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(c) Marek Trokenheim

1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6

(...)

4.a3 0–0?? 5.ab4 d6 6.Bb2 Nc6 7.b5 Ne7 8.Bf6 gf6 9.Nf3 Bd7 10.e4 Kh8 11.Nc3 b6 0–1. marcosr – bar (1965), net–chess.com, 2005.

4.a3 Bd2?? 5.Nd2+– Nd5? (5...Nc6 6.Bb2 d6+–) 6.Ne4 0–0 (6...d6 7.Bg7 Rg8+–) 7.Qd5 Nc6 8.Bc3 d6 9.Nf3 Be6 10.Qb5 Ne5 (10...Rb8 11.Neg5 Qd7 12.Qd3+–) 11.Ne5 de5 (11...c6 12.Qb7 de5 13.Qc6 Rc8+–) 12.Qe5 f6 13.Qe6 Kh8 14.e3 Re8 15.Qg4 Rf8 16.Rd1 Qe7 17.Rd7 Qa3 18.Qg7# 1–0. zsedwardson (1955) – interloper, ChessWorld.net, 2011.

4.a3 Ne4?? 5.ab4+– d6 6.Bg7 Rg8 7.Bd4 b5 8.g3 a6 9.d3 Ng5 10.h4 Ne6 11.Bc3 d5 12.Bg2 c5 13.d4 c4 14.Nf3 Nc7 15.Ne5 f6 16.Nf3 Bg4 17.Nh2 h5 18.Nd2 f5 19.f3 (19.f3 f4 20.fg4 fg3 21.Nhf1 Rg4 22.Rh3+–) 1–0. wee harv – crome, ChessWorld.net, 2005.

4.a3 Qe7 5.Bb2 Bc5 6.d4 Bb6 7.Nd2 d5 8.e3 Nc6 9.Ngf3 Bg4 10.Be2 0–0 11.0–0 Ne4 12.Ne4 Qe4 13.h3 Bf5 14.Ne1 Rfe8 15.Bd3 Qe6 16.Bf5 Qf5 17.Qd3 Qh5 18.Qd1 Qd1 19.Rd1 Na5 20.Nf3 Nc4 21.Bc1 Re6 22.Nd2 Rc6 23.Nc4 Rc4 24.Rd2 Ba5 25.Re2 Re8 26.Bb2 h6 27.Rc1 Bc3 28.Bc3 Rc3 29.Ra1 Re6 30.Kf1 Ra6 Attacks the isolani on a3 31.Rd2 (31.a4!?+=) 31...Raa3–/+ (31...Raa3 32.Rdd1 b5–/+) 0–1. von Rosenberg,Clemens – Gurgui,Dan_Constantin, IECC, 2013.

4.a4 Qe7 5.Bc7= 0–0 (5...d6 6.Bb8 Rb8 7.c3=) 6.c3+= Bd6 (6...Na6 7.Bg3 Ba5 8.Nf3+=) 7.Bd6 Qd6 8.e3 Nc6 9.Nf3 b5? (Better is 9...Qe7+=) 10.ab5+– Ne5 11.d4 Ng6 12.c4 Ne4 13.c5 Qf6 14.Qc2 Re8 15.Bd3 Ng5 16.Ng5 Qg5 17.Be4 Rb8 18.Nc3 Bb7 19.c6 dc6 20.bc6 Bc8 21.c7 Rb6 22.Ra7 1–0. NN – NN, 2002.

4.Bb2 Bc5 5.d4 Bb6 6.e3= Ba5 7.Bc3 b6 8.Ba5+/– ba5 9.Nc3 0–0 10.Nf3 Nc6 11.Bc4 d5+= 12.Bb5 Bb7 13.0–0 a6 14.Bd3 Nb4 15.a3 Nd3 16.Qd3 Re8 17.Ng5 Ne4 18.Nge4 de4 19.Qc4 Bc8 20.Qa4 Bd7 21.Qa5 Bc6 22.Qf5 Qh4 23.g3 Qf6 24.Qf6+– gf6 25.Rab1 Rab8 26.Rb8 Rb8 27.d5 Bb7 28.Rb1 a5 29.Ne4 Kg7 30.Nc5 1–0. Wall,Bill – Wall,Jonathan, Palm Bay, FL, 2002.

4.Bc3 a5 5.a3 Bc3 6.Nc3 d5 7.d4 0–0 8.e3 Bf5 9.Ra2 Nbd7 10.g3 c6 11.Bh3 Bh3 12.Nh3 Nb6 13.0–0 Nc4 14.Qe2 Re8 15.Nd1 Ne4 16.c3 Qd6 17.a4 Re7 18.f3 Nf6 19.e4 b5 20.Nb2 Nb2 21.e5 Qd7 22.Qb2= Qh3 23.ab5? Ne8–+ 24.bc6 Rc7 25.Qb5 Qe6 26.Rfa1 Qc6 27.Qb3? Rca7 28.Rc1 a4 29.Qb4 Rb7 30.Qc5 Qc5 31.dc5 Rc7 32.Ra3 Rc5 33.Kf2 d4 34.c4 Re5 35.c5 Re3 36.Ra2 Rc3 37.Re1 Kf8 38.Re4 Rc5 39.Rd4 Nc7 40.Rda4 Ra4 41.Ra4 Rc2 42.Kg1 Ke7 43.h4 Kf6 44.Rf4 Ke7 45.Re4?? Ne6–+ 46.f4 f5 47.Re5 Kf6 48.Rd5 Re2 49.Kf1 Re4 50.Rd6 Kg6 51.Kg2 Kh5 52.Kh3 Re3 53.Rd5 Nf4 (54.Kh2 Nd5–+) 0–1. KlausMueller – Melton, HCL–A1051 playchess.de, 2003.

4.c4 a6 5.a3 Ba5 (5...Be7 6.d4 d6 7.Bf4 Bf5 8.e3=) 6.e3 Nc6 (6...d6 7.Bc3 c6 8.d4=) 7.Bb2 0–0 (7...d6 8.Nf3= (8.Qf3=)) 8.Qf3 d6 (8...Ne8 9.Bd3=) 9.Bf6 gf6 10.Qd1 (10.Kd1 Ne5 11.Qg3 Kh8=) 10...Qe7 11.Nf3 Kh8 12.Bd3 Rg8 Black gets the initiative 13.Nh4 (13.0–0 Ne5 14.Be4 f5+=) 13...Ne5+= 14.Bc2 (14.Be2 f5 15.g3 Nc4+=) 14...Nc4 15.Qh5 Rg7 16.Nc3?? (better is 16.Nf5 Bf5 17.Bf5–/+) 16...Bg4 (better is 16...Bc3 17.dc3 Ne3 18.fe3 Qe3 19.Qe2 Qc3 20.Kf2 Qd4 21.Qe3 Qh4 22.g3 Qg5–+) 17.Qd5? (17.Qh6 Nd2! 18.Kd2–+) 17...Bc3 18.dc3 (18.Qb7 Ne3! 19.Be4 Ra7–+) 18...Ne3! 19.fe3 (19.Qd3 Nc2 20.Kd2 Na1 21.Ra1–+) 19…Qe3 (19...Qe3 20.Kf1 Be2 21.Ke1 Bd3 22.Kd1 Qe2 23.Kc1 Qc2#) 0–1. Merten,Rainer – Gross,Wilhelm, xv/18, 1987.

4.c4 b6 5.e3=+ Bb7 6.Nf3 d6 7.Bb2= Ne4 8.a3 Ba5 9.Bg7 Rg8 10.Bb2 Nd7 11.Qc2 Ndc5 12.Nc3 Qd7 13.Nd5 Na4?? 14.Qe4+– Kf8 15.Bd4 Bd5 16.cd5 f5 17.Qb1 Re8 18.Bb5 c6 19.Ba4 Rc8 20.Bc6 Qf7 21.Rg1 Rg4 22.Qb5 f4 23.h3 Rg6 24.e4 Qe7 25.Qd3 Qc7 26.Nh4 Rg8 27.Qf3 Qf7 28.Nf5 (28…a6 29.Nd6 Bd2 30.Kd2 Rc6 31.Nf7+–) 1–0. Waibel,Ulrich – Von Itter,Ingo, compuserve, 1995.

4.c4 Ng4 5.Bg7+/– Rg8 6.Bb2 Nc6 7.Nf3 d5 8.h3 (8.cd5 Qd5 9.Nc3 Qa5+/–) 8...Nf6 9.cd5 Nd5 10.Qc2 Ba5 (better is 10...Rg6!?+/–) 11.Qh7+– Rf8? (better is 11...Nde7+–) 12.Bg7 1–0. Janek – AxelG, internet, 2017.

4.Bd4 c5 5.Be3 0–0 6.c3= Ba5 7.Bc5 d6 8.Bd4 Nc6 9.Be3 Be6 10.Nf3 h6 11.Nh4 Nd5 12.Nf3 Ne3 13.de3 Rc8 14.a4 Qb6 15.Nbd2? Bc3–+ 16.Rc1? Ne7?? 17.g3 Bb3 18.Rc2?? Bc2 19.Qc2 Bd2 20.Qd2 Qb1 21.Qd1 Rc1 22.Qc1 Qc1# 0–1. kurt5561 – theblizzard, ChessWorld.net, 2005.

4.Bd4 d5 5.c3 Be7 6.e3=+ Ne4 7.g3 h5 8.f3 Ng5 9.Bg7+= Rg8 10.Be5 a6 11.f4+/– Ne4 12.d3 Bg4 13.Qc2 Nc5 14.d4 Ne4 15.a3?? f6–/+ 16.h3?? fe5?? 17.hg4=+ Ng3 18.Rh3 Rg4–/+ 19.Nd2 ef4–+ 20.e4? Bg5 21.Bd3? de4 22.Bc4? e3 23.Nb3 Qe7 24.Nc1? Ne4 25.Nf3 Rg3 26.Rg3+= Ng3 27.Qg6+– Kd8 28.Ne5?? Nd7?? 29.Nf7+/– Kc8 30.Qg8 Nf8 31.Ng5 b5 32.Be6 Kb7= 33.Bd5 c6 34.Bf3 Nd7?? 35.Qg6?? Rc8 36.Nb3 h4 37.Rb1 Nf8 38.Qf5?? Nf5–+ 39.Nc5 Ka7 40.Nge4 h3 41.Rb2 Qh4 42.Kd1 h2 43.Rb1 e2 44.Ke2 Ng3 45.Kd3 h1Q 46.Rh1 Nh1 47.Bh1 Qh1 48.a4 Qh3 49.Kc2 ba4 50.Nd6 Qg2 51.Kd3 Qf1 52.Kc2 Qe2 53.Kb1 Rb8 54.Ncb7 Rb7 55.Kc1 Rb2 56.Nf5 Qc2# (56...Qd2#) 0–1. kurt5561 – wee harv, ChessWorld.net, 2005.

4.Bd4 Nd5 5.c3 Bd6 6.e3 Qg5 7.g3 0–0= 8.f4 Qf5 9.d3 c5 10.e4 Qe6 11.f5 Qe7=+ 12.Qg4?? Nb6 13.Qg7# 1–0. kurt5561 – crome, ChessWorld.net, 2005.

4.Bd4 Bd6 5.g3 c5 6.Be3 Nc6 7.f4 Qb6 8.c3?? Qb2–+ 9.Na3 Qa3 10.Nf3 0–0 11.h4 c4 12.d3 Qc3 13.Bd2 Qa3 14.h5 Bb4 15.Rh2 Bd2 16.Qd2 d5 17.h6 gh6 18.Rh6 Kg7 19.Rh4 Bg4 20.Nh2 h5 21.f5 b5 22.e4?? de4 23.Qg5 Kh8?? 24.Qf6+– Kh7 25.Ng4 Rh8 26.Rh5 (26.Rh5 Kg8 27.Rh8#; 26.Qf7#) 1–0. kurt5561 – Manners, ChessWorld.net, 2005.

4.e3 Nd5 5.Bg7+/– Rg8 6.Bb2 a5 7.Qh5 Bd2?? 8.Nd2+– d6 (8...Qg5 9.Qh7 Qg6 10.Qg6 Rg6+– (10...fg6?? 11.Bc4 c6 12.Ne4+–)) 1–0. coolerdude – wee harv, ChessWorld.net, 2005.

4.e3 Ne4 5.Qg4 d5 6.Qg7+– Rf8 7.Nc3 f6 8.Bc7+– Qd7 9.Qd7 Bd7 10.Ne4 Na6? 11.Ba6 ba6 12.Rb1 Be7 13.Nd6 Bd6 14.Bd6 Rc8 15.Bf8 Kf8 16.c3 Bf5 17.Rb2 (17.Rb2 Ke7 18.Rb7 Kd6 19.Ra7+–) 1–0. Schellen,Anton – Selby,Martin, FICGS, 2006.

4.e3 Rf8 5.Nf3 Nc6 6.Bc3 b6 7.Bb4+= Nb4 8.a3 Nc6 9.Nc3 Bb7 10.Bd3 g6 11.0–0+= Qe7 12.a4 d5 13.Bb5 a5 14.Nd4+/– Qd6 15.Bc6 Bc6+= 16.Nc6 Qc6 17.Nb5 Qd7 18.Qf3 Ne4 19.d3+– c6 20.de4 cb5 21.Rfd1 ba4 22.Rd5 Qe6 23.Ra4 Rc8 24.Rad4 f6 25.Rd6 Qe5 26.Qh3 (26.Qh3 f5 27.Qh7+– (27.Rb6?! Rc2 28.Rd1 Rf7+–)) 1–0. gtate (1910) – jearly (1945), net–chess.com, 2006.

4.e4 Ne4 5.Bc4?? (better is 5.Qg4 d6 6.Qg7=) 5...Qe7–+ 6.Nf3 d6 (6...Nc6 7.c3 Ne5 8.Ne5 Qe5 9.Qe2–+) 7.0–0?? (better is 7.Qe2 Nd2 8.Nbd2 de5 9.Ne5–/+) 7...de5–+ 8.Re1 Bf5 (better is 8...Nf2 9.Qe2 Ng4 10.h3–+) 9.d3?? (9.Bd5 Nf2! 10.Kf2 Qc5 11.Kg3–+) 9...Be1 10.Qe1 (10.de4 Bf2! 11.Kf2 Qc5 12.Ke1 Be4–+) 10...Nd6 11.Ne5 Nc4 12.dc4 f6 13.Nf3 Qe1 14.Ne1 0–0 15.Nc3 Nc6 16.Nd5 Rac8 17.Nf3 Be4 18.Nd2 Bd5 19.cd5 Nb4 20.c4 Nc2 21.Rc1 Na3 22.Rc3 Rfe8 23.Ra3 Re1 24.Nf1 Rc1 25.g3 Re8 26.Kg2 Rc4 27.Ne3 Re3 28.fe3 a6 29.Rb3 b6 30.Kf3 Kf7 31.e4 Ke7 32.g4 g5 33.a3 Kd6 34.Re3 Ke5 35.h3 h6 36.a4 Ra4 37.Rc3 Kd6 38.Rc6–/+ Ke5 39.Re6?? Kd4–+ 40.Rf6 Ra3 41.Kf2 Ke4 42.Rh6 Kd5 43.Rh5 Kd4 44.Rg5 Rh3 45.Rg7 c5 46.Rg6 Rb3 47.Rh6 c4 48.g5 c3 49.g6 c2 50.g7 c1Q 51.Rd6 Kc5 52.Rd8 Qe3 53.Kg2 Qf3 54.Kh2 Qg3 55.Kh1 Rb1 56.Rd1 Rd1 0–1. nizinna – koteczkowy56, kurnik, 2011.

4.f3 Nc6 5.Bg3 d5 6.e3 0–0 7.Bb5 Ne7 8.Ne2 Nf5 9.Bf2 Nd6 10.Bd3 c5 11.c3 Ba5 12.a4 Bc7 13.Na3 a6 14.c4 dc4 15.Nc4 Nc4 16.Bc4 b6 17.0–0 Bb7 18.Bh4 Be5 19.Rb1 Re8 (19...Qd6 20.Ng3+=) 20.Rf2 (20.Qb3 Bd5 21.Bd5 Qd5 22.Bf6 c4=) 20...h6 (20...Bc8!?=) 21.f4 Bc7 22.Qb3 Qe7 23.Ng3 Qd7 24.Bf6 gf6 25.Qc2 Rad8?? (better is 25...Qg4+/–) 26.Qg6+– Kf8 27.Qf6 Bd5 (27...Bc8+–) 28.Bd5 Qd5 29.Nf5 (29.Nf5 Qf5 30.Qf5+–; 29.Qh6?! Ke7+–) 1–0. aspasio – cristero, net–chess.com, 2013.

4.Bf4 d5 5.c3 Bd6 6.Bd6 Qd6 7.a3 0–0 8.Qc2 Bg4 9.a4 Bd7 10.g3 b5 11.ab5 Bb5 12.Qb3 Bd7 13.Bh3 a5 14.Nf3 Bh3 15.Ng5 Bf5 16.e4 de4 17.d3 ed3 18.f4 Qe7 19.Kd2 Qe2 20.Kc1 h6 21.Nf3 Qf3 22.Rd1 Qe3 23.Nd2 Bg4 24.Rh1 Ne4 25.Ra2 Nd7 26.Qc4 Ndc5 27.h4 Be6 28.Qb5 Ba2 29.Rh2 Qg1 30.Kb2 Rfb8 31.c4 Na4 32.Ka2 Nec3 33.Kb3 Qd1 34.Ka3 Qc1 35.Kb3 Qb2 0–1. Chad's Chess V015 – 31337–30, computer chess game, 2001.

4.Bf6 gf6 5.c3 Bc5 6.d4 Bd6 7.e3 c5 8.d5 b6 9.e4 Ba6 10.Ba6+/– Na6 11.c4?? Rg8 12.Nc3 Rg2 13.Nge2 Be5 14.Rc1 Bc3 15.Nc3 f5 16.e5 Qh4 17.Nb5?? Qf2# 0–1. crome – Manners, ChessWorld.net, 2005.

4.g3 b6 5.Bg2 Nc6 6.Nc3 0–0 7.Bf6 Qf6 8.Nd5 Qd6 9.c3 Ba3 10.d4 Bb7 11.e4 Rac8 12.Ne2 Rfe8 13.0–0 Ba6 14.Re1 Bc4 15.Ne3 Be2 16.Re2 Qf6 17.Qb3 Bf8.

4.g3 c6 5.Nf3 d5 6.Nc3 0–0 7.e3 Nbd7 8.a3 Bc5 9.Bd4 Bd6 10.Be2 Qe7 11.Qc1 Re8 12.Qb2 c5 13.Bf6 Nf6 14.Nb5 Bb8 15.0–0 b6 16.Rfb1 Bf5 17.Nc3 Bd6 18.Nb5 c4 19.Nd6 Qd6 20.Nd4 =.

4.Bg3 Nc6 5.c4 d6 6.Qb3 Be6 7.Nc3 Bc3 8.Qc3=+ 0–0 9.Bh4 Ne5 10.e3 Ng6 11.Nf3?? Nh4–+ 12.Nh4 Ne4 13.Qb3 Qh4 14.g3 Qe7 15.Qb7 Nc5 16.Qg2 Rfd8 17.d4 Nb7?? 18.Qb7+= Rdb8 19.Qa6 Rb6 20.Qa4 Rab8 21.Be2 Rb1 22.Rb1 Rb1 23.Bd1 Bg4 24.0–0+= Bh3 25.Re1 Qe4 26.f3+/– Qe7 27.Qc2 Rb8 28.d5 Bd7 29.e4 g6 30.Qc3 Qe5 31.Qe5 de5 32.Bb3 c6 33.h4 h5 34.c5 Rb5 35.Rc1 Kg7 36.d6 Kf6 37.Rc3 Rb8 38.a4 Be6 39.Be6 Ke6 40.Rd3 Kd7 41.f4 ef4 42.gf4 Rb4+= 43.a5 Re4 44.Rb3+= Kc8 45.a6+/– Ra4 46.d7 Kd7= 47.Rb7 Ke6 48.Ra7 Ra5 49.Ra8 Kf5–/+ 50.a7 Kf4–+ 51.Kf2 Kf5 52.Ke3 Kf6 53.Kd3 Ke7 54.Kc3 Kd7?? 55.Kb4 Ra1 56.Rf8 Rb1 57.Ka3 Ke6 58.Ka2 Rb5 59.a8Q Rc5 60.Qe8 Kf5 61.Rf7 Kg4 62.Qd7 Kh4 63.Qe7 Rg5 64.Rf4 Kg3 65.Qg5 (65.Qg5 Kh3 66.Rh4#) 1–0. pinecrest1981 – dahmer, Live Game Caissa's Web, 2005.

4.g4 Nc6 5.Nf3 d6 6.a3 de5 7.g5 Bc5 8.Ne5 Ne5 9.gf6 Qf6 10.d4 Bd4 11.Qd4 Nf3 (11...Nf3 12.ef3 Qd4–+ 13.c3 Qe5 14.Be2 Bf5 15.f4 Qe7 16.Rg1 Bd3–+) 0–1. Weber,Roger – Vorobev,Pavel (1700), FICGS, 2006.

4.g4 Bf8 5.g5 Ne4 6.h4 f6 7.gf6 Nf6 8.Bg2 d5 9.Nf3 Nc6 10.Bb2 Be7 11.h5 h6 12.c4 dc4 13.Qc2 Be6 14.Qg6 Kf8 (14...Bf7!? 15.Qf5 Qd7 16.Qd7 Kd7–/+) 15.Nc3 Bf7 16.Qc2 Nh5 17.0–0–0 Nf4 18.Bf1 a6 19.Ne4? (19.Qf5 Bd6 20.Ng5 Qe8–/+ (20...Qg5?! 21.Qg5 hg5 22.Rh8 Bg8 23.e3+=)) 19...b5 (better is 19...Nb4!? 20.Qb1 Qd5 21.Rg1–+) 20.Rg1 Nh5 21.d3? (better is 21.Kb1!?–/+) 21...Nb4–+ 22.Qb1 cd3 23.ed3 Nd5 (better is 23...Na2 24.Kd2 Bd5–+) 24.Ne5 Qe8 25.Nf7 Qf7 26.Be2 Nhf6 27.Nf6 Bf6 (worse is 27...gf6 28.Bf3–/+) 28.Bf6 Qf6 0–1. Loktaev,Vlad – Lonyuk,Bohdan, SF–2011–0–00088, 2011.

4.h4 0–0 5.e3 Re8 6.Bf4 d5 7.c3 Bd6 8.Ne2 Nc6 9.a4 Bf5 10.Bd6 Qd6 11.Ng3 Bg4 12.Be2 Be2 13.Qe2 Ne4 14.Rh3 Nc5 15.Kf1 d4! 16.cd4 (16.cd4 Nd4; 16.ed4 Re2 Pinning (16...Re2 Deflection)) 16...Nd4! 17.Qc4 (17.ed4 Nb3 Double attack (17...Re2 Pinning; 17...Re2 Deflection; 17...Nb3 Decoy)) 17...Ndb3 18.Ra2 Na5 19.Qe2 Ne6 20.Nh5 Kh8 21.Nc3 Nb3 22.Qd1 Qd3 23.Kg1 Nbc5 24.f4 Rad8 25.Qf3 (25.Qc2 Qg6 26.Qg6 hg6+=) 25...f5 (25...Nb3 26.Qb7 Nd2 27.Qb2–/+) 26.Kh2 (26.Ng3!?+=) 26...Nb3–+ 27.Qb7 Nd2 28.e4 Qd4 29.Ra1 g6 30.ef5 Nc5 31.Qc7 gh5 32.Qa7 Rc8 33.Qf7 Qf4 34.Kg1 Rf8 35.Qh5? Ncb3 36.Ne2 Qe5 37.Re1 Qc5 38.Kh2 Qf2 39.Rd1 Rf5 40.Qh6 Qe2 41.Rg3 Qe7 42.Re1 Qf6 43.Qe3 Nf1 44.Rf1 Rf1 45.Qb3 Qh4 46.Rh3 Qd4 47.a5 0–1. Larsen,Be (2460) – Lemos,D (2475), Club Argentino–Ruibal, Buenos Aires ARG, 2008.

4.a3 Bd6

5.Bb2 c5 6.e3 Nc6 7.Nf3 0–0 8.Bc4 (better is 8.d4=) 8...Qe8 (better is 8...Be7+=) 9.Bf6+/– gf6 10.0–0 Be5 (10...Ne5 11.Bd5+/–) 11.c3 (worse is 11.Ne5 fe5 12.Nc3 d6+/–) 11...f5 12.Re1 (12.d4!? cd4 13.cd4+–) 12...d6+/– 13.d4 cd4?? (better is 13...Bg7+/–) 14.ed4+– (14.cd4?! Bg7+/–; 14.Nd4?! Qe7+/–) 14...Be6 15.Be6 (15.Ne5?! de5 16.d5 Na5+/–; 15.de5?! Bc4 16.ed6 Qd7+–) 15...Qe6 16.de5 (16.d5 Qf6 17.dc6 bc6+–) 16...de5 17.Nd4! Nd4 (17...ed4 18.Re6 Pinning (18.Re6 Deflection)) 18.cd4 Rfd8 19.Qa4 (19.Qf3!? Rd4 20.Qb7 Qd5+–) 19...Rd4 20.Qb5 Rd7 21.Nc3 (21.Qe5?? Qe5 22.Nd2 Qc3–+) 21...Rad8? (better is 21...f6+–) 22.Re5 Qd6 23.Qe2 Qd4 24.Re8 Re8 25.Qe8 Kg7 26.Qe1 Qc5 27.a4 a5 28.Nb5 Re7 29.Qd2 b6 30.Rc1 Qe5 31.Qg5 Kf8 32.Rc8 Re8 33.Re8 Qe8 34.Qd2 Qe4 35.Qd1 h5 36.Qd8 Kg7 37.Qd4 Kf8 38.Qe4 fe4 39.Nd6 Ke7 40.Nc8 Kd7 41.Nb6 Kc6 42.Nc4 Kc5 43.Na5 Kb4 44.Nb3! f5 45.a5 Kb5 46.Kf1 Ka6 47.Ke2 f4 48.Nc5 Ka5 49.Ne4 1–0. Feiertag,Manfred (1770) – Korn,Lothar (1700), RSS7E easy–86, 2008.

5.Bd6 cd6 6.e3 Qe7 7.Nf3 Nc6 8.Nc3 d5 9.d4 d6 10.Bd3 0–0 11.0–0 Bg4 12.h3 Bh5 13.Be2 Ne4? 14.Nd5+/– Qd7 15.Qd3 Qe6?? 16.Nc7 Qe7 17.Na8 Ra8 18.d5 Bg6? 19.Qb5 Nc3 20.Qc4 Ne2 21.Qe2 Ne5 22.Ne5 de5 23.e4 Rd8 24.Rfb1 h6 25.c4 b6 26.a4 Qc5 27.g3 Qd4 28.Re1 Rc8 29.Rac1 f6?? 30.Kh2 Be4 31.Qe4 Qf2 32.Kh1 Qg3 33.Qf5 Rd8 34.Rg1 Qe3 35.Rg7 Kg7 36.Rg1 Qg1 37.Kg1 a6 38.Qg4 Kf7 39.Qe6 Kg6 40.Qb6 e4 41.Qd8 e3 42.Qe8 Kf5 (42...Kf5 43.d6 Kf4 44.d7 Kf3 45.Qh5 Ke4 46.Qd5 Kf4 47.d8Q e2 48.Qf6 Ke3 49.Qh6#) +–. Odin(Aesir) – esso78, ChessWorld.net, 2004.

4.c4 c5

5.e3 Nc6 6.Bb2 0–0 7.Nf3 Re8 8.g3 d6 9.Bg2 Be6 10.Qe2 Ba5 11.a3 Ng4 12.0–0 a6 13.d4 cd4 14.ed4 Bd5 15.Qd3 Be4 16.Qd1 Bf5 17.d5 Nb8 18.Nd4 Bd7 19.Nb3 Bb6 20.Bd4 Nh6 21.Nc3 Nf5 22.Bb6 Qb6 23.Rb1 Qc7 24.Qd3+= Re5 25.Rfe1 f6 26.Nd4 Nd4 27.Qd4 Bf5 28.Be4 Be4+= 29.Re4 Nd7 30.f4 Re4 31.Ne4 b6 32.a4 Rc8 33.Nd2 Re8 34.Kf2 Kf7 35.Re1 Re1 36.Ke1 Qc5 37.Qe4 Nf8 38.Qc2 Qb4 39.Qb3 Qa5 40.Ke2 Nd7 41.Ne4 Nc5 ½–½. hal1958 – GED, HCL–A1685 playchess.de, 2004.

5.e3 d5 6.Nf3 Nc6 7.Bc3 0–0 8.Qb3 Re8 9.cd5 Nd5 10.a3 Bc3 11.Nc3 Nc3 12.dc3 Bg4 13.Be2 Qc7 14.Rb1 b6 15.Qc2 Rad8 16.Ng5+= Be2 17.Qh7 Kf8 18.Ke2 Qe5 19.Qh5 Rd5?? 20.Qf7# 1–0. Fritz 10 – nn, internet, 2007.

4.c4 Bc5

5.e3 0–0 6.Nf3 d6 7.Bb2 Be6 8.Be2 Nc6 9.0–0 h6?? (better is 9...d5=) 10.d4+– Bb4 11.d5 Bf5 12.dc6 b6 13.h3 Be4 14.Nbd2 (14.Qa4!? Ba5+–) 14...Bc6 15.Qb3 Bd2 16.Nd2 a5 17.Bf3 Bf3 18.Nf3 Qd7? (18...Re8+–) 19.Bf6 gf6 20.Qc3 Qe7 21.Nd4 Qe5 22.Qd3 Rfe8 23.Nb5 Rac8 24.Na7 Ra8 25.Nc6 Qc5 26.Nd4 a4?? (26...Qe5 27.Nf5 Qe4+–) 27.Rfb1 c6 28.Nf5 Re5 29.Nd6 Rd8 30.Rd1 b5? 31.cb5 cb5 32.Qb5! Rd6?? 35.Rad1 Kg6 36.Qg8 1–0. madik – papaupa, Gameknot.com, 2008.

5.e3 d6 6.Bc3 0–0 7.Qf3 Bg4 8.Bf6 Qf6 9.Qf6 gf6 10.Nc3 Ba3? (Better is 10...Kg7+=) 11.Nb5+– Bb2 (11...Bc5 12.Nc7 Nc6 13.Na8 Ra8+–) 12.Rb1 (12.Nc7 Ba1 13.Na8 Na6–/+) 12...Be5 13.Nc7 d5 14.Na8 dc4 15.Rb7 Rc8 (15...Nc6 16.f4 Bd6 17.Nc7+–) 16.f4 Bd6 17.h3 (Better is 17.Ra7 c3 18.dc3 Rc3+–) 17...Bh5 (17...Be6 18.Ra7 c3 19.dc3 Rc3 20.Kd2 Re3 21.Ke3 Bc5 22.Kd2 Ba7 23.a4+–) 18.g4 Bg6 19.f5 c3 20.dc3 Rc3 21.Kd2 Ra3 22.Bc4 Ra4 23.Bb3 Ra5 (23...Ra3 24.fg6 hg6 25.Nc7+–) 24.fg6 hg6 25.Rf7 Kh8 26.Nf3 Bb4 27.Ke2 Rc5 28.Nh4 Nc6 29.Ng6 Kg8 30.Ra7 Rc4 (30...Rd5 31.Bd5) 31.Bc4 1–0. marekt – Rey_Mysterio, Caissa's Web, 2004.

4.c4 Nh5

5.Qb3 Qg5 6.Nf3+/– Qe7 7.g4 Nc6+= 8.gh5 Ne5–/+ 9.Nd4 Qc5 10.e3 c6 11.Nc3 0–0 12.Be2 Bc3 13.Qc3= d6 14.h6+/– Bg4?? 15.hg7 Kg7?? 16.Rg1 h5 17.f4 Kh7 18.fe5 Qe5 19.Bg4 hg4 20.Rg4 Rg8 21.Rh4 Kg6 22.0–0–0 Rh8 23.Qd3 f5 24.Rg1 Kf6 25.Rf4 Rh5 26.Rgf1 Ke7 27.Nf5 Kd7 28.Nd6! Qa1 29.Kc2 Qa2 30.Kd1 Qa1 31.Ke2 Rh2 32.R1f2 Rf2 33.Rf2 Kc7 34.Rf7 Kb6 35.Rb7 Ka5+– 36.c5 Qa2 37.Rb5! Ka6 38.Rb2 Ka5 39.Ra2 Kb4 40.Qc4 (40.Qc3) 1–0. bentengutama (1965) – magilla (1905), net–chess.com, 2003.

5.Bg7?? Ng7–+ 6.e3? d5 7.Nf3 dc4 8.Bc4 Bg4 9.Qb3 Qf6 10.Nc3 Bf3 11.Qb4 Bc6 12.0–0 Nd7 13.Nd5 Bd5 14.Bd5–/+ Qb6 15.Qe4=+ Ne6 16.Rab1 Qd6 17.Rb7? Ndc5–+ 18.Bc6 Ke7 19.Qh4 Kf8?? 20.Rc7? Nc7–+ 21.Ba8 Na8 0–1. gtate (1915) – markgreen (1855), net–chess.com, 2004.

4.Bd4 Nc6

5.Be3 d6 6.c3=+ Ba5 7.Nh3 Bh3 8.gh3 0–0 9.Rg1=+ Ne5 10.Bf4 Re8 11.e3 Ng6 12.Bg3 c5 13.Na3 Qd7?? 14.Rb1 a6 15.Bg2 Re7?? 16.Nc4 Bd8 17.f3?? b5 18.Nd6 Bc7 19.Ne4 Ne4 20.fe4 Bg3 21.hg3=+ Rf8 22.g4 Ne5 23.Rc1?? Nd3–+ 24.Kf1 Nc1 25.Qc1 c4 26.Ke1 Qd6 27.d4? cd3 28.Kf2 Rc8 29.Rd1 Rec7 30.Bf1 Rc3 31.Qd2 Rc2 32.Qe2 Re2 33.Be2 Rc2 34.Rd3 Qd3 35.Kf3 Qe2 36.Kf4 Qf2 37.Ke5 Rd2 38.g5 Qg3 39.Kf5 Rf2# 0–1. kurt5561 – Castlegrande, ChessWorld.net, 2005.

5.Be3 Ng4–/+ 6.Bf4? Qf6–+ 7.g3 Qa1 8.c3 Bc5 9.e3 d5 10.h3 Nf6 11.Nf3 Bf5 12.d3 0–0–0 13.Nfd2 Qa2 14.Rh2 Nh5 15.g4 Nf4 16.ef4 Rhe8 17.Be2 Bd3 18.f3 Be3 19.Kf1 Bf4 20.Rg2 Be2 21.Re2 Re2 22.Qe2 Bd2 23.Nd2 Qa1 24.Kf2 Qc3 25.Nb1 Qd4 26.Kf1 Qc4 27.Nd2 Qe2 28.Ke2 a5 29.Nb1 b5 30.Nc3 b4 31.Nb5 d4 32.Kd3 Ne5 33.Kc2 Kb7 34.Kb3 c6 (34...c6 35.Nd4 Rd4–+; 34...d3 35.Nd4 Rd4 36.Kb2 d2 37.f4 d1Q 38.fe5 Rd2#) 0–1. kurt5561 – coolerdude, ChessWorld.net, 2005.

4.e3 c5

5.a3 Ba5= 6.h3 Nc6 7.Bb2 d5 8.Bb5 0–0 9.Bc6 bc6 10.Nf3 Ba6 11.Bc3 Bc7 12.d3 Re8 13.0–0 Qd6 14.Nbd2 Rab8 15.Nb3 Nd7 16.Nbd2 c4 17.dc4 Nb6 18.Qe2 Nc4–/+ 19.Rfd1 Qg6 20.Nc4 Bc4 21.Qd2 f6 22.Bd4 a6 23.Qc3 Be2 24.Ne1 Bd1 25.Rd1 Re6–+ 26.Nd3 Bd6 27.Qa5 Ra8 28.Rb1 h5 29.a4 h4 30.Rb7 Qh5 31.f3 Qg6–+ 32.Qb6 Be5 33.Be5 fe5 34.f4 e4 35.Nc5 Ree8–+ 36.Na6 Qg3 37.Nc7 Ra4 (37...Ra4 38.Ra7 Ra7 39.Qa7 Re7–+) 0–1. Erasmos – Wall,Bill, Microsoft Gaming Zone, 2003.

5.Qf3 Nc6 6.Bf6 gf6 7.c3 Ba5 8.Qd5 Qe7 9.d3 d6 10.e4? h5 11.Qb3=+ Be6 12.Qc2 0–0–0 13.Nd2 d5 14.0–0–0 de4 15.de4=+ Rhg8 16.Ne2 Kb8 17.Nf4 Bc7 18.Nd3 c4 19.Nb4? Nb4–+ 20.cb4 Qb4 21.Qb2? Qb2 22.Kb2 c3! 23.Kc3 Ba5 24.Kc2 Ba2 25.Kb2?? Be6 26.Kc2 Rc8 27.Kb1 Rc6 28.Rg1 Rb6 29.Kc2 Rc8 30.Nc4 Bc4 31.Bc4 Rc4 32.Kd3 Rc3 33.Ke2 Rc2 34.Kd3 Rbc6 35.Rgf1 R6c3 36.Kd4 0–1. EXchess 3.11 – Comet B25, 2004.

4.e3 Qe7

5.Bb2 0–0 6.a3 Bc5 7.Qf3 =.

5.Bb2 Ba5 6.Nf3 Qb4 7.Qc1 Ne4 8.c3 Qf8 9.Bd3 Nf6 10.0–0+= d6 11.Nd4 c5 12.Nf3 Bg4 13.Be2 Qe7 14.d4 c4 15.Nbd2 d5 16.Ba3 Qd7 17.Ne5+/– Qe6 18.Bg4 Ng4 19.Ng4 Qg4 20.Nf3 Bd8 21.Re1 Be7 22.e4 de4+= 23.Ne5 Qe6 24.Be7+/– Qe7 25.Re4 0–0 26.Qe3 Qa3 27.Nc4+/– Qa4 28.Ne5 Na6 29.h3 Rac8 30.Rg4 Qc2?? 31.Rc1 Qa2 32.Qg3?? g6+= 33.Nf3 Qb2= 34.Re1 Rc3 35.Qh4 f6 36.d5 Qa3 37.d6 Qd6–/+ 38.Rd4 Qc5 39.Rde4 Nc7 40.Re7=+ Nd5?? 41.Qh7# 1–0. giga – sexyduck, Live Game Caissa's Web, 2005.

5.Bc7 d6 6.Bb8 Rb8 +=.

5.Nf3 0–0 6.Bc7+= d6 7.Bb8 Rb8 8.c3 Ba5 9.Nd4 Qe8 10.Nb5+/– Qe7 11.Na7 Bd7 12.Nb5 Ng4 13.h3 Qh4 14.g3 Qh5 15.Nd4 Qh6 16.Bb5 Bb5 17.Nb5 Ne5 18.d4 Nc4 19.d5 Ne3 20.fe3 Qe3 21.Kf1 Qg3 22.Nd4 Bc3 23.Nc3+/– Qc3 24.Rc1 Qa3 25.Qd2 Rfe8 26.Kg2 Ra8 27.Rc2+– Qa7 28.Nb5 Rac8?? 29.Rc8+– (29.Rc8 Rc8 30.Na7+–) 1–0. mtr – killingjoke, internet, 2001.

4.e4 d5

5.a3 Bd6 6.Bd6 Qd6 7.Nc3 de4 8.Qe2 Qc6 9.Qe3 0–0 10.Bb5 Qb6 11.Nge2 Qe3 12.fe3 c6 13.Bc4 Nbd7 14.Ng3 b5 15.Ba2 Nc5 16.0–0 Rd8 17.Rf2 Be6 18.Be6 Ne6 19.Nce4 Ng4 20.Rff1 Ne5 21.d3 a6 22.Rab1 c5 23.Nf5 ½–½. Rosner,Dirk – Beutel,Heinrich, Tiger SC, 2000.

5.c3 Bd6 6.Bf6 Qf6 7.ed5 0–0 +=.

5.Bc3 Bc3 6.Nc3 d4 7.Na4 0–0 8.d3 c5 9.c3 Qa5 10.Qb3 dc3 11.Qc2 Na6 12.Nc3 Nb4 13.Qd2 Rd8 14.Rc1 Be6 15.Nf3 Nd3 16.Bd3 c4 17.Nd5 1–0. Granzeuer – Roever, corr SOK–87–10.

5.ed5 0–0 6.Be2 (6.Bf6 Qf6 7.c3 Bd6+=) 6...Re8–/+ 7.Nf3 (7.a3 Bd2 8.Nd2 Re5+=) 7...Bg4 (7...Qd5?! 8.Bf6 gf6 9.0–0=; 7...Nd5?! 8.0–0+=) 8.Bg3 Bf3 9.gf3 Nd5 10.0–0 Nd7 (better is 10...Qg5–/+) 11.d4? (better is 11.Bd3–/+) 11...Bc3–+ 12.Nc3 (12.Bc4 Ba1 13.Bd5–+) 12...Nc3 13.Qd3 (13.Qd2 Ne2 (13...Re2?! 14.Qc3 c5 15.Rfe1 Re1 16.Re1+=) 14.Kg2 c5–+) 13...Ne2 (13...Re2?! 14.Qc3 c5 15.Rfe1 Re1 16.Re1+=) 14.Kg2 Nf8 (14...Qg5 15.h4 Nf4 16.Kh1–+) 15.Rab1 (15.Rae1 Qd4 16.Bc7 Qd3 17.cd3 Ng6–+) 15...b6 (15...Ne6 16.Qd2 N2d4 17.Rb7–+) 16.d5 (16.Rfe1 Qd4 17.Bc7 Qd3 18.cd3 Rac8–+) 16...Ng6 17.Rb4 (17.Kh1 Ngf4 18.Bf4 Nf4–+) 17...Qg5 (17...a5 18.Ra4–+) 18.Kh1 Ngf4 19.Qd1 (19.Rf4 Nf4 20.Qd2 Ne6 21.Qg5 Ng5–+) 19...Nd5 20.Rb3 Rad8 21.h4 Ng3 22.fg3 Qg3 23.Qd2 Qh3 (23...Qh3 24.Kg1 Nc3 25.Re1 Qg3 (25...Rd2?? 26.Re8) 26.Kf1 Re1 (26...Rd2 27.Re8) 27.Qe1 Qf3 28.Kg1 Rd1 29.Qd1 Qd1 (29...Nd1?! 30.Rf3 Nb2 31.Rb3+=) 30.Kf2 Qc2 31.Kg3 Ne2 32.Kf3 Nd4 33.Kg3 Nb3 34.ab3 Qb3 35.Kf2 a5 36.Kg2 a4 37.h5 Qd5 38.Kf2 a3 39.Kg3 a2 40.h6 a1Q 41.Kf2 Qf5 42.Ke2 Qe4 43.Kd2 Qae1#) 0–1. jlepok (1840) – Azazello (2020), internet, 2007.

4.e4 d6

5.Bb2 Nc6 6.a3 Ba5 7.f3 0–0 8.Bb5 Ne4 9.Ne2 Nf6 10.0–0 Bb6 11.Kh1 a6 12.Bc6 bc6 13.Nd4 c5 14.Ne2 c4 15.d3 cd3 16.Qd3 Bb7 17.Nd2 a5 18.Nf4 Ba6 19.c4 d5 20.Rfc1 dc4 21.Nc4 Qd3 22.Nd3 Rad8 23.Bf6 gf6 24.Nf4 Rd4 25.Nb6 cb6 26.Nh5 f5 27.Rc6 Rfd8 28.h3 Bb7 29.Rb6 Rd2 30.Rb7 Rf2 31.Rab1 Kf8 32.R7b2 Rb2 33.Rb2 Rd1 34.Kh2 Ra1 35.Rb3 a4 36.Rc3 Ke7 37.Kg3 Ke6 38.Nf4 Ke5 39.Ne2 Kf6 40.Nd4 f4 41.Kf4 Rg1 42.Kg3 Re1 43.Rc4 Ra1 44.Ra4 Rb1 45.Rb4 Ra1 46.a4 Ra2 47.Nc6 Kf5 48.a5 Kg6 49.Rb6 Kf5 50.a6 Kg5 51.a7 Kh5 52.Rb8 h6 53.a8Q Ra8 54.Ra8 f6 55.Ra7 f5 56.Rg7 f4 57.Kf4 Kh4 58.Rg4 1–0. horacyad2010 – mihail55, kurnik, 2012.

5.Bf6 Qf6 6.c3 0–0 7.Bc4 Nc6 (better is 7...Re8 8.f3 c6–/+) 8.d3? (better is 8.Qf3 Qe5 9.Ne2+=) 8...Bc3–+ 9.Nd2?? (better is 9.Nc3 Qc3 10.Kf1–+) 9...Ba1 10.Ngf3 Bc3 0–1. gtate (1700) – cbum (1945), net–chess.com, 2002. (=1.e4 e5 2.b4 Nf6 3.Bb2 Bb4 4.Be5 d6)

5.Bf6 Qf6 6.c3 Bc5 7.d4 Bb6 8.Bd3 0–0 9.Nd2 c5 10.Qf3 cd4 11.Qf6 gf6 12.c4 (12.cd4 Bd4 13.Rc1 Be6=) 12...Re8 13.Nb3?? (better is 13.0–0–0+=) 13...f5–+ 14.f3 (14.e5 de5 15.c5–+) 14...Nc6?? (14...fe4 15.fe4 f5 16.e5 de5 17.c5–+) 15.Rd1? (15.Kd2 Ne5–/+) 15...Nb4 16.Ne2 fe4 17.Be4 f5 18.Bd5–/+ Kg7 19.Nbd4? Bd4–+ 20.Kf1? Bc5 21.g3 f4 22.Nf4 Na2 23.Kg2 Nc3 24.Rd3 Ne2 25.Nh3 Bd7 26.Bb7 Rab8 27.Bd5 Rb2 28.Nf2 Bf2 29.Kf2 Nc1 (29...Nc1 30.Rd2 Nd3 31.Kg2 Rd2 32.Kf1 Re1#; 29...Nf4 30.Rd2 Rd2 31.Kf1 Bh3 32.Kg1 Re1#) 0–1. rayzz – Bandy 1, ChessWorld.net, 2012.

4.e4 Qe7

5.Nf3 0–0 6.Bd3. W Gross.

5.Nf3 d6 6.Bf6 Qf6 7.c3 Ba5. W Gross.

5.Bf6 Qe4 6.Qe2 Qe2 7.Ne2 gf6 8.Nbc3 +=.

5.Bf6 Qf6 6.c3= 0–0 7.Nf3 (7.Qf3 Qe5=) 7...Be7 (7...Re8 8.e5 Bf8 9.d4+=) 8.Bd3 (8.d4 Re8=) 8...Nc6 (8...d6 9.0–0+=) 9.0–0 Nb4?? (better is 9...d6+=) 10.e5+– (10.e5 Qh6 11.cb4 Bb4 12.Nc3+–) 1–0. Galagus – victor, playchess.de, 2001.

4.f3 d5

5.Nc3 d4 6.Nb5 0–0 =.

5.e3 0–0 6.Bb5 Bd7 7.a4 a6–/+ 8.Bd3 c5 9.c3 Ba5 10.Ne2 Nc6= 11.Bg3 Re8 12.0–0=+ Bc7 13.Bf2 Ne5–/+ 14.Bc2 Nc4 15.Qc1 Rc8 16.Na3 Na3 17.Qa3 Bd6 18.Rfb1 Qc7 19.Bg3 Bg3 20.Ng3 g6 21.a5 Re6 22.Rb2 b5 23.ab6+/– Rb6 24.Rb6 Qb6 25.Qa6 Qb2 26.Qa2 Rb8 27.Ne2 Be6 28.Qb2 Rb2= 29.Rc1 Ne8 30.Kf2 Nd6 31.Nf4 Bf5 32.d3 g5 33.Ne2 c4= 34.e4 de4 35.de4+/– Bg6 36.Ke3 f6 37.Nd4 Be8 38.Rb1 Rb1+/– 39.Bb1 Kf7 40.Ba2 Ke7 41.g3 h5 42.f4 g4 43.e5+– fe5 44.fe5 Nf7 45.Kf4 Nd8 46.Bc4 Bf7 47.Bf7 Nf7 48.c4 (48...Ke8 49.Nf5+–) 1–0. Zielke,Bernd – Fanenbruck,Guenter, Kiel op, 2001.

5.e3 0–0 6.Bb5 Qe7 7.Bf4 (better is 7.f4!?–/+) 7...Nh5–+ 8.Qe2 Qf6 9.c3 0–1. Vermaas,Fred – Baroin,Bernard (2065), TE.2004.S.01703, 2006.

5.e3 Qe7 6.Bd4 =+.

4.f4

4.f4 (--> 1.b4 e5 2.Bb2 Bb4 3.f4 Nf6 4.Be5).

4.f4 d5 5.e3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 d5 5.f4).

4.Bf6 Qf6

5.c3 0–0 6.e3 Ba5 7.Bd3 g6 (7...Nc6 8.Qf3+=) 8.Qf3 Qg7 9.a4 (9.Ne2 c6=) 9...Nc6 10.Ne2? (better is 10.Bc2=) 10...Ne5–+ 11.Qd5 c6 (11...Nd3?! 12.Qd3 Re8 13.Nd4=) 12.Qd6 Bc7 (12...Nd3?! 13.Qd3 d5 14.Nd4+=) 13.Qd4?? (13.Qc7 Nd3 Deflection) 13...b6 (better is 13...Bb6 14.Qh4 Nd3 15.Kf1 d5–+) 14.Bc2 (14.f4 c5 15.Qd5 Nd3 16.Qd3 Rd8+=) 14...c5 15.Qd5 (15.Qh4 d5 16.f4 Nc6+=) 15...Rb8 16.Qa2 Ba6 Black intends c4 (16...Bb7 17.0–0+=) 17.Na3 Nd3 (17...Bb7 18.f3+=) 18.Bd3= Bd3 19.Nb5 Be5 (19...Rbc8 20.Qd5 (20.Na7? Ra8–+) 20...Be2 21.Ke2+=) 20.Qd5+= (20.Na7? Ra8 21.Nc1 Ba6–+ (21...Ra7 22.Nd3 Bc7 23.Qd5+/–)) 20...c4 (20...Be2 21.Ke2 a6 22.d4 Bd4 23.cd4 ab5 24.ab5+=) 21.f4 Bf6 22.Na7 Rfe8 (22...Ra8 23.Nb5+/–) 23.Nb5+/– Be4 (23...Bh4 24.Kd1 Rec8 25.Ned4+/–) 24.Qc4 d5 25.Qb3 (25.Qc7 Bg2 26.Rg1 Rec8+/–) 25...Bg2 26.Rg1 Be4 27.Nd6 Red8 28.Ne4 de4 29.Nd4 (29.Ng3!? Bh4 30.Qc4 Bg3 31.hg3+/–) 29...Bd4 (29...Qh6 30.f5 Qh4 31.Kf1 Qh3 32.Rg2 Bd4 33.cd4 Qf5 34.Rf2=) 30.cd4= Qh6 31.Rg2 Qh4 (31...Qh3 32.Rf2=) 32.Kf1+= Qh3 33.Kg1 (33.Qb5+=) 33...Kg7 (33...Rd4! 34.a5 b5+=) 34.Rf1 (34.Qb5 Kf8+/–) 34...f5 (34...Qf5 35.Rg5 Qd7 36.f5+/–) 35.Qe6 Qh4? (better is 35...Re8 36.Qd7 Kh8+/–) 36.Qf5+– Re8 (36...Qe7 37.d3 Qa3 38.Qe5 Kg8 39.f5+–) 37.Qg5 (37.Qb5 Rf8+–) 37...Qg5 38.Rg5 Ra8 39.Rb5 (39.Rb1 Ra4 40.Rb6 Ra2 41.Rb7 Kg8+–) 39...Ra4 40.Rb6 Ra2 41.Rd1 Kh6 (41...Kf8 42.Rb3+–) 42.Rb5 Rc8 (42...Kg7 43.Rb7 Kh6 44.Kf2+–) 43.Kf1 Ra6 (43...Kg7 44.Re5+–) 44.Re5 Rf8 (44...Rca8 45.Re4 Ra1 46.Ke2 Rd1 47.Kd1 Ra1 48.Kc2 Ra2 49.Kd3 Ra3 50.Ke2+–) 45.Ke2 Kg7 (45...Rfa8 46.Re4 R8a7 47.d5+–) 46.Re4 Rf5 (46...Rf7 47.Rc1+–) 47.Re5 (47.Re7 Rf7 48.Rf7 Kf7+–) 47...Rf7 48.h4 h6 (48...Rd7 49.Rc1+–) 49.Rg1 Kf6 (49...Rff6 50.d5+–) 50.Rc1 Kg7 51.d5 g5 (51...Ra2 52.Re6+–) 52.hg5 hg5 53.Rg5 Kf6 1–0. Valente,Hector Manuel (1785) – Funaro,Martin (1975), Club Argentino de Ajedrez – Torneo Abie, 2013.

5.c3 d5 6.Nf3 Bd6 (6...Nc6 7.d4 Bd6 8.e3–/+) 7.d4 (7.Qb3 c6–/+) 7...0–0 (7...Nc6 8.e3–/+) 8.e3 Be6 (8...Qg6 9.Bd3 Qg2 10.Bh7 Kh8 11.Rg1+=) 9.Bd3 c5 10.0–0 Nc6 11.Nbd2 Rfd8 (11...Rac8 12.dc5 Bc5 13.Qb1+=) 12.Qb1+= cd4 13.cd4 (13.Nd4 g6+=) 13...g6 14.a3 (14.Qb7? Nb4 15.Ne4 de4 16.Be4 Kg7–+) 14...Rab8 (14...Rd7 15.Re1+=) 15.Rc1 (15.Re1 b5+=) 15...h5 (15...Qe7 16.Qb2=) 16.Rc3 (16.Qb2 Bf5 17.Qb1 Kg7=) 16...h4 (16...g5 17.Nb3+=) 17.Qf1 (17.h3 Rbc8 18.Qb2 a6=) 17...g5 (17...Rbc8 18.Rc2–/+) 18.Rac1 (18.h3 g4 19.hg4 Bg4=) 18...Kh8 (18...g4 19.Ne1–/+) 19.Bb1 (19.h3 g4 20.hg4 Bg4+=) 19...Rg8+= 20.Qd3 (20.e4 A) 20...Nd4 21.ed5 Nf3 22.Rf3+/– (22.gf3?? Qf4 23.Qd3 Qh2 24.Kf1 Bh3 25.Ke2 Rbe8 26.Kd1 Rg7–+); B) 20...Bf4 21.ed5 Bd5+=) 20...Rg7 (20...Qh6 21.g3–/+) 21.e4 (21.g3 Qh6+=) 21...Bf4 22.e5 (22.g3!? hg3 23.hg3+=) 22...Qh6–/+ 23.R1c2 (23.Rd1 g4 24.Ne1 f6–/+) 23...g4–+ 24.Ne1 g3 25.Ndf3 (25.fg3 hg3 26.h3 f6–+) 25...gh2 26.Kh1 Rbg8 (better is 26...f6–+) 27.Rb2?? (27.Nh2 f6 28.Rc6 bc6 29.Rc6+=) 27...Bg4 (better is 27...Bh3! 28.Rc6 bc6–+) 28.Rb7 (28.Nh2 Bc8=) 28...Bf3 (28...Bh3 29.Qf1 Rg2 30.Rf7 Rg1 31.Qg1 Rg1 (31...hg1B 32.Rc6 Qh5 33.Rcc7 Qf3 34.Nf3 Bg2 35.Kg1 Bh3 36.Rg7 Rg7 37.Rg7 Kg7 38.Nh4+/–; 31...hg1R?! 32.Ng1 Rg1 33.Kg1–+; 31...hg1Q 32.Ng1 Rg1 33.Kg1–+) 32.Ng1 hg1Q (32...hg1B?! 33.Rh7 Qh7 34.Bh7 Bf2 35.Nd3 Bd4 36.Rc6+=) 33.Kg1 Kg8–+) 29.Qf3+= Nd4 30.Qd5 Ne6 31.Qe4 (worse is 31.Ra7 Bd2 32.Rf3 Be1–/+) 31...Bd2 32.Rh3 Nf4 (better is 32...Rg4 33.Qd5 Rd4=) 33.Rh2?? (better is 33.Rf3 Ne6 34.Rh3+= (worse is 34.Rbf7 Ng5 35.R7f6 Ne4 36.Rh6 Bh6 37.Be4 Rg4=)) 33...Be1–+ 34.e6?? (better is 34.Qe3 Rc8 35.Qe1–+) 34...Bf2 35.ef7 Rf8 36.g4 (36.Qb4 Rgf7 37.Rf7 Rf7 38.Qb8 Kg7 39.Qb2 Kg8–+) 36...Bg3 (better is 36...Nh5!? 37.Qe5 Qc6 38.Be4 Qe4 39.Qe4 Ng3 40.Kg2 Ne4 41.Rb4–+) 37.Rc2 (37.Rd2 Nh3 38.Rb5 Rgf7 39.Qd4 Kg8–+) 37...Qd6 (37...Qd6 38.Rc1 Nh3–+) 0–1. Korolkov,Anatolij (1975) – Mishuchkov,Nikolai M (2370), Gagra op, 2008.

4.Bg3 d6

5.c3 Bc5 6.d4 Bb6 7.Nd2 (7.e3 0–0=) 7...Be6 8.Bh4 h6 (8...Nbd7 9.e4=) 9.Ne4 (9.e4 0–0=) 9...g5=+ 10.Bg3?? (Better is 10.Nf6 Qf6 11.Bg3=+) 10...Ne4–+ 11.f3 Nc3 12.Qc2 Nd5 13.e4 Ne3 14.Qd2 Nf1 (15.Kf1 Bc4 16.Ne2 Nc6–+; 14...Bd4!? 15.Rc1 Bb6 16.Bd3–+) 0–1. Slavisa666 – igorA23, Live Game Caissa's Web, 2004.

5.c3 Bc5 6.d4 Bb6 7.e3 Bg4 8.Be2 Be2 9.Ne2 d5 10.0–0 0–0 11.c4 Re8 12.c5 Ba5 13.Nbc3 b6 14.Rb1 c6 15.Bd6 b5 16.a4 a6 17.Qd3 Nbd7 18.Rfc1 h6 19.Qf5 Ra7 20.Rb3 g6 21.Qf4 Kg7 22.ab5 Nh5 23.Qg4 f5 24.Qf3 ab5 25.Ra1 Qh4 26.Rba3 Rea8 27.Bc7 Bb6 28.Ra7 Ra7 29.Ra7 Ba7 30.Bd6 b4 31.Na2 b3 32.Nb4 Nc5 33.Be5 Kh7 34.Nc6 b2?? 35.Nc3+/– Ne4 36.Nb1 Bb6+/– 37.Qe2 Qg4? 38.f3+– Qg5 39.fe4 de4 40.Kh1 Qh4 41.Qd2 Nf6 42.Nc3 Nd5 43.h3?? Nc3–+ 44.Qb2 Qe1 45.Kh2 Ne2 46.Qe2 0–1. Fritz 8 – Fritz 5.32, 2004.

5.e3 Be6 6.Nf3 Nbd7 7.Be2 a6 (7...0–0 8.0–0=) 8.c3= Ba5 9.0–0 Ne4 (9...0–0 10.Nd4=) 10.Qc2 (10.Bh4 Ndf6=) 10...Ng3 11.fg3 0–0 12.Na3 Nf6 13.Nc4 c5 14.Rab1 Bc4 15.Bc4 b5 16.Bd3 c4 17.Bf5 d5 18.Bh3 Qd6 19.Nd4 Ne4 20.a4= f6 21.Bf5 g6 22.Be4 de4 23.ab5 ab5 24.Rb5 Bb6 25.Qe4+– Bd4 26.Qd4 Qc6? 27.Qd5 Qd5 28.Rd5 Kg7 29.Rb1 Rfd8 30.Rb7 Kh6 31.Rbd7 Rd7 32.Rd7 Ra1 33.Kf2 g5 34.Rc7 Ra2 35.Ke2 Ra4 36.Rc6 Kg6 37.h4 gh4 38.gh4 h5 39.g3 Kf5 40.Kf3 Ra2 41.Rc5 Kg6 42.Rd5 Ra1 43.Rd4 Rd1 44.Ke2 Rg1 45.Kf2 Rd1 46.g4 hg4 47.Kg3 Rg1? 48.Kh2+– Rd1 49.Kg3?? f5 50.Rc4 Rd2 51.Rc6 Kf7 52.Kf4 Rf2+/– 53.Kg5 Rf3 54.Rc7 Ke6 55.h5 g3 56.h6?? g2–+ 57.Ra7 (57...g1Q 58.Kh5 Rh3; 57.Kg6 g1Q 58.Kh7 Qe3 59.Rc6 Kd5 60.Rg6–+) –+. Slavisa666 – igorA23, Live Game Caissa's Web, 2004.

4.g4 d6

5.Bb2 Bg4 6.Bg2 Nc6 7.c3 Bc5 8.d4 Bb6 9.Nd2 0–0 10.f3 Nd5 11.Nc4 Be6 12.e4 Qh4 13.Kf1 Nc3 14.Bc3 Bc4 15.Ne2 Qf6 16.d5 Qc3 17.dc6 Be2 18.Ke2 Qe3 19.Kf1 Qf2 0–1. Haigh/McDaniel – Avguarde, Livermore 1992.

5.Bg3 Bg4 6.c3 Ba5 –/+.

5.g5 de5–+ 6.gf6 Qf6 7.a3 (7.Bg2 c6–+) 7...e4 Black threatens strongly Bc5 8.c3 Ba5?? (better is 8...Bc5 9.Qa4 Kd8–+) 9.Qa4+= Nc6 10.Qe4 Be6 (10...Kd8 11.Qd5 Ke7 12.Qe4 Qe5 13.Qe5 Ne5 14.d4+=) 11.e3 (11.Bh3 g6=) 11...0–0 (11...0–0–0 12.Bh3+=) 12.Bb5 (12.Bd3 Qh6+=) 12...Ne7–/+ 13.Qb7?? (better is 13.Bd3 Bf5 14.Qc4–/+) 13...Bd5–+ 14.Qa6 Qa6 (14...Qa6 15.Ba6 Bh1–+; 14...Bh1?! 15.Qa5 Rfb8 16.a4–+) 0–1. Weber,Roger – Laine,Jari (1840), FICGS, 2006.

