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TESTH050 Release 2016-06-01
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(c) Marek Trokenheim

1.b4 e5 2.Bb2 Qe7
Ziese's defence

(...)

3.a3 Qb4?? 4.ab4+– Nc6 (4...f6 5.Nc3 c6 6.b5+–) 5.e3 (5.b5!? Nd4+–) 5...Nb4 (5...Bb4 6.Bb5 Nge7 7.Qh5+–) 6.Nf3 (better is 6.Be5 d6 7.Bc3 d5+–) 6...Nc2 7.Qc2 Bd6 8.Bc4 Nf6 9.0–0 Ng4 10.Be2 Nf2 11.Rf2 Bb4 12.d4 ed4 13.Bd4 0–0 14.Ra7 Ra7 15.Ba7 1–0. Fournier,Frederic (1905) – kike20, Active Blind, 2008.

3.a3 b5 4.Nf3 d6 5.e3 Bb7? 6.Bb5+/– c6 7.Be2 Nf6 8.0–0 g6 9.d4+– e4 10.Nfd2 d5 11.c4 Bg7 12.Nc3 Nbd7 13.Rc1 0–0 14.Qa4 Rfb8 15.Qa5 h5 16.Rc2 Qd8 17.Qd8 Rd8 18.cd5 cd5 19.Rfc1 Rac8 20.Nb3 Nb6 21.Nc5 Bc6 22.Ba6 Rc7 23.Nb1 Rd6 24.b5 Be8 25.Ne4! Rc2 26.Nf6 Bf6 27.Rc2 Nc4 28.Nc3 Bd8 29.Bb7 Nb2 30.Rb2 Bb6 31.Bd5 Bd7 32.Ne4 Rd5 33.Nf6 Kg7 34.Nd5 Be6 35.Nb6 ab6 36.Rc2 Bb3 37.Rc6 f5 38.h4 Bd5 39.Rb6 Be4 40.a4 Bc2 41.a5 Kf7 42.Rb7 Ke6 43.a6 Be4 44.Rb6 Kd7 45.a7 Kc7 46.Rb8 Bd5 47.b6 Kd7 48.b7 Kc7 49.Rc8 Kb7 50.a8Q Kb6 51.Qd5 g5 52.Rc6 Ka7 53.Qd7 Kb8 54.Rc8# 1–0. kamret (2280) – p.i.sumi (1625), GameColony.com, 2003.

3.a3 g5 4.d4 e4 5.d5+= f6 6.e3 Nh6 7.d6 cd6 8.Nc3+– Qe5 9.Rb1 Qf5 10.Nd5 Ng4 11.f3 ef3 12.Nf3 Kd8 13.Be2 Nc6 14.0–0 Ne7 15.Ne7 Be7 16.Nd4 Ne3 17.Nf5 Nd1 18.Bd1 d5 19.Ne7 Ke7 20.Bf6 Kd6 21.Bh8 Kc7 22.Rf7 b5 23.Be5 Kb7 24.Bf3 Kc6 25.Rf6 d6 26.Rd6 Kb7 27.Bd5 (27...Kc7 28.Rg6 Kd8 29.Rg7 h6 30.Bf6 Ke8 31.Re1 Be6 32.Be6 Rd8 33.Rg8#) 1–0. pierre (2210) – ketanmeh, internet, 2007.

3.a3 Qg5 4.Nf3+/– Qf6 (4...Qe7 5.Be5 Nc6 6.Bb2+/–) 5.Be5 Qe7 (Better is 5...Qd8!?+/–) 6.Bc7+– Na6 (6...d6 7.Bb8 Rb8 8.e3+–) 7.Bf4 Nb4? (7...Nf6+–) 8.ab4 Qb4 9.e3 Qc5 10.d4 Qe7 (10...Qb4 11.Nbd2+–) 11.Bd3 (11.Na3 d6+–) 11...Nf6 12.0–0 Nd5 (12...d6 13.Bg5+–) 13.Re1 (13.Ra5 Nf4 14.ef4 Kd8+–) 13...b5 (13...Qd8 14.c4 Nf6 15.e4+–) 14.Bb5 a6 15.Bc4 Nb6 16.Bd3 a5 17.c4 d6 18.Nbd2 Bg4 19.Qb3 Rb8 20.c5! Nd7 21.Qa2 Be6 22.Qa5 Qd8 23.Ne4 d5 24.Bc7 Qc8 25.Ba6 Rg8 26.Bc8 Rc8 27.Neg5 1–0. radyk – sport_angel, GameColony.com, 2002.

3.a3 Qh4 4.Nf3 Qf6 5.Be5 Qa6 6.Bc7 Nc6 7.e3 b5 8.c3 Bb7 9.a4 Rc8 10.Bb5 Qb5 11.ab5 Nb4 12.cb4 Rc7 13.0–0 Bb4 14.d4 Ne7 15.Ra7 0–0 16.Qa4 Bd6 17.Nbd2 Nd5 18.Nc4 Bb4 19.b6 Bc6 20.Qa6 Ra8 21.Ra8 Ba8 22.Qa8 Bf8 23.Qd5 Rc8 24.b7 Rb8 25.Nb6 Rd8 26.Nd7 Bb4 27.b8Q Rb8 28.Nb8 1–0. Trkn – playa697, itsyourturn.com, 2000.

3.a3 Nh6 4.e4 d6 5.Nf3 Bd7 6.c4 a6 7.a4 Nc6 8.b5 Nb4 9.Ba3 a5 10.Be2 c6 11.0–0 c5 12.Nc3 Rd8 13.Na2 f5 14.Nb4 ab4 15.Bb2 Ra8 16.d3 b6 17.Ne1 f4 18.g3 Bh3 19.Ng2 Qg5 20.Bf3 Be7 21.Qd2 0–0 22.Rfd1 Rf7 23.Ne1 Kf8 24.Bg2 Bd7 25.Nf3 Qg6 26.Qe2 Ng8 27.Qf1 h5 28.Bc1 Qh6 29.Bh3 Ra7 30.Bd7 Rd7 31.Qh3 Nf6 32.Nh4 g6 33.a5 Ra7 34.a6 Ra8 35.Kh1 Ng4 36.Qf1 (time, 1–0). Trkn – Steve, itsyourturn.com, 2000.

3.Ba3 e4 4.Qc1 Nf6 5.b5 d6 6.e3 Nbd7 7.Nc3 Ne5 8.Nge2 Bf5 9.Ng3 Bg6 10.Be2 0–0–0 11.0–0 Qe6 12.Bb2 Be7 13.Re1 h5 14.Bd1 h4 15.Nge2 Qc4 16.Nf4= Bf5 17.Be2 Qc5 18.Ba3 Qb6 19.Ncd5 Nd5 20.Nd5 Bf6 21.Nb6 ab6 1–0. EXchess 3.11 – Comet B50, 2004.

3.Ba3 Nf6 4.b5 d6 5.Nf3 =+.

3.a4 c5 4.bc5 Qc5 5.Ba3 Qc7 6.Bf8 Kf8 7.e4 Nf6 8.Nc3 Nc6 9.Rb1 Rb8 10.Nf3 b6 11.Be2 Nd4 12.Nd4+/– ed4 13.Nb5 Qf4 14.d3 d5 15.ed5 Bg4 16.g3 Qf5 17.Nd4?? Qd5–/+ 18.Nf3 Qa5 19.Qd2+= Qa4 20.0–0 Qc6?? 21.Ne5+– Qe6 22.Ng4 Ng4 23.Qb4 Ke8 24.Bg4 Qa2 25.Rfe1 Kd8 26.Qe7# (26.Qd6#) 1–0. 1805DYDIDIDY – Fuffy, mySchach.de, 2005.

3.a4 Qe6 4.Nf3= Bb4 (4...f6!?=) 5.Be5+= (5.Ne5?! Nf6=) 5...d6?? (better is 5...Nf6 6.Bc7 Nc6+=) 6.Bg7+– 1–0. Wall,Bill – Babeolishors, internet, 2000.

3.b5 Qb4 4.Be5= Nc6?? (better is 4...d6 5.Bc3 Qb5=) 5.bc6+– d6 (5...dc6 6.Bc7 Bd6 7.Bd6 Qd6 8.e3+–) 6.cb7 Bb7 7.Bc3 Qc5 8.d4 Qb6 (8...Qc6 9.e3+–) 9.f3 (9.d5 c6+–) 9...0–0–0 (9...d5 10.e3+–) 10.e4 c5 (10...d5 11.e5+–) 11.d5 Ne7 12.a4 f5 (12...Ba6 13.Bb5!+–) 13.Bd3 g6 14.Bh8 Bh6 15.Bf6 fe4 16.fe4 Qc7 17.Qg4 Kb8 18.Qh4 Bf8 19.Qh7 Nd5 20.Qc7 Nc7 21.Bd8 Bg7 22.Bc7 Kc7 23.c3 Bc3 24.Nc3 Kc6 25.Bb5 Kb6 26.Nf3 1–0. Baer,Cy (1895) – Jahn,Josie, remoteschach.de, 2007.

3.b5 b6 4.e4 Bb7 5.Nf3 Be4=+ 6.Ne5 Qe5?? 7.Be5+– f6 8.Bc7 g5 9.Qe2 Bg7 10.c3 d5 11.d3 f5 12.Qh5 Kd7 13.Qg5 Bh6 14.Qd8 Ke6 15.Qd6 Kf7 16.de4 Ne7 17.Qh6 Nd7 18.ef5 Nf5 19.Qh5 Ke6 20.Bd3 Rhf8 21.0–0 Nc5 22.Re1 Kf6 23.Qf5 Kg7 24.Qh7 (24...Kf6 25.Qg6) 1–0. gtate (1930) – mwoodhead, net–chess.com, 2004.

3.b5 Qc5 4.e3 Qb4 (4...Qe7 5.d4 d6 6.Nf3=) 5.Ba3 Qa5 6.Bf8 Kf8 7.Nc3 (7.Qh5 d6+=) 7...Nf6 8.Bd3 (8.Bc4 d6=) 8...g6 (Better is 8...d5!?=+) 9.Nf3 Kg7 (Better is 9...d6+=) 10.Ne4 (Better is 10.Ne5 d6 11.Nc4+/–) 10...Ne4=+ 11.Be4 d6 (11...f5 12.Bd5 Qb5 13.Bb3–/+) 12.Ng5 Qb5 13.d3?? h6 14.a4?? Qb4 (15.Qd2 Qd2 16.Kd2 hg5–+) 0–1. pinecrest1981 – Freud, Live Game Caissa's Web, 2004.

3.b5 c6 4.bc6 dc6 5.d4 Nd7 6.e3= Ngf6 7.Nd2 Qb4 8.Rb1 ed4 9.Bd4 Qa4 10.Bc4 b5 11.Bb3 Qa5 12.Ngf3 Nd5 13.Ng5+/– f6? 14.Bd5+– fg5?? 15.Bc6 Rb8 16.Qh5 g6 17.Qg5 Be7 18.Qe5 Rf8 19.Qb8 Kd8 20.Bd7 Kd7 21.Qb5 Qb5 22.Rb5 Ba6 23.Ra5 Bc8 24.Ra7 Ke6 25.0–0 Bh4 26.Rb1 Kf5 27.Rb5 Ke6 28.Re5 Kd6 29.Ne4 Kc6 30.Rc5 Kb6 31.Rcc7 Kb5 32.Nd6 Kb4 33.Bc3 (33.a3#) 1–0. Rosner,Dirk – Heinrichs, email, 1999.

3.b5 d6 4.e4 Nf6 5.d3 Bd7 (5...a6 6.a4=+) 6.c4 c6 (6...a6 7.Nc3=+) 7.bc6 (7.Nc3 cb5 8.cb5 d5 9.ed5 Bg4=) 7...Nc6 8.Ba3 Qd8 9.Be2 Qb6 10.Nf3 Nd4 11.Nd4+= Qd4 12.Nd2 Ba4?? 13.Qa4+– (13...b5 14.Qb5 Nd7 15.Nb3+–) 1–0. pinecrest1981 – amstel, Live Game Caissa's Web, 2004.

3.b5 Kd8 4.e3 Nf6 5.Nf3 d6 6.d4 e4 7.Nfd2 Bg4 8.Be2 Be2 9.Qe2 Nbd7 10.Nc3 d5 11.a4 Kc8 12.0–0 h5 13.h4 Ng4 14.g3 Ndf6 15.f3 ef3 16.Qf3? (16.Rf3 Qe6) 16...Qe3 17.Qe3 Ne3 18.Rf3? (18.Rf2 Nc2) 18...Nc2 19.Rc1 Nd4 20.Rd3 Bc5 21.Nd5 Ne2 22.Kh2 Nc1 23.Bc1 Rd8 24.Nf4 Rd3 25.Nd3 Be3 26.Ne5 Ng4 27.Ng4 hg4 28.Nb3 Bc1 29.Nc1 a6 30.ba6 Ra6 31.Nd3 Ra4 32.Ne5 b5 0–1. Guest153461 – Wall,Bill, playchess.com, 2012.

3.b5 f6 4.e3 d6 5.Nf3 Bg4 6.Be2 Nd7 7.d4 ed4 8.Nd4 Be2= 9.Qe2 Nh6 10.0–0 Ne5 11.h3 Qd7 12.a4 Be7 13.Nf3 0–0= 14.Ne5 de5 15.Nc3= Qe6 16.Ba3 Ba3 17.Ra3 Qd6 18.Rb3 Nf7 19.Rd1+= Qe6 20.Nd5 Rac8 21.Rbd3 c6 22.bc6 Rc6 23.c3 Rfc8 24.Qb2 b6 25.Qa3 Rc5= 26.e4 h6 27.f3 Kh8 28.Qa1 Ra5 29.R1d2 Rc4 30.Qa3 Rac5?? 31.Ne3+– Kh7 32.Nc4 Qc4 33.Rd7 a6 34.Rb7 Ng5 35.Rb6 Ra5 36.Qb4 Ra4 37.Qc4 Rc4 38.Ra6 Rc3 39.Rd7 Rc1 40.Kh2 Rc2 41.Kg3 Rc3 42.Ra4 Kg6 43.Re7 Rc6 44.h4 Ne6 45.Raa7 Rd6 46.Kh2 h5 47.g3 Kh6 48.Re8 Kg6 49.Rae7 Nd4 50.Kg2 Nc6 51.Rc7 Rd2 52.Kf1 Rd6? 53.Rf8 Nd8 54.Re8?? Kh6?? 55.Rh8+– Kg6 56.Rg8 Ne6 ½–½. Luettig,Hendrik – Fladda,Walter, Pinneberg Winter–A, 1997.

3.c3 c5 4.Qa4 cb4 5.cb4 Nc6 6.b5 Qb4 7.Qb4 Nb4 8.Na3 d6 9.e4 a6 10.Bc3= d5 11.Rb1 Na2–/+ 12.Rb2?? ab5 13.Nb5 Ra4 14.ed5 Ba3?? 15.Ra2+– Re4 16.Ne2 Bb4 17.Kd1 Bg4 18.f3 Bf3 19.gf3 Rg4 20.fg4 Bc3 21.Nec3 Kd7 22.Ra7 Kc8 23.Nd6 Kb8 24.Ncb5 Nf6 25.Rb7 Ka8 26.Nc7 1–0. ifairclough – quikeagle, net–chess.com, 2001.

3.c3 f6 4.e4 Nc6 5.Nf3 Qf7 6.d4 ed4 7.Nd4 Nge7 8.Bd3 Nd4 9.cd4 Ng6 10.d5 Bb4=+ 11.Bc3 Bd6 12.0–0 Nf4 13.Qf3 Be5 14.a4 0–0 15.Bb4?? Nd3–+ 16.Bf8 Ba1 17.Bg7 Ne5 18.Qg3 Qg7 19.Qg7 Kg7 20.Nd2 Bc3 21.Nb3 Nd3 22.Rd1 Nb2 23.Ra1 b6 24.a5 Nd3 25.ab6 Ba1 26.Na1 ab6 27.h3 Ra1 28.Kh2 b5 29.Kg3 b4 30.f3 b3 (31.Kg4 b2–+) 0–1. Jan van Dijk – Klaus Behrmann (2265), ChessWorld.net, 2003.

3.Nc3 Qb4 4.Rb1 Qe7 5.e3 Qd8 6.d4 ed4=+ 7.Qd4 Nf6 8.Bd3 (8...Nc6 9.Qf4–/+). juancabeta – nachodynamite, internet, 2007.

3.Nc3 c6 4.e3 Qb4–/+ 5.Rb1 Qe7 6.Nf3 Nf6 7.d4 ed4 8.Nd4=+ g6 9.Bd3 Bg7 10.0–0 0–0 11.Re1 d6 12.e4 Ng4 13.Nf3 Nd7 14.h3 Nge5 15.Ne2? Nf3–+ 16.gf3 Ne5 17.Ng3 Bh3 18.f4 Qh4?? 19.fe5+= Be5 20.Be5+/– de5 21.Rb7 Rfd8 22.Qb1 Bg4 23.Qb3 Be6+/– 24.Bc4 Qf6 25.Be6+– fe6 26.Qe3 Rf8 27.Rd1 h5? 28.Rdd7 Rfe8?? 29.Rg7! Qg7 30.Rg7 Kg7 31.Qg5 Kh7 32.Qe5 Rac8 33.Qc5 a6 34.Qa7 Kg8 35.Qa6 Red8 36.Qc4 Re8 37.e5 Kg7 38.Ne4 Rb8 39.Nd6 Re7 40.Qc6 Rb1 41.Kg2 Rb2 42.Qc4 Rb8 43.Qf4 Ra7 44.Qf6 Kh7 45.Qe6 Rb6 46.Qc4 Rba6 47.Nc8 Ra8 48.e6 (48...Ra4 49.Qc7 Kh6 50.c4 Ra2 51.Qf4 g5 52.Qf6 Kh7 53.Ne7 Rf2 54.Kf2 Ra2 55.Ke3 Ra3 56.Kd4 Rd3 57.Kd3 h4 58.Qf7 Kh6 59.Nf5) 1–0. gtate (1720) – gfry (1675), net–chess.com, 2002.

3.c4 a6 4.a3 Nf6 5.e3 d6 6.Be2 Be6 7.d4 ed4 8.Qd4 Nbd7 9.Nc3 g6 10.Nd5 Nd5 11.cd5 1–0. Bonetti,Shane (2157) – CaptinCrunch, ICC, 2002.

3.c4 g6 4.b5 Bg7 5.e3 Nf6 6.Nc3 c6 7.Nf3 0–0 8.d4 e4 9.Nd2 d5 10.a4 Rd8 11.a5 Nbd7 12.a6 c5 13.Ba3 Qe8? 14.dc5 d4? 15.ab7+– Bb7 16.ed4 e3 17.Nb3 ef2 18.Kf2 Ne5 20.Kg1 Rd4 21.Nd4 Rd8 22.Nc2 Bf3 23.Qe1 Bh6 24.Nd5 Bd5 25.cd5 Rd5 26.h3 Ne3 27.Ne3 Nf3 28.Kf2 Ne1 29.Nd5 Qe5 30.Re1 Qf5 31.Kg1 Qd5 32.Kh2 Qb3?? 33.Bc1 Bc1 34.Rc1 Qe3 35.Rd1 Qc5 36.g3 h5 37.h4 g5 38.hg5 h4 39.Rd3 Qc2 40.Kh3 hg3 41.Rg3 Qh7 42.Kg2 Qe4 (42...Qc2 43.Kg1 Qc5 44.Kh2 Qf2 45.Bg2+–) 1–0. Katalymov,Boris N – Zaitsev,Igor A, URS–ch sf Odessa, 1972.

3.Nf3 Qb4?! 4.Be5 d6 5.Bc3 +=.

3.f4 ef4 4.Nf3 b6 5.a3 Bb7 6.d3 Nf6–+ 7.c4 Ng4 8.Nbd2 Ne3 9.Qb3 d6 10.g3 fg3 11.hg3 a5 12.ba5 Ra5 13.Bh3 Na6 14.Bc3 Nc5 15.Qb1 Ra7 16.Kf2? f5–+ 17.Qb5 Kf7 18.Ra2 Ng4 19.Bg4?? fg4 20.Nh4 Bh1 21.Nb3 Qe8 22.Qe8 Ke8 23.Nd4 Kd7 24.Nb5 Ra6 0–1. dixi82 – smoothmovermovesagain, ChessWorld.net, 2006.

3.a3 c6

4.e3 h6 5.c4 Na6 6.Be2 Nc7 7.Nc3 d6 8.d3 Bd7 9.Nf3 Be6 10.0–0 g6 11.h3 Bg7 12.c5 (12.d4 f5+=) 12...d5 (12...dc5 13.Ne4 cb4 14.Ne5=) 13.Qc2 Nf6 (13...0–0–0 14.Qa4 Kb8 15.b5 Qc5 16.bc6 Qc6 17.Qc6 bc6 18.Rab1=) 14.Rad1 (14.Ne5 Bh3 15.Nc6 bc6 16.gh3 Qe6+/–) 14...0–0 (14...Nd7 15.d4=) 15.Qb1 (15.Ne5 Bh3 16.Nc6 bc6 17.gh3 a5+=) 15...Qd7 (15...Nd7 16.d4=) 16.Qc2 (16.Ne5 Qe7+/–) 16...Rfe8 (16...Qe7 17.Ne5 Bh3 18.Ng6 fg6 19.gh3+=) 17.Qb1 (better is 17.Ne5!? Qe7 18.d4+/–) 17...Nh7 18.Qc2 Re7 19.Qb1 Rae8 20.Qc2 f5 21.Qb1 (21.d4 ed4 22.Nd4 Ng5+=) 21...Bf7 Black prepares e4 (21...d4 22.Na2+=) 22.Qc2 (22.d4 ed4 23.Nd4 Ne6 24.Ne6 Qe6+=) 22...Qc8 (22...d4 23.Nb1+=) 23.Qb1 (23.d4 ed4 24.Nd4 Ne6+=) 23...e4 (23...d4!? 24.Na2 de3 25.fe3 Nd5–/+) 24.de4 de4 25.Nd4 Nf6 26.Rfe1 Nfd5 27.Nd5 Nd5 28.Bf1 Be5 29.Ne2 Bb2 30.Qb2 b6 31.cb6 ab6 32.Nc3 Nc3 33.Qc3 b5 34.Rd2 Bc4? 35.Bc4+– bc4 36.Red1 Rd7?? 37.Rd7 Qd7 38.Rd7 Rb8 39.Rd4 c5 40.bc5 Rb2 41.Qb2 g5 42.Rc4 Kf7 43.Rc1 Kg6 44.c6 Kh5 Black prepares g4 45.c7 g4 46.c8Q Kh4 47.hg4 fg4 48.Qg4! Kg4 49.Qe2 (49.Qe2 Kf5 50.Qb5 Kf6 51.Rc6 Ke7 52.Qb7 Kd8 53.Rc8; 49.Qb5 Kh4 50.Qf5 h5 51.Qf4) 1–0. Fournier,Frederic (1935) – tiroles, Active Blind, 2007.

4.Nf3 e4 5.Nd4 d5 6.e3 Nf6 7.Be2 g6 8.0–0 Bg7 9.f4 ef3 10.Nf3 0–0 11.c4 Re8 12.cd5 Nd5 13.Bg7 Kg7 14.Nc3?? (better is 14.Qc1+=) 14...Nc3–+ 15.dc3 Qf6?? (better is 15...Qe3 16.Rf2 Qc3–+) 16.Qd2= Qe6? (better is 16...Qe7 17.Qd4 f6=) 17.Ng5+– Qe3?? 18.Qe3 Re3 19.Bc4?? f6–/+ 20.Nf3 Rc3 21.Rfc1 Rc1 22.Rc1 Bf5 23.Re1 Na6 24.Re7= Kh6 25.Rb7 Nb8 26.Nd4 Be4 27.Re7 f5 28.Re8 c5 29.bc5+/– Nc6?? 30.Ra8+– Nd4 31.Ra7 1–0. Fournier,Frederic – Neptuniano (1680), Active, 2007.

3.a3 e4

4.e3 c6 5.d3 Nf6 6.de4 Ne4 7.c4 d6 8.Nc3 Nc3 9.Bc3 Nd7 10.Ne2 Ne5 11.Qd4 Be6 12.Nf4+= c5? 13.bc5+– Qf6? 14.cd6 Rd8 15.Qe5 Qe5 16.Be5 f6 17.Ne6 Rd7 18.Nf8 Rf8 19.Bd4 (19...Rd6 20.Bc5+–; 19.Bg3 Kf7+–) 1–0. orane – malta4, internet, 2005.

4.e3 d5 5.d3 Bf5 6.Ne2 Bg4= 7.de4 Be2 8.Qe2 Qe4? 9.Nc3 Qe5 10.Qb5 Nd7 11.Qb7 Nb6? 12.0–0–0 Nf6 13.Nd5! Qb2 14.Kb2 Nfd5 15.Rd5 Rd8 16.Rd8 Kd8 17.Bb5 Bd6 18.Qb8 Nc8 19.Rd1 Ke7 20.Qa8 Rd8 21.Kb3 c5 22.Qe4 Kf8 23.bc5 g6 24.Qh4 Ne7 25.cd6 Nf5 26.Qd8 Kg7 27.Qe8 Nh6 28.d7 (28...f6 29.d8Q g5 30.Qf8 Kg6 31.Qff6 Kh5 32.Qg5#) 1–0. Rosner,Dirk – Kientzler,Roland, corr SOK–89–37, 1989.

3.Ba3 d6

4.b5 f5 5.e3 Qf7 6.Be2= Be7 7.Bh5 g6 8.Be2 Be6 9.Nc3 Nf6 10.Bb4 Nbd7 11.Nh3 h6 12.Bf3 e4 13.Be2=+ Qg7 14.Nf4 Bf7 15.h4 Ne5 16.d4 Ned7 17.d5 Nb6 18.Qd4 Qg8 19.Rh3 Nfd5–/+ 20.Bc4?? Bf6–+ 21.Bd5 Bd4 22.Bf7 Qf7 23.ed4 Kd7 24.a3 g5 25.hg5 hg5 26.Nfe2 Rh3 27.gh3 Qh5 28.Ng1 Re8 29.a4 e3 30.f3 Qh4 31.Ke2 Qf2 (32.Kd1 Qf1#) 0–1. Kientzler,Roland – Ziese,Gerhard, corr SOK–89–37, 1989.

4.b5 Nf6 5.Nf3 =+.

4.e4 Nf6 5.Nc3 Nc6 =+.

4.e4 Nf6 5.Nc3 Be6 =+.

4.e4 Nf6 5.Bd3 Bg4 6.Be2 Qe6 7.c3 h5?? 8.h3?? Be2=+ 9.Ne2 Ne4–/+ 10.0–0 d5 11.d3 Ng5 12.d4 Bd6–/+ 13.Qd2 Nh3 14.Kh1 Nd7 15.b5 0–0–0 16.Bd6 cd6 17.Qe3 Nf6?? 18.Qg3?? Nf4–+ 19.Nf4 ef4 20.Qf4 h4 21.Nd2 h3 22.g3 h2 23.Nf3 Qh3 24.Ng5 Qd7 25.a4 Nh5 26.Qf7= Qg4 27.Qd5+/– Nf6 28.Qe6 Qe6 29.Ne6 Rd7 30.a5 d5 31.b6+/– a6 32.Rae1 Ne4+= 33.Re3 Re7=+ 34.c4?? Re6–+ 35.cd5 Re7 36.Rc1 Kd8 37.Rf3 Kd7?? 38.g4?? Kd6–+ 39.Rf5 g6 40.Rf3 Kd5 41.Rd1 Rd7 42.Re1 Ng5 43.Re5? Kc4 44.Rfe3 Rd4 45.Re1 Rg4 46.f4 Nf3 47.R5e4 Kd5 48.Re5 Ne5 49.Re5 Kd4 50.Rg5 Rf4 51.Rg1 Ke3 52.Rg3 Ke2 53.Rg2 Ke1 54.Rh2 Rf1 55.Kg2 Rh2 56.Kh2 Kf2–+ 57.Kh3 Rg1 58.Kh2 Rg3 59.Kh1 Rh3# 0–1. Goetzelmann,Klaus – Stoffers,Jeffrey, IECC, 1997.

3.b5 g6

4.c4 Bg7 (--> 3.c4 g6 4.b5 Bg7).

4.e3 Bg7 5.Nf3 a6 6.a4 d6 7.c4 Bf5 8.Nc3 Nf6 9.Be2 0–0 10.0–0 Nbd7 11.d4 ed4 12.ed4 Rfe8 13.Re1 Qf8 14.Nh4 Be6 15.d5 Bf5 (15...Bg4!+=) 16.Nf5+/– gf5 17.Bd3 (17.ba6 ba6 18.f3 Rab8+/–) 17...Re1 18.Qe1 Re8 19.Qd2 Nc5 20.Bc2 (20.ba6!? ba6 21.Qc2+=) 20...Nfe4= 21.Ne4 Ne4 (21...Bb2!? 22.Rb1 fe4 23.Rb2 ab5 24.ab5 Ra8=) 22.Bg7 Qg7 23.Qd1 (23.Re1!?+/–) 23...Nc3= 24.Qf3?? (better is 24.Qf1 ab5 25.ab5 Ne2 26.Kh1=) 24...Ne2–+ 25.Kf1 (25.Qe2 Re2 26.Rf1 Rc2 27.a5–+) 25...Qa1 0–1. madik – jtree, gameknot.com, 2008.

3.e3 Qb4

4.Be5 d6 5.Bc3 Qa4 6.Bd4 Bf5 7.Qf3 Qc2 (7...Bc2?? 8.Qb7 a6 9.Qa8+–) 8.Na3 Qe4 9.Nb5 Qf3 10.Nf3 Kd8 11.Ba7 Nc6 12.Nbd4 Nb4 (12...Na7?! 13.Nf5 g6 14.Ng3 +=.

4.Be5 d6 5.Bc3 Qa4 6.Nf3 Nc6 7.d4 (7.Be2 Bf5=) 7...Nf6 (7...d5!?=) 8.d5+= Nb4 9.Bf6 gf6 10.Nd4 a6 11.Nc3 Qa5 12.Nb3 Qa3 13.Bd3 Rg8 +=.

4.Be5 Qe7 5.Bc7 Qc5 6.Bg3 Qb4 7.Nc3 g6 8.Nd5 Qa3 9.Nc7 Kd8 10.Na8 Bg7 11.Bb8 Ba1 12.Qa1 f6 13.Bc4 Qe7 14.Ba7 Nh6 15.Bb6 Ke8 16.Nc7 Kf8 17.Nd5 Qe6 18.Qf6 Qf6 19.Nf6 Nf5 20.Bc7 b6 21.Be5 Ng7 22.Bd6# 1–0. Bonetti,Shane (2157) – guest671, ICC, 2002.

3.e3 Nc6

4.b5= Nd8 5.c4 f6 6.Nc3+= Ne6 7.Nf3 g6 8.d4 d6 9.Bd3+/– Bg7 10.0–0 Nh6 11.Nd5 Qf7+= 12.Qa4 0–0 13.Rac1 Rd8 14.Rfe1 Kh8 15.Qa3 b6 16.h4 a5 17.Bc2 Ng4 18.h5 g5 19.Rcd1 Re8 20.Qb3 f5 21.de5 Nc5 22.e6 Ne6 23.Nh2 Nh2 24.Bg7 Kg7 25.Qc3+= Kh6 26.Kh2 Qh5 27.Kg1 Qf7 28.g4 fg4=+ 29.Nf6 Rf8 30.Ng4 Kh5 31.Rd6?? Kg4 32.f3 +=. Rohde,Friedhelm – Ziese,Gerhard, corr 2.KGP–Z–01, 1994.

4.b5 Nd8 5.d4 ed4 6.Bd4 Nf6 7.Nf3 d5 8.Be2 Bg4 9.0–0 Ne6= 10.h3 Bf3 11.Bf3 Nd4 12.Qd4 b6 13.Bd5 0–0–0 14.c4 Nd5 15.cd5 Qg5 16.Nc3+– Be7 17.Rac1 Bc5 18.Qc4 Rhe8 19.Ne4 Qd5+/– 20.Nc5 Qc5 21.Qc5 bc5+/– 22.Rc5 Rd2 23.a4 Kb7 24.Rfc1 Re7 25.a5 Rb2 26.a6 Kb6 27.Rc6 Kb5 28.R1c5 Kb4 29.Rc4 Kb5+/– 30.Kf1 Rd7= 31.R4c5 Kb4 32.Rc1 f6?? 33.Rc7+– Rdd2 34.R7c4?? Kb5=+ 35.Rf4 Ka6 36.Ra1 Kb6 37.g4 a5 38.Rf5 Ra2 39.Rb1 Rdb2 40.Rb2 Rb2 41.Ke1? a4–+ 42.Kd1 a3 43.Kc1 Rb3 (44.Kc2 a2 45.Kb3 a1Q–+) 0–1. gtate (1765) – nerob (1740), net–chess.com, 2002.

4.b5= Nd8 5.Nf3 e4 6.Nd4 Ne6 =.

3.e3 f5

4.a3 d5 5.c4 Nf6 6.cd5 Nd5 7.d4 ed4 8.Bd4 Nc6 9.Nc3 Be6 10.Nf3 Nd4 11.Qd4 Nc3 12.Qc3 0–0–0 13.Bd3 f4 14.0–0+= fe3 15.fe3 Bd5 16.Rae1 h5 17.Ne5 Qg5? 18.e4 Be6+/– 19.Nf7 Bf7 20.Rf7 Be7 21.e5 Rhf8 (22.e6 Bd6+/–). Psion – Psion, 4 Min/Zug, 1991.

4.b5 (--> 3.b5 f5 4.e3).

4.c4 Nf6 5.a3 d6.

3.e3 g6

4.Nf3 Bg7 5.Be2 b6 6.0–0+= Bb7 7.c4 Qb4 8.Nc3?? Qb2–/+ 9.Rb1? Qa3–+ 10.Nb5 Qc5 11.d4 ed4 12.Nfd4 Ne7 13.Bf3–/+ Bf3 14.Qf3 d5 15.cd5 Nd5?? 16.Qe4 Kf8+/– 17.Rfc1 Nc3?? 18.Rc3+– Qe7 19.Qe7 Kg8 20.Rc7 Na6 21.Qf7 1–0. gtate (1720) – maf, net–chess.com, 2001.

4.Nf3 Bg7 5.Be2 d6 6.Nc3 =.

4.f4 f6 5.fe5 Qb4 6.Bc3 =.

4.f4 Bg7 5.Nf3 f6 6.Nc3 c6 7.Be2 ef4=+ 8.ef4 Qb4 9.Rb1 Qf4 10.0–0 d5 11.Qe1 Qd6 12.Qc1 Ne7 13.Ba3 Qd8 14.Re1 0–0 15.Ba6=+ Re8 16.Bb7 Bb7 17.Rb7 Nf5 18.g4 Nh6 19.h3 Nd7 20.d4 Nb6 21.Bc5=+ Nc4 22.Re8 Qe8 23.Re7 Qb8 24.Qe1 Nf7 25.Kg2 Bf8 26.Re6 Qf4 27.Bf8 Rf8–/+ 28.Ne2 Ne3 29.Kf2+/– Ng4 30.hg4 Qg4 31.Neg1 Ng5+= 32.Re7 Ne4 33.Ke2 f5 34.Qh4 Qg2 35.Kd1+= h5 36.Qf4?? Qf1–+ 37.Ne1 Qf4 38.Ke2 Qd2 (39.Kf3 Qf2#) 0–1. Caminade,Christian (2180) – Benoit,Michel (2290), FRA–ch Acc Montpellier, 1991.

