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1.b4 d5

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2.a3 c5 3.Nf3 Nc6 4.c3 e6 5.g3 b6 6.Bg2 Bb7 7.d3 Nf6 8.0–0 Be7 9.Nbd2 0–0 10.e4 de4 11.de4 Ng4 (11...Qd3 12.Bb2+=) 12.e5 Qd7 (12...Qd3 13.Rb1=) 13.Qe2 Rfd8 14.h3 Nh6 15.Ne4 Qd3 (better is 15...Nf5+=) 16.Qe1?? (better is 16.Qd3 Rd3 17.bc5 bc5 18.Bh6 gh6 19.Rab1+/–) 16...Nb4–/+ 17.Nf6 (17.ab4 Be4 (17...Qe4?! 18.Qe4 Be4 19.Bh6=) 18.Bg5 Bg5 19.Ng5 Bg2 20.Kg2 Nf5–/+) 17...Bf6 (better is 17...gf6 18.ab4 Bf3 19.Bh6 Bg2 20.Kg2 cb4 21.cb4 Qd5 22.Kh2 fe5–+) 18.ef6?? (better is 18.ab4 Be7 19.Bg5 Bg5 20.Ng5 Bg2 21.Kg2–/+) 18...Nc2–+ (18...Bf3?! 19.ab4 Bg2 20.Kg2–/+) 19.Qe5 (19.Ne5 Ne1 20.Nd3 Ng2–+ (20...Bg2?! 21.Re1 Rd3 22.Kg2–+; worse is 20...Rd3 21.Bb7 Rb8 22.Be4+/–; 20...Nd3?! 21.Bb7 Nc1 22.Rac1–+)) 19...Bf3 (19...Na1 20.Ne1 Bg2 21.Nd3 Bf1 22.Kf1–+) 20.Bh6 gh6 (20...Bg2 21.Kg2 Na1 22.Ra1 gh6 23.Qf4–+) 21.Qf4 Bg2 22.Rad1 Qg6 23.Kg2 Rd5 (23...Na3?! 24.Rd8 Rd8 25.Rd1–+) 24.Kg1 Rad8 25.Rd5 ed5 26.Rd1 d4 (worse is 26...Na3 27.Qa4 Nb1 28.Qb3–+) 27.Qe5 Qg5 (27...Kh8 28.cd4 Nd4 29.Kg2–+) 28.Qe7 Qd5 29.Rd2 (29.Qe2 d3 (29...Na3?! 30.cd4 cd4 31.Qg4 Qg5 32.Rd4–+) 30.Qg4 Kf8 31.Qg7 Ke8 32.Qh7 c4–+) 29...d3 0–1. Hummel,Erik Jan – Sprangers,Remco, Stork Young Masters op, 2004. (=1.a3 c5 2.b4 d5)

2.a3 Qd7 3.Bb2 Nf6 4.e3 e6 5.Nf3 a5 6.c3 (6.b5 Bd6=) 6...ab4 7.cb4 c5 8.bc5 Bc5 9.Be2 Qb5?? (better is 9...Nc6=) 10.Bb5+– Nc6 (10...Bd7 11.Bf6 gf6 12.Qc1 Bb5 13.Qc5+–) 11.Nd4 (11.Nd4 Bd7 12.Nb3+–) 1–0. Fournier,Frederic (1925) – rubendonu (1655), Active Blind, 2007.

2.a3 f6 3.h3 b5 (3...e5 4.Nf3+=) 4.e3 (4.e4 c6 5.ed5 Qd5+=) 4...a6 5.g4 (5.d4 Bf5+=) 5...c6 6.Nf3 h5 7.g5 fg5 8.Ng5 e5 9.h4 Be7 10.Qf3 (10.Be2 Nf6=) 10...Bf6 (better is 10...Bg5 11.hg5 Qg5–/+) 11.Nh3?? (11.e4 Bg4 12.Qg3 a5=) 11...Bh3 (11...e4 12.Qg3 Ba1 13.Qg6 Kd7 14.Nc3–+) 12.Bh3?? (better is 12.Qh3 e4 13.d4+=) 12...e4–+ (12...Bh4?! 13.Be6 Qf6 14.Qf6 Bf6 15.e4 de4 16.Nc3–/+) 13.Qg3 Ba1 14.Qg7 (14.Qg6 Kf8 15.Qf5 Bf6 16.Bb2–+) 14...Bg7 15.d4 a5 (15...Bf6 16.Nd2–+) 16.Bd2 ab4 17.Bb4 Qh4 (17...Nh6 18.Nd2–+) 18.Bd6 (18.Bd7 Kd7 19.Rh4–+) 18...Qd8 19.Bc5 Na6 20.Rg1 Rh7 (better is 20...Bh6 21.Bf5–+) 21.Bf5 Nf6 (better is 21...Qa5 22.Kd1 Rh8 23.Rg7 Nc5 24.dc5–+) 22.Bh7 Nh7 (better is 22...Kf7!? 23.Bg6 Ke6 24.Bb4 Nb4 25.ab4–+) 23.Rg7 Nf8 24.Rg8 Nc5 25.dc5 b4! 26.Nd2 Ra3 27.Nb1 Ra1 28.Kd2 Rb1 29.Rh8 d4 30.Rh5 de3 31.Ke3 b3 32.c3 Qd3 33.Kf4 Rf1 34.Re5 Kd7 35.Kg5 Rf2 36.Kh6 Qh3 37.Kg5 Qg3 38.Kh6 Qe5 39.c4 Rh2# 0–1. Pekin Dragons – dunk0104, ChessWorld.net, 2013.

2.a3 g5 3.Bb2 f6 (3...Nf6 4.Nf3=) 4.e3 e5 (4...Bf5!?+=) 5.Qh5+/– Ke7 6.c4 (6.h4!?+/–) 6...Nh6 7.cd5?? (better is 7.h3+=) 7...Bg4–+ 8.Qh6 (8.Qg4 Ng4 9.Be2 Nh6–+) 8...Bh6 9.d4 (9.e4 a5–+) 9...Qd5 10.Nc3 (10.Nd2 ed4 11.Bd4 Nc6 12.Bc5 Ke8–+) 10...Qb3 11.Rb1 (11.Ra2 ed4 12.ed4 Bf5–+) 11...ed4 12.ed4 (12.Ne4 Qc2 13.Nd2 de3 14.fe3 Nc6–+) 12...Rd8 (12...Bf5 13.Bc4 Qc4 14.Rd1–+) 13.f3 (13.Bd3–+) 13...Bf5 14.Be2 (14.Ne4 Qc2 15.Rc1 Qb2 16.Ne2 Qa3 17.Rc7 Rd7 18.Rc4–+) 14...Bb1 15.Kf2 Qb2 16.Nh3 Rd4 (better is 16...Ba2 17.Nb5 a6 18.Nc7 Qd4 19.Kf1–+) 17.Ne4 Bd3 (17...Be4!? 18.fe4 g4 19.b5–+) 18.Re1 Nc6 (better is 18...Be4 19.fe4 g4 20.Ng1–+) 19.Nc5 Rad8 (better is 19...Ne5 20.f4 Rf4 21.Nf4 Qd4 22.Kf1 Qf4 23.Kg1 Qe3 24.Kh1 Be2 25.Rb1–+) 20.Kf1 Be2 (better is 20...Bg6 21.Nb7 Rb8 22.Bd3 Kf7 23.Bg6 Kg6 24.Nc5–+) 21.Re2 Kf7 (better is 21...Qe2! 22.Ke2 Rd2 23.Ke1 Rg2–+) 22.Rb2 Rd1 23.Kf2 g4! 24.fg4 Bg7 (24...Ne5!? 25.Kg3–+) 25.Re2 (25.Nb7 R8d2 26.Rd2 Rd2 27.Kg1 Bh6–+) 25...f5! 26.gf5 Bd4 27.Kf3 (27.Kg3 Bc5 28.bc5 Rg8 29.Kh4 Rd4 30.Kh5–+) 27...Rd3 (better is 27...Bc5 28.Ng5 Kf6 29.Kg4–+) 28.Kg4?? (better is 28.Nd3 Bg1 29.Ne5 Ne5 30.Re5+/–) 28...Ra3 (better is 28...Bc5 29.Ng5 Kg8 30.bc5 Ra3 31.Ne6–+) 29.Nf4 (29.Ng5 Kg8 30.Nge6 Rd5–+) 29...Be3 30.Nce6 (30.Nfe6 Rg8 31.Kh5 Nb4–+) 30...Rd4! 31.g3 (31.Nd4 Ne5 Double attack (31...Ne5 Decoy)) 31...Ne5 (31...Rb4!? 32.Nc7 Bf4 33.gf4–+) 32.Kh3 Bf4 (better is 32...Rb4 33.Nd5 Rbb3 34.Nec7–+) 33.Nf4 (33.Nd4 Nd3 34.Kg2–+) 33...Rb4 (33...Rf4 34.Re5 Rb4 35.Rd5–+) 34.Re5 (34.Nd5 Nf3 35.Rc2 Ng5 36.Kg2–+) 34...Rbb3 (better is 34...Rf4 35.Rd5 Ke7 36.Re5 Kf6 37.Re6 Kf7–+) 35.Rd5 Kf6 36.Rd7 Rc3 (better is 36...Kf5!? 37.Rc7 h6–+) 37.Nd5 Kf5 38.Nc3 b6?? (better is 38...Rc3 39.Rh7 b6–+) 39.Rc7+– a5 40.Nd5 (better is 40.Nb5 Re3+–) 40...Ke5? (40...b5+–) 41.Nb6 a4 (41...Ra1 42.Rh7 Kd6 43.g4+–) 42.Ra7 (better is 42.Nc4 Kf5 43.Na3+–) 42...Ra2 (42...Ra1 43.Ra4 Ra4 44.Na4+–) 43.Ra4 (43.Rh7!? a3 44.Ra7 Kd4 45.Ra4 Kc5+–) 43...Ra4 44.Na4 Kf5 45.Kh4 h6 (45...Kg6 46.Nc5+–) 46.h3 Kg6 47.g4 Kg7 48.Kh5 Kh7 49.h4 White plans g5 49...Kg7 50.Nc5 Kh7 51.Ne4 White prepares the advance g5 51...Kg7 52.g5 hg5 53.hg5 Kh7 54.Nf6 Kg7 55.Ng4 Kh7 56.g6 Kg7 57.Nh6 Kh8 58.Nf5 Kg8 59.Kh6 White prepares g7 59...Kf8 60.Kh7 Ke8 61.g7 Kf7 62.g8Q Kf6 63.Nh6 Ke5 64.Qc4 Kf6 (64...Kd6 65.Nf7 Kd7 66.Qd5 Kc7 67.Qd6 Kb7 68.Nd8 Kc8 69.Ne6 Kb7 70.Nc5 Kc8 71.Qc6 Kd8 72.Qd7) 65.Qf4 (65.Qd5 Ke7 66.Ng8 Ke8 67.Qd6 Kf7 68.Qe7) 65...Ke7 66.Qf5 (66.Nf5 Ke6 67.Qe4 Kd7 68.Qd5 Kc8 69.Qf7 Kd8 70.Qe7 Kc8 71.Nd6 Kb8 72.Qb7) 66...Kd6+– 67.Kg6 Ke7 68.Qf6 (68.Qd5 Ke8 69.Nf7 Ke7 70.Qd6 Ke8 71.Qd8) 68...Kd7 69.Kf5 Kc7 70.Nf7 Kd7 (70...Kb7 71.Ke5 Kc7 72.Nd6 Kd7 73.Qe6 Kc7 74.Qe7 Kc6 75.Qb7 Kc5 76.Qb5) 71.Ne5 Kc7 72.Qc6 Kd8 (72...Kb8 73.Nd7 Ka7 74.Qc7 Ka6 75.Qb6) 73.Qd7 1–0. Fournier,Frederic (1825) – ajedrezmax1 (1655), Active, 2005.

2.Ba3 d4 3.b5 c6 4.bc6 Nc6=+ 5.Nf3 e5 6.Bf8 Kf8 7.d3 Nf6–/+ 8.Nfd2 g6 9.g3 Qd5 10.f3 Kg7 11.Bg2 Re8 12.e4 Qb5 13.Na3 Qb2 14.Nac4=+ Qc3 15.0–0 Nb4 16.Nb1?? Qc2 17.Qe1?? Nd3–+ 18.Qd2 Bh3 19.Qc2+– Bg2 20.Kg2 Rac8 21.Qd3 Rc4 22.Qc4 Re6 23.Qc7 d3 24.Qb7 Rd6 25.Nd2 Rb6 26.Qa7 Re6 27.Rfc1 Ne4 28.Ne4 Kh6 29.Rd1 f6 30.Qe3 g5 31.Rd3 Kh5 32.g4 Kh4 33.Qf2# (33.Qe1#) 1–0. pinecrest1981 – Smooth, Live Game Caissa's Web, 2005.

2.Ba3 g6 3.b5 Bg7 4.c3 c6 5.bc6 Nc6 6.Qb3 b6 7.e3 Be6 8.Bb5 Qc7 9.d4 Nf6 10.Nd2 a6 11.Bc6 (11.Bd3 0–0=+) 11...Qc6 12.Ngf3 Ra7 13.Ne5 Qc7 14.c4 (14.Rb1 b5=+) 14...0–0 15.cd5 Nd5 16.Rc1+= Qb7 17.Nc6 Raa8? 18.0–0?? Nf4?? 19.Ne7?? Qe7 20.Be7+/– Bb3 21.ef4 Rfe8 22.Rc7 Ba2=+ 23.Ra1 Bd5 24.Ra4 b5–+ 25.Rb4? Rac8 26.Rc8 Rc8 27.h4 h5 28.Nb3 Bb3 29.Rb3 Bd4 30.g3 Rc2 31.Rf3 a5 32.Kg2 b4 33.f5 b3 34.Rb3 Rf2 35.Kh3 Rf5 36.Rb8 Kg7 37.Bf8 Kh7 38.Ba3 Rf3 39.Bd6 a4 40.Rb4–/+ Bf2 41.Ra4 Rd3 42.Ra7?? Ba7–+ ½–½. pinecrest1981 – RJSRJS, Live Game Caissa's Web, 2004.

2.a4 a6 3.Nf3 Bg4 4.d4 Bf3 5.ef3 e6 6.c3 Nf6 7.a5 Nbd7 8.Bd3 g6 9.0–0 Bg7 10.Qe2 0–0 11.Qe3 c6 12.f4 Qb8 13.Re1 Re8 14.Qg3 Nh5 15.Qf3 f5 16.Ra2 b6 17.ab6 Qb6 18.Ra5 Qb7 19.Nd2 Bf6 20.Nb3 Bd8 21.Ra2 Nb6 22.Nc5 Qc8 23.Bf5! Ng7 24.Bd3 Nc4 25.Bc4 dc4 26.Qe2 Nf5 27.Qc4 1–0. Trkn – guest1136, ICC, 2003.

2.a4 Kd7 3.Nf3 f6 4.d4 Qe8 5.Bd2 e6 6.e3 Ke7 7.c4 c6 8.Qc2 Kf7 9.Bd3 g6 10.0–0 Kg7 11.Rd1 Ne7 12.e4 Na6 13.e5 f5 14.c5 Nc7 15.Bg5 h6 16.Bf6 Kh7 17.Bh8 Kh8 18.Nc3 Bg7 19.b5 cb5 20.ab5 a6 21.b6 Nb5 22.Nb5 Nc6 23.Nc7 Qf7 24.Na8 Nb4 25.Qd2 Nd3 26.Qd3 Bd7 27.Nc7 Bc6 28.Ra5 g5 29.Rda1 g4 30.Nd2 h5 31.R5a3 h4 32.R1a2 Bh6 33.Nb3 g3 34.fg3 hg3 35.Qg3 Qg7 36.Qg7 Kg7 37.Ne6 Kf7 38.Nd8 Ke7 39.Nc6 bc6 40.b7 (Unregistered player Black disconnected and forfeits, 1–0). guest569 – guest609, ICC, 2003.

2.a4 Nd7 3.Nf3 Ndf6 (3...e5 4.Bb2=+) 4.d4 Bf5 (4...Ne4 5.e3=+) 5.e3 e6 6.Ba3 Be7 7.Bd3 Ne4 8.0–0 Ngf6 9.Nh4 Bg6 10.Ng6 hg6 11.f3 Nd6 12.Qe2 Nf5 (12...Qd7 13.Nd2=) 13.Bf5+= gf5 14.Qb5 Qd7 15.Qb7 0–0 16.Qb5 (16.Qa6 Rfc8+/–) 16...Rfb8 (16...Qb5 17.ab5 Ne8 18.c4 dc4 19.Rc1=) 17.Qa5 (17.Qd7 Nd7 18.b5 Bf6+/–) 17...Qc6 (17...a6 18.Rf2 Ne8–/+) 18.b5+/– Qc2?? (better is 18...Qd7+/–) 19.Be7+– Qb2 20.Nc3 Qd2 21.Rfe1 c6 (21...Ne8 22.Qb4 Qd3 23.Rad1+–) 22.Bf6 (22.bc6 Ne8+–) 22...gf6 23.Rad1 (23.bc6?! Rb3 24.Rad1 Qc3 25.Qc3 Rc3+–) 23...Qc2 24.Re2 (24.bc6 Rb3 25.Nd5 ed5+–) 24...Qb3 25.bc6 Rc8 26.Qc5 Qb6 27.Qb6 ab6 28.Rc1 Rc6 29.Rec2 Rac8 30.g3 Rc4 (30...e5 31.Kf2+–) 31.h4 (31.f4 Kf8+–) 31...Kg7 32.Kf2 Kg6 (32...e5 33.f4 ed4 34.ed4 Rd4 35.Ke3+–) 33.Kg2 (33.Ke2!? Kh5+–) 33...e5 34.de5 (better is 34.Kf2+–) 34...fe5 35.h5 (better is 35.Rb2 Rc3 36.Rc3 Rc3 37.Rb6 Kg7 38.Rb5+–) 35...Kg5?? (better is 35...Kh5 36.Kf2 d4 37.ed4 ed4=) 36.f4+– ef4 (36...Kh5 37.fe5 Kg4 38.Kf2+–) 37.gf4 Kh5 (37...Kh6+–) 38.Kf3 Kg6 39.Rg2 Kf6 40.Nd5 Ke6 41.Rc4 Rc4 42.Nb6 Rb4 (42...Rc5+–) 43.a5 Kd6 44.Nc8 (better is 44.Ra2 Rb6 45.ab6 Kc6+–) 44...Kd7 45.Rg8 (45...Rb1 46.a6 Rf1 47.Ke2+–) 1–0. market (2160) – cojote (1750), GameColony.com, 2002.

2.a4 g6 3.Bb2 Nf6 4.Nf3 Bg7 5.e3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.a4).

2.a4 h6 3.Nf3 Nf6 4.Ba3 Nc6 5.b5 Na5 6.e3 b6 (6...e6 7.Bf8 Kf8 8.Nc3+=) 7.Nc3 Bg4 8.h3 Bh5 9.g4 Bg6 10.Ne5 e6 11.Ng6 fg6 12.Bd3 Ne4? (better is 12...Kf7+=) 13.Ne4+– (13.Be4?! de4 14.Ne4 Nc4 15.Bf8 Rf8+/–) 13...de4 (better is 13...Ba3 14.Ra3 Qe7+–) 14.Be4 Rb8 (14...Ba3 15.Bg6 Ke7 16.Ra3+–) 15.Bg6 Kd7 16.Bb2 Qg5 17.Be4 Bd6 18.f4 Qh4 19.Ke2 Nc4 (19...Qe7+–) 20.Bg7 Rhg8 21.Bc3 Rbf8 22.Qb1 Bf4 (22...Na5 23.Bh7+–) 23.Qb4 Nd6 (23...Ne3 24.de3 Bd6 25.Be1+–) 24.Bc6 Kc8 25.ef4 Qg3 (25...h5 26.a5 Rg4 27.hg4 Qg4 28.Bf3 Qf4 29.Qf4 Rf4 30.ab6 ab6 31.Rh5 Rf3 32.Kf3+–) 26.Be5 Nf7 27.Bc7 e5 (27...Nd8 28.Qd6 Rf7+–) 28.Qe7 Rd8 29.Qe6 1–0. Fritz11 – jumbo, casual, 2013.

2.b5 Qd7 3.e3= g6 4.Bb2 (4.Nc3 Nf6=) 4...Nf6 5.Bf6 (5.Nf3 Bg7=) 5...ef6 6.Nc3 Bh6 (6...Qd6 7.Nf3=) 7.Qf3+= a6 (better is 7...c6!?+=) 8.Nd5+– c6?? (better is 8...Qd8 9.Nf6 Kf8+/–) 9.Nf6 Kd8 (9...Ke7 10.Nd7 Bd7 11.Qe4 Kf8 12.ba6 Na6 13.Qd4+–) 10.Nd7 Bd7 11.Qf6 Kc7 12.b6! Kb6 13.Qd6 Rc8 (13...Bf8 14.Rb1 Ka5 15.Qc7 b6 16.Qb6 Ka4 17.Ne2 c5 18.Nc3 Ka3 19.Rb3) 14.Rb1 Ka7 15.Qc5 b6 16.Qb6 1–0. Taulien,Hans_Juergen (2350) – Henkel,Diana (2000), remoteschach.de, 2002.

2.c3 a5 3.d4 ab4 4.cb4 e5 5.de5 Bb4 6.Bd2 Bc5 7.Nc3 Ne7 8.Qb3 0–0 9.Bg5 c6 10.a4 Re8 11.e4 Qa5 12.0–0–0 d4 13.Nce2 Ng6 14.Nf3 Qa4 15.Qa4 Ra4 16.Ned4 Ne5 17.Bf4 Nf3 18.Nf3 Nd7 19.Bd3 Bf2 20.g4 Nf6 21.Ne5 Ng4 22.Ng4 Bg4 23.Rd2 Bd4 24.Bb1 Bc5 25.Kb2 Rea8 26.Bc2 Rb4 27.Bb3 Re4 28.Rf1 Bh3 29.Rf3 Bg4 30.Rf1 Be6 31.Bc2 Rb4 32.Kc3 Ra3 33.Bb3 Rab3 34.Kc2 Rb2 35.Kc3 R4b3# 0–1. Golem 0.1 – Ozwald 0.43, computer chess game, 2002.

2.c3 a6 3.a4 b6 4.Nf3 Bb7 5.d4 Nc6 (5...e6 6.Bf4=) 6.Bf4 f6 7.e3 e6 8.Bd3 Nge7 9.0–0 Qd7 10.Nbd2 Ng6 11.Bg3 0–0–0? (better is 11...Bd6+/–) 12.b5+– Nb8 13.a5 ab5 14.Qb3 c6 15.ab6 Ba6 (15...Bd6+–) 16.Bb8 Kb7 (16...Bb7 17.Bg3+–) 17.Ra6! (17...Ka6 18.Bc7+–) 1–0. Marre – nopa007, zagraj.pl, 2003.

2.c3 f6 3.a4 e5 4.a5 b6 5.e3 ba5 6.Qa4 Bd7 7.Qa5 Nc6 (better is 7...Ne7!?=) 8.Qd5+/– Nge7 9.Qf3 Bf5 10.Bb5 Bd7 11.Na3 a6 12.Bc4 a5 13.b5 Nb8?? (better is 13...Na7+/–) 14.Qa8+– c6 15.b6! Nd5 (15...Qb6 16.Rb1 Decoy) 16.Bd5 cd5 17.Qd5 Nc6 (17...Qb6 18.Nc4 Qc6 19.Qc6 Bc6 20.f3+– (20.Ra5?! Bg2 21.f3 Be7+–; 20.Na5?! Bg2 21.d4 Bh1+/–)) 18.Nc4 Bc5 (18...h5+–) 19.Qc5 Qa8 20.Nd6 Kf8 21.b7 Qb8 22.Nc4 Ne7 23.Ba3 Qb7 24.Qe7 Kg8 25.Qf8 1–0. maddoxdb – hogbendeciple, gameknot.com, 2013. (=1.c3 f6 2.b4 d5)

2.c3 Bg4 3.Bb2 Qd7 4.Nf3 d4 (4...Qd6 5.Na3=) 5.h3 (5.Ne5 dc3 A) 6.Nd7 cb2 7.Nc3 ba1R (7...ba1B?! 8.Nf8 Bc3 9.dc3–/+) 8.Qa1 Bd7–+; B) 6.Nc3+/–) 5...c6?? (better is 5...Bf3 6.gf3 Na6=) 6.hg4+– dc3 7.dc3 Na6 (7...Qg4 8.Nbd2+–) 8.Qd7 Kd7 9.Nbd2 Ke8 10.e3 Rd8 (10...Nc7 11.Bd3+–) 11.Ba6 ba6 12.0–0 (12.Ne5!? c5+–) 12...h5 13.gh5 Rh5 14.g3 Rh1 (14...Nf6 15.Rfd1+–) 15.Kg2 (better is 15.Kh1 a5 16.Nb3 ab4 17.cb4+–) 15...Rf1 16.Nf1 e5 (16...e6 17.Rb1+–) 17.N1d2 (better is 17.Ne5 Ne7+–) 17...Bb4 (17...a5 18.a3 Nf6+–) 18.cb4 a5 19.ba5 Nf6 (19...f6 20.Rc1+–) 20.a3 1–0. Fournier,Frederic (2005) – serginho7, Active Blind, 2008.

2.c3 h6 3.Nf3 Nf6 4.e3 a6 5.Be2 e6 6.0–0 Bd6 7.d4 0–0 8.a3 Ne4 9.c4 dc4 10.Bc4 Qf6 (10...b5!? 11.Bd3 Bb7=) 11.Bd3 Ng5 12.Ng5 Qg5 13.Nd2 Bd7 14.Ne4 Qe7 15.Qh5 f5 16.Nd6 cd6 17.Bb2 Qf6 18.Rac1 Nc6 19.Rc2 Qg5 (19...Ne7!?+=) 20.Qg5+/– hg5 21.Rfc1 Rac8 22.e4 f4 23.d5 Ne5 24.Be5 de5 25.Rc7 Rc7 26.Rc7 Bb5 (better is 26...Bc8!?+–) 27.Bb5 ab5 28.de6 Re8 29.Rb7 Re6 30.Rb5 Rc6 31.h3 Rc4 (31...Rc1 32.Kh2 Ra1 33.Ra5+–) 32.Re5 Rc3 33.Ra5 (33...Rb3 34.b5+– (< 34.Rg5 Ra3 35.Rg4 Rb3+–)) 1–0. Fritz 6 – NN, 2003.

2.c3 h6 3.Nf3 Nf6 4.e3 a6 5.Be2 e6 6.0–0 Bd6 7.d4 0–0 8.a3 Ne4 9.c4 dc4 10.Bc4 Qf6 (10...b5!? 11.Bd3 Bb7=) 11.Bd3 Ng5 12.Ng5 Qg5 13.Nd2 Bd7 14.Ne4 Qe7 15.Qh5 f5 16.Nd6 cd6 17.Bb2 Qf6 18.Rac1 Nc6 19.Rc2 Qg5 20.Qg5+/– hg5 21.Rfc1 Rac8 22.e4 f4 23.d5 Ne5 24.Be5 de5 25.Rc7 Rc7 26.Rc7 Bb5 27.Bb5 ab5 28.de6 Re8 29.Rb7 Re6 30.Rb5 Rc6 31.h3 Rc4 32.Re5 Rc3 33.Ra5 1–0. Fritz 6 – NN, 2003.

2.Nc3 c6 3.e3 e5 4.Nf3 f6 5.d4 e4–/+ (6.Nd2 Bb4–/+) 0–1. Alex Raistrick – guinguin, internet, 2007.

2.Nc3 Qd6 3.d4 Qb4–/+ 4.a3?? Qc3–+ 5.Bd2 Qd4 6.e3 Qh4 7.Nf3 Qf6 8.Bb5 c6 9.Bd3 e5 10.Bc3 d4 11.Bb2 Bc5 12.e4 b5 13.h4 b4 14.Qd2 Qg6 15.ab4 Qg2 16.Rh2 Qf3 17.bc5 Qg2 18.Rg2+– Bh3 19.Rg7 Nd7 20.Bc4 0–0–0 21.Ra7 h5 22.Bf7 Nh6 23.Bh5 Rhg8 24.Qh6 Nc5 25.Ra8# 1–0. davexr3i@ – Arrik, mySchach.de, 2004.

2.Nc3 e5 (--> 1.b4 e5 2.Nc3 d5).

2.Nc3 Be6 3.Nb5 a6 4.Nc3 g6 5.e3 Bg7 6.Nh3 h6 7.Qf3 Nf6 8.Na4? b6 9.Rb1 0–0 10.Nf4 Qd7 11.Bd3?? Qa4 12.Rb2 Nc6 13.Qg3 g5 14.Ne6 fe6 15.c3 Rac8 16.Rb3 Nb4?? 17.cb4–/+ Qa2?? 18.Ra3+– Ne4 19.Qh3 Qa3 20.Ba3 (20...Nf2 21.Qe6 Kh8 22.Qg6 Nd3 23.Qd3+–; 20.Qe6?! Kh8 21.Ba3 Nf2+–) 1–0. perozim – rvettorato, net–chess.com, 2004.

2.Nc3 Bf5 3.a3 a6 4.f4 e6 5.a4? Bb4–+ 6.g3 a5 7.h4 h6 8.Nb1 Be4 9.Rh3 Nf6 10.e3 Nbd7 11.g4 1–0. rfarman – phzzzt, net–chess.com, 2003.

2.Nc3 Bg4 3.h3 d4 4.Na4 Bf5 5.g4 b5?? 6.Nb2?? Be4=+ 7.Rh2 e5 8.f3 Bd5 9.Bg2. acordovajr – mascorona, net–chess.com, 2004.

2.Nc3 h6 3.d4 e6 4.e4 (better is 4.a3=) 4...Bb4–+ 5.Bd2 Be7 (5...de4!? 6.a3 Bc3 7.Bc3 Nf6–+) 6.ed5 a6 (better is 6...ed5!? 7.Nf3 Nf6–/+) 7.Bc4= Nf6 8.d6 (better is 8.de6 fe6 9.Nf3+=) 8...Bd6 9.Nf3 Ng4 10.–0 Qf6?? (10...Nc6 11.h3 Nf6–/+) 11.d5?? (better is 11.h3 Nh2 12.Nh2 Qd4 13.Bd3+–) 11...Qg6 (better is 11...Nh2!? 12.Nh2 Bh2 13.Kh2 Qh4 14.Kg1 Qc4–/+) 12.de6 f6 (better is 12...Be6 13.Be6 fe6+= (13...Qe6? 14.Re1 Ne5 15.Ne5 Be5 16.Qh5+–)) 13.Bf4?? (better is 13.Nd5 Ne5 14.Ne5 fe5 15.Bb4+/–) 13...Bf4–+ 14.Qd5 h5 15.Rad1 0–0?? 16.e7+– Kh8 17.ef8Q Kh7 18.Qfg8 Kh6 19.Bd3 h4 20.Bg6 Kg6 21.Nh4 Kh6 22.Qh8 1–0. interloper – huskerbacker, ChessWorld.net, 2012.

2.d3 b5 3.Nf3 f5 4.Bb2 e6= 5.a3 Bd6?? 6.Nbd2 (6...Nf6 7.e4+=; better is 6.Bg7 a5 7.ba5+–) 1–0. dugmak – arian1230, ChessWorld.net, 2005.

2.d3 d4 3.Qd2 e5 4.e4 Nc6 5.Nf3 Bb4–+ 6.c3 Ba5 7.Ba3 dc3 8.Nc3 Nd4 9.Ng5? b5 10.Qe3?? Nc2 11.Ke2 Bc3 12.Qf3 f6 13.Qh5 g6 14.Rc1 gh5 15.Rc2 a5 16.Rc3 b4 (17.Rc6 Bd7–+; 16...fg5 17.Bc1 b4 18.Rc5–+) 0–1. xs – cacook, net–chess.com, 2005.

2.d3 Bf5 3.Nc3 Nf6 4.f3 d4 5.Nb5 (better is 5.Ne4!?–/+) 5...e5–+ 6.c3 a6 7.Qa4 (better is 7.e4 Be6 8.Na3 dc3 9.Nc2–+) 7...Qd7?? (7...Bd7 8.c4 Bc6–+ (8...ab5?! 9.Qa8 bc4 10.a3=)) 8.Qb3 (better is 8.Nc7 Kd8 9.Qd7 Nbd7 10.Na8 dc3 11.g4+–) 8...Qb5 9.a4 Qd7 10.e4 Be6 11.Qd1 (11.c4 Nc6 12.Bd2 Bd6–+) 11...dc3 12.Qc2 Bb4 13.Ne2 a5 14.g4 (14.Rb1 Nc6–+) 14...Nc6 15.Bh3 (15.g5 Nh5 16.Be3 Rd8–+) 15...Nd4 (better is 15...Rd8 16.Bf1 Qd3 17.Qd3 Rd3–+) 16.Qb1 (16.Nd4 Qd4 17.Rb1 Rd8–+) 16...Nf3 (better is 16...c2 17.Qb4 Nf3 18.Kf2 ab4 19.g5 Bh3 20.gf6 gf6 21.Kf3 Qg4 22.Ke3 Qg5 23.Kf3 Qg2 24.Ke3 Qh1 25.Bb2–+) 17.Kf1 (17.Kf2 Nd2 18.Bd2 cd2–+) 17...Bg4 18.Bg2 Nd2 19.Bd2 cd2 20.h3 Bh5 21.Kf2 0–0 22.Ng3 Bg6 23.Qa2 Qd3 24.Nf1 d1Q 25.Rd1–+ Bc5 26.Ne3 Qe3 27.Kf1 Ne4 28.Be4–+ Be4 29.Qe2 Qf3 30.Qf3 Bf3 31.Ke1 Bh1 32.Kd2 Rad8 33.Kc1 Be3 34.Kc2 Be4 35.Kb3 Rd1 0–1. jmcauley (1800) – birdmove (2240), net–chess.com, 2013.

2.d3 Bg4 3.h3 Bh5 4.g4 Bg6 5.f4 e6–/+ 6.a3 Qh4 7.Kd2 Qf6 8.c3 Qf4 9.Kc2 Qf6 10.Bf4?? Qf4–+ 11.Nf3 Qd6 12.Kb2 Be7 13.Nd4 a6 14.Nd2 Nc6 15.Qa4 Nf6 16.Nb5 Qd7 17.c4 0–0 18.Nf3 ab5 19.Qb5 dc4 (20.dc4 Ne4–+) 0–1. gummi57 – willow27, ChessWorld.net, 2005.

2.d3 h6 3.Bb2 d4 4.Nf3= e5 5.a3 Bd6 6.Nbd2 b5 7.Ne4 Nc6 8.c3 Bf5 9.Nd6 Qd6 10.h3 Nge7 11.g4 dc3 12.Bc3 Bd7 13.Bg2 Nd5 14.Qd2 Nf4 15.Rg1 Rd8 16.Qe3 Ng6 17.Rd1 0–0 18.Nd2 f5 19.Bc6 f4 20.Qa7+= Bc6 21.Bb2 f3=+ 22.Qe3 fe2–+ 23.Ke2? Nf4 24.Kf1 Qd3 25.Qd3 Rd3 26.Be5–/+ Nh3 27.Bc7?? Rf2 28.Ke1 Re3# 0–1. nimmie – patman007, ChessWorld.net, 2005.

2.d4 f5 3.Bf4 Nf6 4.f3 e6 5.Nc3? (better is 5.c3!?+=) 5...Bb4–+ 6.Bd2 Bc3 (6...Nh5!? 7.g3–+) 7.Bc3–/+ Nbd7 8.g4? (better is 8.Nh3!?–/+) 8...fg4–+ 9.fg4?? (9.Qd3 c5–+) 9...Ng4 (better is 9...Ne4 10.Nf3 Nc3–+) 10.h4 0–0 11.Nf3 Ndf6 12.Bh3 e5! 13.de5 (13.de5 Ne4 Combination; 13.Ne5 Ne5 Combination) 13...Ne4 14.Bg4 Bg4 15.Qd4 Nc3 (better is 15...Bf3!? 16.ef3 Rf3 17.Ba5–+) 16.Qc3 Bf3 17.ef3 Qe7 18.0–0–0 c5 (better is 18...c6!?–+) 19.Rd5+= b6 20.Rg1 Qh4 21.e6 Qf6 22.Qf6 Rf6 23.Re1? (better is 23.e7!? Re8 24.Rd8+=) 23...Rf3 24.e7 (24.Rd7!?–/+) 24...Re8–+ 25.Rd8 Kf7 26.Re8? (26.Rd7–+) 26...Ke8 27.Kd2 b5 (27...Rf7 28.a3–+) 28.Ke2 (28.Re5 a6 29.Rg5 Rf2 30.Kc3 Ke7 31.Rg7 Rf7–+) 28...Rf7 29.Rh1 h6 30.Ke3 Re7 31.Kf4 Re2 32.Rg1 Kf7 33.Rc1 Ke6 34.a3 g5 35.Kg4 Rh2 36.Re1 Kd5 37.c3 a5 38.Re3 b4 39.cb4 cb4 40.ab4 ab4 41.Kf5 Kd4 42.Re4 Kc3 43.Ke5 b3 44.Kd5 b2 45.Rc4 (45.Rc4 Kb3 46.Rc6–+). pikelet – delightful_porridge, ChessWorld.net, 2013.

2.d4 g5 3.b5 (3.Bg5 Qd6+/–) 3...Bd7 4.a4 h6 5.f3 Bg7 6.e3 c5 7.bc6 Bc6 8.Bb2 Nd7 9.g4 (9.c4 dc4 10.Nd2 Qa5=) 9...Nb6 10.a5 Na4 11.Bc3 Nf6 12.Qc1 (12.h4 Nc3 13.Nc3 Qc7+=) 12...h5–/+ 13.Bb4 (better is 13.gh5!? Nc3 14.Nc3 Nh5 15.Nge2–/+) 13...hg4–+ 14.Nc3 (14.Qd2 Nb2–+) 14...Nc3 15.Bc3 Qc7 16.fg4?? (16.Qd2 gf3 17.Nf3 g4–+) 16...Ng4 (better is 16...Rh2 17.Rh2 Qh2 18.Nh3 Qg3 19.Kd1 Qg4 20.Ke1 Qg3 21.Kd1–+) 17.Bh3 (17.Nf3 Rh2 18.Rh2 Qg3 19.Kd2 Nh2 (19...Qf3?! 20.Rh3 Qf2 21.Be2–/+) 20.Nh2 Qh2 21.Ke1 Qg3 22.Kd2 Qf2 23.Be2 Bb5–+) 17...Nf6 (worse is 17...Nh2 18.Kd1 Nf1 19.Be1–+) 18.Qd1 (18.a6 Bb5 19.Ba5 b6–+) 18...Rh4 (better is 18...g4 19.Bg2 Rh2 20.Rh2 Qh2–+) 19.Bf1 (19.Qf3 Bb5 20.Bd2 Ne4–+) 19...Re4 (better is 19...Rh2 20.Rh2 Qh2–+) 20.Qd3 (20.Be2 Re3 21.Bd2 Re4–+) 20...Ng4 21.Bg2 Ne3 22.Be4+– Nc4 23.Ne2 Nd6 24.Bf3 Ne4 25.Be4 de4 26.Qe3 Bf6 27.h4! gh4 28.a6 ba6 29.Qh6?? e3? 30.Qe3?? Bh1–+ 31.Qg1? Bf3 32.Ba5 Qc2 33.Qg8 Kd7 34.Ra2 Qa2 0–1. Thrustnicely – Phil_Ottis, playchess.de, 2004. (=1.d4 d5 2.b4 g5)

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

2.e3 c5 3.Bb2 (3.bc5 Qa5+=) 3...Nc6 (3...cb4 4.Nf3+=) 4.d4 (4.b5!? Na5 5.Nf3=) 4...cd4 (4...cb4 5.Bd3–/+) 5.ed4 (5.b5 Qa5 6.c3 de3 7.fe3 Nb8 8.Qd5 Nf6+=) 5...Nf6 (5...Nb4 6.Nf3–/+) 6.c3 e5 (6...Bf5 7.Ne2+=) 7.de5 (7.b5!? Nb8 8.de5+=) 7...Ne5+= 8.Bb5 Bd7 9.Bd7 Qd7 10.Nf3 Bd6 11.Ne5 Be5 12.0–0 0–0 13.g3 (13.f4 Bc7 14.c4 dc4 15.Bf6 Qd1 16.Rd1 gf6 17.Na3+=) 13...d4 (13...Rfe8!?–/+) 14.cd4 (14.f4 Bd6=) 14...Bc7 (14...Rad8 15.a3+=) 15.Qc1 (15.Qf3 Bb6+=) 15...Bb6 16.Re1 (16.Rd1 Rac8 17.Qd2 Rfe8=) 16...Bd4+= 17.Bd4 Qd4 18.Rd1?? (better is 18.Qc3 Qg4 19.f3+=) 18...Qa1–+ 19.Kg2 (19.Qd2 Rac8–+) 19...Qa2 20.Nc3 (20.Qa3 Qc4–+) 20...Qe6 (20...Qb3 21.b5–+) 21.Re1 (21.Qd2 a5 22.ba5 Ra5–+) 21...Qb6 (21...Qb3 22.Qe3–+) 22.Na2 (22.Qf4 Rac8 23.Rc1 Qc6 24.f3 Rfe8–+) 22...Ng4 (better is 22...a5–+) 23.h3 (23.Qf4 Qc6 24.Qe4–+) 23...Qf2 24.Kh1 Qh2 0–1. Wilke,Felix – Imas,Denisa, Schleswig Holstein–ch U12, 2000.

2.e3 Bd7 3.Bb2 e6 (--> 1.b4 d5 2.Bb2 e6 3.e3 Bd7).

2.e3 Be6 3.d4 Nf6 4.c4 (4.Bd3!?=) 4...dc4+= 5.Nc3 Qd6 6.a3 a6 (6...a5 7.b5+=) 7.Nf3 Ng4 (7...b5 8.e4 Qd8 9.Be2=) 8.Qc2 (8.h3 Nh6+=) 8...g6 (8...b5!?=) 9.h3+= Nf6 10.Bb2 (10.e4 Qd8+/–) 10...Bg7 (10...b5 11.d5 Bc8 12.Ne4+=) 11.Be2 (11.e4!? Qb6 12.Na4+/–) 11...b5= 12.Rd1 0–0 13.e4 Nfd7?? (13...Qd8 14.d5 Bd7 15.Nd4=) 14.e5?? (14.d5 c5+–) 14...Qc6?? (14...Qb6 15.Ng5+=) 15.0–0?? (better is 15.d5 Bd5 16.Nd5+– (worse is 16.Rd5 e6 17.Rd1 Be5+–)) 15...a5?? (better is 15...Nb6+=) 16.d5+– Bd5 17.Nd5 Re8 18.Ne3 e6 19.Nd4 Qb7 20.Bf3 Qa7?? 21.Ba8 Qa8 22.Nb5 Ne5 23.Nc7 Qc6 24.Ne8 Qe8 25.Nc4 Nc4 26.Bg7 Kg7 27.Qc4 ab4 28.ab4 Qa4 29.Qc3 (29.Qc3 Kh6 30.Rd4+–) 1–0. jplayer (2020) – luciole (2130), net–chess.com, 2013.

2.e3 f6 3.d4= Be6 4.Nc3 a6 (4...Bf5 5.a3=) 5.Nh3 (5.a3 Bf7+=) 5...Nh6 6.Nf4 Qd6 (better is 6...Bf7!? 7.Nd3 Nc6=) 7.Ne6+/– Qe6 8.Qh5 Qf7 9.Qd5 c6 10.Qf7 Nf7 11.Bc4 Nd6 12.Be6 g6 13.e4 Nd7 14.Bf4 Bg7 15.0–0–0 Nc4?? (better is 15...Rd8+–) 16.Bc4 f5 (16...e5 17.Be3+–) 17.Be6 Nb6 (17...Nf8 18.ef5 h5 19.Bc7+–) 18.Bc7 Nc8 19.Rhe1 (19.ef5 gf5 20.Na4 a5+–) 19...Nd6 20.Bd6 ed6 21.ef5 gf5 22.Bf5 Kd8 23.Re6 Kc7 (23...d5+–) 24.Re7 Kb6 25.Rg7 Rhf8 (25...Rag8 26.Rg8 Rg8 27.g4+–) 26.Bh7 Rf2 27.Ne4 Re2 28.Nd6 Rb8 29.Bf5 Rf2 30.h4 Rf8 31.Rb7 1–0. fajgo – osmanli, Internet, 2002.

2.e3 g5 3.Bb5 c6 4.Bb2 Nf6 5.c3?? Bg4 6.Nf3?? cb5–+ 7.h3 Bh5 8.Ng5 Bd1 9.Kd1 Bh6 10.Nf3 Ne4 11.Ke1 Bg7 12.Ng5 Ng5 13.h4 Ne4 14.d3 Nd6 15.a4 0–0 16.Nd2 Nc6 17.ab5 Nb5 18.h5 a5 19.Nb1 ab4 20.Rh4 bc3 21.Rg4 cb2 22.Nc3 ba1Q 23.Nd1 Nc3 24.Kd2 Qd1# 0–1. preynolds – mooney, net–chess.com, 2006.

2.e3 Nh6 3.Bb2 e6 (--> 1.b4 d5 2.Bb2 e6 3.e3 Nh6).

2.e4 d4 3.c3 d3 (3...e5!?=) 4.Qf3+= h5 5.Bd3 Nf6 6.Bb2 Bg4 7.Qg3 Nc6 8.a4 a6 9.h3 Be6 10.Na3 Qd6 11.Qe3 Ne5 12.Be2 Qc6 (12...Ng6+/–) 13.b5?? (better is 13.d4 Ng6 14.d5 Nd5 15.ed5 Bd5 16.b5+–) 13...ab5?? (better is 13...Qe4 14.Nf3 Qe3 15.de3 Nf3 16.Bf3 0–0–0=) 14.Bb5+– (14.ab5?! Qe4 15.Nf3 Ng6+=) 14...Qb5 (14...Ra4 15.Bc6 Nc6 16.d4+–) 15.ab5 Bc4 16.Nc2 Bd3?? 17.Nb4 Bb5 18.Ra8 Kd7 19.Qc5 Nd3 20.Kd1 Nc5 21.d4?? Nce4 22.Ke1+= e6 23.Rb8 c5?? 24.Rb7+– Kd6 25.Rb6 Bc6?? 26.Rc6 Kd7 27.d5! cb4 28.Rb6?? ed5?? 29.cb4+= Be7? 30.Bf6 gf6 31.Nf3 f5? 32.Rb7+– Ke6 33.Ke2 d4? 34.Nd4 Ke5 35.Nc6 Kf6 36.Ne7 Nc3 37.Kf3 Re8 38.Re1 Kg5 39.Rc7 Nb5 40.Rb7 Nd6?? 41.Rb6 Nc8 42.h4! Kh4 43.Nf5 1–0. Eries – wee harv, ChessWorld.net, 2012.

2.f3 Nf6 3.d4 e6 4.c3 Nbd7 5.Bg5 Nb6 6.Nd2 Be7 7.e4 a5 8.b5 0–0 9.e5 Nfd7 10.Be7 Qe7 11.f4 f6 12.Bd3 f5 13.Ngf3 c5 14.0–0 cd4 15.cd4 Re8 16.Rc1 Nf8 17.Qc2 Rd8 18.Qc5 Qc5 19.dc5 Nbd7 20.c6 bc6 21.bc6 Nb6 22.c7 Rd7 23.Rb1 Rc7 24.Rb6 Bd7 25.Nd4 Rac8 26.Ba6 Ra8 27.Rfb1 Bc8 28.Be2 Bd7 29.Kf2 h6 30.h3 Kh7 31.N2f3 Rac8 32.Ba6 Ra8 33.g4 fg4 34.hg4 Rca7 35.Bb7 Rb8 36.Bd5! Rb6 37.Be4 Kg8 38.Rb6 Rc7 39.f5 ef5 40.gf5 Rc4 41.Bd5 Kh7 42.Bc4 1–0. orane (2195) – M8IN3, Live Game Caissa's Web, 2004.

2.f4 a6 3.Bb2 Bf5 4.e3 Nc6 5.a3 Qd6 (5...d4 6.Bd3 Bd3 7.cd3=) 6.Nf3= h6 7.Bd3 Be4 8.Nc3 Bd3 9.cd3 Nf6 10.0–0 e5 (better is 10...e6!?+=) 11.b5+/– ab5 12.Nb5 Qd7 13.fe5 Nh7 14.Qb3 Na5 (14...Rd8!?+/–) 15.Qd5!+– Qd5 (better is 15...c6 16.Qd7 Kd7 17.e6 Kc8+–) 16.Nc7 Kd7 (16...Kd8 17.Nd5 Nb3 18.Ra2+–) 17.Nd5 Nb3 (17...Bc5 18.Rac1 Rac8+–) 18.Nb6 (18.Nb6 Kc6 19.Na8+–) 1–0. Janek – Tyra, internet, 2016.

2.f4 b5 3.a4+= Bb7 4.ab5 Nf6 5.Nf3 e6 6.Ba3 Nbd7 (6...a6!?=) 7.e3+= Nb6 (7...Bd6 8.Nc3+=) 8.Nc3+/– Bd6 9.Bd3 0–0 10.0–0 Re8 11.Qe2 e5 (11...Qe7!?+/–) 12.fe5+– Be5 13.Ne5 Re5 14.Rf4 Qe7 15.Bb2 Rg5 (15...Nh5 16.Rf2 d4 17.Nd1+–) 16.h4 Rg3 17.Kh2 d4 (17...Rg6 18.Bg6 fg6 19.d3+–) 18.Kg3 dc3 19.Bc3 Nbd5 20.Bf6 Nf6 21.c3 Be4 (21...g6 22.Kh2+–) 22.Be4 Ne4 23.Kh2 g6 (23...h6 24.Qf3 Re8 25.Ra7+–) 24.Qd3 Nf6 25.Qd4 Nh5 26.Re4 Qd8 (26...Qf8+–) 27.Ra7 Rc8 (27...Nf6 28.Ra8 Qa8 29.Re7+–) 28.Qd8 Rd8 29.Rc7 Rd2 (29...Nf6 30.Ree7 Rb8 31.Rf7 Ne8+–) 30.b6 (30.b6 Rd6 31.Re8 Kg7 32.b7+–) 1–0. b4_player – gurd, internet, 2014.

2.f4 b6 3.Nf3 (3.a3 Nf6=) 3...a5 (3...Qd6!?+=) 4.b5= Bg4 5.Nc3 Qd6 6.Ne5 Be6 7.a4 f6 8.Ba3 Qd8 9.Nf3 c5 (9...d4!? 10.Na2 c5=) 10.bc6!+/– Nc6 11.e3 Nb4 (11...Bg4!?+/–) 12.Nd4 Bd7 13.f5 e5? (better is 13...g6+–) 14.fe6 Bc8 (14...Bc6 15.Bb4 ab4 16.Nc6 Qd6+–) 15.Qh5 g6 16.Bb5 Ke7 17.Nc6 Ke6 18.Nd8 Ke7 (18...Kd6 19.Qd5 Kc7 20.Bb4 Ra7 21.Qc6 Kd8 22.Qb6 Rc7 23.Nd5 Bd6 24.Qd6 Bd7 25.Qc7 Ke8 26.Qd7) 19.Qd5 Be6 (19...Rb8 20.Nc6 Ke8 21.Nb4 Bd7 22.Qd7) 20.Qe6 Kd8 21.Qd7 1–0. pereira – anony, 2014.

2.f4 c5 3.bc5= e6 4.d4 Nc6 5.Nf3 f5 (5...b6!? 6.e3 bc5=) 6.Nc3+/– Nf6 7.e3 Be7 8.Bd3 0–0 9.0–0 b6 10.Bb5 Bb7 11.Ng5 (11.Ba3 Nd7 12.Rb1 Rb8+=) 11...Qc8+= 12.Ba3 Ng4 (12...h6 13.Nf3+=) 13.Qd2+/– Bg5 (13...h6!? 14.Nf3 Rb8+/–) 14.fg5+– Qd8?? (better is 14...bc5 15.Bc5 Qc7+–) 15.h3 Qg5 16.hg4 Qg4 (16...fg4 17.Rf8 Rf8 18.cb6+–) 17.cb6 Rf6 18.ba7 Rh6 (18...Ra7 19.Bc5 Ra8 20.Rab1+–) 19.Bc6 (19.Bc6 Bc6 20.Bc5+–) 1–0. pierred – anony, internet, 2014.

2.f4 Be6 3.Nf3 Nd7 4.Nc3 Nb6 5.e3 Nf6 6.Nd4 Ne4?? (better is 6...Bg4 7.Be2 Be2 8.Qe2 e6=) 7.Ne6 fe6 8.Qh5 g6 9.Qe5 Rg8 10.Qe6 Nc3? (better is 10...Nf6+/–) 11.Qg8+– (11.dc3?! Rh8+/–) 11...Ne4 12.Qh7 Qd6 13.Bb5 c6 14.Be2 0–0–0 15.Rb1 Nc4 16.Rb3 Nb6 17.d3 1–0. b4_player – albert, internet, 2013.

2.f4 f5 3.Nf3 Nf6 4.Nc3 Be6 (4...Qd6!?=) 5.e3+= Qd7 (5...Bf7 6.a3+=) 6.Ne5 Qd6 7.Nb5 Qb6 8.a4 a5 9.c4 c6 10.Nd4 Bg8 11.c5 Qd8 (11...Qc7!?+/–) 12.b5 Nbd7 (better is 12...Nfd7!? 13.Nf5 e6 14.Nd6 Bd6 15.cd6 Ne5 16.fe5 Qh4 17.g3 Qe4 18.Qh5 Bf7+/–) 13.bc6+– (13.Nf5?! Ne5 14.fe5 Ne4+/–) 13...Ne5? (13...bc6 14.Ndc6 Qc7+–) 14.cb7 Ra7 15.c6 Qc7 (15...Ned7 16.Rb1 Nb8+–) 16.fe5 Ne4 (16...Rb7 17.cb7 Nd7+–) 17.Qb3 e6 18.b8Q (18.b8Q Kf7 19.Qc7 Rc7 20.Qb6+–) 1–0. b4_player – mikrus, casual, 2013.

2.f4 g5 3.fg5 h6 4.gh6 Nh6 5.Bb2 f6 6.d3 Nc6 7.e4 de4 8.de4 Bd7?? (8...Qd1!? 9.Kd1 Ng4–/+) 9.Nd2 (better is 9.b5!? Bg4 10.Qd8 Nd8 11.e5+/–) 9...Nb4= 10.Qh5 Nf7 11.0–0–0?? (better is 11.Qd1+=) 11...Rh5–+ 12.Be2 Na2 (better is 12...Rc5!? 13.Kb1–+) 13.Kb1 Ra5 14.Nc4 c5 15.Na5 Qa5 16.g4 Be6 17.Nf3 Qb4 18.c3 Nc3 19.Ka1 Ne2 20.h4 Bb3 21.h5 Bd1 22.Rd1 Qa4 23.Kb1 Qd1 24.Ka2 Qa4 25.Kb1 Rd8 26.h6 Rd1 27.Bc1 Qb3 28.Ka1 Rc1 0–1. Natalia_James – Thrustnicely, playchess.de, 2004. (=1.f4 d5 2.b4 g5)

2.f4 h5 3.Nf3 e6 4.a3 f5 5.Nc3 Be7 6.e3 g5 7.fg5 Bg5 8.Bb2 Rh7 9.Be2 Bf6 10.0–0 Qe7 11.Nd4 Bd4 12.ed4 (12.Bh5?! Kd7 13.ed4 Qh4+=) 12...Qf7 (12...Nf6!?+/–) 13.Qe1 Bd7? (13...Qe7+–) 14.Nd5! ed5 (14...Kd8 15.Nf4 Nf6+–) 15.Bh5 (15.Bh5 Kd8 16.Bf7 Rf7 17.Qh4 Kc8 18.Qg5+–) 1–0. b4_player – hello, casual, 2013.

2.g3 c6 3.Bg2 Qb6 4.c3 e5 5.Qb3 Nf6 6.Nf3 Bd6 7.d3 Bf5 8.e4 de4 9.Ng5 0–0 10.Be3 Qc7 11.de4 Bd7 12.f3 h6 13.Nh3 a5 14.ba5 Qc8 (worse is 14...Ra5 15.Bb6 Qc8 16.Ba5 Bh3 17.Bh3 Qh3 18.Nd2+/– (worse is 18.Qb7 Ne4 19.fe4 Qg2=)) 15.Nf2 Ra5 16.0–0 Be6 17.Qc2 b5 18.Rd1 Be7 19.Nd2 Qa6 20.Nb3 Ra3 21.Qb1 (21.Nc5 Ra2 22.Ra2 Qa2 23.Qa2 Ba2+=) 21...Nbd7–/+ 22.Bc1 Ra4 23.Bh3 Bh3 24.Nh3 Ra8 25.Rd2 c5 26.Rc2 c4 27.Nd2 Nc5 (better is 27...b4!? 28.Kg2 b3 29.Rb2–+) 28.Rb2? (better is 28.Nf2!?–/+) 28…Nd3–+ 0–1. Baier,Guenter – Piastowski,Kurt, WT/M/407 corr ICCF, 1987. (=1.g3 d5 2.b4 c6)

2.g4 e5 3.Bb2 d4 (3...Bg4 4.Be5 f6 5.Bg3 Bb4 6.c3–/+) 4.a4 (4.Nf3 f6–/+) 4...Bb4–+ 5.c3 (5.Bg2 Nf6 (5...Bg4?! 6.c3=+) 6.Nf3 Ng4–+ (6...Bg4?! 7.Ne5 c6 8.Ng4 Ng4 9.h3–/+)) 5...dc3 6.dc3 (6.Bc3 Bc3 7.Nc3 Bg4–+) 6...Qd1 7.Kd1 Bd6 (7...Bc5 8.f3–+) 8.e4 (Better is 8.Bg2–+) 8...Bg4 9.f3 Be6 10.f4 (10.Nd2 Nf6–+) 10...ef4 11.c4 Nf6 12.Nf3? Bc5 13.Ng5 Nc6 14.Ne6 fe6 15.Nc3 0–0–0 16.Kc2 Bd4 17.Bh3 Rhe8 18.Rhf1 g5 19.Nd5 Ne4 20.Bd4 Nd4 21.Kd3 Kb8 22.Kd4 ed5 23.Rfb1 dc4 24.Kc4 Nd2 25.Kc5 Nb1 26.Rb1–+ Re5 27.Kc4 f3 28.a5 a6 29.Kc3 f2 30.Kc4 h5 31.Bg2 b5 32.Kc3 Rf8 33.h4 g4 34.Bc6 Rc5 0–1. couper2 – olubeck, Live Game Caissa's Web, 2004.

2.h3 d4 3.Bb2 e5 4.a3 Bd6 (4...c5 5.c3=+) 5.e3 de3 6.de3 Bf5 (6...Nf6 7.Nf3 e4 8.Nd4=+) 7.Bd3 Nh6 (7...Bd3 8.cd3 Ne7 9.Nf3=) 8.Bf5 Nf5 9.e4 Ne7 10.Nf3 Nd7 11.0–0 f6 12.c4+= b6 13.Nc3 a6 14.Nd5 0–0 15.Qb3 c5 16.b5 Nd5= 17.ed5 a5 18.a4 Re8 19.Nd2 Nf8 20.Ne4 Ng6 21.Bc1 Ra7 22.Qf3+= Rf7 23.Qf5 Ne7 24.Qe6 Nc8= 25.Qf5 g6 26.Qf3+= Bf8 27.Bd2 Nd6 28.Nd6 Qd6 29.Rfe1 h6 30.Re2 Kh7 31.Rae1 Rfe7 32.Qg3 f5 33.Bc3 Bg7 34.Qh2 g5 35.h4 g4 36.f3 gf3= 37.gf3 Bf6 38.Kh1 f4 39.Rg2 Rg7 40.Rg7 Bg7 41.Rg1 Re7 42.Qh3 Qf6 43.h5 Bf8 44.Rg6+– Qf7 45.Qg4 Rb7 46.Re6 Bg7 47.Qg6 Qg6 48.hg6 Kg8 49.Be5 Be5 50.Re5 Kg7 51.Re6 h5 52.d6 Rd7?? 53.Kh2 Kh6+/– 54.Kh3 Kg5 55.Re7 Rd6+/– 56.g7 Rg6 57.Rb7 Kh6?? 58.g8Q Rg8+/– 59.Rb6 Kh7 60.Rc6 1–0. jones662 – darkdwarf, Live Game Caissa's Web, 2004.

2.Nh3 e5 3.a4? (better is 3.a3!?–/+) 3...Bb4–+ 4.Ba3 (4.c3 Bf8–+) 4...Nc6 (better is 4...a5–+) 5.Ng5?? the final mistake, not that it matters anymore (better is 5.Ng1–/+) 5...Qg5–+ 6.h4 (6.Bb4 hardly improves anything 6...Nb4 7.c3 Nc6–+) 6...Qe7 7.Rg1 (7.Bb4 doesn't get the cat off the tree 7...Qb4 8.e3 a6–+) 7...Nf6 (better is 7...Ba3!? and Black can already relax 8.Na3 Qh4 9.Nb5–+) 8.Rh1 (8.g3 doesn't improve anything 8...Ba3 9.Ra3 Qd6–+) 8...Bd7 (better is 8...d4 might be the shorter path 9.Bb4 Nb4 10.Na3–+) 9.c4 (9.h5 does not help much 9...Ba3 10.Ra3 d4–+) 9...dc4 10.Rh3 (10.e3 there is nothing else anyway 10...Na5 11.Qc2–+) 10...Bh3 11.gh3 Ba3 (better is 11...Ne4!? keeps an even firmer grip 12.e3 Qf6 13.Qe2–+) 12.Na3 0–0 (better is 12...Ne4 and Black takes home the point 13.Bg2 Qh4 14.Be4 Qe4 15.f3 Qh4 16.Kf1–+) 13.Nc4 Ne4 14.Bg2 (14.d3 does not improve anything 14...Na5! Mate attack 15.de4 Nc4–+) 14...f5 (14...Nf2 makes it even easier for Black 15.Kf2 Qh4 16.Kf1 Qc4 17.d3 Qf4 18.Kg1 Qe3 19.Kf1–+) 15.Qc2 (15.d3 is not much help 15...Qh4 16.de4 fe4 17.Qd5 Kh8–+) 15...Qh4 16.Ra3 Qf2 17.Kd1 Qg1 18.Bf1 Qf1 0–1. Kumnick,Michelle – Hill,Steven, Adelaide University op, 2002.

2.Nh3 Bh3 3.gh3 e6 4.Bg2 Bb4–+ 5.c3 Ba5 6.Qa4 Nc6 0–1. commander – bienopia (2100), net–chess.com, 2009.

2.a3 a6

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

3.Nc3 Bf5 4.f3 Nf6 5.d3 e5 6.Be3?? (better is 6.e4 Be6 7.ed5 Nd5 8.Nd5 Qd5 9.Be3+=) 6...d4–+ 7.Bd2 dc3 8.Bc3 Nc6 9.Qc1 Bd6 10.Qg5 Bg6 11.e4 h6 12.Qe3 0–0 13.Ne2 Nd7 14.g4 Qg5 (14...a5 15.b5 Bc5 16.Qd2 Qh4 17.Kd1–+) 15.Qf2 (15.Qg5 hg5 16.d4 ed4 17.Nd4 Nce5–+) 15...Na7 16.Bh3 Nb5 0–1. horsehold – Mr.Oldenslo, ChessWorld.net, 2013.

3.e3 Nf6 4.Bb2 Bf5 5.c4 c6 6.Nf3 e6 7.c5 Nbd7 8.d4 Qe7 9.Nbd2 Ne4 10.Ne4 Be4 11.Bd3 Bd3 12.Qd3 g6 13.0–0 Bg7 14.a4 e5 (14...Qf6 15.Rfb1=) 15.de5 Ne5 16.Ne5 Be5 17.Be5 Qe5 18.Qd4 Qd4 19.ed4 Kd7 20.Rfe1 Rhe8 21.Kf1 Re1 22.Ke1 a5 23.Rb1 ab4 24.Rb4 Kc7 25.Ke2 Ra6 26.Kd2 Ra7 27.f3 Ra6 28.Kd3 Ra8 29.Kd2 h5 30.h3 h4 31.g4? (31.Ke3 Re8 32.Kf2 g5=) 31...g5?? (better is 31...hg3 32.Ke2 g5–+) 32.Ke3 f6 33.f4 Re8 34.Kf3 Re4 35.f5 Kb8 36.a5 Kc7 37.Ra4 Re8 38.Rb4 (38.Ra2!?=) 38...Re1–/+ 39.Ra4 Rg1 40.a6 Rg3 41.Kf2 (41.Ke2 ba6 42.Ra6 Rh3 43.Ra7 Kb8–/+) 41...ba6–+ 42.Ra6 Rh3 43.Ra7 Kb8 44.Rf7 Rg3 45.Rf6 Rg4 46.Rc6 Rd4 47.f6 Rf4 48.Kg2 g4 49.Rd6 g3 50.Rd5 Rf6 51.Rg5 Rf2 52.Kg1 Rf4 (52...Kc7 53.Rg4 Rh2 54.Rg6–+) 53.Kg2 (53.Rg7!? Rc4 54.Rh7 Rc1 (54...Rc5?! 55.Rh4 Rc2 56.Rg4=) 55.Kg2 Rc2 (55...Rc5?! 56.Rh4 Rg5 57.Rh3=) 56.Kg1 Rh2–/+ (56...Rc5?! 57.Rh4 Rc2 58.Rg4=)) 53...Kc7 54.Rh5 Kc6 55.Kg1 Kb5 56.Kg2 Rg4 57.Re5 h3! 58.Kh3 g2 59.Kg4 g1Q (59...g1Q 60.Kf3 Qd4–+) 0–1. Panic,Sasa – Milovanovic,Srboljub (2200), Pozarevac SER, CS Men Ch, 2012. (=1.a3 a6 2.b4 d5)

3.Nf3 Nf6 4.e3 Nbd7 5.d4 e6 6.c4 dc4 7.Bc4 Bd6 8.0–0.

2.a3 b5

3.Bb2 Nc6 4.e3 a6 5.Nf3 Bg4 6.Be2 Nf6 7.Nc3 e5 8.0–0 Be7 9.d3 0–0 10.Qd2 h6 11.h3 Bf5 12.Nh4 Be6 13.d4 (13.Nf3!?+=) 13...e4 14.Nd1? (better is 14.f4!?–/+) 14...g5 15.Ng6? (15.Nf3 ef3 16.Bf3–+) 15...fg6 16.c3 h5 17.Kh2 (17.a4 Na7–+) 17...h4 18.f3 (18.a4 g4–+) 18...Nh5 (18...ef3 19.Rf3 g4 20.hg4 Bd6 21.Kg1 Bg4 22.Qd3–+) 19.Nf2 (19.fe4 Rf1 20.Bf1 Ng3–+) 19...Bd6 20.Kg1 Ng3 21.Rfe1 a5 22.f4 ab4 23.cb4 Na7 24.Kh2 gf4 25.ef4 Nf1! 26.Bf1 Bf4 27.Qf4 Rf4 28.Rac1 Rf2 29.Ba1 Ra2 30.Bc3 Ra3 31.Be2 g5 32.Rf1 c6 33.Bh5 Qd6 34.Kh1 Nc8 35.Rf6 Ne7 36.Bb2 Ra2 37.Bc3 Kg7 38.Rff1 R8a3 39.Kg1 Qg3 40.Rfe1 Qg2 0–1. pieeater – irish paddy, ChessWorld.net, 2012.

3.d4 a5 4.ba5 Ra5 5.Nf3 =.

3.d4 h6 4.e3 f5?? (better is 4...Bd7!?=) 5.Nf3 (5.Qh5 Kd7 6.Bb5 c6 7.Qf5 e6 8.Qf7 Qe7 9.Qe7 Ne7+–) 5...Nc6? (5...c6 6.Ne5 Nf6 7.Be2+/–) 6.Bd3?? (better is 6.Bb5 Bd7 7.Bc6 Bc6 8.Ne5+–) 6...a6+/– 7.0–0 g5 8.Nc3 (8.c3!?+/–) 8...e6 9.Re1 Bd6 10.Ne2 h5 11.e4?? (better is 11.Bb2+=) 11...f4?? (better is 11...fe4 12.Bg5 Qd7–/+) 12.e5 Be7 13.c3 h4 14.Bg6 Kd7 15.Bd2 Rh6 16.Bd3 Qe8? 17.a4+– Na7 18.a5?? Qh5 19.Qc2?? g4?? 20.Bf4?? Rh8?? 21.Bg6+– gf3 22.Bh5 Rh5 23.gf3 h3 24.Ng3 Rh4 25.Be3 Bb7 26.Qg6 Nc6 27.f4 Nh6 28.f5 ef5 29.Bh6 Bf8 30.Qf5 1–0. pieeater – rgp, ChessWorld.net, 2013.

2.a3 d4

3.Bb2 (--> 1.b4 d5 2.Bb2 d4 3.a3).

3.e3 e5 (--> 1.b4 e5 2.a3 d5 3.e3 d4).

2.a3 Bd7

3.Bb2 e6 (--> 1.b4 d5 2.Bb2 e6 3.a3 Bd7).

3.Bb2 f6 4.e3 e5 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Bd7).

2.a3 e5

(--> 1.b4 e5 2.a3 d5).

3.Bb2 d4 4.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 d4).

3.Bb2 Qd6 (--> 1.b4 d5 2.Bb2 Qd6 3.a3 e5).

3.Bb2 Bd6 4.e3 Nf6 5.Nf3 Nbd7 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6).

3.Bb2 Bd6 4.Nf3 Qe7 5.e3 Nf6 6.c4 c6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 c6 6.Nf3 Qe7).

3.Bb2 Nd7 4.e3 Ngf6 5.c4 c6 6.Nf3 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Nf6 6.c4 c6).

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

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

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

2.a3 e6

(--> 1.b4 e6 2.a3 d5).

3.Bb2 f6 (--> 1.b4 e6 2.Bb2 f6 3.a3 d5).

3.Bb2 Nf6 4.Nf3 c5 5.bc5 Bc5 6.e3 Nc6 7.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3 0–0 7.c4 Nc6).

3.d4 Nf6 (--> 1.b4 Nf6 2.d4 e6 3.a3 d5).

2.a3 Bg4

3.Bb2 (--> 1.b4 d5 2.Bb2 Bg4 3.a3).

3.Nf3 Bf3 4.ef3 e5 5.d4 Bd6 6.c4 c6 7.Bb2 Qe7 8.de5 Be5 9.Be5 Qe5 10.Qe2 Qe2 11.Be2 Nf6 12.cd5 Nd5 13.0–0 0–0 14.Nd2 Nd7 15.Rac1 Rfe8 16.Bc4 Nf4 17.Ne4 Ne5 18.Bb3 Rad8 19.Rcd1 Ne2 20.Kh1 Nd4 21.Ba2 b6 22.Ng5 h6 23.Ne4 Ne2 24.Rd8 Rd8 25.h3 Kf8 26.Re1 Nf4 27.Kh2 g5 28.Ng5 Nfd3 29.Nf7 Nf7 30.Re6 Rd6 31.Re3 Nf2 32.Kg3 Nd1 33.Re1 Nc3 34.Bb3 a5 35.ba5 ba5 36.Kf2 Rd2 37.Kg3 a4 38.Be6 Ng5 39.Bc8 Ra2 40.Bd7 c5 41.h4 Nf7 42.Re8 Kg7 43.Rc8 Ra3 44.Rc5 Ne2 45.Kg4 Ra1 46.f4 a3 47.Bb5 Nd4 48.Bc4 Rc1 49.Rc7 Ne6 50.Rc6 h5 51.Kg3 a2 0–1. tflk (1760) – toffie62 (1795), gameknot.com, 2014.

2.Ba3 e5

(--> 1.b4 e5 2.Ba3 d5).

3.e3 Nf6 (--> 1.b4 e5 2.Ba3 Nf6 3.e3 d5).

2.Ba3 Bf5

3.b5 a6 4.e3 ab5 5.Bb5 c6 6.Bd3 Bd3=+ 7.cd3 Nd7 8.d4 e6 9.Bf8= Nf8 10.Nf3 Nd7 11.0–0 Ngf6 12.Qb3 Qb6 13.Qb6 Nb6=+ 14.d3 0–0 15.Nbd2 Nfd7 16.h3 Ra3=+ 17.Nb3 Na4 18.e4 Nc3 19.e5 Rfa8 20.Nc5–/+ Nc5 21.dc5 Ra2 22.Ra2 Ra2 23.d4 Ra4 24.Kh1 h6 25.g4 g5 26.Rg1 Ne2 27.Rb1?? Nd4–+ 28.Nd4 Rd4 29.Rb7 Rc4 30.Rb8 Kg7 31.Rc8 Rc5 32.Kg2 d4 33.Rd8 Rd5 34.Rb8 d3 35.Rb1 c5 36.Kf3 Re5 37.Rd1 c4 38.Kg3 Rd5 39.f4 c3 40.Kf3 c2 (41.Kg3 cd1Q 42.fg5 hg5 43.h4 Qg1 44.Kf3 Re5 45.hg5 Re3 46.Kf4 Qf2#) 0–1. pinecrest1981 – Bute, Live Game Caissa's Web, 2006.

3.b5 Nf6 4.Nf3 =+.

3.e3 Nf6 4.c4 (4.Nf3 e6+=) 4...e6 5.Qa4 Nbd7 6.b5 (6.cd5!? Nd5 7.Nc3+=) 6...Nb6–/+ 7.Qb3 (better is 7.Qa5 Nc4 8.Bc4 dc4 9.Bf8 Rf8 10.Nf3–/+) 7...Ba3 (better is 7...dc4!? 8.Qc3 Ne4–+) 8.Na3+= Ne4 9.d3 (9.Nf3 Qf6 10.d4 0–0=) 9...dc4 (9...Qf6 10.Rc1 Nc5 11.Qc2–/+) 10.Nc4+= Nc5 11.Qc3 (11.Qb2 Nd3 12.Bd3 Qd3 13.Nb6 ab6+=) 11...0–0 (11...Nd3!? 12.Bd3 Qd3 (12...Bd3?! 13.Nb6 cb6 14.Qg7=) 13.Qg7 0–0–0 14.Nb6 ab6–/+) 12.Nb6 ab6 13.d4 Ne4 14.Qb3 Qe7 15.a4 (15.Nf3 Ra3 16.Qb2 Rfa8–/+) 15...Rfd8 (better is 15...e5 16.Nf3 ed4 17.Nd4 Qf6+=) 16.g3? (16.Nf3 Ng5=) 16...Nf6 (16...e5!? 17.Ne2 Qf6–+) 17.Bg2 (17.Nf3 Be4 18.Bg2 Nd7+=) 17...Be4 (17...e5 18.Qa3 Qa3 19.Ra3 ed4 20.Bb7–/+) 18.Be4 Ne4 19.f3 Nf6 20.Ne2 Nd5 21.Qa3 (21.0–0 c5=) 21...Qd7 (21...c5 22.bc6 Nb4 23.0–0 bc6 24.Rfc1+=) 22.Kf2 (22.e4 Nf6+=) 22...c6 23.Rab1? (better is 23.Rhb1!?=) 23...cb5–/+ 24.Rb5?? (better is 24.e4 Ne7 25.Rhd1–+) 24...Qc6 (better is 24...Qb5! 25.ab5 Ra3–+) 25.Rhb1 Exerts pressure on the isolated pawn 25...Ra6 26.e4 Nc7 27.R5b4 Rda8 The pressure on the isolated pawn grows 28.Rc1 (28.Qb3 Ne8+/–) 28...Qd7 29.Qb3 Ra4?? (better is 29...b5 30.ab5 Ra3+=) 30.Ra4+– (30.Rb6?! Qd8+/–) 30...Qa4 (30...Ra4 31.Rc7! Qc7 32.Qa4+–) 31.Qa4 Ra4 32.Rc7 g6 33.Rb7 (33.Rb7 Rb4 34.d5 ed5 35.ed5+–) 1–0. Sander,Axel – Nielsen,Poul Steen (2475), Copenhagen, 1982.

2.a4 a5

3.ba5 e5 4.Bb2 Bd6 5.Nf3 =+.

3.ba5 g6 4.c4 dc4 5.d3 Bg7 6.dc4?? Ba1 7.Bb2 Bb2 8.Qc2 Bf6 9.Qe4 Bf5 10.Qe3 Bb1 11.f4 Bc2 12.Nf3 Nc6 13.Qd2 Ba4 14.Qa2 Qd1 15.Kf2 Bd4 16.e3 Nb4 17.Be2 Qh1 18.ed4 Na2 19.Nh4 Nc3 20.Bd3 Nd1 21.Kf3 Qh2 22.Kg4 Nf2 23.Kg5 f6# (23...h6#) 0–1. idontknow – rvdc (1865), net–chess.com, 2006.

3.b5 e5 +=.

3.Nc3 Ra7 (3...ab4 4.Nb1–+) 4.Nf3 (4.b5+=) 4...d4 (better is 4...ab4 5.Nb5 Ra5–/+) 5.Nd4?? (5.Nb5 Ra8 6.Bb2= (worse is 6.Nfd4 c6–/+; 6.Nbd4?! e5 7.Nb3 e4=)) 5...Bh3?? (better is 5...Qd4 6.Bb2 Qd8–+ (6...Qb4?! 7.Nb5 Qb2 8.Na7–/+)) 6.Ba3 (better is 6.Ndb5 Ra8 7.gh3 ab4 8.Nd5+–) 6...Bc8 7.Nf5. Shell,Gregory – Kruimer,Wim HJ, IECC T email, 2001.

2.a4 b6

3.Bb2 a5 4.b5 g6?? 5.Bh8+– f6 6.e3 Nd7 7.Nc3 Ne5 8.Nf3 Nf3 9.Qf3 Bh6 10.Nd5 Bg5 11.Nf6! Bf6 12.Bf6 Nf6 13.Qa8 1–0. mlaurent – spankys, net–chess.com, 2001.

3.c3 Bb7 4.Nf3 e6 5.d4 Nf6 6.Bg5 Be7 7.Nbd2 Nbd7 8.Ne5 Ne5 9.de5 Nd7 10.Be7 Qe7 11.f4 0–0 12.Nf3 h6 13.Qd4 f6 14.g4 fe5 15.fe5 c5 16.Qd2 c4 17.Qd4 Rf7 18.Bg2 Raf8 19.Qd1? Rf4 20.a5 Rg4 21.ab6?? Rg2–+ 22.ba7 Ra8 23.b5? Nb6 24.Qd4 Qc7 25.h3? Bc8 26.Nh4 Rg5 27.Nf3 Rf5 28.0–0 Ra7 29.Ra7 Qa7 30.Qc5 Qa5 31.Nd4 Rf1 32.Kf1 Qa7 33.e3 Bd7 34.Kf2 Be8 35.Ne6 Bf7?? 36.Qf8 Kh7 37.Qg7# 1–0. COMP – NN, 2003.

2.a4 d4

3.c3 Nc6 4.Na3 e5 5.Qb3 Be6–/+ 6.Bb2?? Bb3–+ 7.Nc2 Bc2 8.Rc1 Ba4 9.Nf3 Nf6 10.Ra1 b5 11.d3 g6 12.Ra4 ba4 13.cd4 Bb4 14.Kd1 Ng4 15.Kc2 a3 16.h3 Nf2 17.Rh2 Nd4 18.Kc1 ab2 19.Kb2 Qd6 20.g4 0–0 21.Rf2 Ba3 22.Kc3 Qc5 23.Kd2 Qc1# 0–1. idontknow – cacook (1620), net–chess.com, 2006.

3.Nf3 Nc6 4.b5 Na5 5.c3 dc3 6.Nc3 e6 7.Rb1 b6 8.d4 Nf6 9.e4 Be7 10.Bd3 h6 11.0–0 Bb7 12.Be3 Ng4 13.Bf4 g5 14.Bg3 h5 15.Be2 h4 16.Be5 Ne5 17.Ne5 c5 18.bc6 Nc6 19.Bb5 Qc7 20.d5 0–0–0? 21.Nc6 Bc6 22.Bc6 Kb8 23.a5 Rd6 24.ab6 ab6 25.Qa4 Qa7 26.Qa7 Ka7 27.Ra1 Kb8 28.Ra8 Kc7 29.Nb5 1–0. pierred – burkebomber1, Yahoo, 2005.

3.Nf3 e6 4.b5 b6 (4...Nf6!?=) 5.Bb2+= White gets the initiative 5...Bc5 (5...c5 6.bc6 Nc6 7.e3 de3 8.fe3=) 6.e3+/– f6 (6...Nf6!?+/–) 7.Nd4+– Bd4 8.ed4 c6 9.Bc4 cb5 10.ab5 Bb7 11.Be6 Qe7 12.Qe2 Bg2 (12...Kd8 13.d5 Nh6+–) 13.Rg1 Bh3 (13...Bb7 14.Ba3 Qc7 15.Bg8 Kd8 16.Qe6+–) 14.Bh3 Qe2 15.Ke2 g6 (15...a5 16.Rg7 Ne7+–) 16.Bg2 (16...a5 17.Ba8+–) 1–0. Trkn – guest5321, ICC, 2004.

2.a4 Nf6

(--> 1.b4 Nf6 2.a4 d5).

3.Bb2 g6 4.e3 Bg7 5.Nf3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.a4).

2.a4 Bg4

3.Bb2 e6 4.h3 Bh5 5.Nf3 Bb4?? (better is 5...Nf6=+) 6.Bg7+– Nf6 7.Bh8 a5 8.c3 Bc5 9.d4 Bb6 10.Nbd2 Nc6 11.g4 Bg6 12.g5 Bh5 (12...Nd7+–) 13.Bf6 Bf3 (13...Qd6 14.e3+–) 14.Bd8 Kd8 15.Nf3 Ne7 16.Qd3 Ng6 17.h4 Nf4 18.Qh7 f6 19.gf6 Kc8 20.Qh8 Kd7 21.Qg7 Kd6 22.Qe7 Kc6 23.Ne5# 1–0. miehnekort – pierre8388, Yahoo, 2005.

3.Nf3 Bf3 4.ef3 e5 5.Qe2 Bb4 6.Qe5 Qe7 7.Qe7 Ne7 8.Bb2 0–0 9.Nc3 Re8 10.Nb5 Ba5 11.0–0–0 c6 (better is 11...Nbc6=+) 12.Nd6+– Rd8? (better is 12...Nd7 13.Re1 Nc5+–) 13.Nb7 Nd7 (13...Bb6 14.Nd8 Bd8+–) 14.Na5 Rab8 15.Re1 Re8 16.Ba3 Nf5 17.Bd3 Re1 (17...Nh4 18.Nc6 Ng2 19.Nb8 Ne1 20.Nd7 Nd3 21.cd3+–) 18.Re1 Nd4 19.c3 Ne6 20.Nc6 Rb6 21.Ne7 Kh8 22.Nd5 Rb3 (22...Rb8 23.Bf5+–) 23.Bb4 h6 24.Bc4 Nec5 (24...Rb4 25.Nb4 Nb6 26.Be6 fe6 27.a5+–) 25.Re7 Nd3 26.Bd3 Ne5 27.Re8# 1–0. miehnekort – peruano_tierno, Yahoo, 2005.

2.b5 Qd6

3.a3 Nf6 4.d4 a6 5.e3 Bd7 (5...ab5 6.Bb5 Bd7 7.Be2+=) 6.Nc3 ab5 7.Bb5 (7.Nb5 Bb5 8.Bb5 c6=) 7...c6 (7...Bb5 8.Nb5 Qd7 9.Qe2+=) 8.Be2 Bf5 (8...e5 9.Bb2 e4 10.f3–/+) 9.Nf3= Nbd7 10.0–0 Ng4 11.h3 h5 (11...Nh6 12.a4=) 12.Rb1 (12.hg4? hg4 13.g3 gf3 14.Bf3 Qg6–+) 12...e5 (better is 12...b5+=) 13.Rb7+= (13.hg4 hg4 14.Ne5 Ne5–/+) 13...e4 14.hg4 hg4 15.Ne5 (better is 15.Nh4!? Rh4 16.g3–/+) 15...Ne5–+ 16.de5 Qe5 17.g3 (17.f4 gf3 (17...Qc3?! 18.Bg4 Bg4 19.Qg4–/+) 18.Bf3 ef3 (18...Qc3?! 19.Bg4 g6 20.Bf5 gf5 21.Rf5–+) 19.Qf3 Bg6–+ (19...Qc3 20.Qf5 Qe3 21.Be3 Rh1 22.Kh1 Be7 23.Qf7 Kd8 24.Qe7 Kc8 25.Rf8)) 17...Bc8 (17...Qc3?! 18.Bb2 Qa5 19.Qd4–/+) 18.Bg4 (18.Nd5 Bb7 (18...cd5?! 19.Bb5 Kd8 20.Rf7+=; worse is 18...Qd5 19.Qd5 cd5 20.Bb5 Kd8 21.Rf7+=) 19.Nf4 Rd8–+) 18...Bb7 (18...Qc3?! 19.Bc8 Rc8 20.Qd4 Qd4 21.ed4+=) 19.Ne2 (19.Qd4 Qd6 20.Kg2 Qh6 21.Ne4 Qh2 22.Kf3 de4 (22...Ba3 23.Ba3 f6 24.Nd6 Kf8 25.Qb6+–) 23.Ke2 Rd8 24.Qe4 Be7–+) 19...Bc8 (better is 19...Qg5!? 20.Nf4 Qh6 21.Nh5–+) 20.Nf4 (20.f4 ef3 21.Bf3 Bh3–+) 20...Bg4 (20...Ba3?! 21.Bc8 Bc1 22.Bb7+=) 21.Qg4 Qf6 (21...Ba3?! 22.Ba3 g5 23.Nd5 cd5 24.Bc5–+) 22.Kg2 Qh6 (22...g5 23.Ne2–+) 23.Rg1 (23.Rd1 Qh2 (23...Ba3?! 24.Ba3 f5 25.Qg6 Qg6 26.Ng6–+) 24.Kf1 g5 (24...Ba3 25.Ba3 Qh1 26.Ke2 Qf3 27.Qf3 ef3 28.Kf3 Ra3 29.Rb1–/+) 25.Nd5 cd5 26.Rd5 Be7–+) 23...g6 (23...Qh2!? 24.Kf1–+) 24.Bb2 Qh2 25.Kf1 Rh6 26.Rg2 (26.Qg5 Be7 27.Bf6 Bd6–+) 26...Qh1 27.Rg1 Qf3 28.Qf3 ef3 29.Ke1 Ba3 30.Bc3 (30.Ba3 Ra3 31.Kd2 Rh2–+) 30...Bb4! 31.Kd2 (31.Bb4 Ra1 Deflection) 31...Bc3 (31...Bd6 32.Nd3–+) 32.Kc3 Rh2 33.Nd3 Ra3 (33...Ke7 34.Rb1–+) 34.Kb4 Rd3! 35.cd3 Rf2 36.Kc5 Kd7 37.g4 (37.e4 Rg2 38.Re1 Rg3 39.ed5 Rg5–+) 37...Rc2 38.Kd4 Kd6 39.e4 Rg2 40.Rf1 (40.e5 Ke6 41.Rc1 Rg4 42.Ke3 Ke5 43.Kf3 Rf4 44.Ke3 d4 45.Ke2 Kd5–+) 40...Rg4 41.Rf3 f5 42.Ke3 de4 43.de4 Re4 44.Kf2 g5 45.Rf5 (45.Rd3 Ke5 46.Rc3–+) 45...Rf4 46.Rf4 gf4 47.Kf3 Ke5 48.Ke2 Ke4 49.Kf2 f3 50.Ke1 Ke3 51.Kf1 c5 52.Ke1 c4 53.Kd1 f2 54.Kc2 f1Q 0–1. Jones,Malcolm – Schalkwijk,Peter H (1680), IECG, 1999.

3.Bb2 (--> 1.b4 d5 2.Bb2 Qd6 3.b5).

3.Nf3 Nf6 =.

2.b5 Nd7

3.d4 e5 4.e3 Ngf6 5.Be2 Bb4 6.c3 Ba5 7.de5 Ne5 8.Nf3 Qe7 9.0–0= Bb6 10.a4 a6 11.Nd4 0–0 12.Ba3 Bc5 13.Qb3 Ba3 14.Na3 Ne4 15.Nac2 c5 16.bc6=+ Nc6 17.f3 Nd2=+ 18.Qd5 Nf1 19.Kf1 Bd7 20.Bc4 Rac8 21.Bb3 Nd4–+ 22.cd4? Be6 23.Qe5 Rfe8 24.d5 Bd7 25.Qf4 Qc5 26.Rc1? Qc3 27.Ba2 Qd3 (27...Qd3 28.Ke1 Rc2 29.Rc2 Qc2–+) 0–1. mic (2155) – mgoodrich (2085), net–chess.com, 2008.

3.d4 e6 4.Nf3 Ngf6 5.e3 Bd6 6.c4 c5 7.bc6 bc6 8.c5 Bc7 9.Nc3 0–0 10.Rb1 e5 11.Be2 Ne4 12.Ne4 de4 13.Nd2 ed4 14.ed4 e3 15.fe3 Qh4 16.Kf1 Nf6 17.Kg1 Ng4 18.Bg4 Bg4 19.Qf1 Rab8 20.Rb8 Rb8 21.e4 Rb4 22.h3 Bh5 23.Qa6 Qd8 24.d5 cd5 25.a3 Rd4 26.Nf1 Re4 27.Qa7 Re2 28.h4 d4 29.c6? Bb6 30.Qd7 Qd7 31.cd7 Bg4 32.Ng3 Rc2 33.Bg5 Bd7 34.Kh2 Bc7 35.Rc1 Rc3 36.Rc3 dc3 37.Be3 f5 38.Bd4 c2 39.Bb2 Bf4 40.h5 g6 41.hg6 h5 42.Kh3 Be5!! 43.Bc1 f4 44.Kh4 fg3 45.Bh6 Be8 46.a4 Ba4 47.Kh5 Bc6 48.Kg4 Bg2 (49.Be3 Be4–+) 0–1. Bestia03g – Freyr1067, computer chess game, 2000.

2.b5 Bf5

3.a4 e5 4.h4 Bd6 5.a5 Ne7 (6.Ba3 c5–/+) 0–1. Ruthless Rook – ahmed sharkawy_1, ChessWorld.net, 2005.

3.Bb2 (--> 1.b4 d5 2.Bb2 Bf5 3.b5).

3.d4 e6 4.e3 Nf6 5.Nf3 c5 6.dc5 Bc5 7.Be2 0–0 8.0–0 Nbd7 9.Nc3 Qc7 10.Bb2 Bb4 11.Qd2? (better is 11.Qd4 Bd6 12.h3+=) 11...Rac8–+ 12.Nd4 (12.b6 Qb6 (12...Bc3?! 13.bc7 Bd2 14.Nd2–/+; 12...Nb6?! 13.Nb5 Bd2 14.Nc7–+) 13.Na4 Qa5–+ (13...Bd2?! 14.Nb6 Nb6 15.Bf6–+; 13...Rc2?! 14.Qc2 Bc2 15.Nb6 Nb6 16.Rac1=)) 12...Bc3 13.Bc3 Qc3 14.Rfd1 (14.Qc3 Rc3 15.Nf5 ef5–+) 14...Ne4 (14...Bc2!? 15.Nc6 Ne4 16.Qc3 Nc3 17.Ne7 Kh8 18.Rd2 Ne2 19.Re2–+) 15.Qc3 Nc3 (15...Rc3?! 16.Nf5 ef5 17.Rd5–+) 16.Re1 Ne2 17.Re2 Bg6 18.a4 (18.f4 Rc3–+) 18...e5 19.Nf3 Rc2 20.Rc2 Bc2 21.Ra2 (21.h3 a5 22.ba6 ba6–+) 21...Bb3 22.Rd2 (22.Ra3 Rc8 23.h3 Bd1–+) 22...e4 23.Nd4 Ba4 24.Ra2 Nb6 25.f4 Rc8 26.Kf2 a6 27.Kg3 ab5 28.h4 Rc3 29.Kf2 Kf8 30.Rb2 Rc5 31.Kg3 Nc4 32.Rb1 Ne3 33.Kf2 Nc2 34.Ne2 b4 35.Nd4 Nd4 36.Ke3 Nc2 37.Ke2 d4 38.g4 d3 39.Kd2 b5 40.f5 b3 41.Kd1 e3 0–1. Jano – Leoninus666, playchess.de, 2004.

3.d4 e6 4.Nf3 Nf6 5.e3 c5 6.Nc3 Nbd7 7.Bb2 Qa5 8.Bd3 cd4 9.Nd4 Bb4 10.Nde2 Rc8 11.Qd2 d4 12.ed4 Nd5 13.Bf5 ef5 14.Ng3 0–0 15.0–0 f4 16.Nge2 Nc3 17.Nc3 f3 18.g3 Bc3 19.Bc3 Qc3 20.Qd3 Qd3 21.cd3 Rc2 22.Rfc1 Rfc8 23.Rc2 Rc2 24.h4 Kf8 25.Re1 Ra2 26.Rc1 Nf6 27.h5 Rb2 28.d5 Rb5 29.d6 Ke8 30.h6 gh6 31.d4 Rb2 32.d5 Ng4 33.Rf1 Rf2 34.Rf2 Nf2 35.Kf2 a5 36.Kf3 a4 (37.Ke4 a3–+) 0–1. Bestia03g – Phalanx22, computer chess game, 2000.

3.Nf3 c5 4.c4 e6 5.a4 Nd7 6.g3 Qf6 7.Nc3 d4 8.Nb1 Be7 (8...Be4 9.d3 Bf3 10.ef3+=) 9.d3= Qg6 10.Bg2 h5 11.h4 Rb8 12.a5 e5 13.b6 (13.Nbd2 Ngf6=) 13...a6 14.Ng5 Bg5 15.Bg5 f6 16.Bd2 e4 17.Bf4 Ne5 18.0–0 Ne7 19.Nd2 ed3 20.ed3 0–0 (20...Bd3!? 21.Re1 Qf5+=) 21.Ne4 Be4 22.Be4 (22.de4?! Rbd8=) 22...Qe8 23.Re1 1–0. Accardo,Francesco (1850) – Schiappoli,Dario (1920), Napoli Basile Memorial–A, 2007.

3.Nf3 e6 4.Bb2 Nf6 5.e3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.b5).

2.c3 b6

3.a4 c5 4.b5 c4 5.d3 cd3 6.Qd3 Nf6 7.Bg5 e5 8.Bf6 Qf6?? (better is 8...gf6 9.e4 Bb7=) 9.Qd5+– Qf4 (9...Nc6 10.Nf3 Bf5+–) 10.Nd2 Bc5 11.e3 Qh4 12.Qe5 (12.Qa8 Bd6+–) 12...Be7 (12...Qe7 13.Qg7 Rf8+–) 13.Qe4 (13.Qd5 Qf6 14.Ne4 Qe6 15.Qa8 0–0+–) 13...Qf6?? (better is 13...Qe4 14.Ne4 Bb7+–) 14.Ngf3 (14.Qa8!? Qc3 15.Rd1 Qc7+–) 14...Qc3 15.Rd1 (15.Qa8?! Qa1 16.Ke2 Bd6+–) 15...0–0 (15...Nc6 16.Bc4 Qf6 17.Qc6 Qc6 18.bc6+–) 16.Qa8 Bg4 17.Be2 Nd7 18.Qa7 Bb4 19.h3 Bf5 20.0–0 Ne5 21.Ne5 Qe5 22.Qb6 Bd6 23.Nf3 Bc7 24.Ne5 Bb6 25.Nd7 Bd7 26.Rd7 h6 27.Rfd1 Re8 28.Rd8! Bd8 29.Rb1 Bf6 30.Bh5 g6 31.Be2 Bd8 32.b6 Bf6 33.b7 Be5 34.a5 Bb8 35.a6 Ba7 36.Rc1 Kg7 37.Rc8 Re6 38.b8Q Bb8 39.Rb8 Re7 40.Bf3 Ra7 41.Be2 Kf6?? 42.Rb7+– (42.Rb7 Ra8 43.a7+–) 1–0. maddoxdb – dariopa, gameknot.com, 2012. (=1.c3 d5 2.b4 b6)

3.Nf3 Nf6 4.d3 =.

3.Nf3 h6 4.e3 (4.Ne5 Nf6=) 4...Bg4 (4...Nf6 5.Be2=) 5.Be2 (5.d4 e6=) 5...Nf6 (5...e6 6.0–0=) 6.0–0 (6.d3 a5=) 6...a6 (6...e6 7.Na3=) 7.d3 b5 (7...e6 8.h3 Bf3 9.Bf3= (< 9.gf3 c5=+)) 8.Nbd2 (8.a4 Nbd7+=) 8...e6 (8...a5 9.ba5 Ra5 10.Nb3+=) 9.Nb3 (9.a4 Nbd7+=) 9...Nbd7 10.Nbd2 (10.a4 c5 11.ab5 cb4 12.ba6 bc3+=) 10...a5 (10...c5 11.Rb1=) 11.ba5 Ra5 (11...Bd6 12.c4 dc4 13.dc4=) 12.Nb3 (12.Nd4 Be2 13.Qe2 Ne5+–) 12...Ra7 (12...Ra6 13.Nfd4 Be2 14.Qe2=+) 13.h3 (13.Nbd4 Rb7+=) 13...Bh5 (13...Bf3!? 14.Bf3 Ne5=) 14.Nbd4+= Bf3 (14...Rb7 15.Rb1 Qb8 16.a4 ba4 17.Rb7 Qb7 18.Qa4=) 15.Nf3 (15.Bf3 Rb7+=) 15...Nb6 (15...Qa8 16.Qb3=) 16.Ne5 (16.e4 Ba3=) 16...Qa8 17.a3 Ba3 18.Ba3 Ra3=+ 19.Ra3 Qa3 20.Qc2 0–0–/+ 21.Rb1 Qa6 22.Nc6 Re8 23.Ne5 c5 24.d4 c4 25.Nc6 Ne4–/+ 26.Nb4 Qb7 27.Bf3 f5 28.Ra1 Na4 29.Be2? Nac3–+ 30.f3 Ne2 31.Kh1?? N4g3 32.Kh2 h5 33.Re1 h4 34.Ra1 Ra8 35.Ra8 Qa8 36.Qd2 Qa1 (37.Qc1 Qc1 38.Nd5 Qg1#) 0–1. kostaspetidis (2105) – valerypavlovich (2120), net–chess.com, 2006.

2.c3 c5

3.bc5= Qa5 4.d4 Nf6 5.Nf3 e6 6.e3 Be7 7.Bd3 0–0 8.0–0 Nbd7 (8...b6 9.cb6 ab6 10.Ne5+=) 9.Qc2 Qd8 10.Bb2 (10.c4 dc4 11.Qc4 a6+–) 10...b6 11.cb6 Nb6 12.Nbd2 Nbd7 13.Rab1 a6 14.Nb3 Bb7 15.Rfe1 Rc8 16.c4 (16.Nbd2+/–) 16...Ba8?? (better is 16...dc4 17.Bc4 Bb4=) 17.Qe2 (17.c5!? Bc6+–) 17...dc4+/– 18.Bc4 Nb6 (18...a5 19.Rec1+/–) 19.Bd3 (19.Ba6!? Rc7+–) 19...a5+/– 20.Rec1 (worse is 20.Na5 Bb4 21.Nb3 Be1 22.Ne1 Be4+=) 20...Rc1 21.Rc1 Bb4 (21...Qd5 22.Rc7 Bb4 23.Bc3+/–) 22.h3 (22.Nc5 Nfd7+–) 22...Qb8 (22...Qd5 23.Bc3+/–) 23.Ne5 (23.Nc5 Nbd7+–) 23...Qb7 24.Nf3 Nbd5?? (24...Qb8 25.Nc5 Nbd7+–) 25.Nc5+– Bc5 26.Rc5 Nb4 27.Rc1?? (27.Bc4 Qb6+–) 27...Rd8?? (better is 27...Nd3 28.Qd3 Qb2–+) 28.Rb1 (28.Bc4 Nbd5+/–) 28...Nh5 (28...Nd3 29.Qd3 Rb8 30.Qe2+=) 29.Bc1 (better is 29.Ba3+–) 29...Nf4?? (better is 29...Qc7+/–) 30.ef4+– Nd5 (30...Rd4 31.Bc2 Rd8+–) 31.Rb7 Bb7 32.Be3 (32.f5!? ef5 33.Bf5 g6+–) 32...Nb4 33.Kh2 (33.Bc4 Be4+–) 33...Bd5 (33...Nd3 34.Qd3 Bf3 35.gf3+–) 34.Bd2 (34.Bc4 g6+–) 34...Rc8 (34...Nd3 35.Qd3 Ba2 36.Ng5+–) 35.Bb4 ab4 36.Qd2 (36.Be4 h6+–) 36...Ra8 (36...Bf3 37.gf3 Rb8 38.f5 ef5 39.Qf4+–) 37.Ne5 (better is 37.Qb4 Bf3 38.gf3 g6+–) 37...Ra2 (37...f6 38.Nc4 Rb8+–) 38.Qa2! Ba2 (38...Ba2 39.Nc6 Combination) 39.Bc4 (better is 39.Nc6 b3 40.Bc4 Kf8+–) 39...Bc4 40.Nc4 b3 41.f3 h6 42.g4 b2? (42...Kf8+–) 43.Nb2 f5 44.gf5 ef5 45.Nd3 (better is 45.Kg3 Kf7+–) 45...g5 (45...Kf7+–) 46.fg5 hg5 47.Ne5 Kg7 48.f4! gf4 49.Kg2 (49.Kg2 Kf6 50.h4+–) 1–0. Fournier,Frederic (2010) – axa69 (2060), Active Blind, 2008.

3.bc5= e5 4.d4 ed4 5.cd4 Nc6 (5...Bc5 6.e3 Nc6=) 6.Bd2 (better is 6.Nc3+/–) 6...Nd4+= 7.e3 Nf5 (7...Nc6 8.Qc2–/+) 8.Nf3 Ne3?? (better is 8...Bc5 9.Bc3 Nge7+=) 9.fe3 (better is 9.Be3!? Nf6 10.Nc3+–) 9...Bc5 10.Be2 b6 11.0–0 Bd7 12.Nc3 Nf6 13.Kh1 0–0 14.Bc1 g6 (14...Bg4!?+/–) 15.Bb2 Bf5 16.Bd3 (16.Nd4 Be4+–) 16...Ne4 17.Qc2 Nc3? (17...Re8 18.Ne4 Be4 19.Ne5 Bd3 20.Nf7 (20.Qd3?! f5+–; 20.Nd3?! Be3 21.Qb3 Re6+–) 20...Bf1 21.Nh6 Kf8 22.Rf1 Ke7 23.Bf6 Ke6 24.Bd8 Rad8 25.Nf7+–) 18.Bc3 (better is 18.Qc3!? d4 19.ed4+–) 18...Bd3 19.Qd3 Re8 20.Rac1 (better is 20.Ne5!? f5 21.Rad1+–) 20...Re3+= 21.Qe3?? (better is 21.Qd2 Qd6 22.Rfd1+=) 21...Be3–+ 22.Rfe1 (22.Rce1 Bf4 23.Re2–+) 22...Bc1 23.Rc1 Rc8 24.Re1 (24.Ng1–+) 24...Rc3 0–1. Fournier,Frederic (1935) – Fernando2011b (1605), Active blind, 2011.

2.c3 Qd6

3.Bb2 (--> 1.b4 d5 2.Bb2 Qd6 3.c3).

3.d4 Bf5 4.g3 Nf6 5.Bf4 Qc6 6.Qb3 e6 7.b5 Qb6 8.Nd2 Bd6 9.0–0–0 Bf4 10.gf4 Ng4 11.Nh3 c6 12.a4 0–0 13.Bg2 Nd7 14.Rdg1 cb5 15.ab5 Ngf6 16.Ng5 h6 17.Ngf3 Ng4 18.Rf1 Rfc8 19.h3 Ngf6 20.Kb2 a5 21.h4 a4 22.Qb4 Ra5 23.Kc1 Rb5 24.Qa4 Rc3 25.Kd1 Rb1 26.Nb1 Qb1 27.Kd2 Ne4# 0–1. Golem 0.1 – Frenzee 1.14, computer chess game, 2002.

2.c3 e5

(--> 1.b4 e5 2.c3 d5).

3.a3 (--> 1.b4 e5 2.a3 d5 3.c3).

3.a4 (--> 2.a4 e5 3.c3).

3.a4 Nf6 (--> 1.b4 Nf6 2.a4 e5 3.c3 d5).

2.c3 e6

(--> 1.b4 e6 2.c3 d5).

3.e3 c6 4.Bb2 (--> 1.b4 c6 2.Bb2 d5 3.e3 e6 4.c3).

2.c3 Be6

3.Nf3 Kd7 4.Ng5+= Kc8 5.Ne6 fe6 6.d4 Nd7 7.f4 Nb6 8.Kf2 Nf6= 9.Kg1 g6 10.Qd3 Kb8 11.h4 Qd6 12.a3 Bg7 13.Rh3 Ne4 14.Rf3 Bf6 15.g3 h6 16.Nd2 Nd2 17.Bd2= Nc4 18.a4 g5 19.fg5 e5 20.e4 Nd2 21.Qd2 de4 22.Rf2 hg5 23.hg5 The passed pawn on g5 will become decisive later 23...Bg7 24.de5 Qe5 25.Qe3 Qc3 26.Re1 Qb4–+ 27.Qe4 Bd4 28.Kg2 Qd6 29.Rf7 e5 30.Bc4 a5 31.Rb1 b6 32.Bd5 Ra6 33.Rc1 Ra7 34.g6 Qb4 35.Qe2 Rd8 36.Bc6 Qd6 37.Qe4 Bc5 38.Rc2 Qe6 39.Rh7 Kc8 40.Re2 Bd4 41.Rd2 Qf6 42.Rf7?? Qg5 43.Rd1 Qh6 44.g7 Kb8 45.Qd5! Rc8 46.Re7 Qg6 47.Re1?? Qc2–/+ 48.Kh3 Qf5 49.Kh2 Qg5?? 50.Qe6+– Qe7 51.Qe7 Ra8 52.Qe6 Ka7 1–0. Comet B50 – Fritz 8, 2004.

3.Nf3 Kd7 4.Ng5 Kc8 5.Ne6 fe6 6.d4 Nd7 7.f4 Nb6 8.Kf2 Nf6 9.Kg1 g6 10.Qd3 Kb8 11.h4 Qd6 12.a3 Bg7 13.Rh3 Ne4 14.Rf3 Bf6 15.g3 h6 16.Nd2 Nd2 17.Bd2 Nc4 18.Bc1 Rg8 19.e4 de4 20.Qe4+/– Qd5 21.Bd3 Nd6+= 22.Qd5 ed5 23.Rb1 Ne4 24.Rb3?? Nc3=+ 25.Be3 Nd1 26.Kf1 Ne3–/+ 27.Re3 Rg7 28.Re6 g5 29.hg5 hg5–/+ 30.fg5 Bd4 31.g6 Bf6 32.b5=+ Rg8 33.a4 Rh8 34.Kg1 Bd4 35.Kg2= Bf6 36.Bc2 Rd8 37.Rd3 Rd7 38.g4 Kc8 39.Bb3+/– Rd8? 40.Bd5+– Kb8 41.Kg1 Rh8?? 42.Be4 Rf8?? 43.Rd5 Re8 44.g5 Bb2 45.Rd7 Ba3 46.Rd5 Bd6?? 47.a5 Rh8?? 48.Rf5 Bh2?? 49.Kf1 Rg8 50.a6 c6+– 51.ab7 Kb7 52.Bc6 Kb8 53.g7 Rg7 54.Rf8 Kc7 55.Ra8 Kb6 56.g6 Bc7 57.Be4 Bd6 58.Rb8 Ka5 59.Rb7 Bc5 60.Re5 Kb4 61.Rd7 Bd6 62.Rd5 Bb8 63.Bf5 Kc4 64.Bd3 Kc3 65.Be4 Kb4 66.Bf5 Kc4 67.Be4 Kb4= ½–½. Golem_01 – Ozwald_043, computer chess game, 2000.

3.Nf3 Nf6!? =.

2.Nc3 Nc6

3.b5= Na5 4.Nf3 =.

3.b5= Nb4 4.a3 e6? (better is 4...d4=) 5.ab4+– Bb4 6.Ba3 (6.Nf3 Nf6+–) 6...Qd6 (6...Ba3 7.Ra3 d4 8.Nb1+–) 7.Qc1 (7.Bb4 Qb4 8.Nf3 Nf6+–) 7...Nf6 (7...Ba3 8.Qa3 a5 9.e3+–) 8.Bb4 Qb4 9.e3 (9.Nf3 0–0+–) 9...0–0 (9...e5 10.Nf3 e4 11.Nd4+–) 10.Na2 (10.Nf3 Re8+–) 10...Qc5 (10...Qe7 11.d4+–) 11.d4 Qd6 (11...Qb6 12.c4 dc4 13.Qc4+–) 12.Nf3 a6 (12...Bd7 13.c4+–) 13.Nc3 Bd7 14.Bd3 (14.ba6 ba6 15.Ra5 Qb4+–) 14...Qb4 (14...ab5 15.Qb2+– (worse is 15.Bb5 Bb5 16.Rb1 Ba6–/+; worse is 15.Nb5 Bb5 16.0–0 Bd3 17.cd3 b5–/+)) 15.Qa3 (15.Qd2 ab5 16.0–0 c6+–) 15...a5? (better is 15...Qa3 16.Ra3 ab5+–) 16.Ke2 b6 (16...Rfc8 17.Ne5 c5 18.bc6 (18.Nd7?! Nd7 19.Qb4 cb4+–) 18...Bc6 19.Qb4 ab4 20.Ra8 Ra8 21.Nb1+–) 17.Ne5 g6 (17...Qa3 18.Ra3 h5 19.Na4+–) 18.g4 Qd6 (18...Qa3 19.Ra3 Bc8+–) 19.g5 c5 (19...Bc8 20.gf6 Qd8 21.h4 Qf6 22.h5+–) 20.bc6 Qc7 (20...Qa3 21.Ra3 Bc6 22.gf6+–) 21.Nb5 Qd8 (21...Qc8 22.Qe7 Ne4 23.cd7+–) 22.gf6 Qf6 (22...Bc6 23.Nc6 Qf6 24.Nc7+–) 23.Nd7 Qg7 24.c7 Rfe8 25.Nb6 1–0. Seckler,Siggi (2190) – Schroth,Andreas (1710), remoteschach.de, 2003.

3.b5= Nd4 4.e3 Nf5 5.Nf3 Nf6 6.Bd3 Qd6 7.a4 c5 8.bc6+= Qc6?? 9.Bb5+– (9...Bd7 10.Bc6 bc6 11.Rb1+–) 1–0. pierre – Jarek, ChessHere.com, 2006.

2.Nc3 Nf6

(--> 1.b4 Nf6 2.Nc3 d5).

3.Nf3 e6 4.a3 (--> 1.b4 e6 2.a3 Nf6 3.Nf3 d5 4.Nc3).

2.c4 c6

(--> 1.b4 c6 2.c4 d5).

3.Bb2 Bf5 4.a4 (--> 1.b4 c6 2.Bb2 d5 3.a4 Bf5 4.c4).

3.e3 Nf6 4.Bb2 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 c6).

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

2.c4 e5

3.Bb2 d4 4.Nf3 Nc6 5.b5 Nb4?? (5...e4 6.bc6 ef3 7.Qb3=) 6.Ne5?? (Better is 6.a3 Nd5 7.cd5 Qd5 8.e3+–) 6...Bf5 7.Na3?? (7.d3 Qe7 8.g4 Bc8+/–) 7...c6?? 8.bc6 Nc6 9.Nc6 bc6 10.g3 d3 11.Qa4 de2? 12.Qc6+– Bd7 13.Qe4 Be7?? 14.Bg2+– Nf6 15.Qa8 Qa8 16.Ba8 0–0 17.Ke2 Ra8 18.Nb5 Bb5 19.cb5 Re8 20.Kf3 Nd5 21.Rac1 Nb4 22.Rc3 Nd5 23.Rd3 Nb4 24.Rd7 Bf6 25.Bf6 gf6 26.Ra7 Nc2 27.b6 Nd4 28.Kg2 Nc6 29.Rc7 Nd8 30.Rhc1 Nb7 31.Rc8 Rc8 32.Rc8 Kg7 33.Rc7 Na5 34.a4 f5 35.Ra7 Nc4 36.b7 1–0. Aliethah – NOAH1, Live Game Caissa's Web, 2004.

3.c5 b6 4.Ba3 c6 5.Nf3 f6 6.d4 e4 7.Nh4? b5?? 8.e3 f5?? 9.Qh5+/– Kd7 10.Qf5 Kc7+= 11.Qe5 Kb7 12.Nf5 Bf5 13.Qf5 Nh6 14.Qh3 Nd7 15.Nc3 g6 16.Nb5 a6? 17.Nc3+– Nf5 18.g4 Nh4 19.Be2 g5 20.f3 Nf3 21.Bf3 ef3 22.Qf3 Qe7 23.0–0–0 Nf6+/– 24.Rhf1 Ne4?? 25.Ne4+– de4 26.Qf7 Qf7 27.Rf7 Kc8 28.d5 cd5 29.Rd5 Rb8 30.Rg5 Rb7 31.Rb7 (31...Kb7 32.Re5+–) 1–0. bvboucher (2050) – ctessman (1885), net–chess.com, 2005.

3.cd5 Qd5 4.Bb2 Bb4 5.Nc3 Qd6 6.e3 Nc6 7.Nf3 Bg4 8.Be2 0–0–0 9.0–0 Qd2?? 10.Nd2+– (10...Bf5 11.Bc4+–) 1–0. gtate (1625) – jfx, net–chess.com, 2001.

2.c4 Nf6

3.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.c4).

3.e3 e5 4.c5? (4.Nf3 Bb4 5.Qa4 Nc6 6.Ne5 Rb8+=) 4...b6 (4...a5!?–+) 5.Qc2 (5.Nf3 e4 6.Nd4 bc5 7.bc5 Bc5–/+) 5...Be7 (5...bc5 6.bc5 Bd7–/+) 6.d4 (6.Nf3 e4 7.Nd4 0–0+=) 6...Nbd7 (better is 6...ed4 7.ed4 0–0–/+) 7.c6= Nf8 8.a3? (8.de5!? Bb4 9.Nd2=) 8...ed4 (8...Ng6 9.Nf3 e4 10.Ne5–/+) 9.ed4 Ne4 (9...Bg4 10.f3 Bh5 11.Bd3+=) 10.Nc3 Nc3 11.Qc3 Bf5 12.b5 (12.Nf3 Qd6+=) 12...Ne6+= 13.Nf3 0–0 14.Be2 Ng5 (14...Re8!?–/+) 15.Ng5 Bg5 16.0–0 Qf6 17.Bg5 Qg5 18.Bf3 Be4 19.Be4 (19.Qe3 Qe3 20.fe3 Bd3=) 19...de4+= 20.Qc4 Kh8 (20...Rad8 21.Rfe1 Rfe8 22.Rad1+=) 21.f4 (21.Rae1 Rae8=) 21...Qg4 (21...Qf5 22.d5=) 22.h3 (22.d5 f5 23.d6 cd6+=) 22...Qg6 (22...Qg3 23.d5 Rad8 24.Qe4+=) 23.f5 (23.f5 Qd6 24.Rae1+=) 1–0. zrenjanin (1955) – simsim314 (1655), gameknot.com, 2010.

3.e3 e6 4.a3 a6 5.d4 b6 6.Bd3 Be7 7.Nf3 0–0 8.Ne5 Nbd7 9.Bb2 Ne5 10.de5 Nd7 11.0–0 Bb7 12.f4 c5 13.Bc3 Qc7 14.Nd2 f6 15.ef6 Nf6 16.Bb2 Rad8 17.cd5 Nd5 18.Qh5? Nf6–+ 19.Bf6 Rd3 20.Be7? Qe7 21.Nc4–/+ b5 22.Na5 Bd5 23.Rfe1 cb4–+ 24.e4 Ba8 25.ab4 Qb4 26.Qe5 Qd4 27.Qd4 Rd4 28.Nb3 Re4 29.Re4 Be4 30.Nc5 Rf4 31.Ne6 Rf5 32.Ra6 Bd3 33.g4 Rf1 34.Kg2 b4 35.Rb6 Rb1–/+ 36.Ng5 b3?? 37.Rb8# 1–0. rla – jolaw, internet, 2007.

3.e3 Bf5 4.d4 c6 5.Nc3 e6 6.a3 h6 7.h3 Nbd7 8.Nf3 Be7 9.Bd3 dc4 10.Bc4 0–0 11.0–0 a5 12.b5 Nb6 13.Bd3 Nbd5 14.Nd5 Qd5 15.bc6 bc6 16.Bf5 ef5 17.Qc2 Rfc8 18.Ne5 Qe6 19.Rb1 c5 20.Qc4 cd4 21.Qe6 fe6 22.ed4 Nd5 23.Rb7 Rc2 24.Re1 Rac8 25.Rb1 a4 26.Nd3 R8c3 27.Nb4 Bb4 28.ab4 a3 29.Ba3 Ra3 30.Re6 Raa2 31.Re5 Nc3 32.Rb3 Rc1 33.Kh2 f4 34.f3 Raa1 0–1. donex7 (1810) – marekt (2085), gameknot.com, 2014.

2.d3 e5

3.Bb2 Bb4 4.c3 Bd6 5.Nd2 Nf6 6.g3 0–0 7.Bg2 Nc6 8.Ngf3 e4 9.de4–/+ de4 10.Ng5 e3–+ 11.fe3 Ng4 12.Ndf3 h6 13.Ne4 Ne3 14.Qd3 Ng2 15.Kf2 Bf5 16.Kg2 Qe7 17.Nfd2 Rae8 18.Rhf1 Be4 19.Ne4 Qe4 20.Qf3 Qc2 21.Rab1 Re2 22.Kh3 Rh2 23.Kg4 Qg6# 0–1. tomzr – pierre (2115), internet, 2006.

3.Bb2 Bd6 4.Nd2 Qe7 5.a3 Nf6 6.e4 de4 7.Ne4 Bf5 8.Ng3 Bg4=+ 9.Be2 Qd7 10.h3 Be6 11.Nf3 Nc6 12.b5 Nd4 13.Nd4 ed4 14.Bd4 Bg3 15.Bf6 gf6 16.fg3+= Qb5 17.0–0 f5 18.c4 Qc5 19.d4 Qa5 20.d5 Qc5 21.Kh2 Bd7 22.Bd3 0–0–0 23.Qb3 b6 24.Bf5+– Bf5 25.Rf5 Qe7 26.Qb5 f6 27.Qa6 Kb8 28.Qb5?? h5?? 29.a4 h4 30.g4+– Rh7 31.a5 Rf7 32.ab6 cb6 33.Rd1 Qd6 34.Kh1 Re7 35.c5 Qc5+/– 36.Qc5 bc5 37.d6 c4 38.Rf6+/– Red7 39.Kg1 Kb7+= 40.Kf1 c3 41.Rc1 Rc8 42.Rc2 Rc6 43.Ke2 Rcd6 44.Rd6 Rd6 45.Rc3 ½–½. gtate (1900) – rodnel (2005), net–chess.com, 2006.

3.e4 Bb4 4.c3 Bc5 5.Be3 Be3–+ 6.fe3 de4 7.d4 Qh4 8.g3 Qh6 9.h3 Qe3 10.Ne2 Nc6 11.Na3 ed4 12.Nc4 Qf3 13.Rh2 d3 14.Bg2 de2 15.Qd5 Qg3 16.Ke2 Nf6 17.Qd2 Qh2 (18.Ne3 Bh3–+) 0–1. IrishBouncer – michaelbuss, ChessWorld.net, 2005.

2.d3 e6

3.a3 c5 =+.

3.Bb2 Nc6 4.c3 Qf6 5.b5 Ne5 6.d4 Nc4=+ 7.Qc2 Nh6 8.Qb3 Bd6 9.Nf3 Ng4 10.Bc1=+ Bd7 11.h3 Nf2 12.Kf2+/– Qg6 13.a4 Qg3 14.Kg1 h6 15.e3+– Na5 16.Qd1 0–0–0 17.Nbd2 g5? 18.Rb1 h5 19.Nb3 Nb3 20.Qb3 g4 21.Be2?? gf3 22.Bf3 Rdg8 23.a5?? Qf3 24.Rh2 Bh2 (25.Kh2 Qg2#) 0–1. Gregor123 – rikilatic, mySchach.de, 2004.

3.c3 (--> 1.b4 e6 2.c3 d5 3.d3).

3.Nf3 Bb4–/+ 4.Bd2 Bf8 5.Nc3 Nf6 6.a4 c5 7.g3 Nc6 8.e3 Bd6 9.d4 b6 10.h3 e5?? (10...0–0 11.Nb5–+) 11.h4?? (11.Bb5 Bd7 12.Bc6 Bc6 13.de5 d4 14.ed4 cd4 15.ed6 dc3 16.Bc3 0–0=) 11...Be6?? (11...e4 12.Bb5 Bd7 13.Bc6 Bc6 14.Ne5 Be5 15.de5–+) 12.Nb5?? (better is 12.Bb5 Bd7 13.Bc6 Bc6 14.de5=) 12...0–0 13.g4? (13.Nd6 Qd6 14.de5 Ne5 15.Ne5 Qe5 16.Bg2–+) 13...Ng4 (13...cd4 14.Nd6 de3 15.Be3 Qd6 16.g5–+) 14.Nd6 Qd6 15.de5 Nce5 16.Ne5 Qe5 17.Rb1 (17.Bg2 d4 18.Ra3 de3 19.Be3 Rad8–+) 17...Qe4 (better is 17...Qf5 18.f3 Qe5–+) 18.Bd3?? (18.Rg1 Qf5 19.Rg2–+) 18...Qh1 19.Bf1 (19.Ke2 Qh4 20.Qg1 c4–+) 19...Qh4 (better is 19...Nh2 20.Qe2 Bg4 21.Rc1 Be2 22.Ke2–+) 20.Qe2 (20.Qf3 d4 21.Qf4 g5–+) 20...Rfe8 21.Kd1 (21.Bg2 d4 22.e4 Bc4–+) 21...Bf5 22.Bg2 (22.Kc1 Qf2 23.Qf2 Nf2–+) 22...Be4 (better is 22...Nf2 23.Kc1 Qa4 24.Bc3 Qa3 25.Bb2 Qe3 26.Qe3 Re3 27.Ba1–+) 23.f3 Bf5 (better is 23...Bc2 24.Kc2 Ne3 25.Be3 Qa4 26.Kc1–+) 24.fg4 Bg4 25.Bf3 d4 (better is 25...Qg3 26.Bg4 Qg1 27.Qe1 Qg4 28.Qe2 Qa4–+) 26.Bg4 Qh1 27.Qe1 Qg2 28.c3 (28.Bd7 Re7 29.Bb5 de3 30.Bc3–+) 28...Qg4 29.Qe2 Qf5 30.Rc1 (30.Kc1 de3 31.Be1–+) 30...Qg5 (better is 30...de3 31.Be3 Rad8 32.Ke1 Rd3 33.Bf2 Re2 34.Ke2 Qe4 35.Kf1 Rd2 36.Kg1 Qg4 37.Kf1 Qf3 38.Kg1 Qf2 39.Kh1 Qg2) 31.c4 0–1. Freres,Jennifer – Colignon,Samuel, Fleurus op, 2008. (=1.d3 d5 2.b4 e6)

2.d3 Nf6

3.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.d3).

3.Nf3 Nbd7 =+.

3.Nf3 Bg4 4.Bg5 Nbd7 5.c3 e5 6.Nbd2 Be7 7.h3 Bh5 8.g4 Bg6 9.Nh4 0–0 10.Ng6 fg6 11.Bg2 e4 12.de4+= Ne4 13.Ne4+/– de4 14.Qd5 Kh8 15.Be7 Qe7 16.Qb7 e3 17.0–0 ef2 18.Rf2 Qe3 19.Raf1 Rf2 20.Rf2 Rf8 21.Bf3 Qc3 22.Qa7 Qb4 23.Qc7 Nf6 24.Qc1 Qb8 25.e4 Re8 26.Re2 h6 27.Kg2 Nd7 28.a4 Ne5 29.Qb2 Nf3 30.Kf3 Rf8 31.Kg2 Qf4 32.Qd2 Qf1 33.Kh2 Rf3 34.Rg2 Qa1 35.Qd8 Kh7 36.Qd6 Qe1 37.Qd4 g5 38.Qg1 Rh3!! 39.Kh3 Qh4 0–1. tonycally – JF_, ChessWorld.net, 2004.

3.f4 e6 4.c3 Bd6 5.Nf3 0–0 6.g3 b6 7.Bg2 Bb7 8.h4 Nbd7 9.Ng5 Re8 10.e4 de4 11.Ne4 Ne4 12.Be4 Qc8 13.Qf3=+ Bd5 14.Kf2 Nf6–/+ 15.Bd5 ed5 16.Bd2 Qf5 17.Na3 a6 18.Nc2 c5 19.a3 Re7 20.Rae1 Rae8 21.Re7 Re7 22.Re1 Re1 23.Be1 Ng4 24.Kg2 h5 25.Qe2 Kf8 26.Bd2 c4 27.Ne1 b5 28.dc4 dc4 29.Qf3 ½–½. Aasum,Anker – Hermann,HJ, corr SOK–90–55, 1990.

2.d4 a5

3.b5 c6 =+. Adam.

3.b5 Bf5 =.

3.Bd2 ab4 4.Bb4=+ b6 5.a3 Bb7 6.e3 Na6 7.g3?? Nb4–+ 8.c3 Nc6 9.Bb5 g6 10.Bc6 Bc6 11.Ne2 Ba4 12.Qd2 c5 13.dc5 bc5 14.f4 Bg7 15.Ra2 Nf6 16.h4 Ne4 17.Qc1 d4 18.ed4 cd4 19.cd4 Bd4 20.Nd4 Qd4 21.Re2 Ng3 22.Rd2 Qe3 23.Re2 Qe2# (23...Ne2?! 24.Qe3 Bc6 25.Rh2+=) 0–1. ashipham – maf, net–chess.com, 2002.

3.Bd2 Nc6 4.ba5 Nd4 5.Nf3 Nf3 6.ef3 –/+.

2.d4 b6

3.c4 e6 4.c5 Bb7 5.a4 a6 6.e3 Nf6 7.Bd3 bc5 8.bc5= c6 9.Ne2 g5 10.Nd2 Bg7 11.0–0 h6 12.Nb3 Nbd7 13.Bd2 Ne4 14.Ba5 Qc8 15.f3 Nef6 16.Bb6 Nb6 17.cb6 a5 18.Nc5 Nd7 19.Qb1 Nc5= 20.dc5 Ba1 21.Qa1 Rf8 22.g4 Ba6–/+ 23.Ba6 Ra6 24.Rb1 Qb7 25.Qf6 Ra8 26.Nd4+= Kd7? 27.Qh6 Rg8 28.Qf6 Raf8 29.Kg2 Rg6 30.Qe5 Re8?? 31.h3 Reg8?? 32.Qg3 f6?? 33.Qd6+– Kc8 34.Nc6 Re8 35.Na7 (35...Qa7 36.ba7 d4 37.a8Q#) 1–0. dadio – beammeupscotty (2175), net–chess.com, 2004.

3.e3 Bb7 4.c4 dc4=+ 5.Nf3 b5 6.Be2 e6 7.a3 c6 8.Nc3 Nf6 9.0–0 Be7 10.Qc2 a5 11.Bb2 ab4–+ 12.ab4 Ra1 13.Ra1 Na6 14.Ne5 Nb4 15.Qd2 Bd6 16.Ba3–/+ Nbd5 17.Bd6 Qd6 18.Ra7 Qc7 19.Bf3 0–0–+ 20.e4 Nc3 21.Qc3 Ra8 22.Qa3 Ra7 23.Qa7 Ne8 24.Ng4 Bc8 25.Qc5 Qd6 26.Qa7 Qc7 27.Qc5 Ba6 28.Ne5 Qd6?? 29.Qb6?? Nc7?? 30.Nc6?? h6= 31.e5 Qa3 32.h3 Ne8 33.Na5?? c3–/+ 34.Be4?? Qc1–+ 35.Kh2 Qf4 36.Kg1 Qe4 37.Qa6 Qd4 38.Qb5 Kf8 39.Nc6?? Qd5 40.Qb4+– Kg8 41.Qc3 Kh8 42.Nb4 Qb5 43.Qc8 Kg8 44.g3 Kf8 45.Qc3+= Qa5 (45...Ke7 46.Nc2=) ½–½. joelynnturner – retard, internet, 2007.

2.d4 c5

3.dc5 e5 4.e3 e4 5.Bb5 Bd7 6.Nc3 Bb5 7.Nb5 Nf6 8.Bb2+/– a6? 9.Nd4?? Be7 10.Nh3 0–0 11.f3 Nc6 12.fe4 Ne4 13.0–0 Nb4=+ 14.Qg4 Rc8?? 15.Ne6!+– fe6 16.Qg7# 1–0. driou – theeagle (1630), net–chess.com, 2004.

3.dc5 Nf6 4.a4 Qd7 5.e3 a6 6.Nc3 g6 7.Nf3 Bg7 8.Ng5?? 0–0 9.e4 Nc6 10.Bd3?? d4?? 11.b5 ab5 12.Nb5= e5 13.0–0 Qg4 14.h3 Qd7 15.f4+/– Nh5 16.fe5 Ne5 17.Ba3 Re8 18.c4 Bh6 19.Nd6 Re7?? 20.Ndf7?? Nf7= 21.Qf3?? Ng5–+ 22.c6 Nf3 23.Kh1 Ng3# 0–1. driou – theeagle (1775), net–chess.com, 2006.

2.d4 Qd6

3.c3 e5 4.de5 Qe5 5.Nf3 Qf6 6.Qd5 Ne7 (6...Bb4!? 7.Qe4 Be7=) 7.Qe5 Qe5 8.Ne5 f6 9.Nf3 Nf5 (9...a5 10.b5+/–) 10.e3 Bd6 11.Bc4 a6 12.a4 c6 (12...Nd7 13.0–0+/–) 13.0–0+– b5? (better is 13...Bc7+–) 14.ab5 c5 (14...Bc7 15.bc6 Nc6 16.e4+–) 15.ba6 (15.e4 Ne7 16.Rd1 Bc7 17.bc5 Bb7+–) 15...Ba6 16.Ba6 (better is 16.e4 Bc4 17.Ra8 Bf1 18.Kf1+– (18.ef5?! Bd3 19.bc5 Be4+–)) 16...0–0?? (better is 16...Ra6 17.Ra6 Na6+–) 17.b5 (better is 17.Bc4 Kh8 18.Ra8 cb4 19.cb4 Bb4+–) 17...Rf7 (17...Rd8 18.e4 Ne7 19.c4+–) 18.Bb2 Na6 19.ba6 c4 20.Nbd2 Rc7 21.Ra4 Rca7 22.Nc4 Ra6 23.Ra6 Ra6 24.Ra1 Rc6 25.Nd6 Nd6 26.Ra4 Nc4 27.Ba3 g5 28.Bb4 Rc7 29.h3 h5 30.Nd4 Nb2 31.Ra6 (31...Kf7 32.Ne6+–) 1–0. zggenev – Goof, ChessWorld.net, 2005.

3.Nc3 Qb4–/+ 4.a3?? (better is 4.Qd2 Nf6 5.Nf3–/+) 4...Qc3–+ 5.Bd2 Qd4 6.Nf3 Qf6 7.h3 d4 (7...Bf5 8.Rb1 b6 9.e3–+) 8.h4 (8.Bg5 Qf5 9.Qd4 Nc6–+) 8...Nc6 9.a4 Qd6 (9...e5 10.c3–+) 10.a5 b5 (10...e5 11.c3–+) 11.e3 Bg4 (11...a6!? 12.Bd3–+) 12.Bb5 de3 13.fe3 Qg3 14.Ke2 (14.Kf1 Bd7 15.Nd4 Nd4 16.Bd7 Kd7 17.ed4–+) 14...Qg2 15.Kd3 Bf3 16.Bc6 Bc6 17.Bc3 0–0–0 (17...Bb5 18.Kd4 Rd8 19.Ke5 Qg3 20.Ke4 Rd1 21.Rad1 Qg4 22.Ke5 f6 23.Kd5 e6) 18.Kc4 Qg4 (better is 18...Rd1 19.Rhd1 Qc2–+) 19.Qg4+= e6 20.Qe4?? (better is 20.Bg7 Bd5 21.Kb5 a6 22.Ka4+=) 20...Be4–+ 21.Rhd1 Bd5 22.Kb5 c6 23.Ka4 Rd7 24.Bb4 (24.Rab1 f6–+) 24...c5 25.c3 (25.Bc3 Ne7 26.Rg1 Nf5–+) 25...cb4 26.cb4 Bc6 (26...Nh6!? 27.Rac1 Kd8 28.Re1–+) 27.b5 Bf3 (27...Rd1 28.Rd1 Be4 29.Kb3–+) 28.Rdc1 (28.Rd7 Kd7 29.Rf1 Bh5–+) 28...Kb8 29.Rf1 Be4 30.Rfd1 Bc2 0–1. Clark,Steph – Flavell,Guy, Worksop College Inter–House Teams, 2006. (=1.d4 d5 2.b4 Qd6)

2.d4 Bd7

3.c3 a5 4.Qb3 Nf6 5.ba5 Ra5 6.Qb7 Bc6 7.Qb4 (better is 7.Qb2+=) 7...Rb5–/+ 8.Qa3 e5 9.e3?? (9.de5 Ba3 Discovered attack) 9...Ba3–+ 10.Na3 Ra5 11.de5 Ne4 12.c4 Nc3 (better is 12...Qe7 13.Rb1 0–0 14.Rb3–+) 13.Bd2 (13.Bb2–+) 13...Ra3 14.Ne2 Ra2 (better is 14...Ne2 15.Be2 Qg5 16.0–0–+) 15.Bc3 Ra1 16.Ba1 dc4 17.Nf4 0–0 (17...Qe7 18.Bc3–+) 18.Bc4 Bg2! 19.Ng2 c5 (19...Qd7!? 20.–0–+) 20.e6 Qa5 21.Ke2 fe6 22.Be6?? (22.Nf4 Nc6 23.Rg1 Rf4 24.ef4 Nd4 25.Bd4 cd4 26.Rd1 Qh5 27.Ke1–+) 22...Kh8 23.Nf4 Rd8 (better is 23...Qa6 24.Kd2 Rf4 25.ef4 Qd6 26.Kc2 Qe6–+) 24.Rg1+= Rd2 25.Kf3 Qa8 26.e4?? (better is 26.Nd5 Qb7 27.Rg7 Qg7 28.Bg7 Kg7 29.Nc3+=) 26...Qa3–+ 27.Kg4 (27.Kg2 Nc6 28.Bd5–+) 27...Rf2 28.Kh4 (28.Ng6 hg6 29.Rg3–+) 28...Rf4 29.Kh5 Qf3 30.Bg4 Qe4 31.Rd1 Qe8 32.Kg5 Qf7 33.Rd8 Qf8! 34.Rf8 Rf8 35.h4 h6 36.Kg6 Kg8?? 37.Bg7 Rd8?? 38.Be6 1–0. Pera – Djpnola, playchess.de, 2004. (=1.d4 d5 2.b4 Bd7)

3.e3 Nf6 =.

3.Nf3 e6=+ 4.a3 h6 5.e3 Nc6 6.Bd3+= Bd6 7.0–0 Nf6 8.Bd2 e5 9.de5 Ne5= 10.Ne5 Be5 11.c3 Ng4 12.f4 Bd6 13.h3 Nf6 14.Qf3 h5 15.c4 c6 16.c5 Bc7 17.Bc3 Ng4?? 18.hg4+– hg4 19.Qg3 Qh4 20.Kf2 Qg3 21.Kg3 0–0–0 22.a4 f6 23.Kf2 Rh6 24.Ke1 Rdh8 25.Nd2 Rh2 26.Rg1 Rh1 27.Rh1 Rh1 28.Nf1 Rg1 29.Kf2 Rh1 30.Ng3 Ra1 31.Ba1 a5 32.b5 cb5 33.Bb5 Bb5 34.ab5 a4 35.Nh5 Ba5 36.Ng7 a3 37.g3 Bd2 38.Ke2 Bb4 39.Bd4 Ba5 40.b6 Kd7 41.Nf5 Bb4 42.Nd6 Kc6 43.e4 Bc5+/– 44.Nf5 Bd4 45.Nd4 Kc5 46.Nb3 Kc4= 47.Na1 Kc3?? 48.ed5+– Kb2 49.d6 Ka1 50.d7 a2 51.d8Q Kb2 52.Qd4 Kb3 53.Qf6 Kc2 54.Qe5 Kb1 55.f5 (55...Kc2 56.Qe4 Kb3 57.Qd5 Ka3 58.Qb7+–; 55.Qe4 Kc1 56.Qb7 Kc2 57.Qe4 Kc1 58.Qc4 Kb1 59.Kd2 a1N 60.Qc1 Ka2 61.Kc3 Nc2 62.Qb2#) 1–0. icewater – LOBOKNIGHT, Caissa.com, 2004.

2.d4 Nf6

(--> 1.b4 Nf6 2.d4 d5).

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

3.Bb2 e6 4.a3 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 d5 4.d4).

3.c3 e6 (--> 1.b4 Nf6 2.d4 e6 3.c3 d5).

3.Nf3 e6 4.a3 (--> 1.b4 e6 2.a3 Nf6 3.Nf3 d5 4.d4).

3.Nf3 g6 4.Bb2 Bg7 5.e3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.d4).

2.e3 a5

3.a3 (--> 1.b4 e5 2.a3 d5 3.e3).

3.Ba3 c6 4.b5= e5 (4...Nf6 5.Nf3=) 5.Bf8 Kf8 6.d4 Qe7 (6...e4 7.c4=) 7.Nc3 (7.de5 Qe5 8.c3 Qf6=) 7...ed4 (7...Nf6 8.de5 Qe5 9.Nge2=) 8.Qd4 Nf6 9.Be2 (9.Nf3 c5 10.Qe5 Qe5 11.Ne5 Nbd7+=) 9...Bd7 (9...Bf5 10.Rc1=) 10.Nf3+= cb5 (10...Bf5 11.Qd2+=) 11.Nb5 (11.Nd5 Nd5 12.Qd5 Bc6+=) 11...Nc6 (11...Bb5 12.Bb5 Nc6 13.Bc6 bc6 14.0–0+=) 12.Qd2 (12.Qd1 Kg8+=) 12...Ne4 (12...Nb4 13.Nbd4=) 13.Qd5+/– Nb4 (13...Qb4 14.Nd2 Nd2 15.Qd2 (15.Qd7? Nc4 16.c3 Qb5–+) 15...Qd2 16.Kd2+/–) 14.Qb7 Rc8 (14...Nc2 15.Kf1 Rc8 16.Rd1+/–) 15.0–0 (15.Nbd4 a4+–) 15...Rd8 (15...Bg4 16.Qe7 Ke7 17.c4+–) 16.Nbd4 (16.Rad1 Na2 17.Qc7 Nb4+–) 16...Bg4 (16...Nc3+–) 17.Qe7 Ke7 18.a3 Kf6 (18...Nd5 19.Nc6 Kf6 20.Nd8 Rd8+–) 19.ab4 Bf3 (19...ab4 20.Rfb1 Ra8 21.h3 Ra1 22.Ra1+–) 20.gf3 (better is 20.Bf3 Nd2 21.ba5 Nf1 22.Kf1 Ra8+–) 20...Ng5 (20...Nc3 21.Bc4 ab4 22.Ra6 Kg5 23.f4 Kg4 24.f3 Kh3 25.Rf2 Rd4 26.ed4+–) 21.Ra5 (better is 21.ba5 Nh3 22.Kh1 Nf4+–) 21...h6 (21...Ne6 22.Ra6+–) 22.Ra6 (better is 22.Rf5 Kg6 23.Bd3+–) 22...Ke5 (22...Ne6+–) 23.f4 Kd5 24.fg5 (24.Rfa1 Nh3 25.Kf1 Rc8 26.R1a5 Rc5 27.Rc5 Ke4 28.Bd3) 24...hg5 25.Bf3 (25.Rfa1 Ke5 26.Nf3 Kf5 27.R1a5 Rd5 28.Rd5 Kg4 29.Rg5 Kh3 30.Rg3) 25...Kc4 Plans Rh6 26.b5 (26.Rc6 Kb4 27.Rb1 Ka5 28.Rb5 Ka4 29.Ra6) 26...f5 27.Rc6 Kb4 28.Rb1 Ka4 (28...Ka5 29.Ra6) 29.Ra6 1–0. marekt – tdkt, GameColony.com, 2002.

3.Ba3 e5!? +=.

3.ba5 e5 4.Nf3 Nc6 5.Be2 Nf6 6.Nc3 d4 7.ed4 ed4 8.Nb5 Bc5 9.0–0 0–0 10.c3?? d3–+ 11.Bd3 Qd3 12.Nc7 Ra5 (13.a4 Bg4–+) 0–1. hansson – McGhee, ChessWorld.net, 2004.

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

3.b5 e5 =.

2.e3 b5

3.Bb2 e5 4.Bb5 c6 5.Ba4 Nf6 6.a3 Bd6 7.Ne2 Bb7 8.0–0 0–0 9.Bb3 Nbd7 10.c4 dc4 11.Bc4 Ng4 12.h3 Ngf6 13.d4 Nb6 14.Bf7! Rf7 (14...Kf7 15.de5) 15.de5 Nc4 16.ed6 Nb2 17.Qc2 Qd6 18.Qb2 Nh5 19.Qd4 Qe7 20.Nbc3 Qg5 21.Nf4 (better is 21.Ne4 Qe7 22.Rad1+–) 21...Nf4+/– 22.ef4 Rf4 23.Ne4 c5 24.Qc5 (< 24.Ng5 cd4 25.Ne6 Re4+–) 24...Qc5 25.Nc5 (< 25.bc5 Re4 26.Rfd1 Bc6–/+) 25...Bd5 26.Rad1 Bc4 27.Rfe1 Raf8 28.f3 Bb5 (28...R4f7+–) 29.Ne6 (29...Rc4 30.Nf8 Kf8 31.Re5+–) 1–0. Steingraeber,Barbara (1770) – Neffgen,Dieter, T0076 DESC, 2003.

3.Nf3 a6 4.Bb2 Nc6 5.c3 Bg4 6.Be2 Bf3 7.Bf3+= e5 8.Qb3 e4= 9.Be2 Be7 10.d3 Nf6 11.Nd2 a5?? 12.de4+/– a4 13.Qc2 de4? 14.Bb5+– Qd6 15.a3 0–0 16.Rd1 Ne5 17.Ne4 Qe6 18.Nf6 Qf6 19.Ba4 Ng4? 20.0–0 Qh4? 21.h3 Bd6 22.Kh1 Nh2?? 23.Rd4 Qh6 24.Rfd1 Nf3 25.gf3 Qh3 26.Kg1 Bh2 27.Kh1 Be5 28.Kg1= Bd4?? 29.cd4+– Qf3 30.Bc6 Qg4 31.Kf1 Rad8 32.Qc3 Rd6?? 33.d5 Qd1–+ 34.Kg2 Rg6 35.Kh3 Qg4 36.Kh2 Rh6# (36...Qg2#) 0–1. pinecrest1981 – Bute, Live Game Caissa's Web, 2006.

2.e3 Nd7

3.c4 Ngf6 4.d4 (4.Nf3!?+=) 4...e5–/+ 5.a3 ed4 6.ed4 a5 7.ba5 dc4 (7...Be7!?–/+) 8.Bc4+= Bd6 9.Qe2 Qe7 10.Qe7 Ke7 11.Ra2 Re8 12.Re2 Kf8 13.Bd2 Ne4 14.Bb4 c5 15.dc5 Bc5 16.Nh3 Bb4 17.ab4 Ne5 18.Bb5?? (18.Re4 Bh3 19.0–0 Bf5+=) 18...Re7?? (better is 18...Bh3 19.gh3 Nf3 20.Kd1 Rad8 21.Kc1 Nd4–+) 19.Nf4 Bf5 20.Nd5 Rc8 21.0–0 Re6 22.Ne3 Bg6 23.f4 Nd6 24.f5 Bf5 25.Nf5 Nb5 26.Rd2 g6 27.Rd5 Nc7 28.Re5 Re5 29.Nd6 Rce8 (29...Rb8 30.Rf7 Kg8 31.Rc7 Re1 32.Kf2 Rb1 33.Nb7 (33.Rb7? Rb7 34.Nb7 Rb4–+) 33...Rf8 34.Ke3 Rb3 35.Ke2 Rb4 36.a6+=) 30.Rf7+= Kg8 31.Rc7 Re1 32.Kf2 R8e2 33.Kf3 Re3 34.Kf4 Re6 35.Rb7 (35.Nc4!? Rf1 36.Kg5 Rb1 37.Rb7+=) 35...Rf1= 36.Kg5 Rd6 37.Nc3 Rf5 38.Kh4 Rd4 39.g4 Rff4 (39...Rc4!? 40.Nd1 Rff4=) 40.a6+= Rg4 41.Kh3 h5 (41...Rb4?? 42.Rb4 Rb4 43.a7+–) 42.Ne2 Rd3 (42...Rb4? 43.a7 Ra4 44.Rb8 Kf7 45.a8R+–) 43.Ng3 Ra3 44.a7 Rf4 45.b5 h4 46.b6 hg3 47.hg3 Rff3 48.Rb8 Kg7 49.Rc8 Rg3 50.Kh2 Rgb3 51.Rc7?? (better is 51.a8Q Ra8 52.Ra8 Rb6 53.Kg3=) 51...Kh6–+ (51...Kh6 52.Rc2 Rb6–+) 0–1. Pietrzak,Wojciech – Koziol,Pawel, Warszawa Poland, 2000.

3.Nf3 e5 4.Bb2 (--> 1.b4 d5 2.Bb2 Nd7 3.e3 e5 4.Nf3).

2.e3 f5

3.c4 c6 4.Nf3 e6 5.Bb2 Nf6 6.Be2 Bb4 7.0–0 0–0 8.Ne5 Nbd7 9.d4 Ne4 10.f3 Nef6 11.a4 Ba5 12.cd5 ed5 13.Nc3 Qe7 14.Ba3 Bb4 15.Bb4=+ Qb4 16.Qd3 g6 17.e4? fe4 18.fe4–/+ Ne5 19.de5 Ne4 20.Rf8 Kf8 21.Bf3?? Qc3 (22.Rd1 Qe5–+; 21...Qc5 22.Qd4 Qd4 23.Kh1 Nf2 24.Kg1 Nh3 25.Kh1 Qg1 26.Rg1 Nf2#) 0–1. gtate (1940) – leonine (2360), net–chess.com, 2004.

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

2.e3 g6

3.Bb2 f6 4.Nf3 Bg7 5.c4+= dc4 6.Bc4 e6 7.Nd4 Qe7 8.Ba3 e5+= 9.b5 Qd7 10.Ne6+/– Nh6 11.Nc3 c6 12.bc6 bc6 13.Ne4 Bf8 14.Nf6 (14.Nf6 Kf7 15.Nd7 Ba3 16.Nc7 Kg7 17.Ne5+–) 1–0. pierre – opponent, internet, 2008.

3.Bb2 Nf6 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 d5).

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

2.e3 h5

3.Bb2= h4 4.c4 (4.Nf3 h3=) 4...h3 (4...Nf6 5.a3=) 5.Nh3 c6 (5...Bh3!? 6.gh3 Nf6+=) 6.Nf4+/– g5?? (better is 6...Nf6+/–) 7.Bh8+– f6 (7...gf4 8.ef4 Qd6 9.cd5 Qb4 10.dc6 Nc6+–) 8.Qh5 Kd7 9.Ng6 Qe8 (9...Bh6 10.h4 Kd6 11.Nc3+–) 10.Qh7 a5 (10...Bh6 11.cd5 cd5 12.Ne7 Ne7 13.Qh6+–) 11.Qg8 Kd6 (11...Bh6 12.Qh7 Bf8 13.Bf6+–) 12.Nf8 (12.c5!? Kc7 13.Nf8 Na6+–) 12...dc4 13.Nc3 Nd7 14.Ne4 Kc7 15.Ne6 (15.Ne6 Kb8 16.Qe8+–) 1–0. marekt – NN, GameColony.com, 2002.

3.h4 b5 4.Bb5+/– c6 5.Ba4 e6 6.a3 Bd6 7.Nf3 Ba6 8.d3 (8...Bb5 9.Bb5 cb5 10.Nc3+/–) 1–0. kingsknight59 – arian1230, ChessWorld.net, 2005.

3.h4 Bg4!? 4.f3 Bf5 =+.

2.f3 e6

3.a3 Bd6 4.g3 Nf6 5.e3 a5 6.b5 –/+.

3.b5 Bd6 4.e4 (4.Nh3!?–/+) 4...Qh4–+ 5.g3 (better is 5.Ke2 de4 6.Nc3–+) 5...Bg3! 6.Ke2 (6.hg3 Exploits the pin 6...Qh1) 6...Bd7 (6...Nf6 7.ed5 Qc4 8.d3–+) 7.d3 (7.a4 de4 8.Bg2 Be5–+) 7...Be5 (7...de4 8.Nc3 ed3 9.Qd3–+) 8.c3 de4 9.fe4 Bb5 10.Nd2 (10.Bg2 Nc6 11.a4 Ba6–+) 10...Bc3 11.Rb1 Nc6 12.Qe1 (12.Ngf3 Nd4 13.Nd4 Bd4 14.Qc2–+) 12...Qg4 13.Ngf3 Nd4 14.Kf2 (14.Kd1 Ba4 15.Rb3 Bb3 16.ab3 Bd2–+) 14...Nf3 15.Nf3 (15.Qe3 Bd4 16.Nf3 Be3 17.Be3 Qh5–+) 15...Be1 16.Ne1 (16.Ke3 g5 17.Rb5 Qf4 18.Ke2 Qc1 19.Ne1 b6–+) 16...Qh4 17.Ke2 Qe4 18.Kf2 Qh4 (18...Qh1!? 19.Rb5 Qh2 20.Bg2–+) 19.Ke2 Bd3! 20.Kd3 A deflection (20.Nd3 Qe4 Theme: Double Attack) 20...Qe1 21.Bg2 Rd8 22.Kc2 Qe2 23.Kc3 Black now must not overlook the idea Bb2 23...Rd3 24.Kc4 (24.Kb4 Qg2 25.Rb3 a5 26.Ka3 Qh1 27.Kb2 Qh2 28.Kb1 Rd1 29.Rc3 h5 30.a3 h4 31.Rc2 Qd6 32.Rc3 h3 33.Ka2 h2 34.Rb3 h1Q 35.Rb5 Rh2 36.Kb3 Qd3 37.Ka4 Qc6 38.Ka5 Qdb5) 24...b5! 25.Kb4 (25.Kb5 Deflection from b3 25...Rb3 A double attack) 25...Rd4 26.Kc3 (26.Kb3 Qd3 27.Kb2 Rb4 28.Ka1 Rb1) 26...Qd3 27.Kb2 Rb4 28.Ka1 Rb1 0–1. Doeh,Cole Adam – Reuser,Robert, IECG, 1995.

2.f4 a5

3.b5 c6 4.e3 Nf6 5.Nf3 Bg4 6.Bd3 Nbd7 7.0–0 e5 8.fe5 Ne5 9.Be2 Nf3 10.Bf3 Bf3 11.Qf3 cb5 12.Nc3 b4 13.Ne2 Bd6 14.Bb2 Be7 15.Nf4 0–0 16.Qg3 g6 17.Qf3 Ne4 18.Qe2 Rc8 19.Rac1 a4 20.Bd4 Bc5 21.Ba1 d4 22.Kh1 de3 23.de3 Qh4 24.Qf3 Nd2 25.Qe2 Ne4 26.Rf3 Rfe8 27.Rcf1 b6 28.Nd5 f5 29.Qb5 a3 30.g3 Qd8 31.Qc4 Kf8 32.Rf5 gf5 33.Rf5 1–0. snowcert (2460) – cristero (2465), net–chess.com, 2014. (=1.f4 d5 2.b4 a5)

3.b5+= Nf6 4.Bb2 g6 5.Nf3 Bg7 6.e3 0–0 7.c4 dc4 8.Bc4 Nbd7 9.0–0 Nb6 10.Be2 a4 11.Bd4 Nbd5 12.Na3 Bf5 13.Nh4 Bc8 14.Nc4 Bh6 15.Bb2 Nb4 16.a3 Nd3 17.Rb1 Be6 18.Qc2 Bc4 19.Qc4 Nb2 20.Rb2 Qd6 21.Ra2 e5 (21...Nd5!?=) 22.fe5+/– Qe5 23.Nf3 Qe7 24.Rc1 (24.Bd1 Rfe8+=) 24...Rfc8 25.Bd1 c6 26.Ba4 Be3 27.de3 (better is 27.Kh1 Bf2 28.bc6 bc6 29.d3+=) 27...Qe3–/+ 28.Kf1 Ra4! 29.Qc3 (29.Qa4 Qd3 Double attack (29...Qc1 Deflection; 29...Qc1 Overloading)) 29...Qe6 30.Re2 Re4 31.Re4 Ne4 32.Qc2 Qd5 33.a4 Rd8 34.bc6 bc6 35.Qc4 (35.Qc6 Qd3 36.Kg1 Qd1 37.Ne1 Qd4 38.Kh1 Nf2 39.Kg1 Nh3 40.Kh1 Qg1) 35...Qf5 (35...Ra8!?–/+) 36.Qc6= Qf4 37.Re1 Nd2 38.Kg1 Nf3 39.gf3 Kg7 (39...Rd3!?+=) 40.Qc3= Kg8 41.a5 h5 42.a6 Kh7 43.a7 Rd2 (better is 43...Ra8 44.Ra1 h4=) 44.Qd2?? (better is 44.Kf1 Rd8 45.Ra1+/–) 44...Qd2–/+ 45.a8Q Qe1 46.Kg2 Qe2 47.Kg1 Qd1 48.Kg2 Qd2 49.Kg1 Qd4 50.Kg2 h4 51.Kh3 g5 52.Qc8 Qd3 (52...f6!?–+) 53.Kg4–/+ f6 54.Qe6 Qg6 55.Qe7 Kh6 (55...Kg8!?–/+) 56.Qf8+= Kh7 57.Qe7 Kg8 58.Qe6 Qf7 59.Qc8 Kg7 60.Qf5 Qc7 61.Kh5 Qf7 62.Kg4 Kh6 63.Kh3 Kg7 (63...Qe7 64.Kg4–+) 64.Kg4–/+ Qe8 65.Kh3 Qc6 66.Kg4 Kh6 67.Kh3 Qc3 68.Kg2 Qe5 69.Qc8? (better is 69.Qd3!?–+) 69...Qe2 70.Kg1 Qf3 71.Qe8 Qd1 72.Kg2 (72.Kf2 Qd4 73.Kg2 Qg4 74.Kf2 Qf4 75.Kg1 f5–+) 72...Qd2 (72...h3 73.Kf2 Qd2 74.Qe2 Qe2 75.Ke2 g4–+) 73.Kh3 (73.Kg1–+) 73...Qd3 (73...Qd3 74.Kg2 h3 75.Kg1 Qd1 76.Kf2 Qd2 77.Qe2 Qe2 78.Ke2 g4–+) 0–1. Bogdanov,R (2045) – Dauletova,G (2215), Taganrog RUS, Vl. Dvorkovich Mem, 2014. (=1.f4 d5 2.b4 a5)

2.f4 Nc6

3.b5 Na5 4.e3 c6 5.Nf3 Nf6 6.Nc3 h6 7.Bd3 e6 8.0–0 Be7 9.Ne5 0–0 10.a4 c5 11.Ba3 c4 12.Be7 Qe7 13.Be2 b6 14.Qc1 Nd7 15.Qe1 f6?? (better is 15...Ne5 16.fe5 Qg5+=) 16.Ng6+– Qf7 17.Nf8 Nf8 18.Rf3 Bb7 19.Rh3 Qd7 20.Bg4 d4 21.ed4 Qd4 22.Qe3 Rd8 23.Rd1 e5 24.Qd4 Rd4 25.Ne2 Rd6 26.fe5 fe5 27.Re3 e4 28.Nc3 a6 29.ba6 Ba6 30.Ne4 Rd8 (30...Rd4 31.c3 Rd3 32.Rd3 cd3 33.Nd6+–) 31.Rb1 b5 (31...Bb7 32.Rb6 Rd4 33.Bf3+–) 32.ab5 Bc8 33.Bc8 Rc8 34.Ra1 Nb7 35.Rc3 Ne6 36.Ra7 (36.Ra7 Nbd8 37.Nd6+–) 1–0. b4_player – manne, casual, 2013. (=1.f4 d5 2.b4 Nc6)

3.b5 Nd4 4.e3 Nf5 5.Nf3 Bd7 6.Nc3 e6 7.Bd3 Nge7 8.0–0 Nd6 9.Rb1 Nef5 10.Ba3 Be7 11.g4 Nh6 12.Nd4 0–0 13.Qf3 Kh8 14.Qh3 Ne4 15.Be7 Qe7 16.Ne4 de4 17.Be4 f5 18.gf5 Nf5 19.Nf3 Be8 20.Rb3 Bg6? (better is 20...Rd8+–) 21.Ne5 Qe8 (21...Be8 22.Bb7 Rd8+–) 22.Bb7 Bf7 23.Bc6 Qd8 24.Rd3 Qe7 (24...Qc8+–) 25.Ba8 Ra8 (25...Nd6 26.Bc6 Kg8 27.Bd7+–) 26.Rd7 Qf6 27.Rf7 Qh6 28.Qg2 Rg8 29.Rf5! ef5 (29...ef5 30.Nf7 Mate attack) 30.Nf7 1–0. b4_player – kalter, casual, 2013.

3.c3 e5 4.g3 e4 5.d3 Nf6 6.b5 Nb8 7.e3 Bd7 8.d4 c6 9.a4 c5 10.a5 c4–+ 11.Bh3 Bh3 12.Nh3 a6 13.Qa4 Qd7 14.Na3?? Bd6 15.f5 0–0 16.Rf1 Ng4 17.Ra2 f6 18.Ng1 Re8 19.Rg2 Bc7 20.h3 Nh6 21.g4 b6 22.ab6–/+ Bb6 23.g5 fg5 24.Rg5 Rf8 0–1. shepherd – dgall, net–chess.com, 2002.

2.f4 g6

3.Nc3 Bg7 4.Nf3 Qd6 5.Bb2 h6?? (better is 5...Nf6=) 6.Nb5+/– Bb2? (better is 6...Qb6 7.Bg7 Rh7 8.Nc7 Qc7+/–) 7.Nd6+– cd6 8.Rb1 Bf6 9.e3 Rh7 10.c4 dc4 11.Bc4 Bf5 12.Rc1 Bg4 (12...e6 13.Qa4 Kd8 14.d4+–) 13.Bd5 Bc8 (13...a5 14.Bb7 Ra7 15.Qa4 Kf8+–) 14.Rc8 1–0. b4_player – verry, casual, 2013.

3.Nf3 Qd6 4.Bb2 Nf6 5.Nc3 Qb4 (better is 5...a6=) 6.Nd5!+/– Qa5 (6...Nd5 7.Bh8 Pinning (7.Bh8 Deflection; 7.Bh8 Clearance)) 7.Nf6+– (worse is 7.Bf6 ef6 8.Nf6 Ke7+=) 7...ef6 8.Bf6 Rg8 9.Bc3 Qd5 10.Rb1 Qa2 11.e4 Qe6? (better is 11...Nc6+–) 12.Ng5 Qe7 13.Bc4 (13.Bc4 Rg7 14.Bg7 Bg7 15.Bf7 Kd8 16.Bc4+–) 1–0. pierred (2755) – wstanevans (2330), net–chess.com, 2014. (=1.f4 d5 2.b4 g6)

3.Nf3 Bg7 4.c3 Nf6 5.e3 0–0 6.Be2 Qd6 7.0–0 Bf5 8.Na3 Nc6 9.Nb5 Qd7 10.Nfd4 Nd4 11.Nd4 Bg4 12.d3 h5 13.h3 Bh3 (better is 13...Be2 14.Qe2 a5=) 14.gh3+/– Qh3 15.Rf2 Ng4 16.Bg4 hg4 (16...Qg4!? 17.Qg4 hg4+/–) 17.Rh2+– Qg3 18.Rg2 Qh3 19.Qg4 Qh8? (19...Qg4 20.Rg4 e6+–) 20.f5 Bh6 (20...Bd4 21.ed4 Qg7+–) 21.fg6 f6 (21...Bg7 22.Nf5 fg6 23.Ne7 Kf7 24.Ng6 Qh7 25.Ne5 Kf6+–) 22.Qe6 Kg7 23.Nf5 1–0. marekt – altermann, internet, 2013.

3.Nf3 Bg7 4.Nc3 d4 5.Na4 d3 (better is 5...Qd6!?–/+) 6.Bb2= dc2 7.Qc2 Bb2 8.Qb2 Nf6 9.Rc1 0–0 10.g3 Nc6 11.Bg2 Be6 12.Ng5 Bd5 13.e4 h6 14.ed5 hg5?? (better is 14...Nd5 15.Ne4 Ncb4+–) 15.dc6+– gf4 16.cb7 Rb8 17.Qe5 (worse is 17.gf4 Nd5 18.Qd4 e6+–) 17...fg3 18.hg3 Qd6 19.Qd6 cd6 20.Rc7 Rfe8 (20...e6 21.Nc3 Ne8 22.Rd7+–) 21.Bc6 Red8 22.Re7 d5 (22...Rd7 23.Rd7 Nd7 24.Bd7 Rb7 25.Bc6 Rb4 26.Nc3+–) 23.0–0 Rd6 (23...Kf8 24.Rc7 Kg7+–) 24.Rf6! Rf6 25.Re8 Re8 26.Be8 1–0. b4_player – rijones158, internet, 2013.

2.g3 Nc6

3.b5 Nd4 4.e3 Nf5 5.Nf3 Nf6 6.Bb2 e6 7.Bd3 Nd6 8.Ne5 Nde4 9.0–0 Bd6 10.Be2 0–0 11.d4 Ne8 12.f3 f6 (12...Ng5 13.h4 f6 14.hg5 fe5 15.de5=) 13.fe4+= fe5 14.de5 Bc5 (14...Rf1 15.Qf1 Bb4 16.Qf3+=) 15.Bd4 (15.Rf8 Kf8 16.Bd4 Bb4+/–) 15...Rf1+= 16.Bf1 Bd4 17.ed4+/– Bd7 18.c4 de4 19.Nc3 e3 20.Qf3 Qg5? 21.Qb7 e2 22.Ne2 Qe3 23.Kg2 Rc8 24.a4 g5 25.Rc1 Ng7 26.Rc3 Qd2 27.c5 Nf5 28.c6 Ne3 29.Re3! Qe3 30.cd7 1–0. Trkn – guest5497, ICC, 2004.

3.d4 Nb4 4.c3 Nc6 5.Nf3 Bg4 6.h3 Bf3 7.ef3 e5 8.a3 ed4 9.Bf4 Qf6–+ 10.Bc7 dc3 11.Qe2 Nge7 12.Qc2 Nd4 (12...Nd4 13.Qc3 Rc8–+; < 12...Qf3 13.Rg1 Nd4 14.Qd3 Qd3 15.Bd3–+) 0–1. makio – iceydragon, net–chess.com, 2004.

2.g3 e6

3.a3 Be7 4.Nf3 Bf6 5.d4 b6 6.Bg2 c5 7.0–0 cd4 8.Nd4 Bb7 9.b5 a6 10.Bb2 ab5 11.Nc3 Bd4 12.Qd4 +=. miehnekort – handa92, Yahoo, 2005.

3.Bg2 Bb4 4.c4?! Nf6 5.cd5 Nd5 6.Bb2 0–0 7.Nf3 Nd7 8.0–0 N7f6 9.Qc2 h6 10.Na3 Bd7 11.Rac1 Rc8 12.Ne5 c6 13.e4 Nc7 14.Nac4 Qe7 15.Nd3! Bd6?! 16.e5 Be5 17.Nde5 Nfd5 18.Ba3 c5 19.Nd7 Qd7 20.Bc5 Rfd8 21.Ba7 b5 22.Nb6 Nb6 23.Bb6 Nd5 24.Bc5 Rc6 25.d4 Rdc8 26.Qb3 b4? 27.Bd5 ed5 28.Qb4 Qg4 29.Qa4 f5 30.Qd1 Qg5 31.Qf3 1–0. Farmer – Ault, Eden Prarie Winter Carnival.

2.g3 Bf5

3.Nf3 c6 4.Bb2 Qb6 5.a3 e6 (5...Nd7 6.Bg2=) 6.Nh4 Be4 7.f3 Bg6 8.Ng6 hg6 9.e3 Bd6 10.f4 f5 (better is 10...Nf6=) 11.Bg7+/– Rh7 12.Bd4 (12.Bb2 Nd7+/–) 12...Qc7 13.c4 dc4 (better is 13...e5!? 14.Bb2 Qe7+=) 14.Bc4+– Qe7 15.Qb3 Kd7 (15...Nf6 16.Be6 Na6 17.0–0+–) 16.h4 (16.Nc3 Nf6+–) 16...a5 (better is 16...Nf6 17.b5 cb5 18.Qb5 Kd8 19.Qa5 Ke8+–) 17.ba5 Ra5 (17...Ke8 18.Be6 Nf6 19.Bc8+–) 18.Qb6 Ra4 19.Qb7 Ke8 20.Qb3 Ra7 (20...Ra5 21.Be6 Nf6 22.Bg8+–) 21.Ba7 Na6 (21...Qa7 22.Be6 Nf6+–) 22.Ba6 Qa7 23.Qe6 Qe7 (23...Ne7+–) 24.Qg8 Qf8 25.Qh7 Qf7 26.Qf7 Kf7 27.h5 gh5 28.Rh5 Kf6 29.Rh6 Ke7 30.Bd3 (better is 30.Bc8 Kd8 31.Bf5 Ke7+–) 30...Bc7 31.Rh7 Kd6 32.Bf5 Kc5 1–0. Trkn – guest7850, ICC, 2005.

3.Nf3 c6 4.Bb2 Nf6 5.Bg2 e6 6.a3 Be7 7.0–0 0–0 8.d3 a5 9.Qd2 ab4 10.ab4 Ra1 11.Ba1 Qb6 12.Bd4 Qb4 13.c3 Qa5 14.Nh4 Bg6 15.Ng6 hg6 16.Qb2 c5 17.Be3 b5 18.Nd2 Nbd7 19.Ra1 Qb6 20.h3 Rb8 21.Bg5 b4 22.c4 Rb7 23.cd5 ed5 24.e4 de4 25.de4 Ra7 26.e5 Ra1 27.Qa1 Nd5 28.Nc4 Qb5? 29.Qa8+– Qb8 30.Qd5 Bg5 31.Qd7 b3 32.Bd5 b2 33.Qf7 Kh7 34.Nb2! Qb2 35.Qg8 (35...Kh6 36.Qh8) 1–0. pierre – starior78, Yahoo, 2005.

3.Nf3 e6 4.Bb2 (--> 1.b4 d5 2.Bb2 Bf5 3.Nf3 e6 4.g3).

3.Bh3 Be4 4.f3 Bg6 5.Na3 e5–/+ 6.Rb1 Bb4?? 7.Rb4+– Qd6? 8.c3 a5? 9.Rb7 Ra6 10.Rb8 Ke7 11.Qa4 Rb6 12.d3 Rb8+– 13.Qa5 h5 14.Nb5 Qc6 15.Na7 Rb1 16.Nc6 Kf8 17.Kd2 Nf6+– 18.Kc2 Bd3 19.ed3 Rh6 20.Kb1 Rg6 21.Qc7 Ne8 22.Qe7 Kg8 23.Qe8 Kh7 24.Ne5 Rb6 25.Kc2 Rh6 26.Qf7 Rg6 27.Ng6 d4 28.Bf4 dc3 29.Nf8 Kh8 30.Be5 h4 31.Bg7 (31.Qg7) 1–0. cbooth – pagetool, net–chess.com, 2001.

2.g3 Nf6

3.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.g3).

3.Bb2 e6 4.a3 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 d5 4.g3).

3.Nf3 e5 4.Ne5 Bb4 +=.

3.Bg2 Qd6 4.c3+= e5 5.Nf3 a6 6.a4 e4 7.Nd4 Nc6 8.Nc6 bc6 (8...Qc6 9.0–0+=) 9.0–0 Be7 (9...c5 10.bc5 Qc5 11.d3=) 10.d4 0–0 11.Bf4 Qd8 12.Nd2 Nh5 13.Nb3 (13.Be3!?=) 13...Nf4+= 14.gf4 Qd6 15.e3 g5 (better is 15...Qg6!? 16.Kh1 Re8+=) 16.fg5+= Bg5 17.Qh5 h6 (17...Qg6 18.Qe2=) 18.h4+= Be7 19.f4 (19.f3!? Qg3 20.Qh6 Bh4 21.fe4+/– (21.Qc6? Bg5 22.f4 Qe3 23.Rf2 Bh4–+)) 19...Qg6 20.Qg6 fg6 21.h5 gh5 22.Kh2 Rf6 23.Rg1 Rg6?? (23...Kf7 24.Bh3=) 24.Bh3?? (better is 24.Be4 Rg7 25.Rg7 Kg7 26.Rg1 Kf8 27.Bd3+–) 24...Bg4= 25.Ra2 Kf7 26.Na5 Rag8 27.Rag2 (27.Bf1 Bc8 28.Rg6 Rg6=) 27...Bh4 28.f5? (better is 28.c4!?=) 28...Rf6 29.Bg4 (29.c4!?–/+) 29...hg4–+ 30.Rg4 Rg4 31.Rg4 Bf2 32.Rg6 Be3 (32...Rg6 33.fg6 Kg6 34.Nc6 Be3 35.b5 ab5 36.a5 Bf4 37.Kg2+/–; 32...Rf5?! 33.Rh6 Be3 34.Rc6 Bf4 35.Kg2–/+) 33.Nc6 Rf5 34.Rg2 Rh5 35.Kg3 Rg5 36.Kh3 Rg2 37.Kg2 Bd2 (37...Ke6 38.b5 ab5 39.a5–+) 38.Nb8? (38.b5!? a5 39.Na5=) 38...Bc3 (better is 38...h5–+) 39.Na6= c6 40.b5? (better is 40.a5 Bd4 41.Nc5=) 40...cb5–+ 41.ab5 Bd4 (41...Ke7 42.Nb8–+) 42.Nc7 Ke7 (42...Kf6!? 43.Nd5 Ke5 44.Ne7–+) 43.Nd5–/+ Kd6 44.Nf4 Ba1 (44...Be5 45.Ne2 Kc5 46.Kf2–/+) 45.Ne2 Kc5 46.Ng3 Kb5 47.Ne4 ½–½. Sekhar,Ganesan – Boron,Anthony, Manitoba reserves, 2000.

3.Bg2 e5 4.a3 +=.

2.h3 a6

3.a3 Nf6 4.Nf3 e6 5.Bb2 A) 5...Bd6 6.e3 (6.Nc3 e5 7.e3 0–0 8.Be2 Nc6 9.0–0 Bd7 10.d3+=) 6...0–0 7.Be2 Nbd7 8.0–0 e5 9.d3 a5 10.b5=; B) 5...Nbd7 6.e3 (6.Nc3 Bd6 7.e3 0–0 8.Be2 e5 9.0–0 Re8 10.b5+=) 6...Bd6 7.c4 dc4 8.Bc4 a5 9.b5 e5 10.Qc2=; C) 5...Nc6 6.e3 (6.g4 Bd6 7.g5 Nh5 8.Rg1 e5 9.e3 h6 10.c4=; 6.d3 d4 7.c3 dc3 8.Nc3 e5 9.e3 Be6 10.Rc1=) 6...Bd6 7.Be2 0–0 8.d4 Ne4 9.Nbd2 Nd2 10.Qd2=; D) 5...c5 6.bc5 Bc5 7.e3 0–0 8.Be2 Nc6 9.0–0 Bd6 10.d3+=.

3.a3 Nf6 4.Nf3 e6 5.d4 A) 5...Bd7 6.Nc3 (6.Nbd2 a5 7.ba5 Ra5 8.e3 Bd6 9.Bd3 Nc6 10.e4=; 6.Bf4 a5 7.ba5 c5 8.a6 Na6 9.e3 Qa5 10.Qd2+=; 6.Bg5 a5 7.ba5 c5 8.Qd2 Nc6 9.e3 Ra5 10.c3+=; 6.e3 Bb5 7.Bd3 Bd6 8.0–0 0–0 9.Nc3 Bd3 10.cd3+=) 6...Be7 7.e3 0–0 8.Bd3 a5 9.b5 c6 10.0–0=; B) 5...Bd6 6.Nbd2 (6.e3 Nc6 7.c4 dc4 8.Bc4 0–0 9.0–0 e5 10.d5=; 6.Bg5 h6 7.Bf6 Qf6 8.Nc3 Qg6 9.e3 a5 10.b5=) 6...a5 7.b5 c5 8.dc5 Bc5 9.e3 Bd6 10.c4=; C) 5...a5 6.b5 c5 7.Bg5 h6 8.Bf4 a4 9.e3 c4 10.Nc3+=.

3.a3 Nf6 4.Nf3 e6 5.e3 Bd6 (5...c5 6.bc5 Bc5 7.d4 Bd6 8.Bd3 0–0 9.0–0 b5 10.a4=; 5...Nbd7 6.d4 Bd6 7.c4 dc4 8.Bc4 0–0 9.0–0 b5 10.Bd3=; 5...Nc6 6.d4 Bd6 7.c4 0–0 8.c5 Be7 9.Bd3 Ne4 10.0–0=) 6.Nc3 (6.d4 a5 7.b5 0–0 8.c4 b6 9.Qc2 Re8 10.Be2=; 6.Bb2 0–0 7.Be2 a5 8.b5 Nbd7 9.0–0 Qe7 10.d4=; 6.Be2 0–0 7.0–0 e5 8.Bb2 Nbd7 9.d3 Qe7 10.c4+=; 6.c4 dc4 7.Bc4 0–0 8.d4 Nbd7 9.Nc3 Nb6 10.Bd3=) 6...e5 7.Bb2 e4 (7...0–0 8.Be2 Nc6 9.0–0 e4 10.Ne1+=) 8.Nd4 c5 (8...0–0 9.d3 Be5 10.de4=) 9.bc5 Bc5 10.Be2 (10.Nb3+=) 10...0–0 11.0–0 b5 12.d3 Nfd7?? (better is 12...Qc7+=) 13.de4 Ne5 (13...de4 14.Ne4 Bb7 15.Nc5 Nc5 16.Nf5+–) 14.ed5 Bb7 15.Nf5 Qf6 (15...Nbd7+–) 16.Ne4 Qf5 17.Nc5 Ra7 (17...Bc8 18.g4 Qg5 19.f4+–) 18.Qd4 (better is 18.e4 Qf6 19.Nd3 Nbd7 20.Ne5 Ne5+–) 18...Rd8 (18...f6 19.Ne6 Nec6+–) 19.e4 Qf4 (19...Qf6 20.Qe5 Qe5 21.Be5+–) 20.Nd3 Qg5 (20...Qd2 21.Qa7 Nc4 22.Rfe1 Nb2 23.Nb2+–) 21.Qa7 Bd5 (21...Nd3 22.Bd3 Qe7 23.f4+–) 22.Ne5 Be4 (22...Nc6 23.Nc6 Bc6 24.Bf3+–) 23.Qf7 Kh8 Threatening mate: Qxg2 24.Bf3 Bf3 25.Qf3 Nd7 26.Nf7 1–0. pierre – narendran, internet, 2008.

2.h4 Nf6

3.Bb2 e5 4.Nc3? Bb4 5.Na4 Bd7 6.Be5? Ba4 7.Rb1 Nc6 8.Rb4 Nb4 9.Qb1 Nc2 10.Qc2 Bc2 11.Bf6 Qf6 12.Nf3 Qa1# 0–1. cheshirechess – marekt, internet, 2008.

3.Nf3 Bf5 4.a3 h6 5.e3 e6 6.Bb2 Nbd7 7.Be2 c5 8.Bc3 Rc8 9.Bb5 a6 10.Bd7 Nd7 11.Ra2 Nf6 12.bc5 Bc5 13.Bb4 0–0 14.0–0 Bb4 15.ab4 Qb6 16.c3 Bd3 17.Re1 Nd7 18.Ra5 Qd6 19.Na3 e5 20.Qb3 Nf6 21.b5 Rfd8 22.Ra1 Rc5 23.Qb4 Rdc8 24.ba6+/– ba6? 25.Ne5!+– Bb5 26.d4 1–0. guest2009 – Wolverine3 (1900), ICC, 2003.

2.a3 a5

3.ba5 Ra5 4.e3 Nf6 5.c4 (5.Bb2!?=) 5...d4 White's piece can't move: b1 6.Bb2 (6.d3 e5–/+) 6...Nc6 7.Nf3 e5 8.ed4 (8.Qc2 Be7–/+) 8...Nd4 (8...e4 9.Ne5 Nd4 10.f4–/+) 9.d3 Consolidates e4 (9.Bc3 Ra6–/+) 9...Bg4 (9...Bc5!? 10.Nbd2 Qd6–/+) 10.Nbd2 Qa8 Black has a very active position (10...Be7 11.Be2 Qd7 12.Nd4 ed4 13.0–0=) 11.Nb3 (better is 11.Be2 is the best option White has 11...Bf3 12.Bf3 Nf3 13.Nf3 Ba3 14.Be5=) 11...Ba3–/+ 12.Ba3 (12.Bc3!? Bb2! Black gets the advantage 13.Bb2 Ra1 14.Ba1 Bf3 15.gf3 Nb3 16.Bc3–/+) 12...Ra3 13.Ra3 Qa3 14.Nbd4 ed4 15.Be2 0–0 Black castles and improves king safety (15...Qc3!? 16.Qd2 0–0 17.h3–/+) 16.0–0 Qd6 White has a cramped position 17.Nh4 (17.h3 Bd7–/+) 17...Qf4 (better is 17...Bd7!?–/+) 18.Bg4= Qg4 19.Qg4 Ng4 20.Re1 Nf6 21.Nf5 (21.g3 Rd8=) 21...g6+= 22.Ne7 Kg7 23.Nd5 Nd5 24.cd5 Rd8 Black threatens to win material: Rd8xd5 25.Re7 White threatens to win material: Re7xc7 25...Rd5 26.Rc7 Rb5 Black has a mate threat 27.Kf1 Kf6 28.g3 Ke6 29.h4 h5 30.Ke2 Rb2 31.Kf3 b5 32.Rb7 f5 33.Rb6 Ke5 34.Rg6 Rd2 Black threatens to win material: Rd2xd3 35.Rg8 Rd3 36.Ke2 White threatens to win material: Ke2xd3 36...Rb3 37.Re8 Kd5 38.Rd8 Kc4 39.Rc8 Kb4 40.f3 (better is 40.Rh8!?= is worth consideration) 40...Re3–/+ 41.Kf2 Rc3 42.Rd8 (42.Rf8 Rc5 43.Rh8 Rc2 44.Ke1 Kc3–/+) 42...Rc2 43.Ke1 Kc3 44.Rd5? (better is 44.Rh8–/+) 44...b4–+ 45.Rf5?? White has lost his nerve... understandable when you consider his position (45.Rc5 Kd3 46.Rb5–+) 45...b3 46.Kd1 (46.Rc5 hardly improves anything 46...Kd3 47.Rb5 b2–+) 46...Rd2 (46...b2 47.Rb5 Rc1 48.Ke2 b1Q 49.Rc5 Kb4 50.Rc1 Qc1 51.Kf2 Qe3 52.Kf1 Qf3 53.Kg1 d3 54.g4 d2 55.gh5 d1Q 56.Kh2 Qdh1) 47.Ke1 Ra2 48.Rb5 (48.Rc5 desperation 48...Kd3 49.Rb5–+) 48...b2 49.g4 Ra1 50.Ke2 b1Q (50...b1Q 51.Rb1 Rb1 52.gh5 d3 53.Ke3 d2 54.Kf4 d1Q 55.h6 Qd4 56.Kf5 Rb6 57.h7 Rf6 58.Kg5 Qf4 59.Kh5 Qf5) 0–1. Pilter,H – Wadsack,Winfried (2110), Ybbs op, 2001. (=1.a3 d5 2.b4 a5)

3.b5 b6 4.a4 e5 5.Bb2 Bd6 6.Nf3 Qe7 7.e3 (7.c4 dc4 8.e3 Qe6–/+) 7...Bg4 (7...Nf6 8.Be2+=) 8.Be2 (8.c4 dc4 9.h3 Bh5=) 8...Nf6+= 9.d4 (9.h3 Bf5+=) 9...Bf3 (9...e4 10.Ne5 Be2 11.Qe2=) 10.Bf3= e4 11.Be2 Nbd7 (11...0–0 12.c4=) 12.0–0 Nf8 (12...Rd8 13.c4=) 13.c4+= dc4 14.Bc4 Ng6 15.Nc3 0–0 16.Qc2 Bh2?? (better is 16...Rac8+=) 17.Kh2+– Ng4 18.Kg1 Qh4 19.Rfe1 Qh2 20.Kf1 Qh1 (20...Rae8 21.Ba3 Nh4 22.Bf8 Qg2 23.Ke2 Qf2 24.Kd1 Ne3 25.Re3 Qe3 26.Bg7 Qg1 27.Ke2 Qa1 28.Bf6–/+) 21.Ke2 Qg2 22.Kd1 (22.Ne4 Rae8 23.Bd3 Ne3 24.Ke3 f5+–) 22...Qf2 (better is 22...Nf2 23.Kc1 Qg3+/–) 23.Ne4?? (better is 23.Qf2 Nf2 24.Ke2+–) 23...Ne3–/+ 24.Re3 Qe3 25.Bd5 (25.Ra3 Qg1 26.Ke2 Rae8–+) 25...Rad8 26.Bc6?? (26.Qb3 Qb3 27.Bb3 Rfe8–/+) 26...Nf4 (26...Rd4 27.Nd2 Qg1 28.Ke2 Nf4 29.Kf3 Qg2 30.Ke3 Qe2 31.Kd4 Rd8 32.Bd7 Rd7 33.Kc3 Rd3 34.Qd3 Qd3) 27.Qf2 (27.Ra3 Qg1 28.Kd2 Qg2 29.Kc3 Qc2 30.Kc2 f5–+) 27...Qd3 (27...Qd3 28.Nd2 Nh3+=). rommeltdf (1925) – stormer (1865), net–chess.com, 2002. (=1.a3 d5 2.b4 a5)

3.b5 Nf6 4.a4 (4.Nf3!?=) 4...e5+= 5.e3 g6 6.Nf3 Bg4 7.Be2 Nbd7 8.0–0 Bg7 9.h3 Be6 10.Re1 0–0 11.d3 Ne8 12.Nc3 c5 13.d4 (13.bc6 bc6 14.Rb1 e4=) 13...cd4 (13...e4 14.Nh2–/+) 14.ed4+= e4 15.Ne5? (better is 15.Ng5!?+=) 15...Ne5–+ 16.de5 Be5 17.Bd2 Qf6 18.Qc1?? (better is 18.Ra3–+) 18...Bc3 19.Bc3 Qc3 20.Kh2 Rc8 21.g3 Qc2 22.Qf4 Ng7 23.h4 f5 24.Kh3 d4 25.Rac1 Qa4 26.Ra1 Qb4 27.Reb1 Qe7 28.Ra5 Qc7 29.Qg5 Qa5 30.b6 f4 31.Kh2 Qg5 32.hg5 Rc2 33.Bf1 Rf2 34.Kg1 fg3 35.Rc1 Rf1! 36.Rf1 Rf1 37.Kf1 e3 0–1. pieeater – the horror man, ChessWorld.net, 2014.

3.Nf3 ab4–/+ 4.Bb2 Nc6 (4...ba3 5.Ra3 Na6 6.e3–/+) 5.e3=+ Nf6 6.Bb5 e6 7.Ne5 Bd7 8.Nd7 Qd7 9.ab4 Ra1 10.Ba1 Bb4 11.Bf6 gf6 12.Qg4 Bf8 13.Nc3 Ke7 (13...f5 14.Qa4=) 14.Qa4 (14.0–0 Ne5 15.Qg3 Qd6=) 14...Bg7 (14...Rg8 15.0–0=) 15.Qg4 (15.0–0 Qd6=) 15...Bf8 (15...Rg8 16.Qh4 h6 17.0–0=+) 16.Qa4= Bg7 (16...Qd6 17.0–0=) 17.Qg4=+ Bf8 (17...Rg8 18.Qh4 h6 19.0–0=+) 18.Qa4= ½–½. MChess Pro 6 – Borsavolgyi,Tamas (2260), Debrecen, 1997.

3.Bb2 ab4

4.ab4 Ra1 5.Ba1 b6 6.Bd4 Nc6 7.c3 e5 8.Be3 Nf6 (better is 8...d4!? 9.cd4 ed4–/+ (9...Nd4?! 10.Nf3+=; 9...Bb4?! 10.de5 Nge7 11.Nf3=)) 9.Bg5 Be7 10.e3 0–0 11.Bb5 Bd7 12.Qa4 Qa8 13.Nf3 Qa4 14.Ba4 Na7?? (better is 14...e4 15.Nd4 Nd4 16.Bd7 Nd7 17.Be7 Nc2 18.Kd1 Re8 19.Kc2 Re7=) 15.Bf6+– Bf6 16.Bd7 c6 17.0–0 Rd8 18.Bf5 c5 19.bc5 bc5 20.d4 e4 21.Nfd2 c4 22.f3 ef3 23.Nf3 Rb8 24.e4 de4 (24...g6 25.Bd7 Rd8 26.e5+–) 25.Ne5 (better is 25.Be4 Nb5+–) 25...Be5 26.de5 1–0. Mr.Oldenslo – Darkseid, ChessWorld.net, 2012.

4.ab4 Ra1 5.Ba1 Qd6 6.c3 e5 7.Qa4 Qd7 8.Qd7 Nd7 9.e3 c6 10.Be2 Ngf6 11.Na3 Bd6 12.Nf3 0–0 13.0–0 Re8 14.Bb2 b5 15.h3 h5 16.Re1 Nf8 17.d3 Bf5 18.Nc2 Ra8 19.Ra1 Ra1 20.Na1 Ne6 21.Nb3 g5 22.Nfd2 g4 23.hg4 hg4 24.c4 d4 25.ed4 ed4 26.Nd4 Nd4 27.Bd4 Bb4 28.Bf6 Bd2 29.d4 b4 30.d5? (better is 30.Bd1!?+=) 30...cd5 31.cd5 Bc3 32.Bc3 bc3 33.Bd1 c2 34.Bc2 Bc2 35.Kf1 (35.Kh2 Kg7 36.Kg3 Kf6 37.Kg4 Bb3–+) 35...Kf8 36.Ke2 Ke7 37.Ke3 Kd6 38.f3 gf3 39.Kf3 Kd5 40.Kf4 Bd1 41.Kf5 Bh5 42.Kf4 Kd4 43.g3 Kd5 44.Kf5 Bg6 45.Kf4 Ke6 46.g4 Kd5 47.g5 Ke6 48.Kg4 Ke5 49.Kh4 Kf4 50.Kh3 Kg5 51.Kg3 (51.Kg2 Be4 52.Kf2 f5–+) 51...Be4 (better is 51...f5 52.Kf3–+) 52.Kf2 Kg4 53.Kf1 Kg3 54.Kg1 Bd3 55.Kh1 f5 (55...f5 56.Kg1 f4 57.Kh1 f3 58.Kg1 f2 59.Kh1 f1Q#) 0–1. Stinson,David – Vaughn,G, Detroit–ch MI clsC, 1994. (=1.a3 d5 2.b4 a5 3.Bb2 ab4)

4.ab4 Ra1 5.Ba1 Bf5 6.g3 e6 7.Bg2 Bb4?? (7...Qd6 8.d3=+) 8.e3 (Better is 8.Bg7 Qg5 9.Bh8+–) 8...Nf6–/+ 9.g4 (Better is 9.Nf3!?–/+) 9...Bg4 10.f3 Bh5 11.Nh3 0–0 12.Nf4 Nc6 13.Bf6=+ Qf6 14.Nh5 Qh4 15.Ng3+= f5 16.Kf2 e5 17.Ke2 d4 18.e4 fe4 19.Ne4 Ne7 20.Qe1 Nd5?? 21.Qh4+– 1–0. burka – HTRJack, Live Game Caissa's Web, 2004.

4.ab4 Ra1 5.Ba1 Nf6 =+.

2.a3 c6

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

3.c4 dc4–/+ 4.e4 a5 5.Bc4 ab4 6.d4 e6 7.Nf3 b5 8.Bb3 (8.Bd3 ba3 9.Na3 Bb4 10.Kf1 Nf6–/+) 8...ba3 9.0–0 (9.Na3 Nf6 10.Qd3 Bb4 11.Nd2 e5–+) 9...b4–+ 10.Nbd2 Nf6 11.Nc4 (better is 11.Qc2–+) 11...Ne4 12.Re1 Nc3 (12...Nf6 13.Bf4–+) 13.Qc2 Nb5 14.Nce5 (14.Bg5 Qc7–+) 14...Nd4 15.Nd4 Qd4 16.Bg5 (16.Bb2 A) 16...ab2?! 17.Ra8 Bd6 18.Nc6 Nc6 19.Qc6 Ke7 20.Qc2+= (20.Rc8?? Rc8 21.Qc8 Qe4–+); B) 16...Qb2?! 17.Qb2 ab2 18.Ra8–+; C) 16...Qc5 17.Qd1 Qd6–+) 16...f6 (16...f6 17.Nc6 Qc3 18.Be6 A) worse is 18...Qc2 19.Bf5 Be6 20.Re6 Kd7 A1) 21.Bc2?? Ke6 (worse is 21...fg5 22.Nd4–+; worse is 21...Nc6 22.Rc6 Kc6 23.Be4 Kb5 24.Ba8 fg5 25.Bd5–+) 22.Re1 Kd7 23.Nb8 Rb8 24.Ba4 Kc8–+; A2) 21.Nb8 Rb8 A21) 22.Bc2 Ke6 (22...fg5?! 23.Bf5 Be7 24.Rae1–+) 23.Bf4 Rc8 24.Re1 Kd5 25.Rd1 Kc4–+; A22) 22.Rf6 Qf5 23.Rd1 Bd6 24.Rf5–+; B) 18...fg5 19.Bc8 Be7 20.Re7 Kf8 21.Re8 Kf7 22.Qf5 Qf6 23.Rh8 Qf5 24.Bf5+–; C) 18...Qc6? 19.Bd5 Kd7 20.Bc6 Nc6 21.Bf4+–; D) 18...Nc6–+) 0–1. Sandeman,Michael – Zillmer,Jim, corr or01–013, 2002.

3.d4 Nf6 4.Bb2 Bf5 5.Nd2 e6 6.c3 Be7 7.Ngf3 Nbd7 8.g3 h6 9.Bg2 0–0 10.0–0 Ne4 11.Ne4 Be4 12.e3 Nf6 13.Ne5 Bg2 14.Kg2 Bd6 15.f4 Ne4 16.Rf3 Be5 17.de5 f6 18.Qe1 fe5 19.Rc1 ef4 20.gf4 Qe7 21.Kf1 Rf5 22.h4 Rh5 23.a4 Rh4 24.Ke2 Rh2 25.Kd1 Rb2 26.Rc2 Rb1 27.Rc1 Rc1 28.Kc1 Qf6 29.Kb2 Rf8 30.b5 cb5 31.ab5 Rc8 32.Qe2 Qc3 33.Ka2 Rc4 34.Qb2 Ra4 35.Kb1 Qe1 36.Qc1 Rb4 37.Kc2 Rc4 38.Kb2 Qc1 39.Kb3 Qc3 40.Ka2 Ra4 0–1. nimzou (1720) – dsteel (2120), net–chess.com, 2014.

3.Nf3 Nf6

4.Bb2 e6 =.

4.e3 Bg4 5.Bb2 =.

4.e3 e6

5.c4 Bd6 6.d4 0–0 7.Bb2 Nbd7 (7...dc4 8.Bc4 b5 9.Bd3=) 8.Nbd2 Ne4 9.Ne4 de4 10.Ne5 a5 11.c5 Bc7 12.Qc2 ab4 13.ab4 (worse is 13.Qe4 f5 14.Qd3 Ne5 15.de5 Qd3 16.Bd3 ba3+=) 13...Ra1 14.Ba1 f5 15.Be2 Nf6 16.0–0 Nd5 17.b5 cb5 18.Bb5 Be5 19.de5 Bd7 20.Bc4 Bc6 21.Bd5 Bd5 22.Bd4 Qh4 23.Ra1 g5 24.Qb1 f4 25.Qf1 Kh8 26.Ra4 Rg8 27.Rb4 Ra8 28.h3 (28.Qb5 Qh5+=) 28...g4 29.hg4 f3 30.g3 Qg4 31.Kh2 Rg8 32.Qh3 Qg5 33.c6 (33.Kg1!?=) 33...bc6–/+ 34.Rb1 h5 35.Kh1 Qg4 36.Qh2 Ra8 37.Kg1 Kg7 38.Bc5 Kg6 39.Be7 Ra2 40.Rc1 Ra7 (40...Kf7 41.Bd6–/+) 41.Bc5 (41.Bf6!?–/+) 41...Rh7–+ 42.Rb1 h4 43.Rb8 hg3 44.Rg8 Rg7 45.Rg7 Kg7 46.fg3 Kg6 47.Kf2 Qh5 48.Qh5 Kh5 49.Bb6 Bc4 50.Bc5 Ba6 51.Bb6 Bc8 52.Bc5 Bd7 53.Be7 Be8 54.Bd6 Bg6 55.Be7 Bf5 56.Bb4 Bg4 57.Bc5 Kg6 58.Kf1 Kf7 59.Ke1 Ke8 (59...Ke8 60.Kf2 Kd8–+) 0–1. Taulien,Hans_Juergen – Mehlhorn,Uwe, remoteschach.de, 2003.

5.c4 Bd6 6.d4 0–0 7.c5 Bc7 =.

5.d4 Bd6

6.c4 Nbd7 7.c5 Bc7 8.Be2 =.

6.c4 0–0

7.c5 Bc7 =.

7.Nbd2 Be7 8.Be2 =.

7.Nbd2 Nbd7

8.Bb2 Bc7 9.Bd3 =.

8.Bb2 Ne4 9.Ne4+= de4 10.Nd2 f5 11.Qb3 (11.c5 Bc7=) 11...Qe7 (11...Bc7+=) 12.0–0–0 (12.Be2!?+=) 12...Nf6 (12...b6 13.f3 ef3 14.gf3+=) 13.Be2 (13.c5 Bc7 14.Nc4 Ng4+=) 13...b6 (13...b5 14.cb5 cb5 15.Bb5+=) 14.f3 c5 15.dc5 (15.fe4 Ne4 (worse is 15...cb4 16.e5+/–) 16.Ne4 fe4 17.dc5 bc5+=) 15...bc5 16.fe4 Ne4 (worse is 16...cb4 17.e5 ba3 18.Bd4 Be5 19.Be5+/–) 17.Ne4 fe4 18.b5 (18.Qc3 Bc7+=) 18...Rf2 19.Rd2 (19.Qc2+=) 19...Bb7 (19...Rg2!? 20.Qc2 Rb8+=) 20.Qd1 (20.Rhd1 Rd8+= (20...Bh2? 21.Rd7 Qg5 22.Rb7 Re2 23.Rg7 Qg7 24.Bg7 Kg7 25.g3+–)) 20...Rd8= 21.Be5 Bc7 22.Rd8 Qd8 (22...Bd8!? 23.Rf1 Rf1 (23...Rg2?? 24.Bd6 Qe8 25.Rf8 Qf8 26.Bf8+–) 24.Bf1 Qf8=) 23.Qd8+= Bd8 24.Rd1 Bb6 (24...Bg5 25.Kd2 Rg2 26.Bd6+=) 25.Rd7+/– Rf7 26.Rf7 Kf7 27.Kd1 (27.h4 Bd8 28.Bd6 Be7+/–) 27...g6 28.Ke1 (28.h4 Ba5+/–) 28...Ke7 (28...Ke8 29.Kf2+/–) 29.Kf2 (29.h4 h5+/–) 29...Ba5 (29...Kd7 30.h4+/–) 30.Bd1 (30.g4 g5+/–) 30...h5 (30...Bd2 31.Ke2 Ba5 32.Ba4+/–) 31.h4 a6 (31...Bd8 32.g4 hg4 33.Bg4+/–) 32.a4 Bd2 (32...Kd7 33.g4 hg4 34.Bg4 ab5 35.ab5+/– (worse is 35.cb5 Bd5+=)) 33.g4 (33.Bc2 ab5 34.ab5 Kd7+/–) 33...hg4 34.Bg4 a5 35.Bh3 Kd7 36.Bf4 Ke7 (36...Bc3 37.Ke2+/–) 37.Bc7 (37.Bg5 Kd6+/–) 37...Kd7 38.Bb6 Kd6 39.Bg2 e5 40.Ke2 Bb4 41.Kf2 (41.Bh3 Bc3+–) 41...Bc3 (41...Bd2 42.Ba7 Bc3+/–) 42.Ba7+/– Bb2 43.Bb8 Ke7 44.Bc7 (44.Bh3 Bc3+/–) 44...Bc3 45.Bh3 Bb4 (45...Kf6 46.Bd6 Bb4 47.Bd7+/–) 46.Be5 Bd2 47.Ke2 Bb4 48.Bb2 Kd6 (better is 48...Ke8+–) 49.Bf6 Ba3 (49...Ba8 50.Bc8+–) 50.Kf2 Bb4 51.Kg3 (51.Kg3 Be1 52.Kf4+–) 1–0. Flear,G – Pelletier,Y, FRA chT, 2000.

8.Bb2 Ne4 9.Ne4+= de4 10.Nd2 f5 11.Qb3 Nf6 (11...Bc7 12.Rd1+=) 12.f4 (12.Be2 Qd7+=) 12...ef3= 13.gf3 a5 14.0–0–0 (better is 14.Bd3!?=) 14...ab4–/+ 15.ab4 b5 16.c5 Bb8 17.Bd3 (17.Re1 Kh8–/+) 17...Rf7 (17...Nd5 18.e4 Nf4 19.Kb1–/+) 18.Bc2 Kf8 (18...Ra4 19.Qd3 Ra6 20.e4–/+) 19.h3 (19.Rdg1 Ra4 20.Qd3 Ra6+=) 19...Nd5 20.e4 Nf4 21.Nf1 (21.Qe3 Ng6+=) 21...fe4 (21...Rfa7 22.Kb1–/+) 22.fe4+= e5 The isolani on h3 becomes a target (22...Kg8 23.Ne3+=) 23.d5= cd5 (23...Kg8 24.Rd2=) 24.ed5 Ne2 (24...Bb7 25.Be4 Rd7+/–) 25.Kb1+= Nd4 (25...Nf4 26.d6 (worse is 26.Bh7 g6+=) 26...Bb7 27.Rh2+/–) 26.Bd4+/– ed4 27.d6 (worse is 27.Bh7 Qf6 28.Bd3 Rfa7+=) 27...d3 (27...Qf6 28.Qb2+/– (28.Bh7 g6–/+)) 28.Rd3 Rf4 (28...Bb7 29.Rg1+/–) 29.Qc3 (29.Qd5 Ra7 30.Bb3 Raf7+–) 29...Qh4 (29...Bf5 30.Rg1 Ra7=) 30.Rf3 Bb7 31.Rf4 Qf4 32.Rg1 Ra1 (32...Qf7 33.Nd2 Qa2 34.Kc1 Qa1 35.Nb1 Qc3 36.Nc3 g6+–) 33.Qa1 Qb4 (33...Ke8 34.Qc3 Kd8 35.Rg7+–) 34.Kc1 (34.Kc1 Qe1 35.Bd1+–) 1–0. Malaniuk,V – Ortega,L, Formia, 1995.

8.Bb2 Qe7 9.Bd3 e5 10.c5 Bb8 11.de5 Ne5 12.Ne5 Be5 13.Qc2 Bb2 14.Qb2 Ne4 (14...b6 15.Qc3=) 15.Be4 de4 16.0–0 Bg4 17.Nc4 Qg5 (17...Rad8 18.Nd6+=) 18.Qe5 (18.Kh1 Rad8+=) 18...Qe5= 19.Ne5 Be2 20.Rfe1 Ba6 21.Rac1 (21.f3 Rfe8 22.Ng4 f5=) 21...Rad8 22.Nc4 Bc4 23.Rc4 f5 (23...Rfe8 24.g4=) 24.f3 ef3 (24...Rfe8 25.fe4 fe4 26.Rd4=) 25.gf3 Rd3 26.a4 Rfd8 27.Kf2 Ra3 28.a5 g6 29.Rf4 Rdd3 (29...Kg7 30.Re2=) 30.Re2 Kg7 (30...Rab3 31.h4=) 31.Re1 (31.h3 Rab3=) 31...Kf6 (31...Ra4 32.Rc4+=) 32.h4 Ra2 33.Re2 Ra1 34.Rc4 (34.Kg3 Rg1 35.Kf2 Rgd1+=) 34...Rb1 35.Rec2 (35.a6 ba6 36.Ra2 a5 37.Ra5 Rd2 38.Kg3 Rg1 39.Kh3 Rgg2–+) 35...Ke5 (35...Rdb3 36.Rd2 Rb4 37.Rb4 Rb4 38.a6–/+) 36.Ra2 (36.Re2 Kd5 37.Rf4 Ke6+=) 36...Rh1–/+ 37.a6?? (better is 37.Ke2 Rd7 38.Rac2+=) ½–½. Baer,W – Schulz,H, ETC, 2004.

8.Bb2 Be7 9.Bd3 =.

8.Be2 e5 =.

8.Be2 Re8 =.

2.a3 Nc6

3.Bb2 a5 4.b5 Na7 5.a4 (5.e3 Nf6=) 5...c6 (5...Nf6 6.e3=) 6.bc6 (6.e3=) 6...Qb6 (6...bc6 7.e3=) 7.Qc1 (better is 7.cb7!? Bb7 8.Ra2+=) 7...Nc6= 8.e3 e5 9.Bb5 d4 (9...Qc7 10.Ne2=) 10.ed4 (10.Nf3 de3 11.fe3 f6+=) 10...ed4 11.Nf3 Bd7 (11...Bc5 12.c3 d3 13.0–0=) 12.0–0 (12.Bc6 Qc6 13.0–0 d3 14.Re1 Be6+/–) 12...Nge7 (12...Bc5!?+=) 13.Re1+/– Rc8 (13...Rd8 14.d3+/–) 14.c3 (14.Re4 d3+/–) 14...dc3 (14...Nb4 15.Bd7 (15.Nd4 Bb5 16.ab5 Nd3–/+) 15...Kd7 16.Ne5 (16.Nd4? Nd3–+) 16...Ke8 17.Na3+/–) 15.Nc3 Be6 (15...Qc7 16.Nd5 Qd8 17.Bf6+/–) 16.Ne5 (better is 16.Ng5+–) 16...Bd7?? (better is 16...Kd8!?+=) 17.Nd7 (better is 17.Nc4!? Qc7 18.Ne4 Kd8+–) 17...Kd7 18.d3 (18.Ne4 f5 19.Nc5 Ke8+–) 18...Nf5 (18...f5!?+–) 19.d4 (19.Qg5 Nd6+–) 19...Nfd4 (19...Kd8 20.Nd5 Qa7 21.Qg5 Nfe7 22.Ne7 Be7 23.Qd5 Kc7 24.Re7 Kb8 25.Bc6 Rc6 26.Qf7+–) 20.Qd1 Qc5 (20...Rd8 21.Nd5 Qc5 22.Qd4 Qd4 23.Bd4 Kc8 24.Nb6 Kb8+–) 21.Bc6 (21.Ne4!? Qd5 22.Bd4 f5+–) 21...Kc6 (21...bc6 22.Ne4 Qd5 23.Bd4+– (23.Qd4?! Qd4 24.Bd4 Rg8+–)) 22.Ne4 Qc4 (22...Qd5 23.Bd4 b6+–) 23.Rc1 Nf3 (23...Qc1 24.Qc1 Kd7+–) 24.gf3 Kb6 25.Rc4 (25.Bd4 Ka6 26.Rc4 Rc4 27.Qe2 b5 28.ab5 Kb5 29.Rc1 Kc6 30.Qc4 Bc5 31.Qc5 Kd7 32.Qd6 Ke8 33.Rc8) 25...Rc4 26.Bd4 Ka6 27.Nc5! Bc5 (27...Rc5 28.Qe2) 28.Bc5 (28.Qd3 Ka7 29.Qc4 Rb8 30.Qc5 b6 31.Re7 Rb7 32.Qb6 Kb8 33.Qb7) 28...Rc5 29.Qd3 Ka7 30.Qd4 b6 (30...Rhc8+–) 31.Qd7 (31.Re7 Rc7 32.Rc7 Ka8 33.Qd5 Kb8 34.Qb7) 31...Ka6 (31...Kb8 32.Re7 Rg5 33.Kf1 Rg1 34.Kg1 b5 35.Qb7) 32.Rb1 (32.Re7 Rc1 33.Kg2 Rc7 34.Qc7 b5 35.Qd6) 32...Rg5 (32...Rhc8 33.Qd3 Kb7 34.Qh7+–) 33.Kf1 h5 (33...Rb8 34.Rc1 Rb7+–) 34.Qc6 Rb8 (34...Rb5 35.Rb5 Rb8 36.Rb6 Rb6 37.Qa8) 35.Qc7 (35.Rb6! Rb6 36.Qa8) 35...Rb7+– 36.Qc4 (36.Qd8 Rc5 37.Rb6 Ka7 38.Rb7 Kb7 39.Qd7 Kb6 40.Qf7 Kc6+–) 36...b5 (36...Ka7 37.Rb5 Rb5 38.Qb5+–) 37.ab5 (better is 37.Qc6 Ka7+–) 37...Rgb5 38.Qc6 R5b6 39.Qc4 (39.Rb6 Rb6 40.Qc4 Rb5 41.Qf7 a4+–) 39...Rb5 40.Rb5 Rb5 41.Qc6 (41.Qf7 a4+–) 41...Rb6 42.Qc4 (42.Qa8 Kb5+–) 42...Rb5 43.Qc6 (43.Qf7 a4+–) 43...Rb6 44.Qc4 (better is 44.Qa8 Kb5 45.Qd5 Ka6 46.Qf7+–) 44...Rb5= ½–½. Nautiluschess – stupido, ICS blitz, 2000.

3.Bb2 d4 4.Nf3+= e5 (4...Bg4 5.e3+=) 5.c3 (5.b5 Na5 6.Ne5 Be6+=) 5...Nf6 (5...Be6 6.Qa4 dc3 7.Nc3=) 6.cd4 (6.b5 e4+=) 6...ed4 (6...Nd4 7.Nd4 (worse is 7.Ne5 Be6 8.Qa4 c6–/+) 7...ed4 8.e3 de3 9.de3 Qd1 10.Kd1=) 7.e3 (7.b5 Na5 8.Nd4 Nc4+=) 7...d3 (7...de3 8.de3 Qd1 9.Kd1=) 8.Qb3 (8.b5 Nb8+/–) 8...Bf5 9.Ng5 (9.b5 Na5 10.Qa4 b6+=) 9...Qd7 (9...Bg6 10.f4 Qd7 11.b5=) 10.Nc3 (10.b5 Nd8 11.Qc4=) 10...0–0–0 (10...h6 11.Nf3 a6 12.Na4=) 11.Nb5 (11.Qf7 Re8+=) 11...a6 (11...h6!? 12.Bf6 gf6=) 12.Nd4+= (12.Nf7? Be6 13.Qd3 Qf7–+) 12...Nd4 13.ed4?? (better is 13.Bd4 h6 14.Nf3+= (14.Nf7 Be6 15.Qd3 Bf7–/+)) 13...Re8–+ 14.Kd1 Ng4 15.Bd3 (15.Bd3 Nf2 16.Kc2 Bd3 17.Kc1 Qc6 18.Bc3–+; 15.Nh3 Nf2!! 16.Nf2 Bg4 17.Ng4 Qg4 18.Be2 de2 19.Kc2 Qg6 20.Qd3 Qc6 21.Kb3 Qg2 22.Qf5 Kb8 23.Qf7–+). Nautiluschess – BeKind, ICS blitz, 2000.

3.Bb2 Qd7 4.e3 Nf6 5.Nf3 Ne4 (5...Qd6 6.b5 Na5 7.Be5+=) 6.Be2 e5 (6...Qf5 7.b5 Nd8 8.0–0+=) 7.Ne5 (7.b5 Ne7 8.Ne5 Qf5+/–) 7...Ne5 8.Be5 Bd6 9.Bd6 (9.Bd4 0–0+/–) 9...Nd6 (9...Qd6 10.0–0+/–) 10.0–0 (10.Nc3 Qe6+/–) 10...0–0 11.Bd3 Qa4 (better is 11...Qe6!?+/–) 12.Nc3+– Bf5?? (better is 12...Qc6 13.b5 Qd7+–) 13.Na4 Bd7 (13...Bd3 14.cd3 Rfe8 15.Qf3+–) 14.Nc5 Bc6 15.Qh5 g6 16.Qe5 (16.Qh4 Rfe8+–) 16...f6 17.Qc3 Bb5 18.Nb7! Nb7 Theme: Deflection from b5 19.Bb5 Nd6 20.Bc6 Rab8 21.Bd5 Rf7 22.Bf7 (better is 22.Qc7! Rb6+–) 22...Nf7 23.Qf6 (23.Qc7 Rd8+–) 23...Nh6 24.f4 (better is 24.Qf4 Nf7 25.Qc7 Rd8+–) 24...Ng4 25.Qe6 Kf8 26.Qg4 h5 27.Qg6 Ke7 28.f5 Kd7 29.Qe6 Kd8 30.f6 c6 (30...Rb5 31.f7 c6 32.f8Q Kc7 33.Qfc8 Kb6 34.Qec6) 31.Qe7 Kc8 32.f7 Rb5 (32...Rb4 33.f8Q) 33.f8Q 1–0. Woelfelschneider,Peter – Percy,Dale, FICGS, 2006.

3.Bb2 Bd7 4.e3 e6 5.Nf3 Nge7 6.c4 g6?? (better is 6...a6=) 7.Bh8+– dc4 8.Bc4 b5 (8...g5 9.Bf6 h6 10.d4+–) 9.Be2 (9.Bb5!? a5 10.Ng5 h6+–) 9...a6 10.Bb2 e5 (10...a5 11.ba5 Na5 12.Nc3+–) 11.d3 (11.Ne5!? Ne5 12.Be5 c5+–) 11...a5 12.ba5 Na5 (12...Bg7 13.d4 ed4 14.Bb5 Ra5 15.Qd3+–) 13.Nbd2 (better is 13.Ne5 Be6 14.Bf3 Ra6+–) 13...b4 (13...f6 14.d4+–) 14.ab4 Rb8 (14...Qb8 15.Ne5 Qb4 16.Qc2+–) 15.ba5 (better is 15.Ra5!? f6+–) 15...Rb2 16.Rb1 (16.Nc4 Rb5 17.Nfe5 Nc6 18.Nc6 Bc6+–) 16...Rd2 (16...Rb1 17.Qb1 f6 18.0–0+–) 17.Qd2 Nc6 18.0–0 Be7 19.Rfc1 f6 20.Ra1 f5 (20...Bd6 21.a6+–) 21.d4 (21.Qa2 Kf8+–) 21...ed4 (21...e4 22.Ne5 Ne5 23.de5+–) 22.Nd4 Nd4 23.ed4 g5 (23...Bg5 24.Qa2 Kf8 25.Rc2+–) 24.Bf3 (24.a6 Be6+–) 24...h6 (24...g4 25.Bb7 Bg5 26.Qe2 Kf8 27.a6 Bc1 28.a7+–) 25.a6 g4 26.Bc6 (better is 26.a7 gf3 27.a8Q Kf7+–) 26...Bc6 27.Rc6 Kf7 28.a7 h5 29.a8Q Qa8 30.Ra8 1–0. Fournier,Frederic (2025) – Chicot,Patricia (1655), Active Blind, 2007.

3.Bb2 Bf5 4.e3 Qd6 5.c4 dc4 6.Bc4 Bd3 7.Qb3 Bg6 8.Nf3 Nf6 9.Bc3 Nd7 10.d4 Nb6 11.Be2 e6 12.b5 Ne7 13.Bb4 Qd5 14.Qd1 Nf5 15.Bf8 Rf8 16.e4?? (Better is 16.Nc3 Qd6 17.Ne4+=) 16...Qe4–/+ 17.Nc3 Qf4 18.g3 Qd6 19.Ne4 Qe7 20.Nc5 0–0–0–+ 21.a4?? Nd4!! 22.Nd4 Qc5 0–1. guest689 – crafty, ICC, 1999.

3.Bb2 f6 4.e3 =.

3.Nf3 e5 4.b5 Nd4 5.Nd4 ed4 6.Bb2 Bc5 7.e3 Qe7 8.Be2 de3? (8...Qe4 9.0–0=) 9.fe3 (9.Bg7 Qh4 10.de3 Be3 11.Rf1+– (11.Qd5 Qf2 12.Kd1 Ne7=)) 9...d4 (9...Qh4 10.g3 Qg5 11.0–0=) 10.0–0 (10.ed4 Qh4 11.g3 Qe4=) 10...Qd6 (10...de3!? 11.de3 Be3 12.Kh1 Qg5+=) 11.Kh1= Nf6 (worse is 11...de3 12.Bg7 Bd4 13.Bh8 Bh8 14.c3+–) 12.a4 (12.ed4!? Bd4 13.Bd4 Qd4 14.c3=) 12...de3+= 13.de3 0–0 (better is 13...Qd1!? 14.Bd1 Be7= (14...Be3? 15.Re1+–)) 14.Qd6+/– Bd6 15.Bf6 gf6 16.Nd2 (16.Bc4 Be6 17.Nd2 Bc5+=) 16...Re8 17.Nc4 (worse is 17.Rf6 Be5 (17...Re3?! 18.Bc4=) 18.Raf1 Bf6 19.Rf6 Re3–+) 17...f5 (17...Bc5 18.Rae1+=) 18.Bd3 (18.Rad1 Bc5+=) 18...Bc5 The isolani on e3 becomes a target 19.Bf5 Be3 20.Bh7! (worse is 20.Ne3 Re3 21.Bd3 Bg4+=) 20...Kh7 21.Rae1 (worse is 21.Ne3 Re3 22.Rf7 Kg6 23.Rc7 Re2+=) 21...Re4 (21...Be6 22.Ne3 Rad8 23.Rf2+/–) 22.Ne3 (worse is 22.Re3 Rc4 23.Rf7 Kg6–/+) 22...Be6 23.c4 Re8 24.Nd5 (better is 24.c5!?+=) 24...Bd5+= 25.cd5?? (25.Re4 Be4 26.Rf7 Kg6 27.Rc7–/+) 25...Re1–+ 26.Re1 (26.Kg1–+) 26...Re1 0–1. Pesch,Wolfgang – Lilley,Simon, compuserve, 1996.

2.a3 Bf5

3.Bb2 a6 4.Nf3 Nc6 (4...f6 5.Nh4 Bg4 6.f3=) 5.e3 e5 (5...Nf6!?=) 6.Ne5+/– Ne5 7.Be5 Qe7 (7...Nf6 8.Nc3+/–) 8.f4 (8.d4 Nh6+/–) 8...f6 (8...Nf6 9.Be2+/–) 9.Bd4 Qe4 (9...b6 10.b5+/–) 10.Nc3 Qc2? (better is 10...Qe6+/–) 11.Qc2+– (11.Qc2 Bc2 12.Nd5+–; 11.Nd5?! Qd1 12.Rd1 0–0–0+/–) 1–0. marre – mzqe, internet, 2010.

3.d3 e5 4.g3 (4.Nf3 a5=) 4...Nd7 5.Bg2 c6 (5...Ngf6 6.Nf3+=) 6.e4= Be6 7.Ne2 (7.ed5 cd5 8.Nf3 Ngf6=) 7...Bd6 (7...Ngf6 8.0–0+=) 8.0–0 Ne7 9.f4 f6 (9...Qb6 10.Kh1 Bg4 11.c4 dc4 12.dc4+=) 10.Nd2 (10.d4!?=) 10...0–0 11.f5 Bf7 12.Bb2 (12.c4 a5 13.c5 Bc7+=) 12...d4 (12...a5!? 13.c3 Qb6 14.Rf2 Rfd8–/+) 13.Nc4+= Bc7 14.g4 (14.c3 b5 15.Nd2 dc3 16.Bc3 Bb6 17.Kh1 c5–/+) 14...b5 15.Nd2 a5 16.Nf3 ab4 (16...Nb6 17.g5–/+) 17.ab4+= Ra1 18.Ba1 (18.Qa1 Nb6+=) 18...c5–/+ 19.c3 cb4 (better is 19...dc3!? 20.Bc3 Nc6–/+) 20.cd4+= ed4 21.Nfd4 Qb8 22.h3 Bb6 (22...Qb6!? 23.Qd2 Be5–/+) 23.Kh1= Bc5 24.Nb3 (24.Ne6 Rc8=) 24...Bd6 (24...Be3 25.Ned4+=) 25.Bd4 (25.Ned4 Rc8=) 25...Nc6 26.Be3 Nde5 (26...Qa8 27.Qb1+=) 27.Ned4 (better is 27.g5!? Be7 28.gf6 Bf6 29.d4=) 27...Nd4–/+ 28.Bd4 Nc6 (28...Rc8!?–/+) 29.Be3+= Rc8 (29...Qa8 30.Qc2 Rc8 31.Ra1+=) 30.g5 fg5 31.Bg5= h6 32.Be3 Kh8 33.Nd4 Nd4 34.Bd4 b3 35.Qa1 Bf8 36.e5 Qc7? 37.e6+/– Bg8 38.Be5+– Qc5?? 39.f6 Be6 40.fg7 Bg7 41.Bg7 Kh7 42.Be4 Kg8 43.Bh6 1–0. zrenjanin (1955) – cricketmad5wk, gameknot.com, 2010.

3.e3 e6 4.Nf3 Bd6 5.Be2 e5 6.0–0 Nd7 7.d3 Ngf6 8.Re1 (8.Nc3 a5 9.Bb2 ab4 10.ab4 0–0 11.Ra8 Qa8+=) 8...h6 (8...a5 9.ba5 Ra5 10.Nc3+=) 9.e4 de4 10.de4 Be4 (worse is 10...Ne4 11.Bd3 Ndf6 12.Bb2=) 11.Nh4 (11.Nc3!? 0–0 12.Ne4 Ne4 13.Bb2+=) 11...Bh7 12.Bc4 (12.Nc3!? 0–0 13.Rb1–/+) 12...0–0 13.Nc3 e4 14.Ne4?? (better is 14.f4–+) 14...Be4 (14...Ne4 15.Nf3 Qf6 16.Be3–+) 15.c3 (15.f3 Ne5 16.Bb3 Bh7–+) 15...Ne5 16.Bb3 g5 (16...Nd3 17.Re2 Be5 18.f3 Bc3 19.fe4 Ba1 20.Be3 Ne4 21.Nf5–+) 17.Nf3 (17.f4 gh4 18.fe5 Be5 19.Bh6 Bc3 20.Bf8 Qd4 21.Kh1 Ba1–+ (worse is 21...Rf8 22.Qd4 Bd4 23.Rad1–+; worse is 21...Kf8 22.Qd4 Bd4 23.Rac1–+)) 17...Bf3 18.gf3 Ng6 (18...Re8 19.Re3 Qd7 20.Bb2–+) 19.c4 (19.Qd4–+) 19...Qc8 20.Bb2 (20.f4 Nh4 21.Qd3 Qg4 22.Qg3 Nf3 23.Kf1 Ne1 24.Qg4 Ng4 25.Ke1 Rfe8 26.Kf1 Bf4 27.Bf4 gf4–+) 20...Qf5 (20...Qh3 21.Qc2 Nh4 22.Qg6 Ng6 23.Bc2 Bh2 24.Kh1 Bg3 25.Kg1 Qh2 26.Kf1 Qf2) 21.Bc2 (21.Re3 Nh4 22.Kf1 Bf4–+) 21...Qf4 (better is 21...Qh3 22.Qd6 cd6 23.Bg6 fg6–+) 22.Bg6 Qh2 23.Kf1 fg6 24.Qd4 (24.Qd3 Kh7 25.Bf6 Rf6–+) 24...Rae8 (better is 24...Rad8 25.Rad1 Qh3 26.Ke2 Rfe8 27.Kd2 Bf4 28.Kc2 Rd4 29.Bd4 Qf3 30.Re8 Ne8–+) 25.Re8 (25.Re4 Re4 26.fe4–+) 25...Qh1 26.Ke2 Re8 27.Kd2 Qf3 28.Rf1 Be5 29.Qd5 Qd5 30.cd5–+ Bb2 31.a4 Nd5 32.b5 Bc3 33.Kc2 Ba5 34.f3 Re3 35.f4 gf4 36.Rg1 g5 37.Kd1 Nc3 38.Kc1 Re2 39.Rh1 Kg7 40.Rf1 Bb4 41.Rf3 Ba3 0–1. pieeater – RWO, ChessWorld.net, 2012.

3.Bb2 Nc6

4.d3 d4 5.Nf3 e5 (5...a6 6.e4 Bc8 7.c4=) 6.e3 (6.b5!? Nce7 7.Ne5+=) 6...de3= 7.fe3 Bd6 (7...e4 8.Nd4 Bd7 9.Nd2 ed3 10.Bd3 Qh4 11.g3=) 8.Be2 e4?? (better is 8...f6=) 9.de4+– Be4?! (9...Bg4 10.Bg7 Bf3 11.Bf3 Qh4 12.Ke2 Be5 13.Bh8 Bh8+–) 10.0–0 (10.Bg7 Bf3 11.Bf3 (11.Bh8?! Bg2 12.Rg1 Qh4 13.Kd2 Qh2=; 11.gf3?! Qh4 12.Kf1 0–0–0 13.Bh8 Be5 14.Qd8 Kd8 15.Be5 Ne5+/–) 11...Qh4 12.Kf1+–) 10...Nf6 11.Bf6 (better is 11.b5!? Nb8 12.Nfd2+/–) 11...Qf6+= (worse is 11...gf6 12.Nc3 f5 13.b5+/– (worse is 13.Ne4 fe4 14.Nd2 Qh4–/+)) 12.Nbd2 0–0?? (better is 12...Bf3 13.Rf3 Qe7=) 13.Ne4+– Qg6 14.Nd6 cd6 15.Qd3 Qd3 16.Bd3 d5 17.Nd4 (17.e4 Ne7+–) 17...Nd4 (17...Rfe8 18.Rae1+–) 18.ed4 Rfe8 19.Rae1 Re1 20.Re1 g6 (20...Kf8 21.Kf2+– (21.Bh7?! g6+–)) 21.Re7 a6 (21...b6 22.Rd7+–) 22.Rb7 a5 23.Rd7 (better is 23.b5!? Re8+–) 23...ab4 24.ab4 Ra4 25.c3 Ra3 26.Rc7 Ra1 27.Bf1 Rc1 (27...Kg7 28.Kf2 Ra2 29.Be2+–) 28.Kf2 Rc2 29.Be2 h5 30.Ke3 Kg7 31.Kd3 g5 (31...Rc1+–) 32.Kc2 Kg6 33.g3 f6 34.h3 (34.b5 h4 35.b6 g4 36.b7 Kh5 37.b8Q hg3 38.Qg8 gh2 39.Rh7) 34...f5 Black intends g4 35.Rc6 Kf7 36.Rd6 Ke7 37.Rd5 g4 38.Rf5 gh3 39.Rh5 h2 40.Rh2 Kd6 41.g4 Kd5 42.g5 Ke4 43.g6 Kf5 44.g7 Ke6 45.g8Q Kd7 (45...Kf6 46.Rh6 Ke7 47.Qg7 Kd8 48.Rh8) 46.Rh7 (46.Qf7 Kc8 47.Rh8) 46...Kc6 (46...Kd6 47.Qd8 Kc6 48.b5) 47.Qg5 (47.Qe6) 47...Kd6 48.Rh6 (48.Qe5 Kc6 49.Qe6) 48...Kd7 (48...Kc7 49.Qe7 Kc8 50.Rh8) 49.Qg7 Ke8 (49...Kc8 50.Rh8) ½–½. Fournier,Frederic (1940) – conetl (1800), Active, 2004.

4.e3 d4 5.ed4 (better is 5.b5!? Na5 6.Bd4+/– (worse is 6.ed4 Qd5+=)) 5...Nd4+= 6.Nf3?? (better is 6.d3+=) 6…Nc2–+ (6...Nc2 7.Qc2 Bc2–+) 0–1. Fournier,Frederic – Alfil211, Partie evaluee, 0m + 1s, 2008.

4.e3 f6 5.Nf3 =.

3.Bb2 Nd7

4.e3 c6 5.h3 (5.Nf3!?=) 5...e5+= 6.Nf3 Bd6 7.d3 h6 8.Nbd2 Ngf6 9.Be2 Qc7 10.c4 Be6 11.cd5 cd5 12.Rc1 Qb6 13.Nb3 0–0 14.g4 Rfc8 15.g5 Rc1 16.Bc1 hg5 17.Ng5 Bf5 18.h4 Be7 19.Nf3 Bg4 20.Ng5 (20.h5 e4 21.Nfd4 Ne5 22.de4 Be2 23.Ke2 Ne4+=) 20...Bf5 (20...Be2 21.Qe2 Bb4 22.ab4 Qb4 23.Nd2–/+) 21.Nf3 Rc8 22.Bb2 Bd6 23.h5 Bg4 (23...Qc7!?=) 24.h6+= Bf3 25.Bf3 g6 26.Bg4 (better is 26.Bg2+=) 26...Bb4!–/+ 27.ab4 (better is 27.Kf1!? Bc3 28.Bd7 Nd7 29.Qc2–/+) 27...Qb4–+ 28.Kf1 Qg4 29.Qa1?? (29.Qd2–+) 29...Rc2 30.Nc1 (30.Qe1 Rb2 31.Nd2–+) 30...Qf3 31.h7 Kh8 (31...Kh8 32.Rh2 Ng4–+) 0–1. Pozanco Romasanta,Marc (1725) – Vazquez Torres,Adrian (1980), ESP–ch U14 Padron, 2008.

4.e3 e5 5.Nf3 Bd6 6.c4 dc4 7.Bc4 =.

4.e3 Ngf6 5.d3 a5 6.b5 +=.

4.e3 Ngf6 5.d3 e5 6.Nf3 Bd6 7.Be2 0–0 8.0–0 Rc8 9.c4 b6 (9...c6 10.Nc3=) 10.Nbd2 (10.cd5 c5+/–) 10...dc4 (10...c6 11.e4 Bg4 12.ed5 cd5 13.cd5=) 11.dc4 c5 12.b5 Qc7 13.Nh4 Be6 14.e4 Rfd8 15.g3 (15.Nhf3 h6=) 15...Be7 16.Qc2 Nf8 17.a4 (17.f4 ef4 18.Rf4 Ne8=) 17...Rd7 (17...Bh3 18.Rfe1+=) 18.Ra3 (18.Rfd1 Rcd8=) 18...Rcd8 19.Rd1 Ne8 20.Ng2 Bg5 21.Nf3 Bf6 22.Ne3 Ng6 23.Rad3 Rd3 24.Rd3 Rd3 25.Bd3 Qd6 26.Nd5 Bd8 27.Bc3 Bg4 28.Nd2 Nc7 29.f3 Bd7 30.Nb3 Ne6 31.Kf2 Nd4 32.Qa2 White prepares the advance a5 32...Ne7 33.Nd4 ed4 34.Bd2 Ng6 35.a5 Ne5 36.Bf1 f5 (36...Qe6!?=) 37.ab6+= ab6 38.Qa8 Nf7 39.Bf4 Qf8 40.Qb7 Be6 41.Nb6 Bg5? (41...g5!? 42.ef5 Bf5+/–) 42.Bg5 (42.ef5!? Nd8 43.Qe4 Bf4 44.fe6 Be3 45.Ke1 Bg5+–) 42...Ng5 43.e5 Nf7 44.Nd7 Bd7 45.Qd7 Ne5 46.Qd5 Nf7 47.Qf5 1–0. Sapareva,Magdalena (1675) – Shiliafov,Georgi, ch–BUL Seniors, 2011.

4.e3 Ngf6 5.d3 g6 6.Be2 Bg7 (6...e5 7.Nf3 a5 8.Ne5 (worse is 8.Be5 Ne5 9.Ne5 ab4+=) 8...Ne5 9.Be5+/–) 7.Nf3 (7.g4 Be6=) 7...0–0 (7...c5 8.0–0=) 8.Nbd2 (8.Nd4 Ne8=) 8...Re8 (8...c5=) 9.e4 (better is 9.Nd4!? c5 10.Nf5 gf5 11.c4+=) 9...de4+= 10.Ne4 Be4 (10...Ne4 11.Bg7 Nf2 12.Kf2 Kg7 13.Rf1–/+) 11.de4+= Ne4 12.Bg7 Kg7 13.Qd5 Nd6 14.Qd4 (14.0–0 e6 15.Qb3 Qf6+=) 14...e5–/+ 15.Qc3 Ne4 (15...Nf6 16.Rd1–/+) 16.Qd3 (16.Qe3 Nef6+=) 16...Ndf6–/+ 17.Qd8 (17.Qe3 Qd6–/+) 17...Rad8 (17...Red8?! 18.Ne5 Re8 19.Nc4+=) 18.0–0 (18.Rd1 Rd1 19.Bd1 Nc3–+) 18...Nd2 (18...Nc3 19.Bc4–+) 19.Nd2 (19.Rfd1!? Nf3 20.Bf3–/+) 19...Rd2–+ 20.Bd3 (20.Bd1 Red8–+) 20...e4 21.Bb5 Re5 (21...Red8 22.Ba4–+) 22.Ba4 (22.c4 Rf5 23.h3 c6–+) 22...Rg5 (22...Nd5 23.Bb3 Nc3 24.Rae1–+) 23.Rad1 Rgd5 (23...e3 24.Rd2 ed2 25.Rd1–+) 24.c4 White prepares the advance b5 24...R5d4 25.Rfe1 (25.c5!?–/+) 25...Rd1–+ 26.Bd1 Rc4 27.b5 (27.f3 Rd4–+) 27...Rc1 (27...Rc3 28.a4–+) 28.Kf1 Nd5 29.Bb3 Re1 30.Ke1 Nf4 31.g3 (31.Kd2 f5 32.g3 Nd3–+) 31...Nd3 32.Kd2 Nf2 33.Ke3 Ng4 (33...Nd3 34.Bd5–+) 34.Ke4 Nh2 35.Bd1? (35.Bd5 a6 36.Bb7 ab5–+) 35...Nf1 (35...f5 36.Kd4–+) 36.g4 (36.Kf4 c6–+) 36...Kf6 (better is 36...f5 37.Kd4 Nd2–+) 37.Kd5 (37.Kf4–+) 37...Kg5 (better is 37...Ne3 38.Ke4 Nd1–+) 38.Ke5 (38.Kd4 Nh2–+) 38...Ne3 39.Bb3 Ng4 40.Kd4 f5 0–1. Childress,Steven – Benbachir,Khalid, IECC, 1999. (=1.a3 d5 2.b4 Bf5 3.Bb2 Nd7)

4.e3 Ngf6 5.Nf3 e6 =.

4.Nf3 e6 5.Nc3 Ngf6 6.Nh4 Bg6 7.e3 a6 8.g4 c5 9.g5 Ne4 10.Ng6 hg6 (10...Nc3 11.Bc3 hg6 12.f4=) 11.Ne4+= de4 12.Qg4 cb4 13.ab4 (worse is 13.Qe4 ba3 14.Ba3 A) worse is 14...Qg5 15.Bf8 (worse is 15.Qb7 Rb8 16.Qc6 Qe5+=) 15...Rf8 16.Qb7+/–; B) 14...Qa5+=) 13...Rc8 (13...Bb4!? 14.Qe4 Bf8+=) 14.Qe4+/– Qg5 15.Qb7 Rc2 (better is 15...Rb8!? 16.Qc6 Rb4+/–) 16.Bc3+– Bd6 17.Qc8 Qd8 18.Qd8 Kd8 19.Bd3 (19.Ba6?! Be5 20.Be5 Ne5+/–; 19.Ra6?! Rc1 20.Ke2 Ke7+/–) 19...Rc3 20.dc3 Be5 21.Kd2 Ke7 22.Ra6 Rc8 (22...Rh2 23.Rh2 Bh2 24.c4+–) 23.c4 g5 24.Ra7 Ke8 25.c5 Nb8 (25...Bb8 26.Rb7+–) 26.Bb5 Kf8 27.Rg1 Bf6 28.h3 Nc6 29.Bc6 Rc6 30.Kd3 Be7 (30...Rc8+–) 31.Ra8 (31.Ra8 Bd8 32.Rd8 Ke7 33.Rh8+–) 1–0. pcmvr – mpenga (2560), net–chess.com, 2016.

4.Nf3 e6 5.e3 Bd6?? (better is 5...Ngf6=) 6.Bg7+– Ngf6 (6...Ne5 7.Bh8 (worse is 7.Be5 Nf6+–) 7...Nf3 8.gf3+–) 7.Bh8 Qe7 8.Nc3 (8.Nd4 0–0–0 9.Nf5 ef5 10.Bf6 Nf6+–) 8...0–0–0 9.Bf6 Qf6 10.Bd3 Bd3 11.cd3 Ne5 (11...Kb8 12.Nb5+–) 12.Ne5 Be5 (12...Qe5 13.Rc1+–) 13.d4 Bd6 14.Nb5 Be7 (14...a6 15.Nd6 Rd6 16.Rc1+–) 15.Na7 Kb8 16.Qa4 Rd6 17.b5 Rb6 18.0–0 Bd6 19.f4 Qh4 (19...h5 20.Rac1+–) 20.Rf3 e5 (20...Qe7 21.Rh3+–) 21.Rh3 Qf6 (21...Qd8 22.de5 Qh8 23.d4+–) 22.fe5 Be5 23.de5 Qe5 24.Rc1 h5 25.Rf3 (25.Rg3 Qh8+–) 25...f5 26.Rg3 Qe8 (26...Qh8+–) 27.Rg7 c5 28.bc6 Ra6 (28...d4 29.c7 Ka8 30.c8Q Qc8 31.Rc8) 29.cb7 (29.Rb7 Ka8 30.Qa6 Qe3 31.de3 d4 32.Nc8) 29...Qa4 (29...Rc6 30.Nc6 Qc6 31.Qa8) 30.Rc8 Ka7 31.b8Q 1–0. marre – oppo, internet, 2010.

4.Nf3 h6 5.e3 Ngf6 6.Be2 e6 7.0–0 a6 (7...c5 8.bc5 Bc5 9.Nd4=) 8.Nd4 Bg6 (8...Bh7 9.d3=) 9.f4. pcmvr (2390) – redrook (2470), net–chess.com, 2006.

4.Nf3 Ngf6

5.Nh4 Bg4 6.h3 Bh5 7.g4 Bg6 8.Bg2 c6 9.d3 (9.Ng6 hg6 10.Nc3 (10.d3 e6 11.Nd2 Bd6 12.c4 0–0 13.Qc2 a5 14.c5) 10...e6 11.e4 Nb6 12.ed5 Nfd5 13.Nd5 Nd5 14.Qf3) 9...e5 (9...e6 10.Nd2 Bd6 11.Ndf3 0–0 12.c4 c5 13.b5 a6 14.ba6; 9...Qc7 10.Nd2 e6 11.c4 a5 12.b5 Bc5 13.Nb3 a4 14.Nc5) 10.Nd2 h6 (better is 10...a5!? 11.b5 cb5= (11...Bc5 12.Nb3 Bb6 13.Ng6 fg6 14.0–0) 12.g5 Nh5 13.Bd5 Nc5 14.Ng6) 11.Ng6+/– fg6 12.c4 d4 (12...Qe7 13.cd5 Nd5 14.Qb3) 13.Qb3 Be7 (13...Qc7 14.c5) 14.c5 Nd5 (14...Qc7!?+/–) 15.Bd5+– cd5 16.Qd5 Qc7 17.0–0 h5 18.Nc4 hg4 (18...Qc6 19.Qc6 bc6 20.f4 hg4 21.hg4+–) 19.Nd6 Bd6 20.cd6 Qd8 21.Qe6 (21.hg4?! Qg5 22.Qb7 Qg4 23.Qg2 Qg2 24.Kg2 Kf7+/–) 21...Kf8 22.f4 gh3 (22...e4 23.Bd4 gh3+–) 23.fe5 Nf6 24.ef6 gf6 (24...Rh4 25.fg7 Kg7 26.Rf7 Kh6 27.Bc1 Qg5 28.Bg5 Kh5 29.Bh4 h2 30.Kh2 Kh4 31.Qg6 Rc8 32.Rh7) 25.Rf6 Kg7 (25...Qf6 26.Qf6 Kg8 27.Qg6 Kf8 28.Rf1) 26.Qf7 Kh6 27.Qg6 1–0. pierre – oppofu, internet, 2010.

5.Nh4 Bg4 6.h3 Bh5 7.g4 Bg6 8.Bg2 e6 A) 9.Nc3 A1) 9...a5 10.Ng6 hg6 11.e4 d4 12.Nb5 e5 13.f4 ab4 14.fe5; A2) 9...c5 10.bc5 (10.Ng6 hg6 11.bc5 Bc5 12.e3 g5 13.Qe2 Rc8 14.h4) 10...Bc5 11.e3 0–0 12.0–0 a6 13.d3 Qc7 14.Qd2; A3) 9...c6 10.0–0 (10.Ng6 hg6 11.e4 Ne4 12.Be4 de4 13.Ne4 a5 14.Qe2) 10...Bd6 11.Re1 Qb6 12.Ng6 hg6 13.e4 0–0–0 14.ed5; B) 9.d3 B1) 9...c5 10.Qd2 Qb6 11.e3 Bd6 12.Nc3 cb4 13.Na4 Qd8 14.ab4; B2) 9...Bd6 10.Nd2 (10.c4 0–0 11.c5 Be7 12.Ng6 hg6 13.Nc3 c6 14.0–0; 10.Ng6 hg6 11.c4 c6 12.c5 Bc7 13.Nc3 Qe7 14.Qd2) 10...Be5 11.d4 Bd6 12.Ng6 hg6 13.c4 c6 14.c5; B3) 9...a5 10.Qd2 (10.b5 Bd6 11.Nd2 0–0 12.Ndf3 Nc5 13.Bc3 Re8 14.Qd2; 10.Ng6 hg6 11.b5 Bd6 12.Nc3 Nc5 13.d4 Nce4 14.Qd3) 10...Bd6 11.b5 0–0 12.Nc3 Ne5 13.0–0 Nfg4 14.Ng6; C) 9.Ng6 hg6 10.Nc3 (10.c4 c6 11.cd5 Nd5 12.e3 a5 13.b5 cb5 14.Nc3) 10...g5 11.Nb5 a6 12.Nd4 c5 13.Nf3 cb4 14.ab4.

5.Nh4 Bg6

6.e3 Bh5 7.Be2 Be2 8.Qe2 e6 9.Nf3 Bd6 10.0–0 0–0.

6.Ng6 hg6

7.Nc3 e5 (7...e6 8.e3 a6 9.Be2 Bd6 10.h3 e5; 7...a5 8.e3 ab4 9.ab4 Ra1 10.Qa1 e5; 7...c5 8.bc5 e5 9.e3 Bc5 10.Rb1 Rc8) 8.e3 a6 (8...c6 9.b5 Bd6 10.Be2 Nb6) 9.g3 (9.d3 c5 10.bc5 Bc5=; 9.Ra2 Bd6 10.b5 d4) 9...Bd6 10.Bg2 Nb6 11.0–0 (better is 11.d3+=) 11...Ng4?? Attacks the backward pawn on h2 (better is 11...a5+=) 12.Qg4+– Qf6 (12...c6+–) 13.Nd5 (13.Nd5 Nd5 14.Bd5+–) 1–0. marre – tifon, internet, 2010.

7.e3 a5 8.Nc3 e6 9.ba5 Ra5 10.h3 c6.

7.e3 a6 8.c4 dc4 9.Bc4 e6 10.d4 Nb6.

7.e3 e5 8.c4 a5 9.ba5 c6 10.cd5 Nd5.

7.e3 e6 8.c4 c6 9.h3 Be7 10.Be2 dc4 11.Bc4 0–0 12.0–0 Nb6 13.Be2 a5 14.b5 cb5 15.Bb5 Ne4 16.Qe2 Rc8 17.Nc3 Nd6 (17...Nd2? 18.Rfd1+–) 18.Rfc1 Nb5 19.Nb5 Qd7 20.Bc3 a4 21.Rab1 Nd5 22.Qg4 Nc3 (22...Nb6 23.Qf4=) 23.dc3 Ra8 24.Rd1 Qc6 25.Rd4 Ra5 26.c4 Rd8 27.Rd8 Bd8 28.Qf4 Ra8 29.Rd1 g5 30.Qg4 Be7 31.Rd3 ½–½. Woelfelschneider,Peter – Tawalika, 2009.

7.e3 e6 8.h3 Bd6 9.Nc3 a5 10.b5 Nb6.

3.Bb2 e6

4.d3 a5 5.ba5 Ra5 6.Nf3 Bd6?? (6...Nf6 7.Nbd2+=) 7.e3 (better is 7.Bg7 Nf6 8.Bh8+–) 7...Nf6+= 8.Be2 0–0 9.0–0 Nc6 10.Nd4 (10.Nh4!?=) 10...Nd4–/+ 11.Bd4 e5 12.Bb2 e4 13.de4 Ne4 14.Bd3 Qg5 15.g3 Bh3 16.Re1 Ng3! 17.fg3? (17.fg3 Bg3; 17.hg3 Bg3) 17...Bg3! 18.hg3 (18.hg3 Qg3 Mate attack) 18...Qg3 19.Kh1 Qg2 0–1. Fournier,Frederic (1820) – cestbonlesoleil (1770), rated blitz game (3/0), 2002.

4.d3 c6 5.g3 Nd7 6.Bg2 Ngf6 7.Nd2 h6 (7...a5!?+=) 8.e4= Bh7 (8...de4 9.de4 Bg6 10.e5+=) 9.e5+= Ng8 10.d4 (10.Ngf3 Ne7+=) 10...g5 (10...a5 11.c3=) 11.Nf1 (11.Ne2!?+=) 11...Bg7 12.Ne3 f6 (12...Ne7 13.Nf3=) 13.Qh5+= Kf8 14.ef6 (14.Ne2 fe5 15.0–0 Ngf6+=) 14...Ngf6+= 15.Qe2 Kf7 16.Nf3 Rf8 17.0–0 Kg8 18.Bh3 Qe7 19.Ng4 (better is 19.Nf5! Bf5 20.Bf5+/–) 19...Ng4 20.Bg4 Attacking the backward pawn on e6 20...Rae8 21.Bh5 Rd8 22.Ne5 (22.Bg4 Bf5 23.Bf5 Rf5=) 22...Ne5+= 23.de5 Qc7 (23...c5 24.Rfe1+=) 24.Bg4 Rde8 (24...Bf5 25.f4=) 25.Rac1 (25.c4 a5+=) 25...Be4 (25...c5 26.Rfd1 b6 27.Rd2=) 26.f3 (26.Qe3 a5+= (26...Be5? 27.Be5 Qe5 28.f3+–)) 26...Bf5 27.Qe3 Bg4 28.fg4 a6 29.Bd4 Rf1 30.Rf1 Rf8 31.Rf8 Kf8 32.Bc5 Kg8 33.Bd6 Qf7 34.Qd3 Bf8 35.c4 Kg7 36.Bf8 Kf8 37.cd5 cd5 38.Qc3 Qd7 39.Qc5 Kg7 40.Kf2 Kf7 41.Ke1 Qe7 42.Qc8 Kg7 43.Kd1 Qf7 44.Ke2 Kh7 45.a4 Kg7 46.b5 ab5 47.ab5 Kg6 48.b6 Kg7 49.Qd8 Kh7 50.Qc7 Kg7 51.Kd2 Kf8 52.Kc3 Qf3 53.Kb4 Qf7 (53...Qg4 54.Kc5 h5 55.Qb7 Qc4 56.Kd6 Qb4 57.Kd7 Qe7 58.Kc6+–) 54.Qd8 Kg7 55.Qc7 Kf8 56.Qd8 Kg7 57.Ka5 Qf8 58.Qc7 Qf7 59.h4 gh4 60.gh4 Kf8 61.Qd8 Kg7 62.g5 hg5 63.Qg5 Qg6 64.Qe7 Qf7 65.Qc7 Kf8 66.h5 d4 (better is 66...Kg7 67.Kb5 Kg8=) 67.h6 Qg8 (67...Qf3+–) 68.Qb8 Kf7 (68...Ke7 69.Qg8 Kd7 70.Kb4 d3 71.h7 d2 72.h8Q d1Q 73.Qe8) 69.Qb7 Kg6 (69...Ke8 70.Qc8 Kf7 71.Qg8 Kg8 72.Kb4 d3 73.Kc3 Kf8 74.h7 Kg7 75.b7 Kh7 76.Kd3 Kg7 77.Kd4 Kf8 78.b8Q Ke7 79.Qa7 Kf8 80.Qh7 Ke8 81.Kc5 Kd8 82.Kd6 Ke8 83.Qe7) 70.Qg2 Kh7 (70...Kf7 71.Qg8 Kg8 72.Kb4 d3 73.Kc3 Kf7 74.Kd3 Kg8 75.Kd4 Kf7 76.h7 Kg7 77.Kd3 Kh7 78.Kd4 Kg6 79.b7 Kg7 80.b8Q Kf7 81.Qd6 Kg7 82.Qe7 Kh6 83.Qf8 Kg6 84.Ke3 Kh7 85.Ke4 Kg6 86.Qg8 Kh5 87.Qg7 Kh4 88.Kf4 Kh5 89.Qg5) 71.Qg8 Kg8 72.Kb4 1–0. Goodhue,N (2020) – Zhang,Jasmine, 122nd ch–NZL Open, 2015.

4.d3 Bd6?? 5.Nd2 (better is 5.Bg7 Be5 6.Be5+–) 5...Nf6+= 6.Ngf3 0–0 7.e3 Nbd7 8.Be2 c6 9.0–0 Qc7 10.h3 Rae8 (10...a5 11.ba5 Ra5 12.Nh4+=) 11.c4 (11.g4 Ng4 12.hg4 Bg4+/–) 11...Ne5 (11...e5 12.Rc1 e4 13.de4 de4 14.Nd4 Bh2 15.Kh1+=) 12.Ne5 Be5 13.Qc2 dc4 14.Nc4 Bb2 15.Qb2 Rd8 16.Rfd1 Rd7 17.Rac1 Rfd8 18.Ne5 Rd6 (18...Rd5 19.f4+=) 19.b5 (better is 19.e4 Be4 20.de4 Ne4 21.Rd6 Qd6 22.Bd3+–) 19...Qb6?? (19...Rd5 20.bc6 Qe5 21.Qb7 Ne8+– (21...Bd3?? 22.c7 Qc7 23.Rc7 Be2 24.Rd5 ed5 25.Rf7+–)) 20.Nc4+– Qb5 (20...Qc7 21.Nd6 Qd6+–) 21.Qb5 cb5 22.Nd6 Rd6 (22...a6+–) 23.Rc8 (23.Rc8 Rd8 24.Rd8 Ne8 25.Re8) 1–0. Wojcieszyn,Zdzislaw (2055) – Kardasz,Wladyslaw (1920), Druzynowe Mistrzostwa Polski Niewidomych Poland, 2008.

4.d3 Nf6 5.Nd2 +=.

4.d4 a5 5.c3 (5.b5 Nf6+=) 5...Nf6 6.e3 ab4 7.cb4 Ne4 8.Bd3 Bd6 9.Nf3 0–0 10.0–0 Bg4 11.h3 Bf3 12.Qf3 Nf6 13.Nc3 Nc6 14.Rfc1 Qd7 15.Ne2 (15.Nb5 Be7+=) 15...Rfe8 16.Nf4 e5 17.Nd5 Nd5 18.Qd5 ed4 19.Qg5 Be5 (19...h6!? 20.Bf5 Qe7+=) 20.b5+= Nd8 (20...Na7!?+=) 21.ed4+/– Bd4 22.Bh7! Kh7 Decoy to h7 23.Qh4 Theme: Double Attack 23...Kg8 24.Qd4 (worse is 24.Bd4 Ra4 25.b6 c5 (25...Qd4 26.Qd4 Rd4 27.bc7+–) 26.Rc5 Rd4–/+) 24...Qd4 25.Bd4 Ne6 26.Be5 Rac8 27.a4 b6 (27...f6 28.Bg3+/–) 28.Rc6+– Re7 29.Rac1 Kf8? (better is 29...Ra8+/–) 30.Bd6!+– Ke8 (30...cd6 A pinning theme 31.Rc8) 31.Be7 (31.Be7 Ke7 32.Rb6 cb6 33.Rc8+–) 1–0. Fournier,Frederic – Gadelorge,Patrick, Partie amicale Paris, 1988.

4.e3 Nf6 5.c4 dc4 6.Bc4 Nbd7 7.Nf3 c6 8.d4 b5 9.Bd3 Rc8 (9...Bd3!? 10.Qd3 a5=) 10.Bf5+= ef5 11.Nbd2 Be7 12.0–0 0–0 13.Rc1 Re8 14.Qb3 g6 (14...a5!?=) 15.Ne5 Exerts pressure on the backward pawn 15...Ne5 16.de5 Nd7 17.f4 (17.Nf3 Bf8+/–) 17...Rf8? (17...c5!?=) 18.Nf3 Re8? (18...Nb6 19.Rfd1 Qe8 20.Bd4+/–) 19.Nd4 Bf8? 20.Nc6 Qb6 21.Nd4 Bg7 22.Rc2 Rc2 23.Qc2 Nb8 24.Rc1 Na6 25.Qc3 Qb7 26.Nf3 Rd8 27.Qe1 Rd3 28.Rd1 Rb3?? 29.Qd2 Rb2 30.Qb2 Bf8 31.Rd8 Nc7 32.Qd2 Ne6 33.Nd4 1–0. Fournier,Frederic – Gigilbo, Partie evaluee, 1m + 0s, 2009.

4.Nf3 Nf6 5.Bf6 Qf6 6.Nc3 Nc6 7.b5 Nd4 8.Nd4 Qd4 9.e3 Qf6 10.g4 Bg6 11.e4 Be4 12.Ne4 de4 13.Be2 Qe5 14.Bc4 Bc5 15.0–0 Bd6 16.Re1 Qh2 17.Kf1 0–0 18.a4 b6 19.d4 ed3 20.Qd3 Qh1 21.Ke2 Qh2?? 22.Kf1 Bb4 23.c3 Bc5 24.Qf3 Qd6 25.Rad1 Qe7 26.Bd5 Rad8 27.Kg1 Rd5?? 28.Rd5= Qh4 29.Rd7 Bd6 30.Qe4 Qh2 31.Kf1 Qh3 32.Ke2 Qc3 33.f4 Bb4 34.Rb1 Qa3?? 35.Rb4+– Qa2 36.Ke1 Qa1 37.Rb1 Qc3 38.Ke2 f5 39.Qe6 Kh8 40.Rb3 Qc2 41.Rd2 Qc5 42.g5 Qg1 43.Rd1 Qg2 44.Ke3 Qb7?? 45.Rbd3 Qc8 46.Qc8 Rc8 47.Rd8 Rd8 48.Rd8# 1–0. Dopey (1830) – derfman, ICS game chess.net, 1998.

3.Nf3 Nd7

4.Bb2 A) 4...Bg4 A1) 5.e3 e5 (5...Ngf6 6.h3 Bh5 7.g4 Bg6; 5...e6 6.h3 Bh5 7.Be2 Ngf6) 6.h3 Bf3 7.Qf3 Ngf6; A2) 5.h3 Bf3 6.ef3 Ngf6 7.c4 e6; B) 4...a5 B1) 5.ba5 Ngf6 (5...Ra5 6.e3 e6 7.Be2 Ngf6; 5...e6 6.a6 ba6 7.Nc3 c5) 6.a6 ba6 7.e3 c5; B2) 5.Nh4 Bg4 6.h3 Bh5 7.Nf3 ab4; C) 4...e6 5.e3 Ngf6 (5...a5 6.b5 Ngf6 7.Be2 Bd6) 6.Be2 Bg4 7.0–0 Bd6.

4.Nc3 A) 4...c6 5.d3 Ngf6 6.Bf4 Bg4 7.d4 e6; B) 4...e6 5.Bb2 a5 (5...Ngf6 6.Nh4 Bg4 7.h3 Bh5) 6.b5 Ngf6 7.Nh4 Bg4; C) 4...Ngf6= 5.d4 (5.Nh4 Be6 6.Bb2 Nb6 7.e3 Bg4) 5...e6 6.Nh4 Bg4 7.h3 Bh5.

4.d4 Ngf6 (4...e6 5.Bf4 Ngf6 (5...Ne7 6.e3 Ng6 7.Bg3 h5; 5...Be7 6.e3 Ngf6 7.Bd3 Bd3) 6.e3 Be7 7.Bd3 Bd3; 4...a5 5.b5 e6 (5...Rc8 6.Nh4 Bg4 7.h3 Bh5) 6.Bf4 Ngf6 7.e3 Be7) 5.Nc3 (5.Nh4 Bg4 (5...Bg6 6.Ng6 hg6 7.e3 e5) 6.h3 Be6 7.e3 a5; 5.Nbd2 e6 6.c4 Be7 7.e3 0–0) 5...e6 6.Bf4 (6.Nh4!?= Bg4 7.h3 Bh5) 6...Bd6–/+ 7.Bd6 (7.e3 Bf4+= (7...0–0+=)) 7...cd6 8.e3 (8.Nh4!?–/+) 8...Rc8–+ 9.Qd2 a6 (9...Qc7!? 10.Na2–+) 10.Bd3–/+ Bd3 (better is 10...Ne4 11.Be4 de4–/+) 11.cd3= (worse is 11.Qd3 Qc7 12.Ne2 Qc2 13.Qc2 Rc2–+) 11...e5 12.e4 0–0 13.0–0 Qb6 14.de5 d4?? (better is 14...Ne5 15.Rac1 Nf3 16.gf3 Qd4=) 15.Na4+– (15.ef6 dc3 16.Qg5 Nf6+=) 15...Qc6 (15...Ne4 16.de4 (16.Nb6?! Nd2 17.Nd7 Nf3 18.gf3 Rfd8+–) 16...Qb5 17.Nd4 Qa4 18.ed6+–) 16.ef6 Qa4 (16...Nf6 17.Nb2 Qc3 18.Rfd1+–) 17.fg7 Rfe8 (17...Kg7 18.Nd4 Kh8 19.Qh6+–) 18.Nd4 Re5 (18...Ne5 19.Nf5+–) 19.Nf5 (better is 19.Qh6!? Rce8+–) 19...Rf5 20.ef5 Rc2 (20...Qb5+–) 21.Qh6 Qc6 (21...Rc8 22.Rac1 Rd8 23.Rc7+–) 22.Rac1 Rc1 (22...d5 23.f6! Nf6 24.Rc2 Qc2 25.Qf6 Qd2+–) 23.Rc1 1–0. marus – newcastle, internet live, 2001.

2.a3 Nf6

3.e3 a5 4.b5 e5 5.Bb2 Bd6 6.c4 Bg4 7.Qb3 dc4 8.Bc4 0–0 9.Nc3 Nbd7 10.Na4 Qe7 11.h3 Bf5 12.Nf3 Ne4 13.d3 Ndc5 14.Nc5 Nc5 15.Qc3 (15.Qc2 Qf6=) 15...Na4=+ 16.Qb3 Nb2 17.Qb2 e4 18.de4 (18.Nd4!? Bg6 19.Bd5=) 18...Be4–/+ 19.Be2 (19.Ra2 Rad8–/+) 19...Bf3 20.Bf3 Be5 21.Qb1 (21.Qc1 Ba1 22.Qa1 Rfd8–/+) 21...Bc3–+ (22.Ke2 Ba1 23.Qa1 Qc5–+) 0–1. BigSky (2705) – duckbreath (2545), ICC, 1998.

