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TESTB100 Release 2016-12-15
Send your 1.b4 games to me, please. Thank you! /Marek
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(c) Marek Trokenheim

1.b4 c6

(...)

2.a3 a6 3.Bb2 e6 4.c4 Nf6 (4...d5 5.cd5 ed5 6.Qc2=) 5.b5 (5.e3!?+= might be a viable alternative) 5...cb5 6.cb5 Be7 (6...ab5 7.Nc3+=) 7.e3 (7.a4 d6=) 7...0–0 (7...ab5 8.Be2=) 8.Nc3 d5 9.Nf3 (9.ba6 ba6 10.Rc1 d4 11.ed4 Qd4=) 9...Nbd7 (9...ab5 10.Bb5 Bd7 11.Nd4=) 10.Rc1 Re8 11.Be2 Nc5 12.0–0 (12.ba6 Na6 13.d4 Qa5=) 12...Nfe4 (12...Bd7 13.ba6 Na6 14.h3=) 13.Na4 (13.Ne4 Ne4 14.ba6 ba6=) 13...b6 (13...Na4 14.Qa4 Bd7 15.Qd4+=) 14.d3 (14.Nc5!? is noteworthy 14...bc5 15.Ne5=) 14...Na4 15.Qa4 Nd6 (15...Nc5 16.Qg4 e5 17.Qg3=) 16.Qg4 (16.ba6 Ra6 17.Qc2 Bd7=) 16...Bf6 (16...f6!?=) 17.Bf6+= Qf6 18.a4 (18.Qb4!? Qd8 19.ba6 Ba6 20.Rc6+=) 18...e5 (18...Qb2 19.Qd4 Qe2 20.Qb6 ab5 21.Qd6 ba4 22.Qa3+=) 19.Qg5 (19.Qb4!? ab5 20.ab5=) 19...Qg5+= 20.Ng5 f6 21.Nf3 (21.Rc6 Rd8 (worse is 21...fg5 22.Rd6 ab5 23.ab5+/–) 22.Nf3 ab5 23.ab5 Ra2=) 21...Bb7 22.Rc7 Rac8 23.Rfc1 Rc7 24.Rc7= Rc8?? 25.Rd7+– e4? 26.de4 de4 27.Nd2 Rc1 28.Bf1 Nb5 29.ab5 Bc8 30.Rd8 Kf7 31.Ne4 Be6 32.Rb8 Rd1 33.Rb6 Bc4 34.Nd6 (34.Nd6 Kg6 35.Nc4 ab5 36.Rb5+–) 1–0. Corluy,H – De Cock,Cesar (1700), Brasschaat op, 2002.

2.a3 b5 (--> 1.b4 b5 2.a3 c6).

2.a3 e5 (--> 1.b4 e5 2.a3 c6).

2.Ba3 e5 3.e4 =+.

2.Ba3 Nf6 3.Nf3 a5 4.ba5 Ra5 (4...d6 5.Bb4=+) 5.Bb4 h5 6.Nc3 e6 7.Nd4?? c5 8.Nb3?? cb4–+ 9.Nb1?! Rf5 10.g3 Qb6 11.Bh3 Qf2# 0–1. Knights Lady – Checker Man, ChessWorld.net, 2002.

2.Ba3 g6 3.Nc3 Bg7 4.b5 cb5–/+ 5.Nb5 Ba1 6.Qa1 Nf6?? 7.Qe5+/– Na6 8.Nf3 d6?? 9.Bd6 e6?? 10.Nc7 Nc7+= 11.Bc7 Qe7 12.Ng5 h6 13.Qb5?? Nd7 14.Ne4+= 0–0 15.Bf4 Nf6 16.Nf6 Qf6= Do you see the mate threat? 17.Bh6?? Qa1 18.Qb1 Qb1# 0–1. Jolilein – MichaelKnopf, mySchach.de, 2005.

2.Na3 a5 3.b5= cb5 4.Nb5 Nc6 5.Ba3 d6 6.e3 Nf6 7.Be2 g6 8.Nf3 Bg7 9.d4 0–0 10.0–0 Nd5 11.Qd2 Nc7 12.c4 Na6 13.Nc3 Re8 14.Rab1 Ncb4 15.Bc1 e6 16.a3 Nc6 17.Na4 Nc7 18.Nb6+/– Ra7 19.Qc2 Na8 20.Nc8 Qc8 21.Ne1 Nc7 22.f4 Qd7 23.Nf3 Rb8 24.Bd2 Nd8 25.c5 Nc6+= 26.cd6 Qd6 27.Qa4 b6 28.Rfc1 Ne7 29.Ng5 Qd8 30.g4 h6 31.Nf3+= Ncd5 32.h3 Rc7+= 33.e4 Rc1 34.Rc1 Nf6 35.Bd3 Rc8 36.Rb1 Nd7+= 37.Qb3 Attacks the backward pawn on b6 37...Nc6 38.Be3 Qe7 39.e5 Bf8 The isolani on a3 becomes a target 40.Ra1 Kg7 41.f5 ef5 42.gf5 gf5 43.Bf5 Ncb8 44.Ra2 Kh8 45.Rg2 Qa3 46.Qa3 Ba3 47.Bh6 Rg8? 48.Ng5 (48...Rg5 49.Rg5+–) 1–0. Krueger,D – Grund,Karl, corr SOK–89–47, 1989.

2.Na3 e5 3.Nc4 =+.

2.Na3 Nf6 3.Nf3 e6 4.Rb1 d5 5.e3 Bd6=+ 6.d4 a5 7.c3 ab4 8.cb4 Ne4 9.Qb3 0–0 10.Bd3 Nd7 11.Nd2 Nd2–/+ 12.Bd2 e5 13.Nc2 Qg5 14.Bf1 Re8 15.g3 ed4 16.Nd4 Nf6 17.Bg2 Ne4 18.Bc1 Qf6 Black launches an attack 19.0–0 Qh6 20.Nf3 Bh3 21.Bb2 Qh5 22.Bh3 Qh3 23.a3 Qh5 24.Qd1 Qf5 25.Nd4 Qh3 26.Rc1 Re5 27.Qc2 Rh5 Do you see the mate threat? 28.f4 Rh6 29.Nf3 Rg6 30.Qg2 Qg4 31.Rfd1 Re6 32.Rd3 Rh6 33.b5 Nc5 34.Rdd1 Na4 35.Be5 Ba3 36.Ra1 Nb6 37.bc6 bc6–+ 38.Bc7 Nc4 39.Ne5 Ne5 40.Be5 Bf8 41.Qc2 Qc8 42.Ra8=+ Qa8 43.f5 Qa6 44.Bf4 Rh5 45.Rc1 Qa3 46.Rb1 g6 47.Rb8 Rf5 (47...Qa1 48.Kg2 Qf6 49.g4+=) ½–½. Krueger,D – Ihlenfeld,E, M52D, 1992.

2.a4 b5 (--> 1.b4 b5 2.a4 c6).

2.a4 d6 3.h4 Nf6 4.Nf3 g6 5.d4 Bg7 6.e3 Bg4 7.Be2 Nbd7 8.0–0 e5 9.c4 0–0 10.Nc3 Nh5 11.b5 (time). guest299 – guest1321, ICC, 2003.

2.Bb2 Nf6 (--> 1.b4 c6 2.Bb2 Nf6)

2.Bb2 h6 3.g3 d6 4.Bg2 e5 5.c4 Nf6 6.d4 Bf5 7.Nd2 g6 8.e4+= Bg4 9.Ngf3 Qb6 10.Qb3 d5 11.c5 Qc7 12.Ne5 b5?? 13.0–0 a5? 14.ed5 a4 15.Qc2 a3 16.Bc3 Nd5 17.Ng4 Bg7 18.Rfe1 Ne7 19.Ne4 0–0 20.Rad1 Nd7 21.Nd6 Nf6 22.Nf6 Bf6 23.Rd3 Qd7 24.Qd2 Bg5 25.f4 Bf6 26.Qe2 Nd5 27.Bd2 Be7 28.Bd5 Bd6 29.Bf7 Rf7 30.cd6 Qd6 31.Qe6 Rd8 32.Bc3 c5 33.bc5 Qd5 34.Qd5 Rd5 35.Bb4 g5 36.c6 gf4 37.gf4 Rf4 38.c7 (38...Rg5 39.Rg3+–) 1–0. coloplayah (1930) – davidjensen (1880), net–chess.com, 2005.

2.b5 d5 (--> 1.b4 d5 2.b5 c6).

2.c3 a5 (--> 1.b4 a5 2.c3 c6).

2.c3 b5 3.e3 a5 4.Bb2 ab4 5.cb4 g6?? (better is 5...Nf6=) 6.Bh8+– f6 7.a3 (better is 7.Qg4+–) 7...Nh6 8.Nc3 Nf5 (8...Nf7 9.Qf3+–) 9.Bf6! ef6 10.Nf3 Kf7 11.Be2 Bb4 (11...Kg7+–) 12.ab4 Ra2 (12...Ra1 13.Qa1 Na6+–) 13.Na2 Na6 14.Nc3 (better is 14.Qc2 Kg7+–) 14...Nb4 (14...Qe7 15.Qb3 Kg7 16.Na2+–) 15.Rb1 (15.Qb3 Nd5 16.e4 Kg7 17.ef5 Ne7+–) 15...Kg7 (15...Na6 16.d4+–) 16.Rb4 d5 17.Rb1 (better is 17.d4 Qe7 18.Qb3 Nd6+–) 17...Ne3 18.fe3 h5 19.0–0 Bg4 20.h3 Bf3 21.Bf3 Qb6 22.Nb5! cb5 23.Qb3 (23.Bd5 Qc5 24.Qb3 b4+–) 23...b4 24.Qb4 Qb4 25.Rb4 Kh6 26.Rfb1 d4 27.ed4 Kg5 28.d5 (28.d5 h4 29.d6 Kh6 30.Rh4 Kg5 31.Rg4 Kh6 32.d7 g5 33.d8Q Kg6 34.Be4 f5 35.Rb7 fe4 36.Qg5) 1–0. Fournier,Frederic (2010) – danielceballo (1725), Active Blind, 2008.

2.c3 Qb6 3.a3 a5 4.d3 ab4 5.cb4 c5 6.Bb2 cb4 7.ab4 Ra1=+ 8.Ba1 Qb4 9.Nd2 Nf6 10.Qb3 Qb3–/+ 11.Nb3 e6 12.Nf3 Be7 13.e3 0–0 14.Be2=+ Nc6 15.0–0 d5 16.Rd1 Bd7 17.e4 de4 18.de4 Rd8 19.Bd3 Nb4 20.Bc4 Ne4–+ 21.Re1 Nd6 22.Be2 Bc6 23.Nc5 Nc2 24.Rc1 Na1 25.Ra1 Ne4 26.Ne4 Be4 27.Ra4 Bf3 28.gf3 g6 29.Kg2 b5 30.Rb4?? Bb4 (31.Bb5 h6–+) 0–1. Unic – alexy1 (2000), ICC, 2003.

2.c3 Qc7 3.e3 e6 4.Nf3 Na6 (4...d5 5.d4=) 5.Bb2 Be7 6.d4 d6 7.Bd3 Bd8 8.Nbd2 Ne7 9.Qc2 Bd7 10.0–0 0–0? (10...Ng6 11.a4+=) 11.a3 (11.Bh7 Kh8 12.Bd3 f5+–) 11...Rb8? (11...Ng6 12.c4+/–) 12.Rfe1 (better is 12.Bh7 Kh8 13.Bd3+–) 12...b6?? (better is 12...Ng6!?+/–) 13.Rac1 c5? 14.bc5 dc5? 15.dc5 bc5?? 16.Be2 f6?? 17.Nb3 c4 18.Nbd4 Ba4?? 19.Qb1 Nc6?? 20.Nc6 Bc6 21.Nd4 Rb6?? 22.Nc6 Rc6= 23.Bf3 Be7 24.Bc6+/– Qc6 25.Qc2 Rb8 26.Rb1 Ba3?? 27.Ba3+– Rb1 28.Rb1 Nc5 29.Bc5 Qc5 30.h3 a5 31.Qb2 a4 32.Ra1 Kf7 33.Ra3 g5 34.Qa1 e5 35.Ra4 f5 36.g3 f4 37.ef4 gf4 38.Kh2 fg3?? 39.fg3 Qd6?? 40.Ra2 e4 41.Rg2 h5 42.Qg1 h4 43.Kh1 hg3 44.Rg3 e3 45.Re3 Qh6 46.Qe1 Qe3 47.Qe3 Kf6 48.Kg2 Kf5 49.Kh2 (49.Kh2 Kf6 50.h4 Kg7 51.Qe6 Kf8 52.h5 Kg7 53.Qe7 Kh6 54.Qf7 Kg5 55.Kg3 Kh6 56.Qg6) 1–0. Fournier,Frederic (1895) – dorado1978 (1705), Active blind, 2011.

2.c3 e6 (--> 1.b4 e6 2.c3 c6).

2.c3 g6 3.Bb2 e6 4.e3 Bg7 5.Nf3 Ne7 6.a3 b6 7.Be2 Bb7 8.0–0 Rf8 9.d4 c5 10.dc5 bc5 11.Nbd2 d6 12.Qc2 cb4 13.cb4 Bb2 14.Qb2 Nd7 15.Rfd1 Rc8 (15...Nd5 16.Nc4 N7b6 17.e4 Nc4 18.Bc4+/–) 16.Rac1 (16.Nc4!? Rc4 17.Bc4 Bf3 18.gf3 Nf5+–) 16...Rc1+/– 17.Rc1 Bf3 18.Nf3 (18.gf3?! Nf5+=) 18...f5? (18...Qb6 19.Qd2+/–) 19.h3 (19.Ng5 Qb8+–) 19...h5? (19...Nd5 20.Nd4 Kf7 21.Nb5+/–) 20.Rd1 g5?? 21.Bd3 f4?? 22.ef4 gf4 23.Qc2 e5?? 24.Be2 h4? 25.Rd2 d5 26.Qd1 e4 27.Nd4 f3 28.Nf3?? ef3+= 29.Bf3 Rf7?? 30.Bd5 Nd5= 31.Rd5 Re7 32.Rd7?? Rd7–+ 33.Qf3 Re7 34.Kh2 Rf7 35.Qg3?? hg3 (35...hg3 36.fg3 Qd1 37.g4 Rf1 38.h4 Qd6 39.g3 Qd2 40.Kh3 Rh1) 0–1. Fournier,Frederic (2035) – ghiooo, Active Blind, 2008.

2.Nc3 a6 3.Nf3= d6 (3...d5 4.e4=) 4.e3 (4.e4 e5+=) 4...g6 (4...Nf6 5.e4=) 5.Bb2 (5.Be2+=) 5...c5 (better is 5...Bg7!?=) 6.bc5+/– dc5 7.Bc4 (7.Ne4 f6+/–) 7...e6 (better is 7...Bg7!?+=) 8.Ne4+– g5?? (better is 8...f6 9.Nfg5! Qe7+/–) 9.Bh8 (9.Nfg5 b5 10.Nf7 Kf7 11.Qh5 Ke7 12.Bh8 h6+–) 9...g4 (9...b5 10.Bf1 g4 11.Nfg5+–) 10.Nfg5 e5 (10...h5 11.a4 Be7+–) 11.Bf7 (11.Bf7 Ke7 12.Bg8+–) 1–0. marre – miniUm1, internet, 2010.

2.Nc3 Qc7 3.Nf3 (3.e4 Nf6= (3...e5 4.a3 Nf6 5.d4 a5 6.b5 d5 7.Nf3 Bd6 8.bc6 bc6+=) 4.d4 (4.Nf3 e5 5.a3 d5 6.ed5 cd5 7.Qe2 e4 8.Bb2 a5=) 4...e5 5.a3 a5 6.b5 d5 7.Nf3 Bd6 8.bc6 bc6+=; 3.d4 A) 3...d5 4.e4 e5 5.a3 a5 6.b5 Nf6 7.Nf3 Bd6 8.bc6 bc6+=; B) 3...Nf6 4.e4 e5 5.a3 a5 6.b5 d5 7.Nf3 Bd6 8.bc6 bc6+=; C) 3...e5 4.a3 (4.Rb1 d5 5.de5 Qe5 6.Bd2 Bd6 7.Nf3 Qe7 8.b5 Nf6=) 4...d5 5.e4 a5 6.b5 Nf6 7.Nf3 Bd6 8.bc6 bc6+=; D) 3...b5 4.e4 (4.Bd2 e6 5.Nb1 a5 6.ba5 Nf6 7.Nf3 Ne4 8.e3 d5=) 4...e5 5.Rb1 a5 6.a3 Na6 7.ba5 Qa5 8.Nge2 ed4=) 3...e5 4.a3 (4.Rb1 d5 5.e4 d4 6.Ne2 Nf6 7.c3 Ne4 8.cd4 ed4=) 4...Bd6 (4...d5 5.e3+= (5.Bb2 Nf6 6.e3 Bd6 7.Be2 a5 8.ba5 0–0–/+) 5...Nf6 6.Bb2 Bd6 7.Be2 a5 8.ba5 Ra5–/+) 5.Ne4 (5.d4 Nf6 (5...ed4 6.Qd4 Be7+= 7.Bf4 Qb6 8.Rd1 Qd4+/–) 6.e4 a6 7.Bg5 b5 8.g3 Bb7+=) 5...Nf6 (5...Be7 6.Bb2 d6 7.Ng3= Nf6 8.e4 a5=) 6.Nd6 (6.Nf6 gf6 7.e4 Be7+= 8.c4 d6+=) 6...Qd6 7.Bb2 Ne4 (better is 7...e4!? 8.Nd4 0–0+=) 8.Be5 (8.e3 Qe7+/–) 8...Qd5? (better is 8...Qg6!?+/–) 9.c4+– Qe6 10.Bg7 Rg8 11.Bb2 Qc4? (11...d6+–) 12.d3 Nc3 (12...Qe6 13.de4 Qe4 14.Qd6+–) 13.Qd2 (13.dc4!? Nd1 14.Rd1 a5+–) 13...Qb4 (13...Qe6 14.Bc3 d5+–) 14.ab4 (14.ab4 Nd5 15.Qh6+–) 1–0. pierre – vekers, internet, 2010.

2.Nc3 Nf6 3.e4 e5 4.a3 Be7 (4...a5 5.ba5 Bc5 6.Nf3+=) 5.Nf3 d6 (5...a5 6.Bb2= (worse is 6.Ne5 ab4 7.Nb1 d6–/+)) 6.Be2 0–0 7.0–0 Ne8 (7...a5 8.b5=) 8.d4+= f6 (8...Nd7 9.Qd3+=) 9.Bc4 Kh8 10.Nh4 g6 (10...b5 11.Bb3 Nc7 12.a4+=) 11.Nf3 Ng7 12.d5 (12.Be3 b5 13.Be2 a5+=) 12...f5+= 13.Bh6 b5 (13...fe4 14.Ne4 b5 15.Be2+=) 14.Bb3 (14.Bd3 a5+/–) 14...Bb7 (14...fe4 15.Nd2=) 15.a4 (15.dc6 Bc6 16.ef5 Rf5+/–) 15...ba4 16.Ra4 1–0. pierre – peoli, internet, 2010.

2.Nc3 g6 3.Nf3 Bg7 4.e3 d5 5.Bd3 Nf6 6.0–0 0–0 7.Ba3 (7.Bb2 Qd6 8.a3 e5=) 7...b6 8.Qe2 a5 9.b5 c5 10.Qe1 Bg4 11.Ne5 Be6 12.f4 Ng4 13.Ng4 Bg4 14.Qh4 Be6 15.f5 Bc8 16.Rad1 Bb7 17.fg6 fg6 18.Rf8 Qf8 19.Rf1 Qe8 20.Be2 Nd7 21.Qh3 Nf6?? (better is 21...e6+=) 22.Qe6+– Kh8 23.Qb6 Qb8 24.Qc5 (24.Bc5?! Nd7 25.Qe6 Nc5 26.Qe7 Bf8=) 1–0. Anonymous – Anonymous, sv.lichess.org, 2011.

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

2.c4 f5 3.Bb2 e6 4.e3 Nf6 5.a3 d5 6.d4 Bd6 7.c5 Bc7 8.Nf3 0–0 9.Bd3 Bd7 10.0–0 Be8 11.Nbd2 Bh5 12.Be2 Nbd7 13.Ng5 Be2 14.Qe2 Ng4 15.Ndf3 Bh2 16.Nh2 Qg5 17.Ng4 fg4 18.f4 Qh4 19.g3 Qg3 20.Kh1 Rf6 21.Qg2 Rh6 22.Kg1 Qe3 23.Qf2 Qf2 24.Rf2 Rf8 25.Raf1 Rf5 26.Rh2 Rh2 27.Kh2 g5 28.Kg3 h5 29.Rf2 Nf6 0–1. Trkn – zweitausend, itsyourturn.com, 2001.

2.c4 h6 3.Bb2 e6 4.a3 Qg5 (4...d5!?=) 5.Nf3+= Qe7 6.e3 b6 7.d4 a5 8.b5 cb5 9.cb5 Bb7 10.Be2 Qf6 11.Nbd2 Ne7 (11...d5 12.Ne5+=) 12.0–0 Nf5 (12...Nd5 13.Rc1+/–) 13.Qc2 Nh4 (better is 13...Nd6+/–) 14.Nh4 Qh4 15.Nf3 (better is 15.Qc7 Bd5 16.e4+– (16.Qb6?! Qd8 17.Qd8 Kd8+–)) 15...Qd8+/– 16.Rac1 Be7 17.Qc7 Bd5 18.Qd8 Bd8 19.Rc3 (19.Nd2 0–0+/–) 19...0–0 20.Rfc1 Bf6 21.Rc8 d6 22.Rf8 Kf8 23.Rc8 Ke7+= 24.Nd2 Nd7 25.Ra8 Ba8= 26.Ne4?? Be4–+ 27.f3 Bc2 28.e4 e5 29.d5 Nc5 30.Kf2 g5 31.g4 Na4 32.Bc1 Nc3 33.Bc4 Ba4 34.h3 Nb5 0–1. Fournier,Frederic (1670) – riutronks, Active, 2008.

2.d3 a5 3.Bd2 ab4 4.Bb4 Nf6 5.e4 d5 6.e5 Nfd7 7.f4 c5 8.Bd2 e6 9.Nc3 Nc6 10.Nf3 f6 11.Qe2 fe5 12.Ne5 Nde5 13.fe5 Be7 14.g3 0–0 15.Nb5 Ne5 16.Bf4 Qa5 17.c3 Qb5?? (Better is 17...Ng6 18.Qb2 Bd7–+) 18.Be5 Bf6 19.Bf6 Rf6 20.Qc2 Qa4 21.Qd2 Bd7 22.h4 Raf8 23.Be2 e5 24.Bd1 Qa5 25.Bb3 Be6 26.0–0–0?? Rf2 (27.Rhe1 Qa3 28.Kb1 Rd2 29.Rd2 c4 30.dc4 dc4–+) 0–1. Pietrzak,Wojciech – Simon,Holger (1960), IECG, 2000.

2.d4 Nf6 3.Bg5 Nd5 4.Nf3 Qc7 5.e3 e6 6.a3+= Na6 7.Ba6+/– ba6 8.c4 Ne7 9.Bf4 Qb7 10.0–0 Ng6 11.Nc3 Nf4 12.ef4+/– Bd6 13.Ne4 Bf4+= 14.g3 Bc7 15.Qd3 0–0 16.Rad1 f5 17.Neg5 Bd8 18.g4? d5 19.c5? Qc7?? 20.Ne5?? Bg5–+ 21.f4 Bf6 22.g5 Be5 23.de5 Qf7 24.h4 Qh5 25.Qg3 Rb8 26.Kg2 a5! 27.Rb1 Ba6 28.Rfe1 ab4 29.ab4 Bb5 30.Kf2 d4 31.Rb2 d3 32.Rh1 Rfd8 33.Rd2 Bc4 34.Rb1 a5! 35.Rdb2 d2 36.Qg1 Qe2 (37.Kg3 Rd3 38.Qe3 Re3#) 0–1. tuaku – lilgia (1605), internet, 2007.

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

2.e4 Na6 3.c3 d6 (3...Nc7 4.d4=) 4.f3 (4.Ba6 ba6 5.Qa4 Qc7+=) 4...c5 (4...Nc7 5.d4=) 5.b5 (5.Ba6 ba6 6.Qa4 Qd7 7.Qd7 Bd7+=) 5...Nb8 6.Bc4 Be6 (Better is 6...e6!?=) 7.Be6+/– fe6 8.Nh3 Qa5 9.a4 Nd7 10.Na3 Nb6 11.Ng5 e5 12.Ne6 Nf6? 13.Nc7+– Kd8 14.Na8 Na8 15.Nc4 Qc7 16.a5 Nd7 17.b6 ab6 18.ab6 Ndb6 19.Nb6 Nb6 20.d3 g6 21.0–0 Bg7 22.Be3 e6 23.Bg5 Ke8 24.Qb3 h6?? 25.Qe6 (25…Kf8 26.f4 Qf7 27.fe5 Bf6 28.Rf6 Rh7 29.Bh6 Kg8 30.Ra8 Na8 31.Qc8 Qe8 32.Qe8#) 1–0. Wessel,Kai – Schroth,Andy, remoteschach.de, 2003.

2.e4 b5 (--> 1.b4 b5 2.e4 c6).

2.e4 c5 3.c3 d5 4.ed5 Qd5 5.d4 e6 6.Nf3 Nf6 7.Bf4 Nc6 8.Nbd2?? cd4–/+ 9.c4? Qd8?? 10.Nb3?? Bb4–+ 11.Bd2 Bd2 12.Qd2 e5 13.g3 0–0 14.Bg2 Bg4 15.0–0 Rc8 16.Rfe1 Re8 17.Rac1 Qb6 18.h3 Bh5 19.c5 Qc7 20.g4 Bg6 21.Na1?! Rcd8 22.Nc2 Ne4 23.Qd1 h6 24.Nh4 Nc5 25.Ng6 fg6 26.Na3 Ne6 27.Qc2 d3 28.Qd2 Nf4 29.Rc3 Ne2 30.Kh1 Nc3 31.Qc3 Qa5 32.Qb3 0–1. Lankof,Piotr – Palczynski,Adrian, Mistrzostwa Polski Juniorow do, 2008.

2.e4 d6 3.h3 Nf6=+ 4.g4 Ne4–+ 5.h4 Qb6 6.g5?? Qf2# 0–1. riverborne – christian108, Live Game Caissa's Web, 2006.

2.e4 g6 3.Bb2 f6 4.d4 d5 5.Nd2 Bg7 6.c4 e6 7.Ngf3 Ne7 8.Be2 0–0 9.0–0 Nd7 10.Qc2 f5 11.e5 h6 12.Rac1 g5 13.h3 Ng6 14.cd5 cd5 (14...Nf4 15.Nc4 ed5 16.Nd6+=) 15.Qc7 (15.g3 Ne7+/–) 15...Qe7 16.a3 h5 (16...Nf4 17.Rfe1=) 17.Rc2 (17.Bb5 g4 18.hg4 fg4+=) 17...g4+= 18.hg4 hg4 19.Nh2 (19.Ne1 Nf4 20.Bb5 a6=) 19...Nf4= 20.Bb5 a6 21.Bd7 Bd7 22.Qc5 (better is 22.Qb6!?+=) 22...Qg5–+ 23.Qd6 Bc6 (better is 23...Ba4!? 24.Rc7 g3 25.fg3 Ne2 26.Kh1 Rae8–+ (26...Qd2?! 27.Qe6 Kh7 28.Qe7 Ng3 29.Kg1 Ne2 30.Kh1–/+; 26...Ng3?! 27.Kg1 Ne2 28.Kh1–+)) 24.g3 Ne2 25.Kh1 Rae8 (25...Qh6 26.Nb3 f4–/+) 26.Re1?? (26.Nb1 Rf7 27.Qc5 Bb5+=) 26...Bb5?? (better is 26...Ba4!? 27.Nb3 Ng3 28.fg3 Bb3–/+) 27.Nb3 Bd3?? 28.Rce2+/– Be2 29.Re2 f4 30.Bc1 Bh6? 31.Bf4+– Qg6 32.Bh6 Qh6 33.Nc5 Rf7 34.Nd7 Ree7?? 35.Nf6+– Kg7 36.Nfg4 Qc1 37.Kg2 Qa3 38.Re3 Qb2 39.Rf3 Qd4 40.Rf7 Rf7 41.Nf3 Qg4–+ 42.Nh4 Qe4 43.f3 Qe2 44.Kh3–/+ Qf1 45.Kg4 Qc4–+ 46.f4 Kh7 47.Qe6+= Rg7 48.Kh5 Qe2 49.g4 d4 50.Qh6 Kg8 51.Qe6 Kh7 52.Qh6 ½–½. Lebedel,Marc (1630) – Louf,Claude, Gorges op, 2008.

2.Nf3 b6 3.Bb2 a6 4.e3 d6 5.d4 e6 6.Bd3 f6 (6...d5 7.a3+=) 7.0–0 g6 (7...d5 8.a3+=) 8.c4 Bg7 9.Nbd2 h6? (better is 9...Ne7+/–) 10.Bg6+– Kf8 11.a4 1–0. Fournier,Frederic (1980) – NN, jeu.europe–echecs.com, 2013. (=1.Nf3 c6 2.b4)

2.f4 d5 (--> 1.b4 d5 2.f4 c6).

2.f4 Nf6 3.e3 g6 4.Nf3 Bg7 5.Bb2 Qb6 6.a3 a5 7.Bd4 Qc7 8.Nc3 d6 9.Bc4 0–0 10.0–0 b5 11.Bd3 Nbd7 12.Ne4 Ne4 13.Bg7 (13.Be4 Nf6 14.Bd3 Bg4=) 13...Kg7 14.Be4 e5 15.fe5 de5 16.Ng5 Qd6 17.c3 h6 18.Nf3 f5 19.Bc2 Nf6 20.d4 e4 21.Ne5 Nd5 22.Qd2 Be6 23.c4 Ne7 24.cb5 ab4 25.g4 (25.ab4 cb5 26.Ra5 Ra5 27.ba5 Rd8=) 25...cb5 26.gf5 gf5 27.ab4 Kh7 28.Kh1 Nd5 29.Bb3 Ne7 30.Bc2 Nd5 31.Bb3 Ne7 32.Bc2 Nd5 33.Qe2 Nb4 (33...Ra1 34.Ra1 Rg8 35.Bb3 Qb4 36.Bd5 Bd5 37.Qh5+=) 34.Qh5 (better is 34.Ra8 Ra8 35.Qh5+/–) 34...Bg8?? (34...Bd5 35.Ra8 Ba8 36.Rf5 Bd5+= (36...Nc2?? 37.Rf7 Rf7 38.Qf7 Kh8 39.Ng6 Qg6 40.Qg6+–)) 35.Ra8+– Ra8 36.Qf5 Kh8 37.Be4 Ra2 (37...Ra7 38.Ng6 Kg7+–) 38.Nf7 (38.Nf7 Kg7 39.Nd6 Rh2 40.Kh2 Nd5 41.Qe5 Nf6 42.Qf6) 1–0. Borik,Juraj (2170) – Kralovic,Andrej (2135), SVK–chT1W, 2008.

2.g3 e5 3.Bb2 f6 4.a3 =+.

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

2.h3 e6 3.a3 d5 4.Nf3 Nf6 5.e3 Be7 6.Bb2 0–0 7.Bd3 h6 8.0–0 Nbd7 9.Ne5 Ne5 10.Be5 Bd6 11.Bd6 Qd6 12.f4 c5 13.bc5 Qc5 14.Nc3 Bd7 15.Qb1 b6 16.Qb4 Bc6 17.Ba6 Rfd8 18.d4 Qd6 19.Rfc1 Qb8 20.Rab1 Nd7 21.Nb5 Bb5 22.Bb5 Nf6 23.Bc6 a5 24.Qb5 Ra7 25.c4 dc4 26.Rc4 Ne4 27.Be4 Rc7 28.Bc6 Rdc8 29.Qb6 1–0. Rosner – Hasler, F003–SOK 1999.

2.Nh3 e6 3.a3 d5 4.d4 a5 5.ba5 Nf6 6.Nd2 Qa5 7.c3? (better is 7.e3=+) 7...Qc3–+ 8.Nf4?? (8...Qa1 9.Nb3–+; 8.Ra2 Qd4 9.e3–+) 0–1. Brandenburg,Markus – Lisakowski,Christof (1960), remoteschach.de, 2006.

2.a3 Qb6

3.Ra2 d5 4.Rb2 (4.Bb2 a5=) 4...e5=+ 5.Rb3 a5 (better is 5...Nf6=+) 6.c4? (better is 6.Bb2!? Bd6 7.ba5 Qa5 8.Rg3=+) 6...dc4–+ 7.Re3 ab4 8.Qc2 (8.Re5 Be6 9.ab4 Nf6–+) 8...b3 (better is 8...Bc5 9.Re5 Be6 10.Rc5 Qc5–+) 9.Qd1? (9.Re5 Be6 10.Qc4–+) 9...b2 10.Bb2 Qb2 11.d3 (11.Nf3 Nd7 12.Ne5 Ne5 13.f4–+) 11...Ra3 12.Re5 Qe5 13.Na3 Bb4 14.Qd2 Qa1 15.Nb1 (15...Qb1#) 0–1. ragnew – fernschachblitz (1745), net–chess.com, 2004.

3.c4 (--> 1.b4 c6 2.c4 Qb6 3.a3).

3.e3 (--> 1.b4 c6 2.e3 Qb6 3.a3).

2.a3 d5

(--> 1.b4 d5 2.a3 c6).

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

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

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

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

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

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

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

2.a3 e6

3.Bb2 Nf6 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 c6).

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

2.Ba3 d5

3.d4 Bf5 4.e3 e6 5.Be2 (5.c4 Bd6=+) 5...Nf6 (5...Qg5 6.g3=+) 6.Nf3 Bd6 7.Nh4 (7.0–0 Qe7=+) 7...Ne4 (7...Be4!?=+) 8.Nf5= ef5 9.Bd3 (9.c4 dc4 10.Bc4 b5=) 9...0–0 (9...Qe7 10.c3=+) 10.0–0 (10.Qf3 f4=) 10...Qh4 Do you see the mate threat? 11.f4 (11.g3 Qe7=) 11...Nd7 (11...b5 12.Qf3–/+) 12.Rf3 (12.b5 Ba3 13.Na3 Ndf6=+) 12...Ndf6 (12...Qe7 13.c3–/+) 13.Qf1 (13.Qe2 Rfe8=+) 13...Ng4 (13...Ng5 14.Bf5 Nf3 15.gf3 Rfe8–+) 14.Rh3 (14.h3 Ngf6–/+) 14...Qf6 (better is 14...Qf2!? 15.Qf2 Nef2–/+ (15...Ngf2?! 16.Rf3 Ng4 17.b5=+)) 15.Be4=+ de4 16.Qe2 (16.c3 b5=+) 16...Qg6 (16...Bf4 17.b5 Be3 18.Kf1 Rfc8 19.bc6 Rc6–+ (19...Bd4 20.c3 Bc3 21.Nc3 Nh2 22.Kg1 Rc6 23.Bb2=+; 19...Qd4?! 20.c3 Qe5 21.cb7 Qf4 22.Ke1 Bf2 23.Kf1–+)) 17.Rg3=+ Rae8 (better is 17...Qh6 18.h3 Nf6=) 18.h3+/– Nf6?? 19.Rg6+– fg6 20.b5 Ba3 21.Na3 cb5 22.Nb5 a6 23.Nc7 Re7 24.Qc4 Kh8 25.Ne6 Rfe8 26.Ng5 h6 27.Nf7 Kh7 28.Ne5 Nh5 29.Rb1 Ng3 30.Kf2 Nh5 31.Rb6 Rd8 32.Ng6 Ree8 33.Ne5 Rc8 34.Qb3 Rc7 35.Nc4 Rec8 36.Nd6 Rc2 37.Kg1 +–. Lekarka – donesteban8, Live Game Caissa's Web, 2006.

3.Nf3 Qb6 4.Ne5?? (4.e3 Nf6=+) 4...f6?? (better is 4...Qd4 5.Nf7 Kf7–+ (5...Qa1?! 6.Nh8 g6 7.Nc3 Qd1 8.Nd1–+)) 5.Nd3=+ e5 6.c3 a5 7.ba5 Ra5 8.Bf8 Kf8 9.Qc1 e4 10.Nf4 Ne7 11.e3 Ng6 12.Ng6 hg6 13.Be2 (13.d4 c5=) 13...Be6 14.Na3 Nd7 15.Nc2 c5 16.0–0 (better is 16.f4!?=+) 16...Qc7 17.g3 Ne5 18.d4?? (better is 18.f4 ef3 19.Bf3–+) 18...ed3–+ 19.Bd1 dc2 20.Bc2 (20.Qc2 g5–+) 20...Nf3 21.Kg2 Bg4 22.h3 (22.h4 Qd7 23.Rh1–+) 22...Rh3 23.Rh1 Rh1 (better is 23...Nh4! 24.Kg1 Rg3 25.Kf1–+) 24.Qh1 Ng5 25.Kg1 Kf7 (better is 25...Nh3 26.Kg2 Qe5 27.c4–+) 26.Qd5 Ke7 (26...Be6 27.Qg2–+) 27.Bg6 (27.Qg8 Kd6–+) 27...Bf3 (better is 27...Be6 28.Qd3 Ba2–+) 28.Qg8–/+ Kd6 29.c4 (29.Rb1 b5 30.Qf8 Kc6–+) 29...Ra3 30.Qf8? (better is 30.e4–/+) 30...Kc6–+ 31.Be8 (31.Rb1 b6 32.Bf5 Kb7–+) 31...Kb6 32.Rb1 (32.Bg6 Be2–+) 32...Ka7 33.Rb2 (33.Kf1–+) 33...Rd3 34.Rb1 Re3! 35.a4 (35.fe3 Qg3) 35...Re2 36.a5 Nh3 37.Kh2 Nf2 38.Qg7 (38.Qc5 Qc5 39.Rb7 Bb7 40.Bg6 Ng4 41.Kh3 Rh2 42.Kg4 Qg5#) 0–1. pinecrest1981 – Voldemort, Live Game Caissa's Web, 2004.

3.Nf3 e6 4.e3 Qb6 5.b5 cb5 6.Bf8 Kf8 7.Nd4 (7.a3 a6=) 7...a6 8.Be2 Nf6 9.Nb3 Ke7 (9...Qd6 10.0–0=+) 10.d4 Re8 11.0–0 Kf8 12.Nc5 Nbd7 13.Na3? (better is 13.Nd3–/+) 13...Nc5–+ 14.dc5 Qc5 15.Qc1 Bd7 16.Nb1 Rac8 17.c3 Ne4 (17...b4 18.Qc2–+) 18.Bf3 Nc3 19.Nc3 Qc3 20.Qd1 Qf6 21.e4 de4 22.Be4 Bc6 23.Bc6 bc6 24.a4 c5 (24...Kg8!? 25.Qb3–+) 25.Qd6 Kg8 26.Qa6 ba4 27.Qa4 c4 28.Rac1 c3 29.Qd7 (29.Rfd1 Red8–+) 29...Red8 30.Qb5 c2 31.Qe2 Qb2 32.Ra1 (32.Qh5 Qb4–+) 32...Qc3 (better is 32...c1Q 33.Qb2 Qb2–+) 33.h4 (33.Rac1 Qd3 34.Qe5 Rd5–+) 33...Rd2 34.Qe1 (34.Qg4 Rcd8 35.Kh2 f5–+) 34...Rcd8 35.Rc1 Qd3 36.Qe3 Qe3 37.fe3 Rc8 (37...f5 38.e4–+) 38.Kh2 (38.Rf2 Rd1 39.Rf1 Rc1 40.Rc1 f5–+) 38...Re2 (better is 38...Rc3–+) 39.Rce1 (39.Rfd1–+) 39...Re1 40.Re1 (40...c1Q 41.Rc1 Rc1 42.Kg3–+) –+. pinecrest1981 – audionut, Live Game Caissa's Web, 2004.

2.a4 d5

(--> 1.b4 d5 2.a4 c6).

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

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

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

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

2.a4 Nf6

3.Bb2 e6 4.e3 Bb4 5.Nf3 0–0 6.Be2 (6.Ne5 d6 7.Nd3 Ba5–/+) 6...d5 (6...d6 7.c3 Ba5 8.d4–/+) 7.0–0=+ Nbd7 8.c4 (8.d4 Qa5–/+) 8...b6 (8...dc4 9.Na3–/+) 9.Qb3 (9.d4 c5–/+) 9...Be7 (9...Bd6 10.cd5 Nc5 11.Qc2 cd5 12.d4–/+) 10.Nc3 (10.Qc2 dc4 11.Bc4 c5–/+) 10...Qc7 (10...dc4 11.Qc4 Nc5 12.d4–/+) 11.a5 (11.cd5 ed5 12.Rfc1 Re8=+) 11...Ba6 12.ab6 ab6 13.Ra3?? (13.d4!? dc4 14.Bc4 Bc4 15.Qc4–/+) 13...Nc5 (better is 13...Bc4 14.Bc4 Ba3 15.Ba3 dc4 16.Qc4 Ra3–+) 14.Qa2 Bc4 15.Ra8? Ba2–+ 16.Rf8 Kf8 17.Na2 Qa7 18.Bf6 Bf6 19.Nc3 Qa1 20.Rb1 Qa5–+ 21.h3 Bc3 22.dc3 b5 23.Rb4 Na6 24.Rb1 Qc3 25.Kh2 b4 26.Nd4 c5 27.Nb5 Qc2 28.Re1 Qd2 29.Ra1 Qe2 30.Ra6 Qb5 31.Ra8 Ke7 32.Ra7 Kf6 33.g4 b3 34.g5 Kg6 35.Rf7 Kf7 36.h4 b2 37.h5 b1Q (38.Kg2 Q5f1 39.Kg3 Qg1 40.Kh4 Qf2 41.Kg4 Qbf5#) 0–1. MIjares (2190) – Eralos (2090), ajedrez21.com, 2003.

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

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

2.Bb2 e5

(--> 1.b4 e5 2.Bb2 c6).

3.e3 d6 (--> 1.b4 e5 2.Bb2 d6 3.e3 c6).

3.e4 d6 (--> 1.b4 e5 2.Bb2 d6 3.e4 c6).

3.Be5 Bb4 4.Bg7 Nh6 5.Bh8 Bc5 6.e3 Qh4 7.Nf3 Qb4 8.Bc3 Qa4 9.d4 Bb4 10.Qd2 a5 11.Bb4 ab4 12.Ng5 d5 13.Nh7 Bf5 14.Nf6 Kd8 15.e4 de4 16.Qh6 Qc2 17.Qf8 Kc7 18.Ne8 Kb6 19.Qb4 Ka7 20.Na3 Na6 21.Ba6 e3 22.Qb7# 1–0. Machete99 – guest1790, ICC, 2002.

3.Be5 Nf6 4.a3 d5 5.e3 Bd6 6.d4 Qe7 7.Nf3 Nbd7 8.Bd6 Qd6 9.Nc3 0–0 10.Bd3 h6 11.0–0 Re8 12.Re1 Ne4 13.Be4 de4 14.Nd2 f5 15.f3 Nf6 16.f4 Be6 17.Nf1 Nd5 18.Na4 b6 19.c4 Nf6 20.c5 Qc7 21.cb6 ab6 22.Ng3 g6 23.Qc2 Rec8 24.Nc3 b5 25.a4 Bc4 26.ab5 Ra1 27.Ra1 cb5 28.Rd1 (28.Ra6 Kg7 29.Qd2 Qe7+=) 28...Bd5 29.Nge2 Bc4 30.Qd2 Qd6 ½–½. Meisinger,Peter (1710) – Brunner,Hermann, T0002 DESC, 2000.

2.Bb2 e6

(--> 1.b4 e6 2.Bb2 c6).

3.a3 Nf6 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 c6).

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

3.e3 Nf6 4.a3 d5 5.f4 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.f4 e6 5.a3).

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

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

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

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

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

2.Bb2 f5

3.a4 d5 4.Nf3 e6 5.b5 Nf6 6.e3 Bb4 7.Be2 0–0 8.0–0 Ba5 9.d3 Nbd7 10.Nd4 Re8 11.bc6 Nc5 12.cb7 Bb7 13.Nc3 a6 14.f4 Qd7 15.Bf3 Bc3 (better is 15...e5!? 16.fe5 Re5+=) 16.Bc3+– Na4 17.Bb4 Rac8 18.c4 Nc5 19.Ra5 Nd3 20.Qd3 dc4 21.Qc2 Nd5 22.Bd5 ed5 23.Nf5 Re4 24.Nd6 Qe7 (24...Re3 25.Nc8 Qc8+–) 25.Rb1 (25...Rd8 26.Ne4 Qe4 27.Qe4 de4 28.Bc3+–; 25.Nc8?! Qb4 26.Qb1 Qa5 27.Qb7 Qc5+/–) 1–0. Trkn – guest3203, ICC, 2004.

3.a4 e6 4.e3 Nf6 5.Nf3 Bb4 6.Be2 0–0 7.0–0 d5 8.c4 Ba5 9.Qb3 Qb6 10.Qc2 Nbd7 11.d3 Re8 12.d4 h6 13.Nbd2 Qd8 14.Rfc1 Bd2 15.Qd2 Ne4 16.Qc2 Ng5 17.Nd2 Nf6 18.a5 a6 19.f3 Ngh7 20.Bd3 g6 21.Bc3 Re7 22.Rab1 Rg7 23.Nf1 Rb8 24.cd5 Nd5 25.Ba6 Nc3 26.Qc3 Ra8 27.Bc4 Qa5 28.Qb2 Qa3 29.Qb6 Qa5 30.Qb3 Nf8 31.Qd1 Qd8 32.Qb3 Qe7 33.Ra1 Ra1 34.Ra1 Qc7 35.Rc1 Kh7 36.Ng3 Qa5 37.Qb2 Re7 38.Ra1 Qd8 39.Ra8 b5 40.Bb3 Rc7 41.Qa3 Kg7 42.Ne2 g5 43.Qc5 Nd7 44.Qd6 Rb7 45.Be6 Qf6 46.Rc8 Nf8 47.Qc6 Qe7 48.Re8 Qc7 49.Qc7 Rc7 50.Bf5 Rb7 51.Bc2 b4 52.Bb3 Nd7 53.Re7 Kf6 54.Rf7 Kg6 55.g4 Ra7 56.Kf2 Ra3 57.Rd7 Rb3 58.Rb7 Rb2 59.Ke1 b3 60.Nc3 h5 61.Rb6 Kf7 62.gh5 Kg7 63.Nd1 Rh2 64.Rb3 Kh6 65.Nf2 Kh5 66.Rb6 Rh4 67.Ng4 Rh1 68.Kf2 Rh2 69.Nh2 g4 70.Ng4 Kh4 71.Rg6 Kh5 72.Rg8 Kh4 73.f4 Kh5 74.Kf3 Kh4 75.Rh8 1–0. Gadaskin,Genadi – Pennig,Josef, Koblenz, 2000.

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

2.Bb2 Nh6

3.c4 d5 =.

3.e4 d5 4.Nc3 d4 5.Nce2 e5 6.f4 (6.c3 d3 7.Nc1 Bg4+=) 6...f6 (6...Bb4 7.fe5 Qh4 8.Ng3=) 7.Nf3 Bg4 (7...d3 8.cd3 ef4 9.Qb3=+) 8.fe5 Bf3 9.gf3 fe5 10.Rb1 (10.a3 a5=) 10...Be7 11.c4 0–0 12.Bh3 (12.Qb3 Nf7=+) 12...Bh4 (12...Rf3 13.Be6 Kh8 14.c5–/+) 13.Ng3=+ Na6 14.c5 Nf7 (14...Kh8 15.a3=+) 15.Qb3 Nc7 16.Rg1 a5 17.a3 ab4 18.ab4 Ra7 (18...Kh8 19.Bf5=+) 19.Ra1 Ra1 20.Ba1 Nb5 (20...Kh8 21.Bf5=+) 21.Bf1 Qa8 22.Bb2= Nc7 23.Kd1 Bg3 24.hg3 Rd8 25.Rh1 Rd7 26.Bc4 Qe8 27.d3 h6 28.Bc1 Re7 29.f4 Ne6 30.f5 Nc7 31.Rh4 Rd7 32.Bd2 Re7 33.Rg4 Kh7+/– 34.Bc1 Rd7 35.Be6 Re7= 36.Bf7 Qf7 37.Qf7+= Rf7 38.Rg6 Rd7 39.g4 Rd8 40.Rd6+/– Rb8 41.Bd2 Ne8 42.Re6 Nf6 43.g5 Ng4 44.gh6 gh6 45.Be1 Ra8 46.Re7 Kg8 47.Rb7 h5 48.Ke2 Ra2 49.Bd2 Ra8 50.Rb6 Rc8 51.Bg5 Rc7 52.Rb8 Kg7 53.Re8 Ra7 54.Re6 Rc7 55.f6 Kf8 56.Re7 Re7 57.fe7 Ke8?? 58.b5+– Nh6 59.b6 Kf7 60.Bh6 Ke7 61.b7 Kf6 62.b8Q h4 63.Qf8 Ke6 64.Qg7 h3 65.Bg5 h2 66.Qe7# 1–0. Edchess 2.30 – Edchess 1.0, 1995.

3.e4 d5 4.ed5 cd5 5.Nf3 =.

3.e4 d5 4.ed5!? Qd5 5.Nc3 =.

3.e4 f6 4.d4 d5 5.ed5 (5.Nd2 Nf7+=) 5...Qd5 (5...cd5 6.a3=) 6.Nc3 Qg5 (6...Qd6 7.a3+=) 7.Nf3 Qg6 8.h3 e6 9.a3 Bd6 10.Bc1 Nf5 11.g4 Ne7 12.Bd3 f5 (12...Qf7 13.g5+=) 13.Rg1 Qf7 14.gf5 ef5 15.Qe2 h6 (15...g6!?+/–) 16.Bc4+– Qh5? (better is 16...Qf6 17.Ne5 Rf8+/–) 17.Rg7 Kf8 18.Rf7 Qf7 19.Bf7 Kf7 20.Ne5 Kf6 21.Bf4 h5 22.0–0–0 Kg7 23.Qc4 Rf8 24.Rg1 Kh7 25.Qe2 Be5 26.Qh5# 1–0. pierre – niterider, ChessWorld.net, 2005.

2.b5 cb5

3.e3 b4 4.Bb2 Nc6 5.d4 (5.Nf3!?=+) 5...d5–/+ 6.c4 Nf6 (6...bc3 7.Nc3 Bf5 8.Qb3=+) 7.c5 (7.Nf3 Bf5–/+) 7...e6 (7...Bg4 8.Be2 Be2 9.Ne2–/+) 8.Bb5 Qa5 9.Bc6 (9.Bd3 Be7–/+) 9...bc6 10.Qd2 (10.Nf3!?–/+) 10...Ne4–+ 11.Qc1 Be7 12.f3 (better is 12.Nf3–+) 12...Bh4=+ 13.g3 Ng3 (13...b3 14.Nd2 Nd2 15.Qd2 Bd8 16.ab3 Qb5=+) 14.hg3 =+.

3.e4 Qa5 4.Nf3 Nc6 5.Nc3 b4 6.Nd5 Nf6 7.Nf6 gf6 8.Bc4 Rg8 9.0–0 d6 10.d4 Bg4 11.Be3 f5 12.h3 Bh5 13.ef5 Qf5 14.Kh2 Bf3 15.gf3 d5 16.Be2 e6 17.Qd2 Bd6 18.f4 0–0–0 19.Rg1 Ne7 20.Bg4 Qf6 21.c3 Ng6 22.cb4 Nf4 (22...Bf4?! 23.Bf4 Nf4 24.Rac1 Kb8 25.Rc3–/+) 23.Rac1 Kb8 24.Rg3 h5 25.Bf3 Qh4 (25...Qh4 26.Bf4 Bf4–+) 0–1. Andre,Ricardo – Davila,Oscar Alfredo (1730), BI–2009–F–00011, 2010.

3.e4 b4 4.a3 ba3 5.d4. Schild,Reinhard – Eisengraeber_Pabst,Axel, DESC, 2000.

2.c3 Qa5??

3.ba5+– b6 (3...e5 4.e4+–) 4.ab6 ab6 5.e3 Ba6 6.Ba6 Na6 7.Qe2 Nc7 8.Nf3 0–0–0 (8...Nf6 9.e4+–) 9.d4 Nf6 10.Bd2 (10.Ne5 Re8+–) 10...d6 11.0–0 (11.Ng5 Rg8+–) 11...Kb7 12.c4 e5 13.de5 de5 14.Nc3 (14.Ne5 Rg8+–) 14...b5 15.cb5 cb5 16.Rab1 Kb8 17.Rfc1 (better is 17.Nb5 Bc5 18.Qc4 Bb6+–) 17...Nd7 18.Be1 (18.Nb5 Na8 19.Nc7 Ndb6 20.Qa6 Bc5 21.Rc5 Nc7 22.Rb6) 18...Nb6 19.h3 (19.Nb5!? Nca8+–) 19...f5 20.Nd2 (20.Nb5 Nca8 21.Bc3 Rd7+–) 20...Bd6 21.Nb3 e4 22.Rd1 h6 23.g3 Rhe8 24.Kg2 g5 25.Ra1 f4 26.ef4 gf4 27.Ne4 fg3 28.fg3 Bf8 29.Rd8 Rd8 30.Rd1 Rd1 31.Qd1 Bb4 32.Bb4 Nbd5 33.Qd5! Nd5 34.Kf3 Nb4 35.Nd4 Na2 36.g4 b4 37.Nd2 b3 38.N2b3 Nc1 39.Nc1 Kc7 40.Nd3 Kd6 41.Ke3 h5 42.gh5 1–0. Fournier,Frederic (1790) – javiverde (1885), Active, 2011.

3.ba5+– e5 4.Bb2 d5 5.e3 Bf5 6.Nf3 Bc5 (6...Bg4 7.h3 Bf3 8.Qf3+–) 7.d3 (better is 7.Ne5!? Bd6 8.Qb3 Be5 9.Qb7 Ne7+–) 7...Nd7 8.Be2 0–0–0 (8...Ngf6 9.d4 Bd6 10.c4+–) 9.Nbd2 h5 (9...Ngf6 10.0–0+–) 10.0–0 h4 11.h3 g5 (11...Ngf6 12.c4 e4 13.Ne1 dc4 14.de4 Ne4 15.Ne4 Be4 16.Bc4+–) 12.e4 de4 13.de4 Be6 (13...Bg6 14.Ng5 Be7 15.Ngf3+–) 14.Qc2 (better is 14.Ng5 Nf8+–) 14...g4 15.hg4 Bg4 16.Nh2 (better is 16.Nb3 Bf3 17.Bf3+–) 16...Be2 17.Rfe1 Bg4 (17...Ba6+–) 18.Ng4 h3 19.gh3 (19.Nf3 f6+–) 19...Ngf6 (19...Rh3 20.Kf1+–) 20.Nf6 Nf6 21.Kf1 Rhg8 22.Qd1 Bf2 23.Re2 Bd4 24.cd4 ed4 25.Nf3 Ng4 26.hg4 Rh8 27.Kf2 Rdg8 28.Bd4 Rg4 29.Bh8 Kc7 30.Re3 Rg1 31.Qg1 (31.Qg1 b6 32.Qg8 f6 33.Qh7 Kd6 34.Rd1 Kc5 35.Qf5 Kc4 36.Rd4; 31.Be5 Kc8 32.Qd6 Rg2 33.Kg2 c5 34.Qc7) 1–0. Fournier,Frederic (1915) – alpope (1675), Active Blind, 2008.

3.ba5+– e5 4.e4 +–.

2.c3 a6

3.Bb2 Nh6 4.e3 b5 (4...e5 5.Nf3 e4 6.Nd4=) 5.a3 (5.a4 ba4 6.Nf3 Qb6+=) 5...e6 6.Nf3 f6 7.d4 Nf7 8.Bd3 d5 9.Nbd2 Nd7 10.Qc2 Bb7 (10...e5 11.e4+=) 11.0–0 Bd6 12.Rfe1 Qc7 13.Rac1 (better is 13.e4 e5 14.a4+=) 13...Bh2?? (better is 13...f5=) 14.Nh2+– g5 15.Nhf3 (15.Bh7 f5+=) 15...h5 16.Kf1 (better is 16.e4!? e5+–) 16...h4 17.Ke2 f5 18.Kd1 Rh7? 19.Nb3 g4 20.Nfd2 g3 21.fg3 hg3 22.Nf1 Ke7 23.Be2 Rah8 24.Qd3 Rh2? 25.Nh2 gh2 26.Rh1 c5 27.bc5 a5 28.Bf3 b4 29.ab4 a4 30.Na5 Ba8 31.Ra1 e5 32.de5 Nde5 33.Qe2 Nf3 34.Qf3 d4 35.Qf2 de3 36.Qe3 Kf8 37.Kc1 Rg8?? 38.Kb1 Bg2 39.Ka2 Bh1 40.Rh1 Rg1 41.Rg1 hg1Q 42.Qg1 Qa5 43.ba5 1–0. Fournier,Frederic – hardware, Active Blind, 2008.

3.Bb2 Nh6 4.e3 d6 5.Nf3 f6 6.d4 Nf7 7.Bd3 e6 8.Nbd2 Nd7 9.0–0 b5 10.a3 Bb7 11.h3 (11.c4 Be7+/–) 11...Qc7 12.Qc2 0–0–0 (12...c5!?+=) 13.Rfe1 g5 14.e4 (14.c4 Re8+/–) 14...Bg7 (14...h5 15.Nh2+/–) 15.e5 (better is 15.c4+–) 15...fe5= 16.de5 (16.a4 Nb6=) 16...Nfe5 17.Ne5 Ne5 (worse is 17...de5 18.c4+/–) 18.Be2 Rhf8 19.Nf3 g4 (better is 19...Qf7!?–/+) 20.Ne5= Be5 (worse is 20...de5 21.Bg4 Qd7 22.Qh7+–) 21.hg4 (21.Bg4 Qf7=) 21...Rf7 22.Bf3 Rdf8 23.Rad1 c5+= 24.Bb7 Qb7 25.bc5? dc5?? 26.c4?? Bb2 27.Qb2 Rf2 28.Qf2 Rf2 29.Kf2 bc4 30.Kg1 Kb8?? 31.Kh1?? Ka7 32.Rc1 Qb6 33.Red1? Qb7 34.Rd2?? Kb6?? 35.Rdc2?? Kc6 36.Rc4 Qc7?? 37.a4 a5?? 38.Rc5+– (38.Rc5 Kd6 39.Rc7+–) 1–0. Fournier,Frederic (1950) – hardware (1870), Active Blind, 2008.

3.Bb2 Nh6 4.e3 e5 5.Nf3 e4 6.Nd4 =.

2.c3 d5

(--> 1.b4 d5 2.c3 c6).

3.Bb2 Bf5 4.e3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Bf5 4.c3).

2.c3 Nf6

3.Ba3 Qb6 4.e3 d5 5.Bd3 (5.Nf3 Bf5=+) 5...g5 (5...e5 6.Be2–/+) 6.Qf3 (6.Be2 g4=+) 6...g4=+ 7.Qf4 h5 (7...Nbd7 8.Bf5=+) 8.Qe5 (8.Ne2 h4=+) 8...Nbd7 9.Qg5 (9.Qd4 Qd4 10.ed4 e5–/+) 9...Bh6 (9...h4 10.Bf5=+) 10.Qh4=+ Ne5 11.Be2?? (11.Bc2 Ne4 12.Be4 de4–+) 11...Bf5 (better is 11...Ng6 12.Qf6 ef6–+) 12.Qg3 (12.d4 Ng6 13.Qf6 ef6–+) 12...Nfd7 13.b5 cb5 14.Bb4 0–0–0 15.Na3? Bg5 16.h4–/+ Bf6 17.Nb5 Nd3 18.Bd3 Bd3 19.a4 Be5 20.f4 Bd6 21.a5?? Qa6?? 22.Nd6 ed6 23.f5 Qc6 24.Bd6 Nf8 25.Bf8 Rhf8 26.a6 b6 27.Qf4 Qd6 28.Qg5?? b5 29.Qh5?? Rh8 30.Qg4+– Rhg8 31.Qh3 Rg3 32.Qh2 Bf5 33.h5 Rdg8? 34.h6 Be4? 35.h7 Rh8+= 36.Qh6 Kc7?? 37.Rh5?? Rh7 38.Qf4?? Rh5 39.Qf7= Kc6 40.Qb7 Kc5= 41.Qa7 Kc4=+ 42.Qd4 Kb3 43.Qb4?? Qb4–+ 44.cb4 Rh1 45.a7 Rg1 46.Kf2 R3g2 0–1. kingsteel – abe, Live Game Caissa's Web, 2004.

3.e3 b5 4.Nf3 e6 (4...a5 5.Bb2=) 5.Bb2 Be7 6.d4 (6.a4 ba4 7.Qa4 d6=) 6...0–0 (6...a5 7.a4 ab4 8.ab5 Ra1 9.Ba1+=) 7.Bd3 (7.a4 Ba6=) 7...h6 (7...a5 8.a3=) 8.Nbd2 (8.a4 Ba6+=) 8...Bb7 9.h3 (9.a4 a5+=) 9...Qc8 (9...a5 10.ba5 Qa5 11.0–0=) 10.a3 d6 11.0–0 Nbd7 12.Qc2 a6 13.Rfe1 Rb8 14.Rac1 c5 15.dc5 dc5 16.Qb1 cb4 (better is 16...c4!? 17.Bc2 Rd8+=) 17.cb4+= Qd8 18.Ne4 Ne4 19.Be4 Be4 20.Qe4 Nf6 21.Qb1 Rc8 22.Rc8 Qc8 23.Rc1 Qd7 24.Rd1 Qc8 25.Bf6 Bf6 26.Qc2?? Qc2–+ (26...Qc2 27.Re1 Qb3–+) 0–1. Fournier,Frederic (1820) – jaguar76 (1940), Active, 2011.

3.e3 d5 4.Bb2 e5 5.Nf3 Bd6 6.d3 0–0 7.Nbd2 Nbd7 8.Be2 Bc7 9.Qc2 a5 10.0–0 ab4 11.cb4 b6 (better is 11...Qe7!?+=) 12.a3 1–0. Fournier,Frederic (1865) – rayo78 (1890), Active blind, 2011.

3.e3 e5 4.Be2 +=.

2.Nc3 a5

3.b5 d5 4.e3 e5 5.Nf3 e4 6.Nd4 Nf6 7.a4 (7.bc6 Nc6 8.Ncb5 Bg4+=) 7...Bb4 8.bc6 bc6 9.f3 0–0 10.Be2 ef3 11.Bf3 Bc3 12.dc3 Ba6 13.Kf2 Qc7 14.Ba3 Re8 15.Nf5 (15.Rb1 Bc4–+) 15...Qe5–+ 16.g4 g6 17.Bd6 Ne4 (17...Qc3 18.Ne7 Kg7 19.g5+=) 18.Be4 Qe4 19.Nh6 Kg7 20.Bf4 Nd7 21.Qd4 f6 22.Kg3 Qc2 23.Rhc1 Qe4 24.Rab1 Qd4 25.cd4 Rac8 26.h4 White plans g5 26...Re4 27.g5 c5 28.dc5 Rc5?? (better is 28...Rc6–/+) 29.Rc5+– Nc5 30.Rb8 fg5 (30...Bc8 31.Rc8 Re3 32.Kg2 fg5 33.hg5 Re2 34.Kh3 Rh2 35.Kh2 Na4 36.Be5) 31.hg5 (31.hg5 Re3 32.Kh4 Rh3 33.Kh3 Bc8 34.Rc8 Na4 35.Be5) 1–0. Anonymous – Anonymous, sv.lichess.org, 2011.

3.Nf3 ab4–/+ 4.Bb2? bc3–+ 5.g4 cb2 6.Rb1 Ra2 7.c4 Qa5 8.Nd4 Ra1 9.f4 Qa2 10.Rg1 Rb1 11.Rg2 Rd1 12.Kf2 b1Q 13.Nf3 Rf1 14.Kg3 h5 15.gh5 Nf6 16.f5 Qf5 17.d3 Qg4# 0–1. tsaunders – elmoe (2000), net–chess.com, 2004.

2.Nc3 Qb6

3.a3= Nf6 4.Nf3 g6 5.e4+= Bg7 6.d4 0–0 7.Be3 d5 8.Bd3 (8...de4 9.Ne4 Ne4 10.Be4=). maz_manchester – FatMaHa, ChessWorld.net, 2005.

3.Rb1 a5 4.b5+= e6 (4...Qd8 5.e4+=) 5.bc6 Qc6 6.Nf3 (6.e4 Bb4 7.Nge2 Nf6+=) 6...Na6 (6...Nf6 7.Bb2+=) 7.e3 (7.e4 Bb4 8.Bb5 Qc5+=) 7...Nc5 (7...Nf6 8.Bb2+=) 8.Bb5 (8.Ne5 Qc7 9.d4 Nf6+/–) 8...Qc7 9.d4 Na6 10.Bb2 (10.Bd2 Nf6+/–) 10...Nb4 (10...Nf6 11.0–0+=) 11.a3 Nd5 (11...Nc6 12.d5 Na7 13.de6 fe6 14.Nd4 Nb5 15.Qh5 Kd8 16.Qg5 Ne7 17.Ncb5+/–) 12.Nd5 ed5 13.c4! dc4 14.Ne5 c3 (14...Nf6 15.Bc4 d5 16.Qa4 Kd8 17.Bb5+/–) 15.Rc1 (15.Qb3 Nh6 16.Rc1 Qd8 17.Rc3 Bd6+–) 15...Bd6 (15...Qb6!? 16.Qb3 Qe6 17.Qe6 fe6 18.Rc3 Nf6+/–) 16.Rc3+– Qb6?? (better is 16...Qd8 17.Qg4 Be5 18.de5 Kf8+–) 17.Qb3 a4 (17...Be5 18.Bd7! Bd7 19.Qb6 Bf6+–) 18.Rc8! Rc8 (18...Rc8 19.Qf7 Mate attack) 19.Qf7 Kd8 20.Qd7# 1–0. b4player – oppo, internet, 2009.

3.Rb1 d5 4.e4 de4 5.Ne4 =.

3.Rb1 Nf6 4.Nf3 (4.e4 e5=) 4...d6 (4...d5 5.a3=) 5.e3 (5.e4 d5 6.e5 Ne4 7.Ne4 de4+=) 5...g6 (5...e5 6.b5 c5 7.Bc4=) 6.Bb2 Bg7 7.Bd3 (7.b5 0–0=) 7...0–0 (7...Qb4 8.Ne4 Qa4 9.Bf6 Bf6 10.Nf6 ef6 11.Rb2+=) 8.0–0 Qc7 (8...e5 9.b5=) 9.h3 (9.b5 d5=) 9...e5 10.Ba3 (10.b5 d5 11.Be2 e4=) 10...Re8 11.e4 Nbd7 (11...d5 12.b5=) 12.b5 Nh5 (12...a6 13.bc6 Qc6 14.Qe2=) 13.bc6 bc6 14.Bc4 Nf4 15.Ng5 d5 (better is 15...Re7!?=) 16.ed5+/– cd5 17.Bd5 Nd5 18.Qf3 N7f6 19.Nd5 Nd5 20.Qd5 Ba6 21.d3 Rad8 22.Qb3 h6 23.Ne4 Kh7 (23...Re6 24.Bb4+/–) 24.Qa4 Bb7? (better is 24...Bc8!?+/–) 25.Nd6!+– Bc6 (25...Rd6 26.Qb4 Double attack (26.Qe8 Deflection; 26.Qb4 Decoy)) 26.Ne8 Re8 (26...Ba4?? 27.Nc7 Bc2 28.Rb7+–) 27.Qc4 1–0. b4player – oppo, internet, 2009.

2.Nc3 e6

3.a3 d5 =.

3.b5 c5 4.Na4 Nf6 5.Ba3 Qa5 6.c4 d5 7.Bc5= Bc5 8.Nc5 dc4 9.Rc1 Qb5 10.Na4 0–0 11.Nc3 Qe8 12.e3=+ b6 13.Qf3 Nc6=+ 14.Nh3 Bb7–/+ 15.Qf4 e5 16.Qf5 Qe7 17.Ne4? Ne4–+ 18.Qe4 Nb4 19.Qc4?? Rac8 20.Qc8 Rc8 21.Rc8 Bc8 22.a3 Nc2 23.Kd1 Na3 24.Bd3 b5 25.Ke2 b4 26.Rc1 Be6 27.f4 ef4 28.Nf4 g5 29.Nh5 b3 30.Bb1 Nb1 31.Rb1 a5 32.d4 a4 33.e4 Bc4 34.Ke3 a3 35.e5 a2 36.Rc1 b2 37.Rc4 Qb7 38.Nf6 Kh8 39.d5 b1Q 40.Kd4 Q7b6 (41.Rc5 a1Q 42.Ke3 Qc3 43.Kf2 Qbe1#; 40...a1Q 41.Ke3 Qe1 42.Kf3 Qad1#) 0–1. Jolilein – Sanji, mySchach.de, 2005.

3.b5 d5 4.Nf3 =+.

3.d4 Bb4 4.Bd2 d5–/+ 0–1. Robbie101 – Rudolf, internet, 2007.

2.c4 a6

3.Bb2 b5 4.c5 Bb7 5.e3 e6 6.d4 h6 7.Nf3 g5 (better is 7...a5!? 8.a4 ab4 9.ab5 Ra1 10.Ba1 cb5=) 8.d5+– Rh7 9.d6 a5 10.a3 ab4 11.ab4 Na6 12.Bd3 g4?? (12...f5 13.Qb3 Nf6 14.Nc3+–) 13.Nfd2 (better is 13.Bh7 Nf6 14.Bf6 Qf6 15.Nd4+–) 13...f5+/– 14.Bc3 (better is 14.Qb3!? Rf7 15.e4+/–) 14...Bg7+= 15.Qb3 Bc3 16.Qc3 (worse is 16.Nc3 Nc5 17.bc5 Ra1 18.Ndb1 Nf6–+) 16...Rb8? (better is 16...Qf6=) 17.e4+– f4 18.e5 Rf7? 19.Bg6 Nc7 20.Bf7 Kf7 21.dc7 Qc7 22.Na3 h5 23.Nc2 h4 24.Qd4 g3 25.Qf4 Ke7 26.hg3 hg3 27.Rh7 Kd8 28.Qf8 1–0. Fournier,Frederic – NN, jeu.europe–echecs.com, 2013.

3.Bb2 Nf6 4.e3 Qb6 5.a3 c5 6.Nc3 cb4= 7.Na4 Qa5 8.c5 Nc6= 9.ab4 Nb4 10.Bc4 Qd8?? 11.Qb3 a5?? 12.Nb6 Ra7?? 13.Bf7# 1–0. nogumo – MichaelKnopf, mySchach.de, 2005.

3.d4 e5 4.a3 ed4 5.Qd4 d5 =.

2.c4 b6

3.Bb2 Nf6 4.e3 e6 5.a3 Bb7 6.Nf3 d5 7.cd5 cd5 8.Bb5 Bc6 9.Qa4 Bb5 10.Qb5 Qd7 11.Nc3 Bd6 (11...Nc6 12.Rc1 Rc8 13.Ne2+=) 12.Qd7 (12.Rc1 0–0+=) 12...Kd7 13.Nb5 Rc8 (13...a6 14.Nd6 Kd6 15.Bf6 gf6 16.d4=) 14.Ke2 (14.Ng5 Be7 15.Nf7 Nc6+=) 14...Rc2 (better is 14...a6!? 15.Nd6 Kd6=) 15.Bc3+/– Nc6 16.Kd3 Rc3 17.Nc3 h6 18.h3 e5 19.Ke2 (19.e4 de4 20.Ne4 Nd5+/–) 19...Re8 (19...e4 20.Nd4 Nd4 21.ed4+/–) 20.d3 e4 (20...Nd4 21.Nd4 ed4 22.Nd1+/–) 21.de4+– de4 22.Nd2 Be5 23.Rac1 Bc3 24.Rc3 Nd5 25.Rc2 f5 26.g3 g5 27.Nc4 b5 28.Rd1 Ke6 29.Nb2 Ne5+/– 30.Rc5 Rd8 31.Rdc1 a6 32.Rc8 Rd6 33.Rh8 Kf7 34.Rcc8 Ng6 35.Rhd8 Rd8 36.Rd8 Nc3 37.Ke1 Ne5 38.Rd6 Nf3 39.Kf1 Nh2 40.Kg2 Nf3 41.Rh6 Ne2 42.Ra6 f4 43.gf4 gf4 44.ef4 Nf4 45.Kg3 Ne2 46.Kg4 Nc3 47.h4 1–0. Fournier,Frederic (2215) – Vekemans,Paul, Ch Club, 2001.

3.Nf3 e6 4.Bb2 Bb4?? 5.Bg7+– d5 6.cd5 cd5 7.Bh8 Nc6 8.Bc3 Bc3 9.Nc3 Nf6 10.d4 Bd7 11.g3 Qc7 12.Rc1 Rc8 13.Bg2 e5 14.Ne5 Ne5 15.de5 Qe5 16.0–0 Rc3 17.Rc3 Qc3 18.Bd5 Be6 19.e4 (19...Ke7 20.Qa4+–; 19.Be6!? fe6 20.Qa4 Nd7 21.Qa7 Qc2+–) 1–0. wlittle (2200) – goonel (1675), net–chess.com, 2005.

2.c4 Qc7

3.Bb2 d6 4.d4 e5 5.de5 (5.e4 ed4 6.Bd4 c5 7.bc5 dc5=) 5...de5 6.c5 (6.a3 Bf5=) 6...Bg4 (6...b6 7.Nf3 Nd7 8.e4+=) 7.Nd2 (7.h3 Bf5=) 7...Nf6 8.Ngf3 Nbd7 9.e3 Be7 10.Be2 Nd5 11.Qb3 0–0 (11...a5 12.a3 ab4 13.ab4 Ra1 14.Ba1 b6=) 12.Nc4 (12.Bc4 Rad8=) 12...Bf6 (12...e4 13.Nd4 Be2 14.Ne2–/+) 13.Nd6 (13.h3 Be6+=) 13...b6 14.Nb5 cb5 15.Qd5 bc5 16.bc5 (16.Bb5 e4 (worse is 16...cb4 17.Bd7 Bd7 18.Be5–/+) 17.Bf6 Nf6 (17...ef3 18.Bd7 fg2 19.Rg1+–) 18.Qc5 Qc5 19.bc5 ef3–+) 16...Nc5 (16...Bf3 17.gf3 Nc5 18.f4–+) 17.Rc1–/+ Qa5 (17...Rac8 18.Qd2–+) 18.Qd2 (18.Bc3 Qa3 19.Bd2–+) 18...b4–+ 19.0–0 (19.Be5 Bf3 20.Bf3 Be5 21.Ba8 Bc3 (21...Ra8?! 22.Qd5 b3 23.Ke2 Qa6 24.Kf3–/+) 22.Rc3 bc3–+) 19...Rad8 (19...Rfd8 20.Qc2 Qa2 21.Qc5 Qb2 22.Rc2–+) 20.Qc2 Bf3 21.gf3 Na4 22.e4 Bg5–+ 23.Rcd1 Nc3 24.Bc3 bc3 25.Rd8 Rd8 26.Rd1 Bd2 27.Rb1 Qc7 28.Bd1 Qe7 29.Kf1 Qh4 30.Qa4 Qh2 31.Bc2 Bg5 32.Rd1 Rd1 33.Bd1 Qh1 34.Ke2 g6 35.Qe8 Kg7 36.Qe5 Bf6 37.Qc5 Qh6 38.Qe3 Qe3 39.fe3 h5 40.f4 Bh4 41.e5 Bg3 42.Kf3 h4 43.Kg4 Be1 44.Bc2 Kf8 45.e6 fe6 46.Bg6 Ke7 47.Bc2 Bd2 48.e4 h3! 49.Kh3 Bf4 50.Kg4 e5 51.Kf3 Kd6 52.Ke2 Kc5 53.Kd3 Kb4 54.a3 Ka3 55.Kc3 Bg3 56.Kc4 Bf2 57.Kc3 a5 58.Kc4 Be1 59.Bd1 Kb2 60.Ba4 Kc1 61.Kd3 Bb4 62.Bb3 Kb2 63.Kc4 Ka3 64.Bd1 Kb2 65.Ba4 Kc1 66.Kd3 Bc5 67.Kc4 Bf2 68.Kd3 Kb1 69.Kc3 Be1 70.Kd3 Ka1 71.Kc4 Ka2 72.Bd1 Ka3 73.Bc2 Kb2 74.Ba4 Bd2 75.Bd1 Bg5 76.Ba4 ½–½. Fournier,Frederic – Nguyen Huu Hoang, Open \ Paris FRA, 1998.

3.Bb2 Nf6 4.e3 (4.Nf3 d6=) 4...g6 (4...e5 5.a3=) 5.Nf3 Bg7 6.Be2 0–0 7.0–0 d5 8.cd5 cd5 9.a3 e5? (better is 9...Bg4=) 10.Be5+– Qd7 11.Bb2 Nc6 12.d4 Ne4 13.Nbd2 Nf6 (13...a6 14.Qc2 Qe7 15.Ne4+–) 14.Rc1 Ng4 15.h3 Nf6 16.Bd3 a5 17.b5 Ne7 18.Ne5 Qd6 19.Ndf3 (19.Qc2 Nd7+–) 19...Ne4 20.Qc2 Bd7? (20...f6 21.Nc4! Qe6 22.Ncd2+–) 21.a4 (better is 21.Qc7 Be8 22.a4+– (22.Qb7?! Rb8 23.Qc7 Bb5+/–)) 21...Rfc8 22.Qb1 Rc1 23.Rc1+– Nc8? 24.Nd7 Qd7 25.Be4 de4 26.Qe4 Nd6 27.Qd5 Rd8 28.Qc5 Bf8 29.Qc7 Qe6 30.Ne5 Rc8 31.Qa5 Rc1 32.Bc1 Ne4 33.Qc7 Qf5 34.Nf3 Qd5 35.Qc2 Qf5 36.g4 Qd5?? 37.Nd2 Ng5 38.Kh2 Bd6 39.f4 Nf3 40.Nf3 Qf3 41.Qg2 Qd1 42.Bd2 g5 43.a5 gf4 44.ef4 Qa4 45.b6 Qd4 46.Kg3 Qd3 47.Kh2 Qe4?? 48.Qe4+– Bf4 (48...Bf4 49.Bf4 h5 50.Qe8 Kg7 51.gh5 f6 52.h6 Kh7 53.Qf7 Kh8 54.Qg7). Fournier,Frederic – ASUAT78, Partie evaluee, 5m + 0s, 2007.

2.c4 g6

3.Bb2 f6 (--> 1.b4 g6 2.Bb2 f6 3.c4 c6).

3.Bb2 Nf6 4.a3 Bg7 5.e3 Nh5 (5...d6!?=) 6.Bg7+= Ng7 7.Nf3 0–0 8.d4 b6 9.Be2 Bb7 (9...d6 10.0–0+/–) 10.Nc3 Nf5 11.0–0 d6 12.Rc1 (12.e4 Ng7+/–) 12...Nd7 13.Ne4 (13.e4 Ng7+/–) 13...c5+= 14.Ned2 cb4 15.ab4 Rc8 (15...e5 16.Bd3+=) 16.Qa4 a6 17.Nb3 (17.Bd3 e5+/–) 17...Ra8 (17...Bc6 18.Qa2+/– (18.Qa6? Ra8 19.Qa1 Ra1 20.Ra1 Bf3 21.Bf3 Qc7–+)) 18.c5+/– b5 19.Qa5 Qa5 (19...Rc8 20.Rfd1+/–) 20.Na5 (worse is 20.ba5 Rfc8+=) 20...Bf3 (better is 20...Bd5!?+/–) 21.Bf3+– Rac8 22.Bb7 Rc7 23.Ba6 dc5 24.dc5 Ra7? 25.Bb5 Nb8 26.Bd3 e6 27.Bf5 ef5 28.c6 Rc8? 29.Rc5 Ra6? 30.Rfc1 Rc7 31.g3 Rb6 32.b5 Kg7 33.Nc4 Nc6 34.bc6 Rbc6 35.Rc6 Rc6 36.Kf1 Kf6 37.Ke2 Kg5 38.f3 Kh6 39.Kd3 Rc8 40.Kd2 Rd8 41.Kc3 Rc8 42.Rb1 Ra8 43.Rb2 Ra1 44.Ne5 Re1 45.Kd3 Rd1 46.Ke2 Rh1 47.Kd3 Rd1 48.Kc3 Rc1?? 49.Kb3 Rc8 50.Nf7 Kg7 51.Nd6 Rb8 52.Kc3 Rd8 53.Nc4 Rc8 54.Rb7 Kh6 55.e4 fe4 56.fe4 Re8 57.e5 Rf8 58.Kd4 Rd8 59.Ke4 Rc8 60.Nd6 Rc1 61.Rb2 Re1 62.Kd5 Rd1 63.Ke6 Rc1 64.Kf6 Rf1 65.Ke6 Rd1?? 66.Kd7+– Kg7 67.e6 Re1 68.e7 Re7 69.Ke7 Kh6 70.Rb5 Kg7 71.g4 h5 72.gh5 gh5 73.Rh5 Kg6 74.Ra5 Kg7 75.Ke6 Kg6 76.Ne4 Kg7 77.Rg5 Kf8 78.Rg6 Ke8 79.Rf6 Kd8 80.Rf7 Kc8 81.Kd6 Kb8 82.Kc6 Ka8 83.Kb6 Kb8 84.Rf8 1–0. Fournier,Frederic – JARNAU, Owl21.com, 2008.

3.Bb2 Nf6 4.e4 =.

2.d3 e5

3.Bd2 d5 4.c4 Nf6 5.e3 Nbd7 6.Nf3 e4 7.de4 de4 8.Nd4 c5 9.Nc2? (better is 9.bc5!? Bc5 10.Nc3+=) 9...Ne5–+ 10.bc5 Bg4 11.Be2 Bc5 12.0–0 Be2 13.Qe2 Qd3 14.Qd3 ed3 (14...Nd3?! 15.Bc3 0–0–0 16.Nd4+=) 15.Nb4 Ne4 16.Nd5 0–0 17.Rc1 Rfd8 18.a3 f5 19.Nf4 Rd7 20.Ra2 Rc8 21.a4 Ng4 22.Nh3 Bd6 23.g3 Ne5 24.Nf4 Kf7 25.h4 Nc4 26.Nd3 Bg3 (26...Ncd2?! 27.Nd2 Rc1 28.Nc1–+) 27.fg3 Rd3 (27...Ncd2 28.Rc8 Rd3 29.Nd2 Nd2 30.Rc7 Kf6 31.Rb7+–; 27...Ned2 28.Nd2 Nd2 29.Rc8 Rd3 30.Rc7 Kg6 31.Rb2+–) 28.Rac2 Rb3 (28...Rd2 29.Nd2 Ned2 30.Rd2+–; 28...Ned2?! 29.Nd2 Nd6 30.Rc8 Nc8 31.Rc8 Rd2 32.Rc7 Ke6 33.Rg7=) 29.Kh2 Rb1! (29...Ned2 30.Nd2 Nd2 31.Rc8+=; 29...Ncd2?! 30.Rc8 Nf3 31.Kh3–+) 30.Rb1 Ned2 31.Rb7 Kg6 32.Rd7? (better is 32.Ra7 Nf1 33.Kh3 Nfe3 34.Re2–/+) 32...Nf1–+ 33.Kh3 Nfe3 34.Rc1 a5 35.Rd4 (35.Rb1 Ne5 36.Rb6 Kh5 37.Rg7 h6–+) 35...Kf6 36.Rf4 Nb6 (36...Ke5!? 37.Re1 Kd5 38.Rb1–+) 37.Rc8 Nc8 38.Rd4 Ke6 39.Kh2? (39.Rd8 Ne7 40.Ra8–+) 39...Nb6 40.Kg1 Ned5 41.g4 Ke5 (41...Ke5 42.Rd2 fg4–+) 0–1. Bouma – Smits, email CTON, 1996.

2.d4 d5

(--> 1.b4 d5 2.d4 c6).

3.e3 Nd7 4.Nf3 g6 5.Bb2 Bg7 6.Be2 Ngf6 7.Nbd2 0–0 8.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.d4 d5 7.Nbd2 Nbd7 8.Be2).

3.Nf3 Nf6 (--> 1.b4 Nf6 2.d4 d5 3.Nf3 c6).

2.d4 e5

3.de5 Bb4 4.c3 Bc5 5.e4 (5.Ba3 Na6 6.Bc5 Nc5=) 5...Qh4 (5...d5 6.ed5 Qd5 7.Qd5 cd5 8.Bb5 Bd7 9.Bd3=) 6.Qc2 Qe7 (6...d5 7.ed5 cd5 8.Bb5 Bd7 9.Bd3=+) 7.Nf3 d5 8.ed5 cd5 9.Bg5 Qc7 10.Nbd2 (10.Bb5 Bd7 11.Bd3 Nc6=) 10...Nc6 11.Bb5 (11.Qb3 Nge7 12.Be7 Ne7 13.Bb5 Kf8=) 11...Bd7 (11...Qb6 12.Bc6 Qc6 13.0–0=) 12.Bd3 (12.Qd3!?=) 12...Ne5 =+.

3.de5+= Bb4 4.c3 Be7 5.Nf3 (5.Bf4!?+=) 5...d5= 6.Bb2 (6.ed6 Bd6 7.e4 Qe7=) 6...Qb6 7.Qc2 Bg4 8.Nbd2 Nd7 9.c4 Bc5 10.e3 Bf3 (10...Bf5 11.Qf5 Qb2 12.Rb1 Qa2 13.Rb7+=) 11.Nf3 Qa5 (11...Bb4 12.Bc3=) 12.Nd2 (12.Bc3 Bb4 13.Bb4 Qb4 14.Qd2 Qd2 15.Kd2 dc4 16.Bc4=) 12...dc4 (12...Ne7!?=) 13.Bc4 (13.e6 fe6 14.Bg7 Be3 15.fe3 Rd8 16.Bh8 Ne5+–) 13...Nb6 +=.

2.d4 e6

3.a3 d5 4.Bb2 Nd7 5.Nf3 Nb6 6.e3 Nf6 7.Nbd2 Na4 8.Rb1 b5 9.Bd3 Bd6 10.0–0 h6 (10...a5 11.Ne5 Bb7 12.Ba1=) 11.Ba1 a5 12.c4 (12.e4 de4 13.Ne4 0–0+=) 12...Ba6 (12...dc4!? 13.Nc4 bc4 14.Qa4 Bd7 15.Bc4 ab4+=) 13.cb5 (13.c5 Bc7+=) 13...cb5 (13...Bb5 14.Bb5 cb5 15.Qe2=) 14.ba5 Rb8 (14...Qa5 15.Rb3=) 15.Nb3 (15.Ne5!? Rb7 16.Qc2+/–) 15...Ba3+= 16.Ne5 Qd6 17.Qe2 0–0 18.h3 Nd7 19.Rfd1 f6 20.Nd7 Qd7 21.Qg4 f5 22.Qe2 Bb4 23.Rdc1 Ba3 24.Rc2 Rfc8 25.Nc5 Bc5 26.dc5 Nc5 27.Bd4 Nd3–/+ 28.Qd3 Rc2 29.Qc2 Rc8 30.Qb2 Rc4 31.Rd1 Qc7 32.Bb6 Qd6 33.Qb1 Qb4 34.Qa1 Qc3 35.Bd4 Qa1 36.Ra1 h5 37.h4 g6 38.g3 Kf8 39.Kg2 Ke7 40.Kf3 Kd6 41.Bb6 e5 42.Rd1 Kc6 43.Rd2 b4 44.Ba7 b3–+ 45.Bb8?? Rc2 46.Rc2 bc2 47.Be5 c1Q 48.Bd4 Qd1 49.Kf4–+ Kd6 50.Be5 Kd7 51.Kg5 Qg4 52.Kf6 Bc8 53.Bf4 Kc6 54.Ke5 Bb7 55.Kf6 Kb5 56.f3 Qf3 57.Kg6 Qg4 (57...Qg4 58.Kf6 Ka5–+) 0–1. Karnek,Jan (1830) – Granec,Jan (1640), SVK–ch region, 2005.

3.c4 Bb4 4.Bd2 Na6 (4...Be7 5.e4–/+) 5.a3 Qa5 (5...Bd2 6.Nd2 d6 7.Ngf3=+) 6.Bb4 (6.Nf3 d6=+) 6...Nb4=+ 7.e4?? (better is 7.Nd2 Na6 8.c5=+) 7...Nc2–+ 8.Ke2 Na1 9.g4 (9.e5 d6 10.f4 de5 11.de5 Nh6–+) 9...Nf6 (9...d5 10.Qd3–+) 10.Nf3 (10.e5 Ng4 11.Nd2 Qc3–+) 10...Ne4 11.h4 (11.Qc1 Qb6–+) 11...Nc3 12.Nc3 Qc3 13.Nd2 Qd4 14.Bg2 Qg4 15.Ke1 Qg2 16.Rf1 Qh3 17.Qa1 f6 18.Kd1 d5 19.cd5 ed5 20.Re1 Kf7 21.Re3 Qh4 22.Re2 Bg4 23.Qd4 Be2 24.Ke2 Qd4 (25.Nf3 Rhe8 26.Kf1 Qc4 27.Kg2 Qg4 28.Kh1 Qf3 29.Kh2 Re1 30.a4 Rh1) 0–1. lucky bucky – coolerdude, ChessWorld.net, 2004.