3.Nf3 d6

4.e4 b6 5.Bc4+= Bb7 6.Qe2 Nc6 7.a3 0–0–0 8.0–0 g5 9.Rd1 g4= 10.Ne1 Nf6 11.Nc3 Bh6 12.Nd5+/– Nd5 13.ed5 Nb8 14.a4 Rhg8 15.a5 b5 16.Bb5 Bd5 17.c4 (17...Be6 18.d4+=). supertimchan (2075) – pauldopson, net–chess.com, 2004.

4.e4 Nf6 5.Nc3 =.

4.e4 Bg4 5.h3 Bf3 (5...Bh5 6.Nc3=) 6.Qf3+= Qf6 7.Qd3 Ne7 8.Nc3 c6 9.Be2 Na6 10.a3 Ng6 11.g3 Rd8 (11...Be7!?+=) 12.Qe3+/– Nc7? (better is 12...Ra8+/–) 13.Qa7+– Be7 (13...d5 14.Qb7 Qd6+–) 14.Qb7 Nb5 (14...Ne6 15.Qc6 Kf8+–) 15.Qc6 (15.Qc6 Kf8 16.Qb5+–) 1–0. pierre – oppo, internet, 2010.

3.Nf3 e4

4.Nd4 Qb4 5.Nb3 Qe7 –/+.

4.Nd4 Qb4 5.Bc3 Qc5 –/+.

4.Nd4 Qb4 5.Bc3 Qe7 6.d3 Nf6 7.Nf5 Qe6 8.de4 Qe4 9.Ng3 Qe6 10.e3 Nd5 11.Bb5 Nc3 12.Nc3 c6 13.Ba4 Qe5 14.Qd3 Bb4–+ (15.Nge2 b5–+). 0–1, Kellerer,Horst – Mrkvicka,Josef, CiF, 1999.

4.Ne5 Qb4 5.e3?? Qb2–+ 6.Nc3 Qb6 7.Rb1 Qd6 8.Nc4 Qe7 9.Qg4 d5 10.Na5?? Bg4–+ (11.Rb7 Qa3–+) 0–1. wach – WyleECoyote, Caissa.com, 2004.

4.Ne5 f6 5.Nc4 d5 –/+.

3.a3 a5

4.ba5 Ra5 5.e4 Nf6 6.Nf3 Ne4 7.Qe2 Ng5 8.Ne5 f6 9.Nc4 Ra6 10.Nc3 Re6 11.Ne3 Qd8 12.f4 Nf7 13.f5 Re5 14.d4 Re7 +/–.

4.ba5 Nc6 5.Nc3 Nf6 6.e4 Qd8 7.Nf3 Ra5 8.Bb5 Bc5 9.Bc4 d6 =+.

4.ba5 d5 5.e3 Nf6 6.h3 Qe6 7.d4 e4 8.Nd2 Bd6 9.Bb5 c6 10.Ba4 Ra5 11.Bb3 b5 12.a4 Qf5 13.ab5 Ra1 14.Qa1 Qg5 15.g3 cb5 16.Ba3 Ba3 17.Qa3 Bd7 18.Qa8 0–0=+ 19.Ne2 Nc6 20.Qb7 Rb8 21.Qc7 Ra8 22.Kf1 Qh5 23.g4 Bg4! 24.Qc6?? Ra1 25.Kg2 Bf3 26.Nf3 Qf3 0–1. Stiller – Alissa (2365), ChessWorld.net, 2003.

4.b5 b6 5.d4 ed4 6.Qd4 Nf6 7.Nf3 g6?? (better is 7...Bb7=) 8.Qf6+– Rg8 9.Qe7 Be7 10.e3 c6 11.Nbd2 Bb7 12.Bd3 f5 13.Bc4 d5 14.bc6 Bc6 15.Bd3 Nd7 16.Nd4 Ba4 17.Ne6 Kf7 (17...Rc8 18.Nf4 Bc6 19.Ba6+–) 18.Nc7 1–0. gurudela (1735) – spensley, gameknot.com, 2013.

4.Nc3 Nf6=+ 5.Nb5 d5 6.ba5 Ra5 7.e3 c6 8.Nc3 Bg4 9.Be2 Qe6 10.Nf3 Bd6 11.h3 Bf3 12.Bf3 Nbd7 13.e4 d4–/+ 14.Ne2 0–0 15.Ng3 Rfa8 16.Qb1 Nc5 17.d3 Rb5 18.Qa2 Qa2 19.Ra2 Na4 20.Ba1 Nb6 21.Bb2 Rba5 22.0–0 Ba3 23.Ba3 Ra3 24.Rb2 Nfd7 25.Rfb1 Ra1 26.Bg4 R8a2 27.Ra2 Rb1 28.Kh2 g6 29.h4 Nc5 30.h5 Kg7 31.Ne2 Nba4 32.hg6 hg6 33.f4 Kf6 (34.g3 b5–/+) 0–1. Pagni,Carlo – Trigance,Eric, corr ICCF TT–4–90–SF1, 1990.

4.e3 Nf6 5.Ne2 ab4 6.ab4 Ra1 7.Ba1 d5 8.Bc3 Ne4 9.b5 Qf6 10.f3 Nc3 11.Nbc3 Be6 12.Qa1 Bb4 13.Qa8 =.

4.b5 d5

5.e3 c6 6.c4 dc4 7.Bc4 Be6 8.Qa4 Qh4 9.bc6 Nc6 10.Bb5 Qa4 11.Ba4 Bd7 12.Ne2 Bd6 13.Nbc3 Nf6 14.d4 ed4 15.Nb5 Bb8 16.ed4 Ne7 17.0–0 0–0 18.Nec3 Ned5 19.Rfe1 Nc3 20.Nc3 Ba4 21.Na4 Rd8 22.Nc5 b5 23.Bc3 Bf4 24.g3 Bc7 25.Reb1 ½–½. Van Esbroeck,Jeff – Hoefer,Hans_Peter, 10 years 3a LSV M/V, 1999.

5.Nf3 Nd7 6.e3 Ngf6 7.Nc3 Qe6 8.Bd3 Bd6 9.0–0 Qg4 10.Be2= Qh5 11.Nd4 Qg6 12.Bd3 e4 13.Be2 Ne5 14.Kh1 Qh6 15.g3 Neg4 16.Bg4 Ng4 17.h4 g5 18.Kg2 (18.Nd5? gh4 19.Kg2 hg3–+) 18...gh4 19.Rh1 h3 20.Kf1 Nf2! 21.Kf2 (21.Nf5 Bf5 22.Qe2 Nh1 23.Ne4 Be4 24.Qg4–+) 21...Bg3 (22.Kf1 h2–+) 0–1. kamret (2150) – Scotwiz (1710), GameColony.com, 2003.

4.b5 Nf6

5.c4 Qe6 6.e3 d5 7.cd5 Nd5 8.Nf3 Bd6 9.Qb3 a4 10.Qa2 Nd7 11.Bc4 N7b6=+ 12.Bd5 Nd5 13.Qc4 f6 14.d3 0–0 15.0–0 Nb6 16.Qe6 Be6 17.Nc3 Rfd8 18.Rfd1 Bg4 19.Rac1 Ra5 20.Rb1 Be7 21.h3 Bh5 22.g4 Bg6 23.e4 Be8 24.Bc1 Bc5 25.Be3 Ba3–+ 26.Bb6 cb6 27.d4 ed4 28.Nd4 Bc5 29.Ne6 Rd1 30.Rd1 Bb5 31.Nb5 Rb5 32.Rd7 h6 33.Rg7= Kh8 34.Rb7 Ra5 35.Nc5 bc5–/+ 36.Kf1 a3 37.Rb1 a2 38.Ra1 Kg7 39.Ke2 Kf7 40.Kd3 Ke6 41.f4 Ra4 42.h4 Kd6 43.g5 fg5 44.fg5 hg5 45.hg5 Ke5 46.Kc3 ½–½. Manninen,Juha – Trigance,Eric, corr ICCF TT–4–90 SF, 1995.

5.d4 ed4 6.Nf3 c5 7.bc6 Nc6 8.Nd4 d5 9.Nd2 a4 10.e3 Bg4 11.N2f3 Nd4 12.Bd4 Ne4 13.Bd3 Ra5 14.Bb6 +/–.

5.e3 d5 6.Nf3 Bg4 7.Be2 Nbd7 8.0–0 Qe6 9.d3 Bd6 10.Nbd2 0–0 11.e4 Nb6 12.ed5+= Nfd5 13.Ne5 Be2 14.Qe2 Na4 15.Bd4 Nac3 16.Qe1 Nb5 17.Bb2 Rfe8 18.Ndc4 f6 19.Nf3 Qd7 20.Qb1 Bf4 21.Kh1 Kh8 22.Ncd2 Ndc3 23.Bc3= Nc3 24.Qb3 Bd2 25.Nd2 Qc6 26.Rae1 a4 27.Qb2 b6 28.f3 f5 29.Nc4 Qf6 30.Ne3 f4 31.Ng4 Qc6 32.Re5 Re5 33.Ne5 Qc5 34.Re1 Nd5 35.Nf7 Kg8 36.Ng5 Qc3 37.Qc3 Nc3 38.Ne4 Nb5=+ 39.Ra1 Kf7 40.Kg1 Ke6 41.Kf2 h6 42.c3 Rd8 43.Ke2 Rd5 44.Kd2 Rh5 45.h3 Re5 46.d4 Rd5 47.Kd3 g6 48.Kc4 Nd6 49.Nd6 Rd6 50.Rb1 Rc6= ½–½. Rosenhahn – Trigance,Eric, corr ICCF TT–4–90 SF, 1995.

5.Nf3 d6 =.

3.a3 a6

4.c4 Nf6 5.e3 d5 6.Nf3 Bg4 7.h3 Bh5 8.Qa4 c6 9.cd5 Bf3 10.gf3 Qd6 (better is 10...Nd5!? 11.Nc3 Nc3 12.Bc3 Nd7=) 11.dc6+/– Nc6 12.b5 Na7 13.ba6 Qc6?? (better is 13...b5 14.Bb5 Nb5 15.Qb5 Nd7+–) 14.ab7 Qa4 (14...Rb8 15.Qa7 Bd6+–) 15.ba8Q (worse is 15.ba8N Qc6 16.Be5 Nd7–/+; 15.ba8B?! Bd6 16.Nc3 Qc2=) 15...Kd7 (15...Ke7 16.Be5 Qd7 17.Nc3+–) 16.Qb7 (better is 16.Nc3!? Qa5 17.Nb5 Qb6 18.Qa7 Qa7 19.Na7 Bc5+–) 16...Kd8 17.Nc3 Qc2 (17...Qd7 18.Qb8 Nc8 19.Qe5+–) 18.Rc1 Qf5 19.Ba6 Bc5 (19...Qd7 20.Qb8 Ke7 21.Ne4+–) 20.Ke2 (better is 20.Nd5 Qc8 21.Qa7 Nd5 (21...Ba7?? 22.Rc8 Kd7 23.Nf6 gf6 24.Rh8+–) 22.Rc5 Qd7 23.Rc8 Ke7 24.Qd7 Kd7 25.Rh8 h6+–) 20...Re8 21.Nb5 Nb5 22.Rc5 Nd6 23.Qc7 1–0. Van Esbroeck,Dirk – Ventura,Bob, SN–2010–0–00295, 2010.

4.e3 Nc6 5.Nf3 d6 6.c4 b5 7.cb5+– ab5 8.Bb5 Bd7 9.Nc3 Nf6 10.0–0 Rb8 11.d4 ed4 12.ed4 Qd8 13.d5 Na7 14.Bd7 Qd7 15.Re1 Be7 16.Qe2 Nc8 (16...c5 17.bc5 dc5 18.Ne4+–) 17.Ne4 Ne4 18.Qe4 0–0 19.h3 (19.Nd4 Bg5+–) 19...Re8 (19...Ra8 20.Re3+–) 20.Qd4 (better is 20.Ng5! g6 21.Qh4 h5+–) 20...Bf6 21.Re8 (better is 21.Qg4!? Nb6 22.Bf6 Qg4 23.hg4 gf6 24.Red1+–) 21...Qe8+/– 22.Qd2 Bb2 23.Qb2 Nb6 24.Re1 (24.Qd4 f6+/–) 24...Qb5 25.Re7 (25.Qc2 Nd5 26.Nd4 Qa6+/–) 25...Rc8 (25...Nd5 26.Nd4 Qd3 27.Qe2 Qe2 28.Re2=) 26.Qe2 h6?? 27.Re8 Re8 28.Qe8 Kh7 29.Qb5+– 1–0. Fournier,Frederic – Hapadua, Active, 2007.

4.e4 b5 5.Nc3 Bb7 6.Nd5 (6.Nf3 Nf6 7.Bd3 Nc6 8.0–0 g6 9.Nd5 Qd6 10.Nf6 Qf6 11.c3 Be7; 6.Bd3 Nf6 (6...Nc6 7.Nf3 Nf6 8.0–0 g6 9.Nd5 Qd6 10.Nf6 Qf6 11.c3 Bg7; 6...c5 7.bc5 Nf6 8.Qf3 Qc5 9.Nge2 Bd6 10.0–0 0–0 11.a4 b4; 6...Qd8 7.Nf3 Nc6 8.0–0 Nf6 9.Qe2 Bd6 10.a4 ba4 11.Na4 Nb4) 7.Nge2 Qe6 8.0–0 Nc6 9.f4 Be7 10.f5 Qd6 11.Bb5 Nb4) 6...Bd5 7.ed5 d6 (7...Nf6 8.Qf3 (8.c4 a5 9.ba5 Ra5 10.cb5 Nd5 11.Qb3 c6) 8...c6 9.dc6 (9.c4 bc4 10.Bc4 e4 11.Qf5 Nd5) 9...dc6 (9...Nc6 10.Nh3 d5 11.Be2 Qc7) 10.c4= (10.Ne2 Qe6 11.Ng3 e4) 10...e4 11.Qc3 Qb7) 8.a4+/– ba4 (8...Nf6 9.ab5 Nd5 10.Qf3 e4 11.Qb3 Nf6) 9.c4 Nd7 (9...Nf6 10.Nf3 Nbd7 11.Qa4 Rb8) 10.Qa4 Ngf6 (10...f5 11.Nf3 Ngf6) 11.Bd3 (11.Nf3 Rb8) 11...Qd8 (11...e4+–) 12.Nf3 Be7 13.Qc2 Qb8 14.Bc3 Qb6 15.0–0 c5 16.Rfb1 Qc7 17.b5 g6? (better is 17...Qc8!?+/–) 18.ba6+– 0–0 (18...Ra7 19.Qa4+–) 19.Rb7 Qc8 20.Qb1 Bd8 21.a7 Bb6? (21...e4 22.Ra6 ef3+– (22...ed3?? 23.Rc6 Bc7 24.Rcc7+–)) 22.Rb6 Nb6 23.Qb6 Rd8 (23...Qd8 24.Ra6 Qb6 25.Rb6+–) 24.Ne5! Nd7 25.Qd6 Ne5 26.Qe5 Kf8 27.Re1 Ra7 28.Qg7# 1–0. usingprogram – poderoso1, internet, 2011.

4.e4 d6 5.Be2 Nf6 6.d3 Be6 7.c4 Nbd7 8.Nf3 h6 9.0–0 Bg4 10.Nbd2 Bf3 11.Nf3 c6 12.Nh4 g6 13.f4 Ne4 14.de4 Qh4 15.b5 Rg8 16.bc6 bc6 17.fe5 de5 18.Bg4 Rd8 19.Qf3 Bc5 20.Kh1 Qe7 21.Rad1 Rf8 22.Bd7 Rd7 23.Rd7 Kd7 24.Qf6 Bd4 25.Bd4 Qf6 26.Rf6 ed4 27.Kg1 a5 28.c5 Kc7 29.a4 d3 30.Kf2 d2 31.Ke2 d1Q 32.Kd1 Rd8 33.Kc2 Rd7 34.Kc3 Kb7 35.Rd6 Re7 36.Kd4 Nu kontrollerar Vit skeendet. Svarts kung sitter i en fδlla, δven det svarta tornet har rφrelseproblem. Vit satsar pε e–bonden. 36...Kc7 37.e5 Re6 38.Ke4 Re8 (38...Rd6?? ger Vit en avgφrande fribonde) 39.Rf6 Re6 40.Rf7 Kd8 41.Rf6 Rf6 Svart ger upp. 42.ef6 Ke8 43.h4 h5 44.Ke5 Kf7 45.g3 Ke8 46.Kf4 Kf8 47.Ke5 Kf7 48.Kd6 Vits plan: ta c–bonden, Svart hinner aldrig med nεgot motspel pε kungsflygeln. 48...Kf6 49.Kc6 Ke7 50.Kc7 Ke8 51.Kc8 Ke7 52.c6 Kd6 53.c7 g5 54.Kd8 1–0. Trkn – webguy4, itsyourturn.com, 2000.

4.e4 Nf6

5.Nc3 c6 6.Bc4 b5 7.Bb3 Bb7 8.Nf3 d6 (8...d5 9.d3=) 9.0–0+= g6 (9...c5 10.Re1+=) 10.Re1 Nbd7 (10...Bg7 11.d4+=) 11.Na2 (11.Ng5!? d5 12.f4+/–) 11...Bh6 (11...Bg7 12.a4=) 12.c4 (12.d4 0–0+=) 12...0–0= 13.cb5 cb5 (13...ab5 14.Nc3=) 14.Nc3+= Bc6 (14...Rac8 15.d4+=) 15.d4 Rad8 (15...Rfc8 16.Bc1 Bg7 17.Ng5+=) 16.d5 Ba8 17.Bc1 Bc1 18.Rc1 ½–½. Schutz – Bettinger, LohbergIII–Hammin, 1984.

5.d3 Nc6 6.Nf3 d6 7.Be2 h6 8.Nbd2 g5 9.h3 Bg7 10.c3 0–0 11.Qc2 d5 12.c4 d4 13.c5 Nd7 14.g4 Re8 15.Nf1 Nf8 16.Ng3 Ng6 17.Bc1 Nf4 18.Bf4 ef4 19.Nh5 Bh8 20.Nd2 Be6 21.f3 f6 22.h4 Bf7 23.hg5 hg5 24.Kf2 Ne5 25.Rh2 Ng6 26.Rah1 Nh4 27.Nf4 f5 28.gf5 Be5=+ 29.Ng6 Bg6 30.Rh4 gh4 31.fg6 Bg3 32.Kf1 Kg7 33.Qb2 Qf6 34.Qb3 Rf8 35.Qd5 c6 36.Qd7 Kg6 37.e5 Qe5 38.Ne4 Rad8 39.Qg4 Kf7 40.Bd1 Rg8?? 41.Bb3+– Rd5 42.Bd5 cd5 43.Nd6?? Qd6?? 44.Qg8!+/– Kg8 45.cd6 Kf7 46.Kg2 Ke6 47.Kh3 Kd6 48.Rc1 Bf4 49.Rc2 Bg5 50.Kg4 Be7 51.f4 Kd7 52.Kf5 b6 53.Kg6 a5 54.ba5 ba5 55.a4 Bd6 56.f5 h3 57.f6 h2 58.Rc1 Ke6 59.f7 Bf8 60.Rh1 Ke5 61.Rh2 Kf4 62.Re2 Kf3 63.Re8 Ba3 64.Kg7 1–0. nbh999 (2145) – waycoolguy (2120), ChessWorld.net, 2003.

5.d3 Nc6 6.Nf3 h6 7.c4 b6 8.Nc3 Nd4 9.Nd5 Nd5 10.cd5 Nf3 11.Qf3 g5 12.Rc1 Ra7 13.Be2 Bg7 14.Rc2 Qd6 15.h4 gh4 16.Rh4 Qf6 17.Qg3 d6 18.f4 ef4?? 19.Rf4 Qf4?? 20.Qf4+– 1–0. nbh999 (1960) – Stiller, ChessWorld.net, 2003.

3.a3 c5

4.Nc3 Nf6 5.bc5 Qc5 6.e4 =.

4.Nc3 cb4

5.ab4 Qb4 6.Nd5 Qd6 =.

5.Nd5 Qd6 6.Nb4 Nc6 7.Nc6 dc6 8.e4 Nf6 9.Nf3 Bg4 10.h3 Bf3 11.Qf3 0–0–0 (11...Be7 12.Rd1=) 12.Qf5 Nd7 (better is 12...Qd7 13.Bc4 Qf5 14.ef5 Nd5=) 13.Qf7+/– Nc5 (13...Qc5 14.Qb3+/–) 14.Qf5 Nd7 (14...Qd7 15.Be5 Ne4 16.Qd7 Kd7 17.d4+/–) 15.Bc4+– g6 16.Qe6 Kb8 (16...Kc7 17.Qf7+–) 17.f4 Qd2?? (17...Qc7 18.fe5 Bg7+=) 18.Kd2 Nc5 19.Kc1 (19.Ke1 Ne6 20.Be5 Bd6 21.Bh8 Nf4+–) 19...Ne6 20.Be5 Ka8 21.Be6 Bd6 22.Bh8 Rh8 23.e5 Be7 24.Rd1 Bc5 25.Kb2 (25.Kb2 Be3 26.g3+–) 1–0. Rosner,Dirk – Moderlak, corr SOK–E008A, 1999.

5.Nd5 Qd8 6.Nb4 (6.Be5 d6 7.Bb2 ba3 8.Ra3 Ne7 9.Ne7 Qe7+/–) 6...Bb4 (6...d6 7.e4=) 7.ab4 Qe7 (7...d6 8.e3=) 8.Ba3 (8.Nf3 d6=) 8...b5 (8...Nf6 9.Nf3=) 9.e3+= a6 (9...Bb7 10.f3 (10.Bb5?? Bg2 11.Qg4 Bh1–+) 10...a6 11.Ne2=) 10.Qg4 Qf6 11.Bb2 Bb7 12.Nf3 (12.d4 d6+=) 12...Nh6 (12...Nc6 13.Bd3+=) 13.Qg5 The pressure on e5 grows (13.Qh5 Bf3 14.gf3 Nc6+/–) 13...Qg5= 14.Ng5 Nc6 (14...f6 15.Nh3=) 15.Bc3+= 0–0 16.Be2 (16.Bd3 f5+=) 16...d5 17.Nf3 (17.d4 ed4 18.ed4 Rfe8=) 17...Rfe8 18.0–0 (18.d4 f6=) 18...Ng4?? (better is 18...d4!? 19.Bb2 Nb4–/+) 19.h3 (19.d4!?+=) 19...Nf6+= 20.Rfe1 Ne4 21.Red1 Nc3 22.dc3+= Rad8 23.Kh2 d4–/+ 24.cd4 ed4 25.Rd3 Nb4–+ 26.Rd4 Rd4 27.Nd4+= Nc6?? 28.Nc6+/– Bc6 29.Ra6 Rc8 30.Rb6 Kf8 31.Kg3 Bd7 32.Bd3 g6 33.Kf3 Ke7 34.Ke2 Kd8 35.Kd2 Kc7 36.Rf6+– Be8 37.Rf4 Kd6 38.Rb4 Kc5 39.c3 Ra8 40.Rb2 Bc6 41.f3 h5 42.e4 h4 43.Ke3 Ra3 44.Rc2 Bd7 45.Kf4 Be6 46.Kg5 Bc4 47.Bc4 Kc4 48.Kf6 Ra7= 49.e5 Rb7 50.e6 fe6 51.Ke6 Kd3 52.Rc1 Kd2 53.Rb1 Kc3 54.Kf6 Rb6–+ 55.Kg5 b4 56.Kh4 b3 57.Kg5 Kc2 58.Re1 b2 59.f4 b1Q 60.Rb1 Kb1 61.g4 Kc2 62.f5 gf5 63.gf5 Rb3 64.h4 Rg3 65.Kh6 (65.Kh6 Rf3 66.Kg6+=) 1–0. Trkn – joker_44, itsyourturn.com, 2000.

4.bc5 Qc5

5.Nf3 Nc6 6.e3 d5 (6...Nf6 7.Be2=) 7.d3 (better is 7.Ne5 Qb6 8.Ra2+/–) 7...Bg4 8.Be2 Nf6 (8...Qb6 9.Ra2 Bd6 10.0–0+=) 9.Nbd2 (better is 9.Ne5!? Be2 10.Qe2+=) 9...Bd6= 10.0–0 0–0 11.Nb3 Qb6 12.Rb1 Qc7 13.h3 Bh5 14.Nfd2 Be2 15.Qe2 e4?? (15...Qe7 16.a4+=) 16.de4?? (better is 16.Bf6 gf6 17.de4 de4 18.Ne4 Ba3 19.Qg4 Kh8 20.Nf6+–) 16...Ne4= 17.Ne4 de4 18.Rfd1 Rfd8 19.c4 f6 20.c5 Be5 21.Be5 Qe5 22.Rd8 Rd8 23.Rd1 Rd1 24.Qd1 g5 25.Nd4 Qc5+= 26.Nc6 Qc6–/+ 27.Qd8 Kg7 28.Qe7 Kg6 29.g4 a5 30.Kg2 b5 31.Qd8+= a4 32.Qg8 Kh6 33.Qf8 Kg6 34.Qg8 Kh6 35.Qf8 Kg6 36.Qb4 Qc4 37.Qf8 Qf7 38.Qb8= Qd5 39.Qe8 Qf7 40.Qe4 Kg7= 41.Qb4 1–0. Fournier,Frederic – def43rte, Active, 2008.

5.Nf3 f6 6.e4 (6.Nc3 Nc6+=) 6...Qd6 (6...d5 7.ed5 Qd5 8.Nc3+=) 7.d4 ed4 (7...Qb6 8.Bc3–/+) 8.Nd4+= Nh6 (8...Nc6!?+=) 9.Nc3–/+ Be7 (9...Qe5 10.Be2–/+) 10.Nd5+– 0–0?? (Better is 10...Bd8+–) 11.Nb5 (11.Ne7?! Qe7 12.Bc4 Kh8–/+) 11...Qc5 (11...Qe6 12.Nbc7 Qe4 13.Qe2 Qe2 14.Be2 Bd6 15.Na8 b6+–) 12.Bd4 Qc6 (12...Qd5 13.ed5 Bd8+–) 13.Ne7 Kh8 14.Nc6 dc6 15.Nc7 Rd8 16.Qh5 Rd4 17.Qe8 Ng8 18.Qc8 Na6 19.Na8 Nc5 20.Bd3! Na4 (20...Rd3 21.cd3) 21.Qb7 (21.0–0–0 h5 22.Qf8 Nc5 23.Qc5 Nh6 24.Qd4 Kh7 25.e5 f5 26.Qd7 Kg6 27.Qe6 Kh7 28.Bf5 Nf5 29.Qf5 g6 30.Rd7 Kh6 31.Qf4 g5 32.Qf6) 21...c5 22.Nc7 Nc3 23.Ne8 a5 (23...Ne7 24.Qe7 Re4 25.Be4 Ne4 26.Qg7) 24.Qg7 1–0. market (2185) – spamhead, GameColony.com, 2002.

3.a3 Nc6

4.b5 Nd4 5.e3 Nf5 =.

4.c4 d6 5.e3 (5.Nc3 Nf6=) 5...Nf6 6.Be2 Bf5 (6...e4 7.d4=) 7.d3 Qd7 8.Nf3 Be7 9.0–0 0–0 10.Nbd2 (10.b5 Nb8=) 10...a6 11.Re1 h6 (11...Bg4 12.e4=) 12.Nf1 (12.e4 Bg6+=) 12...e4 (12...Rfe8 13.Ng3=) 13.Nd4 Nd4 14.Bd4 c5 15.Bb2 ed3 (15...Be6 16.de4 Ne4 17.Qc2+=) 16.Bd3 b5 17.Ng3 (17.e4 Be6 18.Ne3 Rfc8+=) 17...Bd3 18.Qd3 d5 19.cb5 (19.cd5 c4 (worse is 19...Nd5 20.bc5 Bc5 21.Nf5+/–; worse is 19...Qd5 20.Qd5 Nd5 21.e4+/–) 20.Qc3 Qd5=) 19...c4 20.Qf5 ab5 21.Rad1 Qe6 22.e4 Ne4 23.Qd5 Qd5 24.Rd5 Bf6 25.Bf6 Nf6 ½–½. Flemming,Achim – Theel,Andreas, corr GER jub50 qJVM21, 1996.

4.d3 d5 5.e3 =+.

4.d3 Nf6 5.e4 d6 6.Nf3 Bg4 7.Be2 g6 8.0–0 Bg7 9.h3 Bd7 10.Re1 0–0 11.Nbd2 Rae8 12.Nh2 h5 13.Nb3 Nd8 14.Bf3 Ne6 15.d4 Ng5 16.de5+= de5 17.Nc5 Bc6 18.Rc1 b6=+ 19.Nd3 Nfe4 20.h4 Nf3–/+ 21.Nf3 f6 22.c4 Rd8 23.Qb3 Qd7 24.c5 Bd5 25.Qc2 Qg4 26.cb6 Nd2!! 27.Nde5 fe5 (28.Qd2 Bf3–+) 0–1. Unger,M – Deneuville,Christian, corr sok, 1996.

4.e3 b6 5.c4 (5.Bc4 Bb7 6.Nf3 e4=) 5...Bb7 6.Nf3 f6 (6...e4 7.Nd4=) 7.Nc3 Qf7 (7...e4 8.Nh4 0–0–0 9.d3 ed3 10.Bd3+=) 8.Be2 Be7 (8...0–0–0 9.d4+/–) 9.0–0 Nh6 (9...a5 10.b5 Na7 11.d4 ed4 12.ed4+/–) 10.Qc2 (10.d4 ed4 11.ed4 0–0–0+/–) 10...Nd8 (10...0–0 11.Nd5+/–) 11.Ne4 (11.d4 ed4 12.ed4 0–0+/–) 11...Ne6 (11...a5 12.Bc3+=) 12.d4 ed4 13.Bd4 (13.ed4 a5+=) 13...Nd4 14.Nd4 f5 15.Nc3 0–0 16.Nd5 Bd8 (16...c5 17.Bf3 Bd6 18.bc5 bc5 19.Rab1+=) 17.Bf3 c6 18.Nc3 (better is 18.Nf4!?+=) 18...Qc4+= 19.Be2 (19.Rac1 Bc7=) 19...Qf7 20.Rad1 d5 (better is 20...Bf6+=) 21.e4?? (better is 21.b5 cb5 22.Ndb5+= (worse is 22.Ncb5 Be7+=; worse is 22.Bb5 Rc8+=)) 21...fe4–+ 22.Ne4 Qg6 (22...de4 A deflection 23.Bc4 A pinning theme) 23.Ng3 Qc2 24.Nc2 a5 (24...Bf6!? 25.b5 cb5 26.Bb5–+) 25.b5–/+ cb5 26.Bb5 Be7 27.a4 Bc5 28.Nd4 Rf6 29.h3 Raf8 30.Bd7 (30.Nh5 Rg6–/+) 30...Ba6 31.Nh5 Rd6 32.Bb5 Bb7 33.g4 g6 34.Ng3 Nf7 35.f4 Nd8 36.f5 Nc6 37.Nge2 gf5 38.gf5 Rdf6 39.Kh2 Bd6 40.Kh1 Ne5 41.Rg1 Kh8 42.Nf4? Nf3!–+ 43.Nfe6 Ng1 44.Nf8? Bf8 45.Rg1 Bc5 46.Rd1 Bd4 47.Rd4 Rf5 48.Bd7 Rg5 49.Be6 Kg7 50.Kh2 Kf6 51.Bg4 Ke5 52.Rd2 h5 53.Bf3 Kf4 54.h4 Re5 55.Bd1 Re4 56.Rf2 Ke5 57.Rf7 Bc6 58.Re7 Kf6 59.Re4 de4 60.Kg3 Ke5 61.Bh5 Ba4 62.Bf7 Bd1 63.Kf2 a4 64.h5 Bb3 65.h6 Kf6 (65...Kf6 66.h7 Kg7–+; 65...Bf7? 66.h7 Kf4 67.h8Q e3 68.Ke1+–) 0–1. Schmitt – Ziese,Gerhard, Wuppertal, 1967.

4.e3 Nf6 5.b5 Nd8 6.Nf3 =.

4.Nf3 Nf6 =.

4.g3 Nf6 5.Bg2 d6 6.b5 Na5 7.d3 Be6?? 8.Nd2?? Rb8 9.e3 b6 10.Ne2 Bg4 11.0–0 Be2 12.Qe2 Qe6 13.c4 Qg4 14.Bf3 Qg6 15.e4 Be7 16.a4 h5 17.d4 h4 18.de5 de5 19.Be5 hg3 20.fg3 Qh6 21.Bc7 Rc8 22.Bf4 Qh7 23.Rac1 Bc5 24.Kh1 Bb4 25.e5 Nd7 26.e6 fe6 27.Qe6 Be7 28.g4 Qh3 29.Bg2 Qh4 30.Qg6 Kd8 31.Rfe1 Qf6 32.Qf6 Bf6 33.g5 Bd4 34.Re4 Bb2 35.Rc2 Nc5 36.Re2 Bd4 37.Ne4 Ne4 38.Re4 Bc5 39.Rd2 Bd6 40.Rd6 Kc7 41.Rg6 Kb7 42.Rg7 Ka8 43.Re8 Nb7 44.Rh8 Rh8 45.g6 Rf8 46.Bg3 Rd8 47.Bb7# 1–0. baudrey – marshmallow, Live Game Caissa's Web, 2004.

4.b5 Na5

5.e4 a6 6.ba6 ba6 7.Nc3 =.

5.e4 d6 6.Bc3+= Nc4?? (Better is 6...b6+=) 7.Bc4+– Nf6 8.d3 Bg4 9.Ne2 b6 (9...c6 10.bc6 bc6 11.f3+–) 10.f3 Bh5 11.d4 g6 12.g4 Bg4 13.fg4 Ng4 14.Bd5 Qf6 15.Rf1 Qh4 16.Ng3 Nh2 17.Bc6 Ke7 18.Rg1 Bh6 19.de5 de5 20.Qd7 Kf6 21.Ba8 Nf3 22.Kd1 Ng1 23.Qc6 Kg5 24.Be5 Rd8 25.Kc1 Kg4 26.Kb2 Rd2 27.Nd2 Bd2 28.Qd7 Kf3 29.Rf1 Kg2 30.Qd2 Kh3 31.Rg1 (31…Qf6 32.Qg2 Kh4 33.Rh1 Kg5 34.Nf5) 1–0. orane (2105) – A77, Live Game Caissa's Web, 2004.

5.e4 Qh4 6.Be5 d6 7.Bc3 Qe4 8.Qe2 Qe2 9.Be2 b6 10.Bf3 Bb7 11.Ba5+/– Bf3 12.Nf3 ba5 13.Nc3 Nf6 14.Rb1 d5 15.a4 Bb4 16.Ne2 0–0 17.Nfd4 Bc5 18.Nb3 Bb6= 19.d4 a6 20.ba6 Ra6 21.0–0 Re8 22.Rfe1 Ba7 23.Nf4 Kf8 24.Re8 Ke8 25.Re1 Kf8 26.Re5 c6 27.Nd3 Bb8 28.Ndc5 Ra7 29.Re1 Bd6 30.Kf1 Bh2? 31.g3+– Nd7 32.Nd7 Rd7 33.Kg2 Bg3 34.fg3 Ra7 35.Kf3 g6 36.Nc5 Kg7 37.Re8 Kf6 38.Rc8 h5 39.Rc6 Ke7 40.Rb6 h4 41.gh4 f6 42.Re6 Kf8 43.Rf6 Rf7 44.Ne6 Ke7 (44...Ke8 45.Rf7 Kf7 46.Nc7+–) 1–0. Fritz 8 – Doctor? 3.0, 2004.

