 40.Rc6 Rb4 41.Kc3?? Rg4 42.Ra6 Rc4 0–1. audrey – ivko, Live Game Caissa's Web, 2004.

4.Bg2 e6 5.a3 b5 6.Nf3 Bd6 7.d3 Nc6 8.Nbd2 h6 9.0–0 0–0 10.Nd4 Bb7 11.c4 bc4 12.dc4 Nd4 13.Bd4 Rb8 14.c5 Be7 15.Qc2 c6 16.Rad1 a5 17.e4 Ba6 18.Rfe1 ab4 19.ab4 Rb4 20.Ra1 Rd4–/+ 21.Ra6 Qc7 22.e5? Nd7–+ 23.Rea1 Bc5 24.Ra8 Qe5 25.Nf3 Qe4 26.Rf8–/+ Kf8 27.Nd4 Qd4 28.Rd1 Qg4 29.h3 Qg5 30.Kh2 Qf6 31.f4 Qe7 32.Ra1 g6 33.h4 f5 34.Qb2 Nf6 35.Bf3 g5?? 36.fg5 hg5 37.hg5 Ng4? 38.Bg4+– fg4?? 39.Qb8 Kf7 40.Rf1 Kg7= 41.Qe5 Kg8 42.g6 d4?? 43.Rf7+– Qf7 44.gf7 Kf7 45.Qc5 e5 46.Qe5 (46...d3 47.Qc7 Ke6 48.Qc6 Ke5 49.Qc4+–) 1–0. coloplayah (1980) – pegan (1830), net–chess.com, 2005.

2...Na6

3.a3 b5 4.Nf3 Bg4 (4...c6 5.e3+=) 5.Nc3 (5.Ne5 Bd7+/–) 5...c6+= 6.Ne5 f5 (6...Bd7 7.e4 e6+=) 7.f3 Bh5 8.Nc6 Qd6 (8...Qb6 9.e3 Nc7 10.Nd4+–) 9.e3 Qc6?? (9...Nc7 10.Nd4 a6 11.Nf5 Qg6+–) 10.Bb5 Nb8 (10...Qb5 11.Nb5 Kf7 12.c4+–) 11.Bc6 Nc6 12.Nd5 Rc8 13.Qe2 Nf6 (13...Bf7 14.Qa6 Be6 15.Nc3+–) 14.Qa6 Rc7 (14...Kd8 15.Nf4 Bf7 16.Qd3 Ke8 17.Qf5 Rc7+–) 15.Nc7 (15.Nc7 Kd7 16.Na8+–) 1–0. pierre – tytuos, internet, 2010.

3.a3 e6 4.e3 c5 (4...Nb8 5.Nf3=) 5.Bb5 (5.Ba6 ba6 6.bc5 Nf6+=) 5...Bd7 6.Ba6 ba6 7.bc5 Bc5?? (better is 7...Rc8+=) 8.Bg7+– 1–0. Wall,Bill – DaMan, internet, 2001.

3.a3 f6 4.e3 e5 5.c4 d4 (5...c5 6.cd5 Qd5 7.Nc3=) 6.ed4+= ed4 7.Qh5 g6 8.Qd5 (8.Qe2 Kf7 9.c5 Bf5 10.Qc4 Kg7 11.Qd4 Qe8 12.Qe3 Qd7 13.Ba6 Re8 14.Bb7 Re3 15.de3 c6+/–) 8...Qd5 (8...c5!?=) 9.cd5+= Ne7 (9...Nb8 10.Bd4 a5 11.b5+=) 10.Bb5 (10.Bd4 Bg7+/–) 10...Bd7+= 11.Bc4 (better is 11.Ba6 ba6 12.Bd4 Nd5 13.Nc3+=) 11...f5? (better is 11...b5 12.Bb3 Nf5=) 12.Bd4+– Rg8 13.d6! cd6 14.Bg8 Ng8 15.Nf3 Bc6 16.Nc3 Bf3 17.gf3 0–0–0 18.Rc1 Kb8 19.Nb5 Ne7 20.Ba7 Ka8 21.Bb6 Rc8 22.0–0 Bh6 23.Nc7 Kb8 24.Na6 Ka8?? 25.Nc7 Kb8 26.Nb5 Re8 27.Ba7 Ka8 28.Nc7 Ka7 29.Ne8 Bd2 30.Rcd1 Bc3 31.Rd6 Bb2 32.Rd7 Ng8 33.Nd6 Ba3 34.Ra1 Nf6 35.Rb7 Ka6 36.Ra3# 1–0. KrustytheClown – kong, ChessWorld.net, 2005.

3.a3 Nf6 4.e3 =.

3.b5 Nc5

4.a4 a6 5.d4 (5.Nf3 Nf6=) 5...Ne4+= 6.e3 ab5 7.Bb5 (7.f3 Nef6 8.Bb5 Bd7+=) 7...Bd7 8.f3 Bb5 9.ab5 Ra1 10.Ba1 Qa8 (10...Nd6!?+=) 11.fe4= Qa1 12.ed5 Qa5 13.Qd2 (13.Nd2 Qb5 14.c4 Qa5+/–) 13...Qb5= 14.Nf3?? (better is 14.Nc3 Qd7 15.e4=) 14...Qb1–+ 15.Kf2 (15.Qd1 Qb4 16.Qd2–+) 15...Qh1 16.Qa5 The mate threat is Qa8 16...f6 (16...e6 17.Qa8 Ke7 18.Qa3 Kf6 19.Qf8–+) 17.Qc7 (17.Qa8 Kf7 18.Qb7 Nh6–+) 17...g6 (17...Qd1 18.Qc8 Kf7 19.Qe6 Kg6 20.Qg4 Kh6 21.Qh4 Kg6 22.Qg4 Kh6 23.Qh4 Kg6 24.Qg4=) 18.Qb7 Nh6 (18...Bg7 19.Qc6 Kd8 20.Qa8 Kd7 21.Qc6 Kd8 22.Qa8 Kd7 23.Qc6 Kd8=) 19.c4 (19.Qc8 Kf7–+) 19...Ng4 20.Kg3 h5 (better is 20...f5 21.Qc8 Kf7 22.Qe6 Kg7 23.c5–+) 21.Qb2 (21.Qc8 Kf7 22.Qe6 Kg7–+) 21...Ne3 22.Qe2 (22.Kh3–+) 22...Qg2 (better is 22...Qc1–+) 23.Qg2 Ng2 24.Kg2 g5 (24...Bh6 25.c5–+) 25.c5 Kd7 26.Nd2 e6 27.c6 (27.de6 Ke6 28.Ne4 Kd5–+) 27...Kd6 28.Nc4 (28.de6 Ke6 29.Kf3 Bd6–+) 28...Kd5 29.c7 Bd6 (better is 29...Bc5 30.dc5 Kc4 31.Kf3–+) 30.c8Q Rc8 Decoy theme: c8 31.Nb6 Theme: Double Attack 31...Kd4 32.Nc8 Bc5 (32...Bh2 33.Kh2 f5 34.Nd6–+) 33.Kf3 (33.Kf2 f5–+) 33...e5 34.h3 (34.Ke2 f5–+) 34...Kd3 (34...Kd3 35.Nd6 Bd6–+) 0–1. Rush,Bradley – Schechter,Andrew, IECG, 1995.

4.d4 Ne4 5.Nc3 e6 (5...Ngf6 6.Ne4 Ne4 7.e3=+) 6.g3 (6.Ne4 de4 7.a3 Nf6=+) 6...Qf6 (6...Bb4 7.Qd3–/+) 7.Nf3 (better is 7.Ne4!? de4 8.Bg2=) 7...Bb4–/+ 8.Qd3 c5 (8...Bd7 9.a3 Ba5 10.Bg2–/+) 9.bc6=+ bc6 10.Bg2 Bc3 (10...Ba5!? 11.0–0 Rb8=) 11.Bc3= Nh6 (11...Ne7 12.Rb1=) 12.0–0+= Ng4 (12...a5 13.Ne5 Ba6 14.Qe3–/+) 13.h3 Nh6 (13...Nef2 14.Rf2 Nf2 15.Kf2+/–) 14.Ne5+/– Bd7 (14...Nc3 15.Qc3 0–0 16.Rfb1+= (16.Nc6?! Ba6+/–)) 15.Rab1 c5?? (better is 15...Nd6+/–) 16.Nd7+– Kd7 17.Qb5 (17.Be4?! c4 18.Qe3 de4 19.Rb7 Ke8 20.Qe4 Nf5+–) 17...Ke7 18.Qb7 Kd6 19.Be4 de4 (19...Qd8 20.dc5 Kc5 21.Rb5 Kd6+–) 20.dc5 (20...Kc5 21.Rb5 Kd6 22.Bb4#) 1–0. Whiterose – kong, ChessWorld.net, 2005.

4.e3 Bd7 5.c4 Nf6 6.Nf3 Bg4 7.d4 Bf3 8.Qf3 Ne6 9.c5 Ng5 10.Qd1 c6 11.a4 e6 12.Bd3 h5 13.0–0 Be7 14.Nd2 0–0 15.Nf3 Nf3 16.Qf3 g6 17.Qe2 Re8 18.Qc2 h4 19.f4 a5 20.Rf3 Nh5 21.g3 h3 (better is 21...hg3!? 22.hg3 Nf6+/–) 22.g4+– Nf6 23.Rh3 Ng4 24.Bg6! Kg7?? (24...fg6 25.Qg6) 25.Bh5 (25.Rh7 Kg8 26.Bf7 Kf8 27.Qg6 Bf6 28.Qg8 Ke7 29.Be8 Bg7 30.Qf7) 25...Nh6+– 26.Rg3 Kf8 (26...Kh8 27.Bf7! Rf8 28.Be6+–) 27.Qh7 Bf6 28.Qh6 Ke7 1–0. Bonetti,Shane – Kibitz, 2000.

2...c5

3.b5 Qa5 4.e3 b6 (4...Nd7 5.Nf3=) 5.Bc3 Qa4 6.Qf3 Qc2?? (better is 6...e6=) 7.Qd5+– Qg6 (7...Qc1 8.Ke2 Bd7 9.Qa8 Bb5 10.d3 Qc2 11.Nd2+–) 8.Qa8 Bg4 (8...Qd6+–) 9.Qb8 Kd7 10.Qb7 (better is 10.Qf8 h5 11.f3+–) 10...Ke6 11.Nf3 (11.Bc4 Kf5 12.Qd5 e5 13.Qe5) 11...Kf5 12.Nh4 (12.Bd3 Ke6 13.Qc6) 12...Kg5+– 13.Ng6 Kg6 14.h4 (14.Qa7 Nf6+–) 14...f6 15.Bd3 Kf7 16.Qd5 Ke8 17.Bf5 (better is 17.f3 Bc8 18.Qa8+–) 17...e6 18.Qe6 Kd8 19.Qd7# 1–0. slavisa99 – kilmer49, Live Game Caissa's Web, 2004.

3.b5 Qb6 4.e3 c4 5.a4 a6 6.Nf3 ab5 7.Nc3 ba4 8.Nd5 Qc6 9.e4 e6 (better is 9...Nd7!?=) 10.Ne5+/– Qd6 11.Nc4 Qd8 12.Ndb6 Ra6 13.Nc8 (13.Na4?! b5 14.Ne5 ba4 15.Ba6 Na6 16.Ra4 Nf6+/–) 13...Qc8 14.Ne3 Rb6 15.Bd4 Rb4 16.c3 Rb2? (16...Rd4 17.cd4 a3+–) 17.Qa4 Nc6 (17...b5 18.Bb5 Rb5 19.Qb5 Nc6 20.Nc4+–) 18.Nd1 e5 19.Nb2 (better is 19.Be3!? Rd2 20.Bd2 Nf6+–) 19...ed4 20.cd4 Nf6 (20...Kd8+–) 21.d5 Bc5 22.dc6 0–0 23.e5 Re8 24.Kd1 Re5 (24...b5 25.Bb5 (25.ef6?! ba4 26.Nd3 Bb6+=) 25...Ng4 26.Nd3 Nf2 27.Nf2 Bf2 28.c7 Qc7 29.Be8+–) 25.Qa8 Qa8 26.Ra8 Ne8 (26...Re8 27.cb7 Bd6+–) 27.cb7 1–0. pierre – qad, internet, 2010.

3.b5 d4 4.e3 e5 (--> 1.b4 e5 2.b5 d5 3.Bb2 d4 4.e3 c5).

3.b5 e6 4.e3 (--> 1.b4 d5 2.Bb2 e6 3.e3 c5 4.b5).

3.b5 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.b5 c5).

3.b5 b6

4.Na3 a6 A) 5.e3 e6 (5...Nf6 6.Nf3 c4 7.Be2 e6 8.Qc1 Bd7 9.ba6 Ra6 10.Nb1 Bd6+=; 5...c4 6.Qf3 Nf6 7.Bf6 ef6 8.Nc4 ab5 9.Nb2 Ra5 10.Qg3 Na6=; 5...Nd7 6.Nf3 Ngf6 7.ba6 c4 8.Nb5 Ba6 9.a4 e6 10.Be2 Be7=) 6.Qf3 Nf6 7.Ne2 Be7 8.Nf4 0–0 9.Bd3 e5 10.Be5 c4+=; B) 5.Nf3 e6 (5...f6 6.e3 e5 7.ba6 c4 8.Be2 Qd7 9.0–0 Na6 10.Nb1 Qb5=; 5...Bd7 6.ba6 f6 7.c4 dc4 8.Nc4 b5 9.Na3 e5 10.e4 Qa5=; 5...Nf6 6.e3 c4 7.Be2 e6 8.Qc1 Bd6 9.d3 Qc7 10.Bf6 gf6+=) 6.ba6 Ba6 7.Nb1 Nf6 8.d3 Bd6 9.e3 0–0 10.Be2 Bb7+=; C) 5.ba6 Ba6 (5...Nf6 6.e3 c4 7.d3 cd3 8.Bd3 e5 9.a7 Nc6 10.Bb5 Bd7=; 5...Nd7 6.c4 d4 7.e3 e5 8.Nb5 Ba6 9.Qe2 Bb5 10.cb5 Qe7=; 5...e6 6.e3 c4 7.Nb5 Na6 8.Nf3 Nf6 9.d3 cd3 10.Bd3 Bb4=) 6.Nf3 e6 7.e3 c4 8.Nb1 Nf6 9.d3 Bb4 10.Bc3 Nc6+=; D) 5.c4 e6 (5...Nf6 6.cd5 Qd5 7.Nf3 Nbd7 8.e3 e6 9.Bc4 Qf5 10.ba6 Ba6=; 5...Bf5 6.cd5 Qd5 7.f3 Bd7 8.e4 Qg5 9.Nc4 ab5 10.Nb6 Ra7+=; 5...dc4 6.Qa4 Nf6 7.Nf3 e6 8.e3 Be7 9.Nc4 0–0 10.d4 Bb7=) 6.ba6 Ba6 7.Qb3 Nc6 8.Nf3 Nf6 9.d3 Be7 10.e3 Bb7=.

4.Na3 Nd7 A) 5.Nf3 a6 (5...Ngf6 6.e3 a6 7.ba6 c4 8.d3 cd3 9.Bd3 e5 10.Bb5 Bb4=; 5...e6 6.e3 Ngf6 7.Be2 Bd6 8.0–0 0–0 9.c4 a6 10.d4 Qe7=; 5...c4 6.e4 e6 7.ed5 ed5 8.Qe2 Ne7 9.Qe3 Nc5 10.d3 cd3+=) 6.e3 c4 7.e4 e6 8.ed5 ed5 9.Qe2 Qe7 10.ba6 Ba6=; B) 5.f4 Ngf6 (5...a6 6.Nf3 e6 7.e3 Ngf6 8.Be2 c4 9.Nd4 Bc5 10.0–0 0–0+=; 5...e6 6.Nf3 a6 7.e3 Ngf6 8.Be2 c4 9.Nd4 Bc5 10.0–0 0–0+=; 5...Qc7 6.e3 e5 7.fe5 Ne5 8.Nf3 Bd6 9.c4 Nf6 10.cd5 Nf3=) 6.Nf3 a6 7.e3 e6 8.Be2 c4 9.Nd4 Bc5 10.0–0 0–0+=; C) 5.e3 a6 (5...e5 6.c4 d4 7.Qf3 Rb8 8.Bd3 Ngf6 9.Bf5 g6 10.Bc2 Bd6=; 5...Ngf6 6.Nf3 a6 7.ba6 c4 8.Nb5 Ba6 9.a4 e6 10.Be2 Be7=; 5...e6 6.Be2 a6 7.Nf3 Ngf6 8.ba6 Ba6 9.Nb5 c4 10.a4 Be7=) 6.Nf3 c4 7.e4 e6 8.ed5 ed5 9.Qe2 Qe7 10.Qe7 Ne7=; D) 5.c4 d4 (5...Ngf6 6.cd5 Nd5 7.Nf3 a6 8.e4 N5f6 9.Bd3 e5 10.Qa4 Be7=; 5...Bb7 6.Nf3 d4 7.d3 e5 8.e4 de3 9.fe3 Qe7 10.Be2 e4=; 5...e6 6.g3 Ngf6 7.Bg2 a6 8.Nf3 Be7 9.Ne5 Ne5 10.Be5 0–0=) 6.e3 e5 7.Qf3 Rb8 8.Bd3 Ngf6 9.Bf5 Bd6 10.d3 0–0=.

4.Na3 e6 A) 5.e3 Nf6 (5...a6 6.ba6 Ba6 7.Nb5 c4 8.a4 Nd7 9.Nf3 Nc5 10.Be5 Bb5=; 5...Bd7 6.c4 Nf6 7.Rc1 a6 8.Qb3 ab5 9.Nb5 Bb5 10.Qb5 Nbd7=; 5...Nd7 6.Nf3 Ngf6 7.Be2 Bd6 8.0–0 0–0 9.c4 a6 10.d4 Qe7=) 6.Nf3 Bd6 7.Be2 0–0 8.0–0 c4 9.Nb1 a6 10.Nc3 Bd7+=; B) 5.Nf3 Nf6 (5...a6 6.ba6 Ba6 7.e3 c4 8.Nb1 Nf6 9.d3 Bb4 10.Bc3 Nc6+=; 5...f6 6.e3 a6 7.ba6 c4 8.Nb5 Ba6 9.a4 Qd7 10.Nc3 Bb4=; 5...c4 6.e4 a6 7.ed5 ed5 8.Qe2 Qe7 9.ba6 Ba6 10.Nb1 Nc6=) 6.e3 c4 7.Be2 Bd7 8.Qb1 Bd6 9.0–0 Qe7 10.Qc1 a6–/+; C) 5.d3 d4 (5...a6 6.Nf3 Nf6 7.e3 c4 8.Qc1 Ba3 9.Ba3 ab5 10.Qb2 Bd7=; 5...Nf6 6.Nf3 a6 7.e3 c4 8.Qc1 Ba3 9.Ba3 ab5 10.Qb2 Bd7+=; 5...Bb7 6.Nf3 a6 7.e3 Nf6 8.Be2 Bd6 9.0–0 0–0 10.ba6 Ba6=) 6.c3 a6 7.Nf3 Bb7 8.ba6 Ra6 9.Nb5 Nc6 10.e4 de3+=; D) 5.c4 a6 (5...Bb7 6.Nf3 Nf6 7.e3 Bd6 8.Be2 0–0 9.0–0 Nbd7 10.d3 Qc7=; 5...Nf6 6.Nf3 Bd6 7.e3 0–0 8.Be2 a6 9.0–0 Nbd7 10.d4 Qe7=; 5...Nd7 6.g3 Ngf6 7.Bg2 a6 8.Nf3 Be7 9.Ne5 Ne5 10.Be5 0–0=) 6.ba6 Ba6 7.Qb3 Nc6 8.Nf3 Nf6 9.d3 Be7 10.e3 Bb7=.

4.Na3 Nf6 A) 5.e3 a6 (5...e6 6.Nf3 Bd6 7.Be2 0–0 8.c4 a6 9.0–0 Nbd7 10.d4 Qe7=; 5...c4 6.Bf6 ef6 7.Nc4 a6 8.Nb2 Ba3 9.Rb1 0–0 10.Na4 Bd6+=; 5...Nbd7 6.Nf3 a6 7.ba6 c4 8.Nb5 Ba6 9.a4 e6 10.Be2 Be7=) 6.Nf3 c4 7.Be2 e6 8.Qc1 Bd7 9.ba6 Ra6 10.Ne5 Bd6+=; B) 5.c4 d4 (5...a6 6.cd5 Qd5 7.Nf3 Nbd7 8.e3 e6 9.Bc4 Qf5 10.ba6 Ba6=; 5...e6 6.Nf3 Bd6 7.e3 0–0 8.Be2 a6 9.0–0 Nbd7 10.d4 Qe7=; 5...Bf5 6.cd5 Nd5 7.d3 Bd7 8.e4 Nf6 9.Qf3 e6 10.Be2 a6=) 6.g3 Bb7 7.Nf3 e5 8.d3 a6 9.Bg2 Bd6 10.0–0 0–0+=; C) 5.d3 e6 (5...a6 6.Nf3 e6 7.e3 c4 8.Qc1 Ba3 9.Ba3 ab5 10.Qb2 Bd7+=; 5...d4 6.e3 a6 7.Qf3 Ra7 8.Qg3 Bd7 9.ed4 ab5 10.Nf3 b4=; 5...Bg4 6.h3 Bd7 7.Nf3 a6 8.c4 ab5 9.Nb5 Bb5 10.cb5 e6+=) 6.e4 d4 7.e5 Nd5 8.Nf3 Bd7 9.Be2 Be7 10.0–0 0–0+=; D) 5.Nf3 a6 (5...e6 6.e3 Bd6 7.Be2 0–0 8.c4 a6 9.0–0 Nbd7 10.d4 Qe7=; 5...Nbd7 6.e3 a6 7.ba6 c4 8.d3 cd3 9.Bd3 e5 10.Bb5 Bb4=; 5...Bd7 6.e3 e6 7.Ne5 Bd6 8.Ng4 Be7 9.Qf3 Ng4 10.Qg4 Bf6=) 6.e3 c4 7.Be2 e6 8.Qc1 Bd7 9.ba6 Ra6 10.Nb1 Bd6+=.

4.c4 a6 A) 5.e3 e6 (5...ab5 6.cd5 Ra5 7.Nf3 Nf6 8.a4 ba4 9.Bc3 Ra7 10.Ra4 Ra4=; 5...Nf6 6.cd5 Qd5 7.Nf3 Bg4 8.Nc3 Qd8 9.ba6 Na6 10.Bc4 Bd7+=; 5...dc4 6.Qf3 Ra7 7.Qg3 c3 8.Bc3 e5 9.Be5 Nd7 10.Bg7 Bg7+– 1.56) 6.Nf3 Nf6 7.Nc3 Be7 8.d4 ab5 9.Nb5 cd4 10.Bd4 0–0=; B) 5.Qa4 d4 (5...Nf6 6.cd5 Qd5 7.Nc3 Qd6 8.e4 Nfd7 9.Nf3 Bb7 10.Bc4 e6=; 5...e6 6.Nf3 Nd7 7.e3 Bb7 8.cd5 ab5 9.Qd1 Bd5 10.Bb5 Ngf6=; 5...dc4 6.e4 Bb7 7.Bc4 ab5 8.Qb5 Bc6 9.Qb3 e6 10.Bb5 Ra5=) 6.Nf3 Nd7 7.ba6 Ba6 8.e3 Bb7 9.Qb3 e5 10.d3 Bc6+=; C) 5.Na3 e6 (5...Nf6 6.cd5 Qd5 7.Nf3 Nbd7 8.e3 e6 9.Bc4 Qf5 10.ba6 Ba6=; 5...Bf5 6.cd5 Qd5 7.f3 Bd7 8.e4 Qg5 9.Nc4 ab5 10.Nb6 Ra7+=; 5...ab5 6.Nb5 Bb7 7.Qb3 Na6 8.Nc3 dc4 9.Qb5 Qd7 10.Qd7 Kd7 11.Na4=) 6.ba6 Ba6 7.Qb3 Nc6 8.Nf3 Nf6 9.d3 Be7 10.e3 Bb7=; D) 5.cd5 Nf6 (5...ab5 6.e4 Ra5 7.Nf3 Nf6 8.Qc2 e6 9.Bf6 gf6 10.d4 c4=; 5...Qd5 6.Nc3 Qd6 7.Nf3 Nf6 8.e3 e6 9.Qa4 Bd7 10.Bc4 Qc7=; 5...Qd7 6.e4 ab5 7.Nc3 Ra5 8.Nf3 b4 9.Ne5 Qb7 10.Nb5 Nf6+=) 6.Bf6 ef6 7.Nc3 Bd6 8.e4 f5 9.d4 0–0 10.dc5 bc5=.

4.c4 dc4 A) 5.Qa4 Bb7 (5...Nf6 6.Nf3 e6 7.Na3 a6 8.e3 Be7 9.Nc4 0–0 10.d4 Bb7=; 5...Nd7 6.e4 Ngf6 7.Bc4 Bb7 8.d3 e6 9.Nf3 Be7 10.0–0 0–0=; 5...a6 6.e4 Bb7 7.Bc4 ab5 8.Qb5 Bc6 9.Qb3 e6 10.f3 Nf6=) 6.Na3 a6 7.Nc4 Nd7 8.Nf3 Ngf6 9.Nfe5 Ne5 10.Be5 Nd7=; B) 5.Na3 a6 (5...Nf6 6.e3 a6 7.Bc4 e6 8.d3 Nbd7 9.Qf3 Ra7 10.ba6 Be7=; 5...Bb7 6.f3 Nf6 7.e4 e6 8.Bc4 a6 9.Ne2 Nbd7 10.Rc1 Bd6=; 5...e6 6.Nf3 a6 7.e3 Nf6 8.Bc4 Bd6 9.ba6 0–0 10.Nb5 Be7=) 6.Qa4 Nf6 7.Nf3 e6 8.e3 Be7 9.Nc4 0–0 10.d4 Bb7=; C) 5.e4 e6 (5...a6 6.Bc4 ab5 7.Bb5 Bd7 8.Qe2 Nf6 9.Nf3 e6 10.0–0 Be7=; 5...Bb7 6.f3 a6 7.Bc4 ab5 8.Bb5 Bc6 9.Nc3 e5 10.Bc4 Be7=; 5...Nf6 6.Bc4 a6 7.Nc3 e5 8.Qb3 Ra7 9.Nf3 Bd6 10.ba6 Ba6+=) 6.Bc4 Nf6 7.e5 Nd5 8.Nf3 a6 9.Nc3 Be7 10.d4 ab5=; D) 5.e3 Bb7 (5...Be6 6.Qa4 a6 7.Nc3 Nf6 8.Nf3 Nbd7 9.ba6 Bf5 10.Bc4 e6+/–; 5...a6 6.Qf3 Ra7 7.Qg3 Nf6 8.Qb8 Rb7 9.Qa8 ab5 10.Nc3 b4+– 2.09) 6.Nf3 Nf6 7.Bc4 e6 8.d4 cd4 9.Bd4 Bd6 10.0–0 0–0=.

4.c4 e6 A) 5.Na3 Nf6 (5...Bb7 6.Nf3 Nf6 7.e3 Bd6 8.Be2 0–0 9.0–0 Nbd7 10.d3 e5=; 5...a6 6.ba6 Ba6 7.Qb3 Nc6 8.Nf3 Nf6 9.d3 Be7 10.e3 Bb7=; 5...Nd7 6.Nf3 Ngf6 7.e3 Bd6 8.Be2 0–0 9.0–0 a6 10.d4 Qe7=) 6.g3 a6 7.Bg2 Bb7 8.Nh3 Be7 9.0–0 0–0 10.Nf4 Qd7+=; B) 5.Nf3 Nf6 (5...a6 6.Qa4 Nd7 7.e3 Bb7 8.cd5 ab5 9.Qd1 Bd5 10.Bb5 Ngf6=; 5...Ne7 6.d4 a6 7.dc5 bc5 8.a4 ab5 9.cb5 Bb7 10.e3 c4=; 5...dc4 6.e4 Bb7 7.Nc3 Nf6 8.Qc2 a6 9.Bc4 Be7 10.Rd1 0–0=) 6.Qa4 Bd6 7.g3 0–0 8.Bg2 a6 9.0–0 Bb7 10.d3 Nbd7+=; C) 5.Qa4 Nd7 (5...Nf6 6.g3 Bb7 7.Bg2 a6 8.Bf6 Qf6 9.Nc3 Nd7 10.Rb1 ab5=; 5...a6 6.Nf3 Nd7 7.e3 Bb7 8.cd5 ab5 9.Qd1 Bd5 10.Bb5 Ngf6=; 5...Bb7 6.Nf3 Nf6 7.Ne5 Bd6 8.Nc6 Bc6 9.bc6 0–0 10.e3 d4+=) 6.g3 a6 7.Bg2 Bb7 8.Bc3 ab5 9.Qb5 Ba6 10.Qb2 d4–/+; D) 5.e3 Nd7 (5...a6 6.Qf3 Ne7 7.Nc3 Bb7 8.Nh3 Ra7 9.ba6 Ba6 10.cd5 Nd5=; 5...Ne7 6.Nf3 a6 7.Nc3 Bb7 8.ba6 Ba6 9.d3 Nbc6 10.Be2 d4=; 5...Nf6 6.d4 Bd6 7.dc5 bc5 8.Nf3 0–0 9.Bd3 Nbd7 10.Nc3 Nb6=) 6.cd5 ed5 7.Nf3 Ngf6 8.Be2 a6 9.Nc3 Bd6 10.ba6 Ba6=.

4.e3 a6 A) 5.Nf3 Nd7 (5...Nf6 6.ba6 Ba6 7.Bf6 Bf1 8.Be7 Be7 9.Rf1 0–0 10.c3 Re8=; 5...e6 6.Be2 Nf6 7.Nc3 d4 8.Nb1 de3 9.fe3 Bd6 10.Na3 0–0=; 5...f6 6.ba6 Ba6 7.Ba6 Na6 8.Nc3 e6 9.0–0 Bd6 10.Rb1 Ne7=) 6.Be2 Ngf6 7.0–0 e6 8.Ne5 Ne5 9.Be5 Bd6 10.f4 c4=; B) 5.Be2 e6 (5...f6 6.d4 e6 7.Nf3 ab5 8.Bb5 Bd7 9.Be2 c4 10.e4 Bb4=; 5...Nf6 6.Nf3 e6 7.Nc3 d4 8.Nb1 de3 9.fe3 Bd6 10.Na3 0–0=; 5...c4 6.ba6 e6 7.Nf3 Nf6 8.d3 Bb4 9.Bc3 cd3 10.cd3 Na6=) 6.Nf3 Nf6 7.Nc3 Be7 8.0–0 0–0 9.a4 Nbd7 10.ba6 e5=; C) 5.Nc3 Nf6 (5...d4 6.Ne4 e5 7.Qf3 Ra7 8.Bc4 f5 9.Ng3 Qf6 10.Qh5 g6=; 5...e6 6.Nf3 Nf6 7.Be2 Be7 8.0–0 0–0 9.a4 Bb7 10.ba6 Na6=; 5...e5 6.Qh5 Qd6 7.f4 ef4 8.Qd5 fe3 9.de3 Ra7 10.Qd6 Bd6+/–) 6.Nf3 Nbd7 7.ba6 e5 8.Bb5 d4 9.Ne2 Bd6 10.Ng3 0–0=; D) 5.ba6 Ba6 (5...Na6 6.Nf3 Nc7 7.Be2 f6 8.d4 Ba6 9.Nbd2 Be2 10.Qe2 e6=; 5...e6 6.Bb5 Bd7 7.a4 Na6 8.Nf3 Nc7 9.Bd7 Qd7 10.Nc3 Nf6=; 5...Bd7 6.Nc3 Nf6 7.Nf3 Na6 8.Be2 e6 9.Ne5 Bd6 10.Nd7 Nd7=) 6.d3 Nc6 7.Nf3 Qd6 8.Nbd2 e5 9.c4 b5 10.cd5 Qd5=.

4.e3 e6 A) 5.Nf3 Nd7 (5...Nf6 6.Be2 Bd6 7.0–0 Nbd7 8.d4 a6 9.c4 0–0 10.cd5 Nd5=; 5...a6 6.Be2 Nf6 7.Nc3 d4 8.Nb1 de3 9.fe3 Bd6 10.Na3 0–0=; 5...f6 6.Be2 e5 7.0–0 a6 8.Nc3 d4 9.ed4 cd4 10.Nb1 Bc5=) 6.Nc3 Ngf6 7.Bd3 Bd6 8.0–0 0–0 9.Rb1 e5 10.Bf5 e4+=; B) 5.Nc3 Nf6 (5...a6 6.Nf3 Nf6 7.Be2 d4 8.Nb1 de3 9.fe3 Bd6 10.Na3 0–0=; 5...Bb7 6.Nf3 Nf6 7.Be2 Bd6 8.d4 c4 9.0–0 0–0 10.a4 a6=; 5...d4 6.ed4 cd4 7.Na4 a6 8.Qf3 Ra7 9.Qb3 e5 10.ba6 Nd7=) 6.Nf3 Bd6 7.Be2 0–0 8.d4 c4 9.0–0 Nbd7 10.a4 Qe7+=; C) 5.Na3 Nf6 (5...a6 6.ba6 c4 7.Nb5 Na6 8.Nf3 Nf6 9.d3 cd3 10.Bd3 Bb4=; 5...Bd7 6.c4 a6 7.Nf3 Nf6 8.Ne5 Be7 9.Nd7 Qd7 10.ba6 0–0=; 5...Nd7 6.Be2 Ngf6 7.Nf3 Bd6 8.0–0 0–0 9.c4 a6 10.d4 Qe7=) 6.Nf3 Bd6 7.Be2 0–0 8.0–0 c4 9.Nb1 a6 10.Nc3 Bd7+=; D) 5.Be2 Nf6 (5...a6 6.Nf3 Nf6 7.Nc3 d4 8.Nb1 de3 9.fe3 ab5 10.Bb5 Bd7=; 5...Nd7 6.Nf3 Ngf6 7.Na3 Bd6 8.c4 0–0 9.0–0 a6 10.d4 Qe7=; 5...c4 6.d3 cd3 7.Bd3 a6 8.Nf3 Nf6 9.Nc3 Bd6 10.0–0 0–0=) 6.Nf3 Bd6 7.0–0 0–0 8.c4 a6 9.Na3 Nbd7 10.d4 Qe7=.

4.e3 Bf5 A) 5.Nf3 a6 (5...Nf6 6.Be2 a6 7.0–0 c4 8.ba6 Ra6 9.d3 cd3 10.cd3 e6+=; 5...e6 6.Be2 a6 7.0–0 c4 8.ba6 Na6 9.d3 cd3 10.cd3 Nc5+=; 5...Nh6 6.Be2 f6 7.d4 c4 8.Nfd2 e6 9.e4 de4 10.f3 c3+/–) 6.ba6 Na6 7.Bb5 Bd7 8.a4 Nc7 9.Bd7 Qd7 10.Nc3 f6=; B) 5.Ne2 a6 (5...Nf6 6.Nf4 e6 7.Be2 Bd6 8.g4 Be4 9.f3 Ng4 10.h4 Bf4+/–; 5...Nd7 6.Ng3 Bg6 7.h4 f6 8.Nc3 Bf7 9.Be2 e5 10.0–0 Ne7=; 5...e6 6.Ng3 Bg6 7.h4 f6 8.h5 Bf7 9.e4 Nh6 10.Qe2 d4=) 6.Nf4 Qd6 7.c4 dc4 8.Qf3 Ra7 9.Bc4 Nf6 10.Nh5 Bg6=; C) 5.Nc3 e6 (5...Nf6 6.Nf3 Nbd7 7.Nh4 Bg4 8.f3 Be6 9.g4 d4 10.Ne2 g5=; 5...e5 6.Qf3 Be6 7.e4 d4 8.Nd5 Bd5 9.ed5 Nf6 10.Bd3 Qd6=; 5...Nh6 6.Nf3 e6 7.Be2 d4 8.Na4 d3 9.cd3 Bd3 10.Ne5 Be2+=) 6.Nge2 Nf6 7.Ng3 Bg6 8.Be2 Bd6 9.0–0 0–0 10.f4 Qc7=; D) 5.Be2 e6 (5...a6 6.Nf3 f6 7.Nh4 Bc8 8.ba6 Kf7 9.Bb5 g6 10.a7 Ra7=; 5...f6 6.f4 a6 7.Nf3 e6 8.Nh4 Ne7 9.Nf5 Nf5 10.ba6 Kf7+=; 5...Nd7 6.Nf3 Ndf6 7.0–0 Nh6 8.Ne5 Qd6 9.a4 Nd7 10.Nd7 Bd7+=) 6.Nf3 a6 7.0–0 c4 8.ba6 Na6 9.Nd4 Bg6 10.d3 cd3=.

4.e3 Nf6 A) 5.Nf3 e6 (5...a6 6.ba6 Ba6 7.Bf6 Bf1 8.Be7 Be7 9.Rf1 0–0 10.c3 Re8=; 5...Bg4 6.h3 Bd7 7.Be5 Bf5 8.Be2 e6 9.Nh4 Bg6 10.Ng6 hg6=; 5...Nbd7 6.Be2 a6 7.0–0 e6 8.Nc3 Bd6 9.ba6 Ba6 10.Ba6 Ra6=) 6.Be2 Bd6 7.0–0 0–0 8.Na3 c4 9.Nb1 a6 10.Nc3 Bd7+=; B) 5.Na3 a6 (5...e6 6.Be2 Bd6 7.Nf3 0–0 8.c4 a6 9.0–0 Nbd7 10.d4 Qe7=; 5...c4 6.Bf6 ef6 7.Nc4 a6 8.Nb2 Ba3 9.Rb1 0–0 10.Na4 Nd7+=; 5...Bf5 6.Ne2 Nbd7 7.Ng3 Bg6 8.h4 h6 9.h5 Bh7 10.Be2 e5=) 6.Nf3 c4 7.Be2 e6 8.Qc1 Bd7 9.ba6 Ra6 10.Nb1 Bd6+=; C) 5.a4 e6 (5...Bf5 6.Ne2 Nbd7 7.Ng3 Bg6 8.h4 h6 9.h5 Bh7 10.Be2 e5+=; 5...a6 6.ba6 Ba6 7.Ba6 Na6 8.Bf6 gf6 9.Nf3 Rg8 10.0–0 Qd7=; 5...Nbd7 6.Nf3 e6 7.Be2 Bd6 8.0–0 0–0 9.d4 a6 10.c4 Bb7=) 6.Nf3 Bd6 7.Be5 0–0 8.d4 c4 9.Be2 a6 10.Nbd2 Be5+=; D) 5.Be2 e6 (5...a6 6.Nf3 e6 7.Nc3 Be7 8.0–0 0–0 9.a4 Bb7 10.ba6 Na6=; 5...Nbd7 6.Nf3 a6 7.0–0 e6 8.Ne5 Ne5 9.Be5 Bd6 10.f4 c4=; 5...Qd6 6.Nf3 Nbd7 7.d4 a6 8.0–0 c4 9.Ba3 Qc7 10.ba6 Ra6=) 6.Nf3 Bd6 7.0–0 0–0 8.a4 Nbd7 9.d4 a6 10.c4 cd4=.

4.Nf3 a6 A) 5.ba6 Ba6 (5...e6 6.a7 Ra7 7.Nc3 Nf6 8.e3 Be7 9.Nb5 Ra8 10.Be5 Na6=; 5...Nf6 6.e3 Na6 7.Bb5 Bd7 8.a4 Nc7 9.Bd7 Nd7 10.0–0 e6=; 5...Na6 6.e3 Nc7 7.Be2 f6 8.d4 e6 9.Nbd2 Bd6 10.e4 Nh6=) 6.d3 Nf6 7.e3 e6 8.Nbd2 Bd6 9.e4 Bf4 10.ed5 ed5=; B) 5.e3 e6 (5...Nf6 6.Be2 e6 7.Nc3 d4 8.Nb1 de3 9.fe3 Bd6 10.Na3 0–0=; 5...f6 6.ba6 Ba6 7.Ba6 Na6 8.Nc3 e6 9.0–0 Bd6 10.Rb1 Ne7=; 5...Bd7 6.Nc3 Nf6 7.Ne5 Bc8 8.ba6 Ba6 9.Ba6 Ra6 10.0–0 e6=) 6.Nc3 Nf6 7.ba6 Ba6 8.Be2 Be7 9.Nb5 0–0 10.a4 Nc6=; C) 5.Na3 e6 (5...f6 6.e3 e5 7.ba6 c4 8.Be2 Qd7 9.0–0 Na6 10.Nb1 Qb5=; 5...Bd7 6.ba6 f6 7.c4 dc4 8.Nc4 b5 9.Na3 e5 10.e4 Qa5=; 5...ab5 6.Nb5 f6 7.Nc3 d4 8.Nb1 e5 9.e4 de3 10.fe3 e4+=) 6.ba6 Ba6 7.e3 Bf1 8.Rf1 Nf6 9.Bf6 Qf6 10.Nb5 Na6+=; D) 5.a4 e6 (5...Nf6 6.e3 e6 7.Na3 c4 8.d3 cd3 9.Bd3 Bb4 10.c3 Be7=; 5...ab5 6.ab5 Ra1 7.Ba1 Nf6 8.e3 e6 9.Be2 Nbd7 10.0–0 Bd6=; 5...f6 6.Nc3 d4 7.Ne4 e5 8.e3 Qd5 9.d3 Qd7 10.c4 de3=) 6.e3 Nf6 7.Na3 Nbd7 8.Be2 Bd6 9.ba6 Ba6 10.Nb5 Bb5=.

4.Nf3 Bb7 5.Na3 f6 (5...e6 6.e3 Nf6 7.Be2 Bd6 8.Rb1 0–0 9.c4 Nbd7 10.d3 Qe7+=; 5...Nf6 6.e3 e6 7.Be2 Bd6 8.0–0 0–0 9.d3 Nbd7 10.c4 Qc7=; 5...a6 6.e3 e6 7.ba6 Ba6 8.Bb5 Bb5 9.Nb5 f6 10.a4 e5=) 6.e3 e5 7.Be2 c4 8.d4 e4 9.Ng1 a6 10.ba6 Ba6 +=.

4.Nf3 Bb7 5.a4 e6 (5...Nf6 6.Na3 e6 7.e3 Bd6 8.Be2 0–0 9.0–0 Nbd7 10.d3 Re8=; 5...f6 6.e3 e5 7.d4 e4 8.Nfd2 c4 9.Be2 a6 10.0–0 Bd6=; 5...Nd7 6.e3 Ngf6 7.Be2 Qc7 8.a5 e5 9.a6 Bc8 10.d3 Bd6=) 6.e3 Nf6 7.a5 ba5 8.Bc3 Bd6 9.Ba5 Qe7 10.Be2 a6 +=.

4.Nf3 Bb7 5.Nc3 Nf6 (5...d4 6.Na4 a6 7.e3 ab5 8.Bb5 Bc6 9.c4 Bb5 10.cb5 e5=; 5...e6 6.e3 Nf6 7.Be2 Bd6 8.0–0 0–0 9.d4 Nbd7 10.Re1 Qc7+=; 5...Nd7 6.d4 Ngf6 7.e3 e6 8.dc5 Nc5 9.Be2 Bd6 10.0–0 0–0+=) 6.e3 e6 7.d4 c4 8.Ne5 Bd6 9.Be2 0–0 10.0–0 Nbd7 +=.

4.Nf3 Bb7 5.e3 Nd7 (5...Nf6 6.Be2 e6 7.Na3 Bd6 8.0–0 0–0 9.d3 a6 10.ba6 Ba6=; 5...e6 6.Be2 Nf6 7.0–0 Bd6 8.d4 Nbd7 9.dc5 Nc5 10.Be5 0–0=; 5...a6 6.Be2 e6 7.0–0 Nf6 8.Ne5 Bd6 9.ba6 Ba6 10.d3 0–0=; 5...f6 6.d4 e6 7.Be2 a6 8.0–0 Bd6 9.dc5 bc5 10.Nc3 Ne7=) 6.c4 (6.Be2 Qc7 7.Na3 e5 8.d3 Ngf6 9.c4 e4 10.Nh4 d4=) 6...Ngf6 7.Qb3 (7.cd5 Nd5 8.Bc4 e6 9.0–0 a6 10.ba6 Ba6=) 7...e6 8.d4 (8.Be2 dc4 9.Qc4 a6 10.Qf4 Be7=) 8...Bd6 9.Nbd2 (9.cd5 Bd5 10.Bc4 Bf3+=) 9...0–0 (9...cd4 10.Bd4 e5+=) 10.Bd3 (10.cd5 Bd5+=) 10...dc4 (10...cd4+=) 11.Bc4 cd4 12.Bd4 Nc5 13.Bc5 Bc5 14.0–0 h6 15.Rad1 Qe7 16.a4 Rfd8 17.Ne5 Rac8 18.Nd3 Bd6 19.Rfe1 Ng4 20.h3 Qh4 21.Rf1?? (21.hg4 Qh2 22.Kf1 Qg2 23.Ke2 Qg4 24.f3 Bf3 25.Nf3 Qc4 26.Qc4 Rc4 27.Nde5 Rc2 28.Kf1+=) 21...Ne3 (21...Qh3! 22.Nf3 Bf3 23.gh3 Bh2) 22.fe3–/+ Qg3?? (better is 22...Bg2 23.Rf2 Bh3–+) 23.Nf3+– Bb8 24.Nb2 Rd1 25.Nd1 (25.Qd1 Be5 26.Qb3 Bb2 27.Be6 fe6 28.Qb2 Rc4+=) 25...Be4 26.Be6?? (better is 26.Rf2 Bf3 27.Rf3 Qh2 28.Kf2+–) 26...Rc2= 27.Bf7 Kh8 28.Qc2 Bc2 29.Nf2 Ba4?? (29...Qd6 30.Ng4 Ba4–/+) 30.Bc4?? (better is 30.Rc1 Bb5 31.Ne4+–) 30...Bc2 31.Nh1 (better is 31.Rc1!? Bf5 32.e4+=) 31...Qc7–/+ 32.Be2. JAY2PLAY – finnforce, ChessWorld.net, 2012.

4.Nf3 e6 A) 5.Nc3 Nf6 (5...a6 6.e3 Nf6 7.Be2 d4 8.Nb1 de3 9.fe3 Bd6 10.Na3 0–0=; 5...d4 6.Ne4 Bb7 7.Ng3 Bf3 8.ef3 Nf6 9.Ne4 Bd6 10.c3 Be5=; 5...Bb7 6.e3 Nf6 7.Be2 Bd6 8.d4 c4 9.0–0 0–0 10.a4 a6=) 6.e3 Bd6 7.Be2 e5 8.0–0 0–0 9.d4 e4 10.Ne5 cd4+=; B) 5.Na3 Nf6 (5...a6 6.c4 Nf6 7.ba6 Be7 8.Ne5 0–0 9.g3 dc4 10.Nac4 Ra6+=; 5...f6 6.e3 a6 7.ba6 c4 8.Nb5 Ba6 9.a4 Qd7 10.Nc3 Bb4=; 5...c4 6.e4 a6 7.ed5 ed5 8.Qe2 Qe7 9.ba6 Ba6 10.Nb1 Nc6=) 6.e3 c4 7.Be2 Bd7 8.0–0 Ba3 9.Ba3 Bb5 10.Nd4 Bd7+=; C) 5.a3 Nf6 (5...a6 6.e3 Nf6 7.Be2 Bd6 8.Be5 0–0 9.0–0 Be5 10.Ne5 Nfd7+=; 5...Nd7 6.e3 Ngf6 7.Be2 Bd6 8.Nc3 0–0 9.0–0 e5 10.Nh4 Nb8+=; 5...Bb7 6.e3 Nf6 7.Be2 Bd6 8.0–0 0–0 9.Be5 a6 10.d4 ab5+=) 6.e3 Bd6 7.Be2 0–0 8.Be5 a6 9.0–0 ab5 10.Bb5 Ba6+=; D) 5.e3 Nf6 (5...a6 6.Be2 Nf6 7.Nc3 d4 8.Nb1 de3 9.fe3 Bd6 10.Na3 0–0=; 5...f6 6.Be2 e5 7.0–0 a6 8.d4 e4 9.Nfd2 c4 10.ba6 Ra6=) 6.Be2 Bd6 7.0–0 0–0 8.c4 a6 9.Na3 Nbd7 10.d4 Qe7=.

4.Nf3 f6 A) 5.Nc3 e6 (5...a6 6.ba6 d4 7.Nb5 e5 8.e3 Na6 9.Bc4 Ne7 10.ed4 ed4+=; 5...d4 6.Ne4 e5 7.e3 Bb7 8.Ng3 a6 9.Bc4 Qd7 10.a4 ab5=; 5...Bb7 6.d4 e6 7.e3 c4 8.Be2 Bd6 9.0–0 Ne7 10.a4 0–0=) 6.e3 a6 7.ba6 Ba6 8.Ba6 Na6 9.0–0 Bd6 10.Rb1 Ne7=; B) 5.e3 e5 (5...a6 6.ba6 e5 7.Nc3 Ne7 8.Bb5 Kf7 9.e4 Na6 10.ed5 Nc7=; 5...Qd7 6.c4 e5 7.d4 ed4 8.ed4 Qe6 9.Be2 dc4 10.0–0 Ne7+/–; 5...e6 6.Be2 e5 7.0–0 a6 8.d4 e4 9.Nfd2 c4 10.ba6 Ne7=) 6.d4 ed4 7.ed4 c4 8.Be2 Qd7 9.a4 a6 10.0–0 ab5=; C) 5.c4 e6 (5...e5 6.cd5 e4 7.Ng1 Qd5 8.Nc3 Qe6 9.e3 Bb7 10.d3 ed3=; 5...d4 6.e3 de3 7.fe3 a6 8.Qc2 g6 9.Nc3 Bf5 10.e4 Bg4+=; 5...Qd7 6.cd5 Qb5 7.Qc2 e5 8.d4 Qd7 9.de5 Qd5 10.e4 Qb7+/–) 6.e3 Bd6 7.d4 Ne7 8.cd5 ed5 9.dc5 bc5 10.Nc3 Qa5=.

4.Nf3 Nf6 A) 5.Na3 e6 (5...a6 6.e3 c4 7.Be2 e6 8.Qc1 Bd7 9.ba6 Ra6 10.Nb1 Bd6+=; 5...Nbd7 6.e3 a6 7.ba6 c4 8.Nb5 Ba6 9.a4 e6 10.Be2 Be7=; 5...Bf5 6.e3 e6 7.Be2 a6 8.Nh4 c4 9.Nf5 ef5 10.ba6 Ba3+=) 6.e3 Bd6 7.Be2 0–0 8.0–0 c4 9.Nb1 a6 10.Nc3 Bd7+=; B) 5.e3 e6 (5...a6 6.ba6 Na6 7.Bb5 Bd7 8.a4 Nc7 9.Bd7 Nd7 10.0–0 e6=; 5...Bg4 6.Be2 e6 7.h3 Bf3 8.Bf3 a6 9.Na3 Bd6 10.c4 Nbd7=; 5...Bd7 6.Be2 a6 7.ba6 e6 8.Be5 Be7 9.0–0 0–0 10.Nc3 Na6=) 6.Be2 Bd6 7.Be5 0–0 8.0–0 a6 9.Nc3 Ne4 10.Ne4 de4+=; C) 5.Ne5 a6 (5...e6 6.e3 Bd6 7.f4 0–0 8.Be2 a6 9.0–0 ab5 10.Bb5 Ba6=; 5...Qc7 6.e3 a6 7.Be2 c4 8.ba6 Ba6 9.d3 e6 10.0–0 Bd6=; 5...Qd6 6.e3 Nbd7 7.f4 a6 8.Be2 e6 9.0–0 c4 10.a4 ab5=) 6.e3 e6 7.Be2 Bd6 8.0–0 c4 9.ba6 0–0 10.d3 Ba6=; D) 5.a4 e6 (5...a6 6.e3 e6 7.Na3 c4 8.d3 cd3 9.Bd3 Bb4 10.c3 Be7=; 5...Bf5 6.e3 Nbd7 7.Nh4 Bg4 8.f3 Be6 9.f4 Bg4 10.Be2 Be2=; 5...Bg4 6.Ne5 Bf5 7.e3 Nbd7 8.g4 Ne5 9.gf5 Neg4 10.Bg2 Qd7=) 6.e3 Bd6 7.Be2 0–0 8.0–0 Nbd7 9.d4 a6 10.c4 cd4=.

3.bc5 Qa5

4.e3 Nc6 +=.

4.Nf3 Qc5 5.e3 Nc6 6.Be2 Bf5 7.d3 Qb6 8.Ba3 (8.Bc3 Qc7=) 8...e5 (8...Nf6 9.0–0=) 9.Bf8 Kf8 10.0–0 Nf6 11.Nbd2 g6 (11...Kg8 12.Rb1 Qc7 13.d4=) 12.c4 d4 (12...Kg7 13.cd5 Nd5 14.Rb1=) 13.e4 (13.Rb1 Qc7 14.ed4 ed4+=) 13...Be6 (13...Bc8 14.Ng5+=) 14.Nb3 (14.Rb1 Qc7=) 14...Qc7 15.Qd2 (15.Ng5 Kg7=) 15...Kg7 16.Ng5 Rhe8 (16...Bg4 17.Bg4 Ng4 18.h3+=) 17.f4 Rad8 (17...ef4 18.Rae1=) 18.f5 (18.Rab1 Qd6=) 18...Bc8 19.fg6 fg6 (19...Kg6 20.Rf6 Kf6 21.Rf1 Kg7 22.Rf7 Qf7 23.Nf7 Kf7 24.Bh5 Ke7 25.Qg5 Kd7 26.Be8 Re8 27.Qf5 Kc7 28.Qh7 Re7 29.Qg6+–; 19...hg6 20.Rf2 b6 21.Raf1+=) 20.Rf6 (20...Kf6 21.Rf1 Kg7 22.Rf7 Qf7 23.Nf7 Kf7 24.Na5=+). Fredek (2090) – AntoonWeef, Freundschaftspartie, 5m + 0s, 2005.

4.Nf3 Nc6 5.e3 Nf6 (5...Qc5 6.Nc3+=) 6.Be2 (6.c4 dc4 7.Bc4 Qc5+=) 6...e6= 7.Bf6 (7.0–0 Bc5 8.c4 0–0+=) 7...gf6 8.0–0 Bc5 9.d4 Be7 (9...Bb4 10.c3 Be7 11.c4=) 10.c4 dc4 11.Bc4 Rg8 (11...Bd7 12.Nbd2=) 12.Nbd2 Qh5 (12...Bd7 13.g3=) 13.Ne4 (13.Rb1 Kf8+=) 13...Qg6 (13...Bd7 14.Rc1+=) 14.Ng3 h5 (14...Bd7 15.Rb1 Rb8 16.d5 ed5 17.Bd5+/– (worse is 17.Qd5 Be6 18.Qb5 a6+/–)) 15.e4 White prepares d5 (15.Rb1 Kf8+/–) 15...Bd7 (15...Qh7 16.h4 Rg3 17.fg3 Qe4 18.Re1+=) 16.d5 (16.Rc1 Rd8+=) 16...Na5 (16...Ne5 17.Ne5 fe5 18.Qh5 Qh5 19.Nh5+=) 17.Bd3 (better is 17.Be2 Qh6 18.d6+/–) 17...0–0–0?? (better is 17...Qh6 18.Qc1 Qc1 19.Rac1 Rh8+=) 18.Qd2+– b6 (18...Nc6 19.dc6 Bc6 20.Rfc1+–) 19.Rfc1 (better is 19.d6 Bb5 20.Rac1 (20.de7?! Rd3 21.Rfc1 Kb7+–) 20...Kb8 21.Bb5 (21.de7?! Rd3 22.Qb4 Be8+–) 21...Bd6 22.Rfd1+–) 19...Kb8 20.Rab1 Nb7 (20...Ba3!? 21.Rc2 Ka8 22.e5+/–) 21.e5 f5 22.d6 Nd6?? (better is 22...Bf8 23.Qb4 f6+–) 23.ed6 Bd6 24.Qa5 Kb7 (24...Bc8 25.Nd4 Bb7 26.Nc6 Bc6 27.Rc6 Bc7 (27...Bg3?? 28.Rcb6 Kc8 29.Qc5 Bc7 30.Rb8 Kd7 31.Bb5) 28.Rc7 Kc7 29.Qa7 Kd6+–) 25.Rb6!! 1–0. Schulz – Sommer, corr DDR Cup, 1984.

4.Nf3 e6 5.e3+= Qc5 (5...Nf6 6.Bc3 Qc5 7.Bd4=) 6.Be2 (6.Ba3 Qc7+=) 6...Nc6 7.0–0 (7.Ba3 Qa5 8.Bf8 Kf8+=) 7...Bd7 (7...Qb6 8.Qc1+=) 8.Ba3 Qb6 (8...Qa5 9.Bf8 Kf8 10.c4+=) 9.Bf8+/– Kf8 10.d4 Nf6 11.Nbd2 Ke7 (11...Kg8 12.c4+/–) 12.Nb3 (12.c4 Qc7+/–) 12...Ne4 (12...Qc7 13.Nc5+=) 13.Bd3+/– Qc7 14.Be4 (14.c4 Rac8+/–) 14...de4 15.Ng5 f5 16.Nc5 (16.c4 h6 17.Nh3 Kd8+/–) 16...h6 17.Nh3 (worse is 17.Nd7 hg5 18.Ne5 Ne5 19.de5 Qe5–/+) 17...b6 18.Nd7 Qd7 19.Nf4 (19.c4 e5 20.d5 Na5=) 19...Rhd8 20.c4 (20.Qh5 Qe8 21.Qh3 Rac8+=) 20...g5= 21.Ne2 (21.Nh5 Na5 22.Rc1 Rdc8=) 21...Na5 (21...e5 22.Nc3 ed4 23.Nd5 Ke6 24.ed4=) 22.Rc1 White prepares the advance c5 (22.Qc1!?=) 22...Rac8+= 23.c5 (23.Ng3 Nc4 24.Qh5 Rh8+=) 23...bc5 24.Qe1 (24.Qd2 Qa4+=) 24...Nb7 25.dc5 (25.Qc3 cd4 26.Qa3 Ke8 27.ed4+=) 25...Rc5 (better is 25...Nc5!? 26.Qb4 Qd6–/+) 26.Rc5= Nc5 27.Qc3 Kd6?? (27...Nd3 28.Qg7 Ke8 29.Qh6+=) 28.Rd1?? (better is 28.Qd4 Kc6 29.Rc1 Qd4 30.Nd4 Kd7 31.Rc5+–) 28...Nd3= 29.Qa3 (29.Qf6 Qe7 30.Qh6 Ke5+=) 29...Ke5 30.Qc3 Kd5?? (30...Kd6 31.Qf6 Qe7 32.Qh6+=) 31.Qa5?? (31.Nc1 Qc8 32.Qd4 Kc6 33.Qa7=) 31...Kc6 (31...Kd6 32.Qb4 Kc7 33.Qa5 Kb8 34.Nd4+=) 32.Qa6 (32.Nd4 Kd6 33.Qa6 Kd5+/–) 32...Kc5 (32...Kd5 33.f3 Qc7 34.fe4 fe4 35.Qb5 Kd6 36.Nd4=) 33.Qa5 (better is 33.Nc1!? e5 34.Rd2+/–) 33...Kd6= 34.Qa3 Kd5 (34...Ke5 35.Qc3 Kd6 36.Qf6+=) 35.Qa5 (35.Nc1 Qd6 36.Qa5 Kc6 37.Nd3 Qd3 38.Qd8 Qd8 39.Rd8+–) 35...Kd6= 36.Qa3 Kd5 (better is 36...Ke5!?=) 37.Qa5 (37.Nc1 Qd6 38.Qa5 Kc6 39.Nd3 (39.Qa7?! Qc5 40.Qa4 Kc7=) 39...Qd3 40.Qd8 Qd8 41.Rd8+–) 37...Kd6= ½–½. Sandberg,Richard (1670) – Olsson,Eric, Hallstahammar op SWE, 1997.

3.bc5 b6

4.e3 bc5 5.Nc3 Ba6 =.

4.e3 bc5 5.Nf3 a6 6.c4+= e6 7.cd5 (7.Bd3 Nf6=) 7...ed5= (worse is 7...Qd5 8.Nc3 Qd8 9.Qa4 Bd7 10.Qc2+=) 8.Be2 Nf6 9.Bf6 (9.Qa4 Qd7 10.Qc2 Be7=) 9...Qf6 (worse is 9...gf6 10.0–0+=) 10.Nc3 White gets strong initiative 10...Be6 (10...Qe6 11.d4 c4 12.Rb1=) 11.0–0 Bd6 (11...Qf5 12.d4=) 12.Qa4 (12.Qb3 c4 13.Qb7+/–) 12...Nd7? (better is 12...Bd7 13.Bb5 Bb5 14.Nb5 0–0=) 13.Qc6+/– (13.Ba6 0–0 14.Qc6 Bf5+/–) 13...Bh2? (better is 13...Ke7+/–) 14.Kh2+– 0–0 15.Nd5 Qh6 (15...Bd5 16.Qd5 Rfd8 17.Rab1+–) 16.Kg1 Nf6 (16...Bd5 17.Qd5 (17.Qd7?! Rad8 18.Qf5 Bf3 19.Bf3 Rd2+–) 17...Rfd8 18.Rab1+–) 17.Ne7 Kh8 18.Rfc1 Ng4 (18...Rae8 19.Qc5 Ne4 20.Qb4+–) 19.Qc5 (19.Rc5 Qf6 20.Nd4 Qf2 21.Kh1 Qh4 22.Kg1 Qh2 23.Kf1 Qh1) 19...Rab8 (19...Rfb8 20.Qa3+–) 20.Ba6 Rb2 (20...Nf6+–) 21.Nf5 Qf6 22.Qf8 1–0. pcmvr (2110) – yknets (2355), net–chess.com, 2006.

4.e3 bc5 5.Nf3 Qb6 6.Be5 +=.

4.e3 bc5 5.Nf3 Bg4 6.Be2 Nf6 7.0–0 e6 8.Ne5 Be2 9.Qe2 Be7 10.Qb5 Nbd7 11.Nd7 Qd7 12.Qd7 Kd7 13.Be5 Rhg8 14.h3 Bd6 15.Bd6 Kd6 16.Nc3 Rab8 17.Rfb1 Kc6 18.a4 Nd7 19.f4 Rb4 20.Rb4 cb4 21.Nb5 a6 22.Nd4 Kd6 23.Rb1 1–0. hal1958 – blundermaster, playchess.de, 2002.

3.bc5 Nc6

4.d4 Qa5 5.c3 Bf5 6.e3 Nf6 7.Nd2 Ne4 8.Ngf3 Bg4 9.Qb3 Rb8 10.Ne4 de4 11.Ng5 f5 12.Qf7 Kd8 13.h3 h6 14.hg4 fg4 15.Qf5 g3 16.Nf7 (Unregistered player Black disconnected and forfeits 1–0). Machete99 – guest527, ICC, 2002.

4.d4 b6 5.Nf3 (5.cb6!? Qb6 6.Bc3+=) 5...bc5= 6.e3 Nf6 7.Nc3 cd4 8.Nd4 Qb6 (8...Bd7 9.Nc6 Bc6 10.Rb1=) 9.Rb1 (better is 9.Nc6 Qb2 10.Nb5+/–) 9...Ne4?? (better is 9...Nd4 10.ed4 Rb8=) 10.Nc6+– (10.Nd5?! Qa5 11.Nc3 Bd7+/–) 10...Nc3 (10...e6 11.Ne4 Qc6 12.Bg7 de4 13.Bh8+–) 11.Bc3 Qc7 (11...Qc5 12.Bd4 Qa3 13.Na7 Qa5 14.Qd2 Qd2 15.Kd2+–) 12.Bb5 (better is 12.Be5!? Bg4 13.Qg4 Qd7 14.Qd7 Kd7+–) 12...Bd7 13.Qd5 e6 14.Qf3 Rc8 15.Ba5 Qb7 16.Nd4 (better is 16.Ne5 Qf3 17.Bd7 Ke7 18.gf3 Rc2 19.a3+–) 16...Qf3 17.Bd7 Kd7 18.Nf3 (worse is 18.gf3 e5 19.Rb7 Ke8+–) 18...Rc2 19.0–0 Bd6 (19...e5 20.Rb7 Ke6 21.Ng5 Kf5 22.Nf7+–) 20.Rb7 Kc8 21.Ra7 Ra2 22.Ra8 (better is 22.Rb1!? h6+–) 22...Bb8 23.Rb1 Ra5 (23...Kd7 24.Kf1 e5+–) 24.Ra5 (better is 24.Rab8 Kd7 25.Rh8 h6+–) 24...Rd8 25.g3 (25.Ra8 Kc7+–) 25...Bc7 (25...h6 26.Nd4 Rd7 27.Nc6+–) 26.Ra8 Kd7 27.Rd8 Bd8 28.Rb7 (28.Rb7 Kd6 29.Rf7+–) 1–0. Dewindt,Cor – Milner,Din, Canadian op, 2005.

4.d4 e5 5.e3 +=.

4.d4 e5 5.de5 Bc5 6.e3 d4 7.ed4 Bd4 8.Bd4 Nd4 9.c3 Nc6 10.Qd8 Nd8 11.Bb5 Bd7 12.Bd7 Kd7 13.Nf3 Nc6 14.Na3 Re8 15.Nb5 Ne5 16.0–0–0 Kc6 17.Nd6 (17...Nh6 18.Ne8 Re8 19.Rhe1+–; 17.Na7?! Kc5 18.Rhe1 f6 19.Ne5 fe5+/–) 1–0. SSEChessII (2275) – Astra (1915), ICS game chess.net, 1998.

4.d4 e5 5.de5 Bc5 6.e3 Be6 7.Nf3 Qb6 8.Bc3 0–0–0 (8...Rd8!?+/–) 9.Bd3 f6 10.0–0 Bg4 11.ef6 Nf6 12.h3 Bh5 13.Bf5 Kb8 14.Nbd2 (better is 14.Bf6 gf6 15.Nbd2=) 14...g6?? (better is 14...Ne4 15.Rb1 Nc3 16.Rb6 Nd1 17.Rc6 bc6 18.Rd1 g6–/+) 15.Bf6 gf5 16.Rb1 Qc7 17.Nb3 Bd6 18.Bh8 Rh8 19.Qd5 Rg8 (19...Ne7 20.Qa5 Bf3 21.Qc7 Bc7 22.gf3 Rd8+–) 1–0. marekt – guest847, ICC, 2003.

4.d4 e5 5.de5 Bc5 6.e3 Qg5 7.Nf3 Qe7 (7...Qd8 8.Nbd2+/–) 8.Bb5 (8.Nc3 Bb4+–) 8...Bd7 (8...a6 9.Ba4+/–) 9.Nc3 Ne5? (better is 9...Be6+–) 10.Bd7 Nd7 11.Nd5 Bb4 (11...Qd6 12.Bg7 Ne7 13.Ne7 Ke7 14.Bh8 Qd1 15.Rd1 Rh8+–) 12.c3 Bc3 (12...Qd6 13.cb4 Kf8 14.0–0+–) 13.Bc3 Qa3 (13...Qc5 14.Bg7 Ne7 15.Ne7 Qa5 16.Nd2 Ke7 17.Bh8 Rh8 18.0–0+–) 14.Bb4 Qb2 15.Rb1 Qa2 16.Nc7 Kd8 17.Na8 Ne7 (17...Ngf6 18.0–0 Qd5 19.Qa4+–) 18.Ne5 Qe6 19.Be7 Ke7 20.Rb7 Qe5 21.Qd7 Kf6 22.Qf7 Kg5 23.f4 (23...Kh4 24.fe5 Rc8 25.Rb4 Rc4 26.Qf5 Rb4 27.g3#) 1–0. orane (1780) – Catfish, Tour O–982, 2004.

4.d4 Nf6 5.e3 b6 6.c4 dc4 7.Qa4 +=.

4.d4 Nf6 5.e3 b6 6.c4 dc4 7.Qf3 =.

4.d4 Nf6 5.e3 Bf5 6.Nf3 e6 7.Bd3 Bd3 8.cd3 Be7 9.Nc3 0–0 10.0–0 Nd7 11.e4 de4 (11...Bf6 12.e5 Be7 13.Rc1+=) 12.de4 f5 (12...e5!? 13.d5 Na5+/–) 13.Qb3+– Rf6 14.ef5 Nf8 (14...Na5 15.Qb5 Rf5 16.Rae1+–) 15.Qb7 Qc8? (15...Qe8 16.d5 ed5+–) 16.Qc8 Rc8 17.fe6 Re6 (17...Rf3 18.gf3 Nd4 19.Nd5 Nf3 20.Kg2 Nh4 21.Kh3+–) 18.d5 Bc5 (18...Rh6 19.Ne4 Nb4 20.d6+–) 19.de6 Ne6 20.Ne4 Be7 21.Rac1 Rc7 22.Rfd1 Kf7 (22...a5+–) 23.Rc6! Rc6 24.Ne5 (24.Ne5 Ke8 25.Nc6+–) 1–0. pierre – demjan, internet, 2010.

4.d4 Nf6 5.e3 g6 6.Nd2 (6.c4 Bg4 7.f3 Bd7+/–) 6...Bg7 7.f4 (7.c4 0–0+/–) 7...Ng4+= 8.Qf3 Nb4 (8...Nf6 9.Bd3+=) 9.Bd3 b6 (9...Qa5 10.e4+=) 10.Nb3 (10.Rb1 Rb8 11.h3 Nh6=) 10...Nd3 (10...bc5 11.Nc5 Nd3 12.cd3 Qa5 13.Kd1=) 11.cd3+= bc5 12.h3 Nh6 13.Nc5 (13.Ne2 cd4 14.Ned4 0–0+=) 13...Qa5 14.Kf2 e6 (14...Rb8!? 15.Nb3 Qc7+=) 15.Ne2+/– Nf5 16.g4 (16.Rhc1 Rb8 17.Bc3 Qa3+/–) 16...Nd6 (16...Nh4 17.Qg3 Rb8 18.Bc3+/– (18.Qh4?! Rb2 19.a4 Qb4+=)) 17.a4 (17.Bc3 Qd8+/–) 17...0–0 (17...Nb7 18.Bc3 Qb6 19.Rhc1+/–) 18.Ba3 Rd8 (18...Ba6 19.Rhb1 Rfb8 20.Kg1+/–) 19.Nc1 (19.Rab1 Bd7+/–) 19...Rb8 (19...Qc7 20.Rb1+/–) 20.N1b3 Rb3? (better is 20...Qc7!?+/–) 21.Nb3+– Qa4 22.Rhb1 Qc6 23.Bd6 Rd6 24.Rc1 (24.g5 a6+–) 24...Qa8 (24...Qb7 25.Nc5 Qe7 26.Ke1+–) 25.Qd1 (25.Nc5 Rb6+–) 25...Bf8 (25...a6 26.Ke1+–) 26.Qc2 (26.Nc5 Rc6+–) 26...Bb7 (26...Bd7 27.Kg1+–) 27.Qc7 White gets the initiative 27...Rd8 (27...Ba6 28.Nc5 Rc6 29.Qd7 (29.Na6?! Rc7 30.Rc7 Bd6+/–) 29...Bc5 30.Ra6+– (30.dc5?! Kg7+–)) 28.Nc5 (28.Na5 Ba6 29.Nc6 Rc8+–) 28...Bc5 29.dc5 Rc8 30.Qa5 a6 31.d4 Kf8 (31...Rc6 32.Rcb1 Qc8 33.g5+–) 32.Rab1 (32.Rcb1 Rc6+–) 32...Bc6 33.Rb6 Qa7 (33...Bb5 34.Ke1+–) 34.Ra6 (34.Ra6 Qb7 35.Qb6+–) 1–0. Kleinke,Uwe – Mueller,Matthias, corr DDR–ch I726, 1979.

4.e3 Qa5!? =.

4.e3 d4 5.ed4+/– Nd4 6.Nf3 Nc6 7.Be2 (7.Bb5 Bg4+/–) 7...Bf5 8.0–0 e6 9.d4 Nf6 10.Bd3 Bg4 11.Be2 Be7 (11...Bf5!?=) 12.Nbd2 0–0 13.c3 b6 14.cb6 Qb6 15.Rb1 Qa5 16.Ra1 Rab8 (16...Qb6 17.Nc4 Qc7 18.Rb1+=) 17.Qc2 Nd5 (17...Bf5 18.Qc1+=) 18.Rfb1 (18.Bd3 h6+/–) 18...Bd6 (18...Bf5 19.Bd3 Ncb4 20.cb4 Nb4 21.Qc3 Bd3 22.a3 Bb1 23.Rb1–+) 19.h3 (better is 19.Nc4!? Qc7 20.Nd6 Qd6 21.Ng5+/–) 19...Bf5= 20.Bd3 Bd3 (20...Ncb4!? 21.cb4 Nb4=) 21.Qd3+= Nf4 22.Qe4 Qc7 23.Nc4 (23.c4 Rfd8+=) 23...Be7 (better is 23...Nd4!? 24.Nd6 Nf3 25.Qf3 Qd6=) 24.Nce5+/– Nd5 25.Qe1 (25.c4!? Ne5 26.Ne5+/– (26.cd5?! Nf3 27.Qf3 Qc2=)) 25...Na5 26.Qd2 Nc4 (26...Rfc8!?=) 27.Nc4+/– Qc4 28.Ne5 Qc7 29.c4 Nf6 30.c5 Nd5 31.Bc3 Bf6 32.Nf3 (32.Ba5 Rb1 33.Rb1 Qe7+/–) 32...h6 33.Ba5 Qc6 34.Rb3 Qa4 35.Rab1 Rb3 36.ab3 Qb5 37.b4 Rb8 38.Ne5 Be5 39.de5 a6 40.Rc1 Qc6 41.Bb6 (better is 41.Qd4!?+/–) 41...Nb6= 42.cb6 Qb6 43.Rb1 (better is 43.Rc4!?+=) 43...a5 0–1. Fournier,Frederic (1620) – rocando (1650), Active, 2007.

4.Nf3 Qa5 5.e3 =.

4.Nf3 e6 5.e3 Bc5?? (better is 5...Qa5+=) 6.Bg7+– Be7 7.Bh8 Bf6 8.Bf6 Qf6 9.Nc3 Bd7 10.Be2 0–0–0 11.d4 e5 (11...Nh6 12.Bd3+–) 12.de5 Ne5 13.Ne5 (better is 13.Nd5!? Qf5+–) 13...Qe5 14.Qd2 Nf6 15.0–0 Ne4 16.Ne4 Qe4 (16...de4 17.Rfd1 b6 18.a4+–) 17.Bf3 Qg6 18.Qd5 Bc6 19.Qc4 Rg8 20.g3 h5 (20...Qe6 21.Qe6 fe6 22.Bc6 bc6 23.f4+–) 21.Bc6 bc6 (21...Qc6 22.Qf7 Qg6 23.Qg6 Rg6+–) 22.Rfd1 f5 23.Rab1 Rh8 (23...Qg3 24.hg3 Rg3 25.fg3 Kc7 26.Qf4 Kc8 27.Rb8) 24.Qa6 Kc7 25.Qb7 1–0. Fournier,Frederic (1815) – joav (1760), Active, 2004.

4.Nf3 Nf6 5.e3 Bg4 (5...Qa5 6.Bf6 gf6 7.c4 dc4 8.Bc4+=) 6.Be2 (6.Bf6 gf6 7.h3 Bf5+/–) 6...Bf3 7.Bf3 e5 8.0–0 (better is 8.d4!? e4 9.Be2+=) 8...Bc5= 9.d3 e4 10.de4 de4 11.Qd8 Nd8 12.Bf6 ef3 13.Bg7 (13.Bb2!?+=) 13...Rg8–/+ 14.Bd4 Bd4 15.ed4 Rg2 16.Kh1 Ne6 (16...Rc8 17.c3 Ne6 18.a3–/+) 17.c3? (17.Nd2 Nd4 18.Nf3=) 17...0–0–0?? (better is 17...Rc8–/+) 18.Nd2+= Ng5 (better is 18...Rdg8 19.Nf3 Nf4+=) 19.Rg1?? (19.Nf3 Rg4 20.Ng5 Rg5+/–) 19...Re8?? (better is 19...Rf2 20.Rad1 Rd5+=) 20.Rg2+/– fg2 21.Kg2 Re2 22.Nf3 (better is 22.Rd1+/–) 22...Ne4= 23.Rf1 Ra2 (23...Nc3? 24.Rc1 Ra2 25.Rc3 Kd7 26.Rc5+–) 24.c4 Kc7 25.c5 f5 26.Ne5 b6 27.cb6 ab6 28.Kf3?? (28.Nc4 Kb7+=) 28...b5?? (better is 28...Nd2 29.Kg2 Nf1 30.Kf1 b5–+) 29.Kf4+= Rf2 30.Rf2 Nf2 31.Kf5 b4 32.Nc4 b3 33.Nb2 (better is 33.d5!?+=) 33...Kd6–+ 34.Kf4 Kd5 35.Ke3 Ng4 36.Kd3 Nh2 37.Kc3 Nf3 38.Kb3 Kd4 39.Kc2 Ke3 40.Kd1? (better is 40.Nd1 Kf4 41.Kd3–+) 40...h5 41.Nc4 Kf2 42.Nd6 h4 43.Ne4 Ke3 (better is 43...Kg2–+) 44.Nf6 h3 45.Ng4 Kf4 46.Nf2 h2 47.Nh1 Ke3 48.Ng3 White threatens to counter with Nd2 48...Kf2 49.Nh1 Kg2 (better is 49...Kf1 50.Kc2 Kg2 51.Kd3 Kh1 52.Kc4–+) 50.Ke2 Ng1 51.Ke1 Kh1 (51...Nh3 52.Ke2 Kh1 53.Kf1–+) 52.Kf1 (52.Kf2 Nh3 53.Kf1–+) 52...Nh3 53.Ke1 Kg2 0–1. Fournier,Frederic (1830) – rocolampone (1875), Active, 2005.

4.e3 e5

5.Bb5 Bd7 6.Bc6+/– Bc6 (6...bc6 7.Be5 Qa5 8.Bd4+/–) 7.Be5 f6 (7...d4!? 8.Nf3 de3 9.fe3 Nf6+/–) 8.Bd4+– Qa5 9.Nf3 Bc5 10.Bc5 Qc5 11.0–0 Ne7 12.Nc3 0–0 13.Nd4 Qd6 14.Qh5 g6 (14...Rae8 15.Rfb1+/–) 15.Qf3+– Rae8 16.a4 f5 17.Nc6 (17.Ncb5 Bb5 18.ab5 a6+–) 17...bc6+/– 18.Ne2 c5 19.c3 Nc6 (19...Rb8 20.d3+/–) 20.d4 c4 21.Nf4 Re4 (21...Ne7 22.Rab1+/–) 22.Rfb1+– g5 (22...Ne7 23.Rb7+/–) 23.Nh5 (better is 23.Qg3!? h6 24.Rb5+–) 23...Rh4 24.g3 Re4 25.Rb7 Rf7?? (better is 25...g4 26.Qg2 Rf7+/–) 26.Rf7+– Kf7 27.Qf5 Ke7 (27...Ke8 28.Nf6 Kd8 29.Ne4 de4 30.Qg5 Ne7 31.Rb1+–) 28.Qg5 (28.Qg5 Ke8 29.Nf6 Kf7 30.Ne4 de4 31.Qf5 Kg8 32.Qe4+–) 1–0. katchum (2080) – chessforces (1730), net–chess.com, 2003.

5.Bb5 e4 6.Qh5 +=.

5.d4 ed4 6.ed4 Nge7 +=.

5.d4 ed4 6.ed4 Nf6 7.Bd3 +=.

5.d4 e4 6.c4+/– Nf6 (6...Be6 7.Nc3 Nf6 8.cd5 Bd5 9.Nh3+/–) 7.cd5 Nd5 8.Nc3 Qa5 (8...Nc3 9.Bc3 Be6 10.Ne2+/–) 9.Qb3+– Nce7 (better is 9...Qb4!? 10.Rd1 Bf5+–) 10.Bc4 Ng6?? (10...Qb4 11.Qb4 Nb4 12.Ne4 Ng6+–) 11.Bd5 Be6 (11...f5 12.Bb7 Bb7 13.Qb7+–) 12.Be6 fe6 13.Qb7 Rd8 14.Qc6 (14.Nge2 Be7+–) 14...Kf7 15.Nge2 Be7 (15...e5 16.0–0+–) 16.0–0 Rc8 (16...Rb8 17.Rab1+–) 17.Qe4 Qc7 (17...Rhe8 18.f4+–) 18.f4 Rhf8 (18...Nh4 19.g3 Rb8 20.Rab1+–) 19.d5 (19.d5 Kg8 20.d6 Qc5 21.Qe6 Kh8 22.de7 Ne7 23.Na4+–) 1–0. marekt – bayonett_attack_1, ChessWorld.net, 2003.

5.Nf3 Bc5 6.Ne5 Nf6 7.Nd3 +=.

5.Nf3 d4 6.ed4 ed4 7.Bb5 Bc5 8.0–0 (8.Qe2!? Nge7 9.Bc6 bc6 10.Qe5+=) 8...Nge7= 9.Bc6 bc6 10.Re1 0–0 (10...Rb8 11.Qc1+=) 11.Qe2= Ng6 (better is 11...Nf5!?=) 12.Qc4+= Qb6 (12...Bb6 13.Nd4 Qf6 14.Qc3+=) 13.Bd4+/– Be6?? (13...Bd4 14.Qd4 Rd8+/–) 14.Bc5 (better is 14.Qc5 Qc5 15.Bc5+–) 14...Qb2?? (better is 14...Bc4 15.Bb6 ab6+=) 15.Qd4+– (15.Qd4 Rfb8 16.Na3+–) 1–0. Fournier,Frederic (1820) – aenima, Active, 2011.

5.Nf3 e4 6.Nd4 Bc5?? 7.Nc6+– bc6 8.Bg7 1–0. Fournier,Frederic (1995) – RIZKO (1975), Echecs21, 2003.

5.Nf3 Bg4 6.Be2 (6.h3 Bf3 7.Qf3 Bc5+=) 6...Bc5 (6...Bf3 7.Bf3 Bc5 8.c4=) 7.0–0 (7.Ne5 Be2 8.Qe2 Nf6+/–) 7...Nf6 (better is 7...Bf3 8.Bf3 Nf6=) 8.Ng5?? (better is 8.Ne5 Bf5 9.Bd3+/–) 8...Be2+= 9.Qe2 0–0 (9...Qb6 10.Ba3+=) 10.Nf3 (10.Nc3 h6 11.Nf3 Qd7+=) 10...e4 11.Nd4 (11.Nh4 g6+=) 11...Re8 (11...Bd4 12.Bd4 Nd4 13.ed4–/+) 12.Nc6 bc6 13.Nc3 Bd6 (better is 13...Qa5+=) 14.a4 (14.Na4 Nd7+=) 14...Re6 (14...Qb8 15.Rfb1 Bh2 16.Kf1–+) 15.a5 (15.Ba3 Ba3 16.Ra3 Rb8+=) 15...h5 (15...Qb8 16.Rfb1 Bh2 17.Kh1–+) 16.a6 (better is 16.Ba3!?+=) 16...Bh2!–/+ 17.Kh1? (17.Kh2 Qb8 Double attack) 17...Ng4–+ 18.f3 (18.g3–+) 18...Qh4 (18...Bg3 19.Kg1 Qh4 20.Rfb1 Qh2 21.Kf1 Qh1) 19.Qe1 (19.g3 Bg3 20.Kg1 Bh2 21.Kh1 Rg6 22.Qg2 Be5 23.Kg1 Ne3 24.de3 Rg2 25.Kg2 Qh2) 19...Bg3 20.Kg1 Qh2 0–1. Nautiluschess – Pauper, ICS blitz, 2000.

3.bc5 d4

4.c3 e5 5.cd4 ed4 6.Qc2 +=.

4.e3 de3!? 5.fe3 Qa5 +=.

4.e3 e5 5.ed4+/– ed4 6.Bc4 (6.Bb5 Nc6 7.Qe2 Nge7+/–) 6...Nf6 (6...Qe7 7.Qe2 Nc6 8.c3 Qe2 9.Ne2 Bc5 10.cd4+/–) 7.Qe2 Be7 8.Nf3 Exerts pressure on the isolated pawn 8...Nc6 9.Bb5 0–0 10.Bc6 bc6 11.Bd4 (11.Nd4 Bc5 12.Nc6 Qb6 13.Bf6 Qc6–+) 11...Bf5 (11...Re8 12.0–0+=) 12.Qc4 (12.0–0 Bg4 13.Be3 Re8+/–) 12...Be4+= 13.Nc3 Bf3 14.gf3 Re8 15.Kf1 (15.0–0–0 Rb8+/–) 15...Qd7+= 16.Rg1 Qh3 (16...Rad8 17.Ne2+=) 17.Rg2 Bd8 (17...Qf3 18.Re1+=) 18.Kg1 (18.Ne4 Nh5 19.Kg1 Qf3+/–) 18...Qh4 (18...Qf3!? 19.Qd3 Qd3 20.cd3 Be7+=) 19.Ne4!+– Qf4 (19...Ne4 20.Rg4 Double attack (20.Bg7 Pinning; 20.Bg7 Deflection; 20.Rg4 Decoy)) 20.Nd6 Re6 21.Qd3 (21.Nf7 Kf7 22.Re1 Qd4 23.Qe6 Kf8 24.Qc6 Rb8+/–) 21...Be7 (21...Bc7 22.Nf5 Nh5 23.Be3 (23.Bg7?! Rg6 24.Ne7 Kg7 25.Ng6 hg6=) 23...Qf3 24.Nh6 Rh6 25.Bh6+/–) 22.Nf5 Bf8 23.Be3 Qc7 24.c4 (24.Rb1 Kh8+/–) 24...Nh5 (24...Rae8 25.Kh1+/–) 25.Rg4 (25.Qc2 Rae8+/–) 25...Rg6 (25...Rd8 26.Qf1+/–) 26.Rg6 (26.Re1 Nf6 27.Rg3 Qa5+/–) 26...hg6 (26...fg6 27.Ng3+/–) 27.Ng3 Nf4 (27...Qe5 28.Rb1 Bc5 29.Qe4+/–) 28.Bf4 (better is 28.Qe4!? Ne6 29.d4+–) 28...Qf4+= 29.Re1 (29.Qd7 Qc4 30.Qc6 Rd8+/–) 29...Bc5 30.Re4 (30.Ne4 Bb6=) 30...Qf6 (30...Qc7 31.Qc3=) 31.Qd7+= Qf3 32.Qc6?? (better is 32.d4 Rb8 33.Re8 (33.Qc6?? Rb1 34.Nf1 Bf8–+) 33...Re8 34.Qe8 Bf8 35.Qe4 Qe4 36.Ne4+=) 32...Qf2 (32...Qf2 33.Kh1 Qg1#) 0–1. Diviak,Ru (1850) – Marusak,P (2035), Tatranske Zruby SVK, Tatry Open, 2012.

4.Nf3 (--> 1.b4 d5 2.Bb2 d4 3.Nf3 c5 4.bc5).

3.bc5 e6

4.a3 Nc6 5.Nf3 Bc5 6.Bg7 1–0. guest95 – guest394, ICS blitz, 2000.

4.d4 Nc6 5.e3 Nf6 6.Nf3 b6 7.cb6 ab6 (7...Qb6 8.Bc3+=) 8.Bb5+/– Bd7 9.a4 Bb4 10.c3 Ba5 11.Nbd2 0–0 12.0–0 Na7 13.Bd7 Qd7 14.Nb3 Nc6 15.Na5 Ra5 16.Qb3 Qc7 (16...Raa8 17.Rfb1+= (17.Qb6? Rfb8 18.Qc5 Rb2–+)) 17.Rfc1 (17.c4 dc4 18.Qc4 Rc8+/–) 17...Rc8 (better is 17...Ra7!?=) 18.c4+/– dc4 19.Rc4 Rh5?? (19...Qb7!?+–) 20.h3 (20.Rac1 Nd7 21.Qc3 Ndb8+–) 20...Ne4? (20...Nd7+–) 21.Rac1 Qb7 22.Qb5 (better is 22.Qc2 Nc5 23.dc5 bc5 24.Qc3+–) 22...Rb5–+ 23.ab5 Ne7 24.Ne5 Rc4 (24...Nd6 25.Rc8 Nec8 26.f3–+) 25.Rc4 (25.Nc4 Nf5 26.Ba3 h5–+) 25...h6 (25...Nd6 26.Rc1–+) 26.Nc6 Nc6 (26...Nd5 27.Rc1–+) 27.Rc6 (27.bc6 Qc7–+) 27...Qa7 28.Bc1 (28.f3 Nf6–+) 28...Qa1 (28...Qa2 29.Rc8 Kh7 30.Kh2 Qf2 31.Rf8–+) 29.Kh2 (29.Rc2 Qa4 30.Rc8 Kh7–+) 29...g5 (29...Nc3 30.Bd2 Ne2 31.Bc1–+) 30.f3 (30.Rc2 Nf2! 31.Kg3 Ne4 32.Kh2 Qa4–+) 30...Nf2 (30...Nc3!? 31.Bd2 Ne2 32.Rc8 Kh7 33.Bc1–+) 31.Kg3 (31.Rc8 Kg7–+) 31...Nd3 32.Bd2 Qb2 33.Bc3 Qf2 34.Kg4 (34.Kh2 Nc1 35.Rc8 Kh7 36.Ra8–+) 34...f5 (34...Qh4) 35.Kh5–+ Qh4 (better is 35...Kf7 36.Rc7 Ke8 37.Kh6 Qg2–+) 36.Kg6–/+ Kf8 37.Kf6? (better is 37.d5!? e5 38.Rb6–/+) 37...g4–+ 38.Kg6?? (38.Ke6 Qe7 39.Kf5 gh3 40.gh3 Qe3 41.h4–+) 38...gf3 (38...Qg5 39.Kh7 Qg7) 39.gf3 (39.Rc8 Ke7 40.gf3 Qg3 41.Kh7 Qf3 42.d5 ed5 43.Bd4–+) 39...Qg5 40.Kh7 Qe7 (40...Qg7) 41.Kg6 (41.Kh6 Nf2 42.Rc8 Kf7 43.Kh5–+) 41...Qf7 (41...Qg7 42.Kh5 Qg5) 42.Kh6–+ Qg7 43.Kh5 Nf2 (better is 43...Qg3 44.Re6 Kf7 45.Rb6 Qf3 46.Kh4 Nf2 47.Rb7 Qb7–+) 44.Rc8+– Kf7 45.Rc7 Kf6 (45...Kf8 46.Rg7 Kg7 47.d5 Kf7 48.de6 Ke6 49.h4+–) 46.Rg7 (better is 46.d5 e5 47.Rg7 Kg7 48.Be5 Kf7+–) 46...Kg7 47.Kh4 Nd1 48.Bb4 (better is 48.Ba5!+–) 48...Ne3+/– 49.Bd6 Nc2 50.Be5 (50.Kg5 Kf7 51.Be5 Ne1+–) 50...Kf7 (50...Kg6!?+/–) 51.Kg5+– Na3 (51...Ne1 52.f4 Nf3 53.Kh6 Nd2+–) 52.h4 Nb5? (52...Nb1+–) 53.h5 Kg8 (53...Na3 54.h6 Nc4+–) 54.h6 (better is 54.Kg6 Kf8 55.h6+–) 54...Kh7 55.Bg7 (55.Kf6 Kh6 56.Ke6 Na3+–) 55...Nd6? (better is 55...Nc7 56.Kf6 b5+–) 56.Kf6+– b5 57.Ke6 b4 (57...Nc4+–) 58.Kd6 b3 59.d5 b2 60.Bb2 Kh6 61.Ke6 Kg6 62.d6 f4 63.d7 Kg5 64.d8Q Kh5 (64...Kg6 65.Qg8 Kh6 66.Kf5 Kh5 67.Qg5) 65.Be5 (65.Kf5 Kh6 66.Qh4) 65...Kh6 (65...Kg6 66.Qg8 Kh6 67.Bf4 Kh5 68.Qg5) 66.Bf4 (66.Kf5 Kh5 67.Qg5) 66...Kg7 (66...Kh7 67.Qe7 Kg8 68.Qf7 Kh8 69.Be5) 67.Qf6 Kg8 68.Ke7 (68.Qf7 Kh8 69.Be5) 68...Kh7 69.Qg5 (69.Qf7 Kh8 70.Be5) 69...Kh8 70.Be5 Kh7 71.Qg7 1–0. Fournier,Frederic (1850) – peoncete2 (1895), Active, 2008.

4.e3 (--> 1.b4 d5 2.Bb2 e6 3.e3 c5 4.bc5).

4.Nf3 Bc5?? 5.Bg7+– Nc6 (5...Nf6 6.Bh8 Ne4 7.e3+–) 6.Bh8 Qb6 (6...Ke7 7.d4 Bd6 8.Qd3+–) 7.e3 Nh6 (7...Qd8 8.Nc3+–) 8.Nc3 Nf5 (8...Qd8 9.Bd3+–) 9.Bb5 (9.g4 Nd6+–) 9...Bd7 (9...Ke7 10.Bc6 Qc6 11.g4+–) 10.Bc6 (10.Rb1!? Qc7+–) 10...Bc6 11.Ne5 (11.Rb1 Qa6+–) 11...0–0–0 (11...d4 12.ed4 Bd4 13.0–0+–) 12.Nc6 (12.Bf6 Rf8 13.Rb1 Qc7+–) 12...bc6 (12...Qc6 13.Bf6 Rg8 14.Qh5+–) 13.Rb1 Qc7 14.Na4 (14.Bf6 Rg8 15.g4 Rg6+–) 14...Bd6 (14...Be3 15.Bf6 Bf2 16.Kf2 Qf4 17.Qf3 Qa4 18.Rb3+–) 15.Bf6 Rg8 16.Qe2 (16.g4 Be7 17.Be7 Ne7+–) 16...Kd7 (16...Qa5 17.g4 Ne3 18.fe3 Qa4+–) 17.d4 (better is 17.g4 Ne7+–) 17...Rg2 (17...Qa5 18.c3 Qa4+–) 18.Nc5 (better is 18.Qa6 Rg6 19.Rb7 Rf6 20.Rc7 Kc7 21.Qa7 Kd8+–) 18...Bc5 19.dc5 Qa5 (19...Rg8 20.Qa6 Rb8 21.Rb8 Qb8 22.Rg1 Qb4 23.Kd1+–) 20.Kf1 (better is 20.Kd1 Qa4+–) 20...Rg6 21.Bd4 (better is 21.Bh8 Qc5 22.Rb7 Ke8+–) 21...Qa2 (21...Nd4 22.ed4 Qa2 23.Qd1+–) 22.Rb7 (better is 22.Ra1 Nd4 23.Ra2 Ne2 24.Ra7 Ke8 25.Ke2 Kf8+–) 22...Kc8 23.Rf7 (better is 23.Rb4 Nd4 24.Rd4+–) 23...Nd4 24.ed4 Qa1 25.Qe1 Qd4?? (25...Qa6 26.c4 Qc4 27.Qe2 Qc1 28.Qe1 Qc4 29.Qe2 Qc1 30.Qe1 Qc4=) 26.Qa5 (better is 26.Qb1 Qc4 27.Ke1+–) 26...Qd1= 27.Qe1 Qe1?? (27...Qd4 28.Qb1 Qc4 29.Ke1 Qa6 30.Qb2 Qa5 31.Kd1 Qc7 32.Rc7 Kc7 33.Qe5 Kd7 34.Kd2 Rg5 35.Qd6 Ke8 36.Qe6 Kf8 37.Qf6 Ke8 38.Re1 Re5 39.Re5 Kd7 40.Qf8 Kc7 41.Re7) 28.Ke1+– a5 (28...Rg5 29.Ke2 e5 30.Ra1+–) 29.Ke2 h5 (29...Rg4 30.Ra1 Kb8 31.Rb1 Ka8 32.Rb6+–) 30.Ra1 Kd8 (30...Rg8+–) 31.Ra5 Ke8 32.Rb7 Rg7 (32...Rg2 33.Ra8) 33.Ra8 1–0. Nautiluschess – Mabel, internet, 2001.

4.Nf3 Nf6 5.e3 (5.d4 b6+=) 5...Bc5= 6.c4 Nc6 7.Nc3 d4 8.ed4 Nd4 9.d3 (9.Na4 Nf3 10.Qf3 Bd4+=) 9...Nc6 10.Be2 Bf2 11.Kf2 Ng4?? (better is 11...Qb6 12.d4 Qb2+=) 12.Ke1+– Qb6 13.Rb1 Nf2 14.Qc2?? (better is 14.c5 Qc5 15.d4 Nd1 16.dc5 Nb2 17.Rb2+–) 14...Nh1+= 15.Bf1? (15.Ne4 Qb4 16.Kf1+=) 15...Nb4 (15...f6 16.Qd2 e5 17.g3–/+) 16.Qd2 Qd4?? (better is 16...0–0–+) 17.Nd4+– Nd5 1–0. Fournier,Frederic (1985) – rengo18 (1710), Echecs21, 2003.

3.bc5 Nf6

4.d4 Nc6 5.Nf3 Qc7 6.e3 e5 7.de5 Ne4 8.Bd3 Nc5 9.0–0 Bg4 10.Qd2 (better is 10.Nc3!?+/–) 10...Bf3 11.gf3 Be7 12.e6 (better is 12.Be2+=) 12...fe6–/+ 13.Kh1 Bf6 14.Bf6 gf6 15.Nc3 Ne5 16.Qe2? (16.Be2 Rg8=+) 16...0–0–0 (16...Ncd3!? 17.Nb5 Qd7 18.f4 Qb5 19.fe5 Nf2 20.Qf2–/+) 17.Rg1 h5 (17...Ncd3?! 18.cd3 Kb8 19.Nb5=) 18.f4 Ng4 19.f3?? (19.Nb5 Qa5 20.Rab1 Kb8= (20...Qa2 21.Ra1 Qb2 22.Rgb1 Nd3 23.Rb2 Nb2 24.Na7 Kc7 25.Nb5 Kd7 26.Na3+–; < 20...Nd3 21.cd3 Kb8 22.h3+/–)) 19...Nh6?? (better is 19...Ne3 20.Qe3 d4–/+) 20.a4 e5 21.Nb5 Qb6 (21...Qa5 22.Rg7 Kb8 23.Rb1=+) 22.c4 (22.a5!? Qe6 23.fe5 fe5 24.Na7 Kb8 25.Nb5+/–) 22...dc4 23.Bc4 ef4 24.e4 (24.ef4?! Kb8=) 24...Rhe8? (24...Kb8 25.a5 Qc6 26.Bd5 Rd5 27.ed5 Qd5 28.Rad1+/–) 25.Rac1?? (25.a5 Qa6 26.Nc7 Qc6 27.Ne8 Qe8+–) 25...Nf5?? (better is 25...a6 26.Rg6 Nf5+=) 26.Qa2 Ne3 27.Bd5 (better is 27.a5 Qa6 28.Be2+–) 27...Nd5 28.ed5 Kb8 29.d6 (better is 29.Qc4 Nd7 30.Rg7+=) 29...Nd3 30.Rc7 (better is 30.Rcf1 a6 31.Qc2–/+) 30...Rd6?? (30...a6 31.Qd5 Nf2 32.Kg2 ab5 33.a5 Rg8 34.Kf1–+) 31.Rgg7?? (31.Nd6 Qd6 32.Qf7 Qc7 33.Qe8 Qc8 34.Qe7 (34.Qh5?! Nf2 35.Kg2 Nd1 36.Rd1 Qc2 37.Kh3 Qd1=) 34...Nf2 35.Kg2+–) 31...Nf2?? (31...Re1 32.Kg2 Rg1 33.Kh3 Rg7 34.Rg7 Rd8=) 32.Kg2+– f5 (32...Rdd8 33.Qf7 Ka8 34.Rb7 Ng4 35.Ra7 Kb8 36.Qb7 Qb7 37.Rab7 Ka8 38.Ra7 Kb8 39.fg4 hg4 40.Rg4 Re2 41.Kf3 Rh2+–) 33.Nd6 Qd6 34.Rb7 Kc8 35.Rgc7! Kd8 36.Rd7! Qd7 (37.Rd7 Kd7 38.Qf7 Kd8 39.Kf2 a6+–) +–. chevin – winsome, Live Game Caissa's Web, 2004.

4.Nf3 Qa5 5.e3 +=.

4.Nf3 h6 5.e3 Nc6 6.Bb5 a6 7.Ba4 b5? (better is 7...Qa5!? 8.Bc6 bc6+=) 8.cb6!+– Qb6 9.Qc1 (9.Bd4 Qc7 10.Be5+–) 9...e5? (better is 9...Bd7!?+/–) 10.Ne5+– Bb7 11.Nc6 Bc6 12.Bc6 Qc6 13.Nc3 (13.0–0 Be7+–) 13...Bd6? (13...d4 14.Ne2 Qg2 15.Rg1 Qh2 16.Bd4+=) 14.Ba3 (14.Ne2 Bc5+–) 14...0–0 (14...Be5!?+=) 15.Bd6 Qd6 16.0–0 Ng4 17.g3 h5 18.f4 (18.Qd1 Rab8+–) 18...Nf6 19.a4 h4 20.Qa3 Qe6 21.Kg2 (21.f5 Qe5 22.gh4 Rac8+/–) 21...hg3 22.hg3 Nh5 (22...Qc6 23.Kg1+/–) 23.Rg1 (23.Rh1!? Qg4 24.Rh3 d4+–) 23...Qg6+/– 24.Kf2 Qc2 25.Qc1 (better is 25.Qa2 Qa2 26.Ra2+/–) 25...Qf5?? (better is 25...Qd3+=) 26.g4+– Nf4 (26...Qf6 27.gh5 Qh4 28.Rg3+–) 27.gf5 (27.ef4?! Qf4 28.Kg2 Qg4 29.Kf2 Qf4 30.Kg2 Rae8+=) 27...Nd3 28.Ke2 Nc1 29.Rac1 d4 (29...Rfd8 30.Rg4 d4 31.f6+–) 30.Nd5 f6 (30...Rfd8 31.e4 Rd6 32.f6+–) 31.Rc6 (31.Ne7 Kf7 32.Rc7 Ke8 33.Rg7 Rf7 34.Rf7 Kf7 35.Nd5 Kf8+–) 31...a5 (31...de3 32.de3 Rf7 33.Nf6 Kf8 34.Rh1+–) 32.Nf6 Kf7 33.Nd7 Rfe8 34.Nb6 (34.Rcg6 Rg8 35.Ne5 Ke7 36.Nc6 Ke8 37.Nd4 Ra7+–) 34...Rab8 35.Rg4 de3 36.de3 Rh8 (36...Kg8 37.Nc4 Kf8 38.Rh4+–) 37.Rd4 (better is 37.Rc7!? Kf6 38.e4 Rb6 39.Rg6 Ke5 40.Re7 Kf4 41.Rb6 Rh2 42.Kd3 Ra2+–) 37...Rh2 38.Kd3 Rh1 39.Rd7 Kg8 40.Rc8 (better is 40.Nd5 Rd1 41.Ke2+–) 40...Rc8= 41.Nc8 Rd1 42.Ke4 Rd7 43.Nb6 Re7 44.Kf4 (44.Kd4!?=) 44...Rb7 45.Nd5 Rb2 46.Nc3 (46.Ke5!?+=) 46...Rb4–/+ 47.e4 Rc4 48.Nb5 Ra4 49.Ke5 Rb4 50.Nc3 (50.Na3 a4 51.Kd5 Rb3–+) 50...Rc4 (better is 50...a4–+) 51.Nb5?? (better is 51.Nb1–+) 51...Rc5 52.Kd4 Rb5 53.Kc4 Rb8 54.e5 a4 55.e6 Kf8 (55...Kf8 56.Kd5 a3–+) 0–1. Fournier,Frederic – malencho (1780), Active echecs21.com, 2004.

2...c6

(--> 1.b4 c6 2.Bb2 d5).

3.b5 Nf6 4.e3 e6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c6).

3.d4 Bf5 4.e3 e6 5.a3 Nf6 6.Nf3 Nbd7 7.c4 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3 Nbd7 7.d4).

3.d4 Nf6 4.e3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.d4).

3.e3 a6 (--> 2…a6 3.e3 c6).

3.e3 Qc7 4.Nf3 Nd7 5.c4 Ngf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Qc7 5.c4 Nbd7).

3.e3 e5 4.a3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.e3 c6).

3.e3 f6 4.Bd3 e5 5.a3 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 c6 5.Bd3).

3.Nf3 a5 4.a3 ab4 5.ab4 Ra1 6.Ba1 Nf6 7.e3 Qb6 8.c3 (--> 1.b4 c6 2.Bb2 a5 3.a3 ab4 4.ab4 Ra1 5.Ba1 Qb6 6.c3 d5 7.Nf3 Nf6 8.e3).

3.Nf3 Bg4 4.e3 Nf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4).

3.g3 Nf6 4.Bg2 g6 5.Nf3 Bg7 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 d5 5.Bg2 c6).

3.a3 a5

(--> 1.b4 c6 2.Bb2 a5 3.a3 d5).

4.e3 ab4 5.ab4 Ra1 6.Ba1 Qb6 7.c3 (--> 1.b4 c6 2.Bb2 a5 3.a3 ab4 4.ab4 Ra1 5.Ba1 Qb6 6.c3 d5 7.e3).

3.a3 e6

4.e3 (--> 1.b4 c6 2.Bb2 d5 3.e3 e6 4.a3).

4.e3 f5 5.Nf3 Nf6 (--> 1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.a3 d5 5.Nf3 c6).

3.a3 Bf5

4.e3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.a3).

4.e3 e6 5.d4 Nf6 6.Nf3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 c6 5.d4 e6 6.a3).

3.a3 Nf6

4.e3 Nbd7 5.c4 e5 6.cd5 cd5 7.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6 6.c4 c6 7.cd5 cd5).

4.e3 Nbd7 5.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.a3).

4.e3 Bf5 5.Nf3 e6 6.c4 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3).

3.a4 e6

4.e3 Nf6 5.b5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3).

4.e3 Nf6 5.b5 Be7 6.Nf3 0–0 7.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 c6 7.a4).

3.e3 a5

4.a3 ab4 5.ab4 Ra1 6.Ba1 Qb6 7.c3 (--> 1.b4 c6 2.Bb2 a5 3.a3 ab4 4.ab4 Ra1 5.Ba1 Qb6 6.c3 d5 7.e3).

4.b5 Bf5 5.a4 (--> 1.b4 a5 2.b5 c6 3.a4 d5 4.Bb2 Bf5 5.e3).

4.b5 Nf6 5.a4 e6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 a5).

3.e3 Qb6

4.a3 a5 5.c3 (--> 1.b4 c6 2.Bb2 a5 3.c3 Qb6 4.a3 d5 5.e3).

4.a3 a5 5.c3 ab4 6.ab4 Ra1 7.Ba1 (--> 1.b4 c6 2.Bb2 a5 3.a3 ab4 4.ab4 Ra1 5.Ba1 Qb6 6.c3 d5 7.e3).

3.e3 Nd7

4.a4 Ngf6 5.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.a4).

4.c4 e5 (--> 1.b4 c6 2.c4 d5 3.e3 e5 4.Bb2 Nd7).

4.c4 e5 5.a3 Bd6 6.cd5 cd5 7.Nf3 Ngf6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6 6.c4 c6 7.cd5 cd5).

4.c4 e5 5.cd5 cd5 6.a3 Ngf6 7.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6 6.c4 c6 7.cd5 cd5).

4.c4 e6 5.b5 Ngf6=+ 6.a4 Be7 7.Nf3 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 Nbd7 8.Be2).

4.c4 e6 5.Nf3 Ngf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.c4 e6).

4.c4 Ngf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 Nbd7).

4.c4 Ngf6 5.Nc3 e6 6.a3 Be7 7.Nf3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 c6 7.Nc3 Nbd7).

4.c4 Ngf6 5.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.c4).

4.d4 Ngf6 5.Nd2 e6 6.a3 Be7 7.c4 0–0 8.Ngf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 c6 7.d4 Nbd7 8.Nbd2).

4.Nf3 Ngf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7).

4.Nf3 Ngf6 5.c4 e6 6.a3 Be7 7.Nc3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 c6 7.Nc3 Nbd7).

3.e3 e6

4.a3 Nf6 5.Nf3 Bd6 6.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4 c6).

4.c4 (--> 1.b4 c6 2.c4 d5 3.e3 e6 4.Bb2).

4.c4 Nf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 e6).

4.c4 Nf6 5.b5 Be7 6.Nf3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.c4 c6).

4.Nf3 Bd6 5.a3 Nf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6 5.a3 Bd6).

4.Nf3 Nf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6).

4.Nf3 Nf6 5.b5 Bd6 6.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 Bd6 6.Nf3).

4.Nf3 Nf6 5.Be2 Be7 6.a3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.Be2 c6).

3.e3 Bf5

4.c4 e6 5.a3 Nd7 6.Nf3 Ngf6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3 Nbd7).

4.c4 e6 5.a3 Nf6 6.Nf3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3).

4.c4 e6 5.c5 Nf6 6.Nf3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.c5).

4.c4 e6 5.Nf3 Nd7 6.Be2 Ngf6 7.a3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3 Nbd7 7.Be2).

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

4.c4 e6 5.Nf3 Nf6 6.c5 Be7 7.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.c5 Nbd7 7.Be2 Be7).

4.c4 Nf6 5.Nf3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 c6 5.c4).

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

4.d4 Nd7 5.Nf3 e6 6.a3 Ngf6 7.c4 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3 Nbd7 7.d4).

4.Nf3 Nd7 5.c4 e6 6.a3 Ngf6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3 Nbd7).

4.Nf3 Nd7 5.c4 e6 6.b5 Ngf6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.b5 Nbd7).

4.Nf3 Nd7 5.c4 Ngf6 6.Nc3 e6 7.a3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3 Nbd7 7.Nc3).

4.Nf3 e6 5.a3 Nf6 6.c4 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3).

4.Nf3 e6 5.a3 Nf6 6.d4 Nbd7 7.c4 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3 Nbd7 7.d4).

4.Nf3 e6 5.c4 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.c4 e6 5.Nf3).

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

4.Nf3 e6 5.Be2 Nf6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 c6 5.Be2 e6).

4.Nf3 Nf6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 c6).

3.e3 Nf6

(--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6).

4.a3 Nbd7 5.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.a3).

4.a3 e6 5.c4 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 e6 5.a3).

4.a3 e6 5.c4 a5 6.b5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 a5 5.b5 c6 6.c4).

4.a3 Bg4 5.Nf3 e6 6.Be2 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.Be2 e6 6.a3).

4.a4 e6 5.b5 a6 6.c4 ab5 7.ab5 Ra1 8.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.c4)

4.a4 Bf5 5.Nf3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 c6 5.a4).

4.a4 g6 5.Nf3 Bg7 6.c4 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.a4 d5).

4.c4 Nbd7 5.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.c4).

4.c4 e6 5.b5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c6 5.c4).

4.c4 e6 5.b5 Bd6 6.Nf3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c6).

4.c4 e6 5.b5 Bd6 6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 c6).

4.c4 e6 5.cd5 cd5 6.b5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c6 5.c4 cb5 6.cb5).

4.c4 Bf5 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.c4 c6).

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

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

4.c4 g6 5.Nf3 Bg7 6.Be2 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.Be2 d5).

4.Be2 e6 5.a3 Nbd7 6.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.Be2 e6 6.a3).

4.Nf3 Nbd7 5.Be2 e6 6.a3 Bd6 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4 c6 7.Be2).

4.Nf3 e6 5.b5 Be7 6.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 Be7 6.Nf3).

4.Nf3 Bf5 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 c6).

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

4.Nf3 Bg4 5.a3 Nbd7 6.Be2 e6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.Be2 e6 6.a3 Nbd7).

4.Nf3 Bg4 5.c4 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 Bg4 5.Nf3).

4.Nf3 Bg4 5.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 Bg4 4.e3 Nbd7 5.Be2 c6).

4.Nf3 g6 5.c4 Bg7 6.Nc3 0–0 7.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.d4 d5 7.Nc3).

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

4.Nf3 g6 5.c4 Bg7 6.Be2 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.Be2 d5).

4.Nf3 g6 5.Be2 Bg7 6.0–0 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.Be2 0–0 6.0–0 c6).

4.f4 g6 5.Nf3 Bg7 6.Be2 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.f4 0–0 5.Nf3 d5 6.Be2 c6).

4.f4 g6 5.Nf3 Bg7 6.Be2 0–0 7.0–0 Bg4 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.f4 0–0 5.Nf3 d5 6.Be2 Bg4 7.0–0 c6).

3.Nf3 Nd7

4.e3 Ngf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7).

4.g3 Ngf6 5.Bg2 g6 6.0–0 Bg7 7.d3 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0–0 5.Bg2 d5 6.0–0 c6 7.d3 Nbd7).

4.g3 Ngf6 5.Bg2 g6 6.d3 Bg7 7.0–0 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0–0 5.Bg2 d5 6.0–0 c6 7.d3 Nbd7).

3.Nf3 e6

4.e3 Nf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6).

4.e3 Nf6 5.a3 Be7 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 c6).

3.Nf3 Bf5

4.e3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.Nf3).

4.e3 e6 5.a3 Nf6 6.c4 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3).

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

4.e3 Nf6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 c6).

3.Nf3 Nf6

4.e3 e6 5.a3 Nbd7 6.c4 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4 c6).

4.e3 e6 5.a3 Be7 6.d4 0–0 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 c6 7.d4).

4.e3 Bg4 5.c4 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 Bg4 5.Nf3).

4.e3 Bg4 5.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 Bg4 4.e3 Nbd7 5.Be2 c6).

4.e3 Bg4 5.Be2 Nbd7 6.0–0 e6 7.a3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.Be2 e6 6.a3 Nbd7 7.0–0).

4.e3 Bg4 5.h3 Bh5 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.h3 Bh5).

4.e3 g6 5.c4 Bg7 6.Nc3 0–0 7.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.d4 d5 7.Nc3).

4.e3 g6 5.Be2 Bg7 6.0–0 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.Be2 0–0 6.0–0 c6).

2...Nc6

3.a3 d4 4.c3 Bf5 5.cd4 Nd4 6.d3 e5 7.e3+/– Ne6 8.Be5 Be7 9.e4 Bf6 10.Bf6+– Nf6? 11.ef5 Nd4 12.Nf3 0–0 13.Nc3 Re8 14.Kd2 Nf3? 15.Qf3+– c6 16.Be2 Nd5 17.Rac1 Qf6 18.Nd5 cd5 19.Qd5 Qb2+/– 20.Rc2 Qa3?? 21.Qc4 Qa4 22.Rhc1 Qd7 23.f6! g6 24.Bg4 Qd6 25.Re1 Qf6 26.f3 Qg5 27.Kd1 Re1 28.Ke1 Re8 29.Kd1 Qh4? 30.g3 Qf6 31.Qa2 a6? 32.Re2 Rd8 33.Kd2 Kg7 34.Qc2 Rd6 35.Qc3 Qc3 36.Kc3 b5 37.Re5 f6 38.Re6 Re6 39.Be6 h5 40.h4 f5 41.Bc8 1–0. wlittle (2160) – stardom (1845), net–chess.com, 2002.

3.a3 e6 4.c3 Nf6 5.Nh3 h6 6.f4 e5–/+ 7.g3 d4 8.fe5 Ne5 9.cd4 Nc4 10.Bc3 Be6 11.d3 Ne3–/+ 12.Qd2?? Nfg4 13.Nf4? Bf5?? 14.Ng2 Qd5?? 15.Rg1?? Qe6 16.Ne3 Qe3 17.Rg2 Qe6 18.h3 Nf6 19.Qf4 Bd6 20.Qh4? Qb3 21.d5=+ (21...Nd5 22.Bg7=+). Cruncher87@ – IngeImmerfroh22@, mySchach.de, 2005.

3.a3= Nh6 4.e3 Bg4 5.Be2 Be2 6.Ne2 Nf5 7.b5 (7.0–0 e6=) 7...Na5 8.d3 b6 (8...Qd7 9.Be5=) 9.0–0 (9.Nbc3+=) 9...h5 (9...a6 10.a4+=) 10.Nf4 (10.e4 de4 11.de4 Nd6+=) 10...e6 (10...a6 11.Nc3+/–) 11.Nd2 (11.e4 de4 12.de4 Nd6+=) 11...Qd6 (11...Nd6 12.a4+= (worse is 12.Nh5 Qh4 13.g4 Nb5+=)) 12.Nf3 (12.Bc3 Nb7+=) 12...f6 (12...Qc5 13.Be5+=) 13.g3 (13.Ng6!? Rh6 14.Nf8 Kf8 15.Bc3+/–) 13...e5 (13...0–0–0 14.e4 de4 15.de4+/–) 14.Ng6+= Rh6 15.Nfh4 (15.Nf8!? Kf8 16.Bc3+=) 15...Nh4= 16.Nh4 (16.Nf8 Nf5 17.e4 Ne7–+ (17...Kf8?! 18.ef5 a6 19.a4 ab5 20.ab5=)) 16...g6 (16...Qd7 17.f4 Qb5 18.Rb1=) 17.Qf3 (17.e4 0–0–0 18.Bc1+=) 17...Qe6 (17...c6 18.e4 de4 19.Qe4+=) 18.a4 (18.e4 c6+=) 18...c5 (better is 18...g5!? 19.Ng2 h4+=) 19.e4+= d4 20.Bc1 g5 21.Nf5 Rh7 (21...Rh8 22.Bd2+=) 22.Bd2 0–0–0 (22...Nb7 23.a5+=) 23.Ba5+/– ba5 24.Rfc1 (24.Rac1 Qa2+/–) 24...Kb8 (24...g4 25.Qe2+/–) 25.Qe2 (25.c3 Qb3+/–) 25...h4 26.g4 (26.c3 Bd6+/–) 26...Rhd7 (26...c4 27.c3 Bc5 28.Rab1+/–) 27.Qd2 (27.c3 Bd6+/–) 27...Qb6 (27...c4 28.Qa5 Bc5 29.b6 Bb6 30.Qa6+–) 28.Rab1 c4 29.h3 (29.dc4 Rc8+/–) 29...Bb4 30.Qe2 Bc3 (30...c3 31.Re1+=) 31.Rf1 (31.dc4 Rc8+=) 31...Rc8 32.dc4 (32.Qf3 Rdc7+=) 32...Qc5 33.Rb3 (33.Rfd1 Qc4 34.Rd3 Qa4=) 33...Qc4 34.Qd3 (34.Qf3 Qa4 35.Rfb1 Qa2+=) 34...Kb7 (34...Bb4 35.Rd1=) 35.Rfb1 (35.Qf3 Qa4 36.Rfb1 Qa2+=) 35...Kb6 (35...Bb4 36.R1b2 Qd3 37.cd3 Rc1 38.Kg2 Ra1–/+) 36.Qf3+= Qe6 (worse is 36...Qa4 37.Ne7 Rf8 38.Nd5 Kb7 39.b6+–) 37.Qd3 (37.Rd1 Kb7+=) 37...Rc4 (37...Qc4 38.Rc1=) 38.Rd1 Rdc7 39.Ra3 (39.Qf3 Kb7=) 39...Bb4 (better is 39...Bb2 40.Rb3 Rc2=) 40.Ra2?? (better is 40.Rb3=) 40...Rc3–+ 41.Qf1 (41.Rb2 Rd3 42.cd3 Kb7–+) 41...Qa2 (41...Qa2 42.Qg2 Qc2–+) 0–1. Schneider,Helmut – Pittag,Andreas, Dortmund op–B, 2003.

3.b5 a6?? 4.bc6+– bc6 5.e3 Bf5 6.Nf3 Qd6 7.Be2 Qg6 8.g3 (8.Nh4!? Qg5 9.Nf5 Qf5+–) 8...Bc2 9.Qc1 Bb1 10.Rb1 e6 (10...c5 11.Ne5 Qd6 12.Qc2+–) 11.0–0 (better is 11.Qc6 Kd8 12.Qa8 Ke7+–) 11...Nf6 (11...c5 12.Ne5 Qg5 13.Qc2+–) 12.Kg2 (12.Qc6 Nd7 13.Qa8 Ke7 14.Ba3 c5+–) 12...Ng4?? (12...c5+–) 13.Nh4 (13.Qc6 Kd8 14.Qa8 Kd7 15.Ba6 Bd6 16.Qh8 f6+–) 13...Qh6 (13...Qe4 14.Bf3 Qa4 15.Bg4+–) 14.Bg4 (14.Qc6 Ke7 15.Qc7 Ke8 16.Qc6 Kd8 17.Qa8 Kd7 18.Qa7 Ke8+–) 14...Qg5 (14...c5 15.Qc2 Bd6 16.e4+–) 15.Be2 (better is 15.Qc6 Kd8 16.Qa8 Kd7+–) 15...Bb4 (15...c5+–) 16.Qc6 Ke7 17.Qc7 Ke8 18.Be5 (better is 18.Qc6 Ke7 19.Nf3 Rhc8 20.Qb7 Ke8 21.Ng5 Be7+–) 18...Rd8 19.Rb4 Rd7 20.Rb8 Rd8 (20...Ke7 21.Qc5 Rd6 22.Qd6) 21.Rd8 (21.Rb7 Qg3 22.fg3 Rd7 23.Qd7 Kf8 24.Qf7) 21...Qd8+– 22.Qd8 (22.Qc6 Qd7 23.Qa6 Rg8 24.Bb5 Ke7 25.Bd7 Re8 26.Qd6 Kd8 27.Be6) 22...Kd8 23.Bg7 Rg8 24.Be5 Ke7 25.Rc1 Kd7 26.Ba6 (26.Ba6 Ra8 27.Bb5 Ke7 28.Rc7 Kf8 29.a4+–) 1–0. Fournier,Frederic (1780) – placto, Active ajedrez21.com, 2005.

3.b5 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.b5 Nc6).

3.b5 Bg4 4.bc6 bc6 5.h3 Bf5 6.e3 Qb8 7.Qc1 e6 8.Nf3 Bc5 (8...Qb6+–) 9.Bg7 Qb6 10.Bh8 Bc2 (10...Ne7+–) 11.Qc2 0–0–0 12.a4 (Better is 12.Nc3 Qb7+–) 12...Nf6 13.Bf6 Rg8 14.a5 Qb5 15.Nc3 Qb4 16.Na4 Be3 17.fe3 Rg6 18.Be5 f6 19.Bh2 Qa5 20.Qc6 Qb4 21.Ba6 Kd8 22.Qc7 Ke8 23.Bd6 Rg2 24.Qe7 1–0. maaxa – mary3, Live Game Caissa's Web, 2004.

3.c3 Ne5 4.d3 Ng4 (4...Nf6 5.e3+=) 5.Nf3= Bf5 (5...Qd6 6.Nbd2=) 6.Nd4 (6.Nbd2 N4f6=) 6...Bg6 (6...Bd7 7.Nf3=) 7.Qa4 Qd7 8.Qd7 Kd7 9.h3 (9.Nd2 e6=) 9...Ne5 (9...N4f6 10.Nf3=) 10.f4 (10.b5 c5=) 10...Nc6 11.Nc6 bc6 (11...Kc6 12.Nd2=) 12.Nd2+= Nf6 (12...e6 13.Nb3+=) 13.Nf3 c5 (13...e6 14.Ne5 Ke8 15.Nc6+=) 14.Ne5 Ke6 (14...Ke8!?+=) 15.bc5 (better is 15.g4 h5 16.Bg2 hg4 17.hg4 Rh1 18.Bh1+–) 15...Bf5? (better is 15...Nd7 16.c4 Ne5 17.Be5 f6+/–) 16.g4+– Bg6 17.c4 (17.Ng6?! hg6 18.Bg2 Rb8+–) 1–0. Wall,Bill – Lifejacket, internet, 2000.

3.c3 e6 4.e3 Nf6 5.a3 Ne4 6.Nf3 a6 7.c4 dc4 8.Bc4 b5 9.Be2 Nf2?? (better is 9...Nf6=) 10.Kf2+– Bd6? (10...Bb7+–) 11.Qc2 (worse is 11.Bg7 Rg8 12.Bb2 Bb7+–) 11...0–0 (11...Ne7 12.Bg7 Rg8 13.Qh7+–) 12.Qc6 Bd7 13.Qc3 Rc8 (13...f6+–) 14.Qg7 1–0. Janek – Vogs, internet, 2016.

3.d4 Nb4!? 4.a3 Nc6 –/+.

3.d4 e6 4.a3 Nf6 5.Nf3 Bd6 6.e3 Bd7 7.Bb5 (7.Bd3 Ne7=) 7...a6 8.Bc6 Bc6 9.Nbd2 0–0 10.0–0 Re8 11.Ne5 Be5 (11...Ba4!?+=) 12.de5= Ne4 13.Ne4 de4 14.c4 b6 15.Bd4 Qh4 16.g3 (16.Qc2 Red8+=) 16...Qh3 17.c5 bc5 18.Bc5 Red8 19.Qc2 Rd5 (19...Bb5 20.Rfe1 Qf5 21.Red1+=) 20.Rad1 (20.Bd4 Bb5 21.Rfc1 Bd3=) 20...Rad8 (20...Bb5 21.Rfe1 Re5 22.Be7–/+) 21.Rd5 (21.Bd4 Bb5 22.Rfe1 Qg4=) 21...ed5+= (worse is 21...Rd5 22.Bd4 Bb5 23.Rc1+/–) 22.Rd1 h6?? (22...Bb5!?+=) 23.Bd4 (better is 23.Be7!? Rd7 24.Qc6 Re7 25.Qd5+–) 23...Bd7 24.Qc7 Rc8 25.Qd6?? (better is 25.Qb7=) 25…Bg4–+ (25...Bg4 26.Qa6 Rc4 27.Qc4 dc4–+) 0–1. Dazzer – pieeater, ChessWorld.net, 2012.

3.e3 a6 (--> 2…a6 3.e3 Nc6).

3.e3 Nb4 4.d4 (4.Nf3 Bf5 5.Nd4 Bd7=+) 4...Bd7 (4...Bf5 5.Na3–/+) 5.Nf3 (5.a3 Nc6=+) 5...e6 6.Be2 (6.a3 Nc6=+) 6...Nf6 7.0–0 c5 8.c4 cd4 9.Nd4 Be7 10.cd5 Nbd5 11.Nc3 Nc3 12.Bc3 0–0 13.Bd3 Rc8 14.Rc1 Bc6 15.h3 Nd5 16.Ba1 Be8 17.Bb1 Rc1 18.Qc1 Qc7 19.Qd2 Bf6 20.Rc1 Qd6 21.Qc2 Bd7?? 22.Qh7# 1–0. revbodio1 – ablah, Live Game Caissa's Web, 2004.

3.Nf3 Nb4=+ 4.c3 Nc6–/+ 5.Na3 Nf6 6.d3 e6 7.e3 Bd6 8.Be2 0–0 9.d4 Ne4 10.Nb5 Nf2?? 11.Kf2+/– a6 12.Nd6+– Qd6 13.Qd3 b5 14.Ng5 g6 15.a4 f6 16.Nf3 e5 17.e4 ba4 18.Ba3 de4 19.Qe4 Bf5 20.Bd6 Be4 21.Bf8 ed4 22.cd4 Rf8 23.Ra4 f5 24.Ra6 f4 (24...Bf3 25.Bf3 (< 25.Kf3 Nd4 26.Kf2 Kg7+–) 25...Nd4 26.Rc1+–) 1–0. icewater – enuffzunff, Caissa.com, 2004.

3.a3 a5

4.b5 Nb8 5.Nf3 Bf5 (5...Nd7 6.Bd4 f6 7.e3 Nh6 8.Bb2 Nc5 9.Nc3 Nf5 10.d4 Ne4; 5...Nf6 6.Bd4 Qd6 7.Be5 Qc5 8.e3 Nbd7 9.d4 Qb6 10.Nc3 a4) 6.Nc3 e6 (6...Nf6 7.g3 Nbd7 8.Bg2 Nc5 9.0–0 h5 10.d3 e6) 7.Nd4 Bg4 (7...Nh6 8.Nf5 Nf5 9.e4 de4 10.Ne4 Nd7) 8.h3 c5?? (better is 8...Bh5= 9.g4 Bg6 10.h4 e5) 9.bc6+– (9.bc6 Bh5 10.g4+–; 9.hg4?! cd4 10.Na4 e5+=) 1–0. Fritz 11 – nn, 2011.

4.b5 Na7

5.a4 Bf5 (5...Nf6 6.Nf3 g6 7.e3 Bg7 8.Nc3 Ne4 9.Be2 0–0 10.0–0 Bd7; 5...Bd7 6.Nf3 Nf6 7.Nc3 e6 8.e3 Bd6 9.Bd3 0–0 10.0–0 e5; 5...c5 6.Nf3 Nf6 7.e3 e6 8.c4 Bd6 9.Nc3 b6 10.Bd3 dc4; 5...e6 6.Nf3 Nf6 7.e3 Bd6 8.Nc3 0–0 9.Be2 Bd7 10.0–0 Nc8; 5...Bg4 6.Nf3 Nf6 7.Ne5 Qd6 8.d4 c6 9.Ba3 Qc7 10.h3 Bf5) 6.Nf3 Nf6 7.e3 Nc8 8.Nc3 e6 9.Bd3 Nd6 10.0–0 Be7.

5.e3 a4 6.Nf3 Bd7 7.Nc3 c6 8.Na4 Nb5 9.Nc5 Ra7 (9...Nd6!?+=) 10.Nd7 Qd7 11.Bb5 cb5 12.0–0 e6 13.d3 Nf6 14.Ne5 (14.Bf6 gf6 15.Qc1 Rg8+=) 14...Qd6 15.c4 dc4 16.dc4 Qd1 17.Rfd1 Be7? (better is 17...bc4!? 18.Nc4 Bc5+=) 18.cb5+– 0–0 19.a4 Rfa8 20.Rd4 (20.Rac1 Ra4 21.Rc7 Ra2+/–) 20...Bc5 (better is 20...Nd5!?+=) 21.Rc4+/– Bd6 22.Nd3 Nd5 23.Bd4 Ra5 24.h3 (24.e4 Nf4 25.Nf4 Bf4+–) 24...e5 (24...f5 25.f3+/–) 25.Be5 (25.Ne5 Be5 26.Be5 f6+–) 25...Be5 26.Ne5 Nb6 (26...f6 27.Nd7 Rb5 28.Rd1+–) 27.Rb4 (better is 27.Rc7!? Rb5 28.ab5 Ra1 29.Kh2+–) 27...Na4+/– 28.Nd3 b6 29.Ne5 Nc3 30.Rc1?? (better is 30.Ra5 ba5 31.Rb3+–) 30...Ne2–+ 31.Kf1 Nc1 32.Nc6 (32.g4 Na2 33.Rb3 Ra3 34.Ra3 Ra3–+) 32...Ra1 0–1. Fournier,Frederic – sixmix, Active, 2008.

5.e3 c6 6.a4 cb5 7.ab5 Qb6 8.Bd4 Qg6 9.Nc3 e6? (better is 9...e5 10.Be5 Bg4+–) 10.Ra5 Bb4 11.Ra7 (11.Ra7 Ra7 12.Ba7+–) 1–0. pierre – oppo, internet, 2012.

5.e3 Qd7 6.a4 c6? (6...Qd6 7.Nf3+=) 7.c4?? (7.b6!? f6+–) 7...dc4? (7...b6+=) 8.Bc4?? (better is 8.b6 Nb5 9.ab5 cb5 10.d3+–) 8...cb5+= 9.ab5 Nb5 10.Qb3 (better is 10.Nf3 Nd6 11.Ne5=) 10...Nf6?? (better is 10...Nd6 11.Nc3 Nc4 12.Qc4 Qc6 13.Qc6 bc6–/+) 11.Bb5+– (11.Qb5?! Qb5 12.Bb5 Bd7+–) 11...Ne4 (11...b6+–) 12.Bd7 Bd7 13.Qb7 Rd8 14.Qe4 e6 15.Ba3 (15.Ra5 Rc8+–) 15...Ba3 16.Ra3 0–0 17.Nc3 a4 18.Nge2 Rb8 19.0–0 f5 20.Qd4 f4 21.Qd7 fe3 22.fe3 h5 23.Rf8 Rf8 24.Qe6 Kh7 25.Ra4 Rb8 (25...Rf6 26.Qe4 Kh6 27.Ra8 g6 28.Qe5 Kg7 29.Nd5 Kh7 30.Qf6 g5 31.Rh8) 26.Nf4 Rb1 (26...Rd8 27.Ra5 Rd5 28.Qg6 Kg8 29.Ra8 Rd8 30.Rd8) 27.Kf2 (27.Nb1 h4 28.Qg6 Kg8 29.Ra8) 27...Rb2 (27...Rb8 28.Ra5 Rb5 29.Qg6 Kg8 30.Ra8 Rb8 31.Rb8) 28.Ke2 (28.Qf5 Kg8 29.Ra8 Rb8 30.Rb8) 28...Kh8 (28...Rd2 29.Kd2 h4 30.Qg6 Kg8 31.Ra8) 29.Ra8 Kh7 (29...Rb8 30.Rb8 Kh7 31.Qg6) 30.Qg6 1–0. Fournier,Frederic (1760) – tama27(C), Active, 2005.

5.e3 Bf5 6.Nf3 Nf6 7.Nc3 Nc8 8.Bd3 Nd6 9.0–0 e6 10.Ne5 Be7.

5.e3 Nf6 6.Nf3 c6 7.a4 cb5 8.ab5 Bf5 9.Nc3 Nc8 10.Bd3 Nd6.

3.a3 a6

(--> 1.b4 a6 2.Bb2 Nc6 3.a3 d5).

4.e3 (--> 2…a6 3.e3 Nc6 4.a3).

4.Nf3 (--> 2…a6 3.Nf3 Nc6 4.a3).

3.a3 b5

4.e3 a6= A) 5.f4 Nf6 (5...e6 6.Nf3 Nf6 7.Bd3 Be7 8.0–0 0–0 9.Nc3 Bb7 10.Qe2 Na7=; 5...Bf5 6.Nf3 Nf6 7.Be2 e6 8.0–0 Bd6 9.Nh4 Be4 10.d3 Bg6+=; 5...Qd6 6.Nf3 Nf6 7.Be2 Bf5 8.0–0 Rd8 9.a4 Qb4 10.Bf6 ef6=) 6.Nf3 e6 7.Be2 Bd6 8.0–0 0–0 9.a4 ba4 10.c3 Bd7=; B) 5.a4 Rb8 (5...ba4 6.c3 e5 7.Qa4 Nge7 8.d4 e4 9.Nd2 Ra7 10.Nb3 h6+=) 6.ab5 ab5 7.Na3 Nb4 8.Bc3 e6 9.Bb5 Bd7 10.Bd7 Qd7=; C) 5.Nf3 Qd6 (5...Nf6 6.a4 Nb4 7.Bf6 gf6 8.ab5 Bf5 9.Nd4 Qc8 10.ba6 e5+=) 6.a4 ba4 7.b5 ab5 8.Bb5 Bd7 9.Ra4 Ra4 10.Ba4 Nf6=.

4.e3 e5 5.Bb5 Bb7 6.Be5 f6 7.Bb2 Nh6 8.Nf3 Bd6 (8...Nf5 9.0–0+–) 9.0–0 (better is 9.Nd4!? Qd7+–) 9...0–0 10.c4 dc4 11.Bc4 Kh8 12.d4 Be7 (12...a5 13.b5 Ne7 14.Nc3+–) 13.Nbd2 Nf5 14.Rc1 Nd6 15.Be2 (15.Bd5 Qe8+–) 15...Nb8 (15...a5 16.ba5 Na5 17.Qc2+–) 16.Nc4 (16.Qc2 a5+–) 16...Nd7 (16...Nc4 17.Bc4 Bd6 18.d5+–) 17.Nd6 (17.Na5!? Bd5+–) 17...Bd6 18.Qc2 Rf7 19.Nh4 Nf8 20.Bf3 Bf3 21.Nf3 (21.gf3?! a5+–) 21...Qe7 22.Rfe1 Ng6 23.h3 Qd7 24.Qc6 Qe6 (24...Qc6 25.Rc6 Ne7+–) 25.Qa8 Rf8 26.Qc6 (26.Qa7 f5+–) 26...Re8 (26...a5 27.ba5 Rb8 28.a6+–) 27.d5 Qe7 28.Qc3 Ne5 29.Ne5 Be5 30.Qc2 Bb2 31.Qb2 Qd6 32.Qc2 (32.Qd4 a5+–) 32...Rc8 (32...Qd5 33.Qc7 Qg8 34.Qa7+–) 33.Qc6 Qe5 34.Rc2 Qf5 (34...Rd8 35.e4 h6 36.Qe6+–) 35.Rec1 Re8 (35...h6 36.d6 Qd3 37.dc7+–) 36.Qc7 (36.Qe8) 36...Rg8 (36...Qd5 37.Qa7 Qe6 38.Rc6+–) 37.Qc6 Qe4 (37...h5 38.Qe6 Qd3 39.d6 Qa3 40.Rc8 Qc1 41.Rc1+–) 38.d6 (better is 38.Qe6 Qe6 39.de6 Rf8+–) 38...Qc6 39.Rc6 f5 40.Rc8 f4 41.d7 Rc8 (41...h6 42.Rg8 Kg8 43.d8Q Kf7 44.Qd7 Kg6 45.Rc6 Kh7 46.Qf5 g6 47.Qg6 Kh8 48.Rc8) 42.Rc8 1–0. Fournier,Frederic (1985) – javo298 (1795), Active, 2005.

4.e3 e5 5.Bb5 Bb7 6.Be5 Nf6 7.Nf3 Be7 8.Nd4 Qd7 9.c4 0–0? (9...a6 10.Bc6 Bc6+–) 10.Qa4 dc4 (10...Ng4 11.cd5 (worse is 11.Bc6 Bc6 12.Qc6 Ne5 13.Qd5 Bf6+–; 11.Nc6 a6 12.cd5 ab5 13.Qb5 Ba6+–) 11...Qd5 12.Bc6 Bc6 13.Nc6+– (13.Qc6?! Qe5 14.Nc3 Bd6+–)) 11.Bc6 (11.Nc6?! a6 12.Ne7 Qe7 13.Bf6 Qf6+–) 11...Bc6 12.Qc6 Qg4 13.Nc3 Nd7 (13...Rac8 14.0–0+–) 14.Bc7 Rac8 (14...Nf6 15.0–0+–) 15.h3 Qg2 (15...Nb8 16.Bb8 Qd4 17.Qc8 Rc8 18.ed4 Rb8+–) 16.Qg2 Rc7 17.Nd5 (17.Nd5 Kh8 18.Nc7+–) 1–0. Fournier,Frederic (2280) – SrATP (1705), Active, 2007.

4.e3 e5? 5.Nf3 Bd6 (5...a6 6.Ne5 Ne5 7.Be5+/–) 6.Bb5+– Bb7 (6...Nge7 7.Be5 a6 8.Bd6 (8.Bg7?! Rg8 9.Bc6 Nc6+/–) 8...Qd6 9.Bd3+–) 7.Ne5 (7.Be5 Be5 8.Bc6 Bc6 9.Ne5 Qd6+–) 7...Be5 8.Be5 Qg5 9.Bg3 Nge7 (9...d4 10.Bd3+–) 10.Nc3 0–0–0 (10...0–0 11.h4 Qf6 12.Bd3+–) 11.0–0 Ne5 (11...d4 12.h4 Qg6+–) 12.f4 Qg4 13.fe5 Qd1 14.Rad1 Ng6 (14...Rdf8+–) 15.Rf7 a6 16.Ba4 Rhg8 17.e6 Ne7 18.Re7 1–0. pierre – zapollo, internet, 2010.

4.e3 f6 5.Bb5+– Bd7? (5...Qd7 6.Nc3 e6 7.Nf3+–) 6.Nf3?? (better is 6.Qh5 g6 7.Qd5+–) 6...e5 7.0–0 Nce7 8.Bd7 Qd7 9.d3 c6 10.Nbd2 Ng6 11.c4 e4? (better is 11...a5 12.Qa4 Ra7 13.ba5 Bd6+/–) 12.de4+– de4 13.Ne4 Qg4 14.Nd6 Bd6 15.Qd6 Nh4 (15...N8e7+–) 16.Nh4 (16.Qc6 Kf7 17.Qd5 Qe6 18.Qa8 Nf3 19.Qf3 Qc4+–) 16...Qh4 (16...Ne7 17.Qd4 Qe6 18.Rfd1+–) 17.Rad1 (better is 17.Qc6 Kf7 18.Qa8 Qg4+–) 17...Ne7 (17...Kf7 18.Qc6 Ne7+–) 18.Qd7 (better is 18.Rd4 Qh5 19.Re4+–) 18...Kf7 19.Rd6 (19.Rd4 Qh6+–) 19...Rhd8? (19...Qc4 20.Qh3+–) 20.Qc7 (better is 20.Qe6 Kf8 21.Rd8 Rd8 22.Bd4+–) 20...Rd6 21.Qd6 Qc4 22.Rd1 Qe2 23.Qd2 (23.Bc3!? Qa2+–) 23...Qd2+/– 24.Rd2 Nd5 (24...a5 25.e4+/–) 25.Kf1 g5 (25...a5 26.b5!+–) 26.Ke2 (26.e4 Nb6 27.Rd6 Nc4 28.Rf6 Ke7+–) 26...h5 27.g3 Kg6 28.h3 Kf5 29.f3 Re8 (29...Ke6 30.e4 Ne7 31.Bc3+–) 30.Kf2 (better is 30.e4 Kg6+–) 30...Re3? (better is 30...Ke6+–) 31.Rd5! Ke6 (31...cd5 32.g4 Deflection (32.Ke3 Remove defender)) 32.Ke3 (32.Ke3 cd5 33.b5+–) 1–0. Fournier,Frederic (1850) – wein, Active, 2007.

4.e3 Nf6 5.Bb5 e5?? 6.Bc6+– Nd7 (6...Bd7 7.Ba8 Qa8 8.Be5+–) 7.Ba8 Bd6 (7...Nb6 8.Bc6 Bd7 9.Bd7 Nd7 10.Nc3+–) 8.Bd5 0–0 9.Nf3 Nf6 10.Bb3 Ne4 (10...e4 11.Ne5+–) 11.d3 Nf2 12.Kf2 Kh8 13.Rf1 f5 14.Kg1 e4 15.de4 fe4 16.Nd4 (16.Ne5 Be5 17.Qd8 Rd8 18.Be5 Ba6 19.Bc7 Bf1 20.Bd8 Ba6+–) 16...Re8 17.Qe2 (better is 17.Qh5 Rf8 18.Nd2 Bd7+–) 17...Qh4 18.g3 Bg3 19.hg3 Qg3 20.Qg2 Qe3 21.Kh1 (21.Rf2 Qh6+–) 21...Qh6 22.Qh2 Qe3 23.Nd2 Bg4 24.Rae1 (24.Nf5 Bf5 25.Rf5 h6 26.Bg7 Kh7 27.Bh6 Re6 28.Be3 Kg7 29.Rg1 Rg6 30.Qh6) 24...Qg5 25.Rf4 (25.Re4 Qg6 26.Ne6 Bh3 27.Ng7 Qg2 28.Qg2 Bg2 29.Kg2 h5 30.Ne6 Kh7 31.Ng5 Kg6 32.Rf6 Kg7 33.Rfe6 Kf8 34.Re8) 25...h5 26.Ref1 (better is 26.Rg4 Qe5 27.Qh4 Rf8+–) 26...e3 27.N2f3 (27.N4f3 Qg6 28.Bf7 Qd6 29.Rg4 Qh2 30.Kh2 Rf8 31.Rg7 Rf7 32.Rf7 Kg8 33.Ng5 ed2 34.Rf8) 27...Qg6 28.Nh4 Qe4 29.Re4 Re4 30.Ng6 (30.Qc7 Bd7 31.Qd8 Be8 32.Rf8 Kh7 33.Bg8 Kh8 34.Be6 Kh7 35.Rh8 Kh8 36.Qe8 Kh7 37.Qh5) 30...Kh7 31.Nf4 (31.Nf8 Kh6 32.Nf5 Bf5 33.Rf5 g6 34.Bg7 Kg7 35.Qc7 Re7 36.Qe7 Kh6 37.Qh7) 31...g5 32.Nh5 Kg6 (32...e2 33.Nf6 Kg7 34.Qh7 Kf8 35.Qf7) 33.Ng3 (33.Rf6 Kh7 34.Nf4 Bh3 35.Qh3 Kg7 36.Nf5) 33...Re7 (33...e2 34.Bf7 Kg7 35.Ne6) 34.Nde2 (34.Rf6 Kf6 35.Qh6 Ke5 36.Nde2) 34...Rh7 (34...Bf3 35.Rf3 Rh7 36.Bf7 Rf7 37.Qh5) 35.Rf6 Kg7 36.Rh6 (36.Rf7 Kg6 37.Qh7) 36...Kf8 37.Rh7 Be2 (37...Bf3 38.Kg1 Bd5 39.Rc7 Bg8 40.Qh8 Ke8 41.Qg8) 38.Ne2 (38.Rf7 Ke8 39.Qh8) 38...g4 (38...Ke8 39.Qe5 Kd8 40.Qh8) 39.Qh6 (39.Rf7 Ke8 40.Qh8) 39...Ke8 40.Qg7 Kd8 (40...g3 41.Qe7) 41.Qd7 1–0. Fournier,Frederic (1720) – LaReina37 (1775), Active, 2008.

4.Nf3 A) 4...Nf6 5.e3= (5.e4 de4 6.Bb5 Bd7 7.Bc6 Bc6 8.Ne5 Qd6 9.0–0 Bb7 10.Qe2 Rb8+=; 5.a4 ba4 6.b5 Nb8 7.Ra4 a6 8.e3 c6 9.ba6 Ba6 10.Be5 Nfd7=) 5...a6 6.a4 Nb4 7.Bf6 gf6 8.ab5 Bf5 9.Nd4 Qc8 10.ba6 e5+=; B) 4...Qd6 5.e3 (5.Nc3 a6 6.d4 Nf6 7.e3 Bg4 8.Be2 e6 9.h3 Bf3 10.Bf3 0–0–0=) 5...a6 6.a4 ba4 7.b5 ab5 8.Bb5 Bd7 9.Ra4 Ra4 10.Ba4 Nf6=; C) 4...a6 5.e3 Qd6 (5...Nf6 6.a4 Nb4 7.Bf6 gf6 8.ab5 Bf5 9.Nd4 Qc8 10.ba6 e5+=) 6.a4 ba4 7.b5 ab5 8.Bb5 Bd7 9.Ra4 Ra4 10.Ba4 Nf6=.

3.a3 Bd7

4.e3 e5 5.c3 (better is 5.b5!? Nce7 6.Be5+=) 5...a6 6.d4 (6.c4 dc4 7.Bc4 Nf6=+) 6...Nf6 7.h3 (7.Nf3 e4 8.Ne5 Bd6=+) 7...Bd6 8.Bd3 (8.c4 ed4 9.c5 Be7 10.ed4 0–0=+) 8...b5 (8...0–0 9.Nd2–/+) 9.Ne2 (9.a4=+) 9...ed4 (9...e4!? 10.Bc2 0–0–/+) 10.cd4= h6 (10...0–0 11.Nbc3=) 11.0–0 0–0 12.f3 (12.Nec3=) 12...Qc8 (12...Qe7 13.Bc1=+) 13.Bc2 (13.e4 Be7+=) 13...Bh3 (better is 13...Re8 14.Qd3 g6=) 14.Nf4?? (better is 14.gh3 Qh3 15.Rf2+=) 14...Bd7 (14...Bf5 15.Bf5 Qf5 16.Qd3–+) 15.Bc3 (15.Nc3 Bf4 16.ef4 Bf5–/+) 15...Ne7 (15...a5 16.ba5 Bf5 17.Bf5 Qf5 18.Qd3 Qd3 19.Nd3 Na5 20.Ba5 Ra5 21.Rc1–+) 16.Nd2 (16.Re1 Bf5–+) 16...Nf5 17.Nb3?? (better is 17.Bf5 Bf5 18.Qb3–+) 17...Ne3 (18.Qc1 Bf4–+) 0–1. presort – gdraper (1715), net–chess.com, 2005.

4.e3 Nf6 5.Nf3 e6 6.c4 dc4 7.Bc4 Bd6 8.0–0 0–0 9.d4 b6 10.Nc3 Qe8 11.e4 e5 12.de5 (12.Nd5!? Nd5 13.Bd5+/–) 12...Ne5= 13.Ne5 Be5 14.Qc2 a6 15.Nd5 Qe6?? (15...Ne4 16.Rae1 Bf5 17.Bd3 Bb2 18.Be4+– (18.Qb2?! Qd7 19.Be4 Be4 20.Nf6 gf6 21.Re4 Rfe8 22.Re8 Re8+=)) 16.Nf6?? (better is 16.Nc7 Qe7 17.Be5 Qe5 18.Na8 Ra8 19.Rad1+–) 16...Qf6+= 17.Be5 Qe5 18.Bd5 (better is 18.Rad1 Bb5 19.Rd5+=) 18...Qe8?? (better is 18...c6 19.Bc4 a5=) 19.Ba8+– Qa8 20.Qc7 Be6 21.Rfe1 a5 (21...b5 22.Rac1+–) 22.Qb6 a4 23.Rac1 Qe8 24.h3 Qe7 25.Rc7 Qf6 26.e5 Qf5 27.Rc3 g6 (27...Qg5 28.Qe3 Qh5 29.b5+–) 28.Qe3 Kg7 (28...Bb3 29.Qd3 Qg5 30.Rc5+–) 29.b5 (better is 29.g4 Qg4 30.hg4 Bg4 31.Qa7+–) 29...h6 (29...Bb3 30.Qd4+–) 30.Rcc1 (30.g4 Qg5 31.Qg5 hg5+–) 30...g5 31.b6 Kg6 (31...Bd5 32.Qc5 Rd8 33.Rcd1+–) 32.Qe4 (better is 32.b7!? g4 33.hg4 Qg4+–) 32...f6 (32...Qe4 33.Re4 Kf5 34.f3+–) 33.Qf5 Bf5 34.e6 g4 (34...Re8+–) 35.hg4 Bg4 36.e7 Re8 37.b7 Kf7 38.Rb1 h5 (38...Bd7 39.b8Q Rb8 40.Rb8+–) 39.b8Q Rc8 40.Qc8! Bc8 (40...Bc8 41.e8Q Mate attack) 41.e8Q Kg7 42.Re7 Kh6 43.Qg8 Bf5 (43...Be6 44.Qg7) 44.Rbb7 (44.Qg7) 44...h4 (44...Bg6 45.f4 Bf7 46.Qf7 h4 47.Qh7) 45.Rh7! Bh7 (45...Bh7 46.Rh7 Mate attack) 46.Rh7 1–0. Fournier,Frederic (1865) – Chicot,Patricia (1700), Active, 2007.

4.e3 Nf6 5.Nf3 e6 6.c4 Be7 7.Nc3 Rf8 (7...0–0 8.d4=) 8.cd5+= ed5 9.d4 Be6 10.Bd3 Qd7 11.0–0 0–0–0 (11...a6 12.Na4+=) 12.Re1 (12.b5 Na5+/–) 12...g6 (12...Bf5 13.Rc1+/–) 13.e4 (better is 13.b5!? Na5 14.Qa4+–) 13...de4+= 14.Ne4 (worse is 14.Be4 Nd4 15.Nd4 Qd4+=) 14...Ne4 15.Be4 f5 (15...Rfe8 16.Rc1 Bd5 17.b5 Be4 18.Re4+/–) 16.Bd3 (better is 16.Bc6 Qc6 17.d5 Rd5 18.Nd4+–) 16...h5?? (16...Bf6!?=) 17.Rc1?? (17.b5 Na5 18.Qe2 Bd5 19.Qe7 Bf3 20.gf3 Nb3+–) 17...Rg8?? (17...Bf6 18.Qa4+/–) 18.Qc2?? (better is 18.b5 Na5 19.Qe2+–) 18...g5?? (18...Bd6 19.b5 Ne7 20.Ne5 Be5 21.de5+/–) 19.h3 (better is 19.Re6 Kb8 20.Bf5+–) 19...g4+/– 20.hg4 fg4? (20...hg4 21.Ne5 Ne5 22.Re5 g3 23.Re6 gf2 24.Qf2 Bh4 25.Qf5 Rdf8+–) 21.Ng5?? (better is 21.Ne5 Ne5 22.Re5+– (22.de5?! Bg5 23.Rcd1 g3=)) 21...Rg5 (21...Bg5!? 22.Re6 Bc1 23.Re1 Bb2 24.Bf5 Bd4 25.b5–+) 22.b5 Rgg8?? (better is 22...Nd4 23.Bd4 Ba3–+) 23.bc6+– Qc6 24.Qc6 bc6 25.Rc6 (25.Re6 Bd6+–) 25...Kd7?? (better is 25...Bd5 26.Rh6 Rg7 27.Rh5 Bf6+/–) 26.Rcc1 (26.Rce6 Bd6+–) 26...Ke8?? (26...Rb8 27.d5 Rb2 28.de6 Kd8 29.Rb1=) 27.Bc4 (27.Re6 Kd7 28.Ra6 Rb8 29.Bf5 Kd8 30.Ra7 Bd6+–) 27...Rg6?? (better is 27...Bc4 28.Rc4 Kd7=) 28.Be6+– (worse is 28.Re6 Re6 29.Be6 Rb8+–) 28...Re6 (28...g3 29.Rc7 gf2 30.Kf2+–) 29.Re6 h4 (29...Kd7 30.Ra6+–) 30.d5 (better is 30.Rc7 Rd7 31.Rd7 Kd7+–) 30...g3 (30...Kd7 31.Be5 Rc8 32.Ra6+–) 31.f3 (31.Rc7 Rd7 32.d6 Rd6 33.Rce7 Kd8+–) 31...h3 (31...Kd7 32.Be5 Bd6 33.Bd6 cd6+–) 32.Rce1 h2 33.Kh1 Kd7 34.Re7 (34.Re7 Kd6 35.Rg7+–) 1–0. Fournier,Frederic (2075) – Chicot,Patricia (1610), Active Blind, 2007.

3.a3 e5

(--> 1.b4 e5 2.a3 d5 3.Bb2 Nc6).

4.e3 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 Nc6 4.a3 e5).

4.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nc6).

3.a3 Bf5

4.b5 Nb8 5.e3 e6 6.d4 (6...Nf6 7.Nf3=+; 6.Nf3 Nf6=) =. kamera (1615) – NN, GameColony.com, 2002.

4.e3 e5 5.b5+= Nb8 6.Be5 Nf6 7.c4 (7.Nf3 Nbd7+=) 7...Bb1 (7...Nbd7 8.Bd4+=) 8.Qb1+/– Bd6 (8...Nbd7 9.Bb2+/–) 9.Bc3 (9.Qf5 Be5 10.Qe5 Qe7+–) 9...0–0 (9...Nbd7 10.cd5 Nb6 11.Bf6 Qf6 12.Qe4 Kf8 13.d4+/–) 10.Nf3 (10.Qf5 Be7+/–) 10...Nbd7 11.Bd3 (11.Qf5 dc4 12.Bc4 Qe7+/–) 11...h6 (11...dc4 12.Bc4 Qe7 13.Qb2+/–) 12.0–0 Re8 13.Be2 (13.cd5 Nd5 14.Bd4 N7f6+/–) 13...Nb6 (13...dc4 14.Bc4 Qe7 15.Qb2+/–) 14.d3 Qe7 15.a4 Rad8 (15...dc4 16.dc4 Ne4 17.Bd4+/–) 16.Qb2 (16.Bf6 Qf6 17.a5 Nd7+–) 16...dc4+/– 17.dc4 Nbd7 18.Rfd1 Rc8 (18...Qe6 19.Bd3+/–) 19.Rd2 (19.a5+–) 19...Ne5? (19...Ne4!? 20.Rd4 c5+/–) 20.Ne5 (20.c5 Nf3 21.Bf3 Bc5 22.Bf6 Qf6 23.Qf6 gf6 24.Bb7 Red8+–) 20...Be5 21.Be5 Qe5 22.Qe5 Re5 23.Rad1 (23.Bf3 c6+–) 23...Ree8 (23...c6 24.Bf3+–) 24.Bf3 Rb8 (24...c6 25.a5+–) 25.h3 g6 26.a5 a6 27.b6 (27.Kf1 Kg7+–) 27...c6 28.Rd6 Kg7 29.c5 (29.Rc1 Re5 30.Ra1 Rbe8+/–) 29...Ra8 (29...Re5 30.Rc1+/–) 30.h4 (30.R1d4 g5+–) 30...h5 (30...Re5 31.Rc1+–) 31.Kh2 (31.R1d4!? Re5 32.Rf4 Re6 33.Re6 fe6+–) 31...Re5+/– 32.Rc1 Ree8? (32...Ne4 33.Be4 Re4 34.Rd4 Rd4 35.ed4+/–) 33.Rb1?? (better is 33.Rc6!? bc6 34.Bc6 Kf8+–) 33...Rac8 (33...Ne4 34.Be4 Re4 35.Rd4 Rd4 36.ed4+/–) 34.Rb2 (34.Rb4 Re5 35.Rf4 Nd5+–) 34...Red8 (34...Ne4 35.Be4 Re4 36.Rd4 Rd4 37.ed4+/–) 35.Rbd2+– Re8 36.Kh3 Re5 37.Rd8 (better is 37.Rc2!?+–) 37...Rd8+= 38.Rd8 Re7 (38...Rc5!? 39.Rb8 Ra5 40.Rb7 Nd5+/–) 39.Rc8+– Rd7 (39...Ne8 40.Bc6 bc6 41.Rc6+–) 40.Bc6 (better is 40.Rc7!?+–) 40...bc6+/– 41.Rc6 The passed pawn on b6 will quickly become a dangerous weapon 41...Rb7?? (better is 41...Ne4+–) 42.Rc7 (better is 42.Rf6 Kf6 43.c6+–) 42...Rb8 43.c6 Ne8 (43...Ne4 44.f3 Nc5 45.b7+–) 44.Rb7 (44.Ra7 Nd6+–) 44...Rc8 45.c7 Nc7 (45...Kf6 46.Rb8 Rc7 47.bc7 Nc7 48.Rc8+–) 46.Rc7 (46.bc7?! Kf6+–) 46...Rd8 (46...Rb8 47.Ra7 Kf6 48.Ra6+–) 47.b7 (better is 47.Ra7!? Rd3+–) 47...Rb8 1–0. Kuipers,Stefan – Van Vliet,Harry, NED–ch U12 Hengelo, 2002.

4.e3 e6 5.c4 a5 (5...Nf6 6.Nf3=) 6.b5= Na7 (6...Nce7 7.Nf3=) 7.c5 (better is 7.Nf3=) 7...Bc5?? (better is 7...Nf6 8.d4 b6=) 8.Bg7+– Qg5 (8...Qd7 9.a4+–) 9.Bh8 f6 (9...Qe7 10.d4 Bd6 11.Be5+–) 10.Nf3 Qg6 (10...Qh6 11.d4 Bd6 12.Qa4+–) 11.Nh4 Qh6 (11...Bc2 12.Ng6 Bd1 13.Nf4+–) 12.Nf5 ef5 13.Qc2 Bd6 14.Qf5 Be5 15.Nc3 (15.Qe6 Kf8 16.Qd5 Ba1 17.Qb7 Re8 18.Qa7 Qg6+–) 15...Ne7 16.Qe6 Qf8 (16...Rd8 17.d4 Rd6 18.Qh3 (18.de5?! Re6 19.ef6 Qf8+/–) 18...Qh3 19.gh3 Bd4 20.ed4+–) 17.d4 (17.Nd5 Qf7 18.Nf6 Bf6 19.Qf6 Qd5+–) 17...Bd6 (17...Qf7 18.Qh3 (18.de5?! Qe6 19.Bf6 Ng8+/–) 18...Bd6 19.Qh6+–) 18.Bf6 c5 (18...Nac8 19.Nd5 Qf7 20.Qf7 Kf7 21.Be7 Ne7 22.Bc4+–) 19.Qd6 (19.Qd6 Rd8 20.Be7 Qe7 21.Qc5+–) 1–0. Kuipers,Stefan – Van Splunter,Jacco, Hengelo op U12, 2001.

4.e3 e6 5.Nf3 Nf6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.a3 Nc6).

4.e3 f6=.

4.e3 Nf6 5.Nf3 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.a3 Nc6).

4.Nf3 e5 5.Ne5+= Ne5 6.Be5 Qe7 7.Bb2 0–0–0 8.e3 c5 (better is 8...Kb8!?+=) 9.bc5+– Qc5 10.Bd4 (10.Bd3 Bd3 11.cd3 Rd7+–) 10...Qa5 (10...Qc2 11.Ba7 Qd1 12.Kd1 Bb1 13.Bb5+/–) 11.Nc3 Bc5?? (better is 11...Ne7+/–) 12.Bg7+– Ne7 13.Bh8 Rh8 14.Bd3 Bd3 15.cd3 d4 16.Ne4 de3 (16...Kb8 17.Qg4 de3 18.fe3+–) 17.fe3 (17.Nc5!? ef2 18.Kf1 Re8+–) 17...Bb6 18.Qc2 (18.0–0 f5 19.Nd6 Kc7+–) 18...Kb8 19.0–0 Rg8 (19...f5 20.Nd6+–) 20.g3 (better is 20.Rf7 Qe5 21.Qc3 Qe6+–) 20...f5 21.Nd6 Bc7 22.Nc4 Qc5 23.d4 Qc6 24.Rac1 Bg3 (24...h5+–) 25.Ne5 (better is 25.hg3 Rg3 26.Kf2 Rf3 27.Ke2 Rf1 28.Kf1 Qh1 29.Ke2 Qg2 30.Kd3 Qe4 31.Kc3 Qe6+–) 25...Qd5 (25...Be1 26.Ng6 Rg6) 26.Rf5 (better is 26.Qc7 Ka8 27.hg3+– (27.Qe7?? Be1 28.Qg5 Rg5 29.Ng4 Rg4)) 26...Be5 (26...Bh4 27.Rg5 Rg5 28.Ng4 Rg4 29.Kf1 Qg2) 27.Kf1–+ Qg2 (worse is 27...Nf5 28.Qf5 Qb5 29.d3 Rg1 30.Kf2 Bg3 31.hg3 Qf5 32.Kg1–+) 28.Ke1 Bg3?? (better is 28...Nf5 29.Qf5 Qh2–+) 29.Kd1?? (29.hg3 Qg3 30.Rf2 Qg1 31.Ke2 Qg4 32.Kd3 Qg6 33.e4 Qg3 34.Ke2 Qg4 35.Rf3 Qg2 36.Ke3=) 29...Qg1–+ 30.Ke2 Qh2 31.Kd3 Nf5 32.Qc5 Qh5 (32...Qh5 33.Rf1 Ng7 34.Qh5 Nh5–+) 0–1. Fournier,Frederic (1605) – antmonk, Active, 2007.

4.Nf3 e6 5.b5 (5.e3 a6=) 5...Nce7 (5...Na5 6.e3=) 6.e3 Ng6 7.Be2 (7.Nd4 Nh6=) 7...Nf6 (7...Nh4 8.0–0=) 8.Nd4 Ne7 (8...Nh4 9.Nf5 Nf5 10.0–0=) 9.0–0 h6 (9...Bg6 10.c4=) 10.Nf5+= ef5? (better is 10...Nf5!? 11.Bd3 Be7+=) 11.Bf6+/– gf6 12.c4 dc4 (12...f4 13.Bf3+/–) 13.Bc4+– Ng6 (13...Qd7 14.d4+–) 14.d4 Qd7 15.Nc3 0–0–0 16.Qb3 (16.Qf3 Kb8+–) 16...Rh7 17.a4 (17.Nd5 Qd6+–) 17...Bd6 (17...f4 18.b6 cb6 19.Nd5+–) 18.a5 Rg8 (18...Rg7 19.b6 Nh4 20.g3 cb6 21.Kh1+–) 19.a6 (19.g3 f4+–) 19...b6 20.Bd5 Ne7? (better is 20...Rhg7+–) 21.Bf7 Rgg7 (21...Rf7 22.Qf7 Bb4+–) 22.Be6 1–0. Wall,Bill – WarriorPrince, internet, 1999.

4.Nf3 f6!? =.

3.a3 f6

4.c4 =.

4.e3 e5 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Nc6).

3.a3 Nf6

(--> 1.b4 d5 2.Bb2 Nf6 3.a3 Nc6).

4.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 Nc6 4.a3).

4.e3 e6 5.Nf3 Be7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.Be2 Nc6).

4.e3 Bf5 5.Nf3 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.a3 Nc6).

4.Nf3 e6 5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 Nc6 5.Nf3).

3.a3 Bg4

4.f3 Bf5 5.e3 Nf6 6.Bb5 e6 (6...Qd6 7.Ne2=) 7.Ne2+= Qd7 (7...a6 8.Bc6 bc6 9.Nd4=) 8.0–0 (8.Bf6 gf6 9.Nd4 Bg6+=) 8...Bd6 (8...Be7 9.Nd4+=) 9.Nbc3 (9.Bf6 gf6 10.Nd4 Bg6+=) 9...a6 (9...e5 10.f4=) 10.Ba4 (better is 10.Bc6 Qc6 11.Nd4+=) 10...b6?? (10...b5 11.e4 de4 12.fe4 Ne4 13.Ne4 Be4 14.Bb3–/+ (14.Bg7?? Rg8–+)) 11.f4?? (11.Nd4 b5 12.Ncb5 Bh2 13.Kh2+–) 11...Bg4 (11...b5 12.Bb3=) 12.Qe1 (better is 12.h3 Bh5 13.g4+=) 12...a5?? (better is 12...b5 13.Bb3 0–0=) 13.Nd4+– Qd8 (13...b5 14.Bb5 Ra6 15.ba5+–) 14.Bc6 (better is 14.Nc6 Qd7 15.Ne5 Qa4 16.Na4 Bf5+–) 14...Ke7 (14...Nd7 15.Qg3 h5 16.h3+–) 15.Ba8 (15.Bd5!? Ke8 16.Bc6 Nd7 17.Ba8 Qa8+–) 15...Qa8 16.ba5 (16.Ncb5 c5 17.Nd6 Kd6 18.bc5 bc5 19.Nb5 Ke7+–) 16...ba5 17.Rb1 Rb8 18.Ncb5 c5 19.Nd6 (better is 19.Nf3!? Rb7+–) 19...cd4 20.Bd4 (better is 20.h3 Bh5 21.g4 Bg4 22.hg4 Kd6 23.f5+–) 20...Kd6 (20...Rb1 21.Qb1 Kd6+–) 21.Be5 (better is 21.Rb8 Qb8 22.Be5 Kc6 23.Bb8 Nd7+–) 21...Ke7 22.Rb8 Qa6 (22...Qc6 23.Qh4 Be2 24.Rfb1+–) 23.Bf6 (better is 23.Qh4 Kd7 24.Rfb1+–) 23...Kf6 24.Qh4 Kf5 25.Qh7 (25.Qg5 Ke4 26.Qe5) 25...g6 If Black now would get f6 in, he might survive 26.Qf7 Ke4 27.Qg6 Bf5 28.d3 (28.Qf6 Qf1 29.Kf1 e5 30.Qe5) 28...Ke3 (28...Qd3 29.cd3 Ke3 30.Qg3 Kd4 31.Qf2 Kc3 32.Qe3 Bd3 33.Rc1) 29.Qg3 Kd2 (29...Kd4 30.Qf2 Kc3 31.Rb3) 30.Rf2 (30.Qf2 Kc3 31.Rb3) 30...Kc3 31.Rb3 (31.Qg7 e5 32.Qe5 d4 33.Qe1) 31...Kd4 32.Qg7 Kc5 (32...e5 33.Qe5 Kc5 34.Qc7 Kd4 35.Qc3 Ke3 36.Rb1 Qd3 37.Re1) 33.Qc7 Qc6 (33...Kd4 34.Qc3 Ke3 35.Rb1 Qd3 36.Re1) 34.Qc6 (34.Rc3 Kd4 35.Qe5) 34...Kc6+– 35.h4 (35.a4 Kd6+–) 35...Kd7 36.c4 (36.Rb7!? Kc6 37.Rg7 Kd6+–) 36...Ke7 37.c5 Kd7 38.h5 (38.d4 Kc7+–) 38...Kc6 39.d4 a4 40.Rb4 (40.Rb4 Bg4 41.Rfb2+–) 1–0. Vahl,Laurens – Welling,Wouter, Hengelo op U12, 1997.

4.Nf3 Nf6 =.

4.h3 Bh5 5.g4 Bg6 6.Bg2 f6 7.f4 (7.d4 e6=) 7...Qd6 (7...e5 8.f5 Bf7 9.Nc3=+) 8.e3 0–0–0 (8...e6 9.Nf3=+) 9.Nc3 (better is 9.b5 Nb8 10.Nf3=+) 9...f5 (better is 9...e6!?=+) 10.Nd5 (10.Bd5 e5 11.e4 fe4+=) 10...Bf7 (10...Nf6 11.Nc3+/–) 11.Nc3+/– e6 (11...e5 12.gf5 ef4 13.Nb5+/–) 12.Nge2 (better is 12.Nf3+/–) 12...g6?? (better is 12...Kb8+/–) 13.Nb5+– Qd7 (13...Qe7 14.Bh8 Qh4 15.Kf1+–) 14.Bc6 (better is 14.Bh8 Kb8+–) 14...Qc6 (14...bc6 15.Na7 Kb7 16.Bh8 Ka7+–) 15.Na7 (15...Kd7 16.Nc6 (16.Bh8?! Qh1 17.Kf2 Qh2 18.Ke1 Qh3=) 16...Kc6 17.Bh8+–) 1–0. HMBCHESS2 – TOLOSA16, Live Game Caissa's Web, 2005.

3.b5 Na5

4.a3 Nc4=+ 5.Bc3 d4 (5...Nf6 6.e3=+) 6.e3= Nb2?? (better is 6...dc3 7.Bc4 cd2 8.Nd2 Nf6=) 7.Bb2+– 1–0. Wall,Bill – Corvette, internet, 2003.

4.Na3 a6 5.e3 (5.ba6 Ra6 6.e4 Re6=) 5...e6 (5...ab5 6.Nb5 c6 7.Nd4=+) 6.c4 (6.ba6 b6 7.Nf3=) 6...Ba3 (6...Nc4 7.Nc4 dc4 8.ba6 Ra6 9.Bc4=) 7.Ba3 (better is 7.Bg7 Nc4 8.Bh8 ab5 9.Qb3+/–) 7...Nc4–/+ 8.Bc4 (8.ba6 Ra6 9.Bb4 e5–/+) 8...dc4 9.Qg4 (9.ba6!? Ra6 10.Bb2–/+) 9...Qf6–+ 10.Rb1 ab5 11.Bb2 e5 12.Qe4 Bf5 13.Qb7 Qd8?? 14.Ra1 Rb8 15.Qc6 Bd7 16.Qe4 f6 17.Nf3 g6?? 18.0–0 Qe7 19.Rfe1 Qe6 20.a3 Bc6 21.Nd4 Qd6?? 22.Nc6+– Rb6 23.Na7 c6?? 24.Nc8 Qd5 25.Qd5 cd5 26.Nb6 d4 27.ed4 Kd8 28.de5 f5 29.e6 h5 30.Bh8 (30...Kc7 31.Nd5 Kd6 32.e7 Ne7 33.Ne7+–) 1–0. 1805DYDIDIDY – Bernd, mySchach.de, 2005.

4.Na3 e5 5.Be5 d4 6.Qc1 =.

4.Na3 Nf6 5.e3 e5 6.Be5? (better is 6.Nf3 Bd6 7.Be2+=) 6...Ba3–+ 7.Nf3 (7.Qf3 Bd6 8.Bf6 Qf6 (worse is 8...gf6 9.Qd5 Qe7 10.Nf3–/+) 9.Qf6 gf6–+) 7...Nc4 8.Bc3 Bg4 9.Be2 Qd7 10.Ne5 Be2 (10...Ne5 11.Be5 Be2 12.Qe2–+) 11.Qe2 (11.Nd7 Bd1 12.Nf6 gf6 13.Rd1 Bd6–+) 11...Ne5 12.Be5 Be7 13.c4 0–0 14.0–0 Qg4 15.Qg4 Ng4 16.Bc3? (better is 16.Bg3–+) 16...dc4 17.Rab1 Bf6 18.Bf6 Nf6 19.Rbc1 Ne4 20.Rfd1 Rad8 21.Rc4 Rd2?? 22.Rd2 Nd2 23.Rc7 g6 24.Rb7+= Ra8 25.a4 Nc4 26.Rd7? Nb6 27.Rd4 Rc8 28.g3 Rc4 29.Rc4 Nc4 30.Kf1 f5 31.Ke2 Kf7 32.Kf3 Ke6 33.e4? Ke5 34.ef5 Kf5 35.g4 Ke5 36.Kg3 Kf6 37.f4 Nd6 38.g5 Kf5 39.Kf3 Nb7 40.h3 Na5 41.Ke3 Nc4 42.Kf3 Nd2 43.Ke3 Nc4 44.Kf3 Nb6 45.a5 Nd5 46.h4 Nf4 47.b6 ab6 48.ab6 Nd3 49.b7 Ne5 50.Kg3 Nd7 51.Kf3 Nb8 52.Kg3 Nc6 53.Kf3 Nb8 54.Kg3 Nd7 55.Kf3 Nb8?? 56.Kg3= ½–½. Valpa – Coca, playchess.de, 2002.

4.a4 a6 5.e3 ab5 6.ab5 c6 (6...Nf6 7.Nf3=) 7.Nf3+= f6 8.bc6 bc6 9.Nd4 Bb7 (better is 9...Bd7!?=) 10.Ne6+/– Qd7 (10...Qc8 11.Nf8 Kf8 12.d4+/–) 11.Nc5 Qd6?? (better is 11...Qc7 12.Bc3 Nc4+/–) 12.Nb7+– Qb4 13.Na5 Qb2 14.Nc3 Qb4 (14...Qb6 15.Nc4 Ra1 16.Nb6 Rd1 17.Nd1 e5+–) 15.Nc6 Ra1 16.Qa1 Qb7 17.Bb5 Kf7 18.0–0 e6 19.Rb1 Ne7 20.Ne7 Qe7 21.Bc6 Kg8 22.Rb7 Qd6 23.Qa4 h5 24.Rd7 Qb8 25.Qa7 Qa7 26.Ra7 Kh7 Bd7 e5 28.Bf5 Kh6 29.Be6 Bc5 30.Nd5 Ba7+= 31.Nc3 Rd8 32.d3 Rc8?? 33.Nb5 Rc2–/+ 34.g3 Bc5 35.Bf5? g6 36.Be6–/+ Kg5 37.h4 Kh6 38.d4 ed4 39.ed4 Bd6?? 40.Nd6+– Kg7 41.d5 f5 42.Nb7 Rc7 43.Nd6 Kf8?? 44.Nf7 Ke7?? 45.Ne5 Kf6 46.Kg2 Ke5=+ 47.Kf3 Rc3 48.Kg2 Rd3 49.Bf7 Kf6 50.Bg8 g5 51.hg5 Kg5 52.Be6 f4 53.gf4 Kf4 54.Bf7 h4 55.Be6 Ke5 56.Kh2 Kf4 57.Kg2 Rd2 58.Bd7?? Rd5–+ (58...Rd5 59.Be6 Rd6–+) 0–1. tanto (1715) – leventk, net–chess.com, 2002.

4.a4 Nc4 5.Qc1 e5 6.Na3 (6.e4 Nb2 7.Qb2 de4 8.Qe5 Qe7 9.Qe7 Be7–/+) 6...Na3 (6...Nb2 7.Qb2 Qf6 8.Nf3–/+) 7.Ba3=+ Ba3 8.Qa3 Nf6 9.e3 b6 (9...Ng4 10.h3 Nf6 11.Qc3=) 10.g3 (10.a5 e4=) 10...Ne4 (10...a6 11.a5 ab5 12.Bb5 Bd7 13.Bd7 Qd7 14.Qb2 ba5 15.Qe5 Qe7 16.Nf3=+) 11.d3 Nc5 12.Bg2 Bg4 13.f3 Bf5=+ 14.Ne2 0–0 15.0–0 Qg5 16.f4+= ef4 17.ef4 Qe7 18.d4 Bc2?? 19.dc5 Qc5?? 20.Qc5+– bc5 21.Rfc1 Bd3 22.Nc3 Rad8 23.Re1 d4 24.Be4?? dc3–/+ 25.Bd3 Rd3 26.Ra3 Rfd8–+ 27.Kg2 Rd2 28.Kh3 c2 29.Rc3?? Rd1 0–1. tanto – heyuneverno (1605), net–chess.com, 2001.

4.a4 Nc4 5.Bc3 d4 6.e3 dc3 7.Bc4 cd2 8.Nd2 e6 9.Ne2 g6 10.Ne4 Bg7 11.Qd8 Kd8 12.0–0–0 Ke7 13.Rd3 Nf6 14.Nf6 Bf6 15.Rhd1 Kf8 16.Nc3 Kg7 17.Ne4 Be5 18.f4 Bf6 19.Nf6 Kf6 20.Kb2 (20.e4 a6+/–) 20...b6 21.e4 Bb7 22.e5 Kf5 23.Rd4 Bg2? (better is 23...g5 24.Bd3 Kg4 25.fg5 Kg5+–) 24.h3! Bh3 (24...Bh3 25.Rg1 Mate attack) 25.Rg1 Bg4 (25...Bg2 26.Rg2 h5 27.Bd3) 26.Bd3 1–0. Speedy – wernt, internet, 2017.

4.a4 Nc4 5.Bc3 e5 6.d3 Nd6 7.Be5 Qg5 (7...Nf6!?+=) 8.Nf3+/– Qf4?? (better is 8...Qh5+/–) 9.Bf4+– Nf5 10.e4 Nfe7 11.Bc7 Bg4 12.h3 Bh5 13.g4 Bg6 14.Nc3 Nf6 15.g5 de4 16.gf6 ef3 17.Qf3 Nc6 18.bc6 (18.bc6 Bb4 19.cb7+–) 1–0. Fritz11 – jumbo, casual, 2013.

4.a4 c6 5.e3 cb5 6.ab5 Nc4 7.Bc4 dc4 8.Qe2 (8.Nf3 Nf6+=) 8...Nf6 (better is 8...Qd5!? 9.Nf3 Qb5=+) 9.Qc4+/– Be6 10.Qa4 b6 (10...Bd5!? 11.f3 Be6+/–) 11.Nf3 Bd5 12.Nd4 (better is 12.d3!?+–) 12...Bg2= 13.Rg1 Be4 (13...Bb7 14.Nc6 Qd7 15.Nc3=) 14.d3 Bf3?? (better is 14...Bb7+/–) 15.Nf3+– e6 16.Nbd2 Bc5 (16...h6 17.Nc4+–) 17.Ne5 (better is 17.Rg7 Bf8 18.Rg2+–) 17...0–0 (17...Bf8+–) 18.Nc6 Qd6 19.Bf6 (19.Rg7 Kh8 20.Bf6 Qd4 21.Qd4 Rg8 22.Rg5 Rg7 23.Bg7 Kg8 24.Bh6) 19...Qd7 20.Rg7 Kh8 21.Rf7 (21...Kg8 22.Rd7 Rf6 23.Qh4 Be7 24.Ne7 Kf7 25.Ng8 Kf8 26.Qf6 Kg8 27.Qg7; 21.Rg6) 1–0. Grits – BeCarefool, Live Game Caissa's Web, 2004.

4.a4 e5 5.Be5 Bd6 6.Bg7 f6 (6...Be5 7.Be5 f6 8.Bc3+–) 7.Bh8 Be5 (7...Nh6 8.e3 Ke7 9.Bg7+–) 8.c3 (8.d4 Bd6 9.e4 Qe7 10.Qh5 Kd8 11.Qd5 Be6+–) 8...d4 9.e3 Be6 10.Qh5 Bf7 11.Qh7 dc3 12.Nc3 Nb3 13.Rd1 Qd7 14.Nf3 0–0–0 15.g3 Bc3 16.Bh3 Nd2 17.Bd7 Rd7 18.Nd2 Bd5 19.Qg6 Ne7 20.Qe8 Rd8 21.Qd8! Kd8 22.Ke2 Bh1 23.Rh1 Nd5 24.Rd1 Bb2 25.Nc4 Bc3 26.Rd5 (26.Rd5 Ke7 27.Kd3+–) 1–0. tanto – jkramer, net–chess.com, 2001.

4.a4 e5 5.Be5 Bf5 6.Bc3 c6 (6...c5 7.bc6 Nc6 8.e3+=) 7.Nf3 cb5 (7...c5 8.d4+/–) 8.ab5+/– b6 (8...Nc4 9.e3+/–) 9.Nd4 (better is 9.e3+–) 9...g6?? (better is 9...Bg6+–) 10.Nf5 gf5 (10...Nf6 11.Nd4 Ne4+–) 11.Bh8 1–0. Wall,Bill – Rgwrw, internet, 1999.

4.d3 a6 5.ba6 ba6 6.Nd2 Nc6 7.c4 d4 8.g3 e5 9.Bg2 Bb7 10.Qa4 Nge7 (10...Qd7!?=) 11.Ba3 Qd7 12.Nb3 Rb8? (better is 12...Na5! 13.Qd7 Kd7 14.Nc5 Kc8 15.Nb7 Nb7+=) 13.Nc5+– Qc8 14.Nb7 Qb7 15.Be7 Qb2 (15...Ke7 16.Bc6 Qb2 17.Rd1+–) 16.Qc6 (16.Bc6?! Ke7 17.Qd1 Rb6+–) 16...Ke7 17.Qc7 Kf6 1–0. Chirica,Bogdan – Merchez,Laviniu, Centrocoop June op–A, 1999.

4.d3 a6 5.ba6 Ra6 6.g3 Bf5 7.Bg2 e6 8.Nf3 Nf6 9.0–0 Bd6 10.Nbd2 0–0 11.Nd4 Be5 12.f4 Bd4 13.Bd4 Nc6 14.Nb3 Nd4 15.Nd4 c5 16.Nf5 ef5 17.c4 Ng4 18.Qb3 (18.Bd5!? Ne3 19.Qb3–/+) 18...dc4–+ 19.Qb7? (better is 19.Qc3 cd3 20.ed3–+) 19...Qd4 20.Kh1 Re6 (20...Nf2 21.Rf2 Qa1 22.Rf1 Qa2 23.dc4 Qc4 24.Bf3–+) 21.Qf3 (better is 21.Bf3 Nf2 22.Kg2 cd3 23.ed3 Nd3 24.a4–+) 21...Rd8 22.e4 (22.dc4 Re3 23.Qb7 Re2 24.Qf3 Nf2 25.Kg1 Ne4 26.Kh1–+) 22...Qd3 (better is 22...Rh6 23.h4 cd3 24.ef5 Ne3–+) 23.ef5–/+ Qf3?? (better is 23...Qf5 24.Rad1 Ree8 25.Rd8 Rd8–/+) 24.Bf3+– Nh2 25.fe6 Nf1 26.ef7 Kf7 27.Rf1 Rd2 28.a4 c3 29.a5 Ra2?? (29...Kf6 30.Ra1 Rb2 31.Bd1+–) 30.Rc1 (better is 30.Bd5 Ke7 31.Ba2+–) 30...Ra5 31.Rc3 Kf6 32.Be4 g6 33.Kg2 h6 34.g4 g5 35.fg5 hg5 36.Kf3 Ke5 37.Rc4 Ra3 38.Ke2 Rg3 (38...Ra2 39.Kd3 Kd6+–) 39.Rc5?? (better is 39.Bf3 Kd6 40.Rc1+–) 39...Ke4= 40.Rg5 Kf4 41.Rg8 Rg4 ½–½. oddbins – hardcoremachine, gameknot.com, 2013.

4.d3 b6 5.g3 Nb7 6.Bg2 e6 7.Nf3 Bd7 8.c4 Nf6 9.0–0 c6 10.Ne5 cb5 11.Nd7 Qd7 12.Bf6 gf6 13.cd5 ed5 (13...Rc8!?+=) 14.Nc3+/– 0–0–0 (better is 14...d4!? 15.Nd5 Bg7+/–) 15.Nd5+– (15.Bd5?! b4 16.Bb7 Kb7+=) 15...Bg7 (15...Kb8 16.Rb1+–) 16.Qc2 (16.Rc1 Kb8+–) 16...Kb8 17.Rfc1 Rc8 18.Qd2 f5 19.Rab1 Nc5?? (19...Rhe8 20.Nb4 Nc5 21.Qf4 Be5 22.Qf3+–) 20.Nb4 (better is 20.Qf4 Rc7 21.d4 Bd4 22.Qd4 Rd8+–) 20...a5? (better is 20...Qd6+–) 21.Rc5! Rc5 (21...bc5 22.Na6 Double attack; 21...Rc5 22.Na6 Double attack (22.Na6 Decoy)) 22.Na6 Ka7 23.Nc5 bc5 24.Qa5 Kb8 25.Rb5 Kc8 26.Rc5 Kb8 27.Qa8 1–0. jboger (2210) – geldridge (2255), net–chess.com, 2013.