4.h3 0–0

5.e3 Nc6 6.Bb2 d5 7.Ne2 Bf5 8.Ng3 Bg6 9.Bd3 d4 (9...Bd3 10.cd3 Re8 11.0–0+=) 10.0–0 Bd3 11.cd3 Qd7 12.Nh5 Be7 13.ed4 Nd5 14.Qf3 Qe6 (14...Rad8!?–/+) 15.Nc3= Rad8 16.Ne4 (16.Rfe1 Qd6=) 16...f5 (16...Qh6!?–/+) 17.Nc5= Qc8 18.Qg3 (better is 18.Rfe1!? Rd6 19.Re2=) 18...Rf7–/+ 19.Rae1 Bd6 (19...f4 20.Qf3–/+) 20.Qg5 (20.Qf3 g6 21.Ng3 Bg3 22.Qg3 Rd6=) 20...Be7 21.Qg3 Bd6 22.f4 (22.Qg5 b6 23.Ne6 h6–+) 22...Nf6 (22...g6!?+=) 23.Nf6= Rf6 24.Rf3 Nb4 25.Rfe3 Rg6 (worse is 25...Na2 26.Ne6 Rg6 27.Qh4 Re6 28.Re6+/–) 26.Qh4 Nc2 27.Re6? (better is 27.Qd8! Qd8 28.Re8 Kf7 29.Rd8 Ne1 30.g4 fg4 31.f5–/+) 27...Ne1–+ 28.Re1 b6 29.Ne6 Re8 30.d5 Re7 31.Re3 Qa8 32.Ng5 h6 33.Nf3 Re3 34.de3 Qd5 35.Qh5 Kh7?? (35...Re6 36.Nd4 Re3 37.Nf5 Qd3 38.Qg4 Re1 39.Kh2–+) 36.Ng5?? (better is 36.Nh4 Rg3 37.Qf5 Qf5 38.Nf5=) 36...Kg8?? (better is 36...Rg5 37.fg5 Qa2 (worse is 37...Qd3 38.Kf2–+) 38.g6 Kg8–+) 37.Qg6+– hg5 38.Qg7 1–0. seshat – rex147, gameknot.com, 2013.

5.Nf3 d6 6.Bb2 b6 7.a3 Ba5 8.e3 Bb7 9.Be2 a6 10.0–0 Nbd7 11.d3 b5 12.Nbd2 Bd2 (12...Nd5 13.c4 Nc3 14.Bc3 Bc3 15.Rb1=) 13.Nd2 Ne5 14.f4 Ng6 15.Bf3 Bf3 16.Qf3 Ne7 (better is 16...Re8!?=) 17.Bf6+/– gf6 18.Ne4 Nd5 (18...f5 19.Nf6 Kg7 20.Nh5 Kh8 21.a4+/–) 19.Qh5 Ne3? (better is 19...c6+/–) 20.Rf3+– Nc2 (20...Kh8 21.Re3 d5+–) 21.Qh6 (21.Qh6 Ne3 22.Rg3 Ng4 23.Rg4 Kh8 24.Qg7#) 1–0. Elguera,Amilcar – Sepulveda,Mirko, Arequipa Cup, 2003.

4.h3 d6

5.Bb2 Bf5 6.e3 0–0 7.Qf3 Bc2 8.Qb7 c5 9.Qa8 +/–.

5.Bb2 Bf5 6.e3 0–0 7.Qf3 Be4 8.Bf6 Qf6 9.Qf6 (9.Qe4? Qa1 10.c3 Ba3–/+) 9...gf6 10.c3 Bc5 (10...Ba5!?+=) 11.d4+= Bb6 12.Nd2 Bf5 13.g4 Bd7 14.Ne4 Kg7 15.Ng3 Bc6 16.f3 Re8 (16...Ba5 17.Kd2+=) 17.Kf2+= Nd7 (17...Ba5 18.Rc1+/–) 18.Bd3+/– Ba5 19.N1e2 Bd5 (19...Kf8 20.Bh7 a6 21.Bd3+–) 20.c4 (better is 20.Rab1 Bb6 21.Nh5 Kg8 22.c4+–) 20...Be6? (better is 20...Bc6!?+/–) 21.Nf4+– c5? (21...Nb6 22.Ngh5 Kh8 23.Nf6 Re7+–) 22.d5 Bc3 (22...Rad8 23.Ngh5 (23.Ne6?! fe6 24.Nh5 Kf8+–) 23...Kg8 24.Be4+– (24.Ne6?! fe6 25.de6 Re6+–)) 23.Rac1 (23.Ne6?! fe6 24.Rac1 Bb4 25.de6 Re6+–) 23...Bd2 (23...Bb4 24.Be4 (24.Ne6?! fe6 25.de6 Re6+–) 24...Ne5 25.Ngh5 (25.Ne6?! fe6 26.de6 Re6+–) 25...Kh8 26.de6 fe6 27.Nf6+–) 24.de6 (24.Ne6?! fe6 25.Rcd1 Ba5+–) 24...Bc1 (24...fe6 25.Rb1 b6+–) 25.Nf5 Kg8 (25...Kf8 26.ed7 Re5 27.Rc1+–) 26.ed7 Be3 (26...Red8 27.Rc1 Rd7 28.Nh5+–) 27.Ne3 Re5 28.Nh5 1–0. Jonsson,Pall G (1800) – Palmarsson,Erlingur Atli, Reykjavik ISL, Open, 2014.

5.Bh2 Ne4 6.Nf3 Nc6 7.g4 +=.

5.Bh2 Be6 6.e3 Ne4 (better is 6...0–0!?+=) 7.c3+= Qf6? (7...Bd5 8.cb4 Qf6+/–) 8.Nf3?? (better is 8.Qf3 Qf3 9.gf3 Nd2 10.Kd2+– (10.cb4?! Nf1 11.Kf1 Nc6+/–; 10.Nd2?! Bc3 11.0–0–0 Nc6+/–)) 8...Nd7 (8...Nc6 9.Be2=) 9.Qc2 (9.Qa4 a5 10.a3 Nec5+=) 9...d5 10.d4 Black has an active position 10...Ba5 11.Bd3 Bh3?? (better is 11...Qg6 this is the best way to fight back 12.0–0 Bh3=) 12.Be5+– Ne5 13.de5 Qc6 (13...Qe7 14.Rh3 (14.gh3?! Nc5+–) 14...Qc5 15.Nd4+–) 14.Rh3 (14.gh3 Worse is 14...Nc5 15.Nd4 Qh6+–) 14...Nc3 15.Nbd2 (15.Kf1 keeps an even firmer grip 15...a6+–) 15...Ne4 (15...Qb6 16.Kf1 c5 17.Nb3+–) 16.Qc6 (16.Be4 makes it even easier for White 16...de4 17.Qc6 bc6+–) 16...bc6 17.Be4 de4 18.Ng5 Rd8 19.Nge4 f5 20.ef6 gf6 21.Nf6 Kf7 22.Nfe4 Rhe8 23.Ke2 Kg6 24.Rah1 Re7 25.Rh6 Kf5 26.R1h5 Kg4 27.f3 (27.Rg5) 1–0. Huelle,Gunter – Gangloff,Markus, Leipzig VfB op, 2001.

4.a3 Bc5

5.Bc3 Nc6 6.d4= Bd6 7.Nf3 Nd5 8.Bb2 Bf4 (8...0–0!?=) 9.c4 Nf6 10.e3 Bh6 11.d5 Na5 12.Bd3 d6? (Better is 12...0–0!?+/–) 13.Qa4+– c6 14.Bc3 Bd7 (14...Nc4 15.dc6 (15.Bc4?! b5 16.Bb5 cb5 17.Qb5 Bd7+/–) 15...b5 16.Qb5+–) 15.Ba5 c5 (15...Qe7 16.Qb3 0–0 17.0–0+–) 16.Bd8 Ba4 17.Bf6 gf6 18.Nc3 (18…Bd7 19.Rb1+–) 1–0. Wall,Bill – Welcome, Internet, 2002.

5.Bc3 d5 6.e3=+.

5.Nc3 Nc6 6.Bg3 d6 7.Nf3 Bf5 8.e3 0–0 9.Be2 d5 10.d4 Bd6 11.0–0 Qe7 12.Bh4 Be6 13.Nb5 a6 14.Bf6 Qf6 15.Nd6 cd6 16.Rc1 Qg6 17.Bd3 Bf5?? 18.Nh4+– Bg4 19.f3 Bf3?? 20.Qf3 Qg5 21.Qf4 Qe7 22.Nf5 Qf6 23.Nd6 Qe7 24.Rb1 g5 25.Qf5 Qe3 26.Rf2 1–0. Rutz,Marco – Marx,Heiner, GER–ch U10 Ueberlingen, 2000.

5.c4 d5 6.cd5 Qd5 (6...Bf2 7.Kf2 Ng4 8.Ke1 Ne5–/+) 7.Nf3?? (7.Bf6 gf6 8.Nc3 Qe6+=) 7...Bg4?? (7...Bf2 8.Kf2 Ng4 9.Kg3 Ne5 10.Nc3–/+) 8.e3?? (better is 8.Bf6 Bf3 9.Bg7+=) 8...Bf3–+ 9.Qa4 (better is 9.gf3 Qe5 10.d4 Bd4 11.Qd4 Qd4 12.ed4–+) 9...Qc6?? (better is 9...Nfd7 10.Bg7 Rg8–+) 10.Bb5+– 0–0 (10...Bg2 11.Rg1 (11.Bc6?! Bc6 12.Qc2 Bh1 13.Qc5 Nbd7 14.Qc7 0–0+/–) 11...Nbd7 12.Bc6 Bc6 13.Qf4+/–) 11.Bc6 Bc6 12.Qc4 (better is 12.Qc2 Be7+–) 12...Bb6?! (12...Be7 13.0–0+– (13.Bc7?! Na6+–)) 13.0–0 (better is 13.Bf6!? gf6 14.0–0 Nd7+–) 13...Nbd7 14.Bb2 (14.Bf6 Nf6 15.Nc3 Rad8+–) 14...Bd5 (14...Rfe8 15.Bf6 Nf6 16.Nc3+–) 15.Qe2 (15.Qh4 Rad8+–) 15...Rfe8 16.Nc3 Bc6 (16...Be6 17.Rac1+–) 17.d4 (17.d3 Rad8+–) 17...a6 (17...Bd4 18.Nb5 Bb6 19.Rfd1+–) 18.Rab1 (18.Qc4 Ba5+–) 18...Ne4? (better is 18...Bd4 19.Rfd1 Be5+–) 19.Ne4 (19.d5 Nc3 20.Bc3 Bd5 21.Bg7 Kg7 22.Qg4 Kh8 23.Qd7 Rad8+–) 19...Be4 20.Rbc1 Re6 21.f3 Bf5 (21...Bc6 22.Rfe1+–) 22.Qd2 (22.e4 Bg6+–) 22...Nf6 (22...Bg6 23.a4 a5 24.Bc3+–) 23.Rfe1 a5 24.e4 White prepares d5 24...Bg6 25.Kf1 Rd8 26.Qf4 (26.Red1 c6+–) 26...h6? (26...Ne4 27.Rc7 (27.fe4?! Rf6 28.Qf6 gf6+/–; 27.Re4?! Be4 28.Rc7 Bd3 29.Kf2 Rf6+=) 27...Rf6 28.Qc1+–) 27.d5 (27.Rc7 Nh5 28.Qc1 Bc7 29.Qc7 Red6+–) 27...Nh5? (better is 27...Nd5 28.Qh4 Rdd6+/–) 28.Qd2 Rd7 (28...c6 29.Bd4 cd5 30.Bb6 Rb6 31.g4+– (31.ed5?! Rb5+–)) 29.Qc3 (29.Bd4!? Red6+–) 29...Ree7 (29...Red6 30.Qc4 f5 31.Be5 fe4 32.Bd6 Rd6 33.fe4 (worse is 33.Re4 Nf6+–) 33...Rf6 34.Ke2 Rf2 35.Kd1+–) 30.g4 (30.a4!? f6+–) 30...Nf6 31.h4 Bh7 (31...Ne8 32.a4+–) 32.g5 Ne8 (32...Nh5 33.gh6 f5 34.e5+–) 33.gh6 f6 (33...f5 34.e5 Rd5 35.Qb3+–) 34.Qc4 (34.hg7 Rg7 35.Ke2 Rg3+–) 34...Nd6 (34...gh6 35.d6 Rf7 36.dc7 Bc7 37.Qb5+–) 35.Qe2 (35.Qb3 Rf7 36.hg7 Bg6+–) 35...Bg6 (35...Nf5 36.Qd2 (36.ef5?! Re2 37.Re2 gh6+/–) 36...Nh6 37.Bc3+–) 36.Qd2 (36.Qg2 Bh5 37.Qh3 Rf7 38.hg7 Rde7+–) 36...Kf7 (36...Be8 37.Re2+–) 37.Qf4 Rd8 (37...Ne8 38.h5! Bh7 39.Re2+–) 38.e5 (better is 38.hg7 Ne8 39.e5 Kg8 40.ef6 Bd3 41.Kg2 Rf7+–) 38...Nf5 39.h5! Bh7 (39...Bh5 40.Qf5 Deflection) 40.hg7 Kg7 (40...Rd5 41.ef6 Red7 42.Re7 Re7 43.fe7 Ke7 44.Qg5 Kd7 45.g8Q Bg8 46.Qg8+–) 41.h6! Kf7 (41...Nh6 42.ef6 Double attack (42.Qf6 Pinning; 42.Qf6 Deflection; 42.ef6 Zwischenzug; 42.ef6 Passed pawn)) 42.e6 Kg6 (42...Ke8 43.Bf6 Rd5 44.Be7+–) 43.Rcd1 (43.Rc2 Re6 44.de6 Bf2 45.Kf2 Rd2 46.Rd2 Bg8 47.Rg1 Kh5 48.Qf5 Kh6 49.Qg6) 43...Nh6 44.Qf6 1–0. Goldmund,Heike – Pipac,Darko, FICGS, 2016.

5.d4= Bd6 6.Nf3 Nc6 7.Bf6 Qf6= 8.c3 0–0 9.h3 b6 10.g4 Ba6 11.g5 Qe6?? 12.d5+– Qe4 13.Nbd2?? Qd5–/+ 14.Bg2 Qe6 15.e3?? Rae8 16.h4?? h5 17.Bh3?? Qd5 18.Bd7?? Rd8 19.Bh3 Bc5 20.Bg2 Rde8 21.Rh2 Qd6 22.Rh3–/+ Ba3?? 23.Qb3= b5?? 24.Ra3 b4?? 25.Ra6 bc3 26.Qc3 Qd7 27.Rc6 Re6 28.Rc7 Qa4 29.Ke2 Qb5 30.Rc4 Ra8 31.Nd4 Qe5 32.Ba8 Rd6 33.Rc8 Kh7 34.g6! fg6 35.Be4 Qe7 36.Qd3 Qe6 37.Ne6 (37.Ne6 Re6 38.Qd8 Re8 39.Qe8 a5 40.Qg6) 1–0. wee harv – Manners, ChessWorld.net, 2005.

5.e3 a6 6.Nf3 (6.d4 Be7=) 6...h6 (6...Nc6 7.d4 Ne5 8.Ne5=) 7.Nc3 (7.d4 Bb6=) 7...c6 (7...Nc6 8.Bf6 Qf6 9.Be2=) 8.d4 (8.Bf6 Qf6 9.Ne4 Qe7 10.Nc5 Qc5+=) 8...Bb6= 9.Bc4 (9.Bf6 Qf6 10.Bd3 Ba5=) 9...d6 (better is 9...Ba5 10.Qd3 d5 11.Bf6 Qf6–/+) 10.Bf6= Qf6 11.0–0 Nd7 (11...d5 12.Bd3=) 12.Ne4 Qg6 (12...Qe7 13.Bd3+=) 13.Bd3+= Nf6?? (better is 13...Qe6+=) 14.Nd6+– (14...Kd7 15.Ne5 Kd6 16.Bg6+–) 1–0. Wall,Bill – Lucin,Serge, internet, 2002.

5.e3 d5 6.Nf3 0–0 7.c4 c6 8.Qc2 Bb6 9.Bd3 Nbd7 10.c5? Ne5 11.Ne5=+ Qe7 12.cb6 Qe5–/+ 13.Nc3 d4 14.f4 Qe7 15.Ne4 Ne4 16.Be4 f5 17.Bf3 de3 18.Qb3 Kh8 19.de3 Bd7 20.ba7 Ra7–/+ 21.Kf2 Re8 22.g3 Be6 23.Qc3 Bd5 24.Bd5 cd5 25.Rhd1 Rd8 26.Qb3 Qd7 27.Rd3 Ra5 28.Rad1 Rb5 29.Qc3 Rc8 30.Qe5 Rd8+= 31.a4 Ra5 32.Qc3 Ra4?? 33.Rd5+– Ra2 34.Kf3 Qd5 35.Rd5 Rf8 36.Rf5! Rg8 37.Qb3 Rh2 38.Qb7 Rd2 39.Rd5 Rh2 40.Qe7 Rh6 41.Rd8 Rf6 42.Qe8! Rff8 43.Qf8 Rf8 44.Rf8# 1–0. Diamand,Sotiri – Oliver,Tamzin, ACT ch Belconnen, 2003.

5.f3 Nc6 6.Bf6 Qf6 7.Nc3 0–0 8.e3 Be3 9.Ne4 Qh6? (better is 9...Bd2) 10.de3 Qe3 11.Ne2 d5 (11...Ne5 12.Qd2 Qd2 13.Nd2) 12.Qd5 Rd8 13.Qc5 Nd4 14.Rd1 Nf3 15.gf3 Rd1 16.Kd1 Qf3 17.Qe5 Qh1 18.Qe8 1–0. Wall,Bill – Guest1243327, playchess.com, 2012.

5.Nf3 0–0 6.Bf6 Qf6 (worse is 6...gf6 7.d4 Bb6 8.e3+/–) 7.Nc3 Nc6 8.e3 Re8 9.Be2 d6 10.Nd5 Qd8 11.d4 Bb6 12.0–0 Ba5 0–1. manishkhanchandani (2225) – sisterofmercy (2655), net–chess.com, 2013.

5.Nf3 d5 6.e3 Nc6 7.Bb2 Bd7 8.Be2 Qe7 9.d3 0–0–0 10.0–0 Qd6 11.Ng5 Rhf8 12.Nd2 d4 13.Nge4 Ne4 14.Ne4 Qe5 15.ed4 Nd4 16.Bg4 f5 17.Nc5 Qc5 18.Bd4 Qd4 19.Bf3 g5 20.h3 g4 21.hg4 fg4 22.c3 Qf4 23.Be4 h5 24.Qb3 b6 25.Qc4 Bf5?? 26.Qa6 Kd7+/– 27.Rae1 Be4 28.Re4 Qd2 29.Qa7 g3 30.f3 h4? 31.Rd4 Ke7?? 32.Qc7 Kf6 33.Rd8 Rd8 34.Qd8 Kg6 35.Qb6 Kh5 36.Rb1 h3 37.Rb5 Kh4 38.Qd4 Qf4 39.Qf4# 1–0. Bango,Dominik – Szabo,Zsolt, Stara Lubovna SVK, Boys Ch U12, 2012.

5.g3 Nc6 6.Nf3? Ne5–+ 7.Ne5 d5?? 8.Bg2? 0–0?? 9.d4=+ Bd6 10.0–0 Re8 11.c4=+ c6 12.cd5 cd5 13.Nd3. coloplayah (2070) – idontcare (2200), net–chess.com, 2006.

5.g3 Bf2! 6.Kf2 Ng4 7.Ke1 Ne5 8.Bg2 Qf6 9.Nc3 Nbc6 (9...c6 10.Nf3–+) 10.Rb1 d6 11.d3 Ng4 12.Kd2? (better is 12.Bc6 bc6 13.Ne4–+) 12...Qh6 (13.Ke1 Qe3–+; better is 12...Nf2!? 13.Qf1 Qg5 14.e3 Nh1 15.Bh1–+) 0–1. audrey – 2222, Live Game Caissa's Web, 2004.

5.Nc3 Bf2!?

6.Kf2 Ng4 7.Ke1 Ne5 8.e3 0–0 9.Nf3 d6 10.Be2 Be6 11.Nd4 1–0. bar (1965) – marcosr, net–chess.com, 2005.

6.Kf2 Ng4 7.Kg3 Ne5 –/+.

5.c4 d6

6.Bb2 0–0 7.d4 Bb6 8.Nf3 Bg4 9.Nbd2 Ba5 10.h3 Bf3 11.gf3 Nbd7 12.Bg2 Rb8 13.0–0 c5 14.e4 a6 15.f4 h6 16.e5+= de5 17.fe5 Nh7 18.d5 Re8 19.e6 fe6= 20.de6 Ne5?? 21.Be5+– Bc7 22.Bg7! Kg7 23.Qg4 Kh8 24.Ne4 Qe7 25.Rfe1 Rg8 26.Qh5 Qg7 27.Ng3+/– Bg3 28.fg3 Qg3 29.Qe5 Qe5 30.Re5 Rbe8 31.Kh2 Rg5 32.Rae1 Re5 33.Re5 b6 34.e7+– Nf6 35.Bc6 Rg8 36.Rf5 (36.Rf5 Kg7 37.Rf6 Kf6 38.e8R Re8 39.Be8+–) 1–0. gtate – wilburman, net–chess.com, 2001.

6.Bb2 Nc6 7.d4 Bb6 8.e3 0–0 (8...Ne4 9.Bd3 Ba5 10.Kf1=) 9.Bd3 Re8 10.Ne2 Bg4 (10...Ne4 11.Nbc3 Bf5 12.0–0+=) 11.0–0+= Qd7 12.Nbc3 a6 (12...Bf5 13.Nd5 Nd5 14.cd5 Bd3 15.Qd3+=) 13.Qc2 h6 14.h3 Bh5 (14...Be2 15.Ne2 (worse is 15.Qe2 Nd4 16.Qd1 Nc6+=) 15...d5 16.c5+/–) 15.Bf5 (15.Nf4 Ne7+–) 15...Qe7? (better is 15...Bg6!? 16.Bg6 fg6 17.Qg6 Na5+/–) 16.Nf4+– g6 (16...Na5 17.Bd3+–) 17.Nh5 (17.Bd3 Na5+–) 17...Nh5 18.Bg6! fg6 19.Qg6 Ng7 20.Nd5 Qg5?? (better is 20...Qh4 21.Nf6 Kf8+–) 21.Nf6 Kf8 (21...Qf6 22.Qf6 Kh7+–) 22.Nh7 Kg8 23.Ng5 hg5 24.f4 (24.f4 Ne7 25.Qg5+–) 1–0. onny555 (1815) – dylam (2050), gameknot.com, 2012.

5.d4 Bb6

6.c3 d6 7.Bg3 0–0 8.Nf3 Nc6 9.e3=+ a6 10.c4 Bg4 11.Be2 Re8 12.0–0= Ne4 13.d5 Ng3 14.hg3=+ Bf3 15.gf3= Ne5 16.Kg2 Qf6 17.Nd2 Nd7 18.f4 Re7 19.Qc2+= Rae8 20.Rh1 h6 21.Nf3 Nc5 22.Rab1 Ne4 23.Rh4?? Nf2–+ 24.Ng5?? Ne4 25.Ne4 Re4 26.Bf3?! Re3 27.Rbh1 Qc3 28.Qc3 Rc3 29.f5 Ree3 30.Rf4 f6 31.Ra1 Ra3 32.Ra3 Ra3 33.Re4 Re3 34.Re3–/+ Be3 35.Bd1 c6 36.dc6=+ bc6 37.Kf3 Bc5 38.Ba4 d5 39.cd5 cd5 40.Bb3 Kf8 41.Bd5 Ke7 42.g4 Kd6 43.Ke4 a5 44.Bb3 Bg1 45.Ba4 Kc5 46.Kf4?? Kb4–+ 47.Bd1 a4 48.Ba4 Ka4 49.Ke4 Kb4 0–1. mic (2180) – jumpnmustang (2320), net–chess.com, 2007.

6.c4 Ba5 7.Nd2 +=.

6.c4 a6 7.c5 (7.e3 d6 8.Bf6 Qf6= (worse is 8...gf6 9.Bd3+/–)) 7...Ba7 (7...Ba5 8.Nd2+=) 8.e4 (8.Qc1 Nh5 9.Nf3 Nc6=) 8...0–0 (8...d6 9.Bf6 Qf6 10.Nc3 dc5 11.Rc1–/+) 9.Bd3 (9.Qf3 Ne8 10.Ne2 Nc6=) 9...d5 (9...d6!? 10.cd6 cd6 11.Bf6 Qf6–/+) 10.Nc3= Be6 (10...Nc6 11.Bf6 Qf6 12.Nge2 (worse is 12.Nd5 Qd4 13.Nf3 Qc5–/+) 12...de4 13.Be4=) 11.ed5 (better is 11.Bf6!? Qf6 12.ed5+/–) 11...Nd5= 12.Nd5 Bd5 13.Nf3 Re8 14.0–0 Nc6 15.Re1 h6 16.Rb1 Rb8 17.Rb2? (17.Rc1 f6 18.Bg3 Re1 19.Qe1 Bf3 20.Qe6 Kh8+=) 17...b6 (17...Bf3 18.Qf3 f6 19.Rb7 Nd4 20.Qd1 Rb7 21.Bd4 Re1 22.Qe1+=) 18.g3 (18.Ba6 f6 19.Bf4 Re1 20.Qe1 Bf3 21.gf3 Nd4+= (worse is 21...Qd4 22.Bc7 Rf8 23.Qe6 Kh8 24.Qd6 Qc5 25.Qc5 bc5 26.Rb7+=)) 18...f6 19.Bf4+= Bf3 20.Re8+/– Qe8 21.Qf3 Qd7 22.Bc4 Kh8 23.d5 Nd8? 24.c6 Qe7? 25.Re2 Qf8 26.Bc7 Ra8 27.Qh5 Nf7 28.d6 Ne5 29.Bd5 Bb8 30.Bb8 Rb8 31.c7 Rc8 32.Re5 fe5 33.Qe5 Rd8 34.cd8Q Qd8 35.Bc6 Qb8 36.Qe8 Qe8 37.Be8 Kg8 38.d7 Kf8 39.d8Q g5 40.Bh5 (40.Bh5 Kg7 41.Qe7 Kg8 42.Qf7 Kh8 43.Bg6 g4 44.Qf8#) 1–0. Baer,Cy (1895) – Bonow,Valdir (1925), CiF, 2007.

6.e3 0–0 7.Bc4 d6 8.Bf6= Qf6 9.Nf3 Bg4 10.Nbd2= c6 11.0–0 d5 12.Bd3 Nd7 13.c4 dc4 14.Bc4 Bc7 15.Qb3 Bf3 16.Nf3+= b6 17.e4+/– c5 18.e5+– Qf4? 19.e6 cd4 20.ed7 g5 21.Rfd1 g4 22.Rd4 Qf6 23.Rg4 Kh8 24.Rd1 h5 25.Rg5 h4 26.Rh5 Kg7 27.Rh4 Rh8 28.Rg4 Kf8 29.Qb4 (29.Qb4 Qe7 30.Qc3+–) 1–0. Wall,Bill – Oneoct, internet, 2001.

6.e3 Nc6 7.Nf3 0–0 8.Bf6= Qf6 9.Bc4 Re8 10.0–0= d6 11.Nbd2 Bg4 12.Bd5 Bf5 13.e4 Bg4 14.c3= Qf4 15.Rb1 Na5= 16.h3 Bd7 17.Re1 c6 18.Ba2 c5 19.Bd5 Rac8= 20.g3 Qh6 21.h4 cd4 22.cd4 Qf6? 23.Ng5 Re7 24.Ngf3 Rc3 25.e5= de5 26.Re5 Bf5 27.Rc1 Rd3 28.Be4+/– Re5 29.de5 Bf2?? 30.Kg2+– Qg6 31.Rc8!! Bc8 32.Bg6 hg6 33.Kf2 Bd7 34.Qc2 Bf5 35.Qc7 Nc6 36.Qb7 Nd8 37.Qa7 1–0. Doctor? 3.0 – Comet B50, 2003.

6.e3 d6 7.Bf6 gf6 8.Ne2 +=.

6.e3 d6 7.Bf6 Qf6 8.Bd3 0–0 9.Qh5 g6 10.Qf3 Qf3 11.Nf3 Nc6 12.Be4 (12.c4 f5+=) 12...f5 (12...Nd4!? 13.Nd4 Re8=+) 13.Bd5 Kg7 14.Nbd2 Bd7 (14...f4 15.Be4=) 15.Nc4 h6 16.Nb6 ab6 17.c4 g5 18.Ke2 g4 19.Nd2 Na5 20.g3 c6 21.Bg2+/– Be6 22.Kd3 d5 23.cd5 Bd5 24.Bd5 cd5 25.Rhb1 Ra6 26.Rb5 Rd8 27.Rab1 Rd6 28.R1b2 Kf7 29.Rc2 Ke7 30.Rc7 Rd7? 31.Rd7+– Kd7 32.Rd5 Ke6 33.Re5 Kf6 34.Rb5 Nc6 35.Nc4 Kg5 36.e4 (36...Ne7 37.e5+–) 1–0. COMP – NN, 2003.

6.e3 d6 7.Bf6 Qf6 8.Bd3 d5 9.Qf3= c6 10.Qf6 gf6 11.Nf3 Bg4 12.Nbd2+= Nd7 13.h3 Bh5 14.c4 Ba5 15.cd5+/– Bf3 16.gf3 cd5 17.Ke2 Nb6? 18.Rac1 Bd2+/– 19.Kd2 0–0 20.Rc7+– Rab8 21.Rg1 Kh8 22.f4 Na4 23.h4 a6 24.h5 h6 25.Rgc1 b5 26.R1c6 Kg7 27.Ra6 Nb2 28.Rc5 Nc4 29.Kc3 Rfd8 30.Kb4 Kf8 31.Rf6 Ke7 32.Rh6 Ra8 33.Rb5 Na3 34.Rb7 Rd7 35.Rd7 Kd7 36.Ra6 Nc2 37.Kc3 Rc8 38.Kd2 Nb4 39.Bf5 (39.Bf5 Ke8 40.Bc8 Na6 41.Ba6+–) 1–0. themonkey (2110) – zdezdenek (1825), GameColony.com, 2002.

5.d4 Nc6

6.Bc7 Qc7 7.dc5 Qa5 8.Nd2 Qc5 9.Ngf3 d5 10.e3 Bg4 11.Bd3 0–0 (11...d4 12.ed4 Nd4 13.0–0=) 12.0–0 Ne5 13.h3 Bh5 14.a4 (14.g4 Nd3 15.cd3 Bg6=) 14...Nf3=+ 15.Nf3 Ne4 16.g4 Bg6 17.Nd4 Rad8 18.Qb1 Qe7 19.Qe1 Rde8 20.Rb1 b6 21.a5 ba5 22.Qa5 Qh4 23.Kg2 Re7 24.Nf3+= Qf6 25.Qd5 Nc3 26.g5 Nd5 27.gf6 Nf6 28.Bg6 hg6 29.c4 Ne4 30.Rb4 Ra8 31.Ra1 a5 32.Rba4 Rea7 33.Ne5 Nc5 34.R4a3 a4 35.Rd1 Rc8 36.Kf1 f6 37.Nf3 Rb7 38.Rd4 Rb4=+ 39.Rg4 Nb3–/+ 40.Rg6 Rcc4 41.Rg4 Rg4 42.hg4 Rg4 43.Ke2 g5 44.Nd2 Rb4 45.f3 Kf7 46.Ne4 g4 47.Nc3 Nc1 48.Kf1–/+ Rb3 49.Rb3 Nb3 50.fg4 a3–+ 51.Na2 Kg6 52.Kf2 Kg5 53.Kg3 Nd2 54.Kf2 Nc4 55.e4 Kf4 56.Nc3 Nd6 57.Nd5 Kg4 58.Nb4 Kf4 0–1. marekt (2365) – Amateur (2685), ICC, 2003.

6.e3 Ne5 7.de5 Ng8 =.

6.Nf3 Ne5 7.de5 Ng4 8.e3 Qe7 9.Qd5 c6 10.Qe4 d6 11.Nc3 Ne5 12.Qf4 Nf3 13.Qf3 Bd4 14.Ne4 Ba1 15.c3 d5 16.Nd2 Bc3 17.g4 Qa3 18.Ke2 Qb2 19.Bh3 Qd2 (19...Qd2 20.Kf1 h5–+) 0–1. Wloka,Frank – Hameister,Raik (2180), remoteschach.de, 2004.

5.d4 d6

6.Bf6 Qf6 7.c3 Bb6 8.Qa4 Bd7 9.Qd1 0–0–+ 10.e4 Re8 11.f3 c5 12.Ne2 Nc6 13.d5 Ne5 14.Qd2 Nc4 15.Qf4 Qf4 16.Nf4 Ne3 17.Kd2 c4 18.a4 Bc5 19.Ke2? b5 20.a5? Rab8–+ 21.g4 f5! 22.g5?? fe4 23.Bh3 Bh3 24.Nh3 ef3 25.Kf3 Re5 26.Nf4 Rf8 27.Re1 Nd5 28.Re5 de5 29.Ke4 Nf4 30.Ke5 Nh3 31.Nd2 Ng5 32.Ne4 Ne4 33.Ke4 g5 34.Rd1 Kg7 35.Rd7 Rf7 36.Rf7 Kf7 37.Kf5 Be3 38.h3 h5 39.Ke4 Bd2 40.Kf5 Bc3 41.Ke4 b4 42.a6 b3 43.Kd5 b2 44.Kc4 b1Q (44...b1Q 45.Kc3 h4–+) 0–1. mduerr (1700) – jboger (1985), net–chess.com, 2009.

6.Bg3 Bb6 7.Nf3 Ba5 8.Nbd2 0–0 9.e3 Ne4 10.Bd3 Ng3 11.hg3 f5 12.0–0 Nc6 13.Bb5 Ne7 14.Nb3 Bc3 15.Ra2 a6 16.Qd3 ab5=+ 17.Qc3 Nd5 18.Qd2 b4 19.Re1 Qd7 20.Kh1 Nc3–+ 21.Raa1 Ne4 22.Qe2 ba3 23.c4 Qa4 24.Nfd2 Be6 25.d5 Bd7 26.Kg1 c5 27.Qf3 Qb4 28.Qd1 Ba4 29.Qb1 Bb3 30.Nb3 Qc4 31.Qd1 Nf6 32.Rc1 Qa4 33.Qd3 Qe4 34.Red1 Qd3 35.Rd3 b5 36.Rdd1 b4 37.Kf1 Rfc8 38.Rc4 Kf7 39.Ke2 Ne4 40.Rh1 Nc3 41.Kd3 Nd5 42.Rh7 Nb6 43.Rch4 c4 44.Rc4 Rc4 45.Kd2 0–1. EXchess 3.11 – Doctor? 3.0, 2004.

5.d4 Be7

6.e3 d6 7.Bf4 Nbd7 8.Qf3 Nb6 9.Nc3 c6 10.Bd3 d5 11.h3 Nc4 12.a4 Qa5 13.Nge2 Bb4 14.0–0 Nd2 15.Qg3 Nh5 16.Qg5 Nf4 17.ef4 Nf1 18.Qg7 Rf8 19.Kf1 Qd8 20.Qe5 Qe7 21.Qe7 Ke7 22.Bh7 Rh8 23.Bd3 b6 24.Re1 Kf6 25.f3 Be6 26.Rb1 Bd6 27.Kf2 Rae8 28.Re1 Bb4 29.Ba6 Bf5 30.Bb7 Re6 31.Bc6 Bc3 32.Nc3 Rc6 33.Nd5 Kg7 34.c4 Be6 35.Ne3 Bc4 36.d5 Rc5 37.Rc1 Bb3 38.Rc5 bc5 39.h4 Rd8 40.h5 Ba4 41.d6 Kh7 42.Nf5 Bc2 43.Ne3 Bd3 44.Ng4 Rd6 45.Ke3 Bf1 46.Kf2 Bb5 47.Ke1 c4 48.Ne5 c3 49.Nf7 c2 50.Nd6 c1Q 0–1. Crafty 19.01 – Fritz 8, 2003.

6.Nf3 d6 7.Bf6 Bf6 8.e4 0–0 9.Nc3 Re8 10.Be2 c5 11.Bb5 Nc6 12.0–0 cd4 13.Bc6 bc6 14.Nd4 Ba6 15.Re1 Qb6 16.e5 Be5 17.Re4 c5 18.Nd5 Qb7 19.Nf5 Bh2 20.Kh2 Re4 21.Nd6 Qb8 22.Nb4 Rd4 23.Nd3 Rd6 0–1. Doctor? 3.0 – Fritz 8, 2003.

5.e3 0–0

6.c4 d5 7.Nf3 Nbd7 8.Bb2 Be7 9.Qc2 Nc5 10.Ng5 Nfe4 11.Ne4 de4 (11...Ne4?! 12.cd5 Qd5 13.Qc7+=) 12.Be2 Bd6 13.Bd4 Qg5 14.g3 Nd3 15.Bd3 ed3 16.Qd3 Bf5 17.Qe2 Qg6 18.c5 Bd3 19.Qd1 Bc5! 20.Bc5 Qc6 21.f3 Qc5 22.Nc3 Rfe8 23.Kf2 Rad8 24.Ne2 Qa5 25.Nd4 c5 26.Nb3 Qb6 27.Nc1 Bg6 28.Ne2 Qb2 29.d4?? (better is 29.Qc1 Rd2 30.Qb2 Rb2 31.Rhd1–+) 29...cd4 30.ed4 (30.e4 d3 31.Rb1 de2 32.Qe2–+ (32.Rb2?? ed1Q 33.Rd1 Rd1–+)) 30...Rd4!! 31.Qf1 (31.Qd4 Re2 Double attack (31...Qe2 Deflection; 31...Re2 Decoy)) 31...Rd2 32.Re1 Bd3 (32...Bd3 33.g4 Be2–+) 0–1. combijack (1815) – casanestor (1760), gameknot.com, 2011.

6.d4 Nc6 7.Bf6 Qf6 8.Qf3=.

6.Be2 Re8 7.Bg3 Ne4 8.Bd3 Ng3 9.hg3 h6 10.Qh5 d5 11.Nf3 Qf6 12.c3 d4?? 13.0–0 dc3?? 14.Nc3?? Bd6= 15.Nd4 Nc6 16.Nd5 Qg5 17.Qg5+= hg5 18.Nb5 Re5 19.Nbc7 Bc7 20.Nc7+– Rb8 21.Nb5 a6 22.Nc3+/– Be6 23.Rfc1 Bf5? 24.e4 Bg6 25.f3 f5? 26.f4 gf4 27.gf4 Ra5 28.e5 Rd8 29.Bf1 Nd4 30.Kh2 Nb3? 31.Bc4+– Bf7 32.Bb3 Bb3 33.Rcb1 Bd5 34.Rb2 Bc6+/– 35.g3 g5 36.Ne2 gf4 37.gf4 Kf7 38.Nc3 Rg8= 39.d4 Rg4 40.Rf2+= Be4? 41.Ne4+– fe4 42.f5 Ra4 43.Kh3+/– Rg7 44.e6 Kf6+= 45.d5 Rd4 46.Re1 Rd5 47.Re4 Re5? 48.Ref4 Re3 49.Kh2 Ra3 50.Rb2 Ra5 51.Re2 Re5 52.Ref2 Rg5 53.Kh3 b5 54.Kh4 Re1 55.R2f3?? Reg1 56.Rh3?? Rg8–+ (56...Rg8 57.Rg3 R1g3 58.Rb4 Rg1 59.Rb5 Rh8#; 56...Rf5?! 57.Rf5 Kf5 58.e7–+) 0–1. mic (2190) – hotchess (2215), net–chess.com, 2008.

6.Nf3 Nc6 7.Bg3 (7.d4 Re8+=) 7...d5 (7...Ne4 8.d4 Bb6 9.Nbd2+=) 8.Be2 (8.Nc3 Bf5=) 8...d4 9.0–0 (9.Bd3 Bd6+=) 9...Bf5 (better is 9...Ne4–/+) 10.c3?? (better is 10.ed4 was possible 10...Nd4 11.Nc3+=) 10...d3–+ 11.Qb3 (11.Nd4 is the last straw 11...de2 12.Qe2–+) 11...de2 12.Re1 Bb6 (better is 12...Bd3!? and Black can already relax 13.Qb7 Qe8 14.Qc7–+) 13.d4 Na5 (13...Qd7 might be the shorter path 14.Re2 a5 15.a4–+) 14.Qb5 Qd5 15.Qe2 Ne4 16.Nfd2 Rfe8 17.f3?? a blunder in a bad position 17...Ng3 18.hg3 Qc6 19.c4 (19.g4 desperation 19...Bc8 20.a4–+) 19…Bd4! 0–1. Frantz,John W – Treacy,Joe, Romulus op, 2000.

6.Nf3 d5 7.Be2 Nc6 8.Bb2 d4 9.0–0 Bf5 10.ed4 Nd4 11.Nd4 Bd4 12.c3 Bb6 13.a4 c5 14.Na3 Nd5 15.Nc2 Nf4 16.Bf3 Qg5 17.g3 Bh3 18.d4 cd4 (18...Bf1 19.Kf1 Ne6 20.Bb7–/+) 19.Nd4 (better is 19.Bc1 Bf1 20.Bf4+=) 19...Bf1 20.Qf1 Ne6 21.Nb5 Rad8 22.Bc1 Qf5 23.Qe2 (23.Bb7 Qc2 24.Be3 Be3 25.fe3 Nc5–+) 23...Rfe8 24.Qe4 (24.Be3 Be3 25.fe3 Nc5–+) 24...Rd1 25.Kg2 Qe4 26.Be4 Nf4!! 27.Bf4 Ra1 28.Bb7 Ra4 29.Bc6 Rc8 30.Bd7 Rd8 31.Bc6 Rc4 32.Bf3 a6 33.Be2 ab5 (33...ab5 34.Bc4 bc4–+) 0–1. Jamieson,Ian (2010) – Rudd,Jack (2310), Coulsdon Xmas–A, 2006.

6.Nf3 Ne4 7.Bd3 d5 8.Nd4? Nf2?? 9.Kf2+– Qh4 10.Kg1 f6 11.Bg3 Qg5 12.Nf3 Qg4 13.Be2 Qa4 14.Nc3 Qc6 15.Nd4 Bd4 16.ed4 Bf5 17.Bb5 Qb6 18.Bd3 Qd4 19.Bf2 Qe5 20.Bf5 Qf5 21.d4 Nc6 22.Ne2 Rae8+/– 23.Ng3 Qg6 24.Rb1 b6 25.a4 Na5 26.c3 Nc4 27.Qb3?? a5 28.Qd1 Ne3 29.Be3 Re3= 30.Nf1 Rc3=+ 31.Ng3 Rd3–+ 32.Qe2? Rd4 33.Re1 Kh8?? 34.Qe6? h6 35.Nf5–/+ Re4 36.Re4 de4 37.Qe4?? Re8–+ 38.Qb1 Qg5?? 39.h3?? Qd2 40.Kh2= Re2 41.Rg1. Nautiluschess – seshadri, ICS blitz, 2001.

5.e3 Nc6

6.Bb2 0–0 7.Nf3 d5 8.d4 Bd6 9.Bd3 Bg4 10.h3 Bh5 11.Nbd2 Re8 12.0–0 Ne4 13.Qc1 Nd2 14.Nd2 Qg5 15.e4?? (better is 15.c4=) 15...Bf4–+ 16.Bc3 de4 17.Ne4 (17.Bc4 Rad8 18.Kh1 Nd4–+) 17...Bc1 (better is 17...Re4 18.Be4 Bc1 19.Rfc1 Qf6–+) 18.Ng5 Bg5 19.d5? (19.f4 Bf6 20.g4 Nd4 21.Rae1–+) 19...Ne7 20.Bc4 Bf6 (better is 20...Be2! 21.Be2 Nd5 22.Bb5–+) 21.Bf6 gf6 22.Bb3 Bg6 23.Rfe1 Nf5 24.Rad1 Re1 25.Re1 Nd4 26.Re7 Rc8 27.Ba4 b5 28.c3 Nf5 (28...Nf5 29.Re4 Nd6–+; 28...ba4?! 29.cd4 Kf8 30.Re3–+) 0–1. Sapareva,Magdalena (1680) – Antonov,Nikola (1700), MGU–11 Open, Sofia BUL, 2010.

6.Bb2 d5 7.Bb5 0–0 8.Nf3 Bg4 9.Be2 Qe7 10.h3 Bf5 11.Nh4 Bd7 12.d3 d4–+ 13.e4 Ne4 14.de4 Qh4 15.Nd2? d3! 16.Rf1 de2 (16...de2 17.Qe2 Rad8–+) 0–1. KnightWheel – Wall,Bill, chess.com, 2007.

6.Bb2 d5 7.c4 d4 8.Nf3 0–0 9.ed4 Nd4 10.Be2 (better is 10.Bd4 Bd4 11.Nc3–/+) 10...Ne2–+ 11.Ke2 (11.Qe2 Re8 12.Be5–+) 11...Re8 12.Kf1 Qd3 13.Kg1 Ng4 (13...Qc4?! 14.Bf6 gf6 15.Nc3–+) 14.g3 (14.Bd4 Bd4 15.Qf1 Nf2 16.Qd3 Nd3 17.Kf1 Ba1 18.Nc3–+) 14...Nf2 15.Kg2 (15.Qe2 Nh3 16.Kg2 Qe2) 15...Bh3 (15...Bh3 16.Kg1 Nd1 17.Bd4 Qf1) 0–1. combijack (1760) – insainoman (1765), gameknot.com, 2011.

6.Bb2 d5 7.d4 Bd6 8.c4 0–0 9.Nf3 Bg4 10.h3 Bh5 11.Nbd2 Re8 12.Be2 b6 13.0–0 Na5 14.Rc1 c6 15.cd5 cd5 16.Bd3 Ne4 17.Bb5? (17.Qc2 Bg6=) 17...Re6 (better is 17...Nd2 18.Qd2 Bf3 19.gf3 Nb3–+) 18.Bc6?? (better is 18.Qc2=) 18...Nc6 (18...Nd2 19.Qd2 Bf3 20.Ba8–+) 19.Rc6? (19.g4 Bg6 20.Rc6 Bh2 21.Kh2 Rc6 22.Qb3–+) 19...Rc8 (better is 19...Nd2 20.Qd2 Bf3–+) 20.Rc8+= Qc8 21.Qc1 Qd7 22.Qc2 Bf3 23.Nf3 Rg6 24.Kh1 Rh6 25.Ne5 Be5 26.de5 Ng5 27.Rc1+/– Ne6?? 28.Qc8+– Qc8 29.Rc8 Nf8 30.a4 a6 31.Ba3 (31.Ba3 g5 32.Bf8+–) 1–0. Loulou – Alex77, playchess.de, 2004.

5.e3 d6

6.Bb2 a6 7.c4 Nc6 8.Qc2 h6 9.Nf3 Bg4 10.Be2 0–0 11.h4 Nh7 12.Qc3 f6 13.Qc2 Qe7 14.Qg6 Bf3 (14...f5 15.h5–/+) 15.gf3 Ne5 (15...Rfe8 16.Nc3 Ne5 17.Qg3+/–) 16.Be5 (better is 16.Qc2!? Nc6 17.d4+/–) 16...fe5= (worse is 16...de5 17.Bd3 f5 18.Bf5+/–) 17.Nc3 Qf7 18.Qg3 c6 19.Ne4 Rae8 20.Rg1 Re7 21.Qg6 Re6 22.Qf7 Rf7 23.a4 Ba7 24.0–0–0 d5 25.cd5 cd5 26.Nc3 d4 27.Ne4? (27.Bc4 Rc6 28.Bf7 Kf7+=) 27...Rc7 (better is 27...Rb6 28.Bc4 Rc6–+) 28.Kb2+= b5 29.ab5 ab5 30.Rc1 Rb7? 31.Rc8 Kf7 32.Rgc1 Bb6+/– 33.Kb3 Nf6 34.Bb5 de3 35.fe3 Ne4 36.fe4 Ke7? 37.Kc4 Rd6 38.Re8 Kf7 39.Rf1 Kg6 40.Re5 Rd2 41.Be8 Kh7 42.h5 Rb8?? 43.Rf8+– g5 44.Bg6 Kg7+– 45.Rb8 Bd8 46.Rd5 Rd5 47.ed5 Ba5 48.e4 g4 49.e5 g3 50.Rb7 Kh8 51.Be4 Kg8 52.d6 Kf8 53.Kd5 Ke8 54.Ke6 g2 55.Rg7 Kf8 56.Rg2 Bd8 57.Rg6 Bg5 58.Rg5! hg5 59.d7 g4 60.d8Q Kg7 61.Qf6 Kg8 62.Qf7 1–0. combijack (1745) – abbujane (1695), gameknot.com, 2009.

6.Bb2 Bf5 7.c4 0–0 8.Nc3 a6 9.Nf3 Nbd7 10.Be2 Ne5 11.d4 Nf3 12.Bf3 Ba7 13.0–0 c6 14.Ne2 Re8 15.Ng3 Bg6 16.Re1 Ne4 17.Be4 Be4 18.Qg4 d5 19.f3 Bg6 20.c5 b5 21.e4 de4 22.fe4 Qf6 23.Rf1 Qe6 24.Qe6 Re6 25.e5 Rf8 26.Rf4 Bb8 27.Raf1 Rfe8 28.h4 (better is 28.Nf5!?+=) 28...f6–/+ 29.h5 (29.ef6 Bf4 Pinning (29...Bf4 Deflection)) 29...fe5 30.de5 Bd3 31.R1f3 Bc4 32.Ne4 Bd5 33.Nd6 Bd6 34.ed6 Bf3 35.Rf3 Rf8 36.Rd3 Rd8 37.Bc3 Rd7 38.Rg3 Kf7?? (better is 38...Kf8–/+) 39.Rg7+= Ke8 40.Rg8 Kf7 41.Rg7 Ke8 42.Rg8 Kf7 43.Rh8 Rh6 44.g4 Ke6 45.Kf2 (better is 45.Rc8+/–) 45...Kd5+= 46.Bb4 a5 47.Ba5 Kc5 48.Bc7 Rhd6 49.Bd6 Kd6 50.Ke3 Ke5 51.Re8 Kf6 52.Ke4 c5 53.g5 Kf7 (53...Kg5 54.Re5 Kg4 55.Rc5=) 54.Re5 Re7 55.g6 hg6 56.hg6 Kf6 57.Re7 Ke7 58.Kd5 b4 ½–½. combijack (1805) – kulicka (1725), gameknot.com, 2012.

6.Bb2 Bf5 7.Nf3 Nc6 8.c4 0–0 9.Be2 Bg6 10.0–0 Re8 11.d4 Bb6 12.Nc3 Ne4 13.Nd2 Nc3 14.Bc3 Qg5 15.Nf3 Qe7 16.Re1 Be4 17.a4 a5 18.Nd2 Bf5 19.Bf3 Qg5 20.Nf1 Rab8 21.Ng3 Ne7 22.Nf5 Nf5 23.Qd3 Nh4 24.e4 Re6 25.g3 Nf3 26.Qf3 Rf6 27.Qg2 h5 28.h4 Qg4 29.e5 Rf3 30.Rac1 de5 31.c5 (31.Re5? Rc3 32.Rc3 Bd4–+) 31...ed4 32.cb6 dc3 (32...Rc3?! 33.bc7 Rc8 34.Rc3 dc3 35.Qd5=) 33.bc7 Rc8 34.Re7 Kh7 35.Re5 Rc7 36.Rg5 Qe4 37.Rh5 Kg8 38.Ra5 c2 39.Ra8 Kh7 40.Ra5 (better is 40.Rd8 Qf5 41.Rd2–/+) 40...Qc6?? (40...Rcc3 41.Rh5 Kg8–+) 41.Rc2+= Rc3 (41...Rg3! 42.Rh5 Kg8 43.fg3 Qc2 44.Qc2 Rc2+=) 42.Rc3 Qc3 43.Qe4 g6 44.Ra8 b6 45.Qe8 Qd4 46.Rd8 Qa1 47.Kg2 Qf6 48.Qg8 Kh6 49.Qf8 Qg7 50.Qd6 Ra7?? (better is 50...Rc4+–) 51.Qb8 (51.Qb8 f5 52.Rh8 Qh8 53.Qh8 (53.Qa7?! Qd8+/–) 53...Rh7 54.Qf6+–; 51.Qb6?! Ra4 52.Rd7 Ra8+–) 1–0. combijack (1765) – nimzo58, gameknot.com, 2012.

5.Nf3 Nc6

6.Bb2 d5 7.d4 Bd6 8.e3 0–0 9.Be2 b6 10.0–0 Bf5 11.Re1 Ne7 12.c3 c5 13.Nh4 Qc7=+ 14.g3 Bh3 15.Bf1 Qd7 16.Bh3 Qh3 17.f3 Ng6 18.Ng6=+ fg6 19.Qe2 g5 20.Qg2 g4?? 21.Qh3= gh3 22.Nd2 h5 23.a4 g5 24.e4 de4 25.Ne4+/– Ne4 26.fe4 Rf3 27.e5 Be7 28.d5+– Raf8 29.d6 Rf2 30.de7 Rg2 31.Kh1 Re8 32.Rad1?? Rb2=+ 33.Rd8 Kf7 34.Kg1? Ke7–+ 35.Re8 Ke8 36.Rf1 Ke7 37.Rf5 (37.Rf5 Rg2 38.Kh1–+). Rudolf – Istvanny, internet, 2007.

6.Bb2 d5 7.e3 0–0 8.h3 Bf5 9.Be2 d4 10.0–0 de3 11.fe3 Ne4 12.Qe1 Bd6 13.Qh4?? (better is 13.Bb5=) 13...Ng3–+ 14.Qd8 Rad8 15.Rf2 Bc2 16.Nc3 Ne4 (16...Ne2 17.Ne2 Be4 18.d4–+) 17.Ne4–/+ Be4 0–1. Anlauf,Wolfgang – Kolkwitz,Klaus (1935), 17OBSen–Rowy Poland, 2008.

5.Nf3 d6

6.Bb2 0–0 7.e3 Nc6 (7...d5 8.Be2=) 8.d4 Bb6 9.Bd3 Bg4 10.0–0 Re8 11.c4 Qd7 (11...Ba5 12.h3 Bh5 13.Bc3=) 12.Nc3 d5 (12...Ba5 13.Nd5 Nd5 14.cd5=) 13.h3 (Better is 13.cd5 Nd5 14.Qc2 Nc3 15.Bh7 Kf8 16.Bc3+=) 13...Bh3? (Better is 13...Bf5=) 14.gh3+– Qh3 15.cd5 (15.Nd5 Qg4 16.Kh1 Nd5 17.cd5 Qh5 18.Kg2 Qg4 19.Kh2 Rad8+–) 15...Ne7 (15...Nd5 16.Nd5 Qg4 17.Kh1 Qh5 18.Nh2 Qd5 19.Kg1+–) 16.Ne5+– c6? 17.d6 Ng6 18.Bg6?? hg6?? 19.Qf3+– Qe6 20.Ne4 Ne4 21.d7 Red8 22.Qe4+– Bc7 23.d5 cd5+/– 24.Qd4 Be5 25.Qe5 Rd7?? 26.Qg7 1–0. Wall,Bill – Tryp, Internet, 2002.

6.Bf6 Qf6 7.h3?? g5 8.c3 b6?? 9.d4+– g4 10.hg4 Qe7 11.e3 Bg4 12.dc5 bc5 13.Be2 Nc6 14.Ng1 Be6 15.Bb5 Bd7 16.Ne2 a6 17.Bc6 Bc6 18.Rh2 Rg8 19.g3 Rd8 20.Nf4 Rg5 21.Rh7 Kd7 22.c4 a5 23.Nh3 Rf5 24.Qg4 Qe6 25.Nd2 Kc8 26.Rf7 Qf7= 27.Ng5?? Qf6–+ 28.Nh7 Qa1 29.Ke2 Bd7 30.Qe4 Re8 31.Qa8 1–0. wee harv – kurt5561, ChessWorld.net, 2005.

4.a3 Nc6

5.Nf3 (-->1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.a3).

5.Bf6? Qf6–+ 6.ab4 Qa1 7.c3? d5 8.d4 Bf5 9.Nd2 Qa3 10.Nb3 Qb2 (10...Qb2 11.b5 Na5–+) 0–1. Bosmans – Davies, email CTON, 1996.

5.Bb2 Ba5

6.c4 0–0 7.Nf3 b6 8.e3 d6 9.Qc2 Bb7 10.Ng5 g6 11.h4 h5 12.Be2 Ne5 13.f4 Neg4 14.Nc3 (14.0–0 Qe8+=) 14...d5 (better is 14...Bg2!? 15.Rg1 Bc6+=) 15.cd5 Nd5 16.Nd5 Bd5? (better is 16...Qd5 17.Bf3 Ne3=) 17.Bg4+– hg4 18.h5 Bg2 19.Rh2 Bh3?? (19...Bd2 20.Qd2 Qd2 21.Kd2 Rad8 22.Ke2 Bd5 23.hg6 f6+–) 20.hg6 (better is 20.h6 Qg5 21.fg5+–) 20...f5 (20...Qe7 21.gf7 Rf7 22.Qg6 Rg7 23.Bg7 Qg7 24.Qe6 Kh8+–) 21.0–0–0 (21.Qc4 Qd5 22.Qd5 Rf7 23.Qf7) 21...Rf6 (21...Qd5 22.Nh3 g3+–) 22.Qc4 Kf8 23.Bf6 1–0. combijack (1805) – themoog (1610), gameknot.com, 2011.

6.e3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.a3 Ba5 5.e3 Nc6 6.Bb2).

6.e3 0–0 7.c4 d5 8.cd5 Nd5 9.Nf3 Re8 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Nc6 7.Bb2 Re8 8.a3 Ba5 9.cd5 Nd5).

5.Bb2 Be7

6.c4 0–0 7.e3 d5 8.cd5 Nd5 9.Nf3 a6 10.Be2 Bf6 11.d4 Re8 12.0–0 Bf5 13.Nbd2 Nb6 14.Rc1 Qe7 15.Re1 Rad8 (15...Qd7 16.Qb3=) 16.Bf1 (16.Ba6 Nb4 17.ab4 ba6+/–) 16...Bg6 (16...Qd7 17.Qb3=) 17.Qb3 (17.Ba6!? Na5 18.Bf1+/–) 17...Qd7 18.h3 h6 19.Bc3 Qc8 20.a4 Nd5 21.Bb2 Na5 22.Qd1 Nc6 23.Ba3 Be7 (23...Nb6 24.Qb3=) 24.Be7+= Nde7 25.Qb3 Rd7 26.Rc5 b6 27.Rcc1 Na5 28.Qa3 Nec6 29.Rc3 Red8 30.Rec1 Qb7 31.Nb3 f6 (31...Nb3 32.Qb3 Be4 33.Nd2+=) 32.Na5+/– Na5 33.Qa2 Bf7 34.Qc2 c6 35.Qf5 Rd5 36.Qe4 Re8 37.Qd3 Ra8 38.Qb1 Rdd8 39.Bd3 Rab8 40.Be4 Bd5 41.Bd5 Rd5 42.e4 Rdd8 43.Re3 White intends e5 43...Qf7 44.e5 Re8 45.Qd3 b5 46.Rce1 Nc4 47.R3e2 fe5 (47...ba4?? 48.e6 Qb7 49.Qc4+–) 48.de5 Rbd8 (worse is 48...ba4 49.e6 Qf4 50.Re4+=) 49.e6 Qf6 (49...Rd3?? 50.ef7 Kf7 51.Re8+–) 50.Qe4 Rd6 51.ab5 ab5 52.Qg4 ½–½. Schiefelbusch,Dirk (2155) – Richter,Kurt (2080), Dortmund op–A, 2004.

6.e3 a6 7.c4 0–0 8.Qc2 d6 9.Nf3 h6 10.h4 Ne5 11.Ne5 de5 12.Be5 Ng4 13.Bg3 g6 14.h5 Bf5 15.d3 g5 16.Nc3 Bf6 17.Rd1 c6 18.Be2 Qa5 19.Rc1 Rad8 20.e4 Bc8 21.Qb2 Bd4 22.Bg4 Bg4 23.f3 Bc8 24.Bf2 (better is 24.Qb4!? Qb4 25.ab4+=) 24...Bf2+= 25.Kf2 Rd3 26.Ne2 Qc5 27.Kg3 f5 28.ef5 Qf5 29.Rcd1?? (29.Rhd1 Rf3! 30.gf3 Qf3 31.Kh2 Qf2 32.Kh1–+) 29...Rf3! 30.Kh2 (30.gf3 Qf3) 30...Rh3! 31.gh3 (31.gh3 Qf2#) 31...Qf2 0–1. combijack (1765) – gajef (1710), gameknot.com, 2010.

6.e3 d5 7.d4 0–0 8.c4 Be6 9.Nd2 Re8 10.Bd3 dc4 11.Nc4 Bc4 12.Bc4= Nd5 13.Qh5+/– Bg5 14.Ne2 Re3?? 15.fe3+– Ne3 16.Qf7 Kh8 17.d5 Nc2 18.Kf1 Qf8 19.dc6 Qf7 20.Bf7 Rf8 21.g3 Rf7 22.Kg2 Ne3 23.Kh3 Rf5 24.cb7 Rb5 25.Rab1 Bf6 26.b8Q! Rb8 27.Bf6 (27.Bf6 Rb1 28.Rb1 gf6 29.Rb7+–; better is 27.Bd4 Re8 28.Be3 Kg8+–) 1–0. Jirovec,Peter – Mair,Josef, Vienna op–B, 2003.