3.e3 e6 4.c4 a5 5.b5 c5 (5...Bd6 6.Nc3+=) 6.Nf3 Be7 (6...Bd6 7.Nc3+=) 7.Bb2 0–0 8.Be2 Nbd7 9.0–0 b6 10.d3 Bb7 11.Nbd2 Qc7 12.Qc2 Rad8 13.Rad1 Ne8 14.Rfe1 f5 (14...Bf6 15.cd5 ed5 16.e4=) 15.d4 (15.cd5!? ed5 16.e4+=) 15...Nd6+= 16.Rc1 Ne4 17.cd5 ed5 18.dc5 bc5 19.Nb3 Bd6 20.Nbd4 (20.g3!?=) 20...Rde8 21.g3 Qb6 22.Nc6 (22.Nb3 c4 23.Nbd2 A) 23...Qb5 24.Nc4 Rc8 25.Nd6 Rc2 26.Bb5 (worse is 26.Nb5 Rb2 27.Rc7 Ndc5+=; 26.Rc2? Qa4 27.Nd4 Nd6–+) 26...Rb2 27.Bd7 (27.Nb7?! Rb5 28.Rb1 Rb1 29.Rb1 Rb8+=) 27...Nd6 28.Rb1 Rb1 29.Rb1+/–; B) 23...Rc8 24.Ne4 fe4–/+) 22...Bc6–/+ 23.bc6 Ndf6 (better is 23...Qc6 24.Rb1 Bc7–/+) 24.Rb1+= Qc7 25.Bf6 Rf6 26.Qb3 (26.Red1 Kh8+/– (26...Qc6? 27.Bb5 Qc8 28.Be8 Qe8 29.Rd5+–)) 26...Kf8 (26...c4 27.Qb7 Nc3 28.Qc7 Bc7 29.Rb7 Rc6 30.Nd4 Ne2 31.Re2+=) 27.Qb7 (27.Qd5 Nc3 28.Qd2 Nb1 29.Rb1 h6+= (29...Qc6? 30.Ng5 Ke7 31.Bb5+–)) 27...Rb8 (27...Rc8 28.Ba6 Rb8 29.Qc7 Bc7 30.Rb8 Bb8 31.Bb7=) 28.Qb8 (28.Qa6!?+=) 28...Qb8+= 29.Rb8 Bb8 30.Rb1 Bc7 31.Rb7 Rc6 32.Bb5 (32.Bd3!?–/+) 32...Rb6 33.Rc7 Rb5 34.Ne5 c4 35.h3? (better is 35.f3 Rb1 36.Kg2–/+) 35...Rb1 36.Kg2 Rb2 37.Rf7 Kg8 38.Rf5 (38.Kg1 c3 39.Rc7 h6–+) 38...g6 39.Rf7 Ra2 (39...c3 40.a4–+) 40.h4 (40.Kg1 Ra3 41.Rc7 a4–+) 40...Ra3 (40...c3 41.Rc7 Rf2 42.Kh3–+) 41.Rc7 (41.g4 c3 42.Rc7 Ra2–+) 41...Ra2 42.Rc8 (42.Kg1 c3–+ (worse is 42...Rf2 43.g4–+)) 42...Kg7 43.Rc7 (43.Ng4 c3 44.Rc7 Kg8–+) 43...Kf6 44.Nc6 (44.Nd7 Kf5 45.g4 Kg4 46.Ne5 Kf5–+) 44...Rf2 45.Kh3 (45.Kg1 Rf3 46.g4 Re3 47.g5 Kf5–+) 45...Rf3 46.Na5 Rg3 47.Kh2 Re3 48.Rh7 c3 49.Rc7 (49.Rb7 d4 50.Rb6 Kg7 51.Rb7 Kh6–+) 49...d4 50.Nc6 (50.Nc4 Re2 51.Kh3–+) 50...d3 51.Nb4 Re2 (51...Re2 52.Kg1 Re1 53.Kg2 d2–+) 0–1. Druska,J (2370) – Hajek,Lu1 (2085), Banska Stiavnica SVK, Open Ch, 2012. (=1.a3 d5 2.b4 Nf6)

3.Nf3 e6 4.e3 a5 5.b5 (--> 1.b4 e6 2.a3 Nf6 3.Nf3 d5 4.e3 a5 5.b5).

3.Nf3 Bg4 4.d3 e6 5.Nbd2 a5 6.b5 Bd6 7.c4 0–0 8.Bb2 c6 9.Qa4 Nbd7 10.bc6 Nc5 11.Qc2 bc6 12.Ne5 Bh5 (12...Rc8!?+=) 13.Nc6+= Qb6 14.Bf6 Qc6 15.Bd4 Rfc8 16.e3 Na4 17.Rb1 e5 (17...Ba3? 18.Ra1 Qd6 19.Qa4+–) 18.Ba1 Ba3 19.Be2 (better is 19.Be5!? Bb4 20.f3=) 19...Be2+= 20.Ke2 e4 21.Rhd1 Bb4 22.de4 dc4 23.Kf1 c3 24.Nb3 Qa6 25.Kg1 Nb6 26.Rbc1 a4 27.Nd4 a3 28.Nf5 a2 29.Rd3 g6 30.Nd6 Bd6 31.Rd6 Qa4 32.Qe2 Rab8 33.Rd4 Qa3 34.Rdd1 Na4 35.g4 (35.Qg4!?+=) 35...Rb1!–/+ 36.Qc2 (36.Rb1 c2 Double attack (36...c2 Decoy)) 36...Qb3 37.Qb3 Rb3 38.Kf1 Rcb8 39.Ke2 Rb2! 40.Kf3 (40.Bb2 cb2 Double attack (40...Rb4 Decoy; 40...cb2 Passed pawn)) 40...Rb1 41.Rf1 (41.Ke2 Rc1 42.Rc1 Rb1 43.Rc3 Ra1–+) 41...Rc1 42.Rc1 Rb1 43.Rc3 Nc3 44.Bc3 a1Q 45.Ba1 Ra1 46.e5 Rg1 47.h3 Kf8 0–1. Coope,Derek William (1705) – Eilmes,Don P (2320), WC15/WS65 ICCF, 2006. (=1.a3 d5 2.b4 Nf6)

3.Nf3 g6 4.Bb2 Bg7 5.d3 0–0 6.Nbd2 a5 7.g3 (7.e4 ab4 8.ab4 Ra1 9.Qa1 Na6=) 7...Qd6 8.b5 Qb6 9.Rb1 Ng4 10.e3 Bb2 11.Rb2 Nd7 12.c4 Qd6 13.Qb3 Nc5 14.Qc2 dc4 15.Nc4 Qf6 16.Be2 Be6 17.Rb1 Bd5 18.Ncd2 b6 19.d4 Ne6 20.h3 Nh6 21.Kf1 Nf5 22.Kg2 Nd6 23.e4 Bb7 24.Qd3 Qg7 25.Qe3 Kh8 26.Kh2 Rad8 27.Rhc1 Bc8 28.g4 g5 29.Bf1 f6 30.Kg1 h5 31.gh5 Qh7 32.d5 Nf4 33.Nd4 Qh5 Increases the pressure on h3 34.Rc7 Bh3 35.Be2 Qh6 36.Bf3 Rf7 37.Nc6 Re8 38.Re7 Ree7 39.Ne7 Re7 40.Qb6 g4 41.Qd6 Rg7 42.Qf8 Kh7 (42...Kh7 43.Qg7 Kg7–+) 0–1. Coope,Derek William (1705) – Sergiev,Stefan (2260), 60yearsBdF–WS48, 2006. (=1.a3 d5 2.b4 Nf6)

3.h4 e6 4.e3 b5 (4...Bd6 5.Nf3+=) 5.h5 (5.Bb5!? Bd7 6.Be2+=) 5...Be7 (5...a6!?+=) 6.d3 1–0. Stummerer,Alfred – Scott, corr, 1988.

3.Bb2

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

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

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

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

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

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

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

3.Bb2 Bg4 (--> 1.b4 d5 2.Bb2 Bg4 3.a3 Nf6).

3.Bb2 g6 4.e3 Bg7 5.Nf3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 d5 5.a3).

3.d4

3.d4 (--> 1.b4 Nf6 2.d4 d5 3.a3).

3.d4 e6 4.Bb2 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 d5 4.d4).

3.e3 e5

4.Bb2 Bd6 5.c4 dc4 6.Bc4 =+.

4.Bb2 Bd6 5.Nf3 =+.

3.e3 Bf5

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

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

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

3.e3 Bg4

4.Be2= Bf5 5.Bb2 =.

4.Be2= h5 5.Bg4 (5.Nf3 Nbd7=) 5...hg4=+ 6.g3 (6.Bb2 Qd6 7.Bf6 Rh2 (< 7...gf6 8.Qg4 Nd7 9.Nf3+=) 8.Rh2 Qh2–/+) 6...e6 (6...e5 7.Bb2 Nbd7 8.h3–/+) 7.Qe2 (7.Bb2 Bd6–/+) 7...c5 (7...Nbd7 8.Bb2–/+) 8.c3 (8.bc5 Bc5 9.Qb5 Nbd7 10.Qb7 Rb8=+) 8...c4 (8...Nc6 9.h3–/+) 9.d3 cd3 10.Qd3 Nbd7 11.Ne2 (11.h3 Rc8–/+) 11...Ne5–+ 12.Qb5 Nfd7 (better is 12...Qd7 13.Qd7 Nfd7–+) 13.0–0?? (better is 13.Qb7 Bd6 14.Nf4–/+) 13...Nf3 14.Kg2 Rh2# 0–1. badboy1221 – hfknight, Live Game Caissa's Web, 2005.

4.Nf3 e6 5.c4 (5.h3 Bh5=) 5...c6 (5...a5 6.b5=+) 6.Bb2 dc4 7.Bc4 Nbd7 (7...b5 8.Be2=+) 8.Nc3 (8.0–0 Bd6=) 8...Nb6 (8...Ne5 9.d3=+) 9.Be2= Be7 10.Qb3 0–0 11.h3 Bf5 12.Nd4 (12.d3 a5 (12...Bd3? 13.Rd1+–) 13.e4 Bg6=) 12...Bg6=+ 13.h4 (13.0–0 a5=+) 13...h6 (13...e5 14.Nf3 Bd6 15.d4=+) 14.0–0–0 (better is 14.h5!? Bh7 15.0–0=+) 14...c5–/+ 15.Nc2 (15.bc5 Bc5 16.Nf3 Ng4–/+) 15...cb4 16.ab4 (16.Nb4 Ne4 17.Ne4 Be4–/+) 16...Bd3–+ 17.f3 Rc8 18.g4 Be2 19.Ne2 Qd5 (19...Nfd5!? 20.Kb1–+) 20.Qd5 (20.Ned4 Qe5–/+) 20...Nfd5 (20...ed5?! 21.Nc3=) 21.b5 (better is 21.Kb1!?–/+) 21...Nb4–+ 22.Nc3 Nd3 (23.Kb1 Nc4–+ (23...Nb2?! 24.Kb2 Nc4 25.Kb3=+)) 0–1. Sheldrick,Kevin – Trevor,Tao, ch Australian jr, 1992.

3.Nf3 Bf5

4.Bb2 e6 5.Nd4 Bg6 6.e3 Be7 7.Be2 0–0 (7...Nbd7 8.0–0=) 8.0–0 c5 9.bc5 Bc5 10.d3 Nc6 11.Nc6 bc6 12.Nd2 Bd6 13.Nf3 Bc7 (13...Bh5 14.Rb1=+) 14.Rb1 Bh5 (14...Rb8 15.Qd2=) 15.c4 Qd6 (15...Bf3 16.Bf3 Qd6 17.g3=) 16.Be5+= Qd7 (16...Qd8 17.Rb7 Bb6 18.Qb3+=) 17.Rb7+/– Rfc8 18.Bf6 gf6 19.Ne5 fe5 20.Bh5 Qd6 (20...Qe7!?+=) 21.Qf3+/– Kh8?? (better is 21...f5 22.Qg3 Kf8+/–) 22.Qf6 (22...Kg8 23.Bf7 Kf8 24.Bg6 Kg8 25.Qf7 Kh8 26.Qh7#) 1–0. b4_player (2200) – chimchim (2055), GameColony.com, 2003.

4.d3 e6 5.Bb2 c5 6.bc5 Bc5 7.e3 Nc6 8.Nbd2 0–0 9.Be2 Bd6 (9...d4 10.ed4 Nd4 11.Rb1+=) 10.c4 Bg6 11.0–0 Rc8 12.Rc1 Bb8 13.c5 e5 14.Qc2 (14.Nh4 Qe7=) 14...Qe7 15.e4 Rfd8 16.Nh4 de4 17.Ng6 hg6 18.de4 Nd4 19.Bd4 ed4 20.Bd3 Bf4 21.Rfd1 (21.g3 Bd2 22.Qd2 Nd7–/+ (worse is 22...Ne4 23.Qe2+/–)) 21...Nd7 22.g3 (22.Qb1 Ne5–/+) 22...Rc5–+ 23.Qb2 Bd2 (23...Rc1 24.Qc1 Ne5 25.gf4 Nd3 26.Qc2–+) 24.Rd2–/+ Rc1 25.Qc1 Ne5 26.Be2 d3 27.Bd1 b5 28.Qc3 Qd6 29.Be2? (better is 29.Rb2 a6 30.a4–+) 29...Qd4 (29...Qf6 30.Qc7 de2 31.Rd8 (31.Qd8?? Qd8 32.Rd8 Kh7–+) 31...Kh7 32.Rh8 Kh8 33.Qc8 Kh7 34.Qh3 Kg8 35.Qc8 Kh7 36.Qh3 Kg8 37.Qc8 Kh7=) 30.Qc7 (30.Qc1 Qe4 (30...de2?! 31.Rd4 Nf3 32.Kg2 Nd4 33.Qd2–/+) 31.Bd1 Nc4–+) 30...Rd7 (30...de2!? 31.Rd4 e1Q 32.Kg2–+) 31.Qb8 Kh7 32.Qb5 de2 33.Re2 Qd3 (33...Qd1 34.Kg2 Rd3 35.Qe5 Qe2 36.Qf4–+) 34.Qb2 (34.Qd3 Rd3 35.Ra2–+) 34...Nc4 35.Qa2 (35.Qc2 Qf3–+) 35...Qd1 (better is 35...Qf3 36.Qc2–+) 36.Kg2 Nd2 37.Re3 (37.Rd2 Qd2 38.Qc4–+) 37...Qf1# 0–1. Lackner,Richard – Stanec,Nikolaus (2475), Oberwart op, 2000.

4.g3 a5 5.b5 e6 (5...c5 6.Bb2 Qb6 7.e3 Nbd7 8.Nh4 Be6 9.Nc3 a4 10.Nf3 d4 11.ed4=) 6.d4 (6.Nh4 Bg4 7.h3 Bh5 8.Bg2 Bd6 9.Bb2 0–0 10.0–0 c6 11.Nc3+=; 6.Bg2 c6 7.Nh4 Be4 8.f3 Bg6 9.bc6 Nc6 10.Ng6 hg6 11.Nc3+=; 6.Bb2 Bc5 7.Bg2 0–0 8.Nh4 Bg4 9.c4 c6 10.Qc2 Ba7 11.h3+=) 6...Bd6 7.Nh4 Bg4 8.h3 Bh5 9.Bg2 c6 10.Nc3 0–0 11.bc6 +=.

4.g3 e6+=

5.Bb2 A) 5...c5 6.Nh4 (6.b5 a6 7.Nh4 Bg4 8.ba6 Ra6 9.h3 Bh5 10.Bg2 Nc6 11.Nc3+=) 6...Bg4 7.h3 Bh5 8.g4 Bg6 9.Ng6 hg6 10.bc5 Ng4 11.e3=; B) 5...Nbd7 6.Bg2 (6.Nh4 Bg4 7.h3 Bh5 8.g4 Ng8 9.Nf3 Bg6 10.Bg2 Ngf6 11.Nc3+=) 6...a5 7.b5 Bc5 8.Nh4 Bg4 9.h3 Bh5 10.c4 0–0 11.d4=; C) 5...a5 6.b5 Bc5 7.Bg2 0–0 8.Nh4 Bg4 9.d4 Be7 10.h3 Bh5 11.c4+=.

5.Bg2 a5 6.b5 Bd6 7.Nh4 Bg4 8.c4 c6 9.h3 Bh5 10.g4 Ne4 11.Nf3 =.

5.Bg2 c5 6.Nh4+= (6.bc5 Bc5 7.d4 Bb6 8.Nh4 Bg4 9.h3 Bh5 10.Bf4 Nc6 11.c3+=; 6.c3 Bd6 7.bc5 Bc5 8.d4 Bd6 9.Nh4 Be4 10.f3 Bg6 11.Bg5=) 6...cb4 7.Nf5 ef5 8.Bb2 Nc6 9.ab4 Bb4 10.Bf6 Qf6 11.c3 =.

5.Bg2 Bd6 6.Nh4 (6.0–0 0–0 7.Nh4 Bg4 8.h3 Bh5 9.c4 Nc6 10.d3 dc4 11.dc4=; 6.Bb2 0–0 7.Nh4 Bg4 8.c4 a5 9.c5 Be7 10.0–0 Na6 11.h3+=; 6.d3 a5 7.b5 0–0 8.Nh4 Bg4 9.h3 Bh5 10.c4 c6 11.g4+=; 6.Nc3 0–0 7.Nb5 Be7 8.Nbd4 Bg6 9.Ne5 Bh5 10.0–0 a5 11.b5+=) 6...Bg4 7.c4 0–0 8.d4 a5 9.b5 c5 10.h3 Bh5 11.Bb2 =.

5.Bg2 Nbd7 6.0–0 (6.Nh4 Bg4 7.h3 Bh5 8.d3 c5 9.Qd2 Rc8 10.Bb2 Nb6 11.g4+=; 6.Bb2 c5 7.Nh4 Be4 8.f3 Bg6 9.bc5 Bc5 10.Ng6 hg6 11.e3+=; 6.Nc3 a5 7.b5 Bd6 8.Nh4 Bg4 9.h3 Bh5 10.g4 Ne4 11.Ne4+=; 6.d3 c5 7.c3 Bd6 8.Nh4 Bg4 9.h3 Bh5 10.g4 Ng8 11.Nf5=) 6...h5 (6...c5 7.Nh4+= cb4 8.Nf5 ef5 9.Bb2 Qb6 10.ab4 Bb4 11.Nc3+=) 7.d3= Be7 (7...c5 8.c3= Be7 9.Nbd2 0–0 10.Re1 Qc7 11.e4=) 8.Nbd2 (8.c4 c6= 9.Nh4 Bh7 10.Nd2 a5 11.ba5=) 8...Ng4 (8...c6 9.Re1= (9.Qe1 a5 10.e4 de4 11.de4=) 9...a5 10.ba5 Qa5 11.Bb2=; 8...c5 9.bc5 Nc5 10.c4 Rc8 11.Bb2+=) 9.e4 (9.Bb2 Bf6 10.Bf6 Qf6 11.h3+=) 9...de4 10.de4 Bg6 (10...Bf6 11.Rb1 Bg6 12.Qe2+=) 11.Bb2= Bf6 12.Bf6 Qf6 13.Qe2 (13.h3 Nge5+=) 13...Qc3 (13...0–0–0 14.Rad1=) 14.Qb5 (14.h3 Ngf6+=) 14...0–0–0= 15.a4 (15.Qa4 Kb8 16.Rad1 Nde5=) 15...c6 (15...h4!?–/+) 16.Qc4= Qc4 17.Nc4 Nb6 (17...Ndf6 18.e5 Nd5 19.b5=) 18.Nce5 (18.Nb6 ab6 19.h3 Nf6+=) 18...Ne5 (18...Rh6 19.Ng6 Rg6 20.h3+–) 19.Ne5+= Rh6 (19...Rd2 20.f4+=) 20.f4 Rd2 (20...Nd7 21.Nd7 Rd7 22.Rad1+=) 21.Ng6 (21.Rf2!? Rf2 22.Kf2+/–) 21...Rg6= (worse is 21...fg6 22.Bh3 g5 23.fg5+/–) 22.f5 (22.Rf2 Rd4 23.a5 Nc4=) 22...ef5 (22...Rf6 23.fe6 fe6 24.Rf6 gf6 25.Rf1=) 23.Rf5+= h4 24.Ra3 (24.Rf7!? hg3 25.h4+=) 24...hg3+= 25.hg3 f6 26.Rf2 Rd1 27.Kh2 (27.Rf1 Rd4 28.a5 Nd7+=) 27...Nc4 (27...Re1!?–/+) 28.Rd3= Rd3 (28...Rb1 29.Bh3 Kc7 30.Rd7 Kb6 31.a5 Ka6 32.Rd4 Rb4 33.Bf1 Ka5 34.Rc4 (34.Bc4? b5–+) 34...Rc4 35.Bc4 Rh6 36.Kg2+=) 29.cd3 Ne5 30.Rd2 Rh6 (30...b5 31.ab5 Rh6 32.Kg1 cb5 33.d4=) 31.Kg1 Kc7 32.d4 Nc4 33.Rf2 (33.Rc2 Ne3 34.Rc3 Ng2 35.Kg2 Kd6+=) 33...Kd6 34.e5 (better is 34.Rc2!? Ne3 35.Rc3 Ng2 36.Kg2=) 34...fe5–/+ 35.de5 Ne5 (35...Ke5?! 36.Rf7 b5 37.ab5 cb5 38.Ra7+=) 36.b5 (36.Rd2 Ke6–/+) 36...cb5 (36...a6 37.bc6 bc6 38.Rf8–/+) 37.ab5 (37.Rd2 Ke6 38.ab5 Rg6+=) 37...a6 (37...Kc5 38.Re2 Rh5 39.Bb7 Kb5 40.Rb2 Kc5 41.Rc2 Kb4 42.Rc7–/+) 38.ba6 ba6 39.Ra2 Kc7 40.Ra5 Nf7 41.Bf1 Kb7 42.Bc4 Rf6 43.Kg2 (43.g4 Rf4 44.Be2 Rb4–/+) 43...Nh6+= 44.Rg5 g6 (44...Nf5 45.Bd3 Ne3 46.Kg1+=) 45.g4 (45.Bd3 Nf5=) 45...Rf4 ½–½. Rennie,J (2050) – Partington,A (2060), Varsity Oxford–Cambridge, London ENG, 2006. (=1.a3 d5 2.b4 Nf6 3.Nf3 Bf5)

5.Nh4 Bg4 6.d4 (6.Bg2 Bd6 7.c4 0–0 8.h3 Bh5 9.g4 Ne4 10.Nf3 Bg6 11.d3=; 6.h3 Bh5 7.Bg2 Bd6 8.g4 Nfd7 9.Nf3 Bg6 10.Nc3 a5 11.b5+=; 6.Bb2 a5 7.h3 Bh5 8.b5 Bc5 9.Bg2 c6 10.d4 Bd6 11.Nc3+=) 6...Bd6 7.c4 a5 8.c5 Be7 9.b5 b6 10.c6 0–0 11.f3 =.

2.Ba3 e6

3.Nc3 a5!? 4.Bb2 ab4 –/+.

3.Nc3 Nc6 4.Na4 Bb4 5.Rb1?? a5 6.c3?? Ba3–+ 7.e4 de4 8.Bb5 Qd5 9.h4 Qa2 10.Ra1 Qd5 11.Qc2 e5 12.Ra3 e3 13.Rb3 Qg2 14.Kd1 Qh1 15.Ke2 Qg1 16.Rb1 Qg4 17.Ke1 Qh4 18.de3 Bg4 19.Nc5 a4! 20.Nb7 a3 21.Bc6 Ke7 22.Ra1 Qh1 23.Bh1+– g6 24.Rb1 Bf5+/– 25.Qb3?? a2?? 26.Rb2?? a1Q–+ 27.Ke2 Qh1 28.Qb4 Kf6 29.Rd2 Bg4! 30.Kd3 Rd8! 31.Kc4 Rd2 32.Kc5 Ne7 33.Kb5 Qc6 34.Ka5 Rd5 35.Qb5 Ra8 36.Kb4 Rb5# (36...Qb5#) 0–1. kartboy – Mastarboy, VOGChess (year?).

3.Nc3 Qf6 4.e3 Bd6 (4...c6 5.Nf3=) 5.Qf3 (5.Nb5 e5=) 5...Qf3 (5...a6 6.e4+=) 6.Nf3 c6 7.Bd3 (7.e4 a5 8.Rb1 Be7=) 7...Nf6 8.Nd4 0–0 (better is 8...a5 9.Nce2 ab4–/+) 9.h4? (better is 9.Nb1!?+=) 9...a5–+ 10.Bb2 (10.Nce2 ab4 11.Bb2 Nbd7–+) 10...ab4 11.Nce2 Nbd7 12.h5 (12.Nc1 Ne5–+) 12...h6 13.Nf4 (13.Nc1 Ne5–+) 13...Nc5 (13...e5 14.Nf5 Bc5 15.Nh3–+) 14.Nfe6? (14.Nf3–+) 14...Nd3 (14...Nd3 15.cd3 fe6–+; 14...Ne6?! 15.Nf5 Ne8 16.Nd6 Nd6 17.a3 ba3 18.Ra3–+) 0–1. Seronius – Wall,Bill, chess.com, 2008.

3.d4 Nf6 4.f3 Bd6–/+ 5.h4 (5.e3 Qe7–/+) 5...Nc6 6.h5 (6.c3!?–/+) 6...Bg3–+ 7.Kd2 Nd4 8.e3 Nf5 9.b5 (9.h6 Nh6 10.Bb2 Nf5–+) 9...Bd7 (9...Bf2 10.Bd3 Be3 11.Ke1–+) 10.Nh3? (10.Bd3 d4 11.ed4 Nd5–+) 10...Nh5 11.Nc3 (11.Bb2 Nf6–+) 11...Qf6 12.b6 (12.Bb2–+) 12...ab6 (better is 12...Ne3 13.Qb1 Qd4 14.Bd3 Nc4 15.Kd1 Qc3 16.Bc4 Qc4 17.Qb4 Qb4 18.Bb4–+) 13.f4 (13.Bb2 Qh6 14.f4–+) 13...Ra3 14.Ne2 0–0 (14...Ne3 15.Qb1 Be1 16.Ke1 Qa1 17.Qa1 Nc2 18.Kd1 Na1 19.Nf2 Ba4 20.Kc1 Ra2 21.Kb1–+) 15.Qc1 (15.c3 Qe7 16.Nd4 Qc5–+) 15...Re3 16.c3 c5 (16...Bb5 17.Qb2 Rd3 18.Kc1–+) 17.a4 (17.Qb2 Nd6 18.Ng3 Rg3–+) 17...Rd8 (17...c4 18.Ra3–+) 18.Ra3 d4 19.c4 (19.cd4 cd4 20.Rd3 Ba4–+) 19...e5 (better is 19...Nd6 20.Ng3 Ng3 21.Re3 de3 22.Ke3 Nh1 23.Ke2–+) 20.Re3 (20.Rg1–+) 20...de3 21.Kc2 Nd4 22.Nd4 ed4 23.Be2 Bf5 24.Kb3 d3 25.Bh5 d2 26.Qb2 Qb2 27.Kb2 d1R! 28.Bd1 Rd2 29.Kc3 Bh4 30.Ng1 Bf6 31.Kb3 Rd1 32.a5 ba5 33.Ka4 Ra1 34.Kb5–+ Bd7 35.Kc5 Be7 36.Kb6 Bc6 37.Kc7 Bg2 38.Rh5 Rg1 39.Ra5 e2 40.Ra8 Bf8 41.f5 e1Q 42.c5 Qe5 43.Kb6 Qc5# 0–1. karlsdad – pieeater, ChessWorld.net, 2012.

3.e3 a6 4.Be2 b5 5.Bg4 f5 6.Bh5= g6 7.Bf3 Nf6 8.c3 Bg7 9.Nh3 0–0 10.Ng5 h6 11.Ne6? Be6–+ 12.d3 Ra7 13.Nd2 c6 14.c4 dc4 15.dc4 Kh8 16.Bb2 Rd7 17.cb5 ab5 18.a4 Kh7 19.ab5 cb5 20.h4 Bd5 21.h5 g5 22.Qc2 Bf3 23.Nf3 Nc6?? 24.Qc6+/– Rd5 25.Ng5?? hg5–/+ 26.h6 Bh8 27.Qb7 Qd7 28.Qa6 Rd6 29.Qa5 Rd8 30.f4?? Rd1 31.Ke2 Qd2 32.Kf3 g4 33.Kg3 Qe3 34.Kh2 g3 35.Kh3 Qf4 36.Rhd1 Qg4# 0–1. jko – rak (1875), net–chess.com, 2009.

3.b5 Ba3

4.Na3 b6 5.c4 Bb7 6.cd5 Bd5 7.e3 Nf6 8.Bc4?? c6 9.Bd5 Qd5–/+ 10.Nf3 0–0 11.d3 cb5 12.0–0 Nc6 13.e4 Qd7 14.Nc2 Rac8 (15.Qe2 b4–/+; 14...Rfd8 15.e5 Nd5 16.d4–/+) 0–1. pinecrest1981 – bueno, Live Game Caissa's Web, 2005.

4.Na3 c6 5.e4 e5 6.ed5 cd5 7.c4 Nf6 8.c5 Qe7 9.Qc2 a6 10.b6 Bd7 11.Be2 Bc6 (11...Nc6 12.Nf3–/+) 12.Nb1? (12.Nf3!?–/+) 12...Nbd7 13.Nh3 Nc5 14.Ng5 Nce4 (14...Nfd7!? 15.Nh3–+) 15.Ne4 de4 16.0–0 0–0 17.d3 Rad8 18.de4 Be4 19.Qa4 Rd4 20.Qa3 Qa3 21.Na3 Rb4 22.Rfe1 Rc8 23.f3 Bd5 24.Bf1 e4 25.fe4 Be4 26.h3 Rc3 27.Rad1 g6 28.Rd8 Kg7 29.Rb8 Ra3 0–1. pinecrest1981 – LOBOKNIGHT, Live Game Caissa's Web, 2004.

2.Ba3 Nf6

3.b5 Bd7 4.e3 a6 5.ba6 Na6 6.Ba6 Ra6 7.Ne2 g6 (7...Qa8!? 8.Bb2 b5–/+) 8.0–0 (8.Bb2 Bf5=+) 8...Bg7 (8...Ra4 9.Bc5=) 9.d4 (9.Bb2!?=) 9...Ne4 10.h3 b6 11.Qd3 Ra7 12.c4 dc4?? 13.Qe4+– Bf5 14.Qc6 Kf8? 15.Nec3 Bd3 16.Nd5 Bf1 17.Kf1 Kg8 18.Ne7 Kf8 19.Ng6 Kg8 20.Nh8 Kh8 21.Qc4 Qf6 22.Bb2 Bh6 23.Nc3 Be3 24.f3 Qh4 25.Ne4 Kg8 26.d5 Kf8 27.d6 1–0. pinecrest1981 – janis66a, Live Game Caissa's Web, 2004.

3.Nc3 e5 4.Qc1 d4 5.Nd1 b6 6.Nh3 Bb7 7.Nb2 (7.e3 Bd6–/+) 7...Be7 8.Nd3 Bd6 9.e3 0–0 10.Be2?? (Better is 10.b5–/+) 10...Bg2–+ 11.Rg1 Bh3 12.Rg3 Bf5 13.Nb2 Nc6 14.c3 e4 15.c4 (15.Rg5 Be6 16.ed4 a5–+) 15...Bg3 16.fg3 d3 17.Bd1 Ne5 18.b5 Re8 19.Qc3 Qd7 20.Qb4 Bh3 21.Ba4 Qf5 22.Qf8 Rf8 23.0–0–0 Nfg4 24.Bf8 Kf8 25.Kb1 Nh2 26.a3 Bg4 27.Rc1 Nef3 28.Nd1 Nd2 29.Kb2 Bd1 30.Rd1 Nc4 31.Kb3 Qd5 32.Rc1 Ne3 33.Kb2 Qd4 34.Rc3 Nd5 35.Ka2 Nc3 36.Kb3 Na4 0–1. Carpenter Ant – fimetic, ChessWorld.net server game, 2002.

3.d3 e6 4.b5 Ba3 5.Na3 Bd7 (5...Qd6 6.Qc1–/+) 6.Nf3 c6 7.bc6 Nc6 8.Nd2 Nd4 (8...Qa5 9.Qc1–/+) 9.e3 Nb5 10.Qc1 0–0 11.Nb5 Bb5 12.a4 Ba6 13.Nb3 b6 14.a5 Qd6 15.Nd2 Rfc8 16.Be2 ba5 17.0–0 e5 18.c3 e4 19.Ra5 ed3 20.Bf3=+ Bc4 21.Nc4 dc4 22.Ba8+= Ra8 23.Qd2 Ne4 24.Qa2? d2 25.Ra7?? Ra7–+ 26.Qa7 h6 27.Qa8+– Kh7 28.Qe4 Kg8 29.Rd1 1–0. pinecrest1981 – toppers, Live Game Caissa's Web, 2004.

3.d4 e6 4.b5 Ne4 5.Bf8= Rf8 6.Nf3 Nd7 7.e3 Ndf6 8.Be2 b6 9.a4 Ng4 10.0–0 f5 11.Ne5 h5 12.Bg4 hg4= 13.f3 Ng3?? 14.hg3+– Rh8 15.fg4 Ke7 16.Nc6 Kd7 17.Nd8 Kd8 18.gf5 ef5 19.Nc3 Be6 20.Qf3 Kd7 21.Nd5 Raf8 22.Nb4 Rf6 23.Qc6 Ke7 24.Qc7 Kf8 25.Qd8 (25...Kf7 26.Qh8+–; better is 25.Qb8 Kf7 26.Qh8 Rh6+–) 1–0. QueenAmyitis – aliwood, internet, 2005.

3.e3 Nbd7 4.Bb5 =+.

3.e3 e6 4.Nc3 b5 5.Nb5 Bd6 6.g4 (6…Be5 7.d4+/–; 6.Nd6!? Qd6 7.Nf3+/–) 1–0. wonderhorse – dimiternikolov, net–chess.com, 2006.

3.b5 Nbd7

4.Nf3 c5 =+.

4.h3 Nb6 5.e3 Bf5 6.Nf3 e6 7.Bf8 Rf8 8.Nh4 h6 9.Nf5+= ef5 10.Qf3 Qd7 11.Na3 0–0–0 12.Bd3 Ne4 13.Be4 de4 14.Qg3?? g6 15.0–0 Qd2–+ 16.Rfd1?? Qc3 17.Rd8 Rd8 18.Rf1 Qa3 19.h4 Qa2 20.Qe5 Qc2 21.Qg7 Qc5 22.Qf7 Qb5 23.Qg6 Qd7 24.Qh6 Nd5 25.h5 Qd6 26.Qg5 Ne7 27.h6 Rg8 28.Qh5?? Rh8 29.h7 Qd7 30.Ra1 Kb8 31.Qf7 Qd8 32.Qa2 a6 33.Qb2 Ka8 34.Rb1 Qb8 35.Qg7 Re8 36.g3? Nc6 37.Kg2 Ne5 38.Rh1= Ng4?? 39.h8Q+– Rh8 40.Rh8 Qh8 41.Qh8 Ka7 42.Qh5 b5 43.Qf5 Nh6 44.Qe4 a5 45.Qh7 Ng4 46.Qc7 Ka6 47.Qc6 Ka7 48.Qd7 Kb6 49.Qg4 a4 50.Qd4 Ka5 51.Qc3 b4 52.Qc5 Ka6 53.Qb4 (53...Ka7 54.g4+–) 1–0. pinecrest1981 – Matrix21, Live Game Caissa's Web, 2005.

4.h3 e5 5.Bf8 Nf8 6.e3 –/+.

4.h3 g6 5.e3 Bg7 6.Nc3 (6.d4 0–0+=) 6...0–0 7.Nf3 Re8 8.Be2 e5 9.0–0 c5 (9...a6 10.ba6 b6 11.Bb2+=) 10.bc6 bc6 11.Rb1 c5 12.Nb5 d4 (12...e4!? 13.Ne1 Ba6+=) 13.Nd6= Re6 (better is 13...Re7!?=) 14.Nf7!+/– (14.Nc8?! Rc8 15.Bc4 Re7=) 14...Kf7 (14...Qa5 15.N7g5 Rb6 16.Bc4 Kf8 17.Bb2+/–) 15.Ng5 Ke7 16.Ne6 Ke6 17.Bc4 Ke7 18.ed4 Ke8? (better is 18...Qc7 19.dc5 Kd8+/–) 19.de5+– (19.dc5?! Qa5 20.Qf3 e4+–; 19.Bc5?! Nc5 20.dc5 Kf8+–) 19...Ne5 20.Re1 Qc7 (20...Qd4 21.Bb5 Kf8 22.Bb2+–) 21.f4 Ne4 (21...Nfd7 22.fe5 Rb8+–) 22.Re4 Bb7 (22...Bf5 23.Re3 Kf8 24.fe5 Be5 25.Qf3+–) 23.Re1 (23.Re3 Rd8 24.fe5 a6+–) 23...Qc6 (23...Kd8 24.fe5 Be5+–) 24.Bb5 1–0. marre – oppo, internet, 2010.

2.Na3 e5

3.Bb2 Bb4 4.Be5 f6 =+.

3.Bb2 Nd7 –/+.

3.b5 Bc5 4.e3 –/+.

3.b5 Bd7 4.e3 Nf6 5.Bb2 Bb4 6.Qc1 e4 7.Bd4 0–0 8.c3 Bd6 9.Nc2 c5 10.bc6 bc6 Black creates threats along the open b–file 11.Rb1 c5 12.Bf6 Qf6 13.Ne2 Qh4 14.g3 Qg5 15.Bg2 Bc6 16.Qb2 Nd7 17.Na3 Rab8 18.Qc1 f5 19.h4 Qh5 20.Qd1 Ne5 21.Nf4 Rb1 22.Qb1 Nf3 23.Bf3 Qf3 24.0–0 Bf4 25.ef4 Re8 26.Re1–/+ c4 27.Re3 Qh5 28.Nc2 Qg6 29.Nd4 Qf6 30.Qb4 Ba8 31.a4 Qg6 32.a5 Qh5 33.Qb5= Rd8 34.Ne6 a6 35.Qa6 Rb8?? 36.Nd4 Kh8 37.Re1 Re8 38.Qb5 Rd8 39.Qb6 Re8 40.Qd6 h6 41.Qd7 Rf8 42.a6 Qg6 43.a7 Qh5? 44.Rb1+– Kh7 45.Rb8 Qd1 46.Kg2 Rf6 47.Ra8 Qa1 48.Rg8! Kg8 49.Qd5 Rf7 50.a8Q Qa8 51.Qa8 Rf8 52.Qd5 Kh7 53.Nf5 Rf6 54.Ne7 Rf8 55.Qe4 Kh8 56.Ng6 Kg8 57.Qc4 Rf7 58.d4 Kh7 59.Qf7 h5 60.Ne7 Kh6 61.Qg6# 1–0. NN – SuperConstellation4, 1988.

3.c3 Nf6=+.

3.b5 Nf6

4.Bb2 Bd6 5.e3 0–0 6.Nf3 Qe7 7.Nb1 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Bg4 11.Be2 Nbd7 12.h3 Bf5 13.d3 Ra8 14.Nbd2 c6 15.bc6 bc6 16.c4 Bb4 17.Bb2 dc4 18.dc4 Nc5 19.0–0 Rd8 20.Qc1 Nd3 21.Qa1 Nb2 22.Qb2 Bd6 23.Ra1 Rb8 24.Qc1 Nd7 25.Bd1 Nc5 26.Bc2 Bc2 27.Qc2 e4 28.Nd4 Qe5 29.g3 Nd3 30.Qa4 Nf2 31.Kf2 Qg3 32.Ke2 Rb2 33.Nc2 Rc2 34.Qc2 Qh2 35.Kd1 Qh1 36.Ke2 Qa1 37.Qe4 Qa8 38.Qd4 Bf8 39.e4 Qe8 40.Nf3 Qe6 41.h4 f6 42.Kd2 Bd6 43.Qd3 Bf4 44.Kc2 Qe7 45.Kd1 h5 46.Ke2 Be5 47.Kd1 Kh7 48.Qe3 Qd7 49.Kc2 Qg4 50.c5 Qg2 51.Kc1 Qb2 52.Kd1 Qb1 53.Kd2 Qb4 54.Kd1 Bc3 55.Qd3 Qc5 56.e5 Kh6 57.e6 Bb4 58.Nd4 g6 59.Qe4 Qd6 60.Kc2 f5 61.Qe3 Kg7 62.Nf3 Qc5 63.Qc5 Bc5 64.Ne5 Bd6 65.Nc6 Kf6 66.Nd4 Bg3 67.Kd2 Bh4 68.Ke3 Bg5 69.Kf3 Ke5 70.Ne2 Ke6 71.Nd4 Kd5 0–1. bambinik – queenmum, Internet, 2002.

4.e3 e4 5.c4 Bg4 6.Qa4 Ba3 7.Ba3= Nbd7 8.h3 Nb6=+ 9.Qb3 Be6 10.c5 Nc8 11.d4= c6 12.Ne2 0–0 13.Nf4 Bd7 14.Be2 Ne7 15.0–0 cb5= 16.Bb2 b6 17.Rac1 Rb8 18.Rc2 a6 19.a3 h6 20.Rfc1 Rc8 21.Ba1 Rc7 22.Qb2 bc5 23.dc5= Bc6 24.Bd1 d4 25.ed4 Ned5 26.Ne2 e3 27.f3 Qd7 28.Ng3 Nf4 29.Be2 N6d5 30.Ne4 Qe7 31.Re1? Qh4–+ 32.Qc1 f5 33.Nd6?? Qf2 34.Kh1 Qg2# 0–1. NN – SuperForte 5 Mhz, 1993.

2.a4 c5

3.bc5= e5!? =.

3.bc5 e6 4.d4 Nf6 5.Nf3 Be7 6.e3 0–0 7.Bd3 Nc6 8.0–0 e5 9.Ne5 Nb4 (better is 9...Ne5!? 10.de5 Ng4+/–) 10.Nc3+– b6 11.cb6 Qb6 12.Ba3 Bd6 (12...Rb8+–) 13.Nb5 Be5 (13...Be7+–) 14.de5 (< 14.Bb4 Bb8 15.Bf8 Kf8+–) 14...Ng4 (14...Bg4 15.Be2 (15.Bb4?! Bd1 16.Bf8 Kf8+/–; 15.ef6?! Bd1 16.Bb4 Bh5+/–) 15...Nc2 16.Qc2+–) 15.Bb4 Re8 16.Bd6 a6 (16...Ne5 17.Bh7! Kh7 18.Qh5 Kg8 19.Be5+–) 17.Nc7 +–. b4_player (2140) – puff, GameColony.com, 2004.

3.e3 cb4 4.Bb5 Bd7 5.Bb2 =+.

3.e3 e5 4.Bb5 Nc6 5.bc5 Bf5 (5...Bc5 6.d4 Bd6 7.Ba3=) 6.Bc6 (6.Bb2 Qg5 7.Nf3 Qg6+/–) 6...bc6= 7.Ba3 (7.Bb2 Qb8 8.Ba3 Be7=) 7...Qa5 8.c3 Bc5 9.Qb3 (9.Bc5 Qc5 10.Nf3 e4=) 9...Ba3–/+ 10.Ra3 Qc7 11.d4?? ed4 12.cd4? Nf6 13.f3?? Rb8–+ 14.Qa2 Rb1 15.Kf2 Rb8 16.e4 de4 17.fe4 Ne4 18.Kf1 Qf4 19.Ke2 Nd6 20.Re3 Be6 21.g3 Qd4 22.Re6 Kd7 23.Rd6 Qd6 24.Qf7 Qe7 25.Qe7 Ke7 26.Kf2 Rb1 27.h4 Rf8 28.Kg2 Ra1 29.Nh3 Ra4 30.Re1 Kd7 31.Rd1 Kc7 32.Ng5 Ra2 33.Kh3 Re8 34.Nh7 Rd8 35.Re1 Rad2 36.Re7 R2d7 37.Re1 a5 38.Ng5 Ra8 39.Ne6 Kd6 40.Nd4 a4 41.Nb5 cb5 42.Rd1 Kc6 43.Rc1 Kb6 44.h5 a3 45.g4 a2 46.Ra1 b4 47.g5 b3 48.h6 gh6 49.gh6 b2 50.Rf1 a1Q 51.Rf6 Kc7 52.Rf3 b1Q 53.Rc3 Kd8 54.h7 Qh7 0–1. coral – monaco3, Live Game Caissa's Web, 2004.

3.f4 b5?? 4.e4 (4.bc5 b4+=) 4...de4= 5.d4?? (5.Bb5 Bd7 6.bc5 Nf6=) 5...Nf6?? (5...cb4 6.Bb5 Bd7 7.Ne2–+) 6.Nf3?? (6.Bb5!? Bd7 7.bc5+=) 6...e6?? (better is 6...ba4 7.Ne5 cb4 (7...Qd4?! 8.Qd4 cd4 9.Ra4–/+) 8.Ra4 e6 9.Bb5 Bd7 10.Nd7 Nbd7–+ (10...Nfd7?! 11.Nd2–/+)) 7.Nc3?? (7.Bb5 Nbd7 8.bc5 ef3 9.Qf3 Rb8+=) 7...g6 (better is 7...cb4!? 8.Bb5 Bd7 9.Ne4 Ne4 10.0–0 Bb5 11.ab5–+) 8.d5?? (8.Bb5 Bd7 9.dc5 Bb5 10.Nb5 Qd1 (worse is 10...ef3 11.Qf3 Nd5 12.Bb2+–) 11.Kd1 ef3 12.Nc7 Kd7 13.Na8 fg2+=) 8...Bg7?? (better is 8...a6 9.Ng5 ed5–+) 9.Nd2?? (better is 9.Bb5 Kf8 10.Be3 ef3 11.Bc5 Kg8 12.de6 Qd1 13.Rd1 (13.Kd1?? fg2 14.ef7 Kf7–+) 13...fe6 14.gf3–/+) 9...0–0 10.Be2 (10.d6 Nd5 11.Nd5 ed5–+ (11...Ba1 12.Ne7 Kh8 13.Ne4+=)) 10...Re8 (10...cb4!? 11.de6 bc3 12.Nb3 Be6 13.Qd8 Rd8 14.ab5 Bb3 15.cb3–+) 11.0–0 (11.de6 Be6 12.Bb2–+) 11...Nfd7 (better is 11...cb4 12.Nb5 a6–+) 12.Nc4?? (better is 12.Nde4 cb4 13.Be3–+) 12...Ne5 (better is 12...bc4 13.de6 Re6 14.Bc4 Bc3 15.Be6 fe6–+) 13.Ne3?? (better is 13.Ne5 cb4 14.de6 Be6 15.Ne4 Qb6 16.Kh1+–) 13...f5 (better is 13...Nc4 14.Nb5 Ne3 15.Be3 Ba1 (15...ed5?! 16.bc5 Ba1 17.Qa1=) 16.Qa1 a6 17.de6 ab5 18.ef7 Kf7 19.Bc5 Ra4–/+) 14.Nf5?? (better is 14.Bb5 Ng4 A) 15.Be8 Bc3 (15...Qe8 16.Ng4 Bc3 17.Ra3+=) 16.Ng4 Ba1–+ (16...Qe8 17.Ra3 Bg7 18.Ne3+=; 16...fg4 17.Ra3 cb4 18.Rc3 bc3 19.Qd4 Qe8 20.Qc3=); B) 15.Ng4 Bc3 B1) 16.Be8 Ba1 (worse is 16...Qe8 17.Ra3 Bg7 18.Ne3+=) 17.Be3 Bb2–/+ (17...Qe8 18.Nh6 Kg7 19.Qa1 e5 20.fe5+–; 17...fg4?! 18.Bf7 Kg7 19.Be6=); B2) 16.de6 Qd1 17.Rd1 Ba1 18.Be8 Be6 19.Rd6 fg4 20.Re6+/–) 14...ef5–+ 15.Kh1 (15.fe5 Be5 16.Nb5 Ba1 17.bc5–+) 15...Qf6 (better is 15...Ng4 16.Bg4 fg4 17.Nb5 Ba1 18.bc5–+) 16.Bh5?? (better is 16.fe5 Qe5 17.Nb5 Qa1 18.Nc7–/+) 16...Nf7–+ 17.Nb5 Re7 (better is 17...Qa1 18.Nc7 Qa4 19.Be2 cb4 20.Bb5–+) 18.Ra3 (18.Rb1 gh5 19.Bb2 Qh6 20.Bg7 Kg7 21.bc5 Rb7–+) 18...a6 (better is 18...cb4 19.Rb3 gh5–+) 19.h3 (19.d6 Rd7 (19...gh5?! 20.Bb2 Qb2 21.de7–+) 20.Nc7 cb4–+) 19...Nh6 (better is 19...ab5 20.Be2 cb4 21.Rb3 ba4 22.Rb4–+) 20.Rb3 (20.d6 Rf7 21.Nc7–+) 20...Ng4! 21.Bd2?? (21.hg4 Qh4 Double attack; 21.Bg4 ab5 Decoy) 21...Re8 (better is 21...ab5 22.Bg4 ba4 23.Bc3–+) 22.Qb1?? (22.Nc7 Rd8 A) worse is 23.hg4 Ra7 24.bc5 Rc7–+ (24...gh5?! 25.gf5 Rc7 26.Ba5–/+); B) worse is 23.Bg4 Ra7 24.Bc3 Qd6 25.Bg7 Kg7 26.Ne6 Be6 27.de6 cb4+=; C) 23.Na8+=) 22...Nh2 (better is 22...ab5 23.Bc3 Qh4 24.Bg7 ba4–+) 23.Kh2 (23.Nc7 Nf1 24.Qf1–+) 23...gh5?? (better is 23...ab5 24.bc5 gh5–+) 24.Kh1?? (better is 24.Nc7!? Qd8 25.Na8+–) 24...a5 (better is 24...ab5 25.Rg3 ba4–+) 25.ba5 (better is 25.Nc7 Qd8 A) worse is 26.Na8 ab4 (26...cb4?! 27.Be3+=) 27.Qd1 Ba6–/+; B) 26.Ne8 Qe8 27.bc5+=) 25...Qe7?? (better is 25...Qd8–/+) 26.a6?? (better is 26.d6 Qd7 27.Nc7+/–) 26...h4?? (better is 26...Na6 27.Qe1 Rd8–+) 27.Kh2?? (better is 27.d6 Qd7 28.Nc7 Ba6 29.Na8 (worse is 29.Ne8 Qe8 30.Rg1 Nc6–/+) 29...Bf1 30.Nc7=) 27...Ba6–+ ½–½. Topalov,Veselin (2755) – Malakhatko,Vadim (2570), Aiacciu Masters, Ajaccio FRA (3.1), 2004.

3.bc5 Nd7

4.d4 e5

5.e3 Qf6 6.Nc3 Qe6 7.de5 Qe5 8.Bb2 +/–.

5.e3 Ngf6

6.Bb2 ed4= 7.ed4 Be7 8.c4 0–0 9.Nc3 Re8 10.Nd5? Nd5 11.Ne2 Bg5 –+.

6.Bb5 a6 7.Bd7 Bd7 8.de5 Ne4 9.Qd5 Qh4 =.

6.c4 Rb8 +/–.

6.c4 ed4 7.ed4 b6 8.Qe2 Be7 9.cd5 Nd5 +/–.

6.Nd2 Qa5+= 7.Ngf3 e4 8.Ng1 b6 9.cb6 Nb6 10.Bb5 Bd7 11.Bd7 Nfd7 +=.

6.Nd2 Qa5+= 7.Ngf3 e4 8.Ng1 b6 9.c6 Nb8 10.c7 Na6 11.Bb5 Bd7 12.Bd7 Nd7 13.Ne2!? =.

6.Nd2 Qa5 7.Ngf3 e4 8.Ng1 Be7 9.c4 b6 10.c6 Nb8 11.cd5 Nd5 12.c7 Nc7 13.Qc2 Kd8 14.f3 ef3 15.gf3 Nd5 16.Ke2 Nc3 17.Kd3 Ba6 18.Nc4 Bc4 19.Kc4 Na4 –/+.

6.Nd2 Qa5+= 7.Ngf3 e4 8.Ng1 Be7 9.c4 Qc3 10.Ra3 Qa5 11.Bb2 dc4 12.Bc4 0–0 +/–.

6.Nf3 e4 7.Nfd2 Qa5 8.f3 Be7!? +=.

6.Nd2 Be7

7.Bb2 0–0 8.de5 Ne4 9.Ngf3 +=.

7.Bb2 0–0 8.de5 Ne8 9.Ngf3 Nc5 10.Bb5 a6 11.Bd3 Bd7 12.Bd4 Na4 13.c4 dc4 14.Bc4 b5 15.Bb3 +=.

7.Bb2 0–0 8.de5 Ne8 9.Ngf3 Nc5 10.Bb5 Qb6 11.Bd4 Nc7 12.Be2 Re8 13.0–0 +=.

7.c4 ed4 8.ed4 0–0 +=.

7.Bb2 ed4

8.ed4 0–0 9.c4 b6 10.cd5 bc5 +=.

8.ed4 0–0 9.Bd3 b6 10.cb6 Nb6 11.a5 Nbd7 12.Ne2 Bb4 13.a6 +=.

8.ed4 0–0 9.Bd3 b6 10.cb6 Re8 11.Ne2 Qb6 12.Ra2 Qc7 13.0–0 Bd6 14.Ng3 +=.

3.f4 cb4

4.Bb2 A) 4...Nc6 5.e3 (5.Nf3 Nf6 6.e3 g6 7.Bd3 Bg7 8.0–0 0–0 9.Qe1 Bg4 10.Qh4) 5...Nf6 6.Nf3 g6 7.Bd3 Bg7 8.0–0 0–0 9.Qe1 Bg4 10.Qh4; B) 4...Bf5 5.Nf3 Nc6 6.e3 Nf6 7.Nh4 Bg4 8.Be2 Be2 9.Qe2 e6 10.0–0; C) 4...Nf6 5.e3 (5.Nf3 Nc6 6.e3 g6 7.Bd3 Bg7 8.0–0 0–0 9.Qe1 Bg4 10.Qh4) 5...Nc6 6.Bd3 g6 7.Ne2 Bg7 8.0–0 0–0 9.f5 e5 10.fe6.

4.e3 A) 4...Nf6 5.Nf3 (5.Be2 Nc6 6.Bb2 g6 7.Nf3 Bg7 8.0–0 0–0 9.Bd3 Qd6 10.Qe1; 5.Bd3 Nc6 6.Nf3 g6 7.0–0 Bg7 8.Bb2 0–0 9.Qe1 Bg4 10.Qh4) 5...Nc6 6.Bb5 a6 7.Bd3 g6 8.0–0 Bg7 9.Bb2 0–0 10.Qe1; B) 4...Bf5 5.Ne2 (5.Nf3 Nc6 6.Bb2 Nf6 7.Nh4 Bg4 8.Be2 Be2 9.Qe2 e6 10.0–0; 5.Bb5 Nc6 6.Nf3 a6 7.Be2 Nf6 8.0–0 Qb6 9.Nh4 Bd7 10.Nf3) 5...Bd7 6.c3 a5 7.Nd4 Nf6 8.Be2 Nc6 9.0–0 Nd4 10.cd4; C) 4...Nc6 5.Bb2 (5.Nf3 Nf6 6.Bb5 a6 7.Bd3 g6 8.Bb2 Bg7 9.0–0 0–0 10.Qe1; 5.Be2 Nf6 6.Nf3 g6 7.Bb2 Bg7 8.0–0 0–0 9.Bd3 Qd6 10.Qe1; 5.Bd3 g6 6.Bb2 Nf6 7.Ne2 Bg7 8.0–0 Qc7 9.Nd4 Bg4 10.Qe1; 5.Bb5 a6 6.Be2 Nf6 7.Nf3 g6 8.0–0 Bg7 9.Bb2 0–0 10.Bd3) 5...Nf6 6.Nf3 g6 7.Bd3 Bg7 8.0–0 0–0 9.Qe1 Bg4 10.Qh4.

4.Nf3 A) 4...Nf6 5.Bb2 (5.e3 Nc6 6.Bb2 g6 7.Bd3 Bg7 8.0–0 0–0 9.Qe1 Bg4 10.Qh4) 5...Nc6 6.e3 Bf5 7.Nh4 Bg4 8.Be2 Be2 9.Qe2 e6 10.0–0; B) 4...Qd6 5.e3 Nf6 6.Bb2 Nc6 7.Bb5 a6 8.Be5 Qd8 9.Be2 Ne4 10.0–0; C) 4...Nc6–+ 5.Bb2 (5.e3 Nf6 6.Bd3 g6 7.Bb2 Bg7 8.0–0 0–0 9.Qe1 Bg4 10.Qh4) 5...Nf6 6.e3 Bf5 7.Be2 e6 8.Nh4 Bd6 9.Nf5 ef5 10.0–0.

2.a4 c6

3.a5 e5 4.c3 Nf6 5.e3 Bd6 6.Nf3 0–0 7.h4 (7.Be2 Qc7+=) 7...Bg4 8.d4? (better is 8.Qc2–/+) 8...e4–+ 9.a6 (9.Nbd2 ef3 10.gf3 Bf5–+) 9...b6 (9...ef3 10.ab7 fg2 11.Bg2 Bd1 12.ba8Q+–; 9...Na6 10.Ba6 ba6 11.Nbd2–+) 10.g3 (10.b5–+) 10...Bf3 11.Be2 Bh1 12.f3 (12.Kf1 Qc8 13.Kg1 Bf3 14.Bf3 ef3 15.Qf3 Na6–+) 12...Bg3 13.Kf1 Qd7 (13...Qd7 14.Bc4 Qh3 15.Ke2 Qg2) 0–1. Thrustagain – Jan2, playchess.de, 2003.

3.c4 e6 4.b5 Bb4 5.cd5 cd5 6.Bb2 Nf6 7.Nf3 Nbd7 8.g3 0–0 9.Bg2 Qb6 10.0–0 Bc5 11.h3 Ne4 The pressure on f2 grows 12.e3 Ndf6 13.Qb3 Bd7 14.Nc3 Rac8 15.a5 Qd6 16.Ne4 Ne4 17.Be5 Qe7 18.d3 Ng3 19.Bg3 Qf6 20.d4 Be7 21.Ne5 Rc7 22.Rac1 Rfc8 23.Nd7 Rc1 24.Nf6 (24...gf6 25.Rc1 Rc1 26.Kh2+–) 1–0. jer2lentino – javi, Live Game Caissa's Web, 2005.

3.d4 e5 4.c3 e4 5.e3 f5 6.h4 (6.Nh3 Nf6+=) 6...Be7 (6...Nf6 7.Ba3+=) 7.h5 Nf6 8.Ne2 Be6 (8...Bd6 9.Ba3+=) 9.Nf4 (9.Ba3 Nbd7+=) 9...Bf7= 10.Nd2 (10.Ba3 Nbd7=) 10...Nbd7 (10...Bd6 11.Be2+=) 11.Ba3 (11.Be2 Qc7+=) 11...b6 (11...0–0 12.Be2=) 12.Ba6 (12.Be2 Bd6=) 12...Rb8 (12...Qc7 13.b5+=) 13.Qe2 (13.Nf1 Ng8=) 13...Qc7 (13...Bd6 14.Nf1+=) 14.b5 (14.c4 0–0=) 14...c5+= 15.Rc1 Bd6 (15...Rd8 16.Nb3+=) 16.g3 (16.h6 g6+=) 16...0–0 (16...Rd8 17.c4+=) 17.c4 Rfe8 (17...Rbd8!?+=) 18.cd5= Nd5 19.Nd5 Bd5 20.Nc4 Bf8 21.Qd2 (21.0–0 Rbd8+=) 21...Rbd8–/+ 22.Qb2 (22.h6 Bc4 23.hg7 Ne5 24.gf8Q Rf8–+) 22...Bf7 (22...Nb8 23.a5–/+) 23.a5 ba5 24.Qd2? (better is 24.h6!?+=) 24...Bc4 (24...cd4 25.Nd6 de3 26.Qe3–+ (26.Rc7?? ed2 27.Kd2 Bd6 28.Bd6 Nf6–+)) 25.Rc4–/+ Ne5! 26.Qc2 (26.de5 Rd2) 26...Nc4 27.Qc4 Qf7 28.Qf7 Kf7 29.dc5? (better is 29.Bc5 Bc5 30.dc5–/+) 29...Rd3–+ 30.Bc1 (30.Bb2 Red8 31.0–0 Bc5–+) 30...Bc5 31.b6 (31.Bb2 Rb3 32.Bc1 Rd8–+) 31...Bb4 32.Kf1 (32.Ke2 Rc3 33.ba7 Ra8–+) 32...ab6 (32...Rd1 33.Kg2 Rh1 34.Kh1 ab6 35.Bb2–+) 33.Bd3 (33.Bc4 Ke7 34.Bd3 ed3–+) 33...ed3 34.Kg2 (34.h6 Rc8 35.Kg2 d2 36.Bd2 Bd2–+) 34...d2 35.Bb2 (35.Bd2 Bd2 36.Rb1 Bb4–+) 35...Rc8 36.Rd1 Rc2 37.Rd2 (37.Kf1 Rb2 38.e4 a4–+) 37...Rd2 38.Bg7 (38.Ba1–+) 38...Kg7 39.h6 Kh6 40.Kf3 Kg5 0–1. dannyboy238 – RageofKlugman, ChessWorld.net, 2006.

3.e3 Bf5 4.Bb2 e6 5.Ne2 Nf6=+ 6.b5 cb5 7.ab5 Qc7 8.Nd4 Bg6 9.Bd3 Bd3=+ 10.cd3 Bc5 11.0–0 0–0 12.Qf3 Nbd7 13.Rc1 Qb6 14.Na3 a6 15.Rab1 Qa5?? 16.Nb3+– Qb6 17.Nc5 Nc5 18.Bd4 Rfc8 19.ba6 Qa6 20.Bc5 Qd3 21.Nb5?? Rc5!–/+ 22.Nd6?? Rc1–+ 23.Rc1 Qd2 24.Rd1 Qb4 25.Qg3? Rd8 26.Nf7 Kf7 27.Qc7 Qe7 (28.Qe5 Kg8–+) 0–1. zoom7777 – 3AMOK, Live Game Caissa's Web, 2005.

3.Nf3 Nd7 4.Bb2 f6 5.e3 e5 6.b5 e4 (6...Bd6 7.Nc3=) 7.Nd4= Ne5 8.bc6 (8.f4 ef3 9.Nf3 Nf3 10.Qf3 Be6=) 8...bc6 9.Nc3 Bc5 (9...Rb8 10.Rb1=) 10.Rb1 Ne7 11.Be2 0–0 12.0–0 Rb8 13.Nb3 (13.d3 ed3 14.cd3 Bd4 15.ed4 Nf7=) 13...Bd6 14.d3 ed3 (14...f5 15.a5=) 15.cd3 Bf5 (15...Qc7 16.Qc2=) 16.Nd4 Bd7 17.Re1 (17.f4 Nf7=) 17...a6 18.Nc2 (18.Nb3 Qc7=) 18...Qa5 19.Qd2 c5 20.d4 Nf7 (20...cd4 21.ed4 N5g6 22.Ba3 Ba3 23.Na3=) 21.dc5= Bc5 22.Red1 Ba4 (22...Rfc8 23.Nd5 Qd2 24.Ne7 Be7 25.Rd2=) 23.Na4+= (< 23.Nd5 Qd2 24.Ne7 Be7 25.Rd2 Rfc8=) 23...Qa4 24.Ra1 Qb3 (24...Qh4 25.Bd4 Bd4 26.Nd4+=) 25.Rdb1 (25.Bd4 Bd4 26.Nd4 Qb4+/–) 25...Ne5 (25...Rb6 26.Ba6 (26.Ra6? Ra6 27.Ba6 Qa2–+) 26...Rfb8 27.Bf1+=) 26.Qd1+/– (26.Ra6?! Nc4 27.Bc4 Qc4+=) 26...Nc4?? (better is 26...Qb2 27.Rb2 Rb2 28.Ra6 Rfb8+/–) 27.Bd4+– Qb1 (27...Bd4 28.Rb3 Ba1 29.Na1 Rb3 30.Qb3+–) 28.Rb1 Bd4 29.Nd4 Rbd8 (29...Kh8 30.e4 Nb2 31.Qc1+–) 30.Ne6 Kf7 (30...Rde8+–) 31.Nd8 Rd8 32.Bc4 (32...Rd6 33.Ra1+–) 1–0. kamret (2195) – elo2102 (1945), GameColony.com, 2003.

3.Nf3 e5 4.Ne5 Bb4 =+.

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

3.Nf3 f6 4.e3 e5 5.Ba3 Be6 6.Be2 Ne7 7.0–0 Nf5 8.b5 Ba3 9.Na3 0–0 10.d4 e4 11.Nd2 Qc7 12.c4 Nd7 13.Rc1 Qd6 14.bc6 bc6 15.c5 Qc7 16.Rb1 Rab8 17.Qc2 Nh4 18.Rb8 Rb8 19.Qa2 f5 20.Nc2 f4 (better is 20...Qa5!? 21.Nb3 Qc3+=) 21.Ne4!+/– Bh3?? (21...de4 22.Qe6) 22.gh3+– f3 (22...Ne5 23.de5 Qe5 24.Nd6+–) 23.Bd3 Nf6 (23...Kh8 24.Nd6+–) 24.Nf6 gf6 25.Kh1 Kh8 26.Rg1 Rg8 (26...Qa5 27.Rb1 Rg8 28.Rb7+–) 27.Rg8 Kg8 28.e4 Qg7 (28...Qf4 29.Ne3 Kg7 30.ed5 Qd4 31.Qb1 Qc5 32.Qb7 Kg8 33.Bc4+–) 29.Bf1 (29.Ne3 Kf8 30.ed5 Ng2 31.dc6 Ne3 32.fe3 Qe7+–) 29...Qg5 (29...Qf7 30.ed5 Kg7 31.Nb4 cd5 32.Qd5+–) 30.ed5 cd5 31.Ne3 Kg7 (31...Ng6 32.Qd5 Qd5 33.Nd5+–) 32.c6 Nf5 33.Qd5 Ne3 34.Qg5 fg5 35.fe3 Kf7 36.c7 (36...Kg6 37.c8Q Kf6 38.Bc4 Kg6 39.Qg8 Kh6 40.Qf8 Kg6 41.Bd3 Kh5 42.Qf7 Kh4 43.Qh7#) 1–0. b4_player (2240) – jaydonster (1775), GameColony.com, 2003.

3.e3 e5

4.Bb2 Nd7 5.Nf3 =+.

4.b5 Bd7 5.Bb2 Bd6 6.Nf3 f6 7.Be2 Ne7 8.0–0 0–0 9.c4 a6 10.d4 e4 11.c5 ef3 12.Bf3 Bc7 13.b6 Bb6 14.cb6 Qb6 15.Ba3 Re8 16.Nc3 Bf5 17.e4 de4 18.Ne4 Be4 19.Be4 Nd5? (better is 19...Nd7+/–) 20.Bh7!+– Kh7 21.Qh5 Kg8 22.Qe8 Kh7 23.Bc5 Qc7 24.Ra3 b6 (24...Nf4 25.Re1 Qd7 26.Qe4 Ng6 27.Rh3 Qh3 28.gh3 Kh6+–) 25.Rh3 1–0. Kotainy,Jens (2110) – Miller,Eduard, GER–ch Net qual1 U14 blitz, 2008.

3.Nf3 Nf6

4.Bb2 Nbd7 5.e3 Qc7 6.c4 e5 7.cd5 Nd5 8.b5 e4 9.Nd4 c5 10.Qb3 Nb4 (10...cd4?! 11.Qd5 Nc5 12.Qd4=) 11.Nc2 (not finished). marekt – Klaus_Behrmann, ChessWorld.net, 2003.

4.Bb2 h6 5.b5 Nbd7 6.e3 Qc7 7.Be2 e5 8.0–0 Be7 9.Nh4 Ne4 10.Nf5 Bf6 11.d3 Ng5 12.bc6 bc6 13.Ba3 c5 14.Nc3 Nb6 15.Nb5 Qd7 (Better is 15...Qc6 16.Nfd6 Kf8+/–) 16.Bc5 Qf5 (16...Qc6 17.d4 Bf5 18.Nd6 Kd8+–) 17.Nd6 Kd8 18.Nf5 Bf5 19.c4 e4 20.Rc1 Ne6 21.Ba3 Be7 22.c5 Nc5 23.Bc5 Bc5 24.de4 Be4 25.Rc5 Ke7 26.Rc7 Nd7 27.Bb5 Rhd8 28.Qg4 f5 29.Qg7 Ke6 30.Rc6# 1–0. MT – guest2255, ICC, 2004.

4.c3 Bg4 5.d4 e6 6.Bf4 Bd6 7.Bd6 Qd6 8.Nbd2 Nbd7 9.e3 0–0 10.Be2 e5 11.de5+= Ne5 12.Ne5 Be2 13.Nf7 Qc7 14.Nh6!–/+ gh6 15.Qe2 Qg7 16.0–0 Kh8 17.c4 Rg8 18.Qf3 Raf8 19.Qh3 Qg6 20.c5 Rg7 21.Rad1 Rfg8 22.g3–/+ Ne4 23.Ne4+– Qe4 24.Rd4 Qc2 25.a5 Qg6 26.Rh4 Qc2 27.Qe6 Qe2 28.a6 Qa6–/+ 29.Qh6 Qb5 30.Qf6 a5 31.Qe5 ab4?? 32.Rh7!! Kh7 33.Qh5 1–0. lucya (2165) – rwfield (1815), GameColony.com, 2002.

3.Nf3 Bg4

4.b5 Nd7 5.bc6 bc6 6.d4 e6 7.Bf4 Ngf6 8.h3 Bf3 9.ef3 c5 10.Bb5 Qb6 (10...Qa5 11.Bd2 Qc7 12.c3–/+) 11.Be3 a6 12.Bd7 Nd7 13.Nc3 (13.0–0 Qb2 14.Na3 c4–/+) 13...c4 (better is 13...Qa5!? 14.Bd2 cd4–+) 14.Ne2 Rb8 15.0–0 Be7 16.Rb1 Qb1 17.Qb1 Rb1 18.Rb1 Kd8 19.Rb7 Kc8 (19...Bd6 20.Ra7+=) 20.Ra7+/– Nb8?? (better is 20...Rf8+/–) 21.Re7+– Rf8 22.Bf4 1–0. kamret (2225) – Fetzer (1840), GameColony.com, 2003.

4.b5 Bf3 5.ef3 Nf6 6.Bb2 e6 7.Be2 Bd6 8.Nc3 c5 9.a5 0–0 10.0–0 c4 11.d3 d4 (11...cd3 12.Bd3 Nbd7 13.Ne2=+) 12.Ne4= c3 13.Bc1 Bc7 14.Bg5 Nbd7 (< 14...Ba5 15.Nf6 gf6 16.Bh6+/–) 15.Ra4 h6 16.Bh4 g5 17.Bg3 e5 18.Nf6 Qf6 19.Re1 Qd6 20.a6 (20.Qa1!?=) 20...Rfb8 21.ab7 (21.Bf1 Qd5=+) 21...Rb7 22.Ra6 Rb6 23.Rb6 Qb6 24.Qa1 Qb5 25.Bf1 a5 26.h4 gh4 27.Bh4 a4 28.Rb1 Qd5 29.g3 (29.Be2 a3 30.f4 a2–+ (30...ef4?! 31.Bf3 Qa5 32.Bc6=)) 29...a3 (29...Qf3? 30.Bg2 Qe2 31.Ba8+–) 30.Bh3 (30.Re1 Qb5 (30...Qf3? 31.Bg2 Qg2 32.Kg2+–) 31.Qa2 Nb6–+) 30...a2 31.Re1 Qb5 32.Kg2 (32.Bf5 Nf8 33.Be4 Ra6–+) 32...Nf8 33.Bf5 0–1. marekt – raz68, ChessWorld.net, 2003.

2.a4 Nc6

3.b5 Na5 4.Nf3 a6 5.d3 c6 6.Bf4 cb5 7.ab5 ab5 8.Nc3 g6?? (better is 8...f6 9.d4 g5+/–) 9.Nb5+– Qd7 (9...e5 10.Be5 f6 11.Nc7 Kf7 12.Na8 fe5 13.Ne5 Kg7+–) 10.Nc7 (10...Kd8 11.Na8+–) 1–0. miehnekort – fahman_strococaster74, Yahoo, 2005.

3.b5 Nb4 4.c3 e5 5.cb4 Nf6 (5...Bb4 6.a5+–) 6.Ba3 (6.Qb3 Bd6+–) 6...Ne4 (better is 6...Bd6+–) 7.d3?? (better is 7.Nf3+–) 7...Nf2= 8.Kf2 e4?? (better is 8...Qh4 9.g3 Qd4 10.Kg2 Qa1=) 9.Nc3 (better is 9.d4+–) 9...Qf6 10.Nf3! Qc3 (10...ef3 11.Nd5 Decoy) 11.de4 de4 12.Ng5?? (better is 12.Qd4 Qd4 13.Nd4+–) 12...Qf6–/+ 13.Nf3 Qb6?? (better is 13...ef3 14.ef3 Bd6–/+) 14.Nd4+/– g5 (14...Qf6 15.Ke3+/–) 15.a5 (better is 15.e3!?+–) 15...Qf6+/– 16.Kg1 Bg4? (16...e3 17.Nf3 g4+=) 17.h3 (17.Qd2 0–0–0 18.Bb2 Qf4+–) 17...Bd7 (17...e3 18.Nf3 Bg7+/–) 18.e3+– Bh6 (18...Bd6 19.Bb2+–) 19.Qd2 (19.Qc2 Qe5 20.Bb2 g4+–) 19...a6 (19...g4 20.hg4 Bg4+–) 20.ba6 ba6 21.Bc4 g4 (21...Qg6 22.Rf1 f6 23.Bb2+–) 22.Rf1 Qg5 (22...Qd6 23.Bf7 Kd8+–) 23.Bf7 Ke7 24.b5 (24.Nc6 Kf8 25.b5 Qe7 26.Be7 Kg7 27.Qc3) 24...c5 25.Nf5! Bf5 26.Bc5 Kf7 27.Qd5 Kg6 28.hg4 Qg4 29.Rh6 (29.Qc6 Be6 30.Rh4+–) 29...Kh6+/– 30.Rf5 Rag8?? (better is 30...Qg6+/–) 31.Rf6 (better is 31.Qd6 Rg6 32.Qh2 Kg7 33.Bd4 Rf6 34.Qc7 Kh6 35.Rf6 Qg6 36.Rg6 Kg6 37.Qc6 Kf7 38.Qb7 Ke6 39.Qa6 Ke7 40.Qf6 Kd7 41.Qh8 h5 42.a6 h4 43.a7 h3 44.gh3 Kd6 45.a8Q Ke6 46.Qf6 Kd7 47.Qac6) 31...Rg6+= 32.Rg6 Qg6 33.b6 Rg8 34.Qd2 (better is 34.Qd6 Qd6 35.Bd6+–) 34...Qc6? (better is 34...Qg5 35.Bd6 Qb5+=) 35.Qd6+– Qd6 36.Bd6 Rd8?? (36...Rc8+=) 37.Bc7?? (better is 37.b7+–) 37...Rd1= 38.Kf2 (38.Kh2 Rb1=) 38...Rb1 39.Kg3 (39.g4 Kg5 40.Kg3 Rb5=) 39...Kg6 (better is 39...Kg5+=) 40.Kf4+/– 1–0. saros – laure, net–chess.com, 2002. (=1.a4 d5 2.b4 Nc6)

3.b5= Nd4 4.Bb2 e5 5.e3 Ne6 6.Be5 f6 7.Bb2 Bb4 8.a5 a6 9.ba6 Ra6? (better is 9...ba6 10.c4 Rb8 11.Qh5 g6 12.Qd5 Bd6+/–) 10.Ba6+– ba6 11.Qg4 d4 12.Ne2 Nc5 (12...Ne7 13.Qh5 g6+–) 13.Qg7 Bd2 (13...de3 14.fe3 Ne4+–) 14.Nd2 de3 15.fe3 Nd3 16.cd3 Qd3 17.Qh8 Kf8 18.Rf1 Bg4 19.Rf6 Ke7 (19...Ke8 20.Qg8 Kd7 21.Qg4 Qf5 22.Qf5 Kd8 23.Rf8 Ke7 24.Ba3 c5 25.Bc5) 20.Qg7 Kd8 21.Rf8 1–0. orane (2190) – vello01, Live Game Caissa's Web, 2004.

3.c3 e5 4.d4 Nf6 (4...ed4!? 5.b5 Na5 6.cd4 Nf6+=) 5.b5= Ne7 6.de5 Ne4 7.Nf3 Nf5 8.a5 Bc5 9.e3 Qd7 10.Bd3 0–0 11.0–0 c6 12.Nd4 a6 (12...Nd4 13.ed4 Be7 14.bc6 Qc6 15.Qc2+/–) 13.bc6+– bc6 14.f3 Nc3 15.Bf5 Nd1 16.Bd7 Bd7 17.Rd1 Rab8 (17...Rae8 18.Ba3 Ba3 19.Ra3+– (19.Na3?! c5+–)) 18.Ba3 Ba3 19.Ra3 Rbe8 (19...c5 20.Ne2 Rfd8+–) 20.Rc3 Re5 21.Nc6 Bc6 22.Rc6 Re3 23.Ra6 d4 (23...Rb8 24.Kf2 Reb3 25.Nd2+–) 24.Rd6 d3 25.Nd2 g5 26.Nc4 (26.Nc4 Re2 27.R6d3+–) 1–0. miehnekort – kdolla22, Yahoo, 2005.

3.c3 e6 4.Nf3 Nh6 (4...Nf6 5.g3–/+) 5.d4+= Bd6 6.Bg5 f6 7.Bh6 gh6 8.b5 Na5 9.Rg1 (9.Nbd2 c6=) 9...Rf8 (9...Bd7 10.Nbd2–/+) 10.Qc2 f5 (10...Qe7 11.Nbd2+=) 11.e3 (11.Nbd2 Qe7+=) 11...Qf6 (11...c5 12.bc6 Nc6 13.Nbd2=) 12.c4= dc4 13.Bc4 Bb4 (13...Nc4 14.Qc4 e5 15.Nc3=) 14.Nbd2 Qe7 (14...f4 15.Bd3+=) 15.0–0–0 (15.g3 b6+=) 15...Qd6 16.Ba2 (16.Ne5 a6+=) 16...Ba3 17.Kb1 Qb4 (17...a6 18.Nc4 Qb4 19.Nb2 ab5 20.ab5+=) 18.Ka1+= Bb2?? (better is 18...Qe7+=) 19.Qb2+– Qb2 20.Kb2 c6 21.Nc4 Nc4 22.Bc4 Bd7 23.g3 a6 24.ba6 ba6 25.Ne5 Bc8 26.Ka2 Bb7 27.Be6 Ke7 28.Bd7 Rad8 29.Bc6 Bc8 30.Bf3 Be6 31.Ka1 Bb3 32.Nc6 Ke8 33.Bh5 Kd7 34.Rc1 Bd5 35.Nd8 Bb3 ½–½. Ruprich,Tony (2095) – Fuelsch,Peer (2075), remoteschach.de, 2002.

3.c3 Bf5 4.Na3 e5 5.Nf3 Qf6 6.Nb5 0–0–0 7.Bb2 (better is 7.d4 Qe6 8.de5+=) 7...a6–/+ 8.Na3 Nh6 (8...e4 9.b5 ef3 10.bc6 Qc6 11.gf3–/+) 9.c4? (9.b5 Nb8=+) 9...Nb4 10.Ne5 dc4 11.Rc1 (11.Nec4 Qe7 12.Ne3=+) 11...Rd5?? (11...c3 12.Bc3 Na2 13.Nac4–+) 12.Rc4?? (better is 12.Nac4 Bc5 13.Qb3+=) 12...Re5–+ 13.Be5 Qe5 14.Rb4? (14.e3–+) 14...Qd6 (better is 14...Bb4!? 15.Nc4 Qc5 16.e3–+) 15.Nc2?? (15.Rb3 Qd7 16.Nc4 Bc5+/–) 15...c5?? (better is 15...Bc2 16.Qc2 Qb4–+) 16.Rb2 a5? (better is 16...Ng4!? 17.Ne3 Ne3 18.fe3 c4+/–) 17.Ne3+– Bd7 18.Qb1 Ba4? (18...Qg6 19.Qg6 hg6 20.Nc4+–) 19.Rb7 Kd8 (19...Qd4+–) 20.Rb8 Ke7 21.Nc4 (better is 21.Qe4 Qe6 22.Qa4 Kf6+–) 21...Qc7 (21...Qd5 22.Nb6 Qd4 23.e3+–) 22.e3 (better is 22.Rb7 Qb7 23.Qb7 Kf6 24.Qf3 Ke7 25.Qe4 Kd8 26.Qd5 Kc7 27.Qe5 Kd8 28.Qb8 Ke7 29.Qc7 Kf6+–) 22...Bc2?? (22...Bc6 23.Qb6 Qb6 24.Rb6+– (24.Nb6?! Nf5+/–)) 23.Qb2 (better is 23.Qb5 Be4 24.Re8 Kf6 25.Re4+–) 23...Be4 24.Rb5 g6 (24...a4 25.Nb6 Bc6 26.Rc5+–) 25.Ra5 (better is 25.Qh8!? Nf5+–) 25...Bg7 (25...f6 26.d3 Bc6 27.Ra6+–) 26.Qa3 (better is 26.Qg7 Qb8 27.f3+–) 26...Bd5 (26...Kd8+–) 27.Rc5 Bc6 28.Na5 Ra8 (28...Ke8 29.Bb5 Qd6 30.Nc6 Nf5+–) 29.Rc6 Kd8 30.Rc7 Kc7 31.Qc5 Kb8 32.Nc6 Kb7+– 33.Bb5 Ng4 34.Ke2 Ne5 35.Ne5 Be5 36.Qe5 Ra5 37.Rc1 Kb6 38.Qd4 Kb5 39.Qg7 Ka6 40.Qf7 Rg5 41.Qh7 Rg2 42.Rc5 Kb6 43.Qe7 Rh2 44.Qd6 Ka7 45.Qh2 (45...Kb6 46.Qc7 Ka6 47.Ra5#; 45.Rc7 Ka8 46.Qd8#) 1–0. hugeorc – kevdonk, Live Game Caissa's Web, 2004.

3.c3 Nf6 4.Qb3 e5 5.Na3 (5.a5 Bd6–/+) 5...a6 6.Bb2 (6.Nc2 Bd6–/+) 6...Be6 (better is 6...Bd6–/+) 7.0–0–0?? (7.Nf3 Be7–/+) 7...d4 (better is 7...Ne4 8.Nh3 Bh3 9.gh3 Nf2–+) 8.Nf3?? Bb3 9.Re1 h6 10.e3 de3 11.fe3 Ne4 12.Nc4 Nf2 13.Rg1 e4 14.Re2 Nd3 15.Kb1 Bc4 16.b5 ef3 17.gf3 Nce5 18.Bh3 ab5 19.Ba3 Ba3 20.Rg3 Qd5 21.e4 Ba2 22.Kc2 Qb3# 0–1. idontknow – cacook (1620), net–chess.com, 2006.

3.b5 Ne5

4.d4 Nc4 5.e4 Nb6 6.a5+/– Nc4 7.ed5 Qd5 8.Qe2 Qb5? (better is 8...Nd6 9.Nf3 Nf5+=) 9.Qc4+– Qc4 10.Bc4 Nf6 11.Nf3 1–0. marekt – chessterfield, ChessWorld.net, 2003.

4.d4 Nc4 5.e4 e6 6.Bc4 dc4 7.Ba3 Ba3 8.Na3 c3 9.Ne2 e5 10.de5 Qd1? (Better is 10...Qg5!? 11.0–0 Qe5–/+) 11.Rd1+– Bg4 12.f3 Bh5 (12...Be6 13.Nc3 Ne7 14.f4+–) 13.Nc3 Ne7 14.Nc4 0–0 15.h4 Bg6 16.Rd7 Nc8 17.h5 Be4 18.Ne4 Nb6 19.Nb6 ab6 20.Rh4 Ra4 21.Nf6! gf6 22.Ra4 fe5 23.Rc7 f5 24.Rb7 Rc8 25.c4 e4 26.fe4 fe4 27.Rb6 e3+– 28.Re6 Rf8 29.Re3 Rf5 30.b6 Rh5 31.Rb4 Rh1 32.Ke2 Rh2 33.b7 Rg2 34.Kf3 Rg7 35.b8Q 1–0. market (2155) – comino, GameColony.com, 2002.

4.d4 Nd7 5.Nf3 =.

4.d4 Ng6 5.Nf3 =.

2.a4 Qd6

3.Ba3=+ Qd8 4.Bc1 e5 5.Bb2 d4 6.Nf3 Bd6 7.Na3 Bg4 8.Nc4 Bf3 (< 8...Bb4 9.Nce5 Bf3 10.Nf3+/– (< 10.gf3 Qd6 11.f4 f6=)) 9.ef3 Nf6 10.f4 ef4 (< 10...Bb4 11.fe5 Nd5 12.Bd4+/–) 11.Qf3 Nc6 12.b5 Nb4 13.0–0–0 0–0 14.Bd4 b6 (14...a6!?=) 15.Bf6 (15.Nd6 Qd6 16.Bf6 Qf6=) 15...Qf6+= 16.c3 a6 17.cb4 Qa1 18.Kc2 Qa4 19.Qb3 Qb5 (19...ab5 20.Qa4 ba4 (20...Ra4? 21.Nd6 cd6 22.Kb3+–) 21.Nd6 cd6+–) 20.Nd6+– Qc6 21.Nc4 b5 22.Ra1 (22.Qf3 Qf3 23.gf3 bc4+–) 22...bc4 23.Qc4 Qf6 24.Be2 c5 (24...Rfd8 25.Bf3 (25.Qc7 Rac8 26.Qc4 Qe6 27.Qc8 Qc8 28.Kd1 Qc3–+; 25.Ra6?! Ra6 26.Qa6 Qh4+–) 25...Rd4 26.Qd4 Qd4 27.Ba8 Qc4 28.Kd1 Qb3 29.Ke2 Qc4 30.d3 Qc2 31.Kf1+–) 25.bc5 (25.Ra6?! Ra6 26.Qa6 Qg5 27.bc5 Qc5 28.Qc4 Qf2+–; < 25.Qc5 Rfc8–+) 25...a5 (25...Rab8 26.Rhc1+– (26.Qa6 Qb2 27.Kd1 Rfd8=)) 26.Qc3 Qc6 (26...Qg6 27.Bd3 Qc6 28.f3+–) 27.Bf3 (27.Ra5?! Ra5 28.Qa5 Qg2+–) 27...Qg6 28.Kd1 Rac8 (28...Rab8 29.Qc2 (29.Qa5?? Rb1 30.Rb1 Qb1 31.Ke2 Re8 32.Be4 Qe4 33.Kd1 Qb1) 29...Qf6 30.Ra5+–) 29.d4 (29.Ra5?! Qb1 30.Qc1 Qb4+–) 29...Rfd8 30.Re1 Qf5 (30...Qf6 31.Re4+–) 31.Ra5 Rb8 32.Ra1 Rbc8 33.Ra7 (33.Ke2 Qf6 34.Rad1 Qa6 35.Qd3 Qh6+–) 33...Rc5 34.Qc5 Qc5 35.Re8!! Re8 (35...Qf8 36.Rf8 Kf8+–) 36.dc5 h6 (36...g6 37.c6 Kg7 38.Rd7+–) 37.c6 Rc8 (37...Re5 38.Ra8 Kh7 39.c7+–) 38.c7 g5 (38...Kh7 39.Bb7 Rc7 40.Be4 g6 41.Rc7 Kg7+–) 39.Ra8 (39...Ra8 40.Ba8+–) 1–0. market (2165) – mauna (1830), GameColony.com, 2002.

3.Ba3=+ Qf6 4.Nc3 e6 5.e4 d4 6.Nb5 Na6 7.c3 c6 (Better is 7...dc3!? 8.dc3 c6=) 8.Nd4–/+ Nb4 (8...Nc7!?–/+) 9.Nb3+– (9.Bb4?! Bb4 10.Ndf3 Bd6=; worse is 9.cb4 Qd4 10.Qb1 Nf6=+) 9...Na6 10.Bf8 Kf8 11.Ba6 ba6 12.d4 Ne7 13.Nc5 Qg6 14.Qf3 h5 15.Rb1 Kg8 16.Nh3 h4 17.Nf4 Qg5 18.Nfd3 Ng6 19.e5 Kh7?? 20.Qc6 h3 21.Qa8 hg2 22.Rg1 Nh4 23.Qe4 g6 24.Ke2 Rd8 25.Ne1 Bd7 26.Rb7 Be8 27.Ne6 Qh5 28.Kd2 Rc8 29.d5 Kh8 30.Nf4 Qh6 31.Neg2 Nf5 32.Ra7 Qf8 33.Qb4 Qh6 34.Ra6 Rd8 35.Ne3 Qh2 36.Rg2 Qh6 37.Nf5 gf5 38.Rh6# 1–0. market (2160) – Bendex, GameColony.com, 2002.

3.Ba3=+ Nf6 4.b5 Qf4 5.d4=.

3.Nc3 e5 4.Bb2=+.

3.Nc3 Nf6 4.Ba3=+.

3.Nc3 c6

4.Ba3= e5 5.b5 c5 6.e3=.

4.Ba3= Bf5 5.Nf3 Qc7 (5...e5 6.b5 Qf6 7.Bf8 Kf8 8.bc6 bc6 9.d4=) 6.e3 (6.b5 Nf6=) 6...e5 7.Be2 Nf6 8.0–0 Nbd7 (8...Bd6 9.a5=+) 9.a5 (9.b5 Ba3 10.Ra3 c5=) 9...a6 (9...Bd6 10.b5=+) 10.d4 e4 11.Nh4 (11.Nd2 0–0–0=+) 11...Bg6 (11...Be6 12.f4 ef3 13.Nf3=+ (13.Bf3? g5–+)) 12.f4 (12.Na4 Bd6 13.h3 Rd8=) 12...ef3=+ 13.Bf3 Bd6 14.h3 Bg3 15.Ng6= hg6 16.Qd3 16...0–0–0=+ 17.Ne2 Rde8 18.c4 dc4 19.Qc4= Re3 20.Qf7+= Rhe8 21.Ra2 Bh2 22.Kh1 Bg3 23.Qg7–/+ g5 24.Bc1 R3e7 25.Qg5 Rg8 26.Qf5+– Bd6 27.b5 ab5 28.a6 b6 29.a7 Kb7 30.Nc3 Ree8 31.Nb5 Rh8 32.Nc7 Kc7 33.Qc2 c5 34.Qa4 1–0. market (2185) – Elo2101 (2130), GameColony.com, 2002.

4.Ba3= Qf6 5.b5 g6 (5...Nd7 6.e3=) 6.bc6 bc6 7.Nf3 Bg7 8.d4 Nd7 (8...Nh6 9.Rb1=) 9.e4= e6 (9...Qe6!?=) 10.e5 (10.Bd3 Qd8 11.0–0 Ne7–/+) 10...Qd8 11.Rb1 Ne7 12.Bd3 (12.Be2 c5+=) 12...0–0 (12...c5 13.Bc5 Nc5 14.dc5+=) 13.Bd6 Re8 14.0–0 Nb6 15.Ba3 Nc4 16.Bc4 dc4 17.Qe2 a5 18.Be7 Qe7 19.Ne4 Ba6 20.Nc5 Qa7 21.Qe1 Bc8 22.Qc3 Bf8 23.Ne4 Be7 24.Rfd1 Ba6 25.Qa5 Qd7 26.Nc5 Qd5 27.Qb6 Bc8 28.c3 Bd8 29.Qb4 Ba5 30.Qb2 Ba6 31.Ng5 h6 32.Nge4 Bc7 33.Nf6 1–0. market (2270) – Elo2101 (2030), GameColony.com, 2002.

4.Ba3= Nf6 5.e3=.

2.a4 e5

3.Ra3 Bb4 4.Re3 Nc6 5.c3 Bd6 6.Qb3 Nf6 7.d4 0–0 8.de5 Ne5 9.f4 Nc6 10.Ba3 Ba3 11.Qa3 Qd6 12.Qa2 Bd7 13.Nf3 Ne4 14.Rd3 Be6 15.c4 dc4 16.Rd6 cd6 17.e3 Nc3 18.Qc2 Nb4 19.Qc1 Ncd5 20.Bc4 Rae8 21.0–0 a5 22.Rd1 Nf6 23.Bb5 Bb3 24.Rd6 Ne4 25.Rb6 Rd8 26.g3 Rd3 27.Bd3 Nc6 28.Be4 Rd8 29.Rb3 Nb4 30.Qc7 Rf8 31.Qa5 Nc6 32.Qb6 Rb8 33.Bc6 1–0. arthur75 – pulaster, gameknot.com, 2012. (=1.a4 e5 2.b4 d5)

3.Ra3 Nc6 4.Nc3 Nf6 5.b5 Ne7 6.d3 c6 7.Rb3 Ng6 8.a5 Bd6 9.Bg5 0–0 10.e4 Be6 11.d4 ed4 12.Qd4 Be7 13.bc6 bc6 14.Rb7 a6 15.Qb6 Qb6 16.Rb6 Bc5 17.Rc6 Ng4 18.Rc5 N6e5 19.Be7 Rfc8 20.Rc8 Rc8 21.Ba6 Re8 22.Bd6 Nf6 23.Be5 Ng4 24.Bb5 de4 25.Bd6 Nf6 26.Ne4 Nd7 27.Ng5 Nb8 28.Be8 1–0. arthur75 – pulaster, gameknot.com, 2012. (=1.a4 e5 2.b4 d5)

3.Ba3 a6 4.e3 Nf6 5.c4 Nc6 6.cd5 (6.b5 ab5 7.cd5 Qd5+=) 6...Nd5 (6...Nb4!? 7.Bb4 Bb4–/+) 7.b5+= Ncb4 8.e4? (8.ba6 ba6 9.Nc3 Bb7+=) 8...Nf6 (8...Qh4 9.Qb3 Qe4 10.Kd1–+) 9.Qb3? (9.Nc3 Ne4 10.Nf3 Bf5 11.Bb4 Bb4–+) 9...a5 (better is 9...Qd4!? 10.ba6 Qa1 11.Bb4–+) 10.Bc4 (10.Nc3 Bg4 11.b6–/+) 10...Qd7 (10...Qd4 11.Bf7 Kd8 12.Bb4 ab4–/+ (12...Qa1?? 13.Bc3 Qc3 14.Nc3+–; 12...Bb4?! 13.Ra2–/+)) 11.Nf3 (11.Nc3 Qg4 12.Bf7 Kd8=) 11...Bd6 (11...Ne4 12.Bb4 ab4 13.Qe3+=) 12.Ng5 (12.Nc3 0–0=) 12...Rf8 (12...Qg4 13.Bf7 Ke7 14.h4–/+) 13.Nc3 (13.d3+=) 13...Bc5 (13...Qg4!? 14.h4 h6 15.Nf7 Qg2 16.Nd6 cd6–/+) 14.Nd5 (better is 14.0–0=) 14...h6?? (14...Nfd5 15.Bd5 c6= (worse is 15...Nd5 16.Bc5 Nf4 17.Bf8 Kf8 18.g3 Nd3 19.Ke2 Nf2 20.Rhf1 Qg4 21.Kf2 Qg5 22.Kg1+–)) 15.Nf6+/– (15.Bb4?! Bb4 (worse is 15...ab4 16.Nf6 gf6 17.Nh7+–) 16.Nf6 gf6+=; 15.Nb4? ab4 (15...hg5?! 16.Nd5 Ba3 17.Ra3+=) 16.Bb4 Bb4 (16...hg5 17.Bc5 Ne4 18.Be3+=) 17.Qb4 hg5–+) 15...gf6 16.Nh7 Qe7 (16...Qd4 17.0–0+– (17.Nf6?! Ke7 18.Nd5 Nd5 19.Bc5 Qc5 20.Bd5 c6+/–)) 17.Nf8 Qf8 18.0–0 b6 (18...f5 19.Rac1 fe4 20.Bf7 Qf7 21.Qf7 Kf7 22.Rc5+–) 19.Rac1 (19.Bd5 Ra7 20.Rfc1 f5+–) 19...Bb7 20.d3 (20.Bb4 ab4 21.Bd5 Bd5 22.Qd5 Ra4 23.Qc6 Kd8 24.Qf6 Qe7 25.Qh6 Qd6+–) 20...Rd8 21.Rfd1 Qg7 22.Kf1 f5 23.Re1 fe4+/– 24.de4 f5 25.f3 fe4+/– 26.fe4 Qf6 27.Qf3+– Qf3 28.gf3 c6 29.Red1 Rd1 30.Rd1 Bd4 31.Ke2 c5 32.Rd2 Ke7 33.Bb2 Bc8 34.Kf1 Bh3+/– 35.Ke2 Bb2?? 36.Rb2+– Be6 37.Bb3?? c4+= 38.Bc2 c3–/+ 39.Kd1?? cb2–+ (39...cb2 40.Bb1 Bb3 41.Kd2 Ba4–+) 0–1. Childress,Steven – Vance,Laura, IECC, 1999. (=1.a4 d5 2.b4 e5)

3.Ba3 g6 4.e3 Bg7 5.d4 Ne7 6.c3 0–0 7.Be2 Be6 8.Nd2 e4 9.c4 c6 10.b5 Nd7 11.h4 Bh6 (11...c5 12.Rc1 cd4 13.ed4+=) 12.g4 f6 13.Qb3 Rf7 14.Nh3 Nb6 15.c5 Nd7 16.Ne4! Nc8 (16...de4 17.Qe6 Pinning (17.Qe6 Deflection)) 17.Nc3 Qe7? (17...Rb8 18.h5+/–) 18.Bd1?? (18.bc6 bc6 19.Qb7 Rb8 20.Qc6 Nf8+–) 18...g5?? (better is 18...Rb8+/–) 19.bc6+– bc6 20.Qb7 Rb8 21.Qc6 Nf8 22.h5 f5? 23.f3 Bg7+/– 24.gf5 Rf5? 25.Qa6+– Rb3?? 26.Rg1 h6?? 27.Ra2 Qc7?? 28.Rgg2 Rf6?? 29.Nf2 Bd7 (29...Bd7 30.Nd5 Re3 31.Kd2 Ra6 32.Nc7 Ra3 33.Ra3 Rc6 34.Bb3 Kh7+–) 0–1. Rosmuller,A (2090) – Olabe Odriozola,E (1900), 15th HZ Open, 2011.

3.Bb2 Qd6 4.Ba3 Be7 5.d4 e4 (5...ed4 6.Nf3–/+) 6.c4 (6.e3 Qg6+=) 6...c6 (6...dc4 7.e3–/+) 7.c5 (7.b5 Qe6=) 7...Qg6 8.f4 (8.e3 Nf6+=) 8...Bf6 9.Nc3 (9.e3 Bg4 10.Qc2 Ne7–/+) 9...Ne7 (9...Nh6 10.Bc1–/+) 10.Qd2 (10.e3 Bg4 11.Qd2 0–0–/+) 10...Bg4 (10...Qh5 11.g3 Nf5–/+) 11.b5? (11.e3 Nf5 12.Nge2 Qh6–/+) 11...0–0 (11...Nf5 12.Bb2 Qh5 13.bc6 bc6 14.Nf3–+) 12.0–0–0? (12.e3 Nf5 13.Nge2 Nd7–/+) 12...e3 (better is 12...Nf5 13.e3 Bd1 14.Kd1 Qg4 15.Nge2 Qh5–+) 13.Qe3–/+ Bf5 (13...Nf5 14.Qf2+=) 14.h4 h5 15.g4 (15.Nf3!?+=) 15...Bg4–/+ 16.Bg2 Nf5 17.Qf2 Re8 18.Rd3 Nd7 19.e4 de4 20.Be4 Re7 (20...Qh6!?–/+) 21.Nf3+= Rae8 (21...Bf3!? 22.Qf3 Rae8=) 22.Ne5+= Be5 23.de5 Qe6 24.Kb2 1–0. Wall,Bill – Meniscus, chess.com, 2009.

3.Bb2 Qg5 4.Nf3= Qd8 (4...Qe7 5.Ne5 Qb4 6.Ra2=) 5.Ne5+= Bb4? (Better is 5...Nf6+=) 6.Nc6!+– Nc6 (6...bc6 7.Bg7) 7.Bg7 Nf6 8.Bh8 Bf5 9.e3 Qe7 10.c3 Bd6 11.Bb5 a6 12.Bc6 bc6 13.d3 Kd7 (13...Rb8 14.h3+–) 14.Bf6 Qf6 15.g4 Bg6 16.h4 h6 17.h5 Bh7 18.Rh3 Rb8 19.f4 Rb2 20.f5?? Qe7?? 21.Nd2+– Qg5 22.Qf3 Qf6 23.d4 c5? 24.Qd5 cd4 25.Ne4 Qg7 26.0–0–0 Rg2 27.Nd6 cd6 28.Qg2 dc3 29.Qb7 1–0. lucya (2160) – Jennifer66103, GameColony.com, 2002.

3.c3 Bd7 4.d4 b5 (better is 4...e4=+) 5.de5+/– ba4 6.Qd5 Ne7?? (better is 6...Nc6+/–) 7.Qa8+– Nbc6 (7...c5 8.bc5 Qc7 9.Qe4+–) 8.Qd8 Nd8 9.Nd2 Nd5 10.Bb2 Be7 11.e3 0–0 12.b5 c6 (12...Nb6 13.Ngf3+–) 13.Ra4 cb5 14.Ra7 Bc6 (14...Be8 15.c4 Bc5 16.Ra8+–) 15.e4 Nf4 (15...Bc5 16.ed5 Ba7 17.dc6 Nc6 18.Ngf3+–) 16.Re7 Nde6 17.Ngf3 Be4 18.Ne4 Nd5 19.Rb7 b4 20.cb4 Nd8 21.Rb5 Nc7 22.Rb8 Nce6 23.b5 Nc5 24.Nc5 Nb7 25.Rb7 Rb8 26.Rb8# 1–0. marekt – stoysentado, Yahoo, 2005.

3.c3 e4 4.e3 a6 5.b5 ab5 6.Bb5 c6 7.Be2 Nf6 8.Ba3 Ba3 9.Na3 Be6 10.Qb3 0–0 11.Qb7 Ra6?? (better is 11...Ra4 12.d4 ed3 13.Bd3 Nbd7–/+) 12.Ba6+– Bc8 13.Qb8 Ba6 14.Qd8 Rd8 15.Nc2 c5 16.Rb1 Bd3 17.Rb2 (better is 17.Kd1 Ra8+–) 17...d4 (17...Ra8 18.Na1+–) 18.Na3 (better is 18.cd4 Bc2 19.Rc2 cd4 20.ed4 Kf8+–) 18...dc3 19.Rc2 Bc2 20.Nc2 cd2?? (better is 20...Rd2 21.Ne2 Rc2–+) 21.Kd1+/– c4 22.Ne2 Ng4 23.Rf1 Nh2 24.Rh1 (better is 24.Rg1+/–) 24...Ng4= 25.Rf1 f5?? 26.Ncd4+– Ra8 27.Kd2 Ra4+/– 28.Nc3 Ra5 29.Ke2 Ne5? 30.Rb1?? Ra8? 31.Nf5+– Rf8 32.Ne7 Kf7 33.Rb7 Rd8 34.Ne4 Ke8 35.Nf5 Nf7 36.Ne7 Rd7?? 37.Rd7+– Kd7 38.Nd5 Kc6 39.Nb4 Kb5 40.Nc2 g5 41.g4 Ne5 42.Ng5 Ng4 43.Nh7 1–0. maddoxdb – marblehead1, gameknot.com, 2012. (=1.c3 e5 2.b4 d5 3.a4 e4)

3.c3 Be6 4.Qc2 Bd6–/+ 5.d3 Ne7 6.Bg5 f6 7.Bd2 0–0 8.Nf3 a6 9.g3 c6 10.Bg2=+ Nd7 11.0–0 Nf5 12.Na3 Qe7 13.Rfc1 d4 14.c4 Bb4–/+ 15.Bb4 Qb4 16.Rcb1 Qe7 17.Rb7 Nh6 18.c5 Qc5–/+ 19.Nd2 Qc2 20.Nc2 Nc5 21.Rb6=+ Bd5 22.Bd5 cd5 23.Nb4 Rfd8 24.Nc6 Rd7 25.a5 e4 26.de4 de4–/+ 27.Nb4 e3 28.fe3 de3 29.Nf3 Rd2?? 30.Nd2+/– ed2 31.Rd6 Ne4+= 32.Rd4 f5= 33.Nc6 Kf7 34.Ne5+/– Ke6 35.Nf3 (35...Rc8 36.Nd2+/–) 1–0. lmagaya – ramesis (2130), net–chess.com, 2005.

3.c3 Nf6 (--> 1.b4 Nf6 2.a4 d5 3.c3 d5).

3.c3 Bg4 4.a5 a6 5.h3 Bh5 6.g4 Bg6 7.Qb3 e4 8.Bg2 c5 (better is 8...h5!?+=) 9.bc5= Bc5 10.e3 (10.Ba3 A) 10...Qa5?? 11.Qb7 Qb6 12.Qc8 (12.Qa8?! Bf2 13.Kd1 Bg1+–) 12...Qd8 13.Qd8 Kd8 14.Bc5+–; B) 10...Nd7 11.Qb7 Rb8 12.Qa6 Rb1 13.Rb1 Ba3=) 10...b5 11.Ne2 (11.ab6 A) worse is 11...Qb6 12.Qd5 Ra7 13.Qc4+= (13.Be4? Nf6 14.Qa2 Be4–+); B) 11...Bb6 12.d3 ed3 13.Qd5 Qd5 14.Bd5 Ra7=) 11...h6 12.Nf4 Ne7 13.Ng6 Ng6 14.Ba3 Be7 (14...Qa5?? 15.Qd5 Ra7 16.Qc5+– (16.Bc5?! Qa1 17.0–0 Rd7+–)) 15.Be7 Ne7 (15...Qe7? 16.Qd5 Ra7 17.Qe4+–; 15...Ke7?! 16.f3 Nh4 17.0–0 Ng2 18.Kg2+=) 16.Na3 0–0 (16...Qa5?! 17.f3 ef3 18.Bf3=) 17.Nc2 Nbc6 18.Nd4 Na5 19.Qb4 Nc4 20.Bf1 Ne5 21.Qa3 Qd7 22.Be2 N7g6 23.Nf5 Nc4 24.Bc4 dc4 25.Qc5 a5 26.0–0 a4 27.Nd6 (27.Nd4–+) 27...Qe7 28.Qd4 (28.Qb4 Ne5–+) 28...Rad8 (better is 28...Nh4 29.Qd5 Qd7–+) 29.Nf5 Qf6 (better is 29...Qe5 30.Qe5 Ne5–+) 30.Qf6–/+ gf6 31.Nh6 Kh7 32.g5?? Rd2 33.Rab1 Rd3 34.Rfc1 Rd5 35.h4 Nh4 36.Kf1 Rg5 37.Nf7 Rf7 38.Rb4 Nf3 39.Ke2 Rd7 40.Rcb1 Rd2 41.Kf1 Rg1 0–1. maddoxdb – nunoragu, gameknot.com, 2011. (=1.c3 d5 2.b4 e5 3.a4 Bg4)

3.c3 g6 4.d4 Bg7 (4...e4 5.Qb3=+) 5.de5 Be5 6.Nf3 (6.e4 Ne7=) 6...Bg7 7.Bb2 (7.Bg5 Ne7=) 7...Ne7 8.e3 0–0 9.Be2 b6 (9...Nbc6 10.b5 Ne5 11.Nbd2=) 10.0–0+= c5 11.Qd2 Be6 12.b5 Nf5 13.c4 dc4 14.Bg7 Kg7 (14...Ng7 15.Qc2+=) 15.Qc2 Nh4 (better is 15...a6!? 16.Na3 ab5 17.Nb5 Nc6+=) 16.Nh4 Qh4 17.Bf3 Nd7 18.Ba8 Ra8 19.Nd2 Ne5 (19...a6 20.ba6 Kg8 21.f4+–) 20.a5 (20.Qc3 Qf6 21.Ne4 Qf5+/–). pierre – H GHAZAL, ChessHere.com, 2005.

3.c4 dc4–/+ 4.Qc2 Nc6 5.Qc4 (5.Na3 Bb4 6.Nc4 Nd4–+) 5...Be6 6.Qc2 Nd4 7.Qd1?? (better is 7.Qb2–+) 7…Bb3 0–1. Campbell,L – Blaine, Ohio, 1982.

3.d3 Bb4 4.c3 Bd6 5.e4 –+.

3.d3 Nf6 4.f4? Nc6?? 5.fe5? Ne5–/+ 6.d4 Bb4 7.c3–/+ Ba5 8.de5+= Ne4 9.Qd4 (9...Bb6 10.Qb4 Qh4 11.g3 Bf2 12.Kd1 Bg3 13.Bg2 Nf2 14.Kc2 Qb4 15.cb4 Be5 16.Bb2 Bf5 17.Kb3 Bb2 18.Kb2–+). emerica – nita, net–chess.com, 2002.

3.Nf3 Bd6 4.Bb2 (--> 3.Bb2 Bd6 4.Nf3).

3.Nf3 e4–+ (3...Bb4?! 4.Ne5 Nf6 5.e3+=) 4.Nd4 Bb4 5.c3 Bd6 6.d3 Nf6 7.Bg5 h6 8.Bf6 Qf6 9.de4 de4 10.e3 Qg6 11.g3 (11.Nd2 0–0–/+) 11...0–0 12.Bg2 Nd7 13.Qc2 Re8 14.Nd2 Nc5 15.0–0 c6 16.N2b3 (16.f3 Bd7–/+) 16...Nb3 17.Qb3 c5 18.Nb5 Be5 19.Rad1 a6 20.Na3 Qc6 (20...Bg4 21.Rd2–+) 21.Qc4 Bf5 0–1. goffredob (1690) – fleet_commander, gameknot.com, 2008. (=1.a4 e5 2.b4 d5)

3.Ba3 Nf6

4.a5 c6 5.Nf3 Bd6 6.c3 (6.e3 Bg4–/+) 6...0–0 (6...e4 7.Nd4–/+) 7.e3 (7.d3 Nbd7–/+) 7...Bg4 (7...e4 8.Nd4–/+) 8.h3 Bh5 9.g4 Bg6 10.Be2 (10.d3 e4 11.Nh4 Qe8=+) 10...Ne4 (10...b5 11.d3–/+) 11.h4 (11.d3 Ng5=+) 11...f6?? (better is 11...Nf6–/+) 12.h5?? (12...Bf7 13.Nh4=+; better is 12.d3+/–). dmertz – pokerstars, net–chess.com, 2005.

4.a5 Bd6 5.b5 –/+.

4.b5 c5 5.bc6 Nc6 6.c3 Ba3 7.Ra3 0–0 8.e3 d4 9.h3 de3 10.de3 Qa5 11.Nf3 e4 12.Nfd2 Rd8 13.Qb3 Qg5 14.g3 Ne5 15.Bg2 Nd3 16.Kf1 Qf5 17.f4 ef3! 18.Nf3 (18.Nf3 Nc1 Combination; 18.Bf3 Qe5 Combination) 18...Ne5 19.g4 (19.e4 Ne4 20.g4–+) 19...Qd3 20.Kf2 Ne4 21.Kg1 Qe3 22.Kh2 Nf3 23.Bf3 Qf3 24.Kg1 Qf2 0–1. Krecak,Slaven Finer – Filgueira,Horacio, CL5–2009.19.09, 2009.

4.Nf3 Bd6 –/+.

3.Bb2 Bb4

4.Be5 Nc6 5.Bg7 Nf6 6.Bh8 Bf8 7.Nf3 Bg4 8.Nc3 Qd6 (8...Ne4+–) 9.Nb5 Qd7 10.Bf6 Bf3 11.gf3 Qf5 (11...Be7 12.Bb2+–) 12.Nc7 Kd7 13.Na8 Qf6 14.Bh3 Kd8 15.c3 Ne7 16.Rg1 (16.Qb1 Qh6 17.Bg4 b6+–) 16...Qh4 (16...Qd6 17.Qb3 Qh2 18.Rg3+–) 17.Rg3 Ng6 18.Qb3 Nf4 19.Qb7 Bd6 20.Qd7# 1–0. pierre – ravi12346, internet, 2007.

4.Be5 Qg5 5.Nf3 Qg6 6.Bc7 Nf6 7.c3 Bc5 8.d4 Be7 9.Ne5 Qg5 10.Nd2 Bg4? (better is 10...0–0+/–) 11.Qb3 (< 11.Ng4 Qg4 12.e3 Qc8+/–) 11...0–0? (11...Bc8 12.Bb8 Rb8+–) 12.Qb7 (12.Ng4?! Qg4 13.Qb7 Nbd7+–) 12...Nbd7 13.Nc6 Ne4 14.Ne4 de4 15.h4 Qf6 16.Be5 Ne5 17.de5 Qe6 18.Ne7 Kh8 19.Qe4 f5 20.Qb4 Rab8? 21.Qd6 Qb3 22.Qc5 Rfd8 23.f3 (23...Qb2 24.Ra3 (24.fg4?! Qa1 25.Kf2 fg4+–) 24...Qd2 25.Kf2+–) 1–0. Fritz 8 – NN, 2005.

4.Be5 Nf6

5.c3 Be7 6.e3 Nbd7 7.Bf4 c5 8.Bb5 a6 9.Be2 0–0 10.a5 Nb8 11.Nf3 Nc6 12.Qa4 Nh5 13.Be5 f6 14.Bg3 Bf5 15.Bh4 Qa5 (15...g5 16.g4 Bb1 17.Rb1 Qa5 18.Qc2 gh4 19.gh5=) 16.Qc6= bc6 17.Ra5 Bb1 18.g4 g5 19.gh5 (19.Ba6? Bd3! 20.Bd3 Ra5–+) 19...gh4 20.Rg1 (< 20.Ba6 Bd3 21.Bd3 Ra5–/+) 20...Kh8 21.Ra6 Bc2 22.Ra8 Ra8 23.d3 (23.Bd1!? Be4 24.Nh4=) 23...Ra1 24.Kd2 Ra2 25.Ke1 (25.Nh4?? Bd3 26.Kc1 Re2–+) 25...h3 26.Kf1? (26.Rg3 Bd8–/+) 26...Bd6?? (26...d4 27.Ne1 dc3 28.Nc2 Rc2 29.Bd1–+) 27.c4? (better is 27.Ne1–/+) 27...Ra1–+ 28.Ne1 Bh2 29.Rh1 Bc7 30.f4 Ba5 31.Kf2 dc4 32.dc4 (32.Rf1 h2 33.Kg2 Re1 34.Re1 Be1 35.dc4 Be4 36.Kh2–+) 32...Be1 33.Re1 Re1 34.Ke1 (34.Bf3 Rc1 35.Kg3–+) 34...Be4 35.Bd3 Bd3 36.Kf2 Bc4 (37.e4 Be6–+) 0–1. market (2145) – HighRollers (2175), GameColony.com, 2002.

5.Nf3 0–0 6.e3 Nc6 7.Bb2 Re8 8.Be2 Bf5 9.0–0 h6 10.c4 dc4 11.Bc4 Qd6 12.Nc3 a6 13.d4 Rac8 (13...Rad8!?+=) 14.Qb3= Re7 (14...Nd8 15.Ne5 Be6 16.Rfd1=) 15.Ne5+= (15.Ne5 Be6 16.Nc6 bc6 17.Be6 Re6 18.Rab1+=). Tihomir Glowatzky – ST_KAOURAS, ChessWorld.net, 2008.

5.e3 0–0

6.Qf3 Nbd7 7.Bf4 =+.

6.Nf3 c5 7.Bb2 Nc6 8.Be2 Qd6 9.0–0 Rd8 10.d3 Re8 11.c3 Ba5 12.Nbd2 Bc7 13.d4 b6 14.c4 cd4 15.ed4 Bb7 16.Re1 Qd7 17.Qc2 Rac8 18.c5 Ne4 19.Rab1 f5 20.Ba1 Re7 21.Nf1 Kh8 22.Nh4 Rce8 23.a5 Na5 24.f3 Nf6 25.Bb5 (25.Nf5? Re2 26.Re2 Re2 27.Qe2 Qf5–+) ½–½. aspasio (2770) – asoka (2860), net–chess.com, 2013.

6.Nf3 c5 7.c3 Ba5 8.d4 Nc6 9.dc5 Ne5 10.Ne5 Qe7 11.Qd4 Ne4 (11...Bf5 12.Bd3 Bc7 13.Nf3 Bd3 14.Qd3 Qc5 15.0–0=) 12.Nd3 (12.Qd5?? Nc3 13.Nc3 Bc3 14.Ke2 Ba1–+) 12...Be6 13.f3 Nf6 14.Nd2 Nd7 (14...Rfc8 15.Nb3 Bc7 16.Kf2=) 15.Nb3 Bd8 16.Be2 Qg5 17.Nf4 Bf6 18.Qb4 (18.Ne6? fe6 19.Qd2 Qg2–+) 18...Qe5 19.Kf2 Qc3 (19...Rfe8 20.Rhd1= (20.Qb7? Rab8 21.Qa7 Rb3–+; 20.Ne6?! Qe6 21.e4 de4 22.fe4 Be5=+)) 20.Qc3+= Bc3 21.Rad1 Nf6 22.Nd4 Bd7 23.Bb5 Rfd8 24.Rd3 Bb4 25.c6 bc6 26.Nc6 Bc6 27.Bc6 Rac8 28.Nd5 (< 28.Bd5 g5 29.Bf7 Kf7 30.Rd8 Rd8–+) 28...Nd5 29.Bd5 (< 29.Rd5 Bd6 30.Rc1 Bg3 31.Kg3 Rd5 32.Bd5 Rc1=+) 29...Rc2 30.Kg3 Kf8 31.Rb1 a5 32.Rbd1 g5 (32...Rd6 33.Be4 Rd3 34.Bd3+/–) 33.e4 Bd6 34.Kh3 Be5 35.Rb3 (35.Rb1+/–) 35...Rb8? (better is 35...Rd6!? 36.g3 Rh6 37.Kg4 Rch2+/–) 36.Rb8+– Bb8 37.Bb3 (37…Bb3 g4 38.Kh4+–) 1–0. lucya (2205) – mihmih (1915), GameColony.com, 2002.

6.Nf3 Nc6 7.Bb2 Bg4 8.Be2 Re8 9.0–0 Qe7 10.Nc3 Rad8 11.Rb1 d4 12.Na2 Bc5 13.ed4 Qe2 14.Qe2 Re2 15.dc5 Bf3 16.Bf6 gf6 17.Rb7 Bd5 18.Nc3 Rd2 19.Rc7 Nd4 20.Re1 Bc6 21.h4 Rc2 (21...Nc2 22.Ree7 Nb4 23.Rf7–/+) 22.Ne4 Ba4 23.Ra7 Bc6 24.Nf6 Kg7 25.Nh5 Kg6 26.Nf4 Kf6 27.Ree7 Rf8 (27...Rc5? 28.Rf7 Ke5 29.Nd3 Kd5 30.Nc5 Kc5 31.Rh7+–) 28.Nh5 Kf5 29.Ng3 Kg6 30.Re5 White prepares the advance h5 30...Ne6 31.h5 Kf6 32.Rf5 Kg7 33.Ra6 Rc8 34.Ra7 Rc7 35.Rc7 Nc7 36.f3 Ne6 37.Re5 h6 38.Ne4 Be4 39.Re4 Nc5 40.Rd4 Ne6 41.Re4 Kf6 42.Kf1 Kg5 43.Re5 Kh4 44.Rf5 Kg3 45.Rf7 Rc1 (45...Rg2?! 46.Rf6 Rf2 47.Ke1+=) 46.Ke2 Rc3?? (better is 46...Rc5–+) 47.Rf6–/+ Nf4 (47...Nd4 48.Kd2 Rc6 49.Rg6 Rg6 50.hg6–+) 48.Kd2+= Rd3 49.Kc1 Nh5 50.Rg6 Kf2 51.Rh6 Nf4 (worse is 51...Kg2 52.Rh5 Rf3 53.Kd2=) 52.Rf6 Kg3 53.Kc2 Rd8 (53...Kg2?! 54.Rf4 Rf3 55.Re4=) 54.Kb3 Rc8 55.Ka4 Ra8 56.Kb5 Rb8 57.Rb6 Rf8 58.Kc6 Kg2 59.Rb3 Rc8 60.Kb5 Rb8 61.Kc4 Rb3 (61...Rd8!?–/+) 62.Kb3= ½–½. miehnekort – h_burma, Yahoo, 2005.

6.Nf3 Re8 7.Be2 c5 8.0–0 Nc6 9.Bf4 Bf5 10.c3 Ba5 11.d3 Bc7 12.Bc7 Qc7 13.Nbd2 h6 (13...d4 14.cd4 cd4 15.e4=+) 14.Re1 b6 15.Qb3 Rad8 16.Rad1 Qd6 17.Qb5 Bd7 18.Qb2 Na5 19.Qc2 Qc6 20.Ra1 Bf5 21.Nb3 Nb7 22.Qb2 Qc7 23.a5 ba5 24.Qa3 Re6 25.Nbd2 (25.Na5? Ra6–+) 25...Rde8 26.Qa2 Bg4 27.h3 Bh5 28.Qa4 Bg6 29.Nh4 Bh7 30.Qa2 Qe7 31.Nhf3 Qd6 32.Qa4 Qc7 33.Ra2 Nd7 34.Qh4 Bf5 35.Rea1 Bg6 36.Ra3 a6 37.Qa4 Nb6 38.Qh4 a4 39.d4 Nd6 40.dc5 (40.Ba6 c4 41.Ne5 Qa7 42.Ng6 fg6 (42...Qa6?! 43.Nf4=) 43.Bc4 Ndc4 (43...Nbc4?! 44.Ra4 Qf7 45.Nc4 Nc4 46.Qg3–+) 44.Nc4 dc4–+ (44...Nc4?! 45.Ra4 Qf7 46.Qg3–+)) 40...Qc5 41.Nd4 Re5 42.Ba6 Bh7 43.Be2 Be4 44.Bd1 Rg5 45.g3 Ra8 46.Kh2 (46.Ba4 Ra4 47.Ra4 Na4 48.Ra4 Qc3=) 46...Ndc4 47.Nc4 Qc4 48.Bh5 Bg6 49.Bf3 Re5 50.Qf4 Rae8 51.Be2 Bd3 52.Bd1 Qc8 53.Ba4 Rh5 54.g4 (54.Be8?? Qh3 55.Kg1 Qh2) 54...Re4 55.Qe4 Rh3 56.Kh3 de4 57.Bc6 Kh7 58.Ra5 Nc4 59.Ra8 (59.Rb5 Kg6+=) 59...Qc7 60.R8a7 (60.Be8!?+=) 60...Bf1=+ 61.Rf1 Qa7 62.Be4 g6 63.Rc1 Qd7 64.Bc6 Qc8 65.Bb5 Ne5 66.f3 h5 67.Be2 hg4 68.fg4 Kh6 69.Kg3 Qc7 70.Kg2 unclear. marekt – djw777, ChessWorld.net, 2004.

5.e3 Nc6

6.Bb5 Bd7

7.Bc6 Bc6 8.Nf3 0–0 9.0–0 Re8 10.d3 Nd7 (10...Bc5 11.Nc3=+) 11.Bd4 (11.c3 Ne5 12.cb4 Qd6 13.Ne5 Re5=) 11...Qe7 12.a5 a6 (12...Bd6 13.Nc3=) 13.Nbd2 Qe6 (13...Bb5 14.c3 c5 15.Re1 Ba5 16.Ra5=+) 14.Qb1 Bd6 15.Qb2 (15.Re1 Nc5=) 15...Qh6 (15...f6 16.Rab1=+) 16.Rfe1 (16.Rab1 Re7=) 16...Re6 17.Rab1 (17.Rad1 Nf6=) 17...Qh5 (17...Rae8 18.Qc3=+) 18.Nf1 (18.Qc3 Rae8=) 18...Rd8 (18...Rae8 19.Ng3 (19.Bg7? Rg6–+) 19...Qg4 20.h3=) 19.Ng3 (19.Bc3 Qg6 20.Nd4 Ree8=) 19...Bg3 20.fg3 f6 (20...Rde8 21.Rf1=) 21.Ba7 Qe8 22.Qd4 Ra8 23.g4 Qe7 24.Nh4 g6 25.Kh1 Kg7 26.g5= Bb5 27.gf6 Rf6 28.c4 dc4 29.dc4 Bc6 30.e4 Kg8 31.Nf3 Re6 The pressure on the isolated pawn grows 32.Rbd1 Re8 33.Nd2 b6 34.ab6 cb6 35.Nf3 Re4 36.Re4 Qe4 37.Bb6 Nb6 38.Qb6 Qc4 39.Nd4 Qd3 40.Rg1 Bd5 41.Qc5 Qe4 42.Qc3 Rf8 43.Qd2 Qf4 44.Qd3 a5 45.Nc2 Rf5–+ Black terminates the opponent with strong threats 46.Ne3 Rh5 47.Nf1 a4 48.Qa3 Re5 49.Qd3 Qf2 50.Qg3 Qg3 51.Ng3 a3 52.Ra1 a2 53.h3 (53.Rd1 h5–+) 0–1. Trkn – guest7111, ICC, 2005.

3.Bb2 d4

4.Nf3 Qd6 5.c3= g6 (5...Nf6 6.Na3 Qe7 7.cd4=) 6.cd4 (6.Na3 dc3 7.Bc3+=) 6...Qb4 (better is 6...e4!? 7.Ng5 Qd5=) 7.Ba3+/– Qb6 (7...Qa5 8.Bf8 Kf8 9.Ne5+/–) 8.Bf8 (8.de5 Nc6+/–) 8...Kf8 9.de5 Ne7 (9...Nc6 10.Nc3+/–) 10.d4 Nbc6 (10...Kg7 11.Nbd2+/–) 11.e3 Be6 (11...Kg7 12.Nbd2+–) 12.Bd3 (12.Nbd2 Qa5+–) 12...Ke8 (12...Rd8 13.Nbd2+–) 13.0–0+– Kd7 (13...Qb3 14.Bc2 Qb6 15.Nc3+–) 14.Nbd2 Rad8 (14...Nb4 15.a5 Qc6 16.Rc1+–) 15.Rb1 Nb4 16.Bb5 (16.Nc4 Bc4 17.Bc4 h6+–) 16...c6 17.Rb4 cb5 (17...Nd5 18.Rb3 cb5 19.e4+–) 18.Rb5 (18.ab5?! Nd5 19.Rb3 f5+–) 18...Qc6 (18...Qc7 19.Qb1 b6 20.Rc1+–) 19.Qb1 (19.e4 Ke8+–) 19...b6 20.Rc1 Qa8 21.a5 (21.e4 Ke8+–) 21...Nd5 (21...Rc8 22.Rc8 Nc8 23.d5+–) 22.ab6 ab6 (22...Nb6 23.e4+–) 23.Nc4 (23.e4 Nf4 24.Rc2 Rb8+–) 23...Rb8 24.Nb6 (24.Nb6 Nb6 25.Rb6 Rb6 26.Qb6+–) 1–0. Wall,Bill – DonnB, internet, 2001.

4.Nf3=+ Nd7 5.b5=+ Bd6 6.e3 de3 7.de3 Ngf6 8.Nbd2 Bb4 (8...Qe7!?=+) 9.Ne5+= Ne5 10.Be5 Bd2? (better is 10...Ne4! 11.c3 Nc3+=) 11.Qd2+– Qd2 12.Kd2 Ne4 (12...Ng4!? 13.Bg3 Bf5+–) 13.Ke1+– f6 14.Bc7 0–0 (14...Be6 15.a5+–) 15.Bc4 Kh8 16.a5 Re8 (16...Bf5 17.Bd5 Rac8 18.b6+–) 17.a6 Re7 18.Bd5 (18...Nc5 19.Bg3+–) 1–0. marekt – spazmare, ChessWorld.net, 2003.

4.Nf3 Bb4

5.Ne5= Qd5 6.Nf3+= Bg4 (6...Nc6!?+=) 7.Nd4–/+ Bc5?? (Better is 7...Nf6–/+) 8.Nb5+– Qc6 (8...Qd7 9.Bg7 a6 10.d4+–) 9.Bg7 a6 10.N5c3 (Worse is10.Bh8 ab5 11.f3 Bd7 12.ab5 Qb6+–) 10...Bf2 (10...Nf6 11.Bh8 Qb6+–) 11.Kf2 Qc5 12.Ke1 Qg5 (12...Nd7 13.Bh8 0–0–0 14.Ne4+–) 13.Bh8 f5 (13...Nd7 14.Ne4 Qe7 15.Nf2+–) 14.Nd5 f4 (14...Qd8 15.Nbc3 Nd7 16.g3+–) 15.Nc7 Kd7 16.Na8 Qh4 17.g3 fg3 18.Bg2 gh2 19.Kf1 Nf6 20.Qe1 Qh5 21.Bf6 Nc6 22.Qg3 Qf5 23.Ke1 1–0. lucya (2160) – excmo (1795), GameColony.com, 2002.

5.Ne5 Qd6 6.Nd3 Ba5 7.Na3 Be6 8.Nb5+/– Qd8 9.Nd4 Nf6 10.Ne6 fe6 11.c3 0–0 12.Qb3 Nd5 13.e4 Nf6 14.Nc5 Bb6 15.Ne6 Qe7 16.Nc7 Kh8 17.Na8 Qe4 18.Be2 Bf2 19.Kf1 Ng4 20.Qd1 Be3 21.Bf3 Qd3 22.Qe2 Qd2 23.Rd1 Qb2 24.Qb2 Bb6 25.Nb6 Ne3 26.Ke2 Nd1 27.Rd1 (27...h6 28.Nd7 Re8 29.Kf2+–) 1–0. NN – NN, Yahoo, 2005.

5.Ne5 Be6 6.c3 (6.Nf3 Nc6=) 6...dc3 7.Nc3 Nf6 8.g3 Nbd7 9.Nd3 Ba5 10.Bg2 Rb8 (10...c6 11.Nf4=) 11.Ba3 Nb6 12.Bc5 (12.Nc5 Bc8=) 12...Bc3 (12...Nfd7 13.0–0=) 13.dc3+= a6 14.a5 Nbd5 (14...Nc4+=) 15.0–0 (15.Bd4!?+/–) 15...Nc3= 16.Qc2 Nb5 17.Rad1 Qc8 18.Nf4 Bf5?? (better is 18...Nd7+=) 19.Qb2+– b6?? (19...Be6 20.Qe5 Nd6 21.Rd6 cd6 22.Qd6 Qd8 23.Ne6 Qd6 24.Bd6 Kd7 25.Bb8 Ke6+–) 20.Qe5 Be6 21.Bc6 Nd7 22.Ne6 fe6 23.Qe6 Kd8 24.Qe7 1–0. pierre – jogevit, internet, 2009.

5.Ne5 Qf6 6.Bd4+= c5 7.Bb2+/– Nc6 8.Nc4 Qg6 9.Nd6 Qd6? (better is 9...Kf8 10.Nc8 Rc8+/–) 10.Bg7+– f6 (10...Nd4 11.Bh8 Bf5 12.Ra2+–) 11.c3 Ba5 12.Bh8 (12...Nge7 13.Qc2+–) 1–0. Trkn – guest95, ICC, 2004.

5.Ne5 Qf6 6.Bd4+= Bd6 7.Nf3 Qg6 8.Na3 +/–.

5.Ne5 Qf6 6.Bd4 Qf4? (better is 6...Bd6 7.Nf3 Qh6+/–) 7.e3+– Qe4 8.Nd3 Nc6 (8...Bf8 9.Nf4 c5+–) 9.Bg7 Nf6 (9...Bg4 10.Qc1+– (10.Bh8?! Bd1 11.Kd1 0–0–0=)) 10.Bh8 Nd5 (10...Ke7 11.Qc1 Bf5 12.Bf6 Kf6 13.Qb2 Ke7 14.Nc3 Bc3 15.Qc3+–) 11.Na3 (11.c4 Qc4 12.Nb4 Qb4+–) 11...Bf5 (11...Bd6 12.Nb5 Bf5 13.Nd6 cd6 14.Bb2+–) 12.c4 Nc3 (12...Nde7 13.Nb4 Nb4+–) 13.Qb3 a5 14.Bc3 Kd8 15.Nf4 (15.Nf4 Bc3 16.Qc3+–) 1–0. pierre – tillvext, internet, 2009.

5.Ne5 Nf6 6.c3 dc3 7.Nc3 0–0 8.Qb3 a5 9.Qc4 Be6 10.Qb5 b6 11.Rc1 Nd5 12.e3 Nc3 13.Bc3 Bc3 14.Rc3 Qd5 15.Qd5+– Bd5 16.Rc7 Na6 17.Rd7 Nb4+/– 18.d4 Bb3 19.Bb5 Nc2? 20.Kd2 Na3 21.Bc6 Rac8 22.Rc1 f6+/– 23.Nd3 Nc4 24.Kc3+– Rc6 25.Kb3 Nd2 26.Kb2 Nc4 27.Ka2 Rfc8? 28.d5 Rc5 29.Nc5 Rc5 30.d6 Rd5 31.Rc4 (31...Rd2 32.Kb3+–) 1–0. NN – NN, Yahoo, 2005.

5.Ne5 Nf6!? = 6.e3 de3 7.fe3 =.

5.Ne5 Nh6 6.c3 Bc5 7.Qb3 (7...Qd6 8.Qc4=). marekt – AmericanRusky, ChessWorld.net, 2005.

5.Ne5 Nh6 6.Nd3 Nc6 7.e3 =.

4.Nf3 Bd6

5.Na3= f6 (5...Be6 6.c3 Nf6 7.cd4+=) 6.c3 c5 (6...dc3 7.dc3 e4 8.Nd2=) 7.bc5 (7.Nb5 cb4 8.cd4 Nc6 9.de5 Be5+=) 7...Bc5 (7...dc3!? 8.dc3 Bc5 9.Qd8 Kd8 10.Rd1 Ke7=) 8.cd4+/– ed4 (8...Bd4 9.Nd4 ed4 10.Nb5+/–) 9.Qc2 Nc6?? (better is 9...Ba3 10.Ra3 Nc6+/–) 10.Qc5+– Nge7 11.Nd4 0–0 (11...Nd4 12.Qd4 Qd4 13.Bd4+–) 12.e4 Nd4 (12...Bd7 13.Nab5 b6 14.Nc6 Nc6 15.Qd5 Kh8 16.Nd6+–) 13.Qd4 Be6 (13...Bd7 14.Nb5+–) 14.Qd8 Rfd8 15.Bc4 (15.d4!? Bb3 16.Nc4 Rac8+–) 15...Bc4 16.Nc4 Rac8 (16...Ng6 17.Rb1+–) 17.Ne3 h6 (17...Nc6 18.Rc1+–) 18.d4 a6 (18...Kf7 19.Kd2+–) 19.a5 (19.Kd2 Nc6 20.Rhc1 Kf7+–) 19...Nc6 (19...Kf7 20.Kd2+–) 20.d5 Nb4 (20...Ne7 21.Ba3 Rd7 22.Ke2+–) 21.Kd2 f5 (21...Kf7 22.Rhc1 Nc6 23.f4+–) 22.Ra4 (22.Ra4 f4 23.Rb4 fe3 24.Ke3+–) 1–0. pierre (2185) – ashoka_theking (1665), internet, 2007.

5.c3 dc3 6.Nc3 Nd7 7.Nb5= b6 (7...Bb4 8.Ne5 Nc5 9.Nf3=) 8.Rc1 (8.Qc2 Bb7 9.Rc1 a5+=) 8...Bb7 (8...a6 9.Nd6 cd6 10.e3=) 9.Qc2+= c5?? (Better is 9...Ke7+=) 10.Nd6+– Ke7 11.Nb7 Qc7 12.bc5 Nc5 (12...Qb7 13.c6 Qc8 14.cd7 Qc2 15.Rc2+–) 13.Nc5 f6 14.Qe4 Nh6 15.Nd3 Qd6 16.Qb7 Ke6 17.Rc6 1–0. NN – TrencherKnight, internet, 2002.

5.c3 dc3 6.Bc3 Qe7 7.Na3 Bb4 8.Bb4 Qb4 9.Ne5 Nf6 10.e3 a6 (10...0–0 11.Qc2=) 11.Nc2 Qd6 12.Nc4 Qd8 13.d4 Be6 14.Bd3 Nc6 15.0–0 0–0 16.Rb1 b6 17.Qf3 Qd5 18.e4–/+ Qg5 19.d5+– Nd5 20.ed5 Bd5 21.Qh3 Be6?? 22.Qh7 1–0. fajgo – tikbalang, internet, 2002.

5.c3 Nf6 6.cd4 e4 7.Ne5=+.

5.c3 Bg4 6.cd4+= Bf3 (6...e4 7.Ne5 Be6 8.Qc2=) 7.de5–/+ Bg2?? (Better is 7...Bb4 8.ef3 Ne7–/+) 8.Bg2+– Bb4 (8...Bf8 9.Bb7 Nd7 10.Ba8 Qa8 11.Rg1+–) 9.Bb7 c6 (9...Nd7 10.e6! Nc5 11.Bg7 Nb7 12.ef7 Kf7 13.Bh8 Qd5+–) 10.Ba8 Qd5 (10...Ne7 11.Qc2+–) 11.Rg1 g6 (11...Ne7 12.a5 0–0 13.Qa4+–) 12.Na3 Bc5 (12...Qe6 13.Nc2 c5 14.Nb4 cb4 15.a5+–) 13.Nb5 (13.Qc2 Bb6+–) 13...Bb6 (13...Qd8 14.Qc2 Bf2 15.Kf2 cb5 16.ab5+–) 14.Nd6 Kd7 15.a5 Bf2 16.Kf2 Qe6 17.Bd4 Ne7 18.Rb1 1–0. market (2235) – fub (1750), GameColony.com, 2002.

5.Na3 Nf6

6.Nc4= Qe7!? =.

6.Nc4 0–0

7.Nce5+= Bb4 8.Bd4 c5 9.Rb1 +=.

7.Nce5+= Be5 8.Ne5 a5 9.b5 +=.

7.Nce5+= Be5 8.Ne5 Ne4 9.e3+/– Nf2 (9...de3!? 10.de3 Qh4+/–) 10.Kf2+– de3? (better is 10...Qf6 11.Qf3 Qe5 12.Bd4 Qd6+–) 11.de3 Qf6 (11...Qh4 12.Kg1+–) 12.Qf3 Bf5 (12...Qh4 13.g3 Qe7 14.Kg2+–) 13.Bd3 Nc6 (13...Bd3 14.Qf6 gf6 15.Nd3 a5+–) 14.Nc6 Qb2 15.Ne7 Kh8 16.Qf5 Rad8 (16...g6 17.Qf4 Rad8+–) 17.Qh7# 1–0. kamret (2185) – Miradko (1705), GameColony.com, 2003.

7.Nce5+= Be5 8.Ne5 Re8 9.Nf3 a5!? +=.

7.Nce5+= Be5 8.Ne5 Re8 9.Nf3 d3 10.cd3 Bf5 11.Qb3 Nc6 12.b5 Ne5?? (better is 12...Na5 13.Qb4 Nd5+/–) 13.Be5 Ng4 14.Bd4 Qd6 (14...Nf6 15.Rc1+–) 15.Qc3 f6 16.Rc1 Rad8 (16...a6 17.e4 (17.Qc7?! Rac8 18.Qc8 Bc8+/–) 17...ab5 18.ab5+–) 17.Ba7 (17.Qc7?! Rc8 18.Qc8 Bc8+/–) 17...b6 18.a5 (18.Qc7?! Rc8 19.Qc8 Bc8+/–) 18...Bd3 19.h3 (19.Qd3? Qd3 20.ab6 cb6 21.Bb6 Rc8–+) 19...Nf2 (19...Nh6 20.Qc7 ba5 21.Qd6 Rd6 22.b6+–) 20.Kf2 Bb5 21.Qb3 Qd5 22.Qd5 (22...Rd5 23.ab6 cb6 24.Bb6+–) 1–0. orane (1975) – matta, Live Game Caissa's Web, 2004.

4.Nf3 f6

5.b5 a6 6.e3 ab5 7.ed4 ed4 (7...ba4 8.de5 c6 9.Be2+=) 8.Qe2 Qe7 (8...Ne7!? 9.Qb5 Nbc6 10.Nd4 Ra5+=) 9.ab5+/– Qe2 10.Be2 Ra1 11.Ba1 c5 12.bc6 Nc6 13.Bb5 d3 14.Bd3 Bg4 15.Ke2 Bf3 16.Kf3 (< 16.gf3 Bd6+/–) 16...Bd6 17.Bb5 Nge7 18.d4 Kd8 19.c4 Rf8 (19...Kc8 20.h3+–) 20.c5 Bc7 21.Rd1 Nd5 (21...b6 22.Na3+–) 22.Nc3 Nc3 23.Bc3 g5 (23...Kc8 24.d5 Be5 25.dc6 (25.Bc6?! bc6 26.Be5 fe5 27.Ke3 Kd7+–) 25...Bc3 26.cb7 Kb7 27.Rd7 Kb8 28.c6+–) 24.d5 Ne5 25.Ke4 f5 26.Kd4 Ng4 (26...f4 27.d6 Nc6 28.Bc6 bc6 29.dc7 Kc7 30.Ke4+–) 27.d6 Bb8 (27...Kc8 28.f3 Rd8 29.fg4 Bd6+–) 28.Ba5 b6 29.Bb6 Kc8 30.d7 (better is 30.Re1 Bd6 31.cd6 Kb7+–) 30...Kb7 31.Re1 Bc7 (31...Nf6 32.d8Q Rd8 33.Bd8 Ne4+–) 32.Bc7 Kc7 33.Re8 (33...Re8 34.de8Q Ne5 35.Qe5 Kb7 36.Qe7 Kb8 37.Ba6 h5 38.Qb7#) 1–0. marekt (2090) – syracuse (1885), ICC, 2003.

5.b5 Bb4 6.c3 dc3 7.Nc3 Be6 8.d4 e4 9.Nd2 Qd4 (9...e3!? 10.fe3 Ne7=) 10.e3+/– Qe5 11.Qc2 Nd7 (11...Qf5 12.Nde4 Qg6 13.a5+=) 12.Nce4+/– Bd2 (12...Qf5!? 13.Bd3 Qg4+/–) 13.Nd2+– Qc5 14.Qe4 (14.Qc5 Nc5 15.Bd4 Nd7+/–) 14...Qd5 15.Qd5+– Bd5 16.Be2 Ne7 17.e4 Bf7 18.0–0 0–0 19.Rfd1 c6 20.Ba3+– Rfe8 21.Nc4 Nb6 22.Nd6 Red8 23.a5 Na4 24.Nb7 Rd1 25.Bd1 Ng6 26.Ba4 (26...cb5 27.Bb5+–) 1–0. pierre – chrisalvin2005, ChessHere.com, 2005.

5.b5 c5 6.e4 =+.

5.b5 c6 6.c3 cb5 7.ab5 dc3 8.Nc3 a6 (8...Bc5 9.Ne4 Be7 10.d4=) 9.d4 ed4 10.Qd4 Qd4 11.Nd4 Bc5 (11...Bb4 12.e4+=) 12.Nd5 Bb6?? (better is 12...Kf7+=) 13.Nb6+– (13...Ne7 14.Na8 ab5 15.Nb5+–) 1–0. marekt (2350) – himath, ICC, 2003.

5.b5 c6 6.c3 cb5 7.ab5 Bc5 8.cd4 Bd4 9.Nd4 ed4 10.Ra4 (10.Qa4 d3+/–) 10...Ne7 11.Bd4 0–0 (11...Be6 12.Nc3+/–) 12.Qb3 (12.Ba7 Nd7+–) 12...Kh8 13.Ba7 Nd7 14.Qg3 (14.Bd4 Ra4 15.Qa4 Nb6+–) 14...b6 15.Nc3 (better is 15.d4+/–) 15...Nc5?? (better is 15...Bb7 16.Qd6 Nc5 17.Qd8 Rfd8 (17...Rad8? 18.Rc4 Bd5 19.Nd5 Nd5 20.Bb6+–) 18.Bb6 Na4 19.Bd8 Nc3 20.dc3 Rd8=+) 16.Bb6!+– Qb6 (16...Na4 17.Bd8 Nb2 18.d3 Rd8 19.Qf4 Ra1 20.Kd2+–) 17.Ra8 Qb7 (17...Nf5 18.Qb8 Qd8 19.e3+–) 18.Qb8 Kg8 (18...Qd7 19.Ra7 Nb7 20.e3+–) 19.d4 Nd7 (19...Qb8 20.Rb8 Nd7 21.Ra8+–) 20.Qb7 Bb7 21.Ra7 Bc8 (21...Rb8 22.e4+–) 22.e4 (22.e3 Kf7+–) 22...Re8 (22...Rd8 23.b6 Nc6 24.Bc4 Kh8 25.Bd5 Nd4 26.b7 Bb7 27.Rb7+–) 23.Kd2 (23.b6 Nb6 24.Bb5 Kf7 25.Be8 Ke8+–) 23...Kf8 (23...Nb6 24.Be2+–) 24.Bd3 Ng6 (24...Nb6 25.Rha1+–) 25.Nd5 Rd8 26.b6 Ne7 (26...Nb8 27.Ke3+–) 27.Ne7 Ke7 (27...Nb6 28.Rb1 Re8 29.Rb6 Re7 30.Ra8+–) 28.b7 Bb7 29.Rb7 Ke8 (29...f5 30.Ra1 Rb8 31.Rb8 Nb8 32.Ra7 Kd8 33.Rg7 fe4 34.Be4+–) 30.Ra1 (30.Bb5 Ke7 31.Ra1 f5+–) 30...h6 31.Raa7 g5 32.Bb5 f5 33.Bd7 Kf8 34.Bf5 Rd4 35.Ke3 Rd8 36.Rh7 (36...Rd3 37.Kd3 g4 38.Ra8#) 1–0. Trkn – guest3593, ICC, 2004.

5.b5 c6 6.c3 cb5 7.ab5 Be6 8.cd4 e4 9.Ng1 +=.

5.b5 c6 6.c3 c5 7.Qc2 Bd6 (7...Ne7 8.cd4 cd4 9.e3 de3 10.de3=) 8.cd4 cd4 9.e3 de3 10.de3 Be6 (10...a6 11.Bd3+=) 11.Bd3 g6 12.0–0 (12.Ba3 Qa5 13.Nbd2 Ba3 14.Ra3 Ne7+=) 12...Qc8 (12...Nd7!?+=) 13.Rd1+/– Qc2 (13...Ne7 14.Qc8 Bc8 15.Be4+/–) 14.Bc2+– Ke7 15.Be4 Nc6? (better is 15...Bc8+–) 16.bc6 bc6 17.Nc3 (17.Bc6 Rc8 18.Be4 Bb3+–) 17...Rb8 (17...Rc8 18.Rd2+–) 18.Rab1 Nh6 (18...Rb6 19.Rd2+–) 19.Bc6 Rhc8 20.Bb5 Bb4 (20...Nf7 21.Nd5 Bd5 22.Rd5+–) 21.Nd5 Bd5 22.Rd5 (22...Bd6 23.e4+–) 1–0. b4_player (2250) – fonix79, GameColony.com, 2003.

5.b5 Bd6 6.c3=.

5.b5 Be6 6.c3=.

5.c3 dc3 6.Bc3 Bg4 7.Qc2 Bd6 8.d4 Bf3 9.de5 fe5 10.ef3 Nf6 11.b5 0–0 12.Bc4 Kh8 13.0–0 c6 14.Nd2 Nbd7 15.bc6 bc6 16.Rab1 Qc7 17.Ne4 Ne4 18.fe4 Nc5 19.Bd2 Nd7 20.Bg5 Nf6 21.Rfd1 Rab8 22.Rb8 Rb8 23.Be3 Rb4 24.a5 Be7 25.a6 Ng4 26.Bd2 Rb8 27.h3 Nf6 28.Be3 h6 29.Rb1 Rb1 30.Qb1+– Nd7 31.Qb7 Qb7 32.ab7 c5 33.g3 Nb8 34.f4 ef4 35.Bf4 1–0. Trkn – guest797, ICC, 2003.

3.Bb2 Bd6

4.Nf3 e4?? 5.Bg7+– (5...ef3 6.ef3 Qe7 7.Qe2+–) 1–0. lucya (2160) – piratov13, GameColony.com, 2002.

4.Nf3 Bg4 5.Ne5 (5...Bc8 6.Nd3+=) +=. orane (2000) – ClintonStreet, Live Game Caissa's Web, 2004.

4.Nf3 h6 5.Be5+= Be5 6.Ne5 Qe7 7.Nd3 Nf6 8.e3 Bf5 9.Qf3 Bg6 10.Nc3 c6 11.b5 0–0 12.bc6 bc6 13.Rb1 Nbd7 14.Be2 d4 (better is 14...Ne4!?=) 15.ed4+/– Bd3 (15...Rfe8!?+/–) 16.Qd3+– (16.cd3?! Qd6+/–) 16...Rfe8 17.0–0 Nd5 18.Nd5 cd5 19.Rfe1 Qd6 20.Rb7 Nb6 21.Qf3 f6? (21...Nd7+–) 22.Qh5 Re7 (22...Kh8 23.Qf7 Qf8 24.Qf8 Rf8+–) 23.Re7 Qe7 24.a5 Nc4 (24...Qf7 25.ab6 ab6 26.Qf7 Kf7+–) 25.Qd5 (25...Kf8 26.Qa8 Qe8 27.Qa7 (27.Bc4?! Qa8 28.Bd3 Kf7+–) 27...Na5 28.Qc5 Kg8 29.Bc4 Nc4 30.Re8 Kf7 31.Qe7 Kg6 32.Qe4 Kf7 33.Re7 Kf8 34.Ra7 Kg8 35.Ra8 Kf7 36.Qe8) 1–0. market (2190) – rwfield (1775), GameColony.com, 2002.

4.Nf3 Nd7

5.Na3 a6 6.c4 d4 7.c5 Be7 8.Nc4 f6 9.e3 Nh6 10.Na5 de3 11.de3 0–0 12.Bd3 c6 13.Bc3 Kh8 14.Qc2 g6 15.h4 Qc7 (15...Rf7!?+–) 16.h5 g5 17.Bh7 f5 18.Bg6 b6? (18...g4 19.Nh4 b6+–) 19.cb6 Qb6 20.Nc4 Qb7 21.Nce5 Ne5 22.Be5 Bf6 23.Bf6 Rf6 24.Qc3 (24.Ng5?! Qb4 25.Qd2 Rb8+–) 24...Qg7 25.Rd1 Be6 26.Rd6 Re8 (26...a5 27.ba5 g4+–) 27.Be8 Ng4 (27...Ng8 28.h6! Rh6 29.Qg7 Kg7 30.Rh6 Nh6 31.Re6+–) 28.Ne5 Ne5 29.Qe5 (29...f4 30.h6+–) 1–0. orane (2170) – svbs (1625), Live Game Caissa's Web, 2004.

5.Na3 c6 6.c4 d4 7.c5 Bc7 8.e3 e4 (better is 8...a5!?=+) 9.Nd4+= Ne5 10.Nc4 Nd3 11.Bd3 ed3 12.0–0 Nf6 13.f4 0–0 14.Ne5 Ne4 15.Nd3 Qh4 16.Ne5 f6?? (better is 16...Be5 17.fe5 Qe7+–) 17.Qb3 Kh8 18.Nf7 Rf7 19.Qf7 Bf5 (19...Bh3 20.gh3 Qh3 21.Rf3+–) 20.Qc7 Bh3 (20...Qg4 21.Qb7 Rc8 22.d3+–) 21.Qb7 Rg8 22.gh3 Qh3 23.Rf3 Qg4 24.Kh1 Qf3 25.Nf3 (25...a5 26.Kg2 ab4 27.Qc6 Nd2 28.Nd2+–) 1–0. orane (2185) – FlyBiMarc6 (1735), Live Game Caissa's Web, 2004.

5.Na3 c6 6.c4 Ne7 7.cd5 cd5 8.Nb5 Bb8 9.Rc1 0–0 (9...a6 10.Nc3=+) 10.Qb3 a6 11.Nc3 Nf6 12.e3 d4 (12...Nc6 13.b5 ab5 14.ab5=+) 13.ed4= ed4 14.Ne2 Be6 (14...d3 15.Ned4 Ned5 16.Bd3 (< 16.Qd3 Re8 17.Be2 Nf4=+) 16...Qe7 17.Be2=) 15.Qa3 a5 (15...Bd5 16.Ned4 Re8 17.Bc4=) 16.Ned4+= ab4 17.Qb4 Bd6 (17...Bd5!?=) 18.Ne6+/– (18.Qb7? Bd5 19.Qb5 Rb8–+) 18...Bb4 (better is 18...fe6!? 19.Qb3 Ned5+/–) 19.Nd8+– Rfd8 20.Bf6 gf6 21.Bb5 Nf5 22.Ke2 Nd4 23.Nd4 Rd4 24.Rhd1 b6 25.Rc7 Rad8 26.d3 Bc5 27.Rc1 Ba3 28.R1c2 Bb4 29.Rb7 Ba5 30.Rcc7 Rf8 31.Ke3 Rg4 32.g3 Rg5 33.d4 Kg7 34.Bc4 f5 35.Bf7 (35...Kh8 36.Be6 f4 37.gf4+–) 1–0. marekt (2340) – steve_wpb (1995), ICC, 2003.

5.Na3 c6 6.c4 Ngf6 7.cd5 cd5 8.Nb5 Bb8 9.Rc1 (9.e3 0–0=+) 9...a6 10.Nc3 0–0 (10...Bd6 11.Qb3 d4 12.Na2=+) 11.Qb3 (11.e3 d4 12.Na2 Nb6=+) 11...d4–/+ 12.Nd5 Nd5 13.Qd5 Nf6 (13...Qe7!?–/+) 14.Qd8= Rd8 15.e3 Bg4 16.ed4+= Bf3 17.gf3 ed4 18.Bd4 Bf4 19.Be3 Re8 20.Kd1–/+ Be5 21.f4 Bd6 22.Bg2 Re7 23.Rc4 Rae8 24.Rd4 Bb8 25.Rg1 Kf8 26.Rc4 Bd6 27.Bd4 Nh5 28.Bf3 1–0. market (2235) – zick_zack (1725), GameColony.com, 2002.

5.Na3 c6 6.c4 Ngf6 7.cd5 Nd5 8.Nc4 Bb4 9.e4 N5f6 10.Nfe5 Ne5 11.Be5 0–0 12.Rb1 a5 13.Qc2 b5 14.ab5 cb5 15.Ne3 Bd7 16.Bf6 Qf6 17.Nd5 Qd4 18.Qd3 Qd3 (18...Bc5 19.Qd4 Bd4 20.Bb5=+) 19.Bd3+= Bc6 (19...Rfd8 20.Ke2+=) 20.Nb4+/– ab4 21.Ke2 Ra4 (21...Rfe8!? 22.f3 f5 23.Rb4 Ra4 24.Ra4 ba4 25.Bc4 Kf8+/–) 22.Rhc1 Bd7 23.Rc7 Rd8 24.Rd7! Rd7 25.Bb5 Rda7 26.Ba4 Ra4 27.d4 b3? (better is 27...Kf8+/–) 28.Rb3+– (28...f5 29.Rb8 Kf7 30.Rb7 Kf8 31.Ke3+–) 1–0. marekt (2195) – chesshorse10 (1815), ICC, 2003.

5.Na3 Ngf6 6.Nb5 0–0 (6...Bb4 7.Ne5 Ne4 8.c3–/+) 7.Nd6= cd6 8.e3 Nb6 9.d4 (9.a5 Nc4 10.Bc1 e4=) 9...e4=+ 10.Nd2 Bg4 11.f3 ef3 12.gf3 Bh5 (12...Bd7 13.Bb5=+) 13.Be2 (13.Bd3 Ne4 14.0–0 Re8=+) 13...Re8 (13...Qe8 14.Ra3 Na4 15.Bc1–/+) 14.a5 (14.Ra3 Bg6 15.a5 Nbd7=) 14...Nbd7 (14...Nc4 15.Nc4 dc4 16.Qd2=+) 15.Kf2 Qe7 16.Nf1 b6 17.Kg2 ba5 18.Ra5 Nb6 19.Bb5 Rec8 20.Ra2 Nc4=+ 21.Bc1 a6 22.Ba6= Rc6?? 23.Bc4+– Ra2 24.Ba2 Nd7?? 25.Ng3+– Bg6 26.Bb3 Nf6 27.Re1 h5 28.Qd2 h4 29.Ne2 Qe6 30.e4! h3 31.Kg1 Ne4 32.fe4 Qg4 33.Ng3 de4 34.Qg5 Qf3 35.Ne4! Be4 36.Qd8 Kh7 37.Qh4 Kg8 38.Qe4 1–0. fajgo – pmorphy, internet, 2002.

4.Nf3 Qe7

5.Na3 c6 6.c4 Nf6 7.c5 Bc7 8.d4 (8.Rc1!?=+) 8...e4–/+ 9.Ne5 Be5 (9...e3!? 10.fe3 a5–+) 10.de5 Ng4 (10...Nfd7 11.Qd4–/+) 11.Qd4=+ 0–0 (11...e3 12.f3 Nh6 13.g4=) 12.f3= ef3 13.ef3 Nh6 14.Rd1 (14.Bd3 Nd7=) 14...Nd7=+ 15.Be2 f6 (15...a5!? 16.ba5 Nc5–/+) 16.ef6= Nf6 17.Qe5 Re8 (17...Qf7!?=) 18.Qe7+= Re7 19.Kd2 Bf5 (19...Nd7 20.Rc1+=) 20.g4+/– Bg4 (better is 20...Nhg4!? 21.fg4 Ne4 22.Kc1 Nf2+=) 21.Bf6+– (21.fg4?! Ne4 22.Kc2 Nf2+=) 21...gf6 22.fg4 Rae8 (22...a5 23.Rb1+–) 23.Rde1 Re3 24.Nc2 Rb3 (24...Rh3 25.Ref1+–) 25.Bd3 Re5 (25...Re1 26.Re1 (26.Ne1?! Rb4 27.h3 Ra4+/–) 26...Kf8 27.h3+–) 26.Rhg1 (26.h3 Nf7+–) 26...Nf7 27.Ref1 Kg7 28.Rf5 (28.Rf4 Re8+–) 28...Rf5 29.gf5 Kh6 30.Rg8 Ne5 31.Rg3 (31...Nd7 32.a5+–) 1–0. guest2458 – crispyambulance (1635), ICC, 2003.

5.Nc3 Nf6 6.Nb5 a6 7.Nd6= cd6 8.d4 e4 9.Nd2 0–0 10.e3 Nc6 11.b5 ab5 12.ab5 Ra1 13.Ba1 Nd8 14.Be2 Ne6 15.0–0 Ng5 16.Bc3 Qc7 17.Bb4 Re8 18.h4 Ne6 19.h5 Bd7 20.h6 g6 21.c4 dc4 22.Nc4 d5 23.Nd6 Ra8 24.Qb3 Ne8? (better is 24...Ng5+=) 25.Ne8+– Be8 26.Qd5 Qc2 (26...Ra4 27.Qb3 Ra8 28.d5+–) 27.Qb7 Rc8 (27...Rd8 28.Ba5 Qe2 29.Bd8 Qb5 30.Qb5 Bb5 31.Rb1 Nd8 32.Rb5+–) 28.Bd1 (better is 28.d5 Nf8 29.Qe7 Nd7+–) 28...Qc7 29.Qc7 Rc7 30.b6 Rb7 31.Bc5 Nc5 32.dc5 f5 (32...Kf8+–) 33.Bb3 Kf8 34.Bd5 Rb8 35.Ra1 Ke7 36.Ra7 Kf6 37.Ra8 Ra8 38.Ba8 (38...Kg5 39.b7+–) 1–0. b4_player (2225) – Sune (1750), GameColony.com, 2003.

5.Nc3 Nf6 6.Nb5 Bb4 7.Be5 Na6 (7...Ba5 8.Nbd4=+) 8.c3 Bc5 (8...Ba5!?=) 9.d4+= Bb6? (better is 9...Bd6+=) 10.a5+– (10...0–0 11.ab6 ab6 12.e3+–) 1–0. orane (2005) – ClintonStreet, Live Game Caissa's Web, 2004.

5.Nc3 Nf6 6.Nb5 e4!? 7.Nd6 Qd6 –/+.

5.e3 Nf6–/+.

5.Nc3 c6

6.b5 f5 7.d4 e4 8.Ne5 Nf6 9.a5 0–0 10.f4 Ng4 11.Qd2 (better is 11.Ng4!? fg4 12.e3=+) 11...e3–+ (11...Be5 12.de5 (< 12.fe5 e3 13.Qc1 f4–/+) 12...Qb4 13.Ba3 Qa5 14.e3+/–) 12.Qc1 Nf2 (12...Ne5?! 13.fe5 Bb4 14.Qe3=+) 13.Rg1 Be5 14.de5 d4 (better is 14...Qb4!? 15.Ra4 Qc5–+) 15.Ba3 c5 16.Nd5 Qd7 (better is 16...Qd8 17.c4 Ne4–/+ (17...Qa5 18.Bb4 Qd8 19.Bc5+/–)) 17.c4= b6 18.g3 (< 18.ab6 ab6 19.g4 Qd8=+) 18...Bb7 19.Bg2 Ne4 20.ab6 Bd5 21.cd5 ab6 22.Qc4 Kh8 23.Bb2?? (better is 23.d6=) 23...Ra1–+ 24.Ba1 Qa7 25.Qc1 Qa2 26.g4?? (26.Bb2 Qd5 27.Qc2 Qa2–+) 26...Qd5 27.Qb1 Qc4 28.gf5 Nd2 29.Qb2 Nd7 30.Bc6–/+ d3 31.Bd7?? Qf4–+ 32.Kd1 de2 33.Kc2 –+. pierre – erikv23, Yahoo, 2005.

6.b5 Nf6 7.bc6 Nc6 8.Nb5=+.

6.b5 Nf6 7.e3 0–0 8.Be2 Bf5 9.0–0 Nbd7 10.a5 c5 11.a6 b6 12.d3 Rae8 13.Nd5 (13.e4 Be6=) 13...Nd5=+ 14.e4 Be6 (14...Nc7!? 15.ef5 Nb5=+) 15.ed5= Bd5 16.Re1 Qd8 17.Qd2 (17.Nd2 Nf6=) 17...Qc7 18.Qe3 Kh8 19.c4 Ba8 20.Rad1 f5 21.Qg5 Rf6 22.Qh5 Ref8 23.Ng5 h6 24.Bf3 Qb8 (24...Bf3!? 25.Nf3 Kg8+=) 25.Bc6+/– Qc8? (better is 25...Kg8!? 26.Nf3 Qc7 27.Bd7 Bf3 28.Qf3 Qd7 29.Qd5 R6f7 30.Be5 Be5 31.Qe5 Rd8+/–) 26.f4+– Bc6 27.bc6 Qc6 28.fe5 Ne5 29.Be5 (29.Re5?! Be5 30.Be5 Rg6+/–) 29...Be5 30.Re5 f4 (30...Kg8 31.Nf3+–) 31.Ne4 R6f7 32.Rf1 f3 33.Ng5 f2 34.Kh1 Rf6 35.Nf3 Qa4 36.Re2 (36.Rf2?! Qd1 37.Re1 Qe1 38.Ne1 Rf2+/–) 36...Qb3 (36...Qa6 37.Ref2 (37.Rff2?! Qa1 38.Re1 Qe1 39.Ne1 Rf2+=) 37...Qc8 38.Qd5+–) 37.Qd5 (37.Rff2?! Qd1 38.Re1 Qe1 39.Ne1 Rf2+/–; 37.Ref2?! Qd3 38.Qh4 Qa3+–) 37...Qc3 (37...Rf5 38.Qe4+–) 38.Re7 Qd2 (38...Rf4 39.h3 R4f5+–) 1–0. marekt (2185) – kfj (1905), ICC, 2003.

6.b5 Bg4 7.h3 Bf3 8.ef3 Nd7 9.a5 Ngf6 10.a6 Nb6 (Better is 10...Nb8!?=+) 11.ab7–/+ Qb7 12.bc6 Qc7 13.Nb5 Qc6 (13...Qe7 14.Ra6–/+) 14.f4 (14.Na7 Qc5 15.Ba3 Qa3 16.Bb5 Nbd7 17.Ra3 Ba3+–) 14...Nc4 15.Nd6 Qd6 16.Bc4 dc4 17.fe5 Qe6 18.0–0 Nd7 19.Qh5 0–0 20.Bd4 a5 21.Ra4 Rfb8 22.Rfa1 Rb5 23.Qf3 Qd5 24.Qd5 Rd5 25.Rc4 Ne5 26.Rca4 Nc6 27.Be3 h5 28.d4+– Rb8? 29.c4 Rf5 30.d5 Ne5 31.Rd1 Rb4 32.Rb4 ab4 33.c5 Nc4 34.d6 Ne3 35.d7 Nd1 36.d8Q 1–0. b4_player (2030) – bkr13 (1865), GameColony.com, 2002.

6.b5 Bg4 7.h3 Bf3 8.ef3 f5 9.bc6 bc6 10.Rb1 Nf6 11.Bd3 e4 12.fe4 fe4 13.Bf1 0–0 14.Qe2 Nbd7 15.Qe3 Bc5 16.d4 Bd6 17.Be2 h6 (17...Rab8 18.0–0=+) 18.0–0= Nh7 (18...Rab8 19.Rfe1=) 19.Nd1 Bf4 (19...Rab8 20.Re1=) 20.Ba3 Qf6 21.Qc3 Rf7 22.Ne3 Ng5 23.h4 (23.Ng4 Qg6=) 23...Nf3=+ 24.gf3 Qh4 25.Ng4 Nf6 (25...h5 26.Bc1 hg4 27.Bf4 gf3 (27...Rf4?! 28.fe4 Raf8 29.Qg3 Qg3 30.fg3 Re4 31.Rb7 Re2 32.Rd7–/+) 28.Bf3 ef3 (28...Qf4 29.Qc6 Raf8 30.Bg2–/+; 28...Rf4?! 29.Bg2 Qf6 30.Rb7–+) 29.Qf3 Rf4–+) 26.Bc1+/– (26.Qc6 Ng4 27.Rb8 Rb8 28.Qe8 Re8 29.Rb1 Qf2 30.Kh1 Qh2) 26...Ng4 (26...Bc1 27.Rbc1 Raf8 28.Ne3+= (28.Qc6 ef3 29.Nf6 Rf6 30.Qd5 Kh8 31.Bf3 Rf3 32.Qe5 Qg4 33.Qg3 Rg3 34.fg3 Qg3 35.Kh1 Rf4 36.Rf4 Qf4 37.Rg1 Qd4 38.Rg2 a5 39.Kh2 Qa4 40.Re2 Qg4 41.Re8 Kh7 42.Rf8 Qb4 43.Rf1 Qh4 44.Kg1 Qg4 45.Kf2 Qf4 46.Ke2 Qf1 47.Kf1 a4 48.c4 Kg6 49.Ke2 a3 50.Kd3 a2 51.c5 Kf5 52.c6 Ke6 53.c7 Kd7 54.Kc2 a1Q 55.Kd3 Qa6 56.Ke4 g5 57.c8B Qc8 58.Kd3 h5 59.Ke3 Qc3 60.Ke4 g4 61.Kf4 g3 62.Kg5 g2 63.Kf4 g1Q 64.Ke4 Qgd4 65.Kf5 Qg4)) 27.Bf4+– Rf4 28.fg4 Raf8 29.Qg3 (29.Qc6 Rg4 30.Bg4 Qg4 31.Kh2 Rf5 32.Qe8 Kh7–+) 29...Qg5 (29...Qg3 30.fg3 Rf1 31.Bf1+/–) 30.Rb7 R8f6? (better is 30...Qf6 31.c3 Rf7 32.Rf7 Qf7+–) 31.Ra7 Rg6 (31...Kh7 32.Rb7+–) 32.Rb1 h5 (32...Rf8+–) 33.Rb8 Kh7 34.Raa8 Rgf6 35.Rh8 (better is 35.gh5!? Qg3 36.fg3 Kh6 37.gf4 Rf4+–) 35...Kg6 36.Rh5 (36…Rf7 37.Rg5 Kg5 38.Qh2+–) 1–0. lucya (2175) – rwfield (1805), GameColony.com, 2002.

6.b5 Bg4 7.h3 Bf3 8.ef3 Qg5 9.a5 Nf6 10.a6 b6 11.bc6 Nc6 12.Nb5 Bb8 13.Ba3 Nd7 14.Nc3 Nf6 (better is 14...Qg6!?+=) 15.Bb5+/– Kd7 16.0–0 Rc8 17.Qe2 Bd6 18.Bd6 Kd6 19.Bc6 Rc6 20.Qd3 Rd8 (better is 20...d4+=) 21.Nb5+– Ke7 22.Na7 Rc4 23.f4 Qg6? 24.fe5 Ne4 25.Nb5 Kf8 26.f3 Nc5 27.Qg6 hg6 28.d4 Ne6 29.c3 Nc7 30.Rfb1 Nb5 31.Rb5 Rc3 32.Rb6 Ra8 33.Rd6 Rc4 34.Rd5 Rc6 35.a7 Rc7 36.Rda5 Ke8 37.d5 Kd7 38.Ra6 (38...Kd8 39.Kf2+–) 1–0. pierre – erikv23, Yahoo, 2005.

4.Nf3 f6

5.b5 Be6

6.Nc3 Ne7

7.e3 0–0

8.Be2 c6

9.0–0 Nd7

10.h3 a6

11.ba6 ba6 12.Ba3 (12.d4 Qa5+= 13.Ba3 c5 14.Qd2 cd4 15.ed4+=) 12...Ba3 (12...c5 13.d4 e4 14.Nd2 Qa5 15.Ncb1+=) 13.Ra3 Qc7 (13...c5 14.d4 Qc7 15.de5+=) 14.Qa1 (14.d4 c5 15.de5+=) 14...Rfb8 (14...c5 15.Rb1+=) 15.Rb1 (15.d4+=) 15...Rb1 16.Qb1 c5 17.Qa2 c4 (17...Qc6 18.a5+=) 18.d3 Nb6 19.a5 Nd7 (better is 19...Nbc8!?=) 20.dc4+/– dc4 21.Ra4 Nd5?? (better is 21...Rc8+/–) 22.Bc4 (22.Nd5!? Qd6 23.Bc4 Kh8+–) 22...Nc3 23.Be6 Kh8 24.Rc4 Na2 (24...Ne2 25.Kf1 Qd6 26.Ke2 Rd8 27.Bd7 Qd7+–) 25.Rc7 Nb4 26.Bd7 Nc2 (26...Rd8+–) 27.Rc2 Rd8 (27...g6 28.Rc8 Rc8 29.Bc8+–) 28.Rc8 Rc8 29.Bc8 h6 30.Ba6 1–0. pierred – skrto1, internet, 2008.

11.Qb1 A) 11...c5 12.Qa2 (12.Rd1 Qa5 13.Qa2 Bf7 14.d4 cd4 15.ed4+=; 12.ba6 ba6 13.Qa2 Bf7 14.d4 cd4 15.ed4–/+; 12.d3 Qc7 13.a5 b6 14.d4 cd4 15.ed4+=; 12.Qd1 Qa5 13.d3 Nb6 14.Re1 Rfd8 15.Qd2+=; 12.Rc1 e4 13.Ne1 f5 14.Qa2 Bf7 15.Qa3–/+; 12.Qc1 e4 13.Ne1 f5 14.d3 Nf6 15.ba6–/+) 12...ab5 13.Nb5 Nb6 14.Nd6 Qd6 15.d4+=; B) 11...Qe8 12.Rc1 (12.Rd1 ab5 13.ab5 Ra1 14.Ba1 c5 15.Qa2–/+; 12.Qd1 ab5 13.ab5 Ra1 14.Ba1 Qf7 15.Nh4+=; 12.Qc1 c5 13.a5 e4 14.Ne1 Qg6 15.d3+=; 12.Re1 ab5 13.ab5 Ra1 14.Ba1 c5 15.Qa2+=) 12...c5 13.a5 e4 14.Ne1 Qg6 15.d3+=; C) 11...Qa5 12.Qe1 (12.Re1 c5 13.Qa2 Bf7 14.Qb1 e4 15.Nh2–/+; 12.Qd1 c5 13.d3 Nb6 14.Qd2 Nf5 15.Rfb1+=; 12.Qa2 ab5 13.ab5 Qa2 14.Na2 d4 15.Nc1+=; 12.Qc1 c5 13.Qd1 e4 14.Ne1 f5 15.d4–/+) 12...c5 13.d4 cd4 14.Nd5 Qe1 15.Ne7+=; D) 11...Qc7 12.Re1 (12.Ba3 Ba3 13.bc6 bc6 14.Ra3 c5 15.Qa2+=; 12.Qd1 ab5 13.ab5 c5 14.d3 Qb6 15.Qd2+=) 12...c5 13.Rd1 a5 14.d3 Rad8 15.Re1+=; E) 11...ab5 12.ab5 c5 13.Ra8 Qa8 14.d4 cd4 15.ed4+=; F) 11...Nf5 12.Re1 (12.ba6 ba6 13.Qa2 Bf7 14.d4 Qa5 15.Rab1+=; 12.bc6 bc6 13.Qa2 Qe7 14.Ba3 Rfb8 15.Bd6–/+) 12...e4 13.Nd4 Nd4 14.ed4 Qa5 15.Ba3+=.

11.bc6 A) 11...bc6 12.d4 (12.Rb1 Qa5 13.Qc1 Rfb8 14.d4 Bb4 15.Nd1–/+) 12...Qa5 13.de5 fe5 14.Ne4 Rab8 15.Nfg5=; B) 11...Nc6 12.Ba3 Ba3 13.Ra3 Qe7 14.Qa1 Rac8 15.Qb2+=.

11.d4 A) 11...ab5 12.de5 (12.ab5 Ra1 13.Qa1 e4 14.Nd2 c5 15.Qa2+=) 12...fe5 13.Ne4 Bb4 14.Neg5 Bf5 15.ab5=; B) 11...e4 12.Nd2 (12.Ne1 ab5 13.ab5 Qc7 14.Qc1 Rfc8 15.Ra8–/+) 12...ab5 13.ab5 Qc7 14.bc6 bc6 15.Na4+=.

11.Qe1 Qa5 12.d4 (12.Rb1 Nb6 13.d4 Bb4 14.ba6 ba6 15.de5+=; 12.Nd1 c5 13.ba6 ba6 14.d3 Qe1 15.Re1+=; 12.Rd1 Nb6 13.Ra1 Bf5 14.d4 ab5 15.ab5–/+) 12...Bb4 13.de5 fe5 14.Ng5 Bf5 15.e4 +=.

11.Qe1 ab5 12.ab5 Qc7 13.Qd1 c5 14.d3 Ra1 15.Qa1 +=.

11.Qe1 b6 12.d4 (12.ba6 Nb8 13.Ba3 Na6 14.Bd6 Qd6 15.Rb1+=; 12.Qc1 ab5 13.ab5 c5 14.Ra8 Qa8 15.d4+=; 12.bc6 Nc6 13.Ba3 Ba3 14.Ra3 Qe7 15.Qa1–/+; 12.Qd1 Qc7 13.ba6 Nb8 14.Ba3 Ba3 15.Ra3+=; 12.Qb1 ab5 13.ab5 c5 14.Ra8 Qa8 15.d4+=; 12.d3 Qc7 13.Qd2 Rfc8 14.ba6 Re8 15.Rfb1+=) 12...e4 13.Nd2 Qe8 14.f3 ef3 15.Bf3 +=.

11.Qe1 Qc7 12.ba6 (12.bc6 bc6 13.d4 e4 14.Nd2 c5 15.dc5+=; 12.Qd1 ab5 13.ab5 c5 14.d3 Ra1 15.Qa1+=; 12.Qc1 Nf5 13.ba6 ba6 14.Ba3 Rfb8 15.a5+=) 12...ba6 13.d4 e4 14.Nd2 Rfb8 15.Nb3 +=.

11.Qe1 Qe8 12.Nh4 (12.Qd1 ab5 13.ab5 Ra1 14.Ba1 c5 15.Nh4+=; 12.Qb1 ab5 13.ab5 Ra1 14.Ba1 c5 15.Qd1–/+; 12.d3 Qg6 13.Nh4 Qh6 14.Nf3 b6 15.Qd2+=; 12.Qc1 c5 13.a5 Qg6 14.Nh4 Qh6 15.Nf3+=; 12.bc6 bc6 13.Rb1 c5 14.Nh4 Nb6 15.Ra1–/+; 12.ba6 ba6 13.Rb1 c5 14.Nh4 Nb6 15.a5–/+) 12...ab5 13.ab5 Ra1 14.Qa1 Qf7 15.Qa7 +=.

11.Re1 Qa5 12.Nb1 (12.Rf1 c5 13.d3 Ng6 14.Qd2 Nb6 15.Rfb1+=; 12.Rb1 Nb6 13.Ra1 Nf5 14.e4 Ne7 15.ed5+=; 12.Na2 c5 13.d4 cd4 14.ed4 Qc7 15.de5+=; 12.Rc1 c5 13.Ra1 e4 14.Nh2 f5 15.d4–/+; 12.Qb1 c5 13.Qa2 Bf7 14.Qb1 e4 15.Nh2–/+) 12...c5 13.d4 c4 14.de5 fe5 15.Ng5 +=.

11.Re1 ab5 12.ab5 c5 13.Ra8 Qa8 14.d4 cd4 15.ed4 +=.

11.Re1 b6 12.ba6 (12.Rf1 ab5 13.ab5 Ra1 14.Qa1 c5 15.Qa4+=; 12.Qb1 Nb8 13.ba6 Na6 14.Ba3 c5 15.e4+=; 12.Qc1 ab5 13.ab5 c5 14.Ra8 Qa8 15.d4+=; 12.bc6 Nc6 13.Ba3 Ba3 14.Ra3 Qe7 15.Qa1+=; 12.Kh1 Qc7 13.ba6 Nb8 14.Qb1 Na6 15.Ba3+=; 12.Rb1 ab5 13.ab5 c5 14.d3 Qe8 15.Ra1+=) 12...Nb8 13.Qb1 Na6 14.Ba3 c5 15.e4 +=.

11.Re1 c5 12.d3 (12.d4 e4 13.Nd2 c4 14.ba6 ba6 15.Ba3+=; 12.ba6 ba6 13.d4 e4 14.Nd2 c4 15.Ba3+=) 12...Qa5 13.Qd2 Bc7 14.Ba3 Rfe8 15.Reb1 +=.

11.Ne1 A) 11...ab5 12.ab5 Ra1 13.Qa1 c5 14.Qa2 Bf7 15.Qa4+=; B) 11...Qe8 12.Bh5 (12.Nd3 c5 13.a5 c4 14.Ne1 Bb4 15.b6–/+; 12.Nf3 ab5 13.ab5 Ra1 14.Ba1 Qg6 15.Nh4–/+) 12...Ng6 13.Nd3 ab5 14.ab5 Ra1 15.Qa1+=; C) 11...Qc7 12.Nf3 (12.ba6 ba6 13.Rb1 Rfb8 14.Nd3 Rb6 15.f4+=; 12.Nd3 e4 13.Ne1 Nf5 14.ba6 ba6 15.Ba3+=; 12.bc6 Nc6 13.Nf3 e4 14.Ne1 f5 15.Kh1–/+; 12.Qc1 Nf5 13.ba6 ba6 14.Ba3 Ba3 15.Qa3+=; 12.Qb1 ab5 13.ab5 Ra1 14.Qa1 Nb6 15.bc6–/+) 12...ab5 13.ab5 c5 14.d3 Ra1 15.Qa1+=; D) 11...b6 12.ba6 (12.Nf3 Qc7 13.ba6 Nb8 14.Ba3 Ba3 15.Ra3+=; 12.Qb1 Qe8 13.ba6 Qg6 14.Kh1 d4 15.Nd1+=; 12.bc6 Nc6 13.d4 Bb4 14.Nd3 Qe7 15.de5+=; 12.Qc1 Qc7 13.Ba3 ab5 14.Bd6 Qd6 15.ab5+=; 12.f4 ef4 13.ef4 Nc5 14.bc6 Nc6 15.f5+=) 12...Nb8 13.Nf3 Nf5 14.e4 Nd4 15.ed5=; E) 11...Qa5 12.Nd3 (12.ba6 ba6 13.Nd3 Rab8 14.Ba3 Ba3 15.Ra3–/+; 12.bc6 bc6 13.Nd3 c5 14.Ba3 Rab8 15.Nc1–/+; 12.Nf3 c5 13.d3 Rfe8 14.Qd2 Nf5 15.Rfe1+=; 12.f4 ef4 13.ef4 Qb6 14.Kh2 ab5 15.ab5–/+) 12...c5 13.Ba3 Bf5 14.Bg4 Bg4 15.Qg4+=; F) 11...Re8 12.Bh5 (12.Nd3 c5 13.Ba3 Qa5 14.Rb1 f5 15.f4+=; 12.Nf3 c5 13.d4 cd4 14.ed4 e4 15.Nd2+=) 12...g6 13.Be2 ab5 14.ab5 Ra1 15.Qa1+=; G) 11...Nf5 12.bc6 (12.ba6 ba6 13.Nd3 Rb8 14.Bg4 e4 15.Ba3+=; 12.Nd3 e4 13.Nc1 ab5 14.ab5 Ra1 15.Ba1+=) 12...bc6 13.Nd3 Rb8 14.Bg4 e4 15.Ba3+=.

4.Nf3 Nf6

5.Be5= Bb4 6.e3=+.

5.Be5= Be5 6.Ne5= Qd6 7.Nd3 Bf5 8.b5 (8.e3 Bd3 9.Bd3 Qb4=) 8...0–0 (8...Bd3 9.ed3 0–0 10.Be2=) 9.e3= c5 10.bc6 Nc6 11.Nc3 (11.Be2 Bd3 12.Bd3 Nb4+=) 11...d4 12.Nb5 Qd8 13.Qf3 Be4 14.Qg3 a6 15.Nd6 Nh5 16.Qg4 Qd6 17.Qe4 de3 18.fe3 Rae8 19.Qh4 Nd4? 20.Kd1+– Nc2 21.Kc2 Rc8 22.Kd1 Nf6 23.Qb4 Qd5 24.Rb1 Rc7 25.Qb3 Qd7 26.Be2 Ne4 27.Qb4 Re8 28.Rf1 1–0. b4_player (1995) – bkr13 (1855), GameColony.com, 2002.

5.Ne5= Bb4 6.e3= 0–0 7.Be2 Re8 8.0–0 Bd6 9.Nf3 Bf5 10.d3 c5 11.Nbd2 Nc6 12.Rb1 Qc7 13.Bf6 gf6 14.Re1 Kh8 15.c4 d4 16.ed4 Nd4 17.Nd4 Bh2 (17...cd4 18.Nf3=) 18.Kh1+/– cd4 19.Bf3 Rg8?? (better is 19...Re1 20.Qe1 Be5 21.Rb7 Qd6 22.Rf7 Bg6 23.Ba8 Bf7+/–) 20.Rb7+– Qf4 (20...Qd6 21.Rb5 (21.Rf7?! Bg6 22.Rfe7 Be5+/–) 21...Qf4 22.Nf1+–) 21.Nf1 Bh3 (21...Rae8 22.Re8 Re8 23.Nh2+–) 22.Nh2 Rg2 (22...Be6+–) 23.Bg2 Bg2 24.Kg2 Rg8 25.Kh1 Qf2 26.Qe2 Qg3 (26...Qf4 27.Qe4 Qe4 28.Re4+–) 27.Ra7 (27.Rf7 Qg6 28.Ra7 h6+–) 27...f5 (27...Qg7 28.Qf2+–) 28.Rf7 1–0. Trkn – guest7768, ICC, 2004.

5.Ne5= Be5 6.Be5 0–0 7.Nc3 Qe7 8.Bf6 Qf6 9.Nd5 Qd6 10.e4 c6 11.Ne3 Qb4 12.Bc4 b5? (better is 12...Nd7!?+/–) 13.ab5+– cb5?? (13...Qe7+–) 14.Bd5 Nc6 15.Bc6 Rb8 16.Ra7 Be6 (16...Qc5 17.Ra8 Ra8 18.Ba8+–) 17.0–0 Rfc8 (17...Qd4 18.Ra6+–) 18.Bd5 Qd4 (18...Qc5 19.Be6 fe6 20.Ra6+–) 19.Qa1 b4 (19...Qa1 20.Rfa1 Bd5 21.ed5 Kf8+–) 20.Qd4 (20...Kh8 21.Be6+–) 1–0. market (2170) – Alve (1740), GameColony.com, 2002.

3.Bb2 Nd7

4.Nf3 Bb4 5.Be5 Ne5 6.Ne5 Qf6–/+.

4.Nf3 Bb4 5.Ne5 Ne5 6.Be5 Nf6 7.e3 0–0 8.Qf3 Be7 9.Qg3 c5 10.Bb5 a6 11.Bc7 Bd6 (11...Nh5 12.Bd8 Ng3 13.Be7 Nh1 14.Bf8 Kf8+/–) 12.Qd6+/– (< 12.Bd6 Ne4 13.Qe5 Qd6 14.Qd6 Nd6=) 12...Qd6 13.Bd6 ab5 14.Bf8 Kf8 15.Nc3 b4 16.Nb5 Bf5 17.d3 c4 18.Nd6 Bg6 19.Kd2 c3 (better is 19...b6!?+/–) 20.Ke2+– b6 21.Rhb1 d4 22.Rb4 de3 23.Rb6 ef2 24.Kf2 Nd5 25.Rb5 Nf4 26.Kf3 Ne6 27.Ke3 f5 28.Nf5 Re8 29.Nd6 Re7 30.Rf1 Kg8 31.Rb8 Nf8 32.Kd4 (32...Be8 33.Ne8+–) 1–0. guest1525 – guest2642, ICC, 2005.

4.Nf3 Bb4 5.Ne5 Ngf6 6.Nd7 Bd7 7.a5 c5 8.a6 b6 9.e3 0–0 10.Qf3 d4 11.c3 Bg4 12.Qb7 dc3 13.Bc3 Nd5 14.Bb2 Qg5 15.h3 Be6 16.Nc3 Nc3 17.dc3 Bd5 18.Qd7 Rfd8 (18...Bg2? 19.Bg2 Qg2 20.Qb7+–) 19.Qg4 Qf6 20.Rc1 Ba5 21.Be2 (21.Bb5 c4 22.0–0 Be6–/+) 21...Bc6 22.0–0 Rd2 23.Ba1 Bd7 24.Qf3 Qf3 25.Bf3 Rd8 26.c4 Bc8 27.Bc3 Bc3 28.Rc3 Kf8 (28...Ba6?! 29.Ra1 Bc8 30.Ra7=) 29.Bd5 b5 (29...Ra2 30.e4–/+) 30.Ra1 Rd6 (30...b4 31.Rcc1 b3–+) 31.Ra5 Rd1 32.Kh2 b4 (< 32...Ra6 33.Rb5 Ke7 34.Rc5+/–) 33.Rb3 R1d5 (better is 33...R6d5 34.cd5 Rc1+=) 34.cd5+– Rd5 35.Rb4! cb4 36.Rd5 Ke7 37.Rb5 Ba6 38.Rb4 Bc8 39.Rb8?? (39.Re4 Kd6+–) 39...Kd7 40.Kg3?? (40.e4 Kc7 41.Rb3 Be6 42.Rc3 Kb6+–) 40...Kc7?? (40...a6 41.Rb3 Ke7+–) 41.Rb5 Ba6 42.Rg5?? (42.Re5 Kb6+–) 42...g6 43.Rd5 Bb7 44.Re5 (44.Rd4 a5+–) 44...Kd7 (44...Kb6!?+–) 45.Ra5 a6 46.e4 Kc6 47.Kf4 f6 +–. market (2235) – 1BIGSHOW, GameColony.com, 2003.

4.Nf3 Bd6

5.Na3 f6 6.c4=+.

5.Na3 Ngf6 6.Nb5 0–0 7.Nd6= cd6 8.a5 b6 9.e3 ba5 10.Ra5 Bb7 11.Be2 Re8 12.0–0 Qb6 13.c3 a6 14.Qc2 Rec8 15.Qf5 Qd8 16.Rfa1 Qb6 17.R1a2 Qc6 18.R2a3 Nb6 19.Ba6 Nc4 20.b5 Qc7= 21.Bb7 Qb7 22.Ra8 Ra8 23.Ra8 Qa8 24.Bc1 h6 25.Qc2 Qb7 26.d3–/+ Nb6 27.Nd2 Nbd7 28.c4 dc4 29.dc4 Nc5 30.Ba3 Nfd7 31.Bc5 Nc5 32.f3 Qb6 33.Ne4 Ne6 34.Qd3 Qa5 35.h3 Qe1 36.Kh2 Nc5 37.Nc5 dc5 38.Qa3 Qd2 39.b6 Qd6 40.Qa8 Kh7 41.b7 e4 42.f4 1–0. market (2175) – saxe0 (1820), GameColony.com, 2002.

5.Na3 Ngf6 6.Nb5 Bb4 7.Ne5 Ne4 8.c3–/+.

5.Nc3 Ndf6=+.

4.Nf3 e4

5.Nd4 Bb4 6.Nc6 bc6 7.Bg7–/+.

5.Nd4 Ne5 6.Bc3 Nf6 7.a5 c6 (7...a6 8.e3=+) 8.e3 Bd6 9.a6 Bg4 10.Be2 Be2 11.Qe2 Nc4?? (better is 11...b6=) 12.ab7+– Rb8 13.Nc6 (13...Qc7 14.Nb8 Qb8 15.d3 ed3 16.cd3+–) 1–0. MT – guest1940, ICC, 2004.

5.Nd4 Ngf6

6.Bc3 c5 7.bc5 Bc5 8.e3 0–0 9.Be2 Nb6 10.a5 Nc4 11.0–0 Qc7 12.d3 Bd4 13.Bd4 Na5 (13...Ne5!?=) 14.Nc3–/+ Nc6 15.Bf6+– gf6 16.Nd5 Qe5 17.de4 Kh8 18.Bd3 f5 19.f4 Qg7 20.ef5 Rg8 21.Qf3 Qh6 22.Rfd1 Bd7 23.e4 Qh4 24.Bc4 Rad8 25.Qc3 Rg7 26.Nf6 Nb8 27.Ra7 Nc6 28.Rb7 h6 29.Rbd7 Rf8 30.Qa3 Rgg8 31.Ng8 Kg8 32.Qd6 Qg4 33.Rf7! Rf7 34.Bf7 Kf7 35.Qe6 Kf8 36.Rd7 Qg7 37.Rg7 Kg7 38.Qg6 Kf8 39.f6 h5 40.e5 h4 41.e6 h3 42.Qf7 1–0. Trokenheim – COMP, 2002.

6.Bc3 c5 7.bc5 Nc5 8.e3 Bd7 9.Bb5 a6 10.Bd7 Qd7 11.a5 Bd6 12.0–0 0–0 13.f3 Be5 14.Qe1 Rac8 15.f4 Bd6 16.Qg3 Rc717.Ne2 Be7 18.Be5 Nh5 19.Qf2 Bd6 20.Qh4 Be5 21.fe5 g6 22.g4 Ng7 23.Nbc3 Re8 24.Qg3 h5 25.Nf4–/+ d4? 26.Nfd5 dc3 27.dc3?? Qd5–+ 28.Rad1 Qa2 29.Ra1 Qc2 30.Rac1 Qe2 31.e6 Nge6 32.gh5 Qh5 33.Rb1 Nd3 34.Qg2 0–1. Trokenheim – COMP, 2002.

6.Bc3 c5 7.bc5 Nc5 8.e3 Bd7 9.Bb5 a6 10.Bd7 Qd7 11.a5 Bd6 12.0–0 0–0 13.f3 Be5 14.Qe1 Rac8 15.f4 Bd6 16.Qg3 Kh8 17.Ra2 Rfd8 18.Qg5 h6 19.Qg3 Qg4 20.Qg4–/+ Ng4 21.Nf5 Ne6 22.h3 Nf6 23.Nh6! Rc7 24.Nf5 Ne8 25.Rb2 Rdc8 26.h4 Kh7 27.h5 g6 28.hg6 fg6 29.Nd6 Nd6 30.Na3 Rf7 31.Be5 Rc6 32.Rfb1 Nc5 33.g4 Re7 34.Kf2+– Nf7 35.Bd4 Kg8 36.Rb6 Rec7 37.Ke2 Kf8 38.d3 Nh6 39.Be5 Rc8 40.Bd6 Ke8 41.Bc5 Rc5 42.Rg6 R8c6 43.Rg7 Ra5 44.Rbb7 Kf8 45.Rh7 Ng8 46.Rb8 Rc8 47.Rc8 1–0. Trokenheim – COMP, 2002.

6.Bc3 c5 7.bc5 Nc5 8.e3 Bd7 9.Bb5 a6 10.Bd7 Qd7 11.a5 Bd6 12.0–0 0–0 13.f3 Be5 14.Qe1 Rfc8 15.f4 Bd6 16.Qg3 Be7=+ 17.Ra2 Nh5 18.Qf2 Bf6 19.Qe2 g6 20.f5 Qd6 21.g4 Ng7 22.fg6 fg6 23.Nb5 ab5 24.Rf6 Qd7 25.Na3 Ne8 26.Rf4 Nd6 27.Rf1 Rf8 28.Rf8 Rf8 29.Bb4 Qc6 30.d4 Ne6 31.Bd6 Qd6 32.Nb5 Qb4 33.Kg2+= Re8 34.c3 Qb1 35.c4+– dc4 36.Qc4 Qd1 37.Qe2 Qb1 38.Nd6 Rd8 39.Rb2 Qc1 40.Rb6 Ng5 41.h4 Nf7 42.Nf7 Kf7 43.Qa2 Kg7 44.Rb7 Kh8 45.Qf2 Qc6 46.Qf7 Qb7 47.Qb7 g5 48.Qe7 Ra8 49.h5 h6 50.Qe5 Kg8 51.Qd5 1–0. Trokenheim – COMP, 2002.

3.Bb2 e4

4.Na3=+.

3.Bb2 f6

4.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.a4).

4.b5 Be6 5.d4 e4 6.e3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 e4 6.a4).

4.c3 a6 5.Nf3 Bd6 6.e3 Be6 7.Be2 Ne7 8.0–0 0–0 9.a5 Nd7 10.d3 h6 11.Nbd2 c6 12.Re1 Qc7 13.e4 de4 14.de4 c5 15.Bc4 Bc4 16.Nc4 Nc8 17.Qd5 Kh8 18.Rad1 Rd8 19.Nd6 Nd6 20.Qd6 Qd6 21.Rd6 1–0. guest1149 – guest225, ICC, 2003.

4.c3 c5 5.bc5 Bc5 6.e3 Bd6 7.Bb5 Nc6 8.Ba3 Nge7 9.Qh5 g6 10.Qf3 0–0 11.Bd6 Qd6 12.d3 f5 13.Ne2 a6 (13...Na5!? 14.d4 a6 15.de5 Qb6–/+) 14.Bc6=+ bc6 15.d4 e4 16.Qf4 Qd7 (16...Qf4 17.ef4 Rb8 18.Na3=+) 17.0–0 a5 18.Rd1 Ba6 19.Nc1 Rab8 20.Nd2 Rb2 21.Ncb3 Be2 (21...Qe8!?+=) 22.Rdb1–/+ Rb1 23.Rb1 Bd3 (23...Qa7!?–/+) 24.Nc5+– (24...Qd8 25.Ne6–/+ (25.Nd3?! ed3 26.Nf3 Re8–/+)) 1–0. lucya (2235) – Tsunamaelstrom (2285), GameColony.com, 2002.

4.c3 Bd6 5.Nf3=+.

4.c3 Be6 5.e3 Bd6 6.Qh5 g6 7.Qe2 Ne7 8.Nf3 0–0 9.a5 Nd7 10.a6 b6 11.d3 c5 (11...b5 12.Qd2=+) 12.b5 Rc8 13.Nbd2 Bf7 14.e4 Qc7 15.c4 d4 16.Qd1 f5 17.Be2 Kh8 18.0–0 Rg8 19.Ng5+= Rcf8 20.Nf7 Rf7 21.Re1 Nf8 22.Bf3 f4 23.Bg4 h5 24.Bh3 Kh7 25.Qf3 Qd8 26.Nb3 Kg7+= 27.Bc1 Rh8 28.Bd2 g5 29.g4 fg3 30.Qg3 g4 31.Bg2 Neg6 32.Rac1? Qd7 33.f3? h4?? 34.Qg4= Qg4 35.fg4 Ne6 36.Rcd1 Rhf8 37.Rf1+= Nef4 38.Rf3 Kh6 39.Rdf1–/+ 1–0. fajgo – HMP, internet, 2002.

3.Bb2 Nf6

4.Be5 Bb4 (--> 3.Bb2 Bb4 4.Be5 Nf6).

4.Be5 Nc6

5.d4 Ne5 6.de5 Ng4 7.Qd4 =+.

5.Bf4=+.

5.d4 Bb4

6.c3 Ba5 7.Bf6 gf6?! 8.e3 =.

6.c3 Ba5 7.Bf6 Qf6 8.e3 Bf5 9.Bd3 0–0 10.Bf5 Qf5 11.Nf3 Rfb8 12.0–0 g5 (12...Ne7 13.Qb3=) 13.h3 Kg7 14.Nfd2 Qe6 15.Nb3 f5 16.Qf3 h6 17.Rc1 Qf7 18.N1d2 Rf8 19.c4 Bd2 20.Nd2 dc4 21.Nc4 Rab8 22.Rab1 Qe7 23.a5 a6 24.Rc2 f4 25.d5 Na7 26.e4 Nb5 27.Rd1 Qc5 28.Rcc1 Rbd8 29.Kh2 Qa7 (29...Rfe8 30.e5 Nd4 31.Qh5+–) 30.e5 Qb8 31.e6 Rf5 32.Qe4 Rf6 33.Ne5 Rd6 (33...f3 34.e7 Rdd6+–) 34.Nd7 Rd7 35.ed7 Nd6 (35...Rf8 36.Qe7 Kg8+–) 36.Qe7 Nf7 37.Re1 c5 (37...c6+–) 38.Qe8 Qc7 39.Re7 Kg6 (39...f3 40.Kg1 Qa5+–) 40.Qg8 Kh5 41.Rf7 Rd6 42.Qe8 Re6 (42...Qd8 43.Rf6 Qe8 44.de8Q Kh4 45.g3 fg3 46.fg3) 43.Rh7 (43…Kh4 44.de6 g4 45.Rh6 Kg5 46.Qg6) 1–0. orane (2100) – cust (2060), Live Game Caissa's Web, 2004.

6.c3 Bd6 7.Bd6 Qd6 8.e3 Bf5 9.Nf3 Qe6 10.Be2 0–0 11.0–0 Rae8 12.Nbd2 b6 13.c4 Qd6 14.Rc1 Na5 15.c5 Qe6 16.cb6 Qb6 (16...cb6 17.Ng5 Qd6 18.Bb5=) 17.Ne5+= a6 18.Ndf3 (18.g4 Bc8+=) 18...Be4 19.Bd3 Rb8 20.Qe2 Bd3 21.Qd3 Rb7 22.Rb1 Qd6 23.Rb7 Nb7 24.Rb1 Nd8 25.a5 Ne4 26.Nd2 Nd2 27.Qd2 Re8 28.Qc2 f6 29.Nd3 Qa3 30.Qd2 (30.Nb4 Qa5 31.Qf5 c6+/–) 30...Ne6+= 31.h3 Rd8 32.Rb7 Qa1 33.Nc1 Qa4 34.Ne2 Qa1 35.Kh2 Qf1 36.Ng3 Qc4 37.Nf5 Qa4 38.Qe2 Ra8 (38...Qa5? 39.Ne7 Kh8 40.Qg4 Nd4 41.ed4+–) 39.Qg4 Qd7 40.Qg3 (40.g3 g6 41.Rb4 Kh8+=) 40...Kh8+= 41.Qf3 Qc6 42.Rb1 Re8 43.Rb3 (43.Qd1 g6 44.Ng3 f5+=) 43...Ng5= 44.Qf4 Nf7 (44...Ne6 45.Qf3=) 45.Qg3 g6 46.Nh4 Qc2 (46...Nd6 47.Qf3 Nc4 48.Rc3=+) 47.Rb4 (better is 47.Rb7!? Nd6 48.Ra7+=) 47...Nd6 48.Qf4 Kg7 49.Qg3 Qd2 (49...Ne4 50.Qg4 Qf2 51.Qd7 Kh6 52.Nf3 Qg3 53.Kh1 Nf2 54.Kg1 Re3 55.Rb7–+) 50.Ra4 Qc1 51.Ra2 (51…Re4 52.Re2=+) 1–0. lucya (2220) – zoput (2100), GameColony.com, 2002.

6.c3 Ne5 7.de5 Ba5 8.ef6 Qf6 9.Ra3 +/–.

6.c3 Ne5 7.de5 Ba5 8.ef6 Qf6 9.Qb3 +/–.

3.b5

3.b5 (--> 1.b4 e5 2.b5 d5 3.a4).

3.b5 c6 (--> 1.b4 e5 2.b5 c6 3.a4 d5).

3.b5 Nd7 4.Bb2 Ngf6 5.e3 (--> 1.b4 e5 2.b5 d5 3.Bb2 Nd7 4.e3 Ngf6 5.a4).

3.c3 a5

4.b5 b6 5.Nf3 Nd7 6.Qb3 Ngf6 7.d4 e4 8.Nh4 Ng4?? (8...Nb8+=) 9.e3?? (better is 9.Qd5 Qh4 10.Qe4 (10.Qa8?! Qf2 11.Kd1 Kd8+/–) 10...Be7 11.g3+–) 9...Nf2 10.Kf2 Qh4 11.Kg1 Qe1?? (better is 11...Nf6–+) 12.Qd5?? (better is 12.Bd2 Qh4 13.Qd5=) 12...Qc1–+ 13.Qe4 Be7 14.h3 0–0 15.Qe7= Nf6 16.Kh2 Qb2 17.Qa3 Qa3 18.Na3 Ne4 19.Be2 Bb7 20.Bf3 Rae8 21.Nc4 Bd5 22.Ne5 f6 23.Nd3 Bf7 24.Be4 Re4= 25.Rhe1 Be6?? 26.Nf4 Bf5 27.g4 Bc8 28.Nd5 Rf7 29.Ra2 Bb7 30.Nf4 Rfe7 31.Rae2 g6 32.d5 Ra4 33.e4 Rc4 34.Re3 a4 35.Ne6 a3 36.Ra1 Ra4 37.Kg3 a2 38.Kf3 c6 39.bc6= Bc6 40.Nd4 Kf8?? 41.Nc6+– Rg7 42.Nd8 Kg8 43.c4! h5 44.Rb3 Ra8 45.Ne6 Rh7 46.Kg3 h4 47.Kf4 g5 48.Kf5 Kf7 49.Rb6 Rh6 50.Ng5! Kg8 51.Rf6 Rf6 52.Kf6 Ra6 53.Ke5 Kg7 54.c5 Kg6 55.Nf3 1–0. maddoxdb – pheon1x, gameknot.com, 2013. (=1.c3 d5 2.b4 e5 3.a4 a5)

4.d4 ed4 5.Qd4 ab4 6.e4 –/+.

4.b5 Nf6

5.Ba3 Ba3 6.Ra3 Bf5 7.e3 Qe7 8.d3 Nbd7 9.Ne2 0–0 10.g3 (10.Ng3!? Be6 11.Be2–/+) 10...Nc5 11.e4?? (Better is 11.Nc1–+) 11...Nd3!! (< 11...de4 12.Nc1–+) 12.Qd3 Be4 13.Qd1 Bh1 14.Qb3 Qc5 15.Nd2 Ng4 16.Nd4 ed4 17.h3 Rfe8 18.Be2 d3 19.hg4 Re2 20.Kd1 Qf2 21.Ra2 Qe1 0–1. marsman – Caissa, Live Game Caissa's Web, 2004.

5.d4 ed4 6.cd4 Bd6 7.Ba3 =+.

5.Nf3 Bd6 6.Ba3 0–0 7.e3 e4 8.Nd4 Nbd7 9.Bd6 cd6 10.Be2 Nc5 11.0–0 Ne6 12.d3 Nd4 13.cd4 Bf5 14.Qd2 Qb6 15.f3 ed3 16.Bd3 Bd3 17.Qd3 Rfe8 18.Nd2 Re7 19.Rac1 Rae8 20.Rfe1 h6 21.Nb3 Qa7 22.Rc2 Nd7 23.Nd2 Nb6 24.Qb3 Qb8 25.Re2 Rc7 26.h3 Rec8 27.Rc7 Qc7 28.Re1 Qc3 29.Qc3 Rc3 30.g3 Rd3 31.Nb1 Na4 32.Kf2 Nb6 33.Rc1 Nc4 34.Rc3 Rd1 35.Na3 Rd2 36.Kf1 Rb2 37.Nc4 dc4 38.Rc4 Rb5 39.e4 Rb2 40.Rc8 Kh7 41.Ra8 b6 42.Ra7 Kg8 43.Ke1 Rb4 44.Rb7 a4 45.Rb8 Kh7 46.Kd2 b5 47.Kc2 Rb3 48.g4 g5 49.Rb6 Rf3 50.Rb5 Re3 51.Rb6 Re4 52.Rd6 a3 53.Ra6 Re3 54.d5 Re5 55.d6 Rd5 56.Kb3 Rd3 57.Kc4 Rd1 58.Kc5 Rd3 59.Kc6 Rh3 60.d7 Rd3 61.Ra3 Rd1 62.Ra5 Rd7 63.Kd7 Kg6 64.Ra6 f6 65.Ke7 1–0. guest1149 – guest21, ICC, 2003.

5.d4 e4

6.e3 Bg4 7.Qb3 =.

6.Bg5 Be7 7.e3 =+.

6.Bf4 Nh5

7.Bc1 Bd6 8.e3 Qh4 9.Be2 Nf6 10.Ba3 =.

3.c3 b6

4.a5 ba5 5.Qa4 c6 6.ba5 g6 7.Ba3 Be7 8.Be7 Ne7 9.e3 Qd6 10.Nf3 Bd7 11.d4 c5 12.Bb5 (12.de5 Qc7 13.Qf4 Bf5+/–) 12...Nec6 13.de5 Ne5 14.Ne5 Qe5 15.Bd7 Nd7 16.0–0 Qc7 (better is 16...Qe6!?=) 17.Rd1+/– c4 (better is 17...Rd8+/–) 18.Rd5+– Rd8 19.f4 (better is 19.Na3 0–0 20.Qc4 (20.Nc4?! Nc5 21.Qd1 Ne4+/–) 20...Qc4 21.Nc4+–) 19...0–0+/– 20.e4?? (better is 20.Rd4+/–) 20...Nf6 21.Rd8 Rd8 22.Na3 Qc5 (22...Qf4 23.Rf1 Qe3 24.Kh1 Ne4 25.Qc4 Nf2 26.Rf2 Qf2 27.h4 Rd1 28.Kh2 Qg1 29.Kh3 Qe3 30.Kh2 Qe5 31.Kh3 h5 32.Qf1 Rf1 33.g3 Qe2 34.g4 Rf3) 23.Kh1 Ne4 24.h3 Nc3 25.Qc4 Qa5 26.Kh2 Nd1 27.Qe2 Nc3 28.Qb2 Qc7–/+ 29.Rf1 Rb8 30.Qf2 a5 31.Nc2 Qd6 32.Nd4 a4 33.Kh1 a3–+ 34.f5 Ne4 35.Qf4 Qf4 36.Rf4 Nc3 37.Rf1 Rb2 38.fg6 hg6 39.Rf3 a2 40.Rc3 a1Q 41.Kh2 Rg2! 42.Kg2 Qc3 43.Nf3 Qe3 44.Kg3 Kg7 45.h4 f6 46.Kg4 Qe4 47.Kg3 f5 48.Kf2 f4 49.h5 gh5 50.Nh4 Qe3 51.Kg2 Qg3 52.Kf1 Qh4 53.Ke2 Qg3 54.Kf1 h4 55.Ke2 h3 56.Kf1 Qg2 57.Ke1 h2 58.Kd1 h1Q 0–1. maddoxdb – gabriel413, gameknot.com, 2012. (=1.c3 d5 2.b4 e5 3.a4 b6)

4.a5 b5 5.e3 a6 6.Nf3 e4 7.Nd4 g6 8.Be2 f5 9.g4 (9.Bb2!?+=) 9...Nh6 10.h3 Nf7 11.Bb2 Be7 12.gf5 gf5 13.Bh5 Rf8 14.f3 Bh4 15.Ke2 Qg5 16.Bf7 Rf7 17.Rg1 Qh5 18.Rg8 Rf8 19.Rf8 Kf8 20.Qg1 c5 (better is 20...Nc6! 21.Qh1 Nd4 22.cd4 Be7–/+) 21.bc5= Nd7 22.Ne6 (22.Qh2!?+=) 22...Ke7 23.Nc7?? (23.Nd4 Kf8 24.Qh2+=) 23…Qf3 0–1. maddoxdb – kukushka, gameknot.com, 2012. (=1.c3 e5 2.b4 d5 3.a4 b6)

3.c3 c5

4.Qb3 Nc6 5.Ba3 cb4 6.cb4 Nf6 7.e3 Bd6 8.b5 Ne7 9.Ne2 Be6 10.d4 0–0 11.Bd6 Qd6 12.de5 Qe5 13.Qc3 Ng6 14.Nd2 Rac8 15.Qe5 Ne5 16.Nd4 Bd7 17.Be2 Rc3 18.N2f3 Nc4 19.0–0 Rc8 20.Rfc1 Na5 21.Rc3 Rc3 22.Ne5 Be8 23.Bf3 Ne4 24.Ne2 Rc2 25.Nd3 f6 26.Nb4 Rc5 27.Nd5 Rd5 28.Be4 Rc5 29.Rd1 Kf8 30.Bh7 g6 (better is 30...Rc4+–) 31.Nf4 Kg7? (31...Rc4 32.Bg6 Rf4 33.Be8 Ra4+–) 32.Ne6 Kh7 33.Nc5 a6 (33...b6 34.Ne4 Kg7 35.Rd8+–) 34.Rd8 Bf7 35.Nb7! Nb7 36.Rd7 Nd6 (36...Kh6+–) 37.ba6 Kg8 38.Rd6 1–0. JenSpeed (2210) – Zascataplas (1810), FICS rated standard game, 2013. (=1.a4 e5 2.c3 d5 3.b4 c5)

4.bc5 Bc5 5.d4 ed4 6.cd4 Qa5 7.Bd2 Bb4 8.Bb4 Qb4 9.Qd2 Nc6 10.e3 Bf5 (10...Nf6 11.Bd3=) 11.Bb5 Qd2 (11...Qd6 12.Ne2=) 12.Nd2 Rc8 (12...Nge7 13.a5=) 13.a5 (13.Ne2 a6 14.Ng3 Nge7 15.Bc6 Rc6=) 13...Nf6 14.a6 b6 15.Rc1 Bd7 16.Ngf3 (16.Ne2 Ke7=) 16...0–0 (16...Ke7 17.Rb1=) 17.Ke2 Ne7 (17...Rfe8 18.Rb1+=) 18.Bd3 Rc1 19.Rc1 Rc8 20.Rc8 (20.Nb3 Nc6+=) 20...Bc8 21.Ne5 (21.Ne1 Nd7+=) 21...Nd7 (21...Ne8!?=) 22.Nd7+= Bd7 23.f3 Nc6 24.Nb1 Nb4 25.Nc3 Bc6 (25...Kf8 26.Kd2+= (< 26.Bh7 g6–/+)) 26.e4 de4 27.fe4 g6 (27...f5 28.Bc4 Kf8 29.d5+/–) 28.d5 (28.Bc4 Kf8+/–) 28...Bd7 29.e5 Bg4 30.Ke3 Nd3 31.Kd3 Kf8 (31...Bc8 32.Kd4+/–) 32.Nb5 (32.d6 Bc8 33.Nd5 Ke8+/–) 32...Bc8+/– 33.Na7 Ba6 34.Kd4 Bf1 (34...h6 35.h4+/–) 35.g3 Bg2 (35...Ba6 36.h3+–) 36.Nc8 b5 37.Nb6 b4 (37...Ke7 38.Kc5+–) 38.Kc4 f6 (38...f5+–) 39.Nd7 Ke7 40.Nf6 b3 41.Kb3 h5 (41...Bd5 42.Nd5 Ke6 43.Kc4 Ke5 44.Kc5+–) 42.Kc4 g5 (42...Bh3 43.Kc5+–) 43.Nh5 g4 (43...Bh3 44.Nf6+–) 44.d6 Ke6 (44...Kf7 45.Nf4 Bc6+–) 45.Nf4 (45...Kd7 46.Ng2+–) 1–0. Trkn – guest656, ICC, 2004.

4.bc5 Bc5 5.d4 ed4 6.cd4 Bb4 7.Bd2 Qa5 8.Bb4 Qb4 9.Qd2 Nc6 10.Qb4 Nb4 11.Kd2 Bf5 12.Nc3 Nf6 13.a5 0–0 (13...Nc2 14.Ra4=) 14.e3 Rac8 15.Ra4 Nc6 (15...Rc3 16.Kc3 (16.Rb4?? Ne4 17.Ke1 Rc1 18.Ke2 Rc2 19.Ke1 Nf2–+) 16...Ne4 17.Kb4 Nf2 18.Ne2 Nh1 19.Nc3=) 16.Ra3 a6 17.Nge2 Rfe8 (17...h5 18.Nf4 Rfd8 19.h4+=) 18.Nf4 Ne7 (18...Red8 19.Be2+=) 19.Bd3 Bd3 20.Nd3 Nd7 (better is 20...Nf5!? 21.Rb3 Nd6+=) 21.Rb3 Rc7 22.Rhb1 Rec8 23.Rb7 Rc3 24.Rd7 Rc2 25.Kd1 (25...Nf5 26.Rb6+– (26.Rd5?! Rf2 27.Ke1 Ne3 28.Kf2 Nd5+/–)) 1–0. Marre – tzmz49, zagraj.pl, 2003.

4.bc5 Bc5 5.d4 ed4 6.cd4 Bb4 7.Bd2 Nc6 8.Nf3 Qa5 9.e3 Bg4 10.Bb4 Nb4 11.Bb5 Ke7 12.0–0 a6 13.Be2 Nf6 14.Nbd2 Ne4 15.Ne4 de4 16.Ne5 Be2 17.Qe2 Nd5? (better is 17...f6 18.Nc4 Qf5+–) 18.Rab1 Rab8 (18...f5 19.Rb7 Ke6+–) 19.Rb7!? Rb7 (19...Ke6 20.Nc6 Qd2 21.Qd2 (21.Rb8?! Qe2 22.Rh8 Nc3+=) 21...Rb7 22.f3+–) 20.Nc6 Kd7 (20...Kf6 21.Na5 Rbb8 22.Qh5+–) 21.Na5 Rb4 (21...Rc7 22.Qg4 Kd6 23.Qg3 Kd7 24.Qg7 Rhc8 25.Qf7 Kd6 26.Nb7 Kc6 27.Qe6 Kb7 28.Qd5 Ka7 29.Qe4 Rd7+–) 22.Qg4 Kd6 23.Rc1 Rhb8 24.Qg7 Rb1 25.Qe5 Kd7 26.Qd5 Ke8 27.Qe4 Kf8 28.Rb1 (28.Rb1 Rb1 29.Qb1+–) 1–0. miehnekort – muertolh, Yahoo, 2005.

4.bc5 Nc6 5.Ba3 a5 6.e3 Nf6 7.Bb5 Bd7 8.Nf3 e4 9.Ng5 Be7 10.Bc6 (10.d4 h6 11.Nh3 Bh3 12.gh3 Qd7=) 10...Bc6 11.h3?? (better is 11.d4!?+=) 11...0–0 (11...h6 12.Nf7 Kf7 13.d4–+) 12.Qb3? (12.h4!?–/+) 12...Qd7 13.c4 dc4 (13...Ba4?! 14.Qa2 h6 15.cd5–+) 14.Qc4 Rac8?? (better is 14...h6!? 15.d4 hg5–+) 15.Nc3 Qf5 16.h4 h6 17.Nh3 Rfd8 18.Ne2 Ng4 19.Bb2 Bd5 20.Qb5 Rc5 21.Nd4 Rb5 22.Nf5 Rb2 23.Ne7 Kf8 24.Nd5 Rd5 25.0–0 Rdd2 26.Rac1 Ne3 27.Rc8 Ke7 28.Rfc1? Nd5 29.R8c5 b6 30.Rc8 f5 31.Rg8 Kf7 32.Rcc8 Nf6 33.Rgf8 Ke7 34.Rb8 Rd6 35.Nf4 Rbd2 36.Ng6 Ke6 37.Nf4 Kd7?? 38.Rf7 Kc6 39.Rc8 1–0. maddoxdb – solascriptura, gameknot.com, 2012. (=1.c3 e5 2.b4 d5 3.a4 c5)

3.c3 c6

4.e3 Bd6 5.b5 c5 6.Qf3 Ne7 7.c4 Be6 8.a5 e4 (8...dc4?! 9.Nc3=) 9.Qd1 dc4 10.Qc2 a6 11.Bc4 Bf5 12.b6 0–0 13.Nc3 h5 (13...Nbc6 14.Ne4 Nb4=) 14.Nd5?? (better is 14.Ne4 Nbc6 15.Bb2+/–) 14...g5?? (better is 14...Nbc6!? 15.Nc3 Be5–/+) 15.Qc3?? (better is 15.Nf6 Kg7 16.Nh5 Kh6 17.Ng3+–) 15...Nd5= 16.Bd5 Qd7?? (16...Nd7 17.Qc2 Nb6 18.Bb7+=) 17.Qf6 (17.Bb2 Be5 18.Qe5 Qd5 19.Qg7) 17...Be7= 18.Qh6?? (better is 18.Qe5 Bd6 19.Qf6=) 18...Qd5–+ 19.Bb2 f6 20.Qh5 Rd8 21.Bc3 Qf7 22.Qf7 Kf7 23.Ne2 Nc6 24.0–0 Bg4 25.Ng3 Kg6 26.h3 Be2?? 27.Ne2+/– Ne5 28.Be5 fe5 29.g4 Rd2+= 30.Nc3 Rd5?? 31.Nd5+– Bd6 32.Rad1 Rd8 33.Nc3 1–0. maddoxdb – wilfredshunk, gameknot.com, 2013. (=1.c3 d5 2.b4 e5 3.a4 c6)

4.e3 Nf6 5.b5 Bc5 6.bc6 Nc6 7.Bb5 Bd7 8.Ba3 Qe7 9.Bc5 Qc5 10.d4 ed4 11.ed4 Qd6 12.Qe2 Be6 13.Nf3 0–0 14.Bc6 bc6 15.Ne5 Rfe8 16.Qa6? (16.0–0 Nd7+=) 16...Bd7 (better is 16...Bc8!? 17.Qe2 Ng4–+) 17.0–0+= Ng4 18.Ng4 Bg4 19.Nd2? (better is 19.f3 Bc8 20.Qd3–/+) 19...Be2–+ 20.Qa5 Bf1 21.Nf1 g6 22.Ne3 Reb8 23.Qc5? (better is 23.Re1–+) 23...Qc5 24.dc5 Rb3 25.Nd1 Rd8 26.g3 d4 27.c4 (27.cd4 Rd4 28.Kf1–+) 27...Rb4 28.f4 Rc4 29.Rb1 Rc5 30.Nf2 d3 31.Rd1 d2 32.Ne4 (32.Kf1–+) 32…Rc1 (32...Rc1 33.Nf2 Re8–+) 0–1. maddoxdb – 202b, gameknot.com, 2012. (=1.c3 e5 2.b4 d5 3.a4 c6)

4.e3 g6 5.d4 e4 6.b5 cb5 7.Bb5 Bd7 8.Qg4 f5 9.Bd7 Qd7 10.Qf4 Bd6 11.Qh4 Be7 12.Qh3 Nf6 13.Ba3 Nh5 (13...Qa4 14.Ne2–/+) 14.Ne2 (14.Be7 Qe7 15.Nd2 Nc6=) 14...Nc6 (better is 14...Qa4!? 15.f3 Qc2–/+) 15.Be7= Qe7 16.Ng3 Qg5 17.Nh5 gh5 18.Qg3 Qg3 19.hg3 Na5 20.Na3 a6 21.Rb1 Rb8 22.Rb6 0–0 23.Rh5 Rbc8 24.Kd2 Rc7 25.Rg5 Kh8 26.Kc2 Rg8? (better is 26...Nc6!?+/–) 27.Rf5+– Rc6 28.Rc6 (28.Rd5?! Rb6 29.Ra5 Rf6=) 28...bc6 29.Rf7 h6 30.Ra7 Rb8? (30...Rf8 31.f4 ef3 32.gf3 Rf3 33.Ra6 Rf2 34.Kd3 Nb3+–) 31.Ra6 Nb7 32.Rc6 Kg7 (32...Rf8 33.f3 ef3 34.gf3 Rf3 35.Rh6 Kg8 36.Rb6+–) 33.Nb5 (better is 33.Rb6 Kf8+–) 33...Na5 34.Rc7 Kg6 35.Rd7 (better is 35.f3 Nc4 36.fe4 Ne3 37.Kd3+–) 35...Nc6 (35...Rf8 36.f4 Nc4+–) 36.Rd6 Kh5 37.Rc6 Rf8 38.f3! ef3 39.gf3 Rf3 40.Kd3 Rg3 41.Nc7 Rg5 42.Rc5 Kg4 43.a5 1–0. maddoxdb – chaz5, gameknot.com, 2013. (=1.c3 d5 2.b4 e5 3.a4 c6)

3.c3 Nc6

4.a5 a6 =+.

4.b5 Na5 5.e3 Nf6 6.Ba3 Nc4 7.Bc4 dc4 8.Bf8 Rf8 9.Qe2 Be6 10.Na3 Bg4 (10...Qd5!? 11.Nf3 Ne4–/+) 11.f3= Bf5 12.Qc4 (12.Nc4? Bd3 13.Qf2 Bc4–+) 12...Be6 13.Qh4 b6 (better is 13...Qd3!?=) 14.Qg3 e4 15.f4 (15.Qg7?! Rg8 16.Qh6 Rg2=) 15...g6 16.Ne2 Bf5 17.Nd4 Ng4 18.h3 Nf6 19.Qg5 Nd5 20.Qd8 Rd8 21.Nf5 gf5 22.Nc4 Rg8 23.Ne5 (better is 23.Rg1!?+/–) 23...Rg2= 24.0–0–0 f6 25.Rhg1?? (better is 25.Nc6 Rd7 26.Rdg1+=) 25...Rg1–+ (25...fe5 26.Rg2 ef4 27.Rg8 Ke7 28.Rd8 Kd8 29.c4+=) 26.Rg1 fe5 27.fe5 Kf7 28.Rg5 Ke6 29.Rh5 Rd7 (worse is 29...Ke5 30.Rh7 Kf6 31.Rh6 Kg5 32.Re6–+) 30.c4 Nb4 31.Rh6 Kf7 (better is 31...Ke5 32.Kb2 Rd2 33.Kc3 Rd6 34.Rh7 a5 35.Re7 Kf6 36.Rc7 Rd3 37.Kb2 Re3–+) 32.Rh7 (better is 32.e6 Ke7 33.ed7 Kd7 34.Rh7 Kd6 35.Rf7+–) 32...Ke6–+ 33.Rh8 c6 34.Rh6 Ke5 35.bc6 Rc7 36.Rh8 Nc6 37.h4 Kf6 38.h5 Kg7 39.Re8 Kh6 40.Rf8 Kg5 41.h6 Rh7 42.Rg8 Kh6 43.Rf8 Kg6 44.Re8 Na5 45.Rc8 Rh1 46.Kc2 Ra1 47.Ra8 Ra4 48.Ra7 Rc4 49.Kd1 Kf6 50.Rh7 b5 51.Rh6 Kg5 52.Ra6 Ra4 53.Ke2 b4 54.Rb6 b3 55.d3 Ra2 56.Kf1 ed3 57.Ke1 Rh2 58.Rb5 Nc4 59.Rb3 Rh1 60.Kf2–+ d2 61.Rd3 d1Q 62.Rd1 Rd1 63.Kf3 Re1 64.e4 Re4 65.Kf2 Re3 66.Kf1 Kg4 67.Kg2 f4 68.Kf2 f3 69.Kf1 Re2 70.Kg1 Kg3 71.Kf1 Nd2 72.Kg1 Re1 0–1. maddoxdb – rogergomes, gameknot.com, 2012. (=1.c3 e5 2.b4 d5 3.a4 Nc6)

4.d4 ed4 5.b5 Na5 6.cd4 b6 7.Nf3 Nf6 8.Ne5 (8.Qc2 a6 9.e3 Bd6=) 8...Bb7 (8...Ne4!? 9.Ba3 Qf6=+) 9.e3 Bd6 10.Bd3 Be5 11.de5 Ne4 12.Qg4 0–0 13.Nd2 (13.0–0 f5 14.Qf4 Nb3=) 13...Nd2 (better is 13...f5!? 14.Qh3 Qe8=) 14.Bd2+/– Nb3 15.Rd1 Nc5 16.Bc2 Bc8 17.Qh5 g6 18.Qf3 (18…Qh4 19.Qf4+=). Trkn – guest4728, ICC, 2004.

4.d4 ed4 5.b5 Na5 6.cd4 Nf6 7.e3 =+.

4.d4 ed4 5.b5 Na5 6.Qd4 Nb3 7.Qe3 Be6 –+.

4.d4 e4 5.a5 Bd6 6.a6 ba6 (6...b5 7.Na3 Rb8 8.Nc2=+) 7.Nh3 Nf6 8.Qb3 (8.Nf4 a5 9.Qa4 Qd7=+) 8...Be6 (8...Rb8!?=+) 9.Nf4 0–0 10.Ra6 (better is 10.Ne6 fe6 11.f4=+) 10...Nd4?? (better is 10...Ne7=+) 11.cd4+– Rb8 (11...Bc8 12.Ra1+–) 12.b5 (12.Ra7 Bb4 13.Nc3 e3 14.Ne6 ef2 15.Kd1 fe6=; 12.Ne6?! fe6 13.Qh3 Qc8+/–) 12...c6 (12...Bc8 13.Ra7 c6 14.e3+–) 13.Ne6 (13.Rc6 Qa5 14.Bd2 Rb5+–) 13...Rb5?? (13...fe6 14.Qh3 Qe7 15.Rc6 Rb5+/–) 14.Qb5! (14...cb5 15.Nd8 Rd8 16.Ra7+–) 1–0. Trkn – guest7739, ICC, 2004.

4.d4 Nf6 5.b5= Na5 6.de5 Nd7 (6...Ne4!?=) 7.Qd5+/– Qe7 (7...c6 8.Qd1+/–) 8.Nf3 Nf6?? (better is 8...c6 9.bc6 Nc6+–) 9.ef6+– gf6 (9...Qf6 10.Bg5 Be6 11.Qd4 (< 11.Bf6 Bd5 12.Be5 Nb3+–) 11...Qd4 12.Nd4+– (12.cd4?! Nb3 13.Ra2 Bb4 14.Nbd2 h6+–)) 10.Ba3 b6 (10...Qe6 11.e4 Ba3 12.Na3 Qe7+–) 11.Be7 Be7 12.Qa8 Nb7 13.Qc8 Bd8 14.Qb7 Ke7 15.a5 Kd6 16.a6 Be7 17.Qc6# 1–0. Trkn – guest5846, ICC, 2004.

3.c3 d4

4.Ba3 a5 =+.

4.Ba3 Nf6 5.c4 Na6 6.b5 c5?? 7.d3?? e4?? 8.ba6+– ba6 9.f4 ed3 10.ed3+– Bg4 11.Be2 Qa5 12.Qd2 Qa4 13.h3 Bd7 14.Nf3 0–0–0? 15.Qd1 Bd6 16.g3 Rhe8 17.Nbd2 Re3 18.Nf1 Re7 19.Ng5?? Rde8 20.Ra2?? Qa5 21.Qd2?? Re2 22.Kd1 Rd2 23.Rd2 Qa3 24.Nf7 Ba4 25.Rc2 Qd3 26.Kc1 Qc2# 0–1. yeatond – dyeaton, net–chess.com, 2005.

4.Bb2 Nc6 5.b5 Na5 6.cd4 ed4 7.Nf3 Bc5 8.Qc2 b6 (better is 8...Qd5!? 9.e4 de3 10.fe3 f6=) 9.e3 d3 (better is 9...Bb7!? 10.Nd4 Nf6+/–) 10.Bd3+– Be6?? (better is 10...Nf6+–) 11.Bg7 Bb3 12.Qc3 (12.Bh8?! Bc2 13.Bc2 Nf6+–) 12...f6 13.Bh8 Qd6 14.Bh7 Bb4 (14...0–0–0 15.0–0+–) 15.Bg6 Ke7 16.Qb2 c5 17.Nc3 Rd8 18.Ne4 Qd3 (18...Qe6+–) 19.Bf6 Nf6 20.Qe5 (better is 20.Qf6 Kd7 21.Ne5 Kc7 22.Nd3 Rd3 23.Qe5 Kb7 24.Nd6 Rd6 25.Qd6 Bd2 26.Qd2 Be6 27.Qd8 Bd5 28.Qd5 Kc7 29.Qf7 Kb8 30.Qe8 Kc7 31.Rd1 Nc4 32.Rd7) 20...Kd7 21.Bf5 Be6 22.Be6 Ke7 (22...Ke8 23.Bg4 Kf8 24.Qf6 Ke8 25.Qh8 Kf7 26.Ne5 Ke7 27.Qf6 Ke8 28.Qf7) 23.Qf6 (23.Qf6 Ke8 24.Qf7; 23.Nf6?! Bd2 24.Nd2 Qd2 25.Kf1 Qd3 26.Ke1 Qd2 27.Kf1 Qd3 28.Ke1 Qd2 29.Kf1=) 1–0. b4_player – nn, internet, 2013. (=1.c3 d5 2.b4 e5 3.a4 d4)

4.Qb3 Be6 5.Bb2?? Bb3–+ 6.Na3 Nf6 7.Nc2 Bc2 8.Nf3 d3 9.ed3 e4 10.de4 Ne4 11.Bd3 Qd3 12.Rc1 Ba4 13.Ne5 Qd2 14.Kf1 Qf2# 0–1. idontknow – cacook (1620), net–chess.com, 2006.

4.Nf3 dc3 5.Nc3 (5.Ne5? Qd4 (5...Bb4?! 6.Qb3 cd2 7.Nd2=+) 6.Nf7 cd2 7.Nd2 Kf7–+) 5...Bb4 6.Ne5 Bc3 7.dc3 Qd1 8.Kd1 Be6 (8...Nf6 9.f3+=) 9.Bf4 (9.Ke1 Nf6=) 9...Nd7 10.Nd7 (10.Ke1 0–0–0=) 10...Bd7 (better is 10...0–0–0!?=) 11.Bc7+/– f6 (11...Nf6 12.Be5+/–) 12.Kd2 (12.e4 Rc8 13.Bf4 f5 14.ef5 Bf5+/–) 12...b6 (12...Bc6!?+/–) 13.a5 Rc8 (better is 13...b5+–) 14.ab6 ab6 15.Bb6 Ne7 (15...Rb8 16.Bd4+–) 16.e4 0–0 (16...Bc6 17.Bd3 Rb8+–) 17.Ra7 Rc6 (17...Rcd8 18.Bd8 Rd8 19.Ke3+–) 18.Rd7 Rb6 19.Re7 Rd8 (19...Rb2 20.Ke3+–) 20.Kc1 (20.Kc2 Kf8 21.Rc7 Rbd6+–) 20...Ra8 (20...Rc6 21.Kc2+–) 21.Bc4 Kf8 22.Rf7 Ke8 23.Kc2 Rab8 (23...Rc8 24.Bd5 Rbc6 25.Bc6 Kf7 26.Bd5 Ke7 27.Ra1+–) 24.Rg7 Rb2 25.Kd3 Rd8 (25...R2b7 26.Rg8 Ke7 27.Rb8 Rb8 28.Ra1+–) 26.Ke3 (better is 26.Bd5 Rd7 27.Rg8 Ke7 28.Ra1+–) 26...Kf8 (26...Rc2 27.Rb1 Rc3 28.Kf4 Rc4 29.Rh7+–) 27.Rh7 (better is 27.Rf7 Ke8 28.Ra1 Rdb8+–) 27...Rdd2 (27...Rc2 28.Ra1 Rc3 29.Kf4 Rc4 30.Rh8 Ke7 31.Ra7 Ke6 32.Rd8 Rc5+–) 28.Ra1 Rd8 29.Raa7 Rc2 30.Rh8# 1–0. Trkn – guest3593, ICC, 2004.

4.Nf3 Nd7 5.Ba3 c5 (5...a5!?=) 6.bc5+= Qc7 7.cd4 ed4 8.Nd4 Bc5 9.Nb5 Qc6 10.d4 Ba3 11.Ra3 (11.N5a3?! Ngf6+/–) 11...a6 12.Rc3 Qd6 (12...ab5 13.Rc6 bc6 14.ab5 cb5+–) 13.Nd6 (13.Nd6 Ke7 14.Nc8 Kd8 15.Nd6+–) 1–0. orane – gsbs, internet, 2003.

3.c3 Bd6

4.d4 e4 5.Na3 c6 6.Qb3 Qf6 7.c4 (7.h4 h6–/+) 7...Ne7 (7...Qd4 8.Bb2 Qb6 9.Bg7 (9.cd5? Bb4 10.Bc3 Ba5–+) 9...Bb4 10.Kd1+=) 8.c5+= Bc7 (8...Qd4?? 9.Bb2 Bc5 10.Bd4 (10.bc5?! Qc5 11.Bg7 Rg8+/–) 10...Bd4 11.Rc1+–) 9.Nc2 0–0 10.Nh3 h6 11.Qc3 a5 12.b5 b6 13.Ba3 Be6 14.g3 Rc8 15.Nf4 cb5 16.ab5 Bf4 17.gf4 bc5 18.Bc5 Nd7 19.Qa3 Ng6 (worse is 19...Qf4 20.Bd6 Qf5 21.Ne3+/–) 20.e3 Nh4 21.Be2 Qg6 (worse is 21...Nc5 22.dc5 Ng2 23.Kd2=) 22.Kd2 Qg2 23.Rhf1 (23.Raf1 Bg4 (23...Nc5?! 24.dc5 Nf5 25.Ke1=) 24.Ne1 Qh3 25.Bg4 Qg4–/+) 23...Nf3 (23...Nf3 24.Bf3 ef3–/+; 23...Nc5?! 24.dc5 a4 25.b6=) 0–1. marekt (2430) – Sadik (2230), ChessWorld.net, 2003.

4.d4 e4 5.Na3 c6 6.b5 Qa5 7.Bd2 Ba3 (better is 7...e3!? 8.Be3 Qc3 9.Bd2 Qd4–/+) 8.Ra3= cb5 9.e3 ba4 10.c4 Qd8 11.Qa4 Bd7 12.Qb3 Bc6 13.Nh3 Ne7 14.Nf4 0–0 15.Qa2 a6 16.c5 g5 17.Nh5 Ng6 18.Be2 Nd7 19.Ba5 Qe7 20.0–0 f5 21.f4 gf4 22.Nf4 Nf6 23.Qb3 Kh8 24.Bd1 Rg8 25.Ng6 hg6 26.Rf4 Kg7 27.Be2 Qe6 28.Bc7 Nd7 29.Ra5 g5 30.Rf1 Raf8 31.Bd6 Rf6 32.Qb4 Rh6 33.Raa1 Rgh8 34.Bg3 Rf8 35.Rf2 Rhf6 36.Bd6 R8f7 37.Bh5 f4 38.Bf7 Qf7 39.Qd2 f3 40.Qa5 fg2 41.Rg2 Rf5 42.Qd8 (42…Qg6 43.Be7+–) 1–0. Marre – kania33, zagraj.pl, 2003.

3.c3 Be7

4.Bb2 Nc6 5.e3 Bf5 6.d4 ed4 7.ed4 Nf6 8.Nf3 0–0 9.Bd3 Qd7 10.0–0 Bd3 11.Qd3 Ne4 12.Nbd2 Nd2 13.Qd2 Qg4 14.Rfe1 Rae8 15.Re3 (15.Qd3 a6+=) 15...Bd6 16.Rae1 (16.Ree1 a6=) 16...Bf4+= 17.Re8 Bd2 18.Nd2 Qd7 (18...Nd8 19.R8e5 Ne6 20.Nf1–/+ (20.Rd5?? Nf4 21.g3 Nd5–+)) 19.Rf8+= Kf8 20.Ba3 (20.b5!? Nb8 21.Ba3 Kg8 22.Re7+=) 20...b5–/+ 21.ab5 Nb8 22.b6 ab6 23.b5 Kg8 24.Re7 Qb5 25.Rc7 Qa6 26.Re7 h5 27.Bb4? Nc6 28.Re1 Nb4 29.cb4 f6 30.f3? Qd3 (30...Qd3 31.Nf1 Qd4 32.Re3 f5–+) 0–1. Fournier,Frederic – Mephisto Mondial, France (FRA), 1994. (=1.a4 e5 2.c3 d5 3.b4 Be7)

4.Bb2 Nc6 5.e3 Bf5 6.d4 ed4 7.ed4 Nf6 8.Nf3 0–0 9.Bd3 Qd7 10.0–0 Bd3 11.Qd3 Ne4 12.Nbd2 Nd2 13.Qd2 Qg4 14.Rfe1 Rae8 15.Re3 Bd6 16.Re8 Re8 17.Re1 Re4 18.h3 Qf4 19.Qf4 Bf4 (19...Rf4? 20.Re8 Bf8 21.Rc8+–) 20.Kf1 h5 21.Re4 de4 22.g3 ef3 23.gf4 Ne7 24.c4 Ng6 25.Bc1 f5 26.Kg1 Kf7 27.Kh2 h4 28.Kg1 c6 29.Kf1 Ke6 30.Ke1 a6 (30...b5 31.ab5 cb5 32.d5 Kd6 33.cb5 Kd5 34.Be3–/+) 31.Be3 (31.a5!?=) 31...b5+= 32.ab5 ab5 33.cb5 cb5 34.Kd2 Ne7 35.Kc3?? (better is 35.Kd3–/+) 35...Nd5–+ 36.Kb3 (36.Kd2–+) 36...Ne3 (36...Ne3 37.d5 Nd5–+) 0–1. Fournier,Frederic – Mephisto Mondial, France, 1994. (=1.a4 e5 2.c3 d5 3.b4 Be7)

3.c3 f5

4.Bb2 e4 5.Na3 A) 5...Nf6 6.Nh3 (6.e3 a5 7.b5 Nbd7 8.Ne2 Nc5 9.Nf4 Bd6 10.Be2 g5 11.d4; 6.Qb3 Be7 7.Nh3 0–0 8.g3 a5 9.Bg2 Na6 10.Nc2 ab4 11.cb4; 6.Nb5 Nc6 7.Qb3 a5 8.Rc1 Be7 9.Nh3 0–0 10.e3 Ra6 11.Nf4; 6.g3 a5 7.Qb3 Na6 8.Nc2 Qd6 9.Nh3 ab4 10.Bg2 bc3 11.Qc3) 6...a5 7.Nf4 Bd6 8.g3 0–0 9.Nb5 Bf4 10.gf4 Nc6 11.Qb3; B) 5...Nc6 6.Nh3 (6.e3 Nf6 7.Nh3 Be7 8.b5 Ne5 9.c4 Ng6 10.Be2 0–0 11.0–0; 6.g3 Nf6 7.Bg2 Be7 8.Nh3 0–0 9.0–0 a5 10.b5 Ne5 11.d4; 6.d4 Nf6 7.Nh3 Nb4 8.e3 Nc6 9.Be2 Be7 10.0–0 0–0 11.c4; 6.Qb3 Nf6 7.Nh3 Be7 8.g3 0–0 9.Bg2 Nh5 10.0–0 Be6 11.Nc2; 6.b5 Na5 7.Nh3 Nf6 8.e3 Bd6 9.Be2 0–0 10.0–0 Be5 11.g3) 6...Nf6 7.e3 a6 8.Be2 Bd6 9.0–0 0–0 10.Qb3 Qe7 11.Nc2; C) 5...a5 6.b5 (6.Nh3 Nf6 7.Nf4 Bd6 8.g3 Na6 9.ba5 Nc5 10.Nb5 Bf4 11.gf4; 6.ba5 Be7 7.Nh3 Nf6 8.g3 0–0 9.Bg2 Nc6 10.0–0 Na5 11.Qc2; 6.Qb3 Nf6 7.Nh3 Be7 8.Nf4 0–0 9.Nc2 Qd6 10.e3 g5 11.Ne2; 6.e3 Nf6 7.b5 Nbd7 8.Nh3 Nc5 9.Be2 Be7 10.0–0 0–0 11.c4) 6...Nf6 7.Nh3 Bc5 8.e3 0–0 9.Nf4 g5 10.Nh3 h6 11.c4; D) 5...Kf7 6.Nh3 (6.e3 Nc6 7.Nh3 Nf6 8.Be2 a5 9.ba5 Na5 10.0–0 Bc5 11.Qc2; 6.h4 Nc6 7.Nh3 Qh4 8.Nb5 Qd8 9.c4 Nb4 10.cd5 Nd5 11.e3; 6.Nc2 Nc6 7.Nh3 Nf6 8.e3 Bd6 9.b5 Ne5 10.Nd4 h6 11.Nf4; 6.Qb3 Nc6 7.Nh3 Nf6 8.Nc2 Bd6 9.e3 h6 10.c4 Be5 11.Be5) 6...Nc6 7.b5 Na5 8.e3 Nf6 9.Be2 Bc5 10.0–0 Re8 11.Nf4; E) 5...Be7 6.Nh3 (6.g3 Nf6 7.Nh3 0–0 8.Bg2 a5 9.b5 Qd6 10.0–0 Nbd7 11.Nc2; 6.e3 Nf6 7.Ne2 0–0 8.Nf4 Nc6 9.b5 Na5 10.c4 c6 11.Qc2) 6...Nf6 7.g3 0–0 8.Bg2 a5 9.b5 Nbd7 10.0–0 Nc5 11.c4.

4.Bb2 e4 5.e3 A) 5...Be7 6.c4 (6.Na3 Nf6 7.Ne2 0–0 8.Nf4 a5 9.b5 g5 10.Nh5 Nbd7 11.c4; 6.Nh3 Nf6 7.Nf4 0–0 8.Na3 Nc6 9.b5 Na5 10.c4 c6 11.Qc2; 6.Ne2 Nf6 7.Nf4 Nc6 8.Na3 0–0 9.b5 Na5 10.c4 c6 11.Qc2) 6...Nf6 7.cd5 0–0 8.Bc4 Bb4 9.Ne2 Nbd7 10.Nf4 Nb6 11.Bb3; B) 5...a5 6.b5 (6.ba5 Nf6 7.c4 Bb4 8.cd5 Qd5 9.Nh3 0–0 10.Na3 Qa5 11.Bc4; 6.Nh3 Nf6 7.b5 Bc5 8.d4 ed3 9.Bd3 0–0 10.Nd2 Nbd7 11.Nf3; 6.Ne2 Nc6 7.b5 Ne5 8.Nf4 Nf6 9.Na3 Ng6 10.Nh5 Nh5 11.Qh5) 6...Nf6 7.c4 Nbd7 8.Nh3 Nb6 9.cd5 Nfd5 10.Bd4 Qh4 11.Nc3; C) 5...Nc6 6.Na3 (6.Nh3 Nf6 7.Na3 Be7 8.b5 Na5 9.c4 0–0 10.Nf4 c6 11.Qc2; 6.b5 Na5 7.Na3 Nf6 8.Nh3 Bd6 9.Be2 0–0 10.0–0 Be5 11.f4; 6.Ne2 Nf6 7.Na3 a6 8.Nc2 Bd6 9.Ncd4 0–0 10.Nc6 bc6 11.Nd4) 6...Nf6 7.Nh3 Be7 8.b5 Na5 9.Nf4 Bd6 10.Be2 0–0 11.c4; D) 5...Nf6 6.Nh3 (6.Na3 a5 7.b5 Bd6 8.Ne2 Nbd7 9.Nf4 Nc5 10.Be2 g5 11.d4; 6.Ne2 Nc6 7.Na3 Be7 8.b5 Na5 9.Nd4 c5 10.bc6 bc6 11.c4; 6.Bb5 c6 7.Be2 Bd6 8.Nh3 0–0 9.Nf4 Qc7 10.g3 g5 11.Nh5; 6.Be2 a5 7.b5 Bc5 8.Nh3 0–0 9.Nf4 g5 10.Nh3 h6 11.Na3) 6...Nc6 7.Na3 Be7 8.b5 Ne5 9.Nf4 Ng6 10.Ng6 hg6 11.Nc2.

4.Bb2 e4 5.g3 A) 5...Be7 6.Bg2 (6.Nh3 Nf6 7.Bg2 0–0 8.0–0 a5 9.Nf4 g5 10.Nh3 h6 11.ba5; 6.Na3 Nf6 7.Nh3 0–0 8.Bg2 a5 9.b5 Nbd7 10.0–0 Nc5 11.c4; 6.Qb3 Nf6 7.Na3 0–0 8.Nh3 a5 9.Nc2 Qd6 10.Nf4 Na6 11.Bg2) 6...Nf6 7.Nh3 0–0 8.0–0 a5 9.Nf4 Na6 10.ba5 Nc5 11.Na3; B) 5...a5 6.Nh3 (6.b5 Nf6 7.Nh3 Nbd7 8.Bg2 Bd6 9.0–0 0–0 10.Na3 Nb6 11.d3; 6.Bg2 Nf6 7.b5 Bc5 8.Nh3 Nbd7 9.Nf4 Bd6 10.d4 Nf8 11.e3; 6.Qb3 Nc6 7.b5 Ne5 8.Na3 Nf6 9.Nh3 Bc5 10.Bg2 0–0 11.0–0; 6.Na3 ab4 7.cb4 Nf6 8.Qb3 Nc6 9.Nc2 Qd6 10.Nh3 Nb4 11.Bg2) 6...Nf6 7.b5 Nbd7 8.Bg2 Bd6 9.0–0 0–0 10.Na3 Nb6 11.d3; C) 5...Nc6 6.Nh3 (6.Bg2 Nf6 7.Nh3 a5 8.b5 Ne5 9.Na3 Bd6 10.0–0 0–0 11.d4; 6.Na3 Nf6 7.Bg2 Be7 8.Nh3 0–0 9.0–0 Nh5 10.e3 g6 11.Nf4) 6...Bd6 7.Na3 Nf6 8.Bg2 a6 9.0–0 0–0 10.Qb3 Qe8 11.c4; D) 5...Bd6 6.Bg2 (6.Nh3 Nf6 7.Na3 0–0 8.Bg2 a5 9.b5 Nbd7 10.0–0 Nb6 11.d3; 6.Na3 Nf6 7.Nh3 0–0 8.Bg2 a5 9.b5 Nbd7 10.0–0 Nb6 11.d3) 6...Nf6 7.Na3 0–0 8.Nh3 a5 9.b5 Nbd7 10.0–0 Nb6 11.d3; E) 5...Nf6 6.Bg2 (6.Nh3 c5 7.Na3 Nc6 8.Nf4 g5 9.b5 gf4 10.bc6 bc6 11.c4; 6.Na3 a5 7.b5 Bc5 8.Nh3 0–0 9.Bg2 Nbd7 10.0–0 Ne5 11.Nf4; 6.Qb3 a5 7.Na3 Be7 8.Nh3 0–0 9.Nc2 Na6 10.Nf4 g5 11.Nh3) 6...a5 7.b5 Nbd7 8.Nh3 Bd6 9.0–0 0–0 10.Na3 Nb6 11.d3.

4.Bb2 e4 5.Nh3 A) 5...a5 6.b5 (6.g3 Nf6 7.b5 Be7 8.c4 d4 9.Bg2 Qd6 10.0–0 Nbd7 11.d3; 6.Na3 Nf6 7.Nf4 Bd6 8.g3 0–0 9.Nb5 Bf4 10.gf4 Nc6 11.Qb3; 6.Nf4 Nf6 7.Na3 Bd6 8.g3 0–0 9.Nb5 Bf4 10.gf4 Nc6 11.Qb3; 6.e3 Nf6 7.b5 Bc5 8.Nf4 0–0 9.Ba3 Ba3 10.Na3 Qd6 11.c4) 6...Nf6 7.g3 Nbd7 8.Bg2 Bd6 9.0–0 0–0 10.Na3 Nb6 11.d3; B) 5...Nc6 6.g3 (6.Na3 Nf6 7.e3 Be7 8.b5 Na5 9.Be2 0–0 10.0–0 Bd6 11.c4; 6.e3 Nf6 7.Na3 Bd6 8.Nb5 Be7 9.Be2 0–0 10.0–0 a6 11.Nd4; 6.Qb3 Nf6 7.Na3 a5 8.Nc2 Be7 9.b5 Ne5 10.Nd4 Nc4 11.e3) 6...Bd6 7.Bg2 Nf6 8.0–0 a6 9.d4 0–0 10.e3 Ng4 11.Nd2; C) 5...Be7 6.c4 (6.Nf4 Nf6 7.c4 d4 8.e3 0–0 9.c5 Kh8 10.Bd4 Nc6 11.Bc3; 6.Na3 Nf6 7.g3 Nc6 8.Bg2 0–0 9.0–0 a5 10.b5 Ne5 11.d4; 6.g3 Nf6 7.Bg2 a5 8.0–0 0–0 9.Nf4 g5 10.Nh3 h6 11.ba5) 6...Nf6 7.cd5 Nd5 8.Bg7 Rg8 9.Bb2 Na6 10.b5 Nc5 11.Nc3; D) 5...Nf6 6.g3 (6.Na3 Nc6 7.e3 Be7 8.b5 Ne5 9.Nf4 Kf7 10.c4 Ng6 11.Nd5; 6.Nf4 Nc6 7.Na3 Be7 8.b5 Na5 9.e3 0–0 10.c4 c5 11.cd5; 6.e3 Nc6 7.Na3 Be7 8.b5 Na5 9.Nf4 0–0 10.c4 c6 11.Qc2) 6...c5 7.Bg2 Nc6 8.0–0 cb4 9.cb4 Bb4 10.Bf6 Qf6 11.Nc3.

4.h4 Nf6 5.d4 Bd6 6.de5 Be5 7.Nf3 Bd6 8.h5 0–0 9.Bg5 Nc6 10.h6 g6 11.a5 Ne5 12.a6 ba6 13.e3 Bb7 14.Ba6 Ba6 15.Ra6 Qc8 (15...Neg4!?+=) 16.Ne5 Be5 17.Bf6 Bf6 18.Qd5 Kh8 19.b5 Rd8 20.Qf7 Rf8 21.Qc4 (21.Rf6 Rf7 22.Rf7 Qe8 23.Rc7 Qb5–/+) 21...Qd7 22.0–0 Rad8 23.Ra7 Qd5? (23...Rc8+–) 24.Qc7 Qd7 (24...Qg8+–) 25.Qd7 Rd7 26.Rd7 Rd8 27.Rfd1 Rd7 28.Rd7 Kg8 29.b6 (29.b6 g5 30.b7+–) 1–0. Trkn – notactics2 (1750), ICC, 2004.

4.h4 Nf6 5.d4 Nbd7 6.de5 Ne5 7.Bf4 Bd6 8.e3 c6 9.Nf3 Nf3 10.Qf3 0–0 11.Bd3 Ne4 12.h5 Bf4 13.Qf4 Qf6 14.Be4 fe4 15.Qf6 Rf6 16.c4 Be6 17.Nc3 Rd8 18.Rd1 Rf5 19.Ne4 Rdf8 20.Nc5 Bc8 21.cd5 cd5 22.Nd3 b6 23.h6 g5 24.g4 R5f6 25.Rh5 Rg6 26.Ne5 Rd6 27.Rg5 Kh8 28.f4 1–0. guest1149 – steve_wpb (2030), ICC, 2003.

4.h4 Nf6 5.d4 e4 6.Na3 c6 7.h5 Bd6 8.h6 g6 9.Nh3 Be6 10.Bg5 Nbd7 11.e3 0–0 12.Be2 a5 13.b5 c5 14.Nc2 Rc8 15.0–0 Kh8 16.dc5 Nc5 17.Nf4 Bg8 18.Nd4 Qe7 19.Ra2 Qe5 20.Bh4 Ne6?? (better is 20...Ncd7=) 21.Nde6+– Be6 22.Bg3 Qc3 23.Ne6 Bg3 24.Nf8 (24.fg3 Qe3 25.Kh2 Qh6 26.Kg1 Qe3 27.Kh2 Rfe8–/+) 24...Bd6 25.Nd7! Nd7 26.Qd5 Qe5 27.Qe5 Ne5 28.Rd1 Bb4? (better is 28...Bf8 29.Rd5 Rc1 30.Kh2 b6+–) 29.Rc2! Rb8 (29...Rc2 30.Rd8 Mate attack) 30.Rd5 Nf7 31.Rd7 Nh6 (31...Ng5 32.Rb7! Re8+–) 32.Rcc7 Bf8 (32...Kg8 33.Bc4 Kf8 34.Rh7 Bc3 35.Rh6 Rc8 36.Rc8 Kg7+–) 33.Rh7 Kg8 34.Bc4 (34.Bc4 Nf7 35.Rcf7 Bd6 36.Rb7 Kf8 37.Rh8) 1–0. b4_player – johanna, internet, 2013. (=1.c3 d5 2.b4 e5 3.a4 f5)

4.h4 Nf6 5.d4 e4 6.Qb3 Be6 7.Nh3 Nbd7 8.h5 h6 (8...Nh5? 9.Ng5 Bg8 10.Rh5+–) 9.Nf4 Bf7 10.Ng6 Bg6 11.hg6 Bd6 12.a5 f4 13.a6 b6 14.e3 0–0 (better is 14...fe3!? 15.Be3 Qe7=) 15.ef4+/– Ng4? (better is 15...Qe7+/–) 16.Qd5+– Kh8 17.Bb5 (17.Be2 Ngf6 18.Qg5 Qe7+–) 17...e3?! (17...Qe7 18.Be2 Ndf6+–) 18.fe3 Ndf6 (18...Qe7 19.Qf3 c6 20.Bc6 Rf4 21.Qe2+– (worse is 21.Ba8 Rf3 22.Bf3 Ne3+–)) 19.Qe6 (19.Qf3!? c5 20.bc5 bc5+–) 19...Qc8 20.Qc8 Rac8 21.Bc6 Rcd8 (21...Rfe8 22.Na3 Bf4 23.Nb5 Be3 24.Be3 Re3 25.Kd2 Ne4 26.Be4 Re4 27.Na7+–) 22.Na3 Be7 (22...Rde8 23.Be8 Re8+–) 23.Nb5 Nd5 24.Na7 Nde3 (24...Nge3 25.Be3 Ne3 26.Kd2+–) 25.Ke2 Nd5 26.Kf3 Ngf6 27.Nb5 Bd6 (27...Bb4 28.cb4 Nb4 29.Bb7+–) 28.a7 Ra8 29.g4 Nf4 (29...Kg8+–) 30.Bf4 Ng8 31.Ba8 Bf4 32.Bc6 Ne7 33.a8Q Ng6 34.Qf8! Nf8 35.Kf4 Ne6 36.Kf5 Ng5 (36...Nf4 37.Kf4 Kh7 38.Ra7 Kg8 39.Bd5 Kh8 40.Ra8 Kh7 41.Bg8 Kh8 42.Bf7 Kh7 43.g5 g6 44.Rg8 h5 45.Rg6 h4 46.Rh4) 37.Kg6 (37.Kg6 Ne6 38.Ra8 Nd8 39.Rd8) 1–0. marekt – aironino, Yahoo, 2005.