4.d3 c6 5.a4 Nf6 6.Nd2 Qc7 7.Ngf3 Bf5 8.e3 Nd7 9.Be2 e5 10.0–0 Bd6 11.Nh4 Bg6 (11...Be6 12.Bg4=) 12.g3 (12.c4 e4 13.de4 Bh2 (worse is 13...Be4 14.f4+/–) 14.Kh1 A) worse is 14...Be4 15.cd5 cd5 16.Ne4 de4 17.g3+/– (17.Bg7?! Rg8 18.Rc1 Qd8+/–); B) 14...de4=) 12...0–0 13.Ng6 hg6 14.Rc1 c5 (14...Rfd8 15.d4=) 15.c3 b6 (15...a6!?=) 16.Bf3+/– Nf6 17.e4 (17.c4 a6+/–) 17...d4 (better is 17...c4!? 18.ed5 cd3+=) 18.cd4+/– ed4 (18...Rfd8 19.Bg2 Qe7 20.dc5 Bc5 21.Nf3+–) 19.Bd4! Be5 (19...cd4 20.Rc7 Pinning (20.Rc7 Deflection)) 20.Be5 Qe5 21.Qc2 Rad8 22.Be2 Qe6 23.Kg2 Nh7 24.Nf3 Nb3 25.Rcd1 Nd4 26.Nd4 Rd4 27.f4 Rfd8 28.e5 Qd7 29.h4 c4? 30.dc4+– Rd2 31.Rd2 Qd2 32.Rc1 Nf8 33.Kf3 Ne6 34.Qd2 Rd2 35.Ke3 Ra2 36.Bd1 Ra3 37.Kf2 Nc5 38.Kg2 Nd3 39.Rb1 Ne1 40.Kh3 Nd3 41.Bb3 Nf2 42.Kg2 Ne4 43.Rb2 Kf8 44.g4 Nc5+/– 45.Bc2 Rc3 46.g5 Rc4 47.Kg3 Ne6 48.f5 Rc3 49.Kg4 Rc4= 50.Kg3 ½–½. Bartle,Georg (1680) – Iken,Meindert, Wch Seniors, 2003.

4.d3 Bd7 5.a4 c6 6.Qd2 b6 7.e4 Nf6 8.e5 Ng4 9.h3 (better is 9.Nf3=) 9...Ne5 (better is 9...Nh6=) 10.Be5+– cb5 11.ab5 Nb7 (better is 11...Bb5 12.Nf3 f6+–) 12.d4 Nd6 (12...e6 13.Bd3+–) 13.Bd6 ed6 14.Nc3 Be6 15.g3 Qe7 (15...Qd7 16.Bg2 Rc8 17.Qd3+–) 16.Bg2 (16.Nge2 Rc8+–) 16...Bh3 (16...Qb7 17.Nge2+–) 17.Kf1 Bg2 18.Kg2 0–0–0 (18...Qb7 19.Qg5 Be7 20.Qg7+–) 19.Nf3 Qe6 (19...Qb7+–) 20.Ra7 f5 (20...g5 21.Nd5! Kb8+–) 21.Rha1 Rd7 22.Ra8 Kb7 23.R1a7# 1–0. nordlicht – Master1, Kleines Blitz–Turnier, 2004.

4.d3 e6 5.Nf3 Nf6 6.e3 c5 7.Be2 Bd6 8.c4 Bd7 9.Nc3 a6 10.a4 0–0 11.0–0 b6 12.Nd2 d4 13.ed4 cd4 14.Na2 (14.Nce4 Ne4 15.Ne4 Bf4=) 14...e5 15.Bf3 Ra7 16.Nc1 Bf5 17.Ndb3 Nb3 18.Nb3 Bc5 (better is 18...Bb4!?+=) 19.Nc5= bc5 20.Bc6 e4 21.Re1 ed3 (21...Re7 22.a5=) 22.Re5+= Bd7 23.Rc5 ab5 24.cb5 (24.ab5?! Ra1 25.Ba1 Re8=) 24...Ra5? (better is 24...Bc6!? 25.bc6 Ne4+–) 25.Bd7 Qd7 26.Qd3 Rd8 27.Rc4 Qg4 (27...Re8 28.Bd4 Raa8 29.Rd1+–) 28.f3 (28.Rd4 Rd4 29.Qd4 Qd4 30.Bd4 Ne4+–) 28...Qf4 29.Bc1 Qd6 30.Bd2 Ra7 31.Bb4 Qd5 32.b6 Ra6 33.Bc5 Nd7 34.Bd4?? Nb6?? 35.Rb4+/– Nc8?? 36.Qa6+– Ne7 37.Rc4 h6 38.Qb5 Qb5 39.ab5 Nd5 40.b6 Rb8 41.b7! Rb7 42.Ra8 Kh7 43.h4 Rb6 44.Bb6 Nb6 45.Rac8! Nc4 46.Rc4 g6 47.Kf2 h5 48.f4 f5 49.g3 Kg7 50.Ke3 Kf6 51.Rc6 Kf7 52.Kd4 Kg7 53.Ke5 Kf7 54.Rf6 Kg7 55.Ke6 Kh7 56.Kf7 Kh6 57.Rg6 Kh7 58.Rg5 Kh6 59.Rf5 Kh7 60.Rh5 1–0. Vaast,Jean – Cazal,Vincent, Reunion op St Denis, 2008.

4.d3 Nf6 5.Nf3 Bg4 (5...a6 6.a4=) 6.Ne5 Qd6 (6...Bf5 7.Qd2 c5 8.Bc3=) 7.Qd2+= b6 8.f4 (8.e4 a6+=) 8...e6 (8...a6 9.e4=) 9.Ba3 (9.e4 a6 10.Ng4 Ng4+=) 9...c5 10.bc6 Qc7 11.Bf8 Kf8 12.Qb4 (12.h3 Bh5+=) 12...Kg8= 13.Na3 (13.h3!? Bf5 14.g4=) 13...Nc6=+ 14.Qc3 Rc8 15.Nb5 Qb7 (15...d4!? 16.Qc6 Qc6 17.Nc6 Rc6+/–) 16.Nd6+/– Qc7?? (better is 16...Ne5 17.Nc8 Ng6+/–) 17.Nc8+– Qc8 18.Qc6 Qd8 19.e3 g6 20.h3 Bf5 21.g4 Bd3 22.Bd3 Kg7 23.h4 Qb8 24.g5 Rc8 25.gf6 Kf6 26.Nd7 (26...Kg7 27.Nb8 Rc6 28.Nc6+–) 1–0. Fredek (2090) – Guest489968, Freundschaftspartie, 5m + 0s, 2005.

4.e3 Qd7 5.d3 (better is 5.Nf3!?=) 5...Qb5–/+ 6.c4?? (better is 6.Be5–/+) 6...Qb2–+ (7.Nd2 dc4 8.dc4 e5–+) 0–1. edfdo – TREA, Live Game Caissa's Web, 2004.

4.e3 f6 5.Be2 a6 6.ba6 ba6 7.Nf3 Nh6 8.0–0 e5 9.d4 e4 10.Nfd2 Bb4 11.c4 Bd2 12.Nd2 0–0 13.cd5 Qd5 14.Ne4 Qe4 15.Bf3 Bg4 16.Be4 Bd1 17.Ba8 Be2 18.Bd5 Kh8 19.Rfc1 c6 20.Bc6 Rc8 21.Bd5 Rd8 22.Rc5 Rb8 23.Bc3 Nb7 24.Rb1 Bb5 25.Rbb5 ab5 26.Rb5 Ra8 27.Rb7 Ra3 28.Rb8 1–0. Machete99 – guest756, ICC, 2002.

4.e3 f6 5.f4 Qd6 6.Ba3 Qb6 (6...Qe6 7.Nf3+=) 7.Nc3 Nc4?? (better is 7...c6+=) 8.Nd5+– Qa5 (8...Na3 9.Nb6 ab6 10.Nf3+–) 9.Bb4 Qa4 10.Bc4 (10.Bc4 Be6 11.Bb3 Bd5 12.Ba4 Bg2 13.b6 c6 14.Bc6 Bc6 15.Nf3+–) 1–0. Janek – Andrew, internet, 2016.

4.e3 Nf6 (--> 1.b4 Nf6 2.Bb2 Nc6 3.b5 Na5 4.e3 d5).

4.Nf3 b6 5.e3 Bb7 6.Be2 c6 7.a4 e6 8.0–0 Nf6 9.Re1 g6 (9...Bd6 10.Bc3=) 10.d3 Bg7 11.Nbd2 0–0 12.Ba3 (12.Be5 a6+=) 12...Re8 13.Rb1 Qc7 14.Nb3 Nb3 15.Rb3 a6 16.bc6 Qc6 17.Rb4 a5 18.Rh4 Rac8 19.Nd4? (19.c4 e5=) 19...Qc3?? (19...Qa4 20.Qa1 b5 21.c3–+) 20.Qa1?? (better is 20.Nb5 Qc2 21.Nd6 Qd1 22.Bd1= (worse is 22.Rd1 Rc2–/+)) 20...Qa1–+ 21.Ra1 e5 22.Nb5 (22.Nf3 Rc2 23.Bd1 Rc6–/+) 22...Rc2–+ 23.Bd1 Rd2 24.d4 (better is 24.Nd6 Rb8 25.Rc1–+) 24...ed4?? (better is 24...g5 25.de5 Ne4–+) 25.Rd4–/+ Rd4 26.Nd4 Rc8 27.Rc1 Rc1 28.Bc1 Nd7 29.Bf3 (29.Ba3 Ne5–/+) 29...Bh6 (29...Nc5 30.Bd1–/+) 30.Nb5 (30.Be2!?+=) 30...Nc5–/+ 31.Nc3 (better is 31.Nd6 Ba8 32.Nc8 Na4 33.Ne7 Kf8 34.Ba3–+) 31...Ne6?? (better is 31...d4 32.ed4 Bc1 33.dc5 Bf3 34.gf3 bc5–+) 32.Nd5+= Bd5 33.Bd5 Nd4 (33...Nc5!? 34.Bc6 Nd3+=) 34.Bb2+/– Ne6 35.Be6 fe6 36.Bd4 Kf7 (better is 36...Bf8!? 37.Bb6 Bb4+–) 37.Bb6+– Kf6 38.Ba5 1–0. Nikolova,Angelika – Karov,Aleksandar, 10th Sofia Bulgaria, An Pasan Open, 2015.

4.Nf3 c6 5.e3 (--> 4.e3 c6 5.Nf3).

4.Nf3 Bd7 5.e3 a6 6.d4 (better is 6.ba6 ba6 7.Nc3+=) 6...ab5–/+ 7.Nc3 Nc4 (7...c6 8.Ne5–/+) 8.Bc4 bc4 (8...dc4!? 9.0–0 b4–/+) 9.Nd5= e6 10.Nc3 (10.Nf4 Bb4 11.c3 Bd6=) 10...Bb4 (10...b5 11.a3=) 11.0–0 (11.Ne5 Nf6=) 11...Nf6 12.Qe2 (12.Ne5 b5=) 12...b5 13.e4 (13.a4 Bc3 14.Bc3 Ne4+=) 13...Bc6 (13...Be7!?=) 14.d5+= White gets the initiative 14...Bd7 15.Rfd1 (15.de6 fe6 16.Rfd1+=) 15...0–0 16.de6+/– fe6 17.Nb5!+– Qb8 18.Nbd4 c3 19.Bc1+/– c5 20.Nb3 Bb5 21.Qe3 c4 22.Nbd4+– Rd8 23.Qe2 Ba3?? 24.Ba3+– Ra3 25.e5 Ne8 26.Ng5 Rd7 27.Qe4 g6 28.Nge6 Ng7 29.Ng7 Rg7 30.Qd5 Kh8 31.Qb5 (31...Rg8 32.e6+–) 1–0. coloplayah (1925) – mgoodrich (1930), net–chess.com, 2005.

4.Nf3 Bd7 5.e3 c6 6.bc6 Nc6 7.d4 (7.c4 e6=) 7...e6 8.Nbd2 Bb4 (8...Nf6 9.c4=) 9.a3 Ba5 10.Bd3 Qb6 11.Rb1 Bd2 (11...Qc7 12.0–0+=) 12.Qd2 Nf6 13.a4 (13.0–0 Qd8+=) 13...Qc7 (13...Nb4 14.0–0 Nd3 15.cd3 Ba4 16.Ba3=) 14.Ba3 Qa5 (14...Ne4!? 15.Be4 de4=) 15.Rb7+/– Qa4 16.Bd6 (16.Qc3 Qa5 17.Qa5 Na5+/–) 16...Qa1 (16...Ne4 17.Be4 de4 18.Ne5 Ne5 19.de5 Qa1 20.Qd1 Qc3 21.Kf1+=) 17.Qd1+= Qc3 (17...Qd1 18.Kd1 a5 19.Ke2+=) 18.Nd2+/– Bc8 (18...Na5 19.Rc7 Qb2 20.Nb3+/–) 19.Rc7 a5 (19...Bd7!?+/–) 20.Bb5+– Bd7 21.0–0 a4? (better is 21...Qb2 22.c4 Nb4+–) 22.Bc6 Bc6 23.Re7 Kd8 24.Rf7 a3 25.Nb3 Ba4?? 26.Nc5 Bc2 27.Ne6 Kc8 28.Qa1 Qb2 29.Qb2 ab2 30.Rc7 Kb8 31.Rc2 Kb7 32.Rb2 Kc6 33.Bc5 Ne4 34.Rb6 Kd7 35.Ng7 Nd2 36.Rd6 Kc8 37.Rc1 Nb3 38.Rd1 Rg8 39.Ne6 Nd2 40.h3 Nf3 41.Kf1 Nh2 42.Kg1 Nf3 43.Kh1 Nh4 44.g3 Nf3 45.Rc6 Kd7 46.Rd6 Kc8 47.Rc1 Kb7 48.Rd7 Kc6 49.Rd6 Kb7 50.Rd7 Kc6 51.Rh7 Ra2 52.Rb1 Ra6 53.Rc7# 1–0. Ocampos,Ian Guido – Barrionuevo,Miguel, Buenos Aires Najdorf, 2004.

4.Nf3 Bd7 5.e3 e6 6.Bd3 Nc4 (6...Nf6 7.0–0=) 7.Bc4+= dc4 8.Nc3 Bb4 (8...c6 9.a4=) 9.Qe2+/– Bc3 (9...Nf6 10.Qc4 Bd6 11.e4+/–) 10.Bc3 Bb5?? (better is 10...Nf6 11.Qc4 a6+/–) 11.Bg7+– 1–0. pierre – tweif, internet, 2009.

4.Nf3 e6 5.e3 b6 6.Be2 Nf6 7.0–0 Bd6 8.d4 0–0 9.c3 Nc4 (9...a6 10.Na3+=) 10.Bc4 dc4 11.Qc2 Bb7 12.Nbd2 Qe7 (12...a6 13.e4 Bf4 14.a4=) 13.Nc4 Rae8 (13...Bf3!? 14.gf3 a6=) 14.Nd6 Qd6 15.c4 e5?? (better is 15...Bf3 16.gf3 Ra8+/–) 16.de5+– Re5 (16...Qc5 17.Bd4 Qa3 18.ef6+–) 17.Be5 (17.Be5 Qe6 18.Qc3+–) 1–0. Wall,Bill – Havelange,Ken, Thailand, 1974.

4.Nf3 Nf6 5.e3 (--> 1.b4 Nf6 2.Bb2 Nc6 3.b5 Na5 4.e3 d5 5.Nf3).

4.Nf3 Bg4 5.e3 Nf6 (--> 1.b4 Nf6 2.Bb2 Nc6 3.b5 Na5 4.e3 d5 5.Nf3 Bg4).

4.g3 Bd7 5.e3 c6 6.bc6 Bc6 7.d4 (7.Nf3 Nc4 8.Bc3 Nf6=) 7...e6 8.Nc3 Bb4 9.a3 Be7 10.Nf3 Nf6 11.Ne5 0–0 12.Bd3 Bd6 13.Nc6 Nc6 14.0–0 e5 15.de5 Ne5 16.Bf5 Bc7 (16...Nc4!? 17.Rb1 Nb2 18.Rb2 Be5=+) 17.Nb5+= a6 18.Nc7 Qc7 19.Bd4 g6 20.Be5 Qe5 21.Bd3 Qg5 22.c4 dc4 23.Bc4 Rad8 24.Qf3 b5 25.Bb3 Ng4 26.h3 Ne5=+ 27.Qb7 Qf5 28.g4 Ng4?? 29.hg4+– Qg4 30.Qg2 Qf5 31.e4 Qf4 32.Rad1 Rc8 33.Bd5 Rc3 34.Ra1 Qh6?? 35.Bb7 Rh3 36.Ba6 Rh5+/– 37.Bb7?? Rg5–+ 38.Qg5 Qg5 39.Kh1 Re8 40.f4 Qh4 41.Kg2 f5 42.e5 Rd8 43.Rf2 Rd3 44.e6? Rg3 45.Kf1 Re3 46.Bd5 Qf6 47.e7 Kh8 48.Rc1 Qd4 49.Rc8 –+. audrey – shado23, Live Game Caissa's Web, 2004.

4.d3 c5

5.a4 Nf6 6.g3 e6 7.Qd2 Bd6 8.Qg5 0–0 9.Bf6 Qf6 10.Qf6 gf6 11.Nd2 a6 12.e4 ab5 13.ab5 de4 14.Ne4 Be7 15.Nc3 Ra7 16.Bg2 e5 17.Nge2 Bd8 18.0–0 b6 19.f4 Bg4 20.h3 Bd7 21.g4 Re8 22.Be4 Be6 23.Nd5 Bd7 24.c4 Bc8 25.Nec3 Be6 26.f5 Bc8 27.Bf3 Bb7 28.Ne4 Bd5 29.cd5 Rf8 30.d6 h6 31.Rfe1 Rd7 32.Ra3 Ra7 33.Rea1 Rd7 34.R1a2 Kh7 35.h4 Kg7 36.Rf2 Rg8 37.Kg2 Re8 38.Re2 Ra7 39.Kg1 Rg8 40.h5 Re8 41.Nd2 Rd7 42.Ra5! ba5 43.Bc6 Rd6 44.Be8 Rd3 45.Kf1 Rd4 46.Ne4 Bb6 47.Bc6 Rc4 48.Rd2 Rd4 49.Rd4 cd4 50.Nd6 Kf8? 51.Nc4 Bd8 52.b6 Kg7 53.b7 Bc7 54.Na5!! Kf8 55.Be4 Ke7 56.Nc6 Kd7 57.b8B Bb8 58.Nb8 Kd8 59.g5! fg5 60.Nc6 Kc7 61.Ne5 f6 62.Nf7 Kd7 63.Nh6 Ke7 64.Ng4 Kf7 65.h6 Kf8 66.Nf6 Kf7 67.Ng4 d3 68.h7 d2 69.Ke2 Ke7 70.f6 Ke6 71.f7! Kf7 72.h8Q d1B 73.Ke3 Bg4+– 74.Bd5 Kg6 75.Qg8 Kf6 76.Kd4 Ke7 77.Qg5 Kd7 78.Qg4 Kd6 79.Qe6 Kc7 80.Qe7 Kb6 81.Qb7 Ka5 82.Kc5 Ka4 83.Qb4# 1–0. GLChess207e – Holmes01, computer chess game, 2000.

5.Nd2 Bd7 6.c4 b6 7.e3 e6 8.g3 Nf6 9.Bg2 Rc8 (9...Be7 10.Rb1+=) 10.Ngf3 g6 11.Ne5 Bg7 12.Qf3 0–0 13.Nd7 Nd7 14.Bg7 Kg7 15.cd5 Ne5 (15...Nf6 16.de6 Qd3 17.e7+=) 16.Qe4 (16.Qe2!?+/–) 16...Qd5+= 17.Qd5 ed5 18.Ke2 Rfd8 19.f4 Ng4 20.h3 Nf6 21.g4 c4 22.d4 (22.Rhc1 h6=) 22...c3= 23.Nb3 (23.Nb1 c2 24.Nd2 Rc3+=) 23...Nb3 24.ab3 Rc7 25.Kd3 Rdc8 26.g5 Ne4 27.Be4 de4 28.Kc2 f5 (28...h6 29.Ra4+=) 29.Ra4+= Kf7 30.Rha1 Ra8 31.Rc4 Rc4? (better is 31...Re7+/–) 32.bc4+– Ke6 33.Kc3 Kd6 34.Kb4 Kc7 35.c5 bc5 (35...Kb7 36.c6 Kc8 37.d5+–) 36.Kc5 (better is 36.dc5 Kb8 37.c6+–) 36...Kd7 37.Ra6 Rc8 38.Rc6 Ra8 39.d5 1–0. Marinc,D (2015) – Ivanov,Iliyan, 7th Georgiev – Kesarovski Mem, Sunny Beach, 2008.

5.e3 a6 6.ba6 Ra6 7.Nf3 =.

5.e3 d4 6.Nf3 (6.ed4 cd4 7.Nf3 Bg4+=) 6...Bg4 (6...de3 7.fe3 Bd7 8.Nc3+=) 7.Nbd2 (7.ed4 cd4 8.Nbd2 e5+=) 7...e6 (7...de3 8.fe3 Nf6 9.Be2=) 8.Be2 (8.ed4 cd4 9.Bd4 Qd4 10.Nd4 Bd1 11.Rd1 Bb4+/–) 8...Bf3 (8...de3 9.fe3 Nh6 10.e4+=) 9.Bf3 (9.Nf3 de3 10.fe3 Qb6+=) 9...Rb8 (9...Nf6 10.c4+=) 10.0–0 Bd6 (10...Nf6 11.Ne4+=) 11.Re1 (11.Ne4 Nf6+/–) 11...Qc7 (11...Nf6 12.ed4 cd4 13.c3+=) 12.Nf1 (12.ed4 Bh2 13.Kh1 Bf4 14.dc5 Nf6+–) 12...Nf6 (better is 12...Qb6!?+=) 13.ed4+/– 0–0 14.dc5 Qc5 (14...Bc5 15.Qe2+/–) 15.c4+– Qc7 (15...Rfd8 16.Bc3 Qa3 17.Qc1 Qc1 18.Rac1+–) 16.h3 (16.Bc3 Rfd8+–) 16...Rbd8 (16...a6 17.Bf6 gf6 18.Rb1+/–) 17.a3 (17.Bc3 Bc5 18.Qa4 b6 19.Bf6 gf6+/–) 17...Be7 (17...Bc5 18.Bf6 gf6 19.Ne3+/–) 18.Ne3 Rfe8 (18...Ne8 19.Rc1+/–) 19.Rc1 (19.Qa4 b6 (19...Rd3? 20.b6 ab6 21.Bf6+–) 20.d4 Qf4+–) 19...Qb8 (19...Bc5 20.Bf6 gf6 21.Ng4+/–) 20.Qc2 (20.c5 b6 21.c6 Qc7+–) 20...Rd7 (20...Qc7 21.Qa4 Bc5 22.Bf6 gf6 23.b6 Qb6 24.Rb1 Be3 25.Rb6 (worse is 25.fe3 Qc7+/–) 25...Bb6 26.d4+–) 21.Red1 (21.Qa4 b6 22.d4 Qf4+–) 21...Red8 (21...Qd8 22.Qa4 Bd6 23.c5+–) 22.Be2 (22.c5 b6 23.c6 Rc7+–) 22...b6 (22...Rc8 23.d4+/–) 23.d4 Nb7 (23...Qf4 24.Bd3+–) 24.Bf3+– Rc8 (24...Qf4 25.Qe2+–) 25.Bc6 (25.Qe2 Qc7+–) 25...Rdd8 26.Bc3 (26.d5 Nc5+–) 26...Ba3 27.Ra1 Bc5? (better is 27...Bd6+–) 28.dc5 Nc5 29.Bf6 (29.Rd8 Rd8 30.Bf6 gf6+–) 29...gf6 30.Rd8 (30.Rd8 Rd8 31.Qa2+–) 1–0. Fritz,Harry – Breite,Wilhelm, corr, 1966.

5.Nf3 a6 =.

4.e3 a6

5.a4 Nc4 6.Bc4 dc4 7.Qe2 (7.Nf3 Bg4= (7...Qd6 8.Na3 f6 9.0–0 Qb4+=) 8.h3 Bh5 9.Na3 Qd5=) 7...Be6 (7...ab5 8.ab5 Ra1 9.Ba1+= Qd5+=) 8.Qf3 (8.Nf3 Nf6 9.0–0 ab5+=) 8...Bd5 (8...ab5 9.ab5 Ra1=) 9.e4 Be6 10.Ne2 Qd6 11.Ba3 Qb6 12.Nbc3 ab5 13.ab5 c6 14.0–0 cb5 (better is 14...Rd8!?+/–) 15.Bc5!+– Qd8 (15...Qc5 16.Ra8) 16.Bb6!! Qc8 (16...Qb6 17.Ra8) 17.Qe3 (17.Nb5 Ra6 18.Nc7 Kd7 19.Na6 ba6+–) 17...Ra6? (better is 17...Ra1 18.Ra1 f5+/–) 18.Bd4?? (18.Nb5!? f6 19.Nc7 Kf7 20.Na6 ba6+–) 18...Qa8? (better is 18...b4 19.Na4 Nh6+=) 19.Nb5+– Ra1 (19...Qc8 20.Bb6 f6 21.Nc7 Kf7 22.Na6 ba6+–) 20.Nc7 (20.Ba1?! Qc8+/–) 20...Kd8 (20...Kd7 21.Ra1 Qd8 22.Bb6 Qc7 23.Bc7+–) 21.Na8 (better is 21.Ra1 Qa1 22.Ba1 Kc7 23.Qg3 Kd7 24.Qb8+–) 21...Ra8 22.Bb6 Ke8 23.Qc5 (23.Nc3 Rc8+–) 23...Rc8 24.Qb5 Bd7 25.Qb4 (25.Qd5!? Nf6 26.Qb7 e6+–) 25...e5 26.Qa5 Bd6 27.Ng3 (27.Nc3 Bb8+–) 27...Nf6 28.Nf5 Bc7?? (better is 28...Bf5 29.ef5 Ke7+–) 29.Bc7 Ne4 (29...Bf5 30.ef5 e4+–) 30.Qe5 Be6 1–0. guest945 – guest722, ICC, 1999.

5.a4 c6 6.Na3 Nh6 (6...Nf6 7.Nf3 Bg4 8.ba6 ba6 9.h3 Bf3=; 6...e6 7.Nf3 Nf6 8.Be2 Bd6 9.0–0 0–0=; 6...Bf5 7.Nf3 e6 8.Be2 Nf6 9.Nh4 Be4=; 6...ab5 7.ab5 f6 8.d4 Bf5 9.Nf3 e6=; 6...Qd6 7.Bc3 Qd8 8.Be2 Nf6 9.Nf3 Bg4=; 6...cb5 7.ab5 f6 8.ba6 ba6 9.Bd3 Nh6=; 6...f6 7.f4 Bf5 8.Nf3 e6 9.Be2 Bb4=; 6...b6 7.Nf3 f6 8.d4 e6 9.Bd3 Bb4=; 6...c5 7.Be2 f6 8.f4 Bf5 9.Nf3 e6+=) 7.Nf3 f6 8.d4 Bf5 9.ba6 ba6 =.

5.a4 c6 6.c4 Nc4–/+ 7.Bc4 dc4 8.bc6 bc6 9.Nf3 Nf6 (9...Rb8 10.Qc1–/+) 10.Nc3 (10.Na3 Rb8 11.Nc4 Be6 12.Bf6 ef6+=) 10...e6 (10...Bg4 11.Qe2 Rb8 12.Ba3+=) 11.Qe2 Rb8 12.Rb1 Bb4 13.0–0 (13.Qc4 c5=) 13...Bc3 (better is 13...Qd3!?+=) 14.Bc3+= Bd7? (better is 14...Rb1!? 15.Rb1 Qd3 16.Qd3 cd3+=) 15.Qc4 0–0 (15...Ra8 16.a5+/–) 16.Qa6 (16.Rb8 Qb8 17.Bf6 gf6 18.Qa6 c5+–) 16...c5 17.Qc4 Qc8 (17...Ra8 18.Ra1+/–) 18.Ne5 Ra8 19.Nd7 (19.a5 Nd5+–) 19...Qd7 20.a5 Ne8 (better is 20...Rfc8+–) 21.Qc5 Nd6 (21...Qd3 22.Qe5 Rd8 23.Rb3+–) 22.Qd4 Qc6 (22...f6 23.Rb6 Rfd8+–) 23.Qg7 1–0. Fournier,Frederic (1875) – manuelbels (1795), Active, 2004.

5.a4 c6 6.Bd4 e6 (6...Nh6 7.Nf3 f6 8.Bc5 e5 9.Bf8 Rf8=) 7.Nf3 f6 8.Bc3 e5 9.d4 e4 =.

5.a4 c6 6.Be2 cb5 7.ab5 Nc4 8.Bc3 Nf6 9.Nf3 Bg4 =.

5.a4 c6 6.Nf3 cb5 7.ab5 ab5 (7...Nf6 8.Ra4+=) 8.Bb5 (8.Ne5 Bd7 9.Nd7 Qd7+/–) 8...Bd7 9.Bd7 Qd7 10.Ne5 Qd6? (10...Qb5 11.Bd4 e6 12.Nc3+/–) 11.Qe2 Qb6 12.Bd4 Qc7?? 13.Qb5 Kd8 14.Nf7 Kc8 15.Qe8 Qd8 16.Qd8# 1–0. mtr – Miki, littlegolem.net, 2009.

5.a4 c6 6.Nf3 Nf6 7.Be2 Bg4 8.ba6 ba6 9.Bf6 ef6 =.

5.a4 Bf5 A) 6.Nf3 Nf6 (6...e6 7.ba6 ba6 8.Be2 Ne7 9.0–0 c5=; 6...Nc4 7.Bc4 dc4 8.Na3 Qd5 9.ba6 ba6+=) 7.Nc3 e6 8.ba6 ba6 9.Nh4 Bg4=; B) 6.Bc3 c5 (6...c6 7.Nf3 Nf6 8.Be2 Ne4 9.0–0 c5=) 7.Nf3 Nf6 8.d3 e6 9.Qd2 b6=; C) 6.Nc3 e6 (6...e5 7.Nf3 d4 8.ed4 ed4 9.Ne2 d3=; 6...ab5 7.ab5 e6 8.Nf3 Nf6 9.Be2 Bg4=) 7.ba6 ba6 8.Nf3 c5 9.Rb1 Nf6=; D) 6.Be2 e6 (6...Nf6 7.ba6 ba6 8.Nf3 c5 9.0–0 e6=; 6...Nc4 7.Bc4 dc4 8.Qf3 Qc8 9.e4 Bg6=; 6...f6 7.ba6 ba6 8.d4 e6 9.Nf3 Bb4=; 6...Be4 7.f3 Bf5 8.ba6 ba6 9.Nc3 e6=) 7.ba6 ba6 8.Nf3 c5 9.0–0 Nc6=; E) 6.ba6 ba6 7.Nf3 c5 8.Na3 Nf6 9.Be2 Nc6=.

5.a4 Nf6 A) 6.Nf3 Bf5 (6...Bg4 7.h3 Bh5 8.ba6 ba6 9.g4 Bg6=; 6...e6 7.Be2 Bd6 8.0–0 0–0 9.Be5 b6=) 7.Nc3 e6 8.ba6 ba6 9.Nh4 Bg4=; B) 6.Bd4 Bf5 (6...e6 7.Nf3 Bd6 8.Be2 c5 9.Be5 0–0=; 6...Nc4 7.Nf3 Bg4 8.Bc4 dc4 9.Qe2 ab5=; 6...b6 7.Nf3 c5 8.Bc3 e6 9.Ne5 Bd6=) 7.Nc3 e6 8.Rb1 ab5 9.Bb5 Nd7+=; C) 6.Bc3 c5 (6...Nc4 7.Nf3 Ne4 8.Bd4 ab5 9.ab5 Ra1=; 6...c6 7.Nf3 Bg4 8.h3 Bh5 9.ba6 ba6=) 7.Nf3 Bg4 8.h3 Bh5 9.ba6 ba6=.

5.ba6 ba6 6.Bc3 Nc6 (6...c5 7.Nf3 Nc6 8.d4 c4 9.e4 e6=) 7.Nf3 Rb8 8.Bd3 Qd6 9.Qe2 Nb4 =.

5.ba6 ba6 6.Be2 Rb8 7.Bc3 Nc6 8.f4 d4 9.ed4 Nd4 =.

5.ba6 ba6 6.Nf3 Rb8 7.Bc3 Nc6 8.Bd3 Qd6 9.Qe2 Nb4 =.

5.ba6 ba6 6.Nf3 Nc4 7.Bc4+= dc4 8.Nc3 (8.Na3 Qd5+=) 8...Bg4 (8...Rb8 9.Rb1+/–) 9.0–0 (9.Qe2 Rb8 10.Rb1 e6+/–) 9...e5 (9...Rb8 10.Rb1+=) 10.e4 f6 11.Rb1 Rb8 12.Qe2 Bc5 13.Nd1 Qd7 14.Qc4+= Bf3 15.Qc5+/– Qg4? 16.Ne3+– Qg6 17.Ba3 (17.Ba3 Rc8 18.Rb3 Be4 19.f3 Bc2 20.Nc2+–) 1–0. mr (2260) – matozo (1975), net–chess.com, 2008.

5.ba6 b6 A) 6.Be2 Nf6 (6...e6 7.Nf3 Ba6 8.Ne5 Nf6 9.Bh5 Nh5=; 6...Ba6 7.Nf3 e6 8.Ba6 Ra6 9.0–0 Nf6=) 7.Nf3 e6 8.0–0 Bd6 9.d3 0–0=; B) 6.Nc3 Ba6 (6...Nf6 7.Nf3 e6 8.a7 c6 9.Bd3 Bd6=; 6...e6 7.e4 Nf6 8.ed5 ed5 9.Nb5 Ba6=) 7.Ba6 Ra6 8.e4 d4 9.Nb5 Nc4=; C) 6.Na3 e6 7.Nf3 c6 8.Ne5 Nf6 9.Qf3 Qc7+=; D) 6.a3 e6 (6...Nf6 7.Nf3 e6 8.Nc3 Ba6 9.Ba6 Ra6=; 6...c6 7.Nf3 Ba6 8.Ba6 Ra6 9.Qe2 Ra7=) 7.Nf3 Nf6 8.Nc3 Ba6 9.Ba6 Ra6=; E) 6.a7 Ra7 (6...Nf6 7.Nf3 Ra7 8.Ne5 c6 9.Bd4 e6=) 7.Nf3 e6 8.Nc3 c6 9.Rb1 Nf6=; F) 6.Nf3 c6 (6...Nf6 7.Ne5 Ba6 8.Ba6 Ra6 9.Qe2 Qc8=; 6...e6 7.Ne5 Ba6 8.Ba6 Ra6 9.Qe2 Qc8=; 6...f6 7.d4 Ba6 8.Ba6 Ra6 9.Nbd2 e6+=; 6...Ba6 7.Ba6 Ra6 8.Qe2 Ra8 9.0–0 e6=; 6...Nh6 7.Nc3 e6 8.e4 de4 9.Ne4 c6+=) 7.Ne5 Nf6 8.Bc3 Nd7 9.Nd7 Qd7=.

5.Nf3 ab5 6.Bb5 c6 (6...Bd7 7.Bd7 Qd7 8.d3 f6 9.Ba3 Nh6=) 7.Be2 Bg4 8.Bc3 e6 9.Ne5 Be2 =.

5.Nf3 Nc4 6.Bc4 dc4 7.ba6 Ra6 8.Qe2 Qd5 9.Nc3 Qc5 =.

5.Nf3 Nf6 A) 6.Bd4 Nc4 (6...e6 7.Nc3 ab5 8.Bb5 c6 9.Bd3 b5=; 6...ab5 7.Bb5 Bd7 8.Nc3 Bb5 9.Nb5 c6=; 6...Bg4 7.ba6 ba6 8.h3 Bf5 9.Be2 Nc6=) 7.ba6 Ra6 8.Ne5 c5 9.Nc4 cd4=; B) 6.Ne5 c6 (6...Nd7 7.ba6 ba6 8.c4 Rb8 9.Qc2 dc4=; 6...ab5 7.Bb5 c6 8.Bd3 g6 9.Qf3 Bg7=; 6...Qd6 7.Be2 ab5 8.Bb5 c6 9.Be2 Nd7=) 7.ba6 b6 8.Bc3 Nd7 9.Qh5 Ne5=; C) 6.Nc3 ab5 (6...Qd6 7.ba6 ba6 8.d4 Rb8 9.Rb1 e6=) 7.Bb5 c6 8.Be2 Bg4 9.Ne5 Be2=; D) 6.Be5 Nc4 (6...ab5 7.Bb5 c6 8.Be2 Bg4 9.Bf6 Bf3=; 6...Ng4 7.Bd4 e6 8.ba6 ba6 9.Bc3 Nc6=) 7.Bc4 dc4 8.Nc3 Nd7 9.0–0 f6=; E) 6.Na3 ab5 (6...e6 7.Be2 ab5 8.Nb5 c6 9.Bf6 gf6=; 6...c6 7.ba6 b6 8.Be2 Ba6 9.Ba6 Ra6+=) 7.Bb5 c6 8.Be2 Bg4 9.0–0 Bf3+=; F) 6.ba6 ba6 (6...b6 7.Ne5 Ba6 8.Ba6 Ra6 9.Qe2 Qc8=) 7.Be2 Rb8 8.Be5 Nc6 9.d4 e6=.

4.e3 b6

5.c4 dc4 6.Qc2 (6.Bc3 a6 7.Ba5 ba5 8.Bc4 Nf6=) 6...Bb7 (6...a6 7.Bc4 Nc4 8.Qc4=+) 7.Nc3 (7.Bc3!?=) 7...e6 8.Ne4 (8.Nf3 c6=+) 8...Qh4 (8...Qd7 9.a4–/+) 9.d3 (9.Nc5 Bc5 10.Bg7 a6+=) 9...0–0–0 (9...Bb4 10.Nc3–/+) 10.Nf3 (10.Rc1=+) 10...cd3 (better is 10...Qh5!?–/+) 11.Bd3= Qg4 12.Rc1+/– Rd7 13.0–0 f5 14.h3 Qg6= 15.Ne5 Qf7?? 16.Nf7+– Rf7 17.Ng5 Rd7 18.Ne6 (18...Ne7 19.Nc7+–) 1–0. wlittle (2130) – kcollins (1980), net–chess.com, 2005.

5.c4 Nc4 6.Bc4 dc4 7.Qe2 –/+.

5.d3 Bf5 6.Nd2 f6 7.Ngf3 e5 8.e4 de4 9.de4 Bg4 10.Be2 Bb4 11.c3 Bf3 12.Bf3 Bc5 13.0–0 Ne7 14.Nb3 Qd1 15.Rfd1 0–0? (better is 15...Nc4!? 16.Nc5 Nb2+=) 16.Nc5+– bc5 17.a4 (better is 17.Ba3!?+–) 17...Nc4+/– 18.Bc1 c6 (18...Rfd8 19.Be2 Rd1 20.Bd1+/–) 19.bc6 (better is 19.Be2!? cb5 20.Rd7+–) 19...Nc6+= 20.Rd5 Nb6? (better is 20...N6a5!? 21.Bd1 Rad8+=) 21.Rc5+– Ne7 (21...Rfc8 22.Bg4 Rc7 23.a5+–) 22.Be3 (22.Rc7 Ng6 23.Bg4 Rfe8+–) 22...Ng6 (22...Rfc8 23.Bg4 Rc5 24.Be6 Kf8 25.Bc5+–) 23.a5 Nd7? (23...Nc8+–) 24.Rc7 Rfd8 25.Rd1 Ndf8 26.g3 (26.Rd8 Rd8 27.a6 Nf4+–) 26...a6? (26...Rdc8 27.Rc8 Rc8 28.Ba7 Rc3 29.a6+–) 27.Bb6 (27.Rd8 Rd8 28.Be2 Nd7+–) 27...Rd1 (27...Rdc8+–) 28.Bd1 Rd8 ½–½. Valpa – Djpnola, playchess.de, 2004.

5.Nf3 a6 6.Ne5 f6?? (better is 6...Nf6=) 7.Qh5+– g6 8.Ng6! Nc4 (8...hg6 Exploits the pin 9.Qh8) 9.Ne5 1–0. marekt – Deim, internet, 2007.

5.Nf3 Bb7 6.Be2 e6 7.0–0 Nf6 8.Bc3 Nc4 9.Bc4 dc4 10.Qe2 Bd5 11.Ne5 Ne4 12.Nc4 Bc4 13.Qc4 Nc3 14.Qc6 Ke7 15.Nc3 g6 16.a4 Bg7 17.Rfd1 Qd6 18.Qd6 cd6 19.a5 d5 20.ab6 ab6 21.Ra6 Bc3 22.dc3 Ra6 23.ba6 Ra8 24.Ra1 Kd6 25.f4 Kc6 26.h4 Kb5 27.a7 Kc4 28.Ra3 b5 29.g4 b4 30.cb4 Kb4 31.Rb3 Kc4 32.Rb7 Kc3 33.Rf7 Kd2 34.Kf2 Kc2 35.Rh7 Kc3 36.Rg7 Kd3 37.Rg6 Ra7 38.Re6 Ra2 39.Kf3 Rh2 40.h5 Rh3 41.Kg2 Re3 42.f5 d4 43.h6 Re2 44.Re2 Ke2 45.h7 d3 46.h8Q d2 47.Qb2 Ke1 48.Qc3 Ke2 49.Qf3 Ke1 50.Qf1# 1–0. Bonetti,Shane – BillF, ICC, 2002.

5.Nf3 c5 6.bc6 Nc6 7.Bb5 Bd7 8.0–0 a6 9.Be2 Nf6 10.d3 h6 11.Nbd2 e6 12.c4 Bc8 13.cd5 Nd5 14.Qb3 b5 15.Rfc1 Bb7 16.Ne4 Na5 17.Qd1 Rc8 18.Rc8 Qc8 (better is 18...Bc8!? 19.Rc1 Bb7+=) 19.Bg7!+– Bg7 20.Nd6 Ke7 (20...Kd7 21.Nc8 Nc3 22.Nb6 Kc7+–) 21.Nc8 Bc8 (21...Rc8 22.d4+–) 22.Rc1 Bd7 (22...Nc3 23.Qd2 Ne2 24.Qe2+–) 23.Qd2 Nc6 24.e4 Nf6 25.Qe3 Rg8 (25...Rc8+–) 26.Rc6! Bc6 27.Qc5 Kd7 (27...Kd8 28.Qc6 Ne8 29.Qa6 Nc7+–) 28.Ne5 Kc7 29.Qc6 (29.Qc6 Kd8 30.Qb7 Ke8 31.Nc6 Ne4 32.Qe7) 1–0. Fournier,Frederic (1925) – Kapavlanca (1800), Active (5/12), 2004.

5.Nf3 Bd7 6.a4 Nf6 7.Be2 c6 8.0–0 cb5 9.ab5 e6 10.Na3 Bc5 11.Ne5 0–0 12.Nb1 Ne4 13.f3 Nf6 14.Ra4 Bd6 15.f4 Ne4 16.Nc3 f6 (16...Nc3!? 17.Bc3 a6 18.Nd7 Qd7+=) 17.Ne4+/– de4 18.Nd7 Qd7 19.Re4 f5 (19...a6 20.ba6 b5 21.Qb1 Ra6 22.Bc3+–) 20.Rd4+– Qc7 21.Qa1 Bc5 22.Ra4 Qd6? (better is 22...Rfd8 23.Bc3 Rac8+–) 23.d4 (23.Bg7?! Qd2 24.Bf3 Rac8 25.Bf8 Qe3 26.Kh1 Bf8+–) 23...Bb4 24.c3 Nb3 (24...Bc5 25.Qa2 Rfe8 26.dc5 Qc5 27.Rd4+–) 25.Qd1 Ba5 (25...Nc5 26.Rb4 (26.cb4?! Na4 27.Qa4 Rac8+–) 26...Ne4 27.Ra4+–) 26.Qb3 1–0. Janek – Stephen, internet, 2016.

5.Nf3 Bd7 6.Nc3 e6 7.Ne5 Bc8 (7...Nf6 8.Be2+=) 8.f4 Nc4? (better is 8...Bb7!?+=) 9.Bc4 (9.Nc4 dc4 10.Qf3 Rb8+–) 9...dc4 10.Qf3 Rb8 11.Qc6 Bd7 12.Qc4 (worse is 12.Qd7 Qd7 13.Nd7 Kd7+/–) 12...Bd6 13.Nd7 Qd7 14.Ne4 Ne7?? (better is 14...f6+–) 15.Bg7 (15.Nd6?! cd6 16.0–0 0–0+/–) 15...Rf8 (15...Nd5 16.Bh8 Be7+–) 16.Nf6 (16.Nf6 Kd8 17.Nd7 Kd7 18.Bf8 Rf8 19.a4+–) 1–0. b4player – oppo, internet, 2009.

5.Nf3 e6 6.d4 Bd7 7.Nbd2 Be7 8.Be2 Nf6 9.c4 dc4 10.Nc4 Bb5 11.Na5 Bb4 12.Nd2 Be2 13.Qe2 (13.Qa4!? Qd7 14.Qb4 ba5 15.Qa5=) 13...Ba5+= 14.0–0 0–0 15.Nc4 Bb4 16.e4 Be7 17.Rac1 c5 18.Rfd1 Qc7 19.d5 ed5 20.ed5 Rfe8 21.Be5 White plans d6 21...Qb7 The isolani on d5 becomes a target 22.d6 Bd8 23.Qb2 Qe4 24.f3 Qg6 25.d7 Re7? (better is 25...Re6+=) 26.Qb5+– Qf5?? (26...Nh5 27.Qa6 Qc6+–) 27.Qc6 Rd7 28.Qa8 b5 (28...h5 29.Bc7! Kh7 30.Bd8 Rd1 31.Rd1 Qc2+–) 29.Qd8 Rd8 30.Rd8 Ne8 31.Re8 1–0. phildo (1915) – dragoneye, gameknot.com, 2014.

5.Nf3 f6 6.d4 h5 (6...a6 7.Bc3+=) 7.Bd3 f5 (7...a6 8.Nbd2+/–) 8.Nbd2 e6 9.Ne5 Ne7 (9...Bd6 10.Bc3+/–) 10.Ndf3 Qd6 11.c3 Kd8?? (better is 11...c6+/–) 12.Nf7+– Kd7 (12...Ke8 13.Nd6 cd6 14.Ba3+–) 13.Nd6 (13.Nh8 Nec6+–) 13...Kd6 (13...cd6 14.Ng5+–) 14.Ne5 Rh7 15.0–0 (15.Ba3 c5 16.bc6 Kc7+–) 15...g5 (15...c5 16.dc5 bc5 17.c4+–) 16.h3 (better is 16.Ba3!? c5+–) 16...g4 17.h4 a6 (17...c5 18.c4+–) 18.Ba3 c5 19.bc6 (19.Qa4 Kc7 20.dc5 Kd8 21.ba6 Nc4 22.Bc4 dc4 23.cb6 Ra6 24.Be7 Ke7 25.Qb4 Kf6 26.Qf8 Ke5 27.Qc8 Ra5+–) 19...Kc7 20.Be7 (better is 20.c4!? dc4 21.Nc4 Nc4 22.Bc4 b5+–) 20...Be7 21.f3 (21.Rc1 Bh4 22.c4 dc4 23.Bc4 Be7+–) 21...Rh6 (21...Bh4 22.c4 dc4 23.Bc4+–) 22.fg4 hg4 23.g3 Ba3 24.Rb1 b5 25.Qd2 Bd6 26.e4 Rh7 27.ed5 ed5 28.Bf5 Rf7 29.Nf7 Bg3 30.Bc8 Rc8 31.Ne5 Bh4 32.c4 dc4 33.Qa5 Kd6 34.Qa6 Kd5 35.Qc8 c3 36.Rb5 Kd4 37.Qg4 Ke3 38.Qf3 Kd2 39.Qd3 1–0. madik – atuvi, gameknot.com, 2008.

5.Nf3 Nf6 6.Ne5 Qd6 7.Qf3 Be6 8.Be2 g6 9.d4 Bg7 10.Ba3 Qd8 11.Bb4 0–0 12.Ba5 ba5 13.c4 dc4 14.Bc4 Bc4 15.Nc4 Nd5 (15...a6 16.a4 Qd5 17.Qd5 Nd5 18.Kd2+=) 16.0–0 Nb4 17.a3 (17.Na5?! Nc2 18.Nc6 Qd6+/–) 17...Nd5 18.Na5 e6 19.Nc6 Qd6 20.Nd2 f5 21.Qe2 a6 22.a4 a5 (better is 22...Qd7+–) 23.Nc4 Qd7 24.N4a5 f4 25.Nb7 e5 26.Nc5 Qd6 27.Qc4 ed4 28.e4 (28.Nd4?! fe3 29.Rad1 Rf2 30.Rf2 ef2 31.Kf2 Qf4 32.Kg1 Rd8+–; 28.ed4?! Kh8+–) 28...d3 29.Rad1 (worse is 29.ed5 Ba1 30.Ra1 f3+–) 29...Kh8 30.Qd5 Qf6 31.Nd7 Qc3 32.Rd3 Qc2 33.Nce5 Be5 34.Qe5 Kg8 35.Qd5 Rf7 36.Qa8 Kg7 37.Qd5 Rf5 38.ef5 gf5 39.Qe5 (39.Qe5 Kg8 40.Qe6 Kg7 41.Qf6 Kg8 42.Qf8) 1–0. Nemec,Zdenek (2030) – Bester,Kazimierz, 29. LSS No Engine Cup Preliminary, 2010.

5.Nf3 Bg4 6.Be2 Qd7 (6...Nf6 7.Bf6 gf6 8.d4+=) 7.Ne5 Be2 8.Qe2 Qe6 (8...Qf5 9.d3+=) 9.0–0 0–0–0 (9...Nf6 10.f4+=) 10.f4 (better is 10.Bc3+/–) 10...f6?? (better is 10...Nh6+/–) 11.f5+– Qe5 12.Be5 fe5 13.e4 d4 14.d3 Nf6 15.Nd2 (15.Qf3 g6+–) 15...g6 (15...e6 16.Nf3 Bd6 17.fe6+–) 16.Nf3 Ng4 (16...Nd7 17.Ng5 Re8 18.Ne6+–) 17.Ng5 Ne3 18.Nf7 Nf1 (18...Rg8 19.fg6 hg6 20.Nd8 Kd8 21.Rf3+–) 19.Rf1 Bg7 20.fg6 hg6 21.Qg4 Kb8 22.Qg6 Bf6 23.Nd8 Rd8 24.g4 Nb7 (24...a6 25.g5 Bg5 26.Qg5 ab5 27.h4+–) 25.g5 Bh8 (25...Nd6 26.gf6 ef6 27.Qf6 Rg8 28.Kf2 Nb5 29.Qe5+–) 26.Qh6 Kc8 (26...Bf6 27.gf6 ef6 28.Qf6+–) 27.Rf8 Nd6 28.Qe6 Kb7 29.Qd5 Kc8 30.Qa8 Kd7 31.Rd8 Ke6 32.Qd5 1–0. orane – trixster, caissa.com, 2006.

5.Nf3 Bg4 6.Be2 e6 7.0–0 Be7?? (better is 7...Nf6+=) 8.Bg7+– (8.Bg7 Bf6 9.Bh8 Bh8 10.d4+–) 1–0. pierred – anony, internet, 2015.

5.Nf3 Bg4 6.Be2 Nf6 7.Bf6 gf6 8.d4 +=.

5.Nf3+= Bg4 6.h3 Bf3 7.Qf3 e6 8.a4 (8.Be2 a6+=) 8...Qd6 (8...Nf6 9.Be2+=) 9.Be2 f6 (9...c6 10.0–0+=) 10.Nc3 (10.0–0 c5+/–) 10...0–0–0+= 11.0–0 Kb8 12.d4 Nh6 13.Ba3 Qd7 14.Nb1 (14.Bf8 Rdf8 15.e4 Rd8 16.ed5 ed5+=) 14...Nf5 (14...e5 15.Rd1=) 15.Nd2 (15.Bd3 Nc4 16.Bf5 ef5 17.Bf8 Rhf8+=) 15...h5 (15...Ba3 16.Ra3 e5 17.c3=) 16.Bd3 (16.Bf8 Rdf8 17.c4 g5 18.cd5 g4 19.hg4 hg4 20.Qg4 ed5+/–) 16...Ba3 17.Ra3 Qd6 (17...g5 18.c4+=) 18.Rfa1 Nh4 19.Qe2 f5 20.c4 dc4 21.Nc4+/– Nc4 22.Bc4 g5 23.a5+– Rd7 24.ab6 cb6 25.Qa2 Rhh7 26.Be6 Rde7 27.Bf5! Rhf7 28.Be4 g4 29.hg4 hg4 30.Ra6 Rg7 31.Bc6 Nf3 32.gf3 gf3 33.Kf1 Qh2 34.Bf3 Qh3 35.Ke2 Qh6 36.Qd5 Kc8 37.Rc1 Rc7 38.Qb7 Kd8 39.Qb8 (39…Rc8 40.Rc8 Ke7 41.Qa7 Kf6 42.Qb6 Kg5 43.Qh6 Kf5 44.e4#) 1–0. Van Esbroeck,Dirk – Jatkowski,S, corr WE, 1995.

5.f4!?

4.e3 Nc4

5.Bc3 Bd7 6.a4 Be6 7.Bc4 dc4 8.Nf3 Bg4 (8...Nf6 9.Qe2=) 9.h3 Bf5 10.g4 Be4 11.Rg1 Nf6 (11...e6 12.Ne5=) 12.Bf6 ef6 13.Nd4 Bc5 14.f3? (better is 14.Nf5 0–0 15.Nc3=) 14...Bd4–+ 15.ed4? (better is 15.Ra2 Bg6 16.ed4 Qd4 17.Qe2 Kd7 18.Qg2–+) 15...Qd4 16.c3 (16.Rf1 Qa1 17.fe4 Qa4 18.Nc3–+) 16...Qg1 17.Ke2 Qg3 (17...Bd3) 18.Qf1 (18.fe4 Qh3 19.Qg1–+) 18...Bd3 19.Ke3 0–0 (19...0–0–0 20.Qd3 cd3 21.b6 Rhe8) 20.Qh1 Rfe8 21.Kd4 Qe5# 0–1. elijah – readbob, gameknot.com, 2013.

5.Bc3 Bf5 6.d3 Nd6 7.a4 h5 8.Nf3 Nf6 9.Be2 e6 10.h3 Be7 11.Nbd2 0–0 12.0–0 Nh7 13.Nh4?? (better is 13.Be5+=) 13...Bh4–+ 14.Bh5 Qg5 15.Be2? (15.g4 Bg6 16.Nf3 Qd8 17.Bg6 fg6–+) 15...Bh3 16.Bf3 Nf5 (16...a6!? 17.ba6 Ra6 18.Kh2–+) 17.e4 de4 (better is 17...Nh6–+) 18.Ne4+= Qg6 19.Kh2 Bg2 20.Bg2 Bg5 (20...Be7 21.Qf3+=) 21.Qg4 (21.Ng5 Ng5 22.Bb7 Rab8=) 21...f6 (21...Qh6!? 22.Qh3 Bf4 23.Kh1 Nh4–/+) 22.Kg1 Kf7 23.f4 Bh4 (23...Ne3 24.Qh3 A) 24...Nc2? 25.Rac1 (worse is 25.fg5 Ng5 26.Ng5 Qg5+/–) 25...Bf4 26.Rf4+– (26.Rc2?! Ng5 27.Ng5 Qg5+/–); B) worse is 24...Ng2 25.fg5 Ng5 26.Qg2 Ne4 27.de4+/–; C) 24...Nf1 25.fg5 Ng5 26.Ng5 C1) 26...fg5? 27.Bb7 (27.Kf1?! Qf5 28.Qf5 ef5+–) 27...Rab8 28.Rf1 (28.Qf1?! Kg8 29.Qg2 Qf5=) 28...Kg8 29.Be4+–; C2) 26...Qg5 27.Kf1 Qf4 28.Ke2 Rh8=) 24.Qg6+/– Kg6 25.Rf3 (25.Nc5 Rae8 26.Bb7 Kf7+/–) 25...Rfd8 (25...Rfc8 26.Nc5 c6 27.bc6 Rc6 28.d4+=) 26.Kf1 (26.Nc5!?+=) 26...Kf7 27.Be1 (27.Rh3 Nf8=) 27...Be1 28.Re1 Nf8 29.Ng3 (29.Nc5 b6 30.Na6 Rac8+=) 29...Ng6 30.Nf5 ef5 31.Rfe3 Rd7 (better is 31...Rab8!?–/+) 32.Bb7= Rh8 33.Bc6 Rh1?? (33...Re7 34.Bd5 Kf8 35.Re7 Ne7=) 34.Ke2 (better is 34.Bh1 Rd4 35.Kg1+–) 34...Re1+= 35.Ke1 Rd8 36.Kd2 (36.Rf3 Rd4+=) 36...Rh8 (better is 36...Nf4!? 37.c3 Rh8–/+) 37.Kc3 (better is 37.Bd5!? Kf8 38.Rf3=) 37...Rh2 0–1. Fournier,Frederic (1790) – eddyhurtado, Active, 2005.

5.Nf3?? Nb2–+ (5...Nb2 6.Qc1 Nc4–+) 0–1. Valpa – Djpnola, playchess.de, 2005.

5.Bc4 dc4

6.Na3 Nf6 =.

6.a4 Nf6 (6...Qd6 7.Nf3 Qg6 8.Rg1 f6 9.Na3 e5=; 6...a6 7.Nf3 Bg4 8.h3 Bh5 9.Na3 Qd5+=; 6...Qd5 7.Nf3 Bg4 8.h3 Bh5 9.Nc3 Qd6=) 7.Nf3 Bg4 8.Qe2 Qd5 9.Nc3 Qc5 =.

6.Nc3 e5 7.Qe2 Bd6 8.Qc4 (8.f4 ef4 9.ef4 Ne7 10.Nf3 0–0 11.0–0 Ng6 12.g3 Bh3) 8...Qg5 (8...Be6 9.Qd3 Qg5 10.Qe4 Nf6 11.Qb7 0–0 12.Ne4 Qg4; 8...Nf6 9.Nf3 0–0 10.0–0 a6 11.a4 Be6 12.Qd3 h6) 9.Nge2 Nf6 10.Ne4 Ne4 11.Qe4 0–0 12.0–0 Rb8.

6.Nc3 e5 7.Qe2 Be6 A) 8.Qf3 Rb8 (8...Bb4 9.Qg3 Nf6 10.Nf3 0–0 11.Qe5 a6 12.0–0 Qd6; 8...Qc8 9.Qg3 f6 10.Nf3 Nh6 11.e4 Kf7 12.0–0 Qd7; 8...Bc8 9.Qg3 f6 10.Qh4 Be6 11.Nf3 Ne7 12.Qe4 Bd5) 9.Qe2 Nf6 10.Nf3 Bd6 11.Ng5 Qd7 12.0–0 0–0; B) 8.h3 Qd7 (8...Bd6 9.Nf3 Nf6 10.Ng5 Qd7 11.Qf3 0–0–0 12.Rd1 h6; 8...Nf6 9.Nf3 Bd6 10.Ng5 Qd7 11.Qf3 0–0–0 12.a4 Bb4) 9.Nf3 Bd6 10.0–0 Nf6 11.Ng5 0–0 12.e4 h6; C) 8.e4 Bd6 (8...Nf6 9.Nf3 Bd6 10.Ng5 Qd7 11.0–0 0–0 12.Qe3 Bg4) 9.Nf3 Nf6 10.0–0 0–0 11.Ng5 Qe7 12.a4 Bc5; D) 8.a4 Bd6 (8...Nf6 9.Nf3 Bd6 10.Ng5 Qc8 11.Nce4 Ne4 12.Ne4 0–0; 8...h6 9.Nf3 Bd6 10.Nb1 Nf6 11.Be5 0–0 12.Nc3 c5; 8...Bb4 9.Nf3 f6 10.Rd1 Ne7 11.0–0 0–0 12.Ne4 Qd5) 9.Nf3 f6 10.0–0 Ne7 11.Ne4 0–0 12.Rfd1 Nf5; E) 8.Rd1 Bd6 (8...Nf6 9.Nf3 Bd6 10.Ng5 Qe7 11.0–0 0–0 12.Qf3 a6; 8...Qd6 9.Nf3 Nf6 10.0–0 Be7 11.Ng5 Qb4 12.Ne6 fe6) 9.Nf3 Nf6 10.Ng5 Qe7 11.Qf3 0–0–0 12.h3 h6; F) 8.f4 ef4 9.ef4 Qf6 10.Nf3 Qf4 11.Ne4 Nf6 12.Bf6 gf6; G) 8.Nf3 Bd6 9.0–0 Nf6 10.Ng5 Qd7 11.f4 ef4 12.ef4 Bc5.

6.Nc3 e5 7.Nf3 Bd6 8.0–0 Nf6 9.Qe2 0–0 10.Qc4 a6 11.a4 Be6 12.Qd3 h6.

6.Nc3 e5 7.Nf3 Bd6 8.Na4 Qe7 (8...Qf6 9.0–0 Bg4 10.Re1 0–0–0 11.Qe2 Bf3 12.Qf3 Qf3; 8...f6 9.0–0 Ne7 10.d4 cd3 11.Qd3 Be6 12.c4 b6) 9.Qe2 Nf6 10.Qc4 0–0 11.0–0 a6 12.b6 Be6.

6.Nc3 e5 7.Nf3 Bd6 8.d3 A) 8...cd3 9.Qd3 Nf6 10.0–0–0 0–0 (10...Bd7 11.Nd5 Be6 12.e4 Ng4) 11.Ne5 Be6 12.Nc4 Be7; B) 8...Be6 9.Ne4 cd3 10.0–0 f5 11.Neg5 Bd5 (11...Bd7 12.cd3 Qe7) 12.cd3 Nf6; C) 8...a6 9.dc4 Nf6 10.Nd5 (10.0–0 0–0 11.a4 Re8 12.Ba3 Bf5) 10...ab5 11.Be5 Be5 12.Ne5 Be6; D) 8...Nf6 9.dc4 0–0 10.0–0 a6 (10...e4 11.Ng5 Bf5 12.f3 Bc5) 11.Qd3 (11.a4 Re8 12.Ba3 Bf5) 11...Qe7 12.Ng5 g6.

6.Nc3 e5 7.Nf3 Bd6 8.d4 A) 8...cd3 9.Qd3 Nf6 10.0–0–0 (10.Rd1 Bg4 11.h3 Bf3 12.gf3 Qd7) 10...0–0 (10...Bd7 11.Nd5 Be6 12.e4 Ng4) 11.Ne5 Be6 12.Nc4 (12.Ne4 Ne4) 12...Be7; B) 8...ed4 9.Qd4 Nf6 10.0–0–0 (10.0–0 0–0 11.e4 Be7 12.Qc4 Be6) 10...Be6 (10...0–0 11.Ne4 Re8 12.Nd6 cd6) 11.Ng5 (11.Ne5 Bb4 12.Nc4 Qd4) 11...Qe7 (11...0–0 12.Nce4 Be7) 12.Nce4 Ne4.

6.Nc3 e5 7.Nf3 Bd6 8.Qe2 Nf6 (8...Be6 9.Ne4 f6 10.0–0–0 Ne7 11.d3 cd3 12.Qd3 Kf7) 9.Qc4 0–0 10.0–0 Be6 11.Qd3 Qd7 12.Ng5 a6.

6.Nc3 e5 7.Nf3 Bg4 8.0–0 (8.h3 Be6 9.0–0 f6 10.d4 cd3 11.cd3 a6 12.ba6 Ra6; 8.Qe2 Nf6 9.Qc4 Qd6 10.Ng5 0–0–0 11.0–0 Be6 12.Ne6 Qe6) 8...Bd6 (8...Qf6 9.Nd5 (9.Ne4 Qf5 10.Ng3 Qf6 11.Qe2 Bd6 12.Kh1 Ne7) 9...Qd6 10.e4 Nf6 11.Be5 Bf3 12.Bd6 Bd1) 9.h3 Bh5 10.Ne4 Nf6 11.Ng3 Bg6 (11...Qe7!?= 12.Nf5 Qf8; 11...Bf3 12.Qf3 Qd7) 12.Ne5+/– 0–0 (12...Be5 13.Be5 Qd7 14.Bf6 gf6 15.f4+/–) 13.Nc4 Bg3 14.fg3 Ne4 15.d3 Ng3 16.Rf2 f6 (better is 16...a6!? 17.ba6 b5+/–) 17.Qg4 Nh5 18.Raf1 (18.Qf3 a6 19.g4 ab5+–) 18...Qe8 (18...a6 19.ba6 Ra6 20.Ne5+–) 19.a4 (19.Ba3 Rf7 20.Qf3 Qb5+–) 19...Qc8 (19...a6 20.Ba3 ab5 21.ab5+– (21.Bf8?! bc4 22.Bg7 Kg7 23.Qc4 Qd7+/–)) 20.Qh4 (20.Qc8 Rac8 21.Kh2 f5+–) 20...f5 21.Ne5 (21.g4 Nf6 22.gf5 Be8+–) 21...Nf6 (21...Qe6 22.g4 fg4 23.Qg4 (worse is 23.hg4 Rf2 24.Qf2 Nf6+–; 23.Ng4?! Rf2 24.Rf2 a6+–) 23...Qg4 24.hg4 (worse is 24.Ng4 Rf2 25.Rf2 a6+–) 24...Rf2 25.Rf2+–) 22.Qc4 Kh8 23.e4! fe4 24.Ng6 hg6 25.Bf6 gf6 26.Rf6 (26.de4?! Kg7+–) 26...Rf6 27.Rf6 Qe8 28.Re6 (28.Qe4?! Qe4 29.de4 Kg7+–) 28...Qd7 (28...Qf7 29.Qd4 Qg7 30.Qe4 Rg8+–) 29.Qe4 (worse is 29.Re4 Rf8+–; 29.de4?! Kh7+–) 29...Rg8 30.Re7 Qf5 (30...Qe7 31.Qe7 Rg7 32.Qd8 Kh7+–) 31.Qd4 1–0. algernon (2195) – reyr (2180), net–chess.com, 2010.

6.Nc3 Bf5 7.Qf3 Bc2 (7...Qc8 8.Qf4 Nf6 9.Rc1+=) 8.Qb7+/– Rb8 9.Qc6 Qd7 10.Qd7 Kd7 11.Nf3 f6 (11...Bd3 12.Ne5 Ke8 13.Nc6+/–) 12.Nd4 Bd3 13.Nc6 (13.a3+=) 13...Rb6 (better is 13...Ra8!?=) 14.Na7+/– White gets the initiative 14...Re6? (better is 14...e5!?+/–) 15.Na4 Ke8 (15...Rb6 16.Nc5 Kd8 17.a4+– (17.Nd3?! cd3 18.a4 Kd7+–)) 16.Rc1 Nh6 (16...Rd6 17.Nc5+–) 17.Nc5 Rd6 (17...Rb6 18.a4+–) 18.Nd3 Rd3 (18...cd3 19.Rc7 e5 20.Nc6+–) 19.Rc4 Nf5 (19...Rd7 20.a4+–) 20.Rc7 e5 (20...Nh4 21.b6 Ng2 22.Ke2+–) 21.b6 Bb4 (21...Rd8 22.Nc6 Bd6 23.Nd8 Kd8+–) 22.b7 Bd2 (22...Rd8 23.Nc8 Bd2 24.Ke2+–) 23.Ke2 Rd8 Plans Nd6 24.Rc8 Kf7 (24...Kd7 25.b8Q Rc8 26.Nc8 Rc8 27.Qb5 (27.Kd2?! Rb8 28.Kc3 Nd6+=) 27...Rc6 28.Rd1+–) 25.b8Q Rhe8 26.Rd8 Rd8 27.Qd8 Bb4 28.Qd7 Ne7 29.Nc6 Bc5 30.Nd8 Kf8 31.Qe6 Ke8 32.Rd1 Kf8 1–0. Woschkat,Karl_Heinz – Krahl,Wolfgang, CiF, 1996.

6.Nc3 Nf6 7.Qe2 Be6 8.e4 g6 9.Nf3 Bg7 10.0–0 0–0 11.h3 a6 12.Rfb1 ab5 13.Nb5 c6 14.Nbd4 Qd7 15.Bc3 b5 16.Ne5 Qd6 17.Nec6+– Nh5 18.Rb5 Nf4 19.Qe3 Bd7 20.e5 Nd5 21.Rd5! Qd5 22.Ne7 Kh8 23.Nd5 Rfe8 24.e6! Be6 25.Nc7 Bd4 26.Qd4 Kg8 27.Qg7# 1–0. pereira – Ronald, internet, 2007.

6.Nc3 Nf6 7.Nf3 a6 8.a4 A) 8...g6 9.0–0 (9.Qe2 Bg7 10.0–0 0–0 11.Qc4 Be6 12.Qd4 Bg4 13.Ba3 Re8 14.Ne5; 9.Ne5 Bg7 10.Nc4 Be6 11.d3 Nd5 12.Ne4 Bb2 13.Nb2 0–0 14.0–0) 9...Bg7 10.Qe2 0–0 11.Qc4 Be6 12.Qc5 Qd6 13.Qd6 cd6 14.Nd4; B) 8...Bf5 9.Ne5 (9.0–0 ab5 10.Nb5 c6 11.Nbd4 Bg4 12.h3 Bh5 13.d3 Qb6 14.Ba3; 9.h3 ab5 10.Nb5 c6 11.Nbd4 Bg6 12.0–0 Qc7 13.Nh4 e5 14.Ndf3) 9...ab5 10.ab5 Ra1 11.Ba1 e6 12.Nc4 Bb4 13.0–0 0–0 14.d3.

6.Nc3 Nf6 7.Nf3 e6 8.0–0 Bd6 (8...a6 9.a4 (9.Qe2 ab5 10.Nb5 c6 11.Bf6 gf6 12.Nc3 b5 13.Rfd1 f5 14.a3) 9...ab5 10.ab5 Ra1 11.Qa1 Bd6 12.Qa4 e5 13.Qc4 Be6 14.Qd3; 8...Qd6 9.Qe2 e5 10.a4 Qe6 11.e4 Bd6 12.h3 h6 13.a5 0–0 14.Ba3) 9.Qe2 (9.e4 e5 10.Qe2 Be6 11.Ng5 Qe7 12.Nd1 a6 13.b6 cb6 14.Ne3) 9...0–0 (9...e5 10.Qc4 Be6 11.Qd3 0–0 12.Ng5 Qd7 13.Ne6 Qe6 14.Ne4) 10.Qc4 a6 11.a4 ab5 (11...Bd7 12.e4 (12.h3 e5 13.e4 c6 14.bc6) 12...e5 (12...Ng4 13.h3 Ne5 14.Ne5) 13.h3+/– (13.d4 Be6 14.d5) 13...Qe7 14.d4) 12.ab5 (12.Nb5 Ra6 13.h3 Bd7 14.e4) 12...Ra1 13.Ra1 Ng4?? (better is 13...e5+/– 14.e4) 14.Qg4+– 1–0. Anonymous – heere, internet, 2011.

6.Nc3 Nf6 7.Nf3 e6 8.ba6 Ra6 9.Qe2+= g6 10.Qc4 Bg7 11.0–0 0–0 12.Nb5 Rc6 13.Qa4 Ra6 14.Qc4.

6.Nc3 Nf6 7.Nf3 e6 8.Qe2 A) 8...a6 9.a4 (9.Qc4 ab5 10.Nb5 c6 11.Nbd4 Qd5 12.Qb3 Bd6 13.0–0 0–0 14.Ne2; 9.ba6 Ra6 10.Ne5 Bd7 11.0–0 Bd6 12.Nc4 0–0 13.a4 Bb4 14.Ba3) 9...ab5 10.ab5 Ra1 11.Ba1 Qd6 12.Qc4 Bd7 13.0–0 Be7 14.Bb2; B) 8...Bd6 9.Qc4 (9.0–0 e5 10.Qc4 Be6 11.Qd3 0–0 12.Ng5 Qd7 13.a4 Bc5 14.Ne6; 9.e4 e5 10.Qc4 Bg4 11.Qd3 0–0 12.0–0 Qd7 13.h3 Bh5 14.Rfe1) 9...0–0 10.0–0 e5 11.d4 e4 12.Ne5 Be6 13.Qe2 Qe7 14.h3.

6.Qe2 Qd5!? 7.Nf3 Qb5 =+.

6.Qe2 Be6 7.f4 Nf6 8.Nf3 Ne4 9.0–0 Bg4 10.Qc4+/– (10...Nd6 11.Qb4+/–) 1–0. abhijit – heyuneverno (1605), net–chess.com, 2002.

6.Nf3 a6 7.Na3 ab5 8.Nb5 c6 9.Nbd4 (9.Nc3 Qd6=) 9...Bg4 (9...f6 10.Ne2+=) 10.h3= Bh5 11.Nf5 f6 12.0–0 (12.e4 e5=) 12...e6 (12...Qd5 13.e4 Bf3 14.Qf3 (worse is 14.ed5 Bd1 15.Rfd1 cd5–/+) 14...Qd2 15.Ne3=) 13.Ng3= Bf3 14.Qf3 Qd2 15.Rfd1?? (better is 15.Qh5 g6 16.Qg4+=) 15...Qc2–/+ 16.Bd4 Be7 (16...e5 17.Rac1 Qa4 18.Bb6–/+) 17.Qg4 Kf7 18.Rdc1 (18.Ne4 Nh6 19.Qh5 Kg8 20.Nf6 Bf6 21.Bf6 Qf5 22.Qf5 ef5+=) 18...Qd3 19.Ne4 h5 (19...Nh6 20.Qh5 Kg8 21.Nf6 Bf6 22.Bf6–/+) 20.Qf3 (20.Qf4 f5 21.Nd6 Bd6 22.Qd6 Ne7+=) 20...f5 (20...Ra5!? 21.Rc3 Rf5 22.Rd3 Rf3–/+) 21.Ng3 (21.Nc3 c5 22.Rd1 Qc2+=) 21...Nf6 (21...Ra3 22.Rd1 Qc2 23.Rab1+=) 22.Rc3 Qd2 23.Rc4 (23.Nf1 Qb2 24.Rc4 Qb5+=) 23...Ra2–/+ 24.Rd1 Qa5 25.Bf6 gf6 (25...Bf6 26.Nh5 Rd8 27.Rb1–/+) 26.Nh5 (26.Rh4 Rd2–/+) 26...Ra1 (better is 26...Qb5 27.Rcc1 Qe2 28.Qe2 Re2–/+) 27.Nf4? (27.Rcc1 Rc1 28.Rc1 Qd5+=) 27...Rd1?? (better is 27...e5–+) 28.Qd1+= e5 29.Ne2 (29.Ra4!? Qb5 30.Ra8=) 29...Rd8–/+ 30.Qb3 Qe1 31.Kh2 Kf8 (31...Qd1!? 32.Rc2 Kf8+=) 32.Rh4+= Qe2?? (better is 32...Qd1 33.Qb7 Qd7+=) 33.Rh7+– Rd5 (33...Qh5 34.Rh5 Rd5 35.Qb7 Rd1 36.Rh7 Rd2 37.Qe7 Kg8 38.Qg7) 34.Qb7 1–0. Wall,Bill – Brooke,John, Sunnyvale, CA, 1988.

6.Nf3 a6 7.a4 Bg4 8.h3 Bh5 9.Na3 Qd5 +=.

6.Nf3 a6 7.ba6 Ra6 8.Qe2 =.

6.Nf3 Qd5 7.Nc3 Qd6 (7...Qh5 8.Qe2 Be6 9.e4 Nf6+=) 8.e4 (8.Qe2 Qc5 9.e4 Nf6+=) 8...Bg4 9.h3 Bh5 (9...Bf3+=) 10.g4 Bg6 11.Qe2 Qb4 12.Rb1 Qc5 13.Nd5 0–0–0 14.Bd4 Qa3 15.Nc3 e6 16.Qc4 Be4? (better is 16...Kb8+–) 17.Be5 (17.Ne4?! Qf3 18.Be5 Rd7+= (18...Qh1? 19.Ke2 Qe4 20.Qe4+–)) 17...c6 (17...Bc5 18.Qe4 f6 19.Bg3+–) 18.Qe4 (18.Ne4 Qf3 19.Rh2 Nf6 20.bc6 Qe4 21.Qe4 Ne4 22.cb7 Kd7+–) 18...c5 19.0–0 b6 (19...h5 20.g5 Ne7+–) 20.Qc6 1–0. COMP – NN, internet, 2002.

6.Nf3 e6 7.Ne5 (7.Qe2!?+=) 7...Qd5= 8.a4 (better is 8.Qf3 f6 9.Qd5 ed5 10.Nf3=) 8...Bb4?? (better is 8...Qg2!? 9.Qf3 Qf3 10.Nf3 f6–/+) 9.Nf3 (9.Qg4 Bf8 10.e4+/– (10.Nc4?! Nh6 11.Qf4 Qg2+=)) 9...Nf6 10.0–0 e5 (10...a6!?=) 11.Be5+/– (worse is 11.Ne5 c3 12.Bc3 Bc3 13.Nc3 Qe5–/+) 11...Bg4 12.h3?? (better is 12.Bf6 gf6 13.d4+/–) 12...Bf3–/+ 13.Qf3 Qe5 14.Qb7 0–0 15.Ra2 c5 16.Qf3 c3 17.dc3 Bc3 18.Nc3 Qc3 19.Qe2 Ne4 20.Rd1? Rad8 21.Rd3 Rd3 22.cd3–/+ Qc1 23.Qf1 Qf1 24.Kf1 Nc3 25.Ra3 Nb1 26.Ra1= Nc3 27.Ra3 Rd8?? 28.Rc3+– Rc8 29.Ke2 f5 30.Rc4 h5 31.d4 Re8 32.Rc5 g6 33.Rc7 f4 34.Ra7 g5 35.b6 g4 36.hg4 hg4 37.b7 Rb8 38.Ra8 1–0. Valpa – Ralf, playchess.de, 2004.

6.Nf3 Nf6 7.Qe2 Qd5 8.Nc3 Qc5 9.a4 e6 (10.Ba3 Qb6 11.Bf8 Rf8 12.Qc4 Qd6+/–; better is 9...Bg4=). pcmvr (2450) – demerick (2270), net–chess.com, 2006.

6.Nf3 Bd7

7.Nc3 Qb8 8.Qe2 a6 (8...Be6 A) 9.Nd4 Qc8 (9...Bd7 10.Qc4 Nf6 11.Nf3 a6 12.a4 ab5; 9...Bc8 10.Qc4 Nf6 11.Nf3 a6 12.a4 ab5) 10.0–0 Nf6 11.f4 a6 12.a4 h5; B) 9.e4 Nf6 (9...a6 10.Ng5 Bc8 11.Nd5 Nf6 12.b6 Nd5) 10.Ng5 Qc8 11.f4 h6 12.Ne6 Qe6; C) 9.a4 a6 (9...Qd8 10.Nd4 Qd6 11.a5 a6 12.Ba3 Qd7; 9...c6 10.Nd4 Bd7 11.bc6 bc6 12.Ba3 Qc7) 10.Ng5 Qc8 11.ba6 ba6 12.e4 Rb8; D) 9.Ng5 Qc8 (9...Bd7 10.Qc4 e6 11.0–0 Nf6 12.f4 a6; 9...Bf5 10.e4 Bd7 11.Nd5 Nf6 12.Qc4 Nd5) 10.Qf3 c6 11.bc6 bc6 12.Ne6 Qe6; E) 9.0–0 Qd8 (9...Nf6 10.a4 Qd8 11.Ng5 Qd6 12.e4 Qd7; 9...Bg4 10.Nd5 c6 11.bc6 e6 12.Nf4 bc6; 9...c6 10.Nd4 Qd6 11.bc6 bc6 12.Ne4 Qe5) 10.Ng5 Qd6 11.Qf3 0–0–0 12.Nf7 Bf7) 9.a4 (9.ba6 Ra6 (9...b5 10.a4 b4 11.Ne4 Nf6 12.Nc5 Bc6) 10.Ne5 (10.Qc4 Nf6 11.0–0 b5 12.Qe2 Ra5) 10...Nf6+/– (10...Be6 11.Nc4 Qa7 12.d4 Nf6) 11.Qc4 Be6 12.Qd4 c6; 9.Ne5 Be6 (9...Nf6 10.Qc4 Be6 11.Qc5 Nd7 12.Nd7 Bd7) 10.Nc4 Nf6 11.a4 ab5 12.Nb5 Qd8) 9...ab5 10.Nb5 Bb5 11.ab5 Ra1 12.Ba1 Qa8 (12...Qa7 13.0–0 Qa4 14.Bc3 Qb5 15.Ra1+/–) 13.Bc3 Qa4 14.0–0 (14.b6 cb6 15.Ne5 f6 16.Qh5 g6 17.Ng6 hg6 18.Qh8 Qc2+–) 14...Qb5 15.Ra1 e6 16.Nd4 Qg5?? (better is 16...Qb6+/–) 17.Ra8+– Ke7 (17...Kd7 18.Rf8 Qe7+–) 18.Qc4 Kd6 (18...Kd7 19.Nf3 b5 20.Qd4 Qd5 21.Ne5 Ke7 22.Bb4 Qd6 23.Bd6 cd6 24.Nc6 Kd7 25.Qa7 Kc6 26.Rc8 Kd5 27.Qd4) 19.Nb5 Kd7 (19...Qb5 20.Rd8 Qd7 21.Bb4 Ke5 22.Qf4 Kd5 23.Rd7 Kc6 24.Qc7 Kb5 25.Qa5 Kc4 26.d3) 20.Qc7 1–0. mtr – guest, internet, 2009.

7.Nc3 c6 8.a4 cb5 9.ab5 a6 10.ba6 b5? (10...Ra6!? 11.Ra6 ba6+/–) 11.0–0 (11.Ne5!? b4 12.Qf3 Nf6+–) 11...e6 12.Qe2 Bb4?? (12...Qb6 13.d3 f6 14.dc4 bc4 15.Rfb1 Ra6 16.Ba3+–) 13.Ne4 (better is 13.Nb5!? c3 14.Bc3 Bc3 15.Nd6 Ke7 16.dc3 Nf6+–) 13...Bc6 (better is 13...f6 14.d3 cd3 15.cd3 e5+–) 14.Nc3 Bf3?? (14...Bd7 15.Nb5 c3 16.Bc3 Bc3 17.Nd6 Ke7 18.dc3 Nf6+–) 15.Qf3+– (15.gf3?! Bc3 16.Bc3 Nf6+/–) 15...Nf6 16.Qc6 Nd7 17.Nb5 0–0 18.Qc4 Bd2 (18...Bc5 19.Qg4 Nf6 20.Bf6 Qf6 21.d4+–) 19.Qd4 (better is 19.Rfd1!? Nf6 20.a7 h6+–) 19...Ba5 (19...Nf6+–) 20.Qg7 1–0. Tycho – Milosforman, playchess.de, 2004.

7.Nc3 c6 8.a4 cb5 9.ab5 Qc7 +=.

7.Nc3 c6!? 8.a4 cb5 9.ab5 Nf6 +=.

7.Nc3 c6 8.bc6 Bc6 9.Qe2 b5 (9...Qb6 10.Rb1 Qc5 11.d4 cd3 12.cd3+= (< 12.Qd3 Nf6=+)) 10.0–0 (10.a4 a6+/–) 10...Nf6 11.a4 b4 12.Nb5 Bb5 (12...a6 13.Qc4 Qc8 14.Ne5 ab5 15.Qf7 Kd8 16.Nc6 Qc6 17.ab5+/–) 13.ab5+/– Qc7 (13...Qd5!?+/–) 14.Ra6 (14.Bd4 Nd7+–) 14...c3 (14...Qc5 15.b6!+–) 15.dc3 bc3 16.Rc6 Qd8 (16...Qb7 17.Bc3 Ne4 18.Be5+–) 17.Bc3 e6? (17...Ne4+–) 18.Rd1 Qb8 19.b6! ab6 (19...Qb6 20.Rb6) 20.Qb5 Nd5 21.Rc7 Kd8 22.Qd7# 1–0. b4_player – opponent, gamecolony.com, 2007.

7.Ne5 Be6+= (7...Bb5? 8.Qh5 Nh6 9.Nf7 Nf7 10.Qb5 c6 11.Qb7+–).

6.Nf3 Bg4

7.0–0 Qd5= 8.Nc3 Qh5 9.h3 Bf3 10.Qf3 Qf3 11.gf3 0–0–0 (11...Rd8 12.Rfd1=) 12.Rfd1 e6 (12...e5 13.d3=) 13.a4 (13.d3 cd3 14.Rd3 Nh6=) 13...Bb4 (13...Ne7 14.d3=) 14.a5+= White fights for the Initiative 14...Nf6 (14...Bc3 15.Bc3 (15.dc3?! Rd5+=) 15...Rd5 16.Rdb1+=) 15.Ra4 c5 (15...Bc3!? 16.Bc3 Rd5+=) 16.bc6+/– Bc3 17.cb7 Kb7 18.Bc3 Nd5 (18...Rc8 19.a6 Ka8 20.Rb1+/–) 19.Bb2 (19.Bd4 Nf4 20.Kh2 Ne2 21.a6 Ka8+–) 19...f5? (better is 19...Rc8!?+/–) 20.Rc4+– (20.Bg7 Rhg8 21.a6 Kc6 22.Rc4 Kd6+=) 20...Rhg8 21.Rb1 Ka8 22.Be5 g5 (22...Rc8 23.Rc8 Rc8 24.d3+–) 23.d4 g4 (23...Rc8 24.Rc8 Rc8 25.c4+–) 24.fg4 fg4 25.e4 gh3 26.Kh2 (26.Kh1 Ne7 27.Rc7 Rge8+–) 26...Ne7 27.Bg3 (27.Rc7 Ng6 28.Rbb7 Ne5 29.Ra7 Kb8 30.Rcb7 Kc8 31.de5+–) 27...Rg6 (27...Rc8 28.Rc8 Rc8+–) 28.Rc7 (worse is 28.Kh3 Rh6 29.Kg2 Rh5+–) 28...Nc8 (28...Rg3 29.fg3 Nc8 30.e5+–) 29.Be5 Rdg8 (29...Rgg8 30.Rd7! Nb6 31.Rd8 Rd8 32.ab6 Kb7 33.ba7 Ka7+–) 30.Rh7 Rg2 31.Kh1 Rf2 (31...Ne7 32.Re7 Rg1 33.Rg1 Rg1 34.Kg1 a6 35.Re8 Kb7 36.Re6 h2 37.Kh2 Kc8 38.Re7 Kd8 39.Ra7 Ke8 40.d5 Kf8 41.d6 Ke8 42.d7 Ke7 43.f4 Kf7 44.d8Q Ke6 45.Qd6) 32.Rb8 1–0. b4_player – opponent, gamecolony.com, 2007.

7.0–0 Qd5 8.h3 Bf3 (8...Qb5 9.Nc3 Qb2 10.Rb1=) 9.Qf3= Qf3 10.gf3 0–0–0 11.a4 Nf6 12.Bc3 Nd5 13.Bd4 f6 14.e4 (14.Ba7 b6 15.Na3+=) 14...Nb4 15.c3 Nc2 16.Ra2 Nd4 17.cd4 Rd4 18.Nc3 (18.Rc1 f5+=) 18...e6 19.Ne2 Rd6 (19...Rd3 20.Rc1 Bb4 21.Rc4 Bd2 22.Nd4–/+) 20.a5 (better is 20.Rc1!?+=) 20...Be7 21.Rc1 Rhd8 22.Rcc2 e5 23.Nc3 Rd3 (23...c6 24.bc6 bc6 25.Nd1–/+) 24.Kg2 Bb4 25.Nd5 Bc5 (better is 25...R8d5!? 26.ed5 Rd5 27.Rc4 Rb5–/+ (worse is 27...Bd2 28.b6 ab6 29.ab6+=)) 26.Ra4 (26.Rc4 R8d5 27.ed5 Rd5=) 26...c6 (26...R8d5!? 27.ed5 Rd5 28.Rac4 Bd6+=) 27.bc6+= bc6 28.Rac4 cd5 29.Rc5 Kb8 30.ed5 (better is 30.Rb2!? Ka8 31.Rc7 de4 32.fe4+=) 30...R3d5+= 31.Rc7 (31.Rb2 Ka8 32.Rc7 g5+= (worse is 32...Rd2 33.Rbb7 a6 34.Ra7 Kb8 35.Rcb7 Kc8 36.Rg7+/–)) 31...R5d7 (31...Rd2!? 32.R2c6 R2d6–+) 32.R7c5 Kb7 33.Rb2 Ka6 34.Rcc2 g5 35.Kg3 (35.Rc6 Ka5 36.Rf6 Re7–/+) 35...f5 (35...Rd6 36.Ra2–/+) 36.h4 f4 37.Kg4 Rg7?? (better is 37...gh4 38.Rc5 Rg8 39.Kf5 Re8–/+) 38.hg5+= Rd6 (38...Rd5 39.Rc3+=) 39.Kf5 (39.Rc5 h6 40.Re5 Rg5 41.Rg5 hg5 42.Kg5 Ka5 43.Kf4 Rd8+–) 39...Re7? (39...Rdg6 40.Ke5 Rf7 41.Ke4 Rg5 42.Rc1+=) 40.Rb3 (40.Rc5 h6 41.Re5 Rf7 42.Kg4 hg5 43.Rg5 Rd4+–) 40...Ree6 (better is 40...h6!?+=) 41.Rbc3+– Kb7? (better is 41...h6 42.gh6 Rh6 43.Ke5 Rde6 44.Kf4 Rhf6 45.Kg3 Rg6 46.Kh4 Rg2+/–) 42.Rc7 Ka6 43.R7c3 (43.Rh7!? Re8+–) 43...Kb5?? (43...Kb7 44.Rc5 h6 45.Re5 Rg6 46.gh6 Rdf6 47.Ke4 Rh6+–) 44.Rb2 (44.Rc5 Kb4+–) 44...Ka6 45.Rb8 (better is 45.Rc7 h6 46.gh6 Rh6 47.Ke5 Rde6 48.Kf4 Rhf6 49.Kg4 Rg6 50.Kh3+/–) 45...Rd5?? (better is 45...h6+/–) 46.Ke6+– e4 (46...Rd2 47.Ke5 Ra2+–) 47.fe4 Rg5+– 0–1. Fournier,Frederic (1965) – socramj (1920), Active, 2005.

7.a4 a6 8.Qe2 (8.h3 Bh5=) 8...ab5 9.ab5 Ra1 10.Ba1 Qd5 (10...Qa8 11.Be5 Qa4 12.d4=) 11.Nc3 Qc5 12.0–0 e6 (12...Nf6 13.Bb2 Qb4 14.Rb1=) 13.Bb2 (better is 13.h3 Bh5 14.Bb2+=) 13...Bd6?? (better is 13...Qh5=) 14.Ne4+– Qh5 (14...Bh2 15.Kh2 Qh5 16.Kg1 Qg6+–) 15.Nd6 (15.Bg7? Bh2 16.Nh2 Be2–+; 15.Qc4 f6 16.b6 Bf3 17.Nd6 cd6 18.Qe6 Kf8+–) 15...cd6 16.Bg7 (16.Qc4?! Ne7 17.Qc7 Bf3 18.Qb8 Kd7 19.Qh8 Bg2+/–) 16...Bf3 (16...e5 17.Bh8 e4 18.Ra1 ef3 19.Qc4+–) 17.Qf3 Qf3 18.gf3 Nf6 (18...Ne7 19.Bh8 Kd7 20.d3+–) 19.Bh8 (19.Bh8 Nd5 20.Ra1+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

7.a4 Nf6 8.Qe2 =.

7.Qe2 Qd5 8.Nc3 Qf5 (8...Qc5 9.h3 Bh5 10.a4+=) 9.Nd4 (9.e4 Bf3 10.Qc4 Be4 11.Ne4 0–0–0+=) 9...Be2 10.Nf5 Bg4 11.Ng3 (11.e4 Bf5 12.ef5 0–0–0=) 11...Nf6 (11...e5 12.f3 Be6 13.Nce4=) 12.0–0 (12.Nge4=) 12...c6 (12...Rd8!? 13.h3 Bc8=) 13.bc6+= bc6 14.f3 Bd7 15.Nce2 e6 16.Rfb1 Bd6 17.e4 (17.Bf6 gf6 18.Ne4 Be5+/–) 17...Bc7 (17...e5!?=) 18.Bd4+= White fights for the Initiative 18...Bc8 (18...e5 19.Be3+=) 19.Rb4 (19.f4 Ba5 20.c3 0–0+/–) 19...h5 20.Rc4 Bd7 (20...h4 21.Nh1 Kd7 22.Ra4+=) 21.e5 Nd5 22.Ne4 f5 (22...a5!?+/–) 23.ef6+– gf6 24.Bf6 Rg8 (24...Nf6 25.Nf6 Ke7 26.Nd7 Kd7 27.Re1+–) 25.Rb1 (better is 25.N2g3 Nb6 26.Rc5 Nd5+–) 25...h4? (better is 25...Kf7 26.Bb2 Rab8+–) 26.Bh4 Rh8 (26...e5 27.Rb7 Rg6 28.Ra4+–) 27.Bg3 Bb6 (27...Bg3 28.N2g3 Nb6 29.Rcb4+–) 28.d4 Ke7 (28...Rh5 29.Bd6+–) 29.c3 (29.Bd6 Kf7+–) 29...Rag8 30.Bd6 (30.Kf2 Rh6+–) 30...Kd8 31.N2g3 (31.N2g3 Rh4 32.Be5+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

7.h3 Be6 +=.

7.h3 Bf3 8.Qf3 e6 9.Qb7 Rb8 10.Qc6 Qd7 11.Qd7 Kd7 12.a4 c6 13.Na3 cb5 14.ab5 a6 15.ba6 Bc5 16.Bg7 Ne7 17.Bh8 Rh8 18.Nc4 Rc8 19.0–0 Ba7 20.Ne5 Ke8 21.Rfc1 f6 22.Nf3 e5 23.d4 ed4 24.ed4 Nd5 25.c4 Nb4 26.Ra4 Nd3 27.Rc2 Rd8 28.Rd2 Rb8 29.Rd3 Rb1 30.Kh2 1–0. Machete99 – guest137, ICC, 2002.

4.e3 c5

5.bc6 Qb6 6.cb7 A) 6...Bb7 7.Bd4 (7.Be5 f6 8.Bg3 e5 9.Nc3 Ne7 10.Nf3 Nf5 11.Rb1) 7...Qc7 8.Nf3 Nc6 9.Bb5 f6 10.Nc3 e5 11.Nd5; B) 6...Nb7 7.Bd4 (7.Be5 Nf6 8.Nc3 Nd6 9.Nf3 Bd7 10.Rb1 Qc5 11.Bd4) 7...Qa5 8.Nf3 Nf6 9.Nc3 Nd6 10.Rb1 Nfe4 11.Ne5; C) 6...Qb7 7.Bc3 (7.Ba3 Nc4 8.Bc4 dc4 9.Nf3 Qa6 10.Bc5 Nf6 11.Nc3) 7...Nc4 8.Nf3 Nf6 9.Bd4 Rb8 10.Bc4 dc4 11.Be5.

5.bc6 Qb6 6.Bd4 A) 6...Qc7 7.cb7 (7.Nc3 Nc6 8.Nf3 e5 9.Nb5 Qe7 10.Bb2 a6 11.c4) 7...Bb7 8.Nf3 Nc6 9.Bb5 a6 10.Ba4 Nf6 11.Be5; B) 6...Qd8 7.cb7 Bb7 8.Nc3 Nc6 9.Rb1 Rb8 10.Bb5 Nf6 11.Nf3; C) 6...Qc6 7.Nf3 (7.Nc3 Nc4 8.Nf3 f6 9.Bc4 Qc4 10.Rb1 Nh6 11.d3) 7...Nf6 8.Nc3 a6 9.Rb1 Nc4 10.Bc4 dc4 11.0–0.

5.bc6 bc6 6.Nc3 A) 6...Nf6 7.Rb1 (7.Nf3 Qd6 8.Rb1 g6 9.Bd3 e5 10.Ne5 Qe5 11.Nb5) 7...Rb8 8.Nf3 e6 9.Bd3 Bd6 10.0–0 e5 11.Be2; B) 6...Qd6 7.Nf3 (7.Rb1 Rb8 8.Nf3 Nf6 9.Be2 g5 10.Na4 Nc4 11.Bc4) 7...Nf6 8.Rb1 g6 9.Ne2 Nc4 10.Bc3 Bh6 11.d3; C) 6...Rb8 7.Rb1 (7.Ba3 Nf6 8.Nf3 g6 9.Bd3 Bg7 10.Rb1 Rb1 11.Qb1) 7...Nf6 8.Nf3 Qd6 9.Be2 g6 10.e4 Rb2 11.Rb2.

5.bc6 bc6 6.Bd3 A) 6...c5 7.Nf3 (7.Nc3 c4 8.Be2 Rb8 9.Rb1 Nf6 10.Nf3 e6 11.0–0) 7...Nf6 8.Nc3 c4 9.Be2 Rb8 10.Rb1 e6 11.0–0; B) 6...Nc4 7.Bc4 dc4 8.Nc3 Nf6 9.Nf3 Qd6 10.Qe2 Rb8 11.Rb1; C) 6...Nf6 7.Nf3 (7.Be5 Ng4 8.Nf3 Ne5 9.Ne5 g6 10.Nc3 Bg7 11.f4) 7...Nc4 8.Bc4 dc4 9.Nc3 Rb8 10.Rb1 Qd6 11.Qe2.

5.bc6 bc6 6.Be5 A) 6...Nh6 7.Nc3 (7.Nf3 f6 8.Bg3 Nf5 9.d4 h5 10.Bd3 g5 11.h3) 7...f6 8.Bg3 Nf5 9.Nf3 e5 10.Rb1 Bd6 11.Be2; B) 6...Bf5 7.Nc3 (7.Nf3 f6 8.Bg3 e5 9.Nc3 Nh6 10.Nh4 Be6 11.Rb1) 7...f6 8.Bg3 Kf7 9.Nf3 e5 10.Rb1 Nh6 11.d4; C) 6...f6 7.Bg3 (7.Bc3 Nh6 8.Nf3 e5 9.d3 Bd6 10.Nbd2 0–0 11.Be2) 7...Nh6 8.Nf3 Nf5 9.Nc3 e5 10.Rb1 Be7 11.Be2.

5.bc6 bc6 6.Nf3 A) 6...h5 7.Bd4 (7.Be5 Nh6 8.Nc3 f6 9.Bg3 g5 10.h3 Nf5 11.Bd3) 7...Nf6 8.Nc3 Rb8 9.Ba7 Rb7 10.Bd4 Bf5 11.Rb1; B) 6...Rb8 7.Be5 (7.Bd4 Nf6 8.Nc3 e6 9.Ba7 Rb7 10.Bd4 Bd6 11.Ba6) 7...Rb7 8.Nc3 Nf6 9.Bd3 e6 10.0–0 Bd6 11.Qe2; C) 6...Nf6 7.Bd4 (7.Be5 Ng4 8.Bg3 g6 9.Nc3 Bg7 10.h3 Nh6 11.Rb1) 7...e6 8.Nc3 Bd6 9.Rb1 Qc7 10.Bf6 gf6 11.Bd3.

5.bc6 Nc6 6.Na3 A) 6...Nf6 7.Nf3 (7.Nb5 e5 8.Nf3 a6 9.Nc3 Bd6 10.d3 0–0 11.Be2) 7...a6 8.c4 Bf5 9.cd5 Nd5 10.Rc1 Rc8 11.Be2; B) 6...e5 7.Nf3 (7.Bb5 Bd6 8.c4 Nf6 9.cd5 Nd5 10.Nc4 0–0 11.Bc6) 7...Qa5 8.Nb1 e4 9.Nd4 Nf6 10.Bb5 Bd7 11.Be2; C) 6...Bd7 7.Nf3 (7.Nb5 Nf6 8.Nf3 Ne4 9.Ne5 a6 10.Nd7 Qd7 11.Nd4) 7...Nf6 8.Be2 e5 9.0–0 Qa5 10.Qc1 Be7 11.Nb5.

5.bc6 Nc6 6.Bb5 Bd7 (6...a6 7.Bc6 (7.Bd3 e5 8.Nc3 Nf6 9.f3 Bd6 10.Nge2 Nb4 11.0–0) 7...bc6 8.Nf3 Nf6 9.0–0 Bg4 10.h3 Bf3 11.Qf3; 6...Nf6 7.Nf3 (7.Nc3 e5 8.Nf3 Bd6 9.Ba4 0–0 10.Nb5 e4 11.Nd6) 7...e6 8.Nc3 Bd6 9.0–0 0–0 10.Qe2 Bd7 11.h3; 6...Nh6 7.Nc3 (7.Nf3 a6 8.Bc6 bc6 9.Nc3 e6 10.0–0 Bd6 11.Nd5) 7...a6 8.Bc6 bc6 9.Nf3 Rb8 10.Rb1 Bg4 11.h3) 7.f4 (7.Nc3 a6 8.Be2 Nf6 9.Nf3 e5 10.0–0 Bd6 11.d3; 7.Nf3 a6 8.Bc6 bc6 9.Bd4 f6 10.0–0 e5 11.Bc3) 7...Nb4 (7...Qb6!? 8.Nc3 Nf6= 9.Nf3 d4 10.ed4 Nd4 11.Bd7; 7...a6 8.Bc6 bc6 9.Nc3 Rb8 10.Rb1 Nf6 11.Nf3) 8.Bd7+= Qd7 9.Nf3 Nf6 10.0–0 e6 11.a3 (11.Nc3+=) 11...Na6 (11...Nc6 12.Ne5 Qc7 13.c4+=) 12.d3 (12.Ne5 Qc7+/–) 12...Ng4 13.Qe2 Bc5 14.d4 0–0?? (better is 14...Bd6+=) 15.dc5+– Nc5 16.Rd1 (16.Bd4 Qe7+–) 16...a6 (16...Rfc8 17.Nc3+–) 17.h3 Nh6 (17...Na4 18.Bg7 (18.hg4?! Nb2 19.Rd4 b5+–) 18...Kg7 19.hg4+–) 18.Nc3 (18.c4!? Ne4+–) 18...b5 19.e4 Na4 (19...Qa7 20.Nd4 de4 21.Ne4 Na4+–) 20.Na4 ba4 21.Ne5 (21.c4!? Rab8+–) 21...Qd6 22.f5! Qc5 (22...ef5 23.Rd5 Deflection (23.ed5 Passed pawn)) 23.Kh1 (better is 23.Bd4 Qc7 24.f6+–) 23...Ra7 (23...de4 24.fe6 fe6 25.Qe4 Nf5 26.Qa4 Rfb8+–) 24.Bd4 Qc7 25.Ba7 (25.Ng4 Ng4 26.Qg4 e5+–) 25...Qe5 26.Rab1 (26.fe6 fe6 27.Qa6 Qe4+–) 26...ef5 (26...Nf5 27.Qa6 de4+–) 27.Rd5 Qc7 (27...Qe4 28.Qd2 Qh4 29.Rb8 Rb8 30.Bb8+–) 28.Bd4 Rd8 (28...Re8 29.Qa6 Qc2+–) 29.Bb6 (29.Bb6 Qb6 30.Rb6+–) 1–0. Jacewicz,Grzegorz (2125) – Heineccius,August, remoteschach.de, 2010.

5.bc6 Nc6 6.Nc3 A) 6...Nf6 7.Bd3 (7.Nh3 e5 8.Bd3 Bc5 9.f3 0–0 10.Nf2 Bd7 11.0–0) 7...e5 8.Nge2 Bc5 9.0–0 0–0 10.f4 e4 11.Bb5; B) 6...Bf5 7.Nf3 (7.g4 Bg6 8.Nf3 Nf6 9.g5 Ne4 10.Ne4 de4 11.Nd4) 7...Nf6 8.Bd3 Bd3 9.cd3 e6 10.0–0 Be7 11.Rc1; C) 6...e5 7.h3 (7.Nf3 Nf6 8.Rb1 Bd6 9.Nb5 0–0 10.Nd6 Qd6 11.Bb5) 7...Nf6 8.Nf3 Bd6 9.Nb5 0–0 10.Nd6 Qd6 11.Bb5.

5.bc6 Nc6 6.c4 A) 6...Qb6 7.Qb3 (7.Qc1 d4 8.Nf3 de3 9.fe3 Nf6 10.Be2 Bf5 11.0–0) 7...Nf6 8.Nf3 Be6 9.Na3 Rc8 10.Be2 Ne4 11.0–0; B) 6...d4 7.Nf3 (7.ed4 Nd4 8.Nf3 Nf3 9.Qf3 Nf6 10.Nc3 Qb6 11.Na4) 7...de3 8.fe3 Nf6 9.Nc3 e5 10.Qb3 Bc5 11.Qb5; C) 6...Nf6 7.Nf3 (7.Nc3 d4 8.ed4 Nd4 9.Nf3 Bf5 10.d3 e5 11.Ne5) 7...Bf5 8.cd5 Nd5 9.Nc3 Ndb4 10.Rc1 e5 11.Qa4.

5.bc6 Nc6 6.Nf3 A) 6...Nf6 7.Bd3 (7.Bb5 e6 8.Ne5 Qc7 9.Ng4 Nd7 10.f4 a6 11.Bc6) 7...g6 8.Nc3 e5 9.e4 d4 10.Nb5 a6 11.Na3; B) 6...e6 7.Nc3 (7.Bd3 Nf6 8.0–0 Bc5 9.Ba3 Ba3 10.Na3 e5 11.Be2) 7...Nf6 8.Rb1 e5 9.Bb5 Bd6 10.d4 e4 11.Ne5; C) 6...Qb6 7.Ba3 (7.Qc1 Nf6 8.Nc3 e5 9.Ba3 Qa5 10.Bf8 Kf8 11.Rb1) 7...Qa5 8.Bb2 Qb6 9.Ba3 Qa5 10.Bb2 Qb6 11.Ba3.

5.bc6 Qc7 6.Na3 A) 6...Nc6 7.Nb5 (7.Nf3 a6 8.c4 Nf6 9.Qa4 Qa5 10.Qa5 Na5 11.Rc1) 7...Qb6 8.Rb1 e5 9.f4 f6 10.Nf3 ef4 11.ef4; B) 6...Nf6 7.Nb5 (7.cb7 Bb7 8.Nf3 a6 9.Rc1 Rc8 10.c4 Qb6 11.Rb1) 7...Qc6 8.Be5 Ng4 9.Nc7 Kd8 10.Bg3 Rb8 11.Nf3; C) 6...bc6 7.Nf3 (7.Rb1 Nf6 8.Nf3 e6 9.Bd3 Bd6 10.c4 Rb8 11.Qa4) 7...Nf6 8.c4 Qb6 9.Bd4 Qb4 10.Nc2 Qa4 11.cd5.

5.bc6 Qc7 6.cb7 A) 6...Nb7 7.Nf3 (7.Nc3 Nf6 8.Nb5 Qd8 9.Nf3 a6 10.Nbd4 Qc7 11.Rb1) 7...Nd6 8.Be5 f6 9.Bb5 Bd7 10.Bd7 Qd7 11.Bd6; B) 6...Bb7 7.Nf3 (7.Na3 a6 8.Nf3 Nf6 9.Rc1 e6 10.c4 Qb6 11.Rb1) 7...Nf6 8.Be5 Qd7 9.Nc3 Nc6 10.Rb1 e6 11.Bd3; C) 6...Qb7 7.Bc3 (7.Ba3 Nf6 8.Nc3 Nc4 9.Bc4 dc4 10.Nf3 Qa6 11.Bb4) 7...Nc4 8.Nf3 Bd7 9.Bd4 Nb2 10.Bb2 Qb2 11.Nc3.

5.bc6 Qc7 6.Nc3 A) 6...Nc4 7.Nd5 (7.Bc4 dc4 8.Nf3 Qc6 9.h3 Nf6 10.0–0 Qc5 11.d4) 7...Qc6 8.Qh5 Be6 9.Bc4 Qc4 10.Nf4 Bd7 11.Qe5; B) 6...bc6 7.Nf3 (7.Rb1 Rb8 8.Nf3 Nf6 9.Na4 e6 10.Be5 Bd6 11.Bd6) 7...Nf6 8.Be2 e6 9.Qc1 Rb8 10.Ba3 Bd6 11.Bd6.

5.bc6 Qc7 6.Nf3 A) 6...bc6 7.Be5 (7.Bd3 Bg4 8.Be5 Qe5 9.Ne5 Bd1 10.Kd1 f6 11.Nf3) 7...Qd7 8.Nc3 f6 9.Bg3 Nh6 10.Rb1 e5 11.e4; B) 6...Bg4 7.cb7 (7.Be5 Qc6 8.h3 Bd7 9.Nc3 Nc4 10.Rb1 f6 11.Bg3) 7...Qb7 8.Bc3 Nc4 9.h3 Bd7 10.Bc4 dc4 11.Bd4; C) 6...Nc6 7.c4 (7.Nc3 Nf6 8.Nb5 Qb6 9.Rb1 Ne4 10.Bd3 Qa5 11.0–0) 7...Qb6 8.Qb3 Nf6 9.Bf6 Qb3 10.ab3 ef6 11.cd5.

5.bc6 Nf6 6.cb7 A) 6...Nb7 7.Bd4 (7.Be5 Nd6 8.Nc3 Nfe4 9.Bd3 Nc3 10.Bc3 Ne4 11.Ne2) 7...Nd6 8.Nf3 Rb8 9.Nc3 Nde4 10.Ne5 Nc3 11.Bc3; B) 6...Bb7 7.Nf3 (7.Na3 Ne4 8.Rb1 Bc6 9.Nf3 Rb8 10.d3 Nf6 11.Be5) 7...Nc4 8.Bc4 dc4 9.0–0 e6 10.Bd4 Rc8 11.Nc3.

5.bc6 Nf6 6.Bd3 A) 6...bc6 7.Nf3 (7.Ne2 Qd6 8.Ba3 Qd8 9.Nbc3 e5 10.Bf8 Kf8 11.Ng3) 7...e6 8.Be5 Ng4 9.0–0 f6 10.Bc3 Bd6 11.h3; B) 6...Nc4 7.Bc4 (7.cb7 Bb7 8.Bc4 dc4 9.Nf3 e6 10.Nc3 Rb8 11.Rb1) 7...dc4 8.cb7 Bb7 9.Nf3 e6 10.Nc3 Rb8 11.Rb1; C) 6...Nc6 7.Nf3 (7.Nc3 e5 8.Nge2 Bc5 9.0–0 0–0 10.Ng3 Nb4 11.Be2) 7...g6 8.0–0 Bg7 9.Nc3 0–0 10.Nb5 Bd7 11.Qe2.

5.bc6 Nf6 6.Nf3 A) 6...bc6 7.Be5 (7.Bd3 Rb8 8.Be5 Rb4 9.Nc3 Nc4 10.Bc4 dc4 11.0–0) 7...e6 8.Nc3 Bd6 9.Rb1 0–0 10.Bd3 Nb7 11.0–0; B) 6...e6 7.cb7 (7.Nc3 Nc6 8.h3 e5 9.Be2 e4 10.Nh2 Be7 11.Ng4) 7...Bb7 8.Nc3 a6 9.Bd3 Bd6 10.0–0 0–0 11.Nd4; C) 6...Nc6 7.Bd3 (7.Bb5 e6 8.0–0 Bd6 9.Nc3 0–0 10.Bd3 a6 11.Qe2) 7...g6 8.0–0 Bg7 9.Nc3 0–0 10.Qe2 e5 11.e4.

5.bc6 Nf6 6.Bf6 A) 6...gf6 7.cb7 (7.Nc3 Nc6 8.Nf3 e5 9.Bb5 Rg8 10.g3 Bh3 11.Qe2) 7...Bb7 8.Nc3 Rb8 9.Nf3 Nc4 10.Rb1 e6 11.Nd4; B) 6...ef6 7.cb7 (7.Nc3 bc6 8.Nf3 Bd6 9.Rb1 0–0 10.Bd3 Bd7 11.0–0) 7...Bb7 8.Bb5 Nc6 9.Nc3 Bc5 10.Qh5 a6 11.Bd3.

5.Be2 d4 6.ed4 cd4 7.Nf3 e6 8.Nd4 Bc5 9.Ne6 Be6 10.Bg7 Bd4 11.Bh8 Bh8 12.c3 b6 13.0–0 Nb7 14.Bf3 Bd5 15.Re1 Kf8 16.d4 Qf6 17.Bd5 Ne7 18.Bb7 Rd8 19.Qa4 Qf4 20.Qa7 Qd2 21.Nd2 1–0. Machete99 – kamouraska, ICC, 2002.

5.Be2 e6 6.Nf3 Nf6 7.0–0 Bd6 8.Ng5 (8.Ne5 0–0=) 8...Qd7 (8...0–0 9.f4=) 9.Bf6 (9.Bc3 Qc7 10.f4 Bd7=) 9...gf6 10.Nf3 Rg8 (10...e5 11.Nc3 e4 12.Ne1=) 11.Nc3 f5 12.d4 cd4 (12...Qc7 13.Qd2=) 13.Qd4 (worse is 13.Nd4 Qc7 14.Qd2 Bh2 15.Kh1 Be5–/+; 13.ed4?! Qc7 14.Nb1 Nc4=) 13...Rg4 (better is 13...Qc7!?=) 14.Qh8+/– Bf8? (better is 14...Ke7+/–) 15.Ne5+– (15.Ne5 Qe7 16.Bg4 (16.Ng4?! fg4 17.Qh7 Bd7+–) 16...fg4 17.Ng4+–; 15.Qh7?! Qc7 16.Qh8 Rg7=) 1–0. Wall,Bill – Cowboynjns, internet, 1998.

5.Nf3 f6 6.d3 e5 7.Nbd2 Bd6 8.Be2 g5 (8...Ne7 9.c4=) 9.0–0+= Bd7 10.c4 d4 11.ed4 cd4 12.Ne4 Qe7 13.Nd6 Qd6 14.a4 Ne7 15.Ba3 Qe6 (15...Qc7 16.Nd2 Qd8 17.Bh5 Kf8 18.Qf3+/–) 16.Re1 (16.Nd4 Qb6 17.Nc2 Nf5+–) 16...Nf5 17.Bb4 b6 (17...Qb6 18.Nd2 Kf7 19.Bf3+/–) 18.Ba5 (18.g4 Ne7 19.Nd4 Qf7+–) 18...ba5 19.Qd2 (19.g4!? Ne7 20.Nd4+/–) 19...Qb6+/– 20.Rac1 h6 (20...g4 21.Ne5 fe5 22.Bg4+/–) 21.c5 Qd8 22.Qb2 Be6 23.Bd1 Qd5? 24.Nd2 Nh4 25.f3 g4? 26.Bb3 Qd7 27.Be6 Qe6 28.Qd4!! Rg8 29.f4 Rd8 30.Qe3 Qd5 31.fe5 Qg2 0–1. Fournier,Frederic (1875) – Hedouard,Dorothee, Partie Libre, 2003.

5.f4 Nf6 6.Nf3 Bg4 (6...Bf5 7.Be2=) 7.Be2 (7.h3 Bd7=) 7...Nc4 (7...e6 8.0–0=) 8.Bc4+= dc4 9.0–0 (9.Qe2 Nd5+=) 9...h6 (9...a6 10.a4=) 10.a4 (10.Qe2 Qd5+/–) 10...g6 (10...Qd5 11.h3 Bf3 12.Rf3= (< 12.gf3 Qe6=+)) 11.Na3 Ne4?? (better is 11...c3 12.Bc3 Bg7+/–) 12.Bh8+– f6 13.Nc4 g5 14.d3 Nc3 15.Qd2 Nd5 16.fg5 hg5 17.Qf2 Bh6 18.e4 Nf4 19.Qc5 Qd7 20.b6 Ng2 21.Bf6 ef6 22.Nd6 Kd8 23.Ne5! fe5 24.Rf7 Rc8 25.Rd7 Kd7 26.Qc8 Kd6 27.Qc7+– Ke6 28.ba7 Ne3 29.a8Q (29...Nc2 30.Qe8 Kf6 31.Qce5#) 1–0. orane – lekarka, caissa.com, 2007.

4.e3 c6

5.a4 cb5 6.ab5 a6 (6...Nf6 7.Nf3=) 7.Nf3+= Nc4 (7...Nf6 8.Bd4=) 8.Bc4 dc4 9.ba6 (9.Qe2 Qd5 10.Nc3 Qf5+/–) 9...ba6 (9...Ra6 10.Ra6 ba6 11.Qe2+=) 10.Qe2 (10.Na3 Be6+=) 10...Qc7 (10...Qb6 11.Bd4 Qc6 12.Na3+/–) 11.0–0 (11.Na3 Be6+/–) 11...Bg4+= 12.h3 Bf5 (12...Bh5 13.Na3+=) 13.d3 (13.Be5 Qb7 14.Nd4+/–) 13...c3 14.Nc3 Nf6 15.Na4 g6 16.c4 Bg7 17.Rac1 0–0+/– 18.c5 Rfd8 19.d4 Nd5 20.Rfd1 Rab8 21.Qa6 Nb4 22.Qe2+– Bd3? 23.Rd3 Nd3 24.Qd3 Qa5 25.Nb6 Qb4 26.Bc3 Qa3 27.Ra1 Qb3 28.Nd2 Qe6 29.Qc4 Qc6 30.d5 Qb7 31.Bg7 Kg7 32.e4 f5 33.f3 fe4 34.fe4 e6 35.d6 Rd6 36.cd6 A deflection. 36...Qb6 37.Kh2 Qd6 38.g3 Qd2=+ 39.Kg1?? Qe3–+ 40.Kg2 Rb2 41.Kf1 Qf2# 0–1. Moxie – goulot, Live Game Caissa's Web, 2005.

5.a4 Bd7 6.Na3 a6 (6...Nf6 7.Nf3=) 7.Nf3 cb5 Black is in command 8.ab5 e6 9.c4 (9.Be2 Nf6+=) 9...Nc4 10.Nc4 dc4 11.ba6 ba6 12.Ne5 (12.Bc4 a5+=) 12...Qe7 (better is 12...Rb8!? 13.Nc4 Bb5=) 13.Qf3 Rb8 14.Ba3 Qf6 15.Bf8 (better is 15.Qf6 Nf6 16.Bf8 (16.Bc4 Ba3 17.Nf7 Kf7–+) 16...Rf8 17.Bc4=) 15...Qe5–+ 16.Ra5?? (16.Bg7 Qg7 17.Rc1–+) 16...Qa5 17.Bg7 Rb1 18.Ke2 Ne7 19.Bh8=+ Qa4 20.Qa8? Nc8–+ 21.f4 Qd1 22.Kf2 Qd2 23.Kf3 Qd1 24.Kf2? Rb2?? 25.Bb2+– Qd2 26.Kf3 Qb2 27.Bc4 Qc3 28.Qa6 Ke7 29.Rd1 Qb4 30.Bd3 h6 31.Rb1 Qc5 32.Qc4 Qd6 33.Rb7 Kd8 34.Kf2 Nb6 35.Qd4 Qd4 36.ed4 Nd5 37.Kf3 Ne7 38.Bb5 Nc6 39.Ke3 Kc8 40.Bc6 Bc6 41.Rf7 (41...Bg2 42.Rh7+–) 1–0. Nebe,Lutz – Rahim,J, Clubmeisterschaft, 1989.

5.a4 e5 6.Be5+/– Be6 7.Nf3 Ne7 8.Na3 (8.Be2 Ng6 9.Bc3 f6+/–) 8...f6 9.Bb2 b6 (9...Nf5!?+/–) 10.Nd4 Bf7 11.c3 (11.Bc3 c5 12.Ba5 cd4+/–) 11...c5 12.Nb3 Nb7 13.c4 Nf5 14.d4 (better is 14.Be2!?+/–) 14...cd4= 15.Nd4 (15.ed4 Ba3 16.Ra3 dc4 17.Qe2 Qe7=) 15...Nd4 (15...Bb4 16.Ke2 Nd4 17.Qd4 dc4 18.Qe4 Kf8 19.Rd1= (19.Qb7?? Bh5 20.g4 Bg4 21.Qf3 Qd3; 19.Nc4? Nc5 20.Qf4 Nd3–+)) 16.Qd4+= Bc5 17.Qc3 (17.Qh4 Bb4 18.Ke2 dc4 19.Nc4 Qd5–/+) 17...Rc8 (17...Qe7!? 18.Nc2 d4=) 18.cd5+= Bd5 19.Bc4?? (better is 19.Rd1+=) 19...Qd6 (19...Ba3!? 20.Qa3 Rc4 21.0–0–+) 20.0–0 (better is 20.Nc2 Bg2 21.Rd1–/+) 20...Bg2?? (better is 20...Ba3 21.Ba3 Qd7–+ (21...Rc4?! 22.Qc4 Bc4 23.Bd6 Bf1 24.Bb8–/+)) 21.Kg2+– Na5?! 22.Rfd1 Qc7 23.Be6 Qb7 24.Kg1 Rc7 25.Qd3 Qb8 26.Qe4 Re7 27.Nc4 Nc4 28.Qc4 h5 29.Qe4 Rh6 30.Qc6 Kf8 31.Qc8 Qc8 32.Bc8 Rg6 33.Kh1 Rg5 34.Rd8 Kf7 35.Rg1 (35.Rg1 Rg1 36.Kg1+–; 35.h4!? Rg6 36.Bf5 Rh6+–) 1–0. Nielsen,Joergen Axel – Hansen,Birger, Denmark, 1969.

5.a4 e6 6.Nf3 Bd6?? (6...Nf6 7.Be2=) 7.Be2 (better is 7.Bg7 e5 8.Bh8+–) 7...Nf6= 8.d3 Bd7 9.bc6 Nc6 10.0–0 0–0 11.Nbd2 Rc8 12.e4 de4 13.Ne4 Ne4 14.de4 Bf4 (14...Qc7 15.Qd3 Rfd8 16.Rad1+=) 15.g3 Bh6 16.Bd3 Nb4 17.Rc1?? (better is 17.Ba3 a5 18.Ne5=) 17...Nd3 (better is 17...Bc1!? 18.Bc1 Ba4 19.Qe2 Bc2 20.Bc2 Rc2 21.Qb5–+) 18.cd3 Qa5?? (better is 18...Bc1 19.Bc1 Qa5–+) 19.Rc8 Rc8 20.Ne5 (20.Qb3!?+=) 20...Ba4–/+ (20...Qa4?! 21.Qh5 Rf8 22.f4=) 21.Qf3 Be8 22.Ra1 (22.Bd4 Rd8 23.Bb2 f6–/+) 22...Qb6 (better is 22...Qd2 23.Nc4 Rc4 24.dc4 Qb2 25.Ra7 Qc1 26.Kg2 Qc4 27.Rb7 Qc8–+) 23.Ba3?? (better is 23.Qe2–/+) 23...Qd4–+ 24.Ng4 0–1. Fournier,Frederic – ATTIMI, KasparovChess.com rated blitz game, 2002.

5.a4 Bf5 6.Nf3 Bg4 7.d3 Bf3 8.Qf3 e6 9.Nd2 Bd6?? (better is 9...Rc8 10.Rc1 Nf6=) 10.Bg7+– Ne7 (10...Be5 11.Be5 f6 12.Bc3+–) 11.Bh8 Qb6 12.d4 0–0–0 13.Bf6 Rg8 (13...Rd7 14.Bd3+–) 14.Be7 Be7 15.Qf7 Qd8 16.Qe6 Kc7 17.bc6 Rg6 (17...Nc6 18.Qh6+–) 18.Qe5 Kc6 19.Bb5 Kb6 20.Rb1 a6 21.Bd3 Ka7 22.Bg6 hg6 23.0–0 Bd6 24.Qg7 g5 25.c4! Qb8 (25...Nc4 26.Qb7 Mate attack; 25...dc4 26.Nc4) 26.cd5 Bh2 27.Kh1 g4 28.Qg4 Bc7 29.Qg7 Bd6 30.g3 Bf8 31.Qf7 Qd6 32.Nc4 Qe7 33.Qe7 Be7 34.Na5 Bd8 35.Nb7 (35.Rb7 Ka8 36.Rfb1 Bb6 37.R7b6 Ka7 38.Nc6 Ka8 39.Ra6) 35...Bb6+– 36.Rb6! Kb6 (36...Kb6 37.Rb1 Combination) 37.Rb1 Kc7 38.e4 1–0. Hal1958 – Pytolo98, playchess.de, 2004.

5.a4 f6 6.Bd3 =.

5.a4 f6 6.Nf3 Nc4 (6...e5 7.d4 e4 8.Nfd2=) 7.Bc3 (7.Bc4 dc4 8.Qe2 cb5 9.ab5 Be6+=) 7...e5 8.Bc4 dc4 9.0–0 (9.bc6 bc6 10.Qe2 Be6=) 9...cb5 10.ab5 Bc5 11.d3 cd3 12.cd3 Qb6 13.d4 ed4 14.Bd4 Bd4 15.Nd4 Ne7 16.Nc3 0–0 17.Qb3 Rf7 18.Nd5 Nd5 19.Qd5 Bd7 20.Rab1 Rc8 21.Rfd1 Rc5 22.Qa2 Kf8 (22...Bb5?? 23.Nb5 Rc6 24.Na7+–) 23.Rb2 Be8?? (better is 23...Re7+=) 24.Ne6+– Ke7 (24...Kg8 25.Nc5 Qc5+–) 25.Nd4 Bb5?? 26.Nb5+– Rb5 27.Rb5 Qb5+/– 28.Qa7 Kf8?? 29.g3 Qc6 30.Qa3 Kg8?? 31.Rd8 (31.Rd8 Qe8 32.Re8 Rf8 33.Qf8) 1–0. Valpa – Felipe_Lungov, playchess.de, 2002.

5.a4 Nf6 6.Nf3 Bg4 7.Be2 (7.h3 Bd7=) 7...e6 8.0–0 Bd6 9.h3 (9.Ne5 Be2 10.Qe2 0–0=) 9...Bh5 (9...Bf3 10.Bf3 Nc4 11.Bc3=) 10.d4 (10.d3 0–0=) 10...0–0 (10...Bf3 11.Bf3 Nc4 12.Ra2=+) 11.Nbd2= a6 (11...Qe7 12.Re1=) 12.ba6 ba6 13.Qc1 (13.Ba3 Ba3 14.Ra3 Qd6=) 13...Qc7 14.Nb3 (14.Ba3 c5=) 14...Rfb8=+ 15.Na5 Qa5 16.Ba3 (16.c4 Ne4 17.c5 Bc7=+) 16...Bb4 (16...Ba3 17.Ra3 c5 18.g4=+) 17.g4= White is in command 17...Bg6 18.Ne5 Rb6 (18...Bd2 19.Qd1 Rb6 20.c4=) 19.Bb4+= (< 19.Ng6 fg6 20.c4 Bc3=+) 19...Qb4 (19...Rb4? 20.Nc6 (20.Ng6 hg6 21.c4 Ra4=+) 20...Qb6 21.Nb4 Qb4 22.c4+–) 20.a5 Rb7 21.Nc6 (21.Rb1 Qe7+=) 21...Qc3= 22.Ne5 Qc2 (22...Bc2 23.Ra2 Rc7 24.Qb2+=) 23.Qc2+= Bc2 24.Rfc1 Bg6? (better is 24...Rb2!? 25.Ba6 Ra6+–) 25.Ba6!+– Rba7 26.Rc8 Rc8 27.Bc8 Kf8? 28.a6 Ne8 29.Bb7 Nd6 30.Nc6 Rb7 31.ab7 Nb7 32.Ra8 (32...Nd8 33.Rd8#) 1–0. Szymanski,Marcin – Rubinowski,Sebastian, Zbaszyn, 1993.

5.bc6 Nc6 6.Bb5 Qb6 7.Nc3 e6 8.Rb1 Qa5 9.Nge2 (9.Nf3 a6 10.Bc6 bc6=) 9...a6 10.Bc6 bc6 11.Nd4 Bd7 12.0–0 Bb4? (better is 12...Nf6=) 13.Nb3+/– Qc7 (better is 13...Qd8!? 14.Nd5! Bf8+–) 14.Nd5!+– cd5 (14...cd5 15.Bg7 Combination; 14...ed5 15.Bg7 Combination) 15.Bg7 Bd6 16.Bh8 Bh2 17.Kh1 f6?? (17...Bd6+–) 18.Qh5 Ke7 (18...Kf8 19.Qh2 Qh2 20.Kh2+–) 19.Qh2 (better is 19.Qh7 Kd6 20.Qh2 e5 21.f4+–) 19...Qh2 20.Kh2 e5 (20...Nh6 21.Bf6! Kf6+–) 21.d4 (21.d4 Nh6 22.Bg7+–) 1–0. Jean,Ludovic (1785) – Vlahovic,Velimir, Skopje MKD, 4th Karpos Open, 2014.

5.bc6 Nc6 6.Nf3 Qb6 7.Bc3 f6 =.

5.bc6 Nc6 6.Nf3 Bg4 7.Be2 e6 8.0–0 Nf6 9.d3 Bd6 10.Nbd2 e5 11.h3 Bh5 12.c4 e4 (12...0–0!?=) 13.de4+/– de4 14.Nd4 (14.Ng5 Be2 15.Qe2 Be5 16.Nde4 Ne4 17.Ne4 0–0+/–) 14...Nd4 (14...Be2 15.Qe2 Qd7 16.Nc6 Qc6 17.Bf6 gf6 18.Qg4+/–) 15.ed4 (15.Bh5 Bb4+/–) 15...Be2 (15...Bg6 16.c5 Bf4 17.Qa4 Kf8 18.Rad1+=) 16.Qe2+/– 0–0 17.Ne4 Ne4 18.Qe4 Re8 19.Qg4 (worse is 19.Qb7 Rb8 20.Qa7 Rb2–/+) 19...Qf6 20.Rab1 Re6?? (better is 20...b6+/–) 21.d5+– (21.d5 h5 22.Bf6 hg4 23.de6 gf6 24.Rfd1+–) 1–0. Fournier,Frederic (1885) – chaverra, Active (5/0), 2005.

5.d3 cb5+= 6.Nf3 Nc6 7.Be2 e5 (better is 7...Qd6!?+=) 8.Ne5= Ne5 9.Be5 f6 10.Bb2 Bc5 11.Nc3 (11.d4 Qa5 12.c3 Bd6+/–) 11...d4 12.Nb5?? (12.Ne4 Bb4 13.c3 dc3 14.Bc3 Bc3 15.Nc3 Be6+/–) 12...de3?? (better is 12...Qa5 13.Kf1 Qb5 14.Bd4 Bd4 15.ed4 Ne7–+) 13.fe3 Be3 14.Bc1?? (14.Bh5 g6 15.Qe2+=) 14...Ne7?? (better is 14...Bc1 15.Bh5 g6 16.Rc1 Qa5 (16...gh5?! 17.Qh5 Kf8 18.0–0–/+) 17.c3 Qb5–+ (17...gh5?! 18.Qh5 Kd8 19.Qc5+=)) 15.Be3+/– 0–0?? 16.0–0+– Nf5 17.Bc5 Re8 18.Bg4 b6? 19.Ba3 Ne3= 20.Qf3? Nf1?? 21.Rf1 Bg4 22.Qg4 a6? 23.Nc3 b5 24.Ne4 a5?? 25.Nf6+– Kf7 26.Ne8 Ke8 27.Rf8 1–0. Fournier,Frederic (1800) – vircof (1645), Active (1/1), 2005.

5.Bd4 a6 =.

5.Bd4 Nf6 =.

5.Nf3 a6 6.a4 Nc4 (6...Nf6 7.Nc3=) 7.Bc4+= dc4 8.bc6 b5 (better is 8...bc6!? 9.Na3 Rb8 10.Nc4 Be6+/–) 9.ab5+– a5 (better is 9...Rb8+–) 10.b6?? (better is 10.d3+–) 10...Qb6+= 11.Bd4 Qc6= 12.Nc3 Bg4 13.0–0 f6 14.Qb1 Bf3 15.gf3 Qf3 16.Qb5= Kf7 17.Qc4 e6 18.Qc7 Be7 19.Ra5 Ra5 20.Qa5 Nh6 21.Qc7 Ng4 22.Bc5 Re8 23.Be7 Re7 24.Qg3 Ne5 25.Qf3 Nf3= 26.Kg2 Nd2 27.Rd1 Nc4 28.Ne4 g5 29.Nd6 Nd6= 30.Rd6 (30.Rd6 Rc7 31.Rd2=). wach – alex12345, Caissa.com, 2004.

5.Nf3 a6 6.ba6 ba6 7.Nc3 e6 8.Rb1 Bb4? (Better is 8...Nf6=) 9.Nd5!+– cd5? (9...ed5 10.Bg7) 10.Bg7 Bd2 (10...Nc6+–) 11.Nd2 f6 (11...Ne7 12.Bh8 Ng6 13.Bg7+–) 12.Bh8 Qe7 13.Qg4 Qf7 (13...Qf8 14.Qh4+–) 14.Qa4 Bd7 15.Qa5 h6 (15...Ne7 16.Qc3 Rc8 17.Qf6 Rc2 18.Rb8 Rc8 19.Qb2+–) 16.Ba6 Qh7 17.Bd3 Qh8 18.Qa8 Kf7 19.Rb7 Ke7 20.Qa3 Kd8 21.Qf8 Be8 22.Qd6 1–0. market (2285) – colonyking1, GameColony.com, 2002.

5.Nf3 a6 6.ba6 ba6 7.Bd3 h6 8.0–0 e6 9.Nc3 Nf6 10.Rb1 Nc4 (10...Qc7!?+/–) 11.Bc4+– dc4 12.Qe2 Nd5 (12...a5 13.Qc4 Qc7 14.d3+–) 13.Qc4 a5 14.Qc6 Bd7 15.Qc4 Rc8 16.Qe2 Bc6 (16...Nf6 17.e4+–) 17.Ne5 Ba8 (17...Nc3 18.Bc3 Qd5+–) 18.Qb5 Ke7 19.Ba3 Kf6 (19...Nb4 20.Rb4 ab4 21.Qb4 Ke8 22.Qb5 Bc6 23.Nc6 Qd7 24.Bf8 Rf8+–) 20.Ne4 Kf5 (20...Ke5 21.g4 Ke4 22.f4 Rc2 23.Rb3 Rc3 24.Rc3 Nc3 25.Qc4 Qd4 26.Qd4) 21.g4 Ke5 (21...Ke4 22.Qd3 Ke5 23.Qd4) 22.f4 Ke4 23.Qd3 1–0. pierred – anony, internet, 2015.

5.Nf3 a6 6.ba6 b6 +=.

5.Nf3 Qb6 6.Qc1 (6.Nc3 Nc4 7.Bc4 dc4+=) 6...cb5 (6...Nc4 7.a4=) 7.Nc3 e6 8.Bb5 Nc6 9.0–0 Nf6 10.Nd4 (10.Ba3 Bd7+=) 10...Bd6 11.h3 (11.Ba3 Qc7 12.Bd6 Qd6=) 11...0–0+= 12.Nc6 bc6 Black launches an attack. 13.Be2 Rb8 14.Nd1 Qa5 15.f4 (15.Bf6 gf6 16.c3 Ba6 17.Ba6 Qa6+=) 15...Ne4–/+ 16.d3 Ng3 17.Rf2 Qe1 18.Bf1 Qf1 (18...f6 19.Ba3 c5 20.c4+=) 19.Rf1+= Ne2 20.Kf2 Nc1 21.Bc1 (21.Rc1 f6+=) 21...e5–/+ 22.fe5 Be5 23.d4 (23.c3 Re8–/+) 23...Bf6 (23...Bd6 24.a4–/+) 24.Ba3 Re8 25.Nc3 Bh4 26.Kf3 Ba6 (26...Bf5 27.Bc5 Rb2 A) 28.Ba7 Rc2 (28...Bc2?! 29.g3 Bg5 30.Rfe1–/+) 29.Rac1 Be4 30.Kg4 Rg2 31.Kh4 Re6 32.Rf6 Rf6 33.Ne4 Rh6; B) 28.Rac1–/+) 27.Rfb1+= Bg5 Attacks the backward pawn on e3 (27...Rb1 28.Rb1 Bg5 29.Nd1+=) 28.Rb8= Rb8 29.Bc5 Bc4 30.Ba7 Rb2 31.Rb1 (31.Rc1 Ba2 32.Na2 Ra2=) 31...Rb1+= 32.Nb1 Ba2 33.Nd2 Be7 34.c3 Bd6 35.Ke2 h5 36.e4 f6 37.Ke3 g5 38.Ke2 (38.Kd3 de4 39.Ne4 Bb1 40.Ke3 Bf4 41.Kf3 Kf7+=) 38...Kf7 39.Bb6 Bf4 40.Bd8 Bd2 41.Kd2 de4 42.Ke3 ½–½. Zhukov,Yuri – Goncharenko,Nikolay, Doroshkevich Mem, 2007.

5.Nf3 Nc4 6.Bc4 dc4 7.a4 cb5 8.ab5 a6 9.0–0 e6 10.Nc3 Bb4 11.Ne4 Nf6 12.Ne5?? (better is 12.Bf6 gf6 13.ba6+/–) 12...Ne4–+ 13.c3? (13.Qg4 f6 14.Qh5 Ke7 15.Qf7 Kd6 16.Nc4 Kc5 17.ba6 A) 17...Kc4? 18.ab7 Ra1 A1) 19.bc8R?! Qc8 20.d3 Kb5 21.Ra1 Nc3+– (21...Qc2?? 22.Qb7 Kc5 23.Bd4 Kd6 24.Ra6 Qc6 25.Rc6 Kd5 26.Rb6); A2) 19.Ra1+–; B) 17...ba6 18.Qg7 Kc6 19.Qg4+=; C) 17...Ra6?! 18.Qg7 Rg8 19.Qh6=+; D) 17...Ng5 18.ab7 Ra1 (18...Nf7?? 19.ba8Q Ne5 20.Be5 fe5 21.Ne5+–) 19.Ra1 Nf7+/–) 13...Ba5 (better is 13...Bd6!? 14.d4 Be5 15.de5 Qd1 16.Rfd1–+) 14.Nc4 ab5 15.Na5 Ra5 16.Ra5 Qa5 17.Qc2 Qa2 18.Ra1 Qc4?? (better is 18...Qd5 19.d3 Nc5–+) 19.d3+= Qc6 20.de4 0–0 21.Rd1 Qc4 22.Qd3 Qd3 23.Rd3 (23...e5 24.Rd5+=) +=. valpa – pasanbada, HCL–C1898 playchess.de, 2003.

5.Nf3 Nc4 6.Bc4 dc4 7.bc6 bc6 8.Ne5 (8.Qe2 Qb6 9.Bc3 Rb8+=) 8...Qd5+= 9.0–0 (9.Qf3 Qf3 10.gf3 f6 11.Nc4 e5+=) 9...f6 (9...Rb8 10.Bd4 c5 11.Bc3+=) 10.Nf3= Nh6 (10...Bg4 11.Nc3 Qh5 12.Rb1=) 11.Nc3 Qd6 12.Ne4 Qd5+= 13.Ng3 Ba6 14.e4+/– Qd6 15.e5+– Qd5 16.ef6 ef6+/– 17.Re1 Kd8 18.Nd4 Kc7 19.Ne6+– Kb6? 20.Rb1 Bb5 21.a4! Ba4 22.Bd4 Ka5 23.Bc3 Ka6 24.Nc7# 1–0. Wall,Bill – Peng, internet, 1998.

5.Nf3 Bd7 6.Na3 a6 7.ba6 ba6 8.c4 dc4 9.Nc4+– Nc4 10.Bc4 Nf6 11.0–0 Bf5 (11...e6 12.Qc2+–) 12.Ne5 (12.Qa4 Bd7+–) 12...Qd6?? (12...e6 13.Qa4 Qc7 14.Nc6 Qd7+–) 13.Bf7 (13.Bf7 Kd8 14.Rc1+–) 1–0. Pamieci Krzysztofa P – napohybel, internet, 2016.

5.Nf3 Bd7 6.Na3 a6 7.ba6 ba6 8.c4 Nf6 9.d4 dc4 (9...Rb8 10.Bc3=) 10.Nc4+= Nc4 11.Bc4 Nd5 (11...Qa5 12.Qd2 Qd2 13.Nd2+=) 12.0–0+/– Be6 (12...e6 13.e4 Nb6 14.Be2+/–) 13.Ne5 Nc7?? (better is 13...Qd6+/–) 14.Be6+– Ne6 (14...fe6 15.Qh5 g6 16.Ng6 hg6 17.Qh8+–) 15.Qf3 (15.Nc6?! Qd5 16.Ne5 f6+–) 15...Rc8 (15...Qc8 16.Qf7 Kd8+–) 16.Qf7# 1–0. Bonetti,Shane – Heywood, ICC, 2003.

5.Nf3 e6 6.c4 dc4 (6...Nc4 7.Bc4 dc4 8.bc6 bc6 9.Na3=) 7.bc6= bc6 (7...b5 8.d3=) 8.Bc3 (better is 8.Qa4+=) 8...Ba6?? (better is 8...Nb7=) 9.Qa4+– Bb5 (9...Rb8 10.Ba5 Bb5 11.Bd8 Ba4 12.Bc7+–) 10.Qa5 (< 10.Ba5 Qf6 11.Bc3 Ba4 12.Bf6 Nf6 13.Bc4 Bb5=) 1–0. Wall,Bill – Oceanu, internet, 2004.

5.Nf3 e6 6.Ne5 f6?? (better is 6...Nf6=) 7.Qh5+– g6 8.Ng6! hg6 9.Qh8 Ne7 (9...Kf7 10.Qh7 Bg7 11.h4+–) 10.Bf6 Kd7 11.Nc3 c5 12.h4 d4 (12...b6 13.d4+–) 13.ed4 cd4 14.Ne4 a6 (14...b6 15.Bg5 Nb7 16.Rh3+–) 15.Bg5 (better is 15.Bg7 ab5 16.Bf8+–) 15...ab5 (15...Nac6 16.bc6 Kc6+–) 16.Qd4 Kc7 17.Bf4 Kc6 (17...e5 18.Qe5 Kd7 19.Nf6 Kc6 20.Qb5) 18.Qc5 Kd7 19.Nf6 1–0. MarRam – Cem,Alan, internet, 2010.

5.Nf3 Bf5 6.Be2 Nc4 (6...Nf6 7.0–0+=) 7.Bc4 dc4 8.bc6 bc6 9.Nc3 e6 10.0–0 (10.Ne5 Nf6+/–) 10...Bd6 (10...Bg4 11.Rb1+=) 11.Nb5 cb5? (better is 11...Bf8 12.Nbd4 Be4+=) 12.Bg7+– f6 13.Bh8 Qe7 14.Nd4 Bg6 15.Nb5 0–0–0 16.Qe2 Nh6 17.Qc4 Kb8 18.Rfb1 (18...Qb7 19.Na7+–) 1–0. woschkat (1995) – katchum (1690), net–chess.com, 2001.

5.f4 cb5 6.Bb5 Bd7 7.Qe2 a6 (7...Rc8 8.Na3=) 8.Bd7 Qd7 9.Nf3 Nf6 (9...Rc8 10.Ne5 Qf5 11.d3=) 10.Ne5 (10.Bf6 ef6 11.Qd3 Nc4+=) 10...Qc7= 11.d3 e6 12.0–0 Bd6 (12...Bc5 13.Nf3=) 13.Ng4 Ng4 14.Qg4 0–0–0 (better is 14...Rg8!? 15.Qh4 h6=) 15.Qg7+/– (15.Bg7? f5 16.Qg5 Rhg8–+) 15...Qc2?? (better is 15...Nc6+/–) 16.Rc1+– Qc1 17.Bc1 Bc5 18.Qf7 Rdf8 19.Qe6 Kb8 20.d4 Rf4 21.Qe5 Ka7 22.Qf4 Rf8 23.dc5 Rf4 24.ef4 b6 25.cb6 Kb6 26.f5 Nc6 27.f6 Nd8 28.Ba3 Kc6 29.Nc3 d4 30.Ne4 Kd5 31.Ng5 h6 32.Be7 Ne6 33.f7 Ke5 34.Ne6 Ke6 35.f8Q Kd7 36.Rc1 Ke6 37.Qf6 Kd7 38.Qd4 Ke6 39.Re1 Kf7 40.Bh4 Kg8 41.Re7 Kf8 42.Qg7# (42.Qd8#) 1–0. Lais,Klaus Joerg – Mang,Thomas, Saarland–chC, 1992.

5.Nf3 cb5

6.Bb5 Bd7

7.Qe2 Rc8 8.Ne5 Nf6 =.

7.Be2 e6 8.c4 (8.Ne5 Nf6=) 8...Nf6 (8...Nc4 9.Bc3–/+) 9.0–0 (9.cd5 Nd5 10.0–0 Rc8=) 9...Bc6 (better is 9...Nc4!? 10.Be5 Ne5 11.Ne5 Bd6–/+) 10.cd5= Bd5 11.Nc3 Nc4 (11...Bc6!?+=) 12.Bc4+/– Bc4 13.Qa4 Qd7?? (better is 13...b5 14.Nb5 Bb5 15.Qb5 Qd7+/–) 14.Qc4+– Rc8 15.Qe2 Bd6 16.h3 0–0 17.Nb5 Rc2 18.Bf6 gf6 19.Nfd4 Rb2 20.Na7 Be5 21.a4 Bd4 22.ed4 Qd4 23.Nb5 Qd2 24.Qf3 f5 25.Qb7 Qg5 26.Rab1 Rd2 27.Qf3 Kh8 28.Ra1 Rg8 29.h4! Qg6 30.a5 Rd3 31.h5 Qg5 32.Qg3?? Rg3–+ 33.fg3 Qg3 (34.Rf2 Ra8–+) 0–1. wlittle (2300) – mgomdysey (2135), net–chess.com, 2004.

7.Bd7 Qd7=

8.0–0 e6 =.

8.Ne5 Qc7 9.c4 dc4 10.Na3 +=.

8.Ne5 Qe6 9.0–0 (9.Bd4 Nc6 10.Nc6 Qc6=) 9...Nc4 (9...Nf6 10.Na3=) 10.Nc4+= dc4 11.Na3 (11.d3 cd3 12.cd3 Qa6+=) 11...Nf6 (11...Qa6 12.Qh5+=) 12.Qf3 (12.d3 cd3 13.cd3 a6+=) 12...Ne4+/– 13.Rfd1 (13.d3 c3 14.Bc1 Nd6+=) 13...Qc6+= 14.d3 cd3 (14...c3 15.Qe4 (15.de4? cb2 16.Rab1 e6–+) 15...Qe4 16.de4 cb2 17.Rab1+=) 15.cd3+/– Nc5 16.Qc6 (16.e4 e6+/–) 16...bc6 17.Rac1 (17.Nc4 Nd7+=) 17...Na4 18.Be5 (18.Ba1 Kd7+/–) 18...e6 (18...f6 19.Bg3 Nb2 20.Rd2+=) 19.Nc4 Be7 (better is 19...f6!? 20.Bg3 Rd8+=) 20.Bg7+– Rg8 21.Be5 (21.Ba1 c5+–) 21...f6 22.Bg3 (22.Bd6 c5+/–) 22...Kf7 (22...Rd8 23.Na5 c5 24.Nc6+/–) 23.Na5 (23.Nd6 Bd6 24.Bd6 Rac8+/–) 23...Rac8 (23...c5 24.a3+/–) 24.Nc6 (better is 24.Rc6 Nc3 25.Rd2+–) 24...Nc3?? (better is 24...Bc5+/–) 25.Rd2 (better is 25.Rc3 a6 26.Rb1+–) 25...Na4?? (better is 25...Rc6 26.Rdc2 Rgc8–+) 26.Rdc2+– Bc5 (26...Ba3 27.Na7 Rc2 28.Rc2+–) 27.Rc5 Nc5 28.Rc5 a6 (28...Ke8 29.Rc4 Kd7 30.Na5+–) 29.d4 h5 30.f3 Rg5 (30...Ke8 31.Nb8 Rc5 32.dc5+–) 31.Ne5 fe5 (31...Re5 32.Be5 (worse is 32.de5 Rc5 33.ef6 Kf6–/+; 32.Rc8 Re3 33.Rc7 Kg6+–) 32...Rd8 33.Bc7+–) 32.Rc8 (32.Rc8 ed4 33.ed4+–) 1–0. Wall,Bill – Paddy, internet, 2002.

8.Ne5 Qd6

9.Na3 a6 A) 10.Qh5 g6 (10...Qe6 11.Qh4 Nc6 12.Qa4 Nf6 13.Rb1 Ne4 14.Bd4 f6 15.Nc6 Qc6) 11.Qh4 Nf6 12.Qa4 Nc6 13.Nb5 Qd8 14.Nc6 ab5 15.Nd8 Ra4; B) 10.0–0 Nc6 (10...Nf6 11.c4 Nc6 12.d4 e6 13.Rc1 Be7 14.cd5 Qd5 15.Nac4 Ne5) 11.Nc6 Qc6 12.Rc1 b5 13.h3 h5 14.d3 b4 15.Nb1 Qa4; C) 10.Qg4 Nf6 (10...Nc6 11.Qa4 Nf6 12.f3 Qb4 13.Qb4 Nb4 14.0–0 e6 15.g4 Rc8; 10...b5 11.Qh5 g6 12.Qh4 Nf6 13.0–0 Bg7 14.Nd3 0–0 15.Qb4 Qb4; 10...e6 11.0–0 Qb4 12.Qf3 Nf6 13.Nd3 Qh4 14.g3 Qe4 15.Qe2 Qa4; 10...Rd8 11.Qh5 g6 12.Qh4 Nf6 13.0–0 Nc6 14.Nc6 bc6 15.Qg3 Qg3; 10...Nh6 11.Qa4 Nc6 12.0–0 Qb4 13.Qb3 Qb3 14.ab3 Ne5 15.Be5 Rc8) 11.Qa4 Nc6 12.0–0 Qb4 13.Qb4 Nb4 14.c4 e6 15.cd5 Nbd5; D) 10.c4 Nf6 (10...Nc6 11.Qa4 Nf6 12.0–0 Qb4 13.Qb4 Nb4 14.cd5 Nbd5 15.Rac1 e6) 11.Rc1 Nc6 12.c5 Qc7 13.Qa4 Qa5 14.Qa5 Na5 15.f3 e6.

9.Na3 Nc6 10.Nb5 Qd8 11.0–0 (11.Rb1 a6 (11...Nf6 12.0–0 a6 13.Nc6 bc6 14.Nd4 Qc7 15.f4 e6) 12.Nc6 bc6+= 13.Nd4 Qd7 14.0–0 Nf6 15.Nf3 g6; 11.Qh5 Ne5 12.Be5 Nf6 13.Bf6 ef6 14.Nc3 d4 15.Nd5 de3) 11...a6= (11...Nf6 12.f4 h5 13.Nd4 Nd4 14.Bd4 Qa5 15.Qe2 Ne4) 12.Nc6 bc6 13.Nd4 e5 (13...Qd7 14.Rb1 Nf6 15.Bc3 e6) 14.Nb3 (worse is 14.Nc6 Qb6 15.Ne5 Qb2–/+; 14.Nf3 f6 15.Nh4 Nh6) 14...Bd6 (14...Nf6 15.Be5 Bd6) 15.f4 Nh6 (15...Qc7!?+=) 16.fe5+/– Be7 17.Nd4 0–0? (better is 17...c5!? 18.Nc6 Qc7 19.Ne7 Qe7+/–) 18.Nc6+– Qc7 19.Ne7 Qe7 20.Bc3 Rac8 21.Rb1 Rfe8 22.Qf3 Qe6 23.Rb4 Rc3 24.dc3 d4?? (24...Qe5 25.Rb6 a5+–) 25.ed4 Qa2 26.Rfb1 Qc2 (26...Kh8+–) 27.Qc6 Rf8 28.Rb8 g6 (28...Qb1 29.Rb1 a5+–) 29.Rf8 Kf8 30.Rb8 1–0. pierre – ujcy, internet, 2011.

9.Na3 Nf6 A) 10.Nb5 Qc5 (10...Qb6 11.a4 Nc6 12.0–0 e6 13.c4 Rc8 14.a5 Qa6 15.Qe2 Ne5; 10...Qb8 11.f4 a6 12.Nd4 Qc7 13.0–0 e6 14.Rb1 Nc4 15.Nc4 dc4) 11.a4 a6 12.Bd4 Qc8 13.Nc3 Nc6 14.Qf3 Nd4 15.ed4 e6; B) 10.0–0 Qa6 11.f4 Rd8 12.Rc1 e6 13.c4 Ba3 14.Qa4 Nc6 15.Qa6 ba6; C) 10.c4 Nc6 (10...a6 11.Rc1 Nc6 12.c5 Qe6 13.Qa4 0–0–0 14.Nc6 Qc6 15.Qb4 e6; 10...Rc8 11.Rc1 Nc6 12.Nb5 Qd8 13.Qa4 a6 14.Na7 b5 15.cb5 Na7; 10...Nc4 11.Qa4 Nd7 12.Nac4 dc4 13.Nc4 Qa6 14.Qa6 ba6 15.Ke2 e6; 10...Qb4 11.Nb5 Qb2 12.Nd3 Qa1 13.Qa1 Rc8 14.cd5 a6 15.Nc3 e6) 11.Nb5 Qb8 12.f4 dc4 13.Nc4 a6 14.Nd4 Nd4 15.Bd4 b5.

9.Qe2 a6 A) 10.0–0 Nf6 (10...Nc6 11.Nc6 Qc6 12.Bd4 Nf6 13.Nc3 e6 14.Rab1 Bd6 15.Rb6 Qc7; 10...Nh6 11.Bd4 Nc6 12.Nc6 bc6 13.f4 f6 14.d3 Nf5 15.Nd2 Rb8) 11.f4 Qc7 12.Bd4 Qc2 13.Nc3 Nc4 14.Nd5 Nd5 15.Nc4 Rd8; B) 10.d4 Nf6 (10...Nc6 11.0–0 Nh6 12.Nd2 Nf5 13.Nc6 Qc6 14.c4 Rc8 15.cd5 Qd5; 10...Nh6 11.Nd2 Rc8 12.Rc1 f6 13.Nd3 Nc4 14.Nc4 Rc4 15.0–0 Nf5; 10...Qb6 11.Bc3 Rc8 12.Qd3 Nf6 13.0–0 Nc6 14.Nf3 Qc7 15.Nbd2 Nd8; 10...Rc8 11.0–0 Nf6 12.Nc3 Nc6 13.f4 e6 14.Rad1 Be7 15.Rf3 Qb4; 10...h5 11.0–0 Nf6 12.Nd2 Ng4 13.f3 Ne5 14.de5 Qc7 15.Rac1 b5; 10...Rd8 11.Nd2 Nf6 12.0–0 Nd7 13.f4 Qc7 14.Qd3 Rc8 15.Rac1 Ne5; 10...g6 11.Nd2 Bg7 12.0–0 Nc6 13.Nc6 Qc6 14.c4 Nf6 15.e4 de4; 10...b5 11.Nd2 Nf6 12.a4 b4 13.c4 Nc6 14.Rc1 Nd7 15.Nc6 Qc6) 11.0–0 Nc6 12.Nd2 b5 13.Ndf3 Nd7 14.e4 Rd8 15.ed5 Qd5; C) 10.f3 f6 (10...Nh6 11.Na3 f6 12.Nd3 b5 13.c3 Nc4 14.Nc2 Nf5 15.0–0 e6; 10...Rc8 11.Na3 f6 12.Nd3 b5 13.c3 Nc4 14.Nc4 bc4 15.Nb4 Nh6; 10...Nf6 11.0–0 Rc8 12.Na3 b5 13.Nd3 g6 14.Qf2 Nc6 15.e4 d4; 10...b5 11.0–0 Nf6 12.Bd4 Rc8 13.Nc3 b4 14.Na4 Nc4 15.f4 g6; 10...Nc6 11.Nc6 Qc6 12.Bd4 Qc2 13.Nc3 Nf6 14.0–0 e6 15.e4 de4; 10...Qc7 11.0–0 Qc2 12.Nd3 Nc4 13.Rc1 Qa4 14.Bd4 Nf6 15.Nc3 Qc6; 10...Rb8 11.0–0 Nf6 12.f4 Rc8 13.Nc3 b5 14.Qd3 b4 15.Na4 Ne4) 11.Nd3 Nc4 12.Nc3 f5 13.0–0 Nf6 14.Rab1 Rc8 15.Ba1 b6; D) 10.a4 Nc6 (10...Nh6 11.0–0 f6 12.Nd3 Nc4 13.Nc3 e6 14.a5 Be7 15.e4 0–0; 10...Nf6 11.0–0 Rc8 12.Na3 Nc6 13.Nd3 g6 14.Bf6 Qf6 15.c4 e6; 10...h5 11.f4 Nc6 12.0–0 Nf6 13.Bd4 h4 14.Nc3 h3 15.g3 Nd7; 10...Rc8 11.Qg4 Rc7 12.Na3 Nf6 13.Qf4 e6 14.Bc3 Nc6 15.0–0 Be7; 10...Rb8 11.f4 Nf6 12.0–0 Rc8 13.Ba3 Qc7 14.Nc3 Nc4 15.Nc4 Qc4; 10...e6 11.Nf7 Kf7 12.Qh5 g6 13.Qf3 Ke8 14.Bh8 Ne7 15.Nc3 Nec6; 10...Qc7 11.Na3 Nc6 12.f4 Nf6 13.0–0 e6 14.c4 Be7 15.cd5 ed5) 11.f4 Nf6 12.0–0 h5 13.Bd4 Nd4 14.ed4 h4 15.Nc3 h3; E) 10.Na3 Nc6 (10...Nf6 11.0–0 g6 12.c4 Bg7 13.cd5 Qd5 14.d3 0–0 15.e4 Qd6; 10...e6 11.0–0 Nf6 12.c4 Qc7 13.d4 Ba3 14.Ba3 Nc4 15.Rfc1 Qa5; 10...g6 11.Qg4 b5 12.Nf7 Kf7 13.Bh8 Qa3 14.Qf3 Ke6 15.Qh3 Kd6; 10...h5 11.0–0 Nf6 12.Rab1 Nc6 13.Nc6 Qc6 14.c4 Qd6 15.f3 Rc8; 10...Nh6 11.0–0 Nc6 12.Nc6 bc6 13.Rab1 Qg6 14.c4 Nf5 15.g3 e6) 11.Nc6 Qc6 12.0–0 b5 13.e4 de4 14.c4 b4 15.Nc2 Rc8; F) 10.Bd4 Nc6 (10...Nf6 11.Nc3 Nc6 12.Nc6 bc6 13.Bf6 gf6 14.Rb1 f5 15.Qd3 Rg8) 11.Nc6 bc6 12.f4 Nf6 13.0–0 Nd7 14.a4 c5 15.Bc3 Rb8; G) 10.h3 Nf6 (10...Nh6 11.0–0 f6 12.Nd3 Nc4 13.Nc3 Nf5 14.e4 Nd4 15.Qh5 g6; 10...Rb8 11.0–0 Nf6 12.f4 b5 13.d3 Rc8 14.a3 g6 15.Bc3 Nc6; 10...b5 11.a4 b4 12.0–0 Nf6 13.d4 Qc7 14.Ra2 Ne4 15.Nd2 Qc2; 10...Qc7 11.0–0 Nf6 12.Nd3 e6 13.Be5 Bd6 14.Bd6 Qd6 15.Nc3 0–0; 10...Nc6 11.Nc6 Qc6 12.Bd4 Qc2 13.Nc3 e6 14.Rb1 b5 15.0–0 Nf6) 11.0–0 Rc8 12.Na3 Nc6 13.Nc6 Rc6 14.c4 e6 15.Rac1 Qb4; H) 10.d3 Nh6 (10...Nc6 11.Nc6 bc6 12.Nc3 Nf6 13.0–0 Qc7 14.e4 d4 15.Nd1 e5; 10...Nf6 11.0–0 Nc6 12.Nc6 Qc6 13.Bd4 e6 14.Nd2 Be7 15.Rac1 Rc8; 10...h5 11.f4 Nf6 12.0–0 h4 13.Ba3 Qc7 14.Nd2 h3 15.g3 Qc2; 10...Qc7 11.Bd4 Nc6 12.Nc6 bc6 13.f4 Nf6 14.Nc3 e6 15.0–0 Be7) 11.Nd2 f6 12.Nef3 Rc8 13.c3 Kf7 14.0–0 e5 15.e4 Nc6; I) 10.f4 Nc6 (10...Rc8 11.Ba3 Qd8 12.Nc3 Nc4 13.Nc4 Rc4 14.e4 Nf6 15.ed5 b5; 10...Nf6 11.Ba3 Qe6 12.Nc3 Nd7 13.Nd7 Qd7 14.0–0 e6 15.Bf8 Rf8; 10...Nh6 11.Ba3 Qe6 12.0–0 Nc6 13.Nf3 b5 14.Bc5 Qf5 15.Nc3 e6; 10...b5 11.Bd4 Rc8 12.Nc3 Nf6 13.Nd3 Nc4 14.0–0 Ne4 15.Ne4 de4; 10...Qc7 11.Nc3 Nf6 12.Ba3 Nc6 13.Rb1 e6 14.Bf8 Rf8 15.0–0 0–0–0; 10...Qc5 11.Ba3 Qc7 12.Nc3 Nf6 13.0–0 e6 14.Bf8 Rf8 15.Rab1 Nc6) 11.0–0 Nf6 12.Nd3 d4 13.Na3 Qd5 14.Rfe1 de3 15.de3 0–0–0.

9.Qe2 Nc6 A) 10.Nd3 Nf6 (10...h5 11.0–0 Nf6 12.Ba3 Qc7 13.Nc3 d4 14.Nb5 Qa5 15.Rfb1 a6; 10...a6 11.0–0 Nf6 12.Nc3 h5 13.h3 e6 14.Rab1 h4 15.Rfe1 Qc7; 10...Nb4 11.Nb4 Qb4 12.Bd4 Nf6 13.Nc3 Qc4 14.Rb1 b6 15.d3 Qc6; 10...e6 11.Nc3 Nf6 12.0–0 Be7 13.Nb5 Qd7 14.Ne5 Ne5 15.Be5 0–0; 10...Qd7 11.Nc3 Nf6 12.0–0 e6 13.f4 h5 14.Nb5 Be7 15.Ne5 Ne5; 10...Rc8 11.Nc3 Nf6 12.Nb5 Qd7 13.0–0 e6 14.f4 a6 15.Nc3 Bd6; 10...h6 11.Nc3 a6 12.0–0 Nf6 13.Na4 b5 14.Nac5 Ne4 15.Nb3 Qg6; 10...Rd8 11.0–0 Nf6 12.Nc3 a6 13.Na4 Qc7 14.Bf6 gf6 15.Qh5 Ne5; 10...Nh6 11.Nc3 a6 12.0–0 Nf5 13.Na4 e6 14.g4 Nh4 15.f4 h5; 10...e5 11.Nc3 a6 12.0–0 Nf6 13.Na4 Be7 14.Nb6 Rd8 15.Rab1 0–0; 10...Rb8 11.Nc3 a6 12.0–0 Nf6 13.a4 d4 14.Nd1 e6 15.ed4 Nd4; 10...Qg6 11.0–0 Nf6 12.Nc3 0–0–0 13.Nb5 e6 14.f3 a6 15.Nd4 Nd4) 11.0–0 a6 12.Ba3 Qc7 13.Nc3 d4 14.ed4 Nd4 15.Qd1 e6; B) 10.Nc6 bc6 (10...Qc6 11.Bd4 Nf6 12.Nc3 e6 13.0–0 Be7 14.Rab1 0–0 15.f4 b6) 11.Nc3 Nf6 12.0–0 h5 13.Rab1 e6 14.h3 Rd8 15.e4 de4; C) 10.Qb5 Nf6 (10...Nh6 11.Na3 Rb8 12.Qa4 Qb4 13.Qb3 f6 14.Nd3 Qb3 15.ab3 e6; 10...Rb8 11.Nd3 a6 12.Qa4 Qd7 13.Qf4 Nf6 14.Nc3 e6 15.0–0 Qd6; 10...Rd8 11.Nd3 Nf6 12.Nc3 d4 13.Ne2 de3 14.fe3 Qd5 15.Qd5 Rd5) 11.0–0 Qb4 12.Qb4 Nb4 13.Nc3 Rc8 14.Nb5 a6 15.Nd4 Nd7; D) 10.f4 Nf6 (10...a6 11.0–0 Nf6 12.Nd3 d4 13.Na3 Qd5 14.Rfe1 de3 15.de3 0–0–0; 10...Rc8 11.0–0 Nf6 12.Nd3 d4 13.e4 Qe6 14.e5 Qg4 15.Rf3 Nd5; 10...Rd8 11.Nc3 a6 12.0–0 Nf6 13.Nd3 h5 14.Rab1 h4 15.Nd1 h3; 10...Nh6 11.0–0 Nf5 12.Ba3 Qe6 13.Nc3 Ne5 14.fe5 0–0–0 15.Bc5 Qe5) 11.0–0 h5 12.Ba3 Qe6 13.d4 Ng4 14.Nd2 Nce5 15.fe5 Qa6.

9.Qe2 Nf6 A) 10.0–0 Rc8 (10...Nc6 11.Nd3 h5 12.Nc3 a6 13.a4 e6 14.Ba3 Qc7 15.Bf8 Kf8; 10...Qc7 11.Na3 a6 12.Qd3 e6 13.Rab1 Bd6 14.f4 0–0 15.c4 Qc5; 10...a6 11.f4 Nc6 12.Nd3 d4 13.Na3 Qd5 14.Rfe1 de3 15.de3 0–0–0; 10...Nd7 11.f4 a6 12.a4 Rc8 13.Na3 h5 14.Bd4 Nc6 15.Nc6 Qc6; 10...Rd8 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 e6 14.Rab1 Bd6 15.Ba7 0–0; 10...h6 11.f4 Nc6 12.Nc3 a6 13.Nd3 b5 14.Rab1 d4 15.Nd1 e6; 10...g6 11.f4 Nc6 12.Ba3 Qe6 13.Nc3 0–0–0 14.Nc6 Qc6 15.Nb5 Qc4; 10...h5 11.Qb5 Nc6 12.Nc3 Rb8 13.Nd3 d4 14.ed4 a6 15.Qa4 Ng4; 10...g5 11.Qb5 Nc6 12.Nc3 Rd8 13.Nd3 Bg7 14.f4 gf4 15.Rf4 Bh6) 11.Na3 a6 12.f3 b5 13.Nd3 h5 14.Qf2 Nc6 15.e4 Nb4; B) 10.Qb5 Nc6 11.Nc3 Rb8 12.Nd3 a6 13.Qa4 e5 14.0–0 Be7 15.f4 e4; C) 10.Na3 a6 (10...Nc6 11.Nb5 Qb8 12.Nf3 a6 13.Nc3 e6 14.0–0 Be7 15.Na4 b5; 10...Rc8 11.Nb5 Qb8 12.Bd4 a6 13.Nc3 e6 14.0–0 Bd6 15.f4 0–0) 11.0–0 g6 12.c4 Bg7 13.cd5 Qd5 14.Nac4 Nc4 15.Nc4 Qe6; D) 10.f4 Nc6 (10...Qa6 11.Qa6 ba6 12.Bd4 e6 13.Nc3 Bd6 14.Rb1 0–0 15.Kf2 Rfc8; 10...Rd8 11.0–0 Nc6 12.Nc3 a6 13.Na4 b5 14.Nb6 Na5 15.Bd4 Rb8; 10...g6 11.0–0 Nc6 12.Ba3 Qe6 13.Nc3 0–0–0 14.Bc5 Ne5 15.fe5 Ne4; 10...a6 11.Ba3 Qc7 12.Nc3 Nc6 13.Rb1 e6 14.Bf8 Rf8 15.0–0 0–0–0; 10...Qc7 11.Nc3 Nc6 12.0–0 a6 13.Na4 b5 14.Nc3 Ne5 15.fe5 Qe5; 10...Nd7 11.0–0 a6 12.a4 Rc8 13.Na3 Nf6 14.Bd4 Nc6 15.Rfb1 Qc7; 10...Nc4 11.Nc4 dc4 12.Qc4 Rd8 13.Bd4 Qd5 14.Qe2 Qf5 15.Nc3 Qc2; 10...Rc8 11.Qb5 Nc6 12.Ba3 Qc7 13.Nc3 a6 14.Qa4 e6 15.Bf8 Kf8) 11.0–0 h5 12.Nc3 a6 13.Rab1 h4 14.Nc6 Qc6 15.Rf3 h3.

9.Qe2 Nh6 A) 10.0–0 a6 (10...f6 11.Qb5 Nc6 12.Nd3 e6 13.Nc3 Nf5 14.Ba3 Qc7 15.Bf8 Kf8; 10...e6 11.Qh5 Nc6 12.f4 0–0–0 13.Nc3 Ne5 14.fe5 Qb4 15.Rab1 Bc5; 10...Nc6 11.Nd3 Nf5 12.Nc3 a6 13.Rfe1 e6 14.e4 Nfd4 15.Qd1 0–0–0; 10...Rc8 11.Na3 a6 12.Nd3 e6 13.e4 de4 14.Qe4 Qc6 15.Qf4 Nc4; 10...Rd8 11.f4 f6 12.Qb5 Nc6 13.Nd3 a6 14.Qb6 Nf5 15.Ba3 Qb8; 10...0–0–0 11.Na3 f6 12.Nd3 e5 13.Rab1 Qd7 14.Bc3 Nc6 15.Nb4 a6) 11.Bd4 Nc6 12.Nc6 bc6 13.f4 f6 14.d3 c5 15.Bc3 d4; B) 10.Na3 a6 (10...Nc6 11.Nb5 Qb8 12.Nd3 a6 13.Nd4 Qc7 14.0–0 Nd4 15.Bd4 Nf5; 10...f6 11.Qb5 Nc6 12.Qb7 Rb8 13.Qc6 Qc6 14.Nc6 Rb2 15.0–0–0 Ra2; 10...Rc8 11.Qb5 Nc6 12.c4 Rd8 13.c5 Qc7 14.Qa4 a6 15.0–0 f6) 11.0–0 Nc6 12.Nc6 Qc6 13.c4 Rd8 14.Rfc1 Nf5 15.d4 e6; C) 10.Qb5 Nc6 11.Na3 Rb8 12.0–0 a6 13.Qa4 b5 14.Qf4 Rc8 15.Nd3 Qf4; D) 10.Nc3 a6 (10...Nc6 11.Nb5 Qb8 12.Nd3 a6 13.Nd4 Nd4 14.Bd4 Qc7 15.0–0 Nf5) 11.f4 Nc6 12.Nd3 e6 13.0–0 Nf5 14.g4 Nh4 15.f5 ef5; E) 10.f4 f6 (10...0–0–0 11.Ba3 Qf6 12.Nc3 Nc6 13.Nc6 Qc6 14.Nb5 Kb8 15.Bb2 f6; 10...a6 11.Ba3 Qe6 12.Nc3 f6 13.Bb4 fe5 14.Ba5 ef4 15.ef4 Qe2) 11.Qb5 Nc6 12.Qb7 Rb8 13.Qc6 Qc6 14.Nc6 Rb2 15.Nc3 e6.

9.Qf3 Nf6 A) 10.a4 Rc8 (10...Nc6 11.Nc6 Qc6 12.Bf6 Qf6 13.Nc3 e6 14.Qe2 0–0–0 15.0–0 Bb4) 11.Na3 Qb4 12.Bd4 Nc6 13.Nc6 Rc6 14.0–0 Qd2 15.Rfb1 e5; B) 10.0–0 Rc8 (10...e6 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 Be7 14.Rab1 0–0 15.h3 h6; 10...h5 11.Na3 a6 12.Rac1 Nc6 13.Nc6 bc6 14.Rb1 e5 15.c4 e4; 10...a6 11.Bd4 Nc6 12.Qf4 Rb8 13.Nc3 Rc8 14.Rab1 b5 15.Rfe1 e6; 10...Nc6 11.Nc6 Qc6 12.Bd4 Qd6 13.Bf6 Qf6 14.Qd5 Qb2 15.Nc3 Rd8; 10...h6 11.Rd1 e6 12.Bd4 Nc6 13.Nc6 Qc6 14.Nc3 Be7 15.Rab1 0–0) 11.Na3 e6 12.Rab1 Qb4 13.Nd3 Qe4 14.Qd1 Ba3 15.Ba3 Qa4; C) 10.h3 Nc6 (10...g6 11.0–0 Bg7 12.Bd4 Nc6 13.Nc6 bc6 14.Nc3 e5 15.Qe2 ed4; 10...Rc8 11.Na3 Nc6 12.Nc6 bc6 13.Rb1 Ne4 14.Bc1 Nf6 15.Rb7 Rb8; 10...h5 11.0–0 Nc6 12.Nc6 bc6 13.Ba3 Qc7 14.Nc3 Rh6 15.Rab1 e6; 10...e6 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 Be7 14.0–0 0–0 15.Rab1 h6; 10...a6 11.0–0 Rc8 12.Rc1 h6 13.d3 Nc6 14.Nc6 bc6 15.Nd2 e6; 10...Qc5 11.Nc3 Nc4 12.Nc4 Qc4 13.d3 Qb4 14.Rb1 Rc8 15.Ba1 Qa5; 10...h6 11.0–0 Rc8 12.Na3 Qb4 13.Nd3 Qe4 14.Qe2 Qa4 15.Rfc1 e6; 10...Qc7 11.Na3 a6 12.Nd3 Ne4 13.c4 Qd6 14.Rc1 Rc8 15.Ke2 dc4; 10...Rb8 11.Na3 b5 12.Qe2 a6 13.0–0 b4 14.Nb1 Rc8 15.Rc1 g6) 11.Nc6 Qc6 12.Bf6 Qf6 13.Nc3 Qf3 14.gf3 e6 15.Rb1 0–0–0; D) 10.Na3 Qb4 (10...Rc8 11.Rb1 a6 12.0–0 Nc6 13.Nc6 Rc6 14.Qe2 e6 15.Qd3 Qd7; 10...Qa6 11.Qe2 Rc8 12.Nb5 e6 13.0–0 Be7 14.a4 0–0 15.d3 Nc6; 10...a6 11.0–0 h5 12.Rad1 Nc6 13.Nc6 bc6 14.Rb1 e5 15.c4 e4; 10...h6 11.Nb5 Qc5 12.a4 Rc8 13.Nd3 Qb6 14.Bd4 Qd8 15.Bc3 a6; 10...h5 11.Nb5 Qc5 12.Qe2 Nc4 13.Nc4 dc4 14.a4 a6 15.Nd4 Qd5; 10...Qc5 11.Nd3 Qc6 12.0–0 Ne4 13.Qe2 Nc4 14.Nc4 Qc4 15.f3 Nc5; 10...e6 11.Nb5 Qb6 12.a4 a6 13.Bd4 Bc5 14.Qg3 Bd4 15.Nd4 0–0) 11.Rb1 Qa4 12.Qf4 Qf4 13.ef4 e6 14.Nb5 Rc8 15.Bc3 Nc6; E) 10.h4 Rc8 (10...Nc6 11.Nc6 bc6 12.Nc3 g6 13.a4 Rb8 14.Ba3 Qc7 15.0–0 Bg7; 10...h5 11.Na3 a6 12.Qf4 Nc6 13.Nc6 Qf4 14.ef4 bc6 15.Rh3 e6; 10...e6 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 Be7 14.0–0 0–0 15.Rab1 h6; 10...Qc5 11.Nc3 Nc4 12.Nc4 Qc4 13.h5 h6 14.Qg3 Rc8 15.Rh4 Qc7; 10...a6 11.0–0 Rc8 12.Na3 Nc6 13.Nc6 Rc6 14.Qh3 h5 15.Rfe1 e6; 10...Qc7 11.Na3 a6 12.Qf4 e6 13.0–0 Nc6 14.Nc6 Qc6 15.f3 Rg8; 10...Rd8 11.Na3 a6 12.0–0 b5 13.d4 g6 14.Nb1 Rc8 15.c3 Nc6; 10...h6 11.Na3 a6 12.0–0 Nc6 13.Nc6 Qc6 14.Bf6 ef6 15.Nb1 Rd8; 10...Rb8 11.Na3 b5 12.Qe2 a6 13.0–0 b4 14.Nb1 Rc8 15.d3 Nc6) 11.Na3 Qb4 12.Nd3 Qe4 13.Ke2 Qf3 14.gf3 e6 15.Rag1 h5; F) 10.g3 Rc8 (10...Nc6 11.Nc6 Qc6 12.Bf6 Qf6 13.Qf6 ef6 14.Nc3 0–0–0 15.Ke2 Bc5; 10...h5 11.Na3 a6 12.0–0 h4 13.d3 hg3 14.fg3 Nc6 15.Nc6 Qc6; 10...Qc7 11.Na3 a6 12.Rb1 e6 13.Qf4 b5 14.Nd3 Qf4 15.ef4 d4) 11.Na3 e6 12.0–0 Qb4 13.Nd3 Qe4 14.Qd1 Qa4 15.c3 Qd1; G) 10.Ke2 Rc8 (10...h5 11.Nd3 Nc4 12.Bf6 Qf6 13.Qd5 Qa1 14.Qc4 a6 15.Qc7 Qf6; 10...Rg8 11.Na3 Qa6 12.Ke1 Rc8 13.Qe2 Qe2 14.Ke2 e6 15.Rac1 Ba3; 10...e6 11.Bd4 Qa6 12.Ke1 Nc6 13.Nc6 Qc6 14.Nc3 Be7 15.Rb1 0–0; 10...Nc6 11.Nc6 Qc6 12.Bf6 ef6 13.Nc3 Qc4 14.Ke1 0–0–0 15.a4 d4; 10...h6 11.Nd3 Nc4 12.Bf6 Qf6 13.Qd5 Qa1 14.Qc4 a6 15.Qd5 Rd8; 10...a6 11.Bd4 Nc6 12.Nc6 bc6 13.Qg3 Qg3 14.hg3 Nd7 15.f4 Rc8; 10...g6 11.Bd4 Nc6 12.Nc6 bc6 13.Bf6 Qf6 14.Qf6 ef6 15.Nc3 Bb4; 10...Rb8 11.Nd3 Nc4 12.Bf6 Qf6 13.Qd5 Qa1 14.Qc4 Qf6 15.Nc3 Qc6) 11.Na3 Qa6 12.d3 e6 13.Rac1 Bd6 14.Rhd1 0–0 15.Kf1 Qb6; H) 10.Qe2 Nc6 (10...Nd7 11.Nd7 Qd7 12.Na3 e5 13.0–0 Ba3 14.Ba3 Nc4 15.Qd3 Qa4; 10...Rc8 11.Qb5 Nc6 12.Qb7 Rb8 13.Qc6 Qc6 14.Nc6 Rb2 15.Nc3 e6) 11.Nc6 Qc6 12.Nc3 e6 13.0–0 Be7 14.Nb5 0–0 15.Nd4 Qa4.

9.f4 Qa6 A) 10.Qe2 Qe2 (10...Nf6 11.Qa6 ba6 12.Bd4 e6 13.Nc3 Bd6 14.Rb1 0–0 15.Kf2 Rfc8; 10...e6 11.Qa6 ba6 12.Bd4 Ne7 13.Nc3 Nf5 14.Rb1 f6 15.Nd3 Kf7; 10...Nc4 11.Bd4 Ne5 12.fe5 Nh6 13.Nc3 e6 14.Qa6 ba6 15.Rb1 Kd7) 11.Ke2 Nf6 12.Bd4 e6 13.Nc3 a6 14.Rhb1 Bd6 15.Kf3 b5; B) 10.a4 Nc4 (10...Nf6 11.Na3 Rc8 12.Nb5 e6 13.0–0 Be7 14.d3 0–0 15.Rf3 Nc6; 10...Nh6 11.Na3 Rc8 12.Nb5 f6 13.Qh5 g6 14.Qh3 e6 15.Nf3 Bg7) 11.Nc4 Qc4 12.d3 Qc6 13.0–0 Nf6 14.Nc3 e6 15.Nb5 Be7; C) 10.Bd4 Nc6 (10...Nf6 11.Nc3 e6 12.Rb1 Nc6 13.Nb5 Rc8 14.Nc6 bc6 15.Nc3 Bd6; 10...e6 11.Qh5 Nh6 12.Nc3 Nc6 13.Nc6 bc6 14.g4 Rb8 15.Kf2 c5) 11.Nc6 Qc6 12.Nc3 e6 13.f5 Nf6 14.0–0 Be7 15.Qe2 0–0; D) 10.Kf2 Nc6 (10...Nf6 11.Nc3 Nc4 12.Nc4 Qc4 13.Qf3 Rc8 14.Rhd1 e6 15.Kg1 Be7; 10...h5 11.Nc3 Nf6 12.Qf1 Qf1 13.Raf1 e6 14.Rc1 Bc5 15.Kf3 Ke7; 10...e6 11.Bd4 Nf6 12.Nc3 Be7 13.Qe2 Qe2 14.Ke2 Nc4 15.Rab1 b6; 10...Nc4 11.Nc4 Qc4 12.d3 Qc6 13.Nd2 Nh6 14.c4 Rd8 15.Rc1 Nf5; 10...Rd8 11.Bd4 Nf6 12.Nc3 Nc6 13.Rb1 Nd4 14.ed4 e6 15.Qf1 Qf1) 11.Qh5 g6 12.Qf3 Nf6 13.Nc6 bc6 14.Bf6 ef6 15.Nc3 Bb4; E) 10.Nc3 Nf6 (10...Nc4 11.Nd5 0–0–0 12.Nc4 Qc4 13.Nc3 Nf6 14.Qe2 Qe2 15.Ke2 e6; 10...e6 11.Qh5 g6 12.Qh3 Nf6 13.d3 Qb6 14.Rb1 d4 15.ed4 Bb4) 11.a4 Rc8 12.Nb5 e6 13.0–0 Be7 14.d3 0–0 15.Rf3 Nc6; F) 10.Qf3 Nf6 (10...e6 11.Nc3 Nf6 12.a4 Nc4 13.Nb5 Rc8 14.Nc4 Rc4 15.Qe2 Kd7) 11.Bd4 e6 12.Nc3 Bd6 13.Qg3 0–0 14.d3 Bb4 15.a3 Bc3; G) 10.Qh5 g6 11.Qe2 Bg7 12.Nc3 Qe2 13.Ke2 Nf6 14.Rab1 Rc8 15.g4 h6; H) 10.Na3 Nf6 (10...e6 11.Qe2 Qe2 12.Ke2 Ba3 13.Ba3 Nf6 14.Bb4 Nc4 15.Rab1 Rc8; 10...Nc6 11.Qe2 Qe2 12.Ke2 Rc8 13.c4 e6 14.cd5 Ba3 15.Ba3 ed5; 10...Nh6 11.Qe2 Qe2 12.Ke2 f6 13.Nb5 Rc8 14.Nd3 a6 15.Nd4 Nc4; 10...h5 11.Qe2 Nf6 12.Nb5 Rc8 13.0–0 h4 14.Bc3 h3 15.gh3 Rh3) 11.Qe2 Qe2 12.Ke2 Rc8 13.Nb5 Nc6 14.c4 dc4 15.Nc4 Nd5; I) 10.d3 Nc6 (10...Nf6 11.Nd2 Nc6 12.Ndf3 e6 13.0–0 Bc5 14.Bd4 Bd4 15.ed4 0–0; 10...e6 11.c4 Ne7 12.Nd2 Nac6 13.Qe2 Ne5 14.Be5 f6 15.Bd4 Nf5; 10...Nh6 11.Nc3 0–0–0 12.0–0 f6 13.Nf3 Nf5 14.Qe1 e6 15.Nd4 Bb4; 10...Rd8 11.0–0 Nf6 12.Nd2 Nc6 13.Ndf3 h6 14.f5 Rc8 15.Qd2 Qa4; 10...h6 11.c4 dc4 12.dc4 Qd6 13.Qh5 Qe6 14.Nf7 Qf7 15.Qb5 Kd8) 11.Nc3 Nf6 12.Kf2 e6 13.a4 Bc5 14.Nb5 Qb6 15.Re1 h5.

9.f4 Nc4 10.Bd4 (10.Nc4 dc4 11.Be5 Qc6 12.0–0 e6 13.d3 Rd8 14.Qe2 f6 15.Bd4 cd3) 10...Ne5 (10...Qa6 11.0–0 e6 12.Nc3 Nh6 13.Rb1 Nf5 14.Nb5 Bd6 15.Nc4 dc4; 10...Rc8 11.Nc3 Nh6 12.0–0 Nf5 13.Nb5 Qa6 14.Rb1 Nd4 15.ed4 g6; 10...e6 11.Nc3 Ne5 12.fe5 Qc6 13.0–0 Nh6 14.Qf3 Be7 15.Rab1 0–0; 10...h5 11.Nc3 Nf6 12.Rb1 b6 13.Nb5 Qd8 14.Nc4 dc4 15.Qf3 Rc8; 10...Qc7 11.Nc3 Nf6 12.Qe2 Rc8 13.0–0 e6 14.Rab1 b6 15.Nb5 Qb7; 10...h6 11.Nc3 Nf6 12.Rb1 b6 13.Nb5 Qd8 14.Nc4 dc4 15.Qf3 Rc8; 10...Nh6 11.Nc3 Ne5 12.fe5 Qc6 13.0–0 e6 14.Rb1 Nf5 15.Qf3 h5) 11.fe5 Qd7 12.0–0 Nh6 13.Qf3 e6 14.Nc3 Nf5 15.Rab1 h5.