6.Nf3 d5 7.e3 0–0 8.Be2 Na5 9.d3 c5 10.Nbd2 b5 11.c4 bc4 12.dc4 Rb8 13.Be5 Bd6 14.Bd6 Qd6 15.cd5 Nd5 16.Qc2 Nb7 17.0–0 Nf6 18.Nc4 Qe7 19.Nfe5 Bd7 20.Rfd1 Rfd8 21.Bf3 Be8 22.Rab1 Rd1 23.Rd1 Qc7 24.g3 Na5+= 25.Qc3 Nc4= 26.Nc4 Ba4 27.Rc1+= Rb3 28.Qe5 Qe5 29.Ne5 Ra3 30.Rc5 Be8 31.Kg2 Kf8 32.Rc7 a5 33.g4 h6 34.h4 a4 35.Ra7 Rc3 36.g5 hg5 37.hg5 Nh7 38.g6 fg6 39.Be4 Rc5 40.f4+= Nf6 41.Ng6 Kg8 42.Ne7 Kh8 43.Bf5 Bc6 44.Nc6+– Rf5 45.Ra4 g5 46.Ne7 Rc5 47.Ra6 gf4 48.Ng6 Kg7 49.Nf4 Rc3 50.Kf3 Rb3 51.Rd6 Rb5 52.Ne6 Kf7 53.Nd4 Ra5 54.Kf4 Nd5+= 55.Ke4 Ne3 (55...Nf6 56.Kd3+=) ½–½. Kreuzer,Uwe – Ehmsen,Heinrich Eckard, Verbandsliga Nordbaden, 1993.

5.ab4 Ne5

6.Nc3 d5 7.d4 Ng6 8.Nf3 Qd6 9.b5 Bg4 10.e3 Nh4!? 11.Be2 Ng2–+ 12.Kf1 Bh3 13.Kg1 Ne4 14.Ne5?? Nc3 15.Qd3 Ne2 16.Qe2 Nh4 17.Qh5 Qf6 18.f3 g6 19.Ng4 Qe7 20.Qd5 Bg4 21.Re1 Rd8 22.Qe4 Nf3 (22...Nf3 23.Qf3 Bf3–+) 0–1. surfnsuds – marekt, internet, 2005.

6.d4 Ng6 7.e3 0–0 8.Bd3 d5 9.Ne2 Ne4 10.Nbc3 Bg4 11.Ne4+/– de4 12.Be4 c6 13.0–0 Re8 14.Bg6 fg6 15.c3 a5 16.Ra5 Ra5 17.ba5 Qa5 18.Qb3 Kh8 19.f3+– Bc8 20.e4 Qa6 21.Qf7 Rg8 22.c4 Qa2 23.Kf2 b5 24.Rc1 Ba6?? 25.d5 cd5+/– 26.cd5 b4 27.Re1 Bc4 28.Qc7+– Qc2 29.d6 b3+/– 30.d7 Qd3 31.Qc5 b2 32.Qb4+/– Bb3 33.Nd4+– b1Q 34.Rb1 Qb1 35.Qb3 Qb3 36.Nb3 Rd8 37.Nc5 Kg8 38.Ke3 Kf7 39.e5 Ke7+/– 40.e6 Rb8 41.h3 Kd6?? 42.g3 h5?? 43.f4 Ke7 44.Ke4 Rb5 45.Kd4 Rb8 46.Ke5 Rb5? 47.Kd5 g5 48.fg5 g6?? 49.Kc6 Rb8 50.Kc7 Rd8 51.Nb7 Rf8 52.d8Q Rd8 53.Nd8 Ke8 54.Nc6 Kf8 (54...h4 55.gh4 Kf8 56.Kd7 Kg7 57.e7 Kf7 58.e8Q Kg7 59.Ne7 Kh7 60.Qg8#) 1–0. themonkey – Prdola, GameColony.com, 2002.

6.d4 Ng6 7.e3 d6 8.c3 Be6 9.Nf3 0–0 10.Be2 Re8 11.0–0 Ne4 12.Nfd2 Bf5 13.Ne4 Be4 14.Nd2 Bf5 15.f3?? (better is 15.b5!?+=) 15...d5 (better is 15...Re3!? 16.Ne4 Nf4–+ (16...Be4?! 17.fe4 c6 18.Qc2=+)) 16.e4=+ de4 17.fe4+/– Be4 18.Ne4 Re4 19.Bc4 Re7 20.Qf3 Nh4? 21.Bf7+– Kh8 22.Qg4 Re3 23.Qf4 Qe7 24.d5 Re2 25.Be6+/– Rg2 26.Kh1 Ng6 27.Qf5 Rf8 28.Qe4 Rgf2 29.Rg1 a6 30.Rg6 hg6–+ 31.Qg6 R2f6 32.Qh5 Rh6 33.Qe5 Qh4 34.h3?? Rf3–+ 35.Kg2 Rf2 36.Kg1?? Rg6 37.Kh1 Re6 38.de6?? Qh3 (39.Kg1 Qg2) 0–1. maxum – brf68, Live Game Caissa's Web, 2004.

6.e3 0–0 7.d4 Nc6 (7...Ng6 8.Nf3=) 8.b5 Ne7 9.Bd3 d5 10.Nf3 Ne4 (10...Bf5 11.0–0=) 11.0–0 Bf5 12.Qe2 Re8 13.Nfd2 (13.Nh4 Qd7+=) 13...Nd6 14.Bf5 Nef5 15.Qf3 c6 16.bc6 bc6 17.Rc1 (17.c4 dc4 18.Ra4 Nh4+=) 17...Qg5= 18.c4 Ne4 19.g3 (19.Rc2 Nfd6=) 19...Nd2 (19...Re7 20.Ra2=) 20.Nd2 Nd4 21.ed4 Qd2 22.cd5 cd5 23.Rc7 Rf8 24.Qd5 Rad8 25.Rd7 Rd7 26.Qd7 a6 27.Qd5 Qd3 28.h4 (28.Re1 Qb5 29.Re5 Qd5 30.Rd5 Rb8=) 28...h6 29.Kg2 Qg6 (29...Rb8 30.Re1=) 30.Ra4 Qb6 31.Qc5 1–0. forsetinn (2470) – nestorius (2020), gameknot.com, 2015.

6.e3 Qe7 7.b5 0–0 8.d4 Ng6 9.Nf3 d5 10.Nbd2 Bf5 11.Be2 c6 12.bc6 bc6 13.Ra6 c5 14.dc5 Qc5 15.Qa1 Rfc8 16.Nd4 Ne7 17.c4 Bg4 18.f3 Bd7 19.Kf2 Nf5 20.N2b3 Qe7 21.Nf5 Bf5 22.Nd4 Bd7 23.Rc1 Re8 24.Qa3 Qa3 25.Ra3 dc4 26.Ra6 Nd5 27.Rc4 Bb5?? (better is 27...Ne3 28.Rc7 Bc8+=) 28.Nb5+– 1–0. forsetinn (2075) – rc_21 (2000), gameknot.com, 2013.

4.a3 d6

5.Nf3 de5–/+ 6.ab4 Qe7 7.Nc3 e4–/+ 8.Ng5 h6 9.Nh3 Qb4 10.e3 a5 11.Ra4 Qe7 12.Nf4 0–0 13.Bc4 Bd7–/+ 14.Ra2 Qc5 15.Qe2 Bg4 16.f3 ef3 17.gf3 Bf3 18.Qf3 Qc4 19.Qb7 Nbd7 20.Ra4 Qc5 21.0–0 c6 22.Nd3–/+ Qg5 23.Kh1 Nc5 24.Nc5 Qc5 25.Qb3 Rfe8 26.Rc4 Qd6 27.Rd4 Qc7 28.Kg1 c5 29.Nb5 Qe5 30.Ra4–/+ Red8 (30...Red8 31.Rf2 Rd7–+) 0–1. Vettenburg,Louis – Van Praet,Jan, corr Belgium, 1984.

5.Bb2 Ba5

6.e3 0–0 7.c4 Re8 8.Be2 Nc6 9.Nf3= Bd7 10.0–0 a6 11.Nc3 Ne5 12.d4 Nf3 13.Bf3 Be6 14.Qd3 c6 15.d5 Bc3 16.Bc3 cd5 17.cd5 Bd7 18.Rfc1 Bb5 19.Qf5+/– Nd7 20.a4+– g6 21.Qf4 Bd3 22.Qd6 Rc8 23.Bd4 h5 24.h3 Bf5 25.Qf4 Nf8 26.Bh5! (26.Bh5 Rc1 27.Rc1+–) 1–0. Kreuzer,Uwe – Grehl,Siegfried, corr SOK–91–72, 1991.

6.e3 0–0 7.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 d6 5.Bb2 0–0 6.a3 Ba5 7.e3).

6.e3 Nc6 7.c4 0–0 8.Nf3 Bg4 9.Be2 Re8 10.0–0 Ne5 11.Nc3 (11.Ne5 Be2 12.Nf7 Bd1 13.Nd8 Be2 14.Nb7 Bf1 15.Na5 Bd3 16.Bf6 gf6+=) 11...c6 (11...Bf3 12.gf3 d5 13.d3+=) 12.d4 (12.Ne5!? Be2 13.Nc6 (13.Qe2?! de5 14.Rfd1 Qd6=) 13...bc6 14.Ne2+/–) 12...Ng6 13.h3 Bf3 14.Bf3 d5 15.cd5 Bc3 16.Bc3 Nd5 17.Bd2 Nh4 18.e4 Nf3 19.Qf3 Ne7 20.Bc3 Ng6 21.Rad1 Qe7 22.Rb1 b5 23.e5 Qa3 24.Qc6 Rec8 25.Bb4 Qd3 (25...Rc6?! 26.Ba3 a6 27.Rfd1=) 26.Qd5 a5 (26...Nf4 27.Qb7 Rcb8 28.Qc6 Ne2 29.Kh1 Nd4 30.Qd6–/+) 27.Bc5 Nf4 28.Qb3 Qe4 29.f3 Qg6 30.g4 Nh3 31.Kg2 Nf4 32.Kg3 Ne6 33.Qb5 Nc5 34.dc5 Qc6 (34...a4 35.Rfc1–/+) 35.Rfc1 (35.Qc6 Rc6 36.Rfc1 a4=) 35...Qb5 (better is 35...Qc7!? 36.c6 a4+=) 36.Rb5+= a4 37.c6 Ra6 38.c7 Re6?? (better is 38...Raa8+=) 39.Rb8+– Ree8 40.Rc8 Rc8 41.Kf4 (better is 41.Rd1 Kf8 42.Rd8 Ke7 43.Rc8+–) 41...Kf8+= 42.Ke4 Ke7 43.Ra1 Rc7 44.Ra4 ½–½. combijack (1755) – redjester (1740), gameknot.com, 2010.

6.e3 Be6 7.c4 Nbd7 8.Nf3 Nb6 9.Be2 Nc4?? (better is 9...c6 10.Qb3 Qe7=) 10.Bc4+– Bc4 11.Qa4 b5 12.Qa5 Ne4 13.d4 0–0 14.Nbd2 Nd2 15.Nd2 Bd3 (better is 15...Qg5 16.g3 Qd5+–) 16.Qc3 Bf5 17.0–0 Qg5 18.Nf3 Qe7 19.d5 f6 20.Qd4 g5 21.Rac1 h6 22.Rfe1 a5 23.e4 Bg6 24.h3 h5 25.Ng5! Rac8 26.Ne6 Rf7 27.Re3 h4 28.Rf3 b4 29.ab4 ab4 30.Rf4 b3 31.Rg4 Kh7 32.Rh4 Kg8 33.Rc3 Rh7 34.Rh7 Kh7 35.Rb3 c5 36.Qe3 c4 37.Ra3 Bh5 38.Ra7 (38.Ra7 Rc7 39.Nc7+–) 1–0. Kiecken,J (1975) – Griggio,Julie, 8th Open, Saint–Chely d'Aubrac FRA, 2008.

6.e3 Bf5 7.Nf3 0–0 8.Be2 c5 9.Bd3 Bd3 10.cd3 Nbd7 11.0–0 Re8 12.a4 Ne5 13.Qe2 Ng6 14.d4 Rc8 15.dc5 dc5 16.Na3 a6 17.Nc4 Nf4 18.Qd1 N4d5 19.Qb3 Bb4 20.a5 Ne4 21.Rfc1 Rc6 22.Nce5 Rce6 23.d3 Nef6 24.d4 cd4 25.Bd4 Ne4 26.Bb2 Nd2? (26...Ba5 27.Rd1 Nef6+/–) 27.Nd2+– Bd2 28.Rc5 Nf6 (28...Re5?? 29.Be5 Nf6 30.Rd1 Re5 31.Re5+–) 29.Qb7 R6e7 (29...Qe7 30.Rc7 Qb4 31.Nf7+–) 30.Qa6 Ne4 31.Rc2 Qd5 (31...Re5?? 32.Be5 Nf2 33.Bd4+– (worse is 33.Kf2 Be3 34.Kf1 Qd7+–)) 32.Rc8 Re5 (32...Nd6 33.Re8 Re8+–) 33.Be5 Qe5 34.Re8 Qe8 35.Qb6 Ba5 36.Qa5 g6 37.Qa8 Qa8 38.Ra8 Kg7 39.f3 Nd6 40.Kf2 Kf6 41.e4 Ke5 42.Ra6 Nc4 (42...Ke6 43.Ke3+–) 43.Rc6 Kd4 44.Rf6 Ne5 45.Rd6 Kc4 46.Ke3 Kc3 (46...f6 47.Rf6 Kc5 48.Kf4 Nd3 49.Kg5+–) 47.Kf4 Nd3 (47...Nc4 48.Rf6 h6 49.Rf7 g5 50.Kg3 Kd4+–) 48.Rd3! Kd3 49.Ke5 g5 50.Kf6 Kd4 51.Kg5 Ke3 52.Kf6 1–0. forsetinn (2345) – amstersofia (2130), gameknot.com, 2015.

6.Nf3 0–0 7.e3 Re8 8.Be2 =.

5.Bb2 Bc5

6.c4 Nc6 7.e3 Bf5 8.Nc3 0–0 9.Nf3 Re8 10.Be2 Ne5 11.d4 Nf3 12.Bf3 Bb6 13.Bb7 Rb8 14.Bc6 Bd7 15.Bd7 Qd7 16.Ne2 Ne4 17.0–0 d5 18.cd5 Qd5 19.Qc2 c5 20.Nf4 Qd6 21.Rad1 cd4 22.Bd4 Bd4 (better is 22...Qa3!? 23.Nd5 Rbc8+=) 23.Rd4+/– Qe7 24.Nd5 Qe5 25.f4 Qh5? (better is 25...Qf5+/–) 26.Nc7+– (26.Re4?! Qd5 27.Re8 Re8+/–) 26...Re7? (26...f5 27.Ne8 Re8+–) 27.Re4 (27.Re4 Qg6 28.Rb1+– (28.Re7 Qc2 29.Nd5 Kf8–+)) 1–0. combijack (1765) – julius_cesar (1690), gameknot.com, 2010.

6.e3 (--> 4.a3 Bc5 5.e3 d6 6.Bb2).

5.ab4? de5

6.Nc3 Bf5 7.e3 0–0 8.Nge2 Nc6 9.Ng3 Bg6 10.Ra4 Qd6 11.b5 Nb4 12.e4 a6 13.ba6 Na6 14.h4 Nc5–/+ 15.Ra8 Ra8 16.h5 Be4–+ 17.h6 g6 18.f3 Bc6 19.Bb5 e4 20.Nf1 Bb5 21.Nb5 Qb6 22.Nc3 Qb2 23.Kf2 Ra1 24.Qe2 Qc2 25.Ne3 Nd3 26.Kg3 Rh1 27.Nc2 Nh5 (27...Nh5 28.Kg4 Ne5 29.Kg5 f6#) 0–1. Foch,Louis – Abramo,Pierluigi, internet, 1998.

6.c4 0–0 7.e3 c6 8.Nc3 Nbd7 9.Nf3 Qe7 10.Qb1 e4 11.Nd4 Nb6 12.Be2 c5 13.bc5 Qc5 14.Ne4 Ne4 15.Qe4 Nc4? 16.Nb3+– Nd6? 17.Nc5 Ne4 18.Ne4 b6 19.Bf3 Rb8 20.Ra7 Bf5 21.Ke2 Rfe8 22.Nd6 Rf8 (22...Bd3 23.Kd3 Red8+–) 1–0. Fernandez_Esteban,Rodriguez – Morello,Stefano, internet, 2002.

6.c4 Qd4 7.Qa4 Bd7 8.Qa2 Nc6 9.e3 Qd6 10.c5 Qe7 11.b5 Nb4 12.Qc4 Nbd5 13.Nc3 Be6 14.Qa4 (14.Nd5!? Bd5 15.Qc2+=) 14...Nc3–/+ 15.dc3 Qc5 16.c4 0–0 17.Nf3 Bg4 18.Nd2 Rfd8 19.h3 Qd6 20.Qc2 Bf5 21.Qb2 Ne4 22.Ne4 Be4 23.f3 Bg6 24.Be2 Qb6 25.Qe5 Re8 26.Qd4 (26.c5 Qb5 27.Qd4–/+ (27.Bb5? Re5 28.e4 Rc5–+)) 26...Re3 (better is 26...Qd4 27.ed4 Bd3–+) 27.Qb6+= cb6 (27...ab6?? 28.Ra8 Re8 29.Re8) 28.Kf2 Re7 29.Rad1 (29.Rhd1 Kf8+=) 29...Kf8 30.Rd2 a5 31.ba6 ba6 32.Ra1 a5 33.Rb2 Re6 34.Ra3 f6 35.Rab3 a4 36.Rb6?? (better is 36.Ra3–/+) 36...Rb6–+ 37.Rb6 a3 0–1. Alldrix – Peb, playchess.de, 2002.

6.e3 0–0 7.Bc4 Nc6 8.c3 (8.b5!? Nb4 9.Nc3=+) 8...a5 (8...e4 9.d4 ed3 10.Qd3 Qd3 11.Bd3 Rd8=+) 9.f3 (9.b5 Ne7–/+) 9...Qd6 (9...e4 10.fe4 Qe7 11.Nf3–/+) 10.e4 (10.b5 Ne7–/+) 10...b6 (10...Be6!? 11.Be6 fe6–/+) 11.Ne2–/+ Re8 (11...Be6 12.Be6 Qe6 13.b5=+) 12.b5=+ Nd8 (12...Ne7 13.Qb3 Be6 14.Be6 fe6 15.d4 ed4 16.Nd4=) 13.Ra4 (13.d4 Ne6=) 13...c5 (13...h5 14.0–0 h4 15.h3=+) 14.0–0 (14.d3 Ne6=+) 14...Nb7 (14...Ne6 15.d3=+) 15.d3 Qd7 16.f4 (16.Na3 h6=+) 16...Nd6 17.fe5? (better is 17.Na3=+) 17...Nc4–+ (17...Re5?! 18.Nd2=+) 18.Rc4 Re5 (better is 18...Ng4!? 19.d4 Qb5–+) 19.Na3=+ Ng4 20.Nc2? (better is 20.Qd2!?=+) 20...Qb5–+ 21.Nf4 Qd7 22.Nd5 Qd6 23.Qf3 Rf5! 24.Nf4 Ne5 25.Qg3 Nc4 26.ef5 Bf5 27.Ne1 Nd2 28.Rf2 Nb1 29.Nh5 Qg3 30.Ng3 Bg6 31.c4 Nc3 32.Rc2 Re8 33.Rc3 Re1 34.Kf2 Re5 35.Rb3 Kf8 36.Rb6 Bd3 37.Ra6 Bc4 38.Ra5 Ke7 39.Ra4 Bd3 40.Ra7 Ke6 41.Kf3 h6 42.Rc7 h5 43.Rc6 Kd5 44.Rc7 h4 45.Rd7 Kc4 46.Nh1 g5 (46...g5 47.Rf7 Re1–+) 0–1. marekt – virulent, GameColony.com, 2002.

6.e3 0–0 7.d3 Be6 8.Nf3 Bg4 (8...Qd6 9.c3+=) 9.Be2= Nbd7 (9...Qd6 10.c3=) 10.0–0 Re8 11.c4 1–0. Goldmund,Heike – Benone,Mateia, FICGS, 2015.

6.Nf3 e4 7.Ng1 Be6 8.e3 0–0 9.d4 ed3 10.cd3 Nd5 11.b5 Qf6 12.Nd2 Bg4 13.Ngf3 Nd7 14.Ne4 Qb6 15.d4= f5 16.Bc4+= c6 17.Nc3 N7f6 18.h3 Bh5 19.g4 fg4=+ 20.hg4 Bg4 21.Rg1 Kh8 22.Bd5 Nd5?? 23.Nd5+– Bf3?? 24.Nb6 Bd1 25.Na8 Bf3 26.Ra7 cb5 27.Rg5 Bc6 28.Nc7 b4 29.Ra8 Ra8 30.Na8 b3 31.Kd2 b5 32.Kc3 b2 33.Kb2 Ba8 34.Rb5 (34.Rb5 g5 35.Rb8 Kg7 36.Ra8+–) 1–0. bentengutama (1955) – karpovitch (2050), net–chess.com, 2003.

5.Bc3 Bc3=+

6.dc3 0–0 7.Nd2 Nc6 8.g4? (Better is 8.e3!?–/+) 8...Ng4–+ 9.Bg2?? (Better is 9.Ngf3–+) 9...Qh4 10.Ndf3 (10.Ne4 Ne3 11.Qd3 Ng2 12.Kf1–+) 10...Qf2 (11.Kd2 Ne3–+) 0–1. ZX – Wall,Bill, Internet, 2002.

6.dc3 0–0 7.Nd2 Re8–/+.

6.dc3 0–0 7.e3 Nc6–/+.

6.Nc3!? d5 7.e3=+.

5.Bd4 Ba5

6.Bc3 Nc6 7.g3 Bb6 8.e3 0–0 9.Bg2 Re8 10.Qc1 Bf5 11.Qb2 Qe7 12.Bf6 Qf6 13.Qf6 gf6 14.d3 Bd4 15.c3 Bb6 16.d4 Nd4 17.cd4 Bd4 18.Bb7 Rab8 0–1. boko46 (1650) – hahaha (1825), gameknot.com, 2010.

6.e4 0–0 7.Bc3 Bb6 8.d3 Be6 9.Nf3 –/+.

6.e4 Qe7 7.Qe2 Nc6 –+.

5.Bf6 Qf6

6.c3 Ba5 7.Qa4 Nc6 8.e3 a6 9.Bd3 –/+.

6.c3 Ba5 7.d4 0–0 (8.e3 d5=+). Ridgereeno – color1972, ChessWorld.net, 2005.

6.c3 Ba5 7.e3 Nc6 8.Nf3 Bg4 9.Be2 Bf3 10.Bf3 Ne5? (better is 10...0–0+=) 11.Qa4+– c6 12.Qa5 Nf3 13.gf3 Qf3 14.Rf1 0–0 15.Qg5 Rae8 16.Rg1 g6 17.d4 c5 18.Nd2 Qc6 19.d5 Qa4 20.h4 Re5 21.Qg2 Rd5?? (better is 21...b5+–) 22.Qd5 1–0. combijack (1760) – apo23m5n (1635), gameknot.com, 2011.

6.c3 Ba5 7.g3 0–0–/+ 8.Bg2 Nc6 9.e3 Re8 10.Qa4 Bd7–/+ 11.Qb3 Ne5 12.Qb7? Nd3–+ 13.Ke2 Qf2?? 14.Kd3+/– Bf5 15.Kc4 c6 16.Bc6 Rab8 17.Qb8 Qf1 (17...Qf1 18.d3 Qd3 19.Kb3 Qd1 20.Ka2 Rb8 21.Ba4 Bb1 22.Rb1 Qb1#) 0–1. Jones,Michael – Gazen,Louis, IECG, 2002.

4.a3 Be7

5.Bb2 Nc6 6.e3 Secures d4 6...d5 7.c4 White is behind in developement (7.Nf3 Bf5=) 7...0–0 8.Nf3 Bg4 Black has a very active position (8...dc4 9.Bc4 Na5 10.Be2=) 9.h3 White threatens to win material: h3xg4 (9.cd5 Nd5 10.Nc3 h6=) 9...Bh5 (9...Bf3 10.Qf3 d4 11.Be2+=) 10.Nc3 White should quickly conclude development. (10.cd5 Nd5 11.Be2 Qd6=) 10...dc4 11.Bc4 Ne5 Deflection: f3 12.Be2 (12.Ne5 Bd1 Deflection Pinning) 12...Nf3 13.Bf3 Bf3 14.Qf3 Qd7 (14...Qd3 15.e4 (15.Qb7?? that pawn is deadly bait and will cause White grave problems 15...Rab8 16.Qa7 Rb2–+) 15...Qc2 16.Rb1=) 15.Qe2 Qc6 Black threatens to win material: Qc6xg2 16.0–0 Rfd8 17.d4 Ne4 18.Ne4 Qe4 19.Rac1 c6 20.f4 (20.f3 Qg6=) 20...Bf6 21.Qf3 White threatens to win material: Qf3xe4 21...Re8 22.Qe4 Re4 23.Rf3 Rae8 24.Re1 (24.Kf2 Be7=) 24...c5 Black threatens to win material: c5xd4 (24...Bd4 25.Bd4 Rd4 26.ed4 Re1 27.Kh2–/+) 25.Rc1 cd4 (25...b6 26.Rc4+=) 26.ed4 Bd4 27.Bd4 Rd4 28.Rb3 0–1. Kukel,Attila – Sremanak,Slavomir, SVK–ch U12 Slovakia, 2001.

5.Bb2 d5 6.e3 c5 7.Nf3 Nc6 8.Be2 0–0 9.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Be2 d5 7.Nf3 c5 8.0–0 Nc6 9.Bb2).

5.Nc3 d5 6.Nb5 Na6 7.e3 0–0 8.Nf3 Ng4 9.Bc3 c6 10.Nbd4 Nc5 11.h3 Nf6 12.d3 Na4 13.Bd2 c5 14.Nb5 a6 15.Nc3 Nc3 16.Bc3 b5 17.g3 b4 18.Be5 Nd7 19.Bb2 ba3 20.Ra3 Qb6 21.Rb3 Qa5 22.Qd2 Qa4 23.Bg2 c4 24.Qc3?? Bf6–+ 25.Qb4 Qa2 26.dc4 dc4 27.Qc4 Bb2 28.Qc7 a5 29.0–0 a4 30.Rb5 Nf6 31.Rd1 Be6 32.Ne1 Rac8 33.Qd6 Bc3 34.Rbb1 Be1 35.Re1 Qc2 36.e4 Rfd8 37.Qa3 Rd3 38.Qa1 a3 39.e5 Nd5 40.Be4 Nc3 41.Bd3 Qd3 42.Rb4 Ne2 43.Kh2 Bd5 44.Rg4 Qf3 45.Rg7 Kg7 46.e6 f6 47.Qf6 Kf6 48.Rg1 Qf2 49.Rg2 Qg2# 0–1. Confente,Giuseppe – Buss,Michael, corr ICCF TT/4/90–6, 1990.

5.Nc3 d6 6.Bg3 0–0 7.Nf3 Nc6 8.e4= Re8 9.Bc4 Ne4 10.Ne4 d5 11.Bd5 Qd5–+ 12.d3 Bg4 13.h3 Bf3–+ 14.Qf3 Bf6?? 15.0–0+/– Kh8 16.Nf6 Qf3 17.gf3 gf6 18.Bc7 Rac8 19.Bg3 Nd4 20.c4 Nf3 21.Kg2 Nd4 22.Rfe1 Re6 23.Rab1 b6 24.a4 Rg8 25.Kh2?? Nf3–+ (26.Kh1 Re1 27.Re1 Ne1–+) 0–1. Perrotta,John Zach – Kis_Kos,Laszlo, FICGS, 2007.

5.d3 c5 6.e4 Nc6 7.Bf4 d5 8.e5 Qc7 9.ef6 Qf4 10.fg7 Qe5 11.Ne2 Qg7 12.c3 Bg4 13.h3 Be2 14.Qe2 0–0 15.Qf3 Bf6 16.Qg4 b5 17.Qg7 Bg7 18.Ra2 Rfe8 19.Be2 d4 20.cd4 Nd4 21.Nc3 b4 22.ab4 cb4 23.Ne4 b3 24.Rd2 f5 25.Ng3 Nc2 26.Kd1 Rac8 27.Bf3 b2 28.Bd5 Kf8 29.Ba2 Na3 30.Ne2 Rb8 31.f4 b1Q 32.Bb1 Rb1 33.Nc1 Rc8 (33...Rc8 34.Ke2 Rbc1 35.Rc1 Rc1–+) 0–1. Suwara,Kazimierz – Bertel,Michael (1745), Telechess, 2003.

5.d3 d5 6.e3 c5 7.Nf3 0–0 8.Be2 Nc6 9.0–0 Ne5 10.Ne5 Bd6 11.Nf3 Bd7 12.h3 Qe7 13.Re1 Rfe8 14.Nbd2 Bc6 15.c3 Rad8 16.Rb1 c4 17.d4 (17.dc4!? Ne4 18.cd5 Nf2 19.Qc1 (19.Kf2?? Qe3 20.Kf1 Bg3 21.Ne4 Re4 22.Qd4 Rd4 23.Nd4 Qf2) 19...Qe3 20.Ne4 Nh3 21.Kf1 Qe4 22.dc6–+) 17...Ba3 18.Qc2 Bd6 19.Ng5 h6 20.Ngf3 b5 21.Ra1 Bc7 (21...Ne4 22.Ne4 de4 23.Nd2–+) 22.Ra7 (22.Ra6 Bb6–/+) 22...Bh2!–+ 23.Kh2 (23.Nh2 Qa7 Discovered attack; 23.Kh2 Qa7 Discovered attack) 23...Qa7 24.Ne5 Qc7 25.h4 (25.Kg1 Ra8–+) 25...Ra8 26.g3 Ne4 27.Kg2 (27.Rb1 Ra3 28.Ne4 de4–+) 27...Nd2 (27...Re5!? 28.de5 Nc3 29.Bf3 Qe5 30.Nb1–+) 28.Qd2 Ra3 29.f4 (29.Bf3 Rea8–+) 29...Rea8 30.Qb2 Rb3 31.Qc2 (31.Qd2 Raa3 32.Rc1 b4 33.cb4 Re3–+) 31...Raa3 32.Bf3 (32.Bh5 Rc3 33.Qf5 Be8–+) 32...Rc3 33.Qf5 Re3 34.Nd7 (34.Re3 Re3 35.Kf2–+) 34...Re1 (better is 34...Bd7 35.Re3 Ra2 36.Re2 Re2 37.Be2 Bf5 38.Kf2–+) 35.Nf6 (35.Ne5–+) 35...gf6 36.Bh5 Ra2 37.Kf3 Rf1 38.Kg4 Bd7 0–1. Damasio,Fabio – Law,Steve (1870), TE.2004.P.01708, 2004.

5.d3 d6 6.Bb2 Nc6 7.e4 Ne5 8.Be2= 0–0 9.h3 h6 10.f4 Ng6 11.f5= Nf4 12.Bf3+/– N6h5 13.Bh5 Bh4 14.Kf1+– Qg5 15.Bf3 Qg3 16.Qd2 Bf5 17.ef5 Rae8 18.Nc3 Re2 19.Ne4 Rd2+/– 20.Ng3 Bg3 21.Ne2 Ne2–/+ 22.Be2 Re8 23.Bf3 Rf2 24.Kg1 Rc2 25.Bd4 c5 26.Bc5 dc5 27.h4 Re3 28.Rh3 Be5 29.Rb1 b6 30.Kf1 Rd3 31.Be4 Rh3 32.Bc2 Ra3 33.Rd1 Bd4 (33...Bd4 34.Re1 Kf8–+) 0–1. Zuckerbaecker – Neumann, Vienna, 1898.

5.d4 0–0 6.h3 c5 7.e3 Nc6 8.Bh2 cd4–/+ 9.ed4 Re8 10.Be2 Ne4 11.f3?? Bh4–+ 12.Kf1 Nf2 13.Qe1 Nh1 14.g3 Nd4 15.Ra2 Nf5 16.gh4 Ne3 0–1. Conveyor – Netsurferdude, ChessWorld.net, 2005.

5.d4 d5 6.e3 Nbd7 7.c4 Ne5 8.de5 =.

5.Bf4 0–0 6.Nf3 Nh5 7.Bg3 f5 8.Be5 =+.

5.Bf4 c5 6.Nc3 d5 7.Nf3 0–0 8.Nb5 =.

5.Bf4 c6 6.e3 d5 7.Nf3 0–0 8.Be2 =.

5.Bf4 d5 6.Nf3 0–0 7.e3 c5 8.d4 =.

5.Bf4 Nh5 6.Be5 Nc6 7.Bb2 Nf6 8.Nf3 =.

5.Bf6 Bf6 6.Nc3 0–0 7.e3 Nc6 8.Nf3 d5 9.Bd3 Bg4 10.Be2 Bf5 11.h3 Qd6 12.d3 Bc3 13.Kf1 Ba1 14.Qa1 Rad8 15.Ng5 Ne5 16.g4 Bd7 17.Nf3 Ng6 18.h4 Bg4 19.h5 Ne7 20.h6 gh6 21.Qc1 Bf5 22.e4 de4 23.de4 Be4 24.Rh6 Ng6 25.Qg5 Bc2 26.Ne5 Qe5 27.Qe5 Ne5 28.Kg2 c5 29.Rh5 Rfe8 30.Bc4 Nc4 31.Rc5 Na3 32.Kg3 Rd2 33.f4 Be4 34.Ra5 Rg2 35.Kh3 Ra2 36.Ra7 b5 37.Rc7 h5 38.Kh4 Bf3 39.Kg5 Nc4 40.Kf6 Re6 (41.Kg5 Rg2 42.Kh4 Re1 43.Rc8 Kg7 44.Rg8 Kg8 45.f5 Rh1#) 0–1. TD_6 – babylyub, ICS rated light match, 1998.

5.g3 Nc6 A) 6.d4 Ne5 7.de5 Ng4 8.Qd4 d6 9.ed6 Bf6–/+; B) 6.Bb2 0–0 7.Bg2 d5 8.Nf3 Re8 9.0–0 Be6=+.

5.g4 0–0 6.Bf6 Bf6 7.f4?? Bh4 0–1. pauldopson – mwojo (1745), net–chess.com, 2003.

5.h3 Nc6 6.Bf6 Bf6 7.Ra2 d5 8.Nf3 Be6 9.g4 g5 10.e3 Qe7 11.Bb5 Qc5 12.a4 a6 13.d4=+ Qb4 14.Kf1?? ab5–+ 15.Nfd2 ba4 16.c3 Qb5 17.Kg1 h5 18.Na3 Qd3 19.Nab1 hg4 (19...hg4 20.hg4 Rh1 21.Kh1 b5–+) 0–1. wee harv – coolerdude, ChessWorld.net, 2005.

5.Bb2 0–0

6.Nc3 Nc6 7.Nf3 b6 8.e4 Bb7 9.Be2 d5 10.e5 Nd7 11.d4 Bg5? 12.0–0 f5? 13.Nd5+– Na5 14.c4 c5 15.Qd3 Bd5? 16.cd5+– c4 17.Qc3 b5?? 18.Ng5 Qg5 19.Qa5 a6 20.Bf3 h5 21.d6 h4 22.Ba8 Ra8 23.Qc7 h3 24.g3 Rd8 25.e6 f4 26.e7 Qd5 27.f3 Re8 28.Qd7 Qa8 29.Qe6 Kh8 30.d7 fg3 31.hg3 Kh7 32.de8Q Qe8 33.Qh3 Kg6 34.d5 Qe7 35.Qg4 Kh7 36.Rae1 (36.Rae1 Qf7 37.Qh4 Kg8 38.Re7+–) 1–0. icewater – crazydog, Caissa.com, 2004.

6.d3 Nc6 7.Nd2 d6 8.e4 Be6 9.g3 Rb8 10.Bg2 Bg4 11.Ngf3 Qd7 12.0–0 Rfe8 13.c3 d5 14.e5= Ne5?? 15.d4?? Nf3 16.Nf3 c5 17.Qc2 Qf5 18.Qf5 Bf5 19.Rfe1 Bd6 20.Re8 Re8–+ 21.Re1 Re1 22.Ne1 Be4 23.Be4 Ne4 24.Nd3 c4 25.Nb4 Bb4 26.ab4 a6 27.f3 Nd2 28.Kf2–/+ Nb3 29.h4 Kf8 30.Ke3 Ke7 31.g4 h6 32.f4 f6 33.Ke2 g6 34.Ke3 Ke6 35.Ke2 f5 36.g5 h5 37.Kd1 (37.Ba3 b6–+) ½–½. Goudriaan,Etienne – Schippers,Maurice, NED–ch U12 Rijswijk, 2001.

5.Nc3 0–0

6.e3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Nc3).

6.Bg3 d5 7.e3 c5 8.Nf3 Nc6 9.Bd3 c4 10.Be2 Ne4 11.Ne4 de4 12.Ne5 Ne5 13.Be5 Qd5 14.Bd4 f5 15.d3 cd3 16.cd3 ed3 17.Bf3 Qc4 18.Rc1+= Qa6 19.Bd5 Kh8=+ 20.0–0 Bd7 21.Qb3 Bc6 22.Bc6 bc6 23.Rfd1 c5 24.Bc5 Rab8 25.Bb4 Rfd8 26.Qc4 Qc4 27.Rc4 Bb4 28.ab4 Kg8 29.Kf1 Rb5 30.Ke1 Rdd5 31.g3 h6 32.h3 a6 33.f3 Rd8 34.Ra1 d2= 35.Kd1 Rb6 36.g4 fg4 37.hg4 Rg6 38.Rd4 Rd4 39.ed4 Rd6 40.d5 ½–½. Karl Gill – PatzerBernie2, ChessWorld.net, 2009.

5.Nc3 Nc6

6.d4 A) 6...0–0 7.Bf6 Bf6 8.e3 Re8 9.Nf3 d6 10.Nd5=; B) 6...d5 7.Bf4 a6 8.e3 Ra7 9.Bd3 0–0 10.Nge2=; C) 6...d6 7.Bg3 0–0 8.Nf3 d5 9.e3 Bf5 10.Bd3=; D) 6...Ne5 7.de5 Ng4 8.Nf3 c6 9.Qd2 Qc7 10.Qd4–/+.

6.Nf3 Ne5–/+ 7.Ne5 0–0 8.e4 d5 9.Nd5 Ne4 10.Bc4 Bc5 11.d4= Nf2 12.Kf2+/– Qh4 13.Ke3 Re8 14.dc5 Re5 15.Kd3 Bg4 16.g3 Qh5 17.Qd2 Be6 18.Ne7 Kh8 19.Qg2 Rd8 20.Kc3 Rc5 21.Kb2 Qe5 22.c3 Bc4 23.a4 Be2 24.Nd5 Rdd5 25.Ra3 Rd2 (26.Kb1 Bd3 27.Kc1 Rg2 28.Rb3 Qe3 29.Kd1 Qd2#) 0–1. Lindberg,Rune – Van den Braak,Jelle, corr 3GMM–16, 1995.

6.Nf3 Ne5 7.Ne5 d6 8.Nf3 0–0 9.g3 Bd7 10.Bg2=+ Bc6 11.0–0 Re8 12.d3 Nd7 13.d4 Bf6 14.e3 Nb6 15.Re1 a5 16.Ne2 a4 17.Nf4 Be4 18.c3 d5 19.Nd2 Bg2 20.Kg2 Qd7 21.Qc2 g6 22.Nd3= Qf5 23.c4? c5 24.Rab1= Nc4 25.Nc4 dc4 26.Nc5?? Qc2–+ (26...Qc2 27.Rec1 Qa2–+) 0–1. coloplayah (2145) – materialkiller (2000), net–chess.com, 2006.

6.Bf4 d5 7.Nb5+= Bd6 8.e3?? Bf4–/+ 9.ef4 0–0 10.Qf3 Bg4 11.Qg3 Re8 12.Ne2 Qe7 13.f3 Bf5 14.Rc1 a6 15.Rb1 ab5 16.Rb5 Nd4 (16...Nd4 17.Kf2 Nb5–+) 0–1. Wloka,Frank – Vieth,Martin, DESC, 2004.

6.Bf4 Nh5!? 7.Nh3 Bf6=+ 8.e3 Bc3 9.dc3 Qf6 10.Qd3 =+.

6.Bf6 gf6 7.Nd5 +=.

6.Bf6 Bf6 7.e3 0–0 (7...Bc3 8.dc3 Qf6 9.Ne2+=) 8.d4 Re8 9.Bb5? (better is 9.Nf3+=) 9...Nd4–+ 10.Rc1 Nb5 (10...c6 11.Bd3 Qa5 12.Kf1 Qc3 13.ed4 Qd4 14.Qd2–+) 11.Nb5 d5 12.Nf3 (12.Qd3 d4 13.Nf3 c5–+) 12...a6 13.Nbd4 c5 14.Nb3 (14.Ne2 Bb2 15.Rb1 Ba3–+) 14...Bg4 (14...Bc3 15.Nbd2–+) 15.0–0 (15.h3 Bc3 16.Kf1 Bf3 17.Qf3 c4–+) 15...Rc8 (15...Bb2 16.Rb1 Ba3 17.c3–+) 16.c4? (better is 16.h3 Bf5 17.a4–+) 16...dc4 17.Rc4 Be6 18.Rc5 Qd1 (18...Qd1 19.Rd1 Bb3–+) 0–1. Noth,Albert – Pala,Giorgio, ICCF FM/0746, 2008.

6.Bg3 a6 7.e3 0–0 8.Nf3 d5 9.d4 Bf5 10.Bd3 =.

6.Bg3 Nd4 7.e3 Nf5 8.Bf4 d5 9.Nb5 Nd6 10.Nf3 =.

6.Bg3 d6 7.e3 0–0 8.Nf3 a6 9.d4 d5 10.Bd3 =.

6.Bg3 Nh5 7.Nd5 d6 8.e4 Nf6 9.Nc3 0–0 10.Nf3 =+.

6.Bf4 0–0

7.d4 d5 8.Nb5 a6 9.Nc7 Ra7 10.e4 Ne4 11.f3 Nf6.

7.d4 d5 8.e3 a6 9.Bd3 Re8 10.Nge2 =+.

7.d4 d5 8.e3 Bf5 9.Bd3 Bd3 10.cd3 Qd7 11.Nf3 Rfe8.

7.d4 Nh5 A) 8.Bg3 d6 9.e3 Nf6 10.Nf3 d5 11.Bd3 a6; B) 8.Bc1 d5 9.e4 Nf6 10.e5 Ne4 11.Ne4 de4; C) 8.Nh3 d6 9.e3 Nf6 10.Ng5 Re8 11.Bd3 Bg4.

7.e3 a6 8.d4 d5 9.Bd3 Re8 10.Nge2 Na5 11.Bg5 Nc4.

7.e3 d5 A) 8.Nb5 a6 9.Nc7 Ra7 10.Bd3 Bd6 11.Nd5 Nd5; B) 8.Bb5 Rb8 9.Nge2 a6 10.Bc6 bc6 11.0–0 Re8; C) 8.Nf3=+ Nh5 9.Bg3 Bg4 10.Bb5 Rb8 11.Qe2 Bf6.

7.e3 d6 A) 8.Rb1 a6 9.Nf3 d5 10.a4 Nh5 11.Bg3 Ng3; B) 8.Be2 a6 9.Bf3 Ne5 10.d4 Nf3 11.Nf3 d5; C) 8.Nf3 Nh5 9.Bg3 Re8 10.Nd5 Ng3 11.hg3 Be6; D) 8.Bb5 Bd7 9.Nge2 a6 10.Bc6 Bc6 11.0–0 Re8.

7.e4 d5 8.ed5 Nd5 9.Nd5 Qd5 10.Bc7 =+.

7.e3 Re8

8.d4 d6 9.Rb1 Nb8 10.Bd3 =.

8.d4= d6 9.Bb5 a6 10.Bc6 bc6 11.Nf3=+ Rb8.

8.d4= d6 9.Bb5 Bg4 10.Nge2 Nh5 11.Bc6 bc6=+ 12.h3 Nf4 13.hg4 Ng2–/+ 14.Kf1 Nh4 15.Rb1 Qc8 16.Nf4 Qa6 17.Nd3 Qa3–+ 18.Ne4 Qa2 19.Ra1 Qd5 20.f3 f5 21.gf5 Nf5 22.Qe2 Bg5! 23.c4 Qc4 24.Qa2 Qa2 25.Ra2 Be3 26.Kg2 Bd4 27.Ra6 Ne3 28.Kg3 c5 29.Nf4 Be5 30.Rh5 Re6 31.Re5 Re5 32.Rc6 Rf8 33.Nd3 Re7 34.Ra6 c4 35.Ne1 Nf5 (35...Nf5 36.Kf2 c6–+) 0–1. Delfi 1.40 – AnMon514, computer chess game (LAPTOP) (4), 2001.

8.d4= d6 9.Bd3 Bg4 10.Nge2 a6= 11.0–0 d5.

8.Be2 a6 9.Bf3 d6 10.Bc6 bc6 11.Nge2 Rb8.

8.Qf3 d6 9.Be2 Ne5 10.Qg3 Ng6 11.Bg5 h6.

8.Nf3 Nh5 9.Bg3 d5 10.d4 Bg4 11.Bd3 a6.

6.Bg3 0–0

7.e3 d5 8.Bd3 d4 9.Nce2 (9.Nb5 Ne8= 10.Nf3 de3 11.de3 a6 12.Nbd4 Nd4 13.Nd4 c5 14.Nb3=) 9...de3 (9...Re8 10.Nf3 Bc5 (10...de3 11.fe3 Nh5 12.0–0 Ng3 13.Ng3 Bf6 14.Rb1=) 11.Qb1= de3 12.fe3 a6 13.0–0 Ne4 14.Qb3=) 10.fe3 Nh5 (10...Bg4 11.Nf3+= Bf3 12.gf3 Bd6 13.Rb1 Rb8 14.Rb3+=; 10...Nd5 11.Nf3 Bf6 12.e4 Nb6 13.e5 Be7 14.0–0=) 11.Nf3 (11.Nd4 Ng3 12.Nc6 bc6 13.hg3 h6= 14.Qf3=) 11...Ng3 12.Ng3 g6 (12...Bf6 13.Rb1+= Be7 14.a4+=; 12...Bd6 13.Ne4 Ne5 14.Be2=) 13.0–0= Na5 (13...Bg4 14.Be4=) 14.Ne2 (14.Qe2=) 14...b6 (14...a6 15.Qb1=) 15.Be4 c6 (15...Rb8 16.Nf4=) 16.Ned4 (16.Nfd4 Qd6=) 16...Ba6 17.Bd3 (better is 17.d3 Qd6 18.g4=) 17...Qd5?? (better is 17...Bd3 18.cd3 Qd6=) 18.Ba6+– Rae8 19.c3 (19.Qe2 f5+–) 19...h6 (19...f5 20.Qa4+–) 20.Qc2 (20.Qe1 Qd6+–) 20...Bf6 (20...Bd6 21.Qa4+–) 21.Rab1 Bg7 22.a4 Qd7 23.Ne2 Re7 24.Nf4 Rd8 25.g3 Qd6 26.e4 c5 27.d3 Red7 28.Nd5 Nc6 29.Nd2 Ne7 30.Nc4 Qe6 31.Nf4 Qg4 32.a5 ba5 33.Na5 Rf8 34.Bc4 g5 35.Ng2 Rc7 36.Rf2 Qc8 37.Ne3 Ng6 38.Nd5 Rd7 39.Bb5 Rd6 40.Nc4 Rdd8 41.Rf5 Qe6 42.Ra1 Ne7 43.Nc7 Qg6 44.Rc5 a5 45.Ra5 Qf6 46.Ne3 Qb6 47.Ba4 Rb8 48.d4 Qf6 49.Ncd5 Qe6 50.Ra7 Nd5 51.Nd5 Qg4 52.Kg2 Rbd8 53.Re7 Rd5 54.ed5 Qh5 55.d6 Bf6 56.Qe4 Kg7 57.Bc2 (57.Bc2 Be7 58.de7+–) 1–0. Teske,Heike (2185) – Dammer,Axel (2400), RSX7E–A00–Sokolsky–2, 2009.

7.e3 d6 8.Nf3 a6 9.d4 d5 10.Bd3 =.

7.e4 d5 8.ed5 Nd5 9.Nd5 Qd5 10.Bc7 =+.

7.Nf3 d5 8.e3 Ne4 9.Bd3 f5 10.0–0 =+.

7.Nf3 d6 8.e4 Bg4 9.h3 Bh5 10.Be2 Re8 11.0–0 Bg6 12.Bb5 Ne4–/+ 13.Nd5 Ng3 14.fg3 Bf8 15.Nf4 Qf6 16.c3 a6 17.Bc6 bc6 18.Nd4 Qg5 19.Nc6 Qg3 20.Ng6=+ Qg6 21.Qb3 Re2–/+ 22.Rae1?? Rae8 23.Re2–/+ Re2 24.Rf2? Re1–+ 25.Kh2 d5! 26.Qb8 Qc6 27.Qc8 Qd6 28.g3 g6 29.Qe8 Re8 (29...Re8 30.h4 Qe5 31.Rg2 Ba3 32.c4 dc4 33.d4 cd3 34.Rf2 Qe1 35.Rg2 d2 36.Rg1 Re2 37.Rg2 d1Q 38.Kh3 Qh1 39.Kg4 Rf2 40.Kg5 Bc1#) 0–1. sociale63 – taiger (1695), internet, 2006.

5.c4 0–0

6.e3 b6 7.Nf3 Bb7 8.Be2 Nc6 9.Bb2 d5 10.Qc2 Na5 11.Ng5 h6 12.h4 g6 (12...Re8 13.cd5 Bd5 14.Bf3–/+) 13.h5 (better is 13.Ne6! fe6 14.Qg6 Kh8 15.Bd3+– (15.Qh6?! Kg8+/–)) 13...hg5–/+ 14.hg6 (14.hg6 Ba3 15.Rh7+– (worse is 15.Na3 d4 16.Bd4 c5+–; 15.Ba3?! c5+–; worse is 15.Ra3 d4 16.Bd4 Bg2+–)) 1–0. combijack (1780) – osq7 (1725), gameknot.com, 2011.

6.e3 c5 7.Nf3 Nc6 8.Bb2 (--> 5.e3 c5 6.c4 Nc6 7.Bb2 0–0 8.Nf3).

6.Nf3 Nc6 7.Bc3 Re8 8.d4 Ne4 9.d5 Bc5–/+ 10.e3 Nf2! 11.Kf2 Re3 12.Bd4 Rf3! 13.gf3 Nd4 14.Bg2 Nc2 15.Kf1 Ne3 (15...Ne3 16.Ke2 Nd1 17.Kd1 Qf6–+) 0–1. alaamattar (2100) – leobor (2000), net–chess.com, 2005.

6.Nf3 d5 7.cd5 Nd5 8.e3 c5 9.Bb2 Nc6 10.Be2 Qb6 11.Qc1 Na5 12.Nc3 Nc3 13.Bc3 Nb3 14.Qb2 Na1 (14...Na1 15.Qa1 Qg6–+) 0–1. michail – marekt, ChessWorld.net, 2005.

6.Nf3 d6 7.Bb2 Bf5 8.d4 Nbd7 9.e3 c5 10.Bd3 Bd3 11.Qd3 cd4 12.ed4 Rc8 13.Nbd2 Nh5 14.g3 Nb6 15.0–0 Nf6 16.Rac1 Na4 17.Ba1 Qb6 18.Rfe1 Rfe8 19.Rb1 Qc6 20.d5 Qd7 21.Ng5 h6 22.Nge4 Ne4 23.Ne4 Nc5 24.Nc5 Rc5 25.Bd4 Ra5 26.Qe3 Kf8 27.Qc3 Ra6 28.Bg7 Kg8 29.Bh6 Bf8 30.Re8 Qe8 31.Bf8 Qf8 32.Rb7 Qe8 33.h4 Ra3 34.Qa3 Qe1 35.Kg2 Qe4 36.Qf3 1–0. onny555 (1835) – ulla (1660), gameknot.com, 2014.

6.Nf3 Re8 7.Bb2 d5 8.e3 c5 9.d4 Nc6 10.Be2 cd4 11.Nd4 Qb6 12.Qc2 Nd4 13.Bd4 Bc5 14.Nd2? Bd4–+ 15.ed4 Qd4 16.Nb3 Qc4 17.Qc4 dc4 18.Nd4 Bd7 19.0–0 b5 20.a4 a6 21.ab5 ab5 22.Rfb1 Ra1 (22...Ra1 23.Ra1 Re4–+) 0–1. Stapinski,Ryszard (1800) – Cholewinski,Lucjan (1800), corr Poland, 1998.

6.e3 Nc6

7.Bb2 Na5 8.Nf3 c6 9.Qc2 d5 10.Be2 Nc4 11.Bc4 dc4 12.Qc4 Bf5 13.d4 Qb6 14.Qc1 Bd6 15.Nc3 Qa6 16.h3 Rfe8 17.Qd2 Bc7 18.g4 Be4 19.Ne4 Ne4 20.Qe2 Qa5 21.Kf1 Bg3! 22.Kg2 (22.fg3 Ng3 Double attack) 22...Bf2 23.Ne5 Bh4 24.Rhd1 Qd5 25.Qf3 Re6 26.Qf7 Kh8 27.Rf1 (27.Nf3 Qb5 28.Nh4–+) 27...Ng5 (27...Ng5 28.Kg1 Nf7 29.Nf7 Kg8–+) 0–1. combijack (1780) – vittore (1860), gameknot.com, 2011.

7.Bb2 d6 8.Nc3 Bg4 9.Be2= Be2 10.Qe2 Qd7 11.Nf3 Rad8 12.0–0 a6 13.h3 Ne5 14.Rad1 Qc6= 15.Ne5 de5 16.d4 e4 17.d5 Qb6 18.Qc2+= c6 19.Na4 Qa5 20.Bc3 Qc7 21.Bf6 Bf6= 22.Qe4 Rfe8 23.Qd3 cd5= 24.cd5 Qa5 25.Qb3+= Re4 26.Nb6+/– g6 27.f3 Ree8 28.e4 Qc5 29.Kh1+/– Qd6 30.Nc4 Qg3 31.Qe3 b5+= 32.Na5 Be5 33.Kg1 Qh2–/+ 34.Kf2 Bg3 35.Ke2 Qg2 36.Kd3 Rd5!! 37.ed5 Re3 38.Ke3 Bd6 39.Nb7? (39.Nb7 Qg5 40.Ke2 Qe7 41.Kf2 Qb7 42.Rfe1–+; 39.Nb3–+). ashoka_theking – Harnas (1775), internet, 2007.

7.Bb2 d6 8.Nf3 Bg4 9.Be2 Ne4 (9...d5 10.0–0+=) 10.d3 Bf6 11.Qc2 Bb2 (11...Bf3 12.gf3 Bb2 13.Qb2=) 12.Qb2 Nc5 (12...Ng5 13.Nbd2= (worse is 13.Qb7 Bf3 14.gf3 Qf6–/+)) 13.Nc3 (13.d4 Bf3 14.gf3 Qf6=) 13...Bf3 14.Bf3?? (better is 14.gf3 Re8 15.Rd1=) 14...Nd3–+ (14...Nd3 15.Ke2 Nb2–+) 0–1. Goldmund,Heike – Riha,Josef (2005), FICGS, 2014.

7.Bb2 d5

8.cd5 Qd5 9.Nc3 Qf5 10.Nf3 Rd8 11.d4= Qh5 12.Be2 Qg6=+ 13.g3 Bh3 14.Nh4 Qg5=+ 15.Bf3 Qa5 16.Qc2 Rd7 17.Bc1 Rd4 18.ed4= Nd4 19.Qd3 Nf3 20.Nf3 Rd8 21.Nd4 c5 22.Nb3 Rd3 23.Na5 Rc3 24.Rg1 Ng4 25.Bd2 Rf3 26.Be3 Ne3 27.fe3 Bg4 28.Ra2 Bf6 29.Nc4 b5 30.Nd6 Re3 (30...Re3 31.Kf1 Bh3 32.Rgg2 a6–+) 0–1. Diener,Rudolf – Sindern,Christoph, corr ICCF EU/M85 (year?).

8.cd5 Nd5 9.Be2 Bf6 10.d4 (10.Nc3 Nc3 11.dc3 Qe7 12.Nf3 Rd8 13.Qc2 g6 14.0–0 Bf5 15.Qb3 Be4) 10...Re8 (10...Bh4 11.g3 Bf6 12.Nc3 Re8 13.h4 Nc3 14.Bc3 Qd6 15.Nf3 Bg4) 11.Nf3 Bf5 (11...Qd6 12.Nc3 Bf5 13.0–0 a5 14.Bc4 Nb6 15.Bd3 Bd3) 12.0–0 (12.Nc3 Nc3 13.Bc3 Ne7 14.Qb3 Nd5 15.0–0 Re6) 12...Qd7 13.Nbd2 (13.Nc3 Rad8 14.h3 h6 15.Rc1 a6) 13...Rad8 14.Nc4 (14.Nb3 Qd6= (14...b6 15.Rc1 h6) 15.Nc5 Na5; 14.Re1 Re6 15.Nc4 a6) 14...Nb6 (14...a6 15.Rc1+= (15.Nce5 Qe6) 15...Qe6; 14...Qc8 15.a4 Qe6) 15.Nce5 (15.Nb6 ab6 16.Qb3 Be4=) 15...Be5+= (15...Qe6=) 16.Ne5 Ne5 17.de5 Qe6 18.Qc1 (18.Qe1 Na4 19.Qb4 Nb2 20.Qb2 b6+=) 18...Na4 19.Bd4 (19.Bc4 Qg6 20.f3 Bd3 21.Bd3 Qd3+=) 19...c5!–/+ 20.Bb5 (20.Bc5 Rd5 Double attack (20...Qe5 Deflection; 20...Rd5 Decoy)) 20...cd4 21.Ba4 Re7 22.f4 d3 (22...Qb6 23.Re1–/+) 23.Qb2 h6 24.Rfd1 Kh8 (24...Rc7 25.Qd2–/+) 25.Rac1 Qa6 (better is 25...f6!? 26.Rc5 fe5 27.Re5 Qf6+=) 26.Qb4+= ½–½. Lida Garcia,Fernando (2065) – Critelli,James M (2315), American Continental, Buenos Aires ARG, 2005.

8.cd5 Nd5 9.Nf3 Bf5 10.Be2 Qd6 11.0–0 Rad8 12.d4 Qg6 13.Kh1 Rfe8 14.Nc3 Nc3 15.Bc3 Bf6 16.Qb3 Be4 17.Rg1 Bd5 18.Bc4 Ne7 19.Bd2 Qe4 (19...Be4 20.Rac1=) 20.Rac1 Rd7 21.Bd5 Qd5 22.Qd5 Nd5 (22...Rd5? 23.e4 Rd7 24.e5 Be5 25.de5+– (worse is 25.Ne5 Rd4 26.Be3 Rd5+/–)) 23.Bb4 Nb4 24.ab4 c6 25.Ra1 Ra8 26.Rgb1 Kf8 27.Kg1 Ke7 28.Nd2 b6 29.Ne4 Ke6 30.Nf6 Kf6 31.Ra6 Ke7 ½–½. mr5reasons1 (1840) – ih16 (1960), gameknot.com, 2013.

8.cd5 Nd5 9.Nf3 Bf6 A) 10.d4 Bh4 (10...Re8 11.Be2 h6 12.Nc3 Bf5 13.0–0 Rb8 14.Bc4 Nc3 15.Bc3 b5) 11.Nh4 Qh4 12.Qf3 Re8 13.g3 Qg5 14.h4 Qd8 15.Bg2 Nb6; B) 10.Nc3 Nc3 11.dc3 Qe7 12.Be2 Rd8 13.Qc2 Qc5 14.0–0 Bf5 15.e4 Be6.

8.Nf3 Na5 9.cd5 Qd5 10.Nc3 Qb3 11.Rb1 Qd1 12.Rd1 Rd8 13.Be2 c5 14.0–0 Be6 15.d3 Nc6 16.Ng5 Bb3 17.Rc1 b6 18.f4 Rac8 19.g4 (19.Nce4 Ne4 20.Ne4 f5=) 19...Nd5 (19...c4 20.d4+=) 20.Nd5= Bd5 21.e4 Bb3 22.Nf3 Rc7 23.Kg2 Ba4 24.Rc3 Rcd7 25.Kg3 Bb5 Exerts pressure on the backward pawn 26.Rd1 f6 27.h4 Kf7 28.Rd2 c4 29.a4 Ba6 30.d4 Nd4 31.Bc4 Bc4 32.Rc4 Nf3 33.Rd7 Rd7 34.Kf3 Rd3 35.Ke2 Rg3 36.Bd4 Rg4 37.Kf3 Rh4 38.Rc7 g5 (38...Rh3!? 39.Kf2 Rd3+=) 39.fg5= fg5 40.Ra7 Rh6 41.Ke3 ½–½. marekt – Leormebanco, ChessWorld.net, 2012.

8.Nf3 Re8 9.cd5 Nd5 (9...Qd5 10.Nc3 Qf5 11.Be2 Qg6 12.0–0 Bh3 13.Nh4 Qg5 14.Qa4) 10.Nc3 Nf4 11.Qa4 Bd6 12.Kd1 Ng6 13.Ne4 Bf5 14.Nd6.

8.Nf3 Bf5 9.d4 Ne4 (9...Re8 10.cd5 (10.Nc3 h6 11.Be2 dc4 12.Bc4 Na5 13.Be2 c6 14.0–0; 10.Bd3 Bd3 11.Qd3 dc4 12.Qc4 Qd5 13.Nbd2 Bd6 14.0–0) 10...Nd5 11.Bb5+= (11.Nc3 Qd6 12.Bd3 Bd3 13.Qd3 Bf6 14.0–0) 11...a6 12.Be2 Qd6 13.Nc3 Nc3 14.Bc3; 9...Qd7 10.Nc3 h6 11.Bd3 Bd3 12.Qd3 dc4 13.Qc4 Na5 14.Qd3; 9...Qd6 10.Nc3 Na5 11.cd5 Qb6 12.Ra2 Rad8 13.Bd3 Bd3 14.Qd3) 10.Nc3= dc4 (10...Nc3 11.Bc3 Rb8 (11...Qd7 12.Bd3 h6 13.0–0 Rfd8 14.Bf5) 12.Bd3= Qd7 13.0–0 Rfd8 14.h3) 11.Bc4 Na5 (11...Qd6 12.d5 (12.0–0 Qg6 13.Re1 a6 14.d5) 12...Na5 13.Nb5= (13.Nd4 Nc4 14.Nf5) 13...Qb6 14.Bd3) 12.Bd3 Nc3 (12...Nd6 13.Bf5 Nf5 14.0–0+= (14.Qc2=)) 13.Bc3+= Bd3 14.Qd3 c5 (14...c6 15.0–0+=) 15.Qb5 ½–½. Kostrov,Yaroslav (2020) – Malakhov,Igor (2175), Autumn Open, St Petersburg RUS, 2005.