3.Bd2 Nf6 4.Nc3 (4.Nf3!?=) 4...Bb4–/+ 5.Rb1 Bc3 (5...Qa5 6.Ne4 Ne4 7.Bb4 Qa2 8.f3=+) 6.Bc3 d5 7.Nf3 b6 8.e3 0–0 9.g3 (9.Bb4 c5 10.dc5 Nc6=+) 9...Nbd7 10.Bd3 Bb7 11.0–0 Ne4 12.Be4 Black gets in control (12.Bb4 c5 13.dc5 bc5–/+) 12...de4 13.Ne5 (13.Nd2 Ba6 14.Bb4 c5 (14...Bf1?! 15.Bf8 Bb5 16.Bd6–/+) 15.dc5 Bf1 16.cb6 Bh3 17.Bf8 Qf8–/+ (17...Kf8?! 18.b7 Rb8 19.Ne4–/+)) 13...f6 (13...Ba6 14.Nc6 Qc7 15.Ne7 Kh8 16.Rb3–+) 14.Nc4 (14.Nd7 Qd7 15.f3 ef3 16.Qf3 c5–/+) 14...Ba6 15.Rb4? (better is 15.Qe2–/+) 15...c5–+ 16.dc5 bc5 (16...Nc5?! 17.Bd4–+) 17.Rb3 (17.Ra4 Bb5 18.Ba5–+) 17...Bc4 18.Rb7 Rf7 19.Rd7 Rd7 20.Qc1 Bf1 21.Qf1 Rd1 22.Be1 Ra1 23.Kg2 Qd1 24.Qc4 Qf3 25.Kh3 Qf5 26.g4 Qf3 27.Kh4 g5 28.Kh5 Qh3 0–1. xzara – Whiterose, ChessWorld.net, 2005.

2.Nf3 Na6

3.a3 d5 4.Bb2 =.

3.a3 e6 4.d4 Qf6 (4...Nf6!?+=) 5.e4+/– Nh6 (5...d5 6.e5 Qd8 7.Bd3+/–) 6.Nc3 (6.Bd3 d6+–) 6...b5 (6...Nc7 7.e5 Qg6 8.Bd3+–) 7.Bd3 (better is 7.e5 Qd8 8.Bh6 gh6 9.Ne4+–) 7...g6 (7...Nc7 8.e5 Qd8 9.Bh6 gh6 10.Ne4+–) 8.e5 (better is 8.Bg5 Qg7 9.e5+–) 8...Qf4?? (8...Qd8+–) 9.Bf4 Nb4 10.ab4 Ba6 11.Ra6 Bg7 12.Ne4 Nf5 13.g4 Nd4 14.Nd6 Ke7 15.Nd4 Kf8 16.Qf3 h6 17.Be3 f5 18.ef6 Bf6 (18...Re8 19.fg7 Ke7 20.Qf7 Kd8 21.Rc6 dc6 22.Nc6) 19.Qf6 Kg8 20.Qf7# 1–0. Trkn – guest5180, ICC, 2004.

3.a3 Nh6 4.e3 (4.e4 Nc7+/–) 4...Nc7+= 5.Bb2 (5.Be2 d6+=) 5...f6 (5...d6 6.Be2+=) 6.Bc4 (6.d4 d5+=) 6...d5= 7.Bb3 (7.Be2 e5=) 7...e5 8.Nh4 (8.0–0!?=) 8...Bg4 9.f3 Be6 10.0–0 (10…g5 11.f4 gh4 12.fe5–/+; 10.f4!? Bg4 11.Qc1–/+). Wartig,Wolfgang – Marder,Simon, corr 3GMM–42, 1995.

2.Nf3 b5

3.a4 a5 4.ab5 cb5 5.e4 (5.Bb2 Bb7=) 5...Qb6 (better is 5...Bb7!?=) 6.Nc3 Bb7 7.Rb1 (< 7.Bb5 ab4 8.Rb1 bc3 9.Bd7 Nd7 10.Rb6 Nb6–/+) 7...Bc6 8.ba5 Ra5 9.d4 e6 10.d5 ed5 11.ed5 Qc5? (better is 11...Ba8 12.Qe2 Be7 13.Nb5 Bd5+–) 12.dc6 dc6 13.Ne4 Qe7 14.Qe2 Nd7 (14...Nf6 15.Nd6 Kd7 16.Nf7 Qe2 17.Be2 Rg8+–) 15.Nd6 Kd8 16.Nb7 Kc7 17.Na5 Qc5 (17...Qe2 18.Be2 Bc5 19.c4+–) 18.Be3 Qc3 19.Bd2 Qa3 (19...Qf6 20.c4 b4 21.Nb3+–) 20.Nc6! Ne7 (20...Kc6 Decoy theme: c6 21.Qb5) 21.Ba5 Kc6 22.Qb5 Kd6 23.Rd1 Ke6 (23...Qd3 24.Rd3 Nd5 25.Qd5 Ke7 26.Bd8 Kd8 27.Qd7) 24.Bc4 Kf6 (24...Nd5 25.Qd5 Kf6 26.Qf7) 25.Qg5 1–0. marekt – coolerdude, ChessWorld.net, 2004.

3.a4 Ba6 4.ab5 Bb5 5.Na3 e6 6.Nb5 cb5 7.e4 Bb4 8.Bb5 Qb6 9.Ba4 Qa5? (better is 9...Nf6 10.e5 Ne4+/–) 10.c3+– Bd6 (10...Bc3 11.dc3 Qc3 12.Bd2 Qc4+–) 11.Bd7!! Nd7 (11...Kd7 12.Ra5) 12.Ra5 Nc5 (12...Bc7 13.Rb5+–) 13.d4 Nb7 (13...Nd7 14.Qa4 Ne7 15.Ra6+–) 14.Qa4 Ke7 15.Ra7 Ra7 16.Qa7 Kd7 17.Qb7 Bc7 18.Ne5 Kd6 (18...Kd8 19.Nf7 Kd7 20.Ne5 Kd8 21.Qa8 Ke7 22.Ba3 Kf6 23.Qf8 Kg5 24.Qg7 Kh5 25.Qg4 Kh6 26.Bc1#) 19.Ba3# 1–0. Trkn – guest6236, ICC, 2004.

3.a4 Qb6 4.ab5 cb5 5.e4 Bb7 6.d3 Nf6 7.Be3 Qc7 8.Na3 (8.Ba7 e5 9.Bb8 Bb4 10.Nfd2 Rb8–/+) 8...e6 (better is 8...a6!? 9.c4 e6=) 9.Nb5+/– Qc6 10.Na7 Qc3 (better is 10...Bb4!? 11.Nd2 Qc7+/–) 11.Bd2+– Qc7 12.c4 Nc6 13.Nb5 Qb8 14.Ra8 Qa8?? (14...Ba8 15.Qa4 Bb7+–) 15.Nc7 (15...Ke7 16.Na8 Ba8 17.Qa1+–) 1–0. miehnekort – jroxasb, Yahoo, 2005.

2.Nf3 d6

3.Bb2 e5 (--> 1.b4 e5 2.Bb2 d6 3.Nf3 c6).

3.c4 a5 4.b5 e5 5.Nc3 Nf6 6.e4 cb5 7.cb5 d5 8.ed5 e4 (8...Bd6 9.d4 Bb4 10.Bd2+=) 9.Ng5 Bf5 10.f3 ef3 11.Qf3 (< 11.gf3 Be7=+) 11...Bg6 12.Bb2 Nbd7 13.Be2 Bc5 14.Nce4 Ne4 15.Ne4 Qh4 16.Nf2 0–0 17.0–0 Rfe8 18.g3 Qb4 19.Bc3 Qa3 20.d6 Rab8 21.h4 f6 (21...Bd6 22.h5 Bc2 23.h6=) 22.h5 Bf7 23.h6 g6 24.Bd1 Bb6 (24...Ba2 25.Bc2 (25.Bf6?! Qf3 26.Bf3 Bc4+=) 25...Bd6 26.Bb1+–; 24...Bd6 25.Ne4 Bd5 26.Nf6 Nf6 27.Qf6 Bc5 28.Kh2 Qc3 29.Qc3 Bg1 30.Kg1 Re5 31.Qe5 Ba2 32.Qb8#) 25.Kg2 f5 (25...Ba2 26.Bc2 (26.Bf6?! Qd6 27.Ra2 Nf6=) 26...f5 27.Bb1 Qd6 28.Ba2 (28.Ra2?! Ne5 29.Be5 Re5+–) 28...Kf8 29.Ne4+–; 25...Qd6?! 26.Ne4 Qd5 27.d3=+) 26.Qd3 Qc5 27.Rc1 (27.Bb3 Bb3 28.ab3 Ne5 29.Be5 Qe5+=) 27...Re6 (27...Ne5 28.Be5 Qc1+=) 28.Ba5?? (28.Bb2 Qd6 29.a3 Rbe8=+) 28...Qc1 29.Bb6 Qb2 30.Bc7 Ra8 31.Qc3 Qc3 32.dc3 Re5 (< 32...Ra2 33.Bb3 Rb2 34.Be6 Be6 35.Re1+/–) 33.a4 Bc4 34.Rg1 Re3 35.a5 Bb5 36.Bf3 Bc6 37.Bc6 bc6 38.c4 Re2 39.Ra1 Kf7 40.Kf1 Re3 (40...Rc2 41.Re1 Re8 42.a6–+) 41.Kg2 g5 42.Rf1 Re2 43.Ra1 Rc2 44.Kf1 Re8 45.a6 Ree2 46.Nd3 Rh2 47.Kg1 Rcg2 48.Kf1 Rg3 49.Ra3 Rgg2 50.Ba5?? (50.a7 Rd2 51.Kg1=) 50...Ra2 51.Ra2 Ra2 52.Bd8 g4 53.c5 Ra6 (54.Kf2 Ra3–+) 0–1. Winiger,Albert (2150) – Riemer,Wolfgang (2310), RSX8D – priv – XMAS, 2004.

3.c4 Nf6 4.d4 Nbd7 5.Nc3 e5 6.e3 e4 7.Nd2 d5 8.Qb3 Nb6 9.b5 c5 10.dc5 Bf5?? (better is 10...Bc5 11.Nd5 Be6 12.Nf6 Qf6+=) 11.cb6+– d4 12.ed4 Qd4 13.Bb2 Qb6 14.Nd5 Nd5 15.cd5 f6 16.Nc4 Qc7 17.b6 ab6 18.Nb6 Rb8 19.Bb5 (19...Kd8 20.Nc4+–) 1–0. Fiedler,Peter – Koslowski,Volker (1985), T0076 DESC, 2003.

3.d4 g6 4.e4+= Bg7 5.Nbd2 Qc7 (5...e5 6.Bb2+=) 6.Bd3 Nd7 7.0–0 Ngf6 8.Re1 (8.c3 0–0+=) 8...0–0 9.a3 (9.c4 c5+=) 9...a5 10.Bb2 b5 11.c4 bc4 12.Nc4 ab4 13.ab4 Ra1 14.Qa1 Nb6 (14...d5 15.Qa5 Qb7 16.e5=) 15.Qa5+= Nfd7 16.Ra1 Qb7 (16...d5 17.Nb6 Nb6 18.Qc5+=) 17.Nb6+/– Qb6 (17...Nb6 18.Qa7+/–) 18.Qb6 Nb6 19.Ra7 Re8 (19...Rd8 20.Re7 c5 21.b5+–) 20.Rc7 Na4 (20...Bd7!?+/–) 21.Ba1+– c5? (better is 21...Bg4 22.Rc6 Ra8+–) 22.Bb5 (22.bc5?! Nc5 23.Bb5 Rd8+/–) 22...Rd8 23.Ba4 cb4 (23...Bg4 24.Bb2+–) 24.Re7 Be6 25.Ra7 Rc8 26.Bb2 d5 27.e5 h5 (27...Bh6 28.Kf1+–) 28.Kf1 (28.Ng5 Rc4+–) 28...Bh6 29.Rb7 Bf8 30.Ng5 Ra8 31.Ne6 Ra4 (31...fe6 32.Bd7 Ra6 33.Rc7+–) 32.Nf8 (32.Nc5 Ra5+–) 32...Kf8 33.Rb4! Ra2 (33...Rb4 34.Ba3) 34.Ke2 (34.Rb5 Ke8+–) 34...Ke7 35.Kd3 (35.Rb7 Ke6+–) 35...Ke6 (35...h4 36.Rb7 Ke6 37.h3+–) 36.Rb6 Ke7 37.Kc3 h4 (37...Ra7 38.Bc1 Rc7 39.Kb2+–) 38.Kb3 Ra5 (38...Ra7 39.Ba3 Ke8 40.Rb5+–) 39.Ba3 Kd7 (39...Kd8 40.Rb7+–) 40.Rb7 Kc6 (40...Ke8 41.Re7 Kd8 42.Rf7 Rb5 43.Kc3+–) 41.Rf7 Rb5 (41...g5 42.Be7+–) 42.Ka4 Rb1 43.Rf6 Kb7 (43...Kc7 44.Rg6 Rd1 45.Rg4+–) 44.Rg6 (better is 44.e6 Rd1 45.e7 Rd4 46.Kb5 Re4+–) 44...Rf1 (44...Kc7 45.Rg7 Kc6 46.Rg4+–) 45.Kb5 Rb1 46.Kc5 Rf1 (46...Rb3 47.Bb4 Rb2+–) 47.Rg7 Ka6 48.e6 (48.Kc6 Rf2 49.Bc5 Rf6 50.ef6 Ka5 51.Ra7#) 48...Rf2+– 49.e7 Re2 50.Kd5 Kb5 51.Rg4 h3 52.Re4 hg2 (52...Rf2 53.e8Q Kb6 54.Re6 Kc7 55.Rc6 Kb7 56.Qd7 Kb8 57.Rc8#) 53.e8Q Ka5 54.Qa8 (54...Kb6 55.Bc5 Kb5 56.Re2 g1Q 57.Rb2#) 1–0. b4_player (2220) – arfil019 (1805), GameColony.com, 2003.

2.Nf3 e5

3.a3 e4 4.Nd4 d5 5.e3 Nf6 6.h3 (6.Bb2 Bd6=+) 6...a5 7.ba5 Bd7 (7...Ra5 8.Bb2=+) 8.c4 (8.Nb3 Bd6=+) 8...c5 9.Nb5 (9.Nb3 Be6 10.Qc2 Nc6=+) 9...Bb5 10.cb5 Qa5 (10...c4 11.Bb2=+) 11.Be2 (11.Bb2 Nbd7=+) 11...Nbd7 (11...c4 12.a4–/+) 12.0–0 (12.Bb2 c4 13.Nc3 Bd6=+) 12...c4 13.a4 Nc5 (13...Bd6 14.Bb2=+) 14.Nc3 (14.Bb2 Be7=+ (< 14...Na4 15.Bf6 gf6 16.Qc2+=)) 14...Bd6 15.Bb2 (15.Ba3 0–0=+) 15...0–0–/+ 16.f4 (16.f3 Nd3 17.Bd3 ed3–/+ (< 17...cd3 18.fe4 Ne4 19.Ne4 de4 20.Qg4+–)) 16...ef3 (16...Rfc8 17.Bg4 Rd8 18.Nb1–/+) 17.Rf3 (better is 17.Bf3 Be5 18.Ba3=+) 17...Ne6?? (better is 17...Nce4=+) 18.Rf6+/– gf6 19.Nd5 Be5 20.Be5 (20.Nf6 Bf6 21.Bf6 Rfc8+–) 20...fe5 21.Bc4 Qd8 22.Qg4 Qg5 23.Nf6 Kh8 24.Qf3 Rac8 25.d3 Qg6 26.Nd7+– Ng5 27.Qg3 e4 28.Nf8 Rf8 29.Rd1 Rg8 30.Qe5 f6 31.Qb2 Nh3 32.Kh2?? Qg3–+ 33.Kh1 Nf2 (34.Qf2 Qf2 35.Bg8 Qc2–+) 0–1. chessotka – juanpacio (1705), internet, 2006.

3.Ne5 Bb4 4.Bb2 Nf6 5.Nd3 Ba5 6.e3 d6 7.Qf3 0–0 8.Bf6 Qf6 9.Qf6 gf6 10.Nf4 (10…d5 11.Kd1+=) +=. b4_player (2180) – albertouno (1640), GameColony.com, 2002.

3.Ne5 Bb4 4.c3 Be7 5.d4 Nf6 6.Qb3 d5 7.c4 dc4 8.Qc4 Be6 9.Qd3 Nbd7 10.Nd2 Ne5 11.de5 Ng4 12.Qc3 Ne5! 13.Rb1 (13.Qe5 Decoy to e5 13...Bf6) 13...Qb8 14.Ba3 Ba2 15.Rd1 Ba3 16.Qa3 Be6 17.e4 (17.f4 Ng4 18.Ne4 Qf4=+) 17...Qc7 18.f4 Ng4 19.h3 Nf6 20.e5 Nh5 21.Qf3 g6 22.Bc4 Bc4 23.Nc4 0–0 24.0–0 White prepares f5 24...Rfd8 25.Nd6 White prepares the advance f5 25...Qb6 (25...Nf6!=) 26.Kh1 Rab8 27.f5 Rf8 28.g3 (better is 28.f6!? Qc5 29.Rfe1+/–) 28...Qb2 29.Rfe1 Qa2 (29...Ng7 30.Re2 Qb4 31.Red2=) 30.Re4 (better is 30.f6!?+/–) 30...Qc2 31.Rf1 Rfd8 (31...b5 32.Rf2 Qc5 33.f6=+) 32.fg6 fg6 33.Rf2 Qb1 34.Kg2 Rf8 35.Qe3 (35.Nf7 Qc1 36.g4+–) 35...Rf2–/+ 36.Qf2 Rf8 37.Qe2 Kg7?? (37...b5!?–/+) 38.e6 Qb3–/+ 39.Qe1 Rf3 Will g3 fall? 40.e7 Rg3 41.Kf1 Qf3 42.Qf2 Qh1 43.Ke2 Rg2 44.e8Q Ng3 45.Ke3 Qc1 46.Kf3. pierre – fatontaraku, Yahoo, 2005.

2.g4 d5

3.Nc3 Bg4 4.h3 Bh5 5.Nf3 Bf3 6.ef3 e6 7.h4? (better is 7.b5–+) 7...Bb4 8.a3 Bd6 (9.Rb1 b5–+; 8...Bc3 9.dc3 Qf6 10.Bd2–+) 0–1. guest92 – sicilian, ICC, 1995.

3.h3 h5 4.gh5 e5 5.a3 a5 6.Bb2 ab4 7.Be5 ba3 8.Na3 Nd7 9.Nb1 Ra1 10.Ba1 Ngf6 11.Nf3 Bd6 12.Rg1 Kf8 13.Bg2 (13.e3 Rh5 14.Nd4 Rh7=+) 13...Rh5=+ 14.e3 Nb6 Attacking the isolated pawn on h3 15.Rh1 Qe7 16.d3 c5 17.d4 c4 18.Ne5 Be6 (< 18...Be5 19.de5 Re5 20.Be5 Qe5 21.Qd2+=) 19.Nd2 Kg8 20.Ng4 Nfd7 21.e4 de4 The passed pawn on d4 will become decisive later 22.Ne3 Qh4 The pressure on the isolated pawn grows 23.Be4 Bf4 24.Qf3 Be3 25.Qe3 Nd5 26.Qa3 N7b6 (26...b5 27.Bf3 Rf5 28.Ne4–+) 27.Rg1= Qh3 28.Qd6 Qh4 29.Bf3 Rf5 30.Rg4 Qf6 31.Ne4 Qe7 32.Qe7 Ne7 33.d5 Bd5 (< 33...Rf3 34.de6 fe6 35.Rg7 Kf8 36.Ng5+=) 34.Rg7 Kf8 35.Bg2 Rf4 36.Nd6 Nf5 37.Nf5 Bg2 38.Rg5 Be4 39.Ne3 Nd7 40.Nc4 f6 41.Rh5 Bc2 42.Nd6 b6 43.Rb5 Ba4 44.Rb1 Bc6 45.Nc8 Exerts pressure on the isolated pawn 45...Be4 (45...b5 46.Na7 Bf3 47.Nb5 Re4 48.Kd2 Re2 49.Kd3 Nc5 50.Kd4 Ne6 51.Kc4 Rf2 52.Nd4=+) 46.Rd1 Bf5 47.Rd6 b5 (48.Nb6 Nc5 49.Rf6 Ke8=) =. wesolyPolak (1775) – ridha (1635), GameColony.com, 2002.

2.Nh3 d5

3.Ba3 e5 4.Ng1 Bd6 5.c3 Ne7 6.Qb3 Be6 7.Nf3 0–0 8.g3 Bg4 9.Qc2 Bf3 10.ef3 Nd7 11.Qb2 a5 12.Bg2 ab4 13.Bb4 c5 14.Ba3 Nb6 15.Qb3 c4 16.Qb2 Qd7 17.Bd6 Qd6 18.Qc1 Nd7 19.Ke2? (19.0–0–+) 19...Nc5 20.Qb2 Nd3 21.Qc2 Qc5 22.Rf1 Ng6 23.Bh1 Qb5 24.a3 Qd7 25.h4 Qa4 (25...Rfe8 26.g4 e4–+) 26.Qa4 Ra4 27.Ke3 Re8 28.Rg1 Nf8 29.Ke2 Nd7 30.Kf1 Nf6 31.Ra2 Rd8 32.Kg2 Rf8 33.Rc2 Re8 34.Rf1 Rc8 35.Ra2 Rca8 36.g4 Nf4 37.Kg3 R8a5 38.g5 Ne8 39.Rb2 Nd6 40.Rb6 Ra6 41.Rb4 R4a5 42.Rb2 Nd3 43.Rc2 Nb5 44.Kg4 Na3 45.Na3 Ra3 46.Kg3 f5 47.gf6 Rf6 48.Bg2 Nf4 49.Bh1 (49.Bh3–+) 49...Rg6 50.Kh2 Rh6 51.Re1 (51.Ra2 Ra2 52.Bg2–+) 51...Rh4 (51...Raa6 52.Re5 Rag6 53.h5 Nh5 54.Re8 Kf7 55.Rf8 Kf8 56.Bg2 Nf4 57.Kg1 Rg2 58.Kf1 Rh1) 52.Kg3–+ Rh5 53.Re5 Re5 (53...Rh1?! 54.Kf4 d4 55.Rb5–/+) 54.Kf4 Re2 55.Kg3 Ra1 56.Bg2 Rd1 57.Bh3 g6 (better is 57...Red2!? 58.Rd2 Rd2 59.Bf5–+) 58.Rb2 Rdd2 59.Rb7 h5 60.Rd7 g5 61.Rd8 Kf7 62.Rd7 Re7 63.Rd6 Re1 64.Rd7 Ke8 65.Rd6 Rg1 66.Bg2 (66.Kh2 Rc1 67.Re6 Kd8–+) 66...h4 67.Kh2 Rc1 68.Rg6 Rf2 69.Rg5 Rc3 70.Rg8 (70.Kh3 Rcc2 71.Rd5 Rg2 72.Kh4 Rc1 73.Re5 Kf7–+) 70...Kf7 71.Rg4 (71.Rd8 Rcc2 72.Kh3 Ke6 73.Re8 Kd7–+) 71...Rcc2 72.Rf4 Ke7 73.Kh3 Rg2 74.Rf5 Rh2 75.Kg4 Ke6 76.Rf8 Rcg2 77.Kh5 c3 78.Re8 Kf6 79.Re3 c2 80.Rc3 Rg5 81.Kh6 Rg1 (81...Rhg2 82.Rc6 Kf5 83.Rc7 Rg6 84.Kh7 c1Q 85.Rf7 Ke6 86.Rf6 Kf6 87.f4 Qc7 88.Kh8 Rh6) 82.Rc6 Kf5 83.Kh7 h3 84.Rc8 d4 (84...Rhg2 85.Rf8 Ke6 86.Re8 Kf7 87.Rb8 h2 88.Rb7 Ke6 89.Rb6 Kf5 90.Ra6 h1Q 91.Rh6 Rg7 92.Kh8 Qh6) 85.Rf8 Ke6 86.Re8 Kd7 87.Rf8 c1Q 88.f4 Qc2 (88...Qe1 89.Rf7 Ke8 90.Rf6 Qe7 91.Kh6 Qf6 92.Kh5 Qh8) 89.f5 Qe4 90.Rf7 Ke8 91.Rf6 (91.Rg7 Rg7 92.Kg7 Rg2 93.Kf6 Qe7) 91...Qe7 92.Kh6 Qf6 93.Kh5 Qg5# 0–1. Radon (2250) – Hossa (2265), ICS Rated blitz match, 1998.

3.Ba3 e5 4.Ng1 Bd6 5.c3 Ne7 6.Qb3 Be6 7.g3 d4 8.Qa4 a5 9.e3 0–0 10.cd4 b5 11.Qc2 ab4 12.Bb2 Ra2 13.de5 b3 14.Qc3 Bc7 15.Bg2 Nd7 16.Ra2 ba2 17.Na3 Ne5 18.Ke2 (18.Bf1 Ba5 19.Qc1 Qd5 20.Be5 Qh1–+) 18...Bd6 19.Nc2 Bc4 20.Kd1 Nd5 21.Bd5 Bd5 22.f3 c5 23.e4 (23.Ne1 b4 24.Qc1 Qa5–+) 23...b4 24.Qe3 Nc4 25.Qb3 Qg5 26.Bc1 Be6 27.Qd3 (27.d4 Ne3! 28.Qe3 Qe3 29.Be3–+) 27...Ra8 28.f4 Qg4 29.Ke1 a1R 30.Na1 Ra1 31.Ne2 Bc7 32.Kf2 Na3 (32...Nb2! 33.Qf3–+) 33.Qe3 Bb6 34.f5 Nc2 35.Qf3 c4 36.Kg2 Qf3 37.Kf3 Bd7 38.Kg2 (38.Nf4 b3 39.Kg2 Bd4–+) 38...Ra2 (38...Bc6 39.Kf3 b3 40.Nc3–+) 39.Kh3 (39.g4 b3–+) 39...b3 (better is 39...Bc6 40.Rf1 Be4 41.Nc3 bc3 42.dc3 Bg2 43.Kg2 Ne3 44.Kf3 Nf1 45.Bf4–+) 40.Nf4 b2 41.Bb2 Rb2 42.Rd1 f6 43.Nd5 Bd4 44.Ne7 Kf7 45.Nd5 Be5 46.d3 (46.Kg2 Nd4–+) 46...c3 47.Rh1 Na3 48.Ne3 Bb5 49.d4 (49.Ra1 c2 50.Nc2 Nc2 51.Ra7 Ke8 52.Ra8 Kd7 53.Ra7 Kc6–+) 49...Bd4 50.Rc1 Be3 51.Rc3 Nc4 (51...Bf1 52.Kg4 h5 53.Kf3 Bg5 54.Rc7 Kg8 55.Rc8 Kh7 56.Rh8 Kh8 57.g4 Bg2 58.Kg3 h4) 52.g4 Bf4 53.Kh4 (53.Rg3 Ne5 54.Rg2 Rb3 55.Rg3 Bf1 56.Kh4 Bg5 57.Kh5 g6 58.fg6 hg6) 53...Rh2 (53...g5 54.fg6 hg6 55.Rc2 Rc2 56.g5 fg5 57.Kg4 Ne5 58.Kh3 Rh2) 54.Rh3 Rh3 55.Kh3 Ne3 (56.Kh4 Bf1 57.e5 Ng2 58.Kh3 Ne1 59.Kh4 Nf3 60.Kh5 g6 61.fg6 hg6#) 0–1. Radon (2165) – Hossa (2185), ICS Rated blitz match, 1998.

2.a3 a5

3.ba5 Qa5 4.Bb2 e5 5.e3 Qc7 (5...Nf6 6.Nf3 d6 7.Nc3+=) 6.c4 (6.Nf3 e4 7.Nd4 Nf6=) 6...Nf6 7.d3 (7.Nf3!? d6 8.Qc2=) 7...d5 8.Nd2 Be6 9.Ngf3 Nbd7 10.Be2 dc4 11.dc4 (11.Nc4 Bc4 12.dc4 Bd6+=) 11...h6–/+ 12.0–0 Bd6 13.e4 0–0 14.Qc2 Nc5 15.Rfe1 (15.a4 Bg4–/+) 15...Ra7 (15...Na4 16.Bc1–/+) 16.Bd3 (16.Rad1 Ncd7–/+) 16...Rfa8 17.Nb3 Nb3 (17...Nd3 18.Qd3 Nd7 19.c5–/+) 18.Qb3 Nd7 19.Qc3 (19.Red1 Ra4–/+) 19...f6 20.Reb1 (20.Red1 Bc5–/+) 20...Nc5–+ 21.Bc2 Qe7 (21...Na4 22.Ba4 Ra4 23.Nd2–+) 22.Bc1 (22.Nh4 Na4 23.Ba4 Ra4–/+) 22...Nd7 (22...Na4 23.Qe1–/+) 23.a4 Nc5 24.Be3 Na4 25.Ra4 Ra4 26.Ba4 Ra4 27.c5 Bb8 28.Nd2 Ba7 (28...Kh7 29.h3–/+) 29.h3 (29.Qc2 Ra6–/+) 29...Qc7 (29...Kh7 30.Qc2 Ra5 31.Qc3–/+) 30.Qb2 Ra5 31.Qb7 Qb7 32.Rb7 Bc5 33.Rc7? (33.Nb3 Bb3 34.Rb3–/+) 33...Ra1–+ 34.Kh2 Be3 35.fe3 Rc1 36.Kg3 Rc2 37.Nf3 g5 (37...Bf7 38.Nh4 g6 39.Kf3–+) 38.Re7 (38.Ne1 Rc3 39.Kf3–+) 38...Bf7 39.Nh2 (39.Rd7 c5–+) 39...h5 40.Nf3 Kf8 41.Rc7 (41.Ra7 Bg6 42.Ra4 Re2–+) 41...Bg6 42.Ne1 (42.Rd7 h4 43.Kh2 Be4–+) 42...Rc4 (better is 42...Re2!? 43.Rc6 h4 44.Kf3 Bh5 45.g4 hg3 46.Kg3 Re1 47.Rf6 Ke7 48.Rf5 Re3 49.Kf2 Re2 50.Kg3–+) 43.Nd3 Be4 44.Nf2 Bg6 45.e4 (45.Kf3 f5 46.g4 fg4 47.hg4 hg4 48.Kg3 Bf5–+) 45...Be4 46.Ne4 Re4 47.Rc6 Kg7 48.Rc7 (48.Kf3 Ra4–+) 48...Kg6 49.Kf3 Ra4 50.Rc6 (50.Rc3–+) 50...g4 51.hg4 hg4 (51...Rg4?! 52.Rc8–+) 52.Kg3 (52.Kf2 Ra2 53.Kf1 Ra3–+) 52...Kg5 53.Rc8 (53.Kh2 f5–+) 53...Ra3 54.Kh2 Kf4 (54...Kf4 55.Rc1 e4–+) 0–1. Pozanco Romasanta,Marc (1780) – Ortega Serra,Marc (2170), 4th Open De Llinars Group A, 2010.

3.ba5 d5 4.Nf3 =.

3.ba5 d6 4.d3 c5 5.Nf3 e5 6.g3 Nf6 7.Bd2 Nc6 8.e3 e4 9.Ng5 ed3 10.cd3 Na5 11.Nc3 Be7 12.Be2 0–0 13.0–0 Nd7 14.Nf3 Nf6 15.e4 Bh3 16.Re1 Nc6 17.Ng5 Bd7 18.Be3 Ne8 19.Nf3 Bf6 20.Qc1 Qa5 21.Bd2 Qa6 22.d4 c4 23.d5 Na5 24.Bd1 Bg4 25.Re3 Nc7 26.Rb1 Rfe8 27.Ba4 Re7 28.Nb5 Nd5? 29.ed5+– Re3 30.Be3 Rc8? 31.Na7 c3 32.Bb5 Qa7 33.Ba7 Bf3 34.Bd3 Ra8 35.Qf4 Be2 36.Be2 Ra7 37.Qd6 Ra8 38.Rb5 c2 39.Qc5 b6 40.Qc2 Rd8 41.Rb6 h6 42.Rb5 Ra8 43.Qc7 Re8 44.Ra5 Rf8 45.d6 Re8 46.Bc4 Rf8 47.Ra8! Ra8 48.Qf7 Kh7 49.Bd3 Kh8 50.Qg6 Kg8 51.Qh7 Kf7 52.Bc4 Ke8 53.Qe4 Kd7 54.Qe6 Kc6 55.Qd5 Kd7 56.Bb5 Kc8 57.Qa8# 1–0. GLChess207e – Mint161, computer chess game, 2000.

3.ba5 g6 4.Bb2 Nf6 5.Bf6 (5.e4 d6=) 5...ef6 6.Nf3 d5 7.e3 Bg7 (7...Qa5 8.Be2=+) 8.Ra2 (8.d4 Qa5 9.Nbd2 b5=) 8...Qa5=+ 9.Rb2 (9.Be2 b5=+) 9...Nd7 (9...b5 10.Be2=+) 10.Be2= f5 11.Rb4 Bf8 (11...b5 12.0–0=+) 12.Rb3 (12.Rb2 Bd6=+) 12...Nc5 13.Rb4 (13.Rb2 Bg7 14.c3 b5=+) 13...Ne4 14.Rb3 Nd6 (14...Bd6!?=+) 15.0–0= Nc4 Increasing the pressure on the isolated pawn on a3 16.Qc1 (16.Bc4 dc4 17.Rb2 Bg7=) 16...b5 (16...Bd6 17.Bc4 dc4 18.Rc3=) 17.d3 Na3 18.Qb2 Rg8 19.Qe5 Be6 20.Na3 Ba3 21.Ra1 b4 22.Nd4 (22.d4 Qb6+=) 22...Kd7 23.g4 (better is 23.c3 Qb6 24.Nc2+=) 23...c5 24.Ne6 (24.c3 Qc7 (< 24...fg4 25.Ne6 fe6 26.Bg4+=) 25.Qc7 Kc7 26.Nb5 Kc6 27.Na3 Ra3 (27...ba3?! 28.g5=) 28.Rba3 ba3 29.Ra3 fg4 30.Ra6 Kb5–/+) 24...fe6 25.Raa3 (better is 25.d4!?–/+) 25...ba3–+ 26.Rb7 Kc6 (26...Kc8!? 27.Re7 Ra6 28.Re6 a2 29.Ra6 Qa6–+) 27.Re7–/+ Do you see the mate threat? 27...Rgb8?? (better is 27...Qe1 28.Bf1 Rgd8=+ (28...fg4?? 29.Qe6 Kb5 30.Rb7 Ka5 31.Qb6 Ka4 32.Qb5)) 28.Qe6?? (28.c4 Rd8 29.Qe6 Rd6 30.cd5 Kb5 31.Qd6+–) 28...Kb5+= 29.Qd5 Qc3 30.Rb7 Ka5 31.d4 Rb7?? 32.Qb7+– Qb2 33.Qa8 Kb4 34.Qa6 a2 35.Qb5 Ka3 36.Qa5# 1–0. Wrobel,Dieter – Kalka,Arkadius Georg, Bochum Post op, 1992.

3.b5 Qb6 4.bc6 Nc6 5.Nc3 Nf6 6.Rb1 Qd8 7.d4 d5 8.e3 e5 9.de5 Ne5 10.Nge2 (10.Nf3 Nc6+=) 10...Bc5 (10...Nc4 11.Nf4 Na3 12.Ba3 (12.Ncd5?? Nb1 13.Bb2 Bb4 14.c3 Nd5 15.Nd5 Nc3 16.Bc3 Bc3 17.Nc3 Qd1 18.Kd1 Bd7–+) 12...Ba3 13.Bb5 Kf8 14.Ncd5=) 11.Nf4+= 0–0 12.Ncd5 Nd5 13.Qd5 Qe7 14.Rb5 Rd8?? (better is 14...Nd7 15.Bd3 Ba3 16.Bh7 Kh8+=) 15.Qc5+– (< 15.Rc5 Rd5 16.Rd5 Bd7=) 15...Qc5 16.Rc5 Nd7 17.Rd5 b6 18.Bb5 Bb7 (18...Ra7 19.Bb2 Rc7 20.Bd4+–) 19.Rd7 (19...Rd7 20.Bd7+–) 1–0. Taulien,Hans_Juergen – Tiedemann,Joern, remoteschach.de, 2003.

3.b5 e5 (--> 1.b4 e5 2.a3 a5 3.b5 c6).

3.b5 Nf6 4.e3 e5 5.Bb2 d6 6.c4 (6.d4 e4=) 6...Be7 7.Nc3 (7.d4 e4=) 7...0–0 8.d4 ed4 (8...Bf5 9.Nge2=+) 9.Qd4 Nbd7 10.Rd1 Nc5 11.Nf3 Bf5 12.Qf4 Bc2 13.Rc1 (13.Rd2 Bg6 14.Nd4 Nfe4 15.Ne4 Be4+=) 13...Bg6 14.Rd1 Qd7 (14...Re8 15.Be2=) 15.Ne4?? Now all is on d6 (better is 15.Ne5 Qc7 16.Ng6 fg6 17.Qg3+=) 0–1. Baer,Werner – Bonetti,Shane, TT–11 ETC, 2003.

3.c3 ab4 4.cb4 e6 5.Bb2 Nf6 6.e3 d5 7.Nf3 Bd6 8.Be2 0–0 9.0–0 Nbd7 10.d3 e5 11.Nbd2 Re8 12.Qc2 Nf8 13.h3 (13.d4 e4 14.Ne5 Ng6+=) 13...Bd7 (13...Ng6 14.Bc3+=) 14.e4 (14.Nb3 Ng6+=) 14...d4 (14...Ng6!?–/+) 15.Nc4+= Bc7 16.Bc1 (16.a4 Ng6+=) 16...h6 (16...b5!? 17.Ncd2 Ne6+=) 17.Nh2 (17.Bd2!?=) 17…Qc8 ½–½. Loskutova,Anastasia (1800) – Astakhov,Alexander (1745), Anna RUS, Gagarin Mem, 2014.

3.c3 d5 4.d4 Nf6 5.f3 (5.Bf4 Bf5=+) 5...e6 6.e3 (6.ba5!? Qa5 7.Bf4=+) 6...ab4–/+ 7.cb4 (7.Bd3 c5–/+) 7...Bb4!–+ 8.Nd2 Qb6 (better is 8...0–0–+) 9.Qb3?? (better is 9.Rb1 Bd2 10.Bd2–/+) 9...Bd2–+ 10.Bd2 Qb3 11.Ne2 Ra3 12.Ra3 Qa3 13.Nc3 Qa1 14.Ke2 0–0 15.g4 h6 16.Bg2 Qa6 17.Kf2 b5 (17...Re8 18.Rb1–+) 18.Rb1 Nbd7 19.h4 Nb6 20.Kg3 Nc4 21.Bc1 Qa5 22.Rb3 Qa1 23.Ne2 Qa2 0–1. dhub noire – SIRMO, ChessWorld.net, 2006.

3.c3 Nf6 4.Nf3 +=.

3.Bb2

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

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

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

3.b5 cb5

4.e3 b4 5.ab4 d5 6.Bb2 Nf6 7.Nf3 Nc6 8.b5 Na7 9.Bd3 e6 10.Ne5 Bd6 11.f4 0–0 12.Nc3 b6 13.0–0 Bb7 14.Na4 Nc8 15.Rf3 Bc5 (15...Ne4 16.Be4 de4 17.Rg3+=) 16.Rh3+= d4 17.Bh7 Nh7 18.Qh5 Be4 19.d3 Bf5 20.g4 Bg6 (20...Qf6 21.gf5 Qf5 22.Qf5 ef5 23.Nc5 bc5 24.ed4 cd4 25.Bd4+–) 21.Ng6 fg6 22.Qh7 Kf7 23.f5 (23.Nc5 bc5 24.ed4 Qf6+–) 23...Qg5 (23...gf5 24.gf5 Qf6 25.fe6 Ke7 26.Rg3+– (< 26.Nc5 bc5 27.Rg3 Kd8+–)) 24.fe6 (24.Bd4?! Bd4 25.Qg6 Qg6 26.fg6 Kg6 27.ed4 Rf4+/–) 24...Ke6 25.Qg7 (better is 25.Nc5 bc5 26.ed4+–) 25...Nd6?? (25...Rf7 26.Qg8 Ke7 27.Nc5 bc5 28.ed4 Qg4 29.Rg3 Qe2 30.dc5 Qf2 31.Kh1 Rf5+–) 26.ed4 Rg8 (26...Rf7 27.Re1 Kd7+–) 27.Re1 (27...Ne4 28.Re4 Kd6 29.dc5 Qc5 30.Rd4 Qd4 31.Qd4 Kc7 32.Rh7 Rg7 33.Qg7 Kd6 34.Qe5#; 27.dc5 Rg7 28.Re1 Kf7 29.cd6 Kg8 30.Bg7 Kg7 31.Re7 Kg8=) 1–0. Taulien,Hans_Juergen – Steingraeber,Barbara, RSX9E – A00 – Sokolsky–1, 2002.

4.e3 Qb6 5.Nc3 b4 6.ab4 (--> 1.b4 c6 2.e3 Qb6 3.a3 a5 4.b5 cb5 5.Nc3 b4 6.ab4).

4.e4 Qb6 5.Nc3 e6 (5...b4 6.ab4 Qb4 7.Ra4=) 6.Nb5 (6...d6 7.Rb1+=) +=. Taulien,Hans_Juergen – Boehnke,Hartmut, remoteschach.de, 2003.

4.e4 Nf6 5.Nc3 e5 6.d4 b4 7.de5 bc3 8.ef6 Qf6 9.Be3 Bd6 10.Bd4 Be5 11.Nf3 d6 12.Ne5 de5 13.Bc3 0–0 14.Bd3 Be6 15.0–0 Nd7 16.Qd2 b6 17.f4 Qe7 18.Bb2 Rac8 19.Qe3 ef4 20.Rf4 f6 21.Bd4 Qd6 22.Rb1 Qa3 (22...Rfd8 23.Bb6 Nb6 24.Rb6+=) 23.e5+= f5 (23...fe5? 24.Bh7 Kh8 25.Qa3 Rf4 26.Be3 Kh7 27.Bf4 ef4 28.Qd6+–; 23...Ne5?? 24.Bh7! Kh7 25.Qa3+–) 24.g4 Nc5 25.Ra1 Qb4 26.c3 (worse is 26.gf5 Nd3 27.cd3 Rf5 28.Rf5 Bf5+=; worse is 26.Bf5 Rfe8+=) 26...Qb2 27.Rb1 Qa2 28.gf5 Nd3 29.Qd3 b5 30.Re1 Qc4 (better is 30...Kh8!?+=) 31.Qe4+/– Bd5 32.Qe3 (32.Qe3 Rce8 33.e6+–) 1–0. Baroin,Bernard (2015) – Stefanov,Plamen (2185), IECG, 2004.

3.b5 d5

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

4.Bb2 e6 5.e3 Nf6 6.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6 5.a3 a5 6.b5).

4.Bb2 Nf6 5.e3 Qd6 6.f4 g6 7.Nf3 Bg7 8.Be2 0–0 9.0–0 Bg4 10.Be5 Qd8 11.Nc3 Nbd7 12.Ng5 Be2 13.Qe2 c5 14.Nf3 Nb6 15.d3 Rc8 16.Rab1 e6 17.Qe1 Ra8 18.Ne2 Qe7 19.Qh4 Qd8 20.Qg3 Rc8 21.Ra1 Nbd7 22.a4 (22.Rad1 c4+=) 22...Ra8 (22...Ne5 23.fe5 Nd7 24.Rac1=) 23.Bc3 Qb6 24.Qh4 Qd8 25.Rfb1 Nb6 26.Qh3 Nbd7 27.Ra2 Nb6 28.Be5 Rc8 29.Rd1 Ra8 30.g4 Nbd7 31.g5 Ne5 32.fe5 Nd7 33.d4 Rc8 34.Qh4 Re8 35.Qf4 Nb6 36.Nd2 Qe7 37.Rf1 Rc7 38.Rf3 Nd7 (38...Rec8 39.c3=) 39.c3+= Rec8 40.Rh3 Nf8 41.c4 (41.Nb3 c4 42.Nd2 Nd7+=) 41...Rd8 (41...cd4 42.ed4 dc4 43.Ne4=) 42.Rc2= Qd7 43.Rc1 Qe7 44.Rf3 Rdc8 45.Nc3 Rd7 46.b6 Rc6 47.Nb5 Rb6 48.Nb3 cd4 49.ed4 dc4 50.Rc4 Ra6 51.Rc8 Rc6 52.Rc6 bc6 53.Nd6 Rc7 54.Nc5 Qd8 55.Nce4 (55.Nf7!? Qb8+–) 55...Qb8 56.Nf6 Kh8 57.Nfe8 Qb1 58.Rf1 (58...Qb6 59.Ng7+–) 1–0. Taulien,Hans_Juergen – Rehder,Frank, RSXL2 –2003.

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

4.Bb2 Nf6 5.e3 e6 6.Nf3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6 5.a3 a5 6.b5).

4.e3 e5 5.Bb2 Bd6 6.Nf3 Bg4 (6...Nd7 7.Be2=+) 7.h3= Bf3 8.Qf3 Nf6 (8...Qf6 9.Be2=) 9.Qg3 Nbd7 (9...Nh5 10.Qg4 g6 11.Qa4=) 10.bc6+= bc6 11.Qg7 Rg8 12.Qh6 Rb8 (12...Qb6 13.Ra2+=) 13.Ra2 d4 14.g4 Rb6 (15.Kd1 Qb8=). Blankenberg,Bruno – Rosner,Dirk, DESC, 2000.

4.e3 e5 5.d4 Bd6 6.Bb2 e4 7.c4 Nf6 8.Nc3 0–0 9.Qb3 Be6 10.cd5 cd5 11.Nge2 Nbd7 12.Na4 Nb6 (better is 12...Qe7!?–/+) 13.Nb6+= Qb6 14.Nc3 Qd8 15.Be2 b6 16.Rc1 Rc8 17.h3 Re8 18.Kd2 Bf8 19.Na4 Qd6 20.Rc6 Rc6 21.bc6 Rb8 (worse is 21...Qc6 22.Bb5 Qa8 23.Nb6+/–) 22.Bb5 Ne8 23.Nc3 Nc7 24.a4 f5 25.g3 Bf7 26.Rc1 Be8 (26...Nb5? 27.Nb5 (worse is 27.Qb5 Rc8+=; 27.ab5?! Be7=) 27...Qb4 28.Qb4 Bb4 29.Bc3+–) 27.Nb1 Qb4 28.Qb4 Bb4 29.Bc3 Be7 30.Bb2 Rd8 31.Ke2 Kf8 32.f3 Rd6 33.Kf2 Rg6 (worse is 33...Nb5 34.ab5 Rd8 35.Nc3+/–) 34.Ba3 Ba3 35.Na3 Ke7 36.g4 ef3 37.Kf3 fg4 38.hg4 Rf6 39.Kg3 h6 40.Nb1 Re6 41.Rc3 Bg6 42.Nd2 Be4 (42...Nb5!? 43.ab5 Kd8+=) 43.Be2 Kd6 44.Bf3 Bg6 45.Be2 Be8 46.Bb5 Re7 47.Nf3 Ne6 (47...Nb5!? 48.ab5 a4+=) 48.Ne5+= Rc7 49.Rb3 Re7 50.Rb2 Kc7 51.Kf3 Nd8 52.Rc2 Re6 53.e4 de4 54.Kf4 (54.Ke3 Nf7 55.Bc4 Re5 56.Bf7=) 54...g5 (better is 54...Nf7+=) 55.Kf5+/– Rd6 56.Ke4 Ne6 57.Rd2 Nf4 58.d5 Bg6 59.Ng6 Ng6 60.Be2 Rf6+= 61.Bf3 Kd6 62.Rc2 Rf7 63.Bg2 Nf4= 64.Bh1 Nd5–/+ 65.Rd2 Rf4–+ 66.Kd3 Kc6 67.Kc2–/+ Rc4 68.Kb3 Rc5?? 69.Re2?? Kd6 70.Rd2 Ke5–+ 71.Re2 Kf4 72.Re4 Kg3 73.Re5?? Nb4 74.Rc5?? bc5 75.Kc4 Kg4 76.Kc5 Na2 77.Kb5 Nc3 78.Ka5 Kg3 79.Kb4 Na4 80.Ka4 h5 81.Kb3 g4 82.Kc3 Kf2 83.Kd3 g3 84.Ke4 g2 85.Bg2 Kg2 86.Kf4 h4 0–1. Schott,Detlef (1865) – Zahn,Richard (1905), Niederrhein–ch, 2007. (=1.b4 c6 2.a3 a5 3.b5 d5)

4.Nf3 Bf5 5.Bb2 e6 6.e3 Nf6 7.Be2 Bd6 (7...Bg4 8.Nc3=) 8.Nh4 Bg6 (8...Be4 9.Nc3=) 9.Nc3 Nbd7 (9...0–0 10.Ng6 fg6 11.f4=) 10.f4 d4 11.ed4 (11.Ng6 hg6 12.Na4 Ne4=+) 11...Bf4 12.g3 (12.0–0 Qc7 13.g3 Bd6=) 12...Bg5 (12...Bd6 13.Rb1=) 13.Ng6 hg6 14.Bf3 (14.h4=) 14...0–0 (14...Nd5 15.Rb1=) 15.Rb1 (15.bc6 bc6 16.h4 Bh6 17.Bc6 Rc8+/–) 15...Nb6 (15...Nd5 16.Qe2+=) 16.Qe2 (16.h4 Bh6 17.g4 Bf4 18.bc6 Bg3 19.Ke2 bc6+=) 16...Rc8 (16...Nbd5 17.0–0+=) 17.bc6 bc6 18.Qd3 (18.h4 Bh6+=) 18...c5 (18...Qd6 19.0–0+=) 19.dc5 (19.h4 Bh6 20.dc5 Qd3 21.cd3 Rc5+/–) 19...Rc5 (19...Qd3 20.cd3 Rc5 21.h4+=) 20.h4 Bh6 21.Qd8 Rd8 22.d3 Nbd5 23.Nd5 Nd5 24.c4 (24.Rh2!?=) 24...Nc3!?=+ 25.Bc3 Rd3 A double attack 26.Bb4 (26.Bd4 Rc4 (26...Rf3?? 27.Bc5 Rc3 28.Ke2+–; 26...Rd4?! 27.Rb8 Kh7 28.Be2–+) 27.Be2 Rcd4 28.Bd3 Rd3–/+) 26...ab4–/+ 27.ab4 Rc4 28.Be2 Re4 (28...Re3 29.Kf2 Rc2 30.Rhe1=+) 29.b5 Rg3–/+ (30.b6 Rg2–/+) 0–1. Wrede,Christian – Bonetti,Shane, TT–11 ETC, 2003.

4.Nf3 Bf5 5.Bb2 Nf6 6.e3 =.

4.Nf3 Bf5 5.e3 Nf6 6.Bb2 (6.Be2 e6=) 6...e6 7.c4 (7.Be2 Bd6=) 7...Be7 (7...Bd6 8.Nd4 Be4 9.d3=) 8.Nc3 (8.cd5 ed5 9.Be2 0–0=) 8...0–0 9.Rc1 Ne4 (9...Bd6 10.d4=) 10.cd5 cd5 11.Nd4 (11.Be2 Nc3 12.Rc3 Nd7=) 11...Bg6 12.Nde2 (12.Ne4 Be4 13.Qg4 Bf6=) 12...Nc3 13.Nc3 Nd7 14.Be2 Nb6 15.Na4 Nc4 16.Bc4 dc4 17.Rc4 (17.Qg4 Qd5=+) 17...Qd5 18.Qg4 Qb5 19.Rc7 Rfe8 20.Qd4 f6 21.Nb6 (21.f3 Rac8 22.Qd7 Qd7 23.Rd7 b5–/+) 21...Rad8–/+ 22.Nd7 e5 23.Qb6 Qd3 24.Bc1 (24.Qb7?? Bf5–+ (24...Ba3?! 25.Ba3 Be4 26.Qa7=+)) 24...Kh8 (< 24...Ba3 25.Ba3 Qa3 26.0–0–/+) 25.Nc5 (25.Qb7?? Be4 (25...Ba3?! 26.Ba3 Bf5 27.Qc6–/+) 26.Qb6 Rd7–+) 25...Qd5 26.Qb7 (26.e4 Bc5 27.Qc5 (27.ed5?? Bb6 28.Rb7 Bc5–+) 27...Qe4 28.Kf1–+) 26...Bc5 27.Qd5 Rd5 28.f3 Rb8 (28...Bd6 29.Rc3–+) 29.e4 Bd6 (29...Bb6 30.Re7 Rd3 31.Ke2–+) 30.Rc3 (30.Ra7 Rdb5 31.Ke2 Rc8–+) 30...Rc5 31.Kd1 Be8 32.Re1 Ba4 33.Ke2 Rb1 (34.Kf2 Rc3 35.dc3 Bc5 36.Ke2 Bb5 37.Kd2 Ra1–+) 0–1. Baer,Werner – Bonetti,Shane, TT–10 ETC, 2003.

4.Nf3 Nf6 5.Bb2 =.

4.Nf3 Nf6 5.e3 =.

2.a3 Nf6

3.Bb2 d6 4.Bf6 ef6 5.e3 =.

3.Bb2 g6 4.c4 (4.Nf3 Bg7=) 4...Bg7 5.Nf3 d6 (5...0–0 6.e3=) 6.g3 (6.d4 0–0=) 6...0–0 (6...e5 7.Bg2=) 7.Bg2 Be6 8.d3 d5 9.c5 (9.Nbd2 dc4 10.dc4 Qc8=) 9...a5 (9...Bg4 10.0–0=) 10.Nbd2 (10.0–0 Bg4=) 10...Na6 11.Bc3 (11.Qb3 Bg4=) 11...Nd7 (11...b6 12.Nb3=) 12.Bg7+= Kg7 13.Qc2 f6 14.Qb2 ab4 15.ab4 Nc7 (15...Bg4 16.Nd4 e5 17.h3+=) 16.Nd4 (16.Ra8 Na8 17.h3 Bf7+=) 16...Bf7 (16...Ra1 17.Qa1 Bf7 18.0–0=) 17.0–0 e5 18.N4f3 (18.Ra8 Na8 19.N4f3 b6+=) 18...Nb5 (18...Qe7 19.Nb3=) 19.Ra8+= Qa8 20.Ra1 Qd8 (20...Qe8 21.e3+=) 21.e3 Qc7 22.Ne1 Rb8 23.f4 b6 24.d4 bc5 25.dc5 Rb7 26.Nb3 Ra7 27.Ra7 Na7 28.Na5 Nb5 29.Nc2 Nc5 30.fe5= Nd7 31.ef6+= Nf6 32.Nd4 Qe5 33.Qd2 Nd4 34.Qd4 Qd4= 35.ed4 Be8 36.h3 Kf7 37.Kf2 Ke6 38.g4 Kd6 39.Ke3 g5= 40.Kd3 Bg6 41.Ke3 Be4 42.Be4 Ne4 43.Nb7 Kc7 44.Nc5 Nc5 45.dc5?? Kb7–+ 46.Kd3 Ka6 47.Kd4 Kb5 48.Kc3 h6 49.Kb3 d4 (49...d4 50.Kc2 Kb4–+) 0–1. Reimer,Karl – Weitzel,Paul (1655), 11sen.Kurpfalz op, 2005.

3.Nc3 a5 4.Na4?? (better is 4.Bb2=) 4...ab4–+ 5.ab4 (better is 5.c3 b5 6.Nc5 bc3 7.Qc2–+) 5...b5 6.c3 g6 7.Nf3 Bg7 8.d4 (8.g3 0–0–+) 8...d6 9.Qb3 (9.Bd2 ba4 10.Ra4 Ra4 11.Qa4 Ba6–+) 9...Be6 10.Qd1 1–0. Cvikova,Katarina – Plskova,Maria, II. Ladies Slovakia Championship, Semif, 2009.

3.Nc3 d5 4.d4 Bf5 5.Nf3 e6 6.e3 Be7 7.Bd3 Nbd7 8.h3 a5 9.b5 Ne4 10.Bb2 Nc3 11.Bc3 Bd3 12.Qd3 cb5 13.Qb5 Qc7 14.Qb2 0–0 15.0–0 Rfc8 16.Rfb1? Qc3–+ 17.Qc3 Rc3 18.Rb7 Rd8 19.Ne5? Ne5 20.Re7 Nd7 21.e4 de4 22.f3 Kf8 23.Rd7 Rd7 24.fe4 Rd4 25.e5 Re4 26.Ra2 Re5 27.Kh2 Re2 28.Rb2 Rcc2 29.Rc2 Rc2 30.h4 Ra2 31.Kh3 Ra3 32.g3 a4 (33.Kg4 Rg3 34.Kg3 a3–+) 0–1. Garyman – Whiterose, ChessWorld.net, 2005.

3.e3 d5 4.Nf3 =.

3.Nf3 d5 4.e3 Bg4 5.h3 Bh5 6.Bb2 a5 7.b5 e6 8.c4 Nbd7 9.d4 Be7 10.Be2 cb5 11.cd5 ed5 12.Qb3 b4 13.ab4 Bb4 14.Bc3 Bd6 15.Qb7 0–0 16.0–0 Qe7 17.Ra5 Rab8 18.Qa7 Rfc8 19.Qa6 Ne4 20.Rd5 Ndf6 21.Rh5 Nh5 (worse is 21...Nc3 22.Nc3 Nh5 23.Nb5+/–) 22.Be1 Nhf6 23.Bd3 Ra8 24.Qb5 Rcb8 25.Qc4 Rc8 ½–½. Crawford,Gary T (2085) – Bendig,Frank (2350), IECG, 2006.

3.Bb2 a5

(--> 1.b4 c6 2.Bb2 a5 3.a3 Nf6).

4.b5 e6 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 a5 4.b5 c6).

3.Bb2 d5

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

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

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

3.Bb2 e6

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

4.e3 Be7 5.Nf3 0–0 6.Be2 a5 7.0–0 ab4 8.ab4 Ra1 9.Ba1 Bb4 10.Nc3 d5 11.Na2 Bd6 12.c4 dc4 13.Bc4 b5 14.Bb3 b4 15.Qc2 Ba6 16.Rc1 Bd3 17.Qd1 c5 18.Ne1 Be4 (Unregistered player White disconnected and forfeits 0–1). Machete99 – guest573, ICC, 2002.

3.e3 d6

4.d4 Nbd7 5.Nc3 e5 6.e4 d5 7.ed5 cd5 8.de5 Ne5 9.Bg5 +=.

4.d4 Nbd7 5.Nf3 a5 6.b5 e5 7.de5 de5 8.Bb2 =.

4.d4 Nbd7 5.Nf3 e5 6.de5 de5 7.Bb2 e4 =.

4.d4 e5 5.Bb2 =.

4.Nf3 e5 5.Bb2 Be7 6.Be2 e4 7.Nd4 c5 =.

2.a4 a5

3.ba5 Ra5 4.d3 b5 5.Nc3 b4 6.Ne4 d5 7.Nd2 Nf6 8.Nb3 Ra8 9.Nf3 Nbd7 10.Bf4 Bb7 11.a5 h6 12.e3 g5 13.Bg3 Bg7 14.Ra4 c5 15.Ne5 h5 16.f4 Ne5 17.fe5 Nd7 18.d4 Qc8 19.Bb5 Bc6=+ 20.Bc6 Qc6 21.Ra2 cd4 22.ed4 h4 23.Bf2 Qc7 24.Be3 h3 25.g3 f6 26.0–0 Ra6? 27.Qd3+/– Re6 28.Qg6+– Kf8 29.Bg5 Rg8 30.Qf5 Kf7 31.ef6 ef6 32.Qd5 Rge8 33.Bd2 Kg8 34.Bb4 Bf8 35.Bf8 Kf8 36.Qf5 Re2 37.Qh3 Qc6 38.a6 Kg8 39.a7 Nb6 40.Qg4 Kh8 41.Qh3 Kg8 42.Qg4 Kh8 43.Qh3 Kg8= ½–½. Crafty 19.01 – Comet B25, 2004.

3.ba5 Nf6 4.Bb2 Ra5 5.Nf3 d5 6.e3 e6 7.c4 Bd6 8.d4 b6 9.Nbd2 0–0 10.Bd3 Nbd7 11.0–0 Bb7 12.Qc2 Qa8 13.Rfb1 Bb4 14.Ba3 Ba3 15.Ra3 Kh8 16.Qb2 Ra7 17.cd5 ed5 18.Bf5 Ra6 19.a5 Bc8 20.Rba1 Ra5 21.Ra5 ba5 22.Qa3 a4 23.Bc2 Re8 24.Ba4 Bb7 25.Bc2 Qb8 26.Qb3 Kg8 27.Bf5 Bc8 28.Qb8 Nb8 29.Bd3 Nbd7 30.Nb3 Ng4 31.Ra7 Nb8 32.Nc5 Be6 33.Rb7 Nf6 34.Ne5 Rc8 35.h3 Ne8 36.Re7 Kf8 37.Ra7 Nf6 38.f4 Rd8 39.Ra8 Re8 40.f5 Bf5 41.Bf5 Kg8 42.Kf2 g6 43.Bc2 Kh8 44.Nf7 Kg8 45.Ne5 Rf8 46.Ke2 Nh5 47.Ba4 Nf6 48.g4 Kh8 1–0. COMP – COMP, 2002.

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

3.c3 e5 4.Ba3 d5 5.e3 Nf6 6.f3 Bf5 7.d3 ab4–+ 8.Bb4 Qb6 9.Bf8 Qe3 10.Qe2 Qc1 11.Kf2 Kf8 12.Qd2 Qd2 13.Nd2 Nbd7 14.Nh3? Nc5 15.Ke3 Ra4 16.Ra4 Na4 17.c4 d4 18.Kf2 Nc5 19.Be2 Nd3 20.Bd3 Bd3 21.Ra1 Ke7 22.Ra7 Rb8 23.c5 Nd7 24.Ra3 Nc5 25.f4 e4 26.Ng5 e3 27.Ke1 ed2 28.Kd2 Bf5 29.Nf3 Rd8 30.Ra5 Nb3 31.Ke2 Na5 32.Kd2 Be4 33.Ng5 Nb3 34.Ke2 Bg2 35.Nh7 d3 36.Kf2 d2 37.Kg2 d1Q 38.Kg3 f5 (39.Nf6 Qg1 40.Kh4 Rh8 41.Nh7 Rh7#; 38...Qg1 39.Kf3 Nd2 40.Ke2 Qf1 41.Ke3 Qf3#) 0–1. Huber,Rick – Schirmer,Michael, corr ICCF EU–I–1525, 1988.

3.c4 ab4=+ 4.d4 Nf6 5.Nf3 d6 6.Bf4 Nbd7 7.Nbd2 c5 8.e3 g6 9.Bd3 Bg7 10.0–0 Nh5 11.Bg5 h6 12.Bh4 g5 13.Bg3 Ng3 14.hg3 (14.fg3 0–0–/+) 14...cd4 15.Nd4 Nc5 16.Bc2 h5 17.Qb1 h4 18.gh4 gh4 19.Qb4 h3 20.g3 h2 21.Kh1 Ra6 22.N2f3 Bd7 0–1. Big Giant Head – Da Wabbit, ChessWorld.net, 2002.

2.a4 Qb6

3.Ba3 d6 4.Nf3 Nf6 5.c4 e5 6.Nc3 e4 7.Ng5 Bf5 8.a5 Qd8 9.d3 e3 10.fe3 Be7 11.e4 Bg4 12.h3 Bd7 13.e3 0–0 14.Be2 Re8 15.0–0 h6 16.Nf3 Bf8 17.Nd4 Re5 18.Qb3 Rg5 19.Kh1 Bc8 20.Nf5 Be6 21.Bb2 Na6 22.Nd4 Bd7 23.Rf2 Be7 24.Raf1 Qf8 25.Nf5 Bf5 26.ef5 Re8 27.e4 Nh5 28.h4 Rg3 29.Bh5 1–0. Wall,Bill – Bahtender, Microsoft Gaming Zone, 1999.

3.b5 cb5 4.ab5 Qb5 5.Nc3 Qc6 6.e3 a6 7.Nf3 d6?? 8.Nd4?? Qc7 9.Ndb5!+– Qd8 10.Nd5 ab5 11.Ra8 Bd7 12.Nc3 b4 13.Nd5 b3 14.cb3 e6 15.Nb6 Bc6 16.b4 Qb6 17.Rb8 Ke7 18.Qb3 Qa7 19.Rc8+– Nf6 20.b5 Kd7 21.Rf8 Bd5 22.Rf7 Ke8 23.Rb7 Qb7+/– 24.Qa4 Bg2+= 25.Bg2 Qg2 26.b6 Nd7 27.Rf1+/– Ke7 28.Ba3 Qh2 29.b7 Rb8 30.Qd4 Qe5= 31.Qh4 Nf6 32.Qb4 Qd5 33.Rg1 g6 34.Qc3? Rb7–+ 35.Bb2 Qf5 36.Ke2?? Qb5–+ 37.Kf3 Qb2 38.Qc6 Qb5 39.Qc3 Qh5 40.Kg2 Qg4 41.Kh2 Qh4 42.Kg2 Qg5 43.Kh1 (43.Kh2 Qh6 44.Kg2 Ne4–+) 0–1. Sheldrick,Kevin – Steffensen,Neil, Australia ch jr, 1992.

3.c3 Nf6 4.d3 (4.a5 Qc7=) 4...e6 (4...a5 5.ba5 Qa5 6.e4=+) 5.e4= e5 (5...a5 6.Be3 Qc7 7.ba5 Ra5 8.Qb3=) 6.Nf3 d6 (6...Qc7 7.d4 ed4 8.e5=) 7.a5 (7.Be2 Qc7=) 7...Qc7 8.Be2 Be7 9.0–0 h6 (9...0–0 10.Re1=) 10.Qc2 (10.Be3 Ng4+=) 10...0–0 11.d4 ed4 (11...Nbd7 12.Nbd2=) 12.cd4 d5 13.e5 Ne4 14.Nc3 Bb4?? (Better is 14...Nc3 15.Qc3 Bf5=) 15.Nd5+– (15...Qd8 16.Nb4+– (16.Qe4?! cd5 17.Qd3 Ba5=)) 1–0. NN – Naggi, internet, 2002.

3.Ba3 g6

4.a5 A) 4...Qd4 5.Nc3 (5.c3 Qf6= 6.e4 d5 7.ed5 cd5 8.Nf3 e5 9.Be2 e4=; 5.Ra2 Qc4 6.Nc3 Bg7 7.e4 Qe6 8.Nge2 d5 9.Nf4 Qf6=) 5...d5 6.Nf3 Qg4 7.h3 Qd7 8.e4 Bg7 9.ed5 Bc3+=; B) 4...Qc7 5.e4 (5.Nf3 Bg7 6.d4 d5 7.Nbd2 Nd7 8.e4 de4 9.Ne4 Ngf6=; 5.e3 d5 6.Nf3 e5 7.b5 Bg7 8.Bb2 Bg4 9.Be2 Ne7=; 5.d4 Nf6 6.Nf3 d5 7.e3 Bg7 8.Be2 b5 9.0–0 0–0=; 5.Nc3 d5 6.e3 e5 7.b5 Bg7 8.Nf3 Nf6 9.b6 ab6=; 5.c4 Nf6 6.d4 e5 7.e3 d5 8.Nc3 Bg4 9.f3 Be6=; 5.Bb2 f6 6.e4 e5 7.c3 d5 8.ed5 cd5 9.Nf3 Nc6=) 5...Nf6 6.Bb2 d5 7.ed5 cd5 8.Bb5 Bd7 9.Bd7 Nbd7+=; C) 4...Qd8 5.e4 (5.Bb2 Nf6 6.e4 Bg7 7.Nf3 d6 8.Bd3 b5 9.ab6 Qb6=; 5.e3 Nf6 6.Bb2 Bg7 7.Nc3 d5 8.Nf3 0–0 9.Be2 Bg4=; 5.Nc3 Bg7 6.e4 d5 7.ed5 cd5 8.Nf3 Nc6 9.Bb5 Nf6=; 5.Nf3 Bg7 6.d4 Nf6 7.e3 0–0 8.Bd3 d5 9.0–0 b5=; 5.d4 Nf6 6.e3 Bg7 7.Nf3 d5 8.Be2 0–0 9.0–0 b5=) 5...Bg7 6.d4 d6 7.Nf3 Bg4 8.c3 Nf6 9.Bd3 0–0=.

4.e3 Bg7 (4...d5 5.d4 (5.a5 Qc7 6.Nf3 Bg7 7.d4 Nf6 8.Be2 0–0 9.0–0 Bg4=; 5.Nf3 Bg7 6.a5 Qc7 7.d4 Nf6 8.Be2 0–0 9.0–0 Bg4=; 5.c4 Bg7 6.d4 e5 7.a5 Qc7 8.Bb2 Be6 9.Nf3 ed4=; 5.Nc3 Bg7 6.a5 Qc7 7.Nf3 e5 8.Bb2 Nf6 9.Be2 0–0=) 5...Nf6 6.a5 Qd8 7.Be2 Nbd7 8.Nf3 Bg7 9.0–0 0–0+=; 4...Nf6 5.d4 (5.a5 Qc7 6.d4 d5 7.Nf3 Bg7 8.Be2 0–0 9.0–0 Bg4=; 5.Nf3 Bg7 6.a5 Qc7 7.Bb2 0–0 8.Be2 d6 9.0–0 Bf5=; 5.Nc3 Bg7 6.Nf3 d5 7.a5 Qc7 8.Be2 0–0 9.0–0 b5=; 5.c4 d6 6.c5 dc5 7.bc5 Qa5 8.Qb3 Na6 9.Bc4 e6=; 5.Be2 Bg7 6.a5 Qc7 7.Nf3 d6 8.0–0 0–0 9.d4 Bf5=; 5.Ne2 Bg7 6.d4 d5 7.Nd2 0–0 8.c4 Nbd7 9.b5 c5=) 5...Bg7 6.Nf3 d5 7.Be2 0–0 8.0–0 Bg4 9.Nbd2 Nbd7+=) 5.d4 (5.a5 Qc7 6.d4 d5 7.Nf3 Nf6 8.Be2 0–0 9.0–0 Bg4=; 5.Nc3 d5 6.a5 Qc7 7.Nf3 e5 8.Bb2 Nf6 9.Be2 Qd6=) 5...d5 6.c4 (6.a5 Qc7 7.Nf3 Nf6 8.Be2 0–0 9.0–0 Nbd7=) 6...dc4 (6...Bf5 A) 7.a5 Qc7 (7...Qd8 8.Nf3 Nf6 9.Be2 dc4=) 8.Nf3= Nf6 9.Be2 0–0=; B) 7.Nf3 Nf6 8.Be2 dc4 9.Bc4 0–0=; 6...e5 7.a5 Qc7 8.Bb2 Be6 9.Nf3 ed4=) 7.Bc4+= Nf6 8.Nf3 0–0 9.0–0 Ne4 (9...Bg4+=) 10.Nbd2 Nd6 11.Bd3 Be6 12.Ng5 (12.Qc2 Rd8+=) 12...Bc8 (12...Bf5 13.Nc4 Nc4 14.Bc4+=) 13.Nc4 Qd8 14.Ne4 Re8 15.b5 Ne4 16.Be4 Be6 17.bc6 Nc6 (17...Bc4?? 18.cb7 Nc6 19.ba8R Qa8 20.Rc1 Bf1 21.Bc6+– (21.Rc6?! Ba6+–)) 18.d5 (better is 18.Rc1!? Bd5 19.Qf3 Be4 20.Qe4+=) 18...Ba1+= 19.Qa1? (better is 19.dc6!? bc6 20.Qd8 Red8 21.Na5–/+) 19...Bd5–+ 20.Rd1 Bc4 (20...Be4 21.Rd8 Red8 22.h3–+) 21.Rd8 Rad8 22.h4 f6 23.Qb1 Ne5 24.f4 Ng4 25.Bg6= Ne3 26.Bh5 Bf7?? 27.Bf7+– Kf7 28.Qh7 Kf8 29.Be7! Re7 30.Qh8 Kf7 31.Qd8 Ng4 32.Kf1 Ne3 33.Kf2 Ng4 34.Kg3 f5 35.h5 Re3 36.Kh4 Nf6 37.Qc8 Re1 38.Qb7 Ke6 39.Qc8 Kf7 40.Qf5 Rh1 41.Kg3 Rh5 42.Qc2 Rd5 43.Kf3 Rd4 44.Qc7 Rd7 45.Qc4 Kg6 46.g4 (46.g4 Kg7 47.g5+–) 1–0. Reimanis,R (2145) – Laitinen,Mi (1985), WYb16 Kemer TUR, 2007.

3.c3 a5

4.ba5 Qa5 5.d4=.

4.b5 =.

3.c3 e5

4.a5 Qb5?? 5.Na3 (better is 5.e4 Qf1 6.Kf1+–) 5...Qd5= 6.d4 (6.d3 f5=) 6...Nf6 (6...ed4 7.e3 dc3 8.Qd5 cd5 9.b5=+) 7.Nf3 (7.e3 d6=) 7...d6 (7...ed4 8.Nd4 c5 9.bc5 Bc5 10.Nab5=) 8.c4= Qe4 9.e3 Bg4 (9...Be7 10.Be2=) 10.Bd3+= Bf3 11.gf3 Qh4 12.b5 (better is 12.Nc2+=) 12...Nbd7? (12...ed4 13.bc6 bc6 14.Qb3=) 13.h3 ed4= 14.ed4 d5 15.a6+/– ba6? 16.bc6 Bb4 17.Bd2 Bd2 18.Qd2 h6?? 19.cd5 Qd4 20.Nc2 Qe5 21.Ne3?? Qa1–+ 22.Nd1 Ne5 23.Bf5 Nf3 24.Ke2 Nd2 25.Kd2 Qa2 26.Ke1 Qd5 27.Bd7 Nd7 28.cd7 Qd7 29.Ne3 0–0 30.h4 Qe6 31.Rg1 f5 32.h5 f4 33.Rg6 Rf6 34.Ke2 Rg6 35.Kd3 Rg5 36.Nc4 Rd8 37.Kc3 Rb5 38.Na3 Rc8 39.Kd3 Rb3 40.Kd4 Ra3 (41.f3 Rc4#) 0–1. jordan2delta – Mokolato, internet, 2006.

4.a5 Qc7 5.d4 =.

4.a5 Qc7 5.e3 d5+= 6.d3 Bd6 7.e4 Ne7 8.Be2 0–0 9.Bg5 (9.Nf3 d4+=) 9...f6 10.Bh4 Ng6 11.Bg3 f5 12.ef5 Bf5 13.Nf3 Nd7 14.0–0 Rae8 15.Nbd2 Nf6 16.Nh4 (16.Re1 Nh5–/+) 16...Nh4–/+ 17.Bh4 e4 18.de4 (18.Bf6 Bh2 (18...gf6?! 19.de4 Be4 20.g3+=) 19.Kh1 ed3= (19...gf6?! 20.g3+=)) 18...Ne4 19.Ne4 Bh2 (19...de4?! 20.Qb3 Kh8 21.Bg3+=; 19...Be4?! 20.Bg3+=; 19...Re4?! 20.Bg3+=) 20.Kh1 Be4 (20...de4 21.g3 Bh3 22.Qb3 (worse is 22.Kh2 Bf1 23.Qf1 Qe5–/+) 22...Kh8 23.Kh2 Bf1 24.Rf1–/+) 21.Bh5 g6 22.Bg4 Be5 23.Ra3 Qg7 24.f3?! (24.c4 Bb2 25.Rh3 dc4–+) 24...Bf5 (24...Qh6 25.Qe1 Bd3 26.Rg1–+) 25.Bg5 (25.Bf5 Qh6 (25...gf5?! 26.Qd2–+) 26.Qe1 Rf5–+) 25...Bc3 (25...Bg4 26.fg4 Rf1 27.Qf1 Bc3 28.Qf2 Bb4 29.Ra4 Re1 30.Kh2 Ba5 31.Ra5 Qc7 32.Qf4 Qf4 33.Bf4–+) 26.Rb3 (26.Bf5 Rf5 27.g4 Rg5–+) 26...Bg4 27.fg4 Rf1 (27...Rf1 28.Qf1 Re1 29.Qe1 Be1–+) 0–1. Tagirov,Kajum K (1915) – Khakimzianov,Rinat, Ufa Dautov Memorial, 2007.

4.Nf3 =.

2.a4 e5

3.Bb2 Qc7 4.Nf3 f6 (4...e4 5.Nd4=+) 5.b5= d5 6.e3 Bg4 7.Be2 Bd6 8.h3 Bh5 9.Nc3 Ne7 10.bc6 Nbc6 (10...bc6 11.0–0=) 11.Nb5 Qb8 (better is 11...Qd7!?=) 12.Ne5+/– Be2 (12...fe5 13.Nd6) 13.Nc6 Bd1 (13...bc6 14.Nd6 Qd6 15.Qe2+/–) 14.Nb8 Bb8 15.Kd1 a6 (15...Kd7 16.f4+/–) 16.Nd4 0–0 (16...b6 17.Rb1+/–) 17.Ba3+– Re8 (17...Rf7 18.Rb1 Nc6 19.Nc6 bc6 20.Rb6+–) 18.Rb1 b5 (18...Nc6 19.Rb7 Na5 20.Rd7+–) 19.ab5 Be5? (better is 19...ab5 20.Nb5 Kf7+–) 20.b6 Rab8 21.Re1 (21.b7 g6+–) 21...Bd4 (21...Rb7 22.Be7 Ree7 23.Ne2+–) 22.ed4 Kf7 (22...Nc6 23.Re8 Re8 24.b7+–) 23.b7 Nc6 24.Bd6 Re1 25.Ke1 Re8 26.Kf1 Nb8 27.Re1 Rd8 28.Bc7 Rg8 29.d3 Nc6 (29...g5 30.c4+–) 30.c4 dc4 (30...Nb8 31.c5 Nc6 32.Ra1+–) 31.dc4 a5 (31...Nd4 32.b8R Rb8 33.Bb8+–) 32.d5 Nb8 (32...Nd4 33.c5+–) 33.d6 Kg6 (33...Nc6 34.d7+–) 34.Bb8 Rb8 35.d7 a4 36.c5 a3 37.c6 a2 38.c7 Rb7 39.d8Q (39.c8Q Rd7 40.Qd7 Kh6 41.Qg4 g5 42.Qf5 a1Q 43.Ra1 g4 44.Qf6 Kh5 45.Ra5) 39...Rb1 40.Qd3 (40...Kf7 41.Rb1 ab1Q 42.Qb1 Ke7 43.Qe4 Kd7 44.Qb7 Kd6 45.Qb6 Ke7 46.c8Q Kf7 47.Qbc7 Kg6 48.Qg4 Kh6 49.Qcg7) 1–0. NN – MullahKrekar, internet, 2002.

3.Bb2 f6 4.b5 d5 5.e3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 c6 5.a4).

3.Bb2 Bb4

4.Be5 Nf6

5.Bb2 0–0 6.Ba3 Ba3 7.Ra3 Re8 8.c4 d5 9.cd5 Nd5 10.e3 Bf5 11.Nf3 Nb4 12.Rc3 Qa5 13.Nd4 Bg6 14.Be2 Nd7 15.Na3 Nd5 16.Rc4 N5b6 17.Nb3 Qd5 18.Rd4 Qg2 19.Bf3 Qg5 20.a5 Nd5 21.h4 Qe7 22.Nc2 (22.h5!? Bf5 23.Bd5 Qa3 24.Rf4 cd5 25.Rf5–/+) 22...Nc5–+ 23.Nc1 Rad8 24.Bd5 Rd5 25.Rd5 cd5 26.f3? (better is 26.d3–+) 26...Qc7 27.Nb4 (27.Rg1–+) 27...Qg3 28.Kf1 Bh5 29.Rg1 Qh3 30.Kf2 (30.Ke1 Bf3 31.Qc2 Qh4 32.Kf1 Qb4–+) 30…Ne4! (30...Ne4 31.fe4 Qh4 32.Kf1 Bd1 33.Nd5 Re4–+) 0–1. Williams,Barry Mansell – Short,Allan J, NZCCA TT res corr9900, 1999.

5.c3 Ba5 6.Bd6 Bc7 (6...Ne4 7.Bf4=+) 7.Bc7= Qc7 8.Nf3 d5 9.e3 0–0 10.d4 c5 11.Be2 c4 12.0–0 Nc6 13.Nfd2 (13.Qc2 Re8=+) 13...Bf5 14.f3 Qb6 (14...Na5 15.Na3=+) 15.Na3= Qa5 16.Qc1 a6 17.e4 Bg6 18.Rd1 Rfe8 19.Qb2 Nd4 20.cd4 c3 21.Qb7 cd2 22.e5 Qc3 23.ef6 Rab8 24.Qa6 Qd4 25.Kh1 Re6 26.Qa5 Re2 27.h3 Rbe8 28.Rf1 Qa1!! 29.Ra1 Re1 30.Kh2 Ra1 31.Qd2 Ra3 32.Qd5 Ra4 33.Qc6 Raa8 34.fg7 Kg7 35.Qc3 Kg8 36.g4 Rad8 37.Kg3 Rd3 38.Qc6 Ree3 39.Kf4 Kg7 40.Qa8 Rf3 41.Qf3 Rf3 42.Kf3 h5 43.Ke3 hg4 44.hg4 Bc2 45.Kf4 Kf6 46.g5 Kg6 47.Kg4 Bf5 48.Kf4 Bd7 49.Ke4 Kg5 50.Ke3 f5 51.Kf2 Kg4 52.Kf1 f4 0–1. themonkey (2135) – ChadCVB (2200), GameColony.com, 2002.

5.c3 Be7

6.e4 d5 7.ed5 cd5 8.Nf3 0–0 9.Bb5 a6 10.Bd3 Nc6 11.Bf6 Bf6 (Worse is11...gf6 12.Qc2 h6 13.0–0+=) 12.0–0 Qc7 13.Re1 Nb4 14.Bc2 (14.Be2!? Bf5 15.Na3=+) 14...Nc2–/+ 15.Qc2 Bg4 16.Qd3 Rfe8 17.Re8 Re8 18.Qd5 Bf3 19.gf3 Re1 20.Kg2 Be5 (Better is 20...Qb6!?–+) 21.h3–/+ h6 22.f4 Bf4 23.a5 Bh2 24.Qf5 (24.Ra4 Bg1 25.f4–+) 24...g6 25.Qf6 (25.Qg4–+) 25...Bg1 26.Kf3 (26.Qc6 Qh2 27.Kf3 Qh3 28.Kf4 Bh2) 26...Qh2 27.Qd8 Kh7 (28.Qh4 Qh1 29.Kg4 f5 30.Kf4 Re4 31.Kg3 Bh2) 0–1. lucya (2130) – chief81st (1790), GameColony.com, 2002.

6.Nf3 0–0 7.Bf6 Bf6 (< 7...gf6 8.e3+=) 8.Qc2 d5 9.e3 c5 10.Bd3 g6 11.0–0 Qe7 12.a5 Nc6 13.Be2 Bf5 14.Qb3 c4 15.Qd1 Bg7 16.d4 Rac8 17.Nbd2 Rb8 18.Qa4 Rfe8 19.Qb5 Red8 20.Rfe1= a6 21.Qb6 Rd6 22.Qc5 Rc8 23.Qa3 Rd7 24.Qa4 Re8 25.Ra2 Na7 26.e4 Nb5 27.Qc2–/+ de4 28.Bc4 Nd6 29.Qa4 Qd8 30.Ne5 Be5 31.de5 Re5 32.Qb4 Nc4 33.Nc4 Rb5 34.Qa4 Rd3 35.Rc2 Qc7 36.Nb6 Qc5 37.Nc4 Bd7 38.Nd2 Rb2! 39.Ne4 Ba4 40.Nc5 Bc2 41.Nd3 Bd3 0–1. orane (2005) – mrduo, Live Game Caissa's Web, 2004.

6.Nf3 d5 7.a5 0–0 8.Qb3 Ng4 9.Bf4 c5 10.d4 Nc6 11.Qb5 a6 12.Qb6 Qb6 13.ab6 Bf5 14.Nbd2 cd4 15.Nd4 Nd4 16.cd4 Rfc8 17.h3 Nf6 18.g4 Be4 19.Rg1 Bb4 20.g5 Nd7 21.Bc7 Bc3 22.Ra4 Bc2 23.Ra2 Bd4 24.Rc2 Bb6 25.Bg2 Bc7 26.Nb3 Nb6 27.h4 Bh2 28.Rc8 Rc8 29.Rh1 Bd6 30.Kd1 Na4 31.e3 b6 32.Ke2 Rc2 33.Kf3 Be5 34.Nd4 Bd4 35.ed4 Nc3 36.Ra1 a5 37.Ke3 Re2 38.Kd3 Rf2 39.Rg1 Ne4 40.Ke3 Rc2 41.Be4 de4 42.Rb1 Rc6 43.Ke4 Re6 44.Kd5 h6 45.Kc4 Kh7 46.Rf1 hg5 47.hg5 Kg6 48.Rg1 Kh5 49.Rf1 Re7 50.Rg1 Re3 51.d5 Re2?? 52.Rd1+= Kg6 53.d6. pierred – fatontaraku, Yahoo, 2005.

6.Nf3 d6 7.Bf6 Bf6 8.e3 0–0 9.d4 d5 10.Bd3 Re8 11.0–0 Bg4 12.Nbd2 c5 (12...Qc7!?=) 13.Qb1+/– Bc8 14.Bh7 Kh8 15.Bf5 Nc6 16.Bc8 Qc8 17.Qb5 Ne7 18.Rab1 Rb8 19.Qa5 Ra8 20.Qc5 Qc5 21.dc5 Bc3 22.Rb7 1–0. b4_player (2210) – Raspoutine (2270), GameColony.com, 2003.

3.Bb2 d6

4.e3 (--> 1.b4 e5 2.Bb2 d6 3.e3 c6 4.a4).

3.b5

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

3.b5 d5 4.Bb2 Bd6 5.e3 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 c6 5.a4).

2.a4 e6

3.Bb2 (--> 1.b4 e6 2.Bb2 c6 3.a4).

2.Bb2 a6

3.Nc3 d5 A) 4.Nf3 Nf6 (4...Qd6 5.a3 Nf6 6.e3 a5 7.Be2 Nbd7; 4...Nd7 5.e4 Ngf6 6.Bd3 e5 7.a3 Bd6) 5.g3 a5 6.a3 e6 7.Bg2 ab4; B) 4.e4 Nf6 (4...de4 5.Ne4 Nf6 6.Qe2 Ne4 7.Qe4 Nd7; 4...d4 5.Nce2 e5 6.Nf3 Nd7 7.c3 dc3; 4...e5 5.Nf3 Nf6 6.Ne5 Bb4 7.ed5 0–0) 5.Bd3 de4 6.Ne4 Nbd7 7.Qe2 Ne4; C) 4.a3 Nf6 (4...Nd7 5.e3 e5 6.Nf3 Ngf6 7.Be2 Bd6; 4...a5 5.e3 Nf6 6.Nf3 Nbd7 7.Be2 e5; 4...e5 5.g3 Nf6 6.Bg2 c5 7.e4 d4) 5.Nf3 Nbd7 6.h3 e5 7.e3 Bd6; D) 4.e3 Nf6 5.a3 e5 6.Be2 Nbd7 7.Nf3 Bd6.

3.Nc3 e6 A) 4.e4 Bb4 (4...Nf6 5.a3 a5 6.b5 Bc5 7.e5 Nd5; 4...d5 5.Nf3 Nd7 6.a3 de4 7.Ne4 Ngf6) 5.a3 Bc3 6.Bc3 Nf6 7.Bd3 d5; B) 4.a3 d5 (4...a5 5.b5 d5 6.e3 Nf6 7.Nf3 Bd6; 4...Nf6 5.e4 a5 6.b5 Be7 7.Nf3 d5) 5.e4 Nd7 6.Nf3 Ngf6 7.Bd3 de4; C) 4.e3 Nf6 (4...d5 5.a3 Nf6 6.Nf3 a5 7.b5 Bd6) 5.a3 d5 6.Nf3 a5 7.b5 Bd6; D) 4.Nf3 Nf6 5.e4 Bb4 6.e5 Nd5 7.Be2 0–0.

3.Nc3 Nf6 A) 4.e3 d5 (4...e5 5.Nf3 e4 6.Nd4 Bb4 7.a3 Bc3; 4...e6 5.a3 d5 6.Bd3 Nbd7 7.Nf3 a5) 5.Nf3 Nbd7 6.a4 e5 7.b5 Bd6; B) 4.Nf3 d5 (4...e6 5.e4 Bb4 6.e5 Nd5 7.Be2 0–0) 5.e3 Nbd7 6.a3 e5 7.Be2 Bd6; C) 4.a3 d5 (4...a5 5.Nf3 d5 6.e3 Nbd7 7.d4 e6) 5.Nf3 Nbd7 6.e3 e5 7.h3 Bd6; D) 4.e4 d5 (4...e5 5.Nf3 Bb4 6.Ne5 0–0 7.Bd3 Re8) 5.Bd3 a5 6.b5 Nbd7 7.ed5 cd5.

3.c4 d6 4.e3 e6 5.Nf3 f6 (5...e5 6.Nc3=) 6.Be2 h6 (6...d5!?+=) 7.d4+/– g6 8.a3 b6 9.Qc2 f5 10.e4 Qf6 (10...Bg7 11.e5+/–) 11.d5 (11.e5!? de5 12.Ne5+/–) 11...e5 12.ef5 (12.Nc3 Ne7+/–) 12...Bf5+= 13.Bd3 Ne7 14.Nbd2 (14.Nc3 cd5 15.cd5 Bg7+=) 14...Bd3 (better is 14...cd5!? 15.Rd1 a5=) 15.Qd3+/– Qf5 (15...cd5 16.cd5 Nf5+/–) 16.Qf5 (better is 16.Ne4!? Ng8 17.dc6 Nc6 18.Nd6 Bd6 19.Qd6+–) 16...Nf5 (16...gf5 17.dc6 Nbc6 18.Rg1=) 17.Ne4+= Bg7 (17...Be7 18.dc6 Nc6 19.Rd1+=) 18.0–0 (18.Rd1 Kd7+/–) 18...c5 (18...cd5!? 19.cd5 Kd7+=) 19.bc5 bc5 20.Rab1 (20.g4 Nd4 21.Bd4 cd4 22.Nd6 Ke7+–) 20...Nd7 21.g4 Nd4 22.Nd6 Ke7 23.Nd4 Kd6? 24.Nf3 Raf8 25.Kg2 h5 26.h3 hg4+= 27.hg4 Rf4 28.Rbc1?? Rhf8 29.Ng5?? Bh6 30.Ne6–/+ R8f7?? 31.Nf4+– Bf4 32.Rc2 g5 33.f3 Be3 34.Re2 Bd4 35.Bd4 cd4 36.Rc1 Nc5 37.Rcc2?? d3–+ 38.Red2 dc2 39.Rc2 Rf4 40.Rc3 a5 41.Kg3?! a4 42.Kg2 Rd4 43.Kg3 Nd3 44.Kg2 Rf4 45.Kg3?? Ne1 46.c5 Kd5 47.c6 Kd4?? 48.Rc1 Rf3–+ 49.Kh2 Rf8 50.Re1 Rc8 51.Rc1 Kd5 52.c7+= Kd6 53.Kg2? Rc7–+ 54.Rc7?? Kc7 55.Kf3 Kd6 56.Ke4 Ke6 57.Kd3 Kd5 58.Ke3 e4 59.Kf2 Kd4 60.Ke2 e3 61.Kd1 Kd3 62.Ke1 e2 (62...e2 63.Kf2 Kd2 64.Kg3 e1Q 65.Kg2 Qe2 66.Kh3 Ke1 67.Kg3 Kf1 68.Kh3 Qg2) 0–1. Fournier,Frederic – Vango, Partie evaluee, 5m + 0s, 2008.