9.f4 Nc6 A) 10.0–0 Nf6 (10...Nh6 11.Qe2 Nf5 12.Ba3 Qe6 13.Nc3 0–0–0 14.Bc5 Ne5 15.fe5 Qe5; 10...Rc8 11.Qg4 Qd8 12.Nc6 Rc6 13.Bg7 Nh6 14.Bh6 Bh6 15.Nc3 d4; 10...a6 11.Ba3 Qc7 12.Nc3 Nf6 13.Rb1 e6 14.Bf8 Rf8 15.Qf3 0–0–0) 11.Qe2 Rd8 12.Nc3 a6 13.Nd3 h5 14.a4 h4 15.Rf3 Qc7; B) 10.Qe2 Rd8 (10...a6 11.0–0 Nf6 12.Nd3 d4 13.Na3 Qd5 14.Rfe1 de3 15.de3 0–0–0; 10...Nf6 11.0–0 h5 12.Ba3 Qe6 13.d4 Ng4 14.Nc3 0–0–0 15.f5 Qf6; 10...Rc8 11.Ba3 Qc7 12.Nc3 Nf6 13.0–0 Ne5 14.fe5 Qe5 15.Qb5 Kd8; 10...Nh6 11.0–0 Nf5 12.g4 Nh4 13.Qb5 f6 14.Qb7 Rb8 15.Qc6 Qc6; 10...Qc7 11.Nd3 Nf6 12.0–0 e6 13.Nc3 a6 14.Rf3 Be7 15.Rg3 0–0) 11.Nc3 a6 12.0–0 Nf6 13.Nd3 h5 14.Rae1 h4 15.h3 d4; C) 10.Nc6 Qc6 11.0–0 Nf6 12.Nc3 e6 13.f5 Bd6 14.a4 Be5 15.Qf3 Rc8; D) 10.a4 d4 (10...a6 11.0–0 Nf6 12.Ba3 Qe6 13.Nc6 Qc6 14.Nc3 g6 15.Qb1 Rd8; 10...Nf6 11.0–0 a6 12.Ba3 Qc7 13.Nc6 Qc6 14.Nc3 g6 15.Qb1 Rd8; 10...Nh6 11.0–0 Rc8 12.Na3 Ne5 13.fe5 Qd7 14.Nb5 Qg4 15.Qb1 Rc4; 10...Rc8 11.Na3 Ne5 12.fe5 Qb4 13.Bd4 Qa4 14.Qb1 e6 15.Qb7 Qc6; 10...Rd8 11.0–0 Nf6 12.Nc3 a6 13.Ba3 Qc7 14.Rb1 e6 15.Bf8 Rf8; 10...Qb4 11.Nd3 Qc4 12.Nc3 Nf6 13.0–0 h5 14.a5 Ne4 15.Ne4 de4; 10...Rb8 11.Nc6 Qc6 12.0–0 Rc8 13.Nc3 Nf6 14.Nb5 Qc2 15.Rc1 Qf5) 11.ed4 Nd4 12.Na3 Nf6 13.Nac4 Qd5 14.0–0 Nf5 15.d4 0–0–0; E) 10.Bd4 Nd4 (10...Nf6 11.0–0 Nd4 12.ed4 Rc8 13.Nc3 Qb6 14.Ne2 Ne4 15.c4 Rc4; 10...Nh6 11.Nc6 Qc6 12.Nc3 Nf5 13.0–0 Nd4 14.ed4 g6 15.Qf3 Bg7; 10...e6 11.Nc3 Nd4 12.ed4 Qa6 13.Qh5 Nh6 14.Kf2 Bd6 15.Rab1 0–0; 10...h5 11.Nc3 Nf6 12.Nb5 Qd8 13.0–0 Ne4 14.Qe2 Qa5 15.Bc3 Nc3; 10...Qe6 11.0–0 Nf6 12.Nc3 Nd4 13.ed4 Qb6 14.Ne2 Qa6 15.Re1 e6) 11.ed4 Nf6 12.Nc3 Qb6 13.Qe2 a6 14.Qd3 e6 15.0–0 Bb4; F) 10.Nd3 d4 11.0–0 de3 12.de3 0–0–0 13.Nc3 Nf6 14.Qf3 Qd7 15.Ne5 Ne5; G) 10.Na3 Qc5 (10...a6 11.0–0 b5 12.Qh5 g6 13.Qf3 Nf6 14.c4 bc4 15.Nac4 dc4; 10...Ne5 11.fe5 Qa6 12.Qe2 Qe2 13.Ke2 Nh6 14.c4 e6 15.cd5 Ba3) 11.Qh5 Nh6 12.0–0 Ne5 13.fe5 e6 14.Qe2 Be7 15.Rac1 Qb4.

9.f4 e6 A) 10.Ba3 Qa6 (10...Qc7 11.Bf8 Kf8 12.Nc3 Nf6 13.0–0 g6 14.Qf3 Kg7 15.Rab1 b6; 10...Qd8 11.0–0 Nf6 12.Bf8 Rf8 13.Qe2 Nd7 14.Nd3 Nc4 15.Nc3 Qc7) 11.Bf8 Kf8 12.Nc3 Nf6 13.Qb1 Nc6 14.Nc6 bc6 15.Qb4 Kg8; B) 10.Bd4 Qa6 (10...Nf6 11.Nc3 Qa6 12.Rb1 Nc6 13.Qe2 Nb4 14.Qa6 ba6 15.Rb2 Rc8; 10...Nc6 11.Nc3 Nd4 12.ed4 Qa6 13.Qe2 Qe2 14.Ke2 f6 15.Nd3 Nh6; 10...Nh6 11.Nc3 Qa6 12.Rb1 Nc6 13.Qe2 Nd4 14.ed4 Nf5 15.Qa6 ba6) 11.Nc3 Nf6 12.Rb1 Nc6 13.Qe2 Nd4 14.ed4 Qe2 15.Ke2 b6; C) 10.Nc3 Nf6 (10...Qa6 11.Qh5 g6 12.Qh3 Nf6 13.a4 Rc8 14.Nb5 Rg8 15.0–0 Be7; 10...a6 11.0–0 Nf6 12.Qf3 Nc6 13.Nc6 Qc6 14.f5 Be7 15.a4 0–0; 10...Qb4 11.Rb1 Nf6 12.0–0 Be7 13.Ba1 Qc5 14.Nb5 Qc8 15.Nd4 0–0) 11.a4 Qb6 12.Rb1 Nc4 13.Nc4 dc4 14.0–0 Qc6 15.Nb5 Be7; D) 10.a4 Nf6 (10...Nc4 11.Nc4 dc4 12.Qe2 Rc8 13.0–0 Qd7 14.Bd4 Nf6 15.Nc3 Bb4; 10...Qb6 11.Bd4 Bc5 12.Bc5 Qc5 13.Nc3 Nf6 14.Rb1 Rb8 15.0–0 Nc4; 10...Rc8 11.Nc3 Nf6 12.0–0 Qa6 13.f5 Be7 14.Nb5 0–0 15.d3 Nc6; 10...Qc7 11.Nc3 a6 12.0–0 Nf6 13.Rf3 Bd6 14.Rg3 0–0 15.Ba3 Ba3) 11.Nc3 Qb6 12.Rb1 Nc4 13.Nc4 dc4 14.0–0 Qc6 15.f5 Be7; E) 10.Qe2 Qa6 (10...Nh6 11.Nc3 Qa6 12.Nb5 Rc8 13.Bc3 f6 14.Nf3 Nc4 15.Nfd4 Bc5; 10...Qc7 11.0–0 Nf6 12.Bd4 Be7 13.Nc3 0–0 14.Nb5 Qc2 15.Rac1 Qa4; 10...Nc6 11.Nc3 a6 12.0–0 Ne5 13.fe5 Qe5 14.Na4 Qc7 15.Qh5 Nh6; 10...Rc8 11.Qb5 Nc6 12.Qb7 Nge7 13.Ba3 Qc7 14.Qc7 Rc7 15.Bd6 Rb7) 11.Qa6 ba6 12.Ke2 f6 13.Nd3 Nh6 14.Nc3 Nc4 15.Rab1 Nf5; F) 10.c4 dc4 (10...Ne7 11.Ba3 Qb6 12.Qa4 Nec6 13.cd5 ed5 14.Bf8 Rf8 15.Nc3 Qb4; 10...Nf6 11.Na3 Rc8 12.Rc1 Be7 13.Qa4 Nc6 14.Nb5 Qb4 15.Qb4 Bb4) 11.Qa4 Nc6 12.Na3 Qb4 13.Qb4 Nb4 14.0–0 Nf6 15.Nb5 Rd8; G) 10.Qh5 Qe7 (10...Qc7 11.Nc3 a6 12.0–0 Nf6 13.Qg5 b5 14.a3 h6 15.Qg3 Nc4; 10...Nh6 11.Nc3 Qa6 12.f5 ef5 13.Qh4 Qd6 14.Nb5 Qb8 15.Qd4 Qd8) 11.Qe2 Nc6 12.0–0 Nf6 13.Nc3 Rc8 14.a4 Qd8 15.a5 Bd6.

9.f4 Nf6 A) 10.Qe2 Rc8 (10...Rd8 11.0–0 Nc6 12.Nc3 a6 13.Nd3 h5 14.Rf3 h4 15.Rh3 e6; 10...Nc6 11.0–0 h5 12.Nc3 a6 13.Nf3 e6 14.a4 Qc7 15.Ng5 Nb4; 10...Qa6 11.Qa6 ba6 12.Bd4 e6 13.Nc3 Bd6 14.Rb1 0–0 15.0–0 Rfc8; 10...Nd7 11.0–0 e6 12.Bd4 Qa6 13.Qh5 g6 14.Qf3 Bc5 15.Nc3 Bd4; 10...a6 11.Ba3 Qc7 12.Nc3 Nc6 13.Nc6 Qc6 14.0–0 0–0–0 15.Rab1 Qc4; 10...Qc7 11.0–0 Nc6 12.Nd3 a6 13.Bf6 gf6 14.Nc3 0–0–0 15.Rab1 e6; 10...g6 11.0–0 Nc6 12.Ba3 Qb8 13.Nc3 Ne5 14.fe5 Qe5 15.Qb5 Kd8; 10...h5 11.Qb5 Nc6 12.Nc3 Rd8 13.Qb7 Rb8 14.Qc6 Qc6 15.Nc6 Rb2) 11.Qb5 Nc6 12.Ba3 Qc7 13.Nc3 a6 14.Qa4 e6 15.Bf8 Kf8; B) 10.Na3 Ne4 (10...Qa6 11.Qe2 Rc8 12.Nb5 Ne4 13.a4 h5 14.0–0 Nc6 15.d3 Nd6; 10...a6 11.0–0 Nc6 12.c4 Rd8 13.Nc6 Qc6 14.Rc1 e6 15.cd5 Qd5; 10...e6 11.c4 Rc8 12.Rc1 Be7 13.Qa4 Nc6 14.Nb5 Qb4 15.Qb4 Bb4; 10...Rc8 11.0–0 Qa6 12.Qf3 Nc6 13.Rfe1 e6 14.Qf1 Qf1 15.Rf1 Ne5; 10...Qc5 11.Nd3 Qc6 12.Qe2 Ne4 13.0–0 Qa6 14.Qh5 e6 15.f5 Nd2; 10...Qb4 11.Rb1 Ne4 12.Bc1 Qa4 13.Nb5 Rc8 14.d3 Nd6 15.Qg4 e6) 11.Rb1 a6 12.0–0 Nc6 13.d3 Nc5 14.Qh5 Ne5 15.fe5 Qg6; C) 10.Bd4 Nc6 (10...Qa6 11.Qe2 Qe2 12.Ke2 e6 13.Nc3 a6 14.Kf3 Bd6 15.Rab1 Rc8; 10...Qc7 11.0–0 Nc6 12.Nc3 Nd4 13.ed4 Qb6 14.Ne2 Rc8 15.Rb1 Qa6; 10...e6 11.Nc3 Qa6 12.Rb1 Rc8 13.Nb5 Bc5 14.d3 Bd4 15.Nd4 Nc6; 10...a6 11.Nc3 Nc6 12.0–0 Nd4 13.ed4 Qb4 14.Ne2 Qa4 15.Qb1 b5) 11.0–0 Nd4 12.ed4 e6 13.Nc3 Qb6 14.Ne2 Bd6 15.Rb1 Qa6; D) 10.Nc3 d4 (10...Nc4 11.Rb1 Rc8 12.Nc4 Rc4 13.Nb5 Qd7 14.0–0 a6 15.Nd4 Ra4; 10...Rc8 11.0–0 Nc4 12.Nc4 Rc4 13.Nb5 Qb6 14.Rb1 Qb5 15.Bf6 Qa4; 10...e6 11.0–0 Qa6 12.Qf3 Bd6 13.Qg3 0–0 14.a4 Rac8 15.d3 Bb4) 11.ed4 Qd4 12.Qf3 Rc8 13.0–0–0 Qb6 14.Qd3 Nc6 15.Rde1 e6; E) 10.a4 Nc4 (10...Nc6 11.0–0 Rc8 12.Nc6 Qc6 13.Nc3 Qc4 14.Nb5 Qc5 15.Bf6 gf6; 10...a6 11.0–0 Nc6 12.Ba3 Qe6 13.Nc6 Qc6 14.Nc3 g6 15.Qb1 Rd8; 10...Rc8 11.0–0 Nc6 12.Nc6 Qc6 13.Nc3 Rg8 14.Nb5 Qc5 15.Rc1 a6; 10...e6 11.Nc3 Qb6 12.Rb1 Nc4 13.Nc4 dc4 14.0–0 Qc6 15.Nb5 Be7; 10...Qc7 11.Na3 a6 12.0–0 e6 13.Qe2 Be7 14.Rac1 0–0 15.c4 Qb6; 10...Qa6 11.Na3 Rc8 12.Nb5 e6 13.0–0 Be7 14.d3 0–0 15.Rf3 Nc6; 10...Nd7 11.Na3 a6 12.0–0 Nc6 13.Qh5 g6 14.Qf3 Nf6 15.c4 Rd8; 10...Rd8 11.Nc3 e6 12.Nb5 Qb6 13.0–0 Nc4 14.Bd4 Bc5 15.Bc5 Qc5) 11.Nc4 dc4 12.Qe2 Qc6 13.0–0 e6 14.f5 0–0–0 15.fe6 fe6; F) 10.0–0 Nc6 (10...e6 11.Nc3 Qa6 12.a4 Be7 13.Nb5 Rc8 14.Rf3 Nc4 15.Nc4 Rc4; 10...Qa6 11.Bd4 Nc6 12.Nc6 Qc6 13.f5 g6 14.Nc3 Bg7 15.Qb1 0–0; 10...h5 11.Nc3 a6 12.a4 Nc4 13.Nc4 dc4 14.Ba3 Qc6 15.a5 Rd8; 10...Nc4 11.Bd4 a6 12.d3 Na5 13.Nd2 Nc6 14.Ndf3 Nd7 15.Nc6 Qc6; 10...h6 11.Nc3 Rc8 12.Rb1 a6 13.Ne2 Nc6 14.Bc3 b5 15.Nd4 Nd4; 10...Rc8 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 e6 14.Rb1 Be7 15.Ba7 0–0; 10...g6 11.Nc3 Bg7 12.a4 0–0 13.Nb5 Qd8 14.f5 Nc4 15.Nc4 dc4; 10...Rd8 11.Bd4 Nc6 12.Nc3 Nd4 13.ed4 Qb4 14.Nf3 Qc4 15.Rb1 b6; 10...Qc7 11.Na3 a6 12.Rc1 b5 13.Ng4 Nc6 14.Nf6 gf6 15.Qh5 Rd8; 10...b5 11.Nc3 a6 12.Ne2 g6 13.a4 b4 14.c3 b3 15.Ba3 Qc7; 10...a6 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 e6 14.f5 Be7 15.Rb1 0–0) 11.Qe2 Rc8 12.Nd3 d4 13.e4 Qe6 14.e5 Qg4 15.Rf3 Nd5.

9.Qh5 g6 10.Qe2 (10.Qf3 Nf6 11.Bd4 Nc6 12.Nc6 bc6 13.Nc3 Bg7 14.Qg3 0–0 15.Rb1 Rfb8) 10...Nf6 11.Na3 a6 12.0–0 Bg7 13.f3 0–0 14.Rfb1 b5 15.Nd3 Nc6.

9.0–0 Nf6

10.Na3 Qa6 (10...a6 11.c4 Nc6 12.d4 e6 13.Qc2 Be7 14.cd5 ed5 15.f3 0–0) 11.f4 e6 12.Rb1 Bd6 13.d3 0–0 14.f5 h5 15.Qf3 Rae8.

10.c4 Nc6 (10...Nc4 11.Qa4 Nd7 12.Nc4 dc4 13.Na3 Rc8 14.Nc4 Qa6 15.Qa6 ba6; 10...Nd7 11.Nd7 Qd7 12.cd5 Qd5 13.Nc3 Qc6 14.d3 Rd8 15.Qe2 h5) 11.Qa4 Rc8 12.Na3 e6 13.cd5 Nd5 14.Nb5 Qb4 15.Qb4 Ndb4.

10.Bd4 Nc6 11.f4 Nd4 12.ed4 e6 13.Qf3 Qa6 14.Nc3 Bd6 15.Rab1 0–0.

10.Qe2 Rc8 (10...Nc6 11.Nd3 g6 12.Nc3 a6 13.Qf3 Rd8 14.Na4 Bg7 15.Nac5 Rb8; 10...a6 11.Bd4 Nc6 12.Nc6 bc6 13.Bf6 gf6 14.Nc3 Bg7 15.Qg4 0–0; 10...Rd8 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 e6 14.Rab1 Bd6 15.Ba7 0–0; 10...Nd7 11.f4 a6 12.Nc3 e6 13.Nd1 Qc7 14.d3 Nf6 15.Nf2 Bc5; 10...h5 11.f4 Nc6 12.Nc3 a6 13.Nf3 e6 14.Rab1 Qc7 15.f5 ef5; 10...g6 11.f4 Nc6 12.Nc3 a6 13.e4 d4 14.Nc4 Qc5 15.Na4 d3; 10...Qc7 11.Nc3 Qe5 12.Qb5 Kd8 13.Qa5 Qc7 14.Qa4 Qc4 15.Qb3 Qb3) 11.Qb5 Nc6 12.Na3 Qb4 13.Nc6 Qb5 14.Nb5 Rc6 15.Rac1 a6.

10.f3 Nc6 (10...Nd7 11.Nd7 Qd7 12.d3 e6 13.Qe1 Nc6 14.Nc3 Bb4 15.a3 Bd6; 10...e6 11.Qe2 Nc6 12.Nd3 Be7 13.Nc3 0–0 14.Nb5 Qd7 15.Bc3 Rac8; 10...a6 11.Qe2 Rc8 12.Na3 h5 13.c4 Nc6 14.Nd3 h4 15.cd5 Qd5; 10...h5 11.Na3 Qa6 12.Rb1 e6 13.Nd3 Ba3 14.Ba3 Nc4 15.Bc5 Rc8; 10...g6 11.Na3 a6 12.c4 Nc6 13.Nc6 bc6 14.Qa4 Qd7 15.Bf6 ef6; 10...Rc8 11.Na3 Qa6 12.Qe1 Nc6 13.Nc6 Qc6 14.Qg3 Qa6 15.Rab1 Kd8; 10...g5 11.Na3 a6 12.c4 Nc6 13.Nc6 bc6 14.Qa4 Qd7 15.Bf6 ef6; 10...b5 11.Bd4 Nc4 12.Nc4 dc4 13.Bf6 gf6 14.Nc3 b4 15.Ne4 Qd5; 10...Rb8 11.Na3 a6 12.Qe2 Nc6 13.Nd3 b5 14.c3 h5 15.Nc2 h4) 11.Nd3 g6 12.Nc3 a6 13.e4 d4 14.Na4 Bg7 15.Nb6 Rd8.

10.Qf3 Rc8 (10...a6 11.Bd4 Nc6 12.Qf4 g6 13.Nc3 Rc8 14.Nc6 Qc6 15.Bf6 ef6; 10...e6 11.Na3 a6 12.Qe2 Nc6 13.f4 Be7 14.c4 0–0 15.Rac1 Qb4; 10...Nc6 11.Nc6 Qc6 12.Nc3 e6 13.Rab1 Be7 14.Nb5 0–0 15.Be5 Nd7; 10...b5 11.Na3 a6 12.Rac1 Rb8 13.Qe2 b4 14.Nb1 Rc8 15.d3 e6; 10...h5 11.Na3 a6 12.Qf4 Nc6 13.Qa4 Rd8 14.f4 Ne4 15.c4 h4; 10...h6 11.Na3 a6 12.c4 Nc6 13.Nc6 bc6 14.cd5 Qd5 15.Qe2 Rd8; 10...Qc7 11.Bd4 Qc2 12.Nc3 Nc6 13.Nd5 Ne5 14.Be5 Rc8 15.Bc3 Rg8) 11.Na3 a6 12.h3 Nc6 13.Nc6 Rc6 14.Rad1 Qb4 15.Rb1 e5.

10.f4 Rc8 (10...Nc6 11.Qe2 Rd8 12.Nc3 a6 13.Nd3 h5 14.a4 h4 15.h3 d4; 10...h5 11.Nc3 Rc8 12.a4 Nc4 13.Nb5 Qb8 14.Nc4 Rc4 15.d3 Rc6; 10...Rd8 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 g6 14.Qb1 Bg7 15.Qb4 a6; 10...Qc7 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 e6 14.Qe2 Be7 15.Rab1 0–0; 10...e6 11.Nc3 Qa6 12.a4 Be7 13.Nb5 Rc8 14.d3 0–0 15.Rf3 Nc6; 10...Qa6 11.Bd4 Nc6 12.Nc6 bc6 13.Nc3 e6 14.Bf6 gf6 15.f5 e5; 10...b5 11.Nc3 a6 12.Qf3 h5 13.Rab1 b4 14.Na4 Rc8 15.Rfc1 Ne4; 10...Nc4 11.Nc4 dc4 12.Be5 Qc6 13.Nc3 e6 14.Qe2 Be7 15.Rf3 0–0; 10...g6 11.c4 dc4 12.Qa4 Nc6 13.Qc4 Qe6 14.Qe6 fe6 15.Nc6 bc6) 11.Bd4 Nc6 12.Nc6 Qc6 13.Nc3 e6 14.Rb1 Be7 15.Ba7 0–0.

5.Nf3 Nf6

6.a4 Qb6 7.Be2 (7.Bd3 Nc4 8.Bc4 dc4 9.Na3 cb5 10.ab5 Ne4) 7...Nc4 8.Bc4 dc4 9.Na3 cb5 10.ab5 Ne4.

6.a4 Bd7 A) 7.Ne5 Bf5 (7...e6 8.Be2 Bd6 9.0–0 0–0 10.f4 Qc7; 7...Qc7 8.Nd7 Nd7 9.Be2 e5 10.0–0 Bd6) 8.g4 Bc8 9.Qf3 g5 10.bc6 bc6; B) 7.Be5 Bg4 (7...e6 8.Nc3 Ng4 9.Bg3 Bb4 10.Be2 Nc4; 7...Ng4 8.Bf4 e6 9.Be2 Bb4 10.c3 Be7; 7...cb5 8.ab5 Nc4 9.Bc4 dc4 10.Nc3 a6) 8.h3 Bh5 9.d4 Nd7 10.Bf4 e6; C) 7.bc6 Nc6 (7...Bc6 8.Bd4 e6 9.Be2 Nd7 10.0–0 Qc7) 8.Bf6 ef6 9.Nc3 Qa5 10.Qb1 Bb4; D) 7.Bd4 e6 (7...Ne4 8.d3 Nf6 9.Nc3 Bg4 10.h3 Bf3; 7...Bg4 8.h3 Bh5 9.g4 Bg6 10.Ne5 Nd7; 7...Bf5 8.Be2 e6 9.Nh4 Bg6 10.0–0 c5) 8.Be2 Bd6 9.0–0 0–0 10.Be5 Qe7.

6.a4 e6 7.Bd3 (7.Be2 Bd6 (7...c5 8.0–0 Bd6 9.Be5 0–0 10.d4 Qc7; 7...a6 8.Be5 Bd6 9.0–0 0–0 10.d4 Ne4) 8.Be5 0–0 9.0–0 a6 10.d4 Ne4; 7.Ne5 Bd6 (7...c5 8.Be2 Bd6 9.0–0 0–0 10.f4 Nd7; 7...Nd7 8.Qh5 Ne5 9.Be5 Bd7 10.Nc3 cb5; 7...Qc7 8.f4 Bd6 9.Be2 0–0 10.0–0 Nd7) 8.Be2 Nd7 9.d4 0–0 10.Bd3 Qc7; 7.Be5 Nd7 (7...Ng4 8.Bc3 Nf6 9.Be2 Bd6 10.0–0 0–0; 7...c5 8.Be2 Nd7 9.Bf4 Be7 10.0–0 0–0; 7...Bd7 8.Nc3 Ng4 9.Bf4 f6 10.bc6 Nc6) 8.Bf4 Bb4 9.c3 Be7 10.Be2 0–0) 7...Bb4 (7...Bd6 8.0–0 c5 9.Ne5 0–0 10.f4 c4; 7...c5 8.0–0 Bd6 9.Be5 0–0 10.Nc3 Be5; 7...Be7 8.0–0 0–0 9.Ne5 Ne4 10.Qh5 f6; 7...Bd7 8.Ne5 Bd6 9.0–0 c5 10.f4 c4) 8.Ne5 (8.0–0 0–0 9.Ne5 Bd6 10.f4 Ne4) 8...0–0 9.Qf3 (9.0–0 Qd6= (9...Bd6 10.f4 Ne4) 10.bc6 bc6) 9...a6 (9...Bd6 10.Qg3= Ne4) 10.0–0 (10.Ng4 Ne4+=) 10...ab5 (10...Bd6 11.Qg3=) 11.ab5 c5?? (better is 11...Bd6=) 12.c3+– Nc4 13.cb4 (13.Ra8?! Ne5 14.Qe2 Nd3 15.Qd3 c4+–) 13...Ra1 (13...Ne5 14.Be5 Ra1 15.Ba1+–) 14.Ba1 Ne5 15.Be5 c4 16.Bc2 Qe7 (16...Nd7 17.Bd6 Re8 18.d4+–) 17.Qh3 (17.d3 Nd7 18.Bc3 cd3 19.Bd3 f6+–) 17...g6 (17...h6 18.Qh4+–) 18.Qh4 Bd7 (18...Kg7+–) 19.Bf6 Qb4 20.Qh6 1–0. marre – oppo, internet, 2010.

6.a4 Bf5 7.Be2 e6 (7...Bg4 8.0–0 e6 9.Ne5 Be2 10.Qe2 Bd6) 8.0–0 Bg4 9.Ne5 Be2 10.Qe2 Bd6.

6.a4 Bg4 7.h3 (7.Bd3 e6 8.0–0 Bd6 9.h3 Bh5 10.Be2 0–0; 7.Be2 e6 8.0–0 Bd6 9.Ne5 Be2 10.Qe2 0–0; 7.bc6 Nc6 8.h3 Bf5 9.Be2 Rc8 10.Bb5 a6) 7...Bh5 8.Nc3 e6 9.g4 Bg6 10.Ne5 Bd6.

6.Bd3 Bg4 A) 7.0–0 Qd6 (7...Ne4 8.h3 Bh5 9.Bd4 Qd6 10.g4 Bg6; 7...e6 8.a3 Bd6 9.h3 Bh5 10.Nc3 e5) 8.h3 Bh5 9.a4 Ne4 10.g4 Bg6; B) 7.h3 Bh5 (7...Bd7 8.bc6 Nc6 9.Bf6 ef6 10.0–0 Be6) 8.Bf6 ef6 9.bc6 bc6 10.0–0 Bd6.

6.Bd4 Nd7 A) 7.Bd3 Qc7 8.bc6 bc6 9.Bf5 e6 10.Bh3 c5; B) 7.Bc3 Qc7 (7...Qb6 8.a4 Qc7 9.d4 cb5 10.ab5 Nc4) 8.d4 cb5 9.Bb5 Nc4 10.0–0 a6; C) 7.Nc3 f6 8.bc6 bc6 9.Ne2 e5 10.Bc3 Rb8.

6.Bd4 Ne4 7.Ne5 c5 8.Bb2 Bf5 9.g4 Be6 10.f3 Nd6.

6.Bd4 e6 A) 7.Bd3 Bd6 (7...Bd7 8.Nc3 cb5 9.Bb5 Nc6 10.Bc6 Bc6; 7...c5 8.Be5 Ne4 9.0–0 f6 10.Bb2 Bd6; 7...cb5 8.Bb5 Nc6 9.Ne5 Bd7 10.Nd7 Nd7) 8.Nc3 c5 9.Be5 0–0 10.0–0 c4; B) 7.Nc3 Be7 (7...Bd6 8.Be2 Nd7 9.bc6 bc6 10.Na4 e5) 8.Be2 0–0 9.0–0 cb5 10.Nb5 a6; C) 7.Ne5 c5 (7...Bd6 8.Ng4 Be7 9.Nf6 Bf6 10.Bf6 Qf6; 7...Bd7 8.Bc3 Qb6 9.Be2 Bd6 10.a4 0–0) 8.Bb2 c4 9.Be2 Bd6 10.0–0 0–0; D) 7.Be2 Bd6 (7...a6 8.ba6 b6 9.0–0 Ba6 10.Ba6 Ra6; 7...cb5 8.Bb5 Nc6 9.Ne5 Bd7 10.Nd7 Nd7; 7...Bd7 8.a4 Bd6 9.0–0 0–0 10.Be5 Qe7) 8.Nc3 Nd7 9.bc6 bc6 10.Na4 e5.

6.Be2 Qb6 A) 7.Bf6 ef6 (7...gf6 8.Nc3 Rg8 9.bc6 Nc6 10.Rb1 Qd8) 8.bc6 bc6 9.0–0 Bd6 10.d4 0–0; B) 7.0–0 Bg4 (7...Nc4 8.Bf6 gf6 9.Nc3 Rg8 10.e4 Bh6; 7...cb5 8.Bd4 Qd6 9.Bb5 Bd7 10.Nc3 Nc6) 8.Bf6 gf6 9.Nc3 e6 10.Rb1 c5.

6.Be2 Bd7 A) 7.bc6 Nc6 8.0–0 e6 9.Nc3 e5 10.d4 e4; B) 7.Bf6 ef6 (7...gf6 8.bc6 Nc6 9.Nc3 Rg8 10.Rg1 e6) 8.bc6 bc6 9.0–0 Bd6 10.d4 Rb8; C) 7.0–0 e6 8.Nc3 Bd6 9.bc6 bc6 10.Rb1 0–0.

6.Be2 e6 A) 7.a4 Bd6 (7...c5 8.0–0 Bd6 9.Be5 0–0 10.d4 Qc7; 7...Bd7 8.Ne5 Bd6 9.0–0 0–0 10.f4 Qc7) 8.Be5 0–0 9.0–0 a6 10.d4 Ne4; B) 7.Ne5 Bd6 (7...Bd7 8.Nc3 cb5 9.Nb5 Be7 10.0–0 Nc6; 7...a6 8.a4 Bd6 9.0–0 0–0 10.f4 Qc7; 7...Qb6 8.Nc3 Nd7 9.Nf3 Nc4 10.Bc4 dc4) 8.0–0 0–0 9.a4 Nd7 10.f4 f6; C) 7.Bd4 cb5 (7...Bd6 8.Nc3 Nd7 9.bc6 bc6 10.Na4 e5; 7...a6 8.ba6 b6 9.0–0 Ba6 10.Ba6 Ra6) 8.Bb5 Nc6 9.Nc3 Bd7 10.Bc6 Bc6; D) 7.0–0 Bd7 (7...Bd6 8.Be5 cb5 9.Bb5 Bd7 10.Be2 Qc7; 7...cb5 8.Bb5 Bd7 9.Bf6 Qf6 10.Bd7 Kd7; 7...a6 8.a4 Bd6 9.Ne5 0–0 10.f4 Qc7) 8.bc6 Nc6 9.Ne5 Qb6 10.Bc3 Ne5.

6.Be2 Bg4= 7.Bf6 ef6 (7...gf6 8.Nc3 e5 9.bc6 bc6 10.Rb1 Rg8) 8.Nd4 Bd7 9.Nc3 Bd6 10.0–0 0–0.

6.Ne5 a6 A) 7.a4 Bf5 (7...Nd7 8.Bd3 Ne5 9.Be5 cb5 10.ab5 Nc4; 7...Qc7 8.Be2 e6 9.0–0 Bd6 10.f4 0–0) 8.g4 Bg6 9.Nc3 d4 10.Ng6 hg6; B) 7.ba6 b6 8.Bc3 Nd7 9.Nf3 e6 10.a7 Ra7.

6.Ne5 Qb6 A) 7.Be2 Bf5 (7...cb5 8.Bd4 Qd6 9.Bb5 Nc6 10.c4 Nd7; 7...e6 8.Nc3 Nd7 9.Nf3 Nc4 10.Bc4 dc4; 7...Nd7 8.0–0 f6 9.Nd7 Bd7 10.Nc3 Nc4) 8.g4 Be6 9.Na3 Nd7 10.Rb1 c5; B) 7.Bd3 cb5 (7...e6 8.a4 c5 9.0–0 Be7 10.Qf3 0–0) 8.Bd4 Qc7 9.Bb5 Nc6 10.Nc3 a6; C) 7.Na3 a6 (7...Bf5 8.g4 Bg6 9.f3 e6 10.Rb1 c5) 8.Bd4 c5 9.Bb2 c4 10.Rb1 e6; D) 7.Nc3 Nd7 (7...e6 8.Be2 Nd7 9.Nf3 Nc4 10.Bc4 dc4; 7...Qc7 8.f4 a6 9.ba6 b5 10.a4 b4; 7...Bf5 8.g4 Bc8 9.f4 Nd7 10.Na4 Qd8) 8.Nd7 Bd7 9.bc6 Bc6 10.Rb1 Nc4.

6.Ne5 Nd7 A) 7.Qh5 Ne5 (7...g6 8.Qh4 Ne5 9.Be5 f6 10.Bc3 cb5) 8.Be5 Bd7 9.Bd3 Nc4 10.bc6 Bc6; B) 7.f4 Qb6 (7...Ne5 8.Be5 e6 9.Qh5 cb5 10.Bb5 Bd7; 7...e6 8.Be2 Ne5 9.Be5 Bd7 10.a4 Nc4; 7...a6 8.bc6 Nc6 9.Nf3 e6 10.Nc3 b5) 8.Nc3 Ne5 9.Na4 Qd8 10.Be5 Bf5; C) 7.Nd7 Bd7 (7...Qd7 8.Qf3 a6 9.ba6 ba6 10.Bd3 Nb7) 8.bc6 Bc6 9.Bd4 Nc4 10.f4 e5; D) 7.Bd3 Ne5 (7...Nc5 8.Qf3 Nd3 9.cd3 Be6 10.bc6 f6) 8.Be5 Bd7 9.Qh5 Nc4 10.bc6 Bc6.

6.Ne5 Bf5 A) 7.Bc3 Rc8 (7...Nd7 8.Qf3 Ne5 9.Qf5 Nec4 10.bc6 e6; 7...c5 8.g4 Bg6 9.Bg2 e6 10.d3 d4; 7...Qc7 8.g4 Bg6 9.f3 e6 10.Ng6 hg6) 8.g4 Bg6 9.h4 h6 10.Ng6 fg6; B) 7.Bd4 e6 8.bc6 Nc6 9.Bb5 Qc7 10.g4 Bd6; C) 7.Be2 e6 (7...Qc7 8.f4 cb5 9.Bb5 Nc6 10.0–0 e6; 7...Nd7 8.0–0 e6 9.a3 Qc7 10.Nd7 Qd7) 8.g4 Bg6 9.h4 Qc7 10.h5 Bd6; D) 7.g4 Bd7 8.g5 Ne4 9.Qh5 Be6 10.Rg1 Nd6.

5.Nf3 Bg4

6.h3 Bd7 7.Nc3 A) 7...Nc4 8.Bc4 (8.bc6 Bc6 9.Bc4 dc4 10.Qe2 Rc8 11.e4=) 8...dc4 9.a4 cb5 10.ab5 Nf6 11.Qe2+=; B) 7...f6 8.bc6 (8.Ba3 Nc4 9.bc6 Bc6 10.Bc4 dc4 11.Rb1=) 8...bc6 9.Ba3 e5 10.Bf8 Kf8 11.d4+=; C) 7...e6 8.Ne5 (8.bc6 Nc6 9.Rb1 Nf6 10.Nb5 a6 11.Nbd4=; 8.Rb1 Nf6 9.a4 Bd6 10.bc6 Nc6 11.Nb5=; 8.e4 Nf6 9.ed5 cd5 10.Bd3 Bd6 11.Qe2=) 8...Nf6 9.Be2 Bd6 10.f4 0–0 11.0–0=.

6.h3 Bd7 7.bc6 A) 7...Bc6 8.Ne5 (8.Be2 Nc4 9.Bd4 f6 10.d3 Nd6 11.0–0=; 8.Nc3 e6 9.Rb1 Nc4 10.Bc4 dc4 11.0–0=; 8.Na3 Nf6 9.Rb1 Nd7 10.Nb5 Nc4 11.Bd4=) 8...Nf6 9.Nc6 Nc6 10.Bf6 ef6 11.Bd3=; B) 7...Nc6 8.c4 (8.Be2 e6 9.0–0 Nf6 10.Ne5 Rc8 11.Nc6=) 8...dc4 9.Bc4 e6 10.0–0 Nf6 11.Nc3=.

6.h3 Bd7 7.Ne5 =.

6.h3 Bf3 7.Qf3 Qb6 8.Bd4 (8.a4 e6 9.Bd3 Ne7 10.0–0 Rd8 11.Rd1+=) 8...c5 9.Be5 f6 10.Bc3 Rd8 11.e4 +=.

6.h3 Bf3 7.Qf3 Nc4 8.Bc4 dc4 9.bc6 bc6 10.Qc6 Qd7 11.Qa8 Qd8 12.Qa7 e6 13.Qa4 Qd7 14.Qd7 Kd7 15.Na3 Nf6 16.Nc4 Ne4 17.0–0 Bc5 18.Bg7 Rb8 19.Ne5 Ke8 20.d3 Nd2 21.Rfd1 Bb4 22.Nc6 Rb6 1–0. Bonetti,Shane – taticsmaster, ICC, 2002.

6.h3 Bf3 7.Qf3 Qc7 8.Bd3 (8.Be2 e5 9.0–0 Ne7 10.e4 Nc4 11.Bc4+=; 8.Qf4 Qf4 9.ef4 cb5 10.Bb5 Nc6 11.Be5=; 8.e4 e6 9.Be2 Nc4 10.Bc4 dc4 11.a4+=; 8.Nc3 Nf6 9.Be2 e5 10.Qg3 Qd6 11.0–0=; 8.bc6 bc6 9.Nc3 Rb8 10.Rb1 e5 11.Qg3=) 8...e6 9.0–0 Ne7 10.Nc3 Nc4 11.Bc4 +=.

6.h3 Bf3 7.Qf3 Rc8 8.Bd4 (8.Be2 e6 9.0–0 Nf6 10.Bd4 c5 11.Bb2=) 8...c5 9.Bc3 e6 10.Qg4 c4 11.Bg7 +=.

6.h3 Bf3 7.Qf3 e6 8.Bd3 (8.Be2 Nf6 9.Bf6 Qf6 10.Qf6 gf6 11.d4=; 8.a4 Nf6 9.Be2 Rc8 10.0–0 Bd6 11.Nc3=; 8.Nc3 Nf6 9.Be2 Rc8 10.0–0 Bd6 11.a4=) 8...Nf6 9.0–0 c5 10.Qg3 Nh5 11.Qg4 =.

6.h3 Bf3 7.Qf3 Nf6 8.Bd3 cb5 (better is 8...e6!?=) 9.Bb5+/– Nc6 10.Bf6 ef6 11.Nc3 d4?? (better is 11...a6 12.Ba4 b5+/–) 12.Bc6+– bc6 13.Qc6 Ke7 (13...Qd7 14.Qa8 Qd8 15.Qc6 Qd7 16.Qe4 Be7 17.Rb1+–) 14.Nd5 Qd5 15.Qd5 (15.Qd5 Rb8 16.0–0+–) 1–0. Rosner,Dirk – Mosley,Gene, DESC, 1999.

6.h3 Bf3 7.Qf3 Nf6 8.Be2 e6 9.Bf6 Qf6 10.Qf6 gf6 11.g3 =.

6.h3 Bf3 7.Qf3 Nf6 8.Bf6 ef6 9.Be2 Bd6 10.d4 0–0 11.0–0 +=.

6.h3 Bf5 7.Nc3 A) 7...Qd6 8.d3 (8.g4 Bg6 9.Nh4 e5 10.Ng6 Qg6 11.Rb1=; 8.Nd4 Bg6 9.bc6 bc6 10.Nf3 e5 11.Rb1=; 8.bc6 bc6 9.Ne2 Nc4 10.Bc3 Na3 11.Rc1+=) 8...e5 9.Ne2 e4 10.Nfd4 Bd7 11.Bc3+=; B) 7...e6 8.Be2 (8.Nd4 Bg6 9.Be2 Nf6 10.0–0 c5 11.Nf3=; 8.Rb1 c5 9.d3 Nf6 10.Be2 Bd6 11.g4=; 8.a3 c5 9.d3 Nf6 10.Nh4 Bg6 11.Ng6=; 8.Rc1 Ne7 9.Nh4 e5 10.Nf5 Nf5 11.e4=; 8.g4 Be4 9.bc6 bc6 10.Ne4 de4 11.Nd4=) 8...Ne7 9.0–0 Nc4 10.Bc4 dc4 11.e4=; C) 7...Nh6 8.Ba3 (8.g4 Bd7 9.Ne5 e6 10.Rb1 Bc8 11.bc6=) 8...e6 9.Bf8 Rf8 10.bc6 Nc6 11.Rb1+=; D) 7...c5 8.Na4 (8.d3 e6 9.Be2 Nf6 10.0–0 Bd6 11.Nh4=; 8.Be2 Nf6 9.g4 Bg6 10.g5 Ne4 11.d3+=; 8.g4 Bg6 9.d3 e6 10.Bg2 f6 11.h4=) 8...c4 9.d3 Rc8 10.Bc3 cd3 11.cd3+=; E) 7...Nf6 8.a3 (8.Rb1 c5 9.g4 Bg6 10.g5 Ne4 11.d3=; 8.Be2 Qd6 9.bc6 bc6 10.Rb1 e5 11.d3=; 8.Rc1 Qd6 9.bc6 bc6 10.Nb1 Be4 11.Ba6=; 8.g4 Bg6 9.Ne5 e6 10.Rb1 Bd6 11.Ng6=) 8...Rc8 9.Rb1 e6 10.Be2 Nc4 11.Bc4=.

6.h3 Bf5 7.Be2 A) 7...Qb6 8.Nc3 (8.Na3 e6 9.Rb1 c5 10.Nh4 Ne7 11.d3+=) 8...Nc4 9.Bc4 dc4 10.e4 Bd7 11.Ne5+=; B) 7...e6 8.0–0 Nf6 9.Nh4 Bg6 10.Nc3 Qb6 11.Ng6=; C) 7...Nh6 8.0–0 (8.Nc3 e6 9.0–0 Qd6 10.d3 cb5 11.Nb5+=; 8.Nd4 Qc7 9.f4 e6 10.0–0 cb5 11.Nb5=) 8...e6 9.Nc3 Qc7 10.Rb1 Be7 11.bc6+/–; D) 7...Bd7 8.Nc3 (8.a4 f6 9.0–0 Nc4 10.Bc4 dc4 11.Nc3=; 8.bc6 Nc6 9.Nc3 Nf6 10.Nb5 e6 11.0–0=; 8.Na3 cb5 9.Nb5 Nc4 10.Bc4 dc4 11.a4=) 8...Nc4 9.Bc4 dc4 10.a4 cb5 11.ab5+=; E) 7...cb5 8.Bb5 Bd7 9.Qe2 Rc8 10.Ne5 Nf6 11.Nc3=; F) 7...Nf6 8.Nc3 (8.0–0 Qb6 9.Na3 Rd8 10.Re1 e6 11.Rb1=) 8...Qd6 9.bc6 bc6 10.Nb1 e6 11.Nh4=; G) 7...Qc8 8.Bc3 (8.Nc3 Nf6 9.Rb1 e6 10.g4 Be4 11.bc6=; 8.Nd4 Bd7 9.bc6 Nc6 10.0–0 Nf6 11.Nc6=; 8.0–0 Nc4 9.Bc4 dc4 10.bc6 Qc6 11.Ne5+=; 8.Bd4 cb5 9.Bb5 Nc6 10.Nc3 a6 11.Bc6+=; 8.a4 Nc4 9.Bc4 dc4 10.d3 cb5 11.ab5+=) 8...Nc4 9.bc6 Qc6 10.Nd4 Qg6 11.Nf5+=; H) 7...Rc8 8.Nc3 (8.0–0 Nf6 9.a4 e6 10.Nh4 Bg6 11.f4=; 8.Nd4 Bg6 9.bc6 Nc6 10.Nc6 bc6 11.0–0=; 8.Na3 Be4 9.0–0 e6 10.d3 Bf3 11.Bf3=; 8.a4 e6 9.0–0 Nf6 10.Nh4 Bg6 11.f4=) 8...Nc4 9.Bc4 dc4 10.bc6 Rc6 11.Nd4+=; I) 7...Be4 8.Ng5 (8.bc6 Nc6 9.0–0 Qb6 10.Qc1 Nf6 11.Bf6=) 8...Bf5 9.0–0 e5 10.Nf3 f6 11.Nc3=.

6.h3 Bh5 7.Nc3 A) 7...e6 8.g4 (8.bc6 Nc6 9.Bb5 a6 10.Bd3 Bf3 11.Qf3=) 8...Bg6 9.h4 Nf6 10.h5 Be4 11.h6=; B) 7...Qd6 8.bc6 (8.g4 Bg6 9.bc6 bc6 10.Rb1 e5 11.h4=) 8...bc6 9.d4 Nf6 10.Rb1 Rb8 11.g4=; C) 7...Bf3 8.Qf3 e5 9.Be2 Nf6 10.Qg3 e4 11.0–0=; D) 7...Nf6 8.g4 (8.bc6 Nc6 9.g4 Bg6 10.Bb5 a6 11.Bc6=) 8...Bg6 9.Ne5 e6 10.Rb1 Bd6 11.Ng6=.

6.h3 Bh5 7.Bd3 A) 7...Qb6 8.Nc3 (8.a4 Nf6 9.Bf6 ef6 10.g4 Bg6 11.bc6=; 8.Na3 a6 9.g4 Bg6 10.Bg6 hg6 11.Bd4+=) 8...Nc4 9.Bc4 dc4 10.a4 Nf6 11.g4+=; B) 7...e6 8.a3 (8.Nc3 Nf6 9.Rb1 Rc8 10.Ba1 c5 11.0–0+=; 8.Qe2 Nf6 9.Nc3 Bd6 10.Rb1 c5 11.g4=; 8.bc6 Nc6 9.Nc3 Nf6 10.0–0 Bd6 11.Nb5+=; 8.0–0 Nf6 9.Nc3 Bd6 10.bc6 Nc6 11.Be2+=; 8.a4 Nf6 9.0–0 Bd6 10.Na3 0–0 11.Be2+=; 8.Bd4 f6 9.Bc3 e5 10.Be2 cb5 11.Nh4=) 8...Nf6 9.Nc3 Bd6 10.g4 Bg6 11.g5=; C) 7...f6 8.bc6 (8.g4 Bf7 9.Ba3 e5 10.Bf8 Kf8 11.Be2=; 8.Ba3 e5 9.Bf8 Kf8 10.bc6 e4 11.cb7+=) 8...Nc6 9.Be2 e6 10.Nc3 Bd6 11.Nb5=; D) 7...Qd6 8.Na3 (8.g4 Bg6 9.Bg6 hg6 10.Bc3 Qc7 11.Qe2=; 8.Bd4 f6 9.Bc3 Nc4 10.a4 Ne5 11.Be5=; 8.Qe2 e5 9.bc6 Nc6 10.g4 Bg6 11.Bb5=) 8...e5 9.g4 e4 10.gh5 ed3 11.cd3=; E) 7...Nf6 8.Bf6 (8.0–0 Ne4 9.Bd4 f6 10.Bc3 e5 11.bc6+=; 8.Bd4 e6 9.Nc3 c5 10.Be5 c4 11.Be2+=) 8...ef6 9.Nc3 Bd6 10.g4 Bg6 11.Bg6=.

6.h3 Bh5 7.Bd4 e6 8.g4 (8.Nc3 f6 9.bc6 Nc6 10.Ne2 Bf3 11.gf3+=; 8.Bd3 f6 9.Bc3 e5 10.Be2 Bd6 11.bc6+=) 8...Bg6 9.Ne5 c5 10.Bb2 Nf6 11.d3 =.

6.h3 Bh5 7.g4 Bg6 8.Ne5 (8.Nc3 e6 9.h4 Nf6 10.h5 Be4 11.h6=; 8.Bd4 f6 9.Bc5 Nh6 10.d4 Qd7 11.a4=) 8...f6 (8...e6 9.a3 Ne7 10.h4 f6 11.Ng6=) 9.Ng6 hg6 10.bc6 (10.Bd3 g5 11.Bg6+=) 10...Nc6 11.Bg2 (11.Bd3+=) 11...e5 12.f4 ef4 13.ef4 Bd6 14.Nc3 Bf4 15.Nd5 (worse is 15.Bd5 Bg3 16.Kf1 Nge7 17.Bc6 bc6+=) 15...Bg3 16.Kf1 Nge7 17.Qe2 0–0 18.Ne7 Ne7 19.Ba3 Re8 20.Bb7 Nd5?? (better is 20...Rb8 21.Be4 Be5+=) 21.Qf3+– (21.Qf3 Nf4 22.Qg3+–; 21.Ba8? Re2 22.Ke2 Qa8–+) 1–0. Bonetti,Shane – wacky, ICC, 2002.

4.e3 Qd6

5.Nf3 Nc4 6.Bc3 =.

5.Nf3 f6 6.d4 Bg4 (6...Nc4 7.Bc4 dc4 8.Nc3+=) 7.Ba3 Qd7 (7...Qe6 8.Nbd2+=) 8.Nbd2 c6 9.Bb4 b6 (9...Qc7!?+=) 10.Ba5+/– ba5 11.Rb1 Rb8 (11...Nh6!?+/–) 12.bc6 Qc7 13.Rb8 Qb8 14.h3 Bf3 15.Qf3 Qb6? (better is 15...e6 16.e4 Ne7 17.ed5 Nd5+–) 16.Qh5 g6 17.Qd5 a4 (17...Qc7+–) 18.Bc4 Nh6 19.Qd7# 1–0. MrkT – jtincorp69, internet, 2005.

5.h3 Nc4 6.Bc4 dc4 7.Qh5 (7.Nf3 Qb4 8.Be5 Qb5 9.Bc7=; 7.Nc3 e5 8.Nf3 Nf6 9.0–0=; 7.Na3= e5 8.Nf3 e4 9.Nd4+=) 7...Nf6 8.Bf6 Qf6 9.Nc3 =.

5.h3 e5 6.Ba3 Qb6 7.Bf8 Kf8 8.Qh5 Qd6 9.Nf3 =.

5.h3 e5 6.Ba3 c5 =.

5.h3 e5 6.Ba3 Qe6 7.Bf8 Kf8 8.d4 a6 9.ba6 +=.

5.h3 e5 6.Ba3 Qf6 7.Bf8 Kf8 8.Qf3 e4 9.Qf6 =.

5.h3 e5 6.d3 d4 7.Qe2 Be6 8.Nf3 c5 9.ed4 +=.

5.h3 e5 6.Nf3 e4 7.Be5 (7.Nd4 Nf6=) 7...Qb6 (7...Qe7 8.Bc3 ef3 9.Ba5 fg2 10.Bg2=+) 8.Bd4 (8.Nc3 Ne7 9.Na4 Qe6=) 8...Qh6 (better is 8...Qe6 9.Ne5 Bd6=) 9.Be5? (better is 9.Ne5!?=) 9...ef3–/+ 10.Bf4? (better is 10.Bc7 Nc4 11.Qf3–/+) 10...fg2 11.Bg2 Qe6 12.0–0 Bd6 13.Re1 Nf6 14.Nc3 0–0 15.e4 Bf4 16.ed5 Qd6 17.Ne4 Ne4 18.Be4 Bh3 (19.Qh5 Qh6 20.Qh6 Bh6–+; 18...Qh6!? 19.Bg2–+) 0–1. gtate (1960) – gdraper (1955), net–chess.com, 2006.

5.h3 e5 6.Qh5 e4 7.Qe5 (7.Be5 Qe7 8.Nc3 c6 9.Bd4=) 7...Qe5 8.Be5 c6 9.Bc3 =.

5.h3 Bf5 6.Nf3 (6.Bc3 A) 6...Qb6 7.Ne2 (7.Bd4 c5 8.bc6 Qc6 9.Nc3+=; 7.Nf3 Nc4 8.a4 e6 9.Bc4+=) 7...Nf6 8.d3 a6 9.a4+/–; B) 6...Nc4 7.Nf3 (7.Bc4 dc4 8.Nf3 Be4 9.0–0=; 7.d3 Na3 8.Na3 Qa3 9.Ne2=) 7...0–0–0 8.Bd4 Kb8 9.Bc4=) 6...Qc5 (6...Nf6 7.d3 (7.Bc3 Nc4 8.d3 Nb6 9.Be2=; 7.Be2 Nc4 8.Bc4 dc4 9.Be5=; 7.Be5 Qd8 8.Bd3 Bd3 9.cd3=) 7...Qb6 8.Bc3 a6 9.a4+/–; 6...0–0–0 7.d3 b6 8.Bc3 Nh6 9.Ba5+/–; 6...Nc4 7.Bc4 dc4 8.Be5 Qd7 9.Nc3=; 6...Nh6 7.Be5 (7.Bc3 Nc4 8.d3 Nb6 9.a4=) 7...Qd7 8.Bf4 0–0–0 9.c3+=) 7.Nd4 (7.Bc3 Nc4= 8.a4 e6 9.d3+=; 7.Nc3 Nf6 8.a3 Nc4 9.Bc4=) 7...Be4 (7...Bg6!?= 8.Ba3 Qb6 9.Nc3=) 8.d3+= Qb4?? (better is 8...Bg6+= 9.f4+=) 9.Bc3+– Qd6 (9...Qa4 10.de4 de4 11.Nd2+–) 10.de4 (10.Ba5?! Bg6+–) 10...Nc4 (10...b6 11.Nf5 Qg6 12.Qd5+–) 11.Nf5 Qc5 (11...Qg6 12.Qd5 Nd6 13.Nd6 Qd6 14.Qb7+–) 12.Qd5 Qd5 13.ed5 Nd6 (13...Nb6 14.Ng7 Kd7 15.Nf5+–) 14.Ng7 Bg7 (14...Kd7+–) 15.Bg7 0–0–0 (15...f6 16.Bh8 Kf7 17.g4+–) 16.Bh8 f6 17.Nc3 (better is 17.e4!? Nh6 18.Bg7 Nhf7+–) 17...Nh6 18.b6! cb6 (18...ab6 19.Bf6; 18...cb6 19.Bf6) 19.Bf6! ef6 20.Be2 (20.Bd3 Rd7+–) 20...Nhf5 (20...Nhf7 21.Rd1+–) 21.g4 Ne7 22.Bd3 h6 (22...Ng6 23.h4+–) 23.Ke2 (23.Rd1 b5+–) 23...Rf8 (23...Kd7 24.e4+–) 24.Kf3 (24.e4 Kd7+–) 24...f5 (24...Kd7 25.Rad1+–) 25.Kg3 (better is 25.gf5 Nef5 26.e4 Nh4 27.Ke2 Nf3+–) 25...fg4 (25...Kd7 26.gf5 Nef5 27.Kg4 Rg8 28.Kf4+–) 26.hg4 Rh8 (26...Nf7 27.Rad1+–) 27.e4 Nf7 28.Nb5 (28.f4 a6+–) 28...Kb8 (28...a6 29.Nd4+–) 29.d6 (29.f4 a6 30.Nd4 b5+–) 29...Nc6 30.f4 (better is 30.Rad1 a6 31.Bc4 Nce5+–) 30...Nb4 (30...a6 31.Nc3 Nd6 32.e5+–) 31.e5 (better is 31.Bc4 Nc2 32.Rac1 Na3 33.Na3 Nd6+–) 31...Nd5 (31...Nd3 32.cd3 a6 33.Nd4+–) 32.Bc4 a6 33.Bd5 ab5 34.Bf7 (34.Bf7 Ka7 35.e6+–) 1–0. pier_e – pilpolo, internet, 2009.

5.h3 Nf6 6.Nf3 A) 6...Bf5 7.d3 (7.Bc3 Nc4 8.d3 Nb6 9.Be2=; 7.Be2 Nc4 8.Bc4 dc4 9.Be5=; 7.Be5 Qd8 8.Bd3 Bd3 9.cd3=) 7...Qb6 8.Bc3 a6 9.a4+/–; B) 6...Nd7 7.Ba3 (7.a4 Nc4 8.Bc4 dc4 9.0–0=; 7.Bc3 Nc4 8.a4 Nce5 9.Ne5=; 7.d4 Nb6 8.Ba3 Qf6 9.Nc3=) 7...Qe6 8.Nc3 Nb6 9.Bc5+=; C) 6...Qd8 7.Bc3 (7.Bd3 e6 8.Ne5 c5 9.0–0=; 7.Ne5 Bf5 8.Bc3 c5 9.g4=; 7.Bd4 e6 8.Ne5 c5 9.bc6=; 7.Be2 e6 8.Bc3 c5 9.0–0=) 7...c6 8.Be2 e6 9.0–0=.

5.h3 c6

6.Nf3 Nc4 7.Bc4 dc4 8.bc6 (8.Be5 Qg6 9.bc6 Qc6 10.d4 cd3= 11.cd3 f6=) 8...Qc6 9.0–0 f6 10.Ba3 Nh6 11.d3 e5 =.

6.Nf3 cb5

7.Bb5 Bd7 A) 8.Bd7 Qd7 9.Ne5 (9.d3 e6 10.Nbd2 Rc8 11.0–0 Qa4 12.Nb3 Nc6=; 9.0–0 Nc6 10.d3 Rc8 11.Nbd2 e6 12.c4 f6=; 9.Qe2 e6 10.0–0 Rc8 11.Rc1 f6 12.e4 de4=; 9.a3 f6 10.d3 e5 11.Nc3 Ne7 12.Rb1 Rc8=) 9...Qc7 10.c4 dc4 11.Na3 e6 12.Nac4 Nc6+=; B) 8.Be5 Qe6 9.Nc3 Rc8 (9...Nc6 10.Bf4 h6+= 11.Be2 a6 12.Na4 g5+/–) 10.Rb1 a6 11.Bd3 Bc6 12.Bf4 Nf6+=.

7.Bb5 Nc6

8.Be5 Qc5 9.Nc3 a6 10.Bc6 (10.Bd4 Qd6+= 11.Bc6 bc6 (11...Qc6 12.Ne5 Qd6 13.Qf3 Be6 14.a4 f6 15.Nd3+=) 12.e4 de4 13.Ne4 Qg6 14.Qe2 Rb8 15.d3+=) 10...bc6 (10...Qc6+=) 11.Rb1 Nf6? (better is 11...f6 12.Bc7 Qa7+=) 12.Na4+– Qc4?? (better is 12...Qa7 13.Nb6 Nd7 14.Na8 Qa8+–) 13.Nb6 Qa2 14.Ra1 1–0. pierre – johanwassermann, internet, 2008.

8.Be5 Qc5 9.Nc3 f6 10.Bd4 Qd6= 11.Na4 b6 12.c4 dc4 13.Rc1 e5 14.Nb2 Bd7 =.

8.Be5 Qc5 9.Nc3 f6 10.Bg3 A) 10...e5 11.Be2 (11.0–0 a6 12.Ba4 Nge7 13.Bb3 Na5 14.Ne2 Nb3=; 11.Rb1 a6 12.Ba4 Nge7 13.Bb3 Bf5 14.0–0 Na5=; 11.Ba4 Nge7 12.Rb1 a6 13.Bb3 Bf5 14.0–0 Na5=) 11...Bf5 12.Rb1 Nb4 13.Bb5 Kf7 14.Ba4 Ne7+=; B) 10...a6 11.Ba4 (11.Bd3 e5 12.e4 Nge7 13.ed5 Nd5 14.Nd5 Qd5=; 11.Be2 e5 12.e4 Nge7 13.Rb1 Qa5 14.ed5 Nd5+=; 11.Bc6 bc6 12.Rb1 e5 13.0–0 Qa5 14.Nh4 Ne7=; 11.Bf1 e5 12.e4 Nge7 13.ed5 Nd5 14.Ne4 Qa5=) 11...e5 12.e4 Nge7 13.Bb3 de4 14.Ne4 Qb4=.

8.Be5 Qe6 9.0–0 A) 9...Bd7 10.Bf4 (10.Bg3 Nf6 11.Nc3 Ne4 12.Ne4 de4 13.Bc6 Bc6=; 10.Bd4 Nd4 11.Nd4 Qd6 12.Nc3 Nf6 13.Qf3 e6=; 10.Bc7 Nf6 11.Bc6 Bc6 12.Nc3 Ne4 13.Ne4 de4=; 10.Bb2 a6 11.Ba4 Nf6 12.Nc3 Qd6 13.Bc6 Bc6=) 10...Nf6 11.Nc3 Ne4 12.Ne4 de4 13.Ng5 Qg6=; B) 9...a6 10.Bc6 Qc6 11.Bg3 f6 12.Nd4 Qd7 13.Nb3 b5=.

8.Be5 Qe6 9.Nc3 a6 10.Ba4 (10.Bc6 Qc6 11.Nd4 Qd7 12.Qh5 b5 13.Rb1 e6=; 10.Bf4 Ra7+= 11.Be2 Nf6 12.0–0 h6 13.Nd4 Nd4=) 10...Bd7 11.Qb1 Nd8 12.Qb3 Ba4 13.Na4 Rc8 +/–.

8.Be5 Qe6 9.c4 dc4 10.Qc2 Nf6 11.Na3 a6 12.Bc4 Qd7 13.Rc1 e6 =.

8.Be5 Qe6 9.d4 A) 9...Bd7 10.Bf4 (10.Na3 Rc8 11.Rb1 Ne5 12.Ne5 Bb5 13.Rb5 Qa6=; 10.c4 Ne5 11.Ne5 Bb5 12.cb5 Qb6 13.Nc3 e6=; 10.a4 Nf6 11.Nbd2 Ne5 12.Ne5 Bb5 13.ab5 Nd7+=; 10.Nc3 Rc8 11.Bf4 Nb4 12.Rb1 a5 13.Bd7 Qd7=; 10.Bg3 Nf6 11.Nbd2 a6 12.Be2 b5 13.Rb1 Rc8+=) 10...Rc8 11.c4 a6 12.Ba4 Na7 13.Bd7 Qd7+=; B) 9...Nf6 10.c4 Ne4 11.Nbd2 Nd2 12.Qd2 Bd7 13.Bg3 a6+=; C) 9...a6 10.Bd3 Nb4 11.Nc3 f6 12.Bf4 Qc6 13.Qd2 Bd7=.

8.Be5 Qe6 9.Bg3 A) 9...a6 10.Nc3 Ra7 11.Nd4 Qd7 12.Bc6 bc6 13.Na4 e5+/–; B) 9...Bd7 10.Nc3 (10.Be2 a6 11.Nc3 Nf6 12.Na4 Ne4 13.Nb6 Ra7+=; 10.0–0 Nf6 11.Nc3 Ne4 12.Ne4 de4 13.Bc6 Bc6=; 10.a3 Nf6 11.Nc3 Ne4 12.Ne4 de4 13.Bc6 Bc6=; 10.a4 Nf6 11.Nc3 Ne4 12.Bc6 Bc6 13.Nd4 Qd7=) 10...Nf6 11.Be2 a6 12.Na4 Ne5 13.Nd4 Qd6+=; C) 9...Nh6 10.Nc3 (10.Nd4 Qg6 11.Qf3 Nf5 12.Qd5 Nfd4 13.Qd4 Qc2+=; 10.0–0 Nf5 11.Bf4 g6 12.d4 a6 13.Bd3 Bg7=) 10...Nf5 11.Bf4 d4 12.Na4 de3 13.de3 Nd6+=; D) 9...Nf6 10.Nd4 (10.Nc3 Bd7 11.Bd3 Nb4 12.Be2 Ne4 13.Nb5 Rc8=; 10.0–0 Ne4 11.Bf4 Qf6 12.d4 a6 13.Bd3 b5=) 10...Qd7 11.Nc3 e6 12.Qf3 Be7 13.Rb1 0–0=.

4.e3 Bd7

5.a4 a6 A) 6.Nf3 e6 (6...Nf6 7.ba6 ba6 8.Be2 e6 9.0–0 Bd6=; 6...Bg4 7.Bc3 c5 8.Be2 e6 9.0–0 Nf6=; 6...Bf5 7.ba6 ba6 8.Nc3 Nc6 9.Ne2 Bg4=; 6...c5 7.Be2 Bg4 8.ba6 ba6 9.Nc3 Nf6=; 6...ab5 7.ab5 Nf6 8.Ne5 e6 9.Nd7 Nd7+=; 6...Nc4 7.Bc4 dc4 8.Nc3 Bg4 9.h3 Bh5+=; 6...Nh6 7.ba6 ba6 8.Be2 Bg4 9.Nc3 e6+=) 7.Ne5 Nf6 8.Bc3 c5 9.Qf3 c4=; B) 6.Bd4 e6 (6...Nf6 7.Nc3 e6 8.Nf3 Bd6 9.Bd3 c5=; 6...Nh6 7.ba6 ba6 8.Bc3 c5 9.Nf3 f6=) 7.Nc3 Nh6 8.Be5 f6 9.Bg3 Bb4=; C) 6.Qf3 e6 (6...c6 7.Bd4 Nc4 8.Bc4 dc4 9.b6 e5=) 7.Be2 Nf6 8.Nh3 Bd6 9.Nc3 c6=; D) 6.Nc3 Nf6 (6...Nc4 7.Bc4 dc4 8.Nf3 Bg4 9.h3 Bh5+=) 7.Nf3 e6 8.Ne5 Bd6 9.Nd7 Qd7=; E) 6.ba6 ba6 7.Nf3 e6 8.Ne5 Nf6 9.Nd7 Nd7=.

5.a4 b6 6.Nf3 e6 7.Bd3 Qe7 (7...c5 8.0–0+=) 8.0–0 f6 9.e4 0–0–0 10.Bc3 de4 11.Be4 Nb7 (11...e5 12.Ba5 ba5 13.Qe2+/–) 12.Nd4 e5 13.Nc6 Bc6 14.Bc6 Na5 (14...Qc5!?+/–) 15.Qg4+– Kb8 16.Bf3 Nb7? (better is 16...Qc5+–) 17.Qe4 c6 18.bc6 (18.Qc6?! Qc7 19.Qe4 Ne7+–) 18...Nc5 (18...Nd6 19.c7! Kc7 20.Qc6 Kb8 21.Bb4+–) 19.c7! Kc7 (19...Kc7 20.Qc6; 19...Qc7 20.Qa8) 20.Qc6 Kb8 21.Qa8 Kc7 22.Qa7 Kd6 (22...Kc8 23.Qa8 Kc7 24.Qc6 Kb8 25.Qb6 Kc8 26.Bg4 Rd7+–) 23.Qb6 Kd7 24.Qc6# 1–0. b4_player – Gnatman, gamecolony.com, 2006.

5.a4 Nc4 6.Bc3 (6.Bc4 dc4 7.Qe2 Nf6+=) 6...a6 7.d3 (7.ba6!? Ra6 8.Na3+=) 7...Nd6+= 8.Nf3 ab5 9.ab5 Nb5 10.Ra8 Qa8 11.Be2 (11.Bd2!?+=) 11...Nc3–/+ 12.Nc3 Qa5 13.Qd2 Qa1 14.Bd1 e6 15.Ne2 Nf6 16.0–0 Bd6 17.c3 Ba4 (better is 17...0–0!?–/+) 18.Ba4 Qa4 19.Qb2 b6 20.Ra1 Ba3?? (better is 20...Qc6=) 21.Qa3+– Qa3 22.Ra3 0–0 23.Ned4 c5 24.Nc2 Rc8 25.Nd2 h5 26.h3 d4?! (26...e5+–) 27.cd4 Nd5 28.dc5 Rc5 29.Nd4 Rc3 30.Rc3 Nc3 31.Kf1 b5 32.N4b3 b4 33.Nc4 f5 34.Ne5 g5 35.Nc6 Nd5 36.e4 fe4 37.de4 Nf6 38.f3 g4 39.Nb4 gf3 40.gf3 Kf7 41.Kf2 h4 42.Ke3 e5 43.f4 ef4 44.Kf4 Ke6 45.Nd4 Kd6 46.Kf5 Ne4 47.Ke4 Kc5 48.Ndc6 Kc4 49.Kf4 Kc5 50.Kg4 Kb6 51.Kh4 Kc5 52.Kg5 Kd6 53.h4 Ke6 54.Kg6 Kd7 55.h5 Ke8 56.Kg7 Kd7+– 57.h6 Ke6 58.h7 Kd6 59.h8Q Kc5 60.Qd8 Kb5 61.Qd5 Ka4 62.Qc5 Kb3 63.Qc2 1–0. Valpa – Djpnola, playchess.de, 2003.

5.a4 e6 6.Be2 (6.Nf3 a6 (6...f6 7.Be2 e5 8.0–0 Bg4 9.d4 e4=; 6...Nf6 7.Ne5 Bd6 8.Nd7 Kd7 9.Bd3 Qe7=; 6...Ne7 7.Bc3 c5 8.Ne5 Bc8 9.Bd3 Nf5+=; 6...c6 7.Ne5 Nf6 8.Bd3 Bd6 9.0–0 c5=) 7.Ne5 Nf6 8.Bc3 c5 9.Qf3 c4=; 6.Bd3 a6 (6...Nf6 7.Nf3 Bd6 8.0–0 c5 9.Ne5 0–0=; 6...c6 7.Nf3 f6 8.bc6 bc6 9.Ba3 Ba3=; 6...Ne7 7.Nf3 f6 8.Nh4 Qc8 9.Qh5 Kd8=; 6...c5 7.Nf3 Nf6 8.0–0 Bd6 9.Na3 0–0=) 7.Nc3 Nf6 8.ba6 ba6 9.Qe2 Bc8=; 6.Bc3 c5 (6...c6 7.Nf3 Nf6 8.Ne5 Bd6 9.Nd7 Kd7=) 7.Nf3 Nf6 8.Be2 Bd6 9.0–0 0–0=) 6...c5 (6...c6 7.Nf3 Nf6 8.Ne5 Bd6 9.f4 Qc7=; 6...Nf6 7.Nf3 Bd6 8.Ne5 0–0 9.0–0 c6=; 6...f6 7.Nf3 e5 8.0–0 Nc4 9.Bc4 dc4=; 6...a6 7.ba6 ba6 8.Nf3 Nf6 9.Ne5 Bd6=; 6...Ne7 7.Nf3 Nf5 8.Bc3 Nc4 9.Bc4 dc4+=) 7.d3 (7.Nf3 Nf6 8.0–0 Be7 9.Ne5 0–0=) 7...a6 8.c4 ab5 (8...Nf6 9.Be5 Be7=) 9.cb5 (9.ab5 Nf6+=) 9...Bd6?? (better is 9...f6=; 9...Nf6=) 10.Bg7+– Nf6 (10...Qg5 11.Bh8 Qg2 12.Bf3+–) 11.Bh8 Be5 12.Ra2 Qe7 13.Nf3 Qd6 (13...Bd6 14.0–0+–) 14.Ne5 (better is 14.d4 cd4 15.ed4 Qb4 16.Kf1 Bd4 17.Nd4 Ne4+–) 14...Qe5 15.0–0 0–0–0 (15...Ke7 16.d4 cd4 17.ed4+–) 16.Bf6 (16.d4!? Qf5 17.Bf6 Qf6+–) 16...Qf6 17.f4 Rg8 18.Nd2 b6 19.Nb3 Qg7 20.Na5 (better is 20.Bf3 Nb3 21.Qb3+–) 20...Qg2 0–1. Trkn – Antz, itsyourturn.com, 2000.

5.a4 Bf5 A) 6.d3 Nf6 (6...e6 7.Bc3 c5 8.e4 Bg6 9.Qd2 b6=; 6...c5 7.Be2 e6 8.Nd2 Nf6 9.Ngf3 Bd6=) 7.Bc3 c5 8.Qd2 b6 9.Ne2 Nb7=; B) 6.Bd3 Bd3 7.cd3 e6 8.Nf3 Nf6 9.0–0 Bd6=; C) 6.Nf3 e6 (6...Nf6 7.Bc3 c5 8.Be2 Ne4 9.Bb2 Nc4=) 7.Bc3 c5 8.Be2 Nf6 9.0–0 Bd6=.

5.a4 Nf6 A) 6.Bd3 c6 (6...Bg4 7.f3 Bc8 8.Ne2 e6 9.0–0 Bd6=; 6...Nc4 7.Bc4 dc4 8.Qe2 Be6 9.Nf3 Qd5=; 6...g6 7.Nf3 Bg7 8.0–0 c5 9.Be5 0–0=) 7.Bd4 Nc4 8.bc6 Bc6 9.Nf3 Nd7=; B) 6.Nf3 Bg4 (6...Bf5 7.Be2 e6 8.0–0 Bd6 9.d3 Bg4=) 7.h3 Bh5 8.Bc3 c5 9.Be2 e6=.

5.a4 Nh6 A) 6.Bc3 c5 (6...c6 7.d3 f6 8.Qd2 b6 9.Ba5 ba5=) 7.Nf3 e6 8.d4 cd4 9.Qd4 Qc7=; B) 6.Bd3 Bf5 (6...c6 7.Nf3 f6 8.bc6 Bc6 9.Nd4 e5=; 6...Bg4 7.Nf3 f6 8.h3 Bh5 9.g4 Bf7=; 6...e6 7.Nf3 f6 8.Nc3 Bc5 9.0–0 0–0=) 7.Nf3 e6 8.0–0 Bd3 9.cd3 c5=; C) 6.Be2 f6 7.d4 c6 8.Nd2 Qb6 9.c4 dc4=; D) 6.Nf3 f6 (6...Bg4 7.Bc3 c5 8.Be2 e6 9.d3 d4+=; 6...Bf5 7.Be2 Nc4 8.Bc4 dc4 9.0–0 e6+=) 7.d4 Nf7 8.Bd3 Bg4 9.Bc3 c6+=.

5.Nc3 e6 A) 6.Bd3 Qg5 (6...c6 7.Nf3 cb5 8.Nb5 f6 9.Qe2 Qc8=; 6...Nf6 7.Nf3 Bd6 8.e4 de4 9.Ne4 Ne4=; 6...Be7 7.Nf3 Nf6 8.Ne5 c5 9.Qf3 0–0=) 7.Qf3 Nf6 8.Nce2 Bd6 9.h4 Qh5=; B) 6.Qf3 Qh4 (6...Nf6 7.e4 Bc8 8.e5 Nd7 9.Nd1 c6=; 6...c6 7.Rb1 Nc4 8.Bc4 dc4 9.Nge2 Nf6=; 6...Ne7 7.Bd3 Ng6 8.Qh5 Nc4 9.Bc4 dc4=; 6...Be7 7.Nd5 ed5 8.Bg7 Bf6 9.Bh8 Bh8=; 6...Nh6 7.Bd3 c5 8.Be2 Qh4 9.g3 Qd8=) 7.e4 d4 8.Nd1 e5 9.c3 c5=; C) 6.Nh3 Nh6 (6...c6 7.bc6 Bc6 8.Rb1 Nc4 9.Bc4 dc4=; 6...Qh4 7.Nf4 Nf6 8.g3 Qh6 9.Qf3 0–0–0+=; 6...Nf6 7.Qf3 c6 8.Qf4 Rc8 9.a4 Be7=) 7.Qf3 Nf5 8.e4 Nd4 9.Qd3 c5+=; D) 6.a4 Nf6 (6...Be7 7.Nd5 ed5 8.Bg7 Bf6 9.Bh8 Bh8+=; 6...c5 7.bc6 Bc6 8.Nf3 Nf6 9.Ne5 Bc5=; 6...c6 7.Nf3 Nf6 8.Be2 Bd6 9.0–0 e5=) 7.Nf3 Bd6 8.Be2 e5 9.0–0 0–0=; E) 6.f4 Qh4 (6...Nf6 7.Nf3 c6 8.Ne5 cb5 9.Nd7 Nd7=; 6...Be7 7.Nf3 Bf6 8.Rb1 Nh6 9.Be2 Nf5=; 6...Qe7 7.Nf3 0–0–0 8.Be2 Nh6 9.0–0 f6=; 6...c6 7.Nf3 Nf6 8.Ne5 cb5 9.Nd7 Nd7=) 7.g3 Qe7 8.Nf3 0–0–0 9.Ne5 f6=; F) 6.Nf3 Nf6 (6...c6 7.Ne5 Nf6 8.Be2 Bd6 9.f4 Qc7=; 6...Qe7 7.Bd3 Qd6 8.a4 Nf6 9.0–0 e5+=) 7.Ne5 Bd6 8.f4 0–0 9.Be2 c5=.

5.Nc3 Nf6 6.Nf3 Bg4 (6...e6 7.Ne5 Bd6 8.f4 0–0 9.Be2 c5=; 6...Bf5 7.Be2 Qd6 8.d3 e5 9.a3 a6=) 7.h3 Bf3 8.Qf3 e5 9.Qf5 Bd6 =.

5.Bd4 e6 6.Nc3 a6 (6...Nf6 7.Rb1 Qe7 8.Nf3 Qa3 9.Be2 Bc5+=; 6...Nh6 7.Bd3 f6 8.e4 c5 9.bc6 Nc6=; 6...f6 7.Bd3 g6 8.f4 c5 9.bc6 Nc6=; 6...c5 7.Be5 f6 8.Bg3 Ne7 9.Nf3 e5=) 7.ba6 ba6 8.Be5 Nc6 9.Bg3 Nf6 =.

5.Bd4 Bf5 A) 6.Nc3 Nh6 (6...f6 7.Bc5 Nh6 8.d4 e6 9.Bf8 Rf8=) 7.Be2 e6 8.d3 c5 9.Be5 d4=; B) 6.Ne2 Qd6 (6...Nf6 7.Ng3 Bg6 8.h4 h5 9.Bd3 Bd3=; 6...e6 7.Ng3 Bg6 8.Nh5 f6 9.Nf4 Bf7=; 6...f6 7.Bc3 c5 8.Nf4 d4 9.Ba5 Qa5=; 6...Nh6 7.Ng3 e6 8.Be2 c5 9.Bb2 Qh4=) 7.Bc3 Nc4 8.Nd4 Bd7 9.Qf3 Nb6=; C) 6.Bc3 c6 (6...Nc4 7.e4 Bd7 8.a4 c6 9.ed5 cd5=; 6...c5 7.Nf3 Nf6 8.Be2 Ne4 9.Bb2 e6=) 7.Nf3 e6 8.Nd4 Ne7 9.Nf5 Nf5=; D) 6.Nf3 Nh6 7.d3 c6 8.c4 cb5 9.cd5 e6+=.

5.Bd4 Nf6 A) 6.Nf3 Bg4 (6...e6 7.Be2 c5 8.Be5 Ne4 9.d3 Nd6=; 6...c6 7.Nc3 e6 8.Be2 cb5 9.Bb5 Nc6=) 7.h3 Bh5 8.Nc3 e6 9.g4 Bg6=; B) 6.Be2 e6 (6...Nc4 7.Nc3 e5 8.Bc4 Bg4 9.Be2 ed4=; 6...c6 7.a4 Ne4 8.Nf3 e6 9.0–0 c5+=) 7.Nf3 c5 8.Be5 Be7 9.Nc3 0–0=; C) 6.Nc3 e6 7.Be2 Ne4 8.Ne4 de4 9.Rb1 Qg5=.

5.Bd4 Nh6 A) 6.Nc3 e6 (6...Bf5 7.Be2 e6 8.Rb1 Bg6 9.Nf3 Nf5=; 6...Nf5 7.Bc5 e6 8.Bf8 Rf8 9.Bd3 Nd6=) 7.Bd3 c5 8.Be5 c4 9.Be2 f6+=; B) 6.a4 e6 (6...Nf5 7.Bc3 c5 8.Nf3 f6 9.d4 cd4=; 6...Bf5 7.d3 e6 8.Bc3 c5 9.e4 Bg4=; 6...c6 7.Nf3 f6 8.Bc5 e5 9.Bf8 Rf8=) 7.Nf3 f6 8.Bc3 c5 9.Be2 Bd6=.

5.Nf3 a6 6.ba6 ba6 7.Ne5 Nc4 8.Nc4 dc4 9.Bc4 Bb5 10.Qf3 Bc4 11.Qc6 Qd7 12.Qa8 Qd8 13.Qc6 1–0. guest1826 – anonymous, ICC, 2002.

5.Nf3 Nc4 6.Bc3 Bb5+= 7.a4 (7.Ne5 Nf6+=) 7...Ba6 (7...Bc6 8.d3 Nd6 9.Ne5+=) 8.Be2 c6 (8...e6 9.Ne5+=) 9.0–0 Qc7 (9...Nf6 10.d3 Nd6 11.Be5+=) 10.d3= Nd6 11.Be5 (11.Nbd2 f6=) 11...f6 12.Bf4 (better is 12.Bd6!? Qd6 13.d4+=) 12...e5–/+ 13.Bg3 Nf5 14.c4 (14.Nc3 Ng3 15.fg3 Qa5–/+) 14...dc4 15.dc4 Rd8 16.Qb3 (16.Qc2 Ng3 17.hg3 Bb4–/+) 16...Nge7 (16...Ng3 17.hg3 e4 18.Nd4–/+) 17.Nc3–/+ c5 (17...h5 18.e4 Ng3 19.hg3–/+) 18.Nb5 (18.Rad1 Ng3 19.hg3 Nc6+=) 18...Bb5 19.cb5 b6 (19...Ng3 20.Bc4 Nc6 21.fg3–/+) 20.Bc4 (better is 20.Rad1=) 20...Ng3?? (20...Ng6 21.Bd5=) 21.fg3 (21.Bf7 Kd7 22.Qe6) 21...Nd5?? (better is 21...Ng6=) 22.Bd5+– Qd6 (22...Rd6+–) 23.Bc6 Ke7 24.Rfd1 (24.Ng5 Rd7 25.Bd7 Kd7+–) 24...g5 (24...c4 25.Qc2 Qc7 26.Rd8 Kd8 27.Rd1 Bd6+–) 25.Rd6 Rd6 26.Ne1 (26.Rd1 c4 27.Qb4 Kf7 28.Rd6 Kg7 29.Rd7 Kh6 30.Qc4 Be7 31.Qf7 Rg8 32.Re7 Rg7 33.Qg7 Kh5 34.Qh7 Kg4 35.Qh3) 26...Bh6 (26...a5 27.Rd1 c4 28.Qc2 Rc6 29.bc6+–) 27.Nd3 (27.a5 c4 28.Qc4 g4+–) 27...e4 (27...Rhd8 28.Be4+–) 28.Nf2 f5 29.Rd1 (29.Qc3 Rc8 30.Qe5 Re6 31.Qf5 Rf8+–) 29...Rhd8 (29...Rd1 30.Qd1 Rd8 31.Qh5+–) 30.Rd6 Rd6 31.h3 (31.Qg8 Kf6 32.g4 Re6 33.Qh7 Bg7 34.gf5 Rc6 35.bc6 Kf7 36.Qg6 Kf8 37.c7 Bf6 38.c8Q Ke7 39.Qge8 Kd6 40.Qee6) 31...g4 (31...Kf8 32.g4 fg4 33.Ne4+–) 32.hg4 fg4 33.Ng4 Rd3 (33...Rg6 34.Nh6 Rh6+–) 34.Qg8 (34.Nh6?! Rb3 35.Be4 Ra3+–) 34...Be3 35.Ne3 (35.Kh2 Bg1 36.Kh1 Rd7 37.Qg7 Ke8 38.Nf6 Kd8 39.Qd7) 35...Re3+– 36.Qh7 Kf6 37.Qh6 Ke5 38.Qe3 c4 39.Qe4 Kf6 40.Qc4 (40.g4 c3 41.Qf4 Kg7 42.g5 Kg6 43.Qf6 Kh5 44.Bf3 Kh4 45.Qf4) 40...Kg5 41.Qf4 (41.Qe6 a5 42.Be4 Kh5 43.Qg6) 41...Kg6 42.g4 Kg7 (42...a6 43.g5 ab5 44.Qf6 Kh7 45.Qh6 Kg8 46.Bd5) 43.Qf5 (43.g5 Kg6 44.Qf6 Kh5 45.Bf3 Kh4 46.Qf4) 43...Kg8 44.Qf6 Kh7 45.Be4 (45.g5 Kg8 46.Bd5 Kh7 47.Qh6) 45...Kg8 46.Bd5 Kh7 47.g5 a6 48.g6 (48.Qh6) 48...Kh6 49.Qh4 (49.g7 Kh7 50.g8Q) 49...Kg7 (49...Kg6 50.ba6 Kf5 51.Qh5 Kf6 52.a7 Ke7 53.Qe5 Kd7 54.a8Q b5 55.Qae8) 50.Qh7 (50.Qe7 Kg6 51.g4 Kh6 52.Be4 ab5 53.Qf6) 50...Kf6+– 51.Qf7 Ke5 (51...Ke5 52.ba6 b5+–). stoker – ERIC1, Live Game Caissa's Web, 2005.

5.Nf3 Nc4 6.Bc4 dc4 7.Nc3 Nf6 (7...c6 8.bc6 Bc6 9.Qe2 Bf3 10.Qf3=) 8.Qe2 e6 (8...Bg4 9.h3 Bh5 10.Qc4 Bf3 11.gf3+/–) 9.0–0 a6 10.a4 ab5 (10...Bd6 11.Qc4 0–0 12.e4+/–) 11.ab5 Ra1 12.Ra1 Be7 (12...Bd6 13.Qc4 e5 14.Nd5+/–) 13.Qc4 0–0 14.Na4 b6 (14...c6 15.b6+/–) 15.e4 Qa8? (better is 15...Ne8!? 16.e5 f6+–) 16.Nb6! Qa1?! (16...cb6 17.Ra8) 17.Ba1 cb6 18.Qa4 Rc8 19.d3 Ne8 20.Ne5 Rc7 21.Bd4 Bc8 22.Bb6 Rb7 23.Nc4 Nd6 24.Qa8 h5 25.Nd6 Rb6 26.Nc8 Rb5 27.Ne7 Kh7 28.Qg8 Kh6 29.Qh8 Kg5 30.Qg7 Kh4 31.Qg3# 1–0. pcmvr (1700) – gdraper (1715), net–chess.com, 2006.

5.Nf3 Nc4 6.Bc4!? dc4 7.Ne5 +=.

5.Nf3 Nf6 6.Bd4 Bg4 (6...e6 7.Nc3 c5 8.Be5 Ne4 9.Ne4 de4=) 7.h3 Bh5 8.Nc3 e6 9.g4 Bg6 =.

5.Nf3 Nf6 6.Be2 Nc4 7.Bf6 ef6 8.Nc3 Be6 9.Bc4 dc4 =.

5.Nf3 Nf6 6.Be2 e6 7.0–0 Bd6 8.a4 Ng4 (8...0–0 9.Ne5=) 9.h3 (better is 9.Bg7!? Rg8 10.Bc3+/–) 9...Nf6= 10.Na3 0–0 11.c4 a6 12.cd5 ab5 (12...ed5!? 13.Qc2 Re8=) 13.de6+/– Be6 14.Nb5 (worse is 14.Bb5 c6 15.Bd3 Nb3=; worse is 14.ab5 Nb3–/+) 14...Nc6 15.Nbd4 (15.Nd6 cd6 16.Qb1+/–) 15...Ne4? (better is 15...Bd5+=) 16.Nc6+– bc6 17.Qc2 Nc5 18.Qc3 f6 19.d4 (19.a5 Qe7 20.Bc4 Bc4 21.Qc4 Qf7 22.Qf7 Kf7+–) 19...Ne4?? (better is 19...Na4 20.Qc2 Nb2 21.Qb2 c5+=) 20.Qc6+– Qd7?? (20...f5 21.a5+–) 21.Qc2 (better is 21.Qe4 Bf5 22.Qd5 Be6+–) 21...Bf5? (21...Bd5+–) 22.Bd3 Rfe8 23.Nh4 Bh3 24.Be4 Qg4 25.Bh7 Kf8 26.Bf5 Qh4 27.Bh3 Ke7 28.Ba3 Ba3 29.Ra3 Rh8 30.Qc7 Kf8 31.Qd6 Kg8 32.Qe6 Kf8 33.Qd6 Ke8?? 34.Qc6 Kf7 35.Qd5 Kg6 36.Qf5 Kf7 37.d5 g5 38.d6 g4 39.Qg4 Rag8 40.Qh4 (40.Qh4 Rh4 41.Kh2+–) 1–0. Fournier,Frederic – vonpatagonia, Active (5/0), 2004.

5.Nf3 Nf6 6.Be5 Bg4 (6...e6 7.Nc3 Ne4 8.Rb1 f6 9.Ne4 de4=; 6...Nc4 7.Bc4 dc4 8.a4 a6 9.Nc3 Bg4+=; 6...c6 7.Nc3 Nc4 8.Bc4 dc4 9.Nd4 Ng4=; 6...Bf5 7.Bd3 Bd3 8.cd3 a6 9.Nc3 Nd7=) 7.h3 Bh5 8.d4 Ne4 9.Be2 Nc4 =.

5.Nf3 Nf6 6.Ne5 Bf5 7.g4 Bg6 8.d3 e6 9.Qd2 c5 +=.

5.Nf3 Nf6 6.Bf6 ef6 7.Nc3 Be6 8.Bd3 Bc5 9.0–0 f5 =.

5.Nf3 Bg4 A) 6.h3 Bh5 (6...Bf5 7.Nc3 e6 8.d3 Nf6 9.Be2 Bg6=) 7.Be2 e6 8.0–0 Nf6 9.d3 a6=; B) 6.Bd3 Nf6 (6...e6 7.0–0 Nf6 8.Bc3 Nc4 9.h3 Bh5=) 7.0–0 e6 8.Bc3 Nc4 9.Qe2 Nd6=; C) 6.Be2 e6 (6...Bf3 7.Bf3 Nc4 8.Bc3 e6 9.0–0 Qh4=; 6...Nf6 7.Ne5 Be2 8.Qe2 e6 9.0–0 Bd6=) 7.0–0 Nf6 8.Ne5 Be2 9.Qe2 Bd6=; D) 6.Bd4 e6 (6...Nf6 7.h3 Bh5 8.g4 Bg6 9.Ne5 e6=; 6...Qd6 7.Be2 f6 8.h3 Bf3 9.Bf3 e5=; 6...f6 7.h3 Bh5 8.Bc5 e5 9.Bf8 Kf8=) 7.h3 Bh5 8.g4 Bg6 9.Ne5 Be4=; E) 6.Bc3 Nc4 7.Bc4 dc4 8.Qe2 Qd5 9.Na3 Bf5+=.

5.a4 c6

6.Na3 a6 A) 7.Nf3 Nf6 (7...ab5 8.ab5 Nf6 9.Bd3 g6 10.Ne5 Bg7 11.Qf3 0–0 12.0–0 Ng4; 7...Bf5 8.ba6 ba6 9.Nd4 Bd7 10.Bd3 Nf6 11.Nf3 e6 12.0–0 Bd6; 7...h6 8.Bd3 Nf6 9.Ne5 e6 10.0–0 Bd6 11.Qf3 Qc7 12.Nd7 Nd7; 7...h5 8.Ne5 Nf6 9.Bd3 Qc7 10.0–0 h4 11.h3 e6 12.Qf3 Bd6) 8.Bd3 g6 9.ba6 ba6 10.Ne5 Bg7 11.Bc3 0–0 12.0–0 Be6; B) 7.Be2 Nf6 (7...Qb6 8.Nf3 Nf6 9.Ne5 Bf5 10.0–0 e6 11.Bd4 Bc5 12.Bc5 Qc5; 7...ab5 8.ab5 Nf6 9.Nf3 g6 10.0–0 Bg7 11.Ne5 0–0 12.Bd4 Qc7; 7...h6 8.Nf3 Nf6 9.Ne5 e6 10.0–0 Bd6 11.Bd3 0–0 12.ba6 ba6; 7...e6 8.Nf3 Nf6 9.0–0 Bb4 10.ba6 ba6 11.Ne5 0–0 12.Bd3 Ne4; 7...Nh6 8.Nf3 f6 9.ba6 ba6 10.0–0 Rb8 11.Bc3 e5 12.d4 e4; 7...Bf5 8.Nf3 Nf6 9.0–0 ab5 10.ab5 g6 11.Ne5 Bg7 12.g4 Be6; 7...Rc8 8.Nf3 Nf6 9.Ne5 e6 10.0–0 Bd6 11.Bd3 0–0 12.Qf3 Qc7; 7...Qc8 8.ba6 ba6 9.Nf3 Nf6 10.0–0 e6 11.Be5 Be7 12.Qb1 Qd8; 7...Bc8 8.Nf3 Nf6 9.0–0 Ne4 10.ba6 ba6 11.Rb1 e6 12.Qc1 Rb8; 7...Qc7 8.ba6 Nf6 9.Nf3 e6 10.Be5 Bd6 11.Bd6 Qd6 12.Qb1 Qc7; 7...c5 8.Nf3 Nf6 9.0–0 g6 10.ba6 ba6 11.c4 Bg7 12.cd5 0–0; 7...h5 8.Nf3 Nf6 9.Ne5 Bf5 10.0–0 h4 11.ba6 ba6 12.h3 Qd6) 8.Nf3 ab5 9.ab5 g6 10.Ne5 Bg7 11.h4 Qc7 12.Nd7 Qd7; C) 7.Bd3 ab5 (7...Nf6 8.Nf3 g6 9.ba6 ba6 10.Rb1 Bg7 11.Bd4 Rb8 12.Ne5 Bf5; 7...c5 8.Nf3 Nf6 9.Ne5 c4 10.Be2 g6 11.Nd7 Qd7 12.Bc3 ab5) 8.ab5 Nf6 9.Nf3 g6 10.Ne5 Bg7 11.bc6 bc6 12.Bd4 0–0; D) 7.ba6 ba6 (7...Nf6 8.Nf3 ba6 9.Be2 g6 10.Rb1 c5 11.0–0 Bg7 12.Ne5 0–0; 7...e6 8.Nf3 Nf6 9.ab7 Nb7 10.Be2 Bd6 11.0–0 0–0 12.c4 Nc5; 7...h6 8.Nf3 Nf6 9.Bd3 ba6 10.0–0 e6 11.Ne5 Rb8 12.Bc3 Bd6; 7...h5 8.Nf3 Nf6 9.Rb1 ba6 10.Bd3 Rb8 11.0–0 e6 12.Be5 Rb1; 7...Nh6 8.Nf3 ba6 9.Rb1 Bf5 10.Bd3 Rb8 11.0–0 e6 12.Qc1 Bd3) 8.Nf3 Nf6 9.Be2 Ne4 10.0–0 f6 11.Rb1 Kf7 12.d3 Nc5.

6.Na3 cb5 A) 7.ab5 Nf6 (7...e6 8.Nf3 Nf6 9.Ne5 Qc7 10.Bd3 Bd6 11.Nd7 Kd7 12.Qf3 Be5; 7...Qc7 8.Nf3 Nf6 9.Be5 Qc5 10.Bd4 Qd6 11.Bd3 g6 12.c4 Bg7; 7...Bf5 8.Nf3 Nf6 9.Ne5 Qd6 10.Bd3 Bg6 11.0–0 Ne4 12.h3 Nc5; 7...Rc8 8.Nf3 Nf6 9.Bd3 g6 10.Ne5 Bg7 11.Qf3 0–0 12.Bd4 Ne4; 7...Rb8 8.Nf3 Nf6 9.Bd3 g6 10.0–0 Bg7 11.Ne5 0–0 12.Qf3 Be6; 7...h5 8.Nf3 Nf6 9.Bd3 g6 10.Bc3 Bg7 11.0–0 0–0 12.Qb1 Ne4) 8.Nf3 Rc8 9.Bd3 g6 10.Ne5 Bg7 11.Qf3 0–0 12.0–0 Be6; B) 7.Nb5 a6 8.Nd4 Nf6 9.Ngf3 Qc7 10.Bd3 Nc4 11.Bc4 dc4 12.Ne2 e6; C) 7.Bb5 Nf6 (7...a6 8.Bd7 Qd7 9.Nf3 Nc6 10.0–0 Nf6 11.c4 Ne4 12.Rc1 h5; 7...Bb5 8.ab5 e6 9.Nf3 Nf6 10.0–0 Bb4 11.Ne5 0–0 12.d3 Rc8; 7...Nc6 8.Nf3 Nf6 9.0–0 a6 10.Be2 Qa5 11.c4 e6 12.cd5 ed5; 7...Rc8 8.Nf3 Nf6 9.Ne5 Nc6 10.Nd7 Qd7 11.a5 e6 12.a6 b6; 7...e6 8.Nf3 Nf6 9.0–0 Bd6 10.Ne5 0–0 11.f4 Bc6 12.Rf3 a6; 7...h5 8.Nf3 Nf6 9.Ne5 Nc6 10.0–0 Ne5 11.Be5 a6 12.Bd7 Qd7; 7...Bc6 8.Nf3 Nf6 9.Ne5 a6 10.Be2 Ba4 11.0–0 Rc8 12.Nac4 Nc4) 8.Nf3 a6 9.Bd7 Qd7 10.0–0 Qa4 11.Ne5 Nc6 12.f4 Qe4.

6.Na3 Qb6 A) 7.Bd3 a6 (7...Nf6 8.Nf3 Bg4 9.h3 Bh5 10.0–0 Ne4 11.Rb1 Bf3 12.gf3 Nd6; 7...e6 8.Nf3 Nf6 9.Ne5 Bd6 10.Qf3 Qc7 11.Nd7 Qd7 12.Bf6 gf6; 7...c5 8.Nf3 c4 9.Be2 Nf6 10.Ne5 Qd6 11.0–0 Bf5 12.Bd4 h5; 7...Qc5 8.Nf3 Nf6 9.Ne5 g6 10.Bd4 Qd6 11.bc6 bc6 12.0–0 Bg7; 7...h5 8.Nf3 Nf6 9.Ne5 h4 10.Qf3 e6 11.0–0 Bd6 12.Nd7 Nd7; 7...Rd8 8.Nf3 Nf6 9.0–0 g6 10.bc6 Qb2 11.cd7 Rd7 12.Nb5 Nc6; 7...Qc7 8.Nf3 Nf6 9.Be5 Qb6 10.0–0 Ne4 11.Nh4 Rc8 12.f3 Nc5; 7...h6 8.Nf3 Nf6 9.0–0 e6 10.Ne5 Bd6 11.f4 Rd8 12.Rb1 c5; 7...Be6 8.Nf3 Nf6 9.0–0 g6 10.Nd4 Bd7 11.bc6 Nc6 12.Nab5 Bg7; 7...Nh6 8.Nf3 Bf5 9.0–0 Bd3 10.cd3 e6 11.Qc2 Rc8 12.e4 Qd8; 7...Rc8 8.Nf3 Nf6 9.Ne5 e6 10.0–0 Bd6 11.Qf3 Qc7 12.Qg3 0–0; 7...0–0–0 8.Nf3 Nf6 9.Ne5 Be8 10.Rb1 c5 11.Qf3 e6 12.0–0 Be7) 8.Nf3 Nf6 9.Ne5 e6 10.0–0 Bd6 11.Qf3 Qc7 12.Qf4 0–0; B) 7.Be2 Nf6 (7...cb5 8.ab5 Nf6 9.Bd4 Qc7 10.Nf3 Bf5 11.Be5 Qd7 12.0–0 Rc8; 7...e6 8.Nf3 Nf6 9.Ne5 Bd6 10.Bd3 h5 11.Qf3 Qc7 12.bc6 bc6; 7...Qc5 8.Bc3 b6 9.Nf3 Nf6 10.bc6 Qc6 11.Ne5 Qb7 12.Nd7 Kd7; 7...Nh6 8.Nf3 f6 9.0–0 Kf7 10.bc6 Nc6 11.Rb1 Nb4 12.Bd4 Qd6; 7...f6 8.Nf3 Nh6 9.0–0 Nf5 10.Bd3 e5 11.Nh4 Nh4 12.Qh5 Kd8; 7...a6 8.Nf3 Nf6 9.Ne5 Bf5 10.0–0 e6 11.Bd4 Bc5 12.Bc5 Qc5; 7...c5 8.Nf3 Nf6 9.0–0 e6 10.Ne5 Bd6 11.Nd7 Kd7 12.c4 Qc7; 7...Bf5 8.Nf3 Nf6 9.0–0 g6 10.Be5 Bg7 11.Nd4 0–0 12.Nf5 gf5) 8.Nf3 e6 9.Ne5 Bd6 10.Bd3 h5 11.Qf3 Qc7 12.bc6 bc6; C) 7.Nf3 Nf6 (7...Bf5 8.Nd4 Bd7 9.Bd3 Nf6 10.Nf3 c5 11.Ne5 c4 12.Bd4 Qd6; 7...e6 8.Bd3 Nf6 9.0–0 Bd6 10.Ne5 0–0 11.Qf3 Qc7 12.Nd7 Nd7) 8.Ne5 Bf5 9.Bd3 Bd3 10.cd3 e6 11.0–0 Bd6 12.Ng4 Nh5.

6.Na3 Rc8 A) 7.Bd3 Nf6 (7...cb5 8.ab5 Nf6 9.Nf3 g6 10.Ne5 Bg7 11.f3 0–0 12.0–0 Be6; 7...c5 8.c4 Be6 9.Qc2 Nf6 10.Nf3 dc4 11.Bc4 Nc4 12.Nc4 Qd5) 8.Nf3 g6 9.Ne5 Bg7 10.Nd7 Qd7 11.Bc3 b6 12.Ba5 ba5; B) 7.Be2 cb5 (7...Nf6 8.Nf3 g6 9.Ne5 Bg7 10.h4 c5 11.Bf3 Bf5 12.h5 Ne4; 7...e6 8.Nf3 Nf6 9.0–0 Bd6 10.Ne5 0–0 11.f4 Ne4 12.d3 Nc5) 8.ab5 Nf6 9.Nf3 e6 10.Ne5 Bd6 11.Bd3 Qc7 12.Nd7 Qd7; C) 7.Nh3 Qc7 (7...Nf6 8.Bd3 Qc7 9.bc6 bc6 10.Rb1 e5 11.Ng5 h6 12.Nf3 Bd6; 7...e6 8.Nf4 Nf6 9.Bd3 Bd6 10.Nh5 Nh5 11.Qh5 e5 12.h4 g6; 7...cb5 8.Bb5 Nf6 9.Nf4 a6 10.Bd7 Qd7 11.0–0 e6 12.Bc3 Nc6; 7...Bh3 8.gh3 Nf6 9.Bd3 e6 10.Rg1 c5 11.Qf3 c4 12.Be2 Ne4; 7...Bf5 8.g4 Bg6 9.Nf4 Nf6 10.d3 e6 11.g5 Nd7 12.Qd2 Nc5) 8.Bd3 Nf6 9.0–0 Bg4 10.Qe1 Bh3 11.gh3 e6 12.f4 Bb4; D) 7.Ne2 Nf6 (7...e6 8.Nf4 Nf6 9.Bd3 Bb4 10.Nh5 Rg8 11.0–0 cb5 12.ab5 h6; 7...cb5 8.ab5 Nf6 9.Nf4 e6 10.Bd3 Bb4 11.Nh5 Rg8 12.0–0 h6; 7...Qc7 8.Ng3 Nf6 9.Bd3 h5 10.h3 h4 11.Ne2 e5 12.Nc3 Be7) 8.Nf4 Qc7 9.Bd3 e5 10.Nh5 Rg8 11.h3 e4 12.bc6 Qc6; E) 7.Nf3 Nf6 (7...h5 8.Bd3 Nf6 9.Ne5 g5 10.Bc3 Bg7 11.Nd7 Kd7 12.Qf3 e6; 7...Bf5 8.Be2 Nf6 9.Nh4 Bd7 10.0–0 cb5 11.ab5 g6 12.Nb1 Bg7; 7...h6 8.Bd3 Nf6 9.0–0 g6 10.Ne5 Bg7 11.Nd7 Qd7 12.Bc3 b6) 8.Ne5 g6 9.Bd3 Bg7 10.Bc3 0–0 11.0–0 Be6 12.f4 Ne4.

6.Na3 e6 7.bc6 Nc6 (7...bc6 8.Nf3 Nf6 9.Bd3 Rb8 10.Be5 Rb4 11.c3 Rb7 12.0–0 Bc5; 7...Bc6 8.Nb5 a6 9.Nd4 Nf6 10.Ngf3 Bb4 11.Bd3 0–0 12.Nc6 Nc6) 8.Nf3 Nf6 9.Nb5 Bc5 10.Bd3 0–0 11.0–0 a6 12.Nbd4 Ne4.

6.Na3 e6 7.Bd3 Nf6 (7...Qc7 8.f4 Nf6 9.Nf3 Be7 10.Ne5 0–0 11.0–0 c5 12.Bc3 c4; 7...cb5 8.Nb5 Nc4 9.Bc4 dc4 10.Nf3 Nf6 11.0–0 a6 12.Na3 b5; 7...c5 8.Nf3 c4 9.Be2 Nf6 10.0–0 Bb4 11.Ne5 0–0 12.Bc3 Qe7; 7...f5 8.bc6 Nc6 9.Nb5 e5 10.c4 a6 11.Nc3 d4 12.Nd5 Nf6; 7...a6 8.Nf3 Nf6 9.Ne5 Bd6 10.0–0 0–0 11.ba6 ba6 12.Bc3 Qc7) 8.Nf3 Bd6 9.Ne5 c5 10.c4 0–0 11.Nd7 Nd7 12.cd5 Ne5.

6.Na3 e6 7.Be2 Nf6 8.Nf3 Bb4 9.0–0 0–0 10.d3 a6 11.Ne5 ab5 12.ab5 Qe7.

6.Na3 e6 7.Nf3 Nf6 (7...f5 8.Bd3 Nf6 9.0–0 Bb4 10.Qb1 Qe7 11.bc6 bc6 12.Bc3 Rb8; 7...h5 8.Bd3 Nf6 9.0–0 h4 10.Ng5 c5 11.c4 Bd6 12.f4 Kf8; 7...c5 8.Ne5 Nf6 9.c4 Bd6 10.Bd3 0–0 11.Nd7 Nd7 12.cd5 Ne5; 7...cb5 8.Nb5 Nf6 9.Be5 Rc8 10.Na7 Rc5 11.Nb5 Be7 12.Nd6 Bd6; 7...a6 8.ba6 Nf6 9.Bd3 ba6 10.0–0 Bd6 11.Rb1 0–0 12.Ne5 Rb8) 8.Be2 (8.Bd3 Bd6 9.Ne5 Qc7 10.f4 0–0 11.Bc3 c5 12.0–0 c4) 8...Ne4 (8...Bd6 9.0–0 Qc7 10.Bd3 e5 11.h3 0–0 12.Rb1 e4) 9.0–0 f6 (9...Bb4 10.Bg7 Rg8 11.Bb2 Qb6 12.d3 Nc3) 10.d3 (10.Nd4 c5 11.d3 Nd6 12.Nb3 Nb3) 10...Ng5? (better is 10...Nc5 11.c4 (11.bc6 bc6 12.Bc3 Na4) 11...dc4 (11...Be7 12.bc6 Bc6) 12.Nc4 Nc4+= (12...cb5 13.ab5 Nc4 14.dc4 e5=)) 11.Ng5+– fg5 12.Bh5 g6? (better is 12...Ke7+–) 13.Bh8 Bd6 (13...Ba3 14.Ra3 Qe7 15.Ra2 gh5 16.Qh5 Qf7 17.Qg5+–) 14.Be2 e5 15.bc6 Bc6 (15...bc6 16.d4 Qe7 17.Qd2+–) 16.d4 e4 17.Nb5 Kd7 (17...Nc4 18.Bc4 dc4 19.Qg4 Bb5 20.ab5+–) 18.Be5 Be5 19.de5 h5 20.Qd4 Ke6 21.f3 Qe7 (21...Qb8+–) 22.fe4 de4 (22...Rf8+–) 23.Nc7! Qc7 (23...Qc7 24.Rf6 Mate attack) 24.Rf6 Ke7 25.Qc5 Kd8 26.Rd1 1–0. marere – uxu, internet, 2011.

6.Na3 Bf5 A) 7.Be2 Nf6 (7...e6 8.Nf3 Nf6 9.0–0 Bd6 10.Nd4 0–0 11.f4 Re8 12.d3 Bb4; 7...a6 8.Nf3 ab5 9.ab5 Nf6 10.0–0 g6 11.Nd4 Bd7 12.c4 c5; 7...cb5 8.Bb5 Nc6 9.Nf3 Nf6 10.Nd4 Bd7 11.0–0 Qc7 12.Bd3 a6; 7...Qd6 8.Nf3 Nf6 9.bc6 Nc6 10.Nb5 Qd7 11.Nh4 a6 12.Nf5 ab5; 7...c5 8.Nf3 Nf6 9.0–0 g6 10.Nh4 Be6 11.f4 Bg7 12.f5 Bc8; 7...Qc7 8.Nf3 Nf6 9.bc6 Nc6 10.Nb5 Qb6 11.0–0 a6 12.Nbd4 Qb2; 7...h6 8.Nf3 Nf6 9.0–0 Rc8 10.h3 e6 11.Nd4 Bg6 12.Bc3 Ne4; 7...h5 8.Nf3 Nf6 9.0–0 c5 10.h3 Qb6 11.d3 e6 12.Nh4 Bh7; 7...Rc8 8.Nf3 Nf6 9.0–0 e6 10.Nd4 Bd6 11.Nf5 ef5 12.bc6 Nc6; 7...Qb6 8.Nf3 Nf6 9.0–0 g6 10.Nd4 Rg8 11.d3 a6 12.Qd2 ab5) 8.Nf3 e6 9.Nd4 Bd6 10.0–0 0–0 11.f4 Ne4 12.d3 Nc5; B) 7.Nf3 Nf6 (7...e6 8.Nd4 Nh6 9.Bc3 Rc8 10.bc6 Nc6 11.Nab5 Qd7 12.Be2 e5) 8.Nh4 Bg6 9.bc6 Nc6 10.Ng6 hg6 11.Nb5 a6 12.Nd4 Qd6; C) 7.Ne2 Nf6 (7...Nh6 8.Nd4 Bd7 9.Be2 e5 10.Nf3 f6 11.0–0 Nf5 12.d3 Kf7) 8.f3 e6 9.Nd4 Bg6 10.bc6 bc6 11.Bd3 Bd3 12.cd3 e5; D) 7.h3 Nf6 (7...Rc8 8.Ne2 Nf6 9.Nd4 Bd7 10.Be2 c5 11.Nf3 g6 12.Ne5 Bg7; 7...e6 8.Nf3 Nf6 9.Nd4 Bg6 10.Bd3 Bd6 11.0–0 0–0 12.bc6 bc6; 7...a6 8.Nf3 ab5 9.ab5 Nf6 10.Be2 e6 11.Nd4 Bd6 12.Nf5 ef5; 7...Be4 8.d3 Bf5 9.Nf3 Nf6 10.Bc3 c5 11.Be2 e6 12.e4 Bg6; 7...Qb6 8.Nf3 Nf6 9.Bd3 Bd3 10.cd3 e6 11.0–0 Bd6 12.Qc2 0–0; 7...h6 8.Nf3 Nf6 9.Nd4 Be4 10.f3 Bg6 11.bc6 bc6 12.Bd3 Bd3; 7...h5 8.Nf3 Nf6 9.Be2 e6 10.0–0 Bd6 11.d3 0–0 12.Nh4 Bh7) 8.Nf3 e6 9.Nd4 Be4 10.f3 Bg6 11.bc6 bc6 12.Bd3 Bd3; E) 7.g4 Bg6 (7...Be4 8.Nf3 e6 9.d3 Bf3 10.Qf3 Rc8 11.Qf4 Bd6 12.Qf3 Bf8) 8.Nf3 Nf6 9.Ne5 e6 10.Bg2 Bb4 11.0–0 0–0 12.Qe2 Qe7; F) 7.bc6 bc6 (7...Nc6 8.Nf3 Nf6 9.Bd3 Ne4 10.0–0 h5 11.Nd4 Nd4 12.Bd4 a6) 8.Nf3 Nf6 9.Bd3 Bd3 10.cd3 e6 11.Ne5 Rb8 12.Bc3 Ba3; G) 7.Bd3 Bd3 (7...Nh6 8.Nf3 Bd3 9.cd3 Nf5 10.0–0 e6 11.e4 de4 12.de4 Nh4; 7...e6 8.Bf5 ef5 9.Qf3 Nf6 10.Qf5 Bd6 11.Nf3 0–0 12.0–0 Re8; 7...Be4 8.Nf3 Nf6 9.0–0 e6 10.Be4 de4 11.Ne5 Bb4 12.Nac4 Nc4) 8.cd3 Nf6 9.Nf3 e6 10.bc6 bc6 11.0–0 Bd6 12.Qc2 0–0.

6.Na3 Nf6 A) 7.Nf3 g6 (7...Bf5 8.Ne5 e6 9.Bd3 Bd3 10.cd3 Bd6 11.Ng4 h5 12.Nf6 gf6; 7...Ne4 8.Ne5 e6 9.Bd3 Qh4 10.Be4 Qe4 11.0–0 f6 12.d3 Qh4; 7...e6 8.Ne5 Qc7 9.Bd3 Bd6 10.f4 0–0 11.0–0 Ne4 12.Be4 de4; 7...cb5 8.ab5 Ne4 9.Ne5 e6 10.Bd3 Qh4 11.Be4 Qe4 12.0–0 Bd6) 8.bc6 Nc6 9.c4 e6 10.g4 h6 11.Nb5 Be7 12.h4 a6; B) 7.Nh3 Bh3 (7...Rc8 8.Bd3 cb5 9.ab5 Bg4 10.f3 Bh3 11.gh3 Qd7 12.Bd4 Qh3; 7...Ne4 8.Bd3 Bh3 9.gh3 e6 10.Rg1 Qc7 11.f4 Qe7 12.Be4 de4; 7...e6 8.Bd3 Bd6 9.Qf3 0–0 10.0–0 e5 11.Qg3 Qe7 12.f4 e4; 7...g6 8.Nf4 Bg7 9.Bd3 Qc7 10.h4 0–0 11.h5 Nh5 12.Bg7 Ng7; 7...Qc7 8.Bd3 g6 9.bc6 bc6 10.0–0 Rb8 11.Rb1 Bg4 12.Qc1 Bg7; 7...cb5 8.Bb5 a6 9.Bd7 Qd7 10.0–0 Qa4 11.Nb1 Qb5 12.Bf6 gf6; 7...Bg4 8.Be2 Be2 9.Qe2 e6 10.Nf4 Bd6 11.0–0 0–0 12.f3 a6; 7...h6 8.Nf4 Qc7 9.Bd3 e5 10.Nh5 Nh5 11.Qh5 Bd6 12.f4 0–0; 7...Bf5 8.Nf4 e6 9.Bd3 Bd3 10.cd3 Bd6 11.0–0 0–0 12.Bc3 Rc8; 7...a6 8.Nf4 Qc7 9.Be2 e5 10.b6 Qd6 11.Nd3 e4 12.Ne5 Qb4; 7...Rg8 8.Bd3 g5 9.Bf6 ef6 10.Qh5 Rh8 11.f4 Bd6 12.fg5 Qe7; 7...Qb8 8.Bd3 e5 9.Bc3 Qc7 10.bc6 bc6 11.f4 e4 12.Be2 Rb8) 8.gh3 Ne4 9.Bd3 e6 10.Rg1 Qd6 11.Rg2 Rg8 12.bc6 Nc6; C) 7.Be2 g6 (7...cb5 8.ab5 e6 9.Nf3 Bb4 10.0–0 0–0 11.c4 Qe7 12.Ne5 Rfc8; 7...e6 8.Nf3 Qc7 9.Ne5 Bd6 10.f4 0–0 11.0–0 Ne4 12.d3 Nc5; 7...Qc7 8.Nf3 e6 9.Ne5 Bd6 10.f4 0–0 11.0–0 Ne4 12.d3 Nc5; 7...c5 8.Nf3 g6 9.Ne5 Bg7 10.h4 Be6 11.Nd3 c4 12.Ne5 Qc7) 8.Nf3 Bg7 9.Ne5 0–0 10.0–0 Qc7 11.d3 Bf5 12.Qd2 a6; D) 7.bc6 Nc6 (7...bc6 8.Nf3 Ne4 9.Bd3 Rb8 10.Be5 Rb4 11.0–0 f6 12.Bc3 Ra4; 7...Bc6 8.Nf3 e6 9.Nb5 a6 10.Nbd4 Bd6 11.Bd3 0–0 12.0–0 Ne4) 8.Nf3 e6 9.Bd3 Bc5 10.Nb5 0–0 11.0–0 Ne4 12.Qe2 f5; E) 7.Bd3 g6 (7...c5 8.Nf3 c4 9.Be2 e6 10.Ne5 Bb4 11.0–0 0–0 12.Bc3 Qe7; 7...cb5 8.ab5 g6 9.Ne2 Bh6 10.Nf4 0–0 11.0–0 d4 12.Ne2 e5; 7...Ne4 8.Nf3 Bg4 9.h3 Bh5 10.bc6 bc6 11.0–0 Bf3 12.gf3 Nc5; 7...e6 8.Nf3 Qc7 9.Ne5 Bd6 10.Ng4 e5 11.Nf6 gf6 12.Qh5 Rg8; 7...Qc7 8.Nf3 e6 9.Ne5 Bd6 10.f4 0–0 11.0–0 Ne4 12.Be4 de4) 8.Nf3 Bg7 9.0–0 0–0 10.h3 cb5 11.ab5 Rc8 12.Qe2 Ne4.

6.Na3 h5 A) 7.Bd3 h4 (7...Nf6 8.Nf3 g6 9.0–0 Bg7 10.Be5 0–0 11.Ng5 Ng4 12.Bg7 Kg7; 7...c5 8.Nf3 Nf6 9.Ne5 c4 10.Be2 h4 11.Bf3 e6 12.h3 Bd6; 7...cb5 8.ab5 Nf6 9.Nf3 e6 10.Ne5 Bd6 11.Qf3 Qc7 12.Nd7 Nd7) 8.Nf3 h3 9.gh3 Nf6 10.Ng5 Bh3 11.Nh3 Rh3 12.Bf6 gf6; B) 7.Be2 cb5 (7...Nf6 8.Nf3 g6 9.bc6 Nc6 10.c4 e6 11.0–0 Be7 12.cd5 ed5; 7...h4 8.Nf3 h3 9.g3 Nf6 10.Ne5 e6 11.Bd3 Bd6 12.Qf3 Qe7; 7...e6 8.Nf3 Nf6 9.Ne5 h4 10.Bd3 Bd6 11.Qf3 c5 12.Bc3 c4; 7...Bg4 8.Bg4 hg4 9.Qg4 Nf6 10.Bf6 ef6 11.Nf3 Qd7 12.Qg3 Qd6; 7...Qb6 8.Nf3 Nf6 9.Ne5 Bf5 10.0–0 h4 11.h3 e6 12.Rb1 c5; 7...Rc8 8.Nf3 Nf6 9.Ne5 Bf5 10.0–0 e6 11.Ra2 h4 12.h3 Bd6; 7...a6 8.Nf3 Nf6 9.Ne5 ab5 10.ab5 h4 11.h3 Bf5 12.0–0 Qb6) 8.ab5 Nf6 9.Nf3 h4 10.Ne5 h3 11.g3 e6 12.c4 Ne4; C) 7.Ne2 Nf6 (7...Qc7 8.bc6 bc6 9.f4 Nf6 10.Be5 Qc8 11.Ra2 h4 12.h3 Ne4; 7...h4 8.Nf4 Nf6 9.Bd3 Qc7 10.Bf6 gf6 11.Qf3 Rg8 12.h3 f5; 7...a6 8.Nf4 Nf6 9.ba6 ba6 10.Be2 Qc7 11.0–0 h4 12.Rb1 h3; 7...cb5 8.ab5 Nf6 9.Nf4 e6 10.Qf3 Bb4 11.Bd3 Rc8 12.h4 Qe7; 7...e6 8.Nf4 Nf6 9.Be2 Bd6 10.0–0 h4 11.c4 0–0 12.Bd3 e5; 7...Qb6 8.Nf4 Nf6 9.Be2 h4 10.bc6 bc6 11.Be5 Bf5 12.Bd3 Bd3; 7...Rc8 8.Nf4 Nf6 9.Bd3 h4 10.Bd4 Qc7 11.Bf6 gf6 12.h3 Rg8; 7...Rh6 8.Nf4 Nf6 9.Be2 h4 10.bc6 bc6 11.Be5 Bf5 12.Bd3 Bd3) 8.Nf4 Qc7 9.Be2 h4 10.Nh5 h3 11.Nf6 gf6 12.g3 Bg7; D) 7.Nh3 Nf6 (7...e6 8.Bd3 Nf6 9.0–0 Bd6 10.f4 0–0 11.Ng5 g6 12.Ra2 c5; 7...h4 8.Bd3 Nf6 9.Ng5 h3 10.g3 c5 11.Qf3 Qc7 12.Qf4 Qf4; 7...Qc7 8.Ng5 f6 9.Nh3 Nh6 10.Nf4 Ng4 11.h3 Ne5 12.d4 Nac4; 7...Bg4 8.Be2 Nf6 9.Ng5 e6 10.h3 Bf5 11.0–0 Bd6 12.Bc3 h4; 7...cb5 8.ab5 Nf6 9.Nf4 e6 10.Qf3 Bb4 11.Bd3 Rh6 12.0–0 g5; 7...Bf5 8.Bd3 Bd3 9.cd3 e6 10.0–0 Nf6 11.Ng5 Bd6 12.f4 Qe7; 7...Bh3 8.gh3 Nf6 9.Qf3 e6 10.Bd3 Bb4 11.Rg1 Ne4 12.c3 Bf8; 7...a6 8.Bd3 Nf6 9.Ng5 ab5 10.ab5 c5 11.0–0 c4 12.Be2 Bf5; 7...Rc8 8.Nf4 Nf6 9.Bd3 h4 10.h3 Qc7 11.Bf6 gf6 12.0–0 Bg7; 7...Qb6 8.Nf4 Nf6 9.Bd3 Qc7 10.Bf6 gf6 11.0–0 h4 12.h3 f5) 8.Bd3 e6 9.0–0 Bd6 10.f4 c5 11.c4 0–0 12.cd5 ed5; E) 7.Be5 Nf6 (7...h4 8.Nf3 Nf6 9.h3 Ne4 10.d3 Nc5 11.Qd2 f6 12.Bc3 b6; 7...c5 8.Nf3 Nf6 9.Be2 Ng4 10.Bb2 Qc7 11.h3 Nf6 12.Be5 Qb6) 8.Be2 g6 9.Nf3 Bg7 10.0–0 0–0 11.Ng5 Ne4 12.Bg7 Kg7; F) 7.Bd4 c5 (7...Nf6 8.Nf3 e6 9.Bd3 c5 10.Be5 c4 11.Be2 Bb4 12.0–0 Qe7; 7...Rc8 8.Nf3 Nf6 9.Ne5 c5 10.Bc3 Ne4 11.Qf3 f6 12.Nd7 Kd7; 7...e6 8.Nf3 Nf6 9.Ne5 c5 10.Bc3 Ne4 11.Qf3 f6 12.Nd7 Kd7; 7...Bg4 8.Nf3 Nf6 9.h3 Bf5 10.Bd3 Bd3 11.cd3 e6 12.0–0 Bd6; 7...Qc7 8.Nf3 Nf6 9.Bd3 e6 10.bc6 bc6 11.0–0 Ng4 12.h3 e5; 7...Bf5 8.Bd3 Bd3 9.cd3 Nf6 10.Nf3 e6 11.0–0 Bd6 12.bc6 bc6; 7...b6 8.Nf3 c5 9.Be5 Nh6 10.Be2 Ng4 11.Bb2 e6 12.h3 Nf6) 8.Bc5 Nf6 9.Nf3 g6 10.Bd3 Bg7 11.0–0 Ne4 12.Bd4 0–0; G) 7.h3 Nf6 (7...cb5 8.Nb5 a6 9.Nd4 e5 10.Ndf3 f6 11.Ne2 Bd6 12.Ba3 Ba3; 7...Bf5 8.Nf3 Nf6 9.Be2 e6 10.Nd4 Bg6 11.bc6 bc6 12.Bc3 Bc5; 7...a6 8.Nf3 Nf6 9.Ne5 Bf5 10.Be2 Qd6 11.0–0 h4 12.ba6 ba6; 7...Qb6 8.Nf3 Nf6 9.Ne5 Bf5 10.Rb1 Qc5 11.Bd3 Ne4 12.Be2 Rh6; 7...h4 8.Nf3 Nf6 9.Bd3 Ne4 10.0–0 f6 11.Qe2 Kf7 12.bc6 bc6) 8.Nf3 Ne4 9.Bd3 cb5 10.ab5 f6 11.0–0 e5 12.Nh4 Bc5; H) 7.Nf3 Nf6 (7...e6 8.Bd3 Nf6 9.Ne5 h4 10.Qf3 Bd6 11.Bc3 c5 12.h3 c4; 7...h4 8.Bd3 h3 9.g3 Bg4 10.Be2 Nf6 11.Ne5 Be2 12.Qe2 e6 ; 7...c5 8.Be2 Nf6 9.0–0 g6 10.c4 Bf5 11.d4 Rc8 12.Rc1 Bg7; 7...Rc8 8.Ne5 Nf6 9.Bd3 g5 10.h4 g4 11.0–0 Rg8 12.Nd7 Qd7; 7...a6 8.Bd3 Nf6 9.Ne5 ab5 10.ab5 c5 11.c4 Be6 12.Qc2 Nc4; 7...Nh6 8.Bd3 Ng4 9.0–0 c5 10.h3 c4 11.Be2 Nf6 12.d3 cd3; 7...cb5 8.Nb5 a6 9.Nbd4 Qc7 10.Nb3 Nf6 11.Be5 Qb6 12.Rb1 Ne4; 7...Rh6 8.Ne5 Nf6 9.Bd3 Qc7 10.0–0 h4 11.Nd7 Nd7 12.bc6 bc6; 7...b6 8.bc6 Nc6 9.c4 e6 10.cd5 ed5 11.Nb5 Nf6 12.Rc1 a6; 7...Rb8 8.Bd3 Nf6 9.Ne5 e6 10.0–0 Bd6 11.Qf3 h4 12.h3 Qc7) 8.Ne5 e6 9.Bd3 h4 10.Qf3 Bd6 11.h3 Qc7 12.Nd7 Qd7.

6.Nc3 cb5 7.ab5 (7.Nf3 ba4 8.Ne5 Nf6 9.Nd7 Qd7 10.Bb5 Nc6 11.Na4 Qc7 12.Qf3 e6) 7...Nf6 (7...e6 8.Nf3 Nf6 9.Ra4 Bd6 10.Qa1 b6 11.Bd3 0–0 12.0–0 Qc7; 7...Nc4 8.Bc4 dc4 9.Nf3 Nf6 10.Ne5 Qc7 11.f4 g6 12.Nd7 Qd7) 8.Nf3 e6 9.Ra4 Bd6 10.Qa1 b6 11.Bd3 0–0 12.0–0 Qc7.

6.Nc3 Qc7 A) 7.Bd3 Nf6 (7...a6 8.ba6 ba6 9.Nf3 Nf6 10.Ne2 e6 11.0–0 Bd6 12.Rb1 e5; 7...Qd6 8.Nf3 Nf6 9.0–0 c5 10.e4 Bg4 11.h3 c4 12.Be2 de4; 7...h5 8.Nf3 Nf6 9.0–0 c5 10.Re1 c4 11.Bf1 h4 12.h3 Bf5; 7...h6 8.Nf3 Nf6 9.0–0 c5 10.h3 e5 11.Rb1 e4 12.Nd5 Nd5; 7...Rd8 8.Nf3 Nf6 9.0–0 c5 10.Re1 e6 11.g3 c4 12.Bf1 Bc5; 7...e6 8.Nf3 Nf6 9.0–0 c5 10.Re1 Be7 11.Ba3 0–0 12.h3 Rfe8; 7...Rb8 8.Nf3 Nf6 9.0–0 e6 10.Qe2 c5 11.Qe1 c4 12.Be2 Bd6; 7...Nc4 8.Bc4 dc4 9.Qe2 a6 10.ba6 Ra6 11.Nf3 Nf6 12.0–0 e5; 7...Rc8 8.Nf3 Nf6 9.0–0 c5 10.Re1 e6 11.h3 c4 12.Bf1 Bc5; 7...f5 8.Nf3 Nf6 9.Nd4 e5 10.Nb3 Nc4 11.Qc1 Kf7 12.0–0 Bd6; 7...e5 8.Nh3 Bh3 9.gh3 e4 10.Be2 Nf6 11.Rc1 Be7 12.Rg1 0–0) 8.Nf3 a6 9.0–0 e5 10.e4 Bd6 11.Ba3 0–0 12.b6 Qb8; B) 7.Be2 e6 (7...Nf6 8.Nf3 e6 9.0–0 Bd6 10.g3 0–0 11.Re1 e5 12.d3 h6; 7...e5 8.Nf3 Nf6 9.bc6 bc6 10.d4 Rb8 11.de5 Ng4 12.Rb1 Bc5; 7...a6 8.Nf3 Nf6 9.0–0 Nc4 10.Bc4 dc4 11.Qe2 cb5 12.ab5 Rb8) 8.Nf3 Nf6 9.bc6 bc6 10.0–0 Rb8 11.Rb1 Bd6 12.h3 0–0; C) 7.Nf3 Rd8 (7...Nf6 8.Bd3 Rd8 9.0–0 Nc4 10.Bc4 dc4 11.h3 e6 12.Qe2 Bd6; 7...a6 8.Bd3 Nf6 9.ba6 ba6 10.0–0 e5 11.e4 Bd6 12.Rb1 0–0; 7...h5 8.Bd3 Nf6 9.0–0 Nc4 10.Bc4 dc4 11.Qe2 h4 12.bc6 Qc6; 7...h6 8.Bd3 Nf6 9.0–0 c5 10.Rb1 e6 11.b6 ab6 12.Nb5 Bb5; 7...Qd6 8.Ba3 Qc7 9.bc6 bc6 10.d4 Nf6 11.Ne5 e6 12.Bf8 Kf8; 7...f5 8.Bd3 Nf6 9.0–0 e6 10.Rc1 Bd6 11.bc6 bc6 12.Rb1 e5) 8.d4 Nf6 9.Ne5 g6 10.Bd3 Bg7 11.Qf3 Be6 12.0–0 0–0.

6.Nc3 e6 A) 7.Bd3 Nf6 8.Nf3 Bd6 9.bc6 Bc6 10.Qe2 0–0 11.0–0 Ne4 12.Nd4 Nc5; B) 7.bc6 Bc6 (7...bc6 8.Nf3 Nf6 9.Bd3 Rb8 10.Rb1 Bd6 11.Ne2 0–0 12.0–0 Qe7; 7...Nc6 8.Nf3 Nf6 9.Bd3 Bc5 10.0–0 0–0 11.Nb5 Ne4 12.Qe2 Nb4) 8.Nf3 Nf6 9.Ne5 Bc5 10.Bd3 Nc4 11.Bc4 dc4 12.0–0 Qe7; C) 7.f4 Nf6 (7...cb5 8.ab5 Nh6 9.Nf3 Nf5 10.Bd3 Nd6 11.Ne5 Nac4 12.Bc4 Nc4; 7...Nh6 8.Nf3 Nf5 9.Bd3 Bc5 10.0–0 0–0 11.bc6 Bc6 12.Ne5 f6; 7...Ne7 8.Nf3 Nf5 9.Bd3 Bc5 10.0–0 0–0 11.Ne5 f6 12.Nd7 Qd7; 7...Bb4 8.Nd5 ed5 9.Bg7 Qh4 10.g3 Qe7 11.c3 Qe4 12.cb4 Qh1) 8.Nf3 Bd6 9.Bd3 0–0 10.0–0 Qc7 11.Ba3 c5 12.Ne5 Rac8; D) 7.Be2 Nf6 (7...Qc7 8.f4 Nf6 9.Nf3 Bd6 10.0–0 0–0 11.Ba3 c5 12.Ne5 b6; 7...Qb6 8.Nf3 Nf6 9.0–0 Bd6 10.bc6 Nc6 11.Nb5 Bb4 12.Ng5 h6) 8.Nf3 Bd6 9.0–0 0–0 10.h3 Qc7 11.Bd3 c5 12.Re1 c4; E) 7.Nh3 Nf6 (7...cb5 8.ab5 Nf6 9.Nf4 Bd6 10.Ba3 Ba3 11.Ra3 0–0 12.Qa1 b6; 7...Be7 8.Qg4 g6 9.Qf4 Nf6 10.Be2 0–0 11.0–0 Re8 12.Qh6 Bf8; 7...a6 8.ba6 ba6 9.Rb1 Nf6 10.Bd3 Bc5 11.Qe2 0–0 12.0–0 e5) 8.Nf4 e5 9.Nh5 Ng4 10.bc6 bc6 11.h3 Qh4 12.Ng3 Nf6; F) 7.Qf3 Nf6 8.Qg3 Bc5 9.Nf3 0–0 10.Ne5 Bd6 11.f4 cb5 12.ab5 Nh5; G) 7.Qg4 Nh6 (7...Nf6 8.Qg3 g6 9.Nf3 Nh5 10.Qh3 e5 11.g4 Bd6 12.Qg2 Nf6; 7...Qc7 8.Nf3 Nf6 9.Qh4 Be7 10.Bd3 h6 11.bc6 bc6 12.Ne2 0–0) 8.Qh5 g6 9.Qf3 Bg7 10.Bd3 e5 11.bc6 bc6 12.Be2 0–0; H) 7.Nf3 Nf6 (7...Qc7 8.bc6 bc6 9.Bd3 Nf6 10.0–0 Rb8 11.Rb1 Bd6 12.e4 0–0; 7...c5 8.Ne5 Nf6 9.f4 Bd6 10.Bd3 Qc7 11.Nd7 Qd7 12.Qf3 c4) 8.Ne5 Bd6 9.f4 Qc7 10.Bd3 Be5 11.fe5 Qe5 12.0–0 0–0.

6.Nc3 Nf6 7.Nf3 Qc7 (7...h5 8.Ne5 Ng4 9.Ng4 hg4 10.Be2 Nc4 11.Bc4 dc4 12.Qe2 Rc8; 7...cb5 8.ab5 e6 9.Bd3 Qc7 10.0–0 Bd6 11.Ba3 Ba3 12.Ra3 0–0; 7...g6 8.Ne5 Qc7 9.f4 Bg7 10.Bd3 Nc4 11.Nc4 dc4 12.Bc4 0–0; 7...Qb6 8.Ne5 e6 9.Bd3 Bd6 10.f4 0–0 11.Qf3 cb5 12.ab5 Rad8; 7...e6 8.Bd3 Bd6 9.0–0 0–0 10.Ba3 c5 11.Qe2 Qb6 12.Qd1 e5; 7...Bc8 8.Bd3 Qd6 9.bc6 bc6 10.Ba3 Qc7 11.0–0 e5 12.Bf8 Kf8; 7...c5 8.Ne5 Qc7 9.Nd7 Qd7 10.Qf3 e6 11.Bd3 c4 12.Be2 Bd6) 8.Bd3 Nc4 9.Bc4 dc4 10.Qe2 cb5 11.Nb5 Bb5 12.ab5 Qc5.

6.Nc3 h5 A) 7.f4 Qc7 (7...Nf6 8.Nf3 Rh6 9.h3 Qb6 10.Ne5 Bf5 11.Ne2 Bh7 12.Rb1 c5; 7...Qb6 8.Nf3 Nf6 9.Bd3 Nc4 10.Bc4 dc4 11.0–0 h4 12.Ne5 h3; 7...Rb8 8.Nf3 Nf6 9.Bd3 c5 10.Ne5 Bg4 11.Ng4 hg4 12.0–0 Qd7; 7...Rh6 8.Nf3 Nf6 9.Bd3 Nc4 10.Bc4 dc4 11.Qe2 a6 12.bc6 Bc6; 7...Bg4 8.Nf3 Nf6 9.h3 Bf5 10.Bd3 Bd3 11.cd3 e6 12.0–0 Bd6; 7...c5 8.Nf3 Nf6 9.Bd3 c4 10.Be2 h4 11.h3 e6 12.0–0 Bd6; 7...Rc8 8.Nf3 Nf6 9.Bd3 Nc4 10.Bc4 dc4 11.Qe2 cb5 12.ab5 Qb6; 7...Nh6 8.Qh5 Bg4 9.Qg5 e6 10.Qd8 Rd8 11.Nf3 Bf3 12.gf3 Nf5; 7...cb5 8.ab5 Nf6 9.Nf3 Qb6 10.Bd3 Rc8 11.Ne5 Bg4 12.Qb1 Nc4; 7...Qc8 8.Nf3 Nf6 9.Ne5 Ng4 10.Nd7 Qd7 11.h3 Nf6 12.Qf3 h4; 7...Bc8 8.Nf3 Nf6 9.Bd3 Nc4 10.Bc4 dc4 11.Qe2 cb5 12.ab5 Bf5; 7...e6 8.Nf3 Nf6 9.Ne5 Bc5 10.Qf3 0–0 11.Bd3 d4 12.Ne2 de3) 8.Nf3 Nf6 9.Be2 c5 10.0–0 h4 11.h3 Bf5 12.Rc1 d4; B) 7.Nh3 Nf6 (7...e5 8.Bd3 Nf6 9.Ng5 e4 10.Be2 Ng4 11.h4 Bd6 12.Ba3 Bf5; 7...Bg4 8.f3 Bh3 9.gh3 Nf6 10.Ra2 d4 11.Ne4 Qd5 12.Nf6 ef6; 7...Qc7 8.Be2 Nf6 9.Ng5 Nc4 10.Bc4 dc4 11.Qe2 cb5 12.ab5 Qc5; 7...e6 8.Nf4 Nf6 9.Be2 Nc4 10.Bc4 dc4 11.0–0 e5 12.Nfe2 h4; 7...Rb8 8.Ng5 e6 9.f4 Be7 10.Nf3 Nf6 11.Ne5 Bc5 12.Bd3 h4; 7...Rc8 8.Bd3 Nf6 9.Ng5 Nc4 10.Bc4 dc4 11.0–0 h4 12.h3 cb5; 7...h4 8.Bd3 Nf6 9.Ng5 Rh5 10.f4 h3 11.gh3 Bh3 12.Rg1 Rh4; 7...Bh3 8.gh3 Nf6 9.Qf3 e5 10.Be2 e4 11.Qg3 Nc4 12.Bc4 dc4; 7...Qb6 8.Nf4 Nf6 9.Be2 d4 10.ed4 Qd4 11.Nd3 Nc4 12.Ra2 a6) 8.Ng5 Qb6 9.Be2 Nc4 10.Bc4 dc4 11.0–0 cb5 12.Nb5 Bb5; C) 7.Bd3 Nf6 (7...Qc7 8.Nf3 Nf6 9.0–0 c5 10.Re1 e6 11.h3 Be7 12.Ng5 0–0; 7...Nc4 8.Bc4 dc4 9.Qe2 Rc8 10.Nf3 Nf6 11.Ne5 Qc7 12.f4 Ng4; 7...cb5 8.ab5 Nf6 9.Nf3 Qc7 10.Ra4 e6 11.0–0 Bd6 12.Qa1 Nc4; 7...Qb8 8.Nf3 Nf6 9.0–0 c5 10.h3 Qc7 11.Qe1 e6 12.Ng5 Bd6; 7...c5 8.Nf3 Nf6 9.Ne5 Qc7 10.Nd7 Qd7 11.0–0 e6 12.f4 Bd6; 7...e6 8.Nf3 Nf6 9.Ne5 Bd6 10.f4 Be5 11.fe5 Ng4 12.0–0 Ne5) 8.Nf3 Qb8 9.0–0 c5 10.h3 Qc7 11.Ng5 h4 12.f4 c4; D) 7.Be2 Nf6 (7...Bg4 8.Nf3 Nf6 9.0–0 Bf3 10.Bf3 Nc4 11.Rb1 Rb8 12.h3 e6; 7...e6 8.Nf3 Nf6 9.Ne5 Bd6 10.f4 Qc7 11.bc6 bc6 12.0–0 Be5; 7...cb5 8.ab5 Nf6 9.Nf3 e6 10.0–0 Qc7 11.Ra4 Bd6 12.Qa1 b6; 7...Qc7 8.Nf3 Nf6 9.0–0 c5 10.Re1 e6 11.Ng5 Bd6 12.f4 h4; 7...Rb8 8.Nf3 Qc7 9.Na2 f6 10.Nc3 Nh6 11.0–0 Kf7 12.Nd4 e5; 7...Nc4 8.Bc4 dc4 9.Qe2 a6 10.bc6 Bc6 11.Nf3 Nf6 12.Ne5 Qc7; 7...Qb8 8.Nf3 Nf6 9.0–0 e6 10.Ng5 Bd6 11.f4 0–0 12.bc6 Bc6; 7...Bf5 8.Nf3 Nf6 9.0–0 Nc4 10.Bc4 dc4 11.bc6 bc6 12.Ne5 Qc7; 7...h4 8.Nf3 Nf6 9.Ne5 e6 10.Bd3 Bd6 11.f4 Qc7 12.bc6 bc6; 7...Rc8 8.Nf3 Qc7 9.0–0 Nf6 10.h3 c5 11.Re1 e6 12.Ng5 Bd6) 8.Nf3 e6 9.Ne5 Bd6 10.f4 Qc7 11.bc6 bc6 12.0–0 h4; E) 7.h4 Bg4 (7...Nf6 8.Nf3 e6 9.bc6 Nc6 10.Be2 Qb6 11.Rb1 Qa5 12.0–0 Rc8; 7...Qc7 8.Be2 Nf6 9.Nf3 Rd8 10.d3 e6 11.0–0 Ng4 12.g3 Be7; 7...Rc8 8.Nf3 Nf6 9.Bd3 Bg4 10.bc6 bc6 11.0–0 e5 12.Be2 Rb8; 7...e6 8.bc6 Nc6 9.Nf3 Nf6 10.Bd3 Nb4 11.0–0 Ng4 12.Qe2 Be7; 7...Rb8 8.Nf3 Nf6 9.Ne5 Ng4 10.Nd7 Qd7 11.Be2 Nc4 12.Bc4 dc4; 7...Rh6 8.Nf3 Nf6 9.Bd3 Bg4 10.bc6 bc6 11.Rb1 Rb8 12.Qc1 Nc4; 7...Qb8 8.Nf3 Nf6 9.Bd3 Qd6 10.bc6 bc6 11.Ba3 Qc7 12.Qe2 e5) 8.Nf3 Nf6 9.Be2 Qc7 10.0–0 Nc4 11.Bc4 dc4 12.e4 e5; F) 7.g3 Qc7 (7...Nf6 8.Nf3 Qc7 9.Be2 a6 10.ba6 ba6 11.Rb1 Rb8 12.Ba6 Rb6; 7...e6 8.Nh3 Nf6 9.Ng5 Ng4 10.f4 Bb4 11.h3 Nf6 12.Bd3 h4; 7...h4 8.gh4 Nf6 9.Nf3 Bg4 10.Be2 Nc4 11.Ra2 cb5 12.ab5 Qd6; 7...cb5 8.ab5 Nf6 9.Nf3 e6 10.Ra4 Bd6 11.Qa1 b6 12.Ba3 Qb8; 7...Qb8 8.Nf3 Nf6 9.bc6 Nc6 10.Bg2 e5 11.0–0 Be7 12.Nh4 e4) 8.Nf3 Nf6 9.Rb1 c5 10.Be2 h4 11.gh4 Qd6 12.d4 c4; G) 7.bc6 bc6 (7...Nc6 8.Nf3 Nf6 9.Be2 h4 10.h3 e5 11.0–0 Be7 12.Ba3 e4) 8.Nf3 Nf6 9.Ne5 Ng4 10.Nd7 Qd7 11.Rb1 Rb8 12.Ba3 Rb1 H) 7.Rb1 e6 (7...Nf6 8.Nf3 e6 9.Bd3 Bd6 10.bc6 Bc6 11.Nb5 Nc4 12.Bc3 Ne4; 7...Qc7 8.bc6 bc6 9.Nf3 Nf6 10.Be2 e6 11.Ng5 Bd6 12.f4 Rb8; 7...Rb8 8.Nf3 Nf6 9.Bd3 Nc4 10.0–0 Nb2 11.Rb2 Qc7 12.bc6 bc6; 7...Bf5 8.Nf3 Nf6 9.Be2 c5 10.Nh4 Bg4 11.h3 Be2 12.Qe2 Nc4; 7...Nc4 8.Bc4 dc4 9.Nf3 Nf6 10.Ne5 cb5 11.Nb5 a6 12.Na3 Ba4; 7...c5 8.Nf3 Nf6 9.Bd3 Qc7 10.0–0 e6 11.h3 c4 12.Be2 Bc5; 7...Qc8 8.Nf3 Nf6 9.bc6 Nc6 10.Be2 e5 11.0–0 Be7 12.d4 ed4; 7...cb5 8.Bb5 Bb5 9.ab5 Nf6 10.Nf3 e6 11.0–0 Nc4 12.Qe2 Bc5; 7...Nh6 8.bc6 Nc6 9.Ba3 e5 10.Bf8 Kf8 11.Rb7 d4 12.Ne4 Bf5) 8.Nf3 Nf6 9.Ne5 Bd6 10.f4 Be5 11.fe5 Ng4 12.Qf3 Ne5; I) 7.Nf3 Nf6 (7...Qc7 8.Bd3 Nf6 9.0–0 h4 10.h3 c5 11.Re1 e6 12.Qb1 c4) 8.Ne5 Ng4 9.Nd7 Qd7 10.h3 Ne5 11.d3 e6 12.Be2 Bb4.

6.bc6 bc6 A) 7.Nf3 Nf6 (7...Qb6 8.Ba3 Nf6 9.Nc3 Qc7 10.Rb1 e5 11.Bf8 Kf8 12.d4 Bg4; 7...Rb8 8.Be5 Rb4 9.Nc3 f6 10.Bg3 e5 11.Rb1 Kf7 12.Ba6 Qb6; 7...Nh6 8.Nc3 Rb8 9.Rb1 g6 10.Nb5 f6 11.Nc3 Bg7 12.Bd3 e5; 7...Bf5 8.Nc3 Nf6 9.Rb1 Rb8 10.Be2 e6 11.Nd4 Bd6 12.0–0 0–0; 7...Rc8 8.Ne5 Nf6 9.Nc3 Rb8 10.Rb1 Be6 11.Bd3 g6 12.Ne2 Qd6; 7...e6 8.Be5 f6 9.Bg3 Nh6 10.Nc3 Be7 11.Rb1 0–0 12.Be2 Nf5; 7...h6 8.Be5 Nf6 9.Nc3 g6 10.Rb1 Bg7 11.Bd3 0–0 12.0–0 c5) 8.Be5 g6 9.Bd3 Bg7 10.Nc3 0–0 11.Rb1 Ng4 12.Bg7 Kg7; B) 7.Bd3 c5 (7...Nf6 8.Nf3 c5 9.Na3 c4 10.Be2 Nc6 11.Ne5 Qb8 12.Nd7 Qb2; 7...h5 8.Nf3 Nf6 9.Be5 Nc4 10.Bc4 dc4 11.Na3 Be6 12.0–0 Qd5; 7...Qb6 8.Be5 Nc4 9.Bc4 dc4 10.Nc3 f6 11.Rb1 Qc5 12.Bd4 Qf5; 7...Nh6 8.Na3 Rb8 9.Be5 Rb7 10.Nf3 f6 11.Bc3 e5 12.Ba6 Rb8; 7...Nb7 8.Nf3 Nc5 9.0–0 Nf6 10.Be5 Nd3 11.cd3 g6 12.Nc3 Bg7; 7...Qb8 8.Bc3 Nb7 9.Nf3 Nc5 10.Be5 Qc8 11.Nc3 Nd3 12.cd3 f6; 7...Nc4 8.Bc4 dc4 9.Na3 Be6 10.Nf3 Qd5 11.0–0 Nf6 12.Ne5 Rb8) 8.Nf3 Nf6 9.Bf6 gf6 10.Nc3 Bc6 11.Rb1 c4 12.Be2 Rg8; C) 7.Be5 f6 (7...Nh6 8.Nc3 Nf5 9.g4 Nd6 10.Nf3 Bg4 11.Rg1 Qd7 12.Bd6 ed6) 8.Bg3 e5 9.Nf3 Nh6 10.Nc3 Bc5 11.Rb1 0–0 12.d4 ed4; D) 7.Na3 Nf6 (7...Rb8 8.Be5 Rb4 9.Nf3 f6 10.Bd4 e5 11.Ne5 Rd4 12.Nd7 Ra4; 7...Bf5 8.Nf3 Nf6 9.Be5 e6 10.Bd3 Bd3 11.cd3 Bd6 12.Nc2 0–0; 7...h6 8.Nf3 Nf6 9.Bd3 Nb7 10.Bd4 e6 11.0–0 Nc5 12.Qe2 Rb8; 7...Nb7 8.Rb1 Nf6 9.Be2 Ne4 10.Nf3 Nbd6 11.Ne5 Rb8 12.0–0 Qa5; 7...e6 8.Nf3 Nf6 9.Bd3 Be7 10.Ne5 Rb8 11.Bc3 Nb7 12.0–0 Nc5) 8.Nf3 Ne4 9.Bd3 Rb8 10.Be5 Rb4 11.0–0 f6 12.Bc3 Nc3; E) 7.Nc3 Nf6 (7...Rb8 8.Rb1 Nf6 9.Nf3 e6 10.Bd3 Bd6 11.0–0 0–0 12.e4 Qc7; 7...Qc7 8.Rb1 Nf6 9.Nf3 e6 10.Bd3 Rb8 11.Ne2 Bd6 12.Bf6 gf6; 7...e6 8.Nf3 Nf6 9.Rb1 Bd6 10.Ba6 0–0 11.0–0 Rb8 12.Qe2 e5; 7...h6 8.Nf3 Qc7 9.Na2 Bf5 10.Be5 Qd7 11.Nb4 e6 12.Na6 Rc8) 8.Rb1 e5 9.Nf3 Bd6 10.d4 e4 11.Ne5 0–0 12.Be2 Rb8.

6.bc6 Bc6 A) 7.Nc3 Nf6 (7...e6 8.Nf3 Nf6 9.Ne5 d4 10.Nb5 de3 11.de3 Bd5 12.f3 Bb4; 7...Nc4 8.Bc4 dc4 9.Nf3 Nf6 10.0–0 Qb6 11.Rb1 Rd8 12.Ne5 Qc7) 8.Nf3 e6 9.Ne5 d4 10.Nb5 de3 11.de3 Bb4 12.c3 Bc5; B) 7.Bd4 f6 (7...Nh6 8.Nc3 f6 9.f4 Nf5 10.Nf3 e6 11.Bd3 Bd6 12.0–0 0–0; 7...Nf6 8.Nf3 e6 9.Nc3 Bd6 10.Nb5 0–0 11.Nd6 Qd6 12.Bf6 gf6) 8.f4 Nh6 9.Bd3 Nc4 10.Nf3 e6 11.0–0 Bd6 12.Qe2 0–0; C) 7.Na3 Nf6 (7...e6 8.Nf3 Nf6 9.Bd3 Bb4 10.0–0 0–0 11.Ne5 Ba4 12.Nb1 Be8; 7...a6 8.Nf3 Nf6 9.Bd3 Ba4 10.0–0 e6 11.Nb1 Bc6 12.Bd4 Bd6; 7...h6 8.Nf3 a6 9.Bd3 Nf6 10.0–0 Ba4 11.Ne5 Nc6 12.Qf3 Qd6; 7...h5 8.Nf3 Nf6 9.Ne5 a6 10.Be2 e6 11.0–0 Ba4 12.Nb1 Bd7) 8.Nf3 e6 9.Bd3 Bb4 10.0–0 0–0 11.Ne5 Ba4 12.Nb1 Be8; D) 7.Nf3 Nf6 (7...e6 8.Bd4 Nf6 9.Nc3 Bd6 10.Nb5 0–0 11.Nd6 Qd6 12.Bf6 gf6; 7...Nh6 8.Nc3 e6 9.Nb5 a6 10.Nbd4 Ng4 11.h3 Nf6 12.Bd3 Bd6; 7...a6 8.Bd4 Nh6 9.Nc3 Nf5 10.Bd3 Nd4 11.Nd4 e5 12.Nc6 Nc6; 7...Rc8 8.Nc3 Nf6 9.Nb5 a6 10.Na7 Ra8 11.Nc6 Nc6 12.Bd3 e6) 8.Bd4 g6 9.Nc3 Bg7 10.Bd3 0–0 11.0–0 Nc4 12.Bc4 dc4.

6.bc6 Nc6 A) 7.Nf3 Nf6 (7...Qb6 8.Be5 Nf6 9.Nc3 e6 10.Rb1 Bb4 11.Na2 Ne5 12.Ne5 Bd2; 7...e6 8.Nc3 Nf6 9.Bd3 Bc5 10.0–0 0–0 11.h3 h6 12.Qe2 Qa5) 8.c4 dc4 9.Bc4 Rc8 10.Na3 e6 11.0–0 Be7 12.Nb5 0–0; B) 7.Na3 Qb6 (7...Nf6 8.Nf3 e6 9.Bd3 a6 10.0–0 Nb4 11.Qb1 Ba4 12.Be2 b5; 7...Rc8 8.Nf3 Nf6 9.Nb5 a6 10.Nbd4 Ne4 11.Bd3 Qb6 12.Nc6 Qb2; 7...e6 8.Bd3 Nf6 9.Nf3 Bc5 10.0–0 0–0 11.Nb5 a6 12.Nbd4 Ne4; 7...h5 8.Nf3 Nf6 9.c4 Bf5 10.Qb3 Na5 11.Qb4 Rb8 12.cd5 Nd5) 8.Rb1 Qd8 9.Nf3 Nf6 10.Be2 a6 11.0–0 Qa5 12.c4 Nd8; C) 7.Nc3 Nf6 (7...Qb6 8.Rb1 e6 9.Ba3 Qc7 10.Nb5 Qb8 11.Bf8 Kf8 12.Nf3 Nf6; 7...e6 8.Bd3 Nf6 9.Nf3 Bc5 10.Ba3 Nb4 11.Ne5 Qc7 12.f4 0–0; 7...h5 8.Nf3 Nf6 9.Be2 e6 10.0–0 Bc5 11.Ba3 Ba3 12.Ra3 0–0) 8.Nf3 e5 9.d4 ed4 10.Nd4 Bc5 11.Nb3 Bb4 12.Bd3 0–0.

6.Nf3 e6 A) 7.Ne5 Nf6 (7...Ne7 8.Bd3 Nf5 9.Na3 Qc7 10.Bc3 Rd8 11.Qe2 Bc8 12.f4 Bc5; 7...h5 8.Na3 Nf6 9.Bd3 Bd6 10.Qf3 Qc7 11.Nd7 Qd7 12.Bf6 gf6) 8.Na3 Qc7 9.Bd3 Bd6 10.Ng4 e5 11.Nf6 gf6 12.Qh5 Bb4; B) 7.Na3 Nf6 (7...f5 8.Be2 Nf6 9.0–0 Be7 10.Ne5 0–0 11.Bc3 Be8 12.d3 Nd7; 7...h5 8.Bd3 Nf6 9.0–0 Bd6 10.g3 Qc7 11.Qe2 e5 12.e4 de4; 7...c5 8.Ne5 Nf6 9.c4 Bd6 10.Bd3 0–0 11.Nd7 Nd7 12.cd5 Ne5) 8.Bd3 Qc7 9.0–0 Bd6 10.h3 0–0 11.Bf6 gf6 12.Nd4 f5; C) 7.Bd3 Nf6 (7...cb5 8.ab5 Nf6 9.Nc3 Qc7 10.0–0 Bd6 11.Ba3 Ba3 12.Ra3 0–0; 7...h5 8.0–0 Nf6 9.Be5 h4 10.h3 Nc4 11.Bc4 dc4 12.Nc3 Bb4; 7...a6 8.ba6 Nf6 9.Be5 ba6 10.Nc3 Bc5 11.0–0 0–0 12.h3 Qe7; 7...f5 8.Nc3 Nf6 9.Ne5 Bd6 10.f4 0–0 11.0–0 c5 12.h3 Qc7; 7...Qb6 8.Na3 Nf6 9.0–0 Bd6 10.Ne5 0–0 11.f4 g6 12.Qe1 Qd8; 7...Nh6 8.0–0 Nf5 9.Nc3 Qb6 10.Rb1 Nc4 11.Bc4 dc4 12.e4 Nd6; 7...Nc4 8.Bc4 dc4 9.Nc3 Nf6 10.Qe2 cb5 11.ab5 Bd6 12.Qc4 0–0; 7...Rc8 8.Ne5 Nf6 9.0–0 Bd6 10.f4 c5 11.Nc3 c4 12.Be2 Qc7; 7...c5 8.0–0 c4 9.Be2 Nf6 10.Be5 Bb4 11.h3 0–0 12.Qc1 Qe7) 8.0–0 Nc4 9.Bc4 dc4 10.Nc3 Bd6 11.Qe2 0–0 12.Qc4 e5.

6.Nf3 Nf6 A) 7.Bd3 Nc4 (7...cb5 8.ab5 Nc4 9.Bc4 dc4 10.Nc3 Qb6 11.0–0 e6 12.Qe2 Bb5; 7...e6 8.0–0 Nc4 9.Bc4 dc4 10.Nc3 cb5 11.ab5 Qb6 12.Qe2 Bb5; 7...Qc8 8.Na3 cb5 9.ab5 g6 10.0–0 Bg7 11.Bc3 Nc4 12.Bc4 dc4; 7...Qb6 8.Ne5 g6 9.Nc3 Be6 10.bc6 Nc6 11.Nb5 Bg7 12.a5 Na5; 7...g6 8.Nc3 Bg7 9.bc6 bc6 10.0–0 0–0 11.Rb1 Nc4 12.Bc4 dc4; 7...c5 8.Nc3 e6 9.Ne5 Bd6 10.f4 Qc7 11.Nd7 Qd7 12.Qf3 c4; 7...a6 8.Na3 g6 9.ba6 ba6 10.Rb1 Bg7 11.0–0 0–0 12.Ne5 Rb8; 7...Rc8 8.Ne5 Nc4 9.Bc4 dc4 10.Na3 cb5 11.ab5 Be6 12.0–0 Qd5; 7...h6 8.Ne5 Qc7 9.Na3 e6 10.0–0 Bd6 11.f4 Rd8 12.Qf3 0–0) 8.Bc4 dc4 9.Na3 cb5 10.ab5 e6 11.0–0 Ba3 12.Ba3 Bb5; B) 7.Nc3 e6 (7...Qc7 8.Bd3 e6 9.0–0 c5 10.Qe1 c4 11.Be2 Bd6 12.Qc1 0–0; 7...g6 8.Be2 Bg7 9.bc6 bc6 10.Ne5 Be6 11.0–0 Rb8 12.Rb1 0–0; 7...c5 8.Ne5 Qc7 9.Nd7 Qd7 10.Qf3 e6 11.Bd3 c4 12.Be2 Bd6) 8.Bd3 Bd6 9.bc6 Bc6 10.Nb5 Nc4 11.Bc4 dc4 12.Qe2 Be7; C) 7.Be5 g6 (7...Ne4 8.d3 Nc5 9.Nc3 f6 10.Bg3 Kf7 11.Be2 e5 12.0–0 Ne6; 7...e6 8.Bd3 Nc4 9.Bc4 dc4 10.Qe2 cb5 11.ab5 Bb5 12.Nc3 a6) 8.Nc3 Bg7 9.Bd3 0–0 10.0–0 Nc4 11.Bc4 dc4 12.Qe2 Rc8; D) 7.Na3 g6 (7...Bf5 8.Nh4 Bg6 9.bc6 Nc6 10.Nb5 a6 11.Nd4 Rc8 12.Ng6 hg6; 7...Ne4 8.Ne5 e6 9.Bd3 Qh4 10.Be4 Qe4 11.0–0 Bd6 12.Qh5 Be5; 7...e6 8.Ne5 Bd6 9.Bd3 c5 10.c4 0–0 11.Nd7 Nd7 12.cd5 Ne5; 7...c5 8.Ne5 g6 9.Bc3 b6 10.Bd3 Bg7 11.0–0 c4 12.Nd7 Qd7) 8.bc6 bc6 9.Bd3 Bg7 10.0–0 0–0 11.Rb1 Rb8 12.Be5 Rb6; E) 7.Ne5 Bf5 (7...Qc7 8.Bd3 g6 9.Nd7 Qd7 10.Bc3 Nc4 11.Na3 Nd6 12.0–0 Bg7; 7...e6 8.Bd3 cb5 9.ab5 Bd6 10.0–0 Qc7 11.f4 Nc4 12.Bc4 dc4; 7...g6 8.Nc3 Qc7 9.f4 Bg7 10.Bd3 0–0 11.0–0 Be6 12.bc6 bc6; 7...c5 8.Nc3 Qc7 9.Nd7 Qd7 10.Qf3 e6 11.Bd3 c4 12.Be2 Bd6; 7...cb5 8.Nd7 Qd7 9.Bb5 Nc6 10.0–0 a6 11.Bd3 e6 12.Qf3 Bd6) 8.g4 Bg6 9.Bg2 e6 10.Nc3 Bd6 11.f4 Nd7 12.Ng6 hg6.

4.e3 e5

5.Be5+/– Nc4 6.Bc4 dc4 7.a4 Bd6?? (better is 7...Nf6+/–) 8.Bg7+– Qg5 9.g3 (better is 9.Bh8 Qg2 10.Qf3+–) 9...Qg7–+ 10.Nc3 Be5 11.Ra3 Bc3 (better is 11...Bg4!? 12.f3 Be6–+) 12.Rc3–/+ Be6 13.Nf3 Bd5 14.Rg1 (14.e4 Be4 15.Rc4 f5–+) 14...0–0–0 15.Qa1?? (15.Nd4 Nf6–+) 15...Ne7 (15...Bf3 16.a5–+) 16.Ra3?? (better is 16.Nd4–+) 16...Qa1 17.Ra1 Bf3 0–1. Valpa – Djpnola, playchess.de, 2005.

5.Be5 Bd6?? 6.Bg7+– f6 (6...Bg4 7.Qg4 (7.Bh8?! Bd1 8.Kd1 Nf6=) 7...h5 8.Qa4+–) 7.Be2 (better is 7.Qh5!? Ke7 8.Bh8 h6+–) 7...Be6 (7...Kf7 8.Bh8 Nh6 9.Bf3+–) 8.a4 (8.Bh8 Nh6 9.Bd3 Qe7 10.Qh5 Kd7 11.Qh6 Rh8+–) 8...Be5 (8...Kd7 9.Bh8 Nh6+–) 9.d4 Qe7 10.Bh8 (10.de5?! Qg7 11.Bh5 Kd8+–) 10...Bd6 11.Bh5 Bf7 12.Bf7 Qf7 13.Ne2 0–0–0 14.Nd2 Nh6 15.Bf6! Qf6 16.Nf3 Rg8 17.Ng3 Bb4 18.Nd2 Rf8? 19.0–0 Qh4 20.Nf3 Ng4 21.Nh4 h5 22.Nh5 b6 23.Qg4 (23.Qg4 Kb8 24.Nf4+–) 1–0. jboger (2210) – femmany, net–chess.com, 2013.

5.Be5+/– f6 6.Bb2 Nc4 7.Bc4 dc4 8.d3 (8.Nc3 Bf5+/–) 8...cd3 9.Qd3 Qd3 10.cd3 Bb4 11.Bc3 Bc3 (11...Bd6 12.Nd2+/–) 12.Nc3 Ne7 13.Nf3 Bg4 14.Nd4 0–0–0 15.0–0 (15.Rc1 Rhe8+/–) 15...Nd5 16.Rac1 Nc3 (16...Nb4 17.f3 Bh5 18.Ne6 Nd3 19.Rcd1+/–) 17.Rc3+– Rhe8 18.Rfc1 Rd7 19.a4 Ree7 20.a5 Kb8 (20...Rd6 21.a6!+–) 21.b6! ab6 (21...ab6 22.ab6 Combination; 21...cb6 22.Rc8 mate Mate attack) 22.ab6 cb6?? (better is 22...Bh5+–) 23.Rc8 (23.Rc8 Ka7 24.Ra1) 1–0. Valpa – Rug_Weaver, playchess.de, 2002.

5.Be5 Nf6 6.Nf3 Bd6 7.Nc3 Be6 8.Bd3 Be5 9.Ne5 0–0 10.0–0 Qd6 11.f4 b6 12.Qe1 d4 13.ed4 Qd4 14.Qf2 (14.Qf2 Qd6 15.Rae1+/–) 1–0. marekt – wrigglyroo, ChessWorld.net, 2012.

5.Be5 Nf6 6.Nf3 Bg4 7.Nc3 Be7 8.h3 Bh5 9.g4 Bg6 10.g5 Ne4 11.Bg7 Rg8 12.Bd4 Bh5 13.h4 c5 14.bc6 bc6 (14...Nc6!? 15.Bb5 f6+/–) 15.d3 Nc3 16.Bc3 Nb7 17.Be2 Nd6 18.Ne5 Be2 19.Qe2 (19.Ke2?! Nb5 20.Bb2 Ba3+/–) 19...Nb5 20.Qh5 Rf8 21.Bd2 (21.Nc6 Qc7 22.Bg7 Qc6 23.Bf8 Qc3 24.Ke2 Qc2 25.Kf3 Bf8 26.Qh7 Nc3+–) 21...Qd6 (21...Qc7 22.f4+–) 22.f4 c5 (22...h6 23.Qh6 Qh6 24.gh6+–) 23.Qh7 c4 24.dc4 dc4 (24...Na3 25.Qd3 dc4 26.Qe4+–) 25.Qe4 Rd8 26.Nc4 Na3 (26...Qd5 27.Qd5 Rd5+–) 27.Nd6 (27...Rd6 28.Qa8 Kd7 29.Qa7 Ke8 30.Qa3+–) 1–0. MT – PauloBarbosa, ICC, 2004.

5.Be5 Nf6 6.h3 Nc4 (6...Bd6 7.Bd6 Qd6 8.Nf3+=) 7.Bc4+/– dc4 8.Nf3 Be7 9.Nc3 1–0. wlittle (2155) – kingtipper (2020), net–chess.com, 2004.

5.Be5 Qg5 6.Bc7+– Nc4 7.Bc4 (better is 7.Nc3!?+–) 7...Qg2 8.Qf3 Qf3 9.Nf3 dc4 10.Rg1 Be7 (better is 10...Bd7!?+/–) 11.Rg7+– Bf6 12.Be5 Bf5 13.Bf6 Nf6 14.Rg5 Bc2 15.Na3 Bg6 (15...Bd3 16.Rc1 Rc8+/–) 16.Nc4 0–0–0 17.Rc1 Kb8 18.d4 Rhg8 19.h4 Ne4 20.Re5 f6 21.Re7 f5 (21...Rde8 22.Re8 Be8+–) 22.Na5 Nd6 23.Rcc7 (23.Ne5 Rc8 24.Rc5 Be8+–) 23...Rc8 24.Rcd7 Rgd8 (24...Rc1 25.Ke2 Rc2 26.Nd2+–) 25.Ne5 Rd7 26.Rd7 b6 (26...Rc1 27.Kd2 Ra1 28.Rd6 Ra2 29.Kc3 Ra5 30.Ng6 hg6 31.Rg6 Rb5+–) 27.Nac6 Ka8 (27...Rc6 28.Nc6 Kc8 29.Rd6 f4 30.Na7 Kc7 31.Rc6 Kb7+–) 28.Ra7 1–0. Fournier,Frederic – Chalvet,Philippe, Partie Libre (Active), 1996.

4.e3 e6

5.Bc3 c5 =.

5.d3 a6 6.ba6 Ra6 7.Nf3 =.

5.d3 Nf6 6.Nf3 Be7 (6...Bd6 7.Be5=) 7.Qd2 b6 8.c4 (8.Be2 a6 9.a4 Bd7=) 8...dc4 (8...a6 9.Be2=) 9.dc4 Qd2 (9...Bb7 10.Bd3=) 10.Nbd2 0–0 11.Be2 Bb4 (11...a6 12.0–0=) 12.0–0 (12.a3 Be7+=) 12...Rd8 13.Rfd1 (13.a3 Bd6+= (worse is 13...Rd2 14.Nd2 Bd2 15.Rad1+/–)) 13...Bb7 14.Bf6 (14.a3 Bd6=) 14...gf6 15.Nf1 (15.Rab1 c5=) 15...Bc3 (15...a6 16.Ng3=) 16.Rac1 Bb2 (16...Bb4 17.Ng3=) 17.Rc2 (17.Rb1 Bc3+=) 17...Ba3 (17...Rd1 18.Bd1 Ba3 19.Ng3=) 18.Rc3 (18.Rcd2 Rd2 19.Rd2 Bd6+=) 18...Bb2 (18...Rd1 19.Bd1 Bb4 20.Rc1=) 19.Rcd3 Rd3 20.Rd3 Nc4? (20...a6 21.Ng3=) 21.Rd7?? (better is 21.Rb3+–) 21...Ne5= 22.Rc7 Nf3 23.Bf3 (23.gf3 Bd5=) 23...Bf3 24.gf3 Be5 (24...a6 25.Rc2 Ba3 26.ba6=) 25.Rd7 (25.Rb7 f5+=). Turcot,J – Kjelkenes,K, corr, 1975.

5.d4 b6 6.Nf3 c5 (6...a6 7.Ne5=) 7.Ne5 (7.dc5 bc5 8.Be2 Nf6+=) 7...c4 (7...Nf6 8.dc5 Bc5 9.Bd3=) 8.Qf3 (8.Qh5 Nh6+=) 8...Nf6 9.Be2 Bd6 10.0–0 (10.Ba3 a6=) 10...0–0 (10...a6 11.Nc3+=) 11.Nd2 (11.Ba3 Ba3 12.Na3 Ne4 13.Nec4 Nc4 14.Nc4 a6+=) 11...Bd7 12.a4 Be5? (better is 12...a6=) 13.de5+– Ne8 14.Ba3 Nd6? (14...Nc7 15.Bf8 Qf8+–) 15.Bd6 Re8 16.e4 Qg5 17.Rfd1 Nb7 18.ed5 ed5 (18...Nd6 19.de6 (worse is 19.ed6 ed5 20.Nf1 Qe5+–) 19...Be6 20.ed6+–) 19.Qd5 (19.Nc4 Be6+–) 19...Nd6 20.Qd6 Bh3 (20...Qe5 21.Qe5 (21.Qd7?! Qe2 22.Nf3 Qc2+–) 21...Re5 22.Bc4+–) 21.Bf3 Rad8 22.Qc6 (22.Ne4 Rd6 23.Ng5 Rd1 24.Rd1 Bf5+–) 22...Re5 (22...Qe5 23.Ne4 Bf5 24.Rd8 Rd8+–) 23.Ne4 Qh4 (23...Re4 24.Rd8 Qd8 25.Qe4+–) 24.gh3 (24.Rd8 Qd8 25.gh3 Re8+–) 24...h6 (24...Rf8 25.Qc4 Qh3 26.Bg2+–) 25.Rd8 Qd8 26.Qc4 (better is 26.Rd1 Qe7 27.Rd7+–) 26...Qf6 (26...Qd7+–) 27.Nf6 gf6 28.Kh1 (28.Qc7 h5+–) 28...Rc5 29.Qg4 Kf8 30.c4 (30.c4 h5 31.Qd7+–; better is 30.Qd7 Kg7+–) 1–0. tschulz – PublicEnemy, MySchachOpen, 2005.

5.d4 Nf6 6.Nf3 =.

5.Nf3 c6 6.Ne5 (6.Bd3 Bd7=) 6...a6 (6...Nf6 7.Bd3=) 7.a4 Bd7 (7...Qc7 8.Bd3=) 8.Qh5 g6 (better is 8...Nh6!?+/–) 9.Ng6!+– fg6 (9...hg6 10.Qh8) 10.Qf3 Nh6 (10...cb5 11.ab5 Qc8 12.Bh8 Qc2 13.ba6 ba6 14.Ra5 Qb1 15.Qd1 Qd1 16.Kd1+–) 11.Bh8 Qe7 (11...Nf7 12.Bf6 Be7 13.Be7 Qe7 14.ba6 ba6 15.Nc3+–) 12.Bc3 Bg7 13.e4 Nc4 (13...b6 14.ba6 d4 15.Ba5 ba5 16.Na3+–) 14.Bc4 dc4 15.ba6 Ra6 16.Bg7 Qg7 17.Nc3 Ke7 (17...Nf7 18.Rb1 Bc8 19.Qe3+–) 18.Rb1 b5 19.ab5 cb5 20.Nb5 Bb5 (20...Qe5 21.Nc3+–) 21.Rb5 Ra1 22.Ke2 Ra7 23.Rhb1 Rd7 24.Qa3 Kf6 25.Kf1 Kf7 26.Rb7 Kf6 27.Qc3 (27…e5 28.R1b6 Kg5 29.Qe3 Kh5 30.Qh3 Kg5 31.Rd7 Qd7 32.Qd7 Nf5 33.ef5 Kg4 34.fg6 Kg5 35.g7 Kf4 36.Rf6 Kg5 37.g8Q Kf6 38.Qgg7) 1–0. Trkn – guest2631, ICC, 2004.

5.Nf3 Bd6?? 6.Bg7+– 1–0. guest2119 – guest348, ICC, 2002.

5.Nf3 f6 6.Bd3 (6.d4 Bd7=) 6...Bc5 (6...Ne7 7.Nh4=) 7.0–0 (7.Ng5 Ke7 8.Nh7 e5+/–) 7...c6 (7...e5 8.Be2=) 8.a4 (8.Ng5 Ke7+= (8...fg5? 9.Bg7 Nf6 10.Bh8+–)) 8...Bd7 (8...e5!? 9.Be2 Bd6=) 9.Ng5!+/– fg5? (better is 9...Ke7 10.Nh7 e5+/–) 10.Bg7+– Nf6 (10...g4 11.Bh8 Qh4 12.Be2+–) 11.Bh8 cb5 (11...Kf7 12.Bf6 Qf6 13.Qh5 Ke7 14.Qh7 Kd6 15.bc6 bc6 16.Nc3+–) 12.ab5 Qb6 (12...Nc4 13.Bc4 dc4+–) 13.Bf6 Kf7 (13...Be7 14.Qh5 Kd8 15.Bc3+–) 14.Bg5 Nc4 (14...Rg8 15.Qh5 Kf8 16.Bh6 Ke7 17.Bh7 Re8 18.Qh4 Kd6+–) 15.Qh5 Kg7 (15...Kf8 16.Qh6 Kf7 17.Qh7 Kf8 18.Bg6 Bb5 19.Qh8) 16.Qh7 Kf8 17.Qe7 (17.Bg6 Bb5 18.Qh8) 17...Kg8?? (better is 17...Be7 18.Be7 Ke7 19.Bc4 dc4–+) 18.Bh7 1–0. Waibel,Ulrich (1830) – Munkwitz,Wolfgang (1825), remoteschach.de, 2004.

5.Nf3 Nf6 6.Bd3 Be7 7.Nc3 0–0 8.0–0 c5 9.bc6 Nc6 10.Nb5 a6 11.Nbd4 b5?? (better is 11...Bd7=) 12.Nc6+– Qc7 13.Ne7 Qe7 14.a4 b4 15.Ne5 Ne4 16.Qh5 g6 17.Qe2 f5 (17...f6 18.Nc4!+–) 18.Bd4 Qe8 (18...Bb7 19.Rab1+–) 19.f3 Nd6 20.a5 Nf7 21.Rfb1 Rb8 (21...Ne5 22.Be5 Rf7 23.Rb4+–) 22.Nf7 Qf7 (22...Rf7 23.Be5 Ra8 24.Rb4+–) 23.Be5 Rb7 24.Ba6 Ra7 25.Bd3 Ba6 (25...Qe7+–) 26.Ba6 Rc8 (26...Rfa8 27.Bd3 Ra5 28.Ra5 Ra5 29.Rb4 Ra8+–) 27.Bc8 1–0. marre – oppo, internet, 2010.

5.Nf3 Nf6 6.Be2 Bd6 7.0–0 0–0 8.a4 Qe7 (8...a6 9.Ne5=) 9.d4 c6 10.Bc3 (10.Ba3 c5=) 10...Qc7 11.Nbd2 (11.Qe1 Nc4 12.Bc4 dc4 13.e4=) 11...Nc4 (11...cb5 12.Ba5 Qa5 13.ab5=) 12.Nc4 (12.Bc4 cb5 13.ab5 dc4+=) 12...dc4= 13.bc6 (13.Bc4? cb5 14.Bd3 Qc3 15.ab5 a5–+) 13...Qc6 14.Nd2 (better is 14.Ne5!? Qc7 15.f4+=) 14...Nd5=+ 15.Nb1 b6 (15...Qc7 16.h3–/+) 16.e4 Nf4 (16...Nc3 17.Nc3 Bb7 18.Bf3=+) 17.Bf3= Be7 18.e5 Nd5 19.Qe1 (19.a5 ba5 20.Be4 f5 21.ef6 Bf6 22.Ba5 Rf7+=) 19...a5 (19...Bb7 20.Bd2=) 20.Bd2 Ba6 21.c3 Rab8 22.Qe4 Rfc8 23.Qg4+= b5 24.ab5 Bb5 25.h4 Ba4 26.Bh6 Bf8= 27.Bg5 Bc2 28.Nd2 Qd7 29.Be4 Bd3 30.Bd3= cd3 31.c4 Nc3 32.Rfc1? Qd4 33.Qd4= Ne2 34.Kh1 Nd4–/+ 35.Ra5 Bb4 36.Ra4 Bd2 37.Bd2=+ Nb3 38.Rd1= Nd2 39.Rb1?? (better is 39.Rd2 Rb3 40.Ra7=). Cerritelli,Gianluca – Negri,Jacopo, ITA op1 Italy, 1996.

5.Nf3 Nf6 6.Bf6 Qf6 7.d4 c5 8.Nc3 cd4 9.ed4 Bb4 10.Qd2 Qh6 11.Rb1 Qd2 12.Kd2 Bd6 13.Bd3 Bd7 14.Ne5 Be5 15.de5 0–0 16.Rhd1 f6 17.ef6 Rf6 18.f3 Rh6 19.h3 Rh5 20.Rb4 b6 21.Rdb1 Nb7 22.h4 Rc8 23.g3 Nd6 24.R1b2 Be8 25.f4 Nf7 26.R2b3 Rd8 27.Ra3 Rd7 28.Rba4 d4 29.Ne2 Rc5 30.Ra7 Rd6 31.Re7 Kf8 32.Raa7 g6 33.a4 Rc8? 34.Reb7 e5 35.Ra6 e4 36.Be4 Re6 37.Bd3 Re3 38.Rbb6 Kg7 39.Bg6 hg6 40.Rg6 Kh8 41.Nd4 Re4 42.c3 Rd8 43.Rge6 Red4 44.cd4 Rd4 45.Ke3 Rd8 46.f5 Kg7 47.g4 Rc8 48.f6 Kf8 49.g5 Rc3 50.Kd2 Rc8 51.g6 Nh6 52.h5 Bd7 53.Re7 Bh3 54.a5 Bf5 55.Rd6 Bg6 56.hg6 Ng4 57.Rh7 Nf6 58.Rf6 Kg8 59.Rd7 Rb8 60.b6 Ra8 61.b7 Rd8 62.Rd8 Kg7 63.b8Q Kf6 64.Qf4 Kg6 65.Rg8 Kh7 66.Qf7 Kh6 67.Qg6# 1–0. Bestia02c – Holmes02, computer chess game, 2000.

5.Nf3 Nc4

6.Bd4 a6 A) 7.Nc3 ab5 (7...Nf6 8.Bc4 dc4 9.ba6 Ra6 10.Qe2 Bd6 11.Qc4 0–0) 8.Nb5 Bd7 9.Bc4 dc4 10.Rb1 f6 11.Qe2 c5; B) 7.Bc4 dc4 8.Nc3 f6 9.0–0 ab5 10.Nb5 c6 11.Nh4 g6; C) 7.ba6 Ra6 (7...Nh6 8.a7 c5 9.Bc4 dc4 10.Be5 Ra7 11.Nc3 f6) 8.Nc3 c5 9.Bc4 dc4 10.Be5 f6 11.Bg3 e5.

6.Bd4 c5 7.bc6+/– bc6 (7...Nf6 8.cb7 (8.Bc4 dc4 9.cb7 Bb7 10.Nc3 Bd6 11.Rb1 Rb8) 8...Bb7 9.Nc3 Bd6 10.Rb1 Ba6 11.Bc4 Bc4 12.d3) 8.Nc3 (8.Bc4 dc4 A) 9.Nc3 f6 10.Ne4 (10.e4 e5 11.Be3 Bd6) 10...e5 11.Bc3 Qd5 12.Ng3; B) 9.Qe2 c5+/– 10.Be5 (10.Bc3 Nf6 11.Na3 Bd6) 10...f6 11.Bg3 Ne7 12.Qc4) 8...Bb4?? (better is 8...Na3= 9.Bd3 (9.Rc1 f6 10.Na4 Nh6 11.c4 e5) 9...f6 10.Na4 Qa5 11.c4 dc4 12.Be4; 8...f6 9.Bc4 dc4 10.e4 (10.Ne4 e5 11.Bc3 Qd5) 10...e5 11.Be3 Bd6 12.0–0) 9.Bg7+– 1–0. Anonymous – Anonymous, internet, 2011.

6.Bd4 Bd7 A) 7.Bc4 dc4 8.Nc3 a6 9.Ne5 Nf6 10.ba6 Ra6 11.Nc4 b5; B) 7.a4 Nf6 (7...a6 8.Bc4 dc4 9.Nc3 Nf6 10.Ne5 Bb4 11.Rb1 Bc3) 8.Nc3 a6 9.Bc4 dc4 10.Ne5 Bb4 11.Rb1 Bc3; C) 7.Nc3 Nf6 (7...Nd6 8.Bd3 Ne7 9.0–0 Nef5 10.Qe2 Be7 11.Ne5 0–0) 8.Bc4 dc4 9.Qe2 a6 10.Qc4 ab5 11.Nb5 c6.

6.Bd4 f6!?= 7.Bc4 (7.Nh4 Nh6 8.Bc4 dc4 9.f4 Bd6 10.0–0 0–0 11.Qe2 a6) 7...dc4 8.Qe2 (8.0–0 e5 9.Bb2 Be6 10.Nc3 Ne7 11.Qe2 Kf7 12.h4; 8.e4 a6 9.ba6 Ra6 10.Nc3 Nh6 11.Qe2 e5) 8...e5 9.Bb2 Be6 10.0–0 Kf7 (10...a6 11.ba6 Ra6) 11.Be5 (11.Nc3 Ne7) 11...fe5 12.Ne5.

6.Bd4 Nf6 7.Nc3 a6 8.ba6 (8.Bc4 dc4 9.ba6 Ra6 10.Qe2 Bd6 11.Qc4 0–0) 8...Ra6 9.Bc4 dc4 10.Qe2 Bd6 11.Qc4 0–0 12.0–0.

6.Bd4 Nf6 7.Nc3 Bb4 A) 8.Bc4 dc4 (8...Bc3 9.dc3 dc4 10.Qe2 a6 11.Qc4 0–0) 9.0–0 (9.Qe2 Bc3 10.dc3 a6 11.ba6 b6) 9...a6 10.ba6 (10.Qb1 Qe7 11.Bf6 gf6) 10...b6 11.a7 Ra7 12.Qe2; B) 8.Rb1 Bc3 9.Bc3 Nd6 10.Bd3 (10.Bd4 0–0 11.Be2 Nf5) 10...0–0 11.0–0 (11.Bb4 Nfe4) 11...Nfe4 12.Bb4.

6.Bd4 Nf6 7.Bc4 dc4 8.Nc3 a6 9.ba6 Ra6 10.Qe2 Bd6 11.Qc4 0–0 12.0–0.

6.Bd4 Nf6 7.Bc4 dc4 8.Qe2 a6 9.ba6 b5 10.Nc3 Ba6 11.a3 Bd6.

6.Bd4 Nf6 7.Bc4 dc4 8.Qe2 a6 9.ba6 c5 10.Bf6 Qf6 11.Nc3 (11.ab7 Bb7) 11...b5 12.Rb1.

6.Bd4 Nf6 7.Bc4 c5 8.Bf6 Qf6 9.Na3 Qb2 10.Qc1 Qc1 11.Rc1 dc4.

6.Bd4 Nf6 7.a4 a6 8.Bc4 dc4 9.Nc3 Bb4 10.Qb1 Qe7 11.Ne5 0–0.

6.Bd4 Nf6 7.a4 e5 8.Ne5 Ne5 9.Be5 Bd6 10.Bd4 c5 11.bc6 bc6.

6.Bd4 Nf6 7.Nc3 a6 8.ba6 Ra6 9.Bc4 dc4 10.Qe2 Bd6 11.Qc4 0–0.

6.Bd4 Nf6 7.Nc3 Bb4 8.Rb1 Bc3 9.Bc3 Nd6 10.Bd3 0–0 11.0–0 Nfe4.

6.Bd4 Nh6 A) 7.Bc4 dc4 (7...c5 8.bc6 dc4 9.Nc3 bc6 10.Qe2 Ba6 11.0–0 c5) 8.Qe2 a6 9.Qc4 ab5 10.Qb5 Bd7 11.Qb7 Rb8; B) 7.h3 Nf5 (7...a6 8.Nc3 Nf5 9.Bc4 dc4 10.Qb1 Be7 11.ba6 ba6) 8.Nc3 Nb2 9.Qb1 Nd4 10.Nd4 Ba3 11.Be2 0–0; C) 7.Nc3 a6 (7...f6 8.Bc4 dc4 9.e4 e5 10.Be3 Ng4 11.0–0 Be6) 8.Bc4 dc4 9.Qb1 Nf5 10.ba6 ba6 11.0–0 f6.