4.b5 Nd8

5.Nc3 Nf6 =.

5.e3 d6 6.Nc3 Nf6 7.Nf3 Bg4 (7...d5 8.Be2=) 8.Be2 Qd7 (8...Ne6 9.h3 Bh5 10.0–0=) 9.0–0 Be7 10.h3 (10.e4 Bf3 11.Bf3 Ne6=) 10...Bf5 (10...Bf3 11.Bf3 d5 12.d3=) 11.Nh2 (11.d4 e4 12.Nh4 d5=) 11...0–0 12.g4 Be6 13.g5 (better is 13.f4!? ef4 14.ef4=) 13...Nd5–/+ 14.h4 Nc3 15.Bc3 Bh3 16.Bg4 (16.Re1 f6–/+) 16...Bg4 17.Ng4 Qb5 18.Nf6?? (better is 18.f4–/+) 18...gf6–+ 19.gf6 Bf6 20.Qg4 (20.Kh2 Kh8–+) 20...Bg7 (20...Kh8 21.Qh5–+) 21.Kh2 (21.Rab1 Qa6–+) 21...f5 22.Qg3 Qe2 (22...f4 23.ef4 Rf4 24.Rg1–+) 23.Rg1 Qg4 (23...Ne6 24.Rab1–+) 24.f4 Qg3 25.Rg3 Rf7 (25...Kh8!? 26.Rag1 Ne6 27.d3–+) 26.fe5 Kf8 27.Rag1 Be5 28.Be5 de5 29.Rg8 Ke7 30.Rh8 Rf8 31.Rg7 Nf7 32.Rhh7 Rad8 33.d3 Rd6 34.h5 Rc6 35.c4 Rd6 36.Rg3 Rd3 37.h6 Rd6 38.Rgg7 Rf6 39.Kg2 Kd6 40.Kf3 Kc5 (40...Kc5 41.Ke2 f4–+; 40...Nh6 41.Rd7 Kc5 42.Rc7 Rc6 43.Rc6 bc6 44.Rh6–+) 0–1. Langguth,Wilhelm – Ziese,Gerhard, corr, 1985.

5.e4 Nf6 6.Nc3 a6 7.Nf3 +=.

5.e4 Nf6 6.Nc3 Qe6 7.d4 ed4 8.Qd4 b6 9.Nf3 Bc5 10.Qa4 Bb7 11.Bd3 0–0 12.0–0 Re8 13.e5 Bf3 14.ef6 Bb7 15.fg7 h5 16.Qh4 Qh6 17.Rfe1 Re1 18.Re1 Ne6 19.Ne4 Be4 20.Qe4 Re8 21.Rd1 a6 22.ba6 c6 23.c4 Ra8 24.Bc2 Ra7 25.Qe5 d6 26.Rd6 Bd6 27.Qd6 Qf4 28.Qc6 Qb8 29.Qe4 Ng5 30.Qe3 Qd8 31.h4 Ne6 32.Qh6 f5 33.Qe6 Rf7 34.Qh6 Rd7 1–0. Fritz 5.32 – Comet B50, 2004.

5.e4 Nf6 6.Nc3 Qe6 7.d4 ed4= 8.Qd4 b6 9.Nf3 Bc5 10.Qa4 Bb7 11.Bd3= 0–0 12.0–0+= Qg4 13.Rae1 (13.h3 Qh5 14.Rae1+=) 13...d6? (better is 13...Ne6!? 14.h3 Qh5+=) 14.h3+/– Qh5 15.Ne2 Ne6 16.Ng3 Qg6 17.Nf5 Qh5 (17...Kh8 18.N3h4 Qh5 19.e5+–) 18.Bc1 a6 19.ba6 Rfe8? (19...Ra6 20.Ba6 Ra8+–) 20.Qe8!+– Re8 (20...Re8 21.ab7 Passed pawn; 20...Ne8 21.Ne7 Double attack (21.ab7 Passed pawn)) 21.ab7 g6 (21...Nd7 22.e5 f6 23.ef6 gf6 24.Bb5+–) 22.Nh6 (22.Ng3 Bf2 23.Rf2 Qc5+–) 22...Kg7 23.e5 Ng8 24.ed6 Bd6 (24...cd6 25.Nf7! Qd5+– (25...Kf7?? 26.Ng5 Ng5 27.Re8 Nh3 28.gh3 Ke8 29.b8Q Kf7 30.Re1+–)) 25.Nf7! Kf7 26.Re6! Re6 (26...Re6 27.Ng5 Double attack (27.Ng5 Decoy); 26...Ke6) 27.b8Q Re8 (27...Qd5 28.Ng5 Kg7 29.c4+–) 28.Ng5 Qg5 29.Bc4 (29.Bc4 Kf8 30.Qe8 (30.Bg5?! Rb8 31.a4 Re8+–) 30...Ke8 31.Bg5+–; 29.Bg5?! Rb8 30.a4 Nf6+–) 1–0. Woelfelschneider,Peter – Pleschke,Helmut, internet, 2000.

4.c4 f5

5.e3 Nf6 6.b5!

5.e3 Nf6 6.Nc3 d6 7.Nf3 (7.d4 ed4 8.Nd5 Qf7 9.Nf6 Qf6=) 7...Be6 (7...Qd7 8.Nd5=) 8.d4+= ed4 9.Nd4 (worse is 9.ed4 Bc4 10.Be2 a5+=) 9...Nd4 10.Qd4 (worse is 10.ed4 Bc4 11.Be2 Ne4–/+) 10...c5 11.Qf4 Rg8 12.bc5 dc5 13.Nd5 Nd5 14.cd5 Bd7 15.Rd1 (15.Bc4 Qe4 16.Qe4 fe4+/–) 15...Qd6 (15...b5 16.Bd3 Qd6 17.Qf3+/–) 16.Be5+/– Qg6 17.Qf3 (17.d6 b5+/–) 17...b5 18.d6 Rc8 19.Qb7 c4 20.Qa7 Qe6 21.Qd4 g5 22.Be2 g4 23.h3 h5 24.hg4 hg4 25.Rh7 Rg6 26.Bf4 Rc6 (26...Ra8 27.Qc3+/–) 27.Rb1 Rc8 28.a4 Qe4 (28...Qf6 29.Qf6 Rf6 30.ab5+–) 29.Qe4 fe4 30.ab5 c3 31.b6 c2 32.Rc1 Rb8 33.Rc2 Rb6 34.Ra2 Rb8 35.Rh8 Rf6 36.Bd1 Rc8 37.Ra5 Be6 38.Rh7 Rf4 39.Re5 Bd6 40.Re6 Kf8 41.ef4 Bb4 42.Ke2 (42.Ke2 Rd8 43.Re4+–) 1–0. Armstrong,Alan – Milligan,Bernard, corr SCCA Ch, 2000.

5.e3 Nf6 6.Nf3 e4 7.Nd4 Nd4 8.Bd4 d6 (8...a5 9.b5=) 9.c5 (9.d3 a5=) 9...d5 (9...Be6 10.cd6 Qd6 11.d3=) 10.Nc3+= c6 11.Qb3 (11.Be2 Qf7+=) 11...Qf7 12.Be2 Be7 13.f4 (13.0–0 0–0=) 13...ef3 (13...Qg6 14.0–0=) 14.Bf3+= 0–0 15.0–0 Be6 16.d3 (16.Qa4 Qe8+=) 16...Qg6 (16...Ne4 17.Rad1= (17.Ne4? de4 18.Qc3 ef3–+; 17.de4?! de4 18.Qd1 ef3=; worse is 17.Be4 de4 18.Qb2 ed3–/+)) 17.Qc2 (17.Ne2 Qg5+=) 17...Rae8 18.Rae1 Bc8 (18...Ng4 19.Qa4 Bh4 20.Rd1=) 19.a4 Bd8 20.Ne2 Bc7 21.Nf4 Qh6 22.g3 Rf7 23.Rf2 (23.b5 Rfe7+=) 23...Rfe7 (23...Ng4 24.Bg4 fg4 25.Ref1=) 24.Qb2 (24.Qc3 Bf4 25.gf4 Ng4 26.Bg4 fg4=) 24...Be5 (24...Bf4 25.gf4 Ng4 26.Rfe2=) 25.Ng2 (25.Be5 Re5 26.Qd4 Qg5+=) 25...Qg5 26.Be5 Re5 Can e3 get defended? 27.Qd4 (27.Qc3 Ng4 28.Bg4 Qg4=) 27...Qh6 (27...Bd7 28.Nf4=) 28.Bd1 g5 29.Ref1 Qg6 30.Kh1 Bd7 31.a5 a6 32.Be2 R8e7 33.Bd1 (33.Kg1 Re8+=) 33...Ne8 (33...Re8!?=) 34.Rf3 Nf6 35.R3f2 (35.Kg1 Ng4+=) 35...h5 (35...Re8!?=) 36.h4 (36.h3!?+/–) ½–½. Leckebusch – Ziese,Gerhard, Wuppertal, 1977.

4.c4 Nf6

5.b5 Nd8 6.Nf3 =.

5.Nc3 =.

4.e4 Nf6

5.Nc3 Nd4 6.Bd3 a5 7.ba5 Ra5 8.Nge2 c6 9.0–0 Ne6 10.f4 d6 (10...b5 11.a4 b4 12.Na2+=) 11.Bc4 Qc7 (11...b5 12.Bb3=) 12.Bb3 Be7 13.d3 Nc5 14.Rb1 Nb3 (14...b5 15.Ba2+=) 15.cb3= 0–0 16.b4 Ra8 17.d4 ef4 18.Nf4 (18.Rc1 Bg4=) 18…d5 (18...b5 19.Qd3=) ½–½. Woschkat,Karl_Heinz – Zaremba,Artur, CiF, 1993.

5.Nc3 d6 6.h3 Be6 7.d3 0–0–0 8.Nf3 g6 9.Be2 Bg7 10.Qd2 Nd4 11.0–0–0 Ne2 12.Qe2 Nd7 13.Qe3 Nb6 14.a4 d5 15.ed5 Nd5 16.Nd5 Bd5 17.b5 Bf3 18.Qf3 Kb8 19.Kd2?? e4–+ 20.Bg7 ef3 21.Bh8 Qg5 22.Kc3 fg2 23.Rhg1 Rh8 24.Rde1 0–1. Stiller – Klaus Behrmann (2015), ChessWorld.net, 2003.

4.Nf3 e4

5.Nd4 Nd4 6.Bd4 d6 7.e3 Nf6 8.d3 Bg4 9.Be2 h5 10.h3 (10.h3 Be2 11.Qe2+=) 1–0. Fournier,Frederic (2115) – MATADOR1 (1700), Active, 2005.

5.Nd4 Nf6 6.e3 Nd4 7.Bd4 a5 8.Nc3 ab4 9.ab4 Ra1 10.Qa1 Qe6 11.Nb5+/– Kd8 12.Na7+– Nd5 13.Bc4 Ne3 14.fe3 Qc4 15.Bg7 Rg8 16.Bf8 Rf8 17.Qf6 Ke8 18.c3 Qa6 19.Qa6 ba6 20.Nc8 Kd8 21.Na7 Ke7 22.Rf1 Ra8 23.Rf4 Ra7 24.Re4 Kf6 25.Rf4 Kg7 26.Rf5 Kg6 27.e4 Rb7 28.d4 Rb5 29.Rb5 ab5 30.Ke2 Kg5 31.Ke3 f6 32.h3 f5 33.e5 c6 34.d5 cd5 35.Kd4 Kf4 36.Kd5 Kg3 37.Kd6 Kg2 38.Kd7 f4 39.e6 f3 40.e7 f2 41.e8Q f1Q 42.Qe4 Kh3 43.Qh7 Kg3 44.Qg6 Kh2 45.Qh5 Kg2 46.Kc6 Qf6 47.Kb5 Qc3 48.Qc5 Qd3 49.Kc6 Qa6 50.Kc7 Kf1 51.b5 Qa5 52.Kb7 Ke2 53.Qc6 Kd3 54.b6 Ke3 55.Qd6 Ke4 56.Kc7 Ke3 57.Kb8 Qh5 58.b7 Qf7 59.Kc8 Qf5 60.Kd8 Qa5 61.Kd7 Qa4 62.Kc7 Qc4 63.Kd8 Qg8 1–0. Fritz 8 – Comet B50, 2004.

3.a3 d5

4.Nc3 Nf6 5.e3 e4 6.f3 ef3 7.Nf3 Nc6 8.Bb5 g6?? 9.0–0?? a6?? 10.Bd3 Bh6? 11.Re1?? 0–0+= 12.e4 d4 13.Nd5 Qd6 14.Bd4?? Ng4?? 15.Bc5+– Qd8 16.Bf8 Kf8 17.c3 Be6 18.Bc4 Nce5 19.Ne5 Ne5 20.d3 Bg4? 21.Qb3?? b5= 22.d4 Nc4–+ 23.h3 Nd2?? 24.Qc2= (24...Be6 25.Ne3=). mwojo (1745) – pauldopson, net–chess.com, 2004.

4.c4 dc4=+ 5.e3 Be6 6.Nc3 (6.Be5 a5=) 6...a6 7.Qc2 b5 (7...Nf6 8.Nf3 Nbd7 9.Ne4=+) 8.g3 (8.a4!?=) 8...Nf6 9.Bg2 Ra7 10.Nge2 Bg4 (10...c5 11.bc5 Qc5 12.f4–/+) 11.0–0 (11.f4 Nbd7 12.h3 Be2 13.Ne2 ef4 14.Nf4 Qd6=) 11...c5–/+ 12.h3 Be2 13.Ne2 Nbd7 (13...Rd7 14.bc5 Qc5 15.f4=+) 14.Rfe1 (14.f4 e4=+) 14...g6 (14...cb4 15.ab4 Qb4 16.d4=+) 15.d3 cd3=+ 16.Qd3 c4 17.Qc3 Bg7 18.Rad1 0–0=+ 19.Rd2 e4 20.g4 Rc7–/+ 21.g5? Nh5 22.Qc2 Bb2 23.Qb2 Qg5 24.Kh2 f5 25.Nd4 Re8 26.Red1 c3 27.Qc1? Qh4 28.Rc2 Ne5 29.Kg1 Nd3 30.Qa1 f4 31.Rf1 f3 32.Bh1 Ne5 33.Rc3 Rc3 34.Qc3 Ng3! 35.Re1 Nh1 0–1. Davis,David – Doeh,Cole Adam, internet, 1999.

4.d4 ed4 5.Nf3 Nf6 6.Nd4 g6 7.c4 dc4 8.e3 Be6? 9.Ne6+– Qe6 10.Bc4! Qf5 11.Bd3 Qg4?? 12.Qg4 Ng4 13.Bh8 Nc6 14.Be2 f5 15.b5 Nce5 16.h3 Nh6 17.Be5 0–0–0 18.Nd2 Nf7 19.Bd4 c5 20.bc6 bc6 21.Ba7 Kb7 22.Bd4 Ra8 23.Nc4 Nd6 24.Rb1 Kc7 25.Be5 h5 26.Rd1 Rd8 27.g4 fg4 28.hg4 (28...hg4 29.Nd6 Rd6 30.Rh7 Kb6 31.Bd6 Bd6 32.Rd6+–) 1–0. marekt – TiagoWehmuth, ChessWorld.net, 2004.

4.e3 a6 5.Nf3 Nc6 6.Be2 Nf6 7.0–0 Qd6 8.b5 ab5 9.Bb5 Be7 10.Be5+/– Qd7 11.d4 0–0 12.Nbd2 Qd8 13.c4 dc4 14.Nc4 Ne5 15.de5 Ne4 16.Qc1 b6?? 17.Bc6 Bf5 18.Ba8 Qa8 19.Nd4 f6?? 20.Nf5 Bc5 21.Rd1 fe5 22.Ng3 Nf2 23.Rf1 Ng4 24.Rf8 Qf8 25.Qd2 Qf7 26.Qd8 Bf8 27.Rf1 Qe7 28.Qd5 Kh8 29.h3 Nf6 30.Ne5 Nd5–+ 31.Nd7 Qd7 32.Rf8 1–0. wlittle (2300) – austen (1840), net–chess.com, 2003.

4.e3 b5 5.Nf3 Bg4 (5...e4!? 6.Ne5 a6=) 6.Bb5+/– c6 7.Bf1 e4 8.h3 Bf3 9.gf3 f5 10.fe4 Qe4 11.Rg1 Ne7 12.Qh5 g6 13.Bd3 gh5? 14.Be4 Bg7 15.Bg7 Rg8 16.Bf3 Kf7 17.Bh5 Ng6 18.Bd4 Nd7 19.f4 Nf6 20.Be2 Nh4 21.Rg8 Ng8 22.Nc3 Ne7 23.Rb1 Rg8 24.Ba7 Ra8 25.Bc5 Ra3 26.b5 Ra2 27.Na2 Ng2 28.Kf2 Nh4 29.b6 1–0. Klaus Behrmann (2250) – Jan van Dijk, ChessWorld.net, 2003.

4.e3 b6 5.c4 Nf6 6.d3 Bb7 7.Nf3 Nbd7 8.Nfd2 (8.cd5 Nd5 9.Qc2 Rc8=) 8...c5 9.b5 d4 10.e4 Qd6 11.Nf3 h6 12.Nbd2 Be7 13.Nh4 g5 (Better is 13...g6!?=+) 14.Nf5+= Qc7 15.Ne7 (15.Be2 Bd6+=) 15...Ke7= 16.h3 Ne8 17.Nf3 Nd6 18.h4 Raf8 19.hg5+= hg5 20.Rh8 Rh8 21.Ng5 f6 22.Nh3 f5 23.f3 Kd8 24.Bc1 Nf6 25.Bg5+/– Qg7 26.Bf6 Qf6+= 27.Be2 Qh4 28.Kd2 Qg3=+ 29.Qf1 Rg8 30.a4 Qh4 31.a5= Qh6 32.Kc2 fe4 33.de4 Qe3 34.Bd3 Nc4?? 35.Bc4+– Qc3 36.Kb1 Qd2?? 37.Nf2 Rg2 38.Qg2 Qb4 39.Kc1 Qc4+/– 40.Kd1 Qb3= 41.Ke1 Qc3–/+ 42.Kf1?? (42...Qa1 43.Ke2 Qa2 44.Kd1 Qa4 45.Kc1 Qa1 46.Kc2 Qc3 47.Kd1 Qb3 48.Kc1 Qe3 49.Kc2–+; 42.Ke2 Qa1 43.Qg8 Kd7 44.Nd3+=) 1–0. maxii – destoyer1, Live Game Caissa's Web, 2004.

4.e3 f5 5.c4 c6 6.Nf3 Nf6 7.Ne5 Be6 8.d3 g6 9.Nd2 Bg7 10.Be2 0–0 11.0–0 Nbd7 12.Ndf3 Rad8 13.Qc2 dc4 14.Nc4 Bd5 15.Na5 Nb8 16.Ne5 Ne8 17.Nec4 Nf6 18.Rfe1 b6 19.Nb3 Nbd7 20.Nd4 Rfe8 21.Bf3 Rc8 22.Qe2 Bc4 23.dc4 Ne5 24.b5 cb5 25.cb5 Ne4 26.Rac1 Qf6 27.Be4 fe4 28.Nc6 Qg5 29.Be5 Be5 30.Na7 Ra8 31.Qa2 Kh8 32.Nc6 Bg7 33.Qb3 Rf8 1–0. Roggensack_Hanspach,Peter – Zylla,Johannes, corr SOK–92–79, 1992. <ε>4.e3 Bf5 5.Nf3 Nd7 6.Be2 g6 7.d3 Bg7 8.h3 Ngf6 9.e4 Be6 10.c4 0–0 11.Nc3 Nh5 12.g3 c6 13.Bc1 f5 14.Bg5 Qe8 15.ef5 Bf5 16.g4 (better is 16.Nh4!? e4 17.d4=) 16...e4–/+ 17.de4?? (better is 17.Ne4 Be4 18.de4 Ba1 19.Qa1 Qe4 20.Qd4 Qb1 21.Qd1 Qd1 22.Kd1–+) 17...Bc3–+ 18.Kf1 Be4 19.Rc1 Bf6 20.gh5 (20.Bf6 Nhf6 (20...Rf6?! 21.gh5 Ne5 22.Ne5 Bh1 23.Ng4–+; 20...Ndf6?! 21.gh5 Nh5 22.Rg1–+) 21.Qd6 Ng4 22.hg4 Bf3 (22...Rf3?! 23.Bf3 Bf3 24.Rh3 Bg4 25.Re3–+) 23.Bf3 Rf3–+) 20...Bf3 (20...Bg5!? 21.Rc3–+) 21.Bf3 Bg5 22.hg6 (22.Rc3 Qe5 23.Qc2 Qf6–+) 22...Qg6 (better is 22...Bc1 23.gh7 Kh8–+) 23.Rc3 Ne5 24.Bh5 Qf5 25.Qe1 (25.Rh2–+) 25...Bh4 26.Rg1 (26.Bg4 Qf2 27.Qf2 Rf2 28.Kg1 Raf8–+) 26...Kh8 27.Bg4 (27.Rg2 Qh5 28.Qe2 Nf3–+) 27...Qf2 28.Qf2 Rf2 29.Ke1 Rc2 (29...Rc2 30.Rcg3 Rc3–+) 0–1. Fournier,Frederic (1685) – LucasGrijander (1655), Active, 2006.

4.Nf3 Be6 5.Ne5+= Bf5 6.e3+/– Qf6 7.c4 Nc6 8.d4 Ne5 9.de5+– Qe6 10.cd5 Qb6 11.Nc3 a5 12.Na4 (12...Qg6 13.Nc5 ab4 14.ab4 Ra1 15.Qa1+–) 1–0. Wall,Bill – Autumn, internet, 2003.

4.d4 e4

5.Nc3 Be6 6.e3 f5 7.Nge2 Nf6 8.Nf4 c6 9.Be2 Nbd7 10.0–0 g6 11.b5 Bg7 12.a4 0–0 13.Ba3+– Qf7 14.Bf8 Qf8?? (better is 14...Nf8 15.f3 ef3 16.Rf3 Bd7+/–) 1–0. Trkn – guest1421, ICC, 2004.

5.Nc3 Nf6=+ 6.e3 a5 7.b5 b6 (7...Qd8 8.Na4=+) 8.Be2 Bd7 9.h3 (9.Na4 Qe6=) 9...c6 10.bc6 Bc6 11.Rb1 Nbd7 12.h4 Rb8 13.Nh3 b5 14.Bc1 b4 15.ab4 ab4 16.Na2 Qd8 17.Bd2 Qa5 18.Ra1 Ba4 19.Nc1 Nb6 20.Nf4 Nc4= 21.Nb3 Nd2?? 22.Na5+– b3 23.Ra4 b2 24.Kd2 Bb4 25.Rb4 Rb4 26.Nb3 1–0. mtra – keighley, internet, 2002.

5.Nc3 Nf6 6.e3 Bd7 7.Nge2 Nc6 8.Nf4 Be6 9.Bb5 Qd7 10.Ne6 Qe6 11.0–0 Bd6 12.f4 (12.Na4 0–0=) 12...Qf5 (12...0–0 13.Bc6 bc6 14.Na4=+) 13.h3 0–0–0 (13...0–0 14.Na4=+) 14.Bc6= bc6 15.Qe2 Kd7 16.Qa6 Ra8 17.Na4 g5 18.c4 gf4 19.ef4 Rhg8–/+ 20.Kh1? e3 21.b5–/+ Ng4?? 22.Qc6+– Ke6 23.Qd5 Kf6? 24.Qf5 Kf5 25.hg4 Kg4 26.Nc3 Bf4 27.Nd5 Bh6 28.Nf6 Kg3 29.Rf3 Kh4+– 30.Rh3 Kg5 31.Ng8 Re8 32.Nh6 e2 33.Nf7 Kf6 34.Ne5 Ke6 35.Re1 1–0. Tr – SKINDOG9009, itsyourturn.com, 2001.

5.e3 a5 6.ba5 Nf6=.

5.e3 c6 6.Nc3 b5 7.Qd2 g6 8.0–0–0 Bg4 9.Be2 Nf6 10.Bg4 Ng4 11.h3 Nf6 12.Nge2 Bh6 13.Rde1 0–0 14.g4 a5 15.ba5 Ra5?? 16.Nd5!+/– Qd8?? 17.Nf6+– Qf6 18.Qa5 Qf2 19.Nc3 Be3 20.Kb1 Bd4 21.Ne4 Be3 22.Nf2 Bf2 23.Rd1 Re8 24.Rd8 Kf8 25.Re8 Ke8 26.Qc7 (26...Bd4 27.Re1 Kf8 28.Bd4 f6 29.Bc5 Kg8 30.Re8; 26.Bf6 Kd7 27.Qd8 Ke6 28.Qe7 Kd5 29.Rd1 Bd4 30.Rd4) 1–0. minn (2000) – pauldopson, net–chess.com, 2003.

5.e3 Nc6 6.b5 Nd8 7.c4 Nf6 8.cd5 Nd5 9.Nd2 Bf5 10.Qb3 Nb6 11.Ne2 Be6 12.Qc2 f5 13.g4 fg4 14.Bg2 Qd7 15.Nc3 a6 16.Qe4 Be7 17.ba6 Ra6 18.Bf1 Ra5 19.h3 gh3–/+ 20.Qf4 Bd6 21.Qh4 Qc6 22.Nce4 Be7 23.Qg3 Qc2 24.Bc3 Ra3 25.Ra3 Qc1 26.Ke2 Qa3 27.Qg7 Rf8 28.Bh3 Nd5 29.Be6 Ne6 30.Qe5 Qa6 31.Ke1 Nc3 32.Nc3 Bb4 33.Rh6 Qa1 34.Nd1 Bd2 35.Kd2 Qa2 36.Ke1 Kd7 37.Rh7 Kd8 38.Qb5 Kc8 39.d5 Rd8 40.Rc7?? Nc7–+ 41.Qe2 Qe2 42.Ke2 Nd5 43.e4 0–1. Comet B25 – Comet B50, 2004.

5.e3 Be6 6.Ne2 Nf6 7.Nf4 Nbd7 8.Nd2 b6 9.Bb5 g5 10.Ne6 fe6 11.c4+/– a6 12.Bc6 Rb8 13.c5 Kd8 14.0–0 h5 15.cb6 Rb6+= 16.Bd7 Qd7 17.Qc2 Bd6 18.Rac1 Ke7 19.f3+= ef3 20.Nf3 g4? 21.Ng5?? h4?? 22.Qg6+– Rf8 23.Qg7 Kd8 24.Rf6?? Rf6?? 25.Qf6+– Kc8 26.Ne6 Kb7 27.Qf5 Bh2 28.Kh2 Re6 29.Qg4 1–0. mwojo (1745) – supertimchan (2075), net–chess.com, 2004.

5.e3 f5 6.c4 c6 7.c5 Nf6 8.h4 h5 9.Nh3+= Qc7 10.Nf4 Qf7 11.g3 Nbd7 12.Nd2+= Ng4 13.Be2 Ndf6 14.Qb3 a6 15.a4 g6 16.Kf1 Bh6= 17.b5 ab5 18.ab5 Ra1 19.Ba1 0–0 20.b6 g5 21.hg5+/– Bg5 22.Nh3 Bh6 23.Ke1 Qg7 24.Nf1 Nd7 25.Bc3 Ndf6 26.Rg1 Kh7 27.Bd2 Be6 28.Nf4 Bf4 29.gf4 h4 30.f3 ef3+= 31.Bf3 h3 32.Rh1 h2? 33.Nh2+– Kg6 (34.Qa4 Kf7+/–; 33...Kg8 34.Rg1+/–). dannyboy238 – shoulders, ChessWorld.net, 2007.

5.e3 Nf6 6.Bb5 c6 7.Ba4 b5 8.Bb3 Bg4 9.f3? ef3–+ 10.gf3 Qe3 11.Qe2 Qe6?? 12.fg4+/– Ng4 13.Qe6 fe6 14.Nf3 Bd6 15.Ng5 Nh2 16.Ne6 Na6 17.Nd2 Ke7 18.Nc5 Bg3 19.Kd1 Rhf8?? 20.c3 Nc5+= 21.dc5 Rf2 22.Re1 Kd7+= (23.Rg1 Be5+=). challl – pauldopson, net–chess.com, 2004.

5.e3 Nf6 6.c4 a5 7.cd5 ab4 8.Qb3 Qd7 9.f3 ba3 10.fe4 Ne4 11.Na3 Qe7 12.Bb5 Nd7 13.Nf3 Qb4 14.Qb4 Bb4 15.Kf1 Ra5 16.Bd3 f5 17.g4 Nb6 18.Ne5 Rf8 19.Nc2 Ra1 20.Ba1 Bd6 21.Rg1 Nd5 22.gf5 Bf5 23.Ke1 g6 24.Rf1 c6 25.Bb2 b5 26.Nc6 Bh2 27.Ne5 Bg3 28.Kd1 b4 29.Bb5 Ke7 30.Kc1 Ndc3 31.Bc6 Na2 32.Kd1 Bg4!! 33.Ng4 Rf1 34.Ke2 Rb1 35.Be4 Rb2 36.Kf3 Nc3 37.Na1 Ne4 38.Ke4 b3 39.Kf3 Rf2! 40.Nf2 b2 41.Nb3 b1Q 42.Nd2 Qg1 43.Nh3 (43.Nfe4 h5 44.Ng3 Qd1 45.Ne2 Qd2–+) 0–1. Fritz 5.32 – Fritz 6, 2004.

5.e3 Nf6 6.c4 Be6 7.cd5 Bd5 8.Nc3 Bc6 9.Nge2 Qd6 10.Qc2 Ng4? 11.b5+– Bd5 12.Nf4 Qf6 13.Ncd5 Nd7 14.Qe4 (14...Be7 15.Nf6 Ngf6 16.Qb7+–) 1–0. Pierred (2270) – Snakemaster2, Rated game, 5m + 0s, 2005.

5.e3 Nf6 6.Ne2 g6 7.Ng3 Bg7 8.Bb5 c6 9.Be2 Be6 10.Nd2 Nbd7 11.c4 h5 12.c5 h4 13.Ngf1 h3 14.g3 Nf8 15.Nb3 N8h7 16.a4 Ng5 17.b5 Bh6 18.bc6 bc6 19.Na5 Bd7 20.Qb3 0–0 21.Qb7 Rfb8 22.Nc6= Qe8? 23.Qb8?? Rb8–+ 24.Nb8 Qb8 25.Bc3 Nf3 26.Bf3 ef3 27.a5?? Qb5 28.Nd2 Qe2 0–1. Stiller (2265) – nbh999 (2130), ChessWorld.net, 2003.

4.e3 a5

5.b5 b6 6.c4 dc4 7.Bc4 Bb7 +=.

5.b5 b6 6.d4 Nd7 (Better is 6...e4=) 7.de5+– Bb7 8.Nf3 f6 9.Nc3 Qf7 10.ef6 gf6 (10...Ngf6!? 11.Ng5 Qe7+/–) 11.Nd4 Ne7 12.Qd2 Ne5 13.0–0–0 Nc4 14.Bc4 dc4 15.e4 Rd8 16.Qe3 Rg8 17.g3 Nc8 18.Nd5 Bc5 19.Rhe1 Bd5 20.ed5 Ne7 21.Qc3 Rd5 22.Qc4 Rd4 23.Rd4 Bd4 24.Qd4 Rg6 25.Qf4 Kd8 26.Rd1 Ke8 27.Qc7 Qe6 28.a4 Rg5 29.Bd4 (29...Kf7 30.Qb6+–) 1–0. marekt – ralph14, ChessWorld.net, 2004.

5.b5 b6 6.h3 g6 7.Nf3 Bg7 8.d4 e4 9.Nfd2 f5 10.Nc3 Be6 11.Na4 Nh6 12.c4+= dc4 13.Bc4 Bc4 14.Nc4 0–0 15.0–0 Nd7 16.Qb3 Kh8 17.d5 Bb2 18.Qb2 Qf6 19.Qc2 Rae8 20.Rfd1 f4 21.d6+/– f3? 22.g3?? Qf5 23.Qc3 Kg8–/+ 24.Kh2 Ng4?? 25.hg4+– Qg4 26.Rh1 Rf5 27.Kg1+– Rh5 28.Rh5 Qh5 29.Nd2 Qh3 30.Qc4 Kg7? 31.Qf1+– Qf1 32.Kf1 cd6 33.Nc3 Nf6+/– 34.Rd1 d5 35.Nb3 Re5 36.Ke1 Kf7 37.Nd4 h5 38.Nc6 Rg5 39.Kd2 h4 40.gh4+– Rg2 41.Ke1?? Rh2?? 42.Nd5?? Rh1=+ 43.Kd2 Rd1 44.Kd1 Nd5 45.Kd2 Ke6 46.a4 Kf5 47.Nd4 Kg4–/+ 48.Ne6 Kh4 0–1. gtate (1980) – somporn (2140), net–chess.com, 2005.

5.b5 Nd7 6.d4 e4 7.a4 Qh4–/+ 8.Nd2 Ndf6 9.g3= Qg5 10.c4 Bb4 11.h4 ½–½. Klaus Behrmann (1990) – Alissa (2435), ChessWorld.net, 2003.

5.b5 Nf6 6.a4 Bf5 7.d3 Qe6 8.Nd2 Bd6 9.Ngf3 e4 (Better is 9...0–0!?=+) 10.Nd4+= Qe5 11.Rb1 Nbd7 12.N2b3 Nb6 13.Nf5 Qf5 14.Nd4 Qg6 15.Ra1 0–0 16.g3 Nfd7 17.Bh3 f5 18.Nb3 Bb4 19.Kf1 Bd6 20.Bc3 Be5 1–0. waycoolguy (1905) – Alissa, ChessWorld.net, 2003.

5.Nf3 e4 6.Nd4 Nf6 =.

5.Nf3 e4 6.Ne5 ab4 7.ab4 Ra1 8.Ba1 Nh6 9.c4? f6–+ 10.Qh5 Kd8 11.cd5 Qb4 12.Nc3 Qa3 13.Qd1 fe5 14.Ne4 Bf5 15.Ng5 Qe7 16.h4 Na6 17.Bb5 Nb4 18.e4 Qc5 19.Be2 Nc2 20.Kf1 Na1 21.ef5 Qa5 22.Qb1 Bb4 23.Ne6 Ke7 24.Ng7 Kf6 25.Nh5 Kf7 26.Qe4 Bd6 27.Qb1 Qa4 28.Qb7 Nc2 29.Qb2 Ra8 30.Qc1 Qa1 31.Qd1 Nf5 32.g3 Qa2 33.Bf3 Qb3 34.Kg2 Ra1 35.Qa1 Na1 36.Ra1 Kg6 37.Rc1 Nd4 38.Rc3 Qb1 39.Bg4 Qe4 40.f3 Qe2 41.Kh3 0–1. Comet B50 – Fritz 8, 2004.

5.Nf3 e4 6.Ne5 Nh6 7.ba5 f6–/+ 8.Qh5 Kd8 9.Ng6 hg6 10.Qd5 Qd7 11.Qe4 Nf5 12.Bc3 Bd6 13.h3 Na6 14.Be2 Nc5 15.Qf3 Qa4 16.g4 Bd7 17.gf5 Bc6 18.Qg4 Bh1 19.Qg6 Qh4 20.Qg1 Bc6 21.Qg7 Ne4 22.Kd1 Bd5 23.Bb5 Be7 24.Qg1 Qh3 25.Bb4 Qf5 26.Be7 Ke7 27.Kc1 Nf2 28.Kb2 Rh1 29.Qg7 0–1. Comet B50 – Fritz 6, 2004.