3.c4 f6 4.d4 h5 5.Qc2 Kf7 6.Nf3 h4 7.e4 g5 8.e5 d6 9.Bd3 de5 10.de5 Rh6 11.0–0 Bg4 12.Nd4 e6 13.ef6 Nf6 14.f4 gf4+= 15.Ne6?? Be6–+ 16.Rf4 Bb4 17.Nd2 Qd6?? 18.Raf1 Nbd7 19.Ne4 Qe7 20.Ng5?? Ke8?? 21.Bg6+/– Kd8 22.Rf6 Kc7?? 23.Ne6+– Kb6 24.c5 Nc5 25.Bd4 Rg8 26.Rb1 Rhg6 27.Rg6 Rg6 28.Rb4 Ka5 29.Bc5 Qe6 30.Qa4# 1–0. clochard (2200) – rudycfls (1995), net–chess.com, 2005.

3.c4 Nf6 4.e3 d6 5.Nf3 (5.Bf6 ef6 6.d4 d5=) 5...h6 (5...e5 6.Be2=) 6.d4+= Ne4 (6...Bf5 7.Bd3 Bd3 8.Qd3+=) 7.Bd3 Bf5 8.Qc2 d5 9.Nbd2 (better is 9.0–0+=) 9...g6? (better is 9...Nd2!? 10.Nd2 Bd3 11.Qd3 e5=) 10.Ne4+– de4 11.Be4 e6 12.Bf5 (12.a3 Be4 13.Qe4 Bg7+–) 12...ef5 (12...Bb4!? 13.Bc3 Bc3 14.Qc3 gf5+/–) 13.a3 Rh7 (13...a5 14.b5+–) 14.0–0 f6 15.Rad1 (15.Rfe1 Kf7+–) 15...Qc7 (15...a5 16.ba5 Qa5 17.Rd3+–) 16.Rc1 (16.e4!? fe4 17.Qe4 Kf7+–) 16...Nd7 17.d5 (17.e4 fe4 18.Qe4 Kf7+–) 17...c5 (17...cd5 18.cd5 Qc2 19.Rc2+–) 18.Qc3 (18.e4 cb4 19.ef5 g5 20.Qe2 Re7+–) 18...b6 19.Rfe1 g5 20.g3 Bg7? 21.Qc2 cb4 22.ab4 Rh8 23.Qf5 0–0–0 24.c5 b5 25.c6 Kb8 26.cd7 Qd7 27.Qd7 Rd7 28.Red1 g4 29.Nh4 Rhd8 30.Nf5 Bh8 31.d6 h5 32.Rd2 Rc8 33.Rc8 Kc8 34.Rc2 Kd8 35.e4 a5 36.ba5 b4 37.Ne3 Bg7 38.Nf5 Bf8?? 39.Rd2 Kc8 40.Rd5 Kb7 41.Rb5 Kc6 42.Rb4 Kc5 43.Rb3 Kc4 44.Rc3 Kb4 45.Rd3 Ka5 46.Bf6 Kb4 47.e5 Kc4 48.Rd1 Kc3 49.Kf1 Kc2 50.Ke2 Bd6 51.ed6 1–0. Fournier,Frederic (1855) – rihu2009, Active, 2011.

3.e3 d5 A) 4.Nf3 Nf6 (4...e6 5.Bd3 Nd7 6.0–0 Ngf6 7.a3 a5; 4...Nd7 5.c4 Ngf6 6.Nc3 e6 7.a3 a5) 5.c4 e6 6.a3 a5 7.b5 Bd6; B) 4.Bd3 Nf6 (4...Nd7 5.Nf3 Ngf6 6.0–0 e6 7.a3 a5; 4...a5 5.b5 Nf6 6.Nf3 Nbd7 7.Nc3 Nc5; 4...e6 5.Nf3 Nf6 6.a3 Nbd7 7.Nc3 a5; 4...Qd6 5.Nf3 Nd7 6.a3 e5 7.e4 f5) 5.Nf3 Nbd7 6.0–0 e6 7.a3 a5; C) 4.a3 Nf6 (4...e6 5.Nc3 Nd7 6.f4 Ngf6 7.Bd3 a5; 4...Nd7 5.Nf3 Ngf6 6.Bd3 a5 7.b5 Nc5; 4...a5 5.Nc3 Nf6 6.Nf3 Nbd7 7.Be2 e5) 5.Nf3 Nbd7 6.Be2 e6 7.0–0 Bd6; D) 4.c4 Nf6 (4...e6 5.Nf3 Nf6 6.a3 a5 7.b5 Bd6; 4...Be6 5.Ne2 Nf6 6.Nd4 Bc8 7.Qb3 a5; 4...Nd7 5.Nf3 Ngf6 6.Nc3 e6 7.a3 a5; 4...a5 5.b5 cb5 6.cd5 b4 7.a3 Nf6) 5.Nf3 e6 6.a3 a5 7.b5 Bd6.

3.e3 Nf6 A) 4.Be2 e6 5.Nc3 Bb4 6.a3 Be7 7.f4 0–0; B) 4.a3 a5 (4...d5 5.Nf3 Nbd7 6.Be2 e6 7.Nc3 Bd6) 5.b5 d5 6.Nf3 e6 7.c4 Bd6; C) 4.Nf3 d5 (4...e6 5.a3 d5 6.c4 a5 7.b5 Bd6) 5.c4 e6 6.a3 a5 7.b5 Bd6; D) 4.Nc3 d5 (4...e5 5.Nf3 e4 6.Nd4 Bb4 7.a3 Bc3; 4...e6 5.a3 d5 6.Bd3 Nbd7 7.Nf3 a5) 5.Nf3 Nbd7 6.a4 e5 7.b5 Bc5.

3.e3 h5 4.Bc4 d6 5.Qf3 b6 6.Bg7 Bg7 7.Qf7 Kd7 8.Qg7 Nf6 9.Nf3 Rg8 10.Bg8 (10...Qg8 11.Qg8 Ng8 12.d4+–) 1–0. Wall,Bill – Cybersnake, Microsoft Gaming Zone, 1999.

3.e4 Nf6 4.Nc3 e5= 5.Nf3 Bb4 6.Ne5 d6 7.Nf3 0–0=+ 8.d3 Bg4 9.Be2 Nbd7 10.0–0= Re8 11.a3 Bc5 12.Qd2 Bf3 13.gf3 Nh5 14.f4 Qh4 15.Bh5 Qh5 16.Ne2 Re6 17.f5?? Rh6–+ 18.Kg2 Qh2 19.Kf3 Bf2! 20.Ng1?? Qg3 21.Ke2 Rh2 22.Kd1 Bg1 23.Qf4 Qg2 (24.Qh2 Bh2–+) 0–1. thotares (1650) – rla, internet, 2007.

3.Nf3 b5 4.g3 Bb7 5.Bg2 Nf6 6.0–0 Ng4 (6...e6 7.c3=) 7.e4 Bc8 (7...a5!?+=) 8.a4+/– d6 9.Nc3 Nd7 (9...ba4 10.d4+/–) 10.ab5+– cb5 11.Nb5! Bb7 (11...ab5 12.Ra8 Pinning (12.Ra8 Deflection)) 12.Nc3 Nde5 13.Nd5 Bc6 (13...e6 14.Ne5 Ne5 15.Ne3+–) 14.Re1 f6 (better is 14...e6+–) 15.Nd4 Bd5 (15...Bd7 16.f4 Nc4 17.Bc3+–) 16.ed5 h5 (16...Qb6 17.Bc3+–) 17.Ne6 Qb6 18.Bd4 Qb4 (18...Qb7 19.b5! a5 20.b6+–) 19.f4 (better is 19.Be5 fe5 20.Nc7 Kd7 21.Na8+–) 19...Qd4 (19...Nd7+–) 20.Nd4 h4 (20...Nd7 21.Ne6 Kf7 22.Qe2+–) 21.fe5 h3 22.Qg4 hg2 23.ed6 Rc8 24.d7 (24.Qe6 Rc4 25.Reb1 Rb4 26.Rb4 Rh2 27.Rb8#) 24...Kd8 (24...Kf7 25.dc8Q Rh2 26.Qce6 Ke8 27.Qg6 Kd8 28.Qb6 Kd7 29.Qc6 Kd8 30.Ne6#) 25.dc8Q# 1–0. usingprogram (2015) – zdzislaw07, 2012.

3.Nf3 d5 A) 4.g3 Nf6 (4...e6 5.a3 Nf6 6.e3 a5 7.b5 Bc5; 4...a5 5.b5 cb5 6.e3 b4 7.a3 ba3) 5.Bg2 e6 6.a3 a5 7.b5 cb5; B) 4.e3 Nf6 (4...Nd7 5.c4 Ngf6 6.Nc3 e6 7.c5 a5; 4...e6 5.Bd3 Nd7 6.a3 Ngf6 7.Nc3 a5) 5.Bd3 Nbd7 6.0–0 Qc7 7.c4 a5; C) 4.c4 dc4 (4...Nf6 5.e3 e6 6.a3 a5 7.b5 Nbd7; 4...e6 5.Qb3 a5 6.b5 Nd7 7.Nc3 Ngf6; 4...a5 5.b5 Nf6 6.Nc3 Nbd7 7.e3 e6) 5.Qc2 Nf6 6.Qc4 Nbd7 7.e3 Nb6; D) 4.Bd4 Nf6 (4...a5 5.ba5 Nf6 6.e3 Nbd7 7.Bd3 Qa5) 5.Nc3 Nbd7 6.e3 Qc7 7.Bf6 Nf6.

3.Nf3 e6 A) 4.e3 Nf6 (4...d5 5.c4 Nf6 6.a3 a5 7.b5 Bd6) 5.a3 d5 6.Nc3 Nbd7 7.Bd3 a5; B) 4.Nc3 Nf6 5.e4 Bb4 6.e5 Nd5 7.Be2 0–0; C) 4.e4 Nf6 (4...d5 5.Nc3 Nd7 6.Bd3 Ngf6 7.a3 de4) 5.e5 Nh5 6.a3 d5 7.Nc3 a5.

3.Nf3 Nf6 A) 4.e3 d5 (4...e6 5.a3 d5 6.c4 a5 7.b5 Bd6) 5.Bd3 e6 6.a3 a5 7.b5 Nbd7; B) 4.a3 d5 (4...e6 5.e4 Ne4 6.Bd3 Nf6 7.Nc3 a5; 4...a5 5.Nc3 d5 6.e3 Nbd7 7.Be2 e5) 5.Nc3 Nbd7 6.g3 e5 7.Bg2 Bd6; C) 4.Nc3 d5 5.a3 Nbd7 6.e3 a5 7.Be2 e5; D) 4.e4 Ne4 (4...Qb6 5.Bd3 Qb4 6.Bc3 Qa4 7.Bd4 c5; 4...a5 5.e5 Nd5 6.c4 Nb6 7.ba5 Ra5) 5.Nc3 d5 6.Bd3 Bf5 7.0–0 Nd7.

3.g3 d5 4.Nf3 Nf6 5.a3 Bf5 6.d3 Nbd7 7.Nh4 Bg4 8.h3 Bh5 9.g4 Bg6 10.Nd2 e5 11.Bg2 a5 12.Ng6 hg6 13.b5 Bc5 14.e3 Qc7 15.c4 cb5 16.cd5 b4 17.Rc1 ba3= 18.Ba3 Qb6 19.Nc4 Bb4 20.Ke2 Qc7 21.Bb4 ab4 22.Qb3 0–0 23.d6 Qc5 24.g5 Ne8+= 25.Bb7 Rb8 26.Nd2 Qd6= 27.Ne4 Qe7 28.Bd5 Nb6 29.Bc6 Nc7 30.Rc5 Na6 31.Rb5 Qc7 32.Rc1+= Nd7 33.Qb2 Rb5 34.Bb5 (34...Qb7 35.Ba6 Qa6 36.Qb4+/–) 1–0. Laurent,C – Dehaybe,A, corr Belgium Mkl, 1994.

3.c4 d5

4.e3 e6 5.Nf3 f6 6.a3 Bd6 7.d4 Ne7 8.Nbd2 b5 9.cd5 cd5 10.Bd3 Bd7 11.Nb3 0–0 12.Qc2 f5 13.Nc5 Bc8 14.0–0 Ng6 15.a4 Bc5 16.dc5 ba4 17.Ra4 Nc6 18.b5+– Nb8 19.Nd4 Bb7?? 20.Ne6 Qe7 21.Nf8 Nf8 22.Rfa1 g6 23.Qc3 Kf7 24.c6 Bc8 25.Qh8 Ke8 26.e4 de4 27.Ba3 ed3 28.Be7 Ke7 29.Qg7 Ke8 30.Re1 Be6 31.c7 Nbd7 32.Ra6 (32...Rd8 33.Rae6 Ne6 34.Re6#) 1–0. pierre (2145) – rla, internet, 2007.

4.e3 Bf5 5.cd5 cd5 6.Qb3 e6 7.a4 Nc6 8.b5 Nb4 9.d3 Rc8 10.Nf3? (Better is 10.Na3–/+) 10...Nc2–+ 11.Kd1 Na1 12.Ba1 Nf6 13.h3 Nd7 14.Bd4 Nc5 15.Bc5 Rc5 16.Nbd2 Be7 17.g4 Bg6 18.h4 h5 19.g5 Bd6 20.Qb2 Qa5 21.ba6 Qa4 22.Ke2 Qa6 23.Qb3 (23.Ke1 Qb5 24.Qa1 Bd3–+) 23...0–0 24.Ne1 Rfc8 25.f4 Rb5 26.Qd1 Rb2 27.Kf3 (27.Nef3 Qd3 28.Kf2 Qc3–+) 27...Qa2 28.Rh2 Bb4 (29.Kg3 Bd2–+) 0–1. hal1958 – FlinstoneNL, HCL–A1335 playchess.de, 2003.

3.e3 a5

4.ba5 Qa5 (4...Nf6 5.Nf3 Na6 6.Be2 Qa5 7.Nc3 b5; 4...Ra5 5.Nf3 Nf6 6.Be2 Na6 7.Nc3 e6; 4...Na6 5.Nc3 Qa5 6.Nf3 Nf6 7.Be2 b5; 4...d6 5.Nf3 Nf6 6.Nc3 Qa5 7.Be2 Na6) 5.Nc3 Qd8 (5...Nf6 6.Nf3 Na6 7.Be2 b5) 6.Nf3 (6.f4 Nf6 7.Nf3 Na6) 6...e6 (6...Nf6 7.d4 g6) 7.a3 (7.g3 Nf6) 7...Nf6 8.Be2 (8.a4 d5=) 8...d5 9.h3 (9.0–0 Bd6=) 9...Na6 10.0–0 Bd6 11.Qc1 (11.Re1 e5+=) 11...b5 (11...e5 12.Nd1 e4 13.Nd4+=) 12.Nd1 0–0 13.Ne5 (13.a4 b4=) 13...Be5 (13...Nb8 14.d4+=) 14.Be5= Bb7 (14...Nd7 15.Bd6 Re8 16.Qb2=) 15.f4 (15.a4 ba4 16.Ra4 c5+=) 15...Nc5 16.d4 (16.d3 Ncd7=) 16...Nce4+= 17.Bd3 Qa5 (17...Ng3 18.Bf6 Qf6 19.Rf3+=) 18.c3 (18.Nf2 Ng3 19.Rd1 Nfe4 20.Ne4 Ne4 21.Be4 de4=) 18...Ng3 (18...Ne8 19.Be4 de4 20.f5 ef5 21.Rf5=) 19.Rf2 (19.Bf6 gf6 20.Rf3 Ne4=) 19...Nge4 (19...Nfe4 20.Rf3–/+) 20.Rf3 (20.Rfa2 Nd7=) 20...Rac8 (20...Ne8 21.f5 f6 22.Bh2+=) 21.f5 (21.a4 Ra8 22.Nb2 Nc3 23.Bf6 gf6=) 21...ef5 (21...Nd7 22.Bh2+=) 22.Rf5= g6?? (better is 22...Ra8=) 23.Rf6+– Nf6 24.Bf6 Rce8 (24...Qb6+–) 25.e4! Re6 (25...de4 26.Qh6 Mate attack) 26.e5 Qa4 (26...Rf6 27.ef6 Qd8+–) 27.Qh6 Rf6 28.ef6 Bc8 (28...Qd1 29.Rd1 Re8 30.Qg7) 29.Qg7 1–0. lican – leoooo, playok.com, 2012.

4.b5 Nf6 (4...d6 5.Nf3 Nf6 6.Nc3 Nbd7 7.Be2 Nc5; 4...a4 5.Nf3 Nf6 6.Na3 d5 7.Be2 e6; 4...d5 5.Nf3 Nf6 6.Nc3 g6 7.Bd3 Bg7) 5.Nc3 d6 6.Nf3 Nbd7 7.Rb1 Nc5.

3.e3 e6

4.a3 d6 =.

4.Nc3 d5 5.Bd3 Nd7 6.Nf3 Ngf6 7.a3 a5.

4.Nc3 Nf6 5.a3 d5 6.Nf3 Nbd7 7.h3 e5.

4.Bd3 d5 5.Nf3 Nd7 6.a3 Ngf6 7.0–0 a5.

4.Bd3 Nf6 5.Nc3 Bb4 6.a3 Be7 7.Nf3 d5.

4.Nf3 d5 5.a3 Nf6 6.c4 a5 7.b5 Bd6.

4.Nf3 Nf6 5.a3 d5 6.Nc3 Nbd7 7.Be2 Bd6.

4.Nf3 h6 5.a3 d5 6.c4 Nf6 7.Nc3 Be7 8.d4 0–0 9.c5 Qc7 10.Bd3 Nbd7 11.Qc2 e5 12.de5+/– Ne5 13.Ne5 Qe5 14.Na4 Qg5+= 15.Nb6 Rb8 16.f4 Qh4= 17.g3 Qh3 18.Be5 Bg4= 19.Bb8 Rb8 20.Bf1 Qh5 21.Bg2 Bf5=+ 22.Qd2 Ne4 23.0–0?? Nd2–+ 24.Rf2 Ne4 25.Rff1 Bf6 26.Rad1 Nc3 27.Rd2 Re8 28.Re1 Ne4 29.Rdd1 Bc3 30.Rf1 Bb2 31.a4 Nc3 32.Rd2 Ba3 33.b5 ab5 34.ab5 Nb5 35.Nd5 cd5 36.Rd5 Re3 37.Rd8 Kh7 38.Bb7 Bc5 39.Kh1 Qe2 40.Bg2 Be4 41.Be4 Re4 42.Rdd1 Nc3 43.Rc1 Re3 (44.Rce1 Qd3 45.Kg2 Re2 46.Re2 Qe2 47.Rf2 Qf2 48.Kh3 f5 49.g4 Qf3 50.Kh4 Qg4#; 43...Re5 44.Rce1 Qd3 45.Kg2 Re2 46.Re2 Qe2 47.Rf2 Qf2 48.Kh3 f5 49.g4 Qf3 50.Kh4 Qg4#) 0–1. Fredek (2090) – Torcoz, Freundschaftspartie, 5m + 0s, 2005.

2.Bb2 Na6

3.a3 Qb6 4.c4 (4.e4 Nf6 5.Ba6 Qa6 6.Bf6 ef6=) 4...Nf6 5.e3 (Better is 5.c5 Qc7 6.Bf6 ef6 7.e3=) 5...e6? (5...c5 6.b5=) 6.Nf3 (6.Bf6!? gf6 7.c5+/–) 6...c5 7.b5 Nc7 8.a4 a5 9.Be2 d5 10.d3 Qd6 11.Nbd2 dc4 12.dc4 b6+= 13.Qc2 Bb7 14.Rd1 Qe7+= 15.Nb3 Rd8 16.0–0 Rd1 17.Rd1+/– Ne4 18.Ne5 Qf6 19.Bf3 Qf5?? 20.Nf7!! Kf7 21.Rd7+– Be7 22.Rc7 Rb8 23.Rb7! (23...Rd8 24.Be4+–) 1–0. Sternik,Ryszard – Chmurczyk, corr, 1995.

3.a3 Nc7 4.Nf3 e6 5.e4 d5 6.Nc3 g6? (6...a5 7.ed5 ab4 8.ab4 Ra1 9.Ba1 ed5 10.b5=) 7.d4 (Better is 7.Nd5!? f6 8.Nc7 Qc7 9.e5+–) 7...Bg7 8.e5 Ne7 9.Bd3 f6 10.Qe2 f5 11.h4 Ng8 12.Bc1 Nh6 13.Bg5 Qd7 14.h5 Qf7 15.hg6 Qg6 16.Qe3 Ng4 17.Qf4 Bd7 18.Ke2 Nb5 19.Nb5 cb5 20.Qg4 fg4 21.Bg6 Kf8?? (Better is 21...hg6 22.Rh8 Bh8+–) 22.Rh7 Rh7 23.Bh7 gf3 24.Kf3 a5 25.Bd2 ab4 26.Bb4 Kf7 27.g3 Rh8 28.Bd3 Bh6 29.Rh1 Kg7 30.Kg2 Be8 31.Be7 Kf7 (31...Kg8+–) 32.Bf6 Rg8 33.Rh6 Kf8 34.Rh7 Bf7 35.Bb5 Rg4 36.f4 Bg8 (36...Rg6+–) 37.Be7 1–0. hertford – prossett, ChessWorld.net, 2002.

3.a3 e6 4.Nf3 b5 5.e4 d5 6.Bd3 de4 7.Be4 Qd6 8.Be5 Qd7 9.0–0 Nf6 10.Nc3 Nc7 11.Nd4 Ne4= 12.Ne4 Qd5 13.Bc7 Qe4 14.c3 Bb7 15.f3 Qd5 16.Qe2 Ba6 17.Rfe1 Bd6 18.Bd6+/– Qd6 19.g3 0–0 20.f4 Rfe8 21.Qe3 Rad8 22.g4 Bb7 23.a4 a6 24.g5 c5 25.Nb3?? Qd5–+ 26.Nc1 Qg2# 0–1. Matthias – Whiskey40, mySchach.de, 2005.

3.a3 Nf6 4.Bf6 ef6 5.e3 =.

3.a3 d5

4.e3 Nc7 +=.

4.e3 g6?? 5.Bh8+– f6 6.Qf3 Bf5 7.d3 Qd7 8.Be2 0–0–0 9.g4 Be6 10.h4 c5 11.c3 cb4 12.ab4 Kb8 13.d4 Qd6 14.Nh3 f5 15.Be5 fg4 16.Bd6 Rd6 17.Qf8 Kc7 18.Ng5 Rd8 19.Ne6 (19...Kd6 20.Qd8 Ke6 21.Qg8 Kd7 22.Bg4 Kc7 23.Qc8 Kb6 24.Qe6 Kc7 25.Qe7 Kc6 26.Qd7 Kb6 27.Qd6 Kb5 28.Be2#) 1–0. 1805DYDIDIDY – Whiskey40, mySchach.de, 2005.

4.Nf3 Nf6 5.e3 Bg4 6.Ba6 ba6 7.h3 Bf3 8.Qf3 e6 9.Bf6 gf6 (9...Qf6 10.Qf6 gf6 11.d4+=) 10.Nc3 (10.Qe2 a5=) 10...c5 (10...a5!?=) 11.bc5 Bc5 12.Qg4 Qa5 13.Qg7 Ke7 14.g3 .Rag8 15.Qh6 Rg6 16.Qh5 Rg5 17.Qh4 Ke8 18.Rb1 Bd6 19.Rb7 Qa3 20.Qd4 Be5?? 21.Qa7 Qa5 22.Re7 Kf8 23.Rf7 Kg8 24.Qd7 Qb5 25.Nb5 Bd6 26.Qe8 1–0. MT – guest1119, ICC, 2004.

2.Bb2 b5

3.a3 a6 4.e3 d5 5.d4 Nf6 6.Nd2 e6 7.Ngf3 h6 8.Bd3 Be7 9.0–0 0–0 10.Ne5 Bd6 11.Ndf3 Be5 12.Ne5 Bd7 13.c3 a5 14.a4 ba4 15.Ra4 c5 16.Ra5 Ra5+= 17.ba5 c4 18.Bc2 (18...Qa5 19.Qa1 Qa1 20.Ra1+=). guinguin – LuckyMiki, internet, 2007.

3.a4 a5 +=.

3.e3 a6 4.c4 (4.a4 Bb7+=) 4...a5 (4...Nf6 5.Nf3=) 5.cb5+= ab4 6.Bc4 (6.a3 ba3 7.Ra3 Ra3 8.Na3 Nf6+=) 6...e6 (6...d5 7.Be2=) 7.Nf3 Qa5 (7...d5 8.Be2=) 8.bc6 (8.a3 Bb7 9.bc6 Nc6+=) 8...Nc6= 9.0–0 (9.a3 Rb8=) 9...f6 (9...d5 10.Be2=) 10.Qc2 (10.a3 Rb8+=) 10...Ne5 (10...Ba6!?+=) 11.Ne5+/– fe5 12.Bd3 (12.a3 Qc7+/–) 12...Bd6 (12...Nf6 13.a3 ba3 14.Na3+/–) 13.Bh7 (13.a3 Bb7 14.ab4 Qb4 15.Ra8 Ba8+/–) 13...Nf6 14.Bg6 Ke7 (better is 14...Kd8 15.a3 Rb8 16.ab4 Qb4+/–) 15.d3 (15.a3 Ba6 16.ab4 Qb4 17.Rc1+=) 15...Ba6= 16.Nd2 (16.Rd1 e4 17.h3 (17.de4?? Bh2 18.Kh1 Qc7 19.Qc7 Bc7 20.Kg1 Bh2 21.Kh1 Be5 22.Kg1 Bb2–+; 17.Be4? Bh2 18.Kf1 Ne4–+) 17...Bd3 18.Rd3 ed3 19.Bd3–/+) 16...Rac8 (16...e4!? 17.Ne4 Bh2 18.Kh1 Ne4 19.Bg7 Be5 20.Bh8 Rh8 21.Kg1 Bh2 22.Kh1 Qe5–+) 17.Qb3 (17.Qd1!?+=) 17...e4= 18.f4 (18.Ne4? Ne4 19.f4 Nd2–+; 18.Be4?? Bh2 19.Kh1 Bg3 20.Kg1 Rh1 21.Kh1 Qh5 22.Kg1 Qh2) 18...ed3 (18...ef3 19.Nf3 Rh6–/+) 19.Bd3+/– Bd3 20.Qd3 Qh5 21.h3 Ng4? (better is 21...Bc5+/–) 22.hg4+– (22.hg4 Qg4 23.Ne4+–) 1–0. Wall,Bill – Smokey, internet, 2005.

3.e3 Bb7 4.Nf3 Nf6 5.a3 e6 (--> 1.b4 b5 2.Bb2 Nf6 3.e3 Bb7 4.Nf3 e6 5.a3 c6).

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

3.e3 e6 4.Nf3 (4.a4 A) 4...Bb4?? 5.Bg7 (5.ab5?! Nf6=) 5...Be7 6.Bh8+–; B) 4...Bb7+=) 4...f6 (4...Nf6 5.a4=) 5.a4+= Ba6 (5...Bb4 6.ab5 a6 7.Ra4+=) 6.ab5 Bb7 7.c3 c5 8.bc5+– Bc5 9.d4 Bd6 10.c4 Qc7 11.c5 Be7 12.Nbd2 Bd5? 13.e4 Bb7 14.Ra7!! Qc8 15.Ra8 Ba8 16.Bd3 d6 17.c6 Qc7 18.Qa4 d5 19.Qa8 Qb6 20.Bc3 f5 21.Ba5 Bd6 22.Bb6 Ne7 23.e5 Nc8 24.ed6 Nb6 25.Qb8 (25...Nc8 26.Qc8 Kf7 27.Ng5 Kg6 28.Qe6 Kh5 29.Be2 Kg5 30.h4 Kf4 31.g3#) 1–0. Fournier,Frederic – Salan,Pascal, AJEC Defi cor, 1996.

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

3.e4 Na6 4.a3 d6 (4...Nf6 5.e5 Nd5 6.c4 bc4 7.Bc4+=) 5.c4 Be6? (better is 5...Nc7!?+=) 6.cb5+– Nc7 (6...Nb8!?+–) 7.bc6 Nb5?? (7...d5 8.e5 Nh6+–) 8.Bb5 Qb8 (8...Qc7 9.Nc3+–) 9.Nc3 Qb6 (9...Qc7 10.d4+–) 10.c7 Bd7 11.Rc1 Qc7 (11...Nf6 12.Nd5 Qb7 13.Nf6 gf6 14.Bd7 Kd7 15.Qa4 Ke6 16.Ne2 Qe4 17.f3 Qe2 18.Ke2+–) 12.Nd5 Qb7 13.Bd7 Kd7 (13...Qd7 14.Nc7 Kd8 15.Na8 Qb7+–) 14.Qa4 Ke6 15.Nf4 1–0. Fournier,Frederic (1990) – NN, Active, 2004. (=1.e4 b5 2.b4 c6 3.Bb2)

3.e4 Bb7 4.d4 Na6 5.a3+= Qc7 6.Be2 0–0–0 7.c4 bc4 8.Bc4 e6 9.Nd2 Qb6 10.Rc1 d5+/– 11.ed5 ed5 12.Bb3 Nf6 13.Ne2 Re8 14.0–0 Bd6 15.Nc3 Nc7 16.Na4+/– Qb5 17.Nc5 Ba6? 18.Ba4+– Qb6? 19.Na6 Na6 20.Rc6 Qc6 21.Bc6 Re7 22.Qa4 Ng4 23.Qa6 Kd8 24.f4 g5 25.h3 Ne3 26.Re1 Bf4 27.Nf3 Rg8 28.Qa5 Bc7 29.Qb5 g4 30.Ne5 gh3 31.Re3 hg2 32.Qd5 Kc8 33.Bb7 Kb8 34.Nc6 Kb7 35.Ne7 (35...Kb8 36.Nc6 Kc8 37.Na7 Kb8 38.Nc6 Kc8 39.Qf5 Kb7 40.Qb5 Bb6 41.Re7 Ka8 42.Qa4 Ba7 43.Qa7#; 35.Re7 Kb6 36.Qa5 Kc6 37.Rc7 Kd6 38.Qe5#) 1–0. 73DADDELDU37 – Hobbykegler, mySchach.de, 2005.

3.e4 d5= 4.ed5 Qd5 5.d4 Bf5 6.Nc3 Qe6 7.Nge2 f6 8.d5+/– Qd6 9.Nd4 Qb4 10.Rb1+/– cd5?? 11.Nf5+– g6 12.Qd5 (12...a6 13.Qa8+–; better is 12.Bb5!? Kf7 13.Qd5 e6 14.Qa8 ef5 15.Qb8 Qe7 16.Be2 Kg7+–) 1–0. Wall,Bill – Guest8209, Internet, 2003.

3.e4 d6 4.a4 Bd7 (4...ba4 5.Ra4 e5 6.d4+=) 5.ab5+/– cb5 6.Nf3 Qc7 7.Nc3 Qb7 8.d4 Nf6 9.d5 e5 10.Bd3 Na6 11.Ra5 Nc7 12.Qe2 Rb8 13.0–0 Be7 14.Rfa1 Ra8 (better is 14...a6!?+/–) 15.Nb5+– Nb5 16.Bb5 Bb5 17.Rb5 (17.Qb5?! Qb5 18.Rb5 Ne4+/–) 17...Qd7 18.Rba5 0–0 19.Qe3 Ng4 (19...Qg4 20.Ra7 Ra7 21.Qa7 Qe4 22.Qe7 Qc2 23.Be5 de5 24.Qe5+– (24.Ne5?! Nd5 25.Qd6 Qb2+=)) 20.Ra7 Ne3 21.Rd7 Ra1 (21...Nc4 22.Ra8 Ra8 23.Re7 Nb2 24.Kf1+–) 22.Ba1 Nc2 23.Re7 (23.Be5 de5 24.Re7 Ra8+–) 23...Na1 24.b5 (24.Rd7!? Rc8 25.Kf1 Rc1 26.Ke2 Rc2 27.Kd3 Kf8+–) 24...Rc8 25.Ng5?? (better is 25.h3 Kf8 26.Rd7+–) 25…Rc1 0–1. Taulien,Hans_Juergen – Fritz,Marco, remoteschach.de, 2001.

3.e4 Nf6 4.Nc3 a6 5.e5 Ng8 6.Nf3 d6 7.ed6 Qd6 8.Ne4 Qb4 9.Qe2 Qb2 10.Rd1 Qa2 11.Nd6 Kd7 12.Nf7 Nf6 13.Qd3 Kc7 14.Qd8 Kb7 15.Nd4 Qf7 16.Bb5 ab5 17.Nb5 cb5 18.0–0 Rg8 19.Rb1 Qc4 20.d3 Qc2 21.Rb5 Ka7 22.Qa5 Na6 23.Qb6 1–0. guest1818 – guest186, ICS blitz, 2001.

3.a4 ba4

4.Ra4 d6 +=.

4.Ra4 e6 5.e3 (5.e4 d5+=) 5...Nf6 6.Nf3 Nd5 7.c3 f6 (7...Be7 8.d4+=) 8.d4+= Nb6 9.Ra5 d5 10.Nbd2 (10.Bd3 Bd6+/–) 10...Bd6 (10...N8d7 11.e4+=) 11.Bd3 N8d7 12.0–0 f5 (12...e5 13.e4+=) 13.Qa1 Qc7 14.Qa2 (14.Qa3 0–0+/–) 14...Ke7 (14...0–0 15.Ra1+/–) 15.Ra1+/– Bb7 (15...e5 16.de5 (16.Ra7 Ra7 17.Qa7 e4–/+) 16...Ne5 17.Ne5 Be5 18.Nf3+–) 16.Qb3 (16.Ra7? Ra7 17.Qa7 Ra8–+) 16...Nc8 17.c4 Qd8 18.Qc3 Rg8 (18...Kf7 19.Nb3+/–) 19.Nb3 Bc7 (19...Rb8 20.Nc5+–) 20.R5a2 dc4 (20...Rb8 21.Nbd2+–) 21.Bc4 Nd6 (21...Ncb6 22.Nbd2+– (worse is 22.Ra7 Ra7 23.Ra7 Qb8+/–)) 22.Ng5 Nb5 (22...Nf8 23.Nc5 (23.Ra7?! Ra7 24.Ra7 Qb8+/–) 23...Nc4 24.Qc4+– (worse is 24.Nb7 Qd5+–)) 23.Qd3 (23.Qe1 Nf8+–) 23...Nf8 24.Nc5 (24.Bb5?! cb5 25.Nc5 Qb8 26.Nb7 Qb7+/–) 24...Bc8 25.e4 h6 (25...Nd6 26.Ra7 Ra7 27.Ra7+–) 26.Nf3 f4 (26...Nd6 27.Ne5 Ke8 28.Nc6 fe4 29.Qb3+– (29.Nd8?! ed3 30.Nde6 Ne6 31.Be6 Be6 32.Ne6 Bb6+–; worse is 29.Ne4 Qh4 30.Nd6 Bd6+–)) 27.Bb5 cb5 28.Ra7 Ra7 29.Ra7 Bd7 (29...Nd7 30.Qb5 Bb6 31.Ne6 Ba7 32.Nd8 Rd8 33.Ne5 Ne5 34.Qe5 (worse is 34.de5 Rd1 35.Qf1 Rf1 36.Kf1 Ba6 37.Ke1 Ke6–/+) 34...Kf8 35.Qf4 Ke8 36.Qe5 Kf8 37.Qc7+–) 30.Nd7 (better is 30.Ne5!? Qc8 31.Qb3 Be5 32.Rd7 Qd7 33.Nd7 Nd7 34.de5 Rc8+–) 30...Nd7 31.d5 (31.d5 Bb8 32.Nd4 Ba7 33.Nc6 Kd6 34.Nd8 Rd8 35.Qb5 ed5 36.ed5+–) 1–0. Schirmer,Michael – Andersson,Lars H, email 4AMM–F, 1998.

4.Ra4 Nf6 5.Nf3 +=.

3.e3 a5

4.a3 a4 5.Nf3 f6 6.d4 d5 7.Bd3 Bg4 8.h3 Bf3 9.Qf3 h5 10.Bg6 Kd7 11.Bf7 h4? 12.Bd5! e6 13.Ba2 g5 14.0–0 Be7 15.Qe4 Nh6 16.Be6 Ke8 17.c4 f5 18.Bf5 Nf5 19.Qf5 bc4 20.Qg6 Kd7 21.d5! cd5 22.Qf5 Ke8 23.Bh8 Nc6 24.Nc3 Rc8 25.Rad1 (25...Nb4 26.ab4+–) 1–0. Trkn – guest4875, ICC, 2005.

4.a3 ab4 5.ab4 Ra1 6.Ba1 Ba6 7.Bd4 e6 8.Na3 (better is 8.e4=) 8...Bb4?? (better is 8...Nf6 9.c3 d6=) 9.Bg7+– Ba3 10.Bh8 b4 (10...h6 11.Nf3+–) 11.Nf3 (11.Qg4!? Nh6 12.Qg7 Bf1 13.Kf1 b3 14.cb3 Bf8 15.Qh7 Qb6+–) 11...Bf1 12.Rf1 Nf6 (better is 12...d5+–) 13.Qa1 Nd5 (13...Ne4 14.Qg7 d5 15.d3+–) 14.Qg7 Ke7 (14...Qe7+–) 15.e4 Nf4 (15...Qf8 16.Qh7 Nb6+–) 16.Qg5 f6 (16...Kd6 17.Qd8 Ng6 18.Bf6 e5 19.d4 ed4 20.Nd4 Nh4 21.Qb8 Kc5 22.Nb3 Kc4 23.Qb6 Ng2 24.Kd1 Ne3 25.fe3 d5 26.Qc6) 17.Bf6 (17.Bf6 Kf8 18.Qg7 Ke8 19.Qg8#) 1–0. pierre – colly, internet, 2011.

4.a3 ab4 5.ab4 Ra1 6.Ba1 Na6 7.c3 =.

4.a3 ab4 5.ab4 Ra1 6.Ba1 Qb6 7.Nf3 e6 8.Be2 Bb4?? (better is 8...Na6=) 9.Bg7+– f6 10.Bh8 Be7 11.Nd4 e5 (11...Qc5 12.Nc3+–) 12.Bh5 Kd8 13.Nf5 (better is 13.Qg4 Nh6 14.Qg7 ed4 15.Qh6+–) 13...Bf8 (13...d5 14.Ne7 Ke7 15.Qf3+–) 14.Bf7 (14.Qg4!? Nh6 15.Bf6 Kc7+–) 14...Nh6 (14...Ne7 15.Bf6 d5 16.Ne7 Be7 17.Be5+–) 15.Nh6 Bh6 16.Bf6 Kc7 17.Be5 Kb7 (17...d6 18.Bd4 c5 19.Nc3+–) 18.Nc3 Na6 (18...Bf8 19.Qf3+–) 19.0–0 (19.Qh5 Bf8+–) 19...Nc5 (19...Qd8 20.d4+–) 20.Bd4 (20.Qf3 Bg5+–) 20...d6 21.Qa1 (21.Qf3!? Bg5+–) 21...Bf5 22.e4! Bg6 (22...Ne4 23.Bb6; 22...Be4 23.Ne4) 23.Bg6 hg6 24.Rb1 (24.Qa2 Bd2 25.Ra1 Bc3 26.Qf7 Kb8 27.Qe8 Kb7 28.Qe7 Qc7 29.Ra7 Ka7 30.Qc7 Ka8 31.Qc6 Ka7 32.Bc3 b4+–) 24...Bd2 (24...Qa6 25.Qb2 Ne6 26.Ne2+–) 25.Na4! Qa7 (25...ba4 26.Rb6; 25...Na4 26.Bb6) 26.Nc5 dc5 27.Qa7 Ka7 28.Bc5 Kb7 29.e5 Bc3 30.e6 Bf6 31.e7 Be7 32.Be7 1–0. Fournier,Frederic (1720) – arkovo, ChessOK.com, 2013.

4.a3 e6 5.Nf3 (5.a4 A) 5...Bb4?? 6.Bg7 (6.ab5?! Nf6=) 6...Ba6 7.Bh8+–; B) 5...ab4?! 6.ab5 Ra1 7.Ba1=; C) 5...Nf6=) 5...f6 (5...ab4 6.ab4 Ra1 7.Ba1=) 6.Nh4 (6.a4 d5=) 6...g6 (6...Nh6=) 7.Bd3 (better is 7.a4=) 7...Ne7?? (better is 7...ab4 8.Qf3 d5–/+) 8.Bf6+/– Rg8 9.Nc3 (9.Nf3 ab4 10.Ng5 h6+/–) 9...d5 10.0–0 (10.f4 Nd7 11.Bd4 Nf5 12.Nf5 ab4 13.Ng7 Bg7 14.Bg7 bc3 15.Bc3 e5+/–) 10...Qb6 (10...Qd6 11.Nf3 Nd7 12.e4+/–) 11.Qf3 (11.Nf3 Nd7 12.Bg5 e5+/–) 11...Nf5 (11...Nd7 12.Bg5+/–) 12.Nf5+– ef5 (12...gf5 13.Qh5 Rg6 14.Ne2+–) 13.Nd5! cd5?! (13...Qb7 14.Nc3 ab4 15.ab4 Ra1 16.Ra1 Bb4+–) 14.Qd5 (14.Qd5 Qf6 15.Bb5 (15.Qg8?! Bd7+–) 15...Bd7 16.Qa8+–) 1–0. Wall,Bill – Barsalou,Norm, internet, 2004.

4.a4 ab4 5.ab5 Ra1 6.Ba1 d6 =.

4.ba5 Ra5 5.Nf3 d5 =.

3.e4 a5

4.a4 ab4 5.ab5 Ra1 6.Ba1 cb5 7.Bb5? Qa5 –+.

4.a4 ab4 5.ab5 Ra1 6.Ba1 cb5 7.d4 =+.

3.e4 e6

4.a3 Nf6 5.Nc3 g6 6.Nf3 Bg7 7.a4 ba4 8.Na4 0–0+= 9.d3 d5 10.e5 Nh5 11.Qd2 Nd7? 12.g4+– Nhf6 13.ef6 Bf6 14.Bf6 Qf6 15.Qd1 a5 16.ba5 Ra5 17.g5 Qf4 18.d4 c5 19.Be2 cd4 20.Nb2 Ra1+= 21.Qa1 Ne5 22.Qd1 Ba6 23.Nd3 Bd3=+ 24.cd3 Nf3 25.Bf3 Qe5 26.Kf1 Qg5 27.h4 (27...Qf4 28.h5=+). thotares (1735) – LuckyMiki, internet, 2007.

4.a4+= ba4 5.Ra4 d5 6.ed5 cd5 7.Nf3 +=.

4.a4+= Ba6 5.ab5 cb5 6.Na3 Qb6 7.Qg4 f6 (7...Nh6 8.Qg5+=) 8.Nb5 (8.c3 e5+/–) 8...Bb5+= 9.Qh5 g6 10.Qb5 Qb5 11.Bb5 Bb4 12.Ne2 (12.Nf3 a5+/–) 12...Be7 (12...a5 13.c3 Bd6 14.Nd4+=) 13.Nf4 e5 (13...Kf7 14.d4+/–) 14.Nd5 Nh6?? (better is 14...Bd8+/–) 15.Nc7+– Kf7 16.Na8 Nc6 (16...Rc8 17.Ra7 Rc2 18.Rb7+–) 17.Bc6 dc6 18.Ra7 (18.Ra7 Rb8 19.Bc1+–) 1–0. Mroz,Antoni – Wilk,Bronislawa, corr Poland, 1987.

4.a4 Bb4? 5.ab5?! Bf8 +=.

4.a4 Bb4? 5.Bg7 Qh4 6.Bh8 +–.

4.a4 Qe7 5.c3 Bb7 +=.

4.f4 f5 5.ef5+/– ef5 (5...Nf6!? 6.fe6 Bb4+=) 6.Qh5+– g6?? (Better is 6...Ke7 7.a4 ba4 8.Qf5 d5 9.Qg5 Kd7 10.Qg4 Ke7+–) 7.Qe2 (7...Kf7 8.Bh8+–) 1–0. var – cumalotforme, Live Game Caissa's Web, 2004.

4.f4 Nf6 =+.

4.a3 a5

5.a4 ab4?! 6.ab5 Ra1 7.Ba1 =.

5.a4 Bb4? 6.ab5?! Qg5 =.

5.a4 Bb4? 6.Bg7 Nf6 7.Bh8 +–.

5.a4 Qh4 6.Qf3 ab4 7.ab5 Ra1 8.Ba1 cb5 9.Bb5 Bb7 =.

5.a4 Qh4 6.Qf3 Bb4? 7.ab5?! Nf6 =.

5.a4 Qh4 6.Qf3 Bb4? 7.Bg7 d5 8.Bh8 +–.

5.Nc3 ab4 6.ab4 Ra1 7.Ba1 Bb4 8.Nb5 Nf6 9.Bf6 Qf6–/+ 10.c3 Ba5 11.Nd6+/– Ke7 12.Nc8 Rc8 13.Nf3 d5= 14.ed5 cd5 15.Be2 Nd7 16.0–0 Bc7 17.Qa4 Kf8?? 18.Qd7+– Qd8 19.Qd8 Bd8 20.Nd4 g5 21.Bh5 h6 22.f4 f6 23.Ne6 Ke7 24.Nd8 Rd8 25.fg5 hg5 26.Re1 Kd6 27.Bf7 Kc5 28.Re6 Kc4 29.Bg6 Rf8 30.Kf2 f5 31.Ke2 f4 32.Bd3 Kc5 33.Bc2 g4 34.d4 Kc4 35.Rc6 Kb5 36.Rc5 Kb6 1–0. Chairboy – coolerdude, ChessWorld.net, 2005.

2.Bb2 b6

3.a4 Bb7 (--> 1.b4 b6 2.Bb2 Bb7 3.a4 c6).

3.e3 Bb7 (--> 1.b4 b6 2.Bb2 Bb7 3.e3 c6).

3.Nf3 Ba6 4.d3 h6 5.Nbd2 d5 6.g3 Nf6 7.Bg2 e6 8.a3 Bd6 9.0–0 Nbd7 10.c4 dc4 (10...0–0!?=) 11.Nc4–/+ Bc7 (11...Qc7!?–/+) 12.Nd4+– b5 13.Nc6 (13...Qc8 14.N4a5+–) 1–0. Wall,Bill – DeepThoughts, Internet, 2002.

3.Nf3 Bb7 (--> 1.b4 b6 2.Bb2 Bb7 3.Nf3 c6).

3.f4 a6 4.e3 d6 5.Nf3 e6 6.d4 f6 7.Bd3 g6 8.Nbd2 h6? 9.Bg6+– Ke7 10.0–0 Qe8?? 11.Be8 Ke8 12.c4 Bg7 13.Nh4 Nd7 14.Qh5 Kd8 15.Qg6 Ne5 16.Qg7 Nf3 17.Ndf3 Ra7 18.Qh8 Bd7 19.Qg8 Kc7 20.e4 f5 21.e5 de5 22.Ne5 c5 23.Nd7 Kd7 24.Qg7 Kd6 25.Qa7 cd4 26.Qb6 Kd7 27.Bd4 e5 28.Be5 h5 29.Qd6 Kc8 30.Qc7# 1–0. pokerpig (2220) – idontknow, net–chess.com, 2006.

2.Bb2 Qc7

3.e3 a5 4.b5+= e5 5.c4 (5.d4 e4+=) 5...Nf6 6.Qc2 cb5 (better is 6...Bc5=) 7.Na3?? (7.Nc3 bc4 8.Nb5+=) 7...b4?? (better is 7...Ba3 8.Ba3 d5–/+) 8.Nb5+/– Qc5 9.Nf3 d6+/– 10.d4 ed4 11.Bd4 Qc6 12.Bd3 Nbd7+= 13.0–0 Be7 14.Rac1 0–0 15.Rfd1 Nc5?? 16.Bf6+– Nd3? 17.Be7 Nc1 18.Bf8 Kf8 19.Qc1 Be6 20.Nd6 Rd8 21.Ne5 Qc5 22.Nb7 Rd1 23.Qd1 g6 24.Nc5 (24...Bh3 25.Qd8 Kg7 26.gh3 Kh6 27.Qg8 Kh5 28.Qh7 Kg5 29.f4 Kf5 30.Qf7#) 1–0. smurilo (1700) – C_D_B7, chessHere.com, 2006.

3.e3 d6 4.c4 Nd7 5.Nf3 Ngf6 6.d4 g6 (6...e5 7.Nc3=) 7.Nc3 Bg7 8.Bd3 0–0 9.0–0 e5 10.Re1 Nh5 11.g4 (11.a4 a5 12.b5 Re8+=) 11...Nhf6= 12.g5 Nh5 13.Qb3 White prepares b5 13...b6 (13...Kh8 14.Qc2=) 14.b5 Bb7 15.bc6 Bc6 16.Nd5 Qd8 17.h4 (17.Ba3 Bd5 18.cd5 Qe7=) 17...Kh8 (17...Bd5 18.cd5 f6 19.Rac1=) 18.Nd2 (18.Ba3 Re8 19.Bc2 Nf8 20.de5 Qc8=) 18...f5 19.Qa3 f4 (19...Nb8!?=) 20.Qd6+/– Bd5 21.cd5 fe3 22.fe3 Ng3 (22...ed4!? 23.Bd4 Bd4 24.ed4 Rf7+/–) 23.Bb5 Rf7 24.e4 (24.de5?! Nf5 25.Qb4 Ne5+=) 24...Bf8 (24...Rc8 25.Rac1 (25.de5 Rc2 26.e6 Bb2 27.ef7 Bd4 28.Kg2 Rd2 29.Kh3 Ba1 30.Bd7 Rf2 31.Ra1 Rf7 32.Qe5 Rg7+–) 25...Rc1 26.Rc1+– (26.Bc1?! Kg8+–)) 25.Qe6 Re7 26.Qg4 Nh5 27.d6 Rf7 28.Rf1 Rf4 (28...Rg7 29.de5 Nc5 30.Rf2+–) 29.Rf4 (29.Bd7?! Rg4 30.Bg4 Qd6 31.Bh5 gh5=; 29.Qd7 Bd6 30.Rf4 Nf4+–) 29...Nf4 (29...ef4 30.d5 Ndf6 31.Bc6+– (31.Bf6?! Nf6 32.Qe6 Nh5+–)) 30.de5 Nh5 (30...Bg7 31.Qf4 a6 32.Bc4+–) 31.Bd7 (31.Qd7 Qd7 32.Bd7 Bg7+–) 31...b5 (31...Bg7 32.Nc4+–) 32.Bd4 (32.e6 Ng7 33.e5 Rb8+–) 32...Qa5 (32...Bg7 33.Nb3+–) 33.Nb3 Qb4 (33...Qd8 34.e6 Ng7 35.Rf1 Bd6 36.Rf7+–) 34.e6 Ng7 35.e7 Be7 36.Bc5 Qc3 37.de7 1–0. Janek – Gustave, internet, 2016.

3.e3 e5 4.a3 =.

3.e3 e6 4.Nf3 Bb4?? (better is 4...d5=) 5.Bg7+– Qd8 6.Bh8 Ke7 7.Bc3 Bc3 8.Nc3 Na6 9.Ba6 ba6 10.Rb1 Qe8 11.0–0 Nf6 12.Qe2 Qf8 13.Ne5 d6 (13...Qd8 14.Qf3+–) 14.Nc6 Ke8 15.Nb8 Rb8 (15...d5 16.Na6 Kd8+–) 16.Rb8 Ke7 17.Qc4 Qd8 18.Rc8 Qc8 19.Qc8 Nh5 20.Qc7 Kf8 21.Qd8 (21.Rb1 Kg7 22.Rb7 Kh6 23.Qf7 Kg5 24.Ne4 Kh4 25.Qe7 Nf6 26.Qf6 Kg4 27.Qg5) 21...Kg7 22.Qg5 Kf8 23.Rb1 Nf6 (23...Ng7 24.Rb7 Ne8 25.Qh5 Nc7 26.Rc7 Ke8 27.Qf7 Kd8 28.Qe7) 24.Qf6 h6 (24...Ke8 25.Rb7 h6 26.Qe7) 25.Rb8 1–0. Bonetti,Shane – digimon02, ICC, 2002.

3.Nf3 a5 4.a3 ab4 5.ab4 Ra1 6.Ba1 d5 7.Be5 Qb6 8.Bb8 e6 (8...Qb4 9.Be5+–) 9.c3 Nf6 10.e3 Be7 11.Bd3 c5 12.Qa4 (12.bc5!? Qc5 13.Be5 0–0+–) 12...Bd7 13.Qa5 Qc6 (13...Qa5 14.ba5 c4 15.Bc2+–) 14.b5 Qc8 15.Bc7 c4 16.Bc2 0–0 17.b6 Nh5 (17...Ne8 18.Bf4+–) 18.Ne5 f6 (18...Nf6+–) 19.Nd7 Qd7 20.Ba4 Qc8 21.0–0 g5 22.Bc2 e5 23.Qd5 Kh8 24.Qc4 f5 25.Ba4 Nf6 26.d4 e4 27.Nd2 h5 28.Nb3 f4 29.ef4 gf4 30.Nc5 f3 31.Ne6 Rg8 32.g3 Kh7 33.d5 Ne8 34.Qe4 Kh6 35.Qf4 Bg5 36.Ng5 Rg5 37.Qf8 Rg7 38.Qe8 Qh3 39.Bf4 Kh7 40.Bc2 Rg6 41.Qg6 (41...Kh8 42.Be5#) 1–0. chrisalvin2005 – C_D_B7 (1605), chessHere.com, 2006.

3.c4 e5

4.a3 Nf6 5.e3 d5 6.d3 a5 7.c5 Be6 8.h3 Na6 (8...ab4 9.ab4 Ra1 10.Ba1+=) 9.Nf3= Nd7 10.Nbd2 Be7 11.Nb3 0–0 12.Na5 Nac5 13.Nb3 (13.bc5 b6 Double attack (13...Ra5 Deflection)) 13...Nb3 14.Qb3 d4 15.Qc2 de3 16.fe3 f6 17.e4 Qb6 18.d4 Rad8 (18...Rfe8 19.de5 Ne5 20.Ne5 fe5 21.Qf2 (21.Be5 Qe3 22.Qe2 Bh4 23.g3 Bg3 24.Bg3 Qg3 25.Kd2 Rad8 26.Kc1 Qc3 27.Kb1 Rd2 28.Qd2 Qd2–+) 21...Bb4 22.ab4 Qb4 23.Qd2 Qe4 24.Qe2 Ra1 25.Ba1+=) 19.Bc4= Bc4 20.Qc4 Kh8 21.0–0 Bd6 22.Kh1 Rfe8 23.Bc3 ed4 24.Bd4 Qc7 25.Rae1 Bg3 26.Re2 Ne5 27.Ne5 Be5 28.Bg1 Rd7 29.b5 cb5 30.Qb5 Qc6 31.Qb1 Qa6 32.Ra2 Rd3 33.a4 Bd4 34.Bd4 Rd4–/+ 35.Re1 Ra4 36.Ra4 Qa4 37.Qb7 h5 38.Qf7 Qb5 39.Re3 Re5 40.Rg3 Rg5 41.Qb3 Qf1–/+ 42.Kh2 Qf4 43.Qf3 Qg3 44.Qg3= Rg3 45.Kg3 Kg8 46.Kf4 Kf7 47.h4 Ke6 48.g3 g6 49.Kf3 Ke5 50.Ke3 ½–½. Babichev,Vyacheslav (1765) – Koegler,Christian, Nuremberg–ch op, 2003.

4.Nf3 Bb4?? 5.Be5 d6 6.Bg7 +–.

4.Nf3 d6 5.Nc3 Nf6 6.e4 Bg4 7.a3 Nbd7 8.d4 g6 9.d5 Bg7 10.h3 Bf3 11.Qf3 0–0 12.dc6 bc6 13.Rd1 a5 14.b5 Nc5 15.Be2 Rab8 16.0–0 Nb3 17.Na4+/– cb5 18.cb5 Nc5 19.Nc5 dc5 20.a4 c4? 21.Rc1+– Rfc8 22.Bc4 Qc4 23.Rc4 Rc4 24.Be5 Rb6 25.Qd3 Rc8 26.Bc7 Re6 27.b6 Ne4 28.b7 Rc7 29.b8Q (29...Rc8 30.Qc8 Bf8 31.Qdd8 Kg7 32.Qf8 Kf6 33.f4 g5 34.Qcd8 Kg6 35.Qg8 Kh6 36.Qdg5 Ng5 37.Qg5#) 1–0. pierre (1665) – C_D_B7, chessHere.com, 2006.

2.Bb2 d6

3.a3 c5 4.bc5 dc5 5.e3 e6 6.Nf3 f6 (6...Nf6 7.Nc3=) 7.Bc4 e5 8.d3 f5?? (better is 8...Nd7+=) 9.Ne5+– (9.Be5?! Nc6+–) 9...Qe7 (9...Nh6+–) 10.Nf7 (better is 10.Qh5 g6 11.Ng6 hg6 12.Qg6 Kd7 13.Qf5 Kd8 14.Qd5 Nd7 15.Bh8 Ngf6+–) 10...Qf7 11.Bf7 Kf7 12.Qf3 Kg6 13.Qg3 Kf7 14.0–0 Be7 15.Nd2 g6 16.Bh8 Nh6 17.Bb2 Bd6 18.Qh3 g5 19.Qh6 Ke7 20.Qh7 Ke6 21.Qg7 Kd5 22.Nf3 Kc6 23.c4 Kb6 24.Qf6 Ka5 25.Qd6 Ka4 26.Qc5 a6 27.Qb4 1–0. Fournier,Frederic (2000) – superman55 (1630), Echecs21 (1/1), 2003.

3.a3 Nf6 4.e3 e5 (--> 1.b4 e5 2.Bb2 Nf6 3.a3 d6 4.e3 c6).

3.b5 cb5 4.e4.

3.b5 d5 4.e3 cb5 5.Bb5 Bd7 6.a4 Bb5 7.ab5 Qb6 8.Qg4 Qb5?? (8...Nd7 9.Bg7) 9.Qc8 1–0. Wall,Bill – Guest524476, playchess.com, 2012.

3.c3 a6 4.e3 (4.d4 Nf6=) 4...Nf6 5.d4 Nbd7 6.Bd3 (6.c4 e5=) 6...b5 (6...e5!?+=) 7.Nf3= Bb7 8.a3 (8.0–0 c5+=) 8...g6 (8...e5 9.Bf5=) 9.0–0 Bg7 10.Nbd2 0–0 11.Qc2 e5 (11...c5 12.dc5 dc5 13.c4+=) 12.de5 de5 13.Ne4 (better is 13.c4!? Qe7 14.e4+=) 13...Ne4+= 14.Be4 Rb8 (better is 14...f5!? 15.Qb3 Kh8+=) 15.Rad1= c5 (15...Qe7 16.Qe2=) 16.Bb7 Rb7 17.Rd2 (17.Rd6 Qe7 18.Ra6 e4+=) 17...c4 18.Rfd1 Rc7 (better is 18...Qe7=) 19.Rd7?? (better is 19.e4+=) 19...Rd7–+ 20.Rd7 (20.Re1 Qf6–+) 20...Qd7 21.g3 Rc8 22.Ne1 Kh8 23.f3 f5 24.Kf2 e4! 25.f4 Rd8 26.Kg2 Qc6 27.h3 Rd3! 28.Nd3 cd3 29.Qd2 Qc4 30.Kf2 h5 31.Bc1? Kh7 32.Qe1?? Bh6 33.Kg2 Bg7 34.Kf2 Qc3 35.Qc3 Bc3 36.Kf1 d2 37.Bd2 Bd2 38.Ke2 Bb4! 39.ab4 Kg7 40.g4? Kf6 41.gh5 gh5 42.h4 (42.h4 Ke6 43.Kd2–+). Fournier,Frederic (1930) – maxoflaxia (1660), Active, 2009.

3.c3 e5 4.d4 +=.

3.c4 Qc7 4.e3 e5 5.Nf3 Bg4 6.Be2 Nf6 7.d3 Be7 8.Nbd2 0–0 9.h3 Bh5 10.0–0 h6 11.a3 Re8 0–1. Fournier,Frederic (1620) – chessfreek, Partie evaluee, 2007.

3.c4 e6 4.a3 f6 (4...Nf6 5.e3=) 5.e3 g6 6.Nf3 b6 7.d4 h6 (7...a5 8.ba5 Ra5 9.Bd3+=) 8.Bd3+/– a6? (better is 8...Ne7!?+/–) 9.Bg6+– Kd7 10.Bd3 Ne7 11.g3 (11.d5 e5+–) 11...Bg7 12.Nbd2 Rg8 (12...Ke8 13.Nh4+–) 13.0–0 (13.c5 Bb7+–) 13...f5 (13...Ke8 14.Qc2+–) 14.c5 bc5 15.dc5?? (15.bc5 dc5 16.Ne5 Kc7+–) 15...d5?? (better is 15...Bb2 16.Ra2 Bf6–/+) 16.Bg7 Rg7 17.Ne5 Kc7 18.Ndf3 Nd7 19.Nd7 Bd7 20.Ne5 Ng6 21.Nd7 Qd7 22.Qh5 Ne5 23.Be2 Rh7 24.f4 Nf7 25.Qg6 Nh8 26.Qf6 Rg8? 27.Ba6 h5 28.Qe5 Kd8 29.Qb8 Ke7 30.Qg8 Kf6 31.Qg5 Kf7 32.a4 Ng6 33.b5 h4 34.bc6 Qc6 35.Bb5 Qc7 36.c6 hg3 37.hg3 Qb6 38.Rae1 d4 39.ed4 Qd4 40.Rf2 Rh2 41.Ref1 Qe3 42.Kh2 Nf4 43.gf4 Qe4 44.c7 Qc2 45.Rc2 e5 46.c8Q ef4 47.Qf4 Kg6 48.Qff5 Kh6 49.Qh8 1–0. Fournier,Frederic (1725) – Jus2 (1740), Active, 2007.

3.c4 f6 4.a3 e5 5.e3 a6 (5...a5 6.b5=) 6.Nf3 Ne7 7.Be2 Nd7 (7...e4 8.Nd4+=) 8.0–0 g6 (8...d5 9.d4 e4 10.Nfd2+=) 9.Nc3 Bg7 10.d4 0–0 11.de5 de5 12.Qc2 h6 (12...b6 13.Rfd1+/–) 13.Rad1 b5 (13...a5 14.b5+/–) 14.cb5 ab5 15.Rd2 Bb7 (15...f5 16.a4+/–) 16.Rfd1 Bc8 17.Ne4 Qe8?? (better is 17...Ra7+/–) 18.Nd6+– Qd8 19.Nc8 Nd5 (19...Qc8 20.Rd7 Nd5+–) 20.Qc6 Rc8 (20...Qc8 21.Qd5 Rf7 22.Qb5 Nf8+–) 21.Qd5 Kh8 22.Qd7 Qd7 23.Rd7 1–0. Fournier,Frederic – The Bug, Partie evaluee, 2007.

3.e3 a5 4.b5 c5 5.Be2 a4 6.c4 Nd7 7.Nf3 Ngf6 8.0–0 e5 9.d4 cd4 10.ed4 ed4 11.Bd4 Be7 12.Nc3 0–0 (12...Nc5 13.Qc2+=) 13.Na4+/– Qa5 14.Nc3 Re8 15.Re1 Nc5 16.Nd2 Be6 17.Bf3 Nfd7 18.Nb3 Qb4 19.Nd5 Bd5 20.Bd5 (20.cd5?! Bf6 21.Re8 Re8 22.Bf6 Nb3 23.ab3 Nf6+=) 20...Bf6 (better is 20...Nb6!?+/–) 21.Nc5+– dc5 22.Re8 Re8 23.a3 Qa5 24.Bf6 Nf6 25.Bb7 Rd8 26.Qb3 h5 27.Bf3 1–0. Buedding,Karl_Heinz – Nilsson,Thorbjorn (1930), corr ICCF EM/H/007 ICCF Email, 1999.

3.e3 b5 4.a4 Bb7 5.ab5+/– e5 6.d4 e4 7.bc6 Nc6 8.c4 Qd7 9.b5 Nce7 10.Nd2 f5 11.d5 Nf6 12.Bf6 gf6 13.Qh5 Ng6 14.Ne2 Kd8 15.Nd4 Ne7 16.Qh4 Bg7 17.Ne6 Qe6 18.de6 Kc7 19.c5! dc5 20.Qf4 Kc8 21.Qd6 Bf8 22.Nc4 Nd5 23.Qd7 Kb8 24.Na5 Ne7 25.Qb7# 1–0. pierre – rla, internet, 2007.

3.e3 Qc7 4.Nf3 e5 5.c4 e4 6.Nd4 Nf6 7.Nc2 Nbd7 8.d4 d5 9.Nc3 a5 10.b5= dc4 11.Bc4 Nb6 12.Be2 c5 13.0–0 Be6 14.dc5 Nc4 15.Bc4 Bc4 16.b6 Qc5=+ 17.Na4 Qb5 18.Nd4 Qg5 19.f4 Qg6 20.Re1 Bb4 21.f5 Qh6 22.Nc3 0–0–/+ 23.Nc2 Rfd8–+ 24.Qc1 Bd6 25.h3 Qg5 26.Nd4 Rac8 27.Ba3 Be5 28.Be7 Qg3 29.Nce2 Be2 (30.Ne2 Qh2 31.Kf2 Rc1 32.Rac1 Re8–+) 0–1. Dopper,Johan – Van Geemen,A, corr, 1989.

3.e3 Be6 4.a4 Nd7 5.Nf3 Ngf6 6.c4 g6 7.b5 c5 8.Nc3 Bg7 9.Be2 0–0 10.0–0 Nb6 11.d3 d5 12.a5+/– Nc8 13.Qb3 d4 14.ed4 cd4 15.Nb1 Ng4 16.Nbd2 Nh6 17.Ne4 Nf5 18.Nc5+/– Ncd6 19.Ne6+– fe6 20.c5 Nf7 21.Qe6 Qe8 22.c6 bc6 23.bc6 Rc8 24.Rac1 Qd8 25.Rc5 Qd6 26.Qc4 Rc7 27.Rc1 Rfc8 28.Ng5 Qf6 29.Ne6 N7d6 30.Qb3 Qf7 31.Bf3 Nh6 32.Bd5 Ne8 33.Ng7 Ng7 34.Bf7 Nf7 35.Bd4 Ne8 36.Ba1 Rd8 37.Qc3 Rd6 38.Rb1 Rd8 39.Rb7 Rdc8 40.Rc7 Rc7 41.Rb5 (41...Rc8 42.Rb7+–) 1–0. O'Harney,Robert – Ball,Anthony, Brampton op, 2000.

3.e4 e5 (--> 1.b4 e5 2.Bb2 d6 3.e4 c6).

3.e4 f5 4.Bd3 Nf6 5.ef5+/– e6 6.fe6 Be6 7.Bf5?? Bf5–+ 8.Qe2 Be7 9.Bf6 gf6 10.Nf3 Rg8 11.0–0 Bh3 12.Ne1 d5?? 13.Qh5+/– Kf8 14.Qh3 Bd6 15.Qh7 Na6 16.a3 c5? 17.Qb7 f5?? 18.Nf3 Qf6 19.Qa8 Kf7 20.Qa7 Kf8 21.d4 cd4 22.Qa8 Nb8 23.Qd5 d3 24.c3 Nd7 25.g3 Nb6 26.Qd3 Na4 27.Nd4 Nb2 28.Qe2 Be5 29.Qb2 f4 30.Kg2 fg3 31.fg3 Bf4 32.Ne2 Qc6 33.Rf3 Rg4 34.c4! Qc4 35.Nf4 Kf7 36.Nc3 Kf6 37.Ncd5 Kg5 38.Qf6# 1–0. 73DADDELDU37 – Hobbykegler, mySchach.de, 2005.

3.e4 Nf6 4.Nc3 e5 5.Nf3 Qb6 6.a3 Be7 7.d4 ed4 8.Qd4 0–0 9.Be2 c5 10.Qd3 cb4 11.Na4 Qc7 12.ab4 Nc6 13.c3 a6 14.Qe3 Bd8 15.Bc1 Re8 16.Nd2 d5 17.f3 d4 18.Qd3 dc3 19.Qc3 Be7 20.Bb2 Bb4 21.Qe3 Qa5 22.Nc3 1–0. Luzuriaga,Norberto Horacio – Pleschke,Helmut, email, 2000.

3.Nf3 Nd7 4.e3 Ngf6 5.c4 g6 6.Be2 Bg7 7.0–0 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.Be2 d6 7.0–0 Nbd7).

3.Nf3 e5 (--> 1.b4 e5 2.Bb2 d6 3.Nf3 c6).

3.f4 Bf5 4.Nf3= Nd7 5.d3 (5.e3 e5= (5...Ngf6 6.Be2 Qb6 7.a3 c5 8.Bf6) 6.Be2 ef4 7.ef4 Qb6 8.a3; 5.Nc3 Ngf6 6.Nh4 Be6 7.e4 Bg4 8.Nf3; 5.Nd4 Bg4 6.h3 Bh5 7.g4 e5 8.Nf3) 5...Ngf6 (5...d5 6.a3= e6 7.Nc3 Ngf6 8.e3; 5...e5 6.e4 Bg4 7.h3 Bf3 8.Qf3) 6.e4= Bg4 7.h3 Bf3 8.Qf3 e5 9.g3 (9.Nd2 a5=) 9...Be7 10.Nd2 a5 11.c3 (11.a3 ab4 12.ab4 Ra1 13.Ba1 Qa8+=) 11...d5 12.a3 0–0 (12...Bd6 13.Be2=) 13.Be2 (13.Bg2 Qb6+=) 13...Qc7 14.0–0 Rad8 (14...Rfe8 15.Kg2=) 15.f5 (15.ed5 cd5 16.fe5 Ne5=) 15...Nb6 (15...Qb6 16.Kg2=) 16.Rad1 (16.Rfb1 Na4+=) 16...Rd7 17.g4 de4 (17...Rfd8 18.Bc1+=) 18.de4= Rfd8 19.Bc1 ab4 20.ab4 Ne8 (20...h6 21.Nb3=) 21.Qg2 Na4 22.Nb1 c5 23.Rd7 Qd7 24.Rd1? Qc7?? 25.Bd2 cb4–/+ 26.cb4 Bb4 27.Be3 Rd1 28.Bd1 Bc5 29.Qf2?? Be3 30.Qe3 Qc5 31.Kf2–/+ Qe3 32.Ke3 Nc5 33.Nc3 Nd6 34.Bc2 b5 35.Nd5 f6 36.h4 Kf7 37.h5 b4 38.Nb4= h6 39.Nd5 Ke8 40.Nb6 Kd8 41.Nd5 Nc4 42.Ke2 Kd7 43.Bd3 Nd6 44.Ke3 Nb3 45.Ba6 Kc6 46.Bd3 Nc5 47.Ne7 Kb6 48.Nd5 Ka5 49.Bc2 Kb5 50.Nc7 Kb4 51.Bd3 Ka3 52.Nd5 Kb2 53.Nb6 Kc1 54.Nd5 Kd1 55.Nc3 Ke1+= 56.Nd5? Nd3–+ 57.Kd3 Kf2 58.Ne3 Kf3 59.g5 hg5 60.Nc4 Nc4 (60...Nc4 61.Kc4 Ke4–+) 0–1. Lingnau,Diethard – Sikorski,Thomas (1710), Duisburg Grossenbaum op, 2004.

3.g3 e5 4.Bg2 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.g3 Nf6 4.Bg2 c6).

3.a3 e5

4.c4 f5 5.e3 g6 6.d4+= Bg7 7.de5 de5 8.Nf3 (8.Qd8!? Kd8 9.Nf3+=) 8...Qd1= 9.Kd1 Ne7? (better is 9...Nd7!?=) 10.Be5+/– Be5 11.Ne5 Nd7 12.Nd7 Bd7 13.Be2 0–0–0 14.Kc2 Be6 15.Nc3 g5 16.Rhd1 Ng6 17.Rd8 Rd8 18.Rd1 Rd1 19.Bd1 (19.Kd1 Kd7+/–) 19...Ne5 (better is 19...Bc4!? 20.Bh5 g4=) 20.c5+/– Nc4 21.Nb1 f4 22.ef4 gf4 23.Be2 Kd7 24.Bc4 Bc4 25.g3 fg3 26.fg3 Be6 27.Nd2+– Bh3 28.Kd3 Bf5 29.Ke3 Ke6 30.Kf4 Bh3 31.Nf3 Bg2 32.Ng5 Kd5 33.Nh7 Kc4 34.g4 Kb3 35.g5 Ka3 36.g6 Bd5 37.Nf6 Bc4 38.h4 Kb4 39.h5 Kc5 40.h6 a5 41.h7 a4 42.h8Q a3 43.Qf8 Kb5 44.Qa3 c5 45.Ne4 Kc6 46.Nc5 b5+– 47.Nd3 Bd3 48.Qc3 Bc4 49.Qd3 Kb6 50.g7 Ka5 (50...Ka5 51.Qc3 Ka4+–). Fournier,Frederic – Apollonas, Partie evaluee, 1m + 0s, 2007.

4.e3 Nf6 (--> 1.b4 e5 2.Bb2 Nf6 3.a3 d6 4.e3 c6).

3.Nc3 Nf6

4.e3 e5 5.d4 Nbd7 6.a3 Be7 7.Nf3 0–0 (7...e4 8.Nd2= d5 9.Be2 0–0 10.0–0 Qc7 11.h3 Bd6 12.b5) 8.Be2 (8.Bd3 a5= (8...Qc7 9.0–0 a5 10.Qc1 b5 11.h3 Nb6 12.Rd1) 9.0–0 Qc7 10.Re1 d5 11.e4 ed4 12.Nd4) 8...Qc7 (8...e4 9.Nd2= d5 10.Nb3 Bd6 11.0–0 Qc7 12.g3; 8...a5 9.0–0 e4 10.Ng5 d5 11.Qd2 b5 12.h4) 9.0–0 (9.e4 a5= (9...h6 10.0–0 Nb6 11.Qd3 Be6 12.Nd2) 10.0–0 b5 11.Qd2 Bb7 12.h3) 9...e4=/+ 10.Nd2 d5 11.Nb3 (11.b5 Bd6 12.h3) 11...Bd6 12.h3 (12.g3+= –0.49) 12...Re8 13.b5 Nf8 (13...a6 14.a4+=) 14.bc6 bc6 15.Na4 (15.Rb1 Qe7+=) 15...Qe7=/+ 16.Nac5 N6d7 (16...Bc7 17.Na6 Ba6 18.Ba6+=) 17.Na4 (17.c4!?=) 17...Bc7 18.g3 (18.c4 Nb6 19.Nb6 ab6–/+ (worse is 19...Bb6 20.cd5 cd5 21.Rc1=)) 18...Nf6 (18...Nb6 19.Nb6 ab6 20.Kg2–/+) 19.Kg2=/+ Ne6 20.Rh1 Rb8 21.Bc1 Bd6 22.Na5 Bd7–/+ 23.c4 Ng5 24.c5 Bc7 25.Nb3 Be6 26.h4–/+ Nf3 27.Nd2 Nd2 28.Bd2 Qd7 29.Ra2 Bg4 30.Bc3 h5 31.Qd2? Qf5 32.Qd1–/+ Be2 33.Qe2 Rb3 34.Rc1 Reb8 35.Bb4 Ng4 36.Re1 Qg6 37.Bc3 Nh6 38.Rg1 Re8 39.Qd1 Reb8 40.Qe2 Nf5 41.Kh3?? Rb1–+ 42.Be1 R8b3 43.Rg2 Qe6 44.Kh2 Nh4 45.Kh1 Nf3 46.Rh2 Re1 47.Qe1 Ne1–+ 0–1. Sviridov,Valentin – Antonov,Vladimir, Hornicky Kahanec, 1980.

4.e4 e5 =.

3.c4 a6

4.d4 Bf5 5.Nc3 Nd7 (5...Nf6 6.Nf3=) 6.e4+= Bg6 7.Bd3 e5 8.d5 c5 9.a3 Ngf6 10.Nge2 b6 11.Ng3 h5 (11...Be7 12.0–0+=) 12.h4 (12.0–0!?+/–) 12...Be7= 13.Qd2 (13.Nf5 0–0=) 13...Ng4 14.Be2 (better is 14.Nf5 Bf5 15.ef5 Bh4 16.Ne4=) 14...0–0 (better is 14...Bh4 15.Bg4 hg4=+) 15.Bg4+/– hg4 16.h5 Bh7 17.Nf5 (better is 17.Qe2!?+/–) 17...Bg5 18.Qe2 Nf6 19.Nd1 (19.h6 Bf5 20.hg7 Kg7 21.ef5 Rh8+=) 19...Bf5 20.ef5 Re8 21.Ne3 Be3 22.Qe3 Kh7 (22...Qc8 23.Qg5 Ne4 24.Qg4+/–) 23.Kd2 (23.bc5 bc5 24.h6 Rb8+/–) 23...cb4 24.ab4 b5 25.Rhc1?? bc4–/+ 26.Rc4 Nd5 27.Qe4 Nf6 28.Qe2 d5 29.Rc6 Ne4 30.Kc2? Qg5 31.Rd1 Qf5 32.Kc1?? Qf2 33.Qf2 Nf2 34.Rd5 f6 35.Rd7 Red8 36.Rcd6 Rd7 37.Rd7 Ne4 38.Kc2 Rc8 39.Kd3 Ng5 40.Rd6 Rb8 41.Bc3 Ra8 42.Bd2 Nf7 43.Rd7 Rd8 44.Rd8 Nd8 45.Kc4 g5 46.Kc5 a5?? 47.ba5+– Nb7 48.Kb6?? Na5= 49.Ka5 Kh6 50.Kb5 Kh5 51.g3 f5–+ 52.Kc4 f4 53.Be1 e4 54.Kd4 ½–½. alaamattar (2190) – sportingmad (2010), net–chess.com, 2006.

4.e3 Nf6 5.Nf3 Bg4 6.Be2 e6 7.Nc3 g6 8.h3 Bf3 9.Bf3 Bg7 10.0–0 0–0 11.d4 d5 12.a4 Qb6 13.Qb3 Nbd7 14.a5 Qc7 15.Rfe1 dc4 16.Qc4 Nd5 (better is 16...Ne8!?+/–) 17.Nd5+– ed5 18.Bd5! Nf6 (18...cd5 19.Qc7 Pinning (19.Qc7 Deflection)) 19.Bf3 Rad8 20.e4 Rfe8 21.g3 Qe7 22.Kg2 Rd7 23.Bc3 Red8 24.d5! cd5 25.ed5 Qd6 26.Be5 Qf8 27.Rad1 Rc8 28.Qb3 Qd8 (28...Ne8 29.Bf4 Nd6 30.Rc1+–) 29.d6 Ne8 (29...h6+–) 30.Bg4 Be5 (30...Bf8 31.Re4 Rc6 32.Bd7 Qd7+–) 31.Re5 Rd6 32.Re8! Qe8 33.Rd6 Rd8 (33...Rc7 34.Qd5 Kg7 35.Qd4 Kh6 36.Qf4 Kg7 37.Re6+–) 34.Rb6 1–0. Janek – Mahmoud, internet, 2016.

3.c4 Qb6

4.a3 a5 5.Qa4 =.

4.a3 a6 5.e3 c5 6.b5 (6.Nc3 Nf6=) 6...ab5 7.cb5 Bd7 8.Nc3 Nf6 9.Nf3 Bg4 10.Be2 Bf3 11.Bf3 Nbd7 (11...e6 12.e4=) 12.0–0 (12.a4 Ne5 13.Be2 e6+=) 12...Ne5 (12...e6 13.d4=) 13.Be2+= d5 (13...e6 14.d4 Ng6 15.dc5 dc5 16.Rc1+/–) 14.a4 (14.Nd5 Nd5 15.Be5 e6+–) 14...e6 (better is 14...Ng6!?+=) 15.Nd5!+/– Nd5 (15...ed5 16.Be5 Discovered attack; 15...Nd5 16.Be5 Discovered attack) 16.Be5 f6 17.Bb2 Qc7 18.Qb3 (18.Bh5 Kd8+–) 18...b6 (18...Bd6 19.f4+–) 19.e4 Nf4 20.Bf3 (20.Bc4 Qd7+–) 20...e5+/– 21.g3 (21.Qc4 Qd6+/–) 21...Nh3 (21...c4 22.Qc2 Nd3 23.Bh5 g6 24.Be2+/–) 22.Kh1 Bd6?? (better is 22...Ng5+/–) 23.Qe6+– Qe7 24.Qh3 h5 25.Qf5 h4 26.Bh5 Kf8 27.Bg4 hg3 28.fg3 Kf7 29.Rf2 g6 30.Qf3 Rh2 31.Rh2 f5 32.ef5 Kg7 33.fg6 Rh8 34.Rh8 Kh8 35.Qf7 Qf7 36.gf7 Kg7 37.Be6 Kf8 38.g4 Ke7 39.Bd5 Kf8 40.g5 Kg7 41.Rg1 1–0. Fournier,Frederic – piecefighter, Active (5/0), 2005.

4.a3 e5 5.e3 Nf6 6.d4 c5 7.Nf3 cb4 8.Qa4 Nc6 (better is 8...Bd7!? 9.Qb4 Qb4 10.ab4 e4=) 9.d5+/– Be7? (better is 9...Qa5!? 10.Qa5 Na5 11.ab4 Nb3+/–) 10.dc6+– bc6 11.ab4 Nd7 (11...0–0 12.Be2+–) 12.Bd3 0–0 13.0–0 Bb7 (13...f5 14.Rd1+–) 14.Nbd2 Nc5 (14...Rfb8+–) 15.bc5 Qb2 (15...Qc5 16.Rfb1 Qb6 17.Be5+–) 16.Rfb1 Qc3 (16...Qa1 17.Qa1 Rfb8 18.cd6 Bd6 19.Ne5 Be5 20.Qe5+–) 17.Ra3 Qa3 18.Qa3 Bc8 19.cd6 Bd8 (19...Bf6 20.Qc5 Be6 21.Ne4+–) 20.Be4 a5 21.Ne5 Be6 22.Bc6 Rc8 23.Bd7 (better is 23.Bb7 Rb8 24.Nc6 Bf6 25.Nb8 Rb8 26.Qa5 h6+–) 23...Bd7 24.Nd7 Re8 25.Nf6! gf6 (25...Bf6 26.d7) 26.d7 Re3 1–0. PassedPawn – Tricky.1, ChessWorld.net, 2005.

3.c4 Nd7

4.a4 Ngf6 5.e3 (5.d4 e5+=) 5...g6 (5...e5 6.d4+=) 6.Nf3 (6.d4 Bg7=) 6...Bg7 (6...e5 7.Nc3=) 7.Qc2 (7.d4 a5 8.b5 cb5 9.ab5 Qc7=) 7...0–0 (7...a5 8.b5=) 8.h3 (8.d4 a5=) 8...Nb6 (8...a5 9.b5+=) 9.a5= Nbd7 10.d4 Re8 (10...b6 11.g4=) 11.Nc3 (11.Be2 e5=) 11...e5 12.d5 (12.de5 Ne5 13.Ne5 de5=) 12...Qc7 (12...c5 13.Nb5 e4 14.Nd2=) 13.Qb3 White prepares b5 (13.e4 c5 14.b5 Nh5+=) 13...Rb8 (13...a6 14.Be2=) 14.Be2 a6 (14...e4 15.Nd4=) 15.0–0+= b6 16.dc6 Qc6 17.b5 (17.Rfb1 Qc7 18.ab6 Qb6+=) 17...Nc5 18.Qa2 Qa8 (18...Qd7 19.ab6 Rb6 20.Rfc1=) 19.ab6 (19.Rfd1 e4 20.Ne1 Rd8+=) 19...Rb6= 20.Rfd1 Qb8 21.Ba3 ab5 22.Bc5 dc5 23.cb5 (worse is 23.Nb5 e4 24.Nd2 Ra6+=) 23...Be6 24.Bc4 (24.Qa3 e4 25.Ng5 Qe5 26.Ne6 Rbe6+=) 24...Bc4 25.Qc4 Rc8 26.Ra5 h6 27.Na4 Rd6 28.Rd6+/– Qd6 1–0. De Visser,Arno – Bergman,E, 1996.

4.d4 e5 =.

4.e3 e5 5.Nf3 Be7 6.Qc2 Qc7 7.d4 Ngf6 8.Nbd2 0–0 9.Bd3 h6 10.h3 a5 11.a3 Re8 12.0–0 Bf8 13.Ne4 Ne4 14.Be4 Nf6 15.de5 de5 16.c5 Bd7 17.g4 ab4 18.ab4= Ra1 19.Ra1 b6 20.cb6+/– Qb6 21.Ne5 Qb4 22.Bf3 c5 23.Rb1 Qa5 24.Nd7 Nd7 25.Qf5 Qa4 26.Bd5+/– Re7 27.Bc3 Qa3 28.Rb3 Qa4 29.Rb7+/– Nf6 30.Bf6 Rb7 31.Bb7 gf6 32.Qf6 Qe8 33.Bd5 Bg7 34.Qf5 Qf8 35.Kf1 Qe8 36.Ke1 Kf8 37.Ke2 Kg8 38.h4 Qe7 39.g5 hg5 40.hg5 Kf8 41.Qc8 Qe8 42.Qc5 Qe7 43.Qc8 Qe8 44.Qf5 Ke7 45.f4 Ba1 46.e4 Qf8 47.e5 Ke8 48.Qc8 Ke7 49.Qb7 (49...Kd8 50.Bc6 Qd6 51.ed6 Bd4 52.Qd7#; 49.Qc7 Ke8 50.Bc6#) 1–0. Blasig,Volker – Ragni,Julien, Luxembourg–chT, 1993.

4.Nf3 Ngf6 5.e3 e5 6.d3 Be7 7.Be2 0–0 8.Nbd2 (8.0–0 Qc7=) 8...Re8 (8...Qb6 9.Bc3=) 9.0–0= Qc7 10.Qc2 b6 11.Rfc1 Bb7 12.e4 Nf8 (12...Nh5 13.a3=) 13.a4 (13.Rab1 Ne6=) 13...Ng6 14.b5 c5 15.Bc3 Nd7 (15...Nf4 16.Nf1=) 16.Nf1 Nf4 17.Bd1 g6 (17...a6 18.Ne3=) 18.Bd2 Bf6 19.Ne3 Bg7 (19...a6 20.Rcb1+=) 20.Ra3 (20.g3 Ne6+=) 20...Rf8 21.a5 Rae8 22.ab6 ab6 23.Ra7 (23.g3 Ne6+=) 23...Ra8+= 24.Rca1 Ra7 25.Ra7 Ra8 26.Ra8 Ba8 27.g3 Ne6 28.Qa4 Qb8 29.Qa2 Bb7 30.Be2 Qa8 31.Qa8 Ba8 32.h4 Bb7 33.Kh2 ½–½. Fournier,Frederic (1860) – Macquet,Stephane (2010), FRA Ch (Team) N5 Senlis–Mers, 2005.

3.c4 e5

4.a3 f5 5.e3 Be7 6.Nf3 Bf6 7.d4 e4 8.Nfd2 Ne7 9.f3 (9.Be2 0–0=) 9...Bg5 10.f4 Bf6 11.Be2 0–0 12.0–0 Be6 13.Nc3 Bf7 (13...Nd7 14.Qc2=) 14.Qc2 (14.Qe1 c5 15.Nb3 cd4 16.Nd4 Nbc6=) 14...Nd7 15.Rad1 d5 16.cd5 cd5 17.Rc1 Rc8 18.Qb3 a6 19.Na4 b5 20.Rc8 Qc8 21.Rc1? ba4–/+ 22.Rc8 ab3 23.Rf8 Nf8 24.Ba6 Bh5 25.Nb3 Nd7 26.Nc5 Nb6 27.Bb7 Nc4 28.Bc1 Bf7 29.a4= Be8 30.a5 Nc6 31.a6 Na7 32.Bd5+/– Bf7 33.Bb7 Be7 34.Kf2 Kf8 35.h3 Ke8 36.g4 g6 37.g5 Kd8= 38.d5 Kc7+= 39.Ke2 Kb6 40.Ne6 Bb4 0–1. Fournier,Frederic – alboes (1625), Active, 2007.

4.d4 Nd7 5.de5 Ne5 6.e3 Bg4 7.Qa4 Be7 8.Nc3 Bf6 9.Ne4 Bh5 10.b5 Bg6 11.Nf6 Nf6 12.Rd1 Qc7 13.Be2 (13.bc6 Nc6 14.Ne2 Bh5+/–) 13...Nfd7 (13...0–0 14.Nf3=) 14.Nf3 (14.f4!? Nc5 15.Qa3+=) 14...Nc5= 15.Qa3 Nf3 16.Bf3 0–0 17.0–0 Rab8 18.Bd4 (18.Qa7?? Ra8 19.b6 Qe7–+) 18...cb5 19.cb5 Rfe8 20.Bd5 (20.Qa7 Ra8 21.b6 Qc8 22.Bb7 Nb7–+) 20...Be4 21.Be4 (21.Qa7? Ra8 22.Bc5 Ra7 (22...dc5?! 23.Qa8 Ra8 24.Be4+=) 23.Ba7 Bd5 24.Rd5 b6 25.Bb6 Qb6–+) 21...Re4 22.Qa7 Rbe8 23.Rc1 Rh4 24.g3 (worse is 24.Bc5 dc5 25.f4 Rh5+/–) 24...Rh6 (24...Rh5 25.Rfd1+/–) 25.Bc5+– dc5 26.Qc5 Qd7 27.h4 Rh4?? (better is 27...Rd6+–) 28.Rfd1 (28.gh4?! Qg4 29.Kh2 Qh4 30.Kg2 Qg4 31.Kh1 Qh4 32.Kg1 Qg4 33.Kh1 Qh4 34.Kg2 Qg4 35.Kh1=) 28...Qh3 29.gh4 Qg4 30.Kf1 (30.Kf1 Qh3 31.Ke1 Qh1 32.Ke2 Qh4 33.Rc4+–) 1–0. Fournier,Frederic (2080) – Mat_elot (1720), Chess.com (Team Breiz), 2012.