6.Bc4+/– dc4

7.0–0 Qd5 8.a4 f6 (8...Nf6 9.Qe2+=) 9.Nc3+/– Qh5 10.Qe2 e5 11.Qc4 Bd6 (11...Bg4 12.Ne1 Bd6 13.Ba3+/–) 12.Ne4 (12.Nd5 Qf7+/–) 12...Ne7 (12...Bg4 13.Ng3 Qg6 14.Nh4+/–) 13.Nd6 (13.d4 ed4 14.Nd6 cd6 15.Nd4 Qg5+–) 13...cd6+/– 14.Ba3 Qf7 15.Qf7 Kf7 16.Bd6 Bf5 (16...Bg4 17.a5+/–) 17.Be7 Ke7 18.c3 (18.d4!? Rhc8 19.de5 fe5 20.Ne5 Rc2+–) 18...Bd3+/– 19.Rfc1 Rhd8 20.h3 Be4 (20...Rd7 21.c4+/–) 21.d4+– Bf3 22.gf3 Rac8 23.Kg2 Rc4 24.Kg3 Rdc8 25.Ra3 Kf7 (25...ed4 26.ed4 Kd6 27.a5+=) 26.f4 (26.Rd1 Ke6+–) 26...e4? (better is 26...ed4 27.ed4 Rd4 28.cd4 Rc1+=) 27.f3 Re8 28.fe4 Re4 29.Kf3 f5 30.a5 a6 (30...g6 31.Rb3+–) 31.ba6 ba6 32.Rb1 Rc6 33.Rb6 Ree6 34.Rab3 Rh6 35.Rc6 Rc6 36.d5 (36.Rb7 Kf8+–) 36...Rh6 (36...Rc5 37.Rb7 Ke8 38.Rg7 Rd5 39.Rh7 Ra5 40.Ke2+–) 37.Kg3 Rg6 38.Kh2 Ke7 (38...Rd6 39.Rb7 Kf8 40.c4+–) 39.Rb6 (better is 39.c4 Rd6 40.Rb7 Kf8 41.Rb6+–) 39...Kd7 (39...Rb6 40.ab6 Kd8+–) 40.Rg6 hg6 41.Kg3 Kd6 42.c4 Kd7 43.c5 Kc7 (43...Ke7 44.Kh4 Kf6+–) 44.Kh4 Kd7 45.Kg5 Ke7 46.Kg6 Kf8 47.Kf5 1–0. Hal1958 – Ed, playchess.de, 2002.

7.Na3 Qd5 (7...Bd7 8.Rb1 a6 9.ba6 b5 10.Ne5 Ra6 11.Nb5 Bb5) 8.Qe2 Nf6 9.Nc4 Bd7 10.a4 a6 11.0–0 Bd6.

7.Na3 Bd7 8.Qe2 (8.Rb1 a6 9.ba6 b5 10.Ne5 Ra6 11.Nb5 Bb5 12.Qh5; 8.0–0 Nf6 9.Rb1 c3 10.dc3 a6 11.c4 Ba3 12.Ba3) 8...Nf6 9.Qc4 Be7 (9...a6 10.Qb3 Ba3 11.Ba3 ab5 12.0–0) 10.0–0 (10.Ne5 0–0 11.0–0 a6 12.Rfd1) 10...0–0 11.Ne5 a6 12.Rfd1.

7.Nc3 a6 8.0–0 Nf6 9.Qe2 ab5 10.Nb5 c6 11.Bf6 gf6 12.Nc3.

7.Nc3 a6 8.a4 Nf6 9.Qe2 ab5 10.ab5 Ra1 11.Ba1 Bd6 12.Qc4.

7.Nc3 a6 8.Qe2 ab5 9.Nb5 c6 10.Nc3 Qb6 11.Rb1 Qc5.

7.Nc3 Bd7 8.Qe2 a6 9.Qc4 Nf6 10.0–0 Bd6 11.e4 ab5 12.Nb5.

7.Nc3 Nf6 8.Qe2 a6 9.a4+/– ab5 10.ab5 Ra1 11.Ba1 Bd6.

7.Nc3 Nf6 8.Qe2 a6 9.Qc4 ab5 10.Nb5 c6 11.Bf6 Qf6.

7.Nc3 Nf6 8.Qe2 Bd6 9.0–0 0–0 10.Qc4 a6 11.a4 Bd7.

7.Nc3 Nf6 8.Qe2 Bd6 9.Qc4 0–0 10.0–0 Bd7 11.e4 e5 12.d4.

7.Nc3 Nf6 8.Qe2 Bd7 9.0–0 Bb4 (9...a6 10.a4+/– Bd6 11.e4 e5) 10.Qc4+– Bc3 (10...Be7 11.e4 (11.a4 0–0) 11...c6 12.a4+/–) 11.Bc3 (11.Qc3?! Bb5+/– (11...a6+/–); worse is 11.dc3 c6+/–) 11...Ne4?? (better is 11...0–0+–; 11...a6+–) 12.Qe4 (12.Qe4 Bb5 13.Qg4+–) 1–0. tony – martinsen, internet, 2011.

7.Qe2 a6 8.a4 Nf6 9.Qc4 Bd6 10.Nc3 0–0 11.0–0 Bd7.

7.Qe2 a6 8.a4 Nf6 9.Qc4 Bd6 10.Nc3 Bd7 11.0–0 0–0 12.h3.

7.Qe2 Nf6 8.Qc4 Qd5 9.Qd5 ed5 10.Bf6 gf6 11.Nc3 Be6.

4.e3 Bf5

5.Bc3 Nc4 6.Bc4 dc4 7.Nf3 (7.Qf3 Qc8=) 7...Qd7 (7...Qd5 8.Be5=) 8.a4 (8.Na3 Nf6=) 8...e6 (8...Nf6 9.Na3=) 9.0–0 Bd6?? (Better is 9...a6 10.Ne5 Qd5=) 10.Bg7+– Nf6 11.Bh8 Ne4 12.Be5 Bc5 13.Nc3 Nd6 14.Bd6 Bd6 15.e4 Bg4 16.h3 Bh5 17.g4 Bg6 18.d3 c6 19.dc4 cb5 20.Nb5 Bf4 21.Qd7 Kd7 22.Rad1 Kc6 23.Rfe1 a6 24.Nbd4 Kc7 25.Nh4 Be5 26.Ng6 hg6 27.Nf3 Bc3 28.Re3 Bb4 29.Red3 Bc5 30.Ne5 Rf8 31.Rd7 Kb6 32.Rf7 Rc8 33.Ng6 Rg8 34.Ne5 Rc8 35.Rdd7 Ka5 36.Rb7 Bb6 37.Nd7 Rd8 38.c5 Bc5 39.Nc5 Rd1 40.Kg2 Rb1 41.Rb1 e5 42.Re7 (42.Nd3 Ka4 43.Rfb7 a5 44.Ra1#) +–. bby – loka, Live Game Caissa's Web, 2004.

5.d3 a6 6.ba6 Ra6 7.Nd2 =.

5.d3 b6 6.Be2 (6.Qf3 e6=) 6...c6 (6...a6 7.a4=) 7.bc6 (7.a4 Bd7=) 7...Nc6 8.d4 (8.Nf3 Qd6=) 8...Nf6 (8...e6 9.Nf3+=) 9.Bb5 (9.Nf3 Rc8 10.Nh4 Bd7=) 9...Qd6 (9...Qc8 10.c4+=) 10.c3 (10.Ba3 Qe6=) 10...a6+= 11.Qa4 Bd7 12.Nf3 g6 (12...Qc7 13.0–0+=) 13.0–0 Bh6 (13...Bg7 14.Rc1+=) 14.Ba3 (14.Ba6? Nb8 15.Qb4 Qb4 16.cb4 Na6–+) 14...Qc7 (14...Qe6 15.c4=) 15.Nbd2 (15.Be2 0–0+=) 15...0–0 16.Bc6 (16.Be2 Rfc8+=) 16...Bc6+= 17.Qb4 Rfe8 18.Rab1 (18.Ne5 b5+=) 18...b5 19.Ne5 Bf8 (19...Bg7 20.Qb3+=) 20.Nc6 (20.Qb3 Bg7+=) 20...e6 (20...Qc6 21.Qb2+=) 21.Qb3= Qc6 22.Bf8 Kf8 (22...Rf8 23.Rfc1=) 23.Qa3 (23.a4 Reb8=) 23...Kg7 24.Qa5 (24.Rb3 Rec8=) 24...Rec8+= Exerts pressure on the backward pawn 25.Rfc1 Qd6 26.Nb3 (26.Rb4 Ng4 27.g3 e5=) 26...Rc4 (26...Ne4 27.f3 Rc4 28.fe4=) 27.Nc5 Ne4 (27...Nd7!? 28.Nd7 Ra4+=) 28.Ne4+= de4 Black threatens Ra4 29.Rb5 ab5 A pinning theme 30.Qa8 b4 (30...Qd5 31.Qd5 ed5 32.Rb1+=) 31.Qe4 Rc3 Do you see the mate threat? 32.Rd1 (32.Rb1 Qc7 33.f4 Ra3 34.Qe5 Qe5 35.fe5 Ra2 36.Rb4 g5+/–) 32...Ra3 (32...Qc7 33.d5 Qd6 34.Qd4 e5 35.Qd2+=) 33.Qb1+/– Qb6 (33...Ra5 34.Rc1+/–) 34.Qb2 Kg8 (34...f6 35.d5+/–) 35.g3 (35.Rb1 Qa5 36.Qb4 Qb4 37.Rb4 Ra2+/–) 35...Qa5+= 36.e4 (better is 36.Rb1!?+=) 36...Ra2+= 37.Qb3 White plans d5 (37.Qb1 Qa3 38.Kg2 Re2=) 37...Qa3 38.Rb1 Exerts pressure on the isolated pawn (38.Qa3 ba3 39.d5 ed5 40.ed5 Kf8+=) 38...Ra1–/+ 39.Qd1?? (better is 39.Kg2 Rb1 40.Qb1–/+) 39...Rb1–+ 40.Qb1 b3 41.d5 b2 42.d6 (42.de6 Qa1 43.ef7 Kf7 44.Qa1 ba1Q (44...ba1N?! 45.f4–/+; 44...ba1B?! 45.f4–/+) 45.Kg2 Qe1–+) 42...Qa1 (42...Qd6?! 43.Qb2 e5 44.h3=) 43.Qa1 ba1Q (43...ba1N?? 44.d7+–) 44.Kg2 Qe5 (44...Qd1 45.d7–+) 45.d7 (45.f3 Qd6 46.g4 Qd2 47.Kg3 Qe1 48.Kg2 f5 49.ef5 ef5 50.gf5 gf5–+) 45...Qe4 (45...Qe4 46.Kg1 Qd4–+) 0–1. tschulz – reisinger, mySchach.de, 2005.

5.d3 c6 6.g4 (6.a4 Nf6=) 6...Bd7+= 7.Bg2 e6 8.bc6 Nc6 9.Nf3 (9.Nd2 Rc8 10.a3 Nh6=) 9...f6 (9...Qb6 10.Bc3+=) 10.Nfd2 (10.Nbd2 Rc8+=) 10...Bd6 (10...Rc8 11.0–0+=) 11.g5 (11.c4 Qb6 12.Bc3 Ne5 13.Be5 Be5=) 11...Be5 (11...Rc8 12.c4 Nb4 13.Qb3=) 12.Be5= Ne5 (12...fe5 13.Qh5 g6 14.Qg4=) 13.f4 (13.d4 Ng6=) 13...Nf7 (13...Ng6 14.h4=) 14.h4 Qc7 (14...Ne7 15.c4=) 15.0–0 (15.c4 dc4 16.Nc4 Rc8=) 15...0–0–0 (15...Ne7 16.c4+=) 16.a4 (16.c4 Ne7 17.Qb3 Bc6=) 16...g6 (16...Ne7!?+=) 17.c4= Bc6 18.Qb3 (18.cd5 Bd5 19.Bd5 ed5+=) 18...h6 (18...d4 19.c5 Bg2 20.Kg2=) 19.Na3 (19.cd5!? ed5 20.gf6 Nf6 21.Nc3=) 19...hg5+= 20.Nb5 (20.hg5 d4 21.ed4 Rd4 22.Nb5 Bb5 23.cb5=) 20...Qb8 (better is 20...Qa5 21.Qc2 gh4–+) 21.cd5= ed5 (worse is 21...Bd5 22.Rac1 Kd7 23.Bd5 ed5 24.Qd5 Ke8 25.Qe4 Kf8 26.Rc7 gh4 27.Rfc1+/–) 22.Rac1 Ne7 (better is 22...gf4!? 23.Rf4 Ne7 24.Rf6 Nh6+=) 23.e4+/– Rh4 24.ed5 Nd5 25.Bd5 Rg4 26.Kf2 Qf4 27.Ke1 Qe3 28.Kd1 Ne5 29.Be6 Kb8+/– 30.Bg4 Ng4 31.Rc6 Qd3?? 32.Qd3+– Rd3 33.Rcf6 (33.Rcf6 Nf6 34.Rf6+–; 33.Re6 Rd8 34.Ke2 a6+–) 1–0. Martois,Karl Erik – Sillanpaa,Yrjo, corr FIN–ch I, 1972.

5.Qf3 Bc2 6.d3 c6 7.Nc3 =.

5.Qf3 e6 6.Bd3 (6.d3 Nf6=+) 6...Bd3 7.cd3 Qd7 (7...c6 8.a4=+) 8.a4 (8.Qg4 Qb5 9.Bg7 Nh6=+) 8...Nb3 (8...a6 9.Qg3 f6 10.Nc3–/+) 9.Ra2 (9.Ra3 Nc5=+) 9...c6 (9...a6 10.ba6 Ra6 11.Nc3–/+) 10.Ne2 (10.bc6 Qc6 11.Qd1 Nc5–/+) 10...cb5–/+ 11.a5 f6 (11...Rc8 12.0–0–/+) 12.0–0 Bd6 13.g3 Qc7 14.Ba3 Ne7 15.Nd4?? 0–0–0?? 16.Nb5+– Qa5 17.Rc2 Kb8 18.Nd6 Nc6 19.Nf7 Ne5 20.Ne5 fe5 21.Qh5 d4 22.Qe5 Qe5–+ 23.e4 g5 24.f3 h5 25.Be7 Rdg8 26.Na3 g4 27.Nb5 h4 28.Bd6–/+ Qd6 29.Nd6 hg3 30.hg3 Rg7 31.f4 Rgh7–/+ 32.Kf2 (32...Rc7 33.Rc7 Kc7 34.Nf7 Rh2 35.Kg1 Rd2 36.Ne5–/+). manofsteel5 – Tolosa32, Live Game Caissa's Web, 2005.

5.Nf3 f6 6.d4 (6.Nd4 Nh6+=) 6...c6 (6...e6 7.Be2=) 7.Nh4+= Nc4?? (better is 7...Nh6+=) 8.Bc4+– (8.Nf5?! Nb2 9.Qc1 Qa5 10.Nd2 Na4 11.bc6 bc6+=) 8...dc4 9.Nf5 cb5 10.0–0 (10.d5 g6 11.Ng3 b4+–) 10...e6 11.Ng3 Bd6 (11...Qd7 12.Nd2+–) 12.Qh5 g6 (12...Ke7 13.Qb5 Qb6 14.Qb6 ab6 15.Ne4+–) 13.Qb5 Qd7 14.Qd7 (better is 14.Ne4!? Bh2 (14...Qb5?? 15.Nd6 Kd7 16.Nb5+–) 15.Kh2 Qb5 16.Nd6 Kd7 17.Nb5 a6+–) 14...Kd7 15.Ba3 (15.Ne4 Rd8+–) 15...Rc8 (15...Bg3 16.fg3 f5 17.Nd2+–) 16.Bd6 Kd6 17.Nc3 a6 18.Rfb1 Rb8 19.Rb6 Ke7 20.Rab1 e5 21.Rb7 Rb7 22.Rb7 Kf8 23.Nge4 h5 24.Nd5 Nh6 25.Nc5 Nf7 26.Ne6 Ke8 27.Nf6# 1–0. Woschkat,Karl_Heinz – Strong,William, Telecomm, 1995.

5.Nf3 Nf6 6.Be2 Nc4 7.Bc4 dc4 8.Na3 Qd5 9.Qe2 Be4 10.Nc4 Bc2 11.Nce5 (11.d4 Be4=) 11...Ba4+= 12.0–0 Bb5 13.d3 0–0–0 14.Rfc1 (better is 14.Bd4=) 14...Bd3–/+ 15.Qe1 Bg6 (15...Be4 16.Qc3 c6 17.a3–/+) 16.Rd1 (16.Ng5 Ne4 17.Ne4 Be4 18.f3–/+) 16...Qe6 17.Rd8 Kd8 18.Ng5 Qb6 19.Bd4 c5 20.Ng6 (worse is 20.Nef7 Bf7 21.Bc5 Qc5 22.Nf7 Ke8 23.Nh8 Qf5+–; worse is 20.Ngf7 Bf7 21.Nf7 Ke8 22.Bc5 Qc5 23.Nh8 Ne4+–) 20...Ke8?? (better is 20...fg6 21.Rb1 Qc6 22.Nf7 Ke8 23.Nh8 cd4 24.ed4 e6+–) 21.Nh8 cd4 22.Qc1 e5 23.Qc8 Ke7 24.Nhf7 de3 25.fe3 h6 26.Qd8 Qd8 27.Nd8 hg5 28.Nb7+– g4 29.Na5 Ke6 30.Nb3 Bd6 31.Rc1 Kd5 32.Nd2 Bc5 33.Kf2 Bb4 34.Ke2 g6 35.e4 Kd6 36.Nc4 Ke6 37.Kd3 Nd7 38.Rc2 Be7 39.Nd2 Nc5 40.Kc4 Kd6 41.Rc3 Bg5+/– 42.Rc2 Be7+– 43.Kb5 a6 44.Kb6 Bd8 45.Ka7 Kc6 46.Nb3 Bb6 47.Ka8 Kb5 48.Nc5 Bc5 49.Kb7 Bd4 50.Kc7 Kb4 51.Kd7 a5 52.Kc7 (52.Kc7 a4 53.Kd6+–; 52.Ke6 g3 53.h3 a4+–) 1–0. Plock,Joerg – Hentschke,B, corr, 1990.

5.Nf3 Nf6 6.Be2 Qd7 7.Ne5 Qd6 8.0–0 e6 9.d4 Be7 (9...Qb4 10.Ba3 Qa4 11.Bf8 Rf8 12.Bd3+=) 10.c4 (10.Ba3 Qd8 11.Be7 Qe7 12.c3+=) 10...dc4 (better is 10...Nc4!? 11.Nc4 dc4=) 11.Bc3+/– (11.Nc4?! Nc4 12.Bc4 c5=; 11.Bc4?! Nc4 12.Nc4 Qd7=) 11...b6 12.Ba5 ba5 13.Nc4 (13.Bc4?! 0–0+=) 13...Qd5 14.Nc3 Qd7 15.Ne5 (15.Na5?! Bb4 16.Bf3 0–0 (16...Bc3? 17.Ba8 0–0 18.Bc6+–; 16...Ba5? 17.Ba8 0–0 18.Bc6+–) 17.Ba8 Ra8=) 15...Qd8 (15...Qd6+–) 16.Bf3 Nd5 17.Qb3 f6 (17...Nc3 18.Qc3 Rc8 19.Bc6 Kf8 20.e4+–) 18.Nd5 (better is 18.Nc6 Qd6 19.e4 Nc3 20.ef5 Nd5 21.Bd5 a4+–) 18...ed5 19.Nc6 Qd6 (19...a4 20.Qd5 Qd5 21.Bd5+–) 20.Bd5 Rc8 (20...a4 21.Qc4 Bd3 22.Qd3 Qd5 23.Ne7 Ke7 24.Rfc1+–) 21.Bf7 (21.Na7 Rd8 22.e4 Bg6+–) 21...Kf8 22.Rac1 Bd7 (22...a4 23.Qc4+–) 23.Na7 (< 23.Ne7 Ke7 24.Bc4 c6 25.bc6 Bc6+–) 23...Rd8 (23...Ra8 24.Nc6+–) 24.Nc6 (better is 24.a4 Rb8 25.Qa2 g6+–) 24...Bc6 (24...a4 25.Qc4 Bc6 26.bc6 g6+–) 25.Rc6 (25.bc6?! Qb4+–) 25...Qd7 (25...Qb4 26.Rc7 Qd6 27.Rfc1+–) 26.Be6 (26.Be6 Qe8 27.Rc7+–) 1–0. Wall,Bill – Vegas, internet, 2003.

5.Nf3 Nf6 6.Ne5 =.

5.Nf3 e6

6.Bc3 Nc4 7.Be2 Qd7 8.a4 Nf6 9.0–0 =.

6.Nd4 Bg6 7.Be2 Nc4 8.Bc4 dc4 9.0–0 =.

6.Be2 Nc4 7.Bd4 Nf6 8.0–0 Bd6 9.d3 =.

6.Be2 Nf6 7.Nh4 (7.0–0 Bd6 8.Nd4 Bg6 9.f4=) 7...Be4 (7...Bg6 8.Bc3 Ne4 9.Ng6+=) 8.d3 Bg6 9.Ng6 (9.Bc3=) 9...hg6 10.Qd2 b6 11.c4 c6 12.Qc3 Nb7 (better is 12...cb5!? 13.cb5 Qd7+=) 13.bc6+= Nc5 14.Qc2 Qc7 (14...Rc8 15.d4 Nce4 16.Qa4+=) 15.cd5 (15.Bf6!? gf6 16.cd5 ed5 17.Nc3 Qc6 18.Bf3+/–) 15...Nd5+= 16.d4 Nb4 17.Qd1 Ne4 18.Nd2 Nd2 19.Qd2 Rh2 20.Rh2 Qh2 21.Bf3 Rc8 22.g3 Nc6 23.a3 e5 (better is 23...Na5 24.Rc1 Rc1 25.Qc1 Qg1 26.Ke2 Qc1 27.Bc1 Kd7+=) 24.Rc1+/– Ne7?? (better is 24...e4 25.Be4 Ne7+/–) 25.Rc8+– Nc8 26.Bc6 Ke7 (26...Kd8 27.de5 Nd6 28.ed6 Qg1 29.Ke2 Qb1+–) 27.de5 Ke6 (27...Qh3 28.a4 Qe6 29.Ba3 Nd6 30.Bd6 Kd8 31.Bf8 Kc7+–) 28.Qd7 1–0. Bonetti,Shane – Chessdaddy, ICC, 2002.

6.Be2 Qd7

7.0–0 Nf6 A) 8.a4 Bd6 (8...c5 9.Ne5 Qc7 10.f4 Bd6 11.d3 0–0 12.Nd2 a6 13.Bc3 ab5; 8...Bb4 9.Ne5 Qd6 10.f4 Nd7 11.g4 Be4 12.d3 Bg6 13.c3 Bc5; 8...Nc4 9.Bc4 dc4 10.Ne5 Qd5 11.Bd4 Bb4 12.Nc3 Bc3 13.dc3 Nd7; 8...Bc5 9.Bc3 b6 10.Ne5 Qe7 11.Ba5 ba5 12.Nc3 0–0 13.Nc6 Qd6; 8...Qd8 9.Nd4 Bd6 10.Nf5 ef5 11.Bd4 0–0 12.Nc3 Ne4 13.Nd5 Bh2; 8...c6 9.Nd4 Bb4 10.Nf5 ef5 11.Bd3 Qe6 12.Qf3 Ne4 13.Bg7 Rg8) 9.Ne5 Qe7 10.g4 Bg6 11.f4 0–0 12.d3 Nd7 13.Ng6 hg6; B) 8.Nd4 Bg6 9.d3 a6 10.a4 c5 11.Nf3 Bd6 12.Ne5 Qc7 13.f4 0–0; C) 8.Ne5 Qd8 (8...Qd6 9.f4 Nd7 10.a4 Be7 11.g4 Bg6 12.Ng6 hg6 13.Bg7 Rh7) 9.Bd3 Bd6 10.f4 Bd3 11.cd3 c5 12.Nc3 0–0 13.Qc2 Rc8.

7.Na3 Nf6 8.Ne5 Qd6 (8...Qd8 9.0–0 Bd6 10.c4 0–0 11.Qa4 Nc4 12.Nac4 dc4 13.Nc4 a6) 9.0–0 Be7 10.d3 Qb4 11.Rb1 Qa4 12.c4 Qd1 13.Rfd1 h5.

7.Bd4 c5 8.bc6 Nc6 9.Nc3 Nf6 10.Ne5 Ne5 11.Be5 a6 12.g4 Bg6 13.Rb1 h6.

7.Bd4 Qd6 A) 8.Nc3 Nf6 (8...f6 9.Nh4 Ne7 10.Na4 Nc4 11.d3 Qa3 12.Nc5 e5 13.dc4 ed4; 8...Bg6 9.Be5 Qd8 10.0–0 Nf6 11.Bd4 Bd6 12.Ne5 0–0 13.f4 c5) 9.h3 h6 10.Be5 Qc5 11.0–0 Bd6 12.Bd4 Qa3 13.Bd3 Bd3; B) 8.h3 Ne7 (8...f6 9.Bc3 Qb6 10.0–0 Ne7 11.Nh4 Kf7 12.Bd4 Qd6 13.d3 a6; 8...Nf6 9.Nc3 h6 10.Be5 Qc5 11.0–0 Bd6 12.Bd4 Qa3 13.Bd3 Bd3; 8...h6 9.Be5 Qc5 10.Nc3 Nf6 11.0–0 Bd6 12.Bd4 Qa3 13.Bd3 Bd3; 8...Be4 9.0–0 Nf6 10.d3 Bf3 11.Bf3 a6 12.a4 Be7 13.Qd2 b6; 8...Nh6 9.0–0 f6 10.d3 e5 11.Bc3 b6 12.d4 e4 13.Nfd2 Kf7) 9.Nc3 f6 10.Na4 e5 11.Bc5 Qd7 12.Nh4 b6 13.Be7 Be7; C) 8.d3 a6 9.Nc3 Nf6 10.0–0 Be7 11.ba6 ba6 12.Be5 Qd7 13.e4 de4; D) 8.Be5 Qc5 (8...Qd7 9.Nd4 f6 10.Bg3 Nh6 11.Nc3 Bb4 12.Qb1 Bc5 13.Na4 Ba3; 8...Qd8 9.Nd4 Nf6 10.Nf5 ef5 11.Nc3 Be7 12.Bd3 0–0 13.Qf3 g6) 9.Nc3 Nf6 10.Bd4 Qa3 11.0–0 Bd6 12.Bd3 Bg6 13.h3 0–0.

7.Bd4 Ne7 A) 8.Nh4 Rc8 (8...Bg6 9.Nc3 Nf5 10.Nf5 Bf5 11.g4 Bg6 12.h4 c5 13.bc6 Nc6; 8...0–0–0 9.Nc3 Nc4 10.0–0 Kb8 11.d3 Nd6 12.g4 Bg6 13.a4 f5; 8...c5 9.Bc5 Rc8 10.Nf5 Rc5 11.Nd4 Nf5 12.Nb3 Nb3 13.ab3 b6; 8...f6 9.Bh5 Bg6 10.0–0 e5 11.Bc3 Qb5 12.a4 Qb6 13.Na3 Nac6; 8...a6 9.g4 Be4 10.f3 Bg6 11.a4 Nc4 12.Bc4 dc4 13.Nc3 Nd5; 8...Nc4 9.Nc3 a6 10.g4 Bg6 11.d3 Na3 12.Na4 Qb5 13.Nc3 Qb4; 8...Qd6 9.f4 Rg8 10.Nc3 g5 11.Be5 Qc5 12.fg5 Bg7 13.Bg7 Rg7; 8...c6 9.Nc3 Nc4 10.Bc4 dc4 11.a4 a6 12.ba6 Ra6 13.0–0 Ra5) 9.Nc3 c5 10.bc6 Nac6 11.Bb5 a6 12.Bc6 bc6 13.Bc5 Rb8; B) 8.0–0 Ng6 (8...f6 9.a4 Ng6 10.Bc3 Nc4 11.Nd4 Bc5 12.g4 Be4 13.d3 e5) 9.Re1 f6 10.Bc3 Nc4 11.d3 Nb6 12.Nd4 Ne5 13.a4 Bg6; C) 8.Ne5 Qd6 (8...Qd8 9.g4 Be4 10.f3 f6 11.fe4 fe5 12.Bc3 Nc4 13.Bc4 dc4) 9.f4 c5 10.Bc3 f6 11.0–0 fe5 12.Ba5 ef4 13.ef4 Kf7; D) 8.Nc3 f6 9.Nh4 e5 10.Bc5 Be6 11.Bb4 Nc4 12.0–0 Ng6 13.Bf8 Kf8.

7.Bd4 f6 8.Nh4 Ne7 9.g4 Be4 10.f3 Bg6 11.Nc3 e5 12.Bc5 Bf7 13.0–0 g5.

7.Bd4 Nf6 8.Ne5 Qd6 9.Nc3 Be7 10.g4 Bg6 11.h4 h6 12.Rb1 Be4 13.Rg1 c5.

7.Ne5+= Qd6 8.g4 (8.f4 f6 9.Nf3 (9.Ba3 Qd8 10.Bf8 Kf8 11.Nf3 Ne7 12.Nc3 Kf7 13.0–0 c5) 9...Nh6+= 10.0–0 Kf7 11.Bd4 Be7 12.Nc3 Rhf8 13.Rb1 Kg8; 8.Bd4 f6 9.Nd3 e5 10.Bc5 Qe6 11.Bf8 Kf8 12.Nc3 Ne7 13.0–0 Kf7; 8.0–0 Nf6 (8...Ne7 9.Nf3 Nc4 10.Bc4 dc4 11.Na3 Qb4 12.Rb1 Ng6 13.Qe2 c3; 8...f6 9.Nd3 Nc4 10.Bd4 e5 11.Bc5 Qe6 12.Nc3 Bd3 13.cd3 Nb2; 8...Be7 9.f4 Qb4 10.Bd4 Nf6 11.g4 Be4 12.d3 Bg6 13.f5 ef5) 9.f4 Qb4 10.Bd4 Bc5 11.a3 Qd4 12.Nc3 Qc3 13.dc3 Be3) 8...Be4 (8...Bg6 9.Bd4 f6 10.Ng6 hg6 11.Bc3 Qb6 12.Bd3 g5 13.Qe2 0–0–0) 9.f3 Bg6 10.Bc3 b6 11.0–0 (11.Bd4 f6 12.Ng6 hg6 13.f4 e5) 11...0–0–0 (11...Nf6 12.f4 Nd7 13.Bb2 Ne5) 12.f4 f5? (better is 12...f6 13.Ng6 hg6+=) 13.Ba5+– ba5 14.gf5 Bf5 15.Nf7 Qe7 16.Nh8 Qc5?? (16...Qf6 17.d4 Nh6+–) 17.Nf7 (17.Nf7 Re8 18.c3+–) 1–0. Anonymous – Anonymous, internet, 2011.

7.Ne5+= Qd8 A) 8.0–0 Nf6 (8...f6 9.Nf3 Bc5 10.Nc3 Ne7 11.Na4 Bd6 12.Nd4 Kf7 13.f4 Bg6) 9.Bd4 Bd6 10.Nc3 0–0 11.f4 c6 12.bc6 bc6 13.Na4 Rb8; B) 8.Bc3 f6 9.g4 Be4 10.Nf3 c6 11.0–0 Bf3 12.Bf3 Bd6 13.Qe2 Ne7; C) 8.d3 a6 (8...Bd6 9.g4 Bg6 10.Qd2 b6 11.Ng6 hg6 12.Bg7 Rh7 13.Bb2 Qg5; 8...Nf6 9.Qd2 c5 10.g4 Bg6 11.Na3 Bd6 12.g5 Nh5 13.f4 0–0) 9.a4 Nf6 10.Qd2 c5 11.Bc3 ab5 12.ab5 b6 13.Ba5 Ra5; D) 8.Nc3 d4 (8...Bd6 9.g4 Be5 10.gf5 ef5 11.d4 Bf6 12.Qd2 Ne7 13.0–0–0 c6; 8...Nf6 9.g4 Bd6 10.gf5 Be5 11.Rg1 0–0 12.f4 Bd6 13.Bd3 d4) 9.Na4 de3 10.de3 Qd1 11.Bd1 Bb4 12.Bc3 Bc3 13.Nc3 f6; E) 8.Bh5 Nh6 (8...g6 9.Bf3 f6 10.g4 Be4 11.g5 Bb4 12.Ng4 Nc4 13.Bf6 Nf6) 9.Bc3 g6 10.Bf3 Bg7 11.0–0 0–0 12.d4 c5 13.g4 Be4; F) 8.g4 Be4 9.0–0 f6 10.d3 Bd6 11.de4 Be5 12.Be5 fe5 13.Qd2 c6.

4.Nf3 Nc4

5.Qc1 Bd7 6.e3 =+.

5.Qc1 e6 6.Bd4 Nd6 (6...f6 7.e3+=) 7.Nc3 (7.e3 f6=) 7...b6 (7...Nf5 8.Be5+=) 8.g3 (8.Be5 a6=) 8...h6 (8...f6!?+=) 9.Bg2= Nf6 (9...a6 10.a4=) 10.0–0 Nc4 (10...a6 11.a4=) 11.a4 (11.d3 Nd6+=) 11...Bd6 (11...a6 12.d3 Nd6 13.Qf4+=) 12.d3 Na5 13.e4 e5? (better is 13...Be7!?+/–) 14.Ne5+– Be5 (14...c5 15.bc6 de4 16.Ne4 (16.Be4?! Ne4 17.Ne4 f6+/–) 16...Ne4 17.Be4+–) 15.Be5 d4 (15...Ng4 16.Bg7 Rh7 17.f3 Rg7 18.fg4 de4 19.Ne4 Qd4 20.Kh1+–) 16.Nd5 Nd5 17.ed5 0–0 (17...f6 18.Bd4 0–0 19.Qf4+–) 18.Bd4 (18.Qf4 Bb7+–) 18...Bb7 (18...a6 19.Re1+–) 19.Qb2 (19.Qf4 f6 20.Qf5 Re8+–) 19...Qg5 (19...f6 20.c4+–) 20.f4 Qf5 (20...Qg6 21.f5 Qg5 22.Rae1+–) 21.Bg7 Rfe8 22.Rae1 Bd5 (22...Qg6 23.Be5+–) 23.Bh6 (23.Bd5!? Qd5 24.Bh6 f6 25.Qf6 Qf7 26.Qg5 Kh7+–) 23...Bg2 (23...Qh7 24.Bd5 c6 25.bc6 Qh6+–) 24.Qg7 1–0. marre – bajkmf, internet, 2010.

5.Qc1 Nf6 6.Bf6 ef6 7.d3 (7.e3 Ne5=+) 7...Nb6 (7...Nd6 8.Nc3=+) 8.a4 (8.e3 Bb4 9.c3 Bd6=+) 8...Bd6 (8...a6 9.Nbd2–/+) 9.Nbd2 (9.a5 Nd7=) 9...0–0 (9...a6 10.a5 Nd7 11.ba6 Ra6 12.d4=+) 10.g3 (10.e3 a5=+) 10...c6 (10...a6 11.a5 Nd7 12.ba6 Ra6 13.Bg2–/+) 11.a5 (11.bc6 bc6 12.d4 Bg4=+) 11...Nd7 12.bc6 (12.Qb2 a6 13.b6 Re8=+) 12...bc6 13.Bg2 Ba6 (13...Bb4 14.c4–/+) 14.c4 (14.0–0 Rb8=) 14...dc4 (14...Re8 15.0–0=) 15.Nc4 (15.dc4 Rb8=) 15...Bb4 16.Nfd2 (16.Kf1 Re8=) 16...Rc8 (16...Re8 17.Kd1=) 17.0–0= Qe8 (17...Re8 18.Be4=) 18.Ne4 (18.Be4 Bc4 19.Nc4 Nc5+/–) 18...Qe6= 19.Qc2 f5 (19...Rb8 20.Rfb1+=) 20.Ng5+= Qh6 21.h4 f4= 22.Bh3 Rc7 23.Bd7 Rd7=+ 24.Ne5 Rc7 25.Qb3 c5 26.Rfc1? fg3–+ 27.fg3 Qd6 28.Ngf3 Bb7 29.e4 a6 30.Kg2 Kh8 31.Nc4 Bc8?? 32.Nd6+– Be6 33.Qc2 f6 34.Nd4 Bd7 35.Qf2 cd4 36.Rc7 Bc3 37.Rb1 Bg4 38.Rbb7 Rg8 39.Nf7# 1–0. coloplayah (2185) – cicero (1835), net–chess.com, 2006.

5.Bc3 Bd7 6.d3 Nd6 7.a4 c6 (7...a6 8.ba6 Ra6 9.a5=) 8.bc6= Bc6 9.e3 Nf6 (9...Rc8 10.Be2=) 10.Nbd2 (10.Be2 Qc7=) 10...Qc7 11.Be2 Ba4 12.Ra4 (12.Bf6 Bc2 13.Qc1 ef6 14.Qb2+/–) 12...Qc3–/+ 13.0–0 e6 (13...a5 14.Nb1 Qc7 15.Ra3–/+) 14.Nd4 (14.e4 de4 15.de4 b5=+) 14...Be7 15.N2b3 (15.f4 0–0–/+) 15...0–0 (15...e5 16.Nf3–/+) 16.f4 b5 (16...a6–/+) 17.Ra1 (17.Ra6=+) 17...Rac8?? (17...a5!?–+) 18.Bf3 Rc7 19.h3 Nd7 20.e4 Nc5 21.e5 Nc8?? 22.f5?? Nb3–+ 23.Nb3 Qc2 24.Qc2= Rc2 25.Rac1 Rc1 26.Rc1 Bb4 27.Rc7 a5 28.fe6=+ fe6 29.Rb7? Bc3 (30.Bg4 a4 31.Be6 Kh8 32.Rb5 ab3 33.Rb3 Bd4 34.Kh2 Nb6–+) 0–1. ida1 – Splitter, Live Game Caissa's Web, 2005.

5.Bc3 e6 6.e3 Bd6?? (better is 6...f6=) 7.Bg7+– Nb2 8.Qc1 Nc4 9.Bh8 f5 (9...Ne7 10.Bc4 dc4 11.Qb2+–) 10.d3 Na5 11.Qb2 Bd7 (11...Ne7 12.Qg7 Qd7 13.Qh7 Qb5 14.Ne5 Be5 15.Be5+–) 12.Qg7 Ne7 13.a4 c5 (13...Ng6 14.Qh7 Nh8 15.Qh8 Ke7 16.Qg7 Ke8 17.d4+–) 14.Ne5 (better is 14.Ng5!? Bc8+–) 14...Be5 15.Qe5 Qb6 (15...Ng6 16.Qg7+–) 16.Bf6 (16.Qg7!? 0–0–0 17.Qh7 Re8+–) 16...Ng6 17.Qb2 e5 18.Be5 Ne5 (18...0–0–0 19.Bc3+–) 19.Qe5 Kd8 20.Qd5 Kc7 21.Nd2 Rd8 22.Nc4 Bb5 (22...Nc4 23.Qc4 Kb8+–) 23.Qd8! Kd8 24.Nb6 ab6 25.ab5 Kc7 26.Be2 Kd6 27.0–0 (27.Ra4 c4+–) 27...c4 28.dc4 Kc5 29.Ra5! ba5 30.Ra1 Kb4 31.c3! Kb3 (31...Kc3 32.Ra5 Deflection) 32.Ra5 b6 33.Ra6 1–0. Fournier,Frederic (2040) – joseborges01 (1630), Active, 2004.

5.Bc3 Bg4 6.e3 e5 7.Bc4 e4 8.h3 (better is 8.Be2 ef3 9.Bf3 Bf3 10.Qf3+/– (< 10.gf3 Qg5=)) 8...dc4? (better is 8...ef3 9.gf3 Bf5=) 9.hg4+– ef3 10.Qf3 (10.gf3?! a6+=) 10...Qd6 (better is 10...Qc8+–) 11.Qb7 Rd8 12.Qe4 Ne7 13.Qc4 (13.Rh7 f5 14.Qe7 Be7 15.Rh8 Kf7 16.Rd8 Qd8+/–) 13...Qg6 14.f3 (14.d3 Rd7+–) 14...Nc8? (14...Qc2 15.Na3 Qg6 16.Qc7+–) 15.d3 Be7 16.Qc7 0–0 17.Nd2 Bd6 18.Qc4 Bg3 19.Ke2 Nd6 20.Qc7 (20.Qd5 a6 21.ba6 Rc8+–) 20...Rc8 (better is 20...Rb8 21.Rh5 Nb5 22.Qg3 Nc3 23.Kf1 Rb2+/–) 21.b6?? (better is 21.Qa5 Rfe8 22.a4+–) 21...Rc7–+ 22.bc7 Rc8 23.Ba5 (23.Rab1 Rc7 24.Ne4 f5 25.Ng3 Rc3–+) 23...a6 (better is 23...Qe6–+) 24.Rab1–/+ Nb5 25.a4 Bc7 26.ab5 Ba5 27.c4 Qd6 28.ba6 Qa6 29.Rb5? (better is 29.Ne4–/+) 29...g6?? (better is 29...Bd2 30.Kd2 Qa2 31.Kc3 Qg2–+) 30.Ra1+– Qe6 31.Raa5 Kg7 32.Re5 Qb6 33.Rab5 Qa6 34.Re7 Qa2 35.Rbb7 Rf8 36.e4 Qc2 (36...Qa1 37.e5 Qg1 38.Ne4+–) 37.Ke3 (better is 37.e5!? h5+–) 37...Qc3 38.c5?? (38...Qc5 39.d4 Qc3 40.Ke2 Qd4 41.e5=; better is 38.e5 Qc1 39.Rb1+–) 1–0. MasterofDisaster – 08phypeach, Live Game Caissa's Web, 2004.

5.Bd4 b6 6.e3 (6.e4 a6 7.Nc3 e6+=) 6...Nd6 (6...a6 7.d3 Nd6 8.c4=) 7.Nc3+= Bb7 (7...Nf5 8.Be5+=) 8.Be2+/– Nf5 9.0–0 Nd4 10.Nd4 (10.ed4 a6+=) 10...e5= 11.Nf5 (11.Nf3 Qf6=) 11...g6 (11...Qg5 12.Ng3=) 12.Ng3 Bd6 (12...a6 13.f4=) 13.f4 e4 (13...a6 14.ba6 Bc6 15.Nb5+/–) 14.d3 (14.a3 Nf6+=) 14...f5 15.de4 de4 16.Qd4 Qf6 17.Nd5?? (better is 17.Qf6 Nf6 18.Rfd1=) 17…Qd4–+ (18.Nc7 Kd7 19.ed4 Kc7–+) 0–1. lim2 – skoren, Caissa.com, 2004.

5.Bd4 Bf5 6.e3 Qd7 7.Bc4 dc4 8.Nc3 0–0–0 (8...f6 9.e4 Bg4 10.Be3+=) 9.Ne5+/– Qe6 10.0–0 (10.g4!? Bg6 11.f4+/–) 10...f6= 11.Nf3 Nh6 (11...Kb8 12.Nh4=) 12.Qe2 (12.Ba7 Bg4+/–) 12...b6 (better is 12...Bc2!? 13.Rfc1 Bd3+=) 13.e4+= Bg4 14.h3?? (better is 14.Be3+=) 14...Bf3–+ 15.Qf3 Rd4 16.d3 cd3 17.cd3 f5 (17...Qd7 18.Rfd1–+) 18.a4 (18.Rac1 Qd7 19.Nd5 Kd8–+) 18...fe4 19.de4 Qe5 (19...g5 20.Qe3 Qe5 21.a5–+) 20.Rfe1 (better is 20.a5!? Kb8 21.Rfd1 Rd1 22.Qd1 ba5 23.Ne2–+) 20...e6 21.a5 Bb4 (21...Kb8 22.ab6 cb6 23.Rad1 Rd1 24.Rd1–+) 22.ab6 ab6?? (better is 22...Rc4 23.ba7 Kb7–+) 23.Ra8+/– Kd7? (better is 23...Kb7 24.Rh8 Rc4+/–) 24.Rh8+– Bc3 (24...Rd2 25.Re3+–) 25.Qc3 (better is 25.Qf8 Qf6 26.Qe8 Kd6 27.e5 Qe5 28.Qd8 Kc5 29.Re5 Kb4 30.Qc7 Rd1 31.Kh2 Be5 32.Qe5+–) 25...Rd1 (25...Ke7+–) 26.Qc6 1–0. TriAngel – KingTony, ICC, 1999.

5.Bd4 Nf6 6.e3 e5 (6...Nd6 7.Be2=) 7.Ne5+= Ne5 8.Be5 Nd7 (8...Bd6 9.Bd4+=) 9.Bb2 c5 10.Qf3 Nb6 11.a4 (11…h5 12.a5+/–) 1–0. Trkn – guest2472, ICC, 2004.

5.Bd4 Bg4 6.d3 Nd6 7.Nc3 =.

3.b5 Nb4??

4.a3 Na6 5.ba6 ba6 6.e3 Bb7 7.Qg4 Nf6 8.Bf6 ef6 9.Ba6 Ba6 10.Qa4 c6 (10...Qd7 11.Qa6 c6+–) 11.Qc6 (11.Qa6?! Qc8 12.Qa4 Bd6+–) 11...Ke7 12.Qa6 Ke8 (12...Qb6 13.Qa4 Qb2 14.Qb4 Qb4 15.ab4+–) 13.Qc6 (13...Ke7 14.Nc3+–) 1–0. beat – NOKIA77, Live Game Caissa's Web, 2004.

4.a3 Na6 5.ba6 ba6 6.Nf3 Bb7 7.c4 dc4 8.Qa4 c6 9.Qc4 e6 10.Bd4 Nf6 11.Nc3 Be7 12.Rb1 Rb8 (12...Qd7 13.Na4+–) 13.Ba7 0–0 (13...Nd7+–) 14.Bb8 Qb8 15.Qb3 Qc7 16.Qb7 Qb7 17.Rb7 Ba3 18.Ra7 Rb8 19.Ra6 Ne4 20.Ra3 c5 21.e3 Rb2 22.Ra8 Rb8 23.Rb8 1–0. orane (2095) – amremadel, Live Game Caissa's Web, 2004.

4.a3 c5 5.ab4 cb4 6.e3 Bf5 7.Nf3 Qb6 (7...Nf6 8.Bd4+–) 8.Bd4 Qg6 (8...Qd6 9.c4+– (< 9.Ra7 Ra7 10.Ba7 b6+–)) 9.b6 Nf6 (9...Bc2 10.Bb5 Kd8+–) 10.Ra7 Ra7 (10...Rb8 11.Ne5 Qh6 12.Bb5 Bd7 13.Nd7 Nd7+–) 11.ba7 (11...e5 12.a8Q Ke7 13.Ne5+–) 1–0. MrkT – kezinator, internet, 2005.

4.a3+– c6 5.ab4 cb5 6.e3 e6 (6...Bd7 7.Nc3+–) 7.Bb5 Bd7 8.Bd7 Qd7 9.Nf3 Bb4 (9...f6 10.Ba3 Bd6+–) 10.Bg7 (10.Bg7 f6 11.Bh8+–) 1–0. mtr – cassifornia, internet, 2001.

4.a3 Nc6 5.bc6 bc6 6.Nf3 Nf6 7.e3 e6 8.Be2 Bc5 9.0–0 0–0 10.Nc3 a5 11.Na4 Qd6 (11...Bd6 12.c4+–) 12.Nc5 Qc5 13.Bf6 gf6 14.d4 Qd6 15.c3 c5 16.dc5 Qc5 17.Qd4 Qd6 18.Qf6 Qc5 (18...Ba6 19.Ba6 Ra6 20.c4+–) 19.Bd3 (19.Ne5 Qc3 20.Bh5 Qe5 21.Qe5 c5+–) 19...e5 (19...Ba6 20.Bc2 d4 21.Ne5 Bf1 22.Qg5 Kh8 23.Nf7 (23.Kf1?! f5 24.Qf4 de3+–) 23...Rf7 24.Qc5+–) 20.Qe5 (better is 20.Ne5 Qd6 21.Qg5 Kh8 22.Qh5+–) 20...Rd8 (20...f6 21.Qh5 Rf7+–) 21.Qg5 Kf8 22.Qd8 Kg7 23.Qg5 Kf8 24.Bh7 Ke8 25.Ne5 Qc3 26.Qg8 1–0. Kappel,Ray – Roch,Gui, OP–2010–0–01148, 2010.

4.a3 d4 5.ab4 e5 6.e4 Bb4 7.Nf3 f6 (7...Qe7 8.c3 Bc5 9.Bc4+–) 8.Bc4 a6 (8...Ne7 9.0–0+–) 9.ba6 ba6 10.Ne5! fe5 11.Qh5 g6 (11...Kd7 12.Qe5 Ne7 13.Qd4 Bd6+–) 12.Qe5 Ne7 (12...Qe7 13.Qh8 Qe4 14.Kd1 Bg4 15.f3 Bf3 16.Kc1 Bg2 17.Qg8 Kd7 18.Qh7 Kd6+–) 13.Qh8 Kd7 14.Be6! Ke6 15.Qd8 Bb7 16.Qd4 (16.Qd4 Bd6 17.Qc4 Kd7 18.e5 Bg2 19.Qg4 Nf5 20.Qg2+–) 1–0. woschkat (2200) – calden, net–chess.com, 2001.

4.a3+– e6 5.e3 c6 (5...Nf6 6.Nf3+–) 6.ab4 cb5 7.Bb5 Bd7 8.Bd7 Qd7 9.f4 f6 10.c3 Nh6 11.h4 (11.Nf3 Bd6+–) 11...e5 12.fe5 fe5 13.Nf3 e4 (13...Bd6 14.e4+–) 14.Nd4 (14.Ne5 Qd6 15.c4 dc4 16.Qa4 Kd8+–) 14...Bd6 15.0–0 0–0–0 (15...a6+–) 16.Ra7 Rhf8 (16...Kb8 17.Qa4 Qa4 18.Ra4+–) 17.Ra8 Bb8 18.Rf4 Rf4 19.ef4 Qc7 (19...Rf8 20.c4 Qd6 21.Ne2+–) 20.Ne6 (better is 20.g3!? Qf7+–) 20...Qb6 21.Nc5 Kc7 (21...Qf6 22.g3 Qg6+–) 22.c4! Qb4 (22...dc4 23.Be5) 23.Ne6 Kc8 (23...Kd7 24.Nd8 Qb2 25.Rb8+–) 24.Be5 Qb6 25.c5 Qe6 26.Qa4 Nf7 27.Rb8 1–0. marus2 – busybee20, internet, 2001.

4.a3 Nf6 5.ab4 e5 6.Be5 Bb4 7.e3 Bf5 8.Nf3 Bg4 (8...Qe7 9.Nc3 Be4 10.Bd4+–) 9.Be2 (better is 9.Ra4!? Be7 10.b6 Bf3 11.Qf3 cb6 12.Bb5 Kf8+–) 9...Qe7 10.0–0 (better is 10.Bd4+–) 10...Bf3+/– 11.Bf6 Qf6 12.Bf3 Qa1 13.Bd5 0–0–0? (13...0–0 14.Bb7 Rab8 15.Qf3+/–) 14.Qf3?? (better is 14.Qg4 Kb8 15.Qb4 Rd5 16.Nc3 Qf1 17.Kf1 Rd2 18.Qe7+–) 14...b6?? (better is 14...Qf6 15.Bb7 Kb8 16.Qf6 gf6+/–) 15.Bb7+– Kb8 (15...Kd7 16.Qf7 Kd6+–) 16.Ba6 (16.Ba6 Qa6 17.ba6+–) 1–0. Fournier,Frederic – Necromanser, Active, 2004.

4.d4 Bf5 5.Na3 e6 (5...Nf6 6.c3 A) 6...e6 7.f3 Nh5 (7...h6 8.Qb3 a5 9.cb4 Bb4 10.Bc3 Bd6 11.Nh3 a4; 7...a6 8.Qb3 a5 9.cb4 Bb4 10.Bc3 Qd6 11.Nc2 Bc3; 7...a5 8.Nh3 Bd6 9.cb4 ab4 10.Nc2 0–0 11.e3 h6) 8.g3 Qf6 (8...Bd6 9.cb4 Bb4 10.Kf2 0–0 11.Nh3 Qf6) 9.Bh3 (9.Qd2 a5 10.Nh3 Bg6 11.Bg2 Bd6) 9...a5 (9...Bg6 10.Bg4 Bd6 11.cb4 Bb4) 10.cb4 Bb4 11.Kf1 Bg6; B) 6...e5 7.de5 (7.Nf3 e4 8.Nd2 Nd3 9.ed3 ed3 10.f3 Bd6 11.Kf2 0–0) 7...Ne4 8.Nf3 Bc5 9.e3 Qe7 10.Qc1 a6 11.Nb1 0–0) 6.c3 Nf6 7.f3 Bd6 (7...h6 8.Nh3+/– (8.cb4 Bb4 9.Kf2 Nh5 10.g3 0–0) 8...c5 9.g4 Ng4 10.fg4 Qh4; 7...a5 8.cb4 Bb4 9.Kf2 Nh5 10.g3 0–0) 8.cb4 Bb4 9.Kf2 Ba3? (better is 9...Nh5+/– 10.g3 0–0) 10.Ba3+– c6 (10...a6 11.ba6 Ra6+–) 11.bc6 bc6 12.Qa4 Rb8 (12...Qd7 13.g4 Bg6 14.Nh3+–) 13.Rc1 Qb6 (13...Qd7+–) 14.Rc6 Qb1 (14...Qb5 15.Rc8! Kd7 16.Qb5 Rb5 17.Rh8 Ra5+–) 15.Rc8 1–0. Anonymous – Anonymous, internet, 2011.

4.e3 Bd7? 5.Ba3 (5.a3!? Nc2 6.Qc2 Nf6+–) 5...e5 6.c3 Nd3 (6...a5 7.cb4 ab4+–) 7.Bd3 g6 (7...Ba3 8.Na3 e4 9.Bf1+–) 8.Bf8 Kf8 9.Nf3?? (better is 9.Bf1+–) 9...e4+/– 10.Ne5 (better is 10.Qb3 Nf6 11.Be2 ef3 12.Bf3+/–) 10...Qf6?? (better is 10...ed3 11.Qa4 Nf6 12.Nd3 Kg7+=) 11.Nd7+– Ke7 12.Nf6 Kf6 13.Bc2 Ne7 14.0–0 (14.f3 ef3 15.Qf3 Ke6+–) 14...a6 15.f3 Ke5 16.d4 (16.fe4!? f5 17.ef5 gf5+–) 16...Kd6 17.fe4 ab5 18.ed5 (18.Rf7 Ke6 19.Qf1 Kd7 20.ed5 b4 21.Qb5 Kd8+–) 18...Nd5 19.Rf7 Ne3 20.Qe2 (20.Qf3 Nd5 21.Bb3 Kc6 22.Qd5 Kb6 23.Qc5 Ka6 24.a4 b4 25.Bc4 b5 26.ab5 Kb7 27.Qc7) 20...Nc2 21.Qe7 (21.Qe5 Kc6 22.Qc5) 21...Kd5 22.Qe5 Kc4 23.Rc7 (23.Qe2 Kd5 24.Rd7 Kc6 25.Qe6) 23...Kd3 24.Qg3 (24.Re7 Ne3 25.Qe3 Kc4 26.Nd2 Kd5 27.Qe6) 24...Ne3 Black threatens to counter with Rhe8 25.Na3! Rac8 (25...Ra3 26.Qe5) 26.Rd1 Ke4 27.Re7 (27.Qf3) 27...Kd5 (27...Kf5 28.h4 Nd1 29.Qf3) 28.Qe5 Kc6 29.Qc5 1–0. guest343 – guest516, ICC, 1999.

4.e3 e6 5.a3 Nc2 6.Qc2 a6 (6...Nf6 7.Nf3+– (7.Be5 Bd6 8.Nf3 Be5 9.Ne5 d4 10.Bc4 Qd6+–) 7...Bd7 8.Be2 Rc8 9.Ne5 Bd6 10.Nd7 Qd7+–; 6...Bd7 A) 7.Nc3 Nf6 (7...Rc8 8.Nf3 Nf6 9.e4 de4 10.Ne5 Be7+–) 8.Nf3 Rc8 9.Be2 c6 10.bc6 Bc6+–; B) 7.Nf3 Nf6 8.Ne5 Bd6 9.Bd3 Rc8 10.0–0 c5+–) 7.ba6 (7.Be5 Bd7 8.ba6 ba6 9.Bd3 Qg5 10.Bg3 Bd6+–) 7...Ra6 (7...ba6 8.Nf3 (8.Be5+– c5 9.d4 c4 10.Be2 Ne7+–) 8...c5 9.Be2 Nf6 10.0–0 Bd6+–) 8.Ba6 ba6 9.Nf3 (9.Be5 c5+– 10.Nf3 f6+–) 9...Bd6 (9...f6+– 10.Nc3 Bd6+–) 10.Bg7 e5+– 1–0. pierre – stoswag, internet, 2010.

4.e3 Bf5 5.d3+– e6 (5...d4!? A) 6.e4 Be6 (6...Bg4 7.Qd2 c5 8.a3 Nd5 9.ed5 Qd5 10.c4 Qh5) 7.a3 Na2 8.Nf3 Nc3 9.Nc3 dc3 10.Bc3 Nf6; B) 6.a3 Bg4 (6...Qd6 7.e4 Bg4 8.Qd2 e5 9.Qb4 Qb4 10.ab4 Bb4) 7.Be2 (7.Qg4?! Nc2 8.Kd2 Nf6+/– 9.Qf3 Na1 10.Ba1 e5) 7...Be2 8.Ne2+– Nd5 9.e4 Nb6 10.Bd4 a6) 6.a3 (6.Nf3 d4 (6...a6 7.a3 ab5 8.ab4 Bb4 9.c3 Be7 10.Nbd2 Nf6) 7.e4 Bg4 8.a3 Bf3 9.gf3 Nf6 10.ab4 Bb4; 6.c3 d4 (6...Nf6 7.cb4 Bb4 8.Nd2 0–0 9.Ngf3 a6 10.ba6 Ra6) 7.cb4 Bb4 8.Nd2 de3 9.fe3 Qh4 10.g3 Qh6) 6...Nc2 (6...Qd7 7.ab4 Bb4 8.Nc3+– Qb5 9.Nf3 Nf6 10.Be2 Qc6; 6...Nf6 7.Nf3 a6 8.ab4 ab5 9.Ra8 Qa8 10.Bf6 gf6) 7.Qc2 Nf6 (7...a6 8.Nc3+– ab5 9.Nb5 c6 10.Nd4 Bg6) 8.Nd2 (better is 8.Nf3+– Bd6 9.Be2 0–0 10.0–0 a6) 8...Bc5?? (8...a6+– 9.ba6 Ra6 10.e4 Bg6) 9.Qc5 b6 (9...Qd6 10.Rc1 Qc5 11.Rc5+–) 10.Qc6 Nd7 (10...Ke7 11.a4 Kf8 12.Ngf3+–) 11.Bg7 Rg8 12.Be5 1–0. wyssy – ante, internet, 2011.

4.Nf3 e6? 5.e3 (5.a3 Nf6+–) 5...Bd7? (better is 5...d4 6.Bd4 c5+/–) 6.a3+– Bb5 (6...Nc2 7.Qc2 Nf6 8.Be2+–) 7.Bb5 (7.ab4?! Bf1 8.Rf1 Nf6+–) 7...Nc6 8.0–0 a6 9.Bc6 bc6 10.Nc3 Nf6 11.d3 Rb8 12.Rb1 Bd6 13.Qd2 0–0 14.a4 h6 15.Ba1 Qd7 16.e4 d4 17.Nd4 c5 (17...Bh2 18.Kh2 Qd4 19.Rb8 Rb8 20.Qe2+–) 18.Nf3 Rb4 (18...Ng4 19.Qe2 Ne5 20.Nd2+–) 19.Rb4 (better is 19.e5 Ng4 20.ed6 cd6 21.d4+–) 19...cb4 20.Ne2 White intends e5 20...Qa4 (20...Ne8 21.Bb2+–) 21.Ned4 (better is 21.e5 Nd7 22.ed6 cd6 23.Bb2+–) 21...c5 22.Nb3 Rb8?? (22...Nd7+–) 23.e5 Ne4 24.de4 Be7 25.Rd1 Rd8 26.Qe2 Rd1 27.Qd1 c4 28.Nbd2 c3 29.Nb3 Qa2 30.Nfd4 a5 (30...Bf8 31.Nc6+–) 31.Nc6 Bg5 32.g3 a4 33.Nb4 (better is 33.Nbd4+–) 33...ab3 (33...Qa3 34.Bc3 ab3 35.cb3 Qa8+–) 34.Na2 ba2 35.Bc3 Be7 36.Ba1 (36.Qa1 g6+–) 36...Ba3 37.f4 g6 38.c4 (38.Bd4 h5+–) 38...h5 1–0. Fournier,Frederic (1895) – entiendomad (1670), Active, 2005.

4.Nf3 Bf5 5.d3 d4 6.Bd4 +/–.

4.a3+– Nc2

5.Qc2 a6 6.e3 ab5 7.Bb5 Bd7 8.Bd7 Qd7 9.Nf3 e6 10.0–0 Bd6?? (10...f6+–) 11.Bg7 Qc6 (11...e5 12.d3+–) 12.Qc6 (12.Bh8? Qc2 13.Nc3 Ne7–/+) 12...bc6 13.Bh8 Ke7 14.Bb2 Nf6 15.Nc3 Ng4 16.a4 Rg8 (16...Ra5 17.Rfb1+–) 17.h3 Nh2 (17...Nf6 18.a5+–) 18.Nh2 Bh2 19.Kh2 Rg2 1–0. Fournier,Frederic (1810) – ROCKDEBASE, rated blitz game, 2002.

5.Qc2 d4 6.Nf3 c5 (6...d3 7.Qd3 Qd3 8.ed3 Bd7+–) 7.bc6 bc6 8.Bd4 Nf6 9.e3 e6 10.Ne5 Be7 (10...Bd7 11.Bd3+– (11.Nc6?! Rc8 12.Nd8 Rc2+–)) 11.Nc6 Qc7 12.Bb5 (12.Nc3 Bb7 13.Ne7 Qe7 14.Bb5 Kf8+–) 12...0–0 (12...Bd7 13.0–0+–) 13.Ne7 Qe7 14.Bc5 (better is 14.Qc5 Qd8+–) 14...Qd8 (14...Qc7 15.Qc4 Rd8 16.Bd4 Qc4 17.Bc4+–) 15.Bf8 (15.Bc6!? Ba6 16.Bf8 Rc8+–) 15...Qf8 16.0–0 Bb7 17.d4 Qd6 18.Qc5 Qd8 19.Nd2 Rc8 20.Qg5 h6 21.Qg3 (21.Qe5 Rc2 22.Rfd1 a6+–) 21...Nh5 (21...Qa5 22.Nc4 Qb5 23.Nd6+–) 22.Qg4 g6 (22...Nf6 23.Qe2+–) 23.Bd3 Qf6 (23...Rc3 24.Bc4+–) 24.Be4 Ba6 25.Rfc1 Rf8 (25...Qe7 26.Rc8 Bc8 27.Rc1+–) 26.f4 (26.Rc7 Qd8 27.Rac1 Nf6+–) 26...Qg7 (26...Rd8 27.Rab1+–) 27.Rc7 Nf6 28.Qf3 Ne4 29.Ne4 Rb8 (29...Bd3 30.Nf2 Bb5 31.a4+–) 30.Rac1 Bb7 (30...Rb6 31.Nc5 Qf8 32.Na6 Ra6 33.Rc8 Qc8 34.Rc8 Kg7 35.Qa8 Rd6 36.Qb8 Rd5 37.e4 g5 38.Rh8 e5 39.Qf8 Kf6 40.Rh6) 31.Rb1 Qf8 32.Rbb7 Rb7 33.Rb7 Qa3 34.Nf6 Kg7 35.Ne8 Kf8 36.Nf6 Qc1?? (36...Kg7 37.Nd7 Kg8+–) 37.Kf2+– Qd2 38.Qe2 Qa5 (38...Qe2 39.Ke2 a5 40.Ng4+–) 39.Qb2 (better is 39.Qc4 Qd8 40.Rb8 Qb8 41.Nd7 Kg7 42.Nb8 g5+–) 39...a6 40.Qb4 (40.Nd7 Kg7 41.d5 Qc3 42.Qc3 e5 43.Qe5 Kh7 44.Nf6 Kg7 45.Ne8 Kh7 46.Qg7) 40...Qb4 41.Rb4 1–0. Fournier,Frederic (1995) – Karna (1735), Echecs21, 2003.

5.Qc2 Bd7 6.e3 Nf6 7.Nf3 Ne4 (7...e6 8.Ne5+–) 8.Bd3 Bf5 (8...Nd6 9.Nc3+–) 9.Nh4 (9.Ne5 Be6+–) 9...Be6 (9...Bd7 10.Be4 de4 11.Qe4 Bb5 12.Qb7+–) 10.0–0 Qd7 (10...Bd7 11.Rc1+–) 11.Rc1 0–0–0 (11...f6 12.a4+–) 12.Be4 de4 13.Be5 (Worse is 13.Qe4 Qb5 14.Bd4 Kb8+–) 13...c6 14.Qa4 Qd5 (14...Bd5 15.Qa7 Qe6+–) 15.bc6 Qe5 (15...Rd6 16.Bd6 Qd6+–) 16.Qa7 Rd7 (16...Qb5 17.cb7 Kd7 18.b8Q Ke8 19.Qb5 Bd7 20.Qad7 Rd7 21.Rc8) 17.cb7 Kd8 18.Rc8 1–0. lucya (2135) – pdox40, GameColony.com, 2002.

5.Qc2 e5 6.Be5 f6 7.Bc7 Qd7 8.e3 Ne7 9.d4 Nf5 10.Bd3 Bd6 11.Bf5 Qb5 12.Bd6 Bf5 13.Qf5 1–0. Trkn – Alekehine, itsyourturn.com, 2000.

5.Qc2 e6 6.Nf3 Nf6 7.Nc3 Bd6 8.e4 de4 9.Ne4 Ne4 10.Qe4 0–0 11.Bc4 f5 (11...Re8 12.0–0+–) 12.Qe3 (12.Be6?! Kh8 13.Qd4 Qe7 14.Qg7 Qg7 15.Bg7 Kg7+=) 12...Re8 (12...Qe8 13.Ng5+–) 13.0–0 Kh8 (13...Qe7 14.Ne5+–) 14.Rfe1 Qe7 (14...Re7 15.Ne5+–) 15.Qh6 Qf7 16.Ng5 Qg6 17.Qg6 hg6 18.Ne6 Be6 19.Be6 Kh7 20.Bd5 Rab8 (20...Re1 21.Re1 Rb8 22.Re3+–) 21.Re8 Re8 22.Bb7 g5 23.Kf1 g4 (23...Bh2 24.g3 f4 25.g4+–) 24.Bd4 Rb8 (24...Bf4 25.Ba7 Bd2 26.Bc6+–) 25.Bc6 Rd8 26.Ba7 Be5 27.d4 Bd4 (27...Bf4 28.a4 Rh8 29.Bc5+–) 28.Bd4 Rd4 29.a4 g3 30.fg3 Kg6 31.a5 f4 32.gf4 Kf5 33.a6 Rf4 34.Ke2 Ke5 35.a7 Rf8 36.Ra4 Kf5 37.Re4 g5 38.Re8 Re8 39.Be8 g4 40.a8Q Kf4 (40...Ke5 41.Qc6 Kd4 42.Bf7 Ke5 43.Qe6 Kf4 44.g3 Kg5 45.Qg6) 41.Qd5 g3 42.Bd7 gh2 43.Qf5 Kg3 44.Qg4 1–0. Woelfelschneider,Peter – Wicklund, 1999.

5.Qc2 Nf6 6.e3 Ne4 7.Nf3 e6 8.Be2 Bd6 9.0–0 (Better is 9.d3 Nf6 10.e4+–) 9...Qf6?? (9...0–0 10.Rc1+–) 10.Nc3 (Better is 10.Bf6 Nf6 11.d4 Bd7+–) 10...Be5 (10...Nc3 11.dc3 Qg6+–) 11.Ne5 (Better is 11.Ne4 Bh2 12.Nh2 Qg6+–) 11...Qe5 12.Ne4 Qe4 13.Qe4 de4 14.d3 (14.Rac1!? 0–0 15.Rc7 Rd8+–) 14...ed3 15.Bd3 0–0 16.Rac1 b6 17.Be4 Rb8 18.Rc7 f6 19.Rfc1 e5 20.Bd5 Kh8 21.Rf7 Rf7 22.Bf7 Bf5 23.Rc7 Rd8 24.h3 h6 25.Ra7 Rd2 26.Bc3 Rc2 27.Bb4 Rc1 28.Kh2 Be4 29.f3 Bd3 30.e4 Bb5 31.Bg6 Rc8 32.Bf8 Rf8–/+ 33.a4 Bc4 34.Rc7 Ba6? 35.Rc6–/+ Rb8 36.a5!+– b5?? 37.Ra6 b4 38.Rb6 Rb6 39.ab6 b3 40.b7 b2 41.b8Q 1–0. kamera – NN, GameColony.com, 2002.

5.Qc2 Nf6 6.e3 Bg4 7.Nf3 e6 8.Be2 Bd6 9.0–0 0–0 10.h3 Bf5 11.d3 Nh5? (11...Bg6 12.Ne5+–) 12.Nd4 (Better is 12.g4 Bg6 13.gh5 Bh5 14.Kh1+–) 12...Bg6 13.Bh5 (13.Nd2 e5 14.Bh5 Bh5+–) 13...Bh5 14.Ne2 f5 15.Nf4 Bf4 16.ef4 g5 17.Be5 gf4 18.Bf4 Rf6? 19.Be5 Rg6 20.Kh2 Qg5 21.f3 Rf8 22.f4 Qg3 23.Kh1 Bg4 24.Rf2 Bh3+/– 25.gh3?? Qg1# 0–1. Scirocco – matta, Live Game Caissa's Web, 2004.

5.Qc2 Nf6 6.e3 Bg4 7.Bf6 ef6 8.d4 +–.

5.Qc2 Nf6 6.Nf3 +–.

5.Qc2 g6?? 6.Bh8 Nh6 7.Bb2 Bf5 8.d3 e5 (8...Bd7 9.Qb3+–) 9.Be5 Bd6 10.Bb2 Rc8 11.Nf3 c5 12.e4 de4 13.de4 Be4 (13...Be6 14.Nbd2+–) 14.Qe4 Qe7 15.Nc3 b6 16.0–0–0 Rc7 17.Rd6 f5 18.Qa8 Kf7 (18...Rc8 19.Qc8 Kf7 20.Bc4 Qe6 21.Be6 Kg7 22.Nd5) 19.Bc4 Kg7 (19...Qe6 20.Be6 Kg7 21.Nd5) 20.Ne4 Qf6 21.Bf6 1–0. michaelbuss – UKpottsy, ChessWorld.net, 2009.

5.Qc2 Nh6 6.h3 Bf5 7.Qc1 c5 8.g4 Be4 9.Rh2 d4 10.Bg2 Bg2 11.Rg2+– f5? 12.g5 Nf7 13.g6 hg6 14.Rg6 Ne5+/– 15.Re6 Qd5= 16.Re5 Qe5 17.Nf3?? Qd6 18.h4=+ d3 19.e3?? f4 20.e4?? Qe6–+ 21.Nc3 g5 22.Kd1?? g4 23.Ng5?? Qg6 24.Nd5 Rh4 25.Nf4 Rh1# 0–1. riverborne – paintcreek, Live Game Caissa's Web, 2005.

4.a3+– Qd6

5.ab4 Qb4

6.Qc1 Qb5 7.e3 Qc6 8.Nf3 Qe6 9.Be2 Qg4 10.0–0 h5 11.Nd4 Qh4 (11...Qg6 12.Nb5 Bh3 13.Bf3+– (13.Nc7?! Kd8 14.Bf3 Kc7+/–)) 12.c4 (12.Nb5 Kd8+–) 12...Qg5 (12...dc4 13.Nb5 Kd8 14.Na7+– (14.Qc4?! Qc4 15.Bc4 a5+–)) 13.cd5 Bh3 14.Bf3 e6 (14...h4 15.Kh1 (15.Qc7?! Bg2 16.Bg2 h3+–) 15...Bg4 16.d6 Bf3 17.Nf3+– (17.gf3?! c5+–)) 15.Qc7 (15.de6 Be6 16.Ne6 fe6 17.Bb7 Rd8 18.Qc7 Ne7+–) 15...Rd8 (15...ed5 16.Qb7 Rd8 17.Ra7+–) 16.de6 fe6 17.Nc6 (better is 17.Qb7 Be7+–) 17...Be7 (17...Bg2 18.h4 Bd6 19.hg5 Bc7 20.Nd8 Bf3 21.Ne6 Kd7 22.Bg7 Ke6 23.Bh8 h4+–) 18.Nd8 Bd8 19.Qg7 (19.Qb7!? Ne7+–) 19...Qg7 20.Bg7 Rh7 21.Be5 Bf5 (21...Bg4 22.Be4 Bf5 23.Bf5 ef5 24.Ra7+–) 22.Nc3 (22.Ra7 Nf6+–) 22...Bd3 (22...a5 23.Ne4 b6 24.Rfb1+–) 23.Be4 Bf1 (23...Be4 24.Ne4 b6 25.Ra6+–) 24.Bh7 Bf6 (24...Bc4 25.Bg8 a5 26.Rb1+–) 25.Bg8 Be5 26.Kf1 a6 27.Be6 Ke7 28.Bc8 b5 29.Ba6 b4 30.Nd5 Kd6 31.Nb4 (better is 31.Ra5 b3 32.Nc3 Bc3 33.dc3 h4+–) 31...Ba1 32.d4 h4 33.Ke2 Bc3 34.Nd3 Kd5 35.Nf4 Ke4 (35...Kd6 36.Ng6 h3 37.g4+–) 36.f3 (36.Bd3) 36...Kf5+– 37.d5 (37.Bc8 Kg5+–) 37...Bb4 (37...Be5 38.g4 hg3 39.hg3+–) 38.Kd3 (38.Nd3!? Bc3+–) 38...Bd6 39.Ne6 Bh2 40.Bc8 Ke5 41.f4 (better is 41.Bb7 Kf5+–) 41...Kd5 42.f5 Ke5 43.Nf4! Bg3 (43...Bf4 44.ef4 Combination) 44.Nh5 (better is 44.Ng6 Kf6 45.e4+–) 44...Bf2 (44...Be1+–) 45.f6 Be1 46.e4 (better is 46.Kc4 Kd6 47.Ng7 Kc7+–) 46...Kd6 (46...Bb4 47.Kc4 Bd2 48.Bf5+–) 47.Kc4 Ba5 (47...Bd2 48.Ng7 Bc1+–) 48.e5! Ke5 49.f7 Ke4 (49...Kd6 50.f8Q Kc7 51.Qc5 Kd8 52.Qc6 Ke7 53.Qf6 Ke8 54.Ng7) 50.f8Q Ke3 51.Qd6 (51.Qf3 Kd2 52.Qd3 Ke1 53.Qe3 Kf1 54.Bh3 Bc3 55.g3) 51...Bd2 (51...Kf2 52.Qd4 Kf1 53.Qd1 Be1 54.Nf4 Kg1 55.Qe1 Kh2 56.g3 hg3 57.Qd2 g2 58.Qg2) 52.Qd5 (52.Qf4 Ke2 53.Bg4 Ke1 54.Qf3 h3 55.Qe2) 52...Be1 (52...Ba5 53.Qf3 Kd2 54.Qd3 Ke1 55.Qe3 Kf1 56.Bh3 Bc3 57.g3) 53.Qf3 Kd2 54.Bf5 (54.Qd3 Kc1 55.Kb3 h3 56.Qc2) 54...Kc1 (54...h3 55.Qd3 Kc1 56.Qc2) 55.Qb3 Bf2 (55...Kd2 56.Qd3 Kc1 57.Qc2) 56.Qc2 1–0. alaamattar (2175) – laure (1870), net–chess.com, 2013.

6.Bc3 Qb5 7.e3 e6?? 8.Bb5 (8...c6 9.Bd3+–) 1–0. fanta5 – RIF, Live Game Caissa's Web, 2005.

6.Bc3 Qb5 7.Nf3 Qb6 8.Bd4 c5 9.Be5 +–.

6.Bc3 Qb5 7.Nf3 h6 8.e4 Qd7 9.ed5 Qd5 10.Be2 Bg4 11.0–0 0–0–0? (better is 11...Nf6+–) 12.Ra7 b6 (12...Kb8 13.Ra5 Qd6 14.Ne5+–) 13.Be5 Bf3 (13...Rd7 14.Nc3 Qc6 15.Bb5 Bf3 16.Bc6 Bc6 17.Qg4+–) 14.Bf3 (better is 14.Rc7 Kb8 15.Re7 Ka8 16.Bf3 Ne7+–) 14...Qe5 15.Bc6 Qd5 16.Ra8# 1–0. MarcosRamos (1685) – Kobold, internet, 2007.

6.e3?? Qb2–/+ 7.Nc3 e6 8.Rb1 Qa3 9.Nf3 a6 10.ba6 Ra6?? (10...ba6 11.e4+=) 11.Nb5?? (better is 11.Ba6 Qa6 12.Ra1+/–) 11...Qc5 (11...Qe7 12.Ne5–/+) 12.d4+= Qc6 (12...Qe7 13.c4+=) 13.Ne5 Qb6 14.Nc3 (14.Qd2 f6 15.Qc3 Ke7 16.Qb4 Ke8=) 14...Qa5 (14...Bb4 15.Rb3 Qa5–/+) 15.Ba6? (better is 15.Qd2!? Ra8 16.Bb5 c6 17.Nc6 bc6 18.Bc6 Bd7 19.Ba8 Qa8 20.0–0+=) 15...Qc3–/+ 16.Kf1 (16.Qd2 Qd2 17.Kd2 ba6–/+) 16...ba6–+ 17.Rb3 Qa5 18.Nc6 (18.Rb8 Ne7–+) 18...Qa4 19.Qb1?? (19.Na7 Bd7–+) 19...Ne7 (better is 19...Qc6 20.Rb8 Qc4 21.Ke1 Kd7–+) 20.Ne5 f6 21.Nd3 Qc4 (21...Nc6 22.Nb2 Qa5 23.Qd1–+) 22.f3 Nf5 23.Kf2 g6 (23...Bd6 24.Nb2 Qc6 25.c4–+) 24.Rb8 Kd8 25.Nc5 (25.Qb3–+) 25...Bc5 26.dc5 Qc5 27.Re1 (27.Qb3 Ke7 28.Rd1 Rd8–+) 27...Nh4 (27...d4 28.Qb3 de3 29.Kg1 e2 30.Kh1–+) 28.g3 (28.c4 Nf5 (28...Qc4?! 29.Rb4 Qc3 30.Rh4–/+) 29.cd5 ed5–+) 28...Nf5 29.Kg2 (29.Qb3 Ke7–+) 29...d4 (29...Ne3 30.Kh1 Ke7 31.Qc1–+) 30.e4 (30.ed4 Nd4 31.Qb2 Ke7–+) 30...Ne3 31.Kf2 (31.Re3 de3 32.Rb3 Ke7–+) 31...Nc2 32.Rc1 d3 33.Kg2 f5 34.Rd1 (34.Qb7 Ke7 35.Qb2–+) 34...Ne3 35.Kh1 Nd1 36.Qd1 Qe3 (36...fe4 37.fe4 Qe3 38.h3–+) 37.Rb3 (37.ef5 e5 38.Rb3–+) 37...Qe2 (37...fe4 38.fe4 Qe4 39.Kg1 Qd4 40.Kg2 d2–+) 38.Rd3+= Qd3 39.Qd3 (39.Qd3 Bd7 40.Qa6+=). bambinik – Guest66731, 2003.

6.Be5 Qb5 7.Bc7 Qb2 8.Nc3 g6 9.Ra2 Qb4 10.Nd5 Qc5 11.e4+– e6 12.Ra5 b5 13.Bb5 Bd7 14.Bd7 Kd7 15.Rc5 Bc5 16.Be5 ed5 17.Bh8 f6 18.ed5 Ke7 19.Qe2 Kf7 20.Qe6 Kf8 21.Bf6 Re8 22.Bg7 Kg7 23.Qe8 Nf6 24.Qe5 a5 25.Qc7 1–0. marus – brooklyn, internet, 2001.

4.a3+– e5

5.ab4 Bb4 6.Be5 Nf6 7.e3 0–0 8.Qf3 Bg4 (8...Ne4+–) 9.Bf6 Qf6 (9...Bf3 10.Bd8 Bg2 11.Bg2 Rfd8 12.c4+–) 10.Qf6 gf6 11.Ra4 Bd6 (11...c5 12.bc6! a5 13.f3+–) 12.Rg4 Kh8 13.Nc3 c6 14.Nf3 cb5 (14...a6 15.ba6 ba6 16.Bd3+–) 15.Nd5 Rac8 (15...f5 16.Rh4 Rad8 17.Bb5+–) 16.Bd3 Rg8 17.Rh4 Rg2 (17...Rg7 18.Nd4 Rd8 19.Nf6+–) 18.Rh7 Kg8 19.Nh4 Rg5 20.Nf6 Kf8 21.Ne4 Rg7 22.Rh8 Rg8 23.Rg8 Kg8 24.Nd6 Rc6 25.Rg1 Kf8 26.Nhf5 a5 27.Rg4 b4 28.Rh4 Rd6 29.Rh8 1–0. Janek – Orest, internet, 2016.

5.ab4 Bb4 6.Be5 Nf6 7.Nf3 +–.

5.ab4 Bb4 6.Be5 Qg5 7.Bc7 (7.Nf3 Qh6+–) 7...Bf5 (7...Qf6 8.c3+–) 8.Nf3 Qe7 9.b6 a6 (9...a5 10.e3+–) 10.c3 (10.e3 Nf6+–) 10...Bd6 11.Bd6 (11.Qa4 Bd7 12.Bd6 Qd6+–) 11...Qd6 12.Qb3 (12.Qa4 Qd7 13.Qb3 Ne7+–) 12...Nf6 13.Nd4 Be6 (13...Bg6 14.e3+–) 14.Ne6 (14.e3!? 0–0+–) 14...fe6 15.e3 (15.d4 Nd7+–) 15...0–0 16.Bd3 (16.Na3 Nd7+–) 16...Ng4 (16...Nd7 17.Qc2 h6 18.Bh7 Kh8 19.d4+–) 17.f4 e5 (17...Nf6 18.c4+–) 18.Be2 (better is 18.Ra5 Nf6 19.fe5 Qe5+–) 18...Qe6 (18...Nf6 19.fe5 Qe5 20.0–0+–) 19.Bg4 Qg4 Black gets in control 20.Qd5 Kh8 (20...Rf7 21.fe5 Qf5 22.Na3+–) 21.Qe5 (better is 21.fe5!? Qg6+–) 21...Qg2 22.Qh5 (better is 22.Rf1+–) 22...Qh1–+ 23.Ke2 Rf6 24.Qc5 (24.h4 Rb6 25.Qf3 Qh4–+) 24...Rd8 (better is 24...Qh2 25.Kd3 Qg1–+) 25.d4? (better is 25.Qc7 Qh2 26.Kd1–+) 25...Re6 (better is 25...Re8 26.Kd2 Qg2 (worse is 26...Qh2 27.Kd3 Qb2 28.Nd2 Qa1 29.Qh5–+) 27.Kc1 Rf4–+) 26.Qb4 (26.f5 Qh2 27.Kd1 Re3 28.Qc7 Qe2 29.Kc1–+) 26...Rde8 (better is 26...Qg2 27.Kd1 Re3 28.c4 Rd3 29.Kc1–+) 27.Kd3 (27.Kd2 Qh2 28.Kd3 Re3 29.Kc4–+) 27...Qd1 0–1. Woelfelschneider,Peter – Schneider,B, Telefonpartie, 1985.

5.ab4 d4 6.c3 (better is 6.Nf3 f6+–) 6...b6 (6...dc3 7.Bc3 e4+–) 7.Nf3 Bd6 (7...dc3 8.Nc3 Qd6 9.Qc2+–) 8.cd4 e4 9.Ne5 Nh6 (9...Ne7 10.Qc2+–) 10.Bc3 (better is 10.Qc2!? 0–0+–) 10...0–0 11.e3 (11.Qc2 Bf5 12.Nc6 Qd7+–) 11...f6 (11...Be5 12.de5 Bf5 13.Bd4+–) 12.Bc4 Kh8 13.Nc6 Qd7 (13...Qe8 14.Bd5+–) 14.Ra7 (14.d3 Qf5+–) 14...Ra7 15.Na7 Bb7 16.d5 (16.d3 ed3 17.0–0 Qg4 18.Qg4 Ng4+–) 16...Ra8 (16...Qf5 17.Nc6+–) 17.Nc6 Nf5 (17...Qf5 18.Qc2+–) 18.0–0 (18.Qg4 Qc8+–) 18...Nh6 (18...Qe8 19.d3+–) 19.f4 (19.d3 Qf5+–) 19...Bf8 (19...Nf5 20.Re1+–) 20.Qc2 (20.d3 Nf5 21.Qg4 Bc8+–) 20...f5 (20...Qe8 21.Re1+–) 21.d3 Ng4 22.Qe2 (22.Re1 Re8+–) 22...h5 (22...Qe8 23.Re1+–) 23.h3 (23.Ne5 Qe8 24.de4 fe4 25.Ng4 hg4 26.Qg4 Qf7+–) 23...Nh6 (23...Nf6 24.de4 fe4 25.f5+–) 24.Qh5 Qd6 (24...Kh7+–) 25.Be5 Qd7 26.Qh6 Kg8 27.d6 1–0. 1805DYDIDIDY – Oma, mySchach.de, 2005.

5.ab4 Bd6 6.Nf3 Qe7 7.e3 +–.

5.Be5 Nc2 6.Qc2 a6 (6...Bd7 7.e3+– (worse is 7.Bc7 Rc8 8.Bd8 Rc2+–)) 7.ba6 (7.Qc7?! Qc7 8.Bc7 ab5+–) 7...Ra6 8.e3 (8.e3 Rd6 9.Bd6 Bd6 10.d4+–; 8.Qc7?! Qc7 9.Bc7 Rc6+–) 1–0. Malmstroem,Jan – Ross, email CTON, 1996.

5.Be5 f6 6.ab4?! fe5 7.e4 Nf6 =.

5.Be5 f6 6.Bc3 Nc2 7.Qc2 Ne7 +–.

5.Be5 f6 6.Bg3 +–.

3.b5 Nb8

4.a4 c5 5.e3 Nf6 6.c4 d4 7.ed4 cd4 8.d3 (better is 8.Nf3!?=) 8...e5–/+ 9.Be2 h6 10.Nf3 Nbd7 11.0–0 Nh7 12.Re1 Bd6 13.Nbd2 0–0 14.Ne4 Bc7 15.h3 f5 16.Ng3 f4 17.Ne4 Nhf6 18.Qc2 Ne4 19.de4 Nf6 (19...Nc5!? 20.Ba3 b6=) 20.c5 b6 21.c6 Nh7 22.Ba3 Rf6 23.Bc4 Be6 24.Be6 Re6 25.Qc4 Qe8 26.Rad1 Kh8 27.Nh4 Bd6 28.Bd6 Rd6 29.Nf5 Rf6 30.Rc1 Rc8 31.c7 (31.a5 f3+=) 31...Ng5 32.Qd5 Ne6?? (better is 32...f3 33.h4 Nf7=) 33.Nd6+– (33.Qe5?! Qd7+–) 33...Nc7?? (33...Qd7 34.Nc8 Qc8+–) 34.Rc7! Rd6 (34...Rc7 35.Ne8) 35.Rc8 Qc8 36.Qd6 Qe8 (36...Qc2 37.Qe5 d3 38.Qa1+–) 37.Qc7 (37...f3 38.Qa7+–; better is 37.Rc1!? f3+–) 1–0. lidl4 – 09phypeach, Live Game Caissa's Web, 2004.

4.c4 dc4 5.e4 e6 6.Bc4 b6 1–0. guest648 – guest287, ICC, 1999.

4.d4 e6 5.e3= b6 6.Nf3 Nd7 (6...a6 7.c4=) 7.a3 (7.c4 a6=) 7...Ngf6 (7...a6 8.c4=) 8.c4 (8.Nbd2 a6=) 8...dc4 (8...a6 9.cd5 ed5 10.Qa4=) 9.Bc4 Be7 (9...a6 10.Nbd2=) 10.d5 (10.0–0 a6+=) 10...Nc5 11.Nc3 0–0 (11...a6 12.Ne5+=) 12.0–0 (12.Nd4 a6+=) 12...h6 (12...a6 13.Ne5=) 13.h3 (13.Nd4 a6+/–) 13...Qd7 (better is 13...a6!? 14.Ne5 ab5=) 14.Ne5 Qd6 15.Nc6 Re8 (15...a6 16.Qc2+=) 16.Re1 (16.Qf3 e5+/–) 16...e5 (16...a6 17.Qf3 e5 18.e4+/–) 17.e4 Bb7 18.a4 Bc6 19.bc6 (19.dc6 a6+/–) 19...a6+= 20.f3 (20.Qe2 Ra7+=) ½–½. Frankenfeld,Daniel – Paeschke,Alexander, GER–ch U11 Pinneberg, 1996.

4.d4 e6 5.e3= Nf6 6.Nf3 =.

4.d4 e6 5.Nf3 c5 6.dc5 Bc5?? 7.Bg7+– Nh6 8.Bh8 f6 9.e3 Kf7 10.Bf6 Qf6 11.c3 Nd7 12.Be2 b6 13.0–0 Bb7 14.Qc2 Kg7 15.Nbd2 e5 16.Rad1 Rg8 17.Nb3 Kh8 18.Nc5 Nc5 19.c4 d4+/– 20.ed4?? Bf3=+ 21.Bf3? Qf3–+ 22.g3 Ne4?? 23.Qd3 Qd3 24.Rd3+– Rd8 25.d5 Nc5 26.Rd2 Nf5 27.Re1 Nd4? 28.Kg2+– (28...Nf5 29.Re5+–) 1–0. M8IN3 – vcuatro, Live Game Caissa's Web, 2005.

4.d4 e6 5.Nf3 Nf6 6.Nbd2 =.

4.d4 Bf5 5.Nf3 =+.

4.e3 b6 5.c4 Bb7 6.Nf3 Nd7 7.Be2 e6 8.0–0 Ngf6 9.a4 Be7 10.cd5 Bd5 11.Nc3 0–0 12.Nd5 Nd5 13.Rc1 Bf6 14.d4 Be7 15.e4 Nf4 16.Bc4 Bg5 17.Rc2 Nf6?? (better is 17...Bh6+/–) 18.Ng5+– h6 19.g3 Ng6 20.e5 hg5 21.ef6 Qf6 22.d5 Qe7 (22...e5+–) 23.de6 fe6 24.Re2 Kh7 (24...Rf7 25.Re6 Qc5 26.Rc6+–) 25.Re6 Qc5 26.Qh5 (26.Qh5 Kg8 27.Rg6 Rf7 28.Rg7 Kf8 29.Qf7) 1–0. rcm06 (1900) – multiplayer, gameknot.com, 2012.

4.e3 b6 5.c4 (5.Nf3 a6+=) 5...e6= 6.Nf3 (6.cd5 ed5 7.Qc2 Ne7=) 6...Bb7 (6...a6 7.cd5 ed5 8.Qa4=) 7.cd5+= Bd5 8.Nc3 Bf3 (8...Bb7!?+=) 9.Qf3+/– Nd7 10.g3 (10.d4 Ngf6+/–) 10...Ne5 (10...Rc8 11.d4+=) 11.Qe4+/– Bd6 12.Bg2 (better is 12.d4 Nf6 13.Qb7+/–) 12...f5? (better is 12...Rb8+/–) 13.Qa8+– Qa8 14.Ba8 Nd3 15.Ke2 Nb2 16.Nd1 (16.Rab1 Nc4+–) 16...Nc4 17.Bc6 (17.Rc1 Na3+–) 17...Ke7 (17...Kf7 18.Rc1 Na3 19.Nc3+–) 18.Rc1 Ne5 (18...Na5 19.Bg2+–) 19.d4 (19.Bg2 Nf6+–) 19...Ng4 (better is 19...Nc6 20.Rc6 Kd7+–) 20.h3 N4f6 21.Rc4 Kd8 (21...Nd5 22.Ra4+–) 22.Ra4 a5 (22...Ke7+–) 23.ba6 (23.ba6 Nh6 24.a7+–) 1–0. Wall,Bill – Cobra, internet, 2002.

4.e3 b6 5.Nf3 a6 +=.

4.e3 c5 5.Be2 A) 5...Qd6 6.Nf3 Nd7 7.0–0 e5 8.d4 cd4 9.Ba3 Qb6=; B) 5...e6 6.Nf3 Nd7 7.0–0 Ngf6 8.c4 Bd6 9.d4 0–0+=; C) 5...Nf6 6.Nf3 Bg4 (6...e6 7.0–0 Bd6 8.c4 0–0 9.d4 dc4+=; 6...a6 7.0–0 Bg4 8.ba6 Na6 9.Nc3 Nc7+=) 7.h3 Bf3 8.Bf3 e6 9.c4 a6=; D) 5...f6 6.f4 a6 (6...Bf5 7.Nf3 e6 8.Nh4 Nh6 9.Nf5 Nf5+=; 6...c4 7.Nf3 a6 8.ba6 Na6 9.0–0 e6+=; 6...Qd6 7.Nf3 Nd7 8.0–0 e5 9.fe5 fe5+=) 7.Nf3 ab5 8.Bb5 Bd7 9.a4 e6=; E) 5...a6 E1) 6.a4 Nf6 (6...f6 7.f4 Bf5 8.Nf3 e6 9.0–0 Bd6+=; 6...e6 7.Nf3 Nf6 8.0–0 Bd6 9.c4 0–0=; 6...ab5 7.ab5 Ra1 8.Ba1 Nf6 9.Nf3 e6=) 7.Nf3 e6 8.Nc3 Be7 9.0–0 0–0=; E2) 6.Nf3 ab5 7.Bb5 Bd7 8.Qe2 e6 9.Ne5 Nf6=.

4.e3 c5 5.Nf3 e6 (5...Nf6 6.Be2 Nbd7 7.c4 e6 8.0–0 Bd6 9.d4 0–0+=; 5...Bf5 6.Be2 f6 (6...e6 7.0–0 Nf6 8.Nh4 Bg6 9.f4 Ne4+=; 6...Nf6 7.0–0 e6 8.Nh4 Bg6 9.f4 Nfd7+=; 6...a6 7.0–0 Nf6 8.ba6 Na6 9.Nc3 Nc7+=) 7.0–0 e5 8.Nh4 Be6 9.f4 Qa5+=) 6.c4 (6.Be2 Nf6 (6...Nd7 7.0–0 Ngf6 8.c4 Bd6 9.d4 0–0+=) 7.0–0 Bd6 8.c4 0–0 9.d4 b6=; 6.Bd3 Nd7 (6...Nf6 7.0–0 Nbd7 8.a3 Bd6 9.Nc3 0–0+=; 6...a6 7.Nc3 Nf6 8.0–0 Bd6 9.ba6 ba6=) 7.Nc3 Ngf6 8.0–0 Bd6 9.a4 0–0+=) 6...Nf6 7.Be2 (7.d4 Nbd7 8.cd5 Nd5 9.Nc3 a6+=) 7...b6 (7...a6 8.Na3 Bd6 9.0–0 0–0=) 8.0–0 (8.d4 a6 9.cd5 ed5+=) 8...Be7 (8...Bd6 9.d4 0–0+=) 9.Qc2 (9.d4 0–0+=) 9...dc4 (9...a6=) 10.Na3 a6 11.Qc4 ab5 12.Nb5 0–0 13.d4 Ba6 14.dc5 bc5 15.Rad1 Nd5? (better is 15...Qa5 16.a4 Bb7=) 16.e4+– Nb6 17.Qc3 N8d7?? (17...Bf6 18.Rd8 Bc3 19.Rf8 Kf8 20.Bc3 Bb5 21.Bb5 Ra2+–) 18.Qg7# 1–0. Buss,Michael – Marlow Jr,Marvin, USCF88N299, 1988.

4.e3 Qd7 5.a4 c6 6.Nf3 f6 7.c4 e5 8.Nc3 Qd6 (8...Bb4 9.d4+=) 9.Qb3 (better is 9.bc6 bc6 10.cd5 cd5 11.d4+/–) 9...Be6?? (better is 9...Qb4 10.Qb4 Bb4 11.cd5 Bc3 12.Bc3 cd5+=) 10.bc6+– Qc6 (10...Nc6 11.cd5 Bf7+–) 11.cd5 (11.Nd5?! Bd6+/–) 11...Bd5 12.Nd5 Nd7 (12...Qc8+–) 13.Bb5 Qe6 (13...Qc8 14.Rc1 Bc5+–) 14.Nc7 1–0. Janek – Larry, internet free game, 2017.

4.e3 Qd7 5.Nf3+= Qd6 (5...Nf6 6.Be2+=) 6.Be5 Qc5 (6...Qd8 7.d4+=) 7.d4+/– Qb6 8.c4 dc4 9.Bc4 e6 (9...Nd7 10.0–0+/–) 10.Nbd2 Nd7 11.Bd3 Ne5 12.Ne5 Bd6?? (better is 12...Qd6+/–) 13.Nec4+– Qb5 (13...Nf6+–) 14.Nd6 (14.Nd6 cd6 15.Bb5 Ke7 16.Qc2+–) 1–0. pierre – qici, internet live, 2010.

4.e3 Nd7 5.Nf3 Ngf6 6.Be2 e6 7.0–0 Be7 8.d4 0–0 9.a4 b6 10.a5 Bb7 11.a6 Bc8 12.c4 dc4 13.Bc4 Nd5 14.e4 N5f6 15.Nc3 Re8 16.e5 Ng4 17.Qc2 Nf8? (Better is 17...Nh6+–) 18.Qe4 Ne5 19.Ne5 (19.Qa8?! Nc4 20.Rfb1 Bb4+–) 19...Bd7 20.d5 Bf6 21.Nd7 Nd7 (21...Qd7 22.Rfd1 ed5 23.Qd5 Qd5 24.Bd5+– (24.Nd5?! Bb2 25.Nc7 Ba1 26.Na8 Be5=; < 24.Rd5 Rac8+–)) 22.de6 Nc5 (22...fe6 23.Be6 Kh8+–) 23.ef7 Kh8 24.fe8Q Qe8 25.Qe8 Re8 26.Rfe1 Rd8 27.Rad1 Rd1 (27...Rc8 28.Bd5+–) 28.Nd1 (28…h6 29.Bf6 gf6 30.Re7+–) 1–0. Bonetti,Shane – BobA (1665), ICC, 2002.

4.e3 e5 5.c4 dc4 6.Bc4 Nd7 7.d4 =.

4.e3 e5 5.c4 d4 6.Qb3 (6.ed4 ed4 7.Qe2 Be7=) 6...Be6 (6...c5!?=) 7.Nf3 de3 8.fe3 (8.Qe3!? Nd7 9.Ne5+=) 8...e4 9.Nd4 Bg4 10.Nc3 Nf6 11.h3 Bd7 12.g4 Bc5 (12...h5 13.g5 Nh7 14.h4+/– (worse is 14.Ne4 Ng5 15.Qd3 Ne6+=)) 13.Bg2+/– Qe7 14.g5 Nh5 (14...Bd4!? 15.ed4 Nh5+/–) 15.Ne4+– (15.Be4?! Bc8 16.Rg1 Bd4 17.ed4 Nf4+/–) 15...0–0?? (better is 15...Bd4 16.Bd4 Bf5+–) 16.0–0 (better is 16.Nc5 Bc8 17.Ne4 Rd8+–) 16...c6? (16...Bh3 17.Nf5 (17.Bh3?! Qe4 18.Nf5 Nf4+/–) 17...Bf5 18.Rf5+–) 17.a4?? (17.Nc5 Qc5 18.bc6 Nc6 19.Qb7 Rab8 20.Qd7 Ne5+–) 17...b6? (17...Bh3 18.Nf5 (18.Bh3 Qe4 19.Nf5 Nf4+/–) 18...Bf5 19.Rf5+/–) 18.Rf2?? (better is 18.Qd1 g6 19.Qf3 a6+–) 18...Bd6?? (18...Bh3 19.Bf3 f5 20.gf6 Nf6 21.Nc6 Nc6 22.Nf6 gf6 23.Bc6 Rad8+–) 19.Nf5 Bf5 20.Nd6 Bd7? 21.Ba3+– Qe5 22.Raf1 Ng3 23.Nf7 Rf7 24.Rf7 Be6 25.Rf8 1–0. TuGGy – ManRook, playchess.de, 2005.

4.e3 e5 5.c4 Nf6 6.Be5+= Be7 (6...Be6 7.cd5 Nd5 8.Nf3+=) 7.Nf3 (7.cd5 Nbd7 8.Bd4 Nb6+/–) 7...0–0 8.Nc3 c6 (8...Nbd7 9.Bd4+/–) 9.Be2 (9.cd5 cd5 10.Be2 a6+/–) 9...Re8 (9...dc4 10.Bc4 a6 11.a4+=) 10.0–0 Nbd7 11.bc6 bc6 12.cd5 Ne5 13.Ne5 cd5 14.d4 (14.Bb5!? Rf8 15.d4+/–) 14...Bd6 15.Bb5 (15.Nf3 Bf5+=) 15...Re6 (15...Be5 16.Be8 (16.de5?! Re5 17.Qd4 Qd6+=) 16...Bb8 17.Bb5=+) 16.a4 Be5 17.de5 Re5 18.Bc6 The pressure on the isolated pawn grows (18.Qd4 Qd6+=) 18...Rb8 19.a5 (19.Rc1 a6=) 19...Bb7 (19...Ba6 20.Re1 Rb2+=) 20.Bb7 Rb7 21.a6 Rbe7 22.Qb3 Ng4 23.h3 Nh6 24.Rfd1+/– Rd7 25.Rd4 Nf5+= 26.Rf4 d4= 27.ed4 Nd4 28.Qb2 h6 29.Ne4 Re6 30.Nc5 Ne2–/+ 31.Kf1?? Nf4 32.Nd7–+ Kh7 33.Rd1 Qg5 34.Qb7 Re8 35.Qf3 ½–½. gtate (1720) – jde (1760), net–chess.com, 2002.

4.e3 e5 5.Be5 Ne7 +=.

4.e3 f5 5.c4 dc4 (5...e6 6.Qh5 g6 7.Qf3+=) 6.Bc4 Nf6 7.Bf6 (7.Nf3 a6 8.Ng5+/–) 7...gf6? (better is 7...ef6 8.Nf3 a6+=) 8.Qh5+– Kd7 9.Qf5 Ke8 10.Qh5 Kd7 11.Qd5 Ke8 12.Qf7 Kd7 13.Qd5 (13.Nc3!? c6+–) 13...Ke8 14.Qf7 Kd7 15.Nf3 a6?? (15...c6 16.Nc3 Kc7 17.Rc1+–) 16.Nc3 (better is 16.Ne5! fe5 17.Qf5 Kd6 18.Qd3 Kc5 19.Qd8+–) 16...ab5 17.Nb5 Nc6 (17...Kc6+–) 18.Be6 1–0. marus1 – kelly844, internet, 2001.

4.Nf3 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Bd7 8.e3 c6 9.bc6 Bc6 10.Nc3 Nf6 11.Be2 e6 12.0–0 Bd6 13.Nb5 Bb5 14.Bb5 Nc6 15.c4 0–0 16.Qa4 Qc7? (better is 16...dc4!? 17.Rc1 Nb4+=) 17.Bf6+– gf6 18.cd5 ed5 19.Qg4 Kh8 20.Qf5 Qe7?? (better is 20...Kg7+–) 21.Bd3 (21.Bd3 Qe4 22.Be4 de4 23.Qf6 Kg8 24.Qd6 ef3 25.Qg3 Kh8 26.Qf3+–; 21.Qd5?! Ne5+–) 1–0. marcosramos (2360) – kkoushik (2060), net–chess.com, 2007.

4.Nf3 a6 5.e3 ab5 (5...Nf6 6.Ne5=) 6.Bb5 c6 7.Be2 Nf6 8.0–0 Nbd7 9.c4 e6 (9...dc4 10.Bc4 Nb6 11.Be2=) 10.Nc3 (10.d4 dc4 11.Bc4 Bd6=) 10...Nb6 (10...dc4 11.Bc4 b5 12.Be2=) 11.cd5 (11.d3 Bd6+=) 11...ed5 12.Qc2 Bd6 13.e4 de4 (13...Be7 14.ed5 Nbd5 15.Nd5 Qd5 16.Bf6 Bf6 17.Bc4+=) 14.Ne4+= Be7 15.Nf6 Bf6 16.Qe4 (16.Rab1 Nd5+=) 16...Qe7= 17.Qe7 (17.Qb1 Bb2 (17...Qe2? 18.Re1 Qe1 19.Qe1 Kd8 20.Bf6 gf6 21.a4+–) 18.Qb2 A) 18...Qe2 19.Rfe1 (19.Qb6?! 0–0=) 19...Qe1 20.Re1 Be6 21.Qb6+–; B) 18...0–0=) 17...Ke7 18.Rab1 Nd5 (18...Na4 19.Bf6 Kf6 20.Rfc1=) 19.Bc4 Bb2 (19...Ra7 20.Rfe1 Be6 21.Bd4 Bd4 22.Nd4=) 20.Rfe1 (20.Rb2 Rd8=) 20...Kd6 21.Rb2 ½–½. Ganesan,Arasu – Svensson,Jan, corr 3GMMsemi–04, 1998.

4.Nf3 a6 5.e3 ab5 6.Bb5 Bd7 7.Nc3 d4 (7...e6!?=) 8.Nd4 Bb5 (8...e5 9.Nb3+/–) 9.Ncb5 (9.Ndb5 c6 10.Nd4 Nf6+/–) 9...e5 10.Nb3 Qf6?? (better is 10...Qd7 11.Qe2 c6+/–) 11.Nc7+– Kd8 12.Na8 Nh6 (12...Qa6 13.Nc7! Kc7 14.Be5 Kc8 15.Bg7 Bg7 16.Qg4 Nd7 17.Nc5+–) 13.Qf3 (better is 13.Qe2 Qc6 14.Be5 Qg2 15.Bc7 Ke7 16.Qf1 Qf1 17.Rf1+–) 13...e4 (13...Qf3 14.gf3 Nd7+–) 14.Qf6 (14.Bf6 Be7 15.Qf4 Ke8 16.Qb8 Kd7 17.Qc7 Ke6 18.Qe7 Kf5 19.Qe5 Kg6 20.Qg5) 14...gf6 15.Bf6 Ke8 16.Bh8 Nc6 17.Nb6 (17.Nd4 Nd4 18.Bd4 Bd6+–) 17...Nb4 18.Nd4 (better is 18.Ke2 f5+–) 18...Nf5 19.0–0 (better is 19.Nf5 Nc2 20.Ke2 Na1+–) 19...h5 20.Nf5 Nc2 21.Rab1 (21.Rac1 Bc5 22.Nd5 Kd7 23.Rc2 Kc6 24.Nde7 Kd7 25.Rc5 b5 26.Rd5 Kc7 27.Rc1 Kb7 28.Rd7 Ka6 29.Rc6 Ka5 30.Ra7 Kb4 31.Bc3) 21...Bb4 22.Nc4 h4 23.Rfc1 h3 24.Rc2 Bc5 25.Rb7 hg2 (25...Kd8 26.Bf6 Ke8 27.Ng7 Kf8 28.Rb8) 26.Ncd6 Kf8 (26...Bd6 27.Rc8) 27.Bg7 (27.Rb8) 27...Kg8+– 28.Rc5 Kh7 29.Rf7 Kg6 30.Ne7 Kh7 31.Rh5 1–0. wlittle (2300) – eeethomas (1795), net–chess.com, 2004.

4.Nf3 a6 5.e3 Nf6 6.Ne5 =.

4.Nf3 c6 5.a4 a6 6.ba6 Na6 7.e3 Qb6 8.Bd4 Nc5 9.Nc3 f6 10.e4 (10.Nh4!? Nh6 11.a5+=) 10...e5= 11.Bc5 (11.Rb1!? Qa7 12.Ne5 fe5 13.Qh5 Kd8 14.Qe5=) 11...Bc5–/+ (11...Qc5?! 12.ed5 cd5 13.Bb5 Kf7 14.0–0=) 12.ed5 (12.Qe2 Ne7–/+) 12...Bf2 13.Ke2 Bd4 14.Rb1 Qa5 15.dc6 bc6 (15...Bc3 16.cb7 Bb7 17.Rb7 (worse is 17.dc3 Qa4 18.Ke1 Bc6–/+) 17...Qa6 18.Rb5 Qa4 19.Ke1 Qe4 20.Qe2 Ra1 21.Kf2 Bd4 22.Nd4 Qd4 23.Qe3 Qe3 24.de3+=) 16.Ne4 Qd5 17.d3 Ra4 18.c3? (better is 18.Nd4 ed4 19.Kf2–+) 18...Ra2 19.Ke1 (19.Ned2 Bc3 20.Qc1–+) 19…Qe4 (19...Qe4 20.Be2 Bc3 21.Kf2 Qd5–+) 0–1. Hartwell,S – Williams,Michael, USA Golden Knights corr, 1994. (=1.Nf3 d5 2.b4 Nc6 3.b5 Nb8 4.Bb2 c6)

4.Nf3 c6 5.bc6 Nc6 6.e3 f6 (6...Qb6 7.Bc3=) 7.Nh4 (7.c4 e5=) 7...e5 (7...Nh6!?=+) 8.Qh5+= g6? (better is 8...Kd7+=) 9.Ng6!+– hg6 10.Qh8 (10.Qh8 Qb6 11.Bc1+– (11.Qg8 Qb2 12.Qg6 Ke7–/+)) 1–0. Wall,Bill – Westin,Bruce, Mt View, CA, 1988.

4.Nf3 c6 5.e3 Bd7 6.a4 f6 7.c4 cb5 (7...Bg4 8.h3 Bh5 9.bc6 Nc6 10.cd5 Qd5 11.Nc3+=) 8.ab5+/– Be6 (8...Bg4 9.cd5 Qd5 10.Nc3+/–) 9.c5 Nd7 (9...Bg4 10.d4+/–) 10.d4 Bf7 11.Be2 e6 12.0–0 Ne7 13.Nc3 g6 14.e4 Bg7 15.ed5 ed5 16.Qd2 0–0 17.Qf4 Qb8 18.Qg4 Qc8 19.Rfe1 (19.Rfe1 Re8 20.Qf4+–) 1–0. orane – gsbs, internet, 2003.

4.Nf3 Nd7 5.d4 Nb6 6.e3 Bf5 7.a4 e6 8.Bd3 (8.a5!? Nd7 9.a6+=) 8...Bd3= 9.Qd3 Nf6 (9...Nc4 10.Ba3=) 10.Nbd2 Bb4 (10...a5 11.0–0=) 11.0–0 Ba5 12.Nb3 Bb4 13.c3 Bd6 14.Ba3 Nc4 15.Bd6 Nd6 (15...cd6 16.Nbd2 Qc7 17.Nc4 Qc4 18.Qc4 dc4 19.Nd2=) 16.Nbd2 Nfe4 17.c4 Nd2 18.Nd2 dc4 19.Nc4 0–0 20.Nd6 ½–½. mtr – proxy2478, internet, 2001.

4.Nf3 e6 5.a4 c6 6.e3 Bd7 7.c4 dc4 (7...Nf6 8.Be2=) 8.Bc4+= cb5 (8...Nf6 9.0–0+=) 9.ab5 Qb6 (9...Nf6 10.Be5+=) 10.Qb3 (10.Bd4 Qd8+/–) 10...a6 11.Nc3 (better is 11.Bd4 Qd8 12.0–0+/–) 11...Bd6?? (better is 11...Nf6+=) 12.Na4+– Qc7 (12...Qa5 13.Bc3 (13.Bg7?! ab5 14.Qb1 Qb4+–) 13...ab5 14.Ba5 Ra5 15.Qc3 Ra4 16.Ra4 bc4 17.Qg7 Ba4 18.Qh8+–) 13.Bg7 (13.b6 Qd8 14.Bg7 Nc6+–) 13...Bb5 (13...ab5 14.Bb5 (14.Bh8?! bc4 15.Qc2 Bc6+/–) 14...Ra5 15.Bd7 (15.Bh8?! Rb5 16.Qd3 Rh5+–) 15...Nd7 16.Qd1+– (worse is 16.Bh8 b5+–)) 14.Bb5 ab5 15.Qb5 Kd8 (15...Qd7 16.Qd7 Nd7 17.Ke2+–) 16.0–0 Nc6 (16...Ra5 17.Qb3 b5 18.Nb2+–) 17.Bh8 e5 (17...Ra5 18.Qd3 Rh5 19.Nb2+–) 18.Nb6 (better is 18.Nc5 Rb8 19.Ne4+–) 18...Ra5 (18...Rb8+–) 19.Ra5 Bc5 20.Qc5 1–0. Doda (2070) – HereAgain, Freundschaftspartie, 5m + 0s, 2007.

4.Nf3 e6 5.e3 Nf6 (--> 4.e3 Nf6 5.Nf3 e6).

4.Nf3 Bf5 5.e3 e6 6.c4 (6.Be2 Nf6=) 6...Nf6 7.Nc3 c6 (7...Bd6 8.cd5 ed5 9.Be2=) 8.a4 (8.cd5 Nd5 9.Nd5 Qd5=) 8...Bd6 9.Be2 (9.bc6 bc6 10.cd5 ed5=) 9...0–0 (9...dc4 10.Bc4 0–0 11.d3=) 10.0–0 (10.Nh4 Bg6=) 10...Nbd7 (10...dc4 11.Bc4 Nbd7 12.Rc1=) 11.d4 (11.Nh4 Qc7=) 11...Re8 (11...dc4 12.bc6 bc6 13.Bc4=) 12.c5+= Bc7 13.a5 (13.Nh4!?+=) 13...Ba5+= 14.Nd2 (14.bc6 bc6 15.Qa4 Bc3 16.Bc3 Ne4=) 14...e5 (14...Bc7 15.Nf3–/+) 15.de5 Ne5 16.Nb3 Bc7 17.Nd4 Bd7 18.h3 (18.Qb3 Bg4+=) 18...Ne4 (18...Qe7 19.Ba3–/+) 19.Na4 (19.f4 Nc4 20.Bc4 dc4 21.Ne4 Re4 22.bc6 bc6–/+) 19...Qe7 (19...Qg5 20.Kh1–/+) 20.b6 (20.Qc2 Qg5 21.Kh1 Qg6–/+) 20...ab6 21.cb6 Bd6 22.Nf3 (22.Nc3 Ra1 23.Ba1 Nc4 24.Bc4 dc4 25.Ne4 Qe4–/+) 22...Qe6 (22...Nf3!? 23.Bf3 Qg5 24.Kh1–+) 23.Ne5 (23.Be5 Be5 24.Ne5 Qe5–/+) 23...Be5 24.Be5 Qe5 25.Qc1 (better is 25.Bd3!?–/+) 25...c5–+ 26.Nb2 Qe6 (26...Ra1 27.Qa1 Qf6 28.Bd3 Qb6 29.Rc1–+) 27.Bf3 (27.Ra8!? Ra8 28.Rd1–+) 27...Qb6 (27...Ra1 28.Qa1 Qb6 29.Rd1–+) 28.Rb1 (28.Ra8 Ra8 29.Rd1 Be6–+) 28...Qg6 29.Kh2 (29.Be4 Re4 (29...Qe4?! 30.Qc5 Qg6 31.Kh2–/+) 30.Kh2 b6–+) 29...b6 (29...Bf5 30.Kh1–+) 30.Rd1 (30.Nd3 Qf6–+) 30...Nf2 31.Rd5 Bc6 32.Rd2 Ne4 (32...Bf3 33.Rf2 Be4 34.Ra1–+) 33.Rc2 (33.Be4 Be4 34.Ra1 Ra1 35.Qa1 b5–+) 33...Qg3 (33...Red8 34.Kg1 b5 35.Nd1–+) 34.Kg1 Re6 (34...b5 35.Nd3 c4 36.Nf2–+) 35.Nd3 Rb8 (35...Ng5 36.Bc6 Rc6 37.Nf4–+) 36.Nf4 Rh6 (36...Ree8 37.Nd3–+) 37.Rbb2 Ng5 (37...g5 38.Nh5 Qh4 39.Qd1–+) 38.Bc6 (38.Bg4 Bb7–+) 38...Rc6 39.Rc5 (39.Rc3–+) 39...Rc5 40.Qc5 (40.Qf1 Nf3! 41.Qf3 Rc1 42.Qf1 Qe3 43.Rf2 Rf1 44.Kf1 Qc1 45.Ke2 Re8 46.Kf3 Qe3 47.Kg4 f5 48.Kh5 Qf2 49.Ne2 Qe2 50.g4 g6 51.Kh4 Qe1 52.Kg5 Qe7 53.Kf4 Qe3) 40...h6 (40...Nf3 41.Kh1 Qe1) 41.Qc1 (41.Qc3 Ne4 42.Qd4 Qe1 43.Kh2 Ng3 44.Rb6 Nf1 45.Kg1 Ne3 46.Kh2 Re8–+) 41...Re8–+ 42.Re2 Nf3 43.Kf1 Qh2 Do you see the mate threat? 44.Kf2 Nh4 (better is 44...Ng5!? 45.Rb2 Ne4 46.Ke2 Qg3–+) 45.Qc6+= Rf8 ½–½. Cianfarani,Gaelle – Touzet,Geraldine, FRA–ch U18 Girls, 1997.

4.Nf3 Nf6 5.e3 (--> 4.e3 Nf6 5.Nf3).

4.g3 b6 5.Bg2 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 c6 9.bc6 Nc6 10.d4 Nh6 11.e3 e6 12.Nd2 b5 13.Ne2 Bd6 14.0–0 0–0 15.Nf3 f6 16.Qd3 Qb6 17.Rb1 Na7 (17...Ba6!?=+) 18.e4 de4 19.Qe4 Bd7 20.d5 (20.c4 Bb8+/–) 20...f5 (better is 20...e5!?=+) 21.Qd3 e5? (better is 21...Qc7+=) 22.Ne5+– Be8 23.Bd4 Nf7?? (better is 23...Qc7 24.Qc3 Qe7+–) 24.Bb6 (24…Ne5 25.Qb3+–) 1–0. audrey – printer, Live Game Caissa's Web, 2004.

4.g3 b6 5.Bg2 Bb7 6.Nf3 Nf6 (6...a6 7.a4=) 7.0–0 (7.a4 a6=) 7...Nbd7 (7...a6 8.a4=) 8.d4 (8.h3 a6 9.a4 e6=) 8...e6 (8...a6 9.a4=) 9.Nbd2 (9.Qd3 a6 10.a4 c5=) 9...c5 (9...a6 10.a4=) 10.c4 Bd6 (10...a6 11.a4=) 11.cd5+= Bd5 (11...ed5 12.Ne5+=) 12.dc5 (12.e4 Ne4 13.Ne4 Be4+=) 12...Bc5 (12...bc5? 13.e4 Be4 14.Ne4 Ne4 15.Ne1+–; 12...Nc5?! 13.Re1+=) 13.a4 (13.e4 Bb7+=) 13...0–0 14.Nb3 a6 (14...Bd6 15.Qd3=) 15.Re1 (15.Qd3 ab5 16.ab5 Ne4=) 15...ab5 (15...Bb4 16.Rf1=+) 16.ab5 Bb4 17.Rf1 Ne4 (17...Ra1 18.Ba1 Qe7 19.Qc2=+) 18.Nfd4 (18.Ra8 Qa8 19.Qd4 Bc3 20.Bc3 e5+–) 18...Bc3 (18...Qf6 19.Qc2 Qg6 20.Ra8 Ra8 21.f3=) 19.Bc3 Nc3= 20.Qc2 Bg2 21.Kg2 Nd5 22.Nc6 Qe8 23.Ra8+= Qa8 24.Ra1 Qe8 25.Nbd4 e5 26.Nf5+/– Qe6 27.e4 N5f6 28.Qe2 Nc5 29.Rd1 Nfe4 30.Qg4 g6–/+ 31.Nh6 Kh8 32.Qe6=+ fe6 33.f3 Nc3–/+ 34.Re1 e4 35.fe4 N5e4 36.Ng4 h5 37.Nge5 Rf2 38.Kg1 Kg7 39.Nd4 Rb2 40.Nd7 Ng5 41.Ne6=+ Ne6 42.Re6 Rb5 43.Nb6 Ne2 44.Re2= Rb6 45.Kg2 Rb4 46.Rf2 h4 47.h3 g5 48.g4 Rb3 49.Rf3 Rb2 50.Rf2 Rb4 51.Rf5 Kg6 52.Rf3 Rb5 53.Rf2 Rb4 54.Rf5 Rf4?? 55.Rf4+– gf4 56.Kf3 Kg5 57.Ke4 f3 58.Kf3 Kf6 59.Kf4 Kg6 60.g5?? Kf7?? 61.Kf5 Kg7 62.g6 Kf8 63.Kf6 Kg8 64.g7 Kh7 65.Kf7 (65...Kh6 66.g8Q Kh5 67.Qg6#) 1–0. coloplayah (1985) – mgoodrich (2040), net–chess.com, 2005.

4.a4 c6

5.e3 (--> 4.e3 c6 5.a4).

5.Nf3 Bf5 =.

4.e3 a6

5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.bc6 Nc6 9.Nf3 Qa5 10.Bc3 Qc5 11.Be2 e6 12.0–0 Bd6?? (better is 12...Nge7+=) 13.Bg7+– Be5 (13...e5 14.d4 Qb6+–) 14.Ne5 Ne5 15.Bh8 (better is 15.d4 Qa5 16.de5 Bd7+–) 15...Ng6 16.Bd4 Qd6 17.g3 (17.Nc3 e5 18.Nb5 Qc6+–) 17...N8e7 (17...e5 18.Bb2+–) 18.Nc3 (18.f4 Bd7+–) 18...e5 19.Bb5 (19.Nb5 Qf6 20.Bc5 b6 21.Nd6 Kf8+–) 19...Bd7 20.Bd7 Kd7 21.Ba7 b6 22.Qb1 Nc8 23.Nb5 Qc5 24.c3 (24.d4 Qc4 25.Bb8 f6 26.de5 fe5+–) 24...e4 (24...Kc6 25.Qf5 Nge7 26.Qf7 Qb5 27.Bb8+–) 25.Rd1 (25.Bb8!? f5+–) 25...Ne5 26.d4 Nf3 27.Kg2 Qe7 (27...Qc4 28.Bb8+–) 28.Qb4 (28.Bb8 Qe6+–) 28...Qf6 (28...Qb4 29.cb4 Kc6 30.Rc1 Kb5 31.Rc8 Ne1 32.Kg1 Nf3 33.Kh1+–) 29.Bb8 (better is 29.Qb3 Ne7 30.Na3 Ng5+–) 29...Ke8 (29...Nh4 30.Kf1 (30.gh4?! Qf3 31.Kg1 Qd1 32.Kg2 Qf3 33.Kf1 Qd1 34.Kg2 Qf3 35.Kg1 Qd1 36.Kg2=) 30...Nf3 31.Qb3+–) 30.Bf4 (30.Nc7 Kd7 31.Nd5 Nh4 32.Kg1 Qc6+–) 30...Ne7 (30...Kd7 31.c4 h6 32.Nc3+–) 31.Nd6 Kf8 32.Qb6 Nh4 (32...Qe6+–) 33.gh4 Qg6 34.Bg3 (34.Kh1 Kg7 35.Rg1 Qg1 36.Kg1 h6 37.Bh6 Kg6 38.Ne8 Kh7 39.Qf6 Nf5 40.Qf5 Kh6 41.Qf6 Kh5 42.Qg5) 34...Nc8 35.Qd8 Kg7 1–0. Fournier,Frederic (1920) – pertusato, Active, 2005.

5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.Nf3 Nh6 9.c4 e6 10.Qa4 Bd7 11.Nc3 (11.Qa7 Nf5+=) 11...Nf5= 12.Bb2 Be7 13.cd5 ed5 14.Bd3 0–0 15.0–0 Nh4 16.Nh4 Bh4 17.Qa7 Qc7 18.Rc1 Bd8? (better is 18...Be6+=) 19.Qc5+– Re8 20.Nd5! Qc8 (20...cd5 21.Qd4 Double attack (21.Qc7 Pinning; 21.Qc7 Deflection; 21.Qd4 Decoy)) 21.Qd4 f6 22.Nf4 (22.Qh4 Bf5 23.Qh5 g6 24.Bf5 Qf5 (24...gh5?? 25.Bc8 cd5 26.Bb7+–) 25.Qf5 gf5 26.bc6 Nc6 27.Bf6 Kf7+–) 22...Bf5 23.bc6 bc6 24.e4 Qd7?? (better is 24...Bg4+–) 25.ef5 Qd4 26.Bd4 Nd7 (26...Ba5 27.Be3+–) 27.Bc4 (27.Ne6 Ba5+–) 27...Kh8 28.Be6 Re7 (28...Nb8+–) 29.Rc6 Ne5 (29...Nf8 30.Bc5 Ne6 31.Re6 Re6 32.fe6+–) 30.Rc8 Nf7 31.g4 h6 32.Bf7 Rf7 (32...Re8 33.Be8 g6 34.Bg6 Kg8 35.Rd8 Kg7 36.Ne6) 33.Ng6 (33.Rd8 Kh7 34.Ng6 Rf8 35.Rf8 h5 36.Rh8) 33...Kh7 (33...Kg8 34.Rd8 Rf8 35.Rf8 Kh7 36.Rh8) 34.Rd8 1–0. Janek – Andrew, internet, 2016.

5.Bd4 ab5 6.Bb5 c6 7.Bd3 Qd6 8.a4 e5=+ 9.Bb6?? d4 10.e4?? Nd7–+ 11.Bd8 Kd8 12.Na3 Nc5 13.Nc4 Qf6 14.Nb6 Nd3 15.cd3 Ra6 16.Qb3 Be6 17.Qb2 Bc5 18.Nc4 b6 19.Qa2 Kc7 20.Qb1 Ne7 21.a5 b5 22.Nb2 Rha8 23.Qc2 Bd6 24.Nf3 Ra5 25.Ra5 Ra5 26.0–0 Bg4 27.Ne1 Qg6 28.f3 Be6 29.g4 h5 30.Ng2 hg4 31.f4 Qh5 32.f5 Nf5 33.ef5 Bf5 34.Rc1 Ra6 35.Qb3 Rb6 36.Rf1 Be6 37.Qd1 g6 38.Qa1 g3 39.hg3 Bh3 40.Rf6?? Be6 41.Nh4?? Qg5 42.Rf2 Qg3 43.Ng2 e4! 44.de4 Qh2 45.Kf1 Qh1 46.Ke2 0–1. riverborne – CHESSrUS, Caissa's Web, 2006.

5.Nf3 ab5 6.Bb5 Bd7 7.Nc3 Bb5 8.Nb5 e6 (8...c6 9.Nc3=) 9.Be5+= c6? (better is 9...Na6+=) 10.Nc7+– (10.Nc7 Ke7 11.Qb1+–) 1–0. pierre – oppolm, internet live, 2010.

5.Nf3 Nf6 =.

4.e3 c6

5.a4 a6 6.Nc3+/– Bd7 (6...Nf6 7.Nf3+=) 7.Nf3 e6 (7...Nf6 8.Bd3+/–) 8.Bd3 f6?? (better is 8...Nf6+/–) 9.Ne5!!+– fe5 (9...fe5 10.Qh5 Double attack (10.Qh5 Decoy)) 10.Qh5 Ke7 11.Ba3 Kf6 12.Qf3 Kg5 13.g4 (13.Qf8?! Qf8 14.Bf8 Kf6+/–) 13...e4 (13...Be8 14.h4 Kh6 15.g5 Qg5 16.hg5 Kg5 17.Bf8 g6 18.0–0–0 ab5 19.Rdg1) 14.Ne4! de4 (14...de4 15.h4 Mate attack) 15.h4 Kg6 16.Be4 Kh6 17.Qf4 (17.Qf4 g5 18.Bf8 Qf8 19.Qf8#) 1–0. miec – buchoy, internet, 2009.

5.a4 a6 6.c4 ab5 7.ab5 Ra1 8.Ba1 dc4 9.Bc4 cb5 10.Bb5 Bd7 11.Bd7 Qd7 12.Nf3 e6 13.0–0 Bd6?? (better is 13...f6+=) 14.Bg7+– f6 15.Bh8 Kf7 (15...Nc6 16.Nc3+–) 16.Nd4 Nh6 (16...Kf8 17.Qb3 Kf7 18.f4+–) 17.Qh5 Kg8 18.Bf6 (18.Qh6!? Kh8 19.Qf6 Kg8 20.Ne6 Nc6+–) 18...Nf5 19.Nf5 ef5 20.Qg5 Kf8 21.Nc3 Nc6 22.Qh6 Kf7 23.Qh7 Kf6 (23...Ke6 24.Qh6 Kf7+–) 24.Qd7 Bh2 25.Kh2 Ne5 26.Qd6 (26.Qd6 Kg5 27.f4 Kh5 28.Kg3 Nf3 29.Rh1 Nh2 30.Rh2) 1–0. Fournier,Frederic (1810) – mangutcor (1705), Active (1/1), 2005.

5.a4 cb5 6.ab5 Bd7 7.Nf3 a6 8.ba6 ba6 9.Be2 Bc8 10.0–0 e5? (10...Nf6 11.Be5+=) 11.d3 (11.Ne5 Bb7+–) 11...e4? (better is 11...f6!?+=) 12.de4+– de4 13.Qd8 Kd8 14.Nd4 (better is 14.Ng5 Ke8 15.Ne4+–) 14...Bc5? (14...Nf6+/–) 15.c3?? (better is 15.Rd1 Nd7 16.Ne6 fe6 17.Bg7+–) 15...Bd4+= 16.cd4 Nf6 17.Nd2 Bg4? (better is 17...Re8!?+=) 18.Bg4+– Ng4 19.Ne4 h5 20.Nc5 Ke7 21.Rfb1 Kf6 (better is 21...Rc8+–) 22.h3 Nh6 23.d5 Kg6 24.Bd4 f5 (24...Kh7 25.e4+–) 25.d6 (better is 25.Rb7 Nf7 26.Ne6+–) 25...Kf7 (25...Nc6 26.Bc3 Rhb8 27.Ne6+–) 26.d7 (26.Rb7 Nd7 27.Rd7 Ke8 28.Re7 Kd8 29.Ne6 Kc8 30.Rc7 Kb8 31.Rb1) 26...Rd8+– 27.Rb7 Ke7 (27...Nc6 28.Rc7 (28.Na6?! Nd4 29.ed4 Ng8+/–; 28.Ra6?! Ra6 29.Na6 Nd4 30.ed4 f4+–) 28...Nd4 29.ed4+–) 28.Rab1 (28.Bg7 Ng8 29.Be5 Nf6+–) 28...Nd7 (28...Nf7 29.Bg7 Nd6+–) 29.Nd7 (better is 29.R1b6 a5 30.Re6 Kf7 31.Rd6+–) 29...Rd7 30.Bc5 (better is 30.Rd7!? Kd7 31.Rb7 Ke6 32.Rg7+/–) 30...Ke8+= 31.Rb8 Rb8 32.Rb8 Kf7 33.Rb6 Rd1 34.Kh2 g5?? (better is 34...Rd5!? 35.Bd4 a5+/–) 35.Ra6 (better is 35.Rh6 Rd2 36.Kg3 h4 37.Kf3+–) 35...g4?? (35...Rd5 36.Rh6 Rc5 37.Rh5+–) 36.Bd4 (better is 36.Rh6!? Rd2 37.Rh5 Kg6 38.hg4 fg4+–) 36...gh3?? (36...Ng8!?+/–) 37.gh3 (better is 37.Rh6 hg2 38.Kg2 Ke7+–) 37...f4?? (37...Ng8+–) 38.Rh6 Rd2 39.Kg2 fe3 40.Be3 Rd3 41.Rh5 Kg6 42.Rg5 Kf6 43.Rg3 Rb3 (43...Rd7 44.h4+–) 44.h4 (44.Bd4 Kf5 45.Rb3 Ke4+–) 44...Rb2 (44...Rb5 45.Rg5 Rb7 46.Bd4 Ke6 47.f4+–) 45.h5 (45.Bd4 Ke7 46.Bb2 Ke6+–) 45...Rb8 (45...Rb7+–) 46.h6 Rh8 (46...Ke5 47.h7 Rh8 48.Rh3+–) 47.Rg7 (better is 47.Bd4 Ke6 48.Bh8+–) 47...Rh6 (47...Ke5 48.f4 Kd6+–) 48.Bh6 Kf5 49.Rg8 Kf6 50.Ra8 Kf5 51.Kg3 Kg6 52.f4 Kh6 53.Kg4 Kg6 54.f5 Kf6 55.Rf8 Kg7 56.Ra8 Kf6 57.Kf4 Kf7 (57...Ke7 58.Ke5 Kd7 59.f6 Kc7 60.f7 Kc6 61.f8Q Kb6 62.Qd6 Kb5 63.Rb8 Kc4 64.Qd4) 58.Kg5 (58.Ke5 Ke7 59.f6 Kf7 60.Ra7 Kf8 61.Ke6 Kg8 62.Rg7 Kh8 63.Rg3 Kh7 64.f7 Kh6 65.f8Q Kh5 66.Qh8) 58...Ke7+– 59.f6 Kf7 (59...Kd6 60.f7 Kc5 61.f8Q Kc6 62.Rc8 Kb7 63.Rc3 Ka6 64.Qb4 Ka7 65.Ra3) 60.Kf5 ½–½. Fournier,Frederic (1785) – supermaikel (1785), Active, 2004.

5.a4 cb5 6.ab5 Nd7 7.Nf3 Nb6 8.d3 Bg4 9.Be2 Bf3 10.Bf3 Nf6 11.0–0 e6 12.Nd2 Be7 13.Be2 Bd6 14.c4 Qc7 15.h3 dc4 16.dc4 0–0 17.Qb3 Rac8? (17...Nbd7!?=) 18.Rfc1 (18.Bf6 gf6 19.Ra7 Ra8+/–) 18...Qe7 (18...Ra8!?+/–) 19.Ra7 Bc5 (19...Bb8 20.Ra2+/–) 20.Bf3 (20.Bf6 gf6 21.Rca1 f5+–) 20...e5? (better is 20...Nc4!? 21.Qc4 Ba7 22.Qc8 Rc8 23.Rc8 Ne8+–) 21.Rb7+– (21.Bb7?! Rc7 22.Ba3 Ba3 23.Qa3 Qd7=) 21...Qe6 22.Ne4 Ne4 23.Be4 f5?! 24.Bd5 Nd5 25.cd5 Qd6 26.Ba3 Ba3= 27.Rc8 Rc8–/+ 28.b6 Bc5 29.f3 f4–+ 30.Kh2 Be3 31.Rc7 Rc7 32.bc7 Qc7 33.d6 Qf7 34.Qb8 Qf8 35.Qc7 h6?? 36.d7+– Bf2 37.Qc8 Bg3 38.Kg1 1–0. OutOfBounce – ERIC1, Live Game Caissa's Web, 2005.

5.a4 Nd7 6.c4 dc4 7.Bc4 e5 8.Qf3 Qf6 9.Qe2 Bc5 10.Nf3 Bd6 11.d4 (11.Nc3 Ne7+=) 11...Ne7 12.0–0 0–0 (better is 12...e4!? 13.Nfd2 Nb6=) 13.Nbd2+/– ed4 14.Ne4 (worse is 14.Nd4 c5 15.Ne4 Bh2 16.Kh2 Qh4 17.Kg1 Qe4=; worse is 14.Bd4 Qg6+=) 14...Qh6 15.Nd6 Nf6?? (better is 15...Qd6 16.Rfd1 Nb6+/–) 16.Nc8 (worse is 16.Nd4 Ng4 17.h3 Qd6 18.hg4 Qg6+–) 16...Rac8 17.Nd4 Ne4 18.Qd3 Qg6 19.bc6 bc6 20.Nb3 (20.Rfd1 Rfe8+–) 20...Rcd8 21.Qc2 Nd5 22.Bd5 Rd5 23.Nd4 Rh5 (23...Rc5 24.Qe2 Rd8 25.f3+–) 24.g3 (better is 24.f3 Nc5 25.Qg6 hg6 26.Nc6 Re8+–) 24...Rh2 (24...c5 25.Nb5 a6+–) 25.Kh2 Qh5 26.Kg2 Ng5 27.Rh1 Qg4 28.Qh7 Nh7+= 29.Rh4 (29.Rh4 Qg6 30.Rah1+–) 1–0. OutOfBounce – ERIC1, Live Game Caissa's Web, 2005.

5.a4 e6 6.f4 Nf6 7.Nf3 Be7 8.c4 dc4 9.Bc4 0–0 10.0–0 cb5 11.ab5 Nd5 12.Nc3 Nc3 13.Bc3 Bf6 14.Bf6 Qf6 15.Nd4 b6?? (15...Rd8 16.d3+/–) 16.Nc6 (Better is 16.Qf3 e5 17.Ne2+– (< 17.Qa8 ed4 18.Ra7 Be6 19.Be6 Qe6+–)) 16...Nc6 17.bc6 a5 18.Qf3 Ba6 19.Ba6 Ra6 20.d4 Rc8 21.Rfc1 b5 22.d5?? ed5–/+ 23.Qd5 Rac6 24.Rcb1 Rc5–+ 25.Qb7 b4 26.Ra5–/+ Rc1 27.Rc1 Rc1 28.Kf2 Qh4 29.Kf3 Qh5?? 30.Rh5+– Rf1 31.Ke2 h6 32.Qb4 1–0. bashful – MaSteen22, Live Game Caissa's Web, 2004.

5.a4 Nf6 6.Nf3 +=.

5.Nc3 Nf6 +=.

5.bc6 bc6 6.Be2 Bb7 7.Nf3 f6 8.d3 e5 9.0–0 Qc8 10.Nbd2 Nd7 11.c4 dc4 (11...Rb8 12.Rc1+=) 12.Nc4 Bc5 (12...c5 13.Nfd2+/–) 13.d4 ed4 14.ed4 Bb6?? (better is 14...Be7+/–) 15.Nd6+– Kd8 16.Nc8 Kc8 17.Rb1 Kc7 18.Qc2 Ne7 19.Bb5 Nd5 20.Rfc1 Rac8 21.Bc6 (better is 21.Qa4 Nb8+–) 21...Kb8 (21...Nb4 22.Qe4 Nc6 23.d5+–) 22.Qa4 Rc7 (22...Bc6 23.Rc6 Bc7 24.Ra6+–) 23.Bb7 (23.Bd7 Rc1 24.Rc1 Nf4+–) 23...Kb7 (23...Rb7 24.Qc6 Nf4 25.Qd6 Bc7 26.Rc7 Ne2 27.Kf1 Rc7 28.Ke2+–) 24.Rc7 Kc7 25.Ba3 (better is 25.Qc4 Kd8 26.Qd5 Bc7+–) 25...Rc8 26.Rc1 Kb7 27.Rc8 Kc8 28.Qc6 Kd8 29.Qd5 Kc7 30.Qd6 Kd8 31.d5 Ke8 32.Nd2 Ne5 33.Qe7 1–0. Fournier,Frederic (1775) – marde42, Active, 2005.

5.bc6 Nc6 6.Nf3 Bg4 7.Bb5 Nf6 8.h3 Bh5 9.d3 (9.g4 Bg6=) 9...a6 10.Bc6 bc6 11.Nbd2 e6 12.0–0 Bd6 13.Qc1 e5 (13...0–0 14.c4+=) 14.Re1 (14.Be5!? 0–0 15.c4+/–) 14...e4 15.Nd4 ed3 (15...Qd7!?=) 16.cd3 Bg6 (better is 16...c5!? 17.Nf5 0–0+/–) 17.Nc6+– Qc7 18.Nd4?? (18.Bf6!? gf6 19.e4 de4 20.Ne4 0–0+–) 18...0–0 (better is 18...Bd3!? 19.Qc7 Bc7+=) 19.Qc7+/– Bc7 20.Rec1 (20.Nc6!? Bd3 21.Ne7 Kh8 22.Bf6 gf6 23.Nd5+/–) 20...Bd6+= 21.Rc6 Be5 (21...Rfd8 22.Rd1 Bd3 23.N2b3+=) 22.Rac1 (22.N2f3 Nd7+/–) 22...Bd4 (22...Bd3!? 23.N2f3 Nd7+=) 23.Bd4+/– (23.ed4?! Bd3 24.R6c3 Bb5=) 23...Bd3 24.Nf3 (24.R6c3 Be4+/–) 24...Bc4 25.Bf6 gf6 26.Rf6 Kg7 27.Rf4 Rab8 28.Rc2 Rb1 29.Kh2 Ra1 30.Nd2 Ra2?? 31.Ra2 Ba2+/– 32.Rd4 Rd8 33.f3 Kf8 34.e4 Ke8 35.ed5 Rd5+= 36.Rd5 Bd5 37.Nb1 a5 38.Nc3 Bc4 39.Na4 Bb3–/+ 40.Nc5? a4–+ 41.Nd3 a3 42.Nc1 a2?? 43.Na2?? Ba2–+ 44.Kg3 Bd5 45.Kf4 Ke7 46.g3 Ke6 47.g4 Kf6 48.h4 Kg6 49.h5 Kh6 50.Ke3 f6 51.f4?! Be6 52.Kf3 f5 0–1. Fournier,Frederic (1800) – manujo (1860), Active, 2005.

5.Nf3 Bd7 6.Ne5 f6 7.Qh5 g6 8.Ng6 hg6 9.Qg6 1–0. Bonetti,Shane – afbp, ICC, 2002.

4.e3 Qd6

5.Nf3 Nd7 =.

5.Nf3 Bg4 6.Ba3 (6.h3 Bf3 7.Qf3 e5+=) 6...Qf6= 7.Nc3 c6 (7...Bf3 8.gf3 e6 9.Bb2=) 8.Be2 Bf3 9.Bf3 d4 (9...Nd7!?=) 10.Ne4 (10.bc6 Nc6 (10...dc3?? 11.cb7 cd2 12.Kd2+–) 11.Qb1 A) 11...dc3 12.Qb7 cd2 13.Ke2 Nd4 14.Kd1 (14.ed4?! Qe6 15.Kd2 Rc8+–) 14...Nf3 15.Qa8 Kd7 16.Qa7 Ke6 17.Rb1+–; B) 11...Rb8+/–) 10...Qe5 11.Bb2 (11.Rb1 f5 12.Nc5 de3 13.de3 Qc3 14.Ke2 Nf6+–) 11...Qb5 12.Bd4 (12.ed4? Qb2 13.Rb1 Qa2 14.Rb7 e6–+) 12...e5 13.Rb1 Qd5?? (better is 13...Qa5 14.Bc3 Qc7+/–) 14.Nf6!!+– Nf6 15.Bd5 cd5 16.Be5 Nbd7 17.Bf6 Nf6 18.Rb7 Bc5 19.c4 0–0 20.d4 Bd6 21.c5 Bb8 22.Qc2 Ne4 23.c6 Bd6 24.c7 Rac8 25.Qc6 Rfe8 26.f3 Bb4 27.Rb4 Nf6 28.Kf2 h5 29.Rhb1 Re7 30.Rb8 Ree8 31.Rc8 Rc8 32.Rb8 (32.Rb8 Kh7 33.Rc8+–) 1–0. pierre – supa, internet, 2010.

5.f4 f6 6.Nf3 (6.c4 Be6+=) 6...Qb4 (6...Bg4 7.h3 Bf5 8.Nd4=) 7.Ba3+= White gets in control 7...Qa5 8.c4 e6 (8...a6 9.Nd4 dc4 10.Bc4 ab5 11.Qh5 g6 12.Qb5 (< 12.Bb5 c6 13.Qc5 Nd7 14.Nc6 bc6 15.Bc6 Qc7–/+) 12...Qb5 13.Nb5+=) 9.Bf8 Kf8 10.cd5 (10.Qb3 Ne7+/–) 10...ed5+= 11.Qb3 Be6 (11...Ne7 12.Nc3 Be6 13.Bd3+=) 12.Nd4+/– Ne7?? (better is 12...Bf7+/–) 13.Ne6+– Kf7 14.f5 g6 15.Nc3 c6 16.e4 gf5 17.ed5 cd5 18.Nd5 Nd7 19.Ndc7 Rac8 20.Nd8 Kg7 21.Nce6 Kg6 22.Qg3 Kh5 23.Be2 Kh6 24.Nf7# (24.Qg7#) 1–0. pcmvr (2560) – dgall (1860), net–chess.com, 2006.

5.f4 Nf6 6.Nf3 =.

4.e3 Bd7

5.c4 dc4 6.Bc4 Nf6 7.Nf3 e6 8.0–0 Be7 9.e4 0–0 10.e5 Nd5 11.d4 Nb6 12.Bd3 a6 13.a4 ab5 14.ab5 Ra1 15.Ba1 c6 16.Qc2 Nd5 17.Bh7 Kh8 18.bc6 Bc6 19.Be4 Nb4 20.Qe2 N8a6 21.Ng5?? (better is 21.Nc3+/–) 21...Bg5–+ 22.f4 Bh6 23.g4 (23.Nd2 Qh4–+) 23...f5 (23...Be4!? 24.Qe4 f5 25.ef6 Qf6 26.f5–+) 24.ef6 (24.Bc6 Nc6 25.g5 Bg5 26.fg5 Qg5 27.Kh1–/+) 24...Rf6 (better is 24...Qf6 25.g5 Bg5–+) 25.g5–/+ Bg5 26.fg5 Rf1 27.Kf1 Qg5 28.Bc6 Nc6 29.Qe6 Qc1 30.Kg2 Qb1 31.Qh3?? (31.Qe8 Kh7 32.Qh5 Kg8 33.Qe8 Kh7 34.Qh5 Kg8 35.Qe8 Kh7=) 31...Qh7?? (better is 31...Kg8 32.Qe6 Kh7 33.Qh3 Kg6 34.Qe6 Kg5 35.Qe3 Kf6–+) 32.Qc8= Qg8 33.Qb7?? (better is 33.Qh3 Qh7 34.Qc8 Qg8 35.Qh3 Qh7=) 33...Qd5–+ 34.Kg1 Qg5 35.Kf2 Qd2 36.Kf3 Nd4?? (better is 36...Qd3 37.Kf4 Qf1 (< 37...Nd4 38.Qa8 Kh7 39.Qe4 Qe4 40.Ke4–+) 38.Kg3 Nab4 39.Qc8 Kh7–+) 37.Kg4?? (better is 37.Bd4 Qd4 38.Qa6 Qd5 39.Kf4=) 37...Qd1–+ (38.Kh4 Qe1 39.Kg4 Qg1 40.Kh3 Qa1 41.Qa8 Kh7 42.Qe4 Kh6 43.Qh4 Kg6 44.Qg4 Kf6 45.Qh4 Ke5 46.Qg3 Kd5 47.Qg5 Kc4 48.Qg7 Nc5–+) 0–1. chevin – karen, Live Game Caissa's Web, 2004.

5.Nf3 a6 6.ba6 Ra6? (better is 6...Na6 7.Be2 e6=) 7.Ba6+– Na6 8.Ba3 f6 9.Nh4 b5?? (better is 9...g6+–) 10.Qh5 g6 11.Ng6! (11.Qd5?! c6 12.Qd3 Qa5+–) 11...Bg7 (11...hg6 12.Qg6#) 12.Nh8 (12...Kf8 13.Qf7#) 1–0. cagey – janoc, Live Game Caissa's Web, 2004.

5.Nf3 c6 6.bc6 Bc6 7.Be2 Nf6 8.0–0 e6 9.d4 Be7 10.c4 0–0 11.cd5 Bd5 12.Nbd2 Nc6 13.a3 Rb8 (13...Qb6 14.Rb1=) 14.Rb1 Qa5 15.Qc2 Ba3 (better is 15...Rfc8!? 16.Qd3 b5=) 16.Ba3 (16.Ba3 Qa3 17.e4+=) 1–0. Fournier,Frederic (1680) – alaraque, Active, 2005.

5.Nf3 c6 6.Be2 cb5 7.0–0 e6 8.Nc3 Be7 (8...b4 9.Nb5=) 9.Bb5 (9.Nb5 Nf6+=) 9...Nh6 (better is 9...Bb5!? 10.Nb5 Nf6=) 10.Bd7+/– Nd7 11.Ne2 (better is 11.Nd5!? ed5 12.Bg7+/–) 11...0–0= 12.d4 (12.Nc3 Qc7=) 12...Rc8 (12...Qc7 13.Qd3+=) 13.a4 (13.Qd3 Qc7 14.Rfc1 Nf5+=) 13...Nb6 (13...Qc7 14.Bc3–/+) 14.a5 (14.Ba3 Ba3 15.Ra3 Qc7+=) 14…Nc4 (14...Nc4 15.Bc3 Qc7+=). makaveli1982 – champ359, internet, 2007.

5.Nf3 e6 6.a4 Nf6 7.Nc3 Bb4 8.Be2 (8.Bd3 0–0 (8...c5 9.Be2 c4 10.Na2 Bd6 11.d3 cd3 12.Bd3=; 8...Qe7 9.Ne5 Bd6 10.Ng4 Ng4 11.Qg4 Qf6 12.Qh5=; 8...a6 9.0–0 0–0 10.Ne2 Ne4 11.c4 Nc5 12.Bb1+=) 9.0–0 Qe7 10.Ne5 c5 11.Be2 a6 12.ba6=; 8.Ne5 0–0 (8...Bc8 9.Be2 Bd6 10.f4 Nbd7 11.Nd7 Qd7 12.0–0=; 8...Bd6 9.f4 Bc8 10.Qf3 0–0 11.Qg3 Nbd7 12.Be2=; 8...Be7 9.Be2 Bd6 10.Nd7 Nbd7 11.a5 a6 12.ba6=) 9.Qf3 Bd6 10.Nc4 Be7 11.Be2 c5 12.Ne5=) 8...Bc3 (8...Bd6 9.Ba3= Ba3 10.Ra3 0–0 11.Rb3 c5 12.bc6=; 8...0–0 9.0–0 Bd6 10.Ba3 Ba3 11.Ra3 Qe7 12.Rb3=; 8...a6 9.Ne5 0–0 10.0–0 Bd6 11.f4 Bc5 12.Qe1+=; 8...c5 9.Na2 Ba5 10.0–0 0–0 11.c4 a6 12.Qc2+=) 9.dc3 0–0 (9...c6 10.0–0 cb5 11.ab5 a6 12.c4+/–) 10.0–0 c6 (10...a6 11.c4 c6 12.cd5+=) 11.c4 (11.Qd4 Re8 12.c4+/–) 11...Qe7 (11...a6 12.cd5+=) 12.Qd3 (12.Qd4+/–) 12...Ne4 (12...dc4 13.Qc4 Rd8 14.Rfd1+/–) 13.Ba3 Nd6 14.e4! Qd8?? (14...de4 15.Qd6 Pinning (15.Qd6 Deflection); 14...Ne4 15.Be7 Pinning (15.Be7 Deflection)) 15.Bd6+– Re8 16.e5 f6 17.ef6 Qf6 18.Ne5 Bc8 19.Bh5 Nd7 (19...g6 20.Be2 Rd8+–) 20.Bf7 Kh8 21.Ng6 hg6 (21...Qg6 22.Bg6 hg6 23.Qg6 Nf6+–) 22.Qh3 Qh4 23.Qh4 1–0. Janek – Vesely, internet, 2016.

5.Nf3 e6 6.a4 Nf6 7.Nc3 Bd6 A) 8.Be2 Qe7 (8...0–0 9.0–0 e5 10.Ba3 Bg4 11.d4 Bf3 12.Bf3=; 8...e5 9.0–0 0–0 10.Ba3 Be6 11.d4 e4 12.Ne5=; 8...a6 9.ba6 Na6 10.Nb5 Be7 11.0–0 0–0 12.Ne5=) 9.d3 e5 10.0–0 0–0 11.Qd2 a6 12.ba6+=; B) 8.Ba3= Ne4 (8...Ba3 9.Ra3 Qe7 10.Rb3 e5 11.Be2 0–0 12.0–0=; 8...0–0 9.Bd6 cd6 10.Be2 Ne4 11.0–0 Nc3 12.dc3=; 8...a6 9.Bd6 cd6 10.Bd3 e5 11.Be2 0–0 12.0–0=) 9.Be2 Nc3 10.dc3 Ba3 11.Ra3 a6 12.Rb3=; C) 8.Rb1 e5 (8...0–0 9.d4 Bb4 10.Bd3 c5 11.dc5 Qa5 12.Qd2=) 9.Be2 0–0 10.0–0 c5 11.bc6 Nc6 12.Nb5=.

5.Nf3 e6 6.a4 Nf6 7.Be2 a6 =.

5.Nf3 Nf6 6.Nc3 e6 7.Be2 Be7 8.0–0 0–0 9.d3 c5 10.Re1 a6 11.a4 ab5 12.ab5 Ra1 13.Qa1 Qb6 14.Qa4 Na6 15.Ra1 Nc7 16.Qa7 Qa7 17.Ra7 Rb8 18.h4 Nb5 (18...Bb5!? 19.Nb5 Nb5=) 19.Nb5+= Bb5 20.Be5 Rc8? (better is 20...Re8 21.Rb7 Bc6+=) 21.Rb7+– 1–0. orane – tudor1, caissa.com, 2007.

4.e3 e6

5.a4 b6 6.c4 Bb7 7.Nf3 f6 8.Be2 c6 9.d4 Bd6 10.Nbd2 Ne7 11.0–0 Ng6 12.Nb3 h6 13.Qc2 f5 14.c5 bc5 15.dc5 Bf8 16.Ne5 Ne5 17.Be5 Rg8 18.Qc3 Nd7 19.Na5 Nc5 20.Nb7 Nb7 21.bc6 Nd6? (21...Nc5 22.c7 Qc8+–) 22.c7 Qc8 23.Qc6 Kf7 24.Bd6 Bd6 25.Qd6 a5 26.Bb5 Kf6 27.Bd7 Qf8 (27...Ra6 28.Bc8 Rd6 29.Bb7+–) 28.Qc6 (28.Qe6 Kg5 29.f4 Kh4 30.Qg6 d4 31.g3 Kh3 32.Qh5) 28...Qe7 29.c8Q Rac8 30.Bc8 Rc8 (30...Rd8 31.Rac1+–) 31.Qc8 g5 32.Rac1 h5 33.Rc7 Qd6 34.Qh8 (34.Qh8 Kg6 35.Qg7) 1–0. madik – khip, gameknot.com, 2009.

5.c4 c6 6.a4 Nf6 7.Nf3 Bd6 8.Be2 0–0 9.0–0 e5 (9...a6 10.Ne5=) 10.d4 (better is 10.Be5!? dc4 11.Bc4+/–) 10...e4= 11.Nfd2 Nbd7 12.Nc3 Bb4 13.Qb3 Ba5 14.bc6 bc6 15.Qc2 Ba6 16.cd5 Be2 17.Ne2 cd5 18.Nb3 Rc8 19.Qd1 Bc7 20.Ba3 Re8 21.Ng3 Nb6 22.Bc5 a6 23.Nf5? (23.Bb6 Bb6 24.Qe2 a5=) 23...Rb8 (23...Nc4 24.Nd2–/+) 24.Na5 Qd7 25.Ne7? (25.Ng3–/+) 25...Kh8?? (better is 25...Re7 26.Be7 Qe7–+) 26.Nac6 Ra8 27.Rb1 Nc8 28.Nc8 Qc8 29.Na7? Qe6 30.Rb7–/+ Bd8 31.Qb3 h6 32.Rb1 a5 33.Nb5 Nd7 34.Nc7 Bc7= 35.Rc7 Reb8 36.Rb7 Rb7–/+ 37.Qb7 Rb8 38.Qb8 Nb8 39.Rb8 Kh7 40.Rb5 Qg4–+ 41.Rb1 Qd7 42.Rb5+= Qc7 43.h3 f5 44.g3 h5 45.Kg2 g6 46.Bb6= Qc6 47.Ba5 Qa8 48.h4 Kh6 49.Rc5 Kg7 50.Rc7 Kh6 51.Rc5 g5 52.hg5 Kg5 53.Rb5 h4 54.gh4 Kh4 55.Bc7 Qg8 56.Bg3 Kg4 57.a5 Qa8 58.Rc5 Qb7 59.Rc7 Qa8 60.Rc5 Qb7 61.Rc7 Qb5 62.Rc5 Qe2 63.Rd5 Qa2 64.Rc5+/– Qe2 65.Re5 Qf3 66.Kh2 Qe2 67.Kg2 Qa6 68.Rc5 Qh6 69.Kf1 Qa6 70.Kg2 Qh6 71.Kf1 Qh3 72.Ke2 Qh5 73.Kd2 Qf7 74.Kc3+– Qa2 75.Kb4 Qb2 76.Kc4 Qa2 77.Kb5 Qb2 78.Kc6 Qb3 79.Kc7 Qf7 80.Kc6 Qe6?? 81.Kb7+– Qd7 82.Bc7 Qa4 83.a6 Qb3 84.Bb6 Qf7 85.Rc7 Qd5 86.Rc6 Qd7 87.Bc7 Qd5 88.a7 Qb3 89.Bb6 Qf7 90.Ka6 Qa2 91.Ba5 Qe2 92.Kb6 Qf2 93.a8Q Qe3 94.Qg8 Kf4 95.Qg7 Qb3 96.Kc7 Qa4 97.Bd2 Kf3 98.Rc3 Ke2 99.Qg2 1–0. mr5reasons1 (1630) – reniar (1640), gameknot.com, 2013.

5.Nf3 Bb4?? 6.Bg7+– f6 7.Bh8 Nh6 8.Bg7 (better is 8.Nd4 Kf7 9.Qh5 Kg8 10.Qh6 Kh8+–) 8...Nf5 9.Bh8 Kf7 10.Bd3 (better is 10.Nh4! Bd6 11.Qh5 Kg8+–) 10...Qh8 11.Bf5 ef5 12.Nd4 Nd7 (12...Qg8 13.Qf3 Ke8 14.a3+–) 13.Nf5 Nc5 14.Qh5 Ke6 15.Nd4 Kd6 16.c3 Ba5 17.0–0 Nd7 (17...Qg8 18.Qh4 Qg6 19.c4+–) 18.Na3 b6 (18...Nc5 19.c4 Qg8 20.cd5+–) 19.c4 (better is 19.e4 de4 20.Nc4 Ke7 21.Qd5+–) 19...Bd2 (19...Ne5 20.cd5 Bg4 21.Qh4+–) 20.cd5 (20.Qd5!? Ke7 21.Qa8 Ne5+–) 20...Bc3 (20...Ne5 21.Qe2 Bb4 22.Nc4 Kd7 23.Rac1+–) 21.Nc4 (21.Nf5 Kc5 22.Rfc1 Ne5 23.Rc3 Kd5 24.Rd1 Ke6 25.Rc7 Qf8 26.Nc4 Bd7 27.Rdd7 Nf3 28.Qf3 a6 29.Nd4) 21...Ke7 22.Nf5 (22.d6 cd6 23.Nc6 Kf8 24.Nd6 Qg8+–) 22...Kd8 23.Qf7 (better is 23.Rac1!? Bb4+–) 23...Ba1 (23...Qf8 24.Qf8 Nf8+–) 24.Qe7 1–0. Fournier,Frederic (1835) – puretrexa, Active, 2005.

5.Nf3 c6 6.bc6 Nc6 7.Bb5 Bd7 8.0–0 Bc5?? (better is 8...Nf6=) 9.Bg7+– Bd6 10.Bh8 f6 11.c4 Nh6 12.cd5 ed5 13.Nd4 Nd4 (13...Nf7 14.Bg7+–) 14.Bd7 (better is 14.Qh5!? Nf7 15.Bd7 Qd7 16.ed4 Be7+–) 14...Qd7 (14...Kd7 15.ed4 Qh8 16.Qb3+–) 15.Bf6 (better is 15.ed4 Ng4 16.h3 Kf7 17.hg4 Rh8+–) 15...Ndf5 16.Qh5 (16.Qh5 Qf7 17.Qf7 Kf7 18.Bb2+–) 1–0. Fournier,Frederic (1890) – eskakeo (1795), Active (5/0), 2005.

5.Nf3 Qd6 6.Ba3+= Qb6 7.Bf8 Kf8 8.c4 dc4 9.Bc4 Nd7 10.Nc3 Nc5 (10...Qc5 11.Qb3+/–) 11.d4 Nd7 12.0–0 Ndf6 13.Ne5 Ne7 14.Qf3 Rb8 (14...Ng6 15.Qg3+/–) 15.Bd3+– c6 (better is 15...Qa5 16.Ne4 Nf5+–) 16.Ne4 Nf5 17.bc6 bc6 (17...Ne4 18.Be4 bc6 19.Rfc1+– (19.Bc6?! f6 20.Qh5 Nd6 21.Ng6 Kg8 22.Ne7 Kf8 23.Nc8 Qc6 24.Na7 Qd7+–)) 18.Rac1 (better is 18.Nf6 gf6 19.Nc6+–) 18...Bb7 (18...Nd7 19.Nc6 Ra8+–) 19.Nf6 gf6 (19...Ke7 20.Nfd7 Qc7 21.Nb8 Rb8 22.Bf5 ef5 23.Qg3+–) 20.Nd7 (20.Nd7 Ke7 21.Nb6 ab6 22.Bf5 ef5 23.Qf5+–) 1–0. Heqexe – Stucer, internet, 2017.

5.Nf3 Qd7 6.c4 a6 7.cd5 Qd5 8.a4 c6 (8...Nf6 9.Nc3 Qd8 10.d4=) 9.Be2 Qb3?? (better is 9...Nf6+=) 10.Qb3+– (10.Qb3 Nf6 11.bc6 Nc6 12.d3+–) 1–0. eds – georgizk, Live Game Caissa's Web, 2004.

5.Nf3 Bd7 6.Ne5 Bc8 (6...Nf6 7.Be2=) 7.Bd3+= Nf6 8.0–0 Nbd7 9.f4 Ne5 10.fe5 Nd7 11.Qf3 Qe7 (11...f5 12.ef6 Nf6 13.Bf6 Qf6 14.Qh5 g6 15.Rf6 gh5 16.Nc3+=) 12.Be2 (12.Ba3 c5 (12...Ne5? 13.Qg3 c5 14.Qe5+–) 13.bc6 Ne5+–) 12...g6 (better is 12...c5!?+=) 13.Ba3 Ne5 (better is 13...Qg5 14.Qf7 Kd8 15.Bf8 Rf8 16.Qe6 Re8 17.Qd5 Qe5+–) 14.Qf4 Qd7 15.Qe5 f6 (15...Rg8 16.Bf8 Rf8 17.c4+–) 16.Qf6 (16.Rf6!? Bg7 17.Re6 Qe6 18.Qg7 Rg8 19.Qc7 d4+–) 16...Bg7 17.Qf4 (17.Qf3!? e5 18.Nc3 e4+–) 17...Ba1 (17...a6+–) 18.Qf8!! (18...Rf8 19.Rf8#) 1–0. abhijit (1830) – buddah (1930), net–chess.com, 2002.

5.Nf3 Ne7 6.c4 a6 7.Nc3 ab5 8.cb5 Nd7 9.Be2 Nb6 10.0–0 Nf5 11.a4 Nc4 (11...Bb4 12.Qb3 Ba5 13.Rfc1=) 12.Bc4+= dc4 13.Qe2 b6 (13...Qd3 14.e4 Nd6 15.e5+=) 14.Qc4+/– Bb7 15.Ne4 (15.e4 Nd6 16.Qe2+/–) 15...Be4 (better is 15...Qd5!? 16.Qd5 ed5+/–) 16.Qe4+– Bd6 (16...Qd5 17.Qc2 Qb7+–) 17.g4 Nh4? (17...Ne7 18.Bg7 Rg8 19.Qh7 Ra7+–) 18.Nh4 Qh4 (18...0–0 19.Nf3 Qe7+–) 19.Qa8 (19.Qa8 Ke7 20.Qg2+–) 1–0. Bonetti,Shane – aldam, ICC, 2002.

5.Nf3 Nf6 (--> 4.e3 Nf6 5.Nf3 e6).

5.f4 Ne7 6.Nf3 (6.Be2 a6=) 6...Ng6 (6...a6 7.Be2=) 7.Bd3+= Bd6 (7...a6 8.a4+=) 8.Bg6 (8.Bg7 Rg8 9.Bb2 Bc5+/–) 8...hg6+= 9.Bg7 Rh7 10.Be5 Be5 (10...a6 11.Bd6 Qd6 12.Nc3+=) 11.Ne5 (11.fe5 g5 12.g4 a6+=) 11...Nd7 (11...Qh4 12.g3 Qg3 13.hg3 Rh1 14.Ke2 Rd1 15.Kd1=) 12.d4 (12.Qf3!?+=) 12...Qh4= 13.g3 Qh3 (13...Qg3 14.hg3 Rh1 15.Ke2 Rd1 16.Kd1=) 14.Qe2 Ne5 15.de5 Bd7 16.Nc3 c6 17.bc6 Bc6 (18.Nb5 Kd7+/–; 17...bc6 18.0–0–0+/–). grower – zzz, Live Game Caissa's Web, 2005.

5.f4 Nf6 6.Nf3 =.

5.Nf3 a6

6.a4 Nf6 7.Be2 Bd6 8.0–0 0–0 9.Ne5 c5 10.f4 =.

6.ba6 Na6 7.Ne5 (7.Bb5 c6 8.Be2 Nf6 9.0–0 Bd6 10.Be5=) 7...Bd7 8.c4 Nf6 9.Nd7 Nd7 10.Nc3 =.

6.Nc3 Bd7 7.a4 (7.Bd3 ab5 8.Nb5 Nf6 9.Bf6 gf6 10.Nc3=) 7...a5 (7...Nf6 8.Bd3= c5 9.Ne5 c4 10.Be2=) 8.Bd3+= (8.Be2 Nf6 9.0–0 Bd6 10.Ba3+=) 8...b6 (8...Nf6 9.0–0+= Bc5 10.e4+=) 9.e4+/– c6 (9...Nf6 10.0–0+/–) 10.bc6 Bc6 11.ed5 Bd5 12.Nd5 Qd5 13.Bb5 Nd7 (13...Kd8!?+/–) 14.Ne5+– Ngf6 (14...Qe4 15.Kf1 Rd8 16.Nd7 Rd7 17.Bd7 Kd7 18.Qh5+–) 15.0–0 (better is 15.Bc6 Qc5 16.Qf3+–) 15...Bd6? (better is 15...Rc8+/–) 16.Bc6+– 0–0 (16...Be5 17.Bd5 Nd5 18.Be5 Ne5+–) 17.Bd5 (17.Bd7?! Be5 18.Be5 Qe5+= (worse is 18...Qd7 19.Bf6 gf6 20.Qg4 Kh8 21.Qf3+=)) 17...ed5 18.Nd7 Nd7 19.Bg7! Kg7 20.Qg4 Kh8 21.Qd7 Rad8 22.Qf5 f6 23.Rfe1 Be5 (23...Rf7+–) 24.Re5 fe5 25.Qe5 Kg8 26.Ra3 Rde8 (26...Rd6 27.Qd6 Rf5 28.Qe6 Kf8 29.Qf5 Ke7 30.Re3 Kd6 31.Qf6 Kc5 32.Rc3 Kb4 33.Qd4) 27.Rg3 Kf7 28.Rg7 1–0. marekt – AymanO, internet, 2008.

6.Nc3 Nf6 7.Be2 Bd6 8.ba6 Na6 9.Nb5 Be7 10.0–0 =.

6.Bd3 ab5 7.Bb5 Bd7 8.Be2 Nf6 9.0–0 Bc5 10.Be5 =.

6.Be2 ab5 7.Bb5 Bd7 8.Be2 Nf6 9.0–0 Be7 10.c4 =.

6.Ne5 ab5 7.Qh5 (7.Bb5 c6 8.Bd3 Nf6 9.0–0 Bd6 10.f4=) 7...Qe7 8.Bb5 Bd7 9.Nd7 Nd7 10.Nc3 =.

5.Nf3 Nd7

6.a3 Ngf6 7.c4 Be7 (7...Nb6 8.cd5 ed5 9.Be2 Bd6 10.Qc2 Bg4=; 7...Bd6 8.d4 a6 9.c5 Be7 10.Nc3 0–0=; 7...a6 8.ba6 ba6 9.Qa4 Bd6 10.cd5 ed5=) 8.cd5 ed5 9.Be2 0–0 10.Qc2 a6 =.

6.a4 Ngf6 7.Be2 Bd6 (7...Be7 8.0–0 0–0 9.d4 a6 10.Ba3 ab5=) 8.Ba3 Ba3 9.Na3 e5 10.0–0 e4 =.

6.Nc3 Ngf6 7.Bd3 e5 8.Bf5 Bd6 9.0–0 0–0 10.a4 Nb6 +=.

6.c4 dc4 7.Bc4 (7.Qc2 a6 8.ba6 b6 9.Bc4 Ba6 10.Ba6 Ra6=) 7...Nb6 (7...Ngf6 8.0–0 Nb6 9.Be2 Bd6 10.Be5 a6+=) 8.Be2 Ne7 (8...Nf6 9.0–0+= Bd6 10.Be5 a6+=) 9.0–0+= Bd7 (9...c6 10.a4 cb5+=) 10.Nc3 (10.a4 Nbd5+=) 10...Ng6 (10...Rc8+=) 11.a4 Bd6 (11...c6 12.a5 Nc8 13.a6+=) 12.a5 Nc8 13.a6 b6 (13...Rb8 14.Ne4 0–0 15.Qb3+/–) 14.Nd4 (14.Rc1 0–0+/–) 14...0–0 (14...e5 15.Nc6 Bc6 16.bc6+/–) 15.Qa4 (15.f4 e5 16.fe5 Be5+/–) 15...Qh4 (15...e5 16.Nc2+=) 16.f4+/– Qe7 (16...Nce7 17.Rac1+/–) 17.Bf3 Rb8 18.Bb7 (18.Rac1 e5 19.Nd5 Qh4+/–) 18...Bc5 19.Nc6 Bc6 20.Bc6 Qd6 (20...Qh4!?+/–) 21.d4+– Bb4 22.Ne4 (better is 22.f5 Bc3 23.Ba3+–) 22...Qd8?? (better is 22...Qe7+–) 23.Qb4 Nce7 24.Bb7 Nd5 (24...Qd7 25.Qc4+–) 25.Qb3 Nge7 26.Nd2 h6 (26...Nf6 27.e4+–) 27.e4 Nf6 28.Rf3 (28.d5 Ne8+–) 28...Qd7 (28...Ne8 29.Nc4+–) 29.Nc4 Nh7 (29...Qe8 30.Ne5 Qd8 31.Qc2+–) 30.Rg3 (better is 30.Ne5 Qd8+–) 30...Ng6 (30...f6 31.f5! Kh8 32.fe6 Qe6 33.d5+–) 31.d5 ed5 (31...Nf6 32.de6 Qe7 33.ef7 Kh7 34.e5+–) 32.Bd5 Ne7 (32...Kh8 33.f5 Ng5 34.Rg5 hg5 35.fg6 Qg4+–) 33.Rg7 Kh8 34.Rf7 Kg8 (34...Nf6 35.Bf6 Kg8 36.Qg3 Qg4 37.Qg4 Ng6 38.Qg6) 35.Rg7 Kh8 36.Rg8 1–0. pierred – kungen, internet, 2008.

6.c4 Ngf6 7.Nc3 Nb6 (7...dc4 8.Bc4 Bd6 9.d4 Nb6 10.Bd3 Nbd5+=; 7...Be7 8.cd5 ed5 9.Be2 0–0 10.0–0 Re8=) 8.cd5 ed5 9.a4 Bd6 10.a5 Nbd7 =.

6.c4 Ngf6 7.d4= a6 (7...Bb4 8.Bc3 Be7 9.Bd3 0–0 10.0–0 a6=; 7...Ne4 8.Bd3 Bb4 9.Nfd2 Nd2 10.Nd2 dc4+=) 8.ba6 ba6 9.Nc3 Rb8 10.Qc2 c5 =.

6.c4 Ngf6 7.Be2 Bd6 8.Nc3 0–0 9.d4 b6 10.cd5 ed5 11.Bd3 Re8 12.0–0 Re7 (12...Bb7 13.Qc2+=) 13.g3 (13.Qa4 Bb7+=) 13...h6 14.Qb3 Bb7 15.Rad1 a6 16.ba6 Ba6 17.Ba6 Ra6 18.Nd5 Nd5 19.Qd5 Nf6 (19...Qa8 20.Qa8 Ra8 21.a3+=) 20.Qc4 (20.Qb3 Qd7+/–) 20...Qa8+= 21.d5 Nd5?? (better is 21...Ra4 22.Qd3 Ne4+=) 22.Rd5+– (worse is 22.Qd5 Qd5 23.Rd5 Ra2+–) 22...Ra2 23.Bc3 (23.Be5 Rc2 24.Qb3 Rc5 25.Rd6 cd6 26.Bd6 Re8 27.Bc5 bc5+–) 23...Ra4 (23...Qa4 24.Qa4 Ra4 25.Rfd1+–) 24.Qd3 Ra3 25.Rc1 Qc6 (25...Re8 26.Kg2 f6+–) 26.Qd4 f6 (26...Rc3 27.Rc3 Qe8 28.Qd3+–) 27.Bb2 Qc1 (27...Qa8 28.Ba3 Qa3+–) 28.Bc1 Ra8 (28...Ra7+–) 29.Rd6 cd6 30.Qd5 Kh7 31.Qa8 1–0. mtrold1 – Daffodil, internet, 2001.

6.Bd3 Ngf6 A) 7.c4 a6 (7...Bd6 8.cd5 ed5 9.0–0 Nc5 10.Bc2 Bg4=; 7...Nc5 8.Be2 dc4 9.Bc4 a6 10.ba6 b6=) 8.ba6 ba6 9.cd5 ed5 10.0–0 Rb8=; B) 7.0–0 Bd6 8.Ba3 Ba3 9.Na3 Qe7 10.Nb1 e5=; C) 7.Qe2 Bd6 8.0–0 0–0 9.Re1 e5 10.e4 Re8+=; D) 7.Ne5 Ne5 8.Be5 Bd6 9.f4 a6 10.ba6 ba6=.

6.Be2 Ngf6 7.0–0 Bd6 8.c4 dc4 9.Bc4 b6 (9...0–0 10.d4=) 10.Nc3 Bb7 11.d4 0–0 12.Qe2 Ng4 13.e4 c5 14.bc6 Bc6 15.h3 Nh6 16.Rad1 White prepares the advance d5 16...Qc7 (16...Re8 17.Nb5 Bf4 18.Ne5 Ne5 19.de5+/–) 17.d5+/– ed5 18.Nd5 Bd5 19.Rd5 Rae8? (better is 19...Rfc8!? 20.Qd2 Nc5+–) 20.Rfd1+– (20.Rfd1 Ne5 21.Ne5 (21.Rd6?! Nc4 22.Rd7 Qc6+=) 21...Be5 22.Ba3+–) 1–0. Fritz 11 – anony, internet, 2013.

6.Be2 Ngf6 7.0–0 Bd6 8.d4 0–0 9.c4 dc4 10.Nbd2 Nb6 =.

6.Be2 Ngf6 7.0–0 Be7 8.a4 0–0 9.d4 c5 10.c4 dc4 +=.

4.e3 Bf5

5.c4 e6 6.a3 Nf6 7.Nf3 Nbd7 8.d4 b6 (8...dc4 9.Bc4 Bd6 10.0–0=) 9.Bd3 (9.Nc3 Bd6+=) 9...Bd3= 10.Qd3 Ne4 (10...a6 11.cd5 ed5 12.Nc3=) 11.Nc3 Ndf6 (11...Nc3 12.Qc3 dc4 13.Qc4+=) 12.0–0 (12.Ne5 Nc3 13.Qc3 Bd6+=) 12...Be7 (12...a6 13.cd5 ed5 14.ba6 Nc3 15.Bc3+/–) 13.Ne5 Nc3 14.Bc3 Ne4 (14...a6 15.ba6 0–0 16.Rfc1+=) 15.Nc6 Qd7 16.Ne7 (16.Bb4 Bd6+/–) 16...Qe7 17.Bb4 Qd7 18.a4 (18.cd5 ed5 19.Rfc1 Ng5+/–) 18...a5 (18...c6 19.a5 c5 20.Ba3+=) 19.ba6! Qc8 (19...Ra6 20.cd5 Decoy) 20.a5 (20.cd5 ed5 21.a5 Ra6+/–) 20...Ra6 (20...Qa6 21.Qb1 Qb7 22.cd5 ed5 23.Rc1+/–) 21.ab6 (21.cd5 ed5 22.Rfc1 Kd7+/–) 21...Rb6 22.Rfb1 Qd8 (22...Qb8 23.c5 Rb5 24.c6+/–) 23.c5 (23.Qc2 c6 24.cd5 ed5 25.Ra7+–) 23...Rb8+/– 24.c6 Nd6 (24...Rc8+/–) 25.Ba5 (25.Bd6 cd6 26.Rb8 Qb8 27.c7+–) 25...Rb1 (25...0–0 26.Bb4+=) 26.Rb1+/– 1–0. mtr – amt, internet, 2001.

5.d4 Nf6 6.Nf3 e6 7.Nbd2 c6 8.a4 Bb4 9.c3 Be7 10.Qb3 Qc7 11.c4 0–0 12.Be2 Nbd7 13.h3 h6 14.0–0 Rfc8 15.Rfc1 Qd8 16.c5 Kh8 17.Ne5 (better is 17.a5!?+=) 17...Ne5+= 18.de5 Nd7 19.Bd4 cb5 20.Qb5 a6 Increasing the pressure on the isolated pawn on c5 21.Qb7 Rcb8 22.Qc6 Rc8 23.Qb7 Rcb8 24.Qc6 Rc8 ½–½. Ocko,Martin (1735) – Puskar,David (1705), Stara Lubovna SVK, Ch U14 (b), 2013.

5.Nf3 Nd7 6.c4 dc4 7.Bc4 Nc5 8.d4 Ne4 9.0–0 e6 10.Ne5 Bd6 (better is 10...Qg5!?+=) 11.f3+/– Be5 12.fe4 Bh2 13.Kh2 Be4 14.Nd2 Qh4 15.Kg1 Qh6?? (better is 15...Bd5+–) 16.Ne4 Qe3 17.Nf2 Nf6 18.Rc1 0–0 (18...Qg5 19.Qf3 0–0–0 20.Nd3+–) 19.Rc3 Qg5 20.Qc2 (better is 20.Bc1 Qf5+–) 20...Qf4 (20...Nd5 21.Ne4 Qd8 22.Bd5 Qd5+–) 21.Rf3 Qg5 22.Bc1 Qg6 (22...Qh4 23.g4! Rad8 24.Rh3 Qh3 25.Nh3 Rd4 26.g5+–) 23.Bd3 Qh5 24.Rh3 Qh3 25.Nh3 h6 (25...Rad8 26.Rf6! gf6 27.Qf2 Rfe8 28.Bh6 Rd5 29.Qf6 Rg5 30.Qg5 Kh8 31.Qg7#) 26.Rf6! g6 (26...gf6 27.Bh7 Double attack) 27.Bh6 Rfd8 28.Qc7 Kh7 (28...Rf8 29.Rg6! Kh8 30.Bg7 Kh7 31.Bf6 Rfc8 32.Qf7#) 29.Qf7 Kh6 30.Qg6# 1–0. marekt – johnny_l, ChessWorld.net, 2012.

5.Nf3 e6 6.c4 Nf6 (withdrawal, 0–1). Brinkmann,Wilhelm – Michalakis, corr 3GMM–41, 1995.

5.Nf3 e6 6.Be2 =.

5.Nf3 Nf6 6.c4 e6 7.d4 Bb1 8.Rb1 Bb4 9.Nd2? (9.Ke2 dc4 10.Rc1 0–0=) 9...0–0 (better is 9...Ne4 10.Bc1 Nc3–/+) 10.a3 Be7 11.c5 Nbd7 12.Bd3 h6 13.Nf3 Nh7 14.0–0 Ng5 15.Ng5 Bg5 16.f4 Be7 17.Qg4 f5 18.Qg6 Rf6 19.Qh5 Rf8 20.Rf3 Nf6 21.Qg6 Qe8 22.Rg3 Qg6 23.Rg6 Kh7 24.Rg3 Ne4 25.Be4 fe4 26.Rf1 Bh4 27.Rg4 Be7 28.Rg3 Rf5 (28...a6 29.ba6 Ra6 30.Rc1+=) 29.a4 b6 (29...Raf8 30.Rh3+=) 30.c6 (30.Rc1!?+=) 30...a6= 31.Ra1 ab5 32.ab5 Ra1 33.Ba1 Rf8 34.h4? (better is 34.Bc3–/+) 34...Bh4 (34...Ra8!? 35.Bc3 Ra3 36.Bd2–+) 35.Rh3 Be7 (35...Be1 36.Kf1 Bb4 37.Bb2–+) 36.g4 g6 37.g5 (37.Bc3!?–+) 37...h5 38.Rh2 Ra8 39.Bc3 Ra3 40.Bd2 Ra1 41.Kf2 Ra2 42.Ke1 Kg7 43.Re2 Kf7 44.Bc1 Bb4 (44...Ra5 45.Kf2 Rb5 46.Rc2–+) 45.Kd1 Re2 (better is 45...Ra1 46.Kc2 Ra5–+) 46.Ke2–/+ h4 47.Kf1 Ke7 48.Kg2 Be1 49.Kh3 Bg3 50.Kg4 Bf2 51.Bd2 Kf7 52.Bc1 ½–½. Fournier,Frederic (2005) – Almeidav (1955), Active, 2004.

5.Nf3 h6 6.Nd4 Bh7 7.Be2 Nf6 8.0–0 e6 9.c4 Bc5 10.cd5 Nd5 (worse is 10...Qd5 11.Bf3 Be4 12.Nc3+–) 11.Nc3 (better is 11.Nb3 Bf8 12.Nc3+=) 11...Qh4 (better is 11...Bd4 12.ed4 0–0=) 12.Nd5+/– ed5 13.Nf3 Qe7 (13...Qg4 14.Qb3 Qe6 15.Qc3+/–) 14.Bg7+– Rg8 15.Bh6 Nd7 16.Qb3 0–0–0 (16...Nb6 17.Bf4+–) 17.g3 (17.d4 Rg6 18.Bf4 Bd6 19.Bd6 Qd6+–) 17...Bb6 (17...Nb6 18.Bf4+–) 18.Qd5 Nf6? (18...Be4 19.Qh5+–) 19.Qc4 (19.Qe5!? Qe5 20.Ne5 Rd2+–) 19...Be4 20.d3 Bd5 21.Qf4 Kb8 (21...Qe6 22.Bg5 Nh5 23.Qh4+–) 22.Rfc1 (22.Qe5 Qe5 23.Ne5 Ba5+–) 22...Nh5 (22...Ng4 23.Bg5 f6 24.Qg4 fg5 25.d4+–) 23.Qe5 Nf6 (23...Qe5 24.Ne5 f6+–) 24.Qe7 Rd7 25.Qf6 Be6 26.Ne5 Rd6 27.Nf7 Bh3 28.Nd6 cd6 29.Qd6 Ka8 30.Bf3 Rd8 31.Bb7! Kb7 (31...Kb7 32.Qc6 Mate attack) 32.Qc6 Kb8 33.Bf4 (33.Bf4 Rd6 34.Qd6 Bc7 35.Qc7 Ka8 36.Qc6#) 1–0. kwuk – tesy, internet, 2009.

4.e3 f6

5.Ba3 a6 A) 6.ba6 Na6 7.Nf3 e5 8.Bb5 c6 9.Bf8 Kf8=; B) 6.c4 e5 7.Bf8 Kf8 8.ba6 Na6 9.cd5 Qd5=; C) 6.Bd3 Nh6 7.ba6 Na6 8.Nc3 e5 9.Bf8 Kf8=; D) 6.Qf3 ab5 (6...Nh6 7.c4 dc4 8.ba6 Na6 9.Bc4 c6=; 6...f5 7.ba6 Na6 8.d4 Nf6 9.Bd3 Ne4=; 6...g6 7.c4 d4 8.ed4 ab5 9.Qc3 bc4=) 7.Bb5 c6 8.Bd3 Nh6 9.e4 Nd7=; E) 6.Nf3 Nh6 (6...ab5 7.Bb5 c6 8.Be2 Nd7 9.0–0 e5=; 6...Bg4 7.h3 Bd7 8.ba6 Na6 9.Bd3 e6=; 6...c6 7.ba6 Na6 8.c4 Bg4 9.Qb3 Bf3=) 7.ba6 Na6 8.d4 Bg4 9.h3 Bf5=.

5.Ba3 Bf5 A) 6.Nf3 Nh6 (6...Nd7 7.Nd4 Nh6 8.Nf5 Nf5 9.Bd3 e6+=) 7.d4 a6 8.ba6 Na6 9.c4 e5=; B) 6.c4 dc4 7.Bc4 Bd3 8.Bd3 Qd3 9.Nc3 a6+=.

5.Ba3 Nh6 A) 6.d4 Bg4 (6...Bf5 7.c4 c6 8.Nc3 Qa5 9.Qb3 e5+=; 6...c6 7.c4 Bg4 8.Qb3 e5 9.Bf8 Rf8+/–) 7.Be2 Be2 8.Ne2 Qd7 9.0–0 Qb5=; B) 6.Nf3 Bf5 (6...a6 7.ba6 Na6 8.d4 Bg4 9.h3 Bh5=; 6...e5 7.Bf8 Rf8 8.Be2 Nf5 9.0–0 a6=; 6...Bg4 7.Be2 e5 8.Bf8 Rf8 9.0–0 Qd6=) 7.d4 a6 8.ba6 Na6 9.c4 e5=; C) 6.c4 e5 (6...d4 7.ed4 Qd4 8.Nc3 e5 9.Nf3 Qb6+=; 6...Bg4 7.Qb3 d4 8.Bd3 de3 9.de3 Nd7+=) 7.Bf8 Rf8 8.cd5 Qd5 9.Qc2 Qf7+=.