8.Nf3 Bf5 9.cd5 Qd5 10.Nc3 Qe6 11.Be2 Rad8 12.0–0 Nd7 (12...Rfe8 13.Ng5 Qd6 14.Qb3=) 13.d4 Nc5 14.Nd2 Nd3 15.Ra2 (15.Bd3 Bd3 16.d5 Rd5 17.Nd5 Qd5=) 15...Nb2 (15...Qg6 16.Qb3+=) 16.Rb2= b6 17.Qa4 Na5 18.Nc4 Nc4 19.Bc4 Qg6 20.Re1 (20.Qa7 Bd6 21.Bd5 Qh6+=) 20...a5= 21.g3 Bd7 22.Qb3 c6 23.Qb6 Ba3 24.Rb3 Bb4 25.Rc1 Bh3 26.Ne2 Qd6 27.e4 Bg4 28.f3 Bd7 29.e5 Qe7 30.Nf4 Bd2 (30...Rb8 31.Qa7 Ra8 32.Qc7+=) 31.Ra1= Attacks the isolani on a5 31...Bf4 32.gf4 a4 33.Rbb1 (33.Ra4!? Qh4 34.Qc5=) 33...Qh4–/+ 34.Bd3 Qf4 35.Be4 Qg5 36.Kf2 (36.Kh1!?+=) 36...Bf5 37.Bf5 Qf5 38.Qb2 (38.Qb4 Rd5 39.Qc4 Rfd8–+) 38...c5! 39.Ra4 (39.dc5 Rd5 Double attack (39...Rd5 Decoy)) 39...cd4 40.Rd1 (40.Re1 d3–+) 40...Qe5 41.Kg1 Qg5 42.Qg2 Qf6 43.Qd2 Qf3 44.Rd4 Rd4 (44...Rd4 45.Qd4 Re8–+) 0–1. pierred (2845) – pcmvr, net–chess.com, 2016.

8.Nf3 Bg4 9.cd5 Nd5 10.Be2 Bf6 11.d4 Nce7 12.Nbd2 c5 (12...Re8 13.Qb3=) 13.Ne4+= Qa5 14.Qd2 Qd2 15.Kd2 cd4 16.Bd4 Bd4 17.Nd4 Be2 18.Ke2 Rac8 19.Rac1 Rc1 20.Rc1 Rc8 21.Rc8 Nc8 22.g4 a6 23.h4 1–0. marekt – beatroot, internet, 2014.

8.Nf3 Bg4 9.Be2 dc4 10.Bc4 Ne4 11.Qc2 Bf3 12.gf3 Nd6 13.Ba2 Bf6 14.Nc3 Qd7 15.h4 h5 16.0–0–0 Qf5 17.Ne4 (better is 17.Qf5!? Nf5 18.Nd5 Bb2 19.Kb2+=) 17...Bb2–/+ 18.Qb2 Qf3?? (18...Ne4 19.fe4 Qe4 20.d3+=) 19.Ng5?? (19.Rhg1 Ne8 20.Rg7 Ng7 21.Rg1+–) 19...Qf5+= (19...Qf2 20.Rhg1 g6 21.Nh3+/–) 20.Rdg1 Ne5 (20...Qf2?? 21.Nh3 Qg1 22.Rg1+–) 21.Bb1 Nd3 (21...Qf6 22.Nh7 Qe7 23.Nf8 Rf8+/–) 22.Bd3+/– Qd3 23.Ne6 f6 24.Nf8 (24.Rg7 Kh8 25.Rhg1 (worse is 25.Rc7 Qe4 26.Rg1 Qe6+=) 25...Qc4 26.Qc2 Qc2 27.Kc2+/–) 24...Rf8= 25.Qa2 Kh8 26.Rh2 Nc4 Attacking the isolated pawn on a3 27.a4 Rd8–/+ 28.f4?? a6 29.Rhg2+= Rd7 30.Re1? Rd6–+ 31.Qc2 Qa3 32.Kd1 b5?? 33.ab5+= ab5 34.Ke2?? Rd2–+ 35.Qd2 Nd2 36.Rd1 Nc4 37.Rd7 Qe3 38.Kf1 Qf4 39.Kg1 g5 40.Re7 Ne3 41.Rf2 Qg3 0–1. combijack (1820) – wallaby66 (1630), gameknot.com, 2009.

8.Nf3 Bg4 9.h3 Bh5 10.Nc3 Ne5 (better is 10...dc4!? 11.Bc4 Ne5+=) 11.g4+= Nf3 12.Qf3 Bg6 13.cd5 Nd7 14.e4 Ne5 15.Qe3 Bg5? (better is 15...Nd7+=) 16.f4+– Bh4 17.Kd1 f6 18.fe5 fe5 19.Bc4 Kh8 20.Rf1 Rf1 21.Bf1 c6 22.Bc4 Bg5 23.Qe2 Qc7 24.a4 Qb6 25.d3 Rf8 26.a5 Qc5 27.Qe1 cd5 28.Nd5 Rf2 29.Bc3?? (better is 29.Bc1 Qf8 30.Bg5 Qf3 31.Kc1+–) 29...Qf8= 30.Bb4?? (better is 30.Qe2! Re2 31.Ke2=) 30...Qf3 0–1. combijack (1825) – tommetje (1960), gameknot.com, 2011.

6.e3 d5

7.Bb2 c5 8.cd5 Nd5 9.Qc2 Bf6 10.Nc3 Nc3 (10...Be6 11.Nf3+=) 11.Bc3 b6 12.Bd3 h6?? (better is 12...Bc3 13.dc3 f5+=) 13.Be4 1–0. Sundin,Tommy – Traeff,Paer, Iggesund, 1989.

7.Bb2 Nc6 8.d4 Be6 9.Nd2 dc4 10.Nc4 Qd5 (10...a6 11.Nf3+=) 11.Nf3+= Rad8 12.Qc2 (12.Bd3 b5 13.Ncd2 Rfe8+=) 12...Bf5 13.Bd3 Bb4 (13...Bd3 14.Qd3 b5 15.Ncd2+=) 14.Ke2 (14.Bc3 Bd3 15.Qd3 Be7+=) 14...Bd3+= 15.Qd3 Na5 (15...Be7 16.Rhc1+=) 16.Na5 (16.Rhc1 Bd6+=) 16...Ba5 17.Rhc1 Bb6 (17...Ne4 18.Kf1+=) 18.a4 (18.Qc4 Qh5=) 18...Rfe8 19.a5 Ba5 20.Rc5 Qc5 21.dc5 Rd3 22.Kd3 Rd8 23.Kc4 b6 24.Bf6 gf6 25.Nd4 a6 26.Ra2 (26.cb6 cb6 27.Kb3 h5=) 26...h5 ½–½. Diener,Rudolf – Baier,Guenter, corr ICCF EU/M24, 2000.

7.Bb2 Be6 8.cd5 Qd5 9.Nf3 Qh5 10.Be2 Qg6 11.Ne5 Qh6 (worse is 11...Qg2 12.Bf3 Qh3 13.Bb7+=) 12.Bf3 Nbd7 13.Nd7 Nd7 14.0–0 (14.Bb7? Rab8 15.Qf3 c6 16.Qc6 Nc5–+) 14...Bd6 15.g3 Rad8 16.d4 c6 17.Nc3 Nf6 18.Qe2 Rfe8 19.Rfe1 Qg6 20.Rad1 Bb3 ½–½. Whitmarsh,Jerry (2025) – Sobirey,Michael (2100), IECG, 2004.

7.Bb2 Be6 8.Qf3 –/+.

7.Qb3 c5 8.Nf3 (8.cd5 Qd5 9.Qd5 Nd5=) 8...Nc6 9.Bb2 (9.d4 Ne5 10.Ne5 cd4 11.ed4 dc4 12.Qc4 Be6–/+) 9...Na5–/+ 10.Qc2 Nc4 11.Bc4 dc4 12.Qc4 Be6 13.Qc2 b5 14.d3 (14.Ng5 g6+=) 14...c4 15.d4 (15.dc4 Bc4 16.Nbd2 Bd3+=) 15...Bd5 16.Nbd2 Re8 17.0–0 Rc8 18.Bc3 (18.e4 Be6–/+) 18...Bf3 (18...Bd6!?–/+) 19.Nf3 Qd5 20.Nd2 Bd6 21.Rfe1 Bh2?? (better is 21...Ne4–/+) 22.Kh2+/– Qh5 (22...Qd6 23.Kg1+/–) 23.Kg1+– Ng4 Black fights for the Initiative 24.Nf3 Rc6 25.Kf1 (better is 25.e4+–) 25...Qh1= 26.Ke2?? (better is 26.Ng1 Nh2 27.Ke2 Qg2 28.Ra2+=) 26...Qg2–/+ 27.Ne5 Qf2 28.Kd1 Ne3?? (28...Qc2 29.Kc2 Ne5 30.de5–/+) 29.Re3 Qe3 30.Nc6 Qg1 ½–½. Diener,Rudolf – Roggensack_Hanspach,Peter, corr SOK–92–79, 1992.

7.Qb3 Nc6 8.Bf6 Bf6 9.d4 dc4 10.Bc4 –/+.

7.Qc2 c5 8.cd5 Nd5 9.Nc3 Bf6 10.Bf6 Nf6 11.Bc4 Nc6 12.Nf3 b6 13.Ng5 h6 14.h4 Ne5 (14...hg5 15.hg5 Nd4 16.ed4 Re8 17.Kd1+–) 15.Nd5 g6 (15...hg5? 16.hg5 Nh5 17.Rh5+–; 15...Nc4?? 16.Nf6 Qf6 17.Qh7) 16.Nf6 Qf6 17.Ne4 Qc6 (17...Qd8 18.Bd5 Ba6 19.Ba8 Nd3 20.Kd1+=) 18.h5 (better is 18.Bd5! Qb5 19.d4 (19.Ba8?! Nd3 20.Kd1 Bf5 21.Nf6 Kg7+=) 19...Nd3 20.Kd2+–) 18...Bf5= 19.d3 b5?? (better is 19...Nc4 20.Qc4 g5+=) 20.Ba2?? (better is 20.Bd5! Qb6 21.f4 Be4 22.Be4 Nd3 23.Qd3+/–) 20...Be4 (better is 20...Nd3!? 21.Qd3 Be4–+ (21...Qe4?! 22.Qe4 Be4 23.hg6+=)) 21.de4–/+ g5?? (better is 21...c4–/+) 22.Bd5+/– Qf6 23.Ba8 Nf3?? (better is 23...Ra8 24.0–0 c4+/–) 24.Ke2+– 1–0. combijack (1760) – pawn78 (1765), gameknot.com, 2010.

7.Qc2 Nc6 8.Bb2 d4 9.Nf3 de3 (9...Bc5 10.Be2+=) 10.fe3 Bg4 11.Be2 Bh5 12.0–0 Bg6 13.Qb3 b6 14.d4 1–0. combijack (1800) – richard_cranium (1720), gameknot.com, 2011.

7.d4 c5 8.Bg3 (8.Nc3!? dc4 9.Bc4+=) 8...cd4–/+ 9.cd5 (9.Qd4 Nc6 10.Qd3 d4–/+) 9...Nd5 (better is 9...de3 10.fe3 Nd5–+) 10.Nd2? (better is 10.ed4 Qa5 11.Nd2–+) 10...Bg4?? (10...de3 11.Nc4 ef2 12.Bf2–+) 11.Qb1?? (better is 11.Qg4 de3 12.Nc4+=) 11...Bc5 (11...de3 12.fe3 Ne3 13.Bd3–+) 12.Nb3 (12.e4 Qe7–+) 12...Re8 (12...de3 13.f3 Bc8 14.Bd3–+) 13.Bc4 (better is 13.Bb5 Bd7 14.Bd3 de3 15.Bh7 Kh8 16.Nc5 Qa5 17.Kf1 Qc5 18.Bd3–+) 13...Ne3?? (better is 13...Bb6–+) 14.Bf7?? (14.fe3 Re3 15.Kf1 Qf6 16.Bf2 Rb3 17.Bb3 Qa6 18.Ke1–+) 14...Kf7–+ 15.Nc5 (15.Qa2 Ba3 16.fe3 Re3 17.Kf1 Qf6 18.Nf3 Be6 19.Qa3 Rb3–+) 15...Nc2 (better is 15...Qa5 16.Qb4 Nd5 17.Kf1 Nb4–+) 16.Kf1 Na1 17.h3 Re7 (17...Re7 18.hg4 Qd5–+; better is 17...Qa5 18.hg4 Qc5–+) 0–1. Korchut,Adam – Cottarelli,Franco, corr ICCF TT, 2002.

7.d4 Nbd7 +=.

7.cd5 Nbd7 8.Bd4 Nd5 +=.

7.h3 Nbd7 Black is in command 8.Bh2 (8.d4 dc4 9.Bc4 Ne5 10.de5 Qd1 11.Kd1 Ne4–/+) 8...Nb6 9.Qc2 (9.cd5 Nbd5 10.d4 c6+=) 9...dc4 10.Bc4 Nc4 11.Qc4 c6 12.Ne2 Be6 13.Qc2 Qa5 14.0–0 Bf5 15.Qc3 Qc3 16.Nec3 (16.Nbc3 Bd3–/+) 16...Bd3 17.Rc1 Rfd8 18.Bf4 Rd7 19.f3 Nh5 (19...Rad8 20.Kf2–/+) 20.Be5 f6 21.Bh2 g6 22.Kf2 f5 (22...Rad8 23.Ne4–/+) 23.g3 (23.Be5 Nf6–/+) 23...Rf8 24.Re1 (24.g4 Bh4 25.Kg2 Nf6–/+) 24...Bf6 25.Ra2 Rfd8 26.Rd1 (26.e4 fe4 27.Ne4 Bd4 28.Kg2 Nf6–/+) 26...Ng7 27.Ke1 Ne6 28.f4 Nc5 29.h4 (29.Ne2–+) 29...Bc4 30.d4 Ba2 31.Na2 Ne4 (31...Re7 32.Kf2–+) 32.Nac3 Nc3 33.Nc3 Re8 (better is 33...c5 34.Ne2 cd4 35.ed4 Bd4 36.Nd4 Rd4 37.Rd4 Rd4–+) 34.Ne2 (34.Kf2–+) 34...Re3 35.Bg1 Ra3 36.Bf2 a5 37.Kf1 (37.Kd2 a4–+) 37...Be7 38.Rc1 Bb4 (38...Ra2 39.Nc3 Rb2 40.Na4–+) 39.Ng1 (39.Be1 Bd6–+) 39...Rd3 40.Kg2 Re7 (40...a4 41.Rc4 Rb3 42.h5–+) 41.Nf3 Re2 42.Rb1 Ra3 43.Ne5 Raa2 44.Rf1 (44.Nd3 Red2 45.Rb3 Kf7–+) 44...Bc3 (44...Be1 45.Nd3 Bf2 46.Nc1–+) 45.Kf3 Red2 (45...a4 46.Be3–+) 46.g4 (46.Be3 Re2–+) 46...Bd4 (better is 46...Rf2!? 47.Rf2 Rf2 48.Kf2 Bd4 49.Ke2 Be5 50.gf5 gf5 51.Kd3 Bf4 52.Kc3–+) 47.Bd4 Rd4 48.gf5 gf5 49.Rg1 Kf8 50.Rg5 (50.Rb1 b5–+) 50...Ra3 (50...Ra3 51.Ke2 Rf4 52.Nd7 Ke8–+) 0–1. Gross,Siegfried – Buttner,Fritz, CiF, 1990.

7.cd5 Nd5

8.Qc2 c5 9.Bb2 Nc6 10.Nc3 Be6 11.Bd3 f5 12.Nd5 Qd5 (worse is 12...Bd5 13.Bf5 h6 14.Ne2+=) 13.Nh3 g5 (13...Qg2? 14.Rg1 Qg1 15.Ng1+–) 14.e4 Qd7 15.ef5 Rad8 16.fe6 Qd3 17.Qd3 Rd3 18.f3 Rd6 19.0–0–0 Re6 20.Rhe1 Rg6 21.Re4 Bd6 22.Nf2 Rd8 23.Rde1 Kf7 24.Nh3 Bh2 25.Rh1 Bb8 26.Ng5 Rg5 27.Rh7 Kf8 28.Bf6 Rdd5 (28...Rg2? 29.Bd8 Rg7 30.Rh8 Rg8 31.Rg8 Kg8 32.Be7+–) 29.Bg5 Rg5 30.Rb7 Rg2 31.Rh4 Rg1 32.Kc2 Be5 33.Rh6 Nd4 34.Kd3 Kg8 (34...Nf3 35.Rc6 Bc7 36.Rcc7+– (36.Rbc7?! Ne5 37.Kc3 Nc6 38.Rc6 Rc1 39.Kb3 Rd1+/–)) 35.Ra7 Bg7 36.Rh5 Ne6 37.Rh4 Rf1 38.a4 Rf3 39.Kc4 Rf2 40.d3 Bd4 41.Re4 Ng7 42.a5 Rc2 43.Kd5 Ra2 44.a6 Ra3 45.Kc6 Kh7 (45...Rd3? 46.Rb7+–) 46.Kb5 Rb3 47.Ka4 Rd3 48.Rd7 Rf3 49.Rh4 (49.Rdd4?! cd4 50.Rd4 Rf7+=; 49.Red4?! cd4 50.Rd4 Rf7+=) 49...Kg6 50.Rh8 (50.Rdd4?! cd4 51.Rg4 Kh6 52.Rd4 Rf6+=; 50.Rhd4?! cd4 51.Rd6 Kg5 52.Rd5 Kg6 53.Rd4 Rf6+=) 50...Nf5 51.a7 Bh8 52.a8Q Rf4 53.Kb5 Bg7 54.Qg2 Kh6 55.Rd1 (better is 55.Qd2!? Kg5 56.Qd5+–) 55...Bd4 56.Rh1 Rh4 57.Rf1 Ne3 58.Qg3 Rg4 59.Qd6 Kh5 60.Rf2 Rg5 61.Rh2 Kg4 62.Qh6 Nf5?? (better is 62...Kf5+–) 63.Rg2 Ng3 64.Rg3! (64.Rg3 Kg3 65.Qg5 Kf3 66.Qf5 Ke2 67.Qe4 Kf2 68.Kc4+–) 1–0. Degterev,Pavel (2275) – Moreira,Carlos (1710), BI–2010–P–00005, 2010.

8.Qc2 c5 9.Bb2 Nc6 10.Nc3 Be6 11.Be2 a6 12.Nf3 b5 13.0–0 f5 14.Nd5 Qd5 15.h3 Qd6 16.a4 b4 17.Rac1 Na5 18.Be5 Qb6 19.Qb2 Rf7 20.d3 Rc8 21.Nd2 Qc6 22.Qc2 Bd5 23.Bf3 Qe6 24.Bd5 Qd5 25.Nf3 Rff8 26.Qb2 Qd3 27.Bg7 Rf7 28.Be5 Qe4 29.Nd2 Qd5 30.Rfe1 Rd8 31.Nf3 Nc6 32.Bf4 c4 33.Qe2 c3 34.Qa6 Rg7 35.Kh1 Qe4 36.Qb6 Ra8 37.Red1 Rg6 38.Qb5 Ra5 39.Qb7 Ra7 40.Qb5 Ra5 ½–½. Degterev,Pavel (2260) – Jekel,Wolfgang (2150), CP–2008–Q–00004, 2010.

8.Qc2 c5 9.Bb2 Nc6 10.Nc3 Be6 11.Nf3 Nb6 12.Be2 Nc4 13.0–0 a6 14.Rfd1 Nb2 15.Qb2 b5 16.d4 cd4 17.ed4 Bf6 18.Ne4 Bd5 19.Nf6 Qf6 20.Ne5 Rfe8 21.Bf3 Rad8 22.Bd5 Rd5 23.Nc6 Qc6 24.a4 Qb6 25.ab5 ab5 26.Rac1 b4 27.g3 Qd6 28.Rc4 The isolani on b4 becomes a target 28...Rb5 29.Rb1 Reb8 30.Qc2 g6 31.Rc8 Kg7 32.Rb8 Rb8 33.Qc4 Qb6 ½–½. Degterev,Pavel (2225) – Milde,Lars (1810), CP–2009–Q–00018, 2011.

8.Qc2 c5 9.Nf3 Nc6 10.Bb2 Be6 11.Nc3 Nb6 12.Rc1 (12.Bb5 Rc8+=) 12...Rc8 13.Ne4 (13.Bd3 f5+=) 13...c4 14.Be2 Qd5 15.Ng3 (15.0–0 Rfd8+=) 15...Rfd8 (15...Qa5 16.h4 f6 17.0–0+=) 16.0–0 Qa5 Attacking the isolated pawn on a3 17.Nd4 Nd4 18.Bd4 Nd5 19.Qe4 (19.Bc4? b5 (19...Qa3?! 20.Qe4=; 19...Ba3?! 20.Ra1–/+) 20.d3 bc4 21.dc4 Nb6–+) 19...b5 20.Bg7 (20.Nh5 Bf8+=) ½–½. Gomez,Gustavo Daniel – Stull,Norbert, corr Interzonal Team Tournament, 2000.

8.Qc2 Bf6 9.Nf3 Nc6 10.Bf6 Qf6 (worse is 10...gf6 11.d4+/–) 11.Nc3 Bf5 12.Bd3 Bd3 13.Qd3 Rad8 14.Qc2 Nc3 15.Qc3 Qc3 16.dc3 b6 17.Ke2 Na5 18.Rhd1 c5 19.Rd8 Rd8 20.Ra2 Kf8 21.Rd2 Rd2 22.Nd2 b5 23.f4 Ke7 24.e4 f6 25.Ke3 Ke6 26.Kd3 Nb7 27.g4 a5 28.c4 b4 29.a4 g5 ½–½. Degterev,Pavel (2240) – Staroske,Uwe (2330), WC–2011–T–00006, 2010.

8.Qc2 Bf6 9.Nf3 Re8 10.d4 Bg4 11.Nbd2 Nc6 12.Bd3 Be5 13.de5 h6 14.Bb5 Re6 15.Qb2 Na5 16.Be2 Qd7 17.Rd1 Rd8 18.Nb1 Qe8 19.0–0 Rb6 20.Qc2 Bh5 21.Qc5 Bf3 22.Bf3 Rb5 23.Qc2 c6 24.Be2 Rb6 25.Qa4 Rb2 26.Qa5 Re2 27.Qa7 Qe5 28.Qb7 Rc2 29.Qb3 Rc5 30.Rc1 Nf6 31.Qb6 Rcd5 32.h3 Ne4 33.Qc6 R5d6 34.Qc2 Rg6 35.Rcd1 Re8 36.Rd4 Qg5 37.f4 Qe7 38.Kh2 Qb7 39.Rfd1 Kh7 40.Rd8 Rc6 41.Qa4 Re7 42.R8d4 f5 43.Qa5 Qc8 44.Rd8 Qe6 45.Nd2 Ra6 46.Qb4 Rb6 47.Qd4 Nd2 48.Rd2 Qe3 49.a4 Qd4 50.R2d4 Ra6 51.R8d6 Ra8 52.R6d5 Rea7 53.Rf5 Ra4 54.Ra4 Ra4 55.Kg3 Ra3 56.Kg4 Ra2 ½–½. Degterev,Pavel (2275) – Herzog,Klaus (1775), RA–2008–0–00025, 2008.

8.Nc3 Be6 +=.

8.Bc4 Nb6 A) 9.Bb3–/+ N8d7 (9...Nc6 10.Bg3 Bf5 11.d4 Re8 12.Nf3 Na5+=) 10.Bf4 Nc5 11.Bc2 Nd3 12.Bd3 Qd3–/+; B) 9.Be2 Re8 (9...Nc6 10.Bg3 Rb8 11.d4 Re8 12.Nf3 Bf5=) 10.d4 c5 11.dc5 Qd1 12.Kd1 Bc5+=.

8.Bc4 c5 9.Qb3 Nb6 10.Bb8 Nc4 11.Qc4 Rb8 12.Nf3 Be6 13.Qe2 Bf6 14.Nc3 b5! 15.Rb1 (15.Nb5 Ba1 Pinning (15...Ba1 Deflection)) 15...Bc4 16.Qd1 Bd3 17.Rb3 a5 Black intends b4 18.Nb1 (18.g4 b4 19.Ne2–+) 18...b4 19.ab4 cb4 20.Nd4 (20.Rd3 Qd3 21.Ng1–+) 20...Qd4!! (worse is 20...Bd4 21.Rd3 Qg5 22.Rd4 (worse is 22.ed4 Qg2 23.Qf3 Qf3 24.Rf3 a4+=) 22...Qg2 23.Rf1+=) 21.f3 (21.ed4 Rbe8 Decoy) 21...Qh4 22.g3 Qc4 23.Rd3 Qd3 24.Kf2 Rfc8 25.Qe2 Qe2 26.Ke2 Bb2. michas – pierre, ChessHere.com, 2005.

8.Bc4 c5 9.Qc2 Nc6 10.Bb2 Be6 11.Nf3 a6 12.Bd3 f5 +=.

8.Bc4 c5 9.Qf3 Nb6 (9...Nf6 10.Qg3 Nc6 11.Bc7 Qd7 12.Nc3 Nh5+=) 10.Bb5 N8d7 11.Bc3 a6 12.Bd7 Qd7 +=.

8.Bc4 c5 9.Nf3 Nc6 10.Bb2 Be6 11.Qc2 Bf6 (11...a6 12.0–0 b5+=) 12.d3? (better is 12.Ra2+= Ndb4–+; 12.Bd3 Bb2+=) 12...Ndb4–+ (12...Ndb4 13.ab4 Nb4–+) 0–1. Freeling – Hornstein,Norman M, corr, 1975.

8.Bc4 Nc6 A) 9.Bg3 Be6 (9...Nb6 10.Bb5 Na5 11.Qc2 c5 12.Be2 c4+=) 10.Qc2 Na5 11.Ba2 Bf6 12.d4 Rc8–/+; B) 9.Bb2 Nb6 10.Bb5 Qd5 11.Bf1 Rd8 12.d4 Be6+=; C) 9.Bc3 Be6 10.Bb5 Nc3 11.Nc3 Na5 12.d4 c5+=.

8.Bc4 Be6 A) 9.Qc2 Nc6 10.Bb2 Na5 11.Ba2 c5 12.Nc3 c4+=; B) 9.Nc3 Nc6 (9...c6 10.Nd5 cd5 11.Bd3 Nc6 12.Bf4 d4+=) 10.Nd5 Ne5 11.Ne7 Qe7 12.Be6 fe6–/+; C) 9.Bd5 Qd5 (9...Bd5 10.Nc3 Be6 11.Nf3 Nd7 12.d4 c5+=) 10.Nf3 Qd7 11.d4 Rd8 12.Nc3 c5+=.

8.Nf3 Nc6 9.Bb2 A) 9...Bf5 10.Be2 (10.Nc3 Bf6 11.Be2 Nc3 12.dc3 Qe7 13.0–0 Rad8 14.Nd4 Bg6 15.Re1) 10...Bf6 11.Nc3 Nc3 12.dc3 Qd1 13.Rd1 Rad8 14.0–0 Bg4 15.a4; B) 9...Bf6 10.Nc3 (10.d4 Bh4 11.Nh4 Qh4 12.Qf3 Re8 13.g3 Qg5 14.h4 Qf5 15.Qf5) 10...Nc3 11.dc3 Qe7 12.Bd3 Rd8 13.Qc2 g6 14.0–0 Ne5 15.Be2; C) 9...Be6 10.Nc3 (10.Qc2 g6 11.Nc3 Re8 12.Be2 Bf6 13.0–0 b6 14.d3 Qd7 15.Nd5) 10...Nb6 11.d4 Na5 12.Bd3 Nbc4 13.Bc1 Qd6 14.Qc2 f5 15.0–0; D) 9...Qd6 10.Qc2 (10.Nc3 Bf5 11.Be2 Nc3 12.Bc3 Qg6 13.0–0 Rad8 14.Re1 b6 15.Qb3) 10...Bf6 11.Nc3 Nc3 12.Bc3 g6 13.Be2 Bf5 14.Qb2 Bc3 15.Qc3.

8.Nf3 Nd7 9.Bb2 A) 9...Bf6 10.d4 c5 11.Nc3 Nc3 12.Bc3 Nb6 13.Rc1 Be6 14.dc5 Bc3 15.Rc3; B) 9...Re8 10.Qc2 (10.Be2 Nc5 11.Nc3 Nc3 12.Bc3 Nd3 13.Bd3 Qd3 14.Ne5 Qd5 15.Qf3; 10.Nc3 Nc5 11.Be2 Nc3 12.Bc3 Nd3 13.Bd3 Qd3 14.Ne5 Qd5 15.Qf3) 10...Nc5 11.d4 Ne4 12.Bd3 Bf5 13.0–0 Bh4 14.g3 Bf6 15.Ne5; C) 9...g6 10.Be2 (10.Nc3 Nc5 11.Qc2 Bf6 12.Nd5 Bb2 13.Qb2 Qd5 14.Rc1 Be6 15.Be2; 10.Bc4 N5b6 11.Be2 Nc5 12.Nc3 Nd3 13.Bd3 Qd3 14.Qe2 Bf5 15.e4; 10.d4 c5 11.Nc3 Nc3 12.Bc3 Nf6 13.Bd3 Bg4 14.dc5 Rc8 15.0–0) 10...Nc5 11.0–0 Bf5 12.Nc3 Bf6 13.d4 Nc3 14.Bc3 Ne4 15.Rc1; D) 9...c6 10.Qc2 (10.Nc3 Nc3 11.Bc3 Nc5 12.Nd4 Ne4 13.Bb2 Qd5 14.Qb3 Bd7 15.Be2) 10...g6 11.Nc3 Nc3 12.Qc3 Bf6 13.Qc2 Nb6 14.d4 Be6 15.e4.

8.Nf3 Nd7 9.Bd4 c5 10.Bb2 N7b6 11.Qc2 g6 12.Nc3 Bf6 13.Ne4 Bb2 14.Qb2 c4 15.Qd4.

8.Nf3 Bf5 9.Be2 (9.Nc3 Nc3 10.dc3 Nd7=) 9...c5 10.0–0 Nc6 11.Bb2 Rc8 12.d3 Bf6 13.Qc2? (better is 13.Qd2!? Re8 14.Rc1+=) 13...c4!–+ 14.e4 (14.Qc4 Bb2 Deflection; 14.dc4 Bc2 Pinning (14...Bc2 Deflection)) 14...cd3 15.Bd3 Nf4 (15...Ncb4 16.Bf6 Qf6 17.Qb3 Nd3 18.Qd3 Qa1 19.Qd5–+) 16.Bf6–/+ Qf6 (16...Qd3?! 17.Qd3 Nd3 18.ef5 gf6 19.Nbd2=) 17.Nbd2? (better is 17.Qc3 Qg6 18.Nh4–+) 17...Bh3–+ (17...Nd3?! 18.Qd3 Be6 19.Rfd1=) 18.e5 Ne5 19.Bh7 Kh8 20.Qe4 Nf3 (20...Bg2?! 21.Qe5 Qe5 22.Ne5 Kh7 23.Rfd1–+) 21.Nf3 Rfe8 22.Qb1 (22.gh3 Re4 23.Be4–+) 22...Bg2 23.Be4 Bf1 24.Kf1 Rc1! 25.Qc1 Re4 26.Qc8 (26.h4 Qa6 27.Kg1 Ne2 28.Kg2 Nc1 29.Rc1 Rg4 30.Kh3–+) 26...Kh7 27.Qh3 Nh3 0–1. Hilbert,Stephan J – Flores,Luis (2105), FICGS, 2014.

8.Qc2 Nc6

9.Bb2 a6 10.Nf3 +=.

9.Bb2 Re8 10.Nf3 Bf6 11.Nc3 Bg4 12.Rb1 Bf3 13.gf3 Nd4 14.Qd1 Nc3 15.Bc3 b6 16.Bc4 Qd6 17.Bd4 Qd4 18.Qb3 Qd7 19.d4 Re7 20.0–0 Qf5 21.Kg2 ½–½. Degterev,Pavel (2240) – Dorer,Manfred (2255), BI–2010–F–00004, 2011.

9.Bb2 Re8 10.Nf3 Bf6 11.Nc3 Bg4 12.Rb1 Bf3 13.gf3 Nd4 14.Qd1 Nc3 15.Bc3 b6 16.Bc4 Ne6 17.Bb5 Rf8 18.Qc2 Bc3 19.Qc3 Qe7 20.Bc4 Rfd8 21.Rg1 g6 22.Rg4 Rd6 23.Kf1 Rad8 24.d3 Qd7 25.Qc2 Qc6 26.Qe2 Qc5 27.a4 Qf5 28.Rc1 c6 29.d4 Re8 30.Qd1 c5 31.d5 Nc7 32.Kg1 Qf6 (32...Nd5? 33.e4 Qe5 34.Bd5+–) 33.Rg3 a6 34.e4 b5 35.Bf1 c4 36.Qc2 h5 37.Be2 Re5 38.Rd1 c3 39.ab5 ab5 40.Qc3 Red5 41.Qf6 Rd1 (41...Rf6?? 42.ed5 (42.Rd5?! Nd5 43.ed5 b4+–) 42...Rd6 43.f4 Rd5 44.Rd5 Nd5 45.f5+– (worse is 45.Bb5 Nf4 46.Ra3 f6+–)) 42.Bd1 Rf6 43.Kf1 b4 44.Rg5 Rb6 45.Bb3 Rc6 46.f4 Kg7 47.Rg3 Ne6 48.Be6 Re6 49.Re3 Kf8 50.Ke2 Ke7 51.Kd3 Ra6 52.Kc4 Ra2 53.Rf3 Rc2 54.Kd4 h4 55.h3 Kf6 56.Rb3 Rf2 57.Ke3 Rh2 58.Kd4 Rh1 59.Rb4 Rh3 60.e5 Kg7 61.Rb7 Rf3 62.Ke4 Rf1 63.Rb8 h3 64.Rb2 Kh6 65.e6? (better is 65.Rh2 Kh5 66.Rh3 Kg4 67.Rc3–/+) 65...fe6–+ 66.Rh2 Kh5 67.Rh3 Kg4 68.Rh6 Rf4 69.Ke3 g5 0–1. Degterev,Pavel (2275) – Onder,Evren (2235), SM–2009–0–00051, 2009.

9.Bb2 Bf6 10.Nc3 Re8 11.Nd5 Bb2 12.Qb2 Qd5 13.Rc1 Nd4 14.f3 c5 15.Kf2 Nc6 16.Bc4 Qd6 17.Ne2 Bd7 18.Rhd1 Rac8 19.Ng3 b6 20.Bb5 Qe7 (20...Rcd8 21.d4 cd4 22.Bc6 Bc6 23.Rd4=) 21.Re1 (21.Kg1 Rcd8=) 21...Red8 22.d4 cd4 23.ed4 Qf6 (23...Qd6 24.Bc6 Rc6 25.Qb4=) 24.Ne4 Qh4 (worse is 24...Qd4 25.Qd4 Nd4 26.Bd7 Rc2 27.Rc2 Nc2 28.Rc1 Na3 29.Rc7+–) 25.Kg1 Bf5 26.g3 Qh6 27.Rc4 Ne7 28.Rc8 Rc8 (28...Bc8 29.Qc3 Nd5 30.Qc1=) 29.a4 (29.Qd2 Qe6=) 29...Nd5 30.Ba6 Rd8 31.Qb3 ½–½. Degterev,Pavel (2225) – Hnatovsky,Nicholas (2305), WC–2010–F–00003, 2010.

9.Bb2 Bf6 10.Nc3 Re8 11.Nd5 Bb2 12.Qb2 Qd5 13.Rc1 Nd4 14.f3 c5 15.Kf2 Nc6 16.Bc4 Qd6 17.Ne2 Bd7 18.Rhd1 Ne5 19.d4 Nc4 20.Rc4 Rac8 21.Qc1 Qh2 22.Rh1 Qd6 23.Rc5 b6 24.Rc8 Rc8 25.Qb2 Rc4 26.Rc1 Ra4 Attacks the isolani on a3 27.Nc3 Ra5 (27...Ra3?? 28.Nb5 Qb8 A) worse is 29.Qa3 Bb5 30.Qa7 Qd8+– (30...Qa7?? 31.Rc8 Be8 32.Re8); B) 29.Na3+–) 28.Qb4 Qf8 29.Qf8 Kf8 30.Ra1 h5 31.e4 b5 32.Ra2 Ke7 33.Rb2 Ra3 34.Nb5 Ra1 35.Nc3 f6 36.Ke3 h4 37.f4 White plans e5 37...a5 38.e5 Rc1 39.Kd2 Rf1 40.Ke2 Rc1 41.Nd5 Ke6 42.Ne3 fe5 43.Rb6 Ke7 44.fe5 a4 45.Kd2 Rc6 46.Rb7 Re6 47.Ra7 Ke8 48.Ke1 Kd8 49.Kf2 Bb5 50.Ra5 Bd7 51.Nc4 Rg6 52.d5 Rg4 53.Ra8 Ke7 54.Nb6 Bf5? (better is 54...Rb4!? 55.Nd7 Kd7 56.Ra7 Kd8+–) 55.d6 Kf7 56.Ra7 Kf8 57.Ra4 Ra4 58.Na4 h3 59.gh3 Bh3 60.Nc5 Kf7 61.Ke3 Bg2 62.e6 Kf6 63.e7 Bc6 64.Kd4 Kf7 65.Ke5 Bb5 66.Kd5 Be8 67.Ne6 Bd7 68.Ng5 Kf6 69.Ne4 Kf7 70.Ke5 g6 71.Ng5 Kg7 72.Kd5 Kf6 73.Nh7 Kf7 74.Nf8 Bb5 75.Kc5 Ba4 76.Kb6 Ke8 77.Ng6 Kd7 78.Ka5 Bb3 (78...Bc6 79.Ne5 Kd6 80.Nc6 Kd7+–) 79.Ne5 Ke8 80.Ng4 Kf7 81.Nf6! (81.Nf6 Be6 82.e8Q Kf6 83.Kb5+–) 1–0. Degterev,Pavel (2275) – Muller,Henri_Louis (2045), WC–2011–S–00003, 2008.

9.Bb2 Bf6 10.Nc3 Re8 11.Nd5 Bb2 (worse is 11...Qd5 12.Bf6 gf6 13.Nf3+=) 12.Qb2 Qd5 13.Ne2 (13.Nf3 Bg4=) 13...Bg4 (13...Rb8 14.Rc1+=) 14.f3 (14.Nc3 Qd7=) 14...Bf5 (14...Bc8 15.e4 Qd3 16.Ng3=) 15.Rc1 (15.Qb7 Rad8 16.Qb2 Ne5=) 15...Rad8 (15...Bc8 16.Ng3=) 16.Nf4 (16.e4!? Be4 17.fe4 Re4 18.Kd1=) 16...Qd6+= 17.Be2 a5 (17...a6 18.g4 Be6 19.d4=) 18.Nh5= Threatening mate... how? 18...f6 19.Rc3 (19.Ng3 Bd3=) 19...Ne5 (19...Bc8 20.Ng3=) 20.Qc1 (20.Ng3 Nd3 21.Bd3 Bd3–/+) 20...Bd3 21.Rc7 The passed pawn on d2 will quickly become a dangerous weapon. Opening the c–fi 21...Be2 (21...Re7 22.Re7 Qe7 23.f4 Be2 24.Ke2=) 22.Ke2 (22.Rg7 Kh8 23.Ke2 Qd3 24.Kf2 Qf5–+) 22...g6 23.Nf4 b5 24.Rc3 b4 (24...g5 25.Nh5=) 25.ab4 ab4 (worse is 25...Qb4 26.d4 g5 27.Nh5+/–) 26.Rc7 Kh8 (26...g5 27.Nh5=) 27.Rd1 g5 28.Qc2 Threatening mate: Qxh7 28...Nd7 29.Nd3 Qh2 30.Nf2 (30.Nb4 Qg2 31.Ke1 Qg3 32.Ke2 g4–+) 30...Qe5 (30...Qd6 31.Rh1 Re7 32.Ne4 Qa6 33.d3+=) 31.Rb1+/– Qd6 32.Rh1 (32.Ke1 Qh2+/–) 32...Re7+= 33.Ne4 Qb6 34.Kf2 (34.Rc1 b3 35.Qc3 Qb5 36.Kf2 b2+–) 34...g4 35.Rc8 b3 (35...gf3 36.gf3 (worse is 36.Kf3 Ne5 37.Kg3 Nd3+=) 36...Rg7 37.d4+=) 36.Rd8+/– Qd8 37.Qb3 gf3 38.gf3 (38.Kf3 Re4 39.Rh7 Kh7 40.Qf7 Kh6 41.Ke4 Ne5–+) 38...Nc5 39.Qc2 (39.Nc5 Qd2 40.Kf1 Qc1 41.Kf2 Qh1 42.Qb8 Kg7–+) 39...Ne4 40.fe4 Qe8 (40...Rg7 41.Ke1+/–) 41.Qc3 (41.d3 Rg7+/–) 41...Re5 (41...Qf7 42.Qc6+/–) 42.Qc7 (42.d3 Qe6+–) 42...h5 43.Qd6 White gets in control 43...Qf7 (43...Kg7 44.Rg1 Kf7 45.d4+–) 44.Rc1 Re8 (44...Re7 45.Qf4 Kg7 46.d3+–) 45.Qf4 Kh7 46.Qf5 (46.d3 Qa2 47.Kf3 Qf7+–) 46...Kh6 47.d4 Qe6 (47...Re7 48.Rc6 Kg7 49.Kg1+–) 48.Rg1 Do you see the mate threat? 48...Qf5 49.ef5 Kh7 (49...h4 50.Rg6 Kh5 51.Rf6+–) 50.Rg6 Rf8 51.e4 h4 (51...Rd8 52.d5 Rf8 53.d6+–) 52.Kf3 Rf7 53.Kf4 (53.Rg4 h3+–) 53...h3 (53...Rd7 54.d5 (54.Rf6?! Rd4 55.Rb6 Rd3+–) 54...h3 55.Rg3+– (55.Rf6 h2–+)) 54.Kg3 (54.Rg3 Rd7 55.Rh3 Kg7+–) 54...Re7 55.Rg4 (55.Kh3?! Re4 56.Rg4 Re3 57.Rg3 Re8+–; 55.Rf6?! Re4 56.d5 Re3 57.Kh2 Rd3+/–) 55...Rb7 56.Kh3 Rb3 57.Kg2 Rb4 58.d5 Rb6 (58...Rb3 59.Rg3 Rb1 60.Rg6+–) 59.Kf3 Ra6 60.Ke3 Kh6 (60...Ra4 61.Rg6 Ra3 62.Kd4 Ra4 63.Kc5 Re4 64.Rf6+–) 61.Kd4 Kh5 62.Rg8 Kh6 (62...Kh4 63.Kc5 Ra5 64.Kd6+–) 63.Kc5 (63.Kc5 Kh7 64.Rg6 Ra5 65.Kb4+–) 1–0. Gomez,Gustavo Daniel – Grasso,Giorgio Luigi Dr., corr Interzonal Team Tournament, 2000.

9.Bb2 Bf6 10.d4 Re8 11.Nf3 Ne3 12.fe3 Nd4 13.Nd4 Bd4 14.Nc3 Re3 15.Ne2 Bf5 16.Qc1 (16.Qf5 Bb2 Deflection) 16...Bd3 17.Bd4 Qd4 18.Ra2 Rae8 19.Rd2 (19.Qd1 Qc4 20.Rb2–+) 19...Qh4 20.Kd1 Bb5 (20...Bb5 21.Kc2 Qa4 (21...Re2?! 22.Be2 Be2 23.Re1–+) 22.Kb1 Rb3 (22...Re2?! 23.Be2 Be2 24.Re1 Qb5 25.Ka1–/+) 23.Qb2 Rb2 24.Kb2 Be2 25.Be2 Re2 26.Re2 Qb5 27.Kc1 Qe2–+) 0–1. Diener,Rudolf – Dzenis,Raivo, EU/M89 corr ICCF, 2004.

9.Bb2 g6 10.Nc3 Bf5 (10...Nb6 11.Nf3=) 11.e4+= Nd4 12.Qd1 Nf4 13.g3 Be6 14.gf4 Bb3 15.Qc1 Nc2 16.Ke2 Nd4 17.Ke1 ½–½. Degterev,Pavel (2225) – Felicio,Clairton (2290), WC–2010–F–00003, 2010.

8.Nf3 c5

9.Qb3 A) 9...Nb6 10.Nc3 (10.Qb2 f6 11.Qa2 Kh8 12.Bg3 Nc6 13.Nc3 Bf5 14.Be2 Bd3 15.0–0; 10.Bd3 Nc6 11.Qc2 g6 12.Nc3 c4 13.Be2 Ne5 14.Ne5 Bf5 15.Qb2; 10.Qc2 Nc6 11.Nc3 g6 12.Be2 Bf5 13.Qa2 Ne5 14.Ne5 Bf6 15.f4; 10.Bg3 Nc6 11.Nc3 Bf5 12.Be2 Bd3 13.0–0 c4 14.Qb5 Be2 15.Ne2) 10...Nc6 11.Bg3 Be6 12.Qc2 Na5 13.Rb1 c4 14.Be2 Ba3 15.Nb5; B) 9...Nc6 10.Nc3 Nb6 11.Bg3 c4 12.Qc2 g6 13.d4 Bf6 14.Be2 Bf5 15.Qb2.

9.Qc2 +=.

9.Nc3 Nc6 10.Qb3 Nb6 11.Qc2 g6 12.Be2 Bf5 13.Qb2 Ne5 14.Ne5 Bf6 15.f4.

9.Bc4 A) 9...Be6 10.Bd5 (10.e4 Nf4 11.Bf4 Bc4 12.Ne5 Bf6 13.Nc4 Ba1 14.0–0 Qd3 15.Nd6; 10.Bd3 Nc6 11.Qc2 g6 12.Bc3 Rc8 13.Be2 c4 14.0–0 Qb6 15.Bb2; 10.Qc2 Nc6 11.Bb2 Bf6 12.Bd3 Bb2 13.Qb2 Nf6 14.Be2 a6 15.Nc3; 10.Qe2 Nd7 11.Nc3 Ne5 12.Bd5 Bd5 13.Ne5 Bf6 14.f4 Re8 15.0–0) 10...Bd5 11.Nc3 Nc6 12.Bc7 Qd7 13.Nd5 Qd5 14.0–0 c4 15.Qb1; B) 9...Nc6 10.Nc3 Be6 11.Qe2 Ne5 12.Bd5 Bd5 13.Ne5 Bf6 14.f4 Be5 15.fe5.

9.Be2 Nc6

10.Bb2 Qb6 11.Qc1 Na5 12.Nc3 Nc3 13.Qc3 Bf6 14.d4 Nb3 15.Rd1.

10.Bb2 Qb6 11.Qc1 Bf5 +=.

10.Bb2 Qb6 11.Qc2 Bf5 12.d3 (12.Qf5 Qb2 Deflection) 12...c4!–+ 13.e4 (13.Qc4 Qb2 Deflection; 13.dc4 Bc2 Pinning (13...Bc2 Deflection)) 13...cd3 14.Bd3 Nf4 15.Ra2?? (better is 15.Bc3 Ng2 16.Kf1–+) 15...Nd3 (15...Nd3 16.Qd3 Be6–+; worse is 15...Ng2 16.Ke2 Nf4 17.Ke1–+) 0–1. Hilbert,Stephan J (1735) – Sorcinelli,Andrea (1965), FICGS, 2015.

10.Bb2 Bf6 11.Qc2 Re8 12.Nc3 Be6 13.0–0 Rc8 14.Ne4 Bb2 15.Qb2 b6 16.Ba6 Rc7 17.d3 h6 18.Rac1 Bg4 19.Ned2 Kh7 20.Bc4 Ne5?? (better is 20...Be6=) 21.Ne5+– (21.Ne5 Bc8 22.d4+–) 1–0. Boehnke,Hartmut (2015) – Striepens,Benedikt (2130), GER–ch36 V5 email, 2004.

10.Bb2 Bf6 11.Qc2 Bf5 12.Qf5 Bb2 13.Ra2 Bf6 14.0–0 Rc8 (14...g6 15.Qc2) 15.Rc2 (15.Rc1+=) 15...g6 16.Qe4 Re8 17.Qa4 Qb6 18.Bc4 Red8 19.Bd5 Rd5 20.Nc3 Bc3 21.Rc3 Rcd8 22.Qe4 Qc7 23.Rfc1 Qd6 24.h3 Kg7 25.Qb1 Rd7 26.Qb5?? (better is 26.Qc2 Ne5 27.Ne5 Re5 28.Rc5 Rc5 29.Qc5 Qc5 30.Rc5 Rd2 31.g4=) 26...Nd4!–+ 27.ed4 cd4 28.Rc5 Rc7! 29.Rc7 Rb5 30.a4 Rb1 31.Rf7 Kf7 32.Rb1 b6 33.Rc1 (33.Rb3 Qc5 34.Rd3 b5 35.ab5 Qb5 36.Rd4 a5–/+) 33...Kg7 (33...d3 34.Rc6 Qd8 35.Ne5 Kg7 36.Rc4–+) 34.Rc4 (34.d3!?+=) 34...d3–/+ 35.Rg4 0–1. Kagan,Shimon (2360) – Shmuter,Leonid (2480), Tel Aviv, 1995.

10.Bb2 Bf6 11.Nc3 Bc3 12.Bc3 Nc3 13.dc3 Qf6 14.Qb3 Be6 15.Qb2.

10.Qb3 Ne5 11.Ne5 Bf6 12.f4 Be6 13.Qc2 Qc7 14.0–0 Be5 15.fe5.

6.e3 d6

7.Bb2=+ c6 8.Nf3 Bf5 9.Nc3 Nbd7 10.Be2 h6 11.0–0 Re8 12.h3 Nc5 13.d4 Nce4 14.Bd3 Nc3 15.Bc3 Qd7 16.Qc2 Bd3 17.Qd3 Qe6 18.Rfc1 Qe4 19.Qb1 b6 20.Nd2 Qe6 21.Qd3 d5 22.Bb4 Rad8 23.Be7 Re7 24.c5 b5 25.Rcb1 Rb8 26.Qc3 Ne4 27.Ne4 Qe4 28.a4 a6 29.Kh2 Re6 30.Qd2 Rg6 31.g3 h5 32.h4 Qf5 33.Rb2 Re8 34.Rh1 Kh7 35.ab5 ab5 36.Ra2 Qf3 37.Rg1 Re4 38.Qe2 Qf6 39.Rg2 Qf5 40.Ra7 Rf6 ½–½. Degterev,Pavel (2275) – Bodaan,Ton (2275), WC–2011–S–00003, 2008.

7.Bb2=+ Nc6 8.Nf3 Bg4 9.Be2 d5 10.cd5 Qd5 11.0–0 Rad8 12.Nc3 Qe6 13.d4 a6 14.Qc2 Bf5 15.Qa4 h6 16.Rfe1 Nd5 17.Nd5 Qd5 18.Bc4 Qd7 19.Qd1 Be4 20.Bd3 Qf5 21.Be4 Qe4 22.Qb3 Na5 23.Qc3 Nc6 24.Nd2 Qd5 25.Rec1 f5 26.Qb3 Qb3 27.Nb3 Rd5 28.Rc3 Re8 29.g3 Kf7 30.Rac1 h5 31.Nc5 Bc5 32.Rc5 Rc5 33.Rc5 Ke6 34.d5 Kd6 35.Rc1 Ne5 36.Rd1 g5 37.Bc3 Nc4 38.Bb4 Kd7 39.Rd4 Re4 40.Rd3 a5 41.Bf8 g4 42.Kg2 Re8 43.Bh6 b5 44.h3 b4 45.ab4 ab4 46.hg4 hg4 47.Rd4 Re4 48.Rd3 Ne5 49.Rb3 Nf3 50.Bf8 Rc4 51.Rb1 b3 52.Ba3 Nd2 53.Rc1 Rc1 54.Bc1 Kd6 55.f3 Nf3 56.Kf2 Kd5 0–1. bambohenk (1845) – phildo (1870), gameknot.com, 2012.

7.Bb2=+ Be6 8.d4 d5 9.cd5=+ Nd5 10.e4 Nb6 11.Qc2 c6 12.Bd3+= Re8 13.Ne2 N8d7 14.0–0+/– Rc8 15.Nd2 Bg4 16.f3 Be6 17.Rac1 Qc7 18.a4 Bb4 19.a5 Ba5 20.d5 cd5 21.Qc7 Rc7 22.Rc7 Bd2 23.Bd4 de4 24.Be4 Nc4 25.Rd1 Nf6 26.Rc4 Bc4 27.Rd2 Ne4 28.fe4 a5 29.Bb6 Be2 30.Re2 a4 31.Kf2 f6 32.Ke3 f5 33.Kd3+– Re6 34.Bd4 fe4 35.Re4 Rg6 36.g3 Kf7 37.Rf4 Ke6 38.Be3 b5 39.Rb4 ½–½. Deneuville,Christian – Windels,L, corr EM/J50, 2001.

7.Bb2=+ Bf5 8.Nc3 Nbd7 9.Nf3 c6 10.Be2 Qc7 11.0–0 Rfe8 12.Nd4 Bg6 13.f4 h6 14.d3 Nc5 15.Qc2 d5 16.cd5 cd5 17.Rac1 Rac8 18.Qd2 a6 19.Na4 b6 20.Nc5 bc5 21.Nf3 Qb6 22.Ne5 Bh7 23.a4 Bf8 24.a5 Qe6 25.Rb1 Nd7 26.Bg4 Bf5 27.Bf5 Qf5 28.e4 Qe6 (28...de4? 29.de4 Qe6 30.Nd7 Qe4 31.Nf8 Kf8 32.Qd6 Kg8 33.Qa6+–) 29.ed5 Qd5 30.Nc4 Rb8 31.Bc3 g6 32.Rb8 Rb8 33.f5 Bg7 34.Bg7 Kg7 35.Qc3 Kh7 36.fg6 fg6 37.Re1 Rf8 38.h3 Rf7 39.Re8 Rf8 40.Re7 Rf7 41.Nb6 Qf5 42.Rf7 Qf7 43.d4 Qe7 44.Nd7 Qd7 45.dc5 Qc6 46.Qe5 Qb5 (46...Kg8 47.Kf2+–) 47.Qd6 (47.Qd6 Qb4 48.Qc7 Kg8 49.c6 Qd4 50.Kh2+–) 1–0. poesimannen (2060) – ratkop (2065), gameknot.com, 2013.

7.Bb2=+ Bf5 8.Nc3 Nbd7 9.Nf3 c6 10.Be2 h6 11.0–0 Rc8 12.h3 Re8 13.a4 Nc5 14.a5 Qc7 15.d4 Nce4 16.Ne4 Be4 17.Qb3 Bf5 18.Rfc1 Ne4 19.Bd3 Bf6 20.Qc2 Qe7 21.Nd2 c5 22.Ne4 Be4 23.Be4 Qe4 24.d5 Bb2 25.Qb2 Rc7 26.Ra3 f5 27.Rb3 Ree7 28.f3 Qh4 29.Qc3 f4 30.e4 Kf7 31.Qc2 Qf6 32.Rcb1 Qd4 33.Kh2 g6 34.R1b2 Kf8 35.Qc1 Qe5 36.Qb1 Qg7 37.Rd2 Qf6 38.Re2 g5 39.Reb2 Qg7 40.Qc2 h5 41.Qc1 Qe5 42.Kg1 ½–½. Degterev,Pavel (2275) – Fages,Jorge Juan (2195), RM–2009–0–00038, 2009.

7.Bb2=+ Bf5 8.Nc3 Nbd7 9.Nf3 c6 10.Be2 h6 11.0–0 Re8 12.a4 Qa5 13.Nd4 Bg6 14.Nb3 Qc7 15.a5 Rab8 16.d4 b6 17.d5 a6 18.Nd4 cd5 19.Nd5 Nd5 20.cd5 Bf6 21.Rc1 Nc5 22.ab6 Qb7 23.Bc4 Qb6 24.Ba1 Ra8 25.Qe2 a5 26.Nc6 Ba1 27.Ra1 a4 28.Ra3 Be4 29.Rc1 Kh8 30.h3 f6 31.Rca1 Rac8 32.R1a2 Bg6 33.Rb2 Qc7 34.Bb5 Ra8 35.Qc4 Bf7 36.f3 Rec8 37.Rb4 Be8 38.Kh2 Kg8 39.Qf4 Bf7 40.Qd4 Be8 41.e4 Nb3 42.Qe3 Nc5 43.f4 Bc6 44.dc6 Kh8 45.Bc4 Qc6 46.Bd5 Qd7 47.Ba8 Ra8 48.Qd4 Re8 49.Qd5 Kh7 50.Rb6 Ne4 51.Rb7 Qe6 52.Qe6 Re6 53.Rc7 Kg6 54.Ra4 Nc5 55.Rd4 f5 56.Rd5 Kf6 57.g4 g6 58.Kg2 Re2 59.Kf3 Ne6 60.Rc4 Ra2 61.Rd6 Ra3 62.Kg2 Ra2 63.Kf1 Ra1 64.Ke2 Ra2 65.Rd2 Ra6 66.Kf2 g5 67.fg5 hg5 68.Rdc2 Ra3 69.R4c3 Ra4 70.Rc6 Kf7 71.gf5 Rf4 72.Kg2 Rf5 73.Rf2 Nf4 74.Kh2 Rf6 75.Rf6 Kf6 76.Kg3 Kg6 77.Kg4 ½–½. Degterev,Pavel (2260) – Kireev,Sergey (2335), SM–2009–0–00084, 2009.

7.Bb2=+ Bf5 8.Nf3 c6 9.Nc3 Nbd7 10.Be2 h6 11.0–0 Rc8 12.h3 d5 13.cd5 cd5 14.d3 a6 15.Rb1 b5 16.Na2 Nc5 17.Nb4 Na4 18.Na6 Nb2 19.Rb2 Ba3 20.Rb5 Ra8 21.Nc5 Qe7 22.Nb3 Bd7 23.Rb7 Rfb8 24.Rb8 Rb8 25.Qc2 Bd6 26.Ra1 Rc8 27.Qa2 Rb8 28.Bd1 Qf8 29.Nfd4 g6 30.Qa7 Kg7 31.Ra6 Rb4 32.Kf1 h5 33.Bc2 Rb8 34.Nf3 Qe7 35.Rb6 Rc8 36.Qa2 Bc7 37.Rb7 Bc6 38.Ra7 Bd7 39.Nbd4 Bb6 40.Rb7 Bc5 41.Bd1 Qd6 42.Qa1 Rf8 43.Ng5 Bc8 44.Rb3 Re8 45.Kg1 Bd7 46.Ndf3 Qc7 47.Qb2 Bd6 48.Kf1 Rc8 49.Rb7 Qc1 50.Qc1 Rc1 51.Ke2 Rc5 52.Bb3 Rb5 53.Rb5 (53.Rb5 Bb5 54.Nd4+/–) 1–0. Degterev,Pavel (2260) – Rensen,Martin (2000), SM–2009–0–00084, 2009.

7.Bf6 Bf6 8.d4 –/+.

5.c4 Nc6

6.Bb2 d5 7.e3 Be6 8.Qc2 0–0 9.Nf3 Ne4 10.cd5 Qd5 11.Nc3 Nc3 12.Bc3 f5 13.h4 Bf6 14.Ng5 Bd7?? (better is 14...Kh8=) 15.Bf6+– Rf6 (15...b5 16.Bc3 h6+–) 16.Bc4 (16.Bc4 Be6 17.Bd5 Bd5 18.Rb1+–) 1–0. combijack (1810) – abitibi_viking (1630), gameknot.com, 2011.

6.Bc3 d5 7.e3 Bg4 8.Be2 Be2 9.Qe2 0–0 10.Nf3 Re8 11.0–0 Ne4 12.d3 Nc3 13.Nc3 d4 14.Nd5 de3 15.fe3 Bc5 16.Kh1 Nd4 17.Nd4+= Bd4 18.Rab1 c6 19.Rb7?? cd5–+ 20.Rff7 Re3 21.Rg7–/+ Bg7 22.Qe3 Qf6 23.h3 dc4 24.dc4 Rf8 25.Qg3 Kh8 26.Rb5 Bh6 27.Rb8–/+ Bf4 28.Rf8 Qf8 29.Qc3 Kg8 30.c5 Bc7 31.Qc4 Kg7 32.Qg4 Kh6 33.Qh4= Kg6 34.Qg4 Kh6 35.Qh4 ½–½. wlittle (2300) – wulebgr (2220), net–chess.com, 2004.