4.e3 (--> 1.b4 e5 2.Bb2 d6 3.e3 c6 4.c4).

4.e4 Nf6 5.Nc3 =+.

4.e4 Nh6 5.c5 dc5–/+ 6.b5 Qf6 7.Nf3 Qf4 8.Be5 Qe4 9.Be2 f6 10.Bc7 Nd7 11.Nc3 Qe7 12.bc6+= Ne5 13.Nd5 Nd3 14.Kf1+= Nb4?? 15.Ne7+– Be7 (16.cb7 Bb7 17.Qa4 Kf8+–). Ridgereeno – Tricky.1, ChessWorld.net, 2005.

4.Nf3 Bg4 5.e3 Nd7 6.Be2 (6.Nc3 Ngf6=) 6...Ngf6 7.h3 Bf3 8.Bf3 Be7 (8...e4 9.Be2=) 9.a3 (9.Nc3 Nb6 10.d3 0–0=) 9...0–0 (9...d5 10.cd5 cd5 11.Nc3=) 10.0–0 d5 11.cd5 cd5 12.Nc3 Bd6 (better is 12...Nb6!?=) 13.Nd5+/– e4 14.Nf6 Nf6 15.Be2 Bc7 (15...Qe7 16.Qb1+/–) 16.d3 Qd6 17.g3 Rad8 18.de4 Qd1 (18...Qe6 19.Qc2 Be5 20.Be5 Qe5 21.Bd3+/–) 19.Rad1 Rd1 (better is 19...Ne4 20.Rd4 Ng5+–) 20.Rd1 (20.Bd1?! Ne4 21.Bc2 Nd2+–) 20...Ne4 21.Bf3 (21.Rd7!? Bb6+–) 21...Nd6 22.Be5 Rd8 23.Bd6 Bd6 24.Bb7 h6 25.b5 Rb8 (25...Kf8 26.a4+–) 26.Rd6 Rb7 27.a4 Kf8 28.Kg2 Ke7 29.Rc6 Kd7 30.f4 f6 31.Kf3 Ke7 (31...Kd8 32.e4+–) 32.Ke4 1–0. Fournier,Frederic (1975) – xyxy (1865), Active (5/0), 2004.

3.c4 Bf5

4.a3 Nd7 5.Nc3 e5 6.e4 Bg6 7.Nf3 Bh5 (7...Ngf6 8.d4=) 8.d3 Be7 9.Be2 Bf6 10.0–0 Ne7 11.Rc1 h6 12.Nd2 Be2 13.Qe2 g5 (13...Bg5 14.Rc2=) 14.Nf3 Ng6 15.Rcd1 Nf4 16.Qe3 (16.Qc2 Ne6+=) 16...g4 17.Nd2 (better is 17.Ne1!?=) 17...Bg5–/+ 18.Qe1?? (better is 18.Qg3 Nf6 19.h4 gh3 20.gh3–+) 18...Nd3–+ 19.Qe2 Nb2 20.Qg4 Nd3 (better is 20...Nd1 21.Rd1 Bd2 22.Rd2 Qg5 23.Qg5 hg5 24.Rd6 Nb6–+) 21.Nf3 Nf4 (21...Nf6 22.Qh3 Nf4 23.Qf5–+) 22.g3 Ng6 23.Rd6–/+ Qe7 24.Rfd1 Rd8 25.c5 Ngf8–/+ 26.h4 Bf6 27.Qf5 Ne6–+ 28.Ne5?? Ne5 29.f4 Ng6 30.e5 Bg7 31.Qd3?! Rd6 32.cd6 Qd7 33.Ne4 0–0 34.f5 Nh4! 35.fe6 Qe6 36.gh4 Be5 37.d7 Bc7 38.Kf2 f5 39.Rg1 Kh7+= 40.Ng3? Qa2 41.Ne2 1–0. Fournier,Frederic (1780) – alboes, Active, 2006.

4.Nc3 Nf6 =+.

4.e3 e6 5.Nf3 =.

4.e3 Bg6 5.Nf3 e5 6.Be2 Nd7 7.0–0+= f5 8.d4 e4 9.Nfd2 Be7 10.c5 d5 11.a4 Ngf6 12.b5 0–0 13.a5 a6 14.bc6 bc6 15.Nc3 f4 16.Na4 f3 17.gf3+= ef3 18.Bf3 Ne4 19.Nb6?? Nb6?? 20.Be4+= de4 21.ab6+/– Qd5 22.Kh1 Bh5 23.Qe1 Bh4 24.Rg1?? Bf2–+ 25.Qf1 Bg1 26.Qg1 Bf3 27.Nf3 ef3 28.Qf2 Rf6 29.Rg1 Raf8 30.e4 Qe4–+ 31.d5 Rg6 32.dc6 Qc6 33.Rg3 Rg3 34.hg3 Re8 35.Qd4 f2 36.Kh2 f1Q 37.Qg7# 1–0. toll (1650) – Lempira (1805), ICC, 2003.

3.c4 Nf6

4.e3 g6 5.Nf3 Bg7 6.Be2 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.Be2 d6).

4.Nf3 e5 5.d3 Qb6 6.a3 Nbd7 7.e3 a5=+ 8.Qb3 Nc5–/+ 9.Qc2 ab4 10.ab4 Ra1–/+ 11.Ba1 Qb4 12.Bc3 Qb3 13.Qb3 Nb3 14.Nbd2 Nd2 15.Nd2 Be7 16.Be2 0–0 17.0–0 Nd7 18.Rb1 f5 19.Nb3 Bd8 20.Na5 Ba5 21.Ba5 Rf6 22.Bc7 Nc5 23.d4 ed4 24.ed4 Na6 25.Ba5 Kf7 26.f3 Re6=+ 27.Kf2 Re7 28.Bd3 g6 29.Rb3 Ke8 30.c5 dc5–/+ 31.Ba6 ba6 ½–½. Janssen,Lieselotte – Scholz,Jutta, Straussberg DDR–ch (Women), 1971.

4.Nf3 g6 5.e3 Bg7 6.Be2 0–0 7.0–0 e5 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5 7.0–0 c6).

3.e3 Qb6

4.a3 a5 5.c3 ab4 6.cb4 c5 7.b5 Bd7 8.a4 Nf6 9.a5 Qc7 10.b6 Qc6 11.Nc3 e6 12.Bb5 Qg2=+ 13.Bd7 Nbd7 14.Qf3 Qf3 15.Nf3 Be7 16.Nb5 0–0 17.Nc7 Rac8 18.Bf6 Nf6 19.Ke2 d5 20.h4 Bd6 21.Nb5 Bb8 22.h5 h6 23.Rhg1 e5 24.Rg2 Rfe8 25.Rag1 Nh5 26.Nh4 Kh7 27.Nf5 g6 28.Nfd6 Bd6 29.Nd6 c4 30.Ne8 Re8= 31.Ra1 Rc8 32.a6 Ra8 33.ab7 Rb8 34.Ra7 Nf6 35.Rg1 Ne4 36.f3 Nc5 37.Rga1 Kg7 38.d3?? Nd3 39.e4 d4–/+ 40.Kd2 Nc5 41.Rb1 Nb7 42.Rb4 c3 43.Kc2 Nc5 44.Rb5 Ne6 45.b7 Nc7?? 46.Ra8?? Na8–+ 47.ba8Q Ra8 48.Re5 Ra2 49.Kd3 c2 50.Rc5 Ra3 51.Kc2 Rf3 52.Kd2 Re3 53.e5 h5 54.Rd5 h4 55.Rd4 Re5 56.Rh4 g5 57.Rh1 g4 58.Kd3 f5 59.Kd4 Re4 60.Kd3 Kg6 61.Rg1 Kg5 62.Rf1 Re7 63.Kd4 f4 64.Kd3 g3 65.Kd2 Kg4 66.Kd3 f3 67.Rc1 g2 68.Rc4 Kg3 69.Kc3 f2 0–1. slavisa10 – Ledgendari, Live Game Caissa's Web, 2004.

4.a3 a5 5.Bd4 Qc7 6.b5 (6.ba5 Ra5 7.Bc3 Ra4=) 6...e5 7.Bb2 Nf6 8.c4 (8.Nf3 Be7=) 8...Be7+= 9.Nc3 0–0 10.Nf3 Bg4 (10...e4 11.Ng5=) 11.Be2= Nbd7 12.d4 Rfe8 (12...e4 13.Nd2 Be2 14.Qe2=) 13.0–0 Bf8 (13...Rac8 14.e4=) 14.h3 Bh5 15.a4 (15.e4 Bg6=) 15...ed4 (15...e4 16.Nd2 Be2 17.Qe2=) 16.Nd4 Be2 17.Qe2 Nc5 (17...Be7 18.Rad1=) 18.Rfd1 Rad8 19.Qf3 Nfe4 (19...Nfd7 20.Rab1=) 20.Ne4+= Ne4 21.Rac1 ½–½. Lebel,Patrick (2180) – Svendsen,Bertil (2020), NATO–ch13 Brest, 2002.

4.a3 Nf6 5.Bc4 =.

3.e3 Nd7

4.c4 Ngf6 5.Nf3 g6 6.d4 Bg7 7.Be2 0–0 8.0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.Be2 d6 7.0–0 Nbd7 8.d4).

4.Nf3 e5 5.c4 (5.Be2 Qb6 6.a3 c5=) 5...Be7 (5...Ngf6 6.Be2=) 6.d4 (6.Be2 Qb6=) 6...e4 7.Nfd2 d5 8.b5 Ngf6 9.Nc3 (9.bc6 bc6 10.Ba3 Ba3 11.Na3 Qa5=) 9...0–0 10.a4 a6 11.Be2 ab5 12.ab5 Ra1 13.Qa1 Bb4 14.0–0 Qa5 15.Qa5+= Ba5 16.Ra1 Bc7 17.Ba3 Re8 18.Bb4 h6 19.Nb3 dc4= 20.Bc4 Nb6 21.Be2 Nbd5 22.Nd5 Nd5 23.Ba5 Ba5 24.Ra5 Be6 25.bc6+= bc6 26.Nc5 Rb8 27.Ne4+/– Rb1 28.Bf1 f5 29.Ng3 Nc3 30.f3 Nd5 31.Kf2 f4 32.ef4 Rb2 33.Be2 Nf4+= 34.Ra4 Bb3 35.Ra8 Kh7 36.Rb8 h5 37.h4 Nd3 38.Ke3+/– Nc1 39.Rb7 Ra2 40.Bd3 Nd3+/– 41.Kd3 Rg2 42.Nh5 Bd1 43.Ke4 Re2 44.Kf5 Rg2 45.Nf6 Kh6 46.Ng4 Kh7 47.Ne5 Rd2 48.Rd7 Bc2 49.Kf4 Ba4 50.Rd6 Rc2 51.Kf5 Rc3 52.Ke6 Bb3 53.Ke7 c5 54.d5 Re3 55.f4 Re4+/– 56.Ke6 Rf4+= 57.Kd7 Rh4–/+ 58.Kc6 c4 59.Nf7 Rg4 60.Re6? Rg6?? 61.Rg6 Kg6–+ 62.Ne5 Kf5 63.Nf3 g5 64.d6–/+ Ba4 65.Kc5 c3–+ 66.Kb4 c2 67.Nd4 Kf6 68.Ne2 Ke6 69.Ka4 Kd6 70.Kb3 ½–½. Bolk – Braeutigam, OBT, 1997.

4.Nf3 Ngf6 5.d4 Qb6 6.a3 a5 7.c3 c5 8.b5 a4 9.c4+= Qc7 10.Nbd2 g6 11.Rc1 Bg7 12.Be2 0–0 13.0–0 Nb6 14.e4 Rd8 15.d5 Ne4= 16.Bg7 Nd2 17.Qd2 Kg7 18.Qc3 Kg8 19.Ng5 h6 20.Ne4 f5 21.Qg3 Kh7 22.Nd2 e6 23.Qh4 ed5–/+ 24.Rc3 g5 25.Qh5 Qg7 26.Rg3 Be6 27.h4 g4 28.Nf3 Kg8 29.Bd3?? Qf6 30.Re1 Rf8 31.Nh2? dc4 32.Ng4 fg4 33.Re6 Qe6 34.Rg4 Kh8 35.Bg6 Qe1 36.Kh2 Qe5 (37.Qe5 de5–+; 36...Rf2?? 37.Qh6 Kg8 38.Be8#; 36...Qf2?? 37.Qh6 Kg8 38.Qh7#) 0–1. Krueger,Bernhard – Koenig,Eugen, Baunatal op, 1998.

3.e3 e5

(--> 1.b4 e5 2.Bb2 d6 3.e3 c6).

4.c4 Be6 5.Nf3 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 Be6 5.Nf3 c6).

4.c4 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 c6).

3.e3 Nf6

4.c4 a5 5.b5 e6 (5...Nbd7 6.Nc3=) 6.Nc3 (6.Nf3 e5=) 6...Nbd7 (6...Be7 7.Be2=) 7.Nf3 Be7 8.Be2 0–0 9.0–0 Qc7 10.Qc2 Rd8 (10...Nb6 11.Rfc1+=) 11.d4 Nb6 12.e4 (12.Bd3 c5 13.Ne4 Ne4 14.Be4 f5+=) 12...a4 (12...c5 13.d5+=) 13.bc6 (13.Rad1 h6+=) 13...bc6 14.Ba3 (14.Rab1 a3 15.Ba1 Ba6=) 14...Ba6 (14...c5 15.Nb5 Qb8 16.e5 de5 17.dc5+– (17.Ne5?! Bb7+=)) 15.e5+/– de5 16.Be7 Qe7 17.de5 Nfd7 18.Na4 Na4 19.Qa4 Qc5 20.Rfd1 Bb5 21.Qa8 Ra8 22.cb5 Ne5 23.Rac1 Nf3 24.Bf3 Qb6 25.a4! Rc8 26.Rd6 Kf8 27.g3 h5 28.Rdc6 Rc6 29.Rc6 Qb7 30.b6 g5 31.a5 e5 32.Bd5 e4 33.Rc5 Qe7 34.b7 Qc5 35.b8Q Ke7 36.Qe5 Kf8 37.Qf5 Qc1 38.Kg2 Qc7 1–0. Koslowski,Volker (1985) – Fiedler,Peter, DESC, 2003.

4.c4 Nbd7 5.Nf3 e5 6.Qc2 Be7 7.a3 0–0 8.Be2 Re8 9.0–0 Bf8 10.Nc3 Qc7 11.Ne4 a6 12.Ng3 g6 13.h4 (13.d4 Bg7+=) 13...e4 14.Ng5 c5 (14...Qd8!?+=) 15.N5e4+/– cb4?? (15...Bg7 16.d3+/–) 16.ab4 (better is 16.Nf6 Nf6 17.Bf6 ba3 18.Qd3+–) 16...Ne4 17.Ne4 d5? 18.Ng5 Ne5 19.h5 Bf5+= 20.e4 Be4 21.Ne4 de4 22.Qe4 Bb4 23.hg6 Ng6 24.Qd4+= Re5 25.Bf3 Rd8 26.Bd5 Qe7 27.f4 Bc5+= 28.fe5 Bd4 29.Bd4 Ne5 30.Bc3 Kf8 31.Rae1 f6?? 32.Re5+– Qc5 33.d4 Qa3 34.Rf6 Kg7 35.Rf7 Kg6 36.Re6 Kg5 37.Bd2 Kh4 38.Rf4 Kh5 39.Bf3 Kg5 40.Rf7 Kh4 41.Rh6 (41.Rh6 Kg3 42.Bf4#; 41.Rh7 Kg3 42.Rh3#) 1–0. Didicher,Dietmar (1650) – Ortiz Rodriguez,Jose, Frankfurt–ch, 2005.

4.c4 e5 5.d4 =.

4.d4 d5 5.c4 =.

4.d4 Nbd7 5.a3 (5.Nf3 e5=) 5...e5 6.de5 de5 7.Nd2 Be7 (7...c5 8.bc5 Bc5 9.Ngf3=) 8.Ngf3 Qc7 9.c4 (9.Nc4 e4 10.Nd4 b5=) 9...0–0 10.Bd3 Rd8 11.Qc2 c5 12.b5 Bd6 (12...a6 13.0–0=) 13.0–0+= Nb6 14.Rfd1 Bg4 (14...a6 15.Ng5 h6 16.Nge4 Ne4 17.Ne4=) 15.h3 Bh5 16.Ne4 Ne4 17.Be4 Kh8 (17...g6 18.g4 f5 19.gh5 (19.gf5 gf5 20.Kh1 fe4 21.Qe4 Qd7 22.Rg1 Kf8–+) 19...fe4 20.Qe4 gh5 21.Kh1+–) 18.a4 (18.Rd2 f6+=) 18...Nd7= 19.Bb7 (< 19.Bh7 Bf3 20.gf3 g6 21.Bg6 Rg8–/+) 19...Qb7 20.Rd6 Bf3 21.gf3 Nf8 (21...Qf3 22.Rad1 Qh3 23.Qe4+/–) 22.Rd8 (22.Qd3 Qe7 23.Rd1 Qg5 24.Kf1 Rd6 25.Qd6 Qh5+/–) 22...Rd8 23.Rd1 (23.Qe4 Qe4 24.fe4 f6+/–) 23...Re8 (23...Rd7 24.Rd7 Nd7 25.Qe4 Qe4 26.fe4+–) 24.Qe4 (24...Qe7 25.Qc6+/–) 1–0. Luzuriaga,Norberto Horacio (1700) – Rosner,Dirk (1700), TT–01 TSC, 2002.

4.Be2 g6 5.Nf3 Bg7 6.0–0 0–0 7.c4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.Be2 d6 7.0–0).

4.Nf3 e5 5.a3 Be7 6.c4 0–0 7.Be2 e4 8.Nd4 c5 9.Nb3 Nc6 10.b5 Ne5 11.Nc5 Nc4 12.Bc4 dc5 13.Nc3 Bf5 14.0–0 Be6 15.Be6 fe6 16.Qb3 Qd6 17.Qc4 Qe5 18.f3 Rad8 19.f4 Qf5 20.Rad1 Rd3 21.Qa4 a5 22.Qa5 Bd8 23.Qa4 Be7 24.Ne2 Rfd8 25.Ng3 Qd5 26.Bf6 Bf6 27.Qe4 b6 28.f5 Be5 29.fe6 Qe6 30.a4 h6 31.Qf5 Qf5 32.Nf5 Kh7 33.Ne7 Rd2 34.Rd2 Rd2 35.Nc8 Bc7 36.g3 Rd7 37.Kg2 Kg6 38.e4 Rf7 39.Rc1 Kf6 40.a5 Ke5 41.ab6 Bb8 42.Rc4 Rb7 43.Kf3 Bd6 44.Rc2 Rb8 45.Nd6 Kd6 46.Rd2 Ke7 47.Rd5 c4 48.Ke3 c3 49.Kd3 c2 50.Kc2 Rb6 51.Kd3 Ke6 52.Kd4 Rb7 53.Kc5 Rc7 54.Kb6 Rc4 55.Rc5 Ra4 56.Kc6 Ra8 57.b6 Rc8 58.Kb5 1–0. Milde,Lars (1725) – Rosner,Dirk (1700), TT–01.03, 2001.

4.Nf3 Bg4 5.Be2 e5 6.c4 e4 7.Nd4 Be2 8.Qe2 c5 9.Nc2 d5 (9...Nc6 10.a3=) 10.Bf6+= Qf6 11.Nc3 Bd6 (11...Qg6!? 12.0–0 cb4 13.Nd5 Bd6+=) 12.cd5+/– Be5 (12...Qg6!? 13.Qc4 Be5+/–) 13.Ne4+– Qb6 14.d4 cd4 15.ed4 Bd4 16.0–0–0 (16.Nd4?! Qd4 17.Nc5 Kf8+–) 16...Be5 17.Nc5 a5 (17...0–0 18.Qe5 a5+–) 18.Qe5 Kf8 (18...Kd8 19.Qg7 Re8 20.Rhe1+–) 19.Rde1 g6 (19...Qd8 20.Nd4 Ra6 21.Qb8 Qb8 22.Nd7 Kg8 23.Nb8 f6 24.Na6 Kf7+–) 20.Qh8 1–0. Janek – Felix, internet, 2016.

4.Bf6 ef6 5.Nf3 d5 =.

3.Nf3 Nf6

4.e3 e5 =.

4.a3 e5

5.Nc3 Bf5 =.

5.e3 Be6 6.Be2 =.

5.e3 Be7

6.c4 0–0!? =+.

6.c4 c5 7.bc5+= Nc6 8.cd6 Qd6 9.Nc3 a6 10.d4+/– e4 11.c5+– Qd7 12.Nd2 Qf5 13.Qc2 Qg6 14.d5 Bc5 15.dc6 bc6 16.Na4 Nd7 17.Nc5 Nc5 18.Qc5 Bf5 19.Rb1 Bd7 20.Nc4 Bc8 21.Ne5 Qh6 22.Nc6 Bd7 23.Qe7# 1–0. pierre – Kilo2000, ChessHere.com, 2006.

6.Be2 0–0 7.0–0 a5 8.c4 e4 9.Nd4 d5 10.cd5 Qd5 11.Nc3 Qg5 12.f3 ab4 13.ab4 Ra1 14.Ba1 ef3 15.Nf3 Qg6 16.Qa4 Bd6 17.b5 c5 18.Bd1 Re8 19.Bc2 Bf5 20.Bf5 Qf5 21.Qa7 Qd7 22.Qa2 Qf5 23.b6 Nbd7 24.Nb5 Qd3 25.Ng5?? Bh2!–/+ 26.Kh2 Qf1 27.Qf7 Kh8 28.Bf6 Nf6 29.Nd6 (29...Ra8 30.Ne6 Ng4 31.Kg3 Qf7 32.Nf7 Kg8 33.Nd6=). Woelfelschneider,Peter (1700) – Rosner,Dirk (1700), TT–01 TSC, 2002.

6.Be2 e4 7.Nd4 c5 =.

2.Bb2 f6

3.a3 e5 (--> 1.b4 e5 2.Bb2 f6 3.a3 c6).

3.Nc3 d5 4.e4 e6 (4...e5 5.ed5 cd5 6.Qh5 g6 7.Qf3=+) 5.a3 Bd6 (5...d4 6.Na2=) 6.Bd3 (6.d4 Ne7=) 6...Nh6 (6...d4 7.Na2=) 7.Qh5+= Nf7 8.ed5 (8.Nf3 g6 9.Qh4 Ng5 10.ed5 Nf3 11.gf3 0–0+=) 8...cd5 (better is 8...ed5 9.Nf3 Qe7 10.Be2 g6=) 9.Bh7 (9.Nf3 a5+=) 9...Nc6 (better is 9...Nd7!? 10.Qe2 Rh7 11.Qe6 Kf8 12.Qd5 Nb6–/+) 10.Nf3 (better is 10.Nb5 Bf4 11.Qg6+=) 10...e5 (better is 10...Ne7=) 11.Nd5+/– Nd4 12.Nd4 (12.Bd4 Bb4) 12...ed4 13.0–0 (13.c4 dc3 14.dc3 Kf8+/–) 13...Be5+/– 14.f4 Qd5 15.fe5 fe5 (15...Be6 16.Qg6 fe5 17.c3 dc3 18.Bc3+–) 16.Qg6 (16.Rf7!? Rh7 17.Qh7 Kf7 18.Rf1 Ke6+–) 16...Be6 17.Qg7 0–0–0 18.c4 Qc4?? (better is 18...Qd7 19.Rae1 Kb8+–) 19.Rac1 (19...Qc1 20.Bc1+–) 1–0. Wall,Bill – BlueSpike, internet, 2004.

3.Nc3 e5 4.a3 =.

3.c4 b5 4.e4 bc4 5.Bc4 Nh6 (5...e6 6.a3+=) 6.Nf3 (6.Qh5 g6 7.Qf3 Ba6+=) 6...e5 7.a3 (better is 7.Qb3+=) 7...c5? (7...d5!? 8.ed5 cd5 9.Bb5 Bd7 10.Bd7 Nd7=) 8.0–0 (8.Ne5 Qc7 9.Qh5 Kd8 10.Nf7 Nf7 11.Qf7 Qf4+–) 8...Qc7 9.Qb3 (9.b5!?+/–) 9...Nc6+= 10.Bd5 cb4 11.ab4 Rb8 12.Bc6 (12.b5 a6=) 12...Qc6 (12...Rb4 13.Qe3 Rb2 14.Bd5=+) 13.Nc3 Rb4 14.Qc2 Re4?? (better is 14...Ba6 15.Rfc1 Nf7=) 15.Qe4+– Qb6 16.Rfb1 Bc5 17.d4 Bb4 18.de5 f5 19.Qc4 Bb7 20.Nd5 Bd5 21.Qd5 Ng4 22.Bd4 Qe6 23.Qe6 de6 24.Rb4 Kf7 25.Ra7 Kg6 26.h3 Nh6 27.Be3 Rd8 28.Nh4 Kh5 29.Rg7 Rd1 30.Kh2 Rd5 31.Rg5 1–0. Germanicus – JimDog, ChessWorld.net, 2005.

3.c4 e5 (--> 1.b4 e5 2.Bb2 f6 3.c4 c6).

3.c4 e6 4.a3 g5 (better is 4...a5!?=) 5.e4+/– h5 (5...Qe7 6.Qh5 Kd8 7.c5+/–) 6.Be2 g4 7.h3 gh3 (better is 7...Bh6!?+/–) 8.Bh5+– Ke7 9.Nh3 Bg7 (9...Bh6 10.Qg4+–) 10.Nf4 (better is 10.Qg4 Bh6 11.Nf4+–) 10...Rh6? (better is 10...Rh7+–) 11.Qg4 Qf8 12.Rh3 Kd6 (12...e5 13.Ng6 Rg6 14.Qg6+– (14.Bg6?! d5 15.Bf5 Nh6+–)) 13.Rg3 e5 14.Qg7 Qg7 15.Rg7 Ne7 (15...ef4 16.Rg8 Rh5 17.Rc8+–) 16.g4 ef4 17.c5 Ke6 (17...Kc7 18.Re7 b6+–) 18.Bf7# 1–0. pierre – The Cat, ChessWorld.net, 2005.

3.c4 Nh6 4.e4 d6 5.Nf3 Qd7 6.d4 Nf7 7.Nc3 b6 8.Bd3 Qe6 (8...e5 9.d5+/–) 9.0–0 Ba6 (9...Qd7 10.d5+/–) 10.Qb3 (10.d5 cd5 11.ed5 Qc8+–) 10...b5 (better is 10...Qg4!?+–) 11.d5 Qc8 (11...cd5 12.cb5 Bb7 13.Nd4+–) 12.cb5 Bb5 13.Nb5 cb5 14.Bb5 Kd8 (14...Nd7 15.Rac1 Qb7 16.Bc6+–) 15.Rac1 Qb7 16.Bc6 (16...Nc6 17.dc6+–) 1–0. Wall,Bill – WBM, Internet, 2003.

3.e3 b5 4.Bd3 (better is 4.a4+=) 4...Ba6?? (better is 4...Nh6+=) 5.Qh5 g6 6.Qg6!! (6...hg6 7.Bg6#) 1–0. Wall,Bill – Guest1298, Internet, 2003.

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

3.e3 d6 4.f4 e5 5.Qh5 g6 6.Qf3 Bf5 7.e4 Be6 8.f5 gf5 9.ef5 Bd5 10.Qh5 Bf7 11.Qg4 h5 (11...Nh6 12.Qh3–/+) 12.Qe2 b5 (12...Ne7 13.Qf2–/+) 13.Nf3 (13.a4 ba4 14.d4 Ne7=) 13...Bc4 (13...a5!?=+) 14.d3 Bd5 (better is 14...Bf7=) 15.Qd2 (better is 15.a4!?+=) 15...Bh6 (15...a5 16.c4 Bf3 17.gf3=+) 16.Qe2 Qd7 (16...a5 17.c4 Bf7 18.cb5 ab4 19.a3=+) 17.Nh4 (17.Nc3 Qf5 18.Nd4 Qd7 19.Nd5 cd5=) 17...Ne7 18.g4?? (better is 18.c4 Bf7 19.Nc3=) 18...hg4 (better is 18...Bh1 19.gh5 a5 20.ba5–+) 19.Rg1? (19.Bg2 Bg5 20.Ng6 Bg2 21.Qg2 Ng6 22.fg6–+) 19...Rg8 (better is 19...Bg5 20.Ng6 Ng6 21.fg6 Bh4 22.Rg3 f5–+ (< 22...Bg3 23.hg3 a5 24.ba5–+)) 20.c4 (20.Rg4!? Bg5 21.Nc3 Nf5 22.Nd5 cd5 23.Nf3–/+) 20...bc4 21.dc4 Bf3?? (better is 21...Bf7 22.Rg4 Bg5–/+) 22.Nf3+/– gf3 23.Rg8 Ng8 24.Qf3 Ne7?? (better is 24...Qh7 25.Qh3 d5+/–) 25.Qh5+– Kd8 26.Qh6 Nf5 (26...Qf5 27.Qf8 Kd7 28.Nd2+–) 27.Qh8 (better is 27.Qf6 Ne7 28.c5 dc5 29.Be5+–) 27...Kc7 28.Qf6 Qc8 (28...Ne3 29.Na3 Nf1 30.Qf1 Qg4+–) 29.Nd2 (better is 29.Bh3 Qg8 30.Qf5 Qg1 31.Qf1 Qe3 32.Kd1 Na6+–) 29...Ne3 30.Qe7 (better is 30.Ne4 Qd8 31.Qd8 Kd8+–) 30...Qd7 31.Qd7 Nd7 32.Bd3 Ng2 33.Ke2 Rf8 34.Ne4 Nf4 35.Ke3 Rh8 36.Rh1 Rh3 37.Ng3 Ng2 (37...Nh5 38.Rf1+–) 38.Kf2 Nf4 39.Ke3 (39…Ng2 40.Kd2+–; better is 39.Bf5 Rh4 40.Kf3+–) 1–0. var – xuxan, Live Game Caissa's Web, 2004.

3.e3 e6 4.b5 c5 5.c4 b6 (5...d5 6.Bd3=) 6.Nf3 Bd6? (6...a6 7.Nc3+=) 7.Be2?? (7.Nh4!? a6 8.Qh5 Ke7 9.Ng6 hg6 10.Qh8 Qf8+–) 7...Ne7 (7...Bb7 8.d4+=) 8.0–0 (better is 8.Ng5! fg5 9.Bh5 Ng6 10.Qf3+/–) 8...0–0+= 9.d4 Qc7 10.h3 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Qa7 (13...cd4 14.Qd4 Bc5 15.Qd3+=) 14.Bb2 Bb7 15.Nbd2 Nf5 (15...cd4 16.ed4 Ng6 17.Bd3+/–) 16.Bd3 Ne7? (16...cd4 17.ed4 (worse is 17.Bd4 Nd4 18.ed4 Qa3+=) 17...Bf3 18.Qf3+/– (18.gf3?! Bb4=)) 17.Ne4 (17.Qc2 Bf3 18.Bh7 Kh8 19.Nf3 cd4+–) 17...Bc7? (17...Be4 18.Be4 Qc7 19.Qd3+/–) 18.dc5?? (better is 18.Qc2 Be4 19.Be4+–) 18...bc5+= 19.Qc1 Bb6 20.Qa1+/– d5 21.Nd6 Ba8? 22.Qa7+– Ba7 23.Ra1 Bb6 24.Ra8 Nd7 25.Rf8 Kf8 26.Bh7 dc4 27.Be4 f5 28.Bc6 Nb8 29.Nc4 Bc7 30.Ng5 Kg8 31.Ne6 Nbc6 32.Nc7 Nb4 33.b6 Nec6 34.Ne5 Kf8 35.Nc6 Nc6 36.Ba3 Ke7 37.Bc5 Kd8 38.Ne6 Kc8 39.Ng7 Kb7 40.Nf5 Nb8 41.g4 Na6 42.Bd4 Kc6 43.g5 Kd7 44.h4 Ke8 45.h5 Kf7 46.g6 Kg8 47.h6 Nb8 48.h7 Kf8 49.h8Q 1–0. Kuehnel,Ann Kathrin – Loechtenboerger,Chantal, Niedersachsen–ch U16/18 Girls, 2006.

3.e4 Qc7 4.Nf3 (4.a3 e5+=) 4...e5 5.Bc4 (5.a3 d5 6.ed5 cd5 7.Bb5 Nc6=) 5...b5 (5...Bb4 6.a3 Ba5 7.0–0=) 6.Bg8= Rg8 7.d4 (7.a3 a5=) 7...d6 (7...Bb4 8.c3 Be7 9.Qb3=+) 8.de5 (8.0–0 a5=) 8...de5=+ 9.0–0 (9.c3 a5=+) 9...Be7 (9...Bb4 10.Ba3 Ba3 11.Na3–/+) 10.Qe2 (10.a4 Be6 11.Bc3 c5 12.bc5 ba4=+) 10...Kf7 (10...Bb4 11.a4 a6 12.c4=+) 11.c4= a6 (11...Bb4 12.cb5 cb5 13.Rc1=) 12.cb5 (12.a3 Rd8=) 12...ab5 13.Nbd2 (13.a3 Rd8=) 13...Be6 (13...Bb4 14.a4 Bg4 15.ab5 Ra1 16.Ra1 Bd2 17.Qd2 Bf3 18.Qe3 Be4 19.Ra7 Qa7 20.Qa7 Ke6 21.f3+=) 14.a4? (14.a3 Rd8=) 14...Bd7 15.a5 Na6 16.Nh4 g6 17.Ba3 Bb4 18.Bb4=+ Nb4 19.Nb3 Rge8 20.Rfc1= Be6 21.Nc5 Na6 22.Ne6 Re6 23.f4? Rd6 24.fe5= fe5 25.Rf1 Kg7 26.Qg4 Nc5?? 27.Nf5+– Kf6?? 28.Nd6 Ke7 29.Rf7 Kd8 30.Rc7 Kc7+– 31.Nf7 Rd8 32.Ne5 Nd3 33.Rd1 Kb7 34.Nd3 Ka6 35.Nc5 Ka5 36.Rd8 Kb4 37.Qd1 Kc5 38.Rc8 Kb6 39.Qd6 (39...g5 40.Rb8 Ka7 41.Qc7 Ka6 42.Ra8#) 1–0. wach – zerz, Caissa.com, 2004.

3.e4 Nh6 4.Nc3 Nf7 5.Bc4 (5.Nf3!?+/–) 5...e6+= 6.a3 d5 7.ed5 (7.Bb3 a5 8.b5 de4 9.Ne4 cb5=) 7...cd5= 8.Bb3 a5 9.b5 (9.Qe2 ab4 10.ab4 Ra1 11.Ba1=) 9...a4 (better is 9...Bd6!?=) 10.Na4+= (10.Ba4? d4 11.Bb3 dc3 12.Bc3 Ra3–+) 10...e5 (10...Nd7 11.Qh5+=) 11.Nc3 (11.Ne2 Nd6 12.0–0 Nc4 13.Bc4 dc4+–) 11...Be6 (11...d4 12.Na4+/–) 12.Nf3 (12.Nge2!? Nd7 13.Bd5 Bd5 14.Nd5 Nc5+/–) 12...Qd7+/– 13.a4 Bb4 14.h3 (14.0–0 0–0+/–) 14...d4 (14...0–0 15.0–0+/–) 15.Be6 Qe6 16.Ne4 0–0 17.0–0 Nd7 18.c3 Ba5 (18...dc3!? 19.Bc3 Bc3 20.dc3 Rfd8+/–) 19.cd4+– Nb6 (19...Qd5 20.Re1+–) 20.Nc5 (20.de5!? fe5 21.Re1 Qd5+–) 20...Qd5 21.Qb3 Qb3 22.Nb3 e4 23.Nh2 (worse is 23.Na5 Ra5 24.Bc3 Ra4+=) 23...Nd6 (23...Nc4!? 24.Na5 Na5+/–) 24.Ba3+– Rfd8 25.Na5 (better is 25.Bd6!? Rd6 26.Rfc1+–) 25...Ra5+/– 26.Bb4 (better is 26.Bc5 Nd5 27.Bd6 Rd6 28.Rfe1+/–) 26...Ra7? (26...Ra4!? 27.Ra4 Na4+=) 27.Rfc1 (better is 27.Bc5 Ndc4 28.f3 Ra4 29.fe4+–) 27...Nf7?? (27...Ra4 28.Ra4 Na4 29.Bd6 Rd6 30.Rc4+/–) 28.Ng4 h5?? 29.Ne3 f5?? 30.Nf5 1–0. Matveenko,Yury (2110) – Gritsenko,Vladimir (2250), Voronezh City Chess Championship Open, 2009.

3.e3 e5

4.a3 a5 5.b5 cb5 6.Bb5 g5? 7.Qh5+– Ke7 8.Nc3 Qe8?? (better is 8...Nc6 9.Nd5 Kd6+–) 9.Nd5 Kd8 10.Qe8 Ke8 11.Nc7 Kd8 12.Na8 Ne7 13.Nb6 Rg8 14.d4 d6 (14...Bg7 15.Bc4 Re8 16.de5 fe5 17.Nf3+–) 15.de5 de5 (15...fe5 16.Be5! Nd7 17.Bd7 de5 18.Bc8 Nc8 19.Rd1 Nd6+–) 16.0–0–0 Kc7 (16...Nd7 17.Nd7 Bd7 18.Rd7 Kc8+–) 17.Na8 1–0. Janek – Valery, internet, 2016.

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

3.e4 e5

(--> 1.b4 e5 2.Bb2 f6 3.e4 c6).

4.Bc4 Bb4 (--> 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 c6).

4.Nf3 Bb4 5.Bc4 Ne7 (--> 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 Ne7 5.Nf3 c6).

2.Nc3 d5

3.d4 Bf5 4.a3 e6 5.Nf3 Bd6 6.g3 Ne7 7.Bg2 0–0 8.0–0 a5 9.b5 Qb6 10.Rb1 a4 11.Nh4 c5 12.Nf5 Nf5 13.e4 de4 14.d5 Be5 15.Ne4 Rd8 16.Ng5 g6 (16...h6 17.Qe1 Bf6 18.Nf7 Kf7 19.Qe6 Qe6 20.de6 Ke6 21.Re1 Kf7 22.Bb7+=) 17.g4 (17.Qe2 Nd7+=) 17...Nh4 18.Qe2 Nd7 (18...Ng2? 19.Qe5 Nd7 20.Qg3 ed5 21.Kg2+–) 19.Rd1 (better is 19.de6!? fe6 20.Rd1 Ng2 21.Kg2+/–) 19...Ng2+= 20.de6 fe6 (20...Nf4 21.Bf4 Bf4 22.ef7 Kf8 23.Ne6 Kf7 24.Nd8 Rd8 25.Qc4 Qe6 26.Qf4 Kg8 27.Qa4 Rf8+–) 21.Kg2+– h6 22.Ne4 Qc7 23.Bh6+– Nb6? 24.Ng5 Rd1 25.Rd1 Nd5 26.Ne6 Qd6 27.Qe4 (27.Qe4 Qe6 28.Rd5+– (28.Qd5?! Re8+–)) 1–0. Taulien,Christian (2110) – Schiefer,Kim (2225), RSL4, 2006.

3.e3 e5 A) 4.a3+= A1) 4...Nf6 5.Bb2 (5.Nf3 Bd6 6.Bb2 a5 7.ba5 0–0 8.Be2 Qa5 9.0–0 Nbd7 10.Nh4–/+ –0.75) 5...Bd6 6.Be2 0–0 7.Nf3 a5 8.Na2 e4 9.Nd4 Qc7 10.h3+= –0.53; A2) 4...a5 5.b5 Nf6 6.Bb2 Bd6 7.bc6 bc6 8.Nf3 0–0 9.Be2 Nbd7 10.Rb1+= –0.59; A3) 4...Bd6 5.Be2 (5.Nf3 Nf6 6.Bb2 a5 7.ba5 Qa5 8.Be2 0–0 9.0–0 Qc7 10.h3–/+ –0.78) 5...Nf6 6.Bb2 0–0 7.Nf3 a5 8.Na2 Qc7 9.d3 Nbd7 10.c4–/+ –0.72; B) 4.b5 Nf6 5.Nf3 (5.Bb2 Bd6 6.Be2 c5 7.d4 cd4 8.ed4 e4 9.Qc1 Be6 10.Rb1–/+ –0.87) 5...e4 6.Ne5 Bd6 7.f4 0–0 8.Be2 Nbd7 9.Nd7 Bd7 10.Bb2+= –0.69.

3.e3 e6 4.Bd3 Nf6 5.Nf3 c5 6.bc5= Be7 7.Bb5+= Nfd7 8.d4+/– 0–0 9.0–0 Nc6 10.e4 a6 11.Bd3 e5 12.Nd5 b5?? 13.Ne7 Qe7 14.Bg5?? Qe6?? 15.Ne5 f6?? 16.Nd7 Qd7 17.Bh4 Nd4 18.c3 Ne6+/– 19.a3 Rb8? 20.e5 Nf4 21.c6?? Qc6 22.Bc2?? Qg2# 0–1. ajeffries – mspencer, net–chess.com, 2006.

3.e3 Bf5 4.g4 Bg6 (4...Bd7 5.Bb2+= (5.b5 e5 6.Rb1 h5 7.gh5 Nf6 8.bc6 Bc6 9.Bb5 Nbd7 10.Nge2+= –0.59) 5...e5 6.b5 Be6 7.Be2 d4 8.ed4 ed4 9.Ne4 Be7 10.Nf3+= –0.47) 5.h4 (5.Nf3 e6 (5...Nf6 6.Nh4 e5 7.a3 d4 8.ed4 Qd4 9.Nf3 Qg4 10.Ne5= –0.19) 6.a3 Bd6+= 7.Bb2 e5 8.Bg2 h5 9.Na4 Qe7 10.h3+= –0.69) 5...h6 (5...h5 6.g5+= e5 7.a3 Bd6 8.Bb2 Ne7 9.Bg2 b5 10.a4+= –0.53) 6.Nf3 e6 (6...Nd7 7.h5 Bh7 8.Bb2 Ngf6 9.Rg1 e5 10.a3+= –0.37) 7.Ne5 (7.a3 Bd6 (7...Nf6= 8.h5 Bh7 9.Rg1 Nbd7 10.Bb2+= –0.31) 8.d3 h5 9.g5 Ne7 10.e4+= –0.37; 7.b5 Bd6 8.h5 Bh7 9.bc6 bc6 10.Bb2+= –0.28) 7...Bh7 (7...Bb4 8.Ng6 fg6 9.Ne2 (9.Bb2–/+ e5 10.Bg2–/+ –0.81) 9...e5 10.Rb1–/+ –0.75) 8.a3 (8.b5 Bd6 9.f4 Be5 10.fe5+= –0.37) 8...Bd6 9.Nf3 (9.Nd3 Nf6 10.Bb2+= –0.53) 9...Nd7 (9...Nf6 10.g5+= –0.34) 10.Bb2 (10.d3+= –0.47) 10...f6 (10...e5 11.Bg2+=) 11.Nd4 e5 (11...Qe7 12.Rg1=) 12.Nf5 Bf5 13.gf5 Ne7 14.Qh5+= Kf8 15.Rg1 Qe8 16.Qg4 Qf7 17.d3 Rg8 18.h5 Ke8 19.Bg2 Kd8 20.b5 c5 21.Qf3+= Nb6 22.a4+/– Rc8 23.a5+– e4 24.Qd1 Nd7 25.de4 d4 26.ed4 Qc4 27.Ra4 Qf7 28.Bf3 c4 29.Be2 Ke8 30.Qa1 Kf8 31.a6 b6 32.Ba3 Bb8 33.Qa2 Re8 34.Bc4 Qh5 35.Bg8 Bh2 36.Rg6 Bf4 37.Qf7# 1–0. pierre – nathaniel_nate, internet, 2008.

3.e3 Nf6 4.Bb2 Qd6 5.a3 Ne4 6.f3 Ng5 7.h4 Qg3= 8.Ke2 Ne6 9.Rh3 Qe5 10.Na4 d4–/+ 11.Ke1 Nf4 12.Bd4+= Qf5? 13.ef4+– Qe6? 14.Qe2 Qd6 15.Qe3 Bf5 16.Bd3 Na6 17.Bf5 g6 18.Bd3 Bh6 19.Bh8 f6 Black launches an attack 20.h5 g5 21.f5 Rd8 22.Rb1 Kd7 23.b5 Nc7 24.bc6 bc6 25.Nc5 Kc8 26.Rb7 Rh8 27.Qe6 Ne6=+ 28.fe6?? Qc5–+ 29.Rd7 Qg1 30.Bf1 f5 31.f4 g4 32.Rc3 Qb6 33.g3 c5?? 34.Bg2?? Qe6–+ 35.Kd1 Qd7 36.Rc5 Kb8 37.Bc6 Qe6 38.Bd5 Qd6 39.Rb5 Kc7 40.c4 Qa3 41.d3 Qd3 42.Kc1 e6 43.Rb7 Kd6 44.Bg2 Qc4 45.Kb2 Qe2 46.Kc3 Qg2 47.Rb2 Rc8 48.Kb3 Rb8 49.Ka4 Qb2 50.Ka5 Qb5# 0–1. chessbarron – monkeyjizz, net–chess.com, 2005.

3.Nf3 d4 4.Ne4 Nf6 5.Nf6 (5.d3 Nbd7 (5...Bf5 6.Nf6 ef6 7.Qd2 Na6 8.a3 c5 9.Bb2 Qb6 10.g3 0–0–0; 5...Na6 6.a3 c5 7.Bd2 Ne4 8.de4 g6 9.c3 Bg7 10.cd4 cd4) 6.e3 a5 7.ed4 ab4 8.Be2 e6 9.0–0 Be7 10.Bf4 0–0; 5.Nc5 a5 6.Bb2 ab4 7.Nd3 Bf5 8.Bd4 Nbd7 9.g3 e6 10.Bg2 Bd6) 5...gf6 (5...ef6 6.a3= (6.Bb2 Bb4 7.Nd4 0–0 8.e3 Bd6 9.Be2 c5 10.Nb5 Nc6) 6...c5 7.Bb2 Nc6 8.b5 Ne5 9.e3 Bg4 10.h3 Nf3) 6.Bb2 e5 7.c3 dc3 8.dc3 Qd1 9.Rd1 Be6 10.a3 (10.e4 Rg8) 10...Nd7 11.e4 0–0–0 12.Be2 (12.Bc1 Bb3 13.Rd2 Be6=) 12...Be7 (12...Bb3 13.Rc1=) 13.Nh4 b6 (13...Nb6 14.Nf5 Bf5 15.ef5 Rd1 16.Kd1+=) 14.Nf5+= Bf5 15.ef5 Kc7 16.0–0 c5 (16...a5 17.Bh5+=) 17.Bc4+/– Rhf8 18.Rfe1 (18.Bc1 cb4 19.cb4 a5+/–) 18...Bd6 (18...cb4 19.cb4 a5 20.Bc3+/–) 19.Re3 Nb8 20.b5 a6 (20...Be7 21.Rde1+/–) 21.ba6+– Nc6 22.Rh3 Ne7 (better is 22...Be7 23.Rhd3 Bd6+–) 23.Rh7 Nf5 24.g4 Ne7 25.Bf7 Rh8 26.Rh8 Rh8 27.Be6 Ng6 (27...Nc6 28.Kg2+–) 28.Bf5 Nf4 29.Be4 Nh3 30.Kf1 Ng5 31.Bg2 e4 32.c4 Kb8 33.Bf6 Bh2 34.Bh8 Ka7 35.Bf6 Ne6 36.g5 Ka6 37.g6 Nf4 38.g7 Nh5 39.g8Q Nf6 40.Qa8# 1–0. pierre – teqivid, internet, 2010.

3.Nf3 e5 4.Ne5 Bb4 5.Bb2 +=.

3.Nf3 Nf6

4.a3 d4 5.Na2 Bg4 =.

4.a3 h6 5.e3 Bf5 6.Be2 e6 7.Nd4 Bh7 8.0–0 Be7 9.f4 0–0 10.Bb2 Ne4 (10...a5 11.Ra2=) 11.Ne4+= Be4 (11...de4 12.Qe1+=) 12.f5 ef5? (better is 12...Bf5!? 13.Nf5 ef5 14.Rf5 Nd7+=) 13.d3+– (13.Nf5?! Bf5 14.Rf5 Nd7+=) 13...Bg2 (13...Nd7 14.de4 fe4 15.c4+–) 14.Kg2 g6 15.Qd2 Kh7 (15...Re8 16.Rf3+–) 16.Rf3 Bg5 17.c4 Qe7 (17...Re8 18.Rc1+–) 18.cd5 cd5 19.Qc3 Bf6 20.Rh3 (20.Rc1 Be5+–) 20...Qe5 (20...Be5 21.Qb3+–) 21.Rc1 1–0. pierre – zliq, internet, 2010.

4.e3 Bg4 5.h3 Bf3 6.Qf3 =.

4.e3 g6 5.Ba3 (5.Be2 Bg7=) 5...Bg7 6.Bd3 (6.Bb2 Qd6=) 6...a6 (6...Qd6 7.Rb1+=) 7.0–0 (7.Bb2 Qd6=) 7...Bg4 (7...Qd6 8.Be2=) 8.h3 Bc8 (8...Bf3 9.Qf3 Nbd7 10.Bb2=) 9.Qb1 (9.Bb2 Qd6=) 9...0–0 10.Qb3 Re8 11.Rfe1 (11.Rae1 e5 12.e4 de4 13.Ne4 Ne4 14.Re4 Bf5=) 11...Nbd7 (11...b6 12.Bb2+=) 12.Bb2= e5 13.e4 d4 14.Ne2 Nh5 (14...Nb6 15.a4=) 15.c3 dc3 16.dc3 (16.Qc3 Nhf6=) 16...Nf4 (16...Nc5! 17.bc5 Qd3=) 17.Nf4+= ef4 18.Bc4 (18.c4 Ne5 19.Be5 Be5 20.Ne5 Re5+=) 18...Rf8 (18...Qf6 19.Rad1 b5 20.Bd3=) 19.e5+/– Nb6 20.e6 (20.Rad1 Qc7 21.Bc1+/–) 20...Nd5? (better is 20...fe6!? 21.Be6 Be6 22.Qe6 Kh8+=) 21.Bd5+– cd5?? (better is 21...Qd5 22.c4 Qf5+/–) 22.e7 Qe8 (22...Qd7 23.ef8R Bf8 24.c4+–) 23.Qd5 1–0. pierre – opponent, internet, 2008.

2.Nc3 e5

3.Rb1 d5=+ 4.e3 Nf6 5.Nf3 Bd6 6.d4 (6.Be2 e4 7.Nd4 Qc7=+) 6...e4–/+ 7.Ne5 Nbd7 8.Nd7 Bd7 (< 8...Kd7 9.b5=) 9.Be2 0–0 10.0–0 a5 (10...b5 11.a4–/+) 11.b5=+ h6 12.f3 (12.h3 Rb8=+) 12...Qc7 13.fe4 (13.f4 Bb4 14.b6 Qd6=) 13...Bh2–/+ 14.Kh1 de4 (14...Ne4!? 15.Ne4 de4–/+) 15.Rf6= gf6 16.Ne4 Bf5 (16...Kg7!?=) 17.Nf6+= Kh8 (17...Kg7 18.e4 Kf6 19.Qf1+/– (< 19.ef5 Bf4=)) 18.Bd3 (18.e4 Bg6 19.Qd2+– (19.Bh6?! Rfd8+/–)) 18...Bg6 (18...Bd3 19.Qd3 Kg7 20.Nh5 Kg8 21.Qf5+–) 19.Ng4 (19.e4 Rfd8+=) 19...Bg3 (19...Bd6 20.e4 h5 21.Nf6+/–) 20.Qf3 (20.bc6 Qc6 21.d5 Qd5 22.Bb2 f6 23.Bg6 Qg5+–) 20...f5 (20...cb5 21.Qf6 Kh7 22.Rb5+=) 21.Ne5 (21.Nh6!? Qh7 22.Qg3 Qh6 23.Kg1+/–) 21...Be5= 22.de5 Kg7 (22...Bf7 23.bc6 bc6 24.c4=) 23.e6 (23.bc6 bc6 24.e6 Rab8 25.Bb2 Kh7=) 23...c5 24.b6 (24.Bb2 Kh7+=) 24...Qe7 25.Bb2 Kh7 26.Qd5 (26.Kg1 Kg8=) 26...Rac8 (26...Rad8 27.Qe5=) 27.Rf1 Rc6 28.Rf5 Qh4 29.Kg1 Qe1 30.Kh2 Qh4 ½–½. Willen,Anders – Ritter, corr 3GMM–40, 1995.

3.Bb2 Bb4–/+ 4.e4 Nf6 5.Bc4 d5–+ 6.ed5 cd5 7.Nd5? Ne4?? 8.Qf3?? Bd2?? 9.Kd1?? f5 10.Qh5 Kf8?? 11.Ba3+– Kg8 12.Nf6# 1–0. interloper – gordiemac, ChessWorld.net, 2009.

3.Bb2 d6 4.Ne4 Nf6 5.Nf6 Qf6 6.Nf3 Nd7 7.e4 Qe7 8.d4 ed4 9.Qd4 Nf6 10.Be2 Bg4 11.h3 Bf3 12.Bf3 Qd8 13.0–0+/– Be7 14.e5 de5 15.Qe5 0–0 16.Qg3?? Re8 17.Rad1+= Qc8 18.Bc3 Rd8 19.Bd2 a5 20.Bh6 g6 21.a3 Rd1 22.Rd1= Bf8 23.Bg5 Bg7 24.Rd6 ab4 25.ab4 Ra1 26.Kh2 Qa8?? 27.Bf6+– Bf6 28.Rf6 Qe8 29.Qf4 Qe1 30.Rf7 Qh1 31.Kg3 Ra8 32.Qf6 Qe1 33.Qg7# 1–0. glo1 – Gary_Seven, ChessWorld.net, 2009.

3.e4 Nf6 4.Rb1 d5 5.ed5 cd5 6.Bd3 a6 7.Nf3 e4–+ 8.Nd4? ed3 9.cd3 Be7 10.0–0 Nc6 11.Nc6 bc6 12.d4 0–0 13.d3 Bb4 14.Ne2?? Bd6–+ 15.Bg5 Bh2! 16.Kh2 Ng4 17.Kg1 Qg5 18.Ng3 Qh6 19.Qg4 Bg4 20.Rbe1 Rfe8 21.Re8 Re8 22.Rb1 g6 23.f3 Qh4 24.fg4 Qg3 25.Rf1 Re1 26.Re1–+ Qe1 27.Kh2 Qe2 28.g5 Qd3 29.g3 Qd4 30.Kh3 Qd2 31.Kg4 Qa2 32.Kf4 Qe2 33.g4 d4 34.Kg3 d3 35.Kf4 d2 36.Kg3 d1Q 37.Kh3 Qdd3 38.Kh4 Qh2# (38...Qe1#) 0–1. interloper – leighcastle, ChessWorld.net, 2009.

3.Ne4 d5 4.Nc3 Bb4 5.d4?? Bc3 6.Bd2 Ba1 7.Qa1 e4 8.g3 Nf6 9.h3 0–0 10.f3 Be6 11.Bg5 Nbd7 12.Bf6 Qa5 13.c3 Nf6 14.e3 ef3 15.Nf3 Ne4 16.Ng5 Ng5 17.Bg2 Bf5 18.h4 Be4 19.hg5 Bg2 20.Rh7 Kh7 21.Qb1 Be4 22.Qb2 Rh8 23.Qb7 Qc3 24.Kf1 Bd3 25.Kf2 Qc2 26.Kf3 Qe2 27.Kf4 Qf2 28.Ke5 Qg3# 0–1. mookie10 – overrated, Live Game Caissa's Web, 2004.

3.f3 Bb4 4.Na4 Qh4 5.g3 Qg5 6.Nh3 Qh6 7.Rb1 c5 8.Ng1 d6–/+ 9.Bg2 Nd7 10.h3 Nb6 11.g4?? Na4–+ 12.a3 Ba5 13.Rb3 b6 14.Rd3 Ne7 15.Bf1 Ba6 16.Bg2 0–0 17.c3 Bd3 18.ed3 b5 19.Ne2 f5 20.Ng3 fg4 21.c4 gh3 22.Rh3 Qg6 23.cb5 Nb6 24.Rh4 Qd3 25.Bf1 Qg6 26.Rh1 Qg3 27.Ke2 Qf3 28.Ke1 Qd1 29.Kd1–+ d5 30.Bd3 e4 31.Bc2 Ng6 32.Bb3 Rf5 33.Re1 Raf8 34.Bb2 Rf2 35.Kc1 Bd2 36.Kb1 Be1 37.Bc1 Bc3 38.Bc2 Nc4 39.Bb3 R8f3 40.a4 Rf1 41.a5 Na5 42.Bc2 Bd2 43.Kb2 Bc1 44.Ka2 Ra3 45.Kb1 Nc4 46.b6 Bf4 47.Bd1 Rd1 48.Kc2 Rd2 49.Kb1 ab6 50.Kc1 Ra1# 0–1. evandebrake – valerypavlovich, net–chess.com, 2001.

3.Nf3 Qc7 4.e4 Bb4–/+ 5.Bc4 Nf6 6.Qe2 d5 7.ed5 Bc3 8.dc3 cd5 9.Bb5 Bd7 10.Ne5 Qc3 11.Kf1?? Qa1 (11...Qa1 12.Nd7 Kd8 13.Nf6 Qc1 (13...Qf6?! 14.Qd3–+; 13...gf6?! 14.Qd1–/+) 14.Qe1 Qe1 15.Ke1 gf6–+). conqueror – pierre, ChessWorld.net, 2006.

3.Nf3 Bd6 4.Ne4 Bc7 5.Bb2 d5 6.Ng3 Qe7 7.e3 Nf6 8.Be2 0–0 9.0–0 Re8 10.c3 Nbd7 11.Nf5 Qe6 12.Ng3 Nf8 13.Qc2 Ng6 14.c4= Qe7 15.cd5 Nd5 16.b5 c5 17.Bc4 Be6 18.Rac1 b6 19.a3 Rad8 20.Qb3 f6 21.h3 Kh8 22.d3 Qf7 23.Rfe1 Nge7 24.d4 cd4 25.ed4 +=. gtate (2780) – jvanmechelen (2630), net–chess.com, 2008.

3.a3 d5

4.Bb2 Nf6 5.d4 ed4 6.Qd4=+ Be7 (6...Bf5 7.Qe5 Be6 8.e4=+) 7.e3= 0–0 8.Nf3 c5 9.bc5 Nc6 10.Qd2 Bc5 11.Rd1 Qe7 12.Nd5 Nd5 13.Qd5 Ba3 14.Ba3 Qa3 15.Bd3 Qa5 (better is 15...Nb4!? 16.Qe5 Bg4=) 16.Qa5+/– Na5 17.Nd4 b6 18.0–0 (18.Rg1 Rd8=) 18...f5 (18...Be6 19.Ne6 fe6 20.Rd2+=) 19.Rfe1 g6 ½–½. Dopper,Johan – Van Antwerpen,G, corr H364, 1991.

4.Bb2 Nf6 5.d4 Nbd7 6.e3 (better is 6.de5!? Ne5 7.Nd5 cd5 8.Be5=) 6...Bd6–/+ 7.de5 Ne5 8.Nf3 Bg4 (8...Nf3!? 9.gf3 0–0–/+) 9.Be2+= Bf3 10.Bf3 (10.gf3!? 0–0 11.f4=) 10...Nc4–/+ 11.Bc1 Be5 12.Qd3 0–0 13.Rb1 b5 14.Ne2 a5 15.0–0 Qc7 16.g3 ab4 17.ab4 Bd6 18.Nd4 Ra4 19.c3 Ne5 20.Qd1 Nf3 21.Nf3 Ne4 22.Qd3 Ra2 23.Bb2 Be7 24.Nd4 Bf6 25.Nb5?? (better is 25.Qc2+=) 25...cb5–+ 26.Qd5 Qc4 27.Rfd1 Qd5 (27...Nc3?! 28.Qc4 bc4 29.Bc3 Bc3 30.Rbc1 Bb4 31.Rc4–+; worse is 27...Bc3 28.Qc4 bc4 29.Bc3 Nc3 30.b5 Nb1 31.Rb1–+) 28.Rd5 Rd8 (better is 28...Bc3 29.Rb5 Rb2 30.Rb2 Bb2 31.Kg2–+) 29.Rb5 (29.Rd8 Bd8 30.Rd1–+) 29...Nd2 30.Rc1 Rb2 1–0. Oliveira Jr,A Fernandes (1845) – Macedo,A Soares De (1865), 15th IRT da Academia Potiguar de Xadrez, 2015.

4.Bb2 Nf6 5.d4 e4 6.Na4 =+.

4.d4 ed4 5.Qd4 Nf6 =+.

3.Ba3 a5–/+

4.Qb1? ab4–+ 5.Bb4 c5 6.Ba3 Ra3 7.Nb5 Ra4 8.c3 d5 9.Qb3 Ra5 10.d4 Bd7 11.e3 c4 12.Nd6 Bd6 13.Qb7 Rb5 14.Qa7 Bc6 15.Nf3 Ra5 16.Qa5 Qa5 17.Rc1 Ba3 18.Rb1 Qc3 19.Nd2 Bc1 20.Rb8 Ke7 21.Ke2 Qd2 22.Kf3 Qd1 23.Kg3 Nh6 24.Rh8 Qg4# 0–1. Krahl,Wolfgang – Birzer,Lothar, DESC, 1998.

4.e4?? ab4–+ 5.Bb2 bc3 6.Bc3 d5 7.Be5 de4 8.Bc4 Nd7 9.d4 Qa5 10.Ke2 Ne5 11.de5 Qc3 12.Bb3 b6 13.f3 Bc5 14.Qd2 Ba6 15.Kd1 Qa1 16.Qc1 0–0–0 (16...0–0–0 17.Bd5 Rd5 18.Ke1 Qc1#) 0–1. Krahl,Wolfgang – Borst,John, C2.1998.0.00113, 1998.

3.e4 Bb4–/+

4.Bc4 Qa5 5.Qf3 Nh6 6.Qg3 0–0 7.Nf3? Bc3–+ 8.dc3 Qc3 9.Bd2 Qa1 10.Ke2 Qh1?? 11.Ne5 d5 12.ed5 Nd7 13.dc6 Ne5 14.cb7 Bg4 15.Ke3 Nc4 16.Kf4 Nd2 17.Ke3 Qe1 18.Kd3 Rfd8 19.Kc3 Ne4 20.Kb2 Qb4 21.Kc1 Rd1# 0–1. interloper – maftei, ChessWorld.net, 2009.

4.Nf3 f6 5.Bc4 Ne7 6.Bb2 d5 7.Bb3 Na6 8.Ba4? de4 9.Ne4 Bf5 10.Ng3 Qb6 11.0–0 0–0–0 12.Bb3 Bg4 13.d3 Nc5 14.h3 Nf5 15.hg4? Ng3–+ 16.fg3 Nb3 17.d4 Na1 18.Ba1 e4 19.Kh1 ef3 20.Rf3 h5 21.g5 fg5 22.Qf1 Rdf8 23.d5 Qc7 24.Qd3 Rf3 25.gf3 Qg3 26.Qf5 Kd8 27.Bg7 Qe1 28.Kg2 Re8 29.Qg5 Kc7 30.Qh5 Re2 (30...Re2 31.Kh3 Qh1 32.Kg4 Rg2 33.Kf4 Qh5 34.d6 Bd6 35.Ke3 Bc5 36.Kf4 Qg5 37.Ke4 Re2 38.Kd3 Qe3 39.Kc4 b5#) 0–1. Doeh,Cole Adam – Oleynichenko,Sergey, IECG, 1995.

3.Nf3 Bb4

4.Ne5 Bc3 5.dc3 Qa5 6.Qd4+= Ne7? (better is 6...c5 7.Qe3 Ne7+=) 7.Nc4+– Qd5 8.Nd6 Kf8 9.e4 Qe6 (9...Qd4 10.cd4 b6+–) 10.Bc4 Qg6 11.0–0 (11.Bf7 Qg2 12.Bh6 Ng8 13.Bg8 Qg6+–) 11...f6 12.Bf7 (12.Qd1!? h6+–) 12...Qg4 13.f3 Qh4 14.Ba3 b6? (14...c5 15.Qc5 Nbc6+–) 15.Nf5 Kf7 (15...Qf4 16.Ne7 (16.Be7 Kf7 17.Bd6 Qg5+–) 16...Kf7 17.Bd6+– (17.Nc8?! Rc8 18.Bd6 Qg5+/–)) 16.Nh4 (16.Ne7?! Ba6 17.Nf5 Qg5+=; 16.Be7?! Qg5 17.Bd6 Ba6+–) 1–0. b4player – oppo, internet, 2009.

4.Ne5 Bc3 5.dc3 d6 6.Nc4 d5 7.Ne3 Nf6–/+ 8.g3 0–0 9.Bg2=+ Re8 10.0–0 Na6 11.Qd4 Nc7 12.c4 Ne6 13.Qd2 Ne4 14.Qd3 Qf6 15.cd5=+ Qa1 16.de6 Be6 17.Qe4+= Qa2 18.Qb4 Qa6 19.Ba3 Red8 20.Bf3 Rd7 21.Ra1 Qb5 22.c4 Qg5 23.Qc3 Bh3 24.Bb2 Rad8 25.c5 a6 26.Be4 f6 27.Qb3 Kh8 28.Qc4 Re7 29.Qc2 Red7 30.Bd3 Re7 31.Bc1 Qe5 32.Ra4 h6 33.Bb2 Qc7 34.Bc3 Qd7 35.Rh4 Be6 36.Qa4 Kg8 37.Qe4 Kf8 38.Qh7 Qc7 39.Bf6! gf6 40.Qh6 Ke8 41.Qf6 1–0. gtate (2620) – martijn (2570), net–chess.com, 2007.

2.c4 a5

3.Qa4 b5 4.cb5 cb5 5.Qb5 Ba6 6.Qa5+/– Qc8 7.Nc3 Qb7?? 8.Qd5 Nf6 9.Qb7 Bb7 10.Nb5 Ra4 11.a3+– Na6? 12.Bb2 g6? 13.Rc1 Bg7 14.Nc7 Nc7 15.Rc7 Bc6 16.Rc8 1–0. dhub noire – kehrsam, ChessWorld.net, 2006.

3.Qa4 e5 4.b5 =+.

3.ba5 Nf6 4.Bb2 g6 5.Nf3 Bg7 6.e3 0–0 7.Be2 d5 8.0–0 Qa5 9.d4 Nbd7 10.cd5 Nd5 11.e4 Nf4 12.Nbd2 Ne2 13.Qe2 Nf6 14.Nb3 Qb6 15.Rfc1 Be6 16.Nc5 Bg4 (< 16...Ra2 17.Ra2 (17.Ne6? Rb2 18.Qc4 fe6–+) 17...Ba2 18.e5+/–; 16...Ba2 17.e5 Nd5 18.Nd7+=) 17.Rc2 Rfd8 18.h3 Bf3 19.Qf3 Nd7 20.Nb3 Ra4 21.Qf4 Rda8 22.Bc3 c5 23.dc5 Nc5 24.Bg7 Nb3 25.Rb1 Kg7 26.Rb3 Qd4 27.Rd2 Qe4 28.Qe4 ½–½. Loulou – Redmike, HCL–M449 playchess.de, 2003.

3.e3 ab4 4.d4 Qa5 5.Bb2 Na6 6.Nd2 Nf6 7.Ngf3 e6 8.Be2 Be7 9.0–0 0–0 10.Nb3 Qc7 11.Rc1 d5 12.cd5 ed5 13.h3 Ne4 14.Qd3 Bf5 15.Qc2 Ng3 0–1. gtate (1945) – rbeckett (2130), net–chess.com, 2005.

3.Qa4 e6

4.ba5 Ra5 5.Qb3 Nf6 6.Nc3 Na6 7.Nf3 d5 8.cd5 ed5 9.e3 Be6 10.Nd4 Nc5 11.Qc2 Bc8 12.Bb2 Bd6 13.Be2 0–0 14.0–0 Nfe4 15.Bd3 Qh4 16.Nf3 Qh5 17.Ne4 Ne4 18.Be4 de4 19.Qe4 Bg4 20.h3 Bf5 21.Qh4 Qh4= 22.Nh4 Bd3 23.Rfc1 Rfa8 24.a3 Ba3 25.Ba3 Ra3 26.Ra3 Ra3 27.Nf3 Kf8 28.Ne5 Ke7 29.Nd3 Rd3 30.Rc2 Kd6 31.Kf1= (31...b5 32.Ke2=+). fiddler – C_D_B7, chessHere.com, 2006.

4.b5= d5 5.e3 Nd7 6.bc6 bc6 7.Qc2 Ba6 8.Bb2 Ngf6 9.Nf3 Rb8 10.Ne5 Qb6 11.Nd7 Nd7 12.Ba3 Ba3 13.Na3 Qb4 14.Qc1 0–0 15.Rb1 Qa3!? 16.Qa3 Rb1 17.Ke2 Ne5 18.f4 Nc4 19.Qe7 Ne5 20.Kf2 Ng4 21.Kg3 Bf1 22.Qa3? Nf6 23.h4 Ne4 24.Kh2 Nd2 25.Qa5 Rb2 26.a4 Bg2! 27.Ra1 Be4 28.Kh3 Bf5 (29.Kg2 Nc4 30.Kf3 Be4 31.Kg3 Na5–+) 0–1. Hansen,Bjarne G – Hanison,Bernard, corr 3GMM–17, 1994.

3.ba5 Qa5

4.Bb2 (--> 1.b4 c6 2.Bb2 a5 3.ba5 Qa5 4.c4).

4.Nc3 Nf6 5.e4 Ne4–/+ 6.Qc2 Nc3–+ 7.dc3 Na6 8.Be3 g6 9.Bd4 e5–+ 10.Be3 Nc5 11.Nf3 d6 12.Be2 Bf5 13.Qc1 Nb3!! 14.ab3 Qa1 15.0–0 Qc1 16.Rc1 Ra2 17.Bd1 Bg7 18.Nh4 Bd3 19.g3 Kd7 20.Ng2 Rha8 21.Ne1 e4 22.Bd4 Bd4 23.cd4 Ra1 24.Nd3 ed3 (25.Ra1 Ra1–+) 0–1. Netto (1610) – Garfield85 (1895), internet, 2006.

3.ba5 e5

4.Bb2 Qa5 5.e3 Nf6 6.Nf3 d6 7.Be2 g6 8.0–0+= Bg7 9.d4 e4 10.Nfd2 0–0 11.Qb3 d5 12.f3 Na6 13.fe4+/– Ne4 14.Ne4 de4 15.Bc3 Qg5 16.Rf4 f5 17.c5 Kh8 18.Na3 Nc7= 19.Bc4 Rd8 20.Raf1 Ne6 21.R4f2 Qe3 22.Nc2 Nc5 23.Ne3 Nb3–/+ 24.Bb3 c5 25.Nd5 cd4 26.Bb2 e3 27.Re2= Bd7 28.Bc4?? Bc6 29.Nb6 Ra5 30.a4 Be4 31.Bb5 Rb5 32.ab5 Bd3 33.Ree1 Bf1 34.Kf1–+ f4 35.Nc4 g5 36.Rd1 d3–+ 37.Bg7 Kg7 38.Ke1 Kf6 39.Nb2 d2 40.Ke2 Rd5 41.b6 Kf5 (42.Nc4 Ke4–+) 0–1. Labahn,Wolfgang – Heuermann, 1.Espelkamper Schnel, 1988.

4.Bb2 Qa5 5.Be5 Qe5 6.d4 Bb4 7.Nd2 Qd4 8.e3 Bd2 (9.Ke2 Qb2–+) 0–1. fsakvador – pierre, ChessHere.com, 2006.

4.Bb2 Qa5 5.Nf3 d6 =.

4.Bb2 d6 5.d4 ed4 6.Bd4 Qa5 7.Nd2 =.

3.Bb2

3.Bb2 (--> 1.b4 c6 2.Bb2 a5 3.c4).

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

3.Qb3 ab4=+

4.Qb4 Na6 5.Qb2 Nf6 =+. 4.Qb4 Na6 5.Qb3 e5 6.Bb2 Nc5 7.Qc2 =+.

4.Qb4 Na6 5.Qb3 Nf6 6.Bb2 g6 7.Nf3 Bg7 8.d4 0–0 9.Nbd2 d5 10.e3 Nc7 11.Be2 dc4 12.Bc4 Ncd5 13.0–0 Qc7 14.Rac1 Nb6 15.Bb5 Ra5 16.Rc5 Be6–/+ 17.Qc3 Rfa8 18.a3? Qc8?? 19.Bd3 Na4–/+ 20.Qb4?? Nc5–+ 21.dc5 Nd5 22.Qb3 Ne3! 23.Qb6 Nf1 24.Bg7 Kg7 25.Kf1 Ra3 26.Qb2 f6 27.Ng5 Bd5 28.Be4 Qd7 29.g3 Ra2 30.Qc3 h6 31.Bd5 hg5 32.Ba2 Ra2 33.Nf3 Qh3 34.Kg1 Qf5 35.Kg2 Rc2 36.Qe3 Qc5 37.Nd4 Qd5 38.Kh3 Qd7 39.Kg2 Rc4 40.Nf3 b5 41.Nd2 Rc2 42.Ne4 Qe6 43.Qd3 Rc4 44.Nd2 Ra4 45.h3 Qd5 46.Qd5 cd5 47.Nb3 b4 48.Nc5 Ra3 0–1. Steve20 – kehrsam, ChessWorld.net, 2006.

4.Qb4 Na6 5.Qc3 Nf6–/+ 6.Nf3 g6 7.d4 e5 (8.Nfd2 ed4 9.Qd4 Be7–/+) 0–1. Ramiz – Garfield85 (1905), internet, 2006.

4.Qb4 d5 5.Qb3 =+.

4.Qb4 e5 5.Qb2 d6 6.Nc3 –/+.

4.d4 Nf6 5.Nf3 e6 6.Bg5 d5 7.e3 Be7 8.cd5 ed5 9.Nbd2 (9.Bf6 Bf6 10.Qb4 Qe7=+) 9...Na6 10.Bd3 Bg4 11.h3 Bf3–/+ 12.Nf3 Nc7 13.0–0 Ra3 14.Qc2 Ne6 15.Rfb1 Ng5–/+ 16.Ng5 h6 17.Nf3 Qa8 18.Rb3 0–0 19.Nd2 Qa4 20.f3 Ra8 21.Rb2? Qc2–+ 22.Bc2 Re3 23.Kf2 Rea3 24.Nb3 Nd7 25.Ke2 Nb6 26.Bd3 Na4 27.Rc2 Nc3 28.Kf2 Ra2 0–1. Daveygravey36 – boa, ChessWorld.net, 2002.

3.b5

3.b5 (--> 1.b4 a5 2.b5 c6 3.c4).

3.b5 cb5 4.cb5 (--> 1.b4 a5 2.b5 c6 3.c4 cb5 4.cb5).

3.b5 cb5 4.cb5 d5 (--> 1.b4 a5 2.b5 c6 3.c4 d5 4.cd5 cd5).

3.b5 d5

4.a4 (--> 1.b4 a5 2.b5 c6 3.a4 d5 4.c4).

4.cd5 cd5 (--> 1.b4 a5 2.b5 c6 3.c4 d5 4.cd5 cd5).

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

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

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

3.b5 e5

4.Bb2 d6 5.e3 Nf6 (--> 1.b4 a5 2.b5 Nf6 3.Bb2 d6 4.e3 e5 5.c4 c6).

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

3.b5 Nf6

(--> 1.b4 a5 2.b5 Nf6 3.c4 c6).

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

4.e3 g6 5.Bb2 Bg7 6.Nf3 0–0 7.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.d4 a5 7.b5).

2.c4 Na6

3.a3 b6 4.Bb2 e6 5.e3 Qh4 (5...Nf6!?=) 6.Nf3+/– Qc4?? (better is 6...Qd8+/–) 7.Bc4+– d5 (7...b5 8.Be2+–) 8.Bd3 c5 (8...Ne7 9.Ne5 h5 10.Be2+–) 9.bc5 (better is 9.Ba6 Bd7+–) 9...Nc5 10.Bb5 Bd7 11.Bd7 Kd7 12.0–0 Nd3 13.Qa4 Kd8 14.Bc3 Bc5 15.Bg7 Ne7 16.Bh8 Kc7 17.Bf6 Nc6 18.Nc3 Bd4 19.Nd4 Nd4 20.Bd4 Nb2 21.Nb5 Kb7 22.Qb4 Nd3 23.Qe7 Ka6 24.a4 e5 25.Nc7 Kb7 26.Na8 Ka8 27.Be5 Ne5+– 28.Qe5 Kb7 29.Rfc1 Ka6 30.Qd5 f6 31.Qb5 Kb7 32.a5 a6 33.Qb6 Ka8 34.Rc8 1–0. Fournier,Frederic – trancadis, Active, 2006.

3.a3 d5 4.cd5 cd5 5.Bb2 =.

3.a3 e6 4.Nc3 d5 5.cd5 ed5 6.e3 Nc7 7.Bb2 Bf5 8.Nf3= h6 9.Be2+= Nf6 10.Nd4 Bg6= 11.0–0 Bd6 12.Rc1 0–0 13.Nf3 Ne6 14.d4 Qe7 15.Na4 Ne4 16.Nc5 Bc5 17.bc5 Bh5 18.Ne5 Be2 19.Qe2 Rfe8 20.Rfe1 g5 21.Qh5+/– Kg7 22.Rb1 Nf8 23.Ng4 Ng6?? 24.Nh6 Qf6 25.Ng4+– Qf5 26.Qh6 Kg8 27.Bc1?? Qg4 28.f3+/– Qh4 29.Qh4 Nh4 30.fe4 Re4 31.Rb7 f5? 32.Rc7 Rb8 33.Rc6 Rg4+/– 34.g3 Nf3 35.Kf2 Ne1 36.Ke1 f4? 37.ef4+– Rb1 38.Kd2 gf4+/– 39.Kc2 Rc1 40.Kc1 fg3 41.hg3 Rd4 42.Kc2 Rg4 43.Rd6 Rg3? 44.Rd5+– Ra3?? 45.c6 Ra2 46.Kb3 Ra6 47.Rc5 Rb6 48.Ka4 Rb8 49.Ka5 Rc8 50.c7 Kf7 51.Ka6 Ke6 52.Kb7 (52...Rf8 53.c8Q Rc8 54.Kc8+–) 1–0. CHED – juanpacio (1675), internet, 2006.

3.b5 cb5 4.cb5 Nb4 5.e4 Qc7 6.Nc3 Qd6 7.d3 g6? (7...Qf6 8.Nge2 Qd6+–) 8.Bb2 Bg7 9.a3 Nf6 10.ab4 Qb4 11.Qc2 0–0 12.Ra4 Qd6 13.d4 Rd8 14.Ba3 Qe6 15.d5 Qb6 16.e5 Nh5 17.d6 a6 (17...e6 18.Nd5! ed5+–) 18.Nd5 Qa7 19.de7 Re8 20.b6 Qb8 21.Bd6 Be5 22.Bb8 Rb8 23.Be2 Nf6 24.Qc7 Nd5 25.Qe5 (25...Nb6 26.Rd4+–) 1–0. dont – jackie16, Live Game Caissa's Web, 2004.

3.a3 Nc7

4.Bb2 d6 5.e3 f6 (5...e5 6.d4 e4 7.d5=) 6.Nf3 g6 (6...e5 7.Nc3+=) 7.d4+/– Bg7 8.Be2 e5 9.de5 fe5 (9...de5 10.Qd8 Kd8 11.Nc3+/–) 10.Nbd2 (10.c5 dc5 11.Qd8 Kd8 12.Ne5 Ke8+/–) 10...Nf6+= 11.0–0 (11.c5 dc5 12.bc5+/– (worse is 12.Ne5 cb4 13.ab4 Qe7=)) 11...h5? (11...0–0!?=) 12.Qc2 (12.c5 dc5 13.bc5 Bf5+/–) 12...Bf5 13.Bd3 e4? (better is 13...Bd3 14.Qd3 Rh6+=) 14.Ne4+– Qe7 (14...Rg8 15.Nf6 Bf6 16.Bf5 gf5 17.Bd4+–) 15.Nf6 Bf6 16.Bf6 (better is 16.e4!? Bg4 17.e5 de5 18.Ne5 Be5 19.Be5 0–0 20.Bc7 Qc7 21.Bg6 Qg7+–) 16...Qf6 17.Bf5 Qf5 18.Qf5 gf5 19.Rad1 Kd7 20.Ne5 Ke6 21.Ng6 Rhg8 22.Nf4+– Ke7 23.Rd2 h4+/– 24.h3 Ne6 25.Ne6 Ke6 26.Rfd1 Rad8 27.f4 Rg3+= 28.Re2 d5 29.cd5 Rd5= 30.Rd5 Kd5 31.Kf2 b5?? 32.Rc2+– a6 33.Rc5 Ke4 34.Re5 Kd3 35.Rf5 Re3 36.Rd5?? Ke4 37.Re5+– Kd4 38.Re3 c5 39.bc5 Kc5 40.f5 Kc4 41.f6 b4 42.ab4 Kb4 43.f7 Kc4 44.f8Q a5 45.Qf4 Kb5 46.Re5 Kc6 47.Qf6 Kd7 48.Re7 Kd8 49.Qf8 1–0. Fournier,Frederic – NAILA, Active, 2009.

4.Nf3 =.

2.c4 b5

3.c5 d6 4.e3 (4.Nf3 a5 5.cd6 ab4 6.de7 Be7+=) 4...dc5 (4...a5!?–/+) 5.bc5= Bf5 6.Nc3 Nd7 7.d4 a5? (better is 7...b4 8.Qf3 Nh6=) 8.Qf3+– b4 9.Nd1 (9.Qf5!? bc3 10.Ne2+–) 9...Bc2 10.Bc4 (better is 10.Qc6!? Ngf6 11.Nf3+/–) 10...Ngf6= 11.Qe2 (11.Qc6?? Be4 12.Qb5 Bg2–+) 11...Be4 12.Nf3 g6 13.a3 Bg7 14.0–0 Qb8 15.ab4 ab4 (15...Qb4? 16.Ba3 Qb7 17.Nc3+–) 16.Ra8 Qa8 17.Ng5 Bd5 18.e4 Bc4 19.Qc4 0–0 20.f3 h6 21.Nh3 e6 22.Nf4 Rd8 23.Qb4 Rb8 24.Qc4+/– g5 25.e5 Nd5 26.Nd5+– ed5 27.Qc2 Nf8 28.f4 gf4 29.Bf4 Ne6 30.Be3 Rf8 31.Qd2 Kh7 32.Nf2 f5 33.Nh3 Qe8 34.Qd3 Qh5 35.Qa6 Nd8 36.Nf4 Qf7 37.Rb1 Re8 38.Qc8 Qe7 39.Qf5 Kg8 40.Rf1 Rf8 41.Qd3 Ne6 42.Ne6 Rf1 43.Qf1 Qe6 44.Qf4 Qg6 45.h3 h5 46.Kh2 Kh7 47.Qg5 Qe4 48.Qh5 Kg8 49.Qf3 Qg6 50.h4 Qh7 51.g3 Qc2 52.Qf2 Qe4 53.Qf4 Qc2 54.Bf2 Qg6 55.g4 Qh7 56.h5 Qd3 57.Qe3 Qf1 58.e6 Kf8 59.h6 (59.h6 Bh6 60.Qh6 Kg8 61.Qg5 Kh7 62.Qf5 Kg7 63.e7 Qe2 64.Qf8 Kg6 65.e8Q Qe8 66.Qe8 Kf6 67.Bh4 Kg7 68.Bg5 Kh7 69.Qf7 Kh8 70.Bf6; 59.Qf3 Kg8 60.e7 Qe1 61.Be1 Be5 62.de5 Kg7 63.Qf6 Kg8 64.e8Q Kh7 65.Qef7) 1–0. Lauko,M (1980) – Frcka,Bohumir, South Bohemia Open, Cesky Krumlov CZE, 2009.

3.e3 bc4 4.Bc4 d5 5.Bb3 Nf6 6.h3 e5–/+ 7.Nf3 Nbd7 8.Bb2 Qc7 9.0–0 h6 10.d4 e4–/+ 11.Ne5 Bd6 12.Nc3 Bb4 13.Rc1=+ 0–0 14.Nb5?? Qb6–/+ 15.a4?? cb5–+ 16.Rc6 Qb7 17.ab5 Qb5 18.Ba4 Qa5 19.Qc2 Ba6 20.Rc1 Bd2 21.Rc5 Nc5 (22.dc5 Bc1 23.Bc1 Rfc8–+) 0–1. gtate (1930) – gfry (2085), net–chess.com, 2005.

3.c5 a5

4.ba5 Qa5 5.Bb2 Na6 (5...Qb4 6.Qc2–/+) 6.e3 (6.a4 ba4 7.Ra4 Qc5+=) 6...e6 (6...Nc5 7.Nf3–/+) 7.Nf3 (7.a4 Qb4 8.Bc3 Qc5+=) 7...f6 (7...Nc5 8.Be2–/+) 8.Be2 (8.a4 ba4 9.Ra4 Qc5=) 8...Bc5 (8...Nc5 9.0–0–/+) 9.0–0 (9.a4 b4+=) 9...Ne7 (9...d5 10.a4 b4 11.d4+=) 10.d4 Bd6 11.Nc3 (11.a4 b4=) 11...0–0–/+ 12.Ne4 Bc7 13.Qc2 d5 14.Nc5 Bb6?? (14...Nc5 15.Qc5 Qa7 16.Qc2–/+) 15.Na6 (better is 15.a4 Nb4 16.Qc3+/–) 15...Ba6+= (worse is 15...Qa6 16.a4+=; worse is 15...Ra6 16.a4 b4 17.Ba6 Ba6 18.Rfb1+=) 16.Rfc1 Rac8 17.Nd2 Bb7 18.a4+= b4 19.Nb3+/– Qa7 20.a5 Bc7 21.a6 Ba8+/– 22.Nc5 e5 23.Qb3 Qb8?? 24.a7+– Qb6 25.Ra6 Qa6 26.Na6 Bb7 27.Qb4 Ba6 28.Ba6 Rb8 29.ab8Q Bb8 30.Qe7 (30.Qe7 c5 31.Bb7+–) 1–0. Fournier,Frederic – loeches, Active, 2008.

4.Qb3 ab4 5.Qb4 e6 6.Bb2 Nf6 7.d4 d6 8.cd6 Bd6 9.Qb3 Ra4 10.a3 0–0 11.Nf3 Bd7 12.e3 Qb6 13.Be2 Nd5 14.0–0 c5 15.dc5 Bc5 16.Nc3 Nc3 17.Qc3 f6 18.Rfc1 Bd6 19.Qb3 Kh8 20.Nd4 Ra5 21.Bc3 (21.Ne6? Be6 22.Qc2 Na6–+) 21...b4 22.Bb4 Bb4 23.Qb4 Qb4 24.ab4 Ra1 25.Ra1 e5 26.Nb3 Bf5 27.Nc5 Nd7 28.e4 Nc5 29.ef5 Nd7 30.g4 Rb8 31.b5 Kg8 32.Ra7 Nb6 33.Bf3 Kf8 34.Bc6 h6 35.Kg2 Nc8 36.Ra8 Ra8 37.Ba8 Ke7 38.Kf3 Kd6 39.Bc6 Kc5 40.Kg3 Na7 41.Kh4 Nc6 42.bc6 Kc6 43.Kh5 Kd5 44.Kg6 e4 45.Kg7 Ke5 46.Kg6 Kf4 47.Kf6 Kf3 48.Kg6 (48…Kg4 49.f6+–) 1–0. Hollstein,Gerhard – Koschella,Peter, Mehlingen PSB–ch HT3, 1999.

3.cb5 cb5

4.Nc3 Qb6 5.e3 a6 6.Bb2 Bb7 7.Nf3 Nf6 8.d4 g6 9.Be2 Bg7 10.0–0 Nc6 11.d5 Nb4 12.a3 Nfd5 13.Nd5 Nd5 14.Bg7 1–0. Bonetti,Shane – mastodon (1650), ICC, 2002.

4.e4 a6 5.a4 Bb7 6.Nf3 =.

4.e4 e5 5.Bb5+= Bb4 (5...Nf6 6.Bb2 Bb4 7.Be5+=) 6.Qb3 Qc7 7.Bc4 (7.Bb2 Be7+=) 7...d5 8.ed5 Qd6 (8...Bd6 9.Nc3+=) 9.Ba3 (9.Nc3 Nf6+/–) 9...Ba3 (9...a5 10.Qg3 Qf6 11.Bb2+/–) 10.Na3 Bd7? (Better is 10...a6+=) 11.Qb7+– Qa3 12.Qa8 Qb2 13.Rd1 Qb4 14.Bd3 Ke7 15.Rb1 Qd4 16.Qb8 Qd5 17.Ne2 Nf6 18.Qh8 Qd3 19.Qb8 Qe4 20.Rb4 (20…Qd5 21.Qa7 Qg2 22.Qc5 Ke6 23.Nf4 ef4 24.Rb6 Bc6 25.Rc6 Qc6 26.Qc6 Ke5 27.Rg1+–) 1–0. Kern,Guido (2410) – Hove, Hessen clubgame, 1997.