4.Bb2 Nf6

5.Na3 A) 5...e4 6.Nh3 (6.g3 a5 7.b5 Bc5 8.Nh3 Nbd7 9.Bg2 0–0 10.0–0 Ne5 11.Nf4; 6.Nb5 Nc6 7.Qb3 a5 8.Rc1 f4 9.g3 Be7 10.gf4 0–0 11.e3; 6.Qb3 Be7 7.Nh3 0–0 8.g3 a5 9.Bg2 Na6 10.Nc2 Qd6 11.Rb1; 6.e3 Be7 7.Nh3 0–0 8.Be2 Nc6 9.0–0 a6 10.b5 ab5 11.Nb5) 6...Nc6 7.Nf4 g5 8.Nh3 Rg8 9.g3 a5 10.b5 Ne5 11.Qb3; B) 5...a5 6.b5 (6.Qb3 e4 7.Nh3 Be7 8.Nf4 0–0 9.Nc2 Qd6 10.e3 g5 11.Nh3; 6.Nf3 e4 7.Nd4 ab4 8.cb4 Bb4 9.Qb3 Be7 10.e3 0–0 11.Be2) 6...Nbd7 7.Nf3 Bc5 8.c4 e4 9.Nd4 Nb6 10.e3 0–0 11.Qb3; C) 5...Bd6 6.Nb5 (6.g3 Nc6 7.Bg2 0–0 8.Nh3 a6 9.Qb3 Kh8 10.Ng5 e4 11.Nh3; 6.Nf3 0–0 7.Nb5 e4 8.Nd6 Qd6 9.Nd4 f4 10.f3 Na6 11.e3) 6...0–0 7.Nf3 e4 8.Nd6 Qd6 9.Nd4 f4 10.f3 Nc6 11.b5; D) 5...Nc6 6.g3 (6.Nh3 Bd6 7.g3 a6 8.Bg2 h6 9.b5 Na5 10.d4 ab5 11.ab5; 6.e3 Bd6 7.b5 Na5 8.Nf3 0–0 9.Be2 c5 10.bc6 bc6 11.Qc2; 6.b5 Na5 7.Nf3 Bd6 8.g3 0–0 9.Bg2 c5 10.0–0 e4 11.Ng5; 6.Qc2 e4 7.e3 Be7 8.b5 Ne5 9.c4 Ned7 10.Nh3 Nc5 11.Nf4) 6...Bd6 7.Bg2 0–0 8.Nh3 a5 9.b5 Ne7 10.c4 Ne4 11.0–0.

5.Qb3 A) 5...Nc6 6.Na3 (6.Nf3 e4 7.Nd4 Bd6 8.g3 0–0 9.Bg2 Qe8 10.Nb5 Be5 11.0–0; 6.g3 Kf7 7.Bg2 e4 8.Nh3 a5 9.b5 Ne5 10.Na3 Bc5 11.0–0; 6.e3 Bd6 7.Be2 0–0 8.Na3 f4 9.Nf3 e4 10.Nd4 Nd4 11.cd4) 6...Bd6 7.g3 0–0 8.Bg2 Qe7 9.Nb5 Be6 10.Nd6 Qd6 11.Nf3; B) 5...e4 6.Na3 (6.Nh3 Nc6 7.Na3 Be7 8.g3 0–0 9.Bg2 Nh5 10.0–0 Be6 11.Nc2; 6.e3 Bd6 7.Na3 0–0 8.Nh3 Nc6 9.Be2 a6 10.0–0 Be6 11.Ng5; 6.g3 a5 7.Na3 Nc6 8.Nc2 Be7 9.Nh3 0–0 10.Bg2 ab4 11.cb4) 6...Be7 7.e3 0–0 8.Ne2 Nc6 9.Nb5 a5 10.Nbd4 ab4 11.Nc6; C) 5...a5 6.Na3 (6.Nf3 e4 7.Nd4 ab4 8.cb4 Na6 9.Ba3 Kf7 10.Nc3 Nb4 11.Bb4; 6.e3 Bd6 7.Nf3 0–0 8.Na3 ab4 9.cb4 Nc6 10.Nc2 Qe7 11.Bb5) 6...e4 7.Nh3 Be7 8.Nf4 0–0 9.g3 Na6 10.Nc2 Qd6 11.Bg2; D) 5...Be7 6.Nf3 (6.c4 Nc6 7.Nf3 e4 8.Ne5 Nb4 9.Nc3 0–0 10.cd5 Nbd5 11.e3; 6.Na3 Nc6 7.Nf3 0–0 8.g3 f4 9.gf4 ef4 10.Rg1 Re8 11.Nb5; 6.g3 Nc6 7.Na3 0–0 8.Nf3 Ne4 9.Bg2 Be6 10.d3 Nd6 11.0–0; 6.d4 e4 7.Nd2 f4 8.c4 dc4 9.Nc4 Nc6 10.0–0–0 Nd5 11.Nh3; 6.e3 Nc6 7.Nf3 0–0 8.Na3 e4 9.Nd4 a5 10.Nc6 bc6 11.Nc2) 6...Nc6 7.c4 e4 8.Ne5 Be6 9.Nc6 bc6 10.e3 Rb8 11.b5.

5.e3 A) 5...Bd6 6.Nf3 (6.Na3 Nc6 7.Be2 0–0 8.Qb3 f4 9.Nf3 e4 10.Nd4 Nd4 11.cd4; 6.Be2 0–0 7.Na3 a5 8.b5 e4 9.Nh3 Nbd7 10.0–0 Nc5 11.c4) 6...0–0 7.Na3 Nc6 8.b5 Na5 9.c4 e4 10.Nd4 f4 11.Be2; B) 5...Nc6 6.b5 (6.Na3 Bd6 7.Nf3 e4 8.Nd4 Nd4 9.ed4 0–0 10.Be2 Ng4 11.g3; 6.Be2 Bd6 7.Na3 0–0 8.b5 Na5 9.Nf3 c5 10.bc6 bc6 11.c4; 6.h4 Bd6 7.h5 Ng4 8.f3 e4 9.fg4 Bg3 10.Ke2 f4 11.Nf3; 6.Nf3 e4 7.Nd4 Nd4 8.cd4 Bb4 9.Qb3 Qe7 10.Nc3 Be6 11.Be2; 6.Nh3 Bd6 7.Be2 0–0 8.Na3 f4 9.ef4 Bh3 10.gh3 e4 11.f5) 6...Na5 7.Nf3 Bd6 8.c4 e4 9.Nd4 0–0 10.cd5 Nd5 11.Nc3.

5.Nf3 A) 5...Bd6 6.c4 (6.Na3 0–0 7.Nb5 e4 8.Nd6 Qd6 9.Nd4 f4 10.Qb3 e3 11.fe3; 6.Qb3 e4 7.Nd4 Nc6 8.Na3 Nd4 9.cd4 c6 10.g3 Qb6 11.Nc2) 6...e4 7.Nd4 Bb4 8.Qb3 c5 9.Nc2 0–0 10.Bf6 Qf6 11.cd5; B) 5...e4 6.Nd4 Nc6 7.Nc6 bc6 8.Na3 Bd6 9.Nc2 0–0 10.g3 f4 11.Bg2.

5.g3 Bd6 (5...Nc6 6.Na3 (6.Bg2 Be7 7.Nh3 0–0 8.0–0 h6 9.Na3 Be6 10.d4 Bd6 11.c4; 6.Nh3 Bd6 7.Bg2 0–0 8.0–0 f4 9.Qb3 Bg4 10.Re1 Qe8 11.Ng5) 6...e4 7.Bg2 Be7 8.Nh3 0–0 9.0–0 a5 10.b5 Ne5 11.d4; 5...e4 6.Bg2 (6.Nh3 Nc6 7.Bg2 a5 8.b5 Ne5 9.0–0 Bd6 10.d4 Nc4 11.Bc1; 6.Na3 a5 7.Qb3 ab4 8.cb4 Nc6 9.Nc2 Be7 10.Nh3 0–0 11.Nf4) 6...a5 7.b5 Nbd7 8.Nh3 Bd6 9.0–0 0–0 10.Na3 Nb6 11.d3) 6.Bg2 (6.Na3 0–0 7.Bg2 a5 8.b5 Be6 9.Nf3 Nbd7 10.Ng5 Qe7 11.0–0; 6.Nf3 Nc6 7.b5 Na5 8.Na3 0–0 9.Bg2 c5 10.0–0 e4 11.Ng5; 6.b5 0–0 7.Bg2 e4 8.Nh3 Nbd7 9.0–0 Nc5 10.Na3 a6 11.Qc2; 6.Qb3 0–0 7.Na3 a5 8.Bg2 c6 9.Nf3 Na6 10.b5 Nc5 11.Qc2; 6.d4 ed4 7.b5 d3 8.Bg2 Qe7 9.Qd3 Nbd7 10.Nf3 Nc5 11.Qc2) 6...0–0 (6...Nc6 7.Na3 0–0 8.Nh3 a6 9.0–0 f4 10.Qb3 Kh8 11.Ng5) 7.Nf3 (7.Na3 Nc6 8.Nh3 a5 9.b5 Ne7 10.c4 Ne4 11.0–0) 7...e4 (7...Nc6 8.0–0 e4 9.Nd4 Nd4 10.cd4 Bb4 11.Qb3) 8.Nd4 c5 (8...Nc6 9.Nc6 bc6 10.0–0 f4 11.Na3) 9.Nb5 (9.bc5!? Bc5 10.Ba3 (10.Qb3 Qb6 11.Qb6) 10...Ba3 (10...Qd6 11.Bc5) 11.Na3+=) 9...cb4–/+ 10.Qb3 (10.Nd6 Qd6 11.cb4) 10...bc3 (10...Nc6 11.Nd6) 11.N1c3 (11.Qc3+=) 11...Be7 12.Rc1 a6?? (better is 12...Nc6–+) 13.Nc7+/– Ra7 14.N3d5 (14.N7d5?! Be6 15.Ne7 Qe7+=) 14...Nd5 15.Nd5 Be6 16.Ne7 Qe7 17.Qb6 (better is 17.Qe3!? b5 18.Ba3+/–) 17...Nc6= 18.0–0 Raa8 19.d3 Bd5 20.Rc5 Rfd8 21.Rfc1 Rac8 22.de4 Be4 23.Be4 fe4 24.e3 Rd3 (24...Rd2!? 25.Bc3 Rd3+=) 25.Re5+= Qf7 26.Re4 Rb3 27.Qd4!? Rf8 (27...Nd4 28.Rc8 Decoy) 28.Qd2 Rd3 29.Qe2 Qd7 30.Qh5 (30.Qg4!?+/–) 30...Rd2= 31.Ba3 g6 32.Qh6 (better is 32.Qc5!? Rff2 33.Qc4 Kg7 34.Qc3 Kf7 35.Qb3 Kf6 36.Rf4 Rf4 37.Bb2 (37.gf4?? Qg4 38.Kf1 Qg2 39.Ke1 Qe2) 37...Nd4 38.ef4–/+) 32...Rff2–/+ 33.Rh4 Rf7 34.Rf4 Rd1 35.Rd1 Qd1 36.Kg2 Qe2 37.Kh3 Qe3 38.Bb2 Qe6 39.Kh4 (39.Rg4–+) 39...Ne7 (better is 39...Qe2 40.Kh3 Qb2 41.Rf7 Kf7 42.Qh7 Qg7–+) 40.g4?? (better is 40.Rf7 Qf7 41.Qf4–/+) 40...Qe1–+ 41.Kg5 (41.Kh3 Qe3 42.Kg2 Qf4 43.Qf4 Rf4–+) 41...Qe3 (41...Nd5 42.Rf7 Qd2 43.Kh4 Qh6 44.Kg3 Kf7–+) 42.Bf6 (42.Kh4 Nd5 43.Bd4–+) 42...Nd5 (42...Rf6 43.Kh4 Rf4 44.Qf4 Qf4 45.Kh3 Qf3 46.Kh4 Qf2 47.Kh3 g5 48.a5 Qf3) 43.Kh4 (43.Qh7 Rh7 44.Be5 Qe5 45.Rf5 Qe7 46.Kg6 Qg7) 43...Qf4 (43...Nf4 44.Qf4 Qf4 45.Be7 Qf2 46.Kg5 Qe3 47.Kh4 Rf3 48.g5 Rf4) 44.Qf4–+ Nf4 (44...Nf6 45.g5 Nh5 46.Qc4+/–) 45.Be5 Nd3 46.Bc3 b5 47.Kg3 (47.ab5 ab5 48.Bd4 b4–+) 47...b4 (47...b4 48.Bd4 b3–+) 0–1. Stetsyk,Evgeny – Usoltseva,P (1810), 5th Geller Mem Open A, Odessa UKR, 2009.

3.c3 Bf5

4.Ba3 Nf6 5.Nf3 Bd6 6.b5 –/+.

4.Ba3 Qh4 5.Nf3 Qh6 (5...Qf6!?=+) 6.Ne5= Nd7 (6...Bd6 7.d4+=) 7.Nd7+= Bd7 8.d3 (better is 8.d4+=) 8...b5 (better is 8...0–0–0!?+=) 9.ab5+/– Bb5 10.g3 (10.Nd2 Bd7+/–) 10...Nf6 (10...a5 11.Bc1 Qb6 12.Bg2+/–) 11.Nd2 (11.Bg2 Bd7+/–) 11...a6 (11...Bd7 12.Bg2+/–) 12.Bg2 Bd6 (12...Be7 13.Nf3+/–) 13.Bc1 Ng4? 14.Bd5+– 0–0–0 15.Ne4 Qh5 16.c4 Bd7? 17.Ra6 Bb4 18.Kf1 c5 19.Nd6 Kc7 20.Bf4 Nf6 21.Nb5 Kc8 22.Ra8# 1–0. UPS – Fuffy, MySchachOpen, 2005.

4.a5 c5 5.e3 Bb1 (better is 5...cb4!? 6.d4 ed4 7.Bb5 Bd7 8.Bd7 Nd7 9.ed4 Ngf6–/+) 6.Rb1= cb4 7.cb4 Nc6 8.Bb5 Qd7 9.h3 Qf5 10.Qf3?? (better is 10.Bb2 a6 11.Ba4=) 10...Qb1–+ 11.Ne2 Nf6 (11...a6 12.Bc6 bc6 13.Qg3–+) 12.Bc6 (12.a6 0–0–0 (12...Qb4?! 13.ab7 Rb8 14.Bc6 Kd8 15.Bd5–/+; 12...Bb4?! 13.ab7 Rb8 14.Bc6 Ke7 15.0–0–+) 13.0–0 Qb4 14.Qf5 Kc7 15.Bc6 Kc6 16.Qe5 Bd6–+) 12...bc6 13.0–0 Bb4 14.Ba3 Qb3 15.Rc1 Qa3 16.Qg3 Bd2 17.Rc6 Nd7 18.Qg7 Rf8 19.Qg4 Nf6! 20.Rc8 Rc8 21.Qc8 Ke7 22.Qc7 Nd7 23.Ng3 Ba5 24.Nf5 Ke6 25.Ng7 Ke7 26.Nf5 Kf6 27.Qc2 e4 28.g4 Ne5 29.Nd4 Bc3 30.Ne2 Be1 31.Ng3 Nf3 32.Kg2 Nh4 33.Kh1 Qc3 34.Qa4 Bf2 35.Qa6 Ke5 36.Nf1 Be3 37.Qe2 Qd3 38.Qb2 Bd4 39.Qh2 Ke6 40.Qf4 Be5 41.Qh6 Bf6 42.Ng3 Qf3 43.Kg1 Qg2 0–1. maddoxdb – sober1, gameknot.com, 2012. (=1.c3 e5 2.b4 d5 3.a4 Bf5)

4.d4 Nd7 5.de5 Ne5 6.Nf3 Bd6 7.Qd5 Nf6 8.Qb5 c6 9.Qb7 0–0 10.Nd4 Bb1 11.Rb1 Nd5 12.Rb3 Rb8 13.Qa7 Nc3 14.e3 Bb4 15.Bd2 Nd5 16.Bb4 Rb4 17.Be2 Rb3 18.Nb3 Nc3 19.Qd4 Ne2 20.Qd8 Rd8 21.Ke2 Rb8 22.Rd1 Kf8 23.Nc5 Rb2 24.Rd2 Rb4 25.a5 Rb5 26.a6 Ra5 27.Rc2 Ke7 28.e4 Kd6 29.Nb7 1–0. guest1149 – guest767, ICC, 2003.

4.d4 e4 5.Bf4 Bd6 6.Bd6 Qd6 7.e3 Nf6 8.Nd2 Nbd7 9.a5 0–0 10.Ne2 Bg4 11.Qb3 h6 12.Nf4 c6 13.c4 g5 14.Ne2 Be2 15.Be2 Qe6 16.0–0 Ng4? (better is 16...b6+/–) 17.cd5+– cd5 18.Bg4 Qg4 19.Qd5 Rad8?! (19...Nf6 20.Qb7 Qe6+–) 20.Qb7 Nf6 21.Qa7 Nh5 (21...Qe2 22.Nb3+–) 22.Qa6 Kg7 23.h3 Qf5 (23...Qh4 24.b5+–) 24.g4 Qd7 25.gh5 f6 (25...Rfe8 26.f3 Qh3 27.Qe2+–) 26.Ne4 Qh3 27.Ng3 Rd5 28.Qb7 Rd7 29.Qe4 f5 30.Qe6 Rff7 (30...Rdf7 31.Rfc1 Rf6 32.Rc7 Kh8+–) 31.Rfc1 Rde7 32.Qg6 Kf8 33.Rc8 Re8 34.Qh6 Rg7 35.Qh8 1–0. orane (2180) – hilma, Live Game Caissa's Web, 2004.

4.d4 e4 5.Bf4 Nd7 6.Na3 (6.a5 Ne7=+) 6...a6 (6...c6 7.a5=+) 7.a5 (7.Qb3 Ngf6=+) 7...h6 (7...Ngf6 8.e3=+) 8.e3 h5 9.h3 g5 10.Bh2 g4 (10...Be6 11.b5=) 11.Qb3 c6 12.c4 Ngf6 13.hg4 Ng4 (< 13...hg4 14.Bc7 Qc7 15.Rh8+/–; < 13...Bg4 14.Ne2+=) 14.Bf4 Ndf6 15.c5 Bh6 (15...Nd7 16.Ne2=) 16.Bh6 (16.Ne2 Bg7+=) 16...Rh6 (16...Nh6 17.Ne2+=) 17.f3 (better is 17.Ne2+=) 17...Qc7? (17...ef3 18.gf3 Qb8 19.fg4 Qg3 20.Kd2 Qf2 21.Ne2 Ne4 22.Kc1 Bg4=) 18.fg4+– Qg3 19.Kd2 Qf2 20.Ne2 Bg4 21.Qd1 0–0–0 22.Qe1 Qf5 23.Nf4 Rg8 24.Nc2 Qg5 25.Qh4 Qf5 26.b5 cb5 27.Nb4 Qd7 28.Ke1 Kb8 29.Qf2 Ka7 30.Rh4 Rhh8 31.Nfd3 Qe6 32.Ne5 Rg5 33.Rc1 Rhg8 34.c6 Qe7 35.Qb2 Rc8 36.Qd2 Be6 37.Rf4 Ne8 38.Kd1 f6 39.cb7 Kb7 40.Rc8 Bc8 41.Nec6 Qc7 42.Qc2 Bd7 43.Ne7 Qc2 44.Kc2 Be6 45.Nec6 Kc7 46.Rf2 Bd7 47.Kd1 Kb7 48.Ne7 Be6 49.Rc2 Rg7 50.Nbd5 Bd5 51.Nd5 Rg5 52.Nb4 Nc7 53.Rf2 Ne8 54.Kd2 f5 55.Rf4 Ng7 56.Rh4 (56...Ne8 57.Kc3+–) 1–0. Trkn – guest7111, ICC, 2005.

3.h4? Bb4

4.c3 Be7 5.d3 Bh4 6.Rh4? (Better is 6.Nf3 Bf6 7.Nbd2–+) 6...Qh4 7.g3 (7.Nf3 Qe7–+) 7...Qe7 (7...Qh1 8.Nf3 Bh3 9.Nbd2 Bf1 10.Nf1–+) 8.g4 (8.Ba3 c5–+) 8...Bg4 9.f3 Be6 10.e3 Nf6 11.f4 ef4 12.ef4 0–0 13.Bh3 Bh3 14.Kd2 Bg4 15.Qb3 b6 16.c4 dc4 17.dc4 Rd8 18.Kc2 Bd1 19.Kb2 Bb3 20.Kb3 Na6 21.Ra2 Qb4 22.Kc2 Qc4 23.Kb2 Rd3 24.Ne2 Nb4 25.Ra3 Qc2 26.Ka1 Ra3 27.Na3 Qa2# 0–1. Bry – KEVINT, Live Game Caissa's Web, 2004.

4.c3 Be7 5.h5 h6 6.g4 (6.d4 e4–+) 6...Bg5 (6...Nf6!? 7.Qb3–+) 7.Nf3 Bg4 (7...Bf6!? 8.Rg1–+) 8.Ne5–/+ Be6 9.a5 d4 10.cd4 Qd4=+ 11.Nf3?? Qa1–+ 12.Ng5 hg5 13.Bh3 Bh3 14.Rh3 Qb1 15.Ba3 Qd1 16.Kd1 Nd7 17.Rg3 0–0–0 18.Rg5 f6 19.Rg7 Rh5 20.f4 Ra5 21.Bb2 Nh6 22.e4 f5 23.ef5 Nf5 24.Rf7 Rf8 25.Re7 Ne7 26.Bc3 Rh5 27.Bd4 Rf4 28.Ba7 Rf1 29.Kc2 b6 30.d3 Kb7 31.d4 Rh3 32.d5 Rf2 33.Kc1 Rh1# 0–1. Bry – cwm, Live Game Caissa's Web, 2004.

2.a4 e6

3.Ba3 e5 4.Nf3 e4 5.Nd4 =+.

3.Bb2 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.a4 e6).

3.b5 b6 4.Nf3 Bb7 5.a5 (5.Ba3 c5=) 5...d4 (5...ba5!? 6.Bb2 Nf6+=) 6.Bb2+= Bc5 (6...Bf3 7.ef3 c6 8.Bd3=) 7.c3 (7.e3 de3 8.Bg7 ef2 9.Ke2 Bf3 10.gf3 Bd4 11.Bh8 Bh8+/–) 7...e5? (better is 7...Bf3!? 8.gf3 Nf6=) 8.Ne5+/– Qf6? (better is 8...ba5!? 9.Qa4 dc3 10.Nc3 Nh6+/–) 9.cd4+– Bd6 10.a6 Bd5 11.Nc3 c5?? (11...Ne7+–) 12.Nd5 cd4 (12...Qe6 13.Nf4 Qe7+–) 13.Nf6 Nf6 14.e3 (14.e3 0–0 15.Ng4+–) 1–0. pierre – querque, internet, 2010.

3.c3 (--> 1.b4 e6 2.c3 d5 3.a4).

3.Ba3 Nf6

4.d4 Bd6 5.Nf3 0–0 6.b5 a6 7.e3 ab5 8.Bb5 c6 9.Bd6 Qd6 10.Bd3 Nbd7 11.c4 e5 12.c5 Qc7 (12...Qe7 13.Be2=+) 13.Be2= ed4 14.ed4 Re8 15.0–0 b6 16.cb6 Qb6 17.Re1 Ba6 18.Nc3 Be2 19.Re2 Re2 20.Qe2 h6 21.Qd3 Qa5 22.Nd2 Rb8 23.Qc2 Nf8 24.Nb3 (24.Ne2!?=) 24...Qb4=+ 25.Rb1 (25.Nd2 Qd4 26.Ra2 Qc5–/+) 25...Qc4–/+ 26.Rb2 Ne6 27.Na5 Rb2 28.Qb2 Qd4 (28...Qa6!? 29.Nb3 Qb6–/+) 29.Nc6=+ Qc4 30.Ne5 Qd4 31.Nf3 Qc4 32.Ne5 Qc7 33.Nb5 Qb8 34.Qe2 d4 35.Nf3 Qd8 36.Qd3 Nf4 (better is 36...Nd5!?=) 37.Qd2+/– Ne6 38.Nbd4 Nd4 39.Nd4 Ne4 40.Qb4 Qc7 41.g3 Qc1 42.Kg2 Nd2 43.Qb8 Kh7 44.Qb5 Qa1? (better is 44...Qc3 45.Qd5 Qd3 46.Qf5 Qf5 47.Nf5 Nc4+–) 45.Qd3 (45...g6 46.Qd2 Qa4 47.h3+–) 1–0. market (2100) – Lefevre (2165), GameColony.com, 2002.

4.Nf3 Bd6 5.d4 0–0 6.b5 a6 7.Bd6 Qd6 8.e3 Bd7 (8...ab5 9.Bb5 Bd7 10.Nbd2=+) 9.Nbd2= Ne4 (9...Qb6 10.ba6 Na6 11.Rb1=) 10.Ne4 de4 11.Nd2 Qb4 12.Rb1 (12.c4 e5=) 12...Qa4 13.ba6 Na6 14.c3 (14.Ne4 Bc6 15.Ra1 Qb4 16.c3 Qe7=) 14...Qd1 15.Kd1 Bc6 16.Bc4 (16.Bb5 Bb5 17.Rb5 b6=+) 16...b6 (16...Ra7 17.Rb2=+) 17.Ke2 Ra7 18.Rb3 Nb8 (18...Rfa8 19.Ra1=+) 19.Rhb1 (19.Bb5 Bb5 20.Rb5 f5=+) 19...Nd7–/+ 20.Bb5 Bb5 21.Rb5 f5 22.f3 ef3 23.gf3 Kf7 24.e4 Kf6 25.e5 Ke7 26.Rg1 g6 27.Nc4 Ra2 28.Rb2 Rfa8 29.Ke3 Rb2 30.Nb2 Ra2 31.Rg2 b5 Black fights for the Initiative 32.Kd3 c5 33.Rd2 g5 34.h3 Ra3 35.Rc2 h6 36.Rc1 c4 37.Kd2 Nb6 38.Rc2 b4 39.cb4 Rf3 40.Nc4 Rf2 41.Kd3 Rc2 (42.Kc2 Nc4–+) 0–1. marekt (2300) – MrPeabody (2585), ICC, 2003.

4.Nf3 Bd6 5.d4 0–0 6.b5 Nbd7 (6...Ne4 7.e3+=) 7.Bd6 cd6 8.e3 e5 (8...a6 9.Nbd2=) 9.a5 Re8 10.Be2 Nf8 11.0–0 Ng6 12.Re1 h5 (12...Bf5 13.a6 b6 14.Na3=) 13.Nbd2+= e4 14.Ng5 Ng4 15.Nh3 Qh4 16.Bf1 Nh6 (16...Nf6 17.g3 Qg4 18.f3+=) 17.g3 Qg4 18.f3 ef3 19.Nf2 (19.Qf3?! Qf3 20.Nf3 Bg4=) 19...Qg5 20.Nf3 Qf6 21.Bg2 Bf5 22.Nd2 Ng4 23.Ng4 Bg4 24.Qb1 Qg5 25.Qb3 h4 (better is 25...Ne7!?+=) 26.Qd5+– (26.Bd5?! Be6 27.Be6 Re6+=) 26...Qh6 (26...Qd5 27.Bd5 Rab8+–) 27.Qb7 hg3 28.hg3 Rab8 29.Qa7 Rbc8 (29...Rb5 30.Ne4 Rb2 31.Nd6+–) 30.c4 Re3 31.Nf1 Re1 32.Re1 Rc4 (32...Qg5+–) 33.Re8 Kh7 (33...Nf8 34.Bd5 Be6 35.Bc4 Bc4+–) 34.Qf7 Ne5 (34...Qg5 35.Qg8 Kh6 36.Qc4 Bd7+–) 35.Be4 (35.Be4 Bf5 36.Bf5 Qg6 37.Re5 Qf5 38.Rf5 Rc5 39.dc5 dc5 40.Rh5) 1–0. kamret (2195) – (1830), GameColony.com, 2003.

4.Nf3 Bd6 5.d4 0–0 6.b5 Ne4 7.Bd6 Qd6 8.e3 =+.

3.b5 c6

4.Ba3 c5 =+.

4.bc6 Nc6 5.e3 Nf6 6.Bb5 Bd7 7.Nf3 a6 8.Bd3 Bb4 9.c3 Bc5 10.0–0 e5 11.c4? e4–+ 12.cd5 Nd5?? 13.Be4+= Nf6 14.d4 Bb4 15.Bc6 Bc6 16.Ba3 Ba3 17.Na3 Ba4?? 18.Qa4+– b5 19.Qb3 0–0 20.Nc2 Ne4 +–. arifagam – heyuneverno (1845), net–chess.com, 2002.

4.e3 e5 5.Bb2 Bd6 6.Nf3 =+.

4.e3 f5 5.Ba3 Ba3 6.Na3 Nf6 7.Nf3 Nbd7 8.c4 (8.Nd4 Nb8=) 8...0–0 9.Rc1 Qe7 10.Nc2 Ne4 11.Ncd4 e5 (11...c5 12.Nc2=+) 12.bc6 ed4 13.cd7 Qd7 (13...de3!? 14.de3 Bd7 15.Qd5 Be6=) 14.Nd4+/– Kh8 (14...f4 15.f3 Nc5 16.cd5+/–) 15.cd5 Qd5 16.Bc4 Qa5 17.f3 Nd6 18.Bb3 Bd7 19.0–0 Rac8 20.Ne6 (20.f4!?+/–) 20...Be6 21.Be6 Rc1 22.Qc1 Qa4 23.Qc5 Qa6 24.Rc1 h6 (24...Qd3 25.Bf5 (< 25.Qa7 Qd2 26.Ra1 Re8–/+) 25...Qd2 26.e4=) 25.d4 (25.Bc4 Qc6 26.Qc6 bc6+/–) 25...Rf6 26.d5 b5 27.Qc7 Nc4? (better is 27...Rf8+=) 28.Qd8 Kh7 29.Qg8 Kg6 30.h4 Qb7?? (better is 30...h5 31.Qe8 Kh6+/–) 31.Qe8 Kh7 (31...Qf7 32.h5! Kg5 33.Bf7 Nd6+–) 32.h5 (32.Bg8 Kh8 33.Bf7 Kh7 34.Qg8) 32...Re6+– 33.Qe6 f4 34.e4 Qc7? (34...Qb8+–) 35.Qg6 Kg8 36.Qe8 Kh7 37.Qb5 Qb6 38.Qb6 Nb6 (38...ab6?? 39.Rc4 g5 40.Rc6+–) 39.d6 (39...Nd7 40.Rc7+–) 1–0. Hartlaub,Marianne – Ludwig,Ines (1690), 5 sen. BayEM Schney, 1993.

3.b5 Nf6

4.Nf3 c5 5.Bb2 Be7 6.a5 (6.e3 Nbd7=) 6...0–0 (6...Nbd7 7.e3=+) 7.Ne5 (7.e3 a6=+) 7...Nbd7 8.e3 Ne5 9.Be5 Bd7 (9...Ne4 10.Nc3 f6 11.Bg3 Nc3 12.dc3=+) 10.a6 ba6 11.Ra6 Qe8 12.Nc3 d4 (better is 12...c4!?=) 13.ed4+/– cd4 14.Bd4 Nd5 15.Nd5 (15.Qb1!?+=) 15...ed5= 16.Qe2 (16.Ba7? Bc5 17.Be2 Ra7 (17...Ba7?! 18.b6=) 18.Ra7 Ba7–+) 16...Bb5?? (better is 16...Bf6 17.Rf6 gf6=) 17.Qb5+– Bc5 (17...Bf6 18.Be3 d4 19.Rf6 gf6 20.Qh5+–) 18.Be3 Be3 19.fe3 Qb5 20.Bb5 Rfb8 (20...Rab8 21.Ra5 Rfc8+–) 21.Bc6 Rb1 22.Ke2 Rh1 23.Ba8 Rh2 (23...d4 24.ed4 Kf8 25.Ra7 Rh2 26.Bd5+–) 24.Bd5 g6 (24...Kf8 25.Ra7 f5 26.c4+–) 25.Ra7 (25...Kf8 26.c4+–) 1–0. Trkn – guest316, ICC, 2004.

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

2.a4 Bf5

3.e3 e5 4.Bb2 Nd7 5.b5 f6 6.c4 Nc5 7.d4 ed4 8.Bd4 Ne6 9.Bc3 dc4 10.Qf3 Bd3 11.Be2 Nc5 (cont. unkn., 35 moves) 0–1. Schoeman – Coveyou, 1985.

3.e3 e6 4.Bb2 Nf6 (4...Bb4?? 5.Bg7 Nf6 6.Bh8+–) 5.b5 Bc5 6.Nf3 Nbd7 7.d4 Bb4 8.Bc3 Bd6 9.Nbd2 c6 10.bc6 bc6 11.Rb1 0–0 12.Be2 Nb6 13.Ba5 Bc7 14.Bb4 Bd6 15.Bd6= Qd6 16.a5 Na4 17.Rb3 Rab8 18.Nh4 Rb3 19.Nf5 ef5 20.cb3 Nc3 21.Qc1 Qb4 22.Bd3 Na2 23.Qc6 Qb3?? 24.Nb3+– 1–0. kamera – wtfo, GameColony.com, 2002.

3.Nf3 Nc6 4.b5 Nb4 5.d3 c5? (better is 5...d4=) 6.c3+– c4 (6...a5 7.cb4 ab4 8.e3+–) 7.cb4 e6 8.Qd2 Qf6 9.Bb2 Qe7 10.dc4 0–0–0 (10...dc4 11.Qc3 Rc8+–) 11.b6 a6 12.c5 Bb1 (12...Nf6 13.Qd4+–) 13.Rb1 Nf6 14.b5 Ne4 (14...ab5 15.Qa5 Kd7 16.Qb5 Kc8 17.Qa5+–) 15.Qa5 Nc5 16.Ba3 Nd3 17.ed3 Qa3 18.ba6 Bc5 (18...Bd6+–) 19.ab7 Kb7 20.Qa7 Kc6 (20...Kc8 21.Qc7) 21.Qc7 1–0. orane (2040) – KNIGHT12, Live Game Caissa's Web, 2004.

3.Nf3 Nf6 4.e3 e6 5.Ba3 a5 6.b5 Bd6 7.Be2 (not finished). marekt – monet, ChessWorld.net, 2003.

3.Nf3 e6

4.Ba3 Nf6 5.e3 Bd6 6.Be2 0–0 7.0–0 Nbd7 8.b5 h6 9.Bd6 (9...cd6 10.a5=) =. guest488 – guest247, ICC, 2003.

4.c3 Nf6

5.Nd4 Bg6

6.Na3 a5 7.ba5 A) 7...Ra5 8.g3 (8.Qb3 Qc8 9.c4 Nbd7 10.d3 Bc5 11.Nf3 0–0 12.Bd2; 8.d3 Nbd7 9.g3 e5 10.Nf3 Qa8 11.Bh3 Bd6 12.Bb2; 8.e3 Nbd7 9.Be2 Be7 10.0–0 0–0 11.f4 Ne4 12.Bb2; 8.Nf3 Nbd7 9.d3 c6 10.Bf4 Nc5 11.Nc2 Bd6 12.g3) 8...Nbd7 9.Bh3 c6 10.Nac2 Nc5 11.Ne3 h5 12.d3; B) 7...c5 8.Nf3 (8.Nb3 c4 9.Nd4 Bc5 10.Nab5 e5 11.Nf3 Ne4 12.e3; 8.Ndb5 Nc6 9.g3 Qa5 10.Bg2 Be7 11.Nc2 0–0 12.0–0) 8...Nc6 9.d3 Be7 10.Nb5 0–0 11.g3 Qa5 12.Bg2; C) 7...Na6 8.d3 (8.g3 Nc5 9.Bg2 Be7 10.Nb3 0–0 11.Nb5 Nb3 12.Qb3; 8.e3 Nc5 9.c4 Ra5 10.cd5 ed5 11.Be2 Be7 12.0–0; 8.Nb3 Ne4 9.g3 Nac5 10.Bg2 Be7 11.0–0 0–0 12.Nc5; 8.Nac2 Nc5 9.Ba3 Ra5 10.e3 Ra8 11.h4 h5 12.Rb1) 8...c6 9.Bd2 Qa5 10.Nac2 Nc5 11.Ne3 Qd8 12.g3; D) 7...Nc6 8.a6 (8.d3 Na5 9.Bf4 c6 10.g3 Bc5 11.Nb3 e5 12.Nc5; 8.g3 Be7 9.Bg2 0–0 10.0–0 Ra5 11.Qb3 Qd7 12.Nac2; 8.Nc6 bc6 9.d3 Bd6 10.Nc2 0–0 11.Nd4 Qd7 12.Nb3; 8.e3 Na5 9.Be2 c6 10.0–0 Bd6 11.f4 0–0 12.d3) 8...Ra6 9.e3 Ra8 10.Be2 Be7 11.Nc6 bc6 12.Nc2; E) 7...Nbd7 8.g3 (8.e3 Nc5 9.c4 Ra5 10.cd5 ed5 11.Be2 Be7 12.0–0; 8.Nb3 Be7 9.d3 0–0 10.g3 Nc5 11.Bg2 Na4 12.Nb5; 8.d3 Ra5 9.g3 e5 10.Nf3 c6 11.Bg2 Bd6 12.0–0; 8.h4 Ra5 9.d3 c6 10.g4 Ng4 11.h5 Bf5 12.f3) 8...Ra5 9.Bh3 c6 10.0–0 h5 11.Nf3 Ne4 12.d3.

6.Na3 a5 7.Qb3 A) 7...Na6 8.e3 (8.ba5 Nc5 9.Qb2 Ra5 10.d3 Ra4 11.g3 c6 12.Bh3; 8.Nac2 ab4 9.cb4 e5 10.Nf3 Bc2 11.Qc2 e4 12.Nd4; 8.Ndc2 ab4 9.cb4 c5 10.bc5 Nc5 11.Qb5 Qd7 12.a5; 8.Bb2 ab4 9.cb4 Nb4 10.Nab5 c5 11.Bc3 Be7 12.d3) 8...ab4 9.Ba6 ba6 10.cb4 c5 11.bc5 Bc5 12.Nac2; B) 7...Nbd7 8.e3 (8.Bb2 c6 9.b5 Nc5 10.Qa2 Qc7 11.c4 Be7 12.cd5; 8.g3 ab4 9.cb4 c5 10.bc5 Bc5 11.Nab5 e5 12.Nf3; 8.h4 Be7 9.d3 0–0 10.Nf3 c6 11.Nc2 e5 12.b5; 8.h3 Be7 9.Nac2 0–0 10.Ba3 ab4 11.cb4 c5 12.bc5) 8...c6 9.Be2 e5 10.Nf3 Qb6 11.b5 Bd6 12.Qb2; C) 7...Nc6 8.Nc6 (8.Nac2 Bc2 9.Nc2 ab4 10.cb4 Bd6 11.e3 0–0 12.Be2; 8.b5 Nd4 9.cd4 Ne4 10.Nc2 Qf6 11.Qf3 Nf2 12.Kf2; 8.e3 Nd4 9.ed4 ab4 10.cb4 c6 11.d3 Bh5 12.f3) 8...bc6 9.d3 Bd6 10.b5 cb5 11.Qb5 Nd7 12.h4; D) 7...ab4 8.cb4 Na6 9.Nac2 e5 10.Nf3 Bc2 11.Qc2 e4 12.Nd4.

6.Na3 a5 7.b5 A) 7...Bd6 8.g3 (8.Nac2 0–0 9.g3 c5 10.bc6 bc6 11.Ne3 Qd7 12.Bg2; 8.Bb2 Nbd7 9.g3 e5 10.Nf3 0–0 11.Bg2 h6 12.0–0; 8.d3 Nbd7 9.g3 e5 10.Nb3 e4 11.d4 h5 12.Bh3) 8...Nbd7 9.Bh3 0–0 10.Nac2 Nc5 11.Ne3 e5 12.Ndf5; B) 7...Bc5 8.d3 (8.g3 0–0 9.Bg2 Qd6 10.Nf3 Nbd7 11.d4 Bb6 12.0–0; 8.Nb3 Bd6 9.g3 Nbd7 10.Bg2 0–0 11.0–0 c5 12.Nc2; 8.e3 Nbd7 9.Be2 e5 10.Nf3 0–0 11.0–0 h6 12.Bb2; 8.Bb2 Nbd7 9.e3 0–0 10.Be2 e5 11.Nf3 e4 12.Nd4) 8...Nbd7 9.g3 Ng4 10.h3 Ngf6 11.Bg2 0–0 12.0–0; C) 7...e5 8.Nf3 (8.Nb3 Nbd7 9.g3 Bd6 10.Bg2 h5 11.d3 Qe7 12.0–0; 8.Ndc2 Nbd7 9.g3 Nc5 10.Bh3 Nb3 11.Ra2 Bc5 12.0–0) 8...Nbd7 9.Bb2 Bc5 10.e3 0–0 11.Be2 e4 12.Nd4; D) 7...h6 8.g3 (8.e3 Nbd7 9.Be2 e5 10.Nb3 Be7 11.0–0 0–0 12.f4; 8.Bb2 Bc5 9.g3 0–0 10.Bh3 Nbd7 11.0–0 Ne5 12.Bg2; 8.d3 Nbd7 9.g3 e5 10.Nf3 e4 11.de4 Be4 12.Nc2; 8.c4 Bc5 9.Bb2 0–0 10.e3 Nbd7 11.Be2 e5 12.Nb3) 8...Nbd7 9.Bh3 e5 10.Nf3 Bc5 11.0–0 0–0 12.d4; E5) 7...Nbd7 8.g3 (8.d3 e5 9.Nb3 Bd6 10.g3 e4 11.d4 Qe7 12.Nc2 ; 8.Bb2 e5 9.Nf3 Bc5 10.e3 0–0 11.Be2 e4 12.Nd4; 8.e3 Nc5 9.c4 e5 10.Nf3 Bd6 11.Be2 d4 12.d3; 8.Nac2 Bc5 9.g3 e5 10.Nb3 0–0 11.d3 c6 12.Nc5) 8...e5 9.Nf3 Bd6 10.Bg2 0–0 11.0–0 Nc5 12.d4.

6.Na3 a5 7.Nac2 A) 7...ab4 8.cb4 Bd6 9.d3 0–0 10.Nb5 Be5 11.d4 Bd6 12.Nd6; B) 7...Be7 8.b5 (8.g3 ab4 9.cb4 0–0 10.Bh3 c5 11.bc5 Bc5 12.Ba3; 8.e3 0–0 9.Bb5 ab4 10.cb4 Na6 11.Ba3 e5 12.Nf3; 8.Bb2 0–0 9.e3 e5 10.Nf3 Qd6 11.b5 Qe6 12.Be2; 8.d3 0–0 9.g3 e5 10.Nf3 ab4 11.cb4 e4 12.Ne5) 8...e5 9.Nf3 Nbd7 10.g3 c6 11.Bh3 cb5 12.ab5; C) 7...Nbd7 8.e3 (8.Bb2 Bd6 9.g3 Nb6 10.d3 0–0 11.Bh3 ab4 12.a5; 8.g3 ab4 9.cb4 c5 10.bc5 Bc5 11.Bg2 Qb6 12.a5; 8.d3 ab4 9.cb4 c5 10.Nb5 cb4 11.Bd2 b3 12.Ncd4; 8.ba5 e5 9.Nb3 Ne4 10.e3 Qf6 11.Qf3 Qf3 12.gf3) 8...e5 9.Nf3 Bd6 10.Bb5 c6 11.Be2 0–0 12.0–0; D) 7...e5 8.Nf3 (8.Nb3 ab4 9.Nb4 c5 10.Nd3 Qc7 11.Ndc5 Bc5 12.Nc5) 8...Bd6 9.b5 Nbd7 10.g3 Nc5 11.Ne3 0–0 12.Bh3; E) 7...Bd6 8.d3 (8.Nb5 Be7 9.ba5 0–0 10.g3 Ra5 11.Bg2 c6 12.Nbd4; 8.ba5 0–0 9.g3 e5 10.Nb5 Be7 11.d4 c6 12.de5; 8.Bb2 0–0 9.e3 e5 10.Nb5 Be7 11.d4 Nbd7 12.Be2; 8.e3 0–0 9.Be2 ab4 10.cb4 Na6 11.Ba3 Qe7 12.0–0) 8...0–0 9.Nb5 ab4 10.Nd6 Qd6 11.cb4 Na6 12.Bd2.

6.Na3 c5 7.bc5 Bc5 8.Nb3 (8.e3 0–0 9.h4 e5 10.Nb3 Be7 11.h5 Bf5 12.h6; 8.g3 Nc6 9.Nab5 0–0 10.Bg2 a6 11.Nc6 bc6 12.Nd4; 8.Qb3 Nc6 9.Qb7 Nd4 10.cd4 Bd4 11.Nb5 Ba1 12.Nc7; 8.d3 0–0 9.Nb3 Nbd7 10.Nc5 Nc5 11.Nb5 Qe7 12.Ba3; 8.Nab5 a6 9.Nb3 Be7 10.N5d4 0–0 11.e3 e5 12.Nf3) 8...Bb6 (8...Be7 9.g3 Nc6 10.Bg2 0–0 11.0–0 Ne4 12.Nb5) 9.a5 Bc7 (9...Ne4 10.e3 Ba5 11.Na5 Qa5 12.Bb2+= (12.h4–/+); 9...Ba5 10.Na5 Qa5 11.Qb3 Qb6 12.Nb5) 10.Nb5+= a6 (10...Nc6 11.Nc5 Qc8 12.Nc7) 11.Nc7 Qc7 12.Ba3 Nc6 13.e3 Ne4 14.Be2 Qe5 15.f3 Nf6 16.0–0 Ne7 (16...Qc7 17.f4=) 17.Nd4 Qc7 18.Qa4 Qd7 19.Qb4 Nc6 (19...Rc8!?+=) 20.Nc6+/– bc6 21.Qb6 Bf5? (better is 21...Qc8+/–) 22.Ba6+– Qd8 23.Qc6 Nd7 24.Bd6 (24.Bb7!? Ra7 25.a6 Bd3+–) 24...Ra7 25.Bc8 (25.Bb5 Qa8 26.Qa8 Ra8+–) 25...Bd3 26.Rfe1 (better is 26.Rfb1 Bb1 27.Rb1 f6+– (27...Ra5?? 28.Bd7 Qd7 29.Rb8)) 26...f5 (26...Bb5 27.Qb5 Qc8+–) 27.Bc5 Rc7 (27...Kf7 28.Ba7 Qc8+–) 28.Qe6 1–0. jasio – kruk, internet, 2011.

6.Na3 Nc6 7.Nac2 A) 7...Bd6 8.Nc6 (8.Bb2 Nd4 9.Nd4 0–0 10.Qb3 a5 11.Nb5 Be7 12.Nd4; 8.e3 Nd4 9.Nd4 0–0 10.Be2 e5 11.Nb3 b6 12.0–0; 8.g3 Nd4 9.Nd4 0–0 10.Bg2 e5 11.Nb5 Be7 12.d4; 8.d3 Nd4 9.Nd4 e5 10.Nb5 0–0 11.Nd6 Qd6 12.Qb3) 8...bc6 9.g3 0–0 10.Bg2 a5 11.0–0 Qd7 12.d3; B) 7...Qd7 8.Nc6 (8.g3 Be4 9.f3 Bc2 10.Nc2 Bd6 11.Bg2 h5 12.f4; 8.e3 Bd6 9.Nc6 bc6 10.Ba6 0–0 11.0–0 c5 12.bc5; 8.Bb2 a5 9.Nc6 bc6 10.e3 Bd6 11.b5 0–0 12.Be2; 8.d3 Bd6 9.Bg5 a5 10.b5 Nd4 11.cd4 c6 12.Rb1) 8...bc6 9.g3 Bd6 10.Bg2 0–0 11.d3 a5 12.0–0; C) 7...Bc2 8.Nc6 (8.Nc2 Bd6 9.g3 0–0 10.Bg2 Qd7 11.0–0 h6 12.d4) 8...Bd1 9.Nd8 Kd8 10.Kd1 a5 11.ba5 Ne4 12.Ke1; D) 7...Be7 8.Nc6 (8.a5 0–0 9.a6 Nd4 10.Nd4 b6 11.d3 Bd6 12.b5; 8.e3 Nd4 9.Nd4 e5 10.Nb3 0–0 11.Be2 h6 12.0–0; 8.d3 Qd7 9.Nf3 Bd6 10.Bg5 h6 11.Bf6 gf6 12.g3; 8.g3 Nd4 9.Nd4 0–0 10.Bg2 a5 11.b5 h6 12.0–0) 8...bc6 9.g3 a5 10.b5 e5 11.d4 Ne4 12.Bb2; E) 7...Nd4 8.cd4 (8.Nd4 e5 9.Nf3 Bd6 10.Qb3 0–0 11.g3 a5 12.Bh3) 8...Bd6 9.g3 0–0 10.Bg2 c6 11.0–0 a5 12.ba5.

6.Na3 Nc6 7.Nc6 bc6 8.d3 (8.g3 c5 9.bc5 Bc5 10.Bg2 c6 11.0–0 0–0 12.Nc2; 8.Bb2 Bd6 9.g3 0–0 10.Bg2 Qd7 11.0–0 e5 12.b5; 8.Qb3 Bd6 9.g3 0–0 10.Bg2 a5 11.b5 Qd7 12.0–0; 8.e3 Bd6 9.Be2 0–0 10.0–0 Rb8 11.d3 c5 12.Nb5) 8...Rb8 9.Bd2 Bd6 10.g3 0–0 11.Bg2 Qe7 12.0–0.

6.Na3 Nc6 7.e3 A) 7...Bd6 8.Nab5 (8.Nc6 bc6 9.Be2 0–0 10.0–0 Ne4 11.Nc2 c5 12.bc5) 8...Nd4 9.Nd6 cd6 10.ed4 0–0 11.Be2 e5 12.de5; B) 7...Qd7 8.Be2 (8.Qb3 Nd4 9.cd4 Be7 10.Be2 0–0 11.0–0 a5 12.ba5; 8.Nc6 bc6 9.Be2 Bd6 10.0–0 0–0 11.d3 e5 12.Bb2; 8.Nac2 Nd4 9.Nd4 e5 10.Nf3 Bd6 11.Be2 0–0 12.Nh4; 8.Bb5 Bd6 9.f4 a6 10.Nc6 bc6 11.Be2 0–0 12.0–0) 8...Nd4 9.ed4 Bd6 10.0–0 0–0 11.Qb3 a5 12.Nb5; C) 7...Ne5 8.d3 (8.Qb3 Ne4 9.d3 Nf6 10.Qb1 a5 11.ba5 c5 12.Qb5; 8.Bb2 Be7 9.d3 a5 10.b5 c5 11.bc6 bc6 12.f4) 8...a5 9.f4 Ned7 10.Nac2 e5 11.fe5 Ne5 12.Be2; D) 7...Be7 8.Nc6 (8.Qb3 0–0 9.Be2 Nd4 10.ed4 a5 11.0–0 ab4 12.cb4; 8.Be2 Nd4 9.ed4 a5 10.b5 0–0 11.0–0 c5 12.Bb2; 8.Bb5 Qd6 9.0–0 0–0 10.Be2 Nd4 11.ed4 a5 12.b5; 8.Nac2 Nd4 9.Nd4 0–0 10.Be2 a5 11.ba5 Qd7 12.0–0) 8...bc6 9.Be2 0–0 10.0–0 a5 11.b5 Qd7 12.Bb2; E) 7...Nd4 8.ed4 c6 9.Be2 Bd6 10.0–0 Qc7 11.h3 0–0 12.d3.

6.Na3 Nc6 7.Nf3 A) 7...Be7 8.d3 (8.g3 Ne4 9.Bg2 0–0 10.0–0 Bf6 11.Nc2 h5 12.Bb2; 8.Bb2 0–0 9.e3 Ne4 10.d3 Nd6 11.b5 Na5 12.Ne5; 8.e3 0–0 9.Bb2 h6 10.Be2 Qd6 11.Nb5 Qd7 12.Nbd4; 8.h4 0–0 9.d3 h6 10.b5 Na5 11.g3 Bd6 12.Bh3) 8...0–0 9.b5 Na5 10.g3 c5 11.Bg2 c4 12.dc4; B) 7...Bd6 8.Nb5 (8.g3 Be4 9.Bg2 0–0 10.Nb5 Be7 11.0–0 h6 12.d3; 8.d3 a6 9.g3 0–0 10.Bg2 h6 11.0–0 Qd7 12.Qb3; 8.Bb2 0–0 9.Nb5 Be7 10.e3 a6 11.Nbd4 Nd4 12.ed4) 8...0–0 9.Nd6 cd6 10.d3 e5 11.g3 e4 12.de4; C) 7...h6 8.e3 (8.g3 Bd6 9.Nb5 0–0 10.Nd6 cd6 11.d3 Qc7 12.Bg2; 8.d3 Be7 9.b5 Na5 10.g3 0–0 11.Bg2 Bd6 12.0–0; 8.Bb2 Bd6 9.Nb5 Be7 10.e3 0–0 11.Be2 a5 12.ba5; 8.h3 Bd6 9.Nb5 0–0 10.Nd6 cd6 11.d3 e5 12.b5) 8...Be7 9.Be2 0–0 10.Bb2 a6 11.b5 ab5 12.ab5; D) 7...Ne4 8.Qb3 (8.Bb2 d4 9.Qb3 dc3 10.Bc3 Bd6 11.Nc4 0–0 12.Nd6; 8.e3 Qf6 9.Nb5 0–0–0 10.Ba3 e5 11.d3 Nd6 12.Be2; 8.h4 Be7 9.Bb2 Bf6 10.g4 h6 11.Qb3 a5 12.h5) 8...a5 9.b5 Nc5 10.Qd1 Nb8 11.Nc2 Nbd7 12.g3; E) 7...a6 8.d3 (8.b5 Na5 9.d3 Bd6 10.g3 0–0 11.Bg2 h6 12.0–0; 8.Qb3 Bd6 9.g3 0–0 10.Bg2 Be4 11.0–0 a5 12.b5; 8.g3 Ne4 9.Qb3 Qf6 10.Bb2 Bh5 11.Bg2 Bd6 12.d3; 8.Bb2 Bd6 9.g3 0–0 10.Bg2 a5 11.b5 Ne5 12.0–0) 8...Bd6 9.g3 0–0 10.Bg2 h6 11.0–0 Qd7 12.Qb3.

6.Na3 e5 7.Nb3 A) 7...a6 8.g3 (8.Bb2 Nc6 9.b5 ab5 10.ab5 Na5 11.Na5 Ra5 12.Qb3; 8.e3 Bd6 9.h4 Nc6 10.Bb2 0–0 11.h5 Bf5 12.h6; 8.f3 Nc6 9.Bb2 Be7 10.e3 0–0 11.Be2 Re8 12.0–0; 8.d3 Nc6 9.g3 d4 10.b5 ab5 11.ab5 Na5 12.Na5) 8...Be7 9.Bg2 0–0 10.0–0 Nc6 11.d3 h6 12.Nc2; B) 7...Be7 8.g3 (8.e3 0–0 9.Be2 Nbd7 10.Bb2 c6 11.0–0 h6 12.f4; 8.Bb2 0–0 9.e3 Nc6 10.Be2 a6 11.0–0 Bd6 12.Nc5; 8.d4 Nbd7 9.de5 Ne5 10.Bf4 Bd6 11.Nb5 0–0 12.e3; 8.d3 0–0 9.g3 d4 10.Bg2 dc3 11.Bb7 Nbd7 12.Ba8) 8...0–0 9.Bg2 Nbd7 10.0–0 h5 11.d3 h4 12.Na5; C) 7...c6 8.g3 (8.d3 Bd6 9.g3 0–0 10.Bg2 Nbd7 11.0–0 e4 12.d4; 8.Bb2 Nbd7 9.g3 h5 10.Bh3 h4 11.Nc2 hg3 12.hg3; 8.e3 Nbd7 9.Bb2 Bd6 10.Be2 0–0 11.0–0 Re8 12.Nc2; 8.Nc2 Nbd7 9.g3 Bd6 10.Bg2 h5 11.d3 h4 12.Bg5) 8...Nbd7 9.d3 Be7 10.Bg2 h5 11.Bg5 Ng4 12.Be7; D) 7...h6 8.g3 (8.d3 Be7 9.g3 0–0 10.Bg2 a6 11.0–0 Qd6 12.Nc2; 8.e3 Be7 9.Be2 0–0 10.0–0 Nbd7 11.Bb2 c6 12.f4; 8.Bb2 Be7 9.e3 0–0 10.Be2 Qd7 11.0–0 a6 12.Nc5; 8.d4 Ne4 9.Bb2 Nc6 10.e3 ed4 11.Nd4 Qf6 12.Qf3) 8...Bd6 9.Nb5 0–0 10.Bg2 Be7 11.d4 a6 12.de5; E) 7...Nbd7 8.g3 (8.e3 c6 9.Be2 Bd6 10.0–0 0–0 11.Bb2 Qc7 12.Nc2; 8.d3 c5 9.Bd2 Be7 10.Nc5 Nc5 11.bc5 Bc5 12.Nb5; 8.Bb2 Be7 9.e3 0–0 10.Be2 c6 11.0–0 Qb6 12.a5; 8.Na5 Qc8 9.d4 Bd6 10.Nb5 0–0 11.f3 a6 12.Nd6) 8...c5 9.bc5 Nc5 10.d4 ed4 11.Nd4 Nfe4 12.Bb2.

6.Na3 e5 7.Ndc2 A) 7...Bd6 8.g3 (8.Nb5 0–0 9.Nd6 Qd6 10.e3 Nbd7 11.Be2 a5 12.0–0; 8.Ne3 a5 9.b5 Nbd7 10.g3 0–0 11.Bg2 c6 12.0–0; 8.e3 Nc6 9.Be2 0–0 10.0–0 a5 11.ba5 Na5 12.Nb5; 8.f3 0–0 9.Nb5 Be7 10.d4 e4 11.Bf4 Na6 12.Be5) 8...0–0 9.Bg2 a5 10.b5 Nbd7 11.Ne3 c6 12.0–0; B) 7...Be7 8.g3 (8.d4 Nbd7 9.de5 Ne5 10.Bf4 Bd6 11.Nb5 0–0 12.e3; 8.e3 0–0 9.Be2 Nc6 10.0–0 Qd7 11.Bb2 Rfe8 12.d4; 8.Bb2 Nbd7 9.g3 Nb6 10.Ne3 d4 11.cd4 ed4 12.Nec2) 8...Nc6 9.Bg2 0–0 10.0–0 Qd7 11.Ne3 Be4 12.Be4; C) 7...Nc6 8.g3 (8.Bb2 Be7 9.g3 h5 10.Bh3 0–0 11.b5 Na5 12.Ne3; 8.e3 a6 9.Be2 Bd6 10.b5 ab5 11.ab5 Na5 12.Nb4; 8.d3 h5 9.b5 Na5 10.Ne3 a6 11.Qc2 Bc5 12.g3) 8...Be4 9.f3 Bg6 10.Bh3 Bd6 11.Ne3 0–0 12.0–0; D) 7...h6 8.g3 (8.Bb2 Nbd7 9.g3 Nb6 10.Ne3 d4 11.cd4 ed4 12.Nec2; 8.d4 Nbd7 9.g3 c6 10.Bg2 Bd6 11.0–0 0–0 12.c4; 8.e3 Be7 9.Be2 0–0 10.0–0 Nc6 11.Bb2 a6 12.f4; 8.d3 Be7 9.g3 0–0 10.Bg2 a5 11.0–0 Nbd7 12.Bd2) 8...a5 9.Bg2 ab4 10.Nb4 Nc6 11.Nac2 Nb4 12.Nb4; E) 7...a5 8.Bb2 (8.e3 Be7 9.Be2 0–0 10.0–0 Na6 11.ba5 Nc5 12.Nb4; 8.ba5 Nc6 9.Nb5 Na5 10.d4 c6 11.de5 Ne4 12.e3; 8.b5 Nbd7 9.g3 Nc5 10.Bg2 Nb3 11.Ra2 Nc1 12.Qc1; 8.g3 ab4 9.Nb4 Nc6 10.Nc6 bc6 11.Bg2 Bd6 12.Nc2) 8...Be7 9.e3 0–0 10.Be2 Qd7 11.ba5 Nc6 12.0–0.

6.Na3 e5 7.Nf3 A) 7...Bd6 8.g3 (8.Nb5 0–0 9.Nd6 cd6 10.e3 a5 11.Ba3 ab4 12.cb4; 8.d3 c6 9.g3 0–0 10.Nh4 Nbd7 11.Ng6 fg6 12.Bh3; 8.c4 Nc6 9.c5 e4 10.cd6 ef3 11.dc7 Qc7 12.gf3; 8.e3 c6 9.Nh4 Nbd7 10.Ng6 hg6 11.Bb2 e4 12.Be2) 8...Nc6 9.Bg2 0–0 10.0–0 a5 11.b5 e4 12.Nh4; B) 7...e4 8.Nd4 (8.Ne5 Bd6 9.d4 Nc6 10.Ng6 hg6 11.Bg5 a5 12.b5; 8.Nh4 Nc6 9.d4 Bh5 10.g3 Qd7 11.Bg2 h6 12.h3) 8...Be7 9.g3 0–0 10.Bg2 Nc6 11.Nac2 Ne5 12.0–0; C) 7...a5 8.Ne5 (8.ba5 Nc6 9.e3 Qd7 10.Nb5 Ra5 11.d4 ed4 12.ed4; 8.e3 Nbd7 9.Qb3 c6 10.Nh4 Bd6 11.Ng6 fg6 12.Be2; 8.Bb2 Nbd7 9.ba5 Ra5 10.c4 d4 11.e3 de3 12.fe3; 8.Qb3 ab4 9.cb4 Nc6 10.b5 Na5 11.Qb2 e4 12.Nd4) 8...ab4 9.cb4 Bb4 10.Nc2 Bd6 11.Ng6 hg6 12.Bb2; D) 7...Nbd7 8.d3 (8.Qb3 Be7 9.Nh4 0–0 10.g3 a5 11.Ng6 hg6 12.Bh3; 8.Nh4 Be7 9.g3 a5 10.Ng6 hg6 11.b5 Nc5 12.Bg2; 8.e3 Be7 9.Be2 0–0 10.0–0 a5 11.b5 h6 12.Bb2; 8.g3 a5 9.Nc2 ab4 10.cb4 Bc2 11.Qc2 Bb4 12.Bb2) 8...Be7 9.Nh4 0–0 10.Ng6 hg6 11.g3 a5 12.b5.

6.d3 Nbd7 7.a5 a6 8.Bg5 h6 9.Bf6 (9.Bh4 e5 10.Nf3 e4 11.de4 de4–/+) 9...Nf6 10.e3 c5 11.Qa4 Qd7 12.bc5 Bc5 13.Qd7 Kd7 14.Nf3 Rhc8 (14...Bd6!?=+) 15.Ne5= Kd6 16.d4 Ba7 17.Ng6 fg6 18.Bd3 g5 19.Ra4 Bb8 20.c4 dc4 21.Bc4 (< 21.Rc4 Rc4 22.Bc4 Bc7–/+) 21...Bc7 22.Nd2 Bd8 (22...Ke7 23.Ke2+=) 23.e4 Ke7 24.Ke2 Rc7 (24...b5 25.ab6 Bb6 26.e5+=) 25.e5 Nd5 26.Bd5 ed5 27.Rb1 Rb8 28.Ra3 Rc2 29.Kd3 Rc6 30.Re1 Ke6 31.h3 Rbc8 (31...Be7 32.Ra4+=) 32.Rb1+/– R8c7 33.Rab3 (33.Nf3!?+/–) 33...Rf7= 34.Rb7 Rf2 35.Nb3 Rg2 36.Rg7 Rg3 37.Kd2 Rh3 (37...Rcc3 38.Rg8 Rgd3 (< 38...Rb3 39.Rb3 Rb3 40.Rd8+=; 38...Rh3?! 39.Rd8 Rcd3 40.Kc2 Rc3 41.Kd1 Rb3 42.Rb3 Rb3 43.Rd6 Kf5 44.Kc2=+) 39.Ke2 Be7–/+ (39...Rb3?! 40.Rb3 Rb3 41.Rd8+=)) 38.Rg6+/– Kd7 39.Rg7 (better is 39.Nc5!? Rc5 40.dc5 Ba5 41.Ke2 Rh2 42.Ke3+/–) 39...Ke6 (39...Kc8 40.Rg8=+) 40.Rg6= Kd7 41.Rg7?? (better is 41.Nc5 Rc5 42.dc5 Ba5 43.Ke2 Rh2 44.Ke3+/–) ½–½. marekt (2190) – califor2 (1990), ICC, 2003.

6.d3 Be7 7.Bf4 0–0 8.a5 a6 9.e3 c5 (9...Nbd7 10.Nf3=+) 10.bc5= Bc5 11.Be2 Nc6 12.Nc6 bc6 13.Qa4 Qd7 14.Be5 Be7 15.0–0 Rfd8 16.Qf4 Bd6 17.Nd2 Be5 18.Qe5 Rdb8 19.Rfb1 Rb7 (19...Rb5 20.Nf3=) 20.Rb7+= Qb7 21.Rb1 Qd7 22.Rb8 Rb8 23.Qb8 Qe8 24.Qb7 h6 25.Qa6 Qe7 (25...c5 26.Qb6+/–) 26.Qc8 (better is 26.Qc6!? e5 27.d4+–) 26...Kh7+/– 27.a6 Qa3 28.Qb7 (28...Qc3 29.Nf1+–; 28.Qc6 Qa1 29.Nf1 Qa2+–) 1–0. marekt (2200) – califor2 (1980), ICC, 2003.

6.e3 Nbd7 7.d3 c6 8.Be2 Bd6 9.0–0 0–0 10.f4 e5 11.Nc6 bc6 12.f5 Qc7 13.fg6 fg6 14.e4 de4 15.de4 Ne4 16.Be3 Rf1 17.Bf1 (17.Qf1 Nef6=) 17...Rf8 18.Qc2 Ndf6 19.Bc4 Kh8 20.Nd2 Nd2 21.Qd2 e4 22.h3 Nh5 23.Kh1 Bh2 (better is 23...Ng3 24.Kg1 Nf5–/+) 24.g4+= Nf4?? (better is 24...Ng3 25.Kg2 Nh5 26.gh5 Qg3 27.Kh1 Qh3+=) 25.Qh2+– (25.Kh2 Ne2 26.Bf4 Rf4–+ (26...Qf4?! 27.Qf4 Nf4 28.b5=; 26...Nf4?! 27.Kh1–+)) 25...Qe5 (25...g5 26.Rf1+–) 26.Bd4 (26.Ba7 Qc3 27.Rg1 Qc4–/+) 26...Qg5 (26...Qc7 27.Bc5 Ra8 28.g5+–) 27.Bc5 (27.Rf1!? a5 28.Be3 ab4 29.cb4 h6+–) 27...Rd8 (27...Rf6 28.Qd2 Ne6 29.Qg5 Ng5 30.Rd1+–) 28.Be3 Rf8 (28...Qe5 29.Qf4 Qc3 30.Rc1 Qb4 31.Qe4+–) 29.Rf1 (29...Qe5 30.Rf4 Rf4 31.Qf4 Qf4 32.Bf4+–) 1–0. marekt (2175) – kfj (1920), ICC, 2003.

6.Na3 Nbd7

7.Bb2 A) 7...Be7 8.g3 (8.e3 a5 9.Nac2 0–0 10.Be2 ab4 11.cb4 c5 12.bc5; 8.Nac2 0–0 9.e3 c5 10.Nf3 Rc8 11.d3 cb4 12.Nb4; 8.h4 c5 9.bc5 Nc5 10.e3 Bd3 11.Be2 Nfe4 12.h5; 8.Nf3 a5 9.Nc2 0–0 10.e3 ab4 11.cb4 Bd6 12.Be2) 8...a5 9.Bg2 ab4 10.cb4 Bb4 11.Nac2 Be7 12.0–0; B) 7...a6 8.g3 (8.Nac2 Bd6 9.g3 c5 10.bc5 Nc5 11.Ne3 e5 12.Ndf5; 8.Nf3 Bd6 9.g3 c5 10.Nc2 0–0 11.Bg2 cb4 12.Nb4; 8.e3 c5 9.bc5 Nc5 10.Nac2 Bd6 11.Nb4 0–0 12.a5; 8.h4 Bd6 9.e3 c5 10.bc5 Nc5 11.h5 Nd3 12.Bd3) 8...c5 9.bc5 Nc5 10.c4 Qb6 11.Ra2 e5 12.a5; C) 7...e5 8.Nf3 (8.Nb3 Be7 9.e3 0–0 10.Be2 c5 11.bc5 Nc5 12.Nc5; 8.Ndc2 Be7 9.g3 Nb6 10.Ne3 d4 11.cd4 ed4 12.Nec2) 8...Be7 9.e3 a5 10.Be2 ab4 11.cb4 Bb4 12.Ne5; D) 7...c5 8.bc5 (8.Ndc2 Be7 9.g3 Nb6 10.e3 0–0 11.Nb5 Nc4 12.Bc4) 8...Bc5 9.e3 0–0 10.Be2 Ne5 11.c4 Rc8 12.Ne6; E) 7...a5 8.Nac2 (8.ba5 Ra5 9.e3 c6 10.c4 Nb6 11.cd5 ed5 12.Nb1; 8.Qb3 Be7 9.e3 0–0 10.Nac2 ab4 11.cb4 c5 12.Nf3; 8.b5 e5 9.Nf3 Bc5 10.e3 0–0 11.Be2 e4 12.Nd4) 8...e5 9.Nf3 Bd6 10.g3 Nb6 11.Bg2 Nc4 12.Qc1.

7.d3 A) 7...c5 8.bc5 Bc5 9.g3 Qb6 10.Bh3 e5 11.Rb1 Qa6 12.Nf5; B) 7...a5 8.ba5 (8.Bd2 Be7 9.g3 e5 10.Nf3 ab4 11.cb4 0–0 12.Nh4; 8.Nac2 Be7 9.g3 e5 10.Nf3 0–0 11.Nh4 ab4 12.cb4; 8.Rb1 ab4 9.cb4 c5 10.bc5 Bc5 11.Nab5 0–0 12.Bd2; 8.b5 Bd6 9.g3 e5 10.Nf3 0–0 11.Bh3 e4 12.de4) 8...Be7 9.Nb3 0–0 10.g3 Nc5 11.Bf4 c6 12.Bg2; C) 7...e5 8.Nf3 (8.Nb3 c5 9.bc5 Nc5 10.Be3 Ne6 11.g3 Ng4 12.Bd2) 8...Be7 9.Nh4 0–0 10.Ng6 fg6 11.g3 c5 12.b5; D) 7...Be7 8.g3 (8.Nb3 0–0 9.g3 c5 10.bc5 Nc5 11.Bh3 Na4 12.Nb5; 8.Nf3 a5 9.Bd2 0–0 10.g3 e5 11.Nh4 Bh5 12.Nf5; 8.Nac2 0–0 9.g3 c5 10.Nf3 c4 11.dc4 dc4 12.Bg2; 8.h3 0–0 9.g4 a5 10.Nac2 ab4 11.cb4 c5 12.bc5) 8...a5 9.ba5 0–0 10.Nb3 Nc5 11.Nb5 Nb3 12.Qb3.

7.e3 A) 7...a5 8.Qb3 (8.ba5 Ra5 9.Be2 Be7 10.0–0 0–0 11.f4 Ne4 12.Bb2; 8.Nac2 e5 9.Nf3 Bd6 10.Be2 Qe7 11.0–0 h6 12.Bb2; 8.b5 Bd6 9.Be2 0–0 10.0–0 Nc5 11.f4 Qd7 12.Bb2) 8...c6 9.Be2 e5 10.Nf3 Qb6 11.b5 Bd6 12.Qb2; B) 7...Be7 8.Be2 (8.Bb2 0–0 9.Be2 a5 10.b5 Nc5 11.0–0 Nd3 12.Qb3; 8.Nb3 0–0 9.Be2 c6 10.0–0 Qb6 11.Bb2 h6 12.a5; 8.Nac2 0–0 9.Bb2 c5 10.Nf3 Rc8 11.a5 Bd6 12.a6; 8.h4 e5 9.Nb3 h5 10.Bb2 0–0 11.Be2 e4 12.0–0) 8...a5 9.0–0 0–0 10.Nac2 ab4 11.cb4 c5 12.bc5; C) 7...c6 8.Be2 (8.Bb2 Bd6 9.Be2 0–0 10.0–0 a5 11.Nac2 Nb6 12.d3; 8.a5 e5 9.Nf3 Bd6 10.Bb2 0–0 11.Be2 e4 12.Nd4; 8.Nac2 Bd6 9.Be2 0–0 10.0–0 e5 11.Nb3 Qe7 12.Bb2; 8.Qb3 Be7 9.Be2 0–0 10.0–0 c5 11.bc5 Nc5 12.Qd1) 8...e5 9.Nf3 a5 10.b5 Bd6 11.0–0 Qc7 12.Nh4; D) 7...c5 8.bc5 Bc5 9.Be2 e5 10.Nb3 0–0 11.0–0 Be7 12.f4; E) 7...e5 8.Nf3 (8.Nb3 c6 9.Bb2 Be7 10.Be2 0–0 11.0–0 Qc7 12.f4; 8.Ndc2 Bd6 9.Be2 0–0 10.0–0 c6 11.c4 Qc7 12.cd5) 8...Be7 9.Be2 0–0 10.0–0 a5 11.Nc2 c6 12.b5.

7.g3 A) 7...c5 8.bc5 (8.Ndc2 cb4 9.Nb4 Qb6 10.e3 Bb4 11.cb4 a6 12.b5) 8...Bc5 9.d3 Qb6 10.Bg2 e5 11.Rb1 Qa6 12.Nb3; B) 7...e5 8.Nb3 (8.Ndc2 a5 9.Bg2 c6 10.b5 Bd6 11.0–0 0–0 12.bc6; 8.Nf3 a5 9.b5 Bc5 10.Bg2 0–0 11.0–0 e4 12.Nd4) 8...c5 9.bc5 Nc5 10.a5 Be7 11.Nc5 Bc5 12.a6; C) 7...Be7 8.Bg2 (8.Nb3 h5 9.d3 h4 10.Bh3 c6 11.Bd2 hg3 12.hg3; 8.Bh3 a5 9.b5 e5 10.Nf3 0–0 11.0–0 Ne4 12.Bb2; 8.Bb2 0–0 9.Bh3 c5 10.bc5 Nc5 11.0–0 Qd7 12.a5; 8.d3 a5 9.ba5 0–0 10.Bg2 Ra5 11.0–0 e5 12.Nf3) 8...a5 9.b5 0–0 10.0–0 Nc5 11.f4 h5 12.Nac2; D) 7...a5 8.Nac2 (8.ba5 Ra5 9.Bg2 Be7 10.0–0 0–0 11.d3 e5 12.Nf3; 8.b5 e5 9.Nf3 Bd6 10.Bh3 0–0 11.0–0 Nc5 12.d4; 8.Qb3 ab4 9.cb4 c5 10.bc5 Nc5 11.Qb5 Nfd7 12.Qb2; 8.Ndc2 ab4 9.Nb4 Nb6 10.Bg2 Be7 11.0–0 0–0 12.Nac2) 8...ab4 9.cb4 c5 10.bc5 Bc5 11.Bg2 Qb6 12.a5.

7.h4 A) 7...Be7 8.e3 (8.Bb2 0–0 9.e3 h5 10.Be2 c5 11.bc5 Nc5 12.0–0; 8.d3 0–0 9.e3 h5 10.Be2 a5 11.Nac2 e5 12.Nb3; 8.Nac2 0–0 9.e3 h5 10.Bb2 Ng4 11.Nf3 Nb6 12.d3; 8.g3 e5 9.Nb3 0–0 10.Bg2 Ne4 11.0–0 c5 12.Nc2) 8...e5 9.Nf3 0–0 10.Bb2 a5 11.Nc2 h5 12.Be2; B) 7...c6 8.e3 (8.Bb2 Bd6 9.e3 e5 10.Nb3 h6 11.Be2 0–0 12.0–0 ; 8.Nac2 e5 9.Nf3 Bd6 10.e3 0–0 11.Be2 a5 12.0–0; 8.a5 e5 9.Nf3 Bd6 10.Bb2 0–0 11.a6 b5 12.e3; 8.d3 e5 9.Nb3 Bd6 10.e4 de4 11.h5 Bf5 12.de4) 8...e5 9.Nb3 Bd6 10.h5 Bf5 11.h6 gh6 12.Rh6; C) 7...c5 8.bc5 (8.Ndc2 Ne4 9.e3 cb4 10.cb4 Qf6 11.Qf3 Rc8 12.Qf6) 8...Bc5 9.e3 h5 10.Qb3 0–0 11.Be2 Rb8 12.0–0; D) 7...e5 8.Nb3 (8.Nf3 Be7 9.e3 a5 10.ba5 0–0 11.d4 e4 12.Nd2 ; 8.Ndc2 Be7 9.e3 h5 10.Be2 Ne4 11.Bb2 Bh4 12.0–0) 8...Be7 9.e3 h6 10.Bb2 0–0 11.Be2 c6 12.0–0; E) 7...a5 8.Qb3 (8.ba5 Ra5 9.d3 c6 10.g4 Ng4 11.h5 Bf5 12.f3 ; 8.Nac2 e5 9.Nf3 Bd6 10.b5 0–0 11.Ne3 Nc5 12.Bb2; 8.e3 ab4 9.cb4 e5 10.Ndc2 c6 11.h5 Bf5 12.Bb2; 8.b5 Bd6 9.Nac2 0–0 10.Ne3 Nc5 11.d3 e5 12.Nb3) 8...Be7 9.d3 0–0 10.Nac2 ab4 11.cb4 c5 12.bc5.

6.Na3 Be7

7.Bb2 A) 7...a5 8.b5 (8.Nac2 0–0 9.e3 ab4 10.cb4 Nbd7 11.h4 h5 12.Be2; 8.e3 0–0 9.Nac2 ab4 10.cb4 Nbd7 11.h4 h5 12.Be2; 8.Qb3 Na6 9.Nac2 ab4 10.cb4 c5 11.bc5 Nc5 12.Qb5; 8.ba5 0–0 9.e3 e5 10.Nf3 Nbd7 11.Be2 c6 12.c4) 8...Nbd7 9.g3 0–0 10.Bg2 Nb6 11.d3 e5 12.Nf3; B) 7...Nbd7 8.g3 (8.Nb3 0–0 9.e3 a6 10.Be2 Nb6 11.Nc5 Qe8 12.Nb7; 8.e3 a5 9.Nac2 0–0 10.Be2 ab4 11.cb4 Nb6 12.a5; 8.h4 c5 9.bc5 Nc5 10.e3 Bd3 11.Be2 Nfe4 12.Nac2; 8.Nac2 c5 9.Nf3 0–0 10.e3 Qc7 11.Be2 a5 12.bc5) 8...c5 9.bc5 Nc5 10.Bh3 0–0 11.0–0 Qd7 12.a5; C) 7...e5 8.Nf3 (8.Nb3 0–0 9.e3 a6 10.Be2 Nc6 11.0–0 Re8 12.b5) 8...Nbd7 9.g3 0–0 10.Bh3 a5 11.b5 e4 12.Nd4; D) 7...Nc6 8.Nc6 (8.e3 Nd4 9.ed4 0–0 10.Be2 a5 11.b5 c5 12.0–0; 8.Qb3 0–0 9.e3 a5 10.Be2 Nd4 11.ed4 ab4 12.cb4; 8.Nac2 Nd4 9.Nd4 0–0 10.e3 e5 11.Nb3 b6 12.Bb5; 8.Nf3 0–0 9.e3 a6 10.Be2 Qd6 11.0–0 h6 12.Qb3) 8...bc6 9.g3 0–0 10.Bg2 c5 11.b5 a6 12.c4; E) 7...0–0 8.e3 (8.g3 a5 9.b5 e5 10.Nf3 e4 11.Nd4 Nbd7 12.Bh3 ; 8.h4 a6 9.e3 h5 10.Be2 Nbd7 11.0–0 Ne5 12.d3; 8.Nac2 e5 9.Nb3 Nbd7 10.e3 Nb6 11.d4 Nc4 12.Bc4; 8.d3 Nbd7 9.Qb3 e5 10.Nf3 c6 11.g3 a5 12.Bh3) 8...a5 9.b5 e5 10.Nf3 Qd6 11.Be2 Nbd7 12.0–0.

7.d3 A) 7...Nbd7 8.g3 (8.Nf3 a5 9.Bd2 ab4 10.cb4 0–0 11.g3 e5 12.Nh4; 8.Qb3 0–0 9.Nf3 a5 10.Bd2 c6 11.Nc2 Qb6 12.Rb1; 8.Bd2 0–0 9.Nf3 c6 10.g3 a5 11.Bg2 h5 12.0–0; 8.h3 0–0 9.g4 a5 10.Nac2 ab4 11.cb4 c5 12.bc5) 8...a5 9.ba5 0–0 10.Nb3 Nc5 11.Nb5 Nb3 12.Qb3; B) 7...a5 8.ba5 (8.Qb3 Nbd7 9.g3 0–0 10.Bg2 ab4 11.cb4 c5 12.bc5; 8.Bd2 0–0 9.g3 e5 10.Nf3 e4 11.Ne5 ed3 12.ed3; 8.Nac2 Nbd7 9.g3 e5 10.Nf3 0–0 11.Nh4 ab4 12.cb4; 8.Rb1 Nbd7 9.g3 0–0 10.Bh3 ab4 11.cb4 c5 12.bc5) 8...e5 9.Nf3 Nc6 10.Rb1 Qc8 11.Nc2 Bd6 12.Bg5; C) 7...e5 8.Nf3 (8.Nb3 0–0 9.g3 d4 10.Bg2 dc3 11.Bb7 Nbd7 12.Ba8) 8...Nbd7 9.Nh4 0–0 10.g3 a5 11.Ng6 fg6 12.b5; D) 7...0–0 8.Bf4 (8.h3 Nbd7 9.g4 a5 10.ba5 Nc5 11.Bf4 c6 12.Nb3; 8.Bd2 Nbd7 9.Nf3 e5 10.Nh4 e4 11.Bf4 d4 12.Ng6; 8.g3 a5 9.ba5 e5 10.Nb3 Nc6 11.Bh3 d4 12.Nb5; 8.Nf3 a5 9.Bd2 ab4 10.cb4 Nc6 11.Qb3 h6 12.Rc1) 8...Nbd7 9.Nf3 a5 10.b5 Bc5 11.d4 Be7 12.g3.

7.e3 A) 7...a5 8.b5 (8.Bb2 0–0 9.Nac2 e5 10.Nf3 Qd6 11.b5 h6 12.Be2; 8.Nac2 0–0 9.Bb2 e5 10.Nf3 Qd6 11.b5 Qe6 12.Be2; 8.ba5 0–0 9.Be2 e5 10.Nf3 Nc6 11.0–0 Ne4 12.Nb5; 8.Qb3 0–0 9.ba5 Qc8 10.Be2 e5 11.Nf3 Nc6 12.0–0) 8...0–0 9.Be2 Nbd7 10.0–0 Ne4 11.Nac2 e5 12.Nb3; B) 7...Nbd7 8.Be2 (8.Nb3 0–0 9.Be2 c6 10.0–0 Qb6 11.Bb2 Ne5 12.d3; 8.Bb2 0–0 9.Be2 a5 10.Nac2 ab4 11.cb4 Nb6 12.a5; 8.h4 e5 9.Nb3 h6 10.Be2 0–0 11.0–0 Ne4 12.h5; 8.Bb5 a5 9.Nac2 c6 10.Be2 0–0 11.0–0 e5 12.Nf3) 8...a5 9.Nac2 e5 10.Nf3 0–0 11.0–0 c6 12.b5; C) 7...e5 8.Nb3 (8.Nf3 Nbd7 9.Be2 0–0 10.0–0 a5 11.b5 h6 12.h3; 8.Ndc2 0–0 9.Be2 Nc6 10.0–0 Qd7 11.Bb2 e4 12.a5) 8...Nbd7 9.Be2 0–0 10.0–0 c6 11.f4 h6 12.f5; D) 7...Nc6 8.Qb3 (8.Be2 Nd4 9.ed4 a5 10.b5 0–0 11.0–0 c5 12.Nc2; 8.Nc6 bc6 9.Be2 0–0 10.0–0 a5 11.b5 c5 12.Bb2; 8.Bb5 Qd6 9.Be2 Nd4 10.ed4 a5 11.ba5 0–0 12.a6; 8.Nac2 Nd4 9.Nd4 e5 10.Nf3 Qd6 11.Be2 0–0 12.0–0) 8...0–0 9.Be2 Nd4 10.ed4 a5 11.0–0 ab4 12.cb4; E) 7...0–0 8.Bb2 (8.Nac2 Nbd7 9.Be2 c5 10.bc5 Nc5 11.0–0 e5 12.Nf3; 8.f4 a5 9.Nac2 ab4 10.cb4 Na6 11.Ba3 Ne4 12.Be2; 8.Be2 a5 9.b5 Nbd7 10.0–0 Ne4 11.c4 Nb6 12.cd5; 8.h4 e5 9.Nb3 Bf5 10.h5 h6 11.Be2 Nbd7 12.0–0) 8...a5 9.Nac2 e5 10.Nf3 Qd6 11.b5 Qe6 12.Be2.

7.g3 A) 7...a5 8.b5 (8.ba5 e5 9.Nf3 Nc6 10.Bh3 0–0 11.Nb5 h5 12.d4; 8.Nac2 ab4 9.cb4 0–0 10.Bh3 b6 11.b5 c5 12.bc6; 8.Bg2 ab4 9.cb4 Bb4 10.0–0 0–0 11.Bb2 Nbd7 12.Nac2) 8...0–0 9.Bg2 Nbd7 10.Nac2 e5 11.Nf3 c6 12.Rb1; B) 7...e5 8.Nb3 (8.Nf3 Nbd7 9.Nh4 0–0 10.Ng6 hg6 11.Bg2 a5 12.b5; 8.Ndc2 0–0 9.Bg2 a5 10.0–0 ab4 11.Nb4 Na6 12.Nd3) 8...0–0 9.Bg2 a6 10.0–0 Nc6 11.d3 h6 12.Nc2; C) 7...Nbd7 8.Bh3 (8.Bg2 a5 9.Nac2 0–0 10.0–0 ab4 11.cb4 c5 12.bc5; 8.Nac2 c5 9.bc5 Nc5 10.Bh3 0–0 11.0–0 e5 12.Nf3; 8.d3 a5 9.ba5 0–0 10.Nb3 Nc5 11.Nb5 Nb3 12.Qb3; 8.Bb2 a5 9.b5 0–0 10.Bg2 e5 11.Nf3 e4 12.Nd4) 8...a5 9.Nac2 0–0 10.0–0 ab4 11.cb4 c5 12.bc5; D) 7...h6 8.Bh3 (8.Bg2 0–0 9.0–0 a5 10.b5 Nbd7 11.Bb2 Nc5 12.Nac2; 8.Nac2 0–0 9.Bh3 a5 10.b5 c5 11.bc6 bc6 12.0–0; 8.d3 a5 9.b5 Nbd7 10.Bh3 0–0 11.0–0 Nh7 12.f4; 8.Bb2 0–0 9.Bh3 Nbd7 10.Nac2 c5 11.bc5 Nc5 12.Ne3) 8...a5 9.b5 0–0 10.0–0 Nbd7 11.Nac2 Nc5 12.Ne3; E) 7...0–0 8.Bh3 (8.Nac2 a5 9.b5 Nbd7 10.Bg2 e5 11.Nf3 c6 12.Rb1; 8.Bg2 a5 9.ba5 e5 10.Nf3 Nbd7 11.0–0 c6 12.c4) 8...a5 9.b5 Nbd7 10.0–0 Nc5 11.d3 Qd6 12.Nac2.

7.h3 A) 7...0–0 8.e3 (8.d3 Nbd7 9.g4 a5 10.Nac2 ab4 11.cb4 c5 12.bc5; 8.g4 a5 9.b5 Nbd7 10.d3 Nc5 11.Rg1 e5 12.Nf5; 8.Nac2 h6 9.e3 a6 10.Bb2 e5 11.Nf3 Qd6 12.Be2; 8.Bb2 Nbd7 9.Nb3 c6 10.e3 Ne5 11.d4 Ned7 12.Be2) 8...a5 9.Bb2 ab4 10.cb4 Bb4 11.Nac2 Bc5 12.Be2; B) 7...a5 8.Nac2 (8.b5 e5 9.Nf3 Nbd7 10.e3 0–0 11.Be2 Bd6 12.0–0; 8.ba5 0–0 9.Qb3 Nc6 10.Qb7 Na5 11.Qb2 Rb8 12.Qa2; 8.Qb3 0–0 9.ba5 Nc6 10.Qb7 Na5 11.Qb2 Rb8 12.Qa2; 8.Bb2 ab4 9.cb4 Na6 10.b5 Nc5 11.Nb1 0–0 12.Nf3) 8...Nbd7 9.e3 0–0 10.Be2 ab4 11.cb4 c5 12.bc5; C) 7...h6 8.d3 (8.e3 0–0 9.Bb2 a5 10.b5 e5 11.Nf3 Qd6 12.Be2; 8.Bb2 Nbd7 9.e3 a5 10.Nac2 0–0 11.Be2 ab4 12.cb4; 8.g4 a5 9.b5 Nbd7 10.d3 Nc5 11.Bg2 e5 12.Nf3; 8.Nf3 0–0 9.d3 a5 10.Bd2 Nbd7 11.g4 ab4 12.cb4) 8...0–0 9.g4 a5 10.b5 Nbd7 11.Bg2 Nc5 12.Nac2; D) 7...Nc6 8.e3 (8.Nc6 bc6 9.e3 Ne4 10.Be2 Bd6 11.0–0 Qf6 12.Nc2; 8.Nac2 0–0 9.Nc6 bc6 10.e3 Ne4 11.d3 Nd6 12.Be2; 8.Qb3 0–0 9.d3 Nd4 10.cd4 c6 11.Bd2 Qb6 12.e3; 8.Nf3 Ne4 9.Qb3 d4 10.Nb5 dc3 11.dc3 a6 12.Nbd4) 8...Nd4 9.ed4 0–0 10.Be2 a5 11.ba5 Ra5 12.0–0; E) 7...Nbd7 8.Qb3 (8.d3 a5 9.Bd2 0–0 10.g4 Nb6 11.Bg2 ab4 12.cb4; 8.a5 e5 9.Nf3 0–0 10.a6 b6 11.Bb2 h6 12.e3; 8.Nac2 0–0 9.d3 h6 10.Nf3 a5 11.Bd2 ab4 12.cb4; 8.g4 a5 9.ba5 c5 10.Nb3 c4 11.Nd4 h5 12.g5) 8...0–0 9.d3 a5 10.Bd2 ab4 11.cb4 c5 12.bc5.

2.b5 a6

3.ba6 ba6 4.Nf3 (4.e3+=) 4...f6 (4...Nf6!?+=) 5.d4 (5.Nc3 Nc6+=) 5...e6 6.c4 dc4 (6...Nc6 7.e3+=) 7.e3 (7.Nc3 Nd7 8.e4 Bb4+/–) 7...Bb4 (7...Nc6 8.Nc3+/–) 8.Nbd2 (8.Bd2 Bd2 9.Nbd2 c3+/–) 8...c3 (8...Nc6 9.Bc4 Nge7 10.0–0+/–) 9.Qa4+/– Qd7 (9...Nc6 10.Qc6 Bd7 11.Qe4 cd2 12.Bd2+/–) 10.Qb4 cd2 11.Bd2 (11.Qd2 Bb7+/–) 11...Nc6 12.Qc4 (better is 12.Qc5+/–) 12...e5? (better is 12...Nge7!?+/–) 13.Rc1 (13.de5!? fe5 14.Bc3 Nf6+–) 13...Nge7 14.de5 fe5 (better is 14...Ne5 15.Ne5 fe5 16.Qc7 Qc7 17.Rc7 Be6+–) 15.Ne5?? (better is 15.Bd3 Qe6 16.Qc2+–) 15...Ne5–/+ 16.Qc7 Qc7 17.Rc7 Rb8 (17...N5c6 18.e4–/+) 18.Bc3 (18.Rc5 Rb1 19.Rc1 Rc1 20.Bc1 Kf7–/+) 18...N5c6 19.Bd3 Kd8 20.Rc8 Nc8 (20...Kc8 21.0–0 Rb6 22.Bg7–/+) 21.Bg7 Re8 (21...Rg8 22.Bf6 Kc7 23.0–0–/+) 22.Bh7+= Rb7 (22...Nd6 23.0–0+=) 23.Bf6 N8e7 (23...Kd7 24.Bc2+=) 24.g4 (24.Ke2 Kd7+=) 24...Kc7 (24...Kd7 25.0–0+=) 25.Ke2 (25.Ba1 Nb4+=) 25...Nd5 (25...Rb4 26.g5+=) 26.Ba1 Kb8 (26...Kd6 27.Bf5+=) 27.Bf5= Nf4 (27...Nde7 28.Be4=) 28.Kf3 Nh3 (28...Nd5 29.h4+=) 29.Kg2+= Ng5 30.h4 Ne4 (30...Nf7 31.h5 Nh6 32.Bg6+/–) 31.h5 Ng5? (31...Nd6!? 32.e4 Ne7+= (32...Ne4 33.Re1 Rbe7 34.Bg6+–)) 32.f4 (better is 32.h6+–) 32...Ne4?? (better is 32...Nf7 33.h6 Re3+–) 33.h6+– Ree7 (33...Nd6 34.h7 Nf5 35.gf5 Kc7+–) 34.h7 Rh7 35.Bh7 Rh7 (35...Rb4+–) 36.Rh7 Nb4 (36...Nd6 37.g5 Nc8 38.g6+–) 37.Be5 Kc8 38.Rc7 Kd8 39.Rc4 Nd3 40.Re4 Ne5 41.Re5 1–0. Taulien,Hans_Juergen (2350) – Pichola,Sebastian (2000), remoteschach.de, 2002.

3.Bb2 ab5–/+ 4.Nf3 e6 5.Nc3 (5.e3 b4–/+) 5...Bd7 (5...b4 6.Nb1 Nf6–/+) 6.e4 (6.a3!?–/+) 6...b4–+ 7.Nb5 Bb5 (7...de4!? 8.Ne5 Nf6–+) 8.Bb5–/+ c6 9.Bd3 Nf6 (9...de4 10.Be4 Nf6 11.Qe2–/+) 10.ed5 Nd5 11.0–0 Nd7 12.c4 (12.Re1 N7f6–/+) 12...bc3! 13.dc3 (13.Bc3 Nc3 Combination; 13.dc3 Nc5 Decoy) 13...Be7 (13...Nc5 14.c4 Ne3 15.fe3 Qd3 16.Qc1–/+) 14.c4 N5f6 (14...Nf4 15.Be4–/+) 15.Qc2+= Qa5 16.Bc3 (16.Rfd1 Qa4+=) 16...Qc7 (16...Qa4 17.Qe2+=) 17.Ng5 (17.Rfd1 0–0+=) 17...h6 18.Nf7? (better is 18.Ne4–/+) 18...Kf7 (18...Ng4 19.f4 Kf7 20.Bg6 Kg8 21.Qe2 Bc5 22.Kh1–+) 19.Bg6 Kf8 20.Qe2 e5 21.Rfe1 Ra3 22.Bb2 Qa5 (better is 22...Ra4–+) 23.Ba3+= Qa3 24.Rab1 b6 25.Rb3 Qd6 26.Rd1 Qe6 (26...Qc7 27.Rbd3 Kg8 28.Qf3–/+) 27.Rf3= Bd6 (better is 27...e4 28.Bf5 Qf7=) 28.Qe4?? (better is 28.Qd2 e4 29.Rf6 Qf6 30.Qd6 Qd6 31.Rd6+/–) 28...Ke7–/+ 29.Qc6 (29.Qe2 e4 30.Re3 Nc5–+) 29...e4 30.Be4 (better is 30.Rf6!? Nf6 31.Qb7 Qd7 32.Be4–+) 30...Ne4–+ 31.g3 Ndf6 (31...Ndc5 32.Qb6 Ra8 33.Qb2–+) 32.Re3 (32.Qb7 Qd7 33.Qb6–+) 32...Bc5?? (better is 32...Rc8 33.Qb6 Rc4–+) 33.Qb7 (33.Qc7 Kf8 34.Rd8 Ne8 35.Qf4 Qf6 36.Re8 Ke8 37.Qe4 Kd8 38.Qa8 Kc7 39.Qh8 Qa1 40.Kg2 Be3 41.fe3 Qb2 42.Kh3 Qf6+–) 33...Ke8 34.Qb8?? (34.Qc7 Qe7 35.Qb8 Kf7 36.Qh8 Be3 37.fe3–+) 34...Kf7–/+ 35.Qc7?? (35.Qh8 Qf5 36.Re2 Nf2 37.Qa8 Nd1 38.Kg2 Ne3 39.Re3 Be3 40.h4–+) 35...Kg6–+ 36.Re2 (36.Qf4 Be3 37.Qe3–+) 36...Qc4 37.Kf1 Nc3 38.Rde1 Ne2 39.Re2 Re8 0–1. Reva_Nikitina,Zoya N (1800) – Gavrilov,Yuri (2080), Konakovo RUS, Chervonny Open, 2012.

3.b6 cb6 4.Ba3 (4.Nf3 Nc6–/+) 4...a5 (4...Nc6!?–/+) 5.e3=+ Nf6 6.Qf3 (6.Nf3 Bg4=+) 6...Nc6 7.Bb5 Bd7 (7...e5 8.Bf8 Kf8 9.a4–/+) 8.Nc3 g6 (better is 8...Rc8!?=+) 9.Nd5+= Nd5 10.Qd5 e6 11.Qb3 Bg7 (11...Ba3 12.Qa3 Rc8 13.Qb2=) 12.0–0–0 (12.Rb1 Nb4 13.Bd7 Qd7+=) 12...Qf6 (12...a4 13.Qb1=+) 13.Bb2+= e5 (13...Qb2 14.Qb2 Bb2 15.Kb2+=) 14.Nh3 (14.Nf3 0–0+=) 14...h6 (14...Be6 15.Qa4 Bh3 16.gh3=) 15.f4+= Be6 (15...Rd8 16.fe5 Ne5 17.Rhf1+=) 16.Bc6 (16.fe5!? Qe7 17.Qa4+/–) 16...bc6= 17.Qb6 Bg4?? (17...0–0!? 18.fe5 Qe7+=) 18.fe5 (better is 18.Be5 Qe6 19.Bg7+–) 18...Qe6+/– 19.Nf4 Qc4 20.Kb1 Bd1= 21.Rd1 0–0 22.d3 Qb5 23.Qd4?? Rab8 24.a4 Qb7 25.Kc1 Rfd8 26.Qc3–/+ Re8 27.d4 g5 28.Nh5 Bh8 29.Qa3 Red8=+ 30.Nf6 Kg7?? 31.e4 Kg6= 32.Ng4 Bg7 33.d5 cd5–/+ 34.ed5 Rd5 35.Rd5 Qd5 36.Qd3 Qd3 37.cd3 Rd8 38.d4 Rc8–/+ 39.Kd1 Rc4 40.g3 Ra4 41.h4 gh4 42.gh4 Rb4 43.Bc3 Ra4?? 44.Ne3?? Ra3 45.Kd2 a4 46.d5–+ Rb3 47.d6 Rb7 48.Nd5 h5 49.Ke3 Bh6 50.Ke4–/+ a3 51.Nf6 Bf8 52.Kf4? a2–+ 53.d7 Be7 54.e6 fe6 55.Ke5 Kf7 56.Nh5 Rd7 57.Nf4 Bh4 58.Ng2 Bf6 59.Kf4 Bc3 60.Kg5 a1Q 61.Nh4 Bf6 62.Kh5 Qd1 (63.Nf3 Qf3 64.Kh6 Qh1#) 0–1. Jolilein – MichaelKnopf, mySchach.de, 2005.

3.b6 c6 4.Nc3 –/+.

3.e3 e5 (--> 1.b4 e5 2.b5 d5 3.e3 a6).

3.e4 de4 4.Qe2 ab5 5.Qe4 Nf6 6.Qe3 b4 7.Bb2 Qd5 8.Bf6 gf6 9.Ne2 Ra2 10.Ra2 (10.Nf4 Qa5 (10...Ra1 11.Nd5 Rb1 12.Ke2+/–) 11.Ra2 Qa2–+) 10...Qa2 11.Qb3 Qb3 12.cb3 Bf5 13.Nd4? (13.d3–+) 13...Bb1 14.Nb5 (14.Bb5 c6 15.Ke2 Bg6–+) 14...c6 15.Nd4 e5 16.Nf3 Bc2 17.Bc4 (17.d4 Bb3 18.de5 fe5 19.Ne5 Rg8–+) 17...b5 18.Be2 Bb3 19.0–0 (19.d4 Rg8 20.Rg1 Bd6–+) 19...Bc4 20.d3 Bd5 (20...Ba2 21.Nd2 Bh6 22.Ne4–+) 21.Ra1 (21.Nd2 c5–+) 21...Rg8 22.Ra8 (22.Nh4 b3 23.Bf3 Be6–+) 22...Bd6 23.g3 b3 24.Nd2 b2 25.Nb1 b4 26.h3 (26.Kf1 f5–+) 26...c5 27.Bg4 (27.Ra7–+) 27…Ba8 (28.Bd1 e4 29.Ba4 Bc6–+) 0–1. pinecrest1981 – WizardNo1, Live Game Caissa's Web, 2004.

3.ba6 Ra6

4.e3 Ra5 =.

4.e3 Ra8 5.Nf3 c5 6.Bb2 Qb6 7.Be5 Nc6 8.Nc3 e6 9.Rb1 Qd8 10.Bb5 Bd7 11.0–0 Ne5 12.Ne5 Bb5 13.Rb5 b6 14.f4 Qc7 15.Qb1 Ra6 16.a4 Nf6? (better is 16...Ne7!?=) 17.a5+/– Bd6 (17...ba5?? 18.Rb8 Ke7 19.Rb7+–) 18.Rb6 Rb6 19.ab6 Qb7 20.Qb5 Kd8? (20...Nd7 21.Ra1 Be5+–) 21.Nc6 Kc8 22.Na5 1–0. Tiedemann,Joern (2125) – Daniel,Achim (1890), RS–Pyramide remoteschach.de, 2007.

4.e3 e6 5.Ba6+/– Na6 6.Bb2 Qd6 7.Nf3 Qb6 8.Qc1 Nf6 9.0–0 Bd7 10.a4 Nb4 11.Ne5 Qc5 12.c3 Nc6 13.Ba3 Qb6 14.Bf8 Rf8 15.a5! Qb5 (15...Na5 16.d3 Decoy) 16.Na3 Qa5 (better is 16...Qa6 17.Nc6 Bc6+–) 17.Nac4 (17.Nd7?! Kd7 18.Qb2 Qb6+–) 17...Qb5 18.Ra8 Ke7 (18...Nd8 19.Qa3 dc4 20.Rd8 Kd8 21.Qf8 Ne8 22.Nf7 Kc8+–) 19.Qa3 Nb4 20.Ra5 (20.Ra5 Ra8 21.Ra8 dc4 22.Ra5 Qa5 23.Qa5+– (23.Qb4?! Qb4 24.cb4 Nd5+=); 20.Qb4 Qb4 21.Rf8 Qb3 22.Rf7 Ke8=; 20.cb4?! Ra8 21.Qa8 dc4+/–) 1–0. Taulien,Hans_Juergen (2350) – Kulse,Philipp (2000), remoteschach.de, 2002.

4.e4 de4 5.Ba6= ba6 6.Ne2 c5 7.Bb2 Bb7 8.0–0 e6 9.Ng3 Qg5 10.Qh5 (10.Qe2!?+/–) 10...Qd2?? (better is 10...Qh5 11.Nh5 f6+=) 11.Nd2+– (11...Bd5 12.Nge4+–) 1–0. MasterofDisaster – NOAH1, Live Game Caissa's Web, 2004.

4.e4 Re6!? –/+.

3.ba6 Na6

4.Ba3 c5 5.e3 e6 6.Bb5 Bd7 7.Qe2 Bb5 8.Qb5 Qd7 9.Qd7 Kd7 10.Ne2 Nf6 11.0–0 b5 12.Bb2 Nb4 13.Na3 Kc6 14.Bf6 gf6 15.c3 Nd3 16.Nc2 b4 17.cb4 cb4 18.Ned4 Kd7 19.Rfb1 Be7 (better is 19...e5!? 20.Nf5 Rc8–/+) 20.Rb3+= Rhb8? (better is 20...Ne5+=) 21.Rd3+– Bc5 22.Nb3 Bd6 23.e4 (23.f4 Rc8 24.Ncd4 Ra6+–) 23...Be5 (23...de4 24.Rh3+–) 24.Ncd4 (better is 24.Rc1!? Ra2 25.ed5+–) 24...de4+/– 25.Nc5 (better is 25.Re3 f5 26.Rh3+/–) 25...Ke8=+ 26.Ne4 Rd8 27.Nc6? (better is 27.g4 Bd4 28.Rb1=+) 27...Rd3–+ (27...Ba1?! 28.Rd8 Rd8 29.Nd8 Kd8 30.Nc5=+) 28.Ne5? (28.Re1–+) 28...fe5 29.Nf6 Ke7 30.Nh7 (30.Ne4 f5 31.Nc5 Rd2–+) 30...Rd2 31.Ng5 (31.h3 b3! 32.Kh2 b2–+) 31...Raa2 32.Rf1 b3 33.Ne4 (33.Nf3 Rd5 34.Ne5 Re5 35.h3–+) 33...Rdc2 34.Rb1 b2 35.Rb2 Ra1 (36.Rb1 Rb1; 35...Rc1) 0–1. MasterofDisaster – yuriy15, Live Game Caissa's Web, 2004.

4.Bb2 e6 5.e3 Nf6 6.f4 Bc5 7.Nf3 Ne4 (better is 7...0–0!?+=) 8.Bg7+= Rg8 9.Bb2 b6. Taulien,Hans_Juergen (2350) – Zepinic,Filip (1880), remoteschach.de, 2003.

4.Bb2 e6 5.Nf3 Nf6 6.e3 b6 7.Ne5 c5 (7...Bd7!?=) 8.Bb5+= Bd7 9.Nd7 Nd7 10.0–0 Nc7 11.Bc6 Ra7 12.d3 Qe7 13.Be5 f6 14.Bg3 (14.Bc7 Rc7 15.Bb5 Qf7+=) 14...e5 15.c4 Qd6 16.cd5 Nd5 17.Bd5 Qd5 18.Nc3 Qf7 19.a4 Be7 20.Nb5 Rb7 (20...Ra5 21.f4 0–0 22.fe5+/–) 21.f4 (21.Qf3 Rb8 22.Nc7 Kd8+–) 21...ef4 (21...Qd5!?+/–) 22.Qf3 Rb8 (22...fg3!? 23.Qb7 gh2 24.Kh1 Bf8+–) 23.Bf4 (23.Qf4?! Rc8+/–) 23...0–0 24.Bb8 Rb8 25.Qf4 Rd8 26.d4 Nf8 27.Qf3 Qb3 28.Rfb1 Qd3 29.Na7 cd4 30.Nc6 White intends a5 (30.Rb6 Bc5 31.Nc6 Bb6 32.Nd8 de3–+) 30...Re8 (30...Rd7 31.ed4 Qf3 32.gf3+–) 31.Qd5 White prepares the advance a5 (31.Nd4?! Bc5 32.Rb3 Qc4+/–; 31.Ne7?! Re7 32.Qd5 Ne6 33.ed4 Qe3 34.Kh1 Qd4 35.Qd4 Nd4 36.Rb6 Re5+–) 31...Kh8 32.Qd4 Qd4 (32...Qe2 33.Rb6 Bd6 34.Rb3+– (34.Qd6?! Qe3 35.Kf1 Qe2 36.Kg1 Qe3 37.Kf1 Qe2 38.Kg1 Qe3=)) 33.ed4 (33.Nd4?! Bc5 34.Kf2 Nd7+–) 33...Bd8 (33...Bd6 34.Rb6 Ne6 35.a5+–) 34.a5 ba5 35.Rb8 (35.Na5?! Ba5 36.Ra5 h6+–) 1–0. Taulien,Hans_Juergen (2350) – Hermann,Brunner (1880), 2002.

4.Bb2 Bf5 5.e3 (5.Nf3 Nh6=) 5...e6 (5...Nb4 6.d3–/+) 6.Nf3= c6 (6...Bg4 7.Nc3=) 7.Be2 Nf6 (7...Nh6 8.0–0=) 8.Nh4 Bg6 9.0–0 Bd6 (9...Nb4 10.Ng6 hg6 11.a3=) 10.f4 Nc5 11.d3 (11.f5 ef5 12.Nf5 Bf5 13.Rf5 Qc7+=) 11...0–0 (11...Qc7 12.Bd4=) 12.Qe1 (12.Ng6 fg6 13.Nd2 Na4+=) 12...Qe7 (12...Bh5 13.Bh5 Nh5 14.Nf3+=) 13.Nd2= Na4 14.Be5 (14.Ng6 fg6 15.Be5 Bb4+=) 14...Bb4+= 15.a3 (15.Ng6 fg6 16.Bd4 b5+=) 15...Ba3 (15...Bc3 16.Rb1+=) 16.Ng6 (16.Bf6 gf6 17.f5 ef5–/+) 16...fg6+= 17.Qg3 (17.Nb3 Nd7 18.Bc7 Bb2–/+) 17...Bb4–/+ 18.Nb3 Nd7 19.Bg4 h5 (19...c5 20.Qh3 Ne5 21.fe5–/+) 20.Bf3+= Kh7 (20...Ne5 21.fe5 Kh7 22.Nd4+=) 21.d4 Bc3 22.Rab1 c5 (22...Ne5 23.fe5 c5 24.Be2–/+) 23.Kh1 (23.Bc7 Rac8 24.Be5 b5–/+) 23...c4 (23...Ne5 24.fe5 b5 25.Qh3–/+) 24.Nc1+= Ne5 25.fe5 Bd2 26.Ne2 Nc3 27.Nc3 Bc3 28.Rfd1 Ra3 29.e4 Bd4 (29...Bb4 30.Ra1 Ra1 31.Ra1+=) 30.ed5 (30.Rd4 Qc5 31.c3 Rc3=) 30...Qc5 31.de6 Be5 32.Qh4 (32.Qg5 Raf3 33.gf3 Rf3+=) 32...Raf3 33.gf3 (33.e7 R8f4 34.Qg5 Qf2–/+) 33...Rf3+= 34.Rd2 (34.Rb7?? Rf2 35.Rbd7 Qe3–+) 34...Qc6 35.Rg2 Qe6 (35...Rf4 36.Qh3–/+) 36.Qe4+= Attacks the backward pawn on g6 36...Rf4 (36...Rf4 37.Qe2 h4–/+) 0–1. Taulien,Hans_Juergen (2350) – Kruse,Raphael (2300), remoteschach.de, 2003.

4.Bb2 Nf6 5.Nf3 e6 6.e3 Bd6 7.Be2 0–0 8.c4 Qe7 (8...c6 9.Nc3–/+) 9.d4+= dc4 10.Bc4 b6 11.0–0 Bb7 12.Nbd2 Rfd8 13.Qb1 (13.a3 Nb8=) 13...c5 14.Be2 cd4 15.Bd4 Nc5 16.Nc4 Bc7 17.Nfe5 (17.Nb6? Bf3 18.Bf3 Rab8–+) 17...Nfe4 18.f3 f6 19.fe4 fe5 20.Ne5 Be5 21.Be5 Be4 22.Qb6 Qg5 23.Bg3 Qe3 24.Rf2 Rf8 25.Bf1 Rf6 26.Qb2 Nd3 27.Bd3 Bd3 (worse is 27...Qd3 28.Rf6 gf6 29.Qf6+=) ½–½. Taulien,Hans_Juergen (2350) – Mehlhorn,Uwe (2440), R.–Tobies–Gedenkturnier–A, 2003.

4.e3 Nb4 5.a3 Bf5 6.d3 Nc6 7.Bb2 e5 8.Nd2 Nf6 9.Ngf3 e4 (9...d4 10.Be2=+) 10.Nh4 (10.de4 de4 (< 10...Be4 11.Ne4 Ne4 12.Bb5+=) 11.Ng5 h6 12.Bf6 Qf6 (< 12...gf6 13.Nge4 Ba3 14.Qf3+/–) 13.Nge4 Be4 14.Ne4 Bb4 15.Ke2 Qe5=+) 10...Bg4 11.f3 ef3 12.gf3 Be6 13.e4? (better is 13.Ng2!?–/+) 13...Ne4!–+ 14.fe4?? (14.Ne4 Qh4) 14...Qh4 15.Ke2 Bc5 16.Qe1 Qg4 17.Nf3 de4 18.de4 (18.Kd1 ef3 19.h3 Qg6–+) 18...Qf4 19.Bg7 (19.Bc3 Rd8 20.Bd2 Qe4 21.Kd1 Qf3 22.Be2 Rd2 23.Qd2 Qh1 24.Qe1 Qh2 25.Kc1–+) 19...Rd8 20.Qd2 Rd2 21.Nd2 Bg4 22.Kd3 Qe3 23.Kc4 Be6 24.Kb5 Qd2 25.Kc5 (25.Bc3 Qc3 26.e5 Qa5) 25...Qa5 26.Bb5 Qb6 0–1. MasterofDisaster – WizardNo1, Live Game Caissa's Web, 2004.

4.e3 e5 5.Bb5. smurfchess (2395) – tomy (2290), net–chess.com, 2010.

4.Nf3 c5 5.e3 c4 6.Bb2 Bg4 7.d3 b5 8.a4 Nb4 (8...Qa5 9.Qd2 Qd2 10.Kd2 ba4 11.Ra4 Bf3 12.gf3 cd3 13.Bd3+=) 9.ab5 Ra1 10.Ba1 Qa5 11.Bc3 (11.dc4 Nc2 12.Ke2 Na1–/+ (worse is 12...Qa1 13.Qc2 dc4 14.Kd1+=)) 11...Qa4 12.Be2 (12.dc4 dc4 13.b6 e6+/–) 12...Bf3 13.Bf3 Nc2 (13...cd3!? 14.cd3 Qb5+=) 14.Kd2+/– cd3 15.Bd5 (15.Kd3?! Nb4 16.Bb4 Qb4 17.Bd5 Qb5 18.Bc4 Qd7 19.Kc3 e6 20.Qd7 Kd7 21.Bb5 Kc7=) 15...Qb5 16.Qf3 Nb4?? (16...Kd7 17.Qf7 Nh6 18.Qe6 Kd8+–) 17.Qf7 (17.Qf7 Kd8 18.Qf8 Qe8 19.Qe8 Ke8 20.Bb4+–) 1–0. Taulien,Hans_Juergen (2350) – Worobjew,Viktor (2010), remoteschach.de, 2004.

4.Nf3 Nf6 =+.

3.e3 ab5

4.Bb5 Bd7 5.Nc3 Bb5 6.Nb5 c6 7.Nd4 e5 8.Nb3 Nf6 9.Ne2 Bd6 10.Bb2 Na6 (10...Nbd7 11.0–0–/+) 11.0–0+= 0–0 12.c3 (12.f4 Nd7+=) 12...Re8 (12...Nc7 13.Qc2–/+) 13.d3 (13.Qc2 Qc7–/+) 13...b6 (13...Qb6 14.Qc2–/+) 14.h3 h6 (14...Qc7 15.a4–/+) 15.Qc2 Nc5 Black plans e4 (15...e4 16.de4 Re4 17.Nd2–/+) 16.Nc5 bc5 (16...Bc5 17.d4 Ba3 18.Rab1+=) 17.c4+= e4 (17...Qa5 18.a4+=) 18.Bf6 (18.d4 Nd7+=) 18...Qf6–/+ (18...gf6?! 19.Rfd1+=) 19.cd5 cd5 20.d4 (20.de4 Re4 21.Qd2 Qe5–/+) 20...cd4 (20...Rec8 21.Rfc1–/+) 21.Nd4 Be5 22.Rfd1 Bd4 (22...Rec8 23.Qb3 Ra5 24.Rd2–/+) 23.ed4 (better is 23.Rd4!? Re5 24.Rad1=) 23...Rec8 (23...Reb8 24.a4–/+) 24.Qb3+= Rc4 The isolani on d4 becomes a target 25.Qe3 (25.Rac1!? Rac8 26.Rc4 Rc4 27.Qb8 Kh7 28.Qe5 Qe5 29.de5+=) 25...Raa4–/+ 26.a3 (26.f3 Rd4 27.fe4 de4 28.Rd4 Rd4–/+ (28...Qd4?! 29.Qd4 Rd4 30.a4=)) 26...Rd4–+ 27.Rd4 Qd4?? (better is 27...Rd4 28.a4 Rd3–+) 28.Qd4= Rd4 29.a4 Rc4 30.a5 Rc7 31.a6 Ra7 32.Kf1 Kf8 33.Ke2 Ke7 (33...d4 34.f3 f5 35.fe4 fe4 36.Ra4=) 34.Ke3 Ke6 (34...Kd7 35.Kd4 Kd6 36.g4=) 35.Kd4 Kd6 36.Ra5 Ke6? (36...Kc6 37.g4=) 37.g4 (37.Kc5 Ra8 38.Kb6 d4+–) 37...g6? (37...Kd6 38.Rd5 Kc6 39.Ra5=) 38.h4 (better is 38.Kc5!?+–) 38...f5 (38...Kd6 39.Rd5 Kc7 40.Ra5+/–) 39.gf5 (39.Kc5 fg4 40.Kb6 Ra8+=) 39...gf5 40.Kc5 f4 (40...Ra8 41.Kb6 f4 42.Kb7+=) 41.Kd4 (41.Kb6 Ra8 42.Kb7 Rg8+=) 41...e3 (41...Ke7 42.Ra1 Kd6 43.Rg1=) 42.fe3+= fe3 (42...f3 43.Kd3+=) 43.Rd5 (better is 43.Ke3!? Kd6 44.Kd4+/–) 43...Ra6= 44.Re5 ½–½. mic (2135) – pushtiu (2285), net–chess.com, 2008.

4.Bb5 Bd7 5.Nc3 Bb5 6.Nb5 e5 (6...Nd7 7.Nf3=) 7.d4 (7.Nf3 Nd7+=) 7...c6+= 8.Nc3 ed4 (8...Nd7 9.Rb1 Qa5 10.Bd2+=) 9.ed4+= Bb4 10.Nge2 Ne7 (10...Nf6 11.0–0+=) 11.0–0 (11.Rb1 Na6=) 11...0–0 12.Rb1 Na6 13.Re1 (13.a3 Bc3 14.Nc3 Ra7=) 13...Re8 14.a3 Bc3 15.Nc3 Qd7 16.Bf4 (16.Na4 Nf5 17.Re5 Re5 18.de5 Qe7+=) 16...Ng6 17.Re8 Re8 18.Be3 Nh4 19.a4 (19.h3 Nf5 20.Bf4 Re7=) 19...Nf5 20.Bf4 Qe7 (20...f6 21.h3+=) 21.g4= Nh4 22.Bg3 Ng6 23.Qd2 Qd7 24.f4 (better is 24.f3!?=) 24...Qg4–/+ 25.Rb7 Nh4 26.Qd3 Nf3 27.Kf1?? (better is 27.Kf2 Ne1 28.Qd1 (28.Qa6?? Qf3 29.Kg1 Qg2) 28...Qd1 29.Nd1 Nc2 30.Rb6–/+) 27...Qh3 28.Kf2 Nh2 29.Bh2 (29.Kg1 Nf1 30.Nd5 Ne3 (30...Qg3?! 31.Qg3 Ng3 32.Ne7 Kf8 33.Nc6–+) 31.Qe3 Re3 32.Ne3 Qg3 33.Ng2 Qc3–+) 29...Qh2 30.Kf3 Re1 31.f5 (31.Rb1 Qh1 32.Kg3–+) 31...Rg1 32.Ne2 Qh3 0–1. Bestia03g – GLChess213, computer chess game, 2001.

4.Bb5 Bd7 5.Be2 =+.

4.Bb5 c6

5.Be2 b6 6.Bb2 (6.f4 Nd7=) 6...e6 7.Nf3 Nf6 8.Bf6 (8.0–0 Nbd7+=) 8...Qf6–/+ 9.c3 (9.d4 Bb4 10.c3 Bd6–/+) 9...Bd6 (9...Nd7 10.d4–/+) 10.0–0 0–0 (10...Nd7 11.d4–/+) 11.d4 Ba6 (11...Nd7 12.c4–/+) 12.a4 (12.Ba6 Ra6 13.Qe2 Ra4+=) 12...Be2 (12...Nd7 13.Nbd2–/+) 13.Qe2 Nd7 (13...e5 14.e4+=) 14.Nbd2 (14.c4 Qf5+=) 14...c5 (14...Qg6 15.e4+=) 15.e4 de4 (15...Bf4 16.ed5 ed5 17.Rfe1=) 16.Ne4= Qe7 17.Ne5 (17.Rfd1 Nf6=) 17...Ne5 (17...Be5 18.de5 Ne5 19.f4–/+) 18.de5? (better is 18.Nd6!? Ng6 19.dc5 bc5 20.Rfd1=) 18...Be5–/+ 19.Rfb1 (19.f4 Bc7–/+) 19...Bc7 20.Qf3 (20.g3 Rfd8–/+) 20...f5 21.Ng3 Rf6?? (21...Rfd8 22.Qe2 g6 23.f4–+) 22.Re1 (better is 22.Qa8 Rf8 23.Qc6+–) 22...Raf8 23.Nh5 (23.Rad1!?–/+) 23...Rh6–+ 24.Nf4? (24.Ng3 Qh4 25.h3 Qc4–/+) 24...Qh4 (better is 24...g5 25.Ne2 Bh2 26.Kf1 g4–+) 25.h3?? (better is 25.Nh3–+) 25...Qf4 26.Qf4 Bf4 27.a5 (27.Rad1 Bc7–+) 27...ba5 (better is 27...Bd2 28.ab6 Bc3 29.b7 Ba1 30.Ra1–+) 28.Ra5 Bd2 (28...Bd6 29.Ra7–+) 29.Re2 (29.Rd1 Bc3 30.Rc5 Bf6–+) 29...Bc3 30.Rc5 Bd4 31.Rc7 e5 32.Kh1 (32.Kf1 Rd8–+) 32...Ra6 33.Kh2 (33.g3 Rfa8–+) 33...e4 34.Rd7 h6 (better is 34...Be5 35.g3 Rfa8–+) 35.Rd4+= Ra5 (35...Ra3 36.Rd6+=) 36.g3 (36.f3 ef3 37.gf3 f4+=) 36...Rfa8 (36...Ra3 37.Kg2+=) 37.g4 Ra2 38.Ra2 Ra2 39.Kg1 fg4 (39...Ra3 40.gf5 Rh3 41.f6+=) 40.hg4= Ra1 41.Kg2 Re1 42.Rd2 (42.Ra4 Kf7=) 42...Kf7+= 43.Kg3 (43.Rd6 e3 44.Rd3 ef2 45.Kf2 Re6+=) 43...g5 (43...Ke6 44.Ra2+=) 44.Rd7 (44.Rd6 Rg1 45.Kh2 Rg4 46.Rh6 Ke7=) 44...Ke6+= 45.Rh7 Rh1 (45...Rg1 46.Kh2 Rg4 47.Rh6 Kd5 48.Ra6+=) 46.Kg2= Rh4 (46...Rc1 47.Rh6 Ke5 48.Rh7=) 47.Kg3 Ke5 (47...Kf6 48.Ra7=) 48.Re7 Kd4 49.Rd7 Ke5 50.Re7 Kd4 51.Rd7 Kc5 52.Rd2 (52.Rd1 Kc4=) 52...Rh1+= 53.Re2 Kd5 (53...Kd4 54.Ra2+=) 54.Kg2 Rh4 (54...Rd1 55.f3+=) 55.Kg3= Rh1 56.f3 (56.Kg2 Rb1+=) 56...ef3+= 57.Kf3 h5 (57...Rf1 58.Kg3+=) 58.gh5= Rh5 59.Kg4 Rh4 60.Kg5 Ra4 61.Rf2 Kd6 62.Kh6 Rh4 63.Kg5 Rh1 64.Kg6 Rg1 65.Kh6 Ke6 66.Kh5 Ke5 67.Kh4 Ke4 68.Kh3 Rg8 69.Kh2 Ke3 70.Ra2 Kf3 71.Kh1 Kf4 72.Rf2 Ke3 73.Rg2 Rh8 74.Kg1 Rf8 75.Rg3 Ke2 76.Kg2 Rf2 77.Kh3 Rf8 78.Rg2 Kf3 79.Rg3 Kf2 80.Rg2 Kf1 81.Kh2?? (better is 81.Ra2=) 81...Rh8–+ 82.Kg3 Rg8 (82...Rg8 83.Kf3 Rg2–+) 0–1. jorginho10 – CureNewOrder, Live Game Caissa's Web, 2007.

5.Be2 e5 6.Bb2 Nd7 7.f4 +=.

5.Be2 e5 6.d4 ed4 (6...Bd6 7.c4+=) 7.ed4 (7.Qd4 c5 8.Qd1 Be7+=) 7...Nf6–/+ 8.Nf3 Bd6 9.0–0 b5 (9...0–0 10.Nc3–/+) 10.Bg5 (10.Bd2 0–0–/+) 10...0–0–/+ 11.Re1 Nbd7 12.Qd3 (12.Bd3 Re8–/+) 12...Re8 13.Nbd2 (13.Qc3 Bb7–/+) 13...Ra3 14.c3 (14.Nb3 h6 15.Bh4 Qc7–/+) 14...h6–+ 15.Bf6 Nf6 (15...gf6?! 16.Nh4 Nf8 17.Qc2+=; 15...Qf6?! 16.Qc2+=) 16.Nb3 Ne4 (16...Qb6 17.Qc2–/+) 17.Qc2 Bg4 (17...b4 18.c4 Bg4–+) 18.Rab1 (18.h3 Bf5–/+) 18...b4 (18...Qf6!? 19.Nbd2 Rea8 20.Bd3 Nd2 21.Nd2 Ra2 22.Rb2–+) 19.cb4 Bb4 20.Ne5 Be1 21.Re1 Be2 22.Re2 Qa8 23.Nc6? (better is 23.f3 Nd6 24.Rd2–+) 23...Rb3! 24.Qb3 (24.ab3 Qa1 Mate attack; 24.Qb3 Qc6 Deflection (24...Qc6 Overloading)) 24...Qc6 25.Re1 (25.g3 Rc8–+) 25...Qf6 (25...Ra8 26.h3–+) 26.Qb2 Qh4 27.Rb1 (27.g3 Qf6–+) 27...Rc8 28.Re1 (28.g3 Qf6–+) 28...Rc4 29.a3 (29.Qb8 Kh7 30.Qb2 Nc3–+) 29...Ng5 (29...Qf4 30.f3 Nd6 31.Qe2–+) 30.Rd1 (30.a4 Qg4 (worse is 30...Qd4 31.Qd4 Rd4 32.Ra1–+) 31.Kh1 Rd4–+ (31...Ra4?! 32.Re8 Kh7 33.Qc2 Ne4 34.Qa4=; 31...Qd4 32.Qd4 Rd4 33.Ra1–+)) 30...Qg4 31.Qb1 (31.Qb3 Rc3 32.Qb8 Kh7 33.Qb1 g6–+) 31...Rd4 (31...Nh3 32.Kf1 Nf4 33.g3 Qe2 34.Kg1 Nh3 35.Kg2 Qf2 36.Kh3–+) 32.Qb8 (32.Rd4 Nf3 33.Kh1 Nd4 (33...Qd4?! 34.gf3 Qf2 35.Qb8 Kh7 36.Qb1 g6 37.Qd1–+) 34.Qb8 Kh7 35.Qb1 g6–+) 32...Kh7 33.Qb1 g6 34.Rd4 Qd4 35.Qc1 (35.h3 Ne4 36.Qe1 Kg7–+) 35...Ne4 36.Qe1 g5 (36...Qc5 37.h4–+) 37.g3 (37.h3 Kg6–+) 37...g4 38.Kg2 Qb2 39.a4 Qb3 (39...Kg6!? 40.a5–+) 40.Qe2 Qa4 (40...f5 41.f3 gf3 42.Qf3 Qc2 43.Kg1–+) 41.Qg4 Qc2 42.Qf4 Kg6 43.h4 (43.g4–+) 43...Qf2! 44.Qf2 Nf2 45.Kf2 (45.Kf3–+) 45...Kf5 46.Ke3 Kg4 47.Kf2 f5 48.Kg2 d4 (48...h5 49.Kf1 Kg3 50.Ke1 d4 51.Ke2 f4 52.Kd3 Kg4 53.Ke4 d3 54.Ke5 d2 55.Kd5 d1Q 56.Ke6 f3 57.Ke5 f2 58.Kf6 Qd7 59.Ke5 f1Q 60.Ke4 Qf4) 49.Kf2 d3 50.h5 d2 0–1. Bestia03g – LG2000v29a, computer chess game, 2000.

5.Be2 e5 6.Nf3 Bd6 7.0–0 Nf6 8.Bb2 Qe7 9.d4 (9.a4 0–0 10.Nc3 Na6–/+) 9...Nbd7 (9...e4 10.Nfd2–/+) 10.de5 Ne5 11.Ne5 Be5 12.Be5 Qe5 13.Nd2 0–0 14.c4 (14.Nf3 Qd6+=) 14...Rd8–/+ 15.Qb3 (better is 15.c5–/+) 15...d4 (better is 15...Qe7 16.Nf3 dc4 17.Qc4 Be6–/+) 16.Nf3+= Qe7 17.ed4 (worse is 17.Nd4 Rd4 18.ed4 Qe2–/+) 17...Bg4 (17...c5 18.Qb2 cd4 19.Nd4+=) 18.Rae1 (18.Rfe1 Ne4+=) 18...Ra3 (18...Qc7 19.Rd1+=) 19.Qb2 (19.Qb1 Be6+/–) 19...Rda8 20.Ne5?? (20.Bd3 A) 20...Ra2?? 21.Qa2 (21.Re7?! Rb2 22.Rb1 Rb1 23.Bb1 Ra7=) 21...Qd8 22.Qb2+–; B) 20...Qc7 21.Ne5 Be6+=) 20...Be2?? (better is 20...Ra2 21.Qa2 Ra2 22.Bg4 Qd6–+) 21.Re2+= Qc7 (21...Ra2 22.Qa2 Ra2 23.Ra2+=) 22.Rc2 (22.Qb1 g6+/–) 22...Ne4 (22...c5 23.Rd1+=) 23.d5 (better is 23.Re1!? f5 24.c5+/–) 23...f6= 24.Nf3 (24.Ng4 Ra2 25.Qa2 Ra2 26.Ra2 f5+=) 24...cd5 (24...Ra2 25.Qa2 Ra2 26.Ra2 cd5 27.cd5+=) 25.cd5 Qd7 26.Nd2 (26.d6 Nd6 (worse is 26...Qd6 27.Qb7 Ng5 28.Rfc1+/–) 27.Qd4 Qf5= (27...Ra2? 28.Ra2 Ra2 29.Qd5 Qf7 30.Qd6+–)) 26...Qd5 (26...Ra2 27.Qb1 Rc2 28.Qc2=) 27.Ne4 Qe4 28.h3 (28.Rfc1 Qd5=) 28...R3a5 (28...Qd5 29.Rc7=) 29.Qb3 Qd5 30.Qd5 (30.Rd1 Qb3 31.ab3 Ra1 32.Ra1 Ra1 33.Kh2 h5+=) 30...Rd5 31.Rb2 Rb8 (31...b5 32.Rfb1=) 32.Rfb1 Rd7 33.Kf1 Kf7 34.Re1 (34.a4 Kg6=) 34...Re7 (34...Rc8 35.g3=) 35.Re7 Ke7 36.Ke2 Kd6 37.Kd3 Kd5 (37...Kc6 38.Rc2 Kd6 39.a4=) 38.Ke3 (38.Rb4 Kc6=) 38...Ke5 (38...b6 39.g4=) 39.Kd2 (39.Rb4 Kd6=) 39...b5 40.Ke2 (40.Kc3 Kd6=) 40...b4 (40...Kd6 41.Kf3=) 41.Kd2 =. Van Barneveld,Dick – De Mol,Ferdinand, VCN SchaakFestival, 1999.

5.Be2 Bf5 6.Bb2 (6.Nf3 e6=) 6...Nd7 (6...f6 7.Nf3=) 7.Nf3 h6 (7...Qb6 8.Bc3=) 8.Nd4 (8.0–0 e6=) 8...Bg6 9.0–0 (9.f4 e5 10.fe5 Ne5=) 9...e5 10.Nb3 (10.Nf3 Bd6+=) 10...Ngf6+= 11.d3 (11.f4 Bd6=) 11...Bd6 12.N1d2 0–0 13.g3 (13.c4 Qc7+=) 13...b5 (13...Re8 14.c4–/+) 14.Bf3 (14.c4 b4+=) 14...Re8 15.e4 d4 (15...Nb6 16.ed5 Na4 17.Qb1 cd5 18.Re1–+) 16.c3 (16.Qc1 Nb6–/+) 16...c5 (16...dc3 17.Bc3 Ba3 18.Qc2–/+) 17.cd4 (17.c4 b4+=) 17...cd4 (17...ed4 18.Qc2–/+) 18.Bg2 Bh5 19.f3 (19.Qb1 Be2 20.Re1 Bg4+=) 19...g5 (19...Nb6 20.g4 Bg6 21.Bc1–/+) 20.g4 (20.Qb1 Qe7+=) 20...Bg6 21.Qe1 (21.Qb1 h5+=) 21...Kg7 22.h4 (22.Qg3 Nb6–/+) 22...Rh8 (22...Bb4 23.h5 Bh7 24.Qf2–/+) 23.h5 Bh7 24.Qe2 (24.Qg3 Nb6–/+) 24...Qb6 (24...Ra6 25.Rfc1–/+) 25.Rfc1 Rhc8 (25...Bb4 26.Nb1–/+) 26.Qd1 (26.Rc8 Rc8 27.Rc1 Ra8–/+) 26...Ne8 (26...Rc1 27.Bc1 Bb4 28.a3–/+) 27.Kh1 (27.Rc8 Rc8 28.a4 ba4 29.Ra4 Qb5+=) 27...f6 (27...Rc1 28.Nc1 Bb4 29.a3–/+) 28.Rc8 (28.a4 Rc1 29.Nc1 Bg8 30.ab5 Ra1 31.Ba1 Qb5–/+) 28...Rc8 29.Rc1 Rc1 30.Qc1 Nc7 31.Bf1 (31.Qc2 Bg8+=) 31...Bg8 32.Be2 (32.Qc2 Qb7–/+) 32...Qa6 33.Qb1 Ne6 (33...b4 34.Nf1–/+) 34.Bf1 (34.Nf1 Nf4 35.Ng3 Be6–/+) 34...Nf4 35.Kh2 (35.Bc1 Ba3–/+) 35...Kf8 (35...Bb4 36.Bc1 Qd6 37.Qc2–/+) 36.Nc1 (36.Bc1 Be6–/+) 36...Nc5 37.Kg3 (37.Ndb3 Na4–+) 37...Qa4–+ 38.Ncb3 Nb3 39.Nb3 Bb3 40.ab3 Qb3 41.Kf2 (41.Qa1 Bb4–+ (41...Nd3?! 42.Qa8 Kf7 43.Qb7 Ke8 44.Qc6 Ke7 45.Qb7 Kd8 46.Qb6 Kd7 47.Qb7 Bc7 48.Ba3–/+)) 41...Ke8 (41...Ke8 42.Qc1 Kf7–+) 0–1. mic (2120) – mpenga (2335), net–chess.com, 2008.

5.Be2 Nf6 6.Nf3 Bf5 (6...Bg4 7.Ba3=) 7.0–0 Nbd7 8.d4 (8.Nh4 Bg6 9.f4=) 8...e5 (better is 8...e6!?+=) 9.de5+/– Ne4 10.Bd3 (10.Nd4 Bg6+/–) 10...Be7 (10...Qe7 11.Bb2+=) 11.Be4 (11.Nd4!? Bg6 12.f4+/–) 11...Be4= 12.Nc3 (12.Nbd2!?=) 12...Bf3+= 13.Qf3 Ne5 14.Qg3 Bf6 (14...Nc4 15.e4 0–0=) 15.a4 (15.e4 d4 16.Nd1 0–0+=) 15...0–0 (15...Nc4 16.e4 d4 17.Nb1–/+) 16.Rb1 (16.e4 Nc4 17.Rb1 Qa5–/+) 16...b6 (16...Qe7 17.Bd2–/+) 17.Ne2 (17.e4!?–/+) 17...Ra4 18.Nf4 (18.Nd4 c5 19.Nb5 Re8–+) 18...b5 (18...Nc4 19.Nd3–+) 19.Nh5 Rg4 (19...Nc4 20.Re1–+) 20.Nf6 (better is 20.Qh3!? Rg6 21.Bb2–/+) 20...Qf6–+ 21.Qh3 Nf3 22.Kh1 Nh2! 23.Qf3?? (23.Kh2 Rh4 Combination; 23.Qh2 Rh4 Pinning (23...Rh4 Decoy)) 23...Nf3 0–1. blackburne – katabla, ChessWorld.net, 2011.

3.e3 Nf6

4.Bb2 ab5 5.Bb5 c6 6.Be2 g6 7.Nf3 Bg7 8.0–0 0–0 9.c4 Bf5 (9...Nbd7 10.cd5 Nd5 11.Bg7 Kg7 12.Qc2+=) 10.Qb3 (10.Nd4!?=) 10...Nbd7–/+ 11.d4 dc4 12.Bc4 Nb6 13.Nbd2 Nc4 14.Qc4 Be6 15.Qc2 Ba2 (15...Qa5 16.a4–/+) 16.e4 Be6 (16...Qb6 17.Bc3 Qa7 18.Ne5+=) 17.Ng5 Bd7 18.Qb3 h6 19.Ngf3 Be6 20.Qb4 (20.Ra8 Qa8 21.Qb4 Re8+=) 20...Qd6 (20...Qc7 21.Ne5–/+) 21.Qc3 (21.Ba3!? Qb4 22.Bb4+=) 21...Qc7 22.d5 Ra1 23.Ra1 Ne8 24.Qb3 Bb2 25.Qb2 cd5 26.Rc1 Qb8 27.ed5 (27.e5!?–/+) 27...Bd5 28.Qd4 Qd6 29.Re1 (29.Ne4!? Qf4 30.Nf6 Qf6 31.Qd5–+) 29...Bf3–+ 30.Nf3 Qd4 31.Nd4 e6 32.Nb5 Nf6 33.Rc1 Nd5 34.Nd6 Rb8 35.Rb1 b6 36.Kf1 Kf8 37.g3 Ke7 38.Nb5 Ra8 39.Kg2 Ra4 40.Rd1 (40.Rb2 Rb4 41.Rb4 Nb4–+) 40...Ra2 41.Kf3 h5 42.h4 Rb2 43.Nd4 b5 44.Rc1 (44.Nc6 Kf6–+) 44...b4 45.Nc6 Kf6 46.Nd4 (46.Na5–+) 46...Rd2 (46...Rd2 47.Nb5 b3–+) 0–1. Kostyryachenko,Alexandr (1650) – Izbosarov,Marat (1980), Saratov RUS, Summer Cup, 2012.

4.Bb2 Bd7 =.

4.d4 ab5 5.Bb5 Bd7 =+.

4.d4 c6 5.a4 (5.ba6 Na6 6.Nf3 Bf5+=) 5...e6 (5...ab5 6.Nc3–/+) 6.Nd2 (6.ba6 Na6 7.Nf3 Ne4+=) 6...Bd6 (6...ab5 7.c3–/+) 7.Ngf3 (7.ba6 b6+=) 7...Nbd7 (7...ab5!? 8.c3 0–0–/+) 8.c4 (8.bc6 bc6 9.Ba3 c5=) 8...cb5 (better is 8...ab5!? 9.cb5 c5+=) 9.c5 Bb8 (9...Be7 10.ab5 0–0 11.Bd3+=) 10.ab5 0–0 11.Bb2 (11.Bd3 e5 12.c6 e4 13.cd7 Bd7 14.ba6 ba6 15.Ra6 Ra6 16.Ba6 Qa5=) 11...Re8 12.Ne5 (12.Bd3!?+=) 12...Ne5+= 13.de5 Nd7 14.Rc1 (14.ba6 ba6 15.Bd3 Qc7+= (worse is 15...Be5 16.Be5 Ne5 17.Bh7 Kf8 18.Bc2+=; worse is 15...Ne5 16.Bh7 Kh7 17.Qh5 Kg8 18.Be5+=)) 14...Ne5 15.Nf3 (15.f4 Ng6+=) 15...Ng6 (15...Nf3 16.Qf3 ab5 17.Bc3–/+) 16.Be2 (16.ba6 ba6 17.Qa4 Bc7–/+) 16...e5 (16...ab5 17.0–0–/+) 17.0–0 (17.ba6 ba6 18.Qd2 e4–/+) 17...Bg4 (17...e4 18.Nd4+=) 18.h3 Bf3 (18...Bf5 19.ba6 ba6 20.Qa4+=) 19.Bf3 e4 20.Bg4 (20.Be2 Qc7 21.g3 ab5 22.Qd5 Qc6=) 20...Ne5 (20...ab5 21.f4 ef3 22.Bf3–/+) 21.Be2+= Qc7 Do you see the mate threat? 22.g3 Rd8 23.Qd4 (23.Qa4 Qd7 24.c6 bc6 25.bc6 Qh3–/+) 23...f6 (23...ab5 24.Ra1 Ra6 25.Kg2–/+) 24.Rfd1 (24.ba6 ba6 25.Rfd1 Qc6–/+) 24...Qd7 (24...ab5 25.Qb4–/+) 25.Kg2 (better is 25.ba6 ba6 26.Kg2+=) 25...Nf3?? (25...ab5 26.Qb4–/+) 26.Bf3?? (better is 26.Qd5! Qd5 27.Rd5+/–) 26...ef3–/+ 27.Kf3 Qh3 (27...Be5 28.Qd2 Qh3 29.c6 bc6 30.bc6–/+) 28.Qg4 (28.ba6!? Ra6 29.Qg4 Qg4 30.Kg4+=) 28...Qg4–/+ 29.Kg4 Kf7 (29...ab5!? 30.Rb1 Ra2–/+) 30.Rh1 (30.e4 ab5 31.Rd5 Rd5 32.ed5 Ra2+=) 30...h6 (30...ab5 31.Rh7 Kg6+=) 31.Rhd1 (31.c6 bc6 32.bc6 Bc7+=) 31...Ke6 (31...ab5 32.Rb1–/+) 32.f4 (better is 32.c6 bc6 33.bc6+=) 32...Rd7 (32...ab5 33.e4 g6 34.ed5 Rd5 35.Rd5 Kd5 36.Bf6–/+) 33.b6 (better is 33.f5!? Kf7 34.e4 ab5 35.ed5=) 33...g6+= 34.Rh1 (34.Ba3 a5+=) 34...h5–/+ 35.Kf3 0–1. Struwecker,Sigurd (1690) – Schwarzat,Julian, It Open Hamburg, 2005.

2.b5 b6

3.Na3 e5=+ 4.Rb1 (4.Bb2 a6=+) 4...Nf6 (4...a6 5.Nf3=+) 5.d4 (5.Nf3 Bd6=+) 5...ed4 (5...Ne4 6.Qd3 a5 7.c3–/+) 6.Qd4 Bc5 7.Qe5 Be6 8.Rb3? (8.e3 Qe7 9.Qc3 d4 10.ed4 Ba2 11.Ne2 Ne4–/+) 8...Nbd7 (better is 8...Bf2!? 9.Kd1 Nbd7–+) 9.Qf4–/+ Ne4 10.Nh3 Bh3–+ 11.gh3 Nf2?? 12.Rf3=+ 0–0 13.Bg2?? Nh1–+ 14.Bh1 a5 15.Bd2 Qe7 16.h4 Ba3 17.h5 Bd6 18.h6 Bf4 19.Bf4 Rfe8 20.Rf2 Qb4 21.Kf1 Qb1 22.Kg2 Qc2 23.e3 Qg6 24.Kf1 Nc5 25.Bd5 Rad8 26.Rg2 Qb1 27.Kf2 Nd3 28.Kf3 Ne1 29.Kf2 Ng2 30.Bg2 Qc2 31.Kg3 Qg6 32.Kf3 gh6 33.Bc7 Qf5 34.Ke2 Qb5 35.Kf2 Rd2 36.Kg3 Re3 37.Kf4 Qg5# 0–1. Jolilein – dsa4@, mySchach.de, 2005.

3.Bb2 Bd7 4.a4 a6 5.e3 g5?? (better is 5...Nf6=) 6.Bh8+– h5 (6...Nf6 7.Nc3+–) 7.Qh5 Nf6 8.Qg5 Bf5 (8...ab5 9.Bf6 ef6 10.Qd5 Ra5+–) 9.Qf5 c6 (9...Ne4 10.Nc3 e6 11.Qg4+–) 10.bc6 Nc6 11.Nc3 b5 12.Bf6 ef6 13.Nd5 ba4 14.Nf6 Qf6 15.Qf6 Be7 16.Qc6 Kf8 17.Qa8 Kg7 18.Bc4 Bf6 19.Qb7 Ba1 (19...Bd4 20.Qf7 Kh6 21.Bd3 Kg5 22.Nf3 Kh6 23.Qg6) 20.Qf7 Kh6 21.Bd3 Kg5 22.Nf3 Kg4 (22...Kh6 23.Qg6) 23.h3 1–0. Taulien,Hans_Juergen (2350) – Elsner,David (1680), remoteschach.de, 2002.

3.Bb2 e5 4.Be5+= Qg5? (better is 4...Nd7 5.Bd4 Ngf6+=) 5.Bc7 Nd7 6.Nf3 (6.e3 Bb7+–) 6...Qf6 7.c3 (7.Nc3!? Bb7+–) 7...Bb7 (7...Bd6 8.Bd6 Qd6 9.d4+/–) 8.e3 h6 (8...Ne7 9.Na3+/–) 9.Be2+– g5 (9...Bd6 10.Bd6 Qd6+–) 10.0–0 (10.Nd4 Nc5+–) 10...Rc8 (10...Bd6 11.Bd6 Qd6 12.Qc2+–) 11.Bg3 Bd6 (11...Ne7 12.Nd4 Nf5 13.Bg4 Ng3 14.fg3+– (worse is 14.hg3 h5 15.Bf5 Rc7+–)) 12.a4 (12.Nd4 Ne7+–) 12...Bg3 (12...Ne7 13.Nd4+–) 13.fg3 Ne7 (13...Qd8 14.Nd4+–) 14.Nd4 Qd6 15.Bg4 0–0 (15...Rc7 16.Bd7 Rd7 17.Na3+–) 16.Na3 a6 (16...Rc7+–) 17.ba6 Ba6 18.Nab5 Bb5 19.Nb5 (19.Nb5 Qc6 20.Na7+–; worse is 19.ab5 Rc7+–) 1–0. Taulien,Hans_Juergen (2350) – Dannies,Kai (1895), remoteschach.de, 2002.

3.Bb2 e6 (-->1.b4 d5 2.Bb2 e6 3.b5 b6).

3.Bb2 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.b5 b6).

3.e3 Bb7 4.g3 Nf6 5.Bg2 e5 6.Nc3 Nbd7 7.Bb2 Bb4 8.Nd5? (better is 8.a3 Bc3 9.Bc3+=) 8...Nd5–+ 9.Bd5 (9.Nf3–+) 9...Bd5 10.Qg4 (10.f3 a6 11.Qe2 Bb7–+) 10...Bh1 11.Qg7 (11.Qb4 a6–+) 11...Qf6 (better is 11...Rf8 12.Be5 Bd2 13.Ke2–+) 12.Be5 (12.Qf6 Nf6 13.Be5–+) 12...Qe5 13.c3 (13.c3 Qg7 14.Ne2–+). georginoh (1715) – paull (1730), net–chess.com, 2013.

3.e3 Nf6 4.a4. mic (2100) – ismgr (2145), net–chess.com, 2008.

3.Nf3 a6 4.e3 ab5 5.Bb5 Bd7 6.Be2 Nf6 7.Bb2 e6 8.0–0 Bd6 9.Be5 0–0 10.d4 Ne4 11.Bd6 Nd6 12.Nbd2 c5 13.dc5 bc5 14.c4 Ba4 15.Qc1 Nd7 16.Qc3 Qe7 17.Rfb1 Rfc8 18.Rb2 Bc6 19.Rab1 Ra4 (19...e5 20.cd5 Bd5 21.a3+=) 20.Bd1 (20.Qc2 Rb4=) 20...Ra7 21.Bb3 Rca8 (21...dc4 22.Bc4 e5 23.Ne1=) 22.cd5 (22.Ne1 Rb8=) 22...ed5+= 23.Qc1 Qf6 24.Nd4 cd4 25.Qc6 Ne5 26.Qb6 (26.Qd5 Nd3 27.Qf3 Qf3 28.Nf3 Nb2 29.Rb2 Rc8–/+) 26...Nd3 27.Bd5 Qf2 28.Kh1 Nb2 29.Ba8 Ra8 30.Qd4 Re8 (30...Nbc4 31.Nc4 Qa2 32.Nd2=) 31.Qd6= Qe3 32.h3 Na4 (32...Qc3 33.Nf3=) 33.Nc4 Qe2 34.Rb8 g6 35.Re8 Qe8 36.a3 Qe1 37.Kh2 Qe4 38.Qb8 (38.Na5 h6+=) 38...Kg7= 39.Qe5 Qe5 40.Ne5 Kf6 41.Nd3 Kf5 42.Kg3 Ke4 43.Nf2 Kd4 44.Kf4 Nc5 (44...Nc3 45.Kg5=) 45.Kg5+= f5 46.Kh6 g5 (better is 46...Ne4!? 47.Nd1 Nf6+=) 47.Kg5 Ne4 48.Kf5 Nf2 49.Kg5 Nd3 50.h4 Ne1 51.g3 Nc2 52.Kh6 (52.a4 Ne3+/–) 52...Ne3 53.Kh7 Nf5 54.Kg6 Ng3 55.Kg5 Ne4 (55...Kc4 56.Kf4 Nh5 57.Kg4+/–) 56.Kf5 Ng3 57.Kf4 Nh5 58.Kg5 Ng3 59.Kg4 Ne4 60.Kf4 Nf6 61.Kf5 Ne4 (61...Nh5!? 62.a4 Kc4+/–) 62.a4 Ng3 63.Kg4 Ne4 64.Kf4 Nf6 65.Kf5 Nh5 66.a5 Kc5 67.Kg5 Ng3 68.Kg4 Ne4 69.Kf4 Nf6 70.a6 (70.Kg5 Ne4 71.Kf5 Ng3 72.Ke5+/–) 70...Kb6+= 71.Kf5 Nd5? (better is 71...Nh5!?+/–) 72.h5+– Ne7 73.Kf6 Ng8 74.Kg7 Ne7 75.Kf7 Nf5 76.Kf6 Nh6 77.Kg6 Ng8 78.a7 Ka7 79.Kg7 Ne7 80.Kf7 Nf5 81.Kf6 (81.Kg6 Ne7 82.Kf6 Ng8 83.Kf7 Nh6 84.Kg7 Ng4+/–) 81...Nh6 82.Kg5 Ng8 83.Kg6 Ne7 84.Kf6 Ng8 85.Ke6 Nh6 86.Ke5 Ng4 (86...Kb6 87.Kf4+/–) 87.Kf4 (87.Kf5 Nh6 88.Kf4 Kb6+=) 87...Nh6 88.Kg3 Ng8 89.Kf3 Nf6? (better is 89...Kb6!?+=) 90.h6+/– Nh7 91.Ke4 Nf8 92.Ke5 Kb6 93.Kf6 Kc5 94.Kf7 Nh7 95.Kg7 Ng5 96.Kg6 (96.Kf6 Nh7 97.Kg6 Nf8 98.Kg7 Ne6 99.Kf7 Kd6+=) 96...Ne6 97.Kh5 (97.Kf7 Ng5 98.Kf6 Nh7 99.Kg6 Nf8 100.Kg7 Ne6 101.Kh8=) 97...Nf8= 98.Kg4 Nd7 (98...Kd6 99.Kf5+=) 99.Kf5 Nf8 100.Kf6 (100.Ke4 Kd6=) 100...Nh7 (100...Kd6 101.Kf7 Nh7 102.Kg7=) 101.Ke5 (101.Kg6 Nf8 102.Kg7 Ne6 103.Kf7 Ng5 104.Kg8=) 101...Ng5 (better is 101...Nf8!?=) 102.Kf5+/– ½–½. bambinik – PolarChess, internet, 2002.

3.Bb2 a6!?

4.a4 ab5 5.ab5 Ra1 6.Ba1 Nf6 7.e3 Bd7 (7...Nbd7 8.Nf3+=) 8.Bf6 (8.Nf3 Bg4+=) 8...ef6 9.c4 (9.Nc3 Be6=) 9...dc4 (9...Be6 10.Ne2=) 10.Bc4+= Be6 (10...Bd6 11.Nc3+=) 11.Qb3 Bc4 (11...Qd6 12.Nc3+=) 12.Qc4+/– Bc5 (12...Nd7 13.d4+=) 13.d4 Bd6 14.Nf3 Nd7 15.Nc3 0–0 16.0–0 Re8 (16...f5 17.Rd1+/–) 17.Ra1 (17.Nd5 Nf8+/–) 17...Qe7 (17...f5 18.h3+/–) 18.Ra7 (better is 18.g3+/–) 18...Bb4? (better is 18...Qe6!? 19.Nd5 Qf5+/–) 19.Qc7 (19.Rc7 Bc3 20.Qc3 Qe6+–) 19...Bc3 20.Qc3 Rd8 21.h3 (21.Qc7 Qe8 22.Nd2 Qf8+–) 21...Qe6 (21...Qe8 22.Qc7+–) 22.Qc7 Qe7 (22...Qe8 23.Nd2+–) 23.Qb6! Nb6 24.Re7 Rb8 (24...Nd7+–) 25.Rc7 h6 26.Nd2 Nd5 (26...Na4 27.Ne4 Rb5 28.Nd6+–) 27.Rc5 Nb4 (27...Nb6 28.Ne4+–) 28.d5 (28.Ne4!? Kf8+–) 28...Nd3 29.Rc3 Nb4 (29...Ne5 30.Rb3 Kf8 31.b6+–) 30.d6 Rd8 (30...Kf8 31.Rc4 Nd3+–) 31.Nc4 Nd5 (31...Kf8+–) 32.Rd3 Nb4 33.Rd2 Kf8 (33...Rd7 34.Na5 Kf8 35.Nc6+–) 34.Na5 Ke8 (34...Rd7 35.Kh2 Nc2 36.Nc6+–) 35.Nc6 Nc6 (35...Rd7 36.Nb4 Kd8 37.Rd5+–) 36.bc6 (36.bc6 Ra8 37.Rb2+–) 1–0. Taulien,Hans_Juergen – Staats,Carsten, remoteschach.de, 2001.

4.e3 ab5 5.Bb5 c6 =.

3.Bb2 Bb7

4.e3 c6 5.a4 cb5 6.ab5 e6 7.Nf3 Nf6 8.c4 dc4 9.Bc4 Bd5 (9...Bd6 10.Qe2=) 10.Bb3 (10.Bf6 Qf6 11.Bd5 ed5+/–) 10...Be7 11.Nc3 Bb3 12.Qb3 0–0 13.0–0 Nbd7 14.d4 Nd5? (better is 14...Nb8!?+=) 15.Nd5+– ed5 16.Qd5 Nf6 17.Qd8 Rfd8 18.Ne5 Bd6 19.Nc6 Rdc8 20.Ra7 Ra7 21.Na7 Rc2 22.Rb1 Ne4 23.Bc1?? Nc3–/+ 24.Ra1 Ne2 25.Kf1 Rc1 26.Rc1 Nc1 27.Ke1 Nd3 28.Ke2=+ Nb4 29.g3 f5 30.Nc8= Bc7 31.Ne7 Kf7 32.Nf5 Kf6 33.Nh4 g5 34.Nf3 h5 35.Nd2 Nd5 36.Ne4 Kf5 37.f3 Bb8 38.Kd3 Nc7 39.Nd6 Ke6+= 40.Nc4 Ba7 41.e4 Nb5 42.d5 Ke7 43.e5 h4 44.gh4 gh4 45.h3 Bb8 46.Ke4 Nc3= 47.Kd4 Ne2 48.Ke4 Ng1 49.Nb6 Nh3= 50.d6 Kd8 51.f4 Ng1 52.Ke3?? h3?? 53.Kf2= Ba7 54.Kg1+= Bb6 55.Kh2 Be3 56.Kh3 Bf4 57.Kg4 Be5 58.Kf5 Bd6 ½–½. weisstra – kdfoerster, caissa.com, 2007.

4.e3 f6 5.f4 e6 6.Qf3 Be7 7.c4 Qd6 8.Ba3 c5 9.bc6 Qc6 10.Qg4 g6 (10...dc4?? 11.Qg7 Qe4 12.Be7 Ne7 13.Qh8 Kf7 14.Nc3+–) 11.Be2 (11.cd5 Qd5 12.Nc3 Qd7 13.Be7 Ne7=) 11...Nh6 (better is 11...dc4!? 12.Bf3 Qc8–/+) 12.Qh3 Nf5 (better is 12...Ba3 13.Na3 Nf5 14.cd5 Qd5= (< 14...ed5 15.Bb5+–)) 13.Bf3 (13.cd5!? Qd5 14.Bf3=) 13...Ba3 (better is 13...Qc4 14.Be2 Qc7–/+) 14.cd5?? (better is 14.Na3!? Qc5 15.Nb5=+) 14...ed5 (better is 14...Qc1 15.Kf2 Bb2–+ (15...ed5 16.g4 Ne3 17.Ne2 Nd1 18.Kg2–+; < 15...Bd5 16.g4 Bb2 17.Bd5 ed5 18.gf5–+)) 15.Na3 0–0 (15...Qc5 16.g4 Ne7–+ (16...Qa3 17.gf5 Qf8 18.Ne2+=)) 16.Ne2= Qd6 17.Nc2 Na6 18.Ncd4 Nd4 19.Nd4 (< 19.ed4 Nb4 20.0–0 Rae8=+) 19...Rfe8 20.0–0 Rac8 21.Nb5 Ra8?? (better is 21...Qe7+/–) 22.Nd6+– (22...f5 23.Nb7+–) 1–0. MasterofDisaster – tfjv, Live Game Caissa's Web, 2004.

4.f3 Nd7 5.f4 a6 =+.

4.f3 Nd7 5.g3 e5 6.d3 (6.d4 ed4 7.Bd4 a6–/+) 6...Bd6 (6...a6 7.ba6 Ra6 8.e3–/+) 7.Nd2 (7.e4 c6–/+) 7...Ngf6 (7...a6 8.a4–/+) 8.e3 (8.e4 c6–/+) 8...0–0 9.Bg2 c5 (9...a6!?–/+) 10.Ne2 Qc7 11.0–0 a6 12.c4 ab5 13.cb5 d4 14.e4 h6 (14...Ne8 15.f4=+) 15.a3 Nh7 16.Rc1 f5 17.Nc4 f4 18.g4 (18.gf4!? ef4 19.Bh3= (< 19.Nd6 Qd6 20.Qb3 Kh8=+)) 18...Nhf6 19.h4 (19.Bh3 Kh7=+) 19...h5 (19...Nh7!?–/+) 20.g5 Nh7 21.Bh3 g6 (better is 21...Rfd8!?=) 22.Be6 Kg7 23.Kh2 (23.Bd7 Qd7 24.Nb6 Qb5 25.Na8 Ba6+=) 23...Rfe8 (better is 23...Rfd8=) 24.Nd6?? (better is 24.Bd7 Qd7 25.Nb6 Qb5 26.Na8+=) 24...Qd6 25.Qb3?? (better is 25.Bc4–/+) 25...Re6–+ 26.a4 Rc8 (26...Ree8 27.Ra1–+) 27.Ba3 (27.Ra1 Ree8–+) 27...Ree8 28.Rg1 Qe6 (better is 28...Ra8!? 29.Rc4–+) 29.Qe6 Re6 30.Rc2 (30.Rc4 Nhf8–+) 30...Ra8 31.a5 (31.Rc4–+) 31...Ra5 32.Bb2 (32.Ra1 Rb5 33.Nc1 Ra5–+) 32...Rb5 33.Ra1 Ra5 34.Ba3 (34.Ra5 ba5 35.Kg1 Rb6–+) 34...Ba6 35.Nc1 Re8 36.Rd2 Ra8 37.Nb3 Ra4 38.Kh3 (38.Bb2 Bd3 39.Ra4 Ra4 40.Rd3 c4–+) 38...c4 (38...Bd3 39.Rd3 c4 40.Rc1 cd3 41.Bd6–+) 39.dc4 (39.Nc1 Nc5 40.Kg2 c3–+) 39...Bc4 40.Nd4 (40.Bb4 Ra1 41.Na1 Ra1–+) 40...Ra3 (better is 40...ed4 41.Bb2 Ra1 42.Bd4 Kf8 43.Ba1 Ra1 44.Kg2–+) 41.Ra3 Ra3 (41...ed4?! 42.Ra8 Bf1 43.Kh2–/+) 42.Nf5 Kg8 43.Nh6 (43.Rd7 gf5 44.ef5 Ra2–+) 43...Kf8 44.Rd7 (44.Kg2 Nc5–+) 44...Rf3 (better is 44...Be6 45.Kg2 Bd7–+) 45.Kg2 Rg3 (45...Rd3 46.Rc7 Rd2 47.Kg1–+) 46.Kf2 (46.Kh2 Rc3 47.Rh7 Rc2 48.Kh1 f3 49.Rh8 Kg7–+) 46...Rh3 (better is 46...Rc3 47.Rd2 b5–+) 47.Rh7 Rh4 48.Rb7 (48.Rc7 b5–+) 48...b5 (better is 48...Rh2 49.Kg1 Rb2 50.Rc7–+) 49.Nf7 (49.Kg2 Ke8 50.Rb6–+) 49...Bf7 50.Rb5 Rg4 51.Re5 h4 52.Kf3 (52.Rc5 h3–+) 52...Rg3 (better is 52...h3 53.Kg4 h2 54.Kf4 h1Q–+) 53.Kf4 Rg1 54.Rc5 h3 55.Rc2 Be6 56.Ke5 Bb3 (56...Ke7!? 57.Kf4–+) 57.Rh2 Rg2 (better is 57...Rg5 58.Kf4 Rh5–+) 58.Rh3 Rg5?? (better is 58...Bf7–+) 59.Kf4?? (better is 59.Kf6 Rb5 60.Rh8 Bg8 61.Kg6 Rb6 62.Kf5=+) 59...Rb5–+ 60.e5 Kg7 61.Rc3 (61…Be6 62.Rc6 Rb4 63.Kg3–+) –+. MasterofDisaster – johmul, Live Game Caissa's Web, 2004.

4.Nf3 a6 =.

2.b5 c5

3.a4 b6 4.Bb2 Nf6 5.d3 Bf5 6.Nd2 e6 7.c4 d4 (7...Be7!?=) 8.Ngf3 Nbd7 9.g3 Rc8 (9...Bd6 10.Bg2+=) 10.Bg2 Be7 11.Nh4 0–0 (11...Bg4 12.h3 Bh5 13.a5+/–) 12.Nf5+/– ef5 13.Bh3 (13.0–0 Bd6+/–) 13...g6 14.Nf3 (14.0–0 Ne5+=) 14...Qc7 15.Bc1 Rfe8 16.0–0 Bd6 (16...a5 17.Bg2=) 17.Re1 (17.a5 f4+=) 17...f4 (17...a5 18.ba6 Ra8 19.Bd2+=) 18.Bf4 (18.a5 h5+=) 18...Bf4= 19.gf4 Qf4 20.Qc1 Qc1 21.Rac1 Rcd8 22.e3 (22.a5 Nh5+= (worse is 22...ba5 23.Ra1+=)) 22...de3 (22...Ne5 23.Ne5 Re5 24.ed4 Rg5 25.Kh1 Rd4 26.Re3+=) 23.fe3 (23.Re3 h6=) 23...Ne5+= 24.Ne5 Re5 25.Rcd1 Rde8 26.Kf2 Rh5 27.Kg2 Ree5 28.Bc8 Ne8 29.h3 Nd6 30.Bg4 Rhg5 31.Kg3?? (better is 31.Kf2+=) 31...h5 32.Kf4 (32.d4 cd4 (32...hg4 33.de5 gh3 34.Kh3 Nc4 35.e6 Rh5 36.Kg3 fe6 37.Rd7+=) 33.Kf4 hg4 34.hg4 Nc4 35.Rd4 Rc5 36.Rc4 Rg4 (36...Rc4?! 37.Kg5 Kg7 38.e4–/+) 37.Kg4 Rc4 38.e4 Kg7–+) 32...hg4 33.hg4 f6 34.Rh1 Re7 35.Rh3 (35.Rhg1 Kg7–+) 35...Rh7 (better is 35...Nf7!? 36.d4–+) 36.Rh7 Kh7 37.Ra1 Re5 (37...Nf7 38.d4–+) 38.a5 Nc8 (better is 38...Re7–+) 39.ab6–/+ ab6 40.Ra8 Re8 41.Rb8? (41.d4!? cd4 42.ed4–/+) 41...Kg7 (41...g5 42.Kf3 Kg6 43.Kf2–+) 42.e4? (better is 42.g5!?–/+) 42...Kf7–+ 43.Rb7 Ke6 44.Rc7 (44.g5 fg5 45.Kg5 Rd8–+) 44...g5 45.Kf3 Rd8 (45...Nd6 46.Ke3–+) 46.Ke3? (46.Rc6 Ke5 47.Ke3 Rg8–+) 46...Ke5 (better is 46...Ne7 47.Rb7 Rd6–+) 47.Rc6 Re8 48.Rc7 (48.Ke2 Rf8 49.Ke3 Rg8–+) 48...Rh8 (48...Nd6 49.Rh7–+) 49.Rc6 Rh3 50.Ke2? (better is 50.Kd2 Rh2 51.Ke3–+) 50...Kd4?? (better is 50...Ne7 51.Rb6 Ng6–+) 51.Rc8= Rh2 52.Kf3 Rh3 53.Ke2 Re3 54.Kf2 Rd3 (54...Kd3?? 55.Rd8 Ke4 56.Re8 Kd4 57.Re3 Kc4 58.Re6 Kb5 59.Rf6+–) 55.Rc6 Ke5 56.Rb6 Rd4 57.Rb8 Rc4 58.Re8 Kd6 59.Ke3 Rb4 60.Rf8 (60.Rd8 Ke6=) 60...Ke7 (60...Rb3 61.Kd2+=) 61.Rb8= Rb3 62.Ke2 c4 63.Rc8 Rb5 64.Rc4 Ke6 65.Ke3 Ke5 66.Rd4?? (better is 66.Rc3=) 66...Rb3–+ 67.Rd3 Rd3 68.Kd3 Kf4 69.Kd4 Kg4 70.e5 fe5 71.Ke5 Kf3 0–1. Isler,Benjamin – Zielke,Bernd (1695), Kiel GER, Open–B, 2014.

3.Bb2 a6 4.e3 c4 5.Nc3 Nf6 6.Nf3 Bg4 (6...ab5 7.Nb5 Nc6 8.Be2=) 7.Be2 (7.a4+=) 7...Bd7 (7...ab5!? 8.Nb5 Nc6+=) 8.a4+/– a5 (8...e6!?+/–) 9.0–0+– b6 (9...Be6 10.Nd4 Bc8 11.d3+/–) 10.Nd4 (10.Re1 Qc8+–) 10...Qc7 (10...e5 11.Nf3 e4 12.Nd4+–) 11.f4 (11.Bf3 Qb7 12.d3 cd3 13.Nd5 Nd5+–) 11...e5? (better is 11...e6!?+–) 12.fe5 Qe5 13.Nf3 (better is 13.Rf6!? gf6 14.Nd5 Qd5+–) 13...Qc7 (13...Qh5!?+/–) 14.d3+– Bc5 (14...cd3 15.Qd3 (15.Bd3?! Bb4 16.Ne2 Bc5+/–) 15...Be6 16.e4 de4 17.Ne4+/–) 15.Qd2 (15.dc4!? Be3 16.Kh1 dc4+–) 15...0–0 (15...cd3 16.cd3 0–0 17.d4+/–) 16.dc4+– dc4 17.Nd5 Nd5 18.Qd5 Be6?? (better is 18...Be3 19.Kh1 Ra7+–) 19.Qa8+– Be3 (19...c3 20.Bc1 Rd8 21.Qe4+–) 20.Kh1 c3 (20...Bf5 21.Qd5 Be6 22.Qe4+–) 21.Ba3 Rd8 (21...Re8 22.Qe4 Qf4 23.Qf4 Bf4 24.Nd4+–) 22.Rad1 Re8 (22...Bd2 23.Qe4 Bd5 24.Qh4+–) 23.Bd6 Qc8 24.Rd3 (better is 24.Nd4 Bd2 25.Qf3+–) 24...Bc4 (24...Bc5 25.Rc3 Nd7 26.Qc8 Rc8+–) 25.Rc3 g6 26.Bc4 Qd8 27.Bf7! Kf7 28.Ng5 Kg7 29.Rf7 Kh6 (29...Kg8 30.Qd5 Re6 31.Qe6 Bg5 32.Be5 Bf6 33.Re7 Kf8 34.Qf7) 30.Rh7 Kg5 31.Qd5 Kg4 (31...Re5 32.Qe5 Kg4 33.h3) 32.h3 1–0. Taulien,Hans_Juergen (2350) – Orion,Martin (1835), remoteschach.de, 2002.

3.Bb2 Qb6 4.e3 c4 (4...Nf6 5.Nf3=) 5.a4 (5.Nc3 Nf6=) 5...a6 (5...Nf6 6.Bd4 Qc7 7.f4=) 6.Nc3 (6.Bd4 Qg6=) 6...e6 (6...Nf6 7.Nf3=) 7.e4 (7.d3 ab5 8.ab5 Ra1 9.Qa1 cd3 10.Bd3 Bd6=) 7...Bc5 8.Qe2 ab5 (8...d4 9.a5 Qc7 10.b6+=) 9.Nb5 (9.ed5 ba4 10.Ra4 Na6+= (10...Qb2? 11.Ra8 Bd6 12.Qc4 Qc1 13.Ke2+–)) 9...Nf6 (9...Kf8 10.d4 cd3 11.cd3=+) 10.Bf6 (10.ed5 Nd5 11.Bg7 Rg8=) 10...gf6= 11.ed5?? (better is 11.Rb1=) 11...Bd4?? (better is 11...Qb5! 12.Qc4 Qa5–+) 12.c3 (12.Nd4 Qd4 13.c3 Qd5 14.Qc4 Qc4 15.Bc4 Bd7+/–) 12...Bc5 (better is 12...Qb5 13.cd4 Qb2=) 13.h4?? (13.Ra2 0–0 14.d4 cd3 15.Qg4 Kh8 16.Bd3 ed5+=) 13...0–0?? (better is 13...Qb5! 14.Qc4 Qc4 15.Bc4 e5–+) 14.Rh3 (better is 14.d6!? Bd7 15.Qg4 Kh8 16.Bc4 Bf2 17.Ke2 Bb5 18.Bb5+/–) 14...ed5 15.Rg3 Kh8 16.Nf3?? (better is 16.d4 Qb5!? 17.dc5 (17.ab5? Ra1 18.Kd2 Ra2 19.Ke1 Re2 20.Be2 Bd6–+) 17...Ra4 18.Ra4 Qa4 19.Qd2–/+) 16...Bd7 17.a5? Qb5 18.Qe7 Be7 (19.Rd1 Re8–+) 0–1. riverborne – manoloXIV, Live Game Caissa's Web, 2005.

3.Bb2 d4 4.e3 (4.Nf3 Nd7=) 4...e5 5.c4 (5.Qe2 Qe7=) 5...Nf6 (5...Bd6 6.Be2=+) 6.Nf3 Bg4 (6...e4 7.Ne5=+) 7.Be2 (better is 7.h3 Bf3 8.Qf3=+) 7...Be7?? (7...d3 8.Bf1 e4 9.h3–/+) 8.Qc2?? (8.Ne5!? Be2 9.Qe2 (< 9.Ke2 Qd6 10.f4 Nbd7=) 9...de3 10.Qe3+/–) 8...0–0 9.Ne5= Be2 10.Ke2 Nbd7 11.Nd7 Qd7= 12.Re1 Rad8 13.ed4+= cd4 14.d3 Bd6 15.g3?? Qh3?? 16.Nd2 Qh2 17.Rh1= Qg2 18.Rag1 Rfe8 19.Ne4! Ne4 20.Rg2 Ng3 21.Kd1 Nh1 22.Rh2?? Bh2–+ 23.f3 Bf4 24.Qg2 Ng3 25.c5 Be5 26.a4 Nf5 27.a5 g6 28.Qg5 Bg7 29.c6 Ne3 30.Kc1 White gets deadly initiative 30...bc6 31.bc6 h6 32.Qc5 Rc8 33.c7 Bf8 34.Qd4 34...Rc7 35.Kb1 Nf5 36.Qh8# 1–0. toll (1700) – DrEcho (1670), ICC, 2003.

3.Bb2 e6 4.Nf3 Nf6 5.e3 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7).

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

3.Nc3 g5 4.Ba3= e6 (4...b6 5.Bb2 Bg7 6.e3=) 5.Na4 (5.e3 Bd6=) 5...Bg7 (5...Qa5 6.c4 dc4 7.Bb2=+) 6.Nc5? (better is 6.Rb1!? c4 7.Bb2=) 6...Ba1 (7.Qa1 f6=+; 6...Qa5!? 7.Qc1 Ba1–/+) 0–1. Jolilein – Bogdan, mySchach.de, 2005.

3.c4 e6 4.e3 Nf6 5.Nf3 Be7 6.d4 0–0 7.Nbd2 Qa5 8.Bd3 (8.dc5 Rd8=) 8...Nbd7 (8...Qc3 9.Qc2 cd4–/+ (worse is 9...Qa1 10.Nb3 Qc1 11.Qc1+/–)) 9.0–0= dc4 10.Bc4 Rd8 11.Qb3 a6 (11...cd4 12.Be6 fe6 13.Qe6 Kf8 14.Ng5–/+) 12.Be6+= fe6 13.Qe6 Kf8 14.Ng5 Ne5 15.Qe5 Bd6 16.Nc4 Be5 17.Na5 cd4 18.Ba3 Kg8 19.Nc4 Bb8? (better is 19...ab5 20.Ne5 Ra3 21.ed4 Rd4+/–) 20.Nb6+– Ra7 21.Nc8 Rc8 22.Rac1 (22.b6!? Ra8 23.ed4 h6+–) 22...Re8+/– 23.Bc5 (23.b6 Ra8 24.ed4 Bf4+/–) 23...Ra8 (better is 23...de3!? 24.Be3 Ra8+=) 24.Bd4+– (24.ed4?! Bf4 25.Nf3 Bc1 26.Rc1 ab5=) 24...ab5 25.Rc2 Ng4 26.h3 Ne5 27.Be5 Be5 28.Rb1 Ra5 29.Rc5 Ra2 30.Rcb5 Bf6 31.Nf3 1–0. FournierF/RobesonC/JauneauD, Partie Triangulaire, 1999.

3.e3 b6 4.c4 Bb7 (4...e6 5.a4=) 5.Qf3 (5.cd5!? should be considered 5...Qd5 6.Nf3=) 5...Nf6 6.Nc3 e6 7.d4 (7.cd5 ed5 8.Bb2 Qe7+=) 7...Qc8 (7...Nbd7 8.cd5 Nd5 9.Nd5 cd4 10.Qd1 Bd5 11.Qd4–/+) 8.Qg3 (8.Qf4!?+= looks like a viable alternative) 8...cd4 9.ed4 dc4 10.Nf3 Bb4 (10...Nd5 11.Bb2–/+) 11.Bd2 0–0 12.Rc1 (12.Ne5!?–/+) 12...Nbd7 13.Bh6 Ne8 14.Be2 (14.Nd2 Bd5 15.Be2 Qb8 16.Qb8 Rb8–+) 14...Kh8 (14...a6 15.a4 ab5 16.ab5–+) 15.Bf4 Ndf6 (better is 15...a6 16.ba6 Ra6–/+) 16.0–0?? another step towards the grave (better is 16.Nd2–/+) 16...Bc3–+ 17.Rc3 (17.Ne5 the only chance to get some counterplay 17...Bd4 18.Bc4–+) 17...Ne4 18.Rc4 Ng3 19.Rc8 (19.Bg3 there is nothing else anyway 19...Qd7 20.Rfc1–+) 19...Ne2 (19...Bc8?! is not possible 20.fg3 f6 21.d5–/+) 20.Kh1 Rc8 21.Be3 Bf3 22.gf3 Nd6 0–1. Siepe,Hans Joachim – Mantler,Hendrik (1715), Halver qual–B, 2001.

3.e3 Qb6 4.c4 (4.Bb2 Nf6=) 4...d4 (4...Nf6 5.Bb2=) 5.Bb2 (5.Nf3 de3 6.fe3 Bf5=) 5...de3 (5...e5!?=) 6.de3+= f6 (6...Bf5 7.Nf3=) 7.Bd3 g6 (7...Nh6 8.Nc3+=) 8.Nf3 (8.Nc3 e5+/–) 8...f5?? (better is 8...e5+/–) 9.Bh8+– 1–0. Wall,Bill – Timothy, chess.com, 2008.

3.Nf3 Nf6 4.a4 Bf5 5.d4 c4 6.e3 e6 7.Ne5 Bd6 8.Qh5?? (8.g4!? Bg6 9.Bg2=+) 8...0–0 (better is 8...Nh5 9.Ra2 Nf6–+) 9.Qf3 (better is 9.Qd1!?–/+) 9...Bc2–+ 10.Bd2 Ne4 11.Qh5 (11.Nc3 f6 12.Nc4 A) 12...dc4 13.Ne4 Bb3 14.Nd6 Qd6 15.Rc1+= (< 15.Qb7 c3 16.Bc1 Bd5=+); B) 12...Ng5–+) 11...Nd2 12.Kd2 Bb1 13.Rb1 Qa5 14.Ke2 Qa4 15.Nd7 (15.Rc1–+) 15...Nd7 16.e4 (16.Kf3 Qc2 17.Bc4 Qe4 18.Ke2 dc4 19.g3–+) 16...Qa2 (16...Qc2 17.Ke3 Qc3 18.Ke2 Qd3 19.Ke1 Qb1 20.Ke2 Qd3 21.Ke1 Bb4) 17.Kf3–+ de4 18.Ke4 Qb1 19.Kf3 Qd1 (19...f5 20.Ke3 Qc1 21.Ke2 Qc2 22.Ke3 Qc3 23.Ke2 Qd3 24.Ke1 Bb4) 20.Be2–+ Qh1 21.Bc4 Nf6 22.Qh4 Qh2 23.g3 Qh4 (23...Qg1 24.Bd3–+) 24.gh4 Rac8 25.Bd3 Rc3 26.Ke3 Rd3 27.Kd3 Rd8 28.Ke3 a5! 29.f4 a4 30.d5 a3 31.de6 a2 32.e7 Be7 33.h5 a1Q 34.f5 Qe1 35.Kf4 Nh5 36.Kg4 Qe2 37.Kh3 Rd3# 0–1. Seanypop – ricar67, ChessWorld.net, 2004.

3.Nf3 Bg4 4.e3 (4.Ne5 Bf5=) 4...e5+= 5.h3 Bf3 6.Qf3 e4 (6...Nf6 7.Bb2 Bd6 8.Nc3=) 7.Qg3= Be7 (7...Qd6 8.Qd6 Bd6 9.Bb2=) 8.Bb2 (8.Nc3 Bf6=) 8...Bf6 9.Bf6 (9.Nc3 Ne7=) 9...Qf6 (9...gf6?? 10.Qg7 Nc6 11.Qh8+–; 9...Nf6 10.Qg7 Rg8 11.Qh6=) 10.Nc3 Nd7 11.Qc7 Rb8 12.b6 (12.Be2 Ne7=) 12...Qb6 (12...ab6 13.Bb5 Rd8=) 13.Nd5–/+ Qc7 (13...Qb2!? 14.Rd1 Qc2+=) 14.Nc7+= Ke7 (14...Kd8 15.Nd5+=) 15.Nb5 (15.d3 Ngf6=) 15...a6+= 16.Nc3 Ngf6 (16...f5 17.Nd5 Kd6 18.Bc4+=) 17.a4 (17.d3 ed3 18.Bd3 Rhd8=) 17...Rhe8 (17...Rhd8 18.d3=) 18.Be2 (18.d3 ed3 19.Bd3 Ne5=) 18...Ne5 19.f3 ef3 20.gf3 Nc6 (20...c4 21.f4 Ng6 22.Bc4+/–) 21.Rg1 (21.Rb1 Nb4=) 21...Nb4 22.Kd1 g6 23.a5 (23.Rb1 b6=) 23...Kd6 (23...b5 24.ab6 Rb6 25.Na4=) 24.Na4 (24.Bc4 Nbd5 25.Bd5 Nd5 26.Ne4 Kc6+=) 24...h6 25.Ra3 (25.Bc4 Nfd5=) 25...g5 (25...Rbd8 26.Nb6=) 26.Rh1 (26.Bc4 Nfd5=) 26...Nd7 (26...Rbd8 27.Nb6+=) 27.h4= Rh8 (27...gh4 28.Rh4 Re6 29.Nc5 Kc5 30.Rc3 Kd6 31.Rb4+/–) 28.Nb2 (28.Rb3 gh4 29.Nc5 Nc5 30.Rb4 Ne6+/–) 28...gh4 29.c3 (29.Nc4 Kd5=) 29...Nd5 30.Ra4 (30.Rb3 Ne5=) 30...h3 (30...Rbg8 31.Rah4 Rg6 32.Bd3+=) 31.Rh3 (31.Nc4 Ke6=) 31...h5 (31...Rbg8 32.Rg4 Rg6 33.Bd3=) 32.Rah4 N5f6 (32...N7f6 33.f4 b6 34.ab6 Nb6 35.Bh5 Nh5 36.Rh5+/–) 33.f4+= h5 becomes the focus of attention 33...b5 (33...b6 34.ab6 Kc6 35.Nc4+/– (35.Ba6? Rb6 36.Bc4 Rb2–+; 35.Bh5?! Rh5 36.Rh5 Nh5 37.Rh5 Rb6+=)) 34.Bh5 Nh5 35.Rh5 Rh5 36.Rh5 Rg8 37.e4 c4 (37...Rg2 38.Rh6 f6 39.e5 Ke7 40.Rh7 Ke8 41.e6+=) 38.d4 White intends e5 (38.Rh6 f6+/–) 38...Rg1 39.Kc2 Ke7 (39...Rg2 40.Kc1+/–) 40.e5 (40.e5 Ra1 41.d5 Ra5 42.d6 Ke6 43.Rh6 Kf5 44.Rh7+=; 40.Rg5 Ra1 41.Rg8+=). Pilz,Erhard – Schulz,Hans_Juergen, TT–05 TSC, 2003.

3.Bb2 Nd7

4.e3 e5=+ 5.Nf3 (5.d4 ed4 6.ed4 c4=+) 5...Bd6 6.d4 (6.c4 d4=+) 6...cd4 7.ed4 e4 8.Ne5 (better is 8.Nfd2=+) 8...f6?? (8...Qc7!?=+) 9.Nd7 (better is 9.Qh5 g6 10.Ng6 hg6 11.Qh8+–) 9...Bd7 (9...Qd7 10.c4=) 10.Be2?? (better is 10.Qh5 Kf8 11.Qd5+/–) 10...Qa5 11.Nd2 Bb5–/+ 12.0–0 Be2 13.Qe2 Ne7 14.c4 0–0 15.cd5=+ Qd5 16.Qe4 Qe4 17.Ne4+= Bc7 18.Nc5 b6 19.Ne6+= Rfc8 20.Nc7 Rc7= 21.a4 Rd8 22.a5 b5 23.a6 Rcd7 24.Ba3 Nc6 25.d5 Ne5 26.Be7?? Rc8 27.d6–/+ Kf7 28.Rfe1 Nc6 29.Rac1 Ne7 30.Re7?? Re7–+ 31.Rc8 Re1# 0–1. stoker – Webby, Live Game Caissa's Web, 2005.

4.Nf3 Qc7. Hecht.

4.Nf3 Ngf6 5.c4 d4 6.e3 e5 7.ed4 ed4 8.Bd3 Nb6 9.0–0 Bg4 10.a4 Bd6 (10...Be6 11.Qe2=) 11.Re1+= Be7 12.a5 Nbd7 13.h3 Bf3 14.Qf3 (14.gf3?! 0–0=) 14...b6 15.ab6 Nb6 16.Qb7 Ng8 17.Ra6 g6 18.Ba3 Rc8 (18...Kf8 19.Be4 Rb8 20.Qa7+–) 19.Ra7 Nd7 20.Be4 Ngf6 21.Bc6 0–0 22.Bd7 Rb8 23.Qc6 Rb6 24.Qc8 Nd7 (24...Qc8 25.Bc8 Bd6 26.Ba6+–) 25.Qd8 Bd8 (25...Rd8?? 26.Re7 Rd6 27.f4+–) 26.Rd7 Bg5 (26...Re6 27.Re6 fe6 28.Bc5+–) 27.Bc5 Rc6 (27...Re6 28.Re6 fe6 29.Bf8 Kf8 30.Rh7 Be7+–) 28.bc6 d3 29.Bf8 Kf8 30.c7 Kg7 31.c8Q h5 32.Qe8 1–0. Taulien,Hans_Juergen – Orion,Martin, remoteschach.de, 2001.

3.Bb2 Bf5

4.e3 Nd7 5.a4 (5.Nf3 e6=) 5...e5+= 6.c4 Ngf6 7.cd5 Nd5 8.Qf3 (8.Nc3 N7f6+=) 8...Be6 9.Na3 Qh4 10.Nc4 (10.e4 Nb4+=) 10...Nb4–/+ 11.Rc1 (11.Qb7?? Bd5 12.Qc7 Nc2 (12...Bc4?! 13.Nf3 Qg4 14.Bc4 Nc2 15.Kd1 Na1 16.Qc6 Qc4 17.Qa8 Ke7 18.Ba1–/+) 13.Kd1 Na1–+ (13...Bc4?! 14.Nf3 Qg4 15.Kc2 Bf1 16.Rhf1+=)) 11...e4 12.g3 ef3 13.gh4 Bd5 14.d3 Nb6 15.Nb6 ab6 16.e4 Bb3 17.Nf3 Ba4 18.d4 (18.h5 h6 19.d4 Bc2–/+) 18...Bc2–/+ 19.Nd2 (19.Kd2 Be4 20.Re1 f5+=) 19...Ra2 20.Bc3 Nd3 21.Bd3 Bd3 22.d5 Bb5 23.Rg1 Bd3 (23...Bd7 24.Ke2 (24.Bg7?? Rg8–+) 24...Rg8 25.Be5–/+) 24.h5 (24.Rg3 c4 25.Bg7 Bg7 26.Rg7 b5+=) 24...Rg8 25.e5 b5 26.Rg3 Bf5 27.Ra1 (27.Rg5 Bc2–+) 27...Ra6 28.Ra6 (28.Bb2 b4–+) 28...ba6 29.Ba5 h6 (29...c4 30.d6–+) 30.Nb3 (30.Ra3 b4 31.Ra1 g6–/+) 30...c4–/+ 31.Nd4 Be4 (31...Bd3 32.d6–/+) 32.d6 Kd7 33.f4 Bd6 34.Re3 Be5 35.fe5 Bd5 36.Kd2 g5 (36...Ra8 37.Nf5+=) 37.hg6 Rg6 38.Kc3 Rg2 (38...Rg5 39.Bb4+=) 39.Rh3= Ra2 (39...Rg6 40.Re3=) 40.Rh6 Ra5 41.Rd6 Ke8 42.Rd5 Ra3 43.Kd2 Rh3 44.Rd6 Rh2 45.Ke3 Ra2 46.Rb6 Ra3 (46...Ra1 47.Rb8 Ke7 48.Rb7 Kd8 49.Ra7+/–) 47.Ke4+/– Ra1 48.Rb8 Kd7 49.Rb7 Ke8 50.Nf5 Re1 ½–½. Reuter,Alfred – Rushton, Tigerschachclub, 2002.

4.e3 e5 5.Be5+= Nf6 6.c4 d4 (6...Nbd7!? 7.Bc3 Bd6+=) 7.ed4 cd4 8.Qf3 Bc5?? (better is 8...Qd7 9.Bd3 Bg4+–) 9.Qf5+– 0–0 (9...Nbd7+–) 10.Bf6 (better is 10.Bb8 Re8 11.Be5 Qd7+–) 10...gf6 (10...Qf6 11.Qc5 Re8 12.Kd1 Nd7+–) 11.Qc5 Re8 12.Kd1 b6 (12...Re5 13.Qa3+–) 13.Qf5 Re5 14.Qf4 Qd7 (14...Re6 15.Qf3 Nd7 16.Qg4 Kh8 17.Qd4+–) 15.Nf3 (15.Qf3 Qe8 16.Qa8 Re1 17.Kc2 Rf1+–) 15...Rf5 (15...Re8 16.Nd4 Re5 17.Bd3+–) 16.Qg3 Kf8 17.Bd3 Rh5 18.Be4 (18.Be4 a6 19.Ba8+–) 1–0. Taulien,Hans_Juergen – Orion,Martin, remoteschach.de, 2001.

4.e3 f6!? =.

4.e3 Qc7

5.Nc3 A) 5...e6 A1) 6.Nf3 Nf6 (6...Nd7 7.Nh4 Bg6 8.f4 Ngf6 9.Ng6 hg6 10.Qf3 d4) 7.Nh4 Bg6 8.Be2 Nbd7 9.0–0 d4 10.Na4 de3; A2) 6.Nge2 Nf6 (6...Nd7 7.Ng3 Bg6 8.h4 h5 9.Nce2 e5 10.Nc3 Ngf6) 7.Ng3 Bg6 8.h4 h5 9.Nge2 Bd6 10.g3 Nbd7; A3) 6.g4 Bg6 7.Nf3 Nd7 8.Be2 Ngf6 9.g5 Ne4 10.d3 Nd6; B) 5...Qd6 B1) 6.Bd3 Bg6 (6...Bd3 7.cd3 Nf6 8.Nf3 Nbd7 9.0–0 g6 10.Qb3 e5) 7.Nge2 Nf6 8.Nf4 Nbd7 9.0–0 Ne5 10.Na4 c4; B2) 6.g4 Bg6 (6...Be6 7.Nh3 Nf6 8.g5 Ne4 9.Nf4 Nd7 10.Bg2 Nc3) 7.Bg2 Nf6 8.Nge2 Nbd7 9.Nf4 e6 10.g5 Ne4; B3) 6.Nf3 Nd7 (6...Nf6 7.Bd3 Bg6 8.0–0 Nbd7 9.Re1 e5 10.Bg6 hg6) 7.Bd3 Bg6 8.0–0 Ngf6 9.h3 c4 10.Bg6 hg6; C) 5...Nf6 C1) 6.g4 Ng4 (6...Bg6 7.g5 d4 8.gf6 dc3 9.Bc3 ef6 10.Qg4 Nd7) 7.Nd5 Qd7 8.Nc3 a6 9.h3 Nf6 10.Nf3 Qc8; C2) 6.Bd3 Bd3 (6...Bg6 7.Nge2 Bh5 8.h3 c4 9.Bf5 e6 10.g4 Bg6) 7.cd3 Nbd7 8.Nf3 e6 9.0–0 Bd6 10.Qe2 0–0; C3) 6.Nf3 e5 (6...Nbd7 7.Bd3 Bd3 8.cd3 e6 9.0–0 Bd6 10.Qe2 0–0) 7.Ne2 Nbd7 8.Ng3 Bg6 9.Nh4 c4 10.Be2 a6.

5.Ne2 A) 5...Nf6 A1) 6.Ng3 Bg6 (6...Be6 7.Nc3 Nbd7 8.Be2 d4 9.Nce4 Ne4 10.Ne4 Bd5) 7.Bf6 gf6 8.h4 h5 9.Nc3 d4 10.Nd5 Qe5; A2) 6.Nbc3 Nbd7 (6...e6 7.Ng3 Bg6 8.h4 h5 9.Bd3 Bd3 10.cd3 Bd6) 7.f3 e6 8.g4 Bg6 9.Bg2 Bd6 10.g5 Nh5; A3) 6.Bf6 gf6 (6...ef6 7.Nbc3 d4 8.ed4 Nd7 9.Ng3 cd4 10.Nf5 dc3) 7.Nbc3 e6 8.Ng3 Bg6 9.h4 h5 10.Be2 d4; B) 5...e6 B1) 6.c4 Nd7 (6...Ne7 7.Nbc3 dc4 8.Nf4 Nd7 9.g4 Bg6 10.Bc4 Ne5) 7.cd5 ed5 8.Ng3 Bg6 9.f4 Ngf6 10.f5 Bd6; B2) 6.Nbc3 Nf6 (6...Nd7 7.Ng3 Bg6 8.h4 h5 9.Nge2 Bd6 10.g3 Ngf6) 7.Ng3 Bg6 8.Bd3 Nbd7 9.0–0 Bd6 10.Bg6 hg6; B3) 6.Ng3 Ne7 (6...Nh6 7.c4 d4 8.ed4 Nd7 9.d5 Ne5 10.Nf5 Nf5) 7.Nf5 Nf5 8.Bd3 Nd7 9.Nc3 Nf6 10.Qf3 Nd6; C) 5...e5 C1) 6.Nbc3 Nf6 (6...Be6 7.f4 d4 8.Ne4 Bd5 9.N4g3 Nd7 10.fe5 Ne5) 7.Ng3 Be6 8.Bd3 e4 9.Be2 Nbd7 10.0–0 Bd6; C2) 6.c4 Nf6 (6...d4 7.Ng3 Bg6 8.h4 h5 9.Be2 Nf6 10.0–0 Nbd7) 7.cd5 Nd5 8.Nec3 Nf6 9.Qf3 Be6 10.Na3 Be7; C3) 6.Ng3 Be6 (6...Bg6 7.h4 h5 8.Bd3 Bd3 9.cd3 Nf6 10.Nc3 Nbd7) 7.c4 Nf6 8.cd5 Nd5 9.Nc3 Nd7 10.Be2 Bd6; D) 5...Nd7 D1) 6.Nf4 Ngf6 (6...e6 7.g4 Bg6 8.d3 Ne7 9.Nd2 a6 10.h4 e5) 7.Nc3 e6 8.Be2 Ne5 9.0–0 Be7 10.d4 cd4; D2) 6.Ng3 Bg6 (6...Be6 7.f4 Nh6 8.Be2 Nf5 9.0–0 Rd8 10.Nf5 Bf5) 7.h4 h5 8.c4 Ngf6 9.cd5 Nd5 10.Nc3 N5f6; D3) 6.Nbc3 Ngf6 (6...e6 7.Ng3 Bg6 8.Bd3 Ngf6 9.0–0 Bd6 10.f4 0–0) 7.f3 Ne5 8.Ng3 Bd7 9.f4 Neg4 10.h3 Nh6.

5.Nf3 Nd7 (5...Nf6 A) 6.Bd3 Bd3 (6...Bg4 7.Bf6 gf6 8.Nc3 Be6 9.e4 de4 10.Be4 Nd7) 7.cd3 Nbd7 8.Bf6 Nf6 9.Nc3 e6 10.Qa4 Qb6; B) 6.Nc3 Nbd7 (6...e5 7.h3 d4 8.Ne2 Nbd7 9.Ng3 Bg6 10.Be2 e4) 7.Nh4 Be6 8.Nf3 Bf5 9.Nh4 Be6 10.Nf3 Bf5; C) 6.Be5 Qb6 (6...Qd8 7.Nc3 Nbd7 8.Bf4 g6 9.Bd3 Bd3 10.cd3 d4) 7.Nc3 Nbd7 8.Bd3 Ne5 9.Ne5 Bd3 10.cd3 e6; 5...Qa5 A) 6.Nc3 Nf6 (6...Qb4 7.Qc1 Nf6 8.Ba3 Qa5 9.Bc5 Nbd7 10.Bd4 e6) 7.Be2 Nbd7 8.0–0 Rg8 9.h3 g5 10.d4 g4; B) 6.Be2 Nf6 (6...Nd7 7.Nc3 Ngf6 8.0–0 Rg8 9.Nh4 g6 10.f4 d4) 7.Nc3 Nbd7 8.0–0 Rg8 9.d4 0–0–0 10.h3 e6; C) 6.c4 d4 (6...Nf6 7.Bf6 gf6 8.cd5 Nd7 9.Nc3 Nb6 10.Nh4 Bd7) 7.ed4 Nd7 8.Be2 Ngf6 9.0–0 g6 10.Nc3 Bg7; 5...Nh6 A) 6.Be5 Qd8 (6...Qd7 7.Nc3 f6 8.Bg3 e5 9.Be2 Be7 10.0–0 0–0) 7.Nc3 Nd7 8.Bd3 d4 9.ed4 Ne5 10.de5 Bd3; B) 6.Nc3 Qd6 (6...e6 7.Bd3 Bd3 8.cd3 Nd7 9.h3 Nf5 10.0–0 Be7) 7.Bd3 Nd7 8.0–0 Bd3 9.cd3 Ng4 10.Qe2 h5; C) 6.c4 dc4 (6...d4 7.ed4 Nd7 8.Nc3 e6 9.d5 0–0–0 10.Be2 Nf6) 7.Nc3 e6 8.Bc4 Nd7 9.h3 Nb6 10.Be2 Bd6) 6.Be2 (6.Bd3 Bd3 (6...Bg6 7.Nc3 Ngf6 8.0–0 e6 9.Ng5 Ne5 10.Bg6 hg6) 7.cd3 e5= (7...Ngf6 8.Bf6 Nf6 9.Qa4 e6 10.Nc3 Qb6) 8.Nc3 Ngf6 9.0–0 Be7 10.e4 de4; 6.Nc3 Ngf6 (6...e6 7.Nh4 Bg6 8.g4 Ngf6 9.g5 Ne4 10.Ne4 Be4) 7.h3 e6 8.Nh4 d4 9.Ne2 de3 10.fe3 Bd6) 6...0–0–0 (6...e5 7.c4 (7.Nc3 Ngf6 8.Nh4 Be6 9.0–0 Bd6 10.g4 0–0) 7...d4 8.d3= (8.Nh4 Be6 9.Qc2 Nh6 10.0–0 Be7) 8...Ngf6 9.e4 Bg6 10.Nbd2 Be7; 6...e6 7.Nc3 Ngf6 8.Nh4 d4 9.Na4 de3 10.fe3 Bd6; 6...Ngf6 7.Na3 e5 8.c4 Bd6 9.cd5 Nd5 10.Qb3 Nb4) 7.0–0 (7.a4 Ngf6+= 8.a5 e5 9.a6 Bd6 10.Nc3 d4; 7.Nc3 Ngf6 8.Nh4 Bg6 9.0–0 d4 10.Na4 Kb8) 7...e5 (7...Ngf6 8.Ng5 Bg6 9.f4 e6 10.Bd3 Bh5) 8.a4 (8.Ng5 Bg6 9.c4 Be7 10.f4 ef4) 8...Bd6 (8...Ngf6 9.a5 Bd6 10.Ng5 Rdf8) 9.a5 (9.Nc3 Ngf6 10.a5 e4) 9...Nh6? (9...Ngf6!? 10.Ng5 (10.Nc3 e4) 10...Rdf8=; 9...e4 10.Nh4 Bh2) 10.b6 (10.Nc3 d4 11.ed4 ed4+/–) 10...ab6+/– 11.a6 Rhe8?? (better is 11...ba6 12.Ba6 Kb8+/–) 12.a7+– 1–0. Jacewicz,Grzegorz (2125) – Koenig,Uwe (2360), remoteschach.de, 2010.

5.g4 A) 5...Be4 A1) 6.Nf3 Nd7 (6...Nf6 7.g5 Nfd7 8.Nc3 e6 9.Ne4 de4 10.Nh4 Ne5) 7.Nc3 Ngf6 8.g5 Ng4 9.Ne4 de4 10.Bh3 Nde5; A2) 6.f3 Bg6 7.Nc3 Nf6 8.Nge2 d4 9.ed4 Nbd7 10.dc5 Ne5; B) 5...Bd7 B1) 6.g5 d4 (6...e5 7.Nf3 e4 8.Ne5 Bf5 9.Bg2 Bd6 10.f4 Ne7) 7.Nf3 h6 8.g6 fg6 9.Nh4 Qb6 10.Na3 Qf6; B2) 6.Nf3 Bg4 (6...d4 7.h3 a6 8.ed4 Nf6 9.g5 Ne4 10.Bd3 Bf5) 7.Rg1 Qc8 8.c4 d4 9.Be2 h5 10.ed4 Nd7; B3) 6.Nc3 Nf6 (6...e6 7.Nh3 Bd6 8.Qf3 Ne7 9.Nf4 0–0 10.Be2 Ng6) 7.g5 d4 8.gf6 dc3 9.Bc3 ef6 10.Nh3 a6; C) 5...Be6 C1) 6.Nh3 Qd7 (6...Nf6 7.g5 Ne4 8.Nf4 Nd7 9.Nc3 Qd6 10.Bg2 Nc3) 7.f3 h5 8.Nf4 hg4 9.Ne6 Qe6 10.fg4 Qe4; C2) 6.Nc3 d4 (6...Nd7 7.Nge2 d4 8.ed4 Ngf6 9.g5 cd4 10.Nd4 Qe5) 7.ed4 cd4 8.Ne4 Bd5 9.Bg2 e5 10.Ne2 Nd7; C3) 6.g5 Nd7 (6...h6 7.Qh5 d4 8.Bg2 a6 9.ed4 ab5 10.Ne2 g6) 7.Nf3 h6 8.Nc3 hg5 9.Ng5 Ngf6 10.Ne6 fe6; D) 5...Bg6+= D1) 6.Nc3 d4 (6...e6 7.Nge2 Nd7 8.Nf4 d4 9.Ng6 dc3 10.Nh8 cb2) 7.Nd5 Qd7 8.Qf3 e6 9.Nf4 Bc2 10.Bg2 de3; D2) 6.g5 e6 (6...Nd7 7.Nc3 e6 8.Nf3 Ne7 9.h4 h6 10.h5 Bf5) 7.Nh3 Nd7 8.Nf4 Ne7 9.h4 Be4 10.f3 Bf5; D3) 6.Nf3 Nf6 (6...Nd7 7.Nc3 e6 8.h4 h5 9.g5 Ne7 10.Bd3 Bd3) 7.g5 Ne4 8.c4 dc4 9.Bc4 Nd7 10.Nc3 Nb6.

5.Nh3 A) 5...Bh3 6.gh3 Nd7 (6...Nf6 7.Bf6 gf6 8.Qf3 e6 9.Qf6 Rg8 10.Qh4 Nd7) 7.c4 d4 8.ed4 Ngf6 9.dc5 Nc5 10.Qf3 Na4; B) 5...Nd7 B1) 6.Nc3 Ngf6 (6...Bh3 7.gh3 Ngf6 8.Qf3 e6 9.Qg3 Bd6 10.Qg7 Rg8) 7.Bd3 Bd3 8.cd3 e6 9.0–0 Bd6 10.f4 0–0; B2) 6.Nf4 Ngf6 (6...d4 7.Na3 Ngf6 8.Nc4 Nb6 9.Bd3 Nc4 10.Bc4 e6) 7.Nc3 e6 8.Bd3 Bd3 9.cd3 Bd6 10.g3 Ne5; B3) 6.g4 Bg6 (6...Be4 7.f3 Bg6 8.Nc3 Ngf6 9.g5 d4 10.gf6 dc3) 7.Nf4 e6 8.d3 Ne7 9.Nd2 a6 10.h4 e5; C) 5...Nf6 C1) 6.Bd3 Bd3 (6...Bg4 7.Be2 Bh3 8.gh3 Nbd7 9.c4 d4 10.ed4 e6) 7.cd3 Nbd7 8.0–0 e6 9.Nc3 Bd6 10.f4 0–0; C2) 6.Be2 Nbd7 (6...Qd6 7.g4 Be4 8.f3 Bg6 9.g5 Nfd7 10.Nc3 Nb6) 7.0–0 Bh3 8.gh3 e6 9.Nc3 Bd6 10.f4 0–0; C3) 6.Bf6 gf6 (6...ef6 7.Nc3 d4 8.Nd5 Qe5 9.c4 Bd6 10.f4 Qe6) 7.Nc3 e6 8.Nf4 Nd7 9.Bd3 Bd3 10.cd3 Bh6; D) 5...e6 D1) 6.Nf4 Nf6 (6...Nd7 7.g4 Bg6 8.d3 Ne7 9.Nd2 a6 10.h4 e5) 7.Bf6 gf6 8.Nc3 Nd7 9.Qh5 d4 10.Ncd5 Qd6; D2) 6.g4 Bg6 (6...Be4 7.f3 Bg6 8.c4 d4 9.ed4 h5 10.g5 Nd7) 7.Nf4 Nd7 8.d3 Ne7 9.Nd2 a6 10.h4 e5; D3) 6.c4 d4 (6...Ne7 7.g4 Be4 8.f3 Bb1 9.Qb1 Nd7 10.Nf4 d4) 7.g4 Bg6 8.ed4 Nd7 9.d5 ed5 10.Qe2 Ne7.

3.e3 e5

4.Bb2 Bd6 5.Nf3 =+.

4.c4 d4 5.ed4 cd4 6.d3 (6.Qe2 Bd6=+) 6...f5 (6...Nf6 7.Nf3 Bb4 8.Bd2 Bd2 9.Qd2=+) 7.g3 (7.Qh5 g6 8.Qe2 Bb4 9.Bd2 Qe7=) 7...Nf6=+ 8.Bg2 Bd6 (8...e4 9.Ne2 Bb4 10.Bd2=+) 9.Nf3 a6 (9...Qc7 10.0–0=) 10.0–0= 0–0 11.Bg5 (11.Qb3 Kh8=) 11...h6 (11...ab5 12.c5 Bc5 13.Ne5=+) 12.Bf6 (12.Qb3 Bc5 13.Bf6 Qf6=+) 12...Qf6 13.Nbd2 (13.Qb3 Rf7=+) 13...ab5–/+ 14.cb5 Ra3 (14...Be6!?–/+) 15.Nc4= Rc3 16.Nd6 Qd6 17.Rc1 (17.Re1 Rc5=) 17...Rc1=+ 18.Qc1 Be6 19.Qb2 (19.Re1 Rc8 20.Qb2 Nd7=) 19...Nd7 20.Ra1 Nc5 (20...Ra8!?–/+) 21.Qe2= e4 22.de4 Ne4 23.Qd3 Rd8 24.a4 Nc5 25.Qa3 d3 26.Nd2 Qd4 27.a5 Ne4 28.Be4 fe4 29.Qa4 Qc3 30.Ne4= Qc2 31.Qc2?? dc2–+ 32.Nc3 Rd3 33.a6 ba6 34.b6 Rc3 0–1. Knobloch,Rainer – Jeske,Holger, Mecklenburg VP LL2, 1996.

4.c4 Nf6 5.Bb2 Bd6 6.cd5 Nd5 7.Nc3 =+.

4.d4 Bd6 =.

3.e3 Nf6

4.Bb2 e6 =.

4.Bb2 Bf5 5.a4 Nbd7= 6.Nf3 Qc7 7.Be2 e5=+ 8.d3 Bd6 9.Nh4 Be6 10.Nd2 a6 11.c4 d4 12.e4 0–0 13.0–0 h6 14.Nhf3 Bg4 15.h3 Bf3 16.Nf3= a5 17.Rb1 b6 18.Nh4 g6 19.Bc1 Kg7 20.Qd2 Rh8 21.Bg4 Ng4 22.hg4 Be7 23.g3 Nf6 24.f3 Qd8 25.Ng2 Qd7 26.Kf2 Rag8 27.Rh1 g5 28.Bb2 Kf8 29.Rh3 Ke8 30.Rbh1 Bf8 31.Qc1 ½–½. mic (2100) – lsanchez (2250), net–chess.com, 2008.

4.Bb2= Bf5 5.Nf3 Nbd7 6.Be2 Rc8 7.Nh4 (7.0–0 e6=) 7...Bg6 (7...Be4 8.f3 Bg6 9.Ng6 hg6 10.c4=) 8.f4 (8.Ng6 hg6 9.f4 e6=) 8...e6 (8...Be4 9.Nc3=) 9.0–0 Bd6 (9...Be4 10.d3 Bg6 11.Ng6 hg6 12.c4+=) 10.d3 (10.Nc3 e5=) 10...d4 (10...a6 11.Ng6 hg6 12.Na3=) 11.Nd2 (worse is 11.Ng6 hg6 12.ed4 Qb6+=) 11...Nd5 (11...de3 12.Nc4 Qc7 13.g3=) 12.Nc4 N7b6 13.Nd6 (worse is 13.ed4 Nc4 14.dc4 A) 14...Qh4?! 15.g3 Ne3 16.Qc1= (worse is 16.gh4 Nd1 17.Rad1 Bc2+=); B) 14...Ne3–/+; 13.Ng6 hg6 14.Nd6 Qd6–/+) 13...Qd6 14.ed4 (14.Ng6 hg6 15.Bc1 de3–/+) 14...Ne3 (14...Nf4?! 15.Nf3=) 15.Qd2 (15.dc5!? Nd1 16.cd6 Nb2 17.Rfc1–/+) 15...Nf1–+ 16.Rf1 cd4 (16...Na4 17.Ng6 hg6 18.dc5 Qc5 19.d4 Qc2 20.Qc2 Rc2 21.Bd1 Rb2 22.Ba4 Ra2 23.Bd1–+) 17.f5 (17.Nf3 Qd5 18.Bd4 Qa2+=) 17...ef5 (better is 17...Bf5 18.Nf5 ef5 19.Rf5 Na4–+) 18.Qa5?? (better is 18.Nf3–/+) 18...Rc2–+ 19.Ba3 Ra2 20.Bd6 Ra5 21.Rb1 (21.Nf5 Kd7 22.Be5 Re8 (22...Rb5?! 23.Bg7 Re8 24.Bg4–+) 23.Bg7 Re2 24.Nd4 Re3–+) 21...Nd5 (21...a6 22.Be5 Rb5 23.Rb5 ab5 24.Bg7–+) 22.Bf3 Nc3 23.Re1 Kd7 24.Bc5 Re8 (24...Nb5!? 25.Ng6 fg6 26.Re7 Kd8 27.Rb7–+) 25.Re8 Ke8 26.Bd4 Nb5 27.Bg7 Nd6 28.g3 Ra3 29.Be2 b5 30.Ng2 Ke7 31.Bd4 f6 32.Nf4 Bf7 33.Bc5 Ra1 (33...Ra2 34.d4 Bc4 35.Bf3–+) 34.Kf2 a5 35.Ke3 b4 36.Bd4 (36.Bf3 Rc1 37.Kd4 Kd7 38.Bd6 Kd6–+) 36...Ra2 37.h4 (37.Bc5 Rc2 38.d4 Bc4–+) 37...b3 38.Bd1 Nb5 (38...a4!? 39.Bf3–+) 39.Bc5 Kd7 40.d4 Nc3 41.Be2 (41.Bf3 b2 42.Nh5 Bh5–+) 41...Ne2 (41...Ne2 42.d5 b2 43.Ne2 b1Q–+) 0–1. Blumenberg,Walter – Voekler,Bernd, Porz op, 1989.

4.Bb2 Bf5 5.Bf6 ef6 6.Nf3 Bd6 7.c4 dc4 8.Bc4 0–0 9.Nc3 Nd7 10.0–0 Ne5 11.Bd5 Qd7 12.d4 cd4 13.Nd4 Bg6 (13...Bd3 14.Nde2+=) 14.f4 Ng4 15.Qf3 Nh6? (better is 15...Bb4 16.Nd1 Rad8 17.Bb7 Ne3 18.Ne3 Qd4=) 16.f5+– Bf5 17.Nf5 Nf5 18.Qf5 Qf5 19.Rf5 g6 20.Rf3 (20.Rf6?! Be5 21.Raf1 Bf6 22.Rf6 Kg7+–) 20...Be5 21.Rc1 Rac8 22.Ne2 1–0. combijack (1805) – makko (1690), gameknot.com, 2012.

4.Nc3 d4 5.ed4 (5.Na4 e5+=) 5...cd4 (worse is 5...Qd4 6.Nf3 Qf4 7.g3+/–) 6.Na4 e5 7.Bc4 Qa5 (7...Be7 8.c3+=) 8.c3+= Bd6 9.Nf3 (9.cd4 a6 10.Qb3 0–0+=) 9...a6–/+ 10.ba6? (10.Qb3 0–0 11.ba6 Na6 12.Nb6–/+) 10...Na6?? (better is 10...b5 11.cd4 bc4 (11...Qa4 12.Qa4 ba4 13.de5+–; 11...ba4?! 12.de5 Be5 13.Ba3 Ba6 14.Rc1+=) 12.de5 Be5–+) 11.Rb1= (worse is 11.cd4 ed4 12.Rb1 Nb4+=) 11...Ne4?? (11...Qc7 12.Bb5 Bd7 13.Nb6 Bb5 14.Rb5=) 12.a3 (better is 12.Nb6 Nac5 13.cd4 ed4 14.Rb5+/–) 12...dc3+= 13.g3? (better is 13.Nb6 Nb4 A) 14.Nc8?? c2 (14...Rc8?! 15.ab4 Rc4 16.ba5=) 15.Nd6 Nd6 16.Rb4 cd1Q 17.Kd1 Nc4 18.Rc4 0–0–+; B) 14.Rb4 Bb4 15.Na8 cd2 16.Nd2 Bd2 17.Bd2 Nd2 18.Qd2 Qa8 19.Bb5 Ke7 20.Qg5 Ke6 21.0–0+–) 13...Bg4–+ 14.d3?? (14.Be2 Nac5 15.Nc3 Bf3 16.Bf3 Nd3 17.Kf1 Ndf2 18.Rb5 Qc3 19.dc3 Nd1 20.Be4 Nc3 21.Bb7 Nb5 22.Ba8–+) 14...c2 15.Nd2 cd1Q 0–1. Franziska,Franzi (2110) – Orion,Martin (1835), remoteschach.de, 2002.

4.Nc3 e5 5.Nf3 e4 6.Ne5 –/+.

4.c4 e5 5.Bb2 Bd6 6.cd5 Nd5 7.Nc3 =+.

4.c4 e5 5.cd5 Nd5 6.Bb2 =+.

4.Nf3 Bg4 5.Be2 (5.h3 Bf3 6.Qf3 Nbd7=) 5...Nbd7 6.0–0 e5 (6...e6=) 7.d4 (7.Nc3 Bd6=) 7...cd4 (7...e4 8.Nfd2 Be2 9.Qe2+=) 8.ed4 (8.Ne5 Ne5 9.ed4 Bd6+=) 8...e4 9.Nfd2 Be2 10.Qe2 Be7 11.a4 (11.c4 dc4 12.Nc3 Rc8+=) 11...0–0 12.Na3 (12.c4 dc4 13.Nc3 Nb6–/+) 12...Qb6 (12...Nb6 13.a5 Nc8 14.Nb3–/+) 13.Bb2 Ba3 (13...Qe6!?–/+) 14.Ra3+= a6 (14...Rac8 15.Rc1+=) 15.Rb3 (15.c4 ab5 16.c5 Qc7 17.ab5 Ra3 18.Ba3 Ra8=) 15...ab5+= 16.Rb5 (16.ab5 Rfc8 17.Rc1 Ra4+=) 16...Qc6 17.a5 b6 18.ab6 (18.Nb3 ba5 19.Na5 Qc7+=) 18...Nb6 19.Rb1 (better is 19.c4+=) 19...Nc4 (better is 19...Rfb8!?–/+) 20.Rc5= Qa6 (20...Qd6 21.Nc4 dc4 22.g3+=) 21.Nc4+= dc4 22.Bc3 (22.Rc4?? Rac8 23.Ba3 Qc4 (23...Rc4?! 24.Bf8 Kf8 25.c3–+) 24.Qc4 Rc4 25.Bf8 Kf8–+) 22...Rfb8 23.Rb8 Rb8 24.g3 (24.Rc4? Rb1 25.Be1 Re1 26.Qe1 Qc4–+) 24...h6 (24...Qe6 25.Qc4 Qg4 26.Qf1+=) 25.Qc4 (better is 25.d5 Qa3 26.Qc4 Qc1 27.Kg2 Qc2 28.Bf6 Qc4 29.Rc4 gf6 30.Re4+–) 25...Qa8?? (better is 25...Qc4 26.Rc4 Rb1 27.Kg2 Rd1+/–) 26.d5+– Rb1 (26...Re8 27.Bf6 gf6 28.Qd4+–) 27.Kg2 Qa3 (27...Ne8 28.Qe4 Rb6 29.Be5+–) 28.Rc8 Kh7 29.Qe2 Qc1 (29...Rb8 30.Rb8 Qc3 31.Rb3+–) 30.Bf6 Qh1 (30...gf6 31.Qe4 Kg7 32.Qg4 Qg5+–) 31.Kh3 Rg1 (31...Rb6 32.Be7 Rb1+–) 32.Bg7 (better is 32.d6 Qg2 33.Kg4 gf6+–) 32...Qg2 (32...f5 33.Bh6 Qg2 34.Kh4 Qh2 35.Kg5 Qh6 36.Kf5 Qg6 37.Ke5 Qg7 38.Kd6 Qg6 39.Kc5 Rb1+–) 33.Kg4 Kg7 34.c4 (better is 34.Kf4 h5 35.Qe3 Kg6 36.Rg8 Kh7+–) 34...h5 35.Kg5 (better is 35.Kf4 Rb1 36.d6+–) 35...f6= 36.Kf4?? (36.Kf5 Qh3 37.g4 Rg4 38.Rc7 Kg8 39.Rc8 Kh7 40.Rc7 Rg7 41.Kf6 Qh4 42.Ke5 Rc7 43.d6 Qg5 44.Ke4 Qg6 45.Kd5 Qf5 46.Kd4 Qc5 47.Ke4 Qc6 48.Ke3 Qe8 49.Kd3 Qe2 50.Ke2 Rc4 51.Kd3–+) 36...Rf1 (better is 36...Re1! 37.Qe3 Re3 38.Ke3 Qf3 39.Kd4 Qf2 40.Kc3 e3–+) 37.Ke3 (better is 37.Rc7 Kh6 38.Ke3+–) 37...Re1?? (37...Qg1 38.Qb2 Rb1+/–) 38.Qe1 Qf3 39.Kd4 Qd3 40.Kc5 Qa3 41.Qb4 Qa7 42.Qb6 Qa3 43.Kc6 (43.Kc6 Kg6 44.Qb7+–) 1–0. Kappel,Ray – Groth,Detlef, 35. LSS No Engine Cup Preliminary, 2011.

4.c4 d4

5.Nf3= de3 6.fe3 Bf5 7.d4 =+.

5.Nf3= Bg4

6.ed4 cd4 7.Bd3 e5 =.

6.h3 Bf5 7.ed4 cd4 8.Bb2 =.

6.h3 Bh5 7.g4 Bg6 8.Bg2 =+.

6.h3 Bf3

7.Qf3 Qc7

8.Be2 e5 =.

8.Bb2 e5

9.Bd3 a6 =.

9.Be2 e4 10.Qf5 a6 +=.

9.g4 a6 =.

9.e4 Be7

10.Be2 Nbd7

11.0–0 0–0–0 12.Qd3 =.

11.0–0 Nf8

12.a3 0–0–0 =.

12.d3 Ne6

13.Bc1 a6 14.ba6 Ra6 15.Nd2 =.

13.Bc1 h6

14.Nd2 a6 =.

14.g3 a6 15.Na3 =.

14.g3 a6 15.Nd2 =.

14.g3 h5 15.h4 +=.

14.Qg3 0–0–0 =.

14.g3 Kd7

15.a4 Kc8 =.

15.Nd2 Kc8 16.a3 =.

15.Nd2 Ng5 16.Qg2 Kc8 17.f4 ef4 18.gf4 = (< 18.Rf4 Bd6–/+).

15.Nd2 g5

16.Qf5+= Ke8

17.a4 Ng7 18.Qf3 h5 =.

17.Nf3 Nd7=

18.Bd2 Qd6 +=.

18.Ne1 Ng7 19.Qf3 a6 =.

18.Nh2 a6 19.Nf3 =.

18.Nh2 Ng7 19.Qf3 f6 (19...a6!?=) 20.Bd2 Kf7 21.Qg2 (21.a4 Ke8+=) 21...Raf8 22.f4 (22.a4 Ke8+=) 22...gf4= 23.gf4 Rfg8 24.Kh1 h5 (24...Ne6 25.Qf3 Nf4 26.Bf4 ef4 27.Qh5 Kf8 28.Nf3+=) 25.Qf2 (25.fe5 Ne5 26.Nf3 Ke8=) 25...Ke8 (25...ef4 26.Bf4 Bd6 27.Bd6 Qd6 28.Rg1=) 26.f5 Nf8 (26...Kd8 27.Rg1+=) 27.Rg1 Bd8 (27...Bd6 28.Rg2+=) 28.Rg3 Qf7 29.Rag1 Nh7? (better is 29...Kd7+=) 30.Qg2+– Kf8 (30...Ng5 31.h4+– (31.Bg5?! fg5 32.Nf3 g4 33.Ne5 Qf6+=)) 31.h4 1–0. Dietrich,T – Aschenbrenner,Robert, Velden op, 1996.

2.b5 c6

3.a4 cb5 4.ab5 Bd7 5.e3 Bb5?? (Better is 5...e5=) 6.Bb5+– Nd7 7.Bb2 a6 8.Bd7 Qd7 9.Nf3 d4 (9...e6+–) 10.Bd4 Nh6 11.0–0 Ng4 12.h3 Nf6 13.Ne5 Qb5 (13...Qc7 14.Re1+–) 14.Nc3 Qb2 15.Rb1 Qa2 16.Rb7 Rc8 17.Na2 e6 18.Rf7 Be7 19.Rg7 Kf8 20.Rf7 Ke8 21.Qf3 Rc2 22.Qa8 Bd8 23.Rf6 Ra2 24.Nc6 Kd7+– 25.Rf7 Kd6 26.Bh8 Rd2 27.Nd8 a5 28.Qa6 Kc5 29.Rc7 Kd5 30.Qe6 1–0. baqua – lukebutler, Live Game Caissa's Web, 2004.

3.a4 Qb6 4.Nc3 d4=+ 5.Ne4 cb5 6.e3 f5 7.Bb5= Bd7 8.Ng5 Bb5–/+ 9.ab5 Qb5 10.Ne6 Qd7 11.Nf8 Kf8 12.Nf3 de3 13.fe3 Nf6 14.0–0 Ne4 15.Ne5+= Qe6 16.d4 Nc3?? 17.Qf3 g6?? 18.Qb7+– Ne2 19.Kf2 Nc1 20.Qa8 Kg7 21.Rac1 Nd7 22.Qf3 Ne5 23.de5 Rd8 24.Rfd1 Rf8 25.c4 Qe5 26.c5 Rc8 27.c6 Qb2 28.Kg3 Qb4 29.c7 e5 30.Rd7 Kf6 31.Qc6 Kg5 32.Kf2 Qb2 33.Rc2 Qc2 34.Qc2 f4 (35.ef4 Kf4 36.Rf7 Kg5 37.Qc1 Kh5 38.g4 Kh4 39.Qh6 Kg4 40.h3#) 1–0. MasterofDisaster – 126, Live Game Caissa's Web, 2006.

3.a4 c5 4.Bb2 g6?? (better is 4...Nf6=) 5.Bh8+– f6 6.Nc3 Nh6 7.e4 (better is 7.b6 ab6 8.e4 Bg4 9.Bb5 Kf7+–) 7...Ng4 (7...Nf7 8.Bf6 ef6 9.Nd5 Bg7+–) 8.ed5 (8.Nd5 e6 9.Nc7 Qc7 10.Qg4 e5+–) 8...Bh6 (8...e5 9.h3 Nh6 10.Nf3+–) 9.h3 Kf8 (9...Ne5 10.Nf3 Nf7+–) 10.hg4 Bg4 (10...Kg8 11.Rh6 Kh8 12.Qf3+–) 11.Qg4 a6 12.Qe6 (12.Rh6 Kg8 13.ba6 ba6+–) 12...ab5 13.Rh6 Qe8 14.Bb5 (14.Rh7 ba4 15.Bg7) 14...g5 15.Be8 (15.Rf6 ef6 16.Qe8) 15...Ke8+– 16.Qc8 Kf7 17.Qb8 (17.Rh7 Kg6 18.Rg7 Kh6 19.Qh3) 17...Rb8+– 18.Rh7 Kg6 19.Re7 (19.Rh3 g4 20.Rh4 Kg5+–) 19...b6 20.Rb1 (better is 20.Rg7 Kh6 21.Rf7 Rh8 22.Rf6 Kg7 23.Rb6 Rh2+–) 20...Rh8 21.Rb6 Rh1 22.Kf1 Kf5 23.d6 (23.Ne4 Rh6+–) 23...Rh8 24.Ne4 Ra8 25.Nc5 Rc8 26.d7 Kg6 27.dc8Q Kh5 28.a5 (28.Qh3 Kg6 29.Qh7) 28...g4 (28...f5 29.Rh7 Kg4 30.Rb4) 29.a6 (29.Qf5 Kh4 30.Rh7) 29...f5 (29...Kg5 30.Ne4 Kg6 31.Qg4 Kh6 32.Rf6) 30.a7 (30.Qf5 Kh4 31.Rh6) 30...Kh4 (30...f4 31.Qf5 Kh4 32.Rh6) 31.a8Q (31.Qh8 Kg5 32.Qh6) 31...g3 32.f3 Kg5 (32...Kh5 33.Qf5 Kh4 34.Qh8) 33.Qf8 (33.Nh3 Kh5 34.Qh8) 33...Kf4 (33...f4 34.Qd5 Kh4 35.Qf4) 34.Nh3# 1–0. Taulien,Christian – Scheibe,Thomas, remoteschach.de, 2002.

3.a4 e6 4.Bb2= Qb6 5.e3 a6 6.Nc3 Bb4?? 7.Bd3?? ab5?? 8.ab5?? Ra1= 9.Qa1 Qa5? 10.Qa5+/– Ba5 11.bc6 bc6 12.Nd5! f6 13.Nf4 Ne7 14.Nf3 0–0 15.Bc4 Nd5 16.Nd3 Kh8 17.c3 Nd7 18.Nd4+– N7b6 19.Ba2 Nc7 20.Nc6 Na4 21.Ba3 Rd8 22.Nd8 1–0. mic (2120) – bigal (2110), net–chess.com, 2008.

3.a4 Bf5 4.e3 h6 5.Nf3 e6 6.Be2 Nf6 7.0–0 Bc5 8.d4 Bb6 9.Ba3 a6 10.c4 ab5 11.cb5 Nbd7 12.Nc3 c5 13.dc5 Nc5 14.Nh4 Bh7 15.Qd4?? Nb3 16.Qb4 Na1 17.Ra1 Nd7 18.Qd6?? Bc7 19.Qb4 Ba5 20.Qd4 Bc3 21.Qc3 Rc8 22.Qg7= Qf6 23.Qf6 Nf6 24.Bb2 Rc2?? 25.Bf6+– 0–0 26.Bf3 Rfc8 27.Bd4?? Rc1–+ (28.Bd1 Ra1 29.Ba1 Rc1–+) 0–1. weisstra – adept, caissa.com, 2007.

3.a4 Nf6 4.d3 (4.Nf3 Bf5=) 4...Bd7 5.Nc3 (5.c4 e5+=) 5...e6 (5...cb5 6.Nb5 a6 7.Nd4–/+) 6.Nf3 Bb4 7.Bd2 Qa5 8.Bc1?? (better is 8.bc6 Bc6 9.Nb5–/+) 8...Qd8 (better is 8...Bc3 9.Bd2 cb5–+) 9.Bb2?? (9.Bd2 0–0+=) 9...Qa5?? (9...cb5 10.ab5 Qc8 11.Qd2–+) 10.Qd2?? (10.Bc1 Bc3 11.Bd2 cb5 12.e3–+) 10...Qb6 (10...e5 11.e3 d4 12.ed4–+) 11.e3 (11.Ba3 Ba5 12.Kd1 cb5 13.ab5 Qf2–/+) 11...cb5 (11...c5 12.a5 Ba5 13.Be2–+) 12.Ne5 (12.ab5 Bb5 13.Be2 Nbd7–/+) 12...Bc6 (12...d4 A) worse is 13.Nd7 Nbd7 (13...Nfd7?! 14.ed4 ba4 15.Ra4–/+) 14.ed4 Nd5–+; B) 13.ed4 Nd5 14.Ke2 (14.Nd7 Nd7 15.ab5 Qd4–+) 14...Qd4 15.Nd5 Qb2 16.Nc7 Kd8 17.c3 Qa1 18.Na8 Bc3 19.Qg5 Kc8 20.Nf7–+) 13.Nc6–/+ bc6 (13...Qc6?! 14.ab5 Qb6 15.Ra4=) 14.Be2 (14.ab5 cb5 15.Ba3 Qa6–+) 14...0–0 (better is 14...e5!? 15.a5 Ba5–+) 15.0–0–/+ Nbd7 16.Qd1 a6 17.a5 (better is 17.Na2!? Bd6 18.ab5 cb5 19.Qd2–+) 17...Ba5–+ 18.Bf3 Bc3 19.Bc3 a5 20.e4 d4 21.Bd2 b4 (21...a4 22.Qe1–+) 22.Bf4 (22.Ra4 Nc5 23.Ra2 e5–+) 22...e5 23.Bg5 c5 24.h4 (24.Qe2 a4–+) 24...h6 25.Bd2 Rac8 (25...a4 26.g4–+) 26.Kh1 (26.g4 c4–+) 26...c4 27.g4 cd3 28.cd3 Rc6 (28...Nc5 29.g5 hg5 30.hg5–+) 29.Rg1 White intends g5 (29.g5 hg5 30.hg5 Nh7–+) 29...Nc5 30.Qb1 (30.g5 hg5 (30...Nd3?! 31.Qe2 Qa6 32.gf6 Rf6 33.Rg3–+) 31.Bg5 a4–+) 30...Qa6 (30...Qb5 31.g5 hg5 32.hg5–+) 31.Be2? (31.Bb4 Rb8 (31...ab4?! 32.Ra6 Na6 33.g5–/+; 31...Nd3?! 32.Ra5 Qb6 33.Qd3 Qb4 34.Re5–/+; 31...Qd3?! 32.Qd3 Nd3 33.Bf8 Kf8 34.Kg2–+) 32.Ra5 Qd3 33.Qd3 Nd3–+) 31...Qb5 (31...Nfe4 32.Bb4 Nf2 33.Kg2–+) 32.g5 (32.Re1 Rb8 33.f4 Nfd7–+) 32...hg5 33.Rg5 (33.Qf1 gh4 34.Qg2 g6–+) 33...Nfe4! 34.Qg1 (34.de4 Exploits the pin 34...Qe2 Eliminates the defender e2) 34...Ng5 35.Bg5 Ne4 36.Qg2 Ng5 37.hg5 g6 (better is 37...b3 38.Rb1–+) 38.Qf3 (38.Qh3 Rfc8–+) 38...Rfc8 (better is 38...b3 39.Rb1 b2 40.Kg2–+) 39.Kg2 e4 (39...b3!? 40.Rh1 Rc1 41.Bd1–+) 40.de4 (40.Qf4 ed3 41.Bg4 Re8–+) 40...Qg5 41.Qg4 Rc5 42.f3 (42.Qg3 Qg3 43.Kg3 b3–+) 42...Qg4 (42...Qd2 43.f4 Rc2 44.f5 Qe2 45.Qe2 Re2 46.Kf3 Re3 47.Kf4–+) 43.fg4 Re5 (better is 43...Rc2 44.Kf3 R8c3 45.Kf4 Re2 46.Ra5–+) 44.Kf3 (44.Bd3 Rc3 45.Rd1 b3–+) 44...g5 (44...Rc3!? 45.Kf4 f6 46.Bf3–+) 45.Bd3 Ra8 (45...Kg7 46.Ra2–+) 46.Rc1 (46.Bc4 a4–+) 46...a4 47.Rc7 (47.Bc4 b3 48.Rb1 Rc8–+) 47...b3 (47...a3 48.Bc4 a2 49.Bf7 Kf8 50.Ba2 Ra3 51.Ke2 Re4 52.Kd2 Ra2 53.Kd3 Rg4 54.Rd7 Ra3 55.Kc4 d3 56.Kc5 Rc3 57.Kd5–+) 48.Bc4 Rf8 (48...b2!? 49.Rf7 Rc5 50.Be6–+) 49.Rd7 Ra5 50.Rd4 b2 51.Ba2 Rb8 52.Rd7 (52.Rd1 Rc5 53.e5 Re5–+) 52...b1Q 53.Bf7 (53.Bb1 Rb1 54.Rd8 Kg7 55.Rd2 Rb3 56.Ke2–+) 53...Kh8 0–1. Langlotz,Peter – Herma,Gerhard, Baden–ch AT3, 2004.

3.bc6 Nc6 4.c3 e5 5.e3 e4 6.d4 ed3 7.Qd3 Ne5 8.Qd4 Nc6 9.Qa4 Bd7 10.e4 de4 11.Qe4=+ Qe7 12.Bd3? Nf6 13.Qe3 0–0–0 14.Ne2 Nd5 15.Qg3=+ Ne5 16.0–0 g6 17.Nd4 Nd3 18.Qd3 Rg8 19.Qc4 Bc6 20.Nc6+/– bc6 21.Qc6 Qc7 22.Qa6 Qb7 23.Qe2 Bc5 24.Bb2 Rge8 25.Qg4 Qd7 26.Qc4 Qc6 27.Ba3?? Bf2!!–+ 28.Rf2 Qc4 29.Rf7 Re1 30.Kf2 Qe2 31.Kg3 Qe5 32.Kh4 Qh2 33.Kg4 Qg2 34.Kh4 Rh1# 0–1. Jolilein – willibaerchen@, mySchach.de, 2005.

3.d4 cb5 4.e4 +=.

3.d4 Nf6 4.e3 Bd7 5.a4 a6 6.ba6 Na6 7.c4 Nb4 (7...Bf5+=) 8.c5 (8.Qb3!? c5 9.dc5=) 8...b6 (8...Bf5 9.Na3 Qa5 10.Bd2 Qa4 11.Qa4 Ra4 12.Bb4 Rb4 13.Nf3–/+) 9.cb6+= Qb6 (9...Bf5 10.b7 Nc2 11.Ke2 Rb8+=) 10.g3 (better is 10.Bd2!?+=) 10...Bf5–/+ 11.Na3 Qa5 12.Bd2 e6 13.Nf3 (13.f3!?–/+) 13...Qa4–+ 14.Be2 (14.Qa4 Ra4 15.Ke2 Bd3 16.Kd1–+) 14...Qd1 15.Kd1 Ng4 16.Rf1 (16.Be1 Nd3 17.Bd3 Bd3 18.h3–+) 16...Nd3 0–1. White – Poschmann, email CTON, 1996.

3.e3 a6 4.ba6 Na6 5.Bb2 e6 6.Be2 Nf6 7.Nf3 Bd6 8.0–0 0–0 9.a3 Qc7 10.Nc3 e5–/+ 11.h3 e4 12.Nd4 Bh2 13.Kh1 Be5 14.Ba6 Ra6–/+ 15.Nb3 b6 16.Qc1 c5 17.d4 ed3 18.cd3 Bb7 19.Nb5= Qb8 20.Be5 Qe5 21.d4 cd4 22.N3d4 Ne4 23.Nf3 Qh5 24.Qb2 Ng5 25.Ng5+= Qg5 26.Nc7 d4 27.Na6?? Qg2# 0–1. mic (2155) – tomy (2285), net–chess.com, 2009.

3.e3 Nf6 4.f3 Bd7 5.Nc3 e6 6.Nge2 cb5–/+ 7.a3 b4 8.ab4 Bb4 9.Ba3 Ba3 10.Ra3 Qe7 11.Qa1 a6 12.g4 Nc6 13.h4 Nb4 14.Qb2? Nc2!! 15.Kd1 Na3 16.Qb7 0–0 17.Nd4 Ba4! 18.Na4 Qb7 19.Nc3 e5 20.Nf5 d4 21.ed4 Qf3 22.Ke1 Nc2 0–1. Papa Lazarou II – colinwebb, ChessWorld.net, 2004.

3.a4 a6

4.ba6 ba6 5.e3 Nd7 6.Bb2 (6.d4 e5=+) 6...Ngf6 (6...Rb8 7.Ra2–/+) 7.g3 (7.Nf3 Rb8 8.Ra2 e6=+) 7...e5 (7...Rb8 8.Bf6 Nf6 9.Nf3–/+) 8.Bg2 (8.f4 ef4 9.gf4 Be7–/+) 8...Bd6 9.d3 Bb7 10.Ne2 Qb6 11.Bc3 Bc5 12.0–0 d4 13.ed4 ed4 14.Bd2 0–0= 15.Na3 Ba3 16.Ra3+= c5 17.Rb3 Qd8?? 18.Rb7 Rb8 19.Ra7 Rb2?? 20.Ra6 Qc8 21.Rc6 Qb8 22.Qa1 Ne5 23.Bf4 Nfd7 24.Be5 Ne5 25.Rc5 Nd3 26.cd3 Re2 27.a5 Rd2 28.a6 Rd3 29.a7 Qb4 30.Ra5 Rb3 31.a8Q 1–0. MasterofDisaster – robko4, Caissa's Web, 2004.

4.ba6 Na6 5.Nf3 =+.

4.Bb2 ab5 5.ab5 Ra1 6.Ba1 cb5 7.e3 Nc6 (7...b4!?=+) 8.Bb5= e6 9.Nf3 Bc5?? (Better is 9...Nf6+=) 10.Bg7+– (10...Qa5 11.Bc6 bc6 12.Bh8+–) 1–0. MasterofDisaster – bampot, Live Game Caissa's Web, 2004.

3.a4 e5

4.Bb2 Bd6 5.e3 Nf6 6.Bd3 Bg4 7.f3 Be6–/+ 8.Nh3 Bh3 9.gh3 e4 10.fe4 de4 11.Bc4 Nbd7 12.bc6 bc6 13.Rg1 Rb8 14.Bd4 Ne5 15.Be2 c5 16.Bc3 0–0 17.Na3 Nd5 18.Rg2 White gets strong initiative 18...Qd7 19.Bg4 f5 20.Be2 f4 21.Bc4 Nc4?? 22.Rg7= Qg7 23.Bg7 Kg7 24.Nc4+– Be7 25.Qh5 Nb4 26.Rc1 Na2 27.Rd1 fe3 28.Ne3 Kh8 29.Ng4 Bf6 30.Ne5 Be5 31.Qe5 Kg8 32.Qe6 Kh8 33.Qa2 Rb4 1–0. Comet B50 – Comet B25, 2005.

4.e3 cb5 5.Bb5= Bd7 6.Qh5 Bd6=+ 7.Bb2 a6 8.Be5? g6–+ 9.Bd7 Nd7 10.Qf3 Be5 11.Nc3 Bc3 12.dc3 Ngf6 13.Ne2 Ne4 14.0–0 Ne5 15.Qf4 Qe7 16.Rfd1 g5 17.Qf5 Qe6 18.Qe6 fe6 19.f3 Nc5 20.Nd4 Rc8 21.Rab1 Nc4 22.Kf2 Rf8 23.Ke2 e5 24.Nb3 Na4 25.Rd3 e4 26.fe4 de4 27.Nc1 ed3 28.Kd3 0–1. Comet B25 – Fritz 8, 2005.

4.e3 Nf6 5.Nf3 Bg4 6.h3 Bf3 7.Qf3 =+.

4.Nf3 Bd6 5.d4 –/+.

3.e3 cb5

4.Bb5 Nc6 5.Bb2 Qb6 6.Qe2 (6.Nc3 Nf6=) 6...Bd7 7.Nc3 Nb4 (Better is 7...Nf6!?=) 8.Bd7+/– Kd7 9.Rc1 (9.d3 Qg6 10.f4 e6+/–) 9...Na2 10.Qg4 e6?? 11.Qa4+– Kd8 12.Qa2 Nf6 13.Nf3 Be7 14.Ba3 Rc8 15.0–0 Ke8 16.Rb1 Qa6 17.Be7 Qa2 18.Na2 Ke7 19.Rb7 Kd6 20.c3 a5 21.Rf7 Rb8 22.Rg7 Rb2 23.Nc1 Ne4 24.Rd1 Ra8 25.Rh7 a4 26.Rh6 Rb1 27.Nd4 Nc5 28.h4 a3 29.h5 a2+= 30.c4?? a1Q–+ 31.Nde2 Nd3!! 32.cd5 Kd5 33.Nc3 Kd6 34.Nb1 Qb1 35.e4 Nc1 36.e5 Kd5 37.Kh2 Qc2 38.Rf1 Qd2 39.Rh7 Ke5 40.h6 Nd3 41.Kg1 Rf8 42.f3 Nf4 43.Rg7 Ne2 44.Kf2 Qh6 45.Rg4 Nf4 46.Re1 Kd6 47.Re4 Nd3 48.Ke2 Ne5 49.Rh4 Qg6 50.Rd4 Ke7 51.Kf1 Rf3 52.gf3 Nf3 0–1. MasterofDisaster – Checkmates, Live Game Caissa's Web, 2004.

4.Bb5 Bd7 5.Be2 e6 6.Bb2 Nf6 7.Nf3 Be7 8.Ne5 Nc6 9.Nd7 Qd7 10.0–0 0–0 11.Nc3 Rac8 12.Bb5 a6 13.Be2 b5 14.a3 Ne5 15.d4?? Nc4–/+ 16.Bc4 Rc4–+ 17.Qd3 Rfc8 18.Rfc1 Qc7 19.g3 Qc6 20.Ra2 g6 21.Ba1 a5 22.Rb1 b4–+ 23.ab4 ab4 24.Ne2 Rc2–+ 25.Ra6 Qb7 26.Bb2? Ne4 27.Bc1 R8c4 28.f3?? Qa6 (28...Qa6 29.Kg2 Nf6–+) 0–1. mic (2100) – mgomdysey (2055), net–chess.com, 2008.

3.e3 Bd7

4.a4 a6 5.Bb2 ab5 6.ab5 Ra1 7.Ba1 cb5 8.Nc3 b4 9.Nd5 e6 10.Nf4 (10.Nb4 Nf6 11.Nd3 Bc6+/–) 10...Qa5 11.Be2 (11.Nf3 Nc6+/–) 11...f6 (11...e5 12.Nh5+=) 12.Nf3 e5 13.Nh5 e4 14.Nd4+/– g6 15.Nf4 Bd6 16.g3 Bf4 17.gf4 Bh3 18.Bc4 Ne7 19.Ne6 Nd7 20.Ng7 Kf8 21.Ne6 Ke8 22.Rg1 b5 23.Bb3 Qb6 24.Bd4 Qd6 25.Ng5 fg5 26.Bh8 gf4 27.Qe2?? f3–+ 28.Qb5 Qh2 29.d4?? Qg1 30.Kd2 Qf2 31.Kc1 Qe3 32.Kb2 Qc3 33.Kc1 f2 34.Bc4 e3 35.Be5 Qa1 0–1. MasterofDisaster – Checkmates, Live Game Caissa's Web, 2004.

4.a4 e5 5.Bb2 e4 =.

4.Bb2 cb5 5.Nc3 Bc6 (5...Nf6!? 6.Bb5 e5=) 6.Nb5 Bb5 (6...Nd7 7.Nf3+=) 7.Bb5+/– Nd7 8.f4 (8.Nf3 a6 9.Be2 Ngf6+/–) 8...a6 9.Bd3 (better is 9.Be2+/–) 9...e5? (better is 9...Ngf6+/–) 10.fe5+– Ne5?? (10...Nh6+–) 11.Be5 Qg5 (11...Nf6 12.Nf3+–) 12.Nf3 Qg2 13.Rg1 Qh3 14.Rg3 (14.Rg7!? f6 15.Rg3 Qe6+–) 14...Qe6 15.Rg7 Bg7 (15...Ne7 16.Rg2 f6+–) 16.Bg7 1–0. Taulien,Hans_Juergen (2350) – Seethaler,Franz (1945), remoteschach.de, 2002.

3.e3 e5

(--> 1.b4 e5 2.b5 d5 3.e3 c6).

4.Bb2 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 c6).

4.Bb2 Bd6 5.Nf3 Nd7 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 c6).

4.Bb2 e4 5.c4 (--> 1.b4 e5 2.Bb2 e4 3.e3 d5 4.c4 c6 5.b5).

4.Bb2 f6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 c6).

2.b5 d4

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

3.Bb2 Nf6 4.e3 e5 (--> 1.b4 e5 2.b5 d5 3.Bb2 d4 4.e3 Nf6).

3.c3 b6 4.c4 (4.Nf3!?+=) 4...c5 (4...e5 5.Bb2=+) 5.d3 (5.Nf3 Nf6=) 5...e5 6.e4 (6.g3 Bb7 7.Nf3 Nf6=) 6...g6 (6...a6 7.ba6 Bd6 8.Be2=+) 7.f4 (7.Nf3 Nd7=) 7...Nd7 (7...ef4 8.Bf4 Bh6 9.Bg3=) 8.f5 (8.Nf3 ef4 9.Bf4 Bh6=) 8...f6 (8...Bh6 9.Nd2=+) 9.Qg4 Ne7 10.h4 (10.Be2 Bg7=) 10...h5 (10...a6 11.ba6 Ba6 12.Be2=+) 11.Qg3 (11.Qd1 gf5 12.Be2 Qc7=) 11...gf5–/+ 12.ef5 Bb7 13.Qf2 (13.Be2 Qc7–/+) 13...Qc7 (13...e4 14.de4 Be4 15.Ne2 Nf5 16.Nf4–/+) 14.Ne2 0–0–0 15.Ng3=+ Rg8 16.Nh5 Rh8 17.Be2 Bh6 18.Bb2?? Be3–+ 19.Qg3? Nf5 20.Qg4?? Rh5!–+ 21.Qh5 Ng3 22.Qg4 Nh1 23.Bf3 Nf2 24.Qf5 Bf3 25.Qf3 Nd3 26.Ke2 Nf4 27.Kf1 f5 28.Qa8 Nb8 29.Qf3 e4 30.Qg3 Qf7 31.Na3 Rg8 32.Qh2 Rg2 33.Qh1 Rf2 34.Ke1 Nd3 35.Kd1 Rd2# 0–1. Jolilein – bane, mySchach.de, 2005.

3.c3 e5 4.Nf3 =.

3.e4 de3=+ 4.fe3 e5 5.Qf3 (5.Bb2 Nd7=+) 5...Nf6 6.Nc3 Bb4 (6...Nbd7 7.Bc4=+) 7.Bc4 Bc3 8.dc3 e4 (8...Qd6 9.Qg3 0–0 10.Nf3–/+) 9.Qf4 (better is 9.Qg3 Qe7 A) 10.Qg7? Rg8 11.Qh6 Rg6–+ (11...Rg2?! 12.Ba3 Ng8 13.Qh7 Qa3 14.Ne2=+); B) 10.a4=) 9...Qd7 (better is 9...Qd6 10.Qg5 0–0–/+) 10.Ba3+/– Qg4 11.Qe5 (11.Qc7 Nbd7 12.Qd6 Ng8+/–) 11...Be6 12.Qc7 Nbd7 13.Qd6 (13.Be6 Qe6 14.Qb7 Qd5 15.Qd5 Nd5+=) 13...Kd8 (13...0–0–0 14.Bf1=+) 14.Qe7 (better is 14.Be6!? fe6 15.Ne2+/–) 14...Kc8=+ 15.Be6 Qe6 (15...fe6 16.g3=+) 16.Qb4 (16.Qe6 fe6 17.Ne2 a6=) 16...b6 (16...Ng4 17.Qd4=) 17.Rd1 (17.Nh3 Ne5=) 17...Nd5 18.Qc4 Nc7 19.Qd4 Nb5=+ 20.Qb4 Na3 21.Qa3 Nc5 22.Ne2 Qg4 23.Rf1 Qg2–/+ 24.Nf4 Qc2 25.Nd5? Nd3–+ 26.Rd3 Qd3 27.Ne7?? Kb7–+ 28.Rf7 Qe3 29.Kf1 Qh3 30.Ke2 Qh5 31.Ke3 Qf7 32.Qd6 Qf3 33.Kd4 Qd3 34.Ke5 Qd6 35.Kd6 e3 36.Nd5 e2 (37.Nb6 ab6 38.Ke6 e1Q 39.Kf5 Rhf8 40.Kg4 Ra4 41.c4 Qe4 42.Kg5 Rf5#) 0–1. steelnuts – Natron, Caissa.com, 2004.

3.Nf3 f6 A) 4.e3 de3 5.fe3 e5 6.Bc4 Bg4 7.0–0 e4 8.Bf7 Kf7 9.Ne5 Ke8 10.Qg4; B) 4.Ba3 B1) 4...e5 5.Bf8 Kf8 6.e3 a6 7.ba6 Na6 8.Bc4 Bf5 9.0–0 d3 10.cd3; B2) 4...Bg4 5.e3 (5.e4 Nh6 6.h3 Bh5 7.Bc4 e5 8.Bf8 Rf8 9.0–0 a6 10.Re1) 5...de3 6.fe3 a6 7.ba6 Na6 8.Bd3 e5 9.Bf8 Kf8 10.0–0; B3) 4...Nh6 5.e3 (5.e4 e5 6.Bf8 Rf8 7.Bc4 a6 8.0–0 Qd6 9.c3 ab5 10.Bb5) 5...de3 6.fe3 a6 7.Be2 ab5 8.Bb5 Bd7 9.Bc4 b5 10.Bd3; C) 4.c3 e5 5.Qc2 (5.Qa4 c5 6.e3 e4 7.Ng1 Bf5 8.ed4 Nd7 9.Ne2 Bd6 10.Ba3) 5...dc3 6.Nc3 a6 7.e3 c6 8.ba6 Na6 9.d4 Nb4 10.Qb1; D) 4.e4 D1) 4...e5 5.Bc4 (5.c3 dc3 6.Nc3 Bc5 7.Bc4 Bg4 8.Bb2 Ne7 9.h3 Bh5 10.Na4) 5...Nd7 6.c3 Nb6 7.Bg8 Rg8 8.cd4 ed4 9.Qb3 Rh8 10.0–0; D2) 4...de3 5.fe3 e5 6.Bc4 Bg4 7.0–0 e4 8.Bf7 Kf7 9.Ne5 Ke8 10.Qg4.

3.Nf3 Nf6 4.Bb2 A) 4...Bd7 5.a4 (5.Nd4 e5 6.Nb3 Bd6 7.e3 0–0 8.Na5 Qc8 9.Nc4 Re8 10.d4) 5...a6 6.Nd4 e5 7.Nb3 Bd6 8.Na5 Ne4 9.Nc3 Nc3 10.Bc3; B) 4...e5 5.Ne5 Ne4 6.Nf3 Bc5 7.e3 de3 8.fe3 0–0 9.Bd3 Re8 10.0–0; C) 4...c5 5.e3 (5.c3 dc3 6.Nc3 Bf5 7.h3 Nd5 8.g4 Nc3 9.dc3 Qd1 10.Rd1) 5...de3 6.fe3 e6 7.Be2 Nbd7 8.0–0 Bd6 9.Na3 e5 10.Nc4.

3.Nf3 Bg4 4.Bb2= (4.h3 Bf3 5.ef3 e6 6.Bb2 Bc5 7.Bd3 Nf6 8.0–0 a6 9.a4 Nd5 10.Be4) 4...Bf3 5.ef3 Nf6 6.Qe2 c5 7.c3 dc3 8.dc3 e6 9.Nd2 Be7 10.Rd1.

3.Nf3 Nh6 A) 4.Bb2 Nf5 5.e4 (5.e3 de3 6.fe3 a6 7.Nc3 e6 8.Bd3 ab5 9.Bb5 c6 10.Be2) 5...de3 6.fe3 a6 7.Nc3 ab5 8.Bb5 Nd7 9.0–0 Nd6 10.a4; B) 4.e3 de3 5.fe3 Bg4 6.Bb2 Nd7 7.Be2 Nf6 8.0–0 Bf5 9.Ne5 e6 10.Bf3; C) 4.e4 C1) 4...de3 5.fe3 Bg4 6.Be2 Nd7 7.Bb2 f6 8.Nd4 Be2 9.Qe2 Nb6 10.Ne6; C2) 4...Qd6 5.c3 (5.e5 Qb6 6.c3 Bg4 7.cd4 Nf5 8.Bb2 e6 9.a4 c6 10.a5) 5...e5 6.Ba3 c5 7.bc6 Qc6 8.Bd3 Qg6 9.Bf8 Kf8 10.Ne5; C3) 4...Bg4 5.h3 (5.Be2 e6 6.0–0 a6 7.ba6 Na6 8.d3 Nc5 9.Bh6 gh6 10.Ne5) 5...Bh5 6.g4 Bg6 7.d3 e6 8.c3 dc3 9.Nc3 Ng8 10.Bg2; D) 4.c3 Nf5 5.Bb2 (5.Qa4 Nd7 6.Qc2 Nf6 7.Qd3 dc3 8.Qd8 Kd8 9.Nc3 Nd6 10.d4) 5...Nd6 6.Qa4 dc3 7.Nc3 Nd7 8.e4 Nb6 9.Qc2 Bg4 10.Ne5.

3.Nf3 Qd5

4.Bb2 c5 (4...e5 5.e3 Bg4 6.ed4 e4 7.Nc3 Qe6 8.Ng5 Qf5 9.f3 ef3 10.Nf3) 5.bc6 (5.e3 e5 6.ed4 ed4 7.Bd3 Qe6 8.Be2 Bd6 9.0–0 Qg6 10.Bd3) 5...Nc6 6.c3 Qb5 (6...e5 7.cd4 ed4 8.Qa4= Bc5 9.e3 Bd7 10.Bc4) 7.Qb3+= Qc5 (better is 7...Qb3!? 8.ab3 dc3 (8...Be6 9.b4 dc3 10.Bc3) 9.Nc3 Bg4+= (9...Be6 10.e4) 10.Nb5) 8.cd4+/– Be6?? (better is 8...Qb4+/– 9.Nc3 Bg4 10.Ne5) 9.Qb7+– Qc2 (9...Qb6 10.Qa8 Nd8 11.Ba3+–) 10.Qa8 Nd8 11.Qb8 (11.Ba3 Bd7+–) 11...Nf6 12.Na3 Qe4 (12...Qc8 13.Qa7 Nc6 14.Qa4+–) 13.Ng5 (better is 13.Nb5 Nd5 14.Ne5 Qf5+–) 13...Qf5 14.Ne6 fe6 (14...Qe6 15.Qa7 Qd5 16.Qa4 Nd7 17.Nb5+–) 15.Nb5 (better is 15.Qa7 g6+–) 15...Qc2 (15...g6 16.Na7 Qd5 17.e3+–) 16.Nc7 Kd7 17.Rc1 Qe4 18.e3 g5 19.Bb5 Nc6 (19...Qc6 20.Rc6 Nc6 21.Qb7 Kd8 22.Qc6 Kc8 23.Ba6 Kd8 24.Ne6) 20.d5 (20.Na6 Qd5 21.Rc6 Qc6 22.Nc5) 20...Nd5 (20...Qd5 21.Nd5 ed5 22.Rc6 e5 23.Rf6 Ke7 24.Qd6) 21.Bc6 Kd6 22.Nd5 1–0. Taulien,Hans_Juergen (2350) – Homann,Arne (1805), remoteschach.de, 2003.