6.d4 d5 7.c5? (7.e3!?–/+) 7...0–0 (7...Ne5!? 8.de5 Ne4 9.Nf3–+) 8.Nf3 Bf5 (8...b6 9.Qc2 Ne5 10.Ne5–/+) 9.Nc3–/+ Ne5 10.Ne5 c6 11.e3 Qc7 12.f3 (12.Bd3 Bd3 13.Nd3 b6+=) 12...Rad8 (12...Bc5 13.Bd3 Qa5 14.Qd2 Bd3 15.Nd3–/+) 13.Be2 (13.Bd3!? Bd3 14.Nd3+=) 13...Bc5!–/+ 14.0–0 Be7 15.Qb3 Bd6 16.f4 Ne4 17.Bd3? f6?? 18.Nf3?? b6?? 19.Be4+– Be4 20.Ne4 f5 21.Nd6 Qd6 22.Ne5 c5 23.Nf3 c4 24.Qc3 b5 25.Rfb1 a6 26.Ne5 Rb8 27.Qa5 Rfc8 28.Qc3 Qe7?? 29.g3 g6 30.Kf2 Qd6 31.Rb2 Rc7 32.Rab1 Rcb7 33.Qa5 Kg7 34.h4 h6 35.Nf3 Kf6 36.Ne5 Rc8?? 37.Kf3 Kg7 38.Ke2 Rbc7 39.Qc3 Qe6 40.Kf3 Kf6 41.a4! Rb8 42.ab5 ab5 43.Rb5 Rb5 44.Rb5 h5 45.Qa5 (45.Qa5 Re7 46.Rb6 Qb6 47.Qb6 Kg7 48.Qg6 Kh8 49.Nf7 Rf7 50.Qf7 c3 51.Qh5 Kg7 52.Qf5 c2 53.Qc2 Kf7 54.f5 Kg7 55.Qc7 Kg8 56.f6 Kf8 57.h5 Kg8 58.Qg7#) 1–0. Baer,Cy (1895) – Vetter,Udo (1760), CiF, 2007.

6.d4 d6 7.Bf4 (7.Bf6 Bf6 (worse is 7...gf6 8.Nc3+/–) 8.e3 Qe7=) 7...0–0 (7...Nh5 8.Bc1=) 8.Nf3 Bf5 (8...Re8 9.e3+=) 9.e3= Ne4 (9...Re8 10.Bd3 Bd3 11.Qd3=) 10.Bd3 Re8 (10...g5 11.Qc2 d5=) 11.d5 (11.Qc2!? Bf6 12.0–0=) 11...Bf6+= 12.Ra2 Nc3?? (better is 12...Ne7+=) 13.Nc3+– Bc3 14.Ke2 (better is 14.Kf1!? Ne7 15.Bf5 Nf5 16.Qd3+–) 14...Ne7+= 15.Rc2 Bd3 16.Qd3 Bf6 17.Ng5 Ng6+= 18.Bg3?? Bg5–+ 19.f4 Bf4 20.Kd1 Re3 21.Qd4 Qg5 22.Bf4 Qf4 23.Qb2 Rd3 24.Rd2 Rd2 25.Qd2 Qc4 26.Re1 Ne5 27.Re3 Qa4 28.Ke1 Nc4 29.Qe2 Ne3 30.Kf2 Re8 31.Qd3 Qf4 32.Kg1 Ng4 33.Qf1 Qh2# 0–1. Tortoza,Carlos – Vetter,Udo (1760), CiF, 2007.

6.d4 Ne5!? 7.de5 Ng4 –/+.

6.Bf6 gf6 7.Nc3 +=.

6.Bf6 Bf6 7.Ra2 0–0 8.e4 Re8 9.d3 d6 10.h3 Nd4 11.Rd2 c5 12.Ne2 a6 13.g4?? Nf3# 0–1. Wloka,Frank – FR (1660), RSS5D easy–4, 2003.

6.Bb2 0–0

7.Nc3 d5 8.cd5 Nd5 9.Nf3 Bf6 10.Qc2 Nd4 (10...Nc3 11.dc3 Ne5 12.e3+=) 11.Nd4= Bd4 12.e3 Re8 (12...Bc3 13.Bc3 Be6 14.Be5=) 13.Be2 (13.Bd3 g6=) 13...Nc3 (13...Bc3 14.Bc3 Nc3 15.dc3=) 14.dc3 (14.Bc3 Bc3 15.dc3 Qg5=) 14...Bf6 (14...Be5 15.Rd1 Qg5 16.Bf3+=) 15.Rd1 (15.Bd3 h6=) 15...Qe7 16.0–0 Bd7 (16...Be6 17.Bd3 h6 18.Rd2=) 17.Bf3 (17.Rd2 Rad8=) 17...c6 18.Rd2 (18.c4 Bb2 19.Qb2 Be6=) 18...Rad8 19.Rfd1 Bc8 (19...Be6 20.Be4 Rd2 21.Rd2= (worse is 21.Bh7 Kf8 22.Rd2 g6–/+)) 20.c4 g6 (20...Bb2 21.Rd8 Rd8 22.Rd8 Qd8 23.Qb2=) 21.Bc3 (21.Bf6 Qf6 22.c5 Bf5+=) 21...Bc3 (21...Be6 22.Bf6 Qf6 23.c5+=) 22.Qc3 Rd7 (22...Rd2 23.Rd2 Be6 24.c5+=) 23.Rd7 Bd7 24.Qd4 Be6 25.c5 (25.Qa7 Bc4 26.Rb1 Ba6+=) 25...Rc8 (25...h6 26.Qb4+=) 26.a4 (26.Qd6 Re8+=) 26...Rc7 (26...Bd5 27.Bd5 cd5 28.Rc1=) 27.a5 (27.Qd6 Qd6 28.cd6 Rd7+=) 27...Rd7 28.Qe5 (28.Qb4 Rd1 29.Bd1 Bd5+=) 28...Rd1= 29.Bd1 Qd8 30.Qd4 (better is 30.Be2=) 30...Qa5–/+ 31.Kf1 (31.Be2 b6–/+) 31...b5 (31...b6 32.cb6 ab6 33.Bf3–+) 32.f4 b4 (32...Bc4 33.Kf2 Qa2 34.Kg3–/+) 33.g4 (33.Be2 b3 34.e4 h6–+) 33...Qb5 (33...h6 34.h4–+) 34.Kf2 a5 (better is 34...h6 35.Be2 Qb8–/+) 35.Qd8= Kg7 36.g5?? (better is 36.Qd4 Kf8 37.Qd8 Kg7 38.Qd4 Kf8 39.Qd8 Kg7=) 36...Qc5–+ 37.Qf6 Kg8 38.Qd8 Kg7?? (better is 38...Qf8 39.Qa5 c5–+) 39.Qf6= Kf8 40.Qd8 ½–½. Moraes,Maurino A De – Correa,Sara Madalena, Circuito Catarinense Aberto 2h K, 2009.

7.Nc3 d5 8.cd5 Nd5 9.Nf3 Bf6 10.d4 Bg4 11.e3 Re8 12.Nd5 Qd5 13.Be2 Qa5 14.Qd2 Qd2 15.Kd2 Rad8 16.Bd3 g6 17.Rab1 b6 18.Rhc1 Rd6 19.Bb5 Red8?? (better is 19...Ree6+/–) 20.Rc6+– 1–0. poesimannen (1975) – eeka (1835), gameknot.com, 2013.

7.Nc3 d5 8.cd5 Nd5 9.Nf3 Bf6 10.e3 Re8 +=.

7.d4 d6 8.Nf3 Bg4 9.e3 Re8 10.Nbd2 Bf8 11.h3 Bh5 12.Bd3 Bg6 13.0–0 Bd3 14.Re1 Ne4 15.Ne4 Be4 16.d5 Ne5 17.Nd2 Bg6 18.f4 Nd3 19.Qb3 Ne1 20.Re1 Be4 21.Bd4 b6 22.Ne4 Re4 23.Qc3 Qh4 24.Kh2 Rae8 25.g3 Qh5 26.Rg1 Qf3 27.Rg2 g6 28.h4 Rd4 29.Qd4 Bg7 30.Qd2 Re3 31.a4 Rd3 32.Qa2 Bc3 33.Qc2 Qg2 34.Qg2 Rd2 0–1. chessleon (2180) – alencro (2580), net–chess.com, 2014.

7.Nf3 d5 8.cd5 Qd5 9.e3 Bg4 10.Be2 Rad8 11.0–0 h6 12.d4 Ne4 13.Nc3 Nc3 14.Bc3 Bd6 15.Qb1 b6 16.e4+/– Qh5 17.e5 Be7 18.Qe4 Nb8 19.Ng5 Qg5 20.Bg4 f5 21.ef6 Bf6 22.Rfe1 Kh8 23.Rad1 Qd5 (23...Qd5 24.Qd5 Rd5+=; 23...c5 24.Bd2 Qd5 25.Qd5 Rd5 26.dc5 bc5 27.Be3+=). michail – Simon de Balle, ChessWorld.net, 2005.

7.Nf3 d5 8.cd5 Nd5 9.e4 Re8 10.d4 Bf5 11.e5 Na5 12.Nc3 c6 13.Nd2 Bg5 14.Nf3 1–0. memco286 (1915) – antinephilehi (1900), gameknot.com, 2013.

7.Nf3 d5 8.e3 Bg4 9.cd5 Nd5 10.Bb5 Bf6 11.Qc2 Bb2 12.Qb2 Bf3 13.gf3 Qd6 14.Rg1 Ne5 15.Kf1 f6 16.f4 Nf7 17.Nc3 Rad8 18.Nd5 Qd5 19.Qf6?? Qb5–+ 20.Ke1 g6 21.Rg6 hg6 22.Qg6 Kh8 23.f5 Rd6 (23...Rd6 24.Qg2 Ne5 25.Qh3 Kg7–+) 0–1. Juscamayta Zuegel,Tupac Amaru (2135) – Hirneise,Jens (2000), Baden Wuerttemberg–chB, 2005.

7.e3 d5

8.Qc2 d4 9.Nf3 Bc5 10.Ng5 h6 11.h4 Ne5 12.f4 (better is 12.Ne4!? Bf5 13.d3 Be4 14.de4–+) 12...Neg4–+ (12...hg5?! 13.fe5 Ng4 14.hg5=) 13.Be2 de3 (better is 13...Re8 14.Nf3 de3–+) 14.Bg4+= ed2 (14...Bg4 15.Bf6 ed2 16.Nd2 Re8 17.Be5 hg5 18.hg5 Re5 19.fe5–+; 14...hg5 15.hg5 Re8 16.d4 Ng4 17.Qh7 Kf8 18.dc5+=) 15.Nd2 Bg4 16.Bf6 Re8 17.Nde4?? (17.Be5 hg5 18.hg5 Re5 19.fe5–+) 17...Qf6–+ 18.Rd1 Qf4 19.Rd5 hg5 20.hg5 Re4 0–1. combijack (1845) – rocky_balboa, gameknot.com, 2011.

8.Qc2 d4 9.Nf3 Bc5 10.Ng5 h6 11.h4 Bg4 12.Nc3?? (better is 12.Ne4 Ne4 13.Qe4+=) 12...dc3–+ (12...hg5?! 13.hg5 dc3 14.Bc3–+) 13.Bc3 Qd7 (better is 13...Re8 14.Nf3 Ne4–+) 14.Bf6 Bf5 15.Bd3?? (better is 15.Ne4 Be4 16.Qe4 gf6 17.Qf4–/+) 15...Bd3–+ 16.Qc3 gf6 17.Qf6 Qg4 18.Nf3 Qg6 19.Qf4 Bd6 20.h5 Qg7 (20...Qg7 21.Qd4 Nd4 22.ed4 Rfe8 23.Kd1 Bc4–+) 0–1. combijack (1820) – wallaby66 (1750), gameknot.com, 2011.

8.Qc2 d4 9.Nf3 Bc5 10.Ng5 h6 11.h4 hg5?! 12.hg5 g6 13.gf6 =.

8.Qc2 d4 9.Nf3 de3 10.fe3 Bg4 11.Be2 Nd7 12.0–0 Bf6 13.Nc3 Rb8 14.Qe4 Bh5 15.Qf5 Bg6 16.Qb5 a6 17.Qb3 Nc5 18.Qa2 Nd3 19.Rad1 Nb2 20.Qb2 Bd3 21.Rf2 Be2 22.Re2 Qd3 23.Ree1 Qc4 24.Qc1 Bc3 25.Qc3 Qc3 26.dc3 Rbd8 27.Nd4 Ne5 28.Rb1 b6 29.Re2 Nc4 30.a4 Rfe8 31.Kf2 Rd6 32.h3 Rf6 33.Nf3 Rfe6 34.Rbe1 Nd6 35.Rc1 Ne4 36.Kg1 Nc5 37.Rd1 Na4 38.Rd7 Nc3 39.Rc2 Nb5 40.Ra2 a5 41.Rb2 c6 42.Nd4 Nd4 43.ed4 b5 44.Rc2 a4 45.d5 cd5 46.Rd5 b4 47.Ra5 b3 48.Rb2 Re4 49.Kh2 g6 50.Rf2 R8e7 51.Rb2 Rb7 52.Kg3 Rc7 53.Kf3 Rec4 54.Ra8 Kg7 55.Ra6 Rc3 56.Ke4 R7c4 57.Kd5 Rc2 58.Rb1 Rc1 59.Ra4 Ra4 60.Rc1 Ra2 61.Rb1 Rg2 62.Rb3 Re2 63.Rf3 h5 64.Kd4 f6 65.Kd5 g5 0–1. combijack (1885) – lostinadaze (1880), gameknot.com, 2013.

8.cd5 Nd5 9.Nf3 Bf5 10.Bc4 (10.Bb5 Na5+=) 10...Nb6 11.Be2 Bd3 12.0–0 Re8 13.Nc3 (13.Ne1 Be2 14.Qe2 Bf6+=) 13...Nc4 14.Qb3 (14.Qc1 Rb8+=) 14...Bf6 (14...N6a5!? 15.Qa2 Be2 16.Ne2 Nd2+=) 15.Bd3= Qd3 Attacking the backward pawn on d2 16.Qb7 (16.Rfd1!?–/+) 16...N6a5 17.Qc7 Rec8 18.Qf4 Nb2 19.Ne4 Be7 20.Ne5 Qd5 21.d4 (21.Qf5 Nc6 22.Nc6 Qc6–/+ (22...Qf5?? 23.Ne7 Kf8 24.Nf5+–)) 21...f6 22.Nf3 (22.Qf3 Qe6 23.Rab1–+) 22...Nd3 (22...Nd3 23.Qh4 g5 24.Nf6 Bf6–+) 0–1. Hilbert,Stephan J – Flores,Luis (2015), FICGS, 2016.

8.Nf3 Be6 9.Qc2 Qd7 10.cd5+= Qd5 11.Nc3 Qh5 12.Be2 Rad8 13.d4 Bd6 14.g3 (14.0–0!?=) 14...Bg4 15.Ng1 (15.Nh4!?+=) 15...Rfe8–/+ 16.h3 h6 17.Qd1 Be2 18.Nge2 Ne7 19.Nf4 (19.Rc1 Ned5 20.Nd5 Qd5–/+) 19...Qf5–+ 20.g4 Qg5 21.Ng2 h5 22.f4 Qg6 23.g5 (23.Nh4!? Qh7 24.Kf2–+) 23...Nf5–+ 24.Qd2?? (better is 24.Kf2 Ne3! 25.Ne3 Bf4 26.Ng2–+) 24...Ne3! 25.Kf2 (25.Ne3 Bf4 Double attack (25...Bf4 Decoy)) 25...Bc5!! 26.Ne3 Rd4 (26...Rd4 27.Qd4 Bd4–+) 0–1. zrenjanin (2015) – chandragupta (2140), gameknot.com, 2015.

8.Nf3 Be6 9.cd5 Qd5 10.Be2 Rad8 11.0–0 Na5 12.Nc3 Qb3 13.Qb3 Nb3 14.Rad1 c5 15.d4 cd4 16.Nd4 Nd4 17.Rd4 Rd4 18.ed4 Rc8 19.Rc1 Nd5 20.Nd5 Rc1 21.Bc1 Bd5 22.f4 f5 23.Kf2 ½–½. Feilmayr,Erwin – Spiegel,Ulrich, corr SOK–90–65, 1990.

8.Nf3 Bg4 9.d4 a5 10.Nbd2= Qd7 (10...h6 11.Bd3=) 11.cd5 Nd5 12.Bb5 (12.h3 Bh5 13.Ne5 Ne5 (worse is 13...Bd1 14.Nd7 Rfd8 15.e4+/–) 14.Qh5 Ng6+=) 12...Qe6 13.0–0 Kh8?? (13...Qg6 14.g3=) 14.Rc1?? (better is 14.e4 Nf4 15.d5+–) 14...Qg6+= 15.Kh1 Bd6 16.Nc4 Na7 (16...Rfd8!?+=) 17.Nd6+/– Qd6 18.Be2 Nc6 19.Qd3 Nf6? 20.e4+/– Bf3 21.gf3 Nh5 22.d5 Nf4 23.Qc3 f6 24.Bd1 Ne5+/– 25.Qc7 Qa6 26.Rg1 Neg6? 27.Bd4+– Nh3 28.Re1 Ngf4 29.Be3 g5 30.Qc4?? Nd3+= 31.Qa6 ba6 32.Be2 Ne1 33.Re1 Rfc8 34.d6 Rd8 35.Rd1 Nf4 36.Bf1 a4 37.d7 Ne6?? 38.Rd6+– Nf8 39.Bh3 h6?? 40.Bd4 Nh7 41.Bb6 Kg7 42.Bd8 Rd8 43.Ra6 Nf8 44.Ra4 Kf7 45.Rc4 Ke7 46.Rc8 Nd7 47.Rd8 Kd8 48.Bd7 Kd7 49.Kg2 Kc6 50.Kg3 Kb5 51.Kg4 Ka4 52.Kf5 1–0. Basanko,Viktor – Stepanov,Arseny, Stavropol Region Championship, 2011.

5.c4 d6

6.Bb2 0–0 7.e3 Bf5 8.Nf3 Nc6 9.Nc3 Re8 10.Be2 Bf8 (10...Rb8 11.0–0=) 11.0–0 Qd7 (11...d5 12.d3=) 12.d3 Ne5 (12...d5 13.cd5 Nd5 14.Nd5 Qd5 15.e4+=) 13.Ne5 (13.e4!? Nf3 14.Bf3+=) 13...de5= (worse is 13...Re5 14.e4 Be6 15.f4+–) 14.Qb3 c6 (worse is 14...Bd3 15.Rfd1 (15.Qb7?? Be2 16.Ne2 Reb8–+) 15...e4 16.Ne4 Ne4 17.Bd3+= (worse is 17.Rd3 Qf5 18.Rf1 Nc5–/+)) 15.Rad1 Rad8 16.d4 (16.Ne4 Be4 (16...Ne4? 17.de4 Qe6 18.Rd8 Rd8 19.ef5 Qf5 20.Qb7+–) 17.de4 Qc7=) 16...ed4+= 17.Rd4 Qc7 18.Rfd1 Rd4 19.Rd4 Rd8 (19...Bd6!? 20.h3 Bh2 21.Kh1 Be5+=) 20.Rd8+= Qd8 21.h3 (21.Qb7 Qd2 22.Kf1 Ng4=) 21...Ne4 (21...Qd2!?+=) 22.Ne4= Be4 23.Qc3 Qg5 24.Bf1 f6 (24...b6 25.Qb3+=) 25.g3 (25.Qd4 Qe5=) 25...Bd6 (better is 25...Qf5 26.Bg2 Bc5+=) 26.Kh2 (26.Qd4!? Qf5 27.Be2= (27.Qa7?? Qf3 28.Qa8 Bf8 29.Qf8 Kf8 30.Bf6 Qh1)) 26...Qf5 (26...Qh5!? 27.Bd3 Qf3 28.Be4 Qf2 (28...Qe4?! 29.c5 Be5 30.Qb3 Qd5 31.Qd5 cd5 32.Bd4=) 29.Bg2 Bg3 30.Kh1 Be5–+) 27.Qd2?? (better is 27.f4+=) 27...Qf3 0–1. Hilbert,Stephan J (1715) – Piantadosi,Angelo, FICGS, 2015.

6.Bb2 Nc6 7.e3 Be6 8.Nf3 0–0 9.Qc2 Qd7 10.Nc3 Ne5 11.Ne4 Nf3 12.gf3 Ne4 13.fe4 Bh4 14.d4 Bh3 15.0–0–0 Bg4 16.Rd2 Bf3 17.Rg1 Rfe8 18.Bd3 g6 19.d5 Qh3 20.Qc3 f6 21.Rg3? (better is 21.Re1–/+) 21...Qh2–+ (worse is 21...Bg3 22.fg3 Rf8 23.Rf2–+) 22.Rf3 Qh1 23.Kc2 Qf3 24.c5 Bf2 25.c6 bc6 26.dc6 Be1 27.Qc4 Kg7 28.Re2 Bg3 29.Bd4 a5 30.Qd5 Be5 31.Bc4 Rf8 32.a4 h5 33.Kd3 g5 34.Qe6 Rae8 35.Qd7 Kh6 36.Kd2 Bd4 (36...Qe4 37.Bd3 Bd4 38.Be4 Re4 39.ed4 Rd4 40.Kc3+–) 37.ed4 Re4 38.Bd3 (38.Re4 Qe4 39.Bd3 Qf4 40.Kc2 Qf2 41.Kc3 Qe1 42.Kc2 f5 43.Qc7 Qb4–+) 38...Re2 39.Be2 Qf4 40.Kc3 Qc1 41.Kd3 1–0. combijack (1790) – zoeaner (1870), gameknot.com, 2011.

6.Bc3 0–0 7.Qc2 d5 8.e3 Nc6 9.Bd3 (9.Nf3 Bg4=+) 9...d4 10.Bb2 Bc5 11.Nf3 Qd6 (11...Re8 12.0–0=+) 12.Ng5 Kh8 13.h3 (13.Nh7? Nh7 14.Bh7 f5–+) 13...de3 14.de3 Be3 15.Nh7 Bd4 (15...Nd4!? 16.Qd1 Nh7=+) 16.Nf8+= Bb2 17.Ng6 fg6 18.Ra2 Be5 19.Bg6 Be6 20.0–0 Qd4 21.Nd2 Bh3! 22.gh3 (better is 22.Be4 Bd7 23.Re1 Ne4 24.Re4–+) 22...Qd6?? (better is 22...Qf4 23.Nf3 Qf3–+) 23.Nf3 Nd4 (23...Bd4 24.Kg2+/–) 24.Ne5 (better is 24.Qd3+/–) 24...Nc2?? 25.Nf7+– Kg8 26.Rc2 Ng4?? 27.Rd1 Kf8 28.Rcd2 Qh2–+ 29.Kf1 Qh3 30.Ke1 Qh1 31.Ke2 Re8 32.Kd3 Nf2! 33.Kc2 Nd1 (34.Nd8 Re1–+) 0–1. Moeller Nielsen – Zbroja,Tadeusz, corr 3GMM–43, 1996.

5.d3 0–0

6.e4 d5 7.f3 de4 8.fe4 Bd6 9.Bd6–/+ Qd6 10.Nf3 Nc6 11.Be2 Be6 12.Nbd2 Ng4–+ 13.Qb1 Nd4 14.Nd4=+ Qd4 15.Rf1? Nh2 16.Nf3? Nf3 17.Rf3 Qg1 18.Bf1 Qd4?? 19.Qc1?? f5 20.ef5 Bf5 21.Be2 Qg1 22.Bf1? Rae8 23.Kd2 Qc5 24.Rb1 b6 25.c3 Bg4 26.Rf8 Qf8 27.Kc2 Be2 28.Kb2 Qf1 29.Qf1 Bf1 30.Rf1 Re2 31.Kb3 Rg2 32.Re1 Kf8 33.Rh1 h6 (33...h6 34.d4 c6–+) 0–1. 1805DYDIDIDY – Wulebgr@, mySchach.de, 2005.

6.h3 d5 7.Nf3 c5 8.c3 Nc6 9.Bf6 Bf6 10.e3 Qb6 11.Qc1 Re8 12.Be2 Bf5 13.Nbd2 Qa6 14.0–0 Bd3–+ 15.Re1?? Be2 16.Nh2 Ne5 17.Qc2 Bd3 18.Qb2 Bg6 19.Red1 Nd3 20.Qa2 Bc3 21.Qd5 Rad8 (21...Rad8 22.Qa2 b5–+) 0–1. novice1234 – Whiterose, ChessWorld.net, 2009.

5.d4 Nc6

6.Bg3 d5 7.e3 0–0 8.Nf3 =.

6.Bg3 d6 7.e3 0–0 8.Nc3 Bf5 9.Rb1 Rb8 10.Bd3 Bd3 11.Qd3 d5 12.Nf3 Ba3 13.Nd5 Nd5 14.Qa3 Re8 15.0–0 a5 16.c4 Nb6 17.Rb6 cb6 18.Bb8 Qb8 19.Rd1 Qc7 20.Qa4 Ra8 21.d5 Nb4 22.Qb5 Qc5 23.Qd7 Qc4 24.Qf7 Kf7 25.Ne5 Ke7 26.Nc4 a4 27.Nb6 Ra6 28.Nc4 a3 29.d6 Kd8 30.Nd2 Rd6 31.Kf1 a2 32.Ke2 Nc2 33.Nb3 Rd1 34.Kd1 a1Q 35.Na1 Na1 36.Kd2 Nb3 37.Kc3 Nc5 38.Kc4 Ne4 39.f3 Nd6 40.Kd5 Nf5 41.Ke4 Ne7 42.f4 b5 43.Kd3 Nd5 44.g3 Nb4 45.Kc3 Na6 46.h4 h5 47.e4 b4 48.Kc4 b3 49.Kc3 Nc5 50.e5 Ne4 51.Kb3 Ng3 52.Kc4 Nf5 53.Kd5 Ke7 54.Ke4 Nh4 55.f5 g5 56.fg6 Ng6 57.Kf5 h4 58.Kg4 Ke6 59.Kh3 Kd5 60.Kg4 Ke5 61.Kh3 Ke4 62.Kg4 Kd4 0–1. Fritz 5.32 – Fritz 6, 2003.

6.Bg3 Nh5 7.e3 Ng3 8.hg3 d5 9.Nf3 Bg4 10.c4 Qd7 11.Nbd2 0–0–0 12.Qa4 Bf5 13.cd5 Qd5 14.Bc4 Qd7 15.d5 Nb8 16.Qa7 Bf6 17.Rc1 Bb2 18.Nb3 Qd6 19.Nfd4 Bc1 20.Nc5 Qb6 21.Nf5 Rdf8 22.Nd6 Qd6 23.Qb7 Kd8 24.Qb8 Ke7 25.Qb1 Qc5 26.Qc1 Qa5 27.Ke2 Ra8 28.Qb2 Qa4 29.Bd3 Qg4 30.Ke1 h6 31.Rh4 Qg5 32.Qb4 Kd7 33.Qb7 Rhc8 34.Re4 Kd8 35.Qc6 Qe7 36.Bb5 Qb4 37.ab4 Ra1 38.Ke2 Ra2 39.Kf3 Rf2 40.Kf2 h5 41.Re8 1–0. COMP – COMP, Blitz, 2002.

5.d4 d6

6.Bg3 0–0 7.e3 d5 8.Bd3 =.

6.Bg3 0–0 7.Nf3 Bg4 8.e3 Ne4 9.h3 Ng3 10.fg3 Be6 11.c4 c6 12.Nc3 Qa5 13.Qd2 Nd7 14.Be2 Nb6 15.h4? Nc4–+ 16.Qc2 Ne3 17.Qd3 Ng2 18.Kf1? Nh4 19.Nh4–/+ g6 20.Ng6?? fg6–+ 21.Kg2 Bf5 22.Qe3 Bf6 23.Qh6 Rf7 24.Nd1 Bd4 25.Rh2 Ba1 0–1. badboy1221 – widerlichepenner, Live Game Caissa's Web, 2004.

6.Bg3 d5 7.Nf3 0–0 8.e3 c5 9.c3 Nc6 10.Nbd2 Qa5 11.Qc2 cd4 12.ed4 Ne4 13.c4? Bg4 14.Rd1 Bf3–+ 15.gf3 Nd4 16.Qd3 Nd2 17.Rd2 Bf6 18.Bd6 Rfe8 19.Kd1 dc4 20.Qc4 Rac8 21.Qd3 Re1!! 22.Ke1 Rc1# 0–1. Wloka,Frank – Willert,Hans_Juergen, RSS7E easy–4, 2003.

6.Bg3 Be6 7.e3 a6 8.Bd3 c5 9.Nf3 c4 10.Be2 Ne4 11.Bf4 Qa5 12.Nfd2 g5 13.Bg3 Ng3 14.hg3 Nc6 15.Rh6 d5 16.Bh5 0–0 17.Bg4 Kg7 18.Rh1 f5 19.Bf3 g4 20.Be2 Qb6 21.Qc1 Rae8 22.c3 Qd8 23.e4 fe4 24.Ne4 Bf5 25.Qh6 Kh8 26.Nbd2 de4 27.Nc4 Bg5 28.Qh2 e3 29.f4 gf3 30.gf3 b5 31.g4 Bg6 32.Qd6 Bh4 33.Kf1 bc4 34.Qc6 Qb8 35.Rh4 Qg3 36.Rh2 Qh2 37.Qf6 Rf6 38.Ke1 Bc2 39.Bc4 Qf2 0–1. COMP – COMP, Blitz, 2002.

5.e3 0–0

(--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7).

6.c4 (--> 5.c4 0–0 6.e3).

6.c4 c5 7.Nf3 Nc6 8.Bb2 (--> 5.e3 c5 6.c4 Nc6 7.Bb2 0–0 8.Nf3).

6.c4 d5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.a3 Be7).

6.Be2 c5 7.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Nf3 c5 7.Be2).

6.Nf3 c5 7.Bb2 d5 8.Be2 Nc6 9.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Be2 d5 7.Nf3 c5 8.0–0 Nc6 9.Bb2).

6.Nf3 c5 7.c4 Nc6 8.Bb2 (--> 5.e3 c5 6.c4 Nc6 7.Bb2 0–0 8.Nf3).

6.Nf3 c5 7.Be2 Nc6 8.Bb2 d5 9.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Be2 d5 7.Nf3 c5 8.0–0 Nc6 9.Bb2).

6.Nf3 d5 7.c4 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.a3 Be7 7.Nf3).

5.e3 c5

6.Bb5 Nc6 7.Nf3 0–0 8.0–0 a6 9.Bc6 bc6 10.Qe2 a5 11.Bc3 Ba6 12.d3 Ne4 13.Qe1 Nc3 14.Nc3 (14.Qc3? Bf6 15.d4 Bf1 16.Kf1 cd4 17.ed4 Rc8–+) 14...Bf6 15.e4 c4 16.d4 d5 17.Rb1 Rb8 (better is 17...de4!? 18.Qe4 Qd6=) 18.Rb8+/– Qb8 19.ed5 cd5 20.Nd5 Qd6 (20...c3 21.Qc3 Bf1 22.Nf6 gf6 23.Kf1 Qb1 24.Ne1 Re8=) 21.Nf6+– Qf6 22.Qe3 (22.Qa5 Bb7 23.Ne5 Qg5+–) 22...Qe6 (22...Bb7 23.Ne5+/–) 23.Qc3 (23.Qe6!? fe6 24.Rb1 c3+–) 23...Qb6 24.Re1 f6 25.d5 Qc5 26.Re6?? (better is 26.Qd4 Qb5 27.Qe4+–) 26...Bb7+= 27.d6 Bd5 28.Re3 Qd6 29.Qa5 Ra8 (29...Bf3 30.gf3 Qd1 31.Kg2 Qc2 32.Qd5 Kh8 33.Qf7+=) 30.Qc3 Kf7 Exerts pressure on the isolated pawn 31.Nd4+/– Re8 32.Re8 Ke8 33.Qe3 Qe5 34.Qd2 Qe4 35.f3 Qg6 36.Qe2 Kd7+/– 37.g4 h5 38.Kf2 hg4+= 39.fg4 c3?? 40.Qb5+– Kd6 41.Nf5 Ke5 42.Qe2 Be4 43.Ng3 Kd4?? 44.Ne4 Qe4 45.Qe4 Ke4 1–0. Yannick – Cccmember, playchess.de, 2004.

6.Nc3 Nc6 7.Nf3 Ne5 8.Ne5 d6 (8...0–0 9.Bb5+=) 9.Nc4 (9.Bb5!? Kf8 10.Nf3=) 9...0–0 10.Bd3 d5 11.Ne5 Bd6 12.Ng4?? (better is 12.Nf3–/+) 12...Bg4–+ ½–½. Willi_weizenkeim – Cccmember, playchess.de, 2004.

6.Nc3 Nc6 7.Bf6 Bf6 (< 7...gf6 8.Qg4+/–) 8.Bc4 Bc3 9.dc3 0–0 (9...Qf6 10.Ne2=+) 10.Nf3 (10.Qd6 Qh4 11.Bd5 Re8 12.Qc5 d6=) 10...Qf6=+ 11.0–0 Qc3 12.Bd5 Ne7 13.Rb1 Nd5 14.Qd5 Qa3 15.Ne5 Qc3 16.Nd3 (16.Rfd1 Qc2 17.Rbc1 Qf5–/+) 16...d6 17.Qd6 b6 18.Qc6 (18.Rfc1 Bf5–/+) 18...Bf5–+ 19.Rfc1 Bd3 20.cd3 Qd3 (20...Qd3 21.Rd1 Qg6–+) 0–1. Zarate,Edilberto – Pregun,Jorge, GT–04–0038 B, 2004.

6.d4 d6 7.Bf6 Bf6 8.c3 Qa5 9.Nf3 cd4 10.Nd4= Nc6 11.Bc4 d5 12.Be2 0–0 13.0–0 Bd4 14.cd4+= Re8 15.Qc2 Bd7 16.Qb2 Rec8 17.Qb7+= Bf5 18.Qa6 Rab8 19.Bd3 Bd3 20.Qd3 Ne7 21.Nd2 g6 22.Nf3 22...Rc3 23.Qd2 Rbc8 24.Ne5 Nf5 25.Rfd1 Nd6 26.a4 Qa6 27.Qe1 Kg7 28.Nd7 R8c4 29.Nc5 Qc6 30.Nd3 Qc8 31.Nf4 Qc6 32.a5 Ne4 33.f3 Nd6 34.Nd3 f6 35.Nf4 g5 36.Nh5 Kf7 37.Ng3 Rc2 38.e4 de4 39.fe4 h5 40.Nf1 Rb2 41.Rd2 Rd2 42.Nd2 Rd4 43.Qe3 Qc5 44.Re1 Nc4= 45.Nb3 Ne3 46.Nc5 Nc4 47.Nb3 Rd3 48.Rc1 Nd6 49.Nc5 Rd4 50.h4 gh4 51.a6 Ne4 52.Ne4 Re4 53.Kh2 Re7 54.Rb1 f5 55.Rb7 Kf6 56.Kh3 Rg7 57.Kh4 Rg2 58.Ra7 Rh2 59.Kg3 Ra2 60.Ra8 Ra4 61.a7 Kg7 62.Kh3 f4 63.Kh4 f3 64.Kg3 Ra3 65.Rc8 Ra7 66.Kf3 Ra3 67.Kf4 Rh3 68.Kg5= Rh2 69.Rc7 Kg8 70.Rc8 Kf7 ½–½. marekt – bicycle, ChessWorld.net, 2007.

6.Be2 Nc6 7.Bb2 Qb6 8.Ra2 d5 9.Nf3 Be6 10.Ng5 Bf5 11.0–0 h6 12.Nf3 Be6 13.d4 c4 14.Nc3 Ne4 15.Nd2 Nc3 16.Bc3 0–0 17.Rb2 Qc7 18.Qa1 Bd6 19.f4 Rac8 20.Nf3 Bg4 21.Kf2 Qe7–/+ 22.Kg3? Qe3–+ 23.Bd2 Bf4 24.Kg4 Qe2 25.Bf4 Qg2 26.Bg3 0–1. Gross,Wilhelm – Merten,Rainer, xv/17, 1987.

6.h3 0–0 7.c4 Nc6–/+ 8.Bh2 Ne4 9.Ne2? Bh4–+ 10.Ng3 Nf2! 11.Kf2 Qf6 12.Qf3 Qa1 13.Bd3 Qf6 14.Qf6 Bf6 15.Ne4 Bh4 16.Ke2 b6 17.Nd6 Ba6 18.Rf1 Bf6 19.Be4–/+ Rad8 20.d3 Ne7 21.g4 h6 22.Bg3 Bb2 23.Bh4 f6–+ 24.Kd2 Be5 25.Nf5 Rfe8 26.Ne7 Re7 27.Bd5 Kh8 28.Rf5 d6 29.a4 Bc8 30.Rf3 Bd7 31.Nc3 Bc3 32.Kc3 Rde8 33.e4 Ba4 34.Bg3 Rd8 35.Bh4 Kh7 36.Rf1 Bd7 37.Ra1 Bc8 38.Bc6 g5 39.Bg3 h5 40.Rf1 Kg7 41.Rg1 hg4 42.hg4 Bg4 43.Bf2 Be6 44.Be3 Kg6 45.Bd2 Rh7 46.Bb5 Rh3 47.Bc6 Rc8 48.Bb7 Rc7 49.Ba6 Rch7 50.Bf4 R7h4 51.Bd6 Re4 52.Bb5 Rd4 53.Be8 Kg7 54.Rg5 fg5 55.Be5 Kf8 (55...Kf8 56.Bd4 cd4 57.Kd4 Ke8–+) 0–1. Gross,Siegfried – Mrkvicka,Josef, 1. Argentine Cup Semifinal, 1999.

6.c4 Nc6

7.Bb2 0–0

8.Nf3 d5

9.Qc2 d4 10.Ng5 g6 11.h4 Ne5 12.ed4 cd4 13.f4 Neg4 14.Be2 h6 15.Nf3 Bf5 16.Bd3 Bd3 17.Qd3 Increasing the pressure on the isolated pawn on d4 17...Bc5 18.0–0 (18.Bd4?? Re8 19.Kf1 Nh5–+) 18...Qb6 19.Bc1 (19.Bd4?? Rad8 20.Nc3 Bd4 (20...Rd4?! 21.Nd4 Bd4 22.Kh1–+) 21.Nd4 Rd4–+) 19...Rfe8 (19...Nh5!? 20.Ne1 Qf6 21.g3 Ng3 22.Qg3 d3 23.Kg2 Qa1 24.Nd3–+) 20.a4–/+ Ne4 21.Ba3 Rad8 (21...Ng3 22.Bc5 Qc5 23.Na3–+) 22.Ra2 Ba3 23.Na3 Nc5 (better is 23...Nc3! 24.Raa1 Ne2 25.Kh1 Qf6–+) 24.Qb1–/+ Qf6 25.g3 d3 26.Nb5 Qb6 (better is 26...a6!? 27.Nc3 Ne3–/+) 27.a5= Qe6 28.Nc7 Qe2?? (better is 28...Qc4 29.Ne8 Re8=) 29.Ne8+/– Re8 30.Qd1 Qe6 31.Qc1 Ne4 32.Kg2 b5 (32...Ngf2 33.Rf2 Nf2 34.Ng1–+) 33.Re1 (33.ab6 ab6 34.Nd4 Qd7+=) 33...Qc4 (better is 33...Ngf2 34.Ng1 bc4+=) 34.Qc4+= bc4 35.Ra4 f5? (better is 35...Kg7+/–) 36.Rc4+– Re7 37.Rd4 1–0. combijack (1800) – zeussino (1630), gameknot.com, 2011.

9.d4 Qb6 10.Qc2 Bf5 11.Qc1 Na5 12.Nbd2 Rac8 13.dc5 Bc5 14.Be2 dc4 15.0–0 Be3 16.fe3 Qe3 17.Rf2 c3 18.Nf1 cb2 19.Qb2 Qc3 20.Qc3 Rc3 21.Ng3 Bd3 22.Bd3 Rd3 23.Rc2 Rfd8 24.Rc7 R3d7 25.Rac1 Nc6 26.Rd7 Nd7 27.Ne4 Ndb8 28.Rb1 b6 29.Rc1 f6 30.Rc3 Kf7 31.Kf2 Rd7 32.Ke3 Ne7 33.Rc4 Nbc6 34.g4 Na5 35.Rc2 Nd5 36.Ke2 Nf4 37.Ke3 Ne6 38.g5 f5?? 39.Ne5= Ke7 40.Nd7 Kd7 41.Rd2 Ke7 42.Nd6 Ng5 43.Nf5 Kf6 44.Nd6 ½–½. Wehmeier,Sven – Peschlow,Patrick (2145), NRW–ch U20 Hiddenhausen, 1998.

9.d4 Re8 10.Be2 Bg4 11.Nbd2 dc4 12.Nc4 cd4 13.Nd4= Be2 14.Qe2 Rc8 15.Rd1 Nd4 16.Rd4 Qc7 17.0–0 b5 18.Nd2 Qc2 19.Rb1 a6 20.Qd1 Qd1 21.Rd1 Rc2 22.Rb1 Rec8 23.Rd3 a5 24.Nb3 a4–/+ 25.Nd4?? Rb2!–+ (25...Rb2 26.Rdd1 Ba3 27.Nb5 Rb1 28.Rb1 Bb2–+) 0–1. Gross,Wilhelm – Merten,Rainer, xv/19, 1987.

9.cd5 Qd5 10.Nc3 Qd8 11.Qc2 g6 12.Be2 Re8 13.0–0 Bf8 14.Bc4 Bg7 15.Ng5 Be6 16.Ne6 fe6 17.Rad1 a6 18.d3 b5 19.Nb5 (better is 19.Bb3!?=) 19...ab5–/+ 20.Bb5 Qb6 21.a4 Red8 22.d4 c4 23.Qc4 Ne7 24.Rb1 Rac8 25.Qe2 Ned5 26.Rfc1 Qd6 27.h3 Ne4 28.Rc2?? (better is 28.Qd3 Ndf6 29.Ba3 Rc1 30.Rc1+/–) 28...Ndc3 29.Bc3 (better is 29.Qd3!? Nb1 30.Rc8 Rc8 31.Qe4–/+) 29...Nc3–+ (29...Rc3?! 30.Bd3 Rc2 31.Qc2= (31.Bc2? Nc3 32.Qc4 Nb1 33.Bb1 Kh8–+)) 30.Rc3 Rc3 31.Qa2 Qd5 32.Qd2 Rdc8 33.g3 Rc2 34.Qe1 Qf3 (better is 34...e5!? 35.Ba6 Rf8–+) 35.Bd7–/+ Rf8 36.Be6 Kh8 37.Bg4 Qf2 38.Qf2 Rcf2 39.h4?! (39.d5 Be5–+) 39...Ra2 (39...Bh6 40.h5 Be3 41.Kh1–+) 40.Bd7 (40.Rb3–+) 40...Re2 41.Rb3 Bh6 42.Bh3 (42.e4 Be3 43.Re3 Re3 44.e5 Rg3 45.Kh2–+) 42...Be3 43.Kh1 Re1 44.Kh2 Bg1 45.Kg2 Rf2 0–1. combijack (1770) – beatlesrob (1705), gameknot.com, 2010.

9.cd5 Qd5 10.Nc3 Qh5 11.Be2 Qg6 12.g3 Re8 13.d4 b6 14.Bb5 Bd7 15.d5 Nd8?? (15...Nb8 16.Nh4 Qg5 17.d6+=) 16.d6 (better is 16.Ne5 Qf5 17.Nd7 Nd7 18.g4+–) 16...Bf8= 17.a4 Nb7 18.Nh4 Qh6 19.Nd5 Nd5 20.Bd7 Ne3 21.fe3 Re3 22.Kf2 Nd6 (22...Bd6?? 23.Nf5 Qg5 24.Ne3+–) 23.Bc1 Ne4?? (better is 23...Qf6 24.Ke3 Qa1+=) 24.Kg2+– Nc3 25.Be3 Qe3 26.Qe1 Qd4 27.Bc6 Rd8 28.Rf1 c4 29.Qf2 (better is 29.Rf4!? Qd2 30.Qd2 Rd2 31.Kh3+–) 29...Qf2+/– 30.Rf2 Rc8 31.Bd7 Rd8 32.Bb5 Nb5 (better is 32...Nd5!?+/–) 33.ab5+– c3 34.Ra7 g6 35.Raf7 Bc5 36.Rc7 Bf2 37.Kf2 Rd2 38.Ke1 Rb2 (better is 38...Rh2 39.Rc3 Rb2+–) 39.Rc3 Rb5 40.Nf3 Kg7 41.Ke2 g5 42.Nd4 Rb2 43.Rc2 Rc2 44.Nc2 Kf6 45.Kd3 Kf5 46.Ne3 Ke5 47.Nc4 Kf5 48.h3 h5 49.Nb6 (better is 49.Kd4!? h4 50.gh4 gh4+–) 49...h4 50.g4 Kf4 51.Ke2 Kg3 52.Nc4 Kh3 53.Kf3 Kh2 54.Ne3 (54.Kf2 Kh3 55.Ne5+–) 54...Kg1 55.Nf5?? (55.Nc2 h3 56.Nd4+–) 55...h3= 56.Nd4 h2 57.Ne2 Kf1 58.Ng3 Kg1 59.Ne2 Kf1 60.Ng3 ½–½. combijack (1750) – julius_cesar (1625), gameknot.com, 2011.

9.Be2 dc4 10.Bc4 Bf5 11.0–0 Na5 12.Be2 Qb6 13.Bc3 Rad8 14.Qa4 Nb3 15.Ra2 Bd7 16.Qf4 Nd5 17.Qe5 Nc3 18.Nc3 Bf6 19.Qf4 Be6 20.Rb1 Qa5 21.Ne4 Be7 22.Qe5 Rfe8 23.Qc3 Qc3 24.Nc3 Nd4 25.Rab2 Ne2–/+ 26.Ne2 b6 27.a4 Bf6 28.d4 Bc4 29.Rd1 Kf8 30.h3 Be2 31.Re2 Bd4! 32.Nd4 Rd4 33.ed4 Re2 34.dc5 bc5 35.Rd7 Re1 36.Kh2 Re7 37.Rd8 Re8 38.Rd7 a6 39.Ra7 Re6 40.Rc7 Re4 41.a5 c4 42.Rc6 Ke8 43.Ra6= Kd7 44.Ra7 Kc6 45.a6 Re8 46.Rf7= Rc8 47.Rg7 c3 48.Re7 c2 49.Re1 Kb6 50.Rc1 Ka6–/+ 51.f4 Kb5–+ 52.f5 Kb4 53.Kg3 Kc3 54.Kf4 Kd2 55.Rc2 Rc2 56.g4 Rc4 57.Ke5 Ke3 58.f6 Kf3 59.g5 Kg3 60.Kf5 Rf4 61.Ke5 Rf2 62.Ke6 Kh4 (62...Kh4 63.f7 Kg5–+; 62...Kh3 63.Kf7=) 0–1. Gomez,Gustavo Daniel (2520) – Mercadal Benejam,Josep (2515), corr Najdorf mem–A, 2001.

9.cd5 Nd5

10.Qc2 a6 11.Be2 b5 12.0–0 Na5 13.Nc3 Nb6 14.d3 Re8 15.Rab1 Bf8 (15...Bf5 16.Rfd1=) 16.Ne4 Na4 17.Ba1 Bf5 18.Ng3 Be6 19.Nd2 Rc8 20.Rfd1 Qe7 21.Nc4 Nc6 (worse is 21...bc4 22.dc4 Bd7 23.Qd2 Nc4 24.Bc4+/– (24.Qd7?! Qd7 25.Rd7 Na3=)) 22.h3 (22.Bf3 Qd7=) 22...f6 (worse is 22...bc4 23.dc4 Qc7 24.Qa4+/–) 23.Bf3 Red8 24.Ne2 Bf7 25.Be4 Qe8 26.Nf4 Kh8 27.Bf5 (27.Rbc1 Ne5 28.Nb2 Nb2 29.Qb2 Bd6=) 27...Rc7 28.Bg4 (28.Rbc1 Ne7 29.Be6 Ng6 (worse is 29...bc4 30.Bf7 Qf7 31.Qa4+=) 30.Bf7 Qf7 31.Ng6 Qg6+=) 28...Ne7 (28...Ne5 29.Ne5 fe5 30.Ne2+=) 29.Nb2= Nb6 (29...Nb2 30.Bb2 Ng6 31.Bc3 Nf4 32.ef4=) 30.Nc4 Nbd5 31.Ne6 Be6 (31...bc4? 32.Nd8 Qd8 33.dc4 Ne3 34.fe3+–) 32.Be6 Rc6 (worse is 32...bc4 33.dc4 Ne3 34.Rd8 Qd8 35.fe3+=) 33.Bd5 Nd5 34.Na5 Rcc8 35.Qe2 Rc7 36.Qf3 Nb6 37.Nb7 Rdc8 38.Na5 Na4 39.Qe2 (39.e4 Bd6+=) 39...Qg6+= 40.Rbc1 Rd7 41.e4 f5 42.e5 Qb6 43.Nb3 Qe6 44.Nd2 Rcd8 45.Nf3 h6 46.g3 (46.Rc2 c4 47.Rcd2 c3–+) 46...Nb6 47.Nh4 (47.d4 Rd5–/+) 47...Be7 (47...c4!? 48.dc4 Ba3 (48...bc4?! 49.Rd7 Rd7 50.Bb2=) 49.Rd7 Rd7–/+ (worse is 49...Qd7 50.e6 Qd2 51.Qd2 Rd2 52.Re1+/–; 49...Nd7?! 50.Rd1=)) 48.Ng2 Nd5 49.Kh2 Rf8 50.f4 Kh7 51.Bb2 a5 (51...Kg8 52.Qh5+=) 52.d4= c4 53.a4 ba4 54.Rc4 a3 55.Ba1 Rb8 56.Rdc1 Rdb7 57.g4 (57.Rc6 Qf7=) 57...Rb6 58.R4c2 a4 59.Rc4 Qd7 (59...Rf8 60.Ra4 fg4 61.Qg4 Qg4 62.hg4=) 60.R4c2 (60.Ne3 Ne3 61.Qe3 Rb2 62.Bb2 ab2–+) 60...Rb3 61.Rf1 Rb1 62.Rd1 R8b3 63.g5 (63.Rb1 Rb1 64.Ra2 Qc6+=) 63...g6 (63...Rd1 64.Qd1 Qe6 65.h4+=) 64.h4 Rd1 65.Qd1 Qb5 66.Qe2 (66.gh6 Rb1 67.Rc1 a2–/+) 66...hg5 (better is 66...Qe2!? 67.Re2 Rf3–/+) 67.Qb5= Rb5 68.hg5 Rb1 69.Ra2 Kg7 70.e6 Rf1 0–1. forsetinn (2470) – trickyknight (2635), gameknot.com, 2016.

10.Qc2 Be6 11.Bd3 f5 12.0–0 =+.

10.Qc2 Re8 11.Bd3= Kh8 (11...g6 12.Bb5=) 12.Be4 f5 (12...Bg4 13.Nc3 (< 13.Bh7 Bf6–/+) 13...Nc3 14.Bc3= (14.Qc3? Bf6 15.Qc2 Bb2 16.Qb2 Re4–+)) 13.Bd5 (13.Bf5!? Bf6 14.Bc8 Rc8 15.Bf6 Qf6 16.Nc3+=) 13...Qd5=+ 14.Nc3 Qd7 15.Ne2 b6 16.h4 (16.Rd1 Bb7=+) 16...Ba6–/+ 17.Nf4 Bd6 18.Nh5 Be5 19.d4 (19.Ne5 Ne5 20.Be5 Re5 21.Qc3–/+) 19...Nd4 (better is 19...cd4!? 20.Rd1 Qd5–+) 20.0–0–0=+ Qf7 (< 20...Nc2 21.Rd7 Bb2 22.Kb2 Ne3 23.fe3 Re3 24.Re1 (24.Ng7 Rg8 25.Nf5 Rg2 26.Nd2 Rd3 27.Rd3 Bd3–+; 24.Rg7?! Rg8 25.Rg8 Kg8+/–) 24...Re1 25.Ne1+/–) 21.ed4 cd4 22.Ne5 Re5 23.Bd4+/– Re2 24.Bg7 Kg8= 25.Rd2 Qh5 26.Bc3 Re4 27.Rd7+= Rc8 28.Kb1 Qe2 29.Rd2 Qb5=+ 30.Ka1 Qc5 31.Qa2 Bc4 32.Qb2 Rce8 33.Bh8 Qf8 34.Qc3 b5 35.Rd7 Bf7 36.Bf6 a5 37.Rhd1 b4 38.Qg3 Rg4–/+ 39.Qc7 Be6–+ 40.Be5 Bd7 41.Rd7 Rc8?? 42.Qb7+= Rc5 43.f4 Rg3 44.Bd4 a4 45.ab4 Ra3 46.Kb1 Rb3 47.Bb2 Rb2 48.Kb2 Rc8 49.Ka3 (49…Kh8 50.Rf7 Rc3 51.Kb2 Rb3 52.Ka2+–) 1–0. Diener,Rudolf – Rausch,Wilfried, corr ICCF EU–M–971, 1993.

10.Qc2 Bf6 11.Nc3 Nc3 12.Bc3 Nd4 13.Bd4 cd4=+ 14.Rd1 Bg4 15.Be2 Qa5 16.Nd4 Be2 17.Ne2 Qa3 18.Rb1 Rfc8 19.Qf5 Rc5 20.Qe4 Qa2 21.Qb7 Rcc8 22.d4 Bd8 23.f4 (23.f4 Bh4 24.g3+=). Boehnke,Hartmut (2095) – Class,Wolfgang (2330), remoteschach.de, 2004.

10.Qc2 Bf6 11.Nc3 Ne5 =.

10.Qc2 Bf6 11.Bc4 Bg4 12.Nc3 Nc3 13.Bc3 Rc8 14.0–0 (14.Bd3 Bf3 15.gf3 Nd4+=) 14...Bf3 15.gf3 Nd4 (15...Bc3!? 16.dc3 Ne5+=) 16.ed4= b5 17.dc5 bc4 18.Rae1 (18.Bf6!? Qf6 19.Qc4 Qf3 20.Qc3 Qc3 21.dc3 Rc5 22.Rfc1=) 18...Bc3+= 19.Qc3 Rc5 20.Re4 Rd5 21.Qc4 Qg5 22.Kh1 Qd2 (22...Rd2 23.Qc3 g6 24.Re3+=) 23.Rfe1+= Rf5 24.R1e2 (24.R4e2 Qd6 25.Qb4 Qb4 26.ab4 a6+=) 24...Qd6 25.R2e3 h5 (25...Rh5 26.h4+=) 26.Qd4= Qa6 27.Qd3 Qf6 28.h4 (28.Re8 Re8 29.Re8 Kh7+=) 28...Rd8 29.Qd8 Qd8 30.Re8 Qe8 31.Re8 Kh7 32.Kg2 Ra5 33.Re3 Kg6 34.Rc3 Kf5 35.Kg3 g6 36.f4 Ra4 37.f3 Ra5 ½–½. forsetinn (2465) – trickyknight (2635), gameknot.com, 2016.

10.Nc3 Be6 11.Bb5 =+.

10.Nc3 Bf6 11.Qc2 Ne5 =+.

10.Nc3 Bf6 11.Qc2 Re8 12.Be2 Bg4 13.0–0 Bc3 14.dc3 Qe7 15.Rfe1 Nc7 16.h3 Bh5 17.c4 Rad8 18.Rad1 Bg6 19.Qc3 f6 20.Nh4 Ne5 21.Ng6 Ng6 22.Bf3 b6 23.Qc2 Ne5 24.Be4 g6 25.f4 Rd1= 26.Rd1 Nf7 27.Bg6 Qe3 28.Kh1 hg6 29.Qg6 Kf8 30.Bf6 Ne6 31.f5 Qh6 32.Qh6+/– Nh6 33.fe6 Re6 34.Bg5 Nf5?? 35.Rf1+– Kg7 36.Rf5 Re1 37.Kh2 Kg6 38.g4 Re2 39.Kg3 Rc2 40.h4 Rc4 (40...Rc3 41.Rf3 Rc4 42.Bf4+–) 1–0. Schiefelbusch,Dirk (2120) – Hilverda,Alexander (2065), Dortmund op–A, 2003.

10.Nc3 Bf6 11.Be2 Nc3 12.Bc3 Bc3 13.dc3 Qf6 14.Qb3 Be6 15.Qb2 Rad8 16.0–0 b6 17.Rfd1 Rfe8 18.Rd8 Rd8 19.Rd1 Rd1 20.Bd1 Kf8 21.Qd2 Ke7 (21...Bf5 22.Qd5=) ½–½. Martello,Juan – Schwertel,Gottfried, corr 3GMM–38, 1996.

10.Be2 Qb6 11.Qc2 Bf5 12.d3 c4!–+ 13.Bc3 cd3 14.Bd3 Ne3! 15.Bf5 Nc2 16.Bc2 Qb5 17.Nbd2 Rfe8 18.Kd1 Rac8 19.Re1 Bf6 20.Bf6 Re1 21.Ke1 gf6 22.Rb1 Qc5 23.Be4 Qa3 24.Rb7 Re8 25.Kd1 Re4! 26.Ne4 Qa4 (26...Qa4 27.Kd2 Qe4–+) 0–1. Christensen,Tobias – Callergard,Robert, Naestved, 1988.

10.Be2 Bf5 11.d3 Bf6 12.Qc1 Qa5 13.Nbd2 Nc3 14.Nc4 Ne2–/+ 15.Ke2 Qd8 16.Rd1 Bg4 17.Bf6 Qf6 18.Qb2 Bf3 19.gf3 Qe7 20.Rg1 f6 21.Kf1 Rad8 22.Rd1 Kh8 23.Rg3 Rd7 24.f4 Rfd8 25.Qc3 b5 26.Nb2 Qd6 27.Rc1 b4 28.ab4 Nb4 29.Qc5 Nd3 30.Qd6= Rd6 31.Nd3 Rd3 32.Ke2 (32.e4 R3d7=) ½–½. Feilmayr,Erwin – Bendig,Frank, corr SOK–90–65, 1990.

10.Be2 Bf6 11.Nc3 Nc3 12.dc3 Qb6 13.Qc2 Bf5 14.Qc1 Rfd8 15.0–0 Bd3 16.Bd3 Rd3 17.Qc2 Rad8 18.Rab1 Qa5 19.c4=+ Bb2 20.Qb2 R8d7 21.Ne5= Ne5 22.Qe5 Qd8 23.Qc5 b6 24.Qb5 Ra3=+ 25.g3 h6 26.Qb2 Rad3 27.Qb5 Rd2 28.Ra1 Rc2 29.Qb3= Rdd2 30.Qb5 Qf6 31.Qb4?? Rf2 32.Rae1 (32.Qb2 Qf3 33.Qg7 Kg7 34.Rf2 Qf2 35.Kh1 Qh2#) 0–1. Gross,Wilhelm – Merten,Rainer, xv/23, 1987.

5.e3 Nc6

6.Bb2 d6 7.Nf3 0–0 8.Be2 Rb8 9.d4 b5 10.Nbd2 Qe8 11.0–0 d5 12.c3 Bd6 13.Qc2 Na5 14.Bd3 Nc4 15.Rfe1 Bb7 16.h3 Ne4=+ 17.Be4 de4–/+ 18.Nh2 Nd2 19.Qd2 f5 20.Qd1 Bd5–+ 21.Nf1 Qf7 22.Nd2 f4–+ 23.f3 fe3 24.Re3 Bf4 25.Re2 e3 26.Nf1 Bc4 27.Ne3 Be2 28.Qe2 Rfe8 29.Bc1 Qb3 30.Qd3 Be3 31.Be3 Qb2 32.Rd1 Qa3 33.d5 a5 34.Bf4 Qc5 35.Kh1 Ra8 36.d6 cd6 37.Bd6 Qc4 38.Qc4 bc4 39.Bc5 a4 40.Rd7 a3 (40...a3 41.Ba3 Ra3–+) 0–1. Pohl,Ursula – Zura,Jutta, Weimar, 1968.

6.d4 Ne5=+ 7.de5 Ne4 8.Bc4 0–0 9.Nf3 Bh4 10.Qd4+/– d5 11.Nh4 Qh4= 12.g3 Ng5 13.Qh4+/– Nf3 14.Kf1 Nh4+= 15.Bd5 Ng6 16.f4 Ne7 17.Nc3 Rd8 18.Rd1 Nd5 19.Rd5 Bg4 20.Kf2+/– Rd5 21.Nd5 c6 22.h3 cd5+= 23.hg4 Rc8 24.Rd1 Rc2 25.Kf1 Kf8 26.Rd5 Ke7 27.a4 Ra2 28.Rd4 a5 29.e4 Ra1 30.Kg2 Ra2 31.Kh3 Rb2= 32.Rc4 Rb4 33.Rc7 Kf8 34.Rc8 Ke7 35.Rg8 Ra4 36.Rg7 Re4 37.Rh7 b5 38.g5+= Kf8 39.Rh8 Kg7 40.Rb8 b4 41.Ra8 b3 42.Ra5 Rb4 43.Ra1 b2 44.Rb1 Kg6 45.Kg4 Kh7 46.Kf3 Kg6 47.g4 Rb3 48.Kf2 Rh3 49.Kg2 Rb3 50.Kh2 Rb8 51.Kh3 Rb6 52.Kh4 Kg7 53.f5 Rb7 54.Kh5+– Kh7 55.g6 fg6 56.Kg5 gf5+/– 57.gf5 Rg7 58.Kf6+– Rb7 59.e6 Rb6?? 60.Kf7 Kh6 61.e7 Rb7 62.Kf8 Rb8 1–0. COMP – COMP, Blitz, 2002.

6.Nf3 Ne5 7.Ne5 0–0 8.d4 d6 9.Nf3 c5 10.Bd3 cd4 11.ed4 d5 12.0–0 Bg4 13.Nbd2 Qa5 14.Qb1= Rab8 15.Qb3 Bd6 16.Rfe1 Rfd8 17.Kh1 Bf4 18.Qb4= Qc7 19.Re7 Bd7 20.Re2=+ Re8 21.Rae1 Ng4 22.h3= Re2 23.Re2 Nf6 24.Ne5 Be6 25.Qa4 Qb6 26.Qb4 Qd8 27.Ndf3 Qc7 28.Qa4 Ra8 29.Re1 Qd8 30.Qb3 Qe7 31.Qb4 Qb4 32.ab4 Rc8 33.g3+= Bh6 34.g4 Ne4 35.Kg2 Rc3 36.Be4+= de4 37.Re4 Rc2 38.g5 Bg5= 39.Ng5 Bd5 40.Kg3 f6 41.Rg4 fg5 42.Rg5 Rc3 43.Kh4 Rb3=+ 44.Ng4 Bf7 45.Rc5 h6 46.f4 Rb4 47.Rc8 Kh7 48.Rc7 Bb3 49.Nf6 Kg6=+ 50.Nh5 a5 51.Rg7 Kf5 52.Re7 a4 53.Re5 Kg6 54.d5 a3 55.Re6 Kf7 56.Rf6 Ke8 57.Rh6 a2 58.Re6 Kd8 59.Re1 Bd5 60.Rd1 Ke7 61.Re1 Re4 62.Ra1 b5 63.Kg5 Re3 64.Nf6 Bc4 65.h4 b4 66.Ng4 Re2 67.h5 b3 68.Ne3 Re3 69.Rc1 b2 (69...b2 70.Rc3 Rc3 71.h6 b1Q 72.h7 Qg1 73.Kh4 Qg2 74.h8Q Rh3#) 0–1. Doctor? 3.0 – EXchess 3.11, 2003.