5.Nc3 e5 6.d4 Bd6 (6...ed4!? 7.Qd4 Be6= 8.Nf3 a6 9.Qa4 Qd6+=) 7.Nd5+/– Be6 (7...c6 8.de5 fe5 9.Nc3 Nf6+/–) 8.de5 Be5 (8...fe5 9.Bc4 c6+/–) 9.Be5 fe5 (9...Bd5+–) 10.Qh5 Kf8 11.Nc3 Nd7 12.Qf3 Ngf6 13.Qb7 Kf7 14.Nf3 Re8 15.Ng5 Kg6 16.Ne6 Re6 17.Qf3 e4 (17...Nc5 18.Bc4 Rd6 19.Qg3 Kh6 20.Bf7+–) 18.Qg3 Kf7 19.Bc4 (19.Bc4 Nf8 20.Rd1+–) 1–0. pierred – kingmo, internet, 2008.

5.Nc3 Bf5 6.Qh5 g6 7.Qf3 c6 8.bc6 bc6 9.e4 de4 =.

5.c4 A) 5...e5 6.cd5 (6.d4 ed4 7.Bd4 dc4 8.Bc4 c5 9.bc6 Nc6+=) 6...Qd5 7.Nc3 Qd8 8.Nf3 Bd6 9.d4 Ne7+=; B) 5...e6 6.Bd3 (6.d4 a6 7.Bd3 Nh6 8.Qa4 dc4 9.Bc4 c6=; 6.Nc3 Ne7 7.d4 a6 8.Nf3 ab5 9.cb5 Nd7+=; 6.Qh5 g6 7.Qf3 a6 8.cd5 Qd5 9.Nc3 Qd8+=; 6.Nf3 a6 7.cd5 ed5 8.Nd4 Ne7 9.Qa4 c6=) 6...Nh6 (6...g6 7.Nc3 Ne7 8.Nf3 a6 9.cd5 Nd5+=) 7.Nc3 d4 8.ed4 Qd4 9.Qe2 Qd7+=.

5.d4 Bf5 A) 6.Ba3 a6 (6...c6 7.c4 Be4 8.f3 Bf5 9.bc6 bc6+=) 7.ba6 Na6 8.Bd3 Bd3 9.Qd3 c6=; B) 6.c4 e6 7.Nf3 a6 8.Qb3 Ne7 9.ba6 b6+=; C) 6.Be2 e6 (6...c6 7.c4 cb5 8.cd5 Qd5 9.Nc3 Qd8+/–; 6...a6 7.Nf3 e6 8.Nh4 Nh6 9.0–0 ab5=) 7.Nf3 a6 8.Nh4 Nh6 9.0–0 ab5=; D) 6.Nf3 e6 7.c4 a6 8.Qb3 Ra7 9.Nc3 Ne7+=.

5.Be2 A) 5...e5 A1) 6.Nf3 a6 (6...Bd6 7.c4 e4 8.Nd4 Ne7 9.cd5 Nd5+=; 6...Be6 7.0–0 Bb4 8.d4 e4 9.Nfd2 a6+=) 7.a4 Bd6 8.Nc3 Ne7 9.0–0 Be6=; A2) 6.d4 ed4 (6...e4 7.c4 Be6 8.cd5 Qd5 9.Nc3 Bb4+=; 6...Bd6 7.de5 Be5 8.Be5 fe5 9.c4 Nf6+=; 6...Bb4 7.c3 Ba5 8.Qa4 Bb6 9.c4 ed4+=) 7.Bd4 a6 8.Nf3 ab5 9.Bb5 Bd7=; B) 5...a6 B1) 6.f4 Nh6 (6...ab5 7.Bb5 c6 8.Be2 Nd7 9.Nf3 Qc7=; 6...Bf5 7.Nf3 Nh6 8.Nd4 ab5 9.Bb5 c6=) 7.Nf3 ab5 8.Bb5 Bd7 9.Be2 e6=; B2) 6.Nf3 ab5 (6...e5 7.a4 ab5 8.ab5 Ra1 9.Ba1 Bd6=) 7.Bb5 c6 8.Be2 e5 9.0–0 Bd6=; B3) 6.ba6 Na6 7.Ba3 e5 8.Bf8 Kf8 9.Nf3 Kf7=; B4) 6.Nc3 ab5 (6...e5 7.d4 e4 8.ba6 ba6 9.Rb1 Be6=) 7.Bb5 c6 8.Be2 e5 9.Nf3 Bd6+=; B5) 6.d4 e6 (6...Bf5 7.Nf3 ab5 8.Nh4 Nh6 9.Nf5 Nf5=) 7.Nf3 ab5 8.Bb5 Bd7 9.Bd3 Nc6=; C) 5...Nh6 C1) 6.c4 dc4 (6...e5 7.d4 ed4 8.Qd4 Be6 9.cd5 Qd5+=) 7.Bc4 e5 8.d4 ed4 9.Qd4 Qd4=; C2) 6.d4 a6 (6...Bf5 7.Nf3 a6 8.c4 dc4 9.Bc4 ab5=; 6...e6 7.c4 a6 8.Qa4 c6 9.Nf3 dc4=; 6...c6 7.Nf3 Bg4 8.c4 dc4 9.Bc4 Nf5+=) 7.Nf3 ab5 8.Bb5 Bd7 9.Bd3 e6=; C3) 6.f4 a6 (6...Bf5 7.Nf3 e6 8.0–0 Bc5 9.Nd4 0–0+=) 7.Nf3 ab5 8.Bb5 Bd7 9.Be2 e6=; C4) 6.Nf3 e5 7.0–0 Be6 8.d4 e4 9.Nfd2 a6+=; D) 5...Bf5 6.c4 e5 (6...e6 7.cd5 ed5 8.Nc3 a6 9.Qb3 Ne7+=; 6...dc4 7.Bc4 Bd3 8.Qb3 Bc4 9.Qc4 a6=) 7.cd5 Ne7 8.d4 e4 9.Ba3 Nd5=.

5.Nf3 Nd7 6.Be2 Ngf6 7.0–0 Bd6 8.c4 dc4 9.Bc4 b6 (9...0–0 10.d4=) 10.Nc3 Bb7 11.d4 0–0 12.Qe2 Ng4 13.e4 c5 14.bc6 Bc6 15.h3 Nh6 16.Rad1 Qc7 (16...Re8 17.Nb5 Bf4 18.Ne5 Ne5 19.de5+/–) 17.d5+/– ed5 18.Nd5 Bd5 19.Rd5 Rae8? (better is 19...Rfc8!? 20.Qd2 Nc5+–) 20.Rfd1+– (20.Rfd1 Ne5 21.Ne5 (21.Rd6?! Nc4 22.Rd7 Qc6+=) 21...Be5 22.Ba3+–) 1–0. Fritz 11 – anony, internet, 2013.

5.Nf3 e5 A) 6.Be2 a6 (6...Bd6 7.c4 dc4 8.Bc4 a6 9.Qb3 Nh6=; 6...Be6 7.0–0 Nh6 8.d4 e4 9.Nfd2 a6+=; 6...Bb4 7.0–0 Ne7 8.c4 Be6 9.d4 e4+=) 7.ba6 Na6 8.0–0 Be6 9.d4 e4=; B) 6.c4 Ne7 (6...Be6 7.cd5 Bd5 8.Nc3 Ne7 9.Nd5 Nd5+=; 6...c6 7.Nc3 Be6 8.d4 e4 9.Nd2 dc4+=; 6...e4 7.Nd4 Ne7 8.Qh5 g6 9.Qh4 Bg7+/–) 7.d4 e4 8.Nfd2 f5 9.Qh5 g6+=.

5.Nf3 Bg4 A) 6.Be2 e5 (6...Nh6 7.c4 dc4 8.Bc4 e5 9.Nc3 a6=) 7.Nc3 Ne7 8.0–0 a6 9.ba6 Na6=; B) 6.d4 e6 (6...a6 7.h3 Bf5 8.Nh4 Nh6 9.Nf5 Nf5+=) 7.Bd3 a6 8.h3 Bh5 9.0–0 ab5=; C) 6.h3 Bh5 7.d4 e6 8.c4 a6 9.c5 e5=.

5.Nf3 Nh6 A) 6.d4 Bg4 (6...Bf5 7.c4 e6 8.Qb3 Qd7 9.Nc3 c6+=) 7.c4 e6 8.Bd3 a6 9.Qb3 Bf3+=; B) 6.Be2 Bg4 (6...e5 7.c4 e4 8.Nd4 dc4 9.Bc4 Nf7+=) 7.d4 e6 8.c4 c6 9.0–0 dc4+=; C) 6.c4 e5 7.cd5 Qd5 8.Nc3 Qd8 9.d4 ed4+=.

4.e3 Nf6

5.c4 dc4 6.Bc4 e6 7.Nf3 c6 8.0–0 Be7 9.bc6 Nc6 10.Bb5 Qb6 11.Bc6 Qc6 12.Nc3 0–0 13.Ne5 Qb6 14.Rb1 Qc5 15.Nd3 (15.d4 Qa5+=) 15...Qc7 16.Rc1 Rd8 (16...Qd6 17.Ne1+=) 17.Ne4 Qd7 18.Nf6 Bf6 (18...gf6 19.Qg4 Kh8 20.Rc3=) 19.Bf6+= gf6 20.Rc3 e5 21.e4 b6 22.Qc2?? (better is 22.Re1!?+=) 22...Bb7 (22...Ba6 23.Nb4 Bf1 24.Nd5–+) 23.f3? (better is 23.Rc7 Qd3 24.Qd3 Rd3 25.Rb7 Rd2 26.a3+=) 23...Ba6–+ 24.Rc1? (24.Nf2 Bf1 25.Kf1 Qd2 26.Ng4–+) 24...Bd3 25.Qb2 Rac8 26.Rc8 Rc8 27.Rc8 Kg7 (better is 27...Qc8 28.g4 Be4 29.fe4 Qg4 30.Kf2 Qf4 31.Kg1 Qe4–+) 28.Rc1 Kg6 29.Rc3?? (29.Re1 Kg7+–) 29...Ba6 (29...Qd4 30.Kh1 Qf2 31.Qa1 Bf1 32.Qf1 Qf1) 30.Qc1 f5 31.ef5 Qf5 32.Qc2 Qc2 33.Rc2 Bd3 34.Rc3 Bf5 35.Kf2 b5 (35...Be6 36.a3+–) 36.Ra3 Bd3 (36...h6+–) 37.Rd3 1–0. Valpa – Ama49, playchess.de, 2004.

5.Be2 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 e6 9.Qc1 Be7 10.Qb2 0–0 11.h4 (11.Nf3 Bd6=) 11...Nbd7 12.h5 h6 13.Nf3 Bd6 14.g4 e5 15.g5 hg5 16.Ng5 Nb6 17.Rg1 (17.h6!?+=) 17...Ng4+= 18.Nf3 (18.Bg4? Qg5 19.h6 Bg4 20.hg7 Ra8–+ (20...Qg7?! 21.f3 f5 22.fg4–/+; 20...Kg7?! 21.Qb3–+)) 18...Qf6 19.d3 Bd7 20.Nc3 Ra8 21.Nd1 Qh6 22.Nd2 Qh5 23.Nf1 Ra4 24.Ng3 Qh3 25.c3 (25.Rh1 Qg2 26.Bf1 Qf3–/+) 25...e4 26.Bf1 Qh4 27.Qb1? (27.de4 Nf2! 28.Nf2 Bg3 29.Rg2–+) 27...Nf2! (27...Nf2 28.Kf2 Qh2 29.Ke1 Bg3 30.Rg3 Qg3 31.Kd2 Bg4–+) 0–1. Wilshusen,Horst (2110) – Wolkenstein,Eckhardt (2175), BdF, 2007.

5.Be2 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 Nbd7 9.f4 e6 10.Nf3 Bc5 11.0–0 0–0 12.c4 dc4 13.Bc4 Nb6 14.Qc2 Nc4 15.Qc4 Qd5 16.Rc1 Bd6 17.Bf6 Qc4 18.Rc4 gf6 19.Nc3 f5 (19...f5 20.e4 fe4 21.Ne4 Kg7+/–). pcmvr – Klaus Behrmann, ChessWorld.net, 2003.

5.Nf3 a6 6.ba6 ba6 7.c4 Nc6 8.cd5 Qd5 9.Nc3 Qd6 10.Be2 e5 11.0–0 Be7 12.Qc2 0–0 13.Rfd1 e4 (better is 13...Rb8!?=) 14.Ne4+/– Ne4 15.Qe4 Qh6? (better is 15...Rb8 16.Rdb1 Rb6+/–) 16.Rac1+– Bb7 17.Qc2?? (better is 17.Rc6 Qc6 18.Qe7+–) 17...Qf6?? (17...Nb4 18.Qb1 Bd5+–) 18.Bf6+– Bf6 19.d4 1–0. Fournier,Frederic (1790) – GMjuancarlos07 (1770), Active, 2004.

5.Nf3 c5 6.c4 Bg4 7.Be2 e6 8.0–0 Be7 9.d3 Nbd7 10.Nbd2 0–0 11.a4 a5 12.h3 Bf3 13.Bf3 b6 14.Qc2 Qc7 15.g3 Rad8 16.Rfe1 Ne5 17.Be5 Qe5 18.Rad1 Qc7 19.Bg2 Bd6 20.f4 h5 (20...d4 21.ed4 cd4 22.Re2=) 21.Nf3 Rfe8 22.e4 (22.cd5 Nd5 23.Qc4 Ne7+=) 22...de4= 23.de4 e5 24.f5 Be7 25.Qe2 g6 (25...Bd6 26.Qe3=) 26.fg6 fg6 27.Ng5 Qc8 28.Qe3 Rd4 29.Nf3 Re4 30.Qh6 Re1 (30...Qf5 31.Rf1 Bf8+– (31...Rc4?? 32.Ng5 Qg5 33.Qg5+–)) 31.Re1+– (worse is 31.Ne1 Qf5+=) 31...Qf5 32.Re5 (worse is 32.Ne5 Bf8 33.Qf4 Bd6 34.Qf5 gf5–/+) 32...Qb1 33.Re1 Qf5 (33...Bf8 34.Qf8!! Kf8 35.Rb1 Ne4+–) 34.Nh4 (better is 34.Ng5 Qg5 35.Qg5+–) 34...Qd3 35.Qg6 (better is 35.Ng6 Qg3 36.Re3 Qe3 37.Qe3+–) 35...Qg6+/– 36.Ng6 Kf7? (better is 36...Bd6 37.Re8 Ne8+/–) 37.Bc6+– (37.Re7?! Re7 38.Ne7 Ke7+–; 37.Ne7?! Re7 38.Re7 Ke7+–) 37...Rg8 (37...Bd6 38.Be8 Ne8 39.Nh8 Kf8 40.Kf2+–) 38.Ne7 (38.Re7?! Kg6 39.Rb7 Kf5+–) 38...Rg3 39.Kh2 Ra3 40.Nd5 Nd5 41.Bd5 Kf8 42.Re6 Ra4 43.Rb6 h4 44.Ra6 Ra2 45.Kg1 Ke7 (45...Ra1 46.Kf2 Ra2 47.Kf3+–) 46.b6 Kd8 (46...Ra1 47.Kf2 Ra2 48.Kf3 Ra3 49.Kg4+–) 47.b7 Ra1 48.Kg2 Kc7 49.Ra8 Ra2 1–0. Valles Calvo,Luciano – Martinez Huerta,Faustino, Asturias Preferente–chT, 1997. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Nc6 4.b5 Nb8 5.e3 c5)

5.Nf3 c6 6.Bd3 (6.Be2 cb5 7.Bb5 Bd7=) 6...Bg4 7.0–0 c5 (7...e6 8.Nc3=) 8.c4 (8.h3 Bh5=) 8...e6= 9.cd5 (9.h3 Bh5=) 9...ed5 10.Re1 (10.Nc3=) 10...Bd6 (10...Be7!?=) 11.e4+/– de4 (11...Be7 12.Bf6 Bf6 13.ed5 Kf8 14.Nc3+/–) 12.Be4 Ne4 13.Re4 Be7?? (better is 13...Be6 14.Bg7 Rg8+/–) 14.Rg4+– 0–0 (14...Bf6 15.Re4 Kf8 16.Bf6 Qf6+–) 15.Rg7 (15.Rg7 Kh8 16.Qc2 f5 17.Re7 Rf6 18.Bf6 Kg8 19.Qc4 Qd5 20.Qd5 Kf8 21.Qf7#) 1–0. b4_player – opponent, gamecolony.com, 2008.

5.Nf3 Qd6 6.a4 g6 (6...Bg4 7.Be2=) 7.c4+= Ne4?? (better is 7...Bg7+=) 8.Bh8+– f6 9.Nc3 (9.a5 Kf7 10.c5 Nc5+–) 9...Kf7 10.Nd5 e6 (10...Kg8 11.Qc2 Nc5+–) 11.Nf6! Nf6 12.Ng5 Ke7 (12...Kg8 13.Bf6 c5 14.h4+–) 13.Bf6 Ke8 14.Nh7 Bg7 (14...e5 15.d4 Qb4 16.Qd2 Qd2 17.Kd2 ed4 18.Bd4 Bb4 19.Bc3 Bc3 20.Kc3+–) 15.Bg7 (better is 15.Qc2!? Bf6 16.Qg6 Ke7 17.Qf6 Kd7 18.Qg7 Ke8 19.Nf6 Kd8 20.Qg8 Ke7 21.Qe8 Kf6 22.Qc8 b6+–) 15...Kf7 (15...Qe7 16.Be5 Qh7 17.Qg4+–) 16.Bc3 (16.Bc3 Nd7 17.Qf3 Ke8 18.Nf6 Kd8 19.Nd7 Kd7 20.Qf7 Qe7 21.Qg6+–) 1–0. forsetinn (1735) – gingerphoenix, gameknot.com, 2013.

5.Nf3 Nbd7 6.c4 e5 7.Ne5 Bd6 (better is 7...Ne5 8.Be5 Be6+=) 8.Nf7?? (better is 8.Nd7 Bd7 9.Qf3+/–) 8...Kf7–/+ 9.cd5 Nd5?? (better is 9...Re8–/+) 10.Qh5+– Kg8 11.Qd5 Kf8 12.Bc4 Qe7 13.Qf3 Nf6 (13...Ke8 14.Qh5 g6 15.Qh6+–) 14.Nc3 Be6 (14...c6 15.Qe2 Bg4+–) 15.Qb7 Kf7 16.Be6 Qe6 17.Qf3 Rhe8 18.0–0 (18.d3 Kg8+–) 18...Kg8 19.h3 Rad8 (19...Qe5 20.Qg3! Qg3 21.fg3 Bg3 22.Rf3+–) 20.d4 Ne4 (20...Rb8 21.Rab1+–) 21.Ne4 Qe4 22.Qe4 Re4 23.a4 c5 (23...Kf7 24.Ba3+–) 24.bc6 Rc8 (24...Bc7 25.Rac1+–) 25.d5 Rb8 (25...Rc7 26.Bd4+–) 26.Bd4 Be5 (26...a6 27.Rab1 Ree8 28.f3+–) 27.Be5 Re5 28.c7 (28.c7 Rf8 29.d6+–) 1–0. pumpkin (2015) – gbsr (2175), net–chess.com, 2003. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Nc6 4.b5 Nb8 5.e3 Nbd7)

5.Nf3 Nbd7 6.c4 e6 7.d4 Be7 (7...Ne4 8.Ba3=) 8.Nbd2 (8.Bd3 dc4 9.Bc4 0–0=) 8...0–0 9.Be2 dc4 (9...a6 10.ba6 b6 11.Ne5=) 10.Bc4 c6 (10...Nb6 11.0–0=) 11.a4 (11.bc6 bc6 12.Rb1 c5+=) 11...cb5= 12.ab5 b6 (12...Nd5 13.0–0+=) 13.Qb3 Bb7 (13...Nb8 14.0–0+=) 14.Ba3 (14.0–0 Bd5+=) 14...Bd5 (14...Ba3 15.Ra3 Bd5 16.0–0+=) 15.Be7 (15.Bd5 Nd5 16.0–0 Ba3 17.Qa3 a6+=) 15...Qe7 16.0–0 Rfe8 (16...Rfc8 17.Rfc1+=) 17.Bd5 ed5 18.Nc4?? (better is 18.Rfc1+/–) 18...dc4–+ 19.Qc4 Rac8 20.Qd3 Nf8 (20...Rc7 21.Qf5–+) 21.Ra2 (21.Rfd1 Ne4–+) 21...Ng6 (21...Nd5 22.Qf5 Nc3 23.Rd2–+) 22.Rfa1 Rc7 23.d5 (23.Rc2 Rc2 24.Qc2 Ne4–+) 23...Qd6 (23...Rd7 24.Nd4 Ne5 25.Qb1–+) 24.e4? (24.Ra7 Ra7 25.Ra7 Rc8–+) 24...Ne5 (24...Ne4 25.Ra7 Ra7 26.Ra7–+) 25.Qe3? (better is 25.Ne5 Re5 26.Ra7 Ra7 27.Ra7–+) 25...Nf3 26.gf3 (26.Qf3 Re4 27.Qg3 Qe7–+) 26...Ree7 (26...Nd5 27.Qb3 Qg6 28.Kf1–+) 27.Ra4?! (27.Qa3 Rc5–+) 27...g6 (27...Nd5 28.Qd2 Qg6 29.Kh1–+) 28.f4 Qc5 29.e5?? Nd5 30.Qc5 bc5 31.b6 Nb6 32.Re4 Nd5 33.f5 c4 34.f6 Re6 35.Rb1 Re8 36.Rd4 Nb6 37.Rbd1 c3 38.Rd8 Rc8 39.Rc8 Rc8 40.Rc1 c2 41.Kf1 Nd5 42.Ke2 Ne7 43.Kd2?? Nf5 44.Rc2 Rc2 45.Kc2 Nd4 46.Kd3 Nc6 47.Kc4 a5 48.Kc5 a4 (48...a4 49.e6 fe6–+) 0–1. toll (1610) – DONICECOLD (1635), ICC, 2003.

5.Nf3 Nbd7 6.Be2 e6 =.

5.Nf3 g6 6.c4 Bg7 7.Be2 Bg4 8.a4 (8.cd5 Qd5 9.Nc3 Qe6+=) 8...Bf3 (8...a6 9.h3 Be6 10.Nd4=) 9.Bf3+= c6 10.cd5 cd5 11.0–0 Nbd7 (better is 11...0–0!?+=) 12.Bd5!+/– Nd5 13.Bg7 Rg8 14.Bb2 Rc8 15.Nc3 N7b6 16.Nd5 Qd5 17.Rc1 (17.Bd4!?+–) 17...Rc1+/– 18.Qc1 Na4? (18...f6 19.e4! Qd3 20.e5+/–) 19.Qc8+= Qd8 20.Qb7 Nb2?! (20...Qd7 21.Qa8 Qd8 22.Qc6 Kf8+–) 21.Rc1 Na4 (21...f5 22.Rc8 Kf7 23.Rd8 Rd8+–) 22.Rc8 (22.Rc8 e5 23.Rd8 Kd8 24.Qb8 Ke7 25.Qg8+–) 1–0. algernon (2330) – gbsrao (2285), net–chess.com, 2013.

5.f4 e6 6.Nf3 =.

5.f4 Bf5 6.Nf3 c5 (6...e6 7.Nc3=) 7.a4 e6 (7...Nbd7 8.Be2=) 8.Be2 Bd6 (8...Bg4 9.h3 Bf5 10.0–0=) 9.Nh4 (9.0–0 a6=) 9...Be4 (9...0–0 10.Nf5 ef5 11.0–0+=) 10.d3+= Bg6 11.0–0 a6 (11...d4 12.ed4 Nd5 13.Qe1=) 12.Na3 (12.e4 de4 13.Ng6 hg6 (worse is 13...fg6 14.de4 Be7 15.Qd8 Bd8 16.Nd2+/–) 14.ba6 Na6 15.de4 c4=) 12...ab5 (12...Nbd7 13.ba6 ba6 14.Ng6 hg6 15.Rb1=) 13.Nb5 Nc6 (13...Be7 14.Ng6 hg6 15.Be5+=) 14.e4+/– de4 15.Bf6 (15.Nd6?! Qd6 16.Ng6 hg6 17.de4 Ne4=) 15...gf6 16.de4 (worse is 16.Nd6 Qd6 17.Ng6 Qd4 18.Kh1 hg6 19.de4 Ra4=) 16...Nd4 (16...Ke7 17.f5+–) 17.c3 (17.Nd4 cd4 18.Bb5 Kf8 19.Qd4 Kg7 20.Ng6 fg6+–) 17...Ne2 18.Qe2 0–0? (better is 18...c4 19.f5 Bc5 20.Kh1 Qd3 21.Qd3 cd3 22.Nc7 Ke7 23.Na8 Ra8 24.fg6 fg6+–) 19.Rad1 (19.Rfd1 Ra6 20.Ng6 fg6+–) 19...Ra6 20.e5 (worse is 20.Rd6 Rd6 21.Nd6 Qd6+–) 20...fe5 21.Ng6 (21.Nd6?! Rd6 22.Rd6 Qd6 23.fe5 Qd3+=) 21...fg6 22.fe5 (22.Nd6?! Rd6 23.Rd6 Qd6=) 22...Qb6 (22...Rf1 23.Qf1 Ra4 24.Nd6 Qd7+–) 23.Rd6 Qa5 (23...Qd8 24.Rd8 Rd8+–) 24.Rf8 Kf8 Plans Rxd6 25.Qf3 Ke8 26.Qb7 Rd6 (26...Qb5 27.Qb5 Kf8 28.Qa6 Kg7 29.Qa7 Kh6 30.Qc5 Kh5 31.a5 g5 32.Qc4 Kg6 33.Qe6 Kg7 34.Rd7 Kf8 35.Qf7) 27.Nd6 Kd8 28.Qc8 Ke7 29.Qe8 1–0. pcmvr (2110) – kkoushik (2155), net–chess.com, 2006.

5.c4 e6

6.Nf3 a6 7.Qa4 =.

6.Nf3 c5

7.a4 Bd6 (7...Be7 8.Be2 0–0 (8...Nbd7 9.0–0 0–0 10.a5 a6 11.b6 Bd6; 8...dc4 9.0–0 0–0 10.Bc4 Nbd7 11.a5 a6; 8...a6 9.d4 0–0 10.dc5 Bc5 11.0–0 b6) 9.0–0 Nbd7 10.a5 a6 11.b6 Bd6; 7...Nbd7 A) 8.Be2 Bd6 (8...Nb6 9.cd5 Nbd5 10.0–0 Be7 11.d4 0–0; 8...dc4 9.Na3 c3 10.Bc3 Ne4 11.Qc2 Nc3) 9.0–0 0–0 10.d4 cd4 11.Qd4 e5; B) 8.Nc3 Bd6 (8...Qa5 9.Qb3 Qb4 10.Qb4 cb4 11.Nd1 dc4; 8...Be7 9.Be2 0–0 10.0–0 dc4 11.a5 b6) 9.d4 Qa5 10.cd5 ed5 11.Be2 c4) 8.cd5 (8.Bf6 Qf6 9.Nc3 dc4+= (9...0–0 10.cd5 e5 11.Qc2 Rd8) 10.Ne4 Qe7 11.Nd6 Qd6; 8.Be2 0–0 (8...Nbd7 9.0–0 0–0 10.d4 cd4 11.Qd4 e5; 8...dc4 9.Na3 Bc7 10.Nc4 0–0 11.d4 Nbd7; 8...b6 9.0–0 0–0 10.d4 Bb7 11.cd5 Nd5) 9.d4 dc4 10.0–0 Qe7 11.dc5 Bc5; 8.Bd3 0–0 (8...a6 9.0–0 0–0 10.Na3 Nbd7 11.Qc2 Qc7; 8...Nbd7 9.cd5 ed5 10.0–0 0–0 11.a5 Re8) 9.0–0 Nbd7 10.Qc2 Re8 11.Nc3 Nb6; 8.d4 0–0 (8...Nbd7 9.dc5 Nc5 10.cd5 ed5 11.Be2 0–0) 9.dc5 Bc5 10.Be2 Qe7 11.0–0 Rd8) 8...ed5 9.Be2 0–0 10.0–0 Nbd7 (10...Re8 11.a5 Bf5) 11.d3 (11.d4 c4) 11...Re8 12.Nbd2 Ng4 (12...b6 13.Qc2=) 13.h3 (13.a5 Qe7=) 13...Nge5 (13...Ngf6 14.a5=) 14.Ne5 (14.d4 Nf3 15.Bf3 Qg5=) 14...Be5 15.Be5 Ne5 16.d4 (16.Qc2 d4 17.Qc5 de3=) 16...cd4 17.ed4 Ng6 18.Bd3 (18.Re1 Qf6=) 18...Nf4+= 19.Qc2?? (better is 19.Nf3+=) 19...Bh3–+ (19...Nd3?! 20.Qd3 Qg5 21.Nf3=) 20.Bh7 Kh8 21.Bf5 (21.Nf3 Bg2 22.Qf5–+) 21...Bg2 22.Rfe1 (22.f3 Qh4 23.Ne4 Qh1 24.Kf2 Bf1 25.Qd2 Qg2 26.Ke1 Nd3 27.Kd1 Qf3 28.Kc2 de4 29.Bg4 Rac8 30.Kb1 Qg4 31.Ka2 Qe6 32.Ka3 Qd6 33.Ka2–+) 22...Qg5 (22...Qh4 23.Re8 Re8 24.Bh3 Qh3 25.Qh7 Kh7 26.f3 Ne2 27.Kf2 Qg3) 23.Bd3 Bh3 0–1. hal1958 – Vatsal, playchess.de, 2003.

7.Nc3 A) 7...Qa5 A1) 8.Rc1 Nbd7 (8...Be7 9.Qb3 Qb4 10.Qb4 cb4 11.Ne2 Nbd7; 8...Bd6 9.Qb3 Qb4 10.Qb4 cb4 11.Ne2 Nbd7) 9.d4 Qb4 10.Rb1 cd4 11.Qd4 Qa5; A2) 8.Qc2 Nbd7 9.Be2 Bd6 10.0–0 0–0 11.Ng5 h6; A3) 8.Be2 Bd6 9.d4 0–0 10.cd5 Nd5 11.Qd2 b6; A4) 8.Qb3 Qb4 (8...dc4 9.Bc4 Bd6 10.Ne2 Bd7 11.0–0 a6) 9.Qc2 Be7 10.cd5 ed5 11.Nd5 Nd5; B) 7...Bd6 8.d4 0–0 (8...Qa5 9.cd5 cd4 10.Qd4 ed5 11.Be2 0–0; 8...cd4 9.Qd4 a6 10.cd5 ed5 11.Bd3 ab5) 9.cd5 ed5 10.dc5 Bc5 11.Rc1 Be6.

7.Bd3 A) 7...a6 8.Nc3 Bd6 9.0–0 0–0 10.Qc2 Nbd7 11.a4 Nb6; B) 7...Be7 B1) 8.Qc2 a6 (8...Nbd7 9.0–0 Bd6 10.cd5 ed5 11.Rc1 c4; 8...dc4 9.Bc4 0–0 10.d4 cd4 11.Bd4 Qa5; 8...Bd6 9.0–0 Nbd7 10.a4 e5 11.cd5 Nd5) 9.a4 dc4 10.Bc4 ab5 11.ab5 Ra1; B2) 8.Nc3 0–0 (8...a6 9.0–0 ab5 10.Nb5 0–0 11.Qc2 Nc6; 8...Bd6 9.Qb3 dc4 10.Bc4 0–0 11.0–0 Qc7; 8...Qd6 9.0–0 0–0 10.Ne2 Nbd7 11.cd5 ed5) 9.0–0 Nbd7 10.Be2 Nb6 11.d3 a6; B3) 8.cd5 ed5 9.0–0 0–0 10.Nc3 Re8 11.Rc1 c4; B4) 8.0–0 a6 (8...0–0 9.Qc2 Nbd7 10.Rc1 Bd6 11.cd5 ed5; 8...Nbd7 9.Qc2 Bd6 10.a4 0–0 11.a5 Qe7; 8...Bd6 9.Ne5 0–0 10.f4 a6 11.a4 b6) 9.Qa4 0–0 10.Nc3 b6 11.Qc2 ab5; C) 7...Bd6 C1) 8.Nc3 0–0 (8...Nbd7 9.0–0 0–0 10.Qc2 Nb6 11.cd5 ed5) 9.0–0 Nbd7 10.Qc2 Nb6 11.cd5 ed5; C2) 8.Qc2 Nbd7 (8...a6 9.Nc3 b6 10.0–0 dc4 11.Bc4 0–0; 8...dc4 9.Bc4 Nbd7 10.e4 e5 11.0–0 Qe7; 8...Bd7 9.Be5 Be5 10.Ne5 Qc7 11.f4 a6) 9.0–0 0–0 10.Nc3 Nb6 11.cd5 ed5; C3) 8.Bf6 Qf6 9.Nc3 dc4 10.Ne4 Qd8 11.Nd6 Qd6; C4) 8.0–0 Nbd7 (8...0–0 9.Ne5 a6 10.Na3 b6 11.f4 Bb7) 9.Nc3 0–0 10.Qc2 Nb6 11.cd5 ed5.

7.d4 cd4 8.Bd4 Bb4 (8...Nbd7 9.cd5 Qa5 10.Nbd2 Nd5 11.Rc1 N7f6) 9.Nbd2 0–0 10.cd5 Nd5 11.Bd3 a6.

7.d4 Nbd7= A) 8.dc5 Nc5 (8...Bc5 9.cd5 ed5 10.Be2 0–0 11.0–0 Re8) 9.cd5 Nce4 10.Nbd2 Bb4 11.de6 Be6; B) 8.Be2 dc4 (8...cd4 9.Bd4 dc4 10.Bc4 Bd6 11.0–0 0–0) 9.Bc4 cd4 10.Bd4 Bd6 11.0–0 0–0; C) 8.Bd3 dc4 (8...cd4 9.Bd4 Bb4 10.Bc3 Bc3 11.Nc3 Qc7; 8...Nb6 9.Nfd2 cd4 10.Bd4 dc4 11.Nc4 Nc4; 8...Bd6 9.0–0 0–0 10.cd5 ed5 11.dc5 Nc5) 9.Bc4 cd4 10.Bd4 Bd6 11.0–0 0–0; D) 8.cd5 ed5 (8...Nd5 9.Nc3 a6 10.e4 Nc3 11.Bc3 Nf6) 9.dc5 Nc5 10.Be2 Bd6 11.0–0 0–0.

7.Be2 A) 7...Bd6 A1) 8.0–0 0–0 (8...Nbd7 9.d4 0–0 10.cd5 ed5 11.dc5 Nc5; 8...dc4 9.Na3 c3 10.dc3 0–0 11.Qc2 Nbd7) 9.d4 b6 10.Nc3 Bb7 11.dc5 bc5; A2) 8.d4 0–0 (8...Nbd7 9.cd5 Nd5 10.dc5 Bc5 11.0–0 0–0) 9.0–0 Nbd7 10.cd5 ed5 11.dc5 Nc5; B) 7...Be7 B1) 8.0–0 a6 9.d4 ab5 10.cd5 c4 11.de6 Be6; B2) 8.Qc2 0–0 (8...a6 9.0–0 ab5 10.cb5 0–0 11.Rc1 Nbd7; 8...Nbd7 9.0–0 0–0 10.Nc3 Bd6 11.Rac1 dc4; 8...dc4 9.0–0 a6 10.Nc3 ab5 11.Nb5 b6) 9.d4 cd4 10.Bd4 Qc7 11.0–0 Nbd7; B3) 8.d4 0–0 (8...Nbd7 9.dc5 Bc5 10.0–0 0–0 11.cd5 Nd5; 8...dc4 9.Bc4 a6 10.ba6 Na6 11.0–0 0–0) 9.0–0 a6 10.cd5 Nd5 11.dc5 Bc5; C) 7...Nbd7 8.0–0 Bd6 (8...dc4 9.Na3 a6 10.ba6 b6 11.a7 Ra7; 8...Be7 9.d4 dc4 10.Qc2 cd4 11.Bd4 Nb6; 8...a6 9.Nc3 Bd6 10.d4 dc4 11.Bc4 Nb6) 9.d4 cd4 10.cd5 e5 11.Nbd2 Nb6; D) 7...a6 8.Na3 (8.d4 ab5 9.cd5 c4 10.de6 Be6 11.0–0 b4; 8.cd5 ed5 9.ba6 ba6 10.Qa4 Nbd7 11.0–0 Rb8; 8.ba6 Na6 9.cd5 ed5 10.0–0 Be7 11.Nc3 0–0) 8...Bd6 (8...Be7 9.0–0 0–0 10.d3 Nbd7 11.Qc2 Qa5; 8...ab5 9.Nb5 Be7 10.Be5 0–0 11.Bc7 Qe8) 9.0–0 0–0 10.d4 cd4 11.Qd4 e5.

5.Nf3 e6

6.a4 b6 7.c4 dc4 8.Na3 Be7 9.Nc4 0–0 10.Be2 c6 11.0–0 Bb7 12.Nfe5 Qd5?? (better is 12...Nd5=) 13.Bf3 Qd8 14.bc6 (14.Nc6?! Bc6 15.bc6 Nd5+/–) 14...Ba6 15.c7! Qc7 16.Ba8 Bb7?? (better is 16...Nbd7 17.Bf3 Bc4 18.Nc4 Qc4+–) 17.Bb7 Qb7 18.Qb3 Nc6 19.Nc6 Qc6 20.Qb5 White prepares the advance a5 20...Qe4 21.a5 Bc5 (21...Qd5 22.Qa6+–) 22.Bf6 gf6 23.d4 (23.d4 Be7 24.ab6 ab6 25.Ra7+–) 1–0. pcmvr – gambit (2570), net–chess.com, 2016.

6.a4 c6 7.Nc3+= Bb4 8.Bd3 (8.Be2 Nbd7+=) 8...0–0 9.0–0 (9.Rb1 Re8 10.0–0 e5=) 9...Nbd7= 10.bc6 (10.Rb1 e5 11.Ne2 Bd6–/+) 10...bc6 11.Rb1 (11.Ne2 Rb8=) 11...Nc5 (11...e5 12.Bf5+=) 12.Ne5 (12.Be2 Bd7+=) 12...Qd6 13.Na2 (13.f4=) 13...Ba5 (13...a5!?=) 14.Ba3+= Qe5 (14...Bd7 15.Bh7 Kh7 16.d4+/–) 15.Bc5+/– Bd7 (15...Rd8 16.Bd4 Qd6 17.Bf6 gf6 18.Qh5+=) 16.Bf8 Kf8 (16...Rf8 17.Nc3!+/–) 17.Nc3! Qg5 (17...Bc3 18.f4 Decoy) 18.Qc1+– e5 (18...Kg8 19.Qb2 Rc8 20.Qb7+–) 19.Qa3 Kg8 20.Qd6 e4 (20...Bb6 21.a5! Ba5 22.f4 ef4 23.ef4+–) 21.f4 ef3 (better is 21...Qf5 22.Be2 Ne8+–) 22.Rf3 Bg4 (22...Rd8 23.Rb8 Rb8 24.Qb8 Ne8 25.Qa7 Qd8+–) 23.Rb8 Ne8 24.Ra8 Bf3 (24...Bc8 25.Rc8 Bd8 26.Rd8 Qd8 27.Qd8 Kf8 28.Nd5 cd5 29.Bb5 g6 30.Qe8 Kg7 31.Qf7 Kh6 32.Rh3 Kg5 33.Qf4) 25.Re8 1–0. pierre – oppoxrx, internet, 2010.

6.a4 Bd6 7.c4 (7.Be2 Nbd7=) 7...0–0 (7...a6 8.Nc3=) 8.d4 b6 (8...dc4 9.Bc4 a6 10.Nc3=) 9.a5 (9.Nbd2 a6=) 9...c5 (9...a6!?=) 10.ab6+= Qb6 (10...a5 11.Bc3+=) 11.dc5+/– Bc5 12.Bf6 gf6 13.cd5 Rd8 14.Be2 (14.Nc3 Bb4 15.Rc1 Bb7+/–) 14...Rd5 15.Qb3 (15.Qa4 a5 16.Qg4 Kh8+=) 15...Rh5 (15...a6 16.Nc3 Rd8 17.0–0+/–) 16.0–0 (16.Nfd2 Rh6+=) 16...a6 (16...Bb7 17.Qc4 Rh6 18.Nc3+/–) 17.Nc3+/– f5 (better is 17...Bb7+/–) 18.Na4+– Qc7 19.b6 Qc6 20.Nc5 Qc5 (20...f4 21.b7 Rc5 22.ba8R Qa8 23.Qb4+–) 21.Rfc1 Qf8 (21...Nd7 22.Rc5 Nc5 23.Qb4+–) 22.Rc8! Qc8 Decoy theme: c8 23.b7 Theme: Double Attack 23...Qc6 24.ba8Q (better is 24.Ne5 Qe4 25.ba8R Qa8 26.Bh5+–) 24...Qa8 25.Qb6 Nd7 26.Qa6 (better is 26.Qc7 Nf6 27.Ne5 Qf8 28.Bh5 Nh5+–) 26...Qd5 (26...Qa6 27.Ra6 f4 28.ef4+–) 27.Qa8 (better is 27.Rd1 Qc5 28.Rd7 Rh6+–) 27...Kg7 (27...Qa8 28.Ra8 Kg7 29.Ne5 Ne5 30.Bh5+–) 28.Qd5 ed5 29.Ne5! Rh6 (29...Ne5 30.Bh5) 30.Nd7 Rd6 (30...d4 31.Ra7 de3 32.fe3+–) 31.Ne5 d4 (31...f4 32.Ra7 fe3 33.Rf7 Kg8 34.fe3+–) 32.ed4 (better is 32.Ra7 de3 33.Rf7 Kh6 34.fe3 Re6 35.Rf5 Kg7+–) 32...Rd4 33.Nf3 Re4 (33...Rd7 34.Kf1+–) 34.Bd3 Rf4 35.Ra5 Rb4 36.Bf5 h5 (36...Rc4 37.Kf1+–) 37.h4 Kf6 (37...Rb6 38.Bd3+–) 38.g3 (38.g3 Kg7 39.Bd7+–; 38.Bd3 Rb3 39.Rf5 Ke7+–) 1–0. Arias,Juan Carlos (2215) – Bobb,Nicolas, Lazarsky mem, 2004.

6.c4 a6 7.Nc3 =.

6.c4 b6 7.cd5 Qd5 (7...ed5 8.Bf6 Qf6 9.Nc3=) 8.Bf6+= gf6 9.Nc3 Qd8 10.Qa4 Bd7 11.d4 a6 12.Bd3 Bg7 (12...c6 13.ba6 Na6 14.Ba6+=) 13.Rc1 0–0 14.Qa3 (14.Nd1 Kh8+/–) 14...f5+= 15.0–0 (15.Ne2 Bc8+=) 15...c6 (15...Bc8 16.Qb2+=) 16.ba6 (16.Rfd1 cb5 17.Bb5 Ra7+/–) 16...Na6+= 17.Qd6 (17.Qa6 Ra6) 17...b5 (17...Qc7!? 18.Qe7 c5+=) 18.a4+/– ba4 (18...b4 19.Ba6 bc3 20.Bd3+/–) 19.Na4 Nc7 (19...Bc8 20.Qc6 Bd7 21.Qc4+/–) 20.Nc5+– Be8 21.Qg3 Nd5 22.Ne5 Qe7 (22...Kh8 23.Ra1+–) 23.Rb1+– Ra7 24.Ra1 f6 (24...Ra1 25.Ra1 h6 26.Ra6+–) 25.Ra7 Qa7 26.Ne6 (better is 26.Nc4!? Bf7 27.Nd6+–) 26...fe5+= 27.Nf8 (27.Nf8 f4 28.Qg5 Kf8 29.de5 fe3 30.fe3 Kg8 31.Qf5 Qe3 32.Kh1+/–) 1–0. marus2 – sydvicious, internet, 2001.

6.c4 Bc5 7.cd5 ed5 8.d4 =.

6.Be2 a6 7.ba6 Na6 8.0–0 Bd6 9.c4 dc4 10.Bc4 Bd7 11.d4 Bb5?? (11...0–0 12.Nc3=) 12.Bd3 (12.Bb5 c6 13.Be2 0–0+–) 12...c5?? (12...Bd3 13.Qd3 0–0 14.e4=) 13.dc5 (13.Bb5 Ke7+–) 13...Bc5?? (13...Bd3 14.Bf6 Bh2 (14...gf6?! 15.cd6 Bf1 16.Kf1=; worse is 14...Qf6 15.Qd3 Qa1 16.Qb5 Kf8 17.cd6+/–) 15.Kh2 gf6 (15...Qf6? 16.Qd3 Qa1 17.Qb5 Kf8 18.Qb7+–) 16.Qa4 Ke7–/+) 14.Nc3 (better is 14.Bb5 Ke7 15.Qe2+–) 14...0–0 (better is 14...Bd3 15.Ne2 Be4–+) 15.Bb5+– ½–½. Fournier,Frederic (1835) – ciscom (1790), Active (5/0), 2004.

6.Be2 a6 7.ba6 Na6 8.0–0 Bd6 9.Be5 0–0 10.d4 =.

6.Be2 Bd6 7.0–0 (7.Be5 Be5 8.Ne5 Nbd7 9.Nd7 Qd7 10.0–0=) 7...a6 8.ba6 Na6 9.Be5 0–0 10.d4 =.

6.Be2 Nbd7 7.0–0 Bd6 8.d4 0–0 9.c4 b6 10.Ne5 =.

6.Be2 Be7 7.0–0 0–0 8.d3 c6 9.c4 dc4 10.dc4 Qd1 (10...Nbd7 11.Qd2=) 11.Rd1+= cb5. secgestor – escaques, internet, 2007.

6.Be2 Be7 7.0–0 0–0 8.Ne5 Ne4 9.c4 f6 10.d3 =.

6.c4 Be7

7.Nc3 0–0 8.d4 (8.Ne5 Nbd7 9.Nd7 Bd7=) 8...c6 (8...a6 9.c5=) 9.a4 (9.Ne5 cb5 10.cb5 Nbd7=) 9...Bb4 10.Qb3 Bc3 (10...c5!?=) 11.Bc3 Ne4 12.Bb4 White prepares the advance c5 (12.Bd3 Nc3 13.Qc3 dc4 14.Bc4 cb5 15.ab5 b6+=) 12...Re8 (12...c5 13.dc5 Qf6 14.Rd1+/–) 13.c5 (13.Bd3 cb5 14.ab5 dc4 15.Qc4 Nd6+/–) 13...a5 14.Ba3 b6 (14...cb5 15.Bb5 Nc6 16.0–0+=) 15.bc6 (15.Rc1 bc5 16.Bc5 Nc5 17.Rc5 cb5 18.Bb5 Nd7+=) 15...bc5= 16.dc5 (16.Rc1 Nc6 17.Bc5 Rb8=) 16...Nc6 17.Bb5 (17.Qb6 Qf6 18.Rc1 e5+=) 17...Bd7 (17...Rb8 18.Qd3 Qf6 19.Rb1=) 18.Nd4 (18.0–0 Rb8=) 18...Rb8 19.0–0 (better is 19.Rc1!?+=) 19...Nd2–/+ 20.Qd3 Nf1 21.Kf1 (21.Nc6 Bc6 22.Bc6 Nh2 23.Be8 Qe8 24.Qd1+/–) 21...Nd4–+ 22.ed4 Qc7 23.g3 (23.Bb2 Qh2 24.Bc3 Re7–+) 23...Bc6 (23...e5 24.Rb1–+) 24.Rb1 (24.Re1 Rec8–+) 24...e5 25.Bb2 e4 26.Qe2 Rb7 27.Bc1 Reb8 (better is 27...Qd8–+) 28.Bf4= White is in command 28...Qc8 (28...Qd7 29.Bb8 Rb8 30.Kg2=) 29.Bb8 Rb8 30.Qa2 (30.Qe1 Qc7=) 30...g6 (30...Bb7 31.Kg2=) 31.Bc6 Rb1 32.Qb1 Qc6 33.Qb8 Kg7 34.Qb5 (better is 34.Qd8 Qa6 35.Kg2+=) 34...Qc8? (better is 34...Qf6!?+=) 35.Qa5+– Qh3 36.Kg1 Qg4 37.Qd2 Qf3 (37...Kf6 38.a5 Ke6 39.a6+–) 38.a5 Qd3?? (better is 38...Kf8+–) 39.Qd3 ed3 40.Kf1 (40.Kf1 Kf6 41.a6+–) 1–0. Kanka,J (1650) – Polak,M, Plzen FSB C, 2003.

7.Nc3 a6 8.Be2 =.

7.Nc3 dc4 8.Bc4 0–0 9.0–0 Nbd7 (9...a6 10.Qa4=) 10.d4+= Nb6 11.Bb3 (11.Bd3 Nbd5+=) 11...a6= 12.a4 a5 (12...ab5 13.ab5 Ra1 14.Qa1=) 13.e4 c6 14.Qe2 c5 (14...cb5 15.ab5 Qd7 16.Na4+=) 15.dc5 Bc5 16.Rad1 Qe7 17.e5 Ne8 (17...Nfd5 18.Bd5 Nd5 19.Nd5 ed5 20.Rd5+=) 18.Ne4 Bb4 19.h3 (19.Qe3 Qc7+/–) 19...h6 (19...Nc7 20.Bd4 Nbd5 21.b6+/–) 20.Qe3 Nd7 21.Nd6 (21.Rd3 b6+/–) 21...Nc5? (better is 21...Ne5!? 22.Be5 Nd6=) 22.Bc2 b6 23.Ne4 (23.Rd4 Bb7+/–) 23...Nc7 (23...Bb7 24.Nc5 Bc5 25.Bd4+=) 24.Nc5+/– Bc5 25.Qe4 g6 26.Bc1 Rb8 (better is 26...Kg7!?+/–) 27.Bh6+– Bb7 (27...Re8 28.Bg5 Qf8 29.Qh4+–) 28.Qf4 (28.Bf8 Qf8 29.Qg4 Rc8+–) 28...Rfd8 (28...Rfc8 29.Bg5 Qe8 30.Bd3+–) 29.Rd8 (29.Bg5 Rd1 30.Be7 Nd5+–) 29...Rd8? (better is 29...Qd8 30.Bg5 Nd5+–) 30.Bg5 Nd5 (30...Qd7 31.Qh4 Bf3 32.Bd8 Be2+–) 31.Qh4 f6 32.ef6 Qf7 33.Ne5 Qh7 34.f7 Kh8 (34...Kg7 35.Qh7 Kh7 36.Bg6 Kg7 37.Bd8+–) 35.Bd8 (35.Bf6 Nf6 36.Qf6 Qg7 37.Ng6 Kh7 38.Nf8 Kh8 39.Qh4 Qh6 40.Qh6) 35...Qh4 36.Bh4 Kg7 37.Nd7 (37.Bg3!? Nc3+–) 37...Bb4 38.f8Q! Bf8 39.Nf8 Kf8 40.Bg6 (40.Be4 Kf7+–) 40...Nc3 (40...Nf4 41.Rd1 Ng6 42.Rd8 Kf7 43.Rd7 Ke8 44.Rb7 Nh4 45.Rb6+–) 41.Bc2 (41.Re1 Bd5 42.Bc2 Na2+–) 41...Bd5 (41...Ne2 42.Kh2 e5 43.Bf6+–) 42.Re1 Kf7 (42...Ba2 43.Bf6 Nd5 44.Re6+–) 43.Bd8 Ke8 44.Bb6 Kd7 45.Ba5 Kc8 46.Bc3 Kb7 47.a5 Ka7 48.Bd4 Kb7 49.a6 Ka8 50.b6 Kb8 51.Be4 Kc8 52.Bd5 ed5 53.Re7 Kd8 54.Rh7 Ke8 55.a7 Kd8 56.a8R (56.a8Q) 1–0. Fredek (2090) – Frankopan (1705), Freundschaftspartie, 5m + 0s, 2005.

7.d4 0–0 A) 8.Ba3= Ba3 9.Na3 c5 10.Nc2 cd4 11.Qd4 Qc7=; B) 8.Bd3 a6 (8...dc4 9.Bc4 a6 10.0–0 ab5 11.Bb5 Bd7=) 9.0–0 dc4 10.Bc4 ab5 11.Bb5 Bd7=; C) 8.Be2 dc4 (8...a6 9.Ba3 ab5 10.Be7 Qe7 11.cb5 c6=) 9.0–0 a6 10.Bc4 ab5 11.Bb5 Bd7=; D) 8.Nbd2 a6 (8...Bd7 9.Ne5 a6 10.ba6 Na6 11.c5 b6=) 9.Qa4 dc4 10.Bc4 Bd7 11.0–0 Nd5=; E) 8.Nc3 Re8 (8...a6 9.Qa4 Nbd7 10.c5 Ne4 11.Ne4 de4=; 8...c6 9.Be2 cb5 10.cb5 a6 11.Qa4 Qd6=; 8...dc4 9.Bc4 a6 10.ba6 Na6 11.0–0 b6=) 9.c5 c6 10.Bd3 b6 11.cb6 ab6=.

7.d4 a6 A) 8.Ba3 0–0 (8...Ba3 9.Na3 c5 10.Qa4 cd4 11.ed4 dc4=) 9.Be7 Qe7 10.Nc3 Ne4 11.Ne4 de4=; B) 8.Nc3 c6 (8...0–0 9.Qa4 c6 10.Ba3 dc4 11.Be7 Qe7=; 8...Bd7 9.Qa4 dc4 10.Bc4 c6 11.Ba3 cb5=; 8...dc4 9.Bc4 ab5 10.Bb5 Bd7 11.Bd3 0–0=; 8...ab5 9.cb5 0–0 10.Bd3 c6 11.0–0 cb5=) 9.Qa4 dc4 10.Ba3 cb5 11.Nb5 Nc6=; C) 8.Bd3 dc4 9.Bc4 ab5 10.Bb5 Bd7 11.Bd3 Nc6=; D) 8.Be2 dc4 (8...ab5 9.cb5 Bb4 10.Nc3 0–0 11.0–0 Bd6=) 9.Bc4 ab5 10.Bb5 Bd7 11.Bd3 0–0=; E) 8.ba6 Na6 (8...b6 9.Ba3 c5 10.Qa4 Nbd7 11.cd5 ed5=) 9.Ba3 Ba3 10.Na3 c5 11.Nc2 cd4=; F) 8.Qa4 Nbd7 9.c5 Rb8 10.Nc3 ab5 11.Bb5 c6=.

7.d4 dc4 8.Bc4 c6 9.0–0 Nbd7 (9...cb5 10.Bb5 Bd7 11.Bd3+=) 10.bc6+= bc6 11.Nbd2 Nd5 12.e4 N5b6 13.Bd3 0–0 14.a4 a5 15.Nb3 Re8 (15...c5!? 16.dc5 Nc5 17.Nc5 Bc5+/–) 16.Bc3+/– Ba6 17.Ba5 Bd3 (17...c5 18.dc5 Nc5 19.Nc5 Bc5 20.Bb5 Bb5 21.Qd8 Red8 22.ab5+–) 18.Qd3+– Bd6 19.Rfc1 Qc7 20.Qc2 Rec8 21.Bb6 Nb6 22.a5 Nd7 23.e5 Be7 24.Nfd2 Bg5 25.Rd1 c5 26.dc5 (26.Ne4 Be7+/–) 26...Ne5+/– 27.Ne4 Be7 28.a6 f5 (28...Ng4 29.Ng3+/–) 29.Ng3+– Bc5? (better is 29...f4!? 30.Ne4 f3+–) 30.Nc5 (30.Qc5?! Qc5 31.Nc5 Rc5+/–) 30...Qa7? (30...Nd7 31.Rd7 Qd7 32.Nd7 Rc2+–) 31.Rac1 Rc6 32.Ne2 (32.Qc3 Ng4 33.Qb4 Rc7+–) 32...Rac8 33.Qb3 Qe7 (33...Rc5 34.Qe6 Kf8 35.Qf5 Ke7 36.Qh7 Qa6 37.Qg7 Ke8 38.Rc5 Rc5+–) 34.Ne6! Rc1 35.Rc1 Rc1 36.Nc1 Nf7 37.Qb8 (37.Qb8 Nd8 38.a7 Qa7 39.Qa7 Ne6 40.Qd7+–) 1–0. woschkat (2175) – negracapa (1980), net–chess.com, 2001.

7.d4 c5 8.Nc3 (8.dc5 Bc5 9.cd5 ed5 10.Bd3 a6 11.ba6 Na6+=; 8.cd5 Qd5 (8...ed5 9.dc5 Bc5 10.Bd3 Bg4 11.0–0 0–0+=) 9.Qc2 Nbd7 10.Nc3 Qh5 11.Rd1 0–0+=) 8...cd4 (8...Nbd7 9.cd5 ed5 10.dc5 Nc5 11.Be2 0–0+=) 9.Qd4 0–0 (9...Qa5 10.Bd3 Nbd7 11.0–0 dc4+=) 10.cd5 b6 (10...ed5!? 11.Rd1 Be6+=) 11.Bc4+/– Bb7? (better is 11...a6+/–) 12.de6+– Qd4 13.ef7 Kh8 14.ed4 g6 15.0–0 Kg7 (15...Bf3 16.gf3 a6 17.ba6+–) 16.Rfe1 Bb4 17.Ne5 Nbd7 18.Rac1 Rac8 19.Be6 Rcd8 (19...Rfd8+–) 20.Nc6 Bc6 21.bc6 Nc5 (21...Rf7 22.Bf7 Kf7 23.cd7 Rd7+–) 22.dc5 Bc5 (22...Rd2 23.Ba1 bc5 24.Ne4+–) 23.Nd5 Rd5 (23...Rf7 24.Bf7 Kf7 25.Nf6+–) 24.Bd5 Rf7 25.Bf7 Kf7 26.c7 1–0. pierre – ss112, internet, 2008.

7.d4 c6 A) 8.Nc3 0–0 (8...cb5 9.cb5 0–0 10.Bd3 a6 11.Qa4 b6+=) 9.Rc1 a6 10.Qa4 dc4 11.Bc4 Nbd7+=; B) 8.c5 b6 (8...0–0 9.Qa4 cb5 10.Bb5 Bd7 11.0–0 Bb5=) 9.Ba3 0–0 10.bc6 Nc6 11.Bb5 Bd7=; C) 8.a4 0–0 9.Ba3 Ba3 10.Ra3 a6 11.Qb3 b6=; D) 8.Qb3 cb5 (8...0–0 9.Bd3 dc4 10.Qc4 a6 11.bc6 Nc6=; 8...Bd7 9.cd5 Nd5 10.e4 Nf4 11.Bc1 Ng6+=; 8...a6 9.ba6 b6 10.Ba3 c5 11.cd5 ed5=) 9.Qb5 Nc6 10.Ne5 a6 11.Qa4 0–0=; E) 8.Qa4 cb5 (8...Bd7 9.Ba3 0–0 10.Nc3 dc4 11.Be7 Qe7=; 8...0–0 9.Ba3 Bd7 10.Be7 Qe7 11.Qa3 Qd8=; 8...a6 9.Ba3 0–0 10.Be7 Qe7 11.Nc3 dc4=; 8...dc4 9.Bc4 Bd7 10.Ba3 cb5 11.Bb5 a6=) 9.Qb5 Nc6 10.Ne5 a6 11.Qa4 0–0=; F) 8.cd5 ed5 9.Bd3 0–0 10.0–0 cb5 11.Bb5 Bg4=.

7.cd5 ed5 A) 8.Bd3 0–0 (8...Bg4 9.h3 Bh5 10.Qc2 Bf3 11.gf3 c5=; 8...a6 9.Nc3 ab5 10.Nb5 c6 11.Nbd4 0–0=; 8...c5 9.bc6 Nc6 10.0–0 0–0 11.Qb3 Ne4=; 8...Nbd7 9.0–0 Nc5 10.Be2 Bf5 11.Nc3 0–0=; 8...Bd6 9.0–0 a6 10.Nc3 Bg4 11.Be2 0–0=; 8...Bd7 9.Nc3 Bg4 10.0–0 0–0 11.Be2 a6=; 8...Be6 9.0–0 a6 10.Qa4 0–0 11.Rc1 c5=) 9.Qc2 a6 10.Nc3 ab5 11.Nb5 c6=; B) 8.Qa4 0–0 (8...Nbd7 9.Be2 Nb6 10.Qc2 0–0 11.0–0 Bd6=; 8...Bf5 9.Be2 0–0 10.Nd4 Bg6 11.f4 c5=; 8...Bd6 9.Be2 0–0 10.0–0 Re8 11.Nc3 Nbd7=) 9.Be2 Re8 10.0–0 c5 11.bc6 Nc6=; C) 8.Be2 a6 (8...c5 9.0–0 0–0 10.Qc2 Re8 11.Nc3 a6=; 8...0–0 9.0–0 Re8 10.Nc3 c5 11.bc6 Nc6=; 8...Bd6 9.0–0 0–0 10.Qc2 Re8 11.Bd4 a6=; 8...Bg4 9.0–0 a6 10.Qa4 Nbd7 11.ba6 0–0=; 8...Be6 9.0–0 0–0 10.Qc2 c5 11.Ng5 Nbd7=) 9.Qa4 0–0 10.0–0 Nbd7 11.ba6 Nc5=; D) 8.Qc2 a6 9.Bf6 Bf6 10.d4 Be7 11.Nc3 Bb4=.

7.Be2 A) 7...dc4 A1) 8.0–0 a6 (8...c6 9.Bc4 cb5 10.Bb5 Bd7 11.Bf6 Bf6=) 9.ba6 b6 10.Qa4 Qd7 11.Qc2 Nc6=; A2) 8.Bc4 a6 9.Qa4 c6 10.Nc3 0–0 11.0–0 Bd7=; B) 7...0–0 B1) 8.0–0 dc4 (8...a6 9.cd5 Nd5 10.Qa4 c6 11.bc6 Nc6=) 9.Bc4 a6 10.Qa4 Nbd7 11.Qc2 ab5=; B2) 8.Nc3 a6 (8...dc4 9.0–0 a6 10.Qa4 c6 11.Bc4 Nbd7=) 9.cd5 ed5 10.Qa4 Nbd7 11.0–0 Nc5=; B3) 8.cd5 Nd5 (8...ed5 9.0–0 Bd6 10.Nc3 Re8 11.Rc1 Qe7=) 9.Nc3 a6 10.Nd5 Qd5 11.Qc2 c6=; C) 7...a6 8.0–0 ab5 (8...0–0 9.cd5 Nd5 10.Qa4 c6 11.bc6 Nc6=; 8...dc4 9.Bc4 ab5 10.Bb5 Bd7 11.Qb3 0–0=; 8...Bd7 9.cd5 ed5 10.Qa4 0–0 11.Rc1 c5=) 9.cb5 0–0 10.Qc2 c5 11.Rc1 Nbd7=.

5.Nf3 Bf5

6.Nc3 a6 A) 7.Nh4 Bd7 (7...Bg6 8.a4 Nbd7 9.ba6 ba6 10.Rb1 e6 11.Be2 Bd6 12.0–0 0–0; 7...Be6 8.Bd3 g6 9.0–0 ab5 10.Nb5 Nc6 11.Qf3 Bg7 12.Rfb1 0–0; 7...Bc8 8.a4 e5 9.Nf3 Bd6 10.Be2 0–0 11.0–0 Bf5 12.d4 e4; 7...Bg4 8.Be2 h5 9.h3 Be2 10.Qe2 Nbd7 11.0–0 e6 12.a4 Bb4) 8.a4 e5 9.Nf3 Bd6 10.Be2 0–0 11.0–0 e4 12.Nd4 c5; B) 7.Nd4 Bd7 (7...Bg6 8.f4 c5 9.Nf3 d4 10.ed4 cd4 11.Ne2 d3 12.Ned4 dc2) 8.Qf3 e6 9.Qg3 c5 10.Nf3 ab5 11.Nb5 Na6 12.a4 Rc8; C) 7.h3 ab5 (7...Bg6 8.a4 e6 9.Be2 Bd6 10.0–0 0–0 11.Nh4 ab5 12.Ng6 hg6; 7...h6 8.Nd4 Bd7 9.a4 e5 10.Nf3 Bd6 11.Be2 0–0 12.0–0 e4; 7...e6 8.Nd4 Bg6 9.a4 Bd6 10.Bd3 c5 11.Nf3 Nbd7 12.0–0 0–0; 7...h5 8.Nd4 Bd7 9.a4 e5 10.Nb3 c5 11.Qf3 Be6 12.ba6 ba6; 7...c6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Bg6 11.Bb2 e6 12.Be2 Bd6) 8.Bb5 c6 9.Be2 Nbd7 10.0–0 Nc5 11.Nd4 Bd7 12.Nb3 e6; D) 7.g3 ab5 (7...e6 8.Nh4 Bg4 9.Be2 Be2 10.Qe2 Bd6 11.0–0 0–0 12.e4 Nbd7; 7...h5 8.a4 Nbd7 9.ba6 ba6 10.Be2 Nc5 11.0–0 Bh3 12.Re1 e6; 7...c6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c5 11.Bg2 Nbd7 12.0–0 e6; 7...Bg6 8.a4 e6 9.Nh4 Bc5 10.Bg2 Bh5 11.Nf3 Nbd7 12.0–0 0–0; 7...h6 8.Bd3 Bh3 9.Ne5 ab5 10.Nb5 c6 11.Qf3 Nbd7 12.Ng6 Rg8; 7...g6 8.Nd4 ab5 9.Nf5 gf5 10.Nb5 Nbd7 11.Bg2 h5 12.Qe2 e6) 8.Bb5 c6 9.Bd3 Bd3 10.cd3 Nbd7 11.0–0 e6 12.e4 de4; E) 7.Rb1 ab5 (7...h6 8.ba6 Na6 9.Ba3 Qc8 10.Bd3 e6 11.Bf8 Kf8 12.0–0 Nc5; 7...h5 8.Nd4 Bd7 9.Qf3 e6 10.Qg3 ab5 11.Ncb5 Na6 12.Be2 c5; 7...e6 8.Nd4 Bg6 9.h4 h5 10.Bc1 e5 11.ba6 ba6 12.Nf3 Nc6; 7...g6 8.Nd4 ab5 9.Nf5 gf5 10.Nb5 Nbd7 11.c4 c6 12.Nd4 Nc5; 7...Qc8 8.Nd4 Bd7 9.Qf3 e5 10.Nb3 Bg4 11.Qg3 Bd6 12.h3 e4) 8.Bb5 c6 9.Be2 Nbd7 10.0–0 Nc5 11.d4 Na4 12.Ne5 Nc3; F) 7.h4 Bg4 (7...ab5 8.Bb5 Nc6 9.a4 Bd7 10.0–0 e6 11.Bc6 Bc6 12.Nb5 Bc5; 7...c6 8.a4 ab5 9.ab5 Ra1 10.Qa1 Bc2 11.Qa8 Qc8 12.Nd4 e5) 8.a4 Nbd7 9.ba6 ba6 10.Be2 Rb8 11.Rb1 e5 12.0–0 Bd6; G) 7.Bd3 Bd3 8.cd3 Nbd7 9.0–0 e6 10.a4 Bd6 11.Qe2 0–0 12.e4 de4; H) 7.a4 e6 (7...ab5 8.ab5 Ra1 9.Qa1 Bc2 10.Qa7 Qc8 11.Qa2 Nbd7 12.Nd5 Nd5; 7...h6 8.Nd4 Bg6 9.Be2 c5 10.bc6 Nc6 11.Nc6 bc6 12.h4 Rb8; 7...Nbd7 8.Nd4 Bg6 9.ba6 ba6 10.Nc6 Qc8 11.Rb1 Qb7 12.Nd4 c5; 7...h5 8.Nd4 Bd7 9.Be2 e5 10.Nf3 Bd6 11.0–0 0–0 12.h3 Qe7; 7...g6 8.Be2 Bg7 9.Nd4 0–0 10.Nf5 gf5 11.0–0 ab5 12.ab5 Nbd7; 7...Bg6 8.Bd3 e6 9.0–0 Bd3 10.cd3 Nbd7 11.Qb3 Bd6 12.d4 0–0; 7...Qc8 8.Nd4 e5 9.Nf5 Qf5 10.Bd3 e4 11.Be2 Bd6 12.0–0 0–0) 8.Nd4 Bg6 9.Be2 Bd6 10.h4 h5 11.0–0 0–0 12.Re1 c5.

6.Nc3 Qd6 A) 7.Be2 Nbd7 (7...e5 8.a4 d4 9.ed4 ed4 10.Nb1 Qb4 11.Bd4 Nbd7 12.0–0 0–0–0; 7...g6 8.Nd4 Bg7 9.g4 Bd7 10.Bf3 Bh6 11.a4 0–0 12.Ba3 Qe5; 7...e6 8.Nd4 Nbd7 9.a4 Nc5 10.0–0 Be7 11.Nf5 ef5 12.d4 Nce4) 8.0–0 g6 9.Nd4 Bg7 10.g4 e5 11.Nf5 gf5 12.gf5 0–0–0; B) 7.Bd3 Bd3 (7...Bg4 8.h3 Bf3 9.Qf3 Nbd7 10.0–0 e6 11.a4 Ne5 12.Qe2 Be7) 8.cd3 Nbd7 9.0–0 e5 10.Qc2 Be7 11.a4 Qe6 12.a5 0–0; C) 7.Nd4 Bg6 8.Bd3 Nbd7 9.a4 Nc5 10.Ba3 Nd3 11.cd3 Qd8 12.Qc2 e5; D) 7.a4 e5 (7...c5 8.Bd3 Bg4 9.h3 Bf3 10.Qf3 Nbd7 11.Be2 Ne5 12.Qf4 0–0–0) 8.Bd3 Bd3 9.cd3 Nbd7 10.0–0 Qe6 11.e4 de4 12.Ne4 Bd6.

6.Nc3 Nbd7 A) 7.Nh4 Bg4 (7...Bg6 8.Be2 e6 9.0–0 Bd6 10.f4 0–0 11.f5 ef5 12.Nf5 Bf5) 8.Be2 Be2 9.Qe2 e6 10.0–0 Bd6 11.Nf3 Nc5 12.Ba3 Nce4; B) 7.Be2 e5 8.0–0 Bd6 9.Bd3 Bd3 10.cd3 0–0 11.Qc2 a6 12.h3 Qe7.

6.Nc3 e6 7.Be2 (7.Nd4 Bg6 8.h4 e5 9.Nf3 Nbd7 10.h5 Bf5 11.Be2 Bd6 12.h6 gh6; 7.Nh4 Bg4 (7...Bg6 8.Ng6 hg6 9.Be2 Nbd7 10.0–0 Nc5 11.h3 d4 12.Nb1 de3; 7...Be4 8.d3 Bg6 9.Be2 Nbd7 10.0–0 Bd6 11.f4 Nc5 12.Bf3 0–0) 8.Be2 Be2 9.Qe2 Nbd7 10.0–0 Bd6 11.Nf3 Nc5 12.Ba3 Nce4; 7.g3 Bd6 (7...Nbd7 8.Bg2 Bd6 9.0–0 Bg6 10.d3 0–0 11.Qe2 Nc5 12.d4 Ncd7; 7...Bg6 8.Ne2 Nbd7 9.Nf4 Bd6 10.Be2 0–0 11.0–0 Qe7 12.Ng6 fg6; 7...Bc5 8.Nh4 Bg4 9.Be2 Bh3 10.Bf1 Bf1 11.Kf1 Nbd7 12.Kg2 0–0; 7...Be7 8.Nh4 Bg4 9.f3 Bh5 10.Ne2 g5 11.g4 gh4 12.gh5 Rg8; 7...Bg4 8.h3 Bf3 9.Qf3 Nbd7 10.Be2 Bd6 11.e4 d4 12.Na4 c5; 7...a6 8.Nd4 Bg6 9.a4 Bc5 10.Be2 ab5 11.ab5 Nbd7 12.d3 0–0) 8.Bg2 0–0 9.Nd4 Bg6 10.0–0 Nbd7 11.f4 Nc5 12.d3 Qd7; 7.h3 Nbd7 (7...Bd6 8.g4 Bg6 9.g5 Nh5 10.Rg1 Nd7 11.Nd4 Bh2 12.Rg2 Be5; 7...Bc5 8.g4 Bg6 9.g5 Nh5 10.Na4 Bd6 11.Be2 a6 12.Nc3 ab5) 8.Nh4 Bg6 9.Be2 Bd6 10.0–0 0–0 11.Ng6 hg6 12.d4 Qe7; 7.Rb1 Nbd7 (7...Bd6 8.Nd4 Bg6 9.h4 e5 10.Nf3 Nbd7 11.h5 Bf5 12.h6 g6; 7...Bg6 8.Ne2 Nbd7 9.Nf4 Bd6 10.Be2 0–0 11.0–0 Qe7 12.Ng6 fg6) 8.Nd4 Bg6 9.h4 e5 10.Nf3 h5 11.Be2 Bd6 12.0–0 0–0) 7...Bb4 (7...Bc5 8.d4 Bd6 9.Nh4 Bg6 10.0–0 a6 11.g3 ab5 12.Nb5 Nc6; 7...Nbd7 8.Nd4 Bg6 9.0–0 Bd6 10.f4 0–0 11.f5 ef5 12.Nf5 Ne5; 7...Bg6 8.0–0 Nbd7 9.Nh4 Bd6 10.f4 0–0 11.f5 ef5 12.Nf5 Ne5; 7...Bd6 8.Nh4 Bg6 9.f4 Nbd7 10.0–0 0–0 11.f5 ef5 12.Nf5 Ne5; 7...Be7 8.Nd4 0–0 9.Nf5 ef5 10.0–0 Nbd7 11.d4 Nb6 12.Bd3 Ne4) 8.Nd4 Bg6 9.0–0 0–0 10.a3 Bc5 (10...Be7 11.f4 Nbd7 12.f5 ef5) 11.f4 (11.Nb3 Bd6 12.f4 Nbd7) 11...Bd4 (11...Nbd7 12.f5 ef5) 12.ed4 Be4 (12...a6 13.a4+=; 12...Qe7+=) 13.g4 h6 (13...Ne8!?=) 14.f5+/– (14.Ne4?! Ne4 15.a4 Qf6=) 14...ef5 15.d3 Ng4 (15...fg4 16.de4 de4 17.Bg4+/–) 16.Bg4 Qg5? 17.de4+– de4 18.Rf5 Qg6 19.Nd5 Re8 20.Nc7 h5 21.Rh5 Nd7 22.d5 Nf6 23.Bf6 gf6 24.Kh1 e3 25.Na8 Qe4 26.Bf3 Qf4 27.d6 Rd8 28.Qg1 (28.Qg1 Qg5 29.Rg5 fg5 30.Qg5 Kf8 31.Qd8 Kg7 32.Rg1 Kh6 33.Qh4) 1–0. usingprogram – kopernik38, internet, 2011.

6.Nc3 Bg6 A) 7.h4 e6 (7...Qd6 8.a4 c5 9.bc6 Nc6 10.Nb5 Qd7 11.Ne5 Qd8 12.h5 Bf5; 7...a6 8.Ne5 Nbd7 9.Ng6 hg6 10.ba6 ba6 11.Rb1 e6 12.Ne2 Bd6; 7...c5 8.Ne2 Nbd7 9.Nf4 e6 10.h5 Be4 11.Ng5 Bd6 12.h6 gh6) 8.Nd4 e5 9.Nf3 Nbd7 10.h5 Bf5 11.Bd3 Bd3 12.cd3 a6; B) 7.Ne2 Nbd7 (7...e6 8.Nf4 Bd6 9.Be2 Nbd7 10.0–0 0–0 11.d3 Qe7 12.Qd2 e5) 8.Nf4 e6 9.Be2 Bd6 10.0–0 0–0 11.d3 Nc5 12.a4 Re8; C) 7.Ba3 Nbd7 (7...e6 8.Bf8 Kf8 9.Bd3 Nbd7 10.0–0 e5 11.Be2 Kg8 12.d4 e4) 8.Be2 e5 9.Bf8 Kf8 10.0–0 Kg8 11.h3 Qe7 12.d4 e4; D) 7.Be2 e6 (7...Nbd7 8.Ba3 e5 9.Bf8 Kf8 10.0–0 Kg8 11.d4 e4 12.Nh4 Nf8) 8.Nh4 Nbd7 9.0–0 Bd6 10.f4 0–0 11.Ng6 hg6 12.Qe1 Nc5; E) 7.h3 e6 (7...Nbd7 8.Ne2 e6 9.Nf4 Bd6 10.Be2 0–0 11.0–0 Qe7 12.a4 Nc5; 7...a6 8.Bd3 ab5 9.Nb5 Nc6 10.Nbd4 Nd4 11.Bd4 e6 12.Qb1 Bd3) 8.Bd3 Nbd7 9.0–0 Nc5 10.Bg6 hg6 11.Qe2 Be7 12.Rfd1 0–0; F) 7.Bd3 Nbd7 (7...e6 8.Qe2 Nbd7 9.0–0 Nc5 10.Bg6 hg6 11.h3 Bd6 12.d3 e5; 7...a6 8.Qe2 ab5 9.Bg6 hg6 10.Qb5 Nc6 11.Qb7 Na5 12.Qb4 Nc6; 7...Qd6 8.a4 c5 9.bc6 Nc6 10.Nb5 Qd8 11.0–0 e6 12.Qe2 Bc5) 8.0–0 e6 9.Qe2 Nc5 10.h3 Bd6 11.Bg6 fg6 12.d3 0–0.

6.c4 c6 7.Be2 e6 8.0–0 Be7 (8...dc4 9.Bc4 Bd3 10.Bd3 Qd3 11.Bf6 gf6 12.Nc3=) 9.a4 Bg4 10.h3 Bf3 11.Bf3 dc4 12.bc6 (12.Qc2!?=) 12...Nc6+= (worse is 12...bc6 13.Na3+=) 13.Qc2 Qd3 14.Qd3 cd3 15.Bc6 bc6 16.Rc1 c5 17.Ra3 c4 (17...Rb8 18.Bf6 Bf6 19.Rd3–/+) 18.Rac3= Rb8 19.Ba3 Ba3 20.Na3 Ne4 21.Rc4 Nd2 22.Rc8 (better is 22.R4c3=) 22...Rc8?? (better is 22...Ke7 23.Rh8 Rh8+=) 23.Rc8+– Kd7 24.Rh8 Nf3 (24...h5 25.Ra8 e5 26.Ra7 Ke6 27.a5+–) 25.Kf1 Ne5 26.Ra8 (26.Rh7 Ke7+–) 26...Kd6 27.Ra7 Kd5 (27...g5 28.f4 gf4 29.ef4+–) 28.Rb7 Kc5 29.Rb5 Kd6 30.a5 Nc6 31.a6 Na7 32.Rb1 e5 33.Nb5 Nb5 1–0. madik – r3tract, gameknot.com, 2013.

6.Be2 e6 7.0–0 Bd6 8.d3 0–0 9.Nbd2 Nbd7 10.Rc1 (10.Nh4 Bg6=) 10...Rc8 (10...a6 11.ba6 Ra6 12.e4=) 11.Nb3 h6 12.c4 c6 13.bc6 bc6 14.Nbd4 Bh7 15.Qa4 Nc5 16.Qd1 (worse is 16.Qa7 Bd3 17.Qa3 dc4 18.Rc4 Bc4 19.Bc4 Qc7–+) 16...Re8 17.Nb3 Nb3 18.ab3 Rc7 19.c5 Be7 20.Be5 Rb7 21.d4 Ne4 22.Bd3 f6 23.Bg3 Ng3 24.fg3 Qb8 25.Bh7 Kh7 26.Qd3 Kg8 27.Rb1 Qc7 28.Nd2 e5 29.Qg6 Reb8 30.Rf2 e4 31.Rf4 Bd8 32.Rg4 Kf8 ½–½. Djurisic,D (1990) – Conic,Vidoje, Spring Open, Belgrade SRB, 2009.

6.Bf6 A) 6...ef6 A1) 7.Nc3 Bc5 (7...Bb4 8.Nd4 Bg6 9.h4 c5 10.bc6 Nc6 11.Bb5 0–0 12.Bc6 Bc3; 7...Be6 8.Nd4 Bc5 9.Qh5 0–0 10.Bd3 g6 11.Qh4 Nd7 12.0–0 Ne5) 8.Bd3 Be6 9.0–0 Nd7 10.Nd4 0–0 11.f4 Bd4 12.ed4 f5; A2) 7.Nd4 Bg6 (7...Qd7 8.c4 Bc5 9.Nf5 Qf5 10.cd5 0–0 11.Nc3 Nd7 12.Be2 Qg6; 7...Be4 8.Nc3 Bc5 9.Nb3 Nd7 10.f3 Bf5 11.Nd5 c6 12.Nf4 0–0; 7...Be6 8.Bd3 Bc5 9.Qh5 Bd4 10.ed4 f5 11.Nc3 Qf6 12.0–0 0–0; 7...Bc8 8.Qf3 Be6 9.Bd3 Bc5 10.Nc3 0–0 11.0–0 Qd6 12.Nf5 Qd8) 8.Nc3 Bb4 9.h4 c5 10.bc6 Nc6 11.Bb5 0–0 12.Bc6 Bc3; B) 6...gf6 7.Nc3 e5 (7...Rg8 8.Nd4 Bg4 9.Be2 Bc8 10.g3 e5 11.Nf3 Be6 12.0–0 Nd7; 7...e6 8.Nd4 Bg6 9.Bd3 Bd6 10.Rb1 Nd7 11.0–0 Nc5 12.Qe2 f5) 8.Nh4 Be6 9.Qh5 Nd7 10.Bd3 e4 11.Be2 Rg8 12.Qh7 Rg7.

5.Nf3 Bg4

6.c4 c6 7.a4 e6 8.h3 Bh5 9.Be2 Nbd7 (9...Bf3 10.gf3 dc4 11.Bc4=) 10.0–0 Bf3 11.Bf3 e5 12.d3 Bb4 (12...e4 13.Be2+=) 13.cd5 cd5 14.Qb3 Bd6 15.d4 e4= 16.Be2 Qe7 17.Nc3 Qe6 18.f3 0–0 (18...ef3 19.Rf3 Rc8 20.Bd3+=) 19.f4 (19.fe4 Ne4 20.Bg4 Qe7 21.Nd5 Qe8+–) 19...Bc7 (19...g6!?=) 20.Ba3+= Bd6 21.g4 (21.f5!? Qe7 22.Bb2+=) 21...Ba3=+ 22.Qa3 Nb6 23.a5 Nc8 (23...Nc4 24.Bc4 dc4 25.Rfd1=) 24.Kh2 h6 (24...Ne8 25.Rfc1=) 25.Na4 (25.g5 hg5 26.fg5 Ne8+/–) 25...b6 26.g5 hg5 27.fg5 Nh7 28.Bg4 Qd6 (28...Qg6 29.Bf5 Qh5 30.Nc3 Ng5 31.Bg4+=) 29.Qd6+/– Nd6 30.ab6 ab6 31.Nb6 Ra1 32.Ra1 Nb5 33.h4 f5 34.Bh3 f4 35.Bd7 Nc3 36.Nd5! Ne2?? 37.Be6 Kh8 38.Ne7 (38.Ne7 g6 39.Ra7+–) 1–0. Gimeno Higueras,Roberto (1980) – Garcia Maezo,Rebeca, Cullera Autonomico U16, 2003.

6.c4 Nbd7 7.cd5 Nd5 8.Be2 e5 (8...e6!?=) 9.Ne5+/– Bf5 10.0–0 f6 (10...Ne5 11.Be5 Nb4 12.Nc3+/–) 11.Nf3 Bc5 12.Qb3 N7b6 13.Rc1 Qd6 (13...Bd6 14.Nd4 Bg6 15.Bf3+/–) 14.Nh4+– Be6 (14...Bg6 15.h3 Bb4 16.Ng6 hg6 17.Qc2+–) 15.Rc5! Qc5 16.Ba3 Nb4?? (16...Nf4 17.ef4 Bb3 18.Bc5 Bc4+–) 17.Qe6 Kd8 18.Nc3 (better is 18.Qb3!? N6d5 19.Nc3 a5 20.ba6 Qa5 21.Nd5 Nd5+–) 18...a5 19.ba6! Ra6 (19...Na6 20.Bc5 Pinning (20.Bc5 Deflection); 19...ba6 20.Bf3 Combination) 20.Ba6 Qa5 (20...ba6 21.Nf5 Re8 22.Ng7+–) 21.Bb4 Qb4 22.Rb1 Qh4 (22...Qe7 23.Qe7 Ke7 24.Bb7 Rb8+–) 23.Rb6 Re8 24.Rd6! cd6 (24...cd6 25.Qd6 Mate attack) 25.Qd6 Kc8 26.Nb5 ba6 (26...Qh2 27.Kh2 ba6 28.Qc7) 27.Qc7 1–0. Kupec,Jan (2305) – Heineccius,August, remoteschach.de, 2010.

6.Be2 a6 7.Bf6 gf6 8.ba6 Na6 9.Nc3 e5 10.Qb1 Bc8 11.0–0 =.

6.Be2 c6 7.c4 dc4 8.Bc4 a6 (8...e6 9.h3 Bf5 10.Nd4=) 9.bc6 (9.Ne5!? Be6 10.ba6 Bc4 11.ab7 Ra2 12.Nc4 Ra1 13.Ba1+=) 9...Nc6+= 10.0–0 (10.Qb3!? e6 11.Qb7 Bf3 12.Bf6 gf6 13.gf3=) 10...e6= 11.d4 Bd6 12.Nbd2 Qc7 13.h3 Bf3 14.Nf3 (worse is 14.gf3 b5 15.Bd3 Nb4+=) 14...0–0 15.Bd3 h6 (15...Nb4 16.e4 Be7 17.Re1=) 16.Qc2 Rac8 17.Rfc1 Nb4 18.Qc7 Rc7 19.Rc7 Bc7 20.Bc4 Ne4 (20...Rc8!?=) 21.Rc1 Bd6 22.a3 Nc6 (22...Nd5 23.Bd3 Ndf6 24.Ne5+=) 23.Bd3+/– Nf6 24.Ba6 ba6 25.Rc6 Ne4 26.Ra6 Rb8 27.Rd6?? (better is 27.Bc3!+/–) 27...Nd6+= 28.Bc3 Rb1 29.Kh2 Ne4 30.Bb4 Nf2 31.Kg3 Nd3 32.Bd6 Rb6 33.Be7 Nb2 (33...f5–/+) 34.Ne5 (34.Nd2 Rc6+=) 34...Ra6 (34...Rb3 35.Kf3–/+) 35.Kf3 (35.Bb4 f6 36.Nd7 Nd3+=) 35...Ra4 (35...f6!? 36.Ng4 Kf7–+) 36.g3 (36.Bb4 Ra8=) 36...Nc4 Attacking the isolated pawn on a3 37.Nc4 Rc4 38.Bc5 f6 39.h4 Kf7 40.Ke4 g5 41.hg5 hg5 42.Kd3 Rc1 43.Kd2 (43.Ke2 f5–/+) 43...Ra1 (43...Rg1 44.Bd6–+) 44.Kc2 (44.Ke2 f5–/+) 44...f5 45.Kd3 Ke8 46.Kc4? (better is 46.Ke2!?–/+) 46...Kd7–+ 47.Kb5 Rb1 48.Kc4 Kc6 (48...Rg1 49.Bb4–+) 49.Kc3? (49.Be7 g4–/+) 49...Kd5 (49...Rg1 50.g4–+) 50.Kd3? (better is 50.Be7 g4 51.Bf6–/+) 50...Rb3–+ 51.Kd2 Ke4 52.Be7 (52.a4 Re3 53.a5 Rg3–+) 52...Re3 53.Bg5 Rd3 (53...Rd3 54.Kc2 Ra3–+) 0–1. Fournier,Frederic (2005) – Jakkos (2070), Active, 2004.

6.h3 Bh5 =.

6.Be2 Nbd7

7.0–0 a6 8.ba6 ba6 9.c4 dc4 10.Bc4 e6 11.h3 =.

7.0–0 e6 8.h3 (8.a4 Bd6 9.Nc3 0–0 10.h3 Bf3 11.Bf3=) 8...Bh5 9.a4 Bd6 10.c4 dc4 11.Na3 =.

7.a4 e6 8.h3 Bf3 (8...Bh5 9.0–0=) 9.gf3 (9.Bf3 Bd6=) 9...Bd6 (9...a6 10.Rg1+=) 10.a5 (10.f4 0–0=) 10...Qe7 (10...a6 11.ba6 ba6 12.c4+=) 11.Rg1= Rg8 12.d4 (12.c4 dc4 13.Bc4 0–0–0=) 12...b6 (12...0–0–0 13.c4 Bb4 14.Bc3 dc4 15.Bc4=) 13.ab6 cb6 14.c4 (14.Nd2 Bb4+=) 14...dc4 (14...Bb4 15.Bc3=) 15.Bc4 Nd5 (15...Bh2 16.Ba3 Bd6 17.Bd6 Qd6 18.f4+=) 16.Qb3 (16.Bd5 ed5 17.Qc2 Bb4 18.Ke2 Qe6+=) 16...Bb4 (16...N7f6 17.Nd2 Bb4 18.Ba3=) 17.Kf1 (better is 17.Nd2 N7f6 18.Ba3=) 17...Qh4?? (better is 17...N7f6!?=) 18.Rh1?? (18.Bd5 ed5 19.Qb4 Qh3 20.Ke2 Qe6+–) 18...Ne3? (better is 18...Ba5 19.Bd5 ed5 20.Qd5 Rc8+/–) 19.Qe3+– Nf6 (19...Qf6 20.Qe4 Rc8 21.Ra7+–) 20.Qe5 (20.Ra4!? Be7 21.d5 Bc5+–) 20...Ke7 (20...Kd7 21.Ba3 Ba3 22.Na3+–) 21.Qc7 Ke8?? (21...Nd7 22.Ra7 Ra7 23.Qa7 Rc8+–) 22.Ra4 (22.Ra7?! Ra7 23.Qa7 Nd7+–) 22...Be7 (22...Qh5 23.Ke2 Nd5 24.Bd5 Qd5 25.Rb4 Qd7+–) 23.Qc6 Kf8 24.Qa8 Ne8 25.Ra7 Qf4 (25...Bb4 26.Rd7 g6 27.Be6 fe6 28.Ba3+–) 26.Qc6 g5 (26...Bd6 27.Ra8 Ke7 28.Nc3+–) 27.Ra8 (27.Ra8 Kg7 28.Re8 Re8 29.Qe8+–) 1–0. marekt – guest, internet, 2007.

7.Ne5 Be2 8.Qe2 Ne5 9.Be5 e6 10.Nc3 Bb4 11.g4 Bc3 12.dc3 (12.Bc3 0–0+=) 12...h6 (12...Nd7 13.Bg3–/+) 13.h4 (13.Qf3 Qe7+=) 13...Ne4 (better is 13...Nd7!? 14.Bg3 Qf6–/+) 14.Bg7= Rh7 15.Bd4 f6 (15...Qd6 16.Qf3=) 16.Rh3 (16.f3 Nd6+=) 16...e5 17.f3 Nd6 18.Bc5 Nc4 19.Qd3 Qd7 20.f4 (better is 20.e4!? c6 21.bc6 bc6 22.Rb1=) 20...e4 21.Qd4 0–0–0 22.Ba7?? (better is 22.Rg3 Qb5 23.Ba7–/+) 22...Qg4–+ 23.Rh1 Qg3 24.Kd1 Qf3 25.Kc1 (25.Ke1 Qh1 26.Ke2 Qf3 27.Ke1 Rg7 28.Qc4 Rg1 29.Kd2 dc4 30.Bd4 Qg2) 25...Qh1–+ 26.Qd1 Qd1 27.Kd1 b6 (27...Rg8 28.a3 Rhg7 29.Ke2 Rg2 30.Ke1 Rg1 31.Ke2 R8g2) 28.a4 (28.Ke2 Rg7 29.Re1 Rg2 30.Kd1 Kb7 31.Bb6 Kb6–+) 28...Kb7 (28...Rg7 29.Bb8 Rdg8 30.Ke2 Rg2 31.Ke1 Rg1 32.Ke2 R8g2) 29.Bb6 Kb6 30.Ke2 Rg7 31.Kf2 Rg4 (31...Rdg8 32.a5 Kb5 33.Rf1 Rg2 34.Ke1 Rc2 35.f5 Rgg2 36.Rf2 Rc1 37.Ke2 Rgg1 38.Rf1 Rgf1 39.a6 Rce1) 32.Rh1 Rdg8 33.Rh2 Rg3 34.Rh1 Ne3 35.Rc1 Rf3 36.Ke2 (36.Ke1 Rg1 37.Ke2 Rg2 38.Ke1 Rf1) 36...Rg2 37.Ke1 Rf1 0–1. dado3 – ross60, Live Game Caissa's Web, 2004.

7.Ne5 Be2 8.Qe2 Ne5 9.Be5 e6 10.0–0 Bd6 11.f4 =.

7.Ne5 Ne5 8.Be5 Be2 9.Qe2 e6 10.0–0 Bd6 11.f4 0–0 12.Nc3 Qd7 (12...Qe7!?=) 13.Bf6+/– gf6 14.Qd3 (14.Qg4 Kh8+/–) 14...Bc5 15.Rf3 Rfd8 16.Na4 Bf8 17.Rh3 h6 18.Qd4 Bg7 19.Rg3 Kh8 (19...Qb5 20.Qf6 Qb1 21.Rb1 Kf8 22.Rg7 Rd7 23.Rh7 Ke8 24.Rh8) 20.Rb1 e5 21.fe5 (21.Qd3 c6=) 21...fe5 22.Qh4 d4 23.Qh5 Qd5 (23...de3 24.de3 a6 25.Nc5=) 24.e4 (24.Rf1 de3 25.de3 f5+=) 24...Qe4 25.Qf7 Rg8 26.Qc4 (worse is 26.Qc7 Rac8 27.d3 Rc7 28.de4 Rc2–/+) 26...b6 (26...Qf4 27.d3= (worse is 27.Qc7 Raf8 28.Rf3 Qd2 29.Rf8 Rf8–+)) 27.Nb2 (worse is 27.Qc7 Rac8 28.d3 Qe2–/+) 27...Raf8 28.Rd1 (worse is 28.Qc7 Qe2 29.Qc4 Qd2–/+) 28...Qf4 (28...c5 29.bc6 Rf6 30.c3+=) 29.Nd3+= (29.Qc7?? Qf2 30.Kh1 Qf1 31.Rf1 Rf1) 29...Qf5 30.Rf3 (worse is 30.Qc7 e4 31.Qc4 ed3 32.Qd3 Qd3 33.Rd3 Rf5–+) 30...Qh5 31.Qd5 (31.Rdf1 Rf3 32.Rf3 Qg5+=) 31...Rf3 32.Qf3 Qf3 33.gf3 c5 34.Kf1 Bf6 (34...a6 35.ba6 Ra8 36.a4+=) 35.Re1= Rg5 36.Re4 Kg7 37.Kf2 Kf7 38.h4 Rf5 39.Kg3 h5 40.c3 Ke6 41.c4 Kd6 42.Re1 Bg7 43.Nf2 Bh6 44.Ne4 Kd7 45.Rg1 ½–½. pierre – kitu, internet, 2008.

6.Be2 e6

7.0–0 a6 8.Ne5 Be2 9.Qe2 Nbd7 10.Nd7 Qd7 11.Bf6 =.

7.0–0 Nbd7 8.d3 (8.h3 Bh5=) 8...Bc5 (8...Bd6 9.Nc3=) 9.Nbd2 0–0 10.a4 (10.c4 a6=) 10...Re8 (10...Bd6 11.c4=) 11.c4 dc4 (11...Bd6 12.Nd4 Be2 13.Qe2=) 12.Nc4+= Bd6 (12...a6 13.Qc2+=) 13.e4 (13.h3 Bh5+=) 13...e5= 14.Re1 (14.a5 a6 15.Nd6 cd6=) 14...Bf3 (14...Qe7 15.d4 Ne4 16.Nfe5 Ne5 17.Ne5 (worse is 17.de5 Bc5–/+) 17...Be2 18.Qe2=) 15.Bf3 Rc8 (15...Bb4 16.Re2+=) 16.Ne3 (16.d4 Qe7+=) 16...c6 (16...Bb4 17.Re2=) 17.Nf5 Bb4 18.Rf1 (18.Re2 cb5 19.ab5 Qb6=) 18...cb5 19.ab5 Nc5 (19...Qb6!?=) 20.d4+= ed4 21.Bd4 (21.Qd4 Qd4 22.Bd4 Nfe4 23.Ng7 Red8+/–) 21...Nce4+= 22.Be4 (22.Ra4 Bc5 23.Be4 Ne4 24.Ng7+/–) 22...Re4= (22...Ne4 23.Ng7 (worse is 23.Bg7 Qd1 24.Rfd1 Rc5–/+) 23...Nf2 24.Nf5+– (24.Bf2?! Qd1 25.Rfd1 Kg7+=; worse is 24.Kf2 Rc2 25.Kg1 Ree2–/+)) 23.Ra4 Bc5 (23...Rc4 24.Ba7 Qe8=) 24.Qa1?? (better is 24.Bc5 Ra4 25.Ne7 Kh8 26.Nc8 Qc8 27.Qa4 Qc5 28.Ra1+–) 24...Bd4+= 25.Nd4 Qb6 26.Nf5 (26.Rd1 Ra8–/+) 26...Ra4 27.Qa4 Re8 28.Qc4 Qe6 29.Qf4 (29.Qe6 Re6 30.Rc1 g6–/+) 29...Qe4 (29...Qe5 30.Qe5 Re5 31.Rd1–/+) 30.Qg5+= Threatening mate: Qxg7 30...g6 31.Nd6 Qe5 32.Qe5 (32.Qg3 Nh5 33.Qa3 Qe7+=) 32...Re5–/+ 33.h3 (33.Ra1 Rd5 34.Nb7 Rb5–/+) 33...Ne8 (33...Rd5 34.Nb7 Rb5 35.Nd6–/+) 34.Nb7 (34.f4 Re6 (worse is 34...Nd6 35.fe5 Nb5 36.Rd1+/–) 35.Ne8 Re8+=) 34...Rb5–/+ 35.Nd8 White gets the initiative 35...Rb6 36.Re1 Nd6 37.Re7 a5 (37...a6 38.Kf1–/+) 38.Ra7+= Rb1 39.Kh2 Ra1 (39...Rb2 40.f4+=) 40.Ra8 (40.Rd7 Ne4+=) 40...Kg7–/+ 41.Ra7 Kh6 (better is 41...a4 42.Rd7 Ne4+=) 42.Rd7+= Rd1? (better is 42...Ne8 43.Nf7 Kg7 44.Ng5 Kg8 45.Rh7 a4+=) 43.Nf7 Kh5 (43...Nf7 44.Rd1 Kg5 45.Kg3+–) 44.Nd6 h6 (44...g5 45.Rh7 Kg6+–) 45.g4 Kh4 46.Nf5! gf5 47.Rd1 fg4 48.Rd4 a4 (48...Kg5 49.Rg4 Kf5 50.Ra4+–) 49.Ra4 (49.Rg4 Kh5+–) 49...Kh5 (49...h5 50.f3+–) 50.hg4 (50.hg4 Kh4 51.Kg2+–) 1–0. Mauron,Regis (1780) – Perodeau,Guillaume, St Quentin op 5th, 2002.

7.Nc3 Bd6 8.0–0 (8.h3 Bf3 9.Bf3 0–0 10.0–0 a6 11.a4=; 8.a4 a6 9.0–0 0–0 10.Re1 Re8 11.h3=; 8.d3 a6 9.0–0 c6 10.a4 0–0 11.h3=) 8...0–0 9.a4 Nbd7 10.h3 Bf3 11.Bf3 =.

7.Ne5 Be2 8.Qe2 Bd6 9.0–0 0–0 10.f4 Nbd7 11.d3 =.

7.h3 Bf3 8.Bf3 Bb4 9.a3 Bc5 10.c4 c6 11.bc6 bc6 12.cd5 (12.d4 Bd6+=) 12...cd5= 13.Nc3 0–0 14.0–0 Nc6 (14...Nbd7 15.d4 Bd6 16.Nb5=) 15.Na4 (better is 15.Rc1!? Ne5 16.Nd5 Nd5 17.Rc5+/–) 15...Bd6= 16.Qc2 Ne5 17.Be5 Be5 18.Rab1 Bc7 (18...Bd6 19.Rb3+=) 19.Rfc1= Qd6?? (better is 19...Bd6 20.Rb3 Rc8 21.Qc8 Qc8 22.Rc8 Rc8=) 20.Qc7+– Qc7?! (20...Qa3 21.Nc3 Rfc8+–) 21.Rc7 Ne8 22.Rcb7 (22.Rd7!? Nf6 23.Re7 Rfe8+–) 22...Nd6 23.R7b3 Nc4 24.Rd3 (24.Rd1 Rab8 25.Rc3 Nd6+–) 24...h6 25.Rb4 Ne5 (25...Rfb8 26.e4+–) 26.Rdb3 Nf3 27.gf3 f5 (27...Rfc8 28.d4+–) 28.Nc5 Rf6 (28...Rae8 29.f4+–) 29.Rb8 Rb8 30.Rb8 Kh7 (30...Kf7 31.Rb7 Kg8 32.Ra7+–) 31.Rb7 (31.Nd7 Rf7 32.Nf8 Kg8 33.Ne6 Kh7+–) 31...Rg6 (31...e5 32.Ra7 e4 33.fe4 de4 34.f3+–) 32.Kh2 a5 (32...e5 33.Ra7 Rc6 34.d4+–) 33.Re7 (33.Nd7 h5 34.Nf8 Kh6 35.Ng6 Kg6+–) 33...Rf6 (33...Kg8 34.Ne6 h5 35.d4+–) 34.Re6 (34.Ne6 h5+–) 34...Re6 35.Ne6 Kg6 36.Nf4 Kg5 37.Nd5 g6 (37...Kg6+–) 38.f4 Kh5 39.Kg3 (39.Nf6 Kh4 40.d4 g5 41.d5 a4 42.d6 g4 43.d7 gh3 44.d8Q h5 45.Nd7 Kg4 46.Ne5) 39...g5 40.fg5 (better is 40.e4!? gf4 41.Nf4 Kg5+–) 40...hg5 41.f4 g4 (41...a4 42.d4+–) 42.hg4 (42.h4!? Kg6+–) 42...fg4 43.Nf6 Kg6 44.Ng4 Kf5 45.d3 a4 46.Ne5 Ke6 47.Nc6 Kd5 48.Nd4 Kc5 49.f5 Kd6 50.Kg4 Ke5 51.Kg5 Kd6 52.f6 Kd7 White now must not overlook the idea Nf5 53.Kg6 Ke8 (53...Kd6 54.Nf5 Ke6 55.f7 Ke5 56.f8Q Ke6 57.Qd6) 54.Kg7 Kd7 55.f7 Kd6 56.f8Q Ke5 (56...Kc7 57.Ne6 Kd7 58.Qd8 Kc6 59.Qc7 Kb5 60.Qb7 Ka5 61.Qa7 Kb5 62.Nd4) 57.Qf5 (57.Qc5) 57...Kd6 58.Kf7 Kc7 59.Qe6 (59.Qb5 Kc8 60.Qc6 Kb8 61.Ne6 Ka7 62.Nc5 Kb8 63.Qb7) 59...Kd8 (59...Kb7 60.Qc6 Kb8 61.Ne6 Ka7 62.Nc5 Kb8 63.Qb7) 60.Qe7 (60.Qb6 Kc8 61.Ne6 Kd7 62.Qc7) 60...Kc8 61.Ne6 (61.Nb5 Kb8 62.Qc7 Ka8 63.Qc8) 61...Kb8 62.Nc5 Kc8 63.Qd7 Kb8 64.Qb7 1–0. Fournier,Frederic (1980) – NN, jeu.europe–echecs.com, 2013. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Nc6 4.b5 Nb8 5.e3 Bg4 6.Be2 e6)

7.h3 Bh5 8.a4 (8.0–0 Bd6 9.d3 0–0 10.c4 a6 11.Nc3=; 8.Nc3 Bd6 9.g4 Bg6 10.d3 h6 11.Rg1+=; 8.g4 Bg6 9.Ne5 Nbd7 10.Ng6 hg6 11.Nc3=) 8...Bd6 9.0–0 0–0 10.c4 a6 11.cd5 =.

7.0–0 Bd6

8.a4 0–0 9.Nc3 Nbd7 10.d3 Bf3 11.Bf3 =.

8.Nc3 0–0 9.h3 Bh5 10.a4 a6 11.Re1 =.

8.d3 0–0 9.Nbd2 Qd7 (9...a6!? 10.a4 Nbd7=) 10.Bf6+= Qb5?? (better is 10...gf6 11.c4 dc4 12.dc4 Bf5+=) 11.Nd4+– Be2 12.Qe2 (12.Nb5?! Bd1 13.Bg7 Kg7 14.Rfd1 Be5=) 12...Qa4 (12...Qd7 13.Qg4 g6+–) 13.Qg4 g6 14.Nf5! ef5 (14...Qg4?? 15.Nh6) 15.Qa4 (15…c6 16.Qh4+–) 1–0. Taulien,Hans_Juergen – Yigit,Aydin, remoteschach.de, 2003.

8.Ne5 Be2 9.Qe2 0–0 10.f4 Nbd7 11.d3 =.

8.Ne5 Be5 9.Be5 (9.Bg4?? Bb2 10.Na3 Ba1 11.Qa1 Qd6–+) 9...Be2 10.Qe2 a6 11.a4 (11.ba6 ba6 12.c4 Nbd7 13.Bf6 Nf6=) 11...Nbd7 12.Bb2 0–0 13.c4 dc4 14.Qc4 ab5 15.ab5 Ra1 16.Ba1 b6 (16...Ne8 17.d3=) 17.d4 Ne4 18.Rc1 The backward pawn on c7 becomes a target 18...Qf6 (18...Qh4 19.Qc2=) 19.f3 Ng5?? (better is 19...Nd6 20.Qc7 Qe7+=) 20.Qc7 (better is 20.f4 Ra8 21.Nc3+– (21.fg5?! Qg5 22.Bb2 Qe3 23.Kh1 Rc8+–)) 20...Qd8? (20...Qg6 21.Kf2 (21.Qd7?! Nh3 22.Kh1 Nf2 23.Kg1 Nh3 24.Kh1 Nf2 25.Kg1 Nh3=) 21...Qh5 22.Qd7 Qh2 23.Rc8 Nh3 24.Ke1 Qg1 25.Kd2 Qg2 26.Kc1+–) 21.Bb2 (better is 21.Qd8!? Rd8 22.h4 Nf3 23.gf3 f6+–) 21...Qc7 (better is 21...h6+–) 22.Rc7 Rd8 (22...Nf6 23.Ba3 Rb8 24.h4+–) 23.Na3 (better is 23.h4!? Nf6 24.Rc6 Nd5+–) 23...f5 (23...e5 24.de5 Nc5 25.Bd4+–) 24.Kf2 (24.Nc4 Nf6+–) 24...Nf7 (24...Nf6 25.Rc6+–) 25.Nc4 g5 26.Ba3 h5 Black plans g4 (26...Nf6 27.Nb6 Ne8+–) 27.Be7 Re8 (27...Ra8 28.Rd7 f4 29.Rb7 Ra2 30.Kf1+–) 28.Rd7 g4 (28...Rc8 29.Na3+–) 29.Nd6 (better is 29.Nb6!? gf3 30.gf3 Kg7+–) 29...Nd6 (29...Re7 30.Re7 Nd6 31.Re6 Nb5 32.Rb6+–) 30.Bd6 h4 (30...Ra8 31.Rb7+–) 31.Bc7 Rc8 32.Rd8 Rd8 33.Bd8 h3 (33...Kf7 34.fg4 fg4 35.Bh4+–) 34.g3 Kf8 35.Bb6 Ke8 (35...Ke7+–) 36.fg4 fg4 37.e4 Kd7 38.e5 (38.e5 Ke7 39.Ba5+–) 1–0. Trkn – Pettersson,Goeran, itsyourturn.com, 2000.

8.h3 Bh5 9.Nc3 =.

8.h3 Bh5 9.d3 a6 10.a4 0–0 11.c4 =.

4.Nf3 Bd7

5.a4 Nf6 6.e3 b6 (6...Bg4 7.Be2+=) 7.c4 dc4 (7...a6 8.cd5 ab5 9.ab5 Ra1 10.Ba1 Nd5 11.Ne5+/–) 8.Bc4+/– e6 9.0–0 Be7 (9...a6 10.d3+/–) 10.Nd4 Bc8? (10...c6 11.Qf3 Qc8 12.Qg3 cb5 13.Bb5+/– (13.Qg7?? Rg8 14.Qg8 Ng8 15.Bb5 Na6–+)) 11.Be2 (better is 11.Qf3!? c6 12.bc6+– (< 12.Nc6 Nc6 13.d3 Qc7+/–)) 11...Bb7 12.Bf3 Bf3 13.Qf3 (13.gf3?! a6=) 13...c6 (13...Qd5 14.Qg3+/–) 14.Nc6 Qc8?? (better is 14...Qd5 15.Qd5 ed5+–) 15.Ne7 Ke7 16.Nc3 (better is 16.Qa8 Nbd7 17.Ba3 Kd8 18.Qf3+–) 16...Nbd7 17.Rfc1 Qb8 18.Ne4 (18.Ba3!? Ke8+–) 18...Ne4 19.Qe4 Rg8 (19...f6 20.Rc6 Ne5 21.Ba3 Kf7 22.Bd6+–) 20.Qh4 (better is 20.Ba3!? Ke8+–) 20...Nf6 21.Rc3 (21.d3 Qd8+–) 21...Qb7 (21...g5 22.Qd4 Qd8 23.Qe5+–) 22.Rac1 Rac8 23.Rc8 (23.Qb4 Rc5 24.d4 Nd5+–) 23...Rc8 24.Bf6 gf6 25.Rc8 (25.Rf1!? Qd5 26.d4 h5+–) 25...Qc8+/– 26.Qb4 Ke8 27.Qb2 (27.Qc3!? Qd7 28.d4+–) 27...Qc4+/– 28.g3 (28.Qa1 Qd3+/–) 28...Qa4+= 29.Qf6 (better is 29.d4!?+=) 29...Qb5=+ 30.Qh8 Ke7 31.Qc3 (31.Qh7 a5 32.Qh4 f6 33.Qh7 Kd6=) 31...a6 32.d4 a5 33.Qc7 Kf6 34.Qd8 Kg7 35.e4? (35.d5 Qd5 (35...ed5?! 36.Qg5 Kf8 37.Qd8 Kg7 38.Qg5 Kh8 39.Qd8 Kg7=) 36.Qb6 Qd1 37.Kg2 Qa1–/+) 35...a4 (better is 35...Qb1!? 36.Kg2 Qe4 37.Kf1 Qb1 38.Kg2 Qb5–+) 36.e5–/+ a3 (better is 36...h6!?–/+) 37.Qf6= Kf8 38.Qh6?? (better is 38.Qd8 Kg7 39.Qf6 Kg8 40.Qd8 Kg7=) 38...Ke8–+ 39.Qh7 (39.Qc1 a2 40.Qc8 Ke7 41.Qc7 Qd7 42.Qc3–+) 39...a2 40.Qh8 Kd7 41.Qf8 (41.Qa8 Qb1 42.Kg2–+) 41...a1Q 42.Kg2 Qd5 (42...Qaf1 43.Kf3 Qbe2 44.Kf4 Qc1) 43.Kh3 Qf1 44.Kh4 Qd4 (44...Qe4 45.f4 Qh7 46.Kg5 Qf5 47.Kh4 Q1h3) 45.f4–+ Qfd1 (better is 45...Qc5 46.Qf7 Qe7 47.Qe7 Ke7 48.Kg5–+) 46.Qf7 Kc6 (better is 46...Kc8 47.Qe6 Kb7 48.Qf7 Ka6 49.Qa2 Kb5–+) 47.Qe8 (47.Qe6 Kb7 48.Qf7 Ka6 49.Qc7–+) 47...Qd7 48.Qa8 Kc5 (better is 48...Kb5 49.Qh8 Qe2–+) 49.Qe4 (49.Qf8 Kb5 50.Kg5–+) 49...Qd8 50.Kh3 Qf1 51.Qg2 Qh8 52.Kg4 Qg7 53.Kh4 Qh6 54.Kg4 (54...Qg2 55.f5 Qe4#) –+. TIROLOCO – justfish31, Live Game Caissa's Web, 2004.

5.e3 a6 6.ba6 Na6 7.Be2 Nc5 8.Nc3 (8.0–0 Na4 9.Ba3 Nf6=) 8...c6 (8...Nf6 9.0–0=) 9.0–0 (9.d4 Qb6 10.Qc1 Na6=) 9...Nf6 (9...Bg4 10.Ne5 Be2 11.Ne2=) 10.d3 (10.d4 Nce4=) 10...e6 11.Ne5 (11.d4 Na6=) 11...Bd6 12.f4 0–0 13.Qe1 b5 14.Qg3 b4 (14...Ne8 15.d4 Na4 16.Na4 Ra4 17.Nd3=) 15.Nd1 Ra7 16.Bd4 Rb7 (16...Ne8 17.c3 b3 18.a3=) 17.c3+/– b3 18.Nb2 (18.Nf2 Be7+/–) 18...Be8 (18...Ne8 19.Bc5 Bc5 20.Na4+=) 19.a4 (19.Nf3 Ncd7+/–) 19...Ra7 (19...Nce4!? 20.de4 Ne4 21.Nc6 Ng3 22.Nd8 Ne2 23.Kf2 Rb8 24.Ne6 fe6 25.Ke2 g5+/–) 20.c4+/– Na4?? (better is 20...Be7+/–) 21.Ra4 (21.Ba7!? Nb2 22.c5 Bb8+–) 21...Ra4 22.Na4 Qa5 23.c5 Qa4 24.cd6 b2 (24...c5 25.Bb2 d4+–) 25.d7! Nd7 (25...Bd7 26.Nd7) 26.Nd7 f6 (26...Qd4 27.ed4 Bd7 28.Rb1+–) 27.Nf6 Rf6 28.Bf6 g6 (28...Bg6 29.Bb2 Qb5+–) 29.f5 ef5 30.Qc7 Bf7 31.Qc8 (31...Be8 32.Qe8#) 1–0. Trkn – guest767, ICC, 2004.

5.e3 e6 6.Be2 Be7?? 7.Bg7+– Bf6 8.Bh8 Bh8 9.d4 c5 10.bc6 Nc6 11.0–0 e5 12.de5 Ne5 13.Nd4 Qg5 (13...Nf6 14.Nc3+–) 14.f4 Qg6 (14...Qh6+–) 15.fe5 Be5 16.Nd2 Bh3 (16...Qh6 17.N2f3+–) 17.Bb5 Ke7 18.Qf3 Be6 19.Rab1 Qh6 20.h3 Bd4 (20...Nf6 21.Bc6! Rg8 22.Rb7 Kf8 23.Ne6 fe6 24.Nc4+–) 21.ed4 Qd2 (21...Kf8 22.Bd7! Rd8 23.Rb7 Ne7+–) 22.Qa3 Kd8 23.Qf8 Kc7 24.Rf7! Bf7 (24...Bd7 25.Qc5 Kd8 26.Rf8 Be8 27.Re8) 25.Qc5 Kd8 26.Qd6 Kc8 27.Qd7 Kb8 28.Qd8 1–0. guest2176 – guest575, ICC, 2003.

5.e3 e6 6.Be2 Nf6 7.0–0 Bc5 8.Be5 0–0 9.d4 Bd6 10.Nbd2 Be5 11.de5 Ne8 12.c4 f6 13.Qb3 dc4 (13...c6 14.e4 Nc7 15.b6 ab6 16.ef6 Qf6 17.Qb6+=) 14.Bc4–/+ Kh8 15.Rad1 f5 16.Be6+– Bb5?? 17.Qb5 b6 18.Qb1 g6 19.e4 fe4 20.Qe4 Qe7 21.Qa8 Qe6 22.Qb8 Kg7 23.Qa7 Rf7 24.Ng5 Qe5 25.Nf7 Kf7 26.Rfe1 Qf5 27.Nf3 Kf8 28.Re8! Ke8 29.Qb8 Kf7 30.Qc7 Kf6 31.Rd6 Qe6 32.Qd8 Kf5 33.Qg5 Ke4 34.Rd4 1–0. b4_player – uoprgo (1670), GameColony.com, 2002.

5.e3 Nf6 6.Nc3 e6 7.Be2 Bb4 8.0–0 0–0 9.a3 (9.a4 Bd6=) 9...Bc3 (9...Bd6!?=) 10.Bc3+= Qe8 (10...Ne4 11.Bb4 Re8 12.d3+=) 11.Rb1 Ne4 12.Be5 Nd6 13.a4 f6 14.Bg3 b6 15.Nd4 e5= 16.Nb3 Nf5 17.Bf3 Ng3 18.fg3 c6= 19.bc6 Bc6 20.d3 Qe6 21.Qe2 Ba4–/+ 22.c4 Bc6 23.Rbc1 Rd8 24.d4 e4 25.Bg4–/+ f5?? 26.Bf5+/– Qd6 27.cd5 Bd5 28.Nd2 a6 29.Be4 Be4 30.Ne4 Qg6? 31.Qf3 Nd7+/– 32.Rc7 h6?? 33.Nc3 Rf8?? 34.Qe4 Rf1 35.Kf1 Qe4 36.Ne4 Rf8 37.Kg1 Nf6+/– (37...Nf6 38.Nf6 Rf6+/–). TriAngel – HaveFun, ICC, 1999.

5.e3 h6 6.a4 e6 7.Be2 c6 (7...Nf6 8.0–0+=) 8.c4 (8.0–0 Nf6+=) 8...dc4= 9.Bc4 cb5 (9...Nf6 10.0–0+=) 10.ab5 Ne7 (10...Nf6 11.Bd4+=) 11.0–0 Nd5 (11...Nf5 12.Ne5+=) 12.d3 f6 (12...Nb6 13.Be5+=) 13.Nc3 (13.Nd4 Qe7+/–) 13...Nc3 14.Bc3 Bd6 15.d4 (15.Nd4 Qe7+/–) 15...Qc7 (better is 15...0–0+/–) 16.e4?? (16.Qb3 Kf7 17.b6+–) 16...Qc4–+ 17.Qd2 Bb5 18.Rfe1 Nd7 19.e5 fe5 20.de5 Be7 21.Rac1 Qd5 22.Qc2 Rc8 23.Qb2?? a6 24.Red1 Qe4 25.Nd4 0–0 26.Ne6?? Rf5 27.Nd4 Re5 28.Nf3?? Rg5 29.Kh1? Rg6 30.Rd4 Qc6 31.Rdd1 Bf6 32.Bf6= (32...Nc5 33.Bd4=+). stoker – wands, Caissa.com, 2004.

3.b5 Nd4??

4.Bd4 b6 5.Nc3 A) 5...Nh6 6.Nf3 (6.e3 Nf5 7.Nf3 f6 8.g4 Nh6 9.g5 Nf7 10.gf6 gf6 11.Na4 a6) 6...Nf5 7.e3 f6 8.g4 Nh6 9.g5 Nf7 10.gf6 gf6 11.Nb1 e5; B) 5...Qd6 6.f4 Qf4 7.Nf3 Qf5 8.e3 Nf6 9.Bd3 Qh5 10.0–0 e6 11.Qe1 Bb7.

4.Bd4 b6 5.c4! dc4 (5...c5 6.bc6 dc4 7.Nf3 Bg4 8.e3 Qd5 9.Nc3 Qc6 10.Ne5 Bd1 11.Nc6 Bg4; 5...c6 A) 6.e3 c5 (6...cb5 7.cb5 f6 8.f4 Bf5 9.Nc3 e6 10.Nf3 Bd6 11.Be2 Ne7) 7.Be5 f6 8.Bb2 e5 9.cd5 Qd5 10.Nc3 Qf7 11.Nf3 Bb7; B) 6.bc6 dc4 7.e3 Qc7 8.Bc4 e5 9.Bc3 Ne7 10.Qh5 Nc6 11.Nf3 g6) 6.e3 Bb7 (6...Nf6 7.Bc4 a6 8.Nc3 ab5 9.Nb5 Bb7 10.Nf3 e6 11.Be5 Bd6) 7.Nf3 (7.Bc4?! Bg2 8.Bf7 Kf7 9.Qh5 g6= 10.Qg4 Bh1 11.Bh8 Nf6) 7...e6 (7...a6 8.Bc4 e6 9.Nc3 ab5 10.Bb5 c6 11.Be2 c5) 8.Bc4 Nf6 9.0–0 Bd6 10.Ne5 Ne4 (10...0–0 11.Qe2+– Nd5) 11.Qg4 Ng5 (11...Qg5 12.Qg5 Ng5 13.f4+–; 11...Qf6+– 3.81) 12.f4 f6 (12...Be5 13.Be5 Ne4 14.Qg7 Rf8+–) 13.Qh5 Kf8 (13...g6 14.Ng6 (14.fg5?! gh5 15.Nf7 Kf7 16.Bf6 Qg8 17.Bh8 Ke8=) 14...hg6 15.Qh8 Kf7 16.Qd8 Nh3 17.gh3 Rd8 18.d3+–) 14.fg5 g6 (14...Be5 15.Be5 Qe8+–) 15.Ng6! Kg8 (15...hg6 16.Qh8) 16.Be6 Kg7 17.Qh6 1–0. Taulien,Hans_Juergen (2350) – Vieira,Marcos (1845), remoteschach.de, 2006.

4.Bd4 b6 5.e3 a6 A) 6.c4 ab5 (6...Nf6 7.cd5 Nd5 8.Qb3 e6 9.Nc3 Nc3 10.dc3 f6 11.Rd1 Bd6) 7.cd5 b4 8.Qb3 Nf6 9.Nf3 Ra5 10.Bc4 Ba6 11.Ba6 Ra6; B) 6.ba6 c5 (6...Ba6 7.Ba6 Ra6 8.Qe2 Ra5 9.Nf3 f6 10.Bc3 Ra4 11.Bb2 e6) 7.Bb5 Bd7 8.Bd7 Qd7 9.Bb2 Ra6 10.Nf3 Qb5 11.a3 Qb2; C) 6.Nc3 Nf6 (6...e6 7.Nf3 f6 8.e4 de4 9.Ne4 Bb7 10.Nc3 e5 11.Be3 Bb4) 7.Nf3 e6 8.Ne5 Bb7 9.Bd3 Bc5 10.Bc5 bc5 11.ba6 Ba6.

4.Bd4 b6 5.e3 f6 A) 6.Bd3 Nh6 (6...g6 7.f4 a6 8.Nf3 ab5 9.Bb5 Bd7 10.Be2 Bg7 11.0–0 Nh6) 7.f4 a6 8.Nc3 Nf5 9.Qf3 Nd4 10.ed4 e6 11.Qh5 Ke7; B) 6.f4 a6 (6...Nh6 7.Nf3 a6 8.a4 e6 9.Bd3 Bb4 10.0–0 0–0 11.Qe2 Bd6) 7.Bd3 Nh6 8.Nc3 Nf5 9.Qf3 Nd4 10.ed4 e6 11.Qh5 Ke7.

4.Bd4 b6 5.e3 Nh6 A) 6.Nc3 Nf5 7.Nf3 f6 8.g4 Nh6 9.g5 Nf7 10.gf6 gf6 11.Na4 e5; B) 6.Bb2 a6 (6...e6 7.Nf3 a6 8.Ne5 Qh4 9.Nc6 Bb7 10.g3 Qg4 11.Be2 Qf5) 7.Nf3 f6 8.Nd4 e5 9.Nc6 Qd6 10.c4 Be6 11.cd5 Bd5; C) 6.c4 Nf5 (6...e6 7.cd5 ed5 8.Qc2 Bd7 9.Nf3 Rc8 10.Nc3 Bf5 11.Qa4 a5) 7.Nf3 Nd4 8.Nd4 Bb7 9.cd5 Qd5 10.Nc3 Qd6 11.Nc6 Bc6.

4.Bd4 Qd6 5.Nf3 +–.

4.Bd4 Qd7 5.e3 e6 6.Qg4 (6.Nc3 Ne7+–) 6...Nh6 7.Qh3 (7.Qh5 Nf5+–) 7...Nf5 8.Nf3 Nd4 9.Nd4 (9.ed4 Bd6+–) 9...Bc5 (9...Qd8 10.Qg3+–) 10.Nb3 Be7 11.d4 Bb4 (11...a6 12.ba6 b6 13.c4+–) 12.c3 Be7 13.Bd3 c6 14.bc6 bc6 (14...Qc6 15.Qf3+– (15.Bh7?! e5 16.g4 e4+–)) 15.0–0 0–0 (15...a5 16.Qg4 (16.Bh7?! g6+–) 16...0–0 17.c4+–) 16.N1d2 (16.Qh7) 16...Qc7 (16...h6+–) 17.Qh7 1–0. Trkn – S.M.K>999, itsyourturn.com, 2001.

4.Bd4+– Bd7 5.e3 f6 (5...e6 6.Nc3+–) 6.Qh5 g6 7.Qd5 c6 8.Qb3 cb5 9.Bb5 Rc8 (9...e5 10.Bc4 Nh6 11.Bb2+–) 10.Bd7 (10.Ba7 Bb5 11.Qb5 Qd7 12.Qd7 Kd7+–) 10...Qd7 11.Nf3 b6 12.0–0 e5 13.Bb2 h5 14.d3 Ne7 15.Nbd2 Bh6 (15...g5 16.Ne4 Bg7 17.d4+–) 16.Ne4 f5 (16...Bg7+–) 17.Nf6 Kd8 18.Nd7 Kd7 19.Ne5 Kd6 20.Nf7 Kd7 21.Nh8 Rh8 22.Bh8 f4 23.Qb5 (better is 23.ef4!? Bf4 24.Qa4 Nc6 25.Qf4 h4+–) 23...Kc7 24.ef4 Bf4 25.Qc4 Kb7 26.Qf4 Nd5 27.Qf7 Kc6 28.Qg6 Kc5 29.d4 Kc4 30.Qc6 Kb4 31.Qd5 (31.Rfb1 Ka5 32.Qb5) 31...a5 (31...b5 32.Rab1 Kc3 33.Qb3 Kd2 34.Qd3) 32.Qb3 1–0. Valpa – Nichju, playchess.de, 2006.

4.Bd4 e5 5.Be5 d4 (5...Bg4 6.h3 Bf5 7.Nc3+–) 6.Nf3 Bg4 7.c3 (7.Nd4?! f6 8.Bc7 Qc7+–) 7...Bf3 (7...dc3 8.Nc3 f6 9.Bg3+–) 8.ef3 d3 (8...dc3 9.dc3 Qe7 10.Qe2+–) 9.Qa4 Qd5 (9...Qe7 10.Qe4 0–0–0 11.Bd4+–) 10.Bc7 Nf6 (10...Bc5 11.Qe4 Qe4 12.fe4+–) 11.b6 Nd7 (11...Ke7 12.ba7 b5 13.Qf4+–) 12.ba7 (12.Qe4 Qe4 13.fe4 a6+–) 12...Bc5 (12...b5 13.Qe4 Qe4 14.fe4 Ra7 15.Bf4+–) 13.Qe4 Qe4 14.fe4 0–0 (14...Ra7 15.Bd3 Ke7 16.Bb5+–) 15.Bd3 Rfc8 16.Bf4 Nf6 17.Ke2 (17.e5 Nd5 18.Bg3 Ra7+–) 17...Ra7 18.f3 Nh5 19.Be3 Be3 20.Ke3 g5 21.g3 Nf6 22.a4 b6 (22...Ra5 23.Bb5+–) 23.Bb5 Re7 (23...Ne8 24.h4 Nc7 25.Na3 gh4 26.Rh4 Nb5 27.Nb5+–) 24.c4 g4 25.d3 (25.d4 gf3 26.e5 Ne8+–) 25...gf3 26.Kf3 Rd8 27.c5! bc5 28.a5 Rb7 29.Bc4 Nd7 30.Kf4 Kg7 31.a6 Ra7 32.Nc3 Nb6 33.Nb5 Raa8 34.a7 h6 (34...Rd7 35.Ra6 Nc4 36.dc4+–) 35.Nc7 Rac8 36.Nd5 Na8 37.Rhb1 Rd7 38.Ra6 f5 (38...Rf8+–) 39.ef5 Rcd8 40.Rb8 Rd5 41.Rg6 Kh7 42.Bd5 Rd5 43.Ra8 Rd4 44.Ke5 Ra4 45.Rb6 1–0. Sternik,Ryszard – Preston,William, corr MCO, 1997.

4.e3?? Nf5= 5.Bd3 Nh4 6.Qh5 (6.g3 Ng6 7.h4 Qd6 8.Nf3 Bg4 9.h5 Bf3 10.Qf3 Ne5 11.Be5=) 6...Ng6 7.Nf3 Nf6 8.Bf6 gf6 9.0–0 e5 10.Bf5 Bf5 11.Qf5 =.

4.e3?? Nf5= 5.Be2 A) 5...f6 6.Nf3 (6.d4 Nh4 7.Bd3 g6 8.g3 Nf5 9.c4 dc4 10.Bc4 Nd6 11.Bd3=; 6.Ba3 Nh4 7.Bd3 g6 8.g3 Nf5 9.Nf3 e5 10.Bf8 Kf8 11.e4=; 6.f4 a6 7.Nf3 ab5 8.Bb5 c6 9.Bd3 Ngh6 10.0–0 e6 11.Nc3=; 6.c4 e5 7.Nc3 d4 8.ed4 ed4 9.Ne4 d3 10.Bf1 Nh4 11.Qh5+=) 6...e5 7.0–0 Bd6 8.d3 Be6 9.c4 c6 10.Nbd2 dc4 11.dc4=; B) 5...Nf6 6.Nf3 e6 7.0–0 Bd6 8.Be5 0–0 9.d4 a6 10.Nc3 Ne4 11.Qd3=; C) 5...e6 6.Nf3 Nf6 7.0–0 Bd6 8.Be5 Nh4 9.Bd6 Nf3 10.Bf3 Qd6 11.d4=; D) 5...Nh4 6.g3 Ng6 7.Nf3 Bh3 8.c4 e6 9.cd5 ed5 10.Nc3 Be7 11.Qc2=.

4.e3?? Nf5= 5.Nf3 e6 (5...Nf6 6.a3 (6.Be2 e6 7.0–0 Bd6 8.Be5 0–0 9.d4 a6 10.Nc3 Ne4 11.Qd3=; 6.Nc3 Qd6 7.Bd3 e5 8.e4 de4 9.Ne4 Ne4 10.Be4 Qb4 11.Bf5=; 6.Be5 Ne4 7.d3 Ned6 8.d4 f6 9.Bf4 g5 10.Bd6 Nd6 11.Nc3=; 6.Bd3 e6 7.0–0 Bd6 8.Bf5 ef5 9.Bd4 0–0 10.Nc3 Be6 11.d3=) 6...e6 7.Bd3 Bd6 8.0–0 0–0 9.Nc3 Bd7 10.Qe2 c5 11.bc6=; 5...f6 6.d4 (6.Ba3 Nd6 7.Nc3 e6 8.Be2 Ne7 9.0–0 e5 10.Bb4 Be6 11.a4=) 6...Nd6 7.Nc3 e6 8.Bd3 Qd7 9.0–0 Ne7 10.a4 Ng6 11.Re1+=; 5...Nd6 6.a4 (6.Nc3 Nf6 7.Be2 Bg4 8.0–0 e6 9.Ne5 Be2 10.Qe2 Be7 11.a3=; 6.Na3 Nf6 7.Be2 Bg4 8.0–0 e6 9.d3 Be7 10.c4 a6 11.Qb3=; 6.Be2 Bg4 7.0–0 e6 8.Nc3 Bf3 9.Bf3 Nc4 10.Rb1 Bd6 11.Ba1=) 6...Nf6 7.Be2 Bg4 8.Bf6 ef6 9.0–0 Be7 10.Nd4 Be6 11.a5+=) 6.Be2 (6.Bd3 Nf6 7.0–0 Bd6 8.Be5 Nh4 9.Bd6 Nf3 10.Qf3 Qd6 11.Nc3=; 6.Nc3 Nf6 7.Bd3 Bd6 8.e4 de4 9.Ne4 Be7 10.0–0 0–0 11.Nf6=; 6.a3 Nf6 7.Bd3 Bd6 8.0–0 0–0 9.Nc3 Bd7 10.Qe2 c5 11.bc6=) 6...Bd6? (better is 6...Nf6= 7.0–0 Bd6 8.Be5 0–0 9.d4 a6 10.Nc3 Ne4 11.Qd3=) 7.g4+– Ne3 8.de3 f6 9.c4 Ne7 10.Nc3 Bb4 (10...c6 11.Rg1+–) 11.Qb3 Bc3 12.Bc3 e5 13.cd5 Nd5? (13...Qd5 14.Qa4 Qf7+–) 14.Rd1 c6 (14...Be6 15.e4 c6 16.bc6 bc6 17.ed5 cd5 18.g5+–) 15.e4 Be6 16.ed5 (16.bc6 bc6 17.ed5 cd5+–) 16...cd5 17.h3 (17.Bc4 Qc8 18.Bd5 Bd5 19.Rd5 Qg4+–) 17...Qb6 (17...Rc8 18.g5!+–) 18.Bb4 0–0–0 (18...Rc8 19.Qa4+–) 19.Qa3 Rd7 (19...Kd7 20.Rc1 Rc8 21.Bc5+–) 20.Rc1 (20.Ba5 Qd6 21.Rc1 Kb8+–) 20...Kb8 (20...Rc7 21.Kd2 Rc4+–) 21.Bc5 Qc5 22.Qc5 Rc8 23.Qc8 1–0. Piriyev,Maksat – Celik,Mustafa, chessmoon.com, 2011.

3.b5 e5

4.bc6 bc6 5.Be5 Be7 1–0. Trkn – ardeeyana, itsyourturn.com, 2001.

4.bc6+– bc6 5.Be5 f6 6.Bb2 (6.Bg3 Bd6+–) 6...Rb8 7.Bd4 c5 8.Be3 g5 (8...Bd6 9.c3+–) 9.d4 cd4 10.Qd4 Ne7? (10...c5 11.Qa4 Qd7 12.Qd7 Bd7+–) 11.Qf6 (11.Bg5 Bg7 12.Bf6 c5+–) 11...Rg8 12.Ba7 (better is 12.Qc3 Bg7 13.Bd4 Bd4 14.Qd4+–) 12...Rb2 13.Qb2 Nc6 Decoy to b2 14.Qb3 (14.Qb5 Qf6 15.c3 Bf5+–) 14...Be6 (14...Na7 15.Qa4 c6 16.Qa7+–) 15.e3 Na7 16.Qa4 c6 17.Qa7 Rg7 18.Qd4 Rd7 19.Nc3 Bd6 (19...Bg7 20.Qc5 Qf6 21.Nge2+–) 20.Bd3 (20.Nf3 g4 21.Qh8 Bf8+–) 20...h5 (20...Qe7 21.Nf3 g4 22.Ne5+–) 21.Bg6 Ke7 22.Qg7 Bf7 23.Qf7 1–0. Long_Knights – KaiKerling, ChessWorld.net, 2005.

4.bc6 bc6 5.Be5 f6 6.Bf4 Bd6 7.Bd6 Qd6 (7...cd6 8.Nf3+–) 8.e3 Ne7 9.Qh5 Ng6 (9...g6 10.Qd1+–) 10.Bd3 0–0 (10...f5 11.Bf5 Bf5 12.Qf5+–) 11.Bg6 hg6 12.Qg6 Qe5 13.d4 Qd6 (13...Bf5 14.de5 Bg6 15.ef6 Rf6 16.c4+–) 14.Nf3 Be6 15.Nbd2 Rab8 16.Nb3 Bf7 17.Qd3 Rb7 (17...Rb6 18.Nc5+–) 18.Nc5 Rb6 19.0–0 Be8 (19...Rfb8 20.Rfe1+–) 20.Qf5 Kf7 (20...Bf7 21.Rfb1+–) 21.a4 Rh8 (21...Kg8 22.Rfb1+–) 22.a5 Rb8 23.Rfb1 Rd8 (23...g6 24.Qd3 Rb1 25.Rb1+–) 24.Nb7 Qd7 (24...Qe7 25.Nd8 Qd8+–) 25.Ne5 Kg8 26.Nd7 Bd7 27.Qf4 Re8 28.Qc7 Re7 29.Qd8 Kf7 30.Qh8 Re8 31.Nd6 Ke7 (31...Ke6 32.Ne8 c5 33.Qg8 Kf5 34.Ng7 Kg6 35.Ne8 Kh6 36.Qg7 Kh5 37.Nf6 Kh4 38.Qg3) 32.Qg7 Kd6 (32...Ke6 33.Nb7 Ra8 34.Nc5 Kf5 35.g4) 33.Rb7 Re7 34.Qf6 Re6 35.Qg7 Re7 36.Qg3 Ke6 37.Qg6 1–0. kamret (2145) – tienguyen2005 (1755), GameColony.com, 2003.

4.bc6 d4 5.Nf3 e4 (5...f6 6.c3 dc3 7.Nc3+–) 6.Nd4 Nf6 (6...Bd6 7.Nf5! Bf5 8.Bg7+–) 7.c3 b6 (7...Rb8 8.Qa4 bc6 9.Nc6+–) 8.g3 (8.d3 Bd6+–) 8...Bc5 9.Bg2 0–0 10.0–0 Re8 11.e3 (11.d3 ed3 12.Qd3 Qe7+–) 11...Qd5 (11...Ba6 12.Re1+–) 12.d3 (12.f3 ef3 13.Qf3 Qf3 14.Bf3 Ba6+–) 12...a5 (12...Bd4 13.cd4 Qb5 14.Qd2 Qd3 15.Qd3 ed3 16.d5+–) 13.c4 (13.de4 Ne4 14.Nd2 f5+–) 13...Qd6 (13...Qe5 14.de4 Ne4 15.Nd2 Nd2 16.Qd2+–) 14.de4 (14.Nb5 Qc6 15.Nd2 Rb8 16.Bf6 Qf6 17.Nc7 Rd8+–) 14...Ba6 (14...Ne4 15.Nc3 Nc3 16.Bc3+–) 15.Nd2 (15.Nb5 Qc6 16.e5 Ne4+–) 15...Bd4 (15...Bb4 16.N4b3 Qc6 17.e5+–) 16.ed4 Qb4 17.Qc2 Qe7 (17...Ng4 18.Rfb1+–) 18.f4 (18.e5 Nh5+–) 18...Ng4 (18...Rad8 19.e5 Ng4 20.Rae1+–) 19.Rae1 Ne3 (19...Bc8+–) 20.Re3 Rad8 21.d5 Qc5 (21...Kh8 22.Qc3 Qf8 23.e5+–) 22.Qd3 (22.Qc3!? Qf8 23.Ba3 Re7+–) 22...b5 (22...Qd6 23.e5 Qh6 24.Qf5+–) 23.Rc1 (23.Qc3 f6 24.cb5 Qb5+–) 23...b4 (23...bc4 24.Qd4 Qd4 25.Bd4+–) 24.g4 (24.Nb3 Qe7+–) 24...Qd6 (24...Bc8 25.Bd4 Qe7 26.h3+–) 25.f5 (25.e5 Qe7+–) 25...Qf4 26.Rf1 Qg4 (26...Qg5 27.Rg3 a4+–) 27.Rg3 Qh4 28.Bg7 Qh5 29.Bh6 Kh8 (29...Qg6 30.fg6 fg6 31.Qd4 Re5 32.Qe5 Rd5 33.Qg7) 30.Qd4 1–0. johorean (2100) – brightnight (1730), net–chess.com, 2005.

3.b5 Ne5??

4.Be5 b6 5.Nf3 f6 6.Bb2 e5 7.e3 e4 8.Nd4 Bd7 (8...a6 9.c4 ab5 10.Qh5 g6 11.Qd5 Qd5 12.cd5+–) 9.Be2 (better is 9.Qh5 g6 10.Qd5 Ne7 11.Qe4 Bg7+–) 9...Qe7 10.Ba3 Qf7 11.Bf8 Qf8 12.c4 c5 (12...dc4 13.Bc4 Qc5+–) 13.bc6 Bc8 14.cd5 Ne7 (14...Qc5 15.Nc3+–) 15.Nc3 Bf5 (15...Nf5 16.Ncb5 Kd8 17.c7 Ke8 18.Qc2 Nd4 19.Nd4+–) 16.Nf5 (16.d6 Bc8 17.d7 Bd7 18.cd7 Kd8 19.Ne6 Kd7 20.Nf8 Rhf8 21.Qa4 Nc6 22.Qe4 a6+–) 16...Nf5 17.Ne4 Qb4 18.Nc3 Ne7 19.Qb3 a5 20.0–0 (20.Rb1 Qb3 21.Rb3 Nc8+–) 20...0–0 (20...Rd8 21.c7 Rc8 22.Qb4 ab4 23.Nb5 Nd5 24.Rfc1+–) 21.Rfb1 Qd6 22.Nb5 Qe5 (22...Qb4 23.Qb4 ab4 24.c7+–) 23.d4 Qd5 (23...a4 24.Qb4 Nd5 25.Qf8 Kf8 26.de5 fe5 27.c7+–) 24.Bc4 a4 25.Bd5 Nd5 26.Qd5 (26...Kh8 27.Nd6+–) 1–0. HFlew – Ralf, HCL–T067 playchess.de, 2003.

4.Be5 Rb8 5.e3 (5.Bd4 Ra8+–) 5...h5 (5...f6 6.Bd4+–) 6.Nf3 a5 (6...Nf6 7.Bd4+–) 7.a4 (better is 7.b6!? cb6 8.Bb8 Bd7+–) 7...f6 8.Bg3 (8.Bc3 e5+–) 8...b6 (8...e5 9.b6! Bg4 10.bc7 Qc7 11.Bb5 Kd8 12.h3+–) 9.c4 (9.d4 e6+–) 9...dc4 (9...e5 10.cd5 g5 11.h3+–) 10.Bc4 (10.Qc2 Nh6+–) 10...Nh6 (10...e5 11.Nc3+–) 11.Qb3 (better is 11.Ne5 fe5 12.Qh5 Kd7 13.Qe5 Rg8 14.Qe6 Ke8 15.Qg6 Nf7 16.Qf7 Kd7 17.Be6) 11...Nf5 (11...e5+–) 12.Bf7 Kd7 13.Qe6 1–0. mtimmermans (1650) – hsoder, net–chess.com, 2003.

4.Be5+– e6 5.e3 Nf6 (5...f6 6.Bg3+–) 6.Qf3 (6.Nf3 Nd7+–) 6...Be7 (6...Nd7 7.Bg3+–) 7.Bd3 (7.Qg3 Nh5 8.Qg4 f6+–) 7...0–0 (7...Bd6 8.Bd6 Qd6 9.Nc3+–) 8.e4 (8.Qh3!? h6+–) 8...de4 9.Be4 Bb4 (9...Ne4 10.Qe4 a6 11.Nc3+–) 10.c3 (10.Bb7 Bb7 11.Qb7 Ng4 12.Bg7 Kg7+–) 10...Bd6 (10...Ne4 11.Qe4 Be7 12.Qd4 Qd4 13.Bd4+–) 11.Qf4 (11.Bf6!? Qf6 12.Qf6 gf6+–) 11...Be5 (11...Qd7 12.a4+–) 12.Qe5 Qd6 (12...Ne4 13.Qe4 Qd7 14.a4+–) 13.Qd6 cd6 14.Bd3 (14.Bc2 Re8+–) 14...b6 (14...e5 15.Be2+–) 15.Nf3 e5 16.Ng5 (16.Be2 a6+–) 16...Re8 Black prepares e4 (16...e4 17.Be2+– (17.Ne4?! Re8+/–; 17.Be4?! Ne4 18.Ne4 Re8+/–)) 17.0–0 (better is 17.Ne4!? d5 18.Nf6 gf6+–) 17...e4 18.Bc2 (18.Be2 h6 19.Nh3 Bh3 20.gh3 Rac8+–) 18...Re5 (18...h6 19.Nh3 Bh3 20.gh3 d5+–) 19.Nh3 (better is 19.f4!? ef3 20.Nf3 Rb5 21.Bb3+–) 19...Bh3+/– 20.gh3 Rg5 21.Kh1 Rh5 (better is 21...Rb5!? 22.f3 ef3+/–) 22.d3 (22.f3 ef3 23.a4 a6 24.ba6 Rh3+–) 22...ed3 (22...Rb5 23.de4 Rb2 24.Na3+–) 23.Bd3 Rh3 24.Rg1?? (better is 24.Be2+–) 24...Rd3–+ 25.Rg2 (25.Re1!?–+) 25...Ne4 26.c4 Rd1 (26...Rf3 27.Rg1–+) 27.Rg1 Rg1 (better is 27...Nf2!? 28.Kg2 Rg1 29.Kg1 Ne4–+) 28.Kg1–/+ Rc8 (28...a6 29.ba6 Ra6 30.f3–/+) 29.Na3 (29.f3 Nc5–/+) 29...Nd2 (29...Nc3 30.Kg2–/+) 30.Rd1 Nc4 31.Nc4 Rc4 32.Rd6 Do you see the mate threat? 32...g6 (32...Kf8 33.Kg2–/+) 33.Rd7 (33.Kg2 Kg7–/+) 33...Ra4 34.Rd8 (34.Rd2 Kg7–/+) 34...Kg7 35.Kg2 (35.Rd2!?–/+) 35...Ra2–+ 36.Kg3 (36.Ra8 Ra5–+) 36...Ra5 37.h4? (37.Ra8 Kf6–+) 37...h5 (37...Rb5 38.Rd4–+) 38.Rd5 (38.Rd7–+) 38...a6 39.f4 f5 (better is 39...Rb5 40.Rd3 a5–+) 40.Rd7 Kh6 41.Kf3? (41.ba6 Ra6 42.Rd3–+) ½–½. Cornaton,Maxence – Robinson,Sean, Calvi FRA, Youth Ch, 2005.

4.Be5 e6 5.Nf3 Bc5 (5...f6 6.Bb2+–) 6.e3 (better is 6.Bg7 Nf6 7.Bh8+–) 6...Nf6 7.Be2 0–0 8.0–0 Bd7 9.d4 Bb6 10.a4 c5 (10...Ba5 11.Nbd2+–) 11.c3 (11.a5!? Bc7 12.dc5 Ne4+–) 11...c4 12.Bd6 Re8 13.Bb4 a6 14.ba6 Ra6 15.Ne5 Ne4 16.f3 Nf6 17.Nd2 Ba5 18.Ndc4! Bb4 (18...dc4 19.Nd7 Decoy) 19.cb4 dc4 20.Bc4 Ra7 21.e4 (21.Qb3 Bc6+–) 21...Qa8?? (better is 21...Ba4 22.Qd2 Qb6+/–) 22.Nd7 Nd7 23.Bb5 Rd8 24.Bd7 (24.Rc1!? Qb8+–) 24...Rd7 25.d5 e5? (better is 25...ed5 26.Qd4 b6+–) 26.Qb3 b5 27.a5 Ra6 28.Rac1 h6 29.Rc5 Qb8 30.Rfc1 Qa7 31.Kf1 Kf8 (31...Kh7 32.Qc3 Qb8 33.Rc8+–) 32.Qc3 Rg6 (32...Rd8 33.Rc8 Qe7 34.Rd8 Qd8 35.Qe5+–) 33.Qe5 (33.Rc8 Ke7 34.Qe5 Re6 35.de6 f6 36.ed7 fe5 37.d8Q Kf7 38.Qf8 Ke6 39.R8c6 Kd7 40.Rd6) 33...Kg8+– 34.Rc8 Kh7 35.Rg8 (better is 35.Qb8 Qb8 36.Rb8+–) 35...Kg8+= 36.Qe8 Kh7 37.Rc8 Rgd6 38.h4 h5 (better is 38...Rc7!?–/+) 39.g4= Qe3 40.Qh8 Kg6 41.Qh5 Kf6 42.Qf5 Ke7 43.Kg2 Qd2 44.Kg3 Qd4 45.Qg5 Qf6?? (better is 45...Rf6 46.Qc1 Qe5 47.Kg2 Rd8+=) 46.e5+– Qg5 47.ed6 (47.hg5? Rd5 48.g6 fg6–+) 47...Rd6 (47...Kd6 48.hg5 Kd5 49.Rc5 Kd6 50.Rb5+–) 48.hg5 Ra6 (48...Rd5 49.a6 Rd7 50.Rb8+–) 49.Rc5 Kd6 50.Rb5 Ra7 51.f4 g6 52.f5 (better is 52.Kf3 Re7+–) 52...Kd7 (52...Ke5 53.f6+–) 53.Kf4 Kd6 54.Ke4 Ra8 (54...Re7 55.Kd4 Re1 56.Rb6 Ke7 57.a6 gf5 58.gf5+–) 55.Rb6 Kc7 56.d6 Kd7 57.Kd5 Ra7 58.a6 Kc8 (58...Kd8 59.Rb8 Kd7 60.Rb7 Kd8 61.Ra7 Kc8 62.d7 Kd8 63.Kd6 gf5 64.Ra8) 59.b5 Kd8 (59...gf5 60.Kc6 fg4 61.Rb7 Ra8 62.a7 Ra7 63.d7 Kd8 64.Rb8 Ke7 65.Re8) 60.Kc6 Kc8 (60...Ra8 61.a7! Rc8 62.Kd5 Ke8 63.Rb8 Kf8 64.Rc8 Kg7 65.a8Q Kh7 66.Rh8 Kg7 67.Qf8) 61.Rb7 Rb7 (61...Ra8 62.a7 Ra7 63.d7 Kd8 64.Rb8 Ke7 65.d8Q) 62.ab7 1–0. phildo (1870) – rgeorge55, gameknot.com, 2013.

4.Be5+– Bf5 5.e3 e6 6.Nc3 c6 (6...f6 7.Bg3+–) 7.bc6 bc6 8.Rb1 Ne7 (8...f6 9.Bg3 e5 10.d4+–) 9.Rb7 (9.Nb5 Ng6 10.Nc7 Ke7 11.Na8 Ne5 12.Rb7 Kf6+–) 9...d4 (9...a6+–) 10.Nb5! (worse is 10.ed4 f6 11.Bg3 Qd4+–) 10...cb5 (10...Nd5 11.Nd4 f6+–) 11.Bb5 Qd7 12.Rd7 Be4 13.Rd5 Nc6 14.Bc6 Ke7 15.Rd7 Ke8 16.Be4 (16.Qh5 Be7 17.Re7 Ke7 18.Qg5 Kf8 19.Qg7 Ke7 20.Qg5 f6 21.Qf6) 16...Kd7+– 17.Ba8 Bb4 18.Qf3 f6 19.Qb7 1–0. marekt – chaste, gameknot.com, 2001.

4.Be5 f6 5.Bb2 e5 6.a4 Bc5 7.e3 Ne7 8.Nf3 Nf5 9.Be2 e4 10.Ng1 Nd6 11.Bg4 f5 (11...Nc4 12.Bc3 Bg4 13.Qg4+–) 12.Bh3 (better is 12.Bh5 Kf8 13.Bc3+–) 12...Nc4?? (12...0–0+–) 13.Bg7 Rg8 14.Bb2! h5?? (14...Nb2 15.Qh5 Double attack) 15.Bc3 (better is 15.Qh5 Ke7 16.Qh7 Kf8+–) 15...c6 (15...Qg5 16.Ne2 c6 17.d3+–) 16.bc6 (16.Qh5 Ke7 17.Qh7 Kf8 18.bc6 Qe7 19.Qh6 Ke8 20.Qh5 Qf7 21.Qf7 Kf7+–) 16...bc6 (16...Qg5 17.cb7 Bb7 18.Ne2+–) 17.Ne2 (better is 17.Qh5 Ke7 18.Qh7 Kd6+–) 17...Nb2 (17...Rg5+–) 18.Bb2 1–0. Neumann,Frank – Bortnicker,Cory, OP–2012–0–01987, 2012.

4.Be5+– f6 5.Bb2 e5 6.e3 e4 (6...Be6 7.d4+–) 7.Nc3 (7.c4 c6+–) 7...Nh6 (7...f5 8.Nh3 Nf6 9.Be2+–) 8.Qh5 g6 (8...Nf7 9.Qd5 Qd5 10.Nd5+–) 9.Qd5 Qe7 (9...Be7 10.Bc4+–) 10.Ne4 (better is 10.Qe4 Ng8 11.Bc4+–) 10...Qb4 (10...Bg7+–) 11.Nf6 Ke7 12.Qe5 Kf7 13.Bc4! Qc4 (13...Qc4 14.Qe8 Mate attack) 14.Qe8 Kg7 15.Nd7 Kg8 (15...Qc3 16.Bc3 Kg8 17.Qf8) 16.Qf8 1–0. wesolyPolak (1830) – NN, GameColony.com, 2002.

4.Be5 f6 5.Bb2 e5 6.e3 Be6 7.Nf3 (7.d4 e4+–) 7...Bd6 8.Be2 Ne7 9.0–0 0–0 10.d4 e4 11.Nfd2 f5 (11...c6 12.Ba3+–) 12.c4 c6 13.c5 Bc7 14.Nc3 (14.Qb3 Qd7+–) 14...Ng6 (14...f4 15.Qb3 Qd7 16.a4+–) 15.a4 (15.f4 Qf6+–) 15...Qh4 (15...Qg5 16.bc6 Nh4 17.g3 bc6 18.Ra3+–) 16.h3 f4 17.Bg4 Rae8 18.Be6 Re6 19.Ne2?? f3+= 20.Nf4?? fg2 21.Ne6? Qh3–+ (22.f4 gf1Q 23.Qf1 Qe6 24.bc6 bc6–+) 0–1. gtate (1960) – mbarker (2145), net–chess.com, 2006.

4.Be5+– f6 5.Bg3 +–.

4.f4?? Nc4+= 5.Bd4 Bf5 6.e3 e6 7.a4 c5 8.bc6 bc6 9.Bc4 dc4 10.Nf3 Nf6 11.0–0 Bd6 12.h3 c5 13.Bf6 Qf6 14.c3 (better is 14.Na3+=) 14...0–0 15.Na3 Bd3 16.Rf2 Qg6 17.Nb5 Be7 18.Ne5 Qf5 19.Nd3 Qd3 20.Kh2 Rab8 21.Ra2 a6 22.Na3 Bh4 23.g3 Bf6 24.Qe2 Qe2 25.Re2 e5 26.Nc4 ef4 27.gf4 Rb1 28.Nd6 Rd8 29.Ne4 Bh4? (better is 29...Be7!?+/–) 30.Nc5+– Rd6 31.Rg2 Rd1 32.Rb2 g6 33.d4 Rd5 (33...Rc6 34.a5+–) 34.Na6 g5 (34...Ra5 35.Nc5+–) 35.fg5 Bg5 (35...Rf5+–) 36.h4 f6 37.hg5 fg5 38.e4 Rd6 (38...Ra5 39.Nc5 h6 40.Rb8 Kg7 41.Rb7 Kg6 42.Rb6 Kg7 43.Rgb2+–) 39.Rg5 Kf7 40.Rf2 Ke7 (40...Rf6 41.Rf6 Kf6 42.Rf5 Kg6+–) 41.Rg7 Ke6 (41...Ke8 42.Nc7 Kd8 43.Rf8) 42.Nc5 1–0. Biskup,Izabela (1800) – Grotha,Magdalena, DMO Poland, 2007.

3.c3 e5

4.Qa4 Bd6 5.b5 Nce7 6.c4 +=.

4.Qa4 Bd7 5.b5 Nce7 6.g3 (better is 6.c4!?+=) 6...a6–/+ 7.e3 (7.Nf3 Bb5 8.Qc2 Ng6–/+) 7...Bb5 (7...ab5!? 8.Qb3 c6–+) 8.Bb5–/+ ab5 9.Qb5 c6 10.Qb3 (10.Qb7?? Rb8 11.Qa7 Rb2–+) 10...Ng6 (10...Nf6 11.c4 dc4 12.Qc4–/+) 11.Nf3? (11.Qb7!? N8e7 12.Ba3=) 11...b5 (11...e4 12.Nd4–/+) 12.a4 (12.d3 Nf6–/+) 12...Rb8 (12...ba4 13.Ra4 Rb8 14.Qa2–/+) 13.a5 (13.ab5 Rb5 14.Qc2 e4+=) 13...Ra8–/+ 14.a6 Qb6 15.Qa2 Bd6 (15...e4 16.Nd4 Ne5 17.0–0–/+) 16.0–0 N8e7 17.d4 (17.d3 0–0 18.h4 h5–/+) 17...e4–/+ 18.Nfd2 (18.Ng5 Nf5–/+) 18...0–0 19.f4 (19.f3!? ef3 20.e4–/+) 19...Nf5–+ 20.Re1 Ra7 21.Rc1 (better is 21.Qb3 Ra6 22.Ra6 Qa6 23.Ba3 Ba3 24.Na3–+) 21...Ne3 22.Nf1 (22.Qb3 Ra6 23.Ra6 Qa6–+) 22...Nf1 23.Rf1 Rfa8 24.Ba3 (24.Qb3 Ra6 25.Ra6 Qa6–+) 24...Ba3 (better is 24...Ra6 25.Qb2 b4 26.cb4 Bb4 27.Rd1–+) 25.Na3 Ra6 26.Qb2 c5 (26...Qa7 27.Nc2–+) 27.f5 (27.Nc2 Ne7–+) 27...Ne7 28.Nc2 Ra1 29.Ra1 Ra1 30.Qa1 h5 31.Ne3 (31.Qa8 Kh7 32.Qe8 Qf6 33.Qb5 Nf5–+) 31...cd4 32.cd4 Qb7 (32...Kh7 33.Qb2–+) 33.Qa5 Nc6 (better is 33...Qd7 34.Kf2–+) 34.Qc3 (34.Qa1–+) 34...b4 35.Qb3 (35.Qb2 Qa7 36.Nd5 Nd4–+ (36...Qd4?! 37.Qd4 Nd4 38.Nb4–+)) 35...Nd4 36.Qb2 (36.Qd5 Qd5 37.Nd5 b3–+) 36...b3 37.Nd1 Nf5 38.Qe5 (38.Qf2 Qc8 39.Qe1 Nd4–+) 38...Ne7 (better is 38...Ne3! 39.Qe8 Kh7 40.Qe5 Nd1 41.Qh5 Kg8 42.Qd1–+) 39.Nb2 (39.Kf2 Qb4 40.Qc3 Qc3 41.Nc3 b2–+) 39...Qb4 40.Qf4 (40.Kg2 Qd2 41.Kh3 Ng6 42.Qh5 Qb2 43.Qd5 Qc2–+) 40...Qe1 41.Kg2 (41.Qf1 Qc3 42.Nd1 Qd2–+) 41...Qe2 (better is 41...e3 42.h4 Qc3 43.Na4 Qc2 44.Kh3–+) 42.Kh3 (42.Qf2 Qc2 43.Kg1–+) 42...Qb2 43.Qb8 Kh7 44.Qd6 Qf6 (44...Ng6 45.Qb8 Qe2 46.Qf4 Nf4 47.gf4 Qg4) 45.Qa3 (45.Qf4 Qf4 46.gf4 b2 47.Kg3 b1Q 48.h4 Qg1 49.Kh3 Ng6 50.f5 Nf4) 45...b2 (45...Qf1 46.Kh4 Qf5 47.Qe7 Qg4) 46.Qa2 (46.Qa6 Qa6 47.g4 Qe2 48.gh5 Nf5 49.h6 Qf3) 46...Qf1 47.Kh4 b1Q (47...Qf5 48.Qb2 Ng6) 48.Qb1 (48.Qf2 Qf2 49.h3 Qd1 50.Kg5 Qg3) 48...Qb1 (48...Qf5 49.Qe4 Ng6) 49.h3 (49.Kh5 Qf1 50.Kh4 Qf5 51.g4 g5 52.Kg3 Qf3) 49...Kh6 50.g4 0–1. willi_weizenkeim – Axle_chaos, playchess.de, 2002.

4.b5 Nce7 5.c4 d4 6.e3 c5 7.Bd3 Bf5 8.e4 Bd7 9.Nf3 Ng6 10.Na3 b6 (10...Nf4 11.Bf1+=) 11.0–0 Nf6 12.Qb3 Be7 13.Rfe1 0–0 14.g3 Ng4 15.Bf1 Qc8 16.Bg2 Nh6 17.Nc2 Bh3 18.Bc1 Bg2 19.Kg2 Qg4 20.d3 Bh4?? (better is 20...f5 21.h3 Qh5+=) 21.h3+– (21.Nh4 Nh4 22.Kf1 Nf3–+) 21...Qh5 22.Nh4 Nh4 23.gh4 Qh4 24.Re2 (24.Na3 f5 25.Qc2 Rf6 26.ef5 Nf5 27.Re5 Rg6 28.Kh2 Nd6–/+) 24...f5 25.Bh6 gh6 (25...Qh6 26.Rg1+/–) 26.Rg1+– Kh8 27.Rh1 (27.Kf1 Qh3 28.Ke1 fe4 29.Re4 Rf2+/–) 27...Rg8 (27...fe4 28.de4 Rf4 29.Ne1 Rg8 30.Kf1 Re4 31.Qf3 Re2 32.Ke2+/– (worse is 32.Qe2 e4+=)) 28.Kf1 Rg5 (28...Raf8 29.ef5 Qg5 30.Ne1 Rf5 31.Qc2+/–) 29.Ne1 (better is 29.ef5 Qf4 30.h4+–) 29...Rag8? (better is 29...Qf4+–) 30.Nf3 fe4 (30...Qf4 31.Ng5 hg5 32.ef5 Qf3+–) 31.Nh4 ed3 32.Qd3 Rh5 33.Qf3 Rh4 (33...Rc8 34.Qh5 Re8 35.Qe8 Kg7 36.Qe7 Kg8 37.Rg1 Kh8 38.Qe5) 34.Qf6 1–0. Janek – cewue, internet, 2016.

4.d3 Bd6 5.e3 –/+.

4.d3 Be7 5.Nf3 (5.b5 Nb8=+) 5...Nf6 (5...a6 6.e3=+) 6.Nbd2 (6.b5 e4 7.de4 de4 8.bc6 Qd1 9.Kd1 ef3 10.ef3 bc6=) 6...Be6 (6...a6 7.e4=+) 7.e4 (7.b5 Nb8=) 7...de4 (7...a6 8.Be2=+) 8.de4= 0–0 (8...a6 9.b5 ab5 10.Bb5=+) 9.Be2 (9.b5 Nb8 10.Ne5 Nbd7+=) 9...Re8 (9...Qd6 10.Ng5=+) 10.0–0 (10.b5 Na5+=) 10...a6= 11.Qc2 Bf8 (11...Bd6 12.Rfd1=) 12.Nc4 (12.a4 Bd6=) 12...Bg4 (12...Nd7 13.Rad1 Qf6 14.Bc1=) 13.Rad1 Qc8 14.Ne3 h6 (14...Bh5 15.Nd5+=) 15.Ng4+/– Ng4 16.h3 (16.Bc1 Qe6+=) 16...Nf6+= 17.a3 (17.Bc1 Qe6+=) 17...Rd8 (17...Qe6 18.Bc1+=) 18.Rd8+/– Qd8 19.Rd1 Qe7 20.c4 Nd7 21.b5 ab5 22.cb5+– Nd8 23.a4 Ne6 24.Ne5 Ne5 25.Be5 Ra4?? 26.Qa4+– (26...Nc5 27.Qd4+–) 1–0. alaamattar (2205) – joecool (2105), net–chess.com, 2005.

4.e3 Nf6 5.Nf3 e4 6.b5 Na5 7.Nd4 Bc5 8.Qa4 b6 9.Ba3 Bd4 10.cd4 Bd7 11.Qc2 h6 12.Nc3 Nc4 (better is 12...Rc8!?+=) 13.Bc4+/– dc4 14.Ne4 Bf5 (14...Rc8!?+/–) 15.Nf6+– Qf6 16.Qc4 0–0–0 17.0–0 Qg6 18.Rac1 Rd7 19.Rc3 Bh3?? (19...Be4 20.f3 Bd5+–) 20.Qc6 Bf5 (20...Qg2 21.Qg2 Bg2 22.Kg2 Kb7+–) 21.Qa8 1–0. Fritz11 – jumbo, casual, 2013.

3.e3 e5

4.a3 a6 5.c4 (--> 2…a6 3.e3 Nc6 4.a3 e5 5.c4).

4.a3 Bd6 5.Nf3 a6 6.b5 ab5 7.Bb5 =+.

4.b5!? Na5 5.Be5 +/–.

4.b5 Nb4 5.Be5 f6 6.Bc3 Bd7? 7.a4 c6 8.Bb4 Bb4+= 9.c3 Ba5 10.Nf3 Ne7 11.Bd3 0–0 12.Qc2 g6 13.0–0 Bg4 14.Nd4 f5? 15.Ne6 Qd7 16.Nf8 Rf8 17.Qc1 Bc7 18.c4 Qd6 19.cd5?? Qh2# 0–1. badboy1221 – zzz, Live Game Caissa's Web, 2005.

4.b5!? Nb8 5.Be5 +=.

4.c4?? Bb4!? 5.Nf3 d4 –/+.

4.c4?? d4 5.b5= Nb4? (5...Nce7 6.ed4 ed4 7.Qe2=) 6.ed4?? (better is 6.a3!? de3 7.ab4 ef2 8.Kf2 Bb4 9.Be5+–) 6...ed4 (better is 6...Bf5 7.d3 e4 8.de4 Be4=) 7.Nf3?? (better is 7.d3 Bf5 8.Be2+=) 7...d3 (better is 7...Qe7 8.Be2 d3–+) 8.Nc3?? (better is 8.Qb3 Nc2 9.Kd1–+) 8...Nc2 9.Qc2 dc2 10.Nd5 Bb4! 11.Bd3 (11.Nb4 Qe7 Double attack (11...Qe7 Decoy)) 11...f6 12.0–0 Ne7 (12...Bd6 13.Rfe1 Ne7 14.Bc2–+) 13.Rfe1?? (13.Nb4 Qd6 14.c5 Qc5 15.Nc2 Qd6–+) 13...0–0 (13...Bd6 14.Bc2 0–0 15.Ne7 Be7 16.Be4–+) 14.Ne7?? (14.Nb4 c5 15.bc6 Nc6 16.Nd5–+) 14...Be7 15.Nd4 (15.Bc2 a6–+) 15...Bb4 (better is 15...Bc5 16.Re4 f5–+) 16.Ne6 (16.Bc2 Re8 17.Bc3 Bc3 18.dc3–+) 16...Be6 17.Re6 Bd2 (better is 17...Qd3 18.Ree1 Bd2 19.Rf1–+) 18.Bf5 (18.Bc2 Re8 19.Re4 Ba5 20.Re8 Qe8–+) 18...b6 (18...c1Q 19.Bc1 Bc3 20.Bb2 Bb2 21.Rf1–+) 19.Ba3 (19.Bc2 Re8 20.Re4 Qd6–+) 19...Rf7 (better is 19...Qd4 20.Rf1 Rfe8 21.g3–+) 20.Bc2 c5 (better is 20...Bc3 21.Rf1 f5 22.c5–+) 21.Bf5 (21.bc6 Qc8 22.Re2 Bc3–+) 21...Bc3 (better is 21...g6 22.Bc2 Re7 23.Re7 Qe7 24.Rf1–+) 22.Rb1 (22.Rf1 Re7 23.Bc1 a6 24.ba6 Kf7 25.Re7 Ke7–+) 22...Qd4 (22...Qd2 23.Rf1 Qa2 24.Bc1–+) 23.h3 (23.Re4 Qd2 24.Rf1 Qa2–+) 23...Raf8 (23...Qc4 24.Rc1 Qd5 25.Rc3 Qf5 26.Re1–+) 24.Bc1 (24.Re3 g6 25.Bc2 f5–+) 24...Bd2 (better is 24...Qd1 25.Kh2 Be5 26.Re5–+) 25.Bd2 (25.Re4 Qd3 26.Rf4 Qe2 27.Bd2 Qd2–+) 25...Qd2 26.Rbe1 Qa2 27.Re8 (27.R6e4 Rd8–+) 27...Qc4 28.Rf8 (28.R8e3–+) 28...Rf8 (better is 28...Kf8 29.Bh7 Qb5–+) 29.Be6 Qe6! 30.Re6 (30.Re6 Rd8 Combination) 30...Kf7 31.Rc6 Re8 32.Rc7 (32.Kf1 Re4–+) 32...Re7 33.Rc6 (33.Rc8 Ke6 34.Rd8 Rd7 35.Re8 Kd5–+) 33...Kg6 (better is 33...Ke8!? 34.Rc8 Kd7 35.Ra8–+) 34.g4 (34.Kf1 Re4–+) 34...h5 (better is 34...Re1 35.Kg2–+) 35.f4 (35.Kg2–+) 35...hg4 36.hg4 Kf7 (36...Re4 37.f5 Kg5 38.Rc7 Rg4 39.Kf2–+) 37.g5? (37.Kf2 Ke8–+) 37...fg5 (better is 37...Kg6!? 38.gf6 gf6 39.Kf2–+) 38.fg5 g6 (38...Re5 39.Rc7 Kg6 40.Ra7 Rg5 41.Kf2–+) 39.Kg2 (39.Rf6 Kg7 40.Rc6 Re5 41.Rc7 Kf8 42.Ra7 Rg5 43.Kf2 c4–+) 39...Re5 40.Rc7 Ke6 41.Ra7 Rg5 42.Kf3 Rf5 (better is 42...c4!? 43.Rc7 Rc5 44.Rg7–+) 43.Ke4 g5 (better is 43...Re5 44.Kd3 Rd5 45.Ke3 Rd6–+) 44.Ra6 Rf4 45.Ke3 Kd7 (45...Rb4 46.Rb6 Ke5 47.Rb8–/+) 46.Rb6 Kc7 (better is 46...Rb4!?–/+) 47.Rc6= Kb7 48.Rc5 Rg4 49.Kf3 Rg1 50.Rc6 g4 51.Kf2 Rb1 52.Rg6 Rb2 53.Kg3 Rb4 54.Rg4 Rb5 55.Rg7 Kc6 56.Rg6 Kd7 57.Rg7 Ke6 58.Rg6 Kf7 59.Rd6 Rg5 60.Kf4 Rg6 61.Rg6 Kg6 ½–½. Nautiluschess – honma, ICS blitz, 2001.

2...Bd7

3.a4 Bc6 4.b5 Bd7 5.Nf3 a6 (5...Nf6 6.e3=) 6.e3 ab5 (6...Nf6 7.Be2=) 7.ab5 Ra1 8.Ba1 e5 (better is 8...Nf6!?+=) 9.Ne5 (9.Be5 Nf6 10.Nc3+/–) 9...Qf6 (9...Be6!?+/–) 10.Nd7+– Qa1 11.Nb8 Qa7 12.Na6! ba6 13.ba6 Bd6 (13...c6+–) 14.Qg4 g6 (14...Ne7 15.Qg7 Ng6 16.Bb5 Ke7+–) 15.Qc8 Ke7 16.Nc3 (16.Nc3 c6 17.Qc6+–) 1–0. Wall,Bill – TKO, internet, 2003.

3.a4 e5 4.Be5 Nc6 5.d4 +=.

3.e3 a6 (--> 2…a6 3.e3 Bd7).

3.e3 b5 4.a4 Na6? (better is 4...ba4 5.Nf3 a6+=) 5.ab5+– Nb4 6.c3 e5 7.cb4 Bb4 (7...Bd6 8.Nf3 f6 9.Nc3+–) 8.Be5 Qg5 (8...Nf6 9.Nc3+–) 9.Nf3 Qg6 10.Bc7 Nf6 11.b6 Bc6 (11...0–0 12.b7 Rae8 13.Ra7 Qe4+–) 12.Ne5 Qe4 13.Nc6 d4 14.b7 Qc6 15.Bb5! 0–0 (15...Qb5 16.ba8Q) 16.Bc6 Rac8 17.bc8R Rc8 18.Ra7 (18...Bc5 19.Rb7+–) 1–0. miehnekort – meeheal, Yahoo, 2005.

3.e3 c6 4.Nf3 Bg4 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.Nf3 Bg4).

3.e3 Bc6 4.Nf3 Nd7?? (4...Nf6 5.Be2=) 5.a3?? (better is 5.b5+–) 5...Ndf6 6.c4 e6 7.cd5 ed5 8.Nc3 Qe7 9.d4 Kd8 (9...Bd7 10.Bd3+=) 10.Bb5 (10.Bd3 Bd7+/–) 10...a6? (better is 10...Bb5!? 11.Nb5 a5+=) 11.Bc6+/– bc6 12.Qc2 Qe4?? (better is 12...a5+/–) 13.Ne4+– Ne4 (13...de4 14.Ne5 Nh6 15.g4+–) 14.Qc6 Ne7 15.Qa8 Kd7 16.Ne5 Ke6 17.Qa6 Kf5 18.g4 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

3.e3 e5 4.Be5 Bb4?? (better is 4...Nc6 5.Bf4 Bb4=) 5.Bg7+– Bd6 6.Bh8 Be5 (6...Nf6+–) 7.Be5 Qe7 (7...Nc6 8.Bf4+–) 8.Nf3 (8.Bc7 Nf6+–) 8...d4 (8...Bg4 9.Bg7+–) 9.Bd4 Ba4 (9...Nc6 10.Bb2+–) 10.Nc3 (10.Nc3 Bc6 11.Bc4+–) 1–0. Fournier,Frederic (1670) – asaf_zu, rated lightning game, 2002.

3.e3 f6 4.Nf3 (better is 4.Qh5!? g6 5.Qd5+/–) 4...Nh6 5.d4 e6 6.a3 Be7 7.Bd3 0–0 8.Nbd2 a6 9.0–0 b5 10.c3 Nc6 11.e4 de4 12.Ne4 f5 13.Nc5 Bc5 14.dc5 Ng4 (14...e5 15.c4 e4 16.cb5 ef3 (16...ed3? 17.bc6 Bc6 18.Ne5+–) 17.bc6 fg2 18.Qb3 Rf7+/–) 15.Qc2 (15.c4 Ne7+/–) 15...Nge5 (15...e5!? 16.Qb3 Kh8=) 16.Ne5 Ne5 17.c4 Nd3 18.Qd3 Bc6 19.Qd8 (19.Qe3 Qe7+/–) 19...Rad8 20.cb5 Bb5 21.Rfd1 Rd3 22.Rd3 Bd3 23.Rd1 Be4 24.f3 Bd5 25.Kf2 c6 26.Ke3 Rb8 27.Be5 Rb7 28.g3 Kf7 29.f4 a5 30.Rb1 ab4 31.ab4 Bc4 32.Rb2 Rd7 33.Bd6 Bb5 34.Ra2 Kg6 35.h4 h5 36.Ra8 Kh7 37.Kd4 g6 (37...Kg6!?+=) 38.Ke5+/– Bc4 39.Ra1 (39.Rc8 Bb5+–) 39...Bd5 (39...Rb7 40.Kd4 Bd5 41.Kc3+/–) 40.Rb1 (better is 40.Ra6!?+–) 40...Rb7+= 41.Kf6 Bc4 42.Rb2 (42.Ra1!? e5 43.b5 (worse is 43.fe5 Rf7 44.Kg5 f4–/+) 43...Rf7 44.Kg5 ef4 45.gf4 (45.bc6?! fg3 46.c7 Be6+/–) 45...cb5 46.c6+–) 42...Bd5+= 43.Rb1 Bc4 44.Rb2 (44.Ra1 Bd3 45.Be5+–) 44...Bd5= 45.Rb1 ½–½. Fournier,Frederic (1640) – lfjm29, Active, 2007.

3.e3 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 Bd7).

3.Nf3 Nf6 =.

3.g3 e5 4.Be5= Nc6 5.Bc3 (better is 5.Nf3=) 5...Bb4?? (better is 5...Nb4 6.a3 Nc6+=) 6.Bg7+– Be7 (6...Qe7 7.Bh8 Nf6 8.Bh3+–) 7.Bh8 Bf6 (7...Bf5 8.Bg2+–) 8.Bf6 Qf6 (8...Nf6 9.Nf3+–) 9.Nc3 Be6 (9...Nge7 10.Bg2 d4 11.Ne4+–) 10.Nb5 (10.Bg2!? 0–0–0+–) 10...0–0–0 11.c3 a6 12.Na3 (12.Nd4 Nd4 13.cd4 Qd4+–) 12...b5 (12...d4 13.c4+–) 13.Bg2 Nh6 (13...Nge7 14.Nc2 d4 15.cd4 Nd4 16.Nd4 Rd4 17.Nf3+–) 14.Bf3 (14.Nc2 Ne5+–) 14...Bg4 (14...Ng4 15.d4 Na5 16.Nh3+–) 15.Bg4 (15.Nc2 Ne5+–) 15...Ng4 16.f3 Nge5 (16...Ne3 17.Qb3 Nf5 18.Nh3+–) 17.d4 Nc4 (17...Qe7 18.Nc2 Nc4 19.Nh3+–) 18.Nc4 dc4 19.Nh3 b4 (19...Ne7 20.Nf4+–) 20.0–0 (better is 20.Qa4!? a5 21.Rd1 bc3 22.Qc4 Nd4 23.Qc3 Qb6+–) 20...bc3 21.e3 Nb4 (21...Qe6 22.Qa4 Rd6 23.Nf2 Qe3 24.Qa6 Kd7 25.Rae1 Qd4 26.Qa8+–) 22.Qa4 Qb6 (22...Nd5 23.Rfe1 Qb6 24.Rab1+–) 23.Rab1 a5 24.Rfc1 Rd4 (24...Qe6 25.Rc3 Nd5 26.Ra3+–) 25.Rc3 (better is 25.ed4 Qd4 26.Nf2 Qe3 27.Qa5 Nd3+–) 25...Rd2 26.a3 (26.Qe8 Rd8 27.Qf7 Qg6 28.Qg6 hg6 29.Rc4 Rd3+–) 26...Qh6 (26...Qf6 27.Rc4 Qf3 28.Qe8 Rd8 29.Rf4 Re8 30.Rf3+–) 27.ab4 (better is 27.Qe8 Rd8 28.Qf7 Nd5 29.Qf5 Rd7 30.Rc4 Qf6+–) 27...ab4 (27...Qh3 28.Qe8 Rd8 29.Qf7 Rd2 30.Qe8 Rd8+–) 28.Qe8 Rd8 29.Qa4 bc3?? (29...Rd2 30.Ra1 bc3 31.Qe8 Rd8 32.Ra8 Kb7 33.Rd8 c2 34.Qe4 Qc6 35.Qc2 Qf6 36.Qe4 Kb6 37.Rb8 Kc5+–) 30.Qa8+– Kd7 31.Rd1 Ke6 32.Rd8 Qe3 33.Nf2 Qe1 34.Kg2 Kf6 35.Qa6 (35.Ng4 Ke7 36.Re8 Kd6 37.Re1 c2 38.Nf6 Kc5 39.Re5 Kb4 40.Qa5 Kb3 41.Rb5) 35...Kg7 36.Qc4 Qa1 37.Qg4 Kf6 (37...Kh6 38.Qf4 Kh5 39.g4 Kg6 40.Rg8) 38.Ne4 Ke5 39.Qf4 Ke6 40.Qf6 1–0. BorisOwl – Iplaychess, gamecolony.com, 2000.

3.g3 Nf6 4.Nf3 +=.

3.a4 Nf6

4.b5 =+.

4.Nf3 =+.

3.e3 Nc6

4.b5 Na5 (--> 2.Bb2 Nc6 3.b5 Na5 4.e3 Bd7).

4.b5 Nb8 (--> 2.Bb2 Nc6 3.b5 Nb8 4.e3 Bd7).

3.e3 e6

(--> 1.b4 d5 2.Bb2 e6 3.e3 Bd7).

4.a3 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 Bd7).

2...Nd7

3.a3 a5 A) 4.Nf3 ab4 (4...Ngf6 5.b5 e6 6.e3 Bd6+=; 4...e6 5.ba5 Ngf6 6.e3 Bd6+=; 4...f6 5.Nc3 e5 6.Nd5 c6=) 5.ab4 Ra1 6.Ba1 Ngf6+=; B) 4.b5 e5 5.Nf3 e4 6.Nd4 Ne5 +=.

3.a3 c6 (--> 1.b4 c6 2.Bb2 d5 3.a3 Nd7).

3.a3 e6 A) 4.e3 Ngf6 (4...a5 5.Nf3 ab4 6.ab4 Ra1+=; 4...e5 5.Nf3 e4 6.Nd4 a5=) 5.Nf3 a5 6.ba5 Ra5+=; B) 4.Nc3 a5 (4...Ngf6 5.Nf3 e5 6.e3 a5+=; 4...d4 5.Ne4 f5 6.Ng3 f4=; 4...a6 5.e4 de4 6.Ne4 Ngf6=) 5.b5 Ngf6 6.e3 Bd6+=; C) 4.Nf3 Ngf6 (4...a5 5.ba5 Ngf6 6.e3 Bd6+=) 5.e3 a5 6.ba5 Bd6+=.

3.a3 Ngf6 4.Nf3 e6 (4...a5 5.b5 e6 6.e3 Bd6+=; 4...a6 5.e3 e6 6.c4 dc4=) 5.e3 Bd6 6.Nc3 0–0 +=.

3.a4 Bc6 4.b5 Bd7 5.Nf3 a6 6.e3 ab5 7.ab5+= Ra1 8.Ba1 e5 9.Ne5 Qf6?? 10.Nd7+– Qa1 11.Nb8 Qa7 12.Na6 ba6 13.ba6 Bd6 14.Qg4 g6 15.Qc8 Ke7 16.Nc3 (16...Be5 17.d4+–) 1–0. Wall,Bill – TKO, Internet, 2003.

3.b5 b6 4.d4 Ngf6 5.e3 e6 6.c4 Bb7 7.Nf3 Bd6 8.Nbd2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0 7.d4 b6 8.Nbd2 Bb7).

3.b5 e5 4.Nf3 Bd6 5.e3 Ngf6 6.Be2 0–0 7.0–0 c5 8.c4 d4 9.ed4 cd4 10.d3 b6 11.a4 Bb7 12.Ba3 Qe7 13.Bd6 Qd6 14.Nbd2 Rfe8 15.Nh4 g6 16.Bf3 Bf3 17.Qf3 Nc5 18.Rfe1 Nh5 19.Ne4 Ne4 20.Qe4 f5 21.Qe2 Nf6 22.g3 e4 23.de4 fe4 24.Ng2 Rad8 25.Nf4 d3 26.Qd2 Qd4 27.Rac1 Ng4 28.Nd5 Rf8 29.Rf1 Ne5 30.Kg2 Nc4 31.Qg5?? (31.Ne7 Kg7 32.Qa2–+) 31...Rd5 32.Qe7 e3 (32...d2!? 33.Qe6 Kg7 34.Rcd1–+) 33.Qe6?? (better is 33.Qf8 Kf8 34.fe3 Rf5 A) 35.ed4? Ne3 36.Kg1 d2–+ (36...Nf1 37.Rf1 d2 38.Rd1+=); B) 35.Rf5 gf5 36.ed4–/+) 33...Kh8 34.f3 (34.Rc4 Qc4 35.Qe3 Qa4 36.Qe7–+) 34...e2 35.Rfe1 d2 36.Qe2 dc1Q (better is 36...Qb2 37.Rcd1 de1N 38.Re1–+) 37.Rc1 Qd2 38.Qd2 Rd2 39.Kh3 Ne3 40.Rc7 (40.f4 Rd5 41.g4 Rf4–+) 40...Rf3 (better is 40...Rd5 41.Rc4 Nc4 42.f4 Ne3 43.g4 Rf4 44.Kg3 g5 45.h4 Nf1 46.Kg2 Rd2 47.Kg1 Ne3 48.hg5 Rf1) 41.Ra7 g5 (41...Rd5 42.Ra8 Kg7 43.Ra7 Kh6 44.Rh7 Kh7 45.a5 Rh5) 42.Ra8 Kg7 43.Ra7 Kg6 44.Ra8 (44.Rg7 Kg7 45.a5 Rff2 46.a6 Rh2) 44...Rff2 (44...g4 45.Kh4 Rh2) 45.Rg8 Kh6 46.g4 1–0. avinoam – holpak, internet, 2013.

3.d3 e5 4.a3 (--> 1.b4 e5 2.a3 d5 3.Bb2 Nd7 4.d3).

3.d3 Ngf6 4.f4 (4.Nf3!?+=) 4...e6–/+ 5.Bc3 (5.Qd2!?–/+) 5...c5–+ 6.b5 d4 7.Bb2 (7.Bd2 Nd5–+) 7...Nd5 8.Bc1 (better is 8.Nf3 Bd6 9.g3–+) 8...Bd6 9.g3 Qa5 (9...a6!? 10.ba6 Ra6 11.Bg2–+) 10.Bd2 Qb5 11.c4 (11.Na3 Qa6 12.Nc4 Be7–+) 11...Qb2 12.Qb3? (12.Na3 Qa3 13.cd5 ed5 14.Bg2–+) 12...Qa1 13.cd5 ed5 14.e3 (14.Nf3 c4! 15.Qc2 cd3 16.ed3–+) 14...de3 (better is 14...0–0–+) 15.Bc3–/+ c4 16.dc4 (16.Ba1?? cb3 17.ab3 0–0–+) 16...Nc5 17.Ba1 Nb3 18.Bg7?? (better is 18.ab3 Bf5 19.Nc3+=) 18...Rg8–+ 19.Bf6 Nc1 20.Kd1 (20.cd5 Bd7 21.Nc3–+) 20...Na2 21.Ne2 dc4 22.h4 (22.Nbc3 Rg6 23.Bd4 Nc3 24.Nc3–+) 22...Bf5 23.Nbc3 Nc3 24.Nc3 (24.Bc3 Rd8 25.Ke1 Bc5–+) 24...Rg3 25.Bc4 (25.h5 Be7 26.Be7 Ke7 27.Nd5 Kd6–+) 25...Rc8 26.Bd5 (26.Bb5 Kf8 27.Ke2 Bb4–+) 26...Bb4 27.Ne4 Bg4 0–1. Taulien,Christian (2110) – Hausmann,Heiko (2085), remoteschach.de, 2004.