5.Nh3 Nf6 6.b5 Bf5 7.d4 ed4 8.Bd4 c5 9.bc6 bc6 10.Nc3 Bg4 11.Be2 Bh3 12.gh3 Nbd7 13.Bg4 Ng4 14.hg4 Rb8 15.0–0 h5 16.e4 hg4 17.ed5 Qd6 18.Re1 Be7 19.Qg4 Qh2 20.Kf1 cd5 21.Rad1 Qh1 22.Ke2 Qh5 23.Qh5 Rh5 24.Bg7 d4 25.Rd4 Ba3 26.Rd5 Rd5 27.Nd5 Bd6 28.Kd2 Kd8 29.Re4 Nc5 30.Re3 a4 31.Bf6 Kd7 32.c4 Rg8 33.Ke2 Rg2 34.Rh3 Rg4 35.f4 Rg2 36.Kf3 Rd2 37.Rh7 Rd3 38.Ke2 Ke6 39.Rh6 Kd7 40.Rh7 Ra3 41.Rf7+/– Ke6 42.Ra7 Ra2 43.Kf3 a3 44.Be5 Rh2 45.Bd6 Kd6 46.Kg4 a2 47.Nb4 Rb2 48.Na2 Rc2 49.Ra3 Rc4 50.Nc3 Ke6 51.Nb5 Ne4 52.Ra6 Ke7 53.Rh6 Nf6 54.Kg5 Rc6 55.Nd4 Ne4+= 56.Kg4 Rh6 57.Nf5 Kf7 58.Nh6 Kg6 59.Nf5 Nf6 60.Kh4 Kf5 61.Kh3 ½–½. Crafty 19.01 – Fritz 5.32, 2004.

5.Nh3 Bh3 6.gh3 ab4 7.ab4 Ra1 8.Ba1 Nf6 9.Bg2 Nbd7 10.c3 c6 11.0–0 e4 12.d3 Qe5 13.de4 Ne4 14.Qd4 Bd6 15.Qe5 Ne5 16.Rd1 f5 17.f3 Nf6 18.e4 f4 19.ed5 cd5 20.Na3 Ke7 21.Bb2 Ra8 22.h4 b6 23.Bc1 Ng6 24.Nb5 Ra2 25.Re1 Be5 26.Kf1 Kd7 27.h5 Nh5 28.Rd1 Nf6–+ 29.Nd4 Bd4 30.Rd4 Kc6 31.Rd2 Ra1 32.Rc2 Ne5 33.Ke2 g5 34.h4 h6 35.hg5 hg5 36.Bd2 Nc4 37.Bh3 Rh1 38.Bg2 Rh2 39.Kf2 Kd6 40.Kg1 Rh7 41.Kf2 Rc7 42.Bc1 Ra7 43.Bh3 Rh7 44.Bg2 Nd7 45.Ra2 Nde5 46.Ra1 Nd3 47.Ke2 Rh2 48.Kd3 Rg2 49.Kd4 Ne5 50.Ra8 Nf3 51.Kd3 Ne5 52.Kd4 Rg1 53.Rd8 Ke6 54.Re8 Kd7 55.Bf4 0–1. Crafty 19.01 – Fritz 6, 2004.

5.Nh3 Bh3 6.gh3 ab4 7.ab4 Ra1 8.Ba1 Nf6 9.Bg2 Nbd7 10.c3 c6 11.0–0 e4 12.d3 Qe5 13.de4 Ne4 14.Qd4 Bd6 15.Qe5 Ne5 16.Rd1 f5 17.f3 Nf6 18.e4 f4 19.ed5 cd5 20.Na3 Ke7 21.Bb2 Ra8 22.h4 Bc7 23.Kf1 h6 24.Re1 Kd7 25.Bh3 Kc6 26.Ke2 Re8–+ 27.b5 Kc5 28.Kd1 Nd3 29.Re8 Ne8 30.Kc2 Ne1 31.Kd1 Nf3 32.Bd7 Nf6 33.Bc8 b6 34.Be6 Be5 35.Nc2 Nh4 36.Nb4 Nf3 37.Nd3 Kc4 38.Kc2 Bd6 39.Bc1 g5 40.Bf5 Kb5 41.h3 d4 42.Bb2 Kc4 43.Ba1 dc3 44.Be6 Nd5 45.Bc3 Nd4 46.Bd4 Kd4 47.Ne1 Ne3 48.Kb3 Ke5 49.Bd7 Be7 50.Nf3 Kd5 51.Bc8 b5 52.Bb7 Kc5 53.Ne5 Bd6 54.Nf3 b4 55.Be4 Be7 56.Bg6 Kd5 57.Bf7 Ke4 58.Nd2 Kf5 59.Bh5 Bc5 60.Be8 Ke6 61.Nf3 Kd5 62.Bg6 Kd6 63.Nd2 Ke6 64.Nf3 Ke7 65.Bh5 Kd6 66.Bg6 g4 67.hg4 Ng4 68.Bh5 Ne3 69.Ne1 Nf1 70.Kc4 Nd2 71.Kd3 Be3 72.Nf3 Nf1 73.Bf7 Kc5 74.Be6 Ng3 75.Bb3 h5 76.Ng5 h4 77.Ne4 Kb6 78.Be6 f3 79.Ke3 Ne4 80.Ke4 f2 81.Bh3 b3 82.Kd3 Kc5 83.Kc3 b2 84.Kb2 Kd4 85.Bf1 Ke3 86.Kc3 Ke4 87.Kc2 h3 88.Bh3–/+ ½–½. Crafty 19.01 – Fritz 8, 2004.

4.e3 Nc6

5.b5 Na5 6.Nf3 =.

5.Be2 d4 6.ed4 ed4 7.Nf3+/– Qf6 8.0–0 Bd6 9.Re1 Nh6? 10.Bb5+– Be5?? 11.Nd4 0–0=+ 12.Bc6 Bd4 13.Bd4+/– Qd4 14.c3 Qb6 15.Bf3 Qg6 16.Be4 Bf5 17.Bf5 Qf5 18.d4+/– Rae8 19.Nd2 Qf4 20.Nf3 Ng4 21.h3 Nf2?? 22.Kf2+– Re6 23.Re6 fe6 24.Qe2 Qh4 25.Kg1 Qg3 26.Qe6 Kh8 27.Re1 h6 28.Re3 Rf6 29.Qe8 Kh7 30.Qe4 Kg8 31.Qb7 g5 32.Qc8 Kg7 33.Re7 Kg6 34.Ne5 Kh5 35.Qe8 Kh4 36.Ng4 Qd3 37.Nf6 Qd1 38.Re1 Qd2 39.Qh5 Kg3 40.Qg4# 1–0. Trkn – Toni, itsyourturn.com, 2001.

5.Be2 e4 6.Nc3 Nf6 7.Nb5 =+.

5.Nf3 e4 6.Nd4 =.

5.Nf3 Bg4 6.Be2 Nf6 7.b5 Nd8 (better is 7...Bf3!? 8.Bf3 Nd8=) 8.Ne5+/– c6?? (better is 8...Be2 9.Qe2 a6+/–) 9.Ng4+– Ng4 10.Bg4 cb5 11.0–0 Ne6 12.Be6 Qe6 13.d3 Bd6 (13...Qc6 14.Bd4+–) 14.Nd2 (14.Bg7 Rg8 15.a4 Rg7+/–) 14...0–0 15.Nf3 f5 16.Qd2 f4 17.Qc3 fe3 (17...Qf7+–) 18.Qg7 1–0. Fournier,Frederic (1795) – Brigadeiro (1665), Active (1/0), 2005.

5.Nf3 Bg4 6.h3 Bf3 7.Qf3 Nf6 8.Bb5 =.

5.Nf3 Bg4 6.h3 Bh5 7.Be2 e4= 8.Nd4 Be2 9.Qe2 Nd4 10.Bd4 Nf6 11.0–0 g6 12.c4 c6 13.cd5+– Bg7 14.dc6 bc6 15.Nc3 0–0 16.Bc5 (16...Qe6 17.Bf8 Rf8 18.Qa6+–) 1–0. chem1st – S, ChessWorld.net, 2005.

4.e3 Nd7

5.Nc3 Ndf6 6.Nf3 Nh6 7.h3 Rg8 8.Na2 e4 9.Nd4 Bd7 10.Nb5 Kd8 11.Be2 Qe8 12.Nd4 Bd6 13.g4 c5?? 14.bc5+– Bc5 15.g5 Qe7 16.gh6 Ba3 17.Qb1 Bc5 18.hg7 Rg7 19.Nb3 Bd6 20.Bd4 Rg2 21.Nc3 a6 22.Na5 Bc8 23.Qb6 Ke8 24.Qb3 Rb8 25.Nd5 Nd5 26.Qd5 Rg5 27.Qb3 Bb4 28.Bc3 Bd6 29.Nc4 Bc7 30.Nb6 Be6 31.Qa4 Kf8 32.Qd4 Qd8 33.Qh8 Rg8 34.Qh7 Qg5 35.Rb1 Bf5 36.Qh5 Qg2 37.Rf1 Qh3 38.Nd7! Ke7 39.Bb4 Kd7 40.Qf7 Kc6 1–0. Comet B50 – EXchess 3.11, 2004.

5.Nc3 Ngf6 6.Nf3 a6 7.Be2 Qd6 8.0–0 Be7 9.d4 e4 10.Nd2 0–0 11.f3 ef3 12.Rf3 Qe6 13.Bd3 Re8 14.Qf1 Qc6 15.e4+= de4 16.Nce4 Nb6 17.b5 ab5 18.Bb5 Qc2 19.Be8 Qb2 20.Nf6 Bf6 21.Nb3 Be6 22.Rb1 Qa3 23.Bb5 Qb4 24.Kh1 Bd5 25.Rg3 Bd4 26.Nd4 Qd4 27.Re1 Qh4 28.Qf2 Qh6 29.Re7 Ra1–/+ 30.Bf1 Qc6 31.Rge3 Nd7 32.Kg1 Bc4 33.Re1 Re1 34.Re1 Bf1 35.Kf1 Nf6 36.Qd4 Qb5 37.Kg1 Qd7 38.Qd7+= Nd7 39.Re7 Nf8 40.Rc7 b5 41.Rb7 f6 42.Kf2 Ng6 43.Rb5 Kf7 44.g4 Ne5 45.Rb7 Kg8 46.Kg3 h5 47.gh5 Nd3 48.Kg4 Ne5 49.Kf5 Kh7 50.h3 Kh6 51.Rb8 Nf7 52.Rf8 Nd6 53.Ke6 Ne4 54.Kf5?? Nd6 55.Ke6?? Ne4 56.Rd8 Kh5+/– 57.Kf5 Ng3 58.Kf4 Ne2 59.Kf3 Ng1 60.Kg2 Ne2 61.Re8 Nf4+= 62.Kg3 Kg5 63.Re4+/– Nh3? 64.Kh3 f5 65.Ra4 Kh6 66.Ra6 Kh5 67.Kg3 Kg5 68.Rd6 g6 69.Rc6 Kh6 70.Kf4 Kg7 71.Kg5 Kf7 72.Rf6 Ke8 1–0. Crafty 19.01 – Comet B50, 2004.

5.c4 dc4 6.Bc4 a5 7.Nf3 e4=+ 8.Nd4 Ne5 9.Ba2?? Nd3–+ 10.Ke2 Nb2 11.Qc2 Nd3 12.Nc3 c6 13.Ne4 Qe4 14.Qd3 Qg2 15.Qc4 Bg4 16.Kd3 Nh6 (16...Qf2 17.Rhf1 Be2 18.Ne2 0–0–0 19.Nd4 Qh2 20.ba5=+). ftyre – rensoli (2705), net–chess.com, 2004.

4.e3 e4

5.d3 Nc6 6.b5 Ne5 7.de4 de4 8.Qd4 +=.

5.d3 Bf5 6.de4 Be4 7.Nc3 g6?? 8.Ne4+– Bg7 9.Bg7 Qe4 10.Bh8 Nc6 11.Bd4 Nge7 12.Qd3 Nf5 13.Qe4 de4 14.Bb5 0–0–0 15.Bc6 bc6 16.Ba7 Kb7 17.Bd4! Nd4 18.ed4 Rd4 19.Rd1 Rc4 20.Rd2 c5 21.bc5 Rc5 22.Kd1 f5 23.Ne2 g5 24.g3 Rb5 25.Kc1 Ra5 26.Kb2 c5 27.Rd7 Kc6 28.Rh7 c4 29.c3 Kd6 30.Nd4 f4 31.gf4 gf4 32.Rf7 f3 33.h4 Rh5 34.Ra7 e3 35.fe3 f2 36.Rf7 Ke5 37.Rf2 Ke4 38.Rh3 Kd3 39.a4 Ke4 40.Ka3 Kd3 41.Kb4 (41...Ke4 42.Kc4+–) 1–0. minn (2000) – pauldopson, net–chess.com, 2003.

5.d3 Nf6 6.Be2 Nc6 7.h3 ed3 8.cd3= b5 9.d4+= h5 10.Nc3 a6+/– 11.Nf3 g6 12.Ne5+– Ne5 13.de5 Nd7?? 14.Nd5 Qg5 15.Nc7 Kd8 16.Na8 Bb7 17.Nb6 Qe7 18.Nd7 (18...Qd7 19.e6 Qd1 20.Rd1 Ke7 21.Bh8 Ke6 22.Rg1+–) 1–0. lokia (1635) – donsjostedt (1605), net–chess.com, 2007.

5.Ne2 Nf6 6.Nf4 c6 7.Nh5 Nbd7 8.d3 g6 9.Ng3 Bg7 10.Nd2 0–0 11.Be2 Ne5 12.h4 ed3=+ 13.cd3 Nfg4 14.d4 Qf6 15.Rf1 h5? 16.de5+– Ne5 17.Be5 Qe5 18.Rb1 Qe7 19.Qc2 Qh4 20.Rh1 Qf6 21.Nf3 Re8 22.Nd4 h4 23.Nf1 Bf5? 24.Nf5+– gf5 25.b5 cb5 26.Rb5 Rac8 27.Rc5 Qa1 28.Kd2 Rc5 29.Qc5 Qb2 30.Qc2 Rc8 31.Qb2 Bb2 32.Rh4 Ba3 33.Ng3 a5 34.Nf5 Bc5 35.Bf3 Rd8 36.Kd3 Ra8? 37.Bd5 Ra7 38.g4 a4 39.g5 Kf8 40.Rh8 1–0. King,Roger – Lauffer,Andreas, IECG, 2001.

4.e3 Bf5

5.c4 dc4 6.Qf3 Bc8 7.Bc4 e4 8.Qg3 Nf6 9.d3 ed3 10.Bd3 Be6 11.Bf6?? gf6 12.Nf3+= Nc6 13.Be4 Qd7 14.Nc3 0–0–0 15.Nb5 Kb8 16.Rc1 Rg8 17.Qh4 Rg2 18.Bc6 bc6 19.Nbd4 c5 20.bc5 Bd5 21.Qh7 Qa4 22.Qd3 Qe8?? 23.Qf1 Rg8?? 24.Qa6 Qd7 25.c6 Qc8 26.Rb1 Ka8 27.Rb7 Bc5 28.Nb5 Bc6 29.Qc6 Qb7 30.Nc7 Kb8 31.Na6 Ka8 32.Qb7 Kb7 33.Nc5 Kb6 34.Ne4 Rd3 35.Ke2 Ra3 36.Nd4 Ra2 37.Kd3 Ra3 38.Kd2 Ra2 39.Kc3 Rg6 40.h4 Rh6 41.Nf5 Rh8 42.h5 a6 43.h6 Ra3 44.Kb4 Ra2 45.h7 Rc2 46.Nd4 a5 47.Kb3 Rcc8 48.Nf6 Ra8 49.Nd7 Kc7 50.Ne5 a4 51.Kc4 f6 52.Nf7 Rab8 53.Nh8 Rh8 1–0. Fritz 5.32 – Doctor? 3.0, 2004.

5.d4 ed4 6.Bd4 Nf6 7.c4 a5 8.c5 ab4 9.Nf3 ba3 10.Be2 a2 11.Nc3 Nc6 12.Qb3 Nd4 13.Nd4 (13.ed4 c6=+) 13...Qc5=+ 14.0–0 (14.Nf5 Qb4 15.Bb5 c6–+) 14...Bd7 15.Rfc1 (Better is 15.Qb7 Rc8 16.Ncb5=+) 15...Qd6?? (Better is 15...Ra3 16.Qb2 Qb4 17.Ra2 c6–/+) 16.Ncb5+– Bb5 17.Nb5 Qe5 18.Nc7 Kd7 19.Qb5 Kd6 20.Qc5 Kd7 21.Bb5 Kd8 22.Qb6 Qd6 23.Nd5 (23...Qb6 24.Nb6+=; Better is 23.Na8 Qb6 24.Nb6+–) 1–0. slavisa11 – karvapawnov, Live Game Caissa's Web, 2004.

5.Nf3+= Nd7 6.Nc3 Ngf6 7.Bd3 =.

5.Nf3+= f6 6.Be2 Nc6+= 7.b5 Na5 8.0–0 c6 9.Nh4 g6 10.Nf5+– gf5 11.Bh5 Kd7 12.Qf3 e4 13.bc6 Nc6 14.Qf5 Qe6 15.Qe6 Ke6 16.f3 ef3 17.Rf3 Be7 18.Bg4 Kf7 19.Nc3 Nh6 20.Bh5 Ke6 21.Nb5 Rag8 22.Nd4 Kd6?? 23.Nc6 bc6 24.Bf6 Rf8 25.Be7 Ke7 26.Rf8 Rf8 27.Rb1 Rf5 28.Be2 c5? 29.Rb7 Kd6 30.Ra7 Kc6 31.Ra6 Kb7 32.Rh6 c4 33.Rh5 Rf7 34.Rd5 Kb6 35.Bc4 h5 36.Rh5 Rc7 37.d3 Ra7 38.Rh6 Kc5 39.Ra6 Rb7 40.Bb3 Re7 41.Re6 Ra7 42.a4 Kb4 43.g4 Kc3 44.g5 Kd2 45.h4 Rh7 46.Rh6 Rg7 47.g6 Ke3 48.Bf7 Kf4 49.Rh7 Rg6 50.Bg6 Kg4 51.Rg7 Kh4 52.Bf7 (52...Kh3 53.Kf2 Kh4 54.Kf3 Kh3 55.Rh7#) 1–0. Trkn – classicJ, itsyourturn.com, 2000.

5.Nf3 Bg4 6.h3 Bf3 7.Qf3 Nf6 8.Nc3 c6 9.0–0–0 b5 10.Qf5 Nfd7 11.f4 a5 12.fe5 ab4 13.ab4 Qb4 14.e6 fe6 15.Qe6 Qe7 16.Qg4 Kd8 17.Qh5 Na6 18.Bb5 cb5 19.Nd5 Qe6 20.Qg5 Kc8 21.Nf4 Qe8 22.Rhe1 Nc7 23.e4 Ra6 24.d4 Ra2 25.Kb1 Ra6 26.d5 Qf7 27.Nd3 h6 28.Qg4 Kb7 29.Qg3 Ra4 30.d6 Qa2 31.Kc1 Ne6 32.e5 Ng5 33.h4 Ne6 34.Qf3 Kb8 35.Qc6 Ra7 36.Qb5 Rb7 37.Qc6 Ndc5 38.Qe8 Ka7 39.Kd2 Rb2 40.Nb2 Qb2 41.Ra1 Qa1 42.Ra1 Kb6 43.Rb1 Nb3 44.Rb3 Kc5 45.Qb5 Kd4 46.Rb4 1–0. Bonetti,Shane – Celes (2240), ICC, 2002.

4.e3 Nf6

5.c4 c6 6.d4 e4 7.cd5 cd5 8.Nc3 Qd8 9.Rc1 Be7 10.Nge2 0–0 11.Nf4 Bg4 12.Qb3 Be6 13.Nb5 Na6 14.Be2 Rc8 15.Ne6 fe6 16.Na7 Rc1+= 17.Bc1 Nc7 18.0–0 Qd7 19.a4+/– Ra8 20.Nb5 Nb5 21.Bb5 Qd6 22.Bd2 Rc8 23.h3 Bd8 24.Be2 Bc7 25.g3 h5 26.Kg2 h4 27.Be1 Bb8 28.Qb2 g6 29.Rh1 g5 30.g4 Nd7 31.a5+/– e5 32.Bc3 ed4 33.Bd4 Rf8 34.Bd1 Rf7 35.Ba4 Nf8 36.Qc3 Rf2+= 37.Kf2 Qg3 38.Kf1 Qf3 39.Kg1 Qg3= 40.Kf1 ½–½. jammboy – shoulders, ChessWorld.net, 2007.

5.c4 c6 6.cd5 Nd5 7.Nf3 Bg4 8.Be2 Nd7 9.0–0 g5 10.d4 e4= 11.Nfd2 Bf5 12.Qc2 Bg7 13.Nc3 N7f6 14.Rfc1 a6 15.Nd5 Nd5 16.Qc5 g4 17.Nc4 Bf8 18.Qe7 Be7 (19.Rab1 Rg8+=). Orlik – Polanski, corr Czerniakow mem, 1991.

5.c4 c6 6.Nf3 e4 7.Nd4 =.

5.c4 c6 6.Nf3 Bg4 7.Be2 g6 8.Ne5+/– Be2 9.Qe2 Bg7 10.cd5+– cd5 11.Qb5 Kf8 12.0–0 a6 13.Qb6 Kg8 14.Rc1 h6 15.Rc7 Nfd7 16.Qb7 Be5 17.Be5 Qe5 18.Nc3 Kg7 19.Rd7?? Nd7= 20.Qd7 Rhd8 21.Qc6 d4 22.ed4 Qd4=+ 23.Rf1 Qd2 24.Ne4 Qd4 25.Nc5 a5 26.Qc7 Qd6 27.Qd6 Rd6 28.Nb7 Rd3 29.Na5 Ra3 30.Rb1 Rb8 31.Nc6 Rb6 32.Nd4?? Rb4!! (33.Nf5 Kf6–+) 0–1. touchdown – shoulders, ChessWorld.net, 2006.

5.c4 Be6 6.cd5 Bd5 7.Nc3 Nbd7 8.Nd5 Nd5 9.Bc4 N7b6 10.Bb3 0–0–0 11.Nf3 f6 12.Rc1+= g5 13.h3 h5 14.b5 Bg7 15.a4 Nb4=+ 16.Qe2?? Nd3–+ 17.Kf1 Nc1 18.Bc1 Qb4 19.Be6 Kb8 20.g3 Qa4 21.Kg2 Qe4 22.Bb2 g4 (23.d4 ed4–+) 0–1. ncc_1701 – S, ChessWorld.net, 2005.

5.c4 Bg4 6.f3 Be6 7.cd5 Bd5 8.e4 =.

5.d4 e4 6.c4 c6 7.Nc3 g6 8.Qb3 Be6 9.cd5 Nd5 10.Bc4 Nc3 11.Bc3 Bc4 12.Qc4 Bg7 13.Ne2 Nd7 14.a4 Nb6 15.Qb3 Nd5 16.0–0 0–0 17.b5 Rfd8 18.Rab1 c5 19.dc5 Nc3–/+ 20.Nc3 Rd3 21.Rbc1 Qe5 22.c6 bc6 23.bc6 Rc3 24.Qb7 Re8 25.Rc3 Qc3 26.h4 Be5 27.g4 Bd6 28.Rd1 Qe5 29.Kf1 Bc7 30.Rd7 Bb6 31.c7 Qc3?? 32.Qb8= Qc1?? 33.Kg2+– Rb8 34.cb8Q Kg7 35.Qe5 Kh6 36.Qf4 Kg7 37.Qf7 Kh8 38.Qh7 1–0. waycoolguy (2080) – nbh999 (1930), ChessWorld.net, 2003.

5.Be2 g6 6.h3 Bg7 7.Nf3 Nbd7 (7...e4 8.Nd4 0–0 9.Nc3 Nbd7 10.0–0 Ne5 11.f4 ef3) 8.c4 (8.Nc3 0–0 9.0–0 e4 10.Nd4 Ne5 11.f4 ef3) 8...0–0 (8...e4 9.Nd4+= dc4 10.Bc4 a5 11.Nc3 Ne5) 9.d4= (9.cd5 e4 10.Nd4 Nd5 11.Nc3 Nc3) 9...e4 (9...ed4 10.Bd4 c5 11.bc5 Nc5) 10.Nfd2 c6 (10...a5 11.ba5 c5) 11.c5 (11.0–0 dc4) 11...Re8 (11...Rd8=) 12.a4 Nf8 13.a5 h5 14.Nc3 h4 15.Nb3 Rb8 16.Na4 (16.b5 Ne6+=) 16...Qd7 17.Kd2 (17.0–0!?+=) 17...Qf5 18.Qg1 Bh6 19.Rf1 N8h7 20.g4 Qe6 21.Kc2 Ng5 22.Nd2 Nd7 23.Bc3 b6 24.ab6 ab6 25.f4?? (better is 25.cb6 Nb6 26.Nc5+=) 25...ef3–+ 26.Bf3 (26.Nf3 Nf3 27.Rf3 Be3–+) 26...bc5 27.Nc5 Nc5 28.dc5 Ba6 29.Ra1 Nf3 30.Nf3 Qe4 31.Kc1 Qf3 (31...Qf3 32.g5 Re3 33.Qe3 Bg5 34.Qg5 Qc3 35.Kd1 Rb4 36.Rh2 Qa1 37.Qc1 Qd4 38.Rd2 Qg1 39.Kc2 Rc4 40.Kb2 Qc1 41.Ka2 Ra4 42.Kb3 Ra3 43.Kb4 Qc3#) 0–1. Blasig,Volker (1855) – Bakalarz,Mieczyslaw (2315), Luxembourg op, 1996.

5.Nf3 e4 6.Nd4 c5 7.bc5 Qc5 8.Nc3 Be7 9.Nb3 Qc7 10.Nb5 Qd7 11.Be5 a6?? 12.Nc7+– Kd8 13.Na8 Nc6 14.d4 Bd6 15.Nb6 Qc7 16.Bf6 gf6 17.Nd5 Qa5 18.Na5 (18...Na5 19.Nf6+–) 1–0. Trkn – guest433, ICC, 2004.

5.Nf3 e4 6.Nd4 c6 7.Be2 Qc7 8.d3 Bd6 9.de4 Ne4 10.Nd2 0–0 11.N4b3 Re8 12.h3 Bf5 13.Nd4 Bg6 14.c4 Nd2 15.Qd2 dc4 16.Bc4 Nd7 17.Rd1 Ne5 18.Be2+= Rad8 19.Qc3 Bf8 20.0–0 Nd7 21.Nb5 Qb8 22.Nd6 Re6 23.Nc4 f6 24.Rd2 Qc7 25.Rfd1 Ree8 26.Qd4 c5 27.Qf4 Qf4= 28.ef4 cb4 29.Bg4 f5 30.Bf3 Bf7 31.Nd6 ba3 32.Ba3 Bb3 33.Rb2 Bd6 34.Rd6 Bc4 35.Rb7 Nb6 36.Rd8 Rd8 37.Ra7 Rd7 38.Bb7 Ba6 39.Ra6 Rb7 40.g4 fg4 41.hg4 Nc4 42.Kg2 g6 43.Bc5 Rc7 44.Bd4 Rd7 45.Bc3 Kf7 46.Rf6 Ke7 47.Rc6 Nd6 48.Bb4 Ke6 49.Kf3 Kd5 50.Rd6 Rd6 51.Bd6 Kd6 52.g5 Kd5 53.Ke3 (53...Ke6 54.Ke4+–) 1–0. Naeter,Burkhard – Lilja,Gunnar, IECC, 1999.

5.Nf3 Bg4 6.Be2 Bf3= 7.Bf3 e4 8.Be2 Nc6 9.0–0 0–0–0 10.c4 d4? 11.b5+– d3? 12.Bg4 Ng4 13.Qg4 (13...Qd7 14.Qd7 Kd7 15.bc6 Kc6 16.Bd4+–; 13.bc6 Nh2 14.cb7 Kb8–+) 1–0. Wall,Bill – Toriano C, internet, 2000.

5.h3 Qe6 6.Nf3 Bd6 7.Nc3 =+.

5.h3 g6 6.Nf3 Nbd7 7.c4 c6 8.cd5 cd5 9.Be2 Bg7 10.0–0 0–0 11.Nh2 b6 12.f4 e4=+ 13.Ng4 Ng4 14.Bg7 Kg7 15.hg4 Bb7 16.g3 Rac8 17.g5 f6 18.Bg4 fg5–/+ 19.Nc3 gf4 20.gf4 Rcd8 21.Bd7 Rd7 22.Rf2 d4 23.ed4 Rd4 24.Qe2 Rd3 25.Re1 Rg3 26.Kh1 Qh4 (27.Rh2 e3 28.Nd5 Bd5 29.Qg2 Bg2 30.Kg1 Bf3 31.Rg2 Rg2 32.Kf1 Qf2#) 0–1. yulio – shoulders, ChessWorld.net, 2006.

5.Nf3 Nbd7

6.Bb5 c6 7.Be2 g6 8.0–0 Bg7 9.c4 0–0 10.cd5 cd5 11.Nc3 b6 12.Rc1+= Bb7 13.Nb5 a6 14.Rc7 Rab8= 15.Ne5 ab5 16.Bb5 Rfd8 17.Qa1 Qd6 18.Nd7 Nd7?? 19.Rd7+/– Rd7 20.Bg7 Rc7? 21.Be5+– Qe7 22.Bc7 Qc7 23.Qf6 Ra8 24.a4 Ba6 25.Qc6 Qc6 26.Bc6 Rc8 27.b5 Rc7 28.Bd5 Bc8 29.Bf3 Be6 30.Ra1 Ra7 31.Bd1 Rc7 32.d4 f5 33.f3 Bd5 34.Kf2 Kf7 35.a5 ba5 (36.b6 Rd7+–). Whiterose – shoulders, ChessWorld.net, 2007.

6.Nc3 g6 7.Nb5 Kd8 8.Nc3 Bg7 9.Be2 c6 10.b5 Ke8 11.d4 e4 12.Nd2 Kf8 13.bc6 bc6 14.Na4 Bh6 15.c4 Kg7 16.0–0 Rd8 17.Bc3 Ba6 18.Bb4 Qe8 19.Qc2 Rdc8 20.Rab1 Rab8 21.Nc5 Nc5 22.Bc5 Qd7 23.Qa4 Bc4 24.Bc4 dc4+– 25.Nc4 Nd5 26.Ne5 Qc7 27.Rb8 Rb8 28.Nc6 Rb2 29.Nb4 Ne3?? 30.Qe8 Nf1 31.Bf8 (31...Kf6 32.Nd5 Kg5 33.Nc7 Bf8 34.Qf7+–) 1–0. pierred – shoulders, ChessWorld.net, 2006.

6.c4 c6 7.d4 e4 8.Nfd2 g6 9.c5 Bg7= 10.Nc3 0–0 11.b5 Re8 12.bc6 bc6= 13.Qa4 Bb7 14.Rb1 Nf8 15.Nb3 Qd7 16.Na5 Reb8 17.Bc1 Ne6 18.Be2 Nd8 19.h4 Bc8= 20.Rb4 Qc7 21.h5 Bg4 22.hg6 hg6 23.Bd2 Rb4 24.ab4 Rb8 25.0–0 Be2=+ 26.Ne2 Ng4 27.g3 g5 28.Rb1 f5 29.b5 Bf8 30.Rb3?? Qh7–+ 31.Kf1 Qh1 32.Ng1 Nh2 (33.Ke2 Qg1–+) 0–1. WoodPusher83 – shoulders, ChessWorld.net, 2007.

6.c4 c6 7.cd5 cd5 8.Nc3 a6 =.

6.c4 c6 7.Be2 e4 8.Nd4 =+.

6.c4 c6 7.Be2 g6 8.0–0 Bg7 9.Nc3 0–0 10.cd5 cd5 11.Re1 a6 12.Na4 12...b5 13.Nc5 Nc5–/+ 14.bc5 e4 15.Nd4 Qc5–/+ 16.Rc1 Qe7 17.Nc6 Qe6 18.Nd4 Qe7 19.Nc6 Qe6 20.Nd4 Qd7 21.Qb3 Bb7 22.Bc3 Rac8 23.Qb2= Ne8 24.Bb4 Nd6=+ 25.Rc5 Rc5 26.Bc5 Rc8 27.Bb4 Nc4 28.Qb3 Be5 29.Rc1 Qd6?? 30.Bd6+– (30...Bd6 31.a4+–) 1–0. PeterRs – shoulders, ChessWorld.net, 2006.

6.c4 e4 7.Nd4 =.

6.d3 a5 7.ba5 Ra5 8.Bc3 Ra8 9.Be2 h6 10.0–0 Qd6 11.a4 Be7 12.Na3 c6 13.d4 e4–/+ 14.Nh4 Qe6 15.g4 Ra4 16.Nf5 0–0 17.Bb2 b5 18.Ne7 Qe7 19.Nb1 Ra1 20.Ba1 Bb7 21.Bc3 Ra8 22.Bd2 Qf8 23.Qe1 Ra2 24.Bb4 Qb8 25.Na3 Qa8 26.Qc3 Qa4 27.Rb1 Kh7 28.Rb2 Ra1 29.Rb1 Rb1 30.Nb1 Qa2 31.Na3 Kg8 32.Bd6 Nf8 33.Bb4 Ng6 34.Bd6 Kh7 35.Kf1 Nh4 36.Be7 Nf3 37.Bf6+= gf6 38.Bf3 ef3 39.Kg1 Kg7 40.h3 f5 41.gf5 Kf6 42.Kh2 Kf5 43.Kg3 Kg6 44.Kf3 f6 45.Kf4 Kh5 46.Kf5+/– Bc8 47.Kf6+– Bh3 48.Qd3 Qc2 49.Nc2 Kg4 50.Ne1 Bg2 51.Qf5 Kh4 52.Ng2 1–0. Crafty 19.01 – Comet B25, 2004.

6.Be2 g6 7.0–0 Bg7 8.d3 0–0 9.Nbd2 b6 10.c4 c6 11.cd5 cd5 12.Rc1 Ne8 13.Nb3 Bb7 14.Qd2 Nd6 15.a4 Rac8 16.Rc8 Rc8 17.Rc1 Qe8 18.Rc8 Qc8 19.Qc1 Qc1 20.Bc1 Kf8 21.Kf1 Bc6 22.b5+= Bb7 23.Ba3+/– Ke7 24.d4 h6= 25.de5 Ne5 26.Ne5 Be5 27.h3 Kd7 28.Ke1 Nc4 29.Bc1 f5 30.g3 h5 31.h4 Bc3 32.Kd1 Nb2 33.Bb2+= Bb2 34.Kc2 Bf6 35.f4 Kd6 36.Bf3 Bg7 37.Kd3 Bf6 38.Bg2 Bg7 39.Nd4 Bf6 40.Nb3 Bg7 41.Nd4 Bf6 42.Nb3 Bg7 43.Nd4 Bf6 44.Nb3 (44.Bf1 Kc5 45.Kc3 Bg7=) ½–½. Nokarookoff – shoulders, ChessWorld.net, 2006.

4.e3 g6

5.c4 c6 6.cd5 cd5 7.Nc3 Be6 8.Rc1+/– Bg7 9.Qa4 Qd7 10.Bb5 Nc6+= 11.Ne4 de4 12.Rc6 Kf8 13.Ra6 Qd5–/+ ½–½. Rohacek,Miroslav – Kolman,Richard, Bratislava, 2000.

5.c4 Nf6 6.Nf3 e4 7.Nd4 dc4 8.Bc4 =.