4.c3 A) 4...Nf6 5.cd4 (5.Qa4 Bd7 6.Qd4 Qb5 7.Qf4 Qa5 8.Na3 Nd5 9.Qg5 f6 10.Qh5) 5...Qb5 6.Nc3 Qd7 7.e3 e6 8.Ne5 Qd8 9.Qa4 Nbd7 10.Rb1; B) 4...Qb5 5.Nd4 (5.cd4 Nf6 6.Nc3 Qd7 7.e3 e6 8.Ne5 Qd8 9.Qa4 Nbd7 10.Rb1) 5...Qb6 6.Nf3 Nf6 7.Qc2 c5 8.Na3 Nc6 9.Rb1 Qc7 10.Nb5; C) 4...e5 5.cd4 (5.Qc2 c5 6.cd4 ed4 7.e4 Qe6 8.Bc4 Qg6 9.0–0 Bd6 10.d3) 5...ed4 6.Bb2 Qb5 7.Bd4 Nc6 8.Nc3 Qa5 9.e3 Nge7 10.Rb1.

4.e3 A) 4...Bg4 5.Bb2 (5.h3 Bh5 6.g4 Bg6 7.c4 dc3 8.Nc3 Qd6 9.d4 Nf6 10.Ne5) 5...de3 6.fe3 Nf6 7.h3 Bh5 8.Bd3 Nbd7 9.0–0 0–0–0 10.Nc3; B) 4...e5 5.Bb2 (5.ed4 ed4 6.Bd3 Nf6 7.Qe2 Be6 8.c4 dc3 9.Nc3 Qc5 10.Bb2) 5...c5 6.ed4 ed4 7.Bd3 Qe6 8.Be2 Qg6 9.0–0 Bd6 10.Bd3; C) 4...de3 5.fe3 e5 6.Bb2 Nd7 7.Be2 Ngf6 8.0–0 e4 9.Nc3 Qc5 10.Nd4.

2.b5 Bd7

3.Ba3 Bb5 4.g3 (4.Nf3 Nf6–/+) 4...Nd7 (4...d4 5.Nf3–/+) 5.Nc3 (5.Bg2 Ngf6–/+) 5...c6 (5...Bc6 6.d4 Nb6–/+) 6.e3? (better is 6.Nb5 cb5 7.Nf3=+) 6...Bf1–+ 7.Kf1 Ngf6 (7...Qa5 8.Bb2–+) 8.Qf3 (8.Kg2 Qa5 9.Qc1 Rb8–+) 8...e6 (better is 8...Qa5!? 9.Bb2 Ne5–+) 9.Bf8–/+ Nf8 10.Rb1 (10.Kg2 e5–+) 10...N8d7 (10...Qd7 11.e4–+) 11.Rb7 Nc5 12.Rb4 0–0 13.d4? (better is 13.Kg2–/+) 13...Nd3?? (better is 13...Qa5 14.Rb1 Qc3 15.dc5 Ne4–+ (15...Qc5?! 16.Qd1–+)) 14.cd3+– a5 15.Ra4 g6 16.Nh3 h6 17.Nf4 g5 18.Nfe2 g4 19.Qf4 Kh7 20.h3 gh3 21.Rh3 Ng8 22.g4 Qf6 23.Qg3 Qg6 24.Nf4 Qg5 25.Rh5 Qg7 26.g5 f6 27.g6 Kh8 28.Ne6 Qe7 29.Qg4 Rfe8 30.Qf5 Qe6+– 31.Qf4 Re7 32.Rh6 Nh6+= 33.Qh6 Kg8 34.Ne2 Qf5 35.Ng3 Qf3 36.Nh5?? Raa7 37.Ra3 Rab7 38.Kg1?? Rb1 39.Kh2 Qf2 40.Kh3 Rh1 41.Kg4 Rh4# 0–1. Jolilein – Master1, mySchach.de, 2005.

3.a4 c6 4.e3 e5 5.d4 e4 6.c4 Nf6 7.a5? (7.c5 b6=+) 7...a6 (better is 7...dc4!? 8.Bc4 cb5–/+) 8.b6=+ c5 (8...Bd6 9.Ba3 Bg4 10.f3 ef3 11.gf3=) 9.dc5 Bc5 10.cd5 Bg4 (10...Bb4 11.Bd2 Nd5 12.Bc4=) 11.f3+= ef3 12.gf3 Bh5 13.Nh3 (better is 13.e4+/–) 13...Qd5=+ 14.Qd5 Nd5 15.e4? (15.Rg1!? Be3 16.Be3 Ne3 17.Kd2 Nf1 18.Rf1–/+) 15...Nb4 (better is 15...Bf3 16.ed5 Bh1–+) 16.Na3?? (better is 16.Ke2 Nc2 17.Bb2–/+) 16...Bf3–+ 17.Rg1 Bg1 18.Ng1 Be4 19.Kd2 0–0 20.Bb2 N8c6 21.Ne2 Na5 22.Ng3 Nb3 23.Ke3 Na1 24.Ba1 Bg6 25.Kf4 Nd5 26.Kg5 Nb6 27.Nf5 Bf5 28.Kf5 Rfd8 29.Bg2 Rd7 30.Nc2 Re8 31.Nd4 Nd5 32.Bf3 Re1 33.Bb2 Ne3 34.Kf4 Re7 35.Bb7 Rb7 36.Bc3 Nd5 (37.Kf5 g6 38.Kg5 f6 39.Kg4 f5 40.Nf5 gf5 41.Kg5 Nc3–+) 0–1. breaker – jimmyjf, ChessWorld.net, 2004.

3.e3 a6 4.ba6 Na6 5.Bb2 e6 6.g3 (6.Nf3 Nf6=) 6...c5 (6...Nf6 7.Nf3=+) 7.Bg2 (7.Nf3 Nf6=+) 7...Bc6 (7...Nf6 8.Nf3=+) 8.Ne2 (8.Nf3 f6=+) 8...Qb6 (better is 8...Nf6=+) 9.Bc3? (9.Qc1 Ne7=+) 9...Nf6?? (better is 9...d4 10.0–0 dc3 11.Nbc3 Bg2 12.Kg2 Qc6 13.Kg1 Nf6–+) 10.0–0 (10.Bf6 gf6 11.Nbc3 d4–/+) 10...Ne4 (10...Be7 11.Be5=+) 11.d4 Nc3 12.Nbc3 cd4 13.Qd4 Qd4 14.Nd4 Bc5 15.Rad1 Nb4–/+ 16.Nc6 bc6 17.Rd2 0–0 18.a4–/+ Ra5 19.e4 Rfa8 20.ed5 cd5 21.Ra1 Nc6 22.h3 Bb4–+ 23.Rd3 Ne5 24.Re3 Nc4 25.Rf3 Bc3 26.Rc3 Ra4 27.Rd1 Ra1 28.Ra1 Ra1 29.Kh2 Kf8 30.h4 Ra2 31.Kh3 Na3 32.Bf1 Nc2–+ 33.Bd3 Nb4 34.Bh7 g6 35.Rc8 Kg7 36.Bg8 Rf2 37.Bf7 Rf7 38.Rb8 Nd3 39.Rb6 Nc5 40.Kg4 e5 41.Kg5 Ne4 42.Kg4 Nf2 43.Kg5 Rf5# 0–1. MasterofDisaster – wands, Caissa.com, 2004.

3.e3 e5 (--> 1.b4 e5 2.b5 d5 3.e3 Bd7).

3.a4 b6

4.Na3 c6 A) 5.Bb2 Nf6 (5...f6 6.f4 a6 7.e3 e6 8.Bd3 Nh6 9.Qh5 Nf7 10.Nf3 g6=) 6.Nf3 a6 7.e3 e6 8.Be2 Bd6 9.Ne5 0–0 10.0–0 Qe7=; B) 5.Nf3 Nf6 (5...e6 6.e3 a6 7.Bb2 Nf6 8.Be2 Bd6 9.c4 0–0 10.0–0 cb5=) 6.e3 e6 7.Bb2 a6 8.Be2 Bd6 9.0–0 Qe7 10.bc6 Nc6=; C) 5.e3 e5 (5...Qc7 6.Bb2 e5 7.Qh5 e4 8.bc6 Qc6 9.Nb5 Nf6 10.Bf6 Qf6=) 6.Bb2 f6 7.f4 ef4 8.ef4 Qe7 9.Qe2 Qe2 10.Ne2 a6=.

4.Na3 e6 A) 5.e3 Bd6 (5...a6 6.Bb2 Nf6 7.Nf3 Bd6 8.Be2 0–0 9.0–0 Qe7 10.c4 e5=) 6.Nf3 Nf6 7.Bb2 0–0 8.Be2 a6 9.0–0 Qe7 10.c4 e5=; B) 5.Bb2 Nf6 (5...a6 6.e3 Nf6 7.Nf3 Bd6 8.Be2 0–0 9.0–0 Qe7 10.c4 e5=) 6.Nf3 a6 7.e3 Bd6 8.Be2 0–0 9.0–0 Qe7 10.c4 e5=; C) 5.Nf3 a6 (5...Nf6 6.e3 Bd6 7.Bb2 0–0 8.Be2 a6 9.0–0 Qe7 10.c4 e5=) 6.Bb2 Nf6 7.e3 Bd6 8.Be2 0–0 9.0–0 Qe7 10.c4 e5=.

4.Na3 Nf6 A) 5.Nf3 e6 (5...a6 6.Bb2 e6 7.e3 Bd6 8.Be2 0–0 9.0–0 Qe7 10.c4 e5=) 6.e3 a6 7.Bb2 Bd6 8.Be2 0–0 9.0–0 Qe7 10.c4 e5=; B) 5.e3 e5 (5...a6 6.Nf3 e6 7.Be2 Bd6 8.Bb2 0–0 9.0–0 Qe7 10.c4 e5=) 6.Bb2 Bd6 7.Nf3 Qe7 8.Be2 a6 9.0–0 c6 10.Qc1 e4+=; C) 5.Bb2 e6 (5...a6 6.Nf3 e6 7.e3 Bd6 8.Be2 0–0 9.0–0 Qe7 10.c4 e5=) 6.Nf3 Bd6 7.e3 0–0 8.Be2 a6 9.0–0 Qe7 10.c4 e5=.

5.a5 ba5 (5...Bd6 6.ab6 cb6 7.Ba3 Bc7 8.Nf3 Nf6 9.Bb2 e4 10.Nd4 0–0=) 6.Bb2 a6 7.ba6 c6 8.Be5 Na6 9.Nf3 f6 10.Bf4 Ne7 =.

4.Bb2 a6 A) 5.Na3 Nf6 (5...e6 6.e3 Nf6 7.Nf3 Bd6 8.Be2 0–0 9.0–0 Qe7 10.c4 e5=) 6.Nf3 e6 7.e3 Bd6 8.Be2 0–0 9.0–0 c6 10.Ne5 Qe7=; B) 5.e3 Nf6 (5...c6 6.Nf3 Nf6 7.Ne5 e6 8.Qf3 Be7 9.Be2 0–0 10.0–0 Bd6=) 6.Nf3 e6 7.Bd3 c5 8.Nc3 c4 9.Be2 Bb4 10.ba6 Na6=; C) 5.ba6 Nf6 (5...Na6 6.a5 ba5 7.Ra5 c5 8.Bc3 Qb6 9.e3 Nf6 10.Nf3 Ne4=) 6.a5 ba5 7.Ra5 c6 8.Ra3 Na6 9.e3 Bc8 10.Ra1 e6=.

4.Bb2 c6 A) 5.Na3 Nf6 (5...e6 6.Nf3 Nf6 7.e3 a6 8.Be2 Bd6 9.Ne5 0–0 10.0–0 Qe7=) 6.Nf3 e6 7.e3 a6 8.Be2 Bd6 9.0–0 Qe7 10.bc6 Nc6=; B) 5.Nf3 cb5 (5...f6 6.e3 e5 7.Be2 Bd6 8.0–0 Ne7 9.Nc3 a6 10.e4 d4=) 6.Nc3 ba4 7.Nd5 Nf6 8.Nc3 b5 9.Qb1 a6 10.e4 Nc6+=; C) 5.e3 Nf6 (5...a6 6.Nf3 Nf6 7.Bd3 e6 8.0–0 Bd6 9.Ne5 Qc7 10.f4 0–0=) 6.Nf3 a6 7.Ne5 e6 8.Qf3 Be7 9.Be2 0–0 10.0–0 Bd6=.

5.Bb2 e4 (5...Bd6 6.Nf3 f6 7.c4 c6 8.d4 e4 9.Nfd2 Ne7 10.bc6 Bc6+=) 6.a5 c6 7.Bd4 ba5 8.Nc3 c5 9.Be5 Be6 10.d3 Nd7 = .

4.Bb2 e6 A) 5.e3 Nf6 (5...a6 6.Nf3 Nf6 7.Bd3 c5 8.Nc3 c4 9.Be2 Bb4 10.ba6 Na6=) 6.Nf3 Bd6 7.a5 ba5 8.Ne5 c5 9.Ng4 a6 10.b6 Ng4–/+; B) 5.Nf3 Nf6 (5...a6 6.e3 Nf6 7.Be2 Bd6 8.0–0 0–0 9.Ne5 ab5 10.ab5 Ra1=) 6.e3 Bd6 7.a5 ba5 8.Ne5 c5 9.Ng4 a6 10.b6 Ng4+=; C) 5.Nc3 Nf6 (5...a6 6.e4 d4 7.Nb1 Qh4 8.Bd3 e5 9.Nf3 Qf4 10.c3 c5=) 6.Nf3 Bd6 7.e3 0–0 8.a5 ba5 9.Be2 c6 10.Ba3 Bb4+=.

4.Bb2 Nf6 A) 5.Nf3 c6 (5...a6 6.e3 e6 7.Ne5 Bd6 8.ba6 Na6 9.Nd7 Qd7 10.a5 b5=) 6.e3 a6 7.Ne5 e6 8.Qf3 Be7 9.Be2 0–0 10.0–0 Bd6=; B) 5.Be5 Ng4 (5...a6 6.e3 e6 7.Nf3 Ng4 8.Bc3 c5 9.ba6 Na6 10.a5 f6=) 6.Bg3 a6 7.Nc3 d4 8.Nd5 e5 9.e4 de3 10.de3 Be6+=; C) 5.e3 a6 (5...c6 6.Nf3 a6 7.Bd3 e6 8.0–0 Bd6 9.Ne5 Qc7 10.f4 0–0=) 6.Nf3 e6 7.Ne5 Bd6 8.ba6 Na6 9.Nd7 Qd7 10.a5 b5=.

4.e3 a6 A) 5.Ba3 Nf6 (5...c5 6.Nf3 Nf6 7.Be2 e6 8.d4 ab5 9.ab5 Ra5 10.dc5 Bc5+=) 6.Nf3 c5 7.Be2 e6 8.d4 ab5 9.ab5 Ra5 10.Nfd2 c4+=; B) 5.ba6 Na6 (5...c6 6.d4 Na6 7.Bd2 Bf5 8.a5 e6 9.ab6 Qb6 10.c4 Nf6=) 6.a5 c5 7.ab6 Qb6 8.c4 e6 9.Nf3 Nf6 10.Ne5 Bd6=; C) 5.Bb2 c6 (5...Nf6 6.Nf3 e6 7.Ne5 Bd6 8.ba6 Na6 9.Nd7 Qd7 10.a5 b5=) 6.Nf3 Nf6 7.Ne5 e6 8.Qf3 Be7 9.Be2 0–0 10.0–0 Bd6=.

4.e3 c6 5.Qf3 (5.Bb2 a6 (5...Nf6 6.Nf3 a6 7.Bd3 e6 8.0–0 Bd6 9.Ne5 Qc7 10.f4 0–0=) 6.Nf3 Nf6 7.Be2 e6 8.Be5 ab5 9.ab5 Ra1 10.Ba1 cb5=; 5.Nf3 a6 (5...Nf6 6.Bb2 a6 7.Bd3 e6 8.0–0 Bd6 9.Ne5 Qc7 10.f4 0–0=) 6.Bb2 Nf6 7.Be2 e6 8.Be5 ab5 9.ab5 Ra1 10.Ba1 Be7=; 5.Be2 e5 (5...a6 6.Bb2 Nf6 7.Nf3 e6 8.Be5 ab5 9.ab5 Ra1 10.Ba1 Be7=) 6.Nf3 e4 7.Nd4 c5 8.Nb3 Qg5 9.g3 a6 10.Bb2 Nf6+=) 5...Nf6 (5...e5 6.Ba3 Ne7 7.Qh5 Qc7 8.Nf3 e4 9.Ne5 Be6 10.d4 c5=) 6.Nh3 (6.Bb2 a6 7.bc6 Bc6 8.a5 ba5 9.Bf6 gf6 10.Ne2 e5=) 6...Bg4 7.Qg3 Qd7 (7...Bf5 8.Bd3 Bd3 9.cd3 d4 10.e4 a6+=) 8.bc6 (8.Nc3 Bh3 9.gh3 a6 10.Bb2 e6+=) 8...Nc6 (8...Qc6?? 9.Bb5 Bd7 10.Bc6 Nc6 11.Nc3+–) 9.Bb5 (9.Nc3 Bf5 10.Ra2 Bh3–/+) 9...Ne4?? (9...a6 10.Bc6 Qc6 11.Nc3–/+) 10.Qf4?? (10.Bc6 Qc6 11.Qg4 Qc2+–) 10...Bf5?? (better is 10...Bh3 11.gh3 a6 12.Bc6 Qc6–/+) 11.Bc6 Qc6 12.Qf5 Qc2 13.0–0 e6 14.Qh5 Nf6 5.Qe5 Ng4 16.Qb2 Qc6 17.d4 Rb8 18.a5 b5 19.Bd2 f5 (19...Bd6!? 20.Rc1 Qa6 21.f4+–) 20.Nf4 g5 21.Nh5 a6 22.h3 Nh6 23.Qc3?? (23.e4 Be7 24.ed5 Qd5+–) 23...Qd6? (better is 23...Qc3 24.Nc3 Kf7+/–) 24.e4!+– fe4 (24...de4 25.Nf6 Double attack (25.Bg5 Discovered attack); 24...fe4 25.Nf6 Double attack (25.Bg5 Discovered attack)) 25.Bg5 Nf7 (25...b4 26.Qd2 Nf5+–) 26.Nf6 (26.Nf6 Kd8 27.Ne4 Ng5 28.Nd6 Bd6 29.Qc6+–) 1–0. LivingWater – wee harv, ChessWorld.net, 2011.

4.e3 e5 5.a5 ba5 (5...Bd6 6.ab6 cb6 7.Ba3 Bc7 8.Nf3 Nf6 9.Bb2 e4 10.Nd4 0–0=) 6.Bb2 a6 7.ba6 c6 8.Be5 Na6 9.Nf3 f6 10.Bf4 Ne7=.

4.e3 e5 5.d4 Nf6 (better is 5...a6=) 6.de5+/– Ng4. Bos,Joachim – Gil,Ludovic (1785), Aveugle op, 2006.

4.e3 e5 5.Nf3 e4 (5...Bd6 6.Ba3 Bg4 7.Bd6 Qd6 8.h3 Bf3 9.Qf3 Nf6 10.a5 ba5=) 6.Ne5 Bf5 7.d3 Bd6 8.f4 ef3 9.Nf3 a6 10.Bb2 Nf6 +=.

4.e3 Nf6 A) 5.Nf3 a6 (5...c6 6.Bb2 a6 7.Ne5 e6 8.Qf3 Be7 9.Be2 0–0 10.0–0 Bd6=) 6.Bb2 c6 7.Ne5 e6 8.Qf3 Be7 9.Be2 0–0 10.0–0 Bd6= ; B) 5.Be2 e5 (5...a6 6.Bb2 e6 7.Nf3 Bd6 8.0–0 0–0 9.Ne5 c5 10.f4 ab5=) 6.Bb2 e4 7.Nc3 Bb4 8.g4 h6 9.Nh3 h5 10.g5 Bh3+=; C) 5.Bb2 a6 (5...c6 6.Nf3 a6 7.Bd3 e6 8.0–0 Bd6 9.Ne5 Qc7 10.f4 0–0=) 6.Nf3 e6 7.Ne5 Bd6 8.ba6 Na6 9.Nd7 Qd7 10.a5 Nc5=.

2.b5 e5

(--> 1.b4 e5 2.b5 d5).

3.Ba3 Ba3 4.Na3 Nf6 (--> 1.b4 e5 2.Ba3 Nf6 3.b5 Ba3 4.Na3 d5).

3.Bb2 Bd6 4.Nc3 Nf6 5.e3 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6 5.Nc3).

3.Bb2 Nd7 4.e3 Bd6 5.c4 Ngf6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 Nbd7).

3.Bb2 Nd7 4.e3 f6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Nd7).

3.Bb2 Nd7 4.e3 Ngf6 5.c4 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 Nbd7).

3.Bb2 e4 4.e3 c6 5.c4 Nf6 6.a4 (--> 1.b4 e5 2.Bb2 e4 3.e3 Nf6 4.b5 d5 5.c4 c6 6.a4).

3.Bb2 e4 4.e3 Nf6 (--> 1.b4 e5 2.Bb2 e4 3.e3 Nf6 4.b5 d5).

3.e3 Bb4 4.Bb2 f6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Bb4).

3.e3 e4 4.Bb2 Nf6 (--> 1.b4 e5 2.Bb2 e4 3.e3 Nf6 4.b5 d5).

3.e3 Nf6 4.Bb2 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6).

3.e3 Nf6 4.Bb2 Bd6 5.c4 Qe7 6.Nf3 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Qe7 5.e3 Nf6 6.c4).

3.Bb2 f6

(--> 1.b4 e5 2.Bb2 f6 3.b5 d5).

4.e3 Be6 5.d4 e4 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 e4).

4.e3 Be6 5.Nf3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3).

2.b5 e6

3.a4 a5 4.e3 c6 5.c4 Nf6 6.Bb2 Be7 7.Nf3 dc4 8.Bc4 0–0 9.0–0 Bd7 10.Nc3 Qe8 11.d4 cb5 12.Nb5 Bb5 13.Bb5 Nc6 14.Rc1 Rc8 15.Nd2 Nd5 16.Nc4 Qd8 17.e4 Ndb4 18.Qg4 g6 (18...Nd3 19.d5 Nb2 20.dc6 bc6 21.Ba6= (worse is 21.Nb2 cb5 22.Rc8 Qc8–/+)) 19.e5 (19.Ne3!?+/–) 19...Nd3= 20.Rc2 Nb2 21.Nb2 (better is 21.Rb2!? Qd4 22.Qd4 Nd4 23.Na5=) 21...Qd4 22.Qe2 (better is 22.Qd4!? Nd4 23.Rc8 Rc8 24.Bd3–/+) 22...Qe5–+ 23.Qf3?? (better is 23.Qe5 Ne5 24.Rfc1 Rc2 25.Rc2–+) 23...Nd4 24.Qb7 Bd6 (better is 24...Rc2 25.Nc4 Qc5 26.Na5 Bd8–+) 25.f4 Qe3 26.Rcf2 Bf4 (26...Bc5 27.Kh1–+) 27.Nc4 (better is 27.Nd1 Qb3 28.Rb2 Be3 29.Kh1–+) 27...Rb8?? (27...Qc3 28.Qa6–+ (28.Rf4?? Ne2 29.Kh1 Nf4–+)) 28.Qe7? (better is 28.Ne3 Rb7 29.Rf4 Nb5 30.ab5 Rb5 31.Ra1=) 28...Nf5?? (28...Qe4 29.Kh1 A) 29...Nb5 30.Rf4 Qb7 31.Qb7 Rb7 32.Na5+/– (32.ab5?! Rb5 33.Nd6 Rb6 34.Nf7 Kg7=); B) 29...g5–+) 29.Ne3+/– Ne7 (29...Bh2!? 30.Kh2 Ne7+/–) 30.Rf4+– Rfd8 (30...f5 31.Rd4+–) 31.Rf7 Nf5 32.Ra7?? (better is 32.Nf5 Kf7 33.Nd4 Kg8 34.Nc6+– (34.Ne6?! Rd2+–)) 32...Ne3+= 33.Rff7 Nf5 (33...Rd1 34.Kf2 Nf5 35.g4+/–) 34.Rh7 (34.g4 Nd4 35.Rg7 Kh8 36.Rh7 Kg8 37.Rhg7 Kh8 38.Rg6 Nb5 39.ab5 Rb5 40.Re6 Rb2+/–) 34...g5 (34...Rd1!? 35.Kf2 Rbd8+=) 35.g4+/– Rd1 (35...Nd4 36.Rag7 Kf8 37.Rf7 Kg8 38.Rhg7 Kh8 39.Rg5+/–) 36.Kf2 Rbd8?? (better is 36...Nd6 37.Rag7 Kf8 38.Rg5 Ne4 39.Ke3 Re1 40.Kf4 Ng5 41.Rh8 Ke7 42.Rb8 Nh3 43.Kf3 Rb1+/–) 37.gf5+– (37.Ra5?? R8d2 (37...Kh7?! 38.gf5 ef5 39.Be2–+) 38.Be2 Nd4 (38...Kh7?! 39.gf5 ef5 40.Rf5–/+) 39.Rg5 Kh7–+) 37...R1d2 (37...R8d2 38.Ke3 Rd5 39.Rhg7 Kh8 40.f6 Re5 41.Kf3 Rf1 42.Bf1 Rf5 43.Ke3 Re5 44.Kd2 Rd5 45.Bd3 Rd8 46.Rh7 Kg8 47.Rag7 Kf8 48.Rh8#) 38.Be2 (38.Kg3 R8d3 39.Bd3 Rd3 40.Kg4 ef5 41.Kg5 Rc3 42.Rhg7 Kf8 43.Kg6 Rc6 44.Kh7 Rh6 45.Kh6 f4 46.Ra8#) 38...ef5 39.Rhg7 Kf8 (39...Kh8 40.Rge7 R2d4 41.Ra5 Rf8+–) 40.Rg5 (40.Raf7 Ke8 41.Rf5 R8d5 42.Rgg5 Rf5 43.Rf5 Ke7+–) 40...Rc8?? (better is 40...Re8 41.Rf5 Kg8 42.Rfa5 Ree2 43.Kf3 Rf2 44.Ke4 Rde2 45.Kd5 Rf5 46.Kc4 Rf4 47.Kd3 Rh2+–) 41.Rf5 Ke8 (41...Kg8 42.Raa5 Re8+–) 42.Rh5 Re2 43.Ke2 Rc2 1–0. Garcia Sanchez Navarro,M – Bento Chaves,JM, II Oliver Gonzalez Memorial, 2011.

3.a4 Qf6 4.c3 Bc5 (4...e5 5.d4+=) 5.Ba3?? (better is 5.Nf3=) 5…Qf2# (5...Bf2#) 0–1. Jaxk,Jack (2000) – Meier,Lukas (1880), remoteschach.de, 2006.

3.b6 a6 4.bc7=+ Qc7 5.e3 Nc6 6.Nc3 Bb4 7.Rb1 Nge7 8.a3 Ba5 9.Nf3 e5 10.e4 d4 11.Ne2=+ f5 12.Ng3 fe4 13.Ne4= Bg4 14.h3 Bh5 15.g4 Bg6 16.Nc5?? Bf7?? 17.Rb7+= Qd6 18.Ne4+/– Qd5 19.Qe2 0–0 20.Neg5 Ng6 21.c4?? Qd6?? 22.Ne4 Qd8+= 23.c5?? Nf4 24.Qd1–/+ Ne7 25.Qa4?? Bd5?? 26.Rd7= Qe8 27.Nfg5 Be4?? 28.Ne4+/– Bd8 29.Bc4+– Kh8 30.Nd6 Qg6 31.f3 Nd3+= 32.Kd1?? Nf2 33.Ke1 Nh1 34.Qb4 Rf3 35.Nf7?? Kg8 36.Rd8 Rd8 37.Ne5 Kh8 38.Ng6 Ng6 39.Qb6?? Re8–/+ 40.Kd1 d3 41.Bd3 Nf2 42.Kc2 Nd3 43.Qb7? Nge5–+ 44.Bb2 Ne1?? 45.Kb1 Rf1 46.Ka2 N5f3?? 47.Qg7# 1–0. Jolilein – dsa4@, mySchach.de, 2005.

3.b6 cb6 4.c3 b5 5.Qb3 a6 6.e3 Nc6 7.a4 ba4 8.Qa4 Bd7 9.Nf3 b5 10.Bb5=+ Qc8 11.Ba6?? Qc7–+ 12.c4?! Nb4 13.Qa5 Qa5 14.Ra5 Ra6 15.Rb5?? Bb5 16.cb5 Ra1 17.0–0 Rb1 18.Ba3 Rf1 19.Kf1 Nf6 20.b6 Nd7 21.b7 Na6 22.Bb2 Ndc5 23.Nd4 Nb7 24.f4 Bc5 25.Nb5 0–0 26.d4 Be7 27.Na7 Nb4 28.Nc8 Rc8 (29.Ba3 Na5 30.Bb4 Bb4–+) 0–1. Jolilein – Kaiservd, mySchach.de, 2005.

3.c3 b6 4.e3 g6 5.Nh3 Bg7 6.f4 Nf6 7.Ng5 0–0 8.h4 a6 9.h5 Nh5 10.Rh5 gh5 11.Qh5? h6–+ 12.Nf7?? Rf7 13.Qg6 Qf6 14.Qf6 Rf6 15.Bd3 ab5 16.Na3 b4 17.Nb5 bc3 18.Nc7 cd2 19.Bd2 Ra7 20.Nb5 Raf7 21.Rc1 Ba6 22.Bg6 Rg6 23.Nd6 Rd7 24.Ne8 Rg2 25.Bb4 Rg1 (26.Kd2 Rg3–+; better is 25...Ra2!? 26.Rc7–+) 0–1. solidsteel – arturi10, Live Game Caissa's Web, 2005.

3.d4 Bb4 4.Bd2 A) 4...Qe7 5.c4 (5.Nf3 Nf6 6.Nc3 0–0 7.e3 Bc3 8.Bc3 Ne4 9.Bd2 a6; 5.Nc3 Nf6 6.e3 Nbd7 7.Nf3 Ne4 8.Ne4 de4 9.Bb4 Qb4) 5...Nf6 6.Qb3 Bd2 7.Nd2 0–0 8.Ngf3 a6 9.e3 ab5; B) 4...a5 5.Nf3 (5.Nc3 Nf6 6.e3 c5 7.a3 Bc3 8.Bc3 Nbd7 9.Nf3 Ne4; 5.g3 Nf6 6.Nf3 0–0 7.Bg2 Nbd7 8.Nc3 Ne4 9.Ne4 de4) 5...Nf6 6.Nc3 0–0 7.e3 c5 8.dc5 Bc5 9.Bd3 Nbd7; C) 4...Be7 5.Nc3 (5.Nf3 Nf6 6.c4 dc4 7.Nc3 Nbd7 8.e3 Nb6 9.Ne5 0–0; 5.g3 a6 6.Nc3 ab5 7.Nb5 Nf6 8.Nf3 0–0 9.Bg2 Ne4; 5.e3 Nf6 6.Nf3 a6 7.Ne5 ab5 8.Bb5 c6 9.Bd3 Nbd7) 5...Nf6 6.Nf3 a6 7.e3 0–0 8.a4 Ne4 9.Bd3 Nd2; D) 4...Bd6 5.Nf3 (5.Nc3 Nf6 6.Nf3 0–0 7.g3 a6 8.a4 Ne4 9.Ne4 de4; 5.g3 Nf6 6.Nf3 c5 7.dc5 Bc5 8.Nc3 Ng4 9.e3 Nd7; 5.c4 dc4 6.Nf3 a6 7.Nc3 Nd7 8.e4 Nb6 9.a4 a5; 5.e3 Nf6 6.Nf3 0–0 7.c4 dc4 8.Bc4 a6 9.Nc3 ab5) 5...Nf6 6.Nc3 0–0 7.g3 a6 8.Bg2 ab5 9.Nb5 Nc6.

3.d4 c5 A) 4.e3 c4 (4...Bd6 5.Ba3 Nd7 6.Nf3 Ngf6 7.Bd3 Qc7=) 5.a4 a6 6.ba6 Ra6 7.e4 Bd7+=; B) 4.Nc3 Nf6 (4...Qa5 5.Bd2 cd4 6.Nd5 Qd8 7.Nb4 Bd7+=) 5.Nf3 a6 6.e3 c4 7.ba6 Na6+=.

3.d4 c6 A) 4.a4 a6 (4...Bd7 5.e3 a6 6.ba6 Na6 7.c4 dc4=; 4...Nf6 5.Nf3 Ne4 6.e3 a6 7.bc6 Nc6=) 5.Bf4 ab5 6.Bb8 Rb8 7.ab5 c5+=; B) 4.e3 Nf6 (4...Bd7 5.a4 a6 6.ba6 Na6 7.c4 dc4=) 5.Nf3 Bd7 6.a4 a6 7.bc6 Nc6+=.

3.d4 Bd7 4.e3 a6 (4...c6 5.a4 Nf6 6.Nf3 a6 7.bc6 Nc6=; 4...Nf6 5.Nf3 a6 6.ba6 Na6 7.c3 c5+=) 5.ba6 Na6 6.Nf3 Nf6 7.c3 c5 +=.

3.e3 Bd6 A) 4.Nf3 e5 (4...Nf6 5.d4 a6 6.c4 dc4 7.Bc4 0–0+=; 4...Nd7 5.d4 e5 6.c4 dc4 7.Bc4 e4=) 5.Bb2 Nd7 6.c4 Ngf6 7.cd5 Nd5+=; B) 4.Bb2 Nf6 (4...e5 5.Nf3 Nd7 6.c4 Ngf6 7.cd5 Nd5+=) 5.Nf3 Nbd7 6.Be2 e5 7.0–0 Qe7+=; C) 4.d4 a6 (4...c5 5.Ba3 Nd7 6.Nf3 Ngf6 7.Bd3 Qc7=) 5.c4 dc4 6.Bc4 Nf6 7.Nf3 0–0+=.

3.e3 e5 A) 4.Bb2 e4 (4...Nd7 5.Nf3 Bd6 6.c4 Ngf6 7.d4 e4+=; 4...Bd6 5.Nf3 Nd7 6.c4 Ngf6 7.cd5 Nd5+=) 5.c4 dc4 6.Bc4 Qg5 7.g3 Nd7+=; B) 4.d4 Nd7 (4...ed4 5.ed4 Nf6 6.Bd3 Bb4 7.Bd2 Bd6=; 4...Bd6 5.c4 Nf6 6.c5 Be7 7.de5 Ne4=; 4...Bb4 5.c3 Bd6 6.de5 Be5 7.Be2 Nf6=) 5.c4 Ngf6 6.cd5 Nd5 7.e4 N5f6=.

3.Nf3 Bd6 A) 4.e3 Nf6 (4...e5 5.Bb2 Nd7 6.c4 Ngf6 7.cd5 Nd5+=; 4...Nd7 5.c4 dc4 6.Bc4 e5 7.d4 e4=) 5.d4 a6 6.ba6 b6 7.Ba3 Ba6+=; B) 4.Ba3 Nf6 (4...e5 5.Bd6 Qd6 6.e3 Bg4 7.Be2 Nf6+=; 4...Ba3 5.Na3 e5 6.e3 Bg4 7.h3 Bf3+=) 5.Bd6 Qd6 6.e3 e5 7.Be2 Bg4+=; C) 4.d4 Nf6 (4...Nd7 5.e3 Ngf6 6.c4 a6 7.c5 Be7=; 4...a6 5.e3 Nf6 6.ba6 b6 7.Ba3 Ba6+=; 4...Bd7 5.e3 a6 6.ba6 Na6 7.c4 dc4=; 4...c6 5.e3 Nf6 6.c4 dc4 7.Bc4 0–0=) 5.e3 a6 6.ba6 b6 7.Ba3 Ba6+=.

3.a4 c5

4.a5 Nf6 5.Nf3 Nbd7 6.d3 Bd6 7.Ra4 b6 (7...0–0 8.e4+=) 8.Bd2 (8.a6 0–0+=) 8...Rb8 (8...a6!? 9.Na3 0–0–/+) 9.a6 Qe7 10.Rh4 (10.e4 0–0=) 10...e5 11.Nc3 e4 (11...h6 12.h3+=) 12.Ng5?? (better is 12.Nd5!? Nd5 13.Re4+=) 12...h6 (12...ed3 13.cd3 Ne5 14.Bf4–/+) 13.g3 (better is 13.de4!? d4 14.Nd5 Nd5 15.ed5+=) 13...0–0 Black gets strong initiative 14.de4 (14.Nh3 Ne5–/+) 14...hg5 15.Bg5 Qe5 (worse is 15...de4 16.Ne4 Be5 17.Bg2–/+) 16.Bd2 (16.Bf6 Nf6 (16...Qf6?! 17.Nd5 Qb2 18.e3+=) 17.Nd5 Nd5 18.ed5 Qc3 19.Qd2 Qa1 20.Qd1 Qa5 21.Qd2 Qb5–+) 16...d4 17.f4 (better is 17.Bf4 Qe7 18.Bd6 Qd6 19.Bg2–+) 17...Qe7 (17...dc3 18.fe5 cd2 19.Qd2 Be5 20.Bh3+=) 18.Nd5 (18.e5 dc3 19.Bc3 Ne5 20.fe5 Be5–+) 18...Nd5 (18...Qe4 19.Nf6 Nf6 20.Rg1–+) 19.ed5 Qe4 20.Rg1 Qd5 21.Bg2 Qc4 22.Be4 Nf6 (22...Qb5?? 23.Bh7 Kh8 24.Bd3 Kg8 25.Bb5+–) 23.Bd3 Qd5 24.g4 (24.c4 Qe6–+) 24...c4 25.g5 Ne4 (25...cd3?! 26.gf6 g6 27.ed3 Re8 28.Kf1–+) 26.e3 (26.Be4 Qe4 27.e3 g6–+) 26...g6 (26...de3 27.Be3 cd3 28.Qd3 Qd3 29.cd3–+) 27.Qa1 (27.Be4 Qe4 28.Kf2–+) 27...cd3 28.cd3 Nd2 29.Kd2 Bb4 30.Ke2 Bc3 31.Qb1 Bd7 32.f5 (32.e4 Rfe8–+) 32...Qf5 33.Rf4 (33.e4 Rfe8–+) 33...Qb5 (33...Qh3!? 34.Rg3 Qh2 35.Kf3 de3 36.Qg1 Qh5 37.Rgg4–+) 34.e4 (34.Qb5 Bb5 35.Rb1 Ba6–+) 34...Qb1 35.Rb1 Kg7 36.h4 f6 37.gf6 Rf6 38.Rf6 Kf6 39.Rg1 (39.Rf1 Kg7 40.Kd1 b5–+) 39...Rh8 40.Rf1 Ke5 41.Rg1 (41.Rf7 Ke6 42.Rg7 Rh4–+) 41...Rh4 42.Rg6 Bb5 (better is 42...Bc8–+) 43.Rg5 Kf4 44.Rb5 Rh2 45.Kf1 Ke3 46.Kg1 Re2 47.e5 (47.Rd5 Ra2–+) 47...Kd3 48.Kf1 (48.e6 Kc2 49.Rb6 d3–+) 48...Re1 49.Kf2 Kc2 50.Rd5 d3 51.Rd7 d2 52.Rc7 0–1. Langlotz,Peter – Mendel,Markus, Baden–ch AT3, 2004.

4.Bb2 b6 5.g3 (5.Nf3 a6=) 5...Bb7 (5...Nf6 6.a5+=) 6.Bg2= Nd7 7.d3 (7.c4 a6=) 7...Ngf6 8.c4 Qc7 (8...Bd6 9.cd5 0–0 10.a5+=) 9.Nf3 (9.cd5 ed5 10.Nf3 Bd6+=) 9...Bd6 (9...dc4 10.Bf6 Nf6 11.dc4+=) 10.0–0 (10.cd5 Bd5 11.0–0 Ne5=) 10...0–0 11.Qc2 (11.a5 ba5 12.Qa4 a6 13.Qa5 Qa5 14.Ra5 ab5 15.Rb5 Bc6+=) 11...Rfe8 (11...a6 12.cd5 ed5 13.Na3=) 12.Nbd2 (12.a5 ba5 13.Nc3 a6+=) 12...h6 (12...a6 13.ba6 Ra6 14.e3+=) 13.Rfe1 (13.cd5 ed5 14.e3 a6=) 13...Rac8 (13...a6 14.ba6 Ra6 15.Rab1=) 14.e4 (14.cd5 ed5 (14...Bd5? 15.e4+–) 15.Rac1 Re7=) 14...d4 15.Re2 (15.a5 ba5 16.Nb3 e5+=) 15...Ng4 (15...Ne5 16.Ne5 Be5 17.f4 Bf4 18.gf4+/–) 16.h3 (16.a5 ba5 17.Nb3 a6 18.Na5 Ba8+/–) 16...Ngf6 (16...Nge5 17.Bc1=) 17.Rae1 (17.a5 ba5 18.Nb3 e5=) 17...e5 (17...Ne5 18.Ne5 Be5 19.f4 Bf4 20.gf4 Qf4 21.e5 Bg2 22.Rg2+= (22.Kg2?! Nh5+=; worse is 22.ef6 Qg3+=)) 18.Nh4 (18.Bc1 Rcd8=) 18...g6 (18...a6 19.ba6 Ba6 20.Nf5=) 19.Ndf3 (19.Nhf3 Rcd8=) 19...Kh7 (19...Rcd8 20.Bc1 Kg7 21.Qd2=) 20.Qd2 (20.Bc1 Rcd8=) 20...Rh8 (20...Rcd8 21.Bc1 Bf8 22.Qc2=) 21.Bc1 Bf8 22.Nh2 (22.Qc2 Bg7=) 22...Bg7 23.g4 (23.N2f3 Rcd8=) 23...Rce8 (23...a6 24.ba6 Ba6 25.N4f3+=) 24.N2f3 White intends g5 24...Nf8 25.g5 Nh5 (25...hg5!? 26.Ng5 Kg8+=) 26.gh6+= Bf6 27.Ng5 Bg5 (27...Kg8 28.Ngf3=) 28.Qg5 Ne6 29.Qd2 (better is 29.Qg4=) 29...Nhf4–/+ 30.Qd1 (30.Nf3 Ng2 31.Kg2 Nf4 32.Kg1 Ne2 33.Re2 f6–+) 30...Ne2 31.Qe2 Qd8 (31...Nf4 32.Bf4 ef4 33.Nf3–/+) 32.Qf3 Threatening mate: Qxf7 32...Qe7 33.Ng6? (better is 33.Bd2–/+) 33...fg6–+ 34.Qg4 (34.Qg3 Qf6–+) 34...Bc8 (better is 34...Ref8–+) 35.Bg5 (35.Qg3 Qf6 36.Qf3–+) 35...Ng5 36.Qd1 (36.Qg3 Ref8–+) 36...Nh3 37.Bh3 Bh3 38.Qf3 Qg5 39.Kh2 Be6 40.Rg1 Qh6 41.Kg2 Qg5 (41...Kg7 42.Qg3–+) 42.Kf1 (42.Qg3 Bg4–+) 42...Qf4 (42...Qd2 43.Qg3 g5 44.Rh1 Kg6 45.Rh8 Rh8 46.Kg2–+) 43.Qd1 (43.Qf4 ef4 44.Ke2 Kg7–+) 43...Ref8 44.Qe2 (44.Qc2 Qh2 45.Rg3 Qg3–+) 44...Kg7 (44...Qc1 45.Qe1 Bh3 46.Ke2 Qc2 47.Qd2 Rf2 48.Kf2 Qd2 49.Kg3 Kg7 50.a5 Qf4) 45.Qa2 (45.Qc2–+) 45...Bh3 46.Ke2 Qf2 0–1. Rey Hermida,J J – Sanz Lopez,R, Pena San Jose, 1997.

4.Bb2 Nf6 5.Nf3 =+.

4.Nf3 Bd6 +=.

3.a4 Nf6

4.e3 c5 5.Bb2 d4 6.c4 e5=+ 7.d3 Bg4 8.f3 Bh5 9.e4 Nbd7 10.a5 Be7 11.Ne2 0–0 12.g4 Bg6 13.Ng3 Ne8 14.Nd2 Nd6 15.Qe2 b6 16.Nb3 h6 17.a6 Kh7 18.Bc1 Bh4 19.Bd2 Bg5 20.0–0–0 Qe7 21.Nf5 Qe6 22.h4 Bd2= 23.Nd2 Rac8?? 24.Nd6+– Qd6 25.h5 Nf6 26.hg6 fg6 27.g5 Nh5 28.gh6 gh6 29.Rh5! gh5 30.Bh3 Rc7 31.Bf5 Kh8 32.f4! ef4 33.Qh5 Rg7? 34.Rh1 Rf6 35.Nf3 Kg8 36.e5 Qe7 37.ef6 Qe3 38.Nd2 Rg2 39.Rd1 Rg5 40.Qh6 f3 41.Qh7 Kf8 42.Bg6 Rg6 43.Qg6 f2 44.Qg7 Ke8 45.f7 Kd7 46.f8Q Ke6 47.Qgf7 Ke5 48.Q8e7 1–0. blackiwhite (1760) – jackone (1810), kurnik, 2011.

4.Nf3 a6 5.Ba3 +=.

4.Nf3 c5 5.Bb2= Be7 6.Be5 (6.e3 Nbd7+=) 6...0–0 (6...Nbd7 7.Bb2–/+) 7.e3 Nbd7 8.Bf4 (8.Bb2 Bd6+=) 8...b6 (8...Ne4 9.a5+=) 9.Be2+= Bb7 10.0–0 Re8 (10...Nh5 11.Be5+=) 11.Nc3 (11.d4 a6=) 11...Nf8 (11...Nh5 12.Be5+=) 12.a5 (12.Ne5 Bd6=) 12...ba5 13.Ne5 Ng6 (13...a6 14.Na4=) 14.Ng6 hg6 (14...fg6 15.d4=) 15.Be5 (15.d4!?=) 15...Nd7+= 16.Bf4 (16.Bg3 a6+=) 16...e5 (16...a6 17.d4+=) 17.Bg3= Bf6 (17...d4 18.Na4+=) 18.e4 (18.f3 c4=) 18...d4 (18...de4 19.Re1–/+) 19.Nd5+= Bd5 20.ed5 Nb6 21.c4 (21.Ra5 Nd5 22.Ra6 Nb4+=) 21...dc3 (21...a4 22.Qb1–/+) 22.dc3+= Nc8 (22...Nd5!? 23.Qc2 e4+=) 23.Qd2+= Nd6 24.Rfd1 (24.c4+=) 24...a4 (better is 24...c4!?=) 25.Ra4+/– Qb6 (25...Bg5 26.Qa2+/–) 26.Ra6+– Qb7?? (better is 26...Qb8+–) 27.Rd6 (27.Rd6 Rac8 28.c4+–) 1–0. b4_player – opponent, kurnik, 2008.

3.Bb2

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

3.Bb2 b6 4.e3 Nd7 5.d3 Ngf6 6.Nd2 Bb7 7.a4 c5 8.Be2 Bd6 9.c4 0–0 10.Ngf3 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4 b6 9.d3 Bb7 10.Nbd2).

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

3.Bb2 c6 4.a4 Bd7 5.e3 Nf6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 Bd7).

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

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

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

3.Bb2 Nf6 4.e3 c5 5.Nf3 Nbd7 6.c4 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

3.Bb2 Nf6 4.e3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6).

3.Bb2 Nf6 4.e3 Nbd7 5.Nf3 Bd6 6.d4 c5 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.d4).

3.d4 a6

4.ba6 b6 (4...Na6 5.Bf4 Ne7 6.Nf3 Ng6 7.Bg3 Be7+=) 5.Nf3 Ba6 6.Bg5 Be7 7.Be7 Ne7 +=.

4.Nc3 ab5 5.Nb5 Nf6 6.a3 c6 7.Nc3 Bb4 8.Bb2 Ba5 9.e3 Ne4.

4.Nc3 Nf6 5.ba6 Bb4 6.Bd2 Ra6 7.e3 Ra5 8.Nf3 Nc6 9.Bd3 0–0.

4.e3 ab5 5.Bb5 (5.Bd3 Bd6 6.Nf3 Nf6 7.0–0 0–0 8.Bb2 Nbd7 9.Nbd2 c6; 5.Nf3 c6 6.Bd3 Nf6 7.0–0 Nbd7 8.Nbd2 Be7 9.e4 de4) 5...Bd7 6.Bd3 Nf6 7.Nf3 c5 8.0–0 c4 9.Be2 Nc6.

4.e3 Bd7 5.ba6 Na6 6.Nf3 Nf6 7.Nbd2 Bb4 +=.

4.e3 Bd7 5.Nc3 ab5 6.Nb5 Nf6 7.Bd2 Nc6 8.Nf3 Ne4 9.Bd3 Nb4.

4.e3 Bd7 5.Bd3 ab5 6.Nf3 Nf6 7.0–0 c5 8.dc5 Bc5 9.Bb2 0–0.

4.e3 Bd7 5.Be2 ab5 6.Nf3 Nf6 7.0–0 b4 8.Qd3 c5 9.dc5 Nc6.

4.e3 Bd7 5.Nf3 ab5 6.Be2 Nf6 7.Bb2 Bd6 8.0–0 b4 9.Qd3 Nc6.

4.e3 Nf6 5.Nc3 c6 6.ba6 Na6 7.Bd3 Nb4 8.Nf3 Bd6 9.Ne5 Nd7.

4.e3 Nf6 5.Bd2 c6 6.ba6 Na6 7.Nf3 Nb4 8.a3 Bd6 9.Bc3 Na6.

4.e3 Nf6 5.Bd3 ab5 6.Nf3 c5 7.Bb5 Bd7 8.Bd7 Nbd7 9.Nc3 cd4.

4.e3 Nf6 5.Nf3 ab5 6.Bb5 Bd7 7.Qe2 Nc6 8.Nc3 Bd6 9.0–0 0–0.

4.e3 Nf6 5.Nf3 Bd7 6.ba6 Na6 7.c3 c5 +=.

4.Nf3 A) 4...ab5 5.Bg5 (5.Bf4 Nf6 6.e3 Bd7 7.Bd3 Nc6 8.0–0 b4 9.Nbd2 Bd6; 5.e3 Bd7 6.Be2 Nf6 7.0–0 b4 8.Qd3 c5 9.dc5 Nc6; 5.Nbd2 Nf6 6.e3 Bd7 7.Bb2 Bd6 8.Ne5 0–0 9.Bd3 b4; 5.Bb2 Nf6 6.e3 c6 7.Bd3 Nbd7 8.Nbd2 Bd6 9.0–0 0–0) 5...Nf6 6.e3 Bd7 7.Nbd2 h6 8.Bf4 Bb4 9.Rb1 Qe7; B) 4...Bd6 5.c4 (5.e3 Nf6 6.c4 dc4 7.Bc4 ab5 8.Bb5 Bd7 9.Nc3 0–0; 5.Nbd2 Nf6 6.c4 ab5 7.c5 Be7 8.e3 b4 9.Bd3 Nc6; 5.Nc3 Nf6 6.g3 c6 7.ba6 Na6 8.Bd2 0–0 9.Bg2 Bd7; 5.a4 ab5 6.Nc3 c6 7.Bd2 b4 8.Na2 Na6 9.Rb1 Nf6) 5...dc4 6.Nc3 Nf6 7.Qa4 0–0 8.e4 Nfd7 9.Qc4 ab5; C) 4...Bd7 5.ba6 (5.g3 ab5 6.Bg2 Nf6 7.Bf4 Bb4 8.c3 Be7 9.0–0 Nc6; 5.Bb2 ab5 6.e3 Nf6 7.Bd3 c5 8.dc5 Bc5 9.0–0 0–0; 5.a3 ab5 6.Bb2 Nf6 7.Nc3 Nc6 8.Nb5 Na7 9.Na7 Ra7; 5.Bg5 Nf6 6.ba6 Na6 7.Nbd2 h6 8.Bh4 Bd6 9.Ne5 g5) 5...Na6 6.Nc3 Nf6 7.Ne5 Bb4 8.Bd2 0–0 9.Rb1 c5; D) 4...Nf6 5.e3 (5.ba6 Na6 6.Nc3 Ne4 7.Bd2 Bb4 8.Ne4 de4 9.c3 Be7; 5.Nc3 ab5 6.Bg5 Bd7 7.a3 Ba3 8.e3 c6 9.Bd3 h6) 5...Bd7 6.Bd3 ab5 7.0–0 c5 8.dc5 Bc5 9.Nbd2 Nc6.

3.d4 Bd6

4.Nc3 A) 4...a6 5.Nf3 (5.Bd2 Nf6 6.Nf3 0–0 7.e3 ab5 8.Bb5 Bd7 9.Bd3 Nc6; 5.g3 c6 6.ba6 Na6 7.Nf3 Qa5 8.Qd2 Nf6 9.a3 Nc7; 5.a4 Nf6 6.Nf3 0–0 7.g3 Ne4 8.Ne4 de4 9.Nd2 ab5; 5.e4 Bb4 6.Nge2 ab5 7.ed5 Nf6 8.de6 Be6 9.a3 0–0) 5...Nf6 6.g3 c6 7.ba6 Na6 8.Bd2 0–0 9.Bg2 Bd7; B) 4...Nf6 5.e3 (5.Nf3 a6 6.g3 c6 7.ba6 Na6 8.Bd2 0–0 9.Bg2 Bd7; 5.g3 c6 6.Bd2 a6 7.a4 0–0 8.Nf3 Bd7 9.e3 Bb4; 5.Bb2 0–0 6.Nf3 a6 7.e3 ab5 8.Nb5 Bb4 9.Bc3 Be7) 5...a6 6.Bd2 0–0 7.Nf3 ab5 8.Bb5 Bd7 9.Bd3 Nc6.

4.e3 A) 4...a6 5.c4 (5.Nf3 Nf6 6.c4 dc4 7.Bc4 ab5 8.Bb5 Nc6 9.Nc3 0–0; 5.Nd2 Nf6 6.Ngf3 ab5 7.Bb5 Bd7 8.c4 0–0 9.Bd7 Nbd7; 5.Bd3 ab5 6.Nf3 Nf6 7.0–0 c6 8.Nbd2 Na6 9.c3 0–0; 5.Nc3 c6 6.ba6 Na6 7.Nf3 Nf6 8.Ne5 Nd7 9.Nf3 0–0) 5...dc4 6.Bc4 ab5 7.Bb5 Nc6 8.Nf3 Nf6 9.0–0 0–0; B) 4...Nd7 5.Nf3 (5.c4 dc4 6.Bc4 Nb6 7.Bd3 Nf6 8.Nc3 Nbd5 9.Nd5 ed5; 5.Nc3 Ngf6 6.Nf3 0–0 7.Be2 e5 8.de5 Ne5 9.Bb2 Nf3; 5.Bb2 Ngf6 6.Nf3 0–0 7.Nc3 e5 8.de5 Ne5 9.Be2 Nf3) 5...Ngf6 6.Nc3 0–0 7.Be2 e5 8.de5 Ne5 9.0–0 Nf3; C) 4...c6 5.Nf3 (5.c4 Nf6 6.c5 Bc7 7.Nc3 0–0 8.Nf3 Ne4 9.Bb2 Nd7) 5...Nf6 6.c4 dc4 7.Bc4 cb5 8.Bb5 Bd7 9.Bd3 Nc6; D) 4...Nf6 5.c4 (5.Nc3 a6 6.Bd2 0–0 7.Nf3 ab5 8.Bb5 Nc6 9.0–0 Bd7; 5.Nf3 a6 6.c4 dc4 7.Bc4 ab5 8.Bb5 Bd7 9.Nc3 0–0) 5...0–0 6.c5 Be7 7.Nf3 b6 8.cb6 ab6 9.Nc3 Ne4.

4.Nf3 A) 4...Nf6 5.Nc3 (5.e3 0–0 6.c4 dc4 7.Bc4 a6 8.Nc3 ab5 9.Nb5 Nc6; 5.g3 a6 6.Nc3 c6 7.ba6 Na6 8.Bd2 0–0 9.Bg2 h6; 5.Qd3 a6 6.Nc3 0–0 7.g4 c6 8.g5 Nfd7 9.bc6 Nc6; 5.Ba3 0–0 6.Qd3 Nbd7 7.Nbd2 a6 8.Bd6 cd6 9.e3 e5) 5...a6 6.Bd2 0–0 7.e3 ab5 8.Bb5 Nc6 9.0–0 Bd7; B) 4...Nd7 5.g3 (5.Nc3 Ngf6 6.g3 Ne4 7.Ne4 de4 8.Nd2 Nf6 9.c3 a6; 5.c4 dc4 6.Nbd2 c3 7.Nb1 Ngf6 8.Nc3 0–0 9.Qb3 e5) 5...Ngf6 6.Nc3 Ne4 7.Ne4 de4 8.Ng5 Nf6 9.Bg2 Bb4; C) 4...a6 5.Nc3 (5.Qd3 Nf6 6.Nc3 0–0 7.Rb1 Nbd7 8.g3 e5 9.Ne5 Ne5; 5.ba6 Na6 6.Nc3 Nf6 7.g3 Bd7 8.Bg2 0–0 9.0–0 c5; 5.Bg5 Nf6 6.Nc3 h6 7.Bd2 0–0 8.e3 ab5 9.Nb5 Nc6; 5.g3 ab5 6.Nc3 c6 7.Qd3 Nf6 8.Bg2 0–0 9.e4 Bb4) 5...Nf6 6.Bd2 0–0 7.g3 Ne4 8.Bg2 Nc3 9.Bc3 ab5.

4.g3 A) 4...Nf6 5.Nc3 (5.Nf3 a6 6.Nc3 c6 7.ba6 Na6 8.Bd2 0–0 9.Bg2 Bd7; 5.Bg2 c6 6.Nf3 cb5 7.Nc3 a6 8.0–0 Nc6 9.Bg5 0–0) 5...c6 6.Bd2 a6 7.a4 0–0 8.Nf3 Bd7 9.e3 Bb4; B) 4...c6 5.Nc3 (5.Nf3 cb5 6.Bg2 Nc6 7.Nc3 a6 8.0–0 Nf6 9.Bg5 0–0) 5...cb5 6.Nf3 Nf6 7.a4 ba4 8.Bh3 0–0 9.0–0 Nc6; C) 4...a6 5.Nc3 (5.Nh3 ab5 6.Bg2 Nf6 7.Nc3 c6 8.0–0 b4 9.Nb1 Nbd7) 5...c6 6.ba6 Na6 7.Nf3 Qa5 8.Qd2 Nf6 9.a3 Nc7.

3.d4 Nd7

4.Nc3 A) 4...Ngf6 5.Nf3 (5.Qd3 Bd6 6.Nf3 0–0 7.e3 e5 8.de5 Ne5 9.Ne5 Be5) 5...Bb4 6.Bd2 0–0 7.e3 Bd6 8.Be2 e5 9.0–0 e4; B) 4...a6 5.Bf4 (5.e3 ab5 6.Bb5 c6 7.Bd3 Ngf6 8.Nf3 Bd6 9.0–0 0–0; 5.ba6 Ra6 6.Nf3 Ngf6 7.Bd2 Bb4 8.Rb1 Bc3 9.Bc3 Ne4; 5.e4 de4 6.Ne4 Ngf6 7.Nf6 Nf6 8.Nf3 Ne4 9.Bd2 ab5) 5...Ngf6 6.Qb1 Nh5 7.Bd2 ab5 8.Qb5 Bd6 9.Nf3 0–0; C) 4...h6 5.g3 (5.Nf3 Ngf6 6.e3 Bd6 7.Be2 0–0 8.0–0 b6 9.Bb2 Bb7; 5.Qd3 Ngf6 6.Nf3 Bd6 7.g3 e5 8.de5 Ne5 9.Ne5 Be5; 5.e3 Bb4 6.Bd2 Ngf6 7.Nf3 0–0 8.Bd3 Re8 9.Qb1 Bd6) 5...Ngf6 6.Nf3 a6 7.ba6 Ra6 8.Bg2 Bb4 9.Bd2 0–0; D) 4...Bb4 5.Bd2 (5.Qd3 Ngf6 6.Bd2 Nb6 7.Nf3 Nc4 8.Rb1 Qe7 9.Bg5 Bd7) 5...Ngf6 6.Nf3 0–0 7.e3 Bd6 8.Bd3 e5 9.Ne5 Ne5.

4.Bd2 Ngf6 (4...Bd6 5.Nc3 Ngf6 6.g3 0–0 7.Bg2 Nb6 8.Nf3 Nc4 9.0–0 h6) 5.Nf3 (5.Nc3 Bd6 6.g3 e5 7.Bg2 0–0 8.Nd5 a6 9.Nf6 Qf6; 5.a4 e5 6.de5 Ne5 7.Nf3 Bd6 8.Nc3 0–0 9.Bg5 Re8) 5...Bd6 6.Nc3 0–0 7.g3 e5 8.de5 Ne5 9.Bg2 Nf3.

4.Qd3 A) 4...a6 5.ba6 (5.Nc3 ab5 6.Nb5 c6 7.Nc3 Ngf6 8.Nf3 Bb4 9.Rb1 Bc3) 5...b6 6.a7 Ra7 7.Nf3 Ngf6 8.c4 Ba6 9.Na3 Bb4; B) 4...Ngf6 5.Nf3 (5.Nc3 Bd6 6.Nf3 0–0 7.Bg5 h6 8.Bh4 Qe8 9.Rb1 a6; 5.Nh3 Bd6 6.g3 0–0 7.Bg2 e5 8.0–0 ed4 9.Ba3 Ne5) 5...a6 6.Na3 Ne4 7.Rb1 Be7 8.Nd2 Nd6 9.e4 ab5.

4.e3 A) 4...Bb4 5.Bd2 (5.c3 Bd6 6.Nf3 Ngf6 7.c4 dc4 8.Bc4 Nb6 9.Bd3 Nbd5) 5...Bd6 6.Nf3 e5 7.c4 e4 8.c5 Be7 9.Ne5 Ne5; B) 4...Ngf6 5.Nf3 (5.Nc3 Bb4 6.Bd2 0–0 7.Nf3 Bd6 8.Bd3 e5 9.de5 Ne5; 5.Nh3 a6 6.ba6 b6 7.Nf4 g5 8.Nd3 Ba6 9.Nc3 Bd6) 5...Ne4 6.Bd3 Ndf6 7.0–0 Bd6 8.Bb2 0–0 9.Nbd2 Nd2; C) 4...a6 5.Nf3 (5.Nc3 ab5 6.Bb5 Ngf6 7.Rb1 c6 8.Bd3 b5 9.Nf3 b4; 5.ba6 b6 6.c4 dc4 7.Bc4 Ba6 8.Ba6 Ra6 9.Nf3 Ngf6) 5...ab5 6.Bb5 Ngf6 7.Nc3 Ne4 8.Ne4 de4 9.Bd7 Bd7; D) 4...Nh6 5.Nf3 (5.Nc3 Bb4 6.Bd2 Nf5 7.Nf3 0–0 8.Bd3 Qf6 9.0–0 Bd6; 5.c4 dc4 6.Bc4 Nb6 7.Bd3 Qg5 8.g3 Ng4 9.Nf3 Qh6) 5...Nf5 6.Bd3 Bd6 7.Nc3 Qf6 8.Bb2 0–0 9.0–0 Nb6; E) 4...Bd6 5.Nf3 (5.c4 Ngf6 6.Nf3 0–0 7.c5 Be7 8.Bd3 Ne4 9.Nbd2 Ndf6; 5.Nc3 Ngf6 6.Nf3 0–0 7.Be2 e5 8.de5 Ne5 9.Bb2 Nf3; 5.Bb2 Ngf6 6.Nc3 c5 7.bc6 bc6 8.Nf3 Rb8 9.Qc1 0–0; 5.Bd2 Ngf6 6.Nf3 e5 7.de5 Ne5 8.Be2 0–0 9.Nc3 Nf3) 5...Ngf6 6.Nc3 e5 7.de5 Ne5 8.Be2 Nf3 9.Bf3 Be5.

4.Nf3 A) 4...Ngf6 5.e3 (5.Bd2 Bd6 6.Nc3 0–0 7.g3 e5 8.de5 Ne5 9.Bg2 Nf3; 5.Nc3 a6 6.e3 ab5 7.Bb5 Bb4 8.Bd2 c6 9.Bd3 Qa5; 5.Qd3 a6 6.Nc3 ab5 7.Qb5 c6 8.Qb3 Bd6 9.g3 0–0) 5...Bd6 6.Nc3 e5 7.de5 Ne5 8.Be2 0–0 9.0–0 Nf3; B) 4...Bd6 5.Nc3 (5.g3 Ngf6 6.Nc3 Ne4 7.Ne4 de4 8.Nd2 Nf6 9.Bg2 Bb4; 5.c4 dc4 6.Nbd2 c3 7.Ne4 Ngf6 8.Nc3 0–0 9.Qb3 a6) 5...Ngf6 6.g3 Nb6 7.Bg2 0–0 8.0–0 Nc4 9.Qd3 Bd7; C) 4...a6 5.Nc3 (5.ba6 Ra6 6.Nc3 Ngf6 7.Bd2 Bb4 8.Rb1 Bc3 9.Bc3 Ne4; 5.e3 ab5 6.Bb5 Ngf6 7.0–0 Bd6 8.Nc3 c6 9.Bd3 0–0; 5.Bf4 ab5 6.e3 c6 7.Bd3 Ngf6 8.0–0 Be7 9.Nbd2 Nh5) 5...ab5 6.Nb5 c6 7.Nc3 Ngf6 8.Qd3 Bd6 9.g3 b5.

3.d4 Nf6

4.Nc3 a6 5.ba6 (5.e3 c6 6.ba6 Na6 7.Bd3 Nb4 8.Nf3 Bd6 9.Ne5 Nd7; 5.Bf4 c6 6.Qd3 ab5 7.Nf3 Nbd7 8.g3 b4 9.Nb1 Ne4; 5.Rb1 ab5 6.Nb5 c6 7.Nc3 Bd6 8.g3 b5 9.a3 Qa5) 5...Na6 6.Bd2 Be7 7.Nf3 0–0 8.g3 c5 9.Bh3 Qb6.

4.Bd2 a6 5.ba6 (5.e3 ab5 6.Bb5 Bd7 7.Nc3 Bb5 8.Nb5 c6 9.Nc3 Nbd7) 5...Na6 6.Nf3 Bd6 7.Nc3 0–0 8.g3 Ne4 9.a4 Bb4.

4.Qd3 a6 5.Bg5 (5.Nf3 ab5 6.Qb5 Nc6 7.Nc3 Bb4 8.Bd2 0–0 9.Rb1 Qe7; 5.Nc3 ab5 6.Nb5 c6 7.Nc3 Na6 8.a3 Bd6 9.Bb2 0–0; 5.Bf4 ab5 6.Nf3 Nc6 7.Ne5 Bd7 8.Nc3 Bb4 9.Rb1 Ne4; 5.Ba3 ab5 6.Bf8 Kf8 7.Qb5 Nc6 8.Nf3 g6 9.Nc3 Kg7) 5...ab5 6.Nf3 Bd7 7.Nc3 Nc6 8.Ne5 Bb4 9.Rb1 Ra2.

4.e3 a6 5.Nc3 c6 6.Bd3 ab5 7.Nf3 Bd6 8.0–0 Nbd7 9.Bb2 0–0.

4.e3 a6 5.Nd2 Bd7 6.Ngf3 ab5 7.Bd3 Bd6 8.e4 de4 9.Ne4 Ne4.

4.e3 a6 5.Nf3 Bd6 6.Nc3 c6 7.bc6 Nc6 8.Bd3 0–0 9.0–0 b5.

4.e3 a6 5.Nf3 Bd7 6.ba6 Na6 7.c3 c5 +=.

4.e3 c5 5.dc5 Bc5 6.Bb2 0–0 7.Nf3 a6 +=.

4.e3 c6 5.Nf3 (5.Bd3 a6 6.bc6 Nc6 7.Nf3 Bb4 8.Nbd2 0–0 9.0–0 Bd6; 5.Nh3 Bd7 6.c4 dc4 7.Bc4 cb5 8.Bd3 Qa5 9.Bd2 b4; 5.Nd2 Qa5 6.Ngf3 cb5 7.Bd3 Nc6 8.0–0 Bd6 9.Nb3 Qb6) 5...a6 6.c4 ab5 7.cb5 Bd7 8.Bd3 cb5 9.0–0 Nc6.

4.e3 Bd7 5.Nf3 (5.Nc3 a6 6.Nf3 ab5 7.Bb5 Bb4 8.Bd2 Bc3 9.Bd7 Qd7; 5.c4 a6 6.Nc3 dc4 7.Bc4 Bb4 8.Nge2 ab5 9.Bd3 Bc3; 5.Bd3 a6 6.Nf3 ab5 7.0–0 c5 8.dc5 Bc5 9.Nbd2 0–0; 5.Bd2 a6 6.Nc3 ab5 7.Nb5 c6 8.Nc3 c5 9.Nf3 Nc6) 5...a6 6.Nc3 ab5 7.Bb5 Bb4 8.Bd2 Bc3 9.Bd7 Qd7.

4.e3 Nbd7 5.Nc3 (5.Nf3 Bd6 6.Nc3 0–0 7.Be2 a6 8.0–0 ab5 9.Nb5 Be7) 5...Bd6 6.Nf3 0–0 7.Be2 e5 8.de5 Ne5 9.0–0 Nf3.

4.e3 Ne4 5.Bd2 c5 6.Nf3 cd4 7.ed4 Nd7 8.Bd3 Ndf6 9.0–0 Qc7.

4.e3 Ne4 5.Nd2 Bb4 6.Ne2 c5 7.Rb1 Nd7 8.dc5 Qh4 9.g3 Qf6.

4.e3 Ne4 5.Bd3 Bb4 6.Bd2 Nd2 7.Nd2 a6 8.a3 Bd6 9.a4 e5.

4.e3 Ne4 5.Ne2 Qh4 6.Ng3 Ng3 7.fg3 Qf6 8.Bd3 Nd7 9.Rf1 Qd8.

4.e3 Ne4 5.Nf3 a6 6.Bd3 ab5 7.Bb5 Nd7 +=.

4.e3 Ne4 5.Nf3 c6 6.Bd2 a6 7.c4 Be7 8.Nc3 0–0 9.Qa4 Nd2.

4.e3 Be7 5.Nf3 (5.Nc3 a6 6.Nf3 0–0 7.Bb2 ab5 8.Bb5 Nc6 9.0–0 Bd7; 5.Bd3 0–0 6.Nc3 a6 7.Nf3 ab5 8.Nb5 Nc6 9.0–0 Bd7) 5...0–0 6.c4 (6.Nc3 a6 7.Bd3 ab5 8.Nb5 Nc6 9.0–0 Bd7) 6....c5 (6...a6 7.Nc3 Ne4 8.Bd2 ab5 9.cb5 c5) ½–½. Kaellmann,Ralf Mikael – Katajainen,Kimmo (2070), Helsinki PasVS op, 1996.

4.Nf3 a6 5.ba6 Na6 6.Nc3 Ne4 7.Bd2 Nd2 8.Qd2 Nb4 9.e4 Bd6.

4.Nf3 a6 5.c4 dc4 6.Qa4 c6 7.b6 Nbd7 8.Qc4 Nb6 9.Qd3 Nbd5.

4.Nf3 a6 5.e3 Bd7 6.ba6 Na6 7.Ne5 Nb4 +=.

4.Nf3 a6 5.e3 Bd7 6.Nc3 ab5 7.Bb5 Bb4 8.Bd2 Bc3 9.Bd7 Qd7.

4.Nf3 c5 5.e3 c4 6.Bd2 Ne4 7.Be2 Bd7 –/+.

4.Nf3 c6 5.a4 (5.e3 Bd6 6.c4 dc4 7.Bc4 a6 8.bc6 Nc6 9.Nc3 b5) 5...a6 6.Bb2 ab5 7.ab5 Ra1 8.Ba1 Ne4 9.Qd3 Bd6.

4.Nf3 Bd6 5.Nc3 (5.g3 0–0 6.Nc3 Ne4 7.Qd3 Bb4 8.Bb2 a6 9.a3 Bc3; 5.e3 a6 6.Nc3 ab5 7.Nb5 Nc6 8.Bd3 0–0 9.0–0 e5; 5.Bd2 0–0 6.Nc3 Nbd7 7.g3 e5 8.de5 Ne5 9.Bg2 Nf3) 5...0–0 6.e3 a6 7.Bd3 c6 8.bc6 Nc6 9.0–0 h6.

4.Nf3 Bd7 5.e3 a6 6.ba6 Na6 7.c3 c5 +=.

4.Nf3 Nbd7 5.Bd2 (5.e3 a6 6.ba6 b6 7.Nc3 Bb4 8.Bd2 0–0 9.Ne5 Ne5; 5.Nc3 Bb4 6.Bd2 0–0 7.e3 Bd6 8.Bd3 e5 9.de5 Ne5; 5.Qd3 Bd6 6.Nbd2 e5 7.de5 Ne5 8.Ne5 Be5 9.Rb1 0–0) 5...Bd6 6.Nc3 0–0 7.g3 e5 8.de5 Ne5 9.Bg2 Nf3.

4.Nf3 Ne4 5.Nfd2 Nd6 6.e3 a6 7.Nc3 ab5 8.Nb5 Bd7 9.Rb1 Nb5.

4.Nf3 Ne4 5.Qd3 a6 6.Ba3 Bd7 7.ba6 Ba3 +=.

4.Nf3 Ne4 5.Qd3 Nd7 6.Bb2 Ndf6 7.Nbd2 Bd7 8.Ne5 Nd2 9.Qd2 Bb5.

4.Bf4 Ne4 (4...c5 5.e3 c4 6.a4 a6 7.ba6 Qa5+=) 5.Nf3 c6 6.a4 Bd7 7.e3 Bb4 +=.

4.Bg5 Be7 5.Nf3 c6 6.e3 0–0 7.Be2 (7.Nbd2 Qa5=) 7...cb5 8.Bb5?? (better is 8.0–0+=) 8...Qa5–+ 9.Nc3 Qc3 10.Nd2 Nc6 11.0–0 a6 12.Be2 h6 13.Bh4 Bd7 14.Bg3 (14.Nf3 Rfc8–+) 14...Na7 (14...Nb4 15.a3 Nc2 16.Rc1–+) 15.Re1 Rac8 16.Rb1 Bc6 17.Rb3 (17.Be5 Bb5 18.Bb5 ab5–+) 17...Qa5 18.Rb2 (18.Nb1 Ne4–+) 18...Nb5 (18...Bb4 19.Rb4 Qb4 20.Bh4–+) 19.f3 (19.Nb1 Bb4 20.Rf1 Nc3 21.Nc3 Bc3–+) 19...Nc3 20.Nb3 (20.Qa1–+) 20...Nd1 21.Na5 Nb2 22.Nc6 (22.Rb1 Ba3–+) 22...Rc6 23.Rc1 (23.Bd3 Rfc8–+) 23...Rfc8 24.c4 Nc4 25.Bc4 (25.Rc3 Nb2 26.Rc6 Rc6–+) 25...Rc4 26.Re1 Bb4 27.Re2 Rc1 28.Kf2 Rh1 (better is 28...R8c2!? 29.Rc2 Rc2 30.Kf1–+) 29.Be5 Be7 (29...Nd7 30.Bf4–+) 30.g4 Rcc1 31.Kg3 (31.Rb2 Rhf1 32.Kg3 Rg1 33.Kf2 Rcf1 34.Ke2 Rg2 35.Kf1 Rb2–+) 31...Rcg1 (31...Rhg1!? 32.Rg2–+) 32.Kh3 Nh7 33.a4 Ng5 0–1. Labrousse,Jeanne – Drochon,Francois (1725), Pays de Loire–chT, 2009.

4.Bg5 h6 5.Bf4 Ne4 6.Nf3 g5 7.Bd2 g4 +=.

3.e3 a6

4.Bb2 ab5 5.Bb5 c6 6.Be2 Qb6 7.Qc1 Nd7 8.Nf3 Ngf6 9.0–0 c5 10.c4 Be7 11.Nc3 Qc6 12.Nb5 0–0 13.Ne5 Ne5 14.Be5 Nd7 15.Bb2 b6 16.a4 Bf6 17.Bf6 Nf6 18.d4 Bb7 19.Bf3 Rfc8 20.cd5 ed5 21.dc5 bc5 22.Nc3 Qd7 23.Rd1 Rd8 24.Nb5 Rac8 25.h3 Qe7 26.Rb1 1–0. phildo (1800) – ninjaacc (1815), gameknot.com, 2013.

4.Bb2 ab5 5.Bb5 Bd7 6.Bd7 Qd7 7.Nf3 Nf6 8.0–0 Qb5 9.Qc1 Be7 10.Nc3 Qc4 11.Ne5 Qh4 12.Nf3 Qh6 13.Ne2 0–0 14.Bf6 Qf6 (< 14...gf6 15.c4+=) 15.d4 Nd7 16.Qb2 b6 17.Nc3 c6 18.Ne1 b5 19.Ne2 Nb6 20.c3 Nc4 21.Qc2 Rfb8 22.Nd3 b4 (better is 22...Bd6!?–/+) 23.cb4=+ Bb4 24.Ne5 Ne5 25.de5 Qe5 26.Qc6 Rc8 27.Qb5 Bc3 28.Nc3 Qc3 29.Qe2 Rab8 30.g3 Rb2 31.Qe1 f5 (better is 31...Qe1!? 32.Rfe1 Rcc2–+) 32.Qc3=+ Rc3 33.a4 Rcc2 34.a5 Ra2 35.a6 Ra1?? (better is 35...Rf2! 36.Ra2 Ra2–+) 36.Ra1+/– Rc8 37.Kf1 Kf7 38.Ke2 Kf6 39.a7 Ra8 40.Kd3 e5 41.Kc3 g5 42.Kb4 f4? (better is 42...d4+/–) 43.Kc5+– d4 44.ed4 ed4 45.Kd4 Ke6 46.Kc5 (better is 46.gf4!? gf4 47.Ke4 f3+–) 46...Kd7 47.Kb6 Kc8? (47...f3+–) 48.Rc1 Kd7 49.Kb7 Re8 (49...Rh8+–) 50.Rd1 Ke6 51.Re1 Kd7 52.Re8 (52...Ke8 53.gf4 gf4 54.a8Q Ke7 55.Qa4+–) 1–0. valpa – froilo, HCL–B1995 playchess.de, 2003.

4.Bb2 ab5 5.Bb5 Bd7 6.Be2 Nf6 7.Nf3 Bd6 =.

4.Bb2 Bd7 5.a4 Nf6 6.Nf3 Bd6 7.Be2 Qe7 =.

4.Bb2 Nf6 5.Nf3 Bd6 6.Be5 0–0 7.d4 Ne4 +=.

4.c4 ab5+= 5.cb5 Be7 (5...e5 6.d4 Bb4 7.Bd2 Bd2 8.Nd2 ed4 9.ed4+=) 6.Bb2 Bf6 7.Qb3 (7.Nc3 e5=) 7...c5 8.a4 (8.Bf6 Nf6 9.Qc3 c4+=) 8...Nd7 (8...c4 9.Bf6 Nf6 10.Qc3+=) 9.Nf3 (9.Bf6 Ngf6 10.Nf3 e5–/+) 9...Ne7 (9...c4 10.Qc2–/+) 10.Be2 b6 (10...c4 11.Qc2–/+) 11.0–0 (11.Bf6 Nf6 12.0–0 0–0=) 11...Bb7 (11...c4 12.Qc2 e5 13.d3=) 12.d4 (12.Bf6 Nf6 13.d4 cd4 14.ed4 0–0=) 12...0–0 13.Qc2 (13.Rc1 Ra5=) 13...Rc8 (13...Nf5 14.Bd3=) 14.Qd2 (14.dc5 Rc5 (worse is 14...bc5 15.Bf6 Nf6 16.a5+/–) 15.Qd2 Bb2 16.Qb2 Qc7+=) 14...Nf5 (14...Qc7 15.Rc1+=) 15.Rc1= Re8 16.Ra2 e5 Black gets the initiative 17.Ne5 (17.dc5 Nc5 (worse is 17...bc5 18.a5+=) 18.a5 Nb3 19.Rc8 Qc8–/+) 17...Ne5 18.de5 Be5 19.Be5 Re5 20.Rd1 (20.Bf3 Qf6=) 20...Ra8 (20...d4 21.a5+=) 21.Nc3 (21.Bd3 Qf6=) 21...d4+= 22.ed4 Nd4 23.Kf1 (23.Bc4 Qf6 24.f4 Rf5+=) 23...Qh4–/+ 24.h3 (24.f4 Nb3 25.Qd7 Qf4 26.Kg1 Qe3 27.Kf1 Re7–+) 24...Rg5 (24...Bd5 25.Nd5 Re2 26.Qd4 Qd4 27.Rd4 Ra2 28.Rd1 R8a4 29.Nb6–+) 25.f3 Qg3 (25...Bd5 26.Nd5 Rd5 27.a5–/+) 26.Bc4 Bf3! (26...Bf3 27.Qg5 Qg5 28.gf3 Qg3–+) 0–1. Rongen – Voss, Gennep, 1994.

4.Nf3 Bd7 5.ba6 Na6 6.Be2 Nf6 7.Bb2 Bd6 =.

4.Nf3 Nf6 5.Bb2 Bd6 6.ba6 Na6 7.Be2 0–0 +=.

3.e3 c5

4.Bb2 a6 (4...Nf6 5.Nf3 Bd6 6.Be2 Nbd7 7.c4 0–0+=; 4...Nd7 5.f4 Ngf6 6.Nf3 c4 7.Be2 Bc5=) 5.Nf3 Nf6 6.ba6 ba6 7.Be2 Nc6 +=.

4.Nf3 Bd6 5.Bb2 Nf6 6.Be2 Nbd7 7.c4 0–0 +=.

4.Nf3 Nf6 5.Ba3 Bd7 6.c4 Bd6 7.Nc3 dc4 (7...0–0 8.Qa4+=) 8.Bc4= 0–0 9.0–0 Qa5 10.Bb2 Qb4 11.Qb3 Qb3 12.Bb3 b6 13.a4 Bc8 14.Rad1 Bb7 15.d4 cd4 (15...a6!?=) 16.Rd4+= Bc7 17.Ne2 (17.Rfd1 a6+=) 17...Nbd7 18.Bc2 Bf3 19.gf3 Be5 20.Rb4 Nd5 21.Ba3?? (better is 21.Rh4 f5 22.Bd4=) 21...Nb4–+ 22.Bb4 Rfc8 23.Be4 Rab8 24.Bc6 Nc5 25.f4 Nd3 (25...Bf6 26.Ng3–/+) 26.Ba3 (26.Be7 Bc7+=) 26...Bc7–/+ 27.Rd1 Nc5 28.a5 (28.Bc5!? bc5 29.Ng3–/+) 28...Rd8–+ 29.Rb1 Nb7 30.a6 Na5 31.Nd4 Bd6 (31...Bf4!? 32.Be7 Rd4 33.ed4 Nc6 34.bc6–+) 32.Bb2 Bc5 (32...Nc6 33.Nc6 Ra8 34.Rd1+/– (34.Nd8?! Rd8 35.Rd1 Kf8+=)) 33.Bf3 (33.Be4 f5 34.Bg2 Bd4 35.Bd4 Rbc8–/+) 33...Bd4 (33...Nc4 34.Nb3–+) 34.Bd4–/+ Nc4 35.Rc1 Nd2 36.Bd1 (36.Bb7!? Rd7 37.Be5–/+) 36...Rbc8–+ 37.Ra1 (37.Rc8 Rc8 38.Kg2 f6–+) 37...Rd7 (better is 37...Rd5!?–+) 38.Ra2–/+ Nc4 39.Bf3 Na5 40.Ra3 Rdc7 41.Rd3 Rc1 42.Kg2 Rb1 43.Bb6 ab6 44.a7 Nc6?? (better is 44...Rb5 45.a8Q Ra8 46.Ba8 g6–/+) 45.Bc6 (better is 45.bc6 Rc1 46.Ra3+–) 45...Ra1+/– 46.Rd7 g6 47.a8Q Raa8 48.Ba8 Ra8 49.Rb7 Kf8 50.Kf3 Ke8 51.Ke4 (51.Rb6 Ra7+–) 51...Ra4 (better is 51...Ra2!?+/–) 52.Ke5+– Rc4 53.Kd6 (53.Kf6 Rc5 54.Re7 Kd8 55.Rf7 Rb5 56.Rh7 Rb2+–) 53...Rc5?? (better is 53...Rc8+/–) 54.Rb8 1–0. Schmidt,Kristian – Alsos,Ulv Greve, Tromsoe Bymesterskap–B, 2007.

4.Nf3 Nf6 5.Be2 Bd6 6.Bb2 Nbd7 7.c4 0–0 +=.

4.Qg4 c4 5.c3 (5.d3 Nf6 6.Qd4 Qa5 7.Nc3 Bc5 8.Qc5 Qc3 9.Kd1 Nbd7=) 5...Nf6–/+ 6.Qf4 (6.Qh4 Bd7–/+) 6...a6 (6...Bd6 7.Qh4–/+) 7.ba6 Ra6 (7...Na6 8.Ba3–/+) 8.Nf3 (8.d3 Bd6 9.Qh4 b5=+) 8...Bd6 9.Qd4 (9.Qh4 Qb6 10.a3 Qb5–/+) 9...0–0 (better is 9...Nbd7–/+) 10.Ng5? (better is 10.d3 b5 11.Be2–/+) 10...h6–+ 11.Nh3 Nc6 12.Qh4 b5 13.d4 b4 14.e4? bc3 15.Bh6 gh6 16.Qh6 Ne4 17.f3 c2 18.Nd2 Ra2! 19.Ra2 c1Q 20.Ke2 Nd4 21.Ke3 Qc3 22.Bd3 Qd3# 0–1. manofsteel2 – 26i4u2, Live Game Caissa's Web, 2005.

4.Qg4 Nf6 5.Qh4 =+.

3.e3 Nd7

4.Bb2 Ngf6 (4...e5 5.Nf3 Bd6 6.c4 Ngf6 7.d4 e4+=) 5.Nf3 Bd6 6.Be2 e5 7.0–0 0–0 +=.

4.d4 e5 5.c4 Ngf6 6.Bb2 dc4 7.Bc4 Nb6 +=.

4.d4 Ngf6 5.Bb2 Be7 6.Nc3 0–0 7.Bd3 c5 8.bc6 bc6 9.Nf3 c5 10.Ne5 (10.dc5 Nc5 11.Rb1 Rb8=) 10...Ne5–/+ 11.de5 Nd7 12.Nb5? (better is 12.0–0+=) 12...c4–+ 13.Be2 (13.Bh7 Kh7 14.Bc3–+) 13...Qb6 (better is 13...Qa5 14.Bc3 Qb5–+) 14.a4–/+ a6 15.Bd4 Bc5 (15...Qa5 16.Nc3–/+) 16.Bc5 (16.Nc3 Qa5 17.0–0 Bb4+=) 16...Qc5–/+ 17.Nd6 (17.Nc3!?–/+) 17...Ne5–+ 18.Nc8 Rfc8 19.0–0 Nd7 20.c3 Nf6 21.Bf3 (21.Qc2 Rab8–+) 21...Rab8 22.Qc2 h6 (22...Rb3 23.Rfb1–+) 23.Rfd1 Rd8 24.g3 (24.e4 de4 25.Rd8 Rd8 26.Be4 Ne4 27.Qe4 Qa3–+) 24...e5 (24...Rb3 25.Rdb1 Rdb8 26.Rb3 cb3 27.Qb2–+) 25.Rdb1 e4 26.Bh1 Nd7 27.Rd1 Ne5 28.Kf1 Nd3 29.Rab1 Qc7 30.Rb8 Rb8 31.Rb1 Rb6 (31...Qe5 32.Rb8 Qb8 33.a5–+) 32.Rb6 (32.f3 Rf6 33.f4 Rb6–+) 32...Qb6 33.Kg2 (33.Qd2 Qb3 34.a5 Qa4–+) 33...a5 (better is 33...Ne1 34.Kg1 Nc2–+) 34.Kf1 Qb2 (34...Qb3 35.Qd2–+) 35.Qe2 (35.Qb2 Nb2 36.f3 Na4 37.fe4 de4–+) 35...Qe2 (better is 35...Qc3 36.Kg2 Qb2 37.Qb2 Nb2 38.Kf1–+) 36.Ke2 Nb2 37.f3 f5 38.fe4 fe4 (38...Na4?! 39.ef5 Nb6 40.Kd2+=) 39.Bg2 Na4 40.Bh3 (40.Kd2 Nc5 41.Kc2 Kf7–+) 40...Kf8 (40...Nc3 41.Kd2 Na2 42.Bd7–+) 41.Bd7 (41.Kd2 Nc5 42.Bg4 Ke7–+) 41...Nb6 (better is 41...Nc3!? 42.Kd2 Ke7 43.Bc6–+) 42.Bb5 Ke7 43.g4 Kd6 44.h4 Kc5 (44...a4 45.Kd2 a3 46.Kc1–+) 45.Be8 Na4 (better is 45...a4 46.Kd2 a3–+) 46.Ba4+= d4?? (better is 46...Kd6+=) 47.ed4+– (47.cd4?! Kb4 48.Bc6 a4+–) 47...Kd6 48.Ke3 Kd5 49.Bc2 g5 50.Be4 Kd6 51.hg5 a4 (51...hg5 52.Bc2+–) 52.Bb1 (52.gh6 Ke7 53.h7 Kf6 54.h8Q Ke7 55.Qg7 Kd6 56.Qe5 Kd7 57.Bf5 Kc6 58.Bc8 a3 59.Qc5) 52...hg5 53.Ke4 a3 54.Kf5 Kc6 55.Ba2 (55.Ba2 Kd5 56.Kg5+–) 1–0. Coombes,Fred – Bryan,Ian B, Civil Service Minor op, 2005.

4.d4 Ngf6 5.Nf3 Bd6 6.c4 dc4 7.Bc4 0–0 =.

4.Nf3 Bd6 5.d4 e5 6.c4 dc4 7.Bc4 e4 =.

4.Nf3 e5 5.Bb2 Bd6 6.c4 Ngf6 7.d4 e4 +=.

4.Nf3 Ngf6 5.d4 c5 6.bc6 bc6 7.c4 Rb8 =.

3.e3 Nf6

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

4.Nf3 a6 5.Bb2 Bd6 6.Be2 ab5 7.Bb5 c6 +=.

4.Nf3 Bd6 5.d4 Bd7 (5...a6 6.ba6 b6 7.Ba3 Ba6+=) 6.Nc3 (6.c4 dc4 7.Bc4 a6=) 6...c6 (6...0–0 7.Bd3 a6+=) 7.Bd2 (7.Bd3 a6+=) 7...Ne4 (7...a6+=) 8.Rb1 Nd2 9.Qd2 Qa5 10.Ne4 Qd2 11.Ned2 b6 12.e4 0–0 13.a4 c5 14.dc5 bc5 15.Be2 c4 16.ed5 ed5 17.Nd4 Bc5 18.Bf3 Be6 19.Ne6 fe6 20.Nc4 Rf3 21.gf3 dc4 22.Rd1 Bb4 23.Ke2 Be7 24.a5 a6 25.b6 Nc6 26.Rd7 Bb4 27.b7 Rf8 28.Rc7 Nd4 29.Kd1 Nf3 30.Rc4 Bd6 31.Rc6 Bb8 32.Ra6 (32.Re6 Rd8 33.Kc1 Bf4 34.Kb1 Rb8=) 32...Nh2 33.Ke2 Ng4 34.Rf1 Rf7 35.Rb6 Rc7 36.Rc1 Rf7 37.f3 Nh2 38.a6 Rf3 39.Rd1 (worse is 39.Re6 Kf7 40.Rb6 Ra3+–) 39...Rf8 40.Re6 Ng4 41.c4 Rf2 42.Ke1 Rf8 43.Ra1 Bg3? (43...Ba7+–) 44.Kd2 Bf4 45.Ke2 Bb8 46.a7 Kf7 47.a8Q Ke6 48.c5 g5 (48...Re8 49.Qa4 Nf6 50.Kf3+–) 49.Rf1 Rf1 50.Kf1 Ne3 51.Ke2 Bf4 52.b8Q Bb8 53.Qb8 Nf5 54.Qg8 Kf6 55.Qd8 Ke5 56.Qg5 h6 57.Qg6 Nd4 58.Ke3 Nf5 59.Kd3 h5 60.Qh5 Kf6 61.c6 Ke6 62.Qe8 Kd6 63.Qd7 Ke5 64.c7 Nd6 65.Ke2 Nc8 (65...Kd5 66.c8Q Ke5 67.Qc3 Ke4 68.Qe6 Kf4 69.Qce5) 66.Qc8 Kd6 67.Qd8 Kc5 (67...Kc6 68.c8Q Kb5 69.Qd5 Kb4 70.Qcc5 Ka4 71.Qdc4) 68.c8Q Kb5 69.Qd5 Ka4 (69...Kb4 70.Qcc5 Ka4 71.Qdc4) 70.Qcc4 Ka3 71.Qb3 1–0. Bestia03g – Faile14, computer chess game, 2000.

4.Nf3 Bd7 5.Bb2 a6 6.a4 Bd6 7.Be2 c5 =.

4.Nf3 Nbd7 5.d4 Ne4 6.Bd3 Qf6 7.0–0 Nec5 =.

4.Nh3 Bd7 5.Ng5 Be7 6.Bd3 a6 7.ba6 Na6 8.Bb2 0–0 9.c3 (9.Be2 Nb4–/+) 9...h6 10.Nf3 c5 11.Ba6 (11...ba6 12.Ne5–/+; 11.0–0 c4 12.Bc2 Nc5=+). vulpo – BCC, ChessWorld.net, 2005.

4.Nh3 e5 5.Ng5 –/+.

4.Nf3 c5

5.c4 b6 6.d4 (6.Nc3 a6 (6...Be7 7.d4 0–0 8.Bb2 Bb7 9.dc5 Bc5=; 6...Bd6 7.d4 Bb7 8.cd5 Nd5 9.Bb2 0–0=) 7.Bb2 Be7 8.d4 ab5 9.Nb5 cd4=) 6...Bb7 (6...cd4 7.Nd4 e5 8.Nc2 Bg4 9.Be2 Be2=; 6...a6 7.Nc3 cd4 8.Nd4 e5 9.Nf3 Bb4=; 6...Bd6 7.dc5 bc5 8.Nc3 Bb7 9.cd5 Nd5=) 7.Be2 (7.cd5 Nd5 8.Be2 cd4 9.Qd4 Be7=) 7...Bd6 (7...dc4 8.Bc4 cd4 9.ed4 Bd6+=) 8.0–0 (8.cd5 ed5 9.0–0 0–0=) 8...0–0 9.Bb2 (9.cd5 ed5=) 9...Bc7 (9...Nbd7=) 10.Bc3 cd4 11.Nd4 e5 12.Nf3 dc4 13.Bc4 Bf3 14.Qf3 e4 15.Qe2 Nbd7 16.Rd1 Re8? (better is 16...Qb8 17.f4 ef3 18.gf3 Be5+=) 17.Qb2?? (17.Bf6 Qf6 18.Rd7 Qa1 19.Bf7 Kh8 20.Be8 Re8+–) 17...Re7?? (better is 17...Bh2 18.Kh1 Be5–/+) 18.Bf6+/– gf6 19.Nc3 f5 20.Rd2 (better is 20.Nd5 Re8 21.Nc7 Qc7 22.Rac1+–) 20...Re5?? (20...Bh2 21.Kh2 Qc7 22.Kg1 Qc4+–) 21.Rad1+– Re7 22.Nd5 Re5 (22...Bh2 23.Kh2 Re8+–) 23.Nc7 Qc7 24.Rd7 Qc5 (24...Qc4 25.Qe5 Rf8 26.Qf5+–) 25.Qb3 (25.Bf7 Kf8 26.R1d5 Rc8 27.Qe5 Qc1 28.Rd1 Qd1 29.Rd1 f4+–) 25...Kh8 26.Rf7 h6 (26...Rf8 27.Ra7 Rfe8+–) 27.Rdd7 Re7 (27...Qe7 28.Rde7 Re7 29.Qc3 Re5 30.Qe5 Kg8 31.Qg7) 28.Qc3 1–0. Bonetti,Shane – Kibitz, internet, 2000.

5.c4 Bd6 6.d4 cd4 (6...0–0 7.cd5 ed5 8.dc5 Bc5 9.Be2 a6=; 6...Nbd7 7.cd5 ed5 8.dc5 Nc5 9.Be2 Qa5=) 7.Qd4 Nbd7 8.cd5 e5 9.Qh4 Qc7 =.

5.c4 Nbd7 A) 6.d3 Bd6 (6...a6 7.Nc3 ab5 8.Nb5 Be7 9.Bb2 0–0=; 6...Be7 7.Be2 a6 8.Nc3 ab5 9.Nb5 0–0=; 6...e5 7.cd5 Nd5 8.Qb3 Nc7 9.Nbd2 f6=) 7.Be2 Qc7 8.Nbd2 0–0 9.0–0 Ng4=; B) 6.d4 cd4 (6...Be7 7.cd5 Nd5 8.e4 N5f6 9.e5 Nd5=) 7.ed4 dc4 8.Bc4 Bd6 9.0–0 0–0=.

5.Be2 a6 A) 6.0–0 A1) 6...Bd6 7.ba6 (7.Bb2 ab5 8.Bb5 Bd7 9.a4 0–0 10.d3+=; 7.Na3 0–0 8.d3 e5 9.Bb2 Re8 10.c4+=; 7.d4 c4 8.ba6 Ra6 9.Nbd2 Nc6 10.Bb2–/+) 7...Na6 8.Bb2 0–0 9.a4 Nb4 10.Na3=; A2) 6...ab5 7.Bb5 Bd7 8.Be2 Bd6 9.Bb2 Nc6 10.Nc3+=; B) 6.Nc3 Bd6 7.ba6 (7.Bb2 e5 8.0–0 0–0 9.ba6 ba6 10.d3+=; 7.0–0 e5 8.ba6 ba6 9.d3 0–0 10.Re1+=; 7.d4 c4 8.ba6 ba6 9.Rb1 Nc6 10.0–0+=) 7...ba6 8.d4 c4 9.0–0 Nc6 10.Rb1+=; C) 6.ba6 C1) 6...Na6 C11) 7.Bb2 Bd6 8.Nc3 (8.0–0 0–0 9.Nc3 Nc7 10.a4+=) 8...Nc7 9.Nb5 Nb5= 10.Bb5=; C12) 7.0–0 Bd6 8.Bb2 0–0 9.a4 Nc7 10.Be5=; C13) 7.Nc3 Bd6 8.Nb5 Be7 9.Bb2 0–0 10.0–0=; C2) 6...b6 7.Bb2 (7.Bb5 Bd7 8.a4 Na6 9.Bb2 Bd6 10.Bf6=; 7.Nc3 Ba6 8.Bb2 Be2 9.Qe2 Be7 10.0–0=) 7...Ba6 8.Nc3 Be2 9.Qe2 Be7 10.0–0=; C3) 6...ba6 C31) 7.d4 Nbd7 (7...cd4 8.ed4 Nc6 9.0–0 Rb8=10.Na3=) 8.0–0 Bd6 9.c4 dc4 10.Bc4=; C32) 7.Bb2 Nc6 8.c4 Rb8 9.cd5 ed5 10.Bc3+=; C33) 7.0–0 Nc6 8.d4 Rb8 9.Ba3 Qa5 10.Nfd2=.

5.Be2 Bd6 A) 6.0–0 A1) 6...0–0 7.d4 Nbd7 8.c4 dc4 9.Bc4 Nb6 10.dc5=; A2) 6...Qe7 7.c4 (7.d4 c4 8.a4 a6 9.Nc3 0–0 10.b6+=) 7...0–0 8.d4 cd4 9.ed4 dc4 10.Bc4=; A3) 6...e5 A31) 7.d4 e4 8.Ne5 Qc7 9.Bb2 cd4 10.ed4+=; A32) 7.d3 0–0 8.Nbd2 (8.Nc3 Be6 9.Ng5 Bd7 10.a4+=) 8...a6 (8...Be6 9.Ng5 Bd7 10.c4+=) 9.Bb2 Re8+= (9...Nbd7 10.a4+=) 10.a4+=; A33) 7.Bb2 Nbd7 8.d4 e4 9.Ne5 Qc7 10.f4+=; B) 6.d4 c4 7.0–0 a6 (7...Ne4 8.a4 a6 9.ba6 Ra6 10.Ba3+=) 8.ba6 (8.Nc3 Bd7 9.ba6 b5+= 10.Ne5+=) 8...Ra6 9.Nc3 0–0 10.Bd2+=; C) 6.c4 C1) 6...e5 7.d4 e4 8.Nfd2 cd4 9.ed4 dc4 10.Nc4=; C2) 6...dc4 7.Bb2 Bd7 8.Bc4 a6 9.Na3 0–0 10.0–0=; C3) 6...Nbd7 7.cd5 (7.Bb2 0–0 8.cd5 ed5 9.0–0 Re8 10.Qc2+=; 7.d3 e5 8.cd5 Nd5 9.0–0 0–0 10.Bb2=; 7.0–0 e5 8.d4 Qc7 9.dc5 Nc5 10.h3+=) 7...ed5 8.0–0 Qa5 9.a4 0–0 10.d4=; C4) 6...0–0 7.d4 dc4 8.dc5 Bc5 9.Qd8 Rd8 10.Bc4–/+; D) 6.Bb2 D1) 6...0–0 D11) 7.0–0 a6 8.ba6 (8.Be5 ab5 9.Bb5 Be5 10.Ne5+=) 8...ba6 (8...Na6 9.a4 Nb4+= 10.Na3=) 9.c4 Nc6 10.Na3+=; D12) 7.c4 a6 8.d4 cd4 9.Qd4 ab5 10.cb5=; D2) 6...Nbd7 D21) 7.0–0 e5 8.a4 (8.d3 0–0 9.c4 dc4 10.dc4+=) 8...0–0 9.Nh4 (9.d3 Qc7 10.Nh4+=) 9...Re8+= (9...Bc7 10.Nf5+=) 10.Nf5+=; D22) 7.c4 0–0 8.cd5 ed5 9.0–0 Qe7 10.Nc3+=.

5.Be2 Nbd7 A) 6.0–0 A1) 6...Qc7 7.d4 Bd6 8.Bb2 cd4 (8...0–0 9.dc5 Bc5 10.c4=) 9.ed4 Ng4 (9...0–0= 10.Ba3=) 10.h3=; A2) 6...a6 7.ba6 (7.d4 Bd6 8.c4 dc4 9.Bc4 ab5 10.Bb5=; 7.Bb2 Bd6 8.c4 ab5 9.cd5 ed5 10.Bb5=; 7.Nc3 Bd6 8.ba6 ba6 9.Rb1 0–0 10.d3+=; 7.Na3 Bd6 8.c4 e5 9.d3 0–0 10.cd5=) 7...ba6 8.c4 Rb8 (8...Bd6 9.cd5 ed5 10.d4=) 9.d4 (9.Nc3 Bd6 10.d3+=) 9...Bd6 (9...dc4= 10.Bc4=) 10.cd5=; A3) 6...e5 7.d3 (7.d4 e4 8.Nfd2 c4 9.f3 Qc7+= 10.Nc3+=) 7...Bd6 8.Nbd2 0–0 9.e4 a6 10.ba6=; A4) 6...Bd6 7.d4 (7.c4 e5 8.d4 Qc7 9.dc5 Nc5 10.h3+=; 7.d3 a6 8.Nc3 0–0 9.ba6 ba6 10.Rb1+=) 7...0–0 8.dc5 Nc5 9.Bb2 a6= 10.ba6+=; B) 6.Bb2 Bd6 7.c4 0–0 8.cd5 ed5 9.0–0 Qe7 10.Nc3+=; C) 6.d4 C1) 6...Ne4 7.0–0 (7.Nfd2 Nd6 8.Bb2 c4 9.a4 Nf6 10.Nc3=) 7...c4 8.Nfd2 Nd6 9.a4 Qf6 10.Bb2=; C2) 6...Qa5 7.Qd2 (7.Bd2 Qc7 8.0–0 Bd6 9.a4 0–0 10.a5+=) 7...Qc7 8.0–0 Bd6 9.Ba3 Ne4 10.Qd1=; C3) 6...Qc7 7.0–0 Bd6 8.Bb2 cd4 9.ed4 0–0 10.Ba3=; C4) 6...Bd6 7.0–0 (7.dc5 Nc5 8.Bb2 a6 9.0–0 0–0 10.c4+=) 7...0–0 8.c4 e5 9.de5 Ne5 10.Nbd2=.

5.Be2 Be7 A) 6.Bb2 A1) 6...0–0 7.a4 (7.0–0 a6 8.ba6 Na6 9.Nc3 Qa5 10.Rb1=) 7...Nbd7 8.0–0 Bd6 9.d4 cd4 10.ed4=; A2) 6...Nbd7 7.0–0 (7.a4 0–0 8.0–0 Bd6 9.d4 cd4 10.ed4=) 7...0–0 8.c4 a6 9.ba6 ba6 10.Nc3=; A3) 6...Bd6 7.c4 (7.0–0 0–0 8.c4 dc4 9.Na3 Bd7 10.Bc4=; 7.Be5 Be5 8.Ne5 Nbd7 9.Nd7 Bd7 10.c4+=) 7...0–0 8.d4 cd4 9.Qd4 dc4 10.0–0=; A4) 6...a6 7.ba6 (7.Ne5 ab5 8.Bb5 Nbd7 9.0–0 0–0 10.f4=; 7.Nc3 0–0 8.a4 Nbd7 9.d4 c4 10.Ba3+=) 7...Na6 8.0–0 0–0 9.Nc3 Ne4 10.Ne4=; B) 6.0–0 B1) 6...a6 7.Ne5 (7.Nc3 0–0 8.Bb2 Nbd7 9.Rb1 e5 10.ba6+=; 7.ba6 Na6 8.Bb2 0–0 9.Nc3 Ne4 10.Ne4=) 7...ab5 8.Bb5 Bd7 9.Nd7 Nbd7 10.Bb2=; B2) 6...Nbd7 7.d4 (7.Bb2 0–0 8.c4 dc4 9.Bc4 a6 10.d4=; 7.c4 dc4 8.Bc4 0–0 9.Bb2 Nb6 10.Be2=; 7.a4 0–0 8.Bb2 Bd6 9.d4 c4 10.Ba3=) 7...0–0 8.c4 dc4 9.Bc4 cd4 10.Qd4=; B3) 6...0–0 7.a4 (7.d4 a6 8.dc5 ab5 9.Bb5 Bd7 10.Bd3+=; 7.Ne5 Nfd7 8.Nd7 Nd7 9.Bb2 Bd6 10.f4=; 7.Bb2 a6 8.ba6 Na6 9.Nc3 Ne4 10.Ne4=) 7...Nbd7 8.Bb2 Bd6 9.d4 cd4 10.ed4=.

3.Nf3 Nf6

4.a4 a6 5.Ba3 =+.

4.a4 b6 5.Bb2= Bb7 (5...Bd6 6.e3=+) 6.e3 Nbd7 (6...Bd6 7.Be2=) 7.Bd3 (7.Be2 Bd6=) 7...Bd6 8.0–0 0–0 9.Nc3 a6 (9...e5 10.Bf5=) 10.Qe2 ab5 (10...Nc5 11.ba6 Na6 12.e4=) 11.ab5 Nc5 12.Ra8 Qa8 13.Ra1 Qc8 (13...Qd8 14.Na4=) 14.Na4 Nd3 (14...Ncd7 15.Ra2=) 15.Qd3 Ne4 16.Ba3 (16.Qb3 Qd7=) 16...Qd7 17.Bd6 Qd6 18.Qd4 f6 (18...Ra8 19.d3 Nf6 20.Qb2=) 19.Nc3 (19.Qb2 e5=) 19...Nc5 (19...e5!? 20.Ne4 de4 (20...ed4? 21.Nd6 cd6 22.Nd4+–) 21.Qd6 cd6=) 20.Qg4+= e5 21.d4 (21.Ra7 Rd8+=) 21...Ne4 (21...ed4 22.Qd4 Ra8 23.Ra8 Ba8 24.Qg4+=) 22.Ne4 de4 23.de5 fe5 24.Ng5 Qg6 (24...Qf6 25.Qe6 (25.Ne4? Be4 26.f3 Bd5–+) 25...Kh8 26.Qf6 gf6 27.Ne6+=) 25.Qe6+/– Kh8? (better is 25...Qe6 26.Ne6 Re8+=) 26.Qg6+– hg6 27.Ra7 (27.c4 Kg8+–) 27...Rb8 (27...Ra8 28.Ra8 Ba8 29.Nf7 Kg8 30.Ne5+–) 28.h4 Kg8 29.Ne6 c6 (29...Bc8 30.Nc7 g5 31.hg5+–) 30.bc6 Bc6 31.Rg7 Kh8 32.Rg6 b5 (32...Ba4 33.c3+–) 33.Ng5 (33.Rg5 b4 34.Re5 Re8+–) 33...Bd5 34.Rh6 Kg7 35.Rd6 Bc4 (35...Ba2 36.g4+–) 36.h5 Be2 (36...b4 37.Ne4 Bb5 38.Rd5+–) 37.h6 Kh8 38.Rd7 Bh5 (38...Bc4 39.Rh7 Kg8 40.Re7+–) 39.Rh7 Kg8 40.Rg7 Kh8 41.g4! Be8 42.Ne4 Rb6 43.g5 b4 44.Nf6 (44...Rf6 45.gf6+–) 1–0. market (2280) – Chapo_Mayor (2050), GameColony.com, 2002.

4.d3 Bd7 (5.c4 dc4 6.dc4 a6=+). chiacchiere – chrisalvin2005, internet, 2006.

4.e3 Bd6 =+.

2.b5 Nf6

3.Ba3 a6 4.e3 ab5 5.Bb5 c6 6.Be2 Nbd7 7.d4?? (better is 7.Nf3=) 7...Ra3!–+ 8.Na3 Qa5 9.Qd2 Qa3 10.Nf3 e6 11.0–0 Ne4 12.Qd3 Nc3 13.Bd1? (13.Rfe1 Bb4–+) 13...Nd1 (better is 13...b6 14.Be2 Ne2 15.Qe2 Ba6–+) 14.Rfd1 Qd6 (14...Qd3 15.cd3 Ba3 16.Rdb1–+) 15.Qc3 Nf6 16.Ne5 Ne4 17.Qb2 f6 18.Nd3 Qc7 19.f3 Nd6 20.Qc1 (20.Qc3 Nc4 21.Nb2 Nb2 22.Qb2 Bd6–+) 20...Nc4 21.a4 Bd6 22.f4 0–0 23.Rf1 Re8 24.Rf3 e5 25.fe5 fe5 26.de5 (26.Nb2 e4 27.Rf2 Bh2 28.Kf1 Nb2 29.Qb2 Bg3–+) 26...Ne5 (worse is 26...Be5 27.Ne5 Qe5 28.Rb1–+) 27.Ne5 Be5 (worse is 27...Re5 28.h3–+) 28.Ra3 (28.h3 Ba1 29.Qa1 Qb6–+) 28...Bh2 29.Kh1 Bd6 30.Rb3 Qe7 31.Qe1 Qg5 (31...Bg4 32.Rf1 Qe5 33.g3 Qh5 34.Kg1–+) 32.Kg1 Qh6 33.Kf2 Bg4 34.Qg1 Bf3 35.gf3 Re7 36.Qg4 Kf7 (better is 36...Qh2 37.Qg2 Qh4 38.Ke2–+) 37.Qf5 Qf6 38.Qh7 Qe5 39.Qh3 (39.f4 Qe6–+) 39...Qe6 (39...Bc5!? 40.Kg2–+) 40.Qg2 (40.Qe6 Ke6 (40...Re6?! 41.Rb7 Kf6 42.a5–+) 41.Ke2 g5–+) 40...Qg6 (better is 40...Bf4! 41.e4–+) 41.Qg6 Kg6 42.Rd3 Bc5 43.Rc3 Ba7 44.a5 (44.Rb3 Kf5 45.Ke2 g5–+) 44...Rc7 (better is 44...d4!? 45.Rc4 de3 46.Ke2–+) 45.Rb3 Re7 46.Rc3 d4 47.Rb3 de3 48.Ke1 (48.Ke2–+) 48...Kf5 (48...Kf5 49.Ke2 g6–+) 0–1. Kozlov,Vladimir Alex – Danilov,Vladimir S, Northwest–ch Seniors, 2009.

3.a4 Bf5 4.f3 (4.Nf3 e6=+) 4...e6 5.g4? (better is 5.e3–/+) 5...Bg6 (6.e3 Bd6–/+; better is 5...Ng4 6.h4 Be7–+) 0–1. Ruthless Rook – shirehorse, ChessWorld.net, 2005.

3.d3 e5 4.Nc3 (4.Nf3 Bd6–/+) 4...Bb4 (4...d4 5.Nb1–/+) 5.Bd2 0–0 (5...Qe7 6.e3–/+) 6.Qb1 (6.Nf3 Qe7–/+) 6...Qd6 (6...Qe7 7.Nf3–/+) 7.a3 (7.Nf3 Re8–/+) 7...Bc3 (7...Ba3!? 8.Nf3 d4–+) 8.Bc3–/+ Re8 (8...c5 9.e3–/+) 9.Bb4 (9.Nf3 d4 10.Bb4 c5 11.bc6 Qc6–/+) 9...Qd8 (9...c5 10.bc6 Qc6 11.Bd2–/+) 10.e3 Be6 11.c3 a5–/+ 12.Nf3?? ab4–+ 13.cb4 Qd6 14.Be2 c5 15.0–0 cb4 16.ab4 Ra1 17.Qa1 Nbd7 18.d4 e4 19.Ng5 h6 20.Ne6 fe6 21.Qa4 e5 22.de5 Ne5 23.b6 Qb6 24.Bb5 Nc6 25.h3 Nd7 26.h4 Nde5 27.Bc6 bc6 28.Rc1 Rb8 29.Rb1 c5 30.Qa2 Nc4 31.b5 Rb7 32.Qa8 Kh7 33.Qf8 Nd2 34.Rb2 Nc4 35.Rb1 Ra7 36.h5? Qe6 37.Qb8 Ra2 38.b6 Qg4 39.b7 Ne3 40.g3?? Qe2 41.Qf4 Qc2?? 42.b8Q+– Qb1 43.Qb1 (43...Ra4 44.fe3 Ra8 45.Qb7 Re8 46.Qbf7 Kh8 47.Qe8 Kh7 48.Qf5 g6 49.Qfg6#) 1–0. pinecrest1981 – benjamin73f, caissa.com, 2006.

3.d4 Bf5 4.Na3 (4.Nf3!?=+) 4...e6–/+ 5.e3? (better is 5.Nb1–/+) 5...Bb4–+ 6.Ke2 (6.c3 Bc3 7.Bd2 Bb2–+) 6...Ne4 7.b6 (7.Nb1 Bc3 8.f3 Ba1 9.g4–+) 7...Nc3 8.Kd2 Nd1 9.Kd1 ab6 10.Nb5 c6 11.Rb1 Be7 12.Nc3 0–0 13.Bd3 Bd3 14.cd3 b5 15.e4 b4 16.e5 bc3 17.Rb7 Ra2 18.Re7 Qe7 19.Nh3 Qb7 20.Re1 Qb3# 0–1. Jolilein – Manu@, mySchach.de, 2005.

3.e3 Bd7 4.Nc3 e6 5.d4 Bb4 6.Bd2 c6 7.a4 Bd6 8.Bd3= 0–0 9.Nf3 c5 10.dc5 Bc5 11.Ne5 b6 12.0–0= Bd6 13.Nd7 Nbd7 14.Ne2 e5 15.c3 Nc5 16.Bc2 Rc8 17.Qb1 Qc7 18.g3 Nce4 19.Be4 Ne4 20.Be1 Qc4 21.Qa2 Qa2 22.Ra2 Nc5 23.Bd2 Rc7 24.a5 Nb3 25.ab6=+ ab6 26.Rb1 Nd2?? 27.Rd2+/– Rc5 28.Rdb2 Rd8= 29.Ra1 f6 30.Ra7 h6 31.Rb7 Rb8 32.Rd7 Bf8 33.Kg2 Rc4 34.g4 d4? 35.cd4 ed4 36.Nd4 Re8 37.h3 Bc5 38.Nf5 (38.Nf5 Bf8 39.Ra2+–) 1–0. mic (2140) – lga (2155), net–chess.com, 2008.

3.e3 Nbd7 4.d4 e5 5.Be2 Bd6 6.a4 0–0 7.Bb2 Qe7 8.c3 Nb6 9.Nf3 Bg4 10.h3 Bf3–/+ 11.gf3 Qe6 12.Nd2=+ e4 13.f4 c6 14.Qb3 cb5 15.ab5 Rfc8 16.Rc1 Bc7 17.c4=+ dc4 18.Bc4 Nc4–/+ 19.Rc4 Nd5 20.Ke2 Nb6 21.Rc2=+ Qb3 22.Nb3= Bd6 23.Rhc1 Rc2 24.Rc2 g6 25.Na5 Rb8= 26.Kd1 Bb4 27.Nc4 Nd5 28.Ne5 Re8 29.Ba1 f6 30.Ng4 h5–/+ 31.Nh2 Bd6 32.Nf1 Kf7 33.Nd2 Nb4 34.Rc4= Nd5 35.Nb3 Nc7–/+ 36.Na5 b6 37.Nc6 Nb5 38.d5 a5 39.Nd4 Nc7–+ 40.Rc6 Rd8 41.Rb6 Nd5 42.Rb7 Bc7 43.Ke2 Rb8 44.Rb8 Bb8 45.Nb5 a4–+ 46.Kd1 Ke6 47.Kc1 Nb4 48.Kd2 f5 49.Na3 Nd3 50.Ke2 Bd6 51.Nc4 Nc1 52.Kd1 Nd3 53.Ke2 a3 54.Nd2 Kd5 55.f3 Nc1 56.Kd1 Na2 57.Kc2 Nb4 58.Kc3 a2 59.fe4 fe4 60.Nb3 Nd3 61.Kc2 Be7 62.Bc3 Bh4 63.Nc1 Nc1 64.Kc1 Bf2 65.Kb2 Be3 66.Ka2 Bf4 67.Kb1 e3 68.Kc2 Kc4 69.Be1 g5 70.Bc3 g4 71.hg4 hg4 72.Be1 g3 73.Bg3 Bg3 74.Kd1 Kd3 (74...Kd3 75.Kc1 e2 76.Kb1 e1Q 77.Kb2 Qc3 78.Kb1 Qb3 79.Kc1 Bf4#) 0–1. mic (2100) – gmgenius (2400), net–chess.com, 2008.

3.e3 e5 4.Bb2 Bd6 5.Nf3 +=.

3.e3 Bf5 4.d3 (4.Nf3 e6=+) 4...e6 (4...e5 5.Nf3 Bd6 6.Be2=+) 5.Bb2 (5.Nf3 a6=+) 5...Be7 (5...a6 6.Nc3=+) 6.g3 (6.Nc3 0–0=+) 6...a6–/+ 7.ba6 Na6 8.Bg2 0–0 9.Ne2 (9.Nf3 Nc5–/+) 9...Nb4 (9...Nc5 10.0–0–/+) 10.a3=+ Nc6 11.Nd2 (11.0–0 e5=+) 11...Na5 (11...e5 12.0–0–/+) 12.0–0 (12.e4 Bg4=+) 12...c5 13.e4= de4 14.de4 Bg4 15.f3 Bh5 16.g4 Bg6 17.Nf4 Qc7 18.Ng6= hg6 19.e5 Nd5=+ 20.Qe2 Rfd8 21.Ne4 c4 22.Bd4 Nf4 23.Qf2?? Rd4!–+ 24.Qd4 Ne2 25.Kf2 Nd4 26.c3 Nb5 27.a4 Qb6 28.Kg3 Nc7 29.Rab1 Qc6 30.f4 Nd5 31.Rb5 Nb3 32.f5 ef5 33.Nf6 gf6 34.Bd5 Qc7 35.Re1 fe5 36.Be6 fe6 37.gf5 ef5 38.Ree5 Bd6 (39.Kf2 Be5–+) 0–1. MasterofDisaster – Gebhard, Caissa.com, 2004.

3.e3 g6 4.Bb2 Bg7 5.Nf3 0–0 6.Be2 Nbd7 7.0–0 Re8 8.c4 dc4 9.Bc4 Nb6 10.Be2 Bg4 11.h3 Bf5 12.d4 Ne4 13.a4 Nd5 14.Qb3 h5 15.Bc4 e6 16.Nbd2 g5 17.Ne4 Be4 18.Nd2 Bg6 19.Be2 f5 20.Bf3 g4+= 21.hg4 hg4 22.Bd5 ed5 23.g3 Bf8 24.Ba3 Ba3 25.Qa3 Kg7 26.Kg2 Qd7 27.Qc5 a6 28.Rfc1 Re7 29.b6 c6 30.a5 Qe6 31.Qa3 Ree8 32.Kf1 Rh8 33.Ke2 Rh3 34.Rh1 Rah8 35.Rh3 Rh3 36.Rg1 Kf7 37.Kf1 Ke8 38.Qc5 Bh7 39.Qa3 Qh6 40.Qc5? Kd7?? 41.Qa3 Rh2 42.Qb4? Qf6 43.Qa3 ½–½. Kleist,Werner – Janssen,Helmut (1840), Bad Sooden Allendorf Senior op, 2004.

3.Nf3 Nbd7 4.Bb2 e5 (4...e6!?+=) 5.Ne5+= Ne5 6.Be5 Bg4 7.f3 Bf5 8.e3 Bd6 9.Bd4 Nd7 10.f4 0–0 11.Qh5 Bc2 12.Qd5 1–0. Tiedemann,Joern (2125) – Gimmel,Bernd, remoteschach.de, 2005.

3.a4 e5

4.Bb2 Bd6 5.e3 0–0 6.c4 c6 7.Nf3 Re8 8.Be2 e4 9.Nd4 Be5 10.Na3?? c5–+ 11.Nac2 cd4 12.ed4 Bc7 13.c5 Bf5 14.Ne3 Be6 15.Bc3 Nbd7 16.0–0 Rc8 17.a5 Bb8 18.Qb3? Qc7 19.g3 Bh3 20.Rfb1 Nf8 21.Nd5–/+ Nd5 22.Qd5 Qd7 23.Qd7=+ Nd7 24.a6 b6 25.c6 Nf6 26.Bc4 Ng4 27.Re1 h5 28.d5 h4 29.Bb4 hg3 30.fg3 Rcd8 31.Ra3 Bd6 32.Bd6=+ Rd6 33.d4 f5 34.Rc3 Nf6 35.Bb3 Nd5 36.c7 Rc8 37.Rec1 Kf8 38.Bd5? Rd5 39.Rc6 Rd4 40.Rb6 ab6 41.Rc6 e3 42.Rb6 Rd1 0–1. jupiter (2475) – warlord (2300), net–chess.com, 2003.

4.Nf3 c5 5.Bb2 (5.Ne5 Bd6 6.Bb2 0–0=) 5...Bd6 (5...e4 6.Ne5–/+) 6.g3 (6.Be5 Be5 7.Ne5 Ne4=) 6...h6 (6...e4 7.Ng5–/+) 7.c4 (better is 7.Be5 Be5 8.Ne5+=) 7...dc4 8.Nc3 e4 9.Nh4 g5 (9...0–0!?–/+) 10.Ng2+= Be5 11.Ne3 Be6 12.Ra3 (12.Qc2 Bd4=) 12...g4 (12...a6 13.Qc2 Bd4 14.Bg2+=) 13.h3 (13.Qc2 Bd4=) 13...Rg8 (better is 13...a6–/+) 14.f4?? (14.Bg2 gh3 15.Bh3 Bh3 16.Rh3 Bd4=) 14...Bd4 (better is 14...gf3 15.Qc2 f2 (15...Bg3?! 16.Kd1–+) 16.Kd1 Rg3–+) 15.h4 (15.hg4 Be3 16.de3 Qd1 17.Nd1 Ng4 18.Bh3–/+) 15...Nh5–+ 16.Bg2? (16.Kf2 a6–/+) 16...Nd7 (better is 16...Ng3 17.Rh2–+) 17.Be4?? (better is 17.Kf2 f5 18.a5–/+) 17...Ng3–+ 18.Rg1 White intends f5 (18.Rh2 Bc3 19.Bc3 Ne4–+) 18...Ne4 (18...Qh4 19.Qc2 Ne4 20.Kd1 Nf2 21.Kc1–+) 19.Ne4 (19.Rh1 Nc3 20.Bc3 Be3 21.de3 g3–+) 19...Bb2 20.Ra2 Bf6 (better is 20...Qh4 21.Ng3 c3 22.Rb2 cb2 23.Qb1–+) 21.f5 Bh4 22.Kf1 a6 (better is 22...Nf6 23.Qc2 Bd5–+) 23.fe6 fe6 24.b6?! (24.Nc4 ab5 25.Ncd6 Ke7 26.Nb7 Qc7–+) 24...Rf8 25.Kg2 Nb6 26.a5 Nd7 (26...Qd4!? 27.Qb1 Nd5 28.Nc4–+) 27.Rh1 (27.Nc4 Rb8–+) 27...Ne5 (27...b5 28.ab6 Nb6 29.Qc2–+) 28.Rb2 (28.Qa4 Kf7–+) 28...Rb8 (28...Qd4 29.Qb1 Ng6 30.Ng4 Nf4 31.Kh2 Ne2 32.Rb6–+) 29.Nc5 g3 (better is 29...Qc8!? 30.Qa4 Kd8 31.d4–+) 30.Ne6 Qf6?? (better is 30...Rf2 31.Kg1 Qd7–+) 31.Rb6?? (31.Qa4 Kf7 A) 32.Nf8?? Qf2 (32...Kf8?? 33.Rf1+–) 33.Kh3 g2–+; B) 32.Rf1 Qf1 33.Nf1 Ke6 34.Rb6 (34.Ng3? Rg8 35.Rb6 Kf7–+) 34...Kf7 35.d4+– (35.Ng3 Rg8 36.Kh3 Bg3–+; 35.Rh6?! Bg5 36.Rh5 Bf6+/–)) 31...Rc8 (31...Qf2 32.Kh3 g2 33.Ng7 Kd8 34.Nh5–+) 32.Nd5?? (better is 32.Rf1 Qf1 33.Nf1 Rf2 34.Kh3+–) 32...Qf5 (better is 32...Qf2 33.Kh3 g2 34.Ng7 Kf7 35.Rb7 Kg8 36.Ne7 Be7 37.Re7 Qe2 38.Re5 gh1R 39.Qh1 Rf3 40.Qf3 Qf3 41.Kh2 Qf4 42.Kg2 Qe5 43.Ne6 c3 44.d3 c2 45.d4 Qe2 46.Kg3 Rc3 47.Kf4 Qe6 48.d5 c1Q) 33.Rh4 (better is 33.Ng7 Kd8 34.Nf5 (34.Rh4?? Qf2 35.Kh1 g2 36.Kh2 g1Q 37.Kh3 Qfg2) 34...Rf5 35.Rh4+–) 33...Qf2 34.Kh3 (34.Kh1 g2 35.Kh2 g1Q 36.Kh3 Qfg2) 34...g2 (34...Qh2) 35.Rb7+= Nd7 36.Rg4 (36.Rd7 Kd7 37.Nf8 Rf8 38.Rg4–+) 36...Rg8?? (better is 36...Qf1 37.Ng7 Kd8 38.Ne6 Ke8 39.Ng7 Kd8 40.Ne6 Ke8=) 37.Rg8+– Kf7 38.Rg2 (better is 38.Rd7 Ke6 39.Rg6 Ke5 40.Qa1 c3 41.Re7 Kd5 42.e4 Kd4 43.Rd6 Kc5 44.Rd5 Kb4 45.Rb7 Qb6 46.Rb6 Kc4 47.Qc3) 38...Qf5 39.Kh2 Ke6 (39...Qh5 40.Kg1 Qd5 41.Qb1 Ke6 42.Qg6 Ke7 43.Qh7 Ke6 44.Qh6 Nf6 45.Qh3 Qf5 46.Re7 Ke7 47.Qf5+–) 40.Ne3 (better is 40.e4 Qe5 41.Kh3 Qe4+–) 40...Qh5 (40...Qe4 41.Qh1 Nf6 42.Rgg7 Qh1 43.Kh1+–) 41.Kg1 Rf8 (41...Rc5 42.Qb1 Rb5 43.Rg6 Ke7 44.Qe4 Qe5 45.Rg7 Kf8 46.Qf3 Qf6 47.Rgd7 Rg5 48.Ng2 Rg2 49.Kg2 Qf3 50.Kf3 Ke8 51.Rh7 c3 52.Rh8) 42.Qa4 Qd5 (42...Ne5 43.Qb4 Rf1 44.Nf1 Nc6 45.Qc4 Qd5 46.Qg4 Qf5 47.Qg8 Kd6 48.Ne3 Qb1 49.Rb1 Ne7 50.Qd8 Ke6 51.Rb6 Kf7 52.Rb7 Ke6 53.Qe7) 43.Nd5 Kd5 44.Rd7 (44.Qd7 Ke5 45.Qe7 Kf5 46.Rb1 c3 47.Rf1) 44...Ke6 (44...Ke4 45.Qc6 Kf4 46.Qe6 c3 47.Rg4) 45.Rh2 (45.Qc6 Ke5 46.Re7 Kd4 47.Qd6) 45...Rf6 (45...Rg8 46.Kh1 Rc8 47.Rh6 Ke5 48.Rh5 Ke6 49.Ra7 Kf6 50.Qd7 Rc7 51.Ra6 Rc6 52.Rc6) 46.Rh5 (46.Qc6 Kf5 47.Qf3 Ke5 48.Rh5 Rf5 49.Qf5) 46...Rg6 47.Kf1 (47.Kf2 Rg5 48.Qc6 Kf5 49.Kf3 Rh5 50.Rd5) 47...Rg3 (47...Rf6 48.Ke1 Rf5 49.Qc6 Ke5 50.Qd6 Ke4 51.Qd4) 48.Qc6 1–0. Schreuder,Paul – Schreuder,Brett, Casual CC Server, 2001.

4.Nf3 Bd6 5.Ba3 –/+.

4.Nf3 Nbd7 5.a5 –/+.

3.Bb2

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

3.Bb2 a6 (--> 1.b4 d5 2.Bb2 Nf6 3.b5 a6).

3.Bb2 Qd6 (--> 1.b4 d5 2.Bb2 Qd6 3.b5 Nf6).

3.Bb2 Bd7 4.e3 e6 5.a4 Be7 6.c4 c6 7.Nf3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 Bd7).

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

3.Bb2 e6 4.a4 Bd7 5.e3 c6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 Bd7).

3.Bb2 e6 4.e3 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5).

3.Bb2 e6 4.e3 c5 5.c4 Be7 6.Nf3 0–0 7.Be2 a6 8.a4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 a6 8.a4).

3.Bb2 e6 4.e3 c5 5.Nf3 Bd6 6.c4 Nbd7 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

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

3.Bb2 Bf5 4.e3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.b5).

3.d4 e6

4.e3 c5 5.Nc3 cd4 6.ed4 Bb4 7.Bd2 0–0 8.Bd3 Bd7 9.Nge2 Ng4 10.f3 Nf6 11.Rb1 Bd6 12.0–0 Qc7 13.f4 Be7 14.f5 Bd6 15.Bf4 Bf4 16.Rf4 e5 17.de5 Qe5 18.Qd2 Re8 19.Nd4 Qe7 20.a4 Qc5 21.a5 Re5 22.Rb3 Qe7 23.Nf3+– Qc5 24.Qf2 Qf2 25.Kf2 Re8 26.Rd4 Bc8 27.Nd5 Nd5 28.Rd5 Nd7 29.Kg1 Nf6 30.Re5 Rd8 31.c4 Bd7 32.a6 b6 33.Nd4 Rac8 34.Re3 Be8 35.Nf3 Rc7 36.Re2 Rdc8 37.Ng5 Kh8 38.Ne4 Ne4 39.Re4 f6 40.Rd4 g6 41.Rd6 Kg7 42.fg6 hg6 43.Rd4 Bf7 44.Rb4 f5 45.Kf2 Kf6 46.Rf4 Ke5 47.g3 Rh8 48.h4 Rd8 49.Ke3 Be6 50.Rb1 Rdc8 51.Rc1 Rc5 52.Rc2 R8c7 53.Kf2 Rc8 54.Re2 Kf6 55.Rd4 Re5 56.Rb2 Rec5 57.Rb4 Ke5 58.Ke3 R5c7 59.Be2 Rh7 60.Bf3 Rc5 61.Bc6 Rc7 62.Kd3 Rc8 63.Rb2 Kf6 64.Rb3 Ke5 65.Rb4 Rc7 66.Rd8 Bf7 67.Rb8 R5c6 68.bc6 Kd6 69.Rb7 Be8 70.c5 bc5 71.Rc7 Kc7 72.Rb7 Kc6 73.Kc3 Kd5 74.Ra7 Bb5 75.Ra8 Ke4 76.a7 Bc6 77.Rg8 Bd5 78.Rg6 Kf3 79.h5 f4 80.h6 Be4 81.Rg7 Ke3 82.gf4 Kf2 83.h7 Bc6 84.h8Q Ke1 85.Qh2 Bg2 86.Rg2 Kf1 87.Qg1# 1–0. Bestia03g – Quark100Corbit, computer chess game, 2000.

4.e3 c5 5.Nc3 cd4 6.ed4 Bb4 7.Bd2 Qc7 8.Nge2 0–0 9.Rb1 Ba5 10.h4 Nbd7 11.h5 Nb6 12.h6 g6 13.f3 Nc4 14.g4 Bd7 15.Rb3 Ne8 16.Bh3 Nd2 17.Qd2 Nd6 18.a4 Nc4 19.Qd3 Bc3 20.Qc3 a6 21.0–0 ab5 22.ab5 Qa5 23.Rd1 Bb5 24.Rdb1 Qc3 25.Rc3 Bc6 26.f4 Nd2 27.Rd1 Ne4 28.Rb3 Ra2 29.Rc1 Rfa8 30.g5 Ra1 31.Kg2 R1a4 32.Kg1 Nd2 33.Rd3 Nc4 34.Rb3 Ra1 35.Ra1 Ra1 36.Kf2 Ra2 37.c3 Nd2 38.Rb4 Ne4 39.Kf3 Ra3 40.Kg4 Nd6 41.Bg2 Bb5 42.Bf3 Be2 43.Be2 Rc3 44.Bf3 Kf8 45.Rb6 Rc6 46.Rb4 Rc4 47.Rb6 Ke7 48.Be2 Rd4 49.Kf3 Ra4 50.Bd3 d4 51.Ke2 Ra5 52.Kf3 Ra3 53.Ke2 Kd7 54.Kd2 Ra2 55.Ke1 Ra5 56.Kf2 e5 57.fe5 Re5 58.Rb4 Rg5 59.Rd4 Rh5 60.Be4 b5 61.Bd3 Kc6 62.Rb4 Rh6 63.Rb1 f5 64.Kg3 g5 65.Bf5 Nf5 66.Kg4 Nd4 67.Kg5 Rg6 68.Kh5 Rd6 69.Kg4 Kd5 70.Kh5 Rd7 71.Kh6 Rb7 72.Rb4 Kc5 73.Rb2 b4 74.Rb1 b3 75.Rb2 Kc4 76.Kh5 Kc3 77.Rb1 Kc2 78.Rf1 b2 79.Kh6 b1R 80.Rb1 Kb1 81.Kg5 Kc2 82.Kh5 Rb6 83.Kg4 Rb5 84.Kg3 h5 (85.Kh3 Kd3–+) 0–1. Bestia03g – GLChess211, computer chess game, 2000.

3.e3 c5

4.c4 e6 5.a4 a6 6.Nf3 Bd7 (6...ab5 7.cd5 ba4 8.de6 Be6 9.Ra4=) 7.Bb2= Be7 8.Ne5 Bc8 9.Na3 Nbd7 10.Be2 (10.ba6 Ne5 11.ab7 Bb7 12.Be5 0–0=) 10...Qc7 11.Nd7 Bd7 12.Bf6 (12.0–0 0–0=) 12...Bf6+= (worse is 12...gf6 13.0–0=) 13.Rb1 b6 14.Bf3 ab5 (14...Qe5!?=) 15.Nb5+= Bb5 16.Rb5 (worse is 16.ab5 Qd6+=) 16...Rd8 17.Qb3 (17.cd5 ed5 18.Qc2 Be7+=) 17...dc4= 18.Qc4 0–0 19.d3 Qd6 20.Be2 Ra8 21.0–0 Bd8 22.g3 Bc7 23.Rd1 Rfd8 24.Bf3 Ra7 25.d4 cd4 26.Rd4 (worse is 26.ed4 Qa3 27.Be4 Qa4+=) 26...Qe7 27.Rd8 Qd8 28.Qc2 g6 29.h4 h5 30.Rg5 Kf8 31.Bc6 Qd6 32.Bb5 (better is 32.Rb5!?+=) 32...Bd8–/+ 33.Qb2 (33.Qc3!? Kg8 34.Re5+=) 33...Kg8–+ (33...Bg5?! 34.Qh8 Ke7 35.hg5 Qd1 36.Kh2=) 34.Rg6?? (better is 34.e4–+) 34...fg6 35.Qb3 Bf6 36.Bc4 Kf7 37.Be6 (37.Bd3–+) 37...Qe6 38.Qe6 (38.Qd1 b5! 39.a5 Ra5–+) 38...Ke6 39.f4 Ra4 40.Kf2 b5 41.Kf3 b4 42.g4 hg4 43.Kg4 b3 44.e4 Re4 (44...b2 45.f5 gf5 46.Kf3 b1Q 47.ef5 Qf5 48.Ke2 Ra2 49.Ke3 Qh3 50.Ke4 Ra4) 45.h5 (45.Kh3 b2 46.Kg2 b1Q 47.f5 gf5 48.h5 Re2 49.Kg3 Qd3 50.Kf4 Qe3) 45...gh5 (45...b2 46.Kg3 b1Q 47.Kf2 Qc2 48.Kf1 Rf4 49.Kg1 Bd4 50.Kh1 Rf1) 46.Kh5 (46.Kh3 b2 47.Kg2 b1Q 48.f5 Kf5 49.Kf2 Qh1 50.Kg3 Bh4) 46...b2 (46...Kf5 47.Kh6 Re8 48.Kh5 Rh8) 47.Kh6 (47.Kg4 b1Q 48.Kf3 Qf1 49.Kg4 Qe2 50.Kg3 Re3) 47...b1Q 48.Kh7 (48.Kh5 Rf4 49.Kh6 Rh4) 48...Rf4 (48...Kf7 49.f5 Qh1) 49.Kg8 Qg6 50.Kf8 Qf7# 0–1. Ploetz,Thomas – Strasser,J GER (1900), Bayerisch Eisenstein GER, 2nd Arberopen, 2013.

4.bc6 bc6 5.d4 Ba6 6.c4 Nbd7 7.cd5 (7.Qa4 Bc4 8.Bc4 dc4=) 7…Nd5 0–1. Krivoshapko,Alexander – Pozdniakov,Vladimir, Omsk RUS, City Ch, 2012.

4.bc6 Nc6 5.Bb2 +=.

4.Nf3 Nbd7 =.

2.b5 Bg4

3.Bb2 a6 A) 4.Nf3 Nf6 (4...ab5 5.Nc3 b4 6.Nb5 Bd7 7.e3 Nc6 8.Bd3 Nf6 9.0–0 g6; 4...Nd7 5.Nc3 ab5 6.Nd5 Ngf6 7.h3 Be6 8.Nf6 ef6 9.Nd4 c6) 5.e3 c6 6.bc6 Nc6 7.h3 Bd7 8.Bd3 e6 9.Nc3 Bd6; B) 4.Nc3 d4 5.Ne4 ab5 6.f3 Bf5 7.e3 de3 8.de3 Nc6 9.Qd8 Rd8; C) 4.Na3 Nf6 (4...ab5 5.Nb5 Nc6 6.Nf3 Nf6 7.e3 e6 8.h3 Bh5 9.Be2 Bf3; 4...c6 5.h3 Bd7 6.c4 Nf6 7.bc6 Nc6 8.cd5 Nd5 9.Nf3 b5) 5.h3 Bd7 6.e3 c6 7.bc6 Nc6 8.c4 Qb6 9.cd5 Qb2; D) 4.a4 ab5 (4...Nf6 5.h3 Bf5 6.Nf3 ab5 7.ab5 Ra1 8.Ba1 Nbd7 9.g4 Bg6) 5.ab5 Ra1 6.Ba1 Nf6 7.h3 Bh5 8.Nf3 Nbd7 9.g4 Bg6; E) 4.h3 Bf5 (4...Bd7 5.Nc3 Nf6 6.e3 ab5 7.Bb5 Bb5 8.Nb5 c6 9.Nc3 Nbd7) 5.e3 ab5 6.Bb5 c6 7.Bd3 Bd3 8.cd3 Qb6 9.Qb3 Qb3.

3.Bb2 Qd6 A) 4.Nf3 Nd7 5.Ba3 Qb6 6.Nc3 Ngf6 7.e3 e5 8.Bf8 Kf8 9.h3 Be6; B) 4.Ba3 Qh6 (4...Qb6 5.Nc3 Nf6 6.h3 Bf5 7.Nf3 Nbd7 8.e3 e5 9.Bf8 Kf8; 4...Qe5 5.d4 Qh5 6.Nf3 Nf6 7.Qd3 Nbd7 8.Nc3 0–0–0 9.0–0–0 e5; 4...c5 5.bc6 Qc6 6.h3 Qh6 7.Nc3 Nc6 8.g3 Nf6 9.Bg2 Bf5) 5.Nf3 Nf6 6.Nc3 Nbd7 7.e3 e5 8.Bf8 Kf8 9.Be2 g6; C) 4.Nc3 Nf6 (4...Nd7 5.h3 Bf5 6.e3 Ngf6 7.Nge2 Nc5 8.Ng3 Bg6 9.Be2 e5) 5.h3 Bf5 6.Nf3 Nbd7 7.e3 e5 8.g4 Bg6 9.g5 Ne4; D) 4.h3 Bh5 (4...Bf5 5.Nf3 Nd7 6.Nd4 Bg6 7.Ba3 Qf6 8.Nb3 e5 9.Bf8 Kf8; 4...Qh6 5.g3 Nf6 6.Bg2 Bd7 7.Nc3 e6 8.Nf3 a6 9.g4 Qg6; 4...Bc8 5.Nf3 Nd7 6.e3 Ngf6 7.Ba3 Qb6 8.Nc3 e5 9.Bf8 Kf8) 5.Nf3 Nd7 6.Ba3 Qb6 7.Nc3 Ngf6 8.e3 Qa5 9.Bb2 e6.

3.Bb2 Nd7 A) 4.Nc3 Ne5 5.h3 Bf5 6.Nf3 Nc4 7.Qc1 Nf6 8.e3 a6 9.Bc4 dc4; B) 4.Nf3 Ngf6 (4...a6 5.Nc3 ab5 6.Nd5 Ngf6 7.h3 Be6 8.Nf6 ef6 9.Nd4 c6; 4...e6 5.h3 Bf3 6.ef3 Ngf6 7.Nc3 Bd6 8.Be2 0–0 9.0–0 Qe7; 4...Nb6 5.h3 Bf5 6.Bd4 Nf6 7.Nc3 e6 8.g4 Bg6 9.e3 Bd6; 4...Nc5 5.e3 Na4 6.Bd4 Nf6 7.h3 Bf5 8.Ne5 Nd7 9.Nc3 Nc3; 4...h6 5.e3 Ngf6 6.h3 Bf5 7.Nc3 e5 8.Bd3 Be6 9.e4 de4) 5.h3 Bf3 6.ef3 e6 7.Nc3 Bd6 8.Be2 0–0 9.0–0 Qe7; C) 4.h3 Bh5 (4...Bf5 5.Nf3 Ngf6 6.e3 e6 7.Nc3 Bd6 8.Nh4 Bg6 9.Be2 Nc5) 5.g4 Bg6 6.Nf3 a6 7.Nc3 ab5 8.Nd5 Ngf6 9.Nf4 Be4.

3.Bb2 Nf6 A) 4.Nf3 a6 (4...Nbd7 5.h3 Bf3 6.ef3 e6 7.Nc3 Bd6 8.Bd3 Nc5 9.0–0 0–0; 4...c6 5.h3 Bf3 6.ef3 Nbd7 7.Nc3 Nc5 8.d4 Ne6 9.bc6 bc6; 4...e6 5.h3 Bf3 6.ef3 Nbd7 7.Nc3 Bd6 8.Be2 0–0 9.0–0 Qe7) 5.e3 ab5 6.Bb5 c6 7.Be2 Nbd7 8.Nc3 e6 9.0–0 Bf3; B) 4.f3 Bd7 (4...Bc8 5.Nc3 a6 6.e3 e5 7.d4 Bd6 8.e4 ed4 9.Nd5 Nd5; 4...Be6 5.Nh3 Bh3 6.gh3 Nbd7 7.Rg1 Nc5 8.c4 d4 9.e3 e5; 4...Bh5 5.g4 Bg6 6.g5 Nh5 7.Nh3 Nd7 8.Nc3 e6 9.e3 h6) 5.a4 a6 6.Nc3 d4 7.Ne4 e5 8.Nf6 Qf6 9.c3 Bd6; C) 4.h3 Bd7 (4...Bf5 5.Nf3 Nbd7 6.g4 Bg6 7.g5 Nh5 8.e3 e6 9.c4 dc4; 4...Bh5 5.Nf3 Nbd7 6.Nc3 e6 7.g4 Bg6 8.g5 Ne4 9.h4 h6) 5.Nf3 a6 6.Bf6 gf6 7.Nc3 ab5 8.Nd5 e6 9.Nf4 e5.

3.Nc3 d4 A) 4.h3 Bd7 (4...Bf5 5.e4 Bg6 6.Nce2 c5 7.Ng3 Nf6 8.Qe2 e6 9.Nf3 Nbd7; 4...Be6 5.Na4 Nf6 6.Nf3 a6 7.Nc5 Bd5 8.Nd4 e5 9.Ndb3 ab5; 4...Bh5 5.Ne4 a6 6.Nf3 ab5 7.e3 Nc6 8.Bb5 Qd5 9.Bc6 Qc6) 5.Ne4 Bb5 6.Nf3 Nc6 7.a4 Ba6 8.Nc5 Nf6 9.Rb1 e5; B) 4.f3 Bd7 5.Ne4 Nf6 6.c4 e5 7.Qc2 a6 8.e3 ab5 9.cb5 de3; C) 4.Ne4 Nf6 (4...Nd7 5.Nf3 Ngf6 6.Nf6 ef6 7.Nd4 Ne5 8.Nb3 a6 9.h3 Be6; 4...a6 5.Nf3 Nf6 6.Nf6 ef6 7.h3 Bf5 8.Bb2 Bc5 9.e3 de3; 4...Qd5 5.h3 Bf5 6.Ng3 Nh6 7.Nf3 Nd7 8.Bb2 e5 9.e3 de3; 4...e5 5.Nf3 Nd7 6.h3 Bh5 7.Ng3 Bg6 8.e3 de3 9.de3 Ngf6) 5.Nf6 ef6 6.h3 Be6 7.Nf3 Bc5 8.e3 0–0 9.Bb2 de3.

3.Nc3 Qd6 A) 4.d3 Nd7 (4...Nf6 5.h3 Bh5 6.g4 Qc5 7.Na4 Qb5 8.c4 dc4 9.gh5 cd3; 4...a6 5.h3 Bd7 6.Rb1 Nf6 7.Nf3 d4 8.Ne4 Ne4 9.de4 ab5; 4...Qc5 5.h3 Bd7 6.Qd2 a6 7.d4 Qd6 8.e3 Nf6 9.a4 ab5) 5.h3 Bh5 6.g4 Bg6 7.Bg2 0–0–0 8.Nd5 Ngf6 9.Nc3 e5; B) 4.a4 d4 (4...Nf6 5.h3 Bf5 6.Ba3 Qd8 7.e3 e5 8.Bf8 Kf8 9.Nf3 d4) 5.Ne4 Qd5 6.f3 Bf5 7.Ng3 Nh6 8.c4 Qd6 9.Ba3 Qe5; C) 4.h3 Bh5 5.a4 d4 6.Ne4 Qd5 7.Ng3 Bg6 8.Nf3 Nf6 9.Bb2 e5.

3.Nc3 Nd7 A) 4.h3 Bf5 (4...Be6 5.Nf3 Ngf6 6.Nd4 g6 7.Ne6 fe6 8.d4 Bg7 9.e3 0–0; 4...Bh5 5.Nd5 Nc5 6.Nc3 Nf6 7.Nf3 Nfe4 8.Bb2 Nc3 9.Bc3 Ne4) 5.Nd5 Ngf6 6.Nf6 Nf6 7.Nf3 a6 8.ba6 ba6 9.d3 Rb8; B) 4.Nd5 Ngf6 (4...Nc5 5.Nc3 g6 6.h3 Bf5 7.d4 Ne4 8.Ne4 Be4 9.Nf3 Nf6; 4...Ndf6 5.Ne3 Bd7 6.Nf3 Nh6 7.d4 Bb5 8.c4 Ba6 9.g3 e6; 4...e6 5.Ne3 Ngf6 6.Nf3 Bh5 7.g3 a6 8.Bg2 ab5 9.0–0 Be7; 4...Nb6 5.Ne3 Bd7 6.Nf3 Bb5 7.Rb1 c6 8.g3 Nf6 9.Bg2 Nbd5) 5.Ne3 Bh5 6.Nf3 a6 7.ba6 Ra6 8.g3 e6 9.Bg2 Bd6.

3.Nc3 Nf6 4.h3 Bd7 (4...Bh5 5.Nf3 d4 6.g4 Bg6 7.g5 Nh5 8.Na4 a6 9.c4 dc3; 4...Bc8 5.e3 a6 6.Bb2 ab5 7.Bb5 c6 8.Be2 b5 9.a3 e5) 5.Nf3 a6 6.e3 ab5 7.Bb5 Bb5 8.Nb5 c6 9.Nc3 Nbd7.

3.Nf3 Nd7= A) 4.Nc3 Ngf6 (4...e6 5.h3 Bf3 6.ef3 d4 7.Ne4 Ngf6 8.Bd3 Ne4 9.fe4 Ne5) 5.h3 Bf3 6.ef3 e6 7.Bb2 Bd6 8.Be2 0–0 9.0–0 g6; B) 4.e3 Ngf6 (4...e6 5.Nc3 Bd6 6.Be2 Ngf6 7.0–0 0–0 8.Bb2 Nc5 9.h3 Bh5; 4...Nc5 5.h3 Bd7 6.Nc3 Nf6 7.Ba3 e6 8.Ne5 Bd6 9.Bc5 Bc5; 4...e5 5.h3 Be6 6.Be2 Ngf6 7.Nc3 h6 8.0–0 Bd6 9.a4 0–0; 4...h6 5.Nc3 Ngf6 6.Be2 e5 7.0–0 Bd6 8.h3 Be6 9.a4 0–0; 4...h5 5.Nc3 Ngf6 6.Be2 Bf3 7.Bf3 Ne5 8.0–0 e6 9.Bb2 h4) 5.Nc3 e5 6.h3 Bf5 7.Bb2 Bd6 8.Be2 0–0 9.0–0 Qe7; C) 4.d3 Ngf6 (4...e6 5.Nbd2 Ngf6 6.h3 Bf3 7.Nf3 a6 8.Bd2 Bd6 9.a4 0–0; 4...e5 5.Nc3 Ngf6 6.Rb1 Bd6 7.h3 Be6 8.e3 0–0 9.Be2 Qe7; 4...Nc5 5.d4 Nd7 6.h3 Bf5 7.Nh4 Be6 8.Nc3 Ngf6 9.Nf3 Bf5) 5.Nc3 e6 6.Bd2 Bc5 7.h3 Bf3 8.gf3 d4 9.Ne4 0–0; D) 4.Bb2 Ngf6 (4...Nc5 5.Nc3 d4 6.Ba3 Ne6 7.Na4 a6 8.b6 Nf6 9.Ne5 cb6; 4...e6 5.h3 Bf3 6.ef3 Ngf6 7.Nc3 Bd6 8.Be2 0–0 9.0–0 g6; 4...a6 5.Nc3 ab5 6.Nd5 Ngf6 7.h3 Be6 8.Nf6 ef6 9.e3 c6) 5.Nc3 a6 6.h3 Bh5 7.e3 Nc5 8.ba6 ba6 9.Rb1 e6; E) 4.h3 Bf3 (4...Bh5 5.Nc3 e6 6.e3 Bc5 7.Be2 Ngf6 8.0–0 0–0 9.Bb2 h6; 4...Bf5 5.Nc3 Ngf6 6.Nh4 Be6 7.Nf3 Bf5 8.Nh4 Be6 9.Nf3 Bf5) 5.ef3 Ngf6 6.Nc3 e6 7.Be2 d4 8.Na4 Nc5 9.Nc5 Bc5.

3.Nf3 e6 A) 4.Bb2 Nd7 (4...Nf6 5.h3 Bf3 6.ef3 Nbd7 7.Be2 Bd6 8.0–0 0–0 9.Nc3 g6) 5.h3 Bf3 6.ef3 Ngf6 7.Be2 Bd6 8.0–0 0–0 9.Nc3 g6; B) 4.Nc3 Nd7 (4...Nf6 5.h3 Bf3 6.ef3 Nbd7 7.Bb2 Bd6 8.Be2 0–0 9.0–0 g6) 5.h3 Bf3 6.ef3 Ngf6 7.Bb2 Bd6 8.Be2 0–0 9.0–0 g6; C) 4.e3 Bd6 (4...Nf6 5.h3 Bf3 6.Qf3 Bd6 7.Nc3 0–0 8.Be2 a6 9.Rb1 Nbd7; 4...Nd7 5.Nc3 Ngf6 6.Be2 Bd6 7.h3 Bf3 8.gf3 0–0 9.Bb2 Qe7; 4...Bc5 5.d4 Bd6 6.h3 Bf5 7.g4 Bg6 8.c4 Nf6 9.c5 Be7) 5.Nc3 Nf6 6.Bb2 0–0 7.Be2 a6 8.a4 Nbd7 9.ba6 ba6; D) 4.c4 dc4 5.Qa4 Nf6 6.Na3 Bc5 7.Nc4 Nbd7 8.Ne3 Bh5 9.g4 Bg6; E) 4.h3 Bf3 (4...Bh5 5.Nc3 Nd7 6.Bb2 Ngf6 7.g4 Bg6 8.Bg2 Bd6 9.d3 0–0) 5.ef3 Nf6 6.Be2 a6 7.Nc3 ab5 8.Nb5 c6 9.Nc3 b5.

3.Nf3 Nf6 A) 4.e3 Nbd7 (4...e6 5.h3 Bf3 6.Qf3 Nbd7 7.Nc3 Bb4 8.Bb2 Nc5 9.a3 Ba5; 4...a6 5.h3 Bf3 6.Qf3 ab5 7.Bb5 c6 8.Be2 Na6 9.Nc3 Nb4; 4...e5 5.h3 Be6 6.Bb2 Nbd7 7.Ne5 Ne5 8.Be5 Bd6 9.Bd6 Qd6) 5.Nc3 e5 6.h3 Be6 7.Ng5 Bb4 8.Bb2 0–0 9.a3 Bd6; B) 4.Bb2 a6 (4...e6 5.Nc3 Nbd7 6.h3 Bf3 7.ef3 Bd6 8.Be2 0–0 9.0–0 g6; 4...Nbd7 5.Nc3 e6 6.h3 Bf3 7.ef3 Bd6 8.Be2 0–0 9.0–0 g6; 4...c6 5.h3 Bf3 6.ef3 a6 7.bc6 Nc6 8.Nc3 e6 9.Bd3 Bd6) 5.h3 Bd7 6.a4 ab5 7.ab5 Ra1 8.Ba1 Bb5 9.Bf6 ef6; C) 4.Nc3 d4 (4...Nbd7 5.Bb2 e6 6.h3 Bf3 7.ef3 Bd6 8.Be2 0–0 9.0–0 g6; 4...e6 5.e3 Bd6 6.Be2 Nbd7 7.0–0 0–0 8.Bb2 Nc5 9.h3 Bh5) 5.Na4 a6 6.c4 ab5 7.cb5 Qd5 8.Qb3 Nbd7 9.Bb2 e5; D) 4.h3 Bd7 (4...Bf3 5.ef3 Nbd7 6.Be2 e6 7.0–0 Bd6 8.Nc3 0–0 9.d4 Qe7; 4...Bf5 5.g4 Bg6 6.g5 Nh5 7.e3 Nd7 8.Nc3 e6 9.Bb2 Bd6) 5.Nc3 a6 6.e3 ab5 7.Bb5 Bb5 8.Nb5 c6 9.Nc3 Nbd7.

3.h3 Bc8 A) 4.Nc3 Nf6 (4...Qd6 5.Nf3 Nf6 6.a4 c5 7.e3 Nbd7 8.Ba3 e5 9.d4 e4; 4...a6 5.Nf3 ab5 6.Nb5 Nf6 7.e3 Nbd7 8.Bb2 c6 9.Nc3 e5; 4...c6 5.e3 a6 6.bc6 Nc6 7.Nf3 Nf6 8.d4 g6 9.Bd3 Bg7; 4...e6 5.Nf3 Nf6 6.e3 Nbd7 7.Bd3 Nc5 8.0–0 Bd6 9.a4 Nfe4; 4...d4 5.Ne4 f5 6.Ng3 Nf6 7.e3 de3 8.de3 Qd1 9.Kd1 a6) 5.e3 Qd6 6.Nf3 Nbd7 7.Be2 g6 8.0–0 Bg7 9.d4 0–0; B) 4.Bb2 Nf6 (4...Nd7 5.Nf3 Ngf6 6.e3 e6 7.Nc3 Nc5 8.Be2 Bd6 9.0–0 0–0; 4...e6 5.Nc3 Nf6 6.Nf3 Nbd7 7.e3 Nc5 8.Be2 Bd6 9.0–0 0–0; 4...a6 5.e3 c6 6.bc6 Nc6 7.Nf3 Qb6 8.Ba3 Qa5 9.Bb2 Qb6; 4...c6 5.Nf3 Nf6 6.a4 a6 7.e3 ab5 8.ab5 Ra1 9.Ba1 Nbd7) 5.Nf3 Nbd7 6.e3 e6 7.Nc3 Nc5 8.Be2 Bd6 9.0–0 0–0; C) 4.e3 a6 (4...c6 5.Nf3 a6 6.bc6 Nc6 7.Be2 Nf6 8.Bb2 g6 9.Nc3 Bg7; 4...Nf6 5.Nf3 e6 6.Nc3 Nbd7 7.Be2 Bd6 8.0–0 0–0 9.Bb2 Nc5; 4...e6 5.Nc3 Nf6 6.Nf3 Nbd7 7.Bb2 Nc5 8.Be2 Bd6 9.0–0 0–0; 4...Nd7 5.Nf3 Nc5 6.Nc3 Nf6 7.Ba3 e6 8.Be2 Bd6 9.0–0 0–0; 4...e5 5.Nf3 Nd7 6.c4 Ngf6 7.Nc3 e4 8.Nd4 Bc5 9.cd5 0–0) 5.Nc3 Nf6 6.Bb2 ab5 7.Bb5 c6 8.Be2 b5 9.a3 e5; D) 4.d3 Nf6 (4...a6 5.ba6 Na6 6.Nf3 Nf6 7.Nc3 d4 8.Ne4 e6 9.a3 Nc5; 4...Qd6 5.Nf3 Nf6 6.Qd2 a6 7.Na3 Nbd7 8.ba6 Qa6 9.c4 e5; 4...c6 5.Nf3 Nf6 6.a4 a6 7.Ba3 e6 8.Bf8 Rf8 9.Nbd2 Qa5; 4...e6 5.Nf3 Nd7 6.Bd2 Ngf6 7.Nc3 Bd6 8.g3 0–0 9.Bg2 Nc5) 5.Nf3 a6 6.Bf4 ab5 7.Nc3 c6 8.a3 Nbd7 9.Ra2 e6; E) 4.Nf3 Nf6 (4...Nd7 5.Ba3 Ngf6 6.e3 a6 7.ba6 b6 8.Nc3 Ba6 9.Ba6 Ra6; 4...a6 5.e3 c6 6.bc6 Nc6 7.Be2 Nf6 8.Nc3 e5 9.0–0 Bd6; 4...c6 5.e3 Nf6 6.Be2 a6 7.bc6 Nc6 8.0–0 g6 9.Nc3 Bg7) 5.Bb2 Nbd7 6.e3 Nc5 7.Nc3 g6 8.Ba3 Nfe4 9.Ne4 Ne4.

3.h3 Bd7 A) 4.Nf3 Nf6 (4...a6 5.Nc3 Nf6 6.e3 ab5 7.Bb5 Bb5 8.Nb5 c6 9.Nc3 Nbd7; 4...Bb5 5.Nc3 Bc6 6.Rb1 Nf6 7.Nd4 Nbd7 8.e3 e6 9.Bd3 Ne5) 5.Nc3 a6 6.e3 ab5 7.Bb5 Bb5 8.Nb5 c6 9.Nc3 Nbd7; B) 4.e3= Nf6 (4...a6 5.Nc3 ab5 6.Nd5 e6 7.Nc3 b4 8.Nb5 Nf6 9.Nf3 Ra5) 5.Nf3 a6 6.Nc3 ab5 7.Bb5 Bb5 8.Nb5 c6 9.Nc3 Nbd7.

3.h3 Bf5 A) 4.d3 e6 (4...Nd7 5.Nf3 e6 6.g4 Bg6 7.Bd2 Nc5 8.Bg2 Nf6 9.0–0 Bd6; 4...e5 5.Nf3 Nd7 6.Nbd2 Ngf6 7.c4 Be6 8.cd5 Nd5 9.e4 Nc3; 4...a6 5.Nf3 ab5 6.Nc3 b4 7.Nb5 Nf6 8.Bf4 Na6 9.Ne5 c5; 4...Nf6 5.Nf3 e6 6.g4 Bg6 7.g5 Nh5 8.Nc3 Bc5 9.Bd2 Nd7) 5.Nf3 Nd7 6.g4 Bg6 7.Be3 Bc5 8.Qd2 Be3 9.fe3 Ngf6; B) 4.g4 Bg6 (4...Be4 5.Nf3 Nd7 6.Nc3 Ngf6 7.Bg2 Bf3 8.Bf3 Ne5 9.Bg2 e6; 4...Bc8 5.Nf3 a6 6.Nc3 d4 7.Ne4 ab5 8.e3 Qd5 9.d3 de3; 4...Bd7 5.e3 a6 6.b6 cb6 7.Nc3 e6 8.Nf3 Nc6 9.Bb2 Nf6) 5.e3 a6 6.Nc3 ab5 7.Bb5 c6 8.Be2 Nf6 9.Nf3 Nbd7; C) 4.Bb2 a6 (4...Nf6 5.Nf3 Nbd7 6.g4 Bg6 7.g5 Nh5 8.Nc3 e6 9.e3 Bd6; 4...Nd7 5.Nf3 Ngf6 6.g4 Bg6 7.Nc3 e6 8.g5 Ne4 9.h4 h6) 5.Nf3 ab5 6.Nd4 Bd7 7.Nc3 Nf6 8.e4 de4 9.Qe2 Nc6; D) 4.e3 Nf6 (4...Nd7 5.Nf3 Ngf6 6.Bb2 e6 7.Nc3 Bd6 8.Nd4 Bg6 9.Bd3 Ne5; 4...e5 5.Nf3 Nd7 6.c4 d4 7.ed4 e4 8.Nh2 Ngf6 9.Ng4 Be7; 4...a6 5.Nf3 ab5 6.Bb5 c6 7.Be2 Nd7 8.Nc3 Ngf6 9.0–0 e5) 5.Nf3 Nbd7 6.Bb2 e6 7.Nc3 Bc5 8.Nh4 0–0 9.Nf5 ef5; E) 4.Nf3 Nf6 (4...Nd7 5.Nh4 Nh6 6.Nc3 e6 7.Nf3 Bd6 8.g4 Bg6 9.Bg2 0–0; 4...a6 5.Nc3 Nf6 6.e3 ab5 7.Bb5 c6 8.Be2 Nbd7 9.0–0 e5) 5.Nc3 Nbd7 6.Nh4 Bg6 7.e3 e6 8.Be2 Bd6 9.0–0 Nc5.

3.h3 Bh5

4.Bb2 a6 (4...Nf6 5.Nf3 Nbd7 6.e3 e6 7.g4 Bg6 8.Nc3 Nc5 9.g5 Nfe4; 4...Nd7 5.g4 Bg6 6.Nf3 a6 7.ba6 Ra6 8.Nc3 Ngf6 9.g5 Ne4) 5.Na3 Nf6 6.Nf3 Nbd7 7.e3 ab5 8.Nb5 c6 9.Nbd4 e5.

4.Nc3 Nf6 (4...Nd7 5.Nd5 Nc5 6.Nc3 Nf6 7.Nf3 e6 8.Bb2 Bd6 9.g4 Bg6; 4...a6 5.Nf3 ab5 6.Nb5 Nd7 7.Bb2 c6 8.Nc3 Ngf6 9.e3 e5; 4...e6 5.Nf3 Nd7 6.Bb2 Ngf6 7.e3 Bd6 8.Be2 0–0 9.0–0 Nc5; 4...Qd6 5.Nf3 Nd7 6.e3 Ngf6 7.Be2 e5 8.a4 Qe6 9.0–0 Bb4) 5.Nf3 d4 6.g4 Bg6 7.g5 Nh5 8.Na4 a6 9.c4 Nd7.

4.d3 a6 (4...e6 5.Nf3 Nd7 6.g4 Bg6 7.Nc3 Ngf6 8.Bg2 Bc5 9.0–0 0–0; 4...Nd7 5.g4 Bg6 6.Nf3 e6 7.Nc3 Ngf6 8.Bg2 Bc5 9.Bf4 0–0; 4...Nf6 5.g4 Bg6 6.g5 Nh5 7.Nc3 d4 8.Ne4 a6 9.Rb1 ab5) 5.Nf3 ab5 6.g4 Bg6 7.Nc3 b4 8.Nb5 Qd7 9.c4 bc3.

4.Nf3 Nd7= (4...e6 5.g4 Bg6 6.d3 Nd7 7.Nc3 Ngf6 8.g5 Nh5 9.Be3 Bc5; 4...a6 5.e3 Nf6 6.Nc3 ab5 7.Bb5 Nc6 8.0–0 e6 9.g4 Bg6; 4...Nf6 5.g4 Bg6 6.g5 Nh5 7.e3 Nd7 8.Nc3 e6 9.Bb2 Bd6) 5.Nc3 Ngf6 6.e3 e6 7.Be2 Bc5 8.0–0 0–0 9.Bb2 h6.

4.g4 Bg6+= 5.Nf3 a6 6.Na3+= (6.e3 ab5 7.Bb5 c6 8.Be2 Nf6 9.Nc3 Nbd7) 6...Nf6 7.g5 Ne4 8.d3 Nd6 9.Rb1 e6.

4.g4 Bg6+= 5.Nf3 e6 6.Bb2 (6.d3 Nd7= 7.Nc3 Ngf6 8.Bg2 Bc5 9.Bf4 0–0) 6...Nf6 7.Bg2 (7.Nc3 Nbd7+= (7...Bd6 8.g5 Nh5 9.e3 Nd7) 8.g5 Nh5 9.e3 Bd6; 7.d3 Bd6 8.Nc3 Nbd7 9.Bg2 0–0) 7...c6 (7...Nbd7 8.Nc3 Bd6 9.Nh4 Ne5) 8.a4 (8.d3 cb5 9.g5 Nh5) 8...Qb6 (8...Bc5 9.d4 Bd6 10.Nc3+=) 9.Bd4= (9.e3 Nbd7) 9...Qc7 (9...c5=) 10.d3 (10.g5 Nh5 11.Nc3 Nd7 12.bc6 bc6–/+) 10...Nbd7+= 11.0–0 (11.Nbd2 c5 12.Be3 Bd6+=) 11...Bd6= 12.Bb2 (12.g5 Nh5+=) 12...0–0 13.Nbd2 a6 14.bc6 bc6 15.Rb1 h6 (15...Nc5 16.c4+=) 16.c4 Rab8 (16...Rfe8 17.Qc2+=) 17.Qc2 Rb7 (17...c5 18.cd5 ed5 19.Nh4 Bh2 20.Kh1+=) 18.Ba1 (18.cd5 ed5 19.e4 Rfb8+=) 18...Rfb8 19.Rb7 Rb7 20.Rc1 Ba3 (20...c5 21.cd5 ed5 22.e4+=) 21.Rd1 Bh7 (21...Bc5 22.cd5 cd5 23.Rc1=) 22.a5 (22.cd5 cd5 (worse is 22...Nd5 23.e4+=) 23.Qc7 Rc7+=) 22...Bf8 23.Nb3 (23.cd5 ed5 24.e4 Nc5=) 23...Qb8 (23...c5 24.Bb2+=) 24.Nbd2 e5 25.g5 (25.cd5 cd5 26.Qc6 Rc7 27.Qa6 Ra7=) 25...hg5 26.Ng5 Bg6 27.Ndf3 Rb4 28.Qd2 (28.cd5 cd5 29.Bc3 Rb5+=) 28...Bh5 (28...dc4 29.d4 ed4 30.Nd4+=) 29.cd5+= cd5 30.d4 e4 31.Ne5 Rb5 32.f3 Rb1 33.Bc3 (33.Nd7 Nd7 34.fe4 Be7–/+) 33...Ne5 34.de5 Bc5 35.Kh2 Rd1 36.Qd1 Be3 37.Kh1 Ne8 38.Bd2 (38.h4 d4! 39.Be1 Qe5 40.Ne4 Nd6–/+) 38...Bg5 39.Bg5 Qe5 40.Qd2 ef3 41.ef3 Nd6 (41...d4 42.f4 Qc5 43.Bh4–/+) 42.Bf4 Qa1 43.Kh2 Qf6 44.Bg5 Qe6 (44...Qf5 45.Qf4 Qd7–/+) 45.f4 (45.Qe3!?–/+) 45...Ne4–+ 46.Qd4 Qc6 (46...f6 47.Bh4–/+) 47.Be4 (47.Qb6!? Qc4 48.f5–/+) 47...de4–+ 48.Bh4 Bf3 49.Qd8 Kh7 50.Bf2 f6 51.Be3 Qb5 52.Qd2 Kg6 53.Bb6 Qd3 (53...Qh5 54.Kg3–+) 54.Be3? (54.Qd3 ed3 55.Be3 Kf5+=) 54...Kf5 (54...Qb3 55.Kg3–+) 55.Kg3? (55.Qd3 ed3 56.Kg3 Bd5+=) 55...Bd1 (better is 55...Qb5!?–+) 56.Kf2+= Bh5 57.Kg2? (57.Qd3 ed3 58.h4 Ke4+=) 57...Be8 (57...Qb5!?–+) 58.Kf2 (58.Qd3 ed3 59.Kf2 Ke4+=) 58...Bb5 (58...Qb1 59.Qc1 Qb7 60.Qc5 Kg6 61.f5 Kh7 62.Qb6–+) 59.Kg2 (59.Qd3 ed3 60.Ke1 Ke4+=) 59...Bc4 (59...Qb3!? 60.Kh2 Qc4 61.Qd1–+) 60.Kg3 (60.Qd3 ed3 61.Bc1 Ke4+=) 60...Be6 (better is 60...Qb3–/+) 61.Kg2? (better is 61.Qd3!? ed3 62.Bc1+=) 61...Qc4–+ 62.Kg3 (62.Kf2 Kg6 63.Qe2 Qd5–+) 62...Kg6 63.Qd4 Qc2 64.Bd2 Qb3 65.Bc3 Bf5 66.Qe3 Qc4 67.Kg2 ½–½. Taulien,Hans_Juergen (2350) – Mehlhorn,Uwe (2440), remoteschach.de, 2003.

2.c3 b5

3.a4 ba4!? 4.Nf3 Bd7 =.

3.a4 a6 4.ab5+/– e5 5.Qa4 (5.e4 de4 6.d3 Nf6=) 5...Bb7 (5...Nf6 6.e3 Qd7 7.ba6 Ba6 8.Qd7 Kd7 9.Be2+/–) 6.b6 (6.ba6 Bc6 7.Qd1 Ra6 8.Ra6 Na6+=) 6...c6 7.e3 (better is 7.Qa5!?+/–) 7...Qb6 8.d4 Nd7 9.g3 (9.Qa5 Qa5 10.Ra5 Bd6=) 9...a5 (better is 9...Ngf6=+) 10.Qc2?? (better is 10.ba5 Qc7 11.Nd2+=) 10...ab4–/+ 11.Ra8 Ba8 12.cb4 (12.Nd2 Ngf6–/+) 12...Qb4 (12...Bb4 13.Bd2 ed4 14.ed4 Qd4 15.Nf3–+) 13.Nd2 (13.Bd2 Qe7–/+) 13...Ngf6 14.Be2 Bd6 15.f3? c5 16.de5 Be5 17.f4 Bc3 18.Ngf3? Ne4 19.0–0 0–0 20.Bd3 Ndf6 21.Ne4 de4 22.Be4 Ne4 23.Ne5 Nd2 24.Nd3 Qa5 25.Rd1 Nf3 26.Kg2 Nd4 27.Kh3 Nc2 28.Ne5 Rd8 29.Nc4 Qc7 30.Rf1 h6 31.e4 Be4 32.Rf2 Bf6 33.Bb2 Qd7 34.g4 Qd3 35.Rf3 Qf3# 0–1. alanwsp (1745) – dmarsh (1680), net–chess.com, 2004.

3.d4 Nf6 4.h3 Qd7 5.Nf3 h6 6.Na3 g5 (better is 6...a6!?=) 7.Ne5+/– Qf5 8.f3 (8.Nb5!? Na6+–) 8...Qe6 (better is 8...c6!?+=) 9.Nb5+/– Qb6 10.a4 c6 11.a5?? (better is 11.Na3+/–) 11...Qb5–/+ 12.e3 Qb7 13.Bd3 Nh5 14.Ng4 Ng3 15.Rg1 Bf5 16.Bf5 h5 (16...Nf5!? 17.e4 Nd6 18.Qe2–+) 17.Ne5 Nf5 18.Qc2 Nd6 19.e4 Nc4?? (better is 19...Bh6–+) 20.Nc4= dc4 21.Qa4 (21.Bg5 Qb5 22.Qd2 Nd7+=) 21...a6 (21...Rg8!?–/+) 22.Bg5+= Qc7 23.e5 f6 24.Bf4 fe5?? 25.Be5+– Qd7 26.Bh8 Qe6 27.Be5 Bg7 28.Kf2 Be5 29.de5 Qe5 30.Qc2 Qg7 31.Rad1 Nd7 32.Rd4 Ne5 33.Rgd1 Nd3 34.Kg1 Qg3 35.Qe2 Rd8 36.Rc4 Qf2 37.Qf2 Nf2 38.Kf2 Rd1 39.Rc6 Rc1 40.f4 Kd7 41.Ra6 Rc3 42.Rb6 Kc7 43.b5 Rc4 44.Kf3 Rc3 45.Kf2 Ra3?? 46.Ra6 Rd3 47.Rh6 h4 48.Rh4 Rd5 49.b6 Kb7 50.Ke3 Ka6 51.b7! Kb7 52.Rh7 Rd7 53.f5 Rd5 54.Ke4 Ra5 55.Re7 Kc6 56.Kf4 Ra1 57.Re2 Ra4 58.Kg5 Kd5 59.f6 Kd4 60.Kg6 Kd3 61.Re8 Ra2 62.f7 Rg2 63.Kf6 Rf2 64.Ke6 Rf3 65.f8Q Re3 66.Kd7 Re8 67.Qe8 Kd4 68.Kd6 Kc3 69.Kd5 Kd3 70.Qe4 Kd2 71.Kd4 Kd1 72.Kd3 Kc1 73.Qe2 Kb1 74.Kc3 Ka1 75.Qb2 1–0. 488 – primemover, ChessWorld.net, 2012.

3.e3 Nf6 4.Bb5 c6 5.Bd3 e5 6.a3 e4 7.Be2 a6 8.a4 a5 9.b5 c5 10.Ba3 Be7 11.Qb3 (11.d4 Nbd7+/–) 11...c4 12.Bc4 (better is 12.Be7 Qe7 13.Qa3+=) 12...Be6?? (better is 12...dc4 13.Qc4 0–0–/+) 13.Be2+/– 0–0 14.Be7 Qe7 15.c4 (15.d4 ed3 16.Bd3 d4+–) 15...Nbd7 16.Qa3 Qa3? (16...Nc5!?+=) 17.Ra3 Nc5 18.Nh3 Bg4? (better is 18...Bh3!? 19.gh3 Rac8+/–) 19.Nf4 (19.Bg4!? Ng4 20.cd5 Nf6+–) 19...Be2 20.Ne2 (better is 20.Ke2 dc4 21.Rc1+–) 20...Nd3+/– 21.Kf1 dc4 22.Nbc3 Rfe8 23.g3 Ng4 24.Nd5 (24.h3 Nf6+/– (24...Ngf2? 25.Rh2+–)) 24...Re5 (24...Rad8!? 25.Nec3 Ngf2+=) 25.Ndf4 Ndf2 26.Rg1 Rd8 27.Kg2?? Rd6?? 28.h3 Nh3 29.Nh3 g5?? 30.Rc3?? Rd2= 31.Re1 Rc5 32.Nhg1 h5 33.Rec1 Rf5 34.Rf1 Rc5 35.Kh1 Ra2 36.Rb1 Ra4 37.b6+= Rb4 38.Rcc1? Ne3–+ 39.b7 Rcb5 40.Nc3 Rb7 41.Rb4 ab4 42.Na4 c3 43.Nc3 bc3 44.Rc3 Ng4 45.Rc5 Kf8 46.Rg5 Rb2 47.Rh5 e3 48.Rg5 Rh2 0–1. maddoxdb – tomo71, gameknot.com, 2011. (=1.c3 d5 2.b4 b5)

3.e3 a6

4.a4 c6 5.ab5 cb5 6.Bb5! Bd7 (6...ab5 7.Ra8 Pinning (7.Ra8 Deflection)) 7.Qa4?? (better is 7.Bd7 Nd7 8.Nf3+/–) 7...Bb5–+ 8.Qa5 Nc6 9.Qd8 Nd8 10.Nf3 f6 11.Nd4 Bd3 12.Na3 e5 13.Ne2 Be2 (better is 13...a5!? 14.ba5 Ra5 15.Bb2–+) 14.Ke2 a5 (better is 14...f5!?–+) 15.Nb5–/+ Kf7 (15...Rb8 16.Ra5 Nc6 17.Nc7 Kd8 18.Na6 Na5 19.Nb8–/+) 16.Nc7 Rc8 17.Nd5 ab4 18.cb4 Nc6 19.Ba3 (19.b5 Ke6 20.Nc3 Nb8+=) 19...Nh6 (better is 19...Ke6!? 20.e4 f5–+) 20.b5+= Ke6 21.e4? (21.Nc3 Nb8+=) 21...Ba3?? (21...Nd4 22.Kd3 Ba3 23.Ra3 Nb5 24.Ra6 Nd6 25.Re1–+) 22.Ra3? (better is 22.bc6 Bc5 23.c7+=) 22...Nd4–+ 23.Kd1 Nb5 24.Ra6 Kf7 25.Rb6 Rb8 26.Rb8 Rb8 27.Ke2 Nd4 28.Ke3 Ng4 29.Kd3 Nf2 30.Kc4 Nh1 31.d3 g6 32.g3 Rb2 33.Ne3 Rh2 34.Kd5 Ng3 35.Ng4 Rd2 36.Kd6 h5 37.Ne3 Rd3 38.Nd5 Ne4 39.Kd7 h4 40.Nc7 Nb5 41.Kc6 Rc3 42.Kb5 Rc7 0–1. maddoxdb – n_a_p_p_e, gameknot.com, 2012. (=1.c3 d5 2.b4 b5)

4.a4 c6 5.ab5 cb5 6.Nf3 Nc6 (6...Bd7 7.d4+=) 7.Na3 (7.Bb5!? Bb7 8.Ba4+/–) 7...e6 (better is 7...Bf5!?=) 8.Nb5!+/– Bb7 (8...ab5 9.Nd4 Double attack (9.Ra8 Pinning; 9.Ra8 Deflection; 9.Nd4 Decoy; 9.Ra8 Clearance)) 9.Qa4?? (better is 9.Nbd4 Nd4 10.ed4+/–) 9...ab5–+ 10.Qb5 (10.Qa8 Ba8 (10...Qa8?! 11.Ra8 Ba8 12.Bb5–/+) 11.Bb5 Bb7–+) 10...Ra1 11.Kd1 (11.Qb7 Rc1 12.Ke2 Nge7–+) 11...Qd7 12.Nd4 Bd6 13.Nc6 (13.Nb3 Ra2–+) 13...Qc6 (better is 13...Bc6 14.Qb6 Ba4 15.Ke2 Rc1 16.f3–+) 14.Qc6 Bc6 15.b5 Bb7 16.Bd3 Nf6 17.Ke2 0–0 18.Rd1 e5 19.f3 e4 20.fe4 de4 21.Bc4 Ba3 (better is 21...Rc8 22.d3–+) 22.Ba3 Ra3 23.Rb1 Rd8 24.b6 (24.Bb3 Bd5 25.Bd5 Nd5–+) 24...Rd6 25.g3 Nd7 26.h4 h5 (26...Ne5 27.Bb5–+) 27.Rf1 (27.Ke1 Ne5 28.Be2 Ra2–+) 27...Rf6 (27...Ne5 28.Bb5–+) 28.Rb1 (28.Rf6 Nf6 29.Kd1 Ba6 30.Ba6 Ra6–+) 28...Rb6 29.Rf1 (29.Rb6 Nb6 30.Bb5 Ba6 31.Ba6 Ra6–+) 29...Nf6 (better is 29...Ne5 30.Bf7 Nf7 31.Kf2–+) 30.Rf5 Ba6 31.Ba6 Rba6 32.Rb5 Rc6 33.Rb8 Kh7 34.Rb7 (34.Rb2 Kg6–+) 34...Ra2 35.Rf7 (35.Rb4 Nd5 36.Rd4 Nc3 37.Kf2 Rf6 38.Kg2 Nd1–+) 35...Nd5 (35...Rd6 36.Rg7 Kg7 37.Kd1 Rdd2 38.Kc1 Rdc2 39.Kb1 Nd5 40.g4 Nc3) 36.Rf5 (36.c4 Nc3 37.Kf1 Rd2–+) 36...Nc3 37.Kf2 Rd2 38.Ke1 Re2 (38...Nb1 39.Rh5 Kg8 40.Rc5 Rc5 41.h5 Rc1) 39.Kf1–+ Re3 40.Re5 Rf6 41.Kg2 Re2 42.Kh3 Rf1 43.Rh5–+ Kg8 44.Rc5 Re3 45.Kg4 Ra1 46.Kf4 Rd3 47.h5 Rf1 48.Ke5 e3 49.Rc8 Kh7 50.Rc7 e2 51.Rc3 e1Q 0–1. maddoxdb – parklane400377, gameknot.com, 2013. (=1.c3 d5 2.b4 b5)

2.c3 c6

3.a4 a5 4.Qb3 Na6 5.e3 Be6 (5...ab4!? 6.cb4 e5+=) 6.d4= Nf6 7.ba5 Rb8 8.Qb6 Qd7?? (better is 8...Bf5+=) 9.Ba6+– Qc8 10.Bd3 Ng4 11.a6 ba6 12.Qa6 Qc7 13.Bb5 (better is 13.Bc2+–) 13...cb5+/– 14.ab5 Bd7 15.Na3?? (better is 15.Qa5 Qa5 16.Ra5 Bb5 17.Nf3+=) 15...Qc3–+ 16.Ke2 Qa1 17.Nf3 Bb5! 18.Nb5 Qa6 19.Ne5 Qb5 20.Kf3 Nf6 21.Bd2 Ne4 22.Bc1 g5 23.g4 Nc3 24.Kg3 Ne4 25.Kg2?? Qe2–+ 26.Rf1 f6 27.Nf3 h5 28.h3 hg4 29.hg4 e6 30.Nd2 Qg4 0–1. maddoxdb – biscuit7, gameknot.com, 2012. (=1.c3 c6 2.b4 d5)

3.a4 e5+= 4.d4 Nd7 5.a5 Bd6 6.a6 Ngf6 7.ab7 Bb7 8.de5 Ne5 9.Bf4 a5 10.Qd4 Nfd7 +=. Gopinath Kuppan – Ramerat, internet, 2010.

3.Bb2 e5 4.a3 Bd6 5.e3 Be6 6.Nf3 f5 7.d3 Nf6 8.Be2 Nbd7 9.Nbd2 a6 10.0–0 0–0 11.e4 (11.c4 Qe7=) 11...fe4+= 12.de4 d4?? (better is 12...a5+=) 13.cd4+– ed4 14.Nd4 (better is 14.Ng5 Bf7 15.Nf7 Kf7 16.f4+–) 14...Bc7?? (14...Bf7 15.f4 c5 16.e5+–) 15.N2f3 (better is 15.Ne6 Qb8 16.Nf8 Kf8 17.Nf3+–) 15...Qe8 (15...Bf7!?+/–) 16.Ne6+– Qe6 17.e5 (17.Ng5!? Qe7 18.Qb3 Kh8+–) 17...Nd5 (better is 17...Be5!? 18.Ne5 Ne5+=) 18.Bc4 Kh8 (18...Be5? 19.Ne5 Ne5 20.Re1+–) 19.Bd5 cd5 20.Re1 Ne5?? (better is 20...Rae8+/–) 21.Ne5 (21.Be5 Qd7+–) 21...Be5 (21...Qf6 22.Re2 Rad8 23.Rc1 Be5 24.Be5+–) 22.Be5 Qe5 (22...Qf7 23.Ra2 Rac8+–) 23.Re5 Rad8 24.Re2 (24.Rd5 Rde8+–) 24...h6 (24...Rd7 25.Qd4 h6 26.Rae1+–) 25.g3 (25.Re7!? b6+–) 25...b5 (25...Rd7 26.Qd4+–) 26.Qe1 Rf6 27.Rd1 d4 28.Red2 (28.Re8 Rf8 29.Rf8 Rf8+–) 28...Rfd6 29.Qf1 (better is 29.Qe4 Rg8+–) 29...d3 30.Rd3 Rd3 31.Rd3 Rd3 32.Qd3 1–0. Fournier,Frederic (2010) – tuluavalle (1860), Active Blind, 2008.

3.d4 Bf5 4.Nf3 a5 5.Bf4 Nd7 6.a4 (6.b5!?=) 6...ab4–/+ 7.cb4 Qb6 (7...e5 8.de5 Bb4 9.Nbd2–/+) 8.Qd2 (8.Bd2 e5 9.a5 ed4+=) 8...h6 (8...Bb1 9.Rb1 Ra4 10.b5–/+) 9.Qb2 g5 (9...e5 10.Bd2 e4 11.a5+=) 10.Bd2 e6 11.e3 Bd6 12.Ne5 Ne7 13.Nd7 Kd7 14.b5 c5 (14...Qc7!?=) 15.a5+= Qc7 16.b6 Qc8 17.Bb5 Kd8?? (better is 17...Nc6 18.dc5 Bc5+/–) 18.Ke2 (better is 18.dc5 e5 19.cd6+–) 18...c4 19.Bb4 Bb4 20.Qb4 Nc6 21.Bc6 (21.Qc5!? Bd3 22.Ke1+/–) 21...Qc6 22.Nc3 h5 23.h3 g4 (23...f6 24.Nb5=) 24.h4 (24.hg4!? Bg4 25.Ke1+=) 24...Bd3= 25.Kd2 f6 26.g3 e5 27.Rhe1 Kd7 28.Qb5 Qb5 29.Nb5 Rhe8 30.de5 fe5 31.Na7?? Rf8–+ 32.a6 Rf2 33.Kc3 Rc2 34.Kb4 Rb2 35.Kc5 Ke6 36.ab7+– Rb8 37.Kc6 Rf2? 38.Nb5 Rf7 39.Nc7 Ke7 40.Ra8 Rf6 41.Kc5 Rb7 42.Nd5 Ke6 43.Nf6 Kf6 44.e4 c3 45.Kc6 Re7 46.b7 Re6 47.Kc7 Re7 48.Kc8 Re8+/– 49.Kc7 Re7 50.Kb8 Re6? 51.Ra3 Ba6 52.Ra6! Ra6 53.Kc7 Ra7 54.Kb6 Ra2 55.Kc7 Ra7 56.Kb6 Ra2 57.b8Q Rb2 58.Kc7 Rd2 59.Rf1 Ke6 60.Qe8# 1–0. Wally101 – BLUEMOONIE, ChessWorld.net, 2013.

3.d4 Nf6 4.Nd2 g6 (4...e6 5.Qc2+=) 5.a4 a5 6.Ngf3 Bg7 7.e3 0–0 8.Be2 Bf5 9.Nh4 (9.0–0 ab4 10.cb4 Qd6=) 9...Bc8 (9...ab4 10.cb4 Bc8 11.0–0=) 10.0–0 Nbd7 (10...ab4 11.cb4 Ne4 12.Qb3=) 11.g3 (11.Nhf3!?=) 11...e5+= 12.Ng2 (12.b5 Re8+=) 12...Re8 (12...ed4 13.ed4 ab4 14.cb4+=) 13.Nb3 (13.b5 c5+=) 13...Ne4 (13...ed4 14.Nd4 Qe7 15.ba5–/+) 14.Qe1 (14.Bb2 ed4 15.Nd4 Ne5+=) 14...ed4–/+ 15.Nd4 Ne5 (15...Qb6 16.Nf4–/+) 16.f3 White prepares b5 16...Nd6 17.b5 c5 18.Nc2 b6 (18...Bf5 19.Na3–/+) 19.Nf4 Bb7 20.Bb2 (20.Qd1!?+=) 20...Nec4–/+ 21.Bc4 (21.Qc1 Qf6–/+) 21...Nc4–+ (21...dc4?! 22.Rd1+=) 22.Qc1 Qf6 23.Ne2 (23.Kg2 Rad8–+) 23...Qf5 (better is 23...Re5–+) 24.Kg2?? (24.Nf4 Rad8–+) 24...Qd3 (better is 24...Qc2! 25.Qc2 Ne3 26.Kf2 Nc2–+) 25.Kf2 Bh6 26.f4 (26.Nf4 Nb2 27.Qb2 Qd2 28.Kg1 Bf4 29.gf4 Re3–+) 26...Bg7 27.Rd1 (27.g4 Rad8 28.Rd1 Qe4–+) 27...Qf5 28.Rb1 (28.Ng1 Qe4 29.Nf3 d4–+) 28...Qh3 29.Rh1 (29.Rf1–+) 29...d4 30.Qg1 (30.Qf1 Qh5 31.cd4 Nd2–+) 30...dc3 (better is 30...de3 31.Ke1 Qf5 32.Rc1 Nb2 33.g4 Nd3 34.Kd1–+) 31.Ke1 (31.Bc3 Qf5 32.Bg7 Kg7 33.Rc1–+) 31...Nd2 0–1. Sapareva,Magdalena (1665) – Bochev,Krasimir (2130), Teteven BUL, 2011.

3.e3 f5 4.a4 a6 5.Qb3 Be6 6.c4 dc4 7.Bc4 Bc4 8.Qc4 Nf6 9.Bb2 Nd5 10.Nf3 Nd7 11.Ng5 N7b6 12.Qb3 h6 13.Ne6 Qd6 14.Nd4 (worse is 14.Bg7 Rg8 15.Bd4 Qe6 16.Bb6 Qe4–/+; 14.Nf8?! Rf8 15.0–0 e5=) 14...Nb4 15.Ba3 (15.Nf5 Qc5 16.0–0 Qc4+=) 15...c5 16.Nb5?? (better is 16.Bb4 cb4 17.Nf5=) 16...Qd3 (better is 16...ab5 17.ab5 Nd3 18.Ke2 Rd8–+) 17.Qd3 Nd3 18.Ke2 Rd8 19.Nc7 Kd7 20.Kd3 Kc7 21.Ke2 g5?? (better is 21...Na4 22.d4 e6–+) 22.Bc5= Nc4?? 23.Rc1+– Ne5 24.a5?? Nd3 25.Bb6 Kd6?? 26.Kd3+– Rd7 27.Rc4 Ke5 28.Ke2 Bg7 29.Bd4 Kd5 30.Rc5 Kd6 31.Rf5 Ke6 32.Rc5 Bd4 33.ed4 Rd4 34.Rc7 Re4 35.Kf1 Rf8 36.Nc3 Rd4 37.Re1 Kf6 38.Ree7 Kg6 39.g3 Rd2 40.Ne4 Rd4 41.Rg7 Kf5 42.Nc5 Rd1 43.Kg2 Rd2 44.Nb7 Kf6 45.Rh7 Kg6 46.Rcg7 Kh5 47.Kh3 Rd4 48.Rf7 g4 49.Kg2 Rf7 50.Rf7 Kg6 51.Rf4 Rd7 52.Nc5 Rd6 53.Rg4 Kf5 54.Rf4 Ke5 55.Nb3 Rd3 56.Nc5 Rc3?? 57.Nd7 Ke6 58.Nf8 Kd5 59.Rf6 Kd4 60.Ra6 Kd3 61.Rh6 Rc7 62.a6 Rc8 63.Rf6 Ra8 64.Nd7 Ra7 65.Rd6 Ke4 66.Nc5 Ke5 67.Nb7 Ra6 68.Ra6 Kf5 69.h4 Kg4 70.Ra4 Kf5 71.Rf4 Ke5 72.Kf3 Kd5 73.h5 Kc6 74.h6 Kb7 75.h7 1–0. maddoxdb – bears1, gameknot.com, 2013. (=1.c3 d5 2.b4 c6)

3.e3 f6 4.Nf3 g5 5.h3 h5 6.d4 Nd7 7.Be2 b5?? (7...Nh6 8.Nfd2+=) 8.Bb2?? (better is 8.Ng5 Ne5 9.de5 fg5 10.Bh5 Kd7 11.a4+–) 8...Bb7?? (8...e5 9.a4 ba4 10.Qa4+=) 9.a3 (better is 9.Ng5 Ne5 10.Ne6+– (10.de5?! fg5 11.Bh5 Kd7+–)) 9...Qc7 10.Nbd2 (10.a4 ba4 11.Nfd2 Nb6+=) 10...0–0–0 (10...Nb6 11.e4+=) 11.Bd3 Kb8 12.Qc2 (12.a4 a6+/–) 12...Ka8 (12...e5 13.de5 Ne5 14.a4 Nd3 15.Qd3 ba4 16.Nd4+=) 13.0–0–0 (better is 13.a4!? Qb6 14.ab5 cb5 15.Ra5+/–) 13...a6 14.Kb1 e5 15.de5 fe5?? (better is 15...Ne5 16.h4 Nd3 17.Qd3 g4=) 16.Ne4?? (better is 16.Ng5 Rh6 17.Nf7+–) 16...de4–+ 17.Be4 Ndf6 (17...Bh6!?–+) 18.Rd8 Qd8 19.Rd1 Qc8 20.Ka1 (20.Bf5!? Qe8 21.Ng5=) 20...Ne4–/+ 21.Qe4 Bg7 22.Nd2? (22.Ng5 Ne7 23.Qd3 c5–/+) 22...Nf6 (better is 22...Ne7 23.Qd3 c5–+) 23.c4?? (better is 23.Qe5 g4 24.c4–+) 23...Ne4 24.Ne4 bc4 25.Rc1 (25.f3 Rd8 26.Rc1 Qf5–+) 25...Rh7 (25...c5 26.Nd6 Qc7 27.bc5 Bg2 28.Rc4 Bh3 29.e4–+) 26.Nc3 (26.Ng5 Rh6 27.Rc4 Qf5–+) 26...Bf6 (better is 26...c5 27.Na4 Qc6 28.Nc5 Qg2 29.Rc4 Qh3 30.Rc1–+) 27.Na4 (27.Ne4 Be7 28.Nd2–+) 27...c5 (better is 27...Ka7 28.Nc5–+) 28.Nc5 (28.Nb6 Kb8 29.Nc8 Kc8 30.Rc4 Bg2 31.Rc5 Rc7 32.Ra5–+) 28...e4 (better is 28...Bg2 29.Rc4 Qh3 30.Na6–+) 29.Bf6 Bd5 (better is 29...Qf8 30.Bd4 Qf2 31.Na4–+) 30.Bb2 Rf7 31.Na6 (31.Rd1 Bc6 32.Rd2 Qc7 33.Na6 Qh2–+) 31...Bb7 (31...Qa6 32.Rd1 c3 33.Bc1 Rf2 34.Rd5 Qe6 35.Ra5 Kb7 36.Rb5 Kc7 37.Rc5 Kd7 38.Rc7 Kc7 39.Bb2 Rf1 40.Bc1 Rc1) 32.Nc5 Rc7 (better is 32...Rf2 33.Na4 Qc6–+) 33.Rc4 Rc5! 34.Rc5 (34.bc5 Bc6 Combination; 34.Rc5 Qg8 Combination) 34...Qc5?? (better is 34...Qg8–/+) 35.bc5+– Bc6 36.Bd4 Bd7 37.g3 (37.Kb2 g4+–) 37...g4 (better is 37...Bh3!? 38.Bf6 g4+–) 38.hg4+– hg4 39.Kb2 Bf5 (39...Kb7 40.Kc3 Kc6 41.a4+–) 40.Kc3 Bd7 41.Kd2 (better is 41.Bf6!? Bb5+–) 41...Kb7 42.Bc3 (42.Kc2 Ka6+–) 42...Bc6 (better is 42...Kc6!?+–) 43.Bb4 Bb5 (43...Kc7+–) 44.Bc3 (44.Kc3!? Be2+–) 44...Ba4?? (44...Bc6 45.Be5+–) 45.Bb4 Be8?? (45...Bb5 46.Kc3 Be2+–) 46.Kc3+– Bf7 47.Kd4 Bg6 48.Ke5 Be8 49.Kd6 1–0. Fournier,Frederic (1850) – ChateaConmigo (1610), Active blind, 2011.

3.e3 h6 4.Nf3= g6 5.d4 Bg7 6.Bd3 Nf6 7.Bb2 b6 8.0–0 Bb7 (8...a5 9.ba5 Ra5 10.Nbd2=) 9.Nbd2 Nbd7 10.Qc2 0–0 11.Rfe1 Kh7 (11...c5 12.bc5 bc5 13.c4=) 12.a3 a5 13.e4 ab4 14.ab4 de4 15.Ne4 Ne4 16.Be4 (worse is 16.Re4 Ra1 17.Ba1 c5+=) 16...Ra1 17.Ba1 c5?? (better is 17...f5 18.Bd3 c5=) 18.Bb7+– cd4 19.cd4 Qc7 (19...e6+–) 20.Qc7 1–0. Fournier,Frederic (1810) – tumachov, Active, 2011.

3.Bb2 Nf6

4.e3 e6 5.Nf3 Be7 6.d4 0–0 7.Bd3 a5 8.a3 Na6 9.Nbd2 ab4 10.ab4 b6 11.0–0 c5 12.bc5 bc5 13.Re1 cd4 14.cd4 Qb6 15.Qb1 Bb7 16.Rc1 Nc7 (16...Nb4 17.Ba3=) 17.Ra8 Ra8 18.Bc3 (18.Ba3! Qb1 19.Nb1+=) 18...Qb1= 19.Rb1 Ra7 20.Bb2 (20.Bb4 Bb4 21.Rb4 Ra1 22.Bb1 Ba6=) 20...Na6 21.Bc1 (better is 21.Ra1=) 21...g6 (21...Nb4 22.Be2+=) 22.Ba6 (better is 22.Rb7 Rb7 23.Ba6=) 22...Ba6+= 23.Nb3 Nh5 (23...Bd3 24.Ra1 Ra1 25.Na1+=) 24.Nfd2 (24.Ra1 Ra8+=) 24...Bf6 (better is 24...Bd3!? 25.Rb2 Nf6+=) 25.Ra1 Kg7?? (25...Ra8 26.Nc5 Bb7 27.Ra8 Ba8 28.Ba3=) 26.Ba3?? (26.g4 Bd4 27.Nd4 Nf6+–) 26...e5? (26...Bd8 27.Bd6 Ra8 28.g4+/–) 27.de5?? (better is 27.Bc5 Ra8 28.g4+–) 27...Be5+= 28.Rc1 (28.Bc5 Ba1 29.Ba7+=) 28...d4 (better is 28...Be2 29.f4 Ra3 30.fe5 Bc4=) 29.ed4+/– Bd4?? (better is 29...Bb8+/–) 30.Nd4+– Nf6 31.Bc5 Re7 (31...Ra8+–) 32.Be7 h5 (32...Nd5 33.Bd6 Bb7 34.Ne4+–) 33.Bf6 Kf6 34.Ne4 (better is 34.Rc6 Ke5 35.N2f3 Ke4 36.Ra6 Kd5+–) 34...Kg7 (34...Ke5 35.Nc5 Kd4 36.Na6+–) 35.f3 (35.Rc7!? Kg8+–) 35...Kh6 (35...Bb7 36.Ne6! fe6 37.Rc7 Kf8 38.Rb7+–) 36.Nc6 1–0. Fournier,Frederic (1990) – Radka, Active Blind, 2008.

4.e3 Bf5 5.Nf3 Bb1 (5...Nbd7!?+=) 6.Rb1= e5 (6...Nbd7 7.c4=) 7.d3 (better is 7.Ne5!? Bd6 8.c4+/–) 7...Nbd7 8.Be2 c5 9.a3 cb4 10.ab4 b5 11.0–0 a6 12.Qc2 Bd6 13.Ra1 (13.c4 bc4 14.dc4 e4+=) 13...0–0 14.Rfd1 d4? (better is 14...Qc7!? 15.Qd2 a5=) 15.cd4 ed4 16.Bd4 (better is 16.Nd4!? Bb4 17.Nc6+/–) 16...Bb4+= 17.Rdb1 Ba5 18.Qa2 Bb6 19.Bb6 Nb6 20.d4 Nbd5 21.Ne5 (better is 21.Rb3=) 21...Nb4?? (better is 21...Nc3 22.Qc2 Nb1–/+) 22.Qb3 (better is 22.Rb4 Nd5 23.Rb2+–) 22...a5 (22...Nbd5 23.Rc1 Rc8 24.Rc8 Qc8 25.Qa3+/–) 23.Bf3 (better is 23.Bb5 Ne4 24.Rb2+–) 23...Nfd5? (better is 23...Rc8+=) 24.Bd5+– Nd5 (24...Qd5 25.Qd5 Nd5 26.Rb5 Nc3+–) 25.Qd5 (better is 25.Nc6 Qg5 26.Qd5 Qd5 27.Ne7 Kh8 28.Nd5+–) 25...Qd5–+ 26.Rc1 f6 (better is 26...Rfc8!? 27.Rd1–+) 27.Rc6 (27.Nc6 Rf7 28.Rc5–+) 27...fe5 (27...fe5 28.Rc5 Qf7–+) 0–1. Fournier,Frederic (1895) – bothrops, Active blind, 2011.

3.e3 e5

4.Bb2 Qf6 5.Nf3 Nd7 6.d3 Nb6 7.Be2 Bf5 8.Nbd2 0–0–0 9.a3 Re8 (9...Bd3 10.Bd3 e4 11.Be2 ef3 12.Nf3=) 10.Qc2 (10.c4 dc4 11.dc4 Nd7+=) 10...e4 (10...Bd6 11.e4 Be6 12.c4 dc4 13.dc4+=) 11.de4+= Re4? (11...de4!? 12.Nd4 Nh6+=) 12.Ne4 (12.Bd3 Qe7 13.0–0 Nf6+–) 12...Be4+/– 13.Qe4?? (better is 13.Qb3+/–) 13...de4–+ 14.Nd4 Bd6 15.0–0 Be5 (15...Qe5 16.g3 Na4 17.Ra2–+) 16.g3 (16.Rad1 Ne7–+) 16...Bd4 (16...h5 17.Rad1–+) 17.cd4 Nd5 18.Rac1 Kd8 19.Rc2 Nge7 20.Rfc1 h5 21.Bf1 (21.h3 Qg6 22.Kh2 Qd6–+) 21...g5 (21...h4 22.Bg2 hg3 23.hg3–+) 22.Bg2 h4 (22...Qe6 23.a4–+) 23.a4 (23.Be4 hg3 24.hg3 Qe6–+) 23...hg3 (worse is 23...Nb4 24.d5 Qd6 25.Bh8 Nc2 26.Rc2 cd5 27.Bc3–+) 24.hg3 Qh6 (worse is 24...Nb4 25.d5 Qd6 26.Bh8 Nc2 27.Rc2 cd5 28.Bf1–+) 25.b5 cb5 26.ab5 Qh2 27.Kf1 f5 28.Rc8 (28.Ba3–+) 28...Nc8 29.Rc8 (29.Ba3 Qh5 30.Ke1 Qg4–+) 29...Kc8 30.b6 ab6 0–1. Fournier,Frederic (1840) – sasuke09 (2120), Active blind, 2011.

4.d4 e4 5.Ba3 +=.

4.d4 e4 5.Qb3 +=.

3.e3 Bf5

4.Bb2 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.c3).

4.Nf3 Bg6 5.d4 e6 6.Bd3 Bd3 7.Qd3 Nf6 8.Nbd2 =.

4.Nf3 Bg6 5.d4 e6 6.Bd3 Bd3 7.Qd3 g6 8.0–0+= Bg7 9.Bb2 Ne7 10.Qd1 0–0 11.Nbd2 Nd7 12.Re1 b6 13.Qc2 c5 14.dc5 bc5 15.a3 c4 16.Rad1 Nc8 (16...f5 17.e4 fe4 18.Ne4=) 17.e4+= Ncb6 18.ed5 ed5 19.Nf1 Re8 20.Re8 Qe8 21.Ne3 Attacking the backward pawn on d5 21...Nf6 22.Nd5?? (better is 22.Nd4=) 22...Nfd5–+ 23.Re1 Qb5 24.Bc1?! (24.Nd4 Re8 25.Qd2 Re1 26.Qe1 Qd7–+) 24...a5 (24...Qa4 25.Qa4 Na4 26.Nd4–+) 25.Be3 (25.Bd2 ab4 26.ab4 Qa4–+) 25...Ne3 (25...Bc3 26.Rb1 ab4 27.ab4 Bb4 28.Bd4–+) 26.Re3 (26.fe3 Qa4 27.Qc1 ab4 28.ab4 Qa3–+) 26...ab4 27.ab4 (27.cb4 Bh6 28.Re5 Ra3–+) 27...Na4 (27...Nd5 28.Re1 Nc3 29.Qd2–+) 28.Re1 (28.Kf1–+) 28...Nc3 29.Qc3 (29.Qd2–+) 29...Bc3 (29...Bc3 30.Rf1 Ra2–+) 0–1. Fournier,Frederic (1695) – bvba (1660), Club Buho21 Buho21.com, 2011.

4.Nf3 Bg6 5.d4 e6 6.Bd3 Bd3 7.Qd3 g6 8.Bb2 Bg7 9.a3 Ne7 10.Nbd2 Nd7 11.0–0 Rc8 12.h3 b6 13.Rfe1 c5 14.e4 0–0 15.ed5 Nd5 16.dc5 (16.c4!? Ne7 17.Ra2+=) 16...bc5= 17.Rac1 (17.b5 Qc7+=) 17...cb4+= 18.ab4 N7b6 The pressure on c3 grows 19.Qb1 (better is 19.Qa6+=) 19...Rc6?? (better is 19...Na4 20.Ne4 Qb6–/+ (20...Nac3?! 21.Qa1=)) 20.c4+= Bb2 21.Qb2 Nc4?? (21...Nf4 22.Ne5 Qg5+–) 22.Nc4+– Rc4 (22...Qb8 23.Nd4 Rcc8+–) 23.Rc4 Qb6 24.Rcc1 (24.Rec1 a5+–) 24...Rb8 (24...Qb4 25.Qb4 Nb4 26.Rc7+–) 25.Rb1 a5 26.ba5 (better is 26.Ne5 Qb7 27.b5+–) 26...Qb2+/– 27.Rb2 Rb2 28.Ra1 Rb8 29.a6 Ra8 30.a7 Ra7?? (better is 30...Kf8+/–) 31.Ra7+– Nb6 (31...f6+–) 32.Ra8 (better is 32.Ng5+–) 32...Na8–/+ 33.Kf1 Nb6 34.Ke1 f5 35.Nd2 Nd5 36.g3 Kf7 37.h4 h5 38.Kd1 Nf6 39.Kc1 e5 40.Nf1 Ke6 41.Ne3 e4 42.Kd2 Ke5 43.Nc2 Nd5 Black prepares the advance f4 44.Nd4?? (44.Na3 f4 45.Nc4 Kd4–+) 44...e3! 45.fe3 f4?? (better is 45...Ke4 46.Ke2 f4–+) 46.ef4?? (46.Nf3 Kf5 47.gf4+/–) 46...Kd4–+ 47.Ke1 Nc3 48.Kf2 Ne4 (48...Ne4 49.Kf3 Ng3 50.Kg3 Ke3–+) 0–1. Fournier,Frederic (1660) – bvba (1695), Club Buho21 Buho21.com, 2011.

3.e3 Nf6

4.Bb2 Bf5 5.a3 Bg6 6.Nf3 e6 7.d4 Nbd7 8.Bd3 Bd3 9.Qd3 Bd6 10.Nbd2 a6 11.0–0 Qc7 12.Rfe1 0–0–0 13.Rac1 Kb8 14.e4 (14.c4 Ng4 15.h3 Ngf6+=) 14...de4= 15.Ne4 Ne4 16.Re4 Nf6 17.Ree1 e5 (better is 17...Rhe8=) 18.Ne5?? (better is 18.de5 Be5 19.Qf5+/–) 18...Be5–/+ 19.de5?? (better is 19.Re5 Qe5! 20.de5 Rd3 21.ef6–/+) 19...Rd3–+ 20.ef6 gf6 21.g3 (21.Re2 Rhd8 22.Rce1 Rd1–+) 21...Rdd8 (better is 21...Rd2!? 22.Rb1 Qb6 23.Rf1–+) 22.c4 h5 (22...Qd6 23.c5 Qd2 24.Bc3–+) 23.Kg2 (23.Bf6 Rhe8 24.Bd8 Qd8–+) 23...h4 (better is 23...Qd6 24.Rcd1 Qd1 25.Rd1 Rd1 26.c5–+) 24.c5 (24.Bf6 h3 25.Kf1–+) 24...hg3 25.hg3 Ka7 (25...Qd7 26.Re4 Qh3 27.Kf3–+) 26.Re2 (26.Bf6 Qd7 27.Bd8 Qd5 28.f3 Qa2 29.Kg1 Rd8–+) 26...f5 (26...Qd7 27.Rce1 Qh3 28.Kf3 Qf5 29.Kg2 Rd3 30.Kg1 Qf3 31.Bf6 Rh1) 27.Bh8 Rh8 28.Rce1 f4 29.gf4 (29.Re4 fg3 30.fg3 Qd8–+) 29...Rg8 (better is 29...Qf4 30.Rg1 Rg8 31.Kf1 Qc1 32.Re1 Qc4 33.Re2 Re8–+) 30.Kf1 Rh8 31.f3?? (31.Kg2 Qf4 32.Rg1–+) 31...Qc8 (better is 31...Qf4 32.Rg2 Rh1 33.Kf2 Qh4 34.Rg3 Rh2 35.Ke3 Qg3 36.Rd1 Qe5 37.Kd3 Qe2 38.Kc3 Qd1 39.Kc4 Rc2 40.Kb3 Rd2 41.Kc4 Qc2) 32.Rg2 (32.Kf2 Qd7 33.Kg3 Qd8–+) 32...Rh3 (32...Qh3 33.Ree2 Qf3 34.Kg1 Qa3 35.Ref2–+) 33.Kf2 Qh8 34.Re3 (34.Re5 Qh4 35.Ke2 Rh1–+) 34...Qh6 (better is 34...Qb2 35.Re2 Qd4 36.Re3–+) 35.Re2 (35.Rd3 Qf6 36.Ke3 Rh8–+) 35...Rh5 (35...Qf4 36.Re3–+) 36.f5 (36.Re4 Qf6 37.a4 Rh3–+) 36...Rh4 (36...Rf5 37.Re4 Qd2 38.Kg3–+) 37.Re4 (37.Re1–+) 37...Re4 38.fe4 Qh7 (better is 38...Qf4 39.Kg1–+) 39.Kf3 (39.Rg3–+) 39...Qh6 (39...Qh1!? 40.Kf2–+) 40.Rg3?? (40.Kf2 Qf4 41.Ke1 Qe3 42.Re2 Qa3–+) 40...Qh7 41.Rg4?? (41.Rg2 Qh1–+) 41...Qh6 42.Rf4?? (42.Rg3 a5 43.ba5–+) 42...Qh8 (42...Qh3 43.Ke2 Qa3 44.e5 Qb2 45.Kf3 Qe5 46.Kg4–+) 43.f6 (43.Kg4 Qg7 44.Kh3 Qb2–+) 43...Qh7 (43...Qh3 44.Kf2–+) 44.e5 (44.Kg3 Qh5–+) 44...Qh6 (better is 44...Qh3 45.Ke4–+) 45.Ke4 Qh7 (45...Qh7 46.Kf3 Qh3 47.Ke4 Qa3–+) 0–1. Fournier,Frederic (1820) – pacman1987 (1835), Active Blind, 2011.

4.b5 e6 5.bc6 Nc6 6.Bb5 a6 7.Bc6 bc6 8.Nf3 g6 9.Ba3 Bg7 10.Nd4 Ne4 (better is 10...Qc7+=) 11.f3?? (better is 11.d3 Nf6 12.Nc6=) 11...Qh4–+ 12.g3?? (better is 12.Ke2 Qf2 13.Kd3–+) 12...Ng3! 13.Rf1 (13.hg3 Qh1 Pinning (13...Qh1 Deflection)) 13...Nf1 14.Kf1 Qh3 15.Kg1 e5 16.Nc6 Bb7 17.Nb4 d4 18.e4 Qh5?? 19.Qf1?? Qg5 20.Qg2 Qh4 21.Nd3 Rc8 22.Bd6? Rc6 23.Be5 Be5 24.Ne5 Rc5 25.Nd3 0–0 26.Nc5+– Bc8 27.Qg3 Qe7 28.cd4 Qf6 29.Nc3 Qd4 30.Qf2 Qf6 31.d4 a5 32.e5 Qf4 33.N3e4 f5 34.Ng3 Rd8 35.Ne2 Qd2 36.Nb3 Qg5 37.Qg3 Qe7 38.Na5 Qa3 39.Qg5 Re8?? 40.Nb3 Qb2 41.Nf4 Bb7 42.Qg2 Qc3 43.Ne2 Qe3 44.Qf2 Qd3 45.Nf4 Qb5 46.Qe2 Qe2 47.Ne2 Bf3 48.Kf2 Bd5 49.Nf4 g5 50.Nh5 Rd8 51.Rg1 g4 52.h3 Bb3 53.ab3 Rd4 54.Nf6 Kf7 55.hg4 fg4 56.Ng4 Rb4 57.Rg3 h5 58.Nh6 Ke6 59.Re3 h4 60.Kg2 Rb6 61.Ng4 Rb7 62.Kh3 Rh7 63.Nf6 Rh6 64.Re4 Kf5 65.b4 Rh8 66.b5 Rb8 67.Rb4 Ke5 68.Nd7 (68.Nd7 Kd5 69.Nb8+–) 1–0. maddoxdb – genpel, gameknot.com, 2012. (=1.c3 d5 2.b4 c6 3.e3 Nf6)

4.Nf3 Bf5 5.Bb2 Bb1 (5...Nbd7 6.Nh4 Bg4 7.f3+=) 6.Rb1= Nbd7 7.d4 Qa5?? (better is 7...e6=) 8.ba5+– b6 (8...e6 9.Bd3+–) 9.ab6 ab6 10.a3 e6 11.Bd3 Be7 12.0–0 b5 13.Qe2 (better is 13.Ra1 Ra4+–) 13...b4 (13...0–0 14.Ra1+–) 14.cb4 Bb4 15.ab4 Ra1 16.Ra1 0–0 17.Rfc1 Rb8 18.b5 (better is 18.Rc6!? g6+–) 18...cb5 19.Bb5 Rb5 20.Qb5 Nc5 21.dc5 (21.Ra8 Ne8 22.Qe8) 21...Ne4 (21...g6 22.Bf6 h5 23.Ra8 Kh7 24.Rh8) 22.Qb7 (22.Ra8) 22...Ng3 (22...h6 23.Ra7 d4 24.Qf7 Kh7 25.Qg7) 23.hg3 (23.Ra8) 23...d4 (23...h6 24.Ra7 Kh7 25.Qf7 d4 26.Qg7) 24.ed4 (24.Ra8) 24...e5 (24...h6 25.Ra7 Kh8 26.Qf7 Kh7 27.Qg7) 25.de5 (25.Ra8) 25...g6 (25...h6 26.Qc8 Kh7 27.Qf5 g6 28.Qf7 Kh8 29.e6) 26.Ra8 1–0. Fournier,Frederic (1830) – mateusplima (1680), Active blind, 2011.

4.Nf3 Bg4 5.Be2 e6 6.d4 a6 7.h3 Bh5 8.Bd3 Bg6 9.Bg6 hg6 10.Nbd2 b5 (10...a5 11.ba5 Qa5 12.Qc2+=) 11.Qc2 Nbd7 12.Bb2 Rc8 13.0–0 c5 (better is 13...a5!?=) 14.bc5 a5 (14...Qc7 15.a4+/–) 15.Rab1 (15.a4 ba4 16.Qa4 Ra8+–) 15...b4 (15...Be7 16.Ba3+–) 16.cb4 ab4 17.Rfe1 Rb8? (17...Qa5 18.Qb3+/–) 18.a3 (better is 18.c6!? Rc8 19.cd7 Nd7 20.Qb3+–) 18...ba3 19.Bc3 (19.Ba3 Ra8 20.Bb4 Qc7+–) 19...Rb1 20.Rb1 Be7 21.Ra1 0–0 22.Qb1 Qc7 23.Qb3 Rb8 24.Qa3 Nb6? (better is 24...Rb7+–) 25.cb6 Rb6 26.Qc1 Kh7 27.Bb2 Rc6 28.Qb1 Bc5 (28...Rb6+–) 29.dc5 Rc5 (29...Qe7 30.Ng5 Kg8 31.Bf6 gf6 32.Ra8 Qf8 33.Qb7 fg5 34.Qc6 Qa8 35.Qa8 Kg7 36.c6 g4 37.hg4 f6 38.c7 f5 39.c8Q Kh6 40.Qh8 Kg5 41.f4 Kg4 42.Qh3) 30.Bf6 (better is 30.Ng5 Kh6 31.Ra8 Kg5+–) 30...gf6 31.Nf1 e5 32.N3d2 Kg7 33.Ra2 e4 34.Rb2 Qe5 35.Rb8 f5 (35...Qc7 36.Rb7 Qe5 37.Qb6+–) 36.Rb7 (better is 36.Qb6 Rc7+–) 36...d4 (36...Rc7+–) 37.ed4 Qd4 38.Rb4 (better is 38.Nb3 Rb5 39.Rb5 Qc3+–) 38...Qd5 39.Ne4! fe4 40.Rb5 (better is 40.Re4 Qf5 41.Ng3+–) 40...Rb5–+ 41.Qb5?? (41.Qa1 Qe5 42.Qe5 Re5 43.Nd2–+) 41...Qb5 0–1. Fournier,Frederic (1815) – crener, Active blind, 2011.

4.Nf3 g6 5.c4 Bg7 6.Bb2 0–0 7.c5 b6 8.cb6 Qb6 9.a3 Ne4 10.Bg7 Kg7 11.Qc2 Ba6 12.Ba6 Qa6 13.d3 Nd6 14.Qc3 f6 15.Nd4 e5? (15...Nb5 16.Nb5 cb5 17.Qc5+=) 16.Ne2?? (better is 16.Ne6 Kf7 17.Nf8 Kf8 18.Qc5+–) 16...Nd7= 17.Qb3 e4 18.d4 Nb6 19.0–0?? (better is 19.Nd2=) 19...Qe2–+ 20.Nc3 Qh5 21.h3 Nf5 22.Ne2 (22.Na4 Nc4–+) 22...Nh4 (better is 22...Qe2 23.Rfc1 Nc4–+) 23.Ng3 Qg5 24.Rac1 f5 25.Rc6 f4 26.ef4 Rf4 27.Qe3 Nc4 28.Rc7 Kg8 29.Kh2 (29.Qc1–+) 29...Ne3 30.Rfc1 Rf2 31.Rb7 Ng4! 32.hg4 (32.hg4 Nf3 Mate attack) 32...Qc1 (32...Nf3 33.Kh1 Qh4) 33.Kh3 g5 34.Nh5 (34.Rg7 Kg7 35.Nf5 Nf5 36.Kh2 Qf4 37.Kh3 Qg3) 34...Qh1 35.Kg3 Qg2# 0–1. maddoxdb – torden42, gameknot.com, 2011. (=1.c3 d5 2.b4 c6 3.e3 Nf6)

3.Nf3 Bf5

4.d3 e6 5.Bf4 (5.Nbd2 Nf6=) 5...Na6 (5...Bd6 6.Bd6 Qd6 7.Nh4=) 6.Na3 (6.e3 Nf6=) 6...Nf6 7.Nh4 (7.Nc2 Bd6 8.Bd6 Qd6=+) 7...c5 (better is 7...Nh5!? 8.Nf5 Nf4–/+ (8...ef5?! 9.Bd2=)) 8.b5 (better is 8.Qa4 Nd7 9.Nf5=) 8...Nh5? (8...Nb8 9.Nf5 ef5 10.Qd2=) 9.Be5?? (better is 9.ba6 Qa5 10.Bd2 (< 10.Nf5 Nf4 11.Qb3 ef5+/–) 10...Qa3 11.e4+–) 9...Qd7?? (better is 9...Qh4!? 10.ba6 A) < 10...ba6 11.e4 de4 12.Qa4 Kd8 13.g3+= (13.Qa6?! e3 14.g3 ef2 15.Kf2 Qg5=); B) 10...b6=) 10.g3 c4? 11.dc4?? Ba3 12.ba6 Bb2? 13.Rb1 Bc3? 14.Bc3+– Bb1 15.Qb1 ba6 16.Ng2 dc4 17.Ne3 Qc7 18.Ng4 Qc6 19.Rg1 f5? 20.Ne5 Qb5+/– 21.Qd1 Rf8? 22.e3 Rd8 23.Qh5?? g6–+ 24.Qh7?? Qb1 25.Ke2 Qd1# 0–1. tuergeist – Biber, mySchach.de, 2005.

4.d3 Nf6 5.Bf4 e6 6.Qb3 (6.Nd4 Bg6+=) 6...Bd6+= 7.Bd6 Qd6 8.Nh4 0–0 9.Nd2 Nbd7 (9...Qf4 10.Ndf3+=) 10.Ndf3 (10.e3 b6+=) 10...Bg4 11.h3 Bh5 (11...Bf3 12.Nf3 a5 13.g4–/+) 12.c4 (12.g4 Bg6=) 12...e5 (12...Bf3 13.Nf3 a5 14.ba5–/+) 13.c5 (13.g4 Bg6=) 13...Qc7 14.Nf5 (14.g4 Bg6+=) 14...e4 (14...Kh8 15.g4 Bg6 16.N5h4+=) 15.de4 (15.N3d4 ed3 16.Qd3 Ne4+=) 15...Ne4 16.Qb2 Ndf6 17.Qe5 (17.g4!? Bg6 18.Ng7 Kg7 19.g5=) 17...Qe5+= ½–½. Schaper,Jan Erik – Haversick,Axel, Schleswig Holstein–ch B, 2009.

2.c3 Nc6

3.Bb2 Bf5 4.d3 e6 5.a3 Nf6 6.h3 g6?? (better is 6...e5+=) 7.g4+/– Qd6 (better is 7...Ng4!? 8.hg4 Bg4+/–) 8.gf5+– gf5 9.a4 Bh6 10.Ba3 d4 (10...Ne5 11.b5 Qb6 12.d4+–) 11.b5 Qe5?? (11...Qd5 12.Nf3 Ne5+–) 12.bc6 b6 13.Bb2 Nd5 14.cd4 Qf4 15.e3 (15.Nf3 Qd6 16.Qc2 Nb4+–) 15...Qh4 (15...Ne3 16.Qd2 Nf1 17.Qf4 Bf4 18.Kf1 Rg8+–) 16.Nf3 Qf6 17.e4 Nf4 18.Ra2 0–0–0 19.d5 e5 20.Be5 Qg6 21.Bh8 Rh8 22.Rg1 Qh5 23.Ne5 Qh4 24.ef5 Re8 25.d4 Nd5 26.Re2 Qh5 27.Nf7! Qf7 28.Re8 Qe8 29.Qe2 Nf6 30.Qe8 Ne8 31.Ba6 Kd8 32.Nc3 Nd6 33.f6 Ke8 34.Nd5 Kf8 35.Nc7 Ne4 36.d5 Nf6 37.d6 Ne4 38.Bc4 Nd6 39.Rg8 Ke7 40.Nd5 Ke6 41.c7 Nc4 42.c8Q Kd5 43.Qf5 Kc6 44.Rc8 Kd6 45.Rc4 Bg7 46.Qh7 Be5 47.Qc7 Kd5 48.Qc6 1–0. kevtheman – chezter, gameknot.com, 2011. (=1.c3 Nc6 2.b4 d5)

3.Bb2 Nf6 4.a3 Bf5 5.d3 e6 6.e4 (better is 6.Nf3!?+=) 6...de4–/+ 7.de4 Be4 8.Qd8 Rd8 9.f3 Bd5?? (9...Bc2 10.Nd2–+) 10.h4?? (10.c4 Bc4 11.Bc4 a5+/–) 10...g6?? (10...Bd6!? 11.Nh3 Bg3 12.Nf2–+) 11.h5?? (11.c4 e5 12.cd5 Nd4+/–) 11...g5?? 12.c4+/– Bc4? 13.Bf6+– Rd5?? 14.Bh8 Bb3 15.Nd2 Bc2 16.g4 Nd4 17.Bg2 Bd6 18.f4! Bf4 19.Bd5 Bd2 20.Kd2 ed5 21.Bd4 Be4 22.Rh3 Kf8 23.Ba7 b6 24.Kc3 b5 25.Nf3 f5 26.Ng5 Bg2 27.Bc5 Kg7 28.Ne6 Kf7 29.Re3 fg4 30.Nc7 h6 31.Rae1 Kf6 32.Re6 Kg5 33.R1e5 Kh4+– 34.Bf2 g3 35.Be3 d4 36.Bd4 Bf3 37.Nb5 g2 38.Rh6 Kg4 39.Kd3 Kf4 40.Rf6 Kg4 41.Nc3 Bb7 42.Ne2 Ba6 43.b5 Bb7 44.Rf4 Kh3 45.h6 Bc8 46.Rh5 1–0. kevtheman – harzer, gameknot.com, 2012. (=1.c3 d5 2.b4 Nc6)

3.d3 e5 4.h3 Nf6 5.e4 de4 6.b5 Na5 (6...Ne7 7.Bg5–/+) 7.g4? (better is 7.Qa4!? c6 8.de4+=) 7...Qd5–+ 8.c4? (better is 8.d4–+) 8...Qd4 9.g5 Bc5 (better is 9...Qa1 10.Bd2 ed3 11.Bd3 Nc4 12.Bc4 Ne4–+) 10.Be3 Qa1 11.Bc5 Nd7 12.Bb4 Nc6 (better is 12...b6 13.Qc2 Qd4 14.de4 c5 15.Ba5 ba5–/+) 13.bc6= bc6 14.Qb3?? (14.a3 Rb8 15.Nd2 Qb2 16.Ne4 c5=) 14...Qd4 (better is 14...Rb8 15.a3 c5 16.de4 cb4 17.ab4 Nc5–+) 15.de4?? (better is 15.Bc3 Qd6 16.de4+=) 15...Qe4–+ 16.Ne2 Qh1 17.Qe3? c5! 18.Bc5 Qc6 19.f4 Qc5 20.Qe4 Nb6 21.Nec3 0–0 22.Bd3 g6 23.fe5 Qg1 24.Kd2 Bf5 25.Qe2 Bd3 26.Kd3 Qg5 27.Qf3 Qe5 28.Nb5 Rad8 29.Kc2 Nc4 30.N5c3 Rfe8 31.Kb3 Qe6 32.Qf4 Rb8 33.Kc2 Qe2! 34.Ne2 Re2 35.Kd3 Reb2 36.Nc3 Nd6 37.Qc1 f5 38.Kd4 f4! 39.Qf4 R8b4 (39...R8b4 40.Ke3 Nf5 41.Qf5 gf5–+) 0–1. jo3977 – JanAnton, ChessWorld.net, 2012.

3.d4 b5 4.a4 Ba6? (4...ba4 5.Qa4 Bd7 6.b5+=) 5.a5?? (better is 5.e4 Nb8 6.ab5+–) 5...e6 6.h4 h5 7.Bg5 f6 8.Bf4 Bd6 (8...e5 9.de5 fe5 10.Bg5=) 9.Qd2 (9.Bd6 cd6 10.e3 f5+=) 9...Nh6 (9...e5 10.de5 fe5 11.Bg5= (11.Qd5? Nge7 12.Qb3 ef4–+)) 10.Bh6 Rh6 11.g3 f5 12.f4 Qg5?? (better is 12...Qd7=) 13.hg5+– Rg6 14.Rh5 Rh6 15.Rh6 gh6 16.gh6 Kd7 17.e3 Rh8 18.Qh2 Bf8 19.h7 Bg7 20.Qh5 Rf8 21.Qg6 Bh8 22.Qg8 Rb8 23.Nf3 Re8 24.Ng5 Ne7 25.Qe6 1–0. Magulu – Off_Roader, playchess.de, 2005. (=1.d4 d5 2.b4 Nc6 3.c3 b5)

3.d4 Bd7 4.Nf3 e6 5.e3 g6 6.Bd3 Nf6 7.Nbd2 Bg7 8.b5 Na5 9.0–0 Nc4 (better is 9...Ne4!? 10.Qa4 Nd2 11.Bd2 c6+=) 10.Nc4+– dc4 11.Bc4 c6 12.a4 Qa5 13.Bb2 Ne4 14.Bd3 Nc3? (14...f5+–) 15.Qd2 cb5 16.Bc3 (16.Qc3?! Qc3 17.Bc3 ba4+–) 16...Qc7 17.ab5 Rc8 (17...0–0 18.Bb4 Rfc8 19.Bc5+–) 18.Bb4 b6 19.Rfc1 Qb8 20.Rc8 Qc8 (20...Bc8 21.Ng5+–) 21.Ra7 e5 (21...f5+–) 22.Ne5 Be5 23.de5 Qb8 24.Rd7! Kd7 25.Bf5 Ke8 26.Qd7# 1–0. Trkn – guest1523, ICC, 2004.

3.d4 Bf5 4.Nd2 e5 5.b5 Na5 (5...Nce7 6.de5 Ng6 7.Ndf3+=) 6.de5+/– Nc4 7.Nc4 dc4 8.Qd8 Rd8 9.Nf3 Bc5 (9...Ne7 10.Nd2 Bc2 11.e3+/–) 10.e3 Bd3 11.Nd2 Nh6 12.Nc4 Bc4 13.Bc4 0–0 (13...Ng4!?+/–) 14.f3 Rde8 15.f4 Kh8 16.Bd5 Nf5 (16...f6 17.e6+–) 17.Bb7 Ne3 18.Ke2 Nc2 19.Rb1 Na3 20.Ba3 Ba3 21.Bd5 f6 22.e6 Bd6 23.f5 Be7 (23...Re7 24.h4+–) 24.Rhd1 Rb8 25.a4 Rb6 (25...Rfd8+–) 26.Bc6 a6 (26...Rbb8 27.Rd7 Bc5 28.Rbd1+–) 27.a5 Rbb8 28.ba6 Bc5 (28...Rbc8+–) 29.Rb8 Rb8 30.a7! Ba7 31.e7 Bc5 32.Rd8 (33.ed8Q Bf8 34.Qf8#) 1–0. orane (2130) – vello01, Live Game Caissa's Web, 2004.

3.d4 Bg4 4.h3 Bh5 5.g4 Bg6 6.Na3 Nf6 7.Bf4 e6 8.Nb5 Rc8 9.Nf3 a6 10.g5 (10.Na3 a5–/+) 10...Ne4–+ (10...ab5?! 11.gf6 Qf6 12.e3+=) 11.Na3 Nb4 (11...Nc3 12.Qb3–+) 12.Qa4? (12.cb4 Bb4 13.Bd2 Nd2 14.Qa4 b5 15.Qb4 Nf3 16.ef3 Qg5 17.h4–/+) 12...Nc6 13.e3 (13.Rc1 Bd6 14.Bd6 cd6–+ (14...Nd6?! 15.Ne5–/+)) 13...Nc3 14.Qb3 Bb4 15.Rc1?? (15.Nc2 Bc2 16.Qc2 Ne4 17.Ke2–+) 15...Na2 16.Kd1 Nc1 17.Kc1 Qe7 18.Nc2 0–0 19.Ne5 (19.Be2 Bc2 20.Qc2 Bd6–+) 19...Be4 (19...Ne5 20.Be5 Bd6 21.Kd1 Be5 22.de5 Qg5 23.f4 Bh5 24.Kc1–+) 20.Rg1 (20.Nc6 bc6 (20...Bh1 21.Ne7 Be7 22.Qb7+/–) 21.Qb4 Qb4 22.Nb4 Bh1 23.Ba6 Rb8–+) 20...a5 (20...Ne5 21.Be5 c5 22.Nb4 cb4 23.Kd1–+) 21.Qa4 (21.Nc6 bc6 22.Nb4 ab4–+ (worse is 22...Qb4 23.Qb4 ab4 24.Kb2–+)) 21...Ne5 22.de5 (22.Be5 c5 23.Kd1 Bc2 24.Qc2 cd4–+) 22...c6 23.Be2 b5 24.Qa2 a4 25.Rg4 Qc5 26.Bd1 (26.Kd1–+) 26...Qc3 27.Qb1 Ba3 28.Qb2 Bb2 29.Kb1 Ba3 30.Ka2 (30.g6 Qb2) 0–1. Exilefromhell – StevenL, playchess.de, 2002.

3.e3 Qd6 4.Ba3= Bf5?? (better is 4...Qg6=) 5.b5+– Qe5 (5...Qf6 6.bc6 Qc6 7.Nf3+–) 6.bc6 bc6 7.Nf3 (7.Qb3 Bc8+–) 7...Qe4 (7...Qf6 8.Qb3 a5 9.Qb7+–) 8.d3 Qg4 9.Nbd2 (9.h3 Qh5+–) 9...Rb8 (9...Nf6+–) 10.Qa4 (better is 10.h3 Qg6 11.Qa4+–) 10...Qa4–+ 11.Bc1 (11.Bc5–+) 11...Qc2 12.Be2 (12.Nd4 Qc3 13.Nf5 Qa1–+) 12...Qc3 13.0–0 Qa1 14.Nd4 Qa2 15.Nf5 e6 16.Nd4 Bb4 17.Nc6 Rb5 18.Nb4 Rb4 19.Bf3 Qc2 20.Rd1 Qd3 21.g3 d4 22.Nf1 Qg6 23.Ba3 White gets kings attack 23...Rb5 24.Bc6 Kd8 25.Bb5 Ne7 26.Rd4 Nd5 27.e4 c5 28.Bc5= e5 29.Rd5+= Kc8 30.Ba6?? Kc7 31.Bd6= Kd7 32.Be5+– Kc6 33.Ne3 Re8?? 34.Bb5+– Kb6 35.Be8 Qe4 36.Rd6 Ka5 37.Bc3 Qb4 38.Bb4 Kb4+– 39.Bf7 a5 40.Rb6 Kc5 41.Ra6 Kb5 42.Ra8 a4 43.Be8 Kb4 44.Ra4 Kc3 45.Bc6 h5 46.Nd5 Kd2 47.Kf1 (47...Kc2 48.f4+–; better is 47.Be8!? g5+–) 1–0. pinecrest1981 – Eztake, Live Game Caissa's Web, 2005.

3.e3 Bd7 4.d4 e5 5.de5 Ne5 (5...Nge7=) 6.Nf3 (better is 6.Qd5!? Nc6 7.Nf3+=) 6...Nf3+= 7.Qf3 Qe7 (7...Nf6 8.Qg3+=) 8.Qd1 (better is 8.Qd5!? 0–0–0 9.Be2+=) 8...0–0–0 9.Be2 (9.Qd5? Bg4 10.Qb3 Rd1 11.Qd1 Bd1 12.Kd1 Qf6–+) 9...a6 (9...Qe5 10.a3+=) 10.Bb2 (10.Qd5 Nf6 11.Qa5 Qe4+=) 10...Bb5 (better is 10...Qg5!? 11.0–0 Bd6+=) 11.Bb5+/– ab5 12.Qe2 (12.a4 ba4 13.Ra4 Qg5+/–) 12...c6 13.Nd2 Kc7 14.0–0 Nf6 15.Nf3 (15.a4 ba4 16.Ra4 Kd7+/–) 15...Ne4 (15...Ra8 16.Rfd1+=) 16.Rfd1 (better is 16.a4 ba4 17.Ra4+/–) 16...Nf2? (better is 16...Ra8+=) 17.Qf2+– f5 (17...Ra8 18.Re1+–) 18.Re1 (18.Nh4 Re8 19.Nf5 Qe6+–) 18...Qf6 (18...Rg8 19.a4 ba4 20.Ra4+–) 19.Rad1 (19.c4 Qh6 20.c5 Qe6+–) 19...Bd6 (19...Qf7 20.Nd4+–) 20.h3 (20.c4 Qh6 21.c5 Bf8+–) 20...h6? (20...Qg6 21.Rf1+–) 21.Qd2 (better is 21.c4 Qf7 22.c5+–) 21...g5?? (21...Qe7 22.Qc2 Qe4 23.Qf2+–) 22.Rf1 (22.c4 Qe7 23.Bh8 Rh8 24.cd5 Bb4+–) 22...h5?? Black intends g4 (22...Rhe8 23.Nd4 Qe5 24.Rf5 Qh2 25.Kf2+–) 23.Nd4 (23.c4 Qe7 24.Bh8 Rh8 25.cd5 Re8+–) 23...h4 (23...Qg6 24.Nf5 Rhe8 25.Rf2+–) 24.Nf3 (better is 24.c4 Qg6 25.cd5+–) 24...Qg6 (24...Qe7 25.c4! Bb4 26.Qc2 Qe3 27.Kh1+–) 25.a3 (better is 25.c4!? bc4 26.Bh8 Rh8+–) 25...g4 26.hg4 (better is 26.c4!? gf3 27.Bh8 Rh8 28.cd5+–) 26...fg4+/– 27.Nh2 (27.c4 gf3 28.Bh8 Rh8 29.cd5 Rf8 30.dc6 bc6 31.Qd6 Qd6 32.Rd6 Kd6 33.gf3 c5 34.bc5 Kc5 35.Rc1 Kd6+/–) 27...Bh2 (better is 27...h3 28.g3 Bg3+=) 28.Kh1?? (better is 28.Kh2 g3 29.Kg1+=) 28...Bd6 (better is 28...h3 29.Bc1 hg2 30.Qg2 Be5 31.Kg1 Rh3–+) 29.Rfe1?? (29.c4 h3 30.Bh8 hg2 (30...Rh8?! 31.g3 bc4 32.Kh2–+) 31.Kg2 Qe4 32.Kg1 Rh8 33.Rf7 Kb8–+) 29...Rdf8 (better is 29...h3 30.Kg1 hg2 31.Qg2–+) 30.e4? (30.c4 Rh5 (30...bc4?! 31.Bh8 Rh8 32.e4–/+) 31.e4 bc4–+ (worse is 31...de4 32.c5 Bg3 33.Qd7 Kb8 34.Qe7–+)) 30...de4 (30...h3 31.Kg1 hg2 32.e5 Bc5 33.bc5 Rf1 34.Rf1 Rh1 35.Kf2 Qf5 36.Qf4 Qf4 37.Ke2 Rf1 38.c4 Rf2 39.Kd3 Qc4 40.Ke3 Re2) 31.Qd6? (better is 31.c4 Rh5 32.c5–+) 31...Qd6 32.Rd6 Kd6 33.Rd1 (33.c4 Rhg8 34.cb5 cb5–+) 33...Kc7 34.c4 bc4 (better is 34...Rh5!? 35.cb5 Rb5 36.Re1–+) 35.Bh8 Rh8 36.Rc1 (36.Rd4 e3 37.Re4 Rd8 38.Re3 g3 39.Re7 Kb6–+) 36...g3 37.Rc4 (37.Kg1 Ra8 38.Rc3–+) 37...h3 (37...Rd8 38.Rc1 e3 39.Kg1 e2 40.Re1 Rd1 41.Rd1 ed1Q) 38.Re4–/+ hg2 39.Kg2 b5 (39...Rg8!?–/+) 40.Rg4 Rg8?? (better is 40...Rh2 41.Kg1 Kd6+=) 41.Rg8+– Kb6 42.Rg4 c5 (42...Kc7 43.Kg3 Kd6 44.Kf4+–) 43.bc5 (better is 43.Rg6 Kb7 44.bc5 Kc8+–) 43...Kc5 44.Rg3 b4 (44...Kb6 45.Rg6 Kc5 46.Kf3+–) 45.ab4 Kb4 46.Rg4 Ka5 47.Rg3 Ka6?? (47...Kb4 48.Kf3 Kc5+–) 48.Rf3 Ka7 49.Kh3 Kb7 50.Kg4 Kc7 51.Rf5 Kd7 52.Kh5 Ke7 53.Kg6 1–0. Fournier,Frederic (1860) – jcarlosg5 (1695), Active blind, 2011.

3.e3 e5 (--> 1.b4 e5 2.c3 d5 3.e3 Nc6).

3.e3 e6 4.Nf3= b6 5.d4 Bb7 6.Bd3 Nf6 7.Qc2 g6 8.Nbd2 Bg7 9.Bb2 0–0 10.0–0 Ne7 11.a3 c5 12.bc5 bc5 13.Rab1 cd4 (13...c4 14.Be2=) 14.ed4 (14.cd4 a5 15.Nb3+=) 14...Ne4? (better is 14...Qc7!?=) 15.Ne4+/– de4 16.Be4 Be4 17.Qe4 Nf5 18.Rfc1 Bd4?? (better is 18...Rc8+/–) 19.Nd4+– Nd4 20.cd4 Qd7 21.g3 Rfc8 22.Rc8 Rc8 23.Qe5 f5 (23...Qd5+–) 24.d5! ed5 (24...Qd5 25.Qg7 Mate attack; 24...ed5 25.Qh8 Double attack) 25.Qh8 (25.Re1 d4 26.Bd4 Qd4 27.Qd4 a5 28.Re7 Rc1 29.Kg2 Rg1 30.Kg1 h6 31.Qd8) 25...Kf7 26.Qg7 (26.Qh7 Ke8 27.Qg6 Kf8 28.a4+–) 26...Ke6 (26...Ke8 27.Re1 Kd8 28.Qf6 Kc7+–) 27.Qd7 (27.Qf6) 27...Kd7+– 28.Re1 Rc4 29.Bc1 a5 30.Kf1 a4 31.h4 Kc6 32.Be3 Kb5 (32...d4 33.Bd2 Rc2 34.Bb4+–) 33.Rc1 (better is 33.Rb1 Kc6 34.Rb6 Kc7 35.Ra6+–) 33...Re4? (33...d4 34.Rb1 Kc6 35.Bd2+–) 34.Kg2 (34.Rc5 Ka6+–) 34...f4? (better is 34...d4 35.Bh6 d3+–) 35.gf4 (better is 35.Bf4 Rc4 36.Rb1 Kc6 37.Rb8+–) 35...d4? (35...Rc4 36.Rb1 Kc6 37.Rb6 Kd7 38.Ra6+–) 36.Bd2 (better is 36.Kf3 Re6 37.Bd4+–) 36...Rf4?? (36...Re7+–) 37.Bf4 1–0. Fournier,Frederic (1810) – offnennen (1830), Active blind, 2011.

3.e3 Nf6 4.Nf3 Bf5 5.d4 Ne4 6.Bd3 Qd7 (6...e6 7.b5 Na5 8.Qa4=) 7.Qc2 0–0–0 8.Nbd2 Nd2 9.Qd2 Bd3 10.Qd3 e6 11.Qc2 Be7 12.Bb2 f5 13.0–0 g5 14.h3 (14.b5!? Na5 15.Ne5 Qb5 16.Nf7=) 14...Rhf8 Black prepares the advance f4 15.Rfe1 (15.Nd2 Rg8+=) 15...h5 16.e4 (better is 16.b5!? Na5 17.Qa4+=) 16...de4–/+ 17.Ne5 Ne5 18.de5 f4 (better is 18...Qb5!?–+) 19.Rad1–/+ Qd1?? (better is 19...Qc6 20.Rd8 Rd8 21.Re4 Rd2 22.Qd2 Qe4–/+) 20.Rd1+– Rd1 (20...h4 21.Rd4+–) 21.Qd1 f3 22.Qf3 ef3–+ (22...Rf3?! 23.gf3 ef3 24.Bc1–/+) 0–1. Fournier,Frederic (1785) – ChateaConmigo (1715), Active blind, 2011.

3.e3 h5 4.Nf3 h4 5.h3 (5.b5 Nb8=) 5...g5 (5...Bf5 6.Bb5+=) 6.b5 (6.Bb5 g4 7.Ne5 Rh6 8.hg4 Bg7+–) 6...Na5 7.d3 (7.Be2 g4 8.hg4 Bg4+=) 7...f5 (7...Bd7 8.e4+=) 8.Be2 (8.Qa4 c6+/–) 8...c5 (8...e6 9.Ne5 Nf6 10.Ng6+/–) 9.Ng5 e5? (better is 9...Nf6+/–) 10.Bh5+– Ke7 (10...Kd7 11.Nf7 Qf6 12.Nh8 Qh8+–) 11.Nf7 +–. pierre – flint, ChessHere.com, 2006.

3.d4 e5

4.b5 Nce7 5.de5 Bg4 +=.

4.e3 e4 5.b5 Nce7 6.c4 +=.

4.e3 Nf6 5.f3 (5.b5 Ne7 6.de5 Ne4=) 5...Be7 (5...Bd6 6.b5 Ne7 7.Ba3–/+) 6.Ne2 (6.b5 Na5 7.de5 Ng8+=) 6...0–0 (6...Bd6 7.b5 Ne7 8.Ba3+=) 7.Ng3 (7.b5 Na5 8.de5 Ne8+=) 7...Be6 (7...Bd6 8.Be2–/+) 8.Qb3 (8.b5 Na5=) 8...a5 (8...a6 9.Be2–/+) 9.ba5 (9.b5 Na7+=) 9...Na5–/+ 10.Qc2 ed4 11.cd4 Bb4 12.Bd2 Bd2 13.Nd2 c6 14.Bd3 Qb6 15.0–0 Rfe8 16.Rfe1 1–0. lindsey000 – readbob, gameknot.com, 2014.

4.de5 Ne5 5.f4 (5.Nf3 Nf3 6.ef3 Nf6–/+) 5...Nc4 (5...Ng6!? 6.Nf3–+) 6.e3 Nf6 7.Nf3 Bg4 8.h3 Bf3 (8...Be6 9.Bc4 dc4 10.Nd4+=) 9.Qf3+= g6 (9...Nd6 10.Bd3+=) 10.h4?? (better is 10.Bc4 dc4 11.Qb7+/–) 10...Bg7 (better is 10...Nd6 11.Nd2 Qe7–/+) 11.g3? (11.Bc4!? dc4 12.0–0+=) 11...b5 (better is 11...Nd6–+) 12.Bh3? White prepares f5 (better is 12.Na3 c6 13.Nc4 bc4 14.Bb2–+) 12...Ne4–+ 13.a3 0–0 14.Bg4 (14.0–0 a5 15.Ra2 Bc3 16.Nc3 Nc3–+) 14...h5 15.Bh3 c6 16.f5 (16.0–0–+) 16...a5 (worse is 16...Nc3 17.0–0 Ne2 18.Qe2 Ba1 19.Nd2–+) 17.fg6 (17.ba5 Be5 18.0–0–+) 17...fg6 18.Be6 (18.Qg2 ab4 19.Rf1 Be5 20.Rf8 Kf8–+) 18...Kh7 19.Qg2 ab4 20.g4 bc3 21.gh5 gh5 22.Ra2 b4! 23.Kd1 (23.ab4 Qe7 Double attack (23...Qe7 Decoy)) 23...b3 24.Rg1 c2 25.Rc2 bc2 26.Kc2 Qf6 (26...Rf2 27.Qf2 Nf2 28.Bf5 Kg8 29.Bd3 Qh4 30.Bb2 Nb2 31.Be2–+) 27.Bf5 Kh8 28.Bd7 (28.Be4 de4 29.Qg3 Rf7–+) 28...c5 (better is 28...Rf7 29.Be6 Qe6–+) 29.Bc6 (29.Qg7 Qg7 30.Rg7 Kg7 31.a4–+) 29...Ra3! 30.Na3 (30.Na3 Qc3 Mate attack; 30.Ba3 Ne3 Double attack) 30...Qc3 31.Kd1 Nf2 32.Qf2 Rf2 33.Bd5 (33.Nc4 Qc2 34.Ke1 Qe2) 33...Na3 (33...Rd2 34.Bd2 Qd2) 34.Be4 (34.Bf3 Qc2 35.Ke1 Bc3 36.Bd2 Qd2) 34...Nc4 (34...Nc4 35.Bg6 Rd2 36.Bd2 Qd2) 0–1. Franziska,Franzi (2110) – Orion,Martin (1835), remoteschach.de, 2002. (=1.d4 d5 2.b4 Nc6 3.c3 e5)

4.g4 Bg4 5.f3? (better is 5.b5 Na5 6.de5–/+) 5...Qh4–+ 6.Kd2 Bf5 7.Qe1 Qh6 8.e3 (8.Kd1 Qg6 9.e4 de4–+) 8...Nb4! 9.cb4 (9.Kd1 Nc2 10.e4 Ne1 11.Bh6 de4 (11...gh6?! 12.ef5 ed4 13.cd4–/+; 11...Nh6?! 12.ef5 Nf3 13.Nf3–+) 12.Ke1 Nh6 (12...gh6?! 13.de5 Ne7 14.Nd2–+) 13.de5 0–0–0–+) 9...Bb4 10.Nc3 ed4 11.Bh3 (11.Bb2–+) 11...Bc3 12.Ke2 Qa6 13.Kf2 Be1 14.Ke1 Bh3 15.Nh3 de3 16.Be3 Qe6 17.Ng5 Qe3 18.Kd1 Qg5 19.Re1 Kd7 20.h3 Nf6 21.Rh1 Rhe8 22.h4 Qg2 23.Rc1 (23.h5 Qf3 24.Kc1 Re2 25.Rd1 Qc3 26.Kb1 Qb2) 23...Qh1 (23...Qe2) 24.Kc2 Re2 25.Kb1 Qh4 26.a4 (26.a3 Qd4 27.Rc2 Qd1 28.Rc1 Qb3 29.Ka1 Qb2) 26...Qb4 27.Ka1 Qb2 0–1. Elsner,David (1680) – Rasch,Harald (2095), remoteschach.de, 2002.

4.b5 Na5

5.de5 Bc5 6.Ba3 Qe7 7.Bc5 Qc5 8.e3 +=.

5.de5 Bc5 6.Nf3 +=.

4.e3 ed4

5.ed4 Qe7

6.Qe2 Bd7 A) 7.Bg5 f6 (7...Qe2 8.Be2 h6 9.Be3 Nf6 10.Nf3 Bd6 11.0–0 0–0–0 12.b5 Ne7=; 7...Nf6 8.Bf6 gf6 9.Nf3 0–0–0 10.Qe7 Ne7 11.Be2 Re8 12.0–0 Ng6=; 7...Qe6 8.Qe6 Be6 9.Bb5 a5 10.ba5 Ra5 11.Bc6 bc6 12.Nd2 c5=) 8.Be3 0–0–0 9.Qf3 Nh6 10.Qd5 Ng4 11.Qf3 Re8 12.b5 Nd4–/+; B) 7.b5 Nb8 (7...Nd8 8.Nf3 Bg4 9.Qe7 Ne7 10.Ne5 Bf5 11.Be2 Ne6 12.0–0 Ng6=; 7...Qe2 8.Be2 Na5 9.Nd2 Bd6 10.Ngf3 0–0–0 11.Ne5 Be6 12.0–0 Ne7=; 7...Na5 8.Ba3 Qe2 9.Be2 0–0–0 10.Nf3 Nh6 11.0–0 Ba3 12.Na3 Bf5=) 8.Bf4 c6 9.bc6 Nc6 10.Nf3 Rc8 11.Nbd2 Na5 12.Nb3 Qe2+=; C) 7.Qe7 Nge7 (7...Be7 8.Bd3 Nf6 9.Nf3 a5 10.b5 Na7 11.a4 0–0 12.0–0 Rae8=; 7...Nce7 8.Nf3 Ng6 9.Bd3 Bg4 10.Ne5 Ne5 11.de5 Ne7 12.Be3 a5=) 8.Nf3 Ng6 9.Be2 Bd6 10.0–0 0–0 11.Re1 Rae8 12.Bg5 Re6+=; D) 7.Nf3 0–0–0 (7...Nf6 8.b5 Na5 9.Ba3 Qe2 10.Be2 Ne4 11.Bf8 Rf8 12.0–0 0–0–0=; 7...Bf5 8.Qe7 Nge7 9.Be2 Ng6 10.0–0 Bd6 11.b5 Nce7 12.c4 dc4=; 7...a5 8.b5 Na7 9.a4 Nf6 10.Nbd2 Bf5 11.c4 0–0–0 12.Ba3 Qe8=) 8.Qe7 Be7 9.Bd3 Re8 10.0–0 Nf6 11.Bf4 Nh5 12.Be3 Bd6=.

6.Qe2 Bf5 A) 7.Qe7 Nge7 (7...Be7 8.Nf3 Bd6 9.Nh4 Bg4 10.Bd3 Nge7 11.0–0 0–0–0 12.Na3 a6=; 7...Nce7 8.Nf3 Ng6 9.Be2 Bd6 10.Na3 a6 11.0–0 Nf6 12.Re1 0–0+=) 8.Nf3 Ng6 9.Be2 Bd6 10.0–0 0–0–0 11.Re1 Rhe8 12.Be3 Nf4+=; B) 7.Bg5 Nf6 (7...Qe2 8.Be2 h6 9.Be3 Nf6 10.Nf3 Bd6 11.0–0 Ng4 12.Bc1 0–0–0=; 7...f6 8.Be3 0–0–0 9.Nf3 Re8 10.Qb5 Qd7 11.Qa4 a6 12.Qb3 Nh6=) 8.Bf6 gf6 9.b5 Na5 10.Nd2 Qe2 11.Ne2 Ba3 12.Nf3 0–0–0+=; C) 7.b5 Nd8 (7...Na5 8.Nf3 Nf6 9.Ba3 Qe2 10.Be2 Ba3 11.Na3 0–0–0 12.Ne5 Rhf8=) 8.Nf3 Nf6 9.c4 Ne6 10.Ba3 Qd7 11.Bf8 Rf8 12.c5 Bg4+=; D) 7.Nf3 Nd8 (7...Nf6 8.Qe7 Ne7 9.Be2 Ng6 10.0–0 0–0–0 11.Re1 Re8 12.Ng5 Re7=; 7...0–0–0 8.Qe7 Nge7 9.Bb5 Re8 10.0–0 Ng6 11.Ng5 Re7 12.Bc6 bc6=; 7...h6 8.b5 Na5 9.Ba3 Qe2 10.Be2 Ba3 11.Na3 Nf6 12.0–0 0–0=) 8.Qe7 Be7 9.Bb5 c6 10.Be2 Nf6 11.0–0 0–0 12.Re1 Re8+=.