2.c4 d6

3.Qc2 Nf6 4.d3 e5=+ 5.e3 Be7 6.Nf3 0–0 7.Bd2 Re8 8.e4 Bf8 9.a4 Na6 10.Be2 d5 11.c5 b6–/+ 12.0–0 bc5 13.b5 cb5 14.ab5 Nc7 15.Ba5 Bd7 16.Na3 Qb8 17.Rfb1 Nb5 18.Nb5 Bb5 19.d4 a6 20.Ne5 cd4 21.Nc6 Qc8 22.Bb5 ab5 23.ed5 Nd5 24.Nd4 Qc4 25.Qd2 Bc5–+ 26.Rd1? Qd4 27.Qd4 Bd4 28.Rd4 Ra5 (29.Rdd1 Ra1 30.Ra1 b4–+) 0–1. Langen,Roger – Shapiro,Daniel E (2320), World op, 1993.

3.Nc3 a6 4.e3 e5 5.Nge2 Nf6 6.Ng3 Be7 7.Be2 0–0 8.0–0 Be6 9.d4 Qc7 10.Rb1 Rd8 11.Qc2 b6 12.Nce4 Nbd7 13.a4 Ne4 14.Ne4 b5 (better is 14...a5=) 15.Bd3?? (15.cb5 d5 16.Qc6 Qc6 17.bc6 de4 18.cd7 ed4 19.ed4 Rd7+/–) 15...Bf5?? (better is 15...bc4!? 16.Be2 d5–/+) 16.a5 (16.cb5 ab5 17.ab5 d5 18.Nf6 Nf6 19.Bf5 g6+–) 16...d5 (better is 16...bc4 17.Nf6 Nf6 18.Bf5 ed4 19.Qc4 de3 20.Be3 d5+=) 17.Ng3?? (better is 17.cd5 ed4 18.ed4 Be4 19.Be4+=) 17...Bd3–/+ 18.Qd3 e4 19.Qe2 Nf6 (better is 19...bc4!? 20.f3 Bd6 21.fe4 Bg3 22.hg3 Qg3–/+) 20.c5= Re8 21.f4 Qd7 22.f5 ½–½. Radwan,Jan (1615) – Korycki,Jozef (1735), Ogolnopolski Integracyjny Turniej Szachowy Poland, 2012.

3.d4 e6 4.Nc3 Nf6 5.Nf3 Be7 6.e4 0–0 7.Bd3 Nbd7 8.0–0 e5 9.Re1 a6 10.d5 Qb6 11.a3 Ng4 12.h3?? Nf2–/+ 13.Be3?? Nh3 14.gh3+– c5 15.Kh2 Qd8 16.Rg1 Nf6 17.Bh6 g6? 18.Nh4 Qd7 19.Nf5 Re8 20.Be2?? Ne4 21.Ne7?? Re7= 22.Bg4 Qd8?? 23.Ne4+– (23...f5 24.bc5 fe4 25.Bg5+–) 1–0. gtate (1990) – fabill, net–chess.com, 2005.

3.d4 Nf6 4.e3 Nbd7 5.Nc3 e5 6.Nf3 e4 7.Nd2 d5 8.Qb3 Nb6 9.c5 Nbd7 10.Be2 Be7 11.Bb2 0–0 12.0–0 Re8 (12...b6 13.b5 bc5 14.bc6=) 13.f3 Qc7 14.fe4+/– a6? 15.e5+– Ne4 16.Nce4 Nf8 17.Nd6 Bd6 18.ed6 Qd7 19.e4 de4 20.Bh5 Qe6 21.Bf7 Qf7 22.Qf7 Kh8 23.Qf8! 1–0. combat – tepolov, Live Game Caissa's Web, 2004.

3.e3 h6 4.d4 Nf6 5.Bb2 d5 6.Nc3 Be6 (6...Bf5 7.Nf3=) 7.cd5 Bd5 8.Nd5 Nd5 9.a3 a6 (9...e6 10.e4 Nf6 11.Bd3+=) 10.Nf3 Nd7 11.e4 b5? (better is 11...N5f6 12.Bd3 e6+/–) 12.ed5+– cd5 13.Bd3 g6 (13...e6 14.0–0+–) 14.0–0 Bg7 15.a4 0–0 (15...ba4 16.Qa4 0–0 17.Ba6+–) 16.ab5 Nb6 (16...ab5 17.Qe2 Ra1 18.Ra1+–) 17.ba6 Nc4 18.Bc4 dc4 19.Ne5 (19.Qe2 Qb6 20.Qc4 Rfc8+–) 19...Be5 20.de5 Qd1 (20...Qb6 21.Qa4+–) 21.Rfd1 e6 (21...Rfb8 22.Ra4+–) 22.b5 Rfb8 23.Ra5 Kh7 24.Bd4 g5 25.b6 c3 26.Rc1 Kg6 27.Rc3 Kf5 28.f3 g4 29.Rc7 Kg6 30.b7 Rd8 31.ba8Q Ra8 32.a7 Rd8 33.a8Q Rd4 34.Qg8 Kf5 35.Rf7 1–0. Fournier,Frederic (1990) – NN, Active, 2004.

3.e4 e5 4.Nf3 Nf6 5.Nc3 Be7 6.Be2 0–0 7.0–0 Bg4 8.d3 Nbd7 9.Be3 b6 10.d4 Bf3 11.Bf3 ed4 12.Bd4 Qc7 13.Re1 a5 14.b5 c5 15.Bf6 gf6 16.Nd5 Qd8 17.e5 Rb8 18.Ne7 Qe7 19.ed6 Qd8 20.Be4 Ne5 21.Re3 Re8 22.Rh3 Ng6 23.Bd5 Kg7 24.Bf7 Re5 25.Bg6 hg6 26.Rg3 Qd7 27.Qd3 Qe8 28.Kf1 Rd8 29.f4 Re4 30.f5 g5 31.Kf2 Rd6 32.Qd6 Rd4 33.Qc7 Rd7 34.Qb6 Rd2 35.Kg1 Qd7 36.Rf3 Qd4 37.Kf1 Qa1 0–1. Long_Knights – zggenev, ChessWorld.net, 2005.

3.Bb2

3.Bb2 (--> 2.Bb2 d6 3.c4).

3.Bb2 Qb6 4.a3 a5 (--> 1.b4 c6 2.Bb2 Qb6 3.a3 a5 4.c4 d6).

3.Bb2 e5 (--> 1.b4 e5 2.Bb2 d6 3.c4 c6).

3.e3 e5

4.Bb2 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 c6).

4.d4 =.

2.c4 e5

3.a3 Be7 A) 4.Nc3 A1) 4...Nf6 5.d4 (5.Nf3 e4 6.Nd4 d5 7.cd5+=) 5...ed4 6.Qd4 d6 7.Nf3=; A2) 4...d5 5.cd5 cd5 6.d4 ed4 7.Qd4=; A3) 4...d6 5.d4 (5.e4 f5 6.ef5 Bf5 7.Nf3=; 5.Nf3 f5 6.d4 e4 7.Ng1=) 5...ed4 6.Qd4 Bf6 7.Qd2=; A4) 4...a5 5.b5 d5 6.bc6 bc6 7.cd5=; B) 4.e4 d5 5.cd5 (5.ed5 cd5 6.cd5 Qd5 7.Nc3=) 5...cd5 6.ed5 Qd5 7.Nc3=; C) 4.Bb2 d6 (4...Bf6 5.e4 d6 6.Nf3 Bg4 7.Be2+=) 5.e4 a5 6.d4 ab4 7.de5=; D) 4.e3 D1) 4...d6 5.Bb2 (5.d4 e4 6.Nd2 Nf6 7.Qc2+=; 5.Nc3 Nf6 6.d4 0–0 7.e4=; 5.Be2 a5 6.Bb2 Nf6 7.d4=) 5...Nf6 6.d4 e4 7.d5=; D2) 4...Nf6 5.d4 (5.Bb2 d6 6.d4 e4 7.Nc3=; 5.Be2 d5 6.Bb2 e4 7.d3+=; 5.Nc3 a5 6.b5 0–0 7.d4=; 5.d3 d6 6.Nf3 Be6 7.Be2=) 5...e4 6.d5 d6 7.Bb2=; E) 4.Nf3 e4 5.Nd4 (5.Bb2 ef3 6.Bg7 Bf6 7.Bh8+=) 5...d5 6.cd5 Qd5 7.e3=.

3.a3 f6 4.Bb2 d5 5.cd5 cd5 6.e3 a5 7.b5 b6 (7...Be6 8.d4 Nd7 9.Nc3=) 8.Nf3 (8.d4 e4+=) 8...Bb7 (8...Bd6 9.Nc3 Ne7 10.d4=) 9.Be2 Nd7 10.Nc3 Bd6 11.0–0 Ne7 12.h3 (12.d4 Qb8=) 12...0–0 13.a4 Nc5 (13...Qe8 14.d4=) 14.d4 Nd7 (14...Ne6 15.Rc1=) 15.Qb3 e4? (15...Kh8 16.Ba3 Ba3 17.Ra3=) 16.Nd2 (better is 16.Ne4 Bb4 17.Ba3 Ba3 18.Ra3+–) 16...f5= 17.Rac1 Nf6 18.Rc2 Rc8 19.Rfc1 Bb8 (19...Kh8 20.Ba3=) 20.Nd1 (20.Ba3 Rf7=) 20...Qd6 21.Rc8?? (better is 21.Nf1=) 21...Qh2 (21...Nc8?! 22.f4 ef3 23.Nf3+=) 22.Kf1 Qh1 (22...Rc8?! 23.Rc8 Nc8 24.f4+=; 22...Nc8?! 23.f4+=; 22...Bc8?! 23.f4 ef3 24.Bf3+=) 0–1. Fournier,Frederic – Guest1133964, Partie amicale, 3m + 0s, 2008.

3.a3 g6 4.Bb2 Bg7 5.Nf3 Qe7 6.c5 d5 7.cd6 Qd6 8.e3 Bg4 9.Be2 Nh6 10.d4 Bf3 11.Bf3 ed4 12.Bd4 Bd4 13.Qd4 Qd4 14.ed4 Nd7 (14...Nf5 15.d5 Nd4 16.Be4=) 15.0–0 0–0 16.Nc3 Rad8 17.Rad1 Nb6 18.a4 Nf5 19.a5 Nd5 (19...Nc4 20.d5 Nb2 21.Rb1+=) 20.Nd5 cd5 21.Rfe1 Ng7 (better is 21...Nh4!?+=) 22.Re7+– Rb8 23.Bd5 Nf5 24.Rd7 Rfd8 25.Bf7 Kf8 26.Be6 Rd7 27.Bd7 Nd4?? (27...Ne7+–) 28.Rd4 Rd8 29.Rd1 Ke7 30.Bg4 Rd1 31.Bd1 Kd6 32.f4 1–0. Fournier,Frederic (2445) – Evans,Stan (1925), Chessworld.net, 2012.

3.Bb2 a5 4.b5 d6 5.a4 (5.d4 e4=) 5...Be6 6.e3 Nd7 7.Nf3 h6 (7...cb5 8.ab5 Qc7 9.d3=) 8.Be2 (8.d4 cb5 9.cb5 Ngf6=) 8...cb5= 9.cb5 Nc5 (9...Ngf6 10.Nc3=) 10.d4 Bb3 11.Qd2 Na4 12.de5 d5 (12...Nb2 13.Qb2 a4 14.b6+=) 13.Ba3+= Rc8?? (better is 13...Bc5+=) 14.Nd4+– Nc5 15.0–0 (15.Bg4!? Ne4 16.Qb2 Ba3 17.Na3 Ba4 18.Bc8 Qc8+–) 15...Ne4 16.Qb2 Bc4 17.Bc4 dc4 18.Bf8 Kf8 19.Qa3 Ne7 20.Qa5 Qa5= 21.Ra5 Nd5 22.Rc1 c3 23.Ra7 Nb4 24.Na3 (better is 24.Rb7 Na2 25.Rd1+–) ½–½. Dessing,Bastiaan – Beijer,Bart, It (open) (b), 2003.

3.Bb2 Qc7 4.Nf3 d6 5.h3 Nf6 6.e3 Be7 7.Be2 e4 8.Nh2 0–0 9.0–0 Be6 10.Qc2 Nbd7 11.d4 d5 12.Nd2 Bb4 13.cd5 Bd5 14.Ng4 Ng4 15.Bg4 f5 16.Be2 Rae8 17.Nb3 Bd6 18.Bc4 Nb6 19.Bd5 cd5 20.Qc7 Bc7 21.Nc5 Nc4 22.Bc3 b6 23.Na6 Bd6 24.a4 Rc8 25.Bb4 Rfd8 26.Bd6 Rd6 27.Rac1 Kf7 28.f3 ef3 29.Rf3 Rf6 30.Nb4 Ke6 31.Kf2 a5 32.Nd3 Rb8 33.Ke2 b5 34.ab5 Rb5 35.Rff1 Kd6 36.Rb1 Rb1 37.Rb1 Re6 38.Nf4 Re3 39.Kf2 g5 40.Ne2 a4 41.Rb6 Nb6 42.Ke3 a3 43.Nc3 Nc4 44.Kf3 Ke6 45.g4 Nd2 46.Ke2 Nb3 47.Kd3 f4 48.Na2 f3 49.Ke3 Nd4 50.Nc1 Nc2 51.Kf3 Nb4 52.Ke3 a2 53.Nb3 Nc2 0–1. Hirt – Peters, corr DDR 1984.

3.Bb2 Qf6 4.Qb3 d6 5.g3 (5.Nf3 Bf5=) 5...Qg6 (5...Be6 6.Bg2=+) 6.Bg2 Be7 7.Nc3 Nf6 8.Nf3 0–0 9.0–0 Qh5 10.d4 e4 11.Nd2 d5 12.e3 Na6 13.b5 Nc7 14.a4 (14.bc6 bc6 15.cd5 Ba6 (< 15...Ncd5 16.Nde4 Ne4 17.Be4+/–) 16.dc6 Rab8+=) 14...Re8 (14...Ng4 15.h3 Nf6 16.Kh2=+) 15.f3 ef3 16.Nf3 dc4 17.Qc4 Ncd5 18.Rae1 (< 18.bc6 Ne3 19.Qb5 Qb5 20.ab5 bc6 21.bc6 Nf1 22.Kf1 a5–/+) 18...Be6 19.Qd3 (< 19.bc6 Ne3 20.Qb5 Nf1 (20...Ng2?! 21.Qh5 Nh5 22.cb7=) 21.cb7 Rab8 22.Kf1 Qb5 23.ab5 Bb4–/+) 19...cb5 20.ab5 Rac8 21.e4? (better is 21.Ne5=+) 21...Nc3–+ 22.d5? (22.Bc3 Bc4 23.Qe3 Bb5–+) 22...Nfd5! 23.ed5 (23.Qd5 Nd5) 23...Bf5 (better is 23...Nd5 24.Re5 Nb4–/+) 24.Qd2? (better is 24.Qd4 Bf6 25.Qa7–/+) 24...Bc5–+ (24...Nb5?! 25.Nd4 Bc5 26.Kh1 Nd4 27.Bd4 Re1 28.Re1–+) 25.Nd4 Ne2 (26.Kh1 Ng3 27.Kg1 Nf1 28.Rf1 Be4–+) 0–1. Hanisch,Joerg – Kettner,Juergen, Untergrombach op, 1992.

3.Bb2 Nf6 4.Be5 Bb4 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 c6).

3.Qb3 a5 4.b5 Bc5 (4...d5 5.cd5 Qd5 6.Qd5 cd5 7.Ba3=) 5.Bb2 (5.Qg3 d6 6.Qg7 Qf6 7.Qf6 Nf6+=) 5...f6 6.Nc3 Nh6 7.e3 d6 8.Na4 Nd7 9.Be2 Ba7 10.Bf3 Qc7 11.Ne2 Nc5 12.Nc5 dc5 13.d4 ed4 14.ed4 0–0 15.Ba3 Re8 16.0–0 (16.dc5 Qe5 17.Qb2+=) 16...cd4–/+ 17.c5 Be6 18.Qd3 cb5 19.Nd4? (19.Qb5 Nf5+=) 19...Bc4 (better is 19...Bb8 20.g3 Bc4–+) 20.Nb5+= Qf7 (better is 20...Qh2 21.Kh2 Bd3=) 21.Nd6?? (better is 21.Qb1 Bf1 22.Nd6+=) 21...Bd3–+ 22.Nf7 Nf7 23.Rfe1 Ba6 24.Bd5 g6 25.c6 Re1 26.Re1 bc6 27.Bc6 Rd8 28.Ba4 Bc4 29.h3 Ne5 30.Bb3 Bb3 31.ab3 Bf2! 32.Kf2 Nd3 33.Ke2 Ne1 34.Ke1 Rd3 35.Bb2 Kf7 36.b4 ab4 37.Ke2 Rd8 38.Ke3 f5 39.g3 Ke6 40.h4 b3 41.Bc3 Rd5 42.Bb2 Kd6 43.Bf6 Kc6 44.Kf4 Rd2 45.Kg5 b2 46.Bb2 Rb2 0–1. Amor Alcaide,Manuel (2115) – Sanchez Carazo,FJ (2000), La Lira op Barcelona, 1995.

3.Qb3 Na6 4.a3 Qf6 5.Bb2 d6 6.Nf3 Bf5 7.d4 e4 8.d5 Qd8 9.Nd4 Ne7 10.Nf5 Nf5 11.dc6 Rg8 12.cb7 Rb8 13.Qa4 Qd7 14.Qa6 Qb7 15.Qb7 Rb7 16.e3 Rb4 17.ab4 d5 18.c5 Bc5 19.bc5 Ne3 20.Bb5 Kd8 21.fe3 a6 22.Ra6 Ke7 23.Ra7 Ke6 24.Bd7 Ke7 25.Bf5 Kd8 26.c6 d4 27.Ba3 de3 28.c7 Ke8 29.Ra8# 1–0. Bonetti,Shane – Saevita, ICC, 2002.

3.Qb3 Nf6=+ 4.Bb2 d6 5.e3 Be7 6.d3 (6.d4 e4=+) 6...a5 7.b5 a4 8.Qc3 cb5 9.cb5 Bd7 (9...Nd5 10.Qd2=+) 10.Na3 (10.d4 Nd5 11.Qd3 Qa5 12.Kd1 Qb4=) 10...Nd5–/+ 11.Qd2 0–0 12.Nf3 Qa5 (12...Be6 13.Rc1=+) 13.Qa5 Ra5 14.e4 Nf6 15.Be2 (15.Rc1 Bb5 16.Bc3 Rc8+=) 15...Rc8 (< 15...Bb5 16.Bc3 (< 16.Nb5 Rb5 17.Ba3 Rc8=+) 16...Bd8 17.0–0–0= (< 17.Nb5 Rb5 18.d4 Ba5=)) 16.b6 Bd8 (16...Nc6 17.Rc1–/+) 17.Nc4 Rb5 18.Ba3 Bb6 19.Bd6 Bd4 20.Nd4 ed4 21.0–0 Nc6 22.Bd1 Ra8 23.f4 Be6 24.Rc1 Nb4 25.Rb1+= Nd3 26.Rb5 Bc4 27.Rb7 Ne4 28.Rb6? Ba2–+ 29.Ba4 Nd6 30.Rd6 Nc5 31.Bc6+= Rb8? 32.Rd4+– h6 33.Kf2 Rb2 34.Kg3 g5 35.fg5 hg5 36.Rf5 Ne6 37.Rd7 Rc2 38.Bf3 Nc5 39.Rg5 Kf8 40.Ra7 Bb3 41.Bd5 Ne6 42.Rf5 Bd5 43.Rd5 Rg2 44.Kg2 Nf4 45.Kg1 Nd5 46.h3 f5 47.Kf2 Ne7 48.h4 Nc6 49.Rb7 Ne5 50.Kg3 Nd3 51.h5 Ke8 52.h6 Kd8 53.h7 f4 54.Kh4 Kc8 55.Rf7 f3 56.h8Q# 1–0. SuperForte – REXChess, 1994.

3.b5 (--> 1.b4 e5 2.b5 c6 3.c4).

3.Nc3 Bd6 4.e3 (4.Rb1 Nf6=) 4...Nf6 5.Qc2 (5.a3 Bc7=) 5...0–0 6.Bb2 Qe7 (6...Bb4 7.a3 Bc3 8.Bc3–/+) 7.Bd3 Rd8 (better is 7...Bb4!? 8.Ne4 Ne4 9.Be4 g6–/+) 8.Ne4 Ne4 9.Be4 1–0. De Visser,Arnold W – Terpstra,Wiep, NED–ch fin corr, 1989.

3.c5 d6 4.cd6 Bd6 5.a3 Nf6 6.e3 a5 7.b5 0–0 8.Nf3 (8.Nc3 Bg4 9.Be2 Qd7+=) 8...e4 9.Nd4 c5 10.Nc2 Be5 11.Nc3 Bc3 (better is 11...Bg4!? 12.Be2 Be2 13.Qe2 Qd3–+) 12.dc3+= Qd1 13.Kd1 Nbd7 14.Be2 Ne5 15.Ne1 (15.Bd2 Nfg4 16.Rf1 Nh2–+) 15…Nfg4 (15...Nfg4 16.Kc2 Nf2–/+) 0–1. Fournier,Frederic – Mephisto Mondial, Match Thematique, 2000.

3.c5 f6 4.Bb2 d5 5.d4 ed4 6.Bd4 a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 b6 10.Bd4 bc5 11.bc5 Bc5 12.e3 Bd4 13.Qd4 Qa5 14.Nd2 Ba6 15.Ba6 Na6 16.Qa7 Kd8 17.Qg7 Qa1 18.Ke2 Nb4 19.Qh8 1–0. Kucharkowski – Guenther, Freital 1982.

3.Nf3 e4–/+ 4.Nd4 Bb4 5.Nc3 (5.Bb2 Nf6–/+) 5...Bc3 (5...e3 6.fe3 Bc3 7.dc3–/+) 6.dc3–/+ Ne7 (6...d6 7.Bf4–/+) 7.Bg5 (7.Qc2 Qa5–/+) 7...0–0 (7...d6 8.Qc2 h6 9.Bf4–/+) 8.Qd2 (8.c5 Qa5 9.Rc1 Qc5 10.Be7 Qe7–+) 8...d5 (8...d6 9.Qe3–/+) 9.g3 (9.cd5 cd5 10.Rb1 f6–/+) 9...h6 (9...dc4 10.Rd1–+) 10.Be3 (10.Be7 Qe7 11.cd5 cd5–/+) 10...Nd7 (10...dc4 11.Bg2–+) 11.Bg2–/+ Ne5 12.cd5 cd5 (< 12...Qd5 13.Qc2 Nf5 14.Be4 Ne3 15.fe3=+) 13.0–0 Nc4 14.Qc1 Nc6 (14...Nf5 15.Bf4–/+) 15.a4 (15.f3 ef3 16.ef3 Re8–/+) 15...Bd7 (15...Qe7 16.Rd1–/+) 16.f3 Ne3 (16...ef3!? 17.Nc6 Qe8 (< 17...fg2 18.Nd8 gf1Q 19.Qf1=+) 18.Rf3 Bg4 19.Bh6 Qc6–/+ (19...bc6? 20.Qg5 Qe5 21.Qg4+–; 19...gh6?! 20.Rf4 bc6 21.Rg4 Kh7 22.e4=; < 19...Bf3 20.Qg5 Qe3 21.Qe3 Ne3 22.Ne7 Kh7 23.Be3 Bg2 24.Kg2+/–)) 17.Qe3=+ Nd4 (17...ef3 18.Qf3 Be6 19.Rad1=+) 18.cd4 Bc6 (18...ef3 19.Qf3 Be6 20.Rab1=+) 19.a5 Qg5 (19...ef3 20.Qf3 Qe7 21.Rf2=+) 20.f4 (20.Qg5 hg5 21.fe4 de4=+) 20...Qe7 (20...Qh5 21.Rac1–/+) 21.f5 f6 22.g4 Bb5 23.Rfb1 a6 24.Qb3 Bc4 25.Qb2 Rf7 26.e3 Rc8 27.Bf1 g6 28.Be2 gf5–/+ 29.gf5 Rg7 30.Kh1 Qd7 31.Rg1 Qf5 32.Rg7 Kg7+– 33.Rg1 Kh8 34.Bg4 +=. Roever – Tuchtenhagen,Harald, corr SOK–88–19, 1988.

3.a3 a5

4.Bb2 ab4 5.ab4 (5.Be5 Nf6= 6.ab4 Ra1 7.Ba1= –0.09) 5...Bb4?? (5...Ra1 6.Ba1 f6+= (6...Bb4? 7.Be5 Nf6 8.Bb8+–) 7.Bc3+= –0.31) 6.Ra8+– (6.Ra8 Qc7 7.Qb3+–) 1–0. Giache,Gianluca – Akman,Ozgur, corr ICCF WSTT–3–06–1, 2006.

4.Bb2 d6 5.b5 (5.e3 ab4 6.ab4 Ra1 7.Ba1=; 5.Nf3= Nf6 6.Nc3 ab4 7.ab4=; 5.Qb3 Nf6 6.d4 e4 7.d5+=) 5...Be6 6.e4 Nf6 7.Nc3 =.

4.Bb2 f6 5.b5 cb5 6.cb5 d5 7.d4 =.

4.b5 cb5 5.cb5 d5 6.d4 Bd6 7.Nc3 =.

4.b5 Qb6 5.Nc3 cb5 6.Nb5 d5 7.e3 =.

4.b5 Bc5 5.e3 (5.Nf3 d6 6.d4 ed4 7.Nd4=) 5...cb5 6.Bb2 d6 7.d4 =.

4.b5 d5 5.bc6 bc6 6.cd5 cd5 7.d4 =.

4.b5 d5 5.cd5 cd5 6.d4 Bd6 7.Nc3 =.

4.b5 d5 5.e3 Nf6 6.Bb2 (6.d4 ed4 7.Qd4 c5=) 6...d4 (6...e4 7.cd5 cd5 8.d3=) 7.Nf3= de3 8.fe3 (8.de3 Qd1 9.Kd1 Ne4=) 8...e4+= 9.Ne5 Bd6 10.d4 Be5 11.de5 Qd1 12.Kd1 Ng4 13.Ke2 Be6 14.Nd2 Nd7 15.Rc1 (15.Ne4 Bc4 16.Kd2 cb5+=) 15...Nge5–/+ 16.Ne4 Nc4 (16...Bc4 17.Kd2 Bf1 18.Nd6 Ke7 19.Nf5 Kd8 20.Rhf1 cb5 21.Be5 Ne5 22.Ke2+=) 17.bc6 bc6 18.Bg7 Rg8 19.Nf6 (19.Bd4!?+=) 19...Nf6–/+ 20.Bf6 Rg6 21.Bd4 (21.Bc3 Na3 22.Ra1 Nc4–+) 21...Na3 22.Kf3 (22.Kd2 Bd5–/+) 22...Nb5–+ 23.Ba1 Bg4 (23...f5 24.Bc4–+) 24.Kf4 (24.Kf2 Nd6–/+) 24...Bd7 25.h3 a4 26.g4 a3 27.Bd3 Ra4 28.Kf3 f5 29.gf5= Rg5 30.f6 Rh5 31.Rcg1 Bf5 32.Rg8+= Kf7 33.Rg7 Kf8 34.e4 Bg6 35.Ke3 Nd6 36.e5 Nf5 37.Bf5 Bf5 38.Bd4 Rc4 39.Ra7 c5 40.Ba1 Rg5?? 41.Rd1+– Rg3 42.Kf2 Rd3 43.Rd3 Bd3 44.e6 Be4 45.Be5 (45.Be5 Rc2 46.Ke3 Rc3 47.Ke4 Rc4 48.Kd5 Rd4 49.Bd4 cd4 50.Ra8#) 1–0. Margraf – Schuehler,Ernst, corr SOK–87–09, 1987.

4.b5 d6 5.e4 (5.Nc3 Nf6 6.d4 ed4 7.Qd4=; 5.e3 Nf6 6.d4 e4 7.Nc3=; 5.d4 ed4 6.Qd4 Be7 7.Nc3=; 5.Qa4 Nf6 6.Nc3 Be7 7.e4=) 5...cb5 6.cb5 Nf6 7.Nc3 =.

4.b5 Ne7 5.Bb2 (5.d4 ed4 6.Qd4 d5 7.cd5=) 5...Ng6 6.d4 d5 7.e3 =.

4.b5 Nf6= 5.d4 (5.Bb2 d5 6.cd5 Qd5 7.Nc3=) 5...ed4 6.Qd4 d5 7.cd5 =.

3.a3 d5

4.Bb2 f6 5.e3 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 c6 5.c4).

4.cd5 cd5 5.Bb2 d4 6.Nf3 f6 7.e3 de3 8.de3 Qd1 9.Kd1 Be6 10.Bb5 (10.Nbd2 Nd7=) 10...Nc6 11.Nc3 Rd8 12.Ke2 a6 13.Bc6 bc6 14.Rhd1 Rd1 15.Rd1 Bg4 (15...c5 16.bc5 Bc5 17.Ne4=) 16.h3 Bh5 (16...Be6 17.Rc1+=) 17.g4 (17.e4 Bf7+=) 17...Bf7= 18.Nd2 Ne7 19.e4 (better is 19.Rc1!?+=) 19...Ng6+= 20.Kf3 (20.Ke3 Nf4 21.Ne2 Nh3+=) 20...Be7 (20...Nf4 21.h4–/+) 21.Na4 (21.Ne2 0–0=) 21...0–0 (better is 21...h5 22.g5 fg5+=) 22.Nb6?? (better is 22.Rc1=) 22...Rd8–+ 23.Bc3?? Rd3 (23...Rd3 24.Ke2 Rc3–+) 0–1. Fournier,Frederic (1710) – qaqao@chesscube.com (1635), Active, 2011.

4.cd5 cd5 5.Bb2 Bd6 6.e3 Nf6 7.Nf3 e4 8.Nd4 0–0 9.Be2 a5 (9...Nc6 10.d3+=) 10.b5= b6 (10...Nbd7 11.d3=) 11.0–0 Qc7 (11...Ra7 12.Nc3=) 12.h3 (12.f4 Nbd7=) 12...Bb7 (12...Re8 13.Nc3=) 13.Nc3 Bh2 (13...Be5 14.d3=) 14.Kh1 Be5 15.Na4 (15.d3 Rc8=) 15...Nbd7 16.Rc1 Nc5 17.f3 (17.d3 Rac8=) 17...Rfc8 (17...Nh5 18.Nf5 Bb2 19.Nb2 Ng3 20.Ng3 Qg3 21.d4 ed3 22.Bd3+=) 18.f4+= Bd6 19.Nf5 Qd8 20.Bd4 (20.Bf6 A) worse is 20...gf6 21.Bh5 (21.Nd6?! Qd6 22.d3 f5+=) 21...Kf8 22.Nc5 Rc5 23.Qg4+– (23.Nd6?! Qd6 24.d3 Rac8 25.Rc5 Qc5=); B) 20...Qf6 21.Nb6 Qf5+=) 20...Na4 (20...Bf8 21.d3=) 21.Qa4 Bc5 22.Be5 h6 23.Nd4 Qe7= 24.Nc6 Bc6+= 25.bc6 Ba3 26.Rc2 Bc5 27.Bb5 Nh5 28.Rfc1 Ng3 29.Kh2 Nf5 30.g4 Nh4–/+ 31.Bb2 Nf3 32.Kg2 Bb4 33.Rd1 Bd6 34.Qa1 g5 35.Bf6 Qc7 36.Bh8 f5 37.Qf6 fg4 38.hg4–/+ Nh4 39.Kh1 gf4 40.Qh4 Kh8 41.Qh6 Qh7 42.Qh7 Kh7 43.ef4 Bf4–/+ 44.Ba4 Kg6 45.Bb3–/+ d4 46.Be6 Rh8 47.Kg1 Kf6 48.Bf5+= e3 49.de3= de3 50.Rd4 Kg5 51.Rd5 Rad8 52.Bd7= Kg6 53.c7 e2 54.Re2 Bc7 55.Re6 Kg7 56.Rg5 Kf7 57.Rf5 Kg8 58.Rg5 Kf7 59.Rf5 Kg7 60.Rg5 Kf7 ½–½. Gross,Wilhelm – Fritz2, 1994.

4.cd5 cd5 5.Bb2 Bd6 6.Nf3 f6 7.e3 Be6 8.Nc3 Ne7 9.Nb5 0–0 10.Nd6 Qd6 11.Be2 Nd7 12.0–0 Rfc8 13.a4 Nb6 (13...Qb4? 14.Ba3 Qb6 15.Be7+–) 14.d3 Rc7 15.a5 Nd7 16.Ba3 b5 17.d4 a6 18.Nd2 Bf5 19.Qb3 Bc2 20.Qa2 Rac8 21.Rac1 ed4 22.ed4 Qf4 23.Nf3 Bb3 24.Qb3 Rc1 25.Bc1 Rc1 26.g3 Rf1 27.Bf1 Qc1 28.Kg2 Nb8 29.Bd3 Nbc6 30.h4 h5 31.Bc2 Kf8 32.Bd3 Qa1 Attacks the isolani on d4 33.Be2 Nd4 34.Nd4 Qd4 35.Bh5 Nc6 36.Bg6? Nb4 37.Qf3 Qe5 38.Qg4–/+ f5?? 39.Qb4+– (39.Qb4 Qe7 40.Qc3 Qe4 41.Kh2+–) 1–0. Ackaert,T (2060) – Gheury,J (1835), Pays de Charleroi Open, 2011.

4.cd5 cd5 5.d4 Bd6 =.

4.e3 a5 5.Bb2 ab4 6.ab4 Ra1 7.Ba1 e4 (7...Bb4? 8.Be5 Nf6 9.Bb8+–) 8.Nc3 Nf6 9.c5 Be7 10.d4 (10.d3 ed3 11.Qd3 b6 12.cb6 Bb4–/+) 10...0–0 11.Nge2 Bg4 12.h3 Bh5 (12...Bf5 13.Ng3 Be6 14.Be2+=) 13.g4 (13.Qd2 b5=) 13...Bg6+= 14.Ng3 Nbd7 (14...Nfd7 15.b5+=) 15.Bg2 (15.h4 h6=) 15...Qc7 (15...b5 16.h4 h6 17.Bb2=) 16.0–0 (16.g5 Ne8=) 16...Ra8 17.Bb2 (17.g5 Ne8 18.h4 f6+=) 17...Nf8 (17...h6 18.Qe2+=) 18.Qb3 Ne6 19.Ra1 Ra1 20.Ba1 h5 (20...b5 21.Qa2+=) 21.gh5= Nh5 22.Nh5 Bh5 23.b5 (23.Nd5!? cd5 24.Qd5=) 23...Ng5+= 24.bc6 bc6 25.Qb6 Qc8 26.Kh2 (26.Qa7 Bd8 27.Kf1 Nh3 28.Ke1–+) 26...Bf3 27.Bf3 Qh3 (27...Qh3 28.Kg1 Nf3) 0–1. Fournier,Frederic – Mephisto Mondial, Match Thematique, 2000.

4.e3 a5 5.Bb2 dc4 6.Bc4 b5 =.

4.e3 a5 5.b5 cb5 6.cb5 Nf6 7.Bb2 Bd6 8.Nf3 e4 9.Nd4 0–0 10.Be2 Qc7 11.h3 Nbd7 12.Nc3 b6 13.Rc1 Nc5 14.0–0 Bb7 15.a4 Be5 16.Nf5 Qd7 17.Bg4 Ng4=+ 18.hg4 Nd3–/+ 19.Qb3 Nc1–+ 20.Rc1 d4 21.Ne2 h5 22.Ned4 hg4 23.g3 g6 24.Nh4 Qd5 25.Qd1 Qa2 26.Bc3 Bd4 27.Bd4 Qe6 28.Rc7 Rab8 29.Ng2 g5 30.Ne1 Rfc8–+ 31.Rc3 Rc3 32.dc3 Rd8 33.Nc2 Bd5 34.Kg2 Bb3 35.Qh1 f6 36.Ne1 Ba4 37.c4 Bb3 38.Qh5 Rd6 39.Qg6 Kf8 40.c5 Rd5 41.cb6 Rb5 42.Qh7 Qf5 43.Qh8 Kf7 44.Qb8 Kg7 45.Qc7+/– Bf7 46.b7 a4 47.b8Q Rb8 48.Qb8 a3 49.Qb4 a2 50.Ba1 Qh7 51.Qb2 Qh6 52.Nc2 Qg6 53.Nd4 Kh7 54.Qb7 Kg7 55.Qa7 Kh6 56.Qa8 Kg7+/– 57.Qc8 Qh5 58.Nf5 Kg6 59.Ne7 Kg7 60.Qc6 Kf8 61.Qe4 Qh3 62.Kg1 Kg7 63.Nf5 Kg6 64.Qd4 Qh8 65.Qg4 Qb8 66.Ne7 Kh6 67.Qd4 Qe5 68.Nc6 Qd4 69.Nd4 g4 70.Kf1 Bc4 71.Ke1 Kg6 72.f4 gf3 73.Nf3 Kf5 74.Kf2 Bd5 75.Nd2 Bc6 76.Bd4 Bb7 77.Nb3 Be4 78.Nc5 Bc6 79.Nd3 Bd5 80.Nf4 Bf7 81.Ke2 Kg4 82.Kf2?? Kf5 83.Kg2 Be8 84.Kh3 Bd7 85.Kh4 Ke4 86.Nh5 Bc6 87.Nf6 Kd3 88.g4 Kc2 89.g5 Kb1 90.g6 Bb5 91.g7 Bc4 92.Kg4 a1Q 93.Ba1 Ka1 94.e4 Bf7 95.Kf5 Kb2 96.e5 Bc4 97.e6 Kc2 98.g8Q Kb2 99.Ke5 Kc3 100.Qg4 Kb3 101.e7 Bb5 102.Kd5 Kc3 103.Qd4 Kb3 104.Ne4 Be8 105.Qc4 Kb2 106.Qc3 Ka2 107.Nd2 Ba4 108.e8Q! Bc6 109.Kc5 Be8 110.Qb3 Ka1 111.Qb1# 1–0. NN – REXChess, 1994.

4.e3 dc4 5.Bc4 b5 6.Bb3 =.

4.e3 Bd6 5.Bb2 Nd7 6.Nf3 Ne7 7.Nc3 0–0 8.Rc1 a6 (8...a5 9.cd5 ab4 10.ab4 Bb4 11.dc6 Nc6 12.Nd5=) 9.Be2 (9.cd5 cd5 10.Be2 Nc6=) 9...Nf6 (9...a5 10.c5 Bb8 11.0–0+=) 10.d4 e4 11.Ne5 Ne8 12.h3 Be6 13.0–0 f6 14.Bg4 (14.cd5 cd5 15.Bg4 Nc7 16.Be6 Ne6=) 14...Nc7 (14...Bg4 15.Ng4 f5 16.Ne5+=) 15.Be6 (15.Nc6 bc6 (worse is 15...Nc6 16.Be6 Ne6 17.cd5+/–) 16.c5 a5=) 15...Ne6 16.Ng4 Bc7 (16...f5 17.cd5 Nd5 18.Ne5+=) 17.f4 (17.Qe2 Rc8=) 17...f5 (17...ef3 18.Rf3 dc4 19.Qe2–+) 18.cd5 Nd5 19.Nd5 Qd5 20.Nf2 (20.Ne5 Be5 21.de5 Rad8+=) 20...Bd6 21.Qc2 a5–/+ 22.Qc4 ab4–+ 23.ab4 Nc7 24.g4 g6 25.Qc3 Ra4 26.Qc2 Ra2 27.Ra1 Rfa8 28.Ra2 Ra2 29.gf5 gf5 30.Nd1 Bb4–+ 31.Kh1 Qf7 32.Rg1 Kf8–/+ 33.Nc3 Bc3 34.Qc3 Nd5 35.Ba3 Ke8 36.Qa5 Kd7 37.Qa7 Nc7 38.Qc5 Nb5?? 39.Qe5+/– Ra3 40.Rg7 Qg7 41.Qg7 Kc8 42.Qg8 Kc7+= 43.Qh7 Kb6 44.Qf5 Re3 45.Qc5 Ka6 46.Kg2 Rd3 47.f5 e3 48.Kf1 Rd4 49.Ke2 Re4 50.f6+/– Nd4 51.Kd3 e2 52.Qa3 Kb5 53.Ke4 e1Q 54.Kd4 Qh4 55.Ke5 Qg5 56.Ke6 Qd5 57.Ke7 Qe5 58.Kf7 c5 59.Qb3+– Ka5 60.Qe6 Qg5 61.Ke8+– Qg6 62.Kd7 c4?? 63.f7 Qh7 64.Kc8 Qh8 65.Kc7 Qf8 66.Qd5 b5+/– 67.Qd2 Ka4 1–0. Schoppmeyer,Herbert – Speer,Albrecht, OWL–ch Loehne, 1971.

4.e3 Be6 5.cd5 Bd5 6.Nf3 Nd7 7.Bb2 Bd6 8.Nc3 Be6 9.Ne4 Bc7 10.Neg5 Bg4 11.Qb3 Nh6 12.Bc4 0–0 13.h4 Qe7 14.Nh2 Bh5 15.g3 Nb6 16.Bd3 Rad8 17.Bh7+= Kh8 18.Bc2 Nd5 19.g4 Bg6 20.Bg6+/– fg6 21.0–0–0 Nf6?? 22.Qe6 Rfe8 23.Qe7 Re7 24.e4 Rd3? 25.Kc2+– Red7 26.Ne6 Bb8?? 27.Nf8 Rd8 28.Ng6 (28...Kh7 29.Nf8 Rf8 30.Kd3 Nhg4 31.Ng4 Ng4 32.Rdf1 Rf2 33.Rhg1+–) 1–0. Schmid,Hans Rudolf (1770) – Hennet,Jerome (1670), SUI–ch Hauptturnier II, 1999.

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

3.a3 d6

4.Bb2 a5 5.b5 =.

4.Bb2 g6 5.Nf3 Bg7 6.e3 Nd7 (6...Nf6 7.d4=) 7.Be2 Ne7 8.0–0 0–0 9.Nc3 a6 10.Qc2 b5 11.cb5 cb5 (11...ab5 12.d4=) 12.Rac1 Bb7 13.Rfd1 Rc8 14.Qb1 (14.d4 Nd5+=) 14...Nb6 15.d3 h6 16.Rd2 Nf5 17.Rdc2 Qd7 18.Nd1 (18.Kh1 d5=) 18...Rfe8 (18...Rc2 19.Rc2 Ne7 20.Qc1=) 19.Rc8 Rc8 20.Rc8 Qc8 21.e4 Nd4 22.Nd4+/– ed4 23.Qa1 d5 24.Bd4 Bd4 25.Qd4 Qe6 26.f3 Nd7 27.Kf2 Qe5 28.Qe5+– Ne5 29.Ke3 Nd7 30.Nc3 de4 31.fe4 Nb6 32.Bf3 Kf8 33.Kd4 Ke7 34.e5 Bf3 35.gf3 Ke6 36.Ke4 g5 37.h3 h5 38.f4 g4 39.hg4 hg4 40.f5 Ke7 41.Kf4 f6 42.ef6 Kf6 43.Kg4 Ke5 44.Ne4 Nd5 45.Kg5 Nc7 46.f6 Ne6 47.Kg6 Nf4 48.Kh7 Ne6 49.f7 Kf5 50.Kg8 Kg6 51.f8Q Nf8 52.Kf8 Kf5 53.Ke7 Ke5 54.Kd7 Kd4 55.Nc5 Kc3 56.Kc6 Kb2 57.d4 Ka3 58.Na6 Ka4 59.Kb6 Kb3 60.Kb5 (60.Kb5 Kb2 61.d5 Kc3 62.d6 Kd4 63.d7 Ke4 64.Nc5 Ke5 65.d8Q Kf5 66.Qd5 Kf4 67.Kc6 Ke3 68.b5 Kf4 69.b6 Kg3 70.b7 Kf4 71.b8Q Kg4 72.Qbg8 Kf4 73.Qgg5) 1–0. Fournier,Frederic – Fancelli,Luc, Ch Picardie, 2000.

4.Nc3 A) 4...Nf6 5.d4 ed4 6.Qd4 a5 7.b5=; B) 4...Be7 5.e4 (5.Nf3 f5 6.d4 e4 7.Nd2= –0.12; 5.d4 ed4 6.Qd4 Bf6 7.Qd2=) 5...Nf6 6.Nf3 a5 7.b5=; C) 4...Be6 5.e4 Nd7 6.Nf3 a5 7.b5=; D) 4...a5 5.b5 Nf6 6.d4 ed4 7.Qd4=.

3.a3 Nf6

4.Bb2 Qc7 5.Nc3 d6 6.e3 Be6 7.Rc1 a5 8.Nf3 ab4 9.ab4 Be7 10.Be2 0–0 11.Ng5 Bf5 12.g4 Bg6 13.e4 Ng4 14.Bg4 Bg5 15.h4 Bf4 16.h5 f5 17.hg6 fg4 18.Qg4 h6 19.Qe6 Kh8 20.Ne2 Na6 21.Nf4 (21.Bc3 Qd8=) 21...Rae8 (21...Rf4 22.c5 Re4 23.Kf1=+) 22.Rh6?? (Better is 22.Bc3+=) 22...gh6–+ 23.g7 Qg7 24.Ng6 Kh7 25.Nf8 Rf8 26.Qd6 Qg1 27.Ke2 Qf2 (27...Rf2 28.Kd3 Qg2 29.Qe7 Kg8 30.Bc3 Qg3 31.Kc2+–) 28.Kd3 Qf3 29.Kc2 Qe4 30.Kb3 Rf3 31.Bc3 b5?? (Better is 31...Rf7+=) 32.Qe7+– Kh8 (32...Kg6 33.Rg1 Kh5 34.Rh1 Kg6 35.Qe6 Rf6 36.Rg1 Kh5 37.Qf6 Qb1 38.Rb1 Nc5 39.bc5 bc4 40.Kc4 Kg4 41.Rg1 Kh5 42.Qe5 Kh4 43.Qh2) 33.Qe8 (33.Rg1 Rc3 34.dc3 Qc4 35.Kb2+–) ½–½. Quast,Michael – Volz,Harald (2015), Bayern–chI Bank Hofmann 1st, 1997.

4.Bb2 d5 5.Be5 (5.cd5 Qd5 6.Nc3 Qd6 7.e4+=) 5...dc4 6.Nf3 b5 7.d3 +=.

4.Bb2 d6 5.Qc2 a5 6.Nf3 ab4 7.ab4 +=.

4.Bb2 d6 5.Nc3 Bf5 6.Nf3 a5 7.b5 =.

4.Bb2 d6 5.d4 e4 6.Nc3 Be7 7.d5 =.

4.Bb2 d6 5.e3 Be7 6.d3 Be6 7.Nf3 h6 8.Be2 0–0 9.0–0 Nbd7 10.Nbd2 Re8 11.Qc2 Bf8 12.Rfe1 Qc7 13.Rac1 Rac8 14.d4 Bg4 15.de5 de5 16.h3 Bh5 17.c5 Bg6 18.e4 Bh7 19.Bd3 Rcd8 20.Nc4 g5 21.Qc3 Bg7 22.Nd6 Re7 23.Rcd1 Nh5 24.g3 Re6 25.Bc4 Re7 26.Rd2 Nhf6 27.Nf7 Rf7 28.Ne5 (28.Bf7 Kf7 29.Ne5 Ne5 30.Rd8 Qd8 31.Qb3 Ke7 32.Be5 Bg8 33.Bd6 Ke8+/–) 28...Ne5 29.Qe5 Qc8 30.Rd8 (30.Be6 Rd2 31.Bc8 Rd8+–) 30...Qd8 31.Qd6 (31.Bf7?! Kf7 32.Qd6 Qe7+–) 31...Qe8? (31...Qd6 32.cd6 Kf8 33.Bf7 Kf7+–) 32.Bf6 Bf6 (32...Bf8 33.Qe5 Qe5 34.Be5 Be7+–) 33.Qf6 Kf8 34.Bf7 Qf7 35.Qh6 Ke8 (35...Qg7 36.Qe6 Bg6 37.Rd1+–) 36.Qg5 Kd7 (36...Qd7+–) 37.Rd1 Kc7 (37...Qd5 38.ed5 a5 39.d6 Ke6 40.Re1 Be4 41.Re4 Kd7 42.Qe7 Kc8 43.Qe8) 38.Qd8 1–0. Fournier,Frederic (2175) – Airboy (1920), Chess.com, 2013.

4.Bb2 d6 5.e3 Be7 6.d4 e4 7.Nc3 =.

4.Bb2 d6 5.Nf3 a5 6.Nc3 ab4 7.ab4 =.

4.d4 ed4 5.Qd4 d5 6.cd5 cd5 7.Nf3 =.

4.d4 e4 5.Nc3 (5.Bg5 Be7 6.Nc3 d5 7.cd5=) 5...Be7 6.Bf4 0–0 7.e3 =.

3.Bb2 Bb4

4.Be5 f6 5.Bb2 d5 6.e3 dc4 7.Bc4 Nh6 8.Qh5 Kf8 9.h3 Qe7 10.Nf3 Bf5 11.0–0 Nd7 12.a3 Bc5 13.d4+= Bg6 14.Qh4 Bd6 15.Nbd2 Bc2 16.e4 Ba4 17.Rfe1 b5 18.Ba2 Nf7 19.e5 g5?? 20.ed6 Qe1 21.Re1 gh4 22.Re7 Rd8 23.Rf7 Ke8 24.Bc1 Bc2 25.Ne4! Be4 26.Re7 Kf8 27.Bh6# 1–0. pumpkin (2300) – rudycfls (1865), net–chess.com, 2005.

4.Be5 f6 5.Bb2 Ne7 6.Qb3 c5 7.Nf3 Nbc6 8.a3 Ba5 9.e3 d6 10.Be2 Bc7 11.0–0 Na5 12.Qd1 Be6 13.d3 0–0 14.Nbd2 b6 15.d4 Nb7 16.d5 Bd7 17.Qc2 Qe8 18.Bd3 g6 19.Qc3 Nd8 20.Ne4 Qf7 21.Nfg5 Qg7 22.Nf6 Rf6 23.Qf6 Qf6 24.Bf6 Nf5 25.Nf3 Nf7 26.e4 Ng7 27.Rfe1 Nh5 28.g3 Nf6 29.Nd2 Ne5 30.Be2 Re8 31.f4 Nf7 0–1. Hilton,Stephen – Hasler,Ulrich, corr or01–013, 2001.

4.Be5 f6 5.Bc3 Bc3 6.Nc3 Ne7 =.

4.Be5 Nf6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 c6).

4.Be5 Nf6 5.e3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 c6).

4.Be5 Nf6 5.e3 0–0 6.Nf3 d5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 c6).

4.Be5 Nf6 5.Nf3 0–0 6.e3 d5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 c6).

3.Bb2 d6

(--> 1.b4 e5 2.Bb2 d6 3.c4 c6).

4.e3 (--> 1.b4 e5 2.Bb2 d6 3.e3 c6 4.c4).

4.e3 f5 5.Nf3 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.Nf3 c6).

3.Bb2 Bd6

(--> 1.b4 e5 2.Bb2 Bd6 3.c4 c6).

4.Nf3 Qe7 (--> 1.b4 e5 2.Bb2 Bd6 3.Nf3 Qe7 4.c4 c6).

3.Bb2 e4

4.Qc2 d5 5.e3 (--> 1.b4 e5 2.Bb2 e4 3.e3 d5 4.c4 c6 5.Qc2).

4.c5 b6 5.d4 (5.Qc2 f5=) 5...bc5 (5...d5 6.e3+=) 6.dc5= Nf6 (6...a5 7.Qa4=) 7.e3 (7.Be5 Ng4 8.Bd4 e3 9.fe3 d6+=) 7...a5 (7...d6 8.Bc4=) 8.a3 (8.Qa4 Ba6=) 8...ab4 (8...d5 9.Nd2=) 9.ab4 Ra1 10.Ba1 Ba6 (10...d6!?+=) 11.Ba6 (11.Be5 d6 12.cd6 Bf1 13.Kf1 Nbd7=) 11...Na6 12.Qa4 Nc7 13.Nc3 (13.Nd2 Ncd5+=) 13...Qa8= 14.Qa8 Na8 15.Nge2 Nc7 16.Kd2 d5 (16...d6 17.Ng3 d5 18.Nce2+=) 17.Na4 (17.Nd4 Kd7 18.Na4+=) 17...Be7 (better is 17...Ng4!? 18.Nd4 Ne5+=) 18.Nd4+/– Ng4 19.f3 (19.Nc6 Nf2 20.Rb1 Nd3+/–) 19...Ne5 20.fe4 (20.Ke2 Bf6+/–) 20...de4 21.Nf5 Bf6 22.Nd6 Ke7+= 23.Be5 Be5= 24.Ne4 Nd5+= 25.g3 Nb4 26.Rb1= Rb8 27.Nec3 Bc3 28.Nc3= Rd8 29.Ke2 Nd5 30.Rb7 Kf8 31.Nd1 Re8 32.Kd3 f5 33.Kd4 h6 34.h3 h5 35.h4 Re4+= 36.Kd3 Rg4 37.Rb8 Kf7 38.Rc8 Rg3 39.Kd4? Rg4 40.Ke5 Ne7 41.Rc7 Re4 42.Kd6 Re6 43.Kd7 Re5 44.Rc6? Nc6 45.Kc6 Ke6 46.Kb6 Kd7 47.Nc3 Re3 48.c6 Kc8 49.Nd5 Re4 50.c7 f4 51.Kc6 Re6 52.Kc5 Re5 (52...Re5 53.Kd4 Rd5 54.Ke4 g5 55.Kd5 f3 56.hg5 f2–+) 0–1. Florio – Pini,Loris, corr, 1972.

4.c5 d6 5.cd6 Bf5 6.Qc2 +=.

4.e3 Nf6 5.a3 d5 (--> 1.b4 e5 2.Bb2 e4 3.e3 d5 4.a3 Nf6 5.c4 c6).

3.Bb2 f6

(--> 1.b4 e5 2.Bb2 f6 3.c4 c6).

4.a3 d5 5.e3 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 c6 5.c4).

4.b5 (--> 1.b4 e5 2.Bb2 f6 3.b5 c6 4.c4).

3.Qb3 d5

4.e3 Be6 5.Bb2 Bd6 6.Nf3 Nd7 7.d3 Ngf6 8.d4 e4 9.c5 ef3 10.cd6 fg2 11.Bg2 –/+.

4.e3 Be6 5.Bb2 Bd6 6.Nf3 Nd7 7.d3 h6 8.Nbd2 Ngf6 9.c5 Bc7 10.Qc2 0–0 11.Be2 a5 12.a3 Qe7 13.0–0= Rfc8 14.e4 d4 15.Rfc1 b6 16.cb6 Bb6 17.ba5 Ra5 18.Nc4 Bc4 19.Qc4 Bc5 20.Qb3 Rca8 21.g3 Ba3–/+ 22.Ba3 Ra3 23.Ra3 Qa3 24.Qa3=+ Ra3 25.Rc6 Kf8 26.Rc7 Ra5 27.Nh4 Ra1 28.Bf1 g6–/+ 29.Rc2 Ne8 30.f4 f6 31.Ng6 +=. Kjaerstad,Eivind J – Bangsgaard,Carsten, corr Nordisk cup, 1991.

4.e3 Be6 5.Bb2 Bd6 6.Nf3 Nd7 7.d4 e4 8.c5 Bc7 =+.

4.e3 Be6 5.Bb2 Bd6 6.Nf3 Nd7 7.d4 e4 8.Nfd2 Qg5 9.g3 (9.Nc3 Ngf6=+) 9...Ne7 10.h4 Qg6 11.a4 Bg3?? (better is 11...dc4!? 12.Bc4 Bc4 13.Nc4 Nd5–/+) 12.Rg1 (12.h5 Qg4 13.fg3 Qg3 14.Kd1 dc4 15.Bc4 Bc4 16.Qc4=+) 12...Bf2= 13.Kf2 Qh5 (13...Qf6 14.Ke2 Qh4 15.Kd1=) 14.Rh1 Nf5 15.Be2 Qg6 16.Nf1 (16.Rg1 Qh6 17.h5 dc4=) 16...Qf6 (16...dc4 17.Qc2=) 17.Ke1 Nh4 18.Rh2 Qg5 (18...Nf3 19.Bf3 ef3 20.Nbd2=) 19.Nc3 Nf6 20.cd5 cd5 21.Kd2 (21.Nb5 Kd7+=) 21...Nf3= 22.Bf3 ef3 23.Rf2 (23.Nb5 Ne4 24.Kd1 Kd8–/+) 23...Qg1 (23...Rc8 24.Kd1=) 24.Ke1 Ng4 25.Rf3 Nh2 26.Rf2 Nf1 27.Ne2 Nd2 28.Ng1 Nb3 29.Ra3 h5 30.Rb3+= h4 31.Ne2 g5= 32.Kf1 Kd7 33.e4 de4 34.Re3 Bc4 35.d5= Rh7 36.Re4 Bd5 37.Rd4 Ke6 38.Nc3 Bc6 39.b5 h3? 40.Kg1 Bg2= 41.Kh2 f5 42.Re2 Kf7 43.Nd5 Be4 44.Nf6!+/– Rh4? 45.Ne4+– fe4 46.Rde4 Re4 47.Re4 Rc8 48.Kh3 a6 49.Kg4 ab5 50.ab5 b6 51.Kf5 Rc5 52.Re5 Rc2 53.Ba3 (53...Rg2 54.Re7 Kg8 55.Kg6 Re2 56.Re2 g4 57.Re8#) 1–0. Franke – Pentzien,Volker, corr DDR, 1990.

4.e3 Nf6 5.Bb2 Bd6 6.c5 Bc7 7.d4 (7.Nf3 Nbd7=+) 7...ed4 (7...e4 8.b5=+) 8.Bd4 0–0 9.Bd3 Bg4 10.h3 Bh5 11.Nd2 Bg6 12.f4 (12.Ngf3!?=) 12...Bd3 13.Qd3 Nbd7 14.Ngf3= Re8 15.0–0 Ne4 16.Rad1 a5 17.a3 Qe7 18.Nb3 ab4–/+ 19.ab4 Ra4 20.b5 Ndc5–+ 21.Nc5 Nc5 22.Qc2 Rc4 23.Qb2 Na4 24.Qa1 cb5 25.Rde1 Bb6 26.Bg7–/+ Rf4 27.Bh6 Rf6 28.Bg5 Bd8 29.Bh4 Qe6= 30.Bf6 Bf6 31.Nd4 Qe5 32.Qd1 Bg5 33.Qg4 h5 34.Qf5 Qf5= 35.Nf5 h4 36.Rf3 b4 37.Rb1 Re4 38.Nd6 Nc3 39.Ra1 Re7 40.Ra8 Kh7=+ 41.Nf5 Rc7 42.Nd4 Ne4–/+ 43.Kh2 Bf6 44.Ne2? Rc2 45.Nf4–/+ Nd2 46.Rf2 Be5 47.Ra7 d4–/+ 48.Rb7 de3 49.Rf7 Kg8 (50.Rd7 ef2 51.Rd8 Kh7 52.Rh8 Kh8 53.g3 Bf4 54.gf4 f1Q 55.f5 Ne4#) 0–1. NN – REXChess, 1994.

4.e3 Nf6 5.Bb2 Bd6 6.cd5 Nd5 7.Bc4 Be6 8.e4 Nf4 9.Be6 Ne6 10.Nf3 Nd7 11.0–0 0–0 12.Na3 Qf6 13.Nc4 Bc7 14.Ne3 Rad8 15.Qc2 a6 16.Rad1 Qg6 17.d4 ed4 18.Nd4 Nd4 19.Bd4 Qh6 20.g3 Be5 21.Be5 Ne5 22.f4 Nd7 23.Nf5 Qh5 24.e5 Nb6 25.Ne7 Kh8 26.Rd6 Rd6 27.ed6 Nd5 28.Nd5 Qd5 (28...cd5 29.d7 g5 30.Qc8+–) 29.Rd1 Qe6 30.Qd2 Qd7 31.Re1 Re8 32.Re8 Qe8 33.Kf2 Kg8 34.d7 Qd8 35.Qd6 f6 36.g4 Kf7 37.g5 fg5 38.fg5 Kg8 39.h4 (39...Qb6 40.Kf3+–) 1–0. Simmelink,JTh – Malmstroem,Jan, corr Kuhlmann mem, 1999.

4.Nf3 dc4 5.Qc4 Be6 =+.

3.Nf3 Bb4?!

4.Ne5 d6 5.Nd3 =.

4.Ne5 Nf6 5.Qb3 =+.

2.c4 e6

3.a3 a6 4.Bb2 h6 5.e3 Qg5 (5...a5!?=) 6.Nf3+/– Qe7 7.d4 b5 8.c5 Qf6 (8...a5 9.ba5 Ra5 10.a4 Ra4 11.Ra4 ba4 12.Nc3+/–) 9.Bd3 d6 10.0–0 (10.Nc3 a5+/–) 10...dc5+= 11.bc5 Bc5 12.Qc2 (12.dc5?! Qb2 13.Nbd2 Nf6=) 12...Be7?? (better is 12...Bd6+/–) 13.d5!+– e5 (13...cd5 14.Bf6; 13...ed5 14.Bf6 Discovered attack) 14.Be5 (14.Ne5?! Qd6+–) 14...Qf3 (14...Bb7 15.Rc1+–) 15.gf3 Bf6 16.Bf6 Nf6 17.dc6 0–0 18.Nd2 Be6 (18...Bh3 19.Ne4 Nd5 20.Rfc1+–) 19.Ne4 (better is 19.a4!? b4 20.c7 Nbd7 21.Ba6 Nb6+–) 19...Nd5 20.Nd6 Nc7 (20...Ra7 21.Bh7 Kh8 22.Qc5 Nc6 23.Be4+–) 21.Bh7 (21.Rfd1 Bd5+–) 21...Kh8 22.Be4 Rd8 (22...a5 23.Rfb1+–) 23.Rfd1 Kg8 (23...Rf8 24.Qc5 Kg8+–) 24.Bh7 Kf8 25.Nb7 (25.Qc5 Nd7 26.cd7 Rd7 27.Nf5 Ke8 28.Rd7 Kd7 29.Qd6 Kc8 30.Ne7 Kb7 31.Qc6 Kb8 32.Qb6) 25...Rd1 (25...Rd5 26.Rd5 Nd5 27.c7+–) 26.Rd1 Ke7 27.Qc5 Kf6 28.f4 (28.Qd4 Kg5 29.Qe5 Kh4 30.Rd4 Bg4 31.Rg4 Kh3 32.Qg3) 28...g6 29.Qe5 (29.Qd4 Kf5 30.h3 Nc6 31.Nd6) 29...Ke7 30.Bg6 (30.Qd6 Kf6 31.Qd4 Kf5 32.h3 Nc6 33.Nd6) 30...fg6 31.Qc7 Kf6 (31...Nd7 32.cd7 Kf6 33.Qe5 Kf7 34.Nd6 Ke7 35.Qg7 Bf7 36.Qf7 Kd8 37.Rc1 b4 38.Qe8) 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

3.a3 b5 4.e4 bc4 5.Bc4 Qb6 6.d4 a5 7.ba5 Qa5 8.Bd2 Qb6 9.Nf3 d5 10.ed5 cd5 11.Be2 Nc6 12.Bc3 Nf6=+ 13.0–0 g6 14.a4= Bg7 15.Bb5 Bd7 16.Na3 0–0 17.Rb1 Ne4=+ 18.Ba1 Qa7 19.Rc1 Rfc8 (20.Ne5 Qb7=+; 19...Nb4 20.Bb2=+). alaamattar (2230) – rwgambit (2110), net–chess.com, 2005.

3.Qb3 a5 4.b5 Nf6 5.Bb2 a4 6.Qc2 a3 7.Bc1 d5 8.e3 Bb4 9.Nf3 0–0 10.Be2 Qa5 11.bc6 Nc6 12.0–0 Rd8 13.d4= dc4 14.Bc4 e5 15.de5 Ne5–/+ 16.Nd4 Bg4 17.f3 Rdc8 18.fg4 Rc4 19.Qe2 Ne4 20.Nb3 Qc7 21.Bd2 Bc5 22.Rf5 Nd2 23.N1d2 Ng4 24.g3 Be3 25.Kg2 Qc6 26.Rf3 Bd2 27.Nd2 Re8 (28.Qc4 Ne3 29.Kg1 Nc4–+ (< 29...Qc4 30.Nc4 Nc4 31.Rc3+/–)) 0–1. RageofKlugman – PeterRs, ChessWorld.net, 2006.

3.Qb3 d5 4.Nf3 =+.

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

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

3.c5 a5 4.d4 ab4 5.Bb2 b6 6.Nd2 bc5 7.dc5 Nf6 8.Nb3 Na6 9.Qd4 Qe7 10.Qh4 e5 11.Nf3 Nc5 12.Be5 Nce4 13.Bf6 Nf6 14.Qc4 c5 15.e3 d5 16.Qc2 c4 17.Nbd4 Bd7 18.Be2 Ba4 19.Qb2 Qe4 20.0–0 c3 21.Qc1 c2 22.Ne1 Bd6 23.Bd3 Qh4 24.Nef3 Bh2?? (better is 24...Qh5=) 25.Nh2+– 0–0 26.Nhf3 Qh5 27.Qb2 Ne4 28.Nc2 Bc2 29.Bc2 Nc3 (29...Ra6 30.Qe5 Qe5 31.Ne5 Nc3+–) 30.Rfe1 Rfc8 31.Qb4 Ra2 32.Ra2 Na2 33.Qb7 Rf8 34.Qb3 d4 35.Qa2 de3 36.Re3 Qh6 (36...Qb5 37.Ne5 Qb4 38.Bh7 Kh7 39.Rh3 Kg8 40.Ng6 Qe1 41.Kh2 Qe5 42.g3 Qg3 43.Kg3 Re8 44.Rh8) 37.Bf5 (better is 37.Ne5!? Qe6 38.Bb3 Qc8 39.Bf7 Kh8+–) 37...Qf4 38.Qc2 Qh6 39.Qe4 g6 40.Bh3 Rd8 41.Qc6 Qf8 42.Qf6 Rd1 43.Kh2 Rc1 (43...Qd6 44.Qd6 Rd6 45.g4+–) 44.Re7 (44.Rd3!? h5+–) 44...Rc2 (44...Rc6 45.Qe5 Rc2+–) 45.Bd7 Qh6 46.Kg3 Qf8 47.Be8 Qe7 48.Qe7 Kg7 49.Qf7 Kh6 50.Qf8 Kh5 51.Qf4 Rc3 52.Qg5# 1–0. Crux_043b – Mint_161, computer chess game, 2000.

3.e3 Bb4–/+ 4.Bb2 Bf8 5.Nf3 Nf6 6.Be2 Be7 7.0–0 0–0 8.Qc2 d5 9.Ng5 g6 10.Qc3 Nbd7 11.Nf3 Bd6 12.d3 Re8 13.Nbd2 e5 14.h3 e4 15.de4 de4 16.Nd4 c5 17.N4b3 Be5 18.Qc2 Bb2 19.Qb2 b6 20.Qc2 Bb7 21.Rfd1 Qc7 22.Nf1 Nf8 23.Ng3 Rad8 24.Nd2 Rd6 25.a3 Qb8 26.Rab1 h6 27.a4 a5 28.Rf1 N8h7 29.Rfe1 Ree6 30.Qb2 Ba8 31.Nb3 Nd7 32.Na5 Ne5 33.Qc2 Nd3–/+ 34.Bd3 ed3 35.Qd2 Qe8 36.Nb3 Qa4 37.Qc3 Qc6 38.f3 Ng5 39.Nd2 f5 40.h4 Nf7 41.Ra1 Qe8 42.Ngf1 Ne5 43.Ra7 Re7 44.Raa1 Nc6 45.Rab1 Nb4 46.Rb2 Qd8 47.Reb1 Ree6 48.Ra1 Rd7 49.Kf2? Qh4 50.Kg1 Qd8 51.Kf2 h5 52.Kg1 Kh7 53.Kf2 h4 54.Nh2?! g5 55.Rh1 Nc2 56.Nhf1 Kg6 57.Ra2 Rde7 58.g3 Rh7 59.g4 fg4 60.Rc2?? g3 61.Kg2 dc2 62.Qc2 Kh6 63.Ng3 Kg7 64.Nf5 Kg8 65.Ng3 Qc7 66.Nge4 Be4 67.Ne4 Re4! 68.Qe4 Qg3 69.Kf1 Rg7?? 70.Qe8= Kh7 71.Qe4 Kh6–/+ 72.Rg1 Qh3 73.Rg2? Qd7 74.Ke1?? Re7–+ 75.Rd2 Qd2!! 76.Kd2 Re4 77.fe4 h3 78.e5 Kg6 79.e6 Kf6 80.Kd3 h2 (80...h2 81.Kd2 Ke6–+) 0–1. Mauron,Regis – Mongey,Alain (1630), Montigny le Bretonneux op, 2007.

3.a3 a5

4.Bb2 Nf6 5.e4 Ne4 6.Qf3 d5 7.Nc3 (7.d3 Nf6 8.b5 cb5 9.cb5 Nbd7–/+) 7...Nc3 (7...ab4 8.Ne4 de4 9.Qe4 ba3 10.Nf3–+) 8.Bc3 (8.Qc3 dc4 9.Qc4 ab4 10.ab4 Ra1 11.Ba1 Na6–/+) 8...ab4 9.Bb2? (9.ab4 Ra1 10.Ba1 Na6–+ (10...Bb4?! 11.Qg3=+)) 9...Ra4?? (9...ba3 10.Ba3 dc4 11.Bb2 Ra1 12.Ba1–+) 10.Bd3? (10.Qd1 ba3 11.Qa4 ab2–/+) 10...Qa5 (10...dc4!? 11.Bc2 b3 12.Bb1–+) 11.Ne2? (11.Qg3 Nd7 12.cd5 ba3 13.de6–+) 11...ba3–+ 12.Bc3 Bb4?? (better is 12...Qd8–+) 13.0–0 (better is 13.Qg4!?=) 13...dc4 14.Bc2 Bc3 15.dc3 Nd7 16.Nf4 Ne5 17.Qe3 Ng4 18.Qf3 Qg5?? 19.Ba4+– 0–0 20.h3 e5 21.hg4 Bg4? 22.Qe4 ef4+/– 23.g3 f3?? 24.Rfe1 h5 25.Bc2 g6 26.Qc4 h4? 27.Bd1?? hg3–/+ 28.fg3 Qd2 29.Qf1 Qc3 30.Bf3? Bf3–+ 31.Kf2? Bd5 32.Rad1 Qg3 33.Kg3+– Kg7 (33...a2 34.Qf6 a1R 35.Ra1 Bf3 36.Rh1 Bh5 37.Rh5 gh5 38.Qg5 Kh7 39.Rh1 b6 40.Rh5) ½–½. Papa Lazarou II – coolerdude, ChessWorld.net, 2004.

4.b5 cb5 5.cb5 Nf6 6.Bb2 d5 7.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 a5 5.b5 c6 6.c4 cb5 7.cb5).

4.b5 cb5 5.cb5 Nf6 6.Bb2 Be7 7.e3 d6 8.Nf3 e5 9.d4 e4 10.Nfd2 d5 11.Nc3 0–0 12.Rc1 Bg4 13.Be2 Be2 14.Qe2 Ne8 (14...Bd6 15.0–0=) 15.0–0 f5 16.Nb3 (16.Qh5 g6 17.Qh6 Nf6+=) 16...Qd6 17.Nc5 b6 18.N3a4 Ra7 (18...bc5 19.dc5 Qc7 20.Nb6+=) 19.Rc2 (19.Nb3 Rc7=) 19...Bd8 (19...bc5 20.dc5 Qg6 21.Rb1=+) 20.Rfc1 (20.Nb3 Bc7 21.Qh5 Nf6=) 20...f4 (20...bc5 21.dc5 Qe6 22.Rb1=+) 21.ef4 (21.Nb3 f3 22.Qf1 fg2 23.Qg2 Rc7=+) 21...bc5–/+ 22.dc5 Qf4 23.Bd4 (23.Qe3 Qf5 24.Rb1 Bf6–/+) 23...Raf7 (23...Bf6 24.Be3 Qh4–/+) 24.b6 (better is 24.Qe3!? Qh4 25.Qg3 Qg3 26.hg3–/+ (26.fg3? Nc7–+)) 24...Nc6–+ 25.Be3 Qf5 26.Qb5 d4 27.Qc6 de3 28.f3 (28.Rf1 Bh4 (28...ef2?! 29.Rcf2 Qe5 30.Rf7 Rf7 31.Rf7 Kf7 32.Qb5–+) 29.g3 A) 29...ef2 30.Rcf2 Qe5 31.Rf7 (31.gh4 Rf2 32.Rf2 Qd4 33.Qe6 Kh8–+) 31...Rf7 A1) 32.gh4 Qd4 33.Kg2 Qd2 34.Kg3 Qd3 (34...Rf1?! 35.Qe8 Rf8 36.Qe4=+) 35.Kg4 Qe2 (35...Qf1?! 36.Qe8 Rf8 37.Qe6 Kh8 38.Qe4–/+) 36.Kg3 Rf3 (36...Qf1?! 37.Qe8 Rf8 38.Qe4=+) 37.Kg4 Qg2 38.Kh5 g6 39.Qg6 Qg6; A2) 32.Rf7 Kf7 33.gh4+/–; B) 29...Qf3–+) 28...ef3 29.Qf3 Qd7 30.c6 Qd4 31.Rc4 Qd2–/+ 32.Qf7?? Rf7–+ 33.h4 e2 34.c7 e1Q 35.Re1 Qe1 36.Kh2 Rf1 (37.Kh3 Rh1 38.Kg4 Nf6 39.Kf5 Rf1 40.Rf4 Qe4 41.Kg5 Qf4#) 0–1. juanpacio (1735) – metajedrez (2060), internet, 2006.

4.b5 d5 5.e3 =.

3.a3 Nf6

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

4.Bb2 Be7 5.Nf3 d5 =.

4.Bb2 Be7 5.g3 0–0 6.Bg2 a5 7.Nc3 (7.Qb3!?+=) 7...ab4–/+ 8.ab4 Ra1 9.Qa1 Bb4 10.Nh3 (10.Na4 Be7–/+) 10...d5–+ 11.cd5 ed5 12.0–0 Nbd7 13.d3 Qa5 14.Qa5 Ba5 15.Ra1 Bc7 16.e4 de4 17.Ne4 Ne4 18.de4 Ne5 19.Nf4 Rd8 20.Kf1 b5 21.Ra8 b4 22.Ke1 (better is 22.Bd4–+) 22...g5 23.Be5 Be5 24.Nd3 Bc3 (24...Rd3?! 25.Rc8 Kg7 26.Rc6–/+) 25.Ke2 (25.Kf1 b3 26.e5–+) 25...Bg4 26.f3 Ra8 27.fg4 Ra2 28.Kf3 b3 29.Bf1 (29.h3 b2 30.Nb2 Bb2–+) 29...c5! 30.Nc5 b2 31.Bd3 Bd4 32.Nb3 (32.e5 Bc5 33.Ke4–+) 32...b1Q! 33.Bb1 Rf2# 0–1. Dinu – Woelfelschneider,Peter, 2009.

4.d4 a5 5.b5 d5 =.

3.Bb2

3.Bb2 (--> 1.b4 e6 TESTI100 2.Bb2 c6 3.c4).

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

3.Bb2 Qb6 4.a3 a5 (--> 1.b4 c6 2.Bb2 Qb6 3.a3 a5 4.c4 e6).

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

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

3.Bb2 d5 4.e3 Nd7 5.Nf3 Ngf6 6.a3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Bd6 5.e3 Nbd7 6.c4 c6).

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

3.Bb2 f5 4.e3 Nf6 5.a3 d5 6.Nf3 Bd6 (--> 1.b4 f5 2.Bb2 Nf6 3.e3 e6 4.a3 d5 5.Nf3 Bd6 6.c4 c6).

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

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

3.Bb2 Nf6 4.a3 a5 5.b5 cb5 6.cb5 d5 7.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 a5 5.b5 c6 6.c4 cb5 7.cb5).

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

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

3.Bb2 Nf6 4.b5 a6 5.a4 ab5 6.cb5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 a6 4.c4 ab5 5.cb5 c5 6.a4).

3.Bb2 Nf6 4.b5 cb5 5.cb5 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 a6 4.c4 ab5 5.cb5 c5 6.a4 cb5 7.ab5 Ra1 8.Ba1).

3.b5 cb5

4.cb5= a6 5.Nc3 (5.ba6 Na6 6.e4 d5=) 5...ab5 6.Nb5 Nf6 7.e3 (7.Bb2 Nc6=) 7...Be7 8.Nf3 (8.Bb2 0–0=) 8...0–0 9.Be2 Nc6 10.0–0 b6 (10...e5 11.Bb2 d6 12.a3=) 11.Bb2 Ba6 12.a4 d5 13.Ne5 Ne5 14.Be5 Nd7 15.Bc7 Qc8 16.Bg3 Qb7 17.d4 Rfc8 18.Qd2 (18.Bd3 Nf6+=) 18...Nf6= 19.f3 Rc6 (19...Nh5 20.Bf2=) 20.Rfc1 Rac8 21.Rc6 Rc6 (21...Qc6? 22.Na7 Qb7 23.Nc8 Qc8 24.Rc1+–) 22.Rc1 Qc8 (22...Nh5 23.Rc6 Qc6 24.Be1=) 23.Rc6 Qc6 24.Be1 (24.Bd3 Nh5=) 24...Ne8 25.Qc3 Qc3 26.Bc3 Bd8 (26...f5 27.Bd3=) 27.Kf2 Bc8 (27...Bh4 28.g3 Be7 29.h3+=) 28.Bb4+/– g5 (28...Bd7 29.e4+/–) 29.Nd6 (29.Bd3 Bd7+/–) 29...Bd7+= 30.Ne8 Be8 31.Bb5 Bb5 32.ab5 Bc7 (32...f6 33.Bd6+=) 33.Be7 h6 34.Bf6 Kh7 (34...Kf8 35.e4+=) 35.e4+/– Kg6 36.e5 Kh7 (36...h5 37.Kg3+/–) 37.Kg3 (37.g4 Kg6+/–) 37...Kg6 38.f4 Kf5 39.fg5 hg5 40.Kf3 Kg6? (better is 40...Bb8+/–) 41.Kg4+– Kh6 (41...Bb8 42.h3+–) 42.Bg5 Kg6 43.h4 Kg7 (43...Kh7 44.Be7 Kg6 45.h5 Kh6 46.Bg5 Kg7 47.Bf6 Kh6 48.Kh4+–) 44.Kh5 (better is 44.Be7+–) 44...Bb8 (44...Kh7 45.Bf6 Kg8 46.Kh6+–) 45.Bd8 Ba7 46.g4 1–0. Kroekel,Bernd – Schuler,D, St Ingbert op, 1987.

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

4.cb5= d5 5.Nf3 =.

2.c4 Nf6

(--> 1.b4 Nf6 2.c4 c6).

3.Bb2

3.Bb2 (--> 1.b4 c6 2.Bb2 Nf6 3.c4).

3.Bb2 Qb6 4.a3 a5 5.e3 ab4 6.c5 Qc7 7.ab4 Ra1 8.Ba1 (--> 1.b4 c6 2.Bb2 Qb6 3.a3 a5 4.c4 ab4 5.c5 Qc7 6.ab4 Ra1 7.Ba1 Nf6 8.e3).

3.Bb2 e5 4.Be5 Bb4 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 c6).

3.Bb2 a5

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

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

3.Bb2 d5

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

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

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

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

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

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

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

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

4.e3 Bf5 5.Nf3 dc4 6.Bc4 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.c4 dc4 6.Bc4 c6).

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

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

4.e3 g6 5.Nf3 Bg7 6.d4 Nbd7 7.Nbd2 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 c6 6.d4 d5 7.Nbd2 Nbd7).

3.Bb2 e6

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

4.a3 a5 5.b5 cb5 6.cb5 d5 7.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 a5 5.b5 c6 6.c4 cb5 7.cb5).

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

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

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

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

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

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

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

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

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

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

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

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

3.Bb2 g6

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

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

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

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

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

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

3.e3 g6

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

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

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

3.Nf3 d5

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

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

2.d4 a5

3.ba5 d5 A) 4.Nf3 Qa5 (4...Nf6 5.e3 Bf5 6.Bd2 Ne4= 0.09; 4...Bf5 5.Bd2 Nf6 6.c4 e6= 0.19; 4...Bg4 5.Bd2 Bf3 6.ef3 e6= 0.09; 4...e6 5.Bd2 Nf6 6.c4 Ne4= 0.09) 5.Bd2 Qc7 6.e3 Nf6= 0.09; B) 4.e3 Qa5 (4...Nf6 5.Bd2 Ne4 6.Nf3 Bg4= 0.12; 4...Bf5 5.Bd2 Nf6 6.c4 e6= 0.12) 5.Bd2 Qc7 6.c4 Nf6= 0.09; C) 4.Bd2 Bg4 (4...Bf5 5.e3 Nf6 6.c4 e6= 0.12; 4...Nf6 5.e3 Ne4 6.Nf3 Bg4= 0.12; 4...e6 5.e3 Nf6 6.Nf3 Ne4= 0.12) 5.h3 Bf5 6.e3 Nf6= 0.09.

3.ba5 e6 A) 4.e4 d5 5.e5 c5 6.dc5 Qa5= –0.06; B) 4.Nf3 Nf6 (4...d5 5.Bd2 Nf6 6.e3 Ne4= 0.12) 5.Bd2 Ne4 6.e3 Nd2= 0.03; C) 4.e3 d5 (4...Nf6 5.Bd2 d5 6.Nf3 Ne4= 0.12; 4...Bb4 5.Bd2 Ba5 6.Nf3 d6= 0.22; 4...Qa5 5.Bd2 Qd8 6.Nf3 d5= 0.09; 4...d6 5.Nf3 Qa5 6.Bd2 Qh5= 0.25) 5.Bd2 Nf6 6.c4 Ne4= 0.09; D) 4.c4 Nf6 (4...d5 5.e3 dc4 6.Bd2 Bd6= 0.12; 4...Be7 5.e3 d5 6.Nf3 dc4+= 0.28; 4...Bb4 5.Bd2 Ba5 6.Nf3 Nf6= 0.19; 4...c5 5.Nf3 cd4 6.Nd4 Nc6= 0.19) 5.Nf3 Ne4 6.e3 Bb4= 0.03; E) 4.Bd2 Nf6 (4...d5 5.e3 Nf6 6.Nf3 Ne4= 0.12) 5.e3 d5 6.c4 Ne4= 0.09.

3.ba5 Nf6= A) 4.e3 d6 (4...Ne4 5.Bd3 d5 6.Nf3 Qa5= 0.12; 4...e6 5.Bd2 d5 6.c4 Ne4= 0.09; 4...d5 5.Bd2 Ne4 6.Nf3 Bg4= 0.12; 4...Qa5 5.Bd2 Qc7 6.Nf3 d6= –0.03) 5.Bd2 e5 6.c4 Be7= –0.06; B) 4.Nf3 Qa5 (4...Ne4 5.e3 Qa5 6.Bd2 Nd2= 0.03; 4...e6 5.Bd2 Ne4 6.e3 Nd2= 0.03; 4...d5 5.Bd2 Ne4 6.e3 Bg4= 0.12; 4...d6 5.Bd2 Ne4 6.e3 Bf5= 0.19) 5.Bd2 Qc7 6.e3 d6= –0.03; C) 4.c4 e5 5.de5 Qa5 6.Bd2 Qe5= –0.25; B4) 4.Bd2 d5 (4...Ne4 5.e3 d5 6.Nf3 Bg4= 0.12; 4...e6 5.e3 d5 6.Nf3 Ne4= 0.12) 5.Nf3 Ne4 6.e3 Bg4= 0.12.

3.b5 (--> 1.b4 a5 2.b5 c6 3.d4).

3.ba5 Qa5

4.Bd2 Qa7 5.e3 Nf6 6.Nf3 d6 =.

4.Bd2 Qb6 5.e3 Nf6 6.Bd3 d5 =.

4.Bd2 Qc7 5.c4 Nf6 6.Nf3 e6 7.e3 d5 8.c5 Nbd7 9.Bc3 Ne4 10.Be2 b6 11.cb6 Nb6 12.0–0 Na4 13.Qc2 Bd6 14.Bd3 f5 15.Rc1 0–0 16.Be1 c5 17.Bb5 Qa7 18.Ba4 Qa4 19.Qa4 Ra4 20.dc5 Bc5 21.Nc3 Nc3 22.Bc3 Ba3 23.Rd1 Rc4 24.Rd3 Ra4 25.Be5 h6 26.Rc3 Ba6 27.Rc7 Rf7 28.Rc6 Re7 29.Rb1 Bc4 30.Nd4 Ba2 31.Rbb6 Bc4 32.Nf5 ef5 33.Rb8 Kh7 34.Bc3 d4 35.Bd4 Bd5 36.Rcc8 Rd4 37.Rb1 Rb7 38.Ra1 Rdb4 39.f3 Rb1 40.Rb1 Rb1 41.Kf2 Rb2 42.Kg1 Re2 43.Rc3 Bb4 44.Rd3 Rd2 45.Rd2 Bd2 46.Kf2 Bc4 47.e4 fe4 48.fe4 Bd3 49.e5 Kg6 50.g4 Kf7 51.e6 Ke6 52.h4 Ke5 53.Kf3 Kd4 54.Kf2 Ke4 55.g5 hg5 56.hg5 Kf5 57.g6 Kg6 58.Kg2 Kf5 59.Kf3 g5 60.Kg3 g4 61.Kg2 Kf4 62.Kf2 Be3 0–1. Confente – Hansen, corr 3GMM–15 1994–97.

4.Bd2 Qd8 5.Nf3 d5 6.e3 Nf6 =.

4.Bd2 Qh5 5.Nf3 d5 6.e3 Bg4 =.

3.Bd2 ab4

4.Bb4 Na6 5.Bd2 d5 6.e3 Bf5 =.

4.Bb4 d5 5.e3 Na6 6.Bd2 Bf5 =.

4.Bb4 Nf6 5.c4 Na6 6.Bd2 d6 =.

4.Bb4 g6 5.e3 Bg7 6.Nf3 Nf6 7.c4 d6 8.Nbd2 0–0 9.c5 dc5 10.Bc5 b6 11.Bb4 Nd5 12.Qb3 c5 13.Ba3 Nc6 14.Bb2 Na5 15.Qc2 Nb4 16.Qc1 Bf5 17.e4 Bg4 18.a3 Nbc6 19.d5 Nd4 20.Nd4 cd4 21.f3 Bd7 22.Bd3 e6 23.de6 Be6 24.0–0 f5 25.f4 fe4 26.Be4 Rc8 27.Qd1 Qd7 28.Qe2 d3 29.Bd3 Bb2 30.Rae1 Rce8 31.Ne4 Ba3 32.Ng5 Bc5 33.Kh1 Bd5 34.Qd2 Re1 35.Re1 Qd6 36.Bb5 Bb4 37.Qd1 Be1 38.Qe1 Qf4 39.Nh3 Qe4 40.Qe4 Be4 41.Kg1 Bd5 42.Bd3 Bc4 43.Bb1 Bf1 0–1. Jaszczuk – Caruso, 1994.

3.Bd2 Qb6+=

4.ba5 Qd4 5.c3 (5.Nc3 d5+= 6.Nf3 Qg4= –0.22) 5...Qc5 (5...Qg4 6.Nf3 d5–/+ –0.72) 6.Nf3 (6.e3 Nf6–/+ –0.78) 6...Qa5 (6...Nf6 7.e3–/+; 6...d5–/+ –0.88) 7.c4 (7.e4 d6+=) 7...Qa4 (7...Qf5 8.Nc3–/+) 8.Qa4+= Ra4 9.e4 (9.Nc3 Ra3+=) 9...d6 10.Nc3 Ra3 11.Nb1 (11.Nd4 e5 12.Nc2 Ra8–/+) 11...Ra8–/+ 12.Bd3 (12.Nc3 Nf6–/+) 12...Nd7 13.Nc3 Ngf6 14.0–0 (14.Be3 Ng4 15.Bd2 Nc5–+) 14...Nc5 15.Bc2 Be6 16.e5 de5 (16...Nfd7 17.Rfe1–/+) 17.Ne5 g6 (17...Ng4 18.Ng4 Bg4 19.h3–/+) 18.Be3 Nfd7 19.Nd7 Nd7 20.Bb3 (20.Bd4 Rg8 21.Bb3 Bg7 22.Bg7 Rg7–/+) 20...Bg7 21.Rac1 0–0 (21...h6 22.Rfd1–/+) 22.Ne4 Rfd8 23.f4 h6 24.h3 Bb2 25.Rc2 Ba3 26.Rc3 f5 27.Nf2–/+ Bc5 28.Bc5 Nc5 29.Bc2? Ra2–+ 30.g4 Rd2 31.gf5 gf5 32.Rg3 Kf7 33.Nd1 Rac2 34.Ne3 Ne4 35.Nc2 Ng3 36.Rf2 Rf2 37.Kf2 Ne4 (37...Ne4 38.Ke3 Bc4–+) 0–1. Aannevik,Bjarne – Baeckstroem,Mikael (2295), corr ICCF WSTT/3/06/1, 2006.

4.c3 ab4 5.Qb3 d5+= (5...e6 6.e3 Nf6+=) 6.Nf3 Nf6 +=.

4.c3 d5 5.Qa4 Bf5 6.Bf4 Nf6 +=.

4.c3 Nf6 5.e3 d5 6.a3 ab4 +=.

4.Nf3 ab4 5.c4 =+.

4.Nf3 ab4 5.e4 d5 6.ed5 cd5 +=.

2.e4 a5

3.b5 (--> 1.b4 a5 2.b5 c6 3.e4).

3.b5 cb5 (--> 1.b4 a5 2.b5 c6 3.e4 cb5).