3.d4 c6 4.Nf3 Ngf6 5.e3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.d4).

3.d4 e5 4.de5 Bb4 5.Nd2 Qe7 6.Ngf3 c5 7.a3 Ba5 8.e3 Bc7 Will e5 fall? 9.Bb5 a6 10.Bd7 Bd7 (worse is 10...Kd7 11.c4 dc4 12.Nc4 Ke8 13.Nd6 Kf8 14.Rc1+/–; 10...Qd7?! 11.Rc1=) 11.e6 fe6 12.Ne5 Nf6 13.Nd7 Qd7 14.Bf6 gf6 15.Qh5 Qf7 16.Qe2 Rg8 17.g3 Qg6 18.Nb3 c4 19.Nc5 Ba5 20.Kf1 b5 21.Ne6? (better is 21.e4 Bb6 22.Ne6 Qe4 23.Rg1 Qe2 24.Ke2–+) 21...Kf7?? (better is 21...Qe4 22.Qh5 Ke7–+) 22.Nf4= Qf5 23.Qh5 Qh5 24.Nh5 Bc3 25.Rb1 d4 26.ed4 Bd4 27.Nf4 Rge8 28.Kg2 Bc5 29.Nd5 Re2 (29...Ba3?! 30.Nc7=) 30.Rhf1 Rc2 31.Nb4 Rd2 32.Rbd1 Bb4 33.ab4 Rad8 34.Ra1 R8d6 35.Ra5 Rb2 36.Rfa1 Rdd2 37.Rf1 Rb4 38.Ra6 Rbb2 39.Rc6 Rdc2 40.g4 h6 41.Kg3 Rc3 42.f3 Rcc2 43.h4 Rg2 44.Kf4 Rgf2 45.Ra1 Ra2 46.Rb1 Rfb2 (46...Ra3 47.Rb5 Raf3 48.Ke4 Rf4 49.Ke3 R2f3 50.Ke2–/+) 47.Rd1 (47.Rb2!? Rb2 48.Kf5=) 47...Rd2–/+ 48.Rb1 Rd4 49.Kg3 Rd5 50.h5 Rad2 51.Ra1 Rd6 52.Rc7 Rd7 53.Rc5 R2d5 54.Rc6 Ke7 55.Re1 Re5 56.Ra1 (56.Re5!? fe5 57.Rh6+=) 56...Rd6–/+ 57.Rc7 Ke6 58.Rh7 c3 59.Rh6 b4 60.Rc1 Rc6 61.Rh8 b3 (better is 61...Rb5 62.h6 Kf7 63.Rh7 Kg6+=) 62.f4?? (better is 62.Rb8+=) 62...Rb5 (62...b2 63.f5 Kd7 64.Rd1 Rd6 65.Rb1–+) 63.f5? (better is 63.Rd1 Rd6 64.Re8 Kd7 65.Rde1 Rd3 66.Kh4–+) 63...Kd5 64.h6 b2 65.Rd8 Kc4 66.Rc3 Kc3 67.h7 (67.Rd1 b1Q 68.Rb1 Rb1–+) 67...b1Q 68.h8Q Qg1 69.Kf3 Qf1 70.Kg3 Re5 (70...Re5 71.Qh6 Re2–+) 0–1. Sapareva,Magdalena (1645) – Yotov,Lyuben (1885), Sofia BUL, Seniors Ch, 2012.

3.d4 e6 4.a3 Ngf6 5.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.d4).

3.e3 Nb6 4.d4 Nf6 5.a4 Bd7 (5...e6 6.a5 Nbd7 7.Ra4+=) 6.b5 Nc4 (6...a6 7.a5 Nc4 8.Bc4 dc4 9.ba6 Ra6 10.Nf3=) 7.Bc1 (7.Bc4 dc4 8.Qe2 a6 9.Qc4 Be6=) 7...Bg4 (7...a6 8.Bc4 dc4 9.ba6 Ra6 10.Nc3+=) 8.Be2 (8.f3 Bd7=) 8...Be2+= 9.Ne2 e5 10.0–0 Bd6 11.Nd2 Nd2 12.Bd2 0–0 13.Nc3 (13.de5!? Be5 14.Bc3=) 13...c6+= 14.bc6 bc6 15.Qe2 a5 16.e4?? (16.f4 ed4 17.ed4 Re8+=) 16...de4?? (better is 16...ed4 17.Nd1 de4–+) 17.Ne4 Ne4 18.Qe4 Qc7 (18...ed4 19.Qc6 Rc8 20.Qa6+=) 19.h3 (19.Bc3 f5 20.Qh4 ed4 21.Bd4 f4=) 19...g6 (19...ed4 20.Rfe1 Qd7 21.Qd3–/+) 20.c4 (20.Bc3 f5 21.Qd3 e4 22.Qc4 Kg7+=) 20...Rfe8 (20...ed4!? 21.Rfe1 f6–/+) 21.c5= Bf8 22.Bf4?? (22.Bc3=) 22...Qd7 (22...ef4!? 23.Qd3–+) 23.Rab1?? (better is 23.de5 Rad8 24.Rfc1+=) 23...Qd4 (better is 23...ef4 24.Qf4 Rad8–+) 24.Qd4–/+ ed4 25.Rb6 Re6 26.Rfb1? (26.Rc1–/+) 26...Bg7?? (better is 26...Bc5 27.Rb8 Rb8 28.Rb8 Kg7–+) 27.Rb8+= Re8 28.Ra8 Ra8 29.Bd6 (29.Rb6 Rc8–/+) 29...h6 30.Kf1 Kh7 (better is 30...Re8!?–/+) 31.Ke2= g5 32.Rb6 Re8 33.Kd3 (33.Kd2+=) 33...Re6? (better is 33...Re1 34.Rc6 Ra1=) 34.f3?? (better is 34.Rc6!? Kg6 35.Rb6+–) 34...Bf6 (34...Re3 35.Kd2–/+) 35.Ra6 (better is 35.Rc6!? Re3 36.Kd2=) 35...Bd8?? (better is 35...Re3 36.Kd2 Ra3 37.Rc6 Ra4+=) 36.Ra8 1–0. Wuenschmann,Bernd – Mueller,Ho3, Dresden GER, 2013.

3.Nf3 a5 4.ba5 Ra5 5.e3 Ngf6 6.Be2 e6 7.0–0 Bd6 8.d4 0–0 9.c4 c6 (9...dc4 10.Bc4 b5 11.Bd3=) 10.c5= Bc7 11.Nbd2 Ng4 12.h3 Nh6 13.Nb3 Ra8 14.g4 (14.Qc2!?+=) 14...Qe8 15.Bd3 e5 (15...f5 16.Qc2+=) 16.Ne5 (16.g5 e4 17.gh6 ed3 18.hg7 Kg7 19.Qd3 Nf6=) 16...Ne5= 17.de5 Be5 18.Bd4 f5 19.g5 Nf7 20.h4 (20.f4 Bc7=) 20...f4 (20...Qe6 21.f4 Bc7 22.h5+=) 21.Qh5 (21.g6 Nh6=) 21...g6+= 22.Qf3 (22.Bg6 hg6 23.Qg6 Kh8 24.Qh5 Kg7=) 22...Nd8 (22...fe3 23.fe3 Bg7 24.Bg7 Kg7 25.Qf4=) 23.Rae1 Bd4 (23...Ra2 24.ef4 Ra3 25.Re5+–) 24.ed4 (worse is 24.Nd4 fe3 25.Qe3 Qd7–/+) 24...Qf7 25.Bb1 Ne6 26.Re5 Ra3 27.Rd1 Qc7 28.Qe2 f3 29.Qb2 Ra4 30.Rde1 Rf4 (30...Nf4 31.R1e3 Qd7–+) 31.Re6?? (31.h5 Rg4 32.Kh1 Rh4 33.Kg1 Rh5 34.R1e3–+) 31...Rg4 (worse is 31...Be6 32.Nd2 Rg4 33.Kf1–+) 32.Kf1 Be6 33.Re6 Qh2 (33...Qh2 34.Re8 Kf7 35.Re7 Ke7 36.Qe2 fe2 37.Ke1 Qg1 38.Kd2 Qd1 39.Kc3 e1Q 40.Kb2 Qb1) 0–1. CountFromHolland – Vinci, playchess.de, 2004.

3.Nf3 c6 4.e3 Ngf6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7).

3.g3 b6 4.Bg2 e5 5.Bd5+= c6 6.Bc6+– Rb8 7.Be5 Bb7 8.Bb7 Rb7 9.Bb2 Bb4?? 10.Nf3 Ngf6+/– 11.0–0 0–0 12.d4 a5 13.a3 Bd6 14.Nbd2 a4 15.Nc4 Qe7 16.e4 Ne4 17.Re1 f5 18.d5 b5 19.Ncd2 Ndc5 20.Ne4 Ne4 21.Nd4+= Be5? 22.Nc6+– Qc5 23.Nd4?? Qd5 24.Rb1 f4?? 25.Qd3?? Bd4?? 26.Bd4?? Re8?? 27.f3 fg3?? 28.fe4+– Qg5 29.Qg3 Qg3 30.hg3 Rd7 31.c3 g5 32.Rb5 Rde7 33.Rg5 Kf8 34.Rf1 Rf7 35.Bc5 Ree7 36.Be7 Ke7 37.Rf7 Kf7 38.Rd5 Kg6 39.c4 h5 40.c5 Kh6 41.c6 (41...h4 42.gh4 Kg7 43.c7 Kg6 44.c8Q Kg7 45.Rd7 Kf6 46.Qc5 Kg6 47.Qg5#) 1–0. Knight – Master1, mySchach.de, 2004.

3.g3 Nb6 4.e3 Nf6 5.Nf3 Nc4 6.Bd4 e5 7.Ne5 Nb2?? (better is 7...Ne5 8.Be5 Bb4=) 8.Bb2 +– 1–0. marekt – Unicorn5, ChessWorld.net, 2013.

3.g3 e5 4.Bg2 c6 (--> 1.b4 c6 2.Bb2 d5 3.g3 Nd7 4.Bg2 e5).

3.a3 e5

(--> 1.b4 e5 2.a3 d5 3.Bb2 Nd7).

4.e3 Bd6 5.Nf3 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3).

4.e3 f6 5.Nf3 (--> 3.e3 e5 4.Nf3 f6 5.a3).

4.e3 Ngf6 5.Nf3 Bd6 6.c4 dc4 7.Bc4 e4 8.Nd4 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6 6.c4 dc4 7.Nd4 e4 8.Bc4).

4.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7).

3.a4 e5

4.c3 a6 5.g3 c5 6.Bg2 Ngf6 7.bc5 Bc5 8.d4 ed4 (8...Bd6 9.Ba3 Ba3 10.Ra3+=) 9.cd4 Bb4 10.Bc3 Bc3 (10...Bd6 11.Qb3=) 11.Nc3 Attacks the isolani on d5 11...Nb6 (11...Qa5 12.Qd2 Nb6 13.Ne4 Qd2 14.Nd2=) 12.e3 (12.a5!? Nc4 13.Nd5 Nd5 14.Qa4 Bd7 15.Qc4+/–) 12...Nc4 13.Nge2 0–0 (13...Be6 14.Rc1=) 14.0–0 (14.Qb3 Na5 15.Qa2 Be6=) 14...Bg4 (14...Bf5 15.Nf4 Be4 16.Qe2 Bg2 17.Kg2=) 15.h3 (15.Qd3 Rc8+=) 15...Bf5 16.Nf4 Increasing the pressure on the isolated pawn on d5 16...Be4 17.Qe2 Bg2 18.Kg2 Rc8 19.Rfc1 Re8 20.Kh2 Qa5 (20...g5 21.Nd3=) 21.Ncd5+= Nd5 22.Rc4 Nf4 23.Rc8 Rc8 (23...Ne2?? 24.Re8) 24.ef4 b5 (24...Qb4 25.Qd1+=) 25.Rc1!? Rd8 (25...Rc1 26.Qe8 Mate attack) 26.ab5 ab5 27.Rc5 Qb4 28.Rb5 Qd4 29.Re5 h6 30.Re4 Qb6 31.Re8 Re8 32.Qe8 Kh7 33.Qe4 Kg8 34.Kg2 Qf6 35.g4 g6 36.Qe8 Kh7 37.Qe4 Kh8 (37...Kg8 38.Kg3 Qc3 39.Qe3 Qc4+/–) 38.Kg3 Qc3 39.Qf3 Qe1 40.Qe3 Qa1? (better is 40...Qd1+/–) 41.Qe8 Kg7 42.Qe5 Qe5 43.fe5 f6 (43...Kf8 44.g5! h5 45.f4+–) 44.f4 (44.e6 Kf8 45.f4 Ke7+–) 44...g5 (44...Kf7 45.Kf3 fe5 46.fe5 Ke7+–) 45.e6 Kf8 46.f5 Ke7 47.h4 (47.Kf3 Kd6 48.Ke3 Ke7+–) 47...Kd6 48.h5 Ke7 49.Kf3 Kd6 50.Ke4 Kc6 51.Kd4 (better is 51.e7!? Kd7 52.Kd5 Ke7+–) 51...Kd6 52.Kc4 Kc6 53.Kb4 Kd6 54.Kb5 Ke7 55.Kb6 Kd6 56.Kb5 Ke7 57.Kc5 Ke8 58.Kd6 Kd8 59.e7 Ke8 60.Kc7 Ke7 61.Kc6 Kf7 White now must not overlook the idea Kc7 62.Kd6 Kf8 63.Ke6 Kg7 (63...Ke8 64.Kf6 Kf8 65.Kg6 Ke7 66.Kg7 Kd6 67.Kh6 Kd5 68.Kg6 Ke4 69.Kg5 Ke5 70.h6 Ke4 71.h7 Kf3 72.f6 Ke4 73.f7 Ke3 74.h8Q Kd3 75.Qb2 Ke4 76.Qd2 Ke5 77.f8Q Ke6 78.Qdd6) 64.Ke7 Kg8 (64...Kh7 65.Kf6 Kh8 66.Ke7 Kh7 67.f6 Kh8 68.f7 Kg7 69.f8Q Kh7 70.Qf5 Kg7 71.Qg6 Kh8 72.Qh6 Kg8 73.Qg5 Kh7 74.Kf6 Kh8 75.Qg7) 65.Kf6 Kh7 (65...Kf8 66.Kg6 Ke7 67.Kg7 Kd7 68.Kh6 Kd6 69.Kg6 Ke5 70.h6 Kf4 71.f6 Kg4 72.f7 Kg3 73.Kg5 Kg2 74.f8Q Kg1 75.h7 Kg2 76.Qa8 Kf2 77.Qe4 Kf1 78.Qe3 Kg2 79.h8Q Kf1 80.Qhh3) 66.Kf7 (66.Ke7 Kg7 67.f6 Kg8 68.f7 Kg7 69.f8Q Kh7 70.Qb8 Kg7 71.Qc7 Kg8 72.Kf6 Kf8 73.Qd8) 66...Kh8+– 67.Kg6 1–0. De Visser,Arno – Greku, 1995.

4.Be5 Nc6 5.d4 +=.

4.Nf3 Bd6 +=.

3.c4 dc4

4.Na3 Nb6 5.Qc2 Qd6 6.Nc4 Qb4 +=.

4.Na3 e5 5.Nc4 Bb4 6.Ne5 Ne5 7.Be5 Nf6 (better is 7...Bf8!?=) 8.Qa4+/– (8.Qa4 Nd7 9.Bg7+/–) 1–0. Woelfelschneider,Peter – Robers, 2009.

4.e3 b5 5.a4 c6 6.ab5 cb5 7.Nc3 Ne5 (better is 7...Rb8!? 8.Ra7 e5=) 8.Nb5+/– Nd3?? (better is 8...Bd7 9.Be5 Bb5+/–) 9.Bd3+– cd3 10.Rc1 (10.Ra7?! Ra7 11.Na7 Bb7+=; 10.Na7?! Bb7 11.f3 Qd7+=) 10...f6 (10...Qd7 11.Nc7 Kd8 12.Na8+–) 11.Nc7 Kf7 12.Na8 Bb7 13.Nc7 Bg2 (13...e6 14.Qg4 Qe7 15.Ne6+–) 14.Qb3 Kg6 15.Ne6 Qa8 16.Nf4 Kh6 17.Qf7 g6 18.Ng2 Qg2 19.Qf8 Kh5 20.Rc5 g5 (20...f5 21.Rf5! gf5 22.Qf5 Kh6 23.Bh8 a6+–) 21.Qf7 Kh6 22.h4 (22.h4 Qf2 23.Kf2 e5 24.hg5 Kg5 25.Qh5#) 1–0. Woelfelschneider,Peter – DieInge, 2009.

4.e3 Nb6 5.Nf3 Bf5 6.Na3 Bd3 7.Rc1 (7.Ne5 e6+=) 7...Qd5 (7...e6 8.Bd4 Bf1 9.Rf1+=) 8.Bd3+= Qd3 (8...cd3!? 9.Rc7 Qa2+=) 9.Ne5+= Can c4 get defended? 9...Qd5 10.0–0 (worse is 10.Nac4 f6 11.Nb6 ab6+=) 10...e6 11.e4 (11.Nec4!? c6 12.d3+=) 11...Qe4+= 12.Nb5 Bd6 (better is 12...Rc8!? 13.Na7 Rd8+=) 13.Nc4+= Nc4 (13...Qc4 14.Rc4) 14.Bg7+– Qd5 15.Nd6 cd6 16.Bh8 e5?? (better is 16...Nd2 17.Re1 Kd7+–) 17.Qg4 f6 (17...Nh6 18.Qc4 Qc4 19.Rc4+–) 18.Rc4 b5 (18...f5 19.Qh4 b5+–) 19.Rc7 Qf7 20.Rf7 Kf7 21.Rc1 Ne7 22.Qg7 Ke6 23.Qf6 Kd7 24.d4 e4 25.d5! Nd5 Deflection from f5 (25...Rc8 26.Qe6 Kd8 27.Qd6 Ke8 28.Rc8 Nc8 29.Qe6 Kf8 30.Qc8 Kf7 31.Qd7 Kg6 32.g4 Kg5 33.Qf5 Kh4 34.Qh5) 26.Qf5 Theme: Double Attack 26...Ke7 (26...Ke8 27.Qd5 Rd8 28.Rc7 Rd7 29.Qe6 Kf8 30.Rc8 Rd8 31.Rd8) 27.Qd5 Rh8 (27...Rb8 28.Rc7 Kd8 29.Qd6 Ke8 30.Qe7) 28.Rc7 Kf6 29.Qd6 Kf5 30.Rc5 Kg4 31.Qg3 1–0. Woelfelschneider,Peter – Ramin, 2010.

4.e4 e6 (4...Nb6 5.Na3 Nf6 6.Qc2 e6+=; 4...b5 5.Nc3 a6 6.a4 Rb8+=; 4...a5 5.ba5 Ra5 6.Bc4 Nb6+=; 4...Ngf6 5.Bc4 e6 6.e5 Nd5+=) 5.b5 (5.Bc4 A) 5...Bb4?? 6.Bg7 Qh4 7.Qe2+– (7.Bh8?! Qe4 8.Be2 Qg2+–); B) 5...Qg5+= 6.Nf3 Qg4+=; C) 5...Ngf6 6.e5 Nd5+=) 5...Ngf6 (5...Nc5 6.Bc4 Ne4 7.Nf3–/+) 6.Bc4 (6.e5 Nd5+=) 6...Ne4–/+ 7.Nf3 a6 (7...Nb6 8.Be2–/+) 8.ba6 ba6 (8...b6 9.0–0–/+) 9.Nc3 Ng5 10.0–0 Rb8 11.Rb1 Nf3 12.Qf3 Ne5 13.Qe2 Nc4 14.Qc4 Rb4 (14...Qd2? 15.Rfd1 Rb2 16.Rb2 (16.Rd2?! Rd2 17.Qc7 Rd8+–) 16...Qb2 17.Qc7+–) 15.Qc6 (15.Qe2 Bd6–/+) 15...Qd7 16.Qf3 Bb7 (worse is 16...Qd2 17.Rfd1 Bb7 18.Rd2 Bf3 19.gf3+=) 17.Qg3 f5 18.h3 Bd6 19.f4 0–0 20.Ba3 Rb1 21.Rb1 Ba3 22.Rb7 Bc5 (22...Qd2?! 23.Rc7 Qd4 24.Kh2–/+) 23.Kh2 Bb6 0–1. Bonatti,Aldo (2020) – Wallner,Josef (2330), ICCF WSTT/3/06/4, 2006.

3.e3 c5

4.a3 Qb6 5.c3 (5.Nc3 Ngf6= (< 5...cb4 6.Nd5 Qd6 7.Nb4+/–)) 5...Ngf6 (5...a5 6.Qc2=+) 6.Nf3 Ne4 (6...e5 7.d4 cd4 8.cd4=+) 7.d3 Nd6 8.Be2 g6 (better is 8...e5!?=) 9.c4+/– Rg8 10.b5 (better is 10.cd5!? cb4 11.0–0+/–) 10...Bg7 11.Bg7 Rg7 12.0–0 Nf5 (12...dc4 13.dc4 Qa5 14.Qc2+=) 13.Nc3 (13.cd5 Qb5 14.Nbd2+/–) 13...Qd6? (better is 13...d4!? 14.Nd5 Qd6+=) 14.Nd5 b6 15.d4 Bb7 16.dc5 (16.e4!? Nd4 17.Nd4 cd4 18.Qd4 e5+/–) 16...Nc5+/– 17.Nc3 (17.Qc2 Bd5 18.cd5 Qd5+/–) 17...0–0–0 (17...Qd1 18.Rfd1 Rc8 19.Nd4+=) 18.Qd6 (18.Qc2 Qd7+/–) 18...ed6? (better is 18...Nd6!? 19.Rad1 Bf3 20.Bf3 e6=) 19.a4 (better is 19.Rad1+/–) 19...a5? (better is 19...h6!?+/–) 20.ba6+– Na6 21.Rfb1 Kc7 22.Nd5 (22.Ra2!? Nc5+–) 22...Bd5 23.cd5 Nc5 24.a5 ba5 25.Ra5 Kd7? (25...Rb8 26.Ra7 Kc8 27.Rba1+–) 26.Ra7 (better is 26.g4!? Nh6+–) 26...Ke8 27.Bb5 Kf8 28.Be2?? (28...Ke8 29.Kf1+–; better is 28.Rba1 h5 29.e4+–) 1–0. Royalfork – Itchy, Live Game Caissa's Web, 2004.

4.a3 e5 5.bc5 Bc5 6.d4 =.

4.b5 b6 5.c4 e6 6.Nf3 Ngf6 7.Be2 Bd6 8.0–0 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6).

4.bc5 Qa5 =.

3.e3 e5=+

4.c4 dc4 5.Bc4 Bd6 6.Qb3 (6.Nf3 Ngf6=) 6...Qe7+= 7.Nc3 Ngf6 8.Nb5 (8.Nf3 0–0+=) 8...0–0 9.Nd6 cd6 10.Nf3 Nb6 11.0–0 (11.Be2 Be6 12.Qa3 Nc4 13.Bc4 Bc4+=) 11...Nc4 12.Qc4 Bg4 (12...Be6 13.Qh4–/+) 13.Rfc1 (13.Ng5 Rac8 14.Qd3 h6+=) 13...Rac8–/+ 14.Qf1 (14.Qb5 a6 15.Qa5 Bf3 16.gf3 Qe6–/+) 14...Nd5 (14...Qe6 15.d4 e4 16.Nd2–/+) 15.a3 Bf3 16.gf3 Qe6 (16...Nb6 17.Rc8 Rc8 18.Rc1–/+) 17.Rc8+= Rc8 18.Rc1 Qg6 19.Kh1 Rc1 20.Qc1 Qf5 21.Kg2 h5 (21...Qe6 22.d3+=) 22.Qc4 Qg6 23.Kf1 Qb1 24.Ke2 Nb6 25.Qc3 f6 26.Bc1 Kh7 27.Qc7 Kh6 (27...d5 28.d3=) 28.e4= Qa2 29.Ke1 (29.Qd6 Qc2 30.Qb8 Qc1 31.Qh8 Kg6 32.Qe8 Kg5 33.h4 Kh4=; 29.Qb7 Qc2 30.Qb8 h4–+ (30...Qc1?! 31.Qh8 Kg6 32.Qe8 Kg5 33.h4 Kh4 34.Qg6 Qc4 35.Ke1 Qc1 36.Ke2 Qc4 37.Ke1 Qc1 38.Ke2=)) 29...Kh7 30.d3 (30.Qd6?? Qc2–+; 30.Qb7?? Qc2 31.Qf7 Qc1 32.Ke2 Kh6 (32...Qa3?! 33.Qh5 Kg8 34.Qe8 Kh7 35.Qh5 Kg8 36.Qe8 Kh7 37.Qh5=) 33.Qa7 Nc4–+) 30...Qb1 31.Ke2 Na4 32.Qc8 Qa2 33.Bd2 Qf7 34.Qd8 Qe6 35.Qc7 b5 36.Qc2 d5 (36...Qd7 37.Be3=) 37.Qb3+= Nb6 38.Be3 Qc8 (38...Qc6!? 39.Bb6 ab6 40.ed5 Qd6+=) 39.ed5+/– Na4 (39...Qd7 40.Bb6 ab6 41.d4 ed4 42.Qd3 Kg8 43.Qd4+/–) 40.Bc5! (worse is 40.Ba7 Qc1 41.d4 Nc3 42.Kd3 Nb1=) 1–0. Mehlhorn,Uwe (2145) – Milov,Leonid (2430), Apolda Open, 2016.

4.c4 dc4 5.Bc4 Ngf6 6.a3 Bd6 7.Nc3 c6 8.Nf3 0–0 9.0–0 e4 10.Ne1 (10.Nd4 Be5+=) 10...Qc7 (10...a5 11.d3 Ne5 12.b5–/+) 11.h3 (11.f4 Nb6 12.Be2 Nbd5+=) 11...Ne5 (11...b5 12.Bb3=) 12.Bb3 a6 (12...Be6 13.Be6 fe6 14.Qb3+=) 13.f4 (13.d4 Ng6=) 13...ef3+= 14.Nf3 Nd3 15.Qc2 Nb2 16.Qb2 Bf5 17.Rac1 (17.Bc2 Be6=) 17...Rfe8 (17...Bd3 18.Rfd1+=) 18.Rfe1 (18.Ng5!? Bg6 19.Bc2+=) 18...Bg3 19.Rf1 Bd3 20.Ng5 (20.Rfd1 Rad8+=) 20...Bf1 (20...Rf8 21.Rfd1–/+) 21.Bf7+= Kh8 22.Be8 Re8?? (better is 22...Bc4 23.Nce4 A) worse is 23...Re8 24.Rc4 Ne4 25.Re4 (worse is 25.Ne4 b5 26.Rd4 Bh2 27.Kh1 Be5+=) 25...Re4 26.Ne4+/–; B) 23...Ne4 24.Ne4 Bd5 25.Ng3 Qg3–+) 23.Rf1+/– h6 24.Rf6 (better is 24.Nf3!?+/–) 24...gf6+= 25.Nce4?? (better is 25.Nf3+=) 25...Be5–+ (25...hg5?! 26.Qf6 Qg7 27.Qg7 Kg7 28.Ng3=) 26.d4 hg5 27.de5 Qe5 28.Qe5 Re5 29.Nf6 Re3 30.Kf2 Ra3 31.Nd7 Rb3 32.Ne5 Kg7 33.Ke2 Rb4 34.Nd3 Rb5 35.g4 Kf6 36.Ke3 Rb3 37.Ke4 Rd3! 38.Kd3 Ke5 39.h4 gh4 40.g5 h3 41.g6 Kf6 42.Ke3 h2 43.Kf3 h1Q 44.Kg3 Qg1 45.Kh3 Qg6 46.Kh4 Kf5 47.Kh3 Kf4 48.Kh2 Kf3 49.Kh1 Qg2# 0–1. wlittle (2245) – tonyh (2385), net–chess.com, 2004.

4.c4 c6 (--> 1.b4 c6 2.c4 d5 3.e3 e5 4.Bb2 Nd7).

4.c4 Ngf6 5.Qb3 dc4 6.Bc4 Qe7 7.Nc3 (7.Nf3 c6=) 7...Nb6+= 8.a3 Nc4 9.Qc4 Be6 (9...a5!? 10.Nf3 ab4 11.ab4 A) worse is 11...Qb4 12.Ra8 Qc4 13.Rc8 Ke7 14.Ba3 Ke6 15.Bf8+/– (15.Rf8?! Rf8 16.Bf8 Nd7 17.Ng5 Kf6 18.Nge4 Kg6+=); B) 11...Ra1 12.Ba1 B1) worse is 12...Qb4 13.Qc7 (worse is 13.Ne5 Qc4 14.Nc4 Be6+=) 13...Qc5 14.Qe5 Qe5 15.Ne5+/–; B2) 12...c6=) 10.Qb5= c6 11.Qe5 Qd6 (11...a5 12.b5=) 12.Qd6 Bd6 13.Nge2 0–0 14.0–0 (14.Nd4 Bc8+/–) 14...Rad8 (14...a5 15.b5+=) 15.d4 (15.d3 Rfe8+=) 15...Rfe8 16.Rfe1 Bc4 17.Rac1 Bb3 18.Ng3 Bg3 19.hg3 (worse is 19.fg3 Ng4+=) 19...Ne4 (19...a6 20.f3+=) 20.Ne4+/– Re4 21.Rc5 (21.f3 Re7+/–) 21...a6 (21...Re6 22.f3+/–) 22.f3 Re7 23.Kf2 f6 24.Rh1 Rd5 25.Rc3 Ba4 26.Rc5 (26.Rcc1 Bb5+/–) 26...Bb3 27.Rd5 (27.g4!?+/–) 27...cd5+= 28.Rc1 Bc4 29.e4 b5 30.Ke3 f5 31.e5+/– g5 32.Rh1 Kg7 33.Rc1 Kg6 34.Ra1 Rc7 35.Rc1 Rc6 36.Rc2 Rc8 37.Rf2 Rf8 38.Rc2 Re8 39.g4 fg4 40.fg4 ½–½. Stankovski,Marin – Stavrev,Valeri, BUL–chT Plovdiv, 2003.

4.c4 Ngf6 5.c5 c6 6.Nf3 Qc7 7.d4 e4 8.Ne5 (8.Nfd2 b6+=) 8...Ne5+= 9.de5 Ng4 (9...Nd7 10.Qd4–/+) 10.Qd4+= Be6 11.h3 Nh6 12.g4 (12.Nd2 Nf5 13.Qc3 Be7+=) 12...Be7–/+ 13.Nd2 0–0 14.Be2 f5 15.f3 (15.Rg1 fg4 16.Bg4 Ng4 17.hg4 Bh4–+) 15...ef3 16.Bf3 b6 17.Nb3 fg4 18.Bg4 Ng4 19.hg4 Bg5 20.Ke2 Qc8 21.Rhg1 (21.Ke1 Qa6–/+) 21...Qa6 22.Ke1 Rf3 23.Bc1 Raf8 (23...Raf8 24.Kd1 Be7–+) 0–1. Palikarski,Vasil – Badev,Kiril (2275), BUL–ch qual Velingrad, 2004.

4.d3 Bb4–/+ 5.Nd2 c6 6.Be2 Ne7 7.Ngf3 Ng6 8.0–0 0–0 9.c3 Bd6 10.c4 Kh8 11.Rc1 f5 12.cd5 cd5 13.Qb3 Nc5 14.Qd1 Bd7 (14...Qb6 15.d4 Qb2 16.dc5–/+) 15.Ne5=+ Ne5 (< 15...Be5 16.Be5 Ba4 17.Nb3 Bb3 18.ab3 Ne5 19.Rc5+=) 16.Be5 Be5 17.Rc5 Be6 18.d4 Bd6 19.Rb5 f4 (19...Qc7 20.Nf3=) 20.Nf3 (20.Rb7!? fe3 21.fe3+=) 20...b6= 21.ef4 Bf4 22.Ne5 Qf6 23.Bf3 The isolani on d5 becomes a target 23...Be5 24.de5 Qe5 25.Re1 Qf6 26.Qe2 Rae8 27.Qd2 Bd7 (27...Bf7!?–/+) 28.Rd5=+ Re1 (28...Bc6 29.Rd3=+) 29.Qe1 Re8 (29...Bc6 30.Rd3=+) 30.Qd1 (30.Qb1 Bc6 31.Rh5 Qg6 32.Rh7 Kh7 33.Qg6 Kg6–+) 30...Bc6 31.Rd3 Bb5 (31...Ba4 32.Qb1=) 32.Rc3?? (better is 32.Re3=) 32…Qc3–+ (33.h4 Re1 34.Kh2 Rd1 35.Bd1 Qc4–+) 0–1. calu_mishu (1650) – juanpacio (1705), internet, 2006.

4.d3 Bb4!? 5.Nd2 Ngf6 –/+.

4.d3 f6 5.b5 (5.a3 c5=) 5...b6 (5...Ne7 6.c4+=) 6.Nf3 (6.c4 dc4 7.Qh5 g6=) 6...Bb7 (6...a6 7.d4 ab5 8.Bb5=) 7.Be2 (7.d4 Bb4 8.c3 Ba5+=) 7...Ne7 (7...a6 8.ba6 Ba6 9.0–0=) 8.0–0 Nc5 (8...a6 9.a4=) 9.Nbd2 (9.d4 ed4 10.Nd4 a6+/–) 9...Qd7 (9...Na4 10.Rb1+=) 10.d4 (10.a4 Ne6+=) 10...ed4 (better is 10...Na4!? 11.Rb1 e4+=) 11.ed4 (11.Bd4 a6 12.ba6 Na6+=) 11...Ne6 (11...Na4 12.Rb1+=) 12.Nb3 (12.Re1 Nf4+=) 12...0–0–0 (12...Nf4 13.Bc1 Ne2 14.Qe2=) 13.c4 (better is 13.a4!?+=) 13...dc4+= 14.Bc4 Nd5 15.Bd5 (15.Nbd2!?=) 15...Qd5 16.a4 Ng5 17.Nbd2 (better is 17.Ne1!?+=) 17...Bb4–+ 18.h4 Bd2 19.hg5 Bg5 20.Qd3 (20.Bc1 Bc1 21.Rc1 Qf5+=) 20...h5 (20...Bf4 21.Rfe1–/+) 21.Rfe1 (better is 21.Bc1!?+=) 21...h4–+ 22.a5 h3 23.ab6 hg2 (23...hg2 24.ba7 Bd2 25.a8Q Ba8 26.Ra8 Qa8–/+; 23...ab6 24.Re7–+) 0–1. abt – JNic3, Live Game Caissa's Web, 2004.

4.Nf3 Bb4 5.Ne5 Ne5 6.Be5 Nf6 7.Bc3 Bc3 8.Nc3 0–0 9.Be2 c6 10.d4 Ne4 11.Ne4= de4 12.0–0 f5 13.Bc4 Kh8 14.Bb3 Qe7 15.c4 Be6 16.Qc2 Rad8 17.c5 Bb3 18.ab3 a6 19.b4 Qe6 20.Rfc1 Qd5 21.Qc4= f4 22.Qd5 Rd5 23.Rc2 fe3 24.fe3 Rdf5 25.Rcc1 Rf2 26.Rf1 Rf1 27.Rf1 Kg8 28.Rf8 Kf8 29.Kf2 Kf7 30.Kg3?? Ke6 31.Kf4 Kd5 32.g4 h6 33.h4 g6–+ 34.g5 h5 35.Kg3 Kc4 36.Kf4 Kd3 37.Ke5 Ke3 38.Kf6 Kd4 39.Kg6 e3 40.Kh5 e2 41.g6 e1Q 42.Kg5 Qe3 (43.Kf6 Qe5 44.Kf7 Qf5 45.Kg7 Ke5–+) 0–1. tanto (1635) – tomy (1900), net–chess.com, 2001.

4.Nf3 Bb4 5.Ne5 Ne5 6.Be5 Nf6 7.Be2 0–0 8.0–0 c5 (8...Re8 9.d4=) 9.d4 b6 (9...c4 10.a3 Be7 11.Nc3=) 10.a3 (10.c3!? Ba5 11.dc5 bc5 12.Bf6 Qf6 13.Qd5+/–) 10...Ba5= 11.c4 (11.Bb5 Qe7=) 11...Bb7 12.Nd2 (12.dc5 bc5 13.Nd2 Bc7 14.Bc7 Qc7 15.cd5 Bd5=) 12...Bc3 13.Ra2 (13.Rb1 Rc8=) 13...cd4 14.ed4 (worse is 14.Bd4 Bd4 15.ed4 dc4 16.Bc4 Qd4–/+) 14...dc4 15.Nc4 (15.Nb1!? Ba5 16.Bc4=) 15...Qd5–/+ 16.Bf3 (16.f3 Rfd8–/+) 16...Qc4+= 17.Rc2?? (better is 17.Bb7 Qa2 18.Ba8 Ra8 19.Bf6 Qa3 20.Qf3+=) 17...Nd5–+ 18.Qc1 (18.Bd5 Bd5 19.Qc1–+) 18...Rfc8 (better is 18...Rfe8–+) 19.Qg5 f6 20.Bd5?? (20.Bf6 Nf6 21.Bb7+=) 20...Qd5–+ (20...Bd5 21.Bf6 g6 22.Rc3+–) 21.Bf6 Qg5 22.Bg5 Be4 (22...Bd4 23.Rc8 Rc8 24.Rd1–+) 23.Rcc1 (23.Ra2 Bd4 24.Re1 Bc2–+) 23...Bd3 (23...Bd4 24.Rfd1 Bb2 25.Rc8 Rc8 26.Rd7–+) 24.Rfd1 Be2 0–1. SamChess – Wall,Bill, chess.com, 2008.

4.f4 ef4 5.ef4 Ngf6 6.a3 +=.

4.f4 f6 5.Nf3 (5.Nc3 c6 6.a3 Bd6+=) 5...Bd6 (5...ef4!? 6.Nd4 Qe7–/+ (6...Bb4? 7.Ne6 Qe7 8.Nc7 Kd8 9.Na8+–)) 6.fe5= Ne5 (6...fe5 7.c4 dc4 8.Na3=) 7.Ne5 Be5 (better is 7...fe5!? 8.Be5 Nf6 9.Bd6 Qd6=) 8.Be5+/– fe5 9.Qh5 Kf8 10.Qe5 c6 11.Nc3 (11.Qg3!?+/–) 11...Qh4+= 12.g3 Qb4 13.Bb5 (better is 13.Bg2 Qe7 14.0–0 Ke8 15.Qd4+/–) 13...cb5?? (better is 13...Qe7 14.Qf4 Nf6=) 14.0–0+– Nf6 15.Rf6! gf6 16.Qf6 Kg8 (16...Ke8 17.Qh8 Qf8 18.Qh7 Qf7 19.Qf7 Kf7 20.Rf1 Kg7 21.Nd5 Bh3+–) 17.Qg5 (17.Rf1 Qe7 18.Qe7 Bf5 19.Rf5 Rf8 20.Rf8) 17...Kf8 18.Rf1 Ke8 19.Qe5 (19.Qe5 Qe7 20.Qh8 Kd7 21.Nd5+–) 1–0. Wall,Bill – Hayes,Dan, Dayton, OH, 1980.

4.a3

4.a3 (--> 1.b4 e5 2. a3 d5 3.Bb2 Nd7 4.e3).

4.a3 Bd6 5.Nf3 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3).

4.a3 Ngf6 5.c4 c6 6.cd5 cd5 7.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6 6.c4 c6 7.cd5 cd5).

4.a3 Ngf6 5.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6).

4.b5

4.b5 (--> 1.b4 e5 2.b5 d5 3.Bb2 Nd7 4.e3).

4.b5 Bd6 5.Nf3 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3).

4.b5 Ngf6 5.c4 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 Nbd7).

4.b5 Ngf6 5.c4 Bd6 6.Nf3 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6 6.c4).

4.b5 Ngf6 5.Nf3 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6).

4.Nf3 Bd6

5.a3 Ne7 6.Be2 0–0 7.Nc3 c6 8.0–0 Nb6 9.d3 Ng6 10.b5 Bd7 11.bc6 Bc6 12.h3 Qd7 13.Re1 f5 14.g3 (14.Qd2 Rac8+=) 14...Be7 15.d4 e4 16.Nd2 Rac8 17.Nb3 (17.Kh2 Bd6–/+) 17...Nc4 18.Bc4 dc4 19.Nd2 b5 20.Qe2 a5 (20...a6 21.Red1–/+) 21.Rec1 (21.Red1 Qe6–/+) 21...b4 (21...Rf7!?–+) 22.Qc4–/+ Kh8 23.Nd1 Ba4 24.Qa2 Rc2 25.ab4 Rc1 26.Rc1 ab4 27.Nb3 Rd8 28.Ra1 Bc6 29.Nc5 Bc5 30.dc5 f4 31.Bd4 (31.ef4 Qd1 32.Rd1 Rd1 33.Kg2 e3 34.f3 Rd2 35.Kg1 Bf3 36.Bg7 Kg7 37.Qa1 Kf7 38.Qf1–+) 31...fe3–+ 32.fe3 Qh3 33.Qh2 Qf5 34.Qb2 Qg5 35.Bg7 Kg8 36.Bd4 (36.Kf2 Qc5 37.Bd4 Rf8 38.Ke1 Qc4–/+) 36...Nh4 (better is 36...Qg3 37.Qg2 Qg2 38.Kg2 Nh4 39.Kh3 Nf3–+) 37.Kf2 Rf8 38.Ke2 Nf3 39.Nf2 (39.Qb3 Bd5 40.Qb4 A) 40...Nd4 41.Qd4 (41.ed4 Qg3 42.Kd2 Bb3+=) 41...Qh5 42.Kd2+=; B) 40...Qg3–+) 39...Qg3 (39...Nd4?! 40.Qd4 Bb5 41.Ke1 Qg3 42.Qd5 Rf7 43.Ra8 Kg7 44.Qd4 Kh6 45.Qd6 Qd6 46.cd6–/+) 40.Rf1 (40.Qb3 Rf7 41.Ra8 Ba8 42.Bf6–+) 40...Bb5 41.Kd1 Bf1 42.Qa2 b3 43.Qb3 Rf7 44.Qd5 Be2 (better is 44...Bc4 45.Qc4 Qg1 46.Kc2 Qf2 47.Kc3 Qd2 48.Kb3 Nd4 49.ed4 Kg7–+) 45.Kc1 (45.Ke2 Nd4 46.ed4 Qf2 47.Kd1 h6–+) 45...Nd4 (45...Qg1 46.Kb2 Qf2 47.Qd8 Rf8 48.Qd5 Rf7 49.Qd8 Rf8 50.Qd5 Rf7=) 46.Qd8 Rf8 47.Qd5 Ne6 48.Qe6 Kh8 49.Qe4 Rd8 (better is 49...Rf2 50.Qd4 Kg8 51.Kb2–+) 50.c6 (50.Qf4 Qg7 51.Kc2–+) 50...Qg1 (50...Qg1 51.Kb2 Rb8 52.Kc2 Qb1 (52...Qf2?! 53.Qe5 Kg8 54.Qb8 Kg7 55.Qe5 Qf6 56.Qd4–/+) 53.Kd2 Qb2 54.Ke1 Rd8 55.Qe5 Qe5–+; 50...Qf2?! 51.Qe5 Kg8 52.Qg5 Kf7 53.Qd8 Qe3 54.Kb2 Qe5 55.Kc2–+) 0–1. Hohlstein,Walter (1955) – Scholz,Sascha (2040), RSX9E–A00–Sokolsky–2, 2004.

5.b5 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3).

5.Bb5 c6 6.Be2 Ngf6 7.0–0 0–0 8.c4 e4 9.Nd4 Bb4 (9...dc4 10.Qc2–+) 10.cd5–/+ cd5 11.Qb3 (11.Nc3 Ne5–/+) 11...Be7 (11...Bd6 12.Nc3–/+) 12.a4 Nc5 13.Qc2 Bd7 14.Nc3 Rc8 15.Ba3 h6 16.Qd1 b6 17.d3 Nd3 18.Bd3 Rc3–+ 19.Be7 Qe7 20.Bb5 Rfc8 21.Ba6 R8c7 22.Nb5 Bb5 23.Bb5 Qc5 24.h3 Nd7 25.Qh5 Nb8 26.Qe5 Rc8 27.Rfd1 a6 28.Rd5=+ Rc1 29.Rc1= Qc1 30.Kh2?? ab5–+ 31.Rb5 Qc7 32.f4? Qe5 33.Re5 f6 34.Re4 Kf7 35.Rb4 Nd7 36.g4 Rc5 37.e4 Ke6 38.Kg2 Kd6 39.h4 Kc6 40.g5 hg5 41.hg5 fg5 42.f5 Kd6 43.Kf2 Ke5 44.Kf3 Rc3 45.Kg4 Kf6 46.e5 Ne5 47.Kh5 Rh3 48.Rh4 Rh4# 0–1. TIROLOCO – tam, Live Game Caissa's Web, 2004.

5.c4 dc4 6.Bc4 Ngf6 += (worse is 6...Bb4 7.Bf7 Kf7 8.Qb3 Ke8 9.Qb4+/–).

5.c4 c6 6.cd5 cd5 7.Bb5 f6 8.0–0 Ne7 9.d4 (9.Qb3 a6 10.Be2 Qb6=) 9...e4+= 10.Nfd2 0–0 (10...Bb4!? 11.Nc3 a6+=) 11.Nc3 b6 (better is 11...f5!?=) 12.Qb3+/– a6 (12...Kh8 13.Nd5 Bb7 14.Nc3+/–) 13.Bd7 (better is 13.Bc6! Bh2 14.Kh1+–) 13...Qd7+= 14.Nde4 Bc7 15.a4 Kh8 16.Ng3 Bg3 17.fg3 (17.hg3 Re8+/–) 17...Bb7 18.a5 b5 19.Rf4 Rac8 20.g4 (20.Rc1 Qe6 21.Nb1 Nf5=) 20...Rc4 21.Raf1 (21.g5 Ng6 22.Rf3 fg5 23.Rf8 Nf8=) 21...Rfc8 22.g5 fg5 23.Rf8 Rf8 24.Rf8 Ng8 25.Ne2 (25.Na2 Qd6 26.Rf5 Qg6=) 25...Qe7+= 26.Rf5 (26.Rb8 Bc8–/+ (26...Rb4? 27.Qa3+–; worse is 26...Qb4 27.Qb4 Rb4 28.Ba3 Rb1 29.Kf2+=)) 26...Nh6 (26...Qb4 27.Qb4 Rb4 28.Bc1–/+) 27.Re5 Qf8 (27...Rb4? 28.Re7 Rb3 29.Bc1+–; 27...Qb4?! 28.Qb4 Rb4 29.Re8 Ng8 30.Bc1–/+) 28.Rg5 Rb4 29.Qc3 Rc4+= 30.Qb3 Nf5 31.Nf4+= Qf6 32.Nh3? Qe6 33.Kf2? Qe4–+ 34.Nf4 Rc2 35.Ne2 Rb2! 36.Qb2 Qe3 (36...Qe3 37.Ke1 Qg5–+) 0–1. gtate (1780) – tomy (1755), net–chess.com, 2002. (=1.e3 e5 2.b4 d5 3.Bb2 Bd6 4.Nf3 Nd7)

5.c4 Ngf6 6.c5+= e4 (6...Be7!? 7.Be5 Ne5 8.Ne5 0–0+=) 7.cd6+/– ef3 8.dc7 Qc7 9.Qf3 0–0 10.Qd1 (10.Nc3 Qe5+/–) 10...Ne5 11.Na3 Be6 (11...Qe7 12.Rc1+/–) 12.Nc2 (12.Qc2 Qc2 13.Nc2 Nfd7+/–) 12...Rac8 13.Rc1 Qd6 14.Be2 Rfd8 15.0–0 d4 16.Bd4 Ba2 17.Ra1 (better is 17.Ba7!? b6 18.Nd4+/–) 17...Bb3= 18.Rc1 b6 (18...Nc6!? 19.Bc3 Nd5=) 19.Be5+/– Qe5 20.d4 Qe8 21.Bd3 g6 (21...a5 22.ba5 ba5 23.Qf3+/–) 22.Qf3 Kg7 23.Na3 Qa4 24.Nb5 Rc1 25.Rc1 Qb4 26.Na7 Qa3 27.Rc7 Rd7 28.Qc6 (28.Rc6 Be6 29.Qd1 Qa7–+) 28...Ba4 29.Qc4 Rc7 30.Qc7 Qd3 (30...Qd3 31.h3 Qd2–+) 0–1. algernon (2115) – kinderchocolate (2235), net–chess.com, 2013.

5.d3 Ngf6 6.Be2 0–0 7.Nbd2 Re8 8.0–0 Bb4 9.h3 Bd6 10.Nh2 c5 11.Ng4 Ng4 12.Bg4 Nf6 13.Bc8 Rc8 14.f4 ef4 15.ef4 d4 16.Nc4 Bc7 17.a4 Nd5 18.f5 a6 19.Qg4? b5 20.f6 g6 21.Qh4 Kh8 22.ab5 ab5 23.Nd2 Ne3 24.Rf3 Nc2?? 25.Rc1?? Ne3–/+ 26.Rc5? Qd6 27.Ne4?? Qh2 28.Kf2 Nd1 29.Ke1 Nb2 30.Kd2 Qg2 31.Rf2 Qg1 32.Rc1 Bf4! 33.Qf4 Qc1 34.Ke2 Rc2 35.Kf3–+ Nd3 36.Rc2 Qc2 37.Qh6 Ne1 38.Kf4 Qe4 39.Kg3 Qf3 40.Kh4 Re4 (40...Re4 41.Qf4 Qf4) 0–1. horacyad2010 (1605) – chigorin79, kurnik, 2011.

5.Bd3 =+.

5.d4 ed4 6.Bd4 (6.Qd4 Ngf6=) 6...Ngf6 (6...Bb4 7.c3 Bf8 8.c4+=) 7.Bd3 (7.b5!?=) 7...Bb4–/+ 8.Nbd2 (8.c3 Bd6–/+) 8...0–0 (8...c5 9.c3 Ba3 10.Bf6 Qf6 11.Qb3+=) 9.0–0 (9.a3 Bd6–/+) 9...c5 10.Bb2 h6 (10...c4 11.c3 Bd6–/+ (11...cd3?! 12.cb4 Nb6 13.Bd4=)) 11.c4 (11.c3 Ba5+=) 11...dc4–/+ 12.Nc4 (better is 12.Bc4 Nb6 13.Qc2+=) 12...Kh8 (better is 12...b5 13.Nd6 c4–/+) 13.Re1?? (13.a3!? Ba5 14.Na5 Qa5 15.Qc2=) 13...Qc7 (13...Be1 14.Qe1 b5 15.Nd6–+) 14.h3? (better is 14.Ncd2+=) 14...Be1–+ 15.Qe1 b6 (15...b5 16.Nce5 Ne5 17.Be5–+) 16.Nfe5 (16.Rd1 b5 17.Nce5 Qb6–+) 16...Ne5 (16...b5 17.Nd7 Bd7 18.Ne5–+) 17.Ne5 (17.Be5 Qe7–+) 17...Bb7 (17...Be6 18.a3–+) 18.Nc4 (18.Rd1 Rfe8 19.Qc3 Nd5–+) 18...Qc6 (18...b5 19.Na5 c4 20.Be2–+) 19.f3 g5?? (better is 19...Qe6–+) 20.Ne5 Qd6 21.Ng4?? (better is 21.Qc3 Bc8 22.Nc4+/–) 21...Qd3–+ 22.Nf6 Qc2 23.Qc3 (23.Be5 Rfd8–+) 23...Qc3 24.Bc3 Rfd8 25.Nd7 (25.e4 Rd3 26.Rc1 Rad8–+) 25...Kg8 26.Nf6 Kf8 27.Nh7 (27.e4 Rd3 28.Nh7 Kg8 29.Nf6 Kg7–+) 27...Ke7 28.Bf6 (28.e4 Rd6–+) 28...Ke6 29.Bd8 Rd8 30.Re1 Rh8 0–1. gtate (1860) – bar (1930), net–chess.com, 2003.

5.d4 e4!? 6.Nfd2 Bb4 –/+.

5.Be2 Ne7 6.b5 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ne7 6.Be2).

5.Be2 Ngf6 6.0–0 (6.a3 a5+=) 6...0–0 (6...e4 7.Nd4 Bb4 8.a3–/+) 7.d3 Re8 8.b5 c5 9.c4 d4 10.ed4 ed4 11.Nbd2 b6 12.a4 Bb7 13.Re1 Qc7 14.g3 Ne5 15.Ne5 Re5 16.Nf3 Re7 17.Qd2 White prepares the advance a5 17...Qd7 18.Nh4 Rae8 19.Bf1 h6 20.Re7 Re7 21.a5 g5 22.Ng2 Qe8 23.a6 Bc8 24.Re1 Bf5 25.Bc1 Ng4 26.Re7 Qe7 27.f3 Ne5 28.Ne1 f6 29.g4 (29.f4 Nd7=) 29...Bd7 30.h4 Ng6 (worse is 30...gh4 31.Qh6 h3 32.Bh3 Nc4 33.Qg6 Kh8 34.Qh5 Kg7 35.Bh6 Kg8 36.Qg6 Kh8 37.dc4 Qe1 38.Bf1 Qg3 39.Bg2 Qe1 40.Bf1 Qg3 41.Bg2 Qe1 42.Bf1=) 31.h5 Bf4 32.Qd1 Bc1 33.Qc1 Nf4 34.Qd2? (34.Ng2!? Ng2 35.Bg2+=) 34...Qe5 35.Ng2 Ng2 (better is 35...Nh3!? 36.Kh1 f5 37.gf5 Bf5–/+) 36.Qg2+= Kf7 37.Be2 Qe3 38.Qf2 Qe5 39.Kg2 (39.Qg2!?=) 39...Ke6 40.Bf1 f5 41.gf5 Kf5 42.Qg3 Qg3 43.Kg3 Ke5 (better is 43...Be8 44.Bh3 Ke5–+) 44.Be2+= Be8 45.Kg4 Bf7 46.Bf1 Be6 47.Kg3 Bf5 48.Be2 Be6 49.Bf1 Bf7 50.Kg4 Be8 51.Bg2 Bd7 52.Kg3 Bf5 53.Bf1 ½–½. Starr,Albert Martin – Standen,Julian (1640), San Francisco Chernev Memorial, 2008.

4.Nf3 e4

5.Nd4 Bb4 6.Nc6 bc6 7.Bg7 +/–.

5.Ne5 Bb4 6.Nd7 f6 7.Qh5 g6 8.Qd5 Qd7 9.Qe4 Qe7 10.Bb5 Kd8 11.Qd3 Bd6 12.Nc3+/–.

5.Ne5 Ne5 6.Be5 Nf6 7.b5 Bd6 8.Bb2 Qe7 9.Be2=+ Be5 10.Qc1 0–0 11.d4 Bd6 12.0–0 Bg4 13.Nc3 Be2–/+ 14.Ne2 c6 15.c4 cb5–/+ 16.c5 Bc7 17.Qd2 a5 18.a3 Bb8 19.Nc3=+ Qd7 20.Qe2= Qc7 21.f4 Qd7 22.f5 b4 23.ab4 (23...a4 24.b5+=). gtate (1995) – lahar (1945), net–chess.com, 2005.

5.Ne5 Qf6 6.Nd7 Qb2 7.Nc3 Bb4 8.Rb1 Qa3 9.Nd5 Ba5 10.Ne5 Qd6 11.Nc7? Qc7 12.Rb5? a6 13.Rd5 Be6 (14.Ra5 Qa5–+) 0–1. gtate (1930) – alcantxz (2000), net–chess.com, 2004.

5.Ne5 Ngf6 6.a3 Bd6 7.Ng4 0–0 8.c4? (8.Nf6 Nf6 (< 8...gf6 9.Qh5+=) 9.Be2 a5=+) 8...c6 (better is 8...Ng4 9.Qg4 Ne5–+) 9.cd5 cd5 10.Nc3 Ng4 11.Qg4 Ne5 12.Qd1 Be6 13.Nb5 Bg4 14.Qb3 Bb8 15.h3 Bh5 (15...Be6!?=+) 16.Nc3= Qh4? (better is 16...Nf3 17.gf3 Bf3+=) 17.Qd5+– (17.Nd5?! Rd8+=) 17...Nd3 18.Bd3 ed3 19.Qd3 Be5 20.Qb5 Rae8 21.Qb7 (21.Rc1!?+–) 21...Qc4+/– 22.f3 Bg3 (22...Qb3 23.Rb1 Bc3 24.dc3 Re3 25.Kf2+=) 23.Kd1 Rd8? (23...Re3 24.de3 Qd3 25.Kc1 Bf2=+) 24.Qe4+– (24.Qa7?! Qb3 25.Kc1 Rd2 26.Kd2 Qb2 27.Kd3 Rd8 28.Kc4 Be5=) 24...Qc7 25.Qc2 Rc8 26.Rc1 Qb7 27.Qe4 Qd7?! (27...Qb8 28.Nd5 Rc1 29.Bc1+–) 28.Nb1 (better is 28.Qd5 Rfd8 29.Qd7 Rd7 30.Ne4 Rc1 31.Kc1+–) 28...Bg6 29.Qd4 Qa4 30.Ke2 Qa6 31.Rc4?? (better is 31.d3 f6 32.Rc8 Rc8 33.Rc1+–) 31...Qc4–+ 32.Qc4 Rc4 33.Bd4?? (33.Nc3 Rfc8–+) 33...Rfc8 (better is 33...Rd4 34.ed4 Re8 35.Kd1 Bb1–+) 34.d3? (better is 34.Nc3–+) 34...Rc2 (35.Nd2 Ra2–+; 34...Rc1!? 35.Rd1 Rd1 36.Kd1 Bd3 37.Nd2–+) 0–1. Otte,Marco – Jeuken,Karin, Wag.Intcomp Wageningen, 1999.

5.Nd4 Ngf6

6.a3 a5 +=.

6.b5 Nc5 7.Be2 =+.

6.b5 Ne5 7.Be2 Bd6 8.f4 ef3 9.Nf3 Qe7 10.0–0 0–0 11.a4 c5 12.bc6 bc6 13.Na3 Nf3 14.Bf3 Ne4 15.c4 Rb8 16.Qc2 Qh4 (16...Qh4 17.g3 Ng3–+) 0–1. algernon (2515) – stein (2675), net–chess.com, 2011.

6.b5 Be7 7.c4 (7.Be2 0–0=) 7...Nb6+= 8.Na3 (8.cd5 Nbd5 9.d3 Bg4+=) 8...Bg4 (8...Ba3 9.Ba3 dc4–/+) 9.Be2 (9.f3!? Bh5 10.Nf5+=) 9...Be2–/+ 10.Qe2 0–0 (10...Na4!? 11.Bc1 Nc5–+) 11.cd5+= Na4 12.Nc4 Nb2 13.Nb2 Qd5 14.0–0 (14.Qc4 Bc5+=) 14...Rad8 (14...Bc5 15.Nb3–/+) 15.Rac1 (15.d3!?+=) 15...Bc5–/+ (15...Qa2 A) worse is 16.Rc7 Nd5 (16...Qb2?! 17.Re7 Rb8 18.Rc7=) 17.Rb7 Qb2–+; B) 16.Nc4 Bc5 17.Ra1 Qa1 18.Ra1+–) 16.a4 (16.Nb3 Ba3 17.Rc2 Rd7+=) 16...Bd4 17.ed4 Qd4 18.Rc2 Rfe8 19.Nc4 (19.Qe3 Re7–/+) 19...Nd5–+ 20.Ne3 (20.Rb1–+) 20...Ne3 (better is 20...Qa4 21.Re1 Qb3–+) 21.de3–/+ Qd6 22.Qc4 Rd7 23.Qd4 Qd4 24.ed4 f5 25.Rc5 g6 26.Rfc1 Ree7 27.Re5 (27.Kf1 f4–/+) 27...Re5 28.de5 Kf7 29.g3 Ke6–+ (29...Ke6 30.f4 ef3–+) 0–1. Schiavo,Carlos – Del Carril,Jose Maria, corr CAPA, 1991.

6.Bc3 Ne5 7.Be2 c6 (7...Bd6 8.0–0=) 8.d3 (8.0–0 Be7=) 8...Bd6+= 9.Nd2 0–0 10.0–0 Qe7 11.de4 de4 12.a3 Neg4 13.Bg4 Bg4 14.Ne2 a5 (14...Nd5 15.Bd4–/+) 15.ba5 (15.Bf6 gf6 16.h3 Qe5+=) 15...Nd5–/+ 16.Bb2 Bc7 (16...Qh4 17.g3 Qe7 18.c4–/+) 17.c4+= Qd6 Do you see the mate threat? 18.g3 Ne7 19.Bd4 c5 (19...Qe6 20.Rb1+=) 20.Ne4= Qc6 21.Nc5 Bh3 Threatening mate... how? 22.f3 Bf1 23.Qf1 Ra5 24.Nb3 Rh5 25.Nc3 Qh6 26.Qg2 Qe6 27.Qe2 Re8 28.e4 (28.f4 Rh6=) 28...Nf5 29.f4 (29.Rd1!?=) 29...Nd4+= 30.Nd4 Bb6 31.Qd3 Qh3 32.Ra2 Ra5 33.a4 Bc5 34.Ra1 Qd7 35.Rd1 Ra4 36.Na4 Qa4 37.Kg2 Rd8 38.Qb3 Qb3 39.Nb3 Rd1 40.Nc5 b6 41.Na4 Rb1 42.Nc3 Rb2 43.Kh3 Rc2 44.Nd5 Rc4 45.Nb6 Re4 46.Kg4 g6 47.Kf3 Rb4 48.Nd5 Rb3 49.Ne3 f5 50.h3 Kf7 51.Ke2 Ke6 52.Kf3 (52.Kf2 Rb2 53.Kf3 Rh2–+) 52...Kd6 (52...Kd6 53.Kf2 Kc5–+) 0–1. Ringsborg,Allan (2275) – Krueger,Hilmar (2355), corr ICCF EM/MN/007 ICCF Email, 1998.

6.c4 Bb4 7.Qb3 Bd6 8.cd5 –/+.

6.c4 c6 7.Nc3 Bb4–/+ 8.cd5 cd5 9.Qb3 Bc3 10.Qc3 0–0 11.Be2 Ne5 12.h3 a6 13.0–0 Bd7–/+ 14.Rfc1 Nc6 15.d3 Rc8 16.de4 de4 17.Qb3 Nd4 18.Bd4 Bc6 19.Bb6 Qd5 20.Bc4 Qh5 21.g4?? Qh3–+ (22.Rab1 Ng4–+ (< 22...Qg4 23.Kf1–+)) 0–1. gtate (1900) – alaamattar (2195), net–chess.com, 2004.

4.Nf3 f6

5.a3 a5!? =.

5.a3 b6 6.d4 Bb7 (better is 6...e4!? 7.Nfd2 f5=) 7.de5+/– fe5 8.Ne5 c5?? (better is 8...Ne5 9.Be5 Nf6+/–) 9.Qh5+– g6 10.Ng6 Ngf6 11.Bf6 Qf6 12.Nh8 Kd8 13.Nf7 (13.Nf7 Ke7 14.Qh7+–) 1–0. ariejan (1805) – doctorfeelgood (1725), gameknot.com, 2013.

5.a3 c5 6.bc5+= Bc5 7.c4 Nb6 8.cd5 Nd5 9.Bc4 Be6 10.Qb3 b6? (10...Qb6 11.d4 Qb3 12.Bb3 ed4 13.Bd4+=) 11.0–0 (better is 11.e4 Nf4 12.Be6+–) 11...Qd6? (11...e4 12.Ng5 fg5 13.Bg7 Nge7 14.Bh8 Qd6+–) 12.d4+– ed4 13.ed4 (13.Bd4?! Nge7+/–; 13.Nd4?! Bd4 14.Bd4 Rc8+/–) 13...Nge7 14.dc5 bc5 15.Rd1 0–0 16.Nc3 Rfd8 (16...Rab8 17.Qc2 Qc6+–) 17.Nd5 Nd5 18.Rd2 (18.Rd5 Bd5 19.Rd1 Kh8 20.Bd5 Rab8+–) 18...Rab8 (18...Qc6 19.Re1 Bf7 20.Red1+–) 19.Qc2 (better is 19.Qa2!? Qd7 20.Rad1 Qa4+–) 19...Qb6 20.Rad1 Qc6 (20...Nf4 21.Rd8 Rd8 22.Rd8 Qd8 23.g3 Bc4 24.Qc4 (24.gf4?! Qd3 25.Qd3 Bd3+/–) 24...Nd5 25.Qc5+–) 21.Qe4 (better is 21.Bd3 Qb6 22.Bh7 Kh8 23.Bc1+–) 21...Bf7 (21...Rd6+–) 22.Qc2 (better is 22.Bd5 Bd5 23.Rd5 Rd5 24.Rd5 (24.Qd5?! Qd5 25.Rd5 Rb2+–) 24...Rb2 25.Rd8 Kf7 26.Qh7+– (26.Qc6?? Rb1 27.Rd1 Rd1 28.Ne1 Re1)) 22...Rd7?? (22...Be6 23.Bd3 Qb6 24.Bh7 Kh8+–) 23.h3 Rdb7 (23...Kh8+–) 24.Bd5 Bd5 25.Rd5 Rb2 (25...c4 26.Rd8 Qe8 27.Re8 Re8 28.Qc4 Kh8 29.Qc6+–) 26.Rd8 Kf7 (26...Rd8 27.Rd8 Kf7 28.Qb2+–) 27.Qc4 (27.Ng5! fg5 28.Qf5 Ke7 29.Qf8 Ke6 30.Re1 Re2 31.Re2 Qe4 32.Re4) 27...Ke7+– 28.Rb8 (better is 28.Qg8! Rd8 29.Qg7 Ke6 30.Re1 Qe4 31.Re4 Kd5+–) 28...Rb8 29.Nd4! Qb6 30.Nf5 Ke8 31.Qg8 1–0. Fournier,Frederic (1730) – Grimoud,Jacques (1820), Open \ Paris FRA, 2002.

5.a3 c6 6.d3 Bd6 7.Be2 Ne7 8.c4 0–0 9.cd5 cd5 10.0–0 b6 11.Nbd2 Bb7 12.Qb3 Kh8 13.Rac1 Rc8 14.Rc8 Qc8 15.Rc1 Qb8 16.h3 Rc8 17.Rc8 Qc8 18.Qc3 Qc3 19.Bc3 Kg8 20.g4 h6 21.Bb2 Kf7 22.Nb3 Ke6 23.e4 (23.d4 a6+=) 23...d4 (better is 23...de4!? 24.Nfd2 ed3 25.Bd3 a6–/+) 24.Nfd2 b5 (24...Ng6 25.Nc4 Nf4 26.Bf1+=) 25.f3 (25.Bd4 ed4 26.Nd4 Kf7 27.Nb5 Bf4=) 25...a6 26.Kf2 (26.f4 Kf7=) 26...Bc7 (26...Ng6 27.Bc1+=) 27.Bc1 Nc8 (27...g5 28.h4+=) 28.Nf1 (28.f4 Kd6=) 28...Nd6 29.Ng3 Bb6 30.Nh5 Ne8 31.Ng3= g5 32.Nf5+= h5? 33.gh5+– Nf8 34.h6 Kf7? 35.h4 gh4 36.Nh4 Bc8 37.Kg3 Nh7 38.f4 Be6 39.Nc5 Bc5 40.bc5 Bd7 41.fe5 fe5 42.Bg4 Bg4 43.Kg4 Nef6? 44.Kf5 Nd7 45.c6 Nb6 46.Ke5 a5 47.Kd4 b4 48.ab4 ab4 49.Kc5 b3 50.Kb6 1–0. Fournier,Frederic (1845) – sstranyy (1930), Active, 2005.

5.a3 c6 6.Be2 Bd6 7.0–0 Ne7 8.d3 0–0 9.Nbd2 Kh8 10.c4 Qc7? (better is 10...b6!?=) 11.c5+/– Nc5 12.bc5 Bc5 13.d4 Bd6 14.de5 fe5 15.Qc2 (better is 15.e4!?+/–) 15...e4= 16.Nd4 Bh2 17.Kh1 Qd6 18.f4?? (18.N2f3 ef3 19.Nf3 Rf3 20.Bf3–/+) 18...Qh6–+ 19.Rad1 (19.Qd1 Bg3 20.Bh5–+) 19...Bg3 20.Kg1 (20.Bh5 Qh5 21.Kg1 Qh2) Qh2 0–1. Fournier,Frederic (1975) – agemo (2140), Active, 2004.

5.b5 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 Bd6 9.Be2 c6 10.Nh4 Ne7 11.Bh5 g6 12.Bg6?? (better is 12.Be2+=) 12...hg6–+ 13.Ng6 (13.Nf3–+) 13...Ng6 14.0–0 e4 15.Qg4 (15.h3–+) 15...Bh2 16.Kh1 Nde5 (better is 16...Be5!? 17.Kg1 Ndf8 18.Be5 Bg4 19.Bg3–+) 17.Qe2 Bf4 18.Kg1 Bg4 (18...Qd7 19.ef4 Nf4 20.f3 Ne2 21.Kf2 ef3 22.gf3 Rh2 23.Ke1–+) 19.f3 ef3 (19...Bh2 20.Kf2 ef3 21.gf3 Bf3 22.Qf3 Nf3 23.Kf3–+) 20.Rf3 (20.gf3 Bh2 21.Qh2 Nf3 22.Rf3 Rh2–+) 20...Nf3 21.gf3 Bh2 22.Kf1 Bh3 23.Kf2 f5 24.Ke1 Qh4 25.Kd1 Qg3 26.Bh8 Bg1 27.c3 Bf2 28.Kc2 f4 29.Bd4 Bf5 30.Kb3?? fe3 31.Be3 Qd6?? 32.Bf2= Kd7 33.bc6 Qc6 34.d3 Qb5–/+ 35.Kc2?? Qa4 36.Kc1? Nf4 37.Qc2 Qc6 38.Qd2?? Bd3 39.Qf4+– Qc4 40.Qc4 Bc4 41.Bd4 b5 +–. stoker – ERIC3, Live Game Caissa's Web, 2005.

5.b5 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 f6).

3.e3 Ngf6

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 Nbd7).

4.a3 e5 5.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6).

4.a3 e6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 Nbd7).

4.a3 e6 5.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3).

4.c4 c6 5.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.c4).

4.c4 e6 5.a3 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 Be7 5.c4 Nbd7).

4.c4 e6 5.a3 Be7 6.Nf3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 Nbd7).

4.c4 e6 5.a3 Be7 6.Nf3 0–0 7.d4 c6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 c6 7.d4 Nbd7).

4.Be2 g6 5.Nf3 Bg7 6.0–0 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.Be2 0–0 6.0–0 Nbd7).

4.Nf3 e6 5.a3 Be7 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 Nbd7).

4.Nf3 e6 5.b5 Bd6 6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3).

4.Nf3 e6 5.b5 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 Nbd7).

4.Nf3 e6 5.b5 Be7 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.c4 Nbd7).

4.Nf3 g6 5.Be2 Bg7 6.0–0 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.Be2 0–0 6.0–0 Nbd7).

3.Nf3 b6

4.e3 a6 5.Bd3 =.

4.e3 a6 5.Be2 =.

4.e3 Bb7 5.a3 Ngf6 6.c4 (6.Be2 e6=) 6...dc4 7.Bc4 e6 8.d4 Bd6 9.Nbd2 0–0 10.0–0 Qe7 (10...a5 11.b5=) 11.Qe2 (11.Bd3 c5=) 11...a5 12.b5 Rac8 (12...c5 13.e4 cd4 14.e5+/– (14.Nd4?! Bf4=)) 13.a4 (13.e4 c5=) 13...Bb4 (13...c5 14.Rfd1=) 14.Bd3 Rfd8 15.e4 c5 16.bc6 Rc6 17.Rfc1 (17.Rab1 Rdc8=) 17...Rdc8 (17...Rc1 18.Rc1 Bd2 19.Nd2=) 18.Nc4 (18.Rc6 Bc6 19.Rc1 Qd8+=) 18...Nh5 (18...R6c7 19.Nce5=) 19.Qe3+= Ba6 (19...R6c7 20.Rc2+=) 20.Nce5 (20.Na5 Rc1 21.Rc1 Rc1 22.Bc1 Bd3+=) 20...Rc1 21.Rc1 Rc1 22.Bc1 Bb7 23.Bb2 (23.Bb5 Ne5 24.Ne5 Nf6+=) 23...Ne5 (23...Nhf6 24.Qf4+=) 24.Ne5 Qc7 25.Bb1 (25.h3 Nf6+=) 25...Nf6 26.h3 (26.Qf4 Bc6 27.Qc1 Bd6 28.Nc6 Bh2 29.Kh1 Bf4+–) 26…Nd7= ½–½. Fuzishawa – Massardi, corr Brazil, 1995.

4.e3 f6 5.Nc3 (5.Nd4 Nb8+=) 5...Bb7 (5...e5 6.Be2=) 6.Be2 (6.Nd4!? Qb8 7.Bb5+/–) 6...e5= 7.d4 (better is 7.b5!?=) 7...e4–/+ 8.Nd2 Bb4 9.0–0 Ne7 10.Rb1 (10.a3 Bc3 11.Bc3 0–0+=) 10...Bd6 (10...a6!?–/+) 11.Nb5= Nf5 12.c4 a6 13.Nd6 cd6 (13...Nd6 14.c5 Nf5 15.Ba3=) 14.Bg4 g6 (14...Ne7!?=) 15.Bf5+/– gf5 16.Qh5 Ke7 17.Qf5 dc4 (17...Qg8 18.c5+=) 18.Nc4 (better is 18.d5 Qg8 19.Ne4 Qd5 20.Bf6 Nf6 21.Qf6 Kd7 22.Rb6 Qe4 23.Qg7 Kc8 24.Rb7 (24.Qh8?! Kc7 25.Rb7 Kb7+–) 24...Qb7 25.Qh8 Kc7 26.Qh7 Kc6 27.Qg6+–) 18...d5?? (better is 18...Qg8 19.Nb6 Nb6+=) 19.Ba3+– Kf7 20.Nd6 Ke7 21.Nb7 (21.Nb7 Kf7 22.Nd8 Rad8 23.Rfc1+–) 1–0. TriAngel – patriceE, ICC, 1999.

3.Nf3 Nb6

4.e3 Na4 5.Bd4+= a5 6.b5 e6 7.c4 Nc5 8.Qc2 b6 (8...Nd7 9.cd5 ed5 10.Be2+=) 9.cd5 ed5 10.Nc3 (10.Be2+/–) 10...Nf6 (10...Ne7 11.Bc5 bc5 12.e4+=) 11.Be2 (11.Bf6 gf6 12.d4 Ne6+/–) 11...Be7 (11...Bb7 12.0–0+=) 12.0–0 0–0 13.Ne5 (13.Bf6!? Bf6 14.d4+/–) 13...Ne6+= 14.Nc6 Nd4 15.Nd4 Qd7 16.Bf3 Bb7 17.Nce2 Ne4 (17...Rac8 18.Nc6=) 18.Nc6+= Bf6 19.Rac1 Rfe8 20.Nf4 g5 21.Nd5 Qd5 22.d3 Qb5 23.Be4 (worse is 23.de4 Bc6 24.Qc6 Qc6 25.Rc6 Be5+=) 23...Qa6 (23...Qb2 24.Qc4+=) 24.a4 (24.d4+–) 24...Rac8? (better is 24...Kg7!?+/–) 25.d4 (25.Bf5 Qa8+–) 25...Bc6 (25...Re6 26.Bh7 Kg7 27.Bd3+–) 26.Qc6 Kg7 27.Qb7 (27.Bf5!? Rb8 28.Qc7 Qb7+–) 27...Qb7+/– 28.Bb7 Rcd8 (28...Rb8 29.Rc7 Re7 30.Re7 Be7 31.Bc6+/–) 29.Rc7+– Re7 30.Rfc1 Rdd7 31.Rd7 Rd7 32.Bc8 Rd6 33.Kf1 h6 34.Ke2 Bd8 (34...h5 35.Rc4+–) 35.Kd3 Bf6 36.Ba6 h5 37.Rc7 (37.Bb7 h4+–) 37...Bd8 (37...Be5!?+/–) 38.Rb7 h4 (38...Kg6 39.Ke4+–) 39.h3 (39.Bc4 Rf6+–) 39...Rf6? (39...Kg6 40.e4 Bf6 41.d5+–) 40.f3 (better is 40.Rd7+–) 40...Rf5?? (better is 40...Re6+–) 41.Bc4 (41.Rd7 Bf6 42.Bc4 Bd4 43.ed4 Rf6+–) 41...g4 (41...Kf8 42.e4 Rf6 43.d5+–) 42.hg4 h3 43.gh3 (43.gf5!? h2 44.Rf7 Kh8 45.Rf8 Kh7 46.Rd8 h1Q 47.Rd7 Kh8+–) 43...Rf3 44.Ke4 Rh3 45.Rf7 Kg6 46.Rf3 (46.Rb7 Kg5+–) 46...Rh4 (46...Rf3 47.Kf3 Bf6 48.Ke4+–) 47.Be6 Rh8 48.d5 (48.Kd5!? Be7+–) 48...Bc7 49.Rf7 Bd6 (49...Bg3 50.Re7+–) 50.Rd7 Bc5 (50...Bh2 51.d6+–) 51.Kf4 (51.Kf4 Bb4 52.Bf5 Kh6 53.g5 Kh5 54.d6+–) 1–0. Santasiere,Anthony – Kujoth, USA op, 1953.

4.e3 f6 5.d4 =.

4.e3 Bg4 5.h3 Bf3 6.Qf3 Qd6 7.b5 (7.a3 e5=) 7...Nf6 (7...e5 8.a4=) 8.Ba3 Qd7 9.Nc3 g6 10.Rb1 Bg7 11.d4 0–0 (11...0–0–0 12.Bc5=) 12.Bd3+= Ne8 (12...Rfe8 13.0–0+=) 13.Bc5 Nf6 14.a4 Qe6 15.0–0 Nbd7 16.Ba3 Rfe8 17.Ne2 Nb6 (17...Qb6 18.Nf4+=) 18.a5+/– Nc8 19.Nf4 Qd7 20.c4 e6 21.c5 (21.Rfc1 Rb8+/–) 21...c6 22.bc6 bc6 23.a6 Ne7 24.Rb7 Qc8 25.Rfb1 Kf8 (25...e5 26.de5 Nd7 27.Bb2 Ne5 28.Be5 Be5 29.e4 de4 30.Be4 Bf4 31.Qf4+/–) 26.g4 Neg8?? (better is 26...h6+/–) 27.g5+– Nd7 (27...Qd8 28.gf6 Qf6 29.Qg3+–) 28.Rd7! Qd7 Decoy theme: d7 29.Rb7 Qe7 30.Re7 Ke7 31.Qg3 Red8 (31...Kf8 32.Qh4+–) 32.Bb4 (32.Qh4!? Kf8+–) 32...Ke8 33.Ba5 (33.Qh4 h6+–) 33...Rd7 34.Bc2 (34.Qh4 h5+–) 34...Rc8 35.Nd3 Ke7 (35...f6 36.Qh4 Rf7 37.Qh7+–) 36.Ba4 (36.Ba4 h6 37.Nb4+–) 1–0. Schiffler – Hunger, corr, 1950.

4.e3 g6?? 5.Bh8+– Nf6 (5...f6 6.a4+–) 6.Be2 (6.Be2 e6 7.a3+–) 1–0. Trkn – Frido, itsyourturn.com, 2000.

3.Nf3 c5

4.Nc3 cb4 5.Nd5+= e6 6.Nb4+/– Ngf6 7.Nd3 Be7 8.g3 0–0 9.Bg2 Rb8 10.Rb1 b6 11.0–0 Bb7 12.c3 Be4 13.Nfe1 Bg2 14.Ng2 Qc7 15.f3 e5 16.Nf2 Bc5 17.d4+= ed4 18.cd4+/– Bd6 19.e4 Be7 20.Nf4 g5 21.Ne2 h5 22.Qd2 Nh7 23.e5 f6? 24.Rbc1 h4?? 25.Rc7 Rfd8 26.Ng4 fe5 27.Nh6 Kg7 28.Nf5 Kf8 29.Ne7 (29...Ke7 30.de5+–) 1–0. janbs – DanielP4R, ChessWorld.net, 2004.

4.Nc3 Ngf6 5.bc5 e5 6.d4 ed4 7.Qd4 Bc5 8.Qh4 Qb6 =+.

4.Nc3 Ngf6 5.bc5 e5 6.d4 ed4 7.Nd4 Bc5 8.e3 =.

4.bc5 Nc5 5.a4 Bf5 6.e3 a6 7.Be2 Nf6 8.0–0 e6 9.d3 Bd6 10.Nbd2 Qc7 11.Bd4 Ncd7 12.Bb2 Rc8 (12...0–0 13.c4=) 13.c4 Ng4 (13...0–0 14.cd5 ed5 15.Rc1=) 14.h3 (14.cd5 Bh2 15.Kh1 A) 15...ed5? 16.Rc1 (16.Bg7?! Rg8 17.Bd4 Be5=) 16...Nc5 17.d4+–; B) 15...Nc5+/–) 14...Nge5 (14...Nh2 15.Nh2 (15.Bg7 Rg8 16.Nh2 Bh2 17.Kh1 Rg7–/+) 15...Bh2 16.Kh1=) 15.Ne5 (15.cd5 Nd3 16.Bg7 Rg8 17.de6 N7c5+=) 15...Ne5 16.Qb3 (16.c5 Be7 17.Be5 Qe5 18.d4=) 16...Qd7 (better is 16...dc4!? 17.dc4 0–0=) 17.cd5+/– ed5 18.f4 (18.Qd5?! Nd3 19.Qd4 Bf8=) 18...Nc6 19.g4 (19.Qd5 Nb4 20.Qd4 Bf8 21.Qe5 Kd8+/–) 19...Qe7+= 20.Rf3 Bd7 (better is 20...Bc5 21.Nf1 Bd7 22.Bg7 Rg8+=) 21.Bf1 (21.Qd5!? Be6 22.Qh5+/–) 21...0–0 (21...Bc5!? 22.Ba3 h5+=) 22.Qd5+= (22.Qb7 Rb8 23.Bf6 gf6 (23...Qf6?! 24.Qd7 Qa1 25.Qc6–+) 24.Qa6 Nb4–+) 22...Be6 23.Qe4 f5 (23...Qd7 24.Rc1=) 24.gf5+= Bf5 (better is 24...Rf5!? 25.h4 Rc5+/–) 25.Qe7+/– Be7 26.Rg3 Bg6 27.Ba3 Nb4 28.Nc4 Rfe8 29.Bb2 Bf8 30.Ne5 Bf5 (30...Rc2 31.Rb1+/–) 31.e4+– Be6 32.d4 Rc2 33.Bc3 Na2 34.Be1 Rd8 35.Bd3 Rc1 36.Rc1 Nc1 37.d5 Bc8?! (37...Nd3 38.Rd3 Bc8+–) 38.Bc4 b5 (38...Bd6 39.Bd2 Bd7 40.Bc1 Ba4 41.Bb3+–) 39.ab5 ab5 40.Bb5 Bb7 41.Rc3 (41.Bc4!? Rc8 42.Kg2 Rc4 43.Nc4 Ne2+–) 41...Rc8 42.Bc4 Bb4 (42...Rc4 43.Rc4 Ne2 44.Kh2 Nf4+–) 43.Rc1 (43.Rc1 Bd6 44.Nd3+–) 1–0. Krivoshapko,Alexander – Talaber,Istvan (2055), Harkany Tenkes Cup, 1998.

4.bc5 Nc5 5.e3 Nf6 (5...e6 6.Ne5=) 6.Bb5 (6.Bd4 e6=) 6...Bd7 7.a4 (7.Be2 e6=) 7...a6 (7...e6 8.0–0=) 8.Bd7 Ncd7 9.Nc3 e6 (9...e5 10.Rb1=) 10.0–0 Bd6 11.Re1 0–0 12.e4 de4 13.Ne4 Ne4 14.Re4 Nf6 15.Rh4 Rc8 16.Rb1 Be7 (16...Nd5 17.d3=) 17.c4 Qc7 (17...Qd3 18.Bd4 Rc7 19.Ne5=) 18.Qc2 h6 19.Be5 Qd7 20.Rh3 (20.Qb3 b6=) 20...Rfd8 21.d4 Qc6 22.Nd2 (22.Rc1 Nd7=) 22...Nd7 23.Bf4 (23.Rc3 Ne5 24.de5 Rd7+=) 23...Nb6 24.Bh6 gh6 25.Rh6 f5?? (better is 25...Bg5 26.Qh7 Kf8–/+) 26.Qc3+/– Kf7 (26...Bf8!? 27.d5! Bg7 28.Rh8 Kh8 29.Qh3 Kg8 30.dc6 Rc6+–) 27.d5!+– Nd5 (27...ed5 28.Rc6 Pinning (28.Rc6 Deflection)) 28.Rh7 Ke8 29.Qg7 Rc7 30.Qf7 (better is 30.Nf3!? Qc4 31.Qf7 Kd7 32.Ne5 Kd6 33.Nc4 Rc4+–) 30...Kd7 31.cd5 Qd6 32.Nf1 ed5 (32...Kc8 33.Qe6 Qe6 34.de6+–) 33.Re1 (better is 33.Qf5!? Qe6 34.Ng3 Qf5 35.Nf5 Re8+–) 33...Re8 34.Ng3 (better is 34.Rd1!? Rc5 35.Ne3+–) 34...Kd8+/– 35.Nf5?? (better is 35.Qf5 Rd7 36.Qb1+/–) 35...Qb4?? (better is 35...Qe5! 36.Ne3 Bd6–/+) 36.Qd5+– Rd7 37.Qe5 Rc7 (37...Qc5 38.Qb8 Qc8 39.Qc8 Kc8 40.Ne7 Kd8+–) 38.h4 1–0. Fink,Norbert (2065) – Lichte,Sven, NRW–Liga I, 1999.

3.Nf3 e5

4.Ne5 Ne5 5.Be5 Be6 6.Nc3 (6.c3 Nf6+=) 6...f6= 7.Bf4 Bd6 8.Bd6 Qd6 9.e3 a6 (9...Ne7 10.Be2+/–) 10.Qh5 g6 11.Qh4 (11.Qf3 f5+/–) 11...Bf7 (11...Bf5 12.Bd3 Bd3 13.cd3+/–) 12.Bd3 (better is 12.b5+/–) 12...b5 (better is 12...Ne7!?+/–) 13.a4+– Rb8 (13...ba4 14.Ra4 Ne7 15.0–0+–) 14.ab5 ab5 15.Nb5 Qe5 16.Ra7 Kd8 17.Nc7 Ne7 18.Na6 Qa1 19.Ke2 Qh1 20.Qf6 Re8 21.Qd6 (21...Kc8 22.Qb8#) 1–0. pierre (2130) – rla, internet, 2007.

4.Ne5 Ne5 5.Be5 f6 6.Bc3 d4 7.Bb2 Bb4 8.e3 Bc5?? (9.Qh5 g6 10.Qc5 de3 11.Qe3 Qe7+–; better is 8...de3 9.Qh5 Ke7 10.fe3 Bd6+=) +–. Woschkat,Karl_Heinz (2140) – Davidson,Allan D, EM/J50/P063 ICCF Email, 2001.

4.Ne5 Ne5 5.Be5 f6 6.Bd4 Bb4 =.

4.Ne5 f6 5.Nd7 Bd7 6.e3 Bb4 7.Qh5 g6 8.Qd5 c6 9.Qf3 h5 (better is 9...Be6!?+/–) 10.Qe4+– Qe7 11.Qg6 Kd8 12.Nc3 Ba3?? (12...Be6+–) 13.Ba3 Qa3 (13...Qh7 14.Qg3+–) 14.Qg7 Qb2 (14...Rh6 15.Qg8 Be8 16.Qg7+–) 15.Rb1 Qc2 16.Rb7 Qf5 17.Ne4 Bc8 (17...Rh7 18.Qg8 Ke7 19.Qh7 Qh7 20.Rd7 Kd7 21.Nf6 Ke7 22.Nh7 Rb8+–) 18.Qf8 1–0. michaelbuss – Chess Surgeon, ChessWorld.net, 2006.

3.Nf3 e6

4.a3 a5 5.ba5 Ngf6 6.e3 Bd6 +=.

4.a3 Ngf6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7).

4.b5 b6 5.a4 Ngf6 6.e3 Be7 7.g3 0–0 8.Bg2 Re8 9.Nd4 Bb7 10.f4 Qc8 11.0–0 Bc5 12.Nf3 Be7 13.Na3 c6 14.c4 c5 15.Rc1 Rd8 16.Qe2 a6 17.d4 a5 18.cd5 ed5 19.dc5 bc5 20.Nd4 c4 21.Nf5 Re8 22.Ne7 Re7 23.Bd4 Rb8 24.Qb2 Ba6 25.Bh3 Ne8? 26.Qc3 Bb7 27.Qa5 Ra8 28.Qb4 Kf8? 29.a5 Rb8 30.Bd7 Qd7 31.Bc5 Nf6 32.Be7 Qe7 33.Qe7 Ke7 34.Nc2 Ne4 35.Nd4 Kd6 36.Rc2 Kc5 37.Rb1 Bc8 38.b6 Ba6 39.Nb3 Kd6 40.Nd2 Nc5 41.e4 de4?! 42.Nc4 Ke6 43.f5 Kf6 44.Re1 Kf5 45.Nd6 Kf6 46.Rc5 (46…Ke7 47.Ne4+–) 1–0. Schneider,Helmut – Taepper,Peter, KnockOut–Tournament, 1999.

4.c3 c5 5.Qa4 c4 6.d3= cd3 7.e3 Bd6 8.c4+= dc4 9.Bg7+– Nh6? 10.Bh8 Ke7 11.Bc3 Nb6 12.Qb5 Nd5 13.Qc4 Bd7 14.Qh4 Ke8 15.Qh6 Nb4 16.Nd4 Nc2 17.Nc2 dc2 18.Nd2 Rc8 19.Qh7 Rc3 20.Qh8 Ke7 (21.Qc3 Ba4+–). nitousche – DanielP4R, ChessWorld.net, 2004.

4.Nc3 Ngf6 (4...a6 5.e4 de4 6.Ne4 Ngf6=) 5.a3 a5 6.b5 Bd6 +=.

4.e3 b6 5.Bb5 a6 6.Bc6 Rb8 +=.

4.e3 b6 5.Bb5 Bb4?? 6.Bg7 a6 7.Be2 +– (7.Bh8?! ab5 8.Nd4 Qg5+–).

4.e3 b6 5.Bb5 Bb7 (5...Bb4?? 6.Bg7 a6 7.Be2+– (7.Bh8?! ab5 8.Nd4 Qg5+–)) 6.Ne5 Ngf6 7.0–0 Rc8 (better is 7...a6!? 8.Bc6 Qc8=) 8.Bc6+/– Rb8 9.Qf3 Bb4? (better is 9...Bc8+/–) 10.Bd7+– Kf8 11.Nc6 Bc6 12.Bc6 Ne4 13.Qg4 (13.d3 Nf6+–) 13...Rg8 (13...Qg5 14.Qe2+–) 14.f3 Nd2 (14...h5 15.Qh5 Nd2 16.Nd2 Qd6+–) 15.Qb4 Qd6 16.Qd6 (16.Qd6 cd6 17.Nd2+–) 1–0. Fournier,Frederic (2365) – alejohurtado12 (1735), Active, 2008.

4.e3 b6 5.c4 Bb7 6.Be2 c6 7.0–0 dc4= 8.Bc4 b5 9.Bb3 h6 10.a3 Ngf6 11.d4 g6 12.Nbd2 Bg7 13.Qc2+/– a5 14.Rac1 Qc7 15.Nh4 a4 16.Ba2+= g5 17.Nhf3+/– 0–0 18.e4 Rac8 19.d5 ed5+= 20.ed5 c5 21.bc5+= Bd5 22.Bb1?? Qc5=+ 23.Qf5 Qd6?? 24.Rfd1?? Bf3 25.Nf3=+ Qe7?? 26.Bf6+– Nf6 27.Rc8 Rc8 28.Qc8 (28...Bf8 29.Bd3+–) 1–0. pumpkin (2230) – beammeupscotty (2180), net–chess.com, 2005.

4.e3 f5 5.c4 c6 (5...Ndf6 6.Qa4 Qd7 7.Qb3+=) 6.Qc2 Ndf6 (6...dc4 7.Qc4 Nb8 8.Na3+=) 7.a3 Prevents intrusion on b4 (7.c5 Nd7+=) 7...Bd6 (7...dc4 8.Bc4 Bd7 9.Qb3+=) 8.Be2 (8.c5 Bb8+=) 8...Nh6 (8...dc4 9.Bc4 Qe7 10.Qc3=) 9.d3 Covers e4 (9.c5 Bb8+=) 9...Qe7 10.Nbd2 e5 11.e4 (11.Ng5 f4 12.ef4 ef4+=) 11...fe4 (11...de4 12.de4 Ne4 13.c5 Nd2 14.cd6 Nf3 15.Bf3 Qd6 16.Rd1+=) 12.de4 d4 Black has a new protected passed pawn: d4 (12...de4 13.Ng1+= (worse is 13.Ne4 Ne4 14.c5 Nc5 15.bc5 Bc5–/+)) 13.c5 White threatens to win material: c5xd6 13...Bc7 14.Bc4 White traps the enemy king in the center 14...Nh5 15.g3 Controls f4 (15.h3 Nf4 16.Bf1 Ng8=) 15...Rf8 (15...Bh3 16.Ba2+=) 16.Be2 (16.h3 g5=) 16...g6 17.h3 Consolidates g4 (17.Bc1 Bh3+=) 17...Bd7 (17...Ng7 18.Rc1=) 18.Nb3 The knight intends Nd2–b3–c1–d3 (18.a4 Nf7=) 18...Rd8 (18...Ng8 19.a4=) 19.Nc1 (19.Bc1 Qg7+=) 19...Nf7 (19...Kf7 20.Na2=) 20.Nd3 Blocks the pawn on d4 (20.h4!?+=) 20...Nf6= Black threatens to win material: Nf6xe4 21.0–0–0?? (21.Nc1 Nh5=) 21...Be6?? gives the opponent counterplay (21...Ne4 22.Rh2–+) 22.Rde1? (22.Nde1 a5–/+) 22...Nd7?? gives the opponent new chances (better is 22...Ne4 Black had this great chance 23.Rhg1 a5–+) 23.Nd2+= a5 (23...Nh8 24.Qa4 Bb8 25.Kb1=) 24.f4= ab4 (24...Nf6 25.Bd1=) 25.ab4 Nh6 (25...Ra8 26.fe5 Nfe5 27.Nf4=) 26.f5 (better is 26.Ref1!?+= and White hangs on) 26...gf5–/+ 27.Bh5 Bf7 28.Bf7 Kf7 (28...Nf7 29.ef5 Rg8 30.Rhg1+=; 28...Qf7 Instead of 29.Bd4 Qe7 30.Bc3=) 29.ef5 Qg5 (29...Nf5!? 30.Ne5 Ne5 31.Qf5 Kg8 32.Qg4 Qg7 33.Qg7 Kg7=) 30.g4 White has a new protected passed pawn: f5 (30.Qc4 Kg7 31.Nf4 ef4 32.Bd4 Ne5+/–) 30...Rfe8 (30...Kg8 31.Qc4 Kh8 32.Kd1+=) 31.Kb1 (better is 31.Nf2 Kf8 32.h4+=) 31...Nf6?? (better is 31...Kg8+= is the best chance) 32.Nf3+– Qg7 33.g5 (33.g5 Kf8 34.gh6+– (worse is 34.gf6 Qf6 35.Rhg1 Nf5+–)) 1–0. Ovejero,Juan Manuel (2265) – Aguilar,Mauricio, ARG–ch U18 sf, 2002. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nd7)

4.e3 h6 5.c4 c6 6.a3 Ngf6 7.Nc3 g6 8.e4 dc4 9.Bc4 b5 10.Bb3 Bg7 11.0–0 Bb7 12.Re1 0–0 13.d3 a5 14.d4 ab4 15.ab4 Ra1 16.Qa1 g5 17.h3 Nh5 18.Ne2 Qc7 19.e5 Ra8 20.Qc1 Bh8 21.g4 Ng7+= 22.h4 gh4 23.Qh6+/– c5 24.Ng5 Nf8 25.Bc2 Ng6 26.Bg6 fg6 27.Qh7 (27...Kf8 28.Qh8 Ke7 29.Qg7 Ke8 30.Qc7+–) 1–0. wlittle (2180) – beammeupscotty (2140), net–chess.com, 2004.

4.h3 Bb4?? 5.Bg7 Ngf6 6.Bh8 +–.

4.h3 Ngf6 5.a3 Be7 6.e3 0–0 7.Be2 c5 8.b5 b6 9.0–0 Bb7 10.c4 Qc7 11.cd5 ed5 12.d4 c4=+ 13.Nc3 Rfe8 14.Ne5 Ne5–/+ 15.de5 Qe5 16.Rb1 Bd6–+ 17.f4?? Qe3 18.Rf2 Bf4 19.Na4 Bg3 (20.Kh1 Qf2–+) 0–1. licky1 – ysw3, caissa.com, 2006.

4.e3 Bb4??

5.Bg7 Be7 6.Bh8 Bf6 (6...Ngf6 7.Be2+–) 7.Bf6 Ngf6 8.c4 dc4 9.Bc4 Nb6 10.0–0 (10.d4 Nc4 11.Qa4 Bd7 12.Qc4 Bc6+–) 10...Nc4 11.Qc2 (better is 11.Qa4 Bd7 12.Qc4+–) 11...Nd6 12.Ng5 (12.d4 Bd7+–) 12...h6 (12...e5 13.Nh7 Ng4 14.Qc3+–) 13.Nh7 (13.Nf3 b6+–) 13...Nh7 (13...c5 14.Nf6 Qf6 15.Nc3+–) 14.Qh7 Qf6 15.Qg8 (15.d4 c5+–) 15...Kd7 16.Nc3 Qg6 (16...b6 17.d4+–) 17.Qh8 (17.Qg6 fg6 18.d4 b6+–) 17...f5? (17...b6!? 18.Qd4 Bb7+/–) 18.Qd4 (18.Ne2 Ne4+–) 18...b6 19.Qa4 c6 (19...Kd8 20.d4+–) 20.Rfc1 (20.d4 Bb7+–) 20...Bb7 21.d4 a6 (21...b5 22.Qc2 c5+–) 22.Ne2 b5 (22...Rg8 23.Nf4 Qf7 24.Qb3+–) 23.Qc2 (23.Qb3 Qf6+–) 23...c5 (23...Nc4 24.Nf4 Qg4 25.Nd3+–) 24.f3 (better is 24.Nf4!? Qg5 25.dc5 Nc4+–) 24...c4 (better is 24...Bf3 25.Nf4 Qg5+–) 25.Nc3?? (25.Kh1 Rc8+–) 25...Rg8? (better is 25...Bf3 26.Qf2 Bc6+=) 26.e4?? (better is 26.Kh1+–) 26...fe4–/+ 27.fe4 Ne4 (27...Be4?! 28.Ne4 Ne4 29.Rab1+=) 28.g3 Qg4 (better is 28...Ng5–/+) 29.Rf1?? (29.Ne4 Qe4 30.Qe4 Be4+=) 29...Nc3 (29...Ng3 30.Qh7 Kd6 31.Nb5 ab5–+) 30.Qc3–/+ Qe4 The mate threat is Qg2 31.Rf7 Kd6?? (better is 31...Kc8 32.Rb7 Qb7+=) 32.Qa3 (32.Qb4 Kd5 33.Qc5) 32...Kc6 (32...b4 33.Qb4 Kd5 34.Qc5) 33.Qc5 1–0. gtate (2055) – mgomdysey (2210), net–chess.com, 2006.

5.Bg7 f6 6.Bh8 Qe7 7.Bb5 c6 8.Ba4 Nh6 9.Nd4 Ne5 (9...Qf7 10.Qf3+–) 10.Qh5 Qf7 (10...Nhf7+–) 11.Qh6 1–0. marus1 – shahsrook, internet, 2001.

5.Bg7 Ngf6 6.Bh8 Kf8 7.a3 +–.

4.e3 Ngf6

5.a3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3).

5.a3 c5 6.bc5 Bc5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3 Nbd7).

5.a3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7).

5.a3 Be7 6.c4 0–0 7.Nc3 c6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.c4 c6 7.Nc3 Nbd7).

5.b5 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Nbd7 8.Nf3).

5.b5 Bd6 6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3).

5.b5 Bd6 6.d4 c5 7.dc5 Nc5 8.Be2 0–0 9.Nbd2 (9.0–0 b6=) 9...Na4=+ 10.Bd4 Bb4 (10...Ne4!?–/+) 11.c4= Nc3 12.Bc3 Bc3 13.Rc1 Ne4 14.0–0 Qa5 15.Nb1 Rd8 16.Qc2 Bf6 17.Bd3 Bd7 18.Be4 de4 19.Nfd2 Rac8 20.Qb3 Be7 21.Ne4 a6 22.a4 f5 23.Ned2 Bc5 24.Nf3 Qc7 25.Nc3 Be8 26.Ne2 Bh5 27.Nfd4 Rd6 28.Qb2 Rcd8 29.Nb3 Bf7 (29...Be2 30.Qe2 R6d7 31.Rfd1+/–) 30.Ned4 a5 (30...R6d7 31.Nc5 Qc5 32.ba6 ba6 33.Nf3+/–) 31.Nc6 Be3 (31...bc6 32.Nc5 Rd2 33.Qc3+–) 32.fe3+– (32.Nd8?! Bc1 33.Qc1 Rd8+=) 32...bc6 33.b6! Qe7 (33...Qb6 34.c5) 34.c5 Rd5 35.Na5 Rd2 36.Qe5 (36.Nc6?? Qg5 (36...Rb2? 37.Ne7 Kf8 38.Nf5 ef5 39.Rf2 Rf2 40.Kf2+–) 37.Rf2 Rb2 38.Nd8 Qe3–+) 36...Qg5 37.Qg3 Qg3 38.hg3 Be8 39.Nc4 Ra2 40.Ra1 Rc2 41.Rfc1 (41...Rc1 42.Rc1+–) 1–0. Myrberg,Johnny – Malmstroem,Jan, TKM/SF/02, 2001.

5.b5 Bd6 6.d4 c5 7.dc5 Nc5 8.Be2 Qc7 (8...a6 9.c4=) 9.Nbd2 e5 10.h3 (10.c4 e4 11.Nd4 Bg4=) 10...Be6 (10...Na4 11.Rb1+=) 11.0–0 (11.c4+=) 11...0–0–0 (better is 11...Na4!? 12.Rb1 Nb2 13.Rb2 Rc8+=) 12.c4+= Na4?? (better is 12...b6+=) 13.Qa4+– h6 (13...Kb8 14.Rac1 dc4 15.Bc4 Bc8+–) 14.cd5 Bd5 (14...e4 15.Rfc1 ef3 16.Rc7 Bc7 17.Bf3 Nd5 18.Qa7+–) 15.Rfc1 Bc5 16.Be5 Qb6 17.Bd4 Nd7 18.Qb4 (18.Ne5 Qe6 19.e4 Ne5 20.Rc5 Kb8 21.Rd5 Rd5 22.Qa7 Kc7 23.Rc1 Kd8 24.ed5 Qd5 25.Be5 Qd2 26.Qb6 Ke7 27.Rc7 Ke8 28.Rc8 Ke7 29.Qc5 Ke6 30.Bc4 Qd5 31.Qd5 Kf5 32.Bd4 Kg6 33.Bd3 f5 34.Qf5) 18...a5 (18...Kb8 19.Bc5 Nc5 20.Rc5+–) 19.Rc5 (better is 19.Bc5 Nc5 (19...ab4?? 20.Bb6 Kb8 21.Bc7 Ka8 22.Bd8 Rd8 23.e4+–) 20.Rc5 Kb8+–) 19...Nc5 (19...Qc5 20.Qc5 Nc5 21.Bc5+–) 20.Qc5 Qc5 21.Bc5 Bf3 (21...Kc7 22.Nc4 Bc4 23.Bc4+–) 22.Nf3 f6 (22...Kb8 23.Bb6 Rd6 24.Ba5+–) 23.Rc1 Kb8 24.Bb6 (24.Nd4 h5+–) 24...Rc8 25.Rc8 (25.Bc4 a4+–) 25...Rc8 26.Nd4 a4 27.g3 Rc1 (27...Rc3 28.Bf3+–) 28.Kg2 Ra1 (28...Rc3 29.Bf3+–) 29.Bc4 g6 (29...Rb1 30.Be6+–) 30.Bc5 (30.Bd8 f5+–) 30...Rc1 31.Bd6 Ka7 (31...Kc8 32.Bf7 Kd7 33.Bf8+–) 32.Bf7 g5 33.Bf8 (33.Be7 a3+–) 33...Rc7 34.Bd5 (34.Bg6 Kb6+–) 34...h5 35.Bd6 (35.Nf5 g4+–) 35...Rd7 36.Bc5 Kb8 (36...b6 37.Nc6 Kb7 38.Be6+–) 37.e4 h4 (37...Rc7 38.Bd6 Kc8 39.Bc7 Kc7 40.Ne6 Kb6 41.f4 gf4 42.Nf4 Kb5 43.Nh5+–) 38.b6 Ka8 39.Nb5 (39.gh4 Rd8+–) 39...Kb8 (39...Rh7 40.Bd4 g4 41.hg4+–) 40.Nd6 Ka8 (40...hg3 41.fg3 Ka8 42.Ne8+–) 41.Nb7 (41.Ne8 Kb8+–) 41...hg3 (41...Rd5 42.ed5 Kb7 43.gh4 gh4 44.Kf3+–) 42.Kg3 f5 43.Bd6 f4 44.Kg4 Rb7 (44...Rd6 45.Nd6 Kb8 46.e5 a3 47.h4 gh4 48.e6 h3 49.e7 h2 50.e8Q) 45.Bb7 (45.h4 gh4 46.e5 h3 47.e6 h2 48.e7 h1Q 49.e8Q) 45...Kb7+– 46.Bc7 a3 47.Kg5 (47.Kg5 Kc6 48.e5+–) 1–0. Kreuzer,Uwe – Schmidt,K, Ortsmeisterschaft Nhn, 1981.

5.c4 Bb4!? 6.cd5 ed5 –/+.

5.c4 c6 6.a3= Be7 7.cd5 ed5 8.Be2 a6 9.0–0 0–0 10.d4 Re8 11.Nbd2 Bd6 12.Qc2 Qe7 13.h3 Nf8 14.Rfe1 Ng6 15.Bf1 Bd7 16.Nb3 Rad8 17.Nc5 Bc8 18.Re2 Nd7 19.Na4 Qf6 20.Rae1 Nh4 ½–½. Wiszniowski,Eugeniusz (1780) – Dembowski,Andrzej (2005), XIV Int Polish ch, 2008.

3.Nf3 f6

4.Nc3 Nb6 5.e4 d4 (5...e6!?=) 6.Nb5+= e5 (6...Bg4!? 7.Nbd4 e5+=) 7.Ne5!+/– fe5 (7...Ne7 8.Nf3+/–) 8.Qh5+– Ke7 9.Qe5 Kf7 10.Nc7 Bd6?? (better is 10...Rb8 11.Nb5 Ra8 12.Bd4 Nf6 13.Bb6 Qb6 14.Bc4 Kg6 15.Qg3 Kh6+–) 11.Qd4 Qc7 (11...Nf6 12.Bc4 Kg6 13.Na8+–) 12.Qg7 Ke8 13.Qc7 (13.Qc7 Bc7 14.Bh8+–) 1–0. pierre_d – crazy_fisk, chessmaniac.com, 2006.

4.Nc3 e6 5.a3 c5 =.

4.d4 e5 5.de5 fe5 6.a3 e4 7.Nd4 Qf6 8.e3 c5 (8...Nb6 9.Nd2+=) 9.bc5+= Bc5 10.Bc3 (10.Qh5 Qf7 11.Ne6 Qh5 12.Ng7 Ke7 13.Nh5 Ngf6+/–) 10...Ne7 (10...Bd4 11.Bd4 Qf7+=) 11.Qe2?? (11.Nb5!? d4 12.ed4+/– (worse is 12.Nd4 0–0 13.Bc4 Kh8+=)) 11...Nf5 (better is 11...0–0+=) 12.g4?? (better is 12.Nf5 Qf5 13.Bg7+/–) 12...Nd4–+ 13.Qd2?? (better is 13.Bd4 Bd4 14.ed4 Qd4 15.c3–+) 13...Nf3 14.Ke2 (14.Kd1 d4 15.Qe2 dc3 16.Qc4–+) 14...Bb4 (better is 14...d4 15.g5 Qf7 16.ed4 Nd2 17.Nd2 Be7 18.Ne4 0–0–+) 15.Bf6 Bd2 (15...Nd2 16.Bg7 Rg8 17.ab4 Nf1 18.Bd4 Nh2 19.Rh2=) 16.Bc3 (16.Bg7 Rg8 17.Nd2 Nd2 18.Kd2 Rg7 19.Be2–+) 16...Bc3 17.Nc3 Nde5 18.h3 (18.Nd5 0–0 19.Nc7 Bg4–+) 18...Be6 19.Nb5 Rc8 (better is 19...Ke7!? 20.Rb1–+) 20.Nd6 Ke7 21.Nc8 Bc8 22.Bg2 Nh4 23.Bf1 b6 24.Rg1 (24.a4 Ba6 25.Kd1 Bf1 26.Rf1 Nc4–+) 24...Ba6 25.Kd2 (25.Kd1 Nhf3 26.Rh1 Bf1 27.Rf1–+) 25...Nhf3 26.Kc3 Ng1 27.Ba6 Nh3 28.Kd4 Kd6 29.f4 ef3 30.Rb1 (30.Bb7 f2 31.Bd5 Ng1–+) 30...Rf8 (30...Ng5 31.e4–+) 31.Rb5 (31.c4 dc4 32.Bc4 f2–+) 31...Ng4 (better is 31...Nc6 32.Kc3–+) 32.Rd5 Kc6 (better is 32...Kc7 33.Rh5 Ng1 34.Rg5 Ne2 35.Kd5 Ne3 36.Ke4–+) 33.Bb5 Kb7 34.Rd7 Kc8 (better is 34...Kb8!? 35.Rg7 h5 36.Rh7–+) 35.Ra7 f2 (better is 35...Kb8 36.Rg7 h5–+) 36.Ra8+= Kc7 37.Rf8 g5?? (better is 37...Ng5 38.Rf5 h6+=) 38.Rf7+/– Kd6 39.Rh7 Ng1 40.Rg7?? (better is 40.Rf7 Nh3 41.a4+–) 40...Nf3–/+ 41.Ke4 Nd2 42.Kf5? (42.Kd4 Ne5–/+) 42...Ne3?? (better is 42...Nc4! 43.Bc4 Ne3 44.Kg5 Nc4–+) 43.Kg5+= Ndc4 (better is 43...Kc5 44.Bd3 f1Q 45.Bf1 Nef1 46.Rc7 Kb5–/+) 44.Bc4?? (better is 44.Rf7 Na3 45.Be2+=) 44...Nc4–+ 45.Rg6 Ke5 46.Rf6 Nd6?? (46...Nd2 47.Rf5 Kd4 48.Rf2 Ne4 49.Kf5 Nf2 50.Ke6–+) 47.Rf2?? (better is 47.Rf3+=) 47...Ne4–+ 48.Kh5 (48.Kg4 Nf2 49.Kf3 Nd1–+) 48...Nf2 49.c4 (49.Kg6 Nd1 50.Kf7 b5–+) 49...Nd3 50.Kg4 Kd4 51.Kf3 Kc4 52.Ke3 b5 53.Kd2 Nc5 (better is 53...Kb3–+) 54.Kc2 Na4 55.Kb1 Kb3 56.Kc1 Ka3 57.Kb1 b4 58.Ka1 b3 59.Kb1 b2 60.Kc2 Ka2 0–1. Gregor123 – Master1, mySchach.de, 2004.

4.d4 e6 5.a3 Ne7 6.Nbd2 Nb6 7.c4 (7.e4 Na4 8.Rb1 a5+=) 7...c6 (better is 7...Nc4!? 8.Nc4 dc4+=) 8.e4 Qc7 (8...Ng6 9.Bc1+=) 9.Rc1 (9.ed5 cd5 10.c5 Nd7+/–) 9...g6 10.Bd3 Bh6 11.c5 Nd7 12.0–0 0–0 13.Qe2 White prepares e5 13...Rf7 14.Rce1 White plans e5 14...Nf8 (14...b5 15.Bc1+/–) 15.Bc1 b5 16.e5 f5 17.Nb3 Bc1 (17...f4 18.Qa2+/–) 18.Rc1+– h6 19.Qd2 Rh7 20.h4 (20.Ra1 Ba6+–) 20...a6 21.Nh2 Qd8 22.Rc3 Qe8 23.Na5 Ra7 24.f4 (24.a4 Nd7+/–) 24...Kh8 25.g4 (25.a4 Nd7+/–) 25...Ng8 (25...Nd7 26.a4+=) 26.Bb1 h5 (26...Raf7 27.Rg3+=) 27.gf5 (27.g5 Rhf7+/–) 27...gf5+= 28.Nf3 Nh6 29.Ng5 Rhg7 30.Bc2 Ng4 31.a4 Nh7 (31...Rg8 32.Rg3+=) 32.Nb3 (32.Rg3 Rg6+/–) 32...Nf8 33.Ra1 Ng6 34.Bd1 Rgb7 35.Na5 Rc7 36.Rh3 (better is 36.Kf1+/–) 36...Qd8?? (36...Rg7 37.Rg3+=) 37.Kg2?? (37.Nc6 Rc6 38.ab5 Rb6 39.cb6 Qb6+–) 37...Kg7?? (37...Qe8 38.Bc2+=) 38.Kg3?? (38.Nc6 Rc6 39.ab5 Rb6 40.cb6 Qb6+–) 38...Kh6? (38...Qe8 39.Bf3+=) 39.Rh1?? (better is 39.Nc6 Rc6 40.ab5+–) 39...Qd7 (39...Qe8 40.Rg1+/–) 40.Be2 (40.Bg4 hg4 41.h5 Nf8+/–) 40...Qe7 (40...Qe8 41.Rhg1+/–) 41.Ra3 Bd7 42.Rha1 Be8 43.Qa2 Nh8 (better is 43...Rc8!?+/–) 44.Nc6!+– Bc6 (44...Rc6 Decoy to c6 45.ab5) 45.ab5 Bb5 (45...Rab7 46.Ra6 Bd7 47.Bg4 hg4 48.Qd5 Ng6+–) 46.Bb5 Rab7 (46...Nf7 47.Ra6 Ra6 48.Qa6 Ng5 49.fg5 Kg6+–) 47.Ra5 (47.Ra5 ab5 48.Ra8+=; better is 47.Ra6 Rb5 48.Re6 Ng6 49.Re7 Re7 50.Qd5 Rb4 51.Ra6+–) 1–0. Janosevic,D – NN, Stuttgart, 1957 (blind).

4.d4 e6 5.e3 Bb4+= 6.c3 Bd6 7.c4 dc4 8.Bc4 Nb6 9.Bd3 Nh6 10.Nc3 0–0 11.0–0 Nf7 12.Qc2 f5 13.Rae1 Nd5 14.Bf5 ef5 15.Nd5 Ng5 (better is 15...Bh2 16.Kh2 Qd5+=) 16.Ng5+/– Qg5 17.Nc7 Bd7?? Black intends f4 (better is 17...Qh6 18.h3 Bc7 19.Qc7 Be6+=) 18.Qb3+– Kh8 19.Na8 Bc6 (19...Ra8 20.Qb7 Rd8+–) 20.d5 f4 (20...Qh6 21.h3 Ra8 22.dc6 bc6 23.Rd1+–) 21.dc6 f3 22.g3 Qh5 (22...bc6 23.Rd1 Be5 24.Qa3 Ra8 25.Qc5+–) 23.Qb7 (23.cb7?? Qh3 24.Qg8 Kg8 25.b8Q Qg2) 23...Rg8 24.c7 (24.Qa7?? Qh3 25.Qg7 Rg7 26.Bg7 Kg7 27.Rc1 Qg2) 24...h6 25.c8Q Rc8 26.Qg7 1–0. Fournier,Frederic (1860) – Ferrose2009, Active, 2007.

4.e3 e5 (--> 3.e3 e5 4.Nf3 f6).

4.e3 e5 5.b5 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 f6).

3.Nf3 Ngf6

4.a3 a5 5.ba5 e6 6.e3 Ra5 +=.

4.a3 a6 5.e3 e6 6.d4 Bd6 =.

4.a3 c5 5.bc5 Nc5 6.d4? (6.e3!?=) 6...Nce4 7.c3? (better is 7.Ne5–/+) 7...Ng4–+ 8.Qc2 Nef2 9.Rg1 Ne3 10.Qb3 Ne4 (10...Nfd1!? 11.Nbd2 Nb2 12.Qb2–+) 11.Nbd2 e6 (11...Nf1?! 12.Rf1 Nd2 13.Kd2–/+) 12.g3 Nf1 13.Kf1 Qf6 14.Kg2 Bd6 15.Ne4 de4 16.Nd2 e3 (better is 16...b6 17.c4 Qf5=) 17.Nf1?? (better is 17.Ne4 Qe7 18.c4=) 17...Qf2–+ 18.Kh3?? (better is 18.Kh1 Qe2 19.Rg2–+) 18...e5 19.Kh4 (19.g4 h5 20.Qb5 Kf8 21.Qe8 Ke8 22.Ne3 hg4) 19...Be7 0–1. von Rosenberg,Clemens – Butcher Sr,Robert Evan, IECC, 2013.

4.a3 c6 5.e3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7 5.a3).

4.a3 c6 5.e3 e6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3 c6).

4.a3 e5 5.e3 Be7 6.Ne5+= Ne5 7.Be5 0–0 8.c4 dc4 9.Bc4 Bd7 10.Nc3 a6 11.d4 b5 12.Bd3 Rc8 13.0–0 Be6 14.Qb1 h6 15.Ne4 (15.Bf6 Bf6 16.a4 c6+–) 15...Ne4+/– 16.Be4 Bf6 17.Bf6 Qf6 18.Bb7 Rb8 19.Ba6?? (better is 19.Qe4!?+–) 19...Bc4 20.Rc1 (better is 20.Bb5 Bb5 21.Rc1+=) 20...Qa6–/+ 21.Qc2 c6 22.a4 Qc8 23.a5 Ra8 24.f3 Qe6 25.e4 g6 26.Re1 Qd6 27.Qc3 Kh7 28.Rad1 Qf4 29.d5 cd5–/+ 30.ed5 Rfd8 31.Re4 Qc7 32.Qf6 Rd6 33.Qe7? Qe7–+ 34.Re7 Kg7 35.Re4 Rd5 36.Rd5 Bd5 37.Re5 Bc4 38.Rc5 Ra7 39.Kf2 Kf6 40.Ke3 Ke6 41.Kd4? Kd6 42.Ke4? f5 43.Kd4 Bf1 44.g3 Bc4 45.f4 Re7 46.Re5 Re5 47.fe5 Kc6 48.e6? Be6 49.Ke5 Bd7 50.Kf6 Be8 51.h4 Kd5 52.a6 Kc4 53.a7 Bc6 54.Kg6 Be4 55.Kh6= Kb4 56.Kg5 Kc3?? 57.h5+– b4 58.h6 b3 59.h7 b2 60.h8Q Kc2 61.Qc8 Kb3 62.Qb8 Kc2 63.Qc7 Kb3 64.Qb6 Kc2 65.Qb5 b1Q 66.Qb1 Kb1 67.g4 fg4+/– 68.Kg4 Ba8 69.Kf4 Kb2 70.Ke5 Ka3 71.Kd6 Kb4 72.Kc7 Ka5 73.Kb8 Bh1 74.a8Q Ba8 ½–½. Fournier,Frederic – guest3084, Active (5/0), 2005.

4.a3 e6 5.e3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7).

4.a3 g6 5.d3 Bg7 6.e3 0–0 7.Be2 a5 8.0–0 c6 9.Nbd2 Qc7 10.c4 e5 11.Qb3 b6 12.Rfc1 a4 13.Qa2 Qd6 14.cd5 cd5 15.d4 Ne4 (15...e4 16.Ne5+=) 16.Ne4+/– de4 17.Ng5 (17.Nd2!? Bb7 18.Nc4+/–) 17...Bb7= (worse is 17...ed4 18.Ne4 Qe7 19.Bd4 Bd4 20.ed4+/–) 18.Bc4 Qf6 (18...ed4? 19.Nf7 (19.Bf7?! Kh8+/–) 19...Qe7 20.Nd8 Kh8 21.Ne6+– (21.Nb7?! Ra7+–)) 19.Nf7 Rf7 20.Bf7 (20.Bf7 Qf7 21.Qf7 Kf7 22.Rc7+–) 1–0. pcmvr – wvmaniac (2600), net–chess.com, 2016.

4.a3 g6 5.e3 Bg7 6.c4 dc4 7.Bc4 Nb6 8.Be2 Bg4 9.d4 0–0 10.0–0 Nbd5 11.Nc3 c6 12.Nd5 cd5 13.Rc1 Rc8 14.Qd2 Ne4 15.Qd3 Qd7 16.Rc8 Rc8 17.Rc1 Rc1 18.Bc1 Qc7 19.Bb2 Nd6 20.Nd2?? (better is 20.Qb3=) 20...Be2–+ 21.Qe2 a6 (better is 21...Qc2–+) 22.Qd3= Nb5 23.g3 e6 24.Nb3 b6 25.Qd2 Nd6 26.Qc1 Nc4 27.Nd2 b5 28.Kg2 e5 29.de5 Be5 30.Be5?? (30.Nc4 dc4 31.Bd4 c3 32.Be5 Qe5+=) 30...Qe5 (better is 30...Ne3 31.fe3 Qc1–+) 31.Nf3 Qe4 32.Qc3 Nd6 (better is 32...g5 33.h3 h5+=) 33.Qc6+= Nf5 (33...Nc4 34.Qa6 g5 35.h3=) 34.Qa8 (34.Qa6!? Qc4 35.Qa8 Kg7 36.Qe8+–) 34...Kg7+= 35.Qa6 g5 36.h3 h5 37.Qb5 g4 38.hg4 hg4 39.Qe2 gf3 (39...d4 40.b5 de3–/+ (40...Qf3 41.Qf3 gf3 42.Kf3+=; worse is 40...gf3 41.Qf3 Qe5 42.ed4 Qb5 43.Qe4=)) 40.Qf3+= Qf3 (40...Nd6 41.Qe4 de4 42.a4+=) 41.Kf3+/– Ne7 42.Kf4 Kf6 43.g4 Ng6 44.Kg3 Ne5 45.f4 (45.a4 Ke6+=) 45...Nd3 (45...Nc4 46.a4=) 46.Kf3 (46.b5 Nc5+=) 46...Ne1 (46...Ke6 47.g5=) 47.Kf2 (better is 47.Ke2!? Nc2 48.b5+/–) 47...Nd3= 48.Ke2 Nc1?? (better is 48...Nb2+=) 49.Kd2+– Nb3 (49...Na2+–) 50.Kc3 (50.Kc3 Nc1 51.g5 Kf5 52.Kd2 Nb3 53.Kc2+–) 1–0. Fournier,Frederic – RogerC, Partie amicale, 5m + 0s, 2007.

4.b5 c6 5.a4 (5.bc6 bc6 6.Bd4 c5 7.Bf6 Nf6=+) 5...e6 6.e3 (6.bc6 bc6 7.Ne5 Ne5 8.Be5 Nd7=+) 6...Be7 (6...Bd6 7.bc6 bc6 8.Nd4=+) 7.c4 (7.bc6 bc6 8.Be2 Rb8=+) 7...dc4 (7...0–0 8.bc6 bc6 9.Ne5 Ne5 10.Be5=+) 8.Bc4 0–0 (8...cb5 9.ab5 Nb6 10.Be2=) 9.0–0 (9.bc6 bc6 10.d4 Rb8=) 9...Nb6 10.Bb3 (10.Be2 cb5 11.ab5 a6=) 10...cb5=+ 11.ab5 Bd7 (11...Qd3 12.Ba3 Ba3 13.Na3=) 12.Nc3= Nbd5 (12...a6 13.ba6 ba6 14.d3=) 13.Nd5 Nd5 14.Ba4 (14.Nd4 a6=) 14...Bf6 (14...a6 15.Qe2=) 15.d4 a6 (15...Rc8 16.Ne5 Be5 17.de5+=) 16.Ne5 ab5 17.Nd7 Qd7=+ 18.Bb3 Ra1 19.Qa1 h6 20.Rd1 Qc6 21.Rc1 Qb6 22.Qb1 Nb4 23.Ba3+= Qa5 24.Qb2?? Be7?? 25.Ra1+= Nd3?? 26.Qa2 Ba3=+ 27.Qa3 Qc3 28.Qa2?? b4?? 29.h3? Rd8 30.Rf1 Kh8 31.Qa4 b5 32.Qa5 Rc8 33.Be6? fe6–+ 34.Qb5 b3 35.Qd7 b2 36.Qe6 Nc1 37.Kh2?? b1Q 38.Rc1 Qcc1 39.Qc8 (39...Qc8 40.g4–+). stoker – NeverWin, Caissa.com, 2004.

4.b5 e6 5.Ne5 =+.

4.d3 e6 5.b5 (5.a3 c5+=) 5...b6 (5...Bb4 6.Nbd2+=) 6.Nbd2 (6.c4 a6=) 6...Bb7 (6...a6 7.ba6 Ba6 8.e4+=) 7.g3 (7.e3 a6 8.ba6 Ra6+=) 7...Bd6 (7...a6 8.a4+=) 8.Bg2 (8.e4 de4 9.de4 e5+=) 8...0–0 (8...a6 9.c4+=) 9.0–0 (9.c4 a6+=) 9...a6 10.c4 (10.a4 e5+=) 10...dc4 (10...ab5 11.cb5 e5 12.d4=) 11.Nc4 (11.ba6 Ra6 12.Nc4 Qe7=) 11...Qe7 (11...ab5 12.Nd6 cd6 13.Qb3+=) 12.Nd6 (12.a4 ab5 13.ab5 Ra1 14.Qa1 Ra8=) 12...Qd6 (12...cd6 13.ba6 Ra6 14.Qd2+=) 13.ba6 (13.a4 ab5 14.ab5 Ra1 15.Qa1 Ra8=) 13...Ra6 14.d4 (14.Qc2 Rfa8=) 14...Rfa8+= 15.a3 b5 (15...Bd5 16.Qc2+=) 16.Qd3 (16.Bc1 b4+=) 16...Be4 17.Qd2 (17.Qb3 Bd5 18.Qd3 Ra5+=) 17...Nb6–/+ 18.Ne5 (18.Rfc1 Nc4 19.Qc3 Nd5–/+) 18...Bg2 19.Kg2 Nfd7 (19...c5 20.Rfd1 c4 21.Qc2–/+) 20.f4 (20.Nd7 Qd7 21.e4 Nc4–/+) 20...Ne5 (20...Qd5 21.Kg1–/+) 21.fe5 Qd5 22.Kg1 Nc4 23.Qc1 (23.Qf4 Qd7 24.Rab1 Ra4–/+ (24...Na3?! 25.Ba3 Ra3 26.Rb5=)) 23...Qd7 (23...Qe4 24.Rf2–+) 24.Rf3 (24.e4–/+) 24...Nb2 (better is 24...c5!?–/+) 25.Qb2+= b4 (25...Ra4!? 26.Rd3 Qd5+=) 26.Rb3= Ra3?? (26...c5 27.dc5 Qc7 28.Rb4 Qc5 29.Kg2+=) 27.Rba3 (better is 27.Raa3 ba3 28.Rb8 Qd8 29.Rd8 Rd8 30.Qa3+–) 27...ba3= 28.Qb7?? (better is 28.Ra3!? Rc8 29.Ra7=) 28...Qd8 (better is 28...Qd4 29.Kg2 Qd5 30.Qd5 ed5–+) 29.Qb4 (29.e3 h6–/+) 29...h6 (29...a2 30.Qc3–/+) 30.e3 Qf8 (30...a2 31.Qc4 Qd5 32.Qc3–/+) 31.Qc3 (31.Qc4 Qb8 32.Qc3 c5 33.Qc5 Qb2–/+) 31...a2 32.Kf2 Ra3 (32...Qa3 33.Qc2–/+) 33.Qc2 (better is 33.Qc7 Qa8 34.Qc1+=) 33...Ra5?? (33...f6 34.ef6 Qf6 35.Ke2–+) 34.Kf3?? (better is 34.Ra2 Ra2 35.Qa2+=) 34...c5 (34...Ra7 35.Kf2 Qa3 36.Kf3–/+) 35.dc5 Qc5 (35...Rc5 36.Qa2 Re5 37.Qa8–/+) 36.Qc5 Rc5 37.Ra2 Re5 38.Ra4 (38.g4 f5–/+) 38...g5 (38...f5 39.Ra7–/+) 39.h4 (39.Ra7 Kg7–/+) 39...Kg7 40.hg5 (40.e4 f5 41.ef5 Rf5 42.Ke3 h5–/+) 40...hg5 41.Ra7 (41.e4 f5 42.ef5 ef5–/+) 41...Kg6 42.Ra8 (42.e4 f5 43.ef5 Rf5 44.Kg4 Rc5–/+) 42...Kf5 (42...f5 43.Ra6–+) 43.Ra4 (better is 43.g4 Kf6 44.Rb8–/+) 43...Kg6 (43...g4 44.Ke2 Kg5 45.e4–/+) 44.Ra8–+ f5 45.Rg8 Kf6 46.Rf8 Ke7 47.Ra8 g4 48.Kf2 Rc5 (48...Re4 49.Ke2–+) 49.Ra4 (49.e4 Rc2 50.Ke1 Kf6–+) 49...Kd6 (49...Rc2 50.Kf1–+) 50.e4 Ke5 51.ef5 ef5 (51...Kf5 52.Rf4 Kg5 53.Re4–+) 52.Ke3 (52.Ra2 Rc3–/+) 52...Rc3 (52...Rc2 53.Ra5 Kf6 54.Ra6 Kg5 55.Ra8–+) 53.Kf2 Rd3 (53...Rc2 54.Ke1–+) 54.Rb4 (54.Ra5 Ke4–/+) 54...Rd4 Black plans f4 55.Rb8 Ke4 (better is 55...Rd2!? 56.Ke1 Rh2–+) 56.Re8+= Kd3 (56...Kd5 57.Rd8 Kc4 58.Rf8=) 57.Re5= f4 (57...Rc4 58.Rf5 Re4 59.Rd5 Rd4 60.Rg5=) 58.gf4 Rf4 59.Kg3 ½–½. Guerrini,Donato – Grassetto,Gilberto, Como–ch Provinciale, 2000.

4.d4 Ne4 5.a3 Nef6 =.

4.d4 Ne4 5.Nc3 Nc3 6.Bc3= Nf6 7.Qd2 (7.e3 Ne4 8.Bd2 Bg4=) 7...Ne4 8.Qd3 c6 9.Qe3 Qb6 10.0–0–0 (10.a3 Bf5=+) 10...f6 (10...e6 11.Be1–/+) 11.Nd2 (11.a3 e6 12.Be1 a5 13.ba5 Qb5=+) 11...Nc3 12.Qc3 e5 13.de5 Bb4 (< 13...Qb4 14.Qb4 Bb4 15.ef6 gf6 16.e4=+) 14.Qg3 (14.Qb2!? Bd2 15.Rd2 Qb2 16.Kb2 fe5 17.e4 de4 18.Re2–/+) 14...0–0–+ 15.f4 (15.a3 Bc5 16.f4 Be3 17.ef6 Rf6–+) 15...fe5 16.fe5 Bf5 17.h4 a5 (17...Qd4 18.Qb3–+) 18.Qb3? (better is 18.e4 Bd2 19.Rd2 Be4 20.h5–+) 18...a4–+ 19.Qb2 Qc5 20.Nb1 Ra5 (20...Qe3 21.Rd2 Bd2 22.Nd2–+) 21.c3 Rb5 (22.e4 Bc3 23.Nc3 Rb2 24.Kb2 Qb4 25.Kc2 Be4 26.Bd3 Rf2 27.Rd2 Rd2 28.Kd2 Qb2 29.Ke3 Qc3–+) 0–1. Vettenburg,Louis – Michiels, corr Belgium, 1993.

4.d4 Ne4 5.Nc3 e5 6.Ne4 de4 7.Ne5 Ne5 8.de5 Bb4 9.c3 Qd1 10.Rd1 =+.

4.d4 Ne4 5.e3 h6 6.c4 e6 7.a3 a5 8.b5 c5 9.Bd3 (9.Bd3 Nd6 10.Nbd2+=; 9.Nbd2 Nd2 10.Qd2 b6+=). Subedei – amoruritme, ChessWorld.net, 2005.

4.d4 e6 5.a3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.d4).

4.d4 e6 5.b5 Bd6 6.a4 Ne4 7.Ba3 Ndf6 8.e3? (better is 8.Nbd2+=) 8...Ng4–+ 9.Qe2 Ngf2 10.Rg1 Qe7 11.Bd6 Qd6 12.c3 0–0 13.Ne5 (13.Nbd2 a6–+) 13...f6 14.Nf3 e5 15.Qc2 ed4 16.cd4 Re8 17.Bd3 (17.Qb3 Ng4 18.Qa3 f5–+ (18...Nh2?! 19.Qd6 Nf3 20.gf3 Nd6 21.Kf2–+)) 17...Ng4 18.Ke2 Bf5 (worse is 18...Nh2 19.Be4 de4 20.Nh2 Qh2 21.Nc3–+) 19.Nc3 (19.Qc1–+) 19...Nc3 (19...Nc3 20.Kd2 Bd3 21.Qc3 Re3–+) 0–1. Baer,Cy (1895) – Contreras,Jose (2055), CiF, 2007.

4.d4 g6 5.e3 Bg7 6.Bd3 b6 7.0–0 c5= 8.bc5 bc5 9.dc5 Nc5 10.Be2 0–0 11.Nbd2 Rb8 12.Rb1 Qc7 13.Nb3 Bd7?? 14.Be5+– (14.Be5 Qc6 15.Nfd4+– (15.Bb8?! Rb8 16.Ne5 Qc7+–)) 1–0. mic (2250) – lsanchez (2275), net–chess.com, 2008.

4.e3 b6 5.Bb5 Bb7 +=.

4.e3 b6 5.c4 e6 6.a3 Bb7 (6...Bd6 7.Nc3=) 7.d4 c5 8.cd5 (8.Qb3 dc4 9.Bc4 Bf3 10.gf3 cb4 11.ab4 a5 12.ba5 Ra5=) 8...ed5 (8...Bd5 9.bc5 bc5 10.Nc3=) 9.bc5 bc5 10.dc5 Bc5 (10...Rc8 11.Be2+=) 11.Be2 (11.Bd3 Rb8+=) 11...0–0 12.0–0 Qb6 (12...Qe7 13.Bd4+=) 13.Bc3 (13.Nc3 Rfc8+=) 13...Ne4 (13...Ba6 14.Ba6 Qa6 15.Qd2=) 14.Bd4 (14.Qd3 Rab8=) 14...Bd4 15.ed4 (15.Qd4 Rfc8=) 15...Qh6 (15...Qb2 16.Nbd2 Nc3 17.Rb1 Qa3 18.Rb3–+) 16.Nbd2? (better is 16.Re1=) 16...Nc3–+ 17.Qb3 Ne2 18.Kh1 Ba6 (18...Nb6!? 19.Qd1 Nf4 20.Re1–+) 19.Qd5 Nf6 20.Qa5 Ng4 21.h3 (21.Nb3 Bc4 22.Nbd2 Nd4–+) 21...Nf4 22.Kg1 (22.Qg5 Bf1 23.Rf1 Qg5 24.Ng5 Nf6–+) 22...Bf1 23.Kf1 Nf6 (23...Rfe8 24.Kg1–+) 24.Qc7 (24.Qg5 Qg5 25.Ng5 Rae8–+) 24...Rfe8 (24...N6d5 25.Qd7–+) 25.Qb7 (25.Ne5 Qh5 26.Re1 N6d5–+) 25...Qg6 (25...N6d5!? 26.Ne5 Qh5 27.Ndf3–+) 26.Ne5 Qh5 27.Re1 (27.Ndc4 N6d5–+) 27...Rad8 28.Ndf3 g5 (28...N6d5 29.Rc1–+) 29.Qc6 (29.Ng5 Rd4 (29...Qg5?! 30.Qf7 Kh8 31.Qe8 Re8 32.Nf7 Kg7 33.Ng5–/+) 30.g4 Rd7 31.Nd7 Re1 32.Ke1 Qg5 33.Nf6 Qf6–+) 29...Kg7 (better is 29...N6d5–+) 30.Ng4 (30.Kg1–+) 30...Re1 31.Ke1 Ng4 32.hg4 Qg4 33.d5 (33.g3 Ne6 34.Qb7–+) 33...Rd5 34.Qc3 Kg6 (better is 34...f6 35.Qc7 Kh6 36.Qf7 Ng2 37.Kf1 Rd1 38.Ke2 Re1 39.Kd2 Qf4 40.Kc2 Qc1 41.Kb3 Qd1 42.Kb4 Qb1 43.Qb3 a5 44.Ka5 Qb3 45.Ne1 Qa3 46.Kb5 Ne1 47.Kc6–+) 35.Ne5 (35.Qc2 Kh6 36.Qc6 Kh5 37.Qf6 Qg2 38.Qf7 Kg4 39.Qd5 Nd5 40.Ne5 Kh4 41.Nc4 Qh1 42.Kd2–+) 35...Re5! (35...Re5 36.Qe5 Nd3 37.Kd2 Ne5–+) 0–1. Ramos,Vasco – Ramos,Diogo, Barreiro U18 2nd, 2003.

4.e3 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Nbd7).

4.e3 c6 5.c4 Qc7 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Qc7 5.c4 Nbd7).

4.e3 e5 5.Ne5 Bb4 6.Nd7 Bd7 7.Bd3 =.

4.e3 e5 5.Ne5 Bb4 6.Qf3 =.

4.e3 e5 5.Ne5 Ne5 6.Be5 Bb4 7.Nc3 =.

4.Ne5 e6 5.a3 Bd6 =+.

4.g3 g6 5.Bg2 Bg7 6.0–0 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.g3 0–0 5.Bg2 d5 6.0–0 Nbd7).

4.d3 e5

5.b5 Bb4 6.Nbd2 A) 6...Bd6 7.e4 (7.e3 0–0 8.Be2 c6 9.bc6–/+; 7.c4 d4 8.e3 de3 9.fe3+=) 7...0–0 8.ed5 Nd5 9.Be2+=; B) 6...Qe7 7.a3 (7.e3 0–0 8.Be2 a6 9.ba6+=; 7.c3 Bd6 8.e4 Nc5 9.ed5+=) 7...Ba5 8.e3 0–0 9.Be2+=; C) 6...e4 7.Nd4 (7.de4 de4 8.Nd4 e3 9.fe3+=; 7.a3 Bd6 8.de4 de4 9.Ng5+=) 7...Nb6 8.c3 Bd6 9.e3–/+.

5.b5 Bd6 6.c4 dc4 (6...d4 7.e3 de3 8.fe3 Ng4 9.Qd2!; 6...0–0 7.cd5 Nd5 8.e4 N5f6 9.Be2+/–) 7.dc4 e4 8.Nfd2 Qe7 9.e3! +=.

5.b5 Bd6 6.Nbd2 A) 6...a6 7.a4 (7.ba6 Ra6 8.e4 Rb6 9.Rb1+=) 7...0–0 8.e3 b6 9.Be2–/+; B) 6...c6 7.a4 (7.bc6 bc6 8.Rb1 0–0 9.c4+=; 7.c4 0–0 8.bc6 bc6 9.d4+=) 7...0–0 8.e3 Qa5 9.c4–/+; C) 6...0–0 7.e3 (7.e4 c6 8.d4 ed4 9.Nd4–/+) 7...c6 8.c4 cb5 9.cd5–/+; D) 6...c5 7.e3 (7.e4 Qa5 8.ed5 Nd5 9.a4–/+; 7.c4 d4 8.e3 a6 9.Be2+=; 7.bc6 bc6 8.Rb1 0–0 9.c4+=) 7...0–0 8.c4 Qa5 9.cd5+=; E) 6...e4 7.de4 (7.Nd4 Nc5 8.de4 Nfe4 9.c4–/+) 7...de4 8.Nd4 e3 9.fe3+=.

5.b5 Bd6 6.e3–/+ A) 6...a6 7.Nc3 (7.a4 0–0 8.Be2 ab5 9.ab5–/+) 7...ab5 8.Nb5 Bb4 9.c3–/+; B) 6...0–0 7.Nc3 (7.Be2 c6 8.bc6 bc6 9.Nc3+=; 7.c4 dc4 8.dc4 a6 9.ba6+=; 7.Nbd2 c6 8.bc6 bc6 9.Be2+=) 7...Be7 8.Be2 a6 9.ba6–/+; C) 6...c5 7.c4 (7.Nbd2 Qa5 8.c4 dc4 9.Qc2+=; 7.bc6 bc6 8.c4 Rb8 9.Qc2+=) 7...d4 8.Be2 0–0 9.0–0+=; D) 6...Rb8 7.Be2 c6 8.a4 Qc7 9.Nbd2–/+; E) 6...c6 7.a4 (7.c4 cb5 8.cb5 a6 9.ba6+=; 7.bc6 bc6 8.Nbd2 Rb8 9.Nb3+=; 7.Nc3 cb5 8.d4 Qa5 9.Qd2–/+) 7...0–0 8.Be2 a6 9.Nc3–/+.

5.b5 e4 6.Nfd2 A) 6...Bd6 7.e3 (7.de4 de4 8.e3 0–0 9.Be2+=) 7...0–0 8.de4 de4 9.Be2+=; B) 6...Be7 7.e3 (7.de4 de4 8.e3 0–0 9.Bd4+=; 7.c4 ed3 8.ed3 a6 9.ba6+=) 7...Nc5 8.Be2 0–0 9.0–0+=; C) 6...Bb4 7.a3 (7.e3 0–0 8.Be2 ed3 9.cd3+=) 7...Bd6 8.e3 ed3 9.Bd3+=; D) 6...Nc5 7.de4 (7.Nc3 e3 8.fe3 Ng4 9.Nf3+=; 7.e3 Bg4 8.f3 ef3 9.gf3+=) 7...Nfe4 8.a3 Bg4 9.h3–/+.

5.b5 e4 6.Nd4 A) 6...Ne5+= 7.e3 (7.Nc3 Bb4 8.e3 Bg4 9.Be2+=) 7...Bb4 8.Bc3 Qd6 9.Be2+=; B) 6...Nb6 7.a4 (7.Nc3 Bb4 8.a3 Bc5 9.e3+=) 7...Bb4 8.c3 Bc5 9.a5+=; C) 6...Bc5 7.e3 Nb6 8.Be2 Na4 9.Bc1+=; D) 6...a6 7.ba6 (7.e3 ab5 8.de4 Ne4 9.Bb5+=) 7...Ra6 8.e3 Rb6 9.Bc3+=; E) 6...Nc5 7.Nc3 Bd6 8.e3 0–0 9.Be2+=.

5.b5 e4 6.de4 de4–/+ 7.Ne5 (7.Nfd2 e3 8.fe3 Bc5 (8...Ng4+= 9.Nc4–/+) 9.Nc4–/+; 7.Ng5 e3 8.fe3 Qe7 9.Bd4–/+; 7.Nd4 e3 8.fe3 Ne5 9.Nf3–/+) 7...e3 (7...Bb4 8.c3 Bc5 9.Nd7–/+) 8.fe3 (8.Nd3 a6–/+ 9.ba6–/+) 8...Bb4 9.Nd2 (9.c3 Bc5 (9...Ne5–/+ 10.Qd8 Kd8 11.cb4–/+) 10.Nd3 Be3?!) 9...Ne5 10.Be5 Qe7 11.a3= (11.c3–/+ Qe5 12.cb4??) 11...Bd2 (better is 11...Qe5 12.ab4 Ng4 13.Ra3–+) 12.Qd2 Qe5 13.0–0–0 (13.Rb1?!) 13...Qa1–+ 0–1. Hanamitsu,Itsurou (1810) – Ling,AJ (2060), ICCF WSTT/3/06/3, 2006.

4.e3 a6

5.c4 Nb6 6.c5 Nbd7= 7.d4 h6 8.Nc3 e6 9.Bd3 c6 10.0–0 b6 11.a4 Be7 12.Qe2 0–0 13.Rfc1 Qc7 14.e4 bc5 15.dc5 Qf4 16.Re1 Ne5?? 17.Ne5+– Bb7 18.ed5 ed5 19.Nc6! Bc6 20.Qe7 Qb4 21.Reb1 Rfe8 22.Qd6 Re6 23.Qg3 Qc5 24.Bf5 Nh5 25.Qd3 d4 26.Be6 dc3 27.Ba3 Qg5+/– 28.Bf7! Kf7 29.Qc4 Qd5 30.Qd5 Bd5 31.Bb4 c2 32.Rc1 Bb3= 33.g3 Rd8 34.Kf1 Rd1 35.Ke2= Rc1 36.Rc1+/– Ba4 37.Kd2 Nf6 38.f3 Nd5 39.Bc5 a5 40.Ra1 Bb3 41.Ra5 Nc3 42.Bd4?? c1Q= 43.Kc1 Ne2 44.Kb2 Nd4 45.Kc3 Nc6 46.Rc5 Ba4 47.Kc4 Ne7=+ 48.Kd4 Ke6 49.f4 Kd6 50.g4? Bd1–+ 51.h3 Nc6 52.Rc6 Kc6 53.Ke5 Kd7 54.Kf5 Bc2 55.Ke5 Ke7 56.g5 Kf7 57.h4 Kg6 0–1. pumpkin (2355) – zzvotra (2560), net–chess.com, 2008.

5.Bd3 g6 6.0–0 Bg7 7.Bd4 0–0 8.Nc3 b6 9.Qe2 (9.Ne5 c5 10.Nd7 cd4 11.Nf6 Bf6 12.ed4 Bd4+=) 9...c5–/+ 10.bc5 bc5 (10...Nc5?! 11.Rfb1=) 11.Bf6 Nf6 12.Rab1 (12.Qe1!?–/+) 12...c4–+ 13.Bc4 dc4 14.Qc4 Be6 15.Qf4 (15.Qh4 Bg4 16.Nd4 e5–+) 15...Nd5 16.Nd5 Bd5 17.c4 (17.d4 Ba2 18.Ra1 Bc4–+) 17...Bf3 18.Qf3 Qd2 19.a4 Qc2 20.Rb7 Qf5?? (better is 20...Qa4 21.Re7 Qc4–+) 21.Qf5–/+ gf5 22.Re7 Rfb8 23.Rc1 Rc8 (23...Bb2 24.Rd1–/+) 24.c5 (24.Kf1!?+=) 24...Rc6–/+ 25.Rd7 Rac8 26.Rd5 Bf8 27.Rf5 Rc5 28.Rg5 Kh8 29.Rgc5 Rc5 30.Rc5 Bc5 31.g4 h6 32.h4 a5 33.Kg2 Kg7 34.Kf3 f6 35.Ke4 Kg6 36.Kd5 Bb4 37.Ke6 Be1 38.h5 Kg5 39.f3? (better is 39.f4 Kg4 40.Kf6 Kh5 41.Kf5–+) 39...Bd2 40.e4 Bf4 41.Kf7 Bg3 (41...Be5 42.Kg7 f5 43.Kf7 fg4 44.fg4–+) 42.Kg7 Bf4 43.Kh8?? (43.Kf7 Be5 44.Kg7 f5 45.Kf7 fe4 46.fe4–+) 43...Be5 44.Kg7 Bf4 ½–½. Yannick – Padre, playchess.de, 2005.

5.d4 a5 6.b5 =.

5.d4 Nb6 6.Bd3 =.

5.d4 e6

6.a3 a5 7.b5 =.

6.a3 Bd6

7.c4 0–0 8.c5 Be7 9.Bd3 +=.

7.c4 dc4 8.Bc4 a5 9.b5 =.

7.c4 dc4 8.Bc4 b5 9.Bd3 =.

7.c4 dc4 8.Bc4 Qe7 9.0–0 e5 10.Nc3 0–0 11.Be2 (11.Qc2 e4 12.Ng5 b5=) 11...ed4 (11...e4 12.Nd2=) 12.Nd4 (12.Qd4 Nb6=) 12...Ne5 13.h3 (13.Qc2 Neg4=) 13...Bd7 (13...Rd8 14.Qc2=) 14.Qc2 Rac8 15.Nf5 (15.b5 c5 16.bc6 Nc6=) 15...Bf5 16.Qf5 Ng6 (16...c5 17.b5 c4 18.ba6 ba6 19.Rfd1=) 17.Nd5 (17.Rac1 Rfd8+=) 17...Nd5= 18.Qd5 c6 (18...c5 19.bc5 Rc5 20.Qb3=) 19.Qf5 Rfd8 (19...Be5 20.Be5 Ne5 21.Rfd1=) 20.Bd3 (20.Rfd1 Rc7+=) 20...Bh2 (20...c5 21.Rfc1=) 21.Kh1+= Be5 22.Be5 Qe5 23.Rad1 Rb8 24.Qe5 (24.Qg4 Qc3 25.Bg6 hg6+=) 24...Ne5 25.Be2 Kf8 (25...Re8 26.Kh2=) 26.Rd8 (26.g4 Ra8=) 26...Rd8 27.Rd1 Rd1 28.Bd1 b6 (28...Nc4 29.a4=) 29.Be2 a5 30.f4 (30.ba5 ba5 31.f4 Nd7=) 30...Nd7 (30...ab4 31.ab4 Nd7 32.g4=) 31.ba5 (31.b5 c5=) 31...ba5 32.a4 (32.e4 Ke7=) 32...Nc5 (32...Ke7 33.Bd3+=) 33.Bd1= Ke7 34.Kg1 (34.g4 Kd6+=) 34...Kd6+= 35.Kf1 (35.g4 Kd5+=) 35...Kd5 36.Ke1 (36.Bf3 Ne4+=) 36...Kc4 37.Kd2 Kb4 (37...Ne4 38.Kc2 Nc3 39.Bh5–/+) 38.Bf3 Na4 39.Bc6 Nc3 40.Be8 f6 41.Kc2 (41.Bf7 a4–/+) 41...a4 42.Bf7 a3 43.g4 a2 (43...Ne4!? 44.Be6 g5–/+) 44.Kb2= Nd1 45.Ka2 Ne3 46.Kb1 (46.f5 Nd1 47.Bh5 Nf2+=) 46...Kc3 47.Kc1 (47.f5 Nd1 48.Bd5 Kd4–/+) 47...Kd3 (47...Ng2 48.f5–/+) 48.Bg8 (48.f5 Kc3=) 48...h6 (48...Ke4 49.f5 h5 50.gh5 Kf5 51.Kd2–/+) 49.Bh7 White prepares f5 49...Ke2 50.Be4 Nf1 (50...Ng4 51.hg4 Ke3 52.Bc2 Kf4 53.Bd1–+) 51.f5 (better is 51.Kc2!?+=) 51...Kf2–+ 52.Bd3 (52.Kd1 Kg3–+) 52...Nh2 (52...Nh2 53.h4 Ng4–+) 0–1. Schwichtenberg,J – Janssen,L, Dresden, 2001.

7.c4 c6 8.c5 Bc7 +=.

7.c4 c6 8.Nbd2 a5 9.c5 Be7 10.b5 +=.

7.c4 c6 8.Nbd2 b5 9.cd5 (9.c5 Bc7+=) 9...cd5= 10.Nb3 (10.Bd3 Nb6=) 10...0–0 (10...Nb6 11.Nc5=) 11.Bd3 Nb6 12.Nc5 Nc4 13.Bc3 Qc7 14.0–0 Bb7 15.h3 (15.Qc2 Bc6=) 15...Ne4 16.Qc2 (16.Be4 de4 17.Nd2 Nd2 18.Bd2 Bc5=) 16...Bc5 (16...Nc3 17.Qc3 Bc6 18.Ng5=) 17.dc5 Nc3 (17...Rfc8 18.a4=) 18.Qc3 Rfe8 (18...Rfc8 19.Rfc1=) 19.a4 (19.Qc2 h6=) 19...Bc6 (19...e5 20.Rfc1=) 20.ab5 (20.Rfc1 ba4 21.Bc4 dc4=) 20...ab5 21.Ra8 Ra8 22.Ra1 Qb7 (22...Ra1 23.Qa1 Qc8 24.Qd4+=) 23.Ra8 Qa8 24.Nd4 Bd7 25.Bc4 (25.e4 de4 26.Bc4 bc4 27.Qc4 Be8+/–) 25...dc4= 26.f3 (26.Nc2 Qe4=) 26...e5+= 27.Ne2 Qd5 28.Qc2 Bc6 29.Nc3 Qd7 30.Kf2 (30.Ne4 Qe7=) 30...g6 (30...f5 31.Qd1=) 31.Ne2 (31.Qd1 Qd1 32.Nd1 f5=) 31...Kf8 (31...f5 32.Qb2 Qe7 33.Kg1=) 32.Qa2 (32.Qc3 f6=) 32...Ke7 (32...Kg7 33.Qb2 Qf5 34.e4=) 33.Qa6 (33.Qa1 f6=) 33...f6 34.Qb6 Qb7 35.Qa5 Kd7 (35...Ke8 36.Nc3=) 36.Nc3 The pawn on b5 gets attacked 36...Ke7 37.e4 (37.Kg1 Kf7=) 37...Qd7 38.Qa1 Kf7 39.Qc1 Qa7 (39...Qd3 40.Kg3=) 40.Qh6 Ke8 (40...Kg8 41.Qd2 Qe7 42.Kg1=) 41.h4 (41.Qh4 Qf7+=) ½–½. Szajna,W – Wojcieszyn,J, Lubniewice Poland, 1998.

7.c4 c6 8.Nbd2 h6 9.Bd3+= 0–0 10.0–0 (10.c5 Bc7+=) 10...b5 (10...Bc7 11.c5+=) 11.c5+/– Bc7 12.a4 Bb7 13.Qc2 Qe7 14.Rfd1 (14.Rfe1 ba4 15.Bc3 a5+=) 14...Rfe8 (14...ba4 15.Ra4 Rfb8 16.Ra3+/–) 15.Nb3 (15.Ne5 ba4 16.Ra4 Ne5 17.de5 Nd7+=) 15...e5 (15...Reb8 16.a5+=) 16.de5+/– Ne5 17.Ne5 Be5 18.Be5 (18.Nd4 Bc7+/–) 18...Qe5 19.Rac1 (19.Nd4!?+/–) 19...ba4 (19...Ng4 20.g3=) 20.Nd4 a3 21.Qa4 Ng4 (21...Rab8 22.Qa3 (22.Nc6?! Bc6 23.Qc6 Rb4=) 22...Ne4 23.Be4 (23.Ba6 Ra8–/+) 23...Qe4 24.Ra1+=) 22.Nf3 (22.Nc6 Qh2 23.Kf1 Re3 24.Bh7 Kh7 25.fe3 Re8–+) 22...Qc7 23.Qa3 Ne5 24.Ne5 Re5 (24...Qe5 25.Qa4+=) 25.Ra1+/– Rh5 (25...Bc8 26.Qc3+/–) 26.h3 Qd8 27.Qa5 Qc8 28.Qb6 (28.Rd2 Rg5 29.f4 Rh5+/–) 28...Rh4 (28...Rb8+/–) 29.e4 (29.Ra4 Qd7+/–) 29...de4+= 30.Bc2 e3 31.fe3 Rb8 32.Rd2 Rh5 33.Bb3 Kh7 (33...Re5 34.Rad1 Qf8+–) 34.Bf7+– Rg5 35.Bb3 Qe8 36.Kh1 (36.Bc2 Kh8 37.Rad1 Rd5 38.Rd5 cd5+–) 36...Re5 37.Rad1 Ba8 38.Bc2 Kg8 39.Qc7 Rd5 40.Bb3 (40.Bg6 Rc8 41.Be8 Rc7+–) 40...Rb4 41.Rb2 (41.Rd5?! cd5 42.Bd5 Bd5 43.Rd5 Kh7+/–) 41...a5 (41...Rb5 42.Bd5 cd5 43.Rb5 ab5 44.Ra1+–) 42.e4! (42.Bd5?! cd5 43.Rb4 ab4+–) 42...Qe4 Decoy theme: e4. (42...Re4 Decoy theme: e4 43.Bd5 Theme: Double Attack) 43.Qc8 Kh7 Black prepares the advance a4 44.Bd5 cd5 45.Rb4 (45.Qa8?! Rb2 46.Qd5 Qd5 47.Rd5 a4=) 45...d4 (45...ab4 46.Qa8 b3+–) 46.Rb2 a4 (46...Bd5 47.Qa6+–) 47.Qg4 (47.Qg4 Qg4 48.hg4+–) 1–0. Glowatzky,Thomas (1700) – Munkwitz,Wolfgang (1615), ETC, 2005.

7.Bd3 Nb6 =.

4.e3 Nb6

5.a4 e6 6.a5 Nc4 7.Bc3 =.

5.a4 Bg4 6.d3 (6.h3 Bc8=) 6...e6+= 7.b5 Bd6 (7...a6 8.Be2+=) 8.Be2= 0–0 9.h3 Bh5 10.0–0 Re8 (10...a5 11.Nbd2=) 11.a5 Nbd7 12.d4 (12.g4 Bg6=) 12...Bf3 13.Bf3 e5 (13...c6 14.bc6 bc6 15.c4=) 14.Nd2 (14.de5 Ne5 15.Bd5 Nd5 16.Qd5 c6+=) 14...e4 15.Be2 Nf8 (15...c6 16.a6 Qc7 17.c4=) 16.c4 (16.a6 Rb8+=) 16...c6 (16...a6 17.c5 Be7 18.ba6 ba6 19.Rb1+=) 17.bc6 (17.a6!? Rb8 18.c5+=) 17...bc6= 18.cd5 (18.Qa4 Rb8 19.Rfb1 Qd7=) 18...cd5 19.Ba3 Ba3 20.Ra3 Qd6 21.Qa1 Rac8 22.Rc1 Rc1 23.Qc1 N8d7 (23...Rb8 24.Qc5 Qc5 25.dc5–+) 24.Rc3+= Nb8 (24...Qb4 25.a6+=) 25.Nb3 (25.Rc7 a6+=) 25...Nfd7 (25...Qb4 26.Qd2+=) 26.Nc5 (26.Rc8!? Rf8 27.Qc7+/–) 26...Nc5+= 27.Rc5 Nd7 (27...a6!?+=) 28.Rc7+/– Nf6 (28...Ra8 29.Bb5 Nf6 30.Qc5+/–) 29.Ra7+– Qe6 30.Rc7 Re7? (better is 30...Qf5+–) 31.a6 Rc7 32.Qc7 Nd7 (32...Qe8 33.a7 Nd7 34.Qc6+–) 33.a7 (33.Qd8 Nf8+–) 33...Qe8 34.Bb5 (34.Bb5 Qa8 35.Bc6 Qa7 36.Qa7+–) 1–0. Fredek (2065) – Guest1305473, Freundschaftspartie, 5m + 0s, 2006.

5.Bb5 c6 6.Be2 Bg4 7.b5 e6 8.bc6 bc6 9.Ne5 Be2 10.Qe2 Qc7 11.f4 Bd6 12.Ng4 Ne4 (better is 12...Ng4!? 13.Qg4 f5+=) 13.d3+= Nc5? (better is 13...f5 14.de4 Nc4+=) 14.Bg7+– Rg8 15.Nf6 Ke7 16.Qg4 Nd3? (16...Qd8+–) 17.cd3 Bb4 18.Kf1 (18.Kf2 Qb8+–) 18...Nd7 (18...Qc8 19.Ng8 Qg8 20.Kf2+–) 19.Ng8 Rg8 20.Qh4 f6 21.Qh7 Rg7 (21...Re8 22.a3 Ba5 23.h4+–) 22.Qg7 Kd6 23.a3 (23.f5 e5 24.Ke2 Qb6+–) 23...Bc5 (23...Ba5 24.f5+–) 24.d4 Bb6 25.Nc3 a6 (25...Qd8 26.Rc1+–) 26.Rc1 c5 (26...Qb7 27.Ke2+–) 27.f5 cd4 (27...Qd8 28.dc5 Bc5 29.Rd1 Ba3 30.Ne4 Kc6 31.fe6+–) 28.Nb5! ab5 29.Rc7 Kc7 (29...Bc7 30.fe6 Ke6 31.ed4 Bb6+–) 30.fe6 de3 31.Qd7 Kb8 32.e7 d4 (32...e2 33.Ke2 Bc7 34.e8Q Ka7 35.Qc7 Ka6 36.Qe6) 33.e8Q Bd8 34.Qed8 1–0. b4_player – opponent, gamecolony.com, 2007.

5.Bd4 Bg4 6.h3 (6...Bf3 7.Qf3=) =. MT – guest912, ICC, 2004.

5.Be2 e6 6.a3 c5 =.

4.e3 e6

5.a3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3).

5.a3 c5 6.b5 Bd6 7.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.b5 Bd6 6.Nf3 0–0 7.c4 Nbd7).

5.a3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7).

5.a3 Be7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.Be2 Nbd7).

5.b5 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Nbd7).

5.b5 b6 6.c4 Bb7 7.Be2 Bd6 8.0–0 0–0 9.d3 c5 10.Nbd2 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2).

5.b5 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 Nbd7).

5.b5 Be7 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.c4 Nbd7).

5.b5 Be7 6.Be2 0–0 7.0–0 c5 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7 8.0–0).

5.b5 c5

6.c4 Qc7 7.Nc3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Nc3 Qc7).

6.c4 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7).

6.c4 Be7 7.Be2 0–0 8.0–0= (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7 8.0–0).

5.b5 c6

6.a4 a6 7.c4 ab5 8.ab5 Ra1 9.Ba1 Nb6 (9...Bd6 10.bc6 bc6 11.Bf6 Nf6 12.cd5 cd5 13.d4+=) 10.bc6 (10.cd5 ed5 11.bc6 bc6=) 10...bc6 11.Ne5 Qc7 (11...dc4 12.Nc3= (12.Bc4 Nc4 13.Nc4 Bb4+=)) 12.Qc2 (12.cd5 ed5 13.Qc2 Bd7=) 12...Bd6+= 13.c5 Be5 14.cb6 Qd6 (14...Qb8 15.Be5 Qe5 16.Qc6 Ke7 17.d4+–) 15.Be5+– Qe5 16.Qc6 Ke7 (16...Kd8 17.d4 Qb8 18.Bd3+–) 17.b7 (17.d4 Qd6 18.Bb5 Bd7 19.Qd6 Kd6=) 17...Bd7 18.Qb6 (18.Qc5 Kd8+–) 18...Qd6 19.Qd6 Kd6 20.Nc3 (20.d4 Rb8 21.Ba6 Bc6=) 20...Kc7 (20...Rb8 21.Ba6+/–) 21.Nb5 (better is 21.Ba6+/–) 21...Bb5= 22.Bb5 Rb8 23.Ke2 (23.d4 Rb7 24.Bd3 Rb2+=) 23...Rb7 24.Rc1 Kd6 25.Rc6 Ke7 26.Bd3 Kd7 27.Ra6 h6 28.f4 Ke7 29.Ra1 Nd7 (29...Ne4 30.Ra4 f5 31.Be4 de4 32.Ra8+=) 30.Rb1 (30.e4 Nf6 31.e5 Nd7=) 30...Ra7 (30...Rb1 31.Bb1 g5 32.d4=) 31.Rc1 (31.g4 Nf6 32.h3 Ne4=) 31...Kd6 (31...Nf6 32.Bb5+=) 32.Rc8 (32.Bb5 Nf6=) 32...Nb6+= 33.Rg8 f6 34.Rd8 Ke7 (34...Kc7 35.Re8 Kd7 36.Bb5 Kd6 37.Rb8+=) 35.Rb8 (35.Rg8 Kf7 36.Rb8 Nc4=) 35...Nd7 (35...Nc4 36.f5=) 36.Rc8 (36.Rb5 g5=) 36...Rb7 (36...e5 37.f5=) 37.Bg6 Rb8 (37...Nb6 38.Re8 Kd6 39.Rd8 Nd7 40.d4=) 38.Rc7 (38.Rb8 Nb8 39.d3 e5=) 38...Rd8 (38...Kd6 39.Ra7=) 39.Bd3 (39.d4 Kd6 40.Rb7 Rc8+=) 39...Rb8 40.Bg6 Rd8 (40...Kd6 41.Ra7=) 41.f5 (41.d4 Kd6 42.Rb7 Rb8=) 41...e5 (41...Kd6 42.Rb7=) 42.Ra7 Kd6 43.Ra6 Kc5 44.Bf7 (44.Ra5 Kd6=) 44...Nb6 45.Be6 Ra8 (45...d4 46.Ra5 Kc6 47.e4=) 46.Ra8 Na8 47.e4 (47.d3 Nc7 48.Bf7 Nb5=) 47...de4 (47...Nc7 48.Bd5 Nd5 49.ed5 Kd5 50.Ke3=) 48.Ke3 Nc7 49.Bc8 (49.Ke4 g6=) 49...Nb5 50.Bb7 Nd6 (50...Nd4 51.Be4 Kd6 52.g3=) 51.Be4 ½–½. Stejskal,Drahoslav – Trojan,Lubos (2200), CZE–chT2a, 1995.

6.a4 a6 7.bc6 bc6 8.Be2 Rb8 =+.

6.a4 Bd6 7.Nc3 0–0 +=.

6.a4 Bd6 7.c4 Qe7 (7...0–0 8.Nc3+=) 8.Be2= 0–0 (8...e5 9.cd5 cd5 10.d4=) 9.0–0+= Rd8 (9...e5 10.cd5 cd5 11.d4=) 10.Qc2= e5 (10...Nb6 11.Na3+=) 11.d4 (11.Nc3 e4 12.Nd4 Ne5 13.bc6 bc6 14.cd5 cd5+=) 11...e4 (11...c5 12.Nc3 dc4 13.d5+=) 12.Nfd2+= Nf8 13.Ba3 (13.Nc3!?=) 13...Bg4+= 14.Re1 (14.Bd6 Qd6 15.Nc3 Be2 16.Ne2 Ne6=) 14...Be2 (14...Ba3 15.Ra3 Be2 16.Re2+=) 15.Re2 Ng6 (15...Ba3 16.Ra3 Ne6 17.bc6 bc6 18.c5+=) 16.Nf1 (16.Bd6 Qd6 17.Nc3 h5=) 16...Rac8 (16...c5 17.dc5 Bc5 18.Bc5 Qc5 19.cd5+=) 17.Bd6+= Qd6 18.c5 Qd7 (18...Qe7 19.Nfd2+=) 19.Qb2 Qg4 (19...b6 20.Rc2 bc5 21.Rc5 Ne7=) 20.h3 (20.Nc3 Qd7=) 20...Qd7 (better is 20...Qg5!?–/+) 21.Nc3= Nh4 22.Rc2 (22.Ng3 Nf3 23.Kh1 h5=) 22...h5 (22...Nf5 23.Rb1=) 23.a5+= Rb8 24.Qb1 (24.a6 Nf3 25.Kh1 h4+=) 24...a6 (24...Nf3 25.Kh1=) 25.ba6+= ba6 26.Rb2 Rb2 27.Qb2 g5 (27...Nf3 28.Kh1+=) 28.Ne2 (28.Rb1 Nf3 29.Kh1 Nh4+/–) 28...Kh8 (28...Nf3 29.Kh1+=) 29.Rb1 g4 (29...Nf3 30.Kh1+/–) 30.Qb7 (better is 30.hg4 Ng2 31.Kg2 Qg4 32.Neg3+=) 30...Qf5?? (30...gh3 31.Qd7 Nd7 (worse is 31...Rd7 32.gh3 Nf3 33.Kh1+–) 32.gh3 Nf3 33.Kg2 h4=) 31.Nfg3+– Qg5 (31...Qd7 32.hg4 Qb7 33.Rb7 Ng4 34.Rb6+–) 32.hg4 Ng4 33.Qf7 Nf6 (33...Rg8+–) 34.Rb6 (34.Rb6 Qg7 35.Qe6+–) 1–0. Rodriguez – Nardini, Salta, 1993. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Nbd7 4.e3 e6 5.b5 c6)

6.a4 Bd6 7.bc6 bc6 8.Nd4 =+.

6.Nc3 Bd6 =.

6.c4 dc4 7.bc6+= bc6 8.Bc4 Qb6 9.Bf6 Nf6 10.Nc3 Nd5 (10...Qc5 11.Qa4 Rb8 12.a3+=) 11.Ne4 (11.0–0 Be7+/–) 11...Rb8+= 12.0–0 Qa5 (12...f5 13.Nc3+=) 13.Nd4 (13.Ne5 Qc7 14.f4 Be7+/–) 13...Bd7+= 14.Qh5 (better is 14.Rb1 Rb6 15.Qc2+=) 14...Qc7? (14...Be7 15.Rab1 0–0 16.Rfd1=) 15.Rab1 (15.Ng5 g6 16.Qf3 f5+–) 15...Rb6? (15...g6 16.Qh4 Be7 17.Qh6=) 16.Rbc1?? (better is 16.Ng5 g6 17.Qf3+–) 16...g6= 17.Qf3 Bg7 18.Bd5 ed5 19.Nf6 Bf6 20.Qf6 Increases the pressure on the backward pawn 20...0–0 21.Rc5 Rc8 (21...Rfb8 22.h3=) 22.Rfc1+= Qb7 23.h3 Rb1 24.Rb1 Qb1 25.Kh2 Qa2? (better is 25...Qb6 26.Qe7 Qb8 27.f4 Qc7+/–) 26.Qe7+– Bf5 27.Nf5 gf5 28.Qb7 (better is 28.Qg5!? Kf8 29.Qf5+–) 28...Rf8+/– 29.Qc6 Qd2 30.Rd5 Qb2? (30...Qf2 31.Qf6 Qc2 (31...Qe3?? 32.Rf5 h6 33.Rf3 Qf3 34.gf3+–) 32.Rf5 Qc7 33.Kh1 h6 34.Qh6 Qc1 35.Kh2 Qc7 36.Kg1 Qc1 37.Rf1 Qc5+/–) 31.Rf5+– f6 32.Rf4 Qb8 33.g3 Qd8 34.Ra4 Rf7 35.Rd4 Qe7?? (35...Qf8 36.Qd5+–) 36.Qc8 (better is 36.Re4 Qd7 37.Rg4 Qg4 38.hg4+–) 36...Rf8 37.Qg4 Qg7 38.Qf5 Kh8 39.Qc5 (39.Kg2 a6+–) 39...h6 (39...Re8 40.Ra4 Re7 41.Rf4+–) 40.Qc6 (40.Re4 Qg8+–) 40...Rf7 41.Rd8 Kh7 42.Qe4 f5 43.Qd3 (43.Qd5!? Qf6+–) 43...Qb2 44.Kg2 Qb7 (44...Qe5 45.Rd4+–) 45.Kg1 (45.Rd5 Qc6+–) 45...Qe7 46.Rd4 (46.Rd6 Qe5+–) 46...Qe6 (46...Kg7 47.h4+–) 47.e4 (47.Rd6!? Qe7+–) 47...Kg7 48.ef5 Qf5 49.Rg4 Kh7 50.Qe2 Qb1 51.Kh2 Qb6?? (better is 51...a5+/–) 52.Qe4 Kh8 53.Qe8 (53.Qe8 Rf8 54.Qf8 Kh7 55.Rg7#) 1–0. Skrzypczak,Michal (1960) – Polarczyk,Pawel (1825), Wielkopolska III Liga Seniorow Poland, 2012.

6.c4 Bd6!? +=.

6.c4 Be7 7.Be2 0–0 8.0–0 cb5 9.cb5 b6 10.d4 a6 11.Nc3 ab5 12.Nb5 Ne4 13.a4 Ba6 14.Qb3 f5 15.Ba3 Rc8 16.Rfc1 Ba3 17.Qa3 Qf6 18.Bd3 f4 19.Rc8 Rc8 20.Be4 de4 21.Nd2 Bb5 22.ab5 Qf5 23.Qd6 Nf6 (23...fe3 A) 24.Qd7 Qf2 25.Kh1 Rf8 26.Qe6 Kh8 27.Qe4 ed2–+ (27...Qd2?! 28.h3=); B) 24.fe3 Qd5 25.Qe7+/–) 24.Qf4 (24.Qb6 e5+/–) 24...Qb5 (24...Qf4!? 25.ef4 Rc2=) 25.Ne4+/– Ne4 26.Qe4 Qc4 27.g3 b5 28.Rb1 (better is 28.Ra7!? Kh8 29.Qe5+–) 28...Rf8+/– 29.Qe5 Qa2 30.Rf1 (30.Rb5?? Qf2 31.Kh1 Qf1) 30...b4 31.Qe4 Qc4 32.Qb1 b3 33.Rc1 Qe2 34.Rf1 b2 35.Qd1?? (better is 35.Qe4+=) 35...Rf2!! 36.Qe2 Re2 (36...Re2 37.Rb1 Rc2 38.Rb2 Rb2–+) 0–1. Abascal Vicente (1955) – Perez de Villar Framil (2100), Sant Marti op 6th, 2004.

6.bc6 bc6 7.Be2 Rb8 =+.

5.b5 Bd6

6.a4 0–0 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0 7.a4).

6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3).

6.d3 0–0 7.Nbd2 c5 8.c4 a5 9.g3 e5 10.cd5 Nd5 11.Nc4 Qe7 12.Bg2 N5b6 13.Nd6 Qd6 14.0–0 f6 15.a4 Rd8 16.Qb3 Kh8 (16...c4!? 17.dc4 Nc5+=) 17.Rfd1 Nf8 18.Ba3 Be6 19.Qc2 Nfd7 20.d4 ed4 21.Rd4 (better is 21.Nd4!? Bg4 22.Bb7 Bd1 23.Rd1+–) 21...Qc7+= 22.Rh4 Bg8 23.Nd4 (23.Rd1 Rac8+=) 23...h6 (23...Nc4 24.Nb3 Na3 25.Ra3=) 24.Rc1 (24.Nf5 Bh7+=) 24...Nc4= 25.Nf5 (better is 25.Bc5!? Nc5 26.Bf1 Ne3 27.fe3=) 25...Nde5 26.Ra1 Rd2 27.Qe4 (27.Qc1 Rf2! 28.Qb1 Rd2–+) 27...Rad8 (better is 27...Na3 28.Qb7 Qb7 29.Bb7 Rb8–+) 28.f4?? (28.Nh6 gh6 29.Qf4 Rd1 30.Bf1–+) 28...Rd1–+ 29.Rd1 Rd1 30.Bf1 Rf1! (30...Rf1 31.Kf1 Nd2 32.Kg2 Ne4 33.fe5 Qe5–+; 30...Na3?! 31.fe5 Qe5 32.Qf3–/+) 0–1. Valenta,Vit jr (2235) – Fiser,Jiri (2140), Litomysl op CZE, 2006.

6.d4 0–0 7.c4 =.

6.d4 c6 7.a4 a6 (7...0–0 8.Bd3+=) 8.Nbd2 (8.c4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 cb5=) 8...0–0 (8...c5 9.dc5 Nc5 10.Be2=) 9.Nb3 (9.c4 c5=) 9...Ne4 (9...cb5 10.ab5 Ne4 11.ba6 ba6 12.Ba3=) 10.c3 (10.bc6 Bb4 11.Nfd2 Qh4+=) 10...c5 (10...Ndf6 11.Bd3–/+) 11.Nbd2 (11.c4 Nb6 12.Nbd2 Nc4 13.Bc4 Nd2 14.Nd2 dc4 15.Nc4 ab5 16.ab5 Ra1 17.Ba1 Be7=) 11...f5 (11...Nd2 12.Qd2 c4 13.ba6 Ra6 14.e4–/+) 12.Bd3 (12.c4 Qa5+=) 12...c4–/+ 13.Bc2 (13.Be2 ab5 14.ab5 Ra1 15.Qa1 Ndf6–/+) 13...ab5 14.ab5 Ra1 (14...Ra5 15.Qc1–/+) 15.Qa1 Qb6 (15...Ndf6 16.0–0 Qc7 17.b6 Qb6 18.Ba3–/+) 16.0–0 Qb5 17.Rb1 (17.Ba3 Qa6 18.Bd6 Qd6–/+) 17...Qc6 (17...Qa6!?–/+) 18.Ba3+= Ndf6 (18...b6 19.Bd6 Qd6 20.Ba4+=) 19.Ne4 fe4 Black is in command (worse is 19...de4 20.Ne5 Qd5 21.Bd6 Qd6 22.Qa4+=; 19...Ne4?! 20.Ne5 Qa6 21.Bd6 Qa1 22.Ra1 Nd6 23.Ba4+=) 20.Bd6 (20.Ne5 Qc7+=) 20...Qd6–/+ 21.Ne5 Nd7 22.Nd7 Qd7 (worse is 22...Bd7 23.Rb7 e5 24.Qd1+=) 23.Qa5 Qf7 Threatening mate: Qxf2 24.Rf1 Qh5 (24...Qe7 25.Rb1–/+) 25.Bd1 (better is 25.Be4!? Qf7 26.Bc2=) 25...Qg5–/+ 26.Qc7 (26.Be2 Qe7–/+) 26...h5 (26...e5!? 27.Qe5 Qe5 28.de5 Re8–/+) 27.f4+= ef3 (27...Qg6 28.Qe7+=) 28.Rf3= Rf3 29.Bf3 Qe3 30.Kf1 Qc3 (30...Qc1 31.Kf2 Qc2 32.Kf1 Qb1 33.Kf2 Qa2 34.Ke3=) 31.Qc8+= Kh7 (31...Kf7!? 32.Bh5 Kf6 33.Qf8 Kg5 34.Qg7 Kh5 35.Qe5 Kg6 36.Qe6 Kg7 37.Qe5 Kg6 38.Qd6 Kg7 39.Qd5 b5+=) 32.Qe6+/– Qd3 33.Ke1 c3? (better is 33...Qc3!? 34.Kf2 Qd4 35.Kg3 b5+/–) 34.Bd5 (34.Qd5!? g6 35.Be4 Qd2 36.Kf1 Kh6+–) 34...Qd2 35.Kf1 Do you see the mate threat? 35...Qf4 (better is 35...Qd1 36.Kf2 Qd4 37.Ke2 Qd2 38.Kf3 g6+–) 36.Ke1?? (better is 36.Ke2 g6 37.Be4 Qd2 38.Kf3 Qd1 39.Kg3 Qe1 40.Kh3 Qe3 41.g3+–) 36...Qd2= 37.Kf1 Threatening mate: Be4 37...Qd1 (37...Qf4 38.Ke2 g6+–) 38.Kf2+– Qd4 39.Kg3 (39.Ke2 Qd2 40.Kf3 g6+–) 39...h4 (39...g6 40.Be4 Qe3 41.Kh4 Qf4 42.Kh3+/–) 40.Kh3 (40.Kf3 g6 41.Be4 Qg7+–) 40...Qf6+/– 41.Qg8 (41.Qe4 g6+/–) 41...Kh6 42.Qh8 (42.Bb7?! Qf5 43.g4 hg3 44.Kg3 Qe5 45.Kf3 Qf6 46.Ke2 Qe7 47.Kd3 Qb7 48.Qe6 Kh7 49.Qh3 Kg8 50.Kc3 Qe4=) 42...Kg6 43.Be4 (worse is 43.Bb7 Qe6 44.Kh4 Qe7 45.Kg4 Qb4 (45...Qb7?! 46.Qh5 Kf6 47.Qf5 Ke7 48.Qe5 Kf7 49.Qc3=) 46.Kg3 Qb7 47.Qe8 Qf7 48.Qc6 Qf6–/+; 43.Qh4?! Qh4 44.Kh4 Kf5+=) 43...Kf7 44.Qh5 (44.Bb7?? Qf5 45.Kh4 c2–+) 44...Kf8 (44...Ke7!?+/–) 45.Qc5+– (45.Qh4 Qh4 46.Kh4 b5+–; 45.Bb7?! Qe6 46.g4 Qe3 47.Kg2 h3 48.Kf1 Qc1 49.Ke2 Qb2 50.Kd3 Qb7 51.Qc5 Kg8 52.Qc4 Kh8 53.Kc3 Qf3 54.Kd2 Qg2 55.Qe2 g5=) 45...Kf7 46.Qc7 Qe7 (46...Ke6 47.Kg4+–) 47.Bd5 Kf8 48.Qc8 Qe8 49.Qf5 (49.Qb7 g5 50.Bb3 Qe3 51.g3 Ke8+–) 49...Ke7 50.Qe6 Kd8 1–0. Jalo,Pentti – Rasanen,Jarmo, FIN–chT1, 2000.

6.d4 c6 7.c4 0–0 =.

6.d4 c6 7.c4 Bb4 (7...0–0 8.c5 Bc7 9.Nbd2=) 8.Nbd2 (8.Bc3 Be7=) 8...dc4 9.Bc4 cb5 (9...Nb6 10.Bd3=) 10.Bb5 Qa5 11.Bd3 0–0 12.0–0 b6 (12...Rd8 13.a3 Be7 14.Qe2+=) 13.Nc4 Qh5 14.a3 Be7 15.Nfe5 Qd1 16.Rfd1 Bb7 17.Nd7 (17.Rac1 Rfd8+=) 17...Nd7 18.Rac1 Rfc8 (18...Rfd8 19.e4+=) 19.e4 Nf6 (19...Rab8 20.f3+=) 20.f3 h6 (20...Rab8 21.g4+=) 21.g3 (21.Kf2 Rab8+=) 21...Rc7 (21...Rab8 22.h3+=) 22.Ne5 (22.Ne3 Rac8+=) 22...Rac8 23.Rc7 Rc7 24.Rc1 ½–½. Armstrong,Alan – Dould,John, Eclipse, 2000.

6.d4 Qe7 7.Be2 (7.c4 dc4 8.Bc4 e5=) 7...e5 (7...0–0 8.c4 dc4 9.Bc4=) 8.de5= Ne5 9.0–0 Bg4 10.Nbd2 Nf3 11.Bf3 Bf3 12.Nf3 c6 13.bc6 bc6 14.c4 dc4 15.Qa4 0–0 16.Rac1 Rab8 17.Bf6 Qf6 18.Rc4 (18.Qa7 c5=) 18...c5 19.e4 Be7 20.Nd2 Qb6 21.Nb3 Attacks the isolani on c5 21...Rfc8 (21...Rfd8 22.Rfc1=) 22.e5 (22.f4 Rd8=) 22...Rc7 (22...Qe6 23.f4=) 23.Rfc1 The pressure on the isolated pawn grows 23...h6 24.g3 (24.Qa3 Rd8=) 24...Rbc8 25.h4 (25.f4 f6=) 25...Kf8 (25...Qe6 26.f4+=) 26.Re1 Kg8 (26...Qe6 27.Nc1=) 27.f4 (27.Rec1 Qe6+=) 27...Bf8 (27...Qe6 28.Kh2+=) 28.f5 (28.Rd1 Qe6=) 28...a6 29.Qa3 Qb5 (29...Rd7 30.Qc1=) 30.Qc1 Re8 31.Kh2 a5 (31...Rd7 32.e6 Rd5 33.Qc2=) 32.Ree4 (32.Qc2 Rcc8+=) 32...a4 (32...Rd7 33.Qc3=) 33.Nd2 (33.Nd4 Qb8=) 33...Rd8 34.e6 (34.Nf3 Rb7=) 34...Rd5+= 35.Rf4 Bd6 36.Rf2 Rd3 (36...fe6 37.fe6 Re7 38.Qc2+=) 37.Ne4= White intends f6 37...Be5 38.ef7 Rf7 (38...Kf7!? 39.Rfc2 Qe8+=) 39.Rc5+/– Qe8 40.f6 Qe6 (40...Rd4 41.Rf5 Bc7 42.Rc7 Qe4 43.Rf7 Kf7 44.Qc7 Ke6 45.Qc8 Kd6+–) 41.Rc8+– Kh7 Plans Qg4 42.Qc2 g6 43.h5 (43.Qd3?! Qc8 44.Qb5 Qe6+/–) 43...Qd5 44.Rf3! Bg3 (44...Rf3 Decoy theme: f3 45.Ng5 A double attack) 45.Rg3 The mate threat is hxg6 45...Qh5 46.Kg2 Rd1 47.Nf2 (47.Qa4?? Qh1 48.Kf2 Qf1 49.Ke3 Rd3) 47...Qd5 48.Qe4 Rf6 49.Rc7 Kg8 50.Qd5 (50.Rg4 Rd4 51.Qd5 Rd5 52.Ra4 Rg5 53.Kf1 Rgf5 54.Ra8 Rf8 55.Rf8 Kf8+–) 50...Rd5 51.Ng4 Threatening mate: Nxf6 51...Rd2 52.Kh3 Rf1 53.Nh6 Kf8 54.Rh7 (54.Rg6? Rh1 55.Kg4 Rg1 56.Kf5 Rf2 57.Ke5 Rg6 58.Rc8 Ke7 59.Rc7 Ke8–+) 54...Rff2 55.Ng4?? (better is 55.a3 Rh2 56.Kg4+–) 55...Rf1= 56.Nh6 Rff2 57.Kh4 (better is 57.a3 Rh2 58.Kg4+–) 57...Rh2 58.Kg5 Rhg2 59.Rg2 Rg2 60.Kf6 Do you see the mate threat? 60...Rf2 61.Kg6 Ra2 62.Kf6 (62.Nf5 Ke8+=) 62...Ke8 63.Re7 Kd8 64.Nf7 Kc8 65.Ke6 a3 66.Nd6 Kb8 67.Rb7 Ka8 68.Rb3 Ra1 (68...Re2 69.Kd5 Rd2 70.Ke5 a2 71.Ra3 Kb8+/–) 69.Kd7+/– a2 70.Ra3 (70.Rc3 Kb8 71.Ra3 Rc1 72.Ra2 Rc7 73.Ke8 Rc1+/–) 70...Kb8 71.Ra4 Rc1 72.Ra2 Rc7 73.Kd8 (better is 73.Ke8+/–) 73...Rd7= 74.Kd7 ½–½. Tartakower,Savielly – Vajda,Arpad, Vienna, 1921.