6.Qe2 Nf6 A) 7.Bg5 Be6 (7...Qe2 8.Be2 Ne4 9.Bf4 Bd6 10.Bd6 Nd6 11.Nf3 Bg4 12.Nbd2 0–0–0=; 7...Bf5 8.Bf6 gf6 9.b5 Na5 10.Nd2 Qe2 11.Ne2 0–0–0 12.Ng3 Bc2=; 7...Kd8 8.b5 Na5 9.Nf3 h6 10.Bf6 Qf6 11.Qe5 Qe6 12.Be2 Bd6+=) 8.Nf3 h6 9.Bf6 Qf6 10.Qe3 Bd6 11.Bb5 0–0 12.Bc6 Bf4+=; B) 7.Bf4 Ne4 (7...Be6 8.Qe3 Ng4 9.Qf3 g5 10.Bd2 0–0–0 11.Bb5 Rd6 12.Ne2 Bg7=; 7...Kd8 8.Nf3 Bf5 9.b5 Na5 10.Nbd2 Kc8 11.Ne5 Ne4 12.Ne4 Be4=) 8.Nf3 Bg4 9.Qe3 0–0–0 10.b5 Na5 11.Ne5 Bf5 12.f3 Nd6+=; C) 7.b5 Nd8 (7...Na5 8.Nf3 Bg4 9.Qe7 Be7 10.Ne5 Bf5 11.Be2 0–0 12.0–0 Bb1+=; 7...Nb8 8.Bg5 Qe2 9.Be2 Ne4 10.Bf4 Bd6 11.Bd6 Nd6 12.Nf3 a6=) 8.Nf3 Bg4 9.Qe7 Be7 10.Ne5 Bf5 11.Be2 0–0 12.0–0 Re8+=; D) 7.Qe7 Be7 (7...Ne7 8.Nf3 Bg4 9.Ne5 Bf5 10.Bf4 a5 11.b5 Nc8 12.Be2 Bd6=) 8.Bf4 Kd8 9.Bd3 Re8 10.Ne2 Bg4 11.f3 Bd7 12.0–0 Kc8=.

6.Qe2 Bg4 A) 7.Bg5 Be2 (7...f6 8.Qe7 Nge7 9.Bf4 0–0–0 10.Be2 Bf5 11.Nf3 Ng6 12.Be3 Bd6+=; 7...a5 8.Be7 Be2 9.Be2 Nce7 10.b5 Ng6 11.Nh3 Bd6 12.0–0 Nf6=; 7...Qe2 8.Be2 Bf5 9.Nf3 Bd6 10.0–0 Nge7 11.Re1 h6 12.Be3 0–0=) 8.Be7 Bf1 9.Bf8 Bg2 10.Bg7 Bh1 11.Bh8 Kd7 12.b5 Re8+=; B) 7.f3 Bf5 (7...Bd7 8.Bg5 Qe2 9.Be2 Bd6 10.Bd3 h6 11.Bh4 g5 12.Bf2 0–0–0+=) 8.Bg5 f6 9.Bf4 0–0–0 10.g4 Bd7 11.b5 Na5 12.Qe7 Ne7–/+; C) 7.Qe3 0–0–0 (7...Qe3 8.Be3 Bd6 9.Bd3 Nge7 10.Ne2 0–0–0 11.0–0 Rde8 12.Ng3 h5+=; 7...Nf6 8.Bd3 0–0–0 9.Ne2 Re8 10.Qe7 Ne7 11.0–0 Bf5 12.Bf5 Nf5+=) 8.Be2 Qd7 9.b5 Na5 10.Nf3 f6 11.h3 Bf5 12.Nfd2 Re8+=; D) 7.Qe7 Nce7 (7...Nge7 8.Be2 Be2 9.Ne2 a5 10.b5 Na7 11.a4 c6 12.bc6 bc6=; 7...Be7 8.Bb5 a5 9.Bc6 bc6 10.ba5 Ra5 11.Bf4 Kd8 12.h3 Bh5=) 8.Be2 Nf6 9.Nf3 Ng6 10.h3 Bf3 11.Bf3 Nh4 12.Be2 Ng2+=.

6.Be2 a5 7.Qa4 Bf5 (7...Nf6 8.b5 Nd8 9.Nf3 Bg4 10.Be3 Qd6 11.0–0 Be7 12.Re1 0–0=; 7...Qe6 8.b5 Nd8 9.Bf4 Qb6 10.Nf3 Ne6 11.Be5 Ne7 12.Bd3 Ng6=; 7...Qe4 8.Nf3 Nf6 9.0–0 Bd6 10.Nbd2 Qf5 11.b5 Ne7 12.Ba3 Ne4+=) 8.b5 Nd8 9.Be3 Nf6 10.Nf3 Ng4 11.Bg5 f6 12.Bc1 Bd3 +=.

6.Be2 a5 7.ba5 Be6 (7...Bf5 8.Nf3 Ra5 9.0–0 Nf6 10.Qb3 Ra7 11.Bb5 Qd6 12.Bf4 Qd8+/–; 7...Nf6 8.Nf3 Ra5 9.0–0 Qd6 10.Bd2 Ne4 11.c4 Ra8 12.Re1 Be7+=; 7...Ra5 8.Nf3 Nf6 9.0–0 Qd6 10.Bd2 Ne4 11.c4 Ra8 12.Re1 Be7+=) 8.Nf3 Ra5 9.0–0 Nf6 10.Re1 Qd7 11.Bd2 Be7 12.c4 Ra7 =.

6.Be2 a5 7.b5 Na7 8.Qa4 Bf5 9.Qa5 b6 10.Qa6 Bc8 11.Qa4 Nf6 12.Qb3 Bf5 +=.

6.Be2 a5 7.b5 Nd8 8.a4 (8.Nf3 Nf6 9.0–0 Ne4 10.Re1 Bf5 11.c4 c6 12.bc6 Nc6+/–) 8...f6 (8...Bg4 9.Be3 Be2 10.Ne2 Ne6 11.0–0 Qh4 12.Nd2 Bd6=) 9.Ra2 (9.Nf3 Nf7 10.0–0 Be6 11.Re1 0–0–0 12.c4 Nd6+/–) 9...c6 (9...Qe4 10.Be3 Bd6 11.Nd2 Qe6 12.c4 Bb4+=) 10.Qd3 (10.Be3 Qe6 11.Nf3 Bd6 12.Bd3 Ne7+=) 10...g6 (10...Qc7 11.Qe3 Kf7 12.Nf3 g6+=) 11.g4 (11.Ba3 Qf7+= 12.Nf3 Bf5+=) 11...Bh6 (11...Bg4 12.Ba3 Qe6–/+) 12.Bh6 (12.Ba3 Qe6=) 12...Nh6 13.h3 cb5 14.Qb5 Nc6 15.Qd5?? (better is 15.Rb2+=) 15...Be6–+ 16.Qg2 Ba2 17.Nd2 Bb3! 18.Nb3 Qa3 19.Bd1 0–0–0 20.Ne2 f5 21.0–0 fg4 22.hg4 Qa4 23.Qh3 Nf7 24.g5 Kb8 25.f4 h5 26.Qe6 Nd6 27.Qg6 Ne7 28.Qb1 Nef5 29.Nc5 Qe8 (29...Qc6 30.Bc2 Rhe8 31.Bf5 Nf5 32.Rf2+=) 30.Qd3 (better is 30.Nb7 Nb7 31.Qf5+/–) 30...h4 31.Re1 Qc6 32.Ba4 Qd5 33.Bb3 Qc6 34.Be6?? (better is 34.Ba4 Qc8 35.Rb1=) 34...h3–+ 35.d5 (35.Na6 ba6 36.d5 Qb6 37.Nd4 Nd4 38.cd4 Nb5–+) 35...Qc5 36.Nd4 Nd4 37.cd4 Qb4 38.Rb1 h2 39.Kh1 Rh3 (better is 39...Qc4 40.Qc4 Nc4–+) 40.Bh3+– Qa4 41.Be6 Qc4? (41...Qe8 42.Kh2 Qe7 43.Kg3+–) 42.Qe3?? (better is 42.Qc4 Nc4 43.g6+–) 42...Qa2 43.Re1 Rh8?? (better is 43...Qc2+–) 44.g6 Nc4 45.Qe2 Nd2 (45...Qd2 46.g7 Re8 47.d6 (47.Qc4?! Qe1 48.Kh2 Qf2 49.Kh3 Qf4=) 47...Qe2 48.Re2 Nd6 49.Rh2+–) 46.g7 Re8 47.g8Q Rg8 48.Bg8 a4 (48...Qc2 49.d6 Qc6 50.d5 Qd6 51.Qd2+–) 49.Rd1 a3 50.Rd2 Qa1 (50...Qb3 51.f5 Qb1 52.Kh2+–) 51.Kh2 Qc3 52.d6 Kc8 53.Qe8 1–0. rayzz – karlsdad, ChessWorld.net, 2011.

6.Be2 Be6 A) 7.b5 Na5 (7...Nd8 8.Nf3 Qf6 9.Bg5 Qg6 10.0–0 Bd6 11.Qd2 f6 12.Bd3 Bf5+=; 7...Nb8 8.Nf3 Nd7 9.0–0 0–0–0 10.Re1 Qd6 11.Qa4 Kb8 12.Ng5 Re8+=) 8.Nf3 Nc4 9.Bc4 dc4 10.Ne5 Qd6 11.Qa4 Qd5 12.0–0 f6=; B) 7.Be3 Qf6 (7...Bf5 8.Nf3 Nf6 9.0–0 Qe6 10.b5 Ne7 11.Bf4 Qb6 12.a4 Qa5+=; 7...Nf6 8.Nf3 Ne4 9.0–0 Qf6 10.Nfd2 0–0–0 11.Qa4 Kb8 12.Ne4 de4+=; 7...h6 8.Nf3 Qf6 9.0–0 Bd6 10.Na3 0–0–0 11.Qa4 Kb8 12.Rfe1 Bf4+=) 8.Nf3 Bd6 9.0–0 Nge7 10.Bg5 Qg6 11.b5 Nd8 12.Qd2 f6=; C) 7.Nf3 Qd6 (7...Nf6 8.b5 Nb8 9.0–0 Ne4 10.Re1 Nd7 11.Bd3 f5 12.Ng5 Ng5+=; 7...0–0–0 8.b5 Na5 9.Qa4 b6 10.Ba3 Qe8 11.0–0 Nf6 12.Re1 Ba3+/–; 7...Bg4 8.0–0 0–0–0 9.Re1 Re8 10.Nbd2 Kb8 11.Qa4 Qd8 12.b5 Nce7+=) 8.Na3 a6 9.b5 Nb8 10.0–0 Nf6 11.Re1 Be7 12.c4 dc4+=.

6.Be2 Bf5 A) 7.Nf3 Qd6 (7...0–0–0 8.0–0 Nf6 9.Re1 Qd6 10.b5 Ne7 11.Ne5 Be6 12.Ba3 Qb6+/– 1.06; 7...Nf6 8.0–0 0–0–0 9.Re1 Qd6 10.b5 Ne7 11.Ne5 Be6 12.Ba3 Qb6+/– 1.06; 7...Qd7 8.b5 Nce7 9.0–0 Nf6 10.Re1 Ng6 11.Bd3 Be7 12.Ne5 Ne5+=) 8.Na3 0–0–0 9.Nb5 Qe6 10.Bf4 Rd7 11.0–0 a6 12.Nc7 Qe4+=; B) 7.Be3 Qe6 (7...0–0–0 8.Qa4 Qe6 9.Nf3 Kb8 10.0–0 Bd6 11.b5 Nce7 12.c4 Bf4+=; 7...Nf6 8.Nf3 Ng4 9.Bf4 0–0–0 10.0–0 Re8 11.Re1 Qf6 12.Nbd2 Bd6=; 7...Qf6 8.Nf3 Bd6 9.0–0 Nge7 10.Re1 0–0 11.Bg5 Qg6 12.Qd2 Be4=) 8.Nf3 0–0–0 9.Qa4 Kb8 10.b5 Nce7 11.0–0 Nc8 12.Re1 Nb6=; C) 7.b5 Nd8 (7...Na5 8.Nf3 0–0–0 9.0–0 Re8 10.Re1 Qf6 11.Qa4 b6 12.Nbd2 Bd6+=; 7...Nb8 8.Nf3 Nd7 9.0–0 Ngf6 10.Re1 Ne4 11.c4 0–0–0 12.cd5 Qd6+=) 8.Nf3 Qf6 9.Bg5 Qg6 10.Bd8 Rd8 11.Nh4 Qf6 12.Nf5 Qf5+=.

6.Be2 Nf6 A) 7.b5 Nd8 (7...Na5 8.Nf3 Bg4 9.0–0 0–0–0 10.Re1 Re8 11.Ne5 Be2 12.Re2 Ng4+=; 7...Nb8 8.Nf3 Qe6 9.0–0 Bd6 10.Re1 0–0 11.Bd3 Qg4 12.Ba3 Ba3+=) 8.Nf3 Qd7 9.0–0 Bd6 10.Bd3 0–0 11.Ne5 Qe7 12.Re1 Ne6=; B) 7.Nf3 Bf5 (7...Bg4 8.0–0 0–0–0 9.Re1 Re8 10.Nbd2 Qd6 11.b5 Na5 12.Ne5 Be6+=; 7...Ne4 8.0–0 Qf6 9.Re1 Bf5 10.Bd3 Be7 11.b5 Na5 12.Qa4 Nc4+/–; 7...Qd6 8.0–0 Bf5 9.Re1 0–0–0 10.b5 Ne7 11.Ne5 Be6 12.Ba3 Qb6+/– 1.06) 8.b5 Nd8 9.0–0 Ne4 10.Re1 Ne6 11.c4 Qd8 12.Nbd2 Nc3+=.

6.Be2 Bg4 A) 7.Be3 Be2 (7...Bf5 8.Nf3 Nf6 9.0–0 Qd6 10.Re1 Be7 11.Bd3 Bd3 12.Qd3 0–0=; 7...Be6 8.Nf3 Nf6 9.0–0 Qd6 10.Re1 Be7 11.Na3 a6 12.Qc2 0–0=; 7...Bd7 8.Nf3 Nf6 9.0–0 0–0–0 10.b5 Nb8 11.Ne5 Re8 12.Qa4 a6+/–) 8.Ne2 Qh4 9.Nd2 Bd6 10.Nf3 Qg4 11.0–0 Nf6 12.Qb3 a5=; B) 7.b5 Na5 (7...Nd8 8.Be3 Be2 9.Ne2 Qd7 10.Qb3 Nf6 11.0–0 Ne6 12.Re1 Bd6=; 7...Nb8 8.Be3 Bf5 9.Nf3 Nf6 10.0–0 Qd6 11.Re1 Be7 12.Bc1 Qd8+=) 8.Ba3 Qe6 9.Bf8 Kf8 10.Nd2 Re8 11.f3 Bf5 12.Qa4 Bd3=; C) 7.a4 0–0–0 (7...Qe6 8.h3 Bf5 9.Nf3 Be7 10.b5 Na5 11.0–0 0–0–0 12.Re1 Re8=; 7...Nf6 8.Be3 Qe6 9.Nf3 Bd6 10.0–0 0–0 11.a5 Ne7 12.Re1 Rae8=; 7...a5 8.b5 Na7 9.Be3 Be2 10.Ne2 0–0–0 11.Nd2 Nf6 12.0–0 Ng4=) 8.Be3 Be2 9.Ne2 Qh4 10.Nd2 Re8 11.Nf3 Qg4 12.0–0 Bd6=; D) 7.h3 Be2 (7...Bh5 8.Be3 Bg6 9.Nf3 Qe6 10.0–0 Nf6 11.Qa4 Be7 12.Bb5 0–0+=; 7...Bf5 8.Nf3 0–0–0 9.0–0 Qd6 10.Qa4 Kb8 11.Be3 Nce7 12.Ne5 Qe6+=; 7...Be6 8.Nf3 0–0–0 9.b5 Na5 10.Qa4 b6 11.Ba3 Qe8 12.Bf8 Qf8+=) 8.Ne2 0–0–0 9.0–0 Re8 10.Re1 Nf6 11.b5 Nd8 12.Qa4 Qd7=.

6.Ne2 a6 A) 7.Bf4 Bf5 (7...Nf6 8.Qd3 Nd8 9.Be5 Ng4 10.Bg3 Ne6 11.Nd2 Nf6 12.Be5 a5=; 7...Bg4 8.Qa4 Ra7 9.f3 Bd7 10.Qb3 Be6 11.Kf2 a5 12.b5 a4=; 7...Be6 8.Qa4 b5 9.Qc2 a5 10.ba5 Ra5 11.Nd2 Nf6 12.Nb3 Ra3=) 8.Qa4 Bd3 9.Qd1 Be4 10.Nd2 Bf5 11.Qa4 Bd3 12.Nb3 Bb5+=; B) 7.Be3 Nf6 (7...Bg4 8.h3 Bd7 9.Nf4 Nf6 10.Bd3 g5 11.Ne2 h6 12.a4 0–0–0=; 7...Bd7 8.Nf4 Nf6 9.Be2 0–0–0 10.0–0 g5 11.Nd3 Ne4 12.a4 f5+=; 7...Qd7 8.Nf4 Nf6 9.Bd3 Bd6 10.Nh5 Nh5 11.Qh5 Ne7 12.0–0 Qg4=) 8.Nd2 Bd7 9.a4 Ng4 10.Bf4 Bf5 11.Nb3 Nd8 12.Nc5 b6+=; C) 7.Qd3 Nf6 (7...Be6 8.Bf4 Nf6 9.Nd2 Nh5 10.Be3 Qf6 11.Nf3 Bf5 12.Qd1 Bd6+=; 7...Bd7 8.Qf3 Nf6 9.Bg5 Qe4 10.Nd2 Qf3 11.Nf3 Ne4 12.Be3 Bg4+=; 7...h6 8.Be3 Nf6 9.Nd2 g6 10.Ng3 h5 11.h4 Ng4 12.Be2 Ne3+=) 8.Bf4 Ne4 9.Nd2 g5 10.Be3 Nd6 11.Qc2 Nf5 12.Qd3 h5+=; D) 7.Qb3 Nf6 (7...Be6 8.Nf4 Nf6 9.Be2 Bf5 10.0–0 Qd7 11.Re1 Be7 12.Bf3 Rd8=) 8.Be3 Be6 9.Nd2 Qd7 10.Nf4 Bf5 11.Be2 Be7 12.0–0 0–0=.

6.Ne2 Nd8 A) 7.Qa4 c6 (7...Bd7 8.Qa5 c6 9.Bf4 Nf6 10.Nd2 Ne6 11.Be5 Ng4 12.Bg3 Nh6=) 8.b5 Nf6 9.Ba3 Qd7 10.b6 Ba3 11.Qa3 Ne6 12.f4 Qe7+=; B) 7.a4 Nf6 (7...Bf5 8.a5 a6 9.Be3 Nf6 10.Ng3 Bg4 11.Be2 Be2 12.Qe2 Qe6=; 7...Bg4 8.a5 Nf6 9.a6 b6 10.Be3 c6 11.Qc2 Qd7 12.Ng3 Be7=; 7...Ne6 8.a5 Bd7 9.Ng3 0–0–0 10.Be2 Re8 11.0–0 Nf6 12.Re1 Qd8=) 8.a5 a6 9.Bf4 Bf5 10.Qa4 Bd7 11.Qb3 Ne6 12.Be5 0–0–0+=; C) 7.Be3 Nf6 (7...a5 8.Qa4 Bd7 9.b5 Nf6 10.Nf4 Ne6 11.Be2 Nf4 12.Bf4 Bh3=; 7...Bg4 8.h3 Bd7 9.Nf4 Nf6 10.Bd3 a5 11.b5 Qd6 12.0–0 Be7+=; 7...Bd7 8.Nf4 Nf6 9.Bd3 g5 10.Nh5 Ne6 11.0–0 0–0–0 12.Nf6 Qf6=) 8.Nf4 a5 9.b5 Ne6 10.Qe2 Bd7 11.Nd2 Qa3 12.c4 Qb2+=; D) 7.Nd2 Nf6 (7...Bg4 8.h3 Bf5 9.g4 Bd3 10.Bg2 Nf6 11.Nf3 Be2 12.Qe2 Qe2=; 7...Bf5 8.Nf3 Nf6 9.Ne5 Nd7 10.Nd7 Bd7 11.Be3 c6 12.Nf4 a5=; 7...Ne6 8.Nf3 a5 9.Qa4 Bd7 10.b5 Nf6 11.Rb1 Qd8 12.Ng3 Be7=) 8.Nf3 Ne4 9.Qb3 a5 10.b5 Be6 11.a4 Qf6 12.Nf4 Bd6=.

6.Ne2 Bf5 A) 7.b5 Na5 (7...Nd8 8.Ba3 Qe6 9.Bf8 Kf8 10.Qd2 Nf6 11.Qf4 Rc8 12.Nd2 Kg8=; 7...Nb8 8.Ba3 Qe6 9.Bf8 Kf8 10.Qd2 Nf6 11.Qf4 c6 12.a4 Nbd7=) 8.Ba3 Qe6 9.Bf8 Kf8 10.Qa4 Nc4 11.Nd2 Nd2 12.Qa3 Ke8=; B) 7.Qa4 Nf6 8.Be3 Bd7 9.Qb3 a5 10.b5 a4 11.Qb2 a3 12.Na3 Nd4+=; C) 7.Be3 Nf6 (7...Bg4 8.h3 Bf5 9.Ng3 Bg6 10.Bb5 Qh4 11.Qa4 Nge7 12.0–0 a6+=; 7...a5 8.b5 Na7 9.Ng3 Bd7 10.Qb3 Nf6 11.Be2 h5 12.h4 Qe6=; 7...Qh4 8.Ng3 Bg4 9.Qd2 Qf6 10.Bd3 0–0–0 11.0–0 Re8 12.Bg5 Qd6+=) 8.Ng3 Bg4 9.Be2 Qe6 10.Bg5 0–0–0 11.0–0 Be2 12.Qe2 Qe2=.

6.Ne2 Nf6 A) 7.Be3 Bd7 (7...Ng4 8.Bf4 Bf5 9.Qa4 g5 10.Bg3 Nf6 11.b5 Nd8 12.b6 c6+=; 7...Bg4 8.Qa4 Bd7 9.Qb3 a5 10.b5 a4 11.Qb2 Na5 12.Nd2 a3+=; 7...h6 8.Nd2 Bd7 9.Qb3 0–0–0 10.Nf4 Qd6 11.b5 Na5 12.Qa4 Qa3+=) 8.Qb3 a5 9.b5 a4 10.Qb2 a3 11.Na3 Nb4 12.cb4 Qb4+=; B) 7.Qd3 Bd7 (7...Bg4 8.Bg5 0–0–0 9.h3 Be6 10.Qf3 Re8 11.Nd2 h6 12.Bf6 Qf6=; 7...Nd8 8.a3 Ne6 9.f4 a5 10.b5 Bd7 11.Be3 a4 12.f5 Nd8+=; 7...Ne4 8.Nd2 Nd6 9.a4 Bf5 10.Qf3 Qe6 11.a5 0–0–0 12.Nb3 Be4+=) 8.b5 Na5 9.Ba3 Qe6 10.Bf8 Rf8 11.Qg3 0–0–0 12.a4 Qg4–/+; C) 7.b5 Na5 (7...Nb8 8.Ba3 Qe6 9.Bf8 Rf8 10.Nd2 Bd7 11.Qb3 Kd8 12.Rb1 Re8=; 7...Nd8 8.Ba3 Qe6 9.Bf8 Rf8 10.Nd2 Qe7 11.Nf3 Ne4 12.Qb3 Qd6=) 8.Ba3 Qe6 9.Bf8 Rf8 10.Na3 Bd7 11.Qa4 b6 12.Rb1 a6+=; D) 7.Qa4 Bd7 (7...Ne4 8.Be3 Bf5 9.Nf4 Qd6 10.f3 Nf6 11.Bb5 Be7 12.g4 Bb1=; 7...Bf5 8.Be3 Bd7 9.Qb3 a5 10.b5 a4 11.Qb2 a3 12.Na3 Nb4+=; 7...a6 8.Bg5 Bd7 9.Qb3 Be6 10.Nf4 h6 11.Bf6 Qf6 12.Nd5 Qd8=) 8.b5 Nd8 9.Ba3 Qe6 10.Bf8 Rf8 11.Qa5 b6 12.Qa4 a6+=.

6.Be3 Bd7 A) 7.Be2 Qe6 (7...Nf6 8.Nf3 a5 9.b5 Na7 10.a4 Ng4 11.Bd2 Qe6 12.0–0 Bd6+=; 7...0–0–0 8.b5 Nb8 9.Nf3 Qe8 10.Ne5 Bd6 11.0–0 Nf6 12.Qa4 Be5+=; 7...a5 8.b5 Na7 9.Qb3 Nf6 10.Nf3 Nc8 11.0–0 a4 12.Qc2 Nd6+=) 8.Nf3 Bd6 9.0–0 Nf6 10.Re1 0–0 11.Ng5 Qe7 12.b5 Nd8=; B) 7.Bd3 Nh6 (7...Nf6 8.Ne2 0–0–0 9.b5 Nb8 10.0–0 Ng4 11.Bf4 g5 12.Bd2 Re8+=; 7...Qf6 8.Nf3 Bg4 9.Nbd2 Bd6 10.0–0 h6 11.Re1 Nge7 12.b5 Nd8+=; 7...0–0–0 8.Nf3 Re8 9.b5 Nd8 10.Qa4 Kb8 11.0–0 Nf6 12.Re1 h6+=) 8.Ne2 Nf5 9.Bf4 0–0–0 10.b5 Nb8 11.Qb3 g5 12.b6 ab6=; C) 7.Nf3 Nh6 (7...Nf6 8.Be2 Ng4 9.Bg5 f6 10.Bd2 g5 11.0–0 0–0–0 12.b5 Na5+=; 7...Bg4 8.Be2 Nf6 9.0–0 Ne4 10.Re1 Qf6 11.Nfd2 Bf5 12.Ne4 de4+=; 7...0–0–0 8.Bd3 Re8 9.b5 Nd8 10.Qa4 Kb8 11.0–0 Nf6 12.Re1 Ne6+=) 8.Be2 Nf5 9.Bg5 f6 10.Bc1 0–0–0 11.0–0 Re8 12.Re1 Qd6=.

6.Be3 Bf5 A) 7.Be2 Qe6 (7...0–0–0 8.Qa4 Qe6 9.Nf3 Kb8 10.0–0 Bd6 11.b5 Nce7 12.c4 Bf4+=; 7...Nf6 8.Nf3 0–0–0 9.0–0 Ng4 10.Bg5 f6 11.Nh4 Nf2 12.Rf2 Bb1+=; 7...Qd7 8.b5 Nce7 9.Nf3 Nf6 10.0–0 Ng4 11.Bd2 0–0–0 12.Qa4 Kb8=) 8.Nf3 Bd6 9.0–0 Nf6 10.Ng5 Qd7 11.Re1 0–0 12.Qb3 Rfe8+=; B) 7.Bb5 Nh6 (7...Nf6 8.Ne2 a5 9.Qa4 Bd7 10.0–0 Qd8 11.Bc6 bc6 12.ba5 Bd6=; 7...a5 8.Qa4 Bd7 9.Nf3 Qd8 10.Bc6 bc6 11.Qb3 Nf6 12.0–0 Be7=; 7...Bd7 8.Be2 Nf6 9.Nf3 a5 10.b5 Na7 11.a4 Ng4 12.Bd2 Qe6+=) 8.Ne2 Ng4 9.Qa4 Bd7 10.Bf4 a6 11.Qa3 a5 12.Bd3 Rc8+=; C) 7.Qa4 Nf6 (7...Qe6 8.Bb5 Nf6 9.Ne2 Be7 10.0–0 0–0 11.Bc6 bc6 12.Ng3 Bg6=; 7...Bd7 8.Qb5 a5 9.Qb7 Ra7 10.Qb5 ab4 11.Qd5 Nf6 12.Qb5 Ng4=; 7...Qe4 8.Nf3 Bd6 9.Ng5 Qc2 10.Qc2 Bc2 11.Bb5 Nge7 12.Na3 Bf5+=) 8.Bb5 Bd7 9.Ne2 a6 10.0–0 0–0–0 11.Bc6 Bc6 12.Qd1 Ng4+=; D) 7.Nf3 Qf6 (7...Nh6 8.Be2 Ng4 9.Bg5 f6 10.Bc1 g5 11.b5 Na5 12.0–0 Qe6+=; 7...Nf6 8.Be2 0–0–0 9.0–0 Ng4 10.Bg5 f6 11.Nh4 Nf2 12.Rf2 Bb1+=; 7...Qe6 8.Bb5 a5 9.Qa4 Nge7 10.0–0 Qc8 11.ba5 Bd7 12.Nbd2 Ra5+=) 8.Be2 Bd6 9.0–0 Nge7 10.Re1 0–0 11.Bg5 Qg6 12.Qd2 Be4=.

6.Be3 Nf6 A) 7.b5 Na5 (7...Nb8 8.Be2 Bd7 9.Nf3 Ng4 10.Bg5 f6 11.Bf4 Bb5 12.h3 Nh6=; 7...Nd8 8.Be2 Bf5 9.Nf3 Ne6 10.0–0 0–0–0 11.Re1 Kb8 12.Bd3 Ne4=; 7...Bg4 8.Qc2 Nd8 9.Bd3 Ne6 10.Ne2 0–0–0 11.0–0 Re8 12.Re1 Qd6=) 8.Qa4 b6 9.Be2 Ng4 10.Bf4 a6 11.Kf1 Qf6 12.Nh3 Bd7+=; B) 7.h3 Qe6 (7...Ne4 8.Qf3 Qh4 9.Bd3 Bd6 10.Ne2 Ne7 11.Na3 Bf5 12.Nb5 a6=; 7...Bf5 8.Nf3 0–0–0 9.b5 Na5 10.Qa4 b6 11.Be2 Ne4 12.0–0 Ng3=; 7...Bd7 8.Bd3 Ne4 9.Ne2 Qh4 10.Nd2 Bd6 11.Qc2 f5 12.Nf3 Qf6=) 8.Bd3 Bd6 9.Ne2 0–0 10.0–0 Re8 11.Nf4 Qd7 12.Qf3 Ne7=; C) 7.Ne2 Bd7 (7...Ng4 8.Bf4 Bf5 9.Qa4 g5 10.Bg3 Nf6 11.b5 Nd8 12.b6 c6+=; 7...Bg4 8.Qa4 Bd7 9.Qb3 a5 10.b5 a4 11.Qb2 a3 12.Na3 Nb4+=; 7...a6 8.Nf4 g5 9.Ne2 Ng4 10.Bc1 h6 11.h4 gh4 12.Qb3 Be6+=) 8.Qb3 a5 9.b5 a4 10.Qb2 a3 11.Na3 Nd4 12.Bd4 Ra3+=; D) 7.Be2 Qe6 (7...Ne4 8.b5 Nd8 9.Nf3 Qe6 10.Nfd2 Bd6 11.c4 Nd2 12.Nd2 f5=; 7...Bf5 8.Nf3 0–0–0 9.0–0 Ng4 10.Bg5 f6 11.Nh4 Nf2 12.Rf2 Bb1+=; 7...Nd8 8.Nf3 a5 9.b5 Qe6 10.Ng5 Qd7 11.0–0 Bd6 12.Re1 0–0=) 8.Nf3 Bd6 9.0–0 0–0 10.Re1 Re8 11.Nbd2 Qf5 12.Nb3 Ne4=.

6.Be3 Nh6 A) 7.Qe2 Nf5 (7...Bg4 8.f3 Be6 9.Bh6 Qh4 10.g3 Qh6 11.Bh3 Bb4 12.cb4 Nd4+=; 7...Ng4 8.Bg5 Qe2 9.Ne2 Be7 10.Bf4 a5 11.b5 Na7 12.a4 Kd8=) 8.Bf4 Be6 9.Nf3 0–0–0 10.Nbd2 Re8 11.Rd1 Qd8 12.Ne5 Ne5+=; B) 7.Ne2 Nf5 (7...Ng4 8.Bf4 Bf5 9.Qa4 Bd3 10.Qd1 Bg6 11.Qa4 Qd7 12.Nd2 Be7=) 8.Bf4 Be6 9.Qa4 g5 10.Bc1 Qf6 11.b5 Nce7 12.Nd2 Nc8+=; C) 7.b5 Na5 (7...Nb8 8.Ne2 Nf5 9.Bf4 g5 10.Bc1 Nd6 11.Na3 Ne4 12.Qb3 Be6+=; 7...Nd8 8.Be2 Nf5 9.Bc1 Nh4 10.g3 Ng6 11.Nf3 Bh3 12.Ba3 Qf6=) 8.Qa4 b6 9.Ne2 Nf5 10.Bf4 g5 11.Bc1 a6 12.ba6 Bd7+=; D) 7.Be2 Nf5 8.Bd2 Nh4 9.g3 Ng6 10.Nf3 Bh3 11.Ng5 Bg4 12.Be3 Be2=.

3.d4 e6

4.a4 Nf6 5.Bg5 Be7 6.Nd2 0–0 7.h3 (7.Ngf3 Re8=) 7...Qd6 8.Ngf3 Bd7 (8...e5 9.b5 ed4 10.bc6 dc3 11.Nb3 Qc6 12.Qc2=) 9.e3 Bc8 10.Bd3 (10.Bf4!? Qd8 11.Bd3+=) 10...e5+= 11.de5 Ne5 12.Qc2 Nd3 13.Qd3 a5 14.b5 c6 (14...Re8 15.Bf4 Qd7 16.c4=) 15.0–0= cb5 16.ab5 a4 17.Bf4 Qc5 18.Nb3 (18.Be5!?=) 18...Qc4–/+ 19.Nc1 Qd3 20.Nd3 Bd7 21.Rfb1 Rfc8 22.Be5 Ne4 (22...Bf5 23.Rd1–/+) 23.Nf4+= Rc5 (worse is 23...Nc3 24.Bc3 Rc3 25.Nd5+/–) 24.Bd4 Rb5 25.Rb5 Bb5 26.Nd5 Bd6 27.Ne1 a3 28.Nc2 a2 (28...Nd2 29.Nb6 Ra5 30.Ra2–/+) 29.f3 (better is 29.c4!? Bc6 30.Ndb4+=) 29...Nd2–/+ 30.Ncb4 Bb4 31.Nb4 Bc4 32.Kf2 Nb3 33.Ra2 Ra2 34.Na2 Nd4 35.ed4 Ba2 36.Ke3 Bd5 37.Kf4 f6 38.g4 Kf7 39.h4 Ke6 40.Ke3 b5 41.f4 Bf3?? 42.Kf3+– f5 43.g5 h5 44.Ke3 g6 45.Kd3 Kd5 46.c4 bc4 47.Kc3 Kd6 48.Kc4 Kc6 49.d5 Kc7 50.Kc5 (50.Kc5 Kd7 51.d6+–) 1–0. axxle (2255) – chessnaif (2425), net–chess.com, 2013. (=1.d4 d5 2.b4 Nc6 3.c3 e6)

4.Bf4 Nf6 5.a4 Ne4 6.Nf3 Be7 7.Nfd2 Nd2 8.Nd2 0–0 9.e3 Bf6 10.Bd3 e5 (10...Re8!?+=) 11.de5+/– Ne5 12.Be5 Be5 13.Qc2 (better is 13.Bh7!? Kh7 14.Qh5 Kg8 15.Qe5+/–) 13...h6 14.f4 (14.Nf3!? Bd6 15.0–0=) 14...Bd6–/+ 15.0–0 a5 16.Nf3 (16.b5 Bc5+=) 16...ab4–/+ 17.h3 (17.cb4!? Bb4 18.e4–/+) 17...Qe8 18.Rfe1 bc3 19.Qc3 Ra4 20.Qb3?? (better is 20.e4 Ra1 21.Qa1–+) 20...Ra1 21.Ra1 Qe3 22.Kh1 d4 (22...Bf5 23.Bc4 Qf4 24.Bd5–+) 23.Qc2 Bh3! (23...Bf4?! 24.Re1–/+) 0–1. jaortiz (2300) – chessnaif (2390), net–chess.com, 2013. (=1.d4 d5 2.b4 Nc6 3.c3 e6)

3.d4 Nf6

4.a4 Bf5 5.Bf4 e6 6.h3 Bd6 7.Bc1 (7.Bd6 cd6 8.e3 Rc8+=) 7...0–0–/+ 8.Bg5 Be7 (8...h6 9.Bf6 Qf6 10.Nf3–/+) 9.Nd2 Ne4 10.Be7 Ne7 11.Ne4 Be4 12.e3 a5 13.Nf3 Qd6 (13...ab4 14.cb4 Nc6 15.b5+=) 14.b5 b6 15.Bd3 Ng6 (15...Bd3 16.Qd3 c5 17.0–0=) 16.Be4+= de4 17.Nd2 c5 (17...f5 18.Qb3+=) 18.Nc4 (18.Ne4 Qd5 19.Qf3 Qc4+=) 18...Qc7= 19.0–0 (19.Qc2 Rad8=) 19...Rad8 (19...cd4 20.Qd4 Rac8 21.Na3+=) 20.Qe2 cd4 21.cd4 (worse is 21.ed4 Rc8 22.Na3 Qc3 23.Qe4 Rfd8–/+) 21...e5 22.de5 Ne5 23.Ne5 Qe5 24.Qc4 h5 25.Qc6 Rd6 26.Qc4 h4 (26...Rfd8 27.Rac1=) 27.Rac1 (27.Rad1 Rfd8 28.Rd6 Rd6 29.Qc8 Kh7+=) 27...Rg6 (27...Rfd8 28.Qc7 R8d7 29.Qb8 Rd8 30.Rc8=) 28.f4 (28.Rfd1 Qf5 29.Kf1 Rf6+=) 28...Qb2 (28...Qf5 29.Qd4 Qh3 30.Qe4=) 29.Rf2 (29.Qe4 Re6 30.Qd3 Rfe8+=) 29...Qa3= 30.Rc3 Qe7 (30...Qa1 31.Rf1 Qb2 32.Rc2=) 31.Rfc2 (31.Rd2 Rd6 32.Rd6 Qd6=) 31...Rg3 (31...Rd8 32.Qe2=) 32.Qc6 (better is 32.Qd4 Qb4 33.Qb6 Qa4 34.Rc8+/–) 32...g5 (32...Rg6 33.Qc7 Qb4 34.Qc4=) 33.fg5 (better is 33.Qb6!? gf4 34.ef4 Rc3 35.Rc3+/–) 33...Qg5+= 34.Kf1 (better is 34.Qb6!? Rh3 35.Qd4+=) 34...Re3+= 35.Re3 Qe3 36.Re2 Qf4 37.Kg1? e3 38.Qb6?? Qa4 39.Re3+= Qd1 40.Kh2+/– a4? 41.Qh6 Qd4 42.Qg5 Kh7 43.Qf5 Kh6?? 44.Re4 Qd6+/– 45.Kg1 Qg3?? 46.Qf6+– (46.Qf6 Kh7 47.Rh4 Qh4 48.Qh4 Kg6 49.Qg3 Kh7 50.b6+–) 1–0. capacuba (2210) – olo (2165), net–chess.com, 2013. (=1.d4 d5 2.c3 Nc6 3.b4 Nf6)

4.Nd2 e6 5.Ngf3 =.

4.Nd2 g6 5.Ngf3 Bg7 6.e3 Bf5 (6...0–0 7.b5 Nb8 8.c4=) 7.b5 White launches an attack 7...Na5 (7...Nb8 8.c4=) 8.Qa4 (8.Ba3+=) 8...Nc4 (better is 8...c6!?=) 9.Nc4+/– dc4 10.Bc4 Bd7 (10...Ne4 11.0–0+/–) 11.Ne5 0–0 12.Qb3 e6 (12...Qe8 13.0–0+–) 13.Bd3 (13.a4 Ne4 14.Ba3 Nd6+–) 13...Rb8 (13...Bc8 14.Ba3 Re8 15.Rd1+–) 14.0–0 c6 (14...a6 15.a4+–) 15.a4 (15.Ba3 Re8+–) 15...a6 (15...Qc7 16.e4+–) 16.Ba3 (worse is 16.Nd7 Qd7 17.Rd1 Qd5 18.Qd5 Nd5+–) 16...Re8 17.Bd6 Ra8 18.ba6 (18.Nd7?! Qd7 19.Bc5 Qc7+–) 18...Ra6 (18...ba6 19.Rfb1 Nd5+–) 19.Qb7 Rb6 (19...Ra8 20.a5+– (20.Nc6?! Bc6 21.Qc6 Rc8+=)) 20.Qa7 Nd5 (20...Rb3+–) 21.Nd7 Re7 (21...Rb3+–) 22.Be7 Qe7 23.Qa8 Bf8 24.Nb6 Nb6 25.Qc6 Nd5 26.a5 Nc7 27.a6 Na6 28.Ra6 Kg7 29.c4 (29.Rb1 Qd8 30.Rb7 Be7+–) 29...Qb4 30.Ra7 Qc3 31.Qe6 Qd4 32.Rf7 Kh6 33.Qh3 Kg5 34.f4 Qf4 35.ef4 1–0. Trkn – guest227, ICC, 2005.

4.f3 e6 5.g4 Be7 6.Ba3 Nd7 7.e3 Bh4 8.Ke2 b6 9.f4 Ba6 10.Kd2 Bc4 (10...Bf1 11.Qf1 a6 12.Nf3–/+) 11.Kc1 (11.Bc4!? dc4 12.Nf3+=) 11...Bf2 12.Nf3 (better is 12.Bc4!? Be3 13.Kb2 dc4 14.Qf3 Bg1 15.Qc6+= (worse is 15.Rg1 Ne7–/+)) 12...Be3–/+ 13.Nbd2? (better is 13.Nfd2!? Bf1 14.Rf1–/+) 13...Bf1–+ 14.Rf1 Bf4 15.Qa4 Ne7 16.b5 a5 17.ba6 Ra7 18.g5 (18.Kd1 0–0–+) 18...g6 (18...Nf5 19.Bb4–+) 19.Rb1 (19.Be7 Qe7 20.Kd1 h6 (20...Bg5 21.Ne5 Bd2 22.Rf7 Qf7 23.Nf7 Bc3 24.Rc1 Bd4 25.Qd4+/–) 21.gh6 Rh6–+ (21...Bh6?! 22.Ne5 Rh7 23.Nc6–/+)) 19...0–0 (19...Nf5 20.Qb5–+) 20.Ne5? (20.Kd1 Re8–+) 20...Bd2 (better is 20...Ne5 21.de5 Be5–+) 21.Kd2 Ne5 22.de5 Re8 23.Be7 Re7 24.h4 Qa8 25.Qb4 Re8 26.Qf4 f5?? 27.ef6 Kf7+= 28.h5 Ra6?? 29.Qc7 Kf8 30.Qg7 1–0. Thrustnicely – Epenz, playchess.de, 2003. (=1.d4 d5 2.b4 Nc6 3.c3 Nf6)

4.f3 Bf5 5.e4 de4 6.Qc2 Qd5 7.c4? (better is 7.Qb3 e6 8.Bg5–/+) 7...Qd4–+ 8.Bb2 Qd6 9.g4 Bg6 (9...Qb4?! 10.Bc3 Qc5 11.gf5–/+) 10.Bf6 (10.c5 Qf4 11.Qc4 0–0–0–+) 10...Qf6 11.Qc3 Qf4 12.Nh3 Qh6 (better is 12...Qf3 13.Qf3 ef3 14.Nc3–+) 13.b5 Nb8 14.g5 (14.Bg2 ef3 15.Bf3 c6–+ (15...Qh3?! 16.Bc6 Nc6 17.Qh3–/+)) 14...Qh5 (14...Qh4 15.Kd1–+) 15.Ke2? (15.Nd2 ef3 16.Qf3 Qf3 17.Nf3 e5–+) 15...e6 16.Nf4 ef3 17.Ke3?? (17.Qf3 Qf3 18.Kf3–+) 17...Bc5 18.Kd2 Qg5 19.Qf3 c6 20.bc6 Nc6 21.Nc3 Bb4 22.Rc1 0–0–0 23.Ke3 e5 24.Ncd5 ef4 25.Qf4 Bc5 26.Kf3–+ Bh5 27.Ke4 Rhe8 28.Kd3 Qf4 0–1. igor_d – steinlager, gameknot.com, 2013. (=1.d4 d5 2.c3 Nc6 3.b4 Nf6)

4.Bf4 Bf5 5.Nf3 e6 6.Ne5 (6.e3 Bd6=) 6...Ne5+= 7.Be5 Ne4 8.g4? (better is 8.Qa4!? c6 9.b5+=) 8...Bg4–+ 9.f3?? (better is 9.Bg2–+) 9...Qh4 10.Bg3 Ng3 11.Qa4 (11.hg3 Qh1 12.fg4 Bd6–+) 11...c6 12.hg3 Qh1 13.fg4 Qe4 (13...Bd6!? 14.Nd2 Qg1 15.0–0–0–+) 14.b5 a6 (14...Qg4 15.bc6 Qg3 16.Kd1–+) 15.bc6 b5 16.Qd1 (16.Qa5 Bd6 17.Kd2 Bg3–+) 16...Qg4 17.Qd3 Bd6 18.Nd2 (18.Kf2 Rc8–+) 18...0–0 (18...Qg3 19.Qg3 Bg3 20.Kd1–+) 19.0–0–0 (19.Kf2 Rac8–+) 19...Rfc8 (worse is 19...Bg3 20.e4–+) 20.Bg2 Rc6 21.Rh1 g6 22.Rh4 (22.e4 Rac8 23.Nb1 b4–+) 22...Qg5 (better is 22...Qg3 23.Qg3 Bg3 24.Rh3 Rc3 25.Kd1–+) 23.e4 (23.Kd1 Rac8 24.Nb1–+) 23...Rac8 24.e5 Rc3 (24...Rc3 25.Qc3 Rc3 26.Kd1 Bb4–+) 0–1. Blum,Steffen (1910) – Wieland,Daniel (1695), remoteschach.de, 2009.

4.b5 Na5–/+

5.Qa4 A) 5...Nc4 6.Nf3 (6.Nd2 Nd6 7.Ngf3 Bd7 8.c4 dc4 9.Nc4 a6 10.Nd6 ed6 11.Qb3 ab5 12.e3; 6.Na3 Nd6 7.Nf3 Bf5 8.Ne5 Nd7 9.Bf4 a6 10.Qb3 e6 11.e3 ab5 12.Nb5; 6.e3 Nb6 7.Qb3 Bf5 8.Nf3 e6 9.Nbd2 Bd6 10.Be2 0–0 11.0–0 h6 12.Ba3) 6...Bd7 7.Ne5 a6 8.Nd7 Qd7 9.Na3 Nd6 10.e3 g6 11.c4 Bg7 12.c5; B) 5...b6 6.Nf3 (6.Nd2 Bd7 7.Ngf3 a6 8.e3 Nc4 9.Bc4 ab5 10.Qb5 Bb5 11.Bb5 Nd7 12.Ne5; 6.e3 Bd7 7.Qc2 g6 8.Nf3 Bg7 9.Bd3 0–0 10.0–0 c5 11.bc6 Nc6 12.Nbd2; 6.Na3 e6 7.Nf3 Ne4 8.Bb2 Bd6 9.e3 0–0 10.Bd3 Bb7 11.0–0 a6 12.Qc2; 6.Bf4 Nh5 7.Bd2 a6 8.ba6 Bd7 9.Qd1 Nf6 10.Nf3 Nc4 11.Bg5 Ra6 12.Nbd2) 6...a6 7.ba6 Bd7 8.Qc2 Ra6 9.Nbd2 g6 10.e4 Ra8 11.Bd3 Bg7 12.Bb2; C) 5...c6 6.bc6 (6.Nf3 cb5 7.Qb5 Bd7 8.Qd3 g6 9.Ne5 Bg7 10.Bf4 0–0 11.Nd2 Bf5 12.Qb5; 6.Nd2 cb5 7.Qb5 Bd7 8.Qd3 g6 9.Ngf3 Bg7 10.Ne5 0–0 11.Nd7 Qd7 12.g3) 6...Nc6 7.Nf3 g6 8.c4 Bg7 9.Nc3 dc4 10.e4 Bg4 11.Be3 0–0 12.e5.

5.Nd2 A) 5...Bd7 6.e3 Rc8 7.Ngf3 c6 8.bc6 Rc6 9.Qc2 Qc7 10.Bb2 e6 11.Ne5 Rb6 12.Rc1; B) 5...a6 6.ba6 (6.e3 ab5 7.Bb5 Bd7 8.Bd7 Nd7 9.Ba3 g6 10.Ngf3 Bg7 11.0–0 0–0 12.Rb1) 6...Ra6 7.Ngf3 Nc6 8.e3 Rb6 9.a4 Na5 10.Ba3 Bf5 11.Bb5 c6 12.Bb4; C) 5...Bf5 6.Ngf3 (6.e3 c6 7.Ngf3 e6 8.Nh4 Bg4 9.Qa4 a6 10.ba6 b5 11.Qc2 Ra6 12.h3) 6...c6 7.Ne5 Qb6 8.Ba3 e6 9.Bf8 Rf8 10.a4 0–0–0 11.e3 Kb8 12.Qf3; D) 5...Qd6 6.Ngf3 (6.e3 Bf5 7.Ngf3 e6 8.Ne5 Nd7 9.g4 Bg6 10.Ng6 hg6 11.Qa4 b6 12.Bb2; 6.Qa4 Qb6 7.Ngf3 Bd7 8.e3 a6 9.Rb1 Ng4 10.h3 Nf6 11.Ne5 ab5 12.Bb5; 6.a4 Ng4 7.Ba3 Qg6 8.Bb4 b6 9.e3 Bf5 10.h3 Nf6 11.Ngf3 Bc2 12.Qc1) 6...a6 7.ba6 Qa6 8.e3 Qb6 9.Bd3 g6 10.0–0 Bg7 11.Rb1 Qd6 12.e4; E) 5...c6 6.e3 (6.bc6 Nc6 7.Ngf3 e6 8.Qc2 Bd6 9.e4 Ne4 10.Ne4 de4 11.Qe4 0–0 12.Bd3; 6.a4 g6 7.Ngf3 Bg7 8.e3 Bf5 9.Ne5 0–0 10.g4 Be6 11.Bb2 Ne4 12.bc6; 6.Ngf3 cb5 7.e3 Nc4 8.Bd3 Nd6 9.Ne5 Bf5 10.Bf5 Nf5 11.Qb3 a6 12.a4) 6...Qb6 7.Ngf3 cb5 8.Bd3 g6 9.Rb1 a6 10.0–0 Bg7 11.a4 Bf5 12.Bf5.

5.e3 A) 5...c5 6.dc5 (6.Nf3 cd4 7.cd4 Bf5 8.Nc3 Rc8 9.Bd2 Ne4 10.Ne4 de4 11.Nh4 Bd7 12.Qh5; 6.Nd2 cd4 7.cd4 Bf5 8.Ngf3 Rc8 9.Ne5 Bc2 10.Qf3 e6 11.a3 Bd6 12.Be2) 6...Bd7 7.Nf3 e6 8.Ba3 Ne4 9.Qd4 Rc8 10.c4 Qf6 11.cd5 ed5 12.Nbd2; B) 5...Bf5 6.Nf3 (6.Nd2 g6 7.Ngf3 Bh6 8.Qa4 b6 9.Be2 0–0 10.Ba3 a6 11.ba6 Bc8 12.Qb4; 6.Qa4 c6 7.bc6 Nc6 8.Nf3 a6 9.Ne5 b5 10.Nc6 Qb6 11.Bb5 Qb5 12.Qb5) 6...e6 7.Nbd2 c6 8.Nh4 Bg4 9.Qa4 a6 10.ba6 b5 11.Qc2 Ra6 12.h3; C) 5...e6 6.Nd2 (6.Nf3 Bd7 7.Nbd2 Bd6 8.Bd3 c6 9.a4 0–0 10.0–0 Qb6 11.Qe2 Qc7 12.Ba3; 6.Bd3 c5 7.Nf3 c4 8.Bc2 Bd7 9.0–0 Bd6 10.a4 Ne4 11.Ba3 Ba3 12.Ra3) 6...Bd6 7.Ngf3 Bd7 8.Ne5 c6 9.Nd7 Qd7 10.Qa4 Qc7 11.Ba3 Ba3 12.Qa3; D) 5...Bg4 6.Nf3 g6 7.Nbd2 Bh6 8.Bd3 0–0 9.0–0 c6 10.h3 Bf5 11.Bf5 gf5 12.Ne5; E) 5...g6 6.Nf3 (6.Nd2 Bh6 7.Ngf3 c6 8.Ne5 0–0 9.h4 Bg7 10.Bd3 cb5 11.Bb5 Nd7 12.Nef3; 6.Bd3 Bf5 7.Nf3 Bd3 8.Qd3 a6 9.ba6 Ra6 10.Nbd2 Bg7 11.0–0 0–0 12.Rb1; 6.Ba3 Bg7 7.Nd2 0–0 8.Bb4 b6 9.Ngf3 a6 10.Ba5 ba5 11.ba6 c5 12.Bb5; 6.Qa4 c6 7.Nd2 a6 8.ba6 b5 9.Qd1 Bg7 10.a4 0–0 11.ab5 cb5 12.Ngf3) 6...Bg7 7.Nbd2 0–0 8.Bd3 c6 9.bc6 Nc6 10.0–0 Bd7 11.Ba3 Qa5 12.Qb3.

5.Nf3!?–/+ A) 5...c6 6.e3 (6.bc6 Nc6 7.Nbd2 g6 8.e3 Qc7 9.Bb2 Bh6 10.Bd3 Bf5 11.Bf5 gf5 12.c4; 6.Na3 cb5 7.Nb5 a6 8.Na3 Qc7 9.Bb2 Bf5 10.Ne5 e6 11.f3 Nc6 12.Qa4; 6.a4 Qc7 7.g3 cb5 8.ab5 Bd7 9.Bg2 Nc4 10.Bf4 Qb6 11.Nbd2 Nd2 12.Bd2; 6.Bf4 cb5 7.e3 Nc4 8.Nbd2 Qa5 9.Qb3 Bd7 10.Be2 Nd2 11.Nd2 Rc8 12.Rc1) 6...g6 7.Nbd2 Bg7 8.Bd3 cb5 9.Bb5 Bd7 10.Bd7 Nd7 11.Ba3 0–0 12.0–0; B) 5...a6 6.e3 (6.ba6 Ra6 7.Nbd2 Bd7 8.Ne5 Rb6 9.Ba3 Ng4 10.Bc5 Ne5 11.Bb6 cb6 12.de5) 6...ab5 7.Bb5 Bd7 8.Bd7 Nd7 9.0–0 e6 10.Ba3 Be7 11.Be7 Qe7 12.Nbd2; C) 5...Ne4 6.Qa4 (6.Ng5 Nd6 7.Na3 Bd7 8.e3 e6 9.Nf3 Ne4 10.Bd3 Bd6 11.0–0 0–0 12.Ne5; 6.Na3 e6 7.Qa4 c5 8.bc6 bc6 9.Nb1 Rb8 10.Nfd2 Nf6 11.Nb3 Nc4 12.N1d2; 6.Ne5 f6 7.Nd3 Kf7 8.f3 Nd6 9.Na3 c6 10.Rb1 Bd7 11.bc6 Bc6 12.Kf2; 6.Nfd2 Nd6 7.Na3 c6 8.e3 Bf5 9.Be2 e6 10.c4 Be7 11.c5 Nb5 12.Nb5; 6.Qc2 Bf5 7.Nbd2 Nd6 8.Qa4 c6 9.bc6 b5 10.Qa3 Rc8 11.Nh4 Nc6 12.Nf5) 6...Nc4 7.Nbd2 Nc3 8.Qb3 Nd2 9.Nd2 Ne4 10.e3 Bf5 11.Ne4 de4 12.Ba3; D) 5...Bf5 6.Nbd2 (6.Qa4 c6 7.Ne5 Qb6 8.bc6 Nc6 9.Nd2 e6 10.e3 Be7 11.Nc6 bc6 12.Be2; 6.Ne5 Nd7 7.Nd2 Ne5 8.de5 c6 9.Qa4 Qc7 10.Nf3 cb5 11.Qb5 Bd7 12.Qd3; 6.e3 g6 7.Qa4 c6 8.Nbd2 a6 9.ba6 b5 10.Qd1 Ra6 11.Ne5 Bg7 12.g4) 6...a6 7.ba6 Ra6 8.e4 Re6 9.Ng5 Re4 10.Nge4 de4 11.Be2 e6 12.Qa4; E) 5...Bd7 6.e3 (6.Ne5 Bb5 7.Na3 Bd7 8.g3 Ne4 9.Qd3 Be6 10.Bg2 f6 11.Nf3 g6 12.Nd2; 6.Qc2 Bb5 7.Na3 Bd7 8.Ne5 g6 9.g3 Bf5 10.Qa4 c6 11.Bg2 Bg7 12.0–0) 6...g6 7.Nbd2 Bg7 8.Ba3 0–0 9.Ne5 Rc8 10.Bb4 b6 11.Qa4 c6 12.Nd7.

5.Bg5 a6 6.ba6 (6.Bf6 gf6 7.ba6 Ra6 8.Nf3 Rb6 9.Nbd2 Bf5 10.Nh4 Bg4 11.Rb1 Bh6 12.Rb6) 6...Ra6 7.Nd2 h6 8.Bf6 ef6 9.Ngf3 Bd7 10.e3 Rc6 11.Qa4 b6 12.Qb5.

5.Bg5 Ne4 6.Nh3?? (6.Nf3 a6 (6...f6 7.Bc1 a6 8.Qc2 ab5 9.Nbd2 Nd2 10.Bd2 Nc4 11.e3 Na3 12.Qb2) 7.ba6 Ra6–/+ 8.Nbd2 f6 9.Bf4 Nc3 10.Qc2 Rc6 11.Qb2 g5 12.Rc1) 6...f6 (better is 6...Bh3 7.gh3 Ng5–+) 7.Bf4 (7.Bc1–/+) 7...b6 (better is 7...g5!? 8.Bc1 Bf5–+) 8.f3 (better is 8.e3+=) 8...Nc3?? (better is 8...Nd6–/+) 9.Nc3+– e6 (9...g5 10.Bg3+–) 10.Rb1 (10.e3 Bd6+–) 10...Nc4 (10...Bd6 11.e4+–) 11.Qd3 (better is 11.e4!? g5 12.Bc4 dc4+–) 11...Na3 (11...a6 12.e4+–) 12.Rb3 (better is 12.Rc1+–) 12...g5? (12...a6 13.Qd2+–) 13.Bc1 (better is 13.Ng5!? Qe7 14.Nge4 de4 15.Qe4 Rb8+–) 13...Nc4 14.Rb4?? (better is 14.e4 a6 15.ed5 ed5 16.Nd5 Qd5 17.Qc4 Qc4 18.Bc4 ab5 19.Bb5 Kf7 20.a3+–) 14...Bb4–+ 0–1. Fellhuber,Angelika (2000) – Birke,Birke (1930), remoteschach.de, 2010. (=1.d4 d5 2.b4 Nc6 3.c3 Nf6)

3.Nf3 Nf6

4.d4 Bf5 =.

4.e3 Bg4 5.g3 Ne5 6.Bg2 Nd3 7.Kf1 Ne4 8.Ne1 (8.Qa4 Bd7 9.Qc2 Nef2 10.Ne5–+) 0–1. Geordiedazza – pcmvr, ChessWorld.net, 2003.

3.Nf3 Nf6 4.g3 e6 5.Bg2 Bd6 6.0–0 e5 7.d3 0–0 8.Bg5 h6 9.Bf6 (9.Be3 Be6+=) 9...Qf6 (9...gf6?! 10.Nbd2=) 10.d4 (10.Nbd2 Be6+=) 10...e4–/+ 11.Nfd2 Bg4 (11...a5 12.b5 Na7 13.Qb3+=) 12.f3 ef3 13.Bf3 Bf3 14.Rf3 Qe6 15.Nb3 (15.e3 a6+=) 15...Rfe8–/+ 16.Nc1 Be7 17.Nd2 Bg5 18.Nf1 (18.Ndb3 b6–/+) 18...Bc1 19.Rc1 Qe2 20.Qe2 Re2 21.a4 (21.b5 Na5 22.Ne3 c6–/+) 21...Rae8 22.a5 (22.Rf2 Kf8–/+) 22...Nd8 23.h4 (23.Rf2 c6–/+) 23...c6 (23...Kf8 24.Rf2–/+) 24.Nh2 (24.Rf2 R2e7–/+) 24...h5 25.Rcf1 (25.Rf5 g6 26.Rf2 R2e3–/+) 25...R2e7 (25...b6 26.ab6 ab6 27.b5–/+) 26.Kg2 b6 27.ab6 ab6 (27...Re2 28.R1f2 ab6 29.b5–/+) 28.Kh3 (28.g4 hg4 29.Ng4 Re2 30.R1f2 R8e4 31.Re2 Re2 32.Kg3 Ne6–/+) 28...Ne6–+ 29.Re1? (better is 29.Ra1–+) 29...Nf4!! 30.gf4 (30.Rf4 Re1 Discovered attack; 30.gf4 Re1 Discovered attack) 30...Re1 31.Rg3 R8e2 0–1. Geordiedazza – marekt, ChessWorld.net, 2003.

2.c3 d4

3.a4 dc3 4.Nc3= e5 5.Ba3 (5.Nf3 Bb4 6.Ne5 Be6=) 5...Nc6 (5...Nf6 6.Nf3 Nc6 7.b5 Ba3 8.Ra3=+) 6.g3 (6.b5!? Ba3 7.Ra3=+) 6...Bb4–/+ 7.Qb3 (7.Bg2 Nge7–/+) 7...Ba3 (7...Nd4 8.Qb2 Ba3 9.Ra3–+) 8.Qa3 Nge7 (8...Nd4 9.Qb2–+) 9.Nh3 (9.Bg2 0–0–/+) 9...0–0–+ 10.Bg2 Nd4 (better is 10...Bf5–+) 11.Qc1? (11.Qb2 Bg4–+) 11...Bf5 12.Ra2 e4 13.0–0 Qd7 14.Nf4 g5 15.e3? Nf3 16.Bf3–/+ ef3 17.Nh5 Bh3?? 18.Nf6+– Kg7 19.Nd7 Rfd8 20.Ne5 Bf1 21.Kf1 Nf5 22.Ng4 h5 23.Ne5 h4 24.Nf3 hg3 25.fg3 Rh8 26.Kg2 g4 27.Nh4 Nh4 28.gh4 Rh4 29.Qe1 Rah8 30.Qg3 Rh3 31.Qg4 Kf8 32.Qh3 Rh3 33.Kh3 (33...Ke7 34.Nb5+–) 1–0. landrover – vello01, Live Game Caissa's Web, 2005.

3.a4 Nc6 4.b5 Ne5 5.cd4 Qd4 6.Nc3 =.

3.c4 e5 4.b5 (4.a3 Nf6=+) 4...Bc5 5.Qa4 (5.Qb3 Nd7–/+) 5...Qf6 (5...Nf6 6.d3–/+) 6.b6 (6.d3 Nd7–/+) 6...Bd7 (6...c6–/+) 7.Qb3 (better is 7.bc7!? Na6 8.Qb3–/+) 7...ab6–+ 8.d3 Ba4 (8...e4 9.Ba3 e3 10.Nf3 ef2 11.Kf2–+) 9.Qb2 Nh6 10.f3 (10.Nf3 Nc6–+) 10...0–0 11.g4? (11.Nd2 Nc6 12.a3 Qg6–+) 11...Na6 (11...Qh4 12.Kd2 Nc6–+) 12.g5=+ Qd6 (better is 12...Bb4!? 13.Bd2 Bd2 14.Qd2 Qe7=+) 13.gh6+= gh6 14.Bh3 Nb4 15.Kf2?? Nc2–/+ 16.e4?? Ba3 17.Na3+– Na1 18.Qa1 Bd7 19.Nb5 Bb5 20.cb5 Ra5 21.a3 Rb5 22.a4 Ra8 23.Ne2 Rba5 24.Ba3 Qc6? 25.Rg1 Kh8 26.Rc1?? Qa4= 27.Rc7 Qa3 28.Qa3 Ra3=+ 29.Rf7 Rd3 30.Rb7 Rd2–/+ 31.Rb6? d3–+ 32.Ke1?? Raa2 33.Nc3=+ Rac2 34.Rb8 Kg7 35.Rb7 Kg6 36.Rb6?? Kg5–/+ 37.Nd1? Rh2–+ 38.Rh6 Kh6 39.Bf1 d2# 0–1. mboudoir – bigfatchris, net–chess.com, 2002.

3.Nf3 f6 4.cd4 e5 5.de5 fe5 6.Qa4 (6.Ne5 Qd4 7.Nc3 Qe5–/+) 6...Bd7 7.b5 e4?? (better is 7...Bd6+/–) 8.Qe4+– Qe7 (8...Ne7 9.Qb7 Nbc6 10.bc6 Nc6+–) 9.Qb7 Qd8 10.Qa8 Bb5 11.Nc3 a6 (11...Bd7 12.Qa7 Nc6 13.Qe3 Be7 14.Ba3+–) 12.Rb1 Qe7 (12...Nd7 13.Qd8 Kd8 14.Nb5 ab5 15.Rb5 c6+–) 13.Nb5 ab5 14.Rb5 (14...Nf6 15.Ne5 Qe5 16.Re5 Kf7 17.Qb8+–) 1–0. miehnekort – audioweaponsystems, Yahoo, 2005.

3.Bb2

3.Bb2 (--> 1.b4 d5 2.Bb2 d4 3.c3).

3.Bb2 dc3 (--> 1.b4 d5 2.Bb2 d4 3.c4 (c3) dc3).

3.Nf3 dc3!?

4.Nc3 Nc6 5.Qa4 Bd7 6.b5 Nb8 7.Ne5 c6 8.d4 cb5 9.Nb5 Nc6 (better is 9...Nf6!?+=) 10.Nd7+/– Qd7? (better is 10...Kd7 11.Bg5 Qa5 12.Qa5 Na5+/–) 11.d5!+– Ne5 (11...Qd5 12.Nc7) 12.Nc7 Kd8 13.Qd7 Nd7 14.Na8 Kc8 (14...Ngf6 15.Bb2+–) 15.Bb2 Kb8 (15...b6 16.Rc1 Nc5 17.Be5+–) 16.Rc1 Ka8 (16...b6 17.Nc7 Nc5+–) 17.Rc8 Nb8 18.Be5 (18...a6 19.Rb8 Ka7 20.Rf8+–) 1–0. NN – NN, Internet, 2005.

4.Nc3 e6 =.

4.Nc3 Nf6 =.

2.c3 Qd7

3.e3 e5 4.Bb2 +=.

3.e3 e6 4.Nf3= Nc6 5.Bb2 a5 6.a3 ab4 7.ab4 Ra1 8.Ba1 b6 9.Bb2 Bb7 10.d4 Bd6 11.Bd3 Nf6 12.Qc2 g6 (12...0–0 13.0–0=) 13.0–0+= 0–0 14.h3 Kg7 15.Re1 Ra8 16.e4 (16.b5!? Na5 17.Ne5=) 16...de4+= 17.Be4 Ne4 18.Qe4 e5 (better is 18...Ra2 19.Bc1 Kg8=) 19.de5+/– Be5?? (better is 19...Be7+/–) 20.Ne5+– Ne5 21.Qe5 (worse is 21.Qb7 Ra2 22.Bc1 b5+–) 21...Kg8 (21...f6 22.Qe7 Qe7 23.Re7 Kf8 24.Rc7+– (24.Rh7?! Ra2+–)) 22.Qe2 (22.c4 f6 23.Qf6 Qe7 24.Qe7 Bg2 25.Qg7) 22...Qc6+– 23.f3 Rd8 24.Kh1 h6 25.Nd2 Kh7 (25...Qd6 26.c4+–) 26.Nf1 Rd6 (26...Qd6 27.c4+–) 27.Ne3 (27.Qe7!? Kg8+–) 27...Qd7 28.Rd1 (28.Ng4 h5 29.Ne5 Qe7+–) 28...Rd1 29.Qd1 Qd1 30.Nd1 c5 31.bc5 bc5 32.Nf2 Bc6 (32...f5 33.c4 Ba6 34.Nd3 Bc4 35.Nc5+–) 33.Kh2 (33.c4 Bb7 34.Ne4 Be4 35.fe4 g5+–) 33...Bd7 (33...c4 34.Ng4+–) 34.g4 (better is 34.Ne4!? Bc6 35.Nc5 Bd5+–) 34...Be6 35.Kg3 c4 36.Ba1 (36.Kf4 f6+–) 36...Kg7 37.Ne4 f6 38.Bb2 f5 39.gf5 Bf5 40.Bc1 Be4 (40...Kh7 41.Nf6 Kg7 42.Ne8 Kh7 43.Be3+–) 41.fe4 Kf6 (41...h5 42.Be3+–) 42.Be3 (42.Bh6!? Ke7+–) 42...Ke6 (42...g5 43.Bg5! Ke5 44.Kf3+–) 43.Kf3 1–0. Fournier,Frederic (1845) – latomatina7 (1920), Active blind, 2011.

3.e3 Nf6 4.Nf3 c5 (better is 4...Qd6!?=) 5.bc5+/– Nc6 6.d4 e5 7.de5 Ne5?? (better is 7...Ne4+=) 8.Ne5+– Qe6 9.Nf3 (9.Bb5 Bd7 10.Nd7 Nd7+–) 9...Bd7 10.Be2 Bb5 (10...Bc5 11.Nd4 Qe5+–) 11.Bb5 (11.Bb5 Ke7 12.c6 bc6 13.Ba3 Kd8 14.Nd4+–) 1–0. Fournier,Frederic (1825) – offnennen (1815), Active blind, 2011.

3.Nf3 a5 4.ba5 Nf6 5.d4 =.

3.Nf3 Qd6 =.

3.Nf3 Qe6 4.d4 Bd7 (4...Nf6 5.Nbd2=) 5.Bf4 a5 (5...Nf6 6.e3+=) 6.ba5 Ra5 7.Bc7 Ba4 8.Qd3 g6?? (better is 8...Ra8+/–) 9.Ba5+– Bg7 (9...Nc6 10.Bb6+–) 10.Bc7 (better is 10.Na3+–) 10...Bf6 (10...Nc6+–) 11.Bb8 Qd6 (11...g5+–) 12.Bd6 ed6 13.Na3 (better is 13.c4 Bd7 14.Nc3 Ne7+–) 13...Bd4 14.Qd4 Bc2 15.Qh8 Be4 16.Qg8 Ke7 17.Ng5 f6 (17...Kd7 18.Qf7 Kc6 19.Ne6 Kb6 20.Qc7 Ka6 21.e3 Ka7 22.Nb5 Ka6 23.Nd6 Bd3 24.Bd3 b5 25.Bb5) 18.Qf7 Kd8 19.Ne6 Kc8 20.Qc7 1–0. Trkn – guest2029, ICC, 2004.

2.c3 Bd7

3.e3 c6 4.Nf3 e6 5.d4 Be7 6.Bb2 Nf6 7.Bd3 0–0 8.Nbd2 a6 9.a3 b5 10.0–0 Bc8 11.Qc2 Bb7 12.Rfe1 Nbd7 13.Rac1 Bd6 14.Qb1 Re8 15.e4 de4 16.Ne4 Ne4 17.Be4 Rb8? (better is 17...Nf6!?=) 18.Bh7+/– Kf8 19.Bd3 c5 20.dc5 Nc5? (better is 20...Bf4 21.Be2 Bc1 22.Qc1 Bd5+/–) 21.bc5+– Bc5 (21...Bf4 22.Be2 Bc1 23.Bc1 Qc7+–) 22.Bf1 (better is 22.Ne5+–) 22...Bf3 23.gf3 Rc8 (23...Qh4 24.Qc2+–) 24.Bg2 Bf2?? (better is 24...Qd2 25.Rf1 Bd6+–) 25.Kf2 Qb6 26.Kf1 Qc6 (26...Kg8 27.Qe4+–) 27.Re2 Rcd8 28.Rce1 Rd5 (28...Kg8 29.Qe4 Qe4 30.Re4+–) 29.Qa1 (29.f4!? Red8+–) 29...Rh5 (29...Qc4 30.a4!+–) 30.Bc1 (30.c4!? Rh7 31.cb5 Qb5+–) 30...Qd6 (30...Rh2 31.f4 Qc4 32.Kg1+–) 31.Be3 (31.h3!? Kg8+–) 31...Qh2 32.Bg1 Qf4 33.Qc1 Qc1 (33...Qg3 34.Bd4+–) 34.Rc1 Rd5 35.Bd4 Rd4 (35...Rc8 36.Rce1+–) 36.cd4 e5 (36...Rd8 37.Rd2+–) 37.de5 Re5 (37...Rd8+–) 38.Re5 f6 39.Kf2 (better is 39.Rc8 Kf7 40.Rc7 Kg6 41.Rc6+–) 39...fe5 40.Re1 Ke7 41.f4 1–0. Fournier,Frederic (1915) – DAS76, Active blind, 2011.

3.e3 Bc6 4.Nf3 d4 (4...e6!?=) 5.cd4 Nf6 6.a3 e6 7.Bb2 a6 8.Nc3 Bd6 9.d3 Nbd7 10.Be2 Nb6 11.0–0 0–0 12.Qd2 Re8 13.Rac1 Kf8 14.Rfe1 Ke7? (better is 14...Kg8+/–) 15.e4+– e5 (15...Kf8 16.e5 Kg8+–) 16.de5 Be5 17.Ne5 Nfd7 (17...Bd7 18.Nd7 Nbd7 19.Nd5 Nd5 20.ed5+–) 18.Nc6 bc6 19.Nd1 Kf8 20.Ne3 Kg8 21.f3 (21.Nf5 f6+–) 21...Nf6 (21...a5 22.ba5 Na4 23.Ba1+–) 22.Bf6 (better is 22.Rc6!? Re6 23.Rec1 Ne8+–) 22...Qf6 23.Ng4 Qg6 24.Qc3 h5 (24...Qd6 25.Qc6 Qd4 26.Nf2+–) 25.Nf2 (25.Ne5 Qg5 26.d4 h4+–) 25...Rad8 (25...Re6 26.d4+–) 26.g3 (26.Qc6 Re6 27.Qc7 Qf6+–) 26...Kh8 (26...h4 27.Kg2+–) 27.Kg2 (27.Qc6 Re6 28.Qc7 Rc8+–) 27...f6 (27...Re6 28.d4+–) 28.Red1 (28.d4 a5 29.ba5 Na8+–) 28...Qh7 (28...Re6 29.d4+–) 29.d4 c5 (29...a5 30.ba5 Nd5 31.Qd2+–) 30.dc5 Rd1 31.Rd1 Nc8 32.Qa1 (32.Qd3 a5+–) 32...Na7 (32...h4 33.Ba6 Ne7 34.Qa2+–) 33.Rc1 (33.Rd7!? Nc6+–) 33...Qg8 (33...a5 34.Rd1 c6 35.Rd7+–) 34.c6 Re6 (34...Nb5 35.a4 Nd6 36.Ba6+–) 35.a4 (35.Bc4 Nc6 36.Qa2 Nd8+–) 35...Nc6 (35...Rc6 36.Rc6 Nc6 37.Qc3+–) 36.b5 (better is 36.Bc4!? Ne5 37.Be6 Qe6 38.Rc7 Kh7+–) 36...ab5 37.ab5 Ne7 (37...Ne5 38.Rc7 Qe8 39.f4+–) 38.Rb1 (better is 38.Bc4 Qc8 39.Be6 Qe6 40.Rc7 Ng6+–) 38...Ng6 (38...Nd5 39.Qd4 Nb6 40.Rc1+–) 39.b6! Rb6 (39...cb6 40.Bc4 Combination; 39...Rb6 40.Rc1 Combination) 40.Rb6 cb6 41.Qd1 (41.Qb2 h4 42.Qb6 Qe8+–) 41...Qb8 (41...h4 42.Bb5+–) 42.Nd3 (42.f4 h4 43.Qd5 Nf8+–) 42...Nf8 (42...Qe8 43.Qb3+–) 43.Qb1 (43.Nf4 Qc8+–) 43...Nd7 (43...h4 44.Nf4+–) 44.Nb4 (44.Qb5 Ne5+–) 44...b5 (44...Qd6 45.Nd5+–) 45.Nc2 Nb6 (45...Ne5 46.Qb5 Qb5 47.Bb5+–) 46.Bb5 (46.Qb5 g6+–) 46...Qb7 47.Ne3 Qa8 48.Bd3 Nd7 49.Be2 Nf8 (49...Qa5 50.Qd1 Qa2 51.Kf2+–) 50.Qd1 Ng6 51.Qf1 Kh7 52.Qf2 Nf8 53.f4 (53.Nd5 Qe8+–) 53...Ne6 (53...Qe4 54.Bf3 Qe8 55.f5+–) 54.Bf3 (better is 54.Qf3 g6 55.f5 Ng7+–) 54...Nf4 (54...Nd4+–) 55.gf4 g5 56.f5 (56.fg5 fg5 57.Qc2 Kg8+–) 56...h4 (56...g4 57.Nd5 gf3 58.Qf3 Qg8 59.Kf2+–) 57.Bg4 (57.Ng4!? h3 58.Kh3 Qf8+–) 57...Qg8 (57...Qe4 58.Bf3 Qd3 59.Ng4 Qf5 60.Qe2 h3 61.Kh3+–) 58.h3 (58.Nd5 Qf8+–) 58...Qg7 (58...Qb8 59.Bf3+–) 59.Bf3 (59.Nd5 Qf8 60.Qb6 Kg7+–) 59...Qb7 (59...Qc7 60.Ng4 Kg7 61.e5 fe5 62.f6 Kf8 63.Bd5+–) 60.Ng4 Kg7 (60...Qf7 61.Qe2 Kg7 62.Qa6+–) 61.Qe2 (61.Nf6 Qe7 62.Nh5 Kh7+–) 61...Qe7 (61...Qb8 62.e5 fe5 63.f6 Kh8 64.Ne5+–) 62.e5 fe5 (62...Qc7 63.ef6 Kf8 64.Ne5+–) 63.Ne5 (63.f6 Qf6 64.Nf6 Kf6 65.Qa6 Ke7 66.Bg4 e4 67.Qe6 Kf8 68.Bh5 Kg7 69.Qf7 Kh8 70.Bg6 g4 71.Qf8) 63...Qe5 (63...Qf6 64.Qb2 Qf5 65.Qb7 Kf6 66.Ng4 Kg6+–) 64.Qe5 Kf7 (64...Kg8 65.Qe6 Kg7 66.Qe7 Kh6 67.Qf7 g4 68.Qg6) 65.Qe4 (65.Bd5 Kf8 66.Qf6 Ke8 67.Bc6) 65...g4 66.Bg4 1–0. Fournier,Frederic (1645) – yata490 (1850), Active, 2011.

3.e3 e5 4.d4 e4 5.Qb3 +=.

3.Bb2 Nf6

4.e3 c5 5.bc5+= e6 6.Qc2 (6.d4 b6+=) 6...Nc6 (6...Bc5!? 7.c4 dc4 8.Bc4 Bc6+=) 7.d4+= Rc8 8.Nf3 Be7 9.Bd3 (9.c4!?+=) 9...b6= 10.cb6 ab6 (10...Nb4 11.Qd1 Nd3 12.Qd3 Qb6 13.Qc2=) 11.Nbd2 (11.Qd1+=) 11...b5 (11...Nb4 12.Qb1 Nd3 13.Qd3=) 12.0–0 (12.Bb5 Nb4 13.Bd7 Qd7+/–) 12...b4 (12...Nb4 13.Qb1 Nd3 14.Qd3=) 13.cb4 (13.a3!?+/–) 13...Nb4+= 14.Qb1 Nd3 15.Qd3 Rc7 (15...Qa5 16.Nb3 Bb5 17.Rfc1 Rc1 18.Rc1+=) 16.Rac1 (16.Ba3 0–0+/–) 16...Rc1 17.Rc1 (17.Bc1?! Qa5 18.Qc2 0–0=) 17...Bd6 (17...Qa5 18.Ra1+=) 18.Rb1 (18.Ba3 Bc7+/–) 18...0–0 (18...Qa8 19.Bc3+=) 19.Nb3 (19.Ba3 Qe7 20.Bd6 Qd6+/–) 19...Qb8 20.h3 (20.Nc5 Bb5 21.Qc2 Bc4+=) 20...Ne4 21.Nbd2 (21.Nc5 Bc6+=) 21...Nd2 22.Nd2 Rc8 (22...Qa8 23.a3=) 23.Ba1 (better is 23.Ba3!? Qc7 24.Bd6 Qd6 25.Nb3+/–) 23...Qa8= 24.Nf3 (24.Rb6 Qa2 25.Rd6 Qa1 26.Nf1 Bc6=) 24...Rc7 (24...Qa2 25.Qf1+=) 25.a3 (25.Ng5 g6 26.Qd2 Ra7+=) 25...Ba3 26.Bb2 Bb2 (26...Bd6 27.Ne5+=) 27.Rb2= Qc8 28.Rb1 Rc1 29.Rc1 Qc1 30.Kh2 g6 31.g3 Ba4 32.Kg2 Qd1 33.Qd1 Bd1 34.Nd2 Bb3?? (better is 34...Bc2=) 35.Nb3+– Kf8 36.Nc1 Ke7 37.h4 f6 38.Kf1 e5 39.de5 fe5 40.Ke2 Ke6 41.f3 d4 (41...e4 42.Nb3+–) 42.ed4 ed4 43.Kd2 Kd5 44.Ne2 (44.Kd3!? Ke5+–) 44...Kc4 0–1. Fournier,Frederic (1925) – marques (1990), Active Blind, 2008.

4.e3 e5!? +=.

4.e3 e6 5.Nf3 Bd6 6.d4 Nc6 7.Bd3 Qe7 8.Qc2 0–0–0 (8...e5 9.de5 Ne5 10.Ne5 Qe5 11.a3+=) 9.Nbd2 (9.b5 Na5+=) 9...Rdg8 (9...e5 10.b5 e4 11.bc6 Bc6 12.Be2 ef3 13.Nf3=) 10.0–0 (10.b5 Nb8+/–) 10...h5 (10...e5 11.de5 Ne5 12.Rfe1=) 11.h3 (better is 11.b5!? Nd8 12.c4+/–) 11...g5 12.Rfe1?? (better is 12.b5 Nd8 13.c4=) 12...g4–/+ 13.hg4 hg4 (13...Rg4?! 14.b5 Nb8 15.c4=; 13...Ng4?! 14.b5 Nd8 15.c4+=) 14.Nh2?? (better is 14.Ne5 Ne5 15.de5 Be5 16.c4–+) 14...Bh2 (14...Rh2!? 15.b5 Na5 16.Qa4–+) 15.Kf1 Ne4! 16.Ne4 (16.Ne4 de4 Combination; 16.Be4 de4 Combination) 16...de4 17.Be4 f5 18.Bf3 (18.Bd3 Bd6 19.b5–+) 18...gf3 19.gf3 Bd6 (better is 19...Nb4!? 20.Qb3 Nd3 21.Reb1–+) 20.Ke2 Rg7 (20...Rh2 21.b5 Na5 22.c4–+) 21.Rg1 Rg1 22.Rg1 e5 23.Rc1 (23.b5 Nd8–+) 23...e4 (better is 23...ed4 24.b5 Rh2 25.Kd1–+) 24.fe4 fe4 25.Qe4 (25.Rg1–+) 25...Qe4 0–1. Fournier,Frederic (1925) – TheKiIIer (1865), Active Blind, 2008.

3.e3 e6

4.Nf3 b6 5.d4 Nc6 6.Bd3 Nf6 7.Nbd2 g6 (7...a5 8.b5 Na7 9.Rb1+=) 8.0–0 Bg7 9.Bb2 (9.e4 de4 10.Ne4 a5+/–) 9...0–0+= 10.a3 a5 11.Qc2 ab4 12.ab4 Ra1 13.Ra1 Qe7? (13...Re8 14.b5 Ne7 15.Ne5+/–) 14.Re1?? (better is 14.b5 Na5 15.Ba3+–) 14...Bc8 15.e4 de4 16.Ne4 Ne4 17.Be4 Bb7 18.Rd1 Nd8 19.Bb7 Nb7 20.Ra1 Nd6 21.Rd1 Re8 22.h3 Kh8 23.Re1 f6 24.Qe2 e5 25.de5 fe5 26.Ne5?? (better is 26.c4 e4 27.Bg7 Kg7 28.c5 bc5 29.bc5+=) 26...Be5?? (26...Qe5 27.Qe5 Re5 28.Re5 Be5 29.Kf1–+) 27.Qe5? (better is 27.c4 Bb2 28.Qe7 Re7 29.Re7–/+) 27...Qe5–+ 28.Re5 Re5 29.c4 (29.c4 Nc4 30.Be5 Ne5 31.b5–+). Fournier,Frederic (1820) – henry96 (1785), Active blind, 2011.

4.Nf3 Be7 5.Bb2 Nf6 6.d4 0–0 7.Bd3 b6 8.Nbd2 a6 9.Qc2 c6 (9...Bb5 10.0–0=) 10.0–0+= b5 11.a3 g6 12.Rfe1 Ne8 13.e4 f6 14.ed5 ed5 15.Nf1 Ng7 16.Ng3 f5 (16...Bg4 17.Be2+=) 17.a4+/– ba4 18.Ra4 (18.Ne5!?+/–) 18...c5+= 19.Raa1 cd4 (19...c4!? 20.Be2 f4+=) 20.Nd4+/– Bb5?? (better is 20...f4 21.Nge2 Bc8+/–) 21.Nb5 (better is 21.Bb5!? Bf6+–) 21...Nc6 22.Nd4 White prepares b5 22...Nd4 23.cd4 Rb8 (23...f4 24.Nh1+–) 24.b5 (better is 24.Re5!? Rb4 25.Ba3 Rb7 26.Rd5 Qb8+–) 24...ab5 25.Bb5 (25.Qb3 f4 26.Ne2 b4+–) 25...Ne6?? (better is 25...Rb5 26.Ne2 Re8=) 26.Bc4 (26.Bc6 Nc7+–) 26...dc4 (26...f4 27.Nf1 Qc8+–) 27.Qc4 (better is 27.Re6 Rf7+–) 27...Rc8?? (better is 27...Rb2 28.Re6 Rb4+/–) 28.Qe6+– Rf7 29.Rac1 Rc1 30.Rc1 Kf8 (30...Bf8+–) 31.Rc8 Kg7 (31...Kg8 32.d5 Qf8 33.Rf8 Bf8 34.d6 Bd6 35.Qd6+–) 32.Rd8 (32.d5 Bf6 33.Rd8 Bb2+–) 32...Bd8 33.d5 Kf8 34.Ba3 (better is 34.d6 f4 35.d7 Rd7 36.Qd7 Be7 37.Bg7 Kf7 38.Ne4 g5 39.Nd6 Kg6 40.Qe6 Kg7 41.Nf5 Kf8 42.Qe7 Kg8 43.Qe8) 34...Re7 35.Be7 (35.Qd7 h5 36.Qd8 Kg7 37.Qe7 Kh6 38.Qf8 Kg5 39.Bc1 Kg4 40.Qb4 f4 41.Qf4) 35...Be7 36.d6 1–0. Fournier,Frederic (1810) – sopenco (1750), Active blind, 2011.

3.e3 Nf6

4.Bb2 e6 5.a3 Bd6 6.Nf3 a6 7.Be2 Bc6 8.d4 b6 9.0–0 Nbd7 10.Bd3 Qb8 11.Nbd2 Bb7 12.Qc2 (12.c4 dc4 13.Nc4 0–0+=) 12...h6 (12...c5 13.bc5 bc5 14.a4=) 13.Rfe1 (13.c4 dc4 14.Bc4 c5 15.bc5 bc5+=) 13...Qa7 (13...c5 14.bc5 bc5 15.c4 dc4 16.Bc4 cd4 17.ed4+=) 14.h3 0–0–0 (14...0–0 15.c4 dc4 16.Bc4+=) 15.e4 (better is 15.c4!? dc4 16.Nc4+/–) 15...de4+= 16.Ne4 Ne4 17.Be4 Be4 18.Qe4 Nf6 19.Qc2 Rhe8 20.Re2 Rd7 21.Rae1 Red8 22.Ne5 Be5 23.de5 Ne8 24.Bc1 Qb7 25.Rd2 Rd2 26.Bd2 f6 (26...Qd5!? 27.Bc1 Qd3=) 27.ef6+/– gf6 28.Be3 (28.Re6 Qd5 29.Re7 Qd2 30.Qd2 Rd2 31.Re8 Kb7+/–) 28...f5 (28...h5 29.c4+=) 29.Rd1 (29.Bh6!? Qc6 30.Qb3+–) 29...Rd1 30.Qd1 Nd6 31.Qc1 (31.Qe2 b5 32.Bh6 Qd5+/–) 31...Kd7 32.Qd2 Qc6 33.Bd4 Ke8 (33...h5 34.Qe2+=) 34.Qe3 Kf7 (better is 34...Nc4 35.Qh6 Na3 36.Qh8 Kd7+=) 35.Qf3?? (better is 35.Qh6 Ke7 36.Bf6 Kd7 37.Qg7 Kc8 38.Qg8 Ne8 39.c4+/–) 35...Qf3–/+ 36.gf3 Kg6 (36...Nb5 37.Be5–/+) 37.Kg2 (37.Be5 b5+=) 37...Nf7 (37...Nc4 38.a4–/+) 38.Kg3? (better is 38.f4+=) 38...c6?? (better is 38...e5!? 39.Be3 f4 40.Bf4 ef4 41.Kf4 b5–+) 39.a4 (39.Bb6 Ne5+=) 39...c5 (better is 39...b5!? 40.ab5 cb5+=) 40.bc5+= bc5 41.Be3 (41.Bc5 Ne5+=) 41...Nd6 (better is 41...c4+=) 42.f4?? (better is 42.Bc5!? Nc4 43.f4+=) 42...Nb7 (better is 42...Ne4!? 43.Kf3 Nc3 44.Bc5 Na4–/+) 43.Kf3 Kf7 44.a5? (44.Ke2!?=) 44...Kg6 (44...Ke7 45.c4 Kd7 46.Ke2 Na5 47.Bc5 Nc4 48.Kd3–+) 45.c4 (45.Ke2!?–/+) 45...h5 46.Kg2 Kf7 47.Kf3 Ke7 (47...Na5 48.Bc5 Nc4 49.Ke2–+) 48.Kg2? (better is 48.Ke2+=) 48...Kd7–+ 49.Kf3 Kc6 50.Kg2 1–0. Fournier,Frederic (2025) – Curriaqui (2050), Active Blind, 2008.

4.Nf3 e6 5.Bb2 Be7 6.d4 0–0 7.Bd3 c6 8.Qc2 b5 9.Nbd2 a6 10.0–0 Ne8? (10...a5!?=) 11.a4 (11.Bh7 Kh8 12.Bd3 a5+/–) 11...ba4 (11...h6 12.a5+/–) 12.Ra4 (12.Bh7 Kh8 13.Ne5 a5 14.Ra4 c5 15.Ra5 Ra5 16.ba5 Nf6+–) 12...Bf6 (12...c5 13.Ra2 c4 14.Bh7 Kh8=) 13.Raa1 g6 14.Rfe1 Nc7 15.e4 de4 16.Ne4 Re8 17.Nf6 Qf6 18.Ne5 Re7 (18...Nd5 19.Bc1+–) 19.Nd7 (better is 19.c4!? Qg5 20.Ra5+–) 19...Nd7+/– 20.c4 Qg7?? (better is 20...Rb8+/–) 21.d5+– Qf8 22.dc6 (better is 22.d6!? Ree8 23.Qc3 e5 24.dc7 Qd6+–) 22...Nb8 23.b5 ab5 24.Ra8 Na8 25.cb5 Nc7 26.Ra1 (better is 26.Qc3 f6 27.Qf6 Qf6 28.Bf6 Re8+–) 26...Nb5 (26...Nd5+–) 27.Bb5 Qe8 (27...Rc7 28.Be5 Rc8 29.c7+–) 28.Bf1 (28.Ra8 Qc8 29.Qc5 Rc7+–) 28...f5 (28...Qc8 29.Qc3 e5 30.c7 Qc7 31.Qc7 Rc7 32.Be5+–) 29.c7 Nc6 30.Bb5 (better is 30.Be5 Rf7+–) 30...Kf7 (30...Rc7 31.Ra6 Qd7 32.Bc6 Qd8+–) 31.Bc6 Qc6 32.Qc6 1–0. Fournier,Frederic (1790) – motley (1930), Active blind, 2011.

4.Nf3 e6 5.d4 Be7 6.Bd3 0–0 7.Bb2 c6 8.Qc2 a6 9.Nbd2 b5 10.a3 Ne8? (10...Bd6 11.0–0+=) 11.0–0 (11.Bh7 Kh8 12.Bd3 Nf6+/–) 11...Bf6? (11...h6 12.Ne5+=) 12.h3 (better is 12.Bh7!? Kh8 13.Bd3+–) 12...g6 13.Rfe1 Bg7 14.e4 de4 15.Ne4 f5 (15...Nf6 16.a4+/–) 16.Ng3 (16.Nc5!? Nc7+–) 16...Nc7 17.Rad1 Nd5 18.Ne5 Be5 (18...a5 19.Bc1+/–) 19.de5 (19.Re5 a5+/–) 19...Bc8 20.Ne4?? (better is 20.Rd2+/–) 20...fe4–/+ 21.Be4 Nd7 (better is 21...Qg5–/+) 22.Bf3?? (better is 22.Bg6!? Qe7 23.Be4+=) 22...N7b6 (22...Rf3 23.c4 Nf4 24.Qe4 Nh3 25.gh3 Qg5 26.Kf1–+) 23.c4 (better is 23.Be2–+) 23...Nc4 24.Bd5 (24.Bd4 a5 25.Be2 Na3–+) 24...cd5 25.Bd4 (25.Rd3 Bb7–+) 25...Rb8 (25...Na3!? 26.Qe2–+) 26.Bc5 Bb7 (better is 26...Rf5–+) 27.Bf8 Qf8 28.f4? (28.Qc3 a5!–+) 28...Qf7 (28...Qf4 29.Qc3–+) 29.Kh1 (29.Rd4 Na3 30.Qb3 Nc4–+) 29...Rc8 (29...Qf4 30.Qd3–+) 30.Qb3 (30.Qc1–+) 30...Qd7 (better is 30...Qf4 31.Kg1–+) 31.Rd3 (better is 31.Rd4–+) 31...Na3?? (better is 31...d4 32.Kh2 Rf8–+) 32.Qa3+= d4? (better is 32...Rc4!?+=) 33.Red1 Bd5 34.Qb2 Rf8 35.Rd4 Rf7 (35...g5 36.fg5 Rf5 37.g6 hg6 38.R4d2+–) 36.Kh2 Re7 37.g3 Qb7 38.R1d2 Kg7 39.Rc2 Bc4 (39...Rc7 40.Rc7 Qc7 41.Rd3+–) 40.Qc3 Bd5 41.Qc5 Rc7?? (41...Rf7+–) 42.Qc7 Qc7 43.Rc7 Kh6 (43...Kg8 44.g4 Kf8 45.f5+–) 44.Rd1 (44.Rd5 ed5 45.e6 g5 46.e7 gf4 47.gf4 a5 48.e8Q ab4 49.Qe6 Kh5 50.Rh7) 44...Bc4 45.Rc1 (45.Rdd7 g5 46.Rh7 Kg6 47.g4 gf4 48.Rcg7) 45...Bd5+– 46.R7c3 (better is 46.Rf7!? g5+–) 46...Bc4 (46...g5 47.Rc7 gf4 48.gf4+–) 47.Rc4 bc4 48.Rc4 (48.Rc4 Kg7 49.Rc7 Kf8 50.Rh7+–) 1–0. Fournier,Frederic (1755) – werojackson (1910), Active blind, 2011.

4.Nf3 e6 5.d4 Be7 6.Bd3 0–0 7.Nbd2 b6 8.Bb2 a5 9.a3 ab4 10.ab4 Ra1 11.Qa1 Bc8 12.0–0 Bb7 13.Qb1 (13.Qa7 Qc8+=) 13...Nc6 14.Qc2 Qa8 15.Ra1 Qb8 16.Re1 Qc8 17.e4 de4 18.Ne4 Ne4 19.Be4 Nd8 (19...Kh8 20.Bh7 g6 21.Bg6 fg6 22.b5+–) 20.Bb7 (better is 20.Bh7!? Kh8 21.Be4+–) 20...Nb7 21.Ra1 Nd6 22.Re1 Qb7 23.Ne5 Ra8 24.Qe2 Bf6 25.Ra1 Ra1 26.Ba1 Be5 27.de5 Nc8 28.Qb2 (28.c4 Ne7+=) 28...Qa7 (28...Qe4!? 29.Qc1 Qe5–/+) 29.h3 c5 30.bc5 bc5 31.c4 (31.Qb1 c4 32.Qd1 h6+=) 31...Qb6 (31...h6 32.Qc3 Nb6 33.Bb2–/+) 32.Qb6 (better is 32.Qb5 Qb5 33.cb5+=) 32...Nb6–/+ 33.Bc3 Nc4 34.Kh2 (34.Kf1 Kf8–/+) 34...g6 (better is 34...Nb6 35.Kg3 Nd5–+) 35.Be1? (35.Kg3 Nb6–/+) 35...Nb6?? (better is 35...Ne5!? 36.Bd2–+) 36.f4 (better is 36.Kg3!?–/+) 36...Nd5–+ 37.Kg3 c4 38.Kh2 (38.Kf3 c3–+) 38...c3 (worse is 38...Nf4 39.g4–+) 39.Bc3 (39.g4 c2 40.Bd2 Nb4–+) 39...Nc3 40.g4 (40.Kg3 f6!–+) 40...Nd5 (better is 40...Ne2 41.Kg2 Nf4 42.Kf2 Nd3 43.Ke3 Ne5 44.g5–+) 41.Kg3 f5 42.gf5 (42.ef6 Nf6 43.Kf3–+) 42...gf5 43.h4 Kf7 44.h5 Nc3 45.Kh4 Nd1 (45...Kg7 46.Kg5–+) 46.Kg5 Ne3 47.h6 Ng4 48.Kh5 Ne3 49.Kg5 Nd5 0–1. Fournier,Frederic (1825) – sopenco (1970), Active blind, 2011.

2.c3 Bf5

3.Bb2 Bb1 4.Qb1 Nd7 (4...e5 5.e4=) 5.e4 e6 (5...Ngf6 6.ed5 Nd5 7.d4=) 6.a4 (6.Bb5 Ngf6 7.ed5 Nd5=) 6...c5 (6...Ngf6 7.ed5 ed5 8.Bb5=) 7.f4 (7.ed5!? ed5 8.Qd3=) 7...cb4=+ 8.e5 (8.ed5 ed5 9.cb4 Qe7 10.Ne2 Qb4=+) 8...bc3 9.Bc3 Nc5 (better is 9...Rb8!?–/+) 10.Bb5 Ke7 (better is 10...Nd7!?=) 11.Bb4+/– b6 12.a5 Rc8 (12...d4!? 13.Nf3 Qd5+/–) 13.d4+– Qc7 14.Ne2 f6 15.ef6 Kf6 16.f5?? Ne4= 17.ab6 Qb6 18.Ba5 Qd6 19.0–0 ef5= 20.Qd3 Nh6 21.Bd2 g5?? 22.Ra6+– Ke7 23.Rd6 Nd6 24.Bg5 Kf7 25.Nf4 Ng4 26.Nd5 Rg8 27.h4 h6 28.Bd2 Rb8 29.Rf5 Nf5 30.Qf5 Nf6 31.Qf6# 1–0. ifairclough – quikeagle, net–chess.com, 2002.

3.Bb2 Qd7 4.e3 e6 5.Nf3 Bd6 6.d4 (6.c4 Nf6= (6...Bb4?? 7.Bg7 dc4 8.Bc4+–)) 6...Nc6 7.Bd3 Bd3 8.Qd3 Nge7 9.Nbd2 h5 (9...a5 10.b5 Na7 11.a4=) 10.0–0= g6 11.a3 Nf5 12.g3 (12.c4!?+=) 12...a6 13.e4 de4 14.Ne4 Nfe7?? (14...0–0–0 15.c4 Be7 16.d5 ed5 17.cd5+= (worse is 17.Bh8 de4 18.Qd7 Rd7=)) 15.Nd6 (better is 15.Nf6 Kd8 16.Nd7 Kd7 17.c4+–) 15...Qd6+= 16.Rfe1 Qd7 17.Re3 Nf5 18.Re2 0–0 19.Rae1 Nd6 20.Kg2 (20.Ne5 Ne5 21.de5 Qb5 22.Qb5 Nb5+/–) 20...Ne7 (20...b5 21.Bc1+=) 21.Qd2 (21.d5 Ndf5 22.c4 ed5+=) 21...Rad8 (21...Qc6 22.Qc2=) 22.Qc1 (22.Ne5 Qb5+=) 22...b6 (22...Qc6 23.Qc2=) 23.Kf1 (23.Ne5 Qc8+=) 23...Ndf5 24.Nd2 c5 (24...h4 25.Ne4 Kg7 26.g4+/–) 25.dc5 bc5 26.Ne4 cb4?? (26...Qc6 27.bc5 f6 28.Kg1+=) 27.cb4 (better is 27.Nf6 Kg7 28.Nd7 Rd7 29.ab4+–) 27...Nd5+= 28.Qa1 Qa7 29.Kg1 Kh7 30.Nd2 Nb6 31.Nf1 (31.Bf6 Rd3+=) 31...Rc8 32.Rc1 Rc1 33.Qc1 Rd8 34.Rc2 Nd5 35.Qa1 Nde7 36.Bg7?? (better is 36.Rd2 Nd5 37.Ne3=) 36...Ng7–+ 37.Ne3 Ngf5 38.Nf5 Nf5 (38...gf5?! 39.Qe1–+) 39.Qc1 Nd4 40.Rc7 (40.Qe3 a5 41.Rc4 ab4 42.Rb4 e5–+) 40...Qb8 (better is 40...Qa8 41.Qf1 Qf3–+) 41.Rc8?? (41.Rf7 Kg8 42.Qc7 Qc7 43.Rc7–+) 41...Rc8 (41...Rc8 42.Qe3 Qb7–+) 0–1. Fournier,Frederic (1970) – L1P5T1Q52T2P1R3 (2070), Active, 2009.

3.Bb2 e5 4.Nf3 =+.

3.d3 Nc6 4.Bf4 (4.Nf3 Qd6=) 4...e6 (4...e5 5.Bg3 a6 6.Nf3=+) 5.Nf3 (5.b5 Nce7=+) 5...Qd7 (5...Bd6 6.Bd6 cd6 7.b5=+) 6.Qd2 (6.g4 Bg6= (< 6...Bg4 7.b5 Bf3 8.bc6 Qc6 9.ef3+=)) 6...0–0–0 (6...Bd6 7.Bd6 cd6 8.Qg5=+) 7.Ne5 (7.Qe3=) 7...Qe7 (7...Ne5 8.Be5 Ne7 9.Qe3–/+) 8.Na3 (8.Nc6 bc6 9.Bg5 Nf6=) 8...f6 (better is 8...Ne5 9.Be5 f6=+) 9.Nc6+/– bc6 10.Qb2 (10.Be3 Kb7+=) 10...e5 11.Bg3 (11.Be3 Kb7+=) 11...Nh6 (11...h5 12.f3=) 12.Rb1 (12.Nc2 Qd7=) 12...Ng4 (better is 12...Bg6=) 13.b5?? (better is 13.Nc2+=) 13...d4?? (better is 13...Qa3 14.Qa3 Ba3 15.bc6 Rd6–+) 14.bc6+– Qd6 15.Qb7# 1–0. Martin Gunia – Bitworm, mySchach.de, 2004.

3.d3 e5 4.Nf3 =+.

3.e3 c6 4.Bb2 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.c3).

3.Nf3 Bb1 4.Rb1 e6 5.d3 Be7 6.e4 de4 7.de4 Qd1 8.Kd1 b6 9.Bd3 c5 10.e5 cb4?? (better is 10...Nd7+/–) 11.Be4+– (11...bc3 12.Ba8+–; 11.cb4?! Nd7+/–) 1–0. miehnekort – handa92, Yahoo, 2005.

3.Nf3 Nd7 4.d4 +=.

3.Nf3 e6 4.d3 c6 (4...Nd7 5.Nbd2=) 5.Nbd2= Be7 (5...Nf6 6.Qc2=) 6.e4 de4 7.de4 Bg6 8.e5 (8.Ne5 Nf6 9.Ng6 hg6=) 8...Qd7 (8...a5 9.b5=) 9.Be2+= Bd8 (9...a5 10.ba5 Ra5 11.0–0+=) 10.Nc4 (10.0–0 Ne7+=) 10...Bc7 (10...Qd1 11.Bd1 Bc7 12.Be2+=) 11.Nd6+/– Bd6 12.ed6 Nf6 13.Ne5 (13.Qd4 a5+/–) 13...Qd8 14.Ng6 hg6 15.Bg5 0–0 (15...Nbd7 16.0–0+/–) 16.0–0 Qd7 17.Bf6 gf6 18.Qd3 Rd8 19.Rfd1 Qe8 (19...a5 20.Qf3 Kg7 21.b5+/–) 20.c4 Nd7 21.c5 (21.Qc3 e5+/–) 21...b6 (21...a5 22.Qd4+/–) 22.Qe3+– Kg7 (22...Rab8 23.Bf3 Ne5 24.Be4+/–) 23.Bf3 Rac8 24.Rac1 b5 (24...Ne5 25.Be2+–) 25.a4! a6 (25...ba4 26.Ra1 Decoy) 26.Ra1 Ne5 27.Be2 Rd7 (27...Qh8 28.Ra3+–) 28.f4 Nc4 29.Bc4 bc4 30.Qc3 (30.Qd4 Rb8 31.Qc4 Qc8+–) 30...Qh8 (30...Rb7 31.Qc4 Qd7 32.Rab1+–) 31.Qc4 Qh4? (31...Ra8+–) 32.Qa6 Rh8 (32...Rdd8 33.Qf1+–) 33.h3 Qf4 34.Qc6 Rhd8 (34...Rdd8 35.Rab1 Rb8 36.d7+–) 35.b5 Qe3 (35...Ra7 36.Qf3 Qe5 37.Qf2+–) 36.Kh1 (36.Kh1 Ra7 37.b6+–) 1–0. marekt – dadeo, ICC, 2003.

3.Qa4 c6

4.c4 dc4–/+ 5.b5 a6 6.bc6 Nc6 7.Qc4 Rc8 8.Nf3?? (8.Qa4 Qd4 9.Qd4 Nd4 10.Na3–+) 8...Nf6 (better is 8...Nb4 9.Qc8 Qc8 10.Na3–+) 9.Nh4?? (better is 9.Bb2–/+) 9...Be6 (better is 9...Nb4! 10.Qc8 Bc8–+) 10.Qf4 g6 (better is 10...Nd5!? 11.Qg5 Nd4–+) 11.Bb2 Bg7 12.g4? (12.Qa4 b5 13.Qd1 Nd4–+) 12...Rg8 (better is 12...Nd5 13.Bg7 Nf4 14.Bh8 Nb4–+) 13.g5?? (better is 13.Nc3 Ng4 14.Qg3–+) 13...Nd5 14.Qf3 (14.Bg7 Nf4 (14...Rg7?! 15.Qa4–+) 15.Bb2 Qd5–+) 14...Bb2 15.Bg2 (15.e3–+) 15...Nd4 16.Qd3 Rc1 0–1. chessnirvana – spaceAllan, Live Game Caissa's Web, 2004.

4.e3 Nf6 5.b5 cb5 6.Qb5 Nbd7 7.Qb7? (better is 7.Nf3+=) 7...Rb8–+ 8.Qa7 Bb1 9.Ne2 e6 10.Nd4 Bc5 11.Qa4 Be4 12.Nc6 Qc7?? (better is 12...Ra8 13.Qe4 Qc7–+) 13.Nb8= Qb8 14.f3 Bg6 15.Bb5 0–0?? 16.Bd7+– Bd3 17.Ba3?? Ba3 18.Qa3 Nd7 19.Kf2 Ne5 20.Qb3 Qa7 21.Rab1? Bc4 22.Qb7 Qb7 23.Rb7= h5 24.Rhb1 Ba2+= 25.Ra1 Bc4 26.Rba7 g5 27.Ra8 Nd3 28.Kg1 f5 29.Rf8 Kf8 30.Ra8 Kf7 31.Ra7 Kg6 32.h3 g4 33.f4 e5 34.Ra6?? Ba6–+ 35.Kh2 ef4 36.hg4 fg4 37.ef4 Nf4 38.Kg3 Kg5 39.Kf2 Bd3 40.g3 h4 41.gh4 Kh4 42.Ke3 g3 43.Kf3 g2 44.Kf2 Kh3 45.Kg1 Ne2 46.Kf2 g1Q 47.Kf3 Qg3 0–1. maddoxdb – genpel, gameknot.com, 2011. (=1.c3 d5 2.b4 Bf5)

4.Nf3!? =+.

3.d4 e6

4.Na3 a5 5.Qa4 Nd7 6.b5 =+.

4.Na3 Nd7 5.Bf4 Nb6 (5...Bd6 6.Bd6 cd6 7.c4=+) 6.f3 (6.Nb5!? Bd6 7.Nd6 cd6 8.e3=) 6...Bd6=+ 7.Qd2 (7.Bd6 Qd6 8.e3 e5=+) 7...Nf6 (7...Qh4 8.g3 Bf4 9.Qf4 (9.gh4? Bd2 10.Kd2 Nf6–+) 9...Qf4 10.gf4–/+) 8.g4 (8.Bd6 Qd6 9.e3 e5–/+) 8...Bg6 (8...Bg4 9.fg4 Ne4 10.Bg5 Qg5 11.Qg5 Ng5 12.Bg2–+) 9.h4 (9.Bd6 Qd6 10.g5 Nfd7–/+) 9...h6 (9...a5 10.Bd6 cd6 11.b5=+) 10.h5 (10.Bd6 Qd6 11.e3 a5–/+) 10...Bh7 11.Nh3 (11.Nb5 Nc4 12.Qc1 Qe7=+) 11...Bf4 (11...a5 12.Bd6 cd6 13.ba5 Ra5 14.Qb2–/+) 12.Qf4=+ Nfd7 (12...c6!?=+) 13.Nb5= Qh4?? (better is 13...0–0 14.g5 a6=) 14.Nf2+– Qd8 15.Nc7 Ke7 16.Na8 Qa8 17.Nh3 Nc4 18.g5 Na3 19.Rc1 Nc2 20.Kf2 Na3 21.g6 fg6 22.hg6 Bg6 23.Qh4 Kd6?? 24.Nf4 Bh7? 25.Bh3 Re8? 26.Qh5 g5 27.Nd3 Bd3 28.ed3 Rh8 29.Qf7 Nb5?? 30.Qe6 (30...Kc7 31.Qd7 Kb8 32.Qb5+–) 1–0. Flip4 – lions1, Live Game Caissa's Web, 2007.

4.a4 a6 5.Nd2 Bd6 6.a5 Nf6 7.Ngf3 h6 8.Qa4 Qd7 9.Qb3 0–0 10.Ne5 Be5 11.de5 Ne4 12.Ne4 Be4 13.Bf4 Nc6 14.e3 Ne7 15.f3 Bh7 16.Rd1 c6 17.c4 Ng6 18.Bg3 Qe7 19.Be2 Rad8 20.0–0 dc4 21.Qc4 Rd1 22.Rd1 Rd8 23.Rd8 Qd8 24.Bd3 (24.Qc5 Nf8+/–) 24...Ne7 (24...b5 25.ab6 Qb6+/–) 25.e4 Bg6 26.Bf2 Bh7 27.Bb6 Qd7 28.Qd4 Qd4 29.Bd4 Ng6 30.g3 Ne7 31.Bc5 Nc8 32.Kf2 g5 (32...f5 33.ef6 gf6 34.f4+–) 33.Ke3 f5 34.ef6 Kf7 35.Bd4 Bg6 36.Be5 Bh7 (36...Ke8 37.f4+–) 37.h3 Na7 (37...Bg8 38.f4+–) 38.Kd4 (better is 38.f4 gf4 39.gf4 Ke8+–) 38...Nb5 (38...Bg6+–) 39.Kc5 Na3 (39...Bg6 40.Kb6+–) 40.Kb6 Nb5 41.Kb7 Nd6 (41...h5+–) 42.Bd6 Kf6 43.Ba6 Bg8 44.e5 (better is 44.Bd3 g4+–) 44...Kf5 45.Bd3# 1–0. marekt – guest470, ICC, 2003.

4.Bf4 Nf6 =+.

2.c3 Nf6

3.a3 g6 4.d3 Bg7 5.Bb2 a5 6.Nd2 b6 7.g3 Bb7 8.Bg2 Nbd7 9.e3 0–0 10.Ngf3 ab4 11.ab4 Ra1 2.Ba1 e6 13.0–0 Qe7 14.Qb3 Ra8 15.c4 dc4 16.Nc4 Ne8 17.Bg7 Ng7 18.d4 Bd5 19.Qc3 Nf6 20.Nce5 Ne4 21.Qc1 Qb4 22.Qc7 b5? 23.Qf7+– Kh8 24.Qc7 Rf8 25.Ng5?? Nd6?? 26.Bd5 ed5 27.Nc6 Qc4 28.Qd6 h6 29.Qf8# 1–0. mzs78 – zukertortjh (1675), kurnik, 2012.

3.Na3 e6 4.Nf3 a6 5.g3 Be7 6.Bh3 0–0 7.0–0 Nc6 8.Re1 (8.d4 Bd6=+) 8...e5 9.Bc8 Rc8 10.Qc2 e4 11.Nd4 (11.Nh4!?–/+) 11...Nd4–+ 12.cd4 Bb4 13.Rb1 (13.Qb3 c5 14.Nc2 Qe7–/+) 13...c5–+ 14.dc5 (14.Qb3 Qa5–+) 14...Bc5 15.Rb7? (15.Qb2–+) 15...Bf2! 16.Kf2 Rc2 17.Nc2 Qc8 18.Rb2 Qh3 (18...Qh3 19.Rh1 Rc8–+) 0–1. apeat – elrohir (2100), net–chess.com, 2003.

3.a4 d4 4.Bb2 e5 5.a5 Be7 (5...a6 6.Nf3 Nc6 7.cd4 ed4 8.Qa4=+) 6.Nf3 c5 (6...dc3 7.Nc3 Nbd7 8.b5=) 7.Ne5= Qd5 (7...dc3 8.Qa4 Nbd7 9.dc3=) 8.f4 (8.Qa4 Nbd7 9.Nf3 d3+/–) 8...Be6 (8...Ne4 9.Nf3=) 9.Qa4 (9.bc5 0–0+/–) 9...Bd7 (better is 9...Nfd7 10.bc5 Bh4 11.Kd1 Qb3 12.Qb3 Bb3 13.Kc1 dc3 14.Nc3 Nc5+–) 10.Qa2 (better is 10.Nd7 Nbd7 11.bc5+/–) 10...Qa2=+ 11.Ra2 0–0 (better is 11...dc3!? 12.Nd7 Kd7 (< 12...cb2 13.Nc5 Nc6 14.Rb2+/–) 13.dc3 cb4=) 12.bc5 dc3 13.Nc3 Bc5 14.Ba3 Rc8 15.e3 b6? 16.Bb5 Bb5+/– 17.Nb5 Ba3 18.0–0 Bc5= 19.d4 a6 20.ab6?? Bb6–+ 21.Nd6 Rc3 22.Kf2 Nd5 23.Ng4? h5 24.e4 Nb4 25.Ra4 Bd4 26.Ke2 Rc2 27.Kd1 N8c6 28.Ne5 Be5 29.fe5 Rg2 30.Nf7 Na2 31.Rc4 Rb8 32.Nh6 gh6 33.Rc1 Rd8 34.Ke1–+ Nc1 35.Rf2 Nd3 36.Kf1 Rf2 37.Kg1 Rb8 38.e6 Rb1 0–1. ifairclough – quikeagle, net–chess.com, 2002.

3.Qa4 c6 4.b5 Bd7 5.e3 g6 (5...e5 6.d4 cb5 7.Bb5 Bb5 8.Qb5 Qd7 9.Qe2–/+) 6.Nf3 Bg7 7.Bb2 0–0 8.h3 (8.Qb3 Qc7=+) 8...b6 9.Be2 c5 (9...cb5!? 10.Bb5 Bb5 11.Qb5 Nbd7=+) 10.c4= e6 11.cd5 ed5 12.Qc2 (12.0–0 a6=) 12...c4 13.a4 a6 14.d3 ab5 15.ab5 Ra1 16.Ba1 Bf5 (16...Bb5 17.dc4 Bc4 18.Bc4 dc4 19.Qc4=) 17.0–0 Nbd7 18.g4 cd3 19.Bd3 Be4 20.Nfd2 Nc5 (20...Bd3 21.Qd3 Nc5 22.Qe2=+) 21.Be4 (21.Bf6 Qf6 22.Be4 de4 23.Ne4 Qf3+=) 21...de4 22.Bd4 Qc7 23.Qc4 Rc8 24.f3?? Qb7?? 25.f4 Ne6–/+ 26.Qb4? Nd5–+ 27.Qb3 Nd4 28.ed4 Bd4 29.Kg2 Ne3 30.Kg3 Nf1 31.Nf1 e3! 32.Qd3 Rd8 33.Ne3 Qh1 34.Kh4 Bf6 35.g5 Rd3 36.gf6 Re3 37.Kg5 Qh3 38.Nd2 Qf5 39.Kh4 Rh3# (39...Qf4#) 0–1. martin78ns – dorazka, kurnik, 2012.

3.Qa4 Qd7 4.b5 a6 5.e3 ab5?? (better is 5...c6=+) 6.Qa8+– Nc6 7.Qa3 (better is 7.Bb5 e5+–) 7...e5 8.Qb2 Qg4 9.Qb5 Bd6 10.a4 0–0 11.Nf3 d4 12.cd4 ed4 13.Ba3 de3 14.de3 Ba3 15.Na3 Ne4 16.h3 Qg6 17.Nc4 Qf6 18.Nce5 Nc3?? 19.Qc5 Ne4 20.Qc2 Ne5 21.Qe4?? Nf3=+ 22.Qf3 Qa1 23.Qd1 Qa4?? 24.Qa4+– 1–0. martin78ns – sjaksj (1700), kurnik, 2012.

3.Bb2 e5 4.Qb3 e4 5.e3 Be7 6.d3 0–0 7.Nd2 Nc6 8.Rd1 (8.de4 Ne4 9.Rd1 Nd2 10.Rd2 Be6=) 8...Be6 (8...Bg4!? 9.f3 ef3 10.Ngf3 Bd6–/+) 9.de4 de4 10.Ne4? (better is 10.Qc2 Bf5 11.Nc4=+) 10...Bb3–+ 11.Nf6 Bf6 12.Rd8 Rad8 (12...Nd8?! 13.ab3 a5 14.b5–/+; 12...Bd8?! 13.ab3 Bf6 14.b5=+) 13.ab3 a5 (13...Nb4!? 14.Nf3 a6–+) 14.b5 Ne5 15.Nf3 Nd3 16.Bd3=+ Rd3 17.Ke2 Rfd8 18.Nd4+/– Bd4 19.Kd3 Be5+/– 20.Ke2 Rd5 21.c4+– Rd7?? 22.Be5 f6 23.Bd4 b6 24.Rc1 (24.Rc1 Kf7 25.Rd1+–) 1–0. Milly – wac04, Live Game Caissa's Web, 2004.

3.d3 a5 A) 4.Qa4 b5 (4...Bd7 5.b5 c6 6.bc6 Nc6 7.Bg5 Ra7 8.Na3 Ra6 9.Rb1 Rb6 10.Nb5+=; 4...Qd7 5.b5 c6 6.Na3 e5 7.Nf3 Bd6 8.e4 0–0 9.Be2 Qc7 10.0–0+=) 5.Qb5 Bd7 6.Qc5 e6 7.Qe3 ab4 8.a3 Ra4 9.Qg3 Na6 10.Nf3+=; B) 4.b5 B1) 4...Nbd7 5.Ba3 (5.e3 e5 6.Nf3 Bd6 7.Ba3 Ba3 8.Na3 Qe7 9.Nb1 0–0 10.Be2+=; 5.Bg5 e5 6.Nf3 Bd6 7.e3 0–0 8.Be2 c6 9.bc6 bc6 10.0–0+=; 5.Nf3 e5 6.e3 Bd6 7.Ba3 Ba3 8.Na3 Qe7 9.Nc2 0–0 10.Rb1+=) 5...e5 6.Bf8 Nf8 7.Nf3 Ng6 8.e3 0–0 9.Be2 a4 10.d4+=; B2) 4...e5 5.Nd2 (5.Bg5 h6 6.Bh4 Bd6 7.e3 0–0 8.Nd2 Bd7 9.Rb1 Re8 10.a4+=; 5.d4 Nbd7 6.e3 Be7 7.c4 dc4 8.Bc4 Nb6 9.Be2 Bb4 10.Bd2+=; 5.Nf3 Bd6 6.Bg5 h6 7.Bh4 Nbd7 8.e3 0–0 9.Be2 c6 10.Bg3+=; 5.Qa4 Bd6 6.Nf3 Nbd7 7.Ba3 Nb6 8.Qh4 Ba3 9.Na3 Qe7 10.Nb1–/+) 5...Bd6 6.e4 0–0 7.Ngf3 Nbd7 8.ed5 Nd5 9.Ne4 N7f6 10.Nd6+=.

3.d3 Nbd7 A) 4.Nf3 e5 5.e4 de4 6.de4 Ne4 7.Bd3 Nef6 8.0–0 Bd6 9.Re1 a5 10.Bf4–/+; B) 4.Bg5 e5 5.Nd2 (5.Nf3 Bd6 6.e4 h6 7.Bf6 Nf6 8.ed5 Nd5 9.d4 ed4 10.Qd4+=; 5.e4 h6 6.Bf6 Nf6 7.Nf3 Bd6 8.ed5 Nd5 9.d4 ed4 10.Qd4+=; 5.e3 Bd6 6.Nf3 h6 7.Bh4 a5 8.b5 0–0 9.Be2 c6 10.Bg3+=) 5...h6 6.Bh4 c5 7.bc5 Bc5 8.Ngf3 0–0 9.d4 Bd6 10.Bg3+=; C) 4.Nd2 C1) 4...a5 5.b5 (5.Qa4 e5 6.Nb3 b5 7.Qa3 a4 8.Bg5 Bd6 9.e3 0–0 10.d4–/+; 5.ba5 e5 6.e4 Ra5 7.Ngf3 Ba3 8.Nb3 Ra8 9.Ba3 Ra3 10.Qc1+=) 5...e5 6.e4 Bc5 7.Ngf3 0–0 8.Be2 c6 9.bc6 bc6 10.Rb1=; C2) 4...e5 5.Ngf3 Bd6 6.e4 a5 7.b5 0–0 8.ed5 Nd5 9.Qc2 a4 10.Nc4 +=.

3.e3 c5 4.bc5+= Nc6 5.Nf3 e5 6.d3 (6.d4!?+=) 6...Bc5+= 7.Be2 0–0 8.0–0 d4 9.ed4 ed4 10.cd4 (10.Re1 Re8+=) 10...Bb6 (better is 10...Bd4!? 11.Nd4 Qd4–+ (11...Nd4?! 12.Be3+=)) 11.Bb2 Bg4 12.Nbd2 Nd4 13.Nd4 Be2?? (better is 13...Bd4 14.Rb1 Bb2 15.Rb2 Be2 16.Qe2 Re8=) 14.Ne2+– (14.Qe2?! Bd4 15.Ne4 Re8=) 14...Ng4 15.Ng3 (15.Nf3 Re8+–) 15...Qh4?? (better is 15...Nf2 16.Rf2 Bf2 17.Kf2 Qb6 18.d4 Qb2+=) 16.h3 (better is 16.Nf3 Qd8 17.Qb3+–) 16...Qh3?? (16...Nf2 17.Rf2 Qg3+–) 17.gh3 Nf2 18.Rf2 1–0. Fournier,Frederic (1900) – korly (1800), Active blind, 2011.

3.e3 e6 4.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.c3).

3.e3 Be6 4.Bb2 c6 5.Nf3 Nbd7 6.d4 Rc8 7.Bd3 b6 8.0–0 c5 9.bc5 bc5 10.Nbd2 Ne4 (better is 10...c4!? 11.Bc2 Bg4=) 11.Ne4+/– de4 12.Be4 cd4 13.cd4 Nf6 14.Qd2?? (14.Bd3 Rb8 15.Rb1 Qa5+–) 14...g6?? (better is 14...Ne4 15.Qd3 Nd6–+) 15.Bd3+– Bg7 16.Rfc1 Rc1 17.Rc1 Qb6 18.Rb1 (18.Ba3 Qd8+–) 18...Bd5 (18...Ba2 19.Re1+/–) 19.a3 Bb3?? (19...Bf3 20.gf3 0–0 21.Qc2+/–) 20.Rc1 (better is 20.Ba1+–) 20...e6 21.h3 0–0 22.Qc2?? (better is 22.Qb4+–) 22...Bc2–+ 23.Rc2 Qb2 (better is 23...Qb3 24.Rd2 Rc8–+) 24.Rb2+– Nd5 25.Rb1 f5? (25...Rc8 26.Rb7 a5 27.a4 Rc1 28.Kh2+/–) 26.Ne1 (better is 26.Ng5 Rc8 27.Ne6+–) 26...h5 27.g3 g5 28.Kg2 g4 29.hg4 hg4 30.Nc2 e5?? (30...Rc8 31.Kf1+/–) 31.Rd1 (31.Bc4 Rd8 32.Rb5 Kf7+–) 31...Re8?? (better is 31...Nb6!?+/–) 32.de5 (32.Bc4 Rc8 33.Bd5 Kf8+–) 32...Be5? (32...Nc3 33.Bc4 Kh7+–) 33.Be2 (better is 33.Bc4 Rc8 34.Bd5 Kg7+–) 33...Bg7?? (33...Nc3 34.Bc4 Kf8 35.Rd7+/–) 34.Ne1 (34.Rd5!? Rc8 35.Bd3 Rc3 36.Bf5 Kf8+–) 34...Be5?? (34...Nf6 35.Bc4 Kf8 36.Nc2+/–) 35.Nd3 (better is 35.Rd5 Kf7 36.Ra5+–) 35...Bg7 36.Ne1 Ne3?? (36...Be5 37.Rd5 Kf7+–) 37.fe3+– Re3 38.Rd2 (38.Bc4 Kh7+–) 38...Kh7 (38...Be5!? 39.Kf2 Ra3 40.Rd8 Kg7+/–) 39.Nd3 a5 40.Nf4 Re8? (better is 40...Be5 41.Bd3 Kh6+–) 41.Rd1 Bh6 (41...Bb2+–) 42.Rd3 (better is 42.Rd7 Bg7 43.Bd3+–) 42...Bf4+= 43.gf4?? (better is 43.Bg4 fg4 44.gf4+/–) 43...Re4?? (better is 43...Re2 44.Kg3 Kg6–+) 44.Kf2 (better is 44.Bd1!? Rf4 45.Rd5+–) 44...Re8?? (better is 44...Rf4 45.Kg2 Re4 46.Rd7 Kg6+=) 45.Re3 (45.Re3 Re3 46.Ke3+–) 1–0. Fournier,Frederic (2010) – delbrasil (1785), Active Blind, 2008.

3.f3 e5–/+ 4.e3 Bd6 5.Qa4 Nfd7 (5...Bd7 6.b5–/+) 6.Ba3 0–0 7.g3 Qe7 8.Bd3 Nb6 9.Qc2 f5 10.c4 (10.Nh3 Be6–/+) 10...dc4 11.Bc4 Nc4 12.Qc4 Be6 13.Qb5 (13.Qc3 Qf7–+) 13...a5 14.Qb7 Nd7 (14...ab4?! 15.Qa8 ba3 16.Qa4=) 15.ba5 (15.Bb2 ab4 16.Qb5 Ra2 17.Ra2 Ba2–+) 15...Ba3 16.Qc7 (16.Na3 Qa3 17.Qc7–+) 16...Rac8 (better is 16...Bb2 17.Ne2–+) 17.Qb7 Rc1 18.Kf2 Qd6 19.Kg2 Qd3 20.f4 (20.Nh3 Qe2 21.Nf2 Rh1 22.Na3 Ra1 23.Nb1–+) 20...Qf1# 0–1. Mokolato – pierre (1945), internet, 2006.

3.Nf3 c6 4.g3 Bf5 5.Bg2 Nbd7 6.0–0 Qc7 7.d4 Bg6 8.Bf4 Qb6 9.Nbd2 e6 10.a4 a5 11.ba5 Qa5 12.Qb3 b6 13.c4 dc4 (better is 13...Bb4!?=) 14.Nc4+/– Qa7 (14...Qa6 15.Nfd2 Nd5 16.Bd6+=) 15.Nh4 (15.Nfe5 Be4 16.Nd7 Qd7 17.Be4 Ne4 A) 18.Nb6?! Qb7+–; B) 18.Qb6?! Nc3 19.Rfe1 Nd5+/– (19...Ra4?? 20.Ra4 Na4 21.Qa6+–; 19...Na4? 20.Qb3+–); C) 18.Qc2 Qd4 19.Rad1+–) 15...Be4 16.Be4 Ne4 17.Nf3 Ndf6? (better is 17...b5!? 18.Qc2 Ng3 19.Bg3 bc4 20.Qc4 Qa6 21.Qa6 Ra6+=) 18.Nb6+– Rd8 19.a5 Bd6 20.Bd6 Nd6 21.Ne5 Qc7 22.a6 Nb5+/– 23.Nec4 Nd4+= 24.Qb2 Nb5 25.Rfd1 0–0 26.Rd8 Rd8 27.h4 Nd5 28.Nd5 ed5 29.Ne3 c5?? 30.Nf5 f6?? 31.Qb5 Qe5 32.Qb6 Qa1 33.Kg2 Re8 34.Nd6 Qe5?? 35.Qc5 Rd8? 36.a7 Qa1 37.Qc7 Ra8 38.Qf7 Kh8 39.Nb5 Qa4?? 40.Qb7 (40...Qe4 41.Kg1+–) 1–0. LuckyMiki – chessleon, internet, 2007.

3.Ba3 e5

4.d4 Nbd7 5.e3 (5.Qd3 a6 6.Nd2 Bd6 7.c4 0–0 8.c5 Be7 9.Bb2 e4 10.Qc3+=; 5.Qa4 c6 6.Nf3 b5 7.Qd1 Bd6 8.Nh4 0–0 9.Nf5 Bc7 10.Bc1–/+) 5...Bd6 6.b5 Ba3 7.Na3 0–0 8.Nf3 e4 9.Nd2 a6 10.ba6 +=.

4.e3 a6 5.d4 (5.Be2 Bd6 6.Nf3 e4 7.Nd4 0–0 8.0–0 b6 9.d3 c5 10.bc5+=; 5.Nf3 e4 6.Nd4 Bd6 7.Be2 0–0 8.0–0 b6 9.f4 c5 10.bc5–/+) 5...Nc6 6.Be2 e4 7.Qb3 Bg4 8.Bg4 Ng4 9.Nh3 Qh4 10.Bc1 +=.

4.e3 Bd6 5.d4 (5.b5 c5 6.bc6 Nc6 7.Bd6 Qd6 8.d4 0–0 9.de5 Ne5 10.Be2+=) 5...Bg4 6.Be2 Be2 7.Ne2 Qd7 8.0–0 e4 9.Nd2 Qb5 10.Bb2 +=.

4.e3 Nbd7 5.d4 (5.Be2 e4 6.d4 ed3 7.Bd3 Ne5 8.Be2 Ne4 9.Nf3 Nf3 10.Bf3+=; 5.Nf3 e4 6.Nd4 Ne5 7.Be2 Nd3 8.Bd3 ed3 9.0–0 c6 10.Nb3+=) 5...Be7 6.Nf3 e4 7.Nfd2 0–0 8.Be2 Nb6 9.b5 Ba3 10.Na3 +=.

4.e3 Be6 5.Nf3 (5.Be2 Bd6 6.Nf3 Qe7 7.Qa4 Nbd7 8.d4 c6 9.b5 c5 10.dc5+=; 5.d4 Nbd7 6.Be2 Bd6 7.Nf3 e4 8.Nfd2 Qe7 9.0–0 0–0 10.Nb3+=; 5.Bb5 c6 6.Be2 Bd6 7.Nf3 Nbd7 8.0–0 0–0 9.Ng5 Bf5 10.d3–/+) 5...Bd6 6.b5 0–0 7.Bd6 Qd6 8.d4 e4 9.Ne5 c5 10.Be2 +=.

4.e3 Be7 5.Nf3 (5.Be2 Nbd7 6.Nf3 e4 7.Nd4 0–0 8.0–0 Ne5 9.b5 Re8 10.f3+=) 5...Bg4 (5...Nbd7 6.Bb5 e4 7.Nd4 0–0 8.0–0 Ne5 9.Be2 c6 10.d3+=) 6.Bb5 (6.h3 Bf3 7.Qf3 e4+= 8.Qg3 0–0 9.d3 Bd6 10.Qh4+=) 6...c6 (6...Nbd7 7.h3 Bh5 8.g4 c6 9.Bc6 bc6 10.gh5+=) 7.Ba4? (better is 7.Be2 e4 (7...Bd6 8.0–0 e4 9.Nd4 Be2 10.Qe2+=) 8.Nd4 Be2 9.Qe2–/+ 0–0 10.0–0+=) 7...e4–+ 8.h3 Bh5 (8...ef3?! 9.hg4 fg2 10.Rg1–/+) 9.g4 Ng4 (9...ef3?! 10.gh5 Nh5 11.Qf3=) 10.hg4 Bg4 11.b5 (11.Rg1 Bf3 12.Qc2–+) 11...Bf3 (11...ef3?! 12.bc6 Nc6 13.Qb3–+) 12.Qb3 (12.bc6 A) 12...Bh1?? 13.c7 Nc6 14.cd8Q (worse is 14.cd8N Kd8 15.Qh5 Ba3 16.Na3 f6+–; worse is 14.cd8B Kd8 15.Qh5 Ba3 16.Na3 Rc8+–) 14...Kd8 15.Qh5 Ba3 16.Na3+– (16.Qh1?! Bb2 17.Qh5 Ba1+=); B) worse is 12...Nc6 13.Qb3 Bh1 14.Qb7–+; C) 12...bc6 13.Be7 Ke7–+) 12...Bh1 13.bc6 bc6 14.Qb7 Ba3 (14...Nd7!? 15.Qc6 Rc8 16.Qd5–+) 15.Na3 0–0 16.Qa8 Bf3 17.d4 (17.Rb1 Qg5 18.d4 ed3 19.Rb8 Qg1 20.Kd2 Qf2 21.Kc1 Qg1 22.Bd1 Qe3 23.Kb2 Qb6 24.Rb6 Ra8 25.Rc6 Bd1 26.Kc1–+) 17...Qa5 18.Bd1 (18.Kd2 Qa4 19.Nc2–+) 18...Qc3 19.Kf1 Qa1 20.Kg1 (20.Nc2 Qd1 21.Ne1 Qe2 22.Kg1 Qe1 23.Kh2 Qf2 24.Kh3 Qg2 25.Kh4 Qg4) 20...Qd1 21.Kh2 Qh1 22.Kg3 Qg2 (22...g5 23.Qb8 Qg2) 23.Kh4 Qg4 0–1. Nehal,Ashok Shah – Himanshu,K (2070), 41th WchJ Goa IND, 2002.

4.e3 Bf5 5.d4 (5.Be2 a5 6.b5 Ba3 7.Na3 0–0 8.Nf3 Qd6 9.Nc2 Ne4 10.0–0+=; 5.Nf3 Bd6 6.b5 Bg4 7.Be2 a6 8.Bd6 Qd6 9.ba6 Na6 10.d4+=) 5...Nbd7 6.Be2 Bd6 7.Nf3 e4 8.Nfd2 Qe7 9.Qb3 Nb6 10.c4 +=.

4.Nf3 A) 4...Nbd7 5.e3 (5.d3 Be7 6.e3 0–0 7.Be2 Re8 8.0–0 Bd6 9.b5 Ba3 10.Na3+=; 5.b5 Ba3 6.Na3 a6 7.e3 e4 8.Nd4 ab5 9.Nab5 Nb6 10.Qb3–/+; 5.Qc2 c6 6.d4 e4 7.Nfd2 b5 8.Bc1 Bd6 9.a4 ba4 10.Qa4+=; 5.g3 c6 6.Bg2 Bd6 7.0–0 0–0 8.b5 c5 9.d4 Qe7 10.Bc1+=; 5.Qb3 Be7 6.b5 0–0 7.d4 e4 8.Nfd2 Nb6 9.Be7 Qe7 10.e3+=) 5...e4 6.Nd4 Ne5 7.Be2 Bd6 8.b5 Ba3 9.Na3 Bg4 10.f3+=; B) 4...Bd6 5.e3 (5.b5 Bg4 6.Bd6 Qd6 7.d4 Bf3 8.de5 Qe5 9.gf3 Nbd7 10.e3–/+) 5...e4 6.Nd4 0–0 7.Be2 Qe7 8.0–0 a5 9.Qa4 Bg4 10.b5+=.

3.a4 a5

4.b5 A) 4...Bf5 5.Nf3 (5.d3 e5 6.h3 Nbd7 7.g4 Be6 8.Bg2 Nc5 9.Nf3; 5.Bb2 e5 6.Nf3 Nbd7 7.c4 d4 8.e3 de3 9.fe3; 5.d4 Nbd7 6.Nf3 e6 7.Bf4 Nh5 8.Be3 Bd6 9.g3; 5.Ba3 Nbd7 6.Nf3 e5 7.Bf8 Kf8 8.Na3 Qe7 9.g3; 5.Na3 Nbd7 6.Nf3 e5 7.Nc2 Bd6 8.Ne3 Be6 9.g3) 5...Nbd7 6.Nh4 Be6 7.Na3 g6 8.Nc2 Bh6 9.Nd4; B) 4...Nbd7 5.Nf3 (5.Ba3 e5 6.Nf3 Ba3 7.Na3 0–0 8.g3 Qe7 9.Bg2; 5.d3 e5 6.Nf3 Bd6 7.g3 0–0 8.Nbd2 Qe7 9.Bg2; 5.Qc2 e5 6.Nf3 e4 7.Nd4 Bc5 8.g3 0–0 9.Ba3) 5...e5 6.g3 Be7 7.Bg2 0–0 8.0–0 e4 9.Nd4; C) 4...g6 5.Nf3 (5.d3 Nbd7 6.Nd2 Bg7 7.Ngf3 0–0 8.Ba3 Re8 9.e3) 5...Bg7 6.d3 Nbd7 7.Nbd2 0–0 8.Ba3 Re8 9.e3; D) 4...e6 5.Nf3 (5.d4 Bd6 6.Nf3 0–0 7.Qc2 Nbd7 8.Ba3 b6 9.Bd6; 5.d3 Nbd7 6.Nf3 Bd6 7.Ba3 Qe7 8.Bd6 Qd6 9.Nbd2) 5...Nbd7 6.d4 Bd6 7.Ba3 0–0 8.Bd6 cd6 9.Nbd2; E) 4...h6 5.Qc2 (5.Nf3 Nbd7 6.d4 e6 7.Qc2 Bd6 8.Ba3 Qe7 9.Bd6; 5.Ba3 Nbd7 6.Nf3 e5 7.e3 Ba3 8.Na3 0–0 9.Be2; 5.d3 e5 6.Nf3 Bd6 7.Nbd2 0–0 8.g3 e4 9.de4; 5.Bb2 Nbd7 6.Nf3 e5 7.g3 e4 8.Nd4 Bc5 9.Na3; 5.d4 Nbd7 6.Nf3 e6 7.Nbd2 Bd6 8.g3 0–0 9.Bh3) 5...Nbd7 6.Nf3 e5 7.e3 e4 8.Nd4 Ne5 9.d3; F) 4...e5 5.d3 (5.d4 Nbd7 6.Nd2 ed4 7.cd4 Bb4 8.Ngf3 0–0 9.Ba3; 5.Nf3 Bd6 6.Qc2 e4 7.Nd4 0–0 8.Ba3 c5 9.bc6; 5.Ba3 Bd6 6.Nf3 0–0 7.d4 e4 8.Ne5 Nbd7 9.g3; 5.Qc2 Bd6 6.c4 0–0 7.Ba3 dc4 8.e3 g6 9.Nf3; 5.Bb2 Nbd7 6.Nf3 Bd6 7.g3 0–0 8.Bg2 Nb6 9.Na3; 5.Na3 Bd6 6.Nf3 0–0 7.g3 Nbd7 8.Bg2 Nc5 9.0–0) 5...Bd6 6.Nf3 0–0 7.Nbd2 Nbd7 8.g3 e4 9.de4.

4.Nf3 A) 4...e6 5.ba5 (5.b5 Nbd7 6.d4 Bd6 7.Ba3 Ba3 8.Na3 0–0 9.g3; 5.Ba3 Nbd7 6.ba5 Be7 7.Be7 Qe7 8.Na3 Nc5 9.Qb1; 5.Qb3 Bd6 6.Ba3 0–0 7.b5 Nbd7 8.d4 Re8 9.e3) 5...Nc6 6.Na3 Be7 7.Nb5 0–0 8.Qc2 Ra5 9.d4; B) 4...Na6 5.Ba3 (5.ba5 c6 6.d4 Qa5 7.Qb3 g6 8.Nbd2 Bg7 9.Ba3; 5.b5 Nc5 6.d4 Nce4 7.Ne5 g6 8.f3 Nd6 9.Qb3) 5...e6 6.ba5 Nc5 7.Bb4 Be7 8.d4 Nce4 9.Nbd2; C) 4...Bf5 5.b5 (5.Qb3 e6 6.Nd4 Bg6 7.d3 ab4 8.cb4 Na6 9.Bd2; 5.Na3 ab4 6.cb4 Na6 7.b5 Nc5 8.Nc2 e6 9.Ncd4; 5.d3 e6 6.ba5 Nc6 7.Na3 Bc5 8.Nb5 0–0 9.Nfd4; 5.ba5 Nc6 6.Na3 Ra5 7.Nb5 h6 8.Nbd4 Nd4 9.cd4; 5.Nh4 Be6 6.Na3 ab4 7.cb4 Nc6 8.b5 Na5 9.Nf3; 5.Nd4 Bg6 6.f4 Nc6 7.ba5 Ra5 8.e3 Nd7 9.Be2) 5...Nbd7 6.Nh4 Be6 7.d3 g6 8.Nd2 Bg7 9.Nhf3; D) 4...ab4 5.cb4 Na6 6.b5 Nc5 7.d4 Nce4 8.Ne5 c5 9.bc6; E) 4...g6 5.b5 (5.d3 Bg7 6.b5 0–0 7.Nbd2 Nbd7 8.Ba3 b6 9.Nb3; 5.Na3 Bg7 6.d4 0–0 7.Qb3 Ne4 8.b5 Be6 9.Ng5; 5.Qb3 Bg7 6.d3 0–0 7.Na3 ab4 8.cb4 Nc6 9.Bb2; 5.d4 Bg7 6.Bf4 0–0 7.Qb3 Nh5 8.Be3 Be6 9.Na3; 5.Bb2 Bg7 6.Na3 0–0 7.Qb3 Nbd7 8.Nc2 c6 9.e3) 5...Bg7 6.d3 0–0 7.Nbd2 Nbd7 8.g3 Ng4 9.d4.

3.a4 Nc6

4.Na3 A) 4...Ne4 5.Bb2 d4 6.Nf3 e5 7.b5 Bc5 8.e3 de3 9.de3; B) 4...g6 5.d3 (5.Nf3 Bg7 6.d3 0–0 7.Bd2 a6 8.b5 Na5 9.g3; 5.b5 Na5 6.d3 Bg7 7.Nf3 Qd6 8.g3 Ng4 9.Bd2; 5.Qb3 Bg7 6.Nf3 0–0 7.d3 a6 8.g3 Bg4 9.Bg2) 5...Bg7 6.Nf3 0–0 7.Bd2 Ng4 8.h4 d4 9.c4; C) 4...a5 5.b5 Ne5 6.d4 Ng6 7.Nf3 Bf5 8.Qb3 e6 9.g3; D) 4...e5 5.Nf3 e4 6.b5 ef3 7.bc6 bc6 8.ef3 Bd6 9.Bd3.

4.a5 a6 5.d4 (5.Na3 e5 6.Nf3 Bd6 7.b5 Na5 8.ba6 Ra6 9.Nb5; 5.Nf3 e5 6.d3 Bd6 7.g3 0–0 8.Bg2 e4 9.de4; 5.d3 e5 6.Nf3 Be7 7.Nbd2 0–0 8.Qc2 Re8 9.Bb2; 5.g3 e5 6.Bg2 Be7 7.Nf3 0–0 8.0–0 Bg4 9.h3; 5.e3 e5 6.Nf3 Bd6 7.Be2 0–0 8.0–0 Bf5 9.Na3; 5.Bb2 e5 6.Nf3 Bd6 7.d3 e4 8.de4 de4 9.Nd4) 5...e5 6.de5 Ne5 7.Bg5 (7.Nf3 Bd6 8.Qd4 Nc6 9.Qe3) 7...Be7 (7...Bd6 8.Bf6 Qf6 9.Qd5) 8.f4 (8.e3 Bf5+= (8...h6 9.Bf4) 9.Nf3; 8.Nd2 h6 9.Bf4) 8...Nc4 (8...Neg4 9.h3–+ (9.Qd4 h6–/+); 8...Nc6 9.Nf3) 9.Nd2? (better is 9.Bf6!? Bf6 10.e4+=; 9.Na3–+) 9...Ne3–+ 10.Qb3 Nfg4 11.Be7 Qe7 (11...Ke7?! 12.h3 Nf6 13.Kf2+=) 12.Nh3? (12.Ngf3 Be6–+) 12...Be6 (12...Nh2 13.Nf2 Nhf1 14.Nf1 Ng2 15.Kd2–+) 13.Qb2? (13.Ng5 Bf5 14.Ra2 0–0–0–+) 13...Bf5 14.g3?? (14.Rc1–+) 14...Nc2 15.Kd1 Nge3 16.Kc1 Na1 17.Qa1 Nf1 (17...Nf1 18.Rf1 Bh3–+) 0–1. opportunity (2205) – sanbarrett (2335), net–chess.com, 2010.

4.a5 g6 5.Nf3 (5.b5 Ne5 6.d4 Nc4 7.Nf3 Bg7 8.Nbd2 Nd6 9.e3; 5.d3 Bg7 6.Nf3 a6 7.Nbd2 0–0 8.Nb3 Qd6 9.Bd2; 5.d4 a6 6.Nf3 Bg7 7.Bf4 0–0 8.Nbd2 Bf5 9.h3; 5.a6 ba6 6.Nf3 Bg7 7.d4 0–0 8.Nbd2 e5 9.de5; 5.Bb2 a6 6.Nf3 Bh6 7.d3 0–0 8.Nbd2 e5 9.Nb3) 5...a6 6.d4 Bg7 7.Bf4 0–0 8.Nbd2 Nh5 9.Bg5.

4.b5 A) 4...Ne5 5.d4 (5.Nf3 Nf3 6.gf3 g6 7.d3 Bg7 8.Nd2 0–0 9.Ba3) 5...Nc4 6.Nd2 Nd6 7.Ngf3 g6 8.Qb3 a6 9.ba6; B) 4...Na5 5.Nf3 (5.d3 e5 6.Nf3 Bd6 7.Nbd2 0–0 8.Nb3 c5 9.Na5; 5.d4 Bf5 6.Nd2 e6 7.Ngf3 Bd6 8.g3 0–0 9.Bg2; 5.Ba3 Bg4 6.d3 e5 7.h3 Ba3 8.Na3 Bd7 9.Nf3) 5...Bf5 6.d3 e6 7.Nbd2 Bd6 8.Nb3 c5 9.g3.

4.d4 A) 4...e6 5.Nf3 (5.b5 Ne7 6.Nf3 Nf5 7.Nbd2 Bd6 8.e3 0–0 9.Bd3; 5.Nd2 Bd6 6.b5 Na5 7.Ngf3 0–0 8.e3 Ne4 9.Bd3) 5...Bd6 6.b5 Ne7 7.Nbd2 0–0 8.e3 a6 9.ba6; B) 4...a6 5.Nf3 (5.Nd2 e5 6.de5 Ne5 7.Ngf3 Bd6 8.Ne5 Be5 9.Ra3; 5.g3 g6 6.Nf3 Bg7 7.Nbd2 0–0 8.Bg2 Bf5 9.0–0; 5.Bf4 Nh5 6.Bd2 g6 7.Nf3 Bg7 8.Na3 0–0 9.b5; 5.Qb3 g6 6.Nf3 Bg7 7.g3 0–0 8.Bg2 Re8 9.Bf4; 5.Na3 Bf5 6.Nf3 Ne4 7.b5 Na5 8.Ng5 Nd6 9.Nf3; 5.Ba3 e5 6.b5 Na5 7.de5 Ba3 8.Na3 Ne4 9.e3) 5...g6 6.Ba3 Bg7 7.b5 Na5 8.Nbd2 0–0 9.Bb4; C) 4...g6 5.Nf3 (5.b5 Na5 6.Nd2 Bg7 7.Ngf3 0–0 8.Ba3 c6 9.e3; 5.Nd2 Bg7 6.b5 Na5 7.Ba3 0–0 8.Ngf3 Bf5 9.Bb4; 5.Bf4 Nh5 6.Bg5 Bg7 7.Nf3 0–0 8.Na3 Bf5 9.h3; 5.Bb2 Bh6 6.Nd2 0–0 7.Ngf3 Bf5 8.b5 Na5 9.e3; 5.Ba3 Bh6 6.Nf3 0–0 7.b5 Na5 8.Nbd2 Ne4 9.e3; 5.a5 a6 6.Nf3 Bg7 7.Bf4 Nh5 8.Bg5 0–0 9.Nbd2) 5...Bg7 6.b5 Na5 7.Nbd2 0–0 8.Ba3 Bf5 9.Bb4.

4.Nf3 A) 4...Qd6 5.d4 (5.Na3 a6 6.d3 g6 7.b5 Ne5 8.ba6 ba6 9.Rb1) 5...a6 6.Ba3 Qd7 7.Nbd2 e6 8.e3 Bd6 9.Bd3; B) 4...a6 5.Na3 (5.Ba3 Bg4 6.d4 e6 7.Nbd2 Bd6 8.b5 Ne7 9.ba6; 5.Bb2 e5 6.b5 ab5 7.ab5 Ra1 8.Ba1 e4 9.bc6; 5.e3 e5 6.Na3 e4 7.Nd4 Nd4 8.ed4 Bd6 9.Be2) 5...Qd6 6.d3 Bg4 7.h3 Bd7 8.Be3 e5 9.b5; C) 4...Bf5 5.Na3 (5.b5 Na5 6.Na3 e6 7.Nh4 Bd6 8.Nf5 ef5 9.g3) 5...e6 6.Nb5 e5 7.d4 a6 8.de5 ab5 9.ef6; D) 4...g6 5.b5 (5.d3 Bg7 6.b5 Na5 7.Nbd2 0–0 8.Nb3 Nb3 9.Qb3; 5.Qb3 a6 6.Na3 Bg7 7.Nc2 0–0 8.Ncd4 Qd6 9.d3; 5.Ba3 Bh6 6.b5 Na5 7.d3 0–0 8.Nbd2 Bd7 9.e3; 5.Na3 Ne4 6.Nb5 Bg7 7.Bb2 a6 8.Nbd4 Qd6 9.Qb3) 5...Na5 6.d3 Bg7 7.Nbd2 0–0 8.Ba3 c6 9.Nb3.

3.a4 Qd6

4.Ba3 A) 4...g6 5.Nf3 (5.b5 Qb6 6.Nf3 Bf5 7.d3 Nbd7 8.h3 e5 9.g4; 5.d3 Nbd7 6.Nf3 Bh6 7.Nbd2 0–0 8.b5 c5 9.bc6) 5...Bf5 6.b5 Qb6 7.d3 Nbd7 8.h3 e5 9.g4; B) 4...Bf5 5.Nf3 (5.b5 Qb6 6.Nf3 Nbd7 7.d4 g6 8.Nbd2 Bh6 9.e3 ; 5.d3 Qb6 6.Nf3 Nc6 7.b5 Na5 8.Nbd2 e6 9.Bf8; 5.e3 Nbd7 6.Nf3 e5 7.Be2 c6 8.c4 Be7 9.Nc3) 5...Nbd7 6.d3 g6 7.b5 Qb6 8.h3 e5 9.g4; C) 4...Bg4 5.h3 (5.d3 Nbd7 6.h3 Be6 7.Nf3 g6 8.b5 Qb6 9.Nbd2 ; 5.Nf3 Nbd7 6.d3 g6 7.b5 Qb6 8.Nbd2 e5 9.Qb3; 5.d4 Nbd7 6.Nd2 g6 7.h3 Bf5 8.Ngf3 Bh6 9.e3) 5...Bf5 6.Nf3 Nbd7 7.d3 Ne5 8.Nbd2 g6 9.g4; D) 4...Nbd7 5.Nf3 (5.d3 g6 6.Nf3 Bg7 7.Nbd2 c6 8.e3 0–0 9.d4 ; 5.b5 Qb6 6.Nf3 Nc5 7.d4 Nce4 8.Ne5 Nd7 9.f3) 5...g6 6.b5 Qb6 7.e3 e6 8.Be2 Ba3 9.Na3.

4.Na3 A) 4...a5 5.d4 (5.Nb5 Qb6 6.ba5 Ra5 7.Nf3 Ne4 8.e3 Nd7 9.Ba3 ; 5.ba5 c6 6.Nc2 Ra5 7.Nd4 Ne4 8.Ba3 Qf4 9.Ngf3) 5...ab4 6.Nb5 Qb6 7.cb4 Na6 8.Nf3 c6 9.Nc3; B) 4...c6 5.Nf3 (5.Qb3 Nbd7 6.Nf3 g6 7.d4 Bg7 8.g3 Ne4 9.Bg2) 5...Nbd7 6.g3 a5 7.d4 Ne4 8.Qb3 ab4 9.cb4; C) 4...a6 5.Nf3 (5.d3 c5 6.b5 Nbd7 7.Nf3 Ne5 8.ba6 ba6 9.Rb1 ; 5.Bb2 Nc6 6.Nf3 g6 7.e3 Bf5 8.b5 Ne5 9.Ne5; 5.e3 Nc6 6.Nf3 Bf5 7.Bb2 h5 8.Be2 h4 9.b5; 5.Qb3 g6 6.Nf3 Bg7 7.d4 0–0 8.g3 Ne4 9.Bf4) 5...Nc6 6.d3 Bg4 7.h3 Bd7 8.Be3 e5 9.b5.

4.d3 A) 4...Bd7 5.Nd2 (5.Nf3 Nc6 6.Nbd2 h6 7.Nb3 a5 8.b5 Ne5 9.Ba3 ; 5.Na3 a6 6.Nf3 Nc6 7.Qb3 e5 8.Be3 Be7 9.Bc5; 5.Ba3 Ng4 6.Nf3 Qh6 7.Qb3 e6 8.b5 Bd6 9.Nbd2; 5.Bd2 a5 6.b5 g6 7.Nf3 Bg7 8.g3 0–0 9.Bg2; 5.Qb3 a5 6.b5 Bg4 7.h3 Bf5 8.g4 Bg6 9.g5) 5...Nc6 6.Ngf3 g6 7.d4 Nd8 8.Ne5 Bg7 9.Ba3; B) 4...Nc6 5.Nf3 (5.Na3 a6 6.Nf3 Ne5 7.Nc2 Nf3 8.gf3 e5 9.Be3 ; 5.Nd2 Ng4 6.Ndf3 h6 7.h3 Nf6 8.Ba3 Ne5 9.Ne5; 5.Bd2 g6 6.Na3 a6 7.b5 Ne5 8.Nf3 Nf3 9.gf3) 5...g6 6.Na3 a6 7.g3 Bf5 8.Bg2 Bg7 9.Bf4; C) 4...h6 5.Nd2 (5.Na3 a6 6.Nf3 Nc6 7.g3 g5 8.Bg2 Bg7 9.b5; 5.Nf3 a6 6.g3 Nc6 7.Na3 g5 8.Bg2 Bg7 9.b5) 5...Nc6 6.Ngf3 Bg4 7.h3 Bh5 8.b5 Ne5 9.Ba3; D) 4...Bf5 5.Nf3 (5.Na3 a6 6.Nc2 e5 7.Ne3 Be6 8.Nf3 Nc6 9.Bd2 ; 5.Nd2 c5 6.bc5 Qc5 7.Nb3 Qc3 8.Bd2 Qc7 9.Nd4) 5...Nc6 6.Nbd2 g6 7.b5 Ne5 8.Qc2 c5 9.Ne5; E) 4...h5 5.Na3 (5.Nf3 Nc6 6.Na3 a6 7.g3 g6 8.Bg2 Bg4 9.0–0; 5.Nd2 Nc6 6.Ngf3 Bd7 7.Nb3 a5 8.b5 Ne5 9.Ba3; 5.Qb3 a5 6.Na3 ab4 7.Nb5 Qb6 8.cb4 c6 9.Qc3; 5.Ba3 Bg4 6.b5 Qb6 7.h3 Bf5 8.Nf3 Nbd7 9.Nd4; 5.Bd2 Nc6 6.Nf3 Bf5 7.Na3 a6 8.g3 Ne5 9.Ne5; 5.Bg5 Nc6 6.Nf3 Bg4 7.Nbd2 g6 8.h3 Bf5 9.Nb3) 5...a6 6.Nf3 Bg4 7.h3 Bf3 8.gf3 e6 9.Be3; F) 4...g6 5.Na3 (5.Nf3 Bg7 6.Na3 a6 7.g3 Nc6 8.Bf4 e5 9.Be3; 5.Ba3 Nbd7 6.Nf3 Bh6 7.Nbd2 0–0 8.b5 Qb6 9.e3) 5...a6 6.Nf3 Bg7 7.g3 Nh5 8.Bd2 Nc6 9.Bg2; G) 4...a5 5.b5 (5.Na3 ab4 6.Nb5 Qd8 7.cb4 c6 8.Nc3 Na6 9.b5; 5.ba5 Qc5 6.Nf3 Qa5 7.Na3 e5 8.Bd2 Nc6 9.Nb5) 5...Nbd7 6.Nf3 Nc5 7.Nbd2 g6 8.Nb3 Bg4 9.Ba3.

4.d4 A) 4...Bf5 5.Nf3 (5.Nd2 Nbd7 6.Ngf3 g6 7.h3 Bg7 8.g4 Be6 9.Bg2) 5...Nbd7 6.Nh4 Be6 7.g3 Qb6 8.a5 Qc6 9.a6; B) 4...Bg4 5.Nf3 (5.Nd2 Nbd7 6.h3 Bh5 7.Ngf3 e5 8.b5 0–0–0 9.g4; 5.h3 Bf5 6.Nf3 a6 7.Nbd2 Nbd7 8.e3 e5 9.Ba3; 5.Qd3 a5 6.b5 Nbd7 7.Nf3 g6 8.Ba3 c5 9.bc6; 5.Na3 a6 6.Nf3 Nbd7 7.Qc2 0–0–0 8.b5 e6 9.e3) 5...Nbd7 6.h3 Bf5 7.Nbd2 h5 8.Bb2 e6 9.Nh4; C) 4...Ne4 5.Qb3 (5.Nd2 Nc3 6.Qb3 Ne4 7.b5 Bf5 8.Ne4 de4 9.e3 ; 5.f3 Nf6 6.Na3 c6 7.g3 e5 8.de5 Qe5 9.Qb3; 5.Bb2 a5 6.f3 Nf6 7.Na3 c6 8.b5 Bf5 9.g4; 5.Qd3 Nc6 6.Nd2 Bf5 7.Nh3 f6 8.b5 Na5 9.Qf3; 5.Nf3 a5 6.b5 Bf5 7.Ba3 Qf6 8.Qb3 e6 9.Bf8) 5...Nc6 6.Nd2 Bf5 7.Ngf3 Nf6 8.Ba3 0–0–0 9.b5; D) 4...a5 5.ba5 (5.b5 Bf5 6.Nf3 Nbd7 7.Nbd2 g6 8.Ba3 Qe6 9.h3 ; 5.Ba3 ab4 6.Bb4 Qd8 7.Nd2 Nc6 8.Ngf3 Bf5 9.Ne5; 5.Nf3 ab4 6.cb4 Qb4 7.Bd2 Qb2 8.Nc3 Bf5 9.Ra2) 5...Qa6 6.Nf3 Qa5 7.Bf4 Ne4 8.Qb3 Nc6 9.e3.

4.Nf3 A) 4...a6 5.e3 (5.Ba3 Nbd7 6.e3 g6 7.c4 dc4 8.Nc3 b5 9.ab5; 5.d3 Nc6 6.Nbd2 Bf5 7.Ba3 Ne5 8.Nd4 g6 9.Nf5; 5.Na3 Nc6 6.d3 g6 7.b5 Ne5 8.Ne5 Qe5 9.d4; 5.d4 Bf5 6.g3 Nbd7 7.Bg2 e6 8.Nh4 Bg4 9.Qd3; 5.g3 a5 6.b5 Bg4 7.d4 Nbd7 8.Nbd2 e5 9.h3; 5.Bb2 Nc6 6.d4 Bf5 7.Nbd2 h5 8.b5 ab5 9.ab5) 5...Nc6 6.Ba3 Ne5 7.b5 Nf3 8.Qf3 Qb6 9.ba6; B) 4...Nbd7 5.d4 (5.Na3 a6 6.Nc2 g6 7.Ba3 Ne4 8.b5 Qf6 9.ba6 ; 5.d3 Ne5 6.Nbd2 a5 7.b5 Bd7 8.Ba3 Qe6 9.Nb3; 5.Bb2 Ne5 6.Na3 c6 7.Ne5 Qe5 8.Nc2 g6 9.e3; 5.Qb3 Ne5 6.Ne5 Qe5 7.d4 Qf5 8.c4 dc4 9.Qc4; 5.e3 a5 6.Na3 c6 7.Qb3 g6 8.Bb2 Bg7 9.Be2; 5.Qc2 a5 6.Na3 c6 7.b5 Nc5 8.d3 Bf5 9.Bd2) 5...g6 6.Na3 a6 7.g3 Ne4 8.Bf4 Qc6 9.Qb3; C) 4...h6 5.d4 (5.g3 Nc6 6.d4 e5 7.Na3 Bg4 8.Nb5 Qe7 9.de5; 5.Na3 a6 6.Qc2 g6 7.g3 Nc6 8.d3 Bg4 9.Bg2; 5.e3 Nc6 6.Na3 a6 7.Bb2 Bf5 8.Be2 g5 9.0–0; 5.Qc2 Nc6 6.Na3 a6 7.g3 Bg4 8.d4 g6 9.Bf4) 5...Bf5 6.g3 Nbd7 7.Bg2 Ne4 8.Qb3 g5 9.Nbd2; D) 4...a5 5.Ba3 (5.b5 Nbd7 6.d4 Ne4 7.Nbd2 Ndf6 8.Ba3 Qb6 9.Ne4; 5.ba5 Ra5 6.Ba3 Qd7 7.Bb4 Ra8 8.Na3 Nc6 9.e3; 5.Na3 ab4 6.Nb5 Qb6 7.cb4 e6 8.Qc2 Na6 9.e3) 5...Bg4 6.ba5 Qd8 7.h3 Bc8 8.e3 Nc6 9.Bb5; E) 4...g6 5.Na3 (5.g3 Bg7 6.d4 0–0 7.Bf4 Qc6 8.b5 Qb6 9.Nbd2 ; 5.d4 Bf5 6.g3 Nbd7 7.Bf4 Qe6 8.Bg2 Ne4 9.Qb3; 5.d3 Nc6 6.Na3 a6 7.b5 Ne5 8.ba6 ba6 9.Rb1; 5.e3 Bg7 6.Ba3 0–0 7.b5 Qd8 8.Qb3 a6 9.c4) 5...a6 6.g3 Bg7 7.d4 0–0 8.Qb3 Nc6 9.Bf4; F) 4...Bd7 5.Ba3 (5.d4 Nc6 6.Nbd2 h5 7.Ba3 Qf4 8.b5 Na5 9.e3) 5...Bg4 6.b5 Qb6 7.d4 e6 8.Bf8 Kf8 9.Nbd2; G) 4...Nc6 5.d4 (5.d3 Bf5 6.Nbd2 g6 7.d4 a6 8.Ba3 b5 9.e3; 5.e3 Bg4 6.Na3 a6 7.h3 Bf5 8.Bb2 g6 9.Nh4; 5.Na3 a6 6.d3 Bf5 7.Nc2 e5 8.Ne3 Be6 9.Bd2) 5...Bf5 6.Ba3 Qf4 7.b5 Na5 8.Nbd2 e6 9.e3.

3.a4 e5

4.Na3 A) 4...e4 5.d4 (5.Nh3 Nc6 6.d3 d4 7.b5 Ne5 8.Bf4 Ng6 9.Bg5; 5.e3 Nc6 6.Ne2 Be7 7.Nb5 a5 8.ba5 Bg4 9.Qc2) 5...a5 6.ba5 Be7 7.Nh3 0–0 8.Bf4 c6 9.Bd2; B) 4...a5 5.ba5 (5.Nf3 ab4 6.cb4 e4 7.Nd4 Na6 8.b5 Nc5 9.Nac2) 5...Nc6 6.Nf3 e4 7.Nd4 Be7 8.Nc6 bc6 9.g3; C) 4...Nc6 5.Nf3 (5.g3 e4 6.Nh3 a5 7.b5 Ne5 8.Nf4 Bc5 9.Bg2) 5...e4 6.b5 ef3 7.bc6 bc6 8.ef3 Bd6 9.Bd3.

4.d3 A) 4...Nc6 5.b5 (5.Nf3 Bd6 6.b5 Na5 7.Nbd2 0–0 8.Nb3 c5 9.Bg5; 5.Na3 Bd6 6.Nb5 Be7 7.d4 ed4 8.Nd4 0–0 9.Ngf3; 5.Nd2 Bd6 6.b5 Na5 7.Nb3 Nb3 8.Qb3 e4 9.e3; 5.Bb2 Bd6 6.b5 Na5 7.Nf3 0–0 8.Nbd2 e4 9.Nd4) 5...Na5 6.Nf3 Bd6 7.Nbd2 0–0 8.Nb3 c5 9.Bg5; B) 4...a5 5.b5 (5.ba5 Nc6 6.Nf3 Be7 7.d4 ed4 8.cd4 0–0 9.Nc3) 5...Bd6 6.Nf3 0–0 7.Nbd2 Nbd7 8.g3 Nc5 9.Bg2; C) 4...Bf5 5.Nf3 (5.h3 a5 6.b5 Nbd7 7.g4 Be6 8.Bg2 Nc5 9.Nf3) 5...Bd6 6.Na3 0–0 7.Nb5 Nc6 8.Nd6 cd6 9.g3; D) 4...Bd6 5.Nf3 (5.Na3 a6 6.Nf3 0–0 7.g3 Nc6 8.b5 ab5 9.Nb5; 5.Nd2 0–0 6.Ngf3 Nc6 7.b5 Na5 8.Nb3 c5 9.Bg5) 5...0–0 6.Na3 Nc6 7.Nb5 Be7 8.d4 e4 9.Ne5.

4.d4 ed4 5.Qd4–/+ (5.Ba3 dc3 6.Nc3 Nc6 7.Nf3 Bb4 8.Bb4 Nb4 9.e3; 5.b5 dc3 6.Nc3 d4 7.Na2 c5 8.e3 Bd6 9.ed4) 5...Nc6 6.Qd3 Bd6 7.Nf3 0–0 8.b5 Ne5 9.Ne5.

4.Nf3 e4 5.Nd4 Nc6 6.Nc6 bc6 7.g3 c5 8.Ba3 c4 9.Bg2.

3.a4 Bf5

4.Na3 A) 4...e5 5.Nf3 Nbd7 6.d3 a5 7.Qb3 c6 8.h3 h5 9.Nc2; B) 4...a5 5.Nf3 (5.ba5 e5 6.Nf3 Nc6 7.d4 Bd6 8.de5 Be5 9.Ne5 ; 5.Nc2 ab4 6.cb4 Bd7 7.a5 Nc6 8.d4 e5 9.de5; 5.b5 Nbd7 6.Nf3 e5 7.Nc2 Bd6 8.g3 0–0 9.Bg2) 5...ab4 6.cb4 e6 7.b5 Nbd7 8.Nc2 Bc5 9.Ncd4; C) 4...g6 5.Nf3 (5.d3 Nc6 6.Nf3 Bg7 7.h3 0–0 8.b5 Na5 9.g4; 5.Qb3 Nc6 6.Nf3 e5 7.d3 e4 8.de4 de4 9.Ng5; 5.Nb5 Bg7 6.Nf3 Nc6 7.h3 Ne4 8.Bb2 a6 9.Nbd4) 5...Nc6 6.b5 Na5 7.Nd4 Bd7 8.d3 Bg7 9.g3; D) 4...Nc6 5.Nf3 g6 6.Nc2 Ne4 7.d3 Nc3 8.Qd2 Bg7 9.b5; E) 4...e6 5.Nb5 (5.Nf3 a5 6.ba5 Nc6 7.Nb5 Ra5 8.h3 Be7 9.d4) 5...a5 6.ba5 Nc6 7.Nf3 Ra5 8.Nfd4 Bg6 9.Nc6; F) 4...d4 5.Bb2 (5.Qb3 Nc6 6.Nf3 d3 7.ed3 Bd3 8.Bd3 Qd3 9.Qc2) 5...a5 6.b5 dc3 7.dc3 Nbd7 8.Nf3 Nc5 9.Nd4; G) 4...Nbd7 5.Nc2 (5.Nf3 e5 6.d3 a5 7.Qb3 c6 8.h3 ab4 9.cb4; 5.d3 e5 6.Nf3 a5 7.Qb3 c6 8.h3 Qb6 9.Rb1; 5.h3 a5 6.Nf3 ab4 7.cb4 e5 8.Qb3 c6 9.d3; 5.g3 a5 6.Bh3 Bh3 7.Nh3 ab4 8.cb4 e5 9.Nc2; 5.Bb2 e5 6.Nf3 Be7 7.e3 0–0 8.Be2 a5 9.Nc2) 5...e5 6.Nf3 Bd6 7.Ne3 Be6 8.g3 a5 9.b5.

4.Bb2 A) 4...Nc6 5.Nf3 (5.d4 g6 6.Nf3 Bg7 7.Nbd2 0–0 8.h3 Qd6 9.b5; 5.e3 e5 6.b5 Na5 7.Nf3 Bd6 8.c4 0–0 9.cd5; 5.Na3 a5 6.b5 Ne5 7.Nf3 Nf3 8.gf3 e6 9.Nc2; 5.d3 e6 6.Nf3 Bd6 7.Na3 a6 8.Nc2 0–0 9.Ncd4) 5...e6 6.Na3 Be7 7.g3 0–0 8.Bg2 Ng4 9.h3; B) 4...e6 5.Nf3 (5.d3 a5 6.b5 Nbd7 7.Nd2 Bd6 8.Ngf3 0–0 9.g3) 5...Nc6 6.Na3 Bd6 7.Nb5 0–0 8.e3 e5 9.Be2; C) 4...e5 5.Nf3 (5.d4 ed4 6.Nf3 dc3 7.Bc3 Ne4 8.Qb3 Na6 9.e3; 5.g3 Nc6 6.Nf3 e4 7.Nh4 Be6 8.f4 Be7 9.f5) 5...Bd6 6.c4 Nc6 7.c5 Nb4 8.e4 de4 9.cd6; D) 4...Nbd7 5.Nf3 (5.Na3 e5 6.Nf3 Be7 7.e3 0–0 8.Be2 a5 9.Nc2; 5.Qb3 c5 6.Nf3 e5 7.Na3 Be7 8.d3 0–0 9.h3; 5.e3 e5 6.Nf3 Bd6 7.Na3 c6 8.a5 0–0 9.Be2; 5.g3 e5 6.Nf3 a5 7.Bg2 Bd6 8.Na3 ab4 9.cb4; 5.d3 e5 6.Nf3 Be7 7.Nbd2 0–0 8.g3 c5 9.bc5) 5...e5 6.e3 Bd6 7.Na3 c6 8.Be2 a5 9.0–0; E) 4...a6 5.Nf3 (5.Na3 Qd6 6.Nf3 Nc6 7.Nc2 Bg6 8.Ba3 Ne5 9.Ne5) 5...g6 6.Na3 Bg7 7.Nc2 Nc6 8.b5 Na5 9.d3; F) 4...a5 5.Nf3 (5.b5 e6 6.Nf3 Nbd7 7.Na3 Bd6 8.Nc2 0–0 9.Ncd4) 5...e6 6.Nd4 Bg6 7.Qb3 ab4 8.cb4 Na6 9.Ba3; G) 4...g6 5.d3 (5.Na3 Nc6 6.Nf3 Bg7 7.Nc2 Ne4 8.d3 Nd6 9.Ncd4; 5.Nf3 Nc6 6.d3 Bh6 7.h3 Bf4 8.g4 Be6 9.c4; 5.e3 Nc6 6.Nf3 Bg7 7.Nd4 Nd4 8.cd4 0–0 9.Nc3) 5...Nc6 6.Nf3 Bh6 7.h3 Bf4 8.g3 Bd6 9.Nbd2.

4.d3 A) 4...a5 5.Nf3 (5.Bd2 e5 6.Nf3 Bd6 7.Na3 0–0 8.Nb5 ab4 9.cb4; 5.ba5 Nc6 6.Nf3 e5 7.Na3 Bc5 8.Qb3 e4 9.Ng5) 5...e6 6.ba5 Nc6 7.Na3 Bc5 8.Nb5 0–0 9.h3; B) 4...e6 5.h3 (5.Nf3 a5 6.b5 Nbd7 7.Nbd2 Bd6 8.g3 0–0 9.Bg2) 5...a5 6.b5 Nbd7 7.g4 Bg6 8.Nd2 Bd6 9.Ngf3; C) 4...Qd6 5.Nf3 (5.Nd2 g6 6.Ngf3 Bg7 7.Nd4 Nc6 8.Nf5 gf5 9.d4; 5.Bd2 Nc6 6.Nf3 h5 7.Na3 a6 8.g3 Ne5 9.Ne5; 5.Na3 a6 6.Nf3 Nc6 7.Nc2 e5 8.Ba3 Qd7 9.b5; 5.Bb2 Nc6 6.Nf3 e6 7.Nbd2 Be7 8.b5 Na5 9.g3; 5.Qb3 Nc6 6.Nf3 0–0–0 7.Ng5 Bg6 8.Nd2 h6 9.Ngf3; 5.Ba3 Nbd7 6.Nf3 g6 7.Nbd2 Bh6 8.h3 Be6 9.g4) 5...Nc6 6.Nbd2 g6 7.b5 Ne5 8.Ne5 Qe5 9.Qc2; D) 4...Nc6 5.Nf3 e6 6.Na3 Bd6 7.Nb5 0–0 8.h3 h5 9.Bg5; E) 4...a6 5.Nf3 (5.Nd2 Nc6 6.Ngf3 e5 7.Nb3 Be7 8.b5 ab5 9.ab5; 5.Na3 Qd6 6.Nf3 Nc6 7.Nc2 e5 8.b5 ab5 9.ab5; 5.h3 e5 6.g4 Be6 7.Nf3 Nc6 8.Na3 Bd6 9.b5) 5...Nc6 6.Na3 Qd6 7.Nc2 e5 8.Ne3 Be6 9.Ba3; F) 4...Nbd7 5.Nf3 (5.Na3 e5 6.Nf3 a5 7.Qb3 c6 8.h3 ab4 9.cb4; 5.a5 e5 6.Nf3 Be7 7.h3 0–0 8.Nbd2 h5 9.Qb3; 5.Qb3 e5 6.Nf3 Be7 7.Na3 0–0 8.h3 a5 9.g4) 5...e5 6.h3 a5 7.Bd2 h5 8.Na3 Be7 9.ba5; G) 4...e5 5.h3 (5.Nd2 a5 6.b5 Bd6 7.Ngf3 0–0 8.g3 Nbd7 9.Bg2) 5...a5 6.g4 Be6 7.b5 Nbd7 8.Bg2 Nc5 9.Nf3.

4.Nf3 A) 4...e6 5.Na3 (5.e3 Bd6 6.Nd4 0–0 7.Na3 a5 8.Nab5 ab4 9.Nd6; 5.Nd4 Bd6 6.Nf5 ef5 7.Qc2 g6 8.h4 Nc6 9.d4; 5.Nh4 Bd6 6.Na3 0–0 7.Nb5 Nc6 8.Nd6 cd6 9.Nf5; 5.d3 Bd6 6.Na3 Nc6 7.Nb5 0–0 8.h3 h5 9.Bg5; 5.h3 a5 6.b5 Bd6 7.d3 Nbd7 8.Nbd2 h6 9.g4; 5.Qb3 Nc6 6.Na3 Be7 7.Nb5 0–0 8.Nfd4 Nd4 9.Nd4) 5...a5 6.ba5 Nc6 7.Nb5 Ra5 8.Nbd4 Bd6 9.Qb3; B) 4...a5 5.Qb3 (5.b5 Nbd7 6.Nh4 Bg4 7.h3 Be6 8.Nf3 g6 9.Nd4; 5.Bb2 ab4 6.cb4 Nc6 7.b5 Nb4 8.Nd4 Bd7 9.Nc2; 5.Nh4 Bg4 6.h3 Bc8 7.b5 e5 8.d4 Ne4 9.Nf3; 5.d3 e6 6.ba5 Nc6 7.Na3 Bc5 8.Nb5 0–0 9.Nfd4; 5.ba5 Nc6 6.Na3 e5 7.Nb5 Bd6 8.Nh4 Bd7 9.g3; 5.Ba3 Nbd7 6.Qb3 e5 7.ba5 Bd6 8.d4 Ra5 9.Nbd2) 5...ab4 6.cb4 Nc6 7.Nc3 e5 8.b5 Nd4 9.Nd4; C) 4...Nc6 5.Na3 (5.d4 e6 6.b5 Na5 7.Nbd2 Bd6 8.Ne5 0–0 9.h4; 5.e3 g6 6.b5 Na5 7.Nd4 Bd7 8.f4 Bg7 9.Be2; 5.g3 a6 6.Na3 e6 7.Bg2 Bd6 8.b5 Ne5 9.Nd4; 5.d3 e6 6.Na3 Bd6 7.Nb5 0–0 8.h3 h5 9.Bg5) 5...e6 6.Nb5 e5 7.d4 a6 8.de5 ab5 9.ef6; D) 4...g6 5.d3 (5.Na3 Nc6 6.Nb5 Bg7 7.Nfd4 Nd4 8.Nd4 Bd7 9.Qb3; 5.Nd4 Bd7 6.d3 Nc6 7.Nd2 Bg7 8.N2f3 0–0 9.Qb3) 5...Bg7 6.Na3 Nc6 7.b5 Na5 8.Nd4 Bd7 9.g3; E) 4...Nbd7 5.Na3 (5.Qb3 e5 6.Na3 c6 7.e3 Bd6 8.Be2 0–0 9.0–0; 5.Nh4 Be6 6.Na3 g6 7.Nb5 Bg7 8.Nd4 0–0 9.g3; 5.d3 e5 6.h3 a5 7.Bd2 h5 8.Na3 Be7 9.ba5; 5.h3 a5 6.Nh4 e6 7.ba5 Bd6 8.Na3 0–0 9.Nb5; 5.e3 e5 6.Be2 a5 7.Qb3 Bd6 8.0–0 0–0 9.Ba3) 5...e5 6.Qb3 Bd6 7.Nb5 0–0 8.Nd6 cd6 9.e3.

3.a4 Bg4

4.Na3 a5 5.ba5 (5.f3 Bd7 6.b5 e6 7.Nh3 Bd6 8.g3 0–0 9.Bg2; 5.h3 Bf5 6.ba5 Nc6 7.Nf3 Ra5 8.Nb5 e5 9.Qb3; 5.b5 Nbd7 6.Nf3 e6 7.h3 Bh5 8.d3 Bd6 9.g4; 5.Bb2 ab4 6.cb4 e6 7.Nc2 Na6 8.h3 Bh5 9.Bc3) 5...Ra5 6.Nf3 Bd7 7.Qb3 b6 8.Nc2 e6 9.g3.

4.a5 e5 5.h3 Bh5 6.g4 Bg6 7.Qb3 Be7 8.Bg2 c6 9.b5 Nfd7 (9...Nbd7 10.c4–/+) 10.Ba3 Nc5 11.Bc5 Bc5 12.bc6 bc6 13.Qb7 Qh4?? (better is 13...Nd7 14.Qc6 Rb8=) 14.e3+– (14.Qa8 Qf2 15.Kd1 Qg2 16.Qb8 Kd7 17.Qb7 Kd6–+) 14...Qe7 15.Qa8 0–0 16.Bd5! cd5 17.Qd5 Rd8 18.Qb3 Be4 19.f3 (better is 19.Rh2+–) 19...Qh4+= 20.Kd1 Bd3 21.Ne2 Be3 22.Ra2? (better is 22.Kc1 Qf2 23.Ng3–/+) 22...Be2–+ 23.Kc2 (23.Ke2 Qf2 24.Kd1 Qf3 25.Kc2 Qh1 26.de3 Na6–+ (worse is 26...Qh3 27.Kb2–+)) 23...Bf3 24.Rf1 Be4 25.Kb2 Bd5 26.Qb5 Bf4 27.c4 Bc6 28.Qc5 Qf6 (28...Qh3!? 29.Rc1–+) 29.Kc1 Qe6 30.Rb2 (30.Rc2–+) 30...Na6 31.Qa7 (31.Qg1–+) 31...Qc4 32.Nc3 Qf1 33.Nd1 Ba4 34.Qe7 Qd1 0–1. maddoxdb – kokkie, gameknot.com, 2013. (=1.c3 Nf6 2.b4 d5)

4.Bb2 A) 4...Nc6 5.h3 (5.Nf3 e6 6.h3 Bf3 7.gf3 Bd6 8.Na3 0–0 9.Rg1 ; 5.Na3 e6 6.Nf3 Bd6 7.Nb5 0–0 8.e3 h6 9.Be2; 5.d3 e5 6.Nf3 Bd6 7.b5 Na5 8.h3 Bd7 9.c4; 5.d4 g6 6.Nf3 Bg7 7.h3 Bf5 8.g4 Be6 9.Nbd2) 5...Bf5 6.Nf3 e6 7.b5 Na5 8.d3 Bd6 9.g4; B) 4...g6 5.h3 (5.Nf3 Bg7 6.h3 Bf3 7.gf3 Nc6 8.b5 Ne5 9.Na3; 5.Na3 Bg7 6.Nf3 0–0 7.h3 Be6 8.Nb5 Nc6 9.d3) 5...Bd7 6.Nf3 Nc6 7.b5 Na5 8.d3 Bg7 9.Nbd2; C) 4...a5 5.f3 (5.h3 Bf5 6.Nf3 e6 7.Nd4 Bg6 8.ba5 e5 9.Nf3; 5.Nf3 Na6 6.Ne5 ab4 7.Ng4 Ng4 8.e3 Nf6 9.Ba6; 5.b5 Nbd7 6.Nf3 e6 7.d3 Bd6 8.Nbd2 0–0 9.h3; 5.ba5 Nc6 6.Na3 g6 7.h3 Bf5 8.Nf3 Bg7 9.Nb5; 5.Na3 ab4 6.cb4 e6 7.Nc2 Na6 8.h3 Bh5 9.Bc3) 5...Be6 6.Na3 g6 7.Nh3 Bh6 8.Nf2 0–0 9.Nd3.

4.d3 A) 4...e5 5.h3 (5.Nf3 Bd6 6.h3 Bd7 7.Na3 a6 8.e3 0–0 9.Be2; 5.Nd2 Bd6 6.Ngf3 0–0 7.h3 Bd7 8.Bb2 Nc6 9.b5; 5.Na3 d4 6.Nf3 dc3 7.Ne5 Bb4 8.Nc2 Bd6 9.Ng4) 5...Bd7 6.Nf3 Bd6 7.Na3 a6 8.c4 Bb4 9.Bd2; B) 4...a5 5.h3 (5.b5 Nbd7 6.h3 Bf5 7.g4 Bg6 8.Nf3 e5 9.Nbd2) 5...Bd7 6.b5 e5 7.Nf3 Bd6 8.Ba3 Be6 9.d4.

4.d4 A) 4...a5 5.h3 (5.Nf3 ab4 6.cb4 e6 7.b5 Nbd7 8.Nc3 Bd6 9.h3; 5.b5 e6 6.Nf3 Bd6 7.h3 Bf5 8.g4 Bg6 9.Nbd2; 5.f3 Bf5 6.b5 Nbd7 7.g4 Bg6 8.Nh3 e5 9.g5; 5.ba5 Nc6 6.Nf3 e6 7.Na3 Na5 8.Ne5 Bf5 9.f3) 5...Bf5 6.b5 Nbd7 7.Nf3 e6 8.Nbd2 Bd6 9.g4; B) 4...e6 5.h3 (5.Nf3 a5 6.ba5 Nc6 7.Nbd2 Bd6 8.h3 Bf5 9.Nh4 ; 5.Nd2 a5 6.h3 Bf5 7.b5 Nbd7 8.Ngf3 Bd6 9.g4) 5...Bf5 6.Nf3 Bd6 7.g4 Bg6 8.Na3 c6 9.Ne5; C) 4...Nc6 5.Nf3 (5.Nd2 g6 6.h3 Bf5 7.g4 Bd7 8.Bg2 e6 9.Ngf3 ; 5.h3 Bd7 6.Nd2 e6 7.b5 Ne7 8.Ngf3 Nf5 9.e3; 5.b5 Na5 6.Nf3 g6 7.h3 Bf5 8.g4 Be6 9.Nbd2) 5...g6 6.b5 Na5 7.h3 Bd7 8.Nbd2 Bg7 9.Ba3; D) 4...g6 5.f3 (5.h3 Bd7 6.Nf3 Bg7 7.Na3 0–0 8.Bf4 a6 9.e3; 5.Nf3 Bg7 6.h3 Bd7 7.Bf4 0–0 8.Nbd2 Nh5 9.Bg5; 5.Bf4 Nc6 6.Nf3 Nh5 7.Bg5 h6 8.Bd2 Bg7 9.h3; 5.Na3 Nc6 6.h3 Bf5 7.g4 Bd7 8.Bf4 Ne4 9.Nf3; 5.Nd2 Bg7 6.h3 Bd7 7.Ngf3 0–0 8.e3 Bf5 9.g4) 5...Bc8 6.Nh3 Bg7 7.Nf4 Nc6 8.b5 Na5 9.Nd2.

4.Nf3 A) 4...Nc6 5.b5 (5.d3 Qd6 6.Nbd2 g6 7.h3 Bd7 8.b5 Ne5 9.Qb3; 5.d4 e6 6.b5 Na5 7.h3 Bf5 8.Nbd2 Bd6 9.g4; 5.h3 Bf3 6.ef3 e5 7.b5 Na5 8.Be2 Bd6 9.0–0; 5.Na3 Ne4 6.Bb2 Qd7 7.h3 Bf5 8.d3 Nd6 9.Nc2) 5...Na5 6.d3 e6 7.Nbd2 Bd6 8.h3 Bh5 9.g4; B) 4...Nbd7 5.Na3 (5.h3 Bf3 6.ef3 e6 7.d4 Bd6 8.Bd3 a5 9.ba5 ; 5.d3 a5 6.Nbd2 e5 7.Qb3 Bd6 8.h3 Be6 9.Ng5; 5.d4 a5 6.Qb3 e6 7.ba5 Qc8 8.c4 Be7 9.Nc3; 5.Qb3 e5 6.Na3 c6 7.h3 Be6 8.e3 Bd6 9.Be2; 5.Bb2 e5 6.Na3 Be7 7.h3 Bf5 8.d4 e4 9.g4) 5...e5 6.h3 Bf5 7.d3 h5 8.Qd2 Be7 9.Ne5; C) 4...e6 5.h3 (5.d3 Bd6 6.Nbd2 Nc6 7.h3 Bf3 8.Nf3 0–0 9.g4; 5.Na3 Nc6 6.h3 Bf3 7.ef3 Bd6 8.b5 Ne7 9.Bd3) 5...Bf3 6.ef3 Bd6 7.d4 0–0 8.Bd3 a5 9.b5.

4.h3 A) 4...Bd7 5.Nf3 (5.Na3 Nc6 6.Nf3 g6 7.Qb3 a6 8.c4 Bg7 9.Bb2 ; 5.d4 Nc6 6.Nf3 e6 7.b5 Na5 8.Nbd2 Bd6 9.e3; 5.d3 e5 6.Nf3 Bd6 7.Na3 a6 8.Bg5 0–0 9.Nc2) 5...g6 6.Na3 Bg7 7.d3 Nc6 8.Nc2 a6 9.b5; B) 4...Bh5 5.Nf3 (5.g4 Bg6 6.Nf3 Nc6 7.d3 a6 8.Na3 Qd6 9.Bg2 ; 5.d3 a5 6.b5 Nbd7 7.Nd2 e5 8.Ngf3 Bg6 9.Nh4; 5.Bb2 Nc6 6.Nf3 e6 7.d3 Bd6 8.g4 Bg6 9.Na3) 5...Nc6 6.b5 Na5 7.d3 e6 8.g4 Bg6 9.Be3; C) 4...Bf5 5.Nf3 (5.d3 Nc6 6.Nf3 e6 7.g4 Bg6 8.Na3 Bd6 9.Nb5) 5...Nc6 6.d3 Qd6 7.Ba3 Ne5 8.Nbd2 a5 9.ba5.

3.a4 g6

4.Na3 A) 4...Nc6 5.Nf3 (5.d3 Bg7 6.Nf3 0–0 7.h3 Ne8 8.Qb3 a6 9.Bd2; 5.b5 Na5 6.d3 Bg7 7.Bd2 0–0 8.Nf3 Re8 9.c4; 5.Qb3 Bg7 6.Nf3 0–0 7.d3 e5 8.Bg5 h6 9.Bh4) 5...Bg7 6.d3 0–0 7.Bg5 Bf5 8.h3 Nd7 9.Nb5; B) 4...a5 5.Qb3 (5.Bb2 ab4 6.cb4 Bg7 7.Nf3 0–0 8.Rc1 Nc6 9.b5; 5.Nf3 Bg7 6.Bb2 Ne4 7.Qb3 0–0 8.d3 Nd6 9.h4; 5.d4 Ne4 6.Qb3 ab4 7.cb4 Nc6 8.Nf3 e5 9.Nc2; 5.Nc2 Bg7 6.Nf3 Ne4 7.Nfd4 ab4 8.cb4 Nc6 9.e3; 5.ba5 Ra5 6.Nf3 Bg7 7.Nb5 Bd7 8.Nbd4 0–0 9.Bb2) 5...Bg7 6.Nf3 Ne4 7.Nb5 ab4 8.Qd5 bc3 9.Ra3; C) 4...Bd7 5.Nf3 (5.b5 Bg7 6.Nf3 0–0 7.Bb2 c5 8.c4 Be6 9.Ng5; 5.d3 Nc6 6.Nf3 Bg7 7.Nc2 Nh5 8.Ncd4 0–0 9.Qb3) 5...Nc6 6.d3 Bg7 7.Nc2 Ng4 8.Ncd4 Nge5 9.Qb3; D) 4...Bh6 5.Nf3 (5.d3 Bc1 6.Qc1 Nc6 7.Nf3 0–0 8.Qf4 Qd6 9.Qd6; 5.Qb3 Nc6 6.Nf3 0–0 7.Nb5 Bg7 8.Nbd4 Nd4 9.cd4; 5.d4 Bc1 6.Qc1 0–0 7.Nf3 a5 8.b5 Nbd7 9.g3; 5.Qc2 Nc6 6.Nf3 a6 7.d3 Bc1 8.Rc1 Bg4 9.e3) 5...0–0 6.d3 Bc1 7.Qc1 a6 8.Qf4 Bg4 9.Nc2; E) 4...Bg7 5.Nf3 (5.d3 a5 6.Nf3 ab4 7.cb4 Ne4 8.Bf4 Bc3 9.Nd2; 5.Qc2 Nc6 6.Nf3 0–0 7.d3 Nh5 8.Bb2 a6 9.b5) 5...Ne4 6.Bb2 Nc6 7.d3 Nc3 8.Qd2 d4 9.Nb5.

4.a5 Bg7 5.Qa4 Bd7 6.Qb3 0–0 7.e3 Nc6 8.Bb5 a6 9.Bc6 Bc6 10.Ne2 e6 11.Nd4 Bd7 12.0–0 c6 (12...e5 13.Nf3 Bb5 14.Rd1–/+) 13.d3 b5 14.Nd2 Qc7 15.N2f3 e5 16.Nc2 Be6 17.d4 e4 18.Ng5 Ng4 19.g3 Bd7 20.Ne1? (20.f3!? ef3 21.Nf3–/+) 20...h6 21.f4? (21.Nh3 Ne3! 22.Be3 Bh3–+) 21...ef3 (21...hg5 22.fg5 f6 23.gf6 Rf6 24.Rf6 Bf6 25.Ra2–+) 22.Nef3? (better is 22.Ngf3 Rae8 23.Nd3–/+) 22...hg5–+ 23.Ng5 Bh6 24.e4 de4?? (better is 24...Bg5 25.Bg5 de4–+) 25.Rf7+– Rf7 (25...Be6 26.Rf8 Rf8 27.Qe6 Kg7 28.Qg4 Bg5 29.Bg5 Qf7 30.Qe4 Qf2 31.Kh1 Qf3 32.Qf3 Rf3+–) 26.Qf7 Kh8 27.Qh7 1–0. maddoxdb – recess_bully, gameknot.com, 2012. (=1.c3 d5 2.b4 Nf6)

4.Bb2 A) 4...Bh6 5.e3 (5.Nf3 0–0 6.Na3 a5 7.Qb3 Bg4 8.h3 Be6 9.e3; 5.Na3 Nc6 6.Nf3 0–0 7.e3 Bg7 8.Qb3 a6 9.Be2; 5.d4 0–0 6.Nd2 Bf5 7.Ngf3 Qd6 8.e3 a5 9.b5) 5...Nc6 6.Nf3 0–0 7.Na3 Bf5 8.Be2 e5 9.b5; B) 4...Bg7 5.Nf3 (5.d3 Nc6 6.Nf3 a6 7.b5 Na5 8.Nbd2 0–0 9.Nb3; 5.Na3 Nc6 6.d3 0–0 7.Nf3 e5 8.b5 Na5 9.c4; 5.d4 0–0 6.Nf3 Nc6 7.Nbd2 Bf5 8.e3 Ne4 9.Be2) 5...0–0 6.d3 Be6 7.Nbd2 Qd6 8.Nb3 Nc6 9.b5; C) 4...Bd7 5.b5 (5.Nf3 Nc6 6.d4 Bg7 7.Nbd2 0–0 8.e3 Bf5 9.Be2; 5.d4 Bh6 6.Nf3 Nc6 7.Nbd2 0–0 8.e3 Bf5 9.b5; 5.d3 Nc6 6.Nd2 Bh6 7.Ngf3 0–0 8.g3 Bg4 9.Bg2; 5.c4 dc4 6.Nf3 Nc6 7.Na3 Nb4 8.Nc4 c5 9.Qb3; 5.e3 Bg7 6.Nf3 0–0 7.Qb3 Nc6 8.Na3 Be6 9.Nc2; 5.Na3 Bg7 6.b5 0–0 7.Nf3 c5 8.c4 Be6 9.Ng5) 5...Bf5 6.Nf3 Nbd7 7.d3 Nc5 8.Nbd2 Bh6 9.Ba3; D) 4...Bf5 5.Nf3 (5.d3 Nc6 6.Nf3 Bh6 7.b5 Na5 8.h3 Bf4 9.e3; 5.Na3 Nc6 6.Nf3 Bh6 7.e3 0–0 8.Be2 e5 9.0–0; 5.e3 Nc6 6.Nf3 Bg7 7.b5 Na5 8.d3 0–0 9.Nbd2) 5...Nc6 6.Na3 Bg7 7.Nc2 Ne4 8.Ncd4 0–0 9.Nf5; E) 4...a6 5.Nf3 (5.Na3 Bg7 6.Nf3 0–0 7.e3 Nc6 8.b5 Na5 9.d3; 5.e3 Bg7 6.d4 0–0 7.Nf3 a5 8.Qb3 Bf5 9.Be2; 5.d4 Bh6 6.Nf3 0–0 7.e3 Bf5 8.Bd3 Be4 9.Be2; 5.d3 Nc6 6.Nf3 Bf5 7.b5 ab5 8.ab5 Ra1 9.Ba1) 5...Bg7 6.d4 Nc6 7.Nbd2 0–0 8.e3 e5 9.b5; F) 4...Nc6 5.Nf3 (5.d3 Bh6 6.Nf3 Qd6 7.Na3 a6 8.b5 Ne5 9.Ne5; 5.b5 Na5 6.d3 Bh6 7.Nf3 0–0 8.Nbd2 c6 9.e3; 5.d4 Bh6 6.Nd2 0–0 7.Ngf3 Bf5 8.b5 Na5 9.e3; 5.Na3 Bg7 6.Nf3 0–0 7.d3 Re8 8.b5 Na5 9.c4) 5...Bh6 6.Na3 0–0 7.e3 Bg7 8.Qb3 a6 9.Be2.

4.d3 A) 4...a6 5.Nf3 (5.Na3 Bg7 6.Qc2 Nc6 7.b5 Ne5 8.Nf3 Nf3 9.gf3; 5.Bd2 Bg7 6.Nf3 0–0 7.Na3 Re8 8.c4 e5 9.Qb3; 5.Nd2 Bg7 6.Ba3 0–0 7.Ngf3 Nh5 8.d4 Nc6 9.e3; 5.Qc2 Bg7 6.Na3 Qd6 7.Nf3 Nc6 8.b5 Ne5 9.Ne5; 5.Bf4 Nc6 6.Nf3 Nh5 7.Be3 Bg7 8.Qb3 0–0 9.Nbd2; 5.Qb3 Nc6 6.Nf3 Bg7 7.Bf4 Nh5 8.Be3 0–0 9.Nbd2) 5...Bg7 6.Na3 0–0 7.Qc2 Be6 8.g3 Nc6 9.b5; B) 4...Bd7 5.Nf3 (5.Nd2 Bg7 6.Ngf3 0–0 7.Nb3 Ng4 8.d4 b6 9.Bf4; 5.Na3 Nc6 6.Nf3 Bg7 7.Nc2 Ng4 8.Ncd4 0–0 9.Qb3; 5.Qb3 Nc6 6.Nf3 a6 7.Nbd2 Bg7 8.Nd4 0–0 9.N2f3; 5.Bg5 Bg7 6.Nf3 0–0 7.Nbd2 h6 8.Bf4 Nh5 9.Be5) 5...Bg7 6.Nbd2 0–0 7.Nb3 Nh5 8.d4 b6 9.e3; C) 4...a5 5.Nf3 (5.b5 Nbd7 6.Nf3 Bg7 7.Nbd2 0–0 8.Ba3 Re8 9.Qc2) 5...Bg7 6.b5 0–0 7.Nbd2 Nbd7 8.g3 Ng4 9.h3; D) 4...Nc6 5.Nf3 (5.b5 Ne5 6.f4 Ned7 7.Nd2 Bg7 8.Nb3 Ng4 9.Qc2; 5.Nd2 Bg7 6.b5 Na5 7.Ngf3 0–0 8.Ba3 c6 9.Qc2) 5...Bg7 6.b5 Na5 7.Nbd2 0–0 8.Ba3 c6 9.Qc2; E) 4...Bg7 5.Nd2 (5.Nf3 0–0 6.Nbd2 a6 7.Ba3 Bd7 8.g3 Nc6 9.Bg2; 5.Na3 a5 6.ba5 Bd7 7.Nf3 Ra5 8.Qb3 b6 9.Nc2; 5.Bd2 a5 6.Nf3 0–0 7.Na3 ab4 8.cb4 Nc6 9.Rc1; 5.Bb2 0–0 6.Nf3 Qd6 7.Nbd2 Re8 8.g3 a5 9.b5; 5.Bg5 a5 6.b5 0–0 7.Nd2 Qd6 8.Ngf3 Nbd7 9.Nb3; 5.Qc2 Nc6 6.Nf3 0–0 7.b5 Na5 8.Ba3 c6 9.Nbd2) 5...Nh5 6.d4 0–0 7.Ngf3 Nc6 8.e3 a6 9.Be2.

4.d4 A) 4...Bg7 5.Nd2 (5.Nf3 0–0 6.Nbd2 Re8 7.g3 a5 8.b5 Bf5 9.Bg2; 5.Bb2 Nc6 6.Nf3 a6 7.Nbd2 0–0 8.g3 Bg4 9.Bg2; 5.Bf4 Nc6 6.Nf3 0–0 7.Nbd2 Nh5 8.Bg5 h6 9.Bh4; 5.h4 0–0 6.Nf3 Bf5 7.Nbd2 a6 8.Ba3 Nc6 9.b5; 5.Bg5 Ne4 6.Nf3 Ng5 7.Ng5 e5 8.h4 ed4 9.cd4) 5...Bf5 6.Ngf3 0–0 7.h3 Nc6 8.g4 Be6 9.b5; B) 4...Bf5 5.Nf3 (5.Nd2 a5 6.Ngf3 ab4 7.cb4 Nc6 8.Ba3 e5 9.de5; 5.Na3 Bg7 6.Nf3 0–0 7.Bf4 Ne4 8.h3 Nc6 9.g4; 5.g3 a5 6.Bh3 Qd7 7.Bf5 Qf5 8.Nf3 e6 9.Bd2; 5.h3 a5 6.b5 Bg7 7.Nd2 h5 8.Ngf3 Nbd7 9.e3; 5.Bf4 Nh5 6.Bd2 Bg7 7.Na3 0–0 8.Nf3 Nd7 9.h3) 5...Bg7 6.Nbd2 0–0 7.h3 Nc6 8.g4 Be6 9.Bg2; C) 4...Nc6 5.Nf3 (5.b5 Na5 6.Nf3 Bg7 7.Nbd2 0–0 8.e3 Bf5 9.Be2; 5.Nd2 Bg7 6.Ba3 0–0 7.b5 Na5 8.Ngf3 c6 9.e3; 5.Bb2 Bg7 6.Nf3 0–0 7.Nbd2 Bf5 8.e3 Ne4 9.b5; 5.Bf4 Bg7 6.Nf3 0–0 7.b5 Nh5 8.Bg3 Na5 9.Nbd2; 5.Ba3 Be6 6.Nd2 Bh6 7.b5 Na5 8.Ngf3 0–0 9.e3) 5...Bg7 6.b5 Na5 7.Nbd2 0–0 8.Ba3 Bf5 9.Bb4.

4.e3 Bg7 (4...Nc6 5.Nf3 Bg7 6.d4 0–0 7.Nbd2 Ne4 8.Ne4 de4 9.Nd2) 5.Nf3 (5.d4 0–0 6.Nd2 e5 7.Ngf3 e4 8.Ne5 Nbd7 9.Nd7; 5.Bb2 Nc6 6.Nf3 Bf5 7.b5 Na5 8.d3 Qd7 9.Nbd2; 5.Na3 Nc6 6.Nf3 0–0 7.Qb3 Ne4 8.Nb5 a6 9.Nbd4) 5...0–0 6.d4 Bf5 7.Nbd2 a5 8.b5 c6 9.Ne5.

4.Nf3 A) 4...Nc6 5.b5 (5.d3 Bg7 6.b5 Na5 7.Nbd2 0–0 8.Nb3 Nb3 9.Qb3; 5.Ba3 Bg7 6.b5 Na5 7.d3 0–0 8.Nbd2 c6 9.Nb3; 5.Qb3 a6 6.g3 Bh6 7.Na3 0–0 8.Bg2 Bg4 9.0–0) 5...Na5 6.d3 Bg7 7.Nbd2 0–0 8.Ba3 c6 9.Nb3; B) 4...a5 5.d3 (5.b5 Nbd7 6.d3 Bg7 7.Nbd2 0–0 8.g3 c6 9.bc6; 5.Na3 Bg7 6.Bb2 0–0 7.Qb3 Nbd7 8.e3 e5 9.Be2; 5.Bb2 Bh6 6.e3 0–0 7.Qb3 Bf5 8.Na3 Qd7 9.b5) 5...Bg7 6.b5 0–0 7.Nbd2 Nbd7 8.Ba3 Re8 9.Qb3; C) 4...Bd7 5.Na3 (5.d3 Bg7 6.b5 0–0 7.Bb2 Be6 8.Nbd2 Nbd7 9.Nb3; 5.b5 Bg7 6.Bb2 0–0 7.d3 Be6 8.Nd4 Nbd7 9.Nd2; 5.c4 Bg7 6.Nc3 0–0 7.b5 Be6 8.Nd4 Nbd7 9.e3) 5...Nc6 6.Qb3 Bg7 7.g3 0–0 8.Bg2 Bg4 9.b5; D) 4...Bg4 5.d3 (5.Na3 a5 6.Qb3 ab4 7.cb4 Nc6 8.Bb2 Bg7 9.h3; 5.h3 Bf3 6.ef3 Nc6 7.d4 Bg7 8.Bd3 0–0 9.0–0) 5...a5 6.b5 Nbd7 7.Be3 Bg7 8.Nbd2 e5 9.h3; E) 4...Bg7 5.Bb2 (5.d3 0–0 6.Bg5 h6 7.Bd2 e5 8.Ne5 Re8 9.Nf3; 5.Na3 0–0 6.d3 Nc6 7.Bd2 Ng4 8.h4 d4 9.c4; 5.Qc2 0–0 6.d3 a6 7.Na3 Bf5 8.b5 ab5 9.Nb5; 5.d4 0–0 6.Bf4 Nh5 7.Bd2 Nc6 8.Na3 a6 9.b5; 5.h4 0–0 6.d3 Nh5 7.Bd2 a5 8.ba5 Nc6 9.Na3; 5.h3 0–0 6.d3 a6 7.Na3 Qd6 8.Be3 Nfd7 9.Qb3) 5...0–0 6.Na3 Nc6 7.d3 a6 8.b5 ab5 9.ab5.

4.h3 A) 4...a5 5.b5 (5.Nf3 Bg7 6.b5 Nbd7 7.d3 Nc5 8.Nbd2 0–0 9.Nb3; 5.d3 ab4 6.cb4 Na6 7.b5 Nc5 8.Nf3 Bg7 9.d4) 5...Bg7 6.Nf3 Nbd7 7.d3 0–0 8.Nbd2 Nc5 9.Nb3; B) 4...a6 5.d3 (5.Nf3 Bg7 6.d3 Nc6 7.Na3 Qd6 8.b5 Ne5 9.Ne5) 5...Bg7 6.Nf3 0–0 7.Nbd2 Nc6 8.Ba3 Nh5 9.Qb3; C) 4...Nc6 5.b5 (5.Nf3 Bg7 6.d3 a6 7.Nbd2 0–0 8.Ba3 Nh5 9.Qb3; 5.d3 a6 6.Nf3 Bg7 7.Nbd2 0–0 8.Ba3 Nh5 9.Qb3) 5...Na5 6.d3 Bg7 7.Nf3 0–0 8.Nbd2 c5 9.e3; D) 4...Qd6 5.Na3 (5.Nf3 Bg7 6.Ba3 Nbd7 7.b5 Qb6 8.d4 0–0 9.Nbd2; 5.e3 Bg7 6.Nf3 0–0 7.Na3 a6 8.Bd3 e5 9.Be2; 5.d3 Bg7 6.Nf3 Nc6 7.Na3 a6 8.Be3 Nd7 9.Qd2; 5.Qb3 Bg7 6.Nf3 0–0 7.Na3 a6 8.Nc2 Nc6 9.Ba3; 5.Bb2 a5 6.Na3 Qb6 7.Nf3 Bg7 8.Nb5 Nc6 9.Qb3; 5.Ba3 Bh6 6.Nf3 Nbd7 7.b5 Qb6 8.e3 0–0 9.c4) 5...a6 6.Nf3 Bg7 7.d3 0–0 8.Be3 Nfd7 9.d4; E) 4...Bd7 5.Nf3 (5.d3 Bg7 6.Nf3 Nc6 7.Nbd2 0–0 8.Nb3 Ne8 9.d4; 5.Na3 Nc6 6.Nf3 Bg7 7.d3 0–0 8.b5 Na5 9.Qc2; 5.Bb2 Nc6 6.Nf3 Bh6 7.g4 Bg7 8.d3 0–0 9.Nbd2; 5.Qb3 Nc6 6.Nf3 Bg7 7.d4 0–0 8.Nbd2 Bf5 9.g4; 5.a5 Bg7 6.Nf3 0–0 7.d3 Re8 8.Bg5 h6 9.Bh4; 5.d4 Bg7 6.Nf3 Nc6 7.Nbd2 0–0 8.Nb3 a6 9.Nc5) 5...Bg7 6.d3 0–0 7.Nbd2 Nh5 8.Qb3 Nc6 9.g4; F) 4...Bg7 5.Nf3 (5.d3 0–0 6.Nf3 a5 7.b5 Nbd7 8.Nbd2 Nc5 9.Nb3) 5...0–0 6.d3 a6 7.Nbd2 Nc6 8.Ba3 Nh5 9.Qb3.

3.Qa4 Nc6

4.b5 Nb8 5.Nf3 Bd7 6.e3 a6 7.h3 e6 8.Ne5 (8.Ba3 c5=) 8...Bd6 9.Nf3 0–0 10.Ba3 Ba3 11.Na3 c6 12.ba6 Na6 13.Qb3 Nc5 14.Qb2 b5 15.Nc2 e5 (15...Re8!?–/+) 16.Ne5= Qc7 17.Nf3 Bf5 18.d4 Nd3 (18...Na4 19.Qb3=) 19.Bd3 Bd3 20.Ne5 Be4 21.f3 Bg6 22.0–0 Bh5? 23.Nb4+– c5 24.Nbd3 cd4 25.cd4 Nd7 26.Rac1 Qd6? 27.Rc6 Qe7 28.Rc7 Qe6 29.Rd7 Rfd8 30.Rd8 Rd8 31.Qb5 f6 32.Ng4 Bg4 33.fg4 Qe3 34.Kh1 Qe2 35.Kg1 Re8?? 36.Nf4 Qe3 37.Kh2 Qd4 38.Qd5 Qd5+– 39.Nd5 Rd8 40.Ne7 Kf7 41.Nf5 Rd2 42.Ra1 g6 43.Ng3 Ke6 44.a4 Rd6 45.a5 Ra6 46.Ne4 f5 47.Nc5 (47.Nc5 Kd5 48.Na6+–) 1–0. martin78ns – wolfblood, kurnik, 2012.

4.b5 Ne5 5.e3 (5.d4 Ned7=+) 5...Bd7 (5...Bf5!?–/+) 6.d4= Ng6 7.Nf3 e6 8.Ba3 a6 9.Qb3 ab5 10.Bb5 (10.Bf8 Rf8 11.Bb5 b6=) 10...Ba3 11.Bd7 Qd7 12.Na3 0–0 13.Nc2 b6 14.a4 (14.h4 Ne4=+) 14...Ne4 15.Nb4 c5 16.dc5 (better is 16.Nc2!?–/+) 16...bc5 17.Nc2 c4 18.Qa3 Rfb8 19.Nb4 Qc7 (19...Nc5!? 20.a5–+) 20.Nd4 Nc5 21.a5 Nd3 22.Ke2 Nb4 23.cb4 Ne5 24.Rhc1? Qb7?? 25.Rab1 Nd3–/+ 26.Rc3 Qc7 27.a6 Qb6 28.b5–/+ Ra6 29.ba6?? Qb1–+ 30.a7 Qe1 31.Kf3 Qf2 32.Kg4 Qg2 33.Kh4 Qh2 34.Kg4 Qg2 35.Kh4 g5 36.Kh5 Ra8 37.Qf8 (37.Qf8 Rf8 38.Rd3 Qh3 39.Kg5 f6 40.Kf4 e5#; 37.Rd3 f6 38.Qf8 Rf8 39.e4 cd3 40.Nf5 Qh3 41.Nh4 Qh4#). martin78ns – emman, kurnik, 2011.

3.Qa4 Bd7–/+

4.b5 c6 5.e3 cb5 6.Bb5 a6 7.Bd7 Nbd7 8.Nf3 e6 9.0–0 Bd6 10.d4 0–0 11.Ba3 Ba3 12.Qa3 Ne4 13.Nbd2 Nd2 14.Nd2 Qg5 (14...Qc7 15.e4=+) 15.Nf3 Qh5 16.h3 (16.Qb4 b6=) 16...Nf6 17.Qd6 (17.Qb4 Rab8=) 17...Ne4=+ 18.Qe5 (18.Qb6=+) 18...Qg6 (18...Qe5 19.Ne5 Rfc8 20.Nd7–/+) 19.Rac1 (better is 19.c4 Nc3 20.c5=) 19...f6?? (19...b5 20.Qc7–/+) 20.Qc7?? (20.Qe6!? Qf7 21.Qf7 Kf7 22.c4+/–) 20...Ng5 21.Ng5+= fg5 22.Qe5 g4 23.hg4 Qg4 24.Rb1 b5=+ 25.a4 ba4 26.Rb7 Rfe8 27.Qc7 Rf8 28.f3 Qg5=+ 29.f4 Qg4 30.Rf3 h6 31.Kf2 Qh4?? 32.Rg3 Qf6 33.Rg7 Kh8 34.Rh7 Kg8 35.Qg7 Qg7 36.Rbg7# 1–0. martin78ns – dariotoro2, kurnik, 2012.

4.b5 c6 5.e3 cb5 6.Bb5 Nc6 7.Nf3 e6 8.0–0 Bd6 9.Ba3 a6 (9...Bc7 10.Qb3=+) 10.Bc6 (better is 10.Bd6!? ab5 11.Qb3+=) 10...Bc6=+ 11.Qd1 0–0 12.Bd6 Qd6 13.Ne5?? (better is 13.a4=+) 13...Qe5–+ 14.d4 Qd6 15.f3 e5 16.de5 Qe5 17.f4 (17.Re1 Rfe8–+) 17...Qd6 18.Qe2 Ne4 19.Nd2 Bb5 20.c4 Nd2 21.Qd2 Bc4 22.Rfd1 Rad8 23.Qd4 Qe7 24.Rd2 b5 25.Re1 Rfe8 26.Rf2 Qe4 27.Qb6 Ra8 28.Rf3 a5 29.Rg3 a4 30.a3 Rab8 31.Qd6 Rbd8 32.Qc7 d4 33.Qb6 de3 34.Rge3 Qa8 35.Re8 Re8 36.Rc1 Qe4 37.Qd6 Qe3 38.Kh1 Qc1 39.Qd1 Qd1# 0–1. martin78ns – c62j, kurnik, 2012.

4.b5 c6 5.e3 cb5 6.Bb5 e6 7.Nf3 a6 8.Bd7 Nbd7 9.Ne5 (9.0–0 b5 10.Qd1 Qa5=+) 9...Bd6 (9...b5 10.Qf4 g5 11.Qg5–/+) 10.Nf3 0–0 11.Ba3 b5 12.Qc2 Qe7 13.Bd6 Qd6 14.d4 Rac8 15.h3 Rc4 16.0–0 Rfc8 17.Qd2 (17.Nfd2 R4c6–/+) 17...Ne4 18.Qe2 (18.Qb2 Nb6–/+) 18...Nc3–+ 19.Nc3 Rc3 20.Nh2 (20.Rfb1 Nb6–+) 20...Nb6 21.Qg4 Na4 22.Nf3 f6 23.Nh4 Qe7 24.Nf3 Nb6 25.Qf4 Nd7 26.e4 de4 27.Qe4 R3c4 28.Rfd1 Qd6 29.Qg4 Qe7 30.Qg3 e5 31.de5 Ne5 32.Nh2 Qc7 33.Qb3 Kh8 34.Qe3 Qc5 35.Qc5 R4c5 36.Rd6 R5c6 37.Rdd1 Kg8–+ 38.a4 b4 39.Rab1 a5 40.f4 Nc4 41.Nf3 Kf7 42.Re1 Re8 43.Red1 Rce6 44.Rd7 R8e7 45.Rd4 Re4 46.Rd5? R7e6 47.g3 Rd6 48.Rd3?? Rd3 49.h4 Nd2 (49...Nd2 50.Nd2 Rd2–+) 0–1. martin78ns – anno65, kurnik, 2012.

3.d3 e5

4.Nd2 a5 5.b5 (5.ba5 Bd6 6.e4 0–0 7.ed5 Nd5 8.Qb3 Bc5 9.Ngf3 Nc6 10.a6+=) 5...Bd6 6.e4 0–0 7.Ngf3 Nbd7 8.ed5 Nd5 9.Ne4 N7f6 10.Nd6 +=.

4.Nd2 Bd6 5.e3 0–0 6.Be2 d4 7.cd4 ed4 8.a3 de3 9.fe3 Nd5 10.Ne4 +=.

4.Nd2 Bd6 5.e4 c6 6.Qc2 Be6 7.Ngf3 h6 8.Nb3 Nbd7 9.a3 de4 10.de4 Bb3 11.Qb3 Ne4 12.g3 (12.Be3 Nef6+=) 12...Ng5 13.Ng5 hg5 14.Bg2 Qe7 15.0–0 f5 16.Rd1 e4 (16...g4 17.Ra2 0–0–0 18.Rad2+=) 17.Bg5= Qg5 18.Rd6 0–0–0 19.Qf7 Ne5 (19...Nf6 20.Rd8 Rd8 21.Rb1+=) 20.Qe6= Nd7 21.Qf7 Ne5 (21...Nf6 22.Rd8 Rd8 23.Rb1+=) 22.Qe6= Nd7 23.h4 Qf6 24.Bh3 Qe6 (24...Rh5 25.Rad1 Qe6 26.Re6=) 25.Re6 Rdf8 26.Kg2 Rf7 27.Rf1 Rhf8 28.f3 ef3 29.Kf3 Nb6 30.Kf4 Kd7 31.Rfe1 Nd5 32.Kg5 Nc3 33.R6e5 Nb5 34.Bf5 Kc7 35.Bg6 Rf3 (35...Rd7!?+=) 36.Re7 Kb6 37.g4 Ra3 38.Rg7 Rb3 39.Ree7 Rb8 (39...Rb4 40.Rb7 Kc5 41.Rbf7+/–) 40.h5 Rb4 41.h6 Rd4 42.h7 Rdd8 (42...Rd5 43.Kf4 Rf8 44.Ref7 Rd4 45.Ke5 Rh8+–) 43.Re8!! Re8 44.Be8 (44.Be8 Re8 45.Rg8+–) 1–0. nuclearowl (1895) – tinieblas (1870), gameknot.com, 2011. (=1.c3 Nf6 2.b4 d5)

4.Nd2 Bd6 5.e4 Nc6 6.b5 Ne7 7.Ngf3 0–0 8.Be2 Bd7 9.c4 d4 10.Nb3 +=.

4.Nd2 Bd6 5.Ngf3 Bf5 6.Qc2 e4 7.Nd4 Bg6 8.e3 a5 9.b5 Nbd7 10.Bb2 –/+.

4.Nd2 Be6 5.Ngf3 (5.Qa4 Qd7 6.Qd7 Nbd7 7.Ngf3 a5 8.b5 Bc5 9.e4 0–0 10.Be2+=) 5...Bd6 6.e4 0–0 7.Be2 a5 8.b5 Qe8 9.c4 d4 10.0–0 =.

4.Nd2 Bf5 5.e3 (5.Qc2 e4 6.e3 Bd6 7.de4 Ne4 8.Bd3 Qh4 9.g3 Qe7 10.Ngf3+=; 5.Ngf3 Bd6 6.Qc2 e4 7.Nd4 Bg6 8.e3 a5 9.b5 Nbd7 10.Bb2–/+; 5.Nb3 Bd6 6.Nf3 Nbd7 7.e3 0–0 8.Be2 Qe8 9.Nh4 Be6 10.0–0+=; 5.e4 de4 6.de4 Be4 7.Ngf3 a5 8.b5 Bc5 9.Ne5 0–0 10.f4+=) 5...Bd6 6.Ngf3 Nbd7 7.Be2 0–0 8.0–0 a5 9.b5 a4 10.c4 +=.

4.Nd2 Bg4 5.Ngf3 (5.h3 Be6 6.Ngf3 Bd6 7.e4 0–0 8.Ng5 Bc8 9.ed5 Nd5 10.Nde4+=) 5...Bd6 6.e4 0–0 7.Be2 c6 8.h3 Bh5 9.Rb1 b5 10.0–0 +=.

4.Nf3+= Bd6 5.Bg5 (5.e4 de4 6.de4 Ne4 7.Bd3 Nf6 8.Bg5 0–0 9.Nbd2 a5 10.b5–/+; 5.Nbd2 Bf5 6.Qc2 e4 7.Nd4 Bg6 8.e3 a5 9.b5 Nbd7 10.Bb2–/+) 5...h6 6.Bh4 0–0 7.e3 a5 8.b5 Bd7 9.d4 e4 10.Ne5 +=.

4.Bg5 A) 4...a5 5.b5 (5.Nf3 ab4 6.Ne5 d4 7.c4 Bd6 8.Nf3 Nc6 9.Nbd2 Bg4 10.Qc2–/+; 5.Qa4 Bd7 6.b5 h6 7.Bf6 Qf6 8.e3 c6 9.d4 ed4 10.Qd4–/+; 5.ba5 Ra5 6.Nf3 Bd6 7.e4 h6 8.Bf6 Qf6 9.ed5 Rd5 10.Nbd2+=) 5...h6 6.Bh4 Bd6 7.Nf3 Nbd7 8.e3 0–0 9.Be2 c6 10.Bg3+=; B) 4...Bd6 5.d4 (5.e3 h6 6.Bh4 a5 7.b5 0–0 8.Nf3 Bd7 9.d4 e4 10.Ne5+=; 5.Nf3 h6 6.Bh4 0–0 7.e3 a5 8.b5 Bd7 9.d4 e4 10.Ne5+=; 5.e4 Be6 6.Nf3 h6 7.Bh4 Nbd7 8.Nbd2 a5 9.a3 g5 10.Bg3+=; 5.Qb3 Be6 6.Nf3 h6 7.Bh4 Nbd7 8.e3 g5 9.Bg3 g4 10.Nfd2–/+) 5...e4 6.e3 0–0 7.Ne2 a5 8.b5 Nbd7 9.Nd2 a4 10.Qc2+=; C) 4...Be6 5.Nf3 (5.e3 h6 6.Bh4 Bd6 7.Nf3 Nbd7 8.Be2 Qe7 9.Qa4 0–0 10.Qb5+=) 5...h6 6.Bh4 Bd6 7.e4 Nbd7 8.Nbd2 a5 9.b5 0–0 10.Be2+=; D) 4...Nbd7 5.e3 (5.Nf3 h6 6.Bh4 Bd6 7.e3 0–0 8.Be2 a5 9.b5 c6 10.Bg3+=; 5.e4 h6 6.Bf6 Nf6 7.Nf3 Bd6 8.ed5 Nd5 9.d4 ed4 10.Qd4+=; 5.Nd2 h6 6.Bh4 c5 7.bc5 Bc5 8.Ngf3 0–0 9.d4 Bd6 10.Bg3+=; 5.Qa4 Be7 6.Nf3 0–0 7.e3 a5 8.Be2 e4 9.de4 de4 10.Nd4–/+) 5...h6 6.Bh4 Be7 7.Nf3 0–0 8.Be2 c6 9.Bg3 e4 10.Nd4+=; E) 4...h6 5.Bh4 a5 6.b5 Bd6 7.e3 0–0 8.Nd2 Bd7 9.Rb1 Re8 10.Ngf3+=.

3.d3 g6

4.a3 Bg7+= (4...a5 5.Qa4 Bd7 6.b5 c6 7.bc6 Bc6 8.Qh4 Nbd7 9.Nf3 Rc8 10.e3+=; 4...Nbd7 5.e3 (5.Nd2 Bg7 6.Ngf3 a5 7.b5 0–0 8.e4 de4 9.de4 Nc5 10.e5+=; 5.Nf3 Bg7 6.Bf4 0–0 7.e3 Nh5 8.Bg5 h6 9.Bh4 a5 10.b5=) 5...a5 6.b5 Bg7 7.Nf3 0–0 8.Be2 a4 9.0–0 Nc5 10.Nbd2=; 4...Bf5 5.h3 (5.Nf3 Bg7 6.Bf4 Nbd7 7.h3 Nb6 8.g4 Bd7 9.Bg2 h6 10.a4=) 5...h6 6.g4 Bd7 7.Nf3 a5 8.Bb2 Bg7 9.Bg2 Bc6 10.Nbd2=; 4...e5 5.Nd2 (5.Nf3 Bd6 6.c4 dc4 7.dc4 e4 8.c5 ef3 9.cd6 fg2 10.Bg2=) 5...a5 6.b5 Bd6 7.e4 0–0 8.Ngf3 Nbd7 9.ed5 Nd5 10.Ne4=) 5.Bb2 (5.Nf3 a5 6.Qa4 Nbd7 7.Nbd2 c6 8.b5 Nb6 9.Qb3 0–0 10.Rb1+=; 5.e3 Nbd7 6.Nf3 0–0 7.Be2 h6 8.0–0 a5 9.Bb2 c5 10.b5=; 5.Nd2 a5 6.b5 Nbd7 7.Ngf3 0–0 8.Rb1 Nc5 9.Bb2 Bg4 10.c4=; 5.d4 0–0 6.Nf3 Bf5 7.Bf4 Nh5 8.Bg5 h6 9.Bh4 a5 10.e3+=; 5.Bf4 Nbd7 6.Nf3 a5 7.b5 0–0 8.e3 Re8 9.d4 Nh5 10.Bg5=; 5.Bg5 Nbd7 6.Nf3 0–0 7.e3 a5 8.d4 h6 9.Bf6 Bf6 10.Be2+=) 5...0–0 6.Qc2 (6.Nf3 Bg4+= (6...a5 7.e3 ab4 8.ab4 Ra1 9.Ba1 Qd6 10.Be2=) 7.Ne5 Bf5 8.Nd2 Nbd7 9.c4 dc4 10.Ndc4+=) 6...Re8 (6...e5 7.e4+= (7.Nd2 Nbd7 8.Ngf3 a5 9.e4 h6 10.Be2=) 7...Be6 8.Nf3 Qd6 9.c4 d4 10.c5=; 6...a5 7.e3 ab4 8.cb4 Bd7 9.Nf3 Ba4 10.Qe2+=) 7.e3 (7.e4 e5 8.Nf3 Bg4 9.Be2 a5 10.0–0=) 7...e5 8.Be2 (8.Nf3 Bg4 9.c4 Bf3 10.gf3+=) 8...a6 (8...Nc6 9.e4 (9.Nf3+= e4 10.de4+=) 9...a5 10.b5+=; 8...Bf5 9.Nd2 a5 10.e4+=) 9.Nd2 (9.Nf3 e4 10.Nd4+=) 9...Be6 (9...e4 10.c4=; 9...a5 10.Ngf3=) 10.Rd1 (10.Ngf3 Nc6=) 10...c6 (10...Nfd7 11.Ngf3=) 11.c4 Nfd7 12.Ngf3 a5 13.0–0 (13.b5 cb5 14.cb5 Qb6=) 13...Na6 (13...ab4 14.ab4 Na6 15.Bc3=) 14.Bc3 (14.ba5 Qa5 15.cd5 cd5=) 14...ab4 15.ab4 Qc7 (15...d4 16.ed4 ed4 17.Bd4 Nb4 18.Qc3 Bd4 19.Nd4=) 16.Ra1 f6 (16...b5 17.Qb2=) 17.Qb2 (17.Ra3 Bf8 18.c5 Ra7+=) 17...Qd6 (17...Bg4 18.cd5 cd5 19.Rfc1=) 18.Ra3 (18.c5 Qe7=) 18...c5 (18...Nc7 19.Rfa1=) 19.bc5 Qc5 (19...Nac5 20.Rfa1 Ra3 21.Qa3+=) 20.d4 Qc7 21.cd5 Bd5 22.e4 ed4 23.Ba5 (better is 23.Nd4 Be4 24.Ne4 Re4 25.Bf3+/–) 23...Qd6? (better is 23...b6 24.ed5 ba5=) 24.Ba6+– (24.ed5?! Re2 25.Nd4 Ree8=) 24...Bf8 25.Rfa1 Ra6 26.ed5 Rea8 (26...Qd5 27.Ra4 Bc5 28.Qb5+–) 27.Qd4 Qc5 28.Ra4 (better is 28.Qe4!?+–) 28...Qd4 (28...b6 29.Qe4 ba5 30.Nc4+=) 29.Nd4 (29.Rd4?! Ra5 30.Ra5 Ra5=) 29...b6 30.N2b3 (better is 30.Nc4!?+/–) 30...ba5= 31.Ra5 (31.Ne6 Nb6 32.Nbc5 Na4 33.Na6 Ra6 34.Ra4 Bb4+=) 31...Ra5 32.Ra5 Ra5 33.Na5 Nb6 34.Kf1 Nd5 35.Ke2 Kf7 36.Kf3 (36.Nac6 Bc5=) 36...Bd6 37.h3 Be5 38.Nac6 Bc7 ½–½. Cvetkovic,Milosav – Fustar,Janko, Spring Open, Belgrade SRB, 2003.

4.Nd2 A) 4...Bg7 5.Ngf3 (5.e3 0–0 6.Ngf3 a5 7.b5 Qd6 8.Be2 Qc5 9.Qb3 a4 10.Qb2=) 5...Bf5 6.Nd4 Bg4 7.h3 Bc8 8.e4 0–0 9.Be2 Qd6 10.0–0=; B) 4...a5 5.b5 (5.ba5 Bg7 6.Ngf3 0–0 7.e4 de4 8.de4 Ra5 9.Qc2 Nc6 10.Be2=; 5.Qa4 Bd7 6.b5 Bg7 7.Ngf3 c6 8.bc6 Nc6 9.e4 Ne5 10.Qd4=) 5...Bd7 6.Rb1 Bg7 7.e4 Be6 8.e5 Nfd7 9.d4 Bf5 10.Rb2=; C) 4...Bf5 5.Qa4 (5.e3 e5 6.Ngf3 Nbd7 7.Be2 Bg7 8.0–0 0–0 9.Bb2 Qe7 10.Qc2=; 5.h3 e5 6.g4 Be6 7.Ngf3 Bd6 8.Bg2 h6 9.0–0 Nbd7 10.Nb3+=; 5.Nb3 e5 6.h3 Bd6 7.Nc5 Bc8 8.Nf3 a5 9.Qa4 c6 10.d4+=; 5.Ngf3 Bg7 6.Nd4 Bd7 7.e4 0–0 8.Be2 a5 9.ba5 c5 10.N4b3+=; 5.Ndf3 Bg7 6.Nd4 Bg4 7.h3 Bd7 8.Ngf3 0–0 9.Bf4 a5 10.b5+=) 5...Bd7 6.Qc2 a5 7.ba5 Ra5 8.Ngf3 Bg7 9.e4 Ba4 10.Qb1=.

4.Nf3 A) 4...a5 5.b5 (5.Qa4 Bd7 6.b5 c6 7.bc6 Nc6 8.Qb3 Bg7 9.Bg5 Bc8 10.Nbd2+=; 5.ba5 Bg7 6.Nbd2 0–0 7.e4 de4 8.de4 Ra5 9.Qc2 Nc6 10.Be2=) 5...Bg7 6.Nbd2 Bf5 7.Nd4 Bd7 8.e4 0–0 9.Rb1 e5 10.N4f3=; B) 4...Nbd7 5.Nbd2 (5.Bf4 Bg7 6.e3 Nh5 7.Bg5 h6 8.Bh4 Rg8 9.d4 g5 10.Nfd2+=; 5.e3 Bg7 6.Be2 0–0 7.0–0 a5 8.Qc2 Re8 9.b5 c6 10.Na3=; 5.d4 Bg7 6.e3 0–0 7.Bd3 Re8 8.0–0 e5 9.de5 Ne5 10.Ne5=; 5.Qc2 a5 6.b5 Bg7 7.e4 de4 8.de4 Nc5 9.Nfd2 Qd6 10.Ba3=) 5...Bg7 6.e4 0–0 7.e5 Ng4 8.d4 a5 9.b5 a4 10.Bd3+=; C) 4...Bg7+= 5.d4 (5.e3 0–0 6.Be2 Nbd7 7.0–0 a5 8.Qc2 Re8 9.b5 c6 10.bc6=; 5.Nbd2 a5 6.ba5 Ra5 7.Nb3 Ra7 8.Bf4 Nbd7 9.Qd2 0–0 10.Nbd4+=; 5.Bf4 Nbd7 6.e3 Nh5 7.Bg5 h6 8.Bh4 Rg8 9.d4 g5 10.Nfd2+=; 5.Qc2 Bg4 6.Nbd2 0–0 7.h3 Bf3 8.Nf3 Qd6 9.g3 Qc6 10.Rb1=; 5.Bb2 0–0 6.e3 Nbd7 7.Be2 e5 8.0–0 e4 9.Nd4 c5 10.bc5=) 5...Bf5 6.e3 0–0 7.c4 Qd6 8.c5 Qe6 9.Nc3 Nc6 10.a3=; D) 4...Bd7 5.Nbd2 (5.Bf4 Bg7 6.e3 0–0 7.Be2 a5 8.ba5 Ra5 9.Qb3 b6 10.0–0=; 5.Qc2 a5 6.ba5 Ra5 7.Bf4 Bg7 8.Nbd2 0–0 9.e3 Nh5 10.Nb3+=) 5...Bg7 6.e4 de4 7.de4 Bc6 8.e5 Ne4 9.b5 Nc3 10.bc6=; E) 4...Bf5 5.e3 (5.h3 h6 6.g4 Bd7 7.Bg2 Bg7 8.d4 a5 9.ba5 Ra5 10.Qb3=; 5.Bf4 Bg7 6.e3 a5 7.b5 c6 8.Nd4 Bd7 9.bc6 Nc6 10.Nc6=; 5.Nd4 Bd7 6.Bf4 Nh5 7.Bd2 e5 8.Nf3 e4 9.de4 de4 10.Ng5=) 5...a5 6.b5 Bg7 7.Be2 c5 8.Qa4 0–0 9.0–0 Qd6 10.Nbd2=.

4.Bf4 A) 4...a5 5.Qa4 (5.b5 Bg7 6.Nf3 Bd7 7.Na3 0–0 8.e3 Bg4 9.d4 Nh5 10.Bg5+=; 5.Nf3 ab4 6.cb4 e5 7.Ne5 Bb4 8.Bd2 Bd6 9.d4 Ne4 10.e3+=) 5...Bd7 6.b5 c6 7.Na3 Bg7 8.Rb1 Ng4 9.d4 e5 10.de5=; B) 4...Bg7 5.e3 (5.Nf3 Nbd7 6.e3 Nh5 7.Bg5 h6 8.Bh4 Rg8 9.Be2 g5 10.Nd4=; 5.d4 Nh5 6.Bd2 Nd7 7.Nf3 0–0 8.e3 e5 9.de5 Ne5 10.Be2+=) 5...Nh5 6.Bg5 h6 7.Bh4 0–0 8.Be2 Nf6 9.Nf3 a5 10.b5=; C) 4...Bf5 5.Nf3 Bg7 6.e3 a5 7.b5 c6 8.Nd4 Bd7 9.bc6 Nc6 10.Nc6=; D) 4...h6 5.Nf3 Nbd7 6.Qa4 Bg7 7.Qa5 Nb6 8.e3 Bg4 9.Ne5 Bf5 10.Be2=; E) 4...Nbd7 5.Nf3 Bg7 6.Qa4 0–0 7.Qa5 b6 8.Qa4 Bb7 9.e3 Nh5 10.Bg5+=.

4.Bg5 A) 4...Nbd7 5.Nf3 (5.Qa4 Bg7 6.e4 0–0 7.Nd2 d4 8.cd4 Nb6 9.Qc2 Qd4 10.Rb1+=) 5...Bg7 6.e3 0–0 7.Be2 h6 8.Bh4 a5 9.b5 c6 10.Na3=; B) 4...a5 5.Bf6 (5.b5 Bg7 6.Nf3 c6 7.Na3 0–0 8.Rb1 Ng4 9.d4 Qd6 10.bc6=; 5.Qa4 Bd7 6.b5 c6 7.Bf6 ef6 8.bc6 Bc6 9.Qd4 Nd7 10.e3=; 5.ba5 Bg7 6.Nf3 Nbd7 7.Nbd2 h6 8.Bf6 Nf6 9.e4 Ra5 10.e5+=) 5...ef6 6.b5 Bd7 7.a4 Be6 8.e3 Bd6 9.Nf3 Nd7 10.Be2=; C) 4...e5 5.Nf3 (5.Qa4 Qd7 6.b5 Qf5 7.b6 Nfd7 8.Nf3 cb6 9.e4 de4 10.de4=; 5.e3 h6 6.Bh4 Bd6 7.Nf3 Nbd7 8.Be2 g5 9.Bg3 g4 10.Nh4=; 5.Bh4 a5 6.b5 Bd6 7.e3 0–0 8.Nf3 Nbd7 9.Be2 c6 10.bc6=) 5...h6 6.Bh4 Bd6 7.Bg3 Nbd7 8.d4 Qe7 9.e3 c6 10.b5=; D) 4...Bg7 5.Nf3 Nbd7 6.Bf4 0–0 7.e3 a5 8.b5 Nh5 9.Bg5 h6 10.Bh4+=.

3.d4

(--> 1.b4 Nf6 2.d4 d5 3.c3).

3...e6 (--> 1.b4 Nf6 2.d4 e6 3.c3 d5).

3.e3 e5

4.d3 A) 4...Bd6 5.Be2 (5.Nf3 0–0 6.Be2 Nbd7 7.0–0 Qe7 8.Nbd2+=) 5...0–0 6.Nf3 Nbd7 7.0–0 Qe7 8.Nbd2+=; B) 4...Nbd7 5.Nf3 (5.Be2 e4 6.de4 de4 7.Nh3 Bd6 8.Nd2+=) 5...Bd6 6.Be2 Qe7 7.0–0 0–0 8.Nbd2+=; C) 4...a5 5.Nf3 (5.b5 Bd6 6.Ba3 c5 7.d4 Nbd7 8.Nf3+=) 5...Bd6 6.b5 Bd7 7.d4 e4 8.Ne5+=.

4.d4 A) 4...Nbd7 5.Be2 (5.de5 Ne5 6.Be2 Ne4 7.Nf3 Nf3 8.gf3+=) 5...e4 6.Nh3 Bd6 7.Nf4 0–0 8.b5+=; B) 4...e4 5.Ba3+= (5.Be2 Bd6 6.Ba3 a6 7.Nd2 Nc6 8.c4–/+) 5...Be6 6.Ne2 Bd6 7.b5 Ba3 8.Na3+=.

4.Be2 A) 4...a5 5.b5 (5.Qa4 Bd7 6.b5 Bf5 7.Nf3 Nbd7 8.Ba3+=) 5...Nbd7 6.d4 Be7 7.de5 Ne5 8.Nf3+=; B) 4...Bd6 5.d4 (5.Nf3 0–0 6.0–0 a5 7.b5 e4 8.Nd4+=) 5...ed4 6.ed4 0–0 7.Nf3 Re8 8.0–0+=.

4.Nf3 Bd6 5.d3 (5.Be2 Bg4 6.d3 a5 7.b5 Qd7 8.0–0+=) 5...a5 6.b5 Bd7 7.d4 e4 8.Ne5 +=.

4.Nf3 Nbd7 5.Qa4 (5.d3 Bd6=+) 5...a6 (5...e4 6.Ne5–/+) 6.Ne5 (6.d4 ed4 7.ed4 Bd6=+) 6...c6 (better is 6...b5!? 7.Bb5 ab5 8.Qa8 Ne5=+) 7.Nc6 (7...bc6 8.Qc6=+; better is 7.Nf3!?+=) +=. thedragon – caveman, Live Game Caissa's Web, 2004.

4.Nf3 e4 5.Nd4 Bd6 6.d3 0–0 7.Nb5 Be7 8.de4 +=.

3.e3 Bf5

4.Na3 e5 (4...a5 5.b5 (5.Qa4 Nbd7 6.ba5 e5 7.Nf3 c6 8.d3–/+) 5...e5 6.Nf3 Bd6 7.Be2 Qe7 8.Nc2+=; 4...Nbd7 5.Nf3 (5.Nb5 a5 6.ba5 e5 7.d4 Ra5 8.Qb3–/+) 5...e5 6.Be2 a5 7.b5 Bd6 8.0–0+=) 5.Qa4 (5.Nf3 Nbd7 (5...e4 6.Nd4 Bd7+= 7.Be2 a5 8.b5+=) 6.Be2 a5 7.b5 Bd6 8.0–0+=; 5.d4 Nbd7 6.de5 Ne5 7.Nb5 a6 8.Nd4+=) 5...Bd7 (5...c6 6.Nf3 Bd6 7.Be2 Bg4 8.h3–/+) 6.Qb3 Nc6 (6...a5 7.ba5 Ra5 8.d4–/+) 7.f4 (7.d4 a6–/+ 8.de5–/+) 7...ef4 8.ef4 Bd6 9.d4 0–0 10.Be2 (10.Bd3!?–/+) 10...Ne4 11.Nf3 (11.Be3 Nc3! 12.b5 Re8 13.bc6 A) 13...Ne2 14.cd7 (worse is 14.Ne2 Bc6 15.Nc2 Qh4 16.g3 Qh3=) 14...Re3 15.Qe3 Nf4 16.Kf2+/–; B) 13...Re3 14.cd7 Qh4 15.Kf1 Qf4 16.Bf3 Qd4–+) 11...Nc3! 12.Bd2 (12.Qc3 Bb4) 12...Ne2 13.Ke2 a5 14.Qd5 (14.b5 a4 15.Qd3 Na7–+) 14...Nb4 15.Bb4 ab4 (15...ab4 16.Nc2 Re8 17.Kf2 Ba4–+) 0–1. vulpo – Whiterose, ChessWorld.net, 2005.

4.d4 a5 5.b5 (5.ba5 Ra5 6.Qb3 b6 7.Nf3 e6 8.Ne5+=) 5...e6 6.Ne2 Bd6 7.Ng3 Bg6 8.c4 +=.

4.d4 Nbd7 5.Nf3 (5.Bd3 Bd3 6.Qd3 a5 7.Nf3 ab4 8.cb4+=) 5...e6 6.Bd3 Ne4 7.0–0 Bd6 8.Qc2 +=.

4.d4 e6 5.Bd3 Bd3 6.Qd3 a5 7.Ba3 ab4 8.Bb4 +=.

4.d4 e6 5.Bd3 Bd3 6.Qd3 Nbd7 7.Nf3 =+.

4.d4 e6 5.Bd3 Bd3 6.Qd3 Be7 7.Nf3 b6 8.Nbd2 Nbd7 9.c4 (9.e4 c5 10.e5 Ng4=) 9...c5 (9...Bb4!? 10.a3 Bd6–/+) 10.bc5= bc5 11.cd5 Nd5 12.dc5 Nc5 13.Qb5 Qd7 14.Qd7 Nd7 15.0–0 (15.Bb2 f6=) 15...0–0 16.Ne4 Rfc8 17.a4 Rc2 18.Ba3 Ba3 19.Ra3 Rb8 20.h3 N7f6 21.Nd6 Rbb2 22.Nb5 a6 23.Nbd4 Rc4 24.Ne5 Rcb4?? 25.Nd3+/– Ne3?? 26.fe3+– Rd4 27.ed4 Rd2 28.Rf2 Rd1 29.Kh2 Ne4 30.Rf3 Ng5?? 31.Rf2 Ne4 32.Rb2 g6 33.Ne5 f6 34.Ng4 f5 35.Ne3 Re1 36.Nc4 Rc1 37.Ne5 Nd6 38.Rb8 Kg7 39.Rg3 Ne4 40.Re3 Rc2 41.Rb7 Kh6 42.Rb6 Ng5 43.Ra6 f4 44.Re1 f3 45.Rg1 f2 46.Rf1 Ne4 47.Re6 Re2 48.Ng4 Kg5 49.Re5 Kf4 50.g3! Kf3 51.Nf2! Nf2?? 52.Kg1 Re5 53.Rf2 Ke4 54.Re2 Kd4+/– 55.Re5 Ke5 56.a5 Kd5 57.a6 Kc6 58.a7 Kb7+/– 59.a8Q Ka8 60.Kf2 Kb7 61.Kf3 Kc7 62.Kf4 h6 63.Ke5 Kd7 64.Kf6 h5 65.Kg6 h4 66.gh4 Ke6 67.h5 Ke5 ½–½. martin78ns – darekgm, kurnik, 2011.

4.d4 e6 5.Bd3 Bg6 6.Bg6 hg6 7.Nf3 Be7 8.h3 b6 9.a4 c5 10.bc5 bc5 11.dc5 Bc5 12.Ba3 (12.c4 Ne4 13.cd5 Rh5=) 12...Qe7 13.Bc5 Qc5 14.Qc2 (14.Qd4 Nbd7=+) 14...Nc6 15.0–0 Na5 16.Nbd2 Nc4 17.Nc4 Qc4 18.Rab1 0–0 (18...Ne4 19.Rfc1=+) 19.Rb4 Qc5 20.Rh4 (20.Rb5 Qc7=) 20...a5 21.Nd4 Nd7 22.Rg4 Ne5 23.Rg3 Nc4 24.f4 Rab8–/+ 25.f5 ef5 26.Nf5?? gf5 27.Qf5 Rb7 28.Rf4 Nd6?? 29.Qg5 f6 30.Qh5 Rff7 31.Rh4 Kf8 32.Qh8 Ke7 33.Qh7 Kd8 34.Qg8 Kc7 35.Qh7 Kb6 36.Qb1 Ka6 37.Qd3 Nc4 38.Rh5 Rbd7 39.Rh8 Kb7 40.Kh2 Nb6 41.Rh5 Na4 42.Rf5 Nc3 43.Rf1 Ne4 44.Rb1 Ka7 45.Rf3 Rb7 46.Rd1 Ng5 47.Rff1 Rfd7 48.Rc1 Qb4 49.Rb1 Qd6 50.Kg1 Rb1 51.Rb1 Rb7 52.Rc1 Rc7 53.Qd4 Ka8 54.Ra1 Ra7 55.Qc3 Ne4 56.Qc8= Qb8 57.Qc6 Qb7 0–1. martin78ns – lukkow10, kurnik, 2012.

4.d4 e6 5.Nf3 Bd6 6.Bd3 Bd3 7.Qd3 Nbd7 8.0–0 =.

4.Nf3 A) 4...e6 5.Be2 (5.Bb5 Nbd7 6.Nh4 Bb1 7.Rb1 a5 8.a4+=) 5...Bd6 6.Nh4 Bb1 7.Rb1 Ne4 8.Nf3=; B) 4...a5 5.b5 Nbd7 6.d4 e6 7.Ba3 Ba3 8.Na3+=; C) 4...Nbd7+= 5.d4 (5.Bb5 a5 6.Bb2 c6 7.Be2 e5 8.b5+=) 5...e6 6.Bd3 Ne4 7.0–0 Bd6 8.Qc2+=.

3.Nf3 Bf5

4.d3 Nbd7 5.Nd4 e6 6.a4 Bd6 7.Nf5 ef5 8.a5 b5 9.ab6 cb6 10.Ba3 0–0 11.c4 d4 12.b5 Nc5 13.Nd2 (13.g3 a5=) 13...Bf4 (13...Nd3 14.ed3 Ba3 15.Be2+=) 14.g3 Bd6 (better is 14...Bd2 15.Kd2 a5=) 15.Bg2+/– Rc8 16.Nb3 Re8 (16...Nb3 17.Qb3 Ba3 18.Qa3+=) 17.Nc5 Bc5 18.Bc5 bc5 19.Ra7 Qb6 20.Ra6 Qc7 21.0–0 Ng4 22.Qa1 (22.Qc2 f4+/–) 22...f4 23.h3 Nh6 24.Ra7 Qe5 25.Be4 fg3 26.f3?? (better is 26.Qe1 gf2 27.Qf2+=) 26...Qh5–/+ 27.Kg2 f5?? 28.Bd5= Kh8 29.Qa6?? Re2–+ 30.Kg1 Rce8 31.Ra8?? Qh3 32.Re8 Re8 33.Qa2 f4 34.Qg2 Qh5 35.Ra1 Nf5 36.Qh1 Qg6 37.Bc6 Rf8 38.Be4 Qe6 39.Ra6 Qc8?? 40.Qg2?? Ne3 41.Qh3?? Qh3 (41...Qh3 42.Bh7 Qg2) 0–1. maddoxdb – muscardin, gameknot.com, 2013. (=1.c3 d5 2.b4 Nf6 3.Nf3 Bf5)

4.d3 e6 5.Ne5 Bd6–/+ 6.d4 Nbd7 7.Bf4 Nh5 8.e3 Nf4–/+ 9.ef4 f6 10.Nd7 Qd7 11.Qd2 c6 12.Bd3 (12.Be2 0–0–/+) 12...Bd3 13.Qd3 Bf4 14.0–0 e5 15.de5 fe5 16.Re1 e4 17.c4?? (better is 17.Nd2 Qd6 18.Ne4 Bh2 19.Kh1 de4 20.Qe4 Be5 21.Qe5 Qe5 22.Re5 Kf7 23.Rae1=) 17...Be5 18.Re4 (18.Qe3 Ba1 19.cd5 cd5 20.f3–+) 18...de4 19.Qd7 Kd7 20.Nc3 Bc3 21.Rd1 (21.Rb1 Ke6 22.Kf1 Rad8–+) 21...Ke6 22.g3 (22.a3 Rhd8 23.Rb1 Rd2–+) 22...Bb4 23.Kg2 Rad8 24.Rb1 a5 25.a3 Be7 (25...Ba3!? 26.Rb7 Rhf8 27.Rg7–+) 26.Rb7 Rd4 27.Ra7 Ba3 (27...Rd2 28.Kh3 Rf2 29.Rb7–+) 28.Rg7 (28.Ra5 Be7–+) 28...Rc4 29.Rc7 h5 (29...Rc2 30.Kh3–+) 30.Rb7 h4 (better is 30...Rc2 31.Kh3–+) 31.Kh3 hg3 32.Kg3 Bd6 33.f4 a4 (33...ef3 34.Kf3 Rc3 35.Ke2 Rh2 36.Kd1 Rd3 37.Kc1 Bf4 38.Kb1 Rd1) 34.Ra7 a3 35.Kg2 Rc3 (35...Rc2 36.Kf1 Rhh2 37.f5 Kf6 38.Rf7 Kf7 39.Ke1 Rh1) 36.Ra4 (36.f5 Kf6 37.Kf2 Rh2 38.Ke1 Rc1) 36...e3 (36...Rc2 37.Kf1 Rc1 38.Ke2 Rh2 39.Ke3 Bc5 40.Ke4 Rc3 41.f5 Kf6 42.Ra3 Rh4) 37.h4–+ Kf5 38.h5 Rh5 39.Kf3 (39.Ra7 Rc2 40.Kg1 e2 41.Rf7 Ke4 42.Re7 Be7 43.Kf2 e1Q 44.Ke1 Rh1) 39...e2! 40.Ke2 (40.Ke2 Rh2 Mate attack) 40...Rh2 41.Kd1 Bf4 0–1. Rudolf – Anna_Goldberg (1795), internet, 2007.

4.d3 e6 5.h3 Bg6 +=.

4.d3 e6 5.Nh4 Bg6 (5...Bd6 6.Nf5 ef5 7.g3+=) 6.Ng6 (6.Nd2 Bd6+=) 6...hg6 7.Nd2 c5 8.a3 Nc6 9.b5 (9.Nf3 Qb6+=) 9...Ne5–/+ 10.Nb3 (10.g3 Nfg4 11.Qa4 Bd6–/+) 10...c4 11.dc4 (11.Nd4 Neg4–+) 11...Nc4–+ 12.Nd2 (12.e3 Rc8–+) 12...Nd2 13.Bd2 Bd6 (13...Ne4!? 14.e3–+) 14.g3–/+ 0–0 (14...Rc8 15.Bg2–/+) 15.Bg2 Qc7 (15...Rc8 16.0–0–/+) 16.Qb3 Rfc8 17.0–0 Qc4 18.Qc4 Rc4 (18...dc4? 19.Bb7 Bc5 20.a4+–) 19.Rfd1 (19.Rfb1 Rac8–/+) 19...Be5 20.h3 (20.Bf3 b6–/+) 20...Rac8 21.Rab1 (21.Be3 Bc3 22.Rac1 b6–/+) 21...Bc3 22.Bf4 Ba5 (22...Ne4 23.Rdc1–/+) 23.Rbc1 Rc1 (23...Bb6 24.Rc4 Rc4 25.Rc1–/+) 24.Rc1 Rc1 25.Bc1 Kf8 (25...Bb6 26.e3–/+) 26.Be3 (26.Bb2 Ne4+=) 26...b6 (26...Bb6 27.Bc1–/+) 27.Bd4 Ke7 (27...Ne4 28.Be4 de4 29.Be5+=) 28.Be5 (28.Bf6 Kf6 29.e3 Ke5+=) 28...Ne8 29.a4 Nd6 (29...f6 30.Bb8+=) 30.Bg7 (30.Bd6 Kd6 31.Bf3+=) 30...Nc4 (30...f6!?+=) 31.e4= de4 32.Be4 Bb4 (32...Nd2 33.Bd3=) 33.Bd3+= Nd6 34.h4 (34.Kg2 Ne8 35.Bb2 Nf6+=) 34...Nf5 35.Be5 Bd6 36.Bc3 Bc5 37.Kg2 Bd4 38.Bd2 Kd6 39.g4 (39.Bf4 e5 40.Bd2 Ne7+=) 39...Ne7 (39...Nh4 40.Kg3 g5 41.Bg5=) 40.h5 gh5 41.gh5 Kc5 (41...Nd5!?+/–) 42.h6 Nd5 (42...f5 43.Bf4+–) 43.f4 1–0. Marre – Dziadek_KK, zagraj.pl, 2003.

2.Nc3 d4

3.Na4 e5 4.a3 Nf6 5.e3 Be7 6.Nf3 de3 7.fe3 e4 8.Ne5 Nbd7 9.Nd7 Qd7 10.Bc4?? (better is 10.Nc5 Qc6 11.d4=+) 10...Qa4–+ 11.Be2 Be6 12.0–0 Rd8 13.d4 0–0 (13...ed3 14.Bd3 Nd5 15.Qe2–+) 14.Bd2 c6 (14...Qc6 15.b5 Qd5 16.c4–+) 15.Be1 (15.c4 Qd1 16.Rad1 h5–+) 15...Nd5 16.Qc1 Bg5 17.Bd2 Nb6 18.c3 Nc4 19.Rf2 b6 20.Rf1 a6 21.Rf2 Bh6 22.Bf1 Rd7 23.Bc4 Bc4 24.Qb2 Rd5 25.Rb1 Rfd8 (26.Re1 Bg5–+) 0–1. Austin – Scarian, internet, 2005.