3.c3 a4 4.Na3 e5 5.Nf3 h6 6.Bd3 g5 7.0–0 g4 8.Ne5 d6 9.Ng4 h5 10.Ne3 h4 11.Re1 h3 12.Nec4 Nd7 13.Bf1 Ne5 14.Qe2 b5 15.Na5 Bh6 16.d4 hg2 17.Bg2 Nf6 18.de5 de5 19.Nc6 Qd6 20.Ne5 Qe5 21.f4 Qc3 22.Bb2 Qb4 23.e5 Nd7 24.e6 Qc5 25.Kh1 Nb6 26.ef7 Kf7 27.Bh8 Bf4 28.Qf3 Qb4 29.Qf4 Qf4 30.Rad1 Qh6 31.Ba1 Bh3 32.Rd2 Bg2 33.Rg2 Re8 34.Rf1 Ke7 35.Nb5 Qc6 36.Nd4 Qd5 37.Nf5 Kd7 38.Bf6 Re2 39.Nh4 Ra2 40.Nf3 Ra3 41.Rg7 Ke6 42.Bb2 Rf3 43.Rg6 Kf7 44.Rfg1 Rf6 45.R6g2 Rf2 46.Bc3 Rg2 47.Rg2 Qd1 48.Rg1 Qf3 49.Rg2 Qc3 50.Rg3 Qc6 51.Kg1 Nd5 52.h3 Nf4 53.Kh2 Ne2 54.Rg2 Nf4 55.Rf2 Qd6 56.h4 Kg6 57.Kh1 a3 58.Rh2 Qd5 59.Rg2 Qg2 0–1. Miker – willi_weizenkeim, playchess.de, 2001.

3.d4 ab4 4.Bc4 e6 5.Nf3 d5 6.Bd3 de4–+ 7.Be4 Nf6 8.Nbd2 Nbd7 9.Ne5 Ne5–+ 10.de5 Nd5 11.Bb2–/+ Be7 12.0–0 b6 13.Re1 Bb7 14.Qg4 g6 15.Rad1? Qc7 16.f4 Ra2 17.Nc4 0–0 18.f5?? ef5–+ 19.Bf5 Bc8 20.e6 Be6 21.Ne5?? Bf5–+ 22.Qf3 Rb2 23.Rd2 b3! 24.Ree2 Bc5 25.Kf1 Rb1 26.Re1 Re1 27.Ke1 Qe5 28.Re2 Qa1 29.Kd2 bc2 30.Re1 Bb4 31.Ke2 Qe1 0–1. Papa Lazarou II – Bury born and bred, ChessWorld.net, 2004.

3.ba5 Qa5

4.Bb2 e5 5.Nf3 d6 6.Be2 Nf6 7.Bc3 Qc7 8.d3 Be6 9.a4 Nbd7 10.Ng5 Nc5 11.Bb4 d5 12.0–0 Be7 13.Bc5 Bc5 14.Ne6 fe6 15.Bg4 Qf7 16.Nd2 0–0 17.Nb3 Bb4 18.Bh3 Kh8 19.f4 ef4 20.Rf4 Qc7 21.Qf3 Bd6 22.Nd4 Qb6 0–1. Trkn – Michael I., itsyourturn.com, 2000.

4.Nc3 Nf6 5.Nf3 d5 6.e5 Ne4 7.Ne2 Bg4 8.Nfd4 Be2 9.Qe2 e6 10.Nb3 Qb6 11.f3 Nc5 12.Bb2 Nb3 13.cb3 Bc5 14.f4 Na6 15.Bc3 d4 16.Bb2 Nb4 17.Qe4 Ra2 18.Ra2 Na2 19.Bc4 Nb4 20.f5 ef5 21.Qf5 0–0 22.0–0 Nd5 23.e6 fe6?? 24.Qe6+– Kh8 25.Rf8 Bf8 26.Qf7 Qc5 27.Bd5 cd5 28.d3 b5 29.Kf1 Qe7 30.Qd5 Qf6 31.Ke2 Qe7 32.Qe4 Qe4 33.de4+/– Bd6 34.h3 Be5 35.Kd3 Kg8 36.g4 Kf7 37.Bd4 Bf4 38.Kc3 Bd6 39.h4 g6 40.e5 Be7 41.g5 Ke6= 42.Kd3 Kf5 43.Bc3 Bc5 44.Be1 Ke5 45.b4 Be7 46.Bg3 Kf5 47.Be1 Ke5 48.Bg3 Kf5 49.Be1 Ke5 50.Bg3 Kf5 51.Be1 Ke5 52.Bg3 Kf5 53.Be1 Ke5 54.Bg3 Kf5 55.Be1 Ke5 56.Bg3 Kf5 57.Be1= Ke5 58.Bg3 Kf5 59.Be1 Ke5 60.Bg3= ½–½. Hossa (2110) – shefa (2130), ICS rated standard match, 1998.

2.e4 Qb6

3.a3 a5 4.ba5 Ra5 5.d4 d6 (5...d5!?=) 6.Nf3+= g6 7.Nbd2 Ra8 8.Be2 Bg7 9.Rb1 Qc7 10.0–0 Nd7 11.Bd3 Ngf6 12.Re1 0–0 13.c3 e5 14.a4 Re8 15.Qb3 h6 16.Nc4 ed4 17.Ba3 (17.cd4 d5 18.Ncd2=) 17...c5 (Better is 17...Nc5!? 18.Bc5 dc5=) 18.cd4–/+ Ne4? 19.Be4+– Nf6 20.Bg6! Be6 21.Bc2 cd4 22.Re6! Re6 23.Nd4 Ree8 24.Nd6 Red8 25.Ne6! fe6 26.Qe6 Kh8 27.Nf7 Qf7 28.Qf7 Rd7 29.Qg6 Ra5 30.f4 1–0. market (2270) – Wreck_of_GM (2320), GameColony.com, 2002.

3.a3 Qd4 4.Nc3 e5 5.Nf3 Qd6 6.Bc4 Ne7? 7.Ng5+– Qc7? 8.Bf7 Kd8 9.0–0 h6 10.Qh5 d6 11.Be6 g6 12.Nf7 Ke8 13.Qh3 Rh7 14.Nd6! Qd6 15.Bc8 Qc7 16.Bg4 h5 17.Be2 Nd7 18.d3 Qd6 19.Be3 Rf7 20.Rad1 Bg7 21.Bg5 a5 22.b5 Qa3 23.bc6 bc6 24.Nb1 Qd6 25.Qg3 Kf8 26.Be7 Qe7 27.Qg6+– h4 28.Qc6 Qe8 29.Bh5 Rc8 30.Bf7 Rc6 31.Be8 Ke8 32.c3 Ke7 33.c4 Nc5 34.Nc3 Nb3 35.Nd5 Ke6 36.f4 Nd4 37.f5 Kf7 38.Rb1 a4 39.Rb7 Kf8 40.f6 Bh6 41.f7 Rc8 42.Ne7 (42...Kg7 43.Nc8+–) 1–0. narendras – thotares, internet, 2007.

3.a3 e5!?

3.a3 Nf6 4.e5 Qd4=+ 5.Bb2?? Qb2–+ 6.Nc3 Nd5 7.Nge2 Nb4 8.Nd4? Nd5 9.Nd5 cd5 10.c3 Qb6 (11.Rb1 Qg6–+) 0–1. Wobick – Hoffmann, corr SOK–89–51, 1989.

3.c3 e5 4.Na3 Nf6 5.d3 d6 6.Be3 Qc7 7.c4 (7.Qe2 d5+=) 7...d5–/+ 8.c5 Be7 9.ed5 Nd5 10.Qd2 Be6 11.g3 (11.Nf3 Nd7–/+) 11...Nd7 12.Bh3 Bh3 13.Nh3 a5 14.Nc2 ab4 15.Nb4 Ne3 16.fe3 Bc5 17.0–0 0–0 18.Nf2 Qd6 19.Rfb1 f5 20.Nc2 Ra7 21.Ne1? (21.d4 ed4 22.ed4 Bb6–+) 21...Nf6 (21...f4 22.Ne4 fe3 23.Qe2–+) 22.Rb3 (22.Ng2 Nd5 23.Rb3 f4 24.gf4 ef4–+) 22...Rfa8 23.Ng2 Nd5 24.Qc1 (24.Qe2 b5–+) 24...b5 (24...Ra2?! 25.Ra2 Ra2 26.Rb7–+) 25.Qd2 Ra3 26.Rb2? (26.Ra3 Ra3 27.Qe2–+) 26...Bb4 27.Qc1 Bc3 28.Rc2 (28.e4 Ne7 29.Ne3 Qd4–+) 28...Ba1 29.Qa1 Nb4 30.Rd2 Ra2 31.Ra2 Ra2 32.Qb1 c5 33.Nh1 g6 34.Nf2 Qd5 35.Ne1 f4! 36.Ng4 Kg7 37.e4 Qd4 38.Kh1 Qc3 0–1. Polasinski,Zbigniew – Olszowski,Andrzej (1895), Gora Sw Anny op 1st Poland, 2008. (=1.b4 c6 2.e4 Qb6)

3.Nc3 Qb4 4.Nf3 =.

3.Nc3 e5 4.Rb1 Nf6= 5.Bc4 Be7 6.Nf3= 0–0 7.0–0 d5 8.ed5 e4 9.Na4?? Qc7–+ 10.Nd4 b5 11.Bb5 cb5 12.Nb5 Qd7 13.c4 Nd5 14.cd5 Qb5–+ 15.Nc3 Qc4 16.Re1 Bf5 17.Qe2 Rc8 18.Qc4 Rc4 19.f3 Rb4 20.d6? Bd6–+ 21.fe4 Rb1 22.ef5 Rc1 23.Rc1 Nd7 24.Nb5 Bc5 25.Kf1 a6 26.Nc7 Ra7 27.Nd5 f6 28.Rc4 Bd6 29.h3 Ne5 30.Rc8 Kf7 31.d4 Nd3 32.Rc6 Bg3 33.Rc3 Nf4 34.Nf4 Bf4 35.Kf2 Rc7 36.Ra3 Rc6 37.Kf3 Bd2 38.Ke4 Rd6 39.Rb3 Ke7 40.Rg3 Kf8 41.Rb3 Ba5 42.Rb8 Bd8 43.Rb3 Kf7 44.Rb7–/+ Be7 45.a4 Ke8 46.Rb8 Bd8–+ 47.Rb7 Rd7 48.Rb3 Ke7 49.g4 Kd6 50.h4 Kc6 51.Rb8 Bb6 52.d5? Kc7 53.Rg8 h6 54.Re8 Bc5 55.Re6 Re7 56.d6? Bd6 57.Kd5 Re6 58.Ke6 Bg3 (59.h5 Kb6–+) 0–1. Bray,Jose – Costa,Paulo C, POR–sf Portugal, 1993.

3.Bc4 Qb4?! 4.Qe2 =+.

3.Bc4 Qd4 4.Qf3 Qc4 5.Bb2 Qc2 6.Qc3 Qe4 7.Ne2 Qg2 8.Rg1 Qh2 9.Rg7 Nf6 10.Rg1 d5 11.Na3 Rg8 12.Rg8 Ng8 13.b5 Qh1 14.Ng1 Qg1 15.Ke2 Bg4 16.Ke3 Qg2 17.bc6 Qe4# 0–1. cole baker – pierre, ChessHere.com, 2005.

3.Nf3 Qb4 4.Ba3? Qe4–/+ 5.Be2 d5 6.h3 Qg6 7.g4 Nf6 8.Bd3 Ne4 9.Qe2 Qf6 10.c3 h5 11.gh5 Rh5 12.h4?? Bg4 13.Be4 de4 14.Qe4 Bf3 15.Qb4 Qe6 16.Kf1 Qe2 17.Kg1 Qe1 18.Kh2 Qf2 19.Kh3 Qg2 0–1. crca108 – mrkt, myChess.de, 2005.

3.c3 a5

4.Qa4 e5 5.Nf3= d6 6.b5 Bd7 7.Na3+= cb5 (7...Nf6 8.Nc4 (8.Rb1 Be7 9.Nc4 Qd8 10.Ne3 0–0 11.Ba3 g6 12.h3 Kg7) 8...Qd8 9.Ne3+= Be7 10.Rb1 0–0 11.Ba3 g6 12.h3 Kg7) 8.Bb5+/– (worse is 8.Nb5 Na6= 9.d4 Nf6 10.de5 Nc5 11.Qd4 Nfe4 12.Rb1 Qc6) 8...Bb5? (better is 8...Nf6!?+/– 9.Qc4 Qc5 10.Qc5 dc5 11.d3 Bd6 12.Nc4 Ke7) 9.Nb5+– (9.Qb5?! Nd7+/–) 9...Nc6? (better is 9...Nd7 10.d4 Rc8 11.de5 Qc6 12.ed6 Nc5+–) 10.Rb1 Qd8 11.0–0 (11.d4 f5 12.ef5 Nf6+–) 11...Be7 (11...Nf6 12.Rd1 d5 13.d4 Ne4 14.c4+–) 12.d4 Kf8 (12...ed4 13.cd4 Kf8 14.e5+–) 13.Rd1 f6 (13...ed4 14.Nfd4 Nf6 15.Nf5+–) 14.d5 (14.Ba3!? ed4 15.Nfd4 Nd4 16.Nd4 Qc8+–) 14...Nb8 15.Be3 (15.Ba3 Nh6+–) 15...Nd7 16.Na3 (16.c4 b6+–) 16...Qc7 17.Nb5 Qd8 18.c4 Nh6? 19.Bh6 gh6 20.Qa3 Nc5 21.Nh4 Rg8 22.Nf5 Ne4 23.Nh6?? Rg6+/– 24.Qe3 Nc5 25.Nf5 Qd7 26.Nfd6?? Bd6–+ 27.Nd6 Qd6 28.Rb5 Rc8 29.Ra5 f5 30.Qf3 Kg7 31.Qf5–/+ Rf8 32.Qc2 Qb6 33.Rb5+= Qa7 34.Qc3 Ne4 35.Qe5 Kh6 36.Qe4?? Qf2 37.Kh1 Qf1!! 38.Rf1 Rf1 0–1. Tiedemann,Joern (1940) – Langschmidt,Dirk (2100), RSX20E – NoEngine–Grossturnier–1, 2010.

4.Qa4 Nf6 5.e5 Ne4 6.d4 d5 (6...h6!?+=) 7.f3+/– Nc3 8.Nc3 Qd4 9.Nge2 Qe5 10.b5 e6 11.Bf4 Qf6 12.Rc1 d4? (12...e5 13.bc6 bc6 14.Nd5 Qd8 15.Rc6 Bd7 16.Nc7 Qc7 17.Rc7 Ba4 18.Be5 Nc6=) 13.Ne4 Bb4 14.Kf2 Qe7 15.bc6 Nc6 16.Nd4 Bd7 17.Nc6 Bc6?? 18.Rc6! Qd7 19.Re6! fe6 20.Bb5 1–0. MT – guest922, ICC, 2004.

4.Qa4 g6 5.Nf3 Bg7 6.d4 Nf6 7.Bd3 0–0 8.0–0 d6 9.Bg5 Bg4 10.Nbd2 Nbd7 11.b5 Rfc8 12.Rab1 c5 13.h3 Bf3 14.Nf3 cd4 15.cd4 e5 16.de5 Nc5 17.Qd4 de5 18.Qd5?? Nd5–+ 19.ed5 Nd3 20.Be3 Qd6 21.Ne1 e4 22.Nd3 ed3 23.Rb3 Bc3 24.b6 Qd5 25.Rc1 d2 26.Rd1 a4 27.Rbb1 Qa2 28.g3 Qc2 29.Kg2 a3 30.Bd2 Bd2 31.Rf1 a2 32.Ra1 Ra3 33.Ra2 Ra2 (34.h4 Qc6 35.Kh3 Qb6–+) 0–1. Taulien,Hans_Juergen – Gross,Karl, remoteschach.de, 2002.

4.ba5 Qa5 5.Bc4 Nf6 6.d3 d5 7.ed5 cd5 8.Bb3 Nc6 9.Bd2 Bf5 10.d4 e6 11.Ne2 Qa6 12.0–0 Bd3 13.Re1 Bd6 14.Nc1 Bc4 15.Bg5 Ne4 16.Bh4 0–0 17.Bc2 Qb6 18.Be4 Qb2 19.Bh7? Kh7–+ 20.Qh5 Kg8 21.Bf6 Ne7 22.Qg5 Ng6 0–1. Odachowski,M (1800) – Szafraniec,T (2475), corr, 2001.

4.ba5 Ra5 5.d4 e5 (5...d5 6.Nd2+=) 6.Nd2 Qa7 (6...d5 7.de5 Rc5 8.Qc2+/–) 7.Nc4+/– Ra2 8.Ra2 Qa2 9.de5 Bc5 10.Nd6 Bd6 11.Qd6 Qb1 12.Kd2 (worse is 12.Qb8 Qc1 13.Ke2 Qc2 14.Ke3 Qc3 15.Bd3 Qc1 16.Kf3 Ne7–/+) 12...Qa2 13.Ke3 Qa7 14.Kf3 c5 15.Kg3 Ne7 16.Nf3 b6 17.Bg5 Nbc6 18.Bb5 Qa5 (18...h6 19.Be7 Ne7 20.Rd1+/–) 19.c4+– h6 20.Be7 Ne7 21.Rd1 Qa7 22.e6 fe6 23.Ne5 Nc6 (23...g5 24.Qe6 Rh7 25.Nd7 Qc7 26.Kf3 Rg7+–) 24.Bc6 g5 25.Qe6 (25.Qe6 Kd8 26.Nf7 Kc7 27.Qd6#) 1–0. Sodomski,Andrzej (1930) – Stasiak,Wiktor, 55. Championship Poland Quarterfinal, 2008.

3.c3 d5

4.ed5 cd5 5.Nf3 Nf6 6.d4 e6 7.Bd3 Bd6 8.0–0 0–0 9.Bg5 Ne4 10.Be4 de4 11.Nfd2 Qc7 12.Qh5 f6 13.Be3 f5 14.Nb3 Nd7 15.Bg5 Nf6 16.Bf6 Rf6 17.Qe8 Rf8 18.Qh5 e5 19.d5 Qc4 20.Rd1 b6 21.Nc1 a5 22.ba5 Ra5 23.Nd2 Qc3 24.Ncb3 g6 25.Qh6 Rd5 26.Rab1 Ba6 27.Rdc1 Qd3 28.Rb2 Rf7 29.Rd1 Bf8 30.Qg5 Qe2 31.Rdb1 Ba3 32.Rc2 f4 33.Rf1 e3 34.fe3 fe3 35.Rf7 ed2 36.Nd2 Kf7 37.Rc7 Ke8 38.h4 Bd6 39.Rc6 Rd2 40.Rc1 e4 (41.Qd8 Kd8 42.Rc8 Bc8 43.g4 Qd1#) 0–1. Bestia03g – AnMon509, computer chess game, 2000.

4.e5 (--> 2.e4 d5 3.e5 Qb6 4.c3).

2.e4 d5

3.a4 de4–/+ 4.Ra3 (4.Bb2 Nf6–/+) 4...Nf6 5.Bb2 Bf5 (5...e5 6.Rg3–/+) 6.Re3 (6.Rg3 e6–/+) 6...e6 7.b5 Bc5 8.Rg3 (8.Rb3 Qb6 9.Qe2 Nbd7–+) 8...0–0 9.Bc4 cb5 10.ab5 Nbd7 11.Na3 (11.Qe2 Bd6 12.Rb3 Nb6–+) 11...e3! 12.fe3 (12.de3 Qa5 Double attack (12...Qa5 Decoy); 12.fe3 Qc7 Combination) 12...Bd6 13.Rg5 Qe7 14.h4?? (better is 14.Qc1–+) 14...Ba3 15.Bc3 (15.Qa1 Bd6 16.Bd5 Rfb8–+ (16...Nd5?! 17.Rg7 Kh8 18.Rf7 Kg8 19.Re7 Ne7 20.Qa2–/+)) 15...h6 16.Rf5 ef5 17.Rh3 (17.Bd4 f4–+) 17...f4 (17...Rfc8 18.Be2–+) 18.Qf3 fe3 19.d3 (19.Qe3 Qd6 20.Qd3–+) 19...Bb4 20.Ne2 (20.Ke2 Bc3 21.Qb7 Qb4–+) 20...Bc3 21.Nc3 Qb4 22.Kd1 Qc3 23.Qe3 Rfe8 24.Qd2 Qa1 25.Qc1 Re1! 26.Kd2 Qc1 27.Kc3 Qa3 28.Bb3 Rc8 (28...Rc8 29.Kd2 Qc1) 0–1. Maidana,Edgardo R – Schulle,Jozsef, IECC, 2001. (=1.e4 c6 2.b4 d5)

3.Bb2 (--> 1.b4 c6 2.Bb2 d5 3.e4).

3.c3 de4–/+ 4.f3 e5 5.fe4 (better is 5.d3!? ef3 6.Nf3–/+) 5...Qh4–+ 6.g3?? (6.Ke2 Qe4 7.Kf2 Bb4 8.d4 Qh4 9.g3 Qf6 10.Nf3–/+) 6...Qe4 7.Qe2 Qh1 8.Qe5 Be7 9.Qg7 (9.Qe3–+) 9...Bf6 (9...Qg1 10.Qh8 Bh3 11.Qg8 Bf8 12.d4 Qf1 13.Kd2–+) 10.Bg2 Qg1 11.Bf1 Bh3 (better is 11...Bg7 12.d4–+) 12.Qh8 Qf1 0–1. MC Q – marekt, ChessWorld.net, 2004.

3.Nc3 de4+= 4.Ne4 Bf5 (better is 4...Qd4 5.Nc3 Qb4+=) 5.Bd3?? (5.Ng3 Bg6=) 5...e6?? (5...Be4 6.Be4 Qd4–+) 6.Bb2= Be4 (6...Bb4? 7.Bg7 Be4 A) worse is 8.Bh8 Bg2 (worse is 8...Bd3 9.cd3 Qd3 10.Nf3+=) 9.Qg4 Bh1=; B) 8.Be4+–) 7.Be4 Nf6 8.Bf6 Qf6 9.d4? Bb4–+ 10.Kf1 Bc3 11.Rb1 Bd4 12.Nf3 Bc5 13.Rb7–/+ 0–0 14.c4 Rd8 15.Qc2 g6 16.g3 Qa1 17.Kg2= Qf6 18.Rhb1 Rc8 19.Qd2 Qd8 20.Qd8+= Rd8 21.Ne5 Rc8? 22.Nf7+– Rf8 23.Nh6 Kh8 24.f4 Rc8 25.Rf7 Rf8 26.Rfb7 Rc8 27.Nf7 Kg8 28.Ne5 Bd4 29.Nd7 Nd7 30.Rd7 Bc5 31.Kh3 a5? 32.Kg4?? Ra7 33.Bc6!+– Rd7 34.Bd7 Rd8 35.Be6 Kf8 36.h4 Ke7 37.Rb5 Bb4 38.a3! Ba3 39.Ra5 Bb2 40.Bd5 Bf6 41.Ra7 Rd7 42.Rd7 Kd7 43.c5 h5 44.Kh3 Bd4 45.Bf7 Bc5 46.Bg6 1–0. Fortunato,Gino – Donders,Bart, IECC, 2000. (=1.e4 c6 2.b4 d5)

3.d3 de4 4.Qd2 Bf5 5.de4 Be4 6.Qd8 Kd8 7.c3 Nf6 8.Nd2 Bg6 9.Ngf3 e6 10.Bc4 Nd5 11.Bb2 Be7 12.0–0 (12.Rd1!?–/+) 12...Bf6–+ 13.Rad1 Nd7 (13...Nc3 14.Bc3 Bc3 15.Ne4 Ke7 16.Nc3+/–; 13...Bc3?! 14.Bd5 Bb2 15.Be6–+) 14.Nd4 N7b6 15.Bb3 Bd4 16.cd4 Nb4 17.a3 N4d5 18.a4 Nb4 19.a5 N6d5 20.Nc4 f6 21.Ne3 b5 22.Rd2 Kd7 23.Rfd1 Be4 24.Nf1 Nf4 25.Ne3 Bd5 26.Nd5 cd5 27.g3 Nh3 28.Kg2 Ng5 29.Re2 Rhc8 30.f3 Nf7 31.Kf2 Nd6 32.h4 (32.Ba3 Nc6 33.a6 b4–+) 32...a6 33.Ba3 Rc3 34.Bb4 Rb3 35.Bd6 Kd6 36.h5 (36.Rde1 Re8 37.Rc2 Rb4–+) 36...Ra3 37.Rc2 Ra4 38.f4 Rb8 39.g4 g5 40.hg6 hg6 41.f5 Rh8 42.Rc3 gf5 43.gf5 e5 (43...Ra5 44.Rdc1 Ra2 45.Kg3 Rg8 46.Kf3+=) 44.Rdc1 Rc4 (44...Ra5 45.Rc6 Ke7 46.Rc7 Ke8 47.Rc8 Kd7 48.Rh8 Ra2 49.Ke1 ed4 50.Rcc8+–; 44...ed4 45.Rc6 Ke5 46.Ra6 Ra2 47.Kg3 Rg8 48.Kh3–+) 45.de5 fe5 46.Rc4 bc4 47.Rb1 d4 48.f6 c3 49.Rf1 e4 0–1. Hofsommer,Michael – Nagel,Ralf, DESC F0022 email, 2004. (=1.e4 c6 2.b4 d5)

3.Qe2 de4 4.Qe4 Nf6 5.Qd3 =+.

3.Qe2 e6 4.e5 (4.ed5 Bb4 5.de6 Be6=+) 4...Bb4=+ 5.a3 (5.c3 Bf8–/+) 5...Ba5 (5...Qa5 6.c3 Bf8 7.Nf3=+) 6.c3 (6.Qg4 g6=+) 6...Nd7 (6...Ne7 7.Nf3–/+) 7.g3 (7.d4 c5 8.Qg4 g6=+) 7...Bc7 (7...Ne7 8.Nf3–/+) 8.d4 Bb6 (8...Ne7 9.Qh5–/+) 9.Qg4=+ g6 10.Be3 (10.Nf3 c5=+) 10...Ba5 (10...Ne7 11.Ne2–/+) 11.Bg2 (11.h4 Qb6 12.Qe2 Qb3=+) 11...Qb6–/+ 12.Nf3?? (better is 12.Qe2–/+) 12...Qb2–+ 13.0–0 Qa1 14.Bd2 Qb2 15.Ng5 (15.Qf4 h6–+) 15...Nh6 (better is 15...h6 16.Ne6 Ne5–+) 16.Rd1 (16.Qf3–+) 16...Ng4 17.Bh3 h5 (18.Bg2 Nb6–+) 0–1. danelson – eweram, net–chess.com, 2005.

3.e5 h5 4.d4 g6 (4...Bf5 5.a3=) 5.Be2 (5.Nf3 h4+=) 5...Bg7 (5...h4 6.h3+=) 6.Nc3 (6.Nf3 h4+=) 6...Bf5 7.Nf3 Bg4 (7...f6 8.0–0+=) 8.h3 Bf3 9.Bf3 e6 10.0–0 (10.Ne2 Nd7+/–) 10...Nh6 11.Ne2 Nf5 12.a4 Nd7 (12...Nh4 13.Nf4+=) 13.c3 (13.a5 Qe7+=) 13...Bf8 (13...Nh4 14.Nf4+=) 14.Ng3 Nh6 (14...a5 15.Nf5 gf5 16.Rb1+/–) 15.Qb3 (15.a5 Nf5+/–) 15...Qc7 (15...f6 16.Qc2 Rg8 17.ef6 Qf6 18.a5+/–) 16.Bg5 (16.a5 h4 17.Ne2 Nf5+/–) 16...Be7 (16...Nf5!?+/–) 17.Be7+– Ke7 18.c4 White intends b5 18...dc4 (18...f6 19.Qc2 h4 20.cd5 ed5 21.Ne2 fe5 22.Bd5+– (< 22.Qg6 Rag8 23.Qc2 e4–/+)) 19.Qc4 Nb6 20.Qc5 Kd7 (20...Kd8 21.a5 Nd5 22.b5+–) 21.b5 Nd5 22.Rac1 (22.Rfc1 Ke8+–) 22...Rhc8 (22...Qb6 23.bc6 bc6 24.Qd6 Ke8 25.a5+–) 23.Ne4 Nf5 24.bc6 (better is 24.a5+–) 24...Qc6?? (24...bc6 25.Rb1 Rab8+–) 25.Nf6 Nf6 26.Bc6 (26...Rc6 27.Qb5+– (27.ef6?! Rc5 28.dc5 Kc6+–); 26.ef6?! Qc5 27.dc5 Rab8+=) 1–0. Caissa – 300SPARTANS, Live Game Caissa's Web, 2005.

3.e5 h6 4.Nf3 Bg4 5.h3 Bf3 6.Qf3 e6 7.d4 (7.a3 Qb6= 8.Qc3 Ne7) 7...Bb4+= 8.c3 Be7 9.Nd2 Bg5 10.Rb1 Qc7 (10...b5 11.Qg4 g6 12.h4 Bd2 13.Bd2=) 11.Qg4 Bd2 12.Bd2 f5 (better is 12...g6=) 13.Qg6+– Qf7 14.Qf7 Kf7 15.Rb7 Ne7 16.g4 g6 (16...Rd8 17.g5 h5 18.g6 Ke8 19.Be2+/–) 17.Be2 (better is 17.c4+–) 17...Na6?? (better is 17...c5 18.gf5 gf5+/–) 18.Ba6 Rab8 19.Ke2 Rb7 20.Bb7 Rb8 21.Rb1 Nc8 22.gf5 gf5 23.Bh6 Ne7 24.Bg5 Ke8 25.h4 Kd7 26.h5 Ng8 27.Bc6! (27.Bc6 Kc7 28.Rb8 Kb8 29.Bd7+–) 1–0. marre – tigreton, internet, 2010. (=1.e4 c6 2.b4 d5 3.e5)

3.f3 de4 4.fe4 (4.Nc3 ef3 5.Nf3 Nf6–/+) 4...Nf6 (4...e5 5.Nf3 Bb4 6.c3–/+) 5.e5 (5.Nc3 Qd4=+) 5...Nd5 (better is 5...Qd4!? 6.Nc3 Ng4–/+) 6.a3=+ Bg4?? (better is 6...b5=+) 7.Qg4+– Qb6 (7...a5 8.b5+–) 8.Qc8 (8.c4 f5 9.ef6 Nf6 10.Qc8 Qd8 11.Qb7 Nbd7 12.Qc6 a5+–) 8...Qd8 Black gets deadly initiative 9.Qb7 Nd7 (9...Nb6 10.Nf3+–) 10.Qc6 e6 11.d3 (better is 11.Ba6 Rb8 12.Nf3 Rb6+–) 11...Rc8 12.Qb7 (better is 12.Qa4 Qc7 13.Nf3 Qc2 14.Qc2 Rc2+–) 12...Rc2 13.Nd2 (13.Ne2 Ne5 14.Qb5 Rc6+–) 13...Qh4 14.g3 Qg5? (14...Qd4 15.Rb1 Ne5 16.Qb5 Kd8+–) 15.Ngf3 (15.d4 Qe3 16.Ne2 Nc3 17.Qa8 Ke7+–) 15...Qe3 16.Be2 (better is 16.Kd1 Rc7 17.Qa8 Ke7 18.Bb2+–) 16...Nc3 Threatening mate: Qxe2 17.Ng1 Qe5 18.Ngf3?? (better is 18.Qc8 Ke7 19.Ne4 Re2 20.Ne2 Ne4 21.Rb1+–) 18…Qe2# 0–1. epersici – rotterdamchess (1740), net–chess.com, 2006.

3.f3 e5 4.b5 Bc5 5.d4 (5.Ba3 Ba3 6.Na3 de4–/+) 5...Bd4 6.Nc3?? (better is 6.c3 Bg1 7.Rg1 Qh4 8.g3 Qh2 9.Rg2–/+) 6...Bc3–+ 7.Bd2 Ba1 8.Qa1 Nd7 9.Nh3 Ngf6 10.Bd3 cb5 11.Bb5 0–0 12.Ng5 (12.Nf2 Qb6 13.a4 Rd8–+) 12...h6 13.Nh3 de4 14.fe4 (14.Qc3 Nb6 15.Nf2 Nbd5 16.Qe5 e3 17.Be3 Qa5 18.Bd2 Qb5–+) 14...Nc5 15.Qe5 Bh3 16.gh3 Nfe4 17.Rg1 (17.Qf4–+) 17...Qd2 18.Kf1 Qf2 0–1. Doobi – Double Wood, ChessWorld.net, 2005.

3.d3 e5

4.c3 de4 5.de4 Qd1 6.Kd1 Nf6 +=.

4.Nf3 de4 5.de4 Bb4 6.c3 Qd1 7.Kd1 Bd6 8.Ng5 f6 9.Nf3 Nd7 10.Nbd2 Nc5 11.Ba3 (better is 11.Bc4!?–+) 11...Ne4! 12.Ne4 Ba3 13.Bc4 b5 14.Bb3 Ne7 15.Kc2 a5 16.Kd3 (16.Kd2 a4 17.Bc2 Bg4–+) 16...f5 17.Neg5 e4 18.Kc2 ef3 19.gf3 (19.Rhd1 g6 20.Bf7 Kf8 21.Rd8 Kg7 22.Rh8 Kh8 23.gf3 Kg7–+) 19...a4 20.Be6 (20.Bf7 Kd7–+) 20...h6 21.Bf7 (21.Bc8 hg5 22.Be6–+) 21...Kf8 22.Rad1 Bb7 23.Rd7 hg5 24.Rb7 Kf7 25.Re1 (25.h3 Bc5–+) 25...Rh2 26.Ree7 Be7 27.Kd3 Ke6 28.Ke3 Bc5 29.Kd3 Rd8 30.Ke2 (30.Rd7 Rd7 31.Ke2 Bf2 32.f4 Bg3 33.Ke3 Bf4 34.Kf3 Rd3) 30...Rf2 31.Ke1 Rh8 32.Re7 Ke7 33.Kd1 Rh1 0–1. Guendling,Harald – Markus,Roland, DESC E0024 DESC email, 1998. (=1.e4 c6 2.b4 d5)

4.Nf3 de4 5.de4 Bb4 6.Nbd2 Nf6 7.Bd3 Nbd7 8.0–0 0–0 9.Qe2 Qc7 10.Rb1 Bd6 11.Nc4 Bc5 12.Bb2 Re8 13.Rbd1 b5 14.Ne3 Nb6 15.c4 a6 16.Bc1 b4 17.Qc2 a5 18.Nh4 Be6 19.Nef5 a4 20.Bg5 Nbd7 21.Be2 Reb8 22.Rb1 b3! 23.ab3 ab3 24.Qd3 Ra2 25.Bf6 Nf6 (25...gf6?! 26.Bd1=) 26.h3 (26.Bd1 b2 27.Bb3 Ra3 28.Rb2 g6–+) 26...Rb4 27.Rfd1 g6 (27...Bc4 28.Qd8 Ne8 29.Qc7 Re2 30.Rd8 Bf8 31.Re8 Re1 32.Re1 h6 33.Rf8 Kh7 34.Qd8 b2 35.Rh8) 28.Ne3 Qd7 29.Nf3 Qd3 30.Bd3 (30.Rd3?? Re2 31.Kf1 Ra2 32.Ne5 Ne4–+) 30...Nd7 31.Bf1 f6 32.Rd2 Be3 33.fe3 Rd2 34.Nd2 b2 35.Kf2 Nb6 36.Bd3 Na4 37.Kf3 Nc3 38.Rf1 c5 39.g4 h5 40.gh5 gh5 (40...Bh3?! 41.Rh1 Bd7 42.hg6–+) 41.Kg3 Kf7 42.Kh4 Rb8 43.Bc2 Ra8 44.Rh1 Ra1 45.Rh2 Nd1 0–1. Hofsommer,Michael – Rohde,Matse, DESC F0022 email, 2004. (=1.e4 c6 2.b4 d5)

3.ed5 cd5

4.a4 e5 5.Bb5 Nc6 6.c3 Bd6 7.Bc6 bc6 8.Nf3 e4 9.Nd4 Ne7 10.Qh5 0–0 11.Qh4 Re8 12.d3 ed3 13.Nf3?? (better is 13.0–0–+) 13...Ng6 14.Kd2 Nh4 15.Kd3 Bf5 16.Kd2 Qe7 17.Re1 (17.Ne5 Qe5 18.Bb2 Qe2 19.Kc1 Qc2) 17...Nf3 18.gf3 Qe1 0–1. Dixon,Grant – Kravchenko,Daniil, OP–2011–0–01386, 2011. (=1.e4 c6 2.b4 d5 3.ed5 cd5)

4.Bb2 Qb6 5.a3 d4 6.Nf3 Nc6 7.Bc4 Nf6 8.d3 e6 9.0–0 Bd6 10.Nbd2 a6 11.Re1 0–0 12.Nb3 e5 13.Nbd2 Qc7 14.h3 b5 15.Bb3 a5 16.ba5 Na5 17.Rc1 Nb3 18.cb3 Qb8 19.b4 Bf5 20.Nb3 Re8 21.Nc5 h6 22.Re2 Bc5 23.Rc5 Nd7 24.Rc1 Be6 25.Nd2 Bd5 26.Ne4 Qb6 27.Qe1 Qg6 28.f3 Rac8 29.Kh1 Rc1 30.Qc1 Bc6 31.Rd2 f5 32.Nc5 Qg3 33.Nd7 Bd7 34.Re2 Rc8 35.Rc2 Rc2 36.Qc2 Qe1 37.Kh2 f4 38.Qc7? Bh3!–+ 39.gh3 Qg3 40.Kh1 Qh3 41.Kg1 Qg3 42.Kf1 Qf3 43.Ke1 Qe3 44.Kd1 Qd3 45.Kc1 f3 46.Qd8 Kh7 47.Qh4 Qe3 48.Kb1 f2 (49.Qf2 Qf2–+) 0–1. SteVeYBoY (1650) – Klaus Behrmann (2420), ChessWorld.net, 2003.

4.Bb2 Nc6 5.b5 Qb6 6.Nf3 =.

4.Bb2 d4 5.c4 (better is 5.Nf3!?+/–) 5...e5= 6.Qh5 Qc7 7.Nf3 Nd7 (worse is 7...Bb4 8.Qe5 Qe5 9.Ne5+=) 8.Ng5 g6 9.Qf3 f6 (9...Ngf6 10.c5 Bh6 11.Ne4 Ne4 12.Qe4+=) 10.Ne6= Qb6 11.Nf8 Nf8 12.a3 Be6 13.d3 Nd7 14.Nd2 Nh6 15.h3 0–0 16.g4 Nf7 17.Ne4 Ng5 18.Qe2 Ne4 19.de4 a5 20.c5 Qc6 21.b5 Qc5–/+ 22.Rc1 Qd6 23.f3 Rfc8 24.Rc8 Rc8 25.Qd1 b6 26.Rh2 Nc5 27.Rc2 Bb3?? 28.Bc4?? Bc4–+ 29.Rc4 Rc7 30.Rc2 Ne6 31.h4 Kg7 32.Kd2 Nf4 33.Rc7 Qc7 34.Qc2 Qc2 35.Kc2 h5 36.gh5 gh5 37.Bc1 Ng2 38.Kd3 Nh4 39.f4 Ng2 40.fe5 fe5 41.Ke2 h4 42.Kf2 Nf4 43.Bd2 Ne6 44.Kf3 Kg6 45.Kg4 Nc5 46.Kh4 Ne4 (46...Ne4 47.Be1 Nc3–+) 0–1. Rheindt,Stefan (2015) – Maier,Ralf (2005), RSS4D easy–32, 2007. (=1.e4 c6 2.b4 d5 3.ed5 cd5)

4.Bb2 e6 5.a3 Nf6 6.Nf3 Bd6 7.c4 dc4 8.Bc4 0–0 9.0–0 Bd7 10.d4 b5 11.Bb3 Bc6 12.Re1 Qc7 13.Ne5 Bb7 14.Nc3= a6 15.Nf7 Rf7 16.Be6=+ Kh8 17.Bf7+= Qf7 18.Rc1 Nbd7 19.h3 Bf4 20.Rc2 Nd5 21.Qf3 1–0. dragonpower (2295) – supertimchan (2000), net–chess.com, 2003.

4.Bb2 e6 5.a3 Nf6 6.Nf3 Be7 7.d4 (7.Nc3 a5=) 7...0–0 8.Nbd2 Nc6 (8...Bd7 9.Bd3=) 9.Bd3 Bd6 (9...Bd7 10.0–0=) 10.0–0+= b6 11.Ne5 Bb7 12.f4 Ne7 13.Qe2 Rc8 14.Rf2 Bb8 15.Raf1 Nf5 16.Rf3 Nd6 17.Rh3 Nde4 (17...h6!?=) 18.c4+= Re8 19.c5 h6 (19...Nd2 20.Qd2 Ne4 21.Qd1+=) 20.Bb5 Rf8 21.c6 Ba8 22.Ba6 (22.Ndf3 Bd6+/–) 22...Rc7 (better is 22...Rc6!? 23.Nc6 Bc6+=) 23.b5+/– Re7 24.Rc1 (24.a4 Nd2 25.Qd2 Bd6+/–) 24...Bd6 25.Nf1 Kh7 26.Ne3 Ne8 27.Qh5 N4f6 (27...N8f6!? 28.Qh4 Kg8+/–) 28.Qh4 Qc7 (28...Kg8 29.f5+–) 29.g4 (better is 29.f5 Qd8+–) 29...Rh8? (better is 29...Ne4 30.g5 f6+–) 30.g5 Ne4 31.N3g4 (better is 31.gh6 g6 32.N3g4+–) 31...Kg8 32.gh6 (better is 32.Kg2!?+–) 32...Rh7+/– 33.Rc2 N4f6?? (better is 33...f5 34.Rg2 fg4 35.Qg4 N8f6+/–) 34.Rg2 (34.Nf6 Nf6 35.Rg2 Ne8+–) 34...Ng4 (34...Ne4 35.Bc1+–) 35.Qg4 Be5 (35...Qd8 36.a4+–) 36.fe5 f5 (36...g6 37.a4 Qd8+–) 37.Qg6 Qd8 (37...Rh8 38.h7 Kf8+–) 38.Qh7! 1–0. Meszaros,Andras (2250) – Nominerdene,Davaademberel (1980), Kecskemet HUN, Closed IM July, 2014. (=1.e4 c6 2.b4 d5 3.ed5 cd5)

4.Bb2 e6 5.Nf3 Nf6 6.b5 Bd6 7.Bd3 Nbd7 8.0–0 e5 9.Be2 Qc7 10.Kh1 e4 11.Nd4 Nc5 (worse is 11...Bh2 12.g3 Bg3 13.fg3 Qg3 14.Nf5 Qh3 15.Kg1=) 12.a4 0–0 13.a5 Bh2 14.g3 Qd7 15.Kh2 Qh3 16.Kg1 Ng4 17.Bg4 Bg4 18.f3 Qg3 19.Kh1 0–1. Reussner,Hans Dieter – Roewekamp,Kai, DESC D0474 email, 2007. (=1.b4 c6 2.e4 d5 3.ed5 cd5)

4.Bb2 Bf5 5.Nf3 e6 6.a3 Nc6 7.Bb5 =.

4.Bb2 Bf5 5.Nf3 e6 6.a3 Nf6 7.d3 Be7 8.Nbd2 b5 9.Nd4= a5 10.c3 ab4 11.ab4 Ra1 12.Qa1 0–0 13.Be2 Qd7 14.Nf5 ef5 15.0–0 Nc6 16.d4 White gets the initiative 16...Rb8 17.Qa6 Qb7 18.Ra1 Nd7 19.Qb7 Rb7 20.Ra8 Ndb8 21.Bf3 Rd7 22.Nb3 g5 23.Na5 Kg7 24.Be2 Ra7 ½–½. Blumenberg,Walter – Funk,Oliver, Porz op, 1990.

4.Bb2 Bf5 5.Nf3 e6 6.Bb5 Nc6 7.Nd4 Nge7 8.0–0 Bg6 9.Ba4 Qb6 10.a3 0–0–0 11.Nc6 Nc6 12.Qe2 d4 13.d3 Bd6 14.Nd2 Qc7 15.h3 e5 16.Rfc1+= Kb8 17.c3 dc3 18.Bc3 Qe7 19.Bc6+/– bc6 20.Bb2 Rc8 21.Nb3 f6 22.Na5 Exerts pressure on the isolated pawn 22...Be8 23.Qf3 Qd7 24.d4 ed4 25.Bd4 Bh2 26.Kh2 Qd4 27.Kg1 Rg8 28.Rd1 Qe5 29.Rac1 Qc7 30.Rc5 Bd7 31.b5! Qa5 32.Rd7 Rc7 33.Qb3 (33...Rd7 34.bc6 (34.Qg8?! Qd8 35.Qd8 Rd8+/–) 34...Qb6 35.Rb5 Rd1 36.Kh2 Qb5 37.Qb5 Kc7 38.Qb7 Kd6 39.Qd7 Kc5 40.Qd1+–) 1–0. Kucharkowski,Jens – St_Jean,Benoit, corr or01–009 E–mail, 2001.

4.Bb2 Bf5 5.Nf3 e6 6.Bb5 Nd7 7.c4 dc4=+ 8.Ne5 Ngf6 9.Bc4 Ne5 10.Be5=+ Be7 11.Qa4 Kf8 12.d4 Nd5–/+ 13.a3 Nb6 14.Qb3 Nc4 15.Qc4 Rc8 16.Qb3 Bf6 17.0–0–/+ Be5 18.de5 g6 19.Nc3 Kg7 20.Rfd1 Qc7= (21.Nb5 Qe5–/+) 0–1. dragonpower (2360) – jjones (2175), net–chess.com, 2003.

4.Bb2 Nf6 5.a3 =.

4.Bb2 Nf6 5.b5 e6 6.Nf3 Bd6 7.Be2 0–0 8.d4 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.0–0 Nb6 13.Nbd2 Bd7 14.Qb1 Nh5 15.c4 (better is 15.g3!?+=) 15...Nf4–/+ 16.Bd3 Nd3 17.Qd3 dc4 (17...dc4 18.Qb1 Bf4–+) 0–1. Grant,Peter J – Galvin,John H, BPCF–USA corr, 1987. (=1.e4 c6 2.b4 d5 3.ed5 cd5)

4.Bb2 Nf6 5.Nf3 e6 6.a3 Bd6 7.c4 dc4 8.Bc4 0–0 9.Nc3 Nbd7 10.Qe2 a6 11.Rc1 b5 12.Ne4 Bf4 13.Bd3 Bb7 14.0–0 Rc8 15.Rc8 Qc8 16.Nf6 Nf6 17.Bf6 gf6 18.Be4 Rd8 19.d4 Be4 20.Qe4 Qc7 21.Rd1 f5 22.Qd3 Qc4 23.g3 Bh6 24.Qc4 bc4=+ 25.Ne5 Rc8 26.f4 c3 27.Rc1 c2 28.Kf2 Bf8 29.Ke2 Rc3 30.Nd3 Ra3 31.Rc2+= Kg7 32.Kd2 Be7 33.Rc6 Bf6 34.Rd6 h5 35.h3 Kf8 36.Ke3+= Ra1 ½–½. Kucharkowski,Jens – Schmickt,Bernhard, Orang–Utan Invitational, 2002.

4.Bb5 Nc6 5.c4 dc4–/+ 6.Bc4 Qd4 7.Qb3 Qa1 8.Bf7 Kd8 9.Bg8 Nd4 10.Qd5 Bd7 11.Nf3 e6 (12.Be6 Ne6=; 11...Qb1 12.Qc4 Rc8 13.Qd4 Rc1 14.Ke2 Rh1–+) 0–1. Heinicke – Labahn,Dieter, corr SOK–88–28, 1989.

4.Bb5 Bd7 5.Qe2 a6 6.Bd7 Nd7 7.Nc3 Ngf6 8.Nf3 e6 9.Ba3 b5 10.0–0 Bd6 11.Rae1 0–0 12.Nd4 Rc8 13.Ne6 Bh2 14.Kh2 fe6 15.Qe6 Kh8 16.Qd6 Ng4 17.Kg1 Qh4 18.f3 Rc6 19.Qf8 Nf8 20.fg4 1–0. jsiggy2001 – youam50, playchess.de, 2002.

4.Nc3 e6 5.Rb1 d4 6.Nce2 Nc6 7.b5 Ne5 8.Bb2 Bc5 9.f4 Nc4 10.Ba1 Qb6 11.Nf3 Na3 12.Bd4 Nb1 13.Qb1 Nf6 14.Bf6 gf6 15.d4 Be7 16.c4 a6 17.Nc1 ab5 18.cb5 0–0 19.Bd3 Qa5 20.Kf2 f5 21.Kg1 Bd6 22.g3 b6 23.Qb3 Bb7 24.Kf2 Rfc8 25.Bc4? Bf3 26.Kf3 Qd2 27.Rd1 Qh2 28.Be6 Rc2 29.Bf5 Rf2 30.Kg4 Bf4! 31.Bh7 Qh7 32.gf4 Qg6 (33.Kh3 Qg2 34.Kh4 Rf4 35.Kh5 Qg6#) 0–1. Bestia02c – AnMon503, computer chess game, 2000.

4.d4 Nf6 5.Bb5 Nc6 6.Bc6 bc6 7.c3 Bg4 8.Nf3 e6 9.h3 Bf3 10.Qf3 Be7 11.0–0 0–0 12.Nd2 a5 13.a3 ab4–/+ 14.cb4 Bd6 15.Nb3= Ne4 16.Na5 Qc7 17.Bb2? Nd2–+ 18.Qc3 Nf1 19.Kf1 Rac8 20.Rc1 e5?? 21.Nc6 ed4 22.Qd4+/– Bf4?? 23.Qg7 1–0. waloon (1680) – pkennedy (1660), net–chess.com, 2004.

4.d4 Nf6 5.Nf3 Bf5 6.Bb5 Nbd7 7.0–0 Qb6 8.Nc3 e6 9.a3 Rc8 10.Bd2 Bd6 11.Bd7 Nd7 12.Re1 Nf6 13.Re3 0–0 14.Na4 Qc6 15.Nc5 b6 16.Ne5 Be5 17.de5 Ng4 18.Rg3 bc5 19.Rg4 Bg4 20.Qg4 Qd7 21.Bh6 f5 22.ef6 Rf6 23.Bg5 Rg6 24.Qf4 cb4 25.ab4 h6 26.Bh4 Rc2 27.Qb8 Rc8 28.Qf4 Qc6 29.Qd2 Rg4 30.Bg3 Rc4 31.Re1 Qb6 32.Rb1 Qb4! 33.Qb4 Rb4 34.Ra1 Rbc4 35.h4 Rc1 36.Rc1 Rc1 37.Kh2 d4 38.Bf4 Re1 39.Kg3 e5 40.Bd2 Re2 41.Ba5 Kf7 42.f4 e4 43.f5 d3 44.Kf4 Rg2 45.Ke4 0–1. Hossa (2275) – WchessX (2790), ICS unrated blitz match, 1998.

4.Ne2 Nf6 5.g3 e6 6.d4 (Better is 6.a3!?=+) 6...Bb4–+ 7.c3 Be7 8.Qa4 Nc6 9.Nf4 0–0 10.Bb5 Qc7 11.Bc6 bc6 12.h3 c5 13.0–0 Ne4 14.f3 Ng3 15.Re1 Nf5 16.Kh2 Bd7 17.Qa6 Bd6 18.dc5 Bf4 19.Kg2 Bc1 20.Rc1 Qg3 21.Kf1 Qf3 22.Ke1 Qg3 23.Ke2 Qe3 24.Kf1 Qc1 25.Ke2 Qe3 26.Kf1 Rab8 27.Qa7 Ng3 28.Kg2 Rb2 (29.Nd2 Rd2) 0–1. bad ass biker – Klaus Behrmann (2080), ChessWorld.net, 2003.

4.Nf3 a5 5.ba5 Ra5 6.d4 Nf6 7.Bd2 Ra8 8.Bb5 Bd7 9.Bd7 Nbd7 10.Nc3 e6 11.0–0 Bb4 12.a4 0–0 13.Nb5 Bd2 14.Nd2 Nb6 15.a5 Qd7 16.Qb1 Rfc8 17.f3 Nc4 18.Nc4 Rc4 19.Qb2 Qd8 20.Rfc1 Rc6 21.Ra2 Ra5 22.Ra5 Qa5 23.Ra1 Qd8 24.Ra7 b6 25.c3 Ne8 26.Qa3 h6 27.Qe7 Qe7 28.Re7 Nf6 29.h4 g5 30.hg5 hg5 31.Kf2 g4 32.Rb7 gf3 33.gf3 Kg7 34.Ke3 Ne8 35.Rd7 Kg6 36.Kd3 Nf6 37.Rb7 Nh7 38.Na7 Rc4 39.Rb6 Ng5 40.Rb4 Rc7 41.Nb5 Rc6 42.Ke3 f6 43.Ra4 Nh3 44.Ra3 e5 45.Na7 Rc4 46.Nb5 Nf4 47.Ra6 Kg5 48.Kd2 Rc8 49.Nd6 Rc7 50.Ra1 Kh4 51.Rh1 Kg3 52.de5 fe5 53.Re1 Ra7 54.Re5 Kf3 55.Nf5 Ra2 56.Kd1 Ra4 57.Nd4 Kg4 58.Kc2 Ra2 59.Kb3 Rb2 60.Ka4 Rb8 61.Nc2 Kf3 62.Nb4 Rc8 63.Kb3 Rb8 64.Kc2 Rd8 65.Re7 Rd6 66.Nd3 Ne2 67.Re8 Nc3 68.Kc3 d4 69.Kc4 Ra6 70.Kd4 ½–½. COMP – COMP, 1999.

4.Nf3 Qb6 5.a3 Nf6 6.Bb2 a5 7.Be2 ab4 8.Bd4 Qe6 9.0–0 Nc6 10.ab4 Ra1 11.Ba1 Nb4 12.Na3 Nc6 13.Nb5= Qf5 14.Nc7 Kd8=+ 15.Nb5 Nd7 16.Nfd4 Nd4 17.Bd4 e5 18.Bb2 d4 19.Qa1 Qe4 20.Re1 Bc5 21.Ba3 Ba3 22.Qa3 Rf8 23.Nd6+= Qc6 24.Nc8 Qc8= 25.Qb3 Qc6 26.Bc4 Nc5 27.Qa3 b6 28.h3 f6 29.Rb1 Ke7 30.Qg3 g6 31.Qh4 h5 32.Re1 Ne6 33.Bb3 g5 34.Qg3 (34...Nf4 35.h4–/+; 34.Qh5? Qg2!? 35.Kg2 Nf4 36.Kf3 Nh5–+). Baer,Werner – Zmolil,Josef, TT–12 ETC, 2004.

4.Nf3 Nc6 5.b5 Nb4? (Better is 5...Na5=) 6.a3+– Qa5 (6...Nc2 7.Qc2 e5 8.Bb2+– (< 8.Ne5 Qe7 9.d4 f6+/–)) 7.c3 e6 8.cb4 Bb4 9.Bb2 (9.ab4?! Qa1 10.Qc2 Qf6+/–) 9...Bf8 10.Bc3 Qd8 11.Bd3 Nf6 12.0–0 Bd6 13.Re1 0–0 14.Qc2 Qc7 15.Qa4 a6?! 16.Bf6 gf6 17.Qh4 f5 18.Ng5 h5 19.ba6 ba6 20.Qh5 Kg7 21.Qh7 Kf6 22.Qh6 Ke7 23.Nh7 Rd8 24.Qh4 Kd7 25.Nf6 Kc6 26.Rc1 Bc5 27.Nc3 Kb7 28.Na4 Kb8 29.Rab1 Bb7 30.Nc5 d4 31.Ba6 Ra7 32.Ncd7! Ka8 33.Rc7 Ba6 34.Nd5! Rd7 35.Qh8 Rd8 36.Qd8 1–0. b4_player (2240) – ajny14 (1800), GameColony.com, 2003.

4.Nf3 e6 5.a3 a5 6.b5 Nf6 7.d4 Bd6 8.c4 b6 9.Be2 Nbd7 10.Nbd2 0–0 11.0–0 Bb7 12.Bb2 Ne4 13.Ne4 de4 14.Ne5 Ne5 15.de5 Bc5 16.Qd8 Rad8 17.Bc1 f6 18.ef6 gf6 (worse is 18...Rf6 19.Bg5+=) 19.Bh6 Rfe8 20.a4 e5 21.Rfd1 Rd4 22.g3 Bc8 23.Be3 Be6 24.Bd4 ed4 25.Bf1 d3 26.Bg2 Bc4 27.Re1 f5 28.Bf1 Kf7 29.Rab1 Rd8 0–1. fereidoonezzati – pierre (2100), internet, 2012.

4.Nf3 e6 5.a3 Nf6 6.d4 Bd6 7.Bd3 0–0 8.0–0 Nc6 9.Nc3 e5 10.de5 Ne5 11.Bg5 Nf3 12.Qf3 Be5 13.Bf6 Qf6 14.Qf6 Bf6 15.Nd5 Ba1 16.Ra1 Be6 17.Nc7 Rad8 18.Re1 Bc8 19.Kf1 Rd7 20.Ne8 Rd4 21.Nc7 Bd7 22.Re5 Rc8 23.Nb5 Bb5 24.Rb5 Rc7 25.Ra5 b6 26.Re5 Kf8 27.Ke2 Rc3 28.Ke3 Rh4 29.h3 Ra3 30.b5 Rc4 31.Kd2 Rc7 32.Rd5 Ke7 33.f4 g6 34.g3 Rac3 35.Ke3 R7c4 36.Re5 Kd6 37.Re8 Rc8 38.Re4 f5 39.Rd4 Ke6 40.Ke2 h5 41.Ra4 R3c7 42.Rd4 h4 43.gh4 Rh7 44.Bc4 Ke7 45.Kd2 Rh4 46.Bf1 g5 47.Ke3 gf4 48.Rf4 Rf4 49.Kf4 Rc2 50.Bd3 Rf2 51.Ke5 Rf3 52.Bc4 f4 53.Bd5 Rh3 54.Kf4 Rh5 55.Bc6 Rc5 56.Bb7 Rb5 57.Ba6 Ra5 58.Bf1 Kf6 59.Ke3 Ke5 60.Kd3 Rc5 61.Be2 a5 62.Bh5 b5 63.Be8 a4 64.Kd2 a3 65.Bf7 Rc4 66.Bc4 bc4 67.Kc3 Kd5 68.Kc2 Kd4 69.Kc1 Kd3 70.Kb1 c3 0–1. COMP – COMP, 2000.

4.Nf3 Nf6

5.a3 e6 =.

5.a3 Bg4 6.Bb2 e6 7.Bb5 Nc6 8.h3 Bh5 9.g4 Bg6 10.Ne5 Qc7 11.h4 Bd6 12.Ng6 hg6 13.g5 Nh5 14.Qf3 0–0–0 15.Bc6 bc6 16.Nc3 e5 17.d3 f5 18.Ne2 Rhe8 19.Rh3 e4 20.de4 Re4 21.0–0–0 Nf4 22.Nf4= Bf4 23.Kb1 Be5 24.Be5 Qe5 25.Qd3 Kb7 26.b5 c5 27.Re3 Re3 28.fe3 Qe4 29.Qc3 d4 30.Qc5+= Qe3 31.Qc6 Kb8 32.b6 ab6?? 33.Qb6+– Kc8 34.Qc6 Kb8 35.Ka2 1–0. market (2185) – Siegmar (1880), GameColony.com, 2002.

5.a3 Bg4 6.Bb2 e6 7.h3 Bh5 8.g4 Bg6 9.Bb5 Nbd7? (Better is 9...Nc6=) 10.g5+– Ne4 11.Ne5 (11...Nf2 12.Bd7 Qd7 13.Kf2+–) 1–0. market (2130) – Lefevre (2140), GameColony.com, 2002.

5.Bb2 e6 6.a3 a5 7.b5 Be7 8.Be2 0–0 9.0–0 Nbd7 10.Re1 Bd6 11.d4 Nb6 12.Bd3 Bd7 13.Ne5 Qc7 14.a4 Rfc8 15.Nd2 Be8 16.c4 dc4= 17.Ndc4 Nc4 18.Bc4 Qd8 19.Rc1 Rc7 20.Qb3 Bb4 21.Re2 Rac8 22.Rec2 Nd5= 23.h3 Nf4 24.Qf3 Nd5 25.Qe4 Qg5 26.Qd3 Bd6 27.Bd5 ed5 28.Rc7 Rc7 29.Rc7 Bc7 30.Qc3 Qd8 31.Bc1 Bd6 32.Qb3 Bb8 33.Nd3 f6 34.b6 Bc6 35.Bd2 Qe8 36.Nc5+= Bd6 ½–½. Rosner,Dirk – Coltharp,Cameron, corr SOK–98–E003A, 1998.

5.Bb2 e6 6.a3 Bd6 7.Bd3 Nbd7 8.Qe2 0–0 9.0–0 e5 (9...a5 10.ba5 Qa5 11.Re1=) 10.Ne5 Re8 11.f4 Qb6 (11...Qc7 12.Qf2 Ne5 13.Be5 Be5 14.fe5 Re5 15.Nc3=) 12.Kh1 Ne5 13.fe5 d4 14.Rf6 (worse is 14.ef6 Re2 15.Be2 Be5–/+) 14...gf6 15.Qh5 fe5 (15...Be5 16.Qh7 Kf8 17.c3=) 16.Qh7 Kf8 17.a4 (17.c3!?=) 17...Bb4–/+ 18.Qh8 Ke7 19.Qe5 Kd8 20.Qd5 (20.Qd4?? Qd4 21.Bd4 Re1 22.Bg1 Bc5–+) 20...Qd6 21.Qd6 Bd6 22.Na3 Rh8 23.h3 Rh4 24.Nb5 Bc5 25.Kh2 a6 26.Kg3 ab5 27.Kh4 ba4 28.Ba3 Be7 29.Kg3 Ra5 30.Bb2 Bf6 31.Kf4 Kc7 32.g4= Be6 33.Kf3 Bd5 34.Kf4 Bg2 35.Kg3 Bc6 36.Ba3 Be5 37.Kf2 b5 38.h4 Bd6 39.c3 Ba3 40.Ra3 Ra8 41.h5 Kd6 42.h6 Ke5 43.h7 Kf4 44.Ra1 Rh8 45.Rf1 Bf3 46.g5 a3 47.Ra1 Be4 48.Be4 Ke4 49.Ra3 Rh7 50.Rb3 ½–½. Schulz,Hans_Juergen – Sternik,Ryszard, TT–19.49 ETC, 2005.

5.Bb2 e6 6.a3 Bd6 7.Be2 =.

5.Bb2 e6 6.a3 Nbd7 7.d4 Bd6 8.Bd3 0–0 9.0–0 Qc7 10.Re1 a6 11.Nbd2 b5 12.Nb3 Nb6 13.Nc5 Nc4 14.Bc3 Rd8 15.a4 Bd7 16.Ne5 Be8 17.Qf3 h6 18.a5 Rdc8 19.Bc4+= dc4 20.Bd2 Bc6= 21.Qh3 Nd5 22.Bh6?? Re8?? (better is 22...gh6 23.Nc6 Qc6 24.Qh6 Bf4–+ (24...Nb4 25.Re4 Bh2 26.Qh2 Nc2 27.Qg3 Kf8 28.Rd1–/+)). Baer,Werner – Zulauff,Harri, TT–18 ETC, 2005.

5.Bb2 e6 6.c4 Bb4–/+ 7.cd5 0–0 8.de6 Be6 9.Be2 Nc6 10.Nc3 Rc8 ½–½. Netusil,Miroslav (2335) – Svatos,Jan (2275), CZE–chT1W, 2006. (=1.e4 c6 2.b4 d5 3.ed5 cd5 4.Nf3 Nf6)

5.b5 Bf5 6.Be2 e6 7.a3 Bd6=+ 8.d4 Nbd7 9.Bg5 Qc7 Attacking the backward pawn on c2 10.Bd3 Bd3 11.cd3 Qa5–+ 12.Qd2 Qb5 13.Nc3 Qa5 14.Rb1 Rc8 15.Rc1 Ba3 16.Qa2 Rc3 17.Rc3 Qc3 (18.Ke2 0–0–+) 0–1. Kingeorge (2030) – hertford (2140), ChessWorld.net, 2003.

5.Bb5 Bd7 6.Be2 =.

5.d4 e6 6.a3 Bd6 =.

5.Be2 Bf5 6.0–0 Nbd7 7.Nh4 Bg6 8.a3 e5 9.d4 Qc7 10.Ng6 hg6 11.Re1 0–0–0 12.h3 e4 13.Bd2 Nb6 14.c3 Bd6 15.a4 Qd7 16.Bb5 Qf5 17.Re3 Bf4 18.Re1 Rh3?? 19.Bf4 Rdh8 (20.gh3 Qf4+–). Rosner,Dirk – Vehre,John, corr EM–M–GT–015 ICCF Email, 1998.

4.Nf3 Bg4

5.Bb2 Nd7 6.Be2 Ngf6 7.0–0 e6 8.a3 a5 9.h3 Bf3=+ 10.Bf3 ab4 11.Re1 Bd6 12.ab4 Bb4 13.Ra8=+ Qa8 14.Qe2 0–0 15.Qb5 Qa5 16.Qa5 Ba5 17.Nc3 Rc8 18.Ra1 Bb6 19.Ra3 Ne8 20.Rb3 Nd6 21.Bg4 d4 22.Nd5 Bd8 23.Nb4 Nc5 24.Ra3 Nc4 25.Ra2 Nb2 26.Rb2 Bg5 27.d3 Ra8 28.Bf3 Kf8 29.g3 Ke7 30.Kg2 Kd6 31.h4 Bc1 32.Ra2 Ra3 33.Kf1 f5 34.Bg2 e5 35.Ra3 Ba3 36.Nd5 b5 37.Ke1 e4 38.de4 fe4 39.Nf4 Ke5 (40.f3 Bc1–+; 39...Bb2 40.Ke2–+) 0–1. Mchess5 – Rebel8, 60/60 Aachen, 1996.

5.Bb2 Nf6 6.h3 Bd7 7.a3 =.

5.Bb2 Nf6 6.h3 Bf3 7.Bb5 Nbd7 8.Qf3 = (< 8.gf3 a6 9.Bd7 Qd7–/+).

5.Bb5 Nc6 6.0–0 e6 7.Bb2 Qb6 8.Na3 Nf6 9.Bf6 gf6=+ 10.c3 a5 11.ba5 Ra5 12.Bc6 bc6 13.Nc2= Rg8 14.d4 Bd6 15.Ne3 Bh5 16.Kh1 Ra3–/+ 17.c4 Qa6 18.c5 Bc7 19.Qc2 Bg6 20.Qb2=+ Be4 21.Nh4 Kd7 22.f3 Rb8 23.Qf2 Bd3 24.Rfd1 Qa4 25.Ng4 Ke7 26.Re1 h5 27.Ne3 Kf8 28.Nd1 Qb4 29.f4 Be4 30.Rf1 f5 31.Kg1 Bd8 32.Nf3 Bf3 33.gf3 Bf6 34.Kg2 Bd4 35.Qh4 Ba1 36.Kh1 Qc4 37.Rg1 Bd4 38.Re1 Ra2 39.Qh5 Qc2 40.Qh6 Ke7 41.Re6 fe6 42.Qh4 Kf8 43.Qh5 Qd1# 0–1. Polo,Raphael – Luzuriaga,Norberto Horacio, corr or01–015 E–mail, 2002.

5.h3 Bd7 =.

5.Bb2 e6

6.Bb5 Nc6 7.0–0 Nf6 8.a3 Bd6 9.d3 0–0 10.Nbd2 a5 11.c3 Qb6 12.Bc6 bc6 13.Qc2 Rfb8 14.Rfb1 Bf5 15.Nb3 Qa6 16.Na5? Bd3 17.Qd2 Bb1–+ 18.Rb1 Bc7 19.Nb3 Qc4 20.Nbd4 c5 21.Nc6 cb4 22.Nb8 ba3 23.Ba3 Ra3 24.Nd4 Ra2 25.Qe1 Ne4 26.Ne6 fe6 0–1. Trkn – alexander2000, itsyourturn.com, 2000.

6.h3 Bf3 7.gf3 Bb4?? 8.Bg7 Qg5 9.Bh8 +–.

6.h3 Bf3 7.gf3 Nf6 =+.

6.h3 Bf3 7.Qf3 Nf6 8.a3 =.

6.h3 Bh5 7.a3 Nf6 8.g4 Bg6 9.Bb5 Nc6 10.h4 Qb6 11.Bc6 bc6 12.h5 Be4 13.Rh4 h6 14.Bf6= gf6 15.d3 Bf3 16.Qf3 a5 17.b5 Qb5 18.d4 Rg8 19.Nc3 Qb2 20.Ra2 Qc1 21.Nd1 f5 22.Qe3? Qe3–+ 23.Ne3 Be7 24.Rh3 f4 25.Nd1 Rg4 26.Nb2 f3 27.c3 Re4 28.Kd1 c5 29.dc5 Bc5 30.Rf3 Rh4 31.Nd3 Rh1 32.Kc2 Bd6 33.Rb2 Ba3 34.Rb7 Be7 35.Ne5 f5 36.Rb6 Rh5 37.Re6 Kf8 38.Rd3 Ra7 39.Rd5 Rh2 40.Nc6 Rf2 41.Kd3 Rc7 42.Ne7 Re7 43.Rh6 Rf3 44.Kd2 Rf2 45.Kd3= Rf3 (45...a4!?=+) ½–½. Schulz,Hans_Juergen – Bonetti,Shane, TT–11 ETC, 2003.

6.a3 Nf6

7.h3 Bh5 8.g4 Bg6 9.Bb5 Nc6=+.

7.h3 Bh5 8.g4 Bg6 9.Bb5 Nbd7?? 10.g5+– Ne4 11.Ne5 Nf2 12.Bd7 Qd7 13.Qe2 Nd3 14.Nd3+–.

7.h3 Bh5 8.g4 Bg6 9.Bb5 Nbd7?? 10.g5+– Ne4 11.Ne5 Qg5? 12.Nd7 (12.Bd7!? Kd8 13.Qf3 Bd6 14.Ng6 fg6+–) 12...Qg2 (12...0–0–0 13.Ne5 d4 14.Ng6 hg6 15.Qe2+/–) 13.Rf1 Qh3 14.Nb6 Kd8 15.Na8 Bd6 16.Bg7 Rg8 17.d3 Nf2 18.Bf6 Kc8 19.Qe2 Bh5–+ 20.Qf2 Bg3 21.Kd2 Bf2 22.Rf2 Rg1 23.Kc3 Qe3 24.Bd4 Qe1 25.Kb3 e5 26.Nd2 Qf2 27.Rg1 Qd4 28.Rg8 1–0. kamret (2225) – Fetzer (1835), GameColony.com, 2003.

7.h3 Bh5 8.g4 Bg6 9.Ne5 Bd6 10.g5 Ne4 11.d3 Qg5 12.Nf3 Nf2 13.Kf2 Qg3 14.Ke2 Qf3 15.Kf3 Bh5 16.Kf2 Bd1–/+.

7.h3 Bh5 8.g4 Bg6 9.Ne5 Bd6 10.g5 Ne4 11.d3 Qg5 12.Nf3 Nf2 13.Ng5 Nd1 14.Kd1+/–.

7.h3 Bh5 8.g4 Bg6 9.Ne5 Bd6 10.g5 Ne4 11.d3 Ng5 12.Ng6 hg6 13.Bg7 Rh4=+.

7.h3 Bh5 8.g4 Bg6 9.Ne5 Bd6 10.Ng6 hg6 11.h4 (11.Nc3 Nc6=) 11...g5 (11...Nc6 12.g5 Nh5 13.Nc3=) 12.h5= Qc7 (12...Nc6 13.Bb5=) 13.Bf6 gf6 14.Nc3 Be5 (14...a6 15.Rh3=) 15.Nb5 Qb6 16.d4 Bf4 17.Nc3 a5 18.Na4 Qc7 19.b5 Ke7 20.Rb1+= Nd7 21.b6 Qd6 22.Qd3 Rac8 23.Rb5 Rc4= 24.Ra5 Rhc8 25.Ra7=+ Rc2 26.Rb7 Rd2 27.Qb1 Rd4 28.Bb5= Qe5 29.Kf1 Rc1 30.Qc1 Bc1 31.Rd7 Kf8 32.Nc5 Rd1 33.Kg2 Rh1 34.Kh1 Qd4?? 35.h6=+ Kg8?? 36.Bd3+– f5 37.b7 Bf4 38.gf5 Qf2?? 39.Rd8 Kh7 40.f6 Kh6 41.Rh8# 1–0. kamret (2190) – elo2102 (1955), GameColony.com, 2003.

7.h3 Bh5 8.g4 Bg6 9.Ne5 Nbd7 10.Ng6 hg6 11.Nc3=.

3.ed5 Qd5

4.Nc3 Qd6 5.a3 a5 6.b5 Bf5 7.Nf3 Nf6 8.Rb1 Nd5 9.bc6 bc6 10.Nd5 Qd5 11.Be2 e6 12.0–0 Be7 13.d4 Nd7 14.c4 Qe4 15.Rb7 Rd8 16.Ra7 0–0 17.Re1 Bf6 18.Bf1 Qg4 19.Ra5 c5 20.Be3 (20.dc5 Bc3 21.Bd2 Ba5 22.Ba5 Ra8+=) 20...Qg6 21.Qa1 cd4 22.Bd4 Be4 23.Bf6 Nf6 24.Ne5 Qh6 25.Qc3 Rd2 26.Qe3 Qe3 27.Re3 Bf5 28.Ra7 Rc2 29.f3 g5 30.Rb3 Bg6 31.Rbb7 Rc1 32.Kf2 Rc2 33.Ke3 Rc3 34.Kd4 Rc2 35.Ng6 hg6 36.Ke5 Nh5 37.Rb1+– Nf4 38.g3 Nh5 39.g4 Nf4 40.Kf6 Rh2 +–. b4_player (2260) – maverick0212 (2245), GameColony.com, 2003.

4.Nc3 Qd6 5.Rb1 Nf6 6.d4 b5 7.Nf3 Na6 8.a3 Nd7 9.Be2 e5 10.0–0 ed4 11.Nd4 Ne5 12.f4 Nc4 13.Bc4 bc4 14.Be3 Be7 15.Ne4 Qd5 16.Nc3 Qd6 17.Ne4 Qd5 18.Bf2 Qe4 19.Re1 Qd5 20.Qe2 Qd6?? 21.Nc6+/– Be6 22.Ne7 Qe7 23.f5 0–0 24.fe6 Rac8 25.Bd4 Rfd8 26.Qe3 fe6 27.Ba7 e5 28.Bd4! Rd5 29.Be5 Rcd8 30.Qb6 Ra8 31.Qc6 Qa7 32.Kh1 Rad8 33.a4 R5d7? 34.Qc4 Kh8 35.a5 Rd2 36.b5 Qf2 37.Qg4 Qa7 38.ba6 Qe7 39.Bc3 Qd7 40.Qg3 Rc2 41.Rb7 Rd2 42.Bg7 Kg8 43.Bd4 Kf8 44.Rd7 Rd7 45.Qf4 Kg8 46.Re8# 1–0. Bestia02c – Mint161, computer chess game, 2000.

4.Nc3 Qd6 5.Rb1 Nf6 6.d4 Nbd7 7.Nf3 e5 8.Qe2 Ng4 9.h3 Nh6 10.de5 Qe6 11.Qe4 a5 12.Bc4 Qf5 13.Bh6 Qe4 14.Ne4 gh6 15.ba5 Ra5 16.Nd6 Bd6 17.ed6 0–0 18.0–0 b5 19.Bb3 c5 20.Bd5 Nf6 21.Rfd1 Bf5 22.Rb2 c4 23.Nd4 c3 24.Rb3 Bg6 25.Bf3 Ra2 26.Rc3 Rd8 27.Nc6 Re8 28.Nd4 b4?? 29.Rc4+– Rf8 30.Rb4 Ra6 31.Nc6 Bc2 32.Rc1 Ba4 33.Ne7 Kh8 34.Nf5 Bd7 35.Bb7 Ra5 36.Nh6 Rb8 37.Rcb1 Be6 38.f3 Rh5 39.Ng4 Ne8 40.Rd4 Rd8 41.Rbd1 Bd7 42.f4 Rb5 43.Ne5 Be6 44.Bc6 Rb2 45.Be8 Re8 46.d7 Rd8 47.f5! Bb3 48.Rc1 Ba2 49.Rc8 Rb8 50.Rb8 Rb8 51.f6 Rd8 52.Nc6 Rd7 53.Rd7 h5 54.Rd8 Kh7 55.Ne5 h4 56.Kf2 Be6 57.g4! hg3 58.Kg3 Bb3 59.h4 Be6 60.Rf8 Bb3 61.Kf4 Ba2 62.Kg5 Bd5 63.h5 Be4 64.Nf7 Bd5 65.Rh8# 1–0. Bestia02c – Mint161, computer chess game, 2000.

3.e5 a5

4.b5 Qb6 5.Nc3 Bf5 6.Rb1 d4? (Better is 6...Qc5 7.bc6 bc6+=) 7.bc6+– Qc5 (7...Qc6?? 8.Bb5 dc3 9.Bc6 Nc6 10.Rb7 Ne5 11.Rb5+– (11.dc3?! Be4 12.Rb5 Bg2 13.Re5 Bh1+/–)) 8.cb7 Ra7 9.Rb5 Qc6 10.Rb3 Qg6 11.Bb5 Kd8 12.Qf3 (12...e6 13.Qf4+–) 1–0. Taulien,Hans_Juergen – Schilling,Hans, remoteschach.de, 2002.

4.b5 Qd7 5.a4 Qf5 6.d4 Qe4 7.Be3 Bf5 8.c3 f6 9.Nf3 e6 10.Nbd2 Qc2 11.Qc2 Bc2 12.Be2 cb5 13.ab5 a4+= 14.0–0 a3 15.c4 dc4 16.Bc4 White fights for the Initiative. 16...Kd7 17.d5+/– ed5 18.Bd5 Bd3 19.Rfc1 Ra5 20.Bb7?? Rb5+/– 21.Bc8 Kd8 22.ef6 Nf6 23.Ng5 Ke7? 24.Ra3+– Bf5 25.Bc5 Rc5 26.Rc5 Bc8 27.Rc8 h6 28.Ra7 Nbd7 29.Nge4 Ke6 30.Nf6 Nf6 31.Raa8 Kf7 32.Nc4 Ng4 33.h3 Nf2 34.Rf8! Rf8 35.Rf8 A double attack 35...Kf8 36.Kf2 (36...Ke7 37.Ke3+–) 1–0. Labahn,Wolfgang – Zugzwang 5.20, Paderborn, 1990.

3.e5 Qb6

4.a3 a5 5.c3 ab4 6.cb4 e6 7.d4? Bb4!–/+ 8.Bd2? Qd4–+ 9.Ra2 Qe5 10.Be2 Bd2 11.Rd2 Nf6 12.Nf3 Qc7 13.0–0 0–0 14.Rd4 Ne4 15.Bd3 c5 16.Ra4 Ra4 17.Qa4 f5 18.Qd1 Nc6 19.a4 Ne5 20.Na3 Nd3 21.Qd3 Bd7 22.Nb5 Qa5 23.Ra1 Ra8 24.g3 Bb5 25.Qb3 Qc3 26.Qc3 Nc3 27.Re1 Ne2 28.Re2 Be2 29.Kg2 Bf3 30.Kf3 Ra4 (31.Ke3 b5–+) 0–1. danelson (1725) – marekdrob, net–chess.com, 2006.

4.a3 Qd4 5.Bb2 Qb2 6.Nc3 –/+.

4.Ba3 Qd4–/+ 5.Nc3 Qe5 6.Qe2 Qe2 7.Be2 e5 8.0–0–0? a5–+ 9.Bb2 ab4 10.Nb1 f6 11.Nf3 Ra2 12.d4 e4 13.Ng1 Nd7 14.Bg4 Ne7 15.Bd7 Kd7 16.Ne2 Nf5 17.c3 b6 18.cb4 Bb4 19.g4 Nd6 20.Nbc3 Ra7 21.Rhg1 Nc4 22.Kc2 g5 23.Ra1 Ra1 24.Ra1 h5 25.Ra7 Ke6 26.Na4 hg4 27.Ra8 Kd7 28.Ra7 Kd8 29.Kb3 Bd6 30.Ng3 Rh2 31.Nf5 Bf5 32.Rg7 e3 33.fe3 Bc2 34.Kc3 Ne3 35.Nb6 Nd1# 0–1. psywar – pierre, ChessHere.com, 2006.

4.b5 Qd4 5.Nc3 Qe5 6.Qe2 Qe2 7.Be2 e5 8.Nf3 Bd6 9.Bb2 Nf6 10.a4 Bf5 11.d3 0–0 12.0–0 Nbd7 13.Nh4 Bg6 14.Ng6 fg6 15.Bf3 d4 16.Ne4 Ne4 17.Be4 Nf6 18.bc6 Ne4 19.de4 bc6 20.Rfd1 Rab8 21.Rab1 Rb6 22.Rd3?? Rfb8 0–1. gtate (1930) – ciclamino (2155), net–chess.com, 2003.

4.b5 Qd4 5.Nc3 Qe5 6.Be2 d4 7.Nf3 Qf4 8.Nb1 cb5 9.Bb5 Bd7 10.d3 Qd6 11.Ba3?? Qe6–+ 12.Kd2 Bb5 13.Re1 Qh6 14.Ke2 Bd7 15.h3 Nc6 16.c3 Bf5 17.cd4 Rd8 18.Nc3 Nd4 (19.Nd4 Rd4–+) 0–1. jpettit (2240) – jjones (2535), net–chess.com, 2005.

4.c3 g6 5.d4 Bg7 6.Bd3 Nh6 7.Ne2 0–0 8.0–0 Nf5 9.Nd2 f6 10.Nf3 fe5 11.Ne5 Nd7 12.Bf5 Rf5 13.Ng3 Re5 14.de5 Ne5 15.Be3 Qc7 16.Bd4 Ng4 17.Bg7 Kg7 18.Qe2 Nh6 19.Rfe1 e6 20.c4 Qf7 21.cd5 ed5 22.Qe5 Kg8 23.Qg5 Qf8 24.Re7 Ng4 25.Rae1 Qf2 26.Kh1 Bd7 27.h3 Qg3? 28.hg4+– (28...Qg4 29.Qf6 Qh5 30.Kg1+–) 1–0. Labahn,Wolfgang (2220) – Bekker Jensen,Anne (2070), Wichern op 5th, 1999.

4.c3 Nh6 5.d4 a5 6.Qa4 Bf5 7.Bh6 gh6 8.Nd2 Nd7 9.Nb3 Qa7 10.ba5 e6=+ 11.Nd2 Qa5 12.Qa5 Ra5 13.Nb3 Ra4–/+ 14.Ne2 Ba3 15.Rd1 Be7 16.Rd2=+ 0–0 17.Rb2 Rfa8–/+ 18.Nec1 Ba3 19.Rd2 Be7 20.Rb2 Kg7 21.g4 Bg4?? 22.Rg1+/– f5 23.f3+– Ba3 (24.Rf2 h5+–) 1–0. Robert Edward (1830) – Garfield85, internet, 2006.

4.c3 a5

5.Qa4 Bf5 6.d4 Nd7 7.Nf3 e6 8.Be2 Qd8 9.ba5 Ra5 10.Qb3 b5 11.0–0 f6 12.Bf4 Be7 13.Re1 Qb6 14.Nbd2 c5 15.Qd1 c4 16.Nh4 fe5 17.Nf5 ef5 18.de5 Bc5 19.Rf1 Ne7 20.a4 0–0 21.Nf3 Rfa8 22.Bg5 Qb7 23.Rb1 Ng6 24.Rb5 Rb5 25.ab5 Nge5 26.Ne5 Ne5 27.Qd2 ½–½. Wochnik – Pommerel, corr 3GMM½–01 1997.

5.Qa4 Bf5 6.d4 Nd7 7.Nf3 e6 8.Be2 f6 9.ef6 gf6 10.Nbd2 Bd6 11.Nh4 1–0. Zimmermann – Pleschke, Tigerschachclub, 2002.

5.ba5 Qa5 6.Nf3 c5 7.a4 Bd7 8.Bb2 c4 9.d3 Ba4 10.Qd2 b5 11.Be2 Nd7 12.Ba3 g6 13.dc4 dc4 14.0–0 Ra6 15.Bd1 Qc7 16.Ba4 ba4 17.Re1 Bg7 18.Bd6 Qc8 19.Bb4 Nb6 20.Na3 Qd7 21.Qf4 Qf5 22.Qd4 Qc8 23.Nb5 Qc6=+ 24.Rad1 Nd7 25.Nd6 ed6 26.ed6 Kf8 27.Re8!? Ke8 28.Qg7 a3 29.Qh8 Kf8 30.Ng5 (30...Qg2 31.Kg2+–) 1–0. Taulien,Hans_Juergen – Staats,Carsten, RSS7E–1 remoteschach.de, 2002.

5.ba5 Qa5 6.Nf3 c5 7.Be2 Nc6 8.d3 =.

5.ba5 Qa5 6.Nf3 c5 7.Be2 e6 8.0–0+= Ne7 9.d4 Nbc6 10.Be3 Nf5 11.Bd3 cd4 12.cd4 Be7 13.Qb3 0–0 14.Nc3 Ne3 15.fe3 Nb4 Can a2 get defended? 16.Bb1 Qa3 17.Nb5?? Qb3–+ 18.ab3 Ra1 19.Bh7 Kh7 20.Ra1 Bd7 21.Nd6 Bd6 22.ed6 f6 (23.Ra7 Rb8–+) 0–1. Labahn,Wolfgang (2215) – Boehle,Lars (2345), Dortmund op–A, 1993.

5.ba5 Qa5 6.Nf3 Bf5 7.Nd4 Bb1 8.Rb1 =.

5.ba5 Ra5 6.d4 Bf5 7.Nd2 e6 8.Nb3 Ra8 9.a4!?

5.ba5 Ra5 6.d4 Bf5 7.Nd2 e6 8.Nb3 Ra8 9.Bd3 Ne7 10.Ne2 Nd7 11.0–0 c5 12.Nc5 Nc5 13.dc5 Qc5 14.Be3 Qc7 15.Nd4 Bd3 16.Qd3 Nc6 17.Rfb1 Ne5 18.Qb5 Qd7 19.Qb7 Qb7 20.Rb7 Bd6 21.Nb5 Nc4 22.a4 0–0 23.Nd6 Nd6 24.Rd7 Nc4 25.Ba7 Rfc8 26.Rb1 Ne5 27.Rdb7 Nc6 28.Be3 Ra4–/+ 29.g3 h6 30.Rd7 Ne5–+ 31.Re7 Rac4 32.Rbb7 Rf8 33.Kg2 Nc6 34.Red7 Rc3 35.Bf4 e5 36.Bd2 Rd3 Black prepares d4 37.Bc1 d4 38.Rdc7 Nd8 39.Ra7 Ne6 40.Rc4 Rc3 41.Raa4 Rc8 42.Rc3 Rc3 43.Ra8 Kh7 44.Bb2 Rc2 45.Rb8 Kg6 46.Rb6 Kf5 47.Rb7 Ke4 48.Kf1 Nc5 49.Rc7 Rb2 50.Rc5 Kf3 51.Ke1 Re2 52.Kd1 Rf2 53.Re5 f6 54.Re7 Rh2 55.Rg7 Ke3 56.Rf7 Rh1 57.Kc2 d3 58.Kc3 Rc1 59.Kb2 d2 60.Re7 Kf3 (61.Rd7 d1Q 62.Rd1 Rd1–+) 0–1. Labahn,Wolfgang – Glettenberg,J, Paderborn, 1990.

5.ba5 Ra5 6.d4 Bf5 7.Nd2 e6 8.Nb3 Ra8 9.Nf3 c5 10.dc5 Bc5 11.Nc5 Qc5 12.Qb3 Be4 13.Nd4 Ne7 14.Nb5 Kf8 15.Ba3 Qb6 16.Be7 Ke7 17.Qb4 Kd7 18.Nd6 Qb4 19.cb4 Nc6 20.Bb5 Bd3 21.Bc6 bc6 22.a4 Bg6 23.Kd2 f6 24.f4 Ra7 25.Rhc1 Rha8 26.a5 Bh5 27.h4 Rb8 28.Ra4 Ra6 29.Kd3 Ke7 30.Kd4 h6 31.Rca1 Kd7 ½–½. Gyger,Werner – Markus,Roland, 7.CH CiF, 2000.

5.ba5 Ra5 6.d4 Bf5 7.Nd2 e6 8.Nb3 Ra8 9.Nf3 Ne7 =.

4.c3 Bf5

5.d4 Nd7 6.Nf3 e6 7.Be2 f6 8.0–0 0–0–0 9.a4 a5 10.Be3 Nh6 11.Bh6 gh6 12.ef6 Nf6 13.ba5 Qa5 14.Ne5 Rg8 15.f4 Rg7 16.Qb3 Bd6 17.Bf3 h5 18.Nd2 h4 19.Kh1 h3 20.g3 h5 21.Ra2 h4 22.gh4 Rh8 23.c4 Rh4 24.Qe3 Rh8 25.c5 Bc7 26.Nb3 Qb4 27.Nd2 Rhg8 28.a5 Ba5 29.Nb3 Qc3–/+ 30.Qc3 Bc3 31.Re2 Kc7 32.Rc1 Ne4 33.Rf1 Ra8 34.Rc1 Bb4 35.Rg1 Rg1 36.Kg1 Nc3 37.Rf2 Ra3 38.Nc1 Nb5 (39.Na2 Ba5–+) 0–1. Woelfelschneider,Peter – Pleschke,Helmut, 3. B4 Thementurnier, 2000.

5.d4 Nd7 6.Nf3 e6 7.Nh4 Bb1 8.Rb1 c5 9.a3 +=.

5.d4 Nd7 6.Nf3 e6 7.Nh4 Be4 8.Nd2+= a5 9.ba5 Qa5 10.Qb3 h5 11.Ne4 de4 12.Bd2 Be7 13.g3 Qa3 14.Qb7+/– Bg5 15.Qb4 Bd2 16.Kd2 Qa7 17.f4 Rb8 18.Qc4 Rb2 19.Ke1 Qa3 20.Ng2?? Rg2–/+ 21.Bg2 Qb2 A double attack 22.Be4 Qa1 23.Ke2 Qb2 24.Kf3 Ne7 25.Rb1 Qh2?? 26.Bc6+= Do you see the mate threat? 26...0–0 27.Bd7 Nf5 Black prepares h4 28.Qd3 Qg3 29.Ke2 Qg2 30.Ke1 h4 31.Rb6 Ne7 32.Qf1 Qg3=+ 33.Kd2 h3 (34.Rb7 Nd5–/+; 33...Nd5!? 34.Rb3 Ra8=+) 0–1. Baer,Werner – Bonetti,Shane, TT–09 ETC, 2003.