5.d4 e4 6.Nc3 c6 7.f3 f5 8.fe4 fe4 9.Nge2 Bh6 10.Nf4= Qf6 11.Nce2=+ g5 12.Nh5= Qf7 13.Neg3 Nf6 14.Be2+= Bg4?? 15.Nf6+– Qf6 16.Bg4 Rf8 17.Rf1 Qd6 18.Bh5 Kd7 19.Qg4 Ke7 20.Nf5 Rf5 21.Qf5 Nd7 22.Qf7 Kd8 23.Qe8 (23...Kc7 24.Qa8 Qh2 25.Be2+–) 1–0. mwojo (1745) – pauldopson, net–chess.com, 2004.

5.Nf3 Bg7 6.c4 dc4 7.Bc4 Bg4 8.Nc3 +=.

5.Nf3 Bg7 6.c4 c6 7.cd5 cd5 8.Nc3 Nf6 9.Qb3 Be6 10.Ne5 d4= 11.Qa4 Nbd7 12.ed4+/– 0–0 13.Qb5 Ne5 14.de5+– Bd7 15.Qc5 Rfc8?? 16.Qe7 (16...Re8 17.Qd6+–) 1–0. MrkT – caissa100, internet, 2005.

5.Nf3 Bg7 6.d4 e4 7.Nfd2 a5 8.c4 ab4 9.Nb3 c6 10.cd5= cd5 11.Bb5 Bd7=+ 12.a4 Bb5 13.ab5 Ra1 14.Ba1 Nd7 15.0–0 Ngf6 16.N1d2 0–0–/+ 17.Na5 Nb6 18.Qb3? Rc8 19.Rb1? Rc3?? 20.Bc3+– bc3 21.Qc3 h6 22.Qb4 Qc7? 23.Nab3 Bf8 24.Qa5 Nfd7 25.Rc1 Qb8 26.Nc5 Nc4?? 27.Nc4 Nc5 28.Qa2?? Nd3–/+ 29.Rc2 dc4 30.Qc4–/+ Qa7 31.Ra2= Qb6 32.d5 Bc5 33.Qc3? Qd8 34.Qb3? b6 35.Rd2 Qa8 36.Ra2 Qd8 37.Ra7 Qd6 38.Ra8 Kh7 39.Qc3=+ Ne5 40.f4? ef3 41.gf3? Nf3 42.Kf1? Qe5?? 43.Qe5–/+ Ne5 44.e4 h5 0–1. gtate (1980) – somporn (2140), net–chess.com, 2005.

5.f4 Nd7 +=.

4.Nf3 Nc6

5.b5+= Nb8 6.Be5+/– f6 7.Bb2 Nd7 8.e3 b6 9.d4 g5 10.Be2 g4 11.Nh4 f5 12.Nf5 Qf6 13.Bg4 Bb7 14.Bh5 Kd8 15.Qg4 Nh6 16.Nh6 Qh6 17.Nc3 Nf6 18.Qh3?? Nh5= 19.0–0–0 Bc8 20.g4 Bd6?? 21.Qh5 Qf6?? 22.Nd5 Qf3 23.Qg5 Kd7 24.Qg7 Ke6 25.Nc7 (25...Bc7 26.d5 Kd6 27.a4 Qd1 28.Rd1 Kc5 29.Ba3 Kc4 30.Qc7) 1–0. tightfist – mleek, net–chess.com, 2006.

5.b5+= Nd4 6.Nd4 ed4 7.Bd4 b6 (7...Nh6!?+=) 8.e3–/+ Bb7 9.Be2 0–0–0 (9...Nh6 10.0–0–/+) 10.0–0+– Nf6 11.d3 g6 (11...Qd7 12.a4+–) 12.Bg4 (12.a4 Bg7+–) 12...Kb8 13.Qf3 (13.a4 h5 14.Bf3 Bg7+–) 13...Bg7–/+ 14.Nc3 h5 15.Bh3 g5 16.Bf5 g4 17.Qd1 c5?? 18.bc6+– Bc6 19.a4 Bd7?? 20.Bd7+– Qd7 21.Nb5 Rhg8 22.Na3 Ne8 23.Bg7 Rg7 24.d4 Rg6 25.Qd3 Rf6 26.a5 Qf5 27.Qf5 Rf5 28.ab6 Rd7 29.ba7 Ra7 30.c4 f6 31.Rfb1 Rb7 32.Rb7 Kb7 33.c5 Rg5 34.Nb5 Kc6 35.Na7 Kd7 36.Ra6 Rg7 37.Nb5 f5 38.Ra7 Kc6 39.Rg7 Ng7 40.Nd6 Kd7 41.g3 Ne6 42.Nf5 Kc6 43.Kg2 Nc5 44.Ng7 Nd3 45.Kf1 Kd6 46.Nh5 Ke6 47.Nf4 Nf4 48.gf4 Kf5 49.Kg2 Ke4 50.Kg3 Kd3 51.f5 Ke2 52.f6 1–0. Trkn – Thompson, itsyourturn.com, 2000.

5.b5+= e4 6.bc6 ef3 7.cb7 Bb7 8.gf3 +=.

4.Nf3 d4

5.e3 Bg4 6.Be2 Nf6 7.0–0 Bf3 8.Bf3 e4 9.ed4! ef3 10.Re1 Ne4 11.Qf3 Qf6 12.Re4?? (12.Qf6) 12...Be7 13.Rf4 Qg6 14.d3 0–0 15.Nd2 Bd6 16.Rg4 Qh6 17.h3?? Qd2 18.Rg7? Kg7 19.d5 f6 20.Bc1?? Qe1!! 0–1. mtr – ChiefWahoo2, Internet, 2001.

5.e3 Bg4 6.Be2 h6 7.0–0 g5? (7...de3 8.Ne5 ef2 9.Rf2 Be6+–) 8.ed4 Bf3 (better is 8...e4 9.Ne5 Be6+–) 9.Bf3 (9.gf3?! f6+/–) 9...c6 10.Re1 Qd6 (10...Bg7 11.de5 Nd7 12.b5+–) 11.de5 (11.Re5?! Kd8+–) 11...Qc7 12.e6 (12.Bh5!? Kd8+–) 12...f6 13.d4 Na6 (13...Bd6 14.g3+–) 14.d5 (14.Bh5!? Ke7+–) 14...0–0–0 15.c4 cd5 16.cd5 Qc4 (16...Bd6 17.Nd2 Kb8 18.Rc1+–) 17.Nd2 Qf4 18.Rc1 Kb8 19.e7! Ka8 (19...Be7 20.g3 Combination; 19...Ne7 20.g3 Combination) 20.ed8Q (20.ed8Q Nb8 21.Qf8+–) 1–0. Fournier,Frederic – tepartoelpeon, Active, 2008.

4.Nf3 Nd7

5.d4 e4 6.Ne5 =+.

5.e3 Ngf6 6.Nc3 a6 7.Rb1 h6 8.Be2 Qd6 9.0–0 Be7 10.b5 0–0 11.ba6 ba6 12.Re1 Rb8 13.d3 Qc6 14.Qd2 Bd6 15.Rf1 Rd8 16.h3 Rb6 17.Qe1 Bb7 18.d4 e4 19.Nh4 Rb8 20.Nf5 Bc8 21.Nd6 cd6 22.Nd1 Qc2 23.Rc1 Qa4 24.Rc7 Ne8 25.Rc1 Ndf6 26.Qd2 Bf5 27.Rc2 Qd7 28.Nc3 Nc7 29.Rfc1 Ne6 30.a4 Ng5 31.a5= Rb3 32.Nd1 Nf3? 33.gf3 ef3 34.Bf3 Bc2 35.Qc2 Qh3 36.Be2 Ng4 37.Ba6 g6 38.Bc8 Kg7 39.Ba1 R3b5 40.a6 Rb4 41.Qc7 Rb1 42.a7 Rc1 43.Qc1 Ra8 44.Bb7 Qh2 45.Kf1 Qh1 46.Ke2 Ra7 47.Bc6 Ra2 48.Bb2 Nh2 49.Kd2 Nf3 50.Ke2 Qh5 51.Bb5 Kh7 52.Qc7 Nd4 53.Kd2 Nf3 54.Kc1 Qf5 55.Bd3 Qe6 56.Nc3 Ra8 57.Qb7 Ra5 58.Kd1 Ne5 59.Be2 Nc4 60.Bc1 Qf5 61.f3 Ra1–+ 62.Bc4 dc4 63.Qe4 Qe4 64.Ne4 d5 65.Nf6–/+ Kg7 66.Nd5 h5 67.Kc2 Kh7 68.Nf6 Kh6 69.e4 g5 70.Ng8 Kh7 71.Ne7 h4 72.Bg5 h3 73.Bf4 Rf1 74.Bd6 Rf3 75.Nf5 f6 76.Bg3 Kh8 77.Kd1 Kg8 78.Kc2 Kf7 79.Kd1 Ra3 80.Kc2 Ke6 81.Ng7 Kd7 82.Nf5 Rf3 83.Kd1 Rd3 84.Kc2 Rb3 85.Kc1 Rb6 86.Kd2 Re6 87.Ke3 Rc6 88.Nd4 Rb6 89.Nf5 Rb3 90.Kd4 Rb2 91.Kc4 h2 92.Bh2 Rh2 93.Kd4 Ra2 94.Ke3 Ra3 95.Kf4 Ra4 96.Ke3 Kc7 97.Kf4 Kd8 98.Ne3 Ke7 99.Kf5 Ra5 100.Nd5 Kf7 101.Kf4 Ke6 102.Nc7=+ Ke7 103.Nd5 Kf7 104.Ne3 Rc5 105.Nf5 Ke6 106.Nd4 Kd7 107.Ke3 Rc4 108.Nf5 Rb4 109.Kf3 Ke6 110.Kf4 Rc4 111.Ng7 Kf7 112.Nf5 Rc1 113.Nd4 Rd1 114.Nf5 Rf1 115.Ke3 Ke6 116.Nd4 Kd6 117.Nf3 Rb1 118.Kf4 Rb4 119.Nh4 Ke7 120.Nf5 Ke6 121.Ng7 Kf7 122.Nf5 Ra4 123.Nd6 Ke7 124.Nf5 Ke6 125.Ng7 Kf7 126.Nf5 Ra1 127.Nd4 Rb1 128.Nf3 Rb4 129.Nh4 Rb3 130.Nf5 Rb8 131.Nd4 Kg6 132.e5 Rb4 133.Ke4 fe5 134.Ke5=+ ½–½. Fritz 6 – Comet B50, 2004.

5.e3 Ngf6 6.Be2 Qe6 7.Nc3 c6 8.Ng5 (8.0–0 Bd6=) 8...Qf5=+ 9.Nf3 Bd6 10.0–0 0–0 11.d3 Re8 12.Re1 Qe6 13.Qd2 a5 14.b5 e4 (14...Nb6 15.Reb1=+) 15.bc6= bc6 16.Nd4 Qe5 17.g3 Bb7 18.de4 de4 (Worse is18...Ne4 19.Ne4 Qe4 20.Bd3–/+) 19.Rab1 Qg5 20.Ndb5 Be5 21.Nd6 Bd6 22.Qd6 Ne5 23.Qc7 Ba6=+ 24.Ne4 Ne4 25.f4 Qg6 26.Be5 Ng3 27.Ba6 Ne4 28.Kf1 Ra6 29.Rb8 Ra8 30.Ra8 Ra8 31.Rd1 h6 32.Rd8 Rd8 33.Qd8 Kh7 34.Qa5 Qh5 35.Ke1 Qf3 36.Bd4 c5 37.Bc5 Qf2 38.Kd1 Qf1 39.Qe1 Qf3 40.Kc1 Nc5 41.Kb2 g5 42.fg5 hg5 43.Qd2 f5 44.Qd4 Qb7 45.Qb4 Qe7 46.Qd4 Kg6 47.Ka2 Ne4 48.Qb6 Kh5 49.Qd4 Qc7 50.Kb3 Kg4 51.Qd1 Kh4 52.Qd4 Kh3 53.Qh8 Kg2 54.Qd4 g4 55.c4 Kh2 56.Qb2 Kg3 57.Qd4 0–1. mtrh – NN, internet, 2002.

4.Nf3 e4

5.Nd4 a5 6.b5 c5 7.bc6 bc6 8.e3 Qb7 9.Qc1 Na6 10.a4 Bd7 11.Be2 Nf6 12.0–0 Be7 13.f3 0–0 14.fe4 Ne4 15.Nc3 Nac5 16.Ne4 Ne4 17.d3 Nd6 18.Bc3 Qc7 19.Qd2 Rfe8 20.Bf3 Bg5 21.Rae1 Qd8 22.Qf2 Bh4 23.g3 Bf6 24.Bg2 Be5 25.Ba1 Qf6 26.Qd2 Qg6 27.e4 de4=+ 28.Be4 Ne4 29.Re4 c5 30.Ne2 Ba1–/+ 31.Re8 Re8 32.Ra1 Qg4 33.Re1 Qa4 34.c3 Qc6 35.Nf4 a4 36.Re8 Be8 37.c4 Qf6 38.Nd5 Qe5 39.Qa5–/+ Qd4 40.Kg2 Qd3 41.Qd8? Qe2 42.Kg1 a3 43.Nc3 Qe1 44.Kg2 h6 45.h4 Kh7 46.Qd3 g6 47.h5 Bc6 48.Nd5 a2 49.Qf3 a1Q 50.Qf7 Qg7 51.hg6 Kh8 (52.Qg7 Kg7–+) 0–1. Saradjen,Janko (2215) – Orel,Oskar (2270), SLO–ch Skofja Loka, 2000.

5.Nd4 a5 6.b5 Nf6 7.e3 c5 8.bc6 Nc6 9.Be2 Qe5 10.Bb5 Bc5 11.Ra2 Qd6 12.Nb3 Bb6 13.d3 a4 14.N3d2 0–0 15.de4 de4 16.Bf6 Qf6 17.Ne4 Qg6 18.Ng3 Rd8 19.Qc1 Nd4 20.Bd3 Ba5 21.Kf1 Nf5 22.Rb2 b6 23.Kg1 Qf6 24.Ne4 Qc6 25.Qf1 Ra7 26.Nbd2 Re7 27.c3 Nd6–/+ 28.f3 f5 29.Nd6 Qd6 30.Bc4 Kf8 31.Nb1 Qc5 32.g3 Re3 33.Rb5 Qc6 34.Be2 Rde8 35.Rb2 Bc3 36.Ra2 Be6 37.Bb5 Qc5 38.Kg2 Ba2 39.Be8 Bb1 40.Qb1 Ke8 41.Rd1 Ke7 42.Qa2 Bf6 43.Rd2 Qa3 44.Qd5 Qc3 45.Rf2 Qc5 46.Qb7 Ke6 47.Qb8 b5 48.Qe8 Kd5 49.Rd2 Kc4 50.Qd7 a3 51.Qf7 Kb4 52.Rf2 Qc4 53.Qf8 Kb3 54.Qd6 0–1. Fritz 8 – Crafty 19.01, 2004.

5.Nd4 c6 6.e3 g6?? (Better is 6...Nf6=) 7.Nc6!!+– bc6 (7...Nc6 8.Bh8) 8.Bh8 f6 9.c4 Bh6? (Better is 9...Nh6 10.cd5 Nf7 11.dc6 Nh8+–) 10.cd5 cd5 11.Nc3 Bb7 12.Rc1 Qf8 13.Nd5! Bd5 14.Rc8 Kf7 15.Rf8 Bf8 16.f3 Nh6 17.Qc1 Nd7 18.Bc4 Bc4 19.Qc4 Ke7 20.Qe4 Ne5 21.Qa8 Nef7 22.Qb7 Kd6 23.Ke2 Nh8 24.Rc1 1–0. marekt (2510) – greengrass, ChessWorld.net, 2003.

5.Nd4 Nf6 6.Nc3 a5 7.b5 c5 8.bc6 bc6 9.e3 Qc7 10.d3 Bc5 11.de4 de4 12.Nb3 Be7 13.Qd4 Bf5 14.Nd2 Qb7 15.Rb1+/– Nbd7 16.Nde4 Be4 17.Ne4 Ba3 18.Bd3 Qb4 19.Qb4 Bb4 20.Ke2 Nd5 21.c4+/– N5b6 22.Bg7 Rg8 23.Nf6 Nf6 24.Bf6 Nd7 25.Bd4 Rg2 26.Bh7 Rg4 27.Bf5 Rh4 28.Rbd1 Nf8 29.f3 Ne6 30.Be4 Ra6 31.Be5 a4 32.Rb1 c5 33.Rhd1 a3 34.Rd6 Ra7 35.Ra1 a2 36.Kd1 Ke7 37.Rd5 Rh3 38.Bd6 Kf6 39.Rf5 Kg7 40.Kc2 f6 41.Kb2 Ng5 42.Ra2 Ra2 43.Ka2 Ne4 44.fe4 Re3 45.Rf4 Rh3 46.Be7 Kf7 47.Bf6 Ke6 48.Bb2 Rh2 49.Kb3 Rh3 50.Ka4 Rh2 51.Bf6 Bd2 52.Rf3 Rh6 53.e5+– Bb4 54.Rb3 Be1 55.Rb6 Kf5 56.Rc6 Bf2 57.Kb5 Rh1 58.Rc5 Bc5 59.Kc5 Ke6 60.Kc6 Rb1 61.c5 Rh1 62.Kb7 Kd5 63.Bg5 Kc5 64.Kc7 Re1 65.Be7 Kd5 66.Bd6 Re5 67.Be5 ½–½. Fritz 8 – Fritz 5.32, 2004.

5.Nd4 Nf6 6.e3 a5 7.ba5 Ra5 8.Bc3 Ra8 9.Be2 c5 10.Nb5 Na6 11.0–0 Bd7 12.f3 ef3 13.Rf3 Ne4 14.Ba5 Qe5 15.N1c3 Ng5 16.Rf2 d4–/+ 17.h4 Be7 18.hg5= dc3 19.Bc3 Qg5 20.Bc4 f6 21.Ba5 Bc6 22.Qe2 Qg6 23.Bb3 f5 24.Qc4 h6 25.a4 Rf8 26.Bc7 Be4 27.Be5 Kd8 28.Raf1 Re8 29.Qf7 Qf7= 30.Bf7 Rf8 31.Be6 Bc2 32.Bg7 Re8 33.Bf7 Bh4 34.Rf5! Bf5 35.Be8 Bd3 36.Rf8 Ke7 37.Rf7 Ke6 38.Rf4 Bg3 39.Rf6 Ke7 40.Rf7 Ke6 41.Rf8 Ke7 42.Rf3 Be1 43.Rf7 Ke6 44.Rf6 Ke7 45.Bh5 Bd2 46.Rf7 Ke6 47.Bh6 Rh8 48.Rb7?? Rh6–/+ 49.Bg4 Ke5 50.Re7 Kf6 51.Re6 Kg7 52.Rh6 Be3 53.Kh2 Bh6 54.Kh3 Kf6 55.Nd6 c4 56.Bf3 c3 57.Ne4 Be4 58.Be4 Ke5 59.Bg6 Nb4 60.Kg4 c2 61.Bc2 Nc2 62.Kh5 Bd2 63.g4 Ne3 64.Kh4 Kf4 65.g5 Ng2 66.Kh3 Kf3 67.Kh2 Bg5 68.Kh1 Bd8 69.Kg1 Ne3 70.Kh2 0–1. Comet B50 – Fritz 5.32, 2004.

5.Nd4 Nf6 6.e3 a5 7.b5 c5 8.bc6 bc6 9.Nc3 Qc7 10.d3 Bc5 11.de4 de4 12.Bc4 0–0 13.Qe2 Rd8 14.Rd1 Qe7 15.Nb1 a4 16.Qd2 Bb6 17.Qe2 Bc7 18.h3 Bb7 19.Nd2 Nbd7 20.0–0 Rab8 21.f3 Qe5 22.f4 Qc5 23.Rb1 Ba8 24.Ba2 Nb6 25.Rfd1 Bb7 26.c4 Ba6 27.Nc2 Nbd7 28.Bd4 Qf5 29.Rb4 Rb4 30.Nb4 Bb7 31.c5 Bb8 32.Qc4 Qh5 33.g4 Qh3 34.Qf7 Kh8 35.Be6 Qg3 36.Kf1 Qh3 37.Ke2 Qg2 38.Ke1 Qg3 39.Ke2 Qg2 40.Ke1 ½–½. Fritz 6 – Fritz 5.32, 2004.

5.Nd4 Nf6 6.e3 a5 7.b5 Qe5 8.Qc1 Bd6 9.Nf5?? Qf5–+ 10.h3 Be6 11.Be2 Nbd7 12.d4 h5 13.Nd2 Ke7 14.a4 g5 15.c4 dc4 16.Bc4 g4 17.Be6 fe6 18.Qc2 Bb4 19.0–0–0 Qf2 20.Rhf1 Bd2 21.Kb1 Qg2 22.d5 Nd5 23.Bh8 Ne3 (24.Bf6 Nf6 25.Qc5 Kf7 26.Qh5 Ke7 27.Qc5 Kf7 28.Qh5 Ke7 29.Qc5 Kf7 30.Qh5=). Old Sisyphus – S, ChessWorld.net, 2005.

5.Nd4 Bg4 6.h3 Bh5 7.Nf5 Qg5 8.g4 Nf6 9.Ne3 d4 10.Bd4 Bg6 11.h4 Qf4 12.h5 Nc6 13.Bf6 Qf6 14.Nc3 0–0–0 15.hg6 Qg6 16.Bg2 Rd4 17.Nf5 Rd7 18.e3 Ne5 19.Be4 Qa6 20.Nd4 g6 21.f4 Nc4 22.b5 Qd6 23.Qf3 Na5 24.Rb1 Qa3 25.Nb3 Nb3 26.Bb7 Kb8 27.cb3 Rd6 28.Ba6 c6 29.Qe4 Rd8 30.Qc6 Qe7 31.b6 Qd7 1–0. Fritz 6 – Doctor? 3.0, 2004.

5.Ne5 Nc6?? 6.Nc6+= bc6 7.e3 Nf6 8.d3 Bg4 9.Be2 Be2 10.Qe2 Qd6 (10...a5 11.ba5 Ra5 12.Nc3=) 11.de4 de4 12.Nc3 Qe6 13.0–0 Nd5 (13...a5 14.Rfb1+=) 14.Na4 (14.Qc4 f5+/–) 14...Nf6 15.Nc5 Bc5= 16.bc5 0–0 17.Bf6 Qf6 18.c3 Qc3=+ 19.Rfc1 Qe5 20.Qg4 Rad8 21.Rc4?? Qa1 (22.Rc1 Qc1 23.Qd1 Rd1) 0–1. badboy1221 – jpsingh, Live Game Caissa's Web, 2004.

5.Ne5 f6 6.c4 fe5 7.cd5 Nf6 –+.

4.Nf3 f6

5.e3 a5 6.b5 Bd7 7.c4 c6 8.bc6 Bc6 9.cd5 Bd5 10.Be2 Nc6 11.0–0 Nh6 12.Nc3 Rd8 13.d4 e4 14.Nd2 Nf7 15.Nd5 Rd5 16.Bc4 Rd7 17.Qb3 Nfd8 (17...Nd6 18.Be6 Rc7 19.Rac1+–) 18.Rac1 g6 (18...f5!?+–) 19.Bb5 Rc7? (19...Qf7 20.Qf7 Kf7 21.Ne4 Bg7+–) 20.d5 Bg7 21.dc6 Nc6 (21...bc6 22.Qc4 f5 23.Bg7 Qg7 24.Nb3+–) 22.Bc6 Rc6 23.Rc6 bc6 24.Rc1 Qd7 (24...c5 25.Qd5 Qd7 26.Qc5+–) 25.Ne4 f5 (25...Qd5 26.Nf6 Bf6 27.Qb8 Qd8 28.Qd8 Bd8 29.Bh8 Kd7+–) 26.Bg7 Qg7 (26...fe4 27.Bh8 Qd5 28.Qb8 Qd8+–) 27.Nd6 (27.Qb8 Kf7 28.Ng5 Ke7 29.Qc7 Ke8 30.Qg7 Kd8 31.Ne6 Ke8 32.Rc6 h6 33.Rc8) 27...Kd7 28.Rd1 Kc7 29.Qb7 Kd8 30.Qg7 (30.Qg7 Re8 31.Nb5 Kc8 32.Qc7; 30.Nf7 Ke8 31.Rd8) 1–0. Fournier,Frederic – Fagoal, Partie evaluee, 3m + 1s, 2008.

5.e3 Be6 6.d4 ed4 (6...e4 7.Nfd2=) 7.Nd4+= Bf7 8.Nd2 g6 9.b5 Bg7 10.c4 Nd7 11.Qc2 Ne5 12.cd5 Bd5 13.e4 (13.Rc1 0–0–0+=) 13...f5= 14.Be2 (14.f3 fe4 15.fe4 Ng4=) 14...fe4=+ 15.Ne4 Nf6 16.Nf6= Bf6 17.0–0 0–0 18.f4 Nf7 19.Kh1 Qd7 20.Rad1 Nd6 21.Nf3 Nf5?? 22.Rd5!+– Qe6 23.Rf5 Qf5 24.Qc4 Kg7 25.Qc7 Kh6 26.Ng5 1–0. Wolf – Krueger, corr DDR, 1981.

4.g3 Nf6

5.Bg2 Nbd7 6.Nf3 =+.

5.Bg2 e4 6.Nc3 d4 7.Na2 c5=+ 8.bc5 Qc5 9.e3 Bg4 10.Ne2 de3 11.de3 Nc6 12.Bf6+= gf6 13.Be4 Rd8 14.Bd3 Qa3 15.Qc1 Qc5 16.Qb2 Qa5 17.Nac3 Qb4 18.Qb4 Nb4 19.Kd2+= Rg8? 20.Nd4 a6 21.Ne4 Be7 22.Rhb1 Bf3?? 23.Nf6 (23...Bf6 24.Rb4+/–) 1–0. mwojo (1745) – pauldopson, net–chess.com, 2004.

5.Bg2 g6 6.Nf3= Nbd7 7.0–0 Bg7 8.d4 e4 9.Ne5 0–0 10.c4 c6 11.Qb3 dc4 12.Nc4 Nd5 13.Nc3 Bd4 14.Nd5+/– Bf2?? 15.Rf2+– cd5 16.Ne3 (16...Nb6 17.Nd5 Nd5 18.Qd5+–) 1–0. oldsage – shoulders, ChessWorld.net, 2006.

3.a3 d6

4.Nc3 A) 4...Be6 A1) 5.e4 a5 6.Nd5 Qd8 7.Nf3 Nf6 8.Nf6 Qf6=; A2) 5.Nf3 Nf6 6.e4 Nbd7 7.Be2 d5 8.Nb5 Kd8=; B) 4...a5 B1) 5.e4 Be6 6.Nd5 Qd8 7.b5 c6 8.Nc3 d5=; B2) 5.b5 Nf6 6.e4 Nbd7 7.Bc4 Nb6 8.Ba2 Bg4=; B3) 5.Nd5 Qd8 6.b5 c6 7.Nc3 d5 8.Nf3 e4=+; B4) 5.Nf3 e4 6.Nd4 Nf6 7.b5 d5 8.e3 Qd8=; C) 4...Nf6 5.e4 Nc6 6.Bb5 a6 7.Bc4 Nd4 8.Nge2 b5=.

4.c4 b6 5.Nc3 c6 6.g3 Bb7 7.Bg2 Nf6 8.d3 h5 9.Nf3 c5 (9...d5 10.cd5 cd5 11.Ne5+=) 10.Qa4 Qd7 11.Qc2 (11.Qd7 Nbd7 12.0–0 Be7+=) 11...a6 12.e4 Nc6 13.b5 Nd4 14.Nd4 cd4 15.ba6 Ba6 16.Ne2 h4 17.gh4 Rh4 18.Ng3 g6 (18...b5 19.Bd4 bc4 20.dc4 ed4 21.e5=) 19.f3 (better is 19.Bd4!? ed4 20.e5=) 19...b5–/+ 20.cb5 Qb5 21.a4 (21.Bc1!? Rc8 22.Qd1–/+) 21...Qd3 22.Qc6 Ke7 23.Bf1? (better is 23.Ra3 Qb1 24.Qc1 Qc1 25.Bc1–+) 23...Qe3 24.Ne2 Be2 25.Be2 (25.Qb7 Nd7 26.Bc1 Qc3 27.Ke2–+) 25...d3 26.Kd1 Qe2 27.Kc1 Bh6 (27...Rh2 28.Qb7 Nd7 29.Qd7 Kd7 30.Rh2 Qe1) 28.Kb1 Rb8 29.Qc3 Be3 (29...Nd5 30.ed5 Rc4 31.Qb3 Rb3 32.Ra2 d2 33.Ka1 d1Q 34.Rd1 Qd1 35.Bc1 Rc1) 30.Re1 (30.Ra3 Qf3 31.Re1 d2 32.Qd2 Qe4 33.Qd3 Rb2 34.Ka1 Rb3 35.Rb3 Bd4 36.Qd4 Qd4 37.Kb1 Qd5–+) 30...Qc2! 31.Qc2 dc2 32.Kc2 (32.Ka2 Nd5! 33.Re2 f5–+) 32...Rh2 33.Kd3 Rhb2 (33...Rhb2 34.Re3 R8b3 35.Kc4 Re3–+) 0–1. Morgenstern,Frank – Borgenau,Alexander, Blankenburger op–B, 2007.

4.c4 Nf6 5.Nf3 =.

4.d4 ed4 5.Qd4 Bf5 6.Qd5 =.

4.d4 e4 5.e3 g6 6.c4 f5 7.Ne2 Bg7 8.Nf4 Bd7 9.Nc3 Nc6 10.b5 Na5 11.Qa4 b6 12.Qc2 c6 13.bc6 Bc6 14.Ncd5 Bd5 15.Nd5 Qg5?? 16.Nc7+– (16...Kf7 17.Na8+–) 1–0. miehnekort – pato_lucas222, Yahoo, 2005.

4.e3 a5 A) 5.Nf3 ab4 6.ab4 Ra1 7.Ba1 Nf6 8.Be2 Nd5=; B) 5.Nc3 Be6 (5...Nf6 6.Nf3 d5 7.b5 Qe6 8.Ng5 Qd7=) 6.Nf3 Nf6 7.d4 e4 8.d5 Bg4=; C) 5.Be2 Qg5 (5...Be6 6.Nf3 ab4 7.ab4 Ra1 8.Ba1 Nf6=; 5...ab4 6.ab4 Ra1 7.Ba1 Qg5 8.Bf1 Qg6=) 6.Bf3 ab4 7.ab4 Ra1 8.Ba1 c6=+; D) 5.b5 Nf6 6.Be2 Bf5 7.Nf3 Nbd7 8.0–0 Rd8=.

4.e3 a6 A) 5.Be2 Qg5 (5...Nf6 6.Nf3 e4 7.Nd4 c5 8.Nb3 Nc6=) 6.Bf3 Nf6 7.Nc3 Be7 8.Nge2 0–0=; B) 5.Bc4 Nf6 (5...Nd7 6.Bb3 Ngf6 7.Ne2 c6 8.d4 a5=) 6.Nc3 Nbd7 7.Nf3 e4 8.Ng5 Ne5=; C) 5.Nc3 Nf6 6.Bc4 Be6 7.Be6 Qe6 8.e4 Nc6=; D4) 5.Ne2 Nd7 (5...Bg4 6.h3 Bf5 7.d4 Nf6 8.Ng3 Bg6=; 5...Nf6 6.d4 Bg4 7.d5 c6 8.c4 Qc7=; 5...Nc6 6.d4 Nf6 7.d5 Nd8 8.Nec3 Ng4=; 5...c5 6.bc5 dc5 7.Nbc3 Nf6 8.Ng3 Be6=) 6.d4 Nb6 7.Nd2 Na4 8.Bc1 Nf6=; E) 5.d4 ed4 (5...Nf6 6.Ne2 Bg4 7.h3 Bh5 8.g4 Bg6=) 6.Bd4 Nc6 7.Nf3 Nd4 8.Nd4 Nf6=; F) 5.Nf3 e4 (5...Nf6 6.Nc3 e4 7.Nd4 c5 8.Nde2 b5=) 6.Nd4 Nf6 7.d3 c5 8.bc5 dc5=.

4.e3 c6 5.Nf3 f6 6.d4 g6 7.c4 Nh6 8.Nc3 Nf7 9.Qb3 Bg7 10.Be2 0–0 11.h4 Rd8 12.h5 g5 13.0–0–0 h6 14.c5 dc5 15.dc5 Be6 16.Bc4 Bc4 17.Qc4 Nd7 18.e4 Nf8 19.Ne2 Qe6 20.Qc2 Rd1 21.Rd1 Rd8 22.Rd8 Nd8 23.Ng3 Nf7 24.Nf5 Qe8 25.Qd3 Qd7 26.Kc2 Qd3 27.Kd3 Ne6 28.g3 Bf8 29.Kc4 Nfd8 30.a4 Kf7 31.Ba3 Ke8 32.b5 Kd7 33.Nh2 a6 34.Ng4 ab5 35.ab5 Nf7 36.Nf6 Kc7 37.Ng4 cb5 38.Kb5 Ned8 39.Bb2 Nc6 40.Nfe3 Bg7 41.Nd5 Kd7 42.Kb6 Nfd8 43.Nde3 Nd4 44.Bd4 ed4 45.Nf5 d3?? 46.Ng7 Ke7 47.Nf5 Ke6 48.Nfh6 d2 49.Ne3 Ke5 50.Kc7 Ne6 51.Kb7 Nc5 52.Kc6 Ne4 53.Nhg4 Kd4 54.h6 Nf2 55.Nf2 Ke3 56.Nd1 Ke2 57.Nc3 Kd3 58.Nd1 Kc2?? 59.Nf2+– d1Q 60.Nd1 Kd1 61.h7 Ke2 62.h8Q Kf3 63.Qf6 Kg4 64.Qg5 Kg5= 65.Kd5 Kf5 66.Kd4 Kg4 ½–½. ferminkatcho (1800) – chrischess (1750), kurnik, 2012.

4.e3 Bd7 A) 5.Nf3 a5 (5...e4 6.Nd4 Nf6 7.Be2 c5 8.Nb5 Na6+=; 5...Nf6 6.Be2 a5 7.b5 Bf5 8.0–0 Nbd7+=) 6.b5 Nf6 7.Be2 c6 8.0–0 e4=; B) 5.Bc4 b5 (5...Nf6 6.Nf3 Nc6 7.Nc3 0–0–0 8.Nd5 Nd5=; 5...a5 6.b5 Nf6 7.Nc3 c6 8.Nf3 d5=) 6.Be2 a5 7.Nf3 c6 8.Nc3 d5=; C) 5.Nc3 Nf6 (5...Be6 6.Nf3 Nf6 7.Ng5 d5 8.Be2 a5=; 5...a5 6.b5 Nf6 7.Bc4 c6 8.bc6 bc6=) 6.Nf3 e4 7.Nd4 c5 8.Ncb5 Na6=.