3.Nb5 a6 4.Na3 e5 5.c4 (5.c3!?–/+) 5...Bb4–+ 6.Nc2 Qe7 (6...Bc5 7.d3–+) 7.g3 (7.Nb4 Qb4 8.Qc2 Nc6–/+) 7...f6 (7...Bd6 8.Bg2–+) 8.Bg2–/+ Qc5 (8...Bc5–/+) 9.Nf3 (9.Nb4!? Qb4 10.Qc2–/+) 9...Qc4–+ 10.0–0 Bg4 (better is 10...Bd6–+) 11.Nh4?? (11.d3 Qc5 12.Rb1 Bc3=+) 11...Ne7 (better is 11...Be2 12.Qe2 Qe2 (12...Qc2?! 13.Qg4 Ne7 14.Bb7=) 13.Nb4 Qb5–+) 12.Bb7?? (better is 12.d3 Qc5 13.Rb1=+) 12…Bh3 (13.d3 Qc3 14.Ba8 Bf1 15.Kf1 Nbc6+–; better is 12...Be2 13.d3 Bd1 14.dc4 Bc2 15.Ba8 Bc3–+) 0–1. maronhalt (1690) – islanderfan (1620), net–chess.com, 2005.

3.Nd5?? Qd5–+ 4.c4 (4.Nf3 Nf6–+) 4...dc3! 5.Qa4 (5.dc3 Qd1 Combination) 5...Bd7 6.Qc2 Nc6 7.Qc3 Nf6 8.Nf3 e5 9.d3 (9.b5 Nd4 10.Nd4 ed4 11.Qb3–+) 9...Bb4 10.Bd2 Bc3 11.Bc3 e4 12.de4 Ne4 13.Bg7 Nb4 14.a3 (14.Bd4 Nc2 15.Kd1 Nd4 16.Ne5 Ba4 17.Kc1 Qa5 18.e3 Qd2 19.Kb1 Nc3) 14...Nc2 0–1. Duer,Stefan (2000) – Dammer,Axel (2400), remoteschach.de, 2005. (=1.Nc3 d5 2.b4 d4)

3.Ne4 e5 4.Ba3 Nf6 5.Nf6 Qf6 6.e3 Qb6 7.ed4 Qd4 8.Nf3 Qb6 9.c3 Be7 10.Ne5 Bf6 11.Qe2 0–0 12.0–0–0 Re8 13.f4 Nc6 14.d4 Bf5 15.Qh5 Be5 16.fe5 Bg6 17.Qg5 a5 (17...Ne7!?+/–) 18.b5 Ne7 (18...Na7 19.Bc5 Qe6 20.d5+–) 19.Be7 a4?? (better is 19...h6 20.Qh4 Qe6+/–) 20.Bc5 Qa5 21.Bb4 Qb6 22.Bc4 c6 23.bc6 bc6 (23...Qc6 24.Bd3 Qd5 25.Bg6 hg6 26.Kb1+–) 24.Rdf1 a3 (24...Rad8 25.Qf4 Kh8 26.Bf7+–) 25.Qf4 Ra7 26.e6 f6 27.Qd6 Qb7 (27...Kh8+–) 28.Qf8! Rf8 29.e7 Kh8 (29...Bf7 30.ef8Q) 30.ef8Q# (30.ef8B?! c5 31.Rf2 Qe4 32.Bfc5 Qb1 33.Kd2 Qc2 34.Ke1 Qb1 35.Ke2 Qe4 36.Kf1 Qb1 37.Ke2 Qe4 38.Kd1 Qb1 39.Ke2=) 1–0. Hossa (2240) – startlin_stefe, ICS rated bullet match, 1998.

3.Ne4 Bf5 4.d3 (4.Ng3 Bg6=) 4...Be4 (4...Nf6 5.Nf6 ef6 6.a3=+) 5.de4 Nc6 (5...e5 6.a3=+) 6.Rb1 (6.b5 Ne5=) 6...Nf6 (better is 6...e5 7.a3 Qh4=) 7.Nf3? (7.b5!? Ne5 8.Rb4=+) 7...e5 (7...Ne4 8.Bb2 e5–/+) 8.Ba3? (8.b5 Nb4 9.a3 Na2–/+) 8...Bd6 (better is 8...Ne4!? 9.Rb3 Nc3–+) 9.b5 Ba3 10.bc6 bc6 11.Ne5 (11.Qd3 Bd6 12.e3–/+) 11...0–0 12.Nc6 Qd6 13.Nd4 Bb4–+ 14.Rb4 Qb4 15.Qd2 Qb1 16.Qd1 Qd1 17.Kd1 Rab8 18.Nb3 Ne4 19.Kc1 Nf2 20.Rg1 Ng4 21.e4 Nh2 22.Bd3 Ng4 23.Rh1 Nf2 24.Rh5 Rbc8 25.Rf5 Nd3 26.cd3 Rcd8 27.d4 g6 28.Ra5 Ra8 29.e5 h5 30.d5? Rfe8 31.d6 cd6 32.ed6 Re2 33.d7 Rg2?? 34.Rd5?? Rd8 35.Nc5 Ra2 36.Nb7 Rd7! 37.Rd7 a5 38.Nd6 Kh7 39.Rf7 Kh6 40.Nc4 a4 41.Ne5 h4 42.Rf6 Kh5 43.Rg6 a3 44.Ra6? h3–+ 45.Nc4?? h2 46.Kb1 Re2 47.Ra3 h1Q# 0–1. gkash – islanderfan, net–chess.com, 2002.

3.Nb5 e5

4.Bb2 c6 5.c3? (better is 5.Na3 Bb4 6.Nc4–/+) 5...cb5–+ 6.cd4 ed4 7.Rc1 Nc6 (8.e3 de3 9.fe3 Qh4 10.g3 Qb4–+) 0–1. nachodynamite – juancabeta, internet, 2007.

4.c3 Bd7 5.e3 a6 6.Na3 Nc6 7.Nf3 Nf6 8.Qc2 Bg4 9.Bb2 e4 (better is 9...Qd7!?–/+) 10.Nd4= Nd4 11.cd4 Bb4?? (better is 11...c6=) 12.Qa4+– (12.Qa4 b5 13.Qb4+–) 1–0. usingprogram (2005) – koslin55, kurnik, 2013.

2.Nc3 e6

3.Rb1 c5 4.bc5 Bc5 5.e4 Qf6 (Better is 5...Nc6!?=+) 6.Nf3 Ne7? (Better is 6...Qe7+=) 7.d4 Bb6 (7...Nbc6 8.e5 Qf5+–) 8.e5 Qf5 9.Rb6! ab6 10.Nh4 Qg6 11.Ng6 Ng6 12.Nb5 0–0 13.a3 Nc6 14.Bd3 Bd7 15.Nd6 Nd4 16.Bg6 fg6 17.Qd4 b5 18.Qh4 Ra4 19.Qe7 Bc6 20.Qe6 Kh8 21.Nf7 Kg8 22.Nh6 Kh8 23.Qg8! Rg8 24.Nf7# 1–0. Woodeye – bluto, ChessWorld.net, 2002.

3.b5 f5 4.d4 Nf6 5.Nf3 Bd6 6.e3 0–0 7.Bd2 Nbd7 8.Bd3 Ne4 9.0–0 Rf6 10.Re1 Rh6 11.Rc1 Bh2 12.Nh2 Qh4 13.Be4 Qh2 14.Kf1 fe4 15.Qg4 Nf6 16.Qf4 Qh1 17.Ke2 Qg2 18.Rg1 Qh3 19.Qc7 Qh5 20.Ke1 Bd7 21.Qb7 Rf8 22.Qa7 Qf3–+ 23.Qc7 Ng4 24.Qg3–/+ Qf2?? 25.Qf2+/– Nf2 26.b6 Nh3 27.Rh1 Ng5 28.Rh6 gh6 29.Rb1 Nf3 30.Ke2 Rb8 31.a4 Bc8 32.Be1 Ba6 33.Kd1 h5 34.Bg3 Rb7 35.Bc7 h4 36.a5 h3 37.Kc1 h2 38.Kb2 Ng1?? 39.Bh2+– Nf3 40.Bf4 h5?? 41.Na4 Nd2 42.Nc5 Nc4 43.Kc3 Rh7 44.Na6 Na5 45.Nc5 Nb7 46.Rg1 Kf7 47.Nb7 (47...Kf6 48.Nd6+–) 1–0. Hossa (2465) – rabid (2295), ICS rated bullet match, 1998.

3.e4 Bb4 4.Nb5 Nf6 5.Bd3? (5.e5 Ne4–/+) 5...Nc6 (5...de4 6.Be2–+) 6.c4? (better is 6.Bb2–/+) 6...dc4–+ 7.Bc4 a6 (7...Ne4?! 8.Qc2 Qf6 9.Nf3–+) 8.Qa4 (8.Rb1 ab5 9.Bb5–+) 8...Ne4 9.f3 Nd6 (better is 9...Bd2 10.Kf1 Nc5–+) 10.Nd6 Bd6 (10...cd6?! 11.Bb5 Bc5 12.Bc6 bc6 13.Qc6 Bd7 14.Qe4–+) 11.Bb2 0–0 12.h4 Bd7 13.Qc2 b5 14.Be2 b4 15.Qe4 Re8 16.Qg4 e5 17.Qg3 Nd4 18.Bd3 e4 19.Qf2 ef3 20.Kd1 Ba4 21.Kc1 c5 22.Nf3 b3 23.Nd4 cd4 24.Qd4 Be5 25.Qe4?? Bb2–+ 26.Kb2 Re4 27.Be4 Qd2 28.Ka3 Rb8 29.ab3 Qb4 30.Kb2 Qb3 31.Kc1 Rc8 32.Kd2–+ Qb2 33.Ke3 Rc3 34.Bd3 Qb6 35.Kd2 Qb2 36.Ke3–+ Qb5 37.Rac1 Qd3 38.Kf4 Qe3 0–1. pjc49 – pieeater, ChessWorld.net, 2012.

3.e4 d4 4.Nce2 Bb4 5.Nf3 –/+.

3.e4 de4 4.Bb5 c6 5.Bc4 Nf6 6.a3–/+ Be7 7.b5 0–0 8.g3 cb5 9.Nb5 Bc5 10.d4 Bb6 11.f3? Nc6 12.Nh3 ef3 (13.Qf3 a6–+; better is 12...Ba5!? 13.Kf2 a6 14.Bb2 ef3 15.Kf3 ab5 16.Ba2–+) 0–1. dlucas – bar (1925), net–chess.com, 2005.

2.c4 dc4

3.Qa4 Bd7 4.b5 a6 5.Qc4 Bb5–/+ 6.Qe4 Bc6 7.Qc2 Nf6 8.Nc3 e6 9.e3 Bd6 10.Nf3 h6 11.Be2 0–0 12.0–0 Bf3 13.Bf3 c6 14.d4 Qc7 15.g3 Nbd7 16.Ne4 Ne4 17.Be4 Nf6 18.Bd3 e5 19.de5 Be5 20.Bb2 Rfe8 21.Be5 Re5 22.Rfd1 Rae8 23.a4 b6 24.Ba6= Rc5 25.Qe2 Ne4 26.Qf3 b5 27.ab5 cb5 28.Rdb1? Nd2–+ 29.Qe2 Nb1 30.Rb1 Qc6 31.Bb5–/+ Rb5?? 32.Rb5 Ra8 33.Rb1 Qe4 34.Rd1 Rc8 35.Qd3 Qf3 36.Qd7 Rc2?? 37.Qd8+– Kh7 38.Qd3 Kg8 39.Qc2 g6 40.Rd8 Kh7 41.Qc3 g5 42.Qh8 Kg6 43.Rd6 Kf5 44.Qf6 Kg4 45.Rd4 Kh3 46.Qh6 Qh5 47.Qh5# 1–0. Rudidp – larniletter, ChessWorld.net, 2011.

3.Bb2 Qd6 4.Qa4 Bd7 5.b5–/+.

3.Bb2 Qd7 4.Nf3+= Nf6 5.Ne5 (5.e3 e6+=) 5...Qd5 (5...Qd6 6.Qa4 Bd7 7.b5=) 6.e3 Nbd7 (6...e6 7.a3+=) 7.Nc4= Nb6 (7...e5 8.a3=) 8.Nc3 Qd8 9.d4 Bg4 (9...Nfd5 10.Nd5 Qd5 11.Nb6 ab6 12.Qc2+=) 10.f3 Bh5 (10...Bd7 11.Nb6 ab6 12.a3+=) 11.Bd3 (11.Na5 Rb8+=) 11...e6 12.a3 a5? (better is 12...Nc4!? 13.Bc4 Nd5+=) 13.Na5+/– Nbd7 (better is 13...Qc8!?+/–) 14.Nb7+– Qb8 15.Nc5 Nc5 (15...Bc5 16.dc5 (worse is 16.bc5 Qb2 17.Ne2 Ra3–/+) 16...0–0 17.Qc2+–) 16.dc5 1–0. Wall,Bill – GrownOld, internet, 2002.

3.b5 a6 4.ba6 Na6 5.e3 +=.

3.b5 c6 4.Qa4 e5 5.Bb2 Bd7 6.bc6 Nc6–+ 7.Qc4 Nf6 8.Nf3 Bd6 9.g3? 0–0–+ 10.Bg2 Be6 11.Qh4? h6?? 12.0–0? Be7 13.Ne5?? Ne5–+ 14.Be5 Rc8 15.Qa4 Bd5 16.d3?? Bg2–+ 17.Kg2 Qd5 18.e4 Qe5 19.Nd2 a6 20.Nf3 Qb8 21.Rac1 Rcd8 22.Rfd1 h5 23.e5 Ng4 24.d4 Qa7 25.h3 Nh6 26.Rc7=+ Rfe8 27.Qb3= h4 28.e6 fe6?? 29.Qe6+– Nf7 30.Nh4 Rd6 31.Qe4?? Ng5+= 32.Qe2?? Re6 33.Qc4–/+ Bd6 34.Rc8 b5?? 35.Re8+– Kf7 36.Re6 Ne6?? 37.Qd5+– Qe7 38.Nf5 Qf6 39.Nd6 Kg6 40.Ne4 Qe7 41.f4 Kh7 42.Qe5 Kg8 43.d5 Nf4 44.gf4 Qa3 45.Qe6 Kh8 46.d6 Qb2 47.Rd2 Qa3 48.Ng5 (48.Ng5 g6 49.Qg6 Qh3 50.Kh3 b4 51.Qh7#) 1–0. Onion Custard – 19larry, ChessWorld.net, 2009.

3.b5 Bd7 4.e3 dc4 5.Bc4 c6 6.Qb3 cb5 (6...Qg5 7.Bf1+=) 7.Bb5= Bb5 8.Qb5 Qd7 9.Nc3 a6 10.Qd7 (10.Qb6 Nc6 11.Nf3 Rc8=) 10...Nd7+= 11.Rb1 (11.Bb2 b5+=) 11...b5 12.Nf3 (12.Bb2 Rc8+=) 12...Ngf6 (12...Rc8 13.Bb2+=) 13.0–0 (13.d3 Rd8+=) 13...Be7 (13...Bd6 14.Bb2+=) 14.d4 (14.Bb2 b4 15.Ne2 Bd6=) 14...Nb6 15.a4 (15.Bd2!?+=) 15...b4–/+ 16.Ba3 (better is 16.a5 Nc4 17.Na2–/+) 16...ba3?? (better is 16...a5–+) 17.Rb6= 0–0 18.Ra1 (18.Rc1!?=) 18...Rfb8+= 19.Rb8 Rb8 20.g3 (20.Ne5 Rb2–/+) 20...Nd5 (20...Rc8 21.Nd1–/+) 21.Nd5+= ed5 22.Ne5 Rc8 (22...Rb3 23.Nd7+=) 23.Nd7 Rc4 (better is 23...f6!?=) 24.Nb6+= Rc2 25.Nd5 The passed pawn on d4 will quickly become a dangerous weapon 25...Bd6 26.e4 (26.h3 f5+=) 26...Rd2= 27.Ne3 White gets the initiative 27...Bf8 (worse is 27...Rd4 28.Nf5 Rd2 29.Nd6 Rd6 30.Ra3+/–) 28.d5 Rb2 (28...Bc5!?=) 29.Nc4 (29.Kg2 a2 30.d6 Bd6+/–) 29...Rb4 (29...Re2 30.Na3 Bc5 31.Nc4 Rf2 32.Kh1+/–) 30.Na3+/– Ra4 (30...Re4 31.Nc2+/–) 31.Nc2 Ra1 32.Na1 Be7 (32...a5 33.f4+/–) 33.e5 Kf8 34.d6 Bd8 35.Nb3 (35.f4 Ke8+–) 35...Bb6+/– 36.Kg2 (36.Nd2 Bd4 37.Nc4 Ke8+/–) 36...Ke8 (36...a5 37.f4+/–) 37.f4 Kd7 (37...a5+/–) 38.f5 (better is 38.Nd2+–) 38...a5 (38...f6 39.e6 Kd6+=) 39.g4 (39.Kf3!? f6 40.Ke4+=) 39...a4= 40.Nc1? (40.Nd2 a3 41.Kf3 a2+=) 40...f6?? (better is 40...Bd4–+) 41.e6= Kd6 42.h3 (42.Kf3 Bd4=) ½–½. Pietrzak,Wojciech(blind) – Kowalski,M, Poland, 2000.

3.Nc3 e5 4.a3 Bd6 5.e4 Be6 6.Nf3 Nd7 7.Nd5 Bd5–+ 8.ed5 b5 9.Be2? f6 10.0–0 Nb6 11.d3=+ Nd5 12.dc4= Nc3 13.Qd2 Ne2 14.Qe2= bc4 15.Qc4 Qe7?? 16.Qc6+– (16...Kf7 17.Qa8+–) 1–0. gdraper (2035) – tomy (2260), net–chess.com, 2006.

3.d3 cd3 4.ed3?? e5 5.g3?? Bb4 6.Ke2 Nf6 7.f4 ef4 8.gf4 0–0 9.a3 Bg4 10.Kf2 Qd4 11.Kg3 Qa1 12.h4 Bd1 13.d4 Be1 14.Kh2 Ng4 15.Kh3 Qd4 16.a4 Qf2 17.a5 Qg3 0–1. katanjake – joelynnturner, internet, 2007.

3.e3 Nc6 4.Bc4 Nb4 5.d4 e6 (5...Nf6 6.Nf3 e6 7.Nbd2+=) 6.Nf3 Nf6 7.0–0 (7.a3 Nbd5+=) 7...Be7 (7...Bd6 8.Nc3+=) 8.Nc3 (8.Ne5 0–0+=) 8...0–0 9.Qb3 (9.e4 a6+=) 9...b6 10.Ne5 Bb7 11.Ba3 a5 12.Rfd1 (12.Rac1 c5+=) 12...Nfd5 (12...Ne4 13.Rac1–/+) 13.Nb5 c6 (13...f6 14.Nd3+=) 14.Nc3 Bd6 15.Ne4 (15.Rac1 Qh4+=) 15...Bc7–/+ 16.Rac1 Qh4 17.Qb1 (17.Ng3 c5–/+) 17...Rfd8 18.Nf3 Qh5 19.Bb2 f5 20.Ng3 Qh6 21.a3 Na6 (21...b5 22.ab4 bc4 23.ba5 Ra5 24.Rc4=) 22.Ne5 b5 (22...Rf8 23.Qc2+=) 23.Bd5= cd5 (worse is 23...ed5 24.Nf5 Qf6 25.Nc6+=) 24.Bc3 b4 25.ab4 ab4 (25...a4 26.Qa1 Nb8 27.Bd2=) 26.Bb4 Be5 (26...Rab8 27.Be7 Re8 28.Rc7 Nc7 29.Nd7 Re7 30.Nb8+=) 27.de5 Nb4 28.Qb4 Ba6 29.Rc6 Qg6 30.Qe7 Re8 31.Qh4 Bb5 32.Rc7 Rec8 33.Rc8 Rc8 34.Nh5 h6 (34...Qg4 35.Qg4 fg4 36.Nf4+=) 35.Nf4 Qf7 36.Rb1 (36.Qg3 Rc2=) 36...g5 37.Qg3 (worse is 37.Qh6 gf4 38.ef4 Bd3–/+) 37...Kh8 (37...Kf8 38.Nh3=) 38.Nh3 f4 (38...Qc7 39.Kh1 Bd3=) 39.ef4+= Qf5 The mate threat is Qxb1 40.Ra1 (40.Qb3 Qd3 41.Qd3 Bd3–+) 40...g4 41.Qh4 gh3 42.Qh6 Kg8 43.gh3 (43.Qg5 Qg5 44.fg5 Kg7 45.gh3 Kg6–+) 43...d4 44.f3 Be8 45.Qg5 Qg5 (45...Bg6 46.h4–/+) 46.fg5 d3 47.Kf2 (47.Rd1 Bb5 48.Kg2 Rc2 49.Kg3 Rb2–+) 47...Rc2 48.Ke3 Bb5 49.Kd4 0–1. bambinik – rehcsifybbob, internet, 2001.

3.e3 e5 4.b5 c6 5.a4 Be6 6.Bb2 Bd6 7.Qc2 Nf6 8.Bc4 Bc4 9.Qc4 0–0 10.Nc3 Qd7 11.Nf3 Qf5 12.Ne2 a6 (better is 12...e4!? 13.Nfd4 Qg6+=) 13.Ng3+= Qd7 14.b6 Re8 15.a5 c5 16.0–0 h6 17.Ne4 Ne4 18.Qe4 e5 draws heavy fire 18...Nc6 19.Rfc1 Rac8 20.Ba3 (better is 20.d3!?=) 20...Na5–/+ 21.Qd5?? (21.Rab1!?–/+) 21...Qc6 (better is 21...e4 22.Kh1 ef3–+) 22.Qc6 Rc6 (worse is 22...bc6 23.Bc5 Bc5 24.Ra5 (24.Rc5? Nb3 25.Rac1 Rb8–+) 24...Bb6 25.Ra6+=; 22...Nc6?! 23.Bc5 Bc5 24.Rc5+=) 23.Rab1 f6 (better is 23...e4!? 24.Ne1 Rd8–+) 24.d4–/+ ed4 25.ed4 c4 26.Bd6 Rd6 27.Rb4 Rc8 28.Ra4 Nb3 29.Rac4 Rc4 30.Rc4 Rb6 31.g3 Kf8 32.Rc2 (32.Rc8 Kf7 33.Rc7 Kg6–/+) 32...Ke7 (32...Rd6 33.Rb2 Na5 34.Kf1–+) 33.Rb2 (better is 33.Rc7!? Ke6 34.Rg7–/+) 33...a5–+ 34.Nd2 a4 35.Nc4 Rb4 36.Re2? (36.Ne3 Kd8 37.Nc2–+) 36...Kd8 37.Nd6 Nd4 38.Rd2 (38.Re3 Kd7 39.Ne4–+) 38...Nf3 (38...Nf3 39.Kf1 Nd2 40.Ke2 a3 41.Nf7 Kd7 42.Kd2 a2–+) 0–1. Pruvost,Alain (1630) – Desbouvries,Gauthier, Bethune op–B, 2004.

3.e3 Bf5 4.Bc4 Bb1 5.Rb1+= e6 6.Nf3 Nc6 7.a3 g6 8.Bb2+– f6 9.Be6 Bg7 10.Ng5! Nh6 11.Qb3 Qe7 12.Nf3 Nd8 13.Bd5 c6 14.Bc4 Ndf7 15.0–0 0–0 16.Rfe1 Kh8 17.a4 Nd6 18.d3 Nc4 19.Qc4 Nf5 20.Bd4 Nd4+/– 21.Nd4 Rfe8 22.Nf3 Qe6 23.Nd4 Qc4 24.dc4+/– f5 25.f4 Bd4 26.ed4+/– Kg7 27.Kf2 Rad8 28.Re8 Re8 29.g3 Kf6 30.a5 h6 31.h4 g5 32.hg5 hg5 33.Re1 Re1 34.Ke1 g4 35.Kd2 Ke6 36.Kd3 b6 37.b5?? cb5= 38.ab6 bc4=+ 39.Kc4 ab6 40.Kd3 Kd5 41.Kc3 b5 42.Kd3 b4 43.Ke3 b3 44.Kd3 b2 45.Kc2 Kd4 46.Kb2 Ke3 0–1. wlittle (2300) – tomy (2215), net–chess.com, 2004.

3.e4 b5 4.d3?? e5?? (4...Qd4 5.Nc3 Qc3 6.Bd2–+ Qb2 7.Qc1 Qc1 8.Rc1 Nf6 9.e5–+) 5.a4? (better is 5.a3 Nf6 6.Qc2–/+) 5...Bb4 (5...Qd4!? 6.Ra2 Bb4 7.Ke2–+) 6.Bd2 Bd2 (6...Qd4!? 7.Bb4 Qa1 8.ab5–+) 7.Qd2 c6 (better is 7...Qd4 8.Ra3 Nf6 9.ab5 Ne4–+) 8.Qb4? (8.Nf3 cd3 9.ab5 Bg4–/+) 8...Bd7 (better is 8...Qd4 9.Ra2 Na6–+) 9.ab5 cb5 10.dc4 bc4 11.Bc4 Nf6 12.Nc3 Nc6 13.Qb3 0–0 14.Nd5 (better is 14.Nge2!?–/+) 14...Ne4–+ 15.Qd3 (15.Nf3 Nd6 16.0–0 Na5 17.Ra5 Qa5 18.Ne5 Nc4 19.Qc4 Be6 20.Ne7 Kh8–+) 15...Nc5 (15...Bf5!? 16.Qe2–+) 16.Qa3 Ne6 17.Nf3 e4 18.Nd2 Ne7?? (better is 18...Ned4 19.Ne3 Re8–+) 19.Ne7+– Kh8 20.Be6 (better is 20.Bd5!? Rb8 21.Be4+–) 20...Be6 21.Ne4 (better is 21.Qc5+/–) 21...Re8+= 22.Ng5?? (22.Ng6 fg6 23.Nd6 Bc4 24.Ne8 Qe8 25.Qe3 Qb5–+) 22...Re7?? (better is 22...Bc4 23.f3 Re7 (23...Qe7?! 24.Qe7 Re7 25.Kf2–/+) 24.Ne4 f5–+) 23.0–0–/+ Qe8 24.Ne4 (24.Qd3 Qg8+=) 24...Rd8–/+ 25.Nd6 Qf8 26.Rad1?? (better is 26.Qa6–/+) 26...Red7–+ 27.Nf7 Qf7 28.Rde1 (28.Rd7 Qd7 29.h3–+) 28...Bc4 29.h3 Bf1 30.Rf1 h6 31.Qa5 Rd1 32.f3 (32.Qc5 a5 33.Qc2 Qh5–+) 32...Rf1 (32...Qc4 33.Rd1 Rd1 34.Kf2 Qh4 35.Ke2–+) 33.Kf1 Qc4 34.Kg1 (34.Kf2 Qc2 35.Kg3 Rd2 36.Qd2 Qd2–+) 34...Rd1 35.Kh2 (35.Kf2 Qh4 36.Ke2–+) 35...Qf4 36.g3 Rd2 (36...Qf3 37.Qd8 Rd8 38.h4 Rd1 39.h5 Qh1) 37.Qd2 Qd2 0–1. RisingFast – delightful_porridge, ChessWorld.net, 2016.

3.e4 e5 4.Bc4 Nf6 5.d3? Bb4 6.Bd2–/+ Bd2 7.Nd2 0–0 8.Ngf3 Nc6 9.Ng5 Nd4 10.Nb3 Nb3 11.Qb3–/+ Qe7 12.0–0 c6 13.a4 Nd7 14.f4=+ ef4 15.Nf7 Rf7 16.Bf7?? Kh8?? 17.Rf4+– Nf6 18.Bc4 Bd7? 19.Qb7 Rf8 20.Raf1 Qc5 21.Kh1 Bc8 22.Qb3 h6 23.Be6 Be6 24.Qe6 Re8 25.Qf5 Qe7 26.Qg6 Rc8 27.d4 Rb8 28.e5 Nd7 29.Rf7 Qf7 30.Rf7 Nf8 31.Qg7# 1–0. bvboucher (2190) – wmalone (2155), net–chess.com, 2009.

3.g3 b5 4.Bh3? (better is 4.Bg2!? c6 5.a4=+) 4...Bh3–+ 5.Nh3 Qd7 6.Ng5 Qd5 (better is 6...e6–+) 7.f4?? (better is 7.Nf3–/+) 7...Qh1–+ 8.Kf2 Qd1 9.Nc3 Qc2 (better is 9...Qh1!? 10.Nf3 Nh6 11.h3–+) 10.Nb5 Na6 11.a4 e6 12.Na3 Qa4 0–1. dbennett – chall, net–chess.com, 2001.

3.g3 e5 4.Bg2 –/+.

3.Bb2 b5

4.a4 Na6 A) 5.Na3 Nf6 (5...Nb4 6.ab5 Qd5 7.Bc3 Qc5 8.Nf3 Nf6 9.Bd4 Qd5 10.Qa4 e6) 6.ab5 Nb4 7.Nc4 Qd5 8.Qb3 e6 9.Nf3 Bd7 10.e3 Ne4; B) 5.ab5 Nb4 6.Qa4 e6 7.Nf3 Nf6 8.Na3 Qd5 9.Ne5 Ne4 10.b6 c6.

4.a4 c5 5.bc5 (5.Qc2 Na6 6.ab5 Nb4 7.Qc4 Nf6 8.Nf3 Bb7 9.Na3 Ne4 10.Qb3 f6) 5...b4+= 6.Qc2 Ba6 7.e4 b3 8.Qc3 e6 9.Bc4 Qh4 10.Qd3 Bc4.

4.a4 Nc6 5.ab5 Nb4 (5...Nd4 6.Bd4 Qd4 7.Nc3 Qd6 8.e3 Nf6 9.Bc4 Qb4 10.Ra4 Qd6) 6.Qa4 e6 7.Na3 Qd5 8.Nf3 a6 9.ba6 Bd7 10.Qd1 Ra6.

4.a4 Nf6 5.ab5 Qd6 6.Nc3 Nbd7 7.Nf3 Bb7 8.e3 Nb6 9.Nd4 g6 10.Nc6 Bc6.

4.Nc3 a6 (4...a5 5.Nb5 (5.a3 c6 6.Nf3 Nf6 7.ba5 Ra5 8.g3 Na6 9.Ne5 Ng4 10.Ng4 Bg4) 5...ab4 6.e3–/+ c6 7.Qf3 Nh6 8.Nd4 Qd5 9.Nge2 Qc5 10.Qe4 Nf5) 5.e4 (5.a4 c5 6.bc5 b4+= 7.Ne4 Qd5 8.Qc2 Bb7 9.Ng3 Nd7 10.e4 Qc5) 5...Bb7 (5...Nc6 6.a3 (6.Nf3 Nb4 7.a4 Rb8 8.ab5 ab5 9.Be2 Nf6 10.0–0 Nd3) 6...Nf6–/+ 7.Nf3 Bg4 8.Be2 g6 9.e5 Bf3 10.Bf3 Ne5) 6.f4? (better is 6.Nf3!? Nc6 (6...Qd6 7.a3 Nc6 8.Be2 Nf6 9.0–0 0–0–0 10.Qe1 Ne5) 7.a3= (7.a4 Nb4 8.ab5 ab5 9.Ra8 Ba8 10.Nb5 Be4) 7...Nf6 8.d3 cd3 9.Bd3 e5 10.0–0 Bd6; 6.d3 a5 7.dc4 ab4 8.Qd8 Kd8 9.Nb5 Be4 10.Nf3 Nd7) 6...e6 (6...Nc6 7.a3–/+) 7.Nf3 (7.d3 c5 8.dc4 cb4 9.Qd8 Kd8–+) 7...Nf6–+ 8.Be2 (8.a4 Ne4 9.Ne4 Be4–/+) 8...Bb4 9.Qc2 (9.a4 Bc3 (9...Be4?! 10.Ne4 Ne4 11.ab5 Nd2 12.Nd2–/+) 10.Bc3 Ne4–+) 9...Nbd7 (9...Bc5 10.d4 cd3 11.Bd3–+) 10.0–0 0–0 (10...Bc5 11.Kh1–+) 11.e5 Nd5 12.Nd5 Bd5 (12...ed5?! 13.Ng5 g6 14.e6–/+) 13.d4 (13.Rad1 Qe7–+) 13...c6 (13...f5 14.a3 Ba5 15.Bc3–+) 14.Ng5 Be7?? (better is 14...g6–+) 15.Qh7 1–0. blackdahlia – Cocodiabolo, ChessWorld.net, 2010.

3.Qc2 Nf6

4.Qc4 Nc6 5.e3 (5.Nf3 Be6 6.Qh4 Bg4–/+) 5...e5 (5...Be6 6.Qc2–/+) 6.a3–/+ Be6 (6...Bd6 7.Nf3–/+) 7.Qc2 a6 (7...Qd7 8.Nc3–/+) 8.Bb2 Be7 (8...Qd7 9.Nf3 Bf5 10.Qa4+=) 9.Nf3 Qd6 10.Nc3 0–0 (10...Qd7 11.Be2=) 11.Be2 (11.Ng5 Rfd8 12.Rd1 Bg4=) 11...Bd5 (11...Qd7!?+=) 12.Nd5+= Nd5 13.d4 Bf6? (better is 13...ed4!? 14.Nd4 Nd4 15.Bd4 a5=) 14.de5+/– Ne5 (14...Be5 15.Ne5 Ne5 16.Rd1+/–) 15.Ne5 (15.Be5 Be5 16.Rd1 Qe6+/–) 15...Be5= 16.Be5 Qe5 17.Rc1 c6 (17...Rad8 18.Bf3=) 18.0–0 Rad8 19.Bf3 Rd7 20.Qb3 Rfd8 21.Rfd1 g6 22.g3 h5 23.h4 Nf6 24.a4 (24.Rd7 Rd7 25.Rd1 Rd1 26.Qd1 Kg7=) 24...Qf5 (24...Ne4 25.Rd7 Rd7 26.Be4 Qe4 27.b5=) 25.Kg2= Ng4 26.e4 (26.Rd7 Qd7 27.Rc5 Qd2 28.Bg4 hg4=) 26...Qe5 (26...Qf6 27.Qc2+=) 27.Rd7 (27.Rc5 Qf6 28.Bg4 hg4 29.Rd7 Rd7=) 27...Rd7+= 28.Qc3 Qd4 29.Qd4 Rd4 30.b5 Ne5 31.ba6 ba6 32.a5 Ra4 (better is 32...Rd2+=) 33.Rc5 (better is 33.Be2!?=) 33...Nd3–/+ 34.Rc3 (34.Rc6 Ne1 35.Kf1 Nf3–+) 34...Ne1 35.Kf1 Nf3 36.Rf3 Ra5 37.Rc3 c5 38.Ke1 (38.Ke2!?–/+) 38...Kf8 0–1. Ivanets,Vladimir – Saveliev,Alexey, 5th Cup Governov B, 2009.

4.Qc4 Nc6 5.e3 e5 (5...Be6 6.Qc2 g6 7.Nf3–/+) 6.a3–/+ Be6 7.Qc2 Be7 (7...Qd7 8.Nc3–/+) 8.Nf3+= Qd6 ½–½. Ivanets,Vladimir – Kabanova,Ekaterina, 5th Cup Governov B, 2009.

4.Qc4 Nc6 5.Nf3 a5 6.b5 Nb4 –/+.

4.Qc4 Nc6 5.Nf3 Be6 6.Qh4 Bg4 –/+.

3.e3 a5

4.ba5 Be6 +=.

4.Bc4 ab4 5.d4 Nf6 6.Nf3 e6 (6...Bf5 7.0–0–/+) 7.0–0 b6 (7...Be7 8.Ne5–/+) 8.a3 Bb7 9.Bb2 Nbd7 10.Qb3 (10.Qe2 Bd5+=) 10...ba3 (10...Bf3 11.gf3 Nd5 12.f4–/+) 11.Na3 Be7 (11...Bf3 12.gf3 Nd5 13.Nb5 Ra1 14.Ra1+=) 12.Ne5+= 0–0 13.Be6? (better is 13.Nb5+=) 13...fe6–+ 14.Qe6 Kh8 15.Nc6 Qe8 (15...Bc6 16.Qc6 Bd6 17.Nc4–+) 16.Qe7 (16.Ne7 Bd5! 17.Qd5 Nd5 18.Nd5 Ra7–+) 16...Bc6 17.Qe8 Rfe8 18.Rfe1 (18.Rfc1 Nb8–+) 18...Ba4 (18...b5 19.f3–+) 19.Rab1 (19.f3 Kg8–+) 19...c5 (19...Kg8 20.f3–+) 20.Nc4 (20.dc5 bc5 21.f3 Reb8–+) 20...b5 (20...Bc6 21.Ba1 b5 22.Nd6–+) 21.Nd6 Re6 (21...Reb8 22.e4 Ne8 23.Ne8 Re8 24.e5–+) 22.dc5 Nc5 23.Nf5 (23.Nb5 Bb5 24.Bf6 Nd3–+ (worse is 24...gf6 25.Rb5 Nd3 26.Rd1–/+; 24...Rf6?! 25.Rb5 Nd3 26.Reb1–/+)) 23...Nd3 (23...b4 24.Bf6 gf6 25.Nd4–+) 24.Re2 Nb2 (24...b4 25.Rd2 Nb2 26.Rdb2–+) 25.Nd4 (25.Reb2 Nd5–+) 25...Rb6 (25...Nd1 26.Ne6 Nc3 27.Ree1 Nb1 28.Rb1–+) 26.Rbb2 (26.Reb2 Kg8–+) 26...Rab8 (26...b4 27.Re1–+) 27.Kf1 (27.f3 b4–+) 27...Nd5 Black plans b4 (27...b4 28.Ke1–+) 28.Ke1 (28.Red2 b4–+) 28...h6 (28...b4 29.Red2–+) 29.f3 (29.Red2 b4–+) 29...Nc3 30.Red2 b4 31.e4 Be8 (31...Kg8 32.e5–+) 32.g3 (32.e5 Bf7 33.Nf5 Na4–+) 32...Bg6 (32...Ra6 33.Nb3–+) 33.Rd3 (33.h4 Bf7–+) 33...Na4 34.Rb1 (34.Ra2 Nc5 35.Rdd2 b3–+) 34...Nc5 (34...Bf7 35.Nb3–+) 35.Re3 (35.Rd2 b3 36.Ne2 Bf7–+) 35...Bf7 Black prepares the advance b3 36.f4 (36.Nf5 Ba2 37.Rb2 b3–+) 36...b3 37.e5 b2 38.e6 (38.Ra3–+) 38...Ne6 (worse is 38...Be6 39.Ne6 Ne6 40.Rd3–+) 39.Ne2 Bg6 (better is 39...Nc5!? 40.f5–+) 40.Rb2 Rb2 41.Re6 Bh5 42.Nc3 (42.h3–+) 42...Rh2 43.g4 Bg4 44.Re7 0–1. Lindberg,Rune – Schwenteck,Carsten, MCO, 1996.

4.Bc4 ab4–/+ 5.Nf3 Nf6 6.Bb2 Nc6 (6...e6 7.0–0–/+) 7.0–0 Bf5 (7...Bg4 8.d3–/+) 8.d4 (8.a3 e6–/+) 8...e6 9.Nbd2 Be7 10.Re1 Ne4 11.Ne4 Be4 12.Nd2 Bd5 13.e4 Bc4 14.Nc4 0–0 (14...b5 15.Ne3 Bf6 16.Qc1 Nd4 17.Bd4 Bd4 18.Qc6 Ke7 19.Rad1=) 15.d5 ed5 16.ed5 Na5 17.Ne3 (17.Qg4 Bf6 18.Bf6 Qf6 19.Na5 Ra5 20.Qb4 Rd5 21.Qb7 Rd2=) 17...Bf6 18.Bf6 (18.Qc2 Bg5=) 18...Qf6 19.Qc2 c6 (19...c5 20.Rad1 b6 21.d6+=) 20.Rad1 Rfd8 21.Qe4 (21.Nf5 Kh8 22.Ne7 Qf4=) 21...c5+= 22.Nf5 g6 23.Nh6 Kg7 24.Ng4 Qf5 Exerts pressure on the isolated pawn 25.Qe2 Re8 (25...Rd5? 26.Ne3 Qh5 27.Nd5 Qe2 28.Re2+–) 26.Ne3 (26.Qb2 f6 27.Re8 Re8+=) 26...Qd7 27.f3 (27.Rc1!? Rac8 28.Qd2–/+) 27...b5–/+ 28.Qc2 Qd6 29.Qd3 Qf4 (29...c4 30.Qd4 f6 31.Re2–/+) 30.Qd2 Nc4 31.Nc4 Re1 32.Qe1 bc4 (worse is 32...Qc4 33.Qe5 Kg8 34.d6=) 33.d6 c3 34.Qe2 Rd8 35.g3 Qf6 (35...Qf6 36.d7 Qe6–+) 0–1. Bischof,Gunther – Koser,Erich Rudolf, corr, 1992.

3.e3 b5

4.a4 c6 5.ab5 cb5? 6.Qf3+– Nc6 7.Qc6 Bd7 +–.

4.a4 c6 5.ab5 cb5 6.Qf3 Qc7N 7.Qa8 Nc6 (7...a6 8.Bb2 e5 (8...e6 9.Qf3+– Nc6 10.Qd1 Nf6 11.d3 Bb4 12.Nc3 Ne5 13.dc4 Nc4+–; 8...Qb7 9.Qb7 Bb7 10.Bc3 e5 11.Na3 Nc6 12.Nc2 Nf6 13.Nf3 Bd6+–) 9.Bc3 Bd6 10.Qf3 Nc6 11.Qg3 f6 12.Be2 Nh6 13.Nh3 Nb4+–) 8.Ra6 (better is 8.Nc3 e6 (8...Nb4 9.Ra7 Qc5 10.Nb5 Kd8 11.Rc7 Qf5 12.e4 Qe6 13.Rc4 Nd5+–; 8...a6 9.Ra6 Nb4 10.Ra7 Qc5 11.Nb5 Qc6 12.Qb8 Nc2 13.Kd1 Kd8+–; 8...Qb7 9.Qb7 Bb7 10.Nb5 Kd7+– 11.Nd4 Nd4 12.Ra7 Nb3 13.Rb7 Kc8+–) 9.Nb5 Qb7 10.Qb7 Bb7 11.Bc4 Kd8 12.Nf3 a6 13.Nbd4 Nb4+–) 8...Kd7? (8...Qb7 9.Qb7 Bb7 10.Ra2+– e6 11.Ba3 Nf6 12.Nf3 a6 13.d3 Bb4+–) 9.Qc6! Qc6 10.Rc6 Kc6 11.Nf3 Nf6 12.Ne5 Kb6 13.Nf7 Rg8 14.Bb2 Bf5 15.Nc3 e6 16.Na2 Nd5 17.Bc3 g6 18.Ne5 Nc3 19.dc3 Bg7 20.Nc4 bc4 21.Bc4 Rc8 22.Be2?? (better is 22.Bb3 Bc3 23.Ke2+/– (worse is 23.Nc3 Rc3 24.Bd1 Kb5+=)) 22...Bb1–+ 23.0–0 Ba2 24.Ra1 Bd5 (better is 24...Bc4!? 25.Bc4 Rc4 26.b5 Rc3 27.Kf1–+) 25.Ra6 Kb7 26.e4 Bc4 (26...Be4?! 27.Re6 Bc6 28.c4–/+) 27.Bc4 Rc4 28.Re6 Rc3 29.f3 Bf8 30.b5 Rb3 31.Re8 Bc5 32.Kf1 Rb5 33.Rh8 h5 34.Rg8 Rb1 35.Ke2 Rb2 36.Kd3 Rg2 37.e5 Rh2 38.Rg6 Rh4 39.Rg7 Kb6 40.Rf7 a5 41.e6 Rd4 42.Kc3 Rd8 43.Rh7 Re8 44.Rh5 Re6 45.Kc4 Rc6 46.Rh1 a4 47.Rb1 Kc7 48.Rb5 Bd6 49.Kd3 a3 (49...a3 50.Ra5 Rc1–+) 0–1. Pruvost,Alain (1645) – Podvin,Antoine, 10th La Fere Open, 2011.

4.a4 c6 5.ab5 cb5? (better is 5...Be6 6.Qa4 cb5 7.Qb5 Nd7+=) 6.Qf3+– e6? (better is 6...Nc6 7.Qc6 Bd7+–) 7.Qa8 Nd7 (7...Bd7 8.Qa7 Bb4 9.Bb2+–) 8.Ra7 Bb4 (8...Nb6 9.Qc6 Bd7 10.Rd7 Nd7 11.Qb5+–) 9.Qc6 (9.Ba3 Be7 10.Qc6 Bf6+–) 9...Ngf6 10.Ba3 Ba3 11.Na3 0–0 (11...b4 12.Nc4 0–0 13.d4+–) 12.Nf3 (12.Qb5 Nb6+–) 12...Qb6 (12...b4 13.Nc4 Nd5 14.e4+–) 13.Qb6 Nb6 14.Nb5 Bd7 (14...Ne4 15.Rc7+–) 15.Nd6 Rd8 (15...Bc6 16.Ne5 Bd5 17.f3+–) 16.Ne5 1–0. orane – maze, caissa.com, 2006.

4.a4 c6 5.ab5 Be6 6.Qa4 cb5 7.Qb5 Nd7 +=.

4.a4 Nc6 5.ab5 Nb4 6.Bc4 =.

2.c4 d4

3.Qa4 Bd7+= 4.b5 e5 (4...Bf5 5.Nf3 Nd7 6.Nh4 Nc5 7.Qa5 Be4 8.d3 e5 9.Nf3 Bf3 10.ef3+=) 5.g3 (5.Nf3 Bd6 (5...Qf6+= 6.e4 Qf4 7.Qc2 Bb4 8.Be2 Nf6 9.0–0 Qg4 10.Re1=) 6.Ba3 c5 7.bc6 Bc6 8.Qb3 Nf6 9.e3 0–0 10.c5+=) 5...Na6 6.Ba3 (6.Bg2 Nc5 7.Qc2 d3 8.Qc3 Qf6 9.Bb2 Bd6 10.Nf3–/+) 6...Nc5 7.Qc2 c6 (7...Qf6 8.Bg2 d3 9.Qc3 0–0–0 10.e3–/+) 8.Bg2 (8.Nf3 f6 9.e3 de3 10.de3+=) 8...Qc7 (8...Qf6 9.bc6 Bc6 10.Bc6–/+) 9.Bc5 (9.bc6 Bc6 10.Bc6 Qc6–/+) 9...Bc5–/+ 10.a4 a6 11.ba6 (11.bc6 Bc6 12.Bc6 Qc6–/+) 11...Ra6 12.Be4 (12.Nf3 Nf6–/+) 12...Nf6 (12...Ne7 13.Bg2–/+) 13.Nf3 0–0 14.0–0 (14.Bd3 Ra5–/+) 14...Re8 (better is 14...Ne4 15.Qe4 f6–/+) 15.Bf5? (better is 15.Ng5 Ne4 16.Ne4–/+) 15...e4–+ 16.Bd7 (16.Nh4 Bf5 17.Nf5 Qd7–+) 16...Qd7 (16...Nd7?! 17.Ne1–/+) 17.Nh4 (17.Ng5 Qg4 18.Nh7 Nh7 19.d3–+) 17...Qh3 (17...Qh3 18.f3 d3 19.e3 dc2–+) 0–1. Pruvost,Alain – Wolfangel,Florence, 22nd Open, Bethune FRA, 2001.

3.c5 e5 4.e3 a5 5.ed4? (better is 5.Ba3!? ab4 6.Bb4 de3 7.de3 Qd1 8.Kd1 Bg4 9.f3–/+) 5...Qd4–+ (5...ab4?! 6.Nf3 ed4 7.Qe2 Be6 8.Qb5 Nc6 9.Qb7–+) 6.ba5?? (better is 6.Nc3 ab4 7.Nb5 Qc5 8.d4 ed4 9.Bf4–+) 6...Qa1 7.Nc3 (7.Ba3 Nd7 8.c6 bc6 9.Bf8 Nf8–+) 7...Ra5 8.Nf3 Nc6 (8...Rc5 9.Be2 Nf6 10.0–0–+) 9.Be2 (9.Bb5 f6–+) 9...Ra2 (better is 9...Bc5 10.0–0 Be6 11.Bb5–+) 10.Na2 Qa2 11.0–0 Bc5 12.Bb5 Nge7 13.Ne5 0–0 14.Bc6 Nc6 15.Nc6 bc6 16.d4 Bd6 17.Be3 Qd5 18.Qa1 Bb7 19.Qa7 (19.f3–+) 19...c5! 20.dc5 (20.dc5 Qg2 Mate attack) 20…Qg2# 0–1. Baron wd von Blanc – diggerdogwoofwoof, ChessWorld.net, 2011.

3.e3 de3 4.fe3 e5 5.Qg4?? Bg4–+ 6.h3 Qh4 7.g3 Qg3# 0–1. idontknow – cruciverbalist, net–chess.com, 2006.

3.Nf3 a5 4.Bb2 (4.Qa4 Bd7 5.b5 Bg4=) 4...ab4+= 5.Nd4 e5 6.Nf3 (6.Nb3 Nd7+=) 6...e4 7.Nd4 Nc6 (7...Be7 8.e3+=) 8.Nc6= bc6 9.Qc2 (9.a3 ba3 10.Na3 Be6=) 9...Nf6+= 10.g3 (10.Bf6 Qf6 11.Qe4 Kd8–/+) 10...Bf5 11.Bg2 Bc5 12.0–0 0–0 (12...Bd4 13.e3 Bb2 14.Qb2=) 13.e3 (13.a3 Bd4+=) 13...Ra5 (13...Re8 14.a3+=) 14.a3= ba3 15.Qc3 Bb6 (15...Ra8 16.Ba3 Qe7 17.f3=) 16.Ba3 (16.Ra3 Ra3 17.Qa3 Nd7+=) 16...c5= 17.Bb2 Ra1 18.Ba1 Qe7 (18...Re8 19.Qb3=) 19.f3+= Rd8 (19...ef3 20.Bf3 Rd8 21.e4+=) 20.fe4 (20.Qc1 Ne8+=) 20...Be4= 21.Be4 Qe4 22.Qb3 Ng4 23.Rf4 Qe6 24.Qb2 (24.Qc2 Ba5 25.Bc3 Bc3 26.Nc3 Ne5=) 24...f6= 25.Nc3 (25.Qc2 Ba5 26.Qe4 Qe4 27.Re4 h5+=) 25...Ne5+= 26.Qc2 (better is 26.Qa2+=) 26...g5 (better is 26...Ng6!? 27.Rf2 Qc4+=) 27.Rf2 (27.Rf1 A) 27...Nc4? 28.Ne4 Nd2 29.Nf6 (worse is 29.Nd2 Qe3 30.Rf2 Qe1 31.Kg2 Qa1–/+) 29...Kf8 30.Rf2+–; B) 27...Qc4 28.Qf5 Qf7+– (28...Rd2?? 29.Ne4 Qf1 30.Qf1+–)) 27...Nd3+= (27...Nc4? 28.Ne4 Ra8 29.Nf6 Kf8 30.Nh7 Ke7 31.Bf6 Kd7 32.Ng5+–) 28.Rf1 (28.Nd5 Nf2 29.Nf6 Kf8 30.Nh7 Kg8 31.Ng5 Qh6+/–) 28...Nb4 (28...Qc4 29.Rf6 g4 30.Qd1+/–) 29.Qb2 (29.Qe4 Re8 30.Qf3 c6+–) 29...Nd3 30.Qb3 Nb4 31.Nd5 (31.Qb1!? Re8 32.Qd1+/–) 31...Nd5= 32.cd5 Qd5 33.Qc3 (33.Qd5 Rd5 34.Bf6 c4=) 33...Qd2 34.Qf6 Do you see the mate threat? 34...Qe3 35.Kg2 The mate threat is Qg7 35...Rd2 36.Kh3 g4 37.Kg4 Qe4 38.Rf4 Qg6 39.Qg6 hg6 40.h4 (40.Kg5!? Rh2 41.Kg6+=) 40...Ba5+= 41.Rf6 (41.Re4 Rd1 42.Bb2 Rb1+=) 41...Rd6 42.Kg5 (42.Rf4 Bd2 43.Re4 Kf7+=) 42...Rf6–/+ 43.Kf6 Kh7 44.g4 (better is 44.Ke5–/+) 44...c4?? (better is 44...Be1–/+) 45.g5+/– White threatens strongly Kf7 45...Kg8 46.Kg6 Be1 47.h5 White threatens strongly Bg7 47...Bd2?? (47...c3 48.h6 Bd2 49.Kh5+/–) 48.h6 (better is 48.Bf6 Kf8 49.h6+–) 48...c3+/– 49.Kf6 (49.Kh5 c2 50.Kg6 c1Q 51.h7 Kf8 52.h8Q Ke7 53.Qe5 Kd7 54.Qd5 Kc8+–) 49...c6 (better is 49...Kh8!?=) 50.Kg6+/– c5 51.Kf6 (51.Kh5 c2 52.Kg6 c1Q 53.h7 Kf8 54.h8Q Ke7 55.Qe5 Kd7 56.Qd5 Kc7+/–) 51...c4?? (better is 51...Kh8=) 52.Kg6+– Kh8 53.h7 Be1 54.Kf7 Bh4 (54...Kh7 55.g6 Kh6+–) 55.g6 Bf6 56.Kf6 (56.Kf6 c2 57.Kf7 c3 58.Bc3) 1–0. Romanovskiy – Duz_Hotimirskiy (year?).

3.Nf3 f6 4.d3 (4.a3 e5=) 4...e5 5.a3 c5 6.g3 (6.Bd2!?=) 6...cb4+= 7.Bg2 Nc6 8.0–0 a5 9.e3 (9.Bd2 Bd7+=) 9...Bg4 (9...Bc5 10.ed4 Bd4 11.Ra2–/+) 10.h3 Bf3 (10...Bh5 11.g4 Bg6 12.ed4 Nd4 13.Nd4 Qd4 14.Qa4 Qd7 15.Qd7 Kd7 16.ab4 Bb4 17.Bb7+=) 11.Bf3 Bc5 (11...Qd7 12.Kg2+=) 12.Bd5 (12.Qa4 Rc8 13.Qb5 Qb6 14.ab4 ab4+=) 12...Nge7 13.e4 (13.Qg4 Nd5 14.Qg7 Rf8 15.cd5 Rf7 16.Qg8 Ke7 17.Qd8 Nd8 18.ab4 Bb4+=) 13...Nd5–/+ 14.cd5 Ne7 15.Qa4 (15.f4!?–/+) 15...Qd7–+ Black launches an attack 16.Qb3 a4 (16...Qh3 17.Bd2 a4 18.Qc2–+) 17.Qc4 (17.ab4 Bd6 18.Qd1 0–0–/+) 17...Bd6 18.ab4 b5 19.Qa2 (19.Qc2 Qh3 20.Na3 Rb8–+) 19...Qh3 20.Na3 Rb8 (20...Bb4?! 21.Nb5 Qd7 22.Qc4+=) 21.Rb1 (21.Bd2 h5 22.Nb5 Rb5 23.Qa4 Qd7–+) 21...h5 22.Qe2 g5 Black prepares the advance h4 (22...g6 23.Re1–+) 23.Qf3 (23.Rb2 Ng6 24.Qc2 Rb6–+) 23...h4 24.Qg2 Qg4 (24...Qg2 25.Kg2 h3 26.Kh2–+) 25.gh4 (25.f3 Qg3 26.Qg3 hg3–+) 25...Rh4 (better is 25...Qg2 26.Kg2 gh4–+) 26.Qg4? (26.f3 Qh5 27.Bd2–+) 26...Rg4 27.Kh2 Nd5! 28.Nb5 (28.ed5 Kf7) 28...Kd7 29.Kh3 f5 (29...f5 30.ef5 Nf6 31.Bg5 Rh8 32.Bh6 Rh6; 29...Rb5?! 30.Kg4 Nc3 31.Ra1 Rb4 32.Kf5–/+) 0–1. Kortschnoj,Viktor (2615) – Seirawan,Yasser (2600), London, 1984.

3.Nf3 Bg4 4.Bb2 Bf3 5.ef3 c5 6.bc5 Nc6 7.g3 (7.Qb3 Qc7=) 7...e5 8.Bg2 Bc5 9.0–0 Nge7 10.d3 0–0 11.Nd2 f5 12.Rb1 f4 (12...Qd6 13.Bc1+=) 13.Ne4 b6 14.Nc5 bc5 15.Ba3 Qa5 16.Rb3 Rab8 17.Qc1 Rb3 18.ab3 Rb8 19.Qb2 Qc3 20.Rb1 Nb4 21.Bf1 Qb2 22.Rb2 Kf7 23.Rd2 Nec6 24.Rd1 Na5 25.Rb1 g5 26.Be2 h6 27.Kf1 Ke6 28.Bc1 Na2 29.Ra1 Nc1 30.Ra5 Rb3 31.Ra6 Rb6 32.Ra7? (better is 32.Ra1 Ne2 33.Ke2–+) 32...Rb2 (32...Ne2?! 33.Ke2 Rb2 34.Ke1+=) 33.Ra6 Kd7 34.Bd1 Nd3 35.Rh6 Rf2 36.Kg1 Rd2 (36...Ra2!? 37.Rh7 Kc6 38.Rh6 Kb7 39.gf4–+) 37.Ba4 Ke7 38.Rh7 Ke6 39.Rh6 Kf7 40.Rc6 (40.Bc6 Rd1 41.Kg2 Kg7–+) 40...g4! 41.fg4 (41.Rc7 Kf6 42.Bc6 Rd1 43.Kg2 gf3 44.Kf3 Re1 45.gf4 e4 46.Kg4 Rg1 47.Kh4 Rf1–+) 41...f3 42.Rc7 Kf6 43.Rc6 Kg5 44.h4 Kg4 45.Rg6 Kf5 46.h5 (46.Rg8 Ke4 47.Rf8 Ke3–+) 46...Rg2 47.Kf1 Rh2 48.Bd7 Ke4 49.Bc6 Ke3 (49...Ke3 50.Bf3 Kf3–+) 0–1. Kushnirov,Juruj (2255) – Nagibin,George (2310), Moscow Rector Cup, 2006.

3.g3 e5 4.Bg2 +=.

3.g3 g6 4.Bg2= Bg7 5.d3 Nf6 (5...Nc6 6.Qa4=) 6.Nf3 c5 (6...0–0 7.0–0=) 7.bc5 Qa5 (7...Nfd7 8.Qa4+=) 8.Nbd2+= White fights for the Initiative 8...Nc6 (worse is 8...Qc5 9.Nb3 Qb4 10.Bd2+/–) 9.0–0 Qc5 10.Nb3 Qb6 (10...Qd6 11.c5 Qd8 12.Bb2+/–) 11.Rb1 Nd7 (11...e5 12.Ba3 Qc7 13.e3 de3 14.fe3+=) 12.Bb2 Can d4 get defended? (12.e3 de3 13.fe3 0–0+=) 12...e5 13.Ba3 Qc7 14.e3 Nf8 (14...de3 15.fe3 f5 16.e4+=) 15.ed4+/– ed4 16.Re1 Be6 (better is 16...Ne6!?+/–) 17.Nc5 b6 18.Na6 (18.Ne6!? Ne6 19.Ng5 Qd7+–) 18...Qd7 19.Ng5 Bf6? (19...Rc8 20.Ne4 (20.Ne6?! Ne6 21.c5 b5+/–) 20...Kd8 21.Nd6+–) 20.Ne4 White prepares c5 (better is 20.Ne6 Ne6 21.Qf3 Be7 22.Qc6 Rc8 23.Qd7 Kd7 24.Be7 Ke7+–) 20...Be7 21.c5 (21.Be7 Ke7 22.Qf3+–) 21...0–0–0?? (better is 21...f5 22.Nd2 b5+–) 22.cb6+– Ba3 23.b7 (23.b7 Qb7 24.Rb7 Kb7 25.Qa4+–) 1–0. Schlenker – Ariaans, Netherlands, 1977.

3.Nf3 c5

4.Bb2 g6 5.e3 (5.bc5 Nc6+=) 5...Bg7 (5...cb4 6.Qa4 Qd7 7.Qd7 Nd7 8.Bd4+=) 6.d3 (6.bc5 Nc6+/–) 6...Nh6 (6...Bf6 7.ed4 cd4 8.Nbd2+=) 7.Nbd2 (7.bc5!? Nc6 8.Nbd2+=) 7...0–0= 8.ed4 (8.bc5? de3 9.Bg7 ed2 10.Qd2 Kg7 11.Qc3 f6–+) 8...cd4 9.g3 (9.Be2 a5=) 9...e5 (9...Bf5 10.Qb3+=) 10.Bg2= a5 (10...Qe7 11.a3=) 11.b5 a4 (11...Re8 12.0–0=) 12.Ba3 (12.0–0 Re8=) 12...Re8 13.0–0 f5 14.Ne1 (14.Qe2 g5+=) 14...Nd7 (14...Qc7 15.Nc2=) 15.Rc1 (15.c5 Bf8 16.Qc1 Nf6=) 15...Nf7 16.Nc2 (16.c5 Nf6=) 16...Bf8 (16...Qb6 17.Nb4=) 17.Bf8 Kf8 18.Nb4 (18.a3 Nc5 19.Nb4 e4=) 18...Nc5 19.Re1 (19.Qe2 e4=) 19...Qd6 20.Rb1 Bd7 21.Bd5 (21.Qe2 Be6=) 21...Rad8 (21...Be6 22.Nf3=) 22.a3 (22.Qf3 Kg7=) 22...Bc8 (22...Be6 23.Bg2=) 23.Rb2 (23.Qf3 Ng5 24.Qg2 Kg7=) 23...Re7 (23...Be6 24.Bg2=) 24.Nf3 Nh6 (24...Be6 25.Rbe2 Bd5 26.Nd5= (worse is 26.cd5 Rde8+=)) 25.Rbe2+= Rde8 26.Qd2 Kg7 27.Qb2 (27.h3 Nb3 28.Qg5 Be6+=) 27...Ng4= 28.Qb1 (28.Qc2 Nf6=) 28...Nf6 29.Kg2 (29.Qc2 A) worse is 29...Nd5 30.Nd5 (30.cd5?! Bd7=) 30...Re6 31.Ng5+–; B) 29...Bd7=) 29...h6 (29...Bd7 30.Qc2=) 30.Qd1 (30.Qc2 g5= (worse is 30...Nd5 31.Nd5 Re6 32.b6+=)) 30...g5 (worse is 30...Nd5 31.Nd5 Re6 32.b6+=) 31.h3 Nh7 (31...g4 32.hg4 fg4 33.Nh4+=) 32.Kh2 (32.Qc2 g4 33.hg4 fg4=) 32...h5 Black intends g4 (32...g4 33.Ng1=) 33.h4 (33.Ng1 g4=) 33...g4 34.Nd2 Nf6 35.Qb1 (35.Qa1 Bd7+=) 35...e4 (35...f4 36.Ne4 Nfe4 37.de4+=) 36.Qa1 (36.Qb2 Nd3 37.Nd3 ed3 38.Re7 Re7 39.Re7 Qe7 40.Qd4 Qa3+=) 36...e3 37.Nf1 Nb3 38.Qb2 (38.c5 A) 38...Nd5? 39.cd6 Na1 40.Nd5+– (40.de7?! Nb4 41.ab4 Nb3+=); B) 38...Nc5?! 39.Qd4 Ne6 40.Qb2=; C) 38...Qc5 39.Bb3 ab3 40.fe3 Bd7–/+) 38...f4–/+ (38...Nd5 39.Nd5 Re5 40.fe3+/–) 39.gf4 Qf4 40.Kg2 (40.Ng3 Nd2 (40...Nd5? 41.Nd5 Qd6 42.Ne7 Qe7 43.Re3 Qh4 44.Kg1 Re3 45.Re3+–) 41.Kg2 Kh7+=) 40...Kg6 (40...Nd5 41.Nd5 Qf3 42.Kg1 ef2 43.Rf2 Re1 44.Rf3 R8e2 45.Qe2 Re2+=) 41.fe3 (41.Ng3 ef2 (worse is 41...Nd5 42.Nd5 Qf3 43.Kh2+=) 42.Rf2 Qg3 43.Kg3 Re1=) 41...de3–/+ 42.d4? (better is 42.Ng3 Nd4 43.Rf1–/+) 42...Nd4–+ 43.Nd3 (43.Ng3 Ne2 44.Qe2 Rf8–+) 43...Nd5 (43...Ne2?! 44.Nf4 Nf4 45.Kg1–/+) 44.Nf4 Nf4 45.Kh1 Nde2 46.Re2 Ne2 47.Qe2 Bf5 48.Ng3 Rd8 (better is 48...Rd7 49.Qf1 Bc2–+) 49.Qf1 (49.Nf5 Kf5 50.Qf1 Ke4 51.Kh2–+) 49...Be4 (49...Bc2!? 50.Qf4 Rd1 51.Kg2–+) 50.Kg1 Rf7 (50...Bc2 51.Nf5 Bf5–+) 51.Qc1 (51.Qe1 Rfd7 52.Qe3 Rd1 53.Nf1 Kf5=) 51...Rfd7 (51...Kh7!? 52.Qe3 Bg6+=) 52.Qe3= Rd1 53.Nf1 Bf3 (53...R8d4 54.Qg5 Kf7 55.Qh5 Bg6 56.Qc5=) 54.Kf2 (54.Qg5 Kf7=) 54...R8d3 (54...Kf7 55.Qf4 Ke8 56.Qe5 Kd7 57.Qf5 Kc7 58.Qh5+=) 55.Qe6 Kg7 (55...Kh7 56.Qf7 Kh8 57.Qh5 Kg7 58.Ne3 R1d2 59.Kg3+/–) 56.Ne3+= Threatening mate... how? 56...R1d2 57.Kg3 Kf8 58.Kf4 (58.Qh6 Kg8+=) 58...Rd4 59.Kg5 Rd6 60.Qe5 With the decisive threat Nf5 60...Kf7 61.Nf5 (better is 61.Qf4!? Ke6 62.Nf5+– (62.Kh5?! R2d3 63.Kg5 R6d4 64.Qf6 Kd7+/–)) 61...Rg6+/– 62.Kf4 The mate threat is Qe7 62...Re2 63.Qc7 Kf8 (63...Kf6 64.Qd8 Kf7 65.Qd7 Kg8 66.Ne7 Re7 67.Qe7+–) 64.Nd6 Threatening mate: Qf7 64...Ree6?? (64...Rd6 65.Qd6 Kf7+–) 65.Qf7 1–0. Verlinskij – Rubinstein, Moscow, 1925.

4.bc5 Nc6 =.

4.e3 de3 5.fe3 cb4 6.a3 ba3+= 7.Na3 (7.d4 e5+=) 7...Nf6 (7...Nc6 8.Bb2+=) 8.Nb5 (8.d4 Nc6+=) 8...Nc6 (8...a6 9.d4+=) 9.d4 e6 (9...a6 10.Bd3+=) 10.Bd3 (10.Be2 a6+=) 10...Bb4 (10...e5 11.de5 Ng4 12.0–0 Nce5 13.Be2=) 11.Bd2= 0–0 (11...Be7 12.e4=) 12.0–0 (12.Bb4 Nb4 13.Na7 b5=) 12...Bd2 (12...Be7 13.Qb1=) 13.Qd2 e5 (13...a6 14.c5=) 14.Bc2 (14.Ne5 Ne5 15.de5 Ng4+=) 14...ed4 (14...Bg4 15.c5+=) 15.ed4= (worse is 15.Nbd4 Re8–/+) 15...Bg4 (15...b6 16.d5 Na5 17.Qf4=) 16.Ng5 (16.Qf4 Nb4 17.Bb1 a5=) 16...h6 (better is 16...Re8 17.Qf4 Be2+=) 17.Rf6+/– Qf6 18.Nh7 Qe7 19.Nf8 Kf8 20.Rf1 (20.Qf4 Qe2 21.Be4 Qc4 22.Bc6 Qc6 23.Ra7 Ra7 24.Na7 Qd7–/+) 20...Bd7 (20...Rd8 21.Rf4 a6–+) 21.c5+= Qg5 (21...Be6 22.Nd6 Rd8 23.Be4 Rd6 24.cd6 Qd6 25.Bc6 Qc6 26.Qf4+=) 22.Qd3 (22.Qf2 Nd8 23.Nd6 Be6+=) 22...Rd8 (22...f6 23.Nd6=) 23.Nd6+= Do you see the mate threat? 23...Be6 (23...Be8 24.Bb3 f6 25.Re1 Nd4 A) 26.Re8?? Re8 27.Ne8 Qc5 (27...Nb3?! 28.Qb3 Qc5 29.Kf1–+) 28.Ng7 Nb3 (28...Kg7?! 29.Qg3 Kf8 30.Qb8 Ke7 31.Qb7 Kd6 32.Qb8 Kc6 33.Qc8 Kb6 34.Qc5 Kc5 35.Bd1–+) 29.Kf1 Qc1 30.Kf2 Qf4 31.Kg1 Qd4 (31...Kg7?! 32.Qd7 Kg6 33.Qe8 Kf5 34.Qc8 Ke4 35.Qb7 Kd4 36.Qb4 Ke5 37.Qb5 Ke6 38.Qb3 Kf5 39.Qd5 Qe5 40.Qd7 Kg6 41.Qg4 Kf7 42.Qc4 Ke7 43.Qb4 Ke8 44.Qa4 Kd8 45.Kf2–/+) 32.Qd4 Nd4–+; B) worse is 26.Ne8 Qc5 27.Qh7 Ne6 (27...Nb3? 28.Kh1 Qe5 29.Qg7 Ke8 30.Re5 fe5 31.Qe5 Kd7 32.Qd5 Kc7 33.Qc4 Kb8 34.Qb3+–) 28.Kh1 Re8–+; C) 26.Qd4+–) 24.Bb3+/– Nd4? (better is 24...Kg8 25.Nf7 Bf7 26.Rf7 Kh8+/–) 25.Nf7+– Qc5 (25...Bf7 26.Rf7 Kg8 27.Rf5 Ne6 28.Be6 Kh8 29.Rg5 Rd3+–) 26.Nd8 Ke7 (26...Bf5 27.Qe3 Ne2 28.Kf2+–) 27.Ne6 (27.Nb7?! Qb6 28.Ba4 Nf5 29.Rf2 Qb7 30.Rf5 Bf5 31.Qf5 Qb6 32.Kf1 Qf6 33.Qf6 Kf6+–) 27...Ne6 28.Kh1 a5 (28...Qe5 29.Qb1 Kd8 30.Re1 Qe1 31.Qe1+–) 29.Re1 (29.Re1 Qd6 30.Re6 Qe6 31.Be6 Ke6 32.Qb3 Ke5 33.Qb7+–) 1–0. Bandza – Cechov, Moscow, 1985.

4.e3 de3 5.fe3 cb4 6.d4 g6 7.Bd3 (7.Qa4 Nc6=) 7...Bg7 8.0–0 Nh6 (8...Nc6 9.Bb2=) 9.Nbd2 (9.a3 ba3 10.Ra3 Bf5=) 9...0–0 (9...Nf5 10.Nb3=) 10.Qe2 Bf5 11.Ne4 Nc6 12.Bb2 (12.Rb1 Qd7=) 12...Qc7 (12...Ng4 13.h3 Be4 14.Be4=) 13.h3 (13.c5 Rfd8=) 13...e5 (13...Rfd8 14.Rab1=) 14.d5+= Be4 Black is in command 15.Be4 f5 16.dc6 (16.Bc2 e4 17.Nd4 Nd4 18.Bd4 Bd4 19.ed4 Qg3+=) 16...fe4–/+ 17.cb7 Qb7 18.Ng5 (18.Ne5? Qc7 19.Ng4 Ng4 20.hg4 Bb2 21.Qb2 Rf1 22.Rf1 Qc4–/+) 18...Bf6 19.h4 (19.Ne6 Rf7 20.Qd2 Qc8+=) 19...Nf5–+ 20.Rad1 (20.Qg4 Bg5 (20...Ne3? 21.Qe6 Kg7 22.Rf6 Rf6 23.Be5+–) 21.Qg5 Qb6–+) 20...Qc6 (20...Rac8 21.Qd2–+) 21.c5 (21.Rf5 gf5 22.Qh5 Bg5 23.Qg5 Qg6 24.Qg6 hg6 25.Be5–+) 21...Qc5 (better is 21...Kh8!?–+) 22.Ne4+= Qe3 23.Qe3 Ne3 24.Nf6 Rf6! 25.Rf6 Deflection from d1 25...Nd1 26.Be5 Re8 27.Bd4 Re2 (27...a5 28.Rf3 Rc8 29.Rd3–+) 28.Ra6 Nc3 Black gets deadly initiative 29.Ra7 Ra2 (29...Na2?! 30.Rg7 Kf8 31.Rh7+=) 30.Rg7 (30.Ra2 Na2 31.Kf2 Kf7–/+) 30...Kf8 31.Kh2 Nb5 32.Bf6 (32.Be5 Re2 33.Bf6 Re6–/+) 32...Ra7–+ 33.Ra7 Na7 34.Kg3 Kf7 35.Bh8 Nb5 36.Kf4 (36.Kf3 Nd6–+) 36...Nd6 37.Ke5 (37.Kf3 Nf5 38.h5 Nh4 39.Kg3 Ng2 40.hg6 Kg6 41.Kg2 Kg5–/+) 37...Nf5 38.h5 b3 39.hg6?? (better is 39.Ke4–+) 39...Kg8 (39...Kg8 40.Ke4 Kh8–+; 39...Kg6?! 40.Ke4–+; 39...hg6?! 40.Ke4–/+) 0–1. Seiravan – Nikolic,Z (2485), Sarajevo, 1987.

4.e3 de3 5.fe3 e6 6.bc5+= Bc5 (6...Qa5 7.Nd4+=) 7.d4 Bb4 8.Bd2 Bd2 (8...Be7 9.Bd3+=) 9.Nbd2 (worse is 9.Kd2 Nf6=) 9...Ne7 (9...Nc6 10.Bd3+=) 10.Bd3+/– Nf5 (10...Nbc6 11.0–0+/–) 11.Qe2 Nc6 12.0–0 Nce7 (12...0–0 13.c5+/–) 13.Nb3 Ng6 14.g3 (14.Rad1 Rb8+/–) 14...b6 (14...0–0 15.Rad1+/–) 15.e4 (15.c5 0–0+/–) 15...Nh6 16.e5 (16.c5 0–0+/–) 16...Bb7 17.Rad1 (17.c5 Rc8+/–) 17...0–0+= 18.d5 b5 (18...ed5!? 19.cd5 Rc8 20.Bg6 hg6+/–) 19.de6 Qb6 (19...Bf3 20.ef7 Nf7 21.Rf3 (worse is 21.Qf3 Nfe5 22.Qd5 Qd5 23.cd5 Nd3 24.Rd3 Rf1 25.Kf1 Ne5+=) 21...Nfe5 22.Rf8 Qf8 23.cb5 Nd3 24.Qd3+/–) 20.c5 (20.Nfd4 bc4 21.Bc4 fe6 22.Be6 Kh8 23.Rf8 Rf8+/–) 20...Qe6 21.Bg6 (21.Nbd4 Bf3 22.Rf3 Qe5 23.Bg6 Qe2 24.Bh7 Kh7 25.Ne2 Rac8+=) 21...hg6 (21...Qg6 22.Rd6 (worse is 22.Qb5 Ba6 23.Qa4 Bf1 24.Rf1 Rfe8+=) 22...Bf3 23.Rf3+=) 22.Rd6 (22.Nbd4 Qc8 23.Rc1 b4+/–) 22...Bf3 23.Rf3 (23.Qf3?! Qe5 24.Rd5 Qc7=) 23...Qc4 24.Qc4 bc4 25.Nd2 (25.Na5 Rfc8 26.c6 Rab8+/–) 25...Nf5 (25...Rac8 26.Rd5 Rfd8 27.Rd8 Rd8 28.Nc4+=) 26.Rd7 (26.Nc4 Nd6 27.Nd6 a6+/–) 26...Rac8 (26...Rad8 27.Rd8 Rd8 28.Nc4+=) 27.Ne4 (27.g4 Nh4 28.Rc3 Rc5 29.Kf2+=) 27...Rfe8 (27...Rce8!? 28.Rc3 Re5 29.Rc4 Ne3+/–) 28.Nd6+– Nd6 (28...Rcd8 29.Rd8 (29.Ra7?! Re5 30.Rc7 Nd6 31.cd6 Rd6=) 29...Rd8 30.c6+– (30.Nc4?! Rc8+=)) 29.ed6 (29.cd6 Rcd8 30.Rff7 Rd7 31.Rd7 Re5 32.Ra7 Rd5+–) 29...Rc5 (better is 29...Rf8!?+/–) 30.Rff7+– (30.Rdf7?! Rd8=) 30...Rd5? (30...Kh7 31.Rg7 Kh6 32.Ra7 Rd5+–) 31.Rg7 Kh8 32.Rh7 Kg8 33.Rdg7 Kf8 34.Ra7 Kg8 35.Rhg7 Kh8 36.Rge7 (36.Rge7 Rc8 37.d7+–; 36.Rg6?! Rd2 37.Kf1 c3 38.Rh6 Kg8+–) 1–0. Pedersen,J – Tilevic, corr Poland, 1976.

4.e3 f6 5.ed4 (5.bc5 e5 6.ed4 ed4 7.Qe2 Kf7=) 5...cd4= 6.c5 Qd5 (6...d3 7.Qb3 Bf5 8.Bb2+=) 7.Bb5 Bd7 8.Bd7 Nd7 9.0–0 e5 10.Na3 (10.Bb2 a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 b6–/+) 10...Rc8 (10...b6 11.d3+=) 11.Qa4 (11.Nc2 b6 12.cb6 ab6=) 11...a6 (11...e4 12.Ne1 b6 13.cb6 ab6 14.d3=) 12.d3 Ne7 (12...Qc6 13.Qa5=) 13.Nc4+= Nc6 14.Qb3 (14.a3 Be7+=) 14...Qf7 15.Nfd2 (15.Rb1 Be7+=) 15...Be7 16.f4 0–0 17.f5 (17.Ne4 b6 18.cb6 Nb4+/–) 17...Rb8 (17...a5 18.a3=) 18.a3 (18.Qa4 Qd5=) 18...b6 (18...a5 19.Qa4=) 19.Nb6 (19.Qa4 Qd5 20.cb6 Qb5=) 19...Qb3= 20.Nb3 Nb6 21.cb6 Rb6 22.Bd2 Re8 (22...Kf7 23.Rac1=) 23.Rfb1 (23.Rac1 Kf7=) 23...Kf7 (23...Bd6 24.Nc5+=) 24.Kf2 (24.Nc5 Rc8+=) 24...g6 25.g4 (25.fg6 hg6 26.Nc5 f5+=) 25...Bd6 26.Kf3 Ne7 (26...e4 27.de4 Ne5 28.Ke2 d3 29.Ke3 Ng4 30.Kd3 gf5 31.ef5 Nf2 32.Kc3 Be5 33.Kc4 Ba1 34.Ra1 Rc8 35.Nc5–+) 27.Ke4= Rg8 (27...Rh8 28.h3=) 28.Rg1 Rc6 29.Na5 Rc2 30.Nc4 Bb8 31.a4 (31.h3 Rc8 32.Rg2 h5=) 31...Rc8 32.Rgd1 Rg8 33.Rg1 h5 (33...Nc8 34.b5=) 34.h3+= gf5 35.gf5 Rg1 36.Rg1 Ra2 37.b5 (37.a5 Nc8 38.Bh6 Re2 39.Kf3 Rh2 40.Rg7 Ke8 41.Rg8 Kd7 42.Nb6 Nb6 43.ab6 Bd6=) 37...Ra4 38.b6 The passed pawn on b6 quickly leads to threats 38...Ra2 39.Bb4?? (39.b7 a5=) 39...Nc6?? (better is 39...Nf5 40.b7 Ne3 41.Ne3 de3–+) 40.Bd6 (40.Ba3 a5+=) 40...Bd6+= 41.Nd6 Kf8 (41...Ke7 42.Nc4 Re2 43.Kf3+/–) 42.Nc4 (42.Rc1 Na5+/–) 42...Nd8 (42...Rh2!?=) 43.Kd5 (43.Rg6 Kf7+/–) 43...Rf2+= 44.Kd6 (44.Nd6 Rb2 45.Rg6 Rb6 46.Rf6 Kg8 47.Re6 Ne6 48.fe6+–) 44...Rf5+/– 45.Kd7 Nb7 46.Nd6 Nd6 47.Kd6 e4 48.Rb1 (48.Rb1 Re5 49.b7+–; 48.de4?! Rb5 49.Kc6 Kf7+/–) 1–0. Kengis,E (2565) – Zuravlev, Riga, 1987.

3.Nf3 g6

4.Bb2+= Bg7 5.g3 (5.e3 e5+=) 5...b6 (5...e5 6.e3=) 6.Bg2 Bb7 (6...c6 7.e3 e5 8.0–0+=) 7.0–0 e5 8.d3 (8.e3 Ne7+=) 8...Ne7= 9.Nbd2 (9.e3 0–0=) 9...0–0 (9...a6 10.Nb3=) 10.Nb3 Nd7 11.c5 (11.Re1 Re8=) 11...a5 (11...Nd5 12.Qd2=) 12.ba5 (12.cb6 cb6 13.ba5 ba5=) 12...ba5+= 13.a4 Bd5 14.Ba3 (14.Rb1 Qe8=) 14...Nc6+= 15.Nfd2 (15.Rb1 Rb8+=) 15...Nf6 (15...Bg2 16.Kg2 Nf6 17.Rb1+=) 16.Qc2 Re8 (16...Bg2 17.Kg2 Qd5 18.Kg1+=) 17.Ne4 (17.e4 de3 18.fe3 Bg2 19.Kg2 Nd5+=) 17...Rb8 (17...Ne4 18.Be4 Be4 19.de4+=) 18.Nbd2 (18.Rab1 Ne4 19.Be4 Be4 20.de4 Qc8+=) 18...Ne4 19.Ne4 White gets the initiative 19...f5 (19...Bb3!? 20.Qd2 Ba4–/+) 20.Nd6= Bb3 (20...cd6 Theme: Interference 21.Bd5 Theme: Double Attack) 21.Qc1 cd6 22.Bc6 Re6 23.cd6 White creates threats along the open c–file 23...Bf8 (23...Kh8 24.Rb1+=) 24.d7+/– Bh6 25.Qc5 Bf8 26.Qf8 Qf8 27.Bf8 Kf8 28.Rfc1 Rd6 29.Rab1 (29.Rc5 Be6+/–) 29...Rb4 30.Bb5 Ke7 31.Rc8 Rd7 32.Bd7 Kd7 33.Ra8 Bc2 34.Rb4 (34.Ra1 Ba4 35.Ra5 Bb5+–) 34...ab4 35.a5 (35.Rb8 Ba4 36.Rb4 Bc6+–) 35...Kc7 36.a6 (better is 36.Ra7 Kc6 37.a6+– (37.Rh7 b3 38.Rh6 b2 39.Rg6 Kc5+=)) 36...b3= 37.a7 (37.Ra7!? Kb6 38.Ra8= (38.Rh7? Ka6 39.Rh8 Kb7 40.Rh7 Kc6–+)) 37...Kb7+= 38.Rb8 Ka7 39.Rb4 e4 (39...Ka6 40.h4+=) 40.Kf1 (40.f3 A) worse is 40...ed3 41.ed3 Ka6 42.Kf2= (42.Rd4? b2 43.Rb4 b1Q 44.Rb1 Bb1–+); B) 40...e3+=) 40...ed3 41.ed3 Bd3 42.Ke1 Bc2 43.Kd2 (43.Rd4?? b2 44.Rb4 b1Q 45.Rb1 Bb1–+) 43...d3 44.Kc3 Ka6 (44...h5 45.h4+=) 45.h4 Ka7 46.Rb5 h5 (46...Ka6 47.Re5 Kb6 48.Re7+=) 47.Rb4 (47.Re5 Kb7 48.Re6 d2 49.Kd2 f4+/–) 47...Ka6+= 48.Rb8 (48.Rd4 Kb7+/–) 48...Ka5+/– 49.Rg8 (49.Rd8 Kb6+=) 49...d2+= 50.Kd2 f4 51.gf4 Kb4 52.Rb8 Kc4 53.Rc8 (53.Rb6 Be4+=) 53...Kd4 54.f3 Bf5 55.Rb8 Kc4 56.Rb7 Bc2 57.Rc7 Kd4 58.Ra7 Kc4 59.Ra4 Kb5 60.Re4 Kc5 61.Kc3 Kc6 62.Rd4 Kc5 (62...Kc7 63.Rd5+–) 63.Rd2 (63.Rd8 Kc6+–) 63...Kb5 64.Rc2 (64.Rg2 Kc6+/–) 64...bc2 65.Kc2 Kc6 66.Kd3 Kd7 67.Ke4 Ke6 68.f5 gf5 69.Kd4 (69.Kd4 Kd6 70.f4+–) 1–0. Romanovskiy – Botvinnik, 1927.

4.e3 a5 5.b5+= c5 6.ed4 (6.Bb2 Bg7+=) 6...Bg7 7.d3 (7.Bb2 Nh6+=) 7...cd4 (7...Bd4 8.Nd4 Qd4 9.Qc2+=) 8.g3 (8.Be2 Nh6+=) 8...Nd7 (8...Nf6 9.Bb2+=) 9.Nbd2 (9.Bg2 e5=) 9...Nc5 10.Nb3 (10.Ba3 Qc7=) 10...Qd6 (10...Ne6 11.a4=) 11.Nc5 (11.Bg2 Qe6 12.Kf1 Nb3 13.ab3 Qd6+=) 11...Qc5+= 12.Bg2 Nh6 13.0–0 0–0 14.a4 Re8 15.Re1 Bf5 16.Ba3 (16.Qe2 e5+=) 16...Qc7 17.c5 (17.Ra2 e5+=) 17...Rad8 (17...e5 18.Rc1+=) 18.Ng5 (18.b6 Qc8+=) 18...Bf6 (18...Ng4 19.b6 Qd7 20.Nf3+=) 19.Ne4 Bg7 20.Qd2 Ng4 21.b6 Qc8 (21...Qd7 22.c6 Qc6 23.Nd6+=) 22.c6 (22.Qa5 Ne5 23.Qb5 Bd7+/–) 22...bc6 23.Qa5 (23.Nc5 Qa8+/–) 23...Ne5+= 24.Qd2 (24.Nc5 Bh3 25.b7 Qg4 26.Re5 Be5 27.Bc6 Rf8+–) 24...Qa6 25.a5 Nd3 26.Nc5 Nc5 27.Bc5 Qb5 (27...e5!? 28.Bc6 Re6+=) 28.Be7+/– Rc8 (28...Rd7 29.Ba3 Rdd8 30.Rec1+=) 29.Bf1 (better is 29.Rac1 h6 30.Qb4+–) 29...Qb3? (29...d3 30.Rab1 Qd5+/–) 30.Ra3+– Qd5 (30...Qc2 31.Qc2 Bc2 32.a6+–) 31.b7 Rb8 32.a6 +–. Euwe – Alekhine, Amsterdam, 1927.

4.g3 Bg7 5.d3 b6 6.Bg2+= Bb7 7.0–0 e5 (7...Nf6 8.Qa4 Qd7 9.Qa3+=) 8.Nbd2 (8.Bg5 Qd6 9.Qa4 Nd7=) 8...Ne7 9.Nb3 (9.Qa4 Nd7+=) 9...0–0= 10.a4 Nd7 (10...a6 11.a5=) 11.a5+= Rb8 12.ab6 (12.b5 c6+=) 12...ab6 13.Ra7 Ba8 14.Bg5 (14.Qc2 Nc6 15.Ra4 Ne7+=) 14...f6 (14...b5 15.cb5 f6 16.Bd2+/–) 15.Bd2 h6 (15...Nc6 16.Ra1+=) 16.Qc2+/– f5 (16...c5 17.b5+/–) 17.Rfa1 c6 18.b5 Qc8 (18...Bb7 19.h3+/–) 19.Qc1 White gets strong initiative 19...Kh7 (19...cb5 20.cb5 Qc1 21.Rc1+/–) 20.Qa3 (20.Bb4 c5 21.Ra8 Ra8 22.Ra8 Qa8 23.Ng5 hg5 24.Ba8 Ra8 25.Bd2+/– (25.Qg5?! Bf6 26.Qd2 cb4=)) 20...Re8+/– 21.Qd6 Bb7 22.Nh4 c5 (better is 22...cb5!? 23.cb5 Nc5 24.Nc5 bc5+/–) 23.Bc6!+– Nf6 (23...Nc6 24.Rb7) 24.Be8 Qe8 25.Qb6 (25.Qc7 g5 26.Rb7 Rb7 27.Qb7 gh4+–) 25...Nc8 26.Qc7 Na7 27.Ra7 (27.Ra7 e4 28.Nc5 ed3 29.Nb7 (29.Rb7?! Rb7 30.Qb7 de2+–) 29...de2 30.Nd8 e1Q 31.Be1 Qe1 32.Kg2+–) 1–0. Kortschnoj,Viktor – Timman,Jan, Linares, 1985.

2.c4 e6

3.a3 Be7 4.Bb2 Nf6 5.Nf3 0–0 6.cd5 ed5 7.g3 c5 8.bc5 Bc5 9.Bg2 Ng4 10.0–0 f6?? 11.d4 Bd6 12.Nc3 Be6 13.Nd2 f5 14.Nd5 Nd7 15.h3 Ngf6+/– 16.Nf6 Nf6 17.Ra2?? Ba2–+ 18.Qa1 Bf7 19.Bb7 Rb8 20.Ba6 Bd5 21.Bc4 Bc4 22.Nc4 Ne4 23.d5 Qg5 24.Qd1 Ng3 25.Bc1 Bf4 26.Bf4 Qf4 27.Qd3 Ne4 28.f3 Qg3 29.Kh1 Nf2 30.Rf2–+ Qf2 31.Nd2 Rfc8 32.Qf5 Rc1 33.Nf1 Rf1# 0–1. gbymar – 19larry, ChessWorld.net, 2009.

3.Qa4 Bd7 4.b5 dc4 5.e3 (5.Nc3 c6 6.Qc4 cb5 7.Nb5 Nc6+=) 5...Qg5 (5...c6!? 6.Bc4 a6–/+) 6.Nc3= Na6 (6...c6 7.Qc4 Qd8 8.Qb3=) 7.Qc4 Nb4 8.Ne4 (8.Nf3!? Qd8 9.Qb3=) 8...Qd5+= 9.Kd1 (9.Rb1 Na2 10.Bb2 f6–/+) 9...Qc4 (9...a6 10.Nc3 Qc4 11.Bc4 ab5 12.Bb5 Bb5 13.Nb5+=) 10.Bc4+= Be7 (10...a6 11.ba6 b5 12.Be2=) 11.a3 (11.Bb2 f6=) 11...Nd5 12.Bb2 Ngf6 13.Nf6 Nf6 14.Nf3 a6 15.a4 ab5 16.ab5 (16.Bb5!? Ne4 A) 17.Bg7? Rg8 (17...Nf2?! 18.Ke2 Rg8 19.Kf2 Rg7 20.d4=) 18.Bd7 Kd7 19.Ne5 Ke8–+; B) 17.Ke2=) 16...Ra1+= 17.Ba1 0–0 (better is 17...Ne4!? 18.Rg1 f6+=) 18.Ke2= Ra8 19.Be5 Ra4 20.Bd3 Nd5 21.Ra1 (21.Rc1 Ba3 22.Rc2 f6=) 21...Ra1 22.Ba1 f6 23.Bc4 (23.Nd4 Bd6=) 23...Kf7 (23...Nb6 24.Bd3+=) 24.d4 (24.d3 Nb6=) 24...Nb6 (24...c6 25.bc6 Bc6 26.Bd3+=) 25.Kd3 (25.Bd3 Nc8=) 25...Nc8 (25...c6 26.bc6 Bc6 27.Bb3+=) 26.d5= Nd6 27.de6 Be6 28.Be6 Ke6 29.Nd4 Kd5 30.Bb2 Ne4 31.f3 Nc5 32.Kc3 (better is 32.Kc2!?=) 32...Na4–/+ 33.Kc2 Nb2 34.Kb2 Bd6 35.g3? (better is 35.Kc3–/+) 35...Be5–+ 36.Kc3 Kc5 37.f4 Bd4 38.ed4 Kb5 39.g4 Kc6 40.h4 White prepares g5 (40.f5 Kd5 41.Kd3 b6–+) 40...Kd5 41.Kd3 b5 42.f5 b4 43.g5 b3 0–1. Pruvost,Alain – Wolfangel,Claude (1780), Bethune op–B, 2003.

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

3.b5 a6 4.ba6 Na6 5.e3 +=.

3.b5 Bd7 4.e3 dc4 5.Bc4 c6 6.Qb3 cb5 (6...Qg5 7.Bf1+=) 7.Bb5= Bb5 8.Qb5 Qd7 9.Nc3 a6 10.Qd7 (10.Qb6 Nc6 11.Nf3 Rc8=) 10...Nd7+= 11.Rb1 (11.Bb2 b5+=) 11...b5 12.Nf3 (12.Bb2 Rc8+=) 12...Ngf6 (12...Rc8 13.Bb2+=) 13.0–0 (13.d3 Rd8+=) 13...Be7 (13...Bd6 14.Bb2+=) 14.d4 (14.Bb2 b4 15.Ne2 Bd6=) 14...Nb6 15.a4 (15.Bd2!?+=) 15...b4–/+ 16.Ba3 (better is 16.a5 Nc4 17.Na2–/+) 16...ba3?? (better is 16...a5–+) 17.Rb6= 0–0 18.Ra1 (18.Rc1!?=) 18...Rfb8+= 19.Rb8 Rb8 20.g3 (20.Ne5 Rb2–/+) 20...Nd5 (20...Rc8 21.Nd1–/+) 21.Nd5+= ed5 22.Ne5 Rc8 (22...Rb3 23.Nd7+=) 23.Nd7 Rc4 (better is 23...f6!?=) 24.Nb6+= Rc2 25.Nd5 The passed pawn on d4 will quickly become a dangerous weapon 25...Bd6 26.e4 (26.h3 f5+=) 26...Rd2= 27.Ne3 White gets the initiative 27...Bf8 (worse is 27...Rd4 28.Nf5 Rd2 29.Nd6 Rd6 30.Ra3+/–) 28.d5 Rb2 (28...Bc5!?=) 29.Nc4 (29.Kg2 a2 30.d6 Bd6+/–) 29...Rb4 (29...Re2 30.Na3 Bc5 31.Nc4 Rf2 32.Kh1+/–) 30.Na3+/– Ra4 (30...Re4 31.Nc2+/–) 31.Nc2 Ra1 32.Na1 Be7 (32...a5 33.f4+/–) 33.e5 Kf8 34.d6 Bd8 35.Nb3 (35.f4 Ke8+–) 35...Bb6+/– 36.Kg2 (36.Nd2 Bd4 37.Nc4 Ke8+/–) 36...Ke8 (36...a5 37.f4+/–) 37.f4 Kd7 (37...a5+/–) 38.f5 (better is 38.Nd2+–) 38...a5 (38...f6 39.e6 Kd6+=) 39.g4 (39.Kf3!? f6 40.Ke4+=) 39...a4= 40.Nc1? (40.Nd2 a3 41.Kf3 a2+=) 40...f6?? (better is 40...Bd4–+) 41.e6= Kd6 42.h3 (42.Kf3 Bd4=) ½–½. Pietrzak,Wojciech(blind) – Kowalski,M, Poland, 2000.

3.c5 a5 4.Bb2 ab4 5.e3 Nf6 (5...Bc5?? 6.Bg7 e5 7.Bh8+–) 6.d4 c6 7.Qb3 Na6 8.Nd2 b5 9.Bd3 Bb7 (9...e5!?–/+) 10.Ngf3= Be7 11.0–0 0–0 12.Ne5 Nd7 13.Nef3 (13.Nd7 Qd7 14.Nf3 Bf6=) 13...f5 (13...e5 14.Bf5 e4 15.Bd7 Qd7 16.Ne1–/+) 14.Rfc1 (14.Qc2 Qe8+=) 14...g5 (14...e5 15.Bb5 e4 16.Ba6 Ba6 17.Ne1+=) 15.Be2 g4 16.Ne1 Nf6 17.f3 (17.Nd3 Qa5=) 17...Kg7 (17...Qa5 18.Nd3+=) 18.a3 ba3 19.Ba3 h5 (19...e5 20.de5 Nd7 21.fg4 Nac5 22.Qc2 fg4 23.Bg4+=) 20.Nf1 Qc7 21.Nd3 h4 22.Ne5 gf3 23.Nf3 Ne4 24.Ne5 Rh8 25.Bd3 (better is 25.Nd3–/+) 25...Kf6 (25...Nac5 26.dc5 Qe5 27.Be4 Qe4–+ (27...de4? 28.Bb2 Qb2 29.Qb2 Bf6 30.Qb3 Ra1 31.Ra1 Ba1 32.Qd1+–)) 26.Be4= de4 27.Nd2 Rag8 (27...Rhf8 28.Rf1 Kg7 29.Qe6+=) 28.Rf1 Kg7? (28...Bc8 29.Ne4 Kg7+/–) 29.Bb2?? (29.Qe6 Rh6 30.Qf7 Kh8 31.Qf5 Bc8 32.Qe4 Be6 33.Qc6 Qc6 34.Nc6 Bh3 35.Ne7 Rg2 36.Kh1 Rd2+–) 29...Kf8?? (better is 29...Bg5+=) 30.Qe6+– Rg7 (30...Ke8 31.Qf5 Rg7+–) 31.Rf5 (31.Qf5?! Ke8+–) 31...Ke8 32.Raf1 (better is 32.Ne4 Kd8 33.Nd6+–) 32...Bc8+/– 33.Qa2 (33.Qc6!? Qc6 34.Nc6 Bf5 A) 35.Ne7 Bh3 36.Rf2 Rf8–/+ (worse is 36...Ke7 37.d5 Rg6 38.Bh8 Nc5 39.Kf1+=; 36...Re7?! 37.gh3 Nb4 38.Rg2+=); B) 35.Rf5+/–) 33...Bf5= 34.Rf5 (34.Qa6? Rhg8 35.Rf5 Rg2 36.Kf1 Rd2–+) 34...Nb4 35.Qe6 Rhg8 36.Kh1 (36.Ne4 Kd8 37.Nd6 Bd6 38.cd6 Qc8 39.Nf7 Rf7 40.Qf7 Re8 41.Qf6 Kd7+–) 36...Rg2 37.Qf7?? (better is 37.Rf1 Kd8 38.Ne4+–) 37...Kd8–+ 38.Rf1 Nd3 39.Bc3?? (39.Ne4 R2g7 40.Qb3 Ne5 41.de5+=) 39...Nf2 (better is 39...Ne5 40.de5 Bc5 41.Qc7 Kc7 42.Ne4 Be3–+) 40.Qf2 Rf2 41.Rf2 Bg5?? (better is 41...Qc8 42.Ne4 Qe6–+) 42.Ng4?? (better is 42.Ba5! Be3 43.Ne4 (43.Bc7?! Kc7 44.Ne4 Bf2 45.Nf2 b4=) 43...Bf2 44.Nf2+/– (44.Bc7?! Kc7 45.Nf2 b4=)) 42...Qe7 43.Rf5 (43.Ne5 Qe6 44.Nf7 Kc8 45.Nd6 Kb8 46.d5 cd5 47.Nf5–+) 43...Qe6 (43...Qe6 44.Rf2 Qg4–+) 0–1. Baer,Cy (1895) – Rheindt,Stefan (2015), remoteschach.de, 2007.

3.cd5 Qd5 4.Nc3 Qd8 5.b5 a6 6.e3 Bd7 7.Nf3 Bb4 8.ba6 ba6 9.Bb2 Nc6 10.a3 Bc3 11.Bc3 Nf6 12.Bc4 0–0 13.0–0 Re8 14.d4 Ne4 15.Qc2 Nc3 16.Qc3 Ne7 17.Qd3 Bc6 18.Ng5 g6 19.Ba6 Nf5 20.Rfc1 Bg2 21.Kg2 Qg5= 22.Kh1 Nh4 23.Rg1 Qf6 24.Bb7+= Rab8 25.Qb5?? e5 26.Qc6 e4?? 27.Qf6+– (27...Rb7 28.Qh4+–) 1–0. gtate (1860) – guillermomoad (1960), net–chess.com, 2003.

3.cd5 ed5

4.a3 =+.

4.e3 Bb4 5.Qa4 Nc6 6.Bb2 –/+.

4.e3 Nf6 5.b5 Bf5 6.Nf3 Bd6 7.d4 0–0 8.Bd3 Bb4 9.Nbd2?? Bd3–+ 10.Ne5 Bb5 0–1. gtate (1860) – towserone (2045), net–chess.com, 2003.

2.d4 a6

3.a3 Nf6 4.c3 e6 5.Nd2 c6 6.Ngf3 Bd6 7.h3 Nbd7 8.e3 b5 9.Bd3 Bb7 10.Qc2 g6 11.0–0 Nb6 12.e4 Bc7 13.e5 Nh5 14.Nh2 Qe7 15.Ndf3 Na4 16.Bh6 0–0–0? (better is 16...f5+/–) 17.g4+– f5 (17...f6 18.gh5 gh5 19.Kh1+–) 18.gh5 (18.Bg5!? Qg7 19.Bd8 Bd8 20.gh5 g5+–) 18...Rdg8 19.Bg5 (better is 19.Kh1 gh5 20.Rg1+–) 19...Qf7?? (better is 19...gh5 20.Kh1 Rg5 21.Ng5 Qg5+–) 20.h6 Bd8 21.Bd8 Rd8 22.Ng5 Qe7 23.f4 Kb8 24.Nhf3 Nb6 25.Qe2 Nd7 26.Qf2 Nf8 27.Qa2 Qd7 28.Nd2 Qe7 29.a4 Nd7 30.ab5 cb5 31.Nb3 Rc8 32.Nc5 (better is 32.Na5 Ba8 33.Bb5 Rc3 34.Ba6+–) 32...Nb6 (32...Nc5 33.bc5 Rc6+–) 33.Bb5! ab5 (33...Rcg8+–) 34.Qa7 Kc7 35.Qb7 Kd8 36.Qb6 Ke8 37.Ra7 Qd8 (37...Qd7 38.Nd7 Rf8 39.Qd6 Rf7 40.Qe6 Re7 41.Qg8) 38.Qb5 1–0. axxle (2255) – samantho (1905), net–chess.com, 2013. (=1.d4 d5 2.b4 a6)

3.a4 c6 4.e3 Qb6 5.Bd2= e6 6.a5+= Qd8 7.Be2 Nf6 8.Nf3 Ne4 9.0–0 Nd2 10.Nbd2 Bb4=+ 11.Ne5 Ba5 12.Bh5 g6 13.Be2 Nd7 14.Ndf3 Bc7 15.c4 Ne5 16.de5 0–0 17.c5 b6 18.cb6 Bb6 19.Qc2 Qd7 20.Rfd1 Bd8 21.Nd4 Bb7 22.Rdb1 Be7 23.Nb3 Rfc8 24.Na5–/+ Rc7 25.Rb3 Bc8–+ 26.Rab1 Kg7 27.f4 f6 28.ef6 Bf6 29.Rb6 c5 30.Bg4 Qe7 31.e4 Bd4 32.Kh1 Qf6 33.f5? c4 34.ed5 Bb6 35.Rb6 Qa1 36.Qb1 Qa5 37.Qb2 Kh6 38.Qc1 g5 39.Rd6 Rd7 40.Re6 Kg7 41.Qg5 Kf8 42.Qf6 (42.Qf6 Kg8 43.Re8#) 1–0. capacuba (2165) – bigal (2120), net–chess.com, 2008.

3.a4 Nc6 4.b5 (better is 4.c3!?+=) 4...ab5–/+ 5.c3 ba4 6.Ra4 Ra4 7.Qa4 Bd7 8.Qb5 Nd4! 9.Qb7 (9.cd4 Bb5 Discovered attack) 9...Bc6?? (9...Nc6 10.e4 de4 11.Bb5–/+) 10.Qa7?? (better is 10.Qa6 Nc2 11.Kd1+/–) 10...Nb5 11.Qc5 (11.Qa6 Qd7–/+) 11...Qd7 12.Na3?? (better is 12.Qe3–/+) 12...e5 (better is 12...e6 13.Qe3 Na3 14.Ba3 Ba3 15.Qd4–+) 13.Qe3 e4 (better is 13...Na3 14.Qe5 Qe7–+) 14.c4?? (14.Nb5 Bb5 15.Nf3–+) 14...dc4 (better is 14...Bb4 15.Bd2 Na3 16.Qh3–+) 15.Nc4?? (better is 15.Nb5!? Bb5 16.Qe4 Be7 17.Bb2–/+) 15...Bb4 (better is 15...Nd4 16.Nd6 Qd6–+ (16...Bd6?! 17.Qd4 Nf6 18.e3–+; 16...cd6?! 17.Qd4 Nf6 18.Bb2–+)) 16.Bd2 Bd2 (16...Nd4 17.Qg3 f6 18.Qh3–+) 17.Nd2 Nf6 18.g3 (18.Qc5 Qd6 19.Qc1 e3 20.fe3 0–0–+) 18...0–0 (18...Nd4 19.Qc3 e3 20.fe3 Nc2 21.Qc2 Bh1 22.Bh3–+) 19.Bh3 Qe7 20.Qg5?? (20.Nb3–+) 20...Qa3 (20...e3 21.f3 Qa3 22.Nb3 Qb3 23.Kf1–+) 21.f3 (21.Kf1 Qc1 22.Kg2 Qd2 23.Qd2 e3 24.Qd5 Bd5 25.Nf3 g5–+) 21...ef3 22.ef3 (22.Kf2 fe2 23.Ngf3 Qf3 24.Nf3 Ne4 25.Ke2 Ng5 26.Ng5 Bh1–+) 22...Re8 23.Ne2 Qa1 24.Kf2 Qh1 25.Nf1 (25.Bg2 Re2! 26.Ke2 Qg2 27.Kd3 Bf3–+) 25...Bf3 (25...Qf3 26.Kg1 Re2 27.Qg7 Kg7 28.Bg2 Qg2) 26.Qb5–+ Ne4 (26...c6!? 27.Qd3 Ng4 28.Ke1 Nh2 29.Qa6 Be2 30.Qe2 Nf3 31.Kd1 Re2 32.Ke2 Ng1 33.Kd2 Nh3 34.Ne3 Qh2 35.Kc1–+) 27.Ke1 Ra8 (better is 27...Nd6 28.Qe8 Ne8–+) 28.Kd1 (28.Qe5 Nf6 29.Nf4–+) 28...Nc3 29.Kd2 Nb5 30.g4 Ra2 31.Ke3 Re2 32.Kf4 Re4 33.Kf5 (33.Kg3 Nd4 34.Kh4 Nf5 35.Kg5 h6 36.Kf5 g6 37.Kf6 Re6) 33...Nd6 (33...h6 34.Bg2 Nd4) 34.Kg5 h6 35.Kh5 Bg4! 36.Bg4 (36.Bg4 Nf5 Mate attack) 36...Qf1 37.h3 Qf4 (37...g6 38.Kh6 Qf4) 38.Kh4 Nf5 39.Kh5 Qg5 0–1. Hilpert,Fabian (1710) – Benndorf,Sarah (2000), remoteschach.de, 2004. (=1.d4 d5 2.b4 a6)

3.a4 e5 4.c3 ed4 5.Qd4 =+.

3.c3 Bf5 4.e3 h5 5.Nd2 e6 6.a4 g6 7.Be2 Nd7 8.Ngf3 Ngf6 9.Nh4 Bg4 10.Nhf3 Bh6 11.0–0 0–0 12.Ba3 Re8 13.Ne5 Be2 14.Qe2 Ne5 15.de5 Nd7 16.f4 c6 17.Nf3 b6 18.Nd4 Qc7 19.g4 h4 20.g5 Bg7 21.Qg4 c5 22.bc5 bc5 23.Nf3 Qa5 24.Bb2 Nb6 25.Nd2 Rab8 26.Nb3 Qa4 27.Nc5 Qc6 28.Na6 Rb7 29.Qh4 Nc4 30.Bc1 Ree7 31.Qe1 Ra7 32.Nb4 Qb6 33.Rb1 Qc5 34.Nd3 Qa5 35.Rb8 Bf8 36.Qh4 Rab7 37.Rf8 Kf8 38.Qh8# 1–0. jaortiz (2350) – valerypavlovich (2120), net–chess.com, 2014. (=1.d4 d5 2.b4 a6)

3.Nd2 e6 4.a3 c6 5.e4 de4 6.Ne4 h6 7.Bc4 Nf6 8.Ng3 b5 9.Ba2 Bd6 10.N1e2 0–0 11.0–0 Bb7 12.Bd2 Qc7 13.Rc1 Re8 14.c4 Nbd7 15.c5 Be7 16.Bf4 Qd8 17.f3 Nd5 18.Bd5 ed5 19.Nf5 Bf8 20.Qd2 g5 21.Bd6 Qf6 22.Bf8 Nf8 23.Neg3 Bc8 24.Nd6 Re6 25.Ngf5 Bd7 26.g4 Qg6 27.f4 Nh7 28.Nh4 gh4 29.h3 Re7 30.Rf2 Nf6 31.f5 Qg7 32.Rg2 Ne4 33.Ne4 Re4 34.Rd1 Rae8 35.Kf1 Re3 36.Rf2 Rh3 37.Re2 Qg4 38.Rg2 Rg3 39.Rg3 Qg3 40.Qg2 Bf5 41.Qg3 hg3 42.Kg2 Re3 43.Rf1 Be4 44.Kg1 g2 45.Rf2 Re1 0–1. gumshoe (2365) – bigal (2300), net–chess.com, 2014.

3.Nf3 e5 4.de5 Bb4 5.Bd2 =.

3.Nf3 e6 4.a3 Bd7 5.Bf4 Nc6 6.c3 h6 7.Nbd2 Nf6 8.h3 Be7 9.e3 Na7 10.a4 c6 11.Bd3 Nh5 12.Bh2 g6 13.Be2 Bf6 14.Ne5 Bc8 15.Nd3 Ng7 16.Ne5 Nf5 (16...Nh5 17.Bh5 gh5 18.Qh5 Rh7+–) 17.Ndf3 0–0 18.0–0 Kg7 19.Qd3 b5 20.a5 Bb7 21.Ng4 Nc8 (21...Be7!?+/–) 22.Nf6+– Kf6 23.g4 Nfe7?? (better is 23...Nfd6+/–) 24.Be5 1–0. axxle (2205) – bigal (2165), net–chess.com, 2013. (=1.d4 d5 2.b4 a6)

3.Nf3 f6 4.c3 b5 5.e3 c6 6.h3 a5= 7.a3 Nd7 8.Bd3= ab4 9.cb4 e5=+ 10.Bb2? e4–/+ 11.Be4? de4–+ 12.Nfd2 Qe7 13.Qg4 Nc5?? 14.bc5?? Bg4–+ 15.Nc3 Bh5 16.Nde4 Qc7 17.Nd6 Bd6 18.Ne4 Be7 19.0–0 Be2 20.Rfe1 Bd3 21.f4 Be4 22.Bc3 Nh6 23.g4 0–0 24.h4 Ng4 25.Rf1 Ne3 26.Rfe1 Qf4 27.Rf1 Qg3# 0–1. dcroll – nwishn (1735), net–chess.com, 2006.

3.Nf3 h6 4.Bf4 Nf6 5.h3 Nc6 6.c3 b5 7.Nbd2 Bf5 8.e3 Ne4 9.Ne4 Be4 10.Be2 e6 11.0–0 Bd6 12.Nd2 Bf4 13.Ne4 de4 14.ef4 0–0 15.a4 Qf6 16.Qd2 Ne7 17.ab5 ab5 18.Bb5 c6 19.Ba4 Rfc8 20.Rfe1 Qg6 21.Bc2 f5 22.Ra5 Qe8 23.Rea1 Nd5 24.c4 Nb6 25.Bb3 Kh8 26.Qc3 Nd7 27.Ba4 Nb6 28.Bd1 Kh7 29.f3 ef3 30.Bf3 Rab8 31.Ra7 Nd7 32.R1a6 Qd8 33.Bc6 Nb6 34.d5 ed5 35.Qg7 1–0. Koci,Vlastimil – Ventura,Bob, RN–2011–0–00361, 2011. (=1.d4 d5 2.b4 a6)

3.h3 c6 4.f3? (better is 4.Bf4!?=) 4...e6 5.h4 Bb4 6.c3 Be7 7.Rh3 (7.g3 Nf6–+) 7...Bh4 8.Kd2 e5! 9.de5 (9.Rh1 Nd7–+) 9...Bh3 10.Nh3 Qe7 11.Ba3 Qe5 12.f4 Qc7 13.e3 Nf6 14.Qf3 Ne4 15.Ke2 Ng3 16.Ke1 Nd7 17.Qg4 Nf5 (17...Nf1?! 18.Qh4 c5 19.Kf1–+) 18.Ke2 g6 19.Nd2 (19.Qf3 0–0–0 20.g4 Ng3 21.Kd1 Nf1 22.Qf1 Rde8–+) 19...Nf6 (better is 19...Qa5 20.Bb4 Qb5 21.Nc4–+) 20.Qf3 0–0–0 21.c4 (21.Bc5 Ne4! 22.Bd4 f6–+) 21...d4 (better is 21...Rhe8 22.Bc5–+) 22.Kd1 (22.e4 Qa5 23.Bb2 d3 24.Kd1 Qa4 25.Nb3 Qc4 26.Rc1 Qe4 27.Nf2 Bf2 28.Qf2–+) 22...Ne3 23.Kc1 Rhe8 (23...Qa5 24.Nb1 Qe1 25.Kb2 Nf1 26.f5–+) 24.g3 (24.Bd3 Neg4 25.Ne4 Nh2–+) 24...Nf1 (better is 24...Qa5 25.Bb2 Ne4 26.Qe4 Nf1 27.Nb3–+) 25.Nf1 Re1 (better is 25...Qa5 26.Kb2 Bg3–+) 26.Kd2 (26.Kb2 Qb6 27.Qb3 Re2 28.Kc1 Qb3 29.ab3–+) 26...Ra1 27.Ng5 Ra2 28.Kc1 Bg5 (28...Qb6 29.Qd3 Ra1 30.Kd2 Qa5 31.Kc2 Ra3 32.Qa3 Qa3 33.Nd2 Qc3 34.Kb1 Bg5 35.Nf3 Qf3 36.Ka2 Re8 37.Kb1 Qf2 38.fg5 Re1) 29.fg5 Nh5 (29...Qb6 30.Nd2 d3 31.Kd1 Ra1 32.Bc1 Qb2 33.Qd3 Qc1 34.Ke2 Qe1 35.Kf3 Rd3 36.Kf4 Qg3) 30.Kb1 Ra3! 31.Qa3 (31.Qa3 d3 Passed pawn) 31...d3 32.Kc1 Ng3 33.Ne3 Qf4 34.Kd2 Qf2 35.Kc3 Qe3 36.c5 Ne4 0–1. Beck,Daniel – Jaszczowski,Zdzislaw, ZN–2010–0–00981, 2010. (=1.d4 d5 2.b4 a6)

3.c3 Nf6

4.f3 Nc6 5.e3 e5–/+ 6.Ne2 b5 7.h3 Bd6=+ 8.de5 Be5 9.f4 Bd6 10.Nd4 Ne7 11.Nd2 Nf5–/+ 12.Nf5 Bf5 13.Nf3 Ne4 14.Bb2? c6 15.Nd2?? Qh4 16.g3 Qg3 17.Ke2 Qf2 18.Kd3 Nd2 (19.Kd4 Nf3 20.Qf3 Qd2 21.Bd3 Qd3#; 18...Nc5 19.Kd4 Ne6#) 0–1. chsen – kolokwium, internet, 2006.

4.Nf3 e6 5.a4 Bd7 6.Bg5 Be7 7.h3 Ne4 8.Be7 Qe7 9.Qc2 0–0 10.Nbd2 f5 11.Ne4 fe4 12.Nh2 Nc6 13.e3 Qf6 14.Ng4 Qf7 15.Nh2 Ne7 16.Qe2 b5 17.a5 Nf5 18.Ng4 Qe8 19.Ne5 Nd6 20.Qg4 Nf7 21.Nf7 Qf7 22.Ra2 e5 23.Qh4 ed4 24.cd4 Rae8 25.g4 Qf3 26.Rg1 Re6 27.Rc2 Bc6 28.g5 g6 29.Rg3 Qf7 30.Bg2 Qe7 31.Qg4 Ref6 32.gf6 Qf6 33.f4 ef3 34.Rf3 Qg7 35.Rf8 1–0. jaortiz (2345) – prasanta (2415), net–chess.com, 2014. (=1.d4 d5 2.b4 a6)

4.Nf3 Bf5 =.

3.Nf3 Nc6

4.a3 Nf6 5.Bg5 h6 6.Bf6 ef6 7.e3 Bg4 8.c4 b6 9.Qa4 Bd7 10.Nh4?? (10.Qb3!?+/–) 10...Nd4 (better is 10...dc4 11.Qc2 b5+=) 11.b5?? (better is 11.Qd1 Nc6 12.cd5=) 11...ab5–+ 12.Qd1 Bb4! 13.ab4 (13.Nd2 Bd2 14.Kd2–+) 13...Ra1 14.ed4 (14.cd5 Qe7 15.Bd3 Qb4 16.Kf1 Nb3–+) 14...bc4 15.Be2 0–0 16.0–0 Ra8 17.Nc3 Be6 18.f4 f5 19.Nf3 Qd6 20.Ne5 Qb4 21.Qd2 Qe7 22.Bh5 Qh4 23.Qe2 g6?? 24.Bg6? fg6–+ 25.Ng6 Qf6 26.Nf8 Qd4 27.Kh1 Bf7 28.Nb5 Qd3 29.Qe1?? Rf8 30.Rf3 Re8?? 31.Qg3+= (31.Qg3 Kh7 32.Rd3 cd3 33.Qf2= (33.Nc7?? d2 34.h3 d1Q 35.Kh2 Re1–+)) 1–0. sosg – mbarracl, Gameknot.com, 2006.

4.c3 Nf6 5.e3 e6 6.a3 b5 7.Be2 Bd6 8.0–0 0–0 9.Qc2 e5=+ 10.de5 Ne5 11.Ne5 Be5 12.Rd1 Ne4 13.Bf3 f5 14.Nd2 Nc3?? 15.Qb3?? Nd1–+ 16.Bd5 Kh8 17.Ba8 Nf2 18.Kf2 Qh4 19.g3 Qh2 20.Ke1 Bg3 21.Kd1–/+ f4 22.ef4 Qg1?? 23.Kc2=+ Bf5 24.Be4= Bf4 25.Bf5 Rf5 26.Qd3 Rf8 27.Bb2 Bd2?? 28.Rg1+– Bh6 29.Qd7 Rf2 30.Kb3 Rf3 31.Ka2 Rf8 32.Qc7 Rg8 33.Qc6 a5 34.Qb5 ab4+– 35.Qb4 Rc8 36.a4 Kg8 37.a5 g6 38.Qb6 Bg7 39.Qe6 Kf8 40.Qc8 Kf7 41.Bg7 Kg7 42.a6 Kh6 43.Rh1 Kg5 44.Qc5 Kf6 45.a7 Kg7 46.a8Q g5 47.Rh7! Kh7 48.Qa6 g4 49.Qc7 Kg8 50.Qac8# 1–0. jlambe (1995) – cruciverbalist (2155), net–chess.com, 2008.

2.d4 b5

3.Na3 a5 4.ba5 c6 =+.

3.Na3 c6 4.Bf4? Nf6 5.e3?? e6?? 6.Qd2? Ne4–+ 7.Qe2?? Bb4 8.Kd1 Nc3 9.Kd2 Ne2 10.Kd1 Nc3 11.Kd2 Qa5 12.Kd3 Qa3 (13.Bg5 Na2 14.Ke2 Nc3 15.Kf3 Qa1–+) 0–1. tuergeist – Master1, mySchach.de, 2005.

3.Bb2 Nc6 4.a3 a5 (4...a6 5.Nf3=) 5.Nc3 (5.e4 Rb8 6.ed5 Qd5+=) 5...Ba6 (5...ab4 6.Nb5 e6 7.c3 ba3 8.Ba3 Ba3 9.Ra3 Ra3 10.Na3=) 6.e3 Rb8 (6...ab4 7.Nb5 Nf6 8.Nf3=) 7.ba5 Na5 8.Nf3 Nf6 (8...Nc4 9.Bc4 bc4 10.Ra2=) 9.Bd3 e6 10.0–0 Bd6 11.e4 (better is 11.a4 Nc4 12.Bc4 bc4 13.Ba3=) 11...0–0?? (better is 11...Nc4 12.Bc1 de4 13.Ne4 Ne4 14.Be4 Bb7 15.Bb7 Rb7=) 12.e5+– Nc4 13.Bc4 (13.ed6 Nb2 14.dc7 Qc7+=) 13...bc4 14.Qc1 (14.ed6?! Rb2 15.Na4 Rb8 16.dc7 Qc7=) 14...Be7 15.ef6 Bf6 16.Rb1 c5 17.Ne5?? (better is 17.Qe3+–) 17...Qc7 18.Re1 cd4 19.Nd5 ed5 20.Bd4 Rbe8 21.Nf3 Bd4 22.Nd4 Re7 (22...c3 23.Qg5 Bc4 24.Re3=) 23.Qg5+= g6?? (better is 23...Re1 24.Re1 Qa5+=) 24.Re7+– Qc5 (24...Qd6 25.Nf5 Qa3 26.Nh6 Kg7 27.Ng4+–) 25.Qf6 (25.Qf6 Bc8 26.Nc6+–) 1–0. Bell,Alexander – Clay,Michael, compuserve, 1998. (=1.b4 b5 2.d4 d5)

3.Bb2 e6 4.e3 a6 5.Nf3 (5.c3!?=) 5...Bb4–/+ 6.c3 Bd6 7.Bd3 Nf6 8.0–0 0–0 9.Qc2 h6 (9...c5 10.dc5 Bc5 11.a4 ba4 12.c4 dc4 13.Qc4–/+) 10.Nbd2 c5 11.dc5 Bc5 12.Nb3 (12.a4 ba4 13.c4 Nbd7+=) 12...Bb6 13.Ne5 (13.a4 ba4 14.Ra4 Bb7+=) 13...Nbd7 (13...Qc7 14.Nf3–+) 14.Nd7–/+ Bd7 15.e4 (15.Ba3 Re8–/+) 15...de4–+ 16.Be4 Ne4 17.Qe4 Rc8 18.Rfd1 Bc6 19.Qe1 (19.Qg4 Qf6 20.Rd2 e5–+) 19...Qf6 20.Rd2 e5 21.Rad1 Bc7 22.Nc5 a5 23.Nd7 Bd7 (23...Qg6 24.Qf1 Rfe8 25.a4 ba4 26.c4–+) 24.Rd7–/+ a4 (24...Rfd8 25.R7d5–/+) 25.a3 (25.Qe2 Qc6+=) 25...Ba5 (better is 25...Rfd8!?–/+) 26.R7d5 e4 27.Qe4 Bc3 28.Bc3 Rc3 29.Qb4 Rb3 30.Qa5 Qc6 31.Rd6?? (31.h3 Ra3 32.Rb5 Ra8 33.Rd8 Rd8 34.Qd8 Kh7–/+) 31...Ra8 (better is 31...Qd6! 32.Qe1 Qa3–+) 32.Rd8 Rd8 33.Qd8 Kh7 34.h3 (better is 34.Qe7–+) 34...Ra3 35.Rd6?! (35.Qe7 Rc3 36.Qf7 Rc1 37.Qf5 Kg8 38.Rc1 Qc1 39.Kh2 Qc6–+) 35...Qc1 (35...Qc3!? 36.Kh2 Qe5 37.g3–+) 36.Rd1 Qc4 37.Rd4 Qc3 38.Qh4 (38.Kh2 Qc5 39.Rf4 f6–+) 38...Ra1 39.Kh2 Rb1?? (better is 39...Qc7 40.Qf4 Rc1 41.Qc7 Rc7–+) 40.Qe4+/– g6 41.Rd3?? (41.Rd7 Qb3 42.Qe8+–) 41...Qc2 (41...Qc2 42.Qf4 Qc4–+ (42...Qd3?! 43.Qf7 Kh8 44.Qf8 Kh7 45.Qf7 Kh8 46.Qf8 Kh7 47.Qf7=); better is 41...Qc7!? 42.f4–+) 0–1. Neffgen,Dieter – Guggenberger,Simon, RSS4E easy–1, 2003. (=1.b4 b5 2.d4 d5)

3.c3 a5 4.e4 c6 5.ed5 Qd5 6.ba5 Ra5 7.Be3 =.

3.c3 c6 4.a4+= Ba6 5.a5 f6 6.f4 f5 7.g3 e6 8.h4 (8.Nf3 Nf6=) 8...h5 (8...Nf6 9.Nf3+=) 9.e3 Nf6 10.Nf3 Ne4 11.Rh3 Nd7 12.Bd3 Ndf6 13.Ng5 g6 (13...Qd7 14.Kf1+=) 14.Be4 fe4 15.Ne6 Qe7 16.Nc5 Bc8 17.Rh2 Ng4 18.Rg2 a6 19.Nd2?? (better is 19.Na3=) 19...Ne3–+ 20.Qe2 Ng2 (better is 20...Nc2 21.Kf2 Bg4–+ (worse is 21...Na1 22.Nf1–+)) 21.Qg2 e3 (better is 21...Bg7!?–+) 22.Nf3–/+ Bg4 23.Ne5+= Rg8 24.Nc6+= Qc7? 25.Qd5+– Rg7?? 26.Ne6 Qd7?? 27.Ng7 Qg7 28.Be3 Rc8 29.f5! Bf5 30.Bg5 Rc7?? 31.Qd8+– Kf7 32.Qc7 Kg8 33.Be7 Be7 34.Ne7 Kf8 35.Qd8 Kf7 36.0–0–0 Qf6 37.Re1 g5 38.hg5 Qg5+– 39.Kd1 Bg4 40.Kc2 Bf5 41.Kb3 Be6 42.Ka3 Qe7 43.Qe7 Ke7 44.d5 (44.d5 Kd7 45.de6 Ke7 46.c4 bc4 47.Kb2 c3 48.Kc3 Kd6 49.e7 h4 50.e8Q hg3 51.Re7 g2 52.Qd7#) 1–0. Thrustnicely – Footyhead, playchess.de, 2003.

3.c3 Bf5 4.Na3 c6=+ 5.Bf4 Na6 6.Qb3 Qd6?? 7.0–0–0 0–0–0 8.g3 Nf6?? 9.Bd6+– Rd6 10.h4 h5 11.Bh3 Bh3 (12.Nh3 g6+–; 11...Ng4 12.Nf3+–). striphan – ttriphan, net–chess.com, 2006. This is possibly a faked game (Marek Trokenheim).

3.c3 Nf6 4.g3 (4.e4 Ne4 5.Bb5 Bd7=) 4...e6 5.a4 c6 6.ab5 cb5 7.e3 Be7 8.Ra5 Nc6 9.Rb5 (better is 9.Bb5 Bd7 10.Ra4=) 9...a6–/+ 10.Qa4 ab5?? (better is 10...Qc7–/+) 11.Qa8+/– 0–0?? (better is 11...Bd7 12.Qd8 Kd8+/–) 12.Qc6+– Qd6 (12...Bd7 13.Qb7+–) 13.Bb5 1–0. georginoh (1715) – paull (1730), net–chess.com, 2013.

3.Nc3 a6 4.g3 Nf6 5.Nf3 e6 6.a3 black timed out. 1–0. pillsbury (2145) – aauerbach (1900), net–chess.com, 2014.

3.Nc3 c6 4.a4 a6 5.ab5 cb5 6.Nb5+= ab5?? 7.Ra8+– Nc6 8.g3 Nf6 9.Qd3 Bb7 10.Rd8 Nd8 11.Qb5 Nd7 12.Bh3 Bc6 13.Qd3 e6 14.b5 Bb7 15.Qc3 Nb6 16.Qc7 Nd7 17.Bd2 Nf6 18.Bf1 Be7 19.Bg2 0–0 20.c4 h6 21.cd5 ed5 22.Qe7 Re8 23.Qd6 Kh7 24.Nh3 Ne6 25.0–0 Nd4 26.Qb6 Ne2 27.Kh1 Bc8 (28.Nf4 Nf4 29.Bf4 Bd7+–). armymann – jlvanoster, net–chess.com, 2005.

3.Qd3 c6 4.e4 de4 5.Qe4 Nf6 6.Qd3 e6 7.Bd2 Bb7 8.Nf3 Nbd7 9.Be2 Bd6 10.c4 a6 11.c5 Bc7 12.Nc3 h6 13.Rd1 0–0 14.Kf1 Nd5 15.a3 a5 16.Qb1 Qf6 17.Bd3 ab4 18.ab4 Bf4 (18...Nc3!? 19.Bc3 Ra3+=) 19.Ne4= Qe7 20.Bf4 Nf4 21.g3 Nd5 22.Rd2 Ra4 23.Rb2 N7f6 24.Kg2 Ne4 25.Be4 Nf6 26.Ne5 Ne4 27.Qe4 Qc7 28.Re1 Rfa8 29.Kg1 R8a6 30.Rb3 Ra3 31.Ra3 Ra3 32.h4 Rb3 33.Rb1 Ra3 34.h5 Ra6 35.Rb3 Qe7 36.Rf3 f5 (better is 36...f6!? 37.Ng6 Qe8+=) 37.Ng6+/– Qd7 (37...fe4? 38.Ne7 Kh7 39.Rf7 Ra1 40.Kg2+–) 38.g4 Ra8 (38...fe4?? 39.Rf8 Kh7 40.Rh8) 39.gf5 ef5 40.Ne7 Kh8 41.Rf5 Qe8 42.Qe6 Rd8 43.Re5 Qd7 (43...Kh7 44.Qf5 Kh8 45.Ng6 Kg8 46.Re8 Re8+–) 44.Ng6 Kh7 45.Qd7 (45.Qd7 Ba6 46.Qd8 Bc8 47.Qh8) 1–0. pumpkin (2405) – tightfist (2210), net–chess.com, 2013.

3.e3 Nc6 4.Bb5+/– Bd7 5.Nc3 Nf6 6.Nf3 a6 7.Bc6+/– Bc6 8.Ne5 a5?? 9.Nc6+– Qd6 10.a3 Qc6+/– 11.b5?? Black gets the initiative 11...Qc3–+ 12.Bd2 Qc4 13.a4 Ne4 14.f3 Nd2 15.Qd2 e6 16.c3 c6 17.bc6 Qc6 18.0–0 Bd6 19.g4 0–0 20.h4 f5 21.gf5 ef5 22.f4 g6 23.Kf2 Be7 24.Rh1 h5 25.Kf3 Kh7 26.Qd3 Bd6 27.Rhc1 Qc4 28.Qc4 dc4 29.Rab1 Kh6 30.Rd1 Rab8 31.Rbc1? Rb3 32.d5 Ra3 33.Ra1 Rc3 34.Rg1 Bc5 35.Rge1 Re8 36.Kf2 Be3 37.Kf1 Rd3 38.Rad1 Rd1 39.Rd1 Bf4 40.d6 g5 41.hg5 Bg5 42.d7 Re4 43.d8Q Bd8 44.Rd8 c3 45.Rc8 Rf4 46.Ke2 Ra4 47.Rc3 h4 48.Rc6 Kh5 49.Rc8 h3 50.Rh8 Kg4 51.Rg8 Kf4 52.Rc8 h2 53.Rh8 Ra2 54.Kd3 Kg3 55.Rg8 0–1. arian1230 – maz_manchester, ChessWorld.net, 2005.

3.e3 Bd7!? =.

3.e3 e6 4.Bb5 c6 5.Bd3 Bb4 6.c3 Bd6 7.c4 Bb4 (7...e5 8.c5 Bc7 9.Nc3=) 8.Bd2+= Bd2 (8...dc4 9.Bc4 Bd6 10.Qc2+=) 9.Nd2+/– (9.Kd2?! Ba6+=) 9...Ba6 10.Rb1 (10.Ngf3!?+/–) 10...dc4= 11.Bc4 Qa5 (better is 11...Bc4 12.Nc4 Qd5+=) 12.Ngf3?? (better is 12.Qg4 g6 13.Qe2+/–) 12...Bc4–+ 13.a4 (13.Ne5 Bd5 (13...Ba2?! 14.Rb8 Rb8 15.Nc6+=) 14.Qg4 Ne7 (14...Ba2? 15.Qg7 Bb1 16.Qf7 Kd8 17.Qf8 Kc7 18.Qg7 Kc8 19.Qh8+–; 14...Qa2?? 15.Qg7 Qb1 16.Nb1+–) 15.Qg7 Rf8–+) 13...Nf6 (13...Nd7 14.Qc2 Ba6 15.Qc6–+) 14.Ne5 Bd5 15.0–0 0–0 16.Ndc4? (better is 16.Qc2 c5! 17.e4–+) 16...Bc4 17.Nc4 Qd5 18.Qc2 Nbd7 19.a5 Rfb8 20.Ra1 Rb4 21.Nd2 e5 22.Nf3 e4 23.Nd2 Rab8 24.Rfc1 Rb2 25.Qc3 h6 26.Nc4 R2b3 27.Qc2 R8b4 28.Nd2 Rb2 29.Qc3 Qb5 30.h3 Nd5 31.Qc5 Nc5 (31...Nc5 32.Rc5 Qd3–+) 0–1. Lott,Christian (2040) – Master,Harry (2150), remoteschach.de, 2008. (=1.d4 d5 2.b4 b5)

3.e3 f6 4.Bb5 c6 5.Bd3 Nd7?? 6.Qh5 g6 7.Bg6! (7...hg6 8.Qg6#) 1–0. bane – Look, mySchach.de, 2005.

3.Nf3 f6 4.Bf4 Bd7 5.Nc3 g6 6.Nd5+/– Na6 7.e3 Bc6 8.Nc3 Nb4? 9.a3 g5? 10.Bg3 Nd5+/– 11.Bd3?? Nc3–+ 12.Qd2 Na4 13.0–0 Nb2 14.c3? Nd3–+ 15.Qd3 e6 16.h3 Qd7 17.e4 0–0–0 18.a4 Kb8 19.Rfb1 Ka8?? 20.c4?? b4 21.c5 Rb8 22.a5 Bb5 23.Qd2 Bc6 24.Rb4?? Rb4 25.Qb4 Ne7 26.Rb1 Bg7 27.e5 Nd5 28.a6?? Nb4–+ 29.Rb4 Rb8 30.Rc4 Rb1 31.Kh2 Bb5 32.Rc3 Ba6 33.c6 Qd8 34.Nd2 Rd1 35.Nb3 f5 36.Nc5 Qd4 37.Rb3 Qc5 38.Rb2 f4 39.Rb3 fg3 40.Kg3 Qe5 41.f4 Qf4# 0–1. aauerbach (1990) – tmitchell (2065), net–chess.com, 2008.

3.Nf3 h6 4.c3 Nf6 5.e3 a6 6.h3 Bf5 7.Bd3 Be6 8.Ne5 Nbd7 9.Nc6 Qc8 10.Na5 c6 11.0–0 Nb6 12.Re1 Nc4 13.Bc4 dc4 14.Qf3 Bd5 15.e4 Ne4 16.Qe3 e6 17.Bb2 Be7 18.Nd2 Bg5 19.Ne4 Be3 20.Nd6 Kd8 21.Nc8 Rc8 22.Re3 g5 23.Nb7 Ke7 24.Nc5 Ra8 25.a4 Rhg8 26.a5 h5 27.Rae1 h4 28.Bc1 g4 29.hg4 Rg4 30.Ne4 Rag8 31.g3 hg3 32.Ng3 Rh8 33.Kf1 Rf4 34.Re6 fe6 35.Bf4 Rf8 36.Bg5 Kd7 37.Ne4 Rf3 38.Nc5 Kc8 39.Re3 Rf5 40.Bh6 Kb8 41.Na6 Ka7 42.Nc5 Rh5 43.Bf8 Rh6 44.Nd7 Rh7 45.Bc5 Kb7 46.Nf8 Rh6 47.Rg3 Rf6 48.Rg7 Kc8 49.a6 Kb8 50.Nd7 Kc7 51.Nf6 1–0. pillsbury (2150) – sammyo (2045), net–chess.com, 2014.

3.f4 a5 4.ba5 e6 5.e4 Ra5 6.e5 =.

3.f4 Nf6 4.a4 ba4 5.Ra4 =+.

3.Bf4 a5 4.ba5 Ra5 5.e4 =.

3.Bf4 c6 4.e3 h5 5.Be2 Nf6 6.h3 a5= 7.Bb8 Rb8=+ 8.a3 Ra8 9.c3 Ne4 10.Bh5 Nc3?? 11.Nc3+/– ab4 12.ab4 Ra1 13.Qa1 Rh5= 14.Nf3 f6 15.0–0 e6 16.Qd1 g6 17.h4 Bb4 18.Ne2 g5 19.g4 Rh7 20.Qb1 Bd6?? 21.Qh7+– b4 22.Qg8 Bf8 23.hg5 fg5 24.Ng5 e5 25.Ne6 Be6 26.Qe6 Be7 27.Qe5 Qd7 28.Qb8 Bd8 29.Qb4 Qg4 30.Ng3 Bh4 31.Qb8 Kd7 32.Qf4 Qh3 33.Ra1 Bg3 34.Qg3 Qe6 35.Ra7 Kd8 36.Qb8 Qc8 37.Qc8 Kc8+– 38.Rh7 1–0. arjankluin (2790) – sabkluin, net–chess.com, 2002.

3.Bf4 Nc6 4.Nc3 (4.e3 Nb4 5.c3 Nc6 6.Bb5 Bd7+=) 4...Nb4 (better is 4...e5!? 5.de5 d4–/+) 5.Nb5 Na6 6.e3 Bd7 7.Nc3 e6?? (7...c6 8.Ba6 Qa5 9.Qd3+–) 8.a3 (better is 8.Ba6 Rb8 9.Rb1+–) 8...Qc8 9.Nf3 h6 10.Be2 c5 11.0–0 c4 12.e4 Bc6 13.Qd2 de4 14.Ne1 (better is 14.Ne5!? g5 15.Bc4+/–) 14...Bd5 15.Nb5 Qd7 (15...Nf6 16.Qa5 Kd7 17.c3=) 16.Nc3 (16.Qa5!? Bb7 17.Bc4+/–) 16...Be7 17.Be5 Bd6 (better is 17...Bg5!? 18.Qd1 f6+=) 18.Bg7+= (worse is 18.Nd5 Be5 19.de5 ed5=) 18...Rh7 19.Be5 h5 20.Qg5 Ne7 21.Bh5 Be5 22.de5 Nc5 23.Qe3 (23.Rd1 Qc6+/–) 23...Rh5 24.Qc5 Re5 25.Qd4 Rg5 (25...f6 26.f4 ef3 27.Nf3 Bf3 28.Qd7 Kd7 29.Rf3=) 26.Qe3 (26.Ne4 Be4 27.Qe4 Qc6+=) 26...Rg6 27.a4 Nf5 28.Qe2 Qc6 29.Nb5 e3 (better is 29...Rh6!? 30.Qg4 a6+=) 30.fe3+= White claimed a win on time. . . 1–0. gordiemac – Patrick F, ChessWorld.net, 2012.

3.Bf4 e6 4.Nf3 (4.e3 Bd7 5.a4 ba4=) 4...Be7 (4...Bb4!? 5.c3 Be7+=) 5.e3= Nf6 6.Bb5 c6 7.Ba4 0–0 (7...Bb4 8.c3 Bd6 9.Bd6 Qd6 10.Nbd2+=) 8.Nbd2 Ba6 9.Bb3 (better is 9.c3!?+/–) 9...Bb4+= 10.a3 (10.Bg5!?+=) 10...Bc3–/+ 11.Ra2 Ne4 12.Qc1 (12.h3!?–/+) 12...Nd7 13.Bd6?? (better is 13.Bg3–+) 13...Nd6 14.Kd1 Qb8 15.Ba4 Nb6 (better is 15...Nf6!? 16.Ng5 Ng4 17.Nh3–+) 16.Bc6 Bb7 17.Bb7 Qb7 18.Ke2 Qa6 19.Kd1 Rab8 20.a4 Ne4 21.Ne4 de4 22.Ne5 Rfd8 23.Nc6 Nc4 24.Nb8 Rb8 25.f3 Ne3! 26.Qe3 Rb1 27.Qc1 Rc1 28.Kc1 Qe2 29.Ra3 Qd2 30.Kb1 e3 31.Rb3 h6 0–1. Jimbo628859 – stefanW, ChessWorld.net, 2012.

3.e3 a6

4.a4 ba4 5.Nf3 Bd7 +=.

4.Bb5 c6 5.Bd3 Bb4 6.c3 Bd6 7.c4 Bb4 (7...e5 8.c5 Bc7 9.Nc3=) 8.Bd2+= Bd2 (8...dc4 9.Bc4 Bd6 10.Qc2+=) 9.Nd2+/– (9.Kd2?! Ba6+=) 9...Ba6 10.Rb1 (10.Ngf3!?+/–) 10...dc4= 11.Bc4 Qa5 (better is 11...Bc4 12.Nc4 Qd5+=) 12.Ngf3?? (better is 12.Qg4 g6 13.Qe2+/–) 12...Bc4–+ 13.a4 (13.Ne5 Bd5 (13...Ba2?! 14.Rb8 Rb8 15.Nc6+=) 14.Qg4 Ne7 (14...Ba2? 15.Qg7 Bb1 16.Qf7 Kd8 17.Qf8 Kc7 18.Qg7 Kc8 19.Qh8+–; 14...Qa2?? 15.Qg7 Qb1 16.Nb1+–) 15.Qg7 Rf8–+) 13...Nf6 (13...Nd7 14.Qc2 Ba6 15.Qc6–+) 14.Ne5 Bd5 15.0–0 0–0 16.Ndc4? (better is 16.Qc2 c5! 17.e4–+) 16...Bc4 17.Nc4 Qd5 18.Qc2 Nbd7 19.a5 Rfb8 20.Ra1 Rb4 21.Nd2 e5 22.Nf3 e4 23.Nd2 Rab8 24.Rfc1 (24.Rfb1 Rb1 25.Nb1 Rb5–+) 24...Rb2 (24...c5 25.Ra4–+) 25.Qc3 h6 26.Nc4 R2b3 27.Qc2 R8b4 28.Nd2 (28.Ra4 Rb5–+) 28...Rb2 29.Qc3 Qb5 30.h3 (30.Rd1–+) 30...Nd5 31.Qc5 (31.Qc6 Qc6 32.Rc6 Rd2 33.Rc8 Kh7 34.Ra8–+) 31...Nc5 (31...Nc5 32.Rc5 Qd3–+) 0–1. Lott,Christian (2040) – Master,Harry (2150), remoteschach.de, 2008. (=1.d4 d5 2.b4 b5)

4.c3 Bd7!? =.

4.c3 g5 5.a4+/– ba4 6.Qa4 Bd7 7.b5 a5 8.Nf3 g4 9.Ne5 f6 10.Nd7 Nd7 11.c4 Nb6 12.Qb3 a4 13.Qb4 (better is 13.Qd1!? dc4 14.Qg4+/–) 13...dc4 14.Bc4 e6 (worse is 14...Nc4 15.Qc4 Qd7 16.Nc3+–) 15.Qc3 Ne7? (better is 15...Nc4 16.Qc4 Qd5 17.Qd5 ed5+/–) 16.Be6+– Ned5?? (16...c6 17.Na3 Nbd5+–) 17.Qc6 Ke7 18.Ba3 (18.Ba3 Qd6 19.Bd6 Ke6 20.Bc7 Kf7 21.Bb6 Nb6 22.Qb6 Bb4 23.Nd2+–) 1–0. Lott,Christian (2040) – Master,Harry (2150), remoteschach.de, 2008. (=1.d4 d5 2.b4 b5)

4.Nc3 e6 5.Bd2 (5.a3!?=) 5...Bb4–/+ 6.Nb5? (better is 6.a4!? ba4 7.Ra4–/+) 6...Bd2–+ (6...ab5?! 7.Bb4 Bd7 8.Nf3+=) 7.Qd2 ab5 8.Bb5 c6 9.Be2 (9.Bd3 Ba6–+) 9...Nf6 10.a4 (10.Bd3 Ba6–+) 10...0–0 (10...Ne4 11.Qc1–+) 11.a5 (11.Bd3 c5! 12.dc5 Qc7–+) 11...h6 (better is 11...Ne4!? 12.Qc1–+) 12.Nf3 (12.Bd3 c5! 13.dc5 Nc6–+) 12...Ne4 13.Qb4 Ba6 14.c4 (14.Bd3 Nd7–+) 14...Bc4 (14...dc4 15.Bc4 c5 16.dc5–+) 15.Bc4 dc4 16.Qb7? (16.0–0–+) 16...Ra5 17.0–0 Ra1 (17...Rb5 18.Qa8–+) 18.Ra1 Qd7 (18...Qd5 19.Ne5–+) 19.Qb4 Qd5 20.Ra8 (20.Ne5 c3 21.f3 c5 22.fe4 Qe5 23.Qc3 cd4 24.Qd4 Nc6 25.Qe5 Ne5–+) 20...Nd7 21.Ne5 (21.Ra5 c5 22.Qb2–+) 21...Ra8 22.h3 Ne5 23.Qb7 Ra5 24.de5 Qe5 25.Qc6 Ra1# 0–1. Lotter,Christian (2140) – Master,Harry (2150), remoteschach.de, 2006. (=1.d4 d5 2.b4 b5)

3.f4 f5

4.e4 de4 5.Bb5 Bd7 +=.

4.h4 e5 5.fe5 Bb4 6.c3 =+.

4.h4 h5 5.e3 Bd7 6.Nf3 e6 7.c3 a5 8.Bd2 ab4 9.cb4 Na6 10.a3 Nb4 11.Nc3 Nc6 12.Bb5 Nf6 (12...Ba3 13.0–0=) 13.Bc6 Bc6 (13...Ba3?? 14.Ba8 Bd6 15.0–0+–) 14.g3 (14.Ne5!? Bd7 15.Ng6=) 14...Bd6 (14...Ra3!? 15.Ne5 Bd7–/+) 15.a4 Ne4 (15...Bb7 16.Ng5+=) 16.Ne4= de4 17.Ne5 Be5 18.de5 Qd3 19.Qe2 (better is 19.a5!?=) 19...Ra4 20.Qd3 (20.Ra4 Ba4 21.Kf2 Bb5 22.Qd3 Bd3–/+) 20...ed3 21.Ra4 Ba4 22.Kf2 Kd7 23.Ra1 Bc2 24.Kf3 Rb8 25.Rc1? (25.e4!?–/+) 25...c5 (25...Rb2!? 26.e4 Bb3 27.Ba5–+) 26.e4 c4 27.Ke3 (27.ef5 Rb3 28.fe6 Ke6–+) 27...Kc6 28.Kf3? Kc5 29.Ke3? Rb3 30.Kf2? c3 31.Be1 fe4 32.Ke3 Kd5 33.Ra1 d2 34.Ke2 de1Q 35.Ke1 Rb1 36.Rb1 Bb1 37.Kd1 e3 38.Ke2 c2 (38...c2 39.Ke3 c1Q 40.Kf2 Qd2 41.Kf1 Bd3 42.Kg1 Qe1 43.Kg2 Be4 44.Kh3 Qh1#) 0–1. alfredalfred – willitheblitzer (2155), Gameknot.com, 2014.

4.h4 h5 5.e4!? fe4 6.Bb5 Bd7 7.Be2 +=.

4.h4 h5 5.g3 e6 6.e3 g6 7.c3 c6 8.a4+= a6 9.Qf3 a5 10.ab5+= cb5 11.c4?? bc4–/+ 12.Bc4 Bb4 13.Bd2 Bd2 14.Nd2 dc4?? 15.Qa8+– c3 16.Nc4 Qc7+/– 17.Na5 c2 18.Rc1 Qc3 19.Kf2 Qb2? 20.Ne2 Ba6? 21.Nc6 Be2 22.Qb8 Qb8+/– 23.Nb8 Bd3 24.Nc6 Be4 25.Ne5 Bh1= 26.Rh1 Rh7 27.Nc4?? Ra7?? 28.Rc1+= Ra2 29.Kf3 Ne7 30.e4 Nc6=+ 31.ef5?? Nd4–+ 32.Ke4 Nf5 33.Rg1?? Ng3!!–+ 34.Ke5 Ne2 35.Rg6 Ra6 36.Rg8 Kf7 37.Rc8 c1Q 38.Nd6 Rd6 39.Rc1 Nc1 40.Kd6 Kf6 41.Kd7 Nd3 (42.Kc7 Nf4–+; 41...Ne2 42.Kc6–+) 0–1. ludwig (1945) – khazar (1620), net–chess.com, 2005.

2.d4 c6

3.a3 b5 4.Nf3 Nf6 5.e3 Nh5 6.Bd3 g6 7.Nbd2 Bg7 8.c3 0–0 9.a4 ba4 10.Ra4 Nd7 11.Nb3 Ndf6 12.Na5 Bd7 13.Ra2 Bg4 14.Nc6+/– Qc7 15.Nce5 Bf3 16.Qf3 Qc3 17.Rd2?? Qc1–+ 18.Rd1 Qc3 19.Kf1 Qb4 20.g3 a5 21.Kg2 a4 22.Rb1 Qa5 23.Rhc1 a3 24.e4?? e6 25.Rc5 Qa4 26.Ra1 de4 27.Be4 Ne4 28.Qe4 Qb4 29.Rac1 a2 30.R5c4 Qb3 31.R4c2 a1Q 32.Ra1 Ra1 33.Nd7 Rd8 34.Ne5 (34...Qb1 35.Qe2–+). olliemurphy – LuckyMiki, internet, 2007.

3.a4 b6 4.a5 (4.Nf3 e5 5.Ne5 Bb4 6.c3 Bd6=) 4...ba5 (4...e5 5.c3 ed4 6.Qd4 ba5 7.Ra5=) 5.ba5 e6 6.Bd2 c5 7.c4 (7.e3 Nc6=) 7...dc4 (7...cd4 8.Nf3 Bc5 9.Na3–/+) 8.dc5+= Bc5 9.Qa4 (9.e3 Ba6+=) 9...Qd7 (9...Bd7!? 10.Qa2 Bc6–/+) 10.Qc4= Na6 11.Nf3 Ne7 (11...Rb8 12.e3=) 12.e3 (12.Nc3 Bb7=) 12...f5 (12...0–0 13.Bd3 Ng6 14.0–0=) 13.Ne5+= Qd6 (13...Qc7 14.Qa4 Kf8 15.Nd3+=) 14.Qb5 (better is 14.Qa4 Kf8 15.Nc4+=) 14...Bd7?? (better is 14...Kf8 15.Bc3 Nd5=) 15.Nd7+– (15.Qa6?! Qe5 16.Bc3 Bb4=) 15...Nc7 (15...Qd7 16.Qa6 Kf7 17.Bb5+–) 16.Qc5 (16.Nc5?! Nb5 17.Bb5 Kf7=) 16...Qd7 17.Nc3 (17.e4 fe4 18.Nc3 0–0+–) 17...0–0 18.Bb5 (18.Rd1 Rfc8+–) 18...Nb5 19.Nb5 (better is 19.Qb5 Qb5 20.Nb5 Rab8+–) 19...Rac8 (19...Rfc8 20.Qd6 Qd6 21.Nd6+–) 20.Qa7 Qb5 21.Qe7 Rce8 (21...Qd5 22.f3+–) 22.Qb4 Qd5 (22...Qa6 23.Qb6 Qc4 24.Rc1+–) 23.0–0 Rb8 (23...Rc8 24.Qd4+–) 24.Qd4 Qb5 (24...Qa8 25.Qe5 Rf6 26.Rfb1 Rb1 27.Rb1+–) 25.Bc3 Rf7 (25...Qb7 26.a6 Qf7 27.Rfb1+–) 26.Qe5 (26.a6 Qc6+–) 26...Qa6 (26...Qe5 27.Be5 Ra8+–) 27.Qb8 (27.Qb8 Rf8 28.Qe5+–) 1–0. Lotter,Christian (2140) – Master,Harry (2150), remoteschach.de, 2007. (=1.d4 d5 2.b4 c6)

3.a4 e5 4.de5 Bb4 5.c3 +=.

3.a4 Bf5 4.b5 e6 5.Bf4 Bd6 6.Bd6 Qd6 7.e3 a6 8.bc6 Nc6 =+. agock – mvlease, internet, 2007.

3.c3 a5 4.b5 a4 5.Qd3 Qa5 6.Bd2 Qb5 7.Qb5 cb5 8.e4 Bd7 9.ed5= Nf6 10.c4 bc4=+ 11.Bc4 b5–/+ 12.Be2 Nd5 13.Nf3 f6 14.0–0 g6 15.Nc3 Nc3 16.Bc3 Bg7 17.d5 b4 18.Bb4+= f5 19.Rab1 Na6 20.Ba6 Ra6 21.Rfe1 Bf6? 22.Ba3?? Kf7 23.Rb7 Rd8 24.Nd2 e6 25.g3? Bc3 26.Bb4 Bd2 27.Bd2+= Ke7?? 28.Bg5 Ke8 29.Bd8 Kd8 30.Rd1 e5? 31.Rb8 Bc8?? 32.d6 Kd7 33.Rc8 Rd6?? 34.Rd6+– Kd6 35.Ra8 Kc5 36.Ra4 Kb5 37.Ra8 Kb4 38.a4 h6 39.Ra6 g5 40.Rh6 Ka4 41.Rh5 Kb4 42.Rg5 Kc4 43.Rf5 Kd4 44.h4 e4 45.h5 1–0. spacebuffalo (1735) – ural (1820), net–chess.com, 2009.

3.c3 Nd7 4.Nd2 e5=+ 5.e3 ed4 6.ed4= Bd6 7.Ngf3 Ngf6 8.Bd3 0–0 9.0–0 Nb6 10.Qc2 Re8 11.Bb2 h6 12.Rae1 Bd7 13.Bc1 (13.Bc1 Qc7 14.a3=; 13.Re8 Qe8 14.Re1 Qf8=). carlosfandangos – golly1, ChessWorld.net, 2007.

3.c3 f6 4.e3 e5 5.Ne2 f5 6.f4 ed4 7.Nd4 g6 8.Nd2 c5 9.bc5+= Bc5 10.Bb5 Bd7= 11.Bd3 Nc6 12.0–0 Bd4 13.cd4 Nb4 14.Be2 Rc8 15.Rb1 Qe7 16.Ba3?? Nc2 17.Be7+– Ne3 18.Qe1 Nf1 19.Qf1 Ne7 20.Rb7 Nc6 21.Rb4 Nb4= 22.Qb1 Nc6 23.Qb2 Rb8 24.Qc3 0–0 25.Qe3?? Rfe8=+ 26.Qf3 Nd4?? 27.Qd5+– Kf8 28.Qc5 Kf7 29.Qd4 Re2 30.Qc4?? Be6?? 31.Qe2+– Ba2 32.Nc4 Rb4 33.Qa2 Rb8 34.Nd6 Kf8 35.Qf7 1–0. mdephillip – ndanforth, net–chess.com, 2002.

3.c3 g6 4.Nf3 Bg7 5.e3 Bg4 6.Be2 Nf6 7.0–0 0–0 8.Nbd2 Qd6 9.a3 Nbd7 10.Re1 Bf3 11.Bf3 e5 12.Bg4 Ng4=+ 13.Qg4 Nf6 14.Qg3 Nh5 15.Qh3 f5 16.Nf3 ed4 17.cd4 Rae8 18.Ne5 Be5–/+ 19.de5 Qe5 20.Bd2 Nf6 21.Rac1 Ne4–+ 22.Rc2 Nd2 23.Rd2 Qc3 24.Rdd1 Qa3 25.b5 Qc5 26.g3 Qb5 27.Kg2 a5 28.f4 Qc5 29.Rc1 Qb4 30.Rb1 Qd2 31.Kh1 Re3 32.Re3 Qe3 33.Rb7 Qe1 34.Kg2 h5 35.Qh4 Re8 36.Qg5?? Re2 37.Kh3 Qf1 38.Kh4 Rh2# 0–1. pieeater – philstar99, ChessWorld.net, 2009.

3.c3 h6 4.e3 Nf6 5.Nf3 b5 6.Bd3 e6 7.0–0 g5 8.Re1 Bd6 9.Nbd2 Qc7 10.Ne5 Be5 11.de5+= Qe5 12.Qc2 Nbd7 13.Nf3 Qd6 14.e4 de4 15.Be4 Rb8 16.a4 e5 17.ab5+/– cb5 18.Ra7 Qb6? 19.Ra3 Bb7 20.Bb7+– Qb7 21.Ne5 0–0 22.h3 Qc7 23.Nd7+– Nd7 24.Qf5 Rb6? 25.g3 Rf6 26.Qg4?? Ne5=+ 27.Qh5?? Nd3 28.Rd1 Nf2–+ 29.Rf1?? Qg3# 0–1. pieeater – gordiemac, ChessWorld.net, 2009.

3.Nc3 Bf5 4.e3 e6 5.h4? Bb4–+ 6.Qd2 Nf6 7.f3 Qa5 8.Bb2 Nbd7 9.h5 Nb6 10.a3–/+ Bd6 11.g4 Bg4 12.fg4= Ng4 13.0–0–0? Ba3–+ 14.Nb1?? Bb2 15.Kb2 Qa4 16.Nc3 Qb4–+ 17.Ka2 Nf2! 18.Qf2 Qc3 19.Rd3 Qa5 20.Ra3 Qb4 21.c3 Qd6 22.Nf3 c5 23.Ne5 f6=+ 24.Bb5 Ke7 25.Qh4 c4 26.Rg1 Rhg8 27.Nf3 a6 28.Ba4 Na4 29.Ra4 b5 30.Rb4 Qb6 31.Rgb1 Rgb8 32.Ra1 a5–+ 33.Rbb1 b4 34.Kb2 b3 35.Qg3 a4?? 36.Qg7+= Kd6 37.Ka3?? b2–+ 38.Qg3 Kc6 39.Qb8 Rb8 40.Nd2 ba1Q 41.Ra1 Qb2 42.Ka4 Qa1# 0–1. maftei – Kevin the fruitbat, ChessWorld.net, 2009.

3.e3 e5 4.de5 Bb4 5.Bd2 Qe7 6.a3 Bd2 7.Qd2 Nd7 8.Nc3 Ne5–/+ 9.a4 Nf6 10.g3 Bg4 11.h3 Bf3 12.Rh2 0–0 13.h4 d4 14.ed4 Nd3# 0–1. lucky bucky – Klaus Behrmann, ChessWorld.net, 2004.

3.e3 e6 4.Nf3 Bb4=+ 5.c3 Ba5 6.Be2 Nf6–/+ 7.0–0 b5 8.Re1 Ne4 9.Qc2 Nd7 10.Nbd2 Nc3 11.Bb2 Ne2–+ 12.Re2 Bb7 13.e4 Bd2 14.Qd2 Qf6 15.e5–/+ Qe7 16.Rc1 0–0 17.Ng5 h6 18.Nh3 f6 19.ef6 Rf6 20.Rce1 Re8 21.Re3 Bc8 22.a3 Nb6–+ 23.g3? Nc4 24.Qe2 Ne3 25.Qe3 a5 26.Nf4 Qf7 27.Kg2 Rf8 28.Nh3 g5 29.Qd3 Rf2 30.Nf2 Qf2 31.Kh3 e5 32.Qf5 Bf5 33.g4 Qf3# 0–1. pieeater – Kevin the fruitbat, ChessWorld.net, 2009.

3.Nf3 e6 4.a3 Nf6 5.Bg5 Be7 6.c3 0–0 7.e3 Re8 8.Ne5 Nbd7 9.Bf6 Bf6=+ 10.Qh5 g6 11.Qh6 Ne5 12.de5 Be5 13.f4 Bf6 14.h4 e5 15.h5 Bg4 16.hg6–/+ fg6?? 17.Qh7+/– Kf8 18.Qg6 Qe7? 19.Qg4+– b5 20.Nd2 a5? 21.g3 ab4 22.cb4 d4?? 23.e4 Rad8 24.Qf5 Rd7 25.Rh8 Kf7 26.Rh7 Kf8 27.Qf6! Qf7?? 28.Rh8# 1–0. maftei – pieeater, ChessWorld.net, 2009.

3.Nf3 Nf6 (--> 1.b4 Nf6 2.d4 d5 3.Nf3 c6).

3.Bf4 e6 4.Nc3? Bb4–/+ 5.Bd2 Qa5 6.Nb1 Nf6 7.c3 Ba3 8.c4 Qb6?? 9.c5?? Qb2=+ 10.Na3 Qa3 11.Nf3 0–0 12.Bg5 Qa5 13.Qd2=+ Qa3 14.Bf6= gf6 15.e3 e5 16.de5 fe5=+ 17.Ne5 f6 18.Qd3?? Qb2 19.Rd1 Qa2 20.Ng6 Nd7?? 21.Nf8+/– (21.Nf8 Qa5 22.Rd2 Nf8 23.Qc2+=). wgauthier – dsais, net–chess.com, 2002.

3.Bf4 Nf6 4.e3 Ne4 5.f3 Nf2?? 6.Kf2+– Bf5 7.g4 Bg4 8.fg4 Nd7 9.c4 dc4 10.Bc4 Qb6 11.Qb3 e6 12.a3 c5 13.dc5 Nc5 14.Qd1 Rd8 15.Qd8! Kd8 16.bc5?? Bc5?? 17.Ne2+– e5 18.Be5 Be3 19.Kf3 Re8 20.Rd1 Kc8 21.Rd6 Qb2?? 22.Bb2+– Bc5 23.Bf7 Re3 24.Kf2 Bd6 25.Ke3 Bc5 26.Bd4 Bd4 27.Kd4 b5 28.Nbc3 a6 29.Rf1 Kc7 30.Bg8 a5 31.Nb5 Kb6 32.Nec3 h5 33.gh5 Ka6 34.Kc5 Kb7 35.Rf7 Kb8 36.Kc6 a4 37.Rf8# 1–0. maftei – interloper, ChessWorld.net, 2009.

3.Bf4 g6 4.Nc3 Bg7 5.e3= Nf6 6.h3 0–0 7.Nf3 Nbd7 8.Bd3 Re8 9.Ng5 h6 10.Nf3= g5 11.Bg3 a5 12.a3 ab4 13.ab4+= Ra1 14.Qa1 Nb6 15.Na4 Na4 16.Qa4 e6 17.Ne5 Nd7 18.f4 Ne5 19.fe5+= f6 20.0–0 b5 21.Qb3 fe5 22.de5 Qb6 23.Bg6 Rf8 24.Qd3 Rf1 25.Kf1 Qa7 26.c3 Qa1 27.Kf2 Qa2 28.Kf3 Qc4 29.Qc2 Qf1=+ 30.Kg4 Qc4 31.Kh5 Be5?? 32.Bd3 Qc3= 33.Bh7 Kf8 34.Be5= Qe5 35.Qc6 g4 36.Kg4 Qg7 37.Kf3 Bd7 38.Qc5 Ke8 39.Bd3 Qf6 40.Ke2 Qb2 41.Kf3 Qf6 42.Ke2 Qb2 43.Bc2 Kf7 44.g4 Qe5 45.Bd3 Qh2–/+ 46.Kd1 Qh3 47.Bb5 Bb5–+ 48.Qb5 Qg4 49.Kd2 Qg2 50.Qe2? Qe2–+ 51.Ke2 Ke7 52.Kf3 Kd6 53.b5 Kc5 54.Kf4 Kb5 55.Ke5 h5 56.e4 Kc4 57.Kf4 Kd4 58.ed5 ed5 59.Kg5 Ke3 60.Kh5 d4 61.Kg4 d3 62.Kf5 d2 63.Ke5 d1Q 64.Kf5 Qd4 65.Ke6 Qc5 66.Kd7 Qb6 67.Ke7 Qc6 68.Kf7 Qd6 69.Kg7 Qe6 70.Kf8 Qd7 71.Kg8 Kf4 72.Kf8 Kf5 73.Kg8 Kg6 74.Kf8 0–1. maftei – philstar99, ChessWorld.net, 2009.

3.g3 e5 4.Bg2 (4.c3 ed4 5.Qd4 Nf6+=) 4...Bb4–/+ 5.Bd2 (5.c3 Bd6–/+) 5...Bd2 (5...Bd6 6.de5 Be5 7.Bc3 Bc3 8.Nc3–/+) 6.Qd2–/+ Nd7 7.Nf3 (7.de5 Ne5 8.Nf3 Nf3 9.Bf3 Bh3–+) 7...e4–+ 8.Qb4? (better is 8.Qe3–+) 8...ef3 9.Bf3 Qf6 10.Nc3 (10.0–0 Ne7–+) 10...a5 11.Qa3 (11.Qb3 Qd4 12.Rd1 Qe5–+) 11...Qd4 12.0–0 (12.Rb1 Ne5 13.Nd1 Nf6–+) 12...Qb4 13.Qb4 (13.Nb1 Qa3 14.Na3 Ngf6–+) 13...ab4 14.Nb1 (14.Nd1 Ne5–+) 14...Ne5 15.e4 (15.Nd2–+) 15...Nf3 16.Kg2 de4 (16...de4 17.a3 Nf6–+) 0–1. Andrasiunas,Kestutis – Behrmann,Klaus (1775), FICGS, 2007.

3.a4 Nf6

4.Nd2 Bf5 5.e3 e6 6.c3 Nbd7 7.a5 Bd6 8.Ngf3 0–0 9.Be2 e5 10.de5 Ne5 11.Nb3 (11.0–0 Nf3 12.Nf3 Qc7+=) 11...Ne4 12.Bb2 Qf6 13.Nbd4 Ng4 14.0–0 Qh6 h2 seems the pivot of the position 15.h3 Ngf2 16.Rf2 Qe3 (worse is 16...Nf2 17.Nf5 Qe6 18.Kf2 Qf5 19.c4+=) 17.Nf5 Qf2 18.Kh1 Rae8 19.Qd4? (19.c4 dc4 20.Qc2 Ng3 (20...Bb4 21.Bg7 Ng3 22.Ng3 Kg7 23.Nh5 Kh8 24.Nf6+–) 21.Ng3 Qg3 (worse is 21...Bg3 22.Ng5 g6 23.Ne4 Re4 24.Qe4+/–) 22.Bc4 Re3+=) 19...Ng3 (better is 19...f6 20.Nd6 Qe2 21.Ne8 Qb2–/+ (worse is 21...Re8 22.Bc1+/–)) 20.Ng3+= Qg3 21.Bd3 Bf4 22.Rf1 (22.Qa7?? Re3 23.Bf1 Rf3–+) 22...Re3 23.Kg1? (better is 23.Bc1 Rf3 24.Bf4 Rf1 25.Bf1=) 23...Rfe8–+ 24.c4 Rf3?? (better is 24...Re2!? 25.Be2 Re2 26.Qg7 Qg7 27.Bg7 Kg7 28.cd5 cd5–/+) 25.Rf3+= Be3 26.Qe3 Re3 27.Rg3 Rg3 28.Bc2 dc4 29.Kf2 Rg5 30.Bd4 a6 31.Be4 Kf8 (31...h6 32.Bf3=) 32.Kf3 (32.Bf3 h5=) 32...Ke7 33.Kf4 Rb5 (better is 33...f6!?+=) 34.Bc5= (worse is 34.Bg7 f6–/+ (worse is 34...Rb4 35.Bd4 Rb5 36.Bc3–/+)) 34...Ke6 35.Ke3 f5 36.Bf3 Rc5 37.bc5 Ke5 38.g4? (better is 38.g3!?+=) 38...f4–+ 39.Kd2 Kd4 40.g5 h6 41.h4 hg5 42.hg5 c3 (better is 42...Kc5!? 43.Kc3 Kb5–/+) 43.Kc2+= 0–1. Surlan,D – Elieff,K, London, Canada, 1992.

4.Nf3 Nbd7 5.e3 e6 6.Bd3 Bb4–/+ 7.c3 Bd6 8.0–0 Ne4 9.Be4 de4–/+ 10.Ng5?? Nf6 11.a5? 0–0 12.Nd2–/+ h6 13.Ngf3?? ef3–+ (14.Qf3 Bb8–+) 0–1. sk_130 – rla, Internet, 2007.

3.c3 Bf5

4.e3 Nd7 5.Nf3 Ngf6 6.Be2 e6=+ 7.0–0 Bd6 8.Re1 0–0 9.Nbd2 Re8 10.Nf1 e5 11.de5 Ne5 12.Ng3 Nf3–/+ 13.Bf3 Bg6 14.Bb2 Qd7 15.Rc1 Rad8 16.a3 Bg3 17.fg3 b6 18.Qd4 Ne4 19.Be4? Be4 20.Rf1 f6 21.c4 dc4 22.Qc4 Qe6 23.Qe6 Re6 24.h4 Bd5 25.Rfe1 Rde8 26.Rc3 a6 27.Kh2 a5 28.Kh3 ab4–+ 29.ab4 –+. pieeater – nickbarletta, ChessWorld.net, 2009.

4.Nf3= e6 5.g3 Be7 6.Bf4 Nd7 7.Nbd2 Ngf6 8.e3 Ne4–/+ 9.Ne4 de4 10.Ne5 Ne5 11.Be5= f6 12.Bf4 h5 13.h4–/+ Qb6 14.a4 a6 15.Be2 Bg6 16.a5 Qd8+= 17.Bc4 Bf7 18.Qc2+= f5 19.Qb3 Qd7 20.0–0 g5 21.Be5 Rg8 22.Rfe1? gh4–+ 23.Kf1 hg3 24.Bg3 h4 25.Be5 h3 26.Bg3 Bd6 27.Bh4 Rh8 28.Bf6 Rh6 29.Bg5 Rg6 30.Bh4 Be7 31.Bg3 0–0–0 32.Ke2 Bd6 33.Bd6 Qd6 34.Qb1 Rg2 35.Kd2 Rf2 36.Re2 Qh2 37.Qh1 Re2 38.Be2 Qg2 39.Qg2–/+ hg2 40.Rg1 Rg8 41.Ke1 Kd7 42.Kf2 Kd6 43.Bc4 Bh5 44.Rg2 Rg2 45.Kg2 e5 46.Kg3 Be8 47.Kf2 Bd7 (47...Bd7 48.Kg3 Be6 49.de5 Ke5–/+; 47...f4 48.de5 Ke5 49.ef4 Kf4 50.Be6–/+). mtra – OtoXII, internet, 2002.

4.Nf3 h6 5.e3 e6 6.Be2 Nf6 7.0–0 Bd6 8.a3 Bc7 9.Re1 Qd6 10.Nbd2 Nbd7 11.Bb2 0–0 12.c4 Bg4 13.c5 Qe7 14.a4 a6 15.a5 Rab8 16.h3 Bf3 17.Bf3 e5 18.de5 Ne5 19.Kh1 Nd3–/+ 20.Re2?? Nb2–+ 21.Qc2 Be5 22.Rb1 Rfd8 23.g3? Qe6 24.Kh2 Kf8 25.h4? Ke7 26.Nf1? Rh8 27.Nd2? h5 28.e4? d4–+ 29.Qb2 d3 30.Qc1 de2 31.Be2 Rbd8 32.Nf3 Ng4 33.Kg2 f6 34.Qc2 Rd7 35.Bc4–/+ Ne3 36.fe3 Qg4 37.Ne5 fe5 38.Rf1 Kd8 39.Qb3?? Rd2–+ 40.Kg1 Qg3 41.Kh1 Qg2# 0–1. pieeater – novice1234, ChessWorld.net, 2009.

4.Bf4 Nd7 5.e3= Ngf6 6.h3 Bb1 7.Qb1 g6 8.Bd3 Bg7 9.Nf3 0–0 10.0–0 Nb6 11.a4 Nbd7 12.c4 e5? 13.de5+– Ne4 14.Be4 de4 15.Qe4 Re8 16.Rfd1 Qc8 17.a5 Nf6 18.Qd3 Rd8?? 19.Qd8 Qd8 20.Rd8 Rd8 21.ef6 Bf6 22.Rc1 a6 23.g4 h6 24.Bh6 Bb2 25.Rb1 Bc3 26.Bf4 f6 27.c5 Rd5 28.Kg2 Kg7 29.h4 f5 30.gf5 gf5 31.h5 Rd8 32.h6 Kh7 33.Ng5 Kg6 34.Kf3 Bf6 35.Rg1 Rd3 36.h7 Bh8 37.Rh1 Rb3 38.Ne6 Rb4 39.Rh6 Kf7 40.Bd6 Re4 41.Ng5 (41.Ng5 Kg7 42.Rh1+–) 1–0. maftei – novice1234, ChessWorld.net, 2009.

3.c3 Nf6

4.Be3 h6 5.Nf3 e6 6.g3 Ne4 7.Na3? Nc3–+ 8.Qd3 Bb4 9.Nc2 Qa5?? 10.a3+/– Ba3. pippuri – underdog, net–chess.com, 2001.

4.h3 e6 5.g4 h6 6.f3 g5 7.f4 Bd6 8.fg5 Ne4–+ (8...Ne4 9.Bg2 Bg3 10.Kf1 Nf2–+) 0–1. pawnstar (1775) – pandora, net–chess.com, 2002.

3.Nc3 e6

4.a3= Nf6 5.Bf4 a5 6.b5 a4 7.e3 Qa5 8.Qd2 Bd7. maftei – TeaCzar, ChessWorld.net, 2009.

4.Nf3 Bb4–/+ 5.Bd2 Qa5 6.e4?? Bc3–+ 7.Ke2 Bd2 8.ed5 Bc3 9.dc6 Ba1 10.c7 Bc3 11.Ne5 Qc7 12.g3 Nd7 13.Bg2 Ne5 14.de5 Qe5 15.Kf1 Nf6 16.Qd3 Qe1# 0–1. interloper – Kevin the fruitbat, ChessWorld.net, 2009.

3.Nc3 Nf6

4.e3 e6 5.a3 Be7 6.Nf3= 0–0 7.Qd3 Nbd7 8.Na4 b6 9.c4 Ba6 10.b5? cb5 11.cb5= Bb7 12.Be2 Ne4 13.0–0 a6 14.Nc3 f5 15.h3 Ndf6 16.Ne5 Bd6 17.f4 Nc3 18.Qc3 Ne4 19.Qb3 Be5 20.de5 Rc8 21.Bb2? Nd2–/+ 22.Qd3 Nf1 23.Rf1 ab5–+ 24.Qb5 Rc5 25.Qd3 Qa8 26.g4 Ra5 27.gf5 Ba6 28.Qc2 Be2 29.Qe2 ef5 30.Qg2 Qc6 31.e6 g6 32.h4? Qe6 33.Kh1 Qe3 34.h5 Qe4 35.Rf3 Qe1 36.Kh2 Qh4 37.Rh3 Qf4 38.Kh1 Qe4 39.Rf3 Kf7 40.hg6 hg6 41.Bc3 Rb5 42.Kh2 d4 43.Bb4 Rh8 44.Kg1 Qb1 45.Rf1 Qd3?? 46.Qb7= Kg8 47.Qc8 Kg7 48.Qc7 Kg8 49.Qd8 Kh7= 50.Qh4 Kg7 51.Qe7 Kg8 52.Qd8 Kh7 ½–½. joelynnturner – Rudolf, internet, 2007.

4.Bf4 Bg4 5.h3 Bf5 6.g4 Ne4 7.Ne4 Be4 8.f3 Bg6 9.h4 h6 10.h5=+ Bh7 11.e3 Nd7 12.c4 e6 13.c5=+ b6 14.Ba6 bc5=+ 15.bc5?? Qa5–+ 16.Qd2 Qa6 17.a4 Be7 18.Nh3 Bd8 19.a5 0–0 20.g5 hg5 21.Ng5 Bb1! 22.Kf2? Bd3 23.e4 Bg5 24.Bg5 de4 25.h6 g6 26.h7 Kh8 27.Bh6 Qc8 28.Qf4? Qd8?? 29.Qd6? ef3 30.Bf8 Nf8 31.Qf4 Bf5 32.Kf3 Qd5 33.Ke3 Qb3 34.Kf2 Qc2 35.Ke3 Qc3 36.Kf2 Qc2 37.Ke3 Qc3 38.Kf2 Qc2?? 39.Ke3= ½–½. maftei – urko, ChessWorld.net, 2009.

3.e3 Bf5

4.Bd3 Be6 5.Nf3 Bg4 6.0–0 Nf6 7.c3 Nbd7= 8.Nbd2 e5 9.de5 Ne5=+ 10.Nb3 Nf3–/+ 11.gf3 Bh3 12.Re1 Ne4! 13.fe4?? Qg5 14.Kh1 Qg2# 0–1. pieeater – urko, ChessWorld.net, 2009.

4.Nf3 Nd7 5.Be2 e6 6.0–0 Ngf6 7.c3 Bd6=+ 8.Re1 0–0 9.Nbd2 Re8 10.Nf1 e5 11.Ng3=+ Bg6 12.Bd3?? e4–+ 13.Nh4 ed3 14.Qd3 Bd3 15.a3 Bg3 16.fg3 Ne4 17.Nf5 Nc3 18.Nd6 Rf8 19.Nb7 Qc7 20.Nc5 Nc5 21.dc5 Qe5 22.Bb2 d4 23.ed4 Qd4 24.Kh1 Rfe8 25.Re8 Re8 26.h4 Re2 27.a4 Qf2 28.Bc3 Qg2# 0–1. pieeater – leighcastle, ChessWorld.net, 2009.

4.Nf3 e6 5.Nc3 Bb4–/+ 6.Qd2 Ne7 7.Rb1 Bc3 8.Qc3=+ Qc7 9.Ba3 Na6 10.Ne5 0–0 11.g4 Bg6 12.h4 h5 13.gh5 Bh5 14.Rg1 Rac8 15.Qd2 c5 16.e4 cd4=+ 17.Qd4 de4?? 18.Be7+– Qe7?? 19.Nc6! Rc6 20.Qg7 1–0. JimDog – Germanicus, ChessWorld.net, 2005.

3.e3 Nf6

4.Nf3 Bf5 5.Be2 Nbd7 6.0–0 e6 7.c4 Bb4 8.a3 Be7–/+ 9.Nc3 0–0 10.Re1 Bd6 11.Bd3 Bd3 12.Qd3 e5 13.de5 Ne5–/+ 14.Ne5 Be5 15.Bb2 dc4 16.Qc4 Qe7 17.e4 Rad8–+ 18.Na4 b5 19.Be5?? bc4 20.Bf6 Qf6 21.e5 Qf5 22.Nc5 Rd5 23.Nb7 Re5 24.Rec1 Re2 25.f3 Rfe8 26.Nd6 Qc5 27.Kh1 Qd6 28.h3 Qd2 29.Rg1–+ Rf2 30.Rad1 c3 31.Rd2 Rd2 32.Kh2 c2 33.Kg3 Rd1 34.Rd1 cd1Q (34...cd1Q 35.a4 Qe1 36.Kh2 Qe5 37.f4 Qf4 38.g3 Re2 39.Kg1 Qc1#) 0–1. pieeater – TeaCzar, ChessWorld.net, 2009.

4.Nf3 Bg4 5.Nbd2 e6 6.a3 Bd6 7.Be2 Nbd7 8.c4 0–0 9.0–0 e5 10.de5 Ne5 11.Bb2 Nf3 (11...Bf3 12.gf3 Nc4 13.Bc4 dc4 14.Nc4=) 12.Nf3 dc4 13.Bc4 Qe7 14.Be2 (14.Bf6 Qf6 15.Qd4 Qd4 16.Nd4 Rfd8=) 14...Rfe8 15.Qb3 Rad8 16.Rad1 h6 (16...Ne4 17.Bd4=) 17.Bd4+= b6 18.Qc4 Bd7 19.Nd2 Ng4 20.Bg4 Bg4 21.f3 Bd7 22.Ne4 Bb8 23.Qc3 Be5 24.Be5 Qe5 25.Qc4 Qe6 26.Qd4 Bc8 (26...Re7!?=) 27.Qd8+/– Rd8 28.Rd8 Kh7 29.Rfd1 Qb3 30.R8d3 Qb2 31.R1d2 Qe5 (31...Qa1 32.Kf2=) 32.Nd6 Be6 (32...Ba6 33.Nf7 Qe7 34.Nd6 Bd3 35.Rd3=) 33.f4 Qa1 34.Rd1 (34.Kf2 c5+/–) 34...Qf6 (34...Qb2 35.Re1=) 35.Ne4 (35.g3 Qb2 36.R1d2 Qc1 37.Kg2 Bb3=) 35...Qe7 36.Ng3 Bd5 (36...c5 37.bc5 bc5 38.Rc3+=) 37.e4+/– Be6 38.Rd6 (38.f5!? Bc4 39.Rd7+=) 38...c5+= 39.bc5 bc5 40.e5 Bb3 41.R1d2 (41.Rd7 Qe6 42.R1d3 Qc4=) 41...c4 (41...Qc7!? 42.Kf2 c4=) 42.Ne4+= Qc7 43.R2d5 Bc2 44.Nc3 Bd3 45.Kf2 Qe7 46.g3 (46.Kg3+=) 46...g5 (46...Qb7 47.Na4 Qb1–/+) 47.Nb5 gf4 48.Rd7 (worse is 48.gf4 Qh4 49.Ke3 Qh3 50.Kd4 Qh2–/+) 48...fg3 49.hg3 (49.Kg3 Qg5 50.Kf3 Qh5 51.Ke3 Bf5–+) 49...Qg5 (better is 49...Qe6!? 50.Nd4 Qh3 51.Rf7 Kg8=) 50.Rf7+/– (50.Na7 Qd2 51.Kg1 Qe1 52.Kh2 Qe2 53.Kh3 Bf5 54.g4 Qg4 55.Kh2 Bd7–+; 50.Ra7?? Qf5 51.Ke3 Qe4 52.Kd2 Qg2 53.Kc3 Qd5–+) 50...Kg6 51.Rf6 (51.Ra7 Qd2 52.Kg1 Qe1 53.Kh2 Qf2 54.Kh3 Bf1 55.Kh4 Qh2 56.Kg4 h5 57.Kf3 Qe2 58.Kf4 Qf2 59.Ke4 Bg2) 51...Kg7 52.Rf4 (52.Na7? Qd2 53.Kg1 Qe3 54.Kh2 Qa7–+) 52...Qh5 53.Rd7 (53.Na7?? Qh2 54.Ke3 Qg1 55.Kd2 Qg2 56.Kc3 Qd5–+) 53...Kg8 54.Nd4 (54.Na7? Qh2 55.Ke3 Qg3 56.Rf3 Qe5 57.Kf2 Qc5 58.Ke1 Qa3 59.Rd8 Kg7 60.Rd7 Kg6 61.Rg3 Kh5–+) 54...Qe5 55.Rd8 Kg7 56.Rdf8 (56.Rg4 Kf7=) 56...Bg6 (better is 56...c3!?–/+) 57.Rc8= Bd3 58.Rc6 Qb8 59.Ne6 Attacks the isolani on c4 59...Kg6 60.Nc5 Kg7 61.Ne6 Kg6 62.Nd8 (62.Nf8 Kg7 63.Ne6=) 62...Kg7 (62...Kh7 63.Ne6 Qb2 64.Ke3 Qe5 65.Kd2 Qa5 66.Ke3 Bf5+= (worse is 66...Qa3 67.Rc7 Kg8 68.Rf8 Qf8 69.Nf8 Kf8 70.Ra7+/–)) 63.Rg4?? (better is 63.Ne6 Kg6=) 63...Kh7–+ 64.Nf7 (64.Rh4 Qd8 65.Rch6 Kg7 66.Ra6–+) 64...Qb2 65.Kg1 Qc1 66.Kf2 (66.Kh2 Qd2 67.Kg1 Qe1 68.Kh2 Qf2 69.Kh1 Qf7 70.Rgc4 Bc4 71.Rc4 Qc4–+) 66...Qd2 (better is 66...Qf1 67.Ke3 Qe2 68.Kd4 Qg4 69.Kc5 Qf5 70.Kd6 Qf6 71.Kd5 Qf7 72.Kd6 c3–+) 67.Kf3 (67.Kg1 Qd1 68.Kg2 Qg4 69.Rf6 Qe2 70.Kh3–+) 67...Qe2 68.Kf4 Qe4 0–1. Tkachev,Ivan (1950) – Pischikov,Vadim, St Petersburg Mai op, 2008. (=1.d4 d5 2.b4 c6 3.e3 Nf6)

3.Nf3 e5

4.de5 Bb4+= 5.Bd2 Qe7 6.c4 (6.c3 Bc5+=) 6...Be6 (6...dc4 7.Bb4 Qb4 8.Qd2–/+) 7.Qb3 (7.cd5 Bd5 8.Bb4 Qb4 9.Nbd2 Qc3+=) 7...Na6 (7...a5 8.cd5 Bd5 9.Qb2+=) 8.e3 Nh6 (8...Rd8 9.Bb4 Nb4 10.a3+=) 9.Be2 (9.Bb4 Nb4 10.Nbd2 a5=) 9...0–0 10.0–0 Rad8 11.a3 (11.Bb4 Nb4 12.Nbd2 c5+=) 11...dc4 (11...Bc5 12.Rc1+=) 12.Bb4 (12.Bc4 Bc4 13.Qc4 Bd2 14.Nbd2 Nc5=) 12...cb3 13.Be7 b2 14.Nc3 ba1Q 15.Ra1 Nc7 16.Ne4 Nf5 17.Bd8 Rd8 18.Rc1 h6 19.Kf1 Kf8 20.g4 Ne7 21.Nd4 Bd5 22.Nd6 b6 23.Rd1 g5 (23...Ne6 24.e4 Nd4 25.Rd4=) 24.Bf3 (24.h3 Ne6+=) 24...c5= 25.Bd5 Ncd5 26.Nf3 (26.N4f5 Nc3 27.Rd3 Nf5 28.gf5 Nb5=) 26...Rd7 (26...f6 27.e4 Nc3 28.Rc1=) 27.Ke1 a6 28.h4 gh4 29.Nh4 b5 (29...f6 30.ef6 Nf6 31.f3=) 30.Ne4 c4 (30...Rc7+=) 31.Nf5 (31.Nc5 Rc7 32.Na6 Ra7+=) 31...Nf5= 32.Nc5 Rc7 33.Rd5 Nh4 (33...Ne7 34.Rd8 Kg7 35.Na6+=) 34.e6 (34.Na6 Ra7 35.Nb4 Ra3 36.Rb5 Rb3=) 34...Ke7 35.ef7 Rc6 36.Nd7 (36.Nb7 Nf3 37.Ke2 Rf6+=) 36...Ng6 37.f4 Kf7 38.f5 (38.Kd2 Ke8+=) 38...Ne7 39.Rd4 Ke8 40.Kd2 (40.Ne5 Rf6+=) 40...h5 41.f6 (worse is 41.gh5 Nf5 42.Rd5 c3 43.Kc1 Ne3 44.Re5 Kd7 45.Re3 Rh6+=) 41...hg4 42.f7 Kf7 43.Ne5 Ke6 44.Nc6 Nc6 45.Rg4 a5 46.Rg6 Kd7 47.Rg5 (47.Rg7 Kd6=) 47...b4 48.ab4 (48.e4 Kc7+=) 48...ab4= 49.Rc5 c3 50.Kc2 ½–½. Taulien,Hans_Juergen (2350) – Serfling,Rainer (2360), remoteschach.de, 2003.

4.Ne5 Bb4 5.c3 Bd6 6.Bf4 f6 7.Nd3 Bf4 8.Nf4 Ne7 9.e3 0–0 10.Bd3+= g5 11.Ne2 Bf5 12.0–0 Re8 13.Ng3 Bd3 14.Qd3 Nd7 15.Nd2 b6 16.f3 a6 17.e4+/– Ng6 18.Qc2 Nf4 19.Nf5 Ne2 20.Kh1 Nf4 21.Rab1 Re6 22.g3 Ng6 23.Qb3 Ne7 24.Ne7 Qe7 25.ed5 cd5 26.Qd5 Rd8 27.Rfe1 Nc5 28.Qc4 b5+/– 29.Re6 Ne6 30.Qe2 f5 31.Re1 Kf7 32.a4 ba4 33.Qc4 Qd7 34.Re5 f4 35.Ne4 Re8? 36.Ng5 Kf6 37.Ne6 Re6 38.Re6 Qe6 39.Qa4 fg3+= 40.Kg2 gh2 41.Kh2 Kf5 42.Qc2 Kf4 43.Qg2 Qc4 44.Qg4+/– Ke3 45.Qe4 Kd2+= 46.d5 Qc3 47.d6 h5 48.Qf4 Qe3?? 49.Qe3+– Ke3 50.d7 Kf3 51.d8Q Kg4 (51...Ke4 52.Qe7 Kf5 53.Qc5 Kg4 54.Qc4 Kf5 55.Qa6+–) 1–0. SuperForte5 – ChessMaster2000, 1994.

4.Ne5 Bb4 5.Bd2 Bd6 =.

3.Bf4 e5

4.Be5 Bb4 5.c3 Bf8 6.Nf3 =.

4.Be5 Nd7 5.c3 Ne5 6.de5 Qc7 7.Nf3 f6 8.Qd4 fe5 9.Qe5 Qe5 10.Ne5 Bd6 11.f4 Nh6 12.Nd2 0–0 13.g3 Be5 14.fe5 Ng4 15.Nf3 Ne3 16.Kd2 Nc4 17.Kc2 Bf5–/+ (18.Kc1 Rae8–/+) 0–1. Munkwitz,Wolfgang – Woelfelschneider,Peter, TT–18.12 ETC, 2005.

4.Be5 Nd7 5.Bf4 Ngf6 6.c3+= Be7 7.e3 0–0 8.Bd3 Re8 9.Qf3 Bf8 10.Qg3 g6 11.Be2 Ne4= 12.Qf3 Bg7 13.Bd3 Ndf6 14.h3 g5 15.Be5+= g4 16.Bf6 gf3 17.Bd8 fg2 18.Rh2 Rd8 19.Rg2 Kf8 20.f3 Nd6 21.Bh7 Be6 22.Nd2 Bf6 23.0–0–0 Nf5 24.Nf1 Nh4 25.Rg3 Ng6 26.Bg6 fg6 27.Rg6 Kf7 28.Rh6 Rg8 29.Ne2 Rg6? 30.Rg6 Kg6 31.Nf4 Kf5 32.Ng3 Kg5 33.Ne6 Kh4 34.Nf5 Kh3 35.Rg1 Re8 36.Nf4 Kh2 37.Rg2 Kh1 38.Ng3# 1–0. maftei – nickbarletta, ChessWorld.net, 2009.

2.d4 Nc6

3.a3 e5 4.e3 a6 5.de5 Ne5 6.Bb2 =.

3.a3 g6 4.e3 Bg7 5.Bb5 Bd7 6.Bc6 Bc6 7.f4 e6 8.a4 a5 (8...Bd7 9.Nf3+=) 9.b5= Bd7 10.Ba3 b6 11.h4 (11.Nf3 c6 12.Nc3 cb5 13.Nb5 Bb5 14.ab5 Qc7=) 11...h5 12.Nf3 f6 (better is 12...Nh6!?+=) 13.Qd3+= f5 14.Rh3 c6 15.Rg3 Rh6 16.Nbd2 cb5 17.ab5 Qc7 18.Rb1 (18.Ne5!?+=) 18...Rc8+= 19.Bb2? (better is 19.Rb2!?+=) 19...Qc2–+ 20.Qc2 Rc2 21.Kd1 Rc8 22.Rh3 (better is 22.Ng5–+) 22...Bb5 23.Ba3 Ba4 24.Ke1 b5 25.Rc1 (25.Bc5 Nf6–+) 25...Rc1 26.Bc1 Kf7 27.Rh1 Ne7 28.Kf2 Rh8 29.Bb2 Rc8 30.Rc1 Rc1 31.Bc1 Bf8 32.Ba3?! b4 33.Bb2 Nc8 34.Ne5 Kf6 35.g3 Nb6 36.Ke2 Bb5 37.Kd1 Nc4 38.Ndc4 dc4 39.Bc1 a4 40.Nf3 c3 41.Kc2 Bc4 42.Ng1 Bd6 43.Nf3 Bc7 44.Ne5 Bd5 45.Nd7 Ke7 46.Nc5 a3 47.Nb3 Be4 48.Kd1 a2 49.Ke2 Bc2 50.Na1 b3 51.Ba3 Bd6 52.Bc5 b2 53.Nc2 b1Q 54.Bd6 Kd6 55.Kd3 Qb2 56.d5 Kd5 0–1. Thrustnicely – Epenz, playchess.de, 2003. (=1.d4 d5 2.b4 Nc6)

3.Ba3 e6 4.b5 Ba3 5.bc6 Bb2–+ 6.cb7 Bb7 7.c4?? Ba1 8.Qa4 Qd7 (9.Qb4 Rb8 10.cd5 a5 11.de6 fe6–+) 0–1. gregkitty – mgoodrich (1905), net–chess.com, 2006.

3.Bb2 Nb4 4.Nc3 Bf5 5.Rc1 c6 6.Nf3 Nf6 7.g3 e6 8.Bg2 Be4 9.0–0 Bf3 10.Bf3 Ne4 11.Be4 de4 12.a3 Nd5 13.Nd5 ed5–/+ 14.a4 Bd6 15.c3 0–0–+ 16.f4 Qb6 17.e3?? Qb2 18.Rf2 Qb6 19.Rb1 Qa5 20.Rb7 Rab8 21.Rb8 Rb8 22.Qc2 Ba3 23.Kg2 Rb2 24.Qd1 Qc3 25.Rb2 Qb2 26.Kh3 Qb3 27.Qb3+– Be7 28.Qb8 Bf8 29.Qa7 g6 30.Qa8 c5 31.dc5 Kg7 32.c6 1–0. I need chocolate – kong, ChessWorld.net, 2005.

3.b5 Na5 4.Bd2 Nc4 5.e3 a6 6.Bc4 dc4 7.ba6 ba6 8.c3 Qd5 9.Qf3 c6 10.e4 Qd7 11.e5 f6 12.Bf4 Nh6 13.Ne2 Qb7? 14.Bh6+– gh6 15.Qh5 Kd8 16.Nd2 Qb2 17.Rb1 Qa2 18.Qf3 Bd7 19.ef6 ef6?? 20.Qf6 Ke8 21.Qf4 Rg8 22.0–0 Qa5 23.Qe3 Be7 24.Qh6 Rh8? 25.Ne4 Qa3 26.Nf6 Kd8? 27.Nd7 Kd7 28.Qh3 Kd8 29.Nf4 c5 30.Ne6 Ke8 31.Nc7 Kf7+– 32.Na8 Ra8 33.Qh7 Ke8 34.Rbe1 Ra7+– 35.Re6 Qc3 36.Rfe1 Rb7 37.Re7 Re7 38.Qe7# 1–0. Rudolf – olliemurphy, internet, 2007.

3.c3 (--> 2.c3 Nc6 3.d4).

3.e3 Nb4–/+ 4.Ba3 Nc6 5.Nc3 Nf6 6.f4 Bf5 7.Nb5 Be4 8.g4?? Bh1–+ 9.g5 Ne4 10.Nf3 a6 11.Bd3 ab5 12.Bb2 Qd7 13.Bb5 Qh3 14.Qe2 Bf3 15.Qf1 Qf1 16.Kf1–+ Bg4 17.h4 Ng3 18.Kg2 Nf5 19.c4 Ne3 20.Kf2 Nc4 21.Kg3 Nb2 22.Kg4 Ra5 23.Be2 Nd4 24.Bf1 h5 25.Kg3 Ra3 26.Kf2 Rf3 27.Ke1 Rf4 28.Rc1 c6 29.a4 Na4 30.Rb1 e5 31.Rb7 Nf3 32.Kd1 Rh4 33.Rb8 Ke7 34.Rb7 Kd6 35.Ke2 e4 36.Kf2 Ke5 37.Kg3 Rg4 38.Kf2 Bc5 39.Ke2 Ra8 40.Rf7 Rg5 41.Kd1 Rg1 42.Ke2 Nc3# 0–1. dwparsox (1920) – olo (2060), net–chess.com, 2008.

3.e3 e5 4.de5 Ne5 5.Qh5 Qd6 6.Bb5 Bd7 7.Nc3 Bb5 8.Nb5 Nc4 9.Nd6 Nd6 10.Qd5 1–0. bookscout – pulaster, gameknot.com, 2012. (=1.d4 d5 2.b4 Nc6)

3.g3 Nb4–/+ 4.c3 Nc6 5.f4 e6 6.f5 e5 7.de5 Ne5 8.Nf3 Nf3 9.ef3 Bf5 10.Na3 c6 11.g4 Qh4 12.Ke2 Be6 13.Rb1 b5 14.c4 b4 15.Rb4?? Bb4 16.cd5 Bd5 17.Ke3 Qe7 18.Kf2 Qh4 19.Ke2?? Qe7 20.Kf2 Bc5 21.Kg2 Ba3 22.Bf4 h5 23.Qa4 hg4 24.Kg3 Bf3 25.Rg1 Bd6 26.Bg2 Qh4# 0–1. dwparsox (1920) – ural (1795), net–chess.com, 2008.

3.b5 Nb4??

4.a3 +–.

4.a4?? Bf5+= 5.Na3 Qd6 (5...e5!? 6.c3 ed4 7.cb4 Bb4 8.Bd2 Qe7+/–) 6.c3+– 0–0–0 (6...e5 7.Nf3 (worse is 7.cb4 Qb4 8.Bd2 Qd4+/–) 7...e4 8.Nd2+– (8.cb4 ef3 9.Nc2 Bc2 10.Qc2 Qb4 11.Qd2 fg2 12.Bg2 Nf6+=)) 7.Qb3 (7.Nf3 e6+–) 7...a5 (better is 7...e5 8.Bd2 ed4 9.Qb4 dc3 10.Qc3 Nf6+–) 8.ba6?? (better is 8.Nf3+–) 8...Na6+= 9.Rb1?? (better is 9.Nf3+=) 9...Bb1–/+ 10.Qb1 e5 11.Nb5 Qf6 (better is 11...Qe6!?–/+) 12.Nf3= ed4 13.Nfd4 Nh6?? 14.f3?? Qh4?? 15.g3+/– Qf6 16.Bh3?? Kb8–/+ 17.Bf4 Bc5 18.Nb3 Rhe8?? 19.Bc7?? Nc7–+ 20.Nc5 Qe5 21.Ne4 de4 22.f4 Qd5 23.Nc7 Qd2 24.Kf1 Qd1 25.Qd1+= Rd1 26.Kg2 Rd2?? 27.Ne8+– Re2 28.Kf1 Rc2 29.Ng7 e3? 30.Bf5 Rf2?? 31.Ke1+– Nf5 32.Nf5 e2 33.Kf2 1–0. Thrustnicely – BigJim, playchess.de, 2004. (=1.d4 d5 2.b4 Nc6)

4.e4?? de4–/+ 5.Nc3 Bf5 6.Be3 –/+. jazzy82 – ScorpKA, internet, 2008.

2.d4 e5

3.a3 (--> 1.b4 e5 2.a3 d5 3.d4).

3.Ba3? Nc6 4.b5? (better is 4.de5 Ne5 5.Qd4–/+) 4...Ba3–+ 5.bc6 Bb2 6.cb7 Bb7 7.Nd2 Ba1 (7...ed4?! 8.Rb1 Bc3 9.Rb7=; 7...Bd4?! 8.Rb1 Rb8 9.e3–+) 8.Qa1 ed4 9.Qd4 Nf6 10.Qe5 Qe7 11.Qe7 Ke7 12.g3 (12.Ngf3 Bc8–+) 12...d4 13.f3 (13.Ngf3 Rab8–+) 13...Nd5 14.Kf2 Rhd8 15.Ne4 (15.Nh3 Nc3–+) 15...Rab8 16.h4 (16.Nh3 Bc6 17.Bg2 Rb2–+) 16...Ba8 17.a4 (17.g4 Rb2–+) 17...Rb2 18.c4 (18.h5–+) 18...dc3 19.Nc3 Nc3 20.g4 (20.h5 Rd1–+) 20...Rd4 21.Rh3 Ra4 22.h5 h6 23.Rg3 Nd1 24.Kg2 Rb1 25.e4 Ne3 26.Kf2 Nf1 27.Rh3 Ra2 28.Ne2 Rbb2 29.Kf1 Re2 30.g5 Rec2 31.Kg1 Rc1# 0–1. oldbull11 – glovio (1965), gameknot.com, 2014. (=1.d4 d5 2.b4 e5)

3.Ba3? ed4 4.Qd4 Nf6 5.f3 Bd6 (5...Nc6 6.Qe3 Qe7 7.Qe7 Be7 8.c3–/+) 6.g3 (6.b5 Ba3 7.Na3 Qe7–/+) 6...Qe7–+ 7.Nh3?? (better is 7.Qb2–+) 7...Be5 (8.b5 Bd4 9.Be7 Ba1 10.Bf6 Bf6–+) 0–1. RTitov – pierre (2070), internet, 2006.

3.b5 (--> 1.b4 e5 2.b5 d5 3.d4).

3.c3 (--> 1.b4 e5 2.c3 d5 3.d4).

3.Nf3 Bb4?! 4.c3 Be7 5.de5 =+.

3.e3?? Bb4–/+

4.c3 Bd6 5.de5 Be5 6.c4 Ba1 7.cd5 Nf6 8.f3 Qd5 9.Qa4 Bd7 10.e4 Ba4 11.ed5 0–0 12.Ba3 Re8 13.Ne2 Nd5 14.g4 Bb5 15.Nd2 Nf4 16.Ne4 Ne2 17.Be2 Be2 18.Ke2 Bd4 19.Rd1 c5 20.f4 Re4 21.Kf3 Re3 22.Kf2 Ra3 23.Kg2 Ra2 24.Kh3 Nc6 25.g5 g6 26.f5 gf5 27.Rf1 Be5 28.Rf5 Re8 29.Kh4 Nd4 30.Kh5 Nf5 31.h3 Ra4 32.h4 Kg7 33.g6 hg6 34.Kg5 f6# 0–1. terrybx – kode (2470), net–chess.com, 2014.

4.c3 Bd6 5.de5 Be5 6.Nf3 Bf6 7.Bb2 (7.Bb5 c6 8.Bd3 Ne7–/+) 7...Bg4 (7...Ne7 8.Bd3–/+) 8.Bb5 (8.Be2 Ne7–/+) 8...c6 9.Be2 Ne7 10.Qb3 b5 (10...Qc7 11.Nbd2–/+) 11.Nbd2 (11.a4 ba4 12.Ra4 Bf3 13.Bf3 Nd7–/+) 11...Nd7 12.0–0 0–0 13.e4 (13.Qb4 Ne5–/+) 13...Nc5 (13...Re8 14.Rfd1–/+) 14.Qb4–+ Bf3 (14...Ne4 15.Ne4 de4 16.Qe4–/+) 15.Bf3 Nd3 16.Qb3 (16...b4 17.Nb1–+). juancabeta – Fabbri (1690), Internet, 2005.

3.de5 Bb4

4.c3 Be7 5.e4 de4 6.Qa4 Nc6 7.Qe4 Be6 8.c4 Nf6 9.Qf4 Ng4 10.Bb2 g5 11.Qe4 Bc5 12.Nh3 Bb4 13.Ke2 Na5 14.f4 Bc4 15.Kf3 Qd1 16.Be2 Be2 17.Qe2 Nh2!! 18.Rh2 g4 19.Kf2 Bc5 20.Qe3 Qc2 21.Kg3 Be3 22.Bc3 Rg8 23.Ng5 Qf2 24.Kg4 Rg5! 25.fg5 Qf4 26.Kh3 Bf2 27.Ba5 Qg3# 0–1. Golem01 – SnailSCP, computer chess game, 2000.

4.Bd2 Nc6 5.Bb4 Nb4 6.c3 Nc6 7.Nf3 Nge7 8.e3 Ng6 (9.Bb5 Bg4–/+) 0–1. gash – NZ cricketer, ChessWorld.net, 2005.

4.Bd2 Qe7 5.Nf3 Nc6 6.a3 Bd2 7.Qd2 Bg4 8.Qd5 Rd8 9.Qb5 Bf3 10.gf3 a6 11.Qb7?? (better is 11.Qb2–/+) 11...Qd7–+ 12.Nc3 (12.Qc6 Qc6 13.Nd2–+) 12…Qd2# 0–1. Ofner,Sebastian (2000) – Boxberg,Marc (2045), remoteschach.de, 2004. (=1.d4 d5 2.b4 e5 3.de5 Bb4)

4.Nd2 Nc6 5.Bb2 d4 6.a3 Ba5 7.c3?? dc3–+ 8.Bc3 Bc3 9.Rc1 Bd2 10.Qd2 Qd2 11.Kd2 Ne5 12.Nf3 Nf3 13.ef3 Be6 14.Rc7 Rd8 15.Bd3 Rd7 16.Rhc1 Nf6 17.Rc8 Rd8 18.R8c7 0–0 19.Rb7 Rd6 20.g4 Rfd8 21.Rc3 Nd5 22.Rc5 Nf4 23.Rc3 Nd3 24.Ra7 Nf2 25.Ke2 Rd2 26.Ke1 Ra2 27.Re7 Rd1# 0–1. jordan2delta – Fabbri (1760), internet, 2006.

4.Nd2 Nh6 5.Ngf3 –/+.

4.c3 Bc5

5.e3 Nc6 6.Nf3 f6 (6...Bg4 7.Bb5+=) 7.Qa4 Bd7 8.Qb5 (better is 8.Qb3+=) 8...b6?? (8...Nd4 9.Qc5 Nc2 10.Kd2 Na1 11.Bb2 fe5 12.Ba1=) 9.Qd3?? (better is 9.e6+–) 9...Ne5 (9...Bg4 10.ef6 Nf6 11.Be2+=) 10.Qd5 (10.Ne5!? fe5 11.Qd5=) 10...Ne7+= 11.Qb3 Nf3 12.gf3 Bc6 13.Bg2 Bd5 14.Qa4 c6 15.Qg4 0–0 16.Rg1 g6 (16...f5 17.Qh4–/+) 17.h3 h5 (17...Qd6 18.f4–/+) 18.Qg3+= Bd6 19.Qh4 (19.f4!?=) 19...Nf5–/+ 20.Qa4 b5 21.Qc2 Rc8 (21...Bh2 22.Rh1 Be5 23.e4–/+) 22.e4 Re8 23.Bh6?? (better is 23.a4 Bh2 24.Rh1+=) 23...Nh6–+ 24.Nd2 Bc4 (24...Qa5 25.Nb3 Qa3 26.Bf1–+) 25.h4? (25.Nc4 bc4 26.Bf1 Kh7–+) 25...Bh2 (better is 25...Be6!? 26.0–0–0 Qa5 27.e5 Qa3 28.Kb1–+) 26.Rh1 Bf4 27.Rd1 (27.Nc4 bc4 28.Bf1 Qd5–+) 27...Qe7 (27...Bd3!? 28.Qb3 Kh7 29.Bf1–+) 28.Bh3 (28.Nc4 bc4 29.Bf1–+) 28...g5 (28...Be6 29.Be6 Qe6 30.Rg1–+) 29.a4?? (better is 29.Bc8 Bd2 30.Qd2 Rc8 31.hg5 fg5 32.Rh5=) 29...g4 (29...Bd2 30.Qd2 Rcd8 31.Bd7–+) 30.fg4 (30.Nc4 bc4 31.Rg1 f5–+) 30...hg4 31.Bg2 g3 (better is 31...Bd5! 32.Rb1–+) 32.Nc4 bc4 33.fg3 (33.Qe2 gf2 34.Qf2 Be5–+) 33...Bg3 34.Kf1 (34.Ke2 Rcd8–+) 34...Rf8 (better is 34...Ng4!? 35.Ke2 Nf2 36.h5–+) 35.Rh3 Be5 36.a5 f5 37.a6 (37.Ke1 Rcd8–+) 37...fe4 38.Ke1 Qg7 39.Be4 (39.Rd2 Bg3 40.Kd1 Rce8–+) 39...Qg4 (39...Bg3 40.Kd2 Rf2 41.Kc1 Bf4 42.Kb2 Rb8 43.Ka3 Qe7 44.Ka2–+) 40.Bh7 Kg7 (40...Kh8 41.Re3 Qg1 42.Kd2 Rf2 43.Kc1 Rc2 44.Kc2 Qe3–+ (44...Kh7?! 45.Rg1 Re8 46.Rb1=)) 41.Re3 (41.Qg6 Qg6 42.Bg6 Kg6 43.h5 Kg5 44.Ke2–+) 41...Qh4 (better is 41...Qg1 42.Kd2 Rf2 43.Kc1 Rc2 44.Kc2 Qe3 (44...Kh7?! 45.Rg1 Re8 46.Rb1=) 45.Rd7 Nf7–+) 42.Ke2 Rf2 43.Ke1 Rc2 44.Kf1 Qf2 (44...Qh1) 0–1. Franziska,Franzi – Orion,Martin, remoteschach.de, 2002.

5.e3 Nc6 6.f4 Nh6 7.Nf3 0–0. freeman_333 – pierre, internet, 2007.

5.Be3? Be3–+ 6.fe3 Bf5 7.Qd4 (7.Nf3 Ne7–+) 7...Nc6 8.Qf4 Nge7 9.g3 (9.Nf3 Be4–+) 9...Be4 10.Nf3 Ng6 11.Qg4 Nce5 12.Ne5 (12.Qh5 Nc4–+) 12...Bh1 (12...Bh1 13.Ng6 hg6 14.Qa4 c6–+; 12...Ne5?! 13.Qg7 Ng6 14.Rg1–+) 0–1. Maim – Wall,Bill, Microsoft Gaming Zone, 1996.

5.Nf3 c6 6.e3 (6.Nbd2 Bf5=+) 6...Bg4=+ 7.Nbd2 Nd7 8.Be2 (8.Qb3 Ne7=+) 8...Qc7 9.Qb3 (9.Bb2 Ne5 10.c4 Bf3 11.Nf3 Nf3 (11...Nc4? 12.Bg7 Bb4 13.Kf1+–) 12.Bf3 Ne7 (12...dc4?? 13.Bg7 Bb4 14.Kf1+–) 13.cd5 Nd5 14.Bd5 cd5=) 9...Ne7–/+ (9...Ne5 10.Ne5 Be2 11.Ke2+/–) 10.c4 Ne5 11.Ne5 (11.Bb2 Nf3 12.gf3 Be6=+) 11...Be2 12.Ke2 (12.Nf7 Bc4 13.Nc4 Kf7–/+ (13...dc4?! 14.Qc4 Rf8 15.Qc5 Kf7 16.e4=)) 12...Qe5 13.Bb2 Qh5 14.Kf1 (14.Nf3 0–0–/+) 14...dc4 15.Qb7 0–0 (15...Rd8 16.Nf3 (16.Bg7?? Rd2 17.g4 Qd5–+) 16...0–0 17.Bd4–/+) 16.Qa6 (16.Nc4 Rab8 17.Qa6–+) 16...Rfb8–+ 17.Nc4 (17.Bd4 Bd4 18.ed4 Rb2–+) 17...Qf5 18.Ke2 Qg4 19.Kf1 Rb5 (19...Qe4 20.Nd2 Qc2 21.Be5 Qd2 22.Bb8 Rb8 23.Qe2–+) 20.Rc1 Rd8 21.Bd4 Rd4 22.ed4 Qd4 (22...Bd4 23.Qa4 Qf5 24.f3 Qd3 25.Ke1 Bc3 26.Kf2 Qd4 27.Kf1–+) 23.Ke1 Qf2 (24.Kd1 Qd4 25.Nd2 Bb4–+) 0–1. Icic – Fritz,Harry, corr SOK–98–130, 2000.

5.Nf3 c6 6.Bg5 f6 7.Bh4 Nd7 8.Nbd2 Qe7 9.ef6 Ngf6 10.e3 0–0 11.Nd4 Ne5 12.Be2 Bd6 13.0–0 Ng6 14.Bg3 (14.Bg5 h6 15.Qc2 Qf7 16.Bf6 Qf6+= (worse is 16...gf6 17.c4+=)) 14...Bg3–/+ 15.hg3 Ne5 16.Qc2 Nfg4 17.Bg4 Ng4 18.Rae1 c5 19.N4f3 Qf6 20.e4 Qh6 (20...Be6 21.ed5 Bd5 22.Qa4+=) 21.Qd3 (21.Qb3 b6 22.ed5 Bd7+/–) 21...d4 22.cd4 cd4 23.Rc1 Be6 24.Rc2 a6 25.Rfc1?? (25.Qd4 Rad8 26.Qb4 Rf7+=) 25...b5?? (25...Qh1 26.Kh1 Nf2 27.Kh2 Nd3 28.Rb1–/+) 26.Rc6?? (better is 26.Qd4 Qh5 27.Rc6+/–) 26...Qh1!–/+ 27.Kh1 Nf2 28.Kg1 Nd3 29.Ra1 Bg4 (better is 29...Ba2!? 30.Nd4 Nb4–+) 30.Nd4–/+ Rfc8 31.N2f3 Rc6 32.Nc6 Re8 33.Rd1 Bf3 (better is 33...Nb2!? 34.Rd4 Nc4+=) 34.gf3+= Ne5 35.Nd4 (35.Ne5!? Re5 36.Rd8 Kf7 37.Rd7 Kf8 38.Kf2+=) 35...Rd8 36.Kf2 g5 37.Ke2 h5 38.f4 gf4 39.gf4 Ng4 40.e5 Kf7 41.Kf3 b4 42.Rd2 a5 43.Ke4 h4 44.Rc2 (44.e6 Kf6 45.Kf3+=) 44...h3+= 45.Nf3 Ke7 46.Nh2 (46.f5!? Rh8 47.Rc7 Kd8 48.Ra7+=) 46...Nh2= 47.Rh2 Rh8 48.f5 a4 49.Kd5 White plans e6 49...b3 50.a3 Rh4 51.f6 Kf7 52.Rf2?? (better is 52.Kd6–/+) 52...h2–+ 53.e6 Kf8 54.Kd6 White intends e7 (54.e7 Kf7 55.Kc5–+) 54...h1Q 55.e7 Kf7 56.Rd2 Qh2! 57.Rh2 Rh2 58.Kd7 Rd2 59.Kc6 b2 60.Kb5 (60.e8Q Ke8 61.f7 Kf7 62.Kb7 b1Q 63.Kc6 Qc1 64.Kb5 Rb2 65.Ka4 Qc4 66.Ka5 Qb5) 60...b1Q 61.Ka4 (61.Ka6 Rd6 62.Ka7 Rd7 63.Ka6 Qb7 64.Ka5 Rd5 65.Ka4 Qb5) 61...Rd5 (61...Rd7 62.e8Q Ke8 63.f7 Kf7 64.Ka5 Ra7) 62.e8Q Ke8 63.f7 Kd7 64.f8N Kc8 65.Nd7 (65.Ne6 Qb5) 65...Rd7 (65...Rd7 66.Ka5 Ra7; 65...Qb5) 0–1. Bezukladov,OD – Matjukhin,S, Moscow op2, 1995. (=1.d4 d5 2.b4 e5 3.de5 Bb4 4.c3 Bc5)

5.Nf3 Nc6 6.Nbd2 =+.

5.Nf3 Nc6 6.e3 Bg4 7.Be2 Bf3 8.Bf3 Nge7 9.0–0 Ne5 10.Bb2 0–0 11.Nd2 Nf3 (11...c6 12.c4 d4 13.Nb3 Nc4 14.Nc5 Nb2 15.Qc2+=) 12.Nf3 (12.Qf3 b5=+) 12...Qd6 13.Qb3 Qa6 14.Rac1 b5 15.Nd4 (15.Rfe1 Rfe8–/+) 15...c6 (15...Rab8 16.Rfe1–/+) 16.Ra1 Bd6 17.a4 ba4 18.Ra4? (better is 18.Qd1–/+) 18...Bh2!–+ 19.Kh2 Qf1 20.Qb7 Ng6 21.Ra1 Qf2 22.Ba3 Ne5 23.Qb2 Ng4 24.Kh3 Qe3 25.Kg4 f5! 26.Kh4 g5 27.Kh5 Qg3 28.Bf8 Qh4# (28...Kf8 29.Nf5 Qh2 30.Kg5+–; 28...Rf8 29.Nf5 Rf5 30.Qb8 Qb8 31.Ra4 Qh2 32.Kg4 Rf4 33.Rf4 Qf4 34.Kh5 Qh4#) 0–1. M8IN3 – Sissi, Live Game Caissa's Web, 2005.

5.Nf3 Ne7 6.e3 0–0 7.c4 c6 8.Nc3 Be6 9.cd5 Nd5 10.Nd5 Bd5 11.Bd2 Be4 12.a4 Qe7 13.Bc3 Nd7 14.Bc4 (better is 14.Nd2!? Bg6 15.Nf3–/+) 14...Bf3 15.Qf3 (better is 15.gf3 Ne5 16.Be2–+) 15...Ne5?? (better is 15...Bb4 16.Kd2 Ne5–+) 16.Qe4 Rfe8 17.Bb3 Bb4 18.Bb4 (18.Bb4 Qb4; 18.Qb4 Nd3 Double attack (18...Nd3 Decoy)) 18...Qb4!? 19.Qb4 Nd3 20.Ke2 Nb4 21.a5 Na6 22.Rhd1 Nc5 23.Rab1 Ne4 (23...b6 24.Rd6 Rec8 25.ab6 ab6 26.Bc2–/+) 24.Rbc1+= Rab8 (24...Kf8!?+=) 25.Rd7= Rf8 26.f3 Nf6 27.Re7 g5 28.Rd1 a6 29.e4 (29.Ba2 b6 30.Rb1 ba5 31.Bf7 Kh8=) 29...b6 30.Rb1 ba5 (30...Kg7 31.e5 Nh5 32.ab6 Nf4 33.Kf2=) 31.Bf7+= Kh8 32.Rc1 Ng8 33.Bg8 Kg8 34.Rc6 Rb2 35.Ke3 Rg2 36.Ra6 Ra2 37.Raa7 Ra3 (37...Rh2 38.Rg7 Kh8 39.Rg5+/–) 38.Kd4 Rff3 39.Rg7 Kf8 40.Rh7 (40.Rg5?! Rh3+/–) 40...Kg8 41.Rag7 Kf8 42.Rg5 Rh3 (42...Rad3 43.Ke5 Rh3 44.Ra7+/–) 43.Rh3+– Rh3 44.Ra5 Rh2 45.Rf5 (45.Kd5 Rh6+–) 45...Ke7 46.Re5 (46.Rb5 Ra2+–) 46...Kf6+/– 47.Rf5 Ke7 48.Kd5 (48.Rb5 Ke6+–) 48...Ra2 49.Re5 Kd7 50.Rh5?? (better is 50.Kd4+/–) 50...Ra5–+ (50...Ra5 51.Kd4 Rh5–+) 0–1. Korn,Lothar (1700) – Thoma,Theo (2100), remoteschach.de, 2009.

5.Nf3 Ne7 6.e4= 0–0 (6...Be6 7.Ng5=) 7.ed5 Qd5 8.Qd5 Nd5 9.Bc4 Nb6 (9...Be6 10.Bd5 Bd5 11.Nbd2–/+) 10.Be2 (10.Nbd2 Re8 11.Be2 Bf8=+) 10...Bf5 (10...Re8 11.Ba3 N8d7 12.Bc5 Nc5 13.Nbd2=+) 11.Nbd2 Nc6 (11...N8d7 12.Nb3=) 12.Nb3 Be7 13.Bb5 (13.Nbd4 Be4=) 13...Be4 14.Nbd2 Bf3 (14...Bd5!?=) 15.Nf3+= Na5 (15...Rfe8 16.0–0+=) 16.0–0 (16.Ke2 Rfd8+=) 16...c6 (16...Rfd8 17.Rb1=) 17.Bd3 (17.Be2 Rad8=) 17...Nac4 (17...Rfd8!? 18.Be2 Rd7=) 18.Rb1+= Rab8 19.Rd1 Rfd8 20.Bg5 (20.Bf4!?+=) 20...Bg5= 21.Ng5 Ne5 22.Bh7 Kf8 23.Re1 (23.Bc2 Nd5=) 23...Nd3 (23...Nec4 24.Bc2=+) 24.Re3= g6?? (better is 24...Nc5=) 25.Bg6!+– fg6 26.Ne6 Kf7 27.Nd8 Rd8 28.Rd1 (28...Rd5 29.Red3+–) 1–0. marus1 – arcus, internet, 2001.

5.Nf3 Bf5 6.Nd4 Bg6 7.Qb3 =+.

5.Nf3 Bg4 6.Qb3 (6.e4 Ne7=) 6...b6=+ 7.Bg5 (7.Nbd2 c6=+) 7...Ne7 8.h3 (8.Nbd2 0–0=+) 8...Be6 9.Nd4 (9.e4 de4 10.Qa4 Nbc6=+) 9...0–0 (9...c6 10.e3–/+) 10.e4 (10.Nd2 c6=+) 10...Bd4 11.cd4 Nbc6 12.Qe3 (12.ed5!? Qd5 13.Qd5 Nd5 14.Be3–/+) 12...de4–/+ 13.Qe4 Bf5 (13...Qd4 14.Qd4 Nd4 15.Be7–/+) 14.Be7 (14.Qh4 Qd4 15.Qd4 Nd4–/+) 14...Be4 15.Bd8 Nd4 (15...Rad8!? 16.Nc3 Rd4–/+) 16.Bc7=+ Nc2 17.Ke2 (better is 17.Kd2 Na1 18.Nc3+=) 17...Na1–/+ 18.Nc3 Rac8 19.Ne4 Rc7 20.Ke3 (20.Kf3 Rc1–+) 20...Nc2 21.Kf4 Rd8 22.Nd6 f6 23.Nf5 fe5 24.Ke5 Rd2 25.f4 g6 26.Nd6 Rc5 27.Ke6 Rc6 (28.Ke7 Ne3–+) 0–1. mtr – Bishoplifter, internet, 2001.

4.Bd2 Bd2

5.Qd2 Nc6 6.Nc3 d4 7.Na4 Qd5 8.Nf3 (better is 8.Nb2–/+) 8...Qb5–+ 9.Qg5 (9.e3 Qa4 10.ed4 Nb4–+) 9...g6 (9...Qa4?! 10.Qg7 Nb4 11.Qh8 Nc2 12.Kd2 Na1 13.Qg8 Ke7 14.Qg5 Ke8 15.Qg8 Ke7 16.Ke1=) 10.e6 (10.c3 Qa4 11.Nd4 Nd4 12.cd4 Qd4–+) 10...f5 11.Nd4 (11.e4 Qa4 12.ef5 Qc2 13.Rc1 Qa2 14.Bd3 Qa5 15.Kf1–+) 11...Nd4 12.e7 (12.Rc1 Qa4 13.Qd2–+) 12...Nc2 13.Kd1 Qa4 14.Rc1 Ne3 15.Kd2 Qd4 16.Ke1 Qb4 17.Rc3 Qc3 0–1. lucky bucky – nitousche, ChessWorld.net, 2004.

5.Qd2 Nc6–/+ 6.Nc3 d4 7.Ne4 Nge7 8.e3 Qd5 9.f3 de3 10.Qe3 Qe5 11.Bd3?? (better is 11.Qc3–+) 11...Qa1 (12.Kf2 Qa2–+) 0–1. Geordiedazza – marekt, ChessWorld.net, 2003.

5.Qd2 Nc6–/+ 6.Nc3 Ne5 7.Qd5 Qe7 8.Nf3 Nf3 9.Qf3 =+.

5.Qd2 Nc6 6.Nf3 Bg4 7.h3 Bf3 8.gf3 Ne5 9.c3 Qd6 10.Bg2 0–0–0 11.f4 Ng6 12.a4 (12.e3 Nh4 13.Rg1 Qg6–+ (13...Ng2?! 14.Rg2 Nh6 15.Rg7–/+)) 12...Nf4 13.Rg1 Nf6 14.Qd4 c5 15.Qd1 Kb8 16.Nd2 Rhe8 17.e3 d4 18.a5 (18.cd4 Qd4 19.Rb1 Re3 20.fe3 Qe3 21.Kf1 Rd2 22.Qf3–+) 18...de3 19.Nc4 (19.Nb3 Nd3 20.Kf1 ef2–+) 19...Nd3 20.Ke2 Qf4 21.Qf1 Nc1! 22.Rc1 (22.Rc1 ef2 Mate attack; 22.Qc1 Qf2 mate Mate attack) 22...ef2 (22...ef2 23.Be4 Re4 24.Ne3 Qe3) 0–1. Sirprocyon – michaelbuss, ChessWorld.net, 2016.

5.Nd2 Nc6 =+.

3.Nf3 e4–/+

4.Nfd2 e3 5.fe3 Bb4 6.c3 Bd6 7.e4?? (better is 7.g3 Nf6 8.Bg2–/+) 7...Qh4 (8.g3 Qg3 9.hg3 Bg3#) 0–1. Golemfinder – marekt (2505), ChessWorld.net, 2003. (=1.d4 d5 2.b4 e5 3.Nf3 e4)

4.Ng5 h6 5.Nh3 Bb4 6.c3 Bd6 7.e3 Nf6 8.Be2 0–0 9.0–0 (9.Nf4!?–/+) 9...Bh3–+ 10.gh3 Qd7 11.f3 Qh3 12.f4 Nc6 13.Nd2? (13.c4–+) 13...Qe3 14.Kg2 Qc3 15.Nb3 Ne7 16.Rb1 Nf5 Black prepares the advance e3 17.Bd2 Nh4 18.Kg1 (18.Kh1 Qh3 19.Rg1–+) 18...Qh3 19.Rf2 e3 20.Bf1 (20.Be3 Qe3 21.Bd3–+) 20...ef2 21.Kf2 Ng4 (21...Qh2 22.Bg2 Qg2 23.Ke3 Qg3 24.Ke2 Qf3 25.Ke1 Ng2#) 22.Ke1 Nf3 23.Ke2 Ng1 24.Ke1 Qh4# 0–1. Petraccia,D – Bianchi,Albino, Asiag tt, 1993. (=1.d4 d5 2.b4 e5 3.Nf3 e4)

2.d4 e6

3.a3 a6 4.Nf3 h6 5.Bf4 Nd7 6.e3 g5 7.Bg3 Bg7 8.c4 dc4 9.Bc4 b5 10.Bb3 Bb7 11.0–0 Ngf6 12.Nc3 0–0 13.Nd2 Nb6 14.Rc1 Rc8 15.h3 c6 (15...Nbd5 16.Nd5 Nd5 17.Nf3+=) 16.Qe2 Nfd5 17.Nce4 Ne7 (17...Ra8!? 18.Nd6 Qe7 19.N2e4+/–) 18.Nc5 Rb8? (better is 18...Ba8+–) 19.Bb8 Qb8 20.Nde4 Nbd5 (20...Ned5+–) 21.Nd7 Qd8 22.Nf8 Kf8 23.Nc5 Qc8 24.g4 (24.Bd5 Nd5 25.Qc2 Ba8+–) 24...Ba8 25.Ne4 Qc7 26.Nc5 Bb7?? (26...Qc8 27.Rfd1 e5+–) 27.Qd2 Ng6 28.e4 (28.Bc2 Bc8+–) 28...Ndf4 29.e5 (29.Kh1 Kg8+–) 29...Nh3 30.Kh2 Nhf4 31.a4 Nh4 32.Kg3 Bc8 33.a5 Nhg6 34.Bc2 Nd5 35.Bg6 fg6 36.Rce1 Qf7 37.Ne4 Qe7? 38.Nd6 Bd7 39.Rb1 Nf4 40.Qc2 h5 41.gh5 Nh5 42.Kg4 Be8 43.Rbc1 Bh8 44.Qd2 Bd7 45.Rh1 Nf4 46.Rh8 Kg7 47.Rg1 Kh8 48.Rh1 Kg7 49.Ne4 Be8 50.Ng5 Nh5 51.Rh3 Kg8 52.Ne4 Kg7 53.Nc5 Qa7 54.Ne6 Kh7 55.Ng5 Kg7 56.Rf3 Bd7 57.Kh4 Bf5 58.Rc3 Qd7 59.Qe3 Qd5 60.Nh3?? Bh3 61.Qh3?? Nf4 62.Qg4+– Qh1 63.Kg3?? Nh5–+ (63...Nh5 64.Qh5 gh5–+) 0–1. capacuba (2315) – beammeupscotty (2130), net–chess.com, 2013. (=1.d4 d5 2.b4 e6)

3.a3 b6 4.Nf3 Nf6 5.e3 Bb7 6.Bd3 Nbd7 7.0–0 Be7 8.Nbd2 a6 (8...0–0 9.Bb2=) 9.c4 c5 10.bc5 bc5 11.Rb1 Qc7 (11...Rb8 12.Bb2+=) 12.Qc2 (12.cd5!? Nd5 13.Bb2+=) 12...cd4= 13.ed4 dc4 14.Nc4 Bf3 15.gf3 0–0 16.Be3 Nd5 (16...Bd6!?=+) 17.Bh7+= Kh8 18.Kh1 (18.Be4!?+=) 18...Rac8 (18...f5!? 19.Bg6 Rf6–/+) 19.Bd3=+ Bd6 (19...N7b6!? 20.Rfc1 Nc4 21.Qc4 Ba3 22.Qc7 Rc7 23.Rc7 Nc7=) 20.Rg1 (20.Rfc1 Qa7 21.Qd2+=) 20...f5 (20...Rfd8 21.Nd6 Qd6 22.Qe2+=) 21.Rg2 Rf6 22.Qe2?? Ne3?? 23.fe3+– Rh6 24.Nd6 Qd6 25.Rbg1 Rg8 26.e4 fe4 27.Qe4 Nf6 28.Qb7 Nh5? 29.Qa6 Qf4 30.Be4+– Nf6? 31.Qd3 Rh3 32.Rg3 Qh6 33.Rh3 Qh3 34.Rg3 Qh4 35.Kg2 Nh5+/– 36.Rg4 Nf4 37.Rf4 Qf4 38.a4 g5 39.d5 g4= 40.Kh1?? Qc1 41.Kg2=+ gf3 42.Kf3 Rf8 43.Kg3?? Qf4–+ 44.Kg2 Rg8 45.Kh1 Qc1 (46.Qf1 Qf1#) 0–1. mateineight – FYRNIKI, Live Game Caissa's Web, 2004.

3.a3 c5 4.bc5+= Nc6 5.Nf3 Nf6 6.Nc3 (6.e3 Ne4+=) 6...h6 (6...Be7 7.e3+=) 7.h3 (7.e3 Be7+=) 7...Ne4 8.Ne4 (better is 8.Bd2!?+=) 8...de4=+ 9.Nh2 (9.Ne5 Qd4 (< 9...Nd4 10.e3 Nc6 11.Qd8 Nd8 12.Bb5 Nc6 13.Nc6+=) 10.Nc6 Qd1 11.Kd1 bc6=+) 9...Nd4 (9...Qd4!? 10.Qd4 Nd4–/+) 10.e3=+ Qa5?? (better is 10...Nc6 11.Qd8 Kd8=+) 11.Bd2+/– Qc5 12.ed4 Qd4 13.Be3 Qd1 14.Rd1 Bd7 15.Be2 Ba3+= 16.0–0 Rc8 17.Ba7 Bc6?? 18.Rd4 0–0 19.Ng4 Bd5 20.c4+– Bc6 21.Bb6 Ra8 22.f3 ef3 23.Bf3 Bc5?? 24.Bc5+– Bf3 25.Bf8 Rf8 26.Rf3 f5 27.Ne5 1–0. nmorgan (1880) – kmorgan (1700), net–chess.com, 2003.

3.a3 Bd7 4.Nc3 a6 5.Nf3 Nf6 6.Ne5 Bd6 7.Bg5 h6 8.Bf4 Nc6 9.g3 0–0 10.Bg2 Nh5 11.Nc6 Bc6 12.0–0?? Nf4–+ 13.gf4 Bf4 14.e3 Bd6 15.a4? Bb4–+ 16.Ne2 Bc3?? 17.Nc3+/– Bd7 18.Qb1 Qe7 19.Qb7+– Rfb8 20.Qc7 Rc8 21.Qa5 Rc4 22.Rfb1 Rac8 23.Rb3 Qd6 24.Bf1 R4c7 25.Ba6 Ra8 26.Rb6 Rc6 27.Rab1 Ra6 28.Qa6 Qc7 29.Qa8 Kh7 30.Rb7 Qd6 31.Nb5 Qe7 32.Qa7 Qg5 33.Kf1 Bc8 34.Rc7 Ra6 35.Qc5 Qd8 36.Rc8 (36.Rc8 Qh4 37.Qf8 Qh3 38.Ke2 Qh5 39.Kd2 Qh2 40.Qf7+–) 1–0. pwillows (2020) – mgomdysey (2045), net–chess.com, 2007.

3.Ba3 b6 4.b5 Bb7 (4...Ba3!? 5.Na3 Qe7+=) 5.Bf8= Kf8 6.c3 Nd7 7.e3 Ne7 8.Bd3 g6 9.Nf3 Kg7 10.Ng5 h6 11.Nh3 g5 (11...a6 12.0–0=) 12.Qf3 (12.f4 Nf5+/–) 12...Ng6 13.Nd2 Rf8 14.Ng1 (14.Qg3 a6+=) 14...f5 15.g3 (15.Qg3 e5=) 15...Nf6 16.h4 Ne4 (16...g4!? 17.Qe2 c5+=) 17.hg5+= Nc3?? (better is 17...hg5 18.Ne2 e5=) 18.gh6+– Kf6 (18...Kh7 19.Qh5+–) 19.Qh5 Rh8 (19...a6 20.g4 Ne4 21.Ngf3+–) 20.f4 (20.Ngf3 Qf8 21.g4 Rg8 22.gf5 ef5 23.Qf5 Ke7 24.Qg5 Qf6+–) 20...Ne4 21.Be4 de4 22.Qg5 (better is 22.g4!? fg4 23.Qg4 a6+–) 22...Kf7 23.Qd8 Rad8 24.Nc4 Rh7 (24...c5 25.Rd1+/–) 25.a4 (better is 25.Nh3!? Ke7 26.Ng5+–) 25...Rdh8+/– 26.a5 Rh6? (better is 26...Ke8+=) 27.Rh6+– Rh6 28.ab6 ab6 29.Nb6 (better is 29.Ra7 Bd5 30.Rc7 Ke8 31.Nb6+–) 29...cb6 30.Ra7 Rh1 (30...Ne7 31.Rb7 Kf6 32.Ne2 Rh1 33.Kd2=) 31.Kf1 Kf6 32.Rb7 Ne7 33.Rb6 Nd5 34.Rc6 Ne3 35.Kf2 Nd5 36.b6 Nb6?? 37.Rb6+– Rh2 38.Kf1 Rd2 39.Ne2 e3 40.g4! fg4 41.Rb3 Rd1 42.Kg2 e5 43.fe5 Ke6 44.Re3 Ra1 45.Kg3 Ra4 46.Kg4 Kd5 47.Kf4 Ra8 48.Re4 Rf8 49.Ke3 Rh8 50.Rf4 Rh3 51.Rf3 Rh4 52.Nf4 Kc4 53.e6 Rh8 54.d5 Re8 55.Ke4 Kc5 56.Ke5 Rh8 57.d6 Rg8 58.Nd3 Kc6 59.Rf5 Rd8 60.Nb4 Kb5 61.e7 Re8 62.Ke6 Kb4 63.d7 Ra8 64.d8Q Ra6 65.Qd6! Rd6 66.Kd6 Kc4 67.e8Q Kd4 68.Qh8 Ke4 69.Ra5 Kf4 70.Qh4 Kf3 71.Ra3 Ke2 72.Qh2 Kf1 ½–½. bogdanxxx1 – sosna1410, playok.com, 2013. (=1.d4 d5 2.b4 e6)

3.Ba3 Bd6 4.Nf3 Nf6 5.e3 0–0 6.Ne5 (6.b5 Ba3 7.Na3 c5=+) 6...Nc6 (better is 6...Qe7=+) 7.Nc3?? (better is 7.Nc6 bc6 8.c4=) 7...Ne5–+ (< 7...Be5 8.de5 Ne5 9.b5–/+) 8.de5 Be5 (9.Bb2 Qd6–+) 0–1. sbreedon – apopa, net–chess.com, 2002.

3.Na3 Bb4 4.c3 Bc3 5.Bd2 Ba1 6.Qa1 Nf6 –+.

3.Na3 Bd6 4.Rb1 (4.c3 a5 5.b5 Nf6=+) 4...Bd7 (better is 4...a5 5.ba5 Ra5–/+) 5.Be3? (5.c4!?=) 5...Nc6 (5...a5!? 6.Qd3 ab4 7.Nb5 Bb5 8.Qb5 c6 9.Qb7 Ra2 10.Bd2–/+) 6.g3? (better is 6.c3 a5 7.Nb5 ab4 8.Nd6 cd6 9.cb4 Ra2 10.Nf3–/+) 6…b5 (7.Nb5 Bb4 8.Bd2 Bd2 9.Qd2 Rb8=). dolphin – pchandler, net–chess.com, 2003.

3.Bb2 Nf6 4.a3 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 d5 4.d4).

3.b5 b6 4.a4 a5 5.f4 (5.Nf3 c5=) 5...Nh6 6.h4 (6.Nf3!?=) 6...Nf5–/+ 7.c3 Nd7 8.g4 Ng3 9.Rh3 Ne4 (9...Nf1!? 10.Kf1 Nf6–/+) 10.g5 f6 (10...Bd6 11.Bg2+=) 11.Bg2 Bd6 12.Be4 de4 13.f5? (better is 13.h5!?+=) 13...ef5–+ 14.Ba3 (better is 14.Qb3–+) 14...fg5 15.Bd6 gh4?? (better is 15...cd6 16.Qb3 g4–+) 16.Bf4 (16.Bh2=) 16...Nf6 (16...g5 17.Bc1+=) 17.c4 (17.Qc1 h6 18.Rh4 Rh7+=) 17...Ng4 18.d5 Qf6 (18...g5 19.Bc1=) 19.Na3 e3 (19...g5 20.Bc7 f4=) 20.Nc2 (better is 20.Be3 Ne3 21.Re3 Kd8 22.Nf3+/–) 20...Nf2?? (20...Qc3 21.Kf1 Qc4 22.Be3=) 21.Qd4?? (better is 21.Re3!? Ne4 22.Nf3+–) 21...Nh3? 22.Qf6+/– gf6 23.Nh3 h5? 24.Ne3 Bd7?? 25.Bc7 f4 26.Nf4 h3 27.0–0–0 h2 28.Bb6 h4 29.Bd4 Ke7 30.c5 Be8 31.d6 Kf7 32.c6 Bc6 33.bc6 Rhd8 34.d7 Rac8 35.dc8Q Rc8 36.Nc2 Rc6 37.Rh1 Rc4 38.Rh2 Ra4 39.Rh4 (39.Rh4 Kg8 40.Nd5+–) 1–0. Thrustnicely – Regicide, laychess.de, 2003. (=1.d4 d5 2.b4 e6)

3.b5 c5 4.Nc3 Nf6 5.Nf3 Qa5 6.Bd2 Qb6 7.e3 Ne4 8.Na4 Qc7 9.Bd3 Nd2 10.Qd2 c4 11.Be2 Nd7 12.0–0 Bd6 13.Nc3 a6 (13...Nf6 14.a4+=) 14.a3 (14.Rab1 0–0=) 14...Nf6 15.a4 (better is 15.Rfb1!?=) 15...Bb4–/+ 16.a5 Ne4?? (16...Qd8 17.Ng5 h6 (17...Ba5?! 18.ba6 h6 19.Ra5 Qa5 20.ab7 Bb7 21.Nf3–+) 18.Nf7 Kf7–+) 17.Nd5!+/– ed5 (17...Nd2?? 18.Nc7 Kd8 19.Na8 Nf1 20.Kf1 ab5 21.Rb1 Ba5 22.Rb5+–) 18.Qb4 b6 (18...Qe7 19.Qb2+/–) 19.Rfd1 (19.Rfb1!? ba5 20.Ra5 Qe7+–) 19...Nd6+/– 20.ab6 (20.ba6 Ra6 21.ab6 Qb6+/–) 20...Qb6 21.Qc5 Rb8?? (better is 21...Qc5 22.dc5 Nb5 23.Rd5 Be6+/–) 22.ba6+– Ba6 23.Qd5 0–0 24.Qc5 (24.Ne5 Rfd8+–) 24...Ne4 25.Qb6 Rb6 26.Rdb1 (26.Ra3!? Nd6+–) 26...Rb1 27.Rb1 Nc3 28.Re1 Rb8 (28...Ne2 29.Re2 Rb8 30.d5+–) 29.Bf1 Rb2 30.Ra1 Na2 31.d5 Rc2? (31...Kf8+–) 32.Rb1 f6 33.d6 Kf7 34.d7 Ke7 35.Rb6 (35.Rd1!? Kd8 36.Nd4 Kd7 37.Nc2 Kc6+–) 35...Rc1 (35...Kd7 36.Ra6 c3 37.Nd4+–) 36.Ra6 (better is 36.Rd6! Kd6 37.d8Q Kc6+–) 36...Nc3 37.Nd4 Nb1 (37...Kd7 38.Ra7 Kd6 39.Rg7 Ne4+–) 38.Rd6! (38.Rd6 Kd6 39.d8Q Kc5 40.Qa5 Kd6 41.Ne2 Rf1 42.Kf1+–) 1–0. Vettenburg,Louis – Kneip,Albert, corr ICCF, 1984.

3.b5 c6 4.e3 c5 5.c4 Nf6 6.Nc3 Nbd7 7.f4 (7.dc5 Nc5 8.Bb2 Nce4=) 7...Ne4 (7...Nb6 8.cd5 ed5 9.Ba3 cd4 10.Bf8 dc3 11.Bg7+=) 8.Ne4= de4 9.Ne2 b6 10.g3 f5 11.Bg2 h6 12.Bb2 a6 13.a4 Qc7 14.d5 Nf6 (14...Qd6 15.g4 Nf6 16.Bf6 gf6 17.gf5 ef5 18.Ng3+/–) 15.Bf6+= gf6 16.de6 (16.Nc3!?+=) 16...Be6= 17.0–0 (better is 17.Qb3!?=) 17...Bc4–/+ 18.Re1 Be7 19.ba6 Ba6 (better is 19...Rd8!? 20.Qc2 Ba6–/+) 20.Nc3= Rd8? (better is 20...Bc8!?=) 21.Qh5+/– Kf8 22.Qf5 Bc4 23.Be4 h5 24.Bd5 Bd5 25.Nd5 Qd7 (better is 25...Qc6 26.e4 c4+–) 26.Qd7 Rd7 (26...Rd7 27.Nb6 Ra7+–). delightful_porridge – A_Pony_Named_Wibbles, ChessWorld.net, 2013.

3.b5 Qd7 4.e3= a6 5.a4 a5 (5...ab5 6.Bb5 c6 7.Bd3=) 6.c4 b6 7.Nf3 Bb7 8.Ne5 Qe7 (8...Qd8 9.Ba3+=) 9.cd5 ed5 10.g3 (10.Ba3 Qe6+/–) 10...c5 11.bc6 Bc6 (11...Bc6 12.Ba3 Combination; 11...Nc6 12.Ba3 Combination) 12.Nc6 (12.Ba3!? Qe6 13.Bf8 Kf8 14.Qb3+/–) 12...Nc6+= 13.Bb5 Rc8 14.Qc2 h5?? (14...Kd8 15.Ba3 Nb4 16.Qf5=) 15.h4?? (better is 15.Bc6 Kd8 16.Ba3+–) 15...Qe6 16.0–0 Nf6 (16...g5 17.Ba3 Ba3 18.Na3 gh4 19.Ba6–/+) 17.f3 (17.Bd2!?+=) 17...g6 18.e4 1–0. Bob_O – Gotiniya_, playchess.de, 2003. (=1.d4 d5 2.b4 e6)

3.Nc3 Bb4–/+ 4.Rb1?? (better is 4.Bd2–/+) 4...Bc3–+ 5.Bd2 Bd2 (5...Bd4!? 6.Nf3 Bf6 7.e3–+) 6.Qd2 Nc6 (6...Nf6 7.e3–+) 7.Nf3 Nf6 8.e3 0–0 9.Bd3 Re8 10.0–0 (10.Bb5 Ne4 11.Qd3 Bd7–+) 10...Bd7 (better is 10...Ne4 11.Qe1–+) 11.Rb7 Rb8 12.Rb8 Qb8 13.c3 Na5 14.Qc2 Bb5 15.Ne5 Bd3 16.Nd3 Nc4 17.Nc5 a5 18.Qa4 h6 19.a3 Qb6 20.h3 Rb8 21.g4 Qb5 22.Qc2 Na3 23.Qd2 Nc4 24.Qd3 a4 25.Rb1 Qb1 26.Kg2 –+. prata83 – O TOOLIO, internet, 2006.

3.Nc3 Nf6 4.a3+= Bd6 5.Nf3 Nc6 6.e3 Bd7 7.Bb2 Qe7 8.Bb5 (8.Nb5 a5=) 8...a6 9.Bc6 Bc6 10.0–0 0–0 11.h3 Rfe8 12.Ne2 (12.Ne5 Bd7+=) 12...b5 (12...Bb5 13.Qe1–/+) 13.c3 (13.Ne5 Bb7+=) 13...a5 14.ba5 (14.Qd3 Nd7–/+) 14...Ra5–/+ 15.Qc2 Ne4 16.Ne5 Be5 17.f4?? (better is 17.de5 Qg5 18.Nd4–/+) 17...Bf6 18.Rf3 Bb7 19.a4 ba4 20.Ba3 Qd7 21.Kh2 c6 22.c4 Bh4 23.cd5 Qd5 24.Rb1 Ra7 25.Rd1 Ba6 26.Ng1 Bg3! 27.Rg3 Ng3 28.Kg3 Bc4 29.e4 Qb5 30.Nf3 h6 31.e5?? Rb7 32.h4 Be2 33.Rd2 Bf1 34.f5 ef5 35.h5 Kh8 36.Qf5 Qd5 37.Rf2 Bc4 38.Bc1 Rb3 39.Bb2 a3 40.Ba1 Bd3 41.Qg4 Be4 42.Qf4 Rf8 43.Kh2 Re8 44.Re2?? Bf3–+ 45.gf3 Rf3 46.Qg4 Rf1 47.Rg2 Rg8 48.Qe2 Ra1 49.Qd3 a2 50.Qc3 Rb1 51.Ra2 Qa2 52.Kg3 Rb3 0–1. calchess10 – pieeater, ChessWorld.net, 2013.

3.Bd2 Nc6 4.e3 (4.c3 Bd6+=) 4...Nb4–/+ 5.Nf3 c5 6.Bb5 (6.Bb4 cb4 7.c4 bc3 8.Bb5 Bd7 9.Bd7 Qd7 10.Nc3 Bd6–/+) 6...Bd7 7.Nc3 Nf6 8.Rb1 Bb5 9.Nb5 Nc6 10.0–0 a6 11.Nc3 Rb8 12.Ne2 cd4 (12...Ne4 13.Bc3–/+) 13.ed4 Bd6 14.Bg5 b5 15.Ng3 h6 16.Bf6 Qf6 17.Qd3 Qg6 18.Qg6 fg6 19.Rfe1 Kd7 20.c3 b4 21.cb4 Rb4 22.Rb4 Nb4 23.Rb1 Rc8 24.Ne2 (24.a4 Rc4–+) 24...Na2 25.Kf1 Rb8 26.Ra1 Rb2 27.Nc1 Nc1 28.Rc1 Ra2 29.Rb1 a5 30.Ne5 Be5 31.de5 a4 32.Rb7 Kc6 33.Rg7 a3 34.Ra7 d4 35.Ra6 (35.Ke1–+) 35...Kb5 36.Ra8 d3 37.Ke1 Re2 38.Kd1 (38.Kf1 a2 39.h4 Rb2–+) 38...a2 39.h4 Rf2 40.h5 (40.g3 Kc4 41.Ra4 Kc3 42.Ra3 Kd4–+) 40...gh5 41.g3 Kc4 0–1. Sendobry,Bert – Klapp,Herwig, corr, 2004.

3.Qd3 Bb4 4.c3 Bd6 5.Nd2 –/+.

3.Qd3 f5 4.f4 (4.a3 Bd6=) 4...a6 (better is 4...Bb4!? 5.Nd2 Nf6–/+) 5.a3= b5 6.Nf3 Nc6 7.Ne5 Ne5 8.de5 Bb7 9.Be3 Nh6 10.h3 (10.Nd2 c5 11.Bc5 Bc5 12.bc5 Rc8=) 10...g6 (10...Qh4 11.Kd1–/+) 11.Nd2 Bg7 (11...Qh4!? 12.Kd1 Ng4+=) 12.Nb3 (12.Bd4 0–0+=) 12...Qe7 (12...Qh4!? 13.Kd1 Ng4=) 13.Bc5+= Qh4 14.g3 Qd8 15.Nd4 Qd7 16.Bg2 Bf8 17.Bf8 Rf8 18.0–0 0–0–0 (18...g5 19.e3+=) 19.Nb3+/– Qc6 20.Nc5 Rg8 (20...g5 21.a4 ba4 22.c4+/–) 21.a4+– g5? (better is 21...ba4 22.Ra4 g5+–) 22.ab5 Qb5 23.Ne6 (better is 23.Qb5!? ab5 24.Ra7 Bc6+–) 23...Qb6 24.Nd4 (better is 24.Nc5!?+–) 24...gf4+/– 25.Rf4 Rgf8 (25...Rde8!?+/–) 26.Kh2 Rde8 27.Nf5 Re5?? (27...Nf5 28.Rf5 Qb4 29.Rf6+– (worse is 29.Bd5 Bd5 30.Rf8 Qf8 31.Qd5 Qf2 32.Qg2 Qg2 33.Kg2 Re5+/–)) 28.Nh6 (28.Ne7! Kd7 29.Nd5 Bd5 30.Rf8 Ng4 31.hg4 Qh6 32.Kg1 Qf8 33.Bd5 Qb4 34.Be6 Ke6 35.Ra6 Qd6 36.Rd6 cd6+–) 28...Rf4?? (better is 28...Qh6 29.Rf8 Qf8+–) 29.gf4 Re8 30.Nf7 (30.Ng4 Qb4 31.e3 Qb2+–) 30...Qb4?? (better is 30...Qf6 31.Rf1 Qf7+/–) 31.Rf1 (31.e3 Qb5 32.Qh7 Qd7+–) 31...Qe7 (31...Qb5 32.Ne5 Qd3 33.cd3+– (33.Nd3?! Re2 34.Kg1 Kd8+–)) 32.Qf5 (32.Ne5!? Qe6+–) 32...Qe6 33.Qh7 Re7 34.f5 (better is 34.Rb1+–) 34...Qf7+/– 35.Qf7 Rf7 36.f6 c6 (36...Kd7 37.c4! c6 38.Rb1+/–) 37.h4 Kd8 (37...Kd7!? 38.Bh3 Kd6 39.h5+–) 38.e4 de4 39.Be4 Ke8?? (better is 39...Kd7 40.Bg6 Rf8+–) 40.Bg6 Kf8 41.Bf7 (41.h5 a5 42.Bf7 Kf7+–) 41...Kf7 42.Kg3 (42.h5!? c5 43.Rf4 Bd5+–) 42...c5 43.Kg4 Bg2 (43...Be4 44.Kg5+–) 44.Rf4 Bc6 45.Rc4 (better is 45.Kg5 a5 46.h5 Bd5+–) 45...Bd7 (45...Kf6 46.Rc5 Bb5+–) 46.Kg5 a5 47.Rc5 a4 48.Rc7 Ke8 49.Kg6 a3 50.Ra7 1–0. Schaefer,Sascha (1965) – Korn,Lothar (1700), remoteschach.de, 2008.

3.Nf3 a5 4.c3 (better is 4.b5!?=) 4...ab4–/+ 5.cb4 (5.e3 Nf6–/+) 5...Bb4 6.Bd2 Bd6 7.e3 Nf6 8.Nc3 Nbd7 (8...0–0 9.Nb5–/+) 9.Bb5 (9.Qc2 c6–/+) 9...0–0 (9...c6 10.Bd3–/+) 10.Bd7 (10.0–0 Ne4–/+) 10...Bd7–+ 11.Rb1 b6 12.h3 c5 13.dc5 bc5 14.Qc2 d4 15.ed4–/+ cd4 16.Nd4=+ Rc8 17.0–0 e5 18.Nf3 Bc6 19.Rbd1 Bf3–+ 20.gf3 Qd7 21.Bg5 Qe6 22.Bf6 Qf6–+ 23.Qe4?? Rc3 24.Rd3 Rd3 25.Qd3 Rd8 26.Rd1 e4 27.fe4 Bh2! 28.Kh2 Rd3 29.Rd3 Qf2 30.Kh1 Qf1 31.Kh2 Qd3 (32.e5 Qe2 33.Kg3 Qe5 34.Kg2 Qe2 35.Kg3 g5–+) 0–1. color1972 – DanielP4R, ChessWorld.net, 2004.

3.Nf3 Nc6 4.a3 Nf6 5.Bg5 h6 6.Bf6 e5?? (better is 6...Qf6 7.e3 Be7=) 7.Bd8+– (7...Nd8 8.Ne5+–) 1–0. easydigital – AmericanRusky, ChessWorld.net, 2005.

3.g3 Bb4 4.Bd2 Bd6 5.Nf3 Nf6 6.Bg2 0–0 7.0–0 c5 8.c3 (8.Bg5 cd4 9.Qd4 Nc6–/+) 8...Nc6–+ 9.dc5 Bc5 10.e3 (10.c4 dc4 11.Qa4 Qd5–/+) 10...Re8 (10...e5 11.Qb3–+) 11.Qc2 (11.c4 e5 12.cd5 Qd5–+) 11...e5 12.c4 Nb4 (12...d4!? 13.Qb2–+) 13.Bb4–/+ Bb4 14.a3 Ba5 15.Nbd2 (15.cd5 e4 16.Nd4 Qd5–/+) 15...e4 16.Ne5?? (better is 16.Nd4–/+) 16...Re5–+ 17.Nb3 Re8 18.Nc5 b6 19.Nb3 Ba6 20.Na5 ba5 21.Rfd1 Rc8 22.Qa4 Rc4 23.Qa5 Qa5 24.Rab1 h6 0–1. judgementday – atran (1830), net–chess.com, 2002.

3.g4 Bb4 4.c3 Ba5 (4...Be7 5.Bg2–+) 5.g5 (5.Nf3 Nf6–/+) 5...Nc6 6.Nf3 Nge7 7.Na3?? (better is 7.Qd3–/+) 7...Bc3–+ 8.Bd2 Ba1 9.Ba5 Na5 10.Nb5 Bd7 11.Nc7 Qc7 12.Ne5 Bc3 13.Qd2 Bd2 14.Kd2 Nc4 15.Kc2 Ne5 16.Kd1 Ng4 17.Bh3 Nf2 18.Kd2 Nh1 19.Bg4 Ba4 20.h4 Qc2 21.Ke3 Nc6 22.Bf3 f6 23.Bh1–+ Qc1 24.Kd3 Nb4# (24...Bb5#) 0–1. rferrin – nhathuy (2120), net–chess.com, 2004.

3.a3 a5

4.b5 Bd6 =+.