5.d4 Nd7 6.Nf3 h6 7.Be2 =.

5.d4 e6 6.Bd3 Bd3 7.Qd3.

5.d4 e6 6.Nf3 =.

5.Nf3 a5 =.

5.Nf3 Nd7 6.d4 e6 7.Be3 Ne7 8.a4 a5 9.b5 Rc8 10.Na3 Bg6 11.Nh4 Nf5 12.Nf5 Bf5 13.Be2 Be7 14.0–0 c5 15.c4 cd4 16.Bd4 Bc5 17.Bc5 Rc5 18.Qd4 0–0 19.Rfd1 Qc7 20.f4 Nb6 21.cd5 Rd5 22.Qe3 Rd1 23.Bd1 Nd5 24.Qd4 Rd8 25.Nc4 Nf4 26.Qf4 Qc5 27.Qe3 Qc4 28.Bb3 Qb4 29.Rd1 Rd1 30.Bd1 h6 31.h3 Qb1 32.Qd2 Qa1 33.Qe2 Qd4 34.Kh1 Be4 35.Bc2 Bc2 36.Qc2 Qa1 37.Kh2 Qe5 38.g3 Qd5 39.Qc7 Qd2 40.Kg1 Qd4 41.Kh1 b6 42.Kg2 g5 43.Qc2 Kg7 44.g4 Qe5 45.Qf2 Qe4 46.Kg1 Qa4 47.Qb6 Qd1 48.Kf2 a4 49.Qa5 Qc2 50.Ke3 Qb3 51.Kd2 Qb2 52.Kd3 a3 53.Qc3 Kf8 54.b6 Qb1 55.Kd2 a2 0–1. Zimmermann,Joerg (1700) – Wittal,Werner (1700), TSC, 2002.

5.Nf3 Nd7 6.d4 e6 7.Nh4 Be4 8.Nd2 a5 9.Ne4 de4 10.b5 c5 11.Be3 cd4 12.Bd4 Bc5 13.Qd2 Rd8 14.Rd1 Bd4 15.cd4 Ne5 16.Qe3 Ng6 17.Ng6 hg6 18.Qe4 Nf6 19.Qf4 Rh5 20.Be2 Rhd5 21.0–0 Rd4 22.Rd4 Rd4 23.Qc1 Rd7 24.Qc3 Rc7 25.Qb2 Rc5 26.a4 Qc7 27.Bf3 Rc4 28.Qb3 Rb4 29.Qa3 Nd7 30.g3 Rc4 31.Qa1 Kf8 32.Be2 Rc3 33.Rd1 Qc5 34.Kg2 Ke7 35.Rd2 Rc2 36.Rc2 Qc2 37.Bf3 b6 38.Qd4 e5 39.Qh4 Nf6 40.Bc6 Qd1 41.Qc4 Qd4 42.Qb3 Kf8 43.Qa3 Kg8 44.Qe7 Ng4 45.Qe8 Kh7 46.Qf7 Qa4 47.Bd5 Nf6 48.Qe6 Qg4 49.Qe5 a4 50.Bf3 Qc4 51.Qe3 Qb5–+ 52.Qe6 a3 53.Qh3 Nh5 54.Qe6 Qg5 (55.Qc4 Nf6–+) 0–1. Miraglia,Jorge – Pommerel,Wim, email 4AMM–F, 1998.

5.Nf3 g6 6.d4 Bg7 7.Nbd2 Nh6 8.Be2 0–0 9.Nb3 f6 10.0–0 fe5 11.Ne5 Nd7 12.f4 Nf7 13.Bf3 (13.Nd7 Bd7 14.Nc5 Bf5=) 13...Qc7 (Better is 13...Nfe5!? 14.fe5 Ne5–/+) 14.Nd3 Nf6 15.g4 Be6 16.Re1 Bc8 17.g5 Ne8 18.b5 Ned6 19.bc6 bc6 20.Qe2 Nf5 21.Ndc5 N7d6 22.Kh1 Kh8 23.Nd3 Nh4 24.Ne5 Bf5 25.Nd2 Nf3 26.Ndf3 Be4 27.Kg1 Rab8 28.Be3 Rb7 29.a4 a5 30.Nd2 Rb2 31.Qg4 Bf5 32.Qh4 Rfb8 33.c4 Bc2 34.Rec1 Nf5 35.Qf2 Be5 36.de5 Ne3 37.Qe3 Qb6 38.c5 Qb4 39.Nf3 Rb3 40.Qd2 Rf3 41.Rc2 Rf4 42.Qb4 Rbb4 43.e6 Rf5 44.Rf2 Rg5 45.Kh1 Rf5 46.Raf1 Re5 47.Rf8 Kg7 48.R1f7 Kh6 49.Re7 Ra4 50.Kg2 Kg5 51.Rh7 Re6 52.Kg3 Re3 53.Rf3 Rf3 54.Kf3 Rc4 55.h4 0–1. Binder,Klaus – Radeiski,Wolfgang, V0081 DESC, 2001.

3.e5 e6

4.a3 a5 5.b5 c5 6.Nc3 b6 7.Nf3 Bb7 8.Be2 (8.Qe2 Ne7=) 8...d4= 9.Na4 Nd7 10.Bb2 Qc7 11.0–0 Ne5 (better is 11...Ne7=) 12.Ne5+/– Qe5 13.Nb6 Ra7 (13...Rb8 14.Nc4 Qg5 15.Bf3+/–) 14.f4 Qc7 (14...Qd6 15.Nc4 Qd5 16.Rf2+–) 15.Nc4 Nf6?? (15...Qc8+–) 16.b6 Qc6 (16...Qb8 17.ba7 Qa7 18.c3+–) 17.Bf3 Qb5 18.ba7 Qc4 (18...Qa6+–) 19.Bb7 Bd6 20.a8Q (20.a8Q Ke7 21.Qh8+–) 1–0. pierre – tkye, internet, 2010. (=1.e4 c6 2.b4 d5 3.e5)

4.a3 c5 =.

4.a3 Nd7 5.Nf3 f6 6.d4 fe5 7.de5 Ne7 (7...a5 8.b5=) 8.Bd3 Ng6 9.Bg6 hg6 10.Qd3 Nb6 (better is 10...Qe7!?+=) 11.Ng5+/– Bd7?? (better is 11...Rh6 12.Nf3 Rh8+/–) 12.Qg6 Ke7 13.Qf7# 1–0. pierre – sum, internet, 2010.

4.a3 g6 5.d4 Bg7 6.Bd3 Ne7 7.Nf3 0–0 8.0–0 b5 9.Bg5 Qd7 10.Nbd2 Na6 11.Nb3 Nf5 12.Qd2 Re8 13.c3 Bb7 14.Nh4 Nh4 15.Bh4 Nc7 16.f4 Rf8 17.Nc5 Qc8 18.Be7 Re8 19.Bd6 Bh6 20.g3 a5 21.ba5 Ra5 22.Qb2 Ba8 23.a4 Ra4 (Better is 23...Ra7+–) 24.Na4 ba4 (25.Ra4 Nb5+–) +–. Marshall,Ron – Richard,Andy, M–1617.1, 1998.

4.Ba3 Qb6 5.d4 Bb4=+ 6.c3 Ba3 7.Na3 Qb2 8.Nc2? Qc3–+ 9.Ke2 Ne7 10.Rc1 Qc4 11.Ke1 Qa2 12.Nf3 b5 13.Bd3 Qa5 14.Nd2 Nd7 15.h4 c5 16.g4?! c4 17.Ra1 Qb6 18.Be2 b4 19.Ne3 Qd4 20.Ra4 b3 21.Qb1 Qe5 22.h5 h6 23.Nd1 0–0 24.f3 Nc5 25.Ra5 Nd3 26.Kf1 Nf4 27.Ne4 Ne2 28.Ke2 Nc6 29.Rc5 Nd4 30.Kf2 Qf4 31.Qb2 Qf3 32.Kg1 Qd1 33.Kg2 Qg4 34.Ng3 Nf5 35.Rh3 Ng3 36.Rg3 Qe4 37.Kh2 e5 The mate threat is Qxg7 38.Rc7 Be6 39.Qg2 Qg2 40.Rg2 e4 41.Rc5 e3 42.Ra5 d4 43.Ra1 b2 44.Rag1 c3 45.Rc2 Bf5 46.Re2 c2 47.Reg2 b1Q 48.Rg7 Kh8 49.Rb1 0–1. IrishBouncer – Long_Knights, ChessWorld.net, 2005.

4.c3 a5 5.ba5 Qa5 6.d4 Ne7 7.Nf3 h5 (7...c5 8.Bd3=) 8.Bg5 (8.Ba3 b6=) 8...Nf5 9.Bd3 Qc7 (9...b6 10.0–0=) 10.Bf5 (10.0–0 b6+/–) 10...ef5 11.g3 (11.0–0 Be6+=) 11...Be6 12.0–0 Be7 13.Qd2 Nd7 14.Be7+– Ke7 15.Qe3 b5 16.Nbd2 g6 17.Ng5 Kf8 18.Ndf3 Kg7 19.Rfb1 Ra3 20.Rb3 Rha8 21.Ra3 Ra3 22.Ne6 fe6 23.Qg5 Nf8 24.Qf6 Kg8 25.Ng5 Qd7 26.f4 Ra7 27.a3+= Qe7 28.Qe7 Re7 29.a4 Ra7 30.a5+– Ra6 31.Kf2 Kg7 32.Ke3 Kg8 33.Ra3 Kg7 34.h3 Kg8 35.Kd3 Kg7 36.Ra2 Kg8 37.Kc2 Kg7 38.Kb3 Kg8 39.Kb4 Kg7 40.Kc5 Kg8 41.Kd6 Kg7 42.Kc7 Kg8 43.Kb7 1–0. Caissa – 300SPARTANS, Live Game Caissa's Web, 2004.

4.c3 c5 5.bc5 Bc5 6.Ba3 Ba3 7.Na3 =.

4.c3 c5 5.bc5+= Bc5 6.d4 Bb6 (6...Be7 7.Qg4 Bf8 8.Nf3+= Nc6 9.Bd3 Bd7; 6...Bf8 7.Bd3 Nc6 8.Nf3 Bd7 9.0–0 Rc8) 7.Qg4 g6 8.Bd3 (8.Nf3 Nc6 9.Bd3 Qc7) 8...Ne7 (8...Ba5 9.Ne2+= Nc6; 8...Nc6 9.Nf3 Qc7) 9.Bg5+/– (9.Nf3 h5) 9...Nd7 (9...h6 10.Qh4+=) 10.Qh4 Ba5 11.Ne2 b6 (11...Nf8!?+/–) 12.Nd2+– Bb7 13.Nb3 Bc3? (better is 13...Rb8+–) 14.Nc3 f6 (14...a6+–) 15.ef6 Nf5 16.Bf5 ef5 (16...Kf7 17.Bd3 h6 18.Bh6 Qf6 19.Qf4+–) 17.f7! (17.f7 Kf7 18.Bd8 Rad8 19.0–0+–) 1–0. Woelfelschneider,Peter – Nagel, 1999.

4.c3 f6 5.d4 Nd7 6.Bd3 Ne7 7.ef6+/– Nf6 8.Nf3 Qc7 9.Ne5 Bd7 10.Bg5 Neg8 11.Qc2 Bd6 12.Bg6! Kf8 13.Nf7 hg6 14.Nh8 Ne4 15.Ng6 Kf7 16.Nh8 (16...Ke8 17.Nd2+–) 1–0. Krasny,Henryk Jan – Pietrzak,Wojciech, corr or01–002 E–mail, 2001.

4.d4 Bb4=+ 5.c3 Ba5 6.Nf3 Ne7 7.Be2 0–0 8.0–0 b5 9.Bd2 Na6 10.Be3 Nf5 11.Bd2 b4 12.Qa4 bc3 13.Nc3 Bc3 14.Bc3 Qc7? 15.Qa3?? c5? 16.dc5 Nc5?? 17.Bb4 Nd7 18.Bf8 Nf8 19.Rfc1 Qb6 20.Qa4 Bd7+/– 21.Qb3 Qb3 22.ab3+– a5 23.b4 a4+/– 24.Rd1 Rb8 25.Rdb1 d4? 26.h3 Bc6+/– 27.b5 Be4 28.Rb4 d3 29.Re4+– de2 30.Re2 Rb5 31.Ra4 Rb1 32.Kh2 h5 33.Rea2 Rb8 34.Nd4 Nd4 35.Rd4 g5 36.Rad2 Ng6 37.Rd8 Rd8 38.Rd8 Kg7 39.Rc8 Ne5 40.Rc5 f6 White gets the initiative 41.Rc7 Nf7 42.g3 e5 43.Kg2 f5 44.h4 Kf8 45.hg5+– Ng5 46.Rc4 e4 47.Rc5+– Nf3 48.Rf5 Kg7 49.Rf3 ef3 50.Kf3 Kg6 51.Kf4 Kf6 52.Kf3?? Kg5?? 53.Kg2 Kg4 54.f3 Kg5 55.Kh3 Kh6? 56.Kh4 Kg6 57.f4 Kh6 58.f5 (58...Kh7 59.Kh5+–) 1–0. nandy conure – xCalvin, ChessWorld.net, 2005.

3.e5 Bf5

4.Na3 e6 5.b5 (5.c3 a5 6.b5 d4=) 5...Qa5 6.Nf3?? (better is 6.Qf3=+) 6...Ba3–+ 7.Ba3 Qa3 8.bc6 Nc6 9.Bb5 Nge7 10.Ng5 (10.c3 Be4–+) 10...0–0 (10...Qb2 11.Bc6 Nc6 12.0–0 Ne5 13.d3–+) 11.0–0 (11.Bc6 Nc6 12.0–0 Ne5–+) 11...h6 (better is 11...Nd4 12.Bd7–+) 12.c3 hg5 13.Qh5 Ne5 14.Qg5 N5g6 15.Rab1 Bb1 16.Rb1 Qa2 17.Bd3 b6 18.h4 f6 19.h5 fg5 20.hg6 Rf6 21.f3 Ng6 22.Rf1 Qd2 23.Bb5 Nf4 24.Bc6 Qe3 25.Kh2 Rh6 (26.Kg3 Ne2 27.Kg4 Rh4#) 0–1. tupadre – csadler, net–chess.com, 2001.

4.Bb2 e6 5.a3 Ne7 6.Nf3 Nd7 7.h3 Ng6 8.d4 Be7 9.Bd3 Bd3 10.cd3 (10.Qd3 a5 11.Qb3 ab4 12.ab4 Ra1 13.Ba1 0–0=+) 10...0–0 11.0–0 Rc8 (11...f6 12.Bc3–/+) 12.Qb3 b6 13.Nbd2 c5 14.b5 cd4 15.Bd4 Nh4 16.Nh4 Bh4 17.Nf3 Re8 18.Qd1 (18.Qa4 Rc7+=) 18...Nf8 (18...Be7 19.Qa4=) 19.Nh4 (19.Qa4!? Rc7 20.Bb6 (< 20.Nh4 Qh4 21.Qb4 Ng6=+) 20...ab6 21.Nh4+=) 19...Qh4= 20.Qg4 Qg4 21.hg4 Ng6 22.g3 Rc2 23.Rfd1 Rec8 24.a4 Re2 (24...f6!? 25.Re1 fe5 26.Be5 Ne5 27.Re5 Rc1 28.Rc1 Rc1 29.Kg2 Kf7=+) 25.Rac1 Rec2 26.Rc2 Rc2 27.Rb1 (27.g5 Kf8=) 27...h6 (27...Rd2 28.Rb3=+) 28.Kg2 (28.Ra1 Rd2 29.Ra3 f6=+) 28...Ra2 (28...Rd2–/+) 29.Rc1?? (better is 29.Ra1 Rd2 30.Ra3=) 29...Ra4–+ 30.Rc8 Kh7 31.Be3 Ne5 32.g5 hg5 33.Bg5 Nd3 34.Rc7 Kg6 35.Be3 d4 36.Bd2 Ra2 37.Bf4 Nf2 38.Kf3 f6 39.Bd6 e5 40.Bf8 Kf5 41.Kg2 Kg4 42.Rg7 Kf5 43.Be7 Ne4 44.Kf3 Rf2 0–1. jimmyjf – boa, ChessWorld.net, 2004.

4.Bb2 e6 5.Nf3 Bb4 6.Be2 Ne7 7.0–0 0–0 8.c3 Ba5 9.d4 Nd7 10.Nbd2 c5 11.Nb3 c4 12.Na5 Qa5 13.a4 Bg4 (13...Rfc8 14.Nh4–/+) 14.h3 (14.Ba3 Rfe8 15.Qb1 Bf3 16.Bf3 Qa6=+) 14...Bh5 15.Ba3 Rfe8 16.Bb4 Qc7 17.a5 Nc6 (17...Bf3 18.Bf3 Qc6 19.Qd2=+) 18.Bd6 Qd8 19.Qa4 f6 20.Qb5 White prepares the advance a6 (20.a6 Bf3 21.Bf3 Nb6=+ (21...fe5?? 22.ab7 Rc8 23.bc8R Qc8 24.de5+–)) 20...Qc8 (20...fe5 21.Qb7 Bf3 22.Bf3–/+) 21.a6 b6 (better is 21...ba6 22.Ra6 Ndb8–/+) 22.Qb2? (22.Rfe1 Bf3 23.Bf3 fe5 24.de5 Rd8=+) 22...Na5 (22...Bf3!? 23.Bf3 fe5–+) 23.Qb5 (23.ef6 Nf6 (23...Qa6?! 24.fg7 Qc8 25.Ne5 Be2 26.Qe2=; 23...gf6?! 24.Qb5=+) 24.Ne5 Be2 25.Qe2 Ne4=+) 23...Nb8 24.ef6 gf6 25.Rfe1 Qa6 26.Qa6? Na6–/+ 27.Nh4 Be2–+ 28.Re2 Kf7 29.Rae1 Nb7 30.Bg3 Nd8 31.f4? Rg8 32.Kh2 Nb8–+ 33.f5 ef5 34.Nf5 Nbc6 35.Nh6 Kg7 36.Nf5 Kh8 37.Re8 Nf7 38.Ra8 Ra8 39.Re6 Nfd8?? 40.Re8# 1–0. gtate (1700) – sgbrito (1900), net–chess.com, 2002.

4.Bb2 e6 5.Nf3 Bb4 6.Be2 Ne7 7.0–0 0–0 8.d4 c5 9.c3 Ba5 10.dc5 Nbc6 (10...Nd7 11.Nbd2–/+) 11.Nbd2 (11.c4 Bb4=+) 11...Rc8 12.Nb3 Bc7 (12...Be4 13.c4–/+) 13.c4=+ dc4 14.Bc4 Bg4 15.h3? (better is 15.Re1!?=+) 15...Qd1–/+ 16.Rad1 Bf3 17.gf3 Be5 18.Be5 Ne5 19.Be2 (19.Bd3 Nd3 20.Rd3 Rfd8–+) 19...N7g6 (19...Nd5 20.Rfe1–+) 20.Kh2 (20.Rd4 Rfd8 21.Rfd1 Rd4 22.Rd4 b6 23.cb6 ab6–+) 20...Nf4 21.Rfe1 Ne2 (better is 21...Rfd8!? 22.Rd8 Rd8–+) 22.Re2–/+ Nf3?? (better is 22...Nc6–/+) 23.Kg3+= Ng5 24.h4 Rfd8 25.Rd8 Rd8 26.hg5 Rd5 27.Kg4 h6 28.gh6 gh6 29.f4 f6? 30.Rg2 Kf7 31.Rc2 Kg6 32.Nd2 Rd3+= 33.Nf3 h5 34.Kg3 h4 35.Kg2 Kh5+= 36.Rd2 Rc3 37.Nd4 e5 38.fe5 fe5 39.Nf5 Rc5 40.Nd6 b6 41.a4 Kg4 42.Re2=+ h3 43.Kh2 Rd5 44.Re4?? Kf3–+ 45.Kh3 Rd6 46.Re5 Rh6 (47.Rh5 Rh5#) 0–1. gtate (1700) – sgbrito (1900), net–chess.com, 2002.

4.Nc3 a5 5.b5 e6 6.Nf3 Bg4 7.Be2 Bf3 8.Bf3 Nd7 9.bc6 bc6 10.d4 Bb4 11.Bb2 c5 12.a3 Bc3 13.Bc3 cd4 14.Bd4 Ne7 (14...Rc8 15.Be2=) 15.c4+= 0–0 16.0–0 Qc7 17.cd5 ed5 18.Rc1 Qb8 19.Re1 Nf5? (better is 19...Re8+/–) 20.Bd5+– Re8 (20...Ra6 21.Qd3 Nd4 22.Qa6 Ne5+–) 21.e6 fe6 22.Re6 Kh8 23.Re8 Qe8 24.Ba8 Qa8 25.Bg7! Ng7 26.Qd7 Qe4 27.Rc8 Ne8 28.Re8 Qe8 29.Qe8 Kg7 30.Qe5 Kf7 31.a4 h6 32.Qa5 h5 33.Qd5 Kf6 34.a5 h4 35.a6 h3 36.a7 hg2 37.a8Q Ke7 38.Qad8 1–0. usingprogram (1665) – ravensdefense, kurnik, 2011.

4.Nc3 e6 5.Nf3 Bb4 6.a3 Bc5 (6...Bc3!? 7.dc3 Nd7–/+) 7.d4+= Be7 8.Bd3 Bd3 9.Qd3 c5 10.0–0 Nc6 11.dc5 Bc5 12.Rb1 b6 13.Na4 Be7 14.c4 Nh6 (better is 14...Rc8–/+) 15.Bh6+= gh6 16.Rfd1 0–0 17.cd5 Qd5? (better is 17...ed5 18.Nc3 d4+/–) 18.Qc2+– (18.Qd5?! ed5 19.Nc3 Rfd8=) 18...Qa5 (18...Ne5 19.Rd5 Nf3 20.gf3 ed5 21.Qc7+–) 19.Qc6 Ba3 20.Ra1 Bc5 (20...Rfc8 21.Qe4 Qb4 22.Nd4 Qa4 23.Qf3+–) 21.Rdb1 Rfd8 22.Qe4 Rd2 (22...Rab8+–) 23.Nc5 (23.Nc5 Rd5 24.Ra5 ba5 25.Nd7+–) 1–0. usingprogram – cheparin2, internet, 2011. (=1.e4 c6 2.b4 d5 3.e5)

4.Bd3 Bd3 5.cd3 e6 6.Qa4? Ne7 (better is 6...Qg5 7.Ne2 Qg2–+) 7.b5 (7.Nf3 Nd7–/+) 7...Ng6 (7...a6–/+) 8.bc6 (8.Nf3!?–/+) 8...Nc6–+ (8...bc6?! 9.Nf3=+) 9.Nc3 (better is 9.d4 Qg5 10.Kf1–+) 9...Nge5 10.Ke2 (10.Qb5 Qd7–+) 10...Be7 (10...Bc5 11.f4 Qh4 12.fe5 Qf2 13.Kd1 Qg2 14.Qb5–+) 11.Rb1 Rb8 (11...d4 12.Ne4 Rb8 13.Bb2–+) 12.Nf3 (12.d4 Nc4–+) 12...Nf3 13.gf3 (13...0–0 14.Bb2–+). bsjostedt – eduqueiroga, net–chess.com, 2006.

4.Bd3 Bd3–/+ 5.cd3 e6 6.Nc3 Bb4 7.Qg4 Bf8 8.Nf3 Ne7 (8...Nd7 9.0–0–/+) 9.Ba3 Nd7 10.0–0 c5 11.Rab1 b6 12.Qa4 (12.d4 Nc6–/+) 12...Ng6 (better is 12...d4!? 13.Ne2 Ng6–+) 13.d4+= Qc7 (13...cd4 14.Bf8 Rf8 15.Nb5+=) 14.dc5 Bc5 (14...bc5 15.d4 a6 16.dc5 Bc5 17.Nb5=) 15.d4 Ba3 (15...Be7 16.Be7 Qc3 17.Rfc1+=) 16.Qa3 Ne7? (better is 16...Qd8 17.Nb5 a6 18.Nd6 Kf8+=) 17.Nb5+– Qd8 (17...Qb8 18.Rbc1 a6 19.Nd6 Kf8 20.Ng5+–) 18.Nd6 (18.Na7? Nc8–+) 18...Kf8 19.Ng5 (19.Ng5 Ng6 20.Ngf7+–) 1–0. pierre – fink, internet, 2010. (=1.e4 c6 2.b4 d5 3.e5 Bf5)

4.Bd3 Bd3 5.cd3 e6 6.Qg4 Qb6 –/+.

4.Nf3 e6 5.Bb2 Bb4 6.a3 Ba5 7.Nc3 Ne7 8.Be2 0–0 9.0–0 c5 10.Nb5 Nc8 11.Bc3 a6 12.Ba5 Qa5 13.Nc3 d4 14.Na2 Nc6 15.Nc1 Qc7 16.Nd3 c4 17.Nf4 b5 18.a4 Nb6 19.ab5 ab5 20.g3 (20.d3 Ra1 21.Qa1 f6–+) 20...Na4 (20...Nd7!? 21.Ra8 Ra8 22.Nh4–+) 21.Re1 Rfd8 (21...Ne5?! 22.Ne5 Qe5 23.Bf3–/+) 22.Qc1 Nb4 (worse is 22...Ne5 23.Ne5 Qe5 24.Bf3–/+) 23.d3 cd3 24.cd3 Qc1 (24...Nc3 25.Ra8 Ra8 26.Nd4 Ne2 27.Nde2 Qe5 28.Nc3–+) 25.Rec1–/+ Nc3 26.Ra8 Ra8 27.Nd4 Ne2 28.Nfe2 Bd3 (28...Nd3!? 29.Rb1 b4–/+) 29.Nc3. usingprogram (1875) – danielstevens, kurnik, 2011. (=1.e4 c6 2.b4 d5 3.e5 Bf5)

4.Nf3 e6 5.Bb2 Bb4 6.a3 Ba5 7.Nc3 Ne7 8.Be2 Qc7 9.0–0 –/+.

4.Nf3 e6 5.Bb2 Bb4 6.a3 Ba5 7.Nc3 Ne7 8.Be2 d4 9.Na4+= b5 10.Nc5 0–0 11.Nb7 Qc7 12.Na5 Qa5 13.Nd4 Nd7 14.0–0 Rfd8 15.a4 b4 16.f4 a6 17.d3 c5 18.Nb3 Qb6 19.a5 Qa7 20.Rf2 c4 21.Bd4 Qc7 22.dc4 Nb8? (better is 22...Nc6!?+=) 23.Qe1+/– Bc2? (better is 23...Nd7 24.Qb4 Nc6+–) 24.Bb6+– (24.Bb6 Qc8 25.Bd8 Qd8 26.Bf3 (26.Qb4?! Nbc6 27.Qc3 Bb3 28.Qb3 Na5+–) 26...Bb3 27.Ba8 Bc4 28.Qb4+–) 1–0. usingprogram – danielstevens, internet, 2011. (=1.e4 c6 2.b4 d5 3.e5 Bf5)

4.Nf3 e6 5.Bb2 Bb4 6.a3 Ba5 7.Be2 Bc7 8.0–0 Nd7 9.d4 c5 10.Nc3 Ne7 11.Nb5 a6 12.Nd6 Bd6 13.ed6 Nc8 14.dc5 Nc5 15.Qd4 Qd6 16.Qg7 Rf8 17.Be5 Qe7 18.Bf6 Qd6 19.Rab1 (19.Be5 Qd7=) 19...Ne7 20.Ng5 Rg8?? (better is 20...Bc2 21.Be5 Qd8+=) 21.Be7+/– Ke7?? (better is 21...Rg7 22.Bd6 Rc8+/–) 22.Qf7+– Kd8 23.Qg8 Kc7 24.Qa8 1–0. usingprogram – andrew2496, internet, 2011. (=1.e4 c6 2.b4 d5 3.e5 Bf5)

4.h3 Nd7 5.d4 (5.Nf3 e6=+) 5...Qb6 (5...e6 6.c3–/+) 6.Ba3 (6.a3 a5=+) 6...g6 (6...e6!? 7.c3 Be7=+) 7.Nf3= Bg7 8.Ng5? (8.c4!?=) 8...f6 (8...Ne5 9.g4 Bc2 10.Qd2–+) 9.Nf3? (better is 9.g4!? Bc2 10.Qc2 fg5 11.Qc3–/+) 9...fe5–+ 10.c3 Be4 (10...0–0–0 11.Be2–+) 11.Be2? (11.Nbd2 ed4 12.cd4 Nh6–+) 11...Bf6 12.Nbd2–/+ ed4 13.Ne4 de4 14.Nd4 Bd4 15.cd4= Ngf6 16.0–0 a5 17.ba5 Ra5 18.Bc1 Rd5 19.Be3+/– c5 20.Qa4?? 0–0?? 21.Bc4+– Qb4?? 22.Bd5 Nd5 23.Qd7 Ne3 24.fe3 Rf1 25.Rf1 Qd2 26.Qe6 Kg7 27.Qe7 Kh6 28.Qe4 cd4 29.ed4 Qa2 30.Qe5 Qg8 31.Rf4 g5 32.Rf6 Kh5 33.Qf5 Qe8 34.Qg4# (34.Qh7#) 1–0. Abuloai – Mokolato, internet, 2006.

4.h3 e6 5.Ba3 –/+.

4.h3 e6 5.c3 a5 6.g4 (better is 6.b5!?=) 6...Be4–/+ 7.f3 Bb1 (7...ab4 8.fe4 Qh4 9.Ke2 de4 10.cb4 Bb4 11.Qc2+/–) 8.Rb1 ab4 9.cb4 (9.Qc2 Qa5–/+) 9...Ra2 (9...Qh4 10.Ke2 Nd7 11.Qe1–+) 10.Qb3–/+ Qh4 11.Ke2 (11.Kd1 Ra7–/+) 11...Ra8 12.f4 Na6 (12...h5 13.Nf3 Qd8 14.g5–/+) 13.Nf3 (13.d4 Qd8–/+) 13...Qd8 14.b5 Nc5 Black gets strong initiative 15.Qb2 Ne4 16.Rg1 (16.bc6 bc6 17.Qc2 Bc5–/+) 16...Bc5 17.d4 (17.bc6 bc6 (17...Bg1?! 18.cb7 Rb8 19.Qb5 Kf8 20.Ng1=+) 18.Rg2 Ne7–+) 17...Ba3 (better is 17...Ra2! 18.Qa2 Nc3 19.Ke3 Na2 20.dc5 Qe7–+) 18.Qb3–/+ Qa5 (18...Bc1 19.Rc1 Qb6 20.Ke1–/+) 19.Ba3?? (19.Ra1 Nc3 20.Kd3 Nb5 21.Kc2 Bc1 22.Ra5 Ra5 23.Qb4+– (23.Kc1 Ra3 24.Qb4 Rf3+/–)) 19...Nc3–+ (19...Qa3?! 20.Rb2–/+) 20.Kf2 (20.Kd3!? Nb1 21.Bb4–+) 20...Nb1 (20...Qa3?! 21.Qa3 Ra3 22.bc6 Nb1 23.Bb5 bc6 24.Bc6 Kd8 25.Rb1–/+) 21.Bb4 Qa2 22.Qa2 Ra2 23.Kg3 Rb2 24.Bd6 Nc3 25.bc6 Ne4 26.Kh4 h6 (better is 26...bc6 27.Bd3 h5–+) 27.c7?? (27.f5 bc6 28.Rg2 Rg2 29.Bg2 g5 30.fg6 fg6 31.Ne1 g5 32.Kh5 Nd6 33.h4–+) 27...g5 (27...Nd6 28.ed6 Ne7 29.de7=+) 28.Kh5 Ngf6! 29.ef6 Nf6# (29...Nd6?! 30.fg5 hg5 31.Kg5–+) 0–1. gtx1000 – AburameShino, internet, 2007.

4.h3 e6 5.c3 d4 =+.

4.d4 e6

5.Ba3 Be7 6.Bd3 Nh6 7.Nf3 Nd7 8.Nbd2 (8.0–0!?=) 8...Bd3–/+ 9.cd3 Nf5 10.Nb3 0–0 11.Nc5 (11.0–0 a5 12.Qd2 b6+=) 11...b6 (11...Nd4!? 12.Nd4 Bc5–/+) 12.Nd7+= Qd7 13.Qa4 f6 14.Rc1 Rac8 15.0–0 Rf7 16.Rc3 Qb7 17.Rfc1 b5 18.Qc2 Bd8 (18...Qa6!?=) 19.Rc6+= Rfc7 20.Rc7 Rc7 21.Qe2 Rc6 22.Rc5 a6 23.Qc2 Rc7 24.Bc1 Kf7 25.Bf4 Rd7 26.a4 Be7 27.Rc8 Bb4 28.ef6 gf6? 29.Bh6 Nh6–+ 30.Rh8 Kg7 31.Qc8 Qc8 32.Rc8 ba4 33.Re8 Rc7 34.g3 Rc6 35.Nh4 a3 36.Rb8 a2 37.Rb4 a1Q 38.Kg2 Nf5 39.Nf3 Rc2 40.g4 Ne3 41.Kg3 Ng4! 42.Kg4 Rf2 43.Nh4 Rh2 44.Rb7–+ Kh6 45.Rf7 Qd4 46.Kg3 Qf2 47.Kg4 Rh4# 0–1. Bayer,Marius (2000) – Biggel,M (2000), remoteschach.de, 2007. (=1.e4 c6 2.b4 d5 3.e5)

5.c3 Nd7 6.Nf3 a5 7.b5 c5 8.Be2 cd4 9.cd4 f6 10.0–0 fe5 11.de5 Bc5 12.Nc3 Rc8 13.Nd4 (13.Na4 Bb4 14.a3 Bc2+=) 13...Bd4 14.Qd4 Ne7 15.Bb2 (15.Bh5 Ng6+=) 15...0–0 16.g4 Bg6 17.Ba3 Qb6 (better is 17...b6=) 18.Qb6+/– (18.Be7?? Qd4 19.Bf8 Nf8 20.Nd5 ed5–+) 18...Nb6 19.Be7 Rf7 20.Nd5 Nd5 21.Bg5 Nc3 22.Rfe1 Ne2 (22...Rc5 23.Rac1+=) 23.Re2 Bd3 24.Rb2 Rc5 25.Be3 Re5 26.b6 Rd5 27.Rd2 e5 28.Rc1 Rfd7 29.Rc7 Kf7 30.f4 e4 31.Rd1 g6 32.a4 Ke6 33.Rdc1 Be2 34.h3 h5 35.gh5 Bh5 36.R1c4 Bf3 37.Kf2 Bh1 38.Rc1 Bf3 39.Rg1 Kf6 40.Bc1 Bd1 41.Rg5 Ba4 42.Bb2 Ke6 43.Rg6 Kf7 44.Rf6 Ke7 45.Ke3 Bc6 46.f5 (46.Rfc6 bc6 47.Ke4 Rc7 48.bc7 Kd7–/+) 46...Rd3= 47.Kf4 Rf3 (47...Rh3? 48.Re6 Kf8 49.Rec6 bc6 50.Rd7+–) 48.Ke5 Rh3 49.Rd6 Ke8 50.Rdc6?? (50...bc6 51.Rc8 Rd8 52.Rd8 Kd8 53.Ke4–/+; better is 50.Rdd7 Bd7 51.Rb7+/–) 1–0. Taulien,Hans_Juergen – Luehrig,Walter, RSM2002 remoteschach.de, 2002.

5.Bd2 Qb6 6.c3 a5 7.Qa4 Qc7 8.Nf3 b5 9.Qd1 a4 10.Nh4 Bg6 (10...Be4!?=) 11.Ng6+= hg6 12.Na3 Qb6 13.Qf3 Ne7 14.0–0–0 Na6 15.Nc2 Nc8 16.Bd3 Be7 17.a3 Qc7 18.h4 (18.Be3 Rh7+/–) 18...Nb6 (18...Rh4 19.Rh4 Bh4 20.Rh1+–) 19.h5 g5 (19...Rh5 20.Rh5 gh5 21.Qh5+/–) 20.Qg4+/– Qd8 21.f4 gf4 22.Qg7 (22.Bf4?! Bf8+/–; 22.Qf4?! Nc4+=) 22...Kd7 23.Qf7 Qc7 (23...Rf8 24.Qg6+–) 24.Qf4 (24.Bf4?! Rhf8 25.Qg7 Rf4=) 24...Raf8 25.Qg4 Rhg8 26.Bg6 Nc4 27.Bh6 Rf2 28.Rdf1 Rc2 29.Kc2 Na3 30.Kb2 Nc4 31.Kb1 a3 32.Rf7 a2 (32...Rh8 33.Bg5 Re8 34.Rg7+–) 33.Ka1 (33.Ka2 Ra8 34.Kb1 Na3 35.Kc1 Nc4+–) 33...Ne5 (33...Rh8 34.Bg5 Re8 35.Qh4 Ne5 36.de5 (36.Be7?! Nf7 37.Rf1 Re7 38.Qe7 Ke7 39.Rf7 Kd6 40.Rc7 Nc7+–) 36...Qe5 37.Be7 Qc3 38.Ka2+–) 34.de5 Qe5 35.Qf3 Nb4 36.Re7! (36…Ke7 37.Qf7 Kd6 38.Bf8 Rf8 39.Qf8 Kd7 40.Qe8 Kc7 41.Qe7 Kb6 42.Qb4+–) 1–0. Taulien,Hans_Juergen – Jenull,Marco, remoteschach.de, 2002.

5.c3 a5

6.ba5 Qa5 7.Nf3 =.

6.ba5 Nd7 7.Bd3 Bd3 8.Qd3 Qa5 9.Ne2 Ne7 10.0–0 Ng6 11.f4 Qb6 12.Be3 Be7 13.Nd2 Nh4 14.g4 (14.Ng3 Qa6 15.Qc2 b5=) 14...0–0 15.f5 ef5 16.gf5 Qa6 17.c4 (17.Nc1 b5=) 17...Rfe8 18.Ng3 (better is 18.Nf4!?=) 18...Nb6–/+ 19.f6 gf6 (19...dc4 20.Qe4 Bf6 21.Rf6 gf6 22.Qh4+=) 20.Nf5 Nf5 21.Qf5 Nc4 (21...dc4 22.Ne4 Qb5 23.Rab1+–) 22.Bh6 Kh8 23.ef6 Bf8 24.Bg7! Bg7 25.fg7 Kg7 26.Qf7 Kh8 27.Qf6 Kg8 28.Kh1 Ne5 29.de5 (29.Rg1 Ng6 30.Rg6 hg6 31.Qg6 Kh8 32.Rg1 Re7 33.Qf6 Kh7 34.Qh4) 29...Qd3 30.Rg1 Qg6 31.Rg6 hg6 32.Qg6 Kh8 33.Qh6 Kg8 34.Rg1 Kf7 35.Qf6# 1–0. Labahn,Wolfgang – Psion, 4', 1990.

6.ba5 Nd7 7.Bd3 Bd3 8.Qd3 Qa5 9.Ne2 (9.Nf3 Qa6 10.Qc2 Ne7=) 9...Ne7 10.0–0 (10.Nd2 c5=) 10...Ng6 (10...c5 11.Nd2=) 11.f4 Qb6 (11...Ne7 12.Ng3=) 12.Be3 (12.Nd2 Be7=) 12...Be7 (12...Ne7 13.Nd2+=) 13.g4 (13.f5 ef5 14.Qf5 Nde5+=) 13...c5 (13...Nh4 14.f5+=) 14.Nd2 (14.f5 c4 15.Qd2 Nh4+=) 14...0–0 (14...c4 15.Qb1=) 15.Ng3 (15.f5 Nh4=) 15...Qc6 16.f5 c4 (16...Nh4 17.g5 ef5 18.Nf5 Nf5 19.Qf5+=) 17.Qe2 (17.Qb1 Nh4=) 17...Nh4 18.Nf3 (18.Nh5 Ra3+=) 18...Nf3 (18...Ra3 19.Nh4 Bh4 20.fe6 fe6 21.Rf8 Nf8 22.Qb2+=) 19.Rf3 Qb6 (19...f6 20.ef6 Bf6 21.g5+=) 20.g5= g6 (20...ef5 21.Nf5 Rfe8 22.Rf2=) 21.f6 Bd8 22.Qg2 Bc7 23.Qh3+= Qb2?? 24.Raf1 Ra2?? 25.Bf2 Ra1?? 26.Be1 Kh8 27.Nh1?? Bb6?? 28.Qh6 Bd4 29.cd4 Qd4 30.Nf2 Nf6 31.ef6 Qf2 32.Bf2 Rf1 33.Kf1 Rg8 34.Qh7! Kh7 35.Rh3# 1–0. Labahn,Wolfgang – PsionChess, Paderborn, 1990.

6.ba5 Nd7 7.Nf3 Qa5 8.Bd3 Bd3 9.Qd3 c5 =.

6.b5 a4 7.Ba3 Ba3 8.Na3 Ne7 9.Nf3 0–0 10.Be2 Nd7 11.0–0 Ng6 12.Qd2 f6 13.ef6 Qf6 14.Nc2 (14.bc6 bc6 15.Rae1 Be4–/+) 14...Be4=+ 15.Nfe1 (15.bc6 bc6 16.Ne3 Nf4–/+) 15...Nf4–/+ 16.f3 Qh6 (16...Bc2 17.Qc2 c5 18.Rd1–/+) 17.Rd1 Bc2 18.Nc2 e5 19.g3 White gets the initiative 19...Qg6 Black prepares e4 20.Kh1 (20.Bd3 Nd3 21.Qd3 Qh5=+) 20...Ne2–/+ 21.Qe2 Rae8 Black intends e4 22.bc6 bc6 23.Qd3 e4 (23...Qd3 24.Rd3 e4 25.Re3=+) 24.fe4=+ Rf1 25.Rf1 Nf6 26.Nb4 Ng4 (better is 26...Ne4 27.a3 Qh6=+) 27.e5+/– Qh5 (27...Qh6 28.Qe2 Ne3 29.Rf4+/–) 28.Qe2 Re6 (28...Qg6 29.Rf4 h5 30.a3+/–) 29.Rf4 Nf6 30.Qh5 Nh5 31.Rf2 g6 32.Nd3 Re7 33.Rb2 Kf7 34.Rb6 Rc7 35.Ra6 Ng7 36.Ra4 Ne6 37.Ra6 c5 38.Re6 Ke6 39.Nc5 Ke7 40.a4 Ra7 41.Kg2 Ra8 42.Kf2 Rb8 43.a5 Rb2 44.Ke3 Rh2 45.a6 Rg2 46.Kf4 Rc2 47.Na4 Ra2+= 48.Nc5 Ra3 49.Kg5 Rc3+= 50.g4 Kf7 51.e6+/– Ke7 52.Kh6 Rh3 53.Kg5 Kd6 54.Kf6+– Rf3 55.Kg5?? Rf2 56.Kh6+– Rh2 57.Kg5?? h5 58.gh5 gh5 59.Na4 Ra2 60.Nc5 Ke7 61.Kh5+– Kf6 62.Kg4 Rh2 63.Kf4 Rh7?? 64.Nd7+– Ke7 65.a7 Rh8 66.Nb8 Rf8 67.Ke5 Rb8 68.ab8N (68...Ke8 69.Kd6+–; 68.ab8R?!=; 68.ab8Q?!=) 1–0. Labahn,Wolfgang – Wehmeier,S (2400), Paderborn, 1990.

6.b5 a4 7.Bd3 Bd3 8.Qd3 Nd7 9.f4 (9.bc6 bc6 10.Nf3 c5=) 9...g6 (9...cb5 10.Qb5 Qc7 11.Nf3+=) 10.Nf3 h5 (10...cb5 11.Qb5 Qb6 12.Na3=) 11.0–0 Nh6 12.Be3 (12.bc6 bc6 13.c4 Nf5+=) 12...Nf5 (12...cb5 13.Qb5 Nf5 14.Re1=) 13.Bf2 (13.bc6 bc6 14.Nbd2 Nb6+=) 13...c5 14.Nbd2 (14.c4 dc4 15.Qc4 Nb6=) 14...c4 15.Qc2 Qb6 16.Rab1 a3 17.g3 (17.Nh4!?=) 17...Be7 18.h3 Ra5 19.Kg2 Nh6 (19...0–0 20.Rfe1–/+) 20.Nh2 (20.Rfd1 0–0+=) 20...0–0–/+ 21.g4 hg4 22.hg4 Rb5 23.Rb5 Qb5 24.Be3 f5?? (better is 24...Kg7–/+) 25.ef6+= Rf6 26.Rb1 (26.Qb1 Qb1 27.Rb1 Rf7+=) 26...Qc6= 27.Ndf1 Nf7 28.g5 Rf5 29.Ng3 Nd6 30.Nf5 ef5 31.Nf3 Ne4 32.Nd2 Nb6 33.Ne4 de4 34.Kf2 ½–½. Labahn,Dieter (2040) – Wobbe,Sven (2210), Wichern op 5th, 1999. (=1.e4 c6 2.d4 d5 3.e5 Bf5 4.b4 e6 5.c3 a5)

6.b5 Qb6 7.a4 c5 8.Nf3 Nd7 9.Be2 Rc8 10.0–0 Ne7 11.Be3 Ng6 12.Nbd2 Be7 13.h3 Nh4 14.Nh4 Bh4 15.f4 h5 16.Bh5 c4 17.Bg4 Bd3 18.Be2 Qd8 19.Bd3 cd3 20.Nb1 Nb6 21.Qd3 g6 22.Nd2 Bg3 23.Rf3 Bh4 24.Bf2 Be7 25.g4 Kd7 26.Nb3 Nc4 27.Qe2 b6 28.Kg2 Qg8 29.Nd2 Qg7 30.Nf1 1–0. Hernandez Agamez,Hugo – Gomez,Jorge Leonardo (1910), Bogota COL, McGregor Open, 2011.

6.b5 Qb6 7.Qa4 =.

6.b5 Nd7 7.Nf3 Ne7 8.a4 (8.Nh4 Qc7=) 8...Ng6 9.h4 Bg4 10.g3 (10.h5 Nh4=) 10...c5 (10...Ne7 11.h5=) 11.Bg2 (11.h5 Ne7=) 11...Bh5 12.Ba3 (12.Bh3 Bf3 13.Qf3 cd4 14.cd4 Qb6=) 12...Nb6 (12...Rc8 13.0–0+=) 13.Bh3 (13.Nbd2 Rc8+=) 13...Bf3+= 14.Qf3 cd4 15.Bf8 Rf8 (15...Nf8 16.cd4 Rc8 17.Nd2+=) 16.cd4 Qc7 (16...Qe7 17.Ke2=) 17.Qc3 Rc8 18.Qc7 Rc7 19.Nd2 Rc3 20.Ke2 (20.Bg4 Ne7=) 20...Kd7 21.h5 Ne7 22.Rhb1 Rc2 23.Kd1 Rfc8 24.Bf1 Nf5 25.Bd3 R2c3 26.Bf5 ef5 27.Ke2 Rc2 28.Ke1 Nc4 29.Nf3 f6 30.ef6 gf6 31.Kf1 Rc3 32.Kg2 Na3 33.Rh1 R8c4 34.Ra2 Ra4 35.Rha1 Kc7 36.Re1 Kb6 37.Re7 Rac4 38.Rh7 Nb5 39.Rf7 Rc6 40.h6+= Re6 41.Nh4 f4 42.h7+/– Rc8 43.Ng6 f3 44.Kf3 Nd4 45.Kg4 f5 46.Kg5 Nf3 47.Kf5 Rg6 48.Kg6 Ne5 49.Kg7 Nf7 50.Kf7 Rc7 51.Kg6 Rc6 52.Kg5 Rc8 53.f4 d4 54.Rb2 Ka6 55.Rh2 Rh8 56.Kg6 a4 57.Kg7 Rc8 58.h8Q (58.h8Q Rc3 59.Qa8 Kb5 60.Rh5 Kb4 61.Qb7 Ka3 62.Qe7 Kb2 63.Qb4 Kc1 64.Rh2 a3 65.Qd4 Rc7 66.Kf6 Rc6 67.Ke5 Kb1 68.Qb4 Ka1 69.Qa3 Kb1 70.Qb2) 1–0. Naeter,Burkhard (2055) – Montalvo,Juan, IECC, 2000. (=1.e4 c6 2.d4 d5 3.e5 Bf5 4.b4 e6 5.c3 a5)

6.b5 c5

7.Ba3 Qb6 8.Nf3 Bg4 9.Qa4 Bf3 10.gf3 Nd7 11.Be2 Nh6 12.Bb2 cd4 13.cd4 Bb4 14.Kf1 0–0 15.a3 Be7 16.Qd1 Bh4 17.Nc3 f6 18.ef6 Rf6 (18...Bf6!? 19.Na4 Qd6 20.Bd3–+) 19.Na4–/+ Qd6 20.Rc1 Ng4 (20...Bg5!? 21.Rc2 Bf4–/+) 21.fg4+= Qf4 22.Bf3 Qf3 23.Qf3 Rf3 24.Kg2 Rf2 25.Kh3 Bg5 26.Rc3 (26.Rhf1 Rf1 27.Rf1 Rc8–+) 26...Nf6 27.Bc1 Ne4 28.Nb6? (better is 28.Rb3–+) 28...Raf8 29.Rd3 (29.Rc8 Rc8 30.Nc8 Bf6–+) 29...Rc2 30.Bg5 Nf2 31.Kg3 Nh1 (31...Nh1 32.Kh4 h6–+; worse is 31...Nd3 32.Nd7 Rf7 33.Ne5 Ne5 34.de5 Rc3 35.Kg2 Ra3 36.Rc1–+) 0–1. Holzer,Gerhard (2240) – Fusi,Christoph (2250), AUT–chT2O, 2000. (=1.e4 c6 2.d4 d5 3.e5 Bf5 4.c3 e6 5.b4 a5 6.b5 c5)

7.a4 cd4 8.cd4 Nd7 9.Ba3 Ba3 10.Ra3 Bb1 (10...Rc8 11.Bd3=) 11.Qb1 Rc8 (11...Ne7 12.Bd3=) 12.f4 (12.Rg3 g6=) 12...Qe7 (12...Nb6 13.Nf3=) 13.Ra1 Nb6 14.Nf3 Qc7 (14...Nh6 15.Qb2=) 15.Qd3 (15.Bd3 Qc3 16.Ke2 Ne7=) 15...Ne7 16.Be2 0–0 17.0–0 Qc2 18.Ne1 Qc3 19.Ra3 (19.Qc3 Rc3 20.Rf3 Rc7=) 19...Qc1 (19...Qb4 20.Bd1+=) 20.g4 (20.Ra2 Qc4 21.Qd2 Qc3 22.Qc3 Rc3=) 20...Rc4+= 21.Ra2 Ra4 22.Rc2 Qa1 23.Nf3 Qa3 24.Rc3 (24.Rc7 Ng6 25.f5 Nf4+=) 24...Qb2 25.Ng5 Ng6 26.f5 ef5 27.gf5 Nh4 28.f6 g6 29.Nf7 Ra2 30.Nh6 Kh8 31.Re1 Ra1 32.Ra1 Qa1 33.Kf2 Nd7 34.Ng4 1–0. Naeter,Burkhard (2030) – Ampiainen,Jesper (1985), IECC, 1999. (=1.e4 c6 2.d4 d5 3.e5 Bf5 4.b4 e6 5.c3 a5)

7.a4 Nd7 8.Be3 Rc8 (8...cd4 9.cd4 Rc8 10.Nd2–/+) 9.Bd3 (9.Nf3 cd4 10.Nd4 Bb1 11.Qb1 Ne5–/+) 9...cd4–/+ 10.cd4 (10.Bd4 Bd3 11.Qd3 Qg5–/+) 10...Bb4–+ 11.Ke2 (11.Kf1 Ne7–/+) 11...Ne7 12.f4 (12.Kf1 0–0 13.Nf3 Be4–+) 12...Nb6 (12...0–0 13.Nf3 f6 14.g3–+) 13.Bd2 (13.Nf3 Nc4 14.Bc1 Be4–+) 13...Bd3 14.Kd3 Qc7 (14...Nf5!? 15.Nf3–+) 15.Bb4 (15.Nf3 Nc4 16.Ke2 0–0 17.Bb4 ab4–+) 15...Qc4 (15...ab4!? 16.Nf3 Nc4 17.Qb3–+) 16.Ke3 Nf5 17.Kf2 Qb4 18.Ne2 Nc4 19.Qd3 Nb2 20.Qa3 (20.Qd2 Rc4–+) 20...Rc4 (20...Rc2 21.Qb4 ab4 22.Kf3–+) 21.Nbc3 (21.Qb4!? Rb4 22.Nd2–+) 21...Nd4 22.Rhb1? (22.Nd4 Rd4 (22...Qc3?! 23.Qc3 Rc3 24.Ke2–+; 22...Rc3?! 23.Qb4 Nd3 24.Ke3 Nb4 25.Ke2–+) 23.Qb4 Rb4–+) 22...Qa3 (better is 22...Nd3!? 23.Ke3 Ne2 24.Qb4 Nb4 25.Ne2 Nc2 26.Kd3 Na1 27.Ra1–+) 23.Ra3 Nd3 (23...Nc2 24.Ra2 Nd3 25.Kg3 Nf4 26.Rc1 Ne2 27.Ne2–+) 24.Kf1? (better is 24.Ke3 Ne2 25.Ne2–+) 24...Nc2–+ 25.Ra2 Ndb4 26.Rab2 Kd7 27.g3 (27.Rb3 d4 28.Ne4 d3–+) 27...Rd8 (27...Rhc8 28.Rb3 d4 29.Nd1–+) 28.Kg1 (28.b6 Rdc8 29.Rb3 Na6–+) 28...d4 (28...Rdc8 29.Nd1–+) 29.Nd1 (29.Ne4 d3 30.Nd6 de2 31.Nc4 Kc7 32.b6 Kb8–+) 29...d3 (29...Rdc8 30.Kf1–+) 30.Nec3 (30.Nc1 Na3 31.Ra1 Nbc2–+) 30...Rdc8 31.Kf2 (31.Na2 Nd5 32.Rb3 Ra4–+) 31...Rc3 32.Nc3 Rc3 33.Rb3 (33.Rd1 Ra3–+) 33...Nd5 34.h4 (34.R3b2 Ra3 35.Rd1 Ncb4–+) 34...Kc7 (34...Na3!? 35.Ra3 Ra3 36.Rb2–+) 35.b6 (35.R3b2 Ra3 36.Rb3 Ra2–+) 35...Kc6 36.h5 (36.R3b2 Ncb4 37.Ra1 Nb6–+) 36...Ncb4 (better is 36...d2 37.R3b2 Nde3 38.Ke2–+) 37.Rc3 (37.Kf3 Rc2–+) 37...Nc3 38.Rb3 Nbd5 39.Ke1 Kc5 40.h6 (40.Rb2 Na4 41.Ra2 Ndc3–+) 40...gh6 0–1. Coelho,CL Lima – Moura,PJ Alves B (2000), Praia da Pipa BRA, American Continental, 2014. (=1.e4 c6 2.d4 d5 3.e5 Bf5 4.b4 e6 5.c3 a5 6.b5 c5)

7.Bd3 Bd3 8.Qd3 c4 9.Qc2 b6 10.a4 Nd7 11.Ba3 (11.Nf3 Qc7=) 11...Ba3 12.Na3 Qg5 13.g3 0–0–0 14.f4 Qe7 15.Nf3 h5 16.Qg2 Kb8 17.Nc2 g6 18.Ne3 Nh6 19.Kd2 ½–½. Benend,Andreas (2210) – Homola,Uwe, Verbandsliga Nord Baden, 2008. (=1.e4 c6 2.d4 d5 3.e5 Bf5 4.b4 e6 5.c3 a5 6.b5 c5)

7.Bd3 Bd3 8.Qd3 c4 9.Qf3 =.

7.Bd3 Bd3 8.Qd3 cd4 9.cd4 Nd7 10.Ne2 (10.Nf3 Rc8 11.0–0 Bb4=) 10...Ne7 11.0–0 g6 (11...Rc8 12.Be3=) 12.f4 (12.Be3 Nf5+=) 12...h5 (12...Nf5 13.Ba3=) 13.Nd2 Rc8 (13...Nf5 14.Ba3+=) 14.Ba3 Nf5 (14...h4 15.Rac1+=) 15.Rac1 (15.Bf8 Rf8 16.Rac1 Rc1 17.Rc1 h4+/–) 15...Be7 (15...Rc1 16.Rc1 (< 16.Nc1 Ba3 17.Qa3 Nd4–/+; 16.Bc1?! Bb4+=) 16...Bg7 17.Ng3+=) 16.b6 (16.Be7 Ne7 17.Rc8 Qc8+/–) 16...Nb8 (16...Rc1!? 17.Rc1 Qb6 18.Rc8 Bd8=) 17.Be7 (17.Rc8 Qc8 18.Rc1 Nc6+/–) 17...Ne7+= 18.Qb5 Nbc6 (18...Nd7!?+/–) 19.Nb3 0–0 20.Nc5 Rb8 21.Rfd1 Kg7 22.a3 h4 23.Rc3 Rh8 24.Nc1 g5 25.fg5 Nf5 26.g6 Kg6 27.Ne2+– Qg5 28.Rf3 Rhg8 29.Nd7 Kh6 30.g3 Rbc8 31.Qd3 Rg6+= 32.Nf6 hg3?? 33.hg3 Kg7 34.Kf2 Rh8 35.Rf5= ef5 36.Rg1 Rh2 37.Rg2 Rg2 38.Kg2 Rf6 39.ef6 Qf6 40.Nf4 Qd4 41.Qd4 ½–½. Labahn,Wolfgang (2215) – Jaeger,Manfred, Dortmund op–A, 1993.

7.Bd3 Bg6 8.a4 Qb6 9.Bg6 hg6 10.Ba3 Nd7 11.Ne2 Nh6 12.0–0 Nf5 13.g4 Nh4 14.Qd3 Rc8 15.Nd2 g5 16.Nf3 Be7 17.Nh4 Rh4 18.h3 Qc7 19.Kg2 Nb6 20.Bc1 cd4 21.cd4 Qc2 22.Qc2 Rc2 23.Ng1 Rh8 24.Nf3 Nc4 25.Re1 Bb4 26.Rh1 f6 27.ef6 gf6 28.Rd1 Bc3 29.Rb1 Ra2 30.Rb3 Bb4 31.Ne1 Be1 32.Re1 Kd7 33.Kg3 Ra4 34.f4 gf4 35.Bf4 Ra3 36.Ra3 Na3 37.b6 Nc4 38.Bc7 a4 39.h4 a3 40.Ra1 Kc6 41.g5 fg5 42.hg5 Kb5 43.Kg4 Ka4 44.g6 Ne3 45.Kg5 Nf5 46.Kf6 Nd4 47.Be5 Nc2 48.g7+= Rc8 49.Rh1 Rg8 50.Kf7 Rg7 51.Bg7 d4 52.Rd1 a2 53.Bd4 Nd4 54.Rd4 Kb3 55.Rd1 e5 56.Ke6 e4 57.Kd5 e3 58.Re1 Kb2 59.Re2 Kb1 60.Re3 (60.Re3 Kb2 61.Re2 Kb3 62.Ra2 Ka2 63.Kd6+–) 1–0. Rodriguez Garcia,JA – Rodriguez Uria,JA (2225), Asturias–chT, 1993. (=1.e4 c6 2.d4 d5 3.e5 Bf5 4.c3 e6 5.b4 a5)

7.Bd3 Bg6 8.Ne2 Nd7 (8...Bd3 9.Qd3 c4 10.Qg3=) 9.0–0 Ne7 (9...Qh4 10.Bf4=) 10.f4 (10.Bg5 f6 11.ef6 gf6=) 10...Qb6 11.Kh1 (better is 11.Na3!?=) 11...Bd3–/+ 12.Qd3 c4 13.Qh3 (13.Qc2 Qb5 14.Na3 Qc6–/+) 13...Qb5 14.g4 (14.Ng3 a4–/+) 14...g6 (14...Qc6 15.f5–/+) 15.Ng3 White plans f5 (15.Nd2 h5–/+) 15...Qc6 (15...a4 16.Nd2–/+) 16.Nd2 (16.f5 gf5 17.gf5 b5–/+) 16...0–0–0 (16...b5 17.a3–/+) 17.Nf3 (17.Rb1 Qa4=+) 17...Bg7 (17...Qb6 18.Be3 Qb2 19.Ng5=) 18.f5 (18.Ba3 Rhe8=) 18...gf5= 19.gf5 Nf5 20.Nf5 ef5 21.Qf5 Kb8 22.Qf7+/– Rhg8 23.e6+– Nb6 24.e7 Rde8+/– 25.Ng5 Qd7= 26.Ba3 Bh6 27.Ne6 Nc8 28.Rf6 Qa4?? 29.Nc5+– Qa3 30.Rb1 The mate threat is Rxb7 30...b6 31.Qd5 Threatening mate: Qb7 31...Re7 32.Rfb6! Nb6 A pinning theme 33.Rb6 Decoy to b6 33...Kc7 34.Rb7 (34...Kc8 35.Qc6 Kd8 36.Rb8#; 34.Qb7 Kd8 35.Qb8#) 1–0. Labahn,Wolfgang (2215) – Kleff,Andre, Dortmund op–A, 1993.

7.Bd3 Bg6 8.Nf3 Bd3 9.Qd3 c4 =.

7.Nf3 Nd7 =.

2.e4 e5

3.a3 a5 4.Bb2 (4.d4 Qe7=) 4...ab4 (4...d5 5.ed5 cd5 6.Be5=) 5.ab4 (5.Be5 Qe7 6.ab4 Ra1 7.Ba1 Qe4 8.Qe2 d5=) 5...Ra1 6.Ba1 d6 (6...Qe7 7.Nf3=) 7.c3 (7.d4!?=) 7...Nf6 8.d3 (8.Qe2 Be7=+) 8...g6 (8...d5 9.Nd2=+) 9.Nf3 Bg7 (9...Nbd7 10.Nbd2=) 10.Qa4 (10.Be2 0–0=) 10...0–0 11.Qa7 (11.Qc2 Bg4=) 11...Nbd7 12.Nbd2 Qb6 (12...d5 13.c4=+) 13.Qb6 (13.Qa5 Qd8=) 13...Nb6 14.d4 (14.Be2!?=) 14...ed4=+ 15.cd4 (15.Bd3 dc3 16.Bc3 Re8–/+) 15...Re8–/+ 16.e5 Bg4 (16...de5 17.de5 Bg4 18.Bd3–/+) 17.Be2 (17.h3 Bf3 18.Nf3 Nfd7–/+) 17...de5 18.Ne5 (18.de5 Nfd7–/+) 18...Be2–+ 19.Ke2 Nfd5 20.Rd1? (better is 20.Kf3–+) 20...f6 (20...Nb4?! 21.Kf3–+) 21.Kf1 (21.Ndf3 fe5 22.de5 Nc4–+) 21...fe5 22.Re1 (22.de5 Nb4 (22...Be5?! 23.Re1–+) 23.Bc3 N4d5–+) 22...Bh6 (22...Nb4 23.de5 N6d5 24.Nf3–+) 23.Nf3 (23.Ne4 ed4 24.Bd4 Nc4–+) 23...e4 24.Ne5 e3 (24...Ra8 25.Rb1–+) 25.f3 (25.Ng4 Kg7–+) 25...Nb4 26.Rb1 (26.Ng4 Bg5 27.h4 Bh4 28.Re3 Ra8–+) 26...N6d5 27.Bb2 (27.g3 Ra8 28.Ng4 Bg7–+) 27...c5 (better is 27...Nf4 28.Re1 Nc2 29.Re2 Ne2 30.Ke2–+) 28.dc5 (28.g3 cd4 29.Bd4 e2 30.Kf2 g5 31.Ke2 Nc6–+) 28...Bg7 (better is 28...Bf4 29.Ba3 Re5–+) 29.Ng4 (29.g3 Be5 30.Be5 Re5 31.Re1–+) 29...e2 30.Kf2 Nd3 31.Kg3 Nb2 32.Kf2 Bc3 (33.Nh6 Kg7–+; 32...Nd1 33.Rd1 ed1Q 34.Kg3 Qe1 35.Nf2 Qe5 36.f4 Qe3 37.Kg4 h5 38.Kg5 Re5 39.Kg6 Nf4#) 0–1. tomnrw – nordlicht, mySchach.de, 2003.

3.a3 d6 A) 4.Nf3 f5 (4...Nf6 5.Nc3 Be7 6.d4 Nbd7=; 4...Be7 5.d4 ed4 6.Nd4 Nf6=; 4...a5 5.b5 Nf6 6.Nc3 d5=; 4...Bg4 5.h3 Bh5 6.Nc3 Nf6=) 5.ef5 Bf5 6.Bc4 d5=; B) 4.d4 ed4 5.Qd4 Be7 6.Nc3 Bf6=; C) 4.Nc3 f5 (4...Nd7 5.Nf3 Ne7 6.d4 Ng6+=; 4...Nf6 5.Nf3 Be7 6.d4 ed4=; 4...Be7 5.Nf3 Bg4 6.h3 Bh5=; 4...a5 5.b5 Nf6 6.d4 ed4=) 5.d4 Nf6 6.Bg5 Qe7=.

3.Ba3 Ne7 4.d4 d5 5.f3 (5.de5 Qc7 6.Qd4 de4=) 5...Nd7 6.c3 b6 7.Bd3 Bb7 8.Ne2 Qc8 9.Nd2 a6 10.0–0 Ng6 11.Bb2 (11.f4 ed4 12.cd4 de4 13.Ne4 Qc7+/–) 11...Be7 12.Qb3 Qc7 13.c4 Nf4 (better is 13...Qd6 14.c5 Qc7+=) 14.de5 (14.Nf4!? ef4 15.ed5 cd5 16.Rfe1+/–) 14...Bg5 (14...Bb4!? 15.Nf4 Bd2+=) 15.Qc2 (15.Nf4 Bf4 16.Rad1 Ne5 17.ed5 Bh2 18.Kh1 Qd6=) 15...Ne2 16.Be2 Be3 17.Kh1 Bg5? (better is 17...d4 18.c5 bc5 19.bc5 Ne5+/–) 18.f4 (18.cd5 Bf4+–) 18...Be7 19.a3 (better is 19.cd5 Bb4 20.Nb3+–) 19...a5? (better is 19...de4 20.Ne4 c5+–) 20.c5 a4? (20...bc5 21.Nb3) 21.f5 (better is 21.e6 fe6 22.cb6 (worse is 22.Bg7 Rg8 23.Bh5 Kd8 24.cb6 Qb6+–) 22...Nb6 23.Bg7+–) 21...Nf8?? (better is 21...bc5 22.e6 Ne5+/–) 22.cb6 (better is 22.f6 gf6 23.ef6 Bc5 24.bc5 bc5 25.Qc5 Ne6+–) 22...Qb6 23.f6 Bd8 (23...gf6 24.ef6 Bd6+–) 24.fg7 Ng6 (24...Rg8 25.ed5 cd5+–) 25.gh8Q 1–0. Rafalski,Krzysztof (1665) – Przybylak,Gabriela, Ogolnopolski Integracyjny Turniej Szachowy Poland, 2012. (=1.e4 c6 2.b4 e5=)

3.Ba3 Nf6 4.Nc3 a5–/+ 5.Qb1? ab4–+ 6.Bb4 c5 7.Bd3 (7.Bc5 Bc5 8.Bc4 Qc7–+). Zamoht – Klaus Behrmann, ChessWorld.net, 2005.

3.Bb2 Na6 4.Ba6 ba6 5.Be5 f6 6.Bc3 d6 7.Nf3 c5 8.bc5 dc5 9.Nh4 g5 10.Qh5 Ke7 11.Ng6 1–0. Wall,Bill – Tomcat, Internet, 2001.

3.Bb2 Qc7 4.Nf3 f6 5.a3 d5 6.ed5 cd5 7.d4 e4 8.Nfd2 Bd6 9.Qh5 Qf7 10.Qf7 Kf7 11.c4 Be6 12.cd5 Bd5 13.Nc3 Be6 14.Nde4 Bf4 15.g3 Bc7 16.Bg2 Nd7 17.Nb5 Bb8 18.Nec3 Ne7 19.Bb7 Nb6 20.Ba8 Na8 21.Ne4 Rd8 22.0–0–0 Nb6 23.Nc5 Bf5 24.Rhe1 Nc4 25.d5 Nd5 26.Nd4 Bc8 (26...Bg4 27.f3 Nde3+–) 27.Nc6 (27...Rd6 28.Nb8+–) 1–0. Wochnik – Schuehler,Ernst, corr 3GMM½–01, 1998.

3.Bb2 d6 (--> 1.b4 e5 2.Bb2 d6 3.e4 c6).

3.Bb2 Bd6 4.a3 Nf6 5.Nc3 0–0 6.Bc4 b5 7.Bb3 Na6 8.Nf3 h6 9.0–0 Bb7 10.Re1 c5 11.Nb5 Be7 12.Be5 d6 13.Bf4 cb4 14.a4 Ne4 15.d3 Nec5 16.Nfd4 Nb3 17.Nb3 Bg5 18.Bd6 Re8 19.Re8 Qe8 20.Nc5 Rc8 21.Nb7 Qd7 22.Na5 Bd8 23.Nc4 Nc5 24.Bc5 Rc5 25.Qd2 Rc4 26.Na7 Bf6 27.Ra2 Bc3 28.Qe3 Rg4 29.Qh3 Qe6 30.g3 Rg3 31.Qg3 Qa2 32.Qb8 Kh7 33.Qb5 Qc2 34.Nc6 b3 35.Qf5 Kg8 36.Ne7 Kf8 37.Qd7 Qd1 1–0. Long_Knights – halo2, ChessWorld.net, 2005.

3.Bb2 Qe7 A) 4.Qg4 Nf6 (4...Nh6 5.Qe2 d6 6.Nf3 f5=) 5.Qf5 Qb4 6.Qe5 Kd8=; B) 4.b5 Nf6 (4...cb5 5.Nc3 b4 6.Nd5 Qd6=; 4...Qb4 5.Be5 d6 6.Bf4 Qe4=) 5.Qe2 cb5 6.Qb5 Ne4=; C) 4.a3 Nf6 (4...a5 5.b5 Nf6 6.Qe2 cb5=; 4...d6 5.Nf3 Nf6 6.Nc3 Nbd7=; 4...d5 5.ed5 cd5 6.Nf3 a5=) 5.Nf3 Ne4 6.Ne5 f6=.

3.Bb2 f6 (--> 1.b4 e5 2.Bb2 f6 3.e4 c6).

3.b5 c5 4.Qh5 (4.Nc3 d6+=) 4...d6 5.a4 (5.Bc4 Qe7+=) 5...g6 (5...Nf6 6.Qe2=+) 6.Qf3 Bg7 7.Bc4 Nf6 8.h4 (8.Nc3 Bg4 9.Qg3 0–0=) 8...h5 (8...0–0 9.h5 Bg4 10.Qg3 Bh5 11.Nc3=+) 9.Nh3 Nbd7 10.Ng5 a6?? (better is 10...0–0=) 11.Nf7+– Qe7 12.Nh8 Bh8 13.Nc3 a5 (13...Nb6 14.Ba2+–) 14.Nd5 (14.Qg3 Ng4+–) 14...Nd5 15.Bd5 (15.ed5 e4 16.Qa3 Nb6+/–) 15...Nb6 16.Bg8 Bd7 17.g4 (better is 17.Qg3 Bg4 18.f3+–) 17...Bg4+/– 18.Qg3 d5 19.ed5 0–0–0 20.Be6 Kb8? 21.Bg4+– hg4 22.Qg4 Rd5 23.Qg6 Nc4 24.Qg8 Qd8 25.Rg1 e4 26.Rb1 Ne5 27.Rg3 Nf3 28.Ke2 Nd4 29.Kd1 Bf6 30.Qf7 Rd7 31.Qh5 b6 32.Rg6 Bh4 33.c3 Nf3+/– 34.Rb2 The mate threat is Rxd2 34...Bf2 35.Kc2 Be1 36.Kb3 Bd2 37.Rg2?? Bc1–+ 38.Rbe2 Rd2 39.Qg4 Qd5 40.c4 Qd3 0–1. IrishBouncer – halo2, ChessWorld.net, 2005.

3.b5 d5 4.bc6 Nc6 5.ed5 Qd5 6.Nc3 =.

3.c3 a5 4.b5 (4.Nf3 d5=) 4...Nf6 (4...d5 5.ed5 Qd5 6.bc6 Nc6 7.d3=) 5.Nf3 Ne4 6.Qe2 (6.Ne5 d6 7.Nf3 d5=) 6...d5 7.d3 Nf6 8.Ne5 Be7 9.d4 (9.bc6 Nc6 10.Ba3 Be6=+) 9...0–0=+ 10.Nd2 (10.Qf3 Re8=+) 10...Re8 11.f4 (11.Qe3 Bf5=+) 11...Ng4 (11...Bf5 12.g4 Ng4 13.Kd1–+) 12.Kd1 (12.c4 dc4 13.Qc4 Be6–/+) 12...Nh6 (12...Ne5 13.fe5 cb5 14.Qb5=+) 13.h3 (13.Qh5 Qb6=+) 13...cb5 (13...f6 14.Nef3–/+) 14.Qb5=+ f6 (14...Nf5 15.Ndf3=+) 15.Nef3 Nf5 Black is in command 16.Nb1 (16.Qd3 Ng3 17.Ng5 Nf5= (17...Nh1?? 18.Qh7 Kf8 19.Qh8)) 16...Ng3 17.Rg1 b6 18.Qb2 (18.Ba3 Nf1 19.Qf1 Ba6 20.Be7 Qe7–/+) 18...Nf1 19.Rf1 Nc6 20.Re1 Ba6 (20...Bf5 21.Nbd2–/+) 21.Be3 Rc8 22.g4 (22.Nbd2 Bd3–/+) 22...Qc7 23.Nbd2 Bd3 24.Rc1 (24.Qb3 Nb4! 25.Rc1 b5–/+) 24...a4 (24...b5 25.Qb3 Nb4 26.h4–/+) 25.a3 (25.c4 dc4 26.Nc4 Bb4–/+) 25...Na7 (25...b5 26.h4–/+) 26.g5 Ba3?? (better is 26...fg5 27.fg5 Nb5–/+) 27.Qa3+= Nb5 The pressure on the backward pawn c3 grows 28.Qb4 (28.Qa4 Nc3 29.Rc3 Qc3 30.Nb1 Bb1 31.Qe8 Re8 32.Re2–+) 28...Nc3–/+ 29.Rc3 Qc3 30.Qc3 Rc3 31.gf6? (31.Bf2 Rec8 32.Nf1 Bf1 33.Rf1 Rc1 34.Ke2 R8c2 35.Nd2 Rf1 36.Be3–+) 31…Rec8 (32.Nb3 Bc2 (< 32...Rb3 33.f5–+; < 32...ab3 33.Re2 Be2 34.Ke2–+) 33.Ke2 Bb3–+) 0–1. Zimmermann,Joerg (1700) – Luzuriaga,Norberto Horacio (1700), TT–02.31 TSC, 2002.

3.Bc4 d5 4.ed5 cd5 5.Bb5 Bd7 6.Bd3 (better is 6.Qe2!? e4 7.Bd7 Nd7 8.Qb5–/+) 6...Bb4–+ 7.c3 Be7 8.c4 (better is 8.Be2–+) 8...Bc6 9.Qb3 (9.Nc3 Nf6 10.cd5 Nd5–+) 9...Nd7 (9...dc4 10.Bc4 Bg2 11.Qg3–+) 10.cd5 Nc5 11.Qc4 (11.Qc2 Nf6 12.Be2 Bd5 13.Nf3–+) 11...Bd5 12.Qg4 (12.Qc3 Nd3 13.Qd3 Bg2 14.Qb5 Qd7 15.Qe5 Bh1 16.d4–+) 12...Nd3 13.Kd1 Nf2 14.Ke1 Ng4 15.h3 Bh4 16.Kd1 Ne3! 17.de3 Bg2 18.Ke2 Be4 19.Rh2 Qd3# 0–1. Roseeis – hardgamer, internet, 2006.

3.Bc4 Nf6 4.Nf3 Ne4 5.0–0 –/+.

3.d4 Qh4 4.Qd3 d5 5.ed5 Qd4 6.Qd4 ed4 7.a3 =.

3.Qf3 a5 4.Bc4 (4.Bb2 d6=) 4...Qf6 (4...Nf6 5.Bb2 b5=+) 5.Qf6 (better is 5.b5=) 5...Nf6–/+ 6.ba5 (6.Bb2 ab4 7.Be5 Ne4–/+) 6...Ra5 (6...Ne4 7.Bd3 d5 8.Bb2–/+) 7.Nf3 (7.d3 d5 8.Bd2 Rc5 9.ed5 cd5=+) 7...Ne4–/+ 8.0–0 (8.Bb2 f6–/+) 8...f6 (8...d5 9.Be2 Bg4 10.d3–+) 9.d4 (9.Be2 d5–/+) 9...d5 10.Bb3 (10.Bd3 Bd6–/+) 10...Nd7 (10...Bd6 11.Nbd2 Bb4 12.de5 Nd2 13.Bd2 Bd2 14.Nd2 fe5 15.Rfe1–+) 11.Nbd2 (11.c4 ed4 12.cd5 Ndc5–+) 11...Nd2 (better is 11...Bb4!?–+) 12.Bd2=+ e4?? (better is 12...Ra3 13.de5 fe5 14.Ne5 Ne5=+) 13.c4?? (better is 13.Ba5 b6 14.Bd2 ef3 15.Rfe1 Kd8 16.a4+/–) 13…Ra8 (14.Rfe1 Kd8–+; 13...Ra6 14.Rfe1 Kd8 15.Nh4 dc4 16.Bc4–/+) 0–1. caromero – sagaz (2205), net–chess.com, 2006.

3.Qf3 Bb4 4.Qg3 =+.

3.Nf3 Qc7 4.Bc4 (4.Bb2 d6=) 4...d5 5.ed5= Bg4 (5...cd5!? 6.Bd5 Nf6=) 6.h3 (6.a3 cd5 7.Bd5 Nf6+/–) 6...Bh5 (6...Bf3 7.Qf3 Bb4+=) 7.0–0 (7.g4!? Bg6 8.Bb2=) 7...cd5= 8.Bd5 Nf6 9.Bc4?? (better is 9.Nc3=) 9...Qc4–+ 10.Ne5 (10.Re1 e4 11.a3–+) 10...Qd4 (10...Bd1?! 11.Nc4 Bc2 12.Re1 Kd8 13.Ne5–+) 11.Qe1 (11.c3 Qe5 (11...Bd1?! 12.cd4 Bc2 13.Re1–+) 12.g4 Bg6–+) 11...Qa1 12.Bb2 (12.Nc3 Bb4 13.Ng6 Kd7 14.Nh8 Nc6–+) 12...Qa2 (12...Qb2?! 13.Nd3 Kd8 14.Nb2 Bb4 15.Qe5–/+) 13.Nc3 (13.Ng6 Kd7 14.Nf8 Rf8 15.Bf6 Re8–+) 13...Qe6 14.Qe3 Be7 15.Nb5 Na6 16.Ra1 0–0 17.Nd4 Qb6 18.Bc3 Nb4 19.Rb1 a5 20.Nf5 Bc5 21.d4 Bd6 22.Qg5 Bg6 23.Ng6 fg6 24.Re1 gf5 25.Rb1 Qc7 26.Qf5 Qc3 27.Qe6 Kh8 28.Qd6 Qc2 29.Re1 Nd3 30.Rf1 Ne4 31.Qd5 Nef2 32.Qb7 Rac8 33.Qe7 Nh3 (34.Kh1 Rf1 35.Kh2 Qc1 36.Qf7 Rh1 37.Kg3 Qg5 38.Kf3 Rf1 39.Ke2 Re1 40.Kd3 Qe3#) 0–1. donny38 – rla, internet, 2007.

3.Nf3 Bd6 4.b5 Ne7 (4...Bc5 5.Ne5 d6 6.Nd3+/–) 5.bc6 (5.d4!?+=) 5...Nbc6 6.Bb5 (6.Bc4 Bc5=) 6...h6 (6...a6 7.Bc4=) 7.a3 (7.Bb2 a6 8.Bc4 b5=) 7...a6 8.Bc6 (8.Be2 Bc5=) 8...Nc6 (8...dc6 9.0–0=+) 9.Nc3 0–0 10.Nd5 b5 11.d3 Ne7 12.Ne7 Qe7 13.0–0 Bc5 14.Qe2 d6 15.Re1 Bb7 16.h3 (16.a4 f5=+) 16...f6 17.Be3 Be3 18.Qe3 Rfc8 19.Rab1 (better is 19.d4!?=) 19...Rc2–/+ 20.Re2 Rc3 21.Ra1 d5–+ 22.ed5 Bd5 23.Qd2 Ra3 24.Ra3 Qf7?? 25.d4+– Qg6 26.de5 Bc4 27.Re1 Be6 28.ef6 Qf6 29.Rae3 Re8 30.Qa5 Qg6 31.Nd4 Bd5 32.Re8 Kh7 33.g3 Threatening mate. how? 33...Qd3 34.Qb6 Qd2 35.Qc5 Bc4 36.Qe5 Bd3 37.Re7 (37...Qe1 38.Qe1+–) 1–0. andre2004 – halo2, ChessWorld.net, 2005.

3.Nh3 Bb4 4.Qg4 d5 5.Qg7 =+.

3.Nh3 d5 4.Qh5 de4 5.Nc3 (5.Qe5 Qe7 6.Qe7 Be7–/+) 5...Bb4 (5...Qd4 6.Ng5 g6 7.Qe2–/+) 6.Bc4 (better is 6.Qe5 Kf8 7.Ne4 Bh3 8.gh3=+) 6...g6?? (better is 6...Qe7 7.Ne4 g6=+) 7.Qe5+– Be6 (7...Kf8 8.Qh8 b5 9.Rb1+– (9.Qh7?! bc4 10.Rb1 Qe7+–)) 8.Ne4 (better is 8.Qh8 Bc4 9.Qg8 (9.Ne4?! f5 10.Ng3 Qf6 11.Qf6 Nf6+–) 9...Kd7 10.Qd8 Kd8 11.Ne4+–) 8...Nh6 (8...Qe7 9.Qh8 Bh3 10.Qg8 Kd7+–) 9.Be6 (9.Qh8 Kd7 10.Be6 Kc7 11.Qe5 Bd6+–) 9...fe6 (9...Rg8 10.Nf6 Qf6 11.Qf6 fe6 12.Qb2+–) 10.Qh8 Bf8 11.Ba3 Kf7 12.Qh7 Bg7 13.Nhg5 Ke8 14.Qg7 Ng4 15.Rb1 c5 16.Rb7 Nc6 17.Qg8# 1–0. epolhill – chicharones, net–chess.com, 2005.

3.Qh5 Bb4 4.Qe5 Be7 =.

3.Qh5 Bd6 4.Bb2 Nf6 5.Qh4 0–0 6.Nf3 b5 (6...Bb4 7.Be5 Be7 8.Qf4=+) 7.a4 Ba6 (7...Na6!? 8.ab5 Nb4+=) 8.ab5+/– Bb5 9.c4 Bc4? (9...Ba6 10.Be5 Be5 11.Ne5 Qe7=) 10.Bc4+– Bb4 11.Be5 Be7 12.0–0 d5 13.ed5 (13.Ng5 Nbd7 14.Bf6 Nf6 15.ed5 cd5+–) 13...cd5 14.Bb5 Nbd7 15.Bd4 Ne4 16.Qh3 Ndc5 17.d3 Nb3 18.de4 de4 19.Bg7 Kg7 20.Ng5?? (20.Qg3 Kh8 21.Qe5 Bf6 22.Qe4 Ba1+– (22...Na1?? 23.Bd3 Qd3 24.Qd3+–)) 20...Bg5?? (20...Na1 21.Qh7 Kf6 22.Ne4 Ke6 23.Qh6 f6 24.Ng5 Kd6+–) 21.Qb3+– Qc7 22.Nc3 a6 (22...Qf4 23.Nd5 Qe5 24.Rfd1+–) 23.Ra6 Ra6 24.Ba6 Rb8 25.Qc4 (25.Qd5 Bf4 26.Qh5 Rb6+–) 25...Qc4 26.Bc4 f5 27.Nd5 Rc8 (28.Bb3 Bf6+–) +–. Taulien,Hans_Juergen – Tiedemann,Joern, remoteschach.de, 2002.

3.Qh5 Qe7 4.Nf3 d5 5.Nc3 Nf6 6.Qe5 de4 +=.

3.Qh5 Nf6 4.Qe5 Qe7 5.Qe7 Be7 6.e5 Nd5 7.a3 d6 8.c4 Nc7 9.Bb2 0–0 10.f4 f5 11.d4 Ne6 12.g3 de5 13.fe5 Nd7 14.d5 cd5 15.cd5 Nd8 16.Bc4 Kh8 17.Nf3 Re8 18.0–0 Nb6 19.Bb3 Nf7 20.d6 Nd6 21.ed6 Bd6 22.Ng5 1–0. Gross – Hasler, corr SOK–97–120 1997.

3.a3 d5

4.Bb2 de4 5.Be5 Nf6 6.Qe2 (6.Nc3 Nbd7 7.Bf4 c5=) 6...Nbd7=+ 7.Bb2 b6 (7...Bd6 8.Nc3 Qe7 9.d3=) 8.d4 (8.Nc3 Qe7=) 8...a5 9.b5 cb5 10.Qb5 (10.Nc3!? Bb7 11.f3=) 10...Ba6–/+ 11.Qg5 (11.Qa4 Bf1 12.Kf1 Bd6=+) 11...h6 12.Qg3 Bf1 13.Kf1 b5 14.Ne2 Qb6 (14...Rc8 15.Nbc3–/+) 15.h3 (15.Kg1 Qd6=+) 15...Bd6 16.Qe3 (16.f4 0–0–/+) 16...0–0 17.g3 (17.Kg1!?–/+) 17...Rfc8–+ 18.c3 Be7 19.Nd2 Qe6 (19...Qc6 20.Kg2–/+) 20.Nf4 Qf5 21.Kg2 Bd6 22.Ne2 Nb6 23.g4 Qh7 24.Ng3 Nbd5–+ 25.Qe1 Bg3 26.Kg3 Nc3 27.Kh2 Ncd5 28.Rc1 Nf4 29.Qe3 Nd3 30.Rc8 Rc8 31.Ba1 Rc2 32.Rd1 Ra2 33.Qg3 Qg6 34.d5 Nd5 35.Qb8 Kh7 36.Qb5 Qg5 37.Ne4 Qf4 38.Kg1 Nf2 39.Ng5 hg5 40.Qb1 Kg8 41.Qa2 Qg3 42.Kf1 Nd1 43.Bd4 0–1. SuperForte – REXChess 80286, 1994.

4.Bd3 de4 5.Be4 Nf6 6.Qe2 =+.

4.Bd3 Nf6 5.ed5 cd5 6.c4 (6.Nf3 Bd6=+) 6...e4 7.Be2 d4 (7...dc4!? 8.Bc4 Qd4–/+) 8.d3= Bf5 (8...a5 9.de4 Ne4 10.Bf3=) 9.Bg5 (9.de4 Be4 10.f3 Bg6=) 9...h6 10.Bf6 (10.de4 Be4 11.Bf6 Qf6=) 10...Qf6 11.de4 Be4 12.Bf3 Bf3 (12...Qe7 13.Qe2 Bc6 14.b5 Bf3 15.Nf3+=) 13.Nf3 Attacks the isolani on d4 (13.Qf3 Qe6 14.Ne2 Nc6=) 13...d3 14.0–0?? (better is 14.Nbd2 Qe7 15.Kf1=) 14...Qa1–+ 15.Qd3 Nc6 16.Re1 (16.Nc3 Qa3 17.Qe4 Be7 18.Nb5–/+) 16...Ne7?? (better is 16...Be7–+) 17.Nc3+– Qa3?? (better is 17...Qe1 18.Ne1 Rd8+/–) 18.Qe3 (better is 18.Ne5 Rd8 19.Nd5 Rd5 20.Qa3 Re5 21.Re5+–) 18...Qb4 19.Nd5 Qd6 20.Nd4 Kd8 21.Nb5 Qd7 22.Nbc7?? Rc8 23.Qa7 Nd5 24.Re8 Kc7 25.Qa5 Kb8 26.Rc8 Kc8 27.Qa8 Kc7 28.Qa5 Nb6 29.Kf1 Qd1 (30.Qe1 Qe1 31.Ke1 Bc5–+; 29...Qd3 30.Ke1 Bb4 31.Qb4 Re8 32.Qe7 Re7#) 0–1. worldplayer (1695) – bgage (1800), net–chess.com, 2006.

4.d4 de4 5.Bb2 (5.de5 Qd1 6.Kd1 a5=+) 5...ed4–/+ 6.Bd4 (6.Qd4 Qd4 7.Bd4 Ne7–/+) 6...Bf5 (6...a5 7.Qd2–/+) 7.Bc4 (7.Nc3 a5 8.b5 Nf6=+) 7...b5 8.Bb3 Bg6 (8...a5 9.c3–/+) 9.Ne2 Qc7 (9...a5 10.c3–/+) 10.0–0 (10.Nd2 a5=+) 10...Nd7 (10...a5 11.Nd2=+) 11.Ng3 (11.c4 bc4 12.Bc4 Ngf6=+) 11...Ngf6 12.Re1 Be7 (12...Bd6 13.c4=+) 13.Nc3 e4 seems the pivot of the position (13.Nd2 Bd6=) 13...0–0 (13...Qf4 14.Qe2=) 14.Nce4 Rad8 (15.Qe2 Ne4 16.Ne4 Rfe8=; 14...a5 15.Qd2=). worldplayer (1695) – grahamtrue (2060), net–chess.com, 2006.