4.e3 Bf5 5.Nf3 Nd7 6.Be2 g6 7.d3 Bg7 8.h3 Ngf6 9.e4 Be6 10.c4 0–0 11.Nc3 Nh5 12.g3 c6 13.Bc1 f5 14.Bg5 Qe8 15.ef5 Bf5 16.g4 (better is 16.Nh4!? e4 17.d4=) 16...e4–/+ 17.de4?? (better is 17.Ne4 Be4 18.de4 Ba1 19.Qa1 Qe4 20.Qd4 Qb1 21.Qd1 Qd1 22.Kd1–+) 17...Bc3–+ 18.Kf1 Be4 19.Rc1 Bf6 20.gh5 (20.Bf6 Nhf6 (20...Rf6?! 21.gh5 Ne5 22.Ne5 Bh1 23.Ng4–+; 20...Ndf6?! 21.gh5 Nh5 22.Rg1–+) 21.Qd6 Ng4 22.hg4 Bf3 (22...Rf3?! 23.Bf3 Bf3 24.Rh3 Bg4 25.Re3–+) 23.Bf3 Rf3–+) 20...Bf3 (20...Bg5!? 21.Rc3–+) 21.Bf3 Bg5 22.hg6 (22.Rc3 Qe5 23.Qc2 Qf6–+) 22...Qg6 (better is 22...Bc1 23.gh7 Kh8–+) 23.Rc3 Ne5 24.Bh5 Qf5 25.Qe1 (25.Rh2–+) 25...Bh4 26.Rg1 (26.Bg4 Qf2 27.Qf2 Rf2 28.Kg1 Raf8–+) 26...Kh8 27.Bg4 (27.Rg2 Qh5 28.Qe2 Nf3–+) 27...Qf2 28.Qf2 Rf2 29.Ke1 Rc2 (29...Rc2 30.Rcg3 Rc3–+) 0–1. Fournier,Frederic (1685) – LucasGrijander (1655), Active, 2006.

4.e3 Nf6 A) 5.Nc3 a5 (5...Nc6 6.Nf3 e4 7.b5 Ne5 8.Ne5 de5=) 6.b5 d5 7.Nf3 Qe6 8.Ng5 Qd7=; B) 5.d4 Nbd7 (5...ed4 6.Bd4 Nc6 7.Bb5 Bd7 8.Nf3 a5=; 5...a5 6.b5 Bf5 7.Ne2 Nbd7 8.Ng3 Bg4=; 5...Bf5 6.Nd2 e4 7.c4 Nbd7 8.Ne2 c6=) 6.Be2 e4 7.d5 Ne5 8.Nd2 Nd5=; C) 5.Be2 Bf5 (5...Be6 6.Nf3 Nbd7 7.0–0 0–0–0 8.c4 Nb6=) 6.Nf3 Qd8 7.0–0 Be7 8.d3 0–0=; D) 5.Nf3 a5 6.Be2 ab4 7.ab4 Ra1 8.Ba1 Nbd7=.

4.e4 a5 A) 5.Nf3 ab4 6.ab4 Ra1 7.Ba1 Nf6 8.Nc3 Nc6=; B) 5.b5 Nd7 6.Nc3 Ngf6 7.Bc4 Nb6 8.Ba2 Bd7=; C) 5.Bc4 ab4 6.ab4 Ra1 7.Ba1 Na6 8.Ba6 ba6=; D) 5.Ne2 ab4 6.ab4 Ra1 7.Ba1 Na6 8.b5 Nc5=; E) 5.h3 ab4 6.ab4 Ra1 7.Ba1 Nf6 8.Nc3 c6=; F) 5.Nc3 Nf6 6.Nf3 ab4 7.ab4 Ra1 8.Qa1 Qd8=.

4.e4 a6 5.Nc3 Nd7 6.Nf3 b6 7.Bc4 h6 8.0–0 Ngf6 9.Re1 Bb7 10.d4 ed4 11.Nd5 Qd8 12.e5 Ne5 13.Ne5+– de5 14.Re5 Be7?? 15.Ne7 Kf8 16.Qd4 b5 17.Bb3 Qd5 18.Nd5 (18...Bd5 19.Rd5+–) 1–0. b4_player – twlssn03, gamecolony.com, 2006.

4.e4 c6 =.

4.e4 Be6 5.Nf3 Nf6 6.Nc3 g6 7.Bb5 c6 8.Ba4 Bg7 9.Ng5 0–0 10.Ne6 fe6 11.0–0 d5 12.ed5 ed5 13.Qe2 e4 14.d4 Nbd7 15.Bb3 Kh8 16.Rad1 Nh5 17.Qg4 Rf4 18.Qe2 Qg5 19.Bc1+/– Raf8 20.g3 Qe7? 21.gf4+– Qh4 22.f3 Rf4 23.Bf4 Nf4 24.Qe1 Nh3 25.Kg2 Nf4 26.Kh1 Qh3 27.Qg3 Qg3 28.hg3 Nh5 29.Kg2 ef3 30.Rf3 Nhf6 31.Re1 h5 32.b5 Ng4 33.Rf7 Bd4 34.Re8 (34...Nf8 35.Ref8#) 1–0. pierre – joju, internet, 2008.

4.e4 Qf6 5.d4 ed4 6.Bd4 Qf4 7.Nc3 c5 8.Be3 Qe5 9.Nd5 cb4?? (Better is 9...Kd8 10.bc5 Qe4 11.cd6 Bd6+/–) 10.Nc7+– Kd8 11.Na8 Qa5 (11...Qe4 12.Nf3 ba3+–) 12.Qd5 Qb6 (12...Qd5 13.ed5 Bf5+–) 13.Nb6 ab6 14.Qf7 Nh6 15.Bb6 1–0. market (1845) – girishs, GameColony.com, 2002.

4.Nf3 b5 5.e3 c6 6.Be2 g5 7.h3 h5 8.d3 h4 9.Nbd2 f6 10.c4 a6 11.cb5 cb5 12.Rc1 Bb7 13.Qc2 Nc6 14.Nb3 Nh6 15.d4 Rc8 16.Qd3?? (16.Qg6 Qf7 17.Qd3 Be7+/–) 16...ed4?? (better is 16...e4 17.Qd2 ef3 18.Bf3 Rg8–+) 17.Nfd4 Nd4 18.Qd4 Rc1= 19.Bc1 Bg2–/+ 20.Rg1 Nf5 21.Qg4 Be4 22.Nd4 Nd4–/+ 23.ed4 Bd3 24.Kd2 Bc4?? 25.Bc4+– f5 26.Qf5 Bh6 27.Re1 g4+– 28.Kd1 Qe1 29.Ke1 Bc1 30.Qf7 Kd8 31.Be6 Re8 32.Qd7 1–0. Fournier,Frederic (1665) – rickmgcxnl(C), Active, 2006.

4.Nf3 e4 5.Nd4 c5 6.Nb3 Nc6 7.b5 Ne5 8.e3 Be6 =.

4.Nf3 Qf6 5.e4 Bg4 6.Bb5 c6 (6...Nd7 7.d4=) 7.Be2+= Nh6 8.d4 Bf3 9.Bf3 ed4 (9...Nd7 10.0–0+=) 10.Bd4+/– Qe6 11.0–0 Nd7 12.Nc3 Ne5 13.Be2 Be7 (Better is 13...g5!?+/–) 14.f4+– c5 15.Nd5 0–0–0 16.Ne7 Qe7 17.Bb2 Ng6 18.Bg7 Nf5 19.ef5 Qe3 20.Kh1 Nf4 21.Bh8 Rh8 22.Bf3 Kc7 23.g3 Nh3 24.Qd5 Rb8 25.Rae1 Qa3 26.Re7 Kb6 27.Rb7 Ka6 28.Qd6 1–0. b4_player (2060) – the_show_stealer (1630), GameColony.com, 2002.

4.Nf3 Nf6 5.e3 a5 6.Be2 ab4 7.ab4 Ra1 8.Ba1 Nd5 =.

4.g3 Nf6 5.Bg2 d5 6.e3 e4 7.d3 Bg4 8.f3 ef3–/+ 9.Bf3 Qe3 10.Qe2 Qe2 11.Ke2 Bf3 12.Nf3 Be7 13.Nbd2 Nbd7 14.Kf2 0–0 15.c4 dc4 16.Nc4 Ng4 17.Kg2 Bd6 18.Rhe1=+ Rfe8 19.h3 Re1 20.Re1+= Ngf6 21.g4 h6 22.Kf2 Bf8 23.Na5 Rb8 24.Bd4 b6 25.Nc6= Ra8 26.a4 a6 27.Be5 Ne5 28.Nfe5 Re8 29.d4 Bd6 30.Kf3 Nd7 31.Re2 Be5 32.de5 g5 33.Ke4 f6–/+ 34.Kf5 fe5 35.Nd4? Kf7 36.Nf3? c5 37.Rd2 Re7 38.bc5 Nc5 39.Ne5–/+ Kg7 40.Rd4 Nb7 41.Rb4?? Nd6 0–1. coloplayah (2070) – zekota (2125), net–chess.com, 2006.

4.e4 Nc6

5.Nc3 f5 6.b5 Na5 7.Nf3 fe4 8.Ne4 Bf5 +=.

5.Nc3 Nf6 6.Bb5 a6 7.Bc4 Be6 8.Nd5 Qd7 =.

5.Nf3 Nf6 6.b5 Nd4 7.Nd4 ed4 8.Bd4 Qe4 =.

5.Nf3 Nh6 6.Nc3 Nf7 7.d4 ed4+= 8.Nd4 Nd4 9.Qd4 Nd6? 10.Be2 a6?? 11.Nd5+– (11...Qd8 12.Bh5 Nf7 13.Qc4 Bb4 14.ab4+– (14.Nb4?! 0–0+–)) 1–0. nbh999 (1970) – Klaus Behrmann (2045), ChessWorld.net, 2003.

4.e4 Nf6

5.Nc3 a5 6.Nf3 Bg4 7.Be2 Nc6 8.Nd5 Nd5 +=.

5.Nc3 Nc6 6.Bb5 Qd7 7.Nge2 a6 8.Bc4 b5 =.

5.Nc3 Qd7 6.Nf3+= Be7 7.d4 h6? (Better is 7...Nc6+=) 8.de5+– de5 9.Ne5 Qd1 10.Rd1 0–0 11.Bc4 Nc6 (11...Nbd7 12.Ng6 Re8 13.Ne7 Re7 14.f3+–) 12.Nc6 bc6 13.e5 Nh5 14.Be2 Nf4 15.Bf3 Ba6 16.Bc1 Rab8 17.Bf4 g5 18.Be3 f6 19.Rd7 Bd8 20.Ba7 Rb7 21.Bc5 Re8 22.Bc6 Re5 23.Kd2 Rb8 24.Ba7 Rc8 25.b5 Bb5 26.Nb5 Rc5 27.Bc5 Be7 28.Bd5 Kf8 29.Re7 Rd8 30.Rc7 Ke8 31.Re1# 1–0. b4_player (2215) – idlethreat7984, GameColony.com, 2003.

5.Nc3 Nbd7 6.Nf3 Nb6 7.Be2 Bd7 8.0–0 Na4 =.

5.Nc3 Be6 6.Nf3 Nbd7 7.Be2 d5 8.Nb5 Kd8 =.

3.a3 f5

4.c4 Nf6 5.g3 g6 6.Bg2 Bg7 (6...Nc6 7.Nc3 Bg7 8.Nh3 a5 9.0–0 Nd4 10.Nb5 Nb5 11.cb5 ab4; 6...Bh6 7.Nc3 a5 8.b5 d6 9.Nf3 0–0 10.0–0 Nbd7 11.d3 Nc5) 7.Nc3 (7.Nh3 Nc6 8.0–0 a6 9.Nc3 0–0 10.Nd5 Nd5 11.Bd5 Kh8) 7...a5 (7...0–0 8.Nh3 Nc6 9.0–0 a6 10.c5 d6 11.Ng5 Be6) 8.b5 'White gets more space' 8...d6 (8...0–0 9.Qb3 e4 10.Nh3 d6 11.Nf4 Nbd7) 9.Nf3 0–0 (9...Nbd7 10.0–0 0–0 11.Ng5 Nc5) 10.0–0 Nbd7 11.Qc2 (11.Ng5 Nc5) 11...Ra7 (11...Rb8; 11...Nb6=) 12.a4 b6 13.Nd5 (13.d3 Bb7=) 13...Nd5 14.cd5 'White has new doubled pawns: d2+d5. Black has a new backward pawn: c7' 14...Nf6 (14...Bb7 15.Qc4=) 15.d3 'Controls e4' 15...Bb7 (15...f4 16.e4=) 16.e4 '+/=' 16...Nh5 (16...Bh6 17.Ra3+=; 16...Nd7 17.Ba3 Nc5 18.Nd2) 17.Rac1 Rf7 18.Rce1 fe4 19.de4 Bh6 20.Nd2 Bc8 21.Nc4 Bg4 22.f3 Bd7 23.Qc3 Ng7 '?' (better is 23...Bg7+/– 24.Qd2) 24.f4 '+–' 24...ef4 25.e5 fg3 '?' (25...Bf5 26.ed6 Qd8 27.dc7 Rac7 28.d6+–) 26.Rf7 Qf7 27.hg3 Bf5 (27...Qf5+– is the last straw) 28.ed6 cd6 (28...Qf8 does not win a prize 29.Re7 g5 30.Qe1+–) 29.Nd6 Qc7 (29...Bd2 a last effort to resist the inevitable 30.Qd2 Qc7+–) 30.Re8 '!' 'Deflection: g7' 30...Ne8N 31.Qh8# 1–0. Miralles,Gilles – Prie,Eric, St Maxime, 1983.

4.e4 d6? 5.ef5 Bf5 6.Qf3! Bc8 (6...Bc2?? 7.Qb7 Be4 8.Qe4+–) 7.Bc4 Nf6 8.Nh3 h6 (8...c6 9.0–0=) 9.0–0 Nc6 10.Qe3 Be6 (10...Bf5 11.Bd3 Qd7 12.f4 Bd3 13.Qd3=) 11.Be6+= Qe6 12.f4 0–0–0 (12...Qc4 13.Nc3+=) 13.b5+/– Nb8 14.Qa7 Qc4 15.Qa5 Qc2?? 16.Rc1+– b6 17.Qa7 Qb2 18.Rc7 1–0. lucya (2105) – zoko (1700), GameColony.com, 2002.

4.e4 fe4 5.Qh5 Kd8 6.Qe5 Qe5 7.Be5 d5 =.

4.c4 g6

5.d4 d6 6.Nc3 Nf6 7.de5 de5 8.Nf3 =.

5.d4 d6 6.e3 Nf6 7.Nf3 ed4 8.Bd4 =.

5.d4 d6 6.e3 Bg7 7.Nc3 (7.Be2 ed4 8.Bd4 Nf6=) 7...Nd7 (7...Nf6 8.de5 de5 9.Nf3=) 8.de5 (8.Nf3 e4 9.Nd2 Ngf6+=) 8...Ne5 (8...de5 9.Nf3+=) 9.f4= Ng4 10.Nd5 Qf7 (10...Qd7 11.Bg7 Qg7 12.Qd4 Qd4 13.ed4+=) 11.Bg7+= Qg7 12.Qd4 Qd4 13.ed4 Kd7 (13...Kd8 14.Nf3+=) 14.Bd3 b5 (14...N8f6 15.Nf6 Nf6 16.Kf1=) 15.c5 (15.h3 bc4 16.Bc4 N4f6+=) 15...a6 (15...c6 16.h3 N4f6 17.Ne3=) 16.h3 N4f6 17.Ne3 Bb7 18.Kf2 (18.a4 Re8 19.Kd2 dc5 20.dc5 Ne4 21.Be4 Re4 (worse is 21...Be4 22.Ne2+=; worse is 21...fe4 22.ab5 ab5 23.Ne2+/–) 22.ab5 ab5+=) 18...Be4 19.Be2 Re8 (19...Ne7 20.Nf3=) 20.a4 Bb7 (20...Bc6 21.ab5 ab5 22.Bd3=) 21.ab5+= Ne4 22.Ke1 ab5 23.Bb5 c6 (23...Bc6 24.Bc6 Kc6 25.Ne2+=) 24.Ra7 Kc8 25.Ba6 Ng3? (25...Ba6 26.Ra6 Kb7+=) 26.Bb7 (26.Bb7 Kc7 27.Ba6 Kb8 28.Rb7 Ka8 29.Kd2 Re3 30.Ke3 (30.cd6?! Re6=) 30...Nh1 31.Rg7+– (31.cd6?! Nf6+–)) 1–0. Woelfelschneider,Peter – Pleschke,Helmut, SEV, 2001.

5.d4 Bg7 6.Nc3 Nf6 7.de5 Qe5 8.Qb3 Qe6 9.Nd5+/– Na6? 10.b5+– c6 11.ba6 cd5 12.ab7 Rb8 13.bc8Q Rc8 14.cd5 Qd6 15.Nf3 0–0 16.Be5 Qc5 17.e3 d6 18.Bd4 Qc7 19.Be2 Qc1 20.Rc1 Rc1 21.Bd1 Rfc8 22.0–0 Ne4 23.Bg7 Kg7 24.Nd4 Kh6 25.Ne6 Nd2 26.Qb2 R8c3 27.Qd2 (27...Rd1 28.Rd1 Rd3 29.Qd3 Kh5 30.e4 g5 31.Qh3 Kg6 32.Qf5 Kh5 33.Qg5#) 1–0. Buczinski,Henryk – Kowalik,J, Siemianowice Slaskie, 1992.

4.e3 Nf6

5.c4 d6 6.Nc3 Nc6 7.d3 g6 8.Nf3 Bg7 9.Be2 Be6 10.0–0 Nd8 11.Nd2 0–0= 12.Bf3 c6 13.g3 Nf7 14.Qe2 Rad8 15.Bg2 Rfe8 16.Rfe1 Qd7 17.b5 h6 18.a4 d5 19.cd5 cd5 20.d4 ed4 21.ed4 Ne4 22.Nb3 Rc8 23.Rac1 b6 24.f3 Ned6 25.Qd3 Nc4 26.Ba1 Nfd6 27.Re2 Bf7 ½–½. Seifert – Ziese,Gerhard, corr SOK–89–48, 1989.

5.c4 d6 6.Nf3 =.

5.c4 g6 6.d4 ed4 7.Bd4 Bg7 8.Nf3 Nc6 9.Be2 Nd4 10.Nd4 0–0 11.Ra2 d6 12.0–0 Ne4 13.Nf3 Be6 14.Rc2 Rad8 15.Qc1 Bf7 16.Rd1 Rfe8 17.Nbd2? Nf2!–+ 18.Rf1? Ng4 19.Re1 Qe3 20.Kh1 Nf2 21.Kg1 Nh3 22.Kh1 Qg1! 23.Rg1 Nf2# 0–1. Frenzel,Lothar – Bothe,E, corr sok, 1997.

5.Bc4 d6 6.Nf3 Nc6 7.0–0 g6 8.Nc3 Nd8 9.d3 c6 10.Nd2 Bg7 11.Ne2 Be6 12.Be6 Ne6 13.c4 Ng5 14.Qb3 0–0 15.f3 Rae8 16.e4 Nf7 (16...Bh6 17.c5 Nf7 18.f4 ef4 19.Bf6 Qf6 20.Rad1=+). Kross – Ziese,Gerhard, corr SOK–89–48, 1989.

5.Nf3 d6 6.Nc3 g6 7.d4 Bg7 8.de5+= de5 9.Bc4 a5 10.b5 Nbd7 11.Ng5 h6 12.Ne6 Nb6 13.Ng7 Qg7 14.Bb3 Bd7 15.a4 0–0–0= 16.Qf3 Kb8 17.0–0 Bc8 18.Rfd1 Qe7 19.Qg3 g5= 20.Ba3 Rd1 21.Nd1 Qe8 22.Bb2 Nbd7 23.f3 Qe7 24.Ba3 Qe8 25.Qe1 b6 26.c4 e4 27.f4 gf4 28.ef4 Qg6 29.Ne3 Ng4 30.Nd5 Bb7= 31.h3 Ngf6 32.Ne3 Nh5 33.Qf2 Ndf6 34.c5 Rd8 35.cb6 cb6 36.Nf5! Ka7 37.Ne3 Qg3 38.Qg3 Ng3 39.Bc4 Rd2 40.Re1 Nd7 41.Bc1 Rd6 42.Kf2 Nh5 43.Nf5 (43…Rf6 44.g4+–) 1–0. Erlandsson,Harry – Trigance,Eric, corr 3GMM–14, 1996.

5.Nf3 d6 6.c4 Nc6 7.Be2 g6 8.d4+= e4 9.Nfd2 Bg7 10.Nc3 0–0 11.0–0 Nd8 12.Re1 c6 13.Qb3 Nd7 14.c5 d5= 15.g3 Nf6 16.b5 Be6 17.a4 g5 18.f4 ef3 19.Bf3 Nf7 20.Nd1 Ne4 21.Qc2 g4 22.Bg2 h5 23.Nf2 h4 24.Nfe4 fe4 25.Bf1 hg3–/+ 26.hg3 Qc7 27.Kg2=+ Ng5 28.Be2 Rf3 29.Nf1 Raf8 30.Bf3 ef3 31.Kh2 f2 32.Re2 Ne4 33.b6 ab6 34.cb6 Qf7 35.Kg2 Qf3 36.Kh2 Rf6 (37.Rf2 Rh6 38.Kg1 Rh1#) 0–1. Scholz,Guenther – Ziese,Gerhard, BdF, 1986.

4.e4 Nh6

5.c4 fe4= 6.Nc3 d6 7.Ne4 Nd7 8.Nf3 g6 9.d4+= Bg7 10.d5 0–0 11.Be2 Nf6 12.Ng3 Nf5 13.0–0 Ng3 14.hg3 Ng4 15.Qb3 Nh6 16.Rad1 Bg4 17.Qe3 Bd7 18.Bd3 Ng4 19.Qe2 Rae8 20.Nd2 Qg5 21.f3 Qe3–+ 22.Rf2 Qf2 23.Qf2 Nf2 24.Kf2 Bf5 25.Ne4 Rc8 26.Ke2 Rfd8 27.g4 Be4 28.Be4 c5 29.Bd3?? e4!–+ (30.Bg7 ed3 (30...Kg7?! 31.fe4 Rf8 32.g5=+) 31.Kd3 Kg7–+) 0–1. Fischer,A – Ziese,Gerhard, corr SOK–90–68, 1990.

5.Bc4+= d6 6.Nc3 c6 7.d3 g6 8.Nf3+= Bg7 9.Qd2 Nf7 10.0–0 Be6 11.Be6 Qe6 12.ef5 gf5 13.Rae1 0–0 14.Qe2 Nd7 15.Nd1 Rfe8 16.c4 Nf8 17.Nh4 f4 18.Nc3 Rad8 19.Qh5 Qh6 20.Qg4 Qg5 21.Qg5 Ng5 22.Nf5 Bf6 23.Ne4 Ne4 24.de4 Kf7 25.Rd1 Ke6= 26.g4 Ng6 27.Rd2 (27.Rd3 Ne7+=) ½–½. Trokenheim,Marek – Ziese,Gerhard, corr SOK–93–96, 1994.

5.ef5 Nf5 6.Nf3 c6 7.Be2 d6 8.0–0 g6 9.Nc3 Nd7 10.d3 Bg7 11.Ne1 0–0 12.Ne4 d5 13.Nd2 a5 14.c4 ab4 15.ab4 Ra1 16.Qa1 Qb4 17.Bc3 Qd6 18.cd5 cd5 19.Qb2 Nc5 20.Ndf3 Na4 21.Bb4 Nb2 22.Bd6 Nd6 23.Nc2 Nb5 24.Rb1 Nc3 25.Rb2 Ne2 26.Kf1 e4 (27.de4 de4–+) 0–1. Hasler,Ueli – Bendig,Frank (2260), CiF, 2005.

5.ef5 Nf5 6.Nf3 Nc6 =.

4.Nf3 d6

5.d4 e4=+ 6.Nfd2 Nf6 7.e3= g6 8.Be2 Bg7 9.Nc3 0–0 10.Bc4 Be6 11.d5 Bf7 12.Qe2 Nbd7=+ 13.0–0–0 Nb6–/+ 14.f3 Nfd5 15.Ndb1?? Nc4–+ 16.Qc4 Nc3 17.Qf1 Na2 18.Kd2 Bb2 19.c3 Bb3 20.Re1 Qe5 21.f4 Qd5 22.Ke2 Bc4 23.Kf2 Bf1 24.Rhf1 Nc3 (25.Nc3 Bc3–+) 0–1. Fiedler,A – Ziese,Gerhard, corr SOK–89–37, 1989.

5.e3 Nf6 6.Be2 g6 7.0–0 Bg7 8.d4 e4 9.Nfd2 0–0 10.c4 d5 11.Nc3 c6 12.Qb3 Be6 13.b5 Nbd7 14.c5 Rfc8 15.bc6 bc6 16.Qa4 Rab8 17.Rab1 Nf8 18.Na2 Qc7 19.Nb4 Qd7 20.Bc3 h6 21.Ba6 Rc7 22.Nc2 Rb1 23.Rb1+/– Qe8 24.Rb7 Qf7 25.Rc7 Qc7 26.Ba5 Qb8 27.Nb4 Bd7 28.Nc6 Qe8 29.Bb7 Ne6 30.Qb5 Bf8 31.Nb3+– f4 32.Qa6 g5 33.Ne5 Bb5 34.Qa7 Ba4 35.Qb6 Kg7 36.Bc6 Bc6 37.Qc6 Qc6 38.Nc6 fe3 39.fe3 Ng4 40.Bd2 Kf7 41.h3 Nf6 42.Ba5 Ke8 43.Bb6 g4 44.a4 gh3 45.gh3 Kd7 46.Na7 Nc7 47.c6 Kd8 48.Na5 Nfe8 49.Nb7 Ke7 50.Nb5 Na6 51.Nc5 Nb4 52.c7 Nc7 53.Bc7 Kf7 54.Bd6 Bd6 55.Nd6 Ke7 56.Nf5 Kf6 57.Nh6 Nc6 58.Ng4 1–0. marekt – darius, ChessWorld.net, 2003.

3.a3 f6

4.e4 Nc6 5.Nf3 Nh6 6.Nc3 Nf7 7.d4 ed4 8.Nd4 Nd4 9.Qd4 Nd6? 10.Be2 a6?? 11.Nd5+– (11...Qd8 12.Bh5 Nf7 13.Qc4 Bb4 14.ab4+– (14.Nb4?! 0–0+–)) 1–0. nbh999 (1970) – Klaus Behrmann (2045), ChessWorld.net, 2003.

4.e4 Nh6

5.Nc3 c6 +=.

5.Nc3 d6 +=.

5.c4 d6 6.Nc3 c6 7.Be2 g6 8.d4 Bg7 9.Nf3 0–0 10.0–0 Bg4 11.c5 Bf3 12.Bf3 ed4 13.Qd4 dc5= 14.bc5 Nd7 15.Na4 Kh8 16.Qb4 Rab8 17.Rac1 Nf7 18.Rfd1 Nfe5 19.Be2 f5 20.f4 Ng4 21.Bg7 Qg7 22.Qa5 Ne3 23.Rd7!+/– Qd7 24.Qc3 Qg7 25.Qe3 fe4 26.Nc3 Rbe8 27.Ne4 Qb2 28.Bd3 h6 29.Re1 b5 30.cb6 ab6 31.f5! g5 32.Rb1 Qe5 33.Qb6 Rf5 34.Qc6 Qd4 35.Kh1 Qe5 36.Qh6 Kg8 37.Bc4 Rf7 38.Nf6 (38...Qf6 39.Qf6 Ref8 40.Bf7 Rf7 41.Rb8 Rf8 42.Rf8 Kh7 43.Rh8#) 1–0. Registration (2400) – LL (2185), ICC, 2003.

5.d3 Nc6 6.Nd2 d6 7.Ngf3+= Bg4 8.h3 Be6 9.Be2 Nf7 10.c4 0–0–0 11.Nb3 Nd4? 12.Nfd4 ed4 13.Nd4 Ne5 14.Qa4 (14...Kb8 15.Ne6 Qe6 16.f4+–) 1–0. waycoolguy (1920) – Klaus Behrmann (2030), ChessWorld.net, 2003.

3.a3 Nf6

4.Nc3 d5 5.d3 g6 6.g3 Bg7 7.Bg2 Be6 8.Nf3 Nbd7 9.0–0 0–0 10.Re1 c5 11.bc5 Qc5 12.d4 ed4 13.Qd4 Qc6 14.Qa4 Ne4 15.Nd4 Nc3 16.Qc6 bc6 17.Bc3 Rfc8 18.Rab1 c5 19.Nb5 Ne5 20.e3 a6 21.Nd6 Rc6 22.Be5 Be5 23.Nc4 Bc3 24.Red1 Rd8 25.Rd3 Bf6 26.Rbd1 Bf5 27.e4 Bg4 28.R1d2 Re8 29.Rd5 Be6 30.Rd6 Rd6+= 31.Nd6 Rd8 32.f4 Bd4 33.Rd4 cd4 34.e5 Rb8 35.Kf2 Bf5?? 36.c4?? dc3–+ 37.Ke2 Bc2 38.Ke3 Bb1 39.g4? Rd8 40.Bd5 Rd7 41.f5? Rc7 42.Bc4? c2 43.Kd2 c1Q! 44.Kc1 Ba2 45.Kb2 Bc4 46.Ne8 Rb7 47.Kc3 Be2 48.h3 Re7 49.Nf6 Kg7 50.Kd4 Bf3 51.h4 Rb7 52.Ne8 Kf8 53.fg6 hg6 54.Nd6 Rb3 55.g5 Ra3 56.Nc4 Ra4 57.Kc5 Be2 58.Nb6 Rh4 59.Nd7 Ke7 60.Nf6 a5 61.Nd5 Kf8 62.Kd6 a4 63.e6 fe6 64.Ke6 Bc4 65.Ke5 Bd5 66.Kd5 a3 67.Kc5 a2 (68.Kd6 a1Q 69.Kc7 Qc1 70.Kd6 Rd4 71.Ke5 Qe3 72.Kf6 Rd6#) 0–1. Berrio,Ana – Rada,Daniel Eloy, Navidad op Barranquilla, 1999.

4.c4 a5 5.Qa4 Nc6 6.Nf3 e4 7.Nd4 Ne5 8.e3 h6 9.Nc3 c6 10.f3 ef3 11.gf3 d6 12.f4 Ned7 13.ba5 Nc5 14.Qc2 Nfe4 15.Ne4 Ne4 16.Nf3 Bg4 17.Qd1 f5 18.Bg2 Ra5 19.d3 Nc5 20.Qe2 Na4=+ 21.Bc1 g5 22.Bd2 Bg7 23.Ba5 Ba1 24.fg5 hg5 25.Bd2 Nc3 26.Qf2 Nb1 27.Bc1 Bc3 28.Kf1 Bg7 29.h3 Bf3 30.Bf3 Nc3 31.Kg2 Qe6 32.e4 fe4–/+ 33.Bg4 Qe7 34.Qf5=+ Bf6 35.Rf1 0–0 36.Qg6 Qg7 37.Be6 Kh8 38.Qh5 Qh7 39.Qg5 Qg7 40.Qg7 Kg7 41.de4 Re8 42.Bf5 Ne4 43.Kf3 Ng5 44.Bg5 Bg5 45.Rd1 Re3 46.Kg4 Be7 47.a4 Ra3 48.Re1 Kf6 49.Rf1 d5 50.Bc2 Ke6 51.cd5 cd5 52.h4 Rc3 53.Bf5 Kd6 54.h5 Rc4 55.Rf4 Ke5 56.Rc4 dc4 57.h6 b6 58.h7 Bf6 59.Bb1 Bg7 60.Kf3 Kd4 61.Bg6 Be5 62.Kf2 Bf6 63.Ke2 Be5 64.Kd2 Bh8 65.Bf7 c3 66.Kc2 Be5 67.Be6 Bh8 68.Bh3 Be5 69.Bg2 Bh8 70.Bf3 Be5 71.Bc6 Bg7 72.Bh1 Be5 73.Bb7 Bh8 74.Bc8 Be5 75.Bf5 Bh8 76.Bd7 Be5 77.Bh3 Bh8 78.Bf5 Be5 79.Bd7 Ke4 80.Bc6 Ke3 81.Be8 Kd4 82.Bb5 Bh8 83.Bd3 Be5 84.Bg6 Ke3 85.Bh5 Kd4 86.Bf3 Bh8 87.Bg4 Bg7 88.Be2 Be5 89.Kb3 Ke3 90.Bg4 Kd2 91.Bf5 Bh8 92.Bc2 Be5 93.Bg6 Bd4 94.Kb4 Be5 95.a5 ba5 96.Ka5 Kd1 97.Kb4 Kd2 98.Kb3 Bh8 99.Bf5 Bd4 100.Be4 Ke3 ½–½. Fritz 5.32 – Fritz 8, 2004.

4.c4 Nc6 5.Nc3 d6 6.Nd5 Qd8 7.Nf3 Be6 8.Ne3 Be7 9.b5 Nb8 10.d4 ed4 11.Nd4 Bd7 12.Nd5 Nd5 13.cd5 Bg4 14.h3 Bd7 15.e4 0–0 16.Bd3 c5 17.bc6 Qa5 18.Qd2 Qd2 19.Kd2 bc6 20.dc6 Nc6 21.Rab1 Rfb8 22.Nf3 Be6 23.Kc1 d5 24.ed5 Bd5 25.Re1 Bf3 26.gf3 Bc5 27.Be4 Rc8 28.Kd2 Rab8 29.Ke2 Bd4 30.Bc1 Rb1 31.Bb1 Bc3 32.Rd1 Nd4 33.Ke3 Nb3 34.Ke2 Nc1 35.Rc1 Rc5 36.f4 a5 37.Rc2 h5 38.Kd3 Rb5 39.Ba2 Bb2 40.Rc8 Kh7 41.Bc4 Rf5 42.Kc2+/– Ba3 43.Bd3 g6 44.Bf5 gf5 45.Kb3 Bd6 46.Rc6 Bf4 47.Kc3 Bg5 48.Rc5 a4 49.Ra5 Bh4 50.Rf5 Kg6 51.Rf4 Bf6 52.Kb4 Be5 53.Rc4 f5 54.f4 Bf6 55.Ka4 h4 56.Kb5 Bd8 57.Kc6 Bf6 58.Kd5 Kf7 59.Rc7 Kg6 60.Ke6 Bd8 61.Rf7 Bb6 62.Rf5 Be3 63.Rf6 Kh5 64.Rf8 Bf2 65.f5 Kg5 66.Rg8 Kh5 67.f6 Be3 68.f7 Bh6 1–0. Fritz 5.32 – EXchess 3.11, 2004.

4.c4 d6 5.g3 (5.Nc3 Nc6=) 5...Nbd7 6.Bg2 c5 (6...a5 7.Nf3+=) 7.Nc3 g6 (7...Nb6 8.d3=) 8.Nf3 Bg7 9.0–0 0–0 10.e3 (10.d3 a5+=) 10...Nb6 (10...e4 11.Ne1+=) 11.d3 Rb8. Schiffler – Rabel, Aue, 1949.

4.e3 a6 5.c4 d6 6.Nf3 Bg4 7.Be2 Bf3 8.Bf3 Ra7 9.0–0 Qd7 10.d3 Nc6 11.Bc6 Qc6 12.Nd2 Be7 13.e4 0–0 14.Nf3 Qb6 15.Rc1 a5 16.c5 Qb5 17.cd6 cd6 18.Bc3 ab4 19.Bb4 Ng4 20.h3 Nf6 21.Qe2 d5?? (Better is 21...b6=) 1–0. Klaus Behrmann (2010) – Stiller, ChessWorld.net, 2003.