4.c3 ab4–/+ 5.cb4 Bb4! 6.Bd2 Bd2 7.Qd2 Nf6 8.Nf3 0–0 9.e3 Nbd7 10.Bd3 h6 11.Nc3 c5 12.0–0 c4 13.Bc2 Nb6 14.Ne5 Qd6 15.Nb5 Qb8 16.a4 Nfd7 17.f4 Ne5=+ 18.fe5 Bd7 19.Nd6 Nc8 20.Nc8=+ Qc8 21.Qf2 b5 22.ab5 Ra1 23.Ra1 Bb5 24.h4 f5 25.Qg3 Qd7 26.Qf3 Bc6 27.g3 Ra8 28.Ra8 Ba8 29.Qd1 Bc6 30.Kf2 Bb5 31.Qa1 Kf7 32.Qd1 g6 33.Kf3 Qa7 34.g4 c3 35.Kf4 Qa6 36.Qe1? Qa3 37.Qb1 Qb2 38.Qd1?? Bf1 39.g5 h5 40.Kg3–/+ Ke7 41.Kf2 Bc4 42.Qb1? Bb3 43.Qb2 cb2 44.Bb1 Kd7?? 45.Ke2 Kc6 46.Kd3 Kb5 47.Kd2?? Kb4 48.Kd3 Ka3 49.Kc3 Ba2 50.Kc2 Bb3 51.Kc3–+ Bd1 52.Kd2 Bf3 53.Bf5 gf5 54.g6 b1Q 55.g7 Qb2 (55...Qb2 56.Kd3 Be4#) 0–1. alaamattar (2205) – pushtiu (2285), net–chess.com, 2009.

4.c3 ab4 5.Nf3 –/+.

4.c3 Nf6 5.Bb2 (5.b5 Bd6=+) 5...ab4 (5...Bd6 6.e3–/+) 6.cb4=+ Ne4 (6...Bd6 7.e3=+) 7.Nf3 Nc6 (7...Bd6 8.Nbd2=+) 8.Nbd2 Bd6 9.e3 0–0 (9...Nd2 10.Qd2 0–0 11.Bd3=) 10.Ne4=+ de4 11.Nd2 (11.Ne5 Ne7=) 11...f5 12.Bc4 (12.Nc4 f4=) 12...Ne7 (12...Qg5 13.0–0=) 13.0–0 (13.Qb3 Qd7=) 13...Ng6 (13...Nd5 14.Qh5=) 14.b5 (14.f3 Qh4 15.g3 Bg3=+) 14...c5 (14...Qh4 15.f4=) 15.Nb3 (15.bc6 bc6 16.Qh5 Ra4+=) 15...cd4= 16.Qd4 Be5 17.Qd8 Rd8 18.Rfd1?? Bd7?? 19.Be5 Ne5= 20.Be2 Nd3 21.Bd3 ed3 22.a4 e5 23.Rd3+/– Be6 24.Nc5 Rd3+= 25.Nd3 e4 26.Nc5+/– Bd5 27.Nd7 Bb3? 28.a5+– Be6 29.Nc5 Bc4 30.Nb7 Bb5 31.Nd6 Bd3 32.Nf5 (32...Ra6 33.Nd4+–) 1–0. rasputin – juancabeta, Internet, 2005.

3.a3 Nf6

(--> 1.b4 Nf6 2.d4 e6 3.a3 d5).

4.Bb2 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 d5 4.d4).

4.Nf3 (--> 1.b4 e6 2.a3 Nf6 3.Nf3 d5 4.d4).

4.Nf3 Bd6 5.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.d4).

3.Ba3 Nf6

4.c3 a5 5.b5 Ba3 6.Na3 0–0 (6...Ne4 7.Qd3=+) 7.Qd3 (7.Nf3 Qe7 8.Qa4 Ne4=+) 7...c6 (7...Nbd7 8.Nf3=+) 8.c4 dc4 9.Qc4 cb5 (9...Qe7 10.Qc3=+) 10.Nb5= Nc6 11.Nf3 Nb4 (11...Bd7 12.a3=) 12.e3 (12.a3 Nbd5=) 12...Bd7=+ 13.Qb3 Rc8 14.Nd6?? (better is 14.Na3=+) 14...Nc2–+ 15.Kd2 Na1 16.Qb7 (16.Qb1 Rc2 17.Ke1 Qc7–+) 16...Rc2 17.Kd3 (17.Ke1 Bc6 18.Qb1 Qd6 19.Bd3–+) 17...Bc6 18.Qb1 Qd6 19.Qa1 Be4# 0–1. gimmy – fled, net–chess.com, 2001.

4.e3 Be7 5.Be2 Nc6 6.Qd2 (6.b5 Ba3 7.Na3 Ne7=) 6...Bd7 (6...Ne4 7.Qc1 Nb4–/+) 7.Bb5? (7.b5!? Ne4 8.Qd3=) 7...a6 (7...Ne4!? 8.Qe2 Nb4–/+) 8.Bd3–/+ Bd6 9.Nf3 (9.b5 ab5 10.Bd6 cd6–/+) 9...Qe7 (9...Ne4 10.Qe2–/+) 10.Nc3 (10.c3 0–0+=) 10...Ng4 (10...Nb4 11.0–0–/+) 11.h3 Nf6 12.Na4 (12.0–0 Nb4 13.Rfb1 0–0–/+) 12...0–0 (better is 12...Ne4!? 13.Be4 de4–+) 13.Nc5+= b6 14.Nd7 Qd7 15.0–0 Rfe8 16.Qe2 (16.Qc3 Ne4 17.Qb3 b5=) 16...b5 17.Rfe1 (17.c3 e5 18.de5 Ne5 19.Ne5 Be5=) 17...e5 (better is 17...Nb4!? 18.Ne5 Qc8–/+) 18.de5+= Be5 19.Rab1 (19.Ne5 Ne5 20.Bb2 a5=) 19...d4 20.e4 Qd6 21.Ne5 Qe5 22.Qd2 Rad8 23.f4 Qh5 24.e5 (24.Bb2!?=) 24...Nd5+= 25.Bb2 (25.Bc1 Qh4 26.Be4 Nc3–/+) 25...Ne3 (25...Ndb4!? 26.Be4 Qh6+=) 26.Re2 (26.c3 Nd5 27.cd4 Ncb4=) 26...Re6 27.a3 Ne7 (27...Nc4 28.Qd1+=) 28.Re3 (28.Bd4!? Rd4 29.Qe3+/–) 28...de3+= 29.Qe3 (29.Bh7!? Kh7 30.Qd8+=) 29...Nd5 30.Qe4 g6 31.Be2 Qh6 (better is 31...f5 32.Qd5 Rd5 33.Bh5 gh5+=) 32.Bc1?? (better is 32.Rd1!? Qh4 33.Bb5 ab5 34.Rd5 Rd5 35.Qd5 Qe1 36.Kh2=) 32...Qh4 (better is 32...Nc3 33.f5 Qg7–+) 33.Rb3?? (better is 33.Bd2 f5 34.Qf3–/+) 33...Qe1–+ 34.Bf1 (34.Kh2 Qc1 35.Rf3–+) 34...Qe4 35.Bd3 Qe1 36.Kh2 0–1. groovenetwork – pieeater, ChessWorld.net, 2012.

3.b5 Bb4

4.c3 Bd6 5.g3 (5.Ba3 Nf6=) 5...c6 6.e3 g6 7.a4 Bd7 8.Qe2 a6 9.ba6 ba6 (9...Na6 10.Nf3+=) 10.a5 (10.Ba3 c5=) 10...c5+= 11.Ba3 (11.e4 de4 12.dc5 Bc5–/+) 11...Bb5 12.Qb2 Nf6?? (better is 12...Bf1 13.Kf1 Nd7+=) 13.Bb5+/– ab5 14.Qb5 (14.dc5 Bc7 15.Qb5 Qd7 16.Qd7 Nfd7+=) 14...Nfd7 15.dc5 (better is 15.Bc5 Bc5 16.dc5+=) 15...Bc5?? (better is 15...Ra5 16.Qe2 Bc5–/+) 16.Bc5+– Nc6 (16...Qc7 17.Bb4+–) 17.Qc6 Ra5 (17...Rc8 18.Bb6 Rc6 19.Bd8 Kd8 20.Ne2+–) 18.Bb6! Ra1 (18...Qb6 19.Qb6 Combination) 19.Bd8 Rb1 20.Kd2 Kd8 21.Qa8 Nb8 (21...Rb8 22.Qa3+–) 22.Qa5 Ke7 23.Qc7 (23.Qc5 Kd7 24.Nf3 Rb2 25.Kc1 Rb7 26.Ne5 Kd8+–) 23...Kf6 (23...Nd7 24.Nf3 Rb2 25.Kd3+–) 24.Qf4 (24.Kc2 Rf1 25.f4 Re8+–) 24...Kg7 25.Qf3 Nd7 26.Ne2 Rb2 27.Kc1?? Rhb8 28.Kd1 Ne5 29.Qf4 Nd3?? 30.Qd4+– e5 31.Qd3 e4 32.Qd5 Rb1 33.Nc1 Rc8 34.Qg5 Rc3 35.Qe5 (35.Qe5 f6 36.Qc3+–) 1–0. Thrustnicely – Regicide, playchess.de, 2004. (=1.d4 d5 2.b4 e6)

4.Bd2 Bd6 5.a4 Qf6 6.e3 h5 (6...e5 7.de5 Be5 8.Ra3+=) 7.Nh3 (7.c4 e5 8.cd5 ed4 9.ed4 Qd4=) 7...Nh6 (7...e5 8.Bc3–/+) 8.f4 Bd7 (8...Ng4 9.c4=) 9.Qh5 g6 10.Qf3 c6 11.bc6 (11.c4 Nf5+=) 11...Bc6 12.Bb5 Nf5 13.Nf2 a6 14.Bc6 (14.Bd3 Nd7+=) 14...bc6 15.h4 (better is 15.c4!?+=) 15...Nh4+= 16.Qh3 (better is 16.Qg4+=) 16...Nf5?? (better is 16...g5–/+) 17.Qh8+– Qh8 18.Rh8 Kd7 19.Nc3 a5 (19...c5 20.dc5 Bc5 21.Rb1+–) 20.Ng4 Be7 (20...Ra7 21.Ne5 Be5 22.de5+–) 21.Ne5 Kd6 22.Rb1 Kc7 23.Rhb8! Rb8 24.Rb8 Kb8 25.Nc6 Kc8 26.Na5 Bh4 27.Kd1 Bf2 28.Nc6 Kc7 29.Nb4 Kd6 30.Nb5 Kd7 31.a5 Ne3 32.Be3 Be3 33.a6 Bf4 34.a7 1–0. Thrustnicely – Regicide, playchess.de, 2003. (=1.d4 d5 2.b4 e6)

3.b5 Nf6

4.e3 Bb4 5.c3 (5.Bd2 Bd6+=) 5...Ba5 6.Nf3 0–0 7.Ne5 (7.Bd3 Ne4=) 7...Nbd7 8.Nd3? (better is 8.Ba3 Re8 9.Qa4=) 8...Ne4–+ 9.Nb2 (better is 9.Bb2 a6 10.a4–+) 9...Nc3?? (9...Qh4 10.Qf3–+) 10.Nc3?? (better is 10.Qd2 Nf6 11.f3=) 10...Bc3–+ 11.Ke2 Bb2?? (better is 11...e5 12.Kd3 ed4 13.ed4 Bd4 14.Kd4 Qf6 15.Ke3 Nc5–+) 12.Bb2–/+ a6 13.Qa4? (better is 13.a4!?–/+) 13...Nb6–+ 14.Qb4 Nc4 15.Bc1 (15.Ke1 ab5 16.Qb5 Bd7–+) 15...a5 (15...ab5!? 16.Qb5 e5 17.de5 Ne5 18.Ke1–+) 16.Qa4 (16.Qc3 Bd7 17.a4 c6 18.bc6 Bc6–+) 16...Nb6 (16...e5 17.de5 Bf5 18.f3–+) 17.Qa3 (17.Qc2 e5! 18.de5 f6–+) 17...Bd7 (17...e5 18.Qc3 e4 19.Ke1–+) 18.Rb1 (18.Ke1–+) 18...Nc4 19.Qc3 Qf6 (19...e5 20.Ke1 Bf5 21.Ra1–+) 20.a4 (20.f3 Qf5 21.Qd3 e5 22.Qf5 Bf5–/+) 20...c6 (20...e5 21.de5 Qf5 22.Ra1 Ne5 23.h3–+) 21.f4? (21.bc6 Bc6 22.Ke1 Ba4 23.Bc4 Rfc8 24.Rb7 Qg6–+ (24...dc4?! 25.f3–+)) 21...Qf5 (21...cb5 22.ab5 Qg6 23.Qd3 Qd3 24.Kd3–+) 22.Rb3?! (22.Qd3 Qd3 23.Kd3 cb5 24.ab5 Rfc8–+) 22...Qg4 (22...cb5 23.Ke1 b4 24.Qa1–+) 23.Ke1? (23.Kf2 cb5 24.Be2 Qh4 25.g3–+) 23...cb5 24.ab5 a4 25.Rb4 a3 (better is 25...Rfc8!? 26.Ba3–+) 26.b6 (26.Bc4 Qg2 27.Rf1 dc4 28.Ba3 Qh2 29.Rb2 Qg3 30.Ke2–+) 26...a2 (26...a2 27.Qa1 Rfc8–+) 0–1. Franziska,Franzi (2110) – Pieleck,Rudi (1770), remoteschach.de, 2002. (=1.d4 d5 2.b4 e6 3.b5 Nf6)

4.e3 Bd6 5.c4 dc4 6.Bc4 Bd7 7.Nf3 Qe7 8.0–0 Ne4 (8...a6 9.ba6 Na6 10.Nc3=) 9.Bb2 0–0 10.a4 c6 11.bc6 (11.Qd3!? Nf6 12.e4+=) 11...Bc6= (worse is 11...bc6 12.Qc2 Ng5 13.Ne5+/–) 12.Nc3? (12.Ba3 Rc8=) 12...Re8?? (better is 12...Nc3 13.Bc3 Bf3 14.Qf3 Rc8–+) 13.Ne4 Be4 14.Bd3 Bf3 (14...Bd3!? 15.Qd3 Nc6=) 15.Qf3+= (worse is 15.gf3 Qg5 16.Kh1 Nc6=) 15...Nc6 16.Bb5 a6 17.Bc6 bc6 18.Qc6 Rec8 19.Qe4 Rab8 20.Rab1 Qf6 (20...Qd7 21.d5=) 21.f4 h6 22.Rf2 Kh8 23.Qd3+/– g6? 24.d5+– e5 25.fe5 Qd8 26.ed6 Kg8 27.Qd4 Rb2+– 28.Qb2 Kh7 29.Rf7 Kg8 30.Qg7# 1–0. delightful_porridge – pieeater, ChessWorld.net, 2013.

4.e3 Bd6 5.c4 c5 6.Nf3 0–0 (6...cd4 7.Qd4 Nbd7 8.cd5=) 7.cd5 ed5 (7...Nd5 8.e4 Nb6 9.Be2=) 8.dc5 Bc5 9.Bb2 Re8 (9...Ne4 10.Nbd2=) 10.Be2 Bf5 (10...a6 11.0–0=) 11.Nc3 (11.0–0 Ne4+=) 11...Qd6 (11...Qa5 12.0–0 Qb4 13.Na4+=) 12.0–0 Nbd7 13.Rc1 Nb6 14.Qb3 (14.Nd4 Be6+=) 14...Rad8 (14...Ng4 15.Rcd1 Qh6 16.h3 Nf2 17.Rf2 Qe3 18.Rdf1+=) 15.a4 (15.Na4 Na4 16.Qa4=) 15...h6 (better is 15...Ng4=) 16.Nd5?? (better is 16.a5 Be6 17.Rfd1+=) 16...Nbd5–+ 17.Be5 Qe7 (17...Re5?! 18.Ne5 Qe5 19.Rc5–/+) 18.Bc4 Be4 19.Bf6 Nf6 (19...Qf6 20.Nd2 Nb6 21.Ne4 Re4 22.Bf7 Qf7 23.Qf7 Kf7 24.Rc5 Na4 25.Rc7 Re7 26.Rc4–+) 20.Bf7 Qf7 21.Qf7 Kf7 22.Rc5 Bf3 23.gf3 b6 24.Rc6 Rc8 (24...Rd2 25.Rfc1–+) 25.Rfc1–/+ Rc6 (25...Ra8 26.Rc7 Re7 27.f4–/+) 26.bc6–+ Rc8 27.e4 (27.Rc4 Ng8–+) 27...Nd7! 28.a5 (28.cd7 A pinning theme 28...Rc1) 28...Nc5 29.ab6 ab6 30.Rb1 (30.h4 Rc6 31.Kf1 Kg6–+) 30...Rc6 (30...Rc6 31.h4 Nd3–+) 0–1. Lopez – Schuehler,Ernst, corr 3GMM–45, 1996.

4.e3 Bd6 5.f4 Bd7 6.c4 0–0 7.Nf3 a6 8.Na3? (8.c5 Be7 9.Qa4 Be8=) 8...ab5 (8...Bb4 9.Kf2 ab5 10.Nb5 Bb5 11.cb5 Bc3–/+) 9.c5 Be7 10.Bb5 (10.Nb5 Nc6+=) 10...Bb5 (10...b6!?–/+) 11.Nb5 c6 12.Nc3 Na6 (12...b6 13.cb6 Qb6 14.0–0+=) 13.Ba3 (13.Rb1 Rb8=) 13...Re8 14.0–0 b6 15.Ne5 bc5 16.Nc6 Qd7 17.Ne5 Qc7 18.Nb5 Qc8 19.Rc1 Ne4 20.Nc3 Nc3 21.Rc3 c4 22.Be7 Re7 23.f5 ef5 24.Qf3 f6?? 25.Nc4?? Rb8?? 26.Qd5+– Kh8 27.Qf5 Qe8 28.d5 Nc5 29.d6 Re6 30.Qc5 Rd8 31.Rd1 h6 32.Rcd3 Kh7 33.d7 Qe7 34.Qe7 Rd7 35.Qd7 Re4 36.Qf5 Kh8 37.Rd8 Re8 38.Re8 1–0. delightful_porridge – pieeater, ChessWorld.net, 2013.

4.e3 Ne4 5.c4 =+.

4.e3 Be7 5.c4 Bd7 6.c5 c6 7.a4 0–0 8.Nf3 cb5 (8...Ne4 9.Qc2=) 9.Bb5 (9.ab5 Qe8 10.Qd3 a6+=) 9...Bb5 (9...b6!?+=) 10.ab5= Re8 11.b6 a6 12.0–0 Nc6 13.Nc3 a5 (13...Ne4 14.Qb3=) 14.Bb2 (14.Nb5 Rf8+/–) 14...Ne4 15.Nb5 Ra6? (better is 15...Rf8+=) 16.Nc7+– Rf8? (better is 16...Ra8+–) 17.Na6 ba6 18.Qa4 Re8 (18...Qd7+–) 19.Qc6 Rf8 (19...Qb8+–) 20.Qe6 (better is 20.Ra5 Bh4 21.Ra6 Bf2 22.Rf2 Nf2 23.b7+–) 20...fe6+= 21.Ng5?? Bg5–+ 22.Ra5 Qa8 23.Ra6 Qa6 24.Bc3 Qc4 25.Bb2 Nd2 26.Kh1 Qf1# 0–1. diggerdogwoofwoof – pieeater, ChessWorld.net, 2012.

3.c3

3.c3 (--> 1.b4 e6 2.c3 d5 3.d4).

3.c3 Nf6 (--> 1.b4 Nf6 2.d4 e6 3.c3 d5).

3.Bd2 Nf6

4.c3 Bd6 5.Nf3 =+.

4.c3 Be7 5.a3 0–0 6.Be3 Nbd7 7.g3 Nb6 8.Qc2 Nc4 9.Nd2 Ne3–+ 10.fe3 Ng4 11.e4–/+ Ne3 12.Qc1 Bg5 13.Bh3 de4–+ 14.Ne4 Ng2!! 15.Bg2 Bc1 16.Rc1 Qe7 17.Nf3 b6 18.h3 Bb7 19.Ned2 Rad8 20.0–0 Qd6 21.Ne5 Bg2 22.Kg2 Qd5 23.Rf3 c5 24.e4 Qd6 25.bc5 bc5 26.a4 cd4 27.cd4 Qd4 28.Rc2 Qe5 29.Nc4 Qe4 30.Ne3 Rd3 31.Re2 Rb8 32.Kf2 Rbb3 33.g4 Qa4 34.h4 Qb4 35.Kg3 a5 36.h5 a4 37.Nc2 Rf3 38.Kg2 Rg3 39.Kf1 Rbf3 40.Rf2 Qb1 41.Ke2 Qc2 42.Ke1 Qf2 43.Kd1 Rg1# 0–1. Craig485586 – goodlookingginger, ChessWorld.net, 2010.

4.f3 b6 5.e3 Bb7 6.Bd3 Bd6 7.b5 c5 8.bc6 Bc6 9.Ne2 0–0 10.g3 Nbd7 11.c3 b5 12.0–0 e5 13.h4 (13.de5!? Ne5 14.Bc1–/+) 13...e4 14.Bc2 ef3 15.Rf3 Qc7 16.a4 a6 17.a5 (17.Bc1 Ne4–/+) 17...Nh5 (17...Ne4 18.h5–+) 18.g4 Nhf6 19.Nf4 (19.Bf5 Ne4–+) 19...Ng4 20.Rg3 Bf4 (20...Ngf6 21.h5–+) 21.Rg4 (21.ef4 Ngf6–+) 21...Bh6 22.e4 Bd2 23.Qd2 Nf6?? (23...de4 24.Qg5 g6 25.Be4–+) 24.Rg2?? (better is 24.Rg7! Kh8 25.e5 Kg7 26.Qg5 Kh8 27.Qf6 Kg8 28.Ra2=) 24...de4–+ 25.Qh6 (25.Qh6 g6 26.Qg5–+). A_Pony_Named_Wibbles – delightful_porridge, ChessWorld.net, 2013.

4.Nf3 Bd6 =.

3.e3 Bb4

4.c3 Ba5 5.Qa4 c6 6.Bd3 Nf6 7.f3 (7.Nf3 Nbd7–/+) 7...Na6 (better is 7...0–0!?–/+) 8.Ba6+= ba6 9.Qc6 Bd7 10.Qa6 0–0 11.g4 (11.Ne2 Re8=) 11...Ne8 (better is 11...Qc7!? 12.Qd3 Bb5+=) 12.Ba3+= Nd6?? (better is 12...Qc7 13.Bc5 Bc8=) 13.Bd6+– Ba4 (13...Re8+–) 14.Bf8 Kf8 15.Qd3 (15.Ne2 Qc7+–) 15...g6 (15...Qh4 16.Ke2+–) 16.h4 Rb8 17.Ne2 (better is 17.h5 Rb2 18.hg6 fg6 19.Rh7 Qd6+–) 17...Rb2 18.Nd2 (better is 18.0–0+–) 18...Qb6?? (better is 18...Bb5 19.c4 Rd2 20.Qd2 Bd2 21.Kd2 Bc4+=) 19.0–0 (better is 19.e4+–) 19...Bb5?? (better is 19...Bc2 20.Nc4 Bd3 21.Nb6 ab6+=) 20.Nc4?? (better is 20.c4 Rd2 21.Qa3 Kg7 22.cb5 Re2 23.f4+–) 20...Bc4–+ 21.Qd1 Be2 22.Qa4 h5 23.Rf2 hg4 24.Qa3 Kg7 25.fg4 Rb1 26.Rb1 Qb1 (26...Qb1 27.Kg2 Bd3–+) 0–1. rgp – WirralBoy, ChessWorld.net, 2013.

4.c3 Ba5 5.Bd2 c6 6.c4 Nf6 7.Qa4 (7.Ba5 Qa5 8.Qd2 Qd8=+) 7...Bd2 (7...Bc7 8.Nf3–/+) 8.Nd2 Bd7 (8...0–0 9.Ngf3–/+) 9.Qc2 (9.c5 0–0=+) 9...Na6 (9...c5 10.dc5 Bc6 11.cd5 Nd5 12.Ngf3=) 10.c5 (10.Rb1 Rb8=+) 10...Qa5 11.0–0–0? (better is 11.Ba6!? Qa6 12.Ngf3=+) 11...Nb4–+ 12.Nb3? (better is 12.Qb3–+) 12...Qa3 13.Qb2 Qa2 14.Qa2 Na2 15.Kb2 Nb4 16.Nf3 Ng4 17.Rd2 Nf2?? 18.Rf2+/– Nd3?? 19.Bd3+– a5 20.Ra1 a4 21.h4 0–0–0 22.Na5 b5 23.Ne5 Kb8 24.Nf7 Rdf8 25.Raf1 Rhg8 26.Bh7 Rh8 27.Nh8 Rh8 28.Rf7 (28...Kc7 29.Rg7+–) 1–0. bgoodier – taff, net–chess.com, 2001.

4.c3 Bd6 5.Ba3 –/+.

4.Bd2 Bd2 5.Qd2 Nf6 6.Nf3 Nc6 7.Bb5 Bd7 8.Bc6 Bc6 9.0–0 0–0 10.Qd3 Re8 11.Ng5 g6 (11...Ne4 12.Nf3–/+) 12.f3 (12.Nf3 Nd7+=) 12...a6 13.g3? (better is 13.Nc3–/+) 13...Bb5–+ 14.Qd1 Bf1 15.Kf1 Kg7 16.h4 h6 17.Nh3 Qd7 18.a4 e5 19.g4 b5 20.c3 c6 21.a5 Qd6 22.g5 hg5 23.Ng5 (23.hg5 Nh5 24.Kf2 Kg8–+) 23...ed4 24.e4 (24.Qd4 c5 25.Qd2 Qe5–+) 24...de4 25.Nd2 (25.Qd4 Qf4 26.Na3 Rad8–+) 25...e3 26.Nde4 Ne4 (better is 26...Qh2!? 27.Qd4 e2 28.Ke1 Qh4 29.Ke2 Qg5 30.Kf1 Re4 31.fe4–+) 27.Ne4 Qh2 (better is 27...Re4 28.fe4 Qf4 29.Kg2 Qe4 30.Qf3 Qf3 31.Kf3 dc3 32.Ke3 b4–+) 28.Qe2 (28.Qd4 Re5 29.Ra2 Qh1 30.Ke2–+) 28...Qh4 (28...Qh1) 29.cd4 Qh1 0–1. karlsdad – pieeater, ChessWorld.net, 2012.

4.Bd2 Qd6 5.Nf3 (5.c3 Ba5=) 5...Nf6 (5...Bd2 6.Nbd2 Nf6 7.c4=+) 6.Be2 (6.c3 Ba5 7.Qa4 Nc6=) 6...Ne4 (6...0–0 7.c3 Ba5 8.c4 Bd2 9.Nbd2=+) 7.c3 Ba5 8.0–0 (8.Qa4 Nc6=+) 8...0–0 (8...Nd2 9.Nfd2 c6 10.e4–/+) 9.c4=+ Bd2 (9...Nd2 10.Nbd2 Nc6 11.Qc2=+) 10.Nbd2 (10.Nfd2 e5=+) 10...Nd2 (10...Nc3 11.Qe1=+) 11.Qd2 c5 (11...dc4 12.Bc4 Nc6 13.Qc2=) 12.cd5 (12.dc5 Qc5 13.cd5 Qd5 14.Qd5 ed5=) 12...Qd5 13.dc5 Qc5 14.Rfc1 (14.Rac1 Qb6=) 14...Qe7=+ 15.Rc2 (15.Qc2=+) 15...Bd7 (15...Nc6 16.Nd4=+) 16.Rac1 (16.Rc7!?+=) 16...Bc6=+ 17.Nd4 (17.Qa5 Rd8=+) 17...Be4 (17...Rd8 18.Qa5=+) 18.Bd3 Bd3 19.Qd3 Na6 20.a3 (20.Nc6 Qg5=) 20...Rfd8=+ 21.Qb3 (21.Rc3 Qd7 22.Qc2 Rab8=+) 21...e5 22.Nf5 (22.Nf3 b6–/+) 22...Qd7–/+ 23.e4?? (better is 23.Rc3–/+) 23...Qd1!? (24.Rd1 Rd1#) 0–1. hansson – Harismuha, ChessWorld.net, 2004.

4.Bd2 Bd6 5.c4 –/+.

4.Nd2 Nf6 5.Rb1 a5 6.a3 Bd2 7.Bd2 0–0 8.Rb4?? (better is 8.c4–/+) 8...ab4–+ 9.Bb4 Re8 10.Bb5 c6 11.a4 (11.Bd3 b6–+) 11...Ne4 (better is 11...cb5 12.ab5 Bd7 13.Qb1–+) 12.Bd3 Ra4 13.Qd2 (13.c3 Ra8 14.Qb1–+) 13...Nd2 14.Bd2 Ra1 15.Ke2 e5 16.Bc3 Ra8 (better is 16...Ra3!? 17.Kd2 ed4 18.Bd4 Qa5 19.Kd1–+) 17.de5 Qg5 18.Nf3 Qg2 (18...Bg4!? 19.h3 Bf3 20.gf3–+) 19.Rg1 Qg1! 20.Ng1 Bg4 21.f3 Bh5 0–1. Zoz – Paulocesar, playchess.de, 2006. (=1.d4 d5 2.b4 e6 3.e3 Bb4)

3.Nf3 Bb4

4.c3 Ba5 5.e3 Nf6 6.Bd3 0–0 7.Ba3 Re8 8.0–0 Nc6 9.Qc2 e5 10.Ne5 Ne5 11.de5 Re5 12.Nd2 Bf5?? (better is 12...c6–/+) 13.Bf5+– g6 14.Bd3 Ng4 (14...Qd7 15.Rab1 c6 16.Nf3+–) 15.Rab1 (15.Nf3 Rh5 16.Qa4 d4 17.Qd4 c5+–) 15...Qf6 (15...Bb6 16.h3 Nf6 17.c4+–) 16.h3 Ne3 (16...Nh6 17.Rb7 Bb6 18.Rb1+–) 17.fe3 Re3 (17...Qc6 18.c4 Bd2 19.Qd2 dc4+–) 18.Rf6 1–0. Fritz 11 – sebastgs, casual, 2013.

4.c3 Bd6 5.Ba3 Nf6 6.Qa4 Bd7 7.Qb3 Ba3 8.Na3 0–0 (8...b6!?–/+) 9.Qb7=+ Nc6 10.Rb1 Rb8 11.Qa6 Rb1 12.Nb1 Qb8 13.Qd3 Qb2 14.e3 Qc1 (14...Rb8 15.Nfd2–/+) 15.Qd1=+ Qd1 16.Kd1 Re8 (16...Rb8 17.Nbd2=) 17.Bd3 e5 18.de5 Ne5 19.Ne5 Re5 20.Nd2 Re8 21.c4 Bc6 22.Nf3 Rd8 23.Ke2 dc4 24.Bc4 Bf3 25.Kf3 c6 26.Rb1 Nd5? (better is 26...Nd7 27.Ke4 Nb6=) 27.Rb7+– Ra8 (27...g5 28.Ra7 Rd6 29.a4+–) 28.e4 Nb6 29.Bf7 Kh8 30.e5 g6 31.Ke4 Kg7 32.Rc7 Na4 (32...Kf8+–) 33.Bb3 Kh6 34.Ba4 Rb8 35.Bc6 a5 (35...Rb2 36.e6 Re2 37.Kd5 Ra2+–) 36.e6 Rb4 37.Kd5 Rb2 38.e7 Rd2 39.Ke5 Re2 40.Be4 Ra2 41.e8Q (41...Rf2 42.Qe7 Rf7 43.Qf7 Kh5 44.Qf4 a4 45.Rh7#) 1–0. pierre – ravi12346, internet, 2007.

4.c3 Bd6 5.e3 Nf6 6.Bd3 0–0 7.0–0 b6 (7...Nbd7 8.Ba3–/+) 8.Re1 (8.Nbd2 Nbd7–/+) 8...Bb7 (8...Ba6 9.Ba3–/+) 9.h3 (9.Nbd2 c5–/+) 9...Nbd7 (9...c5 10.dc5 bc5 11.Na3–/+) 10.Ba3 Ba3 11.Na3 a6 (11...c5 12.Rb1–/+) 12.c4 (12.Nb1 c5–/+) 12...dc4 (12...Qe7 13.Nc2–/+) 13.Nc4 Nd5 (13...c5 14.Rc1–/+) 14.Qd2 (14.Qb1 N7f6=+) 14...c5 15.Be4 N7f6–/+ Black gets strong initiative 16.Bd5 Bd5 17.Nfe5 cd4 18.Qd4–/+ Bc4 19.Nc4 Qd4 20.ed4 b5 21.Ne5 Rfd8 22.Red1 Rd5 23.a3 Rad8 24.Nf3 Ne4 25.Rd3 e5 26.Rad1? Nc5 27.R3d2 Nb3–+ 28.Rb2 Nd4 29.Nd4 Rd4 30.Re1 Rd1 31.Rb1 Rb1 32.Rb1 f6 33.g4 Rd3 34.Kg2 Ra3 35.Rc1 b4 36.Rc8 Kf7 37.Rc7 Kg6 38.h4 b3 39.Rb7 a5 40.h5 Kh6 41.f3 Ra2 42.Kg3 b2 43.g5 fg5 44.Kg4 a4 45.Rb6 g6 46.hg6 hg6 47.Kg3 a3 48.Rb5 Ra1 49.Kf2 b1Q 50.Rb1 Rb1 51.f4 gf4 52.Ke2 a2 53.Kf3 a1Q 54.Ke4 Qd4 55.Kf3 Rb3 56.Kg4 Qg1 (57.Kh4 g5#) 0–1. iboyd (1950) – tomy (2260), net–chess.com, 2006.

4.c3 Bd6 5.Nh4?? Qh4–+ 6.g3 Qe7 7.Bg2 Nf6 8.Bg5 Nc6 9.Bf3 Bd7 10.0–0 h6 11.Bf4 (11.Bf6 Qf6 12.Nd2 0–0–+) 11...Bf4 12.gf4 0–0–0 13.Qa4 g5 14.Nd2 g4 (better is 14...gf4!? 15.Rab1–+) 15.Bg2 h5 16.Rfb1 h4 17.Rb3 g3! 18.fg3 (18.fg3 hg3 Combination; 18.hg3 hg3 Combination) 18...hg3 (18...hg3 19.hg3 Rdg8–+) 0–1. horsehold – pieeater, ChessWorld.net, 2013.

4.Bd2 Bd2 5.Nbd2 Nf6 6.e3 Nc6 7.Bb5 Bd7 8.a3 Qe7 9.Nb3 a6 10.Bc6 Bc6 11.Ne5 0–0 12.Nc5 (12.Na5 Qd6–/+) 12...b6 (12...Qd6!?–/+) 13.Nc6+= Qd6 14.Na6 (better is 14.Na5!+=) 14...Ra6–/+ 15.Nb4 Raa8 (15...Ra3! 16.Nd3 Rfa8 17.Ra3 Qa3–+) 16.0–0–/+ c5 17.dc5 bc5 18.Nd3 c4 19.Nf4 (19.Nb4 Ra4–/+) 19...e5 (19...Ra3!? 20.Nh5 Nh5 21.Qh5 Rfa8 22.Ra3 Ra3–+) 20.Nh5+= Rfe8 (20...Nh5 21.Qh5 Rfb8 22.Rfd1+=) 21.a4 (21.Nf6 gf6 22.Qg4 Kh8=) 21...e4 (21...Nh5 22.Qh5 Reb8 23.f4 ef4 24.Rf4+=) 22.a5 (22.Nf6 gf6 23.Qg4 Kh8 24.a5+=) 22...g6 (22...Nh5 23.Qh5 Qd8 24.a6=) 23.Nf4 (better is 23.Nf6!? Qf6 24.Qd5+/–) 23...Kg7 24.c3 h6 Black claimed a win on time 0–1. glo1 – pieeater, ChessWorld.net, 2013.

4.Bd2 Bd6 5.e3 –/+.

3.Bf4 Bb4–/+

4.c3 Ba5 5.Qa4 (5.e3 Ne7–/+) 5...Nc6 (5...c6 6.e3–/+) 6.e3 a6 (6...Bd7 7.Qb3–/+) 7.Nh3 (7.Nf3 Nge7+=) 7...h6 (7...f6 8.Ng1–/+) 8.Nd2 (8.Bd3 Nf6–/+) 8...Nf6 (8...Bc3 9.Rc1 Bd2 10.Kd2–+) 9.Bd3 (9.Qc2 g5 10.Bg3 g4+=) 9...0–0 (9...Bc3 10.Rd1–+) 10.0–0 (better is 10.Qa3!?–/+) 10...Bc3–+ 11.Qc2? (better is 11.Rad1–+) 11...Ba1 12.Ra1 Nb4 13.Qb1 Nd3 14.Qd3 b5 (14...e5 15.Be5 Bh3 16.gh3–+) 15.Rc1 Ra7 (better is 15...Ne8–+) 16.g4 (16.Qc2 Ne8 17.Nb3–+) 16...Ng4 17.f3 (17.Nf3 f6 18.Kg2 e5 19.de5 fe5 20.Ne5 Ne5 21.Be5 Qh4–+) 17...Nf6 (17...Qh4 18.fg4 Qg4 19.Kh1 Qh3 20.Bc7–+) 18.Rc6 (18.Qc3 Ne8 19.Nf2 Qf6–+) 18...Nh5 19.Be5 Bd7 20.Bc7 (20.Rc5 f6 21.Bg3–+) 20...Rc7 21.Ra6 (21.Rc7 Qc7 22.Nb3 e5–+) 21...Rc1 (21...e5 22.Nf2 Qg5 23.Kh1 Rc1 24.Nf1 ed4 25.f4–+) 22.Nf1 (22.Kg2 Qh4 23.Ra7 Qe1–+) 22...Qh4 (22...e5 23.Nf2 Qg5 24.Kh1 ed4 25.f4–+) 23.Nf2 b4 (better is 23...Ng3 24.Nd1 Nf1 25.Kf1 Qh2 26.Ra7–+) 24.Rd6 (24.Kg2 Rb8 25.Ra5 Qg5 26.Ng3 Rc3–+) 24...Qe7 (24...Ng3 25.Rd7 Nf1 26.Qf1 Rf1 27.Kf1–+) 25.Qa6 (25.Rb6 Rfc8 26.Kg2 R8c3 27.Rb8 Bc8–+) 25...Rb8 (better is 25...Bc8 26.Qb6 Qg5 27.Ng4 e5–+) 26.e4 (26.Rb6 Qg5 27.Ng4 Rb6 28.Qb6–+) 26...Bb5 27.Qa5 Qd6 (27...Rf1 28.Kg2 Nf4 29.Kg3 Rg1 30.Kf4 Qg5) 28.e5 Rf1 29.Kg2 Qe7 (29...Nf4 30.Kg3 Qe7 31.Qd8 Qd8 32.Nh3 Ne2 33.Kg4 Rg1 34.Kh5 g6 35.Kh6 Qh4) 30.a4 Nf4 0–1. Kusserow,Peter (2000) – Popiak,Detlef (2060), remoteschach.de, 2005. (=1.d4 d5 2.b4 e6 3.Bf4 Bb4)

4.c3 Bd6 5.Bd6 cd6 6.e3 –/+.

4.c3 Be7 5.Nf3 –/+.

3.Bf4 Nf6

4.a3 =.

4.e3 Bb4–/+ 5.c3 Bd6 6.Be5 Be5 7.de5 Nfd7 8.Nh3 (8.Qg4!? 0–0 9.Nf3–/+) 8...Ne5–+ 9.Nf4 Nbc6 10.Bb5 a6 11.Bc6 bc6 12.0–0 Bd7 13.Nd2 0–0 14.Rb1 Re8 15.a4 c5 16.Nf3 (better is 16.Qh5 Qf6 17.c4–+) 16...c6?? (better is 16...Nf3 17.Qf3 Ba4–+) 17.Ne5+– a5 (better is 17...f6!? 18.Nd7 Qd7+–) 18.Qg4 Re7?! (18...Ra7 19.Nh5 g6 20.Rb2+–) 19.c4 (19.Nh5 g6+–) 19...d4? (better is 19...f6 20.Nd7 Qd7+–) 20.Nh5 g6 21.Nf6 Kg7 22.Qf4 h6 23.Rb7 h5 24.Nfd7 de3 25.fe3 f5 26.Rd1 Ra6 27.Qg3 Ra8 28.Nc6 Qe8+– 29.Ne7 Qe7 30.Nc5 Qb7 31.Nb7 Kf6 32.Qh4 Kg7 33.Rd7 Kh6 34.Qf4 g5 35.Qe5 (35.Qe5 h4 36.Qf6 Kh5 37.Rg7 Rd8 38.Qg5) 1–0. 488 – pieeater, ChessWorld.net, 2013.

4.Bg5 Bb4–/+ 5.c3 Bd6 6.Bf6 (6.e4!? de4 7.Nd2–/+) 6...Qf6–+ 7.e3 Nc6 8.Bb5 a6 9.Bc6 bc6 10.Nd2 e5 11.de5 Be5 12.Rb1 0–0 13.h4 c5 14.h5 c6 15.Rb3 (15.c4 Bf5 16.Rb7 Rab8–+) 15...Bc3 16.Ne2 Be5 17.f4 Bd6 18.Nf3 (18.h6 g6 19.Qc2–+) 18...c4 19.Rb1 c5 (better is 19...Bf5!? 20.Rb7 Rfb8 21.Rb8 Rb8 22.0–0–+) 20.0–0? (20.Qd5 Ra7–/+) 20...Bg4 (better is 20...Bf5 21.Qd5 Bb1 22.Rb1 Rae8–+) 21.Qd5 Bh5?? (21...Rfd8 22.Qc4 Bh5 23.Nc3–/+) 22.Qc4?? (better is 22.Qh5 Qe6 23.Ne5 Be5 24.fe5+/–) 22...Rfe8 23.e4 Bf4 24.Nc3? Rec8 25.Nd5 Qe6 26.Rb6 Be3?? 27.Kh2?? Qd7–/+ 28.Ne3? Qc7–+ 29.g3? a5 30.Rfb1 Bf3 31.Nf5?? g6?? 32.Nh4?? Bg4–/+ 33.Ng2 Bf3?? 34.Nf4?? Kg7?? 35.Rb7+– Qd8 36.Qf7 Kh6 37.Qh7 Kg5 38.Qh4# 1–0. karlsdad – pieeater, ChessWorld.net, 2013.

3.h4 Bb4–/+

4.c3 Bd6 5.Bg5 Ne7 6.Be7 Qe7 7.g3 Nc6 8.e3 Bd7 9.Bb5 a6 10.Bc6 Bc6 11.f4 Qf6 12.g4 0–0–0 13.g5 Qf5 14.Nf3 h6 15.Nbd2 (15.Rg1 Qe4 16.Qe2 Bb5–+) 15...hg5 (15...Qd3 16.Kf2–+) 16.fg5? (16.Ng5 Bb5 17.Ndf3 Be7–+) 16...g6 (better is 16...Bg3!? 17.Kf1–+) 17.Qb3 e5 (17...Qd3 18.0–0–0–+) 18.0–0–0 e4 19.Ng1 (19.Ne5 Be5 20.Rdf1 Qg4–+) 19...Rde8 (better is 19...Qg4!? 20.Nh3–+) 20.Rf1 Qg4 21.Kc2?! (21.c4 Rh4 22.Rh4 Qh4–+) 21...Re7 22.Kb1 (22.c4 Qg2 23.Nh3 dc4–+) 22...Bb5 23.Rf2 Bg3 24.Rg2 Bd3 25.Kb2 Re6 26.Nf1?? Bf1 27.Rd2 Rb6 28.Qb6 cb6 29.Rc2 Qd1 30.Rc1 Qd2 31.Rc2 Qe3 32.Rc1 Be1 33.Kb3 Bc4 34.Kb2–+ Rh4 35.Rh4 Bh4 36.Ka1 Qc1 0–1. dunk0104 – pieeater, ChessWorld.net, 2013.

4.c3 Bd6 5.Bg5 Ne7 6.Nf3 0–0 7.Na3 c6 8.e3 Qc7 9.Be7 Ba3 10.Ba3 Qa5 11.Bf8 Kf8 12.Ng5 Kg8 13.Qh5 Qc7 14.Bd3 f5 15.Nh7 Nd7 16.Ng5 Qd6 17.0–0 Qa3 18.Qe8 Nf8 19.Qg6 Qc3 20.Rad1 Nh7 21.Nh7 Bd7 22.Nf6 Kh8 23.Nd7 Rg8 24.Qh5 1–0. arthur75 – pulaster, gameknot.com, 2013. (=1.d4 d5 2.b4 e6)

4.c3 Bd6 5.Nh4?? Qh4–+ 6.g3 Qe7 7.Bg2 Nf6 8.Bg5 Nc6 9.Bf3 Bd7 10.0–0 h6 11.Bf4 (11.Bf6 Qf6 12.Nd2 0–0–+) 11...Bf4 12.gf4 0–0–0 13.Qa4 g5 14.Nd2 g4 (better is 14...gf4!? 15.Rab1–+) 15.Bg2 h5 16.Rfb1 h4 17.Rb3 g3! 18.fg3 (18.fg3 hg3 Combination; 18.hg3 hg3 Combination) 18...hg3 (18...hg3 19.hg3 Rdg8–+) 0–1. horsehold – pieeater, ChessWorld.net, 2013.

2.d4 Bf5

3.a3 f6 4.Nd2 e5 5.de5 fe5 6.Ngf3 Bd6 7.e3 Nd7 8.Nb3 c6 9.Be2 e4 10.Nfd4 Qf6 11.Nf5 Qf5 12.Bg4 Qf6 13.Rb1 Ne5 14.Bh3 g5 (14...Ne7 15.Bb2+=) 15.Bb2 (better is 15.Qh5 Ke7 16.Nd4=) 15...Qh6?? (15...h5!? 16.g3 Nf3 17.Kf1 Be5–/+) 16.Bf5 (better is 16.Nc5+/–) 16...Ne7= 17.Nd4 0–0 (worse is 17...Nf5 18.Nf5 Qg6 19.Nd6 Qd6 20.Qh5 Kd7 21.Qg5+/–) 18.Be6 Kh8 19.Bg4 Qh4 20.Bf5?? Nf5–+ 21.Nf5 Rf5 22.g3 Qh3 23.Rf1 Raf8 24.f4 Qh2 25.Rg1 Kg8 26.Rf1 Nf3 27.Rf3 ef3 28.Qf3 Qg1 29.Qf1 Qg3 30.Kd2 Qh2 31.Kd3 Qg3 32.Qh1?? Bf4–+ 33.Re1 Re8 34.Bd4 Re4 35.Re2 Rf7 36.Qh6 Rfe7 37.Qf6 Re3 38.Re3 Re3 39.Kd2 Qe1 0–1. capacuba (2320) – cervejarj (2155), net–chess.com, 2013. (=1.d4 d5 2.b4 Bf5)

3.Na3 e6 4.c4? Bb4–+ 5.Bd2 Ba3 6.Qa4 Nc6 7.Qa3 Nd4 8.Qc3 Nc2 9.Kd1 d4 10.Qb2 Na1 11.Qa1 Nf6 12.Bg5 0–0 13.Nf3 c5 14.g3 h6 15.Bf6 Qf6 16.Bg2 Rad8 17.Kd2 e5 18.Nh4 d3 19.e3 Be6 20.Be4 Qf2 21.Kc3 Qc2# 0–1. kong – KrustytheClown, ChessWorld.net, 2005.

3.Bb2 Nc6 4.a3 Nf6 5.Nc3 (5.e3 e6=+) 5...e6 6.Rc1 (6.Nf3 Bd6=+) 6...Bd6 7.h3 (7.e3 a5 8.b5 Ne7–/+) 7...Ne4 (better is 7...a5 8.b5 Ne7–/+) 8.g3? (8.Ne4 Be4 9.Nf3 0–0=+) 8...Nc3 (8...Ng3 9.fg3 Bg3 10.Kd2 Qg5 11.e3 Bf2+=) 9.Bc3–/+ 0–0 10.h4 (10.Nf3 a5 11.b5 Na7–/+ (< 11...Ba3 12.bc6 Bc1 13.cb7+=)) 10...e5 11.Nf3 ed4 12.Bd4 Nd4 13.Qd4 Qe7 14.Qd5=+ Be4 15.Qb3 Bf3 16.Rh2?? Bc6 17.c4 Qe5 18.c5 Be7 19.e3 Rad8 20.Bg2 Bg2 21.Rg2 Bd6 22.c6?? bc6 23.Rc6 Rfe8 24.f4 Qa1 25.Kf2 Re4 26.Rd6 Rd6 27.Rg1 Qf6 28.Rc1 Rd2 29.Kf3 Re6 30.Rc7 Ra6 31.b5 Rb2?? 32.Rc8 Qd8 33.Rd8 (33.ba6?! Qc8 (33...Rb3?? 34.Rd8) 34.Qb2 h5+–) 1–0. esko – islanderfan, net–chess.com, 2001.

3.b5 b6 4.e3 (4.Nf3 a6 5.e3 c6 6.ba6 e6=) 4...h5 (4...Nf6 5.Nf3=) 5.Nc3 Nf6 (5...e6+=) 6.Ba3 (6.Bd3 e6=) 6...Rh6 (6...a6 7.ba6 e6 8.Bb5 c6 9.Bf8 Kf8 10.Bd3=) 7.g3 (7.Bd3!? e6 8.Bb2=) 7...e6 (7...a6 8.ba6 e6 9.Bb2=+) 8.Bf8 (8.Bb2 h4=+) 8...Kf8 9.Rb1 (9.Nf3 a6=+) 9...h4 (9...a6 10.Nf3–/+) 10.Nf3 (10.Bd3 hg3 11.fg3 a6=+) 10...hg3 11.fg3 a5 12.ba6 Na6=+ 13.Ne5 Bh3?? 14.Bd3 Ng4?? 15.Nf3 Ne3 16.Qd2 Nf1?? 17.Qe2?? Rf6? 18.Bh7?? Nb4?? 19.Rb4+= Qb8?? 20.Ng1 c5+= 21.Rb5 cd4 22.Nd1?? Ra5 23.Rb2 Qa8?? 24.Nh3+– Rc5 25.Qf1 Qa5 26.Ke2 d3? 27.Bd3 Rf1 28.Rf1 d4 29.Ng5 Re5? 30.Be4?? Rg5= 31.Bc6?? d3 32.cd3+/– Qa3 33.Rb6 Qa2 34.Ke3?? Re5 35.Kf4?? Rh5 36.Rb8 Ke7 37.g4?? Ra5 38.h3?? e5 39.Ke4?? Qd2?? 40.Re8?? Kd6= 41.Bb7?? Qe2 42.Ne3 Ra4 43.Kf5 g6 44.Kf6= Qe3 45.Kf7 Ra7 46.Rf6 Kd7?? 47.Bc8 Kc7+= 48.Be6 ½–½. Franziska,Franzi (2110) – Lehmann,Martin (1690), remoteschach.de, 2002.

3.c3 Nf6 4.e3 Nbd7 5.Bd3 Bg4 (5...Bd3 6.Qd3 e6 7.Nf3=+) 6.f3= Bh5 7.Nd2 (7.g4 Bg6=+) 7...e5=+ 8.de5 (8.Ne2 Bg6 9.e4 ed4 10.Nd4 Ne5=+) 8...Ne5–/+ 9.Ne2?? (better is 9.Bc2–/+) 9...Nd3–+ 10.Kf1 Nc1 11.Qc1 Bd6 12.g4 Bg6 13.Kg2 0–0 14.h3 h5 15.Rd1 h4 16.Nd4 Bg3 17.e4 de4 18.Nc4 ef3 19.Nf3 Qe7 20.Ng5 Qe2 (20...Qe2 21.Kg1 Qf2 22.Kh1 Qh2) 0–1. janwillem – gunar, net–chess.com, 2001.

3.Nc3 Nc6 4.e4 Be4 5.Be2?? (5.Ne4!? de4 6.c3=+) 5...Nb4 (better is 5...Bg2 6.b5 Nd4 7.Qd4 Bh1–+) 6.Nf3?? (better is 6.Ne4 de4 7.c3–/+) 6...Nc2–+ 7.Kf1 Na1 8.Bb2 Bf3 9.Bf3 Qd6 10.Bd5 Qg6 11.Bb7 Rb8 12.Qa4 Kd8 13.Qa7 Qc2?? 14.Qb8 Kd7 15.Qa8 Qb2 16.Bc6 Kd6 17.Ne4 Ke6 18.Qc8 1–0. pippuri – islanderfan, net–chess.com, 2001.

3.Nc3 Nf6 4.Nf3 Nc6 5.a3 e6 6.e3 Bd6 7.Bb2 0–0 8.Bd3 Ne4 9.0–0 Qf6 10.Nb5 a5. vpatil – klaussinho, internet, 2010.

3.e3 c6 4.c4 e6 5.Nf3 Bb4 6.Bd2 Qa5 7.a3 Bd2 8.Nbd2 Nf6 9.Be2 Ne4 10.0–0–/+ Nc3 11.Qe1 Nd7 12.Nb1 Ne2 13.Qe2 h6 14.Nh4 Bh7 15.c5 0–0 16.Nd2 e5 17.Nb3 Qc3 18.Rab1? Bb1–+ (19.Rb1 ed4 20.Nd4 Nc5–+) 0–1. gtate (1990) – cmarcolino (2395), net–chess.com, 2005.

3.e3 Nc6 4.g3 Nb4–+ 5.Na3 e6 6.Nf3 Be4 7.Bg2 c6 8.0–0 Qa5 9.Ne5–/+ Na6 10.f3 Ba3 11.fe4=+ Qc3?? 12.Ba3 Qe3 13.Kh1 Qa3 14.Nf7 de4 15.Nh8 e3 16.Qh5 g6 17.Qh7 0–0–0 18.Be4 Qc3 19.Qg6 Qd4 20.Qe6 Kb8 21.Nf7 Rd7 22.c3! Re7 23.Qg6 Nf6 24.cd4 Ne4 25.Qg8 Kc7 26.Rac1 Nb4 27.Qg4 Nd3 28.Qh4 Nef2 29.Kg1 Rf7 30.g4 Nc1 31.Qg3 Kc8 32.Qe3 Ng4 33.Qe8 Kc7 34.Qf7 Kb6 35.Rc1 Ne3 36.Qb3 Kc7 37.Qe3 (37...Kd8 38.d5 a6 39.d6 b5 40.Qe7 Kc8 41.Qc7#) 1–0. danelson – autocage, net–chess.com, 2005.

3.e3 Nf6 (--> 1.b4 Nf6 2.d4 d5 3.e3 Bf5).

3.e3 g6 4.g4 Bd7 5.Nc3 c6 6.a3 Bg7 7.a4 e5–/+ 8.de5 Be5 9.Ra3 Bg7 10.Bb2=+ Nf6 11.Be2 0–0 12.Rb3 Na6 13.g5= Ne8 Black is in command 14.Ba6 ba6 15.Nf3 Bg4 16.Rg1 Bh5 17.h4 Nd6 18.Rg3 Nc4–/+ 19.Qc1 Re8 20.Ba1 d4 21.Ne2 Bf3 22.Rf3 Qd5 23.ed4 Opening the e–file gets Black a lot of play 23...Qe4 24.Qd1 Qh4 25.Rh3 Qg5 26.Rbg3 Qd5 27.c3 Re4 28.Rh2 Rae8 29.f3 R4e7 30.a5 Ne3 31.Qc1? Nf5 32.Rgh3 Qa2 33.Qb2 Qc4 34.Qd2 h5 35.Rf2?? Bh6 36.Qb2 Bf4 37.Kf1 Ne3 38.Kg1 Nd1 39.Nf4 Re1 40.Kh2 Nb2 41.Bb2 Rb1 42.Rg3 Ree1 43.Rgg2 Qb5 44.Re2 Re2 45.Re2 Qe2! 46.Ne2 Rb2 A pinning theme 47.Kg3 Re2 48.f4 f6 49.f5 Rc2 50.fg6 Kg7 51.Kh4 Kg6 52.Kg3 Rc3 53.Kg2 Kg5 54.Kf2 h4 55.Kf1 h3 56.Kg1 Rc2 57.d5 cd5 58.b5 ab5 59.Kh1 Kg4 60.Kg1 Kf3 61.Kh1 Kg3 62.Kg1 Rc1# 0–1. gnusurf(C) (2570) – DGurevich (2525), ICC, 1995.

3.Nf3 Nc6 4.c3 (4.b5 Nb8=) 4...a6 (4...e6 5.Bf4=) 5.Bf4 e6 6.e3. Drunken Pawn – born4evil, internet, 2010.

3.Nf3 e5 4.Ne5 Bb4 5.Bd2 Bd2 (5...Bd6 6.e3=+) 6.Qd2 (6.Nd2 Nd7=) 6...f6 (better is 6...Nd7=+) 7.Qe3?? (7.Nd3!?=) 7...Qe7?? (7...fe5 8.Qe5 Ne7 9.Qg7–+) 8.g4? (8.Qf3 Bc2 (8...fe5?! 9.Qf5 Nd7 10.de5=+) 9.Nd3 Nc6–/+) 8...Be4 9.Rg1?? fe5–+ 10.g5 g6 11.Rg4 ed4 12.Qd4=+ Nd7 13.Nc3?? Bf5?? 14.Nd5?? Qd6 15.Qh8=+ 0–0–0 16.Rd4= Qa3 (16...Qa3 17.Rb4 c6+–). bjhaskins (1670) – islanderfan, net–chess.com, 2004.

3.Nf3 h6 4.e3 a6 5.c4 c6 6.c5 Nf6 7.Nc3 e6 8.a4 Nbd7 9.b5 (better is 9.Be2!?+=) 9...ab5–/+ 10.Bd2 Ne4 11.Ne4 ba4?? (better is 11...de4 12.Ng1 ba4 13.Ra4 Ra4 14.Qa4 b5–/+) 12.Nc3 a3 13.Qb3 b6 14.cb6 Nb6 15.Ne5 Qc7 16.Ra3?? Ra3–+ 17.Qb2 Be7 18.Be2? 0–0 19.0–0 Rfa8 20.Bg4 Bg4 21.Ng4 Nc4 22.Qc2 Nd2 23.Qd2 Ra2 24.Na2+– Qa7 25.Nc3 Bb4 26.Rc1 Qa3 27.Qc2?? f6?? 28.Nb1+– Qa6 29.Qc6 Qc6+= 30.Rc6 Ra1 31.Rc1 h5 32.Nf6 gf6 33.Kf1 Kf7 34.Ke2 Ra2 35.Kd3 Kg6 0–1. dariuscyclone (2390) – grahamtrue (2240), net–chess.com, 2011.

3.f4 e6 4.a3 Nf6 5.Nc3 b6 6.Nf3 a5 7.e3? (better is 7.b5+=) 7...ab4–+ 8.Nb5? (better is 8.Nb1–+) 8...c6 9.Nh4 (9.Rb1 cb5 10.Bb5 Nbd7 11.ab4 Ra2–+) 9...Bg4 10.Be2 (10.Nf3 cb5 11.Bb5 Nbd7–+) 10...Be2 (10...cb5?! 11.Bg4 Ng4 12.Qg4 ba3 13.0–0–+) 11.Qe2 cb5 12.Qb5 Nfd7 13.0–0 (13.Nf3–+) 13...Qh4 14.ab4 (14.Qd3–+) 14...Ra1 15.g3 Qh3 16.Qe2 Bb4 17.Bb2 Ra2 18.Rb1 Ra3! 19.Ba3 Ba3 20.Rb3 f6 (better is 20...Bd6 21.e4 de4 22.Qe4–+) 21.Ra3 e5 (21...Qf5 22.Ra7–+) 22.Rc3 (22.de5 fe5 23.Rd3–+) 22...ef4 (22...0–0 23.Qb5 Qe6 24.Rc7–+) 23.ef4 (23.Rc8 Kf7 24.Rh8 fg3 25.hg3 Qg3 26.Kf1 Qh3 27.Ke1–+) 23...Kd8 24.Rb3 (24.Re3 h5–+) 24...Re8 25.Qd2 g5! 26.fg5 fg5 (better is 26...Qh5!? 27.Kf1–+) 27.Qg5 Re7 (better is 27...Kc8 28.Re3 Re3 29.Qe3 Nc6–+) 28.Qg8?? (28.g4 Qb3 29.cb3 Nc6 30.Qd5 Kc7=) 28...Re8 29.Qd5?? (29.Qg5 Kc8 30.Re3 Re3 31.Qe3–+) 29...Re1 30.Kf2 Qf1 0–1. Korn,Lothar (1700) – Dammer,Dennis (1605), remoteschach.de, 2008. (=1.d4 d5 2.b4 Bf5)

3.h3 e6 4.a3 Nf6 5.Bg5 Be7 6.e3 0–0 7.Nc3 Nbd7 8.Nf3 Ne4 9.Be7 Qe7 10.Ne4 Be4 11.Ne5 (11.Bd3!?=) 11...Ne5–/+ 12.Qd2?? (12.de5 c5–/+) 12...b6 (12...Nd7 13.f3 Bg6 14.c4–+) 13.c3?? (13.de5 Qg5–/+) 13...c5 (better is 13...Nd7–+) 14.de5–/+ d4 15.ed4+= Rfd8 16.f3 Bg6+= 17.Bc4 cd4= 18.cd4 Qh4 19.Qf2 Qd4 20.Rc1?? Qe5 21.Be2 Bd3 22.0–0 Be2 23.Rfe1 Rd2 24.a4 Rad8 25.a5 ba5 26.ba5 a6 27.f4 Qb5 28.Rb1 Qd3 29.Kh2 Bh5 30.Qe3 Qd5 31.Rg1 Qa5 32.Ra1 Qb5 33.Rac1 R2d5 34.Rcf1 Bg6 35.Rf3 Rd3 36.Qf2 Rf3 37.Qf3 h6 38.Rf1 Bd3 39.Rf2 f5 40.h4 Be4 41.Qh5 Ra8 42.Rd2 Qf1 43.Qe2 Qf4 44.g3 Qf3 45.Qf3 Bf3 46.Rd7 Bd5 47.Kg1 a5 48.Rc7 a4 49.Rc1 a3 50.Ra1 a2 51.Kf2 Rb8 52.Ke3 Rb1 53.Ra2 Ba2 54.Kd4 Bd5 55.Ke5 Rg1 56.Kf4 Kf7 57.h5 Kf6 58.Ke3 Rg3 0–1. sosg – flyfisher, Gameknot.com, 2002.

3.h3 Nf6 4.g4 Bg6 5.g5 Ne4 6.h4 e6 7.f3? (better is 7.a3–/+) 7...Ng3–+ 8.Rh3 Bb4 9.Kf2 Nf1 10.Kf1 Nc6 11.e3 h6 12.gh6 Rh6 13.a3 Bd6 14.e4 Rh4 15.ed5 Nd4 16.Qd4 (16.de6 Ne6 17.c3–+) 16...Rd4 17.c3 (17.Nc3–+) 17...Rd1 18.Ke2 Rc1 19.Kf2 Bc5 20.Ke2 Qd5 21.Rh8 Ke7 22.Nd2 (22.Re8 Ke8 23.Nd2 Qd3) 22…Qd3 0–1. dunk0104 – michaelbuss, ChessWorld.net, 2013.

3.a3 e6

4.Bb2 Nf6 5.Nd2 Bd6 6.Ngf3 Nbd7 7.e3 0–0 8.c4 dc4 9.Bc4 Nb6 10.Bb3 Bd3 (10...a5 11.ba5 Ra5 12.Ne5=+) 11.Rc1 a5 12.Bc4? (better is 12.Ne5!? Be5 13.de5=) 12...Nc4–/+ 13.Nc4 Bc4 14.Rc4 ab4 15.ab4 b5 16.Rc1 Bb4 17.Bc3 Qd6 18.0–0 Nd5 19.Bb4=+ Qb4 20.Rb1 Qa4 21.Qd3 c6 22.Ne5 Ne7 23.Nf3 Qa2=+ 24.Ng5 g6 25.e4 Ra3=+ 26.Qd1 Kg7 27.Rc1 h6 28.Nf3 Rb8 29.Ne5 Rb6?? (29...Rb6 30.Nd7 Rba6+/–; better is 29...Rd8=+). willow27 – khani9, ChessWorld.net, 2007.

4.Nc3 Nf6 5.f3 a5 6.b5 Bd6 7.Nh3 Bh3 8.gh3 Nh5 9.Be3 0–0 10.Rg1 Bh2 11.Rg2 Bg3 12.Bf2 Qh4 13.Qd2 Bf2 14.Rf2 Nf4 15.Qe3 Nh3 16.Bh3–/+ Qh3 17.0–0–0 Qh4 18.Rg2 Qe7?? 19.Nd5!+– Qd6 20.Nf4 g6= 21.Rg4 Nd7 22.Rdg1 Nf6 23.Rh4 c6 24.Ng6? fg6–+ 25.Rg6 hg6 26.Kb2 cb5 27.Qg5 (27...Kf7 28.Qb5–+). Garyman – KrustytheClown, ChessWorld.net, 2005.

4.Nd2 Nf6 5.c3 Bd6 6.Ngf3 0–0 7.Nb3 (7.c4 a5+=) 7...b6 8.g3 (8.Bg5 Nbd7+=) 8...Nbd7 9.Bg2 e5 10.0–0 e4 11.Ng5 Qe7 12.Be3 Ng4 13.Qd2 Ndf6 14.Rad1? (better is 14.Bf4!?+=) 14...Ne3–+ 15.fe3 Bd7 (better is 15...Qd7–+) 16.Rf2? (better is 16.Nh3–/+) 16...Ng4–+ 17.Rff1 (17.Nh3 Nf2 18.Nf2–+) 17...Qg5 18.Rf4 Bf4 19.ef4 Qh6 20.h3 Nf6 (20...e3!? 21.Qc1 Nf2 22.Rf1–+) 21.g4 Qh4 (21...Ba4 22.Rb1 Bb3 23.Rb3–+) 22.f5 (22.Qe1 Qe1 23.Re1 a5 24.ba5 Ba4–+) 22...g6 (22...Qg3!? 23.Qe1 Qe3 24.Kh2–+) 23.Rf1 h6 24.Qf4 Qg5 (24...gf5 25.gf5 Qf4 26.Rf4–+) 25.Qc7 (25.fg6 fg6 26.Qg5 hg5–+) 25...Qe3 (25...gf5 26.Qg3–+) 26.Rf2 (26.Kh2 gf5 27.Qe5 Kg7 28.gf5 Rfe8 29.Qg3 Qg3 30.Kg3 Rac8–+) 26...Ba4 27.Qe5 Qg5 (better is 27...Kg7 28.Na1 Qc3–+) 28.h4 (28.fg6 fg6 29.Qg5 hg5 30.Nc1–+) 28...Qh4 29.fg6 (29.Bh3 Bb3 30.Rg2 Qh3 31.Qf6 Rac8–+) 29...fg6 (29...Ng4 30.gf7 Rf7 31.Rf7 Ne5 32.de5 Kf7 33.Nd4–+) 30.Nd2 (30.Rf6 Qf6 (30...Bb3?? 31.Rg6 Kh7 32.Qg7) 31.Qf6 Rf6–+) 30...Qg5 (30...Ng4 31.Qd5 Kh8 32.Ne4 Qh2 33.Kf1 Ne3 34.Ke1 Qg1 35.Bf1 Nd5 36.Rf5 Rf5 37.Nf2 Qf2 38.Kd2 Qe3 39.Ke1 Qc3) 31.Qf4 (31.Qg5 hg5 32.Rf6 Rf6–+) 31...Qf4 (better is 31...e3 32.Qg5 ef2 33.Kf2 hg5 34.c4 dc4 35.Nc4–+) 32.Rf4 Nd7 (better is 32...Bd1 33.g5 hg5 34.Rf2–+) 33.Rf8 Rf8 34.c4 Bc6 35.b5 Bb7 36.a4 Rc8 (36...Rf4!? 37.g5 hg5 38.Bh3–+) 37.cd5 e3 38.Nb3 (38.Nf1 Rc4 39.Ne3 Rd4–+) 38...Kf7 (38...Rc3 39.g5 hg5 40.Bh3–+) 39.a5 (39.d6 Bg2 40.Kg2 Rc3–+) 39...Rc3 40.Na1 Rc1 41.Kh2 Ra1 42.ab6 ab6 43.Kg3 Ke7 (better is 43...Nf6 44.Bf3–+) 44.d6 Kd6 45.Bb7 Rb1 (45...Ra4 46.Kf3 Rd4 47.Ke3 Rg4 48.Be4–+) 46.Bc6 (46.Kf4 Rb5 47.Ke3 Nf6–+) 46...Nb8 (46...Rf1 47.Bg2 Rg1 48.Kh3–+) 47.Be8 (47.Be4 Rb5 48.Kf4 Rg5–+) 47...g5 (better is 47...Kd5!? 48.Bg6 Rb5 49.Bd3–+) 48.Kf3 Kd5 49.Ke3 Rb3 50.Kd2 Kd4 51.e3 (51.Bg6 Nd7 52.Bc2 Rg3 53.e3 Re3–+) 51...Re3 52.Bg6 Rg3 (52...Nd7 53.Bf5 Nf6 54.Kc2–+) 53.Bh5 (53.Bf5 Rb3–+) 53...Rg2 54.Ke1 Ke3 55.Kf1 Rb2 56.Bg6 Ra2 (56...Nd7 57.Be8 Ne5 58.Bc6 Rf2 59.Kg1 Nf3 60.Bf3 Kf3 61.Kh1 Re2 62.Kg1 Re1 63.Kh2 h5 64.gh5 g4 65.h6 g3 66.Kh3 Rh1) 57.Bb1 (57.Bf5–+) 57...Ra1 58.Kg2 (58.Kg1 Kf3 59.Kh2 Rb1 60.Kh3 Rh1) 58...Rb1 59.Kh2 (59.Kg3 Rg1 60.Kh2 Kf2 61.Kh3 Rh1) 59...Kf2 60.Kh3 Rh1 0–1. Nello,Stephane – Le Barh,Thomas, FRA–chT4, 2005. (=1.d4 d5 2.b4 Bf5 3.a3 e6)

4.Nf3 a5 =+.

4.Bf4 Ne7 5.e3 =+.

4.Bf4 Nf6 5.Nd2 a5 6.c3 Bd6 7.Bd6 cd6 8.e3 0–0 9.Nb3 Ne4 10.Rc1 ab4 11.ab4 Ra2 12.Rc2? Rc2 13.Qc2 Ng3!! 14.Qd2 Nh1 15.Nf3 Be4 16.Be2 Bf3 17.Bf3 Qh4 18.h3 Rc8 19.Na5 b6 20.Nb7 Qe7 (20...Rc7 21.Kf1 Rb7 22.Kg1 Qf2 23.Qf2 Nf2 24.Kf2–+) 0–1. Netto – Fahrudin87 (2010), internet, 2006.

3.a3 Nf6

4.c3 Nbd7 5.Nd2 e5 6.de5 Ne5 7.Ngf3 Nf3 8.Nf3 Be7 9.Nd4 Bg6 10.Bf4 c6 11.h3 Ne4 12.Qc1 0–0 13.Nf3 Bf6 14.Bd2 Qb6 15.e3 Rae8 16.Be2 Be7 17.Ne5 Qd8 (worse is 17...Nd2 18.Qd2 Bf5 19.Ra2+=) 18.0–0 Bd6 19.Nf3 b6 20.Be1 f5 21.c4 Bf7 22.Nd2? (better is 22.Nd4!? c5 23.bc5 Bc5 24.cd5 Bd4 25.ed4+=) 22...Be5–+ 23.Ra2 (better is 23.Ne4 Ba1 24.Nc3 Bc3 25.Bc3–+) 23...Nc3 24.Qc2 (24.Nf3 Na2 25.Qc2–+) 24...Ne2 25.Kh1 Bg6 (better is 25...d4 26.ed4 Qd4–+) 26.Nf3 f4 (better is 26...Ng3! 27.fg3 f4 28.Qe2 fe3 29.Qe3 dc4 30.Qc1–+) 27.Qe2–/+ dc4 (27...Be4!? 28.Ne5 Re5 29.f3–/+) 28.Ne5 Re5 29.Rd2?? (29.Qc4 Bf7 30.Qf4 Rg5+=) 29...Qe7 (better is 29...Bd3 30.Rd3 Qd3 31.Qd3 cd3 32.ef4 Re2–+) 30.Qc4–/+ Kh8 31.f3 fe3–+ 32.Rb2 Rd8 33.Qc6 e2 34.Rg1 Bf5 35.Qc3 Rd3 36.Qc4 h6 37.g4? Bg6 38.Kg2 Qf6 39.f4 Be4 40.Kh2 Qf4 41.Rg3 Rg3 42.Bg3 Qg3!! 43.Kg3 e1Q 44.Kf4 Bg6 (44...Bg6 45.Qd4 Re4 46.Qe4 Qe4 47.Kg3 Qe5 48.Kf3 Qb2–+) 0–1. jaortiz (2235) – blackfox (2350), net–chess.com, 2013. (=1.d4 d5 2.b4 Bf5)

4.Nc3 e6 5.e3 a5 (5...Nbd7 6.Bd3 a5 7.b5 Bd6 8.Bf5 ef5 9.Qf3 Ne4; 5...Bd6 6.Bd3 Nbd7 7.Bb2 0–0 8.Nf3 a5 9.b5 Qe7) 6.b5 Bd6 (6...Be7 7.Bd3 0–0 8.Nf3 Qd6 9.a4 Qb6) 7.Bd3 Bd3 (7...0–0 8.Nf3 Nbd7 9.0–0 Ne4) 8.Qd3 0–0 9.Nf3 Nbd7 (9...c5+=) 10.e4 de4 11.Ne4 e5 12.Nd6 (12.Bg5 ed4 13.0–0 Re8 14.Nd6 cd6 15.Nd4 Qc7+=) 12...cd6 13.de5 de5 14.Qe3 (14.Qe2 Qc7 15.0–0 Rac8=) 14...Qc7 15.c3 (15.0–0!?+=) 15...Qc4 (better is 15...Ng4 16.Qd2 Nc5–+) 16.a4? (16.Nd2 Qb5 17.c4 Qc5–/+) 16...Rac8 (better is 16...Nd5!? 17.Qd2 Nc5 18.Qa2 Nd3 19.Kf1 Qa2 20.Ra2 Nc1 21.Rc2–+) 17.Bd2 Nd5 (17...e4 18.Ng5–+) 18.Qe2–/+ Nc3 19.Qc4 Rc4 20.Bc3 Rc3 21.0–0 (21.Kd2 Rfc8 22.Rac1 R3c5 23.Rc5 Rc5–/+) 21...f6–+ 22.Rfd1 Nc5 23.h3 Rc4 24.Nd2 Ra4 (24...Rb4 25.Rdb1–+) 25.Ra4–/+ Na4 26.Nc4 Nc3 27.Ra1 (better is 27.Rd7!?–/+) 27...Nb5 28.Ra5 Nd4 29.Nd6 (29.Nb6 Kf7–+) 29...Rb8 30.Nb5 (30.Ra4 b5 31.Rb4 Kf8–+) 30...Nb5 (better is 30...b6 31.Ra4 Nb5–+) 31.Rb5 b6 32.f3 Kf7 33.Kf2 Ke6 34.Ke3 Kd6 35.g4 (35.f4 Kc6 36.Rb3 b5–+) 35...Kc6 36.Rb3 Rd8 (36...b5 37.Rc3 Kd6 38.Rd3 Ke6 39.Rb3–+) 37.Ke4 (37.Rc3 Kb7–+) 37...g6 38.Rc3 Kb7 39.h4 (39.Rc1 Rd4 40.Ke3 b5–+) 39...b5 (better is 39...Rd4!? 40.Ke3–+) 40.g5 Rd4 41.Ke3 b4 42.Rb3 (42.Rc5 Kb6 (42...Rh4?! 43.gf6 Rf4 44.Re5 Rf6 45.Re7 Kc6 46.Rh7–+) 43.Rc8 Rh4 44.gf6 Rf4 45.Rb8 Kc5 46.Rc8 Kb5–+) 42...f5 (42...Rh4?! 43.gf6 Rf4 44.f7 Rf7 45.Rb4 Kc6 46.Rb8–+) 43.Rd3 (43.Rb2–+) 43...Rd3 44.Kd3 Kc6 45.Kc4 b3! 46.Kb3 Kd5 47.Kc3 e4 48.f4 (48.Kd2 Kd4 49.Ke2–+) 48...Kc5 49.Kd2 Kd4 50.Ke2 e3 51.Kf3 Kd3 52.Kg2 e2 53.Kf2 (53.Kg3 Ke3 54.h5 e1Q 55.Kg2 Qf2 56.Kh3 Kf3 57.hg6 Qg3) 53...Kd2 54.Kg2 (54.Kg3 e1Q 55.Kg2 Ke3 56.Kh3 Kf3 57.Kh2 Qd2 58.Kh3 Qg2) 54...e1Q 55.Kh3 (55.h5 Qe2 56.Kh3 Ke3 57.Kg3 Qf3 58.Kh2 Kf2 59.hg6 Qh5) 55...Ke3 56.Kg2 Qh4 (56...Qf2 57.Kh3 Kf4 58.h5 Qg3) 57.Kg1 Kf3 58.Kf1 Qh1 0–1. Paderewska,Regina – Dymshits,G (2030), World Seniors (Women), Rowy Poland, 2000.

4.Nc3 e6 5.Nf3 a5 6.b5 Nbd7 7.Nh4 Bg6 8.g3 Bh5 9.Bg2 Be7.

4.Nc3 g6 A) 5.e3 Nc6 (5...Bg7 6.Nf3 a5 7.b5 0–0 8.Bd3 e6 9.0–0 Nbd7; 5...a5 6.b5 Nbd7 7.Bd3 e6 8.Nge2 Bd6 9.0–0 0–0; 5...Nbd7 6.Bd3 e6 7.Nf3 Be7 8.0–0 0–0 9.Bb2 c6) 6.Nf3 Bg7 7.Bd3 Ne4 8.Bb2 0–0 9.0–0 a6; B) 5.h3 a5 6.b5 Qd6 7.g3 Nbd7 8.Bf4 Qb6 9.g4 Be6; C) 5.f3 a5 (5...Bg7 6.g4 Be6 7.Nh3 Nc6 8.Nf4 0–0 9.Ne6 fe6; 5...h6 6.g4 Be6 7.Nh3 Qd7 8.Nf4 Bg7 9.Bg2 0–0; 5...Nc6 6.g4 Be6 7.Nh3 Bg7 8.Nf4 0–0 9.Ne6 fe6) 6.b5 h5 7.Nh3 Bh3 8.gh3 Nbd7 9.e4 Nb6; D) 5.Nf3 Bg7 6.h3 0–0 7.g4 Be4 8.Bg2 Qd6 9.0–0 Nbd7.

4.Nf3 a5 5.b5 (5.Nh4 Be6 6.b5 Nbd7 7.Nc3 g6 8.g3 Bg7 9.Bg2 0–0) 5...Ne4 6.Nfd2 Nd2 7.Nd2 Nd7 8.Nf3 e6 9.g3 Bd6.

4.Nf3 e6+= 5.Nh4 (5.Nc3 Nc6 6.b5 Na5 7.Nh4 Bg6 8.g3 Bh5 9.Bg2 Nc4) 5...Be7 (5...Bg6 6.Nc3 Bd6 7.g3 Bh5 8.Bg2 a5 9.b5 c5) 6.Nf5 ef5 7.Nc3 0–0 8.g3 Ne4 9.Ne4 fe4.

4.Nf3 g6 A) 5.Nc3 Nc6 6.Bd2 Bg7 7.b5 Na5 8.e3 0–0 9.Nd5 Qd5; B) 5.h3 Nc6 (5...Bg7 6.Nc3 0–0 7.g4 Be6 8.Bf4 Nc6 9.Bg2 Ne4; 5...a5 6.b5 Qd6 7.g3 Ne4 8.Bf4 Qb6 9.g4 Bd7) 6.Nc3 Ne4 7.Bb2 Bg7 8.g4 Be6 9.Ne4 de4; C) 5.g3 Bg7 (5...Nc6 6.Nc3 Bg7 7.Bg2 0–0 8.0–0 a6 9.Bb2 Qd6) 6.Nc3 0–0 7.Bg2 Ne4 8.Bb2 Nd6 9.Ne5 c6.

3.c3 e6

4.Bf4 Ne7 5.e3 =+.

4.Bf4 Nf6 5.e3 c6 6.Nf3= h6 7.Bd3 Bd3 8.Qd3 a5 9.0–0 ab4–/+ 10.cb4 Qb6 11.a3= Bb4? 12.Bb8+– Rb8 13.ab4 Qb4 14.Nbd2 0–0 15.Rab1 Qd6 16.h3 b6 17.Ne5 c5 18.Ndf3 c4+= 19.Qc3 b5 20.g4 b4=+ 21.Qa1 b3 22.g5 hg5 23.Ng5= Nd7 24.Ngf7 Rf7–/+ 25.Nf7 Kf7 26.f4 Qc7 27.Rf2? c3–+ 28.Qa3 c2 29.Rc1 b2 30.Rfc2 Qc2! 31.Rc2 b1Q 32.Rc1 Qg6 33.Kf2 Rb1 34.Rb1 Qb1 35.Qa7 Qc2 36.Kg3 Qc6 37.h4 Qb5 38.Qa3?? Qe2 39.Qb3 Nf6 40.Qb7 Kg6 41.Qb1 Ne4 42.Kh3 Qf3 43.Kh2 Qg3 44.Kh1 Kh5 45.Qd1 Kh4 46.Qg1 Nf2 47.Qf2 Qf2 48.e4 Qf3 49.Kg1 de4 50.f5 Kg3 51.fe6 Qg2# 0–1. pegan (1865) – redrook (2500), net–chess.com, 2006.

4.Bf4 Nf6 5.e3 Nbd7 6.Nf3 =.

4.Bf4 Nf6 5.e3 h6 6.Nf3 a6 7.Bd3 Bd3 8.Qd3 Be7 9.Ne5 a5 10.b5 0–0 11.a4 c6 12.0–0 cb5 13.Qb5 b6 14.Nd2+= Re8 15.f3 Bf8 16.h3 Qc8 17.Qb6 g5= Black gets in control 18.Bg3 Qc3 19.Nb3 Exerts pressure on the isolated pawn 19...Nbd7 20.Nd7 Nd7 21.Qb5 Qe3 22.Bf2 Qc3 23.Nc5 Nc5–/+ 24.dc5 Reb8 25.c6?? Rb5 26.ab5 Qc4 27.Rab1 Rb8 28.Rfc1 Rb5 29.Rc4 Rb1 30.Kh2 dc4 31.c7 Bd6 32.Bg3 Bc7! 33.Bc7 a4 34.g4 c3 35.Bd6 c2 36.Ba3–+ c1Q 37.Bc1 Rc1 38.Kg2 e5 39.Kf2 a3 40.Ke3 a2 41.Ke4 f6 42.Kd5 a1Q 43.Ke6 Kg7 44.Kf5 Qb1 45.Ke6 Rc6 46.Kd5 Qb5 47.Ke4 Kg6 48.f4 Rc4 49.Kd3 Qb3 50.Kd2 Rc2 51.Ke1 Qb1# 0–1. pegan (1865) – redrook (2500), net–chess.com, 2006.

3.Nc3 e6

4.a3 Bd6 5.Nf3 h6 (5...a5 6.b5+=) 6.e3 Nf6 7.Nh4 Bh7 8.Ne2 (8.Nf3 0–0+=) 8...Nbd7 9.Nf4? (better is 9.Nf3+=) 9...g5–+ 10.Ne6 fe6 11.Nf3 c6 12.c4 Qc7 13.c5 Be7 14.a4 0–0–0 15.b5 g4 16.Ne5? (16.bc6 bc6 17.Ba6 Kb8 18.Nd2–+) 16...Ne5 17.b6 (17.de5 Ne4 18.bc6 bc6 19.Bd2–+) 17...ab6 18.cb6 Qb6 19.de5 Bb4 20.Bd2 Bd2 (20...Ne4 21.a5 Qc5 22.Ra2–+) 21.Qd2 Ne4 22.Qc2 (22.a5 Qb3 23.Qd4–+) 22...Rdf8 23.Qe2 (23.Rd1 Qa5 24.Rd2 Rf2 25.Be2–+) 23...Qb4 24.Kd1 Nc3 25.Kc1 (25.Ke1 Ne2 26.Ke2 Bd3 27.Kd3 Rf2 28.Be2 Qc4 29.Kd2 Qe2 30.Kc3 Qc4) 25...Ne2 26.Be2 (26.Kd1 Nc3 27.Kc1 Rf2 28.Be2 Re2 29.Rb1 Qb1) 26...Qc3 27.Kd1 Qa1 (27...Bc2 28.Kc1 Ba4 29.Kb1 Qc2) 28.Kd2 Qb2 29.Ke1 Qc1 30.Bd1 Bc2 (30...Qc3 31.Kf1 Bd3 32.Kg1 Qe1) 31.f4 (31.f3 Qe3 32.Be2 gf3 33.gf3 Rf3 34.Rg1 Qc3) 31...Qd1 (31...Qe3 32.Be2 Rf4 33.Rf1 Qc3) 32.Kf2–+ Qh1 0–1. sosg – valeriuzaharia, Gameknot.com, 2002.

4.h3 Bb4 5.Bb2 Nf6–+ 6.a3 Bd6 (6...Ba5 7.g4 Bg6 8.Qd2–+) 7.Nf3 h6 8.e3 0–0 9.Bb5 c5 (9...Nbd7 10.0–0–+) 10.dc5–/+ Bc5 11.0–0 a6 12.Ba4 (12.Bd3!? Bd3 13.cd3–/+) 12...b5–+ 13.Bb3 Nc6 14.Ne2 Na5 15.Nfd4 Bg6 16.Nf4 Nc4 17.Bc3 (better is 17.Bc4 Bd4 18.Qd4 dc4 19.Ng6 fg6 20.Qe5–/+) 17...Ba3?? (17...Be4 18.Nde6 fe6 19.Ne6 Ne3–+) 18.Bc4+/– dc4 19.Ra3 Bh7 (better is 19...e5 20.Ng6 ed4 21.Nf8 dc3 22.Qd8 Rd8 23.Ra6 Kf8+/–) 20.Qf3?? (20.Qa1 e5 21.Nc6 Qd6 22.Ne5 Bc2+–) 20...e5?? (20...Be4 21.Qg3 e5+=) 21.Nfe6?? (better is 21.Nc6 Be4 22.Nd8 (22.Be5 Qe8 23.Qg3 Qc6–/+) 22...Bf3 23.gf3+/–) 21...fe6 22.Ne6 Qe7 23.Nf8 Rf8 24.Bb2+= Qb4 25.Bc1 Bc2+= 26.Ra6 e4 27.Qf5+/– Bd3?? 28.Ba3+– Qd2 29.Qe6 Kh8 30.Bf8 Bf1 31.Qf7 Ne8 32.Qe8 Kh7 33.Qg6 (33.Qg6 Kg8 34.Qg7) 1–0. neilo – rayzrating, ChessWorld.net, 2013.

4.h3 Bb4–+ 5.Bd2 Nf6 6.e3 Nbd7 (6...c5 7.Bb5 Nc6 8.Bc6 bc6 9.Nge2–+) 7.Nf3 0–0 8.Nb5 (8.Bd3!?–/+) 8...Bd2–+ 9.Qd2 c6 (9...Ne4 10.Qa5–+) 10.Nd6 Ne4 11.Ne4 Be4 12.Ng1? Rc8 13.Ne2 c5 14.Nc3 cd4 15.ed4 Qa5?? 16.f3?? Bg6 17.Bd3 Qc3 18.Qc3 Rc3 19.Kd2 Rfc8 20.Rac1 Bd3 21.cd3 Rc1 22.Rc1 Rc1 23.Kc1 Kf8 24.Kc2 Ke7 25.f4 Nb8 26.Kb3 Nc6 27.a4 Nd4 28.Kb4 Ne2 0–1. eddie43 – stampyshortlegs, ChessWorld.net, 2011.

3.e3 e6

4.a3 a5 5.b5 Nd7 6.Nf3 c5 7.a4 cd4 8.Nd4 Bg6 9.Ba3 Ba3 10.Na3 Nb6 11.c4 Qd6 12.cd5 ed5 13.Nac2 Qc5 14.Qd2 Nf6 15.Bd3 Ne4 16.Be4 Be4 17.0–0 Bc2 (17...0–0!?=) 18.Rfc1+= (worse is 18.Qc2 Qc2 19.Nc2 Kd7+=) 18...0–0 19.Rc2 Qd6 20.Nb3 Qb4 21.Qb4 ab4 22.a5 Nc4 23.e4 Na3 24.Rc7 Rfb8 (24...b6 25.ab6 de4 26.b7+/–) 25.b6 de4 26.Re1 f5 27.g4 Nb5 28.Rc4 Na3 (28...Nd6!? 29.Rb4 fg4=) 29.Rc5+= (29.Rb4? Nc2 30.Rbe4 fe4 31.Re4 Kf7–+) 29...Rc8 30.Rf5 (worse is 30.gf5 Rc5 31.Nc5 Ra5 32.Ne4 b3–/+) 30...Rc3 31.Re3 Rac8 32.Nd4 (32.Nd2 Rd8 33.Ne4 Re3 34.fe3 b3=) 32...Re3 33.fe3 Nc4 34.Kf2 Ra8 35.Nb3 Rd8 36.Rc5 Nb2 37.Rc7 (better is 37.Kg3 Na4 38.Rc4+–) 37...Na4?? (37...Rf8 38.Kg3 Nd1+/–) 38.Nd4?? (38.Rb7 Kf8 39.Rc7+–) 38...Rb8 39.Rc4 (39.Kg3 Kf8+–) 39...Nc3? (better is 39...Nb2!? 40.Rc2 Nd1 41.Ke2 Nc3 42.Ke1 Rc8+=) 40.Rb4 Rf8 41.Kg3 Nd5 42.Rb3 Ra8 43.Rb5 Ne3 44.Kf4 Nc4 45.Rc5 Na5 46.Ke4 Re8 47.Kf5 Kf7?? (47...Ra8 48.Rc7+/–) 48.h4 (better is 48.Ra5 g6 49.Kf4+–) 48...g6+/– 49.Kg5 Re4 50.Rc7 (worse is 50.Ra5 Rd4 51.Ra7 Rd7+=) 50...Re7 (better is 50...Ke8 51.Nf3 Re3+/–) 51.Kh6 Ke8 52.Re7 Ke7 53.Kh7 Kf7 (53...Nc4 54.Kg6 Ne5 55.Kf5+–) 54.Nb5 (better is 54.g5 Nc4 55.h5+–) 54...Nc4 55.g5 Nb6 (55...Ke7 56.Kg6 Nb6 57.h5+–) 56.Nd6 (better is 56.h5 gh5 57.g6 Ke7 58.Nc7+–) 56...Ke6 57.Nb7 Kf5 58.Nd6 Kg4 59.Kg6 Kh4 60.Kh6 Nd5 61.g6 Ne7 62.g7 Kg4 63.Kh7 Kg5 (63...Kf4+–) 64.Nc8!! Nd5 (64...Nc8 65.g8Q Double attack (65.g8Q Decoy)) 65.g8Q (65.g8Q Kf6 66.Qf8 (66.Qd5?!) 66...Ke5 67.Qc5+–) 1–0. Dinzik,Jan – Nemec,Tadeus, Bratislava Doprastav op, 1996. (=1.d4 d5 2.b4 Bf5 3.e3 e6)

4.a3 a5 5.c3 ab4–/+ 6.cb4 Bb4! 7.Bd2 (7.ab4 Ra1) 7...Bd6 8.Nf3 Nf6 9.Be2 0–0 10.0–0 Ne4 11.Nc3 Nd7 (worse is 11...Ba3 12.Nb1 Qd6 13.Qb3+=) 12.Nb5 Be7 13.Bb4? (better is 13.a4–+) 13...c6 14.Nc3 Bb4 15.Ne4 de4 (15...Be4?! 16.ab4 Qf6 17.Nd2–/+) 16.Ne5 (16.ab4 Ra1 17.Qa1 ef3 18.Bf3–+) 16...Bd6 17.Nc4 Bc7 18.Qb3 Qb8 19.a4 (19.h3 e5–+) 19...Bh2 20.Kh1 Bc7 21.Rfb1 b6 22.Rb2 Qd8 23.Rba2 (23.Kg1–+) 23...Qh4 (23...Qh4 24.Kg1 Qh2 25.Kf1 Qh1) 0–1. Neffgen,Dieter – Taulien,Hans_Juergen, RSX9E – A00 – Sokolsky–1, 2002.

4.a3 Bd6 5.Bd3 Bd3 6.Qd3 Nf6 7.Nf3 b6 8.0–0 0–0 9.c3 c5 10.bc5 bc5 11.Ng5 (11.dc5!? Bc5 12.c4=) 11...cd4 12.ed4 Nc6 13.a4 Qc7 14.Nf3 Na5 15.Nbd2 Rfc8 16.Bb2 Ng4 17.g3 Rab8 18.Ba3 Ba3 19.Ra3 Rb2 20.Qa6 Rb6?? (better is 20...Rcb8–/+) 21.Qa5+– a6 (21...Nf6 22.c4! dc4 23.Rc3+–) 22.Rb3 (22.c4!? dc4 23.Rc3 Rc6 24.Qc7 R6c7+–) 22...Rb3 23.Nb3 Qc3?? 24.Qc3 Rc3 25.Nfd2 Nf6 26.a5 Ne4 27.Ne4 Rb3 28.Nc5 Ra3 29.Na6 Ra5 30.Nc5 Kf8 31.Rb1 Ke7 32.Rb7 Kf6 33.g4 Ra1 34.Kg2 Rd1 35.Rb4 Kg5 36.h3 g6 37.Nb3 h5 38.gh5 Kh5 39.Rb7 Rb1 40.Nc5 Rb7 41.Nb7 Kg5 42.Kf3 Kf5 43.h4 f6 44.Nd8 e5+– 45.de5 fe5 46.Nc6 d4 47.Ke2 Kf4? 48.f3 ½–½. Fists of Steel – rayzrating, ChessWorld.net, 2012.

4.a3 Bd6 5.Nf3 Nf6 6.Bd3 Bd3 7.Qd3 Ne4 (7...Nbd7 8.0–0+=) 8.c4 (8.Qb5 Nd7=) 8...c6 9.0–0 Nd7 10.c5 Bc7 11.Nc3 Ndf6 12.Ne5 Nc3 13.Qc3 Ne4 14.Qc2 0–0 15.f4 (15.f3 Nf6=) 15...Be5 16.de5 Qh4 17.Bb2 g6 (17...a5 18.Bd4+=) 18.Rf3 Qe7 19.Bd4 Qc7 20.g4 (20.Rff1 a5=) 20...b5 21.h4 (21.a4 a5 22.ab5 cb5 23.ba5 Ra5 24.Ra5 Qa5+=) 21...a5 22.Rff1 Qe7 23.Qh2 ab4 24.ab4 Ra4 25.f5 (25.Rfb1 Rfa8–/+) 25...Rfa8 (25...Rb4!? 26.f6 Qc7–/+) 26.f6 Qf8 27.Rfb1 Ra1 28.Ra1 Ra1 29.Ba1 Qa8 30.Bd4 Qa4 31.Qb2 (31.Qe2 Qb4 32.Kg2 Qc4–+ (32...Nc5?! 33.Qc2–/+)) 31...Qd1 32.Kh2? (32.Kg2–+) 32...Qg4 33.Qg2 Qh4 34.Qh3 Qf2 35.Qg2 Qg2 (35...Qe1 36.Kh3–+) 36.Kg2 h5 37.Kf3 g5 38.Bb2 Kh7 39.Bd4 Kg6 40.Kg2 g4 41.Ba1 Kg5 42.Bd4 h4 Black plans g3 43.Kf1 h3 44.Kg1 g3 45.Kh1 (45.Bc3 Nf2 46.Kf1 h2 47.Be1 h1Q 48.Ke2 g2 49.Kd2 g1Q 50.Kc3 Qe1 51.Kb3 Qa1 52.Kc2 Qhd1) 45...Kg4 (45...Nf2 46.Kg1 h2 47.Kg2 h1Q 48.Kg3 Ne4) 46.Kg1 (46.Bb2 Nf2 47.Kg1 h2 48.Kf1 h1Q 49.Ke2 Qd1) 46...Kf3 (47.Kh1 h2 48.Bc3 Nf2#; 46...h2 47.Kg2 Nf2 48.Kf1 h1Q 49.Ke2 Qd1#) 0–1. Szabo – Fischer,A, corr SOK–87–15, 1987.

4.Bd2 Nf6 5.Nf3 Bd6 6.a3 (6.c4 0–0=+) 6...0–0 (6...a5 7.ba5 0–0 8.c4=) 7.Nc3 (7.c4 dc4 8.Bc4 c6=+) 7...c6 (7...a6 8.Be2=+) 8.Be2 Nbd7 (8...b5 9.Nh4=+) 9.Nh4= Ne4 10.Nf5 ef5 11.g3 (11.Ne4 fe4 12.c4 dc4 13.Bc4 Qh4=) 11...Ndf6 (11...Re8 12.0–0=+) 12.0–0 b5 13.a4 (13.Ne4 fe4 (< 13...de4 14.c4+=) 14.a4 a6=+) 13...a6 (13...Nd2 14.Qd2 Bb4 15.Qd3 Bc3 16.Qc3=+) 14.Be1 (14.Na2 ba4 15.Be1 Qd7=) 14...Qc7 15.f3 Nc3=+ 16.Bc3 Rae8 17.Kf2 Re6 18.Bd2 Rfe8 19.Bd3 g6 20.ab5 ab5 21.Kg2 Qe7 22.c3 Nd7 23.Ra7 Bb8 24.Rb7 Qd8 25.Qa1 Nb6 26.Qa6 Nc4 27.Bc4 dc4 28.Qa5 Qc8 29.Qa8 h5 30.Ra1 Qd8 31.Ra6 h4 32.Rb8 Qb8–/+ 33.Qb8 Rb8 34.gh4 Kg7 35.h5 g5 36.Kg3 Kh6 37.h4 Kh5 38.hg5 Kg5 39.e4 Kg6 40.Bf4 Rc8 41.e5–/+ (41...Rce8 42.Ra2–/+). themonkey – neigrok, GameColony.com, 2002.

4.Bd2 Nf6 5.Nf3 Nbd7 6.Be2 (6.c4 dc4 7.Bc4 Bd6+=) 6...Bd6 7.a3 0–0 8.Nc3 (8.0–0 Ne4+=) 8...c6 9.Nh4 Bg6 10.Ng6 hg6 (10...fg6 11.0–0=) 11.g3 (11.0–0 Qc7 12.h3 a5=) 11...e5 12.0–0 ed4 (12...Qe7 13.f4 e4 14.Na4=) 13.ed4 Nh7 (13...Re8 14.Re1=) 14.Re1 (14.Bd3 Re8+=) 14...Qf6= 15.Bg4 (15.Be3 Rae8=) 15...Nb6 16.Be3 (16.Ne2 Rae8=) 16...Nc4 17.Qd3 Ne3 (17...Rfe8 18.Re2=) 18.Qe3 Ng5 (18...Qd8 19.Na4=) 19.f4 Nh7 20.b5 (20.Na4 g5 21.f5 Qh6=) 20...Qd8 (20...Rfe8 21.Qe8 Re8 22.Re8 Nf8 23.Ne2=) 21.bc6 bc6 22.Bf3 (22.Ne2 Nf6 23.Bf3 Re8=) 22...Nf6 (22...Re8 23.Qd3=) 23.Qd3 Rb8 24.a4 (24.Ne2 Re8=) 24...Bb4 (24...Qa5 25.Re3=) 25.Re3 Qd6 (25...c5 26.Nb5 c4 27.Qd1+=) 26.Rb1 (26.Ne2 c5=) 26...a5 27.Rb3 (27.Rbe1 Rfe8=) 27...Rfe8 (27...c5 28.Bd5 Bc3 29.dc5 Qd5 30.Qc3 Rfe8 31.Rb8 Rb8–+) 28.Re5= Bc3 (28...Nd7!? 29.Re2 Nb6=) 29.Qc3+= Rb3 (29...Rb4 30.Re8 Ne8 31.Rb4 ab4 32.Qe3+=) 30.Re8 Ne8 31.cb3 Nc7 (better is 31...Qf6!?+=) 32.Qa5+– Ne6 33.Qb6 (33.Qc3 g5 34.f5 Nc7+–) 33...Qa3+/– 34.Qc6 Qb3 35.Qa8 (better is 35.Qe8!? Kh7 36.Qf7 Nd4 37.Bg4+/– (37.Bd5?! Qd1 38.Kg2 Qe2 39.Kh3 Qh5 40.Kg2 Qe2 41.Kh3 Qh5 42.Kg2 Qe2=)) 35...Kh7+= 36.Bd5 (36.Kg2 Qc2 37.Kh3 Qf5 38.Bg4 Qe4 39.Be6 Qe6 40.g4 f5=) 36...Qd1= 37.Kg2 Nd4 (37...Qe2 38.Kh3 Qh5 39.Kg2 Qe2 40.Kh3 Qh5 41.Kg2 Qe2=) 38.h4 (better is 38.Bf3 Nf3 39.Qf3 Qa4 40.h4+=) 38...f5?? (better is 38...Qd2 39.Kh1 Nf5+=) 39.Qg8 Kh6 40.Qh8 1–0. marekt – EMCSQUARED777, GameColony.com, 2002.

4.Bd2 Nf6 5.Nf3 Ne4 6.Bd3 =+.

4.Bd2 Nf6 5.Nf3 h6 6.a3 (6.c4 Ne4=) 6...Bd6 7.c4 dc4 8.Bc4 0–0 9.Nc3 c6 10.Qe2 Ne4 (10...b5 11.Bb3 a5 12.ba5=) 11.Ne4 Be4 12.Bd3 Bd3 13.Qd3 Nd7 (13...Qf6 14.e4 Qg6 15.0–0=) 14.e4 Be7 (14...Qe7 15.0–0+=) 15.0–0+= Qc7 16.Rac1 Qd8 (16...Qd6 17.Qe3+=) 17.g3 (17.Rfd1 Bd6+=) 17...Bf6 (17...Bd6 18.Rfd1=) 18.Bf4+= White prepares the advance e5 18...a5 (18...Be7 19.Rfd1 Nf6 20.Rb1+=) 19.b5 Rc8 20.bc6 (20.Rfd1 Be7+=) 20...bc6 21.Bd6 (21.Rfd1 Be7+=) 21...Re8 (21...Be7 22.Be7 Qe7 23.Rfd1=) 22.e5+= Be7 23.Be7 Qe7 24.Rc3 Nb6 (24...c5 25.Rfc1+=) 25.Qa6 (25.Rfc1 a4+/–) 25...Nd5+= 26.Rc5 The isolani on c6 becomes a target 26...Ra8 (26...Rb8 27.Ra5 (worse is 27.Qa5 Ra8 28.Qd2 Ra3=) 27...Red8 28.Qd3+/–) 27.Qc6+/– Rac8 (27...Reb8!?+/–) 28.Qc8+– Rc8 29.Rc8 Kh7 30.Rc5 a4 31.Rb1 Qa7 (31...Kg6 32.g4+–) 32.h3 (32.Kg2 Kg6+–) 32...Qa6+/– 33.Rbb5 (33.Ne1+/–) 33...Nc7 (better is 33...Nc3!? 34.Rb2 Qd3+=) 34.Ra5+– (34.Rc7 Qb5 35.Rc3 Qb2=) 34...Qd3 35.Kg2 (35.Rc7 Qf3 36.Raa7 Qd1 37.Kg2 Qd4 38.Rf7 Qe5 39.Ra4 Qd5 40.Kh2 Kg6+–) 35...Nd5 36.Ra4?? (36.Rd5 ed5 37.Ra4 Qb3+–) 36...Qe2?? (better is 36...Ne3 37.fe3 Qe2 38.Kg1 Qe3 39.Kg2 Qe2 40.Kg1 Qf3+=) 37.Rd5+– ed5 38.Ra7 Kg8 39.Ra8 (39.Ra8 Kh7 40.a4+–) 1–0. marekt – victort, GameColony.com, 2002.

4.Nf3 Bb4 5.Bd2 Bd6 6.Be2 Nf6 7.0–0 Nbd7 8.c4 c6 9.cd5 ed5 10.Nc3 Qe7 11.a4 Ne4 12.h3 g5 13.Ne4 de4 14.Nh2 Nf6 15.Ng4 Ng4 16.Bg4 Bg4 17.Qg4 h5 18.Qf5 g4 19.hg4 hg4–+ 20.Qg4 Bh2–/+ 21.Kh1 Bc7 22.Kg1 Rh4 23.Qg8?? Kd7 24.Qa8 Rh1!! 25.Kh1 Qh4 (26.Kg1 Qh2#) 0–1. hansson – SWAT_TEAM, ChessWorld.net, 2004.

4.h4? Bb4–/+ 5.c3 Ba5 6.g4 Bb1 7.Rb1 Bc3 8.Bd2 Bd2 9.Qd2 b6 10.Bb5 c6 11.Bd3 Qd6 12.Nf3 Nd7 13.0–0 Ngf6 14.Nh2 h5 15.g5 Ng4 16.f4 Ke7 17.Be2 g6 18.Rf3 c5 19.Rg3 Nh2 20.Kh2 Rhc8 21.Rbg1 cd4 22.Qd4 Qc5 23.Qa1 Qc3 24.Qf1 Qb2 25.R1g2 Rc1 26.Qf3 Qa1 27.Rf2 Nc5 28.Bf1 Ne4 29.Bg2 Nf2 30.Qf2 Rac8 31.f5 ef5 32.Qf4 R8c2 33.Qb4 Ke8 34.Rf3 Qe5 35.Rf4 Qe3 36.Qb5 Kf8 37.Rf1 Rg2! 38.Kg2 Rc2 (38...Rc2 39.Qe2 Qe2 40.Rf2 Qf2 41.Kh3 Qe3#) 0–1. Georgiev,Pantaley – Andreev,Do (2020), 24th MGU Open, 2011. (=1.d4 d5 2.b4 Bf5 3.e3 e6)

4.a3 Nf6

5.Bd3 a5 A) 6.b5 Ne4 7.Ne2 (7.Nf3 c6 8.Bd2 cb5 9.Nc3 Nc6 10.Nb5 Be7 11.0–0 0–0 12.Nc3; 7.Be4 Be4 8.Nf3 Nd7 9.Nc3 Bd6 10.0–0 0–0 11.Ne4 de4 12.Nd2) 7...Qg5 8.0–0 Bd6 9.f4 Qg6 10.Nbc3 Nd7 11.Be4 de4 12.Ng3; B) 6.Bf5 ef5 7.b5 Be7 8.Nc3 0–0 9.Qf3 Qd6 10.Qf5 Qd7 11.Qd7 Nbd7 12.Nf3.

5.Bd3 Nc6 6.Bb2 A) 6...Qd7 7.Nc3 (7.Nf3 Bd6 8.Nc3 0–0 9.0–0 a6 10.h3 Rfe8 11.Re1 b5 12.e4) 7...Bd6 8.Nf3 0–0 9.0–0 a6 10.h3 Rfe8 11.Re1 b5 12.e4; B) 6...Rc8 7.Nf3 (7.Nc3 Bd6 8.Nf3 0–0 9.0–0 h6 10.h3 Qe7 11.Qe2 a6 12.e4; 7.b5 Na5 8.Nf3 Bd6 9.Nc3 0–0 10.0–0 c5 11.dc5 Rc5 12.Na4; 7.h3 Bd6 8.Nf3 0–0 9.0–0 a6 10.Nbd2 Ne4 11.Ne5 Be5 12.de5; 7.Bf5 ef5 8.Nf3 Bd6 9.Nc3 0–0 10.Qd3 Qd7 11.0–0 h6 12.b5) 7...Bd6 8.Nc3 0–0 9.0–0 a6 10.Nd5 Nd5 11.e4 Be4 12.Be4; C) 6...Qc8 7.Nf3 (7.Nc3 Bd6 8.Nf3 0–0 9.0–0 a6 10.h3 Qd7 11.Qe2 Rfe8 12.e4; 7.b5 Ne7 8.Nf3 Bd3 9.Qd3 a6 10.Nc3 Nf5 11.Ne5 ab5 12.g4) 7...Bd6 8.Nc3 0–0 9.0–0 a6 10.h3 Qd7 11.Qe2 h6 12.e4; D) 6...Rb8 7.Nf3 (7.Nc3 Bd6 8.Nf3 0–0 9.0–0 h6 10.h3 Qe7 11.Qe2 a6 12.e4; 7.b5 Na5 8.Nf3 a6 9.Nc3 ab5 10.Bb5 c6 11.Bd3 Bd6 12.Ne5; 7.h3 Bd6 8.Nf3 0–0 9.0–0 a6 10.Nc3 Ne4 11.Rb1 h6 12.Re1) 7...Bd6 8.Nc3 0–0 9.0–0 a6 10.Qe2 h6 11.Rfe1 Ra8 12.Na4; E) 6...g6 7.Nc3 (7.Nf3 Bd6 8.0–0 0–0 9.Nc3 a6 10.Qe2 Ne4 11.Be4 Be4 12.Ne4; 7.b5 Na5 8.Nf3 Nc4 9.Bc4 dc4 10.Nc3 a6 11.0–0 ab5 12.Ne5) 7...Bd6 8.Nf3 0–0 9.0–0 a6 10.Qe2 Qe7 11.h3 Rfd8 12.e4; F) 6...Bd3 7.cd3 (7.Qd3 Bd6 8.Nf3 a5 9.b5 Ne7 10.0–0 0–0 11.Nbd2 Nf5 12.c4) 7...Bd6 8.Nc3 a5 9.b5 Ne7 10.e4 de4 11.de4 e5 12.Nf3; G) 6...Ne4 7.Nf3 (7.Nd2 Qh4 8.g3 Qf6 9.Ngf3 Bd6 10.0–0 0–0 11.Qe2 Rfe8 12.b5) 7...Bd6 8.0–0 Qf6 9.b5 Na5 10.Ne5 0–0 11.Nd2 Nd2 12.Qd2; H) 6...b6 7.Nf3 (7.Nc3 Bd6 8.b5 Ne7 9.Nf3 0–0 10.0–0 Rc8 11.Re1 c5 12.e4; 7.b5 Na5 8.Nf3 Bd6 9.Nc3 Bd3 10.cd3 0–0 11.0–0 Rc8 12.e4) 7...Bd6 8.b5 Ne7 9.Nc3 0–0 10.0–0 c5 11.dc5 bc5 12.Ne2; I) 6...Bd6 7.Nf3 (7.Nc3 Ne4 8.Nf3 0–0 9.0–0 Qf6 10.g3 Nc3 11.Bc3 Bg4 12.Be2) 7...0–0 8.0–0 h5 9.Qe2 a5 10.b5 Ne7 11.h3 Qd7 12.Nc3.

5.Bd3 Nc6 6.Nc3 A) 6...Bd6 7.Nf3 (7.Bb2 Bd3 8.cd3 0–0 9.Nf3 Qd7 10.0–0 h6 11.e4 de4 12.de4; 7.b5 Ne7 8.Nf3 0–0 9.0–0 Ng6 10.Nd5 Bh2 11.Kh2 Qd5 12.c4; 7.Bd2 0–0 8.Nf3 Qe7 9.0–0 a6 10.Qe2 Ne4 11.h3 h6 12.Rfe1; 7.Bf5 ef5 8.Nf3 0–0 9.0–0 Re8 10.Qd3 Qd7 11.Bb2 g6 12.h3) 7...0–0 8.Bb2 Ne4 9.0–0 a6 10.Be4 de4 11.Nd2 Qg5 12.Nde4; B) 6...a6 7.Bb2 (7.Nf3 Ne4 8.Bb2 Bd6 9.0–0 Qf6 10.Qe2 0–0 11.Rac1 h6 12.Rcd1; 7.Bf5 ef5 8.Qf3 Qd7 9.Nh3 0–0–0 10.0–0 Rg8 11.Nf4 g5 12.Nd3) 7...Bd6 8.Nf3 0–0 9.0–0 Ne4 10.Be4 Be4 11.Ne4 de4 12.Nd2; C) 6...Be7 7.Bb2 (7.Nf3 0–0 8.0–0 Qd6 9.Bd2 a6 10.h3 Ne4 11.Rb1 Bf6 12.Qe2; 7.Bf5 ef5 8.Nf3 0–0 9.0–0 a6 10.Bb2 Qd7 11.h3 Rfe8 12.Ne5; 7.Bd2 0–0 8.Nf3 Qd6 9.b5 Nb8 10.0–0 Nbd7 11.h3 h6 12.Qe2; 7.b5 Na5 8.Nf3 0–0 9.0–0 c6 10.Bf5 ef5 11.Qd3 cb5 12.Qf5) 7...0–0 8.Nf3 Ne4 9.0–0 a6 10.Qe2 Bd6 11.Be4 Be4 12.Ne4; D) 6...h6 7.b5 (7.Nf3 Bd6 8.Bb2 0–0 9.0–0 a6 10.Nd5 Nd5 11.e4 Qf6 12.ef5; 7.Bb2 Bd6 8.Nf3 0–0 9.0–0 a5 10.b5 Ne7 11.Re1 c6 12.bc6; 7.Bf5 ef5 8.b5 Na5 9.Nf3 Bd6 10.Qd3 Qd7 11.Bd2 0–0 12.Nd5) 7...Na5 8.Nf3 Bd6 9.Ne5 0–0 10.0–0 c5 11.Bf5 ef5 12.Qd3; E) 6...Bd3 7.Qd3 (7.cd3 Bd6 8.Nf3 0–0 9.0–0 h6 10.b5 Na5 11.e4 Be7 12.Qa4) 7...Bd6 8.Nf3 0–0 9.0–0 e5 10.Qb5 e4 11.Qb7 Qd7 12.Ne5; F) 6...Ne4 7.Nge2 Qh4 8.0–0 Bd6 9.g3 Qh5 10.f3 Nc3 11.Nc3 Bh3 12.Re1.

5.Bd3 Nc6 6.Nf3 A) 6...h6 7.b5 (7.0–0 Bd6 8.Nc3 0–0 9.Bb2 a5 10.b5 Ne7 11.Re1 c6 12.bc6; 7.Nc3 Bd6 8.0–0 0–0 9.Bb2 a5 10.b5 Ne7 11.Re1 c6 12.bc6; 7.Bb2 Be7 8.Nc3 0–0 9.0–0 a6 10.Bf5 ef5 11.Qd3 Qd7 12.Ne5; 7.Bf5 ef5 8.b5 Na5 9.Qd3 Ne4 10.Nc3 Be7 11.Ne5 Bf6 12.0–0; 7.Bd2 Bd6 8.Nc3 0–0 9.0–0 a6 10.Nh4 Bh7 11.f4 Ne4 12.Nf3) 7...Na5 8.0–0 Bd6 9.Nc3 0–0 10.Ne5 c5 11.Bf5 ef5 12.Qd3; B) 6...Ne4 7.Bb2 (7.0–0 Bd6 8.Bb2 a6 9.Nbd2 Qf6 10.Qe2 0–0 11.c4 a5 12.c5; 7.Bd2 a6 8.Nc3 Bd6 9.0–0 0–0 10.Qe2 Qf6 11.Rad1 h6 12.h3; 7.b5 Na5 8.Bd2 Nc4 9.Bc4 dc4 10.Nc3 Nc3 11.Bc3 Qd5 12.0–0) 7...Bd6 8.0–0 a6 9.Nc3 Qf6 10.Ra2 0–0 11.h3 Ng5 12.Ng5; C) 6...a6 7.0–0 (7.Bb2 Bd6 8.0–0 0–0 9.Qe2 Qe7 10.Nbd2 Ne4 11.c4 Nd2 12.Qd2; 7.Qe2 Bd6 8.0–0 Ne4 9.Bb2 Bg4 10.c4 0–0 11.c5 Be7 12.Nbd2; 7.Nc3 Bd6 8.Bb2 Ne4 9.g3 Qf6 10.0–0 Nc3 11.Bc3 Bg4 12.Be2; 7.Bd2 Bd6 8.Nc3 0–0 9.h4 h6 10.Bf5 ef5 11.0–0 Qd7 12.Qb1; 7.h3 Bd6 8.Nc3 Ne4 9.Bb2 0–0 10.0–0 Qf6 11.Ra2 Ng5 12.Ng5; 7.Bf5 ef5 8.Nc3 Bd6 9.0–0 0–0 10.Qd3 Qd7 11.Bb2 Rfe8 12.h3; 7.c4 dc4 8.Bc4 Bd6 9.Nc3 0–0 10.0–0 Ne4 11.Bb2 Qf6 12.Rc1) 7...Ne4 8.Bb2 Bd6 9.Nbd2 0–0 10.Qe2 Qf6 11.c4 Nd2 12.Qd2; D) 6...Be7 7.Nc3 (7.0–0 Bd6 8.Bb2 0–0 9.Nc3 a6 10.Nd5 Bh2 11.Kh2 Qd5 12.c4; 7.Bb2 0–0 8.Nc3 a6 9.0–0 h6 10.h3 Qd7 11.Qe2 Ne4 12.Rfd1; 7.b5 Na5 8.Nc3 0–0 9.0–0 c6 10.Ne5 cb5 11.Bf5 ef5 12.Qd3; 7.Bd2 Bd6 8.b5 Ne7 9.0–0 0–0 10.Nc3 Qd7 11.Qe2 h5 12.h3; 7.Bf5 ef5 8.Nc3 0–0 9.0–0 a6 10.Bb2 Qd7 11.Ne5 Qe6 12.Nd3; 7.h3 Ne4 8.Bb2 0–0 9.0–0 a6 10.Nbd2 Bd6 11.Qe2 Qf6 12.Rad1; 7.Qe2 0–0 8.Nc3 Ne4 9.Bb2 Bd6 10.0–0 a6 11.Be4 Be4 12.Ne4) 7...a6 8.0–0 0–0 9.Bb2 Qd7 10.h3 h6 11.Qd2 Rfe8 12.Qe2; E) 6...h5 7.b5 (7.Nc3 Bd6 8.b5 Na5 9.Bd2 c6 10.Ne5 Ng4 11.bc6 bc6 12.f4; 7.0–0 Bd6 8.b5 Na5 9.Nc3 0–0 10.h3 Ne4 11.Bb2 Qf6 12.Qe2; 7.Bf5 ef5 8.b5 Na5 9.Qd3 Ne4 10.Nc3 Nc4 11.Ne5 Ne5 12.de5; 7.Bb2 Bd6 8.0–0 0–0 9.Qe2 a5 10.b5 Ne7 11.Nc3 Ng6 12.a4) 7...Na5 8.Bf5 ef5 9.Nc3 Bd6 10.Qd3 Qd7 11.Bd2 0–0 12.Nd5; F) 6...Bd6 7.0–0 (7.Nc3 Ne4 8.Bb2 0–0 9.0–0 Qf6 10.h3 a6 11.Rb1 Qh6 12.Qe2; 7.Bb2 0–0 8.0–0 a5 9.b5 Ne7 10.Nc3 Re8 11.Re1 Ng6 12.Nd5; 7.Bd2 Ne4 8.b5 Ne7 9.Nc3 0–0 10.0–0 Ng6 11.Qe2 Qf6 12.h3; 7.b5 Na5 8.Nc3 0–0 9.Bd2 Ne4 10.Ne4 de4 11.g4 Bg4 12.Be4; 7.h3 Ne4 8.Bb2 0–0 9.0–0 Qf6 10.Nc3 a6 11.Ra2 Ng5 12.Ng5) 7...0–0 8.Nc3 Ne4 9.Bb2 Qf6 10.b5 Na5 11.Qe2 Rfe8 12.Rab1.

5.Bd3 Bd3 6.cd3 A) 6...a5 7.b5 c5 8.Nf3 Nbd7 9.Nc3 Bd6 10.Bb2 0–0 11.0–0 Rc8 12.h3; B) 6...Nbd7 7.Nf3 (7.Nc3 a5 8.b5 Rc8 9.Nf3 Be7 10.Bd2 c5 11.bc6 Rc6 12.0–0) 7...Bd6 8.0–0 0–0 9.Nc3 a5 10.b5 Rc8 11.Bd2 Qe7 12.Qb3; C) 6...Bd6 7.Nc3 (7.Nf3 Nbd7 8.0–0 0–0 9.Nc3 a5 10.b5 Qc8 11.Bd2 c5 12.bc6; 7.Nh3 Nc6 8.Nc3 0–0 9.0–0 Qd7 10.Qf3 Rfe8 11.Bb2 Ne7 12.Nf4) 7...0–0 8.Nf3 Nbd7 9.0–0 c6 10.e4 e5 11.de5 Ne5 12.Ne5.

5.Bd3 Bd3 6.Qd3 a5 7.b5 (7.ba5 Nc6 8.Nf3 Bd6 9.0–0 0–0 10.Nc3 Qe7 11.Rb1 Rfb8 12.a6) 7...c5 8.Nc3 Nbd7 9.Nf3 Bd6 10.0–0 0–0 11.Bd2 Qb6 12.a4.

5.Bd3 Bd3 6.Qd3 c6 7.Nd2 (7.Nf3 Nbd7 8.0–0 a5 9.b5 cb5 10.Qb5 Bd6 11.Nc3 0–0 12.Qb7; 7.Nc3 Bd6 8.Nf3 0–0 9.0–0 a5 10.b5 cb5 11.Nb5 Nc6 12.Rb1; 7.Bd2 Nbd7 8.Nf3 a5 9.b5 Qb6 10.Nc3 Bd6 11.0–0 0–0 12.a4) 7...Nbd7 (7...Bd6 8.Ngf3 Nbd7 9.0–0 a5 10.c4 ab4 11.Bb2 0–0 12.ab4) 8.f4 (8.Ngf3 a5 9.b5 cb5 10.Qb5 (10.0–0 Bd6 11.Qb5 Qb6 12.Qd3) 10...Rc8+= (10...Qb6 11.Qb6 Nb6 12.Rb1) 11.c4 Qc7 12.0–0) 8...a5 9.b5 c5 (9...cb5 10.Ngf3 Bd6 11.0–0 Qb6 12.Rb1) 10.c4 (10.Nh3 c4 11.Qe2 a4 12.0–0) 10...cd4 (10...Rc8!?–/+ 11.Bb2 Nb6 12.Ne2) 11.ed4+= dc4 12.Nc4 Nb6 (12...Rc8!? 13.Ne5 Nd5+=) 13.Nb6= Qb6 14.h3 (14.Nf3 Be7=) 14...Rd8 (14...Bd6 15.Ne2+=) 15.Ne2+= Be7 16.Rb1 Nd5 17.g4 (17.0–0 0–0+=) 17...h5 18.g5 g6 19.h4 Bf8 20.0–0 Bg7 21.Qe4 0–0 22.Bd2 (22.a4 Rfe8 23.Kg2 Qc7–/+) 22...Ne7 (22...Rc8 23.Rfc1–+) 23.Be3 Nf5 24.Bf2 Qc7 (24...Bd4?! 25.Nd4 Rd4 26.Qe5+=) 25.b6 Qd7 26.Rfd1 Ne7 (26...Nd6 27.Qd3–/+) 27.Be1 (27.Rdc1 Nd5+=) 27...Qd5 28.Qc2 (28.Qd5 Rd5 29.Bf2 Rd6–/+) 28...Nc6 (better is 28...Nf5 29.Bf2 Qf3–+) 29.Nc3? (better is 29.Bf2–/+) 29...Bd4–+ 30.Kh2 Qc5 31.Rb5 (31.Qb2 e5 32.Ne4 Qc4–+ (32...Bb2?! 33.Nc5 Rd1 34.Rd1–/+)) 31...Qe7 (31...Qa3!? 32.Rdb1–+) 32.Ne4 (32.a4 Qa3 33.Rb3 Qc5–+) 32...Qa3 33.Rd3 (33.Rb3 Qa4–+) 33...Qe7 (33...Bg1! 34.Kg1 Qd3 35.Qd3 Rd3 36.Ba5–+) 34.Ng3? (better is 34.Bc3–+) 34...a4! 35.f5 (35.Qa4 Bg1 Double attack) 35...ef5 36.Rf5 (36.Bd2–+) 36...Qe1 37.Rf1 Qe5 (37...Qa5 38.Rdd1–+) 38.Rdf3 (38.Ra3 Be3 39.Re1 Qa5–+) 38...Ne7 (38...Bb6 39.Qb1 Qc7 40.Kh1–+) 39.Kg2 (39.Qa4 Nd5 40.Qa7 Ra8 41.Rf7 Rfb8–+ (41...Ra7 42.Rf8 Kh7 43.R1f7 Qg7 44.Rg7 Kg7 45.ba7 Ba7 46.Rd8+–; worse is 41...Rf7 42.Qa8 Kg7 43.Rf7 Kf7 44.Qb7 Ke6 45.Qc8 Ke7 46.Qb7 Kd6 47.Qf7 Bg1 48.Kg1 Qg3 49.Kf1 Qd3 50.Ke1 Qe4 51.Kd1 Nb6 52.Qf8 Kd5 53.Qf7 Kc5 54.Qf8 Kb5 55.Qb8–+)) 39...Nd5 40.Qg6 (40.Qe4–+) 40...fg6 0–1. Hedlerfog,Robert – Percivaldi,Martin (1835), Copenhagen DEN, Politiken Cup, 2011. (=1.d4 d5 2.b4 Bf5 3.e3 e6)

5.Bd3 Bd3 6.Qd3 Bd6 7.Nf3 (7.Nc3 Nc6 8.Nf3 0–0 9.0–0 e5 10.Qb5 e4 11.Qb7 Qd7 12.Ne5) 7...a5 8.b5 Nbd7 9.Nc3 0–0 10.0–0 e5 11.e4 ed4 12.Nd5.

5.Bd3 Bd6 6.Bb2 A) 6...0–0 7.Nf3 (7.Nc3 a5 8.b5 Nbd7 9.Nf3 Ne4 10.0–0 Qe7 11.Be4 de4 12.Nd2) 7...a5 8.b5 h6 9.0–0 Nbd7 10.Nbd2 Ne4 11.Qe2 Qf6 12.c4; B) 6...Qe7 7.Ne2 (7.Nc3 0–0 8.Nge2 Nbd7 9.0–0 a5 10.b5 Ne4 11.Nf4 Nc3 12.Bc3; 7.Nf3 a5 8.b5 Nbd7 9.0–0 0–0 10.Qe2 Bg4 11.Nbd2 e5 12.e4; 7.Nd2 0–0 8.Ngf3 a5 9.0–0 ab4 10.ab4 Nc6 11.b5 Nb4 12.Bf5; 7.Bf5 ef5 8.Nc3 0–0 9.Nf3 a5 10.0–0 g6 11.b5 Nbd7 12.Qe2) 7...0–0 8.Nbc3 Nbd7 9.0–0 a5 10.b5 Ne4 11.Nf4 Nc3 12.Bc3; C) 6...Nc6 7.Nf3 (7.Nc3 0–0 8.Nf3 Qd7 9.0–0 a6 10.h3 h6 11.Qe2 b5 12.Rfd1; 7.Bf5 ef5 8.Nf3 0–0 9.0–0 Qd7 10.Nc3 Rfe8 11.Qd3 h6 12.h3; 7.Nd2 0–0 8.Ngf3 Qd7 9.0–0 Bd3 10.cd3 a5 11.Ne5 Qe7 12.b5) 7...a5 8.b5 Ne7 9.Nc3 0–0 10.0–0 h6 11.Re1 c6 12.bc6; D) 6...Bd3 7.cd3 (7.Qd3 a5 8.ba5 Ra5 9.Nf3 Nc6 10.0–0 0–0 11.Nbd2 Qe7 12.c4) 7...a5 8.b5 c6 9.Nc3 Qb6 10.e4 Be7 11.Nf3 cb5 12.0–0; E) 6...a5 7.b5 Nbd7 8.Nf3 0–0 9.0–0 c6 10.bc6 bc6 11.Nc3 Rb8 12.Rb1; F) 6...Qd7 7.Nf3 (7.Nc3 Nc6 8.Nf3 0–0 9.0–0 a6 10.h3 Rfe8 11.Re1 b5 12.Rb1) 7...Nc6 8.Nc3 0–0 9.0–0 a6 10.h3 Rfe8 11.Re1 h6 12.e4; G) 6...h5 7.Nc3 (7.Nf3 a5 8.b5 Ne4 9.Nbd2 Nd7 10.0–0 0–0 11.Ne5 h4 12.h3; 7.Bf5 ef5 8.Nf3 0–0 9.Nc3 Nc6 10.0–0 Qd7 11.Qd3 Rfe8 12.Rfe1; 7.Nd2 a5 8.Bf5 ef5 9.Ngf3 0–0 10.c4 ab4 11.c5 Be7 12.ab4) 7...a5 8.b5 Nbd7 9.Nf3 Ne4 10.0–0 0–0 11.h3 Qf6 12.Qe2; H) 6...Nbd7 7.Nf3 (7.Nc3 a5 8.b5 0–0 9.Nf3 Qe7 10.0–0 Ne4 11.Be4 de4 12.Nd2) 7...a5 8.b5 0–0 9.0–0 h6 10.Nbd2 c6 11.bc6 bc6 12.Rb1.

5.Bd3 Bd6 6.Nc3 A) 6...0–0 7.Nf3 (7.Bb2 a5 8.b5 Ne4 9.Nge2 Nd7 10.0–0 Qe7 11.Nf4 Nc3 12.Bc3) 7...a5 8.b5 Ne4 9.Bb2 Nd7 10.0–0 Qe7 11.Be4 de4 12.Nd2; B) 6...Ne4 7.Bd2 (7.Nge2 a5 8.Be4 de4 9.ba5 Nc6 10.Ng3 Qh4 11.Qh5 Qh5 12.Nh5; 7.Be4 de4 8.Nge2 a5 9.ba5 Nc6 10.Ng3 Bg3 11.fg3 Ra5 12.0–0; 7.Bb2 a5 8.b5 Nd7 9.Nf3 0–0 10.0–0 Qe7 11.Be4 de4 12.Nd2) 7...Nc6 8.b5 Na5 9.Nf3 Nd2 10.Nd2 Bd3 11.cd3 a6 12.0–0; C) 6...Qe7 7.Nf3 (7.Bf5 ef5 8.Qd3 g6 9.Nf3 0–0 10.0–0 Nbd7 11.Bd2 c6 12.b5; 7.Bb2 0–0 8.Nge2 Nc6 9.0–0 Ng4 10.g3 Qg5 11.h3 Nf6 12.Nf4; 7.h3 a5 8.b5 Ne4 9.Nge2 0–0 10.Be4 de4 11.Ng3 Qh4 12.Nf5; 7.Nh3 a5 8.b5 Bg4 9.Qd2 Nbd7 10.0–0 0–0 11.Nf4 g5 12.Nfe2) 7...0–0 8.0–0 a5 9.b5 Ne4 10.Be4 de4 11.Nd2 Nd7 12.Nde4; D) 6...g6 7.Nf3 (7.Qe2 a5 8.b5 Ne4 9.Be4 Be4 10.f3 Qh4 11.Kd2 f5 12.Nh3; 7.Qd2 Nc6 8.Nf3 Ne4 9.Ne4 de4 10.g4 Bg4 11.Be4 Qf6 12.Qe2; 7.h3 Nbd7 8.Nf3 0–0 9.0–0 c6 10.Bd2 Ne4 11.b5 Qf6 12.bc6; 7.Bb2 a5 8.b5 0–0 9.Nf3 Qe7 10.0–0 Nbd7 11.h3 Ne4 12.Be4; 7.Nge2 0–0 8.Ng3 Bd3 9.cd3 a5 10.b5 c5 11.dc5 Bc5 12.0–0; 7.Rb1 Nc6 8.Nf3 0–0 9.0–0 Qe7 10.b5 Na5 11.Bd2 Ba3 12.Nd5; 7.Nh3 Nc6 8.Bf5 ef5 9.0–0 0–0 10.Qd3 Qd7 11.Nf4 Rfe8 12.Bd2; 7.Bd2 a5 8.Nf3 ab4 9.ab4 Ra1 10.Qa1 Bd3 11.cd3 Nc6 12.Nb5) 7...a5 8.b5 0–0 9.Bb2 Nbd7 10.0–0 Ne4 11.Qe2 Re8 12.a4; E) 6...Nbd7 7.Bf5 (7.Nf3 a5 8.b5 0–0 9.0–0 Ne4 10.Bb2 Qe7 11.a4 Bb4 12.Be4; 7.Bd2 a5 8.Nf3 ab4 9.ab4 Bb4 10.0–0 Ra1 11.Qa1 0–0 12.Rb1; 7.Nb5 Bd3 8.Nd6 cd6 9.cd3 Rc8 10.Nf3 0–0 11.Bb2 Qb6 12.0–0; 7.Nge2 0–0 8.0–0 a5 9.b5 Ne4 10.Bb2 Qh4 11.g3 Qg5 12.Nf4) 7...ef5 8.Qf3 Ne4 9.Nd5 c6 10.Nf4 a5 11.Nd3 ab4 12.Qf5.

5.Bd3 Bd6 6.Nf3 A) 6...0–0 7.Nc3 (7.0–0 a5 8.b5 Ne4 9.Bb2 Nd7 10.Nbd2 Qe7 11.Ne5 Ne5 12.de5; 7.Bb2 a5 8.b5 Nbd7 9.0–0 Qe7 10.Qe2 h6 11.Nc3 Ne4 12.Be4; 7.Bf5 ef5 8.Nc3 a5 9.b5 Nbd7 10.Qd3 g6 11.0–0 Re8 12.h3; 7.Nbd2 a5 8.b5 c6 9.Bf5 ef5 10.Qe2 Nbd7 11.0–0 Qb6 12.c4) 7...a5 8.b5 Ne4 9.Bb2 Nd7 10.0–0 Qe7 11.Be4 de4 12.Nd2; B) 6...Ne4 7.Bd2 (7.0–0 a5 8.b5 0–0 9.Bb2 Nd7 10.Nbd2 Qf6 11.Qe2 h6 12.c4; 7.Bb2 a5 8.b5 Nd7 9.0–0 0–0 10.Nbd2 Qe7 11.Ne5 Rfd8 12.f4) 7...0–0 8.Nc3 a5 9.ba5 Nc6 10.0–0 Ra5 11.Qb1 b6 12.Nb5; C) 6...Nbd7 7.Nc3 (7.Bb2 0–0 8.0–0 a5 9.b5 h6 10.Nc3 Ne4 11.Qe2 Qe7 12.Be4; 7.0–0 a5 8.b5 Ne4 9.Bb2 Qf6 10.Nbd2 0–0 11.Qe2 Rfd8 12.c4; 7.Bf5 ef5 8.Nc3 0–0 9.Qd3 g6 10.0–0 Qe7 11.Nb5 Nb6 12.Rb1; 7.Bd2 a5 8.Nc3 ab4 9.ab4 Bb4 10.0–0 0–0 11.Ra8 Qa8 12.Nb5) 7...0–0 8.Nb5 Ne4 9.0–0 Qe7 10.Qe2 a5 11.Bd2 Bg4 12.Nd6; D) 6...a5 7.b5 (7.Bf5 ef5 8.b5 Ne4 9.Bb2 Nd7 10.Nc3 Ndf6 11.Ne4 Ne4 12.0–0; 7.ba5 0–0 8.Nc3 Ra5 9.Rb1 Ne4 10.Nb5 Rb5 11.Rb5 Nc3 12.Qd2) 7...0–0 8.Bf5 ef5 9.Nc3 Nbd7 10.0–0 g6 11.Qd3 Re8 12.h3.

5.Bd3 Nbd7 6.Nc3+= A) 6...a5 7.b5 (7.ba5 Ra5 8.Nf3 Ne4 9.Bb2 Bd6 10.0–0 0–0 11.Nb5 Be7 12.Nc3) 7...Ne4 8.Be4 Be4 9.Ne4 de4 10.Ne2 Qg5 11.0–0 Qb5 12.Nc3; B) 6...Bd6 7.Nf3 (7.Nge2 0–0 8.0–0 a5 9.b5 Ne4 10.Bb2 Qh4 11.g3 Qh6 12.Nf4; 7.Bf5 ef5 8.Nf3 0–0 9.Qd3 g6 10.0–0 c6 11.Bd2 Re8 12.b5; 7.Bd2 a5 8.Nf3 c6 9.b5 0–0 10.bc6 bc6 11.0–0 Rb8 12.Qe2; 7.Nb5 a5 8.Nd6 cd6 9.Bd2 ab4 10.Bb4 Qc7 11.Nf3 0–0 12.0–0) 7...a5 8.b5 0–0 9.0–0 Qe7 10.Nd5 Nd5 11.e4 Be4 12.Be4.

5.Bd3 Nbd7 6.Ne2 A) 6...a5 7.ba5 Be7 8.a6 Qc8 9.Nbc3 Bd3 10.ab7 Qb7 11.cd3 0–0 12.0–0; B) 6...c6 7.0–0 (7.Nbc3 Bd6 8.Bb2 a5 9.b5 0–0 10.0–0 Qc7 11.bc6 bc6 12.g3; 7.Bf5 ef5 8.0–0 Bd6 9.Nbc3 0–0 10.Qd3 Qc7 11.Qf5 Bh2 12.Kh1 g6; 7.Bd2 Bd6 8.Nbc3 0–0 9.0–0 a5 10.b5 c5 11.Bf5 ef5 12.Ng3; 7.Nd2 Bd6 8.0–0 0–0 9.Nf3 Ne4 10.Bd2 Bg4 11.Ng3 Ndf6 12.c4) 7...a5 8.ba5 Bd3 9.cd3 Bd6 10.Bd2 0–0 11.g3 e5 12.Qb3; C) 6...Bd3 7.cd3 Bd6 8.0–0 0–0 9.Nbc3 a5 10.b5 Ng4 11.Nf4 Qg5 12.Qf3; D) 6...Bd6 7.Nbc3 (7.0–0 a5 8.ba5 Bd3 9.cd3 0–0 10.Qb3 Ra5 11.Nbc3 Nb6 12.e4; 7.Bd2 a5 8.Nbc3 ab4 9.ab4 Bb4 10.Bf5 ef5 11.Nf4 c6 12.0–0) 7...0–0 8.0–0 c6 9.Bb2 a5 10.b5 Qc7 11.Ng3 Bd3 12.cd3.

5.Bd3 Nbd7 6.Bf5 ef5 7.Nf3 (7.Nc3 a5 8.b5 Bd6 9.Qf3 Nb6 10.Qf5 g6 11.Qd3 0–0 12.Nf3; 7.Qf3 a5 8.b5 Be7 9.Nc3 c6 10.Qf5 0–0 11.Nf3 g6 12.Qd3) 7...a5 8.ba5 Bd6 9.Qd3 0–0 10.Nc3 Ra5 11.Qf5 g6 12.Qd3.

5.Bd3 Ne4 A) 6.Ne2 A1) 6...Bd6 7.0–0 (7.Nbc3 0–0 8.Be4 de4 9.Ng3 Qh4 10.Qh5 Qh5 11.Nh5 a5 12.b5) 7...Qg5 8.f4 Qg6 9.Nbc3 0–0 10.Be4 de4 11.Ng3 Nd7 12.Nf5; A2) 6...Qg5 7.0–0 Bd6 8.Ng3 Bg3 9.hg3 0–0 10.Be4 de4 11.Nc3 Nc6 12.Qe2; A3) 6...a5 7.f3 (7.ba5 Nc6 8.0–0 Be7 9.f3 Nd6 10.a6 Ra7 11.ab7 Rb7 12.Nbc3; 7.b5 Bd6 8.0–0 Qg5 9.Nd2 Nd7 10.f4 Qh5 11.Qe1 Ndf6 12.Ne4) 7...Nf6 8.b5 Nbd7 9.Nbc3 Bd3 10.cd3 Bd6 11.e4 de4 12.de4; B) 6.Be4 Be4 (6...de4 7.Ne2 a5 8.b5 Bd6 9.Nd2 0–0 10.0–0 Nd7 11.Ng3 Qh4 12.Nc4) 7.Nf3 a5 8.ba5 Nc6 9.Nc3 Bf5 10.0–0 Be7 11.Rb1 Na5 12.Ne5.

5.Nf3 Bd6 6.Bb2 Nbd7 7.Nbd2 c6 8.c4 0–0 9.Be2 Ne4 10.0–0 Qe7 11.Rc1 Rac8 12.Ne5 f6 13.Nd7 Qd7 14.f4 a6 15.Nf3 Qe8 16.Nh4 Bg6 17.Ng6 hg6 (17...Qg6!? 18.Bh5 Qh6=) 18.Bd3 f5 19.Be4 fe4 20.Qg4 Rf5 21.c5 Bc7 22.g3 Qf7 23.h4 Rf8 24.a4 Ra8 25.Bc3 Kh7 26.Kg2 Kg8 27.Rb1 Qe8 28.Qe2 b6 29.cb6 Bb6 30.Rfc1 Rf7 31.a5 Bd8 32.Bd2 Rb7 33.Rc5 Be7 34.Rc2 Bd6 35.Qf1 Kf7 36.Rbc1 Bb4 37.Rb1 Rab8 38.Qa6 Rb5 39.Bb4 Rb4 40.Rb4 Rb4 41.Rc6 Rb2 42.Kh3 Rb8 (better is 42...Kf6+–) 43.Rc7 Kg8 44.Qa7 Qf8 (44...g5 45.Rg7 Kf8 46.Rg5 Qb5+–) 45.Rg7!! Kh8 (45...Qg7 46.Qb8 Deflection (46.Qb8 Overloading)) 46.Rf7 Qg8 47.Qe7 (47.Qe7 Qf7 48.Qf7+–) 1–0. Jaramillo,Carlos O (1930) – Jaramillo,Daniel A (1690), Ibague COL Men Ch, 2013.

5.Nf3 Nbd7 6.c4 dc4 7.Bc4 Bd6 8.Bb2 (8.0–0 0–0=) 8...c6 (8...Nb6 9.Bd3=) 9.Bd3 Bd3 10.Qd3 Qc7 11.h3 (11.e4 Bf4=) 11...e5 (11...a5 12.e4 Be7 13.ba5 Ra5 14.0–0=) 12.de5 (12.Nbd2 0–0=) 12...Ne5 13.Ne5 Be5 14.Be5 Qe5 15.Qc3 Qd5 (15...Qe6 16.0–0=) 16.0–0 Rd8 17.Qb2 0–0 18.Nc3 Qe5 19.Qc2 Nd5 20.Ne2 Rfe8 21.Rad1 h6 22.Nd4 Rd6 23.Nf3 Qe7 24.Qc5 Rdd8 25.Qe7 Re7 26.Rd4 Rdd7 (26...f5 27.Rfd1=) 27.Rfd1 Nb6 28.Rc1 (28.Kf1 Rd4 29.Rd4 Rd7+=) 28...Rd4 (28...Rd5 29.Kf1=) 29.Nd4 a6 30.Kf1 g6 31.Ke2 Kg7 32.Nb3 (32.Kd3 Nd5=) 32...Nd5 33.Nc5 f5 34.Kf3 Kf6 35.Rc4 (35.Nb7 Rb7 36.Rc6 Kf7 37.Ra6 Nc3+=) 35...Rf7 (35...g5 36.g4 Nb6 37.Rd4+=) 36.g3 (36.Na6 ba6 37.Rc6 Ke5 38.Ra6 Rf6 39.Rf6 Nf6+=) 36...Ke5= 37.Ke2 Kd6 38.e4 (38.f3 g5+=) 38...fe4 39.Ne4 Kc7 40.f3 g5 41.Kf2 Nb6 42.Rd4 Nd5 43.Nc5 Kb6 (43...b6 44.Ne4=) 44.Nd3 Re7 45.a4 Nc3 46.a5 Kc7 47.Nc5 Nd5 (47...b6 48.ab6 (worse is 48.Na6 Kb7–/+) 48...Kb6 49.Ne4=) 48.h4 Kd6 (48...b6 49.ab6 Kb6 50.hg5 hg5 51.Ne4=) 49.hg5 hg5 50.f4 gf4 51.gf4 Rf7 52.Kf3 Rg7 53.Na4 (53.Ke4 Re7 54.Kf5 Rf7 55.Kg5 Rg7 56.Kh6 Rf7+/–) 53...Kc7 (53...Rg1=) 54.Nb6 (better is 54.Ke4!?+=) 54...Nb6–/+ 55.ab6 Kb6 56.f5 c5 57.bc5 Kc5 58.Ra4 Kb5 (58...Kd5 59.Kf4+=) 59.Ra1+= a5 60.Kf4 a4 61.f6 Rf7 62.Kf5 Ka5 63.Ke6 Rf8 64.Ke7 Rh8 (64...Rc8 65.f7+/–) 65.Rg1 Rh4 (65...Kb4 66.f7 a3 67.Rg8+/–) 66.Rf1 Rh7 67.f7 b5 (67...a3 68.Kd6 Rf7 69.Rf7+/–) 68.Kd6+– Rf7 (68...Rh6 69.Kc5 Rh5 70.Kd4 Rh4 71.Kd3 Rh3 72.Kc2 Rh8+–) 69.Rf7+/– Kb4 70.Rf4 Kb3 71.Kc5 (71.Rf3 Kb4 72.Kc6=) 71...a3= 72.Kb5 Kb2?? (better is 72...a2 73.Rf1 Kb2=) 73.Kb4 a2 74.Rf2 Kb1 75.Kb3 a1N 76.Kb4 (better is 76.Kc3+–) 76...Nc2+/– 77.Kc3 (77.Kc3 Ne3 78.Rf3 Nd1 79.Kd2+/–) 1–0. Jaszczuk,Juliusz – Berlacki,Piotr, Wch Seniors Bad Woerishofen, 1991.

3.Nf3 e6

4.a3 Nf6 5.e3 Be7 6.Nbd2 0–0 7.c4 dc4 8.Bc4 Nbd7 9.0–0 Ne4 10.Bb2 Nb6 11.Be2 Nd5 12.Ne4 Be4 13.Nd2 Bg6 14.Bf3 c6 15.Nc4 Nf6 16.Rc1 Nd7 17.Na5 Rb8 18.Qd2 Nf6 19.b5 cb5 20.Nb7 Qb6 21.Bc3?? (better is 21.Nc5=) 21...Ba3–/+ (21...Rb7 22.Ba5 Qd6 23.Bb7 Qa3 24.Ra1+/–) 22.Ba5 Bc1 23.Rc1 Qa6 24.Nc5 Qd6 25.Nb7 Rb7 26.Bb7 Qb8 27.Ba6 Nd5 28.Rc5 b4 29.Bc4 Nc3 30.Bd3 Bd3 31.Qd3 Nd5 32.g3 Rc8 33.Rc8 (better is 33.e4 Nf6 34.Bb4 Rc5 35.dc5=) 33...Qc8–/+ 34.e4 Qc3 35.Qc3 Nc3 (worse is 35...bc3 36.ed5 c2 37.Bd2 ed5 38.Kf1+–) 36.f3?? (better is 36.Bb4 Ne4 37.Kf1–+) 36...Na2 (better is 36...Ne2 37.Kf2 b3 38.Ke2–+) 37.d5 ed5 38.ed5 (38.Bc7 Nc3 39.Bd6–+) 38...b3 39.d6 b2 40.d7 b1Q 41.Kf2 Qb2 42.Kg1 Qd4 (42...Qd4 43.Kg2 Qd7–+) 0–1. Tkachev,Ivan (1950) – Senkevich,Konstantin (2135), St Petersburg Mai op, 2008. (=1.d4 d5 2.b4 Bf5 3.Nf3 e6)

4.b5 c5 5.e3 cd4 6.Nd4= Bg6 7.Bd3 Nd7 8.h4 (8.Bb2!?=) 8...Rc8 9.h5 Bd3 10.cd3 Nh6 11.Bb2 Bb4 12.Kf1 0–0 13.Qa4 Bd6 14.Nf3 Nc5 15.Qd1 Qa5 16.a4 a6 17.Bc3 Qb6 18.Rh4 Nd7 19.Qb3 ab5 (19...Nf5 20.Rg4 Nc5 21.Qc2+=) 20.Qb5+= Qb5 (20...Qc7 21.a5+=) 21.ab5= Rc5 22.Bb4 Rc1 23.Ke2 Nf5 24.Bd2 Nh4 25.Bc1 Nf3 (worse is 25...Ng2 26.Kf1 Nc5 27.Ra3+/–) 26.Kf3 Rc8 27.Bd2 f5 28.Ra7 Rb8 29.Bc3 e5 30.g4 Bc5 31.Ra2 d4 32.Bd2 fg4 33.Kg4 Rf8 34.ed4 Bd4 35.Be3 Nf6 36.Kh4 Nd5 37.Bd4 ed4 (37...Rf4 38.Kg3 Rd4 39.Ra8 Kf7 40.Ra7+=) 38.Re2 Rf3 39.Re8 Kf7 40.Rb8 b6 41.Rb7 Ke6 42.Rg7 Rd3 43.Rg3 (43.Rh7!? Rd1 44.Na3–/+) 43...Rd1–+ 44.Na3 Nf6 45.Nc4 Rh1 46.Rh3 Rh3 47.Kh3 Nd7 48.Kg4 Ne5 (48...Ne5 49.Ne5 Ke5–/+) 0–1. Kretschmer,Karl – Gonschior,Manfred, Germany ch–23 prel–1, 1992. (=1.d4 d5 2.b4 Bf5 3.Nf3 e6)

4.c3 Bd6 5.e3 Nf6 6.Bd3 0–0 7.Qc2 Bd3 8.Qd3 Nbd7 9.0–0 Re8 10.Nbd2 e5 11.de5 Ne5 12.Ne5 Re5 13.Nf3 Rh5 14.h3 Ne4 15.Bd2 (15.Qd4 Qe7=+) 15...Qf6–/+ 16.Rad1 Rh3 17.gh3?? (17.Qd5 Re8 18.gh3 Qf3 19.Qb7 Qh3 20.f4–+) 17...Qf3–+ 18.Be1 (18.Qd5 c6 19.Qe4 Qe4 20.Bc1–+) 18...Ng5 19.e4 Nh3 0–1. carlosfandangos – marekt, ChessWorld.net, 2007.

4.Bd2 Qd7 5.a4 (5.g4 Be4+=) 5...b6 (5...Nf6!?+=) 6.Ne5 White threatens to win material: Ne5xd7 6...Qd8?? (6...Qd6 7.g4 Be4 8.f3=) 7.e3?? White has let it slip away (better is 7.e4 would have given White a clear advantage 7...Be4 8.Bb5 c6 9.Nc6 Nc6 10.Bc6 Ke7 11.Ba8 Qa8 12.0–0+–) 7...a6 Covers b5 (7...Nd7 8.Bb5 Ngf6 9.g4+–) 8.b5 (8.Bd3 Bd3 9.cd3 Nh6=) 8...f6 9.g4 (9.e4 de4 10.Nc4 ab5–/+) 9...fe5 (9...Be4!? is an interesting idea 10.Nf3 ab5 11.Bb5 c6=) 10.gf5= ef5 11.de5 ab5 12.Bb5 c6 Black threatens to win material: c6xb5 13.Bd3 g6 Prevents intrusion on f5 14.Bc3 Bg7 15.Qd2 (15.0–0 Qg5 16.Kh1 Qe7=) 15...Qh4 The isolani on a4 becomes a target (15...Ne7 16.h4=) 16.e6 A strong pawn (16.a5 ba5 17.Bd4 Nh6=) 16...Bc3 17.Qc3 Qf6 18.Qf6 (18.h4 Ke7=) 18...Nf6 19.f3 Controls e4+g4 (19.Nc3!?=) 19...Ke7–/+ 20.Nd2 Ke6 21.Nb3 Re8 22.Kf2 Re7 23.Nd4 Kd6 (23...Kf7 24.h4+=) 24.Rhb1 (24.Bf5 Rea7 25.Bd3 Ra4–/+) 24...Nbd7 (24...Kc7 25.Ra3–/+) 25.Nb3 (25.Bf5!? gf5 26.Nf5 Ke6 27.Ne7 Ke7 28.Ra2+=) 25...Ne5 26.Be2 Rea7 27.f4? (better is 27.a5!? ba5 28.Ra4–/+) 27...Ned7 (27...Neg4 keeps an even firmer grip 28.Kf3 Re7 29.Nd4–+) 28.Kf3 (28.a5 ba5 29.Nd4 Ne4 30.Ke1 a4–+) 28...Ra4 29.Ra4 Ra4 30.h4 (30.Rb2 b5–+) 30...Ng4 31.h5 (31.Nd4 Ra3 32.Rb3 Rb3 33.cb3 Ndf6–+) 31...Re4 32.hg6 (32.Bd3 otherwise it's curtains at once 32...Re3 33.Kg2–+) 32...Re3 33.Kg2 Re2 34.Kg1 Re7 (better is 34...hg6 and Black has prevailed 35.c3–+) 35.gh7 Rh7 0–1. Teuber,Alfons – Balduan,Karl Heinz, Leverkusen op, 2001. (=1.d4 d5 2.b4 Bf5 3.Nf3 e6)

4.Bd2 Nf6 5.h3 +=.

4.e3 Bb4–/+ 5.c3 Bd6 6.c4 Nf6 7.c5 (7.c5 Be7 8.Ne5–/+). composite – Ogopogoman, ChessWorld.net, 2011.

4.g3 Bb4–/+ 5.Bd2 Nc6 6.c3 Ba5 (6...Be7 7.Bg2–+) 7.Bg2 Nf6 8.0–0 Ne4 9.e3 (9.Qb3 Rb8–/+) 9...0–0 (9...Nd6 10.Qe2–+) 10.Be1 (10.Nh4 Qf6–/+) 10...h6 11.Qc1 Ne7 12.Qb2 b6 13.Nfd2 Nd2 14.Bd2–/+ c5 15.dc5 bc5–+ 16.Qb5 c4 17.Qb2 Rb8 18.Qc1 Bd3 19.Re1 Nc6 20.e4 de4 21.Be4 Ne7 22.Na3 a6 23.Re3 Ng6 24.Bd3–/+ cd3 25.Nc4 Bc7 26.Rb1? Qd5–+ 27.Rb8? Rb8 28.Nb2 Ne5 29.Qf1 Nf3 30.Kg2 Nd2 31.Kg1 0–1. Nexxus6 – khani9, ChessWorld.net, 2007.

3.Nf3 Nf6

4.e3 e6 5.c3 Bd6 6.Bb5 c6 7.Bd3 A) 7...0–0 8.0–0 (8.Bf5 ef5 9.Qd3 a5 10.b5 cb5 11.Qb5 Qc7 12.0–0 Nbd7 13.a4) 8...a5 9.Ba3 Ne4 10.Be4 Be4 11.Qe2 Bf3 12.Qf3 Qe7 13.Nd2; B) 7...Nbd7 8.Bf5 (8.0–0 0–0 9.Bf5 ef5 10.Qb3 Ne4 11.Nbd2 Ndf6 12.c4 Qe7 13.c5) 8...ef5 9.0–0 0–0 10.Qd3 Ne4 11.Nbd2 Ndf6 12.Ba3 a5 13.g3; C) 7...a5 8.Bf5 (8.0–0 0–0 9.Ba3 Nbd7 10.Bf5 ef5 11.b5 Ba3 12.Na3 Ne4 13.Qd3; 8.b5 0–0 9.0–0 cb5 10.Bf5 ef5 11.Qd3 Ne4 12.Qb5 Qd7 13.Qd7; 8.Ba3 Ne4 9.0–0 0–0 10.Be4 Be4 11.Qe2 Bf3 12.Qf3 Qe7 13.Nd2; 8.ba5 Qa5 9.Bf5 ef5 10.0–0 0–0 11.Bb2 Nbd7 12.Nbd2 Nb6 13.Qb3) 8...ef5 9.Qd3 0–0 10.b5 cb5 11.Qb5 Ra6 12.Nbd2 Rb6 13.Qe2.

4.e3 e6 5.c3 Bd6 6.Bb5 Nbd7 7.Ne5 (7.Nbd2 0–0 8.0–0 (8.Be2 a5 9.ba5 c5 10.a6 ba6 11.Nh4 Be4 12.0–0 c4 13.g3; 8.Nh4 Bg4 9.Qb3 Ne4 10.Nhf3 Ndf6 11.0–0 c6 12.Bd3 Qc7 13.h3; 8.Bb2 c6 9.Be2 a5 10.a3 h6 11.0–0 Re8 12.Nh4 Bh7 13.g3; 8.a3 c6 9.Be2 Ne4 10.Bb2 Ndf6 11.c4 dc4 12.Nc4 a5 13.ba5) 8...c6 9.Be2 h6 10.Nh4 Bh7 11.g3 a5 12.Qb3 e5 13.b5) 7...c6 8.Be2 (better is 8.Nd7!? cb5 9.Nf6 (9.Ne5 Qc7 10.a4 Be5 11.de5 Qe5 12.0–0 ba4 13.Qa4) 9...Qf6 10.Na3–/+ a6 11.0–0 0–0 12.Bb2 Qg6 13.g3) 8...Ne5–+ 9.de5 Be5 10.0–0 (10.f4 Bd6 11.0–0 Qb6 12.g4 Be4 13.g5) 10...Bb1 (10...Ne4 11.Bb2 h6 12.Qc1 Qh4 13.f4) 11.Rb1 (11.f4 Be4 12.fe5 Nd7 13.Qd4) 11...Bc3 (11...Ne4 12.Qd3 Qf6 13.Rb3) 12.Qd3 (12.Qc2 Be5 13.f4) 12...Be5 13.f4 Bd6 14.Bf3 0–0 15.a3 e5 16.fe5 Be5 17.g3 Qc7 18.Kg2 Rae8 19.Bb2 Bb2 20.Rb2 Ne4 21.Be4 Re4 22.Rf3 Qe7 23.Re2 Re8 24.Kf2 Qg5 25.Qd2 d4! 26.Qd3 (26.ed4 Qd2 Double attack (26...Re2 Pinning; 26...Re2 Deflection; 26...Qd2 Decoy)) 26...de3 27.Ree3 Re3 28.Re3 Re3 29.Qe3 Qe3 30.Ke3 Kf8 31.h4 Ke7 32.g4 Ke6 33.Ke4 f6 34.a4 g6 35.Kd4 f5 36.g5 b6 37.Ke3 Ke5 38.b5 c5 39.Kf3 c4 40.Ke3 f4 41.Kf3 c3 42.Ke2 c2 43.Kd2 f3 0–1. Bourgon,Pierre – Segerberg,Tomas Olof (1800), IECG, 1998. (=1.d4 d5 2.b4 Bf5 3.Nf3 Nf6)

4.Nh4 Bd7 5.a3 =+.

4.Nh4 Bg6 5.Ng6= hg6 6.e3 (6.Qd3 c6=) 6...c6 (6...e6 7.a3=) 7.Bd3 (7.a3 e6=) 7...e6 (7...Qd6 8.h3=+) 8.0–0 (8.a3 Bd6=) 8...a5 (8...Bb4 9.c4–/+) 9.Bd2 (better is 9.b5!?=) 9...ab4 10.Qe1 (10.c3 Bd6 11.h3 bc3 12.Nc3 Na6–/+) 10...Qb6 11.c4 bc3 12.Bc3 c5 13.Nd2 cd4 14.Bd4 Bc5?? 15.Rb1?? Qa7?? 16.Bc5+– Qc5 17.Nb3?? Qe7 18.Bb5 Kf8 19.Rc1 Kg8 20.Rc8 Kh7 21.Rh8 Kh8 22.Qc3 Nc6 23.Bc6 bc6 24.Ra1 Ne4 25.Qc6= Rb8 26.Nd4 Qb4 27.Ne2?? Qb1 28.Rb1+– Rb1 29.Nc1 1–0. Rudolf – Clyde Barrow (1725), internet, 2007.

3.Bf4 e6

4.a3 Nf6 5.Nf3 Bd6 6.Ne5 (6.Bd6 Qd6 7.e3 Nbd7=) 6...Nc6 7.Nc6 bc6 8.Bd6 cd6 9.e3 0–0 10.Bd3 a5 11.c3 Bd3 12.Qd3 ab4 13.cb4 c5 14.dc5 dc5 15.bc5 Ne4 16.0–0 Nc5 17.Qc3 Ne4 18.Qd4 Qa5 19.f3 Nd6 20.Ra2 Nf5 21.Qd3 Rfc8 22.Rb2 Nd6 23.Rb3 Nc4 24.Rc3 Rc5 25.Rfc1 Rac8 26.Qd4 e5 27.Qd3 h5 28.h3 R8c6 29.Rb3 e4 (29...Qa7 30.Rcc3+=) 30.Qe2 (better is 30.fe4 Qd8 31.Rbc3+/–) 30...ef3+= 31.Qf3 Qc7 32.Qe2 Nd6 33.Rd1 Rc2 34.Qe1 (34.Qh5 Ne4 35.Nd2 Rd2 36.Rd2 Nd2 37.Qd5 Nb3 38.Qb3 Qg3–+) 34...Ne4 35.a4?? (35.Rbd3!?–/+) 35...Ra2 (better is 35...Rg6 36.Nd2 Nd2 37.Rd2–+) 36.Ra3 Rg2 (better is 36...Rf2 37.Qf2 Nf2 38.Kf2 Rc1–+) 37.Kg2 Rg6 38.Kh1 Qe5 39.Ra2 Ng3 (39...Ng3 40.Kg1 Ne2 41.Kf1 Qe3–+) 0–1. Rogers,Henry – Baroin,Bernard (2015), IECG, 2004.

4.h4? Bb4–/+ 5.Nd2 (5.c3 Bd6 6.Bd6 cd6–/+) 5...Bc3 6.Rb1 b6 (6...Nc6 7.Rb3 Bd4 8.Rb7–+) 7.Rb3 Ba5 (7...Bd4 8.e3 Bf6 9.g4–/+) 8.e3 (8.f3 h5–/+) 8...Nf6 9.Qc1 (9.f3 h5–/+) 9...Ne4 (better is 9...c5–/+) 10.Bb5?? (better is 10.c3–/+) 10...c6–+ 11.Ngf3 Nd2 12.Nd2 Bd2 13.Qd2 cb5 14.Rc3 Na6 15.Rc6 Rc8 16.Bg5 f6 17.Qc3 0–0 18.h5 Rc6 19.Qc6 Nb4 20.Qb5 Nc2 21.Kd2 Na3 22.Qb3 Nc4 23.Ke1 fg5 24.h6 g6 25.f3 Qd6 26.g4 Bg4! 27.fg4 Qg3 28.Ke2 Qf3 29.Kd3 Qh1 30.Qb5 Qd1 31.Kc3 Qc1 32.Kd3 Qd2# 0–1. Bogdan – reisinger, mySchach.de, 2005.

2.d4 Bg4

3.Nc3 e6 4.h3 Bh5 5.h4? Bb4–+ 6.Bb2 Nf6 7.f3 h6 8.a3 Ba5 9.e3 Ne4! 10.g4 Nc3 11.Bc3?? Bc3–+ 12.Kf2 Ba1 13.Qa1 Bg6 14.Qb2 b6 15.Ne2 0–0 16.Nf4 c5 17.c3 Bh7 18.Qb5 a6 19.Qb2 Nc6 20.Kg3 e5 21.de5 Ne5 22.Nh5 Qd7 23.Bh3 Qe7 24.Rf1 Nc4 25.Qc1 Qe3 26.Qe3 Ne3 27.Re1 Rfe8 28.Kh2 Nc4 29.Re8 Re8 30.Kg3 Na3 31.Nf4 d4 32.cd4 cd4 33.g5 Nc4 34.gh6 gh6 35.Nh5 Rd8 36.Kf2 d3 37.Nf6 Kg7 38.Nh5 Kf8 39.f4 d2 40.Bg4 d1Q 41.Bd1 Rd1 42.Nf6 Bf5 43.Ke2 Rd2 44.Kf3 a5 45.Ne4 Be4 (46.Ke4 a4–+) 0–1. rla – thotares (1635), internet, 2007.

3.Nc3 Nf6 4.f3 Bf5 5.Nb5 e6 6.Bf4 Bd6 7.Bg5? h6 8.Bf6=+ Qf6 9.g4 Bb4 10.c3 Ba5=+ 11.Qa4 Qh4 12.Kd2= Qg5 13.e3+/– 0–0? 14.Nh3 Bc3? 15.Nc3 Qf6 16.Nf4 Bh7 17.Re1 Nc6 18.Bb5 Rab8 19.Bc6 bc6+/– 20.Qc6 Rb2 21.Kc1 Rc2= 22.Kb1?? Rc3–+ 23.e4 Rb8 24.Ka1 Rc6 25.Re2 Qd4 26.Rb2 Qb2 0–1. Doobi – Dazzer, ChessWorld.net, 2005.

3.Nd2 e5 4.de5 Bb4 5.g3 Nc6 6.Bb2 f6 7.c3 Bc5 8.ef6 Nf6 9.Bg2 0–0 10.Ngf3 Qe7 11.0–0 Rae8 12.Re1 Ne5 13.Ne5 Qe5 14.Nf3 Qd6 15.Nd4 Nd7 16.Qd2 Ne5 17.Qg5 Bd7 18.c4 c6 19.cd5 cd5 20.Nf3 d4 21.Rad1 Nc4 22.Ba1 Ne5 23.Nd4 Ba4 24.Nf5 Qc7 25.Bd5 Kh8 26.Rc1 b6 27.Kg2 Qd7 28.Bb3 Bc6 29.f3 Bd5 30.Bd5 1–0. gumshoe (2325) – jelquez (2255), net–chess.com, 2014.

3.f3 Bf5 4.a3 =+.

3.Nf3 e6 =+.

3.h3 Bh5 4.Nd2 e5=+ 5.de5 Bb4 6.Bb2 Qh4 7.g3 Qe4=+ 8.c3?? Qh1–+ 9.Ngf3 Be7 10.Qa4 c6 11.0–0–0 Nd7 12.Qf4 Nc5 13.Qd4 Ne6 14.Qb6 ab6 15.g4 Bg6 16.Nh4 Bh4 17.e3 Bf2 18.Be2 Qh3 19.Nf1 Be3 (20.Ne3 Qe3 21.Rd2 Ra2–+) 0–1. jimmyjf – JF_, ChessWorld.net, 2004.

3.f3 Bh5

4.a3!? =.

4.Nc3 e5 5.a3 Nc6 6.de5= d4 7.g4?? Qh4–+ 8.Kd2 dc3 9.Kc3 Rd8 10.Bd2 Ne5 11.e3 Ng4! 12.fg4 Bg4 13.Nf3?? Qf6 14.Kb3 Bf3 15.Qe1 Bh1 16.Bb5 Bc6 17.Bc3 Qe6 18.Bc4 Ba4! 19.Ka4 A deflection 19...Qc4 20.Qg3 Rd5 (21.Qe5 Re5 22.Be5 Qa6 23.Kb3 Qe6 24.c4 Qe5–+) 0–1. Andylein1989 – mrkt, myChess.de, 2005.

4.e3 e6 Black launches an attack 5.a3 Bd6 6.c4 Qh4 7.Kd2 Nf6 8.Nc3 a5 9.Bb2 0–0 10.c5 ab4 11.ab4 Ra1 12.Qa1 Bh2 13.Nge2 Bg6 14.g3 Qh6 15.Qe1 Nc6 16.Qf2 Nd4 17.Nd4 Bg3 18.Qg3 Qh1=+ 19.Be2 Re8 20.Qc7= e5 21.Ndb5 d4!–/+ 22.ed4 e4–+ 23.Nd6?? e3 0–1. Mengs – JF_, ChessWorld.net, 2004.

4.g4 Bg6=+

5.Nc3 Nc6 6.Ba3? e6 7.Qc1? Qh4 8.Kd1 Nd4 9.e3 Nc2 10.Qd2 Na1 11.Nb5 Bd6 12.Bb2 Nc2 13.Bg7?! Bb4 14.Bc3 Bc3 15.Nc3 Ne7 16.Nb5 0–0 17.Bd3 Bd3 18.Nd4 Nd4 19.ed4 Bg6 20.Ne2 Rac8 21.Nf4 c5 22.Ng2 Qf6 23.h4 Qf3 24.Kc1 cd4 25.Kb2 Rc2 26.Qc2 Bc2 27.Kc2 Rc8 28.Kb1 Qg2 29.Rc1 Rc1 30.Kc1 d3 31.g5 d2 32.Kd1 Nf5 33.h5 Ne3 0–1. color1972 – willow27, ChessWorld.net, 2005.

5.Nc3 e5 6.Qd2 ed4 7.Nb5 –+.

5.Nc3 e6 6.Nh3 h5 7.gh5 Rh5 8.Bf4? Qh4?? 9.Kd2?? Bf5 10.Be3? Bh3 11.Bh3 Qh3 12.Bf4 Bb4 13.Bc7 Nc6 14.a3 Ba5 15.Rg1 Bc7 16.Rg7 Nge7 17.Nb5 Ba5 18.c3 Qh2 19.Qc2 a6 20.Nd6 Qd6 21.Rb1 Rb8 22.a4 Nd4 23.Qc1 Qe5 24.e3 Rh2 25.Kd3 Nf3 26.Rg3 Qe4 0–1. lucky bucky – colinwebb, ChessWorld.net, 2004.

5.Kf2!? –/+.

5.Bf4 e5 6.de5 Bb4 7.c3 Bc5 –/+.

2.d4 g6

3.Bb2 Nf6 4.Nd2 Bg7 5.Ngf3 0–0 6.e3 Bg4 7.Be2 c6 8.h3 Bf3 9.Nf3 Nbd7 10.c4 Re8 11.0–0 dc4 12.Bc4 Ne4 13.Qc2 Ndf6. toga (2265) – rhand (2300), net–chess.com, 2009.

3.Nf3 Bf5 =.

3.Nf3= Bg7 4.e3 e6 5.c3 Ne7 6.Be2 a6 7.0–0 c6 8.Ne5 Nd7 9.Nd7 Bd7 10.Re1 0–0 11.Bf3 Rb8 12.e4= b6 13.e5 Qc7 14.Bf4 c5 15.bc5 bc5= 16.dc5 Qc5=+ 17.a4 Nc6 18.Be3 Qc4 19.Be2= Qh4 20.Nd2 Ne5 21.g3 Qf6 22.Bd4 Qd8 23.Ba6= Qa5 24.Be2 Nc6 25.Bg7 Kg7 26.Nb1 f6 27.Nd2 Qc3=+ 28.Nf3 Nb4 29.Rc1 Qa3 30.Rc7 Rf7 31.Qd2 Ba4 32.Rc3 Qa2 33.Qf4? Rb6 34.Rc7 Rb7?? 35.Rf7+/– Rf7 36.Qb4 e5 37.Nd2 Bb3?? 38.Nb3+– (38.Qb3?! Qd2 39.Qb1 Rc7+/–) 1–0. jlambe (1995) – mgoodrich (2080), net–chess.com, 2008.

3.c3 Bg7

4.a4 Nf6 5.Nf3 a6 6.h3 Bg4?? (better is 6...a5=) 7.hg4+– Ng4 8.Ng5 (8.Nbd2 f5+–) 8...Nf6 9.Nd2 h6 10.Ndf3?? (10.Ngf3 Qd6+–) 10...e6?? (10...hg5 11.Rh8 Bh8 12.Bg5=) 11.Ne5?? (better is 11.Nh3+–) 11...hg5= 12.Rh8 Bh8 13.Bg5 Nbd7 (13...Qd6 14.Bf4 Ne4 15.e3=) 14.e3 White prepares the advance b5 14...Qe7 (14...Qc8 15.Bf4=) 15.Qf3 Qf8 16.b5?? (better is 16.Nd7 Nd7 17.Bd3+=) 16...Ne5–/+ 17.de5 Ne4 18.Bh4? (better is 18.Bf6–+) 18...Be5 19.Kd1 (19.ba6 Bc3 20.Kd1 ba6 21.Rc1–+) 19...Nc3 20.Kc2 Qc5 21.Kb3 (21.Bd3 Na2 22.Kd1 Ba1 23.Bf6 Qc1 24.Ke2–+) 21...Na2! 22.Ka2 (22.Ra2 Qc3 Mate attack; 22.Ka2 Qc2 Mate attack) 22...Qc2 (22...Qc2 23.Ka3 Qb2) 0–1. Hudak,Ondrej – Kince,Jozef, 8. Team Championship Slovakia Prelimina, 2008. (=1.d4 d5 2.b4 g6)

4.Nf3 Nf6 =.

4.Bg5 Nf6 5.Nf3 0–0 6.h3 h6 7.Bh4 a6 8.e3 Nbd7 9.Bd3= Nb6 10.0–0 Ne8 11.a3 Nd6 12.Bg3 Nbc4 13.a4 Nb2=+ 14.Qc2 Nd3 15.Qd3 Bf5 16.Qe2 g5 17.Nbd2= Ne4 18.Ne4+= Be4 19.Nh2 e6 20.Ng4 c6 21.f4 f5 22.Nf2 gf4 23.Ne4 fe4 24.Bf4 Qe7 25.Qg4 Kh7 26.Rf2 Rf6 27.Raf1 Raf8 28.Be5 Rf2 29.Rf2 Rf2 30.Kf2 Be5 31.de5 Qf7 32.Qf4 Qg7 33.g4 Qe7 34.Kg3 b6 35.h4 Kg6 36.Qf1 c5 37.h5 Kg7 38.bc5 bc5 39.Qa6 Qc7?? 40.Qe6+– Qa5 41.Qd5 Qc3 42.Qd7 Kf8 43.Qd6 Ke8 44.Qh6 Qe1 45.Kh3 Qh1= 46.Kg3 Qe1 47.Kh3 ½–½. capacuba (2185) – mpenga (2450), net–chess.com, 2009.

2.d4 h6

3.a3 Nf6 =.

3.Bb2 Bf5 4.Na3 a6 5.e3 e6 6.h4? (better is 6.c3!?+=) 6...Bb4–+ 7.c3 Bd6 8.g4 Be4 9.f3 (9.f3 Bh7 10.Ne2–+). Young,James – Lowe,EB, Preston Guardian consolation–2 rd3, 1882.

3.c3 Nf6 4.Nf3 Bg4 5.e3 b5 (5...Nbd7 6.Be2=) 6.Be2 (6.Bb5 c6 7.Be2 e6+/–) 6...e6 (6...Bf3 7.gf3 c6 8.a4 ba4 9.Qa4=) 7.h3 (7.Bb5 c6 8.Bd3 Bd6+/–) 7...Bf5 (7...Bf3!? 8.gf3 a5=) 8.Bb5+= c6 9.Ba4 Bd6 10.0–0 Bc7 (10...0–0 11.Nbd2+=) 11.Nbd2 g5 12.Nh2 (12.Ne5!? Be5 13.de5+–) 12...h5+= 13.Nhf3 g4 14.hg4 (14.Ne5 Be5 15.de5 gh3 16.ef6 hg2 17.Re1 (17.Kg2? Rg8 18.Kh2 Qf6–+) 17...Qf6 18.Nf3+= (18.Kg2 Rg8 19.Kf1 Bd3 20.Qe2 Qg6 21.Qd3 Qd3 22.Re2 a5–+)) 14...hg4–/+ 15.Ne5 Ne4 (better is 15...Nfd7 16.g3 Qf6–+) 16.g3?? (16.Ne4 Qh4 17.f4 Be5 18.Ng3 Qg3 19.Bc6 Nc6 20.Qa4–+) 16...Qg5 (better is 16...Be5 17.de5 Qg5–+) 17.Nc6?? (17.Bc6 Kf8 18.Ndf3 gf3 19.Qf3 Nc6 20.Nc6–+) 17...Kf8 (17...Qh5 18.Ne5 Ke7 19.Ng6 Bg6 20.Ne4 Qh2) 18.Ne4 (18.Nf3 gf3 19.Qf3–+) 18…Qh5 (18...Qh5 19.Nb8 Qh2) 0–1. axxle (2255) – sammyo (1945), net–chess.com, 2013. (=1.d4 d5 2.b4 h6)

3.Nc3 e5 4.a3 ed4 5.Qd4 =.

3.Nc3 Nf6 4.h3 (4.a3 Bf5=+) 4...a6 (4...Nbd7 5.a3=+) 5.Nf3 (5.a3 Bf5=+) 5...Bf5 (5...e6 6.a3=) 6.e3 (6.g4 Bg6=) 6...e6=+ 7.a3 b5 (7...Bd6 8.Bd3=+) 8.Bd3 (8.g4 Bg6=) 8...Ne4 (8...Bd3 9.cd3 a5 10.0–0= (< 10.Nb5 ab4 11.0–0 c6–+)) 9.Bb2 (9.Be4 de4 10.Ne5 Nd7=) 9...Nc3 (9...Nd7 10.0–0+=) 10.Bc3 Nd7 (10...Bd3 11.cd3 Bd6 12.0–0=) 11.Bf5+= ef5 12.0–0 Bd6 (12...Qf6 13.a4+=) 13.Re1 (13.Qd3 Qf6+=) 13...Nf6 (13...Qe7 14.Qd3=) 14.Ne5 (14.Qd3 Ne4=) 14...Ne4 15.Bb2 0–0 16.Qh5 Qg5 17.Qg5 hg5 18.c3 g4 19.f3 gf3 20.Nf3 Bg3 21.Rf1–/+ f6 22.Rac1 g5 23.Nh2 Bh2 24.Kh2=+ f4 25.ef4+= gf4 26.Rf4+/– Nd6 27.Rcf1 f5 28.R1f3 Rf7 29.Rg3 Rg7 30.Rg7 Kg7 31.g4 Rf8 32.gf5 Rf5 33.Rf5 Nf5 34.Bc1 Kg6 35.Bf4 c6 36.Kg2 Kh5 37.Bg3 Ne3+= 38.Kf3 Nc4 39.h4 Na3= 40.Ke3 Kg4–/+ 41.Be1 Nc4 42.Ke2 Nd6 43.Kd3 Nf5 44.Ke2 Nd6 45.Kf1 Nc4 46.Kg1 a5 47.Kg2?? a4–+ 48.h5 a3 49.h6 Ne3 50.Kg1?? Kg5 51.h7+= a2 52.h8Q a1Q 53.Qh4 Kf5=+ 54.Qf2 Ke4 55.Qe2 Qc1?? 56.Kf2+– Qc2 57.Bd2 Qd3 58.Qe3 (58...Qe3 59.Be3+/–; 58.Qf3#) 1–0. iboyd (1950) – valerypavlovich (2120), net–chess.com, 2006.

3.e3 a6 4.a3 Nc6 (4...Bf5 5.Ne2=) 5.Nc3 (5.Nf3 Nf6=) 5...Nf6 6.Nf3 Bg4 7.h3 Bf3 8.Qf3 e6 (8...e5 9.de5 Ne5 10.Qd1=) 9.Bd3 (9.Be2 e5 10.de5 Ne5=) 9...Bd6 (9...e5 10.de5 Ne5 11.Qd1=) 10.0–0 Ne7 (10...0–0!?=) 11.e4+/– de4 12.Ne4 Ne4 13.Be4 c6 14.c4 Qc7 (14...Bc7 15.Be3+/–) 15.g3 (better is 15.c5!?+–) 15...Qd7+= 16.Re1 Bc7 17.Qc3 (17.Bb2 e5+=) 17...Rd8 18.d5 (18.Bb2 e5+/–) 18...cd5 19.cd5 (19.Qg7? Rg8 20.Qh6 de4–+) 19...e5 (19...ed5 20.Bd5 Qd5 21.Qc7+=) 20.g4 (20.Bb2 0–0+=) 20...Bd6 21.Be3 (21.Qf3!?+=) 21...h5+= 22.Bb6 (22.f3 hg4 23.hg4 g6+=) 22...Rc8 (22...hg4 23.Bd8 Rh3 24.Qd2 Kd8 25.Red1–/+) 23.Qg3 hg4 24.Qg4? (24.hg4 f6 25.Rac1=) 24...Qg4?? (better is 24...f5 25.Bf5 Nf5–+) 25.hg4+= Kd7 (25...g6 26.g5=) 26.Rac1 Rc1 27.Rc1 Rc8 (27...g6!?=) 28.Rc8+/– Kc8 29.Kg2 g6 (29...f6 30.Bf3+=) 30.g5 Kd7 (30...Nf5 31.Kh3+=) 31.Kf3 Nc8 32.Be3 (32.Bc5 a5 33.Bd3 b6 34.Bb5 Ke7 35.Bd6 Nd6=) 32...b5 (32...Be7 33.Ke2+=) 33.Bc2 (33.Kg4 Be7+=) 33...Kc7 34.Ke4 Ne7 (34...Nb6 35.Bd1+=) 35.f3 (35.Bd2 Ng8+=) 35...Nf5 (35...Ng8 36.Kd3+=) 36.Bf2+/– Kd7 37.Bb3 (37.Bd3 Ke8+/–) ½–½. mtrold1 – Chief10, internet, 2001.

3.e3 e5 4.a3 Bd6 5.c4 dc4 6.Bc4 ed4 7.ed4 =.

3.e3 Bf5 4.Bd3 Bd3 5.Qd3 c6 6.Nf3 Nf6 7.Nc3 e6 8.a3 Bd6 9.Ne5 Nbd7 10.f4 0–0 11.0–0 Nb6 12.h3 Nc4 (better is 12...a5!? 13.b5 c5+=) 13.Nc4+= dc4 14.Qc4 Nd5 15.Nd5 (15.e4 b5 16.Qd3+/– (worse is 16.Qc6 Rc8 17.Qb5 Nc3+=)) 15...ed5+= 16.Qd3 Qh4 17.Qf5 (17.b5 Qe7+=) 17…Rad8 0–1. irish paddy – zucchini, ChessWorld.net, 2012.

2.e3 a6

3.a3 Nd7 4.c4 (4.d4 Ngf6=) 4...dc4+= 5.Bc4 b5?? (better is 5...Ne5 6.Be2 Nd3 7.Bd3 Qd3+=) 6.Bf7!+/– Kf7 Decoy to f7 7.Qf3 A double attack 7...Ngf6 8.Qa8 Ne5 9.Nf3 Nd3 10.Ke2 e5 11.Nc3 (11.Qc6 Be7+–) 11...Qd7 (11...c5 12.Ng5 Kg6 13.Ne6+=) 12.Ne4+– c6 13.Nc5?? (better is 13.Nf6 Kf6 14.Ne1+–) 13...Bc5= 14.bc5 Rd8 (14...e4 15.Ne1=) 15.Qb8 Exerts pressure on the isolated pawn 15...Qd5 16.Qc7 Kg8 17.Rb1 (17.a4!?=) 17...Bg4 Threatens e4 18.h3 Bh5 Black threatens e4 (worse is 18...Nc1 19.Rhc1 Bf3 20.gf3+/–) 19.g4 (19.Kf1 A) 19...Nc1?! 20.Rc1 Ne4 21.Kg1 (21.Ne5?? Qd2 22.Qd8 Qd8–+) 21...Bf3 22.gf3=; B) 19...Rf8 20.Qd6 Bf3 21.gf3 Qf3 22.Qd3 Qh1 23.Ke2 Ne4–+) 19...Ng4 20.Rg1 (20.hg4 Bg4) 20...Rd7?? (20...e4 21.Rg4 ef3 (21...Nc1?! 22.Rc1 Bg4 23.hg4 Qd3 24.Kd1 ef3 25.Qa5–+) 22.Kf1 Bg4 23.hg4 Rf8–+ (23...Nc1?! 24.Rc1 Qd2 25.Re1–+)) 21.Qc8= Rd8 22.Qf5?? (22.Qc7 e4 23.Rg4 ef3 (23...Nc1?! 24.Rc1 Bg4 25.hg4 Qd3 26.Kd1 ef3 27.Qa5–+) 24.Kf1 Bg4 25.hg4 Rf8–+ (25...Nc1?! 26.Rc1 Qd2 27.Re1–+)) 22...g6?? (better is 22...Nh2! 23.Qh5 Nc1 24.Rbc1 Qd3 25.Ke1 Nf3 26.Qf3 Qd2 27.Kf1 Qc1 28.Kg2 Qc5–+) 23.Rg4+= Bg4 24.Qg4 Qa2 (24...Rf8 25.Qg2–/+) 25.Ng5 (25.Bb2 Nb2 26.Rb2 Qb2 27.Qe6 Kf8 28.Qf6 Ke8 29.Qc6 Ke7 30.Qc7 Rd7 31.Qe5 Qe5 32.Ne5+–) 25...Nc1–/+ (25...Qb1 26.Qe6 Kg7 27.Qe7 Kh6 28.Nf7 (28.Qd8 Nc1 29.Kf1 Qf5+=) 28...Kg7 29.Nd8 Kh6 30.Nf7 Kg7 31.Ne5 Kh6 32.Ng4 Kh5 33.Nf6 Kg5 34.Ne4 Kh6 35.Qf8 Kh5 36.Nf6 Kg5 37.Nh7 Kh5 38.Nf6 Kg5 39.Ne4 Kh5 40.Qh8) 26.Kf1 Nd3 (26...Qb1 27.Qe6 Kg7 28.Qe7 Kh6 29.Nf7 Kg7 30.Nd8 Kh6 31.Nf7 Kg7 32.Ne5 Kh6 33.Ng4 Kh5 34.Qh7 Kg5 35.f4 Kf5 36.Qd7 Ke4 37.Nf6 Kf3 38.Qg4; 26...Qd2 27.Qe6 Kg7 28.Qe7 Kh6 29.Nf7 Kg7 30.Nd8 (30.Qd8?! Nd3 31.Qh8 Kf7 32.Qh7 Kf6 33.Qh4 Ke6+=) 30...Kh6 31.Nf7 Kg7 32.Ne5 Kh6 33.Ng4 Kh5 34.Nf6 Kh6 35.Qf8 Kg5 36.Ne4 Kh5 37.Ng3 Kh4 38.Qh6) 27.Rd1 (27.Qe6 Qe6 28.Ne6 Rd5–/+) 27...Qb3 (27...Rf8 28.Qd7 Rf2 29.Kg1=) 28.Kg1 (28.Qe6 Qe6 29.Ne6 Rd5–/+) 28...Rf8 (28...h5 29.Qe4 Qd1 30.Kh2=) 29.Rf1+= Nc5 (29...h6 30.Ne4 Kh8 31.f3+=) 30.Qh4 (better is 30.d4!? h5 31.Qg2=) 30...h5–/+ 31.Ne4 Ne4 (31...Qc2!? 32.d3 Ne4 (32...Nd3?! 33.Qe7=) 33.Qe4 Rf5–/+) 32.Qe4+= Qe6 33.Kh2 (33.d4!?+=) 33...Kh7 (33...Rf6 34.d4 ed4 35.Qe6 Re6 36.ed4–+) 34.f4 (34.f4 Qd6 35.d4 ef4 36.ef4–+; 34.d4 Qc4 35.Kg1 Rf5–+) 1–0. Heinola – Rosenqvist, Pori ch–Satak, 1984. (=1.e3 d5 2.b4 a6)

3.a3 e5 4.Bb2 Bd6 5.Nf3 =.

3.c3 b5 4.a4+= c6 (4...ba4 5.Nf3 Bd7+=) 5.a5 (better is 5.ab5!? Qb6 6.bc6 Nc6 7.Qa4+/–) 5...Nf6 (5...e5 6.d3=+) 6.f3 (6.Nf3 Nbd7=) 6...e6 (6...e5 7.d4 Bd6 8.Bd3=+) 7.Nh3 (7.d4 Bd6=+) 7...Be7 (7...c5 8.bc5 Bc5 9.Nf4–/+) 8.g4 (8.d4 Qc7=+) 8...g6 (8...c5 9.bc5 Bc5 10.g5–/+) 9.f4 (9.d4 h6=) 9...Ne4 (9...h6 10.Bb2=+) 10.d3 (10.g5 h6=+) 10...Bh4=+ 11.Ke2 Nd6 12.Nd2 Be7 13.g5 h5 14.Bg2= Nf5 15.e4 de4 16.Be4 Bb7 17.c4 Nd4 18.Kf1 bc4 19.Bb2? cd3 20.Bd3 Bb4–/+ 21.Ra4 c5–+ 22.Nf3 Bf3 23.Qe1 Bh1 24.Qe5 Qe7 25.Qh8 Kd7 26.Bd4 cd4 27.Qd4 Bd6 28.Nf2 Bc6 29.Rb4 Bd5 30.Rb6 h4 31.Ne4 Bf4?? 32.Nf6= Kd8 33.Qf4+= Nd7? 34.Rd6+– Ra7 35.Ng8 Qe8 36.Rd7 Qd7 37.Qb8 Qc8 38.Qa7 Qc1 39.Ke2 Qb2 40.Ke3 Qc1 41.Kd4?? Qa1–+ 42.Ke3 Qe5 43.Kf2 Qh2=+ 44.Ke3?? Qg3 45.Kd4?? Qg4 46.Ke5?? Qg5–+ 47.Kd6 Qg3 48.Kc5 Qd3 49.Qb6?? Kc8–+ 50.Ne7 Kd7 51.Qd6 Ke8 52.Kb6 Qb5 53.Kc7 Qb7# 0–1. bjhaskins – esko (1700), net–chess.com, 2003.

3.c3 Nf6!? =+.

3.c4 e5 4.Bb2 Qf6 (4...Nf6!?+=) 5.cd5 Bb4? (better is 5...Qd6+=) 6.Qa4+– c6 7.Qb4 cd5 8.Nf3 (8.f4 Nc6 9.Qa4 Bf5+–) 8...Nc6 9.Qh4 (9.Qa4 Bd7+–) 9...Qf5? (9...Qh4 10.Nh4 f6 11.Be2+–) 10.Na3 (better is 10.Qg3!? Qc2 11.Be5 Qc1 12.Ke2 Nge7 13.Qg7 Rg8+–) 10...Nge7 11.Be2 (11.Qg3 Ng6+–) 11...h6 (11...e4 12.Ng5 0–0 13.0–0+–) 12.0–0 (12.Qg3 Ng6+–) 12...Ng6 13.Qg3 (13.Qa4 0–0+–) 13...Qf6 (13...Qg4 14.Rac1+–) 14.d4 e4 15.Ne5 (15.Nd2 Nge7+–) 15...Nce7 (15...Nge5 16.de5 Qg5 17.Qg5 hg5 18.Nc2+–) 16.Ng6 (16.Rac1 Qh4+–) 16...fg6 (16...Qg6 17.Qg6 Ng6 18.Rfc1+–) 17.Rac1 0–0 18.Rc7 (18.f3 Qb6 19.Bc3 Bf5+–) 18...Rf7 19.Qe5 (better is 19.Rfc1 b5+–) 19...Be6 (19...Qe5 20.de5 Nc6 21.Rf7 Kf7 22.f3+–) 20.Qf6 (20.Rb7 Nc6 21.Rf7 Qe5 22.de5 Kf7+–) 20...gf6 (20...Rf6?? 21.Re7 b5 22.Rc1+–) 21.Rb7 Rc8 (21...Nc6 22.Rb3+–) 22.Ba6 Ra8 23.Rb6 Bc8 24.Bc8 (24.Be2!? Bf5+–) 24...Nc8 25.Rb3 (25.Rb5 Rfa7+–) 25...Rfa7 (25...Nd6 26.Rc1+–) 26.f3 Nd6 27.Rc1 (27.Nb5 Nb5 28.Rb5 Ra5+–) 27...ef3 (27...Kf7 28.Kf2+–) 28.gf3 f5 (28...Kf7 29.Kf2+–) 29.Rc6 (29.Rc5 Nc4 30.Nc4 dc4 31.Rc4 Ra2+–) 29...Rd7 (29...Ra6 30.Rc5+–) 30.Rbb6 Ne8 (30...Rad8 31.Bc3 g5 32.Bb4+–) 31.Rg6 Kh7 (31...Rg7 32.Kf2 Rg6 33.Rg6 Kh7 34.Rb6+–) 32.Rh6 Kg8 (32...Kg7 33.Rhg6 Kh7 34.Kf2+–) 33.Rbg6 (33.Kf2!? Rda7 34.Rb3 Kg7+–) 33...Ng7 34.Rg2 Re8 (34...Rb7 35.Rhg6+–) 35.Re2 (35.Nc2 Rb7 36.Rhg6 Kh8+–) 35...Rde7 (35...Rb7 36.Rc6+–) 36.Kf2 (36.Nc2 Ne6+–) 36...f4 37.e4 Kf7 (37...de4 38.fe4 Re4 39.Re4 Re4 40.Rh4+–) 38.Nb5 (38.Rh4 Ke6+–) 38...Rb8 (38...Kg8 39.Nc3 de4 40.fe4+–) 39.a4 Re6 (39...de4 40.fe4 Ra8 41.Nc3+–) 40.Re6 (40.Rh4 Rf6+–) 40...Ke6 (40...Ne6 41.ed5 Nf8 42.Re4+–) 41.Nc7 Kd6 (41...Kf7 42.Nd5 Ne6 43.a5+–) 42.Nd5 Nh5 (42...Ne6 43.a5+–) 43.Ba3 (43.Ba3 Kd7 44.Rb2 Rb2 45.Bb2+–) 1–0. Campos Calvo Sotelo,Juan – Munoz,Juan Carlos, Vila de Padron, 2000.

3.d4 Nc6 4.b5 ab5 5.Bb5 Ra5 (5...Bd7 6.Nf3=) 6.a4 (6.Bc6 bc6 7.Bd2 Ra6=) 6...Bd7 7.Bd2 Qa8?? (better is 7...Ra8=) 8.Ba5+– Qa5 9.Qd2 Qd2 (9...e6 10.Bc6 Qd2 11.Nd2 Bc6 12.Ngf3+–) 10.Nd2 Nf6 (10...e6 11.Ngf3+–) 11.c4 (better is 11.Ngf3+–) 11...Be6?? (better is 11...dc4 12.Nc4 e6+–) 12.Bc6 bc6 13.Rb1 (better is 13.a5!? dc4 14.a6 c5+–) 13...Kd7 14.Ngf3 g6 (14...c5 15.dc5 dc4 16.Rc1+–) 15.Ne5 (15.Ne5 Kc8 16.a5+–) 1–0. marekt – unknown, internet, 2002.

3.d4 e5 4.a3 Nc6 5.de5 Ne5 6.Bb2 =.

3.d4 e6 4.c3 Bd6 5.e4 de4 6.Qg4 g6 7.Qe4 Nf6 8.Qh4 Be7 9.Nf3 h6 10.Bd3 Nd5 11.Qe4 f5 12.Qe5 Bf6 13.Qg3 g5 14.0–0 Nc6 15.b5 Nce7 16.ba6 ba6 17.Ba3 Nf4 18.Bc4 c6 19.Re1 h5 20.Ne5 h4 21.Qf3 Bb7 22.Nd3 Nd3 23.Re6 1–0. COMP – NN, internet, 2002.

3.Nf3 Nf6 =.

3.h3 e5 4.Bb2 =+.

3.h3 Bf5 4.Nf3= h6 (4...e6 5.a3=) 5.c4 (5.Bb2 e6=) 5...c6 (5...dc4 6.Bc4 Nc6 7.a3=) 6.cd5 (6.c5 b6=) 6...cd5 7.Bb2 f6?? (7...e6 8.b5=) 8.d4 (better is 8.Nh4 Be6 9.Ng6+–) 8...e6= 9.a3 Bd6 (9...Ne7 10.Nc3=) 10.Bd3 (10.Nh4 Bh7=) 10...Ne7 11.0–0 Bc7 12.Nc3 Nd7 13.Re1 b5 14.e4+/– de4 15.Ne4 Nb6 16.Ng3 Bd3= 17.Qd3 Bg3 18.fg3 Qd6 19.g4 Nc4 20.Bc3 Nd5 21.Qg6 Kf8 22.Qc2 Kf7 23.Nh4 Ne7 24.Nf5?? ef5–+ 25.gf5 Qf4 26.Re6 Rhe8 27.Rae1 Nf5 28.d5 Red8 29.R1e4?! Qg5 30.Rg4 Nfe3 31.Qe2 Ng4 32.hg4 Re8 (33.Qf3 Rad8–+; 32...Qd5!? 33.Re7 Kf8 34.Rc7–+) 0–1. gtate (1960) – bienopia (2100), net–chess.com, 2006.

3.a3 Nf6

4.d4 Bg4 5.f3 (5.Be2 Be2 6.Ne2 a5=) 5...Bh5 (5...Bf5 6.c4=) 6.g4 (6.c4 Bg6=) 6...Bg6 7.b5 (7.h4 h5 8.g5 Nfd7=) 7...ab5 (7...e6 8.g5 Nfd7 9.h4–/+) 8.Bb5 (8.h4 Ra5–/+) 8...c6–/+ 9.Bd3 e6 10.Bg6 hg6 11.c3 (11.g5 Nh7 12.f4 Bb4 13.c3 Bd6–/+) 11...Nbd7 (11...Qc7 12.Ra2–/+) 12.Bb2 (12.g5 Nh7 13.f4 Bd6–/+) 12...Qb6 (12...Qc7 13.f4–/+) 13.Qc2 Bd6 14.Ra2 g5 15.e4 de4 16.fe4 Bf4 17.Bc1 Bc1 18.Qc1 Ne4 19.Rb2 Qa6 20.Qe3–/+ f5 21.gf5 ef5 22.Nd2 Ndf6 23.Ne4 Ne4 24.Ra2? Qc4–+ 25.Rf2? g6 26.Re2? Ra3 27.Kf1 Rc3 28.Qg5 Rc1 29.Kg2 Rg1! 30.Kg1 Qe2 31.Qf4 Qg4 32.Qg4 fg4 33.Kg2 Rh3 34.Re1 Kd7 35.Re4 Rh5 36.Kg3–/+ b5 37.Rg4 g5 38.Re4 Kd6 39.Re5 b4 40.h3 b3 41.Re3 Kd5 42.Rb3–/+ Kd4 43.Kg4= Rh8 44.Kg5 c5 45.h4 c4 46.Rf3 c3–/+ 47.Rf4 Ke3 48.h5?? c2 49.Rc4? Kd3 50.Rc7–/+ Kd2 51.Rd7 Kc1 52.h6 Kb1 53.Rb7 Kc1 54.Kg6?? Kd1?? 55.Rd7= Kc1 56.Kg7?? Rb8?? 57.Rc7 Kb1 58.h7 c1Q 59.Rc1 Kc1 60.h8Q Rh8 61.Kh8 Kc2 62.Kg8 Kd3 63.Kf8 ½–½. nwishn (1900) – valerypavlovich (2120), net–chess.com, 2006.

4.Nf3 =.

3.Bb2

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

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

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

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

3.c4 dc4

4.Bc4 Nc6 5.Nf3 =.

4.Bc4 e6 5.Bb2 (5.a3 b5 6.Be2 Bb7=) 5...b5 (5...Qg5 6.Qf3=+) 6.Bb3 (6.Be2 Bb7 (6...Bb4 7.Bg7 Bb7 8.Bf3 Bf3 9.Nf3+–) 7.Bf3 Bf3 8.Qf3 Nd7=) 6...Bb7=+ (6...Bb4? 7.Qf3 (7.Bg7?! Qg5 8.Bh8 Qg2=) 7...Ra7 8.Bg7+–) 7.Nf3 Nf6 (7...Bb4?? 8.Bg7 Nd7 9.Bh8+–) 8.0–0 (8.Bc3!?=+) 8...Bb4–/+ 9.d4 0–0 10.Nbd2 Nbd7 11.a3 Bf3 (better is 11...Bd6–/+) 12.Qf3?? (better is 12.Nf3 Bd6 13.Rc1–/+) 12...Bd2–+ 13.Rfd1 Ba5 14.d5 (14.e4 Ne8–+) 14...Qe7 (14...ed5?! 15.Bd5 Nd5 16.Rd5–+; 14...Nd5?! 15.Bd5 ed5 16.Rd5–+) 15.e4 e5 16.Rac1 Bb6 17.Rc6 Rfd8 18.d6 cd6 19.Rcd6 Bf2! 20.Kf2 Nc5 21.Rd8 Rd8 22.Rd8 Qd8 23.Bd5 Nce4! 24.Be4 Qd2 25.Kg1 Qb2 26.Qd1 Qd4 (27.Qd4 ed4–+) 0–1. gtate (1910) – cress (2075), net–chess.com, 2004.

3.d4 Nf6

4.c4 e6 5.Ba3 (5.a3 Be7=) 5...Be7 (5...dc4 6.Bc4 b5 7.Bd3+=) 6.Nf3 0–0 7.c5 Nc6 8.Bd3 b5 9.0–0 Rb8 10.Bc2 (10.Nc3 a5 11.Rb1 ab4 12.Bb4 Bd7+=) 10...Ng4 (10...a5 11.Qe1=) 11.Qd3 g6 12.h3 Nh6 13.Nc3 a5 14.ba5 (better is 14.Rfb1+=) 14...b4–/+ 15.Nd5? (15.Ba4 Bd7 16.Bc6 Bc6–/+) 15...Qd5 (15...ed5!? 16.Bc1 Na5 17.Qd1–+) 16.Bb3 Qd7 17.Bb2 f6 (17...Na5 18.Ne5 Qd8 19.Rfd1–+) 18.Rad1? (18.Ba4 Nf7 19.Rfd1 Nce5 20.Bd7 Nd3 21.Bc8 Nb2+=) 18...Ra8 (18...Na5 19.e4–+) 19.d5 (better is 19.Qe4 Ra6 20.d5 Na5 21.de6–+) 19...Nb8 (19...Na5 20.d6 cd6 21.cd6–+) 20.c6 (20.Qe4 c6 (20...Bc5?? 21.de6 Qe7 22.Qa8 Be6 23.a6+–) 21.d6 Bd8+=) 20...Qd8 (20...Qe8 21.Nd4–/+) 21.de6 Nc6 (21...Qd3 22.Rd3 Nc6 23.Rc1 Na5 24.Rc7 Nb3 25.ab3–/+) 22.Qb5? (better is 22.Qc2 Qe8 23.Ba4+=) 22...Qe8–/+ 23.Rd7? (better is 23.Bd5 Ra5 24.Qc6 Qc6 25.Bc6 Ra2 26.Rb1 Be6 27.Nd4–/+) 23...Bd7?? 24.ed7+– Qf7 25.Bf7 Nf7 26.Qc6 Kg7 27.Nd4 Ne5 28.Ne6 Kh6 29.Be5 Rg8 30.Bc7 f5 31.Rd1 Bf6+– 32.d8Q Rad8 33.Nd8 Bc3 34.Bf4 Kh5 35.Qf3 Kh4 36.Qg3 Kh5 37.Qg5 1–0. epasacrifice – gordiemac, ChessWorld.net, 2012.

4.Nf3 Bf5 =.

4.h3 Bf5 5.c3 (5.a3 e6=+) 5...g6 (5...e6 6.Qa4 Qd7 7.Qa5–/+) 6.g4 Be4 (6...Bd7 7.Nf3=) 7.Rh2 (7.f3 Bb1 8.Rb1 Bg7=) 7...g5 (7...Qd6 8.f4–/+) 8.Bg2 (8.Nf3 Qd6 9.Nbd2 Bg7=) 8...Qd6 (8...e6–/+) 9.Be4 (9.f4 h5–/+) 9...Ne4 (9...Qh2 10.Bf5 Qg1 11.Ke2 Qh2–+) 10.Rg2 Nd7 11.Bb2 Nb6 12.Nd2 e6 13.Ne4=+ de4 14.Ne2 Nc4 15.Rb1 b5 16.Ng3 Be7 17.Ne4= Qd5 18.Qd3?? h6?? 19.Rh2 f5 20.gf5 ef5 21.Nd2 Nd2 22.Kd2 Bd6 23.Rhh1 0–0–0 24.h4 g4 25.a3 Rde8 26.Rbe1 Kb7 27.h5 g3 28.fg3 Bg3 29.Ref1 Ref8 30.Rhg1 f4 31.ef4+= Bf4 32.Kc2 Bg5 33.Rf8 Rf8 34.Bc1?? Rf2 35.Kd1–+ Qb3?? 36.Ke1+/– Rf6 37.Bg5 hg5 38.Rg5 Qa3 39.Ke2?? Qa2 40.Qd2 Qc4 (41.Kd1 Rf1 42.Kc2 Qa2 43.Kd3 Rf3 44.Qe3 Qc4 45.Kd2 Re3 46.Ke3 Qc3 47.Ke4 Qb4–+; better is 40...Rf2! 41.Kf2 Qd2 42.Kf1 Qg5–+) 0–1. sbderkach (1680) – valerypavlovich (2120), net–chess.com, 2006.

2.e3 c6

(--> 1.b4 c6 2.e3 d5).

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

3.Nf3 Nf6 4.c4 e6 5.a3 Nbd7 6.Nc3 Bd6 7.Bb2 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4 c6 7.Nc3).

3.Bb2

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

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

3.Bb2 Nf6 4.Nf3 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).

3.c4

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

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

3.c4 Nf6 4.Nf3 Bg4 5.Bb2 e6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 Bg4 5.Nf3 e6).

2.e3 Nc6

3.Bb2 Nb4 4.d4 Bf5 5.Nf3 Nc2 6.Kd2 Na1 7.Nc3 Nc2 8.Be2 e5! 9.Ne5 f6 10.Nf3 Bb4 11.Ne1 Bc3 12.Bc3 Ne7 13.Bd3 Na3 14.Qa4 Qd7 15.Qa3 Bd3 16.Nd3 0–0 17.Rb1 b6 18.Qb3 a5 19.e4 Kh8 20.Nf4 de4 21.Ke3 g5 22.Ne6 Rg8 23.Rd1 Nd5 (24.Ke2 Qe6–+) 0–1. gtate (1920) – heyuneverno (1885), net–chess.com, 2004.

3.b5 Na5 4.Nf3 Bf5 5.c4 Nc4 6.Bc4 dc4 7.Nc3 Nf6 8.0–0 Bd3–+ 9.Re1 Nd7 10.a4 g6 11.Bb2 Bg7 12.Nd4 Nc5 13.Qf3 0–0 14.Nd5?? e5 15.Ne2 e4 (16.Nf6 Bf6 17.Qf6 Qf6 18.Bf6 Nb3–+) 0–1. gtate (1850) – gsmelt (2290), net–chess.com, 2003.

3.b5 Nb8

4.Bb2 =.

4.h3 Bd7 5.c4 e6 6.Bb2 b6 7.a4 Bd6?? 8.Bg7+– (8...dc4 9.Bh8+–) 1–0. gtate (1990) – mgokhale (1835), net–chess.com, 2005.

4.h3 e5 5.d4 Bb4 6.Bd2 =.

3.b5 Ne5

4.d4 Nc4 5.Bc4 (5.e4 e6=) 5...dc4 6.Nf3 a6 7.ba6 ba6 (7...Ra6!? 8.Nc3 Nf6=) 8.Nbd2+/– f6 (8...c3 9.Ne4+=) 9.Nc4 (9.c3 Bg4+/–) 9...c6 (9...Bf5 10.Ncd2+/–) 10.0–0 f5 (10...Be6!? 11.Ncd2 Bg4+–) 11.Nfe5 e6 (11...Be6 12.Nc6 Qc7 13.N4e5+–) 12.Qh5 g6 13.Ng6! Threatening mate: Nge5 13...Nf6 (13...hg6 A pinning theme 14.Qh8) 14.Qh4 Rg8 15.Nf8 Rf8 (15...Qd5 16.g3 Qc4+–) 16.Ba3 Rf7 (16...Rg8 17.Nd6 Kd7+–) 17.Nd6 (17.Nd6 Qd6 18.Bd6+–) 1–0. Wall,Bill – DCP, internet, 2001.

4.d4 Ng6 5.Bb2 Bd7 (5...Nf6 6.Bd3=) 6.a4 (6.Nf3 Bf5=) 6...Nf6 7.c4 dc4 (7...e6 8.Nf3=) 8.Bc4 c6 (8...e6 9.Nf3=) 9.Qb3 (9.Nf3 Rc8+=) 9...e6 10.Nf3 Be7 (10...Rc8 11.0–0+=) 11.Nc3 0–0 (11...Rc8 12.Ba3+=) 12.0–0 Nd5 (12...Rc8 13.Ba3+=) 13.Ne4 b6 (13...Rc8 14.Ba3+=) 14.Rfc1 (14.Ba3 Rc8+=) 14...Rc8 (14...f5 15.Nc3+/–) 15.Ned2 (15.Ba3 Ba3 16.Qa3 Rc7+/–) 15...Rc7 16.Bf1 (16.Ba3 Re8+=) 16...Qb8 17.Nc4 Rfc8 18.Nce5 cb5 (18...Ne5 19.Ne5 c5 20.dc5 Bc5 21.Bc4+=) 19.Nd7 Rd7 20.Bb5 (20.ab5 Rc1 21.Rc1 Qd8+=) 20...Rdc7 21.Bc4 Nf6 (21...Qb7 22.Bd3+=) 22.Ng5 (22.Bd3 Rc1 23.Rc1 Rc1 24.Bc1 Qc7+=) 22...Nf8 (22...Ng4 23.h3 Bg5 24.hg4=) 23.h3 (23.Ba6 Rc1 24.Bc1 Rc6=) 23...h6 (23...Qb7 24.Bd3=) 24.Nf3+= Ne4 (24...Bd6 25.Rc2+=) 25.Ba6 (25.Bd3 Qa8+=) 25...Rc1 26.Bc1 Rc7 27.Qd3 (27.a5 Nd7+=) 27...Ng5 (27...Qa8 28.Nd2 Nf6 29.a5=) 28.Nh2 (28.Ng5 Bg5 29.Bd2 e5+=) 28...Bd6 (28...Qd8 29.e4=) 29.Nf1 (29.f4 Ngh7=) 29...Qa8 (29...Ng6 30.Nd2=) 30.f3 (30.a5 ba5 31.Bd2 Bb4=) 30...Ng6 31.Qe2 (31.a5 ba5 32.Bd2 Bb4=) 31...Nh4 (31...Qc6 32.Bd3=) 32.e4 Be7 (better is 32...e5=) 33.Bf4?? (33.a5 ba5 34.Be3 Bb4=) 33...Rd7?? (better is 33...Nhf3 34.Kh1 Nd4–+) 34.Rc1 (34.Bg3 Ng6 35.Rc1 Rd8+=) 34...Qf8 (34...Nhf3 35.gf3 Nh3 36.Kh2 Nf4–+) 35.Bg3+/– Ng6 Black launches an attack 36.Rc8 (36.f4 Nh7 37.f5 ef5 38.ef5 Nh8+=) 36...Rd8+= 37.Rc7 (37.Rd8 Qd8 38.f4 Nh7+=) 37...Bd6= 38.Ra7 (38.Bd6 Qd6 (worse is 38...Rd6 39.Qe3+=) 39.Ra7 Qd4 40.Qf2 e5=) 38...Bg3 39.Ng3 Rd4 40.Rc7 (better is 40.Qc2!?=) 40...Qd6–/+ (40...Ra4?? 41.Rc8+–) 41.Rc8 Kh7 42.Nf1 (42.Kh2 Ra4 43.Bb5 Rb4–/+) 42...Ra4 43.Qb5 (43.Bb5 Rb4 44.Qd3 Qd3 45.Bd3 Nf4–/+) 43...Qd4 44.Kh1 Ne7 (44...Ra2 45.Qe8 Nf4 46.Qh8 Kg6 47.Rg8 Rg2 48.Rg7 Qg7 49.Qg7 Kg7 50.Ne3–+) 45.Rc2 (45.Rb8!?+=) 45...Ra5–/+ 46.Qe2 Ng6 47.Rd2 Qe5 48.Ne3 (48.Ra2!?–/+) 48...Nf4–+ 49.Qf1? (49.Qc4 Nf3! 50.gf3 Qa1 51.Kh2 Ra6 52.Rc2–+) 49...Qc3 50.Rd3 Nd3 (50...Nd3 51.Nd1 Qe1 (51...Ra6? 52.Nc3 Nc5 53.h4+–) 52.Bd3 Qf1 53.Bf1 Ra1–+) 0–1. Zylla,Johannes – Herfort, BS–Kreismeisterschaft, 1992.

4.d4 Ng6 5.c4 =.

4.d4 Ng6 5.Nf3 Nf6 =.

2.e3 d4

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

3.ed4 Qd4 4.c3 Qe4 5.Qe2 Nf6 6.d3 Qe6 7.Nf3+= h6 8.Nd4 Qd5 9.Bb2 Bh3?? 10.c4+– Qh5 11.gh3 e5 12.Nb5 Bb4 13.Bc3 Bd6? 14.c5! a6 15.cd6 ab5 16.dc7 Na6 17.Qe5 Qe5 18.Be5 Nb4 19.Kd2 Nfd5 20.Nc3 f6 21.Nd5 (21.Nd5 Nd5 22.Bg2 fe5 23.Bd5+–; 21.Bg2 fe5 22.Bd5 Nc6+–) 1–0. PawnPower (1605) – JPB, internet, 2007.

3.Qe2 c6 4.Qd3 e5 5.c3 g6 (5...Qf6 6.cd4 Bb4 7.Bb2=) 6.Nf3 f6 (6...Qe7 7.e4= (7.ed4? e4 8.Qe2 ef3 9.gf3 Be6–+)) 7.a3 (7.ed4 Bg4+=) 7...Bf5 8.e4 Be6 (8...Bg4 9.h3 Bf3 10.Qf3+=) 9.b5 (9.cd4!? a5 10.de5 Qd3 11.Bd3 ab4 12.Nd4+/–) 9...a6 (better is 9...c5 10.Qc2 Nd7=) 10.c4 (better is 10.cd4!? ab5 11.de5 Qd3 12.Bd3 fe5 13.Bb2+=) 10...ab5 11.cb5 h5 (11...Nd7 12.bc6 bc6 13.Qc2–+) 12.Nh4 Bf7 13.Be2 c5 14.a4 (14.Qc2 f5 15.Nf3 Qf6=) 14...b6 (14...f5 15.Qg3 f4 16.Qh3–/+) 15.0–0 c4 16.Qf3 d3 17.Bd1 Bb4 18.g3 (18.Bb2 Nh6+=) 18...Nd7 19.Bb2 Nh6 20.Nc3 Bc3 (20...g5 21.Nf5–/+) 21.Bc3+= g5 22.Nf5 g4 23.Qe3 (23.Nd6!? Ke7 24.Nf7 Kf7 25.Qg2=) 23...Nf5+= 24.ef5 Ke7 (24...Bd5!?+=) 25.Bb4 Ke8 26.a5 (better is 26.Re1!?=) 26...ba5–/+ 27.Bc5 Qc7 28.Bd4 Ke7 29.b6? Qd6–+ 30.b7 Rab8 31.Rb1?? Qd4–+ 32.Qd4 ed4 33.Ba4 Nc5 34.Bc6 Kd6 35.Bg2 Kc7 36.Rfe1 Rhe8 37.Re8 Be8 38.Bd5 Nb7 39.Bc4 Nd6 40.Rb8 Kb8 41.Bd3 a4 0–1. Willi_weizenkeim – Thrustnicely, playchess.de, 2005.

3.Qe2 Nc6 4.b5 Nb4 5.d3 =.

3.e4 e5 4.b5 Nf6 5.d3 Bd7 6.a4 Bb4 7.Bd2 Bd2 8.Nd2=+ 0–0 9.Be2 Qc8 10.Ngf3= Bg4 11.h3 Bf3=+ 12.Nf3 Qd7 13.Ne5+= Qd6 14.Nc4 Qb4 15.Qd2+/– Qc3? 16.Qc3+– dc3 17.Ra3 a6 18.Rc3 ab5 19.ab5 Ra1 20.Kd2?? Rh1–+ 21.Na5 b6 22.Nb3 Rg1 23.Bf3 Nbd7 24.Rc7–/+ Rb1 25.Nd4 Ne5 26.Bd1 Rb8 27.f4 Ned7?? 28.e5+/– Rb4?? 29.Nc6+– Rb5 30.Nb8 1–0. mic (2100) – islanderfan (1815), net–chess.com, 2008.

2.e3 Qd6

3.a3= a5 4.b5 h5 (4...e5!?=) 5.Bb2 Bg4 6.Nf3 Nd7 7.c4 c6 (7...e5 8.cd5 Ngf6 9.d4=) 8.h3 (8.d4 Ngf6+=) 8...Bf3 9.gf3 (9.Qf3 e5+=) 9...Ngf6= 10.bc6 (10.d4 e5=) 10...bc6 11.cd5 (11.d4 g6=) 11...cd5 (11...Nd5 12.Nc3=) 12.Bb5 (12.Nc3 e6=) 12...Kd8 (12...Rb8 13.Qa4 Qc7 14.Rg1=) 13.Nc3 Nb6 (13...e6 14.Rb1=) 14.Na4 (14.d3 e5=) 14...Nfd7 (14...Nc4 15.Bd4 Rb8 16.Bc4 dc4 17.Nb2+=) 15.Qb3 (15.Rc1 Na4 16.Qa4 Nc5+=) 15...Na4= 16.Qa4 Nb6 (16...Nc5 17.Qc2 e6 18.d4=) 17.Qd4+= e5 (17...Rh6!?+=) 18.Qe5+/– Qe5 19.Be5 Nd7 (19...Nc4!? 20.Bd4 Na3 21.Bb6 Kc8 22.Rc1 Kb8+/–) 20.Bd4+– Rc8 (20...Rb8 21.Bc6 Nf6 22.Rg1+–) 21.Bc3 Rc3 (21...Bd6 22.Ba5 Ke7 23.a4+–) 22.dc3 Nb6 23.Ke2 (23.Rg1 g6+–) 23...Kc7 (23...Bd6 24.Rhb1+–) 24.c4 dc4 (24...Nc4 25.Bc4 dc4 26.Rhc1+–) 25.Bc4! f6 (25...Nc4 26.Rhc1 A pinning theme) 26.Bf7 (26.Rhc1 Bd6+–) 26...Bd6 (26...g5 27.Rhd1+–) 27.Rhg1 (27.f4 g5 28.fg5 fg5+–) 27...g5 28.Rgc1 (28.Rgd1 h4+–) 28...Kb7 (28...Kd7 29.Bg6+–) 29.Rd1 (29.Bg6 a4+–) 29...Be5 30.Rab1 Ka6 31.Rdc1 h4 (31...Rh7 32.Rc6 Rf7 33.Rbb6 Ka7 34.Rb5+–) 32.Rc6 Rb8 33.Bc4 Ka7 34.Bd3 (34.Bd3 a4 35.Rb4+–) 1–0. Heinola – Pietinen, Vantaa, 1984.

3.Ba3 e5 4.b5 Qf6 5.Bf8 Kf8 6.d4 ed4 7.ed4 a6 8.Nf3 Qe7 9.Qe2 ab5 10.Qe7 Ne7 11.Bb5 Bf5 12.Kd2 c6 13.Be2 f6 14.Nc3 Nc8 15.Rhe1 Nd6 (15...Nd6 16.Nh4 Kf7=). Andersen,Henrik N (1810) – Menghi,Carlo (2235), IECG, 1998.

3.b5 a6 4.ba6 (4.Ba3 Qb6=) 4...Na6 5.c4 (5.Nf3 e5=) 5...d4 (5...Nb4 6.Qb3+=) 6.Nf3 e5 (6...d3 7.Ba3 Qf6 8.Nc3+=) 7.Na3 (7.ed4 ed4 8.Qe2 Be7+=) 7...c5 (7...de3!? 8.de3 Qd1 9.Kd1 e4–/+) 8.Nb5= Qf6 (8...Qe7 9.d3=) 9.Bb2 (9.ed4 ed4 10.Rb1 Be7=) 9...Be7 (9...Bg4 10.h3 Bf5 11.ed4 ed4 12.Qe2 Be6 13.a3=) 10.Bd3 Qe6 11.ed4 (11.Qa4 Kd8 12.Be4 f5+=) 11...ed4 12.Qe2 (12.Be2 d3 13.Bg7 de2+–) 12...Qe2 (12...Nf6 13.0–0=) 13.Be2 f6 (13...Nf6 14.0–0=) 14.0–0= Nh6 (14...Kd8 15.Rfe1+=) 15.d3 (15.Rfe1 Bf5=) 15...Bg4 (15...Kd8 16.Bc1=) 16.h3 (16.Bc1 f5=) 16...Bd7= 17.Nd2 (17.Bc1 Nf5=) 17...Bc6 (17...Bb5 18.cb5 Nb4 19.a3=) 18.Bf3 (18.Rfe1 f5=) 18...Kf7 (18...Kd7 19.Bc6 bc6 20.Nd4 cd4 21.Bd4–+) 19.a3= Rhd8 (19...Bf3 20.Nf3 Nf5 21.Rab1=) 20.Rfe1 g6 (20...Bf3 21.Nf3 Re8 22.Rab1=) 21.Re2 Bf8 (21...f5 22.Rae1 Re8 23.Bc1=) 22.Rae1 (22.Ne4 Nf5 23.g4 Nh4=) 22...Bf3 23.Nf3 (worse is 23.gf3 Nf5+=) 23...Re8 24.Bc1 Re2 25.Re2 Nf5 26.Bf4 g5 27.Bh2 (27.g4 gf4 28.gf5 Re8=) 27...Rd8 (27...h5 28.g4 hg4 29.hg4=) 28.Rb2 (28.g4 Ng7+=) 28...Rd7 (28...Ra8 29.g4 Nh6 30.Bd6+=) 29.g4 Ng7 30.Nd2 (30.Bg3 h5+=) 30...Ne8 (30...Kg6 31.Ne4+=) 31.Ne4 (31.f4 Re7 32.Ne4 Kg6+=) 31...Ke6 (31...Kg6 32.f4+=) 32.Na7 (32.f4 Be7+/–) 32...Be7 (32...Kf7 33.Nc8+/–) 33.Rb6+/– Kf7 34.Nc8 (34.Nc6 h6+/–) 34...Bf8 35.Bd6 (35.Bd6 Kg7 36.Bf8 Kf8 37.Nf6 Nf6 38.Rf6 Kg7 39.Rb6+–) 1–0. Campos,Jose Felix (2205) – Lida Garcia,Fernando (2140), Torre Blanca–A, 2002.

3.b5 c5 4.Bb2 Nf6 5.Nf3 Nbd7 6.Be2 (6.c4 e5+=) 6...e5 7.0–0 Qc7 8.c4 d4 9.g3 (9.Nh4!?=) 9...e4 (9...d3 10.Bd3 e4 11.Be4 Ne4 12.Re1–/+) 10.Ne1 d3 11.Bg4 Bd6 (11...Be7 12.Bd7 Bd7 13.f3+=) 12.f4 (12.Bd7!? Bd7 13.Bf6 gf6 14.Nc3=) 12...0–0 (12...Ng4 13.Qg4 Ne5 14.Qg7+–) 13.a4 (13.Bf5 Re8–/+) 13...Ng4 14.Qg4 Threatening mate... how? 14...Ne5 15.Qd1? (better is 15.Qh4 Ng6 16.Qh5–/+) 15...Nc4–+ 16.Bc3 f5 17.Na3 Na3 18.Ra3 Be6 19.Ra1 b6 20.Ng2 Be7 (20...a6 21.Qb1–+) 21.Be5 Qd7 22.Qc1 Bf6 23.Qc3 Be5 24.Qe5 (24.fe5 Rfe8–+) 24...Qd5 (24...Rfe8 25.Qc3–+) 25.Qd5 Bd5 26.Rfc1 (26.a5 a6 27.ba6 b5–+) 26...c4 (26...a6 27.h3–+) 27.Rc3 (27.h3 a6 28.Rcb1 a5–+) 27...a6 28.Rca3? (better is 28.Rb1–+) 28...ab5 29.ab5 Ra3 (29...c3 30.Ra6 cd2 31.Rd1–+) 30.Ra3 Rc8 31.Kf2 Rc5 32.Ra8 (32.Nh4 g6 33.Ra7–+) 0–1. Del Val,Josefa (1795) – Curtacci,Sergio (2215), II Open internazionale, 2008.

3.b5 c6 4.c4 Nf6 5.Qb3 (5.d4 cb5 6.cb5 Bf5=) 5...Qd8 (5...e5 6.d4+=) 6.Ba3 (6.d4 e6=) 6...g6 (6...e5 7.Bf8 Rf8 8.cd5 Qd5 9.Qd5 Nd5 10.Nc3=) 7.Nc3 Bg7 8.Rb1 0–0 9.Nf3 a6 (9...Bf5 10.Rb2=) 10.bc6+= bc6 11.Bd3 (11.Qb6 Qe8+=) 11...Re8= 12.Ne5 d4 13.Na4 de3 14.Nb6? (better is 14.fe3!? Nfd7 15.Nf3=) 14...ed2–/+ 15.Ke2 Ra7 16.Nc8 Qc8 17.Qb8 Qb8 18.Rb8 Rb8 19.Nc6 Rbb7 20.Na7 Ra7 21.f4 (21.Kd2 Ng4 22.Ke2 Bd4=) 21...Bh6 (21...Nh5!? 22.Kd2 Nf4–/+) 22.g3= e5 (22...g5 23.fg5 Bg5 24.Bb4=) 23.Bb2 (23.Rb1 Ra8 24.Bb2 Nd7 25.Kd2 ef4+=) 23...Re7 (23...Nd7 24.Rd1+= (worse is 24.fe5 Ne5 25.Be5 Re7–/+; worse is 24.Be5 Ne5 25.fe5 Re7–/+)) 24.Kd2= (worse is 24.Be5 Ng4–/+; worse is 24.fe5 Ng4–/+) 24...Ng4 (24...Re6 25.Re1 Nd7 26.Rf1=) 25.Re1 Nh2 26.Kc2 (worse is 26.Re5 Nf3 27.Kc2 Ne5 28.Be5 Bg7–/+) 26...Ng4 27.Ba3 (27.c5!? Rc7 28.Be5 Rc5 29.Bc3=) 27...Re6+= 28.f5 Rc6 29.Kb3 Ne3 Attacks the isolani on c4 (29...gf5 30.Bf5 Ne3 31.Be4+=) 30.fg6 hg6 31.Be4 Rc8 32.c5 Rb8 33.Kc3 f5 (better is 33...Rd8+=) 34.Bc6 (better is 34.Bc1 Ng4 35.Bh6 fe4 36.Bd2=) 34...e4–/+ 35.Bc1 Bg7 36.Kd2 Rc8 37.Ke3 (37.Bb7 Nc4 38.Kd1 Rc5 39.Ba6 Kf7–+) 37...Rc6 38.Ba3 Kf7 39.Rd1 Ke6 40.Bb4 Be5 41.g4 Rc7 42.Rd8 Rh7 Black gets deadly initiative 43.a4 Rh3 44.Ke2 Rh2 45.Ke3 Rc2 46.Re8 (46.Bd2 Rc5 47.Rg8 Kf6–+) 46...Kd5 47.gf5 gf5 Do you see the mate threat? 48.Rd8 Kc4 49.Bd2 (49.Be1 f4 50.Ke4 Re2 51.Kf3 Re1–+) 49...Bf6 (49...Bf6 50.Rd7 Bg5 51.Ke2 Bd2–+) 0–1. Andersson,Lars H – Andersson,Tore, corr SSKK 1–442, 1992.

3.b5 e5 (--> 1.b4 e5 2.b5 d5 3.e3 Qd6).

3.Nc3 e5 4.Nf3 (4.b5 Nd7+=) 4...c6 Prevents intrusion on b5 5.a3 Bf5 (5...Bg4 6.h3 Bf3 7.Qf3+=) 6.Bb2 Nd7 7.Na4 (7.h3 h5+=) 7...Ngf6 (better is 7...Bg4 8.Qc1 Qf6+=) 8.c4?? gives the opponent new chances (better is 8.Nc5 is a viable option 8...Qb8 9.Nb3=) 8...dc4–/+ 9.Bc4 b5 10.Be2 (10.Bf7!? Kf7 11.Nc5–/+) 10...ba4–+ 11.Qa4 Nb6?? Black threatens to win material: Nb6xa4. throwing away the advantage (better is 11...Be6–+ and Black gets the upper hand) 12.Qa5+= Can e5 get defended?. White threatens to win material: Qa5xe5 12...Nfd7 13.Ne5 Ne5 14.Be5 Qe6 (14...Qg6 15.Bf1+=) 15.Rc1 f6 Black threatens to win material: f6xe5 (15...Nd7!? should be examined more closely 16.Bg3 Be7+=) 16.Bd4 White threatens to win material: Bd4xb6 (16.Bc7 Nd5 17.Rc6 Qe4+/–) 16...Rc8 (16...Nd7 17.Qc7 Rd8 18.Rc6+– (18.Ba7?! Ne5=)) 17.Qa7 (17.Bb6 ab6 18.Qb6 Qd5+=) 17...Nd5 (17...Nd7 18.Bh5 g6 19.Bd1+=) 18.f3 (18.Ba6 Rd8+=) 18...Bg6 (better is 18...Be7!?+= is worth consideration) 19.Ba6+/– Rd8 20.b5?? White lets it slip away (20.Qb7 Qd7 21.Rc6 Be7+/–) 20...c5? (20...Ba3 21.Rc6 Bd6=) 21.Bc5?? with this move White loses his initiative. (21.Bb7 Rd7 (21...cd4 22.Bc6 Rd7 23.Bd7 Qd7 24.b6 de3 25.de3 Qa7 26.ba7=) 22.Bc5 Bc5 23.Qc5 Nf4+/–) 21...Bc5?? not a good decision, because now the opponent is right back in the game (better is 21...Nf4! and Black can hope to live 22.b6 Bc5 23.Qg7 Ng2 24.Kf1 Qb6 25.Qh8 Bf8=) 22.Qc5+/– (22.Rc5?? Ne3 Decoy: f1 23.Rc1 Ng2 24.Kf1 0–0–+) 22...Qd6 (22...Nb6 23.Bb7 Kf7 24.f4+/–) 23.Qc6 (23.Bb7 Ne7 24.d4 Qc5 25.Rc5 Rd7+–) 23...Qc6 24.bc6 (better is 24.Rc6!? 0–0 25.Ke2+/–) 24...Nc7+= Black threatens to win material: Nc7xa6 25.Bb7 The bishop dominates (25.Bf1+=) 25...Bd3 Black inhibits 0–0 (25...Rd3!?= should be investigated more closely) 26.Kf2 Ke7 (26...Rd6 27.Rc3+/–) 27.Rc3 Nb5? (better is 27...Rd5+/–) 28.c7+– Nc3 29.cd8Q (29.dc3 is no comparison 29...Rc8 30.Bc8 Rc8+=) 29...Kd8 (29...Rd8 30.dc3 Rb8 31.Rd1+–) 30.dc3 (30.Rc1!? might be the shorter path 30...Kc7 31.Bd5 Bf5+–) 30...Kc7 31.Bd5 Rd8 (31...Rb8 32.Kg3+–) 32.e4 Kb6 (32...Rb8 33.Ke3 Ba6 34.Rd1+–) 33.c4 (better is 33.Ke3 seems even better 33...Ba6 34.c4+–) 33...Rc8 (33...Kc5+–) 34.Rc1 f5 (34...Kc5 is no salvation 35.Ke3 Be4 36.Ke4+–) 35.Ke3 fe4 36.fe4 (36.fe4 Be4 37.Be4+–) 1–0. Deb,Akash (1915) – Ho,Matthew (2045), Sunnyvale LERA–ch, 2002.

3.Nc3 Nf6 4.Nb5 Qd8 5.Nf3 =+.

3.a3 e5

4.Bb2 (--> 1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.e3).

4.c4 c6 5.Bb2 (5.cd5 cd5 6.d4 e4=) 5...Be6 6.cd5 cd5 (6...Bd5 7.Nc3=) 7.Nf3 (7.d4 e4=) 7...f6 (7...Nc6 8.b5 Nce7 9.Be5+/–) 8.Nc3 (8.Bb5 Nc6=) 8...a6 (8...Nc6 9.d4=) 9.Qa4 (9.d4 Nc6=) 9...Bd7 (9...Nd7 10.Rc1 Rc8 11.d4=) 10.b5 (10.Qa5 Ne7=) 10...Ne7 11.Rc1 Nc8 12.Qh4 (12.d4 Nb6 13.Qb3 Bf5=) 12...g6 (better is 12...Bf5=) 13.Nd5 Qd5 (13...g5 14.Qh5 Kd8 15.Nf6 Qf6 16.Be5+–) 14.Qf6 Qg8 (14...e4 15.Bc4 (15.Qh8?! ef3 16.Bg7 Qd6+/–) 15...Qc4 16.Rc4 (16.Qh8?! Qb5 17.Bg7 Qf5+=) 16...ef3 17.Qh8 fg2 18.Rg1+–) 15.Be5 (15.Qe5 Be7+–) 15...Bg7 (15...Ba3 16.Ra1 ab5 17.Qh8 Qh8 18.Bh8+–) 16.Qg7 Qg7 17.Bg7 Rg8 18.Bb2 (18.ba6 Na6 19.Be5 Ke7+–) 18...Nd6 (18...ab5 19.Bb5 Nd6 20.Be2+–) 19.ba6 (19.b6 Nc6+–) 19...ba6 (19...Na6 20.Be2+–) 20.Be5 (better is 20.d4+–) 20...Nb5 (20...Ke7+–) 21.Bc4 Rf8 22.Bd5 (22.Bd5 Nc6 23.Rc6 Bc6 24.Bc6 Ke7 25.a4+–) 1–0. Campos Calvo Sotelo,Juan (2015) – Lopez Benito,Manuel, Concello de Poio op 1st, 2001.

4.c4 Be6 5.cd5 Bd5 6.Nc3 =.

4.c4 Nf6 5.c5 Qe6 6.Nf3 e4 7.Nd4 c6?? (Better is 7...Qd7=) 8.Ne6+– Be6 9.Bb2 Nbd7 10.Bf6 Nf6 11.h3 (11.d4 ed3 12.Bd3 Be7+–) 11...Be7 12.d4 0–0 13.g4 (13.Be2 Rfe8+–) 13...b6 14.g5 Nd7 15.h4 a5 16.Nc3 ab4 17.ab4 unclear. jartug – AllKnighter, ChessWorld.net, 2003.

4.Nf3 Nf6 =+.

3.a3 Nf6

4.Bb2 e5 (--> 1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.e3 Nf6).

4.Bb2 e5 5.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.Nf3 Nd7 5.e3 Ngf6).

3.b5 Nf6

4.d4 e5 5.c4 Bg4 6.Be2 Be2 7.Ne2 Qb4 8.Nd2= dc4 9.a3 Qb5=+ 10.0–0 Bd6–/+ 11.Nc3 Qa6 12.a4 c6 13.a5 0–0 14.Qa4 ed4 15.ed4 b5 16.Qc2 b4 17.Nce4 Ne4 18.Ne4 b3 19.Qc3–/+ Be7 20.Bb2 Nd7 21.d5 f6 22.Rfe1?? cd5–+ 23.Ng5 Ne5 24.Nf3 Nf3 25.Qf3 Bc5 26.Re7?? Be7–+ (27.Qd5 Kh8–+) 0–1. gtate (1980) – awhalley (2090), net–chess.com, 2005.

4.d4 Bg4 5.Be2 Be2 6.Ne2 =+.

4.Nf3 +=.

2.e3 e5

3.Ba3 (--> 1.b4 e5 2.Ba3 d5 3.e3).

3.c3 (--> 1.b4 e5 2.c3 d5 3.e3).

3.Nc3 c6 4.g4 Bb4 5.a3 Be7 6.Nf3 Bg4 7.h3 Bh5 8.e4 de4 9.Ne4 Qd5 10.Bb2 Qe4 11.Be2 Bf3 12.d3 Bb4! 13.c3 Be2 14.Qa4 Bd3 15.Kd2 Qe2 16.Kc1 Be7 17.Qd1 Qe4 18.Re1 Bg5 19.Re3 Be3 20.Qd2 Bd2 21.Kd2 Qe2 (22.Kc1 Qc2#) 0–1. jfacello – amtrack, net–chess.com, 2002.

3.c4 Bb4–/+ 4.Qa4 Nc6 5.a3 Ba5 6.Nf3 e4 7.Ne5 Nge7–/+ 8.cd5 Qd5 9.Bb2 0–0 10.Bc4 Qd6 11.Bc3? Bc3 12.Nc3?? Ne5 13.Ne4 Qg6 14.0–0–0 Nc4 15.Qc4 Be6 16.Qc7 Rac8 17.Qc8 Rc8 18.Kb2 Qe4 19.f3 Qc2 20.Ka1 Qa2 0–1. MC Q – JF_, ChessWorld.net, 2004.

3.c4 dc4 4.Bc4 Nc6 5.b5 Nce7 6.a4 Nf6 7.Bb2 Ng6 8.Na3 Bb4 9.Nf3 e4 10.Nd4 0–0 11.Qb3 Bc5 12.Ne2 Bf5 13.Rc1 Be7 14.Ng3 Nh4 15.Nf5 Nf5 16.d4 ed3 17.Bd3 Nd6 18.0–0 Re8 19.Rcd1 c6 20.Qc2 Rc8 21.Bf5 cb5 22.Bc8 Qc8 23.Qc8 Nc8 24.Nb5 Nb6 25.a5 Nc4 26.Bc3 Ne4 27.Be1 a6 28.Nc7 Rc8 29.Nd5 Bc5 30.Rd4 Bd4 31.Ne7 Kf8 32.Nc8 Bc5 33.h3 Ke8 34.f3 Be3 35.Kh1 Ned2 36.Bd2 Bd2 37.Rb1 Kd8 38.Nb6 Nb6 39.ab6 Be3 40.Kh2 Kd7 41.Rb3 Bc5 42.Kg3 Kc6 43.Kf4 Kd7 44.Rd3 Kc6 45.Ke5 Bb4 46.Kd4 Bd6 47.Kc4 Bc5 48.Rd8 Bd6 49.Rg8 Be5 50.Rf8 f6 51.Rf7 g6 52.Rh7 Kb6 53.Kd5 Bc3 54.Rg7 g5 55.Rf7 Bb2 56.Re7 f5 57.Rf7 f4 58.Rf5 Kc7 59.Rg5 b5 60.h4 Kd7 61.h5 Ke7 62.h6 Kf7 63.h7 Bg7 64.Ke4 b4 65.Kd3 b3 66.Rh5 b2 67.Kc2 Bh8 68.Kb1 Kg6 69.Rh4 a5 70.Kc2 a4 71.Rf4 Kh7 72.Ra4 Kg6 73.Rf4 Bc3 74.Rc4 Be5 75.Rc5 Kf6 76.Rb5 Ke6 77.Kd3 Kd7 78.Ke4 Kc6 79.Rb3 Bf6 80.g4 Bg7 81.Kd3 Kd5 82.Rb5 Kc6 83.Rb3 Kd5 84.f4 Bd4 85.f5 Bf6 86.Rb5 Kc6 87.Rb4 Kc5 88.Rb8 Be5 89.Rb3 Kd5 90.Kc2 Ke4 91.Rb4 Kd5 92.g5 Kc5 93.Rb2 Bb2 94.Kb2 Kd6 95.g6 Ke7 96.Kc3 Kf6 97.Kd4 Ke7 98.Ke5 Ke8 99.Ke6 Kf8 1–0. NN – COMP, 1987.

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

3.c3 d4 (--> 1.b4 e5 2.c3 d5 3.e3 d4).

3.c4 Nf6 4.cd5 Nd5 5.a3 Be6 6.Bb2 Nd7 7.Nf3 Bd6 8.Be2 0–0 9.0–0 Qe7 10.d4 e4 11.Ne5 (11.Nfd2 f5+=) 11...N7b6 (better is 11...Qg5!? 12.Nd7 Bd7–/+) 12.Nd2= Rad8 13.Ne4? (better is 13.Qc2!? f6 14.Nec4=) 13...Be5–/+ 14.de5 Ne3! 15.fe3 (15.Qc1 Nf1 16.Bf1 Bd5–/+) 15...Rd1 16.Rad1? (better is 16.Rfd1!? Bb3 17.Rd2–+) 16...Bc4–+ 17.Rf2 Be2 18.Re2 Nc4 19.Bd4 b6 20.Rf1 (20.Nc3 c6–+) 20...Ne5 (better is 20...Na3 21.Ref2 Qb4–+) 21.Rf4 (21.Rc2–+) 21...Ng6 22.Nf6 (22.Bb2 Re8–+) 22...gf6 23.Rf6 Rd8 (better is 23...c5 24.Ba1 cb4 25.ab4 Rc8–+) 24.Bc3 (24.Ref2 Ne5 25.g3 c5 26.Be5 Qe5 27.bc5 bc5–+) 24...Rd1 (better is 24...Rd3 25.Bd4 Rd4 26.Rf5–+) 25.Kf2 Ne5 26.Rf4 (26.Be5 Qe5 27.Rf4–+) 26...Nd3 27.Kf3 (27.Kg3 Nf4 28.Re1 Re1 29.Bd2 Qg5 30.Kf2 Qg2 31.Ke1 Qe2) 27...Rf1 28.Kg3 (28.Kg4 Qe6 29.Kg3 Nf4 30.ef4 Qe2 31.h3 Qe3 32.Kh4 Rf4 33.g4 Rf3 34.g5 Qe4 35.Kh5 Rh3) 28...Nf4 29.b5 (29.Bf6 Ne2 30.Kh3 Rf6 31.Kg4 Qe4 32.Kh5 Rf5 33.Kh6 Qe3) 29...Qg5 0–1. Lourenco,Eva – Jackson,L (1925), 122nd ch–NZL Open, 2015. (=1.e3 e5 2.b4 d5)

3.d4 Nc6?? 4.de5 (better is 4.b5!? Nce7 5.de5+=) 4...Ne5=+ 5.e4 (5.a3 Nf6=+) 5...Bb4 (5...de4!? 6.Qd8 Kd8–/+) 6.c3=+ Bc5 7.f4 (7.Qd5 Qd5 8.ed5 c6 9.dc6 Nc6=+) 7...Qf6 (7...Ng4 8.Qd5 Qd5 9.ed5 Nf2–+) 8.fe5?? (better is 8.ed5 Ng4 9.Qe2 Qe7 10.Nh3–/+) 8...Qf2# 0–1. nacca – ludwig, net–chess.com, 2003.

3.Be2 Bb4–/+ 4.Nf3 Nc6 5.0–0 Nf6 6.Bb2 Bd6 7.Nc3 0–0 8.d4 ed4 9.ed4 Bg4 10.h3 Bf3 11.Bf3 Ne7 12.Nb5 a6 (12...Bf4 13.Re1–/+) 13.Nd6 Qd6 14.a4 Nf5 (14...Rfe8 15.Rb1–/+) 15.Qd3 (15.Ba3 Qf4 16.Bf8 Rf8=) 15...Nh4 (better is 15...Qd7–/+) 16.c4? (better is 16.Ba3!? Qf4 17.Bf8 Nf3 18.Qf3 Qf3 19.gf3 Kf8 20.Rfe1=) 16...Nf3 (16...dc4!? 17.Qc3 Nf3 18.Qf3–+) 17.Qf3–/+ b6 (17...Rfe8 18.c5 Qc6 19.a5–/+) 18.cd5 (better is 18.Ba3!? c5 19.Rfd1=) 18...Qd5 19.Qd5 Nd5 20.Ba3 Rfe8 21.g3 (21.Rfe1 Re1 22.Re1 b5–+) 21...Re2 22.Kg2 Ne3?? (better is 22...Rd2 23.Kf3 Rd4–+) 23.Kg1?? (better is 23.Kf3 Nf1 24.Ke2=) 23...Nf1–+ 24.Kf1 Rae8 (24...Rd2 25.Rc1–+) 25.Kg2 (25.Rc1 Ra2 26.Rc3 Rd8–+) 25...Rd2 26.Bc1 Rd4 27.Bb2 (27.Be3 Rd7–+) 27...Rd2 28.Bc3 Rc2 29.Be1 Ree2 30.Kf3 Ra2 31.Ra2 Ra2 (31...Re1?! 32.a5 b5 33.Rc2–+) 32.Kg4 (32.a5 b5 33.Bb4 Ra4–+) 32...Kf8 33.h4 Ke7 34.Bb4 Ke6 35.f4 Ra4 36.Bf8 Kf6 37.h5 b5 38.h6 (38.Kf3 b4 39.Ke4 b3 40.Kd3 Ra5–+) 38...gh6 39.Bh6 (39.Kh5 Ra1 40.Kg4 h5 41.Kf3 a5–+) 39...b4 40.Bg5 Kg7 41.Kf5 Ra5 42.Kg4 Rg5! 43.Kf3 Rg3! 44.Kg3 b3 45.Kf3 0–1. Pieleck,Kerstin – Staats,Carsten, RSX9E – A00 – Sokolsky–1, 2002.

3.e4? d4 4.Bc4 (4.Nf3 Bb4 5.Ne5 Qe7–/+) 4...Nf6 (4...Bb4 5.c3 dc3 6.Qa4 Nc6 7.dc3–/+) 5.d3 (5.Nf3 Bb4 6.Ne5 0–0+=) 5...Nc6 (5...Bb4 6.c3 Bd6–/+) 6.Bg5? (6.a3 a6+=) 6...Be7 (6...Bb4 7.Bd2–+) 7.Bf6 (7.a3 h6 8.Bf6 Bf6+=) 7...Bf6 (7...Bb4 8.c3 dc3 9.Bd8 c2 10.Nd2 cd1Q 11.Rd1 Nd8 12.Ngf3–/+) 8.Qf3? (8.a3 0–0+=) 8...0–0 (8...Nb4 9.Bb3–+) 9.g4? (9.a3 Bd7+=) 9...Bd7 (9...Nb4 10.Kd1–+) 10.h3 (better is 10.a3!?–/+) 10...Nb4–+ 11.Na3 a6 12.h4 Bh4 13.Rb1 c5 14.Ne2 a5 15.Qh3 b5 16.Bb5–/+ Bb5 17.Nb5 Nc2 18.Kf1?? a4?? 19.Ng3?? Qf6 20.Nf5 Ne3?? 21.fe3+– de3? 22.Qe3 Bg5+/– 23.Qc5 Rac8? 24.Nc7?? g6 25.Rb6 Qd8–/+ 26.Ke2?? Rc7–+ 27.Qd6 Rc2 28.Kf3 Ra2 29.Qd8 Bd8 30.Nh6 Kg7 31.Rb5 a3 32.Re5 Rb2 33.g5 a2 34.Ra1 Bb6 35.Kg4 Rg2 36.Kh3 Rf2 37.Ng4 Rf3 38.Kh4 Rd3?? 39.Ra2–/+ Rf3 40.Rd5 Bc7 41.Nf6? Rb8 42.Rd7–/+ Bg3 43.Kg4 Rc3?? 44.Raa7 Rf8 45.Ne8 Kh8 46.Rf7 Rf7 47.Rf7+/– Kg8 48.Rf6?? Be5 49.Re6= Bb8 50.Nf6 Kh8?? 51.Re8+– Kg7 52.Rb8 Rc4 53.Rb7 Kh8 54.Rh7 1–0. karlsdad – pieeater, ChessWorld.net, 2012.

3.e4? de4 4.Bb2 –/+.

3.f3 Nf6 4.f4 (4.a3 a5–/+) 4...e4 (4...ef4!? 5.ef4 Bb4–+) 5.Ba3 Bd6 6.b5 0–0 7.Bd6 Qd6 8.a3 a6 9.ba6 b6 10.a7 Ra7 11.Nc3 (better is 11.Ne2–/+) 11...d4?? (better is 11...Ra3 12.Nb5 Ra1 13.Qa1 Qd7–+) 12.Ne4?? (12.Nb5 Bg4 13.Nd6 Bd1 14.Nb5+– (worse is 14.Rd1 cd6 15.ed4 Ra3+=; worse is 14.Kd1 cd6 15.ed4 Ra5+=)) 12...Ne4–+ 0–1. Fuller,Christopher – Mitra,Rian, WCCF, 2005.

3.Nf3 (--> 1.b4 d5 2.Nf3 e5 3.e3).

3.Qh5 Nc6 4.Bb5 Bd6 5.Bb2 –/+.

3.Qh5 Nd7!? –/+.

3.a3

3.a3 (--> 1.b4 e5 2.a3 d5 3.e3).

3.a3 a5 4.Bb2 Nd7 (--> 1.b4 e5 2.a3 d5 3.Bb2 Nd7 4.e3 a5).

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

3.a3 Bd6 4.c4 c6 5.Bb2 Nf6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 c6).

3.a3 Bd6 4.c4 c6 5.Bb2 Nf6 6.cd5 cd5 7.Nf3 Nbd7 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6 6.c4 c6 7.cd5 cd5).

3.a3 Be6 4.Bb2 Bd6 5.Nf3 f6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Be6 5.Nf3 Bd6).

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

3.a3 Nf6 4.Bb2 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.e3 Nf6).

3.a3 Nf6 4.Bb2 Bd6 5.c4 dc4 6.Bc4 0–0 7.Nf3 Nbd7 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6 6.c4 dc4 7.Bc4 0–0).

3.a3 Nf6 4.Bb2 Bd6 5.c4 c6 6.Nf3 Nbd7 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6 6.c4 c6).

3.a3 Nf6 4.c4 c6 5.Bb2 Bd6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 c6).

3.Bb2

3.Bb2 (--> 1.b4 e5 2.Bb2 d5 3.e3).

3.Bb2 Bb4 4.Be5 f6 5.Bb2 (--> 1.b4 e5 2.Bb2 d5 3.Be5 f6 4.Bb2 Bb4 5.e3).

3.Bb2 Bb4 4.Be5= Nf6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 d5).

3.Bb2 Bb4 4.Be5= Nf6 5.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 d5).

3.Bb2 Bb4 4.Be5= Nf6 5.Nf3 0–0 6.Be2 Re8 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 Re8 6.Be2 d5).

3.Bb2 Bb4 4.Be5 Nf6 5.Nf3 0–0 6.Be2 Re8 7.0–0 c5 8.d3 Nc6 9.Bb2 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 d5 6.Be2 c5 7.0–0 Nc6 8.Bb2 Re8 9.d3).

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

3.Bb2 Nc6 4.b5 Na5 (--> 1.b4 d5 2.Bb2 Nc6 3.b5 Na5 4.e3 e5).

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

3.Bb2 Nd7 4.a3 (--> 1.b4 e5 2.a3 d5 3.Bb2 Nd7 4.e3).

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

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

3.Bb2 Nd7 4.b5 Ngf6 5.c4 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 Nbd7).

3.Bb2 Nd7 4.b5 Ngf6 5.Nf3 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6).

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

3.Bb2 e4 (--> 1.b4 e5 2.Bb2 e4 3.e3 d5).

3.Bb2 e4 4.d3 Nf6 5.a3 (--> 1.b4 e5 2.Bb2 e4 3.e3 d5 4.a3 Nf6 5.d3).

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

3.Bb2 f6 4.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3).

3.Bb2 f6 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).

3.Bb2 f6 4.b5 Bd6 5.d4 e4 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.d4 e4 5.e3 Bd6).

3.Bb2 f6 4.b5 Be6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6).

3.Bb2 Nf6 4.Be5 Bb4 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 d5).

3.Bb2 Nf6 4.Be5 Bb4 5.c3 Be7 6.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 d5 6.c3 Be7).

3.Bb2 Bd6

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

4.a3 f6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Bd6).

4.b5 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3).

4.c4 c6 (--> 1.b4 c6 2.c4 d5 3.e3 e5 4.Bb2 Bd6).

4.c4 c6 5.b5 Nf6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 c6).

4.c4 c6 5.b5 Nf6 6.Nf3 Qe7 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Qe7 5.e3 Nf6 6.c4 c6).

4.Nf3 Nd7 (--> 1.b4 d5 2.Bb2 Nd7 3.e3 e5 4.Nf3 Bd6).

4.Nf3 Nd7 5.a3 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3).

4.Nf3 Qe7 5.a3 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 Qe7 5.e3).

4.Nf3 Qe7 5.a3 Nf6 6.c4 c6 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 c6 6.Nf3 Qe7).

4.Nf3 Qe7 5.b5 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Qe7 5.e3).

4.Nf3 f6 5.b5 Be6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3 Bd6).

3.b5

3.b5 (--> 1.b4 e5 2.b5 d5 3.e3).

3.b5 a6 4.Bb2 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 a6).

3.b5 c6 4.Bb2 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 c6).

3.b5 c6 4.c4 Nf6 5.Bb2 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6 5.c4 c6).

3.b5 Bd6 4.Bb2 Be6 5.Nf3 f6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3 Bd6).

3.b5 e4 4.Bb2 f6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 e4).

3.b5 Nf6 4.Bb2 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6).

3.b5 Nf6 4.Bb2 Bd6 5.Nf3 Nbd7 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 Ngf6).

3.b5 Nf6 4.Bb2 e4 (--> 1.b4 e5 2.Bb2 e4 3.e3 Nf6 4.b5 d5).

3.Bb5 c6

4.Ba4 Bb4 5.Bb2 Qd6 6.c3 Ba5 7.Qh5 (7.Ne2 Ne7–/+) 7...g6 (7...Nf6 8.Qg5–+) 8.Qg5 h6 9.Qh4 b5 10.Bb3 Qf6 (10...Ne7 11.e4–+) 11.g3 –+. jrich – dnowitzki (1725), net–chess.com, 2002.

4.Ba4 Bb4 5.Bb2 Nd7 6.Bb3 –+.

4.Ba4 b5 5.Bb3 e4 6.Na3 (6.a3 Qg5 7.g3 Bg4–/+) 6...Bd6 (better is 6...Qg5 7.Ne2 Qg2–+) 7.Nb5–/+ cb5 8.Bd5 Be5 9.Ba8 Ba1 10.Be4 Nf6 11.c3?? (11.Bd3 a6–/+) 11...0–0 12.Nf3?? Ne4–+ 13.0–0 Bg4 14.d3 Nc3 15.Qb3 Ne2 16.Kh1 Nc1 17.Qc2 Bf6 18.Rc1 Bf3 19.gf3 Na6 20.Qb3 Be5 21.Qa3 Qh4 22.Kg1 (22...Nb4 23.f4 Qg4 24.Kf1–+). markcav – danidek, net–chess.com, 2002.

4.Ba4 Nf6 5.b5 (5.Bb2 Bb4 6.Be5 Nbd7–/+) 5...Bb4 (5...Qa5 6.Nc3 Bb4 7.bc6 bc6 8.Bb3 Bc3 9.dc3–+) 6.c3 (6.bc6 Nc6 7.Bb2 Bd6–/+) 6...Bc5 (6...Bd6 7.Ne2–/+) 7.bc6 bc6 (7...Nc6 8.Nf3 Bd6 9.Ba3–/+) 8.Ba3 (8.d4 Bd6=+) 8...Qa5 (8...Ba3 9.Na3 Ba6 10.Nc2–/+) 9.Ne2 (9.Bc5 Qc5 10.d4 ed4 11.cd4 Qb4 12.Nd2 Ba6=) 9...Bg4 (9...Ba3!? 10.Na3 Ba6–+) 10.f3 (10.Bc5 Qc5 11.d4 Qe7=+) 10...Bf5 (10...Ba3 11.Na3 Bd7 12.d4–/+) 11.Ng3 (11.Bc5 Qc5 12.d4 ed4 13.cd4=) 11...Bb1 (better is 11...Ba3 12.Na3 Bd3–/+) 12.Rb1?? (better is 12.Bc5 Qc5 13.Rb1=) 12...Ba3–+ 13.Bc2 0–0 14.Nf5 e4 15.f4 Nbd7 16.d3 Qc3 17.Qd2 Qd2 18.Kd2 c5 19.de4 Bb4 20.Kc1 de4 21.a3 Ba3 22.Kd2 c4 23.Be4 Ne4 24.Ke2 c3 25.Nd4 Nd2 26.Rb7 Nc5 27.Re7 Ncb3 28.Nc2 Be7 29.Nd4 Nd4 30.Kd3 Nb5 31.Ra1 c2! 32.Kd2 Na3 33.e4 Rfd8 34.Kc1 Rd1 35.Kb2 Ra1 36.Ka1 c1Q 37.Ka2 Qb1# 0–1. Roseeis – juancabeta, internet, 2006.

4.Ba4 Qg5 5.Nh3?? (better is 5.Nf3 Qg2 6.Rg1–/+) 5...Qg2–+ 6.Bc6 (6.Rg1 Qh3 7.Nc3–+) 6...Nc6 7.Ke2 (7.Rg1 Qh2 8.b5 Bh3 9.Rg3–+) 7...Bg4 8.Kd3 Bd1 (9.Rd1 Qh3–+; 8...Qe4 9.Kc3 Qb4 10.Kd3 Qc4#) 0–1. Robbie101 – thotares (1665), internet, 2007.

4.Be2 Bb4 5.Bb2 Nd7 –/+.