4.ed5 cd5

5.Bb2 Nc6 6.Bb5 e4 7.Qe2 a6 8.Bc6 bc6 9.d3 Qg5 10.g3 a5 11.Nf3 Qh6 12.b5 Rb8 13.de4 de4 14.Qe4 Qe6 15.Qe6 fe6 16.Bc3 cb5 17.0–0 a4 18.Re1 Ne7 19.Nd4 Kf7 20.Nd2 Nd5 21.Bb2 Be7 22.Nc6 Rb6 23.Ne5 Kg8 24.Ne4 Bf6 25.Rab1 h5 26.f4 Be5 27.Be5 h4 28.g4 Kh7 29.Ng5 Kg6 30.h3 Rf8 31.Re4 Bb7 32.Rb2 b4 33.Rd4 Kh6 34.Kf2 Rc8 35.Ke1 Ba8 36.Rd2 Rf8 37.Rf2 Rc8 38.Rd2 Rf8 39.Re2 Nf4 40.Bf4 Rf4 41.Ne6 Rc4 42.Rb4 Rbb4 43.ab4 a3 44.g5 Kg6 45.c3 Rc3 46.Kd2 a2 47.Re1 Rc4 48.Nf8 Kf5 49.Ra1 Rf4 50.Kc3 Bd5 51.g6 Kg5 52.Rd1 Bg8 0–1. Baer,Werner – Woelfelschneider,Peter, THT7.26, 2001.

5.Bb2 d4 6.Bb5 Nd7 (6...Nc6!?=) 7.Qe2+= a6 (Better is 7...Qe7!?+=) 8.Qe5+– Qe7 9.Qe7 Ne7 10.Be2 Nb6 (10...a5 11.b5+–) 11.Nf3 Nf5 12.0–0 Na4 13.Bd4 Nd4 14.Nd4 Bd6 15.Bf3 Be5 16.Re1 f6 17.Nc6! Bd7 18.Ne5 fe5 19.Bb7 Ra7 20.Re5 Kd8 21.Be4 Rc7 22.Ra2 Nb6 23.d3 Ba4 24.c3 Bb3 25.Rb2 Bd1 26.h3 Re8 27.Re8 Ke8 28.Bh7 g5 29.Be4 Nd7 30.c4 Ne5 31.Nc3 g4 32.Nd1 gh3 33.gh3 Rg7 34.Kf1 Rg5 35.f4 Nc4 36.fg5 Ne3 37.Ne3 (37...Kf8 38.Bb7+–) 1–0. Taulien,Hans_Juergen – Taulien,Christian, Demoturnier remoteschach.de, 2002.

5.d4 Bd6 6.Nf3 Bg4 7.Bb5 Nc6 8.h3 Bf3 9.Qf3 =.

5.d4 e4 6.c4 Nf6 7.Nc3 Be7 8.Bg5 Nbd7 9.c5 0–0 10.Nge2 h6 11.Be3 Nb8 12.Nf4 Qd7 13.Be2 b6 14.0–0 bc5 15.bc5 Ba6 16.Ba6 Na6 17.f3 Rad8 18.fe4 de4 19.Qe1 Rb8 20.Qg3 Nc7 21.Rab1 Nb5 22.Rb5 Rb5 23.Nb5 Qb5 24.Nd5! Nd5 25.Bh6 The mate threat is Qxg7 25...Qf1?? 26.Kf1+– Bf6 27.Bg5 Bd4 28.Qd6 Ne3 29.Ke2 Nc2 30.Be7 Ra8 31.Qd5 Rb8 32.Bd6 Rb2 33.Qa8 Kh7 Do you see the mate threat? 34.Qe4 Kg8 35.Kd3 f6 36.c6 Bb6 37.Bc5! Na3 38.Qe6 Kh8 39.Ba3 (39...Rb1 40.Bd6+–) 1–0. Luehrig,Walter – Luzuriaga,Norberto Horacio, Orang–Utan Invitational, 2002.

5.Nf3 Nc6 6.d4 (6.b5 e4 7.bc6 ef3 8.Qf3 bc6=) 6...e4 7.Ne5 Be7 (7...Bd6 8.Bb5 Nge7 9.Bg5 Be5 10.de5=+) 8.Bb5 (not finished). Kucharkowski,Jens – Davila,Jose, Orang Utan Invitational, 2002.

3.a3 Nf6

4.Bb2 d6 5.Nc3 Be7 6.Nf3 Nbd7 =.

4.Bb2 Ne4 5.Qe2 d5 6.d3 Nf6 =.

4.Qe2 a5 5.Nf3 ab4=+ 6.Ne5 Be7 7.Nd3 0–0=+ 8.Bb2 ba3 The passed pawn on a3 quickly leads to threats 9.e5 Nd5 10.Na3 d6 11.Nc4 Ra1 12.Ba1 Re8 13.Qf3 Nd7 14.Be2 de5 15.Nde5 Ne5 16.Be5 b5 17.Ne3 Bb4 18.Bd4 Bd2 19.Kd2 Nf6 20.c3 c5 21.Rd1 cd4–+ 22.Kc2 Qa5 23.Rd4–/+ Qa2 24.Kc1 Be6 25.Bd3 Rc8 26.Nd1 Bb3 27.Qf5 Qa1 28.Bb1 Do you see the mate threat? 28...Qa6 29.Bc2 Be6 30.Qd3 Qa5 31.Ne3 h6 32.Kd2 Re8 33.f4 Kf8 34.Rb4 Attacks the isolani on b5 Bd7 35.Nd5 Qa1 36.Rb1 Qa6 37.Nc7 The pressure on the isolated pawn grows 37...Ne4 38.Qe4 Qd6 39.Qd4 Qc7 40.Re1 Rd8 41.Qb4 Kg8 42.Kc1 Be6 43.Re5 Bc4 44.Qe7 Threatening mate... how? 44...Qb8 45.Re3 Qa8 46.Be4 Bd5 47.Bb1 Bg2 48.h3 Bd5 49.Kb2 Rc8 50.Qe5 Qc6 51.Rg3 g6 52.f5 Re8 53.Qd4 b4 (54.Qb4 Qc7–+; 53...Re2 54.Kc1 Re1 55.Kb2–+) 0–1. Baer,Werner – Luzuriaga,Norberto Horacio, TT–02 TSC, 2002.

4.Qe2 d6 5.Bb2 =.

4.Nf3 d5 5.ed5 e4 =.

4.Nf3 Ne4 5.Qe2 Nf6 6.Qe5 Be7 7.Bd3 0–0 8.0–0 Re8 =.

3.Bb2 Bb4

4.Be5 Nf6

5.c3 Ba5 6.Bd6 Bc7 7.Bg3 Bg3–/+ 8.hg3 Qe7 9.f3 d5 10.d3 Na6 11.Nd2 b6 12.Qa4 Bb7 13.d4=+ Nc7 14.e5= Nd7 15.Bd3 h6 16.Ne2 0–0 17.Kf2 a5 18.Rh5 Rfc8 19.Rah1 Kf8 20.Nf4 Ke8 21.e6 fe6 22.Ng6 Qd6 23.f4 Nf6 24.Qd1? Kd8 25.Ne5 Qf8 26.R5h3=+ Nce8 27.Bg6 Kc7 28.Qb3 Ba6 29.Rb1 b5 30.a4 Rcb8 31.Bd3 b4= 32.c4 g5 33.Rc1 gf4=+ 34.cd5 fg3 Opening the f–file gets Black a lot of play 35.Kg1 Nd5 36.Rc6 Kd8 37.Ne4 Bd3–/+ 38.Nd3 Qe7?? (39.Nec5 Nd6=+; 38...Nf4 39.Nf4 Qf4 40.Qe6 Qe3 41.Kf1 Qd4 42.Ng3 Qd1 43.Qe1 Qd3 44.Ne2 Qf5 45.Kg1 Nf6=+). Blaszczak,Jan – Gugulski,Marcin, corr 2. AMM Poland, 1994.

5.c3 Ba5 6.Qf3 0–0 7.Bf6 Qf6 8.Qf6 gf6 9.Na3 d5 (9...Re8 10.0–0–0–/+) 10.ed5+= cd5 11.Ne2 Bg4 (11...Rd8 12.0–0–0+=) 12.h3 (12.Nc2 Nc6+=) 12...Be2 (12...Bd7 13.Nc2+=) 13.Be2= Re8 14.Rb1 b6 (14...Bb6!?=) 15.Nb5+/– Re7 16.Nd4 Nd7 17.0–0 Nc5 18.Bg4 Ree8 (18...Ne4 19.Rfd1+/–) 19.Rfe1 Ne4 (19...a6 20.g3+/–) 20.Re2 Kg7 (20...Kf8 21.Bd7 Re5 22.Nc6 Nc3 23.Re5 (worse is 23.Ne5 Ne2 24.Kf1 fe5 25.Ke2 Ke7+=) 23...Nb1 24.Rd5+–) 21.Bd7 Re7?? (better is 21...Red8 22.Bc6 Rac8+/–) 22.Nf5+– Kf8 23.Ne7 Ke7 24.Bc6 Kd6 (24...Rd8 25.Rb5 Kf8 26.Rd5 Rd5 27.Bd5 Nc5+–) 25.Ba8 (25.Ba8 Nc5 26.Re8+–) 1–0. pierre – szczesny, internet, 2009.

5.c3 Be7 6.d4 =.

5.c3 Be7 6.Bf6 Bf6 7.d4 d6 8.Nf3 0–0 9.Bd3 Bg4 10.0–0 Nd7 11.Nbd2 Qc7 12.Rb1 Rfe8 13.Qc2 h6 14.Ne1 c5 15.h3 Bh5 16.Qb3 cd4 17.cd4 Bd4 18.Qd5 (Worse is18.Qb7 Qb7 19.Rb7 Nc5–/+) 18...Qc3 19.Qh5 (Worse is19.Rb7 Nf6 20.Qc4 Ne4 21.Ne4 Qc4 22.Bc4 Re4=+) 19...Qd2 20.Rb7 Nc5 (20...Bf2 21.Rf2 Qe1 22.Rf1 Qe3 23.Kh2=) 21.Bc4 (21.Qf7 Kh8 22.e5 Bf2 23.Kh2 Qg5 24.Rf2 Nb7+– (24...Qe5? 25.g3+–)) 21...Kh8 (21...Nb7 22.Bf7 Kf8 23.Bd5=) 22.Rf7= (22.Bf7? Bf2 (22...Nb7 23.Be8 Bf2 24.Rf2 Qe1 25.Rf1 Qe4 26.Rf8 Kh7 27.Bg6 Qg6 28.Qg6 Kg6 29.Ra8+–) 23.Kh2 Re5–+ (23...Nb7?! 24.Be8 Qf4 25.Kh1–/+; 23...Be1 24.Be8 Bf2 25.Rf7+–)) 22...Ne4 (22...Re4? 23.Nf3 Qc2 24.Bd5+– (24.Nd4?! Rd4 25.Rg7 Kg7 26.Qf7 Kh8 27.Qf6 Kh7 28.Qd4 Rd8+–)) 23.Qg6 Qg5 24.Qg5 Ng5 25.Rd7 Red8 26.Rd8 Rd8 27.Bd5 Rd7 (27...Rb8 28.Nd3=) 28.Nd3+= g6 29.Re1 Kg7 30.Kf1 a5 31.g3 h5 32.Re8 Nh7 33.Rg8 Kh6 34.Nf4 Rg7 35.Rd8 Bc5 36.Ne6 Re7 37.Nc5 dc5 38.Ra8 Nf6 39.Bb3 Ne4 40.Ra5 Nd2 41.Kg2 Nb3 42.ab3 Rb7 43.Rc5 Rb3 44.h4 Kg7 45.Rc6 Kf7 46.Ra6 Rc3 47.Ra2 Kf6 48.f3 Kf5 49.Ra5 Kf6 50.g4 hg4 51.fg4 Rc4 52.Kf3 Rc3 53.Kf4 Rc4 54.Kg3 ½–½. Krasny,Henryk Jan – Benussi,Alberto, TKM/SF/01, 2001.

5.Qf3 Be7 6.Bb8 Rb8 7.e5 Nd5 8.Bc4 d6 9.Bd5 cd5 10.Qd5 0–0 11.f4 de5 12.Qd8= Rd8 13.fe5 The passed pawn on d2 quickly leads to threats 13...Rd5 14.Ne2 Re5=+ 15.d4 Re3 16.Kf2 Bg5 17.h4 Bg4 18.Nbc3 Bh6 19.Rhe1 Rc8 20.Nd5 Ree8 21.Nec3 Be6 22.Rad1 Kf8 23.Kg1 Red8–/+ Black gets in control 24.Re5 g5! 25.Rf1 Rc6 26.Nb4 Rc3 27.Re6 Bg7 28.hg5 Rd4 29.Nd3 Rc2 30.Re3 Ra2 31.Nf4 Rd6 32.Ne6 Kg8 33.Ng7 Rdd2 Threatening mate... how? 34.Rf6 Rg2 35.Kf1 Rh2 Do you see the mate threat? 36.Kg1 Rag2 37.Kf1 Rb2 The mate threat is Rh1 38.Kg1 Rbg2?? 39.Kf1 Kg7 40.Re7 Rg5 Black begins to deal mighty blows 41.Ref7 Kh8 42.Rb7 a5 43.Ra7 Kg8 44.Re6 Rf5 45.Ke1 Rf7 46.Re8 Kg7 47.Rea8 Ra2 (48.Ra5 Ra5 49.Ra5 h6–+; 47...Rh5 48.Ra5 Ra5 49.Ra5–/+) 0–1. Rushton,Darren – Luzuriaga,Norberto Horacio, TT–01 TSC, 2002.

3.Bb2 d5

4.ed5 Qd5 A) 5.Qe2 A1) 5...f6 6.Nc3 (6.a3= Ne7 7.Nc3 Qd8 8.Rd1=) 6...Qd8 7.f4 Nd7 8.Nf3=; A2) 5...Bd6 6.f4 f6 7.fe5 fe5 8.Nc3+=; A3) 5...Nd7 6.Nf3 (6.b5 Ngf6 7.Nf3 Bd6 8.Nc3=) 6...Bd6 7.a3 Ngf6 8.d4=; B) 5.Nc3 B1) 5...Qd6 6.Qe2 (6.a3 Nf6 7.Nf3 Bg4 8.h3=; 6.b5 a6 7.bc6 Nc6 8.Nf3=) 6...Nf6 7.Nf3 Qb4 8.Qe5=; B2) 5...Qe6 6.a3 (6.b5 Nf6 7.Nf3 Bd6 8.Bd3+=) 6...Nf6 7.Nf3 Bd6 8.Qe2=; C) 5.a3 Nf6 6.Nf3 (6.Nc3 Qd8 7.Qe2 Bd6 8.Ne4=; 6.Qe2 Bd6 7.f4 Bg4 8.Nf3=; 6.c4 Qe6 7.Nf3 Nbd7 8.Qe2=) 6...Bd6 7.Ne5 Be5 8.Qe2+=.

4.ed5 Bb4

5.Qe2 f6 6.f4 (6.a3 Be7 7.dc6 Nc6 8.Nf3 +=.

5.Qe2 Nf6 Qd5 7.fe5= Qe6 8.Nh3=) 6.Qe5 Be7 7.d6 (7.dc6 Nc6 8.Qf4 0–0=; 7.Qg3 Qd5 8.Qg7=) 7...Qd6 8.Qd6 Bd6 9.Bf6 gf6 10.Nc3 0–0 (10...Kd8 11.Nf3=) 11.d4 Re8 12.Kd2 c5 (12...Bf4 13.Kd1=) 13.dc5 (13.d5 Bf4 14.Kd1 Be5+=) 13...Bf4 (13...Bc5 14.Rd1=) 14.Kd1 Nd7 15.Nge2 Bc7 16.Nd5 Be5 17.Rc1 (17.Rb1 Nc5 18.f4 Rd8=) 17...Nc5 18.f4 Rd8 19.c4 Bd6 20.Rc2 (20.Kd2!?=) 20...Bf5–/+ 21.g3 Bf8 22.Nd4 Be4 23.Bg2 Bc2 24.Kc2 Rd6 25.Rd1 Ra6 26.Kb2 Rd8 27.Bf3 Na4 28.Kb1 Rd5 29.cd5 Nc3 30.Kb2 Nd1 31.Bd1 Ba3 32.Kb1 Rb6–/+ 33.Bb3 a5 34.Kc2 a4! 35.Bc4 Bc5 36.Nf5+= Kf8 37.h3 Rb4 38.Kc3 b5 39.Bd3 a3 40.Bc2 Rb2 41.Bb3 Rf2 42.h4 Rf3 43.Kc2 Bb4 44.d6 Rc3 45.Kb1 Ke8 46.h5 Rc5 47.Bc2 Bd2 48.h6 b4 49.Nd4 Kd7 50.Ne2 Rh5 51.Bh7 Rh6 52.Bd3 Rh2 53.Kc2 Be1 54.Bc4 Bg3 55.Kb3 Be1 56.Nd4 Rb2 57.Ka4 Bg3 58.Bb3 Bf4 59.Kb4 Bd6 60.Kc4 Rh2 0–1. Wallner,Josef (2330) – Luzuriaga,Norberto Horacio (2375), corr ICCF WSTT/3/06/4, 2006.

5.Be5 Qe7 6.Qe2 f6 7.Bc3 Bd6 8.dc6 +=.

5.Be5 f6 6.Bb8 (6.Bc3 Qe7 7.Be2 cd5 8.Nf3+=; 6.a3 Bc5 7.Bb8 Rb8 8.d4+=) 6...Rb8 7.dc6 bc6 8.Bc4 +=.

5.Be5 Nf6 6.a3 Be7= 7.dc6 Nc6 8.Bb5 =.

5.Be5 Nf6 6.c3 Bd6 7.dc6 Nc6?? 8.Nf3?? (8.Bd6 Qd6 9.Nf3 0–0=) 8...0–0?? (8...Ne5 9.Ne5 Be5 10.d4–+) 9.Be2?? (9.Bd6 Qd6 10.Be2 Re8=) 9...Bg4 10.0–0?? Re8?? 11.d4 Rc8 12.Bd3?? Ne7?? 13.h3 Bh5 14.Re1 Ned5 15.Nbd2 Nc3= 16.Qb3 Qc7?? 17.Kh1 Bf3= 18.Nf3 Ncd5 19.Qc3?? b6 20.Qc6?? h6 21.Kh2 Qb8 22.a4 Qa8 23.Qc4?? Qb7 24.Qc2?? g6 25.Kg1?? Qe7 26.Kh2?? Nf4 (27.Bc4 Be5 28.de5 N6d5+=; Better is 26...Rc2 27.Bc2 Bb4–+) +=. Hemzo,Miguel Angelo – Luzuriaga,Norberto Horacio, Orang Utan Invitational, 2002.

5.Be5 Nf6 6.c3 Bd6 7.dc6 Be5 8.cb7 Bb7 9.Nf3 –+.

5.Be5 Nf6 6.c3 Bd6 7.Bd6 Qd6 8.dc6 Nc6 9.Nf3 0–0 10.Be2 Bg4 11.0–0 Rfe8 12.d4 Rac8 13.Bd3 (13.Nbd2 Nd5 14.Rc1 Nf4=) 13...Ne7 14.h3 Bh5 15.Re1 Ned5 16.Re8 Re8 17.Nbd2 Nc3 18.Qb3 Qc7 19.Kh1 Bf3 20.Nf3 Ncd5 21.Ne5 Re7 22.Rc1?? (22.Bc4 Nb6=) 22...Qd8 23.Qc3?? Re8 24.Qb4?? b6 25.Qa4 a5 26.Qc6 h6 27.Kh2 Qb8 28.a4 Rd8 29.Kg1 Qa8 30.Qc4 Qb7 31.Nc6 Rd6 32.Qc2 g6 33.Ne5 Kg7 34.Kh2 Nf4= 35.f3 ½–½. Hemzo,Miguel Angelo – Luzuriaga,Norberto Horacio, corr OUI, 2002.

3.Bb2 Nf6

4.a3 d6 5.Nc3 Be7 6.Nf3 0–0 =.

4.a3 Ne4 5.Qe2 d5 6.d3 Nf6 7.Be5 Be6 8.Nf3 a5 9.b5 Bd6 (9...cb5 10.Nd4=+) 10.d4 0–0 11.Qd3 (11.Bd6 Qd6 12.Qe5 Qd7=+) 11...Ne4 12.Be2 cb5 13.Qb5 Nc6 14.0–0 Re8 15.Bd6 Nd6 16.Qb2 Bg4 17.c3 Qc7 18.h3 (18.Ne5 Be2 19.Qe2 f6–+) 18...Bh5 19.a4 Ne4 (19...Bf3 20.Bf3 Nc4 21.Qb5=) 20.Bd1 Rac8 21.Nbd2 Nd6 22.Rc1 f6 23.Bb3 Bf7 24.c4 Nb4 25.cd5= Qd7 26.Rc8 Qc8 27.Rc1 Qd7 28.Qc3 Rc8 29.Qa1 Nd3 30.Rc3 Nf4 31.Rc8 Qc8 32.Qa3 Qc1 33.Qc1 Ne2 34.Kf1 Nc1 35.Nc4 Nb3 36.Nd6 Bd5 37.Ke2 Bc6 38.Ke3 Ba4 39.d5 b6 40.Nd4 Nd4 41.Kd4 Bb3 42.Nc8 b5 43.Na7 Bc4 44.Kc5 Kf8 45.Nb5=+ Bb5?? 46.Kb5+/– Ke7 47.Ka5 Kd6 48.Kb4 Kd5 49.Kc3 Ke4 50.Kd2 f5 ½–½. Taulien,Hans_Juergen – Baumann,Heinz, remoteschach.de, 2002.

4.Be5 d5 5.ed5 Bb4 6.c3 Bd6 7.Bd6 Qd6 8.dc6 0–0 (8...Nc6 9.Nf3=) 9.Be2 (9.cb7!? Bb7 10.Ne2+=) 9...Nc6= 10.Nf3 Bg4 11.0–0 Rad8 12.d4 Rfe8 13.Nbd2 Nd5 14.Rc1 Qa3 15.Bc4 Nc3 16.Qc2 Ne2 17.Be2 Re2 18.Ng5 g6 (worse is 18...Nd4 19.Qh7 Kf8 20.Rc7+–; 18...Rd4 19.Qh7 Kf8 20.Nde4+/–) 19.Qc4 Qe7 20.Ndf3 Bf3 21.Nf3 Qe6 22.a4 Re4 23.Qe6 Re6 (23...fe6 24.Rfd1+=) 24.Rfd1= Red6 25.Rc4 a6 26.Kf1 h6 27.h3 g5 28.g4 b5 29.ab5 ab5 30.Rc5 b4 31.Rc4 Rb8 32.Nd2 Rb6 (worse is 32...Nd4 33.Ne4 Rdd8 34.Rcd4 Rd4 35.Rd4+–) 33.Nb3 Ne7 ½–½. Jansen,Joop HEP (2405) – Flores Gutierrez,Carlos (2490), ICCF Rochade, 2005. (=1.e4 c6 2.b4 e5 3.Bb2 Nf6 4.Be5)

4.Nf3 Bb4 5.Ne5 Qe7 6.Qe2 0–0 =.

4.Nf3 Ne4 5.Be5 d5 6.Qe2 Nd7 =.

4.Be5 Bb4

5.c3 Be7 6.d4 d5 7.ed5 cd5 8.Bd3 Nc6 9.Nf3 Ne5 10.Ne5 0–0 11.0–0 Qc7 12.Qc2 Bd6 13.f4 Be6 14.Nd2 Rfc8 15.Rf3 Bb4 16.Rc1 Be7 17.g4! Ba3 18.Re1 Ng4 19.Bh7 Kh8 20.f5! Ne5 21.Re5 Bd7 22.Rh3! (22.f6!? gf6 23.Rh5 Bg4 24.Bg8! Kg8 25.Qh7 Kf8 26.Qh8 Ke7 27.Qf6 Ke8! 28.Rh8 Kd7 29.Qf7 Kc6 30.Rh6 Bd6 31.Rd6 Qd6 32.Rf6 Rg8! 33.Rd6 Kd6 34.Kh1 Raf8 35.Qh7) 22...Qd6? 23.Nf3 f6 24.Re6 Be6?! 25.fe6 Qc6 26.Nh4 g5 27.Bg8! Rc7 28.Qg6! g4 29.Bf7! Bc1 30.Nf5 gh3 31.Qg7# 1–0. Labahn,Wolfgang – COMP, 1' 1990 (Labahn).

5.c3 Be7 6.d4 d5 7.Bf6!? Bf6 8.e5 Be7 9.Bd3 c5! 10.Ne2 c4? (10...Nc6) 11.Bc2 Nc6 12.0–0 0–0 13.f4 f6 14.Nd2 fe5 15.de5!? Qb6 16.Kh1 Bf5 17.Rb1 Bc2 18.Qc2 Qc7 19.Nf3 Qd7 20.Nfd4 b6 21.Rf3 Rac8 22.Rh3 g6 23.Nc6 (23.Rf1 Ne5!) 23...Qc6 24.Nd4 Qe8?! 25.Rf1 Bc5 26.Qd1! Qd7 27.e6 Qg7 28.f5 Qf6 29.Rhf3 Qe5 30.f6! Bd6 31.f7 Kh8 32.Rh3 Rc5? 33.Qd2 Rfc8? 34.Rff3 Ra5? 35.Rh7!! Kh7 36.Rh3 Qh5 (36...Kg7 37.Qh6 Kf6 38.Rf3 Ke7 39.Nc6 Ke6 40.Qg6 Kd7 41.Ne5 Be5 42.Qf5) 37.Rh5 gh5 38.Nf5 Kg6 39.Nd6 1–0. Labahn,Wolfgang – COMP, 4' 1990 (Labahn).

5.Qf3 d5 6.ed5 Qe7 7.Qe2 0–0 (7...cd5 8.Bf6 Qe2 9.Ne2 gf6 10.Nf4=) 8.c3 (8.Bb8!? Rb8 9.a3+=) 8...Bd6=+ 9.Bg3 (9.Nf3 Nd5 10.Bd6 Qd6=+) 9...Qe2 (9...Nd5 10.Qe7 Be7 11.Bb8 Rb8 12.d4–/+) 10.Be2 Bg3 11.hg3 cd5 12.Na3 Nc6 13.Nb5 a6 14.Nd6 Rd8 15.Nc8 Rac8 16.Nf3 d4 17.cd4 Nd4 18.Nd4 Rd4 19.Rh4 Rd7 20.Kd1 Re8 21.Rc1 Rde7 22.Bd3 g6 23.a4 Rd7 24.Bb1 h5 25.f3 Rde7=+ 26.Ba2 Re1 27.Kc2 R1e2 28.Kd3 Rg2 29.Rc7 Rd8 30.Ke3 Rdd2 31.Bf7+= Kg7 32.Bc4 Kh6 33.Rb7= Nd5 34.Ke4 Nc3 35.Ke3 Nd1 36.Ke4 Rg1 37.Ke5 Rg3 38.Ke4 Kg5–/+ 39.Rh1 Rd8 40.f4 Kh6 41.Rd1 Rd1 42.Ra7? Re1 43.Kd5 Rg4 44.Ra6 Rf4 45.Bd3 Rg4 46.Bb5 Rg2 47.Kd4 h4 48.Ra8 Rd1 49.Ke3 Rg3 50.Kf4 g5 51.Ke4 h3 (52.a5 g4–+) 0–1. Taulien,Hans_Juergen – Tiedemann,Joern, remoteschach.de, 2002.

5.Nf3 d6 6.Bf6 gf6 7.c3 Ba5 8.Bc4 +=.

5.Nf3 d6 6.Bf6 Qf6 =+.

5.Qf3 Be7

6.Bb8 Rb8 7.e5 Nd5 8.Bc4 Qc7 9.d4 =.

6.Bb8 Rb8 7.e5 Nd5 8.Bc4 d6 =+.

6.Bb8 Rb8 7.e5 Ng8 8.Qg3 g6 9.e6 d6 10.ef7 Kf7 11.Bc4 Kg7 12.Ne2 Nf6 13.0–0 b5 14.Bb3 Bg4 15.Nd4 Qd7 16.f3 c5?? (Better is 16...Bf5!?=) 17.fg4+= cd4 18.g5 Nd5 19.Nc3! dc3 20.Bd5 Qc8?? 21.Rf7 Kg8 22.Qf3 Qc5 23.Kh1 Qd5 24.Qd5 (24...Bg5 25.Ra7 Kf8 26.Qf7#; 24.Re7 Qf3 25.gf3 Kf8 26.Ra7 h6+/–) 1–0. Taulien,Hans_Juergen – Tiedemann,Joern, remoteschach.de, 2002.

6.Nc3 d6 7.Bd4 0–0 8.Rb1 Nbd7 9.Be2 Re8 10.Nh3 b5 11.0–0 b4 12.Bf6 Nf6 13.Rb4 d5 14.Ra4 d4 15.e5 dc3 16.ef6 Bf6 17.dc3 Bh3 18.gh3 Qc7 19.Bd3 Be5 (< 19...Bc3 20.Be4 Re4 21.Re4+/–) 20.Be4 Re6 21.Ra6 Rc8 22.Bf5 Rf6 23.Qe4 Rd8 24.Bh7 Kh8 25.Bf5 g6 26.Bg4 Bc3 27.Bf3 Rdd6 28.Ra3 Bd4 29.Qh4 Kg7 30.Re1 Rd8 31.Kg2 Rf4 32.Qg3 Be5 33.Rae3 Bd6 34.R3e2 Rc4 35.Qg5 Bb4 36.Rb1 a5 37.h4 f6 38.Qg3 Bd6 39.Qh3 Rc5 40.Rd1 f5 41.h5 g5 42.Re6 Kf7=+ 43.Rg6 Bf4?? 44.Bc6!+/– a4 45.Qa3 Rc6 46.Rd8 Qd8 47.Rc6 Qd5 48.Qf3 Qf3 49.Kf3 Bh2 50.Ra6 g4 51.Kg2 Bb8 52.Ra4 f4 53.Rc4 Be5 54.a4 Bb8 55.a5 (55...Ke6 56.Ra4+–) 1–0. Taulien,Hans_Juergen – Tiedemann,Joern, remoteschach.de, 2002.

6.Bc4 d6 7.Bd4 Bg4 +/–.

4.Be5 Ne4

5.a3 =.

5.Qe2 d5 6.Nc3 Qe7 7.Ne4 Qe5 8.Nc5 Qe2 9.Ne2 –/+.

5.Qe2 Qe7?? 6.Bd4?? d5=+ 7.d3 Nd6 8.Qe7 Ke7 9.Nf3 f6 10.Nbd2 Kf7 11.a3 Be6 12.g3 Nd7 13.Nb3 Re8=+ 14.Kd2 b6 15.Be2 Nb5 16.Bb2 c5 17.a4 Nc7 18.bc5 bc5 19.Nh4 d4 20.Na5 Rb8 21.Rhb1 Rb6 22.Nc4=+ Bc4 23.dc4 g6 24.f4 Bg7 25.f5 Re8 26.Ng2 Bh6 Black begins to deal mighty blows 27.Nf4 Reb8 28.fg6 hg6 29.Kc1 Ne6 30.c3 Bf4 31.gf4 Nf4 32.Bf1 d3 (33.Ra2 Ne5–+) 0–1. Kleindl – Labahn,Wolfgang, corr SOK–88–28, 1988.

5.Qe2 Qe7 6.Bd4 f6 7.Nc3 d5 8.Ne4 Qe4 9.Bc3 Qe2 10.Be2 Bd6 11.Nf3 0–0 12.0–0 Nd7 13.Nd4 Nb6 14.a4 Bd7 15.a5 Nc4 16.Rfe1 Rae8 17.d3 Ne5 18.f4 Nf7 19.g3 Re3 20.Bf3 Rfe8 21.Re3 Re3 22.Kf2 a6?? 23.Ke3 1–0. Wynia – Miraglia, email CTON 1996.

5.Qe2 Qe7 6.Qe4 d6 7.Nf3 Nd7 8.d4 de5 9.de5 Qb4 10.Nbd2 Nb6 11.Bd3 Be6 12.0–0 Rd8 13.Qe3 Bc5 14.a3 Qa5 15.Qg5 0–0 16.Qh4 h6 17.Qe4 g6 18.Qh4 h5 19.Qg5 Rfe8 20.Bg6 fg6 21.Qg6 Kf8 22.Qh6 Kg8 23.Ne4 Nd5? 24.Rad1?? Bf8? 25.Qg6 Bg7 26.Nf6 Nf6 27.ef6 Qc7 28.Ng5 Bc4 29.Rd3! Bd3 30.f7 Kf8 31.Nh7 (31...Ke7 32.Qg7+– (< 32.fe8Q Re8 33.Qg7 Kd8 34.Qd4 Qd7 35.Qd7 Kd7 36.cd3 Re2+–; < 32.fe8R Re8 33.Qg7 Kd8 34.Qd4 Qd7 35.Qd7 Kd7 36.cd3 Re5+–)) 1–0. Woelfelschneider,Peter (1795) – Meier,Franz, 06. VCC–Open, 2001.

3.c3 d5+=

4.Bd3 Nf6 5.Nf3 de4 6.Bc4? ef3 7.Qf3 Be7 8.Qg3 0–0 9.d3 Bf5 10.Bh6 Bg6 11.Bg5 Nbd7 12.0–0 a5 13.Nd2 ab4 14.cb4 Bb4 15.Ne4 Be7 16.Rad1 Be4 17.de4 Ne4 18.Qb3 Bg5 19.Qb7 Nec5 20.Qc6 Rc8 21.Qf3 Qf6 22.Qd5 Nb6 23.Qf3 Qf3 24.gf3 Nc4 25.Rc1 Nd2 26.Rfd1 Nf3 27.Kg2 Bc1 28.Rc1 e4 29.Rc4 Nd2 30.Rc2 Rfd8 31.Kg3 Rd3 32.Kf4 Nb1 33.h4 Nc3 34.a3 Rf3 35.Ke5 Nd3 36.Kd6 Rf2 37.Rf2 Nf2 38.Kd7 Ra8 39.a4 Ra4 40.h5 e3 41.h6 gh6 42.Kd6 e2 43.Kc5 h5 44.Kc6 e1Q 45.Kc5 Qe5 46.Kb6 Qb5 47.Kc7 Rd4 (48.Kc8 Qc6 49.Kb8 Rd8 50.Ka7 Ra8#; 47...Ra7 48.Kd6 Nfe4#) 0–1. chrisman – rtoma (1820), net–chess.com, 2001.

4.ed5 cd5 5.Bb5 (5.Nf3 e4 6.Nd4 Nf6=) 5...Bd7+= 6.Bd7 (6.Bd7 Nd7 7.d4+=; 6.Qe2 Bd6+=) 6…Nd7 +=. Aannevik,Bjarne – Akman,Ozgur, corr ICCF WSTT/3/06/1, 2006.

4.ed5 Qd5 5.Qe2+= Ne7 6.c4 Qe6 =.

4.Qe2 de4 5.Qe4 Bd6+= 6.d4 Nf6 +=.

3.c3 Nf6

4.Bd3 d5–/+ 5.f3 de4–+ 6.Be4 Ne4 7.fe4 Qh4 8.Kf1 Qe4 9.Nf3 Bg4 10.Kf2 Bd6 11.d3 Qf5 12.Qe2 0–0 13.Nbd2 Nd7 14.Ne4 Bc7 15.Be3 Bf3 16.gf3 Nf6 17.Ng3 Qe6 18.Rag1 Bb6 19.Bb6 ab6 20.a3 Ra3 21.Qd2 Ra2 (22.Qe2 Rfa8–+) 0–1. Breite – Pommerel,Wim, CiF, 1988.

4.d4 =.

4.Nf3 Ne4 5.Qe2 d5 6.d3 Nf6 7.Ne5 Be7=+ 8.g3 0–0 9.Bg2 Re8 10.0–0 Bd6 11.d4 Qc7 12.f4=+ b6 13.Qc2 c5 14.Qb3 Be6 15.bc5 bc5 16.Ba3 Nbd7 17.f5 Ne5 18.de5+= c4?? 19.Qb5?? Bd7?? 20.Bd6?? Bb5?? 21.Bc7+– Ng4 22.Re1 Bd7 23.Bd5 Bf5 24.Ba8 Ra8 25.h3 Nh6 26.g4 Bd3 27.Na3 f6 28.e6 Kf8 29.e7 Ke8 30.Nb5 Bg6 31.Bd8 Rd8 32.ed8Q Kd8 33.Na7 Nf7 34.Nc6 Kd7 35.Nd4 Nd6 36.Nf5 Bf5 37.gf5 Nf5 38.Re4 Nd6 39.Rd1 Kc6 40.Re6 g5 41.Rdd6 Kc5 42.Rf6 g4 43.hg4 h6 44.a4 h5 45.Ra6 Kd5+– 46.Rf5 Ke4 47.Rh5 Kd3 48.Rh3 Kc2 49.Rb6 Kd2 50.Kf2 Kc2 51.g5 (51...Kd2 52.Rb4+–) 1–0. zggenev – Long_Knights, ChessWorld.net, 2005.

3.d4 Bb4

4.c3 Bd6 5.Nf3 ed4!? 6.e5 Qe7 =.

4.c3= Bd6 5.Nf3 Qe7 6.Bd3 ed4 7.cd4 Bb4 8.Nbd2 Nf6 9.0–0 d5 10.e5 Nfd7 11.a3 Bc3 12.Ra2 Ba5 13.Nb3 Bc7 14.Bg5 Qf8 15.Qc2 h6= 16.Bh4 g5 17.Bg3 Bd8 18.e6 fe6= 19.Bg6 Ke7 20.Nc5 Ba5 21.Rb2 b6 22.Nb3 Ba6 23.Rfb1 Bb5 24.Na5 ba5 25.a4 Ba6 26.Ne5 (26...Ne5 27.Be5+– (27.de5?! Bc4+=)) 1–0. Ritter,Fredi (1700) – Munkwitz,Wolfgang (1700), TSC, 2003.

4.c3 Bd6 5.Nf3 f6 6.de5+= Be5 7.Ne5+/– fe5 8.Bc4 Nf6= 9.0–0 b5 10.Be2 0–0 11.Nd2 a5 12.c4 b4 13.a3 Bb7 14.ab4+= c5 15.bc5 Be4?? 16.Ne4+– Ne4 17.Bd3 Nf6= 18.Re1 Nc6 19.g3 Qe7=+ 20.f4 Qc5 21.Be3 Qe7 22.Bf5 e4 23.h4 Rfb8 24.Rb1 Nb4 25.c5? Nd3–+ 26.Re2 Rb1 27.Qb1 Nd5?? 28.Bd4?? N5b4?? 29.h5 Ra6 30.Rh2?? Nc6?? 31.g4?? Nd4–+ 32.Qb8 Kf7 33.Bh7 Nf3 Threatening mate. how? 34.Kg2 Nh2 35.Qg8 Kf6 36.Bf5 Ng4 37.Qh7 Nf4 38.Kg3 g6 39.Qe7 Ke7 40.Kf4 gf5 41.Kf5 Nf2 (42.Ke5 Rh6–+; better is 41...e3 42.Kg4 e2 43.Kf5–+) 0–1. KaiKerling – halo2, ChessWorld.net, 2005.

3.d4 d5

4.de5 Bb4 5.c3 Ba5 6.ed5 cd5 7.Nf3 Ne7 8.Bd3 Nbc6 9.0–0 0–0 10.Re1 h6 11.Ba3 Re8 12.Qc2 Bg4 13.Nbd2 d4 14.Bb2 Nd5=+ 15.c4 Nf4 16.Bh7=+ Kh8 17.Be4 Bf3 18.Nf3 Be1 19.Re1–+ Ne5 20.Ne5 Re5 (21.g3 Nh3 22.Kf1 Ng5–+) 0–1. Rosner,Dirk (1700) – Luzuriaga,Norberto Horacio (1700), TT–01 TSC, 2002.

4.ed5 Qd5 5.Nc3 Qd4 6.Bd2 Bb4 7.Qf3 Nf6 8.a3 Bg4 9.Qg3?? Ne4 10.Rd1 Bc3 11.Nf3 Bd2 12.Rd2 Qa1 13.Ke2 Ng3 14.fg3 e4 15.Rd4 Qd4 16.h3 ef3 17.gf3 0–0 18.fg4 Re8 (19.Kf3 Re3 20.Kg2 Qd2 21.Kg1 Rg3 22.Bg2 Qg2#) 0–1. rpoff – cursed, net–chess.com, 2001.

4.ed5 Qd5 5.Nf3!? ed4 6.Qe2 Be6 7.a3 –/+.

3.Nf3 Bb4

4.c3 Bd6 5.d4 ed4 6.Qd4 =.

4.Ne5 Qe7 5.Bb2 f6 6.a3 Bd6 7.Nf3 Qe4 8.Be2 Ne7 =.

4.Ne5 Qe7 5.Bb2 Nf6 6.Bd3 0–0 7.0–0 d6 8.Nc4 Nbd7 9.c3 Bc5–/+ 10.a4 d5 11.e5? Ne5–/+ (12.Ne5 Qe5 13.Bh7 Kh7–/+) 0–1. blammey – pokerpig (2140), net–chess.com, 2006.

3.Nf3 d5

4.a3?? de4 5.Ne5 Nd7 +=.

4.a3?? Nf6 5.Ne5 (5.Bb2 de4 6.Ne5 Nbd7+=) 5...Ne4+= 6.d4 (6.Nf3 a5 7.d3 Nf6+=) 6...Nd7 7.Nd2 Qe7 8.Ne4 Ne5 (worse is 8...de4 9.Nc4=) 9.Nd6 Qd6 10.Qe2 Bf5 11.de5 Qe6 12.g3 a5 13.b5 Bc5 14.Bb2 Qg6 15.Qd2 0–0–/+ 16.Bg2 Be4 17.f3 Bf5 18.g4 Bd7 19.0–0–0 Rfc8 20.Kb1 cb5 21.Qd5 Rc7 22.Bf1 Qb6 23.Qe4 Bc6–/+ 24.Qf5 b4 25.a4 b3 26.cb3 Qb3 27.Rd3 Qb4 28.Be2 Ba4 29.Rc1 Rc6 30.Qe4 Qe4 31.fe4 Bb4 32.Rd4 Rc1 (32...Rc1 33.Bc1 Bc6–+) 0–1. Straka,Jozef – Jakubcin,Milos, 23. Slovakia Championship Preliminary, 2009.

4.Nc3 Nf6 5.Ne5 Bb4 6.ed5 0–0 –/+.

4.ed5 Bb4 5.Ne5 Qd5 =.

4.ed5 e4 5.Nd4 cd5 6.Bb5 Bd7 7.Bd7 Nd7 8.Nc3 Bb4 9.a3? Bc3–/+ 10.dc3 Ngf6 11.Bg5 0–0 12.Nf5 Re8 13.0–0 Re5 14.Bf6 Qf6 15.Ne3 Nb6 16.Ng4= Qg5 17.Ne5 Qe5 18.Qd2 Rc8=+ 19.a4 Rc3 20.Ra2 h6 21.Rb1 Rc5 22.g3 Qc7 23.a5 Nc4 24.Qb4 Na5 25.Rbb2 b6 26.c3 Rc3 27.Ra3?? Ra3 28.Qa3 Nc4 29.Qc3 a5 30.Rb5 Qc6 31.Rb1 b5 32.h4 b4 33.Qc2 Qb5 34.Qe2 a4 35.Qg4 a3 36.Qd1?? Nb2 37.Qb3 Qd3 38.Qd3 Nd3 39.Kf1 a2 40.Ke2 ab1Q 41.Ke3 Qe1 42.Kd4–+ b3 43.Kd5 b2 44.g4 b1Q 45.g5 Qb5 46.Kd6 Qeb4 47.Kc7 Qe7 48.Kc8 Qbb7 (48...Qed7) 0–1. andre2004 – Long_Knights, ChessWorld.net, 2005.

4.ed5 e4 5.Nd4 Qd5!? 6.Bb2 Bb4 –/+.

4.ed5 e4 5.Qe2 cd5 6.Ba3 Nc6 7.c3 Nge7–+ 8.Nd4 Nd4 9.cd4 Nc6 10.Qd1 Nd4 11.Nc3 Be6 12.Bb5 Nb5 13.Nb5 Qb6 14.Nc3 Qa6 15.Bb2 Bb4 16.Qb3 Bc3 17.Bc3 d4! 18.Qb4 dc3 19.Qc3 0–0 20.Qe5 Bg4 21.f3 ef3 (22.Kf2 Rfe8–+) 0–1. Vauban – hardgamer, internet, 2006.

4.ed5 e4 5.Qe2 Qd5 6.Nc3 Qe6 7.Ne4 Bb4 +=.

3.Qh5 Qc7

4.Bb2 Bb4 5.Be5 Nf6 6.Bf6 gf6 7.c3 +=.

4.Bb2 d6 =.

4.Nf3 d5 5.ed5 e4 6.Qe5 Qe7 +=.

4.Nf3 d6 5.Nc3 Be7 6.Ng1 Nf6 +=.

4.Nf3 Nf6 5.Qe5 Qe5 6.Ne5 Ne4 =.

3.Qh5 d6

4.Bc4 Qc7 5.Qe2 f5 6.Bg8 Rg8 =.

4.Bc4 Qd7 5.Qe2 Nf6 6.Bb2 Be7 7.d4 ed4 8.Bd4 0–0 =+.

4.Bc4 Qe7 5.Qe2 b5 6.Bb3 a5 =.

4.Bc4 g6 5.Qe2 b5 6.Bd3 a5 7.g4? (better is 7.ba5!? Qg5 8.Qf3=) 7...ab4–+ 8.f3 (8.Bb2 Nf6 9.f3 Bh6–+) 8...h5 9.c4 (9.gh5 Rh5 10.Bb2 Be7–+) 9...bc3! 10.dc3 Nf6 11.f4? Ba6?? 12.h3? hg4–+ 13.fe5 de5 14.a3 gh3 15.Ra2 b4 16.Nh3?? Bd3 17.Qe3 Be4 18.Rhh2 Ng4 19.Qe4 Qh4 20.Kf1 Nh2 21.Rh2 Qe4 22.Nd2 Qf5 23.Kg1 Rh3 24.Rg2 Bc5 25.Rf2 Qf2 0–1. Boison,Roland Kojo – Laba,Solange, corr AA–S–07 ICCF, 2006. (=1.e4 c6 2.b4 e5)

2.e4 e6

3.a3 a5 4.b5 d5 5.ed5 ed5 6.d4 (6.Nf3 Nf6=) 6...Bd6 7.Be2 (7.Bd3 Nf6=) 7...Nf6+= 8.Nf3 Qe7 (8...0–0 9.0–0=) 9.0–0 0–0 10.bc6 bc6 (10...Nc6 11.Nc3=) 11.Nc3 (11.Re1 Re8=) 11...Bf5 (11...Ne4 12.Ne4 de4 13.Nd2=) 12.Re1 Ne4 (12...Qc7 13.Bd3 Bd3 14.Qd3=) 13.Ne4 Be4 (13...de4 14.Bd3=) 14.Qd2 (14.Ng5 Bg6=) 14...Qc7 15.h3 Nd7 16.Ng5 Nf6 17.Ne4 Ne4 18.Qd3 Rab8 (18...Rfe8 19.Rb1=) 19.Be3 (19.c4 Rfe8=) 19...Rb2 (19...Rfe8 20.Rab1+=) 20.f3 (20.Bf3 f5=) 20...Ng3 21.Bd1 (21.Qc3 Rfb8+=) 21...Re8 22.c4 dc4 (22...dc4 23.Qc3 Rbb8+=). Psion – Psion, 4 Min/Zug, 1990.

3.Ba3 d5 =.

3.Ba3 Nf6 4.e5 Nd5 5.Qg4 f5 6.Qg3 b5 7.Nc3 a5 8.Nd5 ed5 9.Be2 Qe7 10.Nf3 Na6 11.0–0 Qf7 12.Ng5 Qg6 13.Qh4 h5 14.Nh3 Be7 15.Nf4 Qg5 16.Qg5 Bg5 17.Nh5 ab4 18.Bb2 0–0 19.a4 ba3 20.Ba3 Re8 21.d4 Bd2 22.Rad1 Bb4 23.Bb2 Bb7 24.Bd3 Rf8 25.c3 Be7 26.Nf4 Kh7 27.g4 g6 28.gf5 gf5 29.Bc2 Rf7 30.Rd3 Rg8 31.Ng2 Rgg7 32.Rf3 Rg5 33.Bc1 Rh5 34.Rg3 Rg7 35.Bd1 Rh4 36.Nh4 Bh4 37.Rg7 Kg7 38.Bc2 Kg6 39.Be3 Nc7 40.Kh1 Ne6 41.Rg1 Kf7 42.Bf5 Ke8 43.Rg8 Kf7 44.Rb8 Ba6 45.Be6 Ke6 46.Re8 Kf7 47.Ra8 Bb7 48.Ra7 Bc8 49.Rc7 Ba6 50.Rd7 Ke8 51.Rc7 Kd8 52.Rc6 Bb7 53.Rc5 Kd7 54.Rb5 Bc6 55.Ra5 Be7 56.f4 Bd8 57.Ra7 Ke6 58.Ra6 Kd7 59.f5 Be7 60.f6 Bb7 61.Ra7 Bf6 62.Rb7 Ke6 63.Rb6 Kf5 64.ef6 Kg6 65.Kg2 Kf7 66.h4 Kg6 67.Bg5 Kf7 68.Rb7 Kg8 69.f7 Kf8 70.Bh6# 1–0. Green Light Chess v2.15c – Butcher111, 2001.

3.Bb2 a5 4.b5 d5 5.ed5 cd5 6.Nf3 Nf6 7.Be2 Bd6 8.a4 0–0 9.0–0 Nbd7 10.d4 Re8 11.Nbd2 e5 12.de5 Ne5 13.Ne5 (13...Be5 14.Be5 Re5 15.Nf3=; 13.Be5 Be5 14.Ne5 Re5=). Brukske – ball, internet, 2006.

3.Bb2 d5 4.Bd3 de4 5.Be4 Nf6 6.Bf6 Qf6 7.d4 Bb4 8.c3 Qf4 9.Qc2 f5 10.cb4 Qe4 11.Qe4 fe4 12.Nc3 0–0 13.Ne4 a5 14.ba5 Nd7 15.Nf3 Ra5 16.Ned2 e5 17.Nc4 Rd5 18.Ne3 Ra5 19.Nc4 Rd5 20.Ne3 Ra5 21.Nc4 ½–½. Bestia02c – Gromit220, computer chess game, 2000.

3.Nc3 Bb4 4.Qg4 –/+.

3.Nc3 b5 4.d4 a5 5.ba5=+ Qa5 6.Bd2 Bb4 7.Qb1?? Bc3–+ 8.Nf3 Bd2 9.Nd2 Ba6 10.c4 bc4 11.Qc2 Bb5 12.Bc4 Bc4 13.Qc4 Ne7 14.Rd1 0–0 15.0–0 Qa2 16.Qd3 d5 17.Ra1 Qa1 18.Ra1 Ra1 (19.Nb1 Nd7–+) 0–1. Stoot – Tricky Rabbitt, ChessWorld.net, 2005.

3.a3 d5

4.e5 Nd7 5.d4 a5 6.b5 c5 7.c3 1–0. Kruimer,Wim – Behnke,Denny, TSC, 2002.

4.e5 a5

5.ba5 Qa5 6.Nf3 =.

5.ba5 c5 6.Nc3 Nc6 7.Nf3 g5 8.h3+= Bg7 9.Bb5 Nge7 10.0–0 0–0= 11.Ng5 Ne5 12.Qh5 h6 13.Nf3 N5g6 14.Rb1= Ra5 15.Ne2 Nf5 16.d4 b6 17.a4 Bd7 18.dc5+= bc5 19.Bd2 Ra4 20.Ba4 Ba4 21.Rfc1 Re8 22.Nf4 Nf4 23.Bf4 Qd7 24.Ne5 Qc7 25.Nd3 Qe7+= 26.c3 c4 27.Ne5 Ra8 28.Re1 Qc7 29.Ra1+/– Ra6 30.Ra2 Bb5 31.Ra6 Ba6 32.g4 Nd6 33.Bh6 Bh6 34.Qh6 Ne4 35.Nf3 Qb6 36.Qh4+– Kg7 37.Ng5 Nf6 38.Qg3 Bc8 39.h4 Qd8 40.h5 Kg8 41.Qf4 Qe7 42.h6 Nh7 43.Nf3 f6 44.Qb8 Qe8 45.Ra1 Bd7 46.Qb7 Qe7 47.Ra8 Nf8 48.g5 Qf7 49.Qb8 e5 50.Qf8! Qf8 51.h7! Kh7 52.Rf8 Bg4 53.Rf7 Kg8 54.Rf6 Bf3 55.Rf3 Kg7 56.Rf5 d4 57.Re5 dc3 58.Re4 Kf7 59.Rc4 Kg6 60.f4 Kf5 61.Rc3 Kg6 62.Rc6 Kf7 63.Rb6 Kg7 64.f5 Kf8 65.Rb7 Kg8 66.f6 Kf8 67.g6 Ke8 68.g7 Kd8 69.g8R# (69.g8Q#) 1–0. jaskier (2135) – halocan (1625), internet, 2007.

5.b5 Qb6 6.Nc3 Bc5 7.Qe2 Bd4 8.Nf3 Bc3 9.dc3 Qc7 10.Rb1 Nd7 11.c4 dc4 12.Nd2 cb5 13.Rb5 c3 14.Nc4 Ne7 15.Nd6 Kf8 16.Qh5 Ng6 17.a4 Kg8 18.Ba3 Nge5 19.Re5 g6 20.Qh6 b6 21.Re3 Bb7 22.Bc4 Nc5 23.Bc5 bc5 24.Re6 Qd7 25.Qe3 1–0. Woelfelschneider – Kagel, Tiger SC 1999.

5.b5 Qb6 6.Nc3 Bd7 7.Rb1 +=.

5.b5 Qb6 6.Nc3 f6 7.d4 Nd7 8.f4 c5= 9.Be3 Qc7 10.Nf3 Nh6 11.Bd3 cd4 12.Bd4+= Bc5 13.b6 Qb6 14.Na4+/– ½–½. Labahn,Wolfgang – Lehmann,K (2315), Berliner Sommer 8th, 1990.

2.e4 Nf6

3.d3 e5

4.a3 a5 5.ba5 Qa5 6.Qd2 Bb4 7.c3 Be7 8.Bb2 d5 9.ed5 cd5 (9...Nd5?! 10.c4 Nf4 11.Qa5 Ra5 12.Bc3+=) 10.Nf3 Nc6 11.c4 d4 12.Qa5 Ra5 13.Nbd2 0–0 14.Be2 Bf5 15.0–0 Rfa8 16.Rfb1 h6 17.h3 Ba3 18.Ba3 Ra3 19.Ra3 Ra3 20.Rb7 Bd3 21.Bd3 Rd3 22.Rc7 Nb4 23.Re7 (23.Rb7 Nc2 24.Rb8 Kh7+=) 23...Nc6 (23...e4!? 24.Ne4 Kf8–/+) 24.Rc7+= Na5 25.Re7 (better is 25.Ra7!?=) 25...e4!–/+ 26.Ne4 Kf8 (worse is 26...Nc4 27.Nf6 gf6 28.Re4=) 27.Ra7 Nc4 (27...Rd1 28.Kh2 Ne4 29.Ra8 Ke7 30.Ra7 Kd8 31.Ra5 d3–/+) 28.Nf6= gf6 29.Kf1 Ne5 (better is 29...Rd1!? 30.Ke2 Nb2=) 30.Ke2+= Rb3 31.Ra8 Kg7 32.Nd4 Rb2 33.Ke3 Nc4 34.Kf3 Nd2 35.Ke3 ½–½. Kleist,Werner – Schenk,Dieter (1870), Bad Sooden Allendorf Senior op, 2004.

4.c3 a5 5.ba5 d5=+ 6.Bg5 de4–/+ 7.Bf6 Qf6 8.de4 Ra5 9.Nf3 Be7 10.Be2 0–0 11.0–0 Qg6 12.Qc2 Bh3 Do you see the mate threat? 13.Ne1 Nd7 14.Nd2 Rfa8 15.Kh1 Be6 16.c4 Bb4 17.Nb3 Ra3 18.Nd3 Be7 19.f3 b5 20.Nf2 Nb6 21.Nd2 b4 22.Nb3 Qg5 23.Rfd1 Na4 24.Rd3 Nc3 25.Rc3 bc3 26.Qc3 Ra2 27.Ra2 Ra2 28.Kg1 Re2 (29.Ng4 Bg4 30.fg4 Qg4–+) 0–1. Tanuki – Mario Cruz (1875), internet, 2005.

4.c3 d5 5.Nf3 =+.

3.e5 Nd5

4.a3 d6 5.c4 Nb6 6.Bb2 de5 7.Be5 Bf5 8.Nf3 N8d7 9.Bc3 e6 10.d4 Nf6 11.Nbd2 Be7 12.Be2 0–0 13.0–0 Qc7 14.Ne5 Rfd8 15.Qb3 Nbd7 16.f4 Bd6 17.Rad1 a5 18.c5 Be7 (19.ba5 Nd5=). Guido,Angel Pablo (1950) – Rosner,Dirk (1930), CiF, 2005.

4.a3 d6 5.c4 Nc7 6.Bb2 (6.ed6 ed6 7.Nf3 d5=) 6...Bf5 (6...de5 7.Be5 Nd7 8.Bc3=) 7.Nf3 Nd7 (7...de5 8.Ne5 f6 9.Nf3=) 8.ed6 ed6 9.Be2 d5 (9...Be7 10.Nd4 Bg6 11.Nc3=) 10.0–0+= Nf6 (10...dc4 11.Bc4 Ne6 12.Re1+=) 11.Re1 (11.Nd4 Bg6+=) 11...Be7 12.d4 (12.Nd4 Bg6+=) 12...0–0 (12...dc4 13.Bc4 0–0 14.Nc3=) 13.Nc3 (13.c5 Re8=) 13...h6 (13...Re8 14.c5=) 14.c5 Re8 15.Ne5 Ne6 16.Bh5 (16.b5 Qc7=) 16...Rf8 (16...Nh5 17.Qh5 g6= (worse is 17...Nd4 18.Nf7 Qd7 19.Ne5+/–)) 17.g4 (better is 17.Bf3!?=) 17...Bh7+= 18.Nf7 (18.Bc1 Qc7+=) 18...Rf7–/+ 19.Re6 (19.Bf7 Kf7 20.Ra2 Qd7–/+) 19...Nh5 (19...g6!? 20.Bg6 Bg6 21.Qe2–+) 20.gh5–/+ Bh4 21.Bc1? (better is 21.f3–+) 21...Bf2 22.Kh1 Qh4 23.Be3 Raf8 24.Qe2 Be3 25.Qe3 Rf3 26.Qg1 Rc3 (26...Rc3 27.Rae1 Bf5–+) 0–1. Euler,K – Schnabel,H, Bad Zwesten, 1997.

4.a3 d6 5.d4 a5 6.b5 Nc7 =.

2.Nf3 a5

3.b5 (--> 1.b4 a5 2.b5 c6 3.Nf3).

3.c3 g6 4.e3 Bg7 5.b5 a4 6.Na3 d5 7.Rb1 e5 8.Be2 e4=+ 9.Nd4 c5 10.Ndc2 Qa5 11.g3 c4 12.h4 Qd8 13.Nd4 Nd7 14.Nac2 Ne5 15.Ba3 Nf6 16.b6 Ra6 17.Nb4 Ra5 18.h5 Bg4 19.Bg4 Nfg4–/+ 20.f4 ef3 21.Nf3 0–0 22.Ne5 Ne5 23.Qe2 Rb5 24.h6 Nd3 25.Kd1 Be5–+ 26.Kc2 Nb4 27.Rb4–/+ Rb4 28.Bb4 Re8 29.Qf3 Re6 30.Rf1 Rf6–+ 31.Qe2 Qb6 32.Qg4 The mate threat is Qc8 32...Re6 33.Qf3=+ f6 34.Qd5= Qc6 35.Qa5? Kf7 36.g4=+ Bc7 37.Qc5= Threatening mate: Qf8 37...Qe4 38.Kc1 Bd6 39.Qd4? Qd4–/+ 40.ed4 Bb4 41.cb4 b5 42.Kb2 Re4 43.g5 f5 44.Kc3 Ke6 45.a3 Kd5 46.Rf2 Rd4 47.Re2 Re4 48.Rf2 Ke5 Black intends f4 49.Rf1 f4 50.d4 Rd4 51.Re1 Re4 52.Rd1 Re3 53.Kb2 f3 54.Rd7 f2 55.Rf7 Re2 56.Kc3 Ra2 (57.Rf2 Ra3 58.Kc2 Ra2 59.Kc3 Ra1–+) 0–1. Kirac,Smiljan – Mufic,Goran, Rijeka–Kraljevica, 2001.

3.ba5 Qa5

4.Bb2 (--> 1.b4 c6 2.Bb2 a5 3.ba5 Qa5 4.Nf3).

4.Nc3 d5 5.Bb2 Nf6=+ 6.g3 Nbd7–/+ 7.Bg2 e5 8.0–0 Bd6 9.a4 0–0 10.Ba3 Ba3–+ 11.Ra3 e4 12.Ne1 Ne5 13.Ra1 Bf5 14.h4 h5 15.Kh2 Nc4 16.Qc1 d4 17.Nd1? Nd2 18.Rh1 Ng4 19.Kg1 Nb3! 20.cb3 Qe1 21.Bf1 e3 22.fe3 Qg3 23.Bg2 Be4 (24.Kf1 Bg2 25.Kg1 Bh3#) 0–1. C_Artist_Think – smurilo (1670), chessHere.com, 2006.

4.Nc3 Nf6 5.e3 d5 6.Be2 Bf5 7.Bb2 Nbd7 8.0–0 e5 9.d4 e4 10.Nh4 Bg6 11.f3 Bd6 12.fe4 Ne4 13.Ng6? (better is 13.Ne4 Be4 14.Nf5 Bf5 15.Rf5+=) 13...hg6–+ 14.Ne4 Bh2 15.Kf2 de4 16.g3? (better is 16.Bc4–+) 16...Qg5 17.g4 (17.Ke1 Qe3 18.Qc1 Bg3 19.Kd1 Qc1 20.Bc1–+) 17...Qh4 18.Kg2 Qg3 19.Kh1 Bg1 0–1. Krul,Lukas – Ptosek,Jan (1780), Ostrava Konik op–B, 2007.

4.e3 e5 5.Be2 d6 6.0–0 Be7 7.c4 Be6 8.Qc2 (8.d3 Nf6 9.Ng5 Bd7 10.Qb3 Qc7 11.Bb2 Na6 12.d4 h6=) 8...Nd7 (8...Nf6 9.Ng5 0–0 10.Ne6 fe6 11.Qb3 Qa6 12.d4 Nbd7=) 9.Bb2 (9.d4 Ngf6 10.Ng5 ed4 11.Ne6 fe6 12.ed4 0–0=) 9...h6 (9...Ngf6 10.d4 0–0 11.Nbd2 ed4 12.Nb3 Qf5=) 10.d4 Ngf6 11.Nbd2 0–0 12.Nb3 (12.Rfb1 Qc7=) 12...Qc7 13.a4 g6 14.Bd3 Kh7 15.Nh4 (better is 15.a5!?+=) 15...e4+= 16.Be4? (better is 16.Be2+=) 16...Ne4–+ 17.Ng6 fg6 (worse is 17...Kg6 18.Qe4 Kh5 19.d5 cd5 20.cd5+/–) 18.Qe4 Bc4 19.Nd2? (19.Qe7 Rf7 20.Qe4 Bb3 21.Ra3 Ba4 22.Rfa1–+) 19...Nf6 20.Qc2 Bf1 21.Rf1 d5 22.f3 Bd6 23.g3 Bg3! 24.hg3 Qg3 25.Kh1 Qh4 26.Kg1 Qg5 27.Kh2 Qe3 28.Rg1 Qf4 29.Kg2 (29.Kh3 Rg8 30.Bc3–+) 29...Ne4! 30.Bc1 Qg3 (30...Qg3 31.Kh1 Nf2) 0–1. Szymanski,Leszek (1860) – Bajerlein,Dawid (1980), Szachowe Lato Poznan Poland, 2010.

4.e3 e5 5.Be2 e4 6.Nd4 Qg5 7.0–0 d5 8.f4 Qg6 9.c4 dc4=+ 10.Qc2 Nf6 11.f5 Qh6 12.Nc3 Bd6 Do you see the mate threat? 13.g3 0–0 14.Ne4 Be5 15.Bb2 b5 16.a4 Re8=+ 17.Nf2 Bd7 18.Nf3 Bb2=+ 19.Qb2 Nd5 20.ab5= Ra1 21.Ra1 cb5 22.e4 Nb6 23.Rb1 Qd6 24.Qd4 Nc8 25.d3 cd3 26.Bd3+= Nc6 27.Qd6 Nd6 28.Bb5 Ne4 29.Ne4 Re4 30.Rd1 Be8 31.Rd6 Na7 32.Bd3 Re7 33.Kf2 (33.Rd8 Nc6 34.Rc8 Ne5 35.Ne5 Re5+=) ½–½. Benassi,Aspasio (2085) – Simmelink,Jop (2250), WC–2001–F–00002, 2001.

4.e3 Nf6 5.Be2 e5 6.0–0 Be7 7.Bb2 d6 8.d4 ed4 9.ed4 0–0 10.c4 d5 11.Nbd2 Be6 12.Ne5 Qc7 13.c5 Nbd7 14.f4 Nc5 15.dc5 Bc5 16.Kh1 Bf5 17.Bd3 Ne4 18.Ne4 de4 19.Bc4 b5 20.Bb3 Bb6 21.Qh5 Be6 22.Be6 fe6 23.Qg4 Rf6 24.Rfd1 Rd8 25.Rd8 Qd8 26.Nc6 Rg6 27.Qg6 1–0. Hofmann,Bernhard (1895) – Mueller,Georg (2080), Wattens, 1995.

3.ba5 Ra5

4.e4 d5 5.ed5 Qd5 6.Be2=.

4.e4 d6 5.d4+= Nd7 6.Bd3 g6 (6...e5 7.0–0+=) 7.Bd2 (7.0–0 Bg7+=) 7...Ra8 8.0–0 (8.Be3 Bg7+=) 8...Bg7 9.c3 (9.Re1 Ngf6+=) 9...Ngf6 10.Re1 e5 (10...0–0 11.a4+=) 11.Qb3= 0–0 12.Qb4 (12.a3 Re8=) 12...c5 (12...Qc7 13.Be3=) 13.Qb2 (13.Qb5 ed4 14.cd4 Re8+=) 13...b6 (13...ed4 14.cd4 cd4 15.Nd4=) 14.Bb5+= Qc7 15.d5+/– Ba6 16.c4 Bb5= 17.Qb5 Nh5 18.Nc3+/– Ndf6 19.Reb1 Rfb8 20.Qb2 Ne8 21.Nb5 Qd8 22.Bg5 f6 23.Bd2 g5 24.Be3 Nf4 25.Bf4 gf4 26.Nh4+– Bf8 27.Nf5 Qd7 28.Qe2 Kh8 29.Rb3 Ng7 30.Ng7 Bg7 31.Rab1 f5 32.ef5 Rf8 33.Nc3+– Qf5 34.Rb6 Rae8? 35.Ne4+– f3 36.Qf3 Qf3 37.gf3 Rf3 38.Nd6 Ref8 39.Ne4 R3f4 40.Re1 Bf6 41.Rf6 R4f6 42.Nf6 Rf6 43.Re5 Ra6 44.Re2 Kg7 45.Rd2 Rd6 46.Kg2 Kf6 47.a4 h6 48.a5 Ke7 49.Re2 Kd7 50.Re6! h5 51.Rd6 Kd6 52.f4 h4 53.f5 Ke5 54.f6! Kd4 55.f7 Ke5 56.f8Q Kd4 +–. kamret (2155) – peti0815 (2085), GameColony.com, 2003.

4.e4 Nf6 5.e5 Nd5 6.c4 Nc7 7.d4 d6 8.Be2 g6 (8...de5 9.Ne5 Nd7 10.Nd7 Qd7 11.0–0+=) 9.ed6–/+ Qd6 10.c5 Qd8 11.Bd2 Ra8 12.Bf4 Bg7 13.Be5 f6 14.Bc7 Qc7 15.0–0 0–0 16.Bc4 Kh8 17.Nc3 Na6 18.Ne4 Nb4 19.Qb3–/+ Qa5 20.a3 Na6 21.Qe3 Nc7 22.Rfb1 Nd5 23.Bd5 cd5 24.Nc3 Qd8 25.Rb6 e5 26.Rd6–/+ ed4 27.Nd4 Qa5 28.Nb3 Qa7 29.Rd5 f5 30.Nb5 Qa4 31.N3d4 h6 32.Rd6 f4 33.Qe7 Bf5 34.Nf5 Rf5 35.Rg6 Rg8 36.Nd6 Qd4 37.Rc1 Kh7?? 38.Rh6! Kh6 39.Nf5 Kg6 40.Nd4 Bd4 41.Qe4 1–0. b4_player (1890) – Scamexterminator (1970), GameColony.com, 2002.

3.ba5 d5

4.c4 e6 5.Bb2 Qa5 6.e3 Nf6 7.Be2 Nbd7 8.0–0 Bd6 9.d4 0–0 10.Nbd2 b6 11.Qc2 Qa4 12.Qb1 Bb7 13.Ne5 Bc7 14.f4 c5 15.cd5 Ne5 16.fe5 Nd5 17.Rf3 Nb4 18.Rh3 h6 19.Bd1 Qa6 20.a3 Qd3 21.Qc1 Nc6 22.e4 Qa6+= 23.Nf3 cd4 24.Rh6?? Qd3 25.Rh4 Qe3 26.Kh1 Rfd8 27.h3 Ra5 28.Rg4 Rc5 29.Qb1?? d3 30.Qa2 Na5 31.Ba4 d2 32.Ng5 Nc4 33.Bb3 Ba6 34.Nf7 Kf7 35.Rf1 Kg8 (35...Kg8 36.Rgf4 Be5 (36...Nb2 37.Be6 Kh8 38.Rf8 Rf8 39.Rf8 Kh7 40.Bf5 Kh6 41.Qe6 Kg5 42.Qe7 Kf4 43.Bh7 Kg3 44.Qg7 Kh4 45.Qg4) 37.Be5 Re5–+ (37...Ne5 38.Be6 Kh8 39.Rh4 Qh6 40.Rh6 gh6 41.Rd1=)) 0–1. Walter,G – Boehnisch,M, Freiburg, 1970.

4.e3 Bf5 5.Nd4 Bg6 6.Nb3 e6 7.Bb2 Nf6 8.Ba3 (8.Be2 Bd6=) 8...Ba3 9.Na3 Qd6 10.Nb1 0–0 11.Be2 c5 12.d3 Nc6 13.Qd2 Rfc8 14.Nc3 Nd7 (14...Qe7 15.0–0=) 15.Nb5+= Qe7 16.c4 (16.0–0 e5+=) 16...Nb4 (16...dc4 17.dc4 Rd8 18.Qd6=) 17.0–0 dc4 (17...Ne5 18.f4 Ned3 19.a3 dc4 20.ab4=) 18.dc4+= Ne5 (18...Rd8 19.Qd6 Qg5 20.f4+/–) 19.Qd6+/– Qd6 20.Nd6 ½–½. Althoff,Guntram (2095) – Balduan,Markus (2350), 2006.

3.c3 ab4

4.cb4 d5 5.Bb2 =.

4.cb4 e6 5.Bb2 Nf6 6.Qb3 Na6 7.a3 d5 8.e3 Be7 9.d4 0–0 10.Nc3 Bd7 11.Be2 b6 12.Na4 Ne4 13.0–0 c5 14.dc5 bc5 15.b5 c4 16.Bc4 dc4 17.Qc4 Nd6 18.Qg4 e5 19.Qh5 Bb5 20.Qe5 Bf6 21.Qf4. NN – COMP, 1994.

3.c4 ab4

4.Qb3 Na6 =+.

4.d4 Nf6 5.a3 =+.

4.d4 Nf6 5.Qb3 e6 6.c5 Na6 7.e3 b5 8.Nbd2 Be7 9.Bd3 0–0 10.0–0 Bb7 11.e4 h6 12.Bb2 Qa5 13.a4 ba4 14.Ra4 Qc7 15.Rfa1 Qc8 16.Qc4 Nc7 17.Qb4 Ba6 18.Ba6 Na6 19.Qc3 Qb7 20.Qb3 Qb3 21.Nb3 Rfb8 22.Ra6 Ra6 23.Ra6 Rb3 24.Rb6 Rb6 25.cb6 Ne4 26.Ne5 Nf6 27.b7 Bd6 28.Nc4 Bc7 29.Nb6 d6 30.Nc8 Kf8 31.Ba3 Ne8 32.Na7 Nf6 33.Nc6 Nd7 34.Na7 Ke7 35.Nc8 Kf6 36.Nd6 Bb8 37.Ne8 Kg6 38.Bd6 Bd6 39.Nd6 Kf6 40.Ne8 Kf5 41.d5 ed5 42.Nc7 Nb8 43.Nd5 Ke5 44.Ne3 Kd6 45.Nf5 Kc6 46.Ng7 Kb7 47.Nf5 Kc6 48.Nh6 f6 49.Ng8 Nd7 50.h4 Kd5 51.h5 Ke6 52.g3 Kf7 53.Nh6 Ke6 54.Kg2 f5 55.g4 fg4 56.Kg3 Nf6 57.Kh4 Ne4 58.Ng4 Kf5 59.h6 Kg6 60.f4 Nd6 61.Kg3 Nf5 62.Kf3 Nh6 63.Nh6 Kh6 64.Ke4 Kg6 65.Ke5 Kf7 66.Kf5 Kg7 67.Ke6 Kg8 68.Ke7 Kg7 69.f5 Kh6 70.f6 Kg6 71.f7 Kg5 72.f8Q Kg4 73.Ke6 Kg3 74.Qf5 Kg2 75.Ke5 Kg3 76.Qf4 Kg2 77.Kf5 1–0. COMP – COMP, 1994.

4.e4 e6 –/+.

4.d4 d5

5.Qb3 e6 6.Nbd2 Nf6 7.e3 Be7 8.Bd3 0–0 9.0–0 Qa5 10.Ne5 Qa4 11.Qa4 Ra4 12.Bb2 Nbd7 13.f4 Ne5–/+ 14.fe5 Nd7 15.e4 b6 16.ed5 cd5 17.cd5 ed5 18.Bc2 Ra8 19.Bb3 Bb7 20.Rac1 Rfc8 21.Kf2 Nf8 22.Nf3 Ne6 23.Ke3 Bg5 24.Ng5+= Ng5 25.Rc8 Rc8 26.Rc1 Rc1 27.Bc1 Ne4 28.Bc2 f5 29.Be4 de4 30.Kf4 g6 31.e6+/– Bd5 32.Ke5 Ba2 33.d5 b3?? 34.Kf6 Kf8 35.d6 Ke8+– 36.Be3 b2 37.d7 (37...Kd8 38.Bb6#) 1–0. Trkn – CoolChessWiz, ICC, 2005.

5.cd5 Qd5 6.Bf4 Bf5 =+.

5.e3 Bg4 6.Nbd2 e6 7.Bd3 Nf6 8.Qc2 dc4–/+ 9.Bc4 Nbd7 10.0–0 Be7 11.Bd3 0–0 12.Ne5 Bh5 13.Nd7 Qd7–/+ 14.Nc4 Qc7 15.Ne5 Rfd8 16.f4 c5 17.Bb2=+ Rdc8 18.Qb3 Nd7 19.Be4 Ne5 20.fe5–/+ Ra7 21.a3 ba3 22.Ba3 b6 23.Qd3 Bg6 24.Bg6 hg6 25.Rab1?? Ra4 Black prepares the advance c4 26.Bb2–/+ c4 27.Qd2 Bb4 Black prepares c3 28.Qf2 b5 29.Qf3 Qd7 30.Ba1 c3 31.Kh1?? Ba5 32.d5? ed5 (33.Qe2 b4–+; 32...c2 33.Rbc1 Bd2 34.de6 Qe6 35.Bb2–+) 0–1. Benassi,Aspasio – Noire,Eric, WC–2001–F–00002, 2001.

5.e3 Bg4 6.Nbd2 e6 7.Bd3 Nf6 8.Qc2 dc4 9.Bc4 Nbd7 10.0–0 Be7 11.Bd3 0–0 12.Ne5 Bh5 13.Nd7 Qd7–/+ 14.Nc4 Qc7 15.Ne5=+ Rfd8 16.f4 c5 17.Bb2=+ Rdc8 18.Rfc1 Qd8 19.Qb3 Nd7 20.Be4 Ne5–/+ 21.fe5 Ra7 22.a3 ba3 23.Ba3=+ b6 24.Qd3 Bg6–/+ 25.Bg6 hg6 26.Rab1 Ra4 27.Rf1 Rca8–/+ 28.Bb2 c4 29.Qd2 Bb4 30.Qf2 R8a7 31.Rbc1 b5 32.Qf3 Rc7 Black intends c3 33.Qe2 Qd5 34.e4–/+ Qd7 35.Ba1 c3 36.Kh1 Ba5 37.d5 ed5 (38.ed5 Qd5–+) 0–1. Benassi,Aspasio (2085) – Noire,Eric (2175), WC.2001.F.00002, 2001.

5.e3 Bg4 6.cd5 Qd5 7.a3 e6 –/+.

2.Nf3 Qb6

3.a3 e6 4.e3 a5 5.ba5 Ra5 6.Be2 Nf6 7.0–0 Be7 8.d3 d5 9.Nbd2 Bd7 10.Nb3 Ra8 11.a4 Qc7 12.a5 Na6 13.Bb2 0–0 14.Ne5 Bd6 15.f4 b6 16.Qe1 Nb4? (better is 16...ba5 17.Ra5 Nb4=) 17.Qg3+– (17.Nd7?! Nd7 18.Qg3 g6=) 17...Ne8?? (better is 17...Be7 18.ab6 Qb7+–) 18.ab6 (18.Nd7?! Qd7 19.c3 Na6+=) 18...Qb6 (18...Qb7 19.Ra8 Be5 20.Re8 Be8 21.Be5+–) 19.Ra8 (19.Ra8 Be5 20.Be5 Nc2 21.Re8 Qe3 22.Qe3 Ne3 23.Rf8 Kf8 24.Ra1+–) 1–0. Chashchev,S (2310) – Kvasova,Nika, Doroshkevich mem, Maykop RUS, 2008.

3.Bb2 (--> 1.b4 c6 2.Bb2 Qb6 3.Nf3).

3.c3 d5 4.d4 Bf5 5.Nbd2 e6 6.Bb2 Bd6 7.g3 Nf6 8.Bg2 Nbd7 9.e3 0–0–/+ 10.0–0 Qc7 11.a4 Ne4 12.a5 Nd2 13.Qd2 e5 14.de5 Be5 15.Ne5 Ne5=+ 16.f4 (16...Nc4 17.Qf2–/+; 16.Qd4!? Nc4 17.Bc1=+). I need chocolate... – FatMaHa, ChessWorld.net, 2005.

3.a3 a5

4.ba5 Ra5 5.Nc3 d5 6.e3 Nf6 7.Be2 Nbd7 8.d4 e6 9.0–0 Bd6 10.Rb1 Qc7 11.a4 Ne4 12.Bd2 Nc3 13.Bc3 Ra4 14.h3 0–0 15.Bd3 e5 (better is 15...b5!?–/+) 16.de5 Ne5 17.Bh7 (17.Ne5!? Be5 18.Bh7 Kh7 19.Qh5 Kg8 20.Be5=) 17...Kh7+= 18.Ng5?? (better is 18.Ne5 Rh8 19.Nf3+=) 18...Kg8–+ 19.Qh5 Bf5 20.f4 Bg6 (better is 20...Nc4 21.Rbe1 Re8 22.Bd4–+) 21.Qe2 Nc4 22.f5 Be7 23.Ne6 fe6 24.fg6 Qg3 25.Rf8 Bf8 26.Qh5 Qe3 27.Kh2 Qh6 28.Qh6 (28.Qg4 Bd6 29.Kh1 Ra8 30.Qe6 Kh8–+) 28...gh6 29.Rb7 e5 30.Be1 Bd6 31.Rh7 Ne3 32.g4 (32.Rd7 Bf8–+ (worse is 32...Nc2 33.Bg3 Bf8 34.Be5–+)) 32...e4 33.Kg1 Bc5 34.Kh2 Ra2 35.Bh4 (35.Bg3 Rc2 36.Kh1 Rc1 37.Kh2 Nf1 38.Kg2 Ng3 39.Kg3–+) 35...Rc2 36.Kh1 Nf1 (36...Rc1 37.Kh2 Bd6 38.Bg3 Rc2 39.Kh1 Bg3 40.Rh8 Kh8 41.g7 Kg7 42.Kg1 Rc1) 37.Bf6 0–1. Jaskulski,Klaus (1865) – Brauer,Christian (2120), Berlin Unicorn op, 2008.

4.Bb2 ab4 5.Bd4 c5 (5...Qc7!?=) 6.Bc5!–/+ Qf6 (6...Qc5 7.ab4) 7.Bd4 Qc6 8.ab4 Ra1 9.Ba1 Qa4 10.Bd4 Nc6 11.c3 Qa2 12.e3 d6 13.Bb5 e5 14.Bb6 g6 15.d3 Bg7 16.0–0 Qe6 17.e4 Nge7 18.Bc4 d5 19.ed5 Nd5 20.Qb3 Nce7 21.Bc5 0–0 (21...Qd7 22.Be7 Ne7+–) 22.Be7 Qe7 23.Bd5 Kh8 24.Re1 f5 25.Nbd2 h6 (25...Rd8 26.c4+–) 26.Nc4 e4 27.de4 fe4 28.Ncd2 Bf5 (29.Be4 Qd7+–) +–. themonkey (2110) – condan16 (2020), GameColony.com, 2002.

4.c3 ab4 5.cb4 Nf6 6.e3 =+.

4.c3 e6 5.e3 ab4 6.Qb3 bc3?? (better is 6...Qa5+=) 7.Qb6+– 1–0. Kappel,Ray – Zeidan,Mohammad, 37. LSS No Engine Cup Preliminary, 2011.

4.c3 Nf6 5.d4 d5 6.e3 Bf5 7.Be2 e6 8.Bd2 h5 9.h3 Nbd7 10.0–0 Ne4 11.Nh4 Bh7–/+ 12.Bh5? Nef6 13.Bf7? Kf7 14.Nf3 Ne4 15.Nh2 Bf5 16.Ng4 Bd6 17.Qf3 Rh4 18.Rc1 Ng5 19.Qe2 Bg4 20.hg4 Rah8 21.f4 Ne4 (22.g3 Rh1 23.Kg2 R1h2 24.Kf3 Re2 25.Ke2 Qa6 26.c4 ab4–+) 0–1. chessotka – Garfield85 (1820), internet, 2006.

3.a3 d5

4.Bb2 a5 5.Bd4 Qd8 6.Nc3 ab4 7.ab4 Ra1 8.Qa1 e6 9.e4 Bb4?? (Better is 9...f6 10.Qa5 Qa5 11.ba5 c5=) 10.Bg7+– (10...Nf6 11.Bh8 Ne4 12.Bd3+–) 1–0. b4_player (1940) – Didier (2140), GameColony.com, 2002.

4.e3 Bg4 5.Be2 Nf6 6.Bb2 a5 7.Bd4 Qc7 8.Be5 Qb6 9.ba5 Qa5 10.0–0 Nbd7=+ 11.Bg3 e6 12.d3 Be7 13.Nbd2 0–0 14.Nb3 Qc3 15.Nfd4= Be2 16.Ne2 Qb2 17.Qd2 Ra3 18.Rab1 Rb3 19.Rb2 Rb2 20.Ra1 Rb6 21.Bc7 Ra6 22.Ra6 ba6 23.Qc3 c5 24.Qb2 Rc8? 25.Qb7+/– Rf8 26.Qa6 e5 27.c4 d4 28.f4 e4 29.de4 d3? 30.Nc3 d2 31.e5 Ne4 32.Nd1 f5 33.Qe6 (33...Rf7 34.Qd7+–) 1–0. oldsage – RageofKlugman, ChessWorld.net, 2006.

3.a3 Nf6

4.e3 d5 5.Nc3 Bf5 6.Bb2 a5 7.Na4 Qc7 8.Nc5 ab4 9.ab4 Ra1 10.Qa1 b6 11.Na6 Na6 12.Qa6 e5? 13.d3?? Bd6 14.Qa8+= Qb8 15.Qc6 Bd7 16.Qc3+/– e4 e5 seems the pivot of the position 17.Ne5 (17...Ba4 18.Ng4 Ng4 19.Qg7=). dugmak – FatMaHa, ChessWorld.net, 2005.

2.Nf3 d5

(--> 1.b4 d5 2.Nf3 c6).

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

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

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

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

3.a3 Nf6

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

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

3.Bb2

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

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

3.Bb2 f6 4.e3 e5 5.a3 Be6 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Be6 5.Nf3 c6).

3.Bb2 f6 4.e3 e5 5.b5 Be6 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3 c6).

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

3.Bb2 Nf6

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

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

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

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

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

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

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

3.e3 e6

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

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

3.e3 Bf5

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

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

2.Nf3 e6

3.a3 d5 4.Bb2 a5 5.e3 ab4 6.ab4 Ra1 7.Ba1 Nf6 8.b5 Bd6 9.Be5 Be5 10.Ne5 Nbd7 11.Nf3 (11.Nd7 Bd7 12.bc6 bc6=) 11...e5 12.Be2 (12.d4 Qa5 13.c3 e4=) 12...0–0 (12...e4 13.Nd4 c5 14.Nb3=) 13.0–0 (13.d4 e4 14.Nfd2 Qb6=) 13...e4 14.Nd4 c5 15.Nb3 c4 (15...Qb6 16.f3=) 16.Nd4 Ne5 17.Nc3 Qd6 18.f4 ef3 19.Bf3 Bd7 (19...Re8 20.h3=) 20.Qe2 Ra8 21.Qf2 (21.h3 Be6=) 21...Nf3 22.Qf3 Qe5 23.Qf2 Ra3 24.Qf4 (24.Qh4 b6=) 24...Qf4 25.ef4 Kf8 26.Re1 h6 (26...h5 27.h3=) 27.h3 Ra8 28.g4 h5 29.g5+= Re8 30.Ra1 Ne4 31.Nd5 Bh3 32.Ra3 Bg4 33.d3= cd3 34.Rd3 Nc5 35.Re3 Rd8 36.c4 h4 37.Nf3 h3 38.g6 (White fights for the Initiative) 38...f6 39.Nd4 Ra8 40.Nc7 Rc8 41.b6+= Nd7 42.f5 Ne5 43.c5 Rb8 44.Nce6+/– Kg8 45.Ra3+– Kh8 46.c6 bc6 47.b7! Nd7 48.Ra8 h2 49.Kh2 c5 50.Nc5!! Bf3 51.Nf3 Rf8 52.Nd7 Rg8 53.Rg8 Kg8 54.b8Q# 1–0. mrkt (2325) – Spork (2505), ICC, 2003.

3.c3 Nf6 4.e3 Be7 5.Be2 c5 6.bc5 Bc5 7.0–0 0–0 8.d4 (8.d4 Be7 9.c4=). Zyryanov,Pavel (1700) – Vasquez,Carlos, FICGS, 2006.

3.Bb2

3.Bb2 (--> 1.b4 e6 2.Bb2 c6 3.Nf3).

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

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

2.Nf3 Nf6

(--> 1.b4 Nf6 2.Nf3 c6).

3.a3 e6 4.e3 h6 5.Bb2 d5 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6 5.a3 h6).

3.Bb2 Qb6 4.a3 d5 5.e3 e6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 e6 5.a3 Qb6).

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

3.Bb2 d5 4.e3 a5 5.b5 (--> 1.b4 c6 2.e3 a5 3.b5 d5 4.Bb2 Nf6 5.Nf3).

3.Bb2 d5 4.e3 Bg4 5.c4 Nbd7 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.c4 Bg4 5.Nf3 Nbd7).

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

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

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

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

3.e3 d5 4.Bb2 a5 5.b5 (--> 1.b4 c6 2.e3 a5 3.b5 d5 4.Bb2 Nf6 5.Nf3).

2.g3 d5

3.a4 Na6 4.b5=+ Nc5 5.Ba3 Na4–/+ 6.Nc3? Nb6 7.e3 Nf6 8.Rb1 a6 9.bc6 bc6 10.Bc5 Bg4?? 11.Be2?? Nbd7 12.Na4 Qa5 13.Nb6 Nb6 14.Bb6–/+ Qb6?? 15.Rb6+– Bd7 16.Qb1 Rc8 17.Ra6 Ne4 18.Rb6 h5 19.Rb8 Nf6 20.Ba6 Rd8 21.Rd8 Kd8 22.Qb6 Ke8 23.Qb8 (23...Bc8 24.Qc8#) 1–0. kalaidoskop@ – kromm@, mySchach.de, 2005.

3.a4 e5 4.Bb2 f6 5.b5 =+.

3.Bb2 (--> 1.b4 c6 2.Bb2 d5 3.g3).

3.Nf3 Nd7 =+.

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

3.Bg2 e5 4.e4 (4.a3 Qf6=+) 4...d4 (4...Bb4!? 5.Bb2 d4–/+) 5.a3 a5 6.Bb2 (6.Nf3 Bg4=+) 6...ab4–/+ 7.ab4 Ra1 8.Ba1 Bb4 9.c3 Bc5 10.Nf3 f6 11.0–0 (11.cd4 ed4 12.0–0 Be6–/+) 11...Bg4 (11...d3 12.Bb2–/+) 12.Qb3 Qd7 (12...Qb6 13.Qc2–/+) 13.Qa4 (13.cd4!? Bd4 14.Nd4 ed4 15.Qc4=+) 13...Bf3 14.Bf3 Ne7 15.Bd1 d3 16.Bb2 0–0?? (better is 16...b5 17.Qb3 Na6–/+) 17.Qc4+– Kh8 18.Qc5 Na6 19.Qc4 b5 20.Qb3 c5 21.Na3 c4 22.Qb5+/– Qb5 23.Nb5 Rb8 24.Ba4?? h5?? 25.Ba3+– Nc8 26.Nd6 Nd6 27.Bd6 Rc8 28.Bb5 Nc5 29.Bc5 Rc5 30.Rb1 g6 31.Rb4 f5 32.ef5 gf5 33.Bc4 e4 34.Bf7 Kg7 35.Bh5 Kf6 36.h4 Ke5 37.Bd1 Rc7 38.Rb5 (38...Ke6 39.Bb3 Kf6 40.Rb6 Kg7 41.h5+–) 1–0. fantom – super knight, internet, 2006.

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

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