6.Nf3 Ne5 7.Ne5 0–0 8.Be2 d6 9.Nf3 c6 10.0–0 Re8 11.Nc3 b5 12.e4 Qc7 13.Bd3 a5–/+ 14.Ne2 d5 15.e5 Ng4 16.Ned4 Bc5 17.c3 Bd7 18.h3? Ne5–+ 19.Qc2 Nd3 20.Qd3 h6 21.Nf5 Qf4 22.Ne3 Bh3 23.gh3 Qf3 24.h4 Re4 25.Rfd1 Rh4 (25...Rh4 26.Qh7 Kh7 27.Nd5 Qf2#) 0–1. tpt456 – goco (1810), internet, 2007.

6.Nf3 Ne5=+ 7.Ne5 d6 8.Nd3 0–0 9.Nc3 c6 10.Be2 Be6 11.0–0 Nd5 12.Rb1 Nc3–/+ 13.dc3 Qa5 14.Nb4?? Qe5 15.Nd3=+ Qg5 16.g3 Bh3 17.Re1 Qd5 18.Nf4 Qd1=+ 19.Red1 Bf5 20.Bd3 Bg4 21.Re1 b5 22.c4 a6 23.h3 bc4 24.Bc4= (24.Bc4 Bc8 25.e4+=). madidog – ureo, ChessWorld.net, 2005.

6.Bf6 Bf6 7.d4 Qe7 8.Ne2 d6 (better is 8...0–0!?–/+) 9.Nbc3= Bg4 (9...0–0 10.Nd5 Qd8 11.Nec3=) 10.Nd5+= Qd8 11.h3 Bh5 12.Qd2 Ne7 (12...Bg5 13.Nef4 Bf4 14.Nf4+/–) 13.Nf6 gf6 14.Nf4 Bg6 15.Rb1 Rb8 16.h4 Be4 17.Nh5 Nc6 18.Ng3 Qe7? (better is 18...f5+–) 19.d5 1–0. marekt (2130) – zrenjanin (2035), gameknot.com, 2015.

6.Bg3 0–0 A) 7.Nf3 Ne4 8.d4 d5 9.Bd3 Re8 10.Bf4 Bd6=+; B) 7.Nc3 d5 8.Nge2 a6 9.Nf4 d4 10.ed4 Nd4–/+; C) 7.Bd3 d5 8.Nc3 Bg4 9.Nge2 Nh5 10.Qb1 Rb8=+; D) 7.Be2 Ne4 8.d4 d5 9.Nf3 Bg4 10.Bf4 Re8=+; E) 7.d4 Re8 8.d5 Nb8 9.Nc3 d6 10.Nf3 Nh5=.

6.Bg3 a6 A) 7.Nf3 d5 8.Bd3 Ne4 9.Nc3 Bf5 10.Ne5 Ng3=+; B) 7.Nc3 d5 8.Bd3 Bg4 9.Nge2 0–0 10.h3 Be6=+; C) 7.Bd3 d5 8.Nc3 Bg4 9.Nge2 0–0 10.h3 Be6=+; D) 7.d4 d5 8.Bd3 Bg4 9.Ne2 Nh5 10.Nd2 b5=.

6.Bg3 Rb8 A) 7.Nc3 0–0 8.Nf3 a6 9.d4 d5 10.Bd3 Bg4=+; B) 7.Bd3 d5 8.Nc3 Bg4 9.Nge2 Nh5 10.f3 Be6=+; C) 7.Nf3 d5 8.Bb5 0–0 9.0–0 a6 10.Bc6 bc6=+; D) 7.Bb5 a6 8.Bd3 0–0 9.Nf3 d6 10.0–0 Bg4=+; E) 7.d4 d5 8.Bd3 Bg4 9.Ne2 Nh5 10.f3 Be6=.

6.Bg3 d5 7.d4 0–0 8.c4 Bg4 9.Nf3 Bf3 10.Qf3+= dc4 11.Bc4 Nd4 12.ed4 Qd4 13.Qc3 Bb4 14.ab4 Rfe8 15.Be2 Re2! 16.Ke2 Re8 (16...Re8 17.Qe3 Re3 18.fe3 Qa1–+) 0–1. Sunyer – Maristany, Barcelona, 1935.

6.Bg3 d6 A) 7.Nf3 Bg4 8.Nc3 0–0 9.Rb1 Rb8 10.Be2 a6=; B) 7.Nc3 a6 8.Nf3 0–0 9.d4 d5 10.Bd3 Bg4=; C) 7.Be2 Ne4 8.Nf3 0–0 9.d4 Bf5 10.Ra2 Re8=+; D) 7.Bd3 a6 8.Nf3 0–0 9.0–0 Bg4 10.Nc3 b5=+; E) 7.d4 d5 8.Bd3 Bg4 9.Ne2 0–0 10.f3 Be6=.

6.Bg3 Ne4 A) 7.d4 h6 8.Bf4 d5 9.Bd3 g5 10.Bg3 h5=+; B) 7.Qf3 d5 8.d4 h5 9.h3 Rh6 10.Bb5 Bg4–/+; C) 7.Nf3 d5 8.d4 0–0 9.Bd3 Re8 10.Bf4 Bd6=+.

6.Bg3 h6 7.Nc3 0–0 8.Nf3 a6 9.d4 d5 10.Ne5 Qe8 =.

6.Bb2 0–0

7.c4 d6 8.d4 Ne8 9.Nf3 Bf6 10.Nbd2 g6 11.Qc2 Bg7 12.d5 Ne7 13.Bg7 Kg7 14.Be2 f5 15.0–0 Nf6 16.Nd4 Neg8 17.N2f3 Ne4 18.Bd3 Nc5 19.Be2 Nf6 20.Nb3 Nfe4 21.Nc5 Nc5 22.Nd4 a5 23.f3 a4 24.e4 Qf6 25.Nb5 Rf7 26.ef5 Bf5 27.Qb2 Qb2 28.Rfe1 Re8 29.Rab1 Bb1 0–1. chessleon (2165) – alencro (2575), net–chess.com, 2014.

7.Nf3 d6 8.Be2 a6 9.a4 a5 10.0–0= b6 11.d4 d5 12.Nbd2 h6 13.Ne5 Ne5 14.de5 Nd7 15.c4 c6 16.Bf3 Bb7 17.Qc2 Nc5 18.Rfd1 Qc7 19.Bg4 Bc8 20.Bh5 Be6 21.f4 Qd7 22.Rf1 Bf5–/+ 23.Qc3 Qe6 24.cd5 cd5 25.Nf3 g6 26.Nd4+= Qd7? 27.Nf5?? Qf5= 28.Be2 Rab8 29.g4 Qe6 30.f5+/– gf5 31.gf5 Qc8 32.f6 (32…Bd8 33.Kh1+/–) 1–0. Schuehler,Ernst – Mennie,Norman, corr 3GMM–45, 1995.

7.c4 d5=+

8.Nf3 Na5 9.cd5 Qd5 10.Nc3 Qb3 11.Rb1 Qd1 12.Rd1 Rd8 13.d4 Be6 14.Ne5 c6 15.Be2 Nd7 16.Nd7 Rd7 17.Ne4 Nc4 18.Bc4 Bc4 19.Rc1 (19.Nc5 Bc5 20.dc5 Rad8 21.Rd7 Rd7+=) 19...Bd5+= 20.Nc5 (20.Nc5 Bc5 21.dc5+=). Gierth,Karlheinz (2260) – Petzold,Gunter (1970), RSXCT–SaxoniaCup, 2008.

8.Nf3 Be6 9.Qc2 =+.

8.Nf3 Bf5 9.Nc3 d4 10.Ne2 de3 11.fe3 Bd3 12.Nf4 Bf1 13.Rf1 Re8 14.Kf2 Ne4 15.Kg1 Bf6 16.Bf6 Qf6 17.Nd5 Qd6 18.Qc2 Na5 19.Nd4 c6 20.Nc3 Nc3 21.Qc3 b6 22.Rf4 c5 23.Nf5 Qe5 24.Rc1 Rad8 25.Qc2 Re6 26.Rh4 h6 (26...g6!? 27.Nh6 Kg7=) 27.Rg4 Rg6 28.Re4?? (better is 28.d4 Qe8 29.Rf4+=) 28...Rg2 (better is 28...Rd2! 29.Qd2 Qe4–+) 29.Kg2–/+ Rd2 30.Qd2 Qe4 31.Kg1 Qf5 32.Qg2? (better is 32.Qd5!? Qg6 33.Kh1+=) 32...Qd3–+ 33.Re1 Nc4 34.Qa8 Kh7 35.Qa7 Qd2 36.Rf1 Qe3 37.Rf2 f6 38.Qa6 Ne5 39.Kg2 Ng4 40.Re2 Qf4 41.Qd3 f5 42.Kg1 c4 43.Qc3 b5 44.h3 Nf6 45.Re7?? Qg5 46.Kf1 Nd5 (46...Nd5 47.Rg7 Qg7 48.Qg7 Kg7–+) 0–1. combijack (1790) – wallaby66 (1655), gameknot.com, 2010.

8.Nf3 Bf5 9.Be2 dc4 10.Bc4 Na5 11.Be2 c5 12.Nc3 Rc8 13.d3 c4 14.d4 Nb3–/+ 15.Ra2 Qa5 16.0–0 Nd5 17.Nd5 Qd5–/+ 18.Bc3 Be4 19.Ne1 b5 20.Bf3 a5 21.Be4 Qe4 22.Qc2 f5 23.Qe4 fe4 24.Nc2 Rf5 25.f3 ef3 (25...Rcf8 26.f4–/+). Gomez,Gustavo Daniel – Mrugala,Arthur, corr, 2003.

8.Nf3 Bg4 9.cd5 Nd5 10.Be2 Re8 11.0–0 Bd6 12.Nc3 Nb6 13.Qc2 Ne5 14.Ne5 Be2 15.Ne2 Be5 16.Be5 Re5 17.d4 Ra5 18.Qc3 Ra4= 19.Qb2 Qe7 20.Nc3 Ra5 21.a4 c6 22.Rfb1 Re8 23.Qb3 Qh4 24.Ne2 Rh5 25.h3 Rf5 26.Ng3 Rf6? 27.a5+/– Nd5 28.Qb7 Ne3? 29.Qe7+– (29.Qe7 Rf8 30.Qe3+– (< 30.fe3 Rf1 31.Nf1 Qe7=+); 29.fe3 Qg3 30.Kh1 Rf2 31.Qc6 Rd8+=) 1–0. Kreuzer,Uwe – Reichstein,Hans Joerg, Verbandsliga Nord Baden, 1992.

7.Nf3 d5

8.d4 Na5 9.Nbd2 b5 10.Bc3 (worse is 10.Bb5 Rb8 11.Bc3 Rb5–/+) 10...Nc4 11.Nc4 bc4 12.Be2 a5 13.0–0 Ne4 14.Qe1 c6 15.Bb2 Bd6 16.a4 Rb8 17.Ba3 Bb4 18.Bb4 ab4 19.Nd2 Nc3 20.Nb1 Ne2 21.Qe2 Bf5 22.Nd2 b3 23.e4 (23.cb3 Bd3 24.Qd1 Bf1 25.Kf1 cb3 26.Nb3 f5+=) 23...b2 24.Rab1 Re8 25.f3 c3 26.Qd3 cd2 27.ef5 Qg5 28.f4 Qg4 0–1. Jamieson,Ian M – Mackintosh,Iain (2450), Scottish CCA Webserver Open – Section A, 2007.

8.Be2 Ne4 9.d3 Nc5 (9...Bf6 10.de4 Bb2 11.Ra2 de4 12.Qd8 Rd8 13.Rb2 ef3 14.Bf3 Ne5) 10.Nbd2 (10.Nc3 Bf5 11.0–0 Qd7 12.d4 Ne4 13.Ne5 Qe6 14.Ne4 Be4) 10...Na4 (10...Qd6 11.0–0 Na4 12.Qc1 Bf5 13.c4 g6 14.cd5 Qd5) 11.Qc1 (11.Qb1 Bd7 12.0–0 f6 13.c4 dc4 14.dc4 Bd6) 11...Nb2 (11...Qd6 12.0–0 Be6 13.c4 Rab8 14.cd5 Qd5) 12.Qb2 Bf6 (12...Qd6 13.0–0 Bf6 14.d4 b6) 13.d4 Na5 (13...g6 14.0–0 Re8) 14.0–0 c5 15.c4 Bg4 16.cd5 cd4 (16...Qd5 17.Qb5 b6 18.Rac1=) 17.ed4 (better is 17.Ne4!? Be7 18.Nd4 (worse is 18.Qd4 Nb3 19.Qc4 Na1 20.Ra1 Rc8+=; worse is 18.ed4 Qd5 19.Nc3 Qd6=) 18...Be2 19.Qe2 Qd5 20.Qf3=) 17...Qd5+= 18.Qb5 (18.Rfe1!?+=) 18...Qb5–/+ 19.Bb5 Rfd8 20.Rac1 Bd4 21.Rfe1? (21.a4 a6 22.Be2 Ba7–/+) 21...a6 (21...Bb2 22.Rb1 Ba3 23.Re3–+) 22.Be2 (22.Nd4 ab5 23.N2f3 Bf3 24.Nf3 Nc4–/+) 22...Bb2–+ 23.Rc5 b5 24.a4 Ba3 25.Rg5 Bf3 26.Nf3 Be7 27.Re5 Bd6 28.Rg5 Be7 29.Re5 Bd6 30.Rg5 h6 31.Rg4 b4 32.Nd4 Bc5 33.Nf5–/+ g6 34.Nh6 Kg7 35.Nf5 Kf6 36.Ne3 Rd2 37.Rf4 Kg7 38.Nc4 Nc4 39.Bc4 f5 40.h4 a5 41.h5 Bd6 42.Rf3 Rc8 43.Bb3 Rc3 44.Rc3 bc3 45.hg6 Kg6 46.Rc1 Be5 47.g3 Rb2 48.Bc2–/+ Kf6 49.Kf1 f4 50.Kg2 Kg5 51.Kf3 fg3 52.fg3 Ra2 53.Ke4 Bg3 54.Bb3 ½–½. Khrustalev,Alexander (1930) – Lugovoy,Dmitry (2010), Open, Dubna RUS, 2007.

8.Be2 Re8 9.0–0 Bc5 10.Nc3 Bf5 11.Nb5 a6 12.Nbd4 Qd7 13.Nf5 Qf5 14.g3 h6.

8.Be2 Bf5 9.0–0 h6 10.Nc3 Qd7 11.h3 a6 12.Nh4 Bh7 13.Nf3 Bd6 14.Bd3 Bd3.

8.Be2 h6 9.0–0 a6 10.Nc3 Bf5 11.d4 Qd6 12.h3 Qe6 13.Bd3 Bd6 14.Bf5 Qf5.

6.Bb2 d5

7.Bb5 0–0 8.Nf3 Bg4 9.d3 a6 10.Bc6 bc6 11.Nbd2 Rb8 12.Qc1 c5 13.Ne5 Rb6 14.0–0 Bh5 15.e4 de4 16.de4+= Re8 17.Ndc4 Re6 18.Na5 Ne4=+ 19.Nac6 Qd2 20.Ne7 R6e7 21.Nd3 c4 22.Nf4 Bg6 23.Ng6 fg6 24.f3 c3–+ 25.fe4?? Qd4 (25...Qd4 26.Kh1 cb2–+) 0–1. Erbe,Holger (1665) – Meisinger,Peter (1710), DESC, 2000.

7.c4 d4 8.Qc2 0–0 9.Nf3 Bc5 10.Bd3 Re8 11.0–0 Bg4 12.Nd4 Nd4 13.ed4 Bd4 14.Nc3 c6 15.h3 Be6 16.Rab1 Qc7 (16...Qd7 17.Ne4 Bb2 18.Rb2 Ne4 19.Be4=) 17.Ne4 (better is 17.Nb5!? cb5 18.Bd4 bc4 19.Bf6 gf6 20.Bh7 Kg7 21.Be4+/–) 17...Bb2= 18.Rb2 Ne4 19.Be4 h6 20.Bf5 Rad8 21.Be6 Re6 (worse is 21...fe6 22.Rfb1 b6 23.c5=) 22.Qb1 b6 23.Re1 Red6 24.g3 c5 (24...Rd2?? 25.Rd2 Qc8 26.Rd8 Qd8 27.Qd1+–) 25.Re3 Qd7 (25...Rd2?? 26.Rd2 g6 27.Qb2+–) 26.Kg2 Rd2 27.Rd2 Qd2 28.Qf5 Qd7 29.Qc2 Qc6 30.Kh2 Rd4 31.a4 Qd7 32.Re2 Rd1 33.f4 g6 34.g4 Qd4 35.Rf2 Qa1 36.Kg3 (36.Qe4 Qa4 37.f5 gf5 38.gf5 Qd7–+) 36...Rc1 37.Qe4 Qa4 38.Rd2 Qc4 (38...Rc4 39.Rd8 Kg7 40.Qe5 Kh7 41.Qh8) 39.Rd8 Kh7 40.Qe5 (40.Qc4 Rc4 41.Rd7 Rc3 42.Kg2 Kg7 43.Ra7 b5–+) 40...Qc3 41.Kf2 (41.Qc3 Rc3 42.Kf2–+) 41...Rc2 42.Kf1 Qf3 43.Ke1 Qh1 0–1. combijack (1810) – chanakam2000 (1805), gameknot.com, 2011.

7.c4 d4 8.Qc2 0–0 9.Nf3 Bc5 10.Ng5 Ne5 11.Ne4 Ne4 12.Qe4 Re8 13.Qd5 (13.Bd4?? Bd4 14.Nc3 Nc4–+) 13...Qd5 14.cd5 de3 (better is 14...Bf5–/+) 15.de3= Bf5 16.Be2 Nd3 17.Bd3 Bd3 18.Kd2 Be4 19.Nc3 Bd5! (worse is 19...Bg2 20.Rhg1 Bf3 21.Rg3+/–) 20.Nd5 Rad8 21.Ke2 Rd5 22.Rad1 Red8 23.Rd5 Rd5 24.Rc1 Bb6 25.Rc4 f6 26.g3 Rc5 27.Rb4 Rc2 28.Kf3 Kf7 29.a4 a5 30.Rb5 Rc4 31.Bd4 Bd4 (31...Ra4?! 32.Bb6 cb6 33.Rb6–/+) 32.ed4 b6 (32...Ra4?! 33.Rb7 Rd4 34.Rc7 Kg6 35.Ke3–/+; 32...Rd4?! 33.Ra5 b6 34.Ra7–/+) 33.Rd5 Ke6 34.Rd8 Ra4 35.d5 Ke7 36.Rg8 Kf7 37.Rd8 Rc4 38.Rd7 Kg6 39.Ke3 a4 (39...a4 40.Rd8 Rc5–+) 0–1. combijack (1840) – esfahan (1855), gameknot.com, 2009.

7.Nf3 Bg4 8.Be2 0–0 9.0–0 Re8 10.Ne1 Be2 11.Qe2 d4 12.c3 de3=+ 13.fe3 Qd5 14.c4= Qd7 15.d4 Bd8 16.Qd3 Nd4 (16...Nd4 17.ed4 Ng4+–). malaysianisme – supertimchan (2075), net–chess.com, 2004.

5.e3 d5

6.Nc3 Nc6 7.Bf6 Bf6 (< 7...gf6 8.Bb5+=) 8.d4 0–0 9.Nf3 a6 10.Be2 Ne7 11.0–0 c5 12.Qd2 Qd6 13.dc5 Qc5 14.Nd4 Nc6 15.Na4 Qd6 16.Nc3 Nd4 17.ed4 b5 18.Rfe1 Be6 19.g3 Rfc8 20.Rab1 Qa3–+ 21.Rb3 Qa5 22.h4 Rc6 23.Bf3 Rac8 24.Re3 Rc4 25.Rd3 b4 26.Ne2 Bf5 27.Re3 Bc2 28.Ra3 Qa3 29.Ra3 ba3 30.Bd5 a2 31.Bf7 Kf7 32.Qa5 Ba4 33.Qd5 Kf8 34.Qd6 Be7 35.Qf4 Ke8 0–1. themonkey – harrytasker, GameColony.com, 2002.

6.Nc3 Nbd7 7.Bf4 c6 8.Qf3 0–0 9.Nge2 Re8 10.Ra2 Nf8 11.h3 Ng6 12.Bg3=+ Bd6 13.Bd6 Qd6 14.Qg3 Qe7 15.h4 Ne5 16.h5 h6 17.Qf4 Bg4 18.Ng3 Qc7 19.Be2 Rad8 20.Kf1 Be2 21.Nge2 Ne4 22.d3 Nc3 23.Nc3 d4 24.Ne4 Qb6 25.Ke2 c5 26.Rd1 c4 (26...c4 27.g4 Qc6–/+) 0–1. marekt (2445) – mirrorman (2225), ChessWorld.net, 2003.

6.Nc3 Nbd7 7.Bg3 c6 8.d4? (better is 8.Be2+=) 8...Qa5–+ 9.Qd2 Bb4! (9...Ba3 10.Bd6 c5 11.Nd5 Qd2 12.Kd2 Bb4 13.Nb4 Ne4 14.Ke1 Nd6 15.Nd5+/–) 10.Nge2 (10.ab4 Qa1 Pinning (10...Qa1 Deflection)) 10...Ne4 11.ab4 Qa1 12.Qd1 Qd1 13.Nd1 a5 14.ba5 Ra5 15.f3 Ng3 16.Ng3 b5 17.Be2 Ra2 18.Kd2 Nb6 19.Nc3 Ra3 20.Bd3 Be6 21.e4 b4 22.Nce2 Ke7 23.Rb1 Rb8 24.Nh5 g6 25.Nhf4 Nc4 26.Ke1 g5 27.Ne6 Ke6 28.Kf2 Ra2 29.Nc1 Rb2 30.Rb2 Nb2 31.Be2 f5 32.ef5 Kf5 33.g3 h6 34.h3 c5 (34...Na4!? 35.Nd3–+) 35.dc5–/+ Ke5 36.Nb3 Nc4 37.Bd3 Rc8 38.Be2 Rc6 39.Bd3 Nb2 40.Be2 Rc7 41.Ke3 Nc4 42.Kd3 Ra7 43.f4 gf4 44.gf4 Kf4 45.Kd4 Ne3 ½–½. Gleis3 – Flipper, playchess.de, 2004.

6.Nc3 Be6 7.Rb1 0–0 8.Rb7 Nc6 9.Bc7 Qc8 10.Ba6 Bc5 11.Nb5 d4 12.Ra7?? Qe8–+ 13.Nd6 Bd6 14.Ra8 Qa8 15.Bd6 Rd8 16.Bc7 Rd7 17.Qb1? Rc7 18.Qb6 Ra7 19.Bb5 de3 20.Bc6= ed2 21.Kd2 Ra6 22.Ba8+/– Rb6 23.Bf3 Rd6 24.Kc3 Nd5 25.Bd5+– Rd5 26.Nf3 Rc5 27.Kd2 h6 28.Nd4 Rd5 29.Ke3 Ra5 30.Ra1 Re5? 31.Kd3 Rd5? 32.c4 Rd8 33.a4 Bc8 34.a5 Ba6 35.Kc3 Rc8 36.Ra4 Rc5 37.Nb3 Rg5 38.g3 Rf5 39.Ra2 Rf3 40.Kb4 Kf8 41.Nc5 Bc8 42.a6 Rf6 43.a7 Rb6 44.Kc3 (44.Kc3 Rc6 45.a8Q+–) 1–0. marekt – NN, GameColony.com, 2002.

6.c4 0–0 7.Bb2 Be6 8.cd5 Qd5 9.Nf3 Qh5 10.Be2 Qg6 11.Ne5 Qh6 (worse is 11...Qg2 12.Bf3 Qh3 13.Bb7+=) 12.Bf3 Nbd7 13.Nd7 Nd7 14.0–0 (14.Bb7? Rab8 15.Qf3 c6 16.Qc6 Nc5–+) 14...Bd6 15.g3 Rad8 16.d4 c6 17.Nc3 Nf6 18.Qe2 Rfe8 19.Rfe1 Qg6 20.Rad1 Bb3 ½–½. Whitmarsh,Jerry (2025) – Sobirey,Michael (2100), IECG, 2004.

6.c4 Nc6 7.Bb2 Bf5 8.Nf3 0–0 9.Be2 Be4 10.d3 Bf3 11.Bf3 Qd6 12.Qc2 Ne5 13.Be5 Qe5 14.d4 White prepares c5 14...Qd6 15.Nd2 c6 16.c5 Qd7 17.Rb1 Rab8 18.a4 Qe6 19.0–0 Bd8 20.Nb3 Bc7 21.Rfe1 Ne4 22.Be4 de4 23.Nd2 f5 24.g3 b5 25.cb6 ab6 26.Rec1 Rf6 27.Qc4 Qc4 28.Rc4 Bd8 29.Rcb4 Kf7 30.Nc4 Ke7 (better is 30...Ra8+=) 31.Nb6+– Bb6 32.Rb6 Rb6 33.Rb6 Kd8 34.Rb7 Rg6 35.a5 Kc8 36.Rf7 Rg5 37.h4 Rg6 38.Rf5 Kb7 39.Kf1 Ka6 40.Ke2 Re6 41.Kd2 (better is 41.Re5!? Rd6+–) 41...g6 42.Re5 (42.Re5 Rf6 43.Ke2+– (43.Re4?! Rf2 44.Ke1 Rg2+–)) 1–0. combijack (1765) – bull_fighter (1695), gameknot.com, 2010.

6.d4 Nbd7 7.c4 Ne5 8.de5 =.

6.Nf3 0–0 7.Be2 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Be2 d5 7.Nf3).

6.Nf3 Nbd7 7.Bb2 0–0 8.Be2 Nb6 9.0–0 Re8 10.d3 Na4 11.Be5 Bd6 12.d4 Ne4 13.Bd6 Qd6 14.c4 Nac3 15.Nc3 Nc3 16.Qd3 Ne2 17.Qe2 Qa6 18.Nd2 Be6 19.Rac1 Qa3 20.cd5 Bd5 21.Rc7 Qd6 22.Rc3 a6 23.Qh5 Rac8 24.Rfc1 Rc3 25.Rc3 g6 26.Qe2 Qe6 27.f3 f5 28.e4 fe4 29.fe4 Qf6 30.Qd3 Be6 31.Qe3 b5 32.e5 Qf5 33.Ra3 Bd5+= 34.Nf3 Rc8 35.Ra1 b4 36.Rf1 a5 37.Ne1 Qe4 38.Qd2 Rc3 39.h3 Qe3 40.Qe3 Re3 41.Nf3 a4 42.Kf2 Rc3 43.Re1 Rc2 44.Kg3 b3 45.e6 Kf8 46.e7 Ke8 47.Ne5 a3 48.Nd7 Rc6 49.Nc5 b2 50.Rb1 0–1. Fiedler,Peter – Vetter,Udo, O–G7.08 ETC, 2004.

5.e3 d6

6.Bb2 0–0 7.c4 c5 8.Nf3 Nc6 9.Qc2 Bg4 10.Be2 Re8 11.Nc3 Qd7 12.0–0 Rab8 13.Rfe1 a6 14.d4 cd4 15.Nd4 Be2 16.Nde2 Ne5 17.Nd5 h6 18.Rad1 Qg4 Exerts pressure on the isolated pawn 19.Ng3 h5 (better is 19...Nd5!? 20.cd5 Rbc8=) 20.Ne7+/– Re7 21.Rd6 h4 (21...Qc4 22.Qb1+/–) 22.Be5 (better is 22.Rd4!? Qe6 23.Rh4+–) 22...Re5+/– 23.Red1?? (better is 23.h3 Qc8 24.Nf1+/–) 23...hg3–/+ 24.hg3 Rc8 25.R1d4 Qg6 26.Qd1 (26.Qg6!? fg6 27.Kf1–/+) 26...Rec5 27.Rh4 Qg5 28.Rd8 Ne8 29.Rc8 Rc8 30.Qd7 Qc5 31.Qh3 Kf8 32.Qd7= Kg8 33.Qh3 Kf8 34.Qd7= Kg8 35.Qb7 Qc6 36.Qe7 Qf6 37.Qd7 Qe6 38.Qd3 Nf6 39.Qe2 g6 40.Rf4? Kg7 41.Qb2? Rc6 42.g4 Kh6 43.Qb8 Ng4?? 44.Qh8?? Kg5 45.g3 Nh6 46.Rh4 Nf5 47.f4 1–0. combijack (1790) – thejteam (1620), gameknot.com, 2011.

6.Bb2 0–0 7.c4 Be6 8.Nf3 Re8 9.Qc2 c5 10.Nc3 Nc6 11.Be2 h6 12.h4 Qd7 13.0–0–0 d5 14.d3 d4 15.ed4 Nd4 16.Ne4?? (better is 16.Nd4 cd4 17.Ne4–+) 16...Nc2–+ (16...Nc2 17.Kc2 Qa4 18.Kb1 Ne4 19.de4 Bc4 20.Bc4 Qc4–+) 0–1. combijack (1765) – bastinator (1720), gameknot.com, 2011.

6.Bb2 0–0 7.Bd3 Nc6 8.Nf3= Bg4 9.h3 Bh5 10.g4 Bg6=+ 11.Be2 Nd7 12.h4 Nce5 13.h5= Be4 14.Rh3 Bf6 15.h6? Nf3–+ 16.Bf3 Bb2 17.Be4 Nf6?? 18.Bh7? Nh7–+ 19.hg7 Bg7 20.d4 c5 21.Qd3 Ng5 22.Rh1? Nf3 23.Ke2 Ng5 24.Nc3? Qf6 25.f4–/+ c4 26.Qf5 Qf5 27.gf5= Rfe8 28.Rag1 Nh7 29.Nd5+/– Kh8?? 30.f6+– Bf8 31.Rg2 Bg7 32.Rg7 Re3 33.Ne3 (33.Ne3 Re8 34.Rhh7#) 1–0. Kunz,John T – Klug,Don, New York USA, 2008.

6.Bb2 0–0 7.Nf3 Bg4 8.Be2 (8.Nc3 Nc6 9.h3 Be6 (9...Bh5 10.d4 d5 11.Be2 Qd7 12.0–0 Bd6 13.Nb5 Ne4 14.Ne5 Ne5) 10.d4 d5 11.Bd3 h6 12.0–0 Re8 13.Qd2 a6 14.Rae1 Qd6) 8...Nc6 (8...Qd7 A) 9.0–0 Nc6 (9...Bf5 10.d4 Nc6 11.d5 Ne5 12.Nc3 c6 13.h3 h6 14.dc6 Nc6) 10.Nc3 d5 11.d4 Bf5 12.h3 Ne4 13.Ne5 Ne5 14.de5 Rad8; B) 9.d4 d5 (9...Nc6 10.Nc3 d5 11.0–0 Bf5 12.h3 Ne4 13.Ne5 Ne5 14.de5 Rad8; 9...h6 10.0–0 a5 11.Nc3 Nc6 12.h3 Bf5 13.d5 Ne5 14.Nd4 Rfc8; 9...Bf5 10.Nc3 Nc6 11.d5 Ne5 12.0–0 c6 13.Re1 Rac8 14.dc6 Nc6) 10.Nc3 Nc6 11.0–0 Bf5 12.h3 Ne4 13.Ne5 Ne5 14.de5 Rad8; C) 9.h3 Bf5 (9...Bh5 10.Nc3 Nc6 11.0–0 d5 12.d4 Bd6 13.Nb5 a6 14.Nd6 Qd6) 10.Nc3 Nc6 11.0–0 d5 12.d4 Ne4 13.Ne5 Ne5 14.de5 Rfd8; D) 9.Nc3 Nc6 (9...Bf5 10.d4 Nc6 11.0–0 d5 12.h3 Ne4 13.Ne5 Ne5 14.de5 Rad8) 10.0–0 d5 11.d4 Bf5 12.h3 Ne4 13.Ne5 Ne5 14.de5 Rad8) 9.0–0 (9.Nc3 d5 (9...Bf5 10.0–0 Qd7 11.d4 d5 12.h3 Ne4 13.Ne5 Ne5 14.de5 Rad8) 10.0–0 Bf5 11.Nb5 Ne4 12.Nfd4 Bf6 13.f3 Nd4 14.Bd4 Bd4; 9.h3 Bf5 10.Nc3 d5 11.0–0 a6 12.Nh4 Be6 13.Nf3 Qd7 14.Re1 Bd6) 9...Qd7 (9...d5 10.Nc3 Qd7 11.d4 Rad8 12.Ne5 Be2 13.Qe2 Qf5 14.Qd3 Qe6; 9...h6 10.Nc3 d5 11.h3 Bf5 12.Nb5 Ne4 13.d3 Nd6 14.Nfd4 Nd4) 10.Nc3 (10.h3 Bf5 11.Nc3 d5 12.d4 a6 13.Ne5 Qd6 14.Nd3 Rfe8) 10...Rab8 (10...d5 11.h3 Bf5 12.Nh4 Be6 13.d4 h6 14.Bd3 Rfe8) 11.Ng5 (11.d4 h6 12.Qd2 Bf5 13.d5 Ne5 14.Nd4 Ne4) 11...Be2 (11...h6 12.Nf3 d5 13.h3 Bf5 14.Nb5 a6) 12.Qe2 (12.Ne2 Ne5= 13.Ng3 Nc4 14.Bd4 h6) 12...Ne5 (12...Qf5!? 13.Nf3 (13.Qb5 Qc2 14.Rac1 Qg6) 13...Qc2+= 14.d3 Qb3) 13.d4 Ng6 14.Nge4 (14.e4 h6= (14...Nf4 15.Qe3 Qg4=); 14.f4 d5) 14...Rbe8 (14...Ne4 15.Ne4 d5 16.Nd2+=; 14...d5=) 15.Nf6= Bf6 16.Qf3 (16.Nd5 Bd8=) 16...Nh4 17.Qb7?? (better is 17.Qh5=) 17...Qg4?? (better is 17...Rb8 18.Qa7 Rb2–+) 18.h3 Qg6= 19.g3 Rb8–/+ 20.Qc7 Rb2 21.Qd6 Rc2 22.Nd5 Bd8?? 23.Qg6= Ng6 24.a4 Ba5 25.Kg2 Rfc8 26.h4 Kf8 27.Kh3 Re2 28.h5 Ne7 29.Ne7 Ke7 30.Kg2 Rcc2 31.Rab1 Re3–+ 32.Rb7 Kf6 33.Ra7 Be1 34.Ra6–/+ Kg5 35.Ra5?? Kg4 36.Ra7 Bf2 37.Rf2= Rg3 38.Kf1 Rf2 39.Kf2+= Rf3 40.Ke2 Rf5 41.a5 Kh5= 42.a6 Kg6 43.Ke3 Ra5+= 44.Ke4 f5–/+ 45.Kf4 Kf6 46.Ra8 Kg6 47.a7= h5 48.Kg3 Kg5–/+ 49.Kh3? f4 50.Kg2? Kg4–+ 51.Kf2 g5 52.Kg2 Ra2 53.Kf1 Kf3 54.Ke1 g4 55.d5 g3 56.d6 g2 (56...g2 57.Rg8 Ke3–+) 0–1. Neumann,Frank (1635) – Gottwald,Bernhard (1925), RSS5E NoEngine–106, 2010.

6.Bb2 Nc6 7.Nf3 Bg4 8.h3 Bh5 9.Be2 0–0 10.0–0 Qd7 11.Nc3 a6 12.Nh4 Be2 13.Qe2 Rfe8 14.Qf3 Ne5 15.Qf4 (15.Qb7?? Reb8 16.Qa8 Ra8–+) 15...Nh5 16.Qe4 Nf6 17.Qf4 (17.Qb7?? Reb8 18.Qa8 Ra8–+) 17...Nh5 18.Qf5 Bh4 19.Qh5 Be7 20.Nd5 Ng6 21.Bc3 Rab8 22.d4 c6 23.Ne7 Re7 24.Rad1 d5 25.Bb4 Re6 26.c3 (26.Rb1 Qc7=) 26...Rbe8 (26...b6 27.a4+=) 27.Rb1 Rb8 28.Bc5 b5 29.a4 Ne7 30.ab5 Rb5 (30...cb5 31.Ra1=) 31.Rb5 ab5 32.Ra1 Nc8 33.Qf5 g6 34.Qg5 Ne7?? (better is 34...Nd6+=) 35.Ra7+– (35.Ra7 Qe8 36.Re7 (36.Be7?! h6 37.Qh4 g5 38.Bg5 hg5 39.Qg5 Rg6+–) 36...Re7 37.Be7+–) 1–0. Yannick – Loulou, playchess.de, 2005.

6.Bb2 Be6 7.Nf3 Nbd7 8.c4 c5 9.Be2 0–0 10.0–0 Rc8 11.Nc3 a6 12.e4 Ng4 13.Nd5+= Bd5 14.ed5 Nge5 15.Ne5 de5 16.f4 Bd6 17.fe5+= Be5 18.Be5 Ne5 19.d4 cd4 20.Qd4 Qd6 21.Rab1 b5 22.cb5 ab5 23.Rb5 Qa3? 24.Qe5+– Rfe8 25.Qf5 Qe3 26.Qf2 Qe2 27.Qf7 Kh8 28.Rb7 Qe3 29.Kh1 Rg8 30.h3 Rc1?? 31.Qg8!! (31.Qg8 Kg8 32.Rb8 Rc8 33.Rc8 Qe8 34.Re8#) 1–0. Kreuzer,Uwe – Ruehl, Landesliga Mannheim, 1992.

5.e4 0–0

6.Nc3 Nc6 7.Bf6 Bf6 8.Nge2 Re8 9.f4 d5! 10.e5 (10.Nd5 Ba1 Pinning (10...Ba1 Deflection); 10.ed5 Nd4 Decoy) 10...Ne5 11.fe5 Re5 (better is 11...Be5!? 12.Qb1 d4–+) 12.d4= Re3 13.Qd2 Qe7?? (better is 13...Bg5 14.Qd1 Bg4=) 14.Nd5+– Re2 15.Be2 Qd6 16.Nf6 Qf6 17.Bf3 c6 18.0–0 Qg6 (18...Qd6 19.Qb4 Qc7 20.Rab1+–) 19.Rae1 Be6 20.Qd3 (better is 20.Qb4 Qc2 21.Qb7 Rf8 22.Bc6 a5+–) 20...Bf5 (20...Qd3 21.cd3 Rd8 22.Rb1+–) 21.Be4 (21.Be4 Be4 22.Qe4 Qe4 23.Re4+–) 1–0. Yannick – Sparpaket, playchess.de, 2005.

6.Bc4 Ne4 7.Qg4 Nf6 8.Bf6 Bf6 9.c3 d5 10.Qf4 dc4 11.Qc4 Bf5 12.Nf3 Bd3 13.Qb4 Re8 14.Kd1 b6 15.c4 Ba1 0–1. vlad_theimpaled – zrenjanin (1895), gameknot.com, 2010.

5.e4 Nc6

6.Bb2 Ne4 7.Bg7 Rg8 8.Bb2 d5 9.Nf3 Bf6 10.Nc3 Nc3 11.dc3 Qe7 12.Qe2 Ne5 13.Ne5 Be5 14.f3 Rg6 15.0–0–0 Bf4–+ 16.Kb1 Qe2 17.Be2 Rg2 18.Rhe1 Be6 19.c4 0–0–0 20.Bf6 Rd6 21.cd5 Bd5 22.h3 Rh2 23.Be7 Rb6 24.Bb4 Be6 25.Bc4 a5 26.Re4 Bd6 27.Rd6 cd6 28.Be6 fe6 (28...fe6 29.Re6 ab4–+) 0–1. Alves Braz,Jorge – Flor,Remigio, TT–04–0029 B, 2004.

6.Bf6 gf6?! 7.Nf3 =.

6.Bf6 Bf6 7.c3 0–0 8.Bc4 Ne5 9.Qb3 Nc4 10.Qc4 Re8 11.Nf3? d5–+ 12.Qd3 Re4 13.Kd1 Bg4 14.Re1 Qe7 15.Re3 Bg5 16.Qd5 Be3 17.de3 Rd8 18.Qd4 Rdd4 19.cd4 Bf3 20.gf3 Rh4 21.h3 Rh3 22.Ke2 Rh1 23.e4 Qe6 24.Ke3 Qb3 25.Kf4 Rb1 26.Rb1–+ Qb1 27.d5 Qd3 (27...Qd3 28.a4 c6 29.dc6 bc6–+) 0–1. Kientzler,Roland – Mrkvicka,Joseph, corr CiF, 1988.

6.Bf6 Bf6 7.c3 0–0 8.Nf3 Qe7 9.Bd3 d5 10.Qe2 Re8 11.ed5 Qe2 12.Be2= Na5 13.Ra2? Nb3?? 14.d4 Nc1 15.Rd2? Bf5–+ 16.Kd1 Ne2 17.Re2 Re2?? 18.Ke2= Re8 19.Kd2 Be4 20.Re1 Kf8 21.Kd1?? Bb1–+ 0–1. Steve20 – labackna, ChessWorld.net, 2006.

6.Bf6 Bf6 7.c3 d5 8.Qe2 0–0–/+ 9.d3 de4 10.de4 Be6 11.Nf3 Na5 12.Qc2 Bb3 13.Qc1 Qe7 14.Qe3 Rfe8 15.Nbd2 Ba4 16.Be2 Bc2 17.0–0 Be4 18.Bb5 Bc6 19.Qd3 Qc5 20.Bc6–/+ Qc6 21.Nd4 Bd4 22.cd4 Qd5 23.Rfc1 Nc6 24.Nf3 Rad8 25.Rc5?? Qe4 26.Qe4= Re4 27.d5 Nd4 28.Nd4 Rd4 29.Rc7 R4d5=+ 30.Rb7?? Ra5 31.Rab1 Ra3=+ 32.g3 h6 33.Rc1 Ra2 34.Rcc7= Rf8 35.Ra7 ½–½. Lima,Paulo Sergio Lisboa (1790) – Abelha,Mozart Rosa (2070), BRA CEAX op 1st, 2003.

5.e4 d6

6.Bb2 Nc6 7.d3 0–0 8.Nf3 Bg4 9.Nbd2 Ne5 10.h3 Nf3 11.gf3 Bh5 12.Rg1 Qd7 13.c4 Bg6 14.d4 Rfe8 15.a4 Nh5 16.c5 dc5–/+ 17.Rg6 (better is 17.Nb3!? cd4 18.Qd4–/+). gummi57 – hooks, ChessWorld.net, 2005.

6.Bf6 Bf6 7.d4 c5 8.c3 Nc6 9.Nf3 Bg4 10.Bb5? 0–0 11.Bc6 bc6–/+ 12.0–0 cd4 13.cd4 Bf3 14.gf3 Qb6 15.Nd2 Bd4 16.Nc4 Qc5 17.Qe2? Ba1–+ 18.Ra1 d5 19.ed5 cd5 (19...cd5 20.Ne3 d4–+) 0–1. bentengutama (2170) – karpovitch (2120), net–chess.com, 2003.

5.Nf3 0–0

6.Bb2 d5 7.e3 Bf5 8.Be2 Qd6 9.0–0 Ng4 10.Nc3 Nc6 11.Bd3 Bd3 12.cd3 Rfe8 13.Qb3 Nce5 14.Ne5 Qe5 15.f4 Qh5 16.h3 Nf6 17.Nb5 Rec8 18.Be5 c6 19.Nc7 Rab8 20.Na6! ba6 21.Bb8 c5 22.Be5 Qf5 23.Qb7 Re8 24.Qa6 Nd7 25.d4 Ne5 26.de5 Qd7 27.Rfb1 Ra8 28.Rb7 Qd8 29.Ra7 Ra7 30.Qa7 c4 31.Rb1 Bf8 32.Rb8 Qh4 33.Qc5 h5 34.Qf8 Kh7 35.Qf7 Qe1 36.Kh2 Qe2 37.Qf5 g6 38.Qd7 Kh6 39.Rh8# 1–0. GLChess210 – Averno030, computer chess game, 2000.

6.Nc3 Nc6 7.Bg3 d5 8.Nb5 Bd6 9.Nd6 cd6 10.e3 Ne4 11.Qb1 Re8 12.Bd3 f5 13.c3 Ne5 14.Qc2 Bd7 15.0–0 Qa5 16.Be2 Rac8 17.Qb2 Rc7 18.Bf4 Qc5 19.Rfb1 Ng4 20.h3 Ngf2 21.Qb4 b6 22.Qc5 bc5 23.d3 Nc3 24.Kf2 Nb1 25.Rb1 Rc6 26.Rb7 Be6 27.Ra7 h6 28.Bd1 Rb8 29.Ba4 Rb2 30.Kg1 Rcb6 31.Bd7 Bd7 32.Rd7 Re2 33.Rd6 Rd6 34.Bd6 Re3 35.Ne5 Re1 36.Kf2 Rc1 37.a4 Ra1 38.Bc5 Ra4 39.Kf3 g5 40.g3 Ra2 41.h4 Rc2 42.Bd4 gh4 43.gh4 Rc1 44.Bf2 Kg7 45.Bd4 Rd1 46.Ng4 Kf7 47.Nf2 Rf1 48.Kg2 Rb1 49.Nh3 Rb4 50.Bf2 Rg4 51.Kf3 Ke6 52.Nf4 Ke5 53.d4 Kd6 54.Nd3 Rg8 55.Ne5 Rf8 56.Bg3 Ke6 57.Bf4 h5 58.Ng6 Rg8 59.Ne5 Rc8 60.Be3 Ra8 61.Nd3 Rh8 62.Nc5 Kf7 63.Bg5 Re8 64.Bf4 ½–½. patrovo (1865) – glennobrien (1985), gameknot.com, 2014.

6.Nc3 d6 7.Bg3 Nc6 8.e3 a6 9.d4 Bg4 10.Be2 Nh5 11.0–0 Ng3=+ 12.hg3 Bf6 13.Ne4 d5 14.Nf6 Qf6 15.c3 b5 16.Kh2 Qh6 17.Kg1 Rfe8 18.a4 b4 19.cb4 Nb4 20.Ne5 Be2 21.Qe2 (21.Qe2 c5 22.Ng4=+). mic (2120) – glimmung (2315), net–chess.com, 2007.

6.c4 b6 7.g3 Nc6 8.Bb2 Na5 9.Qc2= Ba6 10.d3 d5 11.Nbd2 Re8 12.e3 dc4 13.dc4 Ng4 14.h3 Nh6 15.Rd1+= Bb7 16.Bg2 Bf6 17.Nb3+= Qe7 18.Na5 ba5 19.0–0 Be4 20.Qc1 Rab8 21.Bf6 Qf6 22.Nd4 Nf5 23.Be4 Re4 24.Qc2 Rbe8 25.Nf5+/– Qf5 26.f3 R4e5 27.Qf5 Rf5 28.Kf2 Kf8 29.Rd5 Rd5 30.cd5 Rb8 31.Rc1+– Rb7 32.Rc5 Rb2 33.Ke1 Rb1 34.Kd2 Rb2 35.Kd3 Rb3 36.Kd4 Ra3 37.Rc7 Ra1 38.Ra7 a4 39.Ke5 a3 40.Kd6 g6 41.e4 a2 42.Ra8 Kg7 43.Ke7 f5 44.d6 fe4 45.fe4 Re1 46.Ra2 Re4 47.Kd8 Rd4 (47...Re3+–) 1–0. Ye Rongguang – Bates,Giles, Dortmund, 1980.

6.c4 Nc6 7.Bb2 d5 8.Qc1? (better is 8.e3!?+=) 8...Na5–+ 9.cd5 Nb3 (9...Nd5?! 10.Qc2+=) 10.Qc3 Na1 11.Ba1 Qd5 12.e3 Bf5 13.Bc4 Qd6 14.0–0 Rad8 15.Nd4 Bd7 16.f3 a6 17.Ba2 c5 18.Ne2 Bb5 19.Rf2 Be2 20.Re2 Qd3 (20...b5 21.d4–+) 21.Kf2 (21.Qd3 Rd3 22.Bc4 Rd7–+) 21...Qc3 (21...b5 22.Qd3 Rd3 23.Nc3–+) 22.Nc3 b5 23.a4 Rb8 24.ab5 ab5 25.d4 b4 26.Nd5 Nd5 27.Bd5 Rfd8 28.e4 Bf6 29.Rd2 Bd4 30.Bd4 cd4 31.Rd4 b3 32.Rd1 b2 33.Rb1 Rdc8 0–1. Zhukov,Jury – Gladkov,Kirill, Doroshkevicha Mem, Belorechensk RUS, 2009.

6.c4 Nc6 7.Bg3 d5 8.cd5 Nd5 9.e3 Bf6 10.d4 Bg4 11.Be2 Re8 12.0–0 a6 13.Qd2 Nce7 14.e4+/– Bf3 15.Bf3 Nb6? 16.e5+– Nc4 17.Qc3 Ne5 18.de5 Bg5 19.Bb7 Rb8 20.Ba6 Rb6 21.Bc4 Nf5 22.Qf3 g6 23.Nc3 Rf8 24.Rfd1 Qa8 25.Qa8 Ra8 26.Rd7 1–0. peze – hal1958, ACL–T106 playchess.de, 2003.

6.c4 d6 7.Bb2 c5 8.Nc3 d5 (8...Be6 9.e4=) 9.cd5= Nd5 10.Qb3 Nc3 11.Qc3 f6 (11...Bf6!? 12.Qc2 Bb2 13.Qb2 b6=) 12.e3= Be6? (12...Nc6 13.Bc4 Kh8 14.0–0=) 13.Be2 (better is 13.Ng5! Bd7 14.Bc4 Kh8 15.Nf7 Rf7 16.Bf7+–) 13...Nc6 (13...Qd5 14.d4=) 14.0–0 (14.Ng5 Bd5+=) 14...a6 (14...Bd6 15.Bc4 Qd7 16.Ng5 Bc4 17.Qc4 Kh8 18.Ne4=) 15.d4 (15.Ng5 Bd5 16.Bc4 Kh8=) 15...cd4= 16.Nd4 Nd4 17.ed4 (17.Qd4 Qd4 18.Bd4 Rad8=) 17...b5 (17...Rc8 18.Qe3 Bd5 19.Rac1 Rc1 20.Rc1=) 18.Rfd1 (18.Rfe1 Bd5=) 18...Bd5 ½–½. Goldmund,Heike – Budnar,Milos, FICGS, 2014.

6.c4 d6 7.Bb2 Nc6 8.d4 a6 9.Nc3 Re8 10.e4 Na5 (better is 10...Bf8 11.Bd3 Ne4 12.Ne4 f5+=) 11.d5 (11.Bd3 Bg4=) 11...c6 (11...Ne4 12.Ne4 Bf6–+) 12.g3?? (12.Bd3 Nd7=) 12...Qb6?? (better is 12...Ne4 13.Ne4 Bf6 14.Bf6 Re4 15.Be2 Qf6–+ (15...gf6?! 16.Nd2 Re7 17.0–0+=)) 13.Na4 Qb3 14.Qb3 (better is 14.Nd2!? Qd1 15.Rd1=) 14...Nb3–/+ 15.Bd3 (better is 15.Nb6!? Bg4 16.Be2–/+) 15...Na1 16.Ba1 cd5 17.cd5 b5 (17...Bg4 18.Ke2 Nd5 19.h3–+) 18.Nb2? (18.Nc3 Nd7–+) 18...Ng4 (18...Bd8!? 19.Nd2 Nd5 20.Kd1 Nc3 21.Kc2–+) 19.0–0 (19.h3 Nf6 20.Nd2 Bd8–+) 19...Bf6 (19...f5 20.Nd4–+) 20.h3 Ne5 21.Ne5 Be5 22.Kg2 Bd7 23.f4 Bd4 24.Rc1 a5 25.Rc7 Red8 26.Rc2 b4 27.Rc4 Bc5 28.Rc1 ba3 29.Nc4 f6 30.Rc3 Bb4 31.Rc2 Rdc8 32.Nb6 Rc2 33.Bc2 Ra7 34.Nd7 Rd7 35.Kf2?? Kf7 36.Ke3 Rc7 37.Kd3 h6 38.g4 g6 39.Bd4 Bc5 40.Bc3 Bb6 41.Ba4 g5 42.f5 Rc8 43.Bc6 Rh8 44.Ba4 ½–½. Baer,Cy (1895) – Neumann,Frank (1650), RSS5E easy–34, 2007.

6.c4 Re8 7.d4 =+.

6.c4 Re8 7.e3 Nc6 8.Bb2 d5 9.d4 Bg4 10.Be2 Qd7 11.Nbd2 dc4 12.Bc4 Bd6 13.Be2 a6 14.0–0 b5 15.Qc2 Bf5 16.Qd1 Rab8 17.Nh4 Bg4 18.Bg4= Qg4 19.Qg4 Ng4 20.h3 Nf6 21.Rfc1 Rb6 22.Nhf3 ½–½. Boehnke,Hartmut (1970) – Sobirey,Michael (2060), internet, 2006.

6.d3 Nc6 7.Bb2 b6 8.g3 Bb7 9.Bg2 Ng4 10.0–0 Bf6 11.Nc3 Re8 12.h3 Nge5 13.Rb1 Rb8 14.e3 Na5 15.Ne5 Be5 (worse is 15...Re5 16.Ne4 Re4 17.Bf6 Qf6 18.Be4 Be4 19.de4+/–) 16.Qg4 Bg2 17.Kg2 d5 18.Nb5 Bb2 19.Rb2 c6 20.Nd4 (worse is 20.Na7 Qe7 21.Nc6 Nc6–/+) 20...Qf6 21.Rbb1 Rbd8 22.Nf3 c5 23.c4 dc4 24.dc4 Qe6 25.Qh4? (better is 25.Qe6!? Re6 26.Rfd1+=) 25...Qc4 26.g4 Qe4 27.Rbd1 f6 28.Rd8 Rd8 29.Qg3 Qc6 30.g5 fg5 31.Qg5? Rf8 32.Qg4 Rf6 33.e4 Rg6 34.Ng5 h6 35.h4 hg5 36.hg5 Nc4 37.Qf5 Qe6 38.Qf4 Qe5 39.Qe5 Ne5 40.f4 Nc6 41.Kg3 Nd4 42.Kg4 Re6 43.Re1 g6 44.Re3 Kf7 45.Kg3 Nf5! 46.Kf3 Ne3 47.Ke3 Rd6 48.f5 gf5 49.ef5 c4 50.g6 Kf6 51.a4 c3 52.a5 c2 53.ab6 c1Q 54.Ke4 Qc3 55.g7 Rd4 0–1. Heinrichs,R (1795) – Wittenberg,A (2140), Sparkassen Open, Nettetal GER, 2010.

6.d3 d5 7.e3 c5 8.Be2 Nc6 9.Bb2 Re8 10.0–0 =+ (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Be2 d5 7.Nf3 c5 8.0–0 Nc6 9.Bb2 Re8 10.d3).

6.d3 Re8 7.e3 c5 8.Be2 Nc6 9.Bb2 d5 10.Nbd2 Bf8 11.0–0= Bg4 12.Rb1 Qd7 13.Bf6+= gf6 14.Nd4 Be2 15.Ne2 b6 16.Ng3 Ne7 17.Re1+/– Ng6 18.Qf3 Bg7 19.e4 de4 20.Nde4 Re6? 21.Nf6!!+– (21.Nf6 Bf6 22.Qa8 Nf8 23.Qf3+–) 1–0. oldsage – WoodPusher83, ChessWorld.net, 2006.

6.d4 c5 7.dc5 Bc5 8.e3 Nc6 9.Bb2 d6 10.Bd3=+ Qe7 11.0–0 Bg4 12.h3= Bh5 13.Nc3 Rad8 14.g4 Bg6 15.Bg6 fg6 16.Nd5 Qf7 17.Bf6 gf6 18.e4 f5 19.ef5 ½–½. Benassi,Aspasio – Plock,Joerg, Amical, 1999.

6.d4 d5 7.Nc3 Bf5 8.Qd2 Nc6 9.e3? Ne4–+ 10.Ne4 de4 11.Ng1 Ne5 12.Qa5 c5 13.de5 Qa5 (14.Kd1 Rfd8 15.Bd3 ed3 16.h3 Qc3 17.Rc1 d2 18.Ke2 dc1Q 19.Kf3 Qe5 20.h4 Qd1 21.Ne2 Bd6 22.Rd1 Qe4#) 0–1. Vettenburg – Scarcez, corr Belgium, 1983.

6.d4 d6 7.Bg3 d5 8.e3 =.

6.e3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Nf3).

6.e3 d5 7.c4 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.a3 Be7 7.Nf3).

6.e3 d5 7.Be2 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Be2 d5 7.Nf3).

6.e3 d5 7.Be2 Re8 8.0–0 c5 9.Bb2 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Be2 d5 7.Nf3 c5 8.0–0 Nc6 9.Bb2 Re8).

6.h4 d5 7.h5 h6 8.Nd4 c5 9.Bf6? Bf6–+ 10.Nf3 Ba1 11.c3 Bf5 12.Ne5 Qb6 13.d3 Qf6 14.Nf3 Bc3 15.Nc3 Qc3 16.Nd2 Re8 17.e3 Qa3 18.Qf3 Nc6 19.Qf5 Qc1 20.Ke2 Nd4 0–1. wee harv – Alissa, ChessWorld.net, 2005.

5.Nf3 c5

6.c4 0–0 7.Nc3 Nc6 (7...d6 8.Bf4 Nh5 9.Be3 Nc6 10.Rb1+=; 7...Re8 8.e4 Ne4 9.Ne4 Bf6 10.Nf6+=; 7...b6 8.e4 Bb7 9.Bd3 Nh5 10.Nd5=) 8.Bg3 Re8 9.Qb3 d6 10.d3 +=.

6.c4 Nc6 7.Bb2 0–0 8.Nc3 d5 9.cd5 Nd5 10.Nd5 +=.

6.c4 Nc6 7.Bb2 0–0 8.e3 (--> 5.e3 c5 6.c4 Nc6 7.Bb2 0–0 8.Nf3).

6.c4 Nc6 7.Bb2 Qb6 8.Nc3 Ne5 9.Ne5 Qb2 10.g3 =.

6.c4 Nc6 7.Bb2 d6 8.d4 cd4 9.Nd4 0–0 10.e3 =.

6.c4 Nc6 7.Bf6 Bf6 8.Nc3 0–0 9.e3 Re8 10.Be2 +=.

6.c4 Nc6 7.Bf6 Bf6 8.Nc3 Bc3 9.dc3 d6 10.e3 0–0 11.Be2 Be6 12.0–0 Qe7 13.Nd2 Rae8 14.Bf3 Ne5 Attacks the isolani on c4 15.Bd5 f5 (15...b6 16.Rb1+=) 16.g3 (16.Qa4 Bd5 17.cd5 f4+=) 16...h6 (16...Qf7 17.Qb3+=) 17.Qh5 Ng4 (17...b6 18.Rfd1+=) 18.a4 (18.Rfd1 Nf6 19.Qf3 Bd5 20.cd5 Ne4+=) 18...Qf6 (18...Nf6 19.Qf3 Bd5 20.cd5–/+) 19.Rac1 (19.Bb7 Bf7 20.Qh3 Qc3=) 19...b6+= 20.Qh3 Kh8 21.Qg2 g5 Black prepares f4 22.a5 f4 (22...ba5 23.h3 Ne5 24.Ra1=) 23.ab6= ab6 24.h3 Ne5 (worse is 24...fe3 25.fe3 Qe5 26.hg4 Qe3 27.Kh2 Bd5 28.Qd5 Rf2 29.Rf2 Qf2 30.Kh3+–) 25.Rb1 f3 26.Qh2 Bd5 27.cd5 Qg6 28.e4 (28.Rb6 Qd3 29.Nb3 Rb8 (29...Qd5?! 30.Na1–/+) 30.Rb8 Rb8–/+) 28...Ra8 29.g4 (worse is 29.Rb6 Ra2 30.g4 Re8–/+) 29...Ra2 30.Rfd1 Rb8 31.Qg3 Qf6 32.Nf1 (32.c4 Qg6=) 32...b5 (32...Ra3 33.Rdc1+=) 33.Ne3 (33.Rd2!? Ra4 34.Rdb2+=) 33...Ra4–/+ Black plans b4 34.Rd2 Re4 35.Ra2 b4 36.cb4 cb4 37.Nf5 (37.Ra6 Rd4–/+) 37...h5 38.Ra6 h4 (worse is 38...hg4 39.Nd6 Rf4 40.Rba1+=) 39.Qh2 Nc4 40.Rd6 (40.Kh1 b3 41.Ra4 Nd2 42.Re4 A) 42...Nb1 43.Re6 (43.Nd6? Nd2 44.Nf7 Kg7–+) 43...Nd2 44.Rf6=; B) 42...Ne4–+) 40...Nd6 41.Qd6 (41.Nd6 Rf4 42.Nf5 b3–+) 41...Qd6 42.Nd6 Rd4 (42...Rf4 43.Nf5–+) 43.Nf7 Kg7 44.Ng5 Rd3 (44...Rd5?! 45.Nf3 Ra5 46.Nd4–/+) 45.Ne6 (45.Kh1 b3 (45...Rd5?! 46.Nf3 b3 47.Nh4–/+) 46.Ne6 Kf7–+) 45...Kf7 46.Ng5 Ke7 47.Ne6 Kd6 0–1. forsetinn (2370) – trickyknight (2445), gameknot.com, 2014.