4.Be2 Bb4 5.Nf3 e4 6.Ne5 (6.Nd4 Bd6–/+) 6...Qg5 (better is 6...f6 7.Ng4 h5–+) 7.Nf3? (better is 7.Ng4–+) 7...Qg2 8.Bf1 (8.Rf1 ef3 9.Bf3 Qh2 10.Bb2–+) 8...Qh1 (8...ef3 9.Bg2 fg2 10.Rg1+/–) 9.c3 (9.Ng5–+) 9...Bh3 10.Ng5 Qf1# 0–1. nachodynamite – pierre (2150), internet, 2007.

3.f3 Bb4

4.Bb2 Bd6 5.f4 ef4 6.ef4 Bf4 7.Bb5 Kf8 8.Qf3 –/+.

4.Bb5 c6 5.Bd3 Qg5–+ 0–1. Robbie101 – pierre (2185), internet, 2007.

3.Qh5 Nf6

4.Qe5 Be7 5.Ba3 Nc6 (better is 5...Nbd7 6.Qg3 0–0=) 6.Qg3 (6.Qb2 Bf5=) 6...0–0 (6...Ne4 7.Qf3–/+) 7.Be2 (7.b5 Nb4 8.Bb4 Bb4=) 7...Bd6 (7...Nb4 8.Bb4 Bb4 9.Nf3–/+) 8.f4 (8.Qh4 Ne4 9.Qd8 Rd8= (< 9...Nd8 10.b5+/–)) 8...Be6 (8...Nb4!? 9.Kd1 Ne4–/+) 9.b5 (9.c3 Ne4 10.Qf3 Qh4 11.g3 Qf6=+) 9...Ba3 (better is 9...Ne4 10.Qf3 Nb4 11.Bb4 Bb4=+) 10.bc6?? (better is 10.Na3 Ne4 11.Qf3=) 10...Bb2–+ 11.cb7 Rb8 12.e4 Ba1 13.Qb3 Ne4 14.a4 d4 15.Qa3 Rb7 16.Qa1 c5 17.Bf3 Bf5 18.d3 Nc3 19.Bb7?? Qe8?? 20.Kd2?? Qe3# 0–1. nwishn (1900) – oracleinshadows (1725), net–chess.com, 2006.

4.Qe5+= Be7 5.Bb5 Kf8 (5...Nc6 6.Nf3–/+) 6.Bb2 (6.Qb2 a6 7.Be2 Nc6=) 6...Bb4 (6...a6 7.Bd3 Nc6 8.Qf4+=) 7.Ne2 Bg4 (7...Nc6 8.Qg5+=) 8.Nf4 (8.h3 Bd7 9.Qf4 Bd6 10.Bf6 Qf6 (worse is 10...gf6 11.Qh6 Ke7 12.Bd7 Kd7 13.Nbc3+/–) 11.Qf6 gf6 12.Bd7 Nd7+=) 8...a6 9.Ba4 (better is 9.h3 Bd6 10.Qc3 ab5 11.hg4+=) 9...b5–+ 10.Bb3 (better is 10.f3 Nc6 11.Qg5–/+) 10...Nc6?? (10...Nbd7 11.Qg5 h6 12.Bf6 Nf6–+ (12...hg5?! 13.Bd8 Rd8 14.Nd5+=; 12...Qf6?? 13.Qg4 Ne5 14.Qe2+–)) 11.Qg5+= Na5?? (better is 11...h6!? 12.Bf6 hg5 (worse is 12...Qf6 13.Qf6 gf6 14.Bd5+/–) 13.Bd8 Rd8 14.Nd5 Bd6=) 12.Bf6 (better is 12.Nd5 Be7 13.Ne7 Qe7 14.Ba3+–) 12...gf6?? (better is 12...Qf6 13.Qf6 gf6 14.Nd5 Bd6+/–) 13.Qg4+– c6 14.a3 (14.Qh4 Bd6+–) 14...Bd6 15.Nc3 (15.0–0 Rg8 16.Qf5 Rg7+–) 15...Rb8 (15...Rg8 16.Qf3+–) 16.Qh5 (16.0–0 Rg8 17.Qf5 Bf4 18.ef4 Rg6+–) 16...Rg8 (16...Bf4 17.ef4 Qe7 18.Kf1 h6+–) 17.e4 (better is 17.Qh6 Ke7 18.Nce2+–) 17...Bf4+= 18.ed5 (18.g3 Be5+=) 18...cd5 (18...Qe7!? 19.Kd1 Qc5=) 19.Bd5+= (worse is 19.Nd5 Nb3 20.cb3 Be5+=) 19...Rc8?? (better is 19...Qe7 20.Kf1 Nc4 21.Bc4 bc4+=) 20.Qf7 1–0. Reichelt,Ben (1890) – Franziska,Franzi (2110), remoteschach.de, 2002. (=1.e3 d5 2.b4 e5 3.Qh5 Nf6)

2.e3 e6

3.a3 b6 4.c4 c6 5.d4 Nf6 6.Nc3 dc4 7.Bc4 b5 8.Bb3 Be7 9.h3 0–0 10.Nf3 a5 11.ba5 Qa5 12.Bd2 Qa7 13.a4 Nbd7 14.0–0 Nb6 15.ab5 Qa1 16.Qa1 Ra1 17.bc6 Ra3 18.Bc2 Nbd5 19.Nb5 Ra8 20.Ne5 Ra2 21.Rc1 Nb6 22.Be1 h6 23.Bb3 Ra8 24.Bc3 Ne8 25.Bb2 Nd6 26.Nd6 Bd6 27.g4 Be5 28.de5 Rb8 29.c7 Rb7 30.Bd1 Nd5 31.Ba3 Nc7 32.Bf8 Kf8 33.Bf3 Ra7 34.Kg2 Bd7 35.Rd1 Ke7 36.Kg3 Ra6 37.Rc1 Nb5 38.Be2 f6 39.ef6 Kf6 40.Bb5 Bb5 41.Rc5 Be2 42.e4 Ra3 43.Kh2 Rf3 44.Kg2 Ra3 45.e5 Kg6 46.Rc2 Bd3 47.Rd2 Be4 48.Kh2 Kg5 49.Re2 Bd5 50.Rd2 Ra4 51.Rd3 Re4 52.Re3 Kf4 53.Re4 Ke4 54.Kg3 Ke5 55.f4 Ke4 56.h4 g6 57.h5 gh5 58.g5 hg5 59.fg5 Kf5 60.Kh3 Kg5 61.Kg3 e5 0–1. pillsbury (2145) – mrrook (2305), net–chess.com, 2014.

3.a3 c6 4.Bb2 f5 5.c4 Nf6 6.Nf3 Bd6 (--> 1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.a3 d5 5.Nf3 Bd6 6.c4 c6).

3.a3 Bd7 4.Bb2= b5 (4...Nf6 5.Nf3=) 5.Nc3 (5.Nf3 a5=) 5...a6 6.Nf3 (6.Bd3 Nf6=) 6...f6 (6...Nf6 7.Bd3=) 7.d4 (7.Be2 c5=) 7...c6 (7...a5 8.ba5 Ra5 9.Bd3+=) 8.Bd3 Nh6 (8...a5 9.ba5 Bd6 10.e4+=) 9.Nd2 (9.e4 a5 10.ba5 Bd6+=) 9...Qc7 (9...a5 10.ba5 e5 11.de5 fe5 12.Qh5 Nf7 13.Bh7 Ra5 14.h4=) 10.Qh5 g6 (10...Kd8 11.Nb3+=) 11.Qf3 (11.Qh4 Qd8+=) 11...Bg7 (11...f5+=) 12.h4 (12.e4 0–0+=) 12...Nf7 (12...e5!?=) 13.h5+= Ng5 (13...a5 14.hg6 hg6 15.Rh8 Nh8 16.ba5 Ra5 17.Nb3+=) 14.Qe2 (14.Qf4 Qd8+/–) 14...Nf7 (14...f5 15.Nb3+=) 15.a4 (15.e4 Kd8+/–) 15...g5 (15...Qd6 16.ab5 Qb4 17.Ra2+= (17.hg6 Qb2 18.gf7 Kf7–/+)) 16.ab5 (16.e4 Qd6+=) 16...cb5 17.Nb5 (17.e4 Nc6 18.ed5 Nd4 19.Nb5 Nc2 20.Kd1 Bb5 21.Bb5 Kd8 22.Qe6 Na1+–) 17...Qb7+= 18.Nc3 (18.Na3 Qb4 19.Rb1 Qd6+/–) 18...Qb4 19.Nd1 Ke7?? (better is 19...a5+=) 20.Ba3+– (20.Ba6?! Ra6 21.Ra6 Na6 22.Qa6 Qa4 23.Ba3 Ke8 24.Qa4 Ba4+/–) 20...Nc6 21.c4 (21.c3 Qa3 22.Ra3 f5+–) 21...Qa3 (21...dc4 22.Bc4 Nd6 23.Bb4 Nb4 24.0–0+–) 22.Ra3 dc4 (22...Nb4 23.Nc3+–) 23.Bc4 Nb4 24.0–0 (24.Ne4 a5+–) 24...Nd6 (24...Rhc8 25.Nc3+–) 25.Nc3 Nf5 (25...Rhb8 26.Nde4+–) 26.Nde4 Bc6 (26...Nd6 27.Nd6 Kd6 28.Ne4 Ke7 29.Qf3+–) 27.Nc5 Kd6 (27...Bd7 28.N3a4 Bc8 29.Nb6+–) 28.Be6 Nh4 29.Rb1 (29.Qc4 Bg2 30.N5e4 Be4 31.Ne4 Ke7 32.Qc7 Ke6 33.Nc5 Kd5 34.Qb7 Nc6 35.Qf7 Kd6 36.Qd7) 29...a5 30.Qc4 Ng2 31.Bh3 Bd5 32.Nd5 (32.N5e4 Ke7 33.Nd5 Nd5 34.Rb7 Kf8 35.Qd5 Ke8 36.Nd6 Kd8 37.Rd7) 32...Nd5 (32...g4 33.Ne4 Kd7 34.Qc7 Ke6 35.Qe7 Kd5 36.Qd7 Ke4 37.Bg2) 33.Ne4 (33.Rb7 g4 34.Ne4 Ke6 35.Bg4 f5 36.Qc6) 33...Ke7 34.Rb7 Kf8 (34...Ke8 35.Qd5 Ra7 36.Qe6 Kd8 37.Qd7) 35.Qc5 (35.Qd5 Ke8 36.Nd6 Kd8 37.Rd7) 35...Ke8 36.Nd6 Kd8 (36...Kf8 37.Qd5 Ne3 38.Qf7) 37.Rd7 1–0. marekt – arunee, GameColony.com, 2002.

3.b5 e5 4.Nf3 e4 5.Ne5 =+.

3.b5 Nf6 4.Nf3 Bd6 5.Be2 (5.Ba3 Ba3 6.Na3 Qe7=+) 5...h6 (5...e5 6.Ba3=+) 6.0–0 c6 (6...a6 7.Ba3=) 7.Bb2 (7.Ba3 c5=) 7...c5 (7...cb5 8.Bb5 Bd7 9.Be2=) 8.c4 (8.Be5 0–0+=) 8...Nbd7 (8...0–0 9.d3=) 9.Nc3 (9.d4 0–0+=) 9...e5 (9...dc4 10.Bc4 Nb6 11.Bb3=) 10.d3 (10.cd5 e4 11.Ne1 Qc7+/–) 10...d4= 11.ed4 (11.Ne4 Ne4 12.de4 Qf6=) 11...cd4=+ 12.Nd5 (12.Na4 Qc7=+) 12...Nd5–/+ 13.cd5 Nf6 (13...Qb6 14.a4=+) 14.Qa4 (14.Qb3 Bc7=+) 14...Bd7 (14...Nd5 15.Rac1–/+) 15.Nd2 (15.Qb3 0–0–/+) 15...Nd5 (15...a6 16.Ne4 Bb5 17.Nf6 Qf6 18.Qb3–+) 16.Bf3 Nb6 17.Qb3 Be6 18.Qc2 Nd7 19.Bb7= Rb8 20.Bc6 0–0 21.Ne4 Nf6+= 22.Nf6 Qf6=+ 23.a4 Rfc8 24.Qe2 Rd8 25.Ba3 Qg5 26.Bd6 Rd6 Black gets in control 27.Qf3 a5 28.Rab1 Bg4 29.Qg3 Be2–/+ 30.Qg5 hg5 31.Rfe1 Bd3 32.Rb2?? f6 33.f3?? Bf5 34.Be4–/+ Be4 35.Re4 Kf7 36.g4 Ke6 37.Kg2 Kd5 38.Kg3 Kc4 39.h4 Kc3 40.Rh2 d3 41.Re3 Rd4 42.hg5 Kc4?? 43.gf6 gf6 44.g5? d2–+ 45.Rd2 Rd2 46.gf6 Rg8 47.Kh3 Kd4 48.Re4 Kd5 49.b6 Rb2 50.f7 Rf8 (51.Kg4 Rb6–+) 0–1. icewater – LOBOKNIGHT, Caissa.com, 2004.

3.b5 g6 4.Bb2 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 g6).

3.c3 (--> 1.b4 e6 2.c3 d5 3.e3).

3.Be2 Bb4–/+ 4.Nf3 Nf6 5.0–0 0–0 6.Bb2 c5 7.c3 Ba5 8.d4 cd4 9.Qd4 Bb6 (better is 9...Nc6 10.Qh4 Ne4–/+) 10.Nbd2?? (better is 10.Qd3–/+) 10...Bd4–+ 11.ed4 Ne4 (11...Nc6!? 12.Ne5–+) 12.Ne4 de4 13.Nd2 Nc6 14.Ne4 f5 15.Nc5 e5 16.de5 Ne5 17.c4 (17.Rfe1 Qa5 18.Nb3 Qc7–+) 17...Qd2 18.Bh5 (18.Be5 Qe2 19.Rfe1 Qc4 20.Nb3–+) 18...Qb2 19.Rab1 (19.Rfe1 f4–+) 19...Qa2 20.Rbd1 Nc4 (20...Qc4 21.Rc1 Qf4 22.g3–+) 21.Rc1 Qf2 (better is 21...Nd2 22.Rfe1 b6–+) 22.Rf2 g6 (22...Ne3!? 23.Rb2–+) 23.Bf3 Na5 24.Rfc2 Nc6 25.Bc6 bc6 26.Na4 Bd7 27.h3 Rac8 (27...f4 28.Rd2 Be8 29.Kf2–+) 28.Nc5 Be8 29.Ne6 Rf6 30.Rc6 (30.Nc5–+) 30...Rc6 31.Rc6 a5 (better is 31...Bc6 32.Nf4–+) 32.Rc8 (32.Ra6–+) 32...Re6 33.Rc5 Re1 (33...a4!? 34.Rc8–+) 34.Kf2 Ra1 35.Kf3 h5 36.Kf4 Rf1 37.Kg5 a4 38.Rc8 Kf8 39.Kf6 (39.Rc3 Kf7–+) 39...Rb1 (39...Rf2 40.g3–+) 40.Rc4 (40.Ke5 h4 41.Rc2 a3–+) 40...Rb6 (better is 40...a3!? 41.Rc2 Rb2 42.Rc8–+) 41.Ke5 Rb5 42.Kd4 a3 43.Rc1 a2 44.Ra1 Bf7 45.Kc3 (45.g3 Rb1 46.Ra2 Ba2–+) 45...Rb3 46.Kc2 Rg3 47.Ra2 (47.Kb2 Rg2 48.Kc3 f4–+) 47...Rg2 48.Kb1 Ba2 49.Ka1 Rg1 50.Ka2 Ra1!? (51.Kb2 f4 52.Ka1 f3–+) 0–1. Pieleck,Kerstin – Pieleck,Rudi, RSX9E – A00 – Sokolsky–1, 2002.

3.a3 Be7

4.Bb2 Bf6 5.Nc3 Bc3 6.dc3 Nf6 7.c4 b6 8.cd5 ed5 9.Qf3 Nbd7 10.Bb5 0–0 11.c4 Bb7 12.Bd7 Nd7 13.cd5 a5 14.b5 Nc5 15.Rd1 Qd7 16.Bd4 Qb5 17.Qg3 (better is 17.Qg4!? f6 18.Qe2+=) 17...f6–/+ 18.Ne2 Nd3 (18...Bd5?! 19.Nc3 Qc4 20.Nd5 Qd5 21.0–0+=) 19.Kf1 Qc4 (19...Qb3!? 20.Nc3 Bd5–/+) 20.e4+= Ba6 21.Kg1 c5 22.dc6 Rac8 23.Qe3 (23.Bb6? Qc2 24.Rf1 Qe2–+) 23...Rc6 24.h3 (24.Bb6? Qb3 25.Ra1 Rb6–+) 24...Qb3 25.Ra1 Qe6 26.Rb1 Attacks the backward pawn on b6 26...Nc5 27.Ng3 Re8 28.f3 Bc4 29.Kh2 Qd6 (better is 29...Nb3!?=) 30.Rb6+/– Ne6 31.Rc6 Qc6 32.Rc1 Qb5 33.Qc3 Nd4 34.Qc4 Qc4 35.Rc4 Rd8 36.Rc5 Ra8 37.Rd5 Nc6 38.Nf5 Kf7 (better is 38...Kf8+–) 39.Rd7 (39.Rd7 Kf8 40.Rc7+–) 1–0. Maci – Player_reh, playchess.de, 2005.

4.Bb2 Bf6 5.d4 Ne7 6.Bd3 Ng6 (6...Nd7 7.Nf3=) 7.c4 c6 (7...Nh4 8.g3 dc4 9.Bc4=) 8.Nf3+= 0–0 9.Nbd2 Nd7 10.0–0 Re8 11.Bg6 fg6 12.e4 de4 (12...Nb6!?+=) 13.Ne4+/– Nf8 (13...b5 14.c5+/–) 14.Qe2 Be7 15.Bc1 (15.Rfe1 e5+–) 15...h6 (15...e5 16.de5 Bg4 17.Bb2+/–) 16.Bd2 (16.Ne5 a5+–) 16...g5 (16...e5 17.de5 Bg4 18.Bc3+/–) 17.Rad1 Qc7 (17...Ng6!?+/–) 18.Ne5+– Bf6 (18...Nh7 19.f4 g4 20.Qg4+–) 19.Nf6 gf6 20.Qh5 Qe7 (20...fe5 21.Qe8 ed4 22.f4+–) 21.Ng4 Qg7 (21...Nh7+–) 22.Nh6 (22...Kh8 23.Nf5 Qh7 24.Qe8 Qf5 25.Qf8 Kh7 26.d5+–) 1–0. Caissa – orandd, Internet, 2003.

3.a3 Nf6

4.Bb2 Bd6 +=.

4.Nc3 a5 5.ba5 e5 6.Bb2 +=.

4.Nc3 Nc6 5.d4 (5.Nf3 a6=) 5...Bd6 6.Nf3 0–0 (6...a6 7.Be2=) 7.b5 Na5 (7...Ne7 8.Bd3=) 8.Bd3 c6 (8...c5 9.bc6 Nc6 10.e4+=) 9.a4 (9.0–0 Bd7=) 9...Bb4 (9...cb5 10.Nb5 Bb4 11.Bd2=) 10.Bd2 cb5 (10...c5 11.Rb1=) 11.Nb5 (11.ab5 Nc4 12.Bc4 dc4=) 11...Bd2 12.Qd2 (12.Nd2 Bd7=) 12...a6 (12...Ne4 13.Qe2=) 13.Nc3 Qc7 (13...b6 14.0–0=) 14.Rb1 (14.0–0 b6=) 14...Bd7 15.Ne5 (15.Rb4 Rfc8 16.Ne2 Ne4+=) 15...Rfc8+= 16.Nd7 (16.Nd1 Ba4 17.Ra1 b5–/+) 16...Nd7 (16...Qd7 17.Rb4+=) 17.Ne2 Nc4 18.Qb4 (18.Qc3 Qd8+=) 18...a5 (18...Rab8 19.0–0+=) 19.Qe7= (19.Qb7?? Rab8 20.Qb3 Rb3 21.cb3 Na3–+) 19...Ndb6 (19...Ncb6 20.Qa3=) 20.Qc7 Rc7 21.Nc3 Rac8 22.Rb3 (22.Ke2 h5=) 22...Rc6 (22...h6 23.Ke2=) 23.e4 (23.Ke2 g5+=) 23...de4 24.Ne4 (24.Be4 Rd6 25.Bb7 Rb8=) 24...Rd8 (24...Na4 25.Rb7 Ncb2 26.Kd2+=) 25.c3 (25.Bc4 Nc4 26.Rb7 e5=) 25...Na4 (25...e5 26.Bc4 Nc4 27.de5 (worse is 27.Rb7 ed4 28.0–0 f5–+) 27...Ne5 28.0–0= (28.Rb7? Nd3 29.Ke2 Re6–+)) 26.Rb7 f5 27.Bc4? (better is 27.Ng5!?+=) 27...Rc4–+ 28.Ng5 (28.Nd2 Rc3 29.Nb3–/+) 28...Re8 (better is 28...Nc3!? 29.g3 Rb4 30.Rb4 ab4–+) 29.Kd2–/+ h6 (29...Rc3?! 30.Re1 Rc6 31.Re5=) 30.Nf7 (30.Nf3 Nc3 31.Ra1 Ne4 32.Ke3 Rc3 33.Kf4 Rc2–/+) 30...Nc3 31.Kd3 Rb4 32.Nd6 Ne4 (32...Rd8 33.Kc3 Rd6 34.Rb4 ab4 35.Kc4=) 33.Rb4+= ab4 (33...Nf2 34.Kc4 ab4 35.Ne8 Nh1 36.Kb4–/+) 34.Ne4= fe4 35.Ke4 Kf7 (35...Rf8 36.f4=) 36.Rb1 Rb8 37.Rb3 Kf6 (37...Ke7 38.h4=) 38.h4 (38.Kd3 e5=) 38...g5 39.hg5 hg5 (worse is 39...Kg5 40.Ke5+/–) 40.Kd3 (40.g4 Ke7=) 40...Kf5 41.Kc4 Attacks the isolani on b4 41...Ke4 42.Re3 (42.Rb4 Rb4 43.Kb4 Kd4–+) 42...Kf5 43.f3 b3 (43...Kf4 44.Re6 b3 45.Re1=) 44.Rb3 Rb3 45.Kb3 Kf4 46.Kc4 Ke3 (46...Kg3 47.Kc5=) 47.Kc5 Kf4?? (better is 47...Kf2=) 48.Kd6+– Kf5 (48...Kg3 49.Ke6 Kg2 50.d5 Kf3 51.d6+–) 49.g3 Kf6 50.g4 Kf7 51.Ke5 Ke7 52.f4 Kf7 53.f5 ef5 54.Kf5 Kg7 (54...Ke7 55.Kg5 Ke6 56.Kg6+–) 1–0. marekt – slavi, GameColony.com, 2002.

4.Nc3 Be7 5.d4 0–0 6.Bd3 h6 (6...a5 7.b5=+) 7.Nf3= Nbd7 8.0–0 b6 9.e4 de4 10.Ne4 Bb7 11.Re1 Ne4 12.Be4 Be4 13.Re4 Nf6 14.Re2 c5 15.Rb1 (15.bc5 bc5 16.c4 cd4=) 15...Nd5=+ 16.Bd2 c4 17.c3 Bd6 18.Ne5 Qh4 19.g3 Qh5 20.Nc4 Be7 21.Ne5 Rac8 (21...b5!?=) 22.c4+/– Nf6 23.Re3 Qd1 24.Rd1 Bd6 (24...a6 25.c5+/–) 25.c5 (better is 25.b5!?+/–) 25...Be5+= 26.Re5 Nd5 27.Rc1 a6 28.c6 (28.f4!?+/–) 28...b5 29.Re4 (29.Re2 Rfd8=) 29...Rc7 30.f4 Rfc8 31.f5 Rc6 32.Rc5 Rc5 (32...Nf6 33.Rf4=+) 33.bc5= Rc6 (33...Nf6 34.Rf4=) 34.fe6 fe6 35.Kf2 Kf7 36.Ke2 Kf6 37.Kd3 Rc8 38.Re2 g5 39.h4 Rg8 40.hg5 hg5 41.Re1 (41.Ke4 Ke7+=) 41...Rg6 (41...Rh8!?=) 42.Rh1 Kf5 43.Rf1 Kg4 44.c6 Kg3 45.Rf7 (45.Rc1 Rg8 46.Ke4 g4+/–) 45...g4 (better is 45...Rg8!?=) 46.c7+/– Rg8 47.Be1 Kh3 48.Rh7 Kg2 49.Rf7 (49.Rg7 Rc8 50.Rg4 Kf1+=) 49...Rc8 50.Ba5 g3 51.Ke4 Kg1 52.Ke5 g2 (better is 52...Re8=) 53.Ke6+– Nc7 54.Bc7 (54.Rc7?? Rc7 55.Bc7 Kh1–+) 54...Rh8? (better is 54...Re8 55.Kd7 Re3+–) 55.d5+– Kh1 (55...Re8 56.Kd7 Rh8 57.Ke7+–) 56.Bb6 g1Q (56...a5 57.d6+–) 57.Bg1 Kg1 58.d6 (58.d6 Rh3 59.d7 Re3 60.Kd6 Rd3 61.Ke7 Re3 62.Kf8+–) 1–0. Caissa – orandd, Internet, 2003.

4.c4 a5!? 5.b5 Nbd7 +=.

4.c4 c6 5.Nf3= Nbd7 6.Nc3 g6 (6...a5 7.b5=) 7.Bb2+= Bg7 8.Qc2 0–0 9.d4 (9.Be2 b6+=) 9...a5 10.b5 dc4 11.Bc4 c5 (11...Nb6 12.Bd3=) 12.Na4 cd4 13.Bd4 b6 14.0–0 (14.Rd1!? Qc7 15.Bb3 Qc2 16.Bc2+=) 14...Bb7= 15.Be2 Rc8 (15...e5 16.Ne5 Ne5 17.Be5 Qd5–/+) 16.Qb2+= Nh5 (16...Bf3 17.Bf3 (worse is 17.gf3 e5 18.Bc3 Nd5–/+) 17...e5 18.Bc3+= (worse is 18.Be5 Ne5 19.Qe5 Nd7–/+)) 17.Bg7 Ng7 18.Rfd1 Qe7? (better is 18...Bd5!?+/–) 19.Rd7!+– Qd7 20.Nb6 Qc7 21.Nc8 Rc8 22.h3 Nf5 23.Ne5 (23.Rd1 Rd8+–) 23...h5 (23...Qc2 24.Qc2 Rc2 25.Bf1+–) 24.Rd1 Bd5? (24...Qc2 25.Qc2 Rc2 26.Rd8 Kg7 27.Bd3 Rc1 28.Kh2+–) 25.Bf3 (25.b6 Qe7 26.Ba6 Rb8 27.Rd5 ed5+–) 25...Ne7 (25...Qb7 26.e4! Rc5 27.b6+–) 26.e4 f6 (26...Bb3 27.Ng6 fg6 28.Qb3 Qb6+–) 27.Ng6 (27.Rd5 ed5 28.Nd3 de4 29.Be4 Qc4 30.Bg6 Ng6 31.Qf6 Qe4–+ (31...Qd3?! 32.Qe6 Kg7 33.Qc8 Qb5 34.Qc7 Kh6 35.Qc3–/+); 27.ed5 Qe5 28.Qe5 fe5+–) 27...Ng6 28.Qf6 Nf4 (28...Bb3 29.Qg6 Qg7 30.Qg7 Kg7 31.Rd7 Kg6 32.Ra7+–) 29.ed5 (29.Rd5 ed5 30.Qg5 Kh7 31.ed5 Rf8 32.Be4 Kh8 33.Qh6 Kg8+=) 29...Qf7 (29...Rf8 30.d6 Qc2 31.Qg5 Qg6 32.Qh4+–) 30.Qf7 (30.Qg5 Kf8 31.Qh6 Kg8 32.de6 Qf8 33.Qg5 Qg7 34.Qf4 Rf8+–) 30...Kf7 31.d6 e5 (31...Rb8 32.h4 Ke8 33.g3+–) 32.g3 Nh3 33.Kg2 Ng5 34.Bh5 Kf6 35.Bg4 (35.d7 Rd8+–) 35...Rd8 36.d7 Ne4 (36...Ke7 37.Rc1+–) 37.f4 Nc3 (37...ef4 38.gf4 Kf7 39.b6+–) 38.Rd6 Kf7 (38...Ke7 39.fe5 Nb5 40.Rh6+–) 39.Ra6 (39.b6 Na4 40.fe5 Nc5+–) 39...a4 (39...Nb5 40.Ra5 Nc3 41.Re5+–) 40.b6 Nd5 (40...Ne4 41.Ra4 Nc5 42.Rc4+–) 41.Ra5 (better is 41.b7 Ne3 42.Kf3 Ng4 43.Ra8 Nh2 44.Ke4+–) 41...Nb6 42.Re5 Nd7 (42...Kf8 43.Rc5+–) 43.Rd5 (43.Rd5 Nf6 44.Rd8 Ng4 45.Ra8+–) 1–0. Ivanets,Vladimir (2185) – Kurnaev,Vladimir (1995), Moscow Open E, 2011.

4.f3 Nc6 5.c3 Bd6 6.h3? (6.d4 e5–/+) 6...Be5 (better is 6...Nh5!? 7.h4 Bg3 8.Ke2 Bh4–+) 7.d3 Bd7 8.f4 Bd6 9.g4 Qe7 10.Nf3 e5 11.f5 (better is 11.g5!? Ng8 12.b5+=) 11...e4–+ 12.de4 Ne4 (better is 12...Bg3 13.Ke2 de4–/+) 13.Nd4?? (better is 13.Qd5 h5 14.Bg2–/+) 13...Qh4 14.Ke2 Qf2 15.Kd3 Ne5 0–1. dumbroad – pieeater, ChessWorld.net, 2013.

4.f3 Qd6 5.Bb2 Be7 6.Bd4 (6.Nc3 Qb6+=) 6...Nc6 7.Bb5 Bd7 8.Nc3 (better is 8.Bc6 Bc6 9.Ne2+=) 8...0–0–0?? (better is 8...Nd4!? 9.Bd7 Qd7 10.ed4 0–0–/+) 9.Bc6?? (better is 9.Bc5 Qe5 10.Bc6 Bc5 11.Bd7 Nd7 12.bc5+–) 9...Bc6 10.Ba7 (better is 10.f4=) 10...h6 (better is 10...b6+=) 11.Bc5+/– Qd7 12.Be7 Qe7 13.b5 Bd7 14.a4 g5? (14...e5 15.b6+=) 15.f4 (better is 15.a5+–) 15...gf4+= 16.ef4 h5 17.Nf3+/– Ng4 18.0–0?? h4 19.Re1?? f5?? 20.Nd5 Qc5 21.Ne3+– Ne3 22.de3 Rdg8 23.Ne5 Rg7 24.Qd4 Qc2 25.g3?? hg3 26.Nf3 gh2 27.Kh1 0–1. monas – pieeater, ChessWorld.net, 2012.

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

3.Bb2

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

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

3.Bb2 f5 4.c4 Nf6 5.Nf3 c6 6.a3 Bd6 (--> 1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.a3 d5 5.Nf3 Bd6 6.c4 c6).

3...Nf6

4.a3 c5 5.bc5 Bc5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5).

4.a3 c5 5.bc5 Bc5 6.Nf3 0–0 7.d4 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 c5 5.bc5 Bc5 6.d4 Be7 7.e3 0–0).

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

4.a3 Bd6 5.c4 0–0 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 0–0 6.c4).

4.a3 Bd6 5.c4 0–0 6.Nf3 c5 7.b5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.b5 Bd6 6.Nf3 0–0 7.c4).

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

4.b5 b6 5.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Nbd7 5.Nf3 b6).

4.b5 c5 5.c4 Nbd7 6.a4 b6 7.Nf3 Bd6 8.Be2 Bb7 9.0–0 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 9.a4 Bb7).

4.b5 c5 5.c4 Nbd7 6.Nf3 Be7 7.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7).

4.b5 c5 5.Nf3 Nbd7 6.c4 Be7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.d4).

4.b5 c6 5.a4 Be7 6.c4 0–0 7.Nf3 dc4 8.Bc4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.c4 dc4 6.Bc4 0–0 7.Nf3 c6 8.a4).

4.b5 Bd6 5.c4 c5 6.Nf3 Nbd7 7.a4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.a4).

4.b5 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7).

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

4.b5 Be7 5.Nf3 0–0 6.Be2 c6 7.a4 a6 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6 8.Be2).

2.e3 Bf5

3.a4 e6 4.b5 Be7 (4...Nf6 5.Nf3+=) 5.Bb2 Bf6 6.d4 (6.Nc3 Ne7+=) 6...Ne7 (6...c5 7.Nf3+=) 7.h4 (7.Nf3 0–0+=) 7...h6 (7...0–0 8.g4 Be4 9.f3 Bh4 10.Rh4=) 8.g4+= Bh7 (better is 8...Be4 9.f3 Bg6+=) 9.Qf3? (better is 9.a5+=) 9...Be4–+ (9...Bc2?! 10.Nc3–/+) 10.Qh3 Bh1 11.Qh1 c5 12.Nf3 Nd7 13.Qg2 White intends g5 (13.Bd3 0–0–+) 13...Ng6 (13...cd4!? 14.Bd4 Bd4 15.ed4 Qa5 16.Kd1–+) 14.g5 hg5 15.Ng5?? (better is 15.hg5 Be7 16.dc5–/+) 15...Nh4–+ 16.Qg4 Bg5 17.dc5 Bf6 18.c3 (18.Bd4 Qa5 19.Nd2 Nc5–+) 18...Ne5 (18...Nc5 19.a5–+) 19.Qd1 (19.Qe2 Nhf3 20.Kd1 Rh1–+) 19...Nhf3 20.Ke2 Rh2 (20...Ng1 21.Kd2–+) 21.Ra2 (21.Nd2 Bh4 22.Qc2 Rf2 23.Kd1 Rd2 24.Qd2 Nd2 25.Kd2 Qf6–+) 21...Ng1 22.Kd2 Rf2 23.Kc1 Ngf3 (23...Rc8 24.b6 Ngf3 25.Bb5 Nd7 26.c4–+) 24.Na3 (24.a5 Bg5 25.Be2 Be3 26.Kc2 Ng1–+) 24...Nc4 (24...Rc8 25.c6 bc6 26.Be2–+) 25.Be2 (25.Bc4 dc4 26.Nc4 Qd1 27.Kd1 Be7–+) 25...Ne3 26.Qd3 Bg5 27.Kb1 Ne5 28.Qd4 Re2 29.Qe5 Qf6 (29...Qf6 30.Qf6 Bf6–+) 0–1. Zylla,Johannes – Kaiser, BS–Kreismeisterschaft, 1994.

3.c4 d4 4.Bb2 e5 5.a3 Nf6 6.Nf3 Ng4 7.h3 Nf2 (better is 7...Nh6!?+=) 8.Kf2+– de3 9.Ke3 Nc6 10.Nc3 (10.Be5 Ne5 11.Nc3 Be6–/+) 10...Be7 11.d3 0–0 12.Be2 a5 13.Nd5 Bd6 14.Qb3 Re8 15.b5 Nd4 16.Bd4 ed4 17.Kf2 c6 18.c5 Bg3?? (better is 18...Bc5 19.bc6 bc6–/+) 19.Kg3+– Re2 20.Nf4 (20.Nd4 Qg5 21.Kf3 Qg2 22.Kf4 g5 23.Kf5 Qf2 24.Kg4 h5 25.Kg5 Re5 26.Nf5 Qf5 27.Kh4 Qf2) 20...Re3 21.Kf2 g5 22.g4?? (better is 22.Ne2 Rd3 23.Qb2+–) 22...Be4–+ 23.Ne5 gf4?? 24.Qf7+– Kh8 25.de4 Qh4 26.Kf1 Qh6?? 27.Qb7+– Rf8 28.Nf7 Rf7 29.Qf7 Rh3 30.Qe8 Kg7 31.Qd7 Kg8 32.Qd8 Kf7 33.Qc7 Kg8 34.Rg1 d3 35.Ra2 Re3 36.Qd8 Kf7 37.Qd7 Kg8 38.Qe8 Kg7 39.Qh5 Qf6 40.Rh1 Rf3 41.Kg2 Rg3 42.Kh2 Qe6 43.Qg5 Kh8 44.Qf4 Rg4+= 45.Qf8 Rg8 46.Qg8 Kg8 47.Rg2 Kf8 48.Rf1 Ke8 49.b6 Qe5 50.Kh1 Qe4 51.b7 Qh4 52.Kg1 Qd4 53.Rff2 Qa1 54.Kh2 Qe5 55.Rg3 Ke7? 56.Kg2+– Qe4 57.Kf1?? Qh1= 58.Rg1 Qh3 59.Rfg2 Qf5 60.Ke1 Qe5 61.Kd2 Qb2 62.Kd3 Qa3 63.Ke4 Qb4 64.Kf3 Qc3 65.Kg4+/– Qg7 66.Kf3 Qf6 67.Ke4 Qe6 68.Kd3 Qd5 69.Ke2 Qe4 70.Kd2 Qb4 71.Kd3 Qa3 72.Ke2 Qb2 73.Ke1 Qc1 74.Ke2 Qc2 75.Ke1 Qc1 76.Ke2 Qc2 77.Ke1 Qc1 ½–½. combijack (1790) – karvik (1610), gameknot.com, 2011.

3.c4 Nf6 4.d4 =+.

3.d3 Nf6 4.Bb2 e6 5.a3 Bd6 6.Be2 0–0 (6...a5 7.g4 Bg6 8.g5=) 7.Nf3 (7.g4!? Bg6 8.h4+=) 7...a5= 8.b5 c6 9.c4 Nbd7 10.Nh4 Bg6 11.Ng6 fg6 12.0–0 Qc7 13.f4 e5 (13...dc4 14.dc4 g5=+) 14.fe5 Be5–/+ 15.Nc3 Bh2 16.Kh1 dc4 17.dc4 Nc5 18.b6 Qb6–+ 19.Na4 Qc7?? 20.Nc5+– 1–0. jartug – ARMAGEDON_8, ChessWorld.net, 2003.

3.Bd3 Bd3 4.cd3 e6 5.Bb2 Nf6 (5...Bb4?? 6.Bg7 Qg5 7.Bh8 Qg2 8.Qf3 Qf3 9.Nf3+–) 6.a3 c6 (6...Bd6 7.Nf3+=) 7.Nf3 Be7 (7...a5 8.ba5 Ra5 9.0–0+=) 8.0–0 (8.Nc3 0–0+=) 8...Nbd7 9.Nc3 0–0 10.Qc2 (10.Rc1 e5+=) 10...a6 (10...a5 11.b5+=) 11.Ne2 (11.Rfc1 e5+=) 11...h6 (11...Bd6 12.e4 e5 13.Nh4+=) 12.Rac1 (12.Rab1 Bd6+=) 12...Rc8 (12...a5 13.ba5 Ra5 14.Ra1+=) 13.Qc3 (13.e4 c5 14.e5 Nh7 15.bc5 Rc5=) 13...Nb6 (13...c5 14.Qb3+=) 14.Ne5 (14.Qb3 Bd6+=) 14...Na4+= 15.Qc2 (15.Qd4 Nb2 16.Qb2 Qb6+=) 15...Nb2= 16.Qb2 Nd7 (16...Qb6 17.Rc2=) 17.d4= Bf6 (17...Ne5 18.de5 a5 19.ba5 Qa5 20.Qb7+=) 18.f4 Ne5 (18...Nb6 19.d3=) 19.fe5 Bg5 20.Qc2 (20.Rf3 a5=) 20...f5 (20...a5 21.Rb1=) 21.ef6 (21.Nf4 Bf4 22.Rf4 a5+=) 21...Rf6= 22.Rf6 Qf6 23.Rf1 Qe7 24.Qg6 Qe8 25.Qd3 Qe7 26.Nf4 (26.Nc3 Rf8=) 26...Bf4 27.Rf4 Rf8 28.Rf8 Qf8 (28...Kf8 29.Qc3=) 29.Qg6 Qf7 30.Qg3 Kh7 31.Qe5 Kg8 32.d3 Kh7 33.e4 (33.Qb8 Qf5 34.Qb7 Qd3=) 33...Kg8 (33...Qf6 34.Qf6 gf6 35.Kf2+=) 34.g4 Kh7 (34...Qf6 35.Qf6 gf6 36.Kf2=) 35.Kg2 Kg8 (35...Qf6 36.Qf6 gf6 37.Kf3=) 36.h4 (36.Qd6 Kh7=) 36...Qg6 (36...Qf6 37.Qb8 Kh7 38.Qb7 Qh4 39.Qc6 Qg4 40.Kf2 Qf4 41.Ke2 Qh2 42.Kd1 Qg1 43.Kc2 Qf2 44.Kb3=) 37.Kg3 (37.Kf3 Qf6 38.Ke3 Kh7=) 37...Qf7 (37...Qf6 38.a4=) 38.h5 Kh7 39.Qf4 Qf4 (better is 39...Qf6 40.e5 Qf4 41.Kf4 g6=) 40.Kf4+– Kg8 41.Ke5 Kf7 42.Kd6 Kf6 (42...de4 43.de4 e5 44.de5 Ke8+–) 43.e5 Kf7 44.Kc7 1–0. Wall,Bill – AxBlew, internet, 2002.

3.d4 (--> 2.d4 Bf5 3.e3).

3.Nf3 c6 4.d4 Nf6 5.Bd3 Bd7 6.0–0 Bg4 7.Qe1 Bf3=+ 8.gf3 e6 9.Nc3 Bb4–/+ 10.Rb1 a5 11.a3=+ Bc3 12.Qc3 b5 13.e4 0–0 14.Bg5? Ra6?? 15.e5 Nbd7?? 16.ef6+/– Nf6 17.Bf6 Qf6+= 18.Rfe1 Qf3?? 19.Re3 Qf6 20.Rg3 g6 21.Re1 Raa8 22.Ree3 Rfc8+= 23.Ref3 Qe7 24.Qc5 Qc5–/+ (24...Qc5 25.dc5 e5–/+) 0–1. Lausten – novice1234, ChessWorld.net, 2009.

3.Nf3 Qd6 4.a3= e5 5.Bb2 f6 (5...Nd7 6.c4=) 6.c4 dc4 (6...a5 7.b5=) 7.Bc4 Nh6 (7...Bd3 8.Qb3 Bc4 9.Qc4+=) 8.Nc3 (8.d4 a5 9.Nbd2 e4+=) 8...c6 (8...Nc6 9.Qa4 Bg4 10.d4 Bf3 11.gf3+/–) 9.d4 Nd7 (9...b5 10.Be2+=) 10.de5 (10.Qe2 Qe7+=) 10...Ne5 (10...fe5 11.Qe2+=) 11.Ne5 fe5 (11...Qe5 12.Qh5 Bg6 13.Qe5 fe5 14.Rd1+=) 12.Qf3 (12.e4 Bg6+=) 12...0–0–0 (12...Rd8!? 13.0–0 Qg6+=) 13.Rd1+/– Qc7 14.Rd8 Qd8 15.0–0 (15.Qg3 Qf6+/–) 15...Bd6 (15...Qd2 16.Ba1+/–) 16.e4 Bd7 (16...Bg4 17.Qe3 b5 18.Bb3+–) 17.b5 (17.Qe3 a6+/–) 17...Rf8 (17...Qh4 18.bc6 bc6 19.Na4+/–) 18.Qg3 Qe7 19.bc6 bc6 20.Ba6 (20.Bc1 Ng4+/–) 20...Kd8+= 21.Na4 (21.Be2 Rf6+=) 21...Rf6 (21...Ke8 22.Rd1+=) 22.Qe3+/– Be6 (22...Rg6 23.Rd1+=) 23.Qc3 (23.f3 Ke8+/–) 23...Bd7 (23...Ke8 24.Rb1+/–) 24.Be2 (24.Rc1 Rf4 25.f3 g5+/–) 24...Be8 (24...Ke8!?+=) 25.Rd1+– Nf7 (25...Bd7 26.Qa5 Ke8 27.Qa7+–) 26.Nc5 Bd7 27.Nd7 Qd7 28.Bc1 (28.Qg3 g6+–) 28...Ke8+/– 29.Be3 Qb7 (29...Kf8 30.Qa5+/–) 30.a4 (30.Bc4 Kf8+/–) 30...Bb4 31.Qc4 (31.Qb3 Qe7+/–) 31...a5 32.Bc5 (32.Bh5 g6 33.Bg4 Rd6+/–) 32...Bc5+= 33.Qc5 Qc7 (33...Qb4 34.Qc2+=) 34.Bc4 Nd8 (34...Rg6 35.h3+/–) 35.Rd5 Nb7 (35...Rf7 36.Re5 Re7 37.Re7 Qe7 38.Qa5 Qe4 39.Qc3+–) 36.Re5+– Kd8 37.Qd4 Rd6 38.Qa1 (38.Qc3!?+–) 38...Qd7 39.Be2 Rd2 40.Kf1 Rd4? (better is 40...Qd4!? 41.Qd4 Rd4+/–) 41.Bg4+– Qd6 42.Re6 Qb4 43.Rc6 Nc5 44.Qc1 Do you see the mate threat? 44...Ne4?? (better is 44...Qc4 45.Qc4 Rc4 46.Rc8 Ke7+–) 45.Rc8 Ke7 46.Qc7 Kf6 47.Qf4 Kg6 48.Qf5 1–0. Basman,Michael J – Davies,Peter, 1979.

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

3.g4 Bc8 4.Nf3 (4.Bb2!?+=) 4...Bg4–/+ 5.e4?? (better is 5.Bb2–/+) 5...de4–+ 6.d3 (6.Be2 ef3 7.Bf3 Bf3 8.Qf3–+) 6...Bf3 7.Qd2 Bh1 8.Bh3 (8.de4 Nc6–+) 8...ed3 9.cd3 Nc6 10.Bb2 Nd4 11.Bd4 Qd4 12.Qc3 Rd8 13.Qd4 Rd4 14.a3 Rh4 15.Bf1 Rh2 16.Nc3 Bf3 (16...e5 17.Ke2–+) 17.Kd2 Nh6 18.Ke3 Bc6 19.b5 Nf5 20.Ke2 Bg2 (better is 20...Nd4 21.Ke3 Nc2 22.Kf4 Na1 23.bc6 Rf2 24.Kg3–+) 21.Bg2 Rg2 22.Ne4 Nd4 23.Kf1 Rh2 24.Kg1 Nf3 25.Kf1 Rh1 26.Ke2 Nd4 27.Ke3 Nc2 28.Kd2 Na1 29.f4 Rh2 30.Kc3 e5! 31.fe5 (31.fe5 Ba3 Discovered attack (31...Rc2 Deflection)) 31...Rc2 32.Kd4 Nb3 33.Kd5 c6 34.bc6 bc6 0–1. karlsdad – Board_Pirate, ChessWorld.net, 2013.

3.g4 Be4 4.f3 Bg6 5.Bb2 e6 6.h4 f6 (6...h5 7.g5+=) 7.h5 (7.a3 h5=) 7...Bf7+= 8.c3 (8.a3 Bd6+=) 8...Bd6 9.f4 (9.Qc2 Ne7+=) 9...Nd7 (9...Nh6 10.Nh3+=) 10.Nf3 (10.Na3 a6+=) 10...e5–/+ 11.Qe2 Ne7 (11...Qe7 12.fe5 Ne5 13.Ne5 Be5 14.Qf3–/+) 12.h6+= g6 13.fe5 (13.Na3 a6+=) 13...fe5 14.Qb5 (14.Ng5 0–0+=) 14...0–0 (14...b6 15.Ng5–/+) 15.Qb7 c5 (15...a5 16.Bb5–/+) 16.Bb5 (better is 16.Qa6 Nb8 17.Qe2+=) 16...Nb6?? (better is 16...Be6 17.Qa6 A) 17...Rf3 18.Qd6 Bg4 A1) 19.bc5? Rf6 20.Rg1 Rb8–+ (worse is 20...Rd6 21.cd6 Rb8 22.a4–+); A2) 19.Bd7 Qd7 20.Qd7 (20.bc5 Qb5 21.Qa6 Qa6–+; 20.Qc5 Rf2 21.Na3 Re2 22.Kd1 Rh2 23.Kc1 Rh1 24.Kc2 Qa4 25.Kd3 Rh2–+; 20.Qe5? Nc6 21.Qg5 Qe6–+) 20...Bd7 21.bc5+=; B) 17...Bg4 18.Qd6 Rf3 B1) 19.bc5 Rf6 20.Rg1 Bf5 (worse is 20...Rd6 21.cd6 Rb8 22.a4–+) 21.Bd7 Rd6 22.Bf5 Nf5 23.cd6 Ne3 24.de3 Qh4 25.Kd1 Qh2 26.Rg6 hg6–+; B2) 19.Bd7 Qd7 B21) 20.bc5 Qb5 21.Qa6 Qa6–+; B22) 20.Qc5 Rf2 21.Na3 Re2 22.Kd1 Rh2 23.Kc1 Rh1 24.Kc2 Qa4 25.Kd3 Rh2–+; B23) 20.Qe5? Nc6 21.Qg5 Qe6–+ (worse is 21...cb4 22.Rg1 Raf8 23.a3–+); B24) 20.Qd7 Bd7 21.bc5+=; C) 17...Qc7–/+) 17.bc5+/– Bc5 18.Ne5 Qd6 19.c4 (better is 19.d4!? a6 20.dc5 (20.Nf7? Qg3 21.Kd1 ab5–+) 20...Qe5 A) worse is 21.Qb6 Rfb8 22.Be2 Rb6 23.cb6 Qe3–+; B) 21.Ba6? Rab8 22.Qb6 Qg3 (worse is 22...Rb6 23.cb6 Qe3 24.Kd1–+) 23.Kd2 Qg2 24.Be2 Qh1–+; C) 21.cb6 ab5 22.Rh3=) 19...Rab8 (19...a6 A) 20.Nf7? Qg3 21.Kd1 Rf7–+ (21...Qg4?! 22.Kc1 ab5 23.Ne5–/+); B) 20.d4 Bb4 21.Ke2 dc4 22.Nf7 Rf7 23.Bc4 Nc4 24.Qa8 Rf8 25.Qg2 Nb2 26.Rf1 Rf1 27.Qf1–+) 20.Qa6 (20.Qa7? Nc4 21.Qa6 Rb6 22.Bc4 dc4–+) 20...dc4 (20...d4 21.Nf7 Qg3 22.Kd1 Qf3 23.Kc2 A) 23...Rf7 24.ed4 (24.Qa7?? d3 25.Kb3 Nc6 26.Qb8 Nb8–+) 24...Qh1 25.Nc3+=; B) 23...Qh1–/+) 21.Rh3? (better is 21.Rf1!? Bd5 22.Rf4+=) 21...Bd5–/+ 22.Bc3 0–1. themonkey – marjan_79, GameColony.com, 2002.

3.h3 Nc6 4.c3 Nf6 5.f3 e5–/+ 6.e4? de4 7.fe4 Be6?? 8.g4? Ne4–+ 9.c4 Nb4 10.h4 Ng3 11.a4 Nh1 12.d3 Ng3 13.g5 Nf1 14.Kf1 Nd3 15.Qd3 Qd3 16.Kf2 Qc2 17.Kf1 Bc4 18.Ke1 Qc1 19.Kf2 Bc5 20.Kg2 Qg1 (20...Qg1 21.Kf3 Qf2 22.Kg4 Be6 23.Kh5 Qf3; 20...Qf1 21.Kg3 Qf4 22.Kg2 Qf2 23.Kh1 Qg1) 0–1. mrspock – islanderfan, net–chess.com, 2001.

3.Qh5 Bc2 4.Qe2 e5 –/+.

3.Qh5 Bg6 4.Bb5?? c6–+ 5.Bc6 Nc6 6.Qe2 Nf6 7.a3 e6 8.d3 Bd6 9.Bb2 0–0 10.Nf3 e5 11.0–0 Re8 12.Re1 d4 13.ed4 ed4 14.Qd2 Re1 15.Qe1 Qb6 16.Nbd2 Re8 17.Ne4 Ne4 18.de4 Be4 19.Rd1 Kf8 20.Bd4 Nd4 21.Rd4 Bf3 22.Qd2 Be5 23.gf3 Bd4 24.c3 Bf6 25.Qd3 Rd8 26.Qh7 Bc3 27.Qh8–+ Ke7 28.Qh4 Bf6 29.Qe4 Kf8 30.h4 Qe6 31.Qb7 Bh4 32.Qa7 Qe1 33.Kg2 Qe7 34.b5 Qa7 35.a4 Qa4 (36.Kh3 Bf2 37.Kg2 Rd1 38.Kf2 Qh4 39.Ke3 Qd4 40.Ke2 Qd2#; 35...Qf2 36.Kh3 Qg3#) 0–1. jorginho20 – mazz19, caissa.com, 2007.

3.a3 Nf6

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

4.d4 e6 5.c4 dc4 6.Bc4 (6…a5 7.b5=). Netsurferdude – MiserableBoris, ChessWorld.net, 2005.

3.Bb2

3.Bb2 (--> 1.b4 d5 2.Bb2 Bf5 TESTC600 3.e3).

3.Bb2 Nd7 4.c4 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.c4 Nd7).

3.Bb2 Nd7 4.c4 c6 5.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.Nf3 Nd7 5.c4).

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

3.Bb2 e6 4.b5 Nf6 5.Nf3 Bd6 6.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.b5 Nbd7 6.Be2 Bd6).

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

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

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

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

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

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

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

3.Bb2 Nf6 4.f4 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.f4 Nf6).

3.c4 c6

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

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

3.c4 e6

4.a3 dc4 5.Bc4 a5 6.b5 =+.

4.a3 Be7 5.Nc3 Nf6 6.Nf3 0–0 7.Be2 Nbd7 8.0–0 a5 9.b5 Nb6 10.cd5 ed5 11.Na4 Nc4 12.d3 Nd6 13.Nd4 Bd7 14.Rb1 Nf5 15.Nf5 Bf5 16.Bb2 Bd6 17.Rc1 Qe7 18.Qb3 Rad8 19.Rfe1 Rfe8 20.Bf3 Ng4 21.g3 (21.Bd5 Qh4 22.Rc2 Qh2 23.Kf1 Bg3 24.Bf7 Kf8–+) 21...Ne5 (21...Be6 22.Qc3 (22.Bd5? Bd5 23.Qd5 Bg3–+) 22...Ne5 23.Bg2+=) 22.Be5+= Qe5 23.d4 Qe7 24.Nc5 c6 25.bc6 bc6 26.Qb6 Rc8 27.Qa5 Ra8 28.Qc3 Ra7 (28...Reb8 29.Bg2+/–) 29.a4 Rea8 30.e4 de4 31.Be4 Be4 32.Re4 Qg5 33.Rce1 h6 (33...Bc5 34.dc5 Qd8 35.Qd3+/–) 34.Re8+– Re8 35.Re8 Kh7 36.Ne4 Qd5 37.Qc2 f5 38.Nd6 Qd6 39.Qf5 g6 40.Qe5 Qe5 41.de5 (41.Re5?! Ra4 42.Re7 Kg8+/–) 41...Ra4 42.Re7 Kg8 43.Re6 Kf7 44.Rf6 Kg7 45.Rc6 Re4 46.Rc7 Kf8 47.Rc5 Kf7 48.Kf1 Ke6 (48...g5 49.Kg2+–) 49.Rc6 Kf5 (49...Kf7 50.f4+–) 50.Rf6 Kg5 51.f4 Kh5 52.Kf2 g5 53.h3 gf4 54.gf4 Ra4 55.e6 Re4 56.Kf3 Re1 57.Rf5 Kh4 (57...Kg6 58.Re5 Re5 59.fe5+–) 58.Re5 Rf1 59.Ke2 (59.Ke2 Ra1 60.e7+–) 1–0. Ivanets,Vladimir (2265) – Sibriaev,Aleksandr (2245), Khanty Mansiysk Governor Cup, 2007.

4.a3 Nf6 5.Nc3 (5.d4 a5+=) 5...Be7 (5...a5 6.b5+=) 6.Bb2 0–0 7.Nf3 h6 (7...Nc6 8.Nh4 Bg4 9.Qc2+=) 8.cd5 ed5 9.Be2 Nbd7 (9...a5 10.b5=) 10.0–0 c6 (10...a5 11.Nd4 Bg6 12.b5=) 11.Qb3 (11.Nd4 Bg6=) 11...Qc7 (11...a5 12.Nd4 Bg6 13.f4=) 12.a4 White intends b5 (12.Rac1 Qd6=) 12...Ng4 (12...Qd6 13.Nd4 Bg6 14.a5+=) 13.h3 Nge5 (13...Ngf6 14.Nd4 Bh7 15.a5=) 14.Ne5 (14.Nd4 Bg6+=) 14...Ne5= 15.b5 Rab8 (15...Rfe8 16.Rfc1 Qd6 17.d4=) 16.a5 (16.Rfc1 Qd6+=) 16...a6 (16...Rfe8 17.d4 Ng6 18.Rfc1+=) 17.b6 (17.Rfc1 Nc4 (17...ab5? 18.Nb5 Qd7 19.Be5+–) 18.Bc4 dc4 19.Qc4 Qd8 20.bc6 bc6+=) 17...Qd6 18.Ba3 Qe6 19.Be7 Qe7 20.Rac1 (20.d4 Ng6+=) 20...Ng6 (better is 20...Nd7=) 21.Nd5 (better is 21.d4!?+=) 21...cd5–/+ 22.Qd5 Be4 23.Qh5 (better is 23.Qc5–/+) 23...Qg5 (better is 23...Rfd8 24.Rc7 Qe8–/+) 24.Qg5= hg5 25.Rc4 (25.Rc7 Ne5=) 25...f5 (25...Rfe8 26.Rc7=) 26.d3 (26.Rc7 Kh7=) 26...Bc6 (26...Bd5 27.Rc7=) 27.f3 (27.Rc6 bc6 28.d4 Ra8=) 27...Rbc8 (27...Rbd8 28.Rfc1+=) 28.Rfc1 (28.d4=) 28...Bd7 (better is 28...Rfe8!? 29.Kf2 Rcd8=) 29.Rc7+= Bc6 (29...Kh7+=) 30.Rc8 (30.d4!? Rc7 31.bc7+=) 30...Rc8= 31.e4 (31.d4 Ne7=) 31...Nf4+= 32.Kf2 (32.Bf1 Rd8 33.Rc5 g6+= (worse is 33...Nd3 34.Rf5 g4 35.hg4=)) 32...Bd7 (32...Rd8!? 33.Rc3 Re8+=) 33.Rc8= Bc8 34.d4 Ne2 (34...Kf8 35.Bf1=) 35.Ke2 Kf7 36.Kd3 Ke6 37.g4 (37.Kc4!?=) 37...f4 38.Kc4 (38.d5 Ke5 39.Kc3 Bd7–/+) 38...Kd6 (better is 38...Bd7 39.Kd3 Bb5 40.Kd2 Bf1–/+) 39.e5? (better is 39.d5+=) 39...Ke6–+ 40.Kd3 (40.Kc3 Bd7 41.Kd2 Bc6–+) 40...Kd5 (better is 40...Bd7–+) 41.Kc3 Be6 42.Kd3 Kc6 (42...Kc6 43.Ke4 g6–+) 0–1. Schrage,Jos – Hommerson,Paul, Hengelo op–D, 1992.

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

4.Qb3 Nf6–/+ 5.Nf3 Be7 (5...Nc6 6.Ba3+=) 6.Nc3 0–0 7.cd5 ed5 8.b5 Qd6 9.a4 c5 (9...Nbd7 10.Ba3 Nc5 11.Qb2+=) 10.Ba3 (10.bc6 Nc6 11.Ba3 Qd7=) 10...Nbd7 11.d4 (11.Be2 h6+=) 11...Rac8 12.Be2 h6 13.0–0 Qe6 (13...Rfe8 14.dc5 Nc5 15.Qa2+=) 14.dc5= Nc5 15.Bc5 (15.Qa2 Rfd8=) 15...Bc5 16.Rfd1 The pressure on the isolated pawn grows 16...Rfd8 (16...Be3 17.Nd5 Bc5 18.Bc4+=) 17.Nd4 Bd4 18.Rd4 Rc5 19.Bf3 The pressure on the isolated pawn grows 19...Rdc8 20.Nd5 (20.Bd5?? Nd5 21.Rd5 Rc3 22.Rd8 Rd8 23.Qc3 b6–+) 20...Rc1 21.Rd1 Ra1 22.Ra1 Be4 (22...Kh8 23.h3=) 23.Be4+= Ne4 24.f3 Nc3 25.e4 Nd5 (25...b6 26.Re1+/–) 26.ed5 (26.Qd5!? Qb6 27.Kh1+=) 26...Qe2= 27.Qd1 Qe3 28.Kf1 Kf8 (28...Qe5 29.h3 Rc5 30.Rc1 Rc1 31.Qc1 Qd5 32.Qc7=) 29.Qe2 (29.d6!? Qe5 30.Ra2+/–) 29...Qe2= 30.Ke2 Ke7 31.Kd3 Kd6 32.Re1 Rc5 (worse is 32...Kd5 33.Re7 Rc4 34.Rd7 (34.Rf7?! Ra4 35.Rb7 g5+=; 34.Rb7?! Ra4 35.Rf7 g5+=) 34...Ke6 35.Rf7 (worse is 35.Kc4 Kd7 36.Kd5 f6+=) 35...Ra4 36.Rg7+/–) 33.Re2 Rd5 (worse is 33...Kd5 34.Re7 a6 35.Rd7 (worse is 35.Rf7 ab5 36.ab5 Rb5+=) 35...Ke6 36.Rb7 ab5 37.ab5 Rd5 38.Ke3+/–) 34.Kc4 Rc5 35.Kd4 Rc1 36.Ra2 Rb1 37.Kc4 Rd1 38.Re2 Ra1 39.Kb4 Rb1 40.Kc4 a5 41.ba6 ba6 42.g3 a5 43.Ra2 Rb4 44.Kc3 f5 (44...f6 45.Rd2 Kc5 46.Rd7=) 45.f4 (45.Rd2 Kc5=) 45...g5 (45...Kc5 46.Ra1+=) 46.fg5 hg5 47.Kd3 Ke5 48.Ke3 Rb3 49.Kf2 Rb4 50.Kf3 Kf6 51.Ra3 Rb2 52.h4 (52.h3 Rb4=) 52...gh4–/+ 53.gh4 Rb4 54.Kg2 Rg4 (54...Rh4!? 55.Kg3 Rb4–/+) 55.Kh3= Kg6 56.Rg3 Rg3 ½–½. Deveque,Guillaume (1890) – Sally,Paul_Adrien (2080), Avoine FRA, 2014.

4.cd5 ed5 5.Bb2 Nf6 =+ (5...Bb4?? 6.Bg7 d4 7.Bh8+–).

4.cd5!? ed5 5.Nf3 +=.

3.Nf3 e6

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

4.a3 Nf6 5.d4 Be7 6.Be2 0–0 7.0–0 c6 (7...Ne4 8.Ne5=) 8.Nh4 Bg4 9.f3 (9.Bg4 Ng4 10.Qg4 Bh4=) 9...Bh5=+ 10.g4 Nfd7 11.Ng2 Bg6 12.Nf4 b5 13.e4 a5 14.ba5 Ra5 15.Ng6 fg6 16.Nd2 Qb6 17.Nb3 Ra4 18.Kh1 Qa7 19.Qd3 Ba3 20.Ba3 Ra3 21.Ra3 Qa3 22.e5 g5 23.Qe3 Qe7 24.Ra1 Nb6 25.Nc5 h6 26.Ra2 Qe8 27.Qc3 Qf7 ½–½. Benassi,Aspasio – Zbroja,Tadeusz, corr 3GMM½–10, 1998.

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

4.Bb2 Nf6 5.a3 Be7 6.c4 c6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 c6 6.a3 Be7).

3.Nf3 Nf6

4.Bb2 e6 5.a3 Nc6 6.c4 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 Nc6 6.a3).

4.c4 e6+= 5.cd5 (5.Qa4 Qd7 6.b5 Bd6+=) 5...ed5 (5...Nd5 6.a3+=) 6.a3 Bd6 7.Bb2 Nbd7 8.Nc3 0–0 9.Rc1 c6 10.h3 (10.Be2 Ne5+=) 10...Re8 11.Be2 Qe7 12.0–0 Bg6 (12...Ne5 13.Nd4 Bg6 14.Qb3+=) 13.Nd4 White intends b5 (13.Nh4 a5+=) 13...a5 14.f4 (14.ba5 Nc5+=) 14...h6 (14...ab4 15.ab4 h6–/+ (worse is 15...Bb4 16.f5+=)) 15.b5? (better is 15.ba5!? Ra5 16.a4+=) 15...c5–/+ (15...Ba3?! A) 16.bc6 Bb2 17.cd7 Red8–+ (17...Qd7 18.Bb5 Qe7 19.Be8 Re8 20.f5=); B) 16.Ba3 Qa3 17.bc6 bc6 18.Nc6+=) 16.Nc2 (better is 16.Nb3!?–/+) 16...d4!–+ 17.ed4 cd4 (17...Bc2 18.Qc2 cd4 19.Rce1 dc3 20.Qc3–+) 18.Nd4 Bc5 (18...Ba3?! 19.Ba3 Qa3 20.Nc2 Bc2 21.Rc2+=) 19.Na4 Bd4 20.Bd4 Qe2 21.f5 Qd1 (21...Bh7 22.Qe2 Re2 23.Rc7 Rd2 24.Bf6 Nf6 25.Rb7–+) 22.Rcd1 (22.Rfd1? Bf5 23.Nc5 Nd5 24.Nb7 Nf4–+) 22...Bh7 23.b6 (23.Rc1 Rac8 24.Rc8 Rc8–+) 23...Nd5 (23...Re4 24.Bf6 Ra4 25.Bb2–+) 24.Nc3 (24.d3 Ne3 25.Be3 Re3–+) 24...N7b6 25.Rb1 Nc3 26.dc3 (26.Bc3 Nc4–+) 26...Nd5 (better is 26...Nc4!? 27.Rb7 Na3 28.g4–+) 27.Rb7 Ne3 28.Rf3 (28.Be3 Re3 29.Rc7 Kf8–+) 28...Nf5 29.Bf2 (29.Bb6 Re7 30.Re7 Ne7–+) 29...Bg6 (29...Nd6 30.Rd7 Rad8 31.Rd8 Rd8 32.Bb6–+) 30.g4 (30.Rd3 Rad8 31.Rd8 Rd8–+) 30...Nd6 31.Rb6 (31.Rb3 Nc4 32.Rf4 Rec8–+) 31...Nc4 32.Rb7 Be4 (32...Be4 33.Rff7 Bb7 34.Rb7 Rab8–+) 0–1. Campos Calvo Sotelo,Ju (2085) – Gonzalez Arribas,V (2295), III Open, Calvia ESP, 2006.

3.Nf3 h6

4.c4 e6 5.Bb2 Nf6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 h6).

4.c4 e6 5.b5 Nf6 6.Nc3 dc4 7.Bc4 Be7 8.0–0 0–0 9.Bb2 Nbd7 10.Ne2 Nb6=+ 11.Bb3 Bd3 12.Ne5 Bb5–/+ 13.Re1 Bd6 14.Nf3 Nc4 15.Bf6 Qf6 16.Bc4 Bc4 17.d4 Qf5 18.Ng3 Qh7 19.Nh5 Rfe8 20.Ne5 Be5 21.de5 Qf5 22.f4 Red8 23.Qf3 Qc2 24.Rec1 Qd3 25.Rd1? Qe2–+ 26.Qe2 Be2 27.Rd8 Rd8 28.Ng3 Rd1 29.Rd1–/+ Bd1 30.Ne4 Kf8 31.Kf2 Bc2 32.Nc3 c5 33.Nb5 Ba4 34.Na7=+ Bd7 35.Ke2 Ke7 36.Kd3 b5 37.a3 g6 38.Kc3 Kd8 39.Kb3 Kc7 40.a4? ba4 (40...ba4 41.Kb2 Kb6–+) 0–1. gtate (1890) – redrook (2375), net–chess.com, 2003.

3.g4 Bg6

4.Nf3 Be4 5.Nc3 Bf3 6.Qf3 c6 7.d4 (7.e4 d4 8.Ne2 Nd7=) 7...e6 (7...e5 8.de5 Bb4 9.Bd2–/+) 8.a3= Nf6 (8...b5 9.Bd3=) 9.g5 Ng8 10.h4 (10.e4 de4 11.Qe4 Ne7=) 10...Bd6 (10...b5 11.e4=) 11.e4+= (11...a5 12.b5+=) +=. Caissa – 300SPARTANS, Live Game Caissa's Web, 2004.

4.Nf3 e6 5.Bb2 Nf6 (5...Bb4?? 6.Bg7 h5 7.Bh8 hg4 8.Ne5+–) 6.g5 Ne4 7.h4 h5 8.d3 Nd6 9.Nbd2 Nd7 10.c4 c6 11.c5 Nb5 12.e4 a5 13.ed5 ed5 14.Qe2 Qe7 15.Qe7 Be7 16.a4 Nc7 17.Bg7 Rg8 18.Be5 Ne5 19.Ne5 ab4 20.d4 Ne6 21.Ng6 fg6 22.Nb3 Kf7 23.Rh3 Rge8 24.Rf3 Kg7 25.Re3 Nf4 (25...Ng5!? 26.hg5 Bg5 27.Re8 Re8 28.Be2 h4=) 26.Kd2 Bf8 27.Rae1 (27...Re3 28.fe3+/– (28.Ke3 Re8 29.Kd2 Re1 30.Ke1 Be7=)) 1–0. pozarski (2085) – NN, GameColony.com, 2002.

4.Nf3 f6 5.d4 e6 (5...Nh6 6.Nh4 Bf7 7.Nf5+=) 6.Bd2 (6.a3 a5+=) 6...Bd6 (6...Be4 7.c4+=) 7.Nh4= Bf7 8.c4 c6 (8...dc4 9.Bc4 Ne7 10.Qb3+=) 9.cd5 (9.c5 Bc7=) 9...cd5+= 10.Bd3 (10.Nf3 Nc6+=) 10...Ne7 (10...g5 11.Ng2+=) 11.Qc2 (11.Qa4 Nd7+=) 11...g6 (11...h5 12.gh5 Rh5 13.Ng2–/+) 12.Qa4 (12.Nf3 e5 13.de5 fe5+=) 12...Nd7 (12...Qd7 13.Qd7 Nd7 14.Nc3+=) 13.f4 (13.Na3 a6+=) 13...a6 (13...e5 14.Nc3+=) 14.0–0 (14.Nf3 b5 15.Qa3 0–0+=) 14...b5 (14...e5 15.de5 fe5 16.Bc3+=) 15.Qb3= White gets strong initiative 15...0–0 (15...e5 16.a4 e4 17.Be2 ba4 18.Ra4=) 16.a4 Qb6 (16...ba4 17.Ra4 Qb6 18.Qa2=) 17.ab5+= ab5 18.Ra5 e5 (18...Rfc8 19.Nf3+=) 19.Bb5 Ra5 (19...Qb7 20.Nc3+=) 20.ba5+/– Qa7 (20...Qb7 21.Qa4 Be8 22.Nc3+/–) 21.Bb4 Qc7? (better is 21...Nc8!? 22.Nf3 ef4 23.ef4 Rd8+/–) 22.Bd6+– Qd6 23.Qa3 Qa3 24.Na3 Rd8 (24...Nb8 25.a6 Nbc6 26.de5 fe5 27.f5 gf5 28.gf5+–) 25.fe5 fe5 26.Nf3 e4 27.Ng5 Be8 28.a6 Nf8 (28...Nb6+–) 29.Rf8! (29.Rf8 Kf8 30.Ne6 Kg8 31.Nd8+–) 1–0. wesolyPolak (1810) – NN, GameColony.com, 2002.

4.Nf3 Nf6 5.Ne5 (5.g5 Nh5+=) 5...Nbd7 6.Ng6 hg6 7.c3 (7.a3 Rh4 8.Be2 e6+=) 7...e5 8.d4 (8.d3 a5 9.b5 e4 10.de4 de4+=) 8...e4 (8...ed4 9.Qd4 Rh4 10.h3–/+) 9.Nd2 (9.h4 g5 10.h5 Bd6+=) 9...Nb6 (9...Rh4 10.Be2–/+) 10.a4+= Qd7 (10...a5 11.Ba3+=) 11.a5= Nc8 12.Be2 (12.a6 b5= (12...Ng4? 13.ab7 Rb8 14.bc8N Qc8 15.h3+–)) 12...Nd6 (12...g5 13.f4 ef3 14.Nf3+=) 13.h3 (13.g5 Nh7 14.Rg1 Be7+=) 13...c6 (13...g5 14.Qb3+=) 14.Qb3 White intends b5 (14.Bb2 g5+=) 14...Be7 (14...g5 15.Bb2+=) 15.c4 dc4 16.Nc4 Nc4 17.Bc4 (17.Qc4 g5+=) 17...Nd5 (17...Bd6!?+=) 18.b5= 0–0 (18...Bb4 19.Bd2 Bd2 20.Kd2+=) 19.bc6 (19.0–0 Rad8+=) 19...bc6 20.Qc2 Qe6 21.Rb1 Rab8 22.Rb3 (22.0–0 Rb1 23.Qb1 Bd8+=) 22...Rb3 23.Qb3 Qd6 (23...Qf6 24.Qc2=) 24.Qc2 (24.0–0 Rb8 25.Qc2 Bd8+=) 24...Bh4 (24...Rb8 25.0–0 Bd8 26.a6=) 25.Qa4 (25.0–0 Re8+=) 25...Rb8= 26.0–0 Rb4 (26...Nc3 27.Qc2 Qb4 28.Bd2 Qc4 29.Bc3=) 27.Qc2 (27.Qa2 Qe6+=) 27...Qb8 (27...Bd8 28.a6=) 28.f4 (28.Ba6 Qe8+/–) 28...ef3 (28...g5!?=) 29.Rf3+= Rb1 (29...Bg5 30.Kg2+=) 30.Bf1 (30.Kg2+=) 30...Rb7 (30...Qb4!?+=) 31.Qc6+/– Nf6 32.e4 (32.Ba3 Rb1+/–) 32...Rc7 (32...Re7 33.e5 Rc7 34.Qd6+=) 33.Bf4 Rc6 34.Bb8 Ne4 35.Bd3 Rc1 (35...Nd2 36.Re3 a6 37.Bf4+/–) 36.Rf1 Rf1 37.Kf1 Nd2 38.Ke2 (38.Ke2 Nb3 39.Ba7 Na5 40.Be4+/–; 38.Kg2 a6+/–) 1–0. COMP – mtre, internet, 2002.

4.Nf3 h5 5.Ne5 Rh6 (Better is 5...Be4 6.f3 Bh7=+) 6.g5+/– Rh8 7.Ng6 fg6 8.Bd3 (8...Qd6 9.f4+/–) 1–0. Caissa – 300SPARTANS, Live Game Caissa's Web, 2004.

4.Nf3 h6 5.Ne5= e6 6.Ng6 fg6 7.c3 (7.a3 Qh4=) 7...Nf6 (7...Qh4 8.d4=) 8.d4 Bd6 9.Bd3 (9.Qc2 Kf7=) 9...g5= 10.h3 (10.f4 0–0=) 10...Nc6 (10...0–0 11.Qb3+=) 11.Bg6 (11.b5 Ne7=) 11...Ke7 (11...Kd7 12.b5 Ne7 13.Bd3=) 12.e4 (12.b5 Na5+=) 12...de4 (12...Ne4 13.Be4 de4 14.Qe2=) 13.0–0 (13.b5 Na5+=) 13...Kd7= 14.Nd2 The isolani on e4 becomes a target (14.Qe2 Kc8=) 14...Ne7 15.Be4 Ne4 (15...Kc8 16.Bg2=) 16.Ne4+= Nd5 (16...Kc8 17.f4+=) 17.Re1 (17.c4 Nf6 18.Nd6 cd6 19.f4+=) 17...Nf4 (17...Kc8!?+=) 18.Bf4+/– Bf4 (18...gf4 19.Nc5 Kc8 20.Ne6+/–) 19.Nc5+– Kc8 20.Ne6 (20.Qd3 a6+–) 20...Qd5 (20...Qf6 21.Qa4+/–) 21.Ng7+– b6 (21...Qd7 22.Ne6+–) 22.Re7 (22.Qd3 Kb8+–) 22...Kb7 (22...Kb8 23.Qe2+–) 23.Qb3 (23.Qe2 Rad8+–) 23...Qf3 (23...Qb3 24.ab3 Rh7 25.Nf5 Re7 26.Ne7+–) 24.c4 Threatening mate... how? 24...Qb3 25.ab3 Bd6 26.Re6 (26.Re4 Bb4 27.Ne6 Rae8+–) 26...Bb4 27.Ra4 (27.Nf5 h5+–) 27...Bc3 (27...a5 28.Ra2+–) 28.Nf5 Rad8 (28...Rae8 29.d5+–) 29.d5 a5 30.Re7 (30.Rh6 Rh6 31.Nh6 Rd7+–) 30...Kb8 (better is 30...b5 31.Ra2 Bb4+/–) 31.Re6?? (31.Ra2 h5+–) 31...Bb4?? (31...Kb7 32.Nh6 Rh7+–) 32.Nd4+– Kb7 33.Nc6 Rdf8 (33...Rd6 34.Nb4 Re6 35.de6 ab4 36.Kg2+/–) 34.Nb4 ab4 35.Rb4 Rf7 (35...Rf4 36.Kg2+–) 36.c5 Rhf8 37.cb6 (37.Rh6?! Rf2 38.c6 Kc8=) 37...cb6? (37...Rf2 38.bc7 Kc8 39.Rb8 Kc7 40.Rf8 Rf8+–) 38.Reb6 (38.Rbb6 Ka7 39.Ra6 Kb7 40.Reb6 Kc8 41.Ra8 Kc7 42.Rc6 Kb7 43.Rf8 Rf8 44.Rh6 Rf3+–) 38...Ka7 39.d6 (better is 39.R6b5!? Ka6+–) 39...Rf2 40.Rb7 Ka6 (40...Ka8 41.Rb8 Rb8 42.Rb8 Kb8 43.Kf2+–) 41.R4b6 Ka5 42.b4 Ka4 43.Ra6 Kb3 44.d7 (better is 44.Ra1 Rd2 45.b5+–) 44...Rf1= 45.Kg2 R1f2 46.Kg1 Rf1 47.Kg2 R8f2 48.Kg3 Rf3 49.Kg2 R1f2 50.Kg1 Rf1 51.Kg2 R3f2 52.Kg3 Rf3 53.Kg2 ½–½. marekt – rudolfonzo, GameColony.com, 2002.

4.Nf3 h6 5.Ne5= e6 6.Ng6 fg6 7.c3 (7.a3 Qh4=) 7...g5 (7...Qh4 8.d4=) 8.d4 Bd6 (8...Nf6 9.Qd3=) 9.e4 (9.Qd3 Qe7+=) 9...de4= 10.Qe2 Nf6 11.Qb5 (11.Nd2 a5 12.b5 c5 13.bc6 Nc6 14.Ne4 0–0+=) 11...Nbd7 12.Qb7 Bf4 (12...e5 13.h4 Rb8 14.Qa7 gh4 15.d5= (worse is 15.Rh4 ed4 16.Qd4 Ne5+/–)) 13.Na3 (13.Bf4 gf4 14.Qc6 Kf7+=) 13...Nd5 (13...a5 14.Bf4 gf4 15.Nb5+=) 14.Qc6 Qe7?? (better is 14...Kf7+=) 15.Qa8+– Kf7 (15...Qd8 16.Qc6 Kf7+–) 16.Qh8 Nc3 17.Nc2 Qd6 (17...Bc1 18.Rc1 Na2 19.Rb1+–) 18.Be3 (18.Bf4 Qf4 19.h3 Nf6+–) 18...e5 (18...Nd5 19.Bg2+–) 19.Bc4 Kf6 (19...Nd5 20.Rd1 Qc6 21.Bd5 Qd5 22.Qd8+–) 20.Qd8 Qe7 21.Qc7 ed4 22.Bd4 (22.Bf4!? Kg6 23.Bd6 Qe8 24.Nd4 Kh7+–) 22...Kg6 23.Qa7 e3 24.Bd3 Kf7 25.Bc3 ef2 26.Kf2 (26.Kf2 Bd6 27.Rad1+–) 1–0. marekt – rudolfonzo, GameColony.com, 2002.

2.e3 Nf6

3.a3 g6 4.Bb2 Bg7 5.f4 a6 6.Nf3 0–0 7.Be2 Nbd7 8.0–0 c5 9.Qe1 Qc7 10.Nc3 b5 11.Ne5 cb4 12.ab4 Bb7 13.Rb1 e6 14.Qh4 Ne5 15.fe5 Ne4 16.Rbd1 Be5 17.Rf3 Nc3 18.Bc3 Bc3 19.Rh3 f5 20.dc3 Rf7 21.g4 Qc3 22.gf5 ef5 23.Bd3 Re8 24.Rf1 Qf6 25.Qh6? d4 26.Re1 Qc6 27.Rg3 de3 28.Ree3 Re3 29.Qe3 f4 (29...f4 30.Qf3 fg3 31.Qc6 gh2 32.Kh2 Bc6–+) 0–1. Heinola – Kuutti, KankSK club, 1984.

3.Bb5 c6 4.Ba4 b5 5.Bb3 e5 6.d3 Bb4–+ 7.Bd2 Bd6 8.d4 e4 9.c4?? bc4 10.Ba4 Bd7 11.f4 Bg4 12.Nc3 Bd1 13.Kd1 Ng4 14.Ke1 0–0 15.h3 Qh4 16.Kd1 Nf2 17.Ke2 Nh1 18.Kd1 Bb4 19.Nd5 Qh5 20.Ne2 Bd2 21.Kd2 cd5 22.Rh1 c3! 23.Kc3 Qe2 24.Rc1 Qe3 25.Kc2 Rc8 26.Kb1 Rc1 27.Kb2 Qc3# 0–1. Roseeis – Vauban, internet, 2006.

3.c3 a5 A) 4.b5 A1) 4...Nbd7 5.Nf3 (5.Ba3 e5 6.Bf8 Nf8 7.Nf3 Ng6 8.Be2 0–0 9.0–0 Bg4 10.d4) 5...e5 6.Be2 Be7 7.c4 e4 8.Nd4 Ne5 9.cd5 Nd5 10.Nc3; A2) 4...e6 5.d4 (5.Nf3 Bd6 6.c4 0–0 7.d4 c5 8.dc5 Bc5 9.Nc3 Qc7 10.Bd2; 5.c4 Nbd7 6.Nf3 Bd6 7.d4 dc4 8.Bc4 Nb6 9.Bd3 Nbd5 10.0–0; 5.Ba3 Nbd7 6.Bf8 Kf8 7.Nf3 e5 8.Be2 g6 9.0–0 e4 10.Nd4 ; 5.Bb2 Nbd7 6.Nf3 Bd6 7.c4 0–0 8.Nc3 Nb6 9.cd5 ed5 10.Qc2) 5...Nbd7 6.Nf3 Bd6 7.c4 0–0 8.c5 Be7 9.Nbd2 Ne4 10.Bd3; A3) 4...g6 5.Nf3 (5.c4 Bg7 6.Nc3 Nbd7 7.cd5 Nb6 8.Nf3 0–0 9.Bb2 Qd6 10.Qc1; 5.Be2 Bg7 6.Nf3 0–0 7.0–0 Nbd7 8.d3 Nc5 9.Ba3 b6 10.Nbd2) 5...Bg7 6.d4 Bf5 7.Nh4 Bd7 8.Bd3 0–0 9.0–0 c6 10.Na3; A4) 4...e5 5.Nf3 (5.c4 Nbd7 6.cd5 Nd5 7.Nc3 Nc5 8.Nf3 Nc3 9.dc3 Qd1 10.Kd1 Bd6) 5...Bd6 6.c4 0–0 7.Nc3 d4 8.ed4 ed4 9.Nd4 Bc5 10.Nb3; B) 4.Nf3–/+ B1) 4...e6 5.Qa4 (5.Ba3 ab4 6.cb4 Nc6 7.Qb3 Bd6 8.Bb5 0–0 9.Nc3 Qe7 10.Rb1; 5.b5 Nbd7 6.c4 Bd6 7.d4 Ne4 8.Bd3 0–0 9.Nbd2 Ndf6 10.Qc2; 5.Bb2 ab4 6.a3 bc3 7.Nc3 Nc6 8.Nb5 Bd6 9.Bd3 0–0 10.Nd6) 5...Bd7 6.b5 Na6 7.d4 c5 8.Ba3 Qb6 9.Ne5 Nc7 10.Nd7; B2) 4...g6 5.b5 (5.Be2 Bg7 6.b5 0–0 7.0–0 Nbd7 8.d3 Nb6 9.Nbd2 Qd6 10.a4; 5.Na3 ab4 6.cb4 Bg7 7.Nc2 Ne4 8.Ncd4 e5 9.Nc2 0–0 10.Bb2; 5.Ba3 Bg7 6.b5 Ne4 7.Be2 0–0 8.0–0 Be6 9.Nd4 Nd7 10.Ne6) 5...Bg7 6.d4 Bf5 7.Nh4 Be6 8.Bd3 c5 9.Nd2 Nbd7 10.Ba3; B3) 4...Bg4 5.h3 (5.b5 Nbd7 6.h3 Bf5 7.Be2 e5 8.c4 Bd6 9.cd5 Nd5 10.Nc3) 5...Bf3 6.Qf3 ab4 7.cb4 Nc6 8.Nc3 e6 9.b5 Nb4 10.Kd1.

3.c3 Nc6 A) 4.Na3 a6 (4...a5 5.b5 Ne5 6.f4 Bg4 7.Qc2 Ng6 8.Nf3 e6 9.Bb2 Ne4 10.Be2) 5.Nf3 (5.Be2 e5 6.Nf3 Bd6 7.0–0 0–0 8.Bb2 Bf5 9.Qb3 Qe7 10.Rfe1; 5.Bb2 e5 6.Nf3 Bd6 7.Be2 0–0 8.0–0 Bf5 9.Qb3 Qe7 10.Rfe1; 5.Qc2 g6 6.Nf3 Bg7 7.d4 Bf5 8.Bd3 Bd3 9.Qd3 0–0 10.0–0; 5.Qb3 e5 6.Nf3 Be7 7.Be2 0–0 8.0–0 Bf5 9.Bb2 Qd6 10.b5) 5...e5 6.Be2 Bd6 7.0–0 0–0 8.Bb2 Bf5 9.Qb3 Qe7 10.Rfe1; B) 4.Be2 a6 5.Nf3 (5.Na3 e5 6.Nf3 Bd6 7.0–0 0–0 8.Bb2 Bf5 9.Qb3 Qe7 10.Rfe1; 5.Bb2 e5 6.Nf3 Bd6 7.0–0 0–0 8.d3 e4 9.de4 de4 10.Nd4; 5.d3 g6 6.Nf3 Bg7 7.Nbd2 Qd6 8.Qb3 0–0 9.Ba3 Bf5 10.0–0; 5.f4 g6 6.Nf3 Bg7 7.0–0 0–0 8.d4 Qd6 9.Bd3 Bg4 10.Nbd2) 5...e5 6.0–0 Bd6 7.d3 0–0 8.Nbd2 Re8 9.e4 h6 10.ed5; C) 4.Nf3 C1) 4...Qd6 5.Qa4 (5.Na3 a6 6.b5 Ne5 7.ba6 ba6 8.Ne5 Qe5 9.Rb1 Bd7 10.Be2; 5.Ba3 Ne5 6.Ne5 Qe5 7.d4 Qf5 8.Bd3 Qg5 9.0–0 Bf5 10.Qe2) 5...Bd7 6.Na3 Nd4 7.Nb5 Nf3 8.gf3 Qb6 9.Qa5 Qa5 10.ba5; C2) 4...a6 5.d4 (5.Na3 e5 6.Be2 Bd6 7.0–0 0–0 8.Bb2 Bf5 9.Qb3 Qe7 10.Rfe1; 5.Bb2 e5 6.Be2 Bd6 7.0–0 0–0 8.Na3 Bf5 9.Qb3 Qe7 10.Rfe1) 5...Bf5 6.Nbd2 g6 7.Nh4 Bg4 8.Qb3 e5 9.h3 Bd7 10.de5.

3.c3 e5 4.d4 e4 5.Ba3 =+.

3.Nc3 e5 4.Ba3 Nc6 5.Bb5–/+ Bd7 6.Bc6 Bc6 7.Qc1?? d4–+ 8.Nge2 a6 9.ed4 ed4 10.Nb1 b5?? 11.0–0 Be7 12.c3 0–0 13.Nd4= Bd5 14.f3 Re8 15.d3 Bd6 16.c4 bc4 17.dc4+= Bc4? 18.Qc4+– Be5? 19.Nc6 Qd5 20.Qd5 Nd5 21.Ne5 Re5 22.Nd2 Rae8 23.Nc4 Rg5 24.Na5 Re2 25.Rf2 Nc3 26.Rc1 Rf2 27.Kf2 Nb5 28.Nc4 h5 29.f4 Rd5 30.Bb2 f6 31.Ke3 Kf7 32.Ke4 Ke6 33.a4 Nd6 34.Nd6 cd6 35.Rc4 Rd2 36.f5 Kd7 37.Bc3 d5 38.Ke3 Rg2 39.Rh4 Rg4 40.Rg4 hg4 41.Bd4 Ke7 42.Kf4 Kf7 43.b5 g5 44.Kg4 ab5 45.a5 (45.a5 Ke7 46.a6 Kd7 47.a7 Kc6 48.a8Q Kc7 49.Qa7 Kc6 50.Qb6 Kd7 51.Qb7 Kd6 52.Bb6 d4 53.Qe4 b4 54.Qe6#) 1–0. sgrant (2055) – mgoodrich (2080), net–chess.com, 2008.

3.c4 a5 (3...e6 4.b5+=) 4.b5= e5 5.Bb2 Nbd7 6.cd5 Nd5 7.Nc3 Nc3 8.Bc3 Bd6 9.Bd3 0–0 (9...Nc5 10.Bc2 e4 11.Ne2+=) 10.Qc2 h6 (better is 10...g6+=) 11.g4? (better is 11.Nf3=) 11...Nc5–/+ 12.Be2 e4 13.h4 (better is 13.Bd4 Qe7 14.Rc1–/+) 13...f5?? (better is 13...Re8–+) 14.g5+= h5 15.Nh3 f4 (15...Qe8 16.Bb2=) 16.Bd4 (better is 16.Nf4!? Bf4 17.ef4+=) 16...fe3+= 17.de3 (17.Bc5 Bc5 18.fe3 Bd6 19.Qe4 Kh8=) 17...Nd3 18.Bd3 ed3 19.Qc4 Kh8 20.Qd3 (20.0–0–0 Rf3 21.Nf4 Bf4 22.ef4 Bf5+=) 20...Bf5–/+ 21.Qe2 (21.Qc4 Qe7 22.f4 Rac8–/+) 21...Bb4 (21...Bg4 22.Qc4 Qd7–+) 22.Kf1= Bg4 (22...Qd5 23.Kg1 Be4 A) worse is 24.Qh5 Kg8 25.Rh2 A1) 25...Qb5 26.Bg7 Qf5 27.Bb2+– (27.Bf8? Bf3 28.Qf3 Qf3–+); A2) 25...Bf3+=; B) 24.Rh2=) 23.Qb2 Qd5?? (better is 23...Qd7 24.Nf4 Bf3 25.Ng6 Kg8=) 24.Bg7+/– Kg8 25.Kg1 Bf3 (better is 25...Rf5 26.Nf4 Qd7+/–) 26.Bh8?? (better is 26.Bf8 Rf8 27.Rh2+–) 26...Qd7+= 27.Nf4?? (better is 27.Kh2 Bd6 28.Be5 Be5 29.Qe5 Bh1 30.Rh1=) 27...Rf4–+ 28.Qg7 (28.Rh3 Rg4 29.Rg3 Bd6–+) 28...Qg7 29.Bg7 Rg4 30.Kh2 (30.Kf1 Bh1 31.Be5 Rh4–+) 30...Rh4 (30...Bd6 31.Be5 Be5 32.Kh3 Bg2) 31.Kg3–+ Rh1 (31...Kg7?! 32.Rh4 Be2 33.Rc1–+) 32.Kf3 Ra1 33.Ba1 Rf8 34.Kg3 (34.Ke2 Rf5 35.f4 Rb5–+) 34...h4! (34...h4 35.Kg2 h3 36.Kh3 Rf2–+) 0–1. Mory,Eric – Debray,Christopher, St Laurent FRA, Francophonie Rapid Ch, 2014.

3.c4 d4 4.d3 de3 5.Be3 Bf5 6.Nf3 e6 7.Qb3 Nc6 8.c5 a5 9.Nh4 (9.ba5!? Na5 10.Qa4 Qd7 11.Qd1+=) 9...ab4–/+ 10.Nf5 ef5 11.a3? (11.Qc4 Nd5 12.d4 Ne3 13.fe3 Qg5–+) 11...Qd5 (11...f4 12.Bc1 Nd4 13.Qc4–+) 12.Qd5 Nd5 13.d4 f4 (13...Ne3?! 14.fe3 Ra5 15.g3–/+) 14.Bc4 fe3 (14...Ne3?! 15.fe3 fe3 16.Bb5–+) 15.Bd5 Nd4 16.0–0 (16.Bb7 Ra5 17.fe3 Nc2 18.Ke2 Na1 19.ab4 Ra2 20.Kd3 Be7–+) 16...ef2 (16...e2 17.Re1 c6 18.Bc4 Bc5 19.a4–+) 17.Rf2 (17.Kf2 Bc5 18.Bb7 Nb3 19.Ke2 Ra7 (19...Na1?! 20.Ba8 Nc2 21.ab4 Nb4 22.Be4–+; 19...ba3?! 20.Ba8 Na1 21.Na3–+) 20.ab4 Ra1 (20...Na1?! 21.Bc6 Ke7 22.bc5–+; 20...Rb7?! 21.Ra8 Ke7 22.Rh8 Rb4 23.Rh7=) 21.bc5 Nc5–+) 17...Bc5 18.Bf7 Ke7 19.Kh1 (19.Raa2 ba3 20.Kf1 b5–+) 19...Rhf8 20.Nd2 Rf7 21.Re1 Kf8 22.Rf7 Kf7 23.Ne4 (23.Rf1 Kg6 24.ab4 Bb4–+) 23...b6 (better is 23...ba3!? 24.Nc5 a2 25.Ra1–+) 24.Rf1 Kg8 (24...Kg8 25.ab4 Bb4–+) 0–1. Tabuariki,Raentoa – Prasad,Calvin (1840), FIJ–ch Suva, 2007.

3.c4 Be6 4.c5 Nc6 (4...d4 5.Nf3 de3 6.fe3=) 5.b5= Ne5 6.d4 Neg4 (6...Ng6!?=) 7.f3+/– Nh6 8.g4 (better is 8.Nc3+=) 8...g5? (better is 8...Nfg8+=) 9.h4+– Qd7 (9...Nfg4 10.hg5 Nf5 11.fg4+–) 10.hg5 Nfg4 (10...Nhg4 11.gf6 Nf6 12.Nc3+–) 11.gh6 (11.Rh6?! Nh6 12.gh6 Bh6+=; 11.fg4?! Ng4 12.Bd3 Bf5+–) 11...Nh6 12.Ne2 Nf5 (12...Bg7 13.e4 Ng8 14.e5+–) 13.e4 de4 (13...Ng7 14.Qa4+–) 14.fe4 Qb5 (14...Ng7 15.c6 bc6 16.bc6+–) 15.Nbc3 (15.ef5 Bf5 16.Nbc3 Qc6+–) 15...Qb4 (15...Qc4 16.ef5 Bf5 17.Bb2+–) 16.Rb1 Ne3 (16...Qa5 17.ef5 Bc4 18.Bd2+–) 17.Be3 Qa5 18.Rb7 Bc4 (18...c6 19.d5 Bc8 20.Qd4+–) 19.Bd2 Qa6 20.Rc7 Rd8 (20...Bg7 21.Bg5 Bf8 22.d5+–) 21.Nd5! e6 (21...Bd5 22.Rh6) 22.Nf6 1–0. Trkn – guest4859, ICC, 2004.

3.c4 Bg4 4.Qb3 e6 (4...dc4 5.Bc4 e6 6.d4+=) 5.Bb2 Be7 6.h3 Bh5 7.Be2 0–0 (7...Be2 8.Ne2 dc4 9.Qc4+=) 8.Nf3 dc4 9.Qc4 Nbd7 (9...Nd5 10.Qb5 Bb4 11.Qb7+=) 10.Nc3 (10.0–0 a5 11.b5 Nb6=) 10...Nb6+= 11.Qb3 Nbd5 12.Nd5 Nd5 13.a3 Bf6 (13...a5 14.ba5 Bf3 15.Bf3=) 14.d4 a5 15.ba5 c6 (15...c5 16.0–0 (16.Qb7? Qa5 17.Kd1 Rfb8–+; worse is 16.dc5 Qa5 17.Kf1 Bb2 18.Qb2 Qc5+=) 16...Bf3 17.Bf3 cd4 18.Bd4 Bd4 19.ed4 Ra5 20.Qb7+=) 16.0–0 Qa5 (16...Qe7 17.e4 Nf4 18.Bc4=) 17.e4 (17.g4!? Bg6 18.g5= (18.Qb7? Rfb8 19.Qc6 Rb2–+)) 17...Nf4= 18.Bd1 Bf3 19.Qf3 e5 (19...Qg5 20.Bc1 e5 21.Bb3+=) 20.Bc3 Qb5 (20...Qc7 21.Bb4 Rfd8+=) 21.a4+/– Qd3 22.de5 Bg5 23.Bb4 (23.a5 Qf3 24.Bf3 Rfd8+/–) 23...Rfe8 24.Bd6 Qf3 25.Bf3 Be7 (25...Nd3 26.Rfb1 Ra7 27.a5+=) 26.Rfd1 Ng6 (26...b6 27.Rac1 b5 28.ab5 cb5 29.Rc7+–) 27.g3 (27.Rab1 Ra7+–) 27...Bd8 (27...Bg5 28.h4 Bh6+/–) 28.e6 (better is 28.Rab1!?+–) 28...Re6+= 29.Bg2 (29.Rab1 Be7 30.e5 Ne5 31.Be5 Re5 32.Rb7 Re6+/–) 29...Ne5 30.Bc5 Nc4 (30...Be7 31.Bd4+=) 31.f4 (31.Rd7 Bb6 32.Bb6 Nb6 33.Rb7 Na4 34.Ra4 Rf8+–) 31...Be7 32.Bf2 (32.Bd4 c5 33.Bc3 Rd6 34.Rd6 Bd6+–) 32...Rd6 33.Rdc1 Na5 (33...Bf6 34.e5 Ne5 35.fe5 Be5 36.Rab1+–) 34.Rab1 Rd2 35.Be1 Ra2 36.Ba5 Ra5 ½–½. Gross,Wilhelm – Merten,Rainer, xxi/04, 1991.

3.d3 e5 4.a3 Bd6 5.c4 dc4 6.dc4 0–0 7.Bb2 a5 8.Nc3 (better is 8.c5 Be7 9.Qd8 (worse is 9.Be5 Qd1 10.Kd1 Ng4–/+) 9...Bd8 10.Nd2=) 8...ab4–/+ 9.ab4 Ra1 10.Qa1 Bb4 11.Be2 Nc6 12.Nf3 e4 13.Nd4 Nd4 14.ed4 Qd4 15.0–0 Qd7 16.Nd5 Nd5 17.cd5 f6 18.Bc4 b5 19.Bb3 Bd6 20.Re1 Qf5 21.Qa5 b4 22.Bc2? (22.Bd4 Qh5 23.g3–+) 22...Qf4 23.Re4 (23.g3 Qd2 24.Rc1 e3–+) 23...Qd2 (23...Qd2 24.Bb3 Qb2–+) 0–1. dariuscyclone – pierred, internet, 2011.

3.h3 e6 4.a3 a5 5.b5 c5 6.bc6 bc6 7.Bb2 Be7 8.Nf3 Nbd7 9.Be2 Qc7 10.0–0 e5 11.c4 e4 12.Nd4 Ba6 13.cd5 Be2 14.Qe2 cd5 15.Nb5 Qb7 16.Rc1 Nc5 17.Bf6+= gf6 18.Nd4 0–0 19.Qg4+= Kh8 20.Nf5 Rg8= 21.Qh5 Rg5 22.Qf7+= Rag8? 23.Ng3?? Nb3 24.Nc3 Na1 25.Rb1 Qd7 26.h4 R8g7 27.Rb8+– Rg8 28.Rg8?? Rg8–+ 29.Nd5 Rg7 30.Qh5 Bd8 31.Ne4 Qf7 32.Nef6?? Qh5 33.Nh5–/+ Rg4 34.g3 Bh4 35.f3? Rg5–+ Black launches an attack 36.Ndf6 Bg3 37.Ng3 Rg3 38.Kf2 Rg6 39.Ne4 Nc2 40.d4 Na3 41.d5 Nc4 42.f4 a4 43.f5 Rb6 44.f6 a3 45.f7 Kg7 (46.f8Q Kf8–+) 0–1. lesbian14 – pimpernuckel, Live Game Caissa's Web, 2006.

3.h3 g6 4.Nf3= Bg7 5.Bb5 c6 6.Ba4 b5 7.Bb3 0–0 8.Bb2 Ne4 (better is 8...a5!? 9.a3 Bf5+=) 9.Bg7+= Nf2?? (better is 9...Kg7 10.a4 e6=) 10.Qe2?? (10.Kf2 Kg7 11.a4 ba4 12.Ra4 Nd7+–) 10...f6?? (better is 10...Nh1 11.Bf8 Qf8+=) 11.Qf2+– (11.Bf8?! Nh1 12.Bh6 Ng3+–) 11...Kg7 12.0–0 e5 13.d3 Nd7 14.Nbd2 a5 15.ba5 g5 16.Qg3 h6 17.Nh4 Re8 18.Nf5 Kf7 19.Nh6 Ke6 20.Qg4 Kd6 21.Nf7 Kc7 22.Nd8 Kd8 23.e4 Nc5 24.Qh5 Ra5 25.ed5 Nd7 26.dc6 Nc5 27.Rf6 Nd3 28.cd3 Ra7 29.Qg5 Rc7 30.Rf7 Rce7+– 31.c7! Kc7 32.Re7 Re7 33.Qe7 Bd7 34.Rc1 (34.Rc1 Kb7 35.Qd7 Ka6 36.Qc7 b4 37.Bc4) 1–0. pillsbury (2075) – nimzou (1990), net–chess.com, 2013.

3.a3 Bf5

4.Nf3 e6 5.Nh4 Bg4=+ 6.Be2 Be2 7.Qe2 Be7 8.Nf3 a5 9.ba5 Ra5 10.0–0 0–0 11.Nd4 c6 12.Nc3 Qd7 13.Nb3 Ra8 14.a4 Na6 15.Bb2 Nb4 16.d4 Qc7 17.h3 e5 18.de5 Qe5 19.Nd1 Qe4 20.c3 Nd3 21.Ra2 Ra4 22.Ra4 Qa4 23.Nd4 Ne5 24.f4 Nc4 25.Bc1 Qa5 26.Bd2 Qa2 27.Bc1 Qe2 28.Ne2 Bc5 29.Nd4 Ne4 30.Kh2 Ra8 31.Nb3 Be7 32.Re1 Ra2 33.Nd4 c5 34.Nf3 Rc2 35.Nd2 Ncd2 36.Bd2 Rd2 37.Kg1 Bh4 38.Rf1 Ng3 (38...Ng3 39.Re1 Ne2 40.Kf1 Nc1–+) 0–1. pillsbury (1995) – flagged (1920), net–chess.com, 2007.

4.Nf3 h6 5.c4 dc4 6.Bc4 Bd3 (better is 6...a5!? 7.Qb3 e6 8.ba5 Nbd7=) 7.Bf7!+/– Kf7 8.Qb3 Qd5 9.Qd5 Nd5 10.Ne5 Kg8 11.Nd3 Nd7 12.Bb2 e6 13.Ne5 (13.e4!? N5b6+/–) 13...Ne5+/– 14.Be5 Bd6 15.Bb2 Kf7 16.Nc3 Nc3 17.Bc3 c6 18.Ke2 Rhe8 19.f4 g6 20.g4 Rg8 21.h3 Ke7 22.Rhf1 a6 23.Rf3 Raf8 24.Raf1 Rf7 25.d3 c5 26.Rb1 cb4 27.Bb4 Bb4 28.Rb4 b5 29.a4 Rb8 30.Rf1 Kd6 31.Rc1 Rfb7 32.Kd2 (better is 32.Rd4!? Ke7 33.Rc6+–) 32...a5+/– 33.Rd4 Ke7 34.ab5 Rb5 35.Rc7 Ke8 36.e4 (36.Rd6!? Rb2 37.Kc3 R2b3 38.Kd4 R3b6 39.Rb6 Rb6+–) 36...Rb2+/– 37.Rc2 R2b7 38.Rd6 Rb6 39.Rcc6 Rc6 40.Rc6 Kd7 41.Ra6 Rb2 42.Kc3 Rh2 43.Ra5 Rh3 44.Ra7 Ke8 45.Rg7 1–0. Ivanets,Vladimir1 (2265) – Walpen,Peter (2045), Davos op 5th, 2006.

3.a3 Bg4

4.Be2 Be2 5.Qe2 Nbd7 =.

4.f3 Bd7 5.Bb2 +=.

4.f3 Bd7 5.d4 +=.

4.f3 Bh5 5.Bb2 (5.g4 Bg6=) 5...Nbd7 6.c4 (6.g4 Bg6=) 6...e6 7.Qb3 (7.Nh3 a5=) 7...c6 (7...Bg6 8.Nh3+=) 8.Nc3 (8.Nh3 Bd6+=) 8...Bd6 (8...Bg6 9.f4+=) 9.d4 (9.c5 Bc7+=) 9...0–0 (9...Bg6 10.c5 Bc7 11.b5+=) 10.c5 (10.e4 de4 11.fe4 e5–/+) 10...Bc7+= 11.g4 Ng4 (11...Bg6!?+=) 12.fg4+= Qh4 13.Kd2 Bg4 14.Nge2 (better is 14.Bd3+=) 14...Bf3–/+ 15.Rg1 Bh2 (15...Qh2?! 16.b5=) 16.Bg2 Bg1 17.Bf3 Qf2 18.Rg1 Qf3 19.Ng3 (19.b5 Nf6–/+) 19...h5 (19...Nf6 20.b5–+) 20.Nce2 (20.Nge2 h4–/+) 20...Nf6 21.Qd1 (21.Kd1 h4 22.Rf1 Qg4–+) 21...Ng4 22.Kc1 (22.Nh5 Nf2 23.Rg7 Kh8=) 22...h4 (22...Qe3 23.Kb1 h4 24.Nh5–+) 23.Nh1? (better is 23.Nf1–+) 23...Ne3 24.Qe1 (24.Qd3 a5 25.Re1 ab4 26.ab4 Qe4 27.Qe4 de4–+) 24...Nc4 25.Nc3 (25.Qf2 Qb3 26.Nc3 a5–+) 25...Qd3 (25...Qf4 26.Kc2–+) 26.Qd1 (26.Nf2 Qd4 27.Rg4 Qf6–+) 26...Qd1 27.Nd1 Nb2 (27...f6!? 28.Nhf2–+) 28.Nb2 f6 (28...f6 29.Nd3 g5–+) 0–1. Heinola – Peltomaa, KankSK club, 1984. (=1.e3 d5 2.b4 Nf6 3.a3 Bg4)

4.f3 Bh5 5.d4 e6 6.c4 (6.Ne2 Bd6+=) 6...Be7 (6...Bg6 7.Nh3+=) 7.Bd3 (7.Nh3 Bg6=) 7...dc4 (7...Bg6 8.Ne2=) 8.Bc4 c6 (8...0–0 9.Ne2=) 9.Ne2 Nbd7 (9...b5 10.Bd3=) 10.0–0 0–0 11.Nf4 Nb6 (11...Bd6 12.Nh5 Nh5 13.Nc3=) 12.Bb3 (12.Bd3 a5 13.Qc2 Bg6 14.Ng6 fg6 15.ba5 Ra5+=) 12...Qc7 (12...Bd6 13.Nh5 Nh5 14.Nc3=) 13.Bc2 (13.e4 e5 14.Nh5 Nh5 15.de5 Qe5=) 13...Bd6 (13...a5 14.Qd3 Bg6 15.Ng6 hg6 16.ba5 Ra5 17.f4=) 14.Nh5+= Nh5 15.f4 g6 16.Nd2 (16.Qf3 a5 17.ba5 Ra5=) 16...f5 (16...a5 17.ba5 Ra5 18.Bd3+=) 17.Bb2 (17.Nb3 Nd5+=) 17...Nd5 (17...a5 18.ba5 Ra5 19.Nb3=) 18.Qe2 (18.Nc4 Rfd8+=) 18...Rae8 (18...a5 19.ba5 Ra5 20.Nc4=) 19.Nc4 Nhf4? (better is 19...Nhf6!?+=) 20.ef4+– (20.Rf4?! Nf4 21.ef4 Bf4+=) 20...Bf4 21.Ne5 Be3 (21...a5 22.ba5 Qa5 23.Rad1+–) 22.Kh1 Bh6 (22...Rd8 23.Rae1+–) 23.Bb3 a5 24.b5 Bg7 25.bc6 White gets the initiative 25...Be5 (25...bc6 26.Rac1 Be5 27.de5+– (27.Qe5?! Qe5 28.de5 Rb8 29.Bd5 cd5+/–)) 26.de5 bc6 27.Rac1 (27.Bd4 c5 28.Rfc1 Qb8 29.Bd5 cd4+–) 27...Qb6 28.Rf3 Rd8 (28...Rc8 29.Bc4+–) 29.Ba4 c5 30.Rb3 Qa7 31.Qc4 (31.Qb5 Nf4 32.Qc4 g5+–) 31...Rc8 32.Rb5 Qe7 (32...f4 33.Bd1+–) 33.Bb3 (33.Rc5?! Nb6 34.Rc8 Nc4 35.R8c4 Rb8+–) 33...a4 (33...f4 34.Rc5 Rc5 35.Qc5 Qc5 36.Rc5+–) 34.Qa4 Rc6 (34...Rc7 35.Qc4+–) 35.Bd5 (35.Qa5 Rfc8+–) 35...ed5 36.Qa5 Rfc8 37.Bd4! c4 (37...cd4 Exploits the pin 38.Rc6 Eliminates the defender c6) 38.Rd5 Qc7 (38...f4 39.Qb4 Qc7 40.Rb5+–) 39.Qc7 (39.Qc3 Qf7 40.Rd6 Rd6 41.ed6 Qd5+–) 39...R6c7 (39...R8c7 40.a4+–) 40.a4 Rc6 (40...Kf7 41.a5+–) 41.a5 Kf8 (41...Kf7 42.Rd7 Ke6 43.Rh7+–) 42.Rd7 (42.Bc3 Rb8+–) 42...h5 43.Kg1 Ra8 (43...Ke8 44.Rh7 R6c7 45.Rc7 Rc7 46.a6+–) 44.Bc3 Ke8 (44...Rb8 45.Ra1 Ra8 46.Kf2+–) 45.Rcd1 Rac8 46.Kf2 Re6 (46...f4+–) 47.Rh7 Rcc6 48.Rh8 Kf7 49.Rd7 Re7 50.Rh7 Kf8 (50...Kg8 51.Rhe7 Kf8 52.Bb4 Rc8 53.Rh7 Ke8 54.Rde7 Kd8 55.Rh8) 51.Bb4 Kg8 52.Rde7 Rd6 (52...Rc5 53.Bc5 c3 54.Reg7) 53.Bd6 c3 54.Reg7 1–0. Blumberg – Jenneborg,Seved, email 4AMM–09, 1997.

4.f3 Bh5 5.g4 Bg6 =.

3.Bb2

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

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

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

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

3.Bb2 c6 4.Nf3 Bg4 5.c4 e6 6.Qb3 Nbd7 (--> 1.b4 d5 2.Bb2 Bg4 3.c4 e6 4.Qb3 Nf6 5.e3 Nbd7 6.Nf3 c6).

3.Bb2 Qd6 4.a3 e5 (--> 1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.e3 Nf6).

3.Bb2 Nbd7 4.Nf3 e6 5.b5 c5 (no 6.bc6) (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Nbd7).

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

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

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

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

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

3.Bb2 Bf5 4.Nf3 e6 5.b5 Nbd7 6.c4 Bd6 7.Be2 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.b5 Nbd7 6.Be2 Bd6 7.c4).

3.Bb2 Bg4 4.Qc1 (--> 1.b4 d5 2.Bb2 Bg4 3.Qc1 Nf6 4.e3).

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

3.Bb2 Bg4 4.Nf3 c6 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).

3.Bb2 Bg4 4.Nf3 e6 5.a3 Bd6 6.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 Bg4 4.e3 Nbd7 5.Be2 e6 6.a3 Bd6).

3.Bb2 g6 4.c4 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 g6).

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

3.Bb2 g6 4.Nf3 Bg7 5.Be2 0–0 6.0–0 c6 7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.Be2 d5 7.0–0).

3.Bb2 e6

4.a3 a5 5.b5 c5 6.c4 Nbd7 7.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 a5 5.b5 c5 6.e3 Nbd7 7.c4).

4.a3 b6 5.c4 Bb7 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 b6 5.Nf3 Bb7 6.c4).

4.a3 c5 5.Bb5 Nc6 6.bc5 Bc5 7.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 6.Nf3 Nc6 7.Bb5).

4.a3 c5 5.bc5 Bc5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5).

4.a3 c5 5.bc5 Bc5 6.d4 Be7 7.c4 0–0 8.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 c5 5.bc5 Bc5 6.d4 Be7 7.e3 0–0 8.c4).

4.a3 Be7 5.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3 Be7).

4.b5 a6 5.Nf3= (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.Nf3).

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

4.b5 b6 5.Nf3 Bb7 6.Be2 Be7 7.0–0 0–0 8.d4 c5 9.c4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4).

4.b5 c5 5.c4 b6 6.Nf3 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

4.b5 c5 5.c4 Bd6 6.Nf3 0–0 7.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

4.b5 c5 5.c4 Bd6 6.Nf3 Nbd7 7.Be2 Qe7 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 Qe7).

4.b5 c5 5.c4 Nbd7 6.Nf3 Bd6=+ 7.Be2 0–0 8.0–0 b6 (--> 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.b5 c5 5.c4 Be7 6.Nf3 0–0 7.Be2 a6 8.a4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 a6 8.a4).

4.b5 c5 5.c4 Be7 6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7).

4.b5 c5 5.Nf3 Bd6 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c5).

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

4.b5 c6 5.a4 a6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 c6).

4.b5 Nbd7 5.Nf3 Bd6 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.Be2 Nbd7).

4.b5 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7).

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

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

3.b5 e5

(--> 1.b4 e5 2.b5 d5 3.e3 Nf6).

4.Bb2 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 Nf6).

3.c3 Bf5

4.Na3 A) 4...e5 5.Nf3 (5.Ne2 Be7 6.Ng3 Be6 7.Be2 0–0 8.0–0 a5 9.b5 Nbd7 10.Bb2) 5...Nbd7 6.Qb3 c6 7.Be2 a5 8.Bb2 Bd6 9.Nh4 Be6 10.Nc2; B) 4...Nbd7 5.Be2 (5.Nf3 e5 6.Qb3 a5 7.h3 Be7 8.Be2 0–0 9.0–0 c6 10.d3; 5.Qb3 a5 6.Nf3 e5 7.h3 c6 8.g4 Be4 9.Be2 Bd6 10.g5; 5.Bb2 e5 6.Ne2 a5 7.Ng3 Bg6 8.Qb3 ab4 9.cb4 h5 10.h4) 5...a5 6.Nf3 e5 7.Qb3 c6 8.h3 Bd6 9.g4 Bg6 10.0–0; C) 4...a5 5.Nf3 ab4 6.cb4 e6 7.Nc2 Nbd7 8.Be2 Bd6 9.Ncd4 0–0 10.0–0.

4.d4 a5 5.ba5 (5.b5 e6 6.Nd2 Bd6 7.Ne2 0–0 8.Ng3 Bg6 9.Be2 c5 10.0–0) 5...Ra5 6.Nf3 g6 7.Qb3 Bg7 8.Qb7 Nbd7 9.Nbd2 0–0 10.Nh4.

4.d4 e6 5.Ne2 (5.Nf3 Nbd7 6.Nbd2 Bd6 7.Nh4 Bg4 8.Qc2 0–0 9.h3 Bh5 10.g4; 5.Nd2 Nbd7 6.Ngf3 a5 7.ba5 Ra5 8.Qb3 Bd6 9.Nh4 Be4 10.Qb7; 5.Bd3 a5 6.ba5 Nc6 7.a6 ba6 8.Bf5 ef5 9.Nf3 Bd6 10.0–0) 5...Bd6 6.g3 (6.Ng3 Bg6–/+ 7.Nd2 a5 8.b5 h5 9.c4 0–0 10.c5; 6.Nd2 Nc6 7.Ng3 Bg6 8.b5 Ne7 9.c4 dc4 10.Nc4) 6...Be4 (6...Qd7 7.Nf4–+ (7.Bg2 a5 8.0–0 0–0 9.Bb2 ab4 10.cb4) 7...0–0 8.b5 a6 9.Na3 e5 10.de5; 6...Nbd7 7.Nd2 0–0 8.Bg2 a5 9.b5 c6 10.bc6) 7.Rg1–/+ c6 (7...a5!? 8.b5 Nbd7–/+ 9.Nd2 Bf5 10.Nf4) 8.Nd2 a5 (8...Nbd7 9.Ne4 de4 10.Qb3) 9.Qb3 (9.Ne4 de4 10.ba5–/+ (10.Bd2 Nbd7+=)) 9...a4 (9...ab4 10.Ne4–/+ (10.cb4 Qe7 11.Ne4 Ne4 12.Rb1–/+)) 10.Qb2 (10.Qd1–/+; 10.Qa3–/+) 10...b5 (10...Bf5 11.c4–/+) 11.a3 (11.Ne4 de4 12.Bg2 0–0+=) 11...h5 (11...Bf5 12.Nf4–/+) 12.Ne4+= Ne4 13.Bg2 f5 (13...Nd7 14.Qc2+=) 14.f3= Nf6 15.Nf4 Kd7 (15...Kf7!?=) 16.Ng6 (16.h4 Bf4 17.gf4 Kc7+=) 16...Rh7+= 17.f4 (17.Qc2!?+=) 17...Ne4+= 18.Be4 (18.Ne5 Be5 19.fe5 Kc7+=) 18...fe4 19.Qg2 (19.Ne5 Kc7+=) 19...Qf6 20.Ne5 Kc7 21.Ra2 (21.Bb2 Nd7+=) 21...g5 (21...Nd7 22.Qh3–/+) 22.Rf2 Be5 (22...g4 23.Bb2–/+) 23.fe5+= Qe7 24.Rgf1 Nd7 25.Bd2 (25.Kd1 Rf8+=) 25...Rg8 (25...Nb6 26.Bc1+=) 26.h3 (26.Kd1 Nb6+=) 26...Rhg7 (26...g4 27.h4+=) 27.Ke2 Qe8 28.Be1 (28.Bc1 Rf8+=) 28...Nb6 29.Bd2 Nd7 30.Be1 Qe7 31.Qh2 (31.Bd2 h4+=) 31...Qe8 (31...Nb6 32.Bd2+=) 32.Qg2 Qc8 (32...h4 33.g4+=) 33.Qh2 (33.Bd2!?=) 33...c5 (33...Nb6 34.Rf7 Rf7 35.Rf7 Nd7=) 34.bc5. Cvetkovic,Miloslav (2055) – Tomic,Miroslav, 17th Belgrade Trophy, Obrenovac SCG, 2004.

4.Nf3 A) 4...Nc6 5.b5 (5.Be2 a6 6.0–0 g6 7.Nd4 Nd4 8.cd4 Bg7 9.Nc3 0–0 10.Qb3; 5.Qa4 a6 6.Ne5 Qd6 7.Bb5 Qe5 8.Bc6 Bd7 9.Bd7 Nd7 10.0–0) 5...Na5 6.Na3 Ne4 7.Nd4 Bg6 8.d3 Nc5 9.f4 e6 10.Be2; B) 4...g6 5.Bb2 (5.Nd4 Bd7 6.Na3 Nc6 7.Nc6 Bc6 8.Bd3 Bg7 9.0–0 0–0 10.Bb2; 5.Na3 Bg7 6.Nc2 0–0 7.Ncd4 Bd7 8.Be2 Re8 9.0–0 e5 10.Nb3; 5.Qa4 Bd7 6.b5 Bf5 7.Nd4 Nbd7 8.Nf5 gf5 9.d4 Rg8 10.Nd2) 5...a5 6.b5 Nbd7 7.c4 Bg7 8.Nd4 0–0 9.Nf5 gf5 10.Qc2; C) 4...Nbd7+= 5.Be2 (5.Na3 e5 6.Bb2 a5 7.Qb3 Be7 8.Be2 0–0 9.0–0 c5 10.Nb5; 5.Bb2 e5 6.Na3 a5 7.Qb3 Be7 8.Be2 0–0 9.0–0 c5 10.Nb5; 5.Bb5 c6 6.Be2 e5 7.0–0 Bd6 8.c4 Bb4 9.d4 e4 10.Nh4; 5.Nh4 Bg4 6.f3 g5 7.fg4 gh4 8.c4 Ne5 9.Bb2 Qd6 10.g5) 5...e5 6.0–0 a5 7.Qb3 Bd6 8.Na3 c6 9.Nh4 Be6 10.Nf3.

3.c4 dc4

4.Bc4 e6 5.a3 c5 6.bc5 Bc5 7.Nc3 0–0 8.Nf3 Nbd7 9.0–0 a6 10.a4 b6 11.d4 Be7 12.e4 White prepares the advance d5 12...Qc7 13.Nd2 e5 14.d5 Bc5 15.Qe2 Bd4 16.Bb2 Nc5 17.Kh1 (17.h3 Qd6=) 17...Bd7 18.Nd1 (18.Rfc1 Qd6+=) 18...Bb2 (18...Nce4!? 19.Ne4 Ne4 20.Ba6 Nf6–/+) 19.Nb2= Rfc8 20.Rfc1 Qd6 21.f3 Ne8 (21...Nh5 22.Qe3+=) 22.Bd3= Nd3 23.Qd3 b5 24.Rcb1 Ra7 25.ab5 Bb5 26.Nbc4 Qc5 27.Qe3 Bc4 28.Nc4 Qe3 29.Ne3 Kf8 30.Kg1 a5 31.Ra4 Nd6 32.Rba1 Attacking the isolated pawn on a5 32...Rc5 33.Rb1 Ke7 34.Rb8 h5 35.Rg8 White fights for the Initiative 35...g6 36.g4 (36.Rb8 Rac7=) 36...Rc1 37.Kg2 hg4 38.Ng4 Rc2?? (better is 38...Nc4+=) 39.Kg3 Nc4 (better is 39...Rc4!? 40.Ne5 Ra4 41.Nc6 Kf6 42.Na7 Nc4+/–) 40.Rc8+– Nb6 41.Rc2 Na4 42.Ne5 (42.Ne5 Kd6 43.Nc4 Kd7 44.Ra2+–) 1–0. Heinola – Haunia, Turku, 1984.

4.Bc4 e6 5.a3 Be7 6.Nf3 0–0 7.0–0 a6 8.Qc2 h6 9.Nc3 b5 10.Be2 Bb7 11.Bb2 Nbd7 12.d3 (12.d4 Nb6+=) 12...Rc8 (12...c5!?+=) 13.d4+= Nb6 14.Ne5 Bd6 15.Bf3 Bf3 16.Nf3 (worse is 16.gf3 Be5 17.de5 Nfd7+=) 16...Nc4 17.Bc1 Be7 18.e4 c6 19.e5 Nd5 20.Ne4 a5 21.ba5 Qa5 22.Nfd2 Nd2 23.Bd2 (worse is 23.Nd2 c5 24.dc5 Rc5–/+) 23...Qb6 24.Qd3 Ra8 25.Rfc1 Ra4 Attacking the backward pawn on d4 26.Nc5 Ra7 (26...Bc5 27.Rc5 Rfa8 28.Ra2+=) 27.Qg3 Kh7 28.h4 Qd8 29.h5 Bh4 30.Qd3 Kh8 31.g3 (31.a4 b4+=) 31...Bg5 32.g4 (32.a4!?=) 32...Be7 33.Ne4 Qb6 34.g5 Rfa8 35.Nc5? (35.gh6 gh6 (35...Ra3? 36.Ng5 Bg5 37.Ra3 Ra3 38.Qa3+–; worse is 35...Ba3 36.Ng5 f5 37.hg7 Rg7 38.Ra3 Ra3 39.Qa3+–) 36.Bh6 Ra3 (worse is 36...Ba3 37.Ng5 f5 38.ef6 Nf6 39.Ra3+–) 37.Ra3 Ra3= (worse is 37...Ba3 38.Ng5 f5 39.ef6 Qc7 40.Bg7 Qg7 41.fg7 Kg7 42.Qg6 Kh8 43.Nf7)) 35...Bc5 (35...hg5 36.Qg3–/+) 36.dc5 (36.Rc5 hg5 37.Bg5 b4+=) 36...Qd8 (36...Qc7 37.Qg3–/+) 37.a4 (37.gh6!? gh6 38.Qg3+=) 37...Ra4–/+ 38.Ra4 Ra4 39.Qd4?? (39.Qg3 Ne7 40.gh6 gh6–+) 39...Qa8 (39...Rd4 40.Rd1 Rg4 41.Kh2 Ne3 42.Ra1 Rh4 43.Kg3 Qg5 44.Kf3 Qg4 45.Ke3 Qe4) 40.Rb1?? (better is 40.Qd3 hg5 41.Qg3–+) 40...Ra3 0–1. Ivanets,Vladimir1 (2265) – Goris Schouwstra,Adri (1880), Davos op 5th, 2006.

4.Bc4 e6 5.b5 Be7 6.Nf3 0–0 7.0–0 c6. algernon (2320) – stejam (2405), net–chess.com, 2004.

3.c4 c6

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

4.b5 e5 5.cd5 cd5 6.Nf3 Bd6 7.Qb3 0–0 8.Nc3 Be6 9.Ng5 Nbd7 10.d4 ed4 11.Ne6 fe6 12.ed4 Ng4 13.Nd5? (better is 13.Ne4 Qa5 14.Bd2–/+) 13...Nf2–+ (13...Rf2?! 14.Nb6 Qh4 15.g3+=) 14.Be3 (14.Nc3 Kh8 15.Rg1 Bh2 16.Ba3 Bg1 17.Bf8 Qf8 18.Ne2–+) 14...Nh1 (14...ed5 15.Bf2 Qa5 16.Kd1 Rf2 17.Be2–+ (17.Qd5 Kh8 18.Be2 Bf4 19.Qg8 Rg8 20.Kc2 Re2 21.Kb3 Qb5 22.Ka3 Bd6)) 15.Nc3 Qf6 16.Be2 (16.Bd3 Nf2 17.Bh7 Kh7 18.Qc2 Qg6 19.Qg6 Kg6 20.Bf2 Bb4–+) 16...Bh2 17.Kd2 (17.Ne4 Qh4 18.Kd2 Qe4–+) 17...Ng3 18.d5 (18.Bd3 Qe7–+) 18...Ne2 19.Ke2 Rae8 (19...Qg6 20.Re1–+) 20.Rd1 Kh8 21.Ne4 Qg6 22.Ng5 (22.de6 Re6 23.Rd7 Qg2 24.Kd3 Qe4 25.Kd2 Qg2 26.Kc1 Re3 27.Qe3 Rf1 28.Rd1 Rd1 29.Kd1 Qa2 30.Qe8 Qg8 31.Qd7–+) 22...ed5 23.Qd5 Nb6 24.Qc5 Bf4 (24...Qh5 25.Ke1 Bg3 26.Kd2 Rd8 27.Qd4 Rd4 28.Bd4 Bf4 29.Kc3 Rc8 30.Bc5 Rc5 31.Kb4 Rc4 32.Ka3 Ra4 33.Kb2 Qe2 34.Rd2 Qd2 35.Kb3 Rb4 36.Ka3 Nc4) 25.Rd3 Bg5 (25...Bg5 26.Qf8 Rf8–+) 0–1. Siepe,Hans Joachim – Kelbling,Philipp, Halver–ch, 2003.

4.Nc3 e6 5.a3 Nbd7 6.Bb2 Bd6 7.Nf3 0–0 8.c5 Bc7 9.d4 e5 10.de5 Ne5 11.Qc2 Re8 12.Be2 Qe7 13.Nd4 Nfg4 14.Bg4 Ng4 15.0–0–0 a5 16.Nf5 Bf5 17.Qf5 ab4 18.ab4 Ne5 19.Ne2 Nc4 20.Bc3 Ra2 21.Qg4 f6 22.Rd4 Ne3 23.Qf3 Nc4 24.Rg4 Ne5 25.Be5 Qe5 26.Nc3 Ra1 27.Nb1 h5 28.Rg3 Qf4 29.Qf4 Bf4 30.Kb2 Be5 31.Kb3 Bg3 32.hg3 Re2 0–1. Campos Calvo Sotelo,Juan – Caselas,Jacobo, Gallego, 2000.

4.c5 Bg4 5.f3 Bc8 =.

4.cd5 Nd5 5.Qb3 e5 6.Bc4 b5 (6...Be6 7.Nc3+=) 7.Bd5= cd5 Black has the pair of bishops. (7...Qd5 8.Qd5 cd5 9.Bb2=) 8.Nc3 White threatens to win material: Nc3xb5 (8.a4!?= deserves consideration) 8...Be6+= 9.Nb5 Qb6 Black threatens to win material: Qb6xb5 10.Nc3 Qb4 (10...d4 11.Nd5 Qb7=) 11.Qc2 (11.Ba3 Qb3 12.ab3 Ba3 13.Ra3 Nc6=) 11...Be7 (11...Qg4 12.Nge2 Nd7 13.Nb5+=) 12.Rb1 White threatens to win material: Rb1xb4 (12.Nf3!? should not be overlooked 12...Nd7 13.d4=) 12...Qg4+= 13.g3 Prevents intrusion on h4 13...0–0 14.Nge2? (14.f3 Qc4 15.Qa4+=) 14...Qf3 15.Rg1 d4! a convincing end 16.ed4 (16.ed4 Bf5 Combination) 16...Bf5 17.Qb2 (17.Qb3 does not win a prize 17...Bb1 18.Nb1 Qb3 19.ab3 ed4 20.Nd4 Bf6–+) 17...Bb1 (better is 17...Nc6!? seems even better 18.d5 Nb4 19.Qb4 Bb4 20.Rb4–+) 18.Qb1 Nc6 19.d5 (19.Qe4 is one last hope 19...Qe4 20.Ne4 ed4 21.g4–+) 19...Nb4 20.Qe4 (20.Ba3 there is nothing better in the position 20...Nd3 21.Qd3 Qd3 22.Be7–+) 20...Nd3 (20...Nd3 21.Qd3 Qd3–+) 0–1. Siepe,Hans Joachim – Kelbling,Ralph, Halver–ch, 2002.

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

3.c4 e5

4.a3 (--> 1.b4 e5 2.a3 d5 3.e3 Nf6 4.c4).

4.Bb2 Bb4 5.a3 Bd6 6.cd5 Nd5 7.Qf3 Nf6 8.h3 0–0 9.Bc4 e4 10.Bf6?? (Better is 10.Qe2–+) 10...ef3 (10...gf6?! 11.Qe4 c5 12.Nf3+=; < 10...Qf6 11.Qf6 gf6 12.Nc3=+) 11.Bd8 fg2 (11...Rd8?! 12.Nf3 Nd7 13.d4=) 12.Bd5 gh1Q (12...Rd8?! 13.Bg2 c6 14.d4–/+) 13.Bh1 Rd8 14.Nc3 c6 15.Ne4 Be7 16.Ne2 (16.d4 Be6–+) 16...Bh3 17.Rb1 b6 18.a4 Nd7 19.N2g3 f5 20.Nc3 Ne5 21.Bc6 (21.d4 Nd3 22.Ke2 Nb4–+) 21...Nc6 (22.Rb5 g6–+) 0–1. Dusterstar (2285) – Gargouille (2240), ChessWorld.net, 2003.

4.Bb2 Nbd7 5.Qb3 c5 6.a3 d4 7.ed4 ed4 8.Nf3 Bd6 9.Be2 0–0 10.bc5 Nc5 11.Qc2 Nh5 12.Nd4 Nf4 13.g3 Ne2 14.Ne2 Qg5 15.0–0 Bf5 16.Qd1 Bh3 17.d4 Bf1 18.Kf1 Ne6 19.Nbc3 Rfd8 20.Kg2 b6 21.Qb3 Rac8 22.Re1 Qf5 23.Nd5 Re8 24.Ne3 Qe4 25.f3 Qg6 26.Nd5 Qf5 27.Bc1 Nc7 28.Ne3 Qg6 29.Rd1 Qg5 30.Qd3 Qa5 31.Rd2 Rcd8 32.Nc3 Qg5 33.Nf5 Qf6 34.Rd1 Bf8 35.g4 g6 36.Ne4 Re4 37.fe4 gf5 38.gf5 Qh4 39.Qg3 Qg3 40.hg3 Ne8 41.e5 f6 42.e6 Nd6 43.d5 Nc4 44.a4 a6 45.Kf3 Bd6 46.Bh6 b5 47.Rd4 Ne5 48.Ke4 b4 49.Bf4 b3 50.Rd1 Nc4 51.Kd4 Rc8 52.Rb1 Bf4 53.gf4 b2 54.d6 Nd6 55.Rb2 Nf5 56.Kd5 Rd8 57.Ke4 Nd6 58.Kf3 Kf8 59.Rh2 Re8 60.Rh7 Re6 61.Rc7 Nf5 62.Kg4 Ne7 63.Kf3 Kf7 64.Rc5 Kg6 65.Kg4 f5 66.Kf3 Rc6 67.Re5 Kf6 68.Ra5 Ng6 69.Ke3 Nf8 70.Rd5 Ne6 71.Ra5 Rd6 72.Kf3 Nd4 73.Kg3 Nb3 74.Re5 Rd4 75.a5 Ra4 76.Re8 Ra5 77.Rb8 Nd4 78.Rb4 Ra3 79.Kf2 Ne6 80.Kg1 Ke7 81.Rb7 Kd6 82.Rf7 Ra5 83.Rf6 Ke7 84.Rh6 Nf4 85.Kf2 Ra3 86.Rh4 Nh3 87.Ke1 Ng5 88.Kd1 Ke6 89.Kc1 Ke5 90.Kb2 Ra5 91.Rh5 Nf3 92.Kc3 Ke4 93.Kb4 Ra1 (93...Ra1 94.Kc3 f4–+) 0–1. COMP – COMP, 2002.

4.cd5 Nd5 5.Bb2 =. Gross, Merten.

3.c4 e6

4.a3 a5 5.Qa4 Bd7 6.b5 A) 6...Bd6 7.d4 e5 8.c5 Be7 9.Nf3 e4 10.Ne5 Be6=; B) 6...c6 B1) 7.d4 dc4 (7...cb5 8.cb5 Na6 9.Nf3 Rc8 10.Bd2 b6=) 8.Bc4 Nd5 9.Bd5 (9.bc6 Bc6 10.Bb5 Qg5+=) 9...ed5 10.bc6+= 10...Nc6+=; B2) 7.Nc3 dc4 8.Bc4 Nd5 9.Bd5 ed5 10.Nf3 cb5=; C) 6...c5 7.d4 Be7 8.Nf3 0–0 9.Bb2 Qc7 10.Be2 cd4=; D) 6...Ne4 7.Nf3 dc4 8.Bc4 Nd6 9.Be2 c6 10.Nc3 cb5=; E) 6...dc4 7.Bc4 Nd5 8.Bd5 ed5 9.Nf3 c6 10.Nc3 cb5=.

4.a3 a5 5.b5 c5 A) 6.Nf3 Bd6 7.d4 Nbd7 8.cd5 ed5 9.dc5 Nc5 10.Be2 0–0=; B) 6.d4 cd4 (6...Nbd7 7.cd5 ed5 8.dc5 Nc5 9.Nf3 Bd6 10.Be2 0–0=) 7.ed4 dc4 (7...b6 8.Nf3 dc4 9.Bc4 Bd6 10.0–0 Bb7=) 8.Bc4 Bd6 9.Nf3 0–0 10.0–0= b6=; C) 6.Bb2 Be7 (6...Nbd7 7.Nf3 Bd6 8.d4 0–0 9.Nc3 Nb6 10.dc5 Bc5+=; 6...Bd6 7.Nf3 Nbd7 8.d4 0–0 9.Nc3 Nb6 10.dc5 Bc5=) 7.Nf3 0–0 8.Be2 dc4 9.Bc4 Qd6 10.d4 Nbd7=.

4.a3 a5 5.b5 Bd6 A) 6.d4 A1) 6...e5 7.cd5 Nd5 8.e4 Nf6 9.f4 (9.Nf3 Nbd7 10.Nc3= ed4=) 9...Be7 10.fe5 Ne4=; A2) 6...c5 7.cd5 ed5 8.dc5 Bc5 9.Nf3 Bf5 10.Bd3 Bd3+=; A3) 6...0–0 7.c5 Be7 8.Nf3 c6 9.b6 Nbd7 10.Be2 Ne4=; B) 6.Nf3 e5 7.d4 (7.cd5 e4 8.Nd4 Nd5 9.Qc2 Qe7 10.d3 ed3=) 7...e4 8.Nfd2 Ng4 9.Be2 Qg5 10.cd5+= Nf6+=.

4.a3 a5 5.b5 Be7 A) 6.Nc3 dc4 (6...c5 7.d4 Nbd7 8.Nf3 0–0 9.Bb2 dc4 10.dc5 Bc5=; 6...0–0 7.d4 Nbd7 8.Bb2 dc4 9.Bc4 Nb6 10.Bd3 Bd7=) 7.Bc4 A1) 7...Nd5 8.Bb2 (8.Qh5 Nb6 9.Be2 N8d7 10.d4 Nf6=) 8...0–0 9.Nf3 c6 10.0–0= Bd7=; A2) 7...0–0 8.d4 c5 9.Nf3 Qc7 10.dc5 Rd8=; B) 6.d4 0–0 (6...Nbd7 7.Nc3 0–0 8.c5 Ne4 9.Ne4 de4 10.Qc2 Nf6=; 6...c5 7.cd5 ed5 8.dc5 0–0 9.Nf3 Bc5 10.Bd3 Bg4=) 7.Nf3 Nbd7 8.Nbd2 c5 9.bc6 bc6 10.Rb1= Ba6=; C) 6.Nf3 0–0 (6...Nbd7 7.d4 0–0 8.c5 Ne4 9.Bd3 Bf6 10.Ra2 Re8+=; 6...c5 7.d4 cd4 8.Qd4 0–0 9.Bb2 b6 10.cd5 Bc5=) 7.d4 Nbd7 8.Nbd2 c5 9.Bb2 (9.bc6 bc6 10.Rb1 Ba6=) 9...cd4 (9...Bd6 10.cd5 ed5=) 10.Bd4= Bc5=.

4.a3 dc4 5.Bc4 c5 (5...Bd6 6.d4 (6.Nf3 0–0 7.d4 a5 8.b5 Nbd7 9.Nc3 e5 10.0–0=) 6...0–0 7.Nf3 a5 8.b5 Nbd7 9.Nc3 e5 10.0–0=) 6.bc5 Bc5 7.Nf3 (7.d4 Bd6 8.Nf3 0–0 9.0–0 Nc6 10.Nbd2=) 7...0–0 8.Nc3 (8.d4 Bd6 9.0–0 Nc6 10.Nbd2=) 8...b6 (8...a6 9.d4 Bd6 10.e4=) 9.0–0 (9.d4 Be7 10.Qe2=) 9...Bb7 (9...Ba6 10.Ba6=) 10.d4 Be7 11.Qe2 Nc6 12.Ba6 (12.Bb2 Na5=) 12...Qc8 (12...Ba6 13.Qa6 Rc8 14.Bb2=) 13.Bb7 Qb7 14.e4 Na5 15.Bb2 Rac8 16.d5 ed5 17.Nd5 Nd5 18.ed5 Nc4 19.Rad1 (19.Rfe1 Rfe8+=) 19...Rfd8 (worse is 19...Ba3 20.Ba3 Na3 21.Qd3=) 20.Rfe1 Bf8 (worse is 20...Ba3 21.Ba3 Na3 22.Nd4 Qd5 23.Nf5+/–; 20...Rd5? 21.Rd5 Qd5 22.Qe7+–) 21.h3 (21.Be5 Ne5 22.Qe5 Rc5+=) 21...Nb2–/+ 22.Qb2 Rd5 23.Rd5 Qd5 24.a4 h6 25.Qb5 Qb5 26.ab5 Rc5 27.Rb1 Rc2 28.Nd4 Ra2 29.Nb3 Ra4 30.Kf1 Rb4 31.Nd2 Rb1 32.Nb1 Bb4 33.Ke2 Kf8 34.Kd3 Ke7 35.Kc4 Be1 36.f3 Kd6 37.Na3 Ke5 38.Nc2 Bf2 39.Nb4 (39.Kd3!?–+) 39...Kf4 40.Nc6 Kg3 41.Na7 (41.Kd3 Kg2 42.Ke2 Bg3–+) 41...Kg2 42.Kd5 (42.Nc8 Kh3 43.Nd6 Kg2–+) 42...Kh3 43.Nc8 h5 44.Kc6 (44.Nd6–+) 44...h4 45.Nb6 Kg2 46.Nd5 h3 (better is 46...Kf3 47.b6 h3–+) 47.Nf4 Kg3 48.Nh3 Kh3 49.Kd7 (49.Kd5–+) 49...Kg3 50.Ke7 Kf3 51.Kf7 g5 0–1. Ivanets,Vladimir (2260) – Klovans,Janis (2440), 7th ch–Euro Senior, 2007.

4.a3 Be7 5.Nf3+= 0–0 6.cd5 ed5 7.Qc2 c5 (7...a5!? 8.b5 Nbd7+=) 8.bc5= Qa5 9.Bb2 Ne4 c5 seems the pivot of the position (9...Nbd7!?=) 10.Nc3+= Nc3 (10...Qc5!? 11.Bd3 Nf6+=) 11.Bc3+/– (11.Qc3?! Qc3 12.Bc3 Bc5+=) 11...Qc5 12.Bd3 f5 13.Qb2 Bf6 14.Rc1 Bc3 15.Rc3 Qe7 16.Nd4 f4 (16...Nc6 17.Nc6 bc6 18.Rc6+/–) 17.0–0 Nc6 18.Nc6 bc6 19.Rc6 Bb7 20.Rcc1 (20.Rc2 Rac8+–) 20...f3+/– 21.g3 (better is 21.Qb4 Qd7 22.Rc3 fg2 23.Rfc1+/–) 21...Qe6?? (better is 21...Qd7 22.Rfe1 Rab8+/–) 22.Rc7+– (22.Qb7 Qh3 23.Qd5 Kh8 24.Qf3 Rf3–+) 22...Rf7 23.Rfc1 (23.Qb7 Qh3 24.Qa8 Rf8 25.Qd5 Kh8 26.Qf3 Rf3+–) 23...Rb8 24.Rf7 Qf7 25.Qe5 (25.Rb1 Qe6+–) 25...Rc8 (25...Re8 26.Qd6 Qe7 27.Qe7 Re7 28.h4+–) 26.Rc8 Bc8 27.Qb8 Qb7 28.Qb7 Bb7 29.g4 Bc6 (29...Kf7 30.h4+–) 30.h3 Kf7 31.Kh2 Ba4 32.Kg3 Bd1 (32...h6 33.Kf3 Ke6 34.h4+–) 33.Kf4 h6 34.h4 (34.Ke5 Be2 35.Bf5 Ke7+–) 34...Kf6 (34...Ke6 35.Bf5 Kd6 36.g5+–) 35.g5 hg5 (35...Ke6 36.Bf5 Kd6 37.Bg4+–) 36.hg5 Ke6 37.Bf5 Kd6 38.d4 Be2 39.Bg4 1–0. Ivanets,Vladimir – Akhmetov,Radmil, 5th Cup Governov B, 2009.

4.Bb2 Bb4–/+ 5.Qa4 Nc6 6.cd5 Qd5 7.Nf3 Bd7 8.Bb5 Bd6 (8...Ne5 9.Qb4 Nf3 10.gf3 Qb5 11.Qb5 Bb5 12.Rg1–/+) 9.0–0 (9.Bf6!? gf6 10.Nc3+=) 9...Qh5 10.Nc3 a6 11.Be2 Ng4 (11...0–0 12.d4–/+) 12.h3+= Nce5 (12...Nf6 13.Nb5+=) 13.Qf4 (13.Qb3 Nf3 14.Bf3 Qe5+=) 13...Nf3 (13...Nf6!? 14.Ne4 Nf3 15.Bf3 Bf4 16.Nf6 gf6 17.Bh5 Be5+=) 14.Qf3= Qe5 The mate threat is Qh2 15.g3 Nf6 16.Qb7 0–0 17.f4 (17.Ba6? Rfb8 18.Nd1 Qf5–+ (18...Rb7?! 19.Bb7 Qa5 20.Ba8 Qa8 21.Bf6 gf6 22.Nc3–+)) 17...Qa5 18.Rab1 e5 19.Ne4 (better is 19.Qg2!?=) 19...Ne4–/+ 20.Qe4 White gets in control 20...Bh3 (worse is 20...Qd2 21.Rf2 Qa5 22.fe5=) 21.Rf2 ef4 (21...Qd2? 22.Bd3 Bf5 23.Qf5+– (23.Rd2?! Be4 24.Be4 Rae8+–); worse is 21...Qa2 22.fe5 Rab8 23.Bd3+– (23.ed6?! Rb2 24.Rb2 Qb2+=)) 22.Bd3 Threatening mate: Qxh7 22...Qh5 23.Qd4? (better is 23.gf4 f5 24.Qc6+=) 23...Qg5–+ 24.ef4 Qg3 25.Kh1 f6 26.Rg1 Qh4 27.Rh2 Qh5? (better is 27...Kh8 28.Qe3 Bf4 29.Qh3 Qh3 30.Rh3 h6+=) 28.Qe3 Bc5 29.Bc4 (29.Qh3?! Qh3 30.Rh3 Bg1 31.Bh7 Kf7 32.Kg1 Rab8+/–; 29.Rh3?! Be3 30.Rh5 Bg1 31.Kg1 h6+=) 29...Kh8 30.d4 (30.Rh3?! Be3 31.Rh5 Bg1 32.Kg1 Rfd8=) 30...Rae8 (30...Rab8 31.Rh3 (worse is 31.dc5 Rfe8 32.Qg3 Qg4 33.Qg4 Bg4 34.Rg4 Re1 35.Rg1 Rg1 36.Kg1 a5+–; 31.Qh3?! Qh3 32.Rh3 Rb2 33.dc5 f5+–) 31...Qf5 32.Bd3 (32.Ba6?! Qd5 33.Qf3 Qf3 34.Rf3 Rb2 35.dc5 Ra2+/–) 32...Qd5 33.Be4+–) 31.Qh3 (better is 31.Qd3 Bd4 32.Bd4+–) 31...Qh3 32.Rh3 Bd6 33.Bd3 Threatening mate... how? 33...h6 34.Rhg3 (34.f5 a5+–) 34...Re7 35.Bc1 g5 (35...a5!?+–) 36.Rh3 Kg7 37.Bd2 Rb8?? (better is 37...a5+–) 38.fg5 (38.Ba6?! Rb2 39.Bc3 Ra2+/–) 38...fg5 39.Bc3 (better is 39.Bg5 hg5 40.Rg5 Kf7 41.Rh7 Ke6 42.d5 Kf6 43.Rf5 Kg6 44.Rf8 Kg5 45.Rb8 Re1 46.Kg2+–) 39...Bb4 40.Ba1 (40.Ba1 Rb6 41.d5 Kf8 42.Rf1 Rf7 43.Rf7 Kf7 44.Rf3 Ke7 45.Be5+–) 1–0. Gale,Roy – Darbyshire,S, corr, 1979.

4.Bb2 Bb4 5.Qb3 Nc6 6.cd5 ed5 7.Bb5 Be7 8.Ne2 0–0 9.0–0 Be6 10.a4 Na5 11.Qc2 c5 12.d4? c4–+ 13.Bc3 Nb3 14.Ra2 a6 15.Bc4 dc4 16.Nd2 Bd5 17.Rb2 Ba3 18.Ra2 Qd6 19.Nb1 Ng4 20.Nf4 g5 21.Qf5–/+ Be6?? 22.Qg5+– Kh8 23.d5 f6 24.de6 Nh2 25.Bf6 Rf6 26.Qf6 Kg8 27.Nh5 Qf8 28.Na3 Qf6 29.Nf6 Kg7 30.Nc4 Nf1 31.Nd5 Nc1 32.Nd6 Na2 33.e7 Nd2 34.Nc7 Rg8 35.e8Q Re8 36.Nce8 Kg6 37.Nb7 Nc3 38.a5 h5 39.Nc5 Kf5? 40.Nd6 Ke5 41.Ndb7 Kf5 42.Na6 Ne2 43.Kh2 h4 44.Nac5 Nf1 45.Kh3 Kg5 46.Ne4 Kh5 47.a6 Ng1 1–0. gtate (1860) – aauerbach (1955), net–chess.com, 2003.

4.Bb2 Bb4 5.cd5 Qd5 6.Nc3 Qd6 7.Nf3 Nc6 8.Nb5 Qe7 9.Be2 0–0 10.0–0 Ne4 11.h3 Rd8–/+ 12.d3 a6 13.Nc3?? Nc3–+ (13...Nc3 14.Qc2 Ne2 15.Qe2 e5–+) 0–1. gtate (1920) – nhathuy (2290), net–chess.com, 2003.

4.Qb3 Nc6 5.a3 a5 6.b5 dc4 7.Bc4 Ne5 8.Be2 Qd5 9.Qd5 ed5 10.Nc3 (10.Bb2 Bd6=) 10...Bf5=+ 11.Nf3 Nd3 12.Bd3 Bd3 13.Ne5 Bf5 14.0–0 Bd6 15.f4 0–0 16.h3 Ne4 (16...Rfe8 17.g4 Be6 18.Bb2=+) 17.Nd5= Be6 18.Nc3 Nc3 19.dc3 Be5 20.fe5 Rfd8 21.a4 Rd3 22.Rf4 Rc3 23.Rd4 Rc5 24.Bd2 c6 25.Ba5 cb5 26.Bb6 Rc6 27.a5= h6 28.Rb1 Bc4 29.Rd7 Re6 30.Rb7 Re5 31.Rb2 Rd5 32.Ra7 Ra7 33.Ba7 b4 34.Bd4 Ra5 35.Rb4 Bd5 36.e4 Bc6 37.e5 Ra2 38.Bb2 Bd5 39.Kf2 Ra6 40.g4 Rc6 41.Bd4 Rc2 42.Kg3 Rd2 43.Bf2 Re2 44.Rb5 Rd2 45.Rb8 Kh7 46.Rd8 Rd3 47.Kh2 Rf3 48.Rd5 Rf2 49.Kg3 Re2 50.Rd7 Kg8 51.Rd8 Kh7 ½–½. Franck,Rudolf – Wiekert,Martin, NRW–Liga I Germany, 1987.

4.b5 Bb4 5.Nf3 c6 6.a4 Qa5 7.Ba3 (7.Ba3 0–0 8.Bd3=). gtate (1885) – pguidote (1800), net–chess.com, 2003.

3.c4 Bf5

4.Bb2 e6 5.a3 Be7 6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 Nbd7 6.a3 Be7).

4.Nf3 e6 5.cd5 Nd5 6.a3 Be7 7.Bb2 Bf6 (7...0–0 8.Nc3=+) 8.Qb3 (8.Bf6 Nf6 9.d4 0–0=) 8...0–0 9.Be2 Nd7 10.Bf6 Qf6 (better is 10...N7f6 11.d4 Qd6=) 11.0–0? (11.d4 a5 12.ba5 Rfb8=) 11...c6?? (11...Qa1 12.Nc3 Bc2 13.Qc2 Qa3 14.Nd5 ed5 15.Qc7 Nf6–/+) 12.d4= e5 13.de5 (13.Nc3 Be6 14.Qc2 Nc3 15.Qc3 ed4 16.Qd4 Rfd8=) 13...Ne5 14.Ne5 Qe5 15.Nd2 Qc3 16.Qc3 Nc3 17.Bf3 Be6 (17...a5 18.ba5 Ra5 19.Nc4=) 18.Ne4 Ne4 19.Be4 Rfd8 20.h3 (20.Rfd1 f5 21.Bc2 a5=) 20...g6 (20...Rd2 21.Rad1 Rad8 22.Rd2 Rd2 23.Rc1=+) 21.Kh2 ½–½. Thrasher,C – Highley,E, USA Armed Forces–ch, 1990.

3.d4

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

3.d4 g6 4.c4 dc4 5.Bc4 Bg7 6.Bb2 0–0 7.Nf3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d5 6.d4 dc4 7.Bc4).

3.Nf3

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

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

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

3.Nf3 Bg4 4.Bb2 Nbd7 5.c4 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.c4 Nbd7).

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

3.h3 e5!?

4.Bb2 Nbd7 –/+.

4.Nf3 –/+.

2.e4 de4–/+

3.Bb2 e6 4.Nc3 Nf6 5.a3 Bd6 (5...a5 6.b5 Bc5 7.Nge2–/+) 6.Nge2 0–0 (6...Be5 7.Ng3–/+) 7.Ng3 Bg3 (7...Be5 8.Bc4–/+) 8.hg3+= Nbd7 (8...e5!?+=) 9.Qe2 (9.g4 h6=) 9...b6 (9...e5!?=) 10.g4+= Ng4?? (better is 10...h6 11.g5 hg5+/–) 11.Qe4+– (11.Qg4?! f5 12.Qg3 Nf6+–) 11...Ndf6 12.Qa8 Bd7 (12...Qd4 13.Nd1 Qd6 14.Qa7+–) 13.Qd8 Rd8 14.f3 (14.a4 Nd5 15.Nd5 ed5+–) 14...Ne5 15.Rd1 b5 (15...Ng6 16.Bc4+–) 16.Nb5 Bb5 17.Bb5 c6 18.Ba6 Ned7 (18...Ng6 19.Kf2+–) 19.Kf2 1–0. pietrek – hadziuk, rancho, 2009.

3.Nc3 Nf6 –/+.

3.Bc4 e6 4.Ne2 Nc6 (4...Bb4 5.Nbc3–+) 5.Bb2 Bb4?? (better is 5...Nf6–+) 6.Bg7+– Qg5 (6...e3 7.0–0 (7.Bh8?! Qh4 8.0–0 ef2 9.Rf2 Qc4+/–) 7...Qh4 8.f4+– (8.Bh8?! ef2 9.Rf2 Qc4+/–)) 7.Bh8 f6 (7...Nf6 8.Ng3 Bd7 9.c3+–) 8.Ng3 e3 (8...Ne5 9.Be2 (9.Ne4?! Qg2 10.Qh5 Kf8+–) 9...Ng6 10.Bh5+–) 9.fe3 (better is 9.Qh5 Qh5 10.Nh5 ef2 11.Kf2 Kf7+–) 9...e5 (9...Qe3 10.Qe2 Qe5 11.c3+–) 10.c3 (better is 10.Qh5 Qh5 11.Nh5 Bg4 12.Nf6 Nf6 13.Bf6 Bf5+–) 10...Bg4 (10...Bd6 11.0–0 f5 12.Qh5 Qh5 13.Nh5+–) 11.Qb3 (11.cb4 Bd1 12.Kd1 0–0–0+=) 11...0–0–0 12.h4 Qg6 (12...Qh6 13.cb4 Nge7 14.Be6 Kb8 15.Bg4+–) 13.Bf7 Qd3 (13...Qh6 14.cb4 Nge7 15.b5 Rh8 16.bc6 Nc6 17.Nc3+–) 14.cb4 Nh6 (14...Qb3 15.Bb3 Nb4 16.0–0+–) 15.Qd3 Rd3 16.Bb3 f5 17.b5 Na5 18.Be6 Kd8 19.Be5 Ke7 20.Bc7 Ke6 21.Ba5 f4 22.Ne2 fe3 23.Nf4 Kf5 24.Nd3 1–0. pietrek – hadziuk, internet, 2009. (=1.e4 d5 2.b4 de4)

3.Qe2 f5 4.f3 e5 5.fe4 Qh4 6.g3 Qe4 7.Qe4 fe4 8.Bb2 –/+.

3.Qe2 Nf6 4.Qe3 (4...e5 5.a3–/+; 4.Bb2 e6 5.a3 c5–/+). sirrad – AmericanRusky, ChessWorld.net, 2005.

3.Nh3 e6 4.Bc4 (4.a3 Nf6–/+) 4...b6 (4...Qd4 5.Bb5 c6 6.c3–+) 5.Nc3 (5.c3!?–/+) 5...Bb4–+ 6.Ne4?? (6.Bb2 Nf6 7.Qe2–+) 6...Bb7 (better is 6...Qd4 7.c3 Qe4 (< 7...Qc4 8.Neg5 f6 9.cb4 fg5 10.Qh5 Kd7 11.Qg5–+) 8.Be2 Bb7–+) 7.Qe2? (7.Qg4 Qd4 8.Nd6 Qd6 9.Qg7 Ke7 10.Qh8 Nf6–+ (10...Bg2 11.Rg1 Nf6 12.Rg2 Qe5 13.Kd1 Qa1 14.Rg8=)) 7...Nd7 (better is 7...Qd4!? 8.Rb1 Qe4 (8...Be4?! 9.Rb4 Bc6 10.Bb2=) 9.Qe4 Be4–+) 8.Be6? (better is 8.Rb1 Ngf6 9.Nf6 Qf6 10.Bb2–/+) 8…Be4?? (9.Qe4 fe6 10.Qb4 c5+=; better is 8...fe6 9.a3 Be7–+) 0–1. masterdono – bueno, Live Game Caissa's Web, 2005.

3.Nh3 Bh3 4.gh3 Nf6 5.Nc3 –+.

3.Bc4 Qd4!?

4.Bb5 c6 5.c3 –+.

4.d3 Qa1 5.Qh5 Qb1 6.Qf7 Kd7 7.Kd2 Qb4 8.c3 Qa5 9.Be6 Kc6 10.Bg4 Bg4 (11.f3 Bd7 12.fe4 Nf6 13.Qc4 Kb6–+) 0–1. Habbe,Jannis – Metzler,Jonas, Schleswig Holstein–ch U10, 2000.

2.f3 e5

3.a3 a5 –/+.

3.Bb2 Nd7 –/+.

3.Bb2 e4 4.e3 Nf6 (4...Bb4?? 5.Bg7 Qg5 6.Bh8 Qe3 7.Qe2 Qe2 8.Ne2+–) 5.a3 Bd6 6.Nc3 0–0 7.Nb5 Be7 8.Be5 Nbd7?? (better is 8...Ne8=+) 9.Bc7+– (9.Nc7? Ne5 10.Na8 Be6–+) 9...Qe8 10.Nd6 Bd6 11.Bd6 Ne5 12.Bf8 Kf8 13.f4 Bg4 14.Be2 Be2 15.Ne2 (15.Ke2?! Nc4+/–) 15...Rc8?? (better is 15...Nc4+–) 16.fe5 Qe5 17.Nd4 1–0. marre (1835) – zulu (1665), GameColony.com, 2003.

3.e3 Bb4 4.Bb5 Bd7 5.Bd3 Nf6 6.e4 de4 7.Bc4 (7.fe4 Bc5 8.Nf3–+) 7...0–0 8.c3 Bc5 9.fe4 (9.Ba3 ef3 10.Nf3 Ba3 11.Na3 Bg4–+) 9...Ne4 10.d4 (10.Qf3 Nf2 11.Qd5 Bb6–+) 10...ed4 (10...Qh4 11.g3 Ng3 12.Nf3 Qe4 13.Be2 Nh1 14.dc5–+) 11.Bd3 (11.Ne2 dc3 12.Qb3 Qh4 13.g3 Bf2 14.Kd1 Qd8–+) 11...Qh4 12.Kf1 (12.g3 Ng3! 13.Bg5 Re8 14.Ne2–+) 12…Qf2 0–1. Stanley – Ulibear, playchess.de, 2004. (=1.f3 d5 2.b4 e5)

3.e4 Bb4 4.ed5 Qd5 5.h4 (5.Nc3!? Bc3 6.dc3–/+) 5...Nf6 6.Bb5?? (6.Nc3 Bc3 7.dc3 Qa5–+) 6...c6 (better is 6...Qb5 7.Qe2 Qc5–+) 7.Ba4 Bf5 (better is 7...0–0–+) 8.Rh3?? (better is 8.Bb3 Qd6 9.g4–+) 8...Bc5 (8...Qd4!? 9.Ne2 Qa1 10.g4–+) 9.Nc3 (9.Bb2 Bg1 10.g4–+) 9...Qd4 10.Rb1 (10.Qe2 Qg1 11.Qf1 Qf1 12.Kf1 Bh3 13.gh3–+) 10...Qf2 0–1. harlz – windmill, Live Game Caissa's Web, 2004.

3.Bb2 Nc6

4.a3 a6 5.Nc3 Nf6 6.e4 d4 7.Nce2 Be6 8.c3 Be7 9.cd4 ed4 10.Nf4 Bd7 11.Nge2 Bd6 12.Nd3 Be7 13.e5 (< 13.Nd4 Nd4 14.Bd4 Bb5 15.Bf6 Bf6–/+) 13...Nd5 14.Nd4 Nd4 15.Bd4 Be6 16.Qa4 c6 17.Nc5 Bc5 18.bc5 (< 18.Bc5 Qg5 19.Rc1 Qe5 20.Kf2 Qg5=) 18...0–0 19.Rb1 Rb8 20.Qc2 Nf4 21.Be3 Nd5 22.Bd3 h6 23.0–0 Ne3 24.de3 Qg5 25.f4 Qg4 26.f5 Bd5? (26...Bd7+–) 27.e4 Be4 28.Be4 Rfd8 (28...Rfe8 29.e6 fe6 30.Qc4+–) 29.Rb4 Qg5 30.Qc3 Qe7 (30...a5 31.Ra4+–) 31.f6 gf6 32.ef6 Qe6 (32...Qf8+–) 33.Qg3 Kf8 34.Qg7 Ke8 35.Qg8 Kd7 36.Rd1 Kc7 37.Qg3 Kc8 38.Rd8 Kd8 39.Qb8 Kd7 1–0. orane (2170) – upmc (1830), Live Game Caissa's Web, 2004.

4.a3 Qh4 5.g3 Qd8 6.b5 Nd4 7.e3 Nf5 8.Be5 Nf6 9.Nc3 Be7 10.Bd3 0–0 11.Nge2 Be6 12.0–0 Nh5?? (better is 12...Nd7 13.f4 Nc5=) 13.Bf5 Bf5 14.g4 Bh4?! (14...f6 15.Bd4 c5 16.bc6 bc6+–) 15.gf5 (15.gh5?! Bh3 16.f4 Re8+–) 15...Qg5 16.Kh1 Qf5 17.f4 Rae8 18.Bc7 Qh3 19.f5 (worse is 19.Nd5 Bg3 20.Ng3 Ng3 21.Kg1 Nf1 22.Qf1 Qf5+–) 19...Nf6 (19...Bf6 20.b6 ab6 21.Rb1+–) 20.Bd6 Ng4 (20...Bg5 21.Ng1 Qh6 22.Bf8 Kf8+–) 21.Ng1 Ne3 22.Nh3 Nd1 23.Rad1 (23.Rad1 d4 24.Bf8 Kf8 25.Nd5+–) 1–0. marre (1855) – Stif (1735), GameColony.com, 2003. (=1.f3 d5 2.b4 e5 3.Bb2 Nc6)

2.f4 c6

3.d3 Qd6 4.a3 g6 5.d4 Bg7 6.Nf3 Nf6 7.e3 0–0 8.Be2 Bg4 9.0–0 Nbd7 10.Ne5 Be2 11.Qe2 Ne4 12.c4 e6 13.c5 Qc7 14.Bb2 f5 15.Nd2 a6 16.Ne4 de4 17.Nc4 Rad8 18.Nd6 Nf6 19.h3 Ne8 20.Nc4 Nf6 21.Ne5 Nd7 22.a4 Ne5 23.de5 Rd5 24.Rfd1 Rfd8 25.Bd4 Qd7 26.Rdb1 Bf8 27.Qc4 Kf7 28.b5 ab5 29.ab5 cb5 30.Rb5 Qc8 31.Ra7 R8d7 32.Qb3 b6 33.Rd7 Qd7 34.Rb6 Kg8 35.c6 Qc7 36.Qc4 Qc8 37.c7 Kf7 38.Rb8 Rd4 39.ed4 1–0. snowcert (2460) – wstanevans (2330), net–chess.com, 2014. (=1.f4 d5 2.b4 c6)

3.e3 e6 4.Ba3 Ne7 5.Nf3 Nf5 6.Bd3 Be7 7.0–0 0–0 8.Qe2 b6 9.e4 de4 10.Qe4 Qd5 11.Re1 Qe4 12.Be4 a5? (better is 12...Nd6=) 13.Bf5+– ef5? (better is 13...ab4 14.Bb2 Bd6+–) 14.Re7 Be6 (14...ab4 15.Bb4 c5 16.Bc3+–) 15.ba5 Ra5 16.Nd4 Rc5 (16...Bc8 17.Nb3 Rd5+–) 17.Bc5 bc5 18.Ne6 (18.Ne6 fe6 19.Nc3+–) 1–0. b4_player – manne, casual, 2013.

3.e3 f6 4.Nc3 e5 5.fe5 fe5 6.Qh5 g6?? (better is 6...Kd7=) 7.Qe5+– Ne7 8.Qh8 1–0. b4_player – albert, internet, 2013.

3.Nf3 Qc7 4.e3 Bg4 5.Be2 e6 6.a3 Nf6 7.Nc3 Bd6 8.0–0 0–0 9.Bb2 Nbd7 10.b5 c5 11.h3 Bf3 12.Bf3 a6 13.a4 Nb6 14.ba6 ba6 15.Qe2 Nc4 (better is 15...Rfb8!?=) 16.Nd5!+/– ed5 (16...ed5 17.Bf6 Decoy; 16...Nd5 17.Qc4 Remove defender) 17.Bf6 gf6 18.Bd5 Nb6 19.Ba8 Na8? (better is 19...Ra8 20.a5 Nd7+/–) 20.Qa6+– Kh8 21.a5 Rg8 22.Ra3 Qd7 (22...Kg7 23.Rb1 c4 24.Ra4+–) 23.Rd3 Qh3 (23...Rd8+–) 24.Qc6 Be7 25.Qa8!! Ra8 26.gh3 Ra5 (26...Kg7 27.Rd7 Bf8 28.Kf2+–) 27.Rd7 Bf8 (27...Ra2 28.Re7 Rc2 29.Rf7 Rd2 30.Rc1+–) 28.Rd8 Kg7 29.Kf2 Be7 (29...f5 30.Rg1 Kf6 31.Rf8+–) 30.Rg1 Kh6 31.Rd7 Bf8 32.Rf7 Ra8 33.Rf6 1–0. b4_player – mandolin, casual, 2013.

3.Nf3 Nf6 4.e3 h6 5.Bb2 e6 6.a3 Bd7 7.Nc3 Be7 8.Ne5 0–0 9.Bd3 Bd6 10.0–0 Be5 11.fe5 Ne4? (better is 11...Nh7!?+/–) 12.Ne4+– de4 13.Be4 Qg5 14.Rf4 f5? (14...a5+–) 15.ef6! Rf6 (15...gf6 16.Rg4 Combination) 16.Bf6 (16.Bf6 gf6 17.Rg4+–) 1–0. b4_player – manne, casual, 2013.

3.Nf3 Nd7

4.Nc3 e6 5.b5 c5 6.e3 b6 7.Be2 Ngf6 8.0–0 Be7 9.Bb2 0–0 10.Qe1 Ne4 11.Ne4 de4 12.Qg3 f5?? (better is 12...Bf6 13.Ne5 Bh4=) 13.Qg7 1–0. b4_player – kaller, internet, 2013.

4.e3 Ngf6 5.Be2 e6 6.a3 c5 7.0–0 (7.bc5 Bc5 8.Bb2 0–0=) 7...cb4+= 8.Bb2 ba3 9.Na3 Be7 10.Nb5 a6 11.Nbd4 0–0 12.c4 dc4 13.Bc4 Nb6 14.Bd3 Nbd5 15.Qb3 Qb6 16.Qb6 Nb6 17.Ba3 Ba3 18.Ra3 Bd7 (better is 18...Nbd5!?–/+) 19.Rb1= Nbd5 20.Rb7 Rfb8 (better is 20...Bc8 21.Rb1 Rd8=) 21.Ra6+/– Ra6?? (better is 21...Bc8 22.Rb8 Rb8+/–) 22.Rb8+– (22.Ba6?! Ra8 23.Bc4 Bc8+/–) 22...Be8 23.Ba6 1–0. Fritz 11 – bigsumo, internet, 2013.

3.Nf3 e6

4.Ba3 Na6 (better is 4...Qf6!? 5.Nc3 Qf4–/+) 5.e3= Nb4 6.c3 Na6 7.Ba6 ba6 8.Bf8 Kf8 9.c4 Nf6 10.Nc3 dc4 11.Rb1 Nd5 12.Qa4 Nc3 (12...Nb6!? 13.Qc6 Kg8=) 13.dc3+= Qd5? (13...Qd3 14.Kf2 Qd7+/– (14...Qc3? 15.Rhd1+–)) 14.Rd1+– Qc5 15.Rd8 Ke7 16.Rh8 Qe3 17.Kf1 Qc1 (17...Rb8 18.Qd1 Qd3 19.Qd3 cd3+–) 18.Kf2 Qh1 (18...Qb2 19.Kg3 Bb7 20.Rh7 Rd8+–) 19.Qa5 1–0. Fritz 11 – isstanblue, internet, 2013.

4.Bb2 Nf6 (4...Bb4?? 5.Bg7 Be7 6.Bh8+–) 5.a3 Nbd7 6.e3 a5 7.b5 Bd6 8.g3 Qe7 9.Ne5 c5 10.Bg2 0–0 11.0–0 Nb6 12.d3 Rd8 13.Qe2 Na4 14.c4 (14.Ra2!?=) 14...Nb2+= 15.Qb2 Be5 16.fe5 Ng4 Black prepares d4 17.cd5 (17.Qe2 Qg5 18.Nd2 Ne3–/+) 17...ed5 18.e4 d4 19.Nd2 Ne5 20.Qc2 Be6 21.a4 Rac8 22.Nf3 Ng4 23.Qd2 Ne3 24.Qa5 (24.Rf2–+) 24...Nf1 25.Bf1 Bg4 26.Kf2 (26.Bg2 c4–+) 26...c4! 27.Qd2 (27.dc4 Qe4 Deflection) 27...Qf6 28.Qf4 Bf3 (better is 28...Qf4 29.gf4 c3–+) 29.Qf6–/+ gf6 30.Kf3 c3 31.a5 Rc5 32.a6 (32.b6 Ra8 33.Rc1 Raa5–+) 32...ba6 33.ba6 Ra8 34.a7 (34.Bh3–+) 34...Rc7 35.Rc1 Raa7 (better is 35...Rca7 36.Be2 Ra1 37.Rc2–+) 36.Bh3 (36.Be2–+) 36...Ra2 37.Bf5 Rd2 38.e5 fe5 39.Ke4 f6 40.Be6 Kg7 0–1. Brozhik,V (2145) – Vorobiov,Ivan, Independence Cup A, Kyiv UKR, 2008.

3.Nf3 Bg4

4.Nc3 Bf3 5.ef3 e6 6.Rb1 Ne7 7.Bd3 Nd7 8.0–0 Nf5 9.Bf5 ef5 10.Re1 Be7 11.Qe2 f6 (better is 11...Nf8!?=) 12.b5+/– Kf7? (better is 12...Kf8!? 13.Qe6 Bc5 14.Kf1 Qc7+/–) 13.Qe6+– Kf8 14.bc6 bc6 (14...Nb6 15.cb7 Rb8 16.d4+– (16.Qf5?! g6 17.Qe6 d4+–)) 15.Rb7 (15.Rb7 Qe8 16.Rd7+–; 15.Qf5?! Bc5 16.Kh1 Qc7+/–; 15.Qc6?! Nb6+/–) 1–0. b4_player – manne, casual, 2013.

4.e3 Nd7 5.Be2 Ngf6 6.0–0 Bf3 7.Rf3 e5 8.d4 e4 9.Rg3 g6 10.b5 Bg7 11.bc6 bc6 12.c4 0–0 13.Nd2 Nb6 14.Ba3 Re8 15.Rb1 Qd7 16.cd5 cd5? (better is 16...Nfd5!? 17.Bb2 Rab8+=) 17.Bb5+/– Qc7 18.Rc1 Qb7 19.Be8 Ne8 20.Qf1 f5 21.Rc2 Nc7 22.h4 Nb5?? (better is 22...Ne6+/–) 23.Qb5+– 1–0. b4_player – kemme, casual, 2013.

2.f4 d4

3.Nf3 c6 4.Bb2+= e5 (4...Bg4!?+=) 5.fe5+/– Bb4 6.Bd4 Bf5 (6...Nh6 7.a3 Be7 8.Nc3+/–) 7.a3 Be7 8.Nc3 b6 (8...Nh6 9.Qb1 b6 10.Be3+–) 9.e4 Bg4 10.e6! fe6?! (10...fe6 11.Bg7 Discovered attack; 10...Be6 11.Bg7 Discovered attack) 11.Bg7 b5 (11...Bh4 12.g3 Bf6 13.Bh8 Bh8+–) 12.Bh8 Bf3 (12...Bh4 13.g3 Bf6 14.Bf6 Nf6 15.Be2 Bf3 16.Bf3+–) 13.Qf3 Nf6 (13...Kd7 14.Be5 Kc8 15.a4+–) 14.Bf6 Bf6 15.e5! Be5 (15...Be7 16.Bb5! Kd7 17.Rb1+–) 16.Qh5 Kd7 17.Qe5 Kc8 18.Bb5! cb5 19.Qe4 Nd7 20.Qa8 Kc7 21.Nb5 1–0. pierred – anony, internet, 2014.

3.Nf3 Nc6 4.b5 Na5 5.c3 dc3 6.Nc3 Nc4 7.e4 e6?? (better is 7...Nb6+=) 8.Bc4+– Bc5 9.d4 Bb4 10.Qb3 a5 (10...Ba5 11.0–0+–) 11.ba6! Bc3 (11...ba6 12.Qa4 Double attack) 12.Qc3 ba6 13.0–0 Ne7 14.d5 ed5 15.ed5 (15.Qg7?! Rg8 16.Qh7 dc4+–) 15...Bb7 (15...h5 16.Qg7 Rg8 17.Qh7+–) 16.Re1 0–0 (16...c5 17.Qg7 Rf8 18.f5+–) 17.Bb2 Bd5 (17...Nf5 18.Bd3 Qf6 19.Qf6 gf6 20.Bf5 Bd5 21.Bf6 Rfe8+–) 18.Qg7 1–0. Fritz 11 – moree1969, 2013.

3.Nf3 e6 4.Bb2 Bb4 5.Nd4 f6 6.e3 c5 7.Bb5 Nd7? (better is 7...Kf7!? 8.a3 cd4 9.ab4 de3 10.Qh5 g6+=) 8.Ne6+– Qe7?? (better is 8...Qb6 9.f5 Ke7 10.Bd7 Bd7 11.Ng7 Bd2 12.Nd2 Qb2+–) 9.Nc7 Kf8 10.Na8 Qe3 11.Qe2 Qf4 12.Qe6 Ne7 (12...Qb8 13.0–0 c4 14.Qc4+–) 13.Bd7 Bd7 14.Qd7 Qe4 15.Kd1 Qg2 (15...Qc6 16.Qd8 Qe8 17.Qe8 Ke8 18.Nc7 Kf7+–) 16.Re1 c4 17.Qd8 Kf7 18.Qh8 Qf3 19.Kc1 Qf2 20.Rd1 b5 21.Nc7 Qh2 22.Qe8 1–0. b4_player – jan, internet, 2013.

3.Nf3 e5

4.fe5 a6 5.c3 Nc6 6.cd4 Nd4 7.e3 Nf3 8.Qf3 Qh4 9.g3 Bg4?? (better is 9...Qb4 10.Ba3 Qg4 11.Qg4 Bg4 12.Bf8 Kf8+=) 10.Qb7+– (10.gh4?! Bf3 11.Rg1 Nh6=) 10...Qd8 11.Bg2 Rb8 12.Bc6 Bd7 13.Bd7 Kd7 14.Qa6 Bb4 15.a3 Bc5 16.Nc3 Ne7 (16...Nh6 17.Qa4 Kc8 18.d4+–) 17.0–0 Rf8 18.Qc4 Bb6 19.a4 Qe8 (19...Ke8+–) 20.a5 Ba7 21.Ba3 Kc8 (21...Kd8+–) 22.Qa6 Rb7 23.Be7 Qe7 24.Rab1 Qe6 (24...c6+–) 25.Qe6 (25.Qe6 fe6 26.Rf8 Kd7 27.Rb7+–) 1–0. b4_player – manne, casual, 2013.

4.fe5 Bg4 5.c3+/– Bf3 (5...Nc6 6.Qa4+/–) 6.ef3 Nh6 (6...Qg5 7.g3 (7.cd4?! Qh4 8.g3 Qd4+=) 7...Qe5 8.Kf2+/–) 7.Qa4+– c6 8.Qc2 a6 (8...Nd7 9.Qe4+– (worse is 9.cd4 Qh4 10.g3 Qd4+=)) 9.Qe4 dc3 10.Nc3 Be7 (10...Nd7 11.Rb1+–) 11.Bc4 Bh4 (11...Nd7 12.Rb1+–) 12.g3 Be7 13.0–0 b5 (13...Nd7 14.a3+–) 14.Bb3 Qb6 (14...0–0 15.a4 Nd7 16.Re1+–) 15.Kg2 Nd7 (15...0–0 16.a4 ba4 17.Bc2+–) 16.Re1 0–0 (16...Nf8 17.a4 Rd8 18.ab5 ab5 19.d3+–) 17.e6 Nf6 18.ef7 Nf7 19.Qe7 Rae8 20.Bf7 Rf7 21.Qc5 Re1 (21...Qc5 22.Re8 Rf8 23.bc5 Re8+–) 22.Qb6 Nd5 23.Nd5 cd5 24.Qa6 Re2 25.Kg1 Re1 26.Kf2 Rfe7 27.Qb5 h5 28.Bb2 R1e2 29.Qe2 Re2 30.Ke2 g5 31.b5 1–0. pierred – anony, internet, 2014.

2.f4 Qd6

3.c3 Qf4 4.d4 Qf5 5.g3 a5 6.Bh3? Qe4–+ 7.Nf3 Bh3 8.Rg1 ab4 ½–½. lavida – goelvivek, internet, 2007.

3.Nc3 Nf6 –/+.

3.d3 Qb4 4.c3 Qd6 5.e3 –/+.

3.d3 Nf6 4.Bd2 e5 5.fe5 (5.e3 ef4 6.ef4 d4–/+) 5...Qe5 6.c3 (6.Na3 d4–/+) 6...Bd6 (6...Bb4 7.Nf3 Qe6 8.Qa4 Qc6 9.Qb4+–) 7.Qc1 (7.Qa4 Bd7 8.Qb3 0–0–/+) 7...Bf5 (7...Bb4 8.Nf3 Qe6 9.cb4+–) 8.e3 (8.Nf3 Qe6 9.Nd4 Qd7+=) 8...0–0 (8...Bb4 9.Nf3 Qe7 10.cb4+–) 9.Be2 (9.Nf3 Qe6–/+) 9...Qe7 (9...Bb4 10.Nf3 Qe7 11.cb4 a5+–) 10.Nf3–/+ Ng4 11.Na3 Nd7 (11...Nh2 12.Nh2 Qh4 13.Kd1 Bh2 14.Be1+/–) 12.Nb5+= Nge5 (12...Nde5 13.Nd6 Qd6 14.Qb1+=) 13.Nd6= Qd6 14.d4? (better is 14.Qc2!?=) 14...Nd3–+ 15.Bd3 Bd3 16.Kf2 f6 (16...Nf6 17.Ne5 Ne4 18.Kg1–+) 17.Qg1 (17.Ne1 Bc4–/+) 17...Rfe8 18.h4 (18.Qd1 Re4–/+) 18...Nf8 (18...Re4 19.h5–/+) 19.g4 (19.h5 a5–/+) 19...Be4–+ 20.Rh3 (20.Qg3 Qe7–+) 20...Nd7 (20...a5 21.Qg3 Qc6 22.g5–+) 21.a4 (21.Ke1 Qe7–+) 21...Nb6 22.Be1 (22.Qg3 Qc6–+) 22...Nc4 (22...a5 23.b5–+) 23.Nd2 Nb6?? (23...Nd2!? 24.Bd2 Qe6 25.Ke1–+) 24.a5 (24.Nf3 a5 25.b5–+) 24...Nd7 25.Qf1 c6 (25...Qe6 26.Ne4 Qe4 27.Qb5–/+) 26.Kg1 Qe6 (26...Bc2 27.Rc1 Bg6 28.h5+=) 27.Qf4 (27.Ne4 Qe4 28.Qf5 Re7+=) 27...Rac8 (27...Bd3 28.Rf3–/+) 28.Rg3 (28.Ne4 Qe4 29.Qf5 Re7+=) 28...Nf8 (28...Bd3 29.h5–/+) 29.Qf1 (29.Ne4!? Qe4 30.Qe4 Re4 31.Rc1+=) 29...Ng6–/+ 30.g5 (30.Ne4 Qe4 31.h5 Ne7–/+) 30...Rf8 (30...fg5 31.h5 Rf8 32.Qe2–/+) 31.Qh3 (31.Ne4 Qe4 (31...de4?! 32.Qh3 f5 33.h5+=) 32.Qf3 Qh4–/+) 31...Qh3 (better is 31...Bf5 32.Qh1 fg5–+) 32.Rh3+= fg5 (32...Bf5 33.Rf3 Bg4 34.Rg3+=) 33.Ne4= de4 34.h5 (34.a6!? b5 35.hg5=) 34...Ne7–/+ 35.h6 (35.c4 Nf5 36.Ra3 g4–/+) 35...Nf5 (35...gh6 36.Rh6 Nf5 37.Re6–/+) 36.hg7 Kg7 37.c4? (better is 37.a6 b5 38.Bg3–/+) 37...g4–+ 38.Rh2 Kg6 (38...Ne3 39.Bd2 Nc4 40.Bh6 Kg6 41.Bf8 Rf8–+) 39.Bd2 (39.Bf2 g3 40.Rg2 Kh5 41.Bg3 Ne3 42.Rh2 Kg6–/+) 39...h5 40.Rf1 Ng3 (40...h4 41.Rf4 g3 42.Rh3–+) 41.Rff2 (41.Rf8 Rf8 42.d5 cd5 43.cd5 Rd8–+) 41...Rf2 (41...Rf2 42.Kf2 Nf5–+; 41...Kg5!? 42.Be1 Nf5 43.a6 ba6 44.Bd2–+) 0–1. Dickel,Gisbert – Oberling,Rudolf, Baden MA Leimen, 2001.

3.e3 e5 4.fe5 Qe5 5.Nc3 d4 (better is 5...Bb4 6.Bb2 Nf6–/+) 6.Nf3+= Qf6 7.ed4 Bb4 8.Bb5 c6 9.Bc4 Bg4 10.Ne4 Qf4 11.0–0 Qe4 (better is 11...f5!? 12.d3 Qc7+/–) 12.Re1+– Bf3 13.gf3 Qe1 14.Qe1 Ne7 15.Rb1 c5 (15...b5 16.Rb4 bc4+–) 16.c3 b6 (16...g5 17.cb4 cd4 18.Bd5+–) 17.Bd5 Nbc6 (17...Ba5+–) 18.Bc6 (18.Bc6 Kd8 19.Ba8+–) 1–0. b4_player – verry, casual, 2013.

3.Nf3 Qb4 4.e3 Bg4 5.Nc3 Qd6 6.Rb1 b6 7.Bb2 c6 8.Be2 Nd7 9.0–0 Ngf6 10.Nd4 Be2 11.Qe2 e6 12.Qa6 c5 (12...Nc5 13.Qe2–/+) 13.Ndb5 (better is 13.Ncb5 Qb8 14.Nc6+=) 13...Qb8–/+ 14.Ne2 Be7 15.f5 e5 16.d4 cd4 17.ed4 0–0 18.de5 Ne5 19.Nbd4 Neg4 20.g3 Ne4 21.Nf4 Nd2 22.Qe2 Nb1 (better is 22...Nf1!? 23.Qg4 Ne3=) 23.Qg4+= Qe5 24.Rb1 Bc5 25.Nd3 Qe4 26.Qf4 (26.Qe4 de4 27.Nc5 bc5+/–) 26...Rae8 27.Rf1 f6 28.Nc5 bc5 29.Ne6 Rf7 (29...Qc2!? 30.Nf8 Re2+/–) 30.Qe4+– de4 31.Nc5 Rc7 32.Bd4 e3 (better is 32...Rec8!? 33.Ne4 Rc2+/–) 33.c3+– e2 34.Re1 a5 (34...g6 35.Kf2+–) 35.Ne6 Rb7 36.Re2 Rb1 37.Kf2 a4 (37...g6 38.Bf6 gf5 39.Bd4+–) 38.c4 Rc8 39.c5 a3 40.Ke3 Kf7 41.Ke4 g6 42.Kd5 gf5 43.c6 Rc1 44.Bc5 Ra8 (44...Rd1 45.Nd4 h5+–) 45.c7 Rc8 46.Kc6 1–0. roy1nc6 (1890) – belvedere (1815), gameknot.com, 2012.

3.a3 Qf4

4.d4 Qd6 5.Nf3 Bg4 (5...Nf6 6.e3–/+) 6.g3 Nd7 7.Bg2 Nb6 (7...e5!?–/+) 8.Bf4+= Qd7 (8...Qd8!?+=) 9.Ne5= Qe6 10.Ng4 Qg4 11.Nc3 (11.Bc7 Nc4 12.Qd3 Qd7=) 11...Nf6 (11...c6 12.0–0+=) 12.e3 (better is 12.Nb5!? Kd7 13.Bc7=) 12...Qd1+= 13.Kd1 c6 14.e4 e6 15.e5 Nh5 (15...Nfd7 16.Bf1–/+) 16.Ne2 (16.Bd2!? g6 17.g4+=) 16...Nf4–/+ 17.Nf4 g6 18.Nd3 Bh6 19.Nc5 (19.Nb2 Rf8–/+) 19...0–0–0 (19...Nc4!? 20.Ke2 Ne3–+) 20.Rf1+= Rhf8 21.Ke2 Bg7 (21...Nc4 22.Rf3+=) 22.Bh3 Rde8 23.Rae1 (23.Rf3 Nd7=) 23...Nd7 (23...Nc4 24.a4–/+) 24.Nd7 Kd7 25.Kd3 f5 26.Rb1 Kc7 27.Rf2 g5 28.c4 g4 29.Bf1 Rc8 30.c5 a6 31.h3 h5 32.hg4 hg4 33.a4 Bh6 34.Be2 Rg8 35.Rh2 Rh8 36.Rbh1 Bg7 37.Rh7 Rh7 38.Rh7 Rg8 39.Kc3 Kb8 40.b5 ab5 41.ab5 b6 42.cb6 cb5?? 43.Bb5+– Kb7? 44.Bd7 Kb6 45.Be6 Bf8 46.Bg8 1–0. cervejarj (2105) – aleandy (2240), net–chess.com, 2013. (=1.f4 d5 2.b4 Qd6)

4.Nf3 e5 5.e3 Qf5 6.Be2 Nf6 7.0–0 Bd6 8.d3 Qe6 9.Bb2 Nbd7 10.Nbd2 0–0 11.c4 c5 12.d4 ed4 13.ed4 b6 14.Kh1 cb4 15.ab4 Bb4 16.Ne5 Bb7 17.cd5 Bd5 18.Bd3 a5 19.Ndf3 h6 20.Rc1 Rfc8 21.Qe2 Nf8 22.Nd2 Rc1 23.Rc1 Rc8 24.Ndc4 N8d7 25.Rf1 Kf8 26.Qf2 Rc7 27.Bf5 Qe8 28.Bd7 Nd7 29.Nd7 Qd7 30.Nb6 Qd6 31.Nd5 Qd5 32.Qf4 Rc2 33.Qb8 Ke7 34.Qa7 Kd8 35.Qb8 Rc8 36.Qb6 Rc7 37.Rc1 Qd6 38.Qb8 Kd7 39.Qb5 Kd8 40.Rf1 f6 41.Qd3 Re7 42.Bc1 Qd5 43.Bf4 Qe4 44.Qb5 Qb7 45.Qf5 Qd7 46.Qd3 Qd5 47.Qa6 Qb7 48.Qc4 Qd7 49.d5 Qc8 50.Qb5 Qb7 51.Qd3 Rd7 52.Rd1 Bd6 53.Rb1 Bb4 54.d6 Ke8 55.Qg6 Kf8 56.Rb2 Qd5 57.Qg4 f5 58.Qe2 Qe4 59.Qe4 fe4 60.Re2 Bd6 61.Re4 Bf4 62.Rf4 Rf7 63.g3 Rf4 0–1. snowcert (2460) – ziggyblitz (2420), net–chess.com, 2014. (=1.f4 d5 2.b4 Qd6)

3.e3 Qb4

4.Ba3 Qa5 5.Nf3 Nf6 6.Be2 Bg4 7.0–0 e6 8.Bf8 Rf8 9.Nc3 Nc6 10.Rb1!? Nb4 11.a3 Bf3 12.Bf3 Qa3 13.Ra1=.

4.Nc3 Nf6 +=.

4.c4 dc4 5.Qc2 –/+.

4.c4 g6 5.Nc3 Bg7 (5...dc4 6.Nd5 Qd6 7.Bb2+=) 6.Rb1= Qc5 (6...Qd6!?=) 7.Nd5+= Nf6 (7...Qd6 8.Qa4 Nc6 9.d4+=) 8.Qa4 (better is 8.Ba3! Qc6 9.Ne7+–) 8...c6?? (better is 8...Bd7 9.Qb3 Nd5 10.cd5 b6+=) 9.Ba3+– (9.Ba3 Qd5 10.cd5 Nd5 11.e4+–) 1–0. aspasio (2820) – aleandy (2240), net–chess.com, 2013. (=1.f4 d5 2.b4 Qd6 3.e3 Qb4)

4.Nf3 Nc6 5.Nc3 e6 6.Rb1 Qe7 7.Bb5 Bd7 8.0–0 Nf6 9.Ne5 a6 10.Bc6 Bc6 11.Ne2 Nd7 12.Nd4 Ne5 13.fe5 f5 14.ef6 gf6 15.c4 0–0–0 (better is 15...f5!?=) 16.Nc6+/– bc6 17.Qa4 Kd7 18.cd5 ed5 19.Bb2 Bg7 20.Qg4 Ke8 21.Rbc1 c5 22.Qh5 Kd7 (22...Qf7 23.Qf7 Kf7 24.Rc5+–) 23.Qd5+– Qd6 24.Qf5 Kc6 (24...Qe6 25.Qc5 Rc8+–) 25.Bd4 Kb7 26.Rc5 (26.Rc5 c6 27.Rb1 Kc7 28.Bc3+–) 1–0. flyingtiger – aleandy (2240), net–chess.com, 2013. (=1.f4 d5 2.b4 Qd6 3.e3 Qb4)

4.Nf3 Nd7 5.Nc3 c6 6.a4 Qd6 7.Ba3 Qc7 8.Be2 Ngf6 9.Qc1 e6 10.Bf8 Nf8 11.0–0 N8d7 12.Qa3 a6 13.a5 c5 14.Rab1 0–0 15.g3 Ne4 16.Ne4 de4 17.Ng5 Qc6 18.d3 ed3 19.cd3 g6 20.Rfc1 Qc7 21.Ne4 e5 22.Nc5 Nc5 (better is 22...ef4!? 23.Ne4 Qd8 24.gf4 b5+/–) 23.Rc5+– Qe7 24.fe5 Bh3 25.Qb4 Rab8 26.d4 Rfd8 27.e4 f6 28.Qc3 fe5 29.Re5 Qd6 30.g4 Qd4 31.Qd4 Rd4 32.Rb3 Rd2 33.Bc4 (33.Rh3?! Re2 34.Rf3 b5 35.ab6 Rb6=) 33...Kg7 34.Rh3 Ra2 (34...b5 35.Re7 Kf6 36.Re6 Kg5+–) 35.Ba2 Re8 (35...Rc8 36.Re7 Kf6 37.Rhh7 Kg5+–) 36.Re8 b6 (36...g5 37.Re7 Kf8 38.Rf7 Ke8 39.Rhh7 b5 40.Rh8) 37.g5 ba5 (37...h5 38.Rd3 ba5 39.Rd7) 38.Rg8 1–0. b4_player – hillary, internet, 2013.

4.Nf3 Nf6 5.Ba3 Qa5 6.Be2 e6 7.Bf8 Rf8 8.0–0 h6 9.Ne5 Nfd7 10.d4 Ne5 11.fe5 c5 12.c4 Nc6 13.cd5 ed5 14.Nd2 Qc3 15.dc5 Qe3 16.Kh1 Be6 (16...Ne5 17.Re1 Qf4 18.Nf3+=) 17.Nf3 Qc5 (17...Ne5?! 18.Re1 Nd7 19.Ba6 Qc5 20.Bb7=) 18.Qb3 Qe7 19.Bb5 Rc8 20.Nd4 Kd8 21.Rad1 Nd4 (worse is 21...Ne5 22.Rde1 Ng4 23.Qg3+=) 22.Rd4 f6 23.Rd5 Bd5 24.Qd5 Kc7 25.Qd6?? (25.Ba6 Qb4 26.Bb7–+) 25...Qd6–+ 26.ed6 Kd6 27.Rd1 Kc5 (27...Kc5 28.Bd3 Rfd8–+) 0–1. arvek – David Lonsdale, ChessWorld.net, 2013.

4.Nf3 Nf6 5.Nc3 c6 6.a4 Qa5 7.Ba3 e6 8.Bf8 Rf8 9.Ne5 Nbd7 10.Rb1 Ne5 11.fe5 Ne4 12.Ne4 de4 13.Qh5 Qa4 14.Be2 Qc2 15.0–0? (better is 15.Rb4–+) 15...Qd2 16.Rfd1 (16.Rf2 Qe3 17.Qh7 g6–+) 16...Qe3 17.Kh1 Qf4 18.Rd6 g6 19.Qh3 Qe5 20.Rbd1 Ke7 21.Qh4 g5 22.Qh6 a5 23.R6d4 a4 24.Bc4 (24.Qh3 a3 25.Qc3 f5–+) 24...b5 25.Ba2 e3 26.Rg4 (26.Rb4 e2 27.Re1 Qf6 28.Qf6 Kf6 29.Re2 Rd8–+) 26...e2 27.Re1 Rd8 28.Rb4 Rd1 (28...Rd1 29.Rb1 Re1 30.Re1 Qf4–+) 0–1. Emohisi – Moe, playchess.de, 2002. (=1.f4 d5 2.b4 Qd6 3.e3 Qb4)

4.Nf3 Nf6 5.Nc3 e6 6.Rb1 Qa5 (better is 6...Qd6!?+=) 7.Rb5= Qa6 8.Rd5 Nd5 9.Ba6 Nc3 10.dc3 Na6 11.Qd4 Bd7 12.Ne5 0–0–0?? (better is 12...Nb8+/–) 13.Nf7+– (13.Qa7?! Be8 14.Ba3 f6 15.Qa8 Nb8+–; 13.Nd7?! c5 14.Nb6 Kc7+/–) 13...Bc5 14.Qe4 Rhe8 (14...g6 15.h4 Bc6 16.Qe6 Bd7 17.Qc4+– (17.Nd8?! Be6 18.Ne6 Be3 19.Be3 Re8+/–)) 15.Qh7 Bf8 16.e4 Bc6 17.Nd8 Rd8 18.Be3 1–0. b4_player – manne, casual, 2013.

4.Nf3 Nf6 5.Be2 c5 6.0–0 e6 7.Nc3 Be7 8.Ne5 0–0 9.g4 Nc6 10.g5 Ne8 11.Ng4 f5 12.Nf2 d4 13.a3 Qa5 14.Na2 Nd6 15.d3 de3 16.Be3 Qa3 17.Qd2 Nd4 18.Bd4 cd4 19.Rfb1 Qc5 20.Bf3 Nb5 21.Rb3 a6 22.Kg2 Qc7 23.Nh3 Bd7 24.c4 dc3! 25.Nc3 Rfe8 26.d4? (better is 26.Rc1 Rac8 27.Ne2–+) 26...Qc4 27.Rab1 Nd4 28.Rb7 Bc6 29.Bc6 Qc6 (29...Nc6?! 30.Rc7 Bb4 31.Qd7 Bc3 32.Qc6 Qa2 33.Nf2–+) 30.Kf1 Qh1 (30...Qh1 31.Ng1 Qg1 32.Kg1 Nf3 33.Kf2 Nd2–+) 0–1. Lentschu,Dieter – Legahn,Dirk, Germany Cht corr, 1991. (=1.f4 d5 2.b4 Qd6 3.e3 Qb4)

4.Nf3 Bg4 5.Nc3 Qd6 6.Nb5 Qd7 7.Rb1 c6 8.Nbd4 e6 9.Be2 Nf6 10.0–0 Bd6 11.Ne5 Be2 12.Nd7 Bd1 13.Nf6 gf6 14.Rd1 b6 15.Nf3 Nd7 16.Rf1 c5 17.Bb2 Ke7 18.g3 e5 19.fe5 fe5 20.Rf2 f6 21.Nh4 Ke6 22.Nf5 Bc7 23.d3 Rag8 24.Rbf1 h5 25.Nh4 Rg4 26.a3 Rhg8 27.Kh1 Bd6 28.Rf5 R8g5 29.R5f2 Be7 30.Nf5 Bd8 31.h3 Ra4 32.Kh2 b5 33.Nh4 b4 34.ab4 Rb4 35.Bc3 Ra4 36.Ra1 Ra1 37.Ba1 d4 38.e4 Be7 39.Rf1 Nb6 40.Nf3 Rg7 41.c3 Na4 42.cd4 cd4 43.Rc1 Nc5 44.Ne1 Bd6 45.Rb1 Rb7 46.Rb7 Nb7 47.Nc2 Nc5 48.Ne1 f5 49.ef5 Kf5 50.Kg2 Nb3 51.Bb2 a5 52.Kf2 a4 53.Nc2 Bc5 54.Kf3 Nd2 55.Ke2 Nb3 56.Kf3 Nd2 ½–½. ziggyblitz (2420) – wstanevans (2330), net–chess.com, 2014. (=1.f4 d5 2.b4 Qd6 3.e3 Qb4)

2.f4 e5

3.fe5 Bf5 4.c3 d4? (better is 4...Nh6=) 5.Nf3+/– dc3 6.Nc3 a6? (better is 6...Bb4 7.Qb3 Nc6+/–) 7.a3+– h6 (7...Nc6 8.d4 Bg4 9.e3+–) 8.d4 c6 (8...Ne7 9.e4 Bg4 10.Bc4+–) 9.e4 Bh7 (9...Bg4 10.Bc4 b5 11.Ba2+–) 10.Bc4 a5 11.b5 Nd7 12.bc6 bc6 13.0–0 Nb6 (13...Bg6+–) 14.Bf7! Ke7 (14...Kf7 15.Ng5 Combination) 15.Ng5! Nf6 (15...hg5 16.Bg5 Decoy) 16.Ne6 Qc8 17.ef6 gf6 18.Qh5 Bg8 19.Qg6 (19.Qg6 Bf7 20.Qf6 Kd7 21.Qf7 Be7 22.Qf5+–) 1–0. pierred (2755) – mpenga (2370), net–chess.com, 2014. (=1.f4 d5 2.b4 e5)

3.fe5 Bb4

4.Nf3 Nc6 5.c3 Ba5 6.e3 +=.

4.Nf3 Ne7 5.c3 Ba5 6.d4 Nf5 7.Ba3 Nc6 8.Qd3 Nce7 (better is 8...Nfe7+=) 9.Nbd2+= 0–0 10.Nb3 Bb6 11.g3 Re8 12.Bg2 Ng6 13.Bc5 Bc5 14.Nc5 b6 15.Nb3 Nfe7 16.0–0 a5 17.Rac1 Bf5 18.Qd1 a4 19.Nbd2 b5 (19...h6 20.Re1=) 20.Ne1 (20.Ng5 Bg4 21.h3 Be6+/–) 20...Qd7 21.Nd3 Bh3 22.Nc5 Qg4 23.e3 Nf5? (23...Qd1 24.Rcd1 Bg2 25.Kg2+=) 24.Bh3 (better is 24.Qg4!? Bg4 25.Bd5+–) 24...Qh3+/– 25.Qf3 Nfe7? (better is 25...Nh6 26.Rce1 c6+/–) 26.Qf7+– Kh8 27.Ne6 Rg8 (27...Qh6 28.Rce1 Nc6 29.Nc7+–) 28.Nf4 (better is 28.Rb1!? Qg4+–) 28...Nf4 29.Qf4 (worse is 29.gf4 Qe3 30.Kh1 Rae8–/+) 29...Ng6 30.Qf2 Raf8 31.Qg2 Qh5 32.Rf8 Rf8 33.Rf1 (33.Qd5?! Qe2 34.Qg2 Qe3 35.Kh1 c6+=) 33...Rd8 34.Qf3 Qg5 (34...Qf3 35.Nf3 Kg8 36.Kf2+–) 35.Rf2 h5 36.Nf1 c6 37.Qf5 Qg4 38.h3 Qf5 39.Rf5 h4 40.gh4 Kg8 41.h5 Ne7 42.Rf2 Nc8 (42...c5 43.Kg2+–) 43.Kg2 Nb6 44.Nd2 a3 45.Kg3 Na4 46.Nb1 Rb8 47.Rc2 (47.Na3?! Nc3 48.Rb2 Ra8+/–) 47...Nb6 48.Kg4 (better is 48.Na3 Ra8 49.Nb1+–) 48...Nc4+/– 49.Re2 (49.Kg5!?+/–) 49...b4+= 50.cb4 Rb4 51.Nc3 Rb2 (51...Ne5!? 52.Kg5 Nd7+=) 52.Kf4 Kf7 53.Rb2 ab2 54.Nb1 Ke6 55.a4 Na5 56.Kg5 (better is 56.Kf3+–) 56...Nc4?? (better is 56...Kf7+/–) 57.Kg6+– Ne3 (57...c5 58.dc5 d4 (58...Ne3?? 59.a5+–) 59.ed4 Ne3+–) 58.a5 Kd7 59.Kg7 Nf5 60.Kf6 Ne7 61.h6 (61.h6 Ng8 62.Kg5 Nh6 63.Kh6+–) 1–0. ziggyblitz (2420) – snowcert (2460), net–chess.com, 2014. (=1.f4 d5 2.b4 e5 3.fe5 Bb4)

4.Nf3 Ne7 5.c3 Bc5 6.e3 +=.

4.Nf3 f6 5.Bb2 (5.a3 Ba5 6.e3 fe5 7.Bb5 Nd7 8.Bd7 Bd7+=) 5...fe5+= 6.Be5 (6.c4 Ne7 7.cd5 Qd5 8.Be5 0–0+=) 6...Nf6–/+ 7.e3 (7.a3 Be7–/+) 7...0–0 (7...Nc6 8.a3 Ne5 9.Ne5–+) 8.Be2 (8.a3 Bc5 9.Nc3 Nc6 10.Bf6 Rf6+=) 8...Ng4 9.Bc3 (9.c3 Bd6 (9...Ne5?! 10.cb4 Nbc6 11.0–0+=) 10.Bd6 Qd6–/+ (10...cd6?! 11.0–0=)) 9...Bd6–+ 10.0–0 Rf3 11.Bf3 (11.Rf3!? Bh2 12.Kf1 Qh4–+) 11...Bh2–+ 12.Kh1 Bg3 13.Kg1 (13.Bg4?? Qh4 14.Bh3 Bh3–+) 13...h5 14.Qe2? (14.Na3 Be6 15.Bf6 Nf6 16.Bh5–+) 14...Be6 15.Bg4 (15.Bd5 Bd5 (worse is 15...Qd5 16.Qf3 Bh2 17.Kh1–+) 16.Qb5 Bh2 17.Kh1 c6 18.Qb7 Nd7 19.Qa8 Qa8–+) 15...hg4 16.Qb5 Nd7 17.Qb7 (17.Rf4 Qh4 18.Na3 g5–+) 17...Kh7 (better is 17...Rb8 18.Bf6 (18.Qa7 Qh4 19.Qb8 Nb8 20.Rf8 Kf8 21.Bb4 Kg8 22.Bc5 Qh2 23.Kf1 Qh1 24.Ke2 Bf5 25.e4 Qg2 26.Kd3 Be5 27.Nc3 Be4 28.Ne4 Qe4) 18...Nf6 19.Qa6–+) 18.Rf4 (18.Bf6 Nf6 19.Nc3–+) 18…Qh4 (18...Qh4 19.Qb5 Qh2 20.Kf1 Qh1 21.Ke2 Qe1 22.Kd3 Bf4–+) 0–1. Goncalves,Claudio Javier (1975) – Glaser,Karel (2165), Mostert/Open/S7 ICCF, 2006. (=1.f4 d5 2.b4 e5)

4.Nf3 Bg4 5.c3 (5.Bb2 Nh6+=) 5...Be7 6.d4 (6.Qb3 b6+=) 6...Nd7 (6...c5 7.e3+=) 7.Nbd2 (7.Qd3 c5=) 7...Bf5 8.c4 c6 (8...Nb6 9.c5 Nd7 10.Qb3=) 9.cd5 cd5 10.Qb3 Qa5 11.Kf2 Rc8 (11...Rc8 12.Qb7 Rb8=; 11...Rb8 12.e3+=). Berlow – Cook, corr, 1964.

3.fe5 Nc6

4.a3 Ne5 5.Nf3 Nc6 6.Nc3 Qf6 (better is 6...d4 7.Nb1 Nf6+=) 7.Nd5+/– Qa1 8.Nc7 Kd8 9.Na8 Nf6 10.d4 Be6 (10...Bf5 11.b5 Ne7 12.c4+/–) 11.Nc7! Kc7?? (better is 11...Ba2 12.e4! Nb4+/–) 12.Bf4+– (12.Bf4 Bd6 13.Bd6 Kd6 14.Qa1+–) 1–0. b4_player – manne, casual, 2013.

4.a3 Ne5–/+ 5.Nf3 Nf3 6.ef3 Qh4 (6...Bd6 7.Bb2 Nf6 8.Qe2 Kd7 9.Qd3+=) 7.g3= Qe7 8.Kf2 Be6 9.Nc3 (9.Bb2 Nf6=) 9...0–0–0 10.Bb2 c5 (10...h5 11.Nb5 h4 12.g4+= (worse is 12.Na7 Kb8–/+)) 11.Na4 (11.bc5 Qc5 12.Kg2 h5=) 11...cb4 (11...c4 12.Bd4 b6 13.Bg2=) 12.ab4 Nf6 (better is 12...Qb4!? 13.Bc3 Qe7=) 13.Bd4 (13.Nc5 Qc7 14.Bd4 b6 15.Ne6 fe6+/–) 13...Qb4 (13...b6!?+/–) 14.c3+– Qd6 15.Nc5 Kb8?? (better is 15...b6 16.Ne6 Qe6 17.Ra7 Kb8+–) 16.Nb7! (16.Ne6?! fe6 17.Ra7 e5+–) 16...Kb7 17.Ra7 Kb8 18.Qb3 Kc8 19.Qb7 1–0. rancho – wojt, internet, 2010.

4.Nf3 Bb4 5.e3 a6 +=.

2.f4 e6

3.a3 f5 4.Nf3 b5 (4...Nf6 5.e3=) 5.e3 a6 6.Bb2 Nf6 7.Be2 g6 (7...Bd6 8.0–0=) 8.0–0 Bg7 9.a4 ba4 10.c4 Bb7 (10...Bd7 11.Ne5+=) 11.Qa4+/– Qd7 12.cd5 Qa4 13.Ra4 ed5 14.Rc1 c6 15.Bd4 0–0 16.Nc3 Nbd7 17.Rca1 Nb8 18.g3 Nfd7 19.Ra5 Bd4 20.Nd4 Nb6 21.Kf2 Nc4 (21...Re8!?+/–) 22.Bc4+– dc4 23.Rc1 Re8 24.Na4 Nd7 25.Nc5 Nc5 26.bc5 (26.Rc5 Rad8+–) 26...Re7 27.Rc4 Rd8 28.Rb4 Red7 29.Ra2 Ra8 30.Nf3 Rd5?? (30...Kg7+–) 31.Rb7 (31.Rb7 Rc5 32.Ng5+–) 1–0. aspasio (2820) – cervejarj (2105), net–chess.com, 2013. (=1.f4 d5 2.b4 e6)

3.a3 Qf6 4.d4 +=.

3.a3+= Nf6 4.Nf3 g6 (4...c5!?+=) 5.Bb2= Bg7 (5...a5 6.b5=) 6.g3 (6.e3 Bd7=) 6...0–0 7.Bg2 Ne4 (7...a5 8.0–0=) 8.Bg7 Kg7 9.0–0 Qf6 (9...Nd7 10.d4=) 10.c3 (10.Ne5 Nd7 11.d4 a5 12.Be4 de4+/–) 10...Nc6 (10...a5 11.b5=) 11.Ne1 (11.d4 a5 12.Ne5 Ne5 13.fe5 Qg5 14.Be4 Qe3 15.Kg2 Qe4 16.Rf3 Qg4+=) 11...Nd6 (11...a5 12.ba5 Ra5 13.e3+=) 12.Qc2 (12.d3 Rd8=) 12...a5 (12...Nd4 13.Qa2 N4f5=) 13.e4 (13.Ra2!?=) 13...de4–/+ 14.d4? (14.d3 ed3 15.Nd3 ab4 16.Bc6 bc6 17.Nb4 c5–/+) 14...ed3 (better is 14...Nd4 15.Qf2 N4b5–+) 15.Nd3–/+ ab4 16.Bc6 bc6 17.Nb4 c5 (17...Bb7 18.Nd3–/+) 18.Nd3 (18.Nc6 Ba6 19.Re1 Bb7+=) 18...c4 (18...Ba6 19.Rd1 Nf5 20.Qf2–/+) 19.Ne5 Qf5 (19...Rd8 20.g4–/+) 20.Qe2 Exerts pressure on the isolated pawn (20.Qf5 gf5 21.a4 f6–/+) 20...Ba6 (20...f6 21.g4 (21.Nc4? Qc5 22.Ne3 Ba6–+) 21...Qe4 22.Qe4 Ne4 23.Nc4+=) 21.Nd2 The pressure on the isolated pawn grows (21.g4 Qe4 22.Qe4 Ne4+=) 21...Qh5 (better is 21...Rfd8!?+=) 22.Qh5+= gh5 (22...gh5 23.Kf2 Rfe8+=). brutus1 – kloosterveen (1630), internet, 2007.

3.a3 g6 4.Bb2 Nf6 5.Nf3 Bg7 6.e3 0–0 7.Be2 b6 8.0–0 Bb7 9.Ne5 Nfd7 10.d4 Ne5 11.fe5 f5 (11...f6!? 12.ef6 Rf6=) 12.c4+= a6 13.cd5 Bd5 14.Nc3 Bb7 15.Bc4 Bd5 16.Nd5 ed5 17.Qf3 c6 18.Bb3 Qe8? (better is 18...Kh8+/–) 19.Bd5!+– Kh8 (19...cd5 20.Qd5 Double attack) 20.Ba2 Ra7 21.Bc3 Re7 22.Rac1 Bh6 23.Bb3 Kg7 24.Qh3 Rc7?? (24...Nd7+–) 25.e6 (25.e6 Nd7 26.d5 (26.ed7?! Qe3 27.Qe3 Be3 28.Kh1 Bc1 29.Rc1 h6+–) 26...Nf6 27.d6+–) 1–0. pierred – tomy (2480), net–chess.com, 2016.

3.d3 Bb4–/+ 4.c3 Ba5 5.g3 d4 6.Ba3 dc3 7.Nf3?? c2 8.Qd2 Bd2 9.Kd2 cb1Q 10.Rb1 Qd5 11.d4 Qa5 12.Rb4 Qa3 13.Rb3 Qa2 14.Kc3 a5 15.Nd2 Nf6 16.Nb1 Ra6 17.Ra3 Qb1 18.Bg2 Qb4 19.Kc2 Qa3 20.Bf3 c5 21.Rb1 cd4 22.Rb3 Qa4 23.g4 0–0 24.g5 Nd5 25.f5 Rb6 26.Bd5 ed5 27.f6 Bf5 28.e4 Qb3 (29.Kd2 Qc3 30.Ke2 Rb2 31.Kd1 Qd2#; 28...de3 29.Kd1 Bg4 30.Ke1 Qa1 31.Rb1 Rb1#) 0–1. tomeyhawk – bgoodier (1710), net–chess.com, 2004.

3.e3 Bb4 4.Nf3 –/+.

3.e3 Nf6 4.Nf3 (4.a3 a5+=) 4...Bb4–/+ 5.Qe2 (5.Bb2 Nbd7–/+) 5...Nc6 6.Bb2 Qe7 7.a3 Bc5 8.h3 (8.Qd3 0–0–/+) 8...Bd7 9.g4 0–0–0 10.Nc3 Ne4 11.Ne4 de4 12.Ng5 e5 (better is 12...f5 13.Qc4 Rdf8–+) 13.fe5?? (13.Ne4 ef4 14.Nc5 Qc5 15.Bg7+=) 13...Ne5 (better is 13...Qg5 14.Bg2–+) 14.Be5?? (better is 14.Ne4 f5 15.Nc5 Qc5 16.Bd4=) 14...Qe5–+ (14...Qg5?! 15.Qh2 Rde8 16.Bc7 Be3 17.Rd1–+) 15.d4 (15.Rb1 Qg5 16.Bg2 Qh4 17.Kd1 Bc6–+) 15...Qg5 (better is 15...ed3 16.cd3 Qa1 17.Qd1 Qa3–+) 16.dc5 Rhe8 (16...Qc5 17.Rd1–+) 17.Qf2 (17.Rb1 Qc5 18.Kf2 Qa3–+) 17...Be6 (17...Qc5!? 18.Rb1 Bg4 19.Bg2–+) 18.Bb5 (18.Bg2 h5 19.Rb1 Qc5–+) 18...Re7 (18...Qc5 19.Rb1 Qc3 20.Kf1–+) 19.0–0 h5 20.Qg2 (20.Qf4 Qc5 21.Rab1–+) 20...Qe3 21.Kh1 (21.Rf2 hg4 22.hg4 Qc5–+) 21...f6 (better is 21...hg4!? 22.Rfe1 Qc5 23.Bf1–+) 22.Rfe1 (22.c6 hg4 23.cb7 Kb7–+) 22...Qf4 (better is 22...Qc5 23.Be2–+) 23.c6 b6 24.Ba6 Kb8 25.Re4 Qg5 26.c4 (26.Rae1 Bd5 27.Re7 Bg2 28.Kg2 hg4 29.hg4 Qg4 30.Kf2 Qf4 31.Kg2 Qg5 32.Kf3 Qd5 33.Kf2 Qc5 34.R1e3 Qc2 35.Be2 Qc6 36.Rg7 f5–+) 26...hg4 27.hg4 Rh8 28.Kg1 Rh4 (better is 28...Qc5 29.Kf1 f5–+ (29...Qc6?! 30.Rae1–+)) 29.Rae1? (29.Rd1 Qc5 30.Qf2 Qf2 31.Kf2 Rh2 32.Kg3+/–) 29...Rg4?? (29...Qc5 30.R1e3 Rh8–+ (30...Qc6? 31.Re6 Qg2 32.Kg2 Re6 33.Re6+–)) 30.Rg4= Bg4 (30...Qc5 31.Kf1 A) 31...Bg4? 32.Re7 (worse is 32.Qg4 Re1 33.Ke1 Qa5 34.Kf2 Qa6 35.Qg7 f5–/+) 32...Qe7 33.Qg4+–; B) 31...Qf5 32.Kg1 Qc5 33.Kf1 B1) 33...Bg4? 34.Re7 (worse is 34.Qg4 Re1 35.Ke1 Qa5 36.Kf2 Qa6 37.Qg7 f5–/+) 34...Qe7 35.Qg4+–; B2) 33...Qf5 34.Kg1 Qc5=) 31.Re7+/– Qc5 32.Kh2 (32.Kf1!? Qe7 33.Qg4+–) 32...Qe7 33.Qg4 Qf8 (33...Qe5 34.Kh3 f5 35.Qg5 Qc3 36.Qg3+=) 34.a4 (34.Kg2 Qe8+/–) 34...f5 35.Qf4 g6 36.Qf3 g5 37.Qh5 Qd6 38.Kg2 (better is 38.Kh1 Qd8 39.Qe2+/–) 38...Qc6?? (better is 38...Qd2 39.Kf1 Qf4 40.Ke2 Qe5 41.Kd3 Qe4 42.Kd2 Qd4 43.Kc2 Qe4 44.Kc1 Qe3 45.Kb2 Qe5 46.Ka2 g4=) 39.Qf3 (39.Kf1 Qc4 40.Bc4 Kc8 41.Qe8 Kb7 42.Bd5 c6 43.Qc6 Ka6 44.Qb5) 39...Qf3–/+ 40.Kf3 c6 (40...c5 41.Kf2–/+) 41.Ke3 (better is 41.c5 b5 42.ab5+=) 41...Kc7–/+ 42.Kd4 g4 43.Ke3 Kd6 44.Kf4 Kc5 45.Bc8 (better is 45.Bb7!?–+) 45...Kc4 46.Bf5 Kb4 47.Bc2 (47.Bd7 Ka4 48.Bc6 Kb4 49.Kg4 a5–+) 47...a5 48.Kg4 c5?? (better is 48...b5 49.ab5 cb5–+) 49.Kf4 (better is 49.Kf3–/+) 49...c4?? (better is 49...b5 50.ab5 Kb5–/+) 50.Ke4?? (50.Ke3 Kc5=) 50...b5 (better is 50...Kc3 51.Bd1 Kd2–+) 51.ab5 (51.Kd4 ba4 52.Ba4 c3=) 51...Kb5 52.Kd4 a4 53.Ba4 Kb4 54.Bc2 c3 55.Kd3 Ka3 56.Kc3 ½–½. john1007 – pieeater, ChessWorld.net, 2012.

3.Nf3 Bb4–/+ 4.Bb2 Nf6 5.e3 Nc6 6.Bd3 Qe7 7.0–0 Bd7 8.a3 Bd6 9.Nc3 0–0–0 10.Ng5 h6 11.Nf3 g6 12.Nb5 Kb8 (better is 12...Bc5!?+=) 13.Nd6= cd6 14.g4 (14.Rb1!?+=) 14...Rhg8 (worse is 14...Ng4 15.Bh8 Rh8 16.Rb1=) 15.Bf6 Qf6 16.Rb1 g5 (16...e5 17.g5 Qe6 18.gh6+=) 17.fg5= hg5 18.Nd4 Nd4?? (better is 18...Qe7+=) 19.Rf6+– Nc6 20.Rf7 Ne5 21.Rf1 Rh8 22.Ba6 b6 23.d4 Ng6 (23...Nc4 24.Bc4 dc4 25.Rf7+–) 24.a4! Rh4 (24...Ba4 25.Rf6 Combination) 25.a5 e5 (25...Rdh8 26.Rf2 Kc7 27.Bd3+–) 26.de5 (better is 26.ab6 Rg4 27.Kh1+–) 26...Rdh8 (26...Rg4 27.Kh1 Ne5 28.ab6+–) 27.ed6 (better is 27.Qd5 Bc8 28.Bc8 Kc8+–) 27...Rh2 (27...Rg4 28.Kh1 Ne5 29.ab6+–) 28.ab6 Rh1 29.Kf2 R8h2 (29...R1h2 30.Ke1 Bc6+–) 30.Kg3 (better is 30.Ke1 Rf1 31.Bf1+–) 30...Rf1?? (better is 30...Rh3 31.Kg2 R3h2 32.Kg3 Rh3 33.Kg2 R3h2 34.Kg3=) 31.Qf1 (31.ba7 Ka7 32.Qd4 Ka8 33.Qd5 Bc6 34.Qc6 Ka7 35.Qb7) 31...Rc2 32.ba7 Ka7 33.Rb7 Ka8 34.Rd7 (34.Qb1 Rb2 35.Qb2 Bb5 36.Qd4 Ba6 37.Qa7) 34...Ne5 (34...Rc3 35.Bd3 Kb8 36.Qb1 Rb3 37.Qb3 Kc8 38.Qb7) 35.Qf8 Rc8 36.Qc8 1–0. john1007 – pieeater, ChessWorld.net, 2012.

3.h4? Bb4 (3...Qf6 4.d4 Bb4 5.c3–+) 4.Nf3 Nf6 5.g4 (better is 5.e3!?–+) 5...Ng4 6.Ng5?? (6.Bb2 Qd6 7.Bg7 Qf4–+) 6...0–0 (better is 6...Ne3!–+) 7.c3 Ba5 (7...Be7 8.e4 f5 9.e5–+) 8.h5 (8.e4 h5–+) 8...Nc6 (8...h6 9.Nf3–+) 9.Na3?! (9.Qc2 Nf6 10.h6–+) 9...b5 (better is 9...h6 10.Nf3 Qf6–+) 10.e3 (better is 10.e4 f5 11.Bb5–/+) 10...Rb8?? (better is 10...Ne3 11.de3 Bc3 12.Bd2 Ba1–+) 11.Bh3?? (better is 11.Qg4 e5 12.Qg2+/–) 11...Nh6 (better is 11...Ne3 12.de3 Bc3 13.Bd2 Ba1 14.Qa1 h6–+) 12.d3? (12.Qc2 Nf5–+) 12...b4 (better is 12...Bc3 13.Bd2 Ba1 14.Qa1–+) 13.cb4 Bb4 14.Bd2 (14.Ke2–+) 14...Ba3 15.Qc2 (15.Rb1 Rb1 16.Qb1 d4–+) 15...Ne7 (15...Nb4 16.Qb3 Qe7 17.Kd1–+) 16.e4 (16.Qa4 Qd6–+) 16...Rb2 17.Bc3 (17.Qc3 Qd6 18.Nf3–+) 17...Rc2 18.ed5 Rc3 (18...Qd5 19.0–0 Bc5 20.d4 Bd4 21.Bd4 Qd4 22.Kh1 Qd2 23.Nf3 Bb7 24.Kg1 Bf3 25.Rf3 Qh2 26.Kf1 Qh1) 19.Be6 Be6 20.Nh7 Bb4 (better is 20...Kh7 21.Rh2 Qd5 22.Rd1–+) 21.a3 Bc5 (21...Ra3 22.Ke2 Bg4 23.Kf2 Bc5 24.Ke1 Ra1 25.Kd2 Ra2 26.Kc3 Bd4 27.Kd4 Qd5 28.Kc3 Qc5 29.Kb3 Be6) 22.Nf8 Kf8 (22...Qd5 23.Nh7 Bf2 24.Kf1 Qh1 25.Kf2 Ng4 26.Ke2 Rc2) 23.a4 Rd3 (23...Bf2 24.Kf1 Qd5 25.Rh2 Qd3 26.Kf2 Ng4 27.Kg1 Qe3 28.Kh1 Bd5 29.Rg2 Rc1 30.Rc1 Qc1) 24.Rh2 Bb4 (24...Qd5 25.Rb1 Qe4 26.Kf1 Rf3 27.Rf2 Rf2 28.Kg1 Qb1) 25.Rd2 (25.Kf1 Qd5 26.Re1 Qf3 27.Rf2 Qh1 28.Ke2 Rd2 29.Ke3 Nhf5) 25...Qd5 26.Rc1 (26.0–0–0 Ba3 27.Kb1 Qb3 28.Ka1 Qd1 29.Rd1 Rd1) 26...Bd2 27.Ke2 (27.Kf2 Bh3 28.Rc7 Qg2) 27...Bc1 (27...Qf3) 28.f5 (28.Kf2 Qf3 29.Kg1 Be3 30.Kh2 Ng4) 28...Rd2 29.Ke3 Qd3 (29...Rb2) 30.Kf4 Re2 0–1. NightRay – GeoDragon, VOGChess, 2000.

3.a3 c5

4.c3 c4 5.Nf3 Bd6 6.g3 f5 (6...a5 7.ba5 Nf6 8.d3+=) 7.Bg2 b5 (7...a5 8.ba5 Nf6 9.d3+=) 8.0–0 (8.a4 ba4 9.d3 cd3 10.ed3 Bd7+=) 8...Nd7 (8...a5!?+=) 9.a4 Ba6 (9...ba4 10.Qa4 Ne7 11.Ng5 Qb6 12.Kh1+=) 10.ab5 (10.Nd4 Qf6+/–) 10...Bb5 11.Na3 a6 (11...Qb6 12.Kh1 Ba6 13.Nc2+/–) 12.d4 (better is 12.Nd4!? Nf8 13.Nab5 ab5 14.Ra8 Qa8 15.Nb5+/–) 12...Nb6= 13.Nc2 Nf6 14.Ne5 Nfd7 (14...Ne4 15.Bd2=) 15.Bd2 (15.e4 de4 16.Qh5 g6 17.Ng6 Nf6+=) 15...Ne5 16.de5 Bc7 17.Nd4 Na4? (better is 17...Qd7+=) 18.Ne6+– Qe7? (better is 18...Bb6 19.e3 Qd7 20.Ng7 Qg7 21.Ra4 h5+–) 19.Bd5 (19.Ra4?! Qe6 20.Ra3 Bb6 21.e3 0–0+/–) 19...Rc8 (19...Bb6 20.e3 Ra7 21.Nd4+–) 20.Rc1 (better is 20.Ra4 Qd7 21.Ra2 (21.Nc7?! Rc7 22.Ra5 Qd5+–) 21...Qd5 22.Ng7 Kf8 23.Nf5+–) 20...Nb6 21.Nc7 Rc7 22.e4 fe4 23.Be4 0–0 24.Qh5 g6 25.Bg6! hg6 26.Qg6 Qg7 27.Qb6 Rc6 28.Qd4 Re6 29.Qd5 Qd7 30.Qd7 Bd7 31.Rfd1 Ba4 32.Re1 Rd8 33.Be3 Rd3 34.Bd4 Rh6 35.Re2 Rf3 36.Re3 Re3 37.Be3 Rh7 38.Bd4 Kf7 39.Re1 Bd7 40.h4 Bg4 41.Kf2 Ke6 42.Ke3 Kd5 43.Ra1 Bc8 44.Ra5 Ke6 45.Rc5 Kf5 46.Rc8 1–0. aleandy (2240) – cervejarj (2105), net–chess.com, 2013. (=1.f4 d5 2.b4 e6)

4.c3 Nf6 5.Nf3 Bd6 6.d3 a6 7.g3 Nc6 8.Bg2 b6 9.Bb2 Bb7 10.0–0 0–0 11.Nbd2 Ng4 12.Qc1 Rc8 13.Nb3 cb4 14.e3 bc3 15.Qc3 Nce5 16.Qc8 Qc8 17.fe5 Be7 18.Rac1 Qd7 19.Rfe1 a5 20.d4 Rc8 21.Rc8 Bc8 22.h3 Nh6 23.e4 de4 24.Re4 Bb7 25.Re3 Nf5 26.Rd3 Ng3 27.Kf2 Ne4 28.Ke3 Ng3 29.Kf2 Nf5 30.Nc1 Qb5 31.Rb3 Qc4 32.Bf1 Qc2 33.Be2 Bd8 34.Ne1 Qd2 35.Nf3 Qf4 0–1. wstanevans (2330) – cristero (2465), net–chess.com, 2014. (=1.f4 d5 2.b4 e6)

3.Bb2

3.Bb2 (--> 1.b4 d5 2.Bb2 e6 3.f4).

3.Bb2 Nd7 4.Nf3 Ngf6 5.a3 c5 6.e3 b6 7.b5 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.b5 b6 6.f4 Bb7 7.Nf3 Nbd7).

3.Bb2 Nf6 4.a3 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 d5 4.f4).

3.Bb2 Nf6 4.a3 Bd6 5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 Bd6 5.f4).

3.Bb2 Nf6 4.a3 Be7 5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 Be7 5.f4).

2.f4 Bf5

3.Bb2 h6 4.Nf3 e6 5.e3 a6 6.Be2 c6 7.Nd4 Be4 8.0–0 Nf6 9.Bh5 Be7 (better is 9...g6!? 10.Be2 Bb4+=) 10.Ne6+/– Qd7 11.f5 Rg8 12.Bf6 Bf6 13.Nc3 Bf5 14.Nc5 (worse is 14.Rf5 Qe6 15.Qf3 Nd7+=) 14...Qc8 15.N3a4 Ra7 16.Nb6 Qc7 17.Rf5 Qb6 18.Qg4 Qb4?? (better is 18...Kf8 19.Rf6! gf6+–) 19.Qb4 1–0. b4_player – jan, internet, 2013.

3.d3 e6 4.Bb2 (better is 4.c3!?–/+) 4...Bb4–+ 5.Nc3?? (better is 5.c3 Bc5 6.Nf3–+) 5...d4 6.a3 (6.Rb1 e5 (6...Bc3?! 7.Bc3 dc3 8.e4–+) 7.fe5 dc3–+) 6...Ba5 (6...dc3 7.Rb1 cb2 8.ab4–+) 7.Qd2 (7.Rb1 Nf6 (7...Bc3?! 8.Bc3 dc3 9.e4–+) 8.e4 dc3–+ (8...Bc3?! 9.Bc3 Bg4 10.Be2 Be2 11.Ne2 dc3 12.Rb7–+)) 7...Qf6 (7...dc3?! 8.Bc3 Qf6 9.Bf6 Bd2 10.Kd2 Nf6 11.Rb1–+; 7...Bc3?! 8.Bc3 dc3 9.Qc3–+) 8.e4 (8.Qd1–+) 8…dc3 (8...dc3 9.Bc3 Bc3–+) 0–1. aleandy (2240) – pierred (2755), net–chess.com, 2013. (=1.f4 d5 2.b4 Bf5)

3.e3 e5 4.d3 Bb4 5.c3–/+ Bd6 6.d4 ef4–+ 7.Nh3 Bh3 8.gh3 Qh4 9.Ke2 fe3 10.Be3 Qh5 11.Ke1 Qd1 12.Kd1 Nf6 13.c4 Nc6 14.c5 Be7 15.Nd2 0–0–0 16.h4 Ne4 17.Bg2 Nd2 18.Bd2? Nd4 19.Rc1 Bh4 20.Rf1 f6 21.Rf4–/+ c6 22.a4? Nb3–+ 23.Rh4 Nc1 24.Kc1 g5 25.Rh6 f5 26.Bg5=+ Rdf8 27.Bf3 f4 28.a5 Kc7 29.Rd6?? Rf5 30.Bf6 Rf8 31.Be7 Re8 32.Bh4? Re3 33.Bd8 Kb8–+ 34.Bg4 Rfe5?? 35.h4?? h5–+ 36.Bh5? Rh5 37.Bg5 Rc3 38.Kd2 Rc5 39.Bf4 Kc8 40.Bg5 Ra5 41.Rd8 Kc7 42.Kd3 Rg5! 43.hg5 Kd8 44.Ke3 Ra1 45.g6 Rg1 46.g7 a5 47.Kf2 Rg7 48.Ke3 b5 (48...b5 49.Kd4 c5 50.Kd5 a4 51.Kc5 a3 52.Kd5 a2 53.Ke5 a1Q 54.Kd5 Rg5 55.Ke4 Qe5 56.Kd3 Rg3 57.Kc2 Qe2 58.Kc1 Rg1#) 0–1. oddbwar – Bl48 (1645), internet, 2006.

3.e4 de4 4.Bb2 –/+.

3.e4 Be4 4.Nf3 e6 5.d3 Bf3 6.gf3 Bb4 7.c3 Bd6 8.Bh3 Nf6 9.Rg1 0–0 10.Be6 fe6 11.Rg7 Kg7 12.Ba3 Ba3 13.Qa4 Bb2 14.Nd2 Ba1 15.Nb3 Bc3 16.Kf1 Nh5 17.Nc1 Rf4 18.Ne2 Rf3 19.Kg2 Qf6 20.Nf4 Rf4 21.Qf4 Qf4 22.a4 Bd4 23.h4 Nc6 24.a5 Rf8 25.a6 Qf3 26.Kh2 Qg3 27.Kh1 Rf1# 0–1. idontknow – littlepawn, net–chess.com, 2006.

3.Nf3 Nf6 4.e3 e6 5.b5 Bd6 6.Bb2 0–0 7.Ne5 Ne4 8.g3 Be5 9.Be5 c5 10.Bg2 Nd7 11.Bb2 Ndf6 12.0–0 Qb6 13.a4 Rad8 14.d3 Nd6 15.Qe2 Nd7 16.Nd2 f6 17.c4 dc4 18.dc4 Bg6 19.a5 Qc7 20.e4 e5 21.f5 Bf7 22.g4 Nb8 23.Rf3 Rd7 24.Rh3 Rfd8 25.Bc3 a6 26.b6 Qc8 27.g5 Nc6 28.Bf1 Nd4 29.Qg4 fg5 30.Qg5 Ne8 31.Nf3 Nf3 32.Rf3 Qb8 33.f6 Qd6 34.Be5 Qc6 35.fg7 Qe4 36.Rh3 Rd2 37.Bc3 R2d6 38.Re1 Qc6 39.Qh4 Rg6 40.Kf2 Nf6 41.Rf3 Ng4 42.Kg3 Ne5 0–1. cristero (2465) – snowcert (2460), net–chess.com, 2014. (=1.f4 d5 2.b4 Bf5)

3.h3 e5 4.Nf3 e4 –/+.

3.h3 e6 4.g4?? Be4 5.Rh2 Bb4 6.a3 Bh1 (7.ab4 Qh4 8.Rf2 Nf6+–). funirabbit – willowsa, net–chess.com, 2002.

3.Bb2 Nc6

4.b5 Na5 5.a4 Nf6 6.Nf3 e6 7.e3 Bd6 8.Bd3 Bd3 9.cd3 c6 10.bc6 bc6 11.Be5 0–0 12.0–0 Rb8 13.Nc3 Be5 14.fe5 Nd7 15.Rb1 f6 16.Rb8 Qb8 17.ef6 Nf6 18.d4 Nb3 19.Ng5 Re8 20.Qc2 h6 21.Rf6! hg5 (21...gf6 22.Qh7 Mate attack) 22.Qg6 Nd2?? (better is 22...Rf8 23.Rf8 Kf8 24.Qe6 Qb6 25.Qf5 Kg8+/–) 23.Rf7 (23.Rf7 Nf3 24.gf3 Qh2 25.Kh2 Rb8 26.Qg7) 1–0. b4_player – juanorte, casual, 2013.

4.b5= Nb4 (better is 4...Na5!?=) 5.Na3+= d4 6.Nf3 d3 (better is 6...Qd6!?+=) 7.cd3+– Nd5?? (better is 7...Nf6+–) 8.e4 Nf4 (8...Nh6 9.ed5 Qd5 10.Rc1+–) 9.ef5 Nd3 10.Bd3 Qd3 11.Rc1 0–0–0 (11...Nf6 12.Qa4 Qe4 13.Qe4 Ne4 14.Rc7+–) 12.Be5 Qe4 (12...Rd5 13.Qa4 Nf6 14.Rc7 Kd8 15.b6 Qe4 16.Qe4 Ne4 17.ba7+–) 13.Kf2 Rd7 (13...c6 14.bc6 a5 15.cb7 Kd7 16.d4 Qc6 17.Rc6 Nf6 18.Qa4 Ne4 19.Ke3 Nd6 20.Rc8 Nb5 21.Qb5) 14.Rc4 Qf5 (14...Qd3 15.Qa4 e6 16.b6+–) 15.Qc1 Kd8 16.Rc7 Rc7 (16...Rd3 17.Re1 f6 18.Rb7 Ke8+–) 17.Qc7 Ke8 18.Qb8 1–0. b4_player – thqx, internet, 2014.

3.Bb2 Qd6

4.a3 Qf4 5.e3 (5.Nf3 Qg4–/+) 5...Qh4 6.g3 Qh6 (6...Qe4 7.Nf3 Qc2 8.Qc2 Bc2 9.Nc3–/+) 7.Bg2 e6 8.c4 Nd7 (8...Be4!? 9.Be4 de4–/+) 9.cd5+= ed5 10.Bd5 c6 11.Bb3 Bd6 12.Qf3 Ne7 13.h4? (13.Ne2!?+=) 13...0–0 (13...Qg6 14.h5 Qg3 15.Qg3 Bg3 16.Kd1–/+) 14.Nh3 Qg6 15.Nf4? (better is 15.Nf2!?–/+) 15...Bf4–+ 16.ef4 (16.gf4 Bb1 17.h5–/+) 16...Be4 17.Qe3 (17.h5 Bf3 18.hg6 Bh1 19.gf7 Kh8 20.Be6–+) 17...Bh1 18.Qe7 (18.Bd1–+) 18...Rfe8 19.Qe8 (19.Bf7 Qf7 20.Qe3 Re3 21.de3–+) 19...Re8 20.Kd1 Bf3 (20...Bf3 21.Kc1 Re1 22.Bd1 Rd1) 0–1. cervejarj (2105) – pierred (2755), net–chess.com, 2013. (=1.f4 d5 2.b4 Bf5)

4.Be5 Qd7 5.Nf3 Nc6 6.a3 Nh6 (6...a5 7.Nc3+=) 7.e3 e6 8.Be2 f6 9.Bb2 Be7 10.0–0 0–0 11.c4 dc4 12.Bc4 Bd3 13.Qb3 Bc4 14.Qc4 Nf5 15.Nc3 a6 16.Rac1 Nd6 17.Qe2 b5 18.d3 a5 19.Ne4 Nf5 20.ba5 Ra5 21.g4 Nh6 22.g5 fg5 23.Nfg5 Nf5 24.Nc5 Bc5 25.Rc5 Ra6 26.Rfc1 h6 27.Ne4 Rb6 28.Nf2 Rc8 (28...Kh7!?=) 29.Ng4+= h5 30.Ne5 (30.Ne5 Ne5 31.Be5+/–) 1–0. flyingtiger – pierred (2755), net–chess.com, 2013. (=1.f4 d5 2.b4 Bf5)

3.Bb2 e6

4.a3 c5 5.c3 (5.Nf3!?+=) 5...Nc6–+ 6.Nf3 Nf6 7.d3 Bd6 8.g3 Qb6 9.Bg2 cb4 10.ab4 Ng4 11.Rg1 0–0 12.d4 Ne3 13.Qd2 Nc2 (13...Nc2 14.Kf2 Na1 15.Ba1 a5–+) 0–1. wstanevans (2330) – pierred (2755), net–chess.com, 2014. (=1.f4 d5 2.b4 Bf5 3.Bb2 e6)

4.b5 Nf6 5.Nf3 Be7 6.e3 h6 7.Be2 0–0 8.0–0 c5 9.Ne5 Nbd7 10.d3 Ne5 11.Be5 a6 12.c4 dc4 13.dc4 Qd1 14.Rd1 Ne4 15.Bf3 Rfd8 16.Nc3 Nc3 17.Bc3 ab5 18.cb5 Ra3 19.Rd8 Bd8 20.Be5 b6 21.e4 Bg6 22.Rd1 Be7 23.Rd7 Bf8 24.Rd8 Ra2 25.Bd6 1–0. cristero (2465) – ziggyblitz (2420), net–chess.com, 2014. (=1.f4 d5 2.b4 Bf5 3.Bb2 e6)

4.e3 Nf6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.f4 e6).

4.Nf3 Bb4?? 5.Bg7+– Nc6 6.Bh8 Nf6 7.e3 Ne4 8.a3 Ba5 9.Bb5 Qd6 10.Be5 Qc5 11.Bc6 Qc6 12.0–0 0–0–0 13.d3 Nc5 14.Nd4 Qe8 15.Nf5 ef5 16.Qh5 Qg8 (16...Qe6 17.Qh7 Nd7 18.Qh3+–) 17.Qf5 Kb8 18.Bf6 d4 (18...Rd6+–) 19.ed4 1–0. b4_player – kalter, casual, 2013.

4.Nf3 Bb4?? 5.Bg7 Be4 6.Bh8 Bf3 7.ef3 Qh4 8.g3 Qe7 9.c3 Bd6 10.Qb3 b6 11.c4 dc4 12.Qc4 c6 13.Nc3 Qc7 14.Qd3 Nd7 15.Qh7 0–0–0 (15...Ne7 16.Ne4 Nd5 17.Qg8 Nf8 18.h4+–) 16.Qf7 Nc5 17.Qc7 Kc7 18.Ne4 Be7 19.Be5 Kb7 20.Bc4 Nd3 21.Ke2 Ne5 22.fe5 Nh6 23.Be6 Bb4 24.Rab1 Ba5 25.g4 Re8 (25...Kc7+–) 26.Nd6 (26.Nd6 Kc7 27.Ne8 Kd8 28.Nd6+–) 1–0. b4_player – hillary, internet, 2013.

4.Nf3 Bb4?? 5.Bg7 Ne7 6.Bh8 +–.

4.Nf3 Bb4?? 5.Bg7+– Nf6 6.Bh8 Nc6 7.a3 Bd6 8.Nc3 Bf4 9.e3 Bh6 10.Bb5 Qe7 (10...Nd7 11.0–0+–) 11.Nd4 Kd7 12.Bf6 Qf6 13.0–0 a6 (13...Qe5 14.Na4 Kd6 15.Bc6 bc6 16.Nf5 ef5 17.Kh1+–) 14.Nd5! (14.Nd5 Qg5 15.Nf5 ab5 16.Nh6 ed5 17.Rf7 Ke6 18.Qf3+–) 1–0. b4_player – manne, casual, 2013.

4.Nf3 Nf6

5.a3 c5 6.e3 a6 7.bc5 Bc5 8.Bd3 Nc6 9.Bf5= ef5 10.Nc3 d4 11.ed4 Nd4 12.Nd4 Bd4 13.Qe2 Kf8 14.0–0–0 g6 15.Rhe1 Qc7 16.h3 h5 17.Kb1 Rd8 (17...Qf4?? 18.Qe7 Kg7 19.Ne2+–) 18.g3 Kg7 19.Qf3 Rd7 20.Re2 Rc8 21.Rc1 Qd6 22.Ka1 0–1. marekt – klauno, gameknot.com, 2014.

5.a3 c5 6.e3 a6 7.bc5 Bc5 8.Bd3 Nc6 9.Bf5 ef5 10.Bf6 Qf6 11.d4 Be7 12.Qd3 Na5 13.0–0 Rc8 14.Nbd2 0–0 15.Nb3 Nc4 16.Nbd2 Nd6 17.Rac1 Qe6 18.c3 Rc7 19.Rc2 Rfc8 20.Rfc1 b5 21.Rb1 Ne4 22.Rb3 Bd6 23.g3 Qe7 24.Nb1 g6 25.Nfd2 Nf6 26.Nf3 Kg7 27.Ne5 Ne4 28.Nf3 Rc4 29.Kg2 h5 30.Kg1 Nf6 31.Ne5 h4 32.Qd1 (32.Nc4?? dc4 (32...Rc4?! 33.Nd2=) 33.Qe2 cb3–+) 32...Be5 33.fe5 Ne4 34.Qe1 hg3 35.hg3 Qg5 36.Rh2 Qg3 (36...Qg3 37.Qg3 Ng3–+; 36...Ng3 37.Rg2 f4 38.ef4 Qf4 39.Rg3 (39.Qg3?? Qc1 40.Kf2 Qc2 41.Kf1 Qb3–+) 39...Rd4 40.cd4=) 0–1. pierred (2865) – jessamine, net–chess.com, 2015.

5.a3 c5 6.e3 a6 7.bc5 Bc5 8.Bd3 Bd3!? 9.cd3 0–0 +=.

5.a3 c5 6.e3 cb4 7.Nd4 Be4 8.Bb5 Nfd7 (better is 8...Nbd7!? 9.0–0 a6+=) 9.0–0+= Be7 10.d3 Bg6 11.f5 Bf5 12.Nf5 ef5 13.Bg7 Bf6? (better is 13...Rg8 14.Bd4 Qc7 15.Rf5 Nc6 16.ab4 Nd4 17.ed4 0–0–0 18.Ra7 Kb8+/–) 14.Bh8+– Bh8 15.d4 Qf6 16.ab4 Nc6 17.Bc6 bc6 18.Qd3 Nb6 (18...Qe7 19.b5 f4 20.Re1+–) 19.Rf5 Qg6 20.Nd2 Bg7 21.e4 Bh6 22.Raf1 Bd2 23.Qd2 de4 (23...0–0–0+–) 24.Rg5 Qd6 25.Rg8 Ke7 (25...Kd7 26.Rf7 Qe7 27.Re7 Ke7 28.Qg5 Ke6 29.Qe5 Kd7 30.Rg7 Kd8 31.Qe6 Nd5 32.Qd7) 26.Qg5 Ke6 (26...f6 27.Qg7 Ke6 28.Rf6 Kd5 29.Qf7 Kd4 30.Rd6 Nd5 31.Qf6 Kc4 32.Rc6 Kb5 33.Rc5 Ka4 34.Qa6 Kb4 35.Rc4) 27.Qf5 (27.Qf5 Ke7 28.Qf7) 1–0. b4_player – hernan, casual, 2013.

5.a3 Bd6 6.e3 0–0 7.Nc3 Nc6 8.Be2 e5 9.fe5 Ne5 10.0–0 Nd3?? (better is 10...Nf3 11.Rf3 Qd7=) 11.cd3+– c5 (11...c6 12.Na4 Nd7 13.Qc2+–) 12.bc5 (12.Nb5!? Ne8+–) 12...Bc5 13.Ne5 Be6 14.d4 Bd6 15.Nb5 a6 16.Nd6 Qd6 17.Rb1 b5 18.Bc3 Ne4 (18...Rfc8 19.a4+–) 19.Bb4 (19.Bb4 Qb6 20.Bf8 Rf8 21.a4+–) 1–0. Fritz 11 – adrenaline101a, 2013.

5.a3 Bd6 6.e3 Nbd7 7.Be2 a5 8.b5 0–0 9.0–0 h6 10.Nc3 Bc5 11.Na4 Ba7 12.Nd4 Bg6 13.Bd3 Bd3 14.cd3 Nc5 15.Qc2 Na4 16.Qa4 Bb6 17.Ne2 Nd7 18.Rac1 Nc5 (18...Qh4 19.Nd4=) 19.Qd4+= f6 (better is 19...Qf6!?+=) 20.Rc5+– Bc5 21.Qc5 Qd6 22.Qd6 cd6 23.f5 e5 24.Nc3 Rfc8 25.Nd5 Rc5 26.Nc3 1–0. marekt – yury_fedorov, internet, 2013.

5.a3 Be7 6.e3 0–0 7.d4 a5 8.b5 b6 9.Nc3 c5 10.Bd3 Bd3 11.cd3 Nbd7 12.0–0 Rc8 13.Rc1 c4 14.dc4 Rc4 15.Qd3 Qc7? (better is 15...Rc7=) 16.Nd2+– Rc3 17.Rc3 Qb7 18.Rfc1 Bd6 19.Rc6 Ne8 20.a4 Nb8 21.R6c2 f5 (21...Qe7 22.Nf3+–) 22.Ba3 Nf6?? (22...Qe7 23.Bd6 Nd6+–) 23.Bd6 (23.Bd6 Re8 24.Rc7+–) 1–0. Fritz 11 – wijt, 2013.

5.a3 Be7 6.e3 0–0 7.Be2 Nbd7 8.0–0 c5 9.b5 c4 10.Ne5 a6 (10...Ne5!? 11.fe5 Nd7+=) 11.g4= Bg6 (11...Be4!? 12.d3 Bc5 13.de4 Ne5 14.Be5 Be3 15.Kg2 ab5+=) 12.f5+/– (worse is 12.Ng6 fg6 13.g5 Ne8=) 12...ef5 (12...ab5 13.fg6 fg6 14.Nd7 Qd7 15.d3+/–) 13.gf5 Ne5 14.Be5 Nd7 15.Bg3 (worse is 15.fg6 Ne5 16.gh7 Kh7+=) 15...ab5 16.Nc3 Ba3 (16...Bf6!? 17.fg6 fg6 18.d4 cd3 19.Qd3+–) 17.fg6 hg6 18.Nb5 Bc5 (18...Be7 19.Nc7 Ra1 20.Qa1+–) 19.Ra8 Qa8 20.Nc7 Qa5 21.Nd5 b5 22.Bf3 b4 (22...Re8 23.Bg2+–) 23.Be2 c3 (23...Qa2 24.Qb1 Ra8 25.Nb4 Qb1 26.Rb1+–) 24.d4 Ba7 (24...Bd6 25.Bd6 Qd5 26.Bf8 Nf8 27.Qe1+–) 25.Bc4 Rc8 (25...Bb8+–) 26.Ne7 (26.Ne7 Kh7 27.Nc8+–) 1–0. Fritz 11 – wijt, 2013.

5.a3 Be7 6.e3 c5 7.b5 b6 8.Be2 0–0 9.Nh4 Bg6 10.0–0 Nbd7 11.Ng6 fg6 12.Bf3 Rc8 13.Nc3 Kh8 14.d3 Ng8 (better is 14...Qc7!?+=) 15.Bg4+/– d4 16.Ne4 e5 17.fe5 Rf1 18.Qf1 Rc7 19.Qf4 de3 20.Qe3 Nh6 21.Bh3 Nf8 22.Rf1 Qe8 23.a4 Kg8 24.Qf4 Nd7 (24...Qf7 25.Nf6! gf6 26.ef6 Bf6 27.Bf6 Nf5+–) 25.e6 (25.e6 Nf6 26.Qc7+–) 1–0. b4_player – juanorte, casual, 2013.

5.a3 h6 6.e3 Nbd7 7.Nc3 Be7 8.Nd4 Bh7 9.Be2 0–0 10.0–0 c5 11.bc5 Nc5 12.Qe1 a6 13.a4 Rc8 14.d3 Qd7 15.a5 Rc7 16.Qf2 Rfc8 17.Qg3 Bd6 18.Qh3 (18.Bf3 Bg6=) 18...Qe7 19.Ra2 e5 (better is 19...Qe8!?=) 20.fe5+/– Qe5 21.Rf6 (21.Ndb5 Rd7 22.d4 Qh2 23.Qh2 Bh2 24.Kh2 Ne6+–) 21...Qf6 (21...gf6 22.Bg4 Re8 23.Qh6 Bf8+= (23...Qe3? 24.Qe3 Re3 25.Nd5 Re1 26.Kf2+–)) 22.Nd5+/– Qd8 23.Bf3 Qd7 24.Qd7 Nd7 25.Nc7 Rc7 26.Ba3 Be5 27.Rb2 Bg6 (27...Nc5 28.Rb6+–) 28.Rb7 1–0. Fritz 11 – weatherwax, 2013.

5.a3 h6 6.e3 Nbd7 7.Bd3 Bd3 8.cd3 c6 9.Nc3 a6 10.0–0 Be7 11.Na4 0–0 12.Bd4 Rc8 13.Ne5 Ne5 14.fe5 Nd7 15.Nc5 Nc5 16.bc5 Re8 17.Rb1 Qd7 18.Qg4 Rb8 19.Rf3 Bf8 20.Qf4 Re7 21.Rg3 Kh7 22.Rb6 g5 23.Qg4 Bg7 24.h4 gh4?? (24...Rg8 25.hg5 Bf8+–) 25.Qg7 1–0. b4_player – hernan, casual, 2013.

5.b5 Be7 6.e3 Nbd7 7.Be2 0–0 8.0–0 h6 9.d3 c5 10.Nbd2? (better is 10.Nc3+=) 10...Ng4–+ 11.e4 Ne3 12.Qc1 Nf1 13.Qf1 Bg6 14.Kh1 Qc7 0–1. ziggyblitz (2420) – pierred (2755), net–chess.com, 2014. (=1.f4 d5 2.b4 Bf5 3.Bb2 e6 4.Nf3 Nf6)

3.Bb2 f6

4.e3 Nc6 5.b5+= Nb8 (5...Nb4!? 6.d3 Qd6+/–) 6.Nf3+/– Qd6 7.c4 e5? (better is 7...Nd7+/–) 8.fe5+– fe5 9.Be5 Qe6 (9...Qe7 10.Nc3 (10.cd5?! Nf6+–) 10...Be4 11.Nd5 (11.Ne4?! de4 12.Bc3 ef3 13.Qf3 c6+/–) 11...Bd5 12.cd5+–) 10.cd5 Qd5 11.Nc3 Qc5 (11...Qe6 12.Bc7 Nf6 13.Qa4+–) 12.Bd4 Qb4 (12...Qd6 13.Nh4 Bc8 14.Bc4+–) 13.Nd5 Qd6 14.Bc4 c6 (14...Bg4 15.Qa4 Bf3 16.b6 Qd7 17.Nc7 Kd8 18.Qb3+–) 15.Be5 Qc5 (15...Qd5 16.Bd5 cd5 17.Qb3+–) 16.Nc7 Kd8 17.Rc1 Bd6 (17...Nd7 18.Bg8 Qe7 19.Bg3+–) 18.Bg8 Qb5 (18...Qb4 19.Rc4 Qc4 20.Bc4 Bc7 21.Bg7 Re8+–) 19.Nb5 Be5 20.Ne5 Rg8 21.Qh5 cb5 22.Qf5 Nc6 (22...Ke7 23.Ng6! hg6 24.Rc7 Kd6 25.Qc5 Ke6 26.Re7 Kf6 27.0–0) 23.Qd7 1–0. b4_player – anony, internet, 2014.

4.e3 e5 5.Nf3 Nd7 6.Nc3 c6 7.Nh4 Be6 8.f5 Bf7 9.b5 Bd6 10.Qg4 Kf8 11.Be2 Ne7 12.0–0 c5 13.a4 b6 14.Qf3 Qc7 15.Qh3 e4 16.Ng6 Bg6 17.fg6 h6 (better is 17...Ke8!?+=) 18.Qe6+– Ng6 19.Nd5 Bh2 20.Kh1 Qd6 21.Qe4 Nge5 (21...Re8 22.Qg6 Qd5 23.Kh2 h5+–) 22.Nf6 (22.Kh2 Nf3 23.Kh3 Ng5 24.Kg4 h5 25.Kf5 g6 26.Kg6 Ne4 27.Nf6 Rg8 28.Kh6 Ke7 29.Rad1 Rh8 30.Kg7 Ndf6 31.Bf6 Qf6 32.Rf6 Rag8) 22...Nf6 (22...gf6 23.Qa8 Kg7 24.Qa7 Bg3+–) 23.Qa8 (23.Kh2?? Nf3 24.Kh1 Qh2) 23...Kf7 24.Qh8 Neg4 (24...Bg3+–) 25.Bg4 Be5 26.Bh5 1–0. b4_player – waldemar, internet, 2013.

4.e3 e6 5.a3 =.

4.e3 e6 5.b5 Bd6 6.Nf3 Nd7 7.c4 Ne7 8.Nd4 Nc5 9.Nf5 Nf5 (worse is 9...ef5 10.d4 Ne4 11.c5+/–) 10.cd5 ed5 11.Nc3 0–0? (better is 11...d4!? 12.Nd5 c6 13.bc6 bc6 14.ed4 cd5 15.dc5 Qe7 (15...Bf4?? 16.Qa4 Kf7 17.Qf4+–) 16.Be2 Bc5+=) 12.Nd5+/– Re8 (12...c6!? 13.Nc3 Kh8+/–) 13