6.Be2 0–0 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0 7.Be2).

4.e3 g6

5.a3 Bg7 6.Be2 0–0 7.0–0 b6 8.c4 Bb7 9.cd5 Bd5 10.Nc3 e6 (10...Bb7 11.d4+=) 11.Nd5+/– ed5 12.d4 c6 13.Rc1 Rc8 14.Rc2 Rc7 15.Qd2 Ne4 16.Qd1 Ndf6 (16...Nef6 17.Qc1 Qa8 18.Ne5 Ne5 19.de5+=) 17.Qb1 (better is 17.Ne5!?+/–) 17...Qd6+= 18.Rfc1 Qd7? (better is 18...Nf2 19.Kf2 Ng4 20.Kg1 Bh6=) 19.Bb5!+– Rfc8 (19...cb5 20.Rc7 Pinning (20.Rc7 Deflection)) 20.Ne5 Qf5 21.Bc6 Ng4? (better is 21...Nf2 22.Rf2 Qb1 23.Rb1 Rc6 24.Nc6 Rc6+–) 22.Ng4 (22.Bd5 Be5 23.de5 Nef2=) 22...Qg4 23.Bd5 Rc2 24.Rc2 Rc2 25.Qc2 Nf6 26.Bf3 Qh4 (26...Qe6 27.e4+–) 27.Qc8 Bf8 28.Qd8 (28.Qd8 Qg5 29.g3+–) 1–0. Fournier,Frederic – mek (1660), Active, 2006.

5.Bb5 c6 6.Be2 Qb6 =.

5.Nc3 e5!? 6.a3 Bg7 =.

5.Nc3 Bg7 6.Nd5+/– 0–0 (6...Nd5 7.Bg7 Pinning (7.Bg7 Deflection; 7.Bg7 Clearance)) 7.Nf6 Nf6 8.Be2 Bd7 9.c4 Re8 10.d4 c6 11.a4 a6 12.Ne5 Bf5 13.0–0 Qc7 14.Rc1 Nd7 15.Nd7 Qd7 16.Bf3 h5 17.h3 Rad8 18.Qb3 e5 19.e4 Be6 (19...Bh3 20.gh3 Qh3 21.d5+–) 20.d5 (20.de5?! Qc7+–) 20...cd5 21.cd5 (21.ed5?! Bf5+–) 21...Bh3 22.gh3 Qh3 23.Rc3 Rc8 24.Bg2 Rc3 25.Qc3 (25.Bh3?? Rb3 26.Bc1 Rh3–+; 25.Bc3?! Qg4+–) 25...Qd7 26.Bh3 (26.a5!? Rc8 27.Qb3 Qg4+–) 26...Qa4 27.d6 Rd8 28.Qc7 Qe8 29.d7 Qe7 30.Rd1 Bf6 (30...b5 31.Qb6+–) 31.Qb7 1–0. kupovgeorge (1845) – bblchess (1625), gameknot.com, 2014.

5.c4 c6 6.Nc3 e6 7.cd5 (7.c5 Bg7=) 7...cd5 (7...ed5 8.a3=) 8.Qb3 (8.Qa4 Be7+=) 8...Bg7 (8...a5 9.a3+=) 9.Rc1+/– 0–0 10.a4 (10.Be2 a5+=) 10...a5 11.Nb5 (11.Bb5 ab4 12.Qb4 Nb8+=) 11...Ra6 (11...ab4 12.Qb4 b6 13.d4+=) 12.ba5 (12.Bd3 Ne4 13.0–0 Bf6+/–) 12...Qa5+= 13.Ba3 Ne4?? (better is 13...Rc6 14.Rc6 bc6+=) 14.Bf8+– Bf8 15.Rc8 Rc6 (15...Ndc5 16.Qb2 Qa4 17.g3+–) 16.Rc6 bc6 17.Nc3 (17.Nbd4 Qa8+–) 17...Bb4 (17...Ndc5 18.Qc2 Nc3 19.Qc3 (19.dc3?! Na4 20.Bd3 Nc3+–) 19...Qa4 20.Be2+–) 18.Nb1 Ndc5 (18...Ndf6 19.Be2+–) 19.Qc2 Na4 20.Bd3 Nac5 21.0–0 (21.Be2 f6+–) 21...Nd3 22.Qd3 c5 23.Qc2 h5 (23...c4 24.Rd1+–) 24.d3 Nd6 Black prepares the advance c4 25.Nbd2 Qd8 (25...Nb5 26.Rc1+–) 26.Rb1 (26.Ne5 Qe8+–) 26...g5 (26...Nb5 27.Rb2+–) 27.d4 Bd2 28.Nd2 (28.Qd2 c4+–) 28...c4 29.e4 (29.Nf3 Kg7+–) 29...Qa5 (29...Qc8 30.e5 Nf5 31.Qc3+–) 30.ed5 ed5 (30...Qd5 31.Rb8 Kg7 32.Qc3+–) 31.Nf3 (31.Nf1 Kg7+–) 31...Ne4 (31...Qd8 32.Ra1 Qf6 33.Ra5+–) 32.h4 g4 (32...gh4 33.Nh4 Qd8 34.Nf3+–) 33.Ng5 Qd2 (33...Qc3 34.Qa4 Kg7 35.Qe8 Ng5 36.hg5+–) 34.Qd2 Nd2 35.Rb8 Kg7 36.Rb7 Kg6 (36...Nb3 37.Rf7 Kg6 38.Kf1 Nd4 39.Rd7+–) 37.Rf7 c3 38.Re7 (better is 38.Rc7 Nc4 39.Re7+–) 38...c2+= 39.Re1 Nb3 40.Ne6 c1Q (40...Kf5 41.Kf1 c1Q 42.Rc1 Nc1 43.Nc5+=) 41.Rc1 Nc1 42.Nf4 Kf5 43.Nh5 Ne2 44.Kf1 Nd4 45.Ng3 Kg6 (45...Ke5 46.Ne2 Nb3 47.Ke1+/–) 46.Ne2 Ne6 47.Ke1 Kh5? (better is 47...Kf5+/–) 48.g3+– Kg6 (48...d4+–) 49.Kd2?? (better is 49.Nf4 Nf4 50.gf4+–) 49...Kf5+/– 50.Ke3 (50.Kd3 Nc5 51.Ke3 Ne4+–) 50...Ke5 Black intends d4 51.f4 gf3 (51...Kf6 52.Kd3 Kg6 53.Nd4+/–) 52.Kf3 d4 (52...Nc5 53.Nf4+/–) 53.Nf4 Nf4?? (better is 53...Nc5+/–) 54.gf4+– Kf5 55.h5 d3 56.Ke3 d2 57.Kd2 1–0. De Visser,Arno – Plantfeber, 1988.

5.c4 c6 6.cd5 cd5 7.Nc3 Nb6 8.Rc1 Bd7 9.a4 a5 (9...Rc8 10.Ne5 Bg7 11.Nd7 Nfd7 12.a5+=) 10.Nb5+/– Nc4 11.Bc4 dc4 12.Rc4 Bb5 13.ab5 Bg7 14.ba5 Ra5 15.0–0 0–0 16.Bf6 Bf6 17.Qb3 Qd5 18.Rb1 Kg7 19.h3 Rd8 20.Qb4 (20.d4 e6+/–) 20...Ra2 Exerts pressure on the backward pawn 21.e4 Qd6 22.d4 Qb4 23.Rbb4 e6 24.Rc7 Rb8 25.Ne5 Be5 26.de5 Rd2 27.Rb3 Rd1 28.Kh2 Rd4 29.Rf3 Rf8 30.Rb7 (30.Rf6!? Re4 31.Re6 b6+–) 30...Re4 31.Rb3 Re5 32.b6 Rd5 33.Rc7 Rb8 34.b7 Rdd8 35.Rbc3 Rf8 36.Kg3 h6 37.Kf4 Rg8 38.Ke5 Rgd8 39.Rf3 Rf8 40.Kd6 Rfd8 41.Kc6 Rf8 42.Kb6 g5 (42...e5 43.Ka7 Rbd8 44.Rb3+–) 43.Rc8 (43.Rc8 Rfc8 44.g4–+) 1–0. Gimeno Higueras,Roberto (2195) – Molina Ballester,Sergio (2000), Valencia ESP, 7th Open, 2014.

5.c4 c6 6.cd5 cd5 7.Nc3 e6 8.a3 +=.

5.c4 c6 6.cd5+= cd5 7.Nc3 Bg7 8.Nd5+/– 0–0 9.Nf6 Nf6 10.Bc4 Bg4 11.Rc1 Rc8 12.d4 a6 13.h3 Bf3 (13...Bf5 14.Ne5+/–) 14.Qf3 b5 15.Bb3 Rc1 16.Bc1 Qc7 (16...Qd6 17.Bd2+/–) 17.0–0 Rc8 (17...Qd6 18.Bd2+/–) 18.Bb2+– Qd6 (better is 18...Qb8+–) 19.e4 Qc6?! (19...Qb4 20.e5 Qa5+–) 20.Rc1 Qb7 21.Rc8 Qc8 22.e5 Nd7 (22...h6 23.Qf4+–) 23.Qf7 Kh8 24.Qe7 Nf8 (24...h5+–) 25.Qf7 Qf5 26.Qg8 1–0. lucya (2150) – lionking (1705), GameColony.com, 2002.

5.c4 e6 6.Qb3 Bg7 (6...a5 7.cd5 ed5 8.Nc3=) 7.Nc3 c6 8.Be2 (8.d4 0–0+=) 8...0–0 (8...dc4 9.Bc4 b5 10.Be6 fe6 11.Qe6 Qe7 12.Qc6=) 9.0–0 (9.d4 a5+=) 9...dc4= 10.Bc4 Nb6 11.Be2 Nbd5 12.Rac1 Qb6 (12...a5 13.b5+=) 13.a3 (13.Nd5 ed5 14.Bd4 Qd8+=) 13...Nc3+/– 14.Bc3 White gets the initiative 14...a5 15.Bd4 (15.Qb2 Ne8+/–) 15...Qd8+= 16.b5 Bd7 17.Ne5 Rc8 (17...cb5 18.Qb2 Ne8 19.Bc5 Be5 20.Qe5+/–) 18.Qb2 Nd5 19.Nc6 Bd4 20.Nd4 Qf6 21.Qb3 (21.Bf3 b6+–) 21...Nb6 (21...Nf4 22.Bf3 Rc1 23.Rc1+/–) 22.Nf3 (22.f4 Nd5 23.Bf3 Rc1 24.Rc1 Nf4+/–) 22...e5+/– 23.d4 (23.Qb2 Bg4+/–) 23...ed4 (23...Be6 24.Qb2 e4 25.Nd2+/–) 24.Nd4 Be6 25.Ne6 (25.Qd3 Bd5+/–) 25...fe6 26.Bf3 Rc1 27.Rc1 Nd7 (27...Rf7 28.Qc3 Qc3 29.Rc3+–) 28.Qa2+– (28.Bb7?? Qf2 29.Kh1 Qf1 30.Rf1 Rf1) 28...b6 29.Rc6 Nc5 (29...Kh8 30.Bd5+–) 30.h3 (30.Rb6 Qc3 31.h3 Rc8+–) 30...Rd8 (30...Rb8 31.Bg4+–) 31.Bg4 (31.Rb6 Qc3 32.Rc6 Kg7+–) 31...Qc3 (31...Kg7 32.Rb6 (32.Be6 Rd1 33.Kh2 Qe5 34.g3 Qe4–+) 32...Qc3 33.Rc6+– (33.Be6 Rd1 34.Kh2 Qe5 35.f4 Qe3 36.Qb2 Kh6–+)) 32.Be6 (32.Qe6! Kf8 33.Qf6 Qf6 34.Rf6 Ke7 35.Rb6 Rd2+–) 32...Kg7 33.Bg4 (33.Rb6 Rd1 34.Kh2 Qe5 35.f4 Qe3–+) 33...Qe1 (33...Rf8 34.Qd5+–) 34.Kh2 Rf8 (34...Qc3+–) 35.Rc7 Kh6 36.Rf7 (better is 36.Qb2!? Qf2 37.Qg7 Kg5+–) 36...Rf7 37.Qf7 Do you see the mate threat? 37...Qc3 38.Qf8 Qg7 39.Qf4 (39.Qd6 a4+–) 39...g5 40.Qd6 Qg6 41.Qf8 Qg7 42.Qg7 (42.Qd8!? Qg6+–) 42...Kg7 43.Bf5 h6 (43...Na4 44.Kg3+–) 44.Kg3 (44.f4 Na4 45.Bd3 Nb2+–) 44...Kf6 (44...Na4 45.Bd3+–) 45.Bc2 Nb7 (45...Nd7 46.f4+–) 46.h4 (46.Kg4 Nd6 47.a4 Ne8+–) 46...Nd6 47.hg5 hg5 48.Bd3 Nf7 (48...Nb7 49.Kg4+–) 49.f4 Ke7 (49...Nd8 50.Kf3+–) 50.Kg4 Kf6 (50...gf4 51.ef4 Nd6 52.Kh5+–) 51.g3 Nh6 52.Kf3 (52.Kh5 Nf7+–) 52...Nf7 (52...g4 53.Ke2+–) 53.e4 Ke7 (53...gf4 54.gf4 Ke7 55.e5+–) 54.e5 gf4 55.gf4 Nd8 (55...Kd7 56.Ke4 Kc7 57.Kd5+–) 56.f5 Nb7 57.Kf4 Nc5 58.Bc2 (58.f6 Kf7 59.Bf5 Nb3+–) 58...Nd7 (58...Kd7 59.f6 Ne6 60.Kg4+–) 59.f6 (better is 59.Ke4+–) 59...Kf8 (59...Nf6 60.ef6 Kf6+–) 60.Kf5 a4 61.Ba4 (61.e6 Ke8 62.f7 Kd8 63.ed7 Ke7 64.f8Q Kd7 65.Ke5 Kc7 66.Qe7 Kb8 67.Qd8 Kb7 68.Be4 Ka7 69.Qc7) 61...Nc5 62.Bc2 Nd7 63.e6 Nc5 64.e7 Ke8 65.Kg6 Nd7 66.Bb3 Ne5 67.Kg7 1–0. Glaria,Salvador (1865) – Martin Barbero,Roberto (1975), Cto Autonomico Equipos, 2006.

5.c4 e6 6.c5 Bg7 7.Be2 0–0 (7...Qe7 8.d4+=) 8.0–0+= c6 9.a4 (9.d4 a5 10.Qb3 ab4 11.Qb4 Qe7=) 9...a6 (9...a5 10.Qb3=) 10.a5+= Re8 (10...Qe7 11.d4+=) 11.d4 Qc7 12.Nbd2 Re7 (12...Ng4 13.Qc2+/–) 13.Qc2 h6 (13...Rb8 14.Rad1+/–) 14.Bd3 (14.Rad1 g5+/–) 14...Nf8 (14...Rb8 15.Nb3+/–) 15.Ne5 Kh7 (15...N8d7 16.Nd7 Nd7 17.Qd1=) 16.f4 (16.Ndf3 Kg8+/–) 16...N6d7 (16...Rb8 17.Ndf3+/–) 17.Rf2 (17.Rab1 Nf6+/–) 17...f5 (17...Nf6 18.Rb1+/–) 18.h3 (18.Be2 Nf6+/–) 18...Nf6 19.g4 (19.Be2 Re8+/–) 19...Ne4 20.Rg2 Bd7 (20...Rb8+/–) 21.gf5 (21.Be2!?+/–) 21...ef5+= 22.Ndf3 (22.Kh2 Rae8+=) 22...Be8 (22...Rae8 23.Nh4 Re6 24.Be4 fe4 25.Qf2=) 23.h4 (23.Kh2 Nd7+=) 23...Nf6 24.Qf2 Ne4 (24...Bd7 25.Nd7 Qd7 26.Ne5+=) 25.Qe2 Bf6 (25...Rd8 26.h5 gh5 27.Nh4+=) 26.Rh2 (26.h5!?+=) 26...Rg7 27.Qg2 Qe7 (27...Bd7 28.Qh3=) 28.Qh3 Rc8 (28...Bd7 29.Rg2=) 29.Kh1 (29.Ng5 Kh8 30.Ne4 de4 31.Be4 Bd7+/–) 29...Ne6 (29...Bd7 30.Rg1+=) 30.Rg1 Bf7? (30...Kh8!?+=) 31.Nf7 (31.h5 gh5 32.Qf5 Kg8 33.Rg7 Bg7 34.Qf7 Qf7 35.Nf7 Kf7 36.Be4 de4+–) 31...Qf7 32.Ng5 (better is 32.h5!? Rcg8 33.hg6 Rg6 34.Qf5+–) 32...N4g5?? (better is 32...Bg5 33.hg5 h5+=) 33.hg5+– (33.hg5 Bg5 34.Rg5+– (34.fg5?! h5+–); 33.fg5?! Be7 34.h5 Ng5 35.hg6 Rg6 36.Qf5 Qf5 37.Bf5 Rf8 38.Bg6 Kg6+/–) 1–0. Kucharkowski,Jens – Enderlein, Freital, 1982.

5.c4 e6 6.cd5 ed5 7.Nc3 =.

5.Be2 Bg7 6.0–0 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.Be2 0–0 6.0–0 Nbd7).

5.Be2 Bg7 6.c4 dc4 7.Bc4 0–0 8.0–0 a6 9.d4 b5 10.Bb3 Bb7 11.Nbd2 Re8 12.Re1 e6 13.Rc1 Rc8 14.h3 c6 15.e4+= a5 16.a3 ab4 17.ab4 Nb6 18.Ne5 Nfd7 19.Nd3 e5 20.Nf3 ed4 21.Bd4 Bd4 22.Nd4 Nf6 23.Nc5 Qe7 24.Qf3 Ba8 25.Qe3 Nbd7+= 26.f3 Nc5 27.bc5 Nd7 28.Qc3 Ne5 29.f4+/– Nd7 30.Nf3 Bb7 31.Ng5 Rf8 32.h4 Ra8 33.h5+/– Nf6 34.hg6 hg6 35.Qh3 Nh5 36.g4 Bc8 37.Qh4 Ra3+= 38.Re3 b4?? 39.gh5+– Be6 40.hg6 fg6 41.Be6 Kg7 42.Qh7 Kf6 43.e5 1–0. pumpkin (2015) – rogeliovargas (2200), net–chess.com, 2003.

5.c4 dc4

6.Bc4 Nb6 7.Bb3=.

6.Bc4 Bg7??

7.0–0 0–0 8.Nc3 (8.d4 Nb6 9.Bd3 Nbd5=) 8...c5 (8...Nb6 9.Be2=) 9.bc5+= Nc5 10.d4 Nce4 (10...Be6 11.Be6 (worse is 11.dc5 Bc4 12.Re1 Qd1 13.Rad1 Rac8+=) 11...Ne6 12.Rc1+=) 11.h3 (11.Ne4 Ne4 12.Qb3 Bg4+=) 11...Qa5 (11...Nd6 12.Bd3+=) 12.Qb3 (12.Ne4 Ne4 13.Rc1 Rd8+=) 12...Qh5 (12...Nd6 13.Nd5+=) 13.Ne2 (13.Rac1 Nc3 14.Bc3 Ne4+=) 13...g5 (better is 13...Nd6+=) 14.Ne5 f7 draws heavy fire (better is 14.Ba3!? Bh3 15.gh3 Qf3 16.Be7=) 14...Nd2+= 15.Ng3 If White now only could play Qb4... 15...Nb3 16.Nh5 Na1 17.Ng7 Kg7 (better is 17...Nc2!? 18.Rc1 Nb4–+ (18...Kg7?! 19.Rc2 Bf5 20.Rc1–/+)) 18.Ra1 h5 (18...a6 19.a4+=) 19.Ba3 Ng8 20.Bd5 (20.Rb1 f6 21.Nd3 Re8+=) 20...Rb8 (20...f6 21.Nd3+=) 21.Rc1 f6 22.Nd3 Re8 23.Rc7 Kg6 24.Bg8 (24.Kf1 h4=) 24...Rg8+= 25.Re7 The passed pawn on d4 will quickly become a dangerous weapon 25...Rg7 (25...Rd8 26.Bb2+=) 26.Re8 (26.Rg7 Kg7 27.Bd6 Ra8=) 26...b6 (26...Rd7 27.Nc5 Rd6 28.Kh2+=) 27.f4= Kh7 (27...Rd7 28.g4 hg4 29.hg4=) 28.fg5+= Rg5 29.Nf4 (29.e4+=) 29...Rg8 (better is 29...Ra5!? 30.Bd6 Ra8=) 30.Rg8+/– Kg8 31.Nh5 Kf7 32.e4 f5 (32...Bd7 33.Kh2+/–) 33.e5 (33.Bd6 Rb7 34.e5 Be6+–) 33...Be6+= 34.Nf4 (34.Bd6 Rc8 35.Ng3 Rc2+=) 34...Ba2 35.d5 b5 36.e6 (36.Bd6 Rg8+=) 36...Ke8 (36...Kf6 37.Bb2 Ke7 38.Ng6 Ke8 39.Nf4=) 37.d6 (37.Bb4 Ra8+=) 37...b4 (37...a5 38.Bc5 b4 39.d7 Kd8 40.Ba7+=) 38.Bb2 Bc4 (38...Rd8!? 39.Be5 Bc4+=) 39.Bf6+/– Be6 40.Ne6 Kf7 (40...Kd7 41.Nc5 Kd6 42.Be5 Ke5 43.Nd7 Ke4 44.Nc5 Kd4–+) 41.Bd4?? (better is 41.Nc5+/–) 41...Ke6–+ 42.Ba7 Rc8 43.Bd4 Kd6 44.Kf2 (44.h4 Kd5 45.Bf6 Rc2–+) 44...b3 45.Kf3 (45.g4 fg4 46.hg4 b2 47.Bb2 Rc2 48.Ke3 Rb2–+) 45...Rc2 46.g4 (46.h4 b2 47.Bb2 Rb2–+) 46...fg4 47.Kg4 (47.hg4 b2 48.Bb2 Rb2 49.g5–+) 47...Rc4 (47...Rc4 48.Kf5 Rd4–+) 0–1. Nemec,Zdenek – Prusik,Jan, Club match, 1986.

7.Qb3 0–0 8.Ng5 e6 9.Be6+= Ne4?? 10.Bf7+– (10.Ne4?! fe6 11.Qe6 Rf7 12.Bg7 Kg7+–) 10...Kh8 11.Bg7 Kg7 12.Ne6 (12.Ne6 Kh6 13.Nd8 Rd8 14.Nc3+–; 12.Ne4?! Rf7 13.Qc3 Nf6+–) 1–0. Fredek (2090) – Sebl Jan, Freundschaftspartie, 5m + 0s, 2005.

7.Qb3 0–0 8.Ng5 e6 9.Be6 fe6? 10.Ne6+– (worse is 10.Qe6 Kh8 11.Nf7 Rf7 12.Qf7 Nf8+=) 10...Qe7 11.Nc7 Kh8 12.Na8 Ne5 13.Be5 Qe5 14.Qc3 Qf5 15.d4 Bd7 16.Qc5 Nd5 17.f3?? (better is 17.0–0 Ne3 18.Qf5 Nf5 19.Nc7+=) 17...Qd3–+ 18.Nd2 Bb5 19.0–0–0 (19.Qb5 Qb5 20.Nc7 Nc7 21.Rc1–+) 19...Qa3 20.Kb1 Bd3 21.Ka1 Nb4 22.Qc1 (22.Qb4 Qb4 23.Nc4 Bc4 24.Rb1 Qc3 25.Rb2 Qe3 26.Rhb1 Bd4 27.h3 Qa3 28.Nc7 Qa2) 22...Qa2 0–1. Leon Manas,Jose Francisco (1720) – Saad Addin Quintana (1880), Las Palmas ESP, 2011.

7.Qb3 0–0 8.Ng5 e6 9.Be6 Qe7 +=.

7.Qb3 0–0 8.Ng5 Qe8 9.d4 =.

7.Bf7 Kf7? 8.Ng5 (8...Ke8 9.Ne6+–) 1–0. Senkyr,V (2160) – Simon,Petr (1775), G–TEAM Open Novy Bor CZE, 2011.

7.Bf7 Kf7 8.Ng5 Kg8 9.Qb3 Nd5 10.Qd5 e6 11.Qe6 Kf8 12.Qf7.

7.Bf7!+– (7...Kf8 8.Qb3+–) 1–0. Vokac,Marek (2455) – Bazant,Petr Sr (2295), CZE–ch Turnov, 1996.

5.c4 Bg7

6.Qb3 0–0 A) 7.d4 dc4 (7...a5 8.ba5 Ra5 9.Nc3 Nb6 10.c5 Na8 11.Bb5 Bf5 12.0–0 e6+=; 7...c6 8.cd5 Nd5 9.Bd3 N7b6 10.0–0 Be6 11.Ng5 Bg4 12.Ne4 Bf5=; 7...a6 8.cd5 Nb6 9.Nc3 Nfd5 10.Nd5 Nd5 11.e4 Nf4 12.Ne5 Qd6+=) 8.Bc4 Nb6 9.Bd3 Be6 10.Qc2 Nbd5 11.a3 a5 12.b5 Rc8=; B) 7.Bd4 Nb6 (7...a5 8.cd5 Nb6 9.Bb6 cb6 10.d4 Nd5 11.a3 Bg4 12.Nbd2 a4=; 7...e6 8.cd5 ed5 9.Nc3 c6 10.Be2 b6 11.0–0 c5 12.Bf6 Nf6=; 7...dc4 8.Bc4 a5 9.b5 a4 10.Qc2 c6 11.Nc3 c5 12.Bf6 Nf6=) 8.c5 Nbd7 9.Nc3 e6 10.b5 c6 11.Qa4 Qc7 12.Bf6 Bf6+=; C) 7.cd5 Nb6 8.Nc3 Nfd5 9.Nd5 Qd5 10.Qd5 Nd5 11.Bg7 Kg7 12.a3 Bf5+=.

6.Qb3 a5 A) 7.cd5 ab4 8.Bd4 0–0 9.Bc4 Nb8 10.Qb4 c6 11.dc6 Nc6 12.Qb5 Nd4=; B) 7.d4 0–0 (7...ab4 8.Qb4 dc4 9.Bc4 Nb6 10.Bd3 0–0 11.0–0 Be6 12.Ba3 Nfd5=; 7...c6 8.Bd3 ab4 9.Qb4 dc4 10.Qc4 Nb6 11.Qc2 Nbd5 12.a3 0–0=; 7...a4 8.Qa3 0–0 9.Nc3 dc4 10.Bc4 Nb6 11.Be2 Bg4 12.b5 Re8=) 8.ba5 Ra5 9.Bc3 Ra7 10.cd5 Nb6 11.Bd3 Nfd5 12.0–0 Qd6=; C) 7.Bd4 dc4 (7...e6 8.b5 0–0 9.Nc3 c5 10.bc6 bc6 11.cd5 ed5 12.Na4 Re8=; 7...ab4 8.cd5 0–0 9.Bc4 Nb8 10.Qb4 c6 11.dc6 Nc6 12.Qb5 Nd4=; 7...0–0 8.cd5 Nb6 9.Bb6 cb6 10.d4 Nd5 11.a3 Bg4 12.Nbd2 a4=) 8.Bc4 0–0 9.b5 a4 10.Qc2 c6 11.Nc3 c5 12.Bf6 Nf6=; D) 7.ba5 dc4 (7...e6 8.Bc3 0–0 9.d4 c5 10.Nbd2 cd4 11.ed4 Nb8 12.Rc1 Ne4=; 7...0–0 8.cd5 Ra5 9.Nc3 Nd5 10.Nd5 Nc5 11.Qb4 Bb2 12.Ne7 Qe7+=; 7...Ra5 8.cd5 Rd5 9.d4 Rd6 10.Be2 0–0 11.0–0 Nb6 12.Ba3 Be6+=) 8.Bc4 0–0 9.d4 Ra5 10.Bc3 Rh5 11.Be2 Nb6 12.Ne5 Be6=.

6.Qb3 Nb6 7.c5 Nbd7 8.Nc3 c6 9.d4 0–0 10.Bd3 Re8 11.0–0 b6 12.cb6 Qb6 +=.

6.Qb3 e6 A) 7.Nc3 0–0 (7...Nb6 8.c5 Nbd7 9.Be2 a6 10.0–0 a5 11.Qa4 0–0 12.d4 Re8+=; 7...dc4 8.Bc4 0–0 9.d4 Nb6 10.Bd3 a5 11.ba5 Ra5 12.0–0 Nbd5+=; 7...c6 8.d4 0–0 9.Bd3 dc4 10.Qc4 Nb6 11.Qc5 Nbd7 12.Qg5 Nd5+=) 8.cd5 Nd5 9.Nd5 Bb2 10.Nc7 Ba1 11.Na8 b6 12.Qb1 Bg7=; B) 7.cd5 ed5 8.Nc3 Nb6 9.Be2 0–0 10.0–0 Re8 11.Rac1 Qe7 12.a4 a5=; C) 7.Be2 0–0 (7...a5 8.cd5 ed5 9.Nc3 Nb6 10.0–0 0–0 11.ba5 Ra5 12.Ba3 Re8=; 7...dc4 8.Bc4 Nb6 9.Bf6 Qf6 10.d4 0–0 11.Nbd2 a5 12.ba5 Ra5=) 8.0–0 dc4 9.Qc4 Nb6 10.Qc2 Nbd5 11.b5 a6 12.ba6 b6=; D) 7.d4 a5 (7...0–0 8.Bd3 a5 9.ba5 c5 10.0–0 Qa5 11.Bc3 Qa4 12.Nbd2 b6=; 7...Nb6 8.c5 Nbd7 9.Bd3 a5 10.Qa4 0–0 11.0–0 e5 12.de5 Ng4+=; 7...h6 8.Bd3 a5 9.ba5 Ra5 10.0–0 dc4 11.Bc4 Nb6 12.Bd3 Nfd5+=) 8.ba5 0–0 9.Bd3 c5 10.0–0 Qa5 11.Bc3 Qa4 12.Nbd2 b6=.

6.Nc3 0–0 7.Nd5 Nd5 8.Bg7 Ne3 9.de3 Kg7 10.Be2 =.

6.Nc3 Nb6 A) 7.cd5 Nfd5 (7...0–0 8.Qb3 Nfd5 9.Nd5 Nd5 10.Bg7 Kg7 11.Bc4 Nb6 12.0–0 Bg4+=) 8.Qb3 Nf6 9.d4 Be6 10.Qc2 0–0 11.Bd3 Bc4 12.0–0 Qd6=; B) 7.c5 Nc4 8.Bc4 dc4 9.Qa4 Bd7 10.b5 Be6 11.b6 c6 12.ba7 Nd7=; C) 7.d3 0–0 (7...a5 8.b5 dc4 9.dc4 Be6 10.c5 Nc4 11.Bc4 Bc4 12.Ne5 Be6+=; 7...dc4 8.dc4 0–0 9.c5 Nbd7 10.Qa4 Nd5 11.Qb3 N5f6 12.Rd1 a5+=; 7...Be6 8.c5 Nbd7 9.Be2 0–0 10.d4 h6 11.0–0 Bg4 12.b5 Bf5+=) 8.c5 Nbd7 9.Be2 c6 10.d4 Re8 11.0–0 Qc7 12.b5 e5=; D) 7.Nd5 Nbd5 8.cd5 Qd5 9.Be5 c6 10.d4 0–0 11.Qc1 Bg4 12.Be2 a5=.

6.Nc3 dc4 7.Bc4 Nb6 (7...0–0 8.d4 Nb6 9.Be2 a5 10.b5 a4 11.a3 Bf5 12.Rc1 Qd6=) 8.Bb3 0–0 9.d4 Qd6 10.a3 Be6 11.e4 Bb3 12.Qb3 Qf4 =.

6.Nc3 c6 A) 7.cd5 Nd5 8.Qb3 N7f6 9.Nd5 cd5 10.Bb5 Bd7 11.Bd7 Qd7 12.Ne5 Qb5=; B) 7.Qb3 dc4 (7...Nb6 8.c5 Nbd7 9.Be2 e5 10.0–0 0–0 11.d4 e4 12.Nd2 b6=; 7...e6 8.d4 0–0 9.Bd3 dc4 10.Qc4 Nb6 11.Qc5 Nbd7 12.Qg5 Nd5+=) 8.Bc4 0–0 9.0–0 Nb6 10.Be2 Qd6 11.a3 Be6 12.Qc2 a5=; C) 7.b5 e5 (7...0–0 8.bc6 bc6 9.Rb1 Rb8 10.cd5 Nd5 11.Qc1 N7f6 12.e4 Rb2=; 7...cb5 8.Nd5 bc4 9.Bc4 e5 10.Nf6 Qf6 11.d4 Qe7 12.Qa4 e4+=; 7...dc4 8.Bc4 Nb6 9.bc6 Nc4 10.cb7 Bb7 11.Qa4 Qd7 12.Qc4 Rc8=) 8.bc6 bc6 9.cd5 Nd5 10.Rb1 Rb8 11.Ne4 Qe7 12.Qa4 f5=; D) 7.d4 0–0 (7...dc4 8.Bc4 Nb6 9.Bd3 Nbd5 10.b5 Nc3 11.Bc3 cb5 12.Bb5 Bd7+=; 7...Qb6 8.a3 0–0 9.Bd3 dc4 10.Bc4 Qd8 11.0–0 Nb6 12.Bd3 Bg4+=; 7...a5 8.b5 0–0 9.Qb3 dc4 10.Bc4 Nb6 11.bc6 a4 12.Qb4 a3+=) 8.cd5 cd5 9.Bd3 Nb6 10.Rc1 Bg4 11.h3 Be6 12.0–0 Nc4=.

6.Nc3 e6 A) 7.Rc1 0–0 (7...Nb6 8.c5 Nbd7 9.d4 0–0 10.Bd3 Re8 11.0–0 e5 12.Ne5 Ne5+=; 7...c6 8.d4 0–0 9.b5 cb5 10.cb5 Qa5 11.Bd3 a6 12.0–0 b6+=; 7...dc4 8.Bc4 0–0 9.b5 Nb6 10.Be2 Qd6 11.d4 Nfd5 12.0–0 Rd8+=) 8.d4 a6 9.a3 Re8 10.Bd3 Nb6 11.c5 Nbd7 12.Qb3 e5=; B) 7.Qb3 0–0 (7...dc4 8.Bc4 0–0 9.d4 Nb6 10.Bd3 Nfd5 11.0–0 a5 12.a3 ab4+=; 7...c6 8.d4 0–0 9.Bd3 a5 10.0–0 dc4 11.Qc4 ab4 12.Qb4 c5=; 7...Nb6 8.c5 Nbd7 9.Be2 0–0 10.d4 h6 11.0–0 Qe7 12.b5 c6+=) 8.cd5 Nd5 9.Nd5 Bb2 10.Nc7 Ba1 11.Na8 b6 12.Qb1 Bg7=; C) 7.d4 0–0 (7...Qe7 8.Qb3 a5 9.b5 Qb4 10.Ba3 Qb3 11.ab3 Ne4 12.Rc1 Nc3+=; 7...a5 8.b5 0–0 9.Be2 c5 10.bc6 bc6 11.0–0 Ba6 12.cd5 cd5=; 7...a6 8.Be2 dc4 9.Bc4 Nb6 10.Bd3 Nfd5 11.a3 0–0 12.0–0 Bd7+=) 8.Rc1 a6 9.a3 Nb6 10.c5 Nbd7 11.Bd3 Re8 12.Qb3 e5=; D) 7.Qc2 c6 (7...0–0 8.d4 h6 9.Rc1 Nb6 10.c5 Nbd7 11.Bd3 a5 12.b5 Re8+/–; 7...Nb6 8.c5 Nbd7 9.d4 0–0 10.Bd3 a6 11.0–0 Qe7 12.a4 a5+=; 7...dc4 8.Bc4 0–0 9.0–0 Qe7 10.a3 Nb6 11.Bb3 e5 12.Ne4 Bf5+=) 8.d4 0–0 9.Rc1 Nb6 10.c5 Nbd7 11.Bd3 Re8 12.0–0 e5+=.

6.d4 0–0 A) 7.Nbd2 a5 (7...dc4 8.Nc4 a6 9.Bd3 Nd5 10.Qb3 N7f6 11.a4 Be6 12.Ng5 Bg4+=; 7...c6 8.cd5 Nd5 9.a3 N7f6 10.Rc1 a5 11.b5 Qb6 12.a4 cb5=; 7...Nb6 8.c5 Nbd7 9.Bd3 h6 10.0–0 a5 11.b5 Nb8 12.Qa4 Bg4+/–) 8.ba5 Ra5 9.Be2 Nb6 10.Bc3 Ra7 11.c5 Na4 12.Bb4 Bf5=; B) 7.Qb3 a5 (7...dc4 8.Bc4 Nb6 9.Bd3 Bg4 10.Ne5 Be6 11.Qc2 Nfd5 12.a3 Nd7=; 7...Nb6 8.c5 Nbd7 9.Bd3 a5 10.ba5 Nb8 11.0–0 Nc6 12.Nc3 Na5+=; 7...c6 8.Nc3 dc4 9.Bc4 Nb6 10.Bd3 Be6 11.Qc2 Bc4 12.0–0 Bd3=) 8.ba5 Ra5 9.Bc3 Ra8 10.cd5 Nb6 11.Bd3 Nfd5 12.0–0 Bg4=; C) 7.Nc3 dc4 (7...c6 8.cd5 cd5 9.Bd3 Qb6 10.a3 a5 11.b5 Qe6 12.Rc1 Nb6+=; 7...a5 8.b5 dc4 9.Bc4 Nb6 10.Bb3 Bg4 11.0–0 Qd6 12.Rc1 Rfd8=; 7...Nb6 8.c5 Nbd7 9.Bd3 Re8 10.0–0 e5 11.de5 Ne5 12.Ne5 Re5+=) 8.Bc4 Nb6 9.Bb3 Qd6 10.a3 Be6 11.e4 Bb3 12.Qb3 Qf4=; D) 7.a3 a5 (7...c6 8.Nbd2 a5 9.b5 cb5 10.cd5 Nd5 11.Bb5 N7f6 12.Rc1 Bf5+=; 7...Rb8 8.cd5 Nd5 9.Bd3 N7f6 10.0–0 Bg4 11.h3 Be6 12.Qd2 Bf5+=; 7...Nb6 8.c5 Nbd7 9.Bd3 a5 10.Nc3 ab4 11.ab4 Ra1 12.Ba1 Nb8+=) 8.Nbd2 ab4 9.ab4 Ra1 10.Qa1 dc4 11.Qa5 c3 12.Bc3 Nb6=.

6.d4 a5 A) 7.ba5 c5 (7...0–0 8.cd5 Nd5 9.e4 N5f6 10.Bd3 Ra5 11.0–0 c6 12.Qc2 Qc7+=; 7...c6 8.Bd3 dc4 9.Bc4 Ra5 10.Bc3 Ra7 11.0–0 Nb6 12.Bd3 0–0=; 7...Ra5 8.cd5 Nb6 9.Qd2 Qd5 10.Nc3 Qd8 11.Bd3 Bf5 12.e4 Be6+=) 8.Bc3 0–0 9.dc5 Nc5 10.Nbd2 Bf5 11.cd5 Qd5 12.Nb3 Nd3=; B) 7.a3 dc4 (7...0–0 8.Nbd2 ab4 9.ab4 Ra1 10.Qa1 dc4 11.Nc4 c6 12.Qa3 h6=; 7...Nb6 8.c5 Nbd7 9.Bd3 0–0 10.Nc3 ab4 11.ab4 Ra1 12.Ba1 b6+=; 7...ab4 8.ab4 Ra1 9.Ba1 0–0 10.Nc3 dc4 11.Bc4 Nb6 12.Bd3 Nbd5=) 8.Bc4 Nb6 9.Bd3 ab4 10.ab4 Ra1 11.Ba1 Nbd5 12.Bc3 0–0=; C) 7.Nc3 Nb6 (7...ab4 8.Nd5 Nd5 9.cd5 Nf6 10.Bb5 Kf8 11.Qb3 Nd5 12.Bc4 c6=) 8.ba5 Nc4 9.Bc4 dc4 10.Qa4 c6 11.Qc4 Qa5 12.0–0 0–0=; D) 7.b5 0–0 (7...c6 8.Nc3 0–0 9.Qb3 dc4 10.Bc4 Nb6 11.bc6 a4 12.Qb4 a3+=; 7...a4 8.cd5 Nd5 9.e4 Nf4 10.Nc3 Nb6 11.Ne2 Ne6 12.Qc2 a3=; 7...dc4 8.Bc4 Nb6 9.Bd3 0–0 10.0–0 a4 11.Qc2 Nfd5 12.Ba3 Bg4+=) 8.Nc3 dc4 9.Bc4 Nb6 10.Bb3 Bg4 11.0–0 Qd6 12.Rc1 Rfd8=.

6.d4 Nb6 7.c5 Nbd7 8.Bd3 0–0 9.Nbd2 Re8 10.Rc1 e5 11.Ne5 Ne5 12.de5 Ng4 +=.

6.d4 c6 A) 7.Nbd2 dc4 (7...a5 8.b5 0–0 9.cd5 cd5 10.Bd3 Nb6 11.0–0 Qd6 12.Rc1 a4+=; 7...0–0 8.a3 a5 9.b5 cb5 10.cb5 Nb6 11.Bd3 Qe8 12.0–0 Bd7+=; 7...Qb6 8.a3 a5 9.c5 Qc7 10.b5 0–0 11.b6 Qd8 12.Bd3 e5+=) 8.Bc4 Nb6 9.Bd3 Nbd5 10.a3 Bf5 11.Bf5 gf5 12.Qc2 e6=; B) 7.Qb3 a5 (7...0–0 8.cd5 Nd5 9.Bd3 N7b6 10.0–0 Be6 11.Ng5 Bg4 12.Ne4 e5=; 7...Nb6 8.c5 Nbd7 9.Bd3 0–0 10.Nc3 Re8 11.0–0 b6 12.Qa4 Rb8+=) 8.Bd3 ab4 9.Qb4 dc4 10.Qc4 Nb6 11.Qc2 Nbd5 12.a3 0–0=; C) 7.a3 a5 (7...0–0 8.Nbd2 a5 9.b5 cb5 10.cd5 Nd5 11.Bb5 Nc7 12.Be2 b5+=) 8.b5 0–0 9.Nc3 dc4 10.bc6 Nb6 11.Ne5 bc6 12.Qf3 Rb8=; D) 7.Nc3 dc4 (7...0–0 8.cd5 cd5 9.Bd3 Nb6 10.Rc1 Bg4 11.h3 Bf3 12.Qf3 Rc8+=; 7...Qb6 8.Qb3 0–0 9.Rc1 e6 10.Be2 Re8 11.0–0 h6 12.b5 a6+=; 7...h6 8.cd5 cd5 9.Bd3 Qb6 10.a3 0–0 11.Rc1 a5 12.b5 Qe6+=) 8.Bc4 Nb6 9.Bd3 Nfd5 10.Nd5 Nd5 11.a3 0–0 12.0–0 Qd6+=.

6.cd5 0–0 7.Qb3 Nb6 8.Nc3 Nfd5 9.Nd5 Qd5 10.Qd5 Nd5 11.Bg7 Kg7 12.a3 Bf5 +=.

6.cd5 0–0 7.Qc2 Nd5 (7...a5 8.b5 Nd5 9.Bg7 Kg7 10.e4 N5b6 11.d4 f5 12.ef5 Rf5+=) 8.Bg7 Kg7 9.Qb2 (9.e4 N5f6 10.d4 Re8 11.Nc3 e5 12.Rd1 Qe7=) 9...Kg8 (9...N7f6 10.Bc4 Nb6 11.d3 Bf5 12.Nd4 Qd7=) 10.e4 (10.d4 N7f6 11.Bc4 a5 12.ba5 Ra5+=) 10...N5b6 (10...N5f6 11.Nc3 Nb6 12.h3 Be6=) 11.d4 a5 (11...f5 12.ef5 Rf5+=) 12.b5 (12.ba5 Ra5+=) 12...c5 (12...f5+=) 13.Nbd2 cd4 14.Qd4 Nf6 15.Qe5 Re8 16.Be2 Qd6 17.Qg5 e5 18.0–0 Kg7 19.h3 Nh5 20.Rfd1 Nf4 21.Bf1 h6 22.Qg3 Qf6 23.Nb3 Na4 24.Rac1 Be6 25.Rc7 Rac8 26.Rdc1 (26.Rb7 Bb3 27.ab3 Nc5–+) 26...Rc7 27.Rc7 Bb3 28.ab3 Qd6 29.Rc1 (worse is 29.Rb7 Nc5 30.Nh4 Qf6–+) 29...Qa3 30.Re1 Nh5 31.Qg4 Qb3 (better is 31...Nf6!? 32.Qg3 Qb3–/+) 32.Qd7= Qe6 33.Qb7 Qb6 34.Qc6 Re6 35.Qc2 Nc5 36.Bc4 Re7 37.Rd1 Nf4 38.Qb2 f6 39.Qa3 Rc7 40.Rd8 Nfe6 41.Be6 Ne6 42.Rd6 Qc5 43.Qc5 Nc5 (43...Rc5? 44.Re6 Rb5 45.Re7 Kf8 46.Ra7+–) 44.b6 (44.Nd2 a4 45.Rc6 Rc6 46.bc6 Ne6+=) 44...Rc8 (44...Ne4!? 45.bc7 Nd6–/+) 45.Nd2 Kf7 46.f3 Ke7 47.Rd5 Nb7 48.Kf1 a4 49.Rd3 Rc2 50.Ke2 Rb2 51.Ra3 Nc5 (51...Rb6?! 52.Ra4 Nd6 53.Ra7 Ke6 54.Rg7=) 52.Kd1 Rb6 53.Kc2 Rb4 54.Kc3 Rd4 55.Ra2 Kd7 56.Nc4 Kc6 57.Rb2 Rd3?? (better is 57...Nb3–+) 58.Kc2= Rb3 59.Na5 Kb5 60.Nb3 ab3 61.Rb3 Nb3 62.Kb3 ½–½. Abreu Suarez,Isauro (2055) – Rodriguez Vera,Gregorio (2135), Santa Cruz de Tenerife ESP, 2011.

6.cd5 0–0 Rg8 A) 7.Qb3 Nb6 (7...a6 8.Nc3 Nb6 9.Bc4 Nc4 10.Qc4 e6 11.de6 Be6 12.Qh4 Qe7+=) 8.Bf6 Bf6 9.Nc3 e6 10.Bc4 Nc4 11.Qc4 Bc3 12.de6 Bd2=; B) 7.Qa4 Nd5 (7...Kf8 8.Qb3 Nb6 9.Bf6 Bf6 10.Nc3 e6 11.de6 Be6 12.Qc2 Nd5+=) 8.Bg7 Rg7 9.d4 c6 10.Be2 g5 11.0–0 g4 12.Nfd2 e5+=.

6.cd5 a5 7.ba5 0–0 (7...Ra5 8.e4 0–0 9.Qc2 c5 10.dc6 Rc5 11.Nc3 Rc6 12.d4 Qa5+/–; 7...h6 8.a6 ba6 9.Bd4 0–0 10.Nc3 Bb7 11.e4 c5 12.dc6 Bc6+/–) 8.Qb3 Ra5 9.Nc3 Nd5 10.Nd5 Nc5 11.Qb4 Bb2 12.Ne7 Qe7 +=.

3.f4 c6

4.Nf3= Qc7 5.e3 f6 6.c4+/– e6 (6...dc4 7.Bc4 Nb6 8.Bb3+/–) 7.Nd4 Nb6 8.c5 Nc4 9.Bc4 dc4 10.0–0 Bd7 (10...Ne7 11.Na3 Nd5 12.Nc4+/–) 11.Qc2 0–0–0 12.Qc4 (12.a4 Ne7+–) 12...Re8 13.Nf3 Ne7 (13...h5 14.a4+/–) 14.Nc3 Nd5 15.Ne4 Rg8 (15...h5 16.Nh4+–) 16.a4 f5? (better is 16...a6+–) 17.Be5 Qd8 18.Neg5 Qe7 (18...Re7 19.Nh7 g5 20.Nhg5+–) 19.Bd6 Qf6 (19...Qd8 20.Nf7 Qf6 21.N3e5+–) 20.Nh7 Qf7 (20...Qh6 21.Nf8 Rgf8 22.Bf8 Rf8 23.b5+–) 21.Ne5 Qh5 22.Nf8 Rh8 (22...Ref8 23.Bf8 Rf8+–) 23.Nfd7 Qh2 24.Kf2 Qh4 (24...Rh3 25.Rg1 Qg3 26.Ke2+–) 25.Ke2 Qh5 (25...Qg3 26.b5 Rh2 27.Rg1 Rg2 28.Rg2 Qg2 29.Kd3 Qe4 30.Qe4 fe4 31.Kd4+–) 26.Kd3 Ne3 27.de3 Rd8 28.Nb6! 1–0. marre – qahh, internet live, 2010.

4.Nf3 Qc7 5.e3 Ngf6 6.Be2 e6 7.a3 Bd6 8.0–0 0–0 9.c4 b6 10.Nc3 e5 11.fe5 Ne5 12.Ne5 Be5 13.h3 d4 14.ed4 Bd4 15.Kh1 Re8 16.Bf3 Qg3 17.Bc6?? (better is 17.Ne2 Re2 18.Bd4+=) 17...Be5–+ 18.Kg1 (18.Rf4 Qf4 (18...Bf4 19.Kg1 Bh3 20.Qf3 Re1 21.Re1 Qe1 22.Qf1 Bh2 23.Kh2 Qf1 24.Ba8 Qf4 25.Kg1–+) 19.Qg1 Nh5–+) 18...Bh3 (18...Qh2 19.Kf2 Bd4 20.Kf3 Bh3 21.gh3 Qh3 22.Kf4 Qh4 23.Qg4 Qg4) 19.Qf3 (19.Rf4 Qf4 20.Qf3 Qh2 21.Kf1–+) 19...Qh2 20.Kf2 Bd4 21.Qe3 Ng4 22.Ke2 (22.Ke1 Ne3 23.de3 Bg2 24.Ne2 Qh4 25.Kd2 Be3 26.Kc3 Bc6 27.Rfd1–+) 22...Be3 23.de3 Ne3 (23...Bg2 24.Kd1 Ne3 25.Kc1 Bf1 26.Ne2 Qe2 27.Kb1 Qc2 28.Ka2 Bc4) 24.Rh1 (24.Ba8 Nc4 25.Kd3 Nb2 26.Kc2 Ra8–+) 24...Ng2 25.Be8 Re8 (25...Nf4 26.Kf3 Qg2 27.Kf4 Qf2 28.Ke5 Re8 29.Kd6 Qf6 30.Kc7 Qe7 31.Kc6 Qd7) 26.Kd3 (26.Kd2 Qf4 27.Kc2 Ne3 28.Kc1 Nf1 29.Kc2 Bf5 30.Kb3 Nd2 31.Ka4 Bc2 32.Kb5 Qc4) 26...Bf5 (26...Nf4 27.Kd4 Qd2) 27.Kd2 (27.Ne4 Be4 28.Ke2 Nf4 29.Ke3 Bh1 30.Be5 Re5 31.Kd4 Qb2) 27...Qf4 0–1. Villamil,Edison E – Palomino,Daniel F (1725), Bogota COL, McGregor Open, 2011.

4.Nf3= Ngf6 5.e3 +=.

3.f4 e5

4.fe5 Bb4 5.a3 Bf8 (5...Bc5 6.e6 Ndf6 7.ef7 Kf7 8.Nf3 Bd6 9.e3 Nh6; 5...Be7 6.e6 Ndf6 7.ef7 Kf7 8.Nf3 Ne4 9.d3 Nef6) A) 6.e3 Qh4 (6...Nh6 7.Nf3 Qe7 8.c4 Ng4 9.cd5 Nge5; 6...Qe7 7.Nf3 Nh6 8.c4 Ng4 9.Qa4 c6; 6...c6 7.Nf3 Nh6 8.Qc1 Qe7 9.d4 f6) 7.g3 Qe7 8.Nf3 c6 9.c4 dc4; B) 6.Nf3 c6 (6...Nh6 7.Nc3 Ng4 8.Nd5 Nde5 9.Ne5 Qd5; 6...Nb6 7.e3 c6 8.Be2 Na4 9.Bc1 b5; 6...f6 7.e3 fe5 8.Ne5 Ngf6 9.Nd7 Bd7) 7.e3 Nh6 8.Qc1 Qe7 9.d4 f6.

4.fe5 Bb4 5.e6 Ndf6 6.ef7 Kf7 7.e3 Nh6 8.Nf3 Nhg4 9.Nc3 Re8.

4.fe5 Bb4 5.Nf3 f6 (5...Nh6 6.e3 (6.c4 Nb6 7.cd5 Qd5 8.a3 Be7 9.Nc3 Qa5) 6...Ng4 (6...Nf5 7.Nc3 Nc5 8.Qe2 0–0 9.a3 Bc3) 7.c3 Be7 8.Qa4 h5 9.c4 c6; 5...Nb6 A) 6.a3 Be7 7.e3 Nh6 8.Bb5 c6 9.Be2 Bh4; B) 6.Bc3 Qe7 (6...Bc3 7.Nc3 Bg4 8.d4 Ne7 9.e4 de4) 7.Bb4 Qb4 8.Nc3 Bg4 9.a4 c6; C) 6.e3 Bg4 (6...Ne7 7.Be2 Nc6 8.a3 Bc5 9.d4 Be7) 7.Bd3 Nc4 8.Bc4 dc4 9.0–0 Qd7; 5...Ne7 6.a3 Ba5 (6...Bc5 7.e3 0–0 8.Be2 Nf5 9.0–0 f6) 7.e6 fe6 8.Bg7 Rg8 9.Bc3 Bc3) 6.a3 (6.e3 fe5 7.Ne5 Ne5 8.Be5 Nf6 9.Be2 0–0; 6.c4 fe5 (6...Nb6 7.cd5 Qd5 8.Qc2 c6 9.e4 Qa5) 7.Qa4 Bd6 8.cd5 Qe7 9.Nc3 Ngf6; 6.ef6 Ngf6 7.e3 0–0 8.Be2 Nb6 9.0–0 Nc4) 6...Bc5 (6...Be7 7.ef6 Ngf6 8.e3 0–0 9.Be2 Nb6; 6...Ba5 7.e3 fe5 8.Ne5 Qh4 9.g3 Qg5) 7.d4 (7.ef6 Ngf6 8.e3 0–0 9.Be2 Nb6) 7...Bb6 8.Nc3 c5 (better is 8...Ba5!?+= 9.e3 fe5) 9.Nd5+/– cd4 (9...Ba5 10.c3+/–) 10.Nb6 ab6 (10...Qb6!? 11.Qd4 Nc5+/–) 11.Qd4+– fe5 (11...Qe7 12.Rd1+–) 12.Ne5 Ngf6 13.e4 0–0? (better is 13...Qe7+–) 14.Qc4 Kh8 15.Nf7 Rf7 16.Qf7 Ne4 (16...Ra4 17.Bd3 Ra5+–) 17.Qg7 1–0. marre – DrRafat, internet, 2010.

4.fe5 Qh4 5.g3 Qb4 6.Qc1 (6.Bc3 Qb6 7.Nf3 c5=) 6...Nc5 (6...Nb6 7.Nf3+=) 7.Bg2 Be6 (7...Ne7 8.Nf3+=) 8.Nf3 h5 (8...Ne4 9.0–0+=) 9.Bd4 Nh6 (9...h4!?=) 10.Nc3+= c6 11.Rb1 Qa5 12.Qb2 (12.Bc5 Bc5 13.e4 Ba3+=) 12...b6 13.0–0 Be7 14.Be3 (14.e3 h4 15.Nh4 Bh4 16.gh4 Nf5+=) 14...h4 15.Nd4 Kd7 (15...Bd7 16.gh4 Ng4 17.Bf4+=) 16.gh4 (16.Ne6 fe6 17.Bh6 Rh6=) 16...Ng4 17.Bf4 Bh4 (17...Rh4!? 18.h3 Nh6=) 18.e4+= (worse is 18.Ne6 Ne6 (worse is 18...Ke6 19.Bh3+/–) 19.e3 g5–/+) 18...de4 19.Ne6 (19.Ne4 Bd5 20.Nd6 Bg2 21.Kg2 Rh5+=) 19...fe6 (19...Ne6 20.Ne4 f5 21.ef6 Bf6 22.Nf6 gf6=) 20.Ne4+= Kc7 (20...Ne4 21.Be4 Qa4 22.Qb4 Qb4 23.Rb4=) 21.Qd4 (21.Nc5 Qc5 22.d4 Qc4+=) 21...Rad8 (21...Be7 22.Bf3 Nh6 23.Qc4+=) 22.Nd6 (22.Qc4 Be7 23.Nd6 Qa6+=) 22...g5 (22...Rhf8 23.h3 g5 24.hg4 gf4 25.Qc4+=) 23.Bg3 (better is 23.Be3 Ne3 24.Qe3+/–) 23...Ne3?? (better is 23...Bg3 24.hg3 Nh6+/–) 24.Rf7 (24.Qe3 Rdf8+–) 24...Kb8 (24...Rd7 25.Qe3 Qa2 26.Rbf1 Qc2 27.Bh4 Rh4 28.Qg5+–) 25.Qe3 Rhf8 (25...Qa2 26.Rff1 Bg3 27.hg3+– (worse is 27.Qg3 Qc2 28.d4 Na4+–)) 26.d4 Rf7 (26...Bg3 27.hg3 Rf7 28.Nf7+–) 27.Nf7 (27.dc5?! Qa2 28.Qc1 Rd6 29.ed6 Bg3 30.hg3 Kb7+–) 27...Rd7 (27...Qa2 28.Rf1 (worse is 28.Nd8 Qb1 29.Bf1 Kc7+–; 28.dc5?! Qb1 29.Bf1 Rf8=) 28...Nb7 29.Nd8 Nd8 30.Bh4 gh4 31.Qc3+–) 28.Rf1 (28.Nd6 Bg3 29.Qg3 Qa4 30.dc5 Qc2+–) 28...Nb7 (28...Na6 29.Nd6 Rd8 30.Bh4 gh4 31.Qg5+–) 29.Bc6 Rc7 30.Bb7 Kb7 31.Nd6 Ka6 32.Qe2 b5 33.Rb1 (33.Rb1 Bg3 34.hg3+–) 1–0. Smolenskiy,Y – Dittwald,W, corr ICCF cp, 1994.

3.f4 e6

4.e3 Ngf6 5.b5 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Nbd7).

4.Nf3 Ngf6 5.b5 Bd6 6.e3 Qe7 7.Ne5 0–0 8.Be2 Rd8 (8...Ne4 9.0–0=) 9.0–0 Nf8 (9...Bc5 10.d4 Bd6 11.Nd2=) 10.a4 N6d7 11.c4 (11.Bh5 Ng6+=) 11...f6= 12.Nd7 Nd7 13.cd5 (13.d4 c5=) 13...ed5= 14.Nc3 c6 15.Bf3 (15.Qc2 a6=) 15...Nc5 16.d4?? (16.Qc2 Qe6=) 16...Ne4?? (better is 16...Qe3 17.Kh1 Nd3 18.bc6 bc6 19.Nd5 cd5 (19...Nb2?! 20.Ne3 Nd1 21.Rad1=) 20.Bd5 Kh8 21.Ba8 Nb2–+) 17.Be4= de4 18.bc6 bc6 19.Qc2 (19.Ba3 Ba3 20.Qb3 Kf8 21.Ra3 Be6=) 19...f5 20.Rfc1 (20.Ba3 Ba3 21.Qb3 Be6 22.Qa3 Qa3 23.Ra3 Rac8+=) 20...Bd7 (20...Be6 21.Rab1=) 21.a5 (21.Rab1 Be6=) 21...Rac8 (21...Be6 22.Na4=) 22.Na4 Kh8 (22...Be6 23.Nc5=) 23.Nc5 Be8 (23...Bc5 24.Qc5 Qc5 25.Rc5=) 24.Ba3 (24.a6 Bc5 25.Qc5 Qc5 26.Rc5 Rd5+=) 24...Bf7 25.Qc3 Bd5 (25...Rb8 26.Rab1=) 26.Rab1 (26.a6 Rb8+=) 26...Rb8= 27.Qc2 (27.Rb8 Rb8 28.Bb4 Qh4=) 27...Rb5 28.Rb5 (28.Qd2 Rdb8 29.Rb5 cb5+=) 28...cb5+= 29.a6 Rb8 30.Bb4 Rb6 31.Ra1 h6 (31...Rc6 32.Ra5+=) 32.Qb2 (32.Qf2 Qe8+=) 32...Kh7 33.Ba5 (33.Qe2 Qe8+=) 33...Rb8 (33...Rc6 34.Bb4+=) 34.Rc1 (34.Bb4 Qf7+=) 34...g5 35.g3 gf4 36.gf4 (36.ef4 Qg7 37.Qd2 Qg6+=) 36...Rf8 (36...Qg7 37.Qg2–/+) 37.Kh1 (37.Qb5 Qh4 38.Rc2 Rg8 39.Kh1 Qg4=) 37...Rg8 (37...Bf4 38.Qe2 Qg5 39.Bd2+=) 38.Qf2 (38.Qb5 Qg7 39.Qd7 Bf4 40.Qf5 Kh8+=) 38...Qg7 39.Rg1 Qg1 40.Qg1 Rg1 41.Kg1 Kg6 42.Kf2 Kf7 43.Bb4 Ke7 (43...h5 44.Ke2+=) 44.Ke2= Bc4 (44...h5 45.Kd2+=) 45.Kd2 Kf7 (45...h5 46.Kc3 Kf7 47.Nb7+/–) 46.Kc3 Be7 47.Ba3 (47.Nd7 Ke6 48.Be7 Kd7+/–) 47...Bh4 48.Bc1 (48.Kd2!?=) 48...Be1+= 49.Bd2 (49.Kc2+=) 49...Bd2 (better is 49...b4!? 50.Kb4 Bd2 51.Kc4 Be3–/+) 50.Kd2= Ke7 (50...b4 51.h4=) 51.Kc3 Kd6 52.Kb4 Kc6 53.Ka5 Be2 54.Nb7 (better is 54.Ne6=) 54...b4 (54...Kd5 55.Kb4=) 55.Kb4 (better is 55.Nc5!?+/–) 55...Ba6= 56.Nc5 Be2 57.Ne6 Kd5 58.Ng7 Bg4 59.Ka5 (59.Ne8 Ke6=) 59...Kc4 60.Ka6 (60.Ne6 Kd3 61.d5 Bh5=) 60...h5 61.h4 (61.Ne6 Kd3 62.d5+–) 61...Kd3+/– 62.d5 Ke3 63.d6 Kf4 64.d7 Be2 (64...e3 65.d8Q e2 66.Qe7+–) 65.Ka5 (better is 65.Ka7 Bg4+–) 65...e3 66.d8Q Bf3 (66...Bg4 67.Nh5! Kf3 68.Qa8 Kf2+–) 67.Qg5 Ke4 68.Qf5 (68.Qf5 Kd4 69.Ne6 Kc3 70.Qf3+–) 1–0. Fredek (2090) – Gianti2 (1700), Freundschaftspartie, 5m + 0s, 2005.

3.f4 Ngf6

4.e3 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.f4 Nbd7).

4.Nf3 e6

5.a3 Bd6

6.e3 0–0 7.Nc3 A) 7...c6 8.Na2 (8.Bd3 e5 9.fe5 Ne5 10.Ne5 Be5 11.0–0 Qc7 12.h3 Ne4 13.Be4+=; 8.Be2 Re8 9.0–0 e5 10.fe5 Ne5 11.Na4 Nf3 12.Bf3 Qc7 13.g3+=) 8...a5 9.Be2 Qe7 10.0–0 Rd8 11.Ne5 Qf8 12.d3 c5 13.b5=; B) 7...a5 8.b5 (8.ba5 c6 9.Be2 Ra5 10.Nd4 e5 11.Nf5 Bb8 12.fe5 Be5 13.0–0+=; 8.Nb5 Be7 9.ba5 c6 10.Nc3 Ra5 11.Be2 b5 12.0–0 Qc7 13.a4+=) 8...e5 9.fe5 Ne5 10.Be2 Nc4 11.Bc4 dc4 12.Qe2 Be6 13.0–0=.

6.e3 0–0 7.Bd3 A) 7...a5 8.b5 c5 9.0–0 c4 10.Be2 Qb6 11.a4 Bc5 12.Bd4 Bd4 13.Nd4=; B) 7...Qe7 8.0–0 (8.Ne5 c5 9.Nd7 Bd7 10.bc5 Bc5 11.0–0 Bc6 12.Be5 a6 13.Qf3=; 8.Be2 a5 9.b5 e5 10.fe5 Ne5 11.0–0 Nfg4 12.Ne5 Be5 13.Bg4=; 8.Nc3 e5 9.fe5 Ne5 10.Ne5 Be5 11.0–0 a5 12.b5 Qd6 13.h3+=) 8...e5 9.Nh4 Nb6 10.fe5 Be5 11.Be5 Qe5 12.Nc3 Bg4 13.Nf3=; C) 7...c5 8.Bc3 (8.Be5 Qc7 9.Bd6 Qd6 10.bc5 Nc5 11.Qe2 b6 12.Nc3 Nfe4 13.Be4=; 8.b5 c4 9.Be2 a6 10.ba6 ba6 11.0–0 Rb8 12.Bd4 Qc7 13.d3+=; 8.bc5 Nc5 9.Be2 a6 10.0–0 b5 11.Bd4 Qe7 12.Nc3 Nfe4 13.Nb1=) 8...c4 9.Be2 a5 10.ba5 Ne4 11.Bb4 Qf6 12.Ra2 Qg6 13.0–0=; D) 7...c6 8.0–0 (8.Nc3 e5 9.fe5 Ne5 10.Ne5 Be5 11.0–0 Qd6 12.h3 a5 13.Qf3+=; 8.Be2 a5 9.b5 Qb6 10.Nc3 a4 11.Rb1 c5 12.0–0 Rd8 13.Na2=; 8.Ne5 c5 9.Nd7 Nd7 10.Qg4 g6 11.bc5 Nc5 12.Be5 Nd3 13.cd3+=) 8...a5 9.b5 c5 10.Nc3 Re8 11.Be2 e5 12.fe5 Ne5 13.Na4=.

6.e3 0–0 7.Bd4 A) 7...a5 8.c3 (8.b5 c5 9.bc6 bc6 10.Nc3 c5 11.Be5 Be5 12.Ne5 Ne5 13.fe5+=) 8...ab4 9.cb4 b6 10.Bb5 c5 11.Be5 Qe7 12.Bc6 Ra6 13.b5=; B) 7...Re8 8.Ne5 (8.Be2 a5 9.b5 c5 10.bc6 bc6 11.0–0 Qc7 12.Nc3 Rb8 13.a4+=; 8.Bd3 e5 9.fe5 Ne5 10.Ne5 Be5 11.Be5 Re5 12.Qf3 Ne4 13.Be4+=) 8...a5 9.b5 Ne4 10.Qh5 Be5 11.Be5 Ne5 12.fe5 f5 13.Be2+=; C) 7...c5 8.bc5 (8.Be5 Be5 9.fe5 Ng4 10.bc5 Nde5 11.Nc3 Qa5 12.Ne5 Ne5 13.Qh5+=) 8...Nc5 9.Be2 b6 10.0–0 Ba6 11.Ba6 Na6 12.Nc3 Nc5 13.Qe2=; D) 7...b6 8.Bb5 (8.Nc3 c5 9.Be5 Be5 10.Ne5 Ne5 11.fe5 Nd7 12.d4 f6 13.ef6+=; 8.Be2 c5 9.bc5 bc5 10.Bb2 Rb8 11.Ra2 Qc7 12.0–0 c4 13.Bd4+=; 8.Bd3 c5 9.bc5 bc5 10.Bc3 Rb8 11.0–0 Qc7 12.Ra2 Bb7 13.Be2+=) 8...c5 9.bc5 bc5 10.Be5 Ne4 11.Bd7 Bd7 12.0–0 Bc6 13.d3+=.

6.e3 0–0 7.Be2 A) 7...a5 8.b5 (8.ba5 Ra5 9.0–0 Qe7 10.Ne5 Rd8 11.Qe1 Ra7 12.Qh4 Ne4 13.Qe7=) 8...c5 9.0–0 Qb6 10.Ne5 c4 11.a4 Bc5 12.Nd7 Nd7 13.Qe1=; B) 7...Nb6 8.Nc3 (8.Bd4 a5 9.b5 c5 10.bc6 bc6 11.0–0 Ba6 12.Ba6 Ra6 13.Qe2=; 8.0–0 c5 9.bc5 Bc5 10.Bd4 Bd4 11.Nd4 Qd6 12.Nc3 Bd7 13.Qb1=; 8.Be5 Be5 9.Ne5 a5 10.b5 Nfd7 11.Nf3 c5 12.bc6 bc6 13.Nc3=) 8...a5 9.b5 Ra7 10.0–0 a4 11.Qe1 Bc5 12.Qg3 Bd7 13.Ne5=; C) 7...c5 8.Bc3 (8.Be5 Be5 9.fe5 Ng4 10.bc5 Nc5 11.Qc1 f6 12.Qb2 Ne5 13.Ne5+=; 8.b5 Qe7 9.0–0 e5 10.Nh4 Nb6 11.fe5 Be5 12.Be5 Qe5 13.c3=; 8.bc5 Nc5 9.0–0 a6 10.Nc3 b5 11.Qe1 Bb7 12.Qg3 Rc8 13.Rac1+=) 8...Ne4 9.bc5 Nc3 10.Nc3 Bc5 11.0–0 Qa5 12.Qe1 Be7 13.Qg3=; D) 7...Qe7 8.0–0 (8.Nc3 a6 9.0–0 b5 10.Nd4 c5 11.Nc6 Qe8 12.bc5 Nc5 13.Ne5=; 8.Bd4 b6 9.Nc3 c5 10.bc5 bc5 11.Be5 Be5 12.fe5 Ng4 13.Rb1+=) 8...e5 9.fe5 Ne5 10.Bd4 Nf3 11.Bf3 a5 12.b5 c5 13.Bb2=.

6.e3 a5 7.b5 A) 7...0–0 8.Be2 (8.Bd3 c5 9.0–0 c4 10.Be2 Qb6 11.a4 Bc5 12.Bd4 Bd4 13.Nd4=; 8.Ra2 Nb6 9.Be2 Bd7 10.Ne5 Qe8 11.Nd7 Nbd7 12.0–0 e5 13.fe5=) 8...c5 9.0–0 Qc7 10.c4 dc4 11.Bc4 Nb6 12.Be2 Nbd5 13.Qc2=; B) 7...a4 8.Bd3 (8.Be2 0–0 9.0–0 c5 10.Qe1 c4 11.Nc3 Qc7 12.Qh4 b6 13.d3=; 8.Bd4 0–0 9.Be2 c5 10.bc6 bc6 11.0–0 Qe7 12.Ne5 Bb7 13.d3+=) 8...0–0 9.0–0 Re8 10.Ne5 Nc5 11.Be2 Nfd7 12.d4 Ne4 13.c4+=; C) 7...Qe7 8.Ne5 (8.Be2 0–0 9.0–0 e5 10.Nh4 Nc5 11.fe5 Be5 12.Be5 Qe5 13.c3=; 8.Nc3 0–0 9.Be2 e5 10.fe5 Ne5 11.0–0 Re8 12.Qe1 Bg4 13.Qh4=) 8...0–0 9.Qf3 Ne4 10.Be2 Qh4 11.g3 Qe7 12.0–0 Be5 13.fe5=; D) 7...Nb6 8.Bd3 (8.Be2 a4 9.0–0 0–0 10.Bd4 c5 11.bc6 bc6 12.Nc3 Ba6 13.d3=; 8.Bd4 0–0 9.Be2 c5 10.bc6 bc6 11.0–0 c5 12.Be5 Ba6 13.Nc3=; 8.Be5 0–0 9.Be2 Be5 10.Ne5 Nfd7 11.Nd7 Bd7 12.0–0 Qf6 13.d4=) 8...0–0 9.0–0 Ne4 10.Nc3 Nc5 11.Be2 Qe7 12.a4 f6 13.d4=.

6.e3 Nb6 7.Bb5 A) 7...c6 8.Bf1 (8.Bd3 a5 9.ba5 Ra5 10.0–0 0–0 11.Be5 Nc4 12.Bc4 dc4 13.d3=; 8.Be2 a5 9.ba5 Ra5 10.Bc3 Ra4 11.0–0 0–0 12.Bd4 c5 13.Be5=) 8...0–0 9.Be5 Be5 10.fe5 Nfd7 11.Be2 f6 12.ef6 Qf6 13.Nc3=; B) 7...Nbd7 8.Be2 (8.Be5 Be7 9.0–0 a5 10.c3 0–0 11.Qc2 Ne5 12.fe5 Nd7 13.Bd3=; 8.Bc3 a6 9.Be2 0–0 10.0–0 Qe7 11.Bd4 b5 12.Ne5 c5 13.Nc6=; 8.Bd3 a5 9.b5 0–0 10.0–0 c5 11.Be2 Qb6 12.Ne5 c4 13.a4=) 8...0–0 9.0–0 a5 10.b5 Qe7 11.Ne5 a4 12.Bd4 Rd8 13.Qe1=; C) 7...Bd7 8.Bd7 (8.Be2 a5 9.ba5 Ra5 10.0–0 0–0 11.Bc3 Ra4 12.Be5 Bc5 13.d4+=; 8.Bd3 a5 9.ba5 Ra5 10.0–0 0–0 11.Ne5 Na4 12.Qc1 Qe7 13.c4+=; 8.Nc3 0–0 9.0–0 a5 10.Bd7 Nfd7 11.b5 Nc4 12.Qc1 Qf6 13.d3+=) 8...Nbd7 9.0–0 0–0 10.Ne5 c5 11.bc5 Bc5 12.Nc3 Ne5 13.fe5=.

6.e3 Nb6 7.Nc3 A) 7...Bd7 8.Bd3 (8.Be2 a5 9.b5 0–0 10.0–0 Qe8 11.Qe1 Ne4 12.a4 f6 13.Ne4=; 8.Ne5 0–0 9.Be2 c5 10.Nd7 Nfd7 11.Nb5 Be7 12.bc5 Bc5 13.0–0=; 8.Nb5 Be7 9.Be5 Bb5 10.Bb5 c6 11.Be2 0–0 12.0–0 a5 13.b5=) 8...a5 9.b5 0–0 10.0–0 Bc8 11.Qe1 c5 12.Qg3 c4 13.Be2=; B) 7...0–0 8.Be2 (8.Nb5 Be7 9.Be5 Ne8 10.Be2 a5 11.Rb1 Nc4 12.0–0 Bd7 13.Bc4=; 8.Bd3 a5 9.b5 c5 10.0–0 c4 11.Be2 a4 12.Qe1 Ra5 13.Ne5=; 8.Rb1 Bd7 9.Nb5 Be7 10.Be5 Ne8 11.Bd4 Nc4 12.Bc4 dc4 13.Nc3=) 8...a5 9.b5 Nfd7 10.0–0 a4 11.Qe1 e5 12.fe5 Ne5 13.Ne5=; C) 7...a6 8.Be2 (8.Bd3 0–0 9.0–0 c5 10.bc5 Bc5 11.Qe2 Qc7 12.Ne5 Nbd7 13.Na4=; 8.Rb1 0–0 9.Be2 Bd7 10.0–0 Qe7 11.Qc1 a5 12.b5 Nc4 13.Bc4=; 8.Ne5 0–0 9.Bd3 Nbd7 10.Nd7 Nd7 11.0–0 c5 12.Qg4 Nf6 13.Qh4=) 8...0–0 9.0–0 c5 10.bc5 Bc5 11.a4 Bd7 12.a5 Nc8 13.Qb1=; D) 7...c5 8.Nb5 cb4 9.ab4 Bb8 10.Ra5 a6 11.Qa1 Bd7 12.Bd4 Nc4 13.Bc4=.

6.e3 Nb6 7.Bd3 A) 7...a5 8.b5 (8.ba5 Ra5 9.0–0 0–0 10.Bc3 Ra8 11.Be5 Nc4 12.Bc4 dc4 13.Nc3=) 8...a4 9.Ne5 0–0 10.Qf3 Nfd7 11.Qh3 h6 12.Qg3 f6 13.Qg6+/–; B) 7...0–0 8.0–0 (8.Bd4 a5 9.b5 c5 10.bc6 bc6 11.0–0 c5 12.Be5 Ba6 13.Ba6=; 8.Nc3 a5 9.b5 c5 10.0–0 c4 11.Be2 Bc5 12.Qe1 Qd6 13.Qf2=; 8.Be5 c5 9.Bd6 Qd6 10.bc5 Qc5 11.0–0 Bd7 12.Nd4 Na4 13.Qf3=) 8...a5 9.b5 Nbd7 10.Ne5 Ne4 11.Qh5 f6 12.Nc4 Be7 13.Be4=; C) 7...Bd7 8.0–0 (8.Bd4 0–0 9.Ne5 Rc8 10.0–0 c5 11.bc5 Bc5 12.Bc5 Rc5 13.Nc3=; 8.Ne5 Na4 9.Bd4 c5 10.bc5 Bc5 11.Bc5 Nc5 12.Qe2 0–0 13.Nc3=; 8.Be5 0–0 9.0–0 Qe7 10.Nc3 a5 11.Ng5 h6 12.Bf6 gf6 13.Nh7=) 8...a5 9.b5 Nc4 10.Bc4 dc4 11.Nd4 Rc8 12.a4 c6 13.Qe2=; D) 7...c5 8.bc5 (8.Bc3 c4 9.Be2 0–0 10.0–0 Bd7 11.d3 cd3 12.cd3 Rc8 13.Qe1=) 8...Bc5 9.0–0 0–0 10.Qe2 Bd7 11.Nc3 Qc7 12.Ne5 Rfc8 13.a4=.

6.e3 Nb6 7.Be2 A) 7...0–0 8.0–0 (8.Bd4 a5 9.b5 c5 10.bc6 bc6 11.0–0 Ba6 12.Ba6 Ra6 13.Qe2=; 8.Nc3 a5 9.b5 Bd7 10.0–0 Qe8 11.Ne5 Bc5 12.d4 Bd6 13.Bd3=; 8.Be5 Be5 9.Ne5 a5 10.b5 Nfd7 11.Nd7 Bd7 12.0–0 Qf6 13.d4=) 8...c5 9.bc5 Bc5 10.Bd4 Bd4 11.Nd4 Qd6 12.Nc3 Bd7 13.Qb1=; B) 7...a5 8.b5 (8.ba5 Ra5 9.0–0 0–0 10.Bc3 Ra8 11.Bd4 c5 12.Be5 c4 13.Qe1=) 8...0–0 9.0–0 Bd7 10.Ne5 Bc5 11.a4 Qe7 12.Qe1 c6 13.Qg3=; C) 7...Qe7 8.0–0 (8.Nc3 Bd7 9.0–0 0–0 10.Ne5 c5 11.bc5 Bc5 12.Qe1 Rfc8 13.Qh4=; 8.Ne5 0–0 9.0–0 c5 10.bc5 Bc5 11.a4 Bd7 12.a5 Na4 13.Ba3=; 8.Bd4 0–0 9.0–0 a5 10.b5 Nbd7 11.Ne5 a4 12.d3 Rd8 13.Qd2=) 8...0–0 9.Nc3 c6 10.Qe1 Rb8 11.Qg3 Rd8 12.Rab1 Bd7 13.Ne5+=; D) 7...c5 8.bc5 (8.b5 0–0 9.0–0 a6 10.a4 Nbd7 11.Nc3 b6 12.Rb1 c4 13.Nd4=; 8.Bc3 0–0 9.0–0 Ne4 10.bc5 Nc3 11.Nc3 Bc5 12.Ne5 f6 13.Nd3+=; 8.Bb5 Bd7 9.bc5 Bc5 10.Be2 0–0 11.0–0 Nc4 12.Bd4 Rc8 13.Bc4=) 8...Bc5 9.0–0 0–0 10.Bd4 Bd4 11.Nd4 Ne4 12.d3 Nd6 13.a4=.

6.g3 c5 7.bc5 Nc5 8.d3 (8.Bg2 0–0+=) 8...Bd7 9.Nbd2 Bc6 (9...0–0 10.Bg2+=) 10.Bg2 Na4 11.Bd4 b5 (11...Bc5 12.Bc5 Nc5 13.Ne5=) 12.Ne5 Bb7 13.0–0 (13.c4 a6=) 13...0–0 14.Nb3 (14.Rb1 Qc7 15.Rb5 Ba3+=) 14...Nd7 (14...Qc7 15.c4+=) 15.Nd7 Qd7 16.e4 White plans f5 (16.Na5 Rac8=) 16...Rac8 (16...de4 17.de4 Rad8 18.Qe2=) 17.Kh1 (17.e5 Be7=) 17...Nc5 (17...de4 18.de4 Qc7 19.Ba7+=) 18.ed5 (18.Qh5 Be7 19.Rfd1 f5=) 18...Bd5 19.Bd5 ed5 20.f5 f6 21.Qf3 Nb3 22.cb3 (22.Qd5 Rf7 23.cb3 Bf8+/–) 22...Bc5 (22...Be5 23.Qg4+=) 23.Bb2 (23.Bc5 Rc5 24.d4 Rc2+=) 23...Rfe8+= 24.Rae1 a5 25.Qg4 d4 26.Re4 (26.Re8!? Re8 27.b4 ab4 28.ab4+=) 26...Qd5–/+ 27.Qf3 (27.Rc1 Qb3 28.Rc5 Qb2=) 27...Qb3 28.Bd4 Qa3?? (better is 28...Ba3 29.Rfe1 Re4 30.Re4 a4–+) 29.Ra1 Qb4 30.Re8 Re8 31.Qd5 Kh8 32.Bc5 Qc3 33.Rg1 (33.Rb1 b4+–) 33...h6 (better is 33...b4+–) 34.Qf7?? (34.Qd7 Re1 35.Re1 Qe1 36.Kg2 Qe2 37.Bf2 Qe5+–) 34...Qe5? (better is 34...Re5 35.Qf8 Kh7+=) 35.Bf8+– Rf8 36.Qf8 Kh7 37.Qa8 Qf5 38.Qe4 (38.Qe4 Qe4 39.de4+–) 1–0. blackpanther (2410) – funkade (2575), net–chess.com, 2004.

6.e3 Qe7

7.c4 A) 7...c5 8.bc5 (8.cd5 ed5 9.bc5 Bc5 10.Be2 0–0 11.0–0 Ne4 12.Nd4 Nb6 13.Nb3=; 8.Bf6 Qf6 9.Nc3 dc4 10.Bc4 cb4 11.Nb5 Bb8 12.ab4 a6 13.Nc3=) 8...Bc5 9.d4 Bd6 10.c5 Bc7 11.Bd3 b6 12.c6 Nb8 13.Qa4=; B) 7...dc4 8.Bc4 a5 9.b5 e5 10.fe5 Ne5 11.Ne5 Be5 12.Be5 Qe5 13.Nc3=; C) 7...b6 8.cd5 (8.Nc3 0–0 9.Be2 dc4 10.Bc4 Bb7 11.Nb5 a5 12.Nd6 cd6 13.b5=; 8.Nd4 Bb7 9.cd5 Nd5 10.Bb5 0–0 11.0–0 c5 12.bc5 Nc5 13.Nc3+=; 8.Ne5 0–0 9.Nc6 Qe8 10.cd5 ed5 11.Be2 Bb7 12.Qc1 a5 13.b5=) 8...ed5 9.Bb5 a5 10.Bc6 Ra7 11.Nd4 ab4 12.Nf5 Qe4 13.Nd6=; D) 7...c6 8.c5 (8.Nc3 dc4 9.Bc4 e5 10.0–0 0–0 11.Ne5 Ne5 12.fe5 Be5 13.Qc2=; 8.g4 Ng4 9.Bg7 Rg8 10.Bc3 e5 11.h3 Ngf6 12.c5 Bc7 13.fe5+=; 8.Ne5 0–0 9.c5 Bc7 10.Bd3 Ne5 11.Be5 Be5 12.fe5 Nd7 13.0–0+=) 8...Bc7 9.Be2 0–0 10.0–0 e5 11.fe5 Ne5 12.Bd4 Nf3 13.Rf3=.

7.Be2 A) 7...0–0 8.0–0 (8.Nc3 c6 9.0–0 Re8 10.Qe1 e5 11.Nh4 Nb6 12.fe5 Qe5 13.Nf3=; 8.Bd4 b6 9.0–0 c5 10.bc5 bc5 11.Be5 Rb8 12.Nc3 Be5 13.Ne5+=; 8.Nd4 a5 9.ba5 Ra5 10.Nb5 c6 11.Nd6 Qd6 12.a4 b6 13.0–0=) 8...a6 9.Ne5 c5 10.bc5 Nc5 11.c4 b6 12.d4 Nce4 13.Qb3=; B) 7...e5 8.fe5 (8.Ne5 Ne5 9.Be5 Be5 10.fe5 Qe5 11.Nc3 d4 12.ed4 Qd4 13.Nb5=; 8.Be5 Ne5 9.Ne5 Be5 10.fe5 Qe5 11.Nc3 d4 12.ed4 Qd4 13.Nb5=) 8...Ne5 9.0–0 Bg4 10.Bd4 Bf3 11.Bf3 Nf3 12.Qf3 Be5 13.Nc3=; C) 7...a6 8.Ne5 (8.0–0 0–0 9.Ne5 a5 10.b5 a4 11.Bd4 Rd8 12.Qe1 Bc5 13.Qh4=; 8.Bd4 0–0 9.0–0 b6 10.Be5 c5 11.bc5 bc5 12.Nc3 Be5 13.Ne5=; 8.Nc3 0–0 9.0–0 b5 10.Nd4 c5 11.Nc6 Qe8 12.bc5 Nc5 13.Ne5=) 8...Ne4 9.0–0 0–0 10.c4 c5 11.bc5 Bc5 12.d4 Bd6 13.Nc3+=; D) 7...a5 8.b5 0–0 9.0–0 e5 10.fe5 Ne5 11.Bd4 Nf3 12.Bf3 c5 13.Bb2=.

7.Be5 A) 7...0–0 8.d4 (8.Bd3 Be5 9.Ne5 Ne5 10.fe5 Nd7 11.Qg4 h6 12.Qg3 a5 13.ba5+=; 8.Bd6 Qd6 9.Nc3 a5 10.Nb5 Qb6 11.ba5 Ra5 12.Nbd4 Qd6 13.Ra2+=; 8.Nc3 Be5 9.Ne5 Ne5 10.fe5 Nd7 11.d4 f6 12.ef6 Qf6 13.Qd2+=) 8...a5 9.b5 Be5 10.fe5 Ng4 11.Qd3 f6 12.h3 fe5 13.hg4=; B) 7...a5 8.ba5 (8.Bd6 Qd6 9.b5 e5 10.fe5 Ne5 11.Be2 0–0 12.0–0 Nfg4 13.g3+=; 8.b5 Be5 9.Ne5 Ne5 10.fe5 Nd7 11.d4 Qh4 12.Kd2 f6 13.ef6+=; 8.c3 Be5 9.Ne5 ab4 10.cb4 Ne5 11.fe5 Nd7 12.d4 Qh4 13.Kd2+=) 8...Ra5 9.Bc3 Ra8 10.Be2 0–0 11.0–0 Ne4 12.Bd4 f6 13.d3=; C) 7...c6 8.d4 (8.Bd6 Qd6 9.Be2 0–0 10.0–0 a5 11.b5 c5 12.Qe1 e5 13.fe5=; 8.Be2 Be5 9.fe5 Ng4 10.0–0 Nge5 11.Ne5 Ne5 12.d4 Nd7 13.c4+=; 8.Nc3 0–0 9.Bd6 Qd6 10.Be2 b6 11.0–0 Rd8 12.d4 Bb7 13.Ne5=) 8...a5 9.b5 0–0 10.Be2 Ne4 11.0–0 Ndf6 12.c4 cb5 13.c5=; D) 7...Be5 8.Ne5 (8.fe5 Ng4 9.Bb5 c6 10.Be2 a5 11.ba5 Nge5 12.Ne5 Ne5 13.d4+=) 8...Ne5 9.fe5 Nd7 10.d4 Qh4 11.Kd2 f6 12.ef6 Nf6 13.Nc3+=.

7.Ne5 0–0 8.Be2 (8.Bd3 c5 9.Nd7 Bd7 10.bc5 Bc5 11.0–0 Bc6 12.Be5 Rac8 13.Qf3+=; 8.Qf3 a5 9.ba5 Ra5 10.Be2 Ne4 11.0–0 f6 12.Nc4 dc4 13.Qe4=; 8.Bd4 a5 9.b5 Ne4 10.Qh5 f6 11.Nd7 Bd7 12.d3 e5 13.de4=) 8...Ne4 9.0–0 c5 10.d3 Nef6 11.bc5 Bc5 12.d4 Bd6 13.c4 =.

7.Ne5 a5 8.b5 0–0 9.Qf3 Ne4 10.Be2 Qh4 11.g3 Qh3 12.c4 Ne5 13.fe5 =.

7.Ne5 c5 8.bc5 Bc5 9.Bd3 0–0 10.0–0 a6 11.Qf3 b5 12.Qg3 Ne5 13.fe5 =.

7.Ne5 c6 8.Bd3 (8.Be2 Ne4 9.0–0 0–0 10.d3 Nef6 11.c4 dc4 12.Nc4 Bc7 13.Bd4=; 8.Qf3 0–0 9.Be2 a5 10.ba5 Ra5 11.0–0 c5 12.c4 Nb6 13.Bc3=; 8.b5 cb5 9.Bb5 0–0 10.0–0 a6 11.Be2 b5 12.a4 ba4 13.Ra4=) 8...Bc7 (8...0–0 9.0–0 c5 10.Nd7 Bd7 11.bc5 Bc5 12.Qf3 Bc6 13.Qg3=) 9.0–0 c5 (9...Ne5 10.fe5 Nd7 11.Qg4 0–0 12.Qg3 c5 13.bc5=) 10.Bb5 (10.bc5 Nc5 11.Bb5 Bd7 12.Nd7 Ncd7 13.Qf3+=) 10...a6 (10...cb4 11.ab4 Qb4 12.Nc3 Be5 13.fe5=) 11.Bd7 (11.Nd7 Bd7 12.Bd7 Kd7 13.bc5+=) 11...Bd7 12.Nc3 (12.Nd7 Kd7 13.bc5+=) 12...Bb6 (12...cb4 13.ab4+=) 13.Ne2 (13.Qf3=) 13...Rc8 14.Ng3 Ba4 15.Nh5 Nh5 16.Qh5 Bc2 17.g4 (17.bc5 Bc5 18.Rac1 Bg6 19.Ng6 fg6–/+) 17...Bg6 18.Qh3 h6 19.f5 Bh7 20.Qh5 (20.fe6!? Qe6 21.Rf7=) 20...Rc7 (worse is 20...cb4 21.fe6 Qe6 22.Rf7+=) 21.h4? (better is 21.Nd3 ef5 22.Nf4+=) 21...cb4–+ 22.g5? (22.ab4 ef5 23.Rac1–+) 22...Bf5 23.Rf5 ef5 24.g6 f6 25.Nf7 Rg8 26.Qf5 Qe4?? (better is 26...Rc4 27.Bd4 Bd4 28.ed4 b3–+) 27.Nd6+– Kd8 (27...Ke7 28.Ne4 de4 29.Qe4 Kd6+–) 28.Ne4 de4 29.Qe4 (better is 29.Qd5 Ke7 30.Qg8+–) 29...Re8 30.Qb4 Bc5 31.Qa5 Re4 (31...Kd7 32.Rc1 Rec8 33.Qa4 Kd8 34.Qb3 Be3 35.de3 Rc1 36.Bc1 Rc1 37.Kf2+–) 32.Rc1 Rg4 33.Kf1 b6 34.Qa6 Rh4 (34...Ke7 35.d4 Rh4 36.dc5 Rh1 37.Kg2 Rc1 38.Bc1 bc5 39.Qb6+–) 35.Qa8 (better is 35.Rc5 bc5 36.Bf6 gf6 37.Qf6 Kd7 38.Qh4 Rc8+–) 35...Ke7 36.Bd4! Kd6 (36...Bd4 37.Rc7 Double attack (37.Rc7 Pinning; 37.Rc7 Deflection; 37.Rc7 Decoy)) 37.Bc5 bc5 38.Qd8 Rd7 39.Qb6 Ke7 40.Qc5 Ke6 41.Qc8 (41.Qc6 Ke7 42.Rb1 Rh5+–) 41...Ke7 (41...Rh1 42.Ke2 Rc1 43.Qc1 Kd6+–) 42.Rc7 Rc7 43.Qc7 Ke6 44.Qg7 Kf5 45.Qf7 h5 46.g7 1–0. Steppuhn,Thomas (2045) – Gebhardt,Christian, 10th Forchheim Open, 2011.

7.Ne5 Ne4 8.Qf3 (8.Qg4 Qf6 9.Bb5 c6 10.Nc4 e5 11.Nd6 Nd6 12.Be2 h5 13.fe5=; 8.Qh5 0–0 9.Bb5 c6 10.Bd3 a5 11.ba5 Ndc5 12.Be4 Ne4 13.Nc3=) 8...Qh4 9.g3 Qh6 10.d3 Nef6 11.c4 a5 12.b5 Nc5 13.Nd2 +=.

2...e5

(--> 1.b4 e5 2.Bb2 d5).

3.c3 (--> 1.b4 e5 2.c3 d5 3.Bb2).

3.e3 e4 (--> 1.b4 e5 2.Bb2 e4 3.e3 d5).

3.e3 Nf6 4.a3 (--> 1.b4 e5 2.a3 d5 3.e3 Nf6 4.Bb2).

3.Be5 Bb4?? (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 d5??).

3.a3

3.a3 (--> 1.b4 e5 2.a3 d5 3.Bb2).

3.a3 Nc6 4.e3 f6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Nc6).

3.a3 d4 4.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 d4).

3.a3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6).

3.b5

3.b5 (--> 1.b4 e5 2.b5 d5 3.Bb2).

3.b5 Qd6 (--> 1.b4 d5 2.Bb2 Qd6 3.b5 e5).

3.b5 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6).

3.b5 e4 4.e3 (--> 1.b4 e5 2.Bb2 e4 3.e3 d5 4.b5).

3.b5 f6 4.e3 Be6 5.Nf3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3).

3.b5 Nf6 4.Be5 (--> 1.b4 e5 2.Bb2 d5 3.Be5 Nf6 4.b5).

3.e3 Bb4

4.Be5 Nf6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 d5).

4.Be5 Nf6 5.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.e3).

3.Be5 Nc6

4.Bb2 Nb4 5.a3 Nc6 6.e3 Nf6 7.Nf3 Bd6 (--> 1.b4 e5 2.Bb2 d5 3.Be5 Nc6 4.Bb2 Nb4 5.a3 Nc6 6.Nf3 Nf6 7.e3 Bd6).

4.Bb2 Nb4 5.a3 Nc6 6.Nf3 Nf6 7.e3 (--> 1.b4 e5 2.Bb2 d5 3.Be5 Nc6 4.Bb2 Nb4 5.a3 Nc6 6.e3 Nf6 7.Nf3).

4.Bb2 Nb4 5.e3 Nf6 6.a3 Nc6 7.c4 Be7 8.Nf3 (--> 1.b4 e5 2.Bb2 d5 3.Be5 Nc6 4.Bb2 Nb4 5.a3 Nc6 6.e3 Nf6 7.Nf3 Be7 8.c4).

2...Be6

3.e3 Qd6 4.b5 Nd7 5.f4 Nb6 6.Nf3 Nf6 7.Be2 Ne4 8.Be5 Qd7 9.d3 f6 10.de4 fe5 11.Ne5 Qd6 12.ed5 Nd5 13.Qd2 0–0–0 14.0–0 Qc5 15.Qd4 Qc2?? 16.Bd3+– Nb4 17.Qa7 (17.Qa7 Qa4 18.Qa4+–; 17.Bc2?! Rd4 18.Bh7 Rd5+/–) 1–0. elsh1403 – lesmax, kurnik, 2011.

3.e3 Nf6 4.Nf3 =.

3.Nf3 a6 4.Nd4 b5 5.Ne6+/– fe6 6.e3 Nf6 7.d4 Qd6 8.a3 g5 9.Be2 Nbd7 10.g3 0–0–0 11.0–0 Ne4 12.Nd2 h5? 13.Ne4+– de4 14.c4 h4 15.cb5 hg3 16.fg3 Nf6 17.ba6 Kb8 18.b5 Nd5 19.Qa4 Ne3 20.a7 Ka8 21.Rfe1 Bg7 22.Bc3?? Bd4 23.Bd4+/– Nd5?? 24.Qc2 Rh2 25.Qc6 Qc6 26.bc6 Rh3 27.Ba6 Nb6 28.Bb7 Ka7 29.Re4 Rg3 30.Kf2 Rb3 31.Bb6 Rb6 32.Re6 Rd2 33.Re2 Rd5 34.Re7 Rf5 35.Kg3 Rb3 36.Kg4 Rbf3 37.Rc7 R3f4 38.Kh5 Rh4 39.Kg6 Rhf4 40.Rg7 Rf6 41.Kg5 R4f5 42.Kg4 Rf4 43.Kg3 Rf3 44.Kg2 Rf2 45.Kg1 Kb6 46.Rb1 Kc5 47.Rg2 Rg2 48.Kg2 Rg6 49.Kf2 Kd6 50.Rc1 Kc7 51.Ke3 Re6 52.Kd4 Rh6 53.Kc4 Rh3 54.Kb4 Rh4 55.Rc4 Rh3 56.a4 Rh1 57.Ka5 Rh5 58.Ka6 Rh1 59.a5 Ra1 60.Rf4 Rd1 61.Rf7 Kd6 62.c7 (62.c7 Rf1 63.Rd7 Kd7 64.c8Q Ke7 65.Qc5 Kd8 66.Qg5 Kd7 67.Qb5 Ke7 68.Qf1+–) 1–0. mihai740609 – rpgentil, kurnik, 2011.

3.Nf3 Nh6 4.e3 Bg4 5.Be2 Bf3 6.Bf3 c6 7.0–0 Nd7 8.d3 Nf6 9.c4 e6 10.a3 Be7 11.cd5 cd5 12.Nc3 0–0 13.d4 a5 14.b5 b6 15.Rc1 Ne4?? (better is 15...Rc8=) 16.Ne4+– de4 17.Be4 f5? (better is 17...Rc8+–) 18.Ba8 Qa8 19.Qf3 (19.Rc6!? Nf7+–) 19...Qf3 20.gf3 Bh4 (20...Kf7 21.Rc7+–) 21.Rc6 Bd8 22.Re6 Kh8 (22...Nf7 23.f4+–) 23.d5 Ng8 24.Rd1 h6 (24...Ne7 25.Rd6+–) 25.d6 (25.Bd4 Nf6 26.Bb6 Bb6 27.Rb6 Rd8+–) 25...Kh7 26.f4 h5 27.d7 h4 (27...Nf6 28.Kg2 Kg8 29.Bf6 gf6 30.Kg3+–) 28.Bd4 (better is 28.Re8 Rf7 29.Rd8 h3+–) 28...Bc7 (28...Nf6 29.Bf6 gf6 30.Re8+–) 29.Bb6 (better is 29.Rc1 Bd8 30.Re8 Rf7 31.Rd8 Nh6+–) 29...Bb6 30.Rb6 Rd8 31.Rc6 Nf6 32.Rc7 Ne4 (32...Kg6 33.b6 Kf7 34.b7+–) 33.Rc8 Rd7 34.Rd7 1–0. Fournier,Frederic – efrayrey(C) (1650), Active, 2007.

3.e3 f6

4.d4 Nd7 5.Nd2 Nb6 (5...Bf5 6.a3=) 6.a4 a5 7.b5 Nc8 (7...Bf5 8.c4=) 8.c4 Nh6 9.cd5 Bd5 10.e4 Bf7 11.Ngf3 e6 12.Bd3 Bb4 13.0–0 0–0 14.Qc2 Nd6 15.Rac1 Rc8 16.e5 Ndf5 17.ef6 gf6 18.Ne4 Be7 19.Qd2 b6 20.h3 Kg7 21.g4 Bb4 22.Qf4 Bd6 23.Nd6 Nd6 24.d5 Bg6? (24...ed5 25.Qg5 Double attack) 25.Bg6 (25.Nd4!? Re8 26.Bg6 Kg6 27.Ne6 Re6 28.de6 Qe7+–) 25...e5 26.Ne5! hg6 (26...fe5) 27.Nc6 Qd7 28.Nd4 g5 29.Qf3 Kg6 30.Rfe1 Rf7 (30...Rfe8 31.Re8 Qe8 32.Ne6+–) 31.Re6 Ng8 (31...Ne8 32.Nc6 Kg7 33.Rce1+–) 32.Qd3 (better is 32.Rd6 cd6 33.Qf5 Qf5 34.gf5 Kh7 35.Rc8 Ne7+–) 32...Kg7 33.Nf5 Nf5 34.Qf5 (34.gf5?! Ne7+–) 34...Rd8 (34...Kf8 35.Qg6 Re8 36.Ba3 Ree7+–) 35.Qg5 Kf8 (35...Kh8 36.Qh5 Rh7 37.Rf6 Nf6 38.Bf6 Kg8 39.Qg5 Kf8 40.Bd8+–) 36.Ba3 Ne7 37.Re7 fg5 38.Rd7 (38.Rd7 Ke8 39.Rf7 Kf7 40.Rc7 Kg6 41.Rc6 Kf7 42.d6+–) 1–0. Ellison,Robert M – Pearson,Walter (1615), GBR–ch Seniors, 2005.

4.Ne2 Bf7 =.

4.Nf3 c6 5.Nd4 (5.b5 Bg4=) 5...Bd7 (5...Bf7 6.Nc3 e5=) 6.Be2 (better is 6.f4!?=) 6...e5–/+ 7.Nf3 (7.Nb3 Bb4 8.a3–/+) 7...Be6 (7...Bb4 8.0–0–/+) 8.0–0 (8.a3 Bd6=) 8...Qd7 (8...Bb4 9.d4=+) 9.d3 (9.a3 c5=) 9...g5 (9...Bb4 10.d4 e4 11.Nfd2–/+) 10.Nfd2 (10.c3 g4 11.Nfd2 Bd6=) 10...h5 (10...Bb4 11.c3 Bd6 12.Bh5 Kd8 13.Ba3–/+) 11.Bh5 (11.a3!?+=) 11...Kd8= 12.Bg6? (12.f4 Qh7 13.f5 Bf5 14.a3–/+) 12...Bh3 (13.e4 Bg2+–; 12...Bb4?! 13.Nc3=+) 0–1. wood – Flip4, Live Game Caissa's Web, 2005.

4.Nf3 Bg4 5.h3 Bh5 6.g4 =.

4.d4 Bf7

5.a3 a5 A) 6.Nf3 ab4 7.ab4 Ra1 8.Ba1 e6 9.Bc3 Bd6 10.Bb5 c6 11.Be2 Qb6=; B) 6.ba5 e6 (6...Nd7 7.Nf3 Ra5 8.Nbd2 Bg6 9.Bc3 Ra8 10.Bb4 e5 11.Bf8 Kf8+=) 7.Bc3 Bg6 8.Nf3 Bd6 9.Bb4 Nc6 10.Bb5 Nge7 11.Nh4 0–0=; C) 6.b5 Bg6 (6...e6 7.Nf3 Bg6 8.c4 Nh6 9.Nc3 c6 10.Nh4 Bf7 11.c5 e5+=) 7.Nf3 e6 8.Nh4 Bf7 9.Bd3 Nh6 10.0–0 Bd6 11.Nf3 0–0+=.

5.a3 Nd7 A) 6.Be2 a5 (6...e5 7.Nf3 e4 8.Nfd2 a5 9.b5 f5 10.c4 Ngf6 11.c5 Be7+=) 7.b5 e5 8.Nf3 Bd6 9.0–0 e4 10.Nfd2 c6 11.c4 Qc7=; B) 6.Bb5 c6 (6...a6 7.Be2 e5 8.Nf3 Bd6 9.0–0 Ne7 10.de5 fe5 11.Ng5 Bg8=) 7.Be2 e5 8.Nf3 e4 9.Nfd2 Bd6 10.c4 Qb8 11.h3 Ne7=; C) 6.Nf3 Bg6 (6...e6 7.c4 a5 8.b5 Ne7 9.c5 c6 10.Nc3 e5 11.Be2 e4+=) 7.Be2 a5 8.b5 Nb6 9.Nh4 Bf7 10.0–0 e6 11.Nf3 Bd6+=.

5.a3 e6 A) 6.Nf3 a5 (6...Bg6 7.Be2 a5 8.b5 Nh6 9.0–0 Be7 10.c4 0–0 11.Nc3 Qd6+=) 7.b5 Bg6 8.Nh4 Bf7 9.Bd3 Nh6 10.0–0 Bd6 11.Nf3 0–0+=; B) 6.Bd3 Bd6 (6...a5 7.b5 Bd6 8.Qg4 g5 9.e4 h5 10.Qe2 Ne7 11.Nf3 Ng6+=) 7.e4 a5 8.e5 Be7 9.Qg4 g6 10.ba5 fe5 11.de5 Ra5=; C) 6.c4 a5 (6...Bg6 7.Nf3 a5 8.b5 Nh6 9.Nc3 Be7 10.cd5 ed5 11.Qb3 Bf7+=) 7.b5 Bg6 8.Nc3 Ne7 9.Nf3 c6 10.c5 Nd7 11.Nh4 Bf7+=.

5.a3 Bg6 A) 6.Be2 Nh6 (6...e6 7.Nf3 a5 8.b5 Nh6 9.c4 Be7 10.Nc3 Qd7 11.Qb3 c6+=) 7.Nh3 a5 8.Nf4 ab4 9.ab4 Ra1 10.Ba1 Bf5 11.Bc3 Qd7+=; B) 6.Nh3 Nd7 (6...Bf5 7.Bd3 Bd3 8.Qd3 Qd7 9.0–0 a5 10.e4 ab4 11.ed5 Qd5+=) 7.Nf4 Bf7 8.Be2 e6 9.0–0 Bd6 10.Nh5 g6 11.Ng3 Ne7+=; C) 6.Nf3 e6 (6...a5 7.b5 e6 8.Be2 Nh6 9.c4 Be7 10.Nc3 0–0 11.Qb3 Bf7+/–) 7.Nh4 Bf7 8.Bd3 Bd6 9.0–0 a5 10.b5 Nh6 11.Nf3 0–0+=.

5.Qd3 a6 A) 6.Qd2 e6 (6...Bg6 7.Nf3 e6 8.c4 Ne7 9.Nc3 Nd7 10.Rc1 a5 11.b5 a4+=) 7.Nf3 Bh5 8.Be2 Bd6 9.0–0 Ne7 10.a3 c6 11.Rc1 a5=; B) 6.b5 Bg6 (6...e6 7.Qb3 Bg6 8.c4 c6 9.cd5 ed5 10.bc6 Nc6 11.Nc3 Nge7=) 7.Qb3 e6 8.c4 c6 9.cd5 ed5 10.bc6 Nc6 11.Nc3 Nge7=; C) 6.a3 e6 (6...Bg6 7.Qb3 e6 8.c4 c6 9.Nf3 Bd6 10.Be2 Ne7 11.c5 Bc7+=) 7.Nd2 Bg6 8.e4 de4 9.Ne4 Nc6 10.Ne2 Nge7 11.Nf4 Bf5=.

5.Qd3 c6 A) 6.Qd2 e6 (6...Bh5 7.Ne2 Nd7 8.Nf4 Bf7 9.Nd3 e6 10.Be2 Bd6 11.0–0 Ne7=) 7.c4 Nd7 8.c5 e5 9.Be2 Be7 10.b5 Nh6 11.Bc3 0–0=; B) 6.Qc3 e6 (6...Bg6 7.Nf3 e6 8.Be2 Qb6 9.a3 Bd6 10.Nh4 a5 11.Ng6 hg6=) 7.Nf3 Bg6 8.Be2 a5 9.Ba3 b5 10.Nbd2 ab4 11.Bb4 Bb4=; C) 6.Qb3 e6 (6...Bg6 7.Be2 e6 8.c4 Ne7 9.Nf3 dc4 10.Bc4 Nd5 11.0–0 b5=) 7.Nf3 Bd6 8.c4 Ne7 9.c5 Bc7 10.Be2 0–0 11.0–0 Nd7=.

5.Qd3 Qd7 A) 6.Qd2 Bg6 (6...e6 7.c4 Bg6 8.Nf3 Be4 9.a3 Nc6 10.cd5 Bd5 11.Be2 Bd6+=) 7.Nf3 Be4 8.Be2 e6 9.0–0 Bd6 10.a3 a5 11.ba5 Qa4=; B) 6.a3 e6 (6...Bg6 7.Qb3 e6 8.c4 Bd6 9.Nf3 c6 10.Be2 Ne7 11.0–0 dc4=) 7.Nd2 Bg6 8.e4 Nc6 9.Qe3 de4 10.Ne4 Nh6 11.b5 Nd4–/+; C) 6.Qb3 e6 (6...e5 7.de5 fe5 8.Be5 Nc6 9.Bb5 d4 10.Qb2 Qd5 11.Bc6 Qc6+=) 7.Nf3 Bd6 8.c4 dc4 9.Bc4 Ne7 10.b5 Nd5 11.0–0 Nb6+=.

5.Qd3 Nd7 A) 6.a3 e5 (6...e6 7.Qb5 Rb8 8.Nf3 Bd6 9.Qa4 a6 10.Be2 Ne7 11.0–0 b5=) 7.Nd2 a5 8.Qb5 Ra7 9.Qa4 Qa8 10.b5 Nb6 11.Qb3 Bd6=; B) 6.Qb5 Qb8 (6...Rb8 7.Qa4 e6 8.Nf3 c6 9.a3 Bg6 10.Be2 Bd6 11.0–0 Ne7=) 7.Qa4 c6 8.Nf3 e5 9.de5 fe5 10.Be2 Ngf6 11.Ng5 b5+=; C) 6.Nf3 e5 (6...e6 7.Qb5 Rb8 8.Qa4 c6 9.Be2 b5 10.Qa3 a5 11.Qa5 Qa5=) 7.Qb5 e4 8.Nfd2 Rb8 9.Qa4 c6 10.a3 Ra8 11.c4 dc4=.

5.Qe2 a6 A) 6.a3 e6 (6...Bg6 7.Nh3 Bf5 8.Nf4 Nh6 9.Nc3 e6 10.e4 de4 11.Ne4 Bd6+=) 7.Nd2 Nc6 8.Ngf3 Bh5 9.e4 Nge7 10.c4 de4 11.Qe4 Qd6=; B) 6.b5 e6 (6...c6 7.a4 Bg6 8.Qd2 e6 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 Be4=) 7.e4 de4 8.Qe4 Qd5 9.Qe2 ab5 10.Qb5 Nd7 11.Nf3 Qe4=; C) 6.Qd2 Bg6 (6...e6 7.Nf3 Bg6 8.c4 Bd6 9.c5 Be7 10.Be2 Nh6 11.0–0 0–0+=) 7.Nf3 e6 8.c4 Bd6 9.c5 Be7 10.Be2 Nh6 11.0–0 0–0+=.

5.Qe2 c6 A) 6.Qd2 Bg6 (6...e6 7.c4 Nd7 8.c5 e5 9.Be2 Qe7 10.Nf3 e4 11.Ng1 f5=) 7.Nf3 e6 8.c4 Ne7 9.Nc3 Bh5 10.a3 Ng6 11.Bd3 Bd6=; B) 6.Nd2 e5 (6...e6 7.a3 b5 8.Bc3 a5 9.ba5 Bd6 10.Qg4 g6 11.Bb4 Nh6+=) 7.de5 Bb4 8.Qg4 Bf8 9.Rb1 Nh6 10.Qh4 Nd7 11.ef6 gf6+=; C) 6.a3 Bg6 (6...Nd7 7.Nf3 Bh5 8.e4 e5 9.Nbd2 de4 10.Ne4 a5 11.de5 fe5+=) 7.Nh3 Bf5 8.Nf4 Nh6 9.f3 Nd7 10.g4 e5 11.e4 ef4+=.

5.Qe2 Qd6 A) 6.b5 Nd7 (6...Qd7 7.Nf3 e6 8.c4 Bh5 9.c5 Ne7 10.Nbd2 a6 11.ba6 Na6=) 7.Nf3 e5 8.Ba3 Qe6 9.Bf8 Nf8 10.de5 fe5 11.Ng5 Qf5=; B) 6.Ba3 Qb6 (6...Nd7 7.Nf3 Qb6 8.b5 0–0–0 9.Bb2 Re8 10.a4 e5 11.a5 Bb4=) 7.Qb5 Qb5 8.Bb5 Nd7 9.Nf3 Bg6 10.Ba4 e6 11.0–0 a5+=; C) 6.a3 Nd7 (6...Bg6 7.Qb5 Qc6 8.Qc6 Nc6 9.c4 e6 10.Nc3 Nge7 11.cd5 ed5+=) 7.Nd2 e5 8.c4 a5 9.b5 Rd8 10.c5 Qe6 11.Nb3 Ra8=.

5.Qe2 Nd7 A) 6.Qb5 Rb8 (6...Qb8 7.Nf3 e5 8.de5 c6 9.ef6 cb5 10.fg7 Bg7 11.Bg7 Qd6+/–) 7.Qa4 e6 8.Nf3 c6 9.a3 Bg6 10.Be2 Bd6 11.0–0 Ne7=; B) 6.Nf3 e5 (6...e6 7.a3 Bh5 8.e4 Ne7 9.c4 Nb6 10.Nbd2 dc4 11.Nc4 Nc4+=) 7.Qb5 e4 8.Nfd2 Rb8 9.Qa4 c6 10.a3 Ra8 11.c4 dc4=; C) 6.a3 e5 (6...a5 7.ba5 e5 8.Bc3 Ra7 9.Nf3 e4 10.Nfd2 Ne7 11.Bb4 f5=) 7.e4 de4 8.Qe4 a5 9.de5 fe5 10.Qb7 Ngf6 11.c3 Bd6=.

5.Nf3 Qd6 6.Nc3 (6.a3 Nd7 (6...a5 7.Bc3 Bg6 8.ba5 Qc6 9.Nh4 Bf7 10.a4 Qd7 11.Bb5 Nc6+=) 7.Nc3 Bh5 8.Bd3 e6 9.0–0 a5 10.b5 f5 11.Na2 Nb6=; 6.b5 Nd7 (6...a6 7.a4 ab5 8.Bb5 c6 9.Be2 Nd7 10.0–0 Qc7 11.Ba3 Ra4=) 7.Ba3 Qb6 8.Bd3 0–0–0 9.0–0 e5 10.Bf8 Rf8 11.Be2 Ne7=; 6.Ba3 Qb6 (6...Nd7 7.b5 Qb6 8.Bd3 0–0–0 9.0–0 e5 10.Bf8 Rf8 11.Be2 Ne7=) 7.b5 Nd7 8.Bd3 0–0–0 9.0–0 e5 10.Bf8 Rf8 11.Be2 Ne7=) 6...Qb4 7.Rb1 Qd6 8.Bd3 (8.Bc1 b6 9.e4 de4 10.Ne4 Qe6 11.Bd3 f5=) 8...e6 (8...Nd7 9.e4 e6 10.ed5 ed5 11.0–0 a6=) 9.Bc1 Nc6 (9...b6 10.e4 c6 11.0–0 Bg6=) 10.Rb7 Be7?? (better is 10...a6 11.0–0 Bh5+=) 11.Nb5+– Qb4 (11...Qd8 12.Nc7 Kf8 13.Na8 Qa8+–) 12.Bd2 (12.Bd2 Qa4 13.Nc7 Kf8 14.Na8 Qa2 15.Nc7+–) 1–0. pierre – toporos, internet, 2011.

5.Nf3 e5 6.a3 (6.de5 Bb4 7.Nbd2 Nd7 8.a3 Ba5 9.Rb1 Rb8 10.Bd4 c5 11.Bb2 Bh5=) 6...e4 7.Nfd2 a5 8.ba5 Ra5 9.c4 f5 10.c5 Nf6 11.Qb3 b6 =.

5.Nf3 e6 A) 6.Ba3 Nd7 (6...Bg6 7.c4 Ne7 8.Be2 dc4 9.Bc4 Nd5 10.0–0 a6 11.Re1 Nb4=) 7.Bd3 e5 8.de5 fe5 9.e4 Ngf6 10.Qe2 Bd6 11.c4 de4+=; B) 6.Bc3 Nd7 (6...Bd6 7.Bd3 Ne7 8.e4 de4 9.Be4 Nd5 10.0–0 c6 11.a3 a5=) 7.Bb5 c6 8.Be2 Bd6 9.0–0 Ne7 10.Nbd2 Bg6 11.a4 0–0=; C) 6.a3 Bg6 (6...a5 7.b5 Bg6 8.Be2 Nh6 9.c4 Be7 10.Nc3 c6 11.Qb3 Nd7+/–) 7.Nh4 Bf7 8.Bd3 Bd6 9.0–0 a5 10.b5 Nh6 11.c4 dc4+=.

5.Nf3 Bg6 A) 6.a3 e6 (6...a5 7.b5 e6 8.Be2 Be7 9.c4 Nh6 10.Nc3 Qd7 11.Qb3 c6+=) 7.Nh4 Bf7 8.Bd3 Bd6 9.0–0 a5 10.b5 Nh6 11.Nf3 0–0+=; B) 6.Nh4 Bf7 7.a3 Nd7 8.Nf3 a5 9.b5 e6 10.Be2 Bd6 11.c4 dc4+=; C) 6.c4 e6 (6...e5 7.de5 Bb4 8.Bc3 Bb1 9.Bb4 Be4 10.Nd4 c5 11.Qa4 Qd7+/–) 7.c5 a5 8.ba5 Ra5 9.Bc3 Ra8 10.Nh4 Bf7 11.Bb5 Nd7+=.

5.Nf3 Bh5 A) 6.b5 e6 (6...a6 7.c4 e6 8.c5 e5 9.de5 Bc5 10.Nbd2 Qe7 11.Qb3 c6+=) 7.Bd3 a6 8.0–0 ab5 9.Bb5 Nd7 10.Nbd2 Bb4 11.c3 Bd6=; B) 6.c4 e6 (6...e5 7.de5 Bb4 8.Nc3 fe5 9.cd5 Nd7 10.Qb3 Qe7 11.a3 Bc3+=) 7.c5 Ne7 8.Bb5 c6 9.Bd3 Nd7 10.0–0 e5 11.de5 fe5+=; C) 6.a3 e6 (6...a5 7.b5 e6 8.Bd3 c5 9.c4 cd4 10.ed4 dc4 11.Bc4 Qd7+=) 7.Bd3 a5 8.b5 c5 9.c4 cd4 10.ed4 dc4 11.Bc4 Qd7+=.

2...f6

3.a3 Nc6 4.e3 a6 5.Nf3 Bg4 6.Be2 Bf3 7.Bf3 e5 8.0–0 e4 9.Be2 Bd6 10.d3 Be5 11.Be5 Ne5 12.de4 de4 13.Qd8 Rd8 14.Nc3 f5 15.Rfd1 Nf6 16.Rd8 Kd8 17.Rd1 Ke7 18.Nd5 Nd5 19.Rd5 Ke6 20.c4 c6 21.Rd1 Re8 22.f4 Nf7 23.h3 Re7 24.g4 g6 25.c5 Rd7? 26.Bc4+– Ke7? 27.Rd7 Kd7 28.Bf7 Ke7 29.Bg8 h6 30.gf5 gf5 31.Bh7 Kf6 32.Kf2 Ke6 33.Kg3 Kf6 34.Kh4 Ke6 35.Kh5 Kf6 36.Kh6 Ke6 37.Kg5 Kf7 38.Bf5 Kg7 39.Be4 Kf7 40.h4 Kg7 41.h5 Kh8 42.h6 Kg8 43.f5 Kh8 44.f6 Kg8 45.Bg6 Kf8 46.h7 b5 47.h8Q 1–0. Fournier,Frederic – war_tactics, rated blitz game (3/0), 2002.

3.a3 Kf7 4.e3 g6 5.Nf3 Bg7 6.c4 e6 7.cd5 ed5 8.Nc3 Ne7 9.Be2 c6 10.d4 Re8 11.0–0 Kg8 12.Qc2 Nd7 13.Rfe1 Nb6 14.Na4 Bf5 15.Qb3 Nec8 16.Nb6 ab6 17.Bd3 (17.b5 Qd6+=) 17...Bd3= 18.Qd3 Nd6 19.Nd2 b5 20.g3 Nc4 21.Nc4 dc4 22.Qc2 f5 23.Rad1 Qd5 24.Qc1 h5 25.h4 Bf6 26.Qd2 Re7 27.Re2 Rae8 28.Rde1 Re4 29.Bc3 (29.f3 R4e6 30.Kg2 b6+=) 29...Bh4 (better is 29...Rg4!?–/+) 30.gh4?? (better is 30.f3 Bg3 31.fe4 Be1 A) worse is 32.ed5 Bd2 33.Bd2 cd5–+; B) 32.Qe1 Qe4 (worse is 32...fe4 33.Rg2+=) 33.Bb2 Qf3–/+; C) 32.Re1 Re4 33.Qh2+=) 30...Rg4 0–1. Fournier,Frederic (1850) – Adeimi,Michel (1975), Match Active, 2007.

3.a3 Nh6 4.e3 g6 (4...a5 5.b5=) 5.Nf3 Bg7 6.d3 0–0 7.Be2 Nf7 8.Nbd2 e5 9.0–0 Qd7 10.c4 d4 (better is 10...Nc6!?+=) 11.ed4+/– ed4 12.Bd4 b6 13.Bb2 Nc6 14.Ne4 Bb7 (14...Nd6 15.Re1+–) 15.Bf6 Bf6?? (better is 15...Nce5 16.Bg7 Kg7+–) 16.Nf6 Kg7 17.Nd7 Rad8 18.Nf8 Rf8 19.d4 Rd8 20.d5 Nce5 21.Ne5 Ne5 22.Qd4 Re8 23.f4 1–0. Fournier,Frederic – pear2525, Active, 2007.

3.a4 g5 4.e3 (better is 4.e4 Qd6 5.ed5 Qb4 6.Ba3 Qe4 7.Be2=) 4...Nc6? (better is 4...g4=) 5.b5+/– Nb4 (better is 5...Ne5!? 6.Be5 fe5 7.Qh5 Kd7+–) 6.c3+– 1–0. Wall,Bill – Guest5649, internet, 2002.

3.b5 a6 4.a4 ab5 5.ab5 Ra1 6.Ba1 Bd7 (6...Bf5 7.Nf3=+) 7.e3 c6 8.c4 dc4 9.Bc4 cb5 10.Qh5?? (Better is 10.Bg8 Rg8 11.Qh5 g6 12.Qh7=) 10...g6–+ 11.Qh4 Bg7 12.Bb3 Kf8 13.Nf3 Nh6 14.0–0 Nf5 15.Qb4 Na6 16.Qa3 b4 17.Qa2 Nc5 18.d4 Nb3 19.Qb3 Qb6 20.Nbd2 Bb5 21.Rc1 e6 22.Nc4 Bc4 23.Rc4 Kf7 24.Bb2 Re8 25.Rb4 Qa6 26.Rb7 Re7 27.Rb6 Qa7? 28.Ba3 Rd7 29.Bc5 Qa1+/– 30.Qb1 Qb1 31.Rb1 Bf8 32.Bf8 Kf8 33.g4 Ne7 34.Rb8 Kf7 35.Nd2 Nd5 36.Ne4 f5 37.Ng5 Kg7? 38.Ne6+– Kh6 39.gf5 gf5 40.Rg8 Nf6 41.Ra8 1–0. stoker – sharky7, Live Game Caissa's Web, 2004.

3.b5 c6 4.a4 e5 5.e3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 c6 5.a4).

3.c4 e6 4.b5 (4.a3 c5=) 4...dc4 (4...a6 5.cd5 ed5 6.e3=) 5.e3 (5.e4 Nd7=) 5...a6 (5...Nd7 6.Bc4 Nb6 7.Be2=) 6.a4 (6.Bc4 Ne7=) 6...ab5+= 7.ab5 Ra1 8.Ba1 Nd7 9.Bc4 Nb6 10.Be2 Nh6 (10...e5 11.d4=) 11.Nf3 Bd6 (11...e5 12.d4 e4 13.Nfd2=) 12.0–0 0–0 13.Nc3 (13.d4 Qd7=) 13...Kh8 (13...e5 14.Ne4=) 14.d4 f5 (14...Nf5 15.Ne4+=) 15.Ne5 (15.Qc2 Nf7+=) 15...f4 (15...Qh4 16.Qc2+=) 16.ef4 Rf4 17.g3 (17.Qd3 Qf8+=) 17...Rf8= 18.Ne4 Nf5 19.Bd3 (19.Bf3 Kg8=) 19...Nd5 (19...Nd7 20.Nd6 cd6 21.Nc4=) 20.Qe2 (20.Bb2 Kg8+=) 20...Be5 (20...Be7 21.Nc5+=) 21.de5+= c6 (21...Qe7 22.Bb2+=) 22.bc6 (22.Rd1 Bd7+/–) 22...bc6 23.Nd6 (23.Rd1 Nb4+/–) 23...g6 (23...Nd6 24.ed6 Qd6 25.Qe4+–) 24.Rb1 (24.Rc1 Qd7+/–) 24...c5 (24...Kg8 25.Bf5 ef5 26.Qc2+/–) 25.Bc4 (25.Bf5 gf5 26.Rc1 Qb6+/–) 25...Nde7 (25...Kg8 26.Ne4+/–) 26.Qd2 (26.Rd1 Nd5+–) 26...Nc6+/– 27.Rb8 (27.f4 Kg8+/–) 27...Qc7 (27...Nfd4 28.Bd4 Nb8 29.Bc5+/–) 28.Ra8 Ncd4 29.Bd4 (29.Rc8 Rc8 30.Bd4 A) 30...cd4?! 31.Nc8 (worse is 31.Be6 Qc1 32.Qc1 Rc1 33.Kg2 d3 34.Nf5 gf5–+) 31...Qc4 32.Nd6 Nd6 33.ed6=; B) 30...Nd4–/+) 29...cd4? (better is 29...Nd4 30.Qh6 Rg8+–) 30.Be6!!+– (30.Rc8?! Rc8 31.Nc8 Qc4=) 30...Qc6 (30...Be6 A pinning theme 31.Rf8) 31.Rc8 (31.Bc8?! Qa8 32.Bf5 Qa1 33.Kg2 gf5+/–; worse is 31.Nc8 Qe6 32.Qc2 Qe5–/+) 31...Rc8 32.Bc8 (32.Nc8?! Qe6 33.g4 Ng7=) 32...Qc3 (32...Nd6 33.ed6 Qc8 34.Qd4 Kg8+–) 33.Qf4 d3 (33...Qa1 34.Kg2 Qa8 35.Kh3 Qa7 36.Bf5 Qe7+–) 34.Bf5 d2 35.Bg4 Qc1 (35...Qa1 36.Kg2 Qa8 37.f3 Qd8 38.Nf7 Kg7 39.Nd8 h5 40.Ne6 Kg8 41.Qf8 Kh7 42.Qg7) 36.Kg2 1–0. Vokac,Marek (2525) – Sikora Lerch,J (2380), Open, Trinec CZE, 1998.

3.c4 Bf5 4.cd5 Qd5 5.Nc3 Qf7 6.e4 Bg6 7.Nf3 c6 8.b5 c5 (8...e5 9.d4+=) 9.Qa4+/– b6? (better is 9...e6+/–) 10.Nd5+– e6 (10...e5 11.Nb6! ab6 12.Qa8+–) 11.Nb6! ab6 12.Qa8 Qc7 13.Bc4 e5 14.a4 Nh6 15.a5 Be7 (15...ba5 16.Bc3 Bf7 17.Ba5 Qc8+–) 16.a6 Kd7 (16...Be4 17.Qe4 Qa7 18.Ne5 Kd8+–) 17.Be6 Ke6 18.Qd5# 1–0. marekt – tulku, internet, 2012.

3.d3 e5 4.b5 d4 5.c3 dc3 6.Bc3 Bd7 7.a4 Bc5 (7...a6 8.ba6 Na6 9.e3+=) 8.Nf3 Ne7 9.g3 0–0 10.Bg2 c6 11.0–0 cb5 12.ab5 Bb5 (12...Be6 13.d4 ed4 14.Bd4=) 13.Qb3 (better is 13.Ne5 Bc6 14.Nc6 bc6 15.d4+/–) 13...Nd5?? (better is 13...Qd5 14.Nd4 Qb3 15.Nb3 Nd7 16.Bb7 Rab8=) 14.Qb5+– Bb6 (14...Qd6 15.Nfd2 Nc3 16.Nc3+–) 15.Nh4 (better is 15.Ne5!? Nc3 16.Nc3 fe5 17.Bb7 Nc6 18.Qc6 Rb8+–) 15...Nc3 16.Nc3 Bd4 (16...Nc6+–) 17.Qb7 Nd7 18.Qa8 (18.Qb3!? Kh8 19.Ba8 Qa8+–) 18...Qa8 19.Ba8 Bc3 (19...Ra8 20.Rfc1 Nc5+–) 20.Ra7 Nc5 (20...Nb6 21.Be4 Nc8 22.Bd5 Kh8 23.Ra8+–) 21.Bd5 Kh8 22.Ra8 (better is 22.Rc1 Bd4 23.Rc4 Nd3 24.ed3 Rb8+–) 22...Ra8 23.Ba8 h6 (23...g6 24.Rc1 Bb4 25.Rc4+–) 24.Rc1 Na4 (24...Bb4 25.Rc4 Ba3 26.e3+–) 25.Rc3! Nc3 26.e3 Kg8 27.d4 (better is 27.Nf5!? h5+–) 27...ed4 28.ed4 Kf7 (28...Ne2 29.Kg2 Nd4 30.Nf3+–) 29.f4 (29.Kf1!? Ke6+–) 29...Ne2 30.Kf2 Nd4 31.Ke3 Nc2 32.Ke4 Ne1 (32...Nb4 33.f5+–) 33.Kf5 (33.Bd5 Kf8+–) 33...Nc2 34.Bd5 Kf8 35.Ng6 Ke8 36.Bc6 (36.Ke4!? Nb4+–) 36...Kf7 37.Bd5 Ke8 38.h3 Ne3 39.Ke6 Nd5 40.Kd5 Kf7 41.f5 (41.f5 h5 42.h4+–) 1–0. marinscrofan – mmp51, gameknot.com, 2008.

3.e3 a6 (--> 2…a6 3.e3 f6).

3.e3 b5 4.Bb5 c6 5.Be2 Ba6 (5...e5 6.a3+=) 6.Nf3 Be2 7.Qe2 Qb6 8.a3 a5 9.Bd4 Qc7 10.0–0 (10.ba5 Nd7+/–) 10...ab4 (10...e5!? 11.Bb2 e4+=) 11.ab4 Ra1 12.Ba1 Nh6 13.Bd4 e5+= 14.Bc5 Bc5 15.bc5 e4 16.Nd4+– g5 17.d3 g4 18.de4 Qg7? 19.ed5 cd5 20.Nd2 f5 21.N2b3 Rg8 22.Qb5 Nd7 23.c6 Ne5 24.Qd5 g3 25.fg3 f4 26.Rf4 Nhg4 27.Qe6 Kd8+– 28.Nf5 Qf6 29.Qg8 Kc7+– 30.Qh7 Kc6 31.Nfd4 Kd5 32.Qe4 Kc4 33.Rf6 Nf6 34.Qe5 Nd5 35.Qe4 Nc3 36.Qd3 Kb4 37.Nd2 Na4 1–0. Familyfork – Snare, Live Game Caissa's Web, 2004.

3.e3 b6 4.f4 Bb7 5.Nf3 a5 6.ba5 Ra5 7.Nd4 c5 8.Nb3 Rb5?? (better is 8...Ra8+/–) 9.Bb5+– Bc6 10.a4 c4 (10...Nh6 11.Nc3 Nf5 12.0–0+–) 11.Nd4 Bb5 (11...Qd7 12.Nc3 e6 13.0–0+–) 12.ab5 e5 (12...Qd7 13.Nc3 e6 14.Ra8+–) 13.fe5 fe5 (13...Qc7 14.e6 Qe5+–) 14.Qh5 Kd7 15.Ra7 Kd6 (15...Kc8 16.Qf5 Nd7 17.Ra8 Kc7 18.Ne6 Kb7 19.Nd8 Kc7 20.Ra7 Kc8 21.Qd7 Kb8 22.Nc6) 16.Ba3 1–0. Fritz11 – jumbo, casual, 2013.

3.e3 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 f6).

3.e3 f6 4.c4 dc4 5.Bc4 b5 6.Qf3+= c6 7.Bg8 Rg8 8.Qh5 g6 9.Qh7 Rg7 10.Qh4 a5 11.ba5 Ra5 12.d4 Ra4 (12...Be6 13.a3+=) 13.Nc3 (13.Ne2 b4+/–) 13...Rb4+= 14.Rb1 c5 (14...Bf5 15.a3 Rc4 16.Rd1+=) 15.Nge2 (15.Nf3 Qa5 16.0–0 Rb2 17.Rb2 Qc3 18.Rb5+/–) 15...Bf5 (15...cd4!? 16.ed4 Bf5+=) 16.e4+– cd4? (better is 16...Bd7 17.dc5 Na6+–) 17.ef5 Nc6 (17...Na6 18.Bc1 Qa5 19.Rb4 Nb4 20.Ne4 Qa2 21.Nc5+/–) 18.Qe4 Qd7? (18...Ne5 19.Nd1 Qa5+–) 19.Nd5 Rc4 (19...gf5 20.Qf3 Rc4+–) 20.Nf6 (20.Nf6 Kd8 21.Nd7 Kd7 22.Qd5 Kc7 23.Nd4 Nd4 24.Bd4 Rd4 25.Qd4+–) 1–0. Wall,Bill – Guest6900, internet, 2001.

3.e3 h5 4.c4 dc4 5.Bc4 a5 6.Qb3 e6 (6...Nh6 7.ba5 e5 8.d4+=) 7.Be6+/– Ra6?? (better is 7...Be6 8.Qe6 Ne7+/–) 8.Bg8+– ab4 (8...Qd7 9.b5 Rb6+–) 9.Qf7# 1–0. Waibel,Ulrich – Geisslinger,Robert, 1995.

3.e4 c6 4.ed5 Qd5 5.c4 Qe4 6.Qe2 Qg6 7.Nc3 e5 8.a3 Bf5 9.Nf3 Qf7 10.d4+/– Nd7 11.Nh4 Nh6 12.d5 c5 13.Nb5 Nb6 14.d6+– Kd7 15.Nf5 Nf5 16.bc5 Na4 17.Qe4 Nc5 18.Qf5 Ne6 19.Be5! Rc8 20.Rd1 Rc5 21.Rd5 b6 22.Nc7 Qg8 23.Bg3 Rc6 24.c5! Rc5 25.Bb5 Kc8 26.d7 Kb7 If Black now only could play Rc1... 27.Ba6 Kb8 28.d8Q Nd8 29.Qc8# (29.Rd8#) 1–0. Mroz,Antoni – Lewicki,Tadeusz, corr Poland, 1989.

3.Nf3 Na6 4.a3= e6 5.e3 c6 6.c4. pierre – commes, internet, 2010.

3.Nf3 c6 4.e3 Nh6 5.Bd3 e6 6.0–0 Nf5 7.Nh4 Nh4 8.Qh5 Ng6 9.Bg6 hg6 10.Qh8 Ke7 11.Qh3 Na6 12.a3 e5 13.d4 Bh3 0–1. guest223 – guest122, ICC, 1999.

3.Nf3 Bd7 4.e3 e5 5.d4 Bb4 6.Bc3 Ba3?? 7.Na3+– e4 8.Nd2 Ne7 9.Nb3 0–0 10.Bb5 c6 11.Be2 Be6 12.Nc5 Bf7? 13.Nb7 Qc7 14.Nc5 a5 15.0–0 Nd7 16.Nd7 Qd7 17.Qd2 Rfb8 18.Rfb1 Ng6 19.Rb8 Rb8 20.Rb1 Rb1 21.Nb1 Ne7 22.Ba5 Qb7 23.Qe1 Ng6 24.Bb4 Be6 25.a3 Kf7 26.c3 Ne7 27.Nd2 Nc8 28.f3 Na7 29.fe4 Nb5 30.ed5 Bd5 31.c4 Bg2 32.cb5 cb5 33.Qg3 Bd5 34.Bf3 Bf3 35.Qf3 Qc7 36.Qd5 Kg6 37.Qb5 Qc1 38.Kf2 Qh1 39.Nf3 Qb1 40.Nh4 Kh6 41.Qe2 Qe4 42.Nf3 Kg6 43.Qa2 h5 44.a4 h4 45.a5 Kh5 46.a6 f5 47.a7 h3 48.a8Q Qg4 49.Ne5 Qg2 50.Qg2 hg2 51.Kg2 (51.Kg2 Kh6 52.Qf7 Kh7 53.Bf8 Kh6 54.Qg6#; 51.Qf7 Kh4 52.Be7 g5 53.Qh7#) 1–0. alwayslosing (1945) – bar (1905), net–chess.com, 2008.

3.Nf3 Nd7 (--> 2...Nd7 3.Nf3 f6).

3.Nf3 e6 (--> 1.b4 d5 2.Bb2 e6 3.Nf3 f6).

3.Nf3 Bg4 4.h3 Bf3 5.ef3 e5 6.b5 b6 7.Be2 Bc5 8.0–0 Ne7 9.d3 d4 10.Nd2 Ng6 11.Ne4 Be7 12.Re1 Nd7 13.a4 Nc5 14.Qc1 Nh4 15.f4 f5 16.Nc5 Bc5 17.fe5 Qe7 18.Bh5 g6 19.Bd1 0–0–0 20.g3 Rd5 21.f4 h6 22.gh4 Qh4 23.Bf3 Rdd8 24.Bg2 g5 25.Rf1 g4 26.hg4 Qg4 27.a5 Rdg8 28.Rf2 h5 29.ab6 Bb6 30.Qd1 Qg6 31.Qf3 h4 32.Qb7 Kd8 33.Qd5 Ke7 34.Re2 h3 35.Ba3 Ke8 36.e6 hg2 37.Qa8# 1–0. Machete99 – Ncheck, ICC, 2002.

3.f4 Be6 4.Nf3 Bf7 (4...Qd6!?+=) 5.a3= Nd7 6.e3 c6 7.Be2 Nh6 8.0–0 ½–½. Francke,Dirk – Mewes,H (1895), Dresden GER, 2013.

3.g3 e5 4.b5 (4.a3 a5+=) 4...a6–/+ 5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 (7...Ne7 8.f4 Ng6 9.fe5 fe5 10.e4+=) 8.e4 (8.bc6 bc6 9.Bg2 Bd6+=) 8...Ne7 (8...de4 9.Bg2+=) 9.Bg2 (9.d4 ed4 10.Qd4 de4 11.Qe4 Bf5–/+) 9...Be6 (better is 9...Qa5 10.Bc3 Qb5–/+) 10.Be5?? (better is 10.f4 de4 11.Be4 ef4 12.gf4+=) 10...fe5–+ 11.Qh5 Bf7 (11...Ng6!? 12.Nf3 Nd7 13.Ng5–+) 12.Qe5 de4 (12...Nd7 13.Qd4–+) 13.Be4 (13.Nc3 Nd7 14.Qe4 Bg6–+) 13...Nd7 14.Qg5 (14.Qd4 cb5 15.Bb7 Qc7–+) 14...h6 (14...Nf6 15.Nc3–+) 15.Qe3 Qb6 (15...Nf6 16.Nc3–+) 16.Nc3–/+ Qe3 17.fe3 g5 (17...Nf6 18.Bf3–/+) 18.Nge2 Bg7 (18...Nf6 19.Rf1 Bg7 20.Nd4–/+) 19.0–0 (19.d4 Nb6–/+) 19...0–0 (19...Ne5 20.Ra1 Nc4 21.Ra7 Nd2 22.Rb7 cb5 23.Bd3–/+) 20.bc6 (20.d4 g4–/+) 20...bc6 21.Ra1 (21.d4 g4–/+) 21...Ne5 (21...Nd5 22.Ra7 N7b6 23.Nd5 cd5 24.Bd3–+) 22.Ra7 Nd5 23.Bd5 (23.h3 Nc4 24.Nb1 Rb8–+) 23...Bd5 (23...cd5 24.Nd4–+) 24.Nd5 cd5 (better is 24...Nf3 25.Kg2 cd5–+) 25.d3? (25.Nd4 Nc4 26.Nb3 g4–+) 25...Nc6 (better is 25...Ng4!? 26.c3–+) 26.Rd7 (26.Ra4 Rb8 27.d4 Rb4–+) 26...Rf5 (26...Nb4 27.Rc7–+) 27.Rd6 (better is 27.g4!? Rf3 28.Rd5–/+) 27...Nb4–+ 28.Rd8 (28.c4 Re5 29.Rd8 Kf7 30.Rd7 Kf6–+) 28...Kh7 29.Rc8 Re5 (29...Rf3 30.e4–+) 30.Nd4 (30.Kf2 Re7–+) 30...Kg6 (better is 30...Re3!? 31.Rc7 Re5–+) 31.Nc6–/+ Nc6 32.Rc6 Kf5 (32...Kf7 33.Kf2–/+) 33.Kf2 Re6 (33...g4 34.c4 dc4 35.e4 Kg5 36.Rc4–/+) 34.g4 Kf6 35.Rc5 Rd6 36.Kf3 (36.d4 Ke6+=) 36...Ke6 (36...Kf7 37.Rc7 Kg6 38.d4–/+) 37.Rc7 (37.d4 Ra6–/+) 37...Rd7 (37...Bf8 38.h3–/+) 38.Rc8 (38.Rc6 Ke7–/+) 38...d4 (38...Rf7 39.Ke2–/+) 39.ed4 Rd4 40.h3 (40.Re8 Kd5 41.Rd8 Kc5 42.Rc8 Kb6–/+) 40...Rf4 (40...Kd7 41.Rc5–/+) 41.Ke2 Rf8 (41...Kd7 42.Ra8 Bd4 43.Ra6–/+) 42.Rc6 (42.Rf8 Bf8 43.d4 Kd7+=) 42...Kf7 (42...Kd5 43.Ra6–/+) 43.c3+= Re8 44.Kf3 Re6 (44...Re1 45.Rc7 Kg6 46.d4–/+) 45.Rc4 (45.Rc7 Kg6+=) 45...Rd6 (45...Be5!?–/+) 46.d4 Re6 (46...Rf6 47.Ke4+=) 47.Rc8 (47.Rc7 Kg6+=) 47...Re1 (47...Re7 48.d5+=) 48.d5 (48.Rc7 Kg8+=) 48...Rd1 (48...Be5 49.Rc6+=) 49.c4 (49.Ke4 Bf6+=) 49...Be5 (49...Rd3 50.Ke4 Rh3 51.Rc7 Kg6 52.d6–/+) 50.Ke4 (50.c5 Rh1 (worse is 50...Rd5 51.Ke4 Rd2 52.Ke5+–) 51.Ke4 Re1 52.Kd3 Bf4=) 50...Bd6 (better is 50...Re1!? 51.Kd3 Bf6–/+) 51.Rc6= Re1 52.Kd3 Ke7 (52...Bf8 53.Rc7 Kf6 54.c5=) 53.c5+= Rd1 54.Ke2 (54.Ke4 Re1 55.Kf3 Bc5 56.Rc5 Rh1+/–) 54...Rd5= 55.cd6 Rd6 ½–½. Wall,Bill – Hayes,Dan, Dayton, OH, 1980.

3.h3 e5 4.e3 Bb4 5.a3 Ba5 6.Bb5 Bd7 7.Bd7 Nd7 (worse is 7...Kd7 8.Qg4 f5 9.Qf5 Kc6 10.Nf3+– (10.Qe5?! Nf6+–); 7...Qd7?! 8.f4 ef4 9.ef4–/+) 8.Nc3 Nb6 9.Nge2 Ne7 10.0–0 Nc6 11.d3 d4 12.ed4 ed4 13.Nb5 Bc3 14.Bc3 dc3 15.Nec3?? (better is 15.Nf4 Qd7 16.Re1 Ne5 17.Qh5 Kd8 18.Nc3+=) 15...a6–+ 16.Re1 Kf7 17.Qh5 g6 18.Qg4 f5 19.Qe2 Nd4?? (better is 19...ab5 20.Nb5 Qd7–+) 20.Nd4+– Qd4 21.Qe7 Kg8 22.Qe6?? (better is 22.Qc7 Rc8 23.Qb7 Qc3 24.Qb6+–) 22...Kg7+= 23.Qe7 Kg8 24.Qe5?? (better is 24.Qc7 Rc8 25.Qb7 Qc3 26.Qb6+–) 24...Qe5= 25.Re5 Kf7 26.Rae1 Rae8 27.Re8 Re8 28.Re8 Ke8 29.Kf1 c5 30.Ke2 c4 31.Ke3 cd3 32.Kd3 Ke7 33.Kd4 Kd6 34.f4 Nd7 35.Na4 b5 36.Nc3 Kc6 37.Nd5 a5 38.c3 Nb6 39.Nb6 Kb6 40.Kd5 h6 41.Kd6 Threatening h5 41...g5?? (41...h5 42.h4 Kb7+–) 42.g3 gf4 43.gf4 h5 44.h4 a4 45.Kd5 Ka6 46.Kc5 Ka5 47.Kd5 Kb6?? (47...Ka6 48.Ke5 Kb6 49.Kf5 Kc5+–) 48.Ke5 (better is 48.Kd6 Kb7 49.Ke5+–) 48...Kc5 49.Kf5 Kc4 50.Ke4 (better is 50.Kg5 Kc3 51.f5+–) 50...Kc3= 51.f5 b4 52.f6?? (better is 52.ab4 a3 53.f6=) 52...b3–+ 53.f7 b2 54.f8Q b1Q 55.Kd5 Qh1 56.Kc5 Qh4 57.Qg7 (57.Qf3!? Kd2 58.Qd5 Kc1 59.Kb5–+) 57...Kb3–+ 58.Qb7?! (58.Qe5 Qc4 59.Kb6–+) 58...Ka3 59.Qf3 Kb2 60.Qe2 Kb3 (better is 60...Kc1–+) 61.Qd3= Ka2 62.Qc2 Ka3 63.Qc3 Ka2 64.Qc2 Ka1 65.Qc1 Ka2 66.Qc2 Ka3 ½–½. Maly,Guenther (1735) – Fankhauser,Daniel (1655), remoteschach.de, 2011.

3.a3 b5

4.e3 a6!? =.

4.e3 c6= 5.d3 a5 6.Nd2 Bf5 (6...e5 7.c3+=) 7.Ngf3 e6 8.Be2 (8.Nd4 Nh6 9.e4 Bg4+=) 8...Bd6 (8...ab4 9.e4 de4 10.de4–/+) 9.0–0 (9.e4 Bg6=) 9...Ne7 (9...ab4 10.e4 de4 11.de4=) 10.e4= de4 11.de4 Bg4 12.e5 Bf3? (12...fe5 13.Ne4 Bc7 14.Ne5 Qd1 15.Bd1 Bd1 16.Rfd1+/–) 13.Nf3 (better is 13.ed6 Bg2 14.de7+–) 13...fe5+= 14.Ne5 Be5 (14...0–0 15.c4+=) 15.Be5+/– 0–0 16.c4 Ng6 17.Bc3 Qg5 18.Qd4 Nf4 19.Bg4?? (better is 19.Bf3+=) 19...Qg4–+ 20.g3 (20.Qg7 Qg7 21.Bg7 Kg7 22.cb5 ab4 23.ab4 Ne2 24.Kh1 Ra1 25.Ra1 cb5 26.f3–+) 20...Nh3 (better is 20...Ne2 21.Kg2 Qf3 22.Kh3 Nd4–+) 21.Kg2 Nf4 22.Kg1 Ne2 23.Kg2 Nd4 (better is 23...Qf3 24.Kh3 Nd4 25.Rad1–+) 24.Bd4 Qd4 25.Rad1 Qe4 26.Kg1 Na6 (better is 26...Qc4 27.Rc1 Qb3 28.Rce1 ab4 29.Rb1 Qa3 30.Rbe1–+) 27.cb5 cb5 28.ba5 Rad8 (28...Nc5 29.Rde1 Qf5 30.f4–+) 29.Rde1 Qf3 30.Rb1 Rd2 31.Rb5 Rc8 (31...Rf2 32.Rf2 Qf2 33.Kh1 Qf1) 32.Rbb1 Rcc2 33.Rbe1 Rf2 34.Rf2 Qf2 35.Kh1 Qh2 0–1. Fournier,Frederic (1790) – jm3 (1675), rated blitz game, 2002.

4.e3 Nd7? 5.Bb5 (better is 5.Qh5 g6 6.Qd5+–) 5...c6? (better is 5...Bb7+/–) 6.Bc6+– Bb7 (6...Rb8 7.Qh5 g6 8.Qd5 Qc7+–) 7.Bb7 Qc8 (7...Rb8 8.Qh5 g6 9.Qd5 e5+–) 8.Bc8 e5 9.Bd7 (better is 9.Bb7 Rb8 10.Bd5 a5+–) 9...Ke7 10.Bc6 (better is 10.Qg4 f5 11.Qf5 Nf6 12.Qe6 Kd8+–) 10...Nh6 11.Ba8 Kd7 12.Bd5 Bc5 13.bc5 Ra8 14.Ba8 Nf5 15.Be4 g5 16.Bf5 Kc6 (16...Ke8 17.Qh5 Ke7 18.Qh7 Ke8 19.Qg8 Ke7 20.Nc3 g4 21.Nd5) 17.Nf3 (17.Qf3 Kc5 18.Qb7 h6 19.Nc3 Kd6 20.Ne4) 17...a5 (17...a6 18.Nd4 Kc5 19.Qf3 e4 20.Qg3 Kb6 21.Qb8 Kc5 22.Qc7 Kd5 23.Nc3) 18.d4 (18.Qe2 Kc5 19.Qa6 a4 20.Be4 h5 21.Qc6) 18...a4 (18...h6 19.de5 Kb7 20.Qd7 Kb8 21.c6 fe5 22.Qb7) 19.de5 Kb5 (19...Kb7 20.Qd7 Kb8 21.c6 fe5 22.Qb7) 20.ef6 (20.Qd7 Kc4 21.Nbd2 Kc5 22.Bd4) 20...g4 (20...Kc5 21.Qd7 Kb6 22.Bd4 Ka5 23.Qd5 Ka6 24.Bd3) 21.Nd4 (21.Qd7 Kc5 22.Bd4 Kc4 23.Ne5) 21...Kc4 (21...Kc5 22.Nb5! Kb5 23.Qd5 Kb6 24.Bd4 Kc7 25.Qd7 Kb8 26.Qc8) 22.Qd3 (22.Ne6 Kb5 23.Qd3 Kc6 24.Be4) 22...Kd5 (22...Kc5 23.Qb5 Kd6 24.Qc6 Ke5 25.Qe6) 23.Nb3 Kc6 24.Qd6 (24.Qd7) 24...Kb5 (24...Kb7 25.Qb6 Ka8 26.Be4) 25.Bd3 1–0. Fournier,Frederic (1685) – Maypu, Active, 2007.

4.e4!? c6 5.ed5 Qd5 6.Nc3 Qe6 7.Be2 +=.

3.a3 e5

(--> 1.b4 e5 2.Bb2 f6 3.a3 d5).

4.e3 Qd6 (--> 1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.e3 f6).

4.e3 Bd6 5.Nf3 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 f6 5.e3).

4.e3 Bd6 5.Nf3 Be6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Be6 5.Nf3 Bd6).

3.a3 Bf5

4.d4 e6 5.e3 Bd6 6.Nf3 Ne7 7.c4 dc4 8.Bc4 c6 (8...a5 9.b5=) 9.0–0 b5 10.Bd3 0–0 11.Bf5 Nf5 12.Nc3 a5 13.Ne4 ab4 14.Nd6 (14.Qb3 Qe7=) 14...Qd6 15.Qb3 Qd5 16.Qb4 Nd7 17.Rfc1 Ra4 18.Qc3 Rc4 (18...Rc8 19.Qc2 Nd6 20.Rd1+=) 19.Qd2 Rc1 20.Qc1 c5 21.dc5 Nc5 22.Bd4? (22.Qf1 Qc4=) 22...Nd4?? (better is 22...Nb3 23.Qb1 Nfd4 (23...Nbd4?! 24.Nd4 Nd4 25.ed4–/+) 24.ed4 Rc8–+) 23.Nd4= (23.ed4? Nb3 24.Qb2 Na1 25.Qa1 Rc8–+) 23...e5 24.Nf3 (better is 24.Nf5!? Kh8 25.Qd1=) 24...Nb3–/+ 25.Qd1 Qc4 (better is 25...Qd1!? 26.Rd1 Ra8–/+) 26.Rb1= Rc8?? (26...Na5 27.Qd7 Nb3 28.Nh4=) 27.h3 (better is 27.Rb3 Rc5 28.e4+–) 27...Nc5 28.Nd2 Qa4 29.Qa4 ba4 30.Rc1 Rc7 31.Ne4 Ne6 32.Rc7 Nc7 33.Nc5 (33.Nc3!?+/–) 33...Nb5= 34.Na4 Na3 35.Kf1 Kf7 36.Ke2 Ke6 37.Nc5 Kd5 38.Nd3 Nc4 39.Nb4 Kc5 40.Nc2 f5 41.f3 g5 Black prepares f4 42.Kd3 f4 43.ef4 gf4 44.Ke4 Kd6 45.Ne1 Ne3 (45...Ke6!?+=) 46.Nd3 Exerts pressure on the backward pawn 46...Ng2 (better is 46...Nc4=) 47.Ne5+/– h5 (better is 47...Ne1!?+/–) 48.Nd3+– Ke6?? (48...h4+–) 49.Nf4 Nf4 50.Kf4 Kf6 51.h4 Kg6 52.Ke5 Kh6 53.f4 Kg6 54.f5 Kf7 55.f6 Kf8 56.Kf5 Kf7 57.Kg5 Ke6 58.Kg6 (58.Kg6 Ke5 59.f7+–) 1–0. Fournier,Frederic (1720) – cissco (1815), Active, 2004.

4.e3 a5 5.b5 =.

4.e3 Nc6 5.Bb5 (5.d4 e6=) 5...Qd7 6.Nf3 0–0–0 (6...e5 7.Nc3=) 7.0–0 (7.Nd4 e5 8.Nf5 Qf5 9.Bc6 bc6+=) 7...Kb8 (7...e5 8.Nc3=) 8.c4 (8.Nd4 e5 9.Nf5 Qf5 10.Bc6 bc6+=) 8...dc4 (8...Bd3 9.Nd4 Bf1 10.Qf1=) 9.Qa4 (9.Nd4 Bd3 10.Bc6 bc6+=) 9...a6 (9...e5 10.Bc6 Qc6 11.Qc6 bc6 12.Rc1=) 10.Bc6 Qc6 11.Qc6 bc6 12.Nc3 (12.Nd4!? Bd7 13.f4=) 12...e5=+ 13.d4? (better is 13.e4 Bg4 14.Rfd1=+) 13...e4?? (13...cd3 14.Na4 c5 15.Nc5 Bc5 16.bc5 Rd5–+) 14.Nd2 Be6 (14...a5 15.Nce4 ab4 16.ab4 Bb4 17.Rfb1+/–) 15.Nde4 Bf5 16.Nc5 (16.Rfc1!?+/–) 16...Bc5+= 17.bc5 Kb7 (17...Bd3!? 18.Rfd1 Ne7+/–) 18.e4+/– Bg6 (19.Rfd1 f5+/–) +/–. kamera (1630) – radhamesmejia, GameColony.com, 2002.

3.a4 e5

4.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.a4).

4.b5 Be6 5.e3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.a4).

4.b5 Be6 5.e3 Nd7 6.d4 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 Nd7 6.a4).

3.b5 Bd7

4.a4 a6 5.ba6 (5.e3 Bf5=) 5...Na6+= 6.e3 e5 (6...Bf5 7.Ba3+=) 7.c4 (7.d4 ed4 8.Bd4 Bf5=) 7...Nc5 Increasing the pressure on the isolated pawn on a4 (7...Bf5 8.d4 ed4 9.Bd4 Bb4 10.Nd2+=) 8.cd5 Na4 9.Ra2 (9.Ba3 Ne7+=) 9...Nb2 (9...Ne7 10.Qh5 g6 11.Qf3+=) 10.Rb2 Qc8 (10...Ra7 11.d4 Bd6 12.Nf3=) 11.Qb3 (11.d4 ed4 12.Qd4 Bd6=) 11...b6 (11...Ne7 12.Nf3=) 12.Nc3 (12.Nf3 Ra1=) 12...f5 (12...Ne7 13.Nf3=) 13.Bc4 (13.Nf3 Bd6=) 13...Bc5 (13...Ra1 14.Rb1 Rb1 15.Qb1=) 14.Nf3+= e4 15.Ne5 Nf6 16.0–0 0–0 17.d6 (17.d4 Bd6+=) 17...Kh8= 18.Nf7 Kg8 19.Ra2 c6 (19...Ra2 20.Qa2 Bb4 21.Rb1+=) 20.Na4 (better is 20.Ra8 Qa8 21.Na4+/–) 20...Qe8?? (better is 20...b5 21.Ng5 bc4 22.Qc4 Nd5 23.Nc5 Ra2 24.Qa2 h6+/–) 21.Nc5+– bc5 (21...Ra2 22.Nd7 Nd7 23.Ng5 Kh8 24.Qa2 Ne5+–) 22.Nd8 (22.Nd8 Nd5 23.Ra8+–) 1–0. Wall,Bill – JonathanRK, internet, 1999.

4.a4 e5 5.c4 dc4 6.e4 +=.

4.e3 e5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Bd7).

4.e3 Bf5 =.

3.b5 e5

(--> 1.b4 e5 2.Bb2 f6 3.b5 d5).

4.e3 Bd6 5.d4 Be6 6.de5 fe5 7.Nd2 Nf6 8.c4 c6 9.Ngf3 Nbd7 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 Nd7 6.de5 fe5 7.Nf3 Bd6 8.Nbd2 Ngf6 9.c4 c6).

4.e3 Be6 5.Nf3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3).

3.c4 dc4

4.e3 Be6 5.Na3 Nc6 6.Nc4 Qd5 (6...a6 7.b5 ab5 8.Qh5 g6 9.Qb5=) 7.b5+= Nb4? (better is 7...Nd8+=) 8.Qb3+– c5 (8...a5 9.a3 Nc6 10.bc6 b5 11.Na5 Qb3 12.Nb3 Bb3+–) 9.a3 0–0–0?? (9...Nc6 10.bc6 Qc6+–) 10.ab4 Kb8 (10...Kd7 11.Ra7 Ke8 12.bc5 Qc5 13.Rb7+–) 11.Qa4 a6 (11...Kc7 12.Qa7 Bf7 13.Qa5 b6 14.Qb6 Kd7 15.bc5+–) 12.ba6 Bd7 (12...ba6 13.Qa6 Rd7+–) 13.a7 Kc7 14.Qa5 b6 15.Qb6 Kc8 16.Qb8 1–0. Woelfelschneider,Peter – Schatz, 2009.

4.e4 =+.

3.c4 c6

4.e3 e5 (--> 1.b4 c6 2.c4 d5 3.e3 e5 4.Bb2 f6).

4.e3 e5 5.a3 Be6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Be6 5.c4 c6).

3.c4 d4

4.e3 de3 5.fe3 =+.

4.e3 e5 5.c5 Na6 6.Bc4 Nb4 7.Bg8 Rg8 8.Qh5 g6 9.Qh7 Be6 10.Nf3 Nd3 11.Ke2 Nb2 12.Nh4 Bg4 13.f3 Be6 14.Na3 de3 15.de3 Qd3 16.Kf2 Qa3 17.Ng6 Bc5 18.Rhe1 0–0–0 19.Rac1 Nd3 20.Kg3 Nc1 21.Rc1 Qe3 22.Kh4 Qg5# 0–1. guest444 – guest1309, ICC, 1999.

4.e3 e5 5.ed4 ed4 6.a3 c5 (6...Nc6 7.Qh5 g6 8.Qe2 Kf7 9.b5+=) 7.Bd3 Nc6 (7...Qe7 8.Ne2+=) 8.Ne2 (better is 8.Qh5!? Kd7 9.Nf3+=) 8...cb4+= 9.0–0 Nh6 (9...Bd6 10.ab4 (10.Nd4? Nd4 11.Re1 Ne6–+; 10.Bd4? Nd4 11.Nd4 Be5 12.Qa4 Kf7 13.ab4 Qd4–+) 10...Nb4 11.Be4=) 10.Be4 d3 11.Nc1 Bf5 12.Qh5 g6 13.Qh4 Bg7 (13...Ne5 14.Re1 Qe7 15.Be5 fe5 16.Qe7 Be7 17.ab4 Be4 18.Re4 Nf7+/–) 14.Bd5 (14.ab4 Qe7 15.Re1 Kd8+/–) 14...Qd7 (better is 14...Qe7!?=) 15.Bf6+/– Bf6 (15...Ng8!? 16.Re1 Kf8 17.Bg7 Kg7 18.Bc6 bc6 19.ab4 Nf6+/–) 16.Qf6+– (16.Qf6 Rf8 17.Re1 Ne7 18.Qh4+–) 1–0. pcmvr – wvmaniac (2600), net–chess.com, 2016.

4.e3= e5 5.ed4 ed4 6.Qe2 Ne7 7.Nf3 Nbc6 (7...a5!?=) 8.b5+= d3 9.Qd3 Qd3 10.Bd3 Nb4 11.Ke2 Nd3 12.Kd3 Ng6 13.Kc3 Bg4 14.d4 Nf4 15.Nh4 0–0–0 16.f3 Bh5 17.Nd2 Ne2 18.Kd3 Nf4 19.Kc2 Bb4 20.g3 Bd2 21.Kd2 (worse is 21.gf4 Bf4 22.Ng2 Bd6+=) 21...Ne6 22.Ke3 Rhe8 23.d5 g5 24.g4 (24.de6 Re6 25.Kf2 Rd2 26.Kg1 gh4–+; 24.Bf6?! gh4 25.Bd8 Ng5 26.Kf4 Nh3 27.Kf5 Kd8=) 24...Bf7 25.Nf5 (25.Bf6 Nf4 26.Kd4 Rd6 27.Bg5 Ne6 28.Ke5 Ng5 29.Kf4 Bd5+/–) 25...Nf4+= 26.Kd4 c6 27.Rae1 cd5 28.Re8 Be8 29.Ne7 Kb8 30.Nd5 Bf7 31.h4 Nd5 32.cd5 Bd5 33.Ke3 Re8 34.Kf2 Rf8 35.a4 Rf7 ½–½. Kucharkowski,Jens – Klausner,Helmut, CiF, 2003.

4.Nf3 e5 5.b5 Bb4 6.e3 a6 (6...c5!?=) 7.a3 Ba5 8.ed4 ed4 9.Bd4 Nc6?? (Better is 9...Ne7+=) 10.bc6+– bc6 (10...Ne7 11.cb7 Bb7 12.Qa4 Nc6 13.Bc3 Bc3 14.Nc3+– (14.dc3?! 0–0+–)) 11.Be2 Ne7 12.Qb3 c5 13.Bc5 0–0 14.Be7 Qe7 15.c5 Be6 16.Qe3 Rae8 17.Nd4 c6 18.0–0 Bc7 19.Ba6 Qc5 20.Nc3 Qd6? 21.Bd3 Qh2 0–1. cytc – vello01, Live Game Caissa's Web, 2004.

4.Nf3 e5 5.c5 Bf5 +=.

4.Nf3 e5 5.g3 a6 (better is 5...Bb4!? 6.Qa4 Nc6–/+) 6.Bg2+= c6 (6...Be6 7.Qb3+=) 7.Qb3 Be6 8.Na3 (8.0–0!?=) 8...b5–/+ 9.0–0 Ne7 (9...a5 10.d3–/+) 10.e3+= de3 (10...a5 11.ba5 (11.ed4? ab4 12.Nb5 cb5–+) 11...de3 A) worse is 12.Qe3 Nf5 (worse is 12...Ra5 13.cb5 Nf5 14.Qc3+=; 12...bc4?! 13.Rfc1+=; 12...Qa5?! 13.Nd4 Bc4 14.Nc4 bc4 15.Nc2+=) 13.Qb3 Qa5 14.Nb5 cb5 15.Qb5 Qb5 16.cb5 Ra2 17.Ra2 Ba2–/+; B) 12.fe3+=) 11.de3= Qc8 (11...a5 12.Rfd1 Qc7 13.Nd2=) 12.Rfd1 (12.Bc3 a5=) 12...Kf7 (12...a5 13.ba5 Nf5 14.Nd2 Ra5 15.Nc2=) 13.Rab1 (13.Nd2 Nf5+=) 13...Ra7 (13...a5 14.Nd2=) 14.Qc3 Rc7 15.Rbc1 Ng6 (15...Rd7 16.Rd2+=) 16.cb5+/– ab5 17.Nb5 Rb7 (17...cb5 18.Qc7 Pinning (18.Qc7 Deflection)) 18.Nd6 Bd6 19.Rd6 Rd8 (19...Qc7 20.Rd2+/–) 20.Rd8+– Qd8 21.a4 Qb6 (21...Ne7 22.e4+/–) 22.Ba3+– Bd5 (22...Rd7 23.Qc2+–) 23.b5! cb5? (better is 23...Rd7+–) 24.Ne5! Ne5 (24...fe5 25.Bd5 Double attack (25.Bd5 Discovered attack); 24...Ne5 25.Bd5 Double attack (25.Bd5 Discovered attack)) 25.Bd5 Kg6 26.a5 Qa7 27.Bd6 Rd7 28.Be4 Kf7 (28...Kh6 29.Qc8 Qa5 30.Be5 fe5 31.Qb8 Qd8 32.Qe5 g6+–) 29.Qb3 Ke8 (29...Nc4 30.Rc4 g6 31.Rc8 Kg7 32.Bf8 Kh8 33.Bh6 Rd8 34.Rd8) 30.Qg8 1–0. pierre – GoldenGiant1, internet, 2010.

3.c4 e5

4.cd5 Qd5

5.Nc3 Qd4 6.a3 Bg4 7.h3 Be6 8.Nf3 Qd8 9.d4 a5 10.de5 ab4 11.Qd8 Kd8 12.0–0–0 Kc8 13.ab4 Bb4 14.Nd4 Bc4 15.e6 Bc3 16.Bc3 c5 17.Nf5 Be6 18.Ng7 Bb3 19.Rd2 b5 20.e4 b4 21.Bb2 Ra5 22.Nf5 Nd7 23.f4 h5 24.h4 Rh7 25.Rh3 Be6 26.Nd6 Kb8 27.f5 Ba2 28.Rg3 Nh6 29.Be2 Ng4 30.Rd1 Ra7 31.Rd2 Ra5 32.Rc2 Nde5 33.Bf1 Re7 34.Kd1 Nf7 35.Nc4 Bc4 36.Bc4 Nd6 37.Be6 Ne4 38.Rf3 Rea7 39.Re2 Nd6 40.Rd3 R7a6 41.Rc2 c4 42.Rf3 c3 43.Bc1 Ne4 44.Ke1 Ne5 45.Re3 Nc5 46.Bg8 Ncd3 47.Ke2 Rd6 48.Rh3 Nc1 49.Rc1 Rd2 50.Ke3 Ng4 51.Kf4 Rd4 52.Kg3 c2 53.Bb3 Re5 0–1. Delfi 1.40 – Mad006, computer chess game, 2001.

5.Nc3 Qd7 6.b5 Bc5 7.e4 Ne7 8.Nf3 Qd6 9.Qc2 (9.Na4 Ba3=) 9...Be6 (9...Bg4 10.Be2=) 10.Na4+= Nd7 11.Bc4 (11.Rc1!? Bb4 12.Qc7+/–) 11...Bc4= 12.Qc4 c6 (12...a6 13.Nc3=+) 13.Rc1= Bb4 14.Bc3 Bc3 15.Rc3 (15.Nc3 Nb6 16.Qb3 Rc8=) 15...a6 16.bc6 Qc6 White gets strong play along the open c–file (< 16...bc6 17.0–0+=) 17.Nb2 Rc8 18.0–0 h6 (18...Qb6 19.Qc8 Nc8 20.Rc8 Kf7 21.Na4=+) 19.Rfc1 White fights for the Initiative 19...Qc4 (19...Qb6 20.Qe2 Rc3 21.dc3=) 20.Nc4 Rc6 21.d4 b5 22.Ne3 Rc3 23.Rc3 ed4 24.Nd4 g5 25.f3 h5 26.Nd5 Kf8 27.Rc7 Nd5 28.Rd7 Nf4 29.Ra7 h4 30.Ra6+– Kf7 31.Nb5 Rb8 32.a4 Nd3 33.Ra7 Kg6 34.Kf1 Nc5 35.Nc3 Rb3 36.Ne2 Nd3 37.Nd4 Rb1 38.Ke2 Nf4 39.Kd2 Rh1 40.g4 Rh2 41.Kc3 Ne2 42.Kd3 Nd4 43.Kd4 Ra2 44.Ra8 Ra3 45.e5 Rf3 46.e6+– Rf4 47.Kd5 (47...f5 48.e7+–) 1–0. Psion – Psion, 4 Min/Zug, 1990.

5.Nc3 Qd8 6.a3 =.

5.Nc3 Qd8 6.b5 Be6 (6...a6 7.e3=) 7.e3 (7.Nf3 Bb4=) 7...Nh6 (7...a6 8.d4=) 8.d4 (8.Nf3 Nf5=) 8...ed4 9.ed4 (9.Qd4 Qd4 10.ed4 Nd7=) 9...Be7 (9...Bb4 10.Bd3=) 10.Bd3 0–0 11.Nge2 (11.Be4 c6=) 11...Qc8 (11...a6 12.Qb1 ab5 13.Bh7 Kh8 14.Nb5=) 12.0–0 Rd8 (12...Re8 13.d5 Bf5 14.Nd4+=) 13.Qc2 (13.Re1 Bd6+/–) 13...Bf5+= 14.Ne4 a6 (14...c6 15.Bc1 cb5 16.Qc8 Bc8 17.Bh6 gh6 18.Bb5+/–) 15.Bc1+/– Bg6 (15...g5 16.N2g3 Bg6 17.Re1+/–) 16.Bh6 gh6 17.Rfc1 ab5 18.Qc7 Nc6? (better is 18...Qc7 19.Rc7 Nc6 20.Bb5 Be4 21.Bc6 bc6 22.Re7 Bd3+/–) 19.Rc6!+– (19.Rc6 bc6 20.Qe7+–) 1–0. De Visser,Arno – Grund,Karl, corr (year?).

5.Nc3 Qd8 6.b5 Be6 7.Nf3 Bc5 (7...Nd7 8.d4=) 8.Ne4 (8.e3 Bg4=) 8...Bb6 9.e3 Ne7 10.Qc2 0–0 11.Bc4 Bc4 12.Qc4 Qd5 13.Qd5 Nd5 14.0–0 a6 15.a4 ab5 (15...Rd8 16.d3=) 16.ab5 Nd7 17.Rfc1 Ra1 18.Ra1 Re8 19.d3 Kf7 20.Ra3 Nc5 21.Ng3 g6 22.Kf1 h5 23.d4 ed4 24.Bd4 Re7 (24...c6 25.bc6 bc6 26.Ke2=) 25.Ra8 Nb3 26.Bb6 Nb6 27.Ra3 Nc5 28.Nd4 h4 29.Nge2 g5 30.g4 Ne4 31.Nf5 Rd7 32.Ned4 Nc4 33.Ra7 Ncd6 34.Kg2 (34.Nd6 Nd6 35.Ke2 Ke7=) 34...Nf5 35.Nf5 b6 (35...Nc5 36.Kf3=) 36.Kf3+= Nc5 37.h3 Ke6 38.Nd4 Kd5 39.Ra8 Nd3 40.Ke2 (40.Rf8 Ke5=) 40...Ne5 (40...Nf4 41.ef4 Kd4 42.Rf8=) 41.Rf8+= Kc5? (41...Nf7 42.f3+=) 42.Ra8?? (better is 42.Rf6 Kd5 43.Rf5+–) 42...Nf7 43.Ra2 Nd6 Attacks the isolani on b5 44.Rc2 Kd5 45.Kd3 (45.Rc1 Ke5+=) 45...Ne4 (45...Ke5 46.Kc3=) 46.f3+= Nc5 47.Ke2 Re7 48.Nc6 Re8 (48...Rd7 49.e4 Ke6 50.Rd2+=) 49.e4 Ke6 50.Ra2 Kd7 51.Rd2 Ke6 52.Nd4 Ke5 53.Nf5 Ra8 54.Ng7 The mate threat is Rd5 54...Kf4 55.Nh5 Ke5 56.Rd5 Ke6 57.Rf5 Ra2 58.Ke3 Ra3 59.Kd4 Nd7 60.f4 Ra4 61.Ke3 Ra3 62.Kd4 (62.Kd2 Rh3 63.fg5 fg5 64.Rg5 Ra3+=) 62...Ra4= (worse is 62...Rh3 63.fg5 fg5 64.Rg5+=) 63.Ke3 Ra3 64.Kd4 ½–½. Psion – Psion, 4 Min/Zug, 1990.

5.Nc3 Qf7 6.a3 Be6 =.

5.Nc3 Qf7 6.b5 a6 7.ba6 Na6 8.Nf3 =.

5.Nc3 Qf7 6.b5 Bb4 7.Qa4 c5 8.b6 Bd7?? (better is 8...Nd7=) 9.Qa7!+– Ne7 (9...Ra7 10.ba7 Double attack (10.ba7 Passed pawn)) 10.Qa8 0–0 11.Qb7 Bc6 12.Qa7 Nd7 13.e4 Ra8 14.Qc7 Ba5 15.Nd5! Nd5 (15...Bd5 16.Qd7 Deflection; 15...Nd5 16.Qc6 Double attack (16.Qc6 Deflection; 16.Qc6 Decoy)) 16.Qc6 (16.ed5 Qd5 17.Nf3 Bb6=) 16...N5b6 17.Be2 Rc8 18.Qb5 Bb4 19.Nf3 1–0. Kucharkowski,Jens – Otte,Marco, corr or01–009 E–mail, 2001.

5.Nc3 Qf7 6.b5 Be6 7.e3 Nd7 8.Nf3 Bd6 9.d4 Ne7 10.Bd3 0–0–0 11.0–0 White gets the initiative 11...h5 (11...Qh5!?=) 12.Ne4+/– Kb8 13.Nd6 cd6 14.Ba3 Nb6 15.Qb1 Bd5 (15...Bg4 16.Nd2+=) 16.e4+/– Bc4 17.Rc1 Rd7 18.Bc4 (18.Bb4 ed4 19.Nd4 d5+/–) 18...Nc4 19.Qd3 Nb6 (19...Rc8 20.Bb4+/–) 20.Rc2 Rc8 21.Rac1 Qg6 22.Rc8 Nec8 23.Qc2 (23.d5 Rc7+/–) 23...d5 24.de5 Qe4 25.ef6 (25.Qc3 d4 26.Qc5 d3+=) 25...gf6 (25...Qc2 26.Rc2 gf6 27.Bb2+=) 26.Bb2 (26.Qc3 Nc4+=) 26...Rf7 (26...Qc2!? 27.Rc2 Rd6=) 27.Qc5+/– Qf4 28.Rc2 Rg7 29.Ne1 (29.Qc3 Qg4 30.Ne1 Rg6+=) 29...Rg6 (29...Re7 30.Rc1+=) 30.Nd3 Qd6 31.Qe3 Nc4 32.Qe8 Rg5 33.a4 Rf5 (33...b6 34.Qh8+/–) 34.Bd4 h4 (34...b6!?+/–) 35.Ba7!+– Ka7 Deflection from c8 36.Qc8 Theme: Double Attack 36...Rg5 37.Re2 (37.a5 Qa3 38.a6 ba6 39.Qc7 Ka8+–) 37...Ne5 (37...Qa3 38.b6 Nb6 39.Qc2+=) 38.f4+– Rg2 39.Rg2 Nd3 40.Rg7 (40.Rg8 Qf4 41.Qa8 Kb6 42.a5 Kb5 43.Qb7 Ka4 44.Qc6 (44.Qd5?? Qf2 45.Kh1 Qf1 46.Rg1 Nf2) 44...Kb4 45.Qb6 (45.Qd5?? Qf2 46.Kh1 Qf1 47.Rg1 Nf2) 45...Ka4 46.h3 Qc1 47.Kh2 Qf4 48.Kg2 Qd2 49.Kg1 Qc1 50.Kh2 Qf4 51.Kh1 Qf1 52.Kh2 Qf4=) 40...Qb6 41.Kh1 Nf4?? (41...Nf2 42.Kg2 h3 43.Kf3 Ne4+–) 42.Rg8 (42.Qd7 Nd3 43.a5+–) 42...Qe3 Threatening mate... how? 43.Qb8 Kb6 44.Qd6 Ka7 45.b6! Qb6 46.Ra8!! Ka8 Theme: Deflection from b6 47.Qb6 (47.Qb6 Ne2 48.Qe6+–) 1–0. Psion – Psion, 4 Min/Zug, 1990.

3.d4 e5

4.a3 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.d4).

4.a3 Bd6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.d4 Bd6).

4.a3 Bd6 5.e3 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Bd6 5.d4).

4.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.d4).

4.de5 Bb4

5.c3 Bc5 6.Nf3 c6 (6...Bg4 7.c4 dc4 8.Qa4 c6 9.ef6 Nf6 10.Qc4=+) 7.e3= Qe7 8.ef6 (8.c4 Be6=) 8...Nf6=+ (< 8...gf6 9.c4 dc4 10.Bc4 Be3 11.0–0+= (11.fe3?! Qb4 12.Nbd2 Qb2+=)) 9.Be2 0–0 10.0–0 Be3?? (better is 10...Bg4=+) 11.Bd3?? (better is 11.fe3 Qe3 12.Kh1+/–) 11...Bc5–/+ (12.Re1 Ne4–/+) 0–1. Jendrossek,Peter – de Visser,Arno, corr SOK–87–07, 1989.

5.Bc3 Bc3!? 6.Nc3 d4 7.ef6 Nf6–/+.

5.Bc3 Bc3!? 6.Nc3 fe5?! 7.Qd5 Qe7 8.Nf3=.

5.Bc3 Be7 6.e3= Be6 7.Bb5 c6 8.Bd3 Qc7 (8...Nd7 9.Nf3 fe5 10.Ne5=+) 9.Qh5 Kf8 (9...Bf7 10.Qf5=) 10.Ne2 (< 10.Bh7 Nd7=+) 10...Nd7 11.Nf4 (11.Nd4 Bf7 12.Bg6 A) 12...Bg6 13.Ne6 Kf7 14.Nc7 Bh5 15.e6 (15.Na8 fe5 16.Ba5 Ngf6–+) 15...Kg6 16.Na8+= (< 16.ed7 Rd8–/+); B) 12...Ne5?? 13.Bf7 g6 14.Bg6+–; C) 12...fe5 13.Bf7 ed4=) 11...Bf7= 12.Bg6 hg6 (12...fe5!? 13.Bf7 ef4=) 13.Qh8+= Ne5 14.Nd2 Bd6 15.h4 Ng4 16.g3 (16.Ne2 Re8+/–) 16...Re8 17.0–0 c5 18.h5 Bf4 19.ef4 gh5 20.Rae1 (20.Nf3!?=+) 20...Re1–/+ 21.Re1 d4 22.Bb2 Qa5 (22...Ba2 23.Qh5 Qc8 24.Ne4+/–) 23.Bc1 Qa2 24.Nf3? (24.Qh7 g6 25.Ne4 Qc2–+) 24...Qd5 (better is 24...Qc2 25.Rf1 Bc4 26.Nd4 Qd3 (26...cd4 27.Ba3 Kf7 28.Qh5 Qg6 29.Qc5–/+) 27.Ne6 Be6 28.Qh5 Qd5 29.Qd5 Bd5–+) 25.Nh4–/+ N4h6 26.Qh7 Ne7 27.Qd3 Nhf5 28.Qe2 (28.Nf5 Qf5 29.Qb5 b6–+ (29...Qc2? 30.Qb7 Qc3 31.Qe7 Kg8 32.f5+–)) 28...Kg8 (28...Qc4 29.Qf3 Nh4 30.gh4–+) 29.Nf3 Qc6 30.Nd2 Nd5 (30...a5 31.Nb3 b6 32.Na1–+) 31.Ne4 b6 32.Qa6 Qd7 (32...Nb4!? 33.Qe2–+) 33.Bd2 Nfe7 34.Rd1 Qg4 35.Ra1 (35.Re1 Nc8–+) 35...h4 36.Qa7 (36.Nd6–+) 36...Qf3 37.Qa8 Kh7 38.Nf6 gf6 39.Qf8 Kg6 40.gh4 Qg4 41.Kf1 (41.Kh2 Qh4 42.Kg2 Nf4 43.Bf4 Bd5 44.f3 Qf4 45.Rg1 Qf3 46.Kh2 Kf5 47.Qg7 Qf2 48.Kh3–+) 41...Ne3! 42.fe3 (42.Be3 Bc4) 42...Bc4 43.Kf2 de3 44.Be3 Qe2 (45.Kg1 Qe3 46.Kg2 Qe2 47.Kg1 Qg4 48.Kf2 Qf4 49.Ke1 Qe3 50.Kd1 Be2 51.Ke1 Bg4 52.Kf1 Bh3#) 0–1. Diener,Rudolf – Grund,Karl, corr SOK–87–14, 1989.

5.Nd2 Nd7 6.Ngf3 fe5 7.Ne5 Ngf6 =+.

5.Nd2 fe5 6.Be5 Nf6 7.Ngf3 Nc6 8.Bg3?? 0–0 (better is 8...Ne4 9.Rb1 Bc3–+) 9.e3 Ne4 10.Bd3 Bg4 11.c3 (11.Be4 de4 12.c3 ef3 13.Qb3 Kh8 14.gf3 Rf3 15.cb4 Rf5–/+) 11...Bc3 12.Be4 Bd2 (12...Ba1 13.Qb3 Be6 14.Bh7 Kh7 15.Qb7 Qd7 16.Qb1 Kg8 17.Qa1 Rf6–/+) 13.Qd2–/+ de4 14.Ne5? (14.Nd4 Qd5 15.h3–/+) 14...Qd2 15.Kd2 Ne5 16.Be5 Rf2 (16...Rf2 17.Kc1 b6–+) 0–1. towa (1900) – yulio (1900), gameknot.com, 2014.

3.d4 e6

4.a3 a5 5.ba5 Bd6 6.e3 =.

4.a3 b5 5.e3 a6 6.Nf3 Bd6 7.Bd3 Nh6 8.Nbd2 e5 (8...0–0!?+=) 9.de5+/– fe5 10.Ne5 Be5 11.Be5 Rg8?? (11...0–0!?+/–) 12.Nf3 (12.Bh7 Nc6 13.Bg8 Ne5 14.Qh5 Kf8 15.Qe5 Kg8+–) 12...Bg4? (12...Bf5+–) 13.Bh7 Rh8 14.Bg6 Nf7 15.h3 (15.Bf7 Kf7 16.Bc7 Qc7 17.Qd5 Kf6 18.Qa8 Qc3 19.Ke2 Qc2 20.Kf1 Rd8+–) 15...Rh6 (15...Bh5 16.Bf7 Bf7 17.Bg7+–) 16.Qd3 (better is 16.Bf7 Kf7 17.Bc7 Qc7 18.Qd5 Be6 19.Ng5 Ke7 20.Ne6 Qc3 21.Ke2 Qc2 22.Kf3 Qc6+–) 16...Be6 (16...Kf8 17.Bf7 Bf3 18.gf3 Kf7+–) 17.Bg7 Rh5 (17...Rg6 18.Qg6 Kd7+–) 18.Bh5 Nd7 (18...Nc6+–) 19.Ng5! Nde5 (19...Qg5 20.Qg6 Double attack (20.Qg6 Decoy)) 20.Be5 (better is 20.Bf7 Bf7 21.Qf5+–) 20...Ke7 (20...Qg5 21.Bf7 Bf7+–) 21.Nf7 (better is 21.Bf6 Kd6 22.Nf7 Bf7 23.Bd8 Bh5 24.Bc7 Kc7 25.Qd5 Rc8 26.Qh5 Rd8+–) 21...Qd7 22.Qg6 (better is 22.Qh7 Rh8 23.Qg7 Bf7 24.Bf7 Rh7 25.Qh7 d4 26.Bd5 Ke8 27.Qg8 Ke7 28.Qf7 Kd8 29.Bf6 Qe7 30.Qe7 Kc8 31.Qe8) 22...Bf7 23.Qf7 Kd8 24.Qf8 Qe8 25.Qe8 1–0. Fournier,Frederic (1740) – jozeluiz (1635), Active, 2005.