4.e3 b6 5.c4 c5 6.Qf3 cb4?? (Better is 6...e4 7.Bf6 gf6=) 7.Qa8+– Ne4 (7...Qd6 8.ab4 a6+–) 8.Qb8 Qf6 (8...Qd8 9.Qe5 Qe7 10.Qb8+–) 9.Qc8 Ke7 10.f3 (10.Nf3 Qc6 11.Qb8 f6 12.ab4 Nd6 13.Ra7 Qc8 14.Qb6 Nc4 15.Bc4 Qc4+–) 10...Nd6 11.Qa8 g6 12.Qd5 Bg7 13.f4 ef4 14.Bf6 Bf6 15.e4 Ne4 16.Qe4 Kd8 17.Qd3 Ba1 18.Qd5 Bf6 19.Qa8 Ke7 20.Qe4 Kf8 21.Kd1 Kg7 22.c5 Rd8 23.h4 d6 24.h5 dc5 25.Bd3 gh5 26.Qh7 Kf8 27.Rh5 Ke7 28.Qe4 Kf8 29.Bb5 Kg7 30.Qf4 Rd4 31.Rh7! Kh7 32.Qf6 Kg8 33.Nf3 (33...Rd6 34.Qd6 ba3 35.Bc4 Kg7 36.Qg3 Kh7 37.Ng5 Kg7 38.Ne6 Kh6 39.Qg5 Kh7 40.Qg7#) 1–0. slavisa10 – AbrahamLinbloom, Live Game Caissa's Web, 2004.

4.e3 Ne4 5.d3 Nf2? 6.Kf2+– Qh4 (7.g3 Qf6 8.Qf3 Be7+–; 6...d5 7.Nc3 c6 8.Qf3+–) +–. serbiansaint – Subtlety, Caissa's Web, 2004.

4.Nf3 e4 5.Nd4 c5 6.bc5 Qc5 7.Nb3 Qc6 8.e3 Qc7 9.Bf6+= gf6 10.Nc3 f5 11.Qh5 Bg7 12.Nd4 Bd4 13.Nb5 Qc2 14.Nd6 Kd8 15.ed4 Qb2 16.Rd1 Kc7 17.Nb5 Kb6 18.Qf5 d6 19.Qf6 Bg4 20.Qh8 Nc6 21.Qa8 Bd1 22.Nd6 a6 (22...Kc7 23.Ne8 Kd7 24.Nf6 Ke7 25.Ng8 Kd7+–) 1–0. Comet B50 – Comet B25, 2004.

4.Nf3 e4 5.Nd4 d5 6.h3 a5 7.b5 Qd7 8.e3 Bd6 9.Nc3 0–0 10.g4 Be5 11.Nce2 Qe7 12.Rg1 c5 13.bc6 bc6 14.c3 c5 15.Nf5 Bf5 16.gf5 Nc6 17.d4 ed3 18.Qd3 Bh2 19.Rg2 Ne5 20.Qc2 Nf3 21.Kd1 Be5 22.c4? Rfd8–+ 23.Kc1 Ne1 24.Qd2 Ng2 25.Bg2 dc4 26.Qc2 (26...Bb2 27.Qb2–+). nbh999 (2080) – Alissa (2280), ChessWorld.net, 2003.

4.e3 d5

5.Be2 g6 6.d4 e4 7.c4 c6 8.cd5 cd5 9.Qc1 Nc6 10.b5 Na5 11.Qc3 Bg7 1–0. Bonetti,Shane – reptile, ICC, 2002.

5.Nf3 Nbd7 6.b5 h6 7.Be2 Qe6 8.0–0 Bd6 9.d4 e4 10.Nfd2 h5 11.c4 c6 12.Nc3 Qf5 13.bc6 bc6 14.cd5 cd5 15.Nb5 Bb8 16.Rc1 Nf8 17.Rc7 Ng6?? 18.Nd6+– (18...Kd8 19.Rc8 Qc8 20.Nc8 Kc8 21.Ba6 Kd7 22.Bb7+–) 1–0. Klaus Behrmann (2080) – nbh999 (1930), ChessWorld.net, 2003.

5.Nf3 Nbd7 6.Nc3 Nb6 7.d4 ed4 8.Nd4 Bg4 9.Bb5 c6 10.Nc6 bc6 11.Bc6 Kd8 12.Nd5 Nbd5 13.Ba8 Bd1–/+ 14.Rd1 Kc8 15.Rd5 Nd5 16.Bd5 Rg8 17.c4 Qc7 18.0–0 Bd6 19.g3 Qd7 20.Rc1 Kd8 21.e4 Bf8 22.c5 Qc7 23.Rc3 Rh8 24.Rf3 f6 25.Rf6 gf6 26.Bf6–/+ Ke8 27.Bh8 a5 28.Bd4 Bg7 29.Be3 Bb2 30.b5 Qe5 31.b6 Ba3 32.b7+– Bc5 33.Bc5 Qb8 34.Be3 a4 35.Bf4 Qb7 36.Bb7 a3 (36...Kd7 37.Bd5 h5 38.Kf1+–) 1–0. Crafty 19.01 – EXchess 3.11, 2004.

5.Nf3 Bg4 6.Be2 Nc6 7.b5 Bf3 8.Bf3 Na5 9.0–0 0–0–0 (9...Nc4!? 10.Bc3 0–0–0=) 10.d3+= e4 11.Be2 Qd6 (11...b6 12.Nd2+=) 12.Nd2 Be7 13.Nb3 Nb3 14.cb3 ed3 15.Qd3 Ne4 (15...Kb8 16.Rac1+=) 16.Rfd1 (better is 16.Qd4!? Kb8 17.Qg7+/–) 16...Bh4= 17.g3 Bf6 18.Bf6 gf6 (18...Qf6!? 19.Rf1 h5=) 19.Bf3 f5 20.Be4 (20.Qc2!?+=) 20...fe4= 21.Qd4 f5?? (better is 21...Kb8=) 22.Qa7+– h5 23.b4 (23.Rac1 c6+–) 23...Kd7 24.Qb7 h4?? (24...Ke6 25.Rac1 Rb8+–) 25.Qc6! Kc8?? (25...Qc6 26.bc6 Combination) 26.Qd6 (better is 26.Qa8!? Kd7 27.Qd5 Ke7 28.Qd6 Rd6 29.Rd6 Kd6 30.gh4 Rh4+–) 26...Rd6 (26...cd6?? 27.Rd5 Rh5 28.a4+–) 27.Rac1 h3 28.Rc6 Kd7 29.Rdc1 1–0. Fournier,Frederic (2100) – Sanedrac (1900), Echecs21 (1/5), 2003.

4.e3 g6

5.c4 Bg7 6.Nc3 d6 7.h3 (7.h4 Bg4 8.Be2 Be2 9.Qe2 Nbd7=) 7...b6 (7...0–0 8.g4+=) 8.Qf3 e4 (8...c6 9.g4+=) 9.Qd1?? (better is 9.Ne4 Qe4 10.Qe4 Ne4 11.Bg7+/–) 9...Bb7 10.Nge2 Nbd7 11.Nd5 Bd5 (11...Qd8!?+=) 12.cd5= 0–0 13.Nc3 Ne5 14.Qc2 (14.Be2 Qd7+=) 14...c6 (14...a5 15.Bb5+=) 15.dc6+= Nc6 16.Ba6 d5 17.Qa4 (17.0–0 Rad8+=) 17...Ne5= 18.0–0 Rfd8 19.Ne2 (19.Qc2 Nh5=) 19...Nh5 (19...Ne8 20.Ra2=) 20.Be5 (20.Qb3 Nc4 21.Bg7 Ng7= (21...Nd2? 22.Qc3 Nf1 23.Bd4+–)) 20...Be5= (worse is 20...Qe5 21.Rad1+=) 21.Rac1 g5 Black plans d4 (21...d4!?=) 22.f4 (22.Qd1 Nf6 23.d4 Bd6+/–) 22...gf4 23.ef4 Bg7 (23...Bh8 24.g4 Ng7 25.Nd4+/–) 24.Kh2 (better is 24.g4!? Nf6 25.Nd4+/–) 24...d4 25.Qc6 (25.Qb5 Nf6 26.Ng3 e3+=) 25...d3 (25...e3 26.de3 Qe3 27.Rf3+/–) 26.Nc3+= Bc3 27.Rc3 Rab8 (27...Kh8 28.Qh6 Nf6 29.Qh4+=) 28.Qh6 (28.Qb5 Nf6 29.Qg5 Kf8+/–) 28...Qh4 (28...Ng7 29.f5 Ne8 30.Kg1+=) 29.Qg5 Qg5 30.fg5 1–0. Feofanov,Alexander – Bereziy,Petr, 2008.

5.Nf3 d6 6.d4 Nbd7 7.de5 de5 8.Nc3 c6 9.e4 Bg7 10.Bd3 0–0 11.0–0 Re8 12.Nd2 Nh5 13.Ne2 Nf8 14.c4 Rd8 15.Nb3 Be6 16.Qc2 Rd6 17.Rad1 Rad8 18.Bc1 b6 (18...Qh4 19.Be3 a6 20.Bb6+/–) 19.Be3 R6d7 20.c5 Bb3 21.Qb3 b5 22.Bb1 Ne6 23.Rd7 Qd7 24.a4 (24.Bc2 Qc7+=) 24...a6 (24...Nhf4 25.Bf4 ba4 26.Qa4 ef4 27.Ba2=) 25.f3 (25.Bc2!?+=) 25...Nhf4= 26.Nc3 Nd4 27.Qa2 Qe7 28.g3 Nfe6 29.Kg2 a5+= 30.Nd5 Qb7 31.ab5–/+ Qb5 32.f4 ab4 33.f5 cd5 34.fe6 fe6 35.Bd4 ed4 36.Qa7 Rf8 37.Rf8 Bf8 38.ed5 Qe2 39.Kg1 Qe1 40.Kg2 ed5 41.Qd7 Qe2 42.Kg1 Qf3 43.c6 d3 44.Qe6 Kg7 45.Qd7 Kh8 46.Qe8 b3 47.Bd3 Kg7 48.Qd7 Kf6 49.Qd8 Ke5 50.Qe8 Kd6 51.Qd7 Ke5 52.Qe8 Kd6 ½–½. Schmitt,Bernhard – Strittmatter,Norbert (2120), Verbandsliga Sued Baden, 2004.

5.g3 Bg7 6.Bg2 c6 7.Nf3 d6 8.0–0 e4 9.Nd4 Nfd7? 10.f3 ef3+= 11.Bf3 0–0 12.Nc3 Ne5 13.Ne4?? Nf3 14.Qf3 c5 15.Nf5?? Bf5–+ 16.Bg7 Kg7 17.Nc3 Nc6 18.Rae1 cb4 19.e4 Be6 20.Nd5 Bd5 21.ed5 Ne5 22.Qb3 Qc7 23.ab4 Nc4 24.Qc3 Kg8 25.d3 Qb6 26.Kg2 Ne3 27.Re3 Qe3 28.Rf3 Qe5 29.Qc7 Rac8 30.Qb7 Rc2 31.Kh3 Qh5 0–1. willi_weizenkeim – mase, HCL–B2159 playchess.de, 2003.

4.Nf3 d6

5.c4 Bg4 6.Nc3 Bf3 7.gf3 c6 8.d4 e4 9.fe4 Ne4 10.Bg2 f5 11.Ne4 fe4 12.Qc2 e3 13.Rf1 Nd7 14.d5 cd5 15.Bd4 ef2 16.Rf2 dc4 17.Bb7 Rb8 18.Qc4 Rb7? 19.Qc8 Qd8 20.Qb7 Be7 21.Rc1 Bh4 22.Rc8 Bf2 23.Bf2 Ke7 24.Bh4 (24...Ke6 25.Bd8+–) 1–0. orane – lennox, internet live, 2003.

5.e3 a5 6.b5 Nbd7 7.Be2 Nc5 8.Nc3 d5 9.d4 ed4 10.Qd4 Be6 11.0–0 Rd8 12.Rfd1 Nfe4 13.Na4 Bf5 14.Nc5 Nc5 15.Qd2 a4 16.b6 c6 17.Rab1 Ne4 18.Qa5 Nc5 19.Rbc1 Be4 20.Nd2 Bf5 21.Bd4 Ne6 22.Qa4 Qa3 23.Qa7 Nd4 24.ed4 Qa7 25.ba7 Ra8 26.g4 Bg6=+ 27.f4 f5 28.Ra1= fg4 29.Rdb1 b5 30.Bg4 Bc2 31.Re1 Kd8 32.Rec1 Ba4 33.Rc6 Ra7 34.Rc8 Ke7 35.Re1 Kf6? 36.Ree8+– h5 37.Bf3 Bb4 38.Rh8 Bd2 39.Rh5 Be3 40.Kf1 Bd4 41.Rd5 Bb2 42.Rc6 Kf7 43.Rd2 Bf6 44.Bd5 Kg6 45.Ke2 Kh5 46.Bf3 Kg6 47.Be4 Kf7 48.Bd5 Kf8 49.Kf3 Rd7 50.Ra6 Bc3 51.Rd3 Bf6 52.Ra8 Bd8 53.Rb8 Ke7 54.Re3 Kf6 55.Re6 Kf5 56.Re5 Kf6 57.Bc6 Rd6 58.Bb5 Bd1 59.Be2 Ba4 60.h4 Bc6 61.Ke3 g6 62.Bc4 Ba4 63.Rb7 Bd7 64.Rd5 Rd5 65.Bd5 Be6 66.Rb5 Bg4 67.Rb8 Be7 68.Rb6 Kg7 69.Rb7 Kf6 70.Kd4 Bc8 71.Rc7 Bf5 72.Ra7 Bc2 73.Ra2 Bf5 74.Rb2 Bg4 75.Be4 Bh5 76.Rb7 Bd6 77.Rb6 Ke6 78.Bd5 Kd7 79.Rb7 Kd8 80.Rf7 Ba3 81.Ke5 Bb2 82.Kd6 Ba3 83.Ke6 Bb2 84.Rb7 Bc1 85.Rd7 Ke8 86.Ra7 Kf8 87.f5 gf5 88.Kf5 Be3 89.Rh7 Bd1 90.h5 Bd2 91.Rf7 Ke8 92.h6 Bc3 93.Rc7 Bd4 94.Rc4 Bb2 95.Ke6 Kd8 1–0. Fritz 6 – Fritz 8, 2004.

5.e3 Bg4 6.Be2 Nbd7 7.0–0 0–0–0 8.d4 ed4 9.Bd4+= Nb6 10.Bb6 ab6 11.Nd4 Bd7 12.a4 d5 13.a5 ba5 14.Ra5 Kb8 15.Nc3 Qb4 16.Qa1 c5 17.Ncb5 Bb5 18.Rb5 cd4 19.Rb4 Bb4 20.Qd4 Be7 21.Ra1 Bd6 22.Ra7 Bc7 23.Qc5 Nd7 24.Qa3 Nb6 25.Bf3 Be5 26.c4! Bd6 27.Qa5 Bc5 28.cd5 Rhe8 29.Rb7! Kb7 30.d6 Kb8 (30...Kc8 31.Qc5 Kd7 32.Bg4 Re6 33.Qc7 Ke8 34.Be6 Rd6 35.Bf7 Kf8 36.Qd6 Kf7 37.Qc7 Kg8 38.Qb6+–) 1–0. Fritz 8 – EXchess 3.11, 2004.

5.e3 Bg4 6.Be2 Nbd7 7.0–0 0–0–0 8.d4 ed4 9.Bd4+= Nb6 10.Bb6 ab6 11.Nd4 Bd7 12.a4 d5 13.a5 ba5 14.Ra5 Kb8 15.Nc3 Qb4 16.Qa1 c5 17.Ncb5 Bb5 18.Rb5 cd4 19.Rb4 Bb4 20.Qd4 Be7 21.Ra1 Bd6 22.Bd3 Kc7 23.Rb1 Kb8 24.Bb5 Kc8 25.c4 Bc7 26.Ra1 b6 27.Bc6 Bb8 28.Qb6 Rd6 29.Ra8 Rc6 30.Qc6 Kd8 31.Qd6 Ke8 32.Rb8 1–0. Fritz 6 – EXchess 3.11, 2004.

5.e3 Bg4 6.h3 Bd7 7.Be2 e4 8.Nd4 Nc6 9.Nc6 Bc6 10.b5 Bd7 11.c4 0–0–0 12.Qa4 Kb8 13.Bd4 a6 14.Qa5 Qe6? 15.Nc3 Qf5+/– 16.Bf6 Qf6?? 17.ba6+– b6 18.Rb1 Ka7 19.Qh5 Qe6 20.Qd5 Ka6 21.c5 Ka7 22.cb6 cb6 23.Nb5 Kb8 24.Qd4 d5 25.Nd6!! Qd6 26.Rb6 Kc7 27.Rd6 Kd6 28.d3 ed3 29.Bd3 Bc8 30.0–0 Ke7 31.Rc1 Be6 32.Bb5 Rd6 33.Rc7 Rd7 34.Bd7 Kd8 35.Qa7 Ke7 1–0. Comet B25 – EXchess 3.11, 2004.

5.e3 h6 6.c4 (6.Be2 Be6=) 6...Bg4 (6...e4 7.Nd4=) 7.Be2 Nbd7 8.0–0 h5 (8...e4 9.Nd4 Be2 10.Qe2=) 9.d4 (9.h3 Bf5+=) 9...e4 10.Nfd2 c6 (10...d5 11.Nc3+=) 11.Nc3 a6 (11...d5 12.cd5 cd5 13.Rc1+=) 12.a4 White prepares the advance b5 (12.d5 Ne5+=) 12...Bf5 (12...d5 13.c5=) 13.b5 (13.d5 cd5 14.Nd5 Nd5 15.cd5 Qg5+=) 13...h4 (13...Qe6 14.a5+=) 14.bc6 (14.h3 Qe6+/–) 14...bc6+= 15.Ba3 (15.h3 c5+/–) 15...g5 (15...Qe6 16.d5 Qe5 17.Bb2+=) 16.d5 (16.a5 Bg7+=) 16...c5 17.Qc2 Increases the pressure on e4 (17.Bb2 Bg7+=) 17...g4 (17...Bg7 18.Bb2 Rb8 19.Rab1=) 18.Rfb1 (better is 18.Bb2 Rg8 19.Ra3=) 18...Qe5?? (better is 18...Bg7=) 19.Bb2+– Qe7 (19...Rb8 20.Nd1 Rb2 21.Rb2+–) 20.Nce4! Ne4 21.Bh8 f6? 22.Ne4 Be4 23.Bd3 (23.Bd3 Bd3 24.Qd3+–) 1–0. Wall,Bill – Lapu, internet, 1999.

3.a3 g6

4.d4 ed4 5.Qd4+/– f6 6.Nc3 Nc6 7.Qc4 a6 8.Nd5 Qd6 (better is 8...Qd8!?+/–) 9.Rd1+– a5? (better is 9...Kd8+–) 10.Nf6! Nf6 (10...Qf6 11.Bf6 Nf6 12.b5+–) 11.Rd6 Bd6 12.Bf6 Rf8 13.Qe4 Kf7 14.Bb2 Re8 (14...ab4 15.Nf3 Be7 16.ab4 Bb4 17.Kd1+–) 15.Qc4 Ke7 (15...Kf8 16.b5 Ne5+–) 16.Qh4 Kf8 (16...g5 17.Qg5 Ke6 18.Qf6 Kd5 19.Qf7 Re6 20.e4 Ke4 21.Qf3) 17.Qf6 Kg8 18.Qg7# 1–0. Ritschel,Stephan (1935) – Tsobas,Christos (1710), RSS7E easy–2, 2003.

4.d4 e4 5.c4 =.

4.d4 Bg7 5.d5 d6 6.e3 f5 7.c4 Nd7 8.Nd2 Ngf6 9.Be2 0–0 10.Ngf3 h6 11.Qb3 Kh7 12.g3 a5 13.0–0 c6 14.ba5 Ra5 15.Qb4 Ra6 16.dc6 bc6 17.c5 dc5 18.Qh4 Rb6 19.Nc4 Ba6? 20.Nb6+– Be2 21.Nd7 Bf3 22.Nf8 Bf8 23.a4 g5 24.Qh3 Qe6 25.a5 g4 26.Qh4 Be7 27.a6 c4? 28.Bc1 Ng8 29.Qh5+/– Nf6 30.Qh6?? Kh6–+ 31.a7 Qf7? 32.e4 Kh7 33.Bg5?? Qh5 34.Bh4 Ng8 35.a8Q Bh4 36.gh4 Qh4 37.Ra7 Kh8 38.Qe8 Be4? 39.Qe5 Qf6 40.Qc7 Qh6 41.Rd1 c3 42.Qe5 Qf6 43.Rdd7 (43...Ne7 44.Qf6 Kh7 45.Re7 Kg8 46.Qg7#) 1–0. De Cat,Ben – Andersen,Ole Bo (2225), NATO–ch Germany, 1989.

4.e3 d5 5.f4 Bg7 6.Nf3 (6.fe5 Nc6 7.Bb5 Be5 8.Be5 Qe5 9.Nc3 Nf6 10.Nf3 Qd6 11.0–0) 6...Nd7 (6...f6 7.fe5 (7.Nc3 Be6 8.fe5 fe5 9.Be2 Nd7 10.0–0 0–0–0 11.e4) 7...fe5 8.Be2= (8.Bb5 Bd7 9.Qe2 Bb5 10.Qb5 c6 11.Qa5) 8...Nf6 9.0–0 e4 10.Nd4 0–0 11.Nc3) 7.Be2 (7.Nc3 c6 8.Bd3 Nh6 9.0–0 0–0 10.Ng5 f6 11.Nh3) 7...Nh6 (7...f6 8.Nc3 Nb6 9.0–0= Bf5 10.Nh4 Nh6 11.a4) 8.c4 (8.0–0 Nf5+= (8...0–0 9.Nc3 c6 10.Ne5 Ne5 11.fe5) 9.Nc3 c6 10.g4 Nd6 11.Qe1; 8.Nc3 c6 9.fe5 Ne5 10.Ne5 Be5 11.0–0) 8...d4 (8...dc4 9.Bc4 (9.0–0 0–0 10.Nc3 ef4 11.Nd5) 9...0–0 10.0–0= Nb6 11.Bb3) 9.fe5+= (9.ed4 ef4 10.0–0 0–0 11.Nc3) 9...de3 10.de3 (10.d4 f6+= (10...0–0 11.0–0) 11.Nc3) 10...0–0 (10...Nf5 11.Nc3= –0.15/9 (11.Qd3=)) 11.Qd5 (11.Nc3!?+=) 11...Ng4= 12.Qe4 (12.Bd4 Rd8 (worse is 12...Be5 13.Ne5 Nde5 14.0–0+=) 13.Qe4 Nde5 14.Ne5 Ne5+=) 12...Nge5 (12...f5 13.Qf4=) 13.Nc3 (13.Ne5 Ne5 14.0–0 f5+=) 13...c6 (13...Re8=) 14.h4 (14.0–0 f5 15.Qc2 Ng4+=) 14...Re8 (14...f5 15.Qf4–/+) 15.Nd1? (15.h5!?+=) 15...Nf3 (15...a5 16.Nc3–+) 16.Qf3–/+ Bb2 (16...Ne5 17.Qf1–/+) 17.Nb2 Qe3 (17...a5 18.b5+=) 18.Qe3+= Re3 19.Kf2 Re7 20.Rad1 Nf6 (20...a5+=) 21.h5 (21.Rd8!? Re8 22.Re8 Ne8 23.Rd1+=) 21...Bf5 (21...Ne4 22.Kf3–/+) 22.hg6 0–1. Torres Herrero,F – Garcia Herguedas,F, Valladolid, 1987.

4.f4 Bg7

5.Nf3 d6 6.fe5 d5 7.e3 Bg4 8.d4 b6? 9.Nbd2 Nh6 10.Bd3 f6 11.0–0 fe5+= 12.de5 0–0 13.c4+/– Bf5 14.e4 dc4? 15.ef5 cd3 16.f6 Bf6 17.Qb3 Rf7 18.ef6 Qe3 19.Kh1 Ng4 20.Rae1 Qh6 21.Re8 Qf8 22.Rf8 Kf8 23.Ng5 Rd7 24.Ne6 Ke8 25.Ng7 Kf8 26.Qe6 Nc6 27.Qd7 (27...Nd4 28.Qe7 Kg8 29.f7 Kh8 30.f8Q Rf8 31.Rf8#) 1–0. Levin,Anatoly – Saul,Andres, Internet Section, 2004.

5.Nf3 d6 6.fe5 de5 7.e4 Nh6 8.Bc4 Nc6 9.Bb5 0–0 10.Nc3 Nd4 11.Bd3 Nf3 12.Qf3 Bg4 13.Qg3 Rad8 14.0–0 Qg5?? 15.Rf2?? b6?? 16.Nd1?? Rde8?? 17.Ne3?? Re6? 18.h3 Rf6?! 19.Rf6 Bf6 20.hg4 Rd8 21.Rf1 Bg7 22.Rf2 c6 23.Kf1 c5 24.bc5 bc5 25.Ke1 Rb8 26.Bc3 Rb1 27.Ke2 Rc1 28.Qf3 Qh4 29.g3 Qh1 30.Qh1 Rh1 31.g5 Ng4 32.Ng4 Bf8 33.Be5 Bg7 34.Nf6 Kh8 35.Bc3 h6 36.gh6 Rh6 37.Nd7 Bd4 38.Bd4 Kg8 39.Nc5 Rh3 40.Kf3 g5 41.Nd7 Kh7 42.Kg4 Rh6 43.Rf7 Kg8 44.Rg7 Kh8 45.Rg5 Kh7 46.e5 Rg6 47.Bg6 Kg7 48.Be8 Kh6 49.Rg6 Kh7 50.Nf8 Kh8 51.e6 1–0. 1805DYDIDIDY – icke, mySchach.de, 2005.

5.Nf3 d6 6.fe5 Be5!? 7.Ne5 de5 +=.

3.b5 a6

4.a4 ab5 5.ab5 Ra1 6.Ba1 d5 7.Nf3 Nd7 8.e3 Ngf6 9.Be2 Qe6 10.0–0 Bd6 11.Nc3 (11.Ng5 Qf5 12.f4 Qg6+=) 11...0–0+= 12.d3 (12.Ng5 Qe7+=) 12...c5 (12...Re8 13.Qd2+=) 13.Qd2 h6 14.Rb1 b6 15.Bb2 Bb7 (15...Re8 16.Ra1+=) 16.Ra1 Ra8 17.Ra8 Ba8 18.Nd1 Bb7 19.c4 dc4 20.dc4 e4 21.Ne1 Ne5 22.Bc3 Bc7 23.Nb2 Neg4 (23...Qf5 24.Nd1=) 24.h3= Ne5 25.Qd1 Ne8 26.Qa1 Bb8 27.Qd1 Nd6 The pressure on c4 grows 28.Nc2 f5 (better is 28...Bc7 29.Qf1 Bd8+=) 29.Na4 (better is 29.Na3!?=) 29...Nec4–/+ (29...Ndc4?? 30.Qd8 Kf7 31.Qb8+–) 30.Bc4 (30.Qa1 Qf7–/+) 30...Qc4 31.Na3 Qa2 32.Qa1 Qa1–+ 33.Ba1 Bc7 34.Be5 Nb5 35.Nc4 Bd8 36.Kf1 Kf7 37.Ncb6 Bc6 38.Nc4 Na3 39.Na3 Ba4 40.Bb2 g6 41.Be5 Ba5 42.Nc4?? Bb5 (42...Bb5 43.Bd6 Bc4 44.Kg1 Bb4–+) 0–1. Achermann,Josef (1685) – Yakimov,Alexander (2180), Telechess, 2004.

4.a4 d5 5.e3 ab5 6.ab5 Ra1 7.Ba1 Nf6 8.Nf3 Nbd7 9.d4 ed4 (9...e4 10.Ne5+=) 10.Nd4 Qe4 11.Nc3 Bb4 12.Qd3 Nc5 13.Qd2 Qe7 14.f3 Nfe4 15.fe4 Ne4 16.Qd3 Qf6 (16...Qc5!?–/+) 17.Be2+= Nf2?? (better is 17...Qf2 18.Kd1 Qg2+=) 18.Qd2?? (better is 18.0–0 Nd3 19.Rf6 Bc3 20.Bc3 gf6 21.Bd3+–) 18...Nh1–+ 19.Bf3 c5 20.Nde2 Be6 21.Kf1 Qh4 22.Qe1 Qh2 23.Bb2 Ke7 24.Nf4 Rd8 25.Qd1 d4 26.Nce2 Nf2! (26...Nf2 27.Qc1 de3–+) 0–1. Baer,Cy (1895) – Hoetker,Michael (2140), RSX7D–Oldenburg–1, 2007.

4.e4 ab5 5.Bb5? (5.Qh5 Nc6 6.Nf3 Nf6–/+) 5...c6?? 6.Be2=+ Nf6 7.a4 g6 8.Ba3 d6 9.Nf3 Bg7 10.Nc3= 0–0 11.d4 ed4 12.Nd4? Nfd7?? 13.0–0? Nb6?? 14.Re1?? Re8?? 15.Bc4?? Nc4–+ 16.Bd6 (16.Bc1–+) 0–1. GorillaTest – bard18, Live Game Caissa's Web, 2004.

4.ba6 Na6

5.e3 Nf6 6.Nf3 d6 7.Nc3 d5 8.Be2 Qe6 9.0–0 Be7 10.d4 e4 11.Ne5 0–0 12.Nb5 c6 13.Nc3 Bd6 14.Na4 c5 15.Nb6 Ra7 16.Nc8 Rc8 17.Ng4 c4 18.Nf6 Qf6 19.Bg4 Rca8 20.Re1 Nc7 21.Qb1 b5 22.Bc3 Qe7 23.Rd1 b4 24.Bb2 Qh4 25.h3 f5 26.Bf5 Rf8 27.Bh7 Kh7 28.Rf1 c3 29.Bc1 Na6 30.Qb3 Raf7 31.f4 ef3 32.Bd2 Qg3 33.Rf3 Rf3 34.Qd5 Qh2 0–1. EXchess 3.11 – Fritz 6, 2004.

5.e3 Nf6 6.Nf3 d6 7.Be2 Qe6 8.0–0 Be7 9.d4 e4 10.Nfd2 0–0 11.c4 Re8 12.a3 Qf5 13.Nc3 Qg6 14.Kh1 c6 15.Qb3 Nc7 16.Rab1 d5 17.cd5 Ncd5 18.Nd5 Nd5 19.Bc4 Rd8 20.Rfe1 b5–/+ 21.Be2 Bf5 22.Rbc1 Ra6 23.Rc2?? Be6–+ 24.Nc4 Bd6 25.a4 bc4 26.Bc4 Rb8 27.Qb8 Bb8 28.Ba6 Nb4 29.Rcc1 Na6 30.Rc6 Qh5 31.g3 Qf3 32.Kg1 Bh3 33.Rc8 Bc8 34.a5 Bh3 35.Bc3 Qg2 0–1. EXchess 3.11 – Fritz 8, 2004.

5.e3 Nf6 6.Nf3 e4 7.Nd4 c5 8.Nf5 Qe6 9.Ng3 Be7 10.Nc3 0–0 11.Be2 d5 12.0–0 Qb6 13.Rb1 Nb4 14.a3 Nc6 15.Nd5 Nd5 16.Bg7 Kg7 17.Rb6+= Nb6 18.Qb1 Nd5 19.Ne4 Nf6 20.Qb2 Rd8 21.d3 Ra7 22.Bf3 Ra6 23.Ng5 c4+= 24.Bc6 Rc6 25.d4 Nd5 26.Nf3 Rb6 27.Qa2 c3 28.e4 Nf4 29.Qc4 Ba3 30.Ng5 Rf6 31.Ra1 Bb2 32.Re1 Ne6 33.Ne6 Re6 34.d5 Ree8 35.Qd4 f6 36.Rb1 b5 37.Qd3 Kh8 38.Re1 Bf5 39.Qf3 Rd5=+ 40.g4 Bg4 41.Qf6 Kg8 42.f3 Bh5 43.Qh4 Rc5 44.f4 Bf7 45.e5 Bg6 46.f5+= Bf5 47.Qf2 Bc2 48.Qc5+– Ba4 49.Qd4 Kh8?? 50.e6 Kg8 51.Qd7 Re6 52.Re6 Ba3 53.Re8 Bf8 54.Qe7 b4 55.Rf8 (55.Qf8?!=) 1–0. EXchess 3.11 – Doctor? 3.0, 2004.

5.e3 Nf6 6.Nf3 e4 7.Nd4 c5 8.Nf5 Qe6 9.Ng3 Be7 10.Nc3 0–0 11.Be2 d5 12.0–0 Bd7 13.d4 ed3 14.cd3 c4 15.dc4= dc4 16.Qd4 Rac8 17.e4 Bc5 18.Qd2 Rfe8 19.Qg5 h6 20.Qh4 Bd4 21.Bf3 Nc5 22.Nf5 Be5 23.Rad1 Nfe4 24.Ne4 Qf5 25.Be5=+ Ne4 26.Be4 Qe5 27.Bb7 Rc7 28.Bf3 c3 29.Rd5 Qe6 30.Qf4 Rec8 31.Re5 Qc4 32.Qc4 Rc4 33.Rc1 R4c7 34.Be4 f6 35.Rd5 Be6 36.Rd3 Rc5 37.a4=+ f5 38.Rd6 fe4 39.Re6 Rc4 40.a5 Rd8 41.Kf1 Rd2 42.a6 Ra2 43.Rd6 Rc8 44.h4 Rf8 45.Rc3 Rff2 46.Ke1 Rg2 47.Kf1 Rgf2 48.Kg1 Rfb2 49.Rc1 e3 50.Rg6 Kh7 51.h5 Rb5 52.Re1 Rh5 53.Re6 Rg5 54.Kh1 Rd5 55.Kg1 h5 56.Kf1 Rf2 57.Kg1 Rg5 58.Kh1 Rf4 59.Re2 Rf1 60.Kh2 0–1. EXchess 3.11 – Crafty 19.01, 2004.

5.e4 Qb4 6.Be5 Qe4 7.Qe2 Qe2 8.Be2 Nb4 +=.

3.b5 d5

4.Ba3 Qf6 5.Bf8 Kf8 6.e3 c5 (6...Bf5 7.Nc3 Ne7 8.Qf3 Bc2 9.d3=) 7.Nc3 (7.c4 Ne7=) 7...Ne7 (7...Be6 8.Qf3=) 8.Nge2 (8.Qf3 Qf3 9.Nf3 e4=) 8...g6 (8...Kg8 9.f4+=) 9.d4 (9.Ng3 Kg7=) 9...ed4 10.ed4 c4 11.Qd2 Kg7 12.Nf4 Be6 (12...Rd8 13.Be2=) 13.Be2 g5?? (better is 13...a6=) 14.Nh5+– Kg6 15.Nf6 Kf6 16.h4 gh4 17.Rh4 1–0. Roczniak,Jan – Tyll, Poland (year?).

4.a4 c5 5.d3 d4 6.Nf3 a5 (6...Nf6 7.e3=+) 7.Nbd2= f6 8.Nc4 Nd7 9.Qd2 Qd8 10.0–0–0 (10.e3!?=) 10...g6 11.Kb1 Nb6 12.Nb6 Qb6 13.e3 Be6 14.g3 Bh6 15.Qe1 Ne7 16.ed4 cd4 (16...ed4 17.Bg2=+) 17.Ne5= fe5 18.Qe5 0–0–0 19.Re1+– Bd7?? 20.Bd4 +–. Grund,Karl – Slovak, (year?).

4.a4 Qf6 5.Nc3 (better is 5.a5+=) 5...Bb4?? (better is 5...d4 6.Ne4 Qf4+=) 6.Nd5+– Qd6 7.Nb4 Qb4 8.Be5 Qc5?? (8...Nf6+–) 9.Bg7 1–0. Wall,Bill – Indigo, internet, 2000.