6.c4 Nc6 7.Bf6 Bf6 8.Nc3 Bc3 9.dc3 d6 10.e3 Qf6 11.Rc1 0–0 12.Bd3 Re8 13.Qc2 g6 14.Be4 Rb8 15.0–0 Be6 16.Qd3 Bg4 17.Rfd1 Rbd8 18.Bd5 (18.Qb1 Rd7=) 18...Bf3 19.gf3 Ne5 20.Qe2 Qh4 21.Qf1 Kg7 22.f4 Nc6 23.Rb1 Na5 24.Qd3 (24.Bb7? Nb7 25.Kh1 Qg4–+) 24...b6 25.Rf1 Rc8 26.Rbd1 Nc6 27.Bf3 Red8 28.Kg2 Ne7 29.a4 a5 (29...Rd7!?=) 30.Rd2 Rb8 31.Rb1 Nf5 32.Rdb2 Qe7 33.Kg1 Qc7 34.Rb5 Nh4 35.Bd5 Nf5 36.Qd2 Re8 37.Qb2 Ne7 38.Bg2 Red8? (better is 38...Qd7!?+=) 39.Rb6+– Qb6 40.Qb6 Rb6 41.Rb6 d5 42.cd5 Nd5 43.Bd5 Rd5 44.Rb5 Rd1 45.Kg2 Ra1 46.Ra5 c4 47.Kf3 Ra3 48.Ke4 Rc3 49.Rc5 Rc2 50.Kd4 Rf2 51.h4 Ra2 52.Rc4 Kf6 53.e4 Ra1 54.Kc5 Ke7 55.Kb5 Kd7 56.e5 (56.a5 Rb1 57.Rb4 Ra1+–) 56...Rb1 57.Rb4 Ra1 58.Kb6 Kc8 59.a5 Kb8 60.a6 Ka8 61.Rd4 Rb1 62.Kc5 Ka7 (62...Rc1 63.Kd6+–) 63.Rd7 Ka6 64.Rf7 Rc1 65.Kd6 Rd1 66.Ke7 1–0. forsetinn (2435) – garcia2102 (2005), gameknot.com, 2015.

6.c4 Nc6 7.Bf6 gf6 8.Nc3+= d6 9.Nd5 Ne5 10.e3 +=.

6.c4 Nc6 7.Bg3 0–0 (7...Nh5 8.Nc3 Ng3 9.hg3 Bf6 10.Qc2+=; 7...d6 8.Nc3 0–0 9.Rb1 Re8 10.e3=; 7...Ne4 8.Qc2 d5 9.cd5 Qd5 10.Nc3+=) 8.Nc3 Re8 9.Qb3 d6 10.e3 +=.

6.c4 d6 A) 7.Bf4 0–0 (7...Nc6 8.Nc3 Nh5 9.Be3 0–0 10.Rb1+=; 7...Nh5 8.Be3 0–0 9.Nc3 Nc6 10.Rb1+=; 7...d5 8.Nc3 0–0 9.e3 Nc6 10.cd5=) 8.Nc3 Nh5 9.Be3 Nc6 10.Rb1+=; B) 7.Bc3 Nc6 (7...Be6 8.Qb3 b6 9.e3 0–0 10.Be2=; 7...Nbd7 8.e3 0–0 9.Be2 d5 10.0–0+=; 7...0–0 8.e3 d5 9.d4 Be6 10.Ng5+=) 8.d4 Ne4 9.e3 Bf6 10.Be2+=; C) 7.Bb2 0–0 (7...Bf5 8.Qb3 Nbd7 9.d3 0–0 10.Nbd2=; 7...Nc6 8.d4 cd4 9.Nd4 0–0 10.e3=; 7...Be6 8.Qb3 Nbd7 9.Ng5 Qb6 10.Qb6+=) 8.Nc3 Re8 9.e3 Nc6 10.d4+=.

6.e3 Nc6 7.Bb2 d5 8.c4 d4 9.Qc2 0–0 10.Ng5 h6 11.h4 g6 (11...hg5?! 12.hg5 Re8 13.gf6 Bf6 14.Be2=) 12.h5? (better is 12.Nf3+=) 12...hg5–+ 13.hg6 Ne5 14.gf7 Rf7 15.ed4 cd4 16.d3? (16.Be2 d3 17.Qb3 Bd6–+ (17...de2?! 18.Be5 Bc5 19.Qb2–+)) 16...Bf5 (better is 16...Nfg4 17.f3 Ne3 18.Qb3–+) 17.Nd2 Rc8 18.Qb3 Qd7 19.Be2 Kg7 20.Rc1 Qe6 21.Kd1 Bc5 22.Nf3 Nf3 23.Bf3 Re7 24.Kd2 Qb6 25.Qb6 Bb6 (25...ab6?! 26.Rce1 Rce8 27.Re7 Re7 28.Be2–+) 26.Rcd1 (26.c5 Ba5 27.Kd1 Bd3 28.Bd4 Rd8 29.Bf6 Kf6–+) 26...Rce8 (26...g4!? 27.Bb7 Rb7 28.Kc1–+) 27.g3 (27.Rdf1–+) 27...g4 28.Bd5 Nd5 29.cd5 Rc8 (better is 29...Re2 30.Kc1–+) 30.Rh5 Ba5 0–1. combijack (1765) – saizo (1870), gameknot.com, 2009.

5.Nf3 Nc6

6.Bb2 d5 7.d4 Bg4 8.Ne5 Bf5 9.Nc6 bc6 10.h3 Rb8 11.Ra2 c5 12.e3 (12.dc5 Bc5 13.Nd2 Qe7=+) 12...c4 13.Nc3 0–0 14.Be2 Qd6 15.h4? (Better is 15.Qd2–/+) 15...Rb2!–+ 16.Rb2 Qa3 17.Nd5 Nd5 18.Rb5 (18.Rb1 Bb4 19.Kf1 Nc3–+) 18...Nc3 (19.Rf5 Nd1 20.Bd1 Qb4 21.Ke2 a5–+) 0–1. PoPer – dph, Live Game Caissa's Web, 2004.

6.Bb2 d5 7.e3 0–0 8.c4 Bg4 9.Qc2 a6 10.Ng5 d4 11.h4 Qd7 12.Be2 (better is 12.Bd3!? h6 13.f3+=) 12...Be2–+ 13.Ke2 Rad8 14.Kf1 Bc5 15.Rh3 Ne5 Black prepares d3 16.f4 Neg4 17.e4 h6 18.e5 d3 (worse is 18...hg5 19.ef6 d3 20.Qd1–+) 19.Qc3?? (19.Qb3 hg5 20.ef6 Nh2 21.Ke1 Rfe8 22.Be5 Re5 23.Kd1 Qg4 24.Kc1 Qf4 25.Rd3 Rd3 26.Qd3 Qf6 27.Nc3 gh4 28.Kc2–+) 19...Nh5 (worse is 19...hg5 20.Qd3 Qd3 21.Rd3 Rd3 22.Ke2–+) 20.Ne4 Bd4 (better is 20...Nh2! 21.Ke1 Qc6 22.Rd3 Qe4 23.Re3 Be3 24.Qe3 Qc4–+) 21.Qd4 Qd4 22.Bd4 Rd4 23.Nbc3 Nf4 (23...Rc4?! 24.g3–+) 24.Rg3 Ne5 25.Re1 (25.c5 Nc4 26.Ra2 Ne2 27.Rd3 Rd3 28.Ke2 Rfd8–+) 25...Rc4 (better is 25...Nc4 26.Rg4 f5 27.Rf4 fe4 28.Rf8 Kf8 29.Kf2 Na3 30.Re4–+) 26.Nf6 Kh8 27.Re5 gf6 28.Rf5 Rg8 29.Rg8 Kg8 30.Rf6? Kg7 31.Rf5 Rd4 32.g3 Ne6 33.Kf2 c5 34.Ke3 c4 35.a4 Rd6 36.g4 b6 0–1. combijack (1775) – wallaby66 (1780), gameknot.com, 2010.

6.Bb2 d5 7.e3 0–0 8.Be2 Bf5 9.0–0 h6 10.d3 b5 11.c4 bc4 12.dc4 dc4 13.Bc4 Rb8 14.Qe2 Na5 15.Bc3?? (better is 15.Rd1 Bd6 16.Bd4=) 15...Nc4–+ 16.Qc4 Bd3 17.Qa4?? (17.Qd4 Bf1 18.Kf1–+) 17...Bf1 18.Kf1 (18.Qa7 Be2 19.Qd4 Bf3 20.gf3 Rb3–+) 18...Rb1! 19.Rb1 Qd3 (19...Qd3 20.Kg1 Qb1 21.Be1 Rd8 22.Qa7 Rd1 23.Qa8 Kh7–+) 0–1. combijack (1780) – krishna82 (1945), gameknot.com, 2010.

6.Bb2 d5 7.e3 Bg4 8.Be2 h6 9.c4 0–0 10.Qc2 d4 11.Nd4 Nd4 12.Bd4 Be2 13.Ke2 c5 14.Bb2 Bd6 15.Nc3 Qd7 16.f3 a6 17.Ne4 Ne8 (17...Ne4!? 18.Qe4 b5=) 18.g4 Rd8 19.h4 f5 20.gf5 Qf5 21.Raf1 Be5 22.Rhg1 Nd6 23.Be5 Qe5 24.Rg4 Ne4 25.Re4 (worse is 25.Qe4 Qh2 26.Rf2 Rd2 27.Kd2 Qf2 28.Kc3 Rf3 29.Qe8 Rf8 30.Qe6 Kh8–+) 25...Qf5 26.Qc3 Qf6 (26...Qd7!?+=) 27.Qe5 Qd6 28.Qd6 Rd6 29.d4 cd4 30.ed4 Rb6 31.d5 Rb2 32.Ke3 Rb3 33.Kd4 Ra3 34.f4 b6 35.d6 (better is 35.Re6!? Rb3 36.d6+/–) 35...Rd8 36.Re6 Ra4 37.Kd5 Ra3 38.Kc6 Rd3 39.Kc7 Kf7 1–0. combijack (1710) – bladerunner7 (1755), gameknot.com, 2010.

6.Bc3 0–0 7.e3 d5 8.Bb5 Bg4 9.0–0 Ne4 10.h3 Bh5 11.d3 Nc3 12.Nc3 Ne5 (12...Nb8!?=+) 13.g4= Nf3 14.Qf3 Bg6 (14...a6 15.Ba4 c6 16.gh5+=) 15.Nd5 c6 (15...Bd6 16.Nf4 c6 17.Bc4+=) 16.Ne7+/– Qe7 17.Bc4 b5 18.Bb3 c5 19.Bd5+/– Rad8 20.e4 c4 21.d4 Rd5+= 22.ed5 Be4? 23.Rfe1+– Bf3 24.Re7 Bd5 25.Ra7 Rb8 26.Re1 b4 27.ab4 Kf8 28.Re5 Be6 29.d5 Bc8 30.Ree7 Rb4 31.Rf7 Ke8 32.Rae7 Kd8 33.d6 1–0. Wall,Bill – Monte, Internet, 2002.

6.d4 Ne5 7.de5 Ne4 8.Nbd2 d5 9.ed6 Nd2 10.de7 Nf3 11.gf3 Qe7 12.Qd4 f6 13.Rg1 0–0 14.Rg3 Bf5 15.Rb1 Rfd8 16.Qc3 b6 17.e4 Rd7 18.Bc4 Be6 19.Be6 Qe6 20.Qb3 Qb3 21.cb3 Rad8 22.b4 Rd3 23.f4 R8d4 24.Rd3 Rd3 25.Rc1 Ra3 26.Rc7 Rf3 27.f5 Rh3 28.Ra7 Rh2? (Better is 28...Rb3!?+=) ½–½. Seckler,Siggi – Staats,Carsten, RSS5D easy–1, 2003.

6.Bf6 Bf6 7.d4 0–0 8.e3 Qe7 9.Bb5 a6 10.Bc6 dc6=+ 11.0–0 c5 12.Re1 Bg4 13.c3 Bf3–/+ 14.Qf3 cd4 15.Qb7 dc3 16.Qc6 c2!–+ 17.Nc3? Qe6 (17...Qe6 18.Qe6 fe6–+) 0–1. S – chem1st, ChessWorld.net, 2005.

6.Bb2 0–0

7.c4 d6 8.e3 b6 9.Qc2 h6 10.h4 Nh5 11.Be2 g6 12.Nc3 Ne5 (better is 12...Bf6!?=) 13.Ne5+/– de5 14.Bh5 gh5 15.Qe4 Rb8 16.Qe5 Bh4?? (better is 16...Bf6 17.Qh5 Bg7+–) 17.Ne4 f6 18.Qh5 (18.Qh5 Bf2 19.Kf2+–) 1–0. combijack (1735) – neigemahn, gameknot.com, 2010.

7.e3 Ne4 8.c4 Bf6 9.d4 d6 10.Bd3 Re8 11.Qc2 Bf5 12.0–0 Qd7? (better is 12...Bg6!?+=) 13.Nc3+– d5 (13...Qe7 14.Nd5 Qd8 15.Nf6 Qf6 16.d5+–) 14.Nd5 Nd6 15.Nf6 gf6 16.Bf5 Nf5 17.Rad1 Nd6 18.Rfe1 Qf5 19.Qf5 Nf5 20.Bc3 Re4 21.c5 h6 22.Nd2 Rg4 23.h3 Rg6 24.Kh2 Kh7 25.e4?? (better is 25.Nf3+–) 25...Nfe7? (better is 25...Nfd4 26.Bd4 Nd4+/–) 26.f4 1–0. combijack (1815) – cyprinus (1770), gameknot.com, 2011.

7.e3 Ne4 8.d3 Bf6 9.Qc1 Ng5 10.Be2 d6 11.0–0 Nf3 12.Bf3 Ne5 13.Be2 Be6 14.Nd2 c6 15.Nf3 Qc7 16.Ne5 Be5 17.f4 Bb2 18.Qb2 d5 19.f5 Bd7 20.f6 gf6 21.Qf6 Be6 22.Rf3 Bg4 23.Rg3 Qg3 24.hg3 Be2 25.Kf2 Bh5 26.Rb1 Bg6 27.Rb7 Rfc8 28.e4 de4 29.de4 c5 30.e5 Re8 31.Rc7 Re6 32.Qf4 Rf8 33.Ra7 Bc2 34.Rc7 f6 35.Qg4 1–0. phildo (1815) – floconnoir (1725), gameknot.com, 2013.

7.e3 d5

8.c4 Bf5 9.cd5 Nd5 10.Nc3 Nc3 11.Bc3 Bd3 12.Bd3 Qd3 13.Qb1 Qa6 Attacks the isolani on a3 14.a4 Rab8 (14...Nd8 15.d3=) 15.Qb5+= Qb6 16.0–0 a6 (16...Rfd8!?+=) 17.Qb6+/– cb6 18.Rab1 Bd8 19.Ne5 Ne5 20.Be5 Rc8 21.Rfc1 Rc1 22.Rc1 f6 23.Bd4 Re8 24.Rc8 Kf7 25.Rb8 Kg6? (better is 25...Bc7 26.Rb7 Re7+–) 26.Bb6! (26.Rb7?! Re6+–) 1–0. forsetinn (2075) – gablueskies (1770), gameknot.com, 2014.

8.c4 Bg4 9.cd5+= Nd5 10.Be2 Bf6 11.d4 Qe7 12.0–0 Rad8 13.Nbd2 Bf5 14.Rc1 Bg6 15.Re1 Nb6 16.Bb5 Rd6 17.a4 a6 18.Be2 Nb4? (better is 18...Re6!?=) 19.a5+/– N6d5 20.Ba3 Re6 (20...Rc6 21.Bc4 Rc4 22.Rc4 b5 23.ab6 a5 24.bc7 Qd7+–) 21.Qb3 b5 22.Bf1 c5 (better is 22...Rd8+–) 23.Rc5 Qc5 24.dc5 Bc2 25.Qb4! Nb4 26.Bb4 Rd8 27.g3 Bb2 28.Ng5 Re7 29.Bg2 Rc7 30.Nh3 h6 31.Nf4 1–0. forsetinn (2460) – adalbert (2130), gameknot.com, 2016.

8.d4 Bg4 9.h3 Be6 10.Nbd2 h6 11.c4 (11.Bd3 Qd7=) 11...dc4 12.Bc4 Bc4 13.Nc4 Nh7 (13...Qd5!? 14.Rc1 Na5=) 14.0–0 (14.e4 Ng5 15.d5+/–) 14...Ng5? (14...Qd5 15.Qc2 Ng5 16.Ng5 Bg5 17.f4+=) 15.Nfe5 (better is 15.d5!? b5 16.Nfe5 Ne5 17.Ne5+/–) 15...Ne5 16.Ne5 Bd6 (16...Qd5 17.Qc2+=) 17.Nc4 (17.Qc2 Ne6+/–) 17...b5 18.Nd6 Qd6 19.Qb3 a6 20.Rac1 Ne4 (20...Rac8 21.Bc3 Qg6 22.Bb4 Nf3 23.Kh1+=) 21.Rc2 Rac8 22.Rfc1 c5 23.dc5 Nc5?? (better is 23...Rc5 24.Bg7 Kg7 25.Rc5 Nc5 26.Qc3 f6 27.Qc5 Qc5 28.Rc5 Rd8+=) 24.Qb4+– Rfd8 25.Rc5 Rc5 26.Qc5 (26.Rc5 Qd1 27.Kh2 Qd2+–) 26...Qd2 (26...Qc5 27.Rc5 Rd1 28.Kh2 Rd2+–) 27.Rc2 Qd1 28.Kh2 Rd5 (28...Qd7 29.Qb6 Qd6 30.Qd6 Rd6 31.Bd4+–) 29.Qc3 f6 30.Rc1 (better is 30.Qc8 Rd8 31.Qe6 Kh8 32.Rc8 Rc8 33.Qc8 Kh7 34.Qa6+–) 30...Qe2 (30...Qd2+–) 31.Qc8 Kf7 (31...Kh7 32.Bf6 Qf2 33.Bg7 Kg7 34.Rc7 Qf7 35.Rf7 Kf7 36.Qb7 Ke6 37.Qa6 Rd6 38.Qb5 Kf6+–) 32.Rc7 Kg6 33.Qe8 Kf5 34.g4 Kg5 (34...Qg4 35.hg4 Kg4 36.Qe4 Kh5 37.Rg7 Rg5 38.Qf3 Rg4 39.Qg4) 35.Qh5 1–0. phildo (1900) – libelle_3 (1860), gameknot.com, 2014.

8.Be2 Bf5 9.0–0 Re8 10.c4 Qd7 11.d4 dc4 12.Bc4 Bd6 13.Nbd2 Ng4 14.h3 Nf6 15.Rc1 Na5 16.Be2 Ne4 17.Ne4 Be4 18.Nd2 Bg6 19.Bc3 Nc6 20.Qb3 Rab8 21.Rfd1 Qe7 22.Bb2 Qg5 23.d5 Ne5? 24.f4+– (24.f4 Qe7 25.Be5 Be5 26.fe5 Qe5 27.Rc3+–) 1–0. AndyAndyO – brain boardonly, ChessWorld.net, 2005.

8.Be2 Bf5 9.c4 Re8 10.0–0 h6 11.Nc3 dc4 12.Bc4 a6 13.d4 Ne4 14.Rc1 Nd6 15.Ba2 Na5 16.Nd5 c6 17.Nf4 Be4 18.Nd2 Bf5 19.Qh5 Qd7? (better is 19...Bh7+/–) 20.e4?? (20.g4 Bg4 21.Qa5 Bf5+–) 20...Be4?? (better is 20...Bg5 21.ef5 Bf4+=) 21.Qa5 (better is 21.Ne4!? Qf5 22.Qf5 Nf5 23.Rfe1+–) 21...Bg5+/– 22.Nh3 (better is 22.Nh5+/–) 22...Bg2= 23.Kg2 Qg4 24.Kh1 Bd2 25.Qd2 Qf3 26.Kg1 Qg4 27.Kh1 Qf3 28.Kg1 Qg4 29.Kh1 Qf3 30.Kg1 ½–½. combijack (1800) – dr_rieux, gameknot.com, 2011.

8.g3 Be6 9.Bg2 Qd7 10.0–0 Rfe8 11.d3 Bh3 12.Bh3 Qh3 13.Bf6 Bf6 14.Ra2 Ne7 15.Ne1 c5–/+ 16.c4 Rad8 17.Qf3 dc4 18.dc4 Qe6 19.Rc2 Nc6 20.Rd2 Qc4–+ 21.Ng2 Rd2 22.Nd2 Qc2 23.Ne4?? Qe4 24.Qh5 Ne5 (24...Ne5 25.Qd1 Rd8–+) 0–1. aliwood – marekt, internet, 2005.

8.c4 Be6

9.Qc2 Qd7 10.Nc3 dc4 11.Ne4 Ne4 12.Qe4 b5 13.Be2 Rad8 14.Bc3 Rfe8 15.0–0 h6 16.Bd1? (better is 16.Qb1 a6 17.Rc1–+) 16...Bf5 17.Qf4 g5 18.Ng5 hg5 (18...Bg5?! 19.Qg3 Bd3 20.Re1–+) 19.Qg3 f6 20.f4 Kf7?? (better is 20...Bd3 21.Rf2 Qd6–+) 21.fg5–/+ Rg8 22.Qf4? (22.Bh5 Bg6 23.gf6 A) 23...Bh5?? 24.fe7 Ke7 25.Qh4 Kd6 26.Rf6 (26.Qh5?! Rdf8+–) 26...Kc5 27.Qh5 Qd5 28.Rf5 Rg2 29.Kh1 Rg5 30.Rd5 Rgd5 31.Qg6+–; B) 23...Bf8+=) 22...Rg5 23.h4 Bd6 24.Qf3 Rg2 25.Kg2 Rg8 26.Kh1?? (better is 26.Kf2–/+) 26...Be4!! 27.Bf6 (27.Qe4 Qh3#) 27...Bf3 (27...Qh3!#) 28.Rf3–+ Ke8 29.Be2 Be5 30.Rg1 Rg1 31.Kg1 Bf6 (31...Bf6 32.Rf2 Ke7–+) 0–1. combijack (1765) – medmax (1630), gameknot.com, 2010.

9.Qc2 Qd7 10.cd5 Bd5 11.Ng5 g6 12.h4 h6 13.Nf7?? (better is 13.e4 Be6 14.Ne6 Qe6 15.h5=) 13...Bf7 (13...Rf7?! 14.Qg6 Rg7 15.Qh6–/+) 14.Bd3 Kg7 15.Nc3 Ne5 16.Be2 Bc4?? (16...Qc6 17.e4–+) 17.Ne4?? (better is 17.d4 Be2 18.de5=) 17...Nd3 18.Bd3 Bd3 19.Bf6 Bf6 20.Nf6 Rf6 (20...Bc2 21.Nd7 Rfe8 22.Nc5+/–; 20...Kf6?! 21.Qb2 Kf7 22.Qb7–+) 21.Qc3 c6 22.g4 Be4 (22...Qd5 23.Rh3 Qg2 24.0–0–0 Qg4 25.Rg3–+) 23.Rg1 Qd3 24.f4 Qc3 25.dc3 Rff8 26.Ke2 Rad8 27.Rad1 b5 28.Rd4 Rd4 29.cd4 a5 30.Rc1 Rd8 (better is 30...b4!? 31.Kd2–+) 31.Rc5 Rd5 32.Rc6 Rd7 33.Rc5 Rb7 Black plans b4 34.Kd2 b4 35.ab4 ab4 (35...Rb4?! 36.Ra5 Rb2 37.Kc3 Rc2 38.Kb4=) 36.Kc1 b3 37.Kb2 Bf3 38.g5 h5 39.f5 Be4 40.f6 Kf7 41.Re5 Bc2 42.d5 Rb6 43.Re7 Kf8 44.e4 Rd6 45.Rb7 Be4 46.Rb3 (better is 46.Rb8 Kf7 47.Rb7 Kg8 48.Rb8 Kf7 49.Rb7 Kf8 50.Rb8 Kf7=) 46...Bd5–/+ (46...Rd5?! 47.Rb8 Kf7 48.Rb7 Kg8 49.Rb8 Kf7 50.Rb7 Kf8 51.Rb8 Kf7=) 47.Rb4 Be6 48.Kc3 Rc6 49.Kd4 Rc8 50.Ke5 Re8 51.Kd6 Bg4 52.Rb7 Rd8 53.Ke5 Re8 54.Kd5?? Bf3–+ (54...Bf3 55.Kd6 Bb7–+) 0–1. combijack (1725) – krakkck, gameknot.com, 2010.

9.Qc2 Qd7 10.cd5 Nd5 11.Nc3 Nc3 12.Bc3 f6 13.Be2 Bd6 14.Qe4 Bf5 15.Bc4 Kh8 16.Qh4 Rad8 17.h3 Ne5 18.Ne5 fe5 19.e4 Be7 20.Qh5 Be4 21.Qe5 Bf6 22.Qa5 b6 23.Qb4 Bg2 24.Rg1 Bf3 25.Rg3 c5 26.Qb3 Bc6 (better is 26...Rde8 27.Kf1 Bd4 28.Bd4 Qd4 29.Rf3 Qa1 30.Kg2–+) 27.0–0–0? (27.Be6 Qe7 28.0–0–0–+) 27...Ba4 28.Qb2 Bd1 29.Kd1 Bd4 30.Kc1 Rf2 (30...Bf2?? 31.Bg7 Qg7 32.Qg7) 31.Rg4 (31.Bd4 cd4 32.Qb5 Qc7–+) 31...Bc3 32.Qc3 Qd2 33.Qd2 Rfd2 34.Bb5 Rh2 35.h4 Rd4 36.Rg3 Rhh4 37.Re3 Rd8 38.Kc2 c4 39.a4 Rh2 40.Kc1 h5 0–1. combijack (1745) – zugswag (1920), gameknot.com, 2010.

9.Qc2 Re8 10.Ng5 Bc8 11.Bf6? Bf6–+ 12.Qh7 Kf8 13.Nf7 Kf7 14.Qh5 g6 15.Qd5 Qd5 16.cd5 Ba1 17.dc6 bc6. Bernardo – Avy, email SOK–99–E009A, 1999.

9.cd5 Qd5 10.Nc3 Qa5 11.Be2 Rfe8 12.0–0 Ne5 13.Ne5 Qe5 14.d4 Qg5 15.Bc1 Qh4 16.Bf3 c6 17.g3 Qg5 18.e4 Qg6 19.d5 (19.Ne2!? Bg4 20.Bg4 Qg4 21.f3=) 19...cd5 20.Nd5 Ne4 21.Ne7 Re7 22.Be4 (22.Re1!? Bc4 23.Bf4=+) 22...Qe4–+ 23.Re1 Qc6 24.Be3 Bh3 25.Ba7?? (Better is 25.f3–+) 25...Qg2 0–1. maxim – pleskot, Live Game Caissa's Web, 2004.

9.cd5 Bd5 10.Nc3 Be6 11.Qc2 Na5 12.Ng5 Nb3 (12...Bb3!? 13.Qf5 h6+=) 13.Rb1+= (worse is 13.Ne6 Na1 14.Ba1 fe6–/+) 13...Nc5 14.Ba1 Bg4 15.d4 g6?? (better is 15...h6 16.Nf3 Ncd7+=) 16.dc5+– 1–0. forsetinn (2400) – postalpeet (1945), gameknot.com, 2015.

9.Ng5 dc4 10.Ne6 fe6 11.Bc4 Qd6 12.Nc3 Kh8 13.Nb5 Qd7 14.0–0 a6 15.Nd4 The isolani on e6 becomes a target 15...Nd4 16.Bd4 b5 17.Bb3 c5 18.Be5 c4 19.Bc2 Nd5?? (better is 19...Qd5 20.f4 Rad8–/+) 20.Qh5+/– Rf5 21.Bf5 ef5 22.f4 (better is 22.Qf7!? Nf6 23.Bf6 gf6 24.Rfc1+–) 22...Bf6 23.Bf6 (23.Rae1!?+/–) 23...Nf6= 24.Qe2 Ne4 The backward pawn on d2 becomes a target 25.Ra2 Rc8 26.Rc2 Qd6 27.Ra1 Rd8 28.g4 Nd2 29.g5 Qd5 30.Kf2 Ne4 31.Ke1 Nc5 32.Qg2? Qd3 33.Qe2 Qe4 34.Kf2 Nd3 35.Kg3 Re8 36.Rf1 Qe3 37.Qe3 Re3 38.Kg2 Ne1 39.Re1 Re1 40.h4 g6 41.Rd2 Ra1 42.Rd8 Kg7 43.Rd7 Kf8 44.Rh7 Ra3 45.h5 gh5 46.g6 c3 47.Rf7 Kg8 48.Rf5 c2 49.Rc5 Ra2 50.Kf3 b4 51.f5 Ra3 52.Ke2 Rc3 53.Re5 If White now would get Rxc5 in, he might survive 53...c1Q 54.f6 Qb2 55.Kf1 Rf3 56.Ke1 Qe5 57.Kd1 Rf2 58.f7 Kf8 59.g7 Kg7 60.f8Q Kf8 0–1. combijack (1775) – coxamylife, gameknot.com, 2010.

5.Nf3 d5

6.d3 0–0 7.Nbd2 c5 8.Bb2 Nc6 9.g3 Bg4 10.Bg2 Qd7 11.0–0 Bh3 12.Re1 Bg2 13.Kg2 h6 14.Rb1 b6 15.e4 d4 16.Nc4 b5 17.Nce5 Ne5 18.Ne5 Qc7 19.Nf3 a5 20.Bc1 b4 21.Bf4 Qa7 22.ab4 cb4 23.Ne5 Bd6 24.Nc6? (24.Ng4 Ne8+=) 24...Qc7 (24...Qc5 25.Na5 Ra5 26.e5–+) 25.Bd6? (better is 25.Nd4 Bf4 26.gf4+=) 25...Qd6–+ 26.Nd4 Qd4 27.Qd2 Rfe8 28.Rb3 Ne4! 29.Qf4 g5 30.Re4–/+ gf4 31.Rd4 fg3 32.hg3 Rac8 33.Rd5 Rc2 34.Ra5 Ree2 35.Rf5 Rb2 36.Rb2 Rb2 37.Rb5 Rb1 38.d4 b3 39.d5 Kf8 40.Rb6 b2 41.d6 Ke8 42.Kf3 Kd7 43.Kf4 Ke6 44.f3 h5–+ 45.Kg5? h4! 46.Kg4 hg3 (46...hg3 47.Kg3 Rg1 48.Kf4 b1Q 49.Rb1 Rb1–+) 0–1. Bango,Dominik – Urban,Marton Attila, Stara Lubovna SVK, Ch U12 (b), 2013.

6.d4 Nc6 7.e3 0–0 8.c4 dc4 9.Bc4 Ne5 10.Ne5 Bd6 11.Nc3 Qe7 12.Qb3 Be5–/+ 13.de5 Qe5 14.0–0 b6 15.Rfd1 Bb7 16.Bd5 Nd5–+ 17.Nd5 Rfd8 18.Nf4 Qe4 19.h3 Re8 20.Rd7=+ Re7 21.Re7 Qe7–/+ 22.Rd1 h6 23.a4 Qe4 24.f3 Qe7–/+ 25.Kf2 Re8 26.Re1 Qh4 27.g3 Qf6 28.h4? Qd6 29.Rd1–/+ Qc6 30.e4 Qc5 31.Kg2 Bc6 32.Nd3 Qe3 33.Qc2 Bd7 34.Re1 Qd4–/+ 35.Nb2 c5?? 36.Rd1+/– Ba4 37.Na4 Qb4 38.Nb2 a5 39.e5 b5+/– 40.Nd3 Qd4 41.Nc5 Qe5+= 42.Kf2 Rc8= 43.f4?? Qc5–+ 44.Qc5 Rc5 45.Ke3 Kh7 46.g4 b4 47.Ra1 Rc3 48.Kd4 Ra3 49.Rb1 b3 50.g5 a4 51.Kc4 Kg6 52.Kb4 Ra2 53.gh6 Kh6 54.Rf1 b2 (54...b2 55.Rb1 a3–+) 0–1. coloplayah (2145) – aniruddha (2285), net–chess.com, 2006.

6.e3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.a3 Be7 6.Nf3 d5).

6.e3 0–0 7.c4 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.a3 Be7 7.Nf3).

6.e3 c5 7.Bb5 Nc6 8.Bc6 bc6 9.0–0 0–0 10.d3 Bg4 11.Nbd2 Nd7 12.Bf4 Nf6 13.c4 Bd6 14.Bd6 Qd6 15.Qc2 Rad8 16.Rfb1 dc4 17.Nc4 Qd3 18.Qd3 Rd3 19.Nfe5 Rc3 20.Nd6 Be6 21.Nc6 a6 22.Rc1 Nd5 23.Ne7 Kh8 24.Nd5 Rc1 25.Rc1 Bd5 26.Rc5 Be6 27.h3 h6 28.Rc7 Kg8 29.Ra7 Rd8 30.Ra6 Kf8 31.Nb5 Bc4 32.a4 Rd1 33.Kh2 Rb1 34.Ra8 Ke7 35.Ra7 Kf6 36.Na3 Rb4 37.Nc4 Rc4 38.a5 Ra4 39.Ra8 g5 40.Kg3 h5 41.a6 Kf5 42.a7 h4 43.Kf3 Ra3 44.g3 hg3 45.Kg3 Ra4 46.e4! Kf6 47.e5! Kf5 48.e6! Ra3 49.Kh2 Kf6 50.ef7 Kf7 51.Rh8 Kg7 52.a8Q Ra8 53.Ra8 1–0. Groznyi,Ivan – Waterslag,Ina, OP–2009–0–00828, 2009.

6.e3 c5 7.Bb5 Bd7 8.Nc3= a6 9.Be2 Nc6 10.Rb1 (10.Bf6 Bf6 11.Rb1 Ne7=+) 10...b5 (Better is 10...Ne5 11.Ne5 d4 12.Nd7 Qd7=+ (< 12...Nd7 13.Nd5+=)) 11.Bf6+/– Bf6 12.Nd5 0–0 13.0–0 Be6 14.Nf6 Qf6 15.c4 b4 16.ab4 Nb4 17.d4 a5 18.Ne5 cd4 19.ed4 Rfd8 20.f4 Rac8 21.Rb3 Nc6 22.Rd3 Nb4 23.Rd2 Qe7 24.f5 Bd7 25.f6 Qd6 26.c5 Qb8 27.Bc4 Be8 28.Qg4 g6 29.Ng6! hg6 30.Qg6 1–0. kamret (2220) – multa02 (1755), GameColony.com, 2003.

6.e3 c5 7.Bb5 Nbd7 8.Nc3 =+.

6.e3 c5 7.c4 Nc6 8.cd5 Ne5 9.Ne5 0–0 10.Bc4 Qd6 11.f4 Nd5 12.Nc3 Nb6 13.Ba2 Bf5 14.0–0 Rad8 15.Rf2 Bh4 16.g3 Bf6 17.Nb5 Qe7 18.d4 cd4 19.ed4 a6 20.Nc3 Be6 21.Be6 Qe6 22.Ne4 Nc8 23.Rb1 Be7 24.Re2 (worse is 24.Rb7 f6 25.Qa4 fe5 26.de5 Qd5–/+) 24...Qd5 25.a4 Qd4 26.Qd4 Rd4 27.Rb7 1–0. forsetinn (2420) – gambitqueen17 (2400), gameknot.com, 2015.

6.e3 c6 7.c4 0–0 8.Nc3 Nbd7 9.Bg3 Nb6 10.cd5 Nfd5 11.Nd5 Qd5 12.Qc1 Bf5 13.d4 Be4 14.Qd1 Qa5 15.Nd2 Bd5 16.Bc7 Rac8 17.Bb6 ab6 18.f3 Bf6 19.Kf2 c5 20.Nc4? Bc4–+ 21.Bc4 cd4 22.Rc1 de3 23.Ke3 Qa3 24.Qb3 Rce8 25.Kf2 Bd4 26.Kf1 (26.Kg3 Qd6 27.Kh3 Qh6 28.Kg4–+) 0–1. Hartlaub,Marianne – Karner,Irmgard, 17 sen. BayEM2005 Schney op, 2005.

6.e3 c6 7.c4 Nbd7 A) 8.Bg3 Nc5 9.cd5 Qd5 10.Nc3 Nd3 11.Bd3 Qd3=+; B) 8.Bc3 Nb6 9.cd5 Nbd5 10.Bf6 Nf6 11.d4 0–0=+; C) 8.Bb2 Nb6 9.cd5 Nbd5 10.Nc3 Nc3 11.dc3 Qb6=+; D) 8.d4 Ne5 9.de5 Ne4 10.cd5 Qa5 11.Nbd2 Bg4=+; E) 8.Bf6 Nf6 9.d4 0–0 10.cd5 Qd5 11.Bd3 Rd8=.

6.e3 c6 7.c4 Bg4 8.cd5 Qd5 9.Nc3 Qe6 10.d4 Bf3 11.Qf3 Qb3 =.

6.e3 Nc6 7.Bb5 0–0 8.Bc6 bc6 9.d4=+.

6.e3 Nc6 7.Bb5 Bd7 8.Bc6= bc6 9.0–0 0–0 10.d3 Bd6 11.Nbd2 Be5 (11...Re8 12.Bd6 cd6 13.c3=) 12.Ne5+= Qe7 13.Ndf3 Ng4 14.Nd7 Qd7 15.c3 (15.c4 Rfe8+/–) 15...Nf6 16.Qa4 c5 17.Qf4 Qd6 18.Qg5 (18.Qf5 Rfe8+=) 18...h6 19.Qf5 Qd7 20.Qf4 Rfe8 21.Rab1 Rab8 22.c4 dc4 23.Qc4+/– Qd5 24.Qd5 Nd5 25.h3 Rb6 26.Rfc1+/– Reb8 27.Nd2 Rb1 28.Rb1 Rb1 29.Nb1 Nb6 30.Nd2 Kf8 31.Nc4 Nd7 32.g4 Ke7 33.f4 g6 34.Kf2 Ke6 35.h4 Nb6 36.e4 Na4 37.f5 gf5 38.ef5 Kf6 39.Ke3 Nc3 40.Kf3 Nd5 41.Nd2 Nb6 42.Ke4 Nd7 43.Nf3 Nb6 44.g5 hg5 45.hg5 Ke7 46.Nd2 a5 47.Nc4 Nc4 48.dc4 Kd6 49.Kf4 a4 50.g6 fg6 51.fg6 Ke6 52.Kg5 1–0. kamret (2220) – multa02 (1750), GameColony.com, 2003.

6.e3 Nbd7 7.d4 Ne5 8.Ne5 =.

5.Nf3 d6

6.Bb2 b6 7.c4 Bb7 8.Nc3 0–0 9.e3 Nc6 10.d4 d5 11.Be2 dc4 12.Bc4 Bd6 13.0–0 Ne7 14.Re1 Ne4 15.Rc1 Ng6 16.Qc2 Re8 17.Nb5 a6 18.Nd6 cd6 19.Qb3 d5 20.Bd3 Nh4 21.Ne5?? Qg5?? 22.Be4+/– de4?? 23.Qf7+– Kh8 24.g3 Rf8?? 25.Qb7+– Nf3 26.Nf3 ef3 27.Rc7 Qh5 28.h4 Qg6 29.d5 Rg8 30.d6! Qg4 31.Rg7! (31.Rg7 Qg7 32.Bg7 Rg7 33.Qa8 Rg8 34.Qf3 Kg7 35.Rc1 Ra8 36.Rc7 Kh6 37.Qf6 Kh5 38.Qg5#) 1–0. inspector (2330) – dennism (2100), net–chess.com, 2008.

6.Bb2 Nc6 7.e3 0–0 8.d4 Bg4 9.Be2 Rb8 10.c4 d5 11.cd5 Nd5 12.Nc3 Nc3 13.Bc3 Qd5 14.0–0 Rfe8 15.Re1 Bf6 16.h3 Bd7 17.Qc2 Bf5 18.Bd3 Bd3 19.Qd3 Re4 20.Nd2 Rh4 21.e4+= Qd7 22.Nf3 Ne5 23.Ne5 Be5 24.d5 Qd6 25.Be5+/– Qe5 26.Qg3 Rf4 27.Qe3 Re8 28.f3 b6 29.g3 Rf6= 30.f4 Qd6 31.Qf3 Qc5 32.Kg2+= Qe7 33.e5 Rg6 34.d6 cd6?? 35.ed6+– Qd7 36.Re8 Qe8 37.d7! Qd8 38.Rc1 Rg3 39.Kg3 (39.Kg3 h6 40.Rc8 Kf8 41.Rd8 Ke7 42.Qe4 Kd6 43.Rc8 Kd7 44.Qc6 Ke7 45.Re8#) 1–0. Nebe,Lutz (1690) – Kunze,Christian, Stadtmeisterschaft, 2001.

6.Bb2 Nc6 7.e3 a6 8.c4 0–0 9.Qc2 Qd7 10.Nc3 Ne5 11.Be2 Nf3 12.Bf3 c6 13.Ne4 Ne4 14.Be4 f5 15.Bf3 Bf6 16.0–0 Bb2 17.Qb2 Qe7 18.d4 Rb8 19.Bc6 Be6 (19...bc6 20.Qb8 Pinning (20.Qb8 Deflection)) 20.Bd5 Bd5 21.cd5 f4 22.ef4 Rf4 23.g3 Re4 24.Rac1 Re2 25.Qb6 Rd8 26.Rc7 Rd7 27.Rd7 Qd7 28.Rc1 Re7 29.Kg2 h6 30.Rc3 Kf8 31.Qb1 Kg8 32.Qg6 Rf7 33.Qe6 Kh7 34.Re3 Qc7 35.h4 Rf6 36.Qe7 Qc2 Exerts pressure on the backward pawn 37.Re2 Qf5 38.Qe4 (38.Qb7?? Qf3 39.Kg1 Qe2 40.Qb1 Kg8–+) 38...h5 39.f3 Kh6 (better is 39...Kg8!?+/–) 40.Qf5+– Rf5 41.Re6 g6 42.Rd6 Rf7 43.Kf2 Re7 44.Rb6 Kg7 45.d6 Rd7 46.Ke3 Kf6 47.Ke4 Kf7 48.Ke5 Ke8 49.Ke6 Rf7 50.Rb3 b5 51.a4 Rb7 52.ab5 ab5 53.Rb4 Rb6 54.g4 hg4 55.fg4 Rb7 56.h5 gh5 57.gh5 Rb6 58.h6 Rb7 59.Rb1 Rh7 60.Rb5 Rh6 61.Kd5 Kd7 62.Rb7 Kc8 63.Rg7 Rh1 64.Rc7 Kd8 65.Ra7 Rd1 66.Ra4 Kd7 67.Rc4 Rd2? 68.Kc5 Ra2+/– 69.Rb4 Rc2? 70.Kd5+– Rd2 71.Rb7 Kd8 72.Kc4 Rd1 73.d7 Rd2 74.Kc5 Rc2?? 75.Kd6 Rc8 76.dc8Q Kc8 77.Rh7 1–0. combijack (1740) – ciano999 (1710), gameknot.com, 2010.

6.Bg3 Ne4 7.d4 c5 8.e3 =+.

6.Bb2 0–0

7.c4 c5 8.Qc2 Nc6 9.e3 a6 10.Ng5 g6 11.h4 h6 12.Nf3 Bf5 13.Qc3 Be4 14.Ng5 hg5 15.hg5 Ne5 16.d4 cd4 17.ed4 Ned7 18.Qh3 Nh5 19.f3?? (19.Nc3 Bc6 20.d5+/–) 19...Bb1–+ 20.Rb1 Qa5 (20...Bg5?! 21.Kf2 Re8 22.Bd3 Be3 23.Kf1–+) 21.Kf2 Qd2 22.Be2 Bg5 23.g4 Qe3 (better is 23...Rae8 24.Rbe1 Qb2 25.gh5–+) 24.Kf1 Rae8?? (better is 24...Qe2! 25.Ke2 Nf4 26.Kf2 Nh3 27.Rh3 Rac8–+) 25.Re1= Ndf6 26.Bc1 Qd4 (26...Qc1!? 27.Rc1 Bc1 28.gh5 Nh5+=) 27.Bg5+/– Nh7 28.gh5?? (better is 28.Bh6 N5f6 29.Qh2+/–) 28...Ng5+= 29.Qg3 Re2 30.Re2+= Qd1 31.Qe1 Qe1 32.Ke1 Nf3 33.Kf2 Ne5 34.c5 Nd3 35.Kg3 dc5 36.Re7 b5 37.hg6 Kg7 38.gf7 b4 39.ab4 Nb4 40.Rc7 Nd3 41.Ra1 Rf7= 42.Rc6 Nf2 43.Raa6 Ne4 44.Kg4 Nf6 45.Kf5 Nd5 46.Kg5 Ne7? 47.Rc5+– Rf1 48.Rc7 Rg1 49.Kf4 Kf7 50.Rd6 Rf1 51.Kg3 Rf6 52.Rdd7 Rg6 53.Kf4 Rf6 54.Kg5 Rg6 55.Kh5 Re6 56.Kg4 Rg6 57.Kf4 Rf6 58.Ke5 Re6 59.Kd4 Kf6 60.Kc4 Re4 61.Kd3 Re6 62.Kc4 Re5?? 63.Rd8 Re4 64.Kb5 Re5 65.Ka6 Re6 66.Kb7 Ng6 67.Rg8 Kf5 68.Rcg7 Re7+= 69.Re7 Ne7 70.Rf8 Ke6 71.Rf1 Nf5 72.Kc7 Kf6 73.Kd7 Ke5 74.Ra1 Kf6 75.Ra4 Ke5 76.Rb4 Nd6 77.Rh4 Nf5 78.Rh5 Kf6 79.Rf5 Kf5 ½–½. combijack (1795) – stockwell, gameknot.com, 2010.

7.e3 b6 8.Be2 Bb7 9.0–0 Nbd7 10.d4 d5 11.Nbd2 Bd6 12.h3 Re8 13.c4 c5 14.dc5 Bc5 (14...Nc5 15.cd5 Nd5 16.Nc4=) 15.Nb3 Bf8 16.Bd4 (16.cd5 Rc8+=) 16...Rc8 17.Nbd2 Ne4 (17...Nc5 18.Rc1=) 18.Ne4 (18.cd5!? Bd5 19.Ne4 Be4 20.Ra2=) 18...de4+= (worse is 18...Re4 19.cd5 Nc5 20.Bc5 Bc5 21.Bd3+=) 19.Nd2 Nc5 20.a4 Qg5 (20...Bc6+=) 21.Bc5 (better is 21.a5!?=) 21...Bc5–/+ 22.a5 (22.Nb3 Rcd8 23.Qc2 Bd6–/+) 22...Rcd8 23.Qc2? (23.ab6 Be3! 24.fe3 Qe3 25.Kh1 Rd2 26.Qa4–+) 23...Be3!–+ 24.Qa4 (24.fe3 Qe3 Double attack) 24...Bd2 25.ab6 ab6 (better is 25...e3 26.f3 Re6 27.Kh1 ab6 28.Qb3–+) 26.Rab1 (26.Qb5 Qb5 27.cb5 g6–+) 26...e3 27.f3 Re6 28.Rb5 (28.Kh1 Rg6 29.Rg1–+) 28...Qg3 29.Kh1 Rg6 30.Rg1 Be1 (better is 30...Rh6 31.Rf1 Bc6–+) 31.Rb1 (31.Qa1 Bf2 32.Qe5 Qe5 33.Re5 Bg1 34.Kg1–+) 31...Bf2 32.c5 Bg1 (32...Rh6 33.Qg4 Qg4 34.Bd3 Rh3 35.gh3 Qh3) 33.Rg1–+ bc5 34.Qb5 Bc8 (34...Rh6 35.Rb1 Rh3 36.gh3 Bf3 37.Bf3 Qf3 38.Kg1 e2 39.Qd7 Qg3 40.Kh1 Rd7 41.Rb8 Qb8 42.Kg2 e1Q 43.Kf3 Qbg3) 35.Bc4 Rf8 (35...Bh3 36.Qe8 Re8 37.Bf7 Kf7 38.f4 Bg2 39.Rg2 Qg2) 36.Qc5 (36.Qb1 Rh6 37.Qb8 Qb8 38.Bf7 Rf7 39.f4 Rf4 40.Rd1 e2 41.Rd8 Kf7 42.Rf8 Kf8 43.g4 Rg4 44.h4 e1Q) 36...Bh3! 37.Bf1 (37.gh3 Qg1) 37...e2! 0–1. Sapareva,Magdalena – Bozilov,Dragan (2080), 174th Open MGU, 2016.

7.e3 c5 8.c4 Nc6 9.d4 Qb6 10.Qc2 Bf5 11.Qc3 Ne4–+ 12.Qc1 Bf6 13.Nbd2 cd4 14.Nd4 Nd4 15.Bd4 Bd4 16.ed4 Rfe8 17.Be2 Qd4 18.Ne4 Qe4 (19.Qd2 Qg2–+; < 18...Be4 19.0–0 Bg2 20.Qd1–+) 0–1. Loulou – richard, HCL–M428 playchess.de, 2003.

7.e3 c5 8.c4 Bf5 9.d3 Nc6 10.e4 Bg6 11.Be2 Nd7 12.Nc3 Bf6 13.Rb1 Nb6 14.0–0 Rb8 15.Nb5 Bb2 16.Rb2 f5 17.Qc2 Re8 ½–½. Anlauf,Wolfgang – Gensch,Manfred (1810), 17OBSen–Rowy, 2008.

7.e3 c5 8.d3 Qb6 9.Qc1 Nc6 10.Nbd2 d5 11.Rb1 Qa5 12.Be2 b5 13.0–0 c4=+ 14.d4 c3–/+ 15.Nb3? cb2–+ 16.Na5?? bc1Q 17.Ne1 Qa3 (17...Qa3 18.Nc6 a6–+; better is 17...Qb1 18.Nc6 Ba3 19.Nf3 Qc2 20.Bb5–+) 0–1. Wobick,R – Schuehler,Ernst, corr SOK–89–51, 1989.

7.e3 c5 8.d4.

7.e3 d5 8.Nc3 +=.

7.g3 c5=+ 8.Bg2 Qb6 9.Qc1 d5 10.0–0 Qe6 11.Re1 Re8 12.d4 Nc6 13.Nbd2 b6 14.c4= cd4 15.cd5 Nd5 16.Nd4 Nd4 17.Bd4 Rb8 18.Qc4 Rd8 19.e4 Nf4=+ 20.gf4 Qc4 21.Nc4 Rd4 22.Ne5 Bb7–/+ 23.a4 f6 24.Ng4 Bc5–+ 25.h3 Re8 26.Rab1 Be4 27.Kh2 h5 28.Be4 Ree4 29.Nf6 gf6 30.Rec1 Ra4 31.Kg3 Rf4 (31...Rf4 32.Rc2 h4 33.Kg2 Ra3–+) 0–1. wlittle (2100) – andyj (2250), net–chess.com, 2005.

5.g3 0–0

6.Bb2 Nc6 7.Bg2 d5 8.Nf3 Bf5 9.0–0 Re8 =+.

6.Bb2 d5 7.Bg2 Bf5 8.Nf3 c5 9.0–0 Re8 =+.

6.Nf3 Nc6 7.Bb2 d5 8.Bg2 Re8 9.0–0 Be6 =+.

6.Nf3 d5 7.Bg2 Nbd7 8.Bb2 c5 9.Ra2 Re8 =+.

6.Bg2 c5 7.e4 Nc6–/+ 8.Bb2 d5 9.ed5 Nd5 10.Ne2 Bf6 11.Nbc3 Nc3 (11...Nc3 12.Nc3 Re8 13.Kf1 Nd4–/+) 0–1. mic (2305) – acidtest (2540), net–chess.com, 2006.

6.Bg2 Nc6 7.Bb2 d5 8.Nf3 Re8 9.0–0 Be6 =+.

6.Bg2 d5

7.e3 Nc6 8.Bb2 Re8 9.d3 Bc5 10.d4 Bd6 11.Nd2 Be6 12.Ne2 Qd7 13.0–0 Bh3 14.c4 Bg2 15.Kg2 dc4 16.Nc4 Rab8 17.Nd6 cd6 18.Nf4 d5 19.Qb3 Na5 20.Qc2 Nc4 21.Qe2 Qf5 22.a4 Ne4 23.Rfd1 Rbc8 24.Rac1 Rc6 25.f3 Nf6 26.g4?? Ng4! 27.fg4 Qf4!! 28.ef4 Re2 29.Kh3 Rh6 30.Kg3 Reh2 31.Re1 R6h3# 0–1. baudrey – marluc, Live Game Caissa's Web, 2004.

7.e3 Be6 8.Nf3+= c5 9.Nc3 Nc6–/+ (9...Nbd7 10.0–0 Re8 11.Rb1 b6 12.Qe2 Ng4 13.Bf4 g5 14.Ng5 Bg5) 10.Ng5?? (better is 10.Ne2–/+ Ne5 11.Ne5 Qc7 12.f4 Rfe8 13.0–0 Bd6 14.Nf3 a6) 10...Ne5–+ 11.h4 (11.Ne6 fe6 12.Qe2 c4–+) 11...Bg4 12.Qb1 (12.f3 Bf5–+) 12...d4 13.Ne2 (13.Nd1 Rb8–+) 13...de3 14.fe3 Nc4 15.d3 (15.Qc1 Qa5 16.c3 Rad8–+) 15...Ne3 16.Bb7 Rb8 17.Nf4 (17.Qc1 Nc2! 18.Qc2 Rb7 19.Kf2–+) 17...Bc8 18.Qc1 (18.Kd2 Rb7 19.Qc1 Nfg4–+) 18...Bb7 19.Rh2 (19.Rg1 Nfg4 20.Rb1 c4–+) 19...Nfg4 20.Rh3 (20.Re2–+) 20...Qd4 21.a4 Nc4! 22.Qd1 (22.dc4 Bg5) 22…Qf2# 0–1. Wloka,Frank – Knoeppel,Peter Otto (2155), BdF OS–015 remoteschach.de, 2004.

7.Nf3 c5 8.0–0 Nc6 9.Bb2 Qb6 10.Bc1 Ne4 11.d3 (11.Nc3!? Rd8 12.Qe1–/+) 11...Bf6 12.de4 de4 (12...de4 13.c3 ef3 14.Bf3 Bh3–+; 12...Ba1?! 13.ed5 Nd4 14.Nd4 Bd4 15.Bf4=) 0–1. RWO – marekt, ChessWorld.net, 2012.

7.Nf3 c5 8.Bb2 Nc6 9.0–0 Qb6 =+.

7.Nf3 c5 8.d3 Nc6 9.Nbd2 Ne5–/+ 10.Ne5 Qc7 11.Nef3 Be6 12.0–0 d4 13.Qc1 Nd5 14.Ne4 Bf5 15.c4 Be4 16.de4 Nc3 17.Qc2 a6 18.e3 Bf6 19.ed4 cd4 20.e5 Be5 21.Ne5=+ Qe5 22.Bb7 Rad8 23.Rac1? Ne2–+ 24.Kg2 Nc1 25.Qc1 Qa5 26.c5 d3 27.c6 d2 28.Qc2? Qc7 29.Rd1=+ Rb8 30.Rd2= Rb7 31.cb7 Qb7 32.f3 Qe7 33.Qa4 Qg5 34.f4 Qf6 35.Qd4 Qc6 36.Qd5 Qc3 37.f5 h6 38.Rf2 Qf6 39.Rc2 Re8 40.Qf3 Rd8 41.Rc6 Rd2–/+ 42.Kh3 Qb2 43.Qh1 Qa3?? 44.f6 Qd3–+ (44...Qd3 45.Rc5 g5–+). Schmidt,Raul – Epure,Catalin, Miercurea Ciuc op, 1999.

7.Nf3 Nc6 8.Bb2 Bf5 9.0–0 Re8 =+.

4.a4 0–0

5.Na3 Nc6 6.Bb2 Re8 7.Nf3 d6 8.Nb5 Bg4 9.e3=+ Ne5 10.Be2 a6 11.Nbd4 Ne4 12.0–0 Bd2?? 13.Nd2+– (13.Nd2 Nd2 14.Qd2 (14.Bg4?! Nf1 15.Kf1 Nc4+=) 14...Be2 15.Qe2+–) 1–0. Wall,Bill – Dawg, internet, 1999.

5.Na3 Ne4 6.Nf3 Re8 7.Bb2 d5 8.c3 Bc5 (8...Bd6 9.d3 Nc5 (9...Nf6 10.e3 Bg4 11.Be2 c6 12.0–0 Qc7 13.h3 Bf3+=) 10.Nb5+= Be7 11.e3 Ne6 12.Be2 c6 13.Nbd4 Nd4+=) 9.e3+= Bg4 (9...Nd7 10.Be2 (10.Bb5–/+ c6 11.Be2 Qa5 12.Nc2 Bd6 13.d3 Nec5+=) 10...c6 11.0–0 Qa5 12.c4 Nb6 13.cd5 cd5+=; 9...c6 10.Nc2 Bg4 11.h3 Bf3 12.gf3 Nf6 13.Rg1 Nbd7+=) 10.h3 (10.d3 Nf2 (10...Nd6+= 11.Be2 Qf6 12.Qb3 Be6 13.Nb5 Nb5=) 11.Kf2 Be3 12.Ke1 Bc1 13.Kf2 Bb2–+) 10...Bh5 (10...Bf3 11.gf3 Ng5 12.f4 Ne4 13.d3 Nf6+=) 11.Be2 Bf3 (11...Qe7 12.0–0+= (12.c4 Rd8 13.0–0 Bb4+=) 12...Nc6 13.c4 Rad8+=) 12.Bf3 Ng5 (12...Qe7 13.0–0+= (13.Nc2 c6=) 13...Nd7=; 12...Qh4 13.0–0 c6+=) 13.Be2 (13.c4 Ba3=) 13...Nc6 (13...Qe7=) 14.0–0 Qd6 (14...Na5 15.d3=) 15.Nb5 Qd7 16.d4 Bd6 17.c4 Nh3 (17...dc4 18.Bc4 Ne4 19.Nc3=) 18.Kh1 (18.gh3 Qh3 19.Nd6+/–) 18...Ng5= 19.cd5 Ne7 20.Nc3 Nf5 (20...a6 21.e4=) 21.Bd3 Nh4?? (better is 21...f6+=) 22.Qh5+– Nhf3? (22...Ngf3 23.Ne4 Re4 24.Be4 g6=) 23.gf3 Qh3 24.Qh3 Nh3 25.Kg2 Ng5 26.f4 Ne6 27.de6 fe6 28.Bc4 a6 29.f5 b5 30.ab5 ab5 31.Nb5 Ra1 32.Ra1 Kf8 33.fe6 Ke7 34.Nd6 cd6 35.Ra7 Kf8 36.Rf7 Kg8 37.e7 Rb8 38.Rf8# 1–0. Marram – Ibrahim Halil, internet, 2010.

5.Nc3 d5

6.Rb1 a5 7.Bf6= Qf6 8.Nd5 Qd6 9.Ne3 Rd8 10.c3+= Bc5 11.d4 Ba3 12.Rb3 Qf8 13.Qc2 b6 14.Nf3 Bb7 15.Ng5 g6 16.Nf7 Kf7 (16...Qf7 17.Ra3) 17.Qa2 Be7?? (17...Bd6 18.Rb6 Kg7 19.Rb7 Nd7+–) 18.Rb6+– Kg7 19.Rb7 (19...Bd6 20.Nc4+–) 1–0. Trkn – guest1152, ICC, 2004.

6.Rb1 Bc3 7.Bc3 d4 8.Bb2 =+.

6.Rb1 Be7 7.Nf3 c5 8.Nb5 Nc6 (8...Na6 9.e3 Ng4 10.Bc3 Nb8 11.Be2 a6 12.Na3 c4 13.Qc1 Nc6=) 9.Bc7 (9.Nc7 Ne5 10.Na8 Nf3 11.gf3 Bd7 12.Rb7 Qa8 13.Qb1 Bd6–+) 9...Qd7 10.Bg3 (10.Bf4 a6 11.Nc3 d4 12.Na2 Qe6 13.Nc1 Qc4–/+) 10...a6 (10...Ne4 11.Bf4 g5 12.Bg3 g4 13.Ng1 Ng3–/+) 11.Na3 (11.Nc3 d4 12.Na2 Qe6 13.Nc1 Qc4–/+) 11...c4 12.Ra1 Ne4 13.e3 Bf6 (13...Re8–/+) 14.c3 Na5 15.Qc2 Nb3 (worse is 15...Ng3 16.hg3 h6 17.d3+=) 16.Ra2 Qe7 17.d4 b5! (17...Ng3 18.hg3 h6 19.Bd3–/+) 18.Bd3 (18.ab5 ab5 Combination) 18...Bf5 (18...ba4 19.Nc4 Bf5 20.Nb6+/–) 19.Be4 Be4 (19...Qe4?! 20.Qe4 Be4 21.Kd1–/+; 19...de4?! 20.0–0+=) 20.Qb2 b4 21.Nc2 Bc2 22.Qc2 Nd4! 23.cd4 (23.cd4 b3 Passed pawn; 23.Nd4 Bd4 Combination) 23...b3 24.Qd2 Rfc8 25.Rc2 bc2 26.Qc2 c3 27.Qb3 a5 28.0–0 c2 29.Rc1 Qb4 30.Qa2 Qc3 31.h4 Be7 32.Ne5 Qd2 33.Qa1 Rab8 34.Nc6 Rc6 35.Bb8 Rb6 36.Bf4 Qc1!! 37.Qc1 Rb1 38.e4 Ba3 39.Bh2 Rc1 0–1. Sipila,Vilka (2315) – Shimanov,Aleksandr (2545), Stockholm SWE, 2011. (=1.a4 Nf6 2.b4 e5 3.Bb2 Bb4 4.Be5 0–0)

4.a4 Nc6

5.Bb2 b6 6.e3 Bb7 7.Qf3 Be7 8.Nc3 0–0 9.Bc4 Na5 10.Bd5 Nd5 11.Nd5 Bd5 12.Qd5 c6 13.Qf3 d5 14.d3 Bb4 15.Kd1 Bd6 16.Ne2 Re8 17.Ng3 f6 18.Nf5 Be5 19.Rb1 Nb7 20.Qg4 Qc7 21.d4 Bd6 22.f3 Na5 23.e4 Nc4 24.Bc1 Kh8 25.Qh4 de4 26.fe4 c5 27.d5 Qd7 28.Rb3 Be5 29.Rh3 g6 30.Nh6 Re7 31.Rf1 Nd6–/+ 32.a5 Ba1 33.Ra3 Ne4 34.c4 Bd4 35.ab6 Qe8 36.Kc2? ab6 37.Qh3 b5 38.Qb3 Ra3 39.Ba3 bc4 40.Qc4 Nd6 41.Qa6 Re2 42.Kd1 Nb5 43.Bb4 cb4 (43...cb4 44.Nf7 Kg7 45.Qa8 Nc3 46.Kc1 Qe3#) 0–1. Fritz 5.32 – Fritz 6, 2003.