4.a3 g6 5.Nf3 (5.Nd2 Nc6+=) 5...Bg7 (5...Nd7 6.Nc3+=) 6.e3+= Ne7 7.c4 (7.Be2 0–0+=) 7...dc4 (7...0–0 8.Bd3+=) 8.Bc4 0–0 (8...Qd7 9.Nc3+/–) 9.0–0 Nd7 (better is 9...Nd5!?+=) 10.Be6+– Kh8 11.Nbd2 Nb6 12.Bb3 Bg4 (12...a5 13.Qc2+–) 13.h3 (13.Qc2 a5+–) 13...Bf3 (13...Bd7 14.Qc2+–) 14.Qf3 (14.gf3?! Qd7 15.Kg2 a5+/–) 14...c6 (14...Nbd5 15.e4 Nb6 16.Rfe1+–) 15.Ne4 Nbd5 (15...Rb8 16.Nc5 Qd6 17.e4+–) 16.Nc5 Qc8 17.e4 Nc7 18.Rac1 (18.d5 cd5 19.ed5 b6+–) 18...h6? (18...b6 19.Nd3+–) 19.Qg3 (19.d5 b6 20.Na4 Ne8+–) 19...g5? (19...f5+–) 20.d5! cd5 (20...Ng6+–) 21.Nb7! Qb7 22.Rc7 (22.Rc7 Qb8 23.Re7 Qg3 24.fg3 de4 25.Re1+–) 1–0. Wall,Bill – AymReady, internet, 2003.

4.g3 Bb4–/+ 5.Nc3 (5.Nd2 Ne7–/+) 5...e5 6.de5? (6.a3 Ba5 7.e4 Qd6–+) 6...fe5?? (6...d4 7.a3 dc3 8.Qd8 Kd8 9.0–0–0 Nd7 10.ab4 cb2 11.Kb2 fe5 12.Nf3–+) 7.Nf3? (better is 7.a3 Ba5 8.e4–/+) 7...d4–+ 8.Qd2 (8.a3 Ba5–+) 8...dc3 (8...Nc6 9.0–0–0–+) 9.Bc3 Qd2 10.Kd2 Bc3 11.Kc3 e4 (11...Nc6 12.Bg2–+) 12.Nd4 (12.Nd2 Nf6–+) 12...b6 (12...Nf6 13.Bg2–+) 13.Bg2 Bb7 (13...Nf6 14.Rad1–+) 14.Nb5 (14.Ne6 Na6 15.Ng7 Kf7 16.Nf5–+) 14...Kd7?? (better is 14...Na6–+) 15.Rad1 (better is 15.Rhd1 Ke7 16.Nc7–/+) 15...Kc8?? (better is 15...Ke7 16.Nc7 Nf6 17.Na8 Rc8 18.Kb2 Ba8–/+) 16.Rd2?? (better is 16.Bh3 Nd7 17.Rd7+– (17.Bd7?! Kb8+=)) 16...Bc6 17.Rhd1 (17.Kc4 Ne7–+) 17...Nf6 (better is 17...Bb5 18.Rd8 Kb7 19.Be4 c6 20.Bf5 Be2 21.R1d2–+) 18.Nd4 Ng4 (better is 18...Bd7!? 19.Nb3–+) 19.Nc6 Nc6 20.e3?? (better is 20.Bh3 h5 21.f3+=) 20...Nh2?? (better is 20...Re8–+) 21.Be4= (21.Be4 Kb7 22.f3 Nf3 23.Bf3+=). Mangoldt,H – Grottke,Claudia, Berlin–ch U15, 1997.

4.a3 Nd7

5.Nc3 Nb6 A) 6.Nf3 Nc4 (6...a5 7.b5 Ne7 8.e4 de4 9.Ne4 Na4 10.Bc1 f5) 7.Bc1 a5 8.b5 Nd6 9.e3 Ne7 10.Bd3 g6; B) 6.e3 Nh6 (6...a5 7.ba5 Ra5 8.Nh3 Nh6 9.Bd3 Nc4 10.Bc4 dc4) 7.Bd3 a5 8.b5 Nf5 9.Nf3 Be7 10.0–0 0–0; C) 6.e4 a5 (6...Nh6 7.Nf3 a5 8.b5 Bd6 9.Be2 Nf7 10.0–0 0–0) 7.ba5 Ra5 8.Nf3 Ne7 9.Bd3 de4 10.Ne4 Na4.

5.Nc3 c6 A) 6.e3 Bd6 (6...a5 7.b5 Bd6 8.Nf3 Ne7 9.Bd3 0–0 10.0–0 c5) 7.Nh3 e5 8.Qg4 Kf8 9.Be2 h5 10.Qg6 Ne7; B) 6.Nh3 a5 (6...Bd6 7.e3 e5 8.Be2 Ne7 9.0–0 0–0 10.Qd2 Qc7) 7.b5 Bd6 8.e4 Nh6 9.Qh5 Nf7 10.Bd3 Qb6; C) 6.e4 a5 (6...Bd6 7.Bd3 a5 8.b5 Ne7 9.Nf3 0–0 10.0–0 Ng6) 7.b5 Bd6 8.Bd3 Ne7 9.Nf3 0–0 10.0–0 Ng6.

5.Nc3 Nh6 A) 6.e4 Nb6 (6...c6 7.Bd3 a5 8.b5 f5 9.ed5 cd5 10.Nf3 Bd6) 7.Nf3 a5 8.ba5 Ra5 9.Be2 Bd6 10.0–0 0–0; B) 6.e3 a5 (6...Nb6 7.Bd3 a5 8.b5 Nf5 9.Nf3 Be7 10.0–0 0–0) 7.b5 Nf5 8.Bd3 Nb6 9.Nf3 Be7 10.0–0 0–0; C) 6.Nf3 a5 (6...Nb6 7.e4 a5 8.ba5 Ra5 9.Qd2 c6 10.Bd3 de4) 7.b5 Bd6 8.e4 Nb6 9.Be2 0–0 10.0–0 Nf7.

5.Nc3 a5 A) 6.ba5 Ra5 (6...Nh6 7.e3 Ra5 8.Nh3 Nb6 9.Bd3 Nc4 10.Bc4 dc4) 7.e3 Ne7 8.Nf3 Nf5 9.e4 de4 10.Ne4 Be7; B) 6.Nf3 ab4 (6...Kf7 7.b5 Nh6 8.e4 Nb6 9.Be2 de4 10.Ne4 Qd5) 7.ab4 Ra1 8.Qa1 Bb4 9.e3 Nb6 10.Ba3 Ba3; C) 6.b5 Bd6 (6...f5 7.Nf3 Bd6 8.e3 Ngf6 9.Be2 0–0 10.0–0 b6) 7.e4 Ne7 8.Bd3 0–0 9.Nf3 c5 10.bc6 bc6.

5.c4 Nb6 A) 6.Nd2 Bd7 (6...dc4 7.e4 f5 8.ef5 Nf6 9.Nc4 ef5 10.Nf3 Be7) 7.Ngf3 Ne7 8.e3 Na4 9.Bc1 dc4 10.Bc4 Nd5; B) 6.c5 Nc4 7.Bc3 e5 8.Nf3 e4 9.Nfd2 b5 10.cb6 Nb6; C) 6.cd5 ed5 (6...Nc4 7.Bc3 ed5 8.Nd2 Nd2 9.Qd2 Bd6 10.Nf3 Nh6) 7.Nf3 Bd6 8.Nc3 Ne7 9.Qb3 0–0 10.e4 Be6.

5.c4 dc4 A) 6.e4 f5 (6...a5 7.b5 f5 8.ef5 ef5 9.Nd2 Ngf6 10.Bc4 Nb6) 7.ef5 ef5 8.Bc4 Nb6 9.Bb3 Nf6 10.Nf3 Nbd5; B) 6.e3 a5 (6...Nb6 7.Nd2 Ne7 8.Nc4 Bd7 9.Bd3 Na4 10.Qc2 b5) 7.Bc4 Nb6 8.Bd3 Nh6 9.ba5 Ra5 10.Nc3 Bd6; C) 6.Nd2 b5 (6...a5 7.ba5 b5 8.ab6 Nb6 9.Qc2 Ra4 10.e3 Ba6) 7.e3 f5 8.Ne2 Ngf6 9.Nc3 c6 10.Qf3 Nd5.

5.c4 Kf7 A) 6.c5 a5 (6...Ne7 7.Nf3 b6 8.Nc3 Rb8 9.Rb1 a5 10.e3 ab4) 7.Nc3 Ne7 8.Nf3 b6 9.g3 ab4 10.ab4 Rb8; B) 6.cd5 ed5 (6...Nb6 7.de6 Be6 8.e4 a5 9.Nh3 ab4 10.Nf4 Qe8) 7.Nf3 Nb6 8.e3 Bd6 9.Nc3 Ne7 10.Qb3 a5; C) 6.Nd2 a5 (6...Ne7 7.Ngf3 dc4 8.Nc4 Nb6 9.e4 Bd7 10.Bd3 Ng6) 7.b5 Ne7 8.Ngf3 c6 9.e4 Nb6 10.c5 de4.

5.c4 Nh6 A) 6.cd5 ed5 (6...Nb6 7.de6 Be6 8.e4 Bd6 9.d5 Bd7 10.Nf3 0–0) 7.Nf3 Nb6 8.Nc3 a5 9.Qb3 Nc4 10.e3 Nb2; B) 6.e3 Nb6 (6...a5 7.b5 Be7 8.cd5 0–0 9.de6 Nb6 10.Nh3 Be6) 7.Nd2 Bd7 8.Ngf3 Be7 9.cd5 ed5 10.Bd3 Bf5; C) 6.Nd2 Be7 (6...Kf7 7.Ngf3 c6 8.e3 a5 9.b5 Be7 10.Qc2 g6) 7.e3 0–0 8.Nh3 dc4 9.Nc4 Nb6 10.Bd3 Nf5.

5.Nd2 a5 A) 6.b5 Nh6 (6...Bd6 7.c4 Nh6 8.c5 Be7 9.Nh3 e5 10.c6 bc6) 7.e4 f5 8.ed5 ed5 9.Bd3 Bd6 10.Ngf3 Qe7; B) 6.c3 Bd6 (6...Nh6 7.e4 Nb6 8.Ngf3 Bd7 9.b5 c6 10.a4 Kf7) 7.c4 Nh6 8.c5 Be7 9.Ngf3 0–0 10.e3 Nf5; C) 6.ba5 Ra5 (6...Bd6 7.c4 Nh6 8.Qb3 c6 9.Ngf3 Qa5 10.c5 Bc7) 7.e3 Ne7 8.Bd3 c5 9.Bc3 Ra8 10.Nh3 c4.

5.Nd2 Nb6 A) 6.e4 Kf7 (6...a5 7.c3 Bd7 8.b5 Kf7 9.c4 dc4 10.Nc4 Ne7) 7.Nh3 Na4 8.Bc1 Nh6 9.c4 Nc3 10.Qc2 Ne4; B) 6.c4 Bd7 (6...Nc4 7.Nc4 dc4 8.e4 a5 9.b5 c3 10.Bc3 f5) 7.Ngf3 Kf7 8.e3 Ne7 9.Bd3 Ng6 10.cd5 Nd5; C) 6.e3 Nh6 (6...Kf7 7.c4 dc4 8.Nc4 Ne7 9.Nh3 Bd7 10.Bd3 Na4) 7.c4 Bd7 8.Ngf3 Kf7 9.Bd3 Na4 10.Qb3 Nb2.

5.Nd2 Bd6 A) 6.c4 c6 (6...Nh6 7.c5 Be7 8.Nh3 Nf8 9.e3 Ng6 10.Bd3 0–0) 7.e3 Ne7 8.c5 Bc7 9.Ngf3 0–0 10.Be2 Nf5; B) 6.e4 a5 (6...Ne7 7.Ngf3 Ng6 8.Bd3 0–0 9.0–0 Nf4 10.g3 Nd3) 7.ed5 ed5 8.Qh5 Kf8 9.Qd5 Nb6 10.Qb3 Qe7; C) 6.Ngf3 Nh6 (6...Ne7 7.e4 Ng6 8.Bd3 0–0 9.0–0 Nf4 10.g3 Nd3 ) 7.c4 0–0 8.e3 a5 9.Be2 ab4 10.c5 Be7.

5.Nd2 Nh6 A) 6.e4 Nb6 (6...f5 7.ed5 ed5 8.Bd3 a5 9.Ne2 ab4 10.0–0 ba3) 7.Ngf3 Be7 8.c4 0–0 9.Bd3 a5 10.b5 dc4; B) 6.e3 Nb6 (6...a5 7.ba5 Kf7 8.Bd3 c5 9.dc5 Nc5 10.Ngf3 e5) 7.Nh3 Bd7 8.Bd3 Na4 9.Ra2 a5 10.ba5 Ra5; C) 6.c4 Be7 (6...Kf7 7.Ngf3 c6 8.c5 a5 9.e3 Nf5 10.b5 Be7) 7.Nh3 0–0 8.e3 dc4 9.Nc4 Nb6 10.Bd3 Nf5.

5.e3 a5 A) 6.Nh3 Bd6 (6...ab4 7.Nf4 Qe7 8.ab4 Ra1 9.Ba1 Nh6 10.Nd2 Nb6) 7.Qg4 Kf7 8.Nf4 Bf4 9.Qf4 Ne7 10.Bd3 Nf5; B) 6.Ne2 Bd6 (6...Qe7 7.Nd2 Qf7 8.Nf4 Nh6 9.c4 Bd6 10.Qf3 Nb6) 7.Nf4 Bf4 8.ef4 Ne7 9.Bd3 ab4 10.0–0 c5; C) 6.b5= Nh6 (6...Bd6 7.c4 dc4 8.Nd2 c3 9.Bc3 Ne7 10.Qg4 Kf7) 7.Nc3 Bd6 8.Qh5 Nf7 9.Nf3 0–0 10.Be2 f5.

5.e3 Nb6 A) 6.Nc3 Bd6 (6...a5 7.ba5 Ra5 8.Nf3 Nh6 9.Bd3 Be7 10.0–0 0–0) 7.Nf3 Ne7 8.Bd3 0–0 9.0–0 Bd7 10.Qe2 a5; B) 6.Bd3 Nh6 (6...Ne7 7.Nc3 Nf5 8.Nf3 a5 9.ba5 Ra5 10.0–0 Be7) 7.Nc3 a5 8.b5 Nf5 9.Nf3 Be7 10.0–0 0–0; C) 6.Nf3 Bd6 (6...Nh6 7.Nc3 Bd6 8.Bd3 0–0 9.0–0 Bd7 10.Qd2 a5) 7.Nc3 Ne7 8.Bd3 0–0 9.0–0 Bd7 10.Qe2 a5.

5.e3 Bd6 A) 6.Nf3 Nb6 (6...Nh6 7.c4 dc4 8.Bc4 Nb6 9.Bd3 a5 10.Nc3 ab4) 7.Nc3 Ne7 8.Bd3 Bd7 9.e4 de4 10.Ne4 Na4; B) 6.Nc3 Ne7 (6...c6 7.Bd3 Ne7 8.Qg4 Kf7 9.Nf3 h5 10.Qh3 Nb6) 7.Nf3 0–0 8.Bd3 a5 9.Nb5 Nb6 10.0–0 ab4; C) 6.c4 c6 (6...dc4 7.Bc4 Nb6 8.Bd3 Ne7 9.Nf3 a5 10.b5 0–0) 7.Nf3 Ne7 8.Nc3 0–0 9.Qc2 Qe8 10.Be2 b6.

5.e3 Be7 6.Bd3+= (6.Nh3 Nb6 (6...Nh6 7.Nf4 Nb6 8.Qh5 Nf7 9.Nd2 g6 10.Qh3 0–0) 7.Nc3 Nh6 8.Qh5 Nf7 9.Bd3 g6 10.Qg4 e5; 6.Nc3 a5 (6...Bd6 7.Nh3 Ne7 8.Nf4 Nb6 9.Bd3 0–0 10.Qh5 Nf5) 7.ba5 Bd6 8.Nb5 Nh6 9.Qh5 Nf7 10.Nf3 0–0) 6...Nh6 (6...a5 7.Nh3 f5 8.ba5 Nh6 9.0–0 0–0 10.Nf4 Nf6) 7.c4 (7.Qh5 Nf7 8.Nc3 f5 9.Nf3 0–0 10.0–0 Nf6) 7...c6 (7...dc4 8.Bc4 Nb6 9.Bd3= a5 10.b5 0–0) 8.c5 (8.cd5 ed5 9.Nf3 f5+= (9...0–0 10.Nc3 Nb6) 10.Nc3 0–0) 8...b5 (8...e5 9.Nh3= (9.Nc3 0–0 10.Nh3 f5) 9...0–0 10.Nc3 f5; 8...0–0 9.Nh3 e5 10.Nc3 f5) 9.Nd2 (9.Qc2 f5+= (9...e5 10.Bh7 Nf8) 10.a4 ba4; 9.Nc3 0–0 10.a4 ba4) 9...Nf7 (9...a5 10.Ngf3+= (10.Nh3 e5) 10...Nf5; 9...0–0 10.Ngf3 Bb7) 10.Ngf3 (10.a4 ba4 11.Qa4 Qc7+=) 10...0–0 (10...a5 11.0–0+=; 10...e5+=) 11.0–0 (11.Qc2 f5+/–) 11...e5 (11...a5 12.Qb1 g6 13.a4 ba4 14.Ra4+/–) 12.e4+/– Qc7 (12...de4 13.Be4 (13.Ne4?! f5=) 13...Qc7 14.a4+/–) 13.ed5 cd5 14.Bb5 e4 15.Re1 (better is 15.Ne1+/–) 15...Nc5? (better is 15...Nb8 16.Qe2 a6+/–) 16.dc5+– (16.bc5?! Rb8 17.Qe2 a6+/–) 16...ef3 17.Nf3 Bb7 (17...Rd8+–) 18.Nd4 Nd8 (18...Bc8 19.Nc6 Bd8 20.Qd5+–) 19.Qe2 (19.Nf5 Rf7+–) 19...Rf7 (19...a6 20.c6 ab5 21.cb7 (21.Qe7?! Qe7 22.Re7 Bc6+–) 21...Nb7 22.Rac1+– (worse is 22.Qe7 Qe7 23.Re7 Nd6+–)) 20.Be8 Bc5 (20...Bf8 21.Bf7 Nf7+–) 21.Bf7 Nf7 22.bc5 Ne5 23.Rac1 Nc4 (23...Qd7 24.f4 Nc4 25.Qe7+–) 24.Bc3 (24.Nf5 Rb8 25.Qg4 Nb2+–) 24...Qf7 (24...Qc5 25.Qe6 Kh8 26.Qf7+–) 25.Nf5 Kf8 (25...Bc8 26.Ne7 Kh8 27.Rcd1+–) 26.Bb4 (better is 26.c6!? Bc6 27.Bb4 Kg8 28.Ne7 Kh8 29.Nc6 Qd7+–) 26...Bc6 (26...a5 27.Bd2+–) 27.Qe7 Kg8 28.Qf7 Kf7 29.Nd6 (29.Re7!? Kf8 30.Rg7 a5+–) 29...Nd6 (29...Kf8 30.Nc4 dc4 31.Rc4+–) 30.cd6 (30.cd6 a5 31.Rc6 ab4 32.Rc7 Kg6 33.d7+–) 1–0. Kent,Paul – Tanner,Frank, ch–EU, Liverpool ENG, 2006.

5.e3 Nh6 A) 6.Nh3 Nb6 (6...Bd6 7.c4 dc4 8.Qh5 Nf7 9.Nd2 0–0 10.Bc4 Nb6) 7.Nc3 a5 8.ba5 Ra5 9.Bd3 Nc4 10.Bc4 dc4; B) 6.Nd2 a5 (6...Nf5 7.g4 Nd6 8.c4 dc4 9.Nc4 Nb6 10.Nb6 ab6) 7.ba5 Nf5 8.Ngf3 Ra5 9.Bd3 Be7 10.e4 de4; C) 6.Nc3 a5 (6...Nb6 7.Bd3 a5 8.b5 Nf5 9.Nf3 Be7 10.0–0 0–0) 7.b5 Bd6 8.Qh5 Nf7 9.Nf3 0–0 10.Be2 f5.

5.Nf3 a5 A) 6.Nc3 ab4 (6...Nb6 7.b5 Ne7 8.e3 Nf5 9.Bd3 Be7 10.Nh4 0–0) 7.ab4 Ra1 8.Qa1 Bb4 9.e3 Nb6 10.Ba3 Ba3; B) 6.ba5 Ra5 (6...Ne7 7.Nc3 c5 8.e3 Qa5 9.Bb5 Kf7 10.0–0 Nc6) 7.Nc3 Nh6 8.e3 c6 9.Bd3 Bd6 10.Ne2 e5; C) 6.Nbd2 ab4 (6...Kf7 7.b5 Nh6 8.c4 c6 9.Rc1 Bd6 10.e3 Nf5) 7.ab4 Ra1 8.Qa1 Bb4 9.Qa4 Bd6 10.c4 Nh6.

5.Nf3 Bd6 A) 6.e3 Ne7 (6...Nb6 7.Nc3 Ne7 8.Bd3 0–0 9.0–0 Bd7 10.Qe2 a5) 7.Nc3 0–0 8.Bd3 a5 9.Nb5 Nb6 10.0–0 ab4; B) 6.Nc3 Ne7 (6...c6 7.e4 Ne7 8.Bd3 0–0 9.0–0 Ng6 10.g3 a5) 7.e3 0–0 8.Bd3 Nb6 9.0–0 Bd7 10.Qe2 a5; C) 6.c4 dc4 (6...Kf7 7.c5 Be7 8.Nc3 Nh6 9.e3 a5 10.Bd3 ab4) 7.e3 Ne7 8.Bc4 Nb6 9.Bd3 a5 10.b5 0–0.

5.Nf3 Kf7 A) 6.Nbd2 Nb6 (6...a5 7.c4 ab4 8.cd5 ed5 9.Qb3 Nb6 10.ab4 Ra1) 7.e3 Na4 8.Qb1 a5 9.c3 Nh6 10.Bd3 Bd7; B) 6.Nc3 a5 (6...Nb6 7.e4 a5 8.ba5 Ra5 9.Bd3 Ne7 10.0–0 Ng6) 7.ba5 Nh6 8.e4 Ra5 9.Bd3 Nb6 10.0–0 Bd7; C) 6.e3 a5 (6...Nh6 7.Nc3 Nb6 8.Bd3 a5 9.b5 Nf5 10.0–0 Bd7) 7.b5 Bd6 8.c4 dc4 9.Bc4 Nb6 10.Bd3 Ne7.

5.Nf3 Nh6 A) 6.Nbd2 a5 (6...Bd6 7.c4 0–0 8.e3 a5 9.Be2 b6 10.c5 bc5) 7.c4 ab4 8.cd5 ba3 9.Qb3 Nb6 10.Ba3 Qd5; B) 6.e3 a5 (6...Nb6 7.Nc3 a5 8.ba5 Ra5 9.e4 Bd6 10.Qd2 0–0) 7.ba5 Ra5 8.Bd3 c5 9.Nc3 c4 10.Be2 Qb6; C) 6.Nc3 a5 (6...Bd6 7.e4 0–0 8.Be2 Nb6 9.0–0 Bd7 10.Qd2 Nf7) 7.b5 Bd6 8.e4 Nb6 9.Be2 0–0 10.0–0 Nf7.

5.Nh3 a5 A) 6.e3 Bd6 (6...Kf7 7.Nf4 Nh6 8.Nd2 Nb6 9.Bd3 Na4 10.Bc1 Nc3) 7.Nf4 Bf4 8.ef4 Ne7 9.Bd3 0–0 10.0–0 Nb6; B) 6.ba5 Bd6 (6...Ne7 7.e4 Ng6 8.Nc3 Ra5 9.ed5 ed5 10.Bd3 Bd6) 7.c4 c6 8.c5 Bc7 9.Nc3 Ne7 10.e3 0–0; C) 6.Nf4 Bd6 (6...Nb6 7.e4 Nh6 8.ba5 Ra5 9.Qd2 Ra8 10.Nc3 c6) 7.Ne6 Qe7 8.Nc5 ab4 9.ab4 Ra1 10.Ba1 Nh6.

5.Nh3 Bd6 A) 6.c4 dc4 (6...c6 7.c5 Bc7 8.Nc3 Ne7 9.g3 e5 10.Bg2 ed4) 7.Nd2 b5 8.e3 f5 9.Nf4 Bf4 10.ef4 Ngf6; B) 6.Nc3 Ne7 (6...Nh6 7.e4 0–0 8.Bd3 a5 9.0–0 ab4 10.ab4 Ra1) 7.e3 0–0 8.Be2 Nb6 9.Nf4 a5 10.0–0 ab4; C) 6.e3 Nb6 (6...Ne7 7.Bd3 0–0 8.Nc3 e5 9.0–0 c6 10.g3 Qc7) 7.Nd2 Ne7 8.c4 dc4 9.Nc4 0–0 10.Nd6 Qd6.

5.Nh3 Nb6 A) 6.e4 de4 (6...Nh6 7.Nd2 a5 8.c3 Bd7 9.b5 f5 10.e5 Be7) 7.Nc3 f5 8.Be2 Bd6 9.Nb5 Nf6 10.c4 Be7; B) 6.Nd2 Na4 (6...Kf7 7.c4 Bd7 8.e3 Na4 9.Bc1 Ne7 10.b5 a6) 7.Ra2 a5 8.e3 ab4 9.ab4 Bb4 10.Ra4 Ra4; C) 6.e3 Bd6 (6...Nh6 7.Nc3 a5 8.ba5 Ra5 9.Bd3 Nc4 10.Bc4 dc4) 7.Nc3 Ne7 8.Bd3 0–0 9.0–0 e5 10.de5 fe5.

5.Nh3 Nh6 A) 6.e4 Nb6 (6...de4 7.Nc3 f5 8.Nf4 Nb6 9.d5 ed5 10.Ncd5 Ng4) 7.Nc3 a5 8.ba5 Ra5 9.Qd2 c5 10.dc5 Bc5; B) 6.Nc3 a5 (6...Nb6 7.e3 a5 8.ba5 Ra5 9.Bd3 Nc4 10.Bc4 dc4) 7.ba5 Ra5 8.e3 Nb6 9.Bd3 Nc4 10.Bc4 dc4; C) 6.e3 Nb6 (6...Bd6 7.Qh5 Nf7 8.Nf4 g6 9.Qg4 f5 10.Qd1 Nf6) 7.Nc3 a5 8.ba5 Ra5 9.Bd3 Nc4 10.Bc4 dc4.

3.d4 Bf5

4.Nc3 Nc6 A) 5.b5 Na5 6.e3 (6.Nf3 Nc4 7.Bc1 e6 8.a3 c6 9.bc6 bc6 10.e4) 6...Qd6 7.Bd3 Nh6 8.Nf3 0–0–0 9.0–0 Kb8 10.Qe2; B) 5.a3 e6 6.f3 (6.e3 Bd6 7.Bd3 Nge7 8.Nf3 0–0 9.0–0 Qd7 10.h3; 6.b5 Na5 7.Nf3 Bd6 8.Nh4 Ne7 9.Nf5 ef5 10.e3) 6...Nge7 7.e4 Bg6 8.Nge2 de4 9.fe4 Qd7 10.b5.

4.Nc3 e6 5.a3 c6 (5...a5 6.b5 (6.ba5 Ra5 7.e3 Nh6 8.Nh3 Nc6 9.Nf4 Bd6 10.Be2) 6...Bd6 7.Nf3 Ne7 8.e3 0–0 9.Bd3 Nd7 10.0–0) 6.Nf3 Bd6 (6...Nh6 7.Nh4 Bd6 8.Nf5 ef5 9.Bc1 Nf7 10.Qd3) 7.e4 de4 (7...Be4 8.Ne4 de4 9.Nd2 f5 10.Bc4) 8.Nh4 (8.Nd2 Ne7 9.Nde4 0–0 10.Bd3) 8...Nh6 9.Nf5 (9.Qh5 Kf8 10.Nf5) 9...ef5 (worse is 9...Nf5 10.Ne4 b5 11.c4+=) 10.Bc4 Qe7 (10...Ng4 11.Qe2 Nh2 12.Rh2 Bh2 13.Qh5 g6 14.Qh2 Qd4 15.Rd1+/–) 11.Qe2 (11.Qh5 Kd8=) 11...Nd7+= 12.Qh5 Kd8 13.0–0 Nb6 14.Bb3 Kc7 (14...a5 15.Ne2+=) 15.Rfe1 Qe8 16.Qh4 (16.Qe2 Qg6=) 16...Rd8 (16...Ng4 17.Ne4 Bh2 18.Kf1+=) 17.Bc1 Qg6 18.b5 c5 19.dc5 Bc5 20.Bf4 Bd6 21.h3 Nf7 22.Bd6 Nd6 (worse is 22...Kd6 23.Bf7 Qf7 24.f3+=) 23.Nd5 (23.Ne2 Ndc4+=) 23...Nd5–/+ 24.Bd5 Nb5 25.c4 Nd4 26.Rab1?? (better is 26.Qf4 Kd7 27.Kh2+=) 26...Nf3–+ (26...Nf3 27.Kh1 Nh4–+) 0–1. cyrilrussell (2550) – rthurc (2310), net–chess.com, 2010.

4.Nc3 e6 5.b5 A) 5...Nd7 6.e3 (6.Nf3 Bd6 7.e3 Ne7 8.Bd3 Bd3 9.cd3 0–0 10.0–0; 6.g3 Bb4 7.Nf3 Nh6 8.Bg2 0–0 9.a3 Bd6 10.0–0; 6.f3 Bb4 7.a3 Ba5 8.g4 Bg6 9.Nh3 Nb6 10.Kf2) 6...Bd6 7.Nf3 Ne7 8.Bd3 0–0 9.e4 de4 10.Ne4; B) 5...Bd6 6.Nf3 (6.e3 Ne7 7.Nf3 0–0 8.Bd3 a6 9.a4 ab5 10.ab5; 6.e4 de4 7.g4 Bg6 8.Bc4 Qe7 9.Qe2 Ba3 10.Ba3; 6.g3 Ne7 7.Nf3 Nd7 8.Bg2 Nb6 9.Nd2 0–0 10.0–0) 6...Nd7 7.e3 Ne7 8.Bd3 Bd3 9.cd3 0–0 10.0–0; C) 5...Nh6 6.Nf3 (6.f3 Bb4 7.a3 Ba5 8.Nh3 Bh3 9.gh3 Nf5 10.Qd2; 6.e3 Bd6 7.Nf3 0–0 8.Bd3 a6 9.a4 Nd7 10.0–0) 6...Nd7 7.e3 Bb4 8.Bd3 0–0 9.0–0 Nb6 10.a3; D) 5...Bb4 6.a3 (6.Nf3 Ne7 7.e3 Qd6 8.Bd3 0–0 9.a3 Ba5 10.0–0; 6.e3 Ne7 7.g4 Bg6 8.Nh3 0–0 9.Nf4 Qd6 10.a3; 6.f3 Ne7 7.g4 Bg6 8.Nh3 Qd6 9.e3 0–0 10.Nf4; 6.Nh3 Nd7 7.Nf4 Ne7 8.e3 e5 9.de5 Ne5 10.Be2; 6.g3 Ne7 7.a3 Bd6 8.Nf3 Nd7 9.Bg2 Nb6 10.Nd2) 6...Bd6 7.Nf3 Ne7 8.Nh4 0–0 9.Nf5 Nf5 10.e4.

4.Nc3 e6 5.e3 Bb4 6.g4 Be4 7.f3 Bg6 8.Nh3 Nc6 9.Nf4 Qd7 10.Bd3.

4.Nc3 e6 5.Nf3 A) 5...Nh6 6.b5 (6.a3 a5 7.b5 Be7 8.Nh4 0–0 9.Bc1 Bg4 10.h3) 6...a6 7.e3 Be7 8.h3 0–0 9.g4 Bg6 10.a4; B) 5...Nd7 6.Nh4 (6.a3 Bd6 7.Nh4 Ne7 8.Nf5 ef5 9.e4 0–0 10.ed5) 6...Bb4 7.Nf5 ef5 8.Qd3 Ne7 9.g3 Nb6 10.Bg2; C) 5...Kf7 6.b5 (6.Nh4 Bb4 7.Nf5 ef5 8.e3 Nc6 9.Bd3 Nge7 10.0–0; 6.a3 Nc6 7.e3 Bd6 8.Bd3 Nh6 9.0–0 a5 10.b5) 6...Nd7 7.e3 Bb4 8.Bd3 Ne7 9.0–0 Nb6 10.a3; D) 5...Bb4 6.a3 Ba5 7.Nh4 Nh6 8.e3 0–0 9.Bd3 Bd3 10.cd3.

4.Nc3 Kf7 5.e4 de4 6.Bc4 e6 7.g4 Bg6 8.d5 Ke8 9.Qe2 Bb4 10.0–0–0.

4.Nc3 Nh6 5.a3 A) 5...e6 6.Nf3 (6.f3 Bg6 7.e4 Nc6 8.b5 Ne7 9.Nh3 de4 10.fe4; 6.e3 a5 7.b5 Bd6 8.Nf3 0–0 9.Bd3 Nd7 10.0–0) 6...Bd6 7.Nh4 a5 8.Nf5 Nf5 9.b5 0–0 10.e4; B) 5...a5 6.Nf3 (6.b5 Qd6 7.Nf3 Nd7 8.e3 0–0–0 9.Be2 Kb8 10.0–0) 6...Kf7 7.b5 c6 8.e3 e6 9.Bd3 cb5 10.Nb5; C) 5...Qd6 6.e3 (6.Nf3 a5 7.b5 Nd7 8.e3 e6 9.Bd3 Bd3 10.cd3) 6...a5 7.b5 Nd7 8.Nf3 0–0–0 9.Be2 g5 10.0–0; D) 5...Kf7 6.f3 (6.Nf3 e6 7.e3 Nd7 8.Bd3 a5 9.b5 Bd6 10.0–0; 6.e3 e6 7.Nf3 a5 8.b5 c5 9.Bd3 Nd7 10.0–0; 6.g3 Nd7 7.Nf3 Nb6 8.e3 a5 9.b5 Qd7 10.Bd3; 6.Nh3 e6 7.e4 de4 8.d5 ed5 9.Nd5 Bd6 10.Bc4; 6.h3 a5 7.b5 e6 8.g4 Bg6 9.Nf3 Nd7 10.Nh4) 6...Nc6 7.e4 de4 8.Bc4 e6 9.Ne4 Bd6 10.Ne2; E) 5...Nc6 6.e3 (6.Nf3 e6 7.Nh4 Kf7 8.e3 Bd6 9.Nf5 Nf5 10.Bd3; 6.h3 e6 7.Nf3 Bd6 8.Nh4 0–0 9.g4 Bg6 10.Ng6; 6.g3 e6 7.Nf3 Bd6 8.Bg2 0–0 9.0–0 a5 10.b5) 6...e6 7.Bd3 Qd7 8.b5 Na5 9.Nh3 Bd6 10.Qh5.

4.Nc3 Nh6 5.e3 e6 (5...Nc6 6.a3 e6 7.Bd3 Qd7 8.Nf3 Be7 9.e4 de4 10.Ne4) 6.b5 (6.Bd3 Bb4 7.Qh5 Nf7 8.Bf5 ef5 9.Qf5 Qd7 10.Qd7; 6.a3 Bd6 7.Bd3 0–0 8.Nf3 Qd7 9.0–0 Nc6 10.e4) 6...Bd6 7.Nf3 0–0 8.Bd3 a6 9.a4 Nd7 10.0–0.

4.Nc3 Nh6 5.Nf3 A) 5...Nc6 6.b5 Na5 7.Nd2 Bg4 8.h3 Bh5 9.g4 Bf7 10.e4; B) 5...Qd6 6.e3 (6.a3 Nd7 7.e3 a5 8.Nb5 Qb6 9.c4 c6 10.c5) 6...Qb4 7.Rb1 Qd6 8.Bd3 Nc6 9.0–0 0–0–0 10.e4; C) 5...Kf7 6.e4 (6.e3 e6 7.a3 Nd7 8.Bd3 a5 9.b5 Bd3 10.cd3; 6.a3 e6 7.e3 Nc6 8.Bd3 Bd3 9.Qd3 Nf5 10.0–0; 6.b5 a6 7.Nh4 ab5 8.Nf5 Nf5 9.Nb5 Nc6 10.e4; 6.g3 e6 7.a3 Nd7 8.Bg2 a5 9.b5 Nb6 10.0–0; 6.h3 Nc6 7.a3 e6 8.g4 Bg6 9.Bg2 Bd6 10.Qd2) 6...de4 7.Bc4 e6 8.d5 ef3 9.de6 Ke8 10.Qf3; D) 5...e6 6.a3 (6.b5 a6 7.e3 Be7 8.a4 ab5 9.ab5 Ra1 10.Qa1) 6...Nc6 7.h3 Bd6 8.Nh4 Kf7 9.g4 Bg6 10.Ng6.

4.Nc3 Nh6 5.h3 A) 5...Nd7 6.Nd5 e6 7.Ne3 Bb4 8.c3 Be7 9.Nf5 Nf5 10.Nf3; B) 5...Nc6 6.g4 (6.a3 e5 7.Nf3 e4 8.Nh4 Be6 9.g4 Bd6 10.Bc1) 6...Bg6 7.a3 e6 8.Nf3 Bd6 9.Bg2 0–0 10.0–0; C) 5...e6 6.b5 (6.g4 Bg6 7.a3 Bd6 8.Nf3 0–0 9.Bg2 Nd7 10.Nh4; 6.a3 Bd6 7.Nf3 0–0 8.g4 Bg6 9.Bg2 Nd7 10.Nh4) 6...Bd6 7.Nf3 0–0 8.g4 Bg6 9.e3 a6 10.Bd3.

4.e3 e6 5.a3 Nd7 6.c4 c6 7.Nf3 Ne7 (7...Nb6 8.Nbd2+=) 8.Nh4+= g6 (8...Bb1 9.Rb1 Nb6 10.c5+/–) 9.Nd2 e5 10.cd5 cd5 11.Nf5 gf5 (better is 11...Nf5!? 12.de5 Ne5+/–) 12.Qh5+– Ng6 13.Qf5 Nb6? (better is 13...Qe7+–) 14.de5 Bg7 (14...Bh6 15.ef6 Qd6+–) 15.ef6 0–0 16.Qe6 (16…Rf7 17.fg7+–) 1–0. b4_player (2160) – Claudio, GameColony.com, 2003.

3.e3 Nc6

4.b5 Na5 5.f4 Bf5 6.Nf3 Bg4 7.Be2 Nc4 8.Bc4 dc4 9.Nc3 e5 10.fe5 fe5 11.Qe2 Nf6 12.Qc4 Bf3 13.gf3 Bd6 14.a4 Qd7 15.Rg1 0–0–0 16.a5 b6?? 17.ab6+– ab6 18.Ne4 Ne4? 19.Ra8 Kb7 20.Qe4 c6 21.bc6 Qc6 22.Rg7 Bc7 23.Ra7! (23...Ka7 24.Qc6 Ka6 25.Rc7 Rd4 26.ed4 Ka5 27.Ra7 Kb4 28.Bc3#) 1–0. pierre (2165) – juancabeta, internet, 2007.

4.b5 Nb4?? 5.a3+– 1–0. Wall,Bill – Fournie, internet, 2001.

4.b5 Nb8 =.

4.Bb5 Nh6 5.Nf3 Bd7 6.Bc6 Bc6 7.Nd4 Qd7 8.Qh5 g6 9.Qh3? e5 10.Qd7 Bd7–/+ 11.Nf3 Bg7 12.0–0 Bb5 13.d3=+ e4 14.Nd4+/– f5 15.Ne6?? Bb2–+ 16.Nc7 Kd7 17.Na8 Ba1 18.Na3 Ra8 19.Ra1 Kc6 20.de4 fe4 21.Nb5 Kb5 22.c3 Rc8 23.Rc1 Nf5 24.g4 Nh4 25.h3 a5 26.ba5 Ka5 27.Kh2 Ka4 28.Kg3 g5 29.Rb1 b5 30.f4 Rc3 31.fg5 Ng6 32.h4 Re3 33.Kf2 d4 34.h5 Nh4 35.Rc1 Rf3 36.Ke2 d3 37.Kd2 b4 38.Rc4 Ka3 39.Re4 Rg3 40.g6 hg6 41.h6 g5 42.h7 Ng6 43.Re6–/+ Rh3 44.Rg6=+ Rh7 45.Rg5 Ka2=+ 46.Ra5 Kb3 47.Kd3 Rg7 48.g5 Rd7 49.Ke4= Kc4 50.g6 Re7 51.Kf5 b3 52.Ra1 b2 53.Rg1 Kc3 (53...Ra7 54.Kf6=+) ½–½. Cleopatre – dias212, internet, 2007.

3.e3 Qd6

4.a3 a5 5.c4 =.

4.a3 b6 5.Bd3 g6 6.c4 Be6 7.Qa4 c6= 8.cd5 Qd5 9.Bf1 Qb3 10.Qb3+= Bb3 11.Ne2 Nd7 12.Nd4+/– Bd5 13.Nc3 Rc8? 14.Nd5 cd5 15.Bb5 Bh6 16.0–0 Rd8? 17.Ne6 Rc8 18.Rfc1 Rc1 19.Rc1 Kf7 20.Bd7 (20.Bd7 g5 21.Nd8 Kg6 22.Be6+–) 1–0. babai – Brambino, internet, 2008.

4.c3 Bd7 5.Bd3 (5.b5 e5=) 5...Nc6 (5...Nh6 6.Nf3=) 6.Qh5 g6 (6...Kd8!?=) 7.Bg6+/– Kd8 (7...hg6 A pinning theme 8.Qh8) 8.Bc2 (8.Nf3 e5 9.Ba3 Nce7+=) 8...Nh6 (8...e5 9.Ba3 (9.Bh7 Qe7–/+) 9...Qe6 10.Ne2+=) 9.b5 (9.d4 Bg4 10.Qh4 Bf5+/–) 9...Na5 (9...Ne5!? 10.Ba3 Qb6=) 10.Ba3+/– Qe6 11.Bb4 (better is 11.Ne2+/–) 11...Qe5?? (better is 11...Nc4 12.Ne2 Bb5+/–) 12.Qe5+– fe5 13.Ba5 Bb5 14.Na3 (14.d4 Bg7+–) 14...Bc6 15.Nf3 Bg7 16.Ng5 (16.c4 e4 17.Nd4 Bd4 18.ed4 Nf5+–) 16...Bf6 (16...Bd7 17.Bb3 (17.Nh7?! b6+–) 17...b6 18.Bd5+–) 17.Nh7 (17.Ne6 Kd7 18.Nc7 Rag8+–) 17...Ng4?? (better is 17...b6+–) 18.h3 (18.f3 Nh6 19.c4 dc4 20.Nc4 Bd5+–) 18...Nh6 19.Rb1 (19.Nf6 ef6 20.Nb1 Kd7+–) 19...d4? (19...b6 20.g4 e4 21.Nf6 ef6 22.Ke2+–) 20.f3 (better is 20.Nf6!? ef6 21.cd4 ed4+–) 20...b6 21.Nf6 ef6 22.Bb4 (better is 22.cd4 ed4 23.Be4 Be4 24.fe4 ba5 25.ed4 Re8+–) 22...Rg8?? (better is 22...a5 23.Bd6 dc3 24.dc3 cd6 25.Rb6 Kc7+–) 23.cd4 (23.ed4?! a5 24.Bc5 bc5 25.de5 Rg2 26.ef6 Bf3+–) 23...ed4 24.ed4 (24.ed4 a5 25.Bc3 Rg2 26.Be4 Be4 27.fe4+–) 1–0. Ramini,Edgardo – Graefe,Hartmut, E–4–051 CiF, 2002.

4.c3 e5 5.Nf3 =.

4.Bd4 e5 5.Bc5 Qd8 =.

3.e3 e5

(--> 1.b4 e5 2.Bb2 f6 3.e3 d5).

4.a3 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3).

4.a3 Bd6 5.Be2 Ne7 6.Nf3 Be6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Be6 5.Nf3 Bd6 6.Be2 Ne7).

4.a3 Bd6 5.Nf3 Be6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Be6 5.Nf3 Bd6).

4.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3).

4.b5 c5 5.Nf3 Be6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3 c5).

4.b5 c6 5.c4 Bd6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Bd6 5.c4 c6).

4.b5 Bd6 5.c4 c6 6.a4 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 c6 5.a4 Bd6 6.c4).

4.c4 c6 (--> 1.b4 c6 2.c4 d5 3.e3 e5 4.Bb2 f6).

4.Nf3 Be6 5.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3).

4.b5 Be6

(--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6).

5.d4 Nd7 6.de5 fe5 7.Nf3 Bd6 8.Nbd2 Ngf6 9.c4 c6 10.Be2 0–0 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 Nd7 6.de5 fe5 7.Nf3 Bd6 8.Nbd2 Ngf6 9.c4 c6 10.Be2 0–0).

5.d4 e4 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 e4).

5.d4 e4 6.Nd2 Bd6 7.c4 c6 8.a4 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 e4 6.Nd2 c6 7.a4 Bd6 8.c4).

5.Nf3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3).

5.Nf3 Bd6 6.d3 Ne7 7.Be2 0–0 8.0–0 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3 Bd6 6.Be2 Ne7 7.0–0 0–0 8.d3).

3.e3 e6

(--> 1.b4 d5 2.Bb2 e6 3.e3 f6).

4.a3 (--> 1.b4 e6 2.Bb2 f6 3.a3 d5 4.e3).

3.e3 Be6

4.d4 Bf5 5.c4 =.

4.d4 h5 5.Nc3 (5.Bd3 Qd6+=) 5...f5 (5...Bf5 6.a3+=) 6.Nf3 Nf6 7.Bd3 Ne4 8.0–0 Bd7 (8...Kd7!?+/–) 9.Nd5+– e6 10.Nc3 g5? (better is 10...Bc6 11.b5 Nc3 12.Bc3 Be4+–) 11.Ne4 fe4 12.Be4 Rg8 (12...Qc8+–) 13.Ne5 g4 14.Bb7 Na6 15.c3 Bb5 (15...Rb8 16.Ba6 Bd6 17.f4+–) 16.Qb3 Ke7 17.a4 Be8 18.b5 (18.Qc4 Rb8 19.Qa6 c5 20.bc5 Bg7+–) 18...Rb8 19.Ba6 Kf6 20.f4 gf3 (20...g3 21.h3 Qd5 22.c4+–) 21.Rf3 Ke7 (21...Kg7+–) 22.Ba3 c5 23.bc6 1–0. usingprogram – slavkozdesar, internet, 2011.

4.Ne2 Bf7 =.

4.Nf3 Bf7 5.d4 a6 6.Bd3 Nc6 7.a3 e6 8.0–0 Bd6 9.c4 Nge7? (better is 9...dc4 10.Bc4 Nge7+=) 10.c5+– Bh2 11.Kh2 Ng6 12.Rh1 0–0 13.Kg1 Re8 14.Qc2 (14.Nc3 Nce7+–) 14...e5 15.de5 fe5 16.Bf5 Qg5 (16...Qf6+–) 17.Ng5 1–0. Fournier,Frederic (1990) – Guest, ICC (queen.chessclub.com), 2003.

4.Nf3 Bf7 5.d4 c6 6.b5 e6= 7.a4 Ne7 8.Be2+= Ng6 9.Nbd2 e5 10.de5+/– fe5 11.0–0 Bd6= 12.Nb3 0–0 13.Nbd2 Be6 14.e4 Qd7 15.ed5 cd5=+ 16.Nb3 e4 17.Nfd4 Qf7 18.Ne6 Qe6 19.Nd4 Qf7 20.f3 e3 21.Bd3 Nd7 22.Nf5 Bc7 23.Ne3 Rae8 24.Ng4 Bb6 25.Kh1 Qf4? 26.Bg6+– hg6 27.Bc1?? Qf7 28.Bg5 Nf6?? 29.f4 Ng4 30.Qg4 Bd4 31.Rae1 Bf6 32.Re8 Re8 33.h4 Bg5 34.hg5 Qf5 35.Qf3 Re4 (36.a5 d4+/–). wood – Visara, Live Game Caissa's Web, 2005.

4.Nf3 g6 5.c4 dc4 6.Ng5 fg5 (better is 6...Bd5!? 7.e4 Bh6 8.ed5 Bg5+=) 7.Bh8+– Nf6 8.Na3 Nc6 9.Nc4 Nb4 10.Qa4 Nc6 11.Rb1 Bd7 12.Rb7 Ne5 13.Qc2 Nf7 14.Bf6 ef6 15.h4 1–0. pcmvr (2845) – lga (2250), net–chess.com, 2011.

3.e3 Bf5

(--> 1.b4 d5 2.Bb2 Bf5 3.e3 f6).

4.c4 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.c4 f6).

4.Nf3 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.Nf3 f6).

4.Nf3 e5 5.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Bf5 5.Nf3).

3.e3 g6

4.c4 e5 5.cd5 Bb4?? (better is 5...Qd5 6.a3 a5+=) 6.Qa4+– Bd7 (6...c6 7.Qb4 cd5 8.Bb5 Bd7 9.Nc3+–) 7.Qb4 b6 8.d4 Ne7 9.de5 Nd5 10.Qd4 Bc6 11.ef6 0–0 (11...Rf8+–) 12.e4 (12.Bc4 Na6 13.Ba6 Nf6 14.Bc4 Bd5+–) 12...Nf6 (12...Qf6 13.Qd5! Bd5 14.Bf6 Ba2 15.Be5+–) 13.Qd8 Rd8 14.Bf6 Rd6 (14...Re8 15.f3+–) 15.Be5 Re6 (15...Rd7 16.Nc3+–) 16.Bc4 Be4 (16...Kf7 17.Nd2+–) 17.Be6 Kf8 18.f3 Nc6 (18...Bb1 19.Bc7 Na6 20.Bd6 Kg7 21.Be5 Kf8 22.Ne2+–) 19.fe4 (better is 19.Bc7!? Nd4 20.Bd6 Ke8 21.fe4 Ne6+–) 19...Ne5 20.Nf3 Nd3 (20...Re8 21.Bh3 Nd3 22.Ke2 Nf4 23.Ke3 Nd5 24.Kd4+–) 21.Kf1 h6 22.Nc3 Re8 23.Bc4 Nf4 24.Rd1 c6 25.Rd6 b5 26.Bb5! Ke7 (26...cb5 27.Rf6 Double attack) 27.Rc6 Rd8 28.g3 Nh5 29.Rg6 (29.Rg6 Nf6 30.Rg7 Kf8 31.Ra7+–) 1–0. mare – Klarence, internet, 2001.

4.Nf3 e5 5.a3 Bg4 6.Be2 Bf3 7.Bf3 e4 8.Be2 Nc6 9.c4 d4 (9...dc4 10.Qc2+/–) 10.0–0 (10.b5 d3 11.bc6 de2 A) 12.Ke2?! Qd3 (worse is 12...bc6 13.Qc2+–) 13.Ke1 Qc4=; B) 12.Qa4+/–) 10...d3+= 11.Bg4 Nh6 (11...Bg7!?+=) 12.Be6+/– Qe7 13.Bd5 Bg7 14.Qa4 Qd7 (14...Kd7!?+/–) 15.Be4+– f5?? (better is 15...Ne5 16.Qd7 Kd7 17.Be5 Rae8+–) 16.Bg7 Qg7 17.Bc6 bc6 18.Qc6 Ke7 19.Nc3 Rhc8 20.Nd5 Kf8 21.Qc5 Ke8 22.b5 Ng4 23.e4! fe4 (23...c6 24.bc6 Ne5 25.ef5 Nc6 26.Rae1 Kf7 27.Re6+–) 24.f3 ef3 (24...c6 25.fg4 cd5 26.Qd5 Qe7+–) 25.Rae1 Ne5 (25...Kf7 26.Re7 Kg8 27.Rg7 Kg7 28.Qd4 Kh6 29.Rf3 Rf8 30.Rh3 Kg5 31.Rh7 Rf3 32.gf3 Kf5 33.fg4 Ke6 34.Nc7) 26.Rf3 Kd8 (26...Rd8 27.Re5! Qe5 28.Rf8 Kd7 29.Qc6 Kc8 30.Qa8 Kd7 31.Qd8 Ke6 32.Qe7) 27.Re5! Qe5 (27...Qe5 28.Rf8 Mate attack) 28.Rf8 Qe8 29.Qe7 1–0. Janek – Nick, internet, 2016.

4.Nf3 f5 5.Bh8 Nf6 6.Bf6 ef6 7.a3 c6 8.c4 dc4 9.Bc4 b5 10.Bb3 Qe7 11.0–0 Qd6 12.Nc3 a5 13.ba5 Qd3 14.Nd4 b4 (14...Bd6 15.Bc2 Qc4 16.a4+–) 15.ab4 Bb4 16.Be6 (16.Bc2 Qa6+–) 16...Nd7 (16...Be6 17.Ne6 Ra5 18.Ra5 Ba5 19.Nf4+–) 17.Nc6 Ra6 (17...Bc3 18.dc3 Qc3+–) 18.Nb4 Qd6 19.Bd7 Bd7 20.Na6 Qa6 21.Nd5 Bb5 22.Nc7 (22...Ke7 23.Na6 Ba6 24.d3+–) 1–0. hal1958 – Thrustagain, HCL–B2113 playchess.de, 2003.

4.Nf3 Bg7 (--> 1.b4 g6 2.Bb2 f6 3.e3 Bg7 4.Nf3 d5).

3.e3 Nh6

4.a3 a5 =.

4.c4 c6 5.Nc3 (5.a3 Bg4 6.f3 Bf5=) 5...Be6 (5...e5 6.a3=) 6.cd5+= Bd5 7.f4 (7.a3 e5+=) 7...Qd6 (7...e5 8.Nd5 Qd5 9.fe5 fe5 10.Qh5 Nf7 11.Qg4=) 8.a3+= Nd7 9.Nf3 Rd8 (9...Nb6 10.Nd5 Nd5 11.g3+=) 10.Be2 (10.Nd5 Qd5 11.Rc1 Nb6+=) 10...e5 11.e4 (11.Nd5 Qd5 12.fe5 Ne5 13.Ne5 fe5+=) 11...Bf7= 12.0–0 (12.fe5 Ne5 13.Ne5 fe5+=) 12...Be7 (12...ef4 13.d4+=) 13.d4 (13.Qa4 a6=) 13...ef4+= 14.Rc1 (14.Bc1 Ng4=) 14...0–0 (14...Ng4 15.Qa4 Ne3 16.Rf2–/+) 15.e5 (better is 15.d5!?+=) 15...fe5–/+ 16.Ne4 Qb8 (16...Qd5 17.Qc2 Ng4 18.Qb1–+) 17.Nfg5 (17.Qc2 ed4 18.Nd4 Nb6–/+) 17...Bd5–+ 18.Bd3 (18.Qd3 Qc7–+) 18...Nf5 19.Qh5 h6 20.de5 (better is 20.Nf3 ed4 21.Rfe1–+) 20...Ne5 (20...hg5 21.Ng5 Nh6 22.Qg6 Bg5 23.Qh7 Kf7 24.Qg6 Ke7 25.Qg5 Ke6 26.Rce1=) 21.Bb1 (21.Be5 Qe5 22.Nf3 Qb2–+) 21...hg5 (better is 21...Nc4 22.Rc4 Bc4 23.Rc1–+) 22.Ng5 Nh6 23.Be5?? (better is 23.Nh7 Neg4 24.Nf8 Kf8 25.Qg6–+) 23...Bd6 (better is 23...Qe5 24.h4 Qe3 25.Kh1 Bg2 26.Kg2 Qg3 27.Kh1 Rd2 (27...Qa3?! 28.Qg6 Bg5 29.Qh7 Kf7 30.Qg6 Ke7 31.Qg5 Kd7 32.Rcd1 Kc8 33.Rd8 Rd8 34.Qf4–+) 28.Bh7 Kh8 29.Qe2 Re2 30.Rf2 Qf2 31.Nf7 Nf7 32.Rc6 Qe1) 24.Qh6!!+– gh6 (24...gh6 25.Bh7 Mate attack) 25.Bh7 1–0. Pagano,N (2005) – Troiani,C (1790), Capo d'Orso Open, Porto Mannu Palau ITA, 2008.

4.c4 e5 5.cd5 Qd5 6.Nc3 =.

4.Bd3 g6 5.Nc3 e6 6.a3 Nf7 7.f4 f5 (7...a5 8.b5=) 8.Na4 b6? (better is 8...Rg8+=) 9.Bh8+– Nh8 10.Nf3 Bg7 11.Nc3 a6 12.a4 Bd7 13.0–0 c6 14.a5 b5 15.Nd4 Nf7 16.Qb1 e5 17.fe5 Ne5 18.Qb3 Nd3 19.cd3 Be6?? (better is 19...Bd4 20.ed4 Qh4 21.Rae1 Kd8+–) 20.Ne6 Bc3 (20...Qe7 21.Ng7 Qg7+–) 21.Nd8 Ba1 22.Ra1 Kd8 23.Qc3 Kd7 (23...g5 24.Qh8 Kc7 25.Qe5 Kb7 26.Qf5+–) 24.Qg7 Kd6 (24...Kc8 25.Qh7 d4 26.ed4+–) 25.Qb7 1–0. Janek – Kevin, internet free game, 2016.

4.Nf3 e5 5.a3 =.

4.Nf3 Bg4 5.h3 Bf3 6.Qf3 e5 7.a3 Bd6? 8.Qd5+– c6 9.Qe6 Be7 10.d4 ed4 11.ed4 Qd6? 12.Qc8 Bd8 13.Qb7 0–0 14.Bc4 Kh8 15.Qa8 1–0. Wall,Bill – L5S1, internet, 1996.

4.f4 Bf5 =.

3.e4 d4

4.Bc4 Nc6 5.b5 Na5 6.Bg8 Rg8 7.d3 =.

4.Bc4 e5 5.a3 =.

4.Bc4 e5 5.c3 Nc6 6.Qb3 Nh6 7.Nf3 Bg4 8.0–0 Bf3=+ 9.gf3 Bd6 10.Na3 a6 11.Be6 Qe7 12.Nc2 a5 13.cd4 Bb4 White gets the initiative 14.Rad1 Rd8 15.d5+/– Na7 16.d4 c6 17.Nb4 Qb4 18.de5 Qb3 19.ab3 Ke7 20.Ba3 Ke8 21.d6 fe5 22.d7 Rd7 23.Rd7 Nb5 24.Rb7 Na3 25.Rd1 Rf8 26.Rdd7 Rf3 27.Rb8 1–0. Double Wood – Kunk, ChessWorld.net, 2005.

4.Bc4 g6 5.Nf3 e5 6.c3 d3 (6...dc3 7.Bc3 Nc6 8.0–0+=) 7.0–0+/– c6 (7...Nc6 8.Ne1+/–) 8.Na3 (8.Ne1 b5 9.Bd3 a5 10.ba5 Ra5+/–) 8...b5 (better is 8...Nh6!?+=) 9.Nb5!+/– cb5 (9...a5 10.Na3+/–) 10.Bd5+– (10.Bb5?! Kf7=) 10...Qd5?? (better is 10...Ne7 11.Ba8 Nd7+–) 11.ed5 Bd6 (11...a5 12.Qe1 Ne7 13.Ne5 fe5 14.Qe5+–) 12.Qb1 e4 (12...Bf5 13.Re1 Ne7 14.Nh4+–) 13.Qe1 Bf5 14.g4! Bg4 (14...Kd7 15.Nd4 Bg4 16.Qe4 Nh6+–) 15.Qe4 Kf7 (15...Ne7 16.Qg4 a5 17.Qd4+–) 16.Qg4 (16.Qg4 Kg7 17.Qc8+–) 1–0. pierre – GoldenGiant1, internet, 2010.

4.Bc4 Nh6 5.Nf3 e5 6.Nh4 (6.c3 dc3 7.Bc3 Bg4=) 6...Nc6 (6...Bb4 7.a3 Bc5 8.0–0–/+) 7.b5 (7.a3 Bg4 8.Nf3 Qd6=) 7...Bg4 (7...Na5 8.Bd5+=) 8.Nf3 Nb4?? (better is 8...Na5 9.Be2 Be6+=) 9.a3+– Nc2 (9...f5 10.ab4 fe4 11.h3+–) 10.Qc2 d3 (10...Bf3 11.gf3 Qd6 12.f4+–) 11.Qd3 Bd6 (11...Qd3 12.Bd3 Bc5 13.Be2+–) 12.Nc3 (12.Qd5 Rb8+–) 12...c5 (12...Bc5 13.Bd5+–) 13.Nd5 (13.h3 Bh5+–) 13...f5 (13...Be6 14.0–0+–) 14.Ne5 (14.Ne5 fe4 15.Qe4+–) 1–0. Wall,Bill – Helives, internet, 2003.

4.Bc4 Nh6 5.Qh5 g6 6.Qd5 Qd5 7.ed5 Nf5 +=.

4.Nf3 e5 5.b5 c5 6.Bc4 (6.Na3 Nd7 7.c3 Nb6+=) 6...Nd7 7.0–0 (7.Na3 Nb6 8.Bb3 Qd6+/–) 7...Nb6+= 8.Ne5?? (better is 8.Na3+=) 8...fe5–+ 9.Qh5 Kd7 10.Qe5? (better is 10.Na3 Qe7 11.f4–+) 10...Nc4–+ 11.Qd5 Nd6 12.e5 Qb6 13.a4 (13.ed6 Qd6 14.Qb3 Kc7–+) 13...Ne7 14.Qd6 Qd6 15.ed6 Ng6 16.d3 Bd6 17.Nd2 b6 18.Rfe1 Bb7 19.Nc4 (19.Ne4 Rhe8–+) 19...Bc7 20.Rad1 (20.g3 Rhe8–+) 20...Rhe8 21.Bc1 Nh4 22.Bg5 (22.f3–+) 22...Ng2 (22...Ng2 23.Rf1 Re6–+) 0–1. Trkn – de Groot, itsyourturn.com, 2001.

4.Nf3 e5 5.b5 Be6 6.Be2 =.

4.Nf3 e5 5.b5 Bg4 6.Bc4 Ne7? (better is 6...a6=) 7.Ne5!+/– fe5 (7...fe5 8.Qg4 Discovered attack) 8.Qg4 g6 (8...Qd7 9.Qh5 Ng6 10.a4+/–) 9.0–0 (9.f4 Qd6+–) 9...Nd7 (9...Qd7 10.Qg3 Bg7+–) 10.Qe6 Nb6?? (10...Qb8+–) 11.Qf7 Kd7 12.Be6 Kd6 13.Bb3 Qd7 (13...Kc5 14.Qf6 Nc6 15.Qh8 Kb5 16.Qh7 g5+–) 14.Qf6 Kc5 15.Qe5 Nbd5 (15...Ned5 16.ed5 Kb5 17.a4 Ka5 18.d6 Ka6+–) 16.Qd4 Kb5 17.Ba4 Ka5 18.Bd7 Rd8 19.Qa4 Kb6 20.Qb5 1–0. pierre – oppoqua, internet, 2010.

4.Nf3 e5 5.c3 dc3 6.Nc3 (6.Bc3 Bg4=) 6...Bb4 7.Qb3 (7.Qa4 Nc6 8.Bb5 Bd6=) 7...Bc3 (7...Bc5 8.Rc1+=) 8.dc3= Nc6 (8...Qd7 9.Bc4 Nh6 10.0–0=) 9.Rd1 Qe7? (better is 9...Bd7=) 10.Ba3+– Qf7 11.Bc4 Qh5?! (11...Qg6 12.Bg8 Qe4 13.Kf1 Qg6+–) 12.Bg8 Na5 (12...Ne7 13.Bf7! Qf7 14.Rd8 Kd8 15.Qf7 Ng6 16.Qg7 Bg4 17.Qf6 Kd7 18.Ne5 Ne5 19.Qg7 Kc6 20.Qe5 Rad8 21.Qc5 Kd7+–) 13.Qd5 Nc6 (13...Bh3 14.gh3 c5 15.Qe6 Kf8 16.Bc5) 14.Be6 1–0. marre – bacm, internet, 2010.

3.e4 de4

4.Bc4 Bf5 5.Nc3 A) 5...e6 6.Qh5 g6 7.Qe2 Nc6 8.Ne4 Nd4 9.Qd3 e5+=; B) 5...Nc6+= 6.b5 (6.Nge2 e6 7.0–0 Bd6 8.Nb5 Be5 9.Be5 Ne5–/+) 6...Na5 7.Bd5 e6 8.Be4 Be4 9.Ne4 Nc4+=.

4.Bc4 Bf5 5.Qe2 Nc6 A) 6.Na3 e5 (6...e6 7.f3 Nd4 8.Qe3 ef3 9.g4 Nc2+=) 7.f3–/+ ef3 8.Nf3 Qd7 9.Bg8 Rg8–/+; B) 6.Bb3 e5 7.f3 Qd7 8.fe4 Bg4 9.Qf2 Bb4–/+; C) 6.Nc3 Nd4 7.Qh5 g6 8.Qd1 e5 9.Nge2 e3–/+; D) 6.a3 e5 (6...Qd6 7.Nc3 Nd4 8.Nb5 Ne2 9.Nd6 ed6+=; 6...Nh6 7.Bb5 Qd6 8.Nc3 0–0–0 9.Ne4 Be4–/+) 7.g4 Bg6 8.h4 h5 9.gh5 Bf5–/+; E) 6.f3 Nd4 7.Bd4 Qd4 8.c3 Qe5 9.fe4 Qe4–/+.

4.Bc4 Bf5 5.Qe2 e5 6.Bg8? (better is 6.f3!? ef3 (6...Nh6 7.fe4 Bg4 8.Nf3 Bb4 9.h3 Bc8=; 6...Nc6 7.fe4 Bg6 8.c3 Qd6 9.Nf3 0–0–0+=; 6...Qd7 7.fe4 Bg4 8.Nf3 Nc6 9.c3 0–0–0=) 7.Nf3+= Nc6 8.0–0 Nge7 9.Na3 Qd7=; 6.b5 Nd7 (6...a6) 7.Bd5 Nc5 8.Nc3 Ne7 9.Be4 Ne4–+; 6.Nc3 Bb4 7.a3 Bc3 8.Bc3 a6 9.Qh5 g6–/+) 6...Rg8–+ 7.Qc4 Rh8 8.Ne2 Qd6 (8...Qd7 9.Nbc3–/+) 9.a3 Qc6 10.Qc6 Nc6 11.Nbc3 Bg6 12.Nd5 (12.h4 h5–+) 12...0–0–0 13.c4 Bf7 (13...Nd4 14.Nd4 ed4 15.0–0–0–+ (15.Bd4?? c6–+)) 14.Ne3 (14.Ng3 Nd4 15.Rb1 Bg6–+) 14...Nd4 (14...a5 15.Ng3 ab4 16.ab4 Nb4 17.0–0–+) 15.Ng3 Nb3 16.Rd1 a5 (16...Bg6 17.Bc3–+) 17.Bc3–/+ Bg6 18.h4 h5 19.0–0 Nd4 20.Rfe1 ab4 21.ab4 Bd6 (21...b6!?–/+) 22.c5 Bf8 23.Ra1 (23.Nc4 Nf5 24.Ne4 Bf7+=) 23...Kb8 24.Ra2 c6 25.Rb2 Kc7 (25...Nb5 26.Nc4–/+) 26.Nc4+= Nf5 (26...Bf7 27.Nb6–/+) 27.Ne4 Nh4 (27...Bf7 28.Ne3 Ne3 29.Re3+=) 28.b5= Kc8 (28...Rd3!?=) 29.bc6+= bc6 30.Ned6 Kd7?? (better is 30...Bd6 31.Nd6 Rd6 32.cd6 Nf5+/–) 31.Be5! Ke6 (31...fe5 32.Rb7 Double attack (32.Rb7 Decoy)) 32.Bg3 (32.Bc3 Be4 33.Re4 Kd5 34.Ne3 Kc5 35.Nb7) 32...Kd5+– 33.Bh4 (better is 33.Nb6 Kd4 34.f3+–) 33...Bd6 34.Nd6 (34.cd6?! Kc4 35.Rc1 Kd5=) 34...Rb8 35.Nb7 Rhe8 (35...Rbe8 36.Re8 Re8 37.f3+–) 36.Re8 Re8 (36...Be8 37.f3+–) 37.f3 Bd3 (37...Ra8 38.Bf2+–) 38.Bf2 (better is 38.Rb4 Rb8 39.Bf2 Ke6+–) 38...g5 (38...Ra8 39.Rb4 Ke6 40.Rd4+–) 39.Nd6 (better is 39.Rb4!? Bb5+–) 39...Re2 40.Rb4 Rd2 41.Rd4 Ke6 42.Nc4 (42.Nb7!? Kf5+–) 42...Rd1 43.Kh2 Bc2 44.Rd6 (better is 44.Nd2!? Kf7+–) 44...Rd6 45.cd6 Bd3 46.Nb2 Ba6? (better is 46...Bf5 47.Bd4 Kd6 48.Bf6 g4+–) 47.Bc5 Bb5 48.Nd1 h4 (48...Bd3+–) 49.Nc3 1–0. De Visser,Arno – Dries, NBC, 1981.

4.Bc4 Bf5 5.Qe2 Bg6?? 6.Nc3+= e5 (6...Nc6 7.Ne4 Nb4 8.Rc1+/–) 7.Ne4+/– Bb4 (7...Nc6 8.Nf3+/–) 8.Nf3 Be4 (8...Nc6 9.0–0+/–) 9.Qe4 Nc6 10.c3 (10.0–0 Qd7 11.a3 Bd6+/–) 10...Bd6 11.Nd4 Nge7? (better is 11...Na5 12.Bg8 Rg8 13.Qh7 Kd7+=) 12.Ne6+– Qd7 13.Ng7 Kd8 (13...Kf8 14.Ne6 Ke8+–) 14.Be6 f5 (14...Qe6 15.Ne6 Kd7 16.Qc4+–) 15.Qh4 (15.Bd7?! fe4 16.Bh3 Nd5+/–) 15...Qe8 (15...Nb4 16.Bd7 Nd3 17.Kd1 Kd7 18.Kc2 Nb2 19.Kb2+–) 16.Ne8 Re8 (16...Ke8 17.Qh5 Kd8 18.0–0+–) 17.Bf5 1–0. pierre – oppox, internet live, 2010.

4.Bc4 Bf5 5.Ne2 Nc6 6.Ng3 Bg6 (6...Qd7 7.b5 Nb4 8.0–0 0–0–0 9.Nc3 Bg4+/–) 7.0–0 Nb4 8.Nc3 Qd7 9.Nce4 e6 +=.

4.Bc4 h5 5.Qe2= f5 (5...Bf5 6.Bg8 Rg8 7.Qb5 Qd7 8.Qb7=+) 6.d3 (6.Bb5 Nd7=+) 6...Nf6 (6...e5 7.a3 Qg5 8.g3= (8.Be5?? Qg2 9.Bb5 Nd7–+)) 7.de4 Ne4 (7...fe4 8.Nc3 Bg4 9.Qe3=) 8.Nf3 (8.Nc3 Nc3 9.Bc3 e6+=) 8...e6 9.a3 a6 (9...a5 10.0–0 ab4 11.Rd1=) 10.Nbd2 Nd2 11.Nd2 (< 11.Qd2 Qd2 12.Kd2 b5=) 11...b5 12.Be6 Be6 13.Qe6 Qe7 14.Qe7 Ke7 15.0–0 (15.0–0–0 a5+=) 15...Kf7 16.Rfe1 (16.c4 c5 17.bc5 Bc5=) 16...Bd6 (16...a5 17.ba5 Ra5 18.c4=) 17.Nf3 Nd7 18.Ne5 (18.Ng5 Kg6 19.Ne6 Nf6+=) 18...Ne5= 19.Be5 Rae8 (19...Rhd8 20.f4=) 20.Bd6 Re1 (20...cd6 21.Rad1=) 21.Re1 cd6 22.Rd1 ½–½. Hasler,Ulrich – Koehler,K, corr, 1993.

4.Qe2 e5 5.Qe4 Nc6 =+.

4.Qe2 f5 5.Qh5 g6 6.Qh4 (6.Qg5 Nf6–/+) 6...Nf6–/+ 7.Bc4 (7.a3 Nc6–/+) 7...e6?? (better is 7...Nc6–/+) 8.Qf6 (8.Qf6 Qf6 9.Bf6+–) 1–0. Wall,Bill – Nucnud, internet, 2003.

4.Qh5 g6 5.Qe2 Nc6 6.b5 Nb4 7.Qc4 (7.Qe4 e5 8.Na3 Qd5+=) 7...e6 (7...e5!?+=) 8.a3= Nd5 9.Qe4 (better is 9.Nc3=) 9...Nge7?? (better is 9...e5=) 10.c4+– f5? (better is 10...Nb6 11.Bf6 Rg8+–) 11.Qh4 Rg8 12.cd5 Qd5 (12...h6 13.de6 Be6 14.Nf3+–) 13.Qh7 (13.Nf3 Bg7 14.Bg7 Rg7+–) 13...Qe4 (13...e5 14.Nf3 e4 15.Ng5+–) 14.Ne2 Qc2 (14...e5 15.d4+–) 15.Bf6 Nd5 (15...e5 16.Be5 Be6+–) 16.Qg8 Nf6 17.Qg6 Ke7 18.Nbc3 Qb2 (18...e5+–) 19.Ra2 Qb3 (19...Qa2 20.Na2 a6 21.Qg3+–) 20.Nd4 (20.Nd4 Qa2 21.Na2+–) 1–0. Wall,Bill – Skewer, internet, 2003.

4.Bc4 Nc6

5.a3 Bf5 A) 6.Ne2 e6 (6...Qd6 7.Ng3 e6 8.Nc3 0–0–0 9.Nce4 Qf4+=; 6...Qd7 7.Ng3 0–0–0 8.0–0 e5 9.Qe2 Bg4+=) 7.Ng3 Qd7 8.b5 Na5 9.Be2 0–0–0+=; B) 6.Nc3 Qd7 7.f3 ef3 8.Nf3 0–0–0 9.0–0 e5–/+; C) 6.b5 Na5 (6...Nd4 7.Ne2 e5 8.Nd4 ed4 9.0–0 Qd7=) 7.Ba2 Qd6 8.Ne2 0–0–0 9.Bc3 Qb6+=.

5.Nc3 Bf5 6.a3 (6.Rb1 e6 7.Nge2 Ne5 8.Bb3 Bb4 9.Ng3 Qd7+=; 6.Nge2 e6 7.0–0 Bd6 8.Nb5 Be5 9.Be5 Ne5–/+) 6...Qd7 7.Nge2 e5 8.Ng3 Bg4 9.Qc1 h5 =.

5.Qe2 Nb4 6.Qe4 Nh6 7.Nf3 e5 8.Na3 Bf5 9.Qe2 Qe7 +=.

5.Qe2 e6 6.Qe4 Nb4 (6...Bb4 7.Nf3 Qd7 8.0–0 Nge7 9.Re1 0–0=) 7.Na3 Nh6 8.Nf3 Nf5 9.Bb3 Nd5 =.

5.Qe2 f5?? 6.Bg7!+/– Bg7 (6...Bg7 7.Qh5 Double attack 7...Kd7 8.Qf5 Ke8 9.Qh5 Kd7 10.Qg4 Kd6 11.Qg7 Nf6) 7.Qh5 Kd7 8.Qf5 Ke8 9.Qf7 (9.Qf7 Kd7 10.Qd5 (10.Qg7 Nf6 11.Ne2 Nb4) 10...Ke8 11.Qh5 Kd7 12.Qg4 Kd6 13.Qg7+/–; 9.Qh5 Kd7 10.Qg4 Kd6 11.Qg7 Nf6) 1–0. Trokenheim,Marek (2175) – Kaeser,Werner (1905), remoteschach.de, 2010.

5.Qe2 Bf5 6.f3 (6.b5 Nd4 7.Qd1 e3 8.d3 ef2 9.Kf2 Nh6–+) 6...Nb4 (better is 6...Nd4 7.Bd4 Qd4–/+ 8.c3 Qe5 9.fe4 Qe4–/+) 7.Bb3? (better is 7.Na3 Qd7 (7...ef3 8.Nf3–/+ Bc2 9.Nd4 Bg6+=) 8.fe4 Bg4 9.Nf3 e5+=) 7...ef3–+ 8.Qf3 (8.Nf3 Nc2 9.Bc2 Bc2–+) 8...Bc2 (8...Nc2!? 9.Bc2 Bc2 10.Nh3–+) 9.Qh5 g6?? (better is 9...Bg6 10.Qb5 Nc6 11.Qb7 Na5 12.Ba4 Kf7–+) 10.Qb5+/– c6 (10...Qd7 11.Qb4 Bb3 12.ab3+/–) 11.Qb4 Bb3 (11...a5 12.Qc4 Bd3 13.Qf7 Kd7 14.Qe6 Kc7 15.Nf3+/–) 12.ab3 Bh6? (better is 12...e5 13.Qb7 Ne7+/–) 13.Qb7+– Rb8 (13...Qc8 14.Qc8 Rc8 15.Ra7+–) 14.Qc6 Kf7 (14...Qd7 15.Qd7 Kd7 16.Ra7 Kc8 17.Nf3+–) 15.Qc4 (15.Ra7?! Qd3 16.Ra1 Rb3+=) 15...Kf8 (15...Kg7 16.Nf3 Qd6 17.Nd4+–) 16.Ra7 (16.Ne2 Qd7 17.Nd4 Rc8 18.Ra7 Rc4 19.Rd7 Rb4+–) 16...Rc8 (16...Bf4 17.Ne2 Qb6+–) 17.Qa4 (better is 17.Qe4+–) 17...e5?? (better is 17...Qd3 18.Qa2 Be3+–) 18.Ba3 Ne7 19.Be7 Qe7 20.Re7 Rc1 (20...Ke7 21.Qa7 Ke6+–) 21.Ke2 Ke7 22.Nc3 (better is 22.Qa3 Kf7 23.Qc1 Re8+–) 22...Bd2 23.Kd2 (23.Kd2 Rc3 24.Kc3 Rc8 25.Kb2+–) 1–0. marus – busybee17, internet live, 2001.

5.Qe2 Nh6 6.Na3–/+e5 7.c3 Bg4 8.Qe4 Qd7 9.Qd5 0–0–0 –/+.

5.Ne2 A) 5...Nh6 6.a3 Nf7 (6...e6 7.Ng3 Be7 8.Ne4 0–0 9.d4 f5=) 7.0–0 e6 8.Nbc3 f5 9.d3 Nce5=; B) 5...f5+= 6.0–0 Nb4 (6...Nf6 7.d3 e5 8.a3 ed3 9.cd3 Bd6=; 6...e5 7.d4 Bb4 8.de5 Qd1 9.Rd1 Na5=) 7.Nf4 Nf6 8.a3 Qd6 9.Bf6 Qf4+=.

4.Bc4 e5

5.a3 a5 –/+.

5.a3 a6 6.Nc3+= Bf5 (6...f5 7.Nh3+=) 7.Nge2 Nc6 (7...Bg6 8.0–0+=) 8.Ng3+/– Bg6 9.h4 h6 (9...Qd7 10.Nce4 0–0–0 11.0–0+=) 10.h5 (10.Nce4 f5 11.Nc5 Bc5 12.bc5 Qe7+=) 10...Bh7 11.Nge4 (11.0–0+=) 11...Be4 (better is 11...f5!? 12.Nc5 Bc5 13.bc5 Nf6=) 12.Ne4+/– Nge7? (better is 12...f5 13.Ng3 Qd7+/–) 13.0–0 Nf5 (13...Nd5 14.Qg4 Nce7 15.Nc5+–) 14.Qg4 Ncd4 (14...Nd6 15.Bd5 Ne4 16.Qg6 Kd7 17.Qg4 Ke8 18.Qe4 Ne7+–) 15.c3 Nd6 (15...Ne7 16.cd4 f5 17.Qf3 fe4 18.Qe4+–) 16.Nd6 Qd6 (16...Bd6 17.cd4 Qd7 18.Be6+–) 17.cd4 ed4 (17...f5 18.Qf5 Qf6 19.Qg4+–) 18.Rae1 Kd8 19.Re4 c5 20.bc5 Qc5 21.Rc1 Qg5 22.Rd4 Ke7 (22...Kc7 23.Rd7 Kb8 24.Qe4 Qb5 25.Bb5 ab5 26.Rb7) 23.Qd7# 1–0. wiking – vitsy, internet, 2010.

5.a3 Nc6 6.Qh5=+ g6 7.Qe2 Nd4 (7...f5 8.Bb5 Bg7 9.Bc6 bc6 10.f3=+) 8.Bd4= (8.Qe4?? Bf5 9.Qb7 Rb8–+ (9...Nc2?! 10.Kf1 Na1 11.Qc6 Ke7 12.Nc3–+)) 8...Qd4 9.c3 Qd6 (9...Qb6 10.Qe4 Bf5 11.Qe2=+) 10.Qe4= f5 (10...c6 11.d4=) 11.Qe2 Be6 (better is 11...Ne7!?=) 12.Be6+/– Qe6 13.Qb5 Qc6 14.Qe5 (14.Qe5 Kf7 15.Nf3+/–) 1–0. Wall,Bill – Sleep, internet, 2005.

5.a3 Bf5 6.Ne2 Nc6 7.Nbc3 Nd4 (7...Qd7 8.Ng3=) 8.Ng3 e3 9.Nf5 ef2 10.Kf2 Nf5 11.Ne4 Qb8? (better is 11...Nd6!? 12.Nd6 Qd6=) 12.Qg4 Nge7 13.Qh5 Kd8 14.Nc5 b6 15.Ne6 Kd7 16.Qg4 b5 17.Bb3 (17.Nf8?! Rf8 18.Bd3 Qb6 19.Kf1 Qe6 20.Bb5 c6=) 17...h5 18.Qf3 (18.Nf8?! Rf8 19.Qe4 Qb6 20.d4 Nd6=) 18...c6 19.Rad1 (19.Nf8?! Rf8 20.c3 g6+=) 19...g5? (better is 19...Qb6!? 20.d4 g6+–) 20.d4 g4?? (20...Qb6 21.Nc5 Ke8 22.de5 fe5 23.Be5 Rh6+–) 21.de5 Ke8 22.ef6 gf3 (22...Qb6 23.Nc5 Bh6+– (23...gf3?? 24.f7)) 23.Nc7!! Qc7 24.f7# 1–0. Pierred (2250) – Guest866306, Rated game, 5m + 0s, 2005.

5.a3 Bf5 6.Ne2 Nc6 7.Ng3 Bg6 (7...Qd7 8.Nc3 Bg4 9.Qc1 0–0–0 10.Nce4 Be7 11.d3 h5 12.h3=) 8.h4 (8.Nc3 f5= 9.0–0 (9.d3 ed3 10.0–0 dc2 11.Qc2 f4 12.Nge4+=; 9.b5 Nd4 10.0–0 Qg5 11.Re1 Nf6 12.a4–/+) 9...Qg5 10.d3 0–0–0 11.Bc1 Qe7 12.Bd5+=; 8.0–0 Qd7 9.Nc3 (9.Re1 f5 10.d3 0–0–0 11.Nc3 Nf6 12.de4+=) 9...f5 10.d3 ed3 11.b5 Nd4 12.cd3=) 8...Nh6+= (8...Qd7 9.Nc3 f5 10.d3 Nd4 11.de4 f4 12.Nf5+=) 9.h5 Bf5 (9...Bf7 10.Bf7 Nf7 11.Qg4 (11.0–0+= Qd7 12.Ne4–/+) 11...Qc8 12.Qe4+=) 10.Nf5 (10.0–0 Qd7 (10...Bg4 11.Qe1 Nf5+= 12.Ne4+=) 11.Nf5 Qf5 12.Bd5+=) 10...Nf5 11.Nc3 (11.0–0 Qd7 (11...Nd6 12.Bd5 Qd7=) 12.Nc3+=) 11...Nd6 12.Bd5 f5 13.d3 (13.0–0 Qf6=) 13...Nd4+= 14.0–0 (14.Ne2 c6 15.Ba2 Qg5 16.Bd4 ed4+=) 14...c6 15.Ba2 Qg5 16.de4 f4 17.Bc1 (17.f3 0–0–0–/+) 17...0–0–0–/+ 18.Bd2 g6 (18...Be7–/+) 19.Bc1 (19.a4!?–/+) 19...gh5–+ 20.Qd3 Bg7 (20...Kb8!? 21.Ne2 N6b5 22.Nd4 Nd4 23.Kh2–+) 21.Ne2–/+ Ne2 22.Qe2 Qg6 (22...Kb8 23.Bb2–/+) 23.f3 h4 24.Qf2 (24.Kh1 Qh6–/+) 24...h3 25.Kh2 hg2 26.Qg2 Nb5 (26...Kb8 27.Bb2–/+) 27.Qh3 (27.Bb2 Kb8 28.Rad1 Qh6 29.Qh3 Qf6+=) 27...Kb8–+ 28.c4 (28.Rg1!?–+) 28...Nd4 (28...Nc3 29.Bb3–+) 29.c5 (29.Rg1 Qf6–+) 29...Ne2 30.Re1 Ng3 31.Bb1 (31.Qg4 Qf6 32.Qe6 Qh4 33.Qh3 Qe7–+) 31...h5 (31...Rd4 32.Ra2–+) 32.Ra2 h4 33.Rg1 (33.Rb2 Qe8–+) 33...Qf7 (33...Bf6 34.Rag2–+) 34.Rf2 Qc4 (34...Rh6 35.Ba2 Qh5 36.Bc4–+) 35.Ba2 (35.Qg4 h3 36.Qg7–+) 35...Qd4 36.Rc2 Qd3 37.Qg2 Bf6 (37...h3 38.Qf2–+) 38.Qf2 (38.Bc4 h3 39.Qf2 Qd7–+) 38...h3 39.Bc4 Ne4 (better is 39...Qd7!? 40.Rd2 Qh7–+) 40.fe4–/+ Qe4 41.Rc3 Bh4 (better is 41...Qf5!?–/+) 42.Qe2= Qf5 43.Rf3 Bg3 (43...Rde8 44.Bb2=) 44.Rfg3= fg3 45.Rg3 e4 (45...Ka8 46.Bd3 Qd7 47.Qe5=) 46.Qf1+= Rdf8 47.Qf5 Rf5 48.Be3 Rf3 49.Rf3 ef3 50.Bf2 Kc7 51.Bd3 b6 (51...b5 52.cb6 ab6 53.Be4=) 52.Be4 b5 53.Bf3 Kb7 54.Bg3 Rf8 55.Bg4 (55.Bh5 Rf1=) 55...Rf1 56.Bh4 (56.Kh3 Ra1=) 56...Ra1 57.Bd8 (better is 57.Kh3!? Ra3 58.Kg2=) 57...Ra3–/+ 58.Bh3 ½–½. Luzuriaga,Norberto Horacio – Klausner,Helmut, E2000–4, 2000.

5.Be5?? fe5–+ 6.Qh5 Ke7?? 7.Qe5 (7.Qe5 Be6 8.Qe6#) 1–0. Dingbat – lonewolf, ICS game, 1998.

5.a3 Nh6

6.Nc3 a5 A) 7.ba5 Nc6 (7...Bg4 8.Nge2 f5 9.d4 Nc6 10.Bb5 Be2=) 8.Ne4 Ra5 9.Nf3 Nf7 10.0–0 f5=; B) 7.b5 Bg4 (7...Nd7 8.Ne4 Be7 9.Ne2 Nb6 10.Bb3 a4=) 8.Nge2 Nd7 9.Ne4 Nb6 10.Ba2 Qd7=; C) 7.Ne4 ab4 8.Qh5 g6 9.Qf3 f5 10.Qg3 Bg7=.

6.Nc3 Qd4 A) 7.Bb3 Bg4 8.Nge2 Qd7 9.b5 a6 10.a4 ab5=; B) 7.Bd5 Ng4 8.Nh3 Nh6 9.Be4 c6 10.Rb1 Qd6+=; C) 7.Qh5 g6+= 8.Qe2 Bg4 9.f3 ef3 10.gf3 Bf5+/–.

6.Nc3 Nd7 7.Ne4 Nb6 (7...a5 8.b5 Be7 9.Ne2 Nb6 10.Ba2 Na4=) 8.Bb3 Bf5 9.Qe2 Qd7 10.Nf3 Nd5 =.

6.Nc3 Bf5 7.Nge2 Nc6 (7...Nd7 8.0–0 Nb6 9.Bb3 Qd7 10.Ng3 0–0–0+=; 7...Qd7 8.0–0 Nc6 9.Ng3 Bg4 10.Qe1 Nf5=) 8.0–0 Qd7 9.Ng3 Bg4 10.Qe1 Nf5 =.

6.Ne2 a5 A) 7.b5 Nd7 (7...Nf5 8.Nbc3 Nd6 9.Ba2 Bg4 10.0–0 Nd7=; 7...Nf7 8.0–0 Nd6 9.Ba2 Nd7 10.Ng3 h5=; 7...Bc5) 8.0–0 Nb6 9.Ba2 Bg4 10.Qe1 Qd7+=; B) 7.Nbc3 f5 (7...ab4 8.ab4 Ra1 9.Qa1 Bb4 10.Ne4 Nc6=) 8.b5 (8.0–0= Nd7 9.b5 Nb6 10.Ba2 Nf7+=) 8...Ng4 9.h3 Qh4 10.g3 Qh6+=.

6.Ne2 c5 7.Ng3 (7.Nbc3!?+= cb4 (7...f5 8.0–0 Nc6 9.d3 cb4 10.ab4 ed3=) 8.ab4 Bb4 9.0–0 Nc6 10.Ne4 f5=; 7.0–0 Nc6 (7...cb4 8.Ng3 Nc6 9.ab4 Bb4 10.Ne4 Bg4=) 8.b5 Nd4 9.Nbc3 Be6 10.Be6 Ne6=) 7...cb4 (7...Bg4 8.Qc1 cb4 9.ab4= Qc8 10.Bb3 Be6=) 8.0–0 ba3 (8...Bg4 9.Qe1= Nc6 10.ab4 Bb4+=; 8...Nc6 9.ab4 Bb4 10.Ne4 Bg4=) 9.Na3+= Nc6 10.Ne4 Bg4 (10...Bf5 11.Re1 Nf7+/–) 11.Be2 (better is 11.Qe1!?+=) 11...Bf5= 12.Bh5 (12.Bd3 Bb4=) 12...g6+= 13.Bf3 Be7 14.Nc4 (14.Qe2 0–0+=) 14...Be6 15.Ne3 (15.d3 0–0+=) 15...0–0–/+ 16.Nc3 Nf5 17.Nf5 (17.Bd5 Qd7–/+) 17...Bf5 18.d3 (18.Nd5 Bc5 19.Qe2 Qd6–/+ (19...Bc2? 20.Qc4+–)) 18...Qd7 19.Qd2 (19.Nd5 Bc5–/+) 19...Bb4 (19...Nd4 20.Bd5 Kg7 21.Be4–+) 20.Qe3 (20.Ba3!? a5 21.Bb4 Nb4 22.Na4–/+) 20...Nd4–+ 21.Bd1 (21.Rac1 Nf3 22.Qf3 Rad8–+) 21...Rac8 22.Na2? (22.Ne4 Nc2 23.Bc2 Rc2 24.Ba3 Ba3 25.Ra3–+) 22...Nc2 23.Bc2 Rc2 24.Be5 (24.Nb4 Rb2 25.Qc5–+) 24...Bd2 (24...fe5?! 25.Nb4 Rb2 26.Qc5–+) 25.Qa7 fe5 (25...fe5 26.Rab1 Rf7–+) 0–1. Dubleumortier – Vettenburg, corr SOK–96–117, 1996.

4.Bc4 e6

5.Nh3 Bd6 6.Nc3!? Be5 A) 7.0–0 Nh6 8.Qe2 0–0 9.Rab1 f5 10.d4 Bd6+=; B) 7.Qh5 Kf8 (7...g6 8.Qe2 a5 9.b5 Nh6 10.Rb1 f5+=) 8.0–0 (8.0–0–0= Nc6 9.b5 Na5 10.d4 Bd6=) 8...g6 9.Qe2 Nc6 10.Qe4 Kg7+=.

5.Nh3 Bd6 6.Qg4 Qe7= (6...Bb4?? 7.Qg7 Qe7 8.Qh8+–) 7.a3 (7.Qe4 Nc6= (7...Nd7) 8.a3 e5 9.b5 f5 10.Qe3 Nd4=; 7.Nc3 f5 (7...Nh6 8.Qe4 Nc6 9.a3 Ne5 10.Bb3 0–0=; 7...Be5 8.Qe4 Nc6 9.b5 Na5 10.Bd3 Nh6+/–) 8.Qh5 Qf7 9.Qf7 Kf7 10.Ng5 Kg6=; 7.0–0 Nc6 8.Qe4 Nb4 9.d4 Nh6 10.Re1 c6=) 7...Nh6 (7...a5 8.b5 (8.0–0= ab4 9.ab4 Ra1 10.Ba1 Nc6=) 8...Nd7 9.Qe4 Nc5 10.Qf3 Na4=; 7...Nd7 8.Bb3 a5 9.Qe4 ab4 10.ab4 Ra1=) 8.Qe4 Nc6 (8...a5 9.b5 (9.Nc3= ab4 10.ab4 Ra1=) 9...Nf5 10.0–0 Nd7+=; 8...Nd7 9.0–0 a5 10.Nc3 Ne5+=) 9.0–0 Ne5 (9...0–0 10.d4 (10.Nc3= Ne5=) 10...Kh8+=) 10.Bb5 (10.Be5!? Be5 11.d4+=) 10...c6= 11.Be5 (better is 11.f4!? f5 12.Qe2=) 11...Be5–/+ (worse is 11...cb5 12.Bd6 Qd6 13.Nc3=; 11...fe5? 12.Bc6 Kf7 13.f4 ef4 14.Nf4+–) 12.Bc6? (12.d4 Bh2! 13.Kh2 cb5 14.Kg1+=) 12...Kf7?? (better is 12...bc6 13.Qc6 Kf7 14.Qa8 Ba1–+) 13.d4= bc6?? (better is 13...Bh2 14.Kh2 Qd6 15.Kg1 Qc6=) 14.de5+– Bb7 (14...f5 15.Qf4 Rd8 16.Ng5 Kg8 17.Nc3+–) 15.ef6 gf6 16.Rd1 (16.Re1!? Rad8 17.Nf4 e5+–) 16...c5+/– 17.Qe3 (17.Qh4 Nf5 18.Qh5 Kg7+/–) 17...Rhg8 (17...Nf5 18.Qc5 Rag8 19.g3+=) 18.g3 (18.Nf4 cb4 19.ab4 Rg4+/–) 18...Ng4 (18...Nf5 19.Qc5 Bf3 20.Qe7 Ke7 21.Rd3+=) 19.Qc5 Qc5 (19...Ne5 20.Nd2 Rad8 21.Qe7 (21.Qa7?? Rd2 22.Qe3 Rc2–+) 21...Ke7 22.Kf1+=) 20.bc5+/– Rad8 21.Nd2 e5 (better is 21...Ne5!? 22.Rab1 Bc6+/–) 22.Nc4+– Rd4?? (better is 22...Kg6+–) 23.Rd4 ed4 24.Nd6 (24.Nd6 Ke7 25.Nb7+–) 1–0. Bonetti,Shane – ShadowRook, ICC, 2002.

5.Nh3 Bd6 6.Ng5 Nc6 7.Be6 Nh6 8.b5 Nb4 9.Bc8 Qc8 10.Ne4 0–0 +=.

5.Qh5 g6 6.Qh4 Bb4?!

5.Qh5 g6 6.Qh4 Nc6 7.a3 =.

5.Qh5 g6 6.Qh4 Bg7 7.Bc3 (7.Ne2 Nc6=) 7...Qe7 (7...Nh6 8.Qe4 Nf7 9.Qe3=) 8.Qe4= f5 (8...Nh6 9.Nf3=) 9.Qe2+= Bc3 (9...Nc6 10.Bg7 Qg7 11.c3 Nb4 12.d4+=) 10.Nc3 (10.dc3 Nd7+=) 10...Nf6 (10...Nc6 11.a3+/–) 11.Nf3+/– Nc6 12.0–0 (12.b5 Nb4 13.Rc1 Nbd5+/–) 12...0–0 (12...Nb4!? 13.d3 Nbd5+=) 13.a3+/– Re8 (13...Qd7 14.Rfe1+/–) 14.Rfe1 (14.d4 Qd6 15.Nb5 Qd7+–) 14...Kg7 (14...Rd8 15.d3+–) 15.Bb5 (15.d4 Qd6 16.Rad1 a5+–) 15...Qd6 (15...Bd7 16.Ba4+–) 16.Bc6 Qc6 17.Nd4 (17.Qe3!? Bd7+–) 17...Qd7 18.Qe5 c6 (18...a6 19.Nf3+/–) 19.Re3 (19.Nb3 Rd8+/–) 19...Kf7 (19...Rd8 20.Rd3 Qe7 21.Re1+–) 20.Qc5 (20.Rd3 Qe7+/–) 20...Nd5 (20...Ng4 21.Rh3 Kg8 22.Re1+=) 21.Re5 (21.Nd5 ed5 22.Rae1 Re3 23.Re3+– (23.de3?! Qe7+=)) 21...Nc3 (21...Nf6!? 22.Nf3 b6+/–) 22.Qc3+– Qd6 (22...Kg8 23.Rae1 Rd8 24.Nf3+–) 23.Rae1 Bd7 (23...Rd8 24.Nb3+–) 24.Nf3 h6? (24...b6+–) 25.R5e3 Rad8 (25...Kg8 26.Ne5 Re7 27.Rh3+–) 26.Ne5 (26.Ne5 Kg8 27.Ng6+–) 1–0. Roggensack_Hanspach,Peter – Grund,Karl, corr SOK–87–14, 1987.

5.Nh3 Bb4

6.Qh5 g6 7.Qh4 Nc6 8.Qe4 Qe7 9.Ng5 Nd8 10.0–0 Nh6 11.a3 Ba5 12.Re1 e5? (Better is 12...0–0!? 13.Ne6 Be6 14.Be6 Qe6 15.Qe6 Ne6 16.Re6 Rae8 17.Re8 Re8=) 13.Be5!+/– fe5 (13...Qe5 14.Qe5) 14.Qe5 Qe5 15.Re5 Kf8 16.Ra5 Nc6 17.Rb5 a6 18.Rb2 Kg7 19.Nc3 Rf8 (Better is 19...Na5 20.Ba2 Bf5+–) 20.Nd5 b5 (20...Ra7 21.Nc7 Nd4 22.Rb6+–) 21.Nc7 Ra7 1–0. Bonetti,Shane – chessfish (1745), ICC, 2002.

6.Qh5 Kf8

7.Nf4 Qe8 8.Qh3 Qc6!? 9.Be6 Nd7 = (< 9...Qc2 10.Ba3 +–).

7.Nf4 Qe8 8.Qh3 e6 draws heavy fire 8...e5 (8...Ne7 9.Ne6 Be6 10.Be6+=) 9.Ng6= hg6 A pinning theme (9...Qg6 Deflection from c8 10.Qc8) 10.Qh8+= A pinning theme 10...Be6 11.Be2 (11.Be6 Qe6 12.0–0 Qg4+=) 11...Qc6= 12.Nc3 Nd7 (12...e3 13.fe3 Qg2 14.Rf1=) 13.0–0 Nc5 14.a3 (14.Rfb1 Rd8 15.Rd1 Kf7+=) 14...Ba5 (14...Bc3 15.Bc3 Na4 16.Rab1 Nc3 17.dc3=) 15.a4 (15.Rab1 Rd8 16.Rfd1 a6=) 15...Kf7 (15...Bc3 16.Bc3 (worse is 16.dc3 Na4 17.Rab1 Nb2 18.Rb2 b6–/+) 16...Na4 17.Ra3=) 16.Bb5 Qd6 17.Ba3 (17.Rfd1 a6 18.Ba3 Qd4=) 17...f5 (17...Qd2 18.Nb1 Qd4 19.c3–/+) 18.Qh3 (18.Rfd1 Rd8=) 18...Nf6 (18...Qd2!? 19.Nb1 Qd4–/+ (19...Qc2?! 20.Rc1 Qb3 21.Bc5 Qh3 22.gh3=)) 19.Qe3 (19.Rfd1 a6 20.Be2 Qc6=) 19...b6 20.Rfd1 a6 21.Bf1 f4 (21...Ng4 22.Qe1+=) 22.Qe1= Qc6 23.Bc5 Bc3 (worse is 23...bc5 24.Be2=; worse is 23...Qc5 24.Ne4 Ne4 25.Qe4+=) 24.dc3 Qc5 25.c4 (25.Be2 e3 26.f3 Nd5–/+) 25...Rh8 (25...e3 26.fe3 Ng4 27.Rd2–+) 26.a5 (26.h3 f3–/+) 26...Ng4 (26...e3 27.fe3 Ng4 28.ab6 cb6 29.Ra6 Ne3 30.Ra7 Kf6 31.Kh1–+) 27.ab6 (27.Be2 e3 28.Bg4 Bg4–/+) 27...cb6 (27...e3!? 28.fe3 cb6 29.Ra6 Ne3 30.Ra7 Kf6 31.Kh1–+) 28.Be2–/+ f3 (28...Nh2 29.Ra6 Qe7 (29...Bc4 30.Bc4 Qc4 31.Rb6+–) 30.Rb6 Nf3 31.Bf3 Qh4–+) 29.gf3= Qe7 30.Bf1 ef3 31.Rd3? (31.Qe4 Nh2 32.Qe5 Nf1 33.Qf4 Kg8 34.Qf3 Rh4–+) 31...Nh2?? (better is 31...Qf6 32.Qe4 Nh2–+) 32.Qe5+= Rh5 (worse is 32...Nf1 33.Rf3 Kg8 34.Ra6+/–) 33.Qf4 Kg8 (33...Bf5 34.Re3 Qf6 35.Ra6 Nf1 36.Rf3 Nh2–+) 34.Ra6= Kh7 35.Ra8 (worse is 35.Rb6 Nf1 36.Rf3 Bd5–+) 35...Ng4 (35...Nf1 36.Rdd8 Rg5 37.Kh1 Ng3 38.fg3 Bc8–+) 36.Rf3+/– (36.Qf3?! Qh4 37.Bg2 Qh2 38.Kf1 Qe5=) 36...Ne5 (36...Nh2 37.Re3 Nf1 38.Qb8+/– (38.Kf1 Qb4 39.Re6 Qb1 40.Ke2 Qc2 41.Kf3 Qd1 42.Kg3 Qh1–/+)) 37.Rg3 (37.Re3 Bd7 38.Bg2 Qd6+–) 37...Qb7 Do you see the mate threat? 38.Bg2 Qd7 (38...Qe7 39.Re3 Qd6 40.Rd3+–) 39.Ra1 (39.Qf8 Qd1 40.Bf1 g5 41.Qh8 Kg6 42.Qe8 Kf5 43.Qf8 Bf7 44.Qc8 Kg6+/–) 39...Nc4+/– 40.Re1 Bf5?? (better is 40...b5+/–) 41.Qc4+– (41.Qc4 g5 42.Be4+–) 1–0. Katalymov,Boris N – Mnatsakanian,Eduard A, Spartak–ch Sochi, 1969.

7.Nf4 Qe8 8.Qh3 Pawn e6, live or die! 8...e5 (better is 8...Qc6!? 9.Be6 Nd7= (worse is 9...Qc2 10.Ba3+–)) 9.Ng6+= hg6 Exploits the pin (9...Qg6 Deflection from c8 10.Qc8) 10.Qh8 A pinning theme 10...Be6 11.Be2 (11.Be6 Qe6 12.0–0 Nc6+=) 11...Qc6 12.Nc3 Nd7 (12...e3 13.fe3 Qg2 14.Rf1=) 13.0–0 Nc5 14.a3 Bc3 15.Bc3 Rd8 (15...Na4!?=) 16.Rab1 b6 17.Bb5 Qa8 18.Bb4 Kf7 19.Qh4 (19.Qh7 Ne7 20.Qh4 Nf5+=) 19...Nh6 20.f4 (20.Bc5!? bc5 21.d3+=) 20...ef3= 21.Rf3 Nf5 22.Qe1 Nd4 23.Rf1 Nb5 (worse is 23...Nc2 24.Qe5 Nb4 25.ab4 Rd2 26.Qc7 Nd7 27.Qg3=) 24.Bc5 Qc6 25.Bb4 a5 (25...a5 26.a4 Nd4–/+) 0–1. van Geemen,Jan – Gilles,Rob, vrij corr, 1989.

7.Nf4 Qe8 8.Qh3 e5 9.Ng6+= Qg6 10.Qc8.

7.Nf4 Qe8 8.Qh3 Ne7 9.Ne6 Be6 10.Be6 =+.

4.Bc4 Nh6

5.Nc3 Bf5 6.Qh5 g6 7.Qe2 e3 8.de3+= e5 9.e4 Bg4= 10.f3 Bc8 11.Rd1+= Nd7 12.Qd2 Nf7 13.Bf7 Kf7= 14.Nge2 Bb4=+ 15.0–0 Nb6?? 16.Qd8+– (16...Rd8 17.Rd8+–) 1–0. de Visser,Arno – Schuehler,Ernst, corr SOK–92–90, 1992.

5.Nc3 Bg4 6.Qb1 e6 7.Ne4 Bb4 =+.

5.Nc3 Bg4 6.Be2 Bf5 7.f3 ef3 8.Bf3 –/+.

5.Nc3 Bg4 6.f3 ef3–/+ 7.Nf3 Na6 8.b5=+ Nc5 9.d3 Nf5 10.Ne5= fe5 11.Qg4 g6 12.0–0 Qd4+= 13.Qd4 ed4 14.Ne2 e5–/+ 15.Rf3 Na4 16.Bc1 Nc3 17.Nc3 dc3 18.Bg5 h6 19.Bf6+= Bg7?? 20.Rf5!+– Rf8 21.Re5 Kd7 22.Bg7 Rfe8 23.Re8 Re8 24.Bh6 Re2 25.Rc1 (25.Rc1 c6 26.Bg7+–; 25.Rf1 a6+–) 1–0. Brzoza,Miroslaw – Gronek, corr Poland 7980, 1980.

5.f3! e5 6.fe4 Bb4 7.Qh5 Kf8 8.Nf3 Nc6 9.0–0 Bg4 10.Qh4 Bf3 11.Rf3 Qe7.

5.f3 ef3 6.Nf3 e5 7.0–0 (7.a3 a5+=) 7...Bg4 (7...Bb4 8.d4 e4 9.Qe2–/+) 8.b5 (8.h3 Bf5 9.a3 Bd6+=) 8...Bd6 (8...Bc5 9.Kh1–/+) 9.Qe1+= Qe7 10.Nc3 (10.Bd5 c6 11.bc6 Bc5 12.Kh1 Nc6–/+) 10...c6 (10...Bc5 11.Kh1+=) 11.Ne4= Bf3 12.Rf3 White gets kings attack (12.Nd6? Qd6 13.Rf3 Qc5 14.d4 Qc4 15.de5 f5–+) 12...cb5 13.Bb5 Nd7 14.d4 Nf7 15.Rd1 Rd8 16.Nd6 Nd6 17.de5?? (better is 17.Bd7 Rd7 18.de5+=) 17...Nb5–+ 18.ef6 gf6 (18...Nf6 19.Re3 Ne4 20.Re4+–) 19.Bf6?? (19.Re3 Ne5 20.Rd8 Kd8 21.Qa5 Nc7 22.Qa7 Qe6–/+) 19...Nf6 20.Re3 Do you see the mate threat? 20...Qe3?? (20...Ng8 21.Re7 Ne7 22.Rd8 Kd8+–) 21.Qe3+/– Kf7 22.Qb3 Kg7 23.Rd8 Rd8 24.Qb5 Rd7 25.g4 h6 26.h4 a6 27.Qf5 Rf7 (27...Rd5 28.Qf3+–) 28.Qe5 Kg8 29.g5 hg5 30.hg5 The passed pawn on g5 will quickly become a dangerous weapon (30.Qg5? Rg7–+) 30...Nd7 31.Qd5 Nf8 32.Kg2 Kg7 33.Kg3 Ng6 34.c4 Nf4 35.Qe5 (35.Qe5 Kg8 36.c5+–) 1–0. Guziec,Krzysztof – Gruszczynski,Boleslaw, corr 1AMM Poland, 1991.

5.Qh5 g6 6.Qd5 e5 =+.

5.Qh5=+ g6 6.Qe2 Bf5 7.Bb5 c6 8.Bc4 –/+.

5.Qh5+= g6 6.Qe2 Bg7 (6...Bf5 7.Bb5 c6 8.Bc4–/+) 7.f3 (7.Qe4!? Nc6 8.b5=) 7...ef3+= 8.Nf3 Bg4 (8...Nc6 9.b5 Na5 10.Be6+=) 9.0–0= c6 (9...Nc6 10.b5 Nb4 11.d4=) 10.Nc3 (10.d4 Qd6=) 10...Qb6+= 11.Kh1 (11.Rf2 Qb4 12.Rb1 b5–/+) 11...Qb4 12.Rab1 e5 13.Ne4 Qe7 14.Qd3 Nf5 15.Ba3 Qc7 16.Be6 (16.Bd6 Qd7 17.a4–/+) 16...Nd7 (16...Ng3 17.hg3 Be6 18.Rb7 Qb7 19.Nd6 Kd7 20.Nb7 Kc8 21.Nd6 Kc7+–) 17.Nd6 Nd6 (17...Kd8 18.Rb7 (18.Nf5?! Bf5 19.Bf5 gf5=) 18...Ng3 19.hg3 Be6 20.Rc7 Kc7 21.Nb5 cb5 22.Qd6 Kd8 23.Qe7 Kc7 24.Bd6 (worse is 24.Qg7 Ba2 25.Bc5 Bd5+–) 24...Kb7 25.Qe6+– (25.Qg7 Rag8 26.Qe7 Re8=)) 18.Bd6 e4 19.Bc7 Threatening mate: Qxd7 19...ed3 20.Bg4 f5 21.Rbe1 Kf7 (better is 21...Kf8+=) 22.Ng5+/– Kg8 23.Bd1 Rc8 24.Bd6 Bf6 (24...Bf8 25.Bf8 Rf8 26.Re7+–) 25.Ne6+– dc2 (25...Kf7 26.cd3 Be7 27.Be7 Ke7 28.g4+–) 26.Bc2 h5 (26...Bh4 27.Re2 c5 28.Ba4+–) 27.Nf4 (better is 27.Bb3 Kh7 28.d4+–) 27...Kh7? (better is 27...Rh6+–) 28.Ng6! Kg6 Decoy to g6 29.Bf5 Theme: Double Attack 29...Kg7 30.Bd7 Rcd8 31.Be7 Be7 32.Re7 Kh6 33.Rf6 Kg5 34.Rd6 (34.Rf5 Kg6 35.Rfe5 Rhf8 36.Be8 Rfe8 37.Re8 Rd2+–) 34...h4 (34...Rdf8 35.Re5 Kf4 36.Ra5+–) 35.Kg1 (35.Re5 Kf4 36.Ra5 b5+–) 35...Rhf8 (35...Rhg8 36.Rde6+–) 36.Re5 (36.Re5 Kf4 37.Rh5+–) 1–0. Pilczuk,Andrzej – Gruszczynski,Boleslaw, corr 1AMM Poland, 1991.

5.Qh5=+ g6 6.Qh4 Nf5 (6...Bg4 7.Nc3 Qd4 8.Bd5=+) 7.Qe4= Nd6 (7...e5 8.f4 Nd6 9.Qe2 Nc4 10.Qc4 ef4 11.Nf3=+) 8.Qe2 Nc4 9.Bf6 Rg8?? (better is 9...Qd5!? 10.Bh8 Qg2=) 10.Qc4+/– ef6 11.Qg8 Qe7 12.Kf1 (better is 12.Kd1 Be6 13.Qh8+=) 12...Be6–/+ 13.Qh8 Nc6 14.Nc3 0–0–0 15.Re1 Bh6 16.Re6 Qe6 (16...Rh8 17.Re7 Ne7 18.Nf3+/–) 17.Qh7 Bd2 18.Nce2 Bb4 (18...Bb4 19.g4 Qg4–+; 18...Nb4?! 19.Qg6 Rg8 20.Qh7 Qa2 21.g3 Nc2 22.Qf5 Kb8 23.Kg2–/+) 0–1. Bankis – Banos, New York, 1959.

3.e4 e5

(--> 1.b4 e5 2.Bb2 f6 3.e4 d5).

4.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e4).

3.e4 e6

4.Bb5 Bd7 5.Bd7 Qd7 6.Qh5 g6 =.

4.Nc3!? +=.

4.ed5 Bb4 5.a3 (5.Qg4 Qe7 6.Be2 Bd7=) 5...Bd6 6.Bd3 (6.Bb5 Bd7 7.de6 Bc6+/–) 6...a6 (6...Bd7 7.Qh5 Ke7 8.Nf3+=) 7.Qh5+= Ke7 8.de6 Be6 9.Bh7 (better is 9.Nf3+=) 9...g6? (better is 9...Kd7=) 10.Qg6+– Nd7?? (better is 10...Qf8+–) 11.Qg7 Ke8 (11...Bf7 12.Qh8 Bd5+–) 12.Bg6 (12...Bf7 13.Qf7#) 1–0. Wall,Bill – Thinker, internet, 2003.

4.ed5 Qd5 5.a3 (5.Nc3 Qe5 6.Be2 Kf7 7.d4 Qd6 8.a3 Nd7 9.Bd3 Ne7+/–) 5...Bd7 (5...Nh6!?+/– 6.Nc3 Qg5 7.Nh3 Qg6 8.Nf4 Qf5 9.g3 Nc6+=; 5...Qe4 6.Ne2 a5 (6...Qh4 7.Nd4 Nh6 8.Qe2 Kf7 9.g3 Qg4+=; 6...Bd6 7.Nbc3 Qg6 8.Ng3 Ne7 9.Bd3 Qh6+=; 6...Kf7 7.Nbc3 Qh4 8.g3 Qh6 9.Bg2 a5+=) 7.Nbc3 Qh4 8.b5 Bd6 9.g3 Qg5+=) 6.Nc3+– Qe5 (6...Qg5 7.d4 Nc6 8.b5 Na5 9.Bc1 Qg6+/–) 7.Be2 (7.Qe2 Qf5 8.Nb5 Qc2 9.Bc3 Na6=) 7...Qg5 (7...Nc6 A) 8.Nf3 Qf5 (8...Qf4 9.d4 0–0–0+/–) 9.0–0+– (9.d4 Nce7+/–) 9...0–0–0+/–; B) 8.Nb5 Qb2 9.Rb1 Qa2+/–/14; 7...Bc6 8.d4 Qd6 9.Nf3 Kf7+–) 8.Ne4 (8.d4 Bc6 (8...Nc6 9.Bc1+– Qh4+–) 9.Bh5 g6+/–) 8...Qg2?? (better is 8...Qh6 A) 9.Bh5 Kd8+/– 1.18 (9...g6+/–); B) 9.d3 Kd8+/–; 8...Qf5 9.Bd3 Qd5+–) 9.Bf3 Qg6 (9...Qh1 10.Bh1 Nc6 11.Qh5 g6 12.Qe2+–) 10.Bh5 Ne7 11.Bg6 hg6 12.Nf3 Bc6 (12...Nf5 13.Rg1+–) 13.Qe2 Nd5 14.b5 Nf4 (14...Bd7 15.Nc3 c6 16.bc6 bc6 17.0–0–0+–) 15.bc6 Ne2 (15...Nc6 16.Qc4 Nd5+–) 16.cb7 (16.Ke2?! Nc6 17.Rhg1 g5+–) 16...Nd4 17.Nd4 (17.Nd4 Be7 18.ba8Q+–) 1–0. pierre – tattuso, internet, 2010.

4.Qh5 g6= 5.Qh4 Be7 (5...Nc6 6.b5 Nb4 7.Na3 de4 8.Qe4=) 6.ed5+= ed5 7.a3 (7.Nc3 Nc6 8.0–0–0 f5+=) 7...h5 (better is 7...f5!? 8.Qf4 Nf6=) 8.Bd3+= Rh6 (8...g5 9.Qg3 Nh6 10.Nc3+=) 9.Qg3 (9.Nc3 Nc6+/–) 9...a6 (better is 9...Kf8!?+=) 10.Bg6 Rg6?? (better is 10...Kf8 11.Bd3 Nc6+–) 11.Qg6 Kd7 (11...Kf8 12.Ne2+–) 12.Nf3 Bd6 (12...c6 13.0–0+–) 13.0–0 c6 (13...Qf8 14.Nc3 c6 15.Qh5+–) 14.Re1 (14.Qg7 Be7 15.Re1 Qf8 16.Re7 Qe7 17.Qg8 Kc7+–) 14...a5 (14...Kc7 15.Re8 Ne7 16.Qh5+–) 15.Qf7 Be7 16.Nd4 (better is 16.Bd4 Qf8 17.Qh5+–) 16...Qb6 (16...Qe8 17.Qg7 Qf8+–) 17.Nf5 Kc7 18.Ne7 Ne7 19.Re7 Nd7 20.Bf6 (better is 20.Qf6 Kb8 21.Qf4 Ka7+–) 20...Qb5 21.Be5 Kb6 22.Rd7 c5 23.Bc7 (23.Rd6 Ka7 24.Nc3 Qd7 25.Rd7 a4 26.Rd5 h4 27.Qc7 cb4 28.Ra5) 23...Ka7 24.Rd6 Be6 25.Re6 cb4 (25...Rh8 26.Nc3 Qd7 27.Qd7 Ka8 28.Qb5 ab4 29.ab4) 26.ab4 Qb4 (26...a4 27.Bb6 Ka6 28.Bd4 Qc6 29.Nc3 b6 30.Rc6 a3 31.Ra3) 27.Ra5 (27.Ba5 Qb1 28.Rb1 Rb8 29.Bd8 Rd8 30.Qb7) 27...Qa5 28.Ba5 1–0. mtr – BMC, internet, 2001.

3.e4 Be6

4.ed5 Qd5 5.Nc3 Qe5 6.Be2 g6 (better is 6...Qd6!?+/–) 7.Nb5+– Qf4? (better is 7...Qb2 8.Nc7 Kf7 9.Na8 Ba2+–) 8.g3 Qb4 9.Nc7 Kf7 10.Bc3 (10.Na8?! Qb2 11.Rb1 Qa2+–; 10.Ne6?! Ke6 11.Rb1 Qe4+–) 10...Qe4 11.Nf3 (11.Na8?? Qh1 12.Nc7 Qg1 13.Bf1 Bh3–+) 11...Bc4 (11...b5+–) 12.Na8 Nh6 (12...Be2 13.Qe2 Qe2 14.Ke2 e5+–) 13.d3 (13...Qc6 14.dc4+–) 1–0. Wall,Bill – Renegade, internet, 2004.

4.ed5 Bd5 5.c4 (5.Nc3!?+/–) 5...Bf7= 6.Nf3 Nc6 (better is 6...e5!? 7.b5 Nh6=) 7.b5+/– Ne5 (7...Nb4 8.Qb3 e5 9.a3+/–) 8.Ne5+– fe5 9.Be5 (9.Qf3 Qc8 10.Be5 Nf6+–) 9...c6 (9...Nf6 10.Qf3 Nd7 11.Bg3+/–) 10.Nc3 e6 (10...Nf6 11.bc6 bc6 12.Qf3+–) 11.Be2 (better is 11.bc6 bc6 12.Qf3+–) 11...Bd6?? (11...Nf6 12.Qa4 Rc8+–) 12.Bd6 (better is 12.Bg7 Nh6 13.Bh8+–) 12...Qd6+/– 13.0–0 (13.bc6 bc6 14.Ne4 Qd4+/–) 13...Nf6 14.a4 (14.Bf3 0–0+/–) 14...0–0 15.Bf3 (better is 15.Qb3+/–) 15...Bh5?? (better is 15...Rad8+=) 16.Bh5+– g6 (16...Rad8 17.Bg4+–) 17.Be2 (17.Bf3 Rad8 18.bc6 bc6+–) 17...Qe5 (17...Qd4 18.Qc2+–) 18.Qc2 (18.d4 Qd6+–) 18...Rad8 19.Bf3 (19.bc6 bc6 20.Rab1 Qd4+–) 19...Rd4 (19...Qd4 20.bc6 bc6 21.Bc6 Qc4 22.Bf3+–) 20.Rfe1 (better is 20.d3+–) 20...Nh5 (20...Qf5 21.Qb2 Qf4+–) 21.Re5 Nf4 22.Ne2 Rd6 23.Nf4 Rf4 24.bc6 bc6 25.Rae1 Rd8 26.Bc6 Rff8 27.Re6 Kf7 (27...Rf3 28.gf3 Kf8 29.Qb2 Kg8 30.Re7 Rd4 31.Qd4 a6 32.Qg7) 28.Bd5 (28.Re7 Kg8 29.Qc3 Rf7 30.Re8 Rf8 31.R1e7 Rd4 32.Qd4 Re8 33.Qg7) 28...Kg8 (28...Kg7 29.Qc3 Rf6 30.Qf6 Kh6 31.Qf4 Kg7 32.Re7 Kh8 33.Qf6) 29.Rg6 Kh8 30.Qc3 Rf6 31.Qf6 1–0. Trkn – ENTER, itsyourturn.com, 2000.

3.Nf3 Nc6

4.b5 Na5!? =.

4.b5 Ne5 5.Ne5+/– fe5 6.Be5 e6 (6...Nh6 7.d4+/–) 7.e3 Nf6 8.d4 Bd6 9.Bd3 Bd7 10.Nd2 Qe7 11.0–0 0–0 12.f4 c5 13.c4 Rac8 14.Rb1 b6 15.a4 Rc7 16.Qe2 Be8 17.a5 ba5 18.Ra1 Be5 (18...cd4 19.ed4 Bh5 20.Qe3+–) 19.de5 Nd7 20.Ra5 Nb6 21.e4 d4 (21...dc4 22.Nc4 Qd8 23.Qc2+–) 22.Qg4 h6 (22...Rd7 23.Ra6+–) 23.Qg3 Bh5 24.Ra6 Nd7 25.Qh3 Bf7 26.Rfa1 Nb8 27.Rd6 Rd8 28.Rd8 Qd8 29.Qg3 a6 30.f5 Qg5 (30...ab5 31.f6 Be8 32.cb5+–) 31.Qg5 hg5 32.Ra5 (32.ba6 Ra7 33.Ra5 Na6+–) 32...ab5 33.cb5 The passed pawn on b5 will quickly become a dangerous weapon (33.Rb5?! Nd7 34.Nf3 Kf8+/–) 33...ef5 (33...Kf8 34.Ra8 Rc8 35.Nc4+–) 34.ef5 c4 35.b6 Rb7 36.Nc4 Bc4 37.Bc4 Kf8 38.Ra7 (38.Ra7 Rb6 39.Rf7 Ke8 40.Rg7+–) 1–0. Vetter,Udo – Ripke,Thomas, DESC, 2004.

4.d4 Nb4 5.Bc3 e5 6.de5 f5 7.Qd2 a5 8.Bb4 (8.e3!?+=) 8...ab4+= 9.a3? (9.e3!?+=) 9...c6 10.c3 (better is 10.a4–/+) 10...b3 (better is 10...ba3 11.e3 Bc5–+) 11.Qb2 Qb6 12.e3 Bc5 13.Nbd2 d4?? (better is 13...Ne7=) 14.ed4+– Bf8 15.Nc4 (15.Nc4 Qd8 16.Qb3+–) 1–0. Mark72 – wee harv, ChessWorld.net, 2012.

3.Nf3 e5

4.a3 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.Nf3).

4.a3 c5 5.bc5 Bc5 6.e3 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 c5 5.bc5 Bc5 6.Nf3).

4.a3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 f6).

4.a3 Bd6 5.e3 c6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 c6 5.Nf3 Bd6).

4.a3 Bf5 5.e3 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Bf5 5.Nf3).

4.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.Nf3).

4.b5 c6 5.e3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 c6 5.Nf3).

4.b5 Be6 5.e3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3).

4.d3 Bb4–/+ 5.Bc3 Bc5 6.e3 Bg4 7.Be2 h6 8.0–0 Nc6 9.d4 Bb4 10.Bb4+= e4 11.Nfd2 Be2+= 12.Qe2 Nb4 13.Qb5 Nc6 14.Qb7 Nge7 15.Qb5 0–0 16.c4+= a6 17.Qc5 Qd6 18.cd5 Qc5+= 19.dc5 Nd5 20.Ne4 Rae8 21.Nbd2 f5 22.Ng3 f4 (22...f4 23.ef4 Nf4+=). wwidener (1830) – bienopia (2100), net–chess.com, 2009.

4.e3 (--> 1.b4 e5 2.Bb2 f6 3.e3 d5 4.Nf3).

4.e4 de4 5.Ne5 fe5 6.Be5?? Qg5 7.Bg3 Bb4 8.c3 Bd6 9.Qa4 Bd7 10.Qe4 Qe7 11.Qe7 Ne7 12.Bd6 cd6 13.Be2 0–0 14.0–0 Nbc6 15.d4 Nd5 16.c4? Ndb4 17.d5 Nd4 18.Nc3 Ne2 19.Ne2 Rac8 20.Nc3 Rc4 21.Ne2 Nd5 22.Rad1 Bc6 23.Ng3 Rc2 24.Rb1 Ra2 25.Nf5 Nc3 26.Rbc1 Ne2 27.Kh1 Nc1 28.Rc1 Rf5 29.Kg1 Rff2 (30.Rd1 Rg2 31.Kf1 Bb5 32.Rd3 Bd3 33.Ke1 Ra1#) 0–1. badboy1221 – jakesh, Live Game Caissa's Web, 2006.

3.f4 Nc6

4.a3 d4 5.Nf3 a5 6.b5+= Na7 7.Nd4 c5 8.bc6+/– bc6 9.e3 c5 10.Nb5 Nb5 11.Bb5 Bd7 12.Qe2 Rb8 13.a4 e5 14.0–0 Ne7? 15.fe5 fe5 16.Be5 Rb6 17.Qc4 Nc6 18.Qf7# 1–0. euforia – eric2, internet, 2007.

4.a3 e5 5.e3 Bd6 6.Bb5 =.

4.b5 Na5 5.Bd4 =.

4.b5 Nb8 5.Nf3 a6 6.a4 (6.e3 Bg4=) 6...ab5 7.ab5 Ra1 8.Ba1 c6 (8...Bf5 9.Nd4 Nh6 10.e3+=) 9.e3+= Nd7 10.Be2 Nh6 11.0–0 e6 12.c4 (12.Nd4 Nb8+=) 12...Be7 (12...dc4 13.bc6 bc6 14.Bc4+=) 13.Nc3 (13.Nd4 Nb8+=) 13...0–0 14.Qc2 Nc5 (14...Nb6 15.cd5 cd5 16.Bd3+=) 15.Bb2 (15.d4 Nf5 16.Kf2 Nh6 17.dc5 Ng4 18.Kg1 Ne3=) 15...Bd7 (better is 15...Nf5!?=) 16.d4+/– Ne4 17.Ne4 de4 18.Qe4 Qc7 (18...cb5 19.cb5 Nf5 20.Bd3+/–) 19.Qb1 (19.bc6 f5 20.Qd3 Bc6+–) 19...Nf5 20.Qd3 cb5 21.cb5 Bd6 (21...Qb6 22.Rc1+/–) 22.e4 Nh6 23.g3 (23.e5 Be7+–) 23...f5 (23...Qb6 24.Rc1+/–) 24.e5 Be7 25.Rc1 (25.Ra1 Rc8+–) 25...Qb6 26.Kg2 Ng4 27.h3 Nh6 28.Qb3 (28.d5 ed5 29.Qd5 Be6+–) 28...Ra8 29.d5 ed5 30.Qd5 Be6 31.Qd4 Qd4 32.Nd4 Ra2? (32...Bd5 33.Bf3 Be4 34.Re1+–) 33.Rc2 (better is 33.Ne6!? Rb2 34.Kf3 Rb3 35.Kf2 Kf7+–) 33...Bd5 34.Kf2 1–0. Fredek (2090) – Kiran_aashu (1625), Freundschaftspartie, 5m + 0s, 2005.

4.b5 Nb8 5.Nf3 Bd7 6.e3 e6 7.Be2 Bc5 (7...a6 8.a4=) 8.a4 a6 9.0–0 Ne7 10.c4 ab5 11.ab5 Ra1 12.Ba1 0–0 (12...Bd6 13.Qb3+=) 13.d4+/– Bb4 14.Qb3 Ba5 15.c5 b6 16.c6 Bc8 17.Bb2 Nf5 18.Ba3 Re8 19.g4 (19.Nbd2 e5 20.de5 fe5 21.fe5 Bd2 22.Nd2 Re5+/–) 19...Nd6 20.Nc3 (20.Bd3 Rf8+=) 20...Qe7 (20...Bc3 21.Qc3 Ne4 22.Qe1+=) 21.Bd3 Qf7 (21...f5 22.g5+/–) 22.Kh1 (22.Bd6 cd6 23.Qc2+/–) 22...f5 (22...Bc3 23.Qc3 Ne4 24.Qc2+/–) 23.g5 (better is 23.Bd6!? Bc3 24.Ne5+– (24.Qc3?! cd6 25.Ng5 Qc7+/–)) 23...Ne4+= 24.Be4 de4 (24...fe4 25.Ne5 Qh5 26.g6+=) 25.Ne5+/– Qh5 26.Bb4 Bb4 27.Qb4 Rd8? (27...Qh3 28.Re1+=) 28.Qb3 (28.Qe7 Rf8 29.Qc7+–) 28...Qe8? (better is 28...Qh3 29.Re1 Qh4+=) 29.Ra1 Nd7 30.cd7 Bd7 31.Nd7 (31.Ra7!? Rc8+–) 31...Qd7 32.Qc4 Qf7 (32...Qd6 33.Ra7 Rc8 34.d5+–) 33.Ra7 Rc8 34.Kg2 (34.Qc6 Kh8 35.Kg1 Kg8+–) 34...h6 (34...Kh8 35.Kg1+–) 35.h4 (35.gh6 gh6 36.Qc6 Qg6 37.Kf1 Kh8+–) 35...hg5 (35...Kh7 36.Kf1+–) 36.hg5 Qh5 (36...Kh7 37.Kf2+–) 37.Qe2 (37.Qe6 Qf7 38.Qc8 Qf8 39.Qc7+–) 37...Qe8 38.Qa2 (better is 38.Na4+–) 38...Qh5?? (38...c6+–) 39.Qe2 (better is 39.Qe6 Qf7 40.Qc8 Kh7 41.Rc7+–) 39...Qe8 40.Kg3 Qg6 (40...Kf8 41.Na4+–) 41.Kh4 (41.Qc4 Qf7+–) 41...Qh7 (41...Qe8 42.Qh5 g6 43.Qh6+–) 42.Qh5 Qh5 43.Kh5 Kh7 (43...Kf7 44.Kh4+–) 44.g6 (44.g6 Kg8 45.Na4+–) 1–0. Fredek (2090) – Guest540699, Freundschaftspartie, 5m + 0s, 2005.

4.b5 Nb8 5.Nf3 e6 6.e3 =.

4.b5 Nb8 5.Nf3 Bg4 6.Nc3 =.

3.f4 Qd6

4.a3 Qf4–/+ 5.g3 Qd6 6.Bg2 e5 7.Nf3 Be6 8.d3 (8.0–0 a5 9.c3 Ne7–/+) 8...Nd7 9.Nbd2 Nh6 10.e4 c6 (10...0–0–0 11.ed5 Bd5 12.c4–/+) 11.0–0 Be7 12.Qe2 (12.ed5 Bd5 (worse is 12...Qd5 13.Ne5 Qd6 14.Nec4+=) 13.c4 Be6+=) 12...0–0 (12...d4 13.Nc4 Qc7 14.c3–/+) 13.ed5 cd5 (13...Qd5 14.Ne5 Qd6 15.Nec4+–) 14.Rfe1 Rac8 15.c4 b6 (15...Nf5 16.Rac1–/+) 16.Rad1 (16.Nd4 Bf7+=) 16...Rfd8 (16...a5 17.Nd4 Bg4 18.Nb5–/+) 17.Nd4+= Bg4 (17...ed4 Exploits the pin 18.Qe6) 18.Nb5 Be2 (better is 18...Qe6!? 19.Bd5 Qd5 20.cd5 Be2 21.Re2 Rc2+=) 19.Nd6= Bd6 20.Bd5 Kh8 (20...Kf8 21.Re2 Nf5 22.g4+=) 21.Re2+= Nf8 (21...Nf5 22.g4 Ne7 23.Be4+=) 22.Nf3 (22.d4 ed4 23.Bd4 Nf5+/–) 22...Bb8 (22...b5 23.Rc1+/–) 23.d4 ed4 24.Bd4 Nf5 25.Rde1 (25.Kf2 b5 26.Bb7 Rc7+=) 25...Nd4 26.Nd4 Ng6 (26...Be5 27.Nc6 Bc3 28.Nd8 Rd8 29.Re8 Re8 30.Re8+–) 27.Bb7 (better is 27.Nc6 Rf8 28.Ne7 Ne7 29.Re7+/–) 27...Be5 28.Nc6 Rc6 29.Bc6 Rd3 30.Be4 (30.a4 Bd4 31.Kf1 Ne5+–) 30...Rd8 (30...Bd4 31.Kg2 Ra3 32.Bg6 hg6 33.Re8 Kh7 34.R1e4+–) 31.Bg6 (31.b5 Bd4 32.Kg2 Ne5+–) 31...hg6 32.Rc2 (32.b5 Rd3 33.a4 Ra3+–) 32...Rc8 (32...Bd4 33.Kg2 Be5 34.c5+–) 33.Re4 Kg8 34.c5 Rc6 35.b5 (better is 35.Kf2+–) 35...Re6?? (better is 35...Rc5 36.Rc5 bc5+/–) 36.c6+– Re8 37.Rd2 (37.Rd2 Kf7 38.Rd7 Ke6 39.Ra7+–) 1–0. Sternik,Ryszard – Gruszczynski,Boleslaw, corr 1AMM Poland, 1991.

4.Nc3!? =+.

4.e3 Qb4 5.Ba3 Qa5 6.c4 Be6 7.Qb3 Nd7 8.Bb4 (8.Nf3 dc4 9.Bc4 Bc4 10.Qc4 Rd8=+) 8...dc4 9.Bc4 (< 9.Ba5 cb3 10.ab3 b6–+) 9...Bc4 10.Qc4 Qb6 11.Nf3 c5 12.Bc3 Qc6 13.a4 e6 14.0–0 Ne7 15.Qe2 Ng6 16.d4 Bd6 17.Rc1 0–0 18.Nbd2 Rac8 19.Qc4 Kh8 20.g3 Nb6 21.Qb3 Nd5 22.Bb2 b6 23.e4 Nb4 24.Nc4 (24.Ba3 Qd7=+) 24...Bf4 (24...Rfd8 25.Nd6 Qd6 26.a5–/+) 25.gf4=+ Nf4 26.Ncd2 (26.Qe3 Nfd3 27.Rc3 Nb2 28.Nb2 cd4 29.Rc6 de3 30.Re6 Kg8=+) 26...Nbd3 27.Rc2 Qe8 (27...Nb2?! 28.Qb2 Qd6 29.dc5 Rc5 30.Rf1=+) 28.Nf1 (28.Ne1 Nb2 29.Qb2 cd4 30.Rc8 Qc8–+) 28...Qh5 (28...Nb2?! 29.Rb2 e5 30.dc5 Rc5 31.Ng3=+) 29.Ne1 c4! (< 29...Nb2 30.Ng3 Qg4 31.Qb2 cd4 32.a5–+) 30.Qa3 (30.Qc4 Ne1) 30...Ne2 31.Re2 Qe2 32.Nd3 cd3 (32...Qd3?! 33.Qd3 cd3 34.Ne3–+) 33.Bc3 Qe4 34.Nd2 Qe3 (34...Qe3 35.Kh1 Rf7–+) 0–1. Kuehn,Peter – Essegern,Kurt, corr DDR–ch12 sf07, 1983.

4.e3 Qb4 5.Bc3 Qd6 6.Nf3 =+.

4.e3 Bf5 5.Nf3 (5.Nc3 e6=) 5...Bg4 (5...Qb4!? 6.Ba3 Qb6+=) 6.a3= Nd7 7.c4 c6 (7...e5 8.h3 Bh5 9.c5=) 8.cd5+= cd5 9.Nc3 a6 10.Be2 e5 11.fe5 (11.Rc1 e4 12.Nd4 Be2 13.Qe2 Nb6+/–) 11...fe5= 12.0–0 Ngf6 13.Nh4 Be6 (13...Be2 14.Qe2 g6 15.Rf2=) 14.Nf5 Bf5 15.Rf5 g6 16.Rf1 Bh6 17.Qb3 Rf8 18.Na4 Ne4 19.Qd3 Ke7 (19...Rc8 20.Bf3 Rc6 21.Be4 de4 22.Rf8 (worse is 22.Qe4 Rf1 23.Rf1 Qd2–/+) 22...Bf8 23.Qe4 Qd2 24.Be5=) 20.Bf3 (20.Nc3 Nc3 21.Bc3 Rac8+=) 20...Ndf6 (20...Nef6 21.Qb3+=) 21.Nc5 (21.Rac1+/–) 21...Ng5 (better is 21...b6!? 22.Na6 Nd2 23.Qd2 Ra6+=) 22.Nb7+– Nf3 Black gets strong initiative 23.gf3 Qc7 24.Na5 Rfc8 25.Rac1 Qd6 26.Nb7 Qb6 27.Rc8 (better is 27.Nc5!? Qd6 28.f4+–) 27...Rc8+/– 28.Nc5 Rc5 29.bc5 The passed pawn on c5 will quickly become a dangerous weapon 29...Qb2 30.Rb1 Qa2? (30...e4 31.fe4 Qe5 32.Rb7 Kf8 33.ed5 Qg5 34.Kf1 Qh5 35.Rb8 Kg7+/–) 31.Rb7 Ke6 32.e4 (better is 32.Qa6 Kf5 33.Rf7+–) 32...Qc4+= 33.ed5 Qd5 34.Rb6 (34.Qa6 Kf5 35.c6 Bd2+=) 34...Ke7+= 35.Qd5 Nd5 36.Rd6 Nc7 37.Kf2 Bf4 38.h3 a5 39.Rd3 Nb5 40.c6 Nd4 41.Rc3 Kd8 (41...Bd2? 42.c7 Bc3 43.c8Q+–) 42.Rc5 Nb3 43.Rb5 a4 44.Rb4 Kc7 45.Ra4 Kc6 46.d3 (46.Ra7 Nd2 47.Rh7 g5–/+) 46...Kd5 47.Ra7 h5 48.Rd7 Kc6 49.Rh7 (49.Rd8 g5–/+) 49...Nc1–+ 50.h4 Nd3 51.Ke2 Nc1 (51...Nc5 52.Kf1–+) 52.Kf2 Kd5 53.Rg7 Kd4 (53...Bh6 54.Rg8–/+) 54.Rg6 Be3 55.Kf1 Bd2 (55...Nd3 56.Rg8–/+) 56.a4 (56.Rf6 Ke3 57.Rf5 Nd3+=) 56...Ke3 (56...Nd3 57.Rg2 Bc3 58.Rg3–/+) 57.Rg5+= Nd3 58.Rh5 (58.f4 Ke4 (58...Kf4? 59.Ke2+–) 59.Rh5 Nf4+= (59...Kf4? 60.Ke2+–; worse is 59...Bf4 60.a5=)) 58...Kf3–/+ 59.Rh8 (59.Rf5!? Kg4 60.Rf8–/+) 59...e4–+ 60.h5 e3?? (better is 60...Bf4 61.Rd8 Nc1–+) ½–½. Olexa,Vilem – Hofman,Vilem, CSR–ch Bratislava, 1959.

3.f4 e6

4.a3!? =.

4.b5 Bc5 5.Nf3 Bd7 6.e3 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 c6 10.Nc3 Ne7 11.Be2 0–0 12.0–0 Qc7 13.Qb1 (13.Rf2 Nf5 14.Bd3 Nd6=) 13...cb5 (13...Qf4! 14.Qa2 cb5 15.Nb5 Bb5 16.Bb5 Nbc6–/+) 14.Nb5 Qc6 15.d4 Bb6 16.Nd2 Ng6 17.c4 Ba5 18.Nc3 Nh4 (18...Rc8!?+=) 19.cd5+/– ed5 20.Nd5! (20.Nd5 Kh8 21.Nb3+/–) 1–0. finnforce – matty722, ChessWorld.net, 2012.

4.e3 Bb4–/+ 5.c4 c6 6.Bd3 Qe7 7.Nc3 f5 (7...dc4 8.Qh5 Qf7 9.Qf7 Kf7 10.Bc4–/+) 8.Nce2 (8.Nf3 Nf6=+) 8...Nf6 9.Nf3 0–0 10.0–0 Ne4 11.Be4 (11.a3 Bd6–/+) 11...de4 (11...dc4? 12.Bc2+–) 12.Ne5 Nd7 13.Nd4 Ne5 14.fe5 a6 15.Qb3 (better is 15.a3!? Ba5 16.Nb3–/+) 15...c5 16.Ne2 Bd2 17.Rad1 Ba5 18.Nf4 b6 (18...b5!? 19.cb5 ab5 20.Rf2–+) 19.Rd6–/+ Bd7 20.Rfd1 Rad8 21.Qc2 Bc8 22.Qe2 (22.Bc3 Bc3 23.Qc3 Rd6 24.ed6 Qd7–/+) 22...Rd6 (22...Rd7 23.Rd7 Bd7 24.Rd6–+) 23.Rd6 (23.ed6!? Qd8 24.Qc2–+) 23...Rd8 24.Qd1 Rd6 (better is 24...b5!?–+) 25.ed6–/+ Qf7 26.Be5 (26.Nh5 e5!–/+) 26...Bd7 (26...g6 27.Ba1–+) 27.Qc2 (27.Nh5!?–/+) 27...g5–+ 28.Nh3 Qh5 29.Nf2 Kf7 30.Nh3 b5 31.cb5 ab5 32.Qc5?? (better is 32.Nf2 Bb6 33.a4 ba4 34.Qb2–+) 32...Qd1 33.Kf2 Be1 (33...Be1 34.Kg1 Bg3#; 33...Qe1#) 0–1. Djakov,Joao – Sabau,Danut (1930), internet Section, 2004.

3.f4 Bf5

4.e3 Qd7 5.Nf3 Nc6 6.a3 0–0–0 7.Be2 Be4 8.h3 Qf5 9.Nd4 Nd4= 10.Bg4 Nc2 11.Kf2 Na1 12.d3 Qg4 13.Qg4+= Kb8? 14.de4+– Nb3 15.Qd1 g5 16.fg5 f5 17.ed5 e6 18.Qb3 ed5 19.Bh8 h6 20.gh6 Bh6 21.Be5 Rd7 22.Rd1 Ne7 23.Nc3 b6 24.Nd5 Nd5 25.Rd5 Rd5 26.Qd5 Bg5 27.Qg8 Kb7+– 28.Qg5 Kb8 29.b5 a6 30.Qd8 Ka7 31.Qc7 Ka8 32.Qb8# 1–0. spblex – shirohiretabira (2015), net–chess.com, 2009.

4.e3 e6 5.a3 =.

4.e3 h5 5.Nf3 Qd6 (5...e6 6.a3=) 6.b5 (6.a3 Nd7+=) 6...Nd7= 7.a4 (7.c4 dc4 8.Ba3 Qd5=) 7...a6 (7...e5!?=) 8.Ba3+/– Qe6? (better is 8...Qb6+/–) 9.Nd4+– Qe4 10.Nc3 (10.Nf5?! Qf5 11.Bd3 Qg4 12.Qg4 hg4 13.Bg6 Kd8+/–) 10...Bg4 11.Qb1 Qg6 (11...Qh7 12.Nd5 Rc8 13.ba6+–) 12.Nd5 Rb8 13.Bd3 Qf7 14.Qb3 e6 (14...Nh6 15.Nc7 Kd8 16.Qf7 Nf7 17.Nce6 Be6 18.Ne6 Ke8 19.ba6 ba6 20.Ba6 h4+–) 15.Nc7 Kd8 16.Nde6 (16.Nde6 Kc8 17.Qc3+–; better is 16.Nce6!? Be6 17.Ne6 Qe6 18.Qe6 Nh6+–) 1–0. Roczniak,Jan – Weglarz, Poland (year?).

4.Nf3 Qd6 5.Nc3 =+.

4.Nf3 Nd7 5.d3 c6 6.a3 Qc7 7.e3 e5 8.fe5 Ne5 9.Be2 0–0–0 10.Ne5= fe5 11.0–0 Bg6 12.Bg4 Kb8 13.Nd2 Bd6=+ 14.Nf3 Nf6 15.Bh3 e4–/+ 16.Nd4 Bh2 17.Kh1 Bf7 (17...Bf7 18.b5 c5–/+; 17...Nh5 18.Rf2–/+) 0–1. juanpacio – valentin25, internet, 2008.

2...h6

3.d4 Nf6 4.e3 a6 5.Qf3 Bf5?? 6.Qf5+– e6 7.Qd3 Bb4 8.Bc3 Bd6 9.a4 Nc6 10.Nf3 0–0 11.Nh4 Ne4+/– 12.g3 a5 13.Bg2 Nc3 14.Qc3?? Bb4–+ 0–1. 488 – Pamella, ChessWorld.net, 2011.

3.e3 a6 (--> 2.Bb2 a6 3.e3 h6).

3.e3 Bf5 4.Nf3 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.Nf3 h6).

3.e3 f6? 4.a3 (better is 4.Qh5!? g6 5.Qg6 Kd7 6.c4+–) 4...e5 5.Nf3 (5.Qh5 Ke7+=) 5...a6 6.c4 dc4 7.Bc4 Nc6?? (7...Ne7 8.d4 e4 9.Nfd2+/–) 8.d3?? (better is 8.Qb3 Qd7 9.Bg8+–) 8...Bg4 9.Nbd2 Qd7 10.0–0 0–0–0 (10...b5!? 11.Bg8 Rg8+=) 11.b5+/– ab5 12.Bb5 Nge7 13.Qa4 Nd5?? (better is 13...Kb8+/–) 14.Qa8+– (14.Qa8 Nb8 15.Bd7 Bd7 16.Rfc1+–) 1–0. Fournier,Frederic – jhendrix59, kurnik.com, 2009.

3.e3 Nf6 4.Nf3 =.

3.Nf3 a6 4.e3 Bg4 5.h3 Bf3 6.Qf3+= Nf6 7.Nc3 e5= 8.e4 d4–/+ 9.Nd5 Nd5 10.ed5= Bb4 11.c3 dc3 12.dc3=+ Bc5 13.Bd3 Qf6 14.Qf6= gf6 15.Ke2 Nd7 16.a4 Nb6 17.c4= Bd4 18.Bd4+= ed4 19.Rhb1 0–0–0 20.Bf5 Kb8 21.Kd3+/– Rhg8 22.g4 Ka7 23.Kd4+– Rc8? 24.c5 Na8 25.Bc8 Rc8 26.Re1 c6 27.d6 Rd8 28.Re7 Kb8 29.Rf7 b6 30.Rf6 bc5 31.Kc5 Rc8 32.Rb1 Ka7 33.Rf7 Nc7 34.Rc7 Rc7 35.dc7 Ka8 36.c8Q (36.c8Q Ka7 37.Qb7#) 1–0. pierre – ft, internet, 2010.

3.Nf3 f6 4.e3 (4.Nh4 h5+=) 4...e5 (4...e6 5.a3=) 5.Nh4 Bb4?? (better is 5...Ne7=) 6.Qh5+– Kd7 7.Qg4 (7.Qg4 Kc6 8.Qb4+–) 1–0. Wall,Bill – Odoherty, internet, 2002.

3.Nf3 Nf6 4.e3 =.

2...Nh6

3.b5 a6 4.a4 =.

3.b5 Qd6 4.e3 e5 5.c4 d4 6.ed4 ed4 7.Nf3 d3 8.Qb3 Bf5 9.Bd4 Qe6 10.Be3 Qf6 (10...Nd7!? 11.Nd4 Qe5=) 11.Nc3+/– Bd6? (better is 11...Nd7!? 12.Qb1 Ne5 13.Ne5 Qe5 14.Bd3 0–0–0+=) 12.c5+– Be5 (better is 12...Bf8 13.Rc1 Be6+–) 13.Bg5 Be6 (13...Qg6 14.Qd5 Bf6 15.Bf6 Qf6 16.Qb7 Qe7 17.Be2 0–0 18.Qa8 c6+–) 14.Bf6 Bb3 15.Be5 (15.ab3?! Bf6 16.Bd3 Nd7+–) 15...f6 16.ab3 fe5 17.Nd5 Kd7 (17...Kd8 18.Ng5 Re8 19.b6+–) 18.Ne5 Kc8 (18...Ke6 19.Nc7 Ke5 20.Na8+–) 19.Nc7! Kc7 (19...Nc6 20.Na8 Re8 21.f4 Ne5 22.fe5 Re5 23.Kf2+–) 20.b6! Kc8 21.Ra7 Re8 22.f4 Nf7 23.Ra8 Ne5 24.fe5 Re5 25.Kd1 Rd5 26.g3 Rc5 27.Bh3 Kd8 28.Re1 (28.Re1 Rc8 29.Bc8 Kc8 30.Re7 Kd8 31.Rb7 Kc8 32.Rab8#) 1–0. ossekop (2070) – ollie101 (1610), gameknot.com, 2013.

3.e3 Nc6 4.a3 Bg4 5.Nf3 e6 6.Be2 Nf5 7.h3 Bf3 8.Bf3 Qd6 9.d3 Be7 (9...0–0–0 10.0–0=) 10.Nd2 (10.g4 Nh4 11.Bg7 Rg8+=) 10...Bh4 11.0–0 0–0 12.Be2 Rfd8 13.Nf3 Kf8 14.Nh4 Nh4 15.c4 dc4 16.dc4 Qe7 17.Qc2 Qg5 18.g3 Nf5 19.Kh2 e5 (19...h6!?+=) 20.Rad1 Ng3 (better is 20...f6+/–) 21.fg3+– Rd1 22.Rd1 (worse is 22.Bd1 Kg8 23.b5 Ne7+–) 22...Qe3 23.Bg4 Nd4 24.Bd4 ed4 25.a4 (better is 25.Qh7 Qf2 26.Kh1+–) 25...g6 26.c5 (26.Rd3 Qe5 27.Bf3+–) 26...Ke7? (26...h5!? 27.Rd3 Qe1+/–) 27.Qd3 (better is 27.c6!? b6 28.Rd3+–) 27...Qd3 28.Rd3 Rd8 29.Kg2 b6 30.cb6 ab6 31.Bf3 (31.b5 f5 32.Be2 Ke6+/–) 31...c5 32.bc5 bc5 33.Bc6 (33.a5 c4 34.Rd1 Rd6 35.Re1 Kd7+–) 33...c4 34.Rd1 c3 35.Bb5 f5 36.Kf2 Rc8 37.Bd3 (37.Rd4?? c2 38.Rd7 Kf6–+) 37...Ke6 38.Bc2 Kd5 39.Ke2 (39.a5 Rb8 40.a6 Kc5+/–) 39...Rb8 (39...Re8 40.Kf1 Re3 41.Rd3+=) 40.Kd3 (40.a5!?+/–) 40...Re8= 41.Bb3 Kc5 42.Rg1?? (better is 42.a5!? Re3 43.Kc2 Rg3 44.a6 Rg2 45.Kd3 Rg3 46.Kc2=) 42...Re3–/+ 43.Kc2 Re2 44.Kd3 (44.Kc1 d3 45.Rd1–+) 44...Rd2# 0–1. Fournier,Frederic – Computer_Hard, Active, 2012.

3.e3 Qd6 4.a3 =.

3.e3 e5 4.Be5 f6 5.Bc3 f5 6.Nf3 Nc6 7.b5 Ne7 8.Be2 Rg8 9.0–0 c6 10.Ng5 cb5 11.Bb5 Nc6 12.Nh7 Bc5 13.Qh5 g6 14.Qh6 Kf7 15.Ng5 (time, 1–0). Bonetti,Shane – Boccin (938), ICC, 2002.

3.e3 Bf5 4.h3 (4.Nf3 f6=) 4...e6 5.g4 (5.a3 f6=) 5...Bg6 (5...Be4 6.Nf3+=) 6.Bg2 (6.a3 Be4 7.Nf3 a5+=) 6...Nd7 (6...f6 7.a3+=) 7.h4 (7.Nf3 Be4+= (7...Bb4? 8.Bg7 Rg8 9.Bh6+–)) 7...f5 (7...Nb6 8.f4+=) 8.gf5 (8.g5 Nf7=) 8...Nf5 9.h5 Bf7 10.e4 (10.a3 e5+=) 10...Nh4 11.Bh3 (11.Bf3 Nf3 12.Qf3 Nf6+=) 11...Nf6 (11...Qg5 12.h6–/+) 12.Bf6 (better is 12.Qe2!? Ne4 13.Qb5 Ke7 14.h6+=) 12...Qf6–/+ 13.ed5?? (better is 13.c3–/+) 13…Qa1 (13...Qa1 14.de6 Qe5 15.Qe2 Qe2 16.Ne2 Bh5–+) 0–1. PapaBear – Wall,Bill, internet, 2003.

3.e3 Bg4 4.Be2 Bf5 5.Nf3 Qd7 6.a3 Qc6 7.d4 (better is 7.Nc3!? Qd7 8.d3+/–) 7...Bc2= 8.Qd2 Be4 9.Nc3 Bf3 (9...Qg6 10.0–0=) 10.Bf3 (10.Bb5 Bg2 11.Rg1 Bf3 12.Bc6 bc6+–) 10...Nf5?? (better is 10...e6!?=) 11.Bd5 (worse is 11.Nd5 Nh4 12.Nf6 Qf6 13.Bb7 Ng2 14.Kd1 c6+–) 11...Qd6?? (11...Qb6 12.0–0+/–) 12.Bf3 (better is 12.Bb7 Qd7 13.Ba8+–) 12...c6+/– 13.0–0 Nh4 14.Qe2 (14.Be4 e6+/–) 14...Qg6 15.Ne4 Nf3 16.Qf3 Nd7 17.Nc5 Nc5 18.dc5 e6 19.Rfd1 Be7 20.Rd2 0–0 (20...f6 21.Rad1 Rd8 22.Rd8 Bd8 23.e4+=) 21.Rad1 (21.Rd7 Bh4 22.Rb7 a5+–) 21...b6 (better is 21...Rfd8!?+=) 22.cb6+– ab6 23.Qc6 Rac8 (23...Bf6 24.Bf6 Qf6 25.a4+/–) 24.Qf3 (24.Qb6 Rc2 25.Qb5 Rd2 26.Rd2 Rc8+–) 24...Bd8 (24...Rc2 25.e4 Rfc8 26.Rc2 Rc2 27.Bd4+/–) 25.Rd4 (better is 25.Qb7 Bh4 26.Qb6+–) 25...Bc7? (better is 25...Bg5+–) 26.Rg4 Qh6 27.Rg7 Kh8 (27...Qg7 28.Bg7 Kg7 29.Qg4 Kh8+–) 28.Rg6 Qg7 (28...f6 29.Bf6 Qg7 30.Rg7 Rf6 31.Qf6 Be5 32.Qe5 h6 33.Rgd7 Kg8 34.Qg7) 29.Rg7 1–0. Fournier,Frederic (1610) – patoloco, Active, 2007.

3.Nf3 Bf5 =.

3.d4 a6

4.a3 a5 A) 5.ba5 e6 (5...Ra5 6.e3 Bf5 7.Nf3 e6 8.c4 Be7 9.Qb3 b6 10.Be2 0–0 11.0–0 Ng4=; 5...Nc6 6.e3 Bg4 7.Nf3 e6 8.a6 ba6 9.c4 Qd7 10.Nc3 Be7 11.cd5 ed5=; 5...Bf5 6.c4 dc4 7.e3 Nc6 8.Bc4 Na5 9.Be2 e5 10.d5 Bd6 11.e4 Bg6=) 6.Nd2 Be7 7.e4 de4 8.Ne4 Qd5 9.Bd3 f5 10.Qh5 Nf7 11.c4 Qc6+=; B) 5.b5 e6 (5...Bf5 6.Nf3 e6 7.e3 Bd6 8.c4 0–0 9.Nc3 dc4 10.e4 Bg4 11.h3 Bf3+=) 6.Nc3 Be7 7.e4 de4 8.Ne4 0–0 9.Nf3 c6 10.Bd3 cb5 11.Bb5 Qb6=.

4.a3 e6 5.Nc3 Be7 (5...f5 6.e3 Bd6 7.Be2 Bd7 8.Nf3 0–0 9.0–0 Qf6 10.Qd3 Nf7 11.Rfe1 Nc6=; 5...a5 6.b5 Be7 7.e4 f5 8.Qh5 Nf7 9.ed5 ed5 10.Bd3 g6 11.Qf3 c6+=; 5...Nc6 6.e4 Be7 7.Nf3 de4 8.Ne4 Nf5 9.Be2 0–0 10.0–0 Qd5 11.Qd3 b5+=; 5...Nf5 6.e4 de4 7.Ne4 Be7 8.Nf3 Nc6 9.Ng3 0–0 10.Nf5 ef5 11.d5 Re8+=) 6.e4 de4 7.Ne4 0–0 8.Nf3 a5 9.b5 c6 10.Bd3 cb5 11.Bb5 Qb6 =.

4.a3 Bf5 A) 5.Bc1 Qd6 (5...Ng4 6.Nf3 e6 7.Bg5 Nf6 8.e3 h6 9.Bf4 Nbd7 10.Be2 Ne4 11.0–0 g5=; 5...Ng8 6.Nf3 Nf6 7.Bf4 e6 8.e3 Be7 9.Bd3 Bd3 10.Qd3 Nh5 11.Be5 f6=) 6.Nf3 Nd7 7.Nh4 Qf6 8.g3 g5 9.Nf5 Nf5 10.e3 Bg7 11.Bb2 Qe6=; B) 5.Nf3 e6 6.Bc1 Ng4 7.Bg5 Be7 8.Be7 Qe7 9.e3 Nd7 10.Bd3 Bd3 11.Qd3 e5=; C) 5.e3 a5 (5...e6 6.Nf3 Bd6 7.c4 dc4 8.Bc4 0–0 9.0–0 Nd7 10.Nc3 a5 11.b5 Nb6=; 5...Nd7 6.c4 e6 7.Nc3 Nf6 8.Nf3 Be7 9.Be2 0–0 10.0–0 dc4 11.Bc4 Qd6=) 6.b5 e6 7.c4 Be7 8.Nf3 0–0 9.Be2 c6 10.Qa4 dc4 11.Qc4 cb5=.

4.a3 Bg4 A) 5.Nf3 e6 (5...Bf3 6.ef3 e6 7.c4 Nc6 8.Nc3 Nf5 9.cd5 ed5 10.Bd3 Nfd4 11.0–0 Bd6=) 6.Bc1 Bf3 7.ef3 Nf5 8.c3 Bd6 9.Qa4 c6 10.Bd3 0–0 11.Qc2 Re8+=; B) 5.f3 Bd7 6.e4 de4 7.fe4 e5 8.Nf3 ed4 9.Bd4 Nc6 10.Bc4 Nd4 11.Qd4 b5=; C) 5.Nc3 Bf5 6.Bc1 Ng8 7.Nf3 e6 8.Bf4 Nf6 9.e3 a5 10.b5 Be7 11.Bd3 Bd3=; D) 5.h3 Bf5 6.g4 Be4 7.f3 Bg6 8.h4 f5 9.h5 Bf7 10.g5 Ng8 11.f4 e6=; E) 5.Bc1 Qd6 (5...Ng8 6.Nf3 Nf6 7.Ne5 Bf5 8.e3 e6 9.g4 Bg6 10.h4 Bd6 11.h5 Be4+/–) 6.h3 Bf5 7.Nf3 Qc6 8.c4 dc4 9.Nc3 b5 10.g4 Bd7 11.Bg2 Ra7+=.

4.Bc1 Nc6 A) 5.a3 Nf5 (5...Qd6 6.Nf3 Bg4 7.c3 0–0–0 8.h3 Bf3 9.ef3 e5 10.b5 ab5 11.Bb5 ed4=; 5...Ng4 6.Nf3 Qd6 7.Nc3 Nf6 8.b5 Na5 9.Ne5 ab5 10.Nb5 Qb6 11.Rb1 Nc4+/–; 5...e5 6.Bh6 gh6 7.e3 Rg8 8.de5 Ne5 9.Nc3 Be6 10.Nge2 Bg7 11.Nd4 Qf6=) 6.Nf3 e6 7.Bf4 Be7 8.e3 g5 9.Bg3 h5 10.b5 ab5 11.Bb5 h4–+; B) 5.Bh6 gh6 6.c3 e5 7.e3 Rg8 8.Ne2 Bd6 9.de5 Be5 10.Nd4 Qf6 11.Nd2 Bg4=.

4.Bc1 Qd6 A) 5.a3 Nd7 (5...Ng4 6.Nf3 Nc6 7.Nc3 Nf6 8.b5 Na5 9.Ne5 ab5 10.Nb5 Qb6 11.Rb1 Nc4+/–; 5...Bf5 6.Nf3 Nd7 7.Nh4 Qf6 8.g3 g5 9.Nf5 Nf5 10.e3 Bg7 11.Bb2 Nd6=; 5...Bg4 6.h3 Bf5 7.Nf3 Qc6 8.c4 dc4 9.Nc3 b5 10.g4 Bd7 11.Bg2 Ra7+=; 5...Nc6 6.Nc3 e5 7.de5 Qe5 8.Bb2 d4 9.Nf3 Qd6 10.Ne4 Qg6 11.Ng3 Nf5+=; 5...Qc6 6.Bh6 Qh6 7.e3 e6 8.Nf3 Bd6 9.c4 dc4 10.Bc4 Nc6 11.Nc3 0–0=) 6.Nf3 Ng4 7.Qd3 Ngf6 8.Nc3 Qc6 9.Rb1 e6 10.Ne5 Ne5 11.de5 Nd7=; B) 5.c3 Nd7 (5...Ng4 6.Nf3 Bf5 7.e3 e6 8.Bd3 Bg6 9.a3 a5 10.b5 Bd3 11.Qd3 c6=; 5...Bf5 6.Nf3 Ng4 7.h3 Nf6 8.g4 Be4 9.Nbd2 e6 10.Bg2 Be7 11.g5 Bf3=; 5...Bg4 6.f3 Bf5 7.g4 Bg6 8.Nh3 Qc6 9.Bh6 Bb1 10.Bd2 Bg6 11.Nf4 Nd7=; 5...a5 6.b5 Bd7 7.e3 Qb6 8.Qe2 Nf5 9.Nd2 Nd6 10.c4 dc4 11.Nc4 Nc4=; 5...Nc6 6.Nf3 Ng4 7.Ba3 b5 8.Bc1 e5 9.a4 Rb8 10.ab5 ab5 11.h3 Nf6=) 6.Nf3 Ng4 7.Qd3 Ngf6 8.Nbd2 e5 9.de5 Ne5 10.Ne5 Qe5 11.Nf3 Qd6+=; C) 5.Bh6 Qh6 6.e3 Bf5 7.Nf3 e6 8.a3 Bd6 9.Bd3 Bd3 10.Qd3 0–0 11.0–0 a5=.

4.Bc1 Nf5 A) 5.c3 Nd7 (5...a5 6.b5 Nd6 7.e3 Bf5 8.Nf3 e6 9.Nbd2 c6 10.Ba3 Nb5 11.Bf8 Rf8=; 5...e6 6.Nd2 a5 7.ba5 Be7 8.e4 de4 9.Ne4 0–0 10.Nf3 Ra5 11.Bd3 b6=) 6.Nf3 e6 7.Bf4 Be7 8.e3 a5 9.b5 g5 10.Bg3 h5 11.h3 Ng3–/+; B) 5.Nf3 e5 6.de5 Bb4 7.c3 Be7 8.e3 Nc6 9.Nbd2 Nh6 10.Bb2 Bf5 11.c4 0–0+=; C) 5.a3 e6 6.Bf4 g5 7.Bc1 Nc6 8.c3 Be7 9.Nf3 g4 10.Ne5 Ne5 11.de5 Rg8=.

4.Bc1 Ng4 A) 5.h3 Nf6 6.a3 Bf5 7.Nf3 e6 8.g4 Be4 9.Nbd2 Bd6 10.Bg2 Bf3 11.Nf3 0–0=; B) 5.c3 Qd6 (5...Bf5 6.Nf3 e6 7.Bg5 Nf6 8.e3 h6 9.Bf4 Nbd7 10.Be2 g5 11.Bg3 Ne4=; 5...Nf6 6.Nf3 Bf5 7.Bf4 a5 8.ba5 Ra5 9.e3 e6 10.Qb3 b6 11.Bb5 c6=; 5...a5 6.b5 Bf5 7.Nf3 e6 8.Bg5 Be7 9.Be7 Qe7 10.e3 0–0 11.Be2 Nf6=; 5...Nc6 6.Nf3 Qd6 7.Ba3 b5 8.Bc1 e5 9.a4 Rb8 10.ab5 ab5 11.h3 Nf6=) 6.Nf3 Bf5 7.h3 Nf6 8.g4 Be4 9.g5 Bf3 10.ef3 Nfd7 11.Be3 e5+=; C) 5.a3 Nf6 (5...Bf5 6.Nf3 e6 7.Bg5 Nf6 8.e3 a5 9.b5 h6 10.Bf4 Nbd7 11.Bd3 Ne4=; 5...Qd6 6.Nf3 Nd7 7.Qd3 Ngf6 8.Nbd2 e5 9.e4 ed4 10.Qe2 de4 11.Ne4 Qe7=) 6.Nf3 Bf5 7.Bf4 Nbd7 8.e3 e6 9.Be2 Bd6 10.Bd6 cd6 11.0–0 Rc8=.

4.c3 Qd6 A) 5.a3 Bg4 (5...Bf5 6.e3 e6 7.Nf3 Nc6 8.Nbd2 Be7 9.Be2 0–0 10.0–0 Rfd8 11.c4 dc4=; 5...Nc6 6.Nd2 Bf5 7.c4 e6 8.e3 Be7 9.Ngf3 0–0 10.c5 Qd7 11.Be2 Ng4=; 5...a5 6.Nf3 Bf5 7.e3 e6 8.c4 Be7 9.Qa4 Qd7 10.b5 0–0 11.Be2 c6=) 6.Nf3 Nd7 7.Nbd2 e5 8.de5 Ne5 9.e3 0–0–0 10.Be2 Qe6 11.Ne5 Be2=; B) 5.e3 Nc6 (5...Nd7 6.Qa4 c6 7.Nf3 e5 8.de5 Ne5 9.Nbd2 Be7 10.Ne5 Qe5 11.b5 Rb8=; 5...Bf5 6.a3 e6 7.Nf3 Be7 8.c4 0–0 9.c5 Qc6 10.Nc3 Bf6 11.Be2 Rc8=; 5...Bg4 6.Nf3 Nc6 7.Be2 e6 8.Qa4 Ra7 9.Nbd2 Be7 10.h3 Bh5 11.0–0 0–0=) 6.Nf3 e5 7.b5 ab5 8.Bb5 ed4 9.Nd4 Bd7 10.Nc6 Bc6 11.c4 Rd8=; C) 5.Nd2 Bf5 (5...Nc6 6.e4 e5 7.Qe2 Bg4 8.f3 Be6 9.ed5 Qd5 10.c4 Qd7 11.d5 Nb4+=; 5...e5 6.de5 Qe5 7.Ngf3 Qe6 8.e3 Nf5 9.a3 c5 10.bc5 Bc5 11.Bd3 Nc6=) 6.Ngf3 e6 7.Nh4 Bg4 8.h3 Bh5 9.Ndf3 Be7 10.Bc1 Ng8 11.g4 Qd8=; D) 5.Bc1 Ng4 (5...Bf5 6.Nf3 Ng4 7.h3 Nf6 8.g4 Be4 9.Nbd2 Qc6 10.Qb3 Bf3 11.ef3 e6=; 5...Nd7 6.Nf3 Ng4 7.Bg5 h6 8.Bh4 a5 9.b5 f5 10.h3 Ngf6 11.Bg3 f4=; 5...Bg4 6.f3 Bf5 7.g4 Bg6 8.Nh3 Qc6 9.Bh6 Bb1 10.Bd2 Bg6 11.Nf4 Nd7=) 6.Nf3 Bf5 7.h3 Nf6 8.g4 Be4 9.g5 Bf3 10.ef3 Nh5 11.Be3 Nd7+=; E) 5.Nf3 Bf5 (5...Nc6 6.Ba3 Qf6 7.Bc1 Bg4 8.Qa4 Bd7 9.Qb3 e6 10.Nbd2 Qg6 11.Qb1 Nf5=) 6.e3 e6 7.Ba3 Nd7 8.b5 Qb6 9.Bf8 Rf8 10.ba6 ba6 11.c4 Rb8=.

4.c3 e6 A) 5.Nf3 Be7 (5...Bd6 6.Nbd2 a5 7.b5 0–0 8.e4 c6 9.e5 Be7 10.Qc2 Nf5 11.g4 Nh6=; 5...Nf5 6.Nbd2 a5 7.a3 Be7 8.e4 de4 9.Ne4 0–0 10.Bd3 Bd7 11.0–0 Bc6+=; 5...a5 6.b5 c5 7.dc5 Bc5 8.c4 0–0 9.cd5 ed5 10.e3 Bg4 11.Be2 Qd6+=; 5...Ng4 6.Nbd2 Nf6 7.e3 Bd6 8.Bd3 Nbd7 9.0–0 0–0 10.a3 e5 11.de5 Ne5=; 5...Qf6 6.Nbd2 Qf5 7.Qb1 Nd7 8.e4 Qg6 9.a3 a5 10.b5 Be7 11.Be2 0–0=) 6.e3 Bd7 7.Bd3 Bb5 8.Bb5 ab5 9.0–0 0–0 10.Qe2 c6 11.Nbd2 Nd7=; B) 5.e3 Bd6 (5...Bd7 6.Nf3 Bd6 7.Bd3 Bb5 8.e4 de4 9.Be4 Bc6 10.Qe2 0–0 11.Bc1 Nf5=) 6.Bd3 Bd7 7.Bc1 Nf5 8.e4 de4 9.Be4 Bc6 10.d5 Bd5 11.Bd5 ed5=; C) 5.Bc1 Ng8 (5...Nf5 6.Nd2 a5 7.ba5 Ra5 8.e4 de4 9.Ne4 e5 10.Qe2 b6 11.de5 Ba6=) 6.Bf4 Ne7 7.e3 Ng6 8.Bg3 h5 9.Nf3 h4 10.Be5 f6 11.Bf4 Nf4+=; D) 5.Qc2 Bd6 (5...Bd7 6.Bc1 Nf5 7.Nd2 a5 8.ba5 Bb5 9.Ngf3 Ra5 10.e4 Bf1 11.Nf1 de4=; 5...Ng4 6.e4 de4 7.Qe4 Nf6 8.Qh4 Be7 9.Nf3 0–0 10.Bd3 Nc6 11.0–0 e5=; 5...a5 6.ba5 Ra5 7.e4 de4 8.Qe4 Nd7 9.Bd3 Nf6 10.Qf3 c5 11.Ne2 Qd5=; 5...Nd7 6.Nd2 e5 7.e4 ed4 8.ed5 Nf6 9.c4 Bf5 10.Qa4 Qd7 11.Qd7 Kd7=) 6.e4 de4 7.Qe4 Bd7 8.Bc4 0–0 9.Bd3 Nf5 10.Nf3 Bc6 11.Qg4 Nd7=; E) 5.Nd2 Be7 (5...a5 6.a3 Be7 7.e4 0–0 8.Bd3 de4 9.Ne4 b6 10.Nf3 c6 11.ba5 Ra5=; 5...Nc6 6.Ngf3 Bd6 7.e4 de4 8.Ne4 0–0 9.Nd6 Qd6 10.Bd3 e5 11.Qc2 ed4=; 5...Bd7 6.e4 de4 7.Ne4 Bc6 8.Qc2 Qh4 9.Bd3 f5 10.Nf3 Qg4 11.Ng3 Bf3=; 5...Nf5 6.e4 de4 7.Ne4 Bd7 8.Nf3 Be7 9.Bd3 Bb5 10.0–0 Bd3 11.Qd3 0–0=) 6.e4 0–0 7.Ngf3 a5 8.b5 c5 9.Ba3 Nd7 10.Bd3 c4 11.Be7 Qe7=.

4.c3 Bf5 A) 5.Nf3 a5 (5...Ng4 6.e3 e6 7.Bd3 Qf6 8.h3 Nh6 9.Be2 Qd8 10.0–0 Bd6 11.a3 0–0=; 5...Nd7 6.Bc1 Ng4 7.Bf4 Ngf6 8.e3 e6 9.Be2 Be7 10.0–0 0–0 11.Bd3 Bd3=; 5...Nc6 6.Bc1 Ng4 7.Bf4 e6 8.e3 Bd6 9.Bd6 cd6 10.Bd3 Bd3 11.Qd3 0–0=; 5...e6 6.Bc1 Ng4 7.Bg5 Be7 8.Be7 Qe7 9.e3 0–0 10.Bd3 Bd3 11.Qd3 a5=) 6.Bc1 Ng4 7.ba5 Ra5 8.Bd2 e6 9.c4 Ra7 10.e3 Be7 11.c5 0–0+=; B) 5.Bc1 Qd6 (5...Ng4 6.Nf3 e6 7.Bg5 Be7 8.Be7 Qe7 9.e3 0–0 10.Bd3 Bd3 11.Qd3 a5=; 5...Ng8 6.Nf3 Nf6 7.Nbd2 a5 8.Qa4 Nbd7 9.ba5 e6 10.Nh4 Bg4 11.Rb1 b6=) 6.Nf3 Ng4 7.h3 Nf6 8.g4 Be4 9.Nbd2 e6 10.Bg2 Be7 11.g5 Bf3=.

4.e3 e5 5.a3 ed4 (5...a5 6.b5 ed4 7.Qd4 Nf5 8.Qd2 Be7 9.c4 Be6 10.cd5 Bd5 11.Qd3 Be6+=; 5...e4 6.c4 dc4 7.Qc2 Bf5 8.Bc4 Qg5 9.g3 Qg6 10.Nc3 c6 11.h3 b5+=) 6.Qd4 Nf5 7.Qd2 Be6 8.Nf3 Nc6 9.Be2 Bd6 10.0–0 0–0 11.Rd1 Re8 =.

4.e3 e6 5.a3 a5 (5...Bd6 6.c4 dc4 7.Bc4 Bd7 8.Nf3 Bb5 9.Bb3 0–0 10.Nc3 Qd7 11.d5 ed5+/–) 6.b5 Bd6 7.c4 dc4 8.Bc4 0–0 9.Nf3 Nd7 10.0–0 Nb6 11.Bd3 Nd5 +=.

4.e3 Bf5 A) 5.a3 Nd7 (5...a5 6.b5 e6 7.Nf3 Bd6 8.c4 dc4 9.Nbd2 0–0 10.Nc4 Nd7 11.Be2 Qf6+=; 5...e6 6.Nf3 Bd6 7.c4 dc4 8.Bc4 0–0 9.0–0 Nd7 10.Nc3 a5 11.b5 Nb6=) 6.c4 e6 7.Nc3 Nf6 8.Nf3 Be7 9.Be2 0–0 10.0–0 dc4 11.Bc4 Bd6=; B) 5.c4 e6 (5...dc4 6.Bc4 e6 7.a3 Bd6 8.Nf3 0–0 9.0–0 Nd7 10.Nc3 Nb6 11.Bd3 Bd3=) 6.a3 Be7 7.Nf3 0–0 8.Nc3 c6 9.Be2 dc4 10.Bc4 b5 11.Be2 a5=.

4.e3 Nf5 5.Nc3 (5.a3 e6= (5...a5 6.b5 e6 7.Nf3 Be7 8.Bd3 0–0 9.0–0 c6 10.Nc3 Nd6 11.Qe2 Bd7+=; 5...Nd7 6.c4 e6 7.Nf3 Nf6 8.Ne5 Be7 9.cd5 ed5 10.Bd3 0–0 11.Qc2 Nh6+=; 5...Nh4 6.Nd2 e6 7.c4 Bd6 8.Ngf3 0–0 9.c5 Be7 10.Nh4 Bh4 11.Bd3 Bd7+=) 6.c4 a5 7.Qa4 Bd7 8.b5 dc4 9.Bc4 Nd6 10.Nf3 Nc4 11.Qc4 c6=; 5.Nf3 e5 (5...e6 6.a3 Bd6 7.Bd3 0–0 8.0–0 a5 9.b5 Bd7 10.c4 dc4 11.Bc4 c6+=) 6.Ne5 Bb4 7.Bc3 Bd6 8.Bd3 Qg5 9.0–0 Nh4 10.g3 Ng6 11.f4 Qf6=; 5.c4 e5 6.de5 Bb4 7.Bc3 Bc3 8.Nc3 d4 9.ed4 Nd4 10.Nge2 c5 11.Nd4 cd4=) 5...e6 (5...e5 6.de5 Bb4 7.Nf3= c5 8.a3 Ba5 9.Qe2 0–0 10.0–0–0 Bc3 11.Bc3 b5=) 6.Nf3 (6.a3 Nc6 (6...Be7= 7.Bd3 Nh4 8.g3 Nf5 9.Qf3 Nd6 10.Nge2 Nc6 11.e4 de4=) 7.Nf3 Bd6 8.Bd3 Nh4 9.b5 ab5 10.Nh4 b4 11.Nb5 Qh4=) 6...h6 (6...Bb4 7.a3 Ba5 8.Bd3–/+ 0–0 9.0–0 Qf6 10.Rb1 Nc6 11.Na4 b5–/+) 7.Be2 (better is 7.a3!?= Bd6 8.e4 de4 9.Ne4 0–0 10.Nd6 cd6 11.Bd3 Qf6+=) 7...Bb4–/+ 8.0–0 (8.a3 Be7 9.0–0 Nc6 10.e4 de4 11.Ne4 b5+=) 8...Be7 (8...Nc6 9.a3 Ba5 10.Na4 b6 11.Bd3 0–0–/+) 9.Qd2 (9.Bd3 0–0+= 10.Ne5 c6 11.Qh5 Nd7+=; 9.Ne5 Nd7 10.Bd3 c6 11.Re1 0–0+=) 9...Nc6 (9...0–0 10.e4 de4 11.Ne4 b5–/+) 10.a3 (10.e4 de4 11.Ne4 0–0+=) 10...Bf6 (10...0–0 11.e4 de4–/+) 11.e4 (better is 11.Na2!?+= Nd6+=; 11.Rfb1 Nd6+=) 11...Nfd4–+ 12.Nd4 Nd4 13.ed5 ed5 14.Rfe1 (14.Na4 Ne2 15.Qe2 Be6 16.Bf6 Qf6–/+ (16...gf6?! 17.Nc5+=)) 14...0–0 15.Bd3 Bg5 (15...c5 16.Na4–+) 16.Qd1 c6 (16...c5 17.Rb1–+) 17.Nb1 (17.Nd5!? Nc2 18.Qc2 cd5 19.Qb3–/+) 17...Nf5 (17...Bf6 18.Bd4 Bd4 19.Bh7 Kh7 20.Qd4–+) 18.Bc1 (18.Qg4 Bf6 19.Nc3 Qa5–+) 18...Bc1 19.Qc1 Be6 20.Bf5 (20.Qb2 Qg5 21.Re2 Nh4–+) 20...Bf5 21.Nd2 Qd6 22.Nf3 (22.c4 Rfe8–+) 22...Rfe8 23.h3 (23.Qb2 b5–+) 23...Re1 24.Ne1 Re8 25.Nf3 Qg6 (better is 25...b5 26.a4–+) 26.h4? (26.Nh4 Qf6 27.Nf5 Qf5–+) 26...Be4 (26...Bc2 27.Nd4 Bd3 28.Qc3–+) 27.Qd1 (27.Ne1 d4–+) 27...Bc2 28.Qd2 (28.Qd4 Be4 29.Ne1 Qd6–+) 28...Be4 29.Qd1 (29.Qf4 b5–+) 29...Re6 (29...Qg4 30.Rc1–+) 30.Rc1 (30.Ne1 Qf6–+) 30...Rf6 (better is 30...Qg4 31.Ne1 Qh4 32.Qd4–+) 31.Rc3 (31.Ne1 b6–+) 31...b5 (31...d4 32.h5 Qg4 33.Qd4 Bf3 34.Qg4 Bg4 35.Rc5–+) 32.Kf1 (32.Ne1 Re6–+) 32...Re6 (better is 32...Qg4 33.Re3–+) 33.g3 (33.Re3 Qg4–+) 33...Qg4 34.Kg2 (34.Re3 Rf6 35.Re4 Qe4–+) 34...f5 (better is 34...d4 35.Rd3 Rf6 36.Rb3–+) 35.Kf1 (35.Qd2 d4! 36.Rb3 c5–+) 35...Rd6 (35...f4 36.Kg2–+) 36.Kg2 (36.Qb3 c5! 37.Ne1–+) 36...Re6 37.Rb3?? (37.Kf1 f4 38.Kg2–+) 37...f4–+ 38.Rc3 g5 (better is 38...fg3 39.fg3 Rg6 40.Qe1–+) 39.hg5 hg5 40.Kf1 (40.Qb3 Qh5 41.Qd1 g4 42.Qd5 Bd5 43.Re3 Bf3 44.Rf3 gf3 45.Kf1 Qh1) 40...fg3 (40...Qh3 41.Ke2 Bf3 42.Kf3 Qh5 43.Kg2 Qd1 44.gf4 gf4 45.a4 Rg6 46.Rg3 fg3 47.a5 gf2 48.Kf2 Rf6 49.Kg3 Qg1 50.Kh4 Rh6) 41.fg3 (41.Kg2 gf2 42.Kf2 Rf6–+) 41...Qg3 42.Rb3 (42.Qe1 Qh3 43.Kf2 Bf3 44.Qe6 Qe6 45.Rf3–+) 42...Rf6 0–1. JThomasJeffrey (1610) – sjoukje10 (1615), ChessWorld.net, 2009.

4.e3 Bg4 A) 5.Qd2 Nd7 (5...e6 6.Bd3 Bd6 7.a3 0–0 8.e4 de4 9.Be4 c6 10.Nf3 f5 11.Bd3 Bf3+=; 5...Nc6 6.b5 ab5 7.Bb5 e6 8.h3 Bf5 9.Qc3 Qd6 10.a4 Kd8 11.Bc6 Qc6=) 6.Bd3 e6 7.e4 de4 8.Be4 c6 9.a3 Bd6 10.Ne2 Bf5 11.Nbc3 Nf6+=; B) 5.f3 Bf5 6.g4 Bd7 7.a3 e6 8.Nh3 Bd6 9.c4 dc4 10.Bc4 0–0 11.Nc3 Bc6=; C) 5.Nf3 e5 (5...e6 6.a3 Bd6 7.c4 dc4 8.Bc4 0–0 9.0–0 Qf6 10.Nbd2 Qg6 11.Rc1 Nc6=) 6.de5 Bb4 7.c3 Ba5 8.Nbd2 Nc6 9.Qb3 Rb8 10.0–0–0 Be6 11.Nc4 b5+=; D) 5.Be2 Be2 6.Qe2+= e6 7.a3 Qg5 8.f4 Qh4 9.g3 Qd8 10.e4 de4 11.Qe4 c6=.

4.Nf3 e5 5.de5 (5.Ne5 Bb4 6.Bc3 Bd6 7.e3 0–0 8.Bd3 Re8 9.0–0 Nd7 10.Nf3 Nf6 11.Bb2 Bg4+=) 5...Bb4 6.Bc3 Nc6 7.Bb4 Nb4 8.a3 Nc6 9.h3 Be6 10.e3 f6 11.ef6 Qf6 +=.

3.Nf3 f6

4.d4 Qd6 5.a3 a5 (5...Bf5 6.e3=) 6.b5+= c6 (6...Bg4 7.Nbd2+=) 7.e3 Bd7 8.bc6 Nc6 (8...Qc6 9.Bd3+=) 9.c4 dc4 10.Bc4 Rc8 (10...e5 11.Nc3 Rc8 12.Nb5+/–) 11.Nbd2+/– e5 12.Ne4 White intends d5 12...Qe7 13.d5 The passed pawn on d5 quickly leads to threats 13...Nd4 14.ed4 (worse is 14.Nd4 Rc4 15.Nd2 Rc5+=; worse is 14.Bd4 Rc4 15.Bc5 Qf7 (worse is 15...Rc5 16.d6 Qd8 17.Nc5+–) 16.Bf8 Re4=) 14...Rc4 15.0–0 (15.Qe2 Bb5 16.de5 Qd7 17.Nf6 gf6 18.ef6 Kd8+–) 15...Ba4+– 16.Qd3 (16.Qe1 Bc2 17.Qe2 Be4 18.Qc4 Qd7+–) 16...b5 17.Rfc1 f5 18.d6 Qb7?! (18...fe4 19.Qc4! bc4 20.de7 ef3 21.ef8N Rf8 22.Rc4 Bb3+–) 19.Nc5 (19.Rc4?! bc4 20.Qc4 Bd7+=) 19...Qd5 20.Ne5 Rc1 21.Rc1 Bd6 22.Na4 Be5. Wittal,Werner – Rushton,Darren, TT–02 TSC, 2002.

4.d4 Bf5 5.a3 =.

4.e3 e5 5.b5 c5 6.d4 e4 7.Nfd2 c4 8.Nc3 Be6 9.g3 (9.Be2 Bd6+=) 9...Nf5 10.Bh3 Bb4 11.0–0 0–0 12.a3 Bc3 13.Bf5 Bf5 14.Bc3 Qd7 15.a4 a6 16.Qb1 Bh3 17.Re1 Qe6 18.ba6 (18.a5 Bg4+=) 18...ba6–/+ 19.Qb7 Nc6 20.Qb6 (20.Rab1 Rfb8 21.Qc7 Rc8–/+) 20...Rab8 21.Qc5 Rfc8 22.Rab1 Nd8 23.Rb8 Rb8 24.Bb4 Nf7 25.Rb1 c3 (25...c3 26.Qc3 a5–+) 0–1. Fournier,Frederic (2095) – Ryska,Jiri, Humphrey Bogart Tournament, 2006.

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  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
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