4.d4 Qb4 5.c3?? (better is 5.Bc3 Qb5 6.e3=) 5...Qb2–+ 6.Nd2 Qc3 7.Rc1 Qd4 8.Rc7 Nd7 9.e3 Qb6 10.Qc2 (10.Rc2 Nc5–+) 10...Ne7 (better is 10...Nc5 11.Rc5 Bc5 12.Qb2–+) 11.Ngf3 g6 (11...a6 12.a4–+) 12.Be2 Bg7 13.0–0 e4 14.Ng5 (14.Nd4 Be5 15.Rc3 Bd4 16.ed4 Qd4–+) 14...Be5 15.Rc3 Bc3 16.Qc3 f6 17.Nh3 0–0 18.a4 Qc5 19.Qb3 a5 20.Ne4 (20.ba6 ba6 21.Ne4 Qa5–+) 20...Qb4 21.Qa2 (21.Qb4 ab4 22.Ng3 Ra4–+) 21...Qe4 22.Bf3 Qc4 23.Qa3 Re8 24.Rd1 Ne5 25.Nf4 Nf3 26.gf3 g5 (26...Qc2!? 27.Qa1–+) 27.Nh5 Rf8 (better is 27...Kf7 28.Qb2 Ng8–+) 28.Qe7+/– Rf7 29.Qe8 Rf8 30.Nf6 Kg7 31.Qe7?? (better is 31.Nh5 Kh6 32.Qf8 Kh5 33.Qf7 Kh6 34.h4 gh4 35.Rd5 Qd5 36.Qd5+–) 31...Rf7–/+ 32.Ne8 Kg6 33.Qd6 Kh5 34.Nf6 Rf6! 35.Qf6 d4 36.Rd4 Qe6 37.Qg7 h6 38.f4 gf4 39.Rf4 Qg6 40.Qg6 Kg6 41.Rf8 b6 42.f4?? (better is 42.Rd8=) 42...Bb7–+ 43.Ra8 Ba8 44.Kf2 Be4 45.Kg3 Kh5 46.Kh3 Bc2 47.Kg3 Ba4 48.f5 (48.Kf3–+) 48...Bb5 49.f6 Kg6 50.f7 Kf7 0–1. madik – revhedge, gameknot.com, 2009.

4.e3 (--> 3.e3 d5 4.b5).

4.Nf3= e4 5.Ne5 =.

4.Nf3 Nd7

5.d4 Qb4 6.Bc3 Qb5 =.

5.e3 f5 6.Be2 Ngf6 7.0–0 c5 8.c4 e4 9.Ne1 g6 10.Nc3 Bg7 11.Nc2 Nb6 12.a4?? a5?? 13.Nd5+= Nbd5 14.cd5 Nd5 15.Bg7 Qg7 16.d3 ed3 17.Qd3+= Nb4 18.Nb4+/– cb4 19.Qc4 Qf7 20.Bf3?? Qc4–+ 21.Rfc1 Qe6 22.Rd1 Qf6 23.h3 0–0 24.Bd5 Be6 25.Bb7 Rac8 26.Bc8 Rc8 27.Rd4 Rd8 28.Rad1 Rd4 29.Rd4 b3 30.Rd1 b2 31.Rb1 Ba2 32.Rb2 Qb2 (33.h4 Bc4–+) 0–1. stoker – Space, Live Game Caissa's Web, 2005.

5.e3 Ngf6 6.Nc3 =+.

3.b5 f5

4.e3 d6 5.c4 Nd7 6.Nc3 Ndf6 (6...Ngf6 7.Nf3=) 7.Nf3 e4 (7...a6 8.ba6 Ra6 9.c5+=) 8.Nd4+= Qf7 9.d3 ed3 (9...Be7 10.Be2+=) 10.Bd3 Nh6 11.Qc2 Will f5 fall? 11...Nfg4 12.0–0–0 (12.Nd5!? Ne5 13.b6 cb6 14.Rd1+/–) 12...Ne5= 13.Nd5 c6 14.bc6 (14.Nf4 Bd7=) 14...bc6 15.Nf4 Be7 (15...Rb8 16.Be2=) 16.Be2 0–0 17.Nf3 Neg4 18.Bd3 g5 (18...Bf6 19.c5 Bb2 20.Qb2=) 19.h3 (19.Nh3 Qg6=) 19...Ne5= 20.Be5? (20.c5 gf4 (worse is 20...Nd3 21.Nd3 Qe6 22.cd6 Qd6 23.Nf4+/–) 21.Be5 de5+=) 20...de5 21.c5 ef4 22.Bc4 Be6 23.Ne5 Qf6 24.Nd7 Qf7 25.Ne5 Qf6 ½–½. Schueppen,Heinz – Ziese,Gerhard, BdF, 1985.

4.e4 Qb4 5.Be5 Qe4 6.Qe2 =.

4.e4 d6? 5.ef5 Bf5 6.Qf3! Ziese.

4.e4 Nh6 5.Nf3 d6 6.d3 Nd7 7.Nc3 Nf6 8.Be2 g6 9.0–0 Bg7 10.Qd2 0–0= 11.Ng5 Nf7 12.Nf7 Rf7 13.a4 f4 14.a5 c5 15.bc6 bc6= 16.Ba3 Ne8 17.Rab1 Qd8 18.Na4 Nc7 19.Bb2 Ne6 20.Bc3 f3 21.Bf3+= Rf3 22.gf3+/– Qh4 (23.f4 Qg4 24.Kh1 Qf3 25.Kg1 Nf4 26.Qf4 Qf4 27.f3 Be6 28.Bb4 Bh3 29.Rf2 Rb8 30.Nb6 ab6 31.Bd2 Qf6 32.Rb6 Ra8 33.Rb1 Qe6 34.c4 Qf6 35.Rb3 g5 36.Rb6 c5 37.Bc3 Rf8 38.a6 Bd7 39.a7 Qf4 40.Rd6 Bh3 41.Bd2 Qf7 42.Ra6 Ra8 43.Bg5 Ra7 44.Ra7 Qa7 45.Rd2 Qf7 46.Kf2 Qg6 47.Rd1 Qg5 48.Rg1 Qf4 49.Rd1 Qh2 50.Ke1 Bf6 51.Ra1 Qg1 52.Kd2 Bg5 53.f4 Bf4 54.Kc3 Qa1 55.Kb3 Bd7 56.d4 Ba4#) 0–1. Trigance,Eric – Ziese,Gerhard, corr SOK–92–81, 1992.

4.e3 Nf6

5.Ba3 d6 6.d3 g6 7.c4 Bg7 8.Qa4 b6 9.Nf3 Bb7 10.Bb2 Nbd7 11.Qb4 0–0 12.Qc3 Nc5 13.Be2 Na4 14.Qb3 Nb2 15.Qb2 e4 16.de4 Ne4 17.Nd4 Nf2 18.Kf2 Rae8 19.Qc3 f4 20.Re1? fe3 21.Kg1 Qh4 (22.Nf3 Qf2 23.Kh1 Rf3 24.Bf3 Bf3–+) 0–1. Rosner,Dirk – Ziese,Gerhard, corr SOK–89–37, 1989.

5.c4 d6 6.Nf3 =.

5.c4 g6 6.Nf3 d6 7.d4 ed4 8.Bd4 Bg7 9.Be2 0–0 10.0–0 Ne4 11.Bd3 a6 12.Bg7 Qg7 13.Nbd2 Nc5 14.Bc2 ab5= 15.cb5 Be6 16.a4 Nbd7 17.Nd4 Bd5 18.a5 f4 19.Qe2 fe3 20.fe3 Rf1 21.Nf1 Qe5 22.Bb1 Ne6 23.Qd2 Ndc5 24.Ba2 Ne4 25.Qb2 Ba2 26.Ra2 N6c5 27.Ra3 Qf6 28.Qa2 Qf7 29.Qe2 Qd7 30.a6 ba6=+ 31.ba6 d5 32.a7 c6 33.Qa2 Qc7 34.h3 Qb6 35.Ra5 Nc3 36.Qa1 Nb5 37.Nb5= Nb3 38.Qf6 Na5 39.Qe6 Kg7 40.Qe7 Kh8 41.Nc7 Qa7 42.Qf6 Kg8 43.Qe6 Kf8 44.Na8 Qa8 45.Qf6 Kg8 46.Qe6 Kg7 47.Qe7 Kg8 48.Qe6 ½–½. Zylla,Johannes – Trigance,Eric, corr ICCF TT–4–90–SF1, 1992.

5.d4 e4 6.c4 d6 7.Ne2 Be6 8.Nf4 Bf7 9.h4 g6 10.d5 Nbd7 11.Nd2 Rg8 12.Nb3 Bg7 13.Nd4 Nc5 14.h5 Nfd7 15.hg6= hg6 16.g4 fg4=+ 17.Qg4 Ne5 18.Qg2 g5–+ 19.Nf5 Qf6 20.Ng7 Qg7 21.Nh5?? Bh5 22.Rh5 Ned3 23.Bd3 Qb2 24.Rd1 Nd3 25.Kf1 0–0–0 (26.f3 Rdf8 27.Qb2 Rf3 28.Kg1 Nb2–+) 0–1. Wartig,Wolfgang – Ziese,Gerhard, corr SOK–89–48, 1989.

5.Nf3 e4 6.Nd4 d5 7.c4 Qb4 8.Ba3 Qa5 9.Bf8 Kf8 10.Nc3 c6 11.Be2 Qb4 12.cd5 cd5 13.Rb1 Qd6 14.0–0. COMP.

5.Nf3 e4 6.Nd4 d5 7.c4 Qb4 8.Qc2 Bd7 9.Nc3 c6 10.Be2 dc4= 11.a3 Qc5 12.Na4 Qd5 13.Bc4+/– Qd6 14.Qb3 (14.d3 cb5 15.Nb5 Qc6 16.Bf6 gf6+/–). Psion – Psion, 4 Min/Zug, 1991.

3.b5 Nf6

4.e3 a6 5.c4 ab5 6.cb5 d6 7.Nf3 Bd7 8.Be2 h6 9.0–0 c6 10.Nc3 cb5 11.Nb5 Bc6 12.d4 ed4 (better is 12...e4!? 13.Nd2 Qd7+=) 13.Nfd4+/– Qd7 14.a4 Be7 15.Ba3 (15.Nc6 Nc6 16.Bf6 Bf6+/–) 15...0–0 16.Nc6 bc6 17.Nd6 Ra4?? (better is 17...Rd8 18.Nc4 Qe6+/–) 18.Qa4+– Nd5 (18...Bd6 19.Rfd1 Ne8 20.Bd6 Nd6+–) 19.Ne4 Ba3 20.Qa3 Qe6 21.Nc5 Qd6 22.Bf3 Nd7 23.Nd7 Qd7 24.Bd5 cd5 25.Rfd1 Rd8 26.Qa7 Qd6 27.Qd4 f6 28.Ra5 Qc7 29.Rd5 Rc8 30.Rd8 (30.Rd8 Rd8 31.Qd8 Qd8 32.Rd8 Kh7 33.Rd6+–) 1–0. orangutanb4 (2045) – amatyor2, kurnik, 2011.

4.Nf3 e4 5.Nd4 c5 6.bc6 dc6 =.

4.Ba3 d6=+

5.d4 ed4 6.Qd4 Ne4 7.c4 Bd7 8.f3 Nf6 9.e4 Be6 10.e5 de5 11.Qe5=+ Qd8 12.Bf8 Rf8 13.Nh3 Qe7 14.Ng5 a6 15.Ne6= Nbd7?? 16.Nc7+– Kd8 17.Qe7 Ke7 18.Na8 Ra8 19.Nc3 ab5 20.cb5 Rc8 21.Kd2 Rc5 22.Bd3 Ne5 23.Rhe1 Kf8 24.a4 Nd3 25.Kd3 Nd5 26.Nd5 Rd5 27.Kc4 Rd8 28.Rad1 Rc8 29.Kb4 g5 30.Rd7 b6 31.Rb7 g4 32.fg4 Kg8 33.Re2 Rc1 34.Rb6 Rb1 35.Kc5 Rh1 36.g3 Rc1 37.Kd6 Rd1 38.Ke5 Ra1 39.Ra6 Kg7 40.g5 Rb1 41.Re3 Rb4 42.h4 Rb1 43.h5 Rh1 44.g4 h6 45.Rh6 f6 46.Rf6 Rh4 47.Kf5 Kh7 48.Re7 Kg8 49.Kg6 Rh3 50.Re8 1–0. nay (2190) – ajeffries (1645), net–chess.com, 2006.

5.d4 Bd7 6.e3 –/+.

5.e3 Bd7 6.c4 c6 7.Bb2 cb5 8.cb5= a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Qe6 12.Nf3 Be7=+ 13.Ng5 Qd5 14.Nf3 Bb5?? 15.Nc3+– Qc5 16.Bb5 Nbd7 17.d4 ed4 18.ed4 Qc8 19.0–0 0–0 20.Nd5 Nd5= 21.Bd7 Qd7–/+ 22.Qb3 Nf4 23.Qe3 Qg4 24.h3?? Nh3 25.Kh1–+ Nf4 26.Qe7?? Qg2# 0–1. OutOfBounce – ERIC1, Live Game Caissa's Web, 2005.

5.Nf3 a6 =+.

3.c4 Qb4

4.Qc2 Nc6 5.e3 d6 6.Nc3 Bf5?? 7.Qf5+= Qb2 8.Rb1 Qa3 9.Rb7 Qc1 10.Nd1 Nge7 11.Qf3 Rc8 12.Rb2 g6 13.Bd3+= Bg7 14.Ne2+/– Qa1 15.Nec3 Rb8 16.Rb8+/– Nb8 17.Qb7 0–0 18.0–0 Nbc6? 19.Nb2 Qf1 20.Bf1 Rb8 21.Qc7 Rb2 22.Qd6 Bf8 (23.c5 Rc2+–; 22...f5 23.c5 e4 24.Nd5+–). Springer,Uwe – Tejler,A, corr SOK–90–68, 1990.

4.Qc2 d6!?

4.Qc2 Qe7 5.Nf3 d6 6.Nc3 Nf6 7.g3 g6 8.Bg2 Bg7 9.0–0 0–0 10.d4 ed4 11.Nd4 Na6 12.Rad1 Nc5 13.e4 Be6 14.Nce2 Bd7 15.Nf4 Ba4 16.Nb3 Rfe8 17.Rfe1 Rad8 18.Bf6 Qf6 19.Nd5 Qe5 20.Nc7 Rf8 21.Nd5 b6 22.Rb1 Kh8 23.Kh1 Qh5 24.Qd2 Rfe8 25.Re3 Qg4 26.f4 Qc8 27.Rc1 Bd7 28.Nd4 Bh3 ½–½. Springer,U – Ziese,Gerhard, corr SOK–90–68,1990.

4.Be5 Qc4

5.e3 Qc5 =+.

5.e3 Qc6 6.Nc3 +=. Grund.

5.e3 Qd5 6.Nf3 Nc6 7.Nc3 Qe6?? 8.d4?? Bb4 9.Bg7? Bc3–+ 10.Nd2 Ba1 11.Qa1= Nge7 12.Bh8+= Ng6 13.Bc4?? Qg4?? 14.0–0 Nh8 15.d5= Ng6 16.dc6 dc6 17.Qf6 Be6=+ 18.h3 Qf5 19.Qd4 Rd8–/+ 20.Qc3 Qe5 21.Qe5 Ne5 22.Be6 fe6 23.Ne4 h6 24.Rb1 b6 25.Rc1 a5 26.Nf6 Kf7 27.Ng4 Ng4–+ 28.hg4 c5 29.f4 Rd2 30.a4–/+ Rb2 31.Rd1 Ke7 32.Kf1 Ra2 0–1. gtate (1955) – bvboucher (2050), net–chess.com, 2005.

4.Be5 d6

5.Bc3 Qc4 A) 6.e3 Qg4 7.Nf3 Be7 8.h3 Qg6 9.Nd4 Nf6–/+; B) 6.Nf3 Qg4 7.e3 Be7 8.h3 Qg6 9.Na3 Nf6–/+.

5.Bd4 c5 6.Bc3 Qc4 7.e3 Qg4 8.Ne2 d5 9.Na3 Qd7 –/+.

5.Bd4 Nc6 6.e3 Nd4 7.ed4 d5 8.cd5 Bd6 9.Nc3 Qd4 =+.

5.Bf4 Qc4 6.e3 Qe6 7.Nc3 Nf6 8.Nf3 Be7 9.Rc1 c6 10.d4 0–0 11.Ng5 Qd7 12.Qc2 h6 13.Nf3 Nh5 14.Bg3 1–0. Buss,Michael – Macchiagodena,Maurizio, corr ICCF TT/4/90 Final, 1990.

5.Bg3 Qc4 =+. Grund.

3.e3 d5

4.a3 (--> 3.a3 d5 4.e3).

4.Ba3 Qd8 5.Bb2 Nd7 6.b5 c6 7.c4 Ngf6 8.Nf3 Bd6 9.Be2 0–0 10.d3 Re8 11.Nc3 d4 12.ed4= ed4 13.Nd4 Nc5 14.0–0 Bh2=+ 15.Kh2 Qd4 16.g3 Qd7 17.Rh1 cb5 18.Nb5 a6 19.Nd4 Na4 20.Qc2 Nb2 21.Qb2 b5 22.Bf3= Bb7 23.Bb7 Qb7 24.Rhe1 Red8 25.cb5 ab5 26.Qb5 Ng4 27.Kg1+= Qb5 28.Nb5 Rd3 29.Re2 g5 30.a4 h5 31.Kg2 Kg7 32.Raa2 Kg6 33.Re7 h4 34.Rb7 f6 (35.a5 Rh8 36.gh4 gh4–/+; 34...hg3 35.f3 Ne5 36.a5–/+) 0–1. Vesson,Eric – Tournaire,Olivier, corr EE/97.E.09, 1997.

4.Ba3 Qe6 5.Nf3 =+.

4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 e4 8.c4 dc4 9.Bc4 Qc5 (9...Qg5 10.g3+=) 10.Qb3 Bd7 Exerts pressure on the isolated pawn (better is 10...Qe7=) 11.Bf7 Kd8 12.Bc4 Ne7 13.Bd4 Qh5 14.Ba7 Kc8 15.Nc3 (better is 15.Ne2 Qg4 16.0–0+–) 15...Bh3?? (better is 15...Qg6 16.Nce2 b6+/–) 16.Nh3+– Nd7 17.Nf4 Qg5 (17...Qh6 18.Ne4 Ng6 19.Ne6+–) 18.Ne4 Qe5 (18...Qh4 19.g3 Qh6 20.Be6+–) 19.Qb1 (better is 19.d4 Qe4 20.Bd3 Qf4 21.ef4 b6+–) 19...b6 (19...Ng6 20.Bd4 Qe8+–) 20.d4 Qf5 21.Be6 Qe6 22.Ne6 Nf5 23.Nf8 (better is 23.Qc2 Bb4 24.Ke2 c5 25.dc5 Bc5 26.N4c5 bc5+–) 23...Rf8 24.0–0 Kb7 25.Qa2 (25.Nc5 Nc5 26.dc5 Ng3 27.hg3 Rf6 28.Qe4 c6 29.Qe7 Ka8 30.Qd8 Ka7 31.Qb6 Ka8 32.Ra1) 25...Kc8 26.Ng5 (26.Rc1 Kd8+–) 26...Nd6 27.Ne6 Nb7 28.Nf8 Nf8 29.Qg8 Nd8 30.Qf8 g6 31.Rc1 Kd7 32.Qg7 Kd6 (32...Nf7 33.Qf7 Kd8 34.Rc7 h6 35.Qe7) 33.Qc7 1–0. Hal1958 – Miker, playchess.de, 2002.

4.b5 c6 5.c4 dc4 6.Bc4 cb5 7.Bb5 Bd7 8.Bd7 Nd7 (worse is 8...Kd7 9.Ba3 Qe8 10.d4 ed4 11.Qd4 Kc8 12.Bf8 Qf8 13.Nd2+/–) 9.Nf3 g6 (9...e4 10.Nd4=) 10.0–0 (10.Ne5!? Ne5 11.Qa4 Qd7 12.Qd7 Kd7 13.Be5+/–) 10...Bg7 11.Ne1 Rc8 12.Nc3 Ngf6 13.Ne2 (13.Nb5!? a6 14.Ba3=) 13...0–0 14.d4 Nd5 (14...Rfd8 15.Qa4+=) 15.de5= Be5 16.Be5 Qe5 17.Nf3 Qe6 18.Ned4 Qd6 19.Rc1 a6 20.Qb3 b5 21.Nd2 Nc5 22.Qb1 Rfe8 23.N2b3 Na4 24.Rc8 Rc8 25.Rc1 Rc1 26.Qc1 Nac3 27.Qb2 Qb4 28.g3 (28.a3 Qc4=) 28...Nd1 29.Qd2 (29.Qe2 N5c3 30.Qd2 h6+=) 29...N5c3 (29...Qd2 30.Nd2 Nb4 31.Ne4–/+) 30.Kg2 Qc4 31.Kg1 Qa4 32.Kg2 (32.Nf5! Qa3 33.Qd8 Qf8 34.Ne7 Kg7 35.Qd4 f6 36.Qd7=) 32...Qa2–/+ 33.Qa2 Na2 34.Nc5 (34.Nc6 Nac3–/+) 34...Nb4 35.e4 Nc3 36.f3 a5 37.e5 (37.Kf2 a4–+) 37...a4 38.Nb5 (38.Kf2 Nbd5–+) 38...Nb5 39.Na4 Nd3 40.f4 Nd4 41.Nc3 Kf8 42.Ne4 Ke7 43.Nf6 h5 44.Kh3 (44.h4 Ke6–+) 44...Nf2 (44...Ne1!? 45.Ne4–+) 45.Kg2 Ng4 46.Nd5 Ke6 47.Nc3 Ne5! 48.Ne4?? (48.fe5 Ke5 Combination) 48...Nef3 49.Nf2 Kf5 50.Nh3 f6 51.Nf2 Ne1 52.Kf1 Nec2 53.Kg2 (53.Nd1 g5 54.fg5 fg5–+) 53...Ne3 54.Kg1 Ne2 55.Kh1 Nf4! 56.gf4 Kf4 0–1. Valpa – Rahim, playchess.de, 2004.

4.b5 e4 5.c4 Qb4 (better is 5...dc4!? 6.Bc4 Qg5=) 6.Ba3+/– Qa5 7.Bf8 Kf8 8.cd5 Nf6 9.Nc3 Bg4 (9...Ke8 10.Qc2 Bf5 11.Nge2+/–) 10.Qc2 Qb6 (10...Qb4 11.Rb1 Qc5 12.d4+–) 11.Ne4 (11.Bc4 Bf5+–) 11...Ne4 (better is 11...Nd5!? 12.Bc4 c6+–) 12.Qe4 Bd7 13.a4 Qc5?? (13...Qd6 14.Rb1+–) 14.Nf3 (better is 14.d6 Nc6 15.bc6 Bc6 16.Qe7 Kg8 17.Qc7 Qf5+–) 14...g6 (14...Kg8+–) 15.d6! Qd6 (15...Qd6 16.Qb7 Discovered attack; 15...cd6 16.Qb7 Discovered attack) 16.Qb7 (16.Qb7 Bc6 17.bc6 Qc6 18.Ba6 Qa6 19.Qa8+–) 1–0. Wall,Bill – Guest6027, internet, 2004.

4.b5 Bf5 5.g4 (5.d4 ed4 6.Bd4 c5 7.bc6 Nc6=) 5...Bg6 6.Nc3 Nf6 (6...d4!? 7.ed4 ed4 8.Nce2 Be4+=) 7.g5= Ne4 8.Nd5 Nf2?? (better is 8...Qd8 9.Bc4 c6 10.bc6 Nc6=) 9.Ne7+– (9.Kf2?! Qd8 10.c4 c6 11.bc6 bc6+–) 9...Nd1 10.Ng6 (10.Rd1?! Be4 11.Nf5 Bf5+=) 10...hg6 11.Rd1 Nd7 12.Nf3 f6 (12...e4 13.Ne5+–) 13.Bd3 0–0–0 14.Bg6 Nb6 15.Rg1 Nc4 16.Bc3 Ne3 (16...Nd6+–) 17.de3 Rd1 18.Kd1 Bc5 (18...c6 19.gf6 gf6 20.Bf5 Kc7 21.bc6 bc6 22.Ba5 Kb7 23.Bd8+–) 19.Ke2 a5 (19...a6 20.ba6 ba6 21.h4+–) 20.gf6 gf6 21.Ba5 b6 22.Bf5 Kb7 23.Bc3 Rh5 (23...Ka7 24.Rg7 Kb8 25.h4+–) 24.Be4 Kc8 25.Rg6 Be7 26.Rg8 Kd7 27.Bg6 Rh6 28.Bf5 Kd6 29.Bb4 Kd5 30.Be7 Kc4 31.Rc8 Kb5 32.Rc7 Rh7 33.Bd3 Ka5 34.Ra7 1–0. Fritz 11 – bernhard5, internet, 2014.

4.c4 Qb4 5.Be5 dc4 6.Bc7 =.

4.c4 Nf6 5.cd5= Nd5 6.a3 a5 7.Nc3 Be6 8.Qa4 Qd7 9.b5= Bd6 10.Nf3 0–0 11.Nd5+= Bd5 12.Ne5 Qf5 13.Qd4 Be5 14.Qd5+– Nd7 15.e4 Qf6 16.d4 (16...Bd6 17.Qb7+–; 16.Qd7 Bb2 17.Ra2 Rfd8=+) 1–0. kofti – S, ChessWorld.net, 2005.

4.h3 Qb4 5.Be5= Qe7 6.Nf3 f6 7.Bb2 Bd7 8.c4 Bc6 9.Nc3 Qe6 10.Nd4+/– Qd6 11.d3 dc4+= 12.dc4 Nd7 13.Be2 0–0–0 14.Bf3 Bf3= 15.Qf3 Ne5=+ 16.Qf5 Kb8 17.0–0 Nh6 18.Qf4?? g5 19.Qe4=+ f5?? 20.Qd5?? Qd5 21.cd5+= Bb4 22.Ne6 Rdg8?? 23.Nb5+– Rc8?? 24.Be5 Bd6 25.Nd6 cd6 26.Bd6 Ka8 27.Rfc1 b6 28.Rc7 g4 29.Rac1 a5 30.Rc8 Rc8 31.Rc8 Ka7 32.Rc7 Ka6 33.Rh7 Ng8 34.Nc7 Kb7 35.Nb5 Ka6 36.a4 (36...Ne7 37.Re7 gh3 38.Ra7) 1–0. gtate (1965) – cedp, net–chess.com, 2005.

4.h3 Nd7!? =+.

4.b5 Nd7

5.Be2 Qb4 6.Ba3 Qe4 7.Bf8 Nf8 (< 7...Kf8 8.Nc3 Qg2 9.Bf3=).

5.Be2 Ngf6 6.Nf3 Qe6 7.0–0 Bb4 8.Ng5 Qe7 9.a3 Ba5 10.f4 e4 11.c4 Nb6 12.cd5 h6 (12...Nbd5?! 13.Qa4 Bb6 14.Bc4=).

5.Be2 Qg5 6.Bf1 Bb4 7.a3 Bd6 8.Nf3 Qh6 9.d3 Ngf6 10.Nfd2 0–0 11.Be2 Re8 12.0–0 a6 13.a4 Nc5 14.Nf3? (better is 14.Nc3!?–/+).

3.e3 e4

4.b5 +=.

4.Qg4 Qb4 5.Bg7+/– Nf6?? 6.Bf6+– Qb2 7.Qe4 (7...Qe5 8.Qe5 Be7 9.Qe7#) 1–0. marekt – mimix312, GameColony.com, 2002.

4.Qg4 Nc6 5.Bg7 d6 =.

4.a3 a5

5.Nc3 ab4 6.ab4+= Ra1 7.Qa1 Kd8 (7...Na6 8.Ba6 ba6+/–).

5.Nc3 Nf6!? =.

5.Qg4 Nf6 6.Bf6 Qf6 7.Qe4 Be7 8.c3 (8.d4 ab4 9.Nf3 ba3 10.Ra3 d5 11.Qh7 Rh7 12.Ra8 Qb6–+).

3.e3 Nf6

4.a3 a5 5.b5 g6 6.d4 ed4 7.Bd4 Bg7 8.Nf3 0–0 9.Be2 c5 10.Be5 d5 11.Nc3 Re8 12.Rb1= Nbd7 13.Bf6 Nf6 14.Nd5 Nd5 15.Qd5 Be6 16.Qg5 Bc3 17.Kf1 a4 18.Qe7+= Re7 19.Bd3 Ba2=+ 20.Rd1 Rd8 21.Ke2 Rdd7 22.Nd2 Bd5 23.Nb1 Ba5 24.Kf1 Re8 25.Be2= Red8 (26.f3 Bf3 27.Rd7 Be2 28.Ke2 Rd7=). Woschkat,Karl_Heinz – Krueger,Erich, corr SOK–87–10, 1987.

4.b5 d5 5.Nf3 Bg4 6.h3 Bf3 7.Qf3 Nbd7 8.Nc3 e4 9.Qf5 0–0–0 10.Nd5+/– Nd5 11.Qd5 Nc5 12.Qc4 Qd7 13.Rd1 f5 14.Bd4 Qd5 15.Qd5+– Rd5 16.Bc4 Rd7 17.Bc5 Bc5 18.Be6 (18...Kd8 19.Bd7 Kd7 20.d4+–) 1–0. nordlicht – Knight, mySchach.de, 2003.

4.a3 d5

5.c4 a5 =+.

5.Nf3 Nbd7 6.Nc3 =.

5.Nf3 e4 6.Nd4 a5 7.b5 c5 8.bc6 bc6 9.c4 Qb7 10.Bc3 Be7 11.cd5 cd5 12.Ra2 0–0 13.Rb2 Qc7 14.Nb5 Qc6 15.d3 Bg4 16.f3 ef3 17.gf3 Bh5 18.Nd4 Qc8 19.Qa4 Re8 20.Rb5 Bc5 21.Ke2 Nbd7 22.Bg2 Qc7 23.Nc2 d4–/+ 24.Ba5 Qf4 (25.Kf1 Re3 26.Ne3 Qe3–+; 24...de3?! 25.Bc7 Ra4 26.Bh3=) 0–1. Kamminga,Gosse – Mrkvicka,Josef, corr CZE–NLD, 1999.

5.Nf3 e4 6.Nd4 Bg4 7.Be2 Be2 8.Qe2 Nc6 9.Qb5 Qd7 10.Qb7 Rb8 11.Qc6 h5 12.Nc3 Qc6 13.Nc6 Rb6 14.Na7 Ng4 15.Nd5 Rb7 16.Nc6 Rh6 17.Na5 Ra7 18.h3 Rd6 19.Nc3 Nf6 20.Nb5 1–0. pcmvr (2830) – nando (2170), net–chess.com, 2014.

3.e4 Qb4

4.Ba3 Qe4 5.Qe2 Qc2 6.Qe5 Be7 7.Nc3 Nc6?? 8.Qg7+= Ba3 9.Qh8 Nce7 10.Nge2 Kf8? 11.g3 d5 12.Bg2 Ng6? 13.Nd4?? Qd3 14.Nde2?? Nh8–+ 15.0–0 Qd2 16.Rad1 Qg5 17.Rd5 Qe7 18.Rfd1 Bg4 19.f3 Qe3 20.Kf1 Bf3 (21.R1d3 Bg2 22.Kg2 Qh6–+) 0–1. challl – pauldopson, net–chess.com, 2004.

4.Be5 Qe4 5.Qe2 Qe2

6.Be2 d6 7.Bb2 Bf5–/+ 8.Nc3 c6 9.d3 Nd7 10.Nf3 Ngf6 11.0–0 0–0–0 12.h3 h6 13.Rae1 d5 14.Nh4 Bh7 15.Nd1 Bb4–/+ 16.c3 Bd6 17.Ne3 Rhe8 18.c4 dc4–+ 19.Nc4 Bb4–/+ 20.Bf6? Nf6–+ 21.Rb1 Re2 22.Rb4 Bd3 23.a4 Nd5 (24.Rb2 Bc4 25.Re2 Be2–+) 0–1. Tejler,A – Ziese,Gerhard, corr SOK–90–68,1990.

6.Be2 d6 7.Bb2 Bf5 8.d3 Nc6 9.Nf3 0–0–0 10.0–0 d5 11.Nbd2 f6 12.Rab1 Bd6 13.Rfe1 Nge7 14.Bf1 h5 15.Nh4 Rh6 16.Nf5 Nf5 17.Nf3 g5 18.h3 g4–+ 19.Nh2 gh3?? 20.g3=+ Rg8?? 21.Bh3+/– Nce7 22.Bc1 Rhh8 23.Kf1?? h4 24.g4? Nd4 25.g5? Kb8–+ 26.gf6? Bh2 27.f4 Rg1 28.Kf2 Re1 29.Ke1 Ng8 30.f7 Nh6 31.Bb2 c5 32.c3 Bg3 33.Kf1 Ndf5 34.Bc1 Rh7 35.f8Q+– (35...Kc7 36.Qc5 Kb8 37.Qd5+–) 1–0. Queenwomen – S, ChessWorld.net, 2005.

6.Be2 d6 7.Bb2 Bf5 8.d3 Nf6 9.Nf3 Nc6 10.Bf6 gf6 11.0–0 Bg6 (11...d5 12.c3–/+) 12.Nbd2 0–0–0 13.a4 h5 14.a5 a6 15.h4 f5 16.Ng5 (16.d4 d5–/+) 16...Re8 17.Bf3 Ne5 18.Nc4 Nf3 19.Nf3 Re2 20.c3 Bh6 21.d4 Rhe8–/+ 22.Rae1 Re1 23.Re1 Re1 24.Ne1 f4 25.Nf3 Bd3 26.Nb2 Bb5 27.c4 Bd7 28.d5 c6 29.dc6 bc6–/+ 30.Nd3 d5 31.cd5=+ cd5 32.Nd4 Be6 33.Nc5 Kc7 34.Nde6 fe6=+ 35.Ne6 Kd6 36.Nd4 Kc5 37.Nf5 Bf8 38.f3 d4 39.Kf1 Kc4 40.Ke1 d3 41.Kd1 Kc3 42.g3 fg3 43.Ng3 Bb4 44.Nh5=+ Ba5 45.f4? d2?? 46.f5= Bd8?? 47.f6+/– Bf6 48.Nf6+– a5 49.h5 a4 50.h6 (50...Kd3 51.h7+–) 1–0. var – dadeetdeetbleep, Live Game Caissa's Web, 2004.

6.Be2 f6 7.Bc7 Na6 8.Bf4 g5 9.Be3 Bd6 10.Ba6 ba6+= 11.Nc3 Ne7 12.g4 Be5 13.h4 Bb7 14.f3 Rc8 15.hg5 Nd5 16.g6?? hg6?? 17.Rh8+– Ke7 18.Rc8 Bc8 19.Nd5 Kd6 20.Nc3 a5 21.Nge2 Bb7 (22.d4 Bh2+–). challl – pauldopson, net–chess.com, 2004.

6.Ne2 d6 7.Bb2 Nc6 8.Nd4 Bd7 9.Nc6 Bc6 10.Bd3 0–0–0 11.0–0 Nf6 12.Bf6 gf6 13.Nc3 Bh6 14.f4 Rhg8 (15.Bf5 Kb8=; 14...d5 15.Bf5 Bd7 16.Bd7 Rd7 17.Rae1=+). smoothmovermovesagain – shoulders, ChessWorld.net, 2006.

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  • 1.b4 (4 players, 1 day/move)
  • 1.b4 (4 players, 10 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 (4 players, 3 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
  • 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
  • 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
  • 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)

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