5.Bb2 d5 6.Nf3 0–0 7.e3 Re8 8.Be2 Na5 9.0–0 Nc4 10.Bc4 dc4 11.Qe2 Be6 12.Na3 c3 13.dc3 Bc5 14.Rfd1 Qe7 15.Nb5 a6 16.Nbd4 Bg4 17.Rd3 Nd5 18.h3 Nf4 19.ef4 Qe2 20.Ne2 Bf3 21.Nd4 Be4 22.Re3 Kf8 23.Rae1 Bd5 24.g4 Re3 25.fe3= Re8 26.Kf2 b6 27.Ra1 Be4 28.a5 b5 29.Rd1 Rb8 30.Rd2 c6 31.Nf3 f6 32.Ke2 Re8 33.Nd4 Kf7 34.f5 Bd5 35.Bc1 g5 36.Rd1 Re7 37.Rd2 Ke8 38.Bb2 Re4 39.Ba1 Kd7 40.Kf2 Kc7 41.Rd3 Bd6 42.Bb2 Bc4 43.Rd1 h6 44.Nb3 Re5 45.Nd2 Rd5 46.e4 Bc5 47.Ke1 Re5 48.Ba1 Re8 49.Nc4 Re4–/+ 50.Kd2 Rc4 51.Kd3 Bd6–/+ 52.Re1 Be5 53.Re4 Rc5 54.Bb2 Rd5 55.Ke2 Rd8 56.Re3 c5 57.Ba3 Kc6 58.Bb2 c4 59.Ba3 Rd7 60.Bf8 Rh7 61.Kf3 h5 62.Re2 hg4–+ 63.hg4 Rh3 64.Kf2 Rc3 65.Bb4 Rh3 66.Bd2 Kd5 67.Bb4 c3 68.Be7 Rh2 69.Kf3 Re2 70.Ke2 Ke4 71.Bc5 Kf4 72.Kd3 Kg4 73.Ke4 Kg3 74.Be7? g4 75.Bb4 Kh2 76.Ba3 g3 77.Kf3 g2 78.Bc5 Bc7 79.Bd4 Ba5 80.Ke4 Bc7 81.Kd3 a5 82.Bc5 Be5 83.Ke4 a4 84.Kd5 a3! 0–1. Fritz 5.32 – Fritz 8, 2003.

5.Bc3 Ne4 6.Bg7+= Rg8 7.Bb2 d5 8.Nf3 Be6 9.e3 a6 10.c3 Bd6 11.d3 Nc5 12.Ba3 Qb8 13.Nbd2+/– Be7 14.a5! Bd6 15.Qc2 f5 16.Nd4+– Qc8 17.Nc6 bc6 18.c4 Nd7 19.cd5+– Bd5 20.e4 Ba3 21.Ra3 Qd8 22.Rc3 Qe7 23.Kd1 fe4 24.de4 Bf7 25.Rc6 Qe5 26.Qc3 Kd8 27.Qe5 Ne5 28.Rc3 Kd7 29.g3 Nc6 30.Bh3 Kd6 31.f4 Bh5 32.Kc1 Bg4 33.e5 Ne5 34.fe5 Kd7 35.Bg2 1–0. Fritz 6 – Comet B50, 2003.

5.c3 Be7

6.Bf6 Bf6 7.d4 d5 8.e3= 0–0 9.Bd3 a5 10.Nf3 Bg4 11.Nbd2 Kh8 12.0–0 Ra7 13.Qc2+= h6 14.Bf5 h5 15.h3+/– Bf3 16.Nf3 Ne7 17.Rab1 h4 18.Bd3 Qc8 19.c4 dc4 20.Qc4+– b6 21.e4 Ng8 22.d5 Qd8 23.e5 Bg5 24.Qe4 g6 25.Rfd1 Nh6 26.Nd4 Ra8 27.Bb5 Qe7 28.f4 Bf6 29.Bc6 Rab8 30.d6 cd6 31.ef6 Qf6 32.Rb5 Rfc8 33.Re1 Rc7 34.Rbb1 Kg8 35.Nb5 Rcc8 36.Rbd1 Rd8 37.Nc7 Qf5 38.Qf3 Qc5 39.Kh2 Nf5? 40.Na6 Qc4 41.Nb8 Rb8 42.Bd7 Rd8 43.Bf5 gf5 44.Qf2 Qa4 45.Qh4 Qd7 46.Rd3 f6 47.Rg3 Qg7 48.Re7 Kf8 49.Rgg7 b5 50.Qf6# 1–0. Fritz 8 – EXchess 3.11, 2003.

6.Bf6 Bf6 7.d4 Qe7 8.e3 0–0 9.Qh5 Re8 10.Bd3 g6 11.Qf3 Bh4 12.e4 d5 13.e5 Qg5 14.Ne2 Bg4?? 15.Qf4= h6 16.Nd2 Rad8 17.Rb1 b6 18.h3+= Be2 19.Qg5 Bg5 20.Ke2 Re6 21.Nf3 Be7 22.Ke3 f6=+ 23.Bg6 fe5–/+ 24.Bf5 ed4 25.Kd3 Rf6 26.g4 dc3 27.Kc3 d4 28.Kd2 d3 29.Rhd1 Bb4 30.Ke3 Bc5 31.Ke4 Rfd6 32.Rd2 Bb4 33.Rdd1 Bc3 34.Ke3 Re8–+ 35.Be4 d2! 36.h4 Nb4 37.g5 Rde6 38.Nd2 Bd2 39.Kd2 Re4 40.gh6 Kh7 41.Kc3 c5 42.Rd6 Rh4 43.a5 ba5 44.Rg1 Rh3 45.Rg3 Rh6 46.Rd7 Kh8 47.Ra7 Ra6 48.Rh3= Kg8 49.Rg3 Kf8 50.Rf3 Kg8 51.Rg3 Kf8 52.Rf3 Kg8 53.Rg3 ½–½. Fritz 5.32 – Crafty 19.01, 2004.

5.Bc3 0–0

6.e3 Bc3 7.Nc3 d5 8.Bb5 Ne7 9.Nf3 c5 10.0–0 c4–/+ 11.a5 a6 12.Ba4 Qa5 13.Nd4 Qc7 14.d3 Rb8–+ 15.Re1 Ng4 16.f4 b5 17.h3 Nf6 18.Bb5 ab5 19.Ndb5 Qc5 20.dc4 Qc4 21.Qd4 Qc6 22.Qe5 Be6 23.Qd6 Qd6 24.Nd6 Rb2 25.Reb1 Rc2 26.Ncb5 Nc8 27.Nc8 Rfc8 28.Nd4 R2c3 29.Re1 Kf8 30.f5 Bd7 31.Ra5 Ke7 32.g4 Kd6 33.Ra6 Kc5 34.Ra5 Kb6 35.Raa1 Ne4 36.Kg2 g5 37.Reb1 Kc5 38.Rc1 Rc1 39.Rc1 Kd6 40.Ra1 Rb8 41.h4 Rb2 42.Kh3 Nf2 43.Kg3 gh4 44.Kh4 Ne4 45.Ra6 Kc5 46.g5 Rh2 47.Kg4 Rg2 48.Kf4 Rg5 49.Ra7 Be8 50.Ra5 Kd6 51.Ra6 Kc7 52.Rh6 Rg7 53.Ke5 Nc3 54.Kf4 Kd7 55.Nb3 Kd8 56.Nd4 Bd7 57.Ke5 Ke8 58.Rb6 Rg5 59.Kd6 Ne4 60.Kd5 Rg4 61.f6 Kd8 62.Ra6 Bc8 63.Ra7 Nf6 64.Kd6 Ne4 65.Kc6 Rg7 66.Kd5 Nd2 67.Nc6 Ke8 68.Ra8 Rg5 69.Kd6 Nc4 70.Kc7 f5 71.Rc8 Kf7 72.Rd8 Ne3 73.Rd7 Kg6 74.Ne5 Kf6 75.Kd6 Rh5 76.Rf7 Kg5 77.Kc5 Rh3 78.Kd4 h5 79.Rg7 Kf4 80.Ng6 Kf3 81.Re7 Ng4 82.Rf7 Nh6 83.Rf6 h4 84.Ne5=+ Ke2 85.Rh6= f4 86.Ng6 Kf3 87.Ke5 Kg4 88.Nf4 Re3 89.Kd4 Re1 90.Nd3 Rd1 91.Ke4 Kg3 92.Rg6 Kh2 93.Ne5 Re1 94.Kf4 Rf1 95.Nf3+/– Kh1 96.Kg4 h3 97.Rh6 Kg2 98.Rh3 Kf2 99.Kf4 Ke2 100.Ke4 Kf2 101.Ne5 Re1 102.Kd4 Rd1 103.Kc5 Rc1 104.Kb4 Re1 105.Nd3 Kg2 106.Rh8 Rb1 107.Kc4 Kf3 108.Re8 Rd1 109.Nc5 Rc1 110.Kb4 Rb1 111.Ka3 Rd1 112.Ne6 Rb1 113.Ka2 Rd1 114.Kb3 Rc1 115.Ka4 Rd1 116.Kb5 Kg4 117.Ka5 Kf5 118.Ka4 Rb1 119.Ka3 Rd1 120.Kb3 Rd6 121.Nc5 Rd1 122.Ka3 Rb1 123.Ka2 Rd1 124.Kb2 Kf4 125.Kc3 Kf5 126.Ne6 Rc1 127.Kd2 Rb1 128.Kc2 Ra1 129.Kb3 Rc1. Fritz 8 – Fritz 6, 2003.

6.e3 Re8 7.Bb4 Nb4 8.c3 Nbd5 9.c4 Nb4 10.d4 d6 11.Nf3 Bf5 12.Na3 c5 13.Be2 Ne4 14.dc5 dc5 15.Qb3 Qe7 16.0–0=+ Qf6 17.Nb5 Qg6 18.Nc7+= Bh3 19.Nh4 Qf6 20.Rad1 Qh4 21.Na8 Bg2 22.Kg2 Ra8 23.f3 Ng5 24.f4 Ne4= 25.Qb2 Re8 26.Bf3 b6 27.Rg1 f6 28.Be4+= Re4 29.Rd8 Kf7 30.Qf2 Qg4+= 31.Kh1 Qe6 32.Qg2 g6 33.Rh8 g5 34.fg5 f5 35.Rh7 Kg8 36.Qh3 Kf8 37.Ra7 Rh4 38.Qh4 (38.Qh4 Qc6 39.Rg2 Qe6 40.Qh8 Qg8 41.Qf6 Ke8 42.Qe7#) 1–0. Fritz 5.32 – Comet B50, 2003.

6.Nf3 d5 7.Bb4 Nb4 8.c3 Nc6 9.Na3 Ne4 10.g3 d4 11.cd4 Nd4 12.Bg2 Bg4 13.Nc4 Nf3 14.ef3=+ Be6 15.fe4 Bc4 16.Rc1 Qd4 17.Qc2 Bd3 18.Qc3 Rad8 19.Qd4 Rd4 20.Rc7 Ra4 21.f3 b5 22.Kf2 b4 23.Bf1 Bf1 24.Rf1 a5 25.d4 Ra2 26.Ke3 b3 27.Rb1 a4 28.d5 b2 29.d6 Rd8 30.Kd3 a3–/+ 31.Kc2 f6 32.d7 Kf7 33.h3 Ke7 34.e5 fe5 35.Rc5 Kd6 (35...Kd6 36.Rc3 Rd7–+; 35...Rd7?! 36.Re5 Kf6 37.Ree1–+; < 35...Kd7 36.Rd5 Kc7 37.Re5–+) 0–1. Marr33 (2215) – YodaWindu (2685), Rated game, 3m + 0s, 2010.

6.Nf3 d5 7.e3 Bc3 8.Nc3 d4 9.Nb5 de3 10.fe3 a6 11.Nc3 Re8 12.Be2= b6 13.0–0 Bb7 14.Rb1 Qd6 15.Qe1 Rad8 16.Qh4 Ne7 17.Bd3 h6 18.Rf2 c5 19.Rff1 Rd7 20.Rf2 Ned5 21.Nd5 Nd5 22.Bf5 Rdd8 23.Rbf1 Nf6=+ 24.Bd3 Ne4 25.Re2 Rd7 26.Bc4 Rde7 27.Bb3 Nf6 28.Qf2 Qd7 29.Nh4 Ne4 30.Qf5 Nd6 31.Qd7 Rd7 32.Nf5 Nf5 33.Rf5 Be4 34.Rf4= b5 35.ab5 ab5 36.d3 Bg6 37.e4 Rd4 38.Kf2 c4 39.dc4 bc4 40.c3 Rd3 41.Bc4 Rc3 42.e5 Rc8 43.Bd5 R3c5 44.Rd4 Kf8 45.e6 R8c7 46.Bb3 fe6 47.Re6 Bc2 48.Ba2 Bf5 49.Re2 g5 50.g4 Bd7 51.Red2 Bc8 52.Bd5 Rc2 53.Ke2 R7c3 54.Bg2 Ke7 55.Bf3 Rd2 56.Rd2 Be6 57.Kf2 Kf6 58.Re2 Rd3 59.h3 Bf7 60.Bg2 h5 61.gh5 Bh5 62.Rb2 Bg6 63.Rb6 Kf7 64.Ke2 Rd7 65.Bc6 Rd8 66.Rb4 Kf6 67.h4 gh4 68.Rh4 Ke5 69.Ra4 Bc2 70.Ra7 Kd4 71.Bg2 Bd3 72.Kd2 ½–½. Fritz 6 – Fritz 5.32, 2003.

6.Nf3 d5 7.e3 Bg4 8.Be2 Ne4 9.Bb4 Nb4 10.c3 Nc6 11.0–0 Qf6 12.Qb3 Ne5=+ 13.Qb7 Bf3 14.gf3 Nf3 15.Bf3 Rfb8 16.Qd5= Qf3 17.d3 Qg4 18.Kh1 Qh3 19.Kg1 Qg4 20.Kh1 Qe2 21.Kg2 Nf6=+ 22.Qf5 Rd8 23.d4 Rd5 24.Qf4 Re8 25.c4 Nh5 26.Qh4 Rd6 27.Nd2 Rg6 28.Kh1 Nf6 29.Qf4 Qd2 30.Qc7 Ne4 31.Qd7 Kf8 32.Qf5 Rf6 33.Qh3 Nf2 34.Rf2 Rf2 35.Qg3 Qe3 36.Qe3 0–1. Fritz 6 – Fritz 8, 2005.

6.Nf3 d5 7.e3 Bg4 8.Be2 Re8 9.0–0 Ne4 10.Bb2 Qe7 11.d3 Ng5 12.c3 Bd6 13.Ba3 Bf3 14.Bf3 Ba3 15.Ra3 Rad8 16.Bg4 Ne5 17.Be2 Nd7 18.d4 Ne4 19.Rb3 b6 20.Nd2 c5 21.Ne4 de4 22.a5 Qe6 23.ab6 ab6 24.Qb1 Re7 25.Rd1 Ra8 26.d5 Qg6 27.h3 f5 28.d6+/– Re5 29.Bb5+– Ra7 30.Bd7 Rd7 31.Rb6 Qe6 32.Qb5 c4 33.Qc6 h5 34.Rb7 Rd8 35.Qc7 Qf6 36.d7 Kh7 37.Rb8 (37.Rb8 Rd7 38.Rd7+–) 1–0. Fritz 6 – Fritz 8, 2003.

6.Nf3 d6 7.e3 Re8 8.Bb5 Bd7 9.0–0 a6 10.Bc6= Bc3 11.Bd7 Ba1 12.Be8 Ne8 13.c3 b5 14.Qc2 b4 15.Qa2 Bc3 16.dc3 a5 17.Nbd2 bc3 18.Ne4 Nf6 19.Nc3 Rb8 20.Qc4 Rb4 21.Qa6 c5 22.Rd1 d5 23.Qa7 Rc4 24.Nd5! Nd5 25.Ne5 Ra4 26.Qf7 Kh8 27.Qe6 Qf8 28.Nf7 Kg8 29.Ng5 (29.Ng5 Kh8 30.Qd5+–) 1–0. Fritz 8 – Comet B50, 2003.

6.Nf3 Ne4 7.Bb4 Nb4 8.c3 Qf6 9.d4 Nd5 10.c4 Nf4 11.e3 Re8 12.Nbd2 Qf5 (12...Nd2!? 13.Kd2 Ng6=+) 13.Qc2+= (13.ef4?? Nc3 14.Be2 Nd1 (14...Ne2?! 15.Qe2 Re2 16.Ke2–+; 14...Re2?! 15.Qe2 Ne2 16.Ke2–+) 15.Kd1 Qf4–+) 13...d6 14.Ne4+/– Qe4 15.Qe4 Re4 16.Kd2 Nh5 17.Bd3 Re8 18.Rhb1 Nf6 19.a5 a6 20.Rb3 h6 21.Rab1 Rb8 22.Ke2 Ne4 23.h4 Re7 24.c5 dc5 25.Ne5 cd4 26.Nc6 bc6 27.Rb8+– Nc3 28.Ke1 Re8 29.R1b7! de3 30.Bf5! Kf8? 31.Rc8 ef2 32.Kf2 Ne4 33.Ke1 Nd6 34.Re8 Ke8 35.Rb8 Ke7 36.Bd3 c5 37.Ba6 c4 38.Bc4! Nc4 39.a6 Nb6 40.a7 g5 41.Rb6! cb6 42.hg5 hg5 43.a8Q f5 44.Qb7 Ke6 45.Qb6 Ke5 46.Qh6 g4 47.Kf2 f4 48.Qg5 Ke4 49.Qg4 1–0. Trkn – NN, 2002.

6.Nf3 Re8 7.e3 a5 8.Bb5 Ne4 9.0–0 b6 10.Bb2 Ba6 11.d3 Ng5 12.Nbd2 Nf3 13.Nf3 Qe7 14.Ba6 Ra6 15.c3 Bd6 16.c4 f6 17.Rb1 Bb4 18.Nd4 Nd4 19.Bd4 Qf7 20.Qf3 Ra7 21.Rfc1 Raa8 22.c5 Ba3 23.Rc2 bc5 24.Bc5 Bc5 25.Rc5 Ra7 26.Rbb5 Qa2 27.Qd1 Rea8 28.Rb1 Re8 29.Rcb5 Ra6 30.Rb7 Rc6 31.Qh5 Rf8 32.Qa5 Rc2 33.Qf5 Qa4 34.Qd5 Kh8 35.h3 Qh4?? 36.Rb8+– Qf2 37.Kh2 h6 38.Rf8 Kh7 39.Qe4 f5 1–0. Fritz 6 – Comet B50, 2004.

6.e3 d5

7.Bb4 Nb4 8.c3 Nc6 9.d4 Bg4 10.Be2 Be2 11.Ne2 Ne7 12.Nd2 Qd6 13.0–0 Ne4 14.Ne4 de4 15.Ng3 f5 16.Qb3 Kh8 17.f3 (< 17.Qb7 Rfb8 18.Nf5 Rb7 (18...Nf5?! 19.Qe4 Rf8 20.Rab1=+) 19.Nd6 cd6–+) 17...ef3 18.Rf3 (18...c5 19.Raf1+/–) +/–. marekt – GermanPaul, ChessWorld.net, 2003.

7.Nf3 Bg4 8.Be2 Ne4 9.Bb4 Nb4 10.c3 Nc6

11.d3 Nc5 12.0–0 Re8 13.Nbd2 Qf6 14.Rb1 Bf5 15.Qc2 b6 16.Nd4 a6 17.Nf5 Qf5 18.Rb2 Qg6 19.Nf3 Na5 20.Rfb1 Nab7 21.Nd4 Rad8 22.Rd1 Nd7 23.Nf3 Nd6 24.d4 Qc2 25.Rc2 a5 26.c4 dc4 27.Bc4 Nf6 28.Ba2 c5 29.Ne5 Kf8 30.Nc6 Rc8= 31.dc5 Rc6 32.Rd6 Rc5 33.Rc4 Rec8 34.Rdd4 Ke8 35.Bb3 Nd7 36.Rc5 Nc5 37.Bc4 Ke7 38.Bb5 h6 39.Kf1 f5 40.h4 g6 41.g4 fg4 42.Rg4 Rg8 43.Ke2 Rg7 44.f4 Kf6 45.Rg1 g5 46.hg5 hg5 47.Kf3 gf4 48.Rg7 Kg7 49.Kf4 Kf6 50.Bc6 Ke6 51.e4 Kd6 52.Bb5 Ne6 53.Ke3 Ke5 54.Bd7 Nf4 55.Bc6 Ne6 56.Bd5 Nd4 57.Bc4 Nc2 58.Kd2 Kd4=+ 59.Bd5 Nb4–/+ 60.Bb7 Nd3 61.Bc6 Nc5 62.Kc2 Ne4 63.Bb5? Nc3–+ 64.Bd7 Kc4 65.Bc6 Kb4 66.Bf3 Na4 67.Bc6 Nc3 68.Kb2 b5 69.Bd7 a4 70.Be6 a3 71.Ka1 Ka4 72.Bb3 Ka5 73.Be6 b4 74.Bb3 Nb5 75.Ka2 Nd4 76.Bf7 Kb5 77.Be8 Kc4 78.Bg6 Kc3 79.Be4 b3 80.Ka3 Nc2 81.Ka4 b2 (81...b2 82.Bc2 Kc2–+) 0–1. Fritz 6 – Fritz 8, 2003.

11.d3 Nc5 12.0–0 Re8 13.Nbd2 Qf6 14.Rb1 Bf5 15.Qc2 b6 16.Nd4 a6 17.Nf5 Qf5 18.Rb2 Qg6 19.Nf3 Na5 20.Rfb1 Nab7 21.Nd4 Rad8 22.Rd1 Nd7 23.Nf3 Nd6 24.d4 Qc2 25.Rc2 a5 26.c4 dc4 27.Bc4 Nf6 28.Bd3 Nd5 29.Ne5 f6 30.Nc6+/– Rd7 31.Rdc1 Ne7 32.h4 Nd5 33.h5 Ne7 34.Ne7 Ree7 35.Rc6 f5 36.Kf1 Kf7 37.Ke2 Kf6 38.h6 g6+= 39.Rh1 f4 40.g3 fg3 41.fg3 Kg5 42.Rh4 Re6 43.d5? Re5–/+ 44.Rf4 Rd5–+ 45.e4 Re5 46.Kf2 Kh6 47.Ke3 Kg5 48.Kd4 Re8 49.Kc3 h5 50.Kc2 Rde7 51.e5 Re5 52.Rc7 Rc5 53.Rc5 bc5 54.Kd2 c4! 55.Bc4 Nf5 56.Rf3 Kg4 57.Be2 Re2! 58.Ke2 Nd4 59.Kf2 Nf3 60.Kg2 Nh4! 61.gh4 Kh4 (61...Kh4 62.Kf2 g5–+) 0–1. Fritz 6 – Fritz 8, 2003.

11.d3 Nc5 12.0–0 Re8 13.Nbd2 Qf6 14.Rb1 Bf5 15.Nd4 Bg6 16.N2f3 Ne5 17.Ne5 Qe5 18.a5 Qf6 19.Qc2 b6 20.Rb2 Rab8 21.Ra1 a6 22.ab6 cb6 23.Qb1 b5 24.Rba2 Rec8 25.Ra3 Rb6 26.R1a2 Rb7 27.Rb2 Rbc7=+ 28.Qc2 Ne6 29.Rb4 Rc4 30.Qb2 Rb4 31.Qb4 Nd4 32.ed4 Qe6 33.Ra2 Bh5 34.Bf1 Qf6 35.Qa5 Bg4 36.h3 Bd7=+ 37.Qa6 Qa6 38.Ra6 Rc3 39.Rd6 Rc7 40.Rd5 b4=+ 41.Ra5 b3 42.Ra8 Rc8–/+ 43.Rc8?? Bc8–+ 44.d5 b2 45.d6 b1Q 0–1. Fritz 6 – Fritz 8, 2003.

11.d3 Nc5 12.0–0 Re8 13.Nbd2 Qf6 14.Rb1 Bf5 15.Nd4 Bg6 16.N2f3 Ne5 17.Ne5 Qe5 18.a5 Qf6 19.Qc2 b6 20.Rb2 Rab8 21.Ra1 a6 22.ab6 cb6 23.Qb1 b5 24.Ra5 Rbc8 25.Rb4 Na4 26.Rba4 ba4=+ 27.Qa1 Red8 28.Ra4 Rd6 29.Rb4 Rb6 30.Rb6 Qb6 31.Bf1 Rc5 32.Qa4 Qd6 33.Qa3 h6 34.Qa1 Qb6–/+ 35.Qa3 Qa5 36.Qa5 Ra5 37.g4 Ra3–+ 38.Nc6 Bd3! 39.Bd3 Rc3 40.Ba6 Rc6 41.Bb7 Rd6 42.Kg2 d4 43.ed4 Rd4 44.Kf3 Rd3 45.Kg2 g6 46.Be4 Rd4 47.Kf3 Kg7 48.Ke3 Rc4 49.f4 Rc3 50.Kf2 g5 51.f5 Kf6 52.Bd5 Rh3 53.Kg2 Rd3 54.Be4 Rd2 55.Kg3 Ke5 56.Bf3 Rd3 57.h3 Rb3 58.Kg2 Kf4 59.Be2 Rb2 60.Kf2 Re2! 61.Ke2 Kg3 62.Ke3 Kh3 63.Kf2 f6 64.Kf3 Kh4 (64...Kh4 65.Ke3 Kg4–+) 0–1. Fritz 6 – Fritz 8, 2003.

11.d3 Nd6 12.0–0 Qf6 13.Qb3 Bf3 14.Bf3 Ne5 15.Qd5 c6 16.Qd4 c5 17.Qd5+= Rfd8 18.Rd1 Rac8 19.a5 h6 20.Be2+/– Qf5 21.f4 Ng6 22.Qf5+/– Nf5 23.Kf2 Re8 24.e4 Nd6 25.Bg4 Rcd8+/– 26.e5 Nb5 27.Ke3 Ne7 28.Bf3 Rd7 29.g4 f5 30.d4+– cd4 31.cd4 Red8 32.Ra4 Kf7 33.Rb4 Nc7 34.Nc3 fg4 35.Bb7 Ncd5 36.Nd5 Rd5 37.a6 Ra5 38.Rb2 Nf5 39.Ke4 g6 40.Rc2 Ra3+= 41.Re2 Nd6 42.ed6 Re8 43.Kd5 Re2 44.Rg1 h5=+ 45.Rh1 Rh3 46.d7? Ke7–+ 47.Bc6 Rhh2 48.Rh2? Rh2 49.Ke4 h4 50.Ke3 h3 51.Be4 Rb2 52.Bg6 g3 53.Be4 g2 54.Kd3 g1Q 55.d8Q Kd8 (55...Kd8 56.d5 Qd1 57.Kc3 Qd2 58.Kc4 Rb4 59.Kc5 Qc3 60.Kd6 Rb6#) 0–1. Fritz 6 – Fritz 8, 2003.

11.d3 Nd6 12.0–0 Qf6 13.Qb3 Bf3 14.Bf3 Ne5 15.Qd5 c6 16.Qd4 Nf3 17.gf3 Qe6 18.Rd1 Rfd8 19.Qg4 f5 20.Qg3 Nc4 21.Na3 Nb2 22.Rdb1 Nd3 23.Rb7 Qf6 24.Nb1 f4=+ 25.Qg4 a5 26.e4 Ne5 27.Qh5 Rd3 28.Ra2 Nf3 29.Kg2 Ng5 30.Rd2? f3 31.Kg1 Qf4 32.Re7 g6 33.h4 Nh3 34.Kf1 gh5 (34...gh5 35.Ra7 Qh2 36.Ra8 Kf7 37.Ra7 Ke6 38.Re7 Ke7 39.Rd3 Qf2#; 34...Rd2?? 35.Qh7 Kf8 36.Qg7#) 0–1. Fritz 6 – Fritz 8, 2003.

11.d3 Nd6 12.0–0 Qf6 13.Qb3 Bf3 14.Bf3 Ne5 15.Qd5 c6 16.Qd4 Nf3 17.gf3 Qe6 18.Rd1 Rfd8 19.Qg4 f5 20.Qg3 Qf6 21.d4+= f4 22.Qg4 fe3= 23.fe3 Nc4 24.Re1 Rd5 25.Kh1 Rg5 26.Qh3 Rf5 27.f4 Re8 28.Qg3 c5 29.Na3 Qc6 30.Kg1 Nd2 31.Red1 Rf6 32.Rd2 Rg6 33.Nc2 Rg3 34.hg3 Qf3 35.Kh2 Re6 36.Rg2 c4 37.g4 Kf7 38.Re1 Rh6 39.Kg1=+ Rh3 40.Ree2 Rg3–+ 41.Kh2 Qg4 42.Ref2 Rg2 43.Rg2 Qh5 44.Kg3 Qg6 45.Kf3 Qd3 46.Kg4 Qc3 47.Rh2 Qa5 48.e4 Qa4 49.d5 a5 50.e5 b5 51.Kf3 Qb3 52.Ne3 c3 53.Rh7 c2 54.Rh1 Qb1 55.Rb1 cb1Q 56.f5 a4 57.d6 a3 (57...a3 58.d7 Ke7 59.f6 gf6 60.d8Q Kd8 61.ef6 a2–+) 0–1. Fritz 6 – Fritz 8, 2003.

11.d3 Nd6 12.0–0 Qf6 13.Qb3 Bf3 14.Bf3 Ne5 15.Qd5 c6 16.Qd4 Nf3 17.gf3 Qe6 18.Rd1 Qg6 19.Kh1 Qf5 20.Qg4 Qf6 21.f4 Rad8 22.Rg1 c5 23.Qg5 Qg5 24.fg5 f6 25.gf6 Rf6 26.Kg2 c4 27.d4 Rdf8 28.f4 Rg6= 29.Kf1 Re6 30.Kf2 Rfe8 31.Re1 Nf5 32.d5 R6e7 33.d6 Nd6 ½–½. Fritz 6 – Fritz 8, 2003.

5.Bc3 d5

6.e3 0–0 7.Bd3 Re8 8.Ne2 d4 9.Nd4= Nd4 10.Bb4+= Bg4 11.f3 Bh5 12.Nc3 a5 13.Ba3+/– c6 14.0–0 Ne6 15.Rb1 Qc7 16.Qe1 Rad8 17.Qf2 Ng5 18.Bc5+– Rd7 19.Bd4 Nd5? 20.Qh4 Nc3 21.Bc3 Bg6 22.Qg5 Rd5 23.Qg4 Qe7 24.f4 h5 25.Qg3 h4 26.Qg4 h3 27.f5 hg2 28.Qg2 (28.Qg2 Red8 29.Bc4+–) 1–0. pierre – oppoht, internet, 2010.

6.e3 Bc3 7.Nc3 d4 8.Nce2 de3 9.de3 0–0 10.Qd8= Rd8 11.Rb1 b6 12.Nf3 Ne4 13.h3 Bb7=+ 14.g3 Nc5–/+ 15.Bg2 Na4 16.Ne5 Ne5 17.Bb7 Rab8 18.Bg2 a5 19.Nd4 c5 20.Nb5 Nc4 21.Be4 Nd2–+ 22.Ra1 Ne4 23.Ra4 Nd6 24.Nd6 Rd6 25.Ke2 Rbd8 26.Rb1 Kf8 27.c4 Ke7 28.Ra2 Kd7 29.Rb5 Kc7 30.Rb1 h6 31.Kf3 g6 32.Ke4 f5 33.Kf4 Rd2 34.Rba1–/+ Kc6 35.h4 h5 36.Kg5 R2d6 37.Rb1 Re8 38.Rab2 Kc7 39.Rc1 Re4 40.Kh6 Kd7 41.Rcb1–/+ Ree6 42.Kg5 Kc7 43.Kh6 Rd3 44.Rb3 Rd2 45.R3b2 Rb2 46.Rb2 Kc6 47.Ra2 Kd6 48.Kg5 Ke5 49.f3 Rd6 50.Re2=+ Rd1 51.Kg6 Rg1–/+ 52.Rf2 Rc1 53.Rb2= Rc4 54.Rb6 Rc3 55.Rf6 Re3 56.Rf5 Kd6 57.Kh5 a4 58.Rf6 Re6 59.Rf4+= a3 60.g4 Ke7? 61.Ra4+– Re3 62.f4 Kf6 63.Ra6 Kf7 64.g5 c4 65.g6 Kg7 66.Ra7 Kf8?? 67.Kh6 Rg3 68.f5 Rg4 69.f6 Rh4 70.Kg5 Re4 71.g7 Kg8 72.Ra8 Re8 73.Re8 Kf7 74.g8Q# 1–0. Fritz 8 – Fritz 5.32, 2003.

5.Bf6 Qf6

6.c3 d5 7.Qb3 Be6 8.Nf3 d4 9.Qb2 dc3 10.Nc3 0–0 11.e3 a5 12.d4 Ne7 13.Nd2 Rad8 14.Rc1 Qg6 15.h3 c6 16.Rh2 Nd5 17.Nd5 Bd5 18.g3 c5! 19.h4? cd4–+ 20.Rh3 de3 21.fe3 Be6 22.h5 Qg5 23.g4 Bg4 (23...Bg4 24.Rg3 Qh4–+) 0–1. Comet B50 – Fritz 8, 2003.

6.c3 d5 7.Qb3 Be6 8.Nf3 d4 9.Qb2 dc3 10.Nc3 0–0 11.e3 Rad8 12.Bb5 Bh3 13.Bf1 Ba5 14.Rc1=+ Bg4 15.Be2 Nb4 16.Qb1 Rfe8 17.0–0 Bf5 18.e4 Bg4 19.e5 Qf4 20.d4 Bf3–/+ 21.Bf3 Qd4 22.Nb5 Qe5 23.Bb7 Nd3 24.Rcd1 Qf5 25.Na7= Bb6 26.Nc6 Rd6 27.Nb4 Rb8 28.Nd3 Rb7= 29.Rfe1 Rb8 30.Qb5 Qb5–/+ 31.ab5 Ba5 32.Re5 f6 33.Re4 Rbd8 34.Re3 Bb6 35.Rg3 Rd5 36.h3 Rb5–+ 37.Re1?? Rb3 38.Rd1 c5 39.Kf1 c4 40.Ke2 Rdd3 (40...Rdd3 41.Rgd3 Rd3 42.Rd3 cd3 43.Kd3 Bf2–+) 0–1. Comet B50 – Fritz 5.32, 2003.

6.c3 d5 7.Qb3 Be6 8.Nf3 d4 9.Qb2 dc3 10.Nc3 0–0 11.e3 Bg4 12.Be2=+ Rfe8 13.h3 Bf5 14.0–0 Rab8 15.d4= Red8 16.Rfc1 Ba5 17.Qb5 Bc3 18.Rc3 Rd6 19.Bd3 Bd3 20.Qd3 a5 21.Rc5 b6 22.Rf5 Qg6 23.Qb5 Nb4 24.Nh4 Qe6 25.Re5+= Qd7 26.Qd7 Rd7= 27.Nf3 g6 28.Re4 f6 29.Ra3 Kf7 30.Rf4 Ke7 31.Rb3 b5=+ 32.ab5 Rb5 33.Re4 Kf7 34.Rh4 h5 35.Kf1 c5=+ 36.Rf4 c4 37.Rb1 c3–+ 38.Ne5 Re5! 39.de5 c2 40.Re1 Rd1 41.Rc4 Nd3 42.Ke2 Re1 (42...Re1 43.Kd3 c1Q 44.Rc1 Rc1–+; 42...Ne1?! 43.Rc2 Nc2 44.Kd1–+) 0–1. Comet B50 – Fritz 6, 2003.

4.Bb2 0–0

5.a3 Ba5 6.e3 d5 7.Qf3 Bg4 8.Qf4 c6 9.Be2+= Be2 10.Bf6 Qf6 11.Qf6 gf6 12.Ne2 Nd7 13.Nd4 Ne5 14.Nc3 Bc3= 15.dc3 Nc4 16.Nf5 Rfe8 17.h4 Re5 18.Nd4 a6 19.Nf3 Re7 20.h5 h6 21.Rh4 Re4=+ 22.Rh1 Rae8 23.a4 Ne5 24.Ne5 R8e5 25.Kd2= a5 26.Rhb1 Re7 27.Rb6 f5 28.Rab1 f4–/+ 29.Rb7 fe3 30.fe3 R7e5 31.Rf1= f5 32.Rc7 Re6 33.Rb1+= Re3 34.Rb8 Re8 35.Re8 Re8 36.Rc6 Re5 37.Rh6+– Kg7 38.Rg6 Kf7 39.c4! dc4 40.Kc3 Re2 41.Kc4 Re4 42.Kb5 Re5 43.Kb6 f4 44.Rg4 Rh5 45.Rf4 Ke6 46.Rg4 Kf5 47.Rg8 Ke4 48.c4 Kd4 49.c5 Kc4 50.c6 Kb4 51.c7 (51.c7 Rh6 52.Kb7+–) 1–0. smoothmovermovesagain – Salvatore, ChessWorld.net, 2006.

5.a3 Bc5 6.Nc3 Nc6 7.e3 d6 8.d4 Bb6 9.Bd3 Re8 10.Ne4 Ne4 11.Be4 Re4 12.Qf3 d5 13.Ne2 Bg4 14.Qg3 Be2 15.Ke2 Bd4 16.Bd4 Nd4 17.Kd2 Nf5 18.Qh3 Nd6 19.f3 Nc4 20.Kd3 Re3 21.Kd4 Qf6 22.Kd5 Nb6 23.Kc5 Qc3 24.Kb5 Qc4 25.Ka5 Qc5# 0–1. TD_6 – Oort, ICS rated light match, 1998.

5.a3 Be7 6.c4 c6 7.e3 d5 8.Nf3 Bg4 9.d3 Nbd7 10.Nbd2 dc4 11.dc4. bentengutama – desertheat, net–chess.com, 2002.

5.c3 Be7 6.d4 d5 7.Nf3 Ne4 8.Qd2?? (better is 8.e3+=) 8...Nd2–+ 9.Nbd2 Bf5 10.0–0–0 (10.e3 Nd7–+) 10...Qe8 11.e3 (11.Re1 Qa4 12.e4 de4 13.Ne4 Qa2–+) 11...Qa4 12.a3 (12.Ne1–+) 12…Qc2 0–1. Kissick,Philip H. E – Winges,Mark (1995), WS/O/096 ICCF, 2006.

5.e3 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 0–0).

5.c3 Ba5

6.Na3 d5 7.Nf3 Nbd7 8.d4 Re8 9.Qc2 c6 10.e3 Ne4 11.0–0–0 Ndf6–/+ 12.Ne5 Nd7 13.Nd7 Bd7–/+ 14.f3 Nd6 15.Bd3 g6 16.Rde1 b5 17.g4 b4 18.Nb1 Rc8 19.h4 c5 20.h5 cd4 21.hg6 dc3 22.gf7 Nf7 23.Bh7 Kf8 24.Nc3 Ne5 25.Bg6–/+ Qf6 26.Be8 Be8?? 27.Kb1?? Bg6 28.e4 bc3 29.Ba3? Kf7 30.Ka1 d4?? 31.Qb3 Qe6–+ 32.Qb7 Rc7 33.Qb5? Qb6?? 34.Qd5+– Qe6 35.Qa5 Rd7 36.Qb4 Qe8 37.Rh6 Qc8 38.Reh1 c2 39.Qb5 Qc7 40.Rh7 Bh7=+ 41.Rh7 Kg6 42.Rh1 Qc3?? 43.Bb2+– Qf3? 44.Rf1?? Qd1 45.Bc1 Qd3 46.Qe5 Qf1 47.Qe6 Qf6 48.Qe8 Qf7 49.Qe5?! Kh7 50.Kb2? d3 51.Qh2 Kg8 52.Qb8 Kg7 53.Qe5 Qf6 54.Bh6 Kf7 55.Qf6 Kf6 56.Bf4 d2 57.e5 Ke6 58.Kc2 d1Q 59.Kb2 Qd4 (59...Qd4 60.Kb3 Qb6 61.Kc3 Qc6 62.Kb2 Rb7 63.Ka3 Qa6#; 59...Qd3 60.Bd2 Rb7 61.Bb4 Rb4 62.Kc1 Rb1#) 0–1. Peter,Falco – Niedenthal,Robert (1960), Rhein Main op 9th, 2006.

6.c4 d6 7.e3 Bf5 8.Nf3 Nbd7 9.Be2 Re8 10.0–0 c6 11.d4 d5 12.Nbd2 Bd2 13.Nd2 dc4 14.Nc4 Nb6 15.Bd3 Bd3 16.Qd3 Nc4 17.Qc4 Nd5 18.Rfe1 a5 19.g3 Qd7 20.Kg2 Qf5 21.Re2 Qe4 22.Kg1 Qf3 23.Rae1 Nb4 24.e4?? (better is 24.a3!? Nd5 25.e4=) 24...b5 25.Qb3 Qb3 (better is 25...Nd3!?–+) 26.ab3+= Nd3 27.Rb1 Nb2 28.Rbb2 a4 29.ba4 ba4 30.Re3 f6 31.Ra2 Kf7 32.Kf1 Reb8 33.d5 cd5 34.ed5 Rd8 35.Rd3 g5 36.d6 Ra6 37.Rd4 a3 38.Rd3 Rad6 39.Rda3 h5 40.Ra7 R8d7 41.Kg2 Kg6 42.Rd7 Rd7 43.Ra6 Rd4 44.h3 Re4 45.Kf3 Rb4 46.g4 Rf4 47.Kg2 hg4–/+ 48.hg4 Rg4 49.Kh3 Rf4 50.Kg3 Kh5 51.Ra8 f5 52.f3 Kg6 53.Ra6 Kf7 54.Ra7 Ke6 55.Ra6 Ke5 56.Rg6 Kd4 57.Rg5? Ke3–+ 58.Kg2 Rf3 59.Rg8 Rf2 60.Kg1 Ra2 61.Rb8 f4 62.Re8 Kf3 63.Rb8 Ra1 64.Kh2 Ra7 65.Rb6 Rf7 66.Rd6? Kf2 67.Rd2 Ke3 68.Rd1 Ke2 69.Rb1 Rd7 70.Rb6 Rd3 71.Ra6 f3 72.Ra2 Rd2 73.Ra1 Rd1 74.Ra2 Rd2 75.Ra1 Ke3 76.Kg1 Rg2 77.Kh1? Kf2 78.Ra8?? Rg4 79.Ra2 Kg3 80.Kg1 Rb4 81.Rg2 Kf4 82.Rc2 Kg3 83.Rg2 Kf4 84.Rc2 Re4 85.Kf2 Re2?? 86.Re2= fe2 87.Ke2 Ke4 ½–½. Rush,Bradley – Moreno,Alejandro, SE–2011–0–00069, 2011.

6.e3 d5 7.h3 Bf5 8.Nf3 c5 9.Be2 Qb6 10.Ba3 Re8 11.0–0 Nc6 12.Qb3 Qb3 13.ab3=+ Ne4 14.Bb2 a6 15.d3 Nd6 16.Nbd2 Rac8 17.Rac1 Nb5 18.Rfe1 Bg6 19.Nh4 Ne7 20.d4+= cd4 21.Bb5 ab5 22.ed4 Bd3 23.Re3 Nf5 24.Nf5 Bf5+= 25.Nf1 Re3 ½–½. Rohner,Michael – Poestges,Wolfgang, desc–online.de, 2003.

5.c4

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

5.c4 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 Nc6 5.Bb2 0–0).

5.c4 d5 6.e3 Bf5 7.Nf3 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Nc6 7.Bb2 Bf5).

5.e3 d5

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

6.Nf3 Nc6 7.Be2 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 d5 6.Be2 0–0 7.Nf3).

6.Nf3 Re8 7.Be2 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 d5 6.Be2 Re8 7.Bb2).

6.Nf3 Re8 7.Be2 c5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 d5 6.Be2 c5 7.Bb2 Re8).

5.Nf3

5.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 0–0 5.Bb2).

5.Nf3 d5 6.e3 c5 7.Be2 Nc6 8.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 d5 6.Be2 c5 7.0–0 Nc6 8.Bb2).

5.Nf3 d5 6.e3 Re8 7.a3 Ba5 8.Be2 c5 9.0–0 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 d5 6.Be2 c5 7.0–0 Nc6 8.Bb2 Re8 9.a3 Ba5).

4.Bb2 Nc6

5.c3 Ba5 6.Nf3 d5 7.e3 0–0 8.Bb5 Ne7 9.0–0 c6 10.Be2 Bg4 11.d3 Qb6 (11...Qd6 12.Nbd2=) 12.Qc2 c5 13.c4 (13.Nbd2 Qd6=) 13...dc4 14.Qc4?? (better is 14.dc4 Rfd8 15.Nc3=) 14...Qb2–+ 15.Nbd2 Bd2 16.Rab1 (16.Rfb1 Qc3 17.Nd2 Qc4 18.dc4 Be2 19.Rb7 Rfd8–+) 16...Qa3 17.Nd2 (17.Rb7 Nc6 18.Qb3 Qb3 19.Rb3 Bb4–+) 17...Be2 18.Rfe1 (18.Rfc1 Bd3 19.Rb3 Bc4 20.Ra3 Be2–+) 18...Bd3 (18...Bd3 19.Qb3 Qb3 20.Rb3 Ba6–+) 0–1. Goldmund,Heike – Ropokis,Dimitrios (1615), FICGS, 2014.

5.c3 Be7 6.Nf3 d5 7.d4 0–0 8.Nbd2 Re8 9.e3 Bg4 10.Be2 Na5 11.0–0 c5 12.h3 Bh5 13.dc5 Bc5 14.Nd4 (14.Nb3 Be7+=) 14...Bg6 (14...Be2 15.Qe2 Rc8 16.N4b3+=) 15.N2b3 (15.Qa4 Rc8=) 15...Bd6 16.Na5 Qa5 17.Qb3 Ne4 Attacking the isolated pawn on c3 18.Rad1 a6 19.Kh1 (19.a3 Red8+=) 19...Rad8 20.Qb7 Rb8 (20...Qa2? 21.Ra1 (21.Ba6?? Rb8 22.Qc6 Qb2–+) 21...Nf2 22.Kg1 Qa1 23.Ra1+–) 21.Qc6 Qa2 22.Bc1 (22.Ba1 a5 23.Bg4 Be5–/+) 22...a5 (22...Be5 23.Qa6 Ra8 24.Qa2 Ra2 25.Bb5–/+) 23.Bf3 Rec8 24.Qa6 Ra8 (24...Qc4 25.Qc4 Rc4 26.Ne2–/+) 25.Qe2–/+ Nc3 (25...Qc4 26.Qc4 dc4 27.Nb5–/+) 26.Qa2+= Na2 27.Bd5 Nc3 28.Ba8 Nd1 29.Rd1 Ra8 30.Nb5 Bb4 31.Rd7 a4 32.Ba3+= Ba3 33.Na3 f6 34.Kh2 Kf8 35.Kg3 Rb8 36.Ra7 Be8 37.Nc2 Rb6 ½–½. Weiser – Kmiecik,Klaus, BdF, 1988.

5.e3 a6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 a6).

5.e3 d5 6.Nf3 Bg4 7.a3 Bd6 8.Be2 a6 9.d4 0–0 10.Nbd2 b5 11.0–0 Re8 12.h3 Bf5 13.Nh4 Bd7 14.Nhf3 Ne4 15.Re1 Qe7 16.Bd3 b4 17.a4 Nc3 18.Bc3= bc3 19.Nb1 Bb4 20.e4 Qd6 21.ed5 Qd5 22.Re8 Be8 23.Na3 Na5 24.Qe2 Ba4 25.Be4 Qe6? 26.Ng5+– Qe7 27.Bh7 Kf8 28.Qh5 Ke8 29.Nf7! Rb8 30.Bf5 Ba3 31.Ra3! (31.Ra3 g6 32.Qg6 Qf7 33.Ra4+–) 1–0. Pleschke,Helmut – Hoogendoorn,Albert, IECG, 2000.

5.a3 Ba5

6.c4 0–0+= 7.Nc3 d6 8.Nf3 Bf5 (8...Ne5 9.e3+=) 9.e3 Re8 (9...Ne5 10.d3+=) 10.Be2= Ne5 11.Ne5 (11.d3 Qd7=) 11...de5+= 12.0–0 Qe7 (12...c5 13.d3+=) 13.d4 ed4 (13...Rad8 14.Bd3 ed4 15.ed4+=) 14.Qd4= Rad8 (better is 14...c6!?=) 15.Nd5+/– Qe6 16.Nf6 (16.Qa7 Nd5 17.cd5 Qd5+/–) 16...Qf6 17.Qf6 gf6 18.Bd4?? (better is 18.Rfd1+/–) 18...Rd4!–+ 19.ed4 Exploits the pin 19...Re2 20.d5 Bb6 21.a4 (21.Rac1 Bc2–+) 21...Rd2 22.a5 Bc5 23.a6 (23.Kh1 Bf2 24.Rad1 Rb2–+) 23...ba6 24.Ra6 (24.Kh1–+) 24...Bd3 25.Rc1 (25.Rf6 Bc4 26.Rc1 Bd5–+) 25...Rf2 (worse is 25...Bf2 26.Kh1 Bc4 27.Rc6 Bd5 28.R6c2 Rc2 29.Rc2–+) 26.Kh1 Be4 (26...Bf1 27.h4 Bg2 28.Kh2 Bd5 29.Kg3–+) 27.Rc6 Rg2 (27...Rg2 28.Rc5 Rg3) 0–1. Kleine,Franz Josef – Strobel,Thomas, Regensburg op, 1996.

6.c4 0–0+= 7.e3 d6 +=.

6.c4 0–0 7.Nf3 d5 8.e3 Bf5 9.Nc3 d4 10.Nb5 de3 11.fe3 Ne4 12.Nc3 Nc3–+ 13.Bc3 Bc3 14.dc3 Qf6 15.Qc1 Rae8 16.Kf2 Ne5 17.h3 Nf3 18.gf3 Re6 19.Rg1 Rfe8 20.e4 Qh4 21.Rg3?? Rg6 (21...Rg6 22.Ke2 Rg3–+) 0–1. thotares (1785) – jaskier (2130), internet, 2007.

6.e3 d5 =.

5.a3 Be7

6.e3 0–0 7.Nf3 d5 8.d4 Re8 9.Bd3 Bg4 10.Nbd2 Qd7 11.0–0 Bf5 12.Qe2 Bd3 13.Qd3 b5 14.a4 (14.Qb5? Rab8 15.Qd3 Rb2–+) 14...ba4 15.Ba3 Nb4 16.Bb4 Bb4 17.Ne5 Qe6 18.Ra4 c5 19.c3 c4 20.Qc2 Bd6 21.Ra6 Qe7 22.f4 Bc7 23.e4 Qd8 24.ed5 Nd5 25.Rf3 Qc8 26.Qa2 Qd8 27.Qc4 (< 27.Nec4 A) 27...Bf4?! 28.Ra7 Bh2 29.Kh2 Qh4 30.Kg1 Nc3 31.Rc3 (31.Ra8?? Ne2 32.Kf1 Qh1 33.Kf2 Qg1) 31...Qd4 32.Re3 Ra7 33.Qb2=; B) 27...Nc3 28.Qa1 Ne2 29.Kf1 Bf4–/+) 27...Bb6 28.Kf1 Rc8 29.Qb3 f6 30.Nec4 Kh8 31.Ra1 Bc7 32.g3 a5 33.Qb5 Rb8 34.Qa4 Qe7 35.Kg1 Qe6 36.f5 Qf7 37.Qd1 Qh5 38.Qf1 (< 38.Na5 Ba5 39.Ra5 Nc3–/+) 38...Qg4 39.Re1 a4 40.Ne3 Ne3 41.Rfe3 Re3 42.Re3 a3 43.Qc4 Bd6 44.Re6 Qd1 45.Nf1 Bf8 46.Re2 Qb1 47.Rf2 ½–½. Baer,Werner – Trokenheim,Marek, TT–12, 2004.

6.Nf3 +=.

4.Bb2 d5

5.a3 Bc5 6.d4 Bd6 7.Nd2 0–0 8.Ngf3 Re8 9.c4 c6 10.e3 Bf5 11.Be2 Nbd7 12.0–0 Ne4 13.Re1 Ndf6 14.Ne4 Ne4 (worse is 14...Re4 15.c5 Bc7 16.Bd3+=) 15.Qb3 Rb8 16.Rac1 Re6 17.cd5 cd5 18.Ne5 (18.Bd3!?=) 18...Rh6 19.g3?? (19.h3 Qh4 20.Rf1 Bh3 21.Nf3–+ (21.Qd5?? Be6 22.Bh5 Rh5 23.Rc8 Rc8 24.Qe6 Qh2)) 19...Be6 (better is 19...Be5 20.Bd3 Bc7–+) 20.f3 Ng3?? 21.Ng4?? Ne2 22.Re2 Rh3 23.Rg2 Rf3 24.Qd1 Bg4 25.Rg4 Re3 26.Rc2 Qe7 27.Bc3 Re8 28.Rcg2 g6 29.Bd2 Re4 30.Re4 Qe4 31.Rf2 Qd4 32.Qf3 f5 33.Bc3 Qe4 34.Qh3 Bc5 35.Qg3 Bf2 36.Qf2 0–1. Eckhoff,Karlheinz – Neubauer,Anton (2040), Graz op–A, 2004.

5.a3 Bd6 6.e3 0–0 7.h4 Nbd7 8.Rh3 c5 9.c4 Ne5–+ 10.Bc3? Bh3 11.gh3 dc4 12.f4 Ne4 13.Bb2 Qh4 14.Ke2 Qf2# 0–1. kurt5561 – Alissa, ChessWorld.net, 2005.

5.c3 Bd6 6.e3 0–0 7.d3 Re8 (7...Nbd7 8.Nf3–/+) 8.Be2–/+ c5 9.Nf3 Nc6 10.0–0 Bf5 11.Nbd2 b6 (11...b5 12.g3–/+) 12.Re1+= Bc7 13.Rc1 (13.Qb3 h6+=) 13...b5 (13...h6 14.g3+=) 14.c4 (better is 14.e4 Bg6 15.ed5 Qd5 16.c4 bc4 17.Nc4+=) 14...Rb8?? (better is 14...bc4 15.dc4 d4–/+) 15.cd5+– Qd5 (15...Nb4 16.e4 Bg4+–) 16.e4 Qa2 17.Bf6 gf6 18.ef5 c4 (18...Ba5 19.Rf1 Bb4 20.Ne4+–) 19.dc4 Bf4 (19...b4 20.Ra1 Qb2 21.Rb1+–) 20.cb5 Nb4 (20...Ne5 21.Ne4 Red8 22.Nf6 Kf8 23.Qc2 Qc2 24.Rc2 Nf3 25.gf3+–) 21.Bc4 Qb2 (21...Qa3 22.Ra1 Qc3 23.Ra7 Re1 24.Qe1 Bd2 25.Nd2+– (25.Qd2?! Qc4 26.h3 Qb5+–)) 22.Re8 (better is 22.Rb1 Re1 23.Qe1 Bd2 24.Nd2 Qe5 25.Qe5 fe5 26.Rb4 Rd8+–) 22...Re8 23.Rb1 (better is 23.g3 Bh6+–) 23...Qc3 (23...Qc2 24.g3 Bh6 25.Kg2+–) 24.g3 (better is 24.Qa4 Bd2 25.b6 Rd8 26.ba7 Qc4 27.Nd2 Qd4+–) 24...Be5 (24...Bd2 25.Nd2 Nd3 26.Rb3+–) 25.Qb3 (better is 25.Qa4 Rd8+–) 25...Qb3 26.Bb3 1–0. Herciu,Ana_Maria – Morar,Maria_Magdalena, CN Juniori Voineasa – F10, 2009.

5.Nc3 0–0 6.e3 Re8 7.h3 a6 8.Be2=+ Be6 9.Nf3 b5 10.0–0 Nc6 11.Nh2 Qd7 12.Bf3 Be7 13.Re1 Ne5–/+ 14.a3 Nc4 15.Qc1 Bd6 16.d3 Nb2 17.Qb2 Rab8 18.Qc1 c5 19.e4 de4 20.de4 Be5 21.Rd1? Qc7 22.Qe3 Bh2 23.Kf1 Bf4 24.Nd5 Bd5 (24...Bd5 25.Qe2 Bc4–+) 0–1. Cools,Eric – Devis,Wim, Beveren, 1995.

5.Nf3 Nc6 6.e3 0–0 7.Be2 Ne4 8.0–0 Bg4 (-->1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 d5 6.Be2 0–0 7.Nf3 Bg4 8.0–0 Ne4).

5.a3 Be7

6.d3 c5 7.Nd2 0–0 8.Ngf3 Nc6 9.e4 de4 10.Ne4 Ne4 11.de4 Bg4 12.Qd8 Rad8 13.Be2 Rfe8 14.Rd1 Bf3 15.Bf3 Rd1 16.Bd1 Bd6 17.f3 a6 18.0–0 Be5 19.Be5 Ne5 20.Be2 Rd8 21.Rd1? Rd1–/+ 22.Bd1 Nc4 23.a4 Nb2 (24.Be2 Na4–+) 0–1. cccmember – hal1958, HCL–T093 playchess.de, 2003.

6.e3 0–0 7.h3 Bf5 8.Nf3 Nbd7 9.Be2 c6 10.0–0 Qc7 11.d3 Rfe8 12.Nbd2 Rad8 13.Re1 a5 14.d4 Ne4 15.Ne4 Be4 16.Rc1 Nf6 17.c4= dc4 18.Rc4 Bd5 19.Rc3 Ne4 20.Rc1 h6 21.Ne5 Bd6 22.Nf3 g5 23.Bf1 f6 24.Qd3 Rd7 25.Rc2 g4 26.hg4 Rg7 27.Nd2?? Nd2 28.Qd2=+ Rg4 29.f4 Qg7 30.Qa5= Bf4?? 31.ef4+– Re1 32.Qe1 f5 33.Re2 Be4 34.Qb4 Qc7 35.Qb3 Bd5 36.Qc2 Be4 37.Qc4 Bd5 38.Qd3 Be4 39.Qc3 Bd5 40.Re8 Kf7 41.Re5 Qd7 42.Bc1 Kf6 43.Qc5 Qd8 44.a4 h5 45.a5 h4 46.Qc2 Be4 47.Qa4 h3 48.Qc4 Bd5? 49.Qd3 ½–½. Queenwomen – Old Sisyphus, ChessWorld.net, 2005.

5.e3

5.e3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 d5 5.Bb2).

5.e3 Nc6 6.Nf3 a6 7.c4 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Nc6 7.Bb2 a6).

5.e3 Be6 6.Nf3 Nc6 7.Be2 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 d5 6.Be2 0–0 7.Nf3 Be6).

5.e3 0–0

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

6.Nf3 Nc6 7.Be2 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 d5 6. Be2 0–0 7.Nf3).

6.Nf3 Bg4 7.Be2 c5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 d5 6.Be2 c5 7.Bb2 Bg4).

5.Nf3 0–0

6.e3 c5 7.c3 Ba5 8.Be2 Qb6 9.Qc2 Bf5 10.d3 c4 11.0–0?? cd3–+ 12.Bd3 Bd3 13.Qd3 Qb2 14.Nbd2 Qc3 15.Qb1 Nc6 16.Qb7 Rab8 17.Qa6 Bb6 18.Rfc1 Qa5 19.Qa5 Na5 20.Nd4 Rbc8 21.Nb5 Rc1 22.Rc1 Nc4 23.Nc4 dc4 24.Rc4 h6 25.h3 Rd8 26.g4 Rd2 27.a4 Nd7 28.Rc8 Kh7 29.Nc7?? Ra2 30.Nd5 Ra4 31.Ra8 Ne5 32.Nb6=+ Nf3 33.Kg2 Ne1 34.Kg3 Nd3?? 35.Nd5 Ra2 36.f3 a5 37.Nb6 Nc5 38.Rc8 Nd3 39.Rc4 Ne5 40.Ra4 Ra4 41.Na4 Kg6 42.Kf2 f5 43.gf5 Kf5 44.f4 Nd3 45.Ke2 Nc1 46.Kf3 g5 47.e4 Kf6 48.f5 Ke5 49.Ke3 Nb3 50.Nc3?? Nc5–/+ 51.f6 Kf6 52.Kd4 Nb3 53.Kd5–/+ Nd2 54.Kd6 Ne4 55.Ne4 Kf5 56.Nc5 Kf4 57.Ke6 Kg3 58.Kf5 Kh4 59.Nb3 h5 60.Na5–/+ g4 61.hg4= hg4 62.Nc4 g3 63.Ne3 Kh3 64.Kf4 g2 65.Ng2 Kg2 ½–½. chevin – utk, Live Game Caissa's Web, 2004.

6.e3 Re8 7.c4 Nc6 8.cd5 Nd5 9.Be2 Qe7 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 Nc6 5.Bb2 0–0 6.e3 d5 7.cd5 Nd5 8.Nf3 Re8 9.Be2 Qe7).

4.Bc3 Bc3

5.dc3 0–0–/+ 6.Na3 (6.Nd2 d6–/+) 6...d5 7.c4 (7.e3 Qe7 8.Nb1 Rd8–/+) 7...c5–+ 8.e4?? (Better is 8.c3 d4 9.Nb1–+) 8...Qa5 9.Qd2 Qa3 10.cd5 Ne4 11.f3 Nd2 12.Kd2 Rd8 13.Bc4 Nc6 14.h3 Ne5 15.Rh2 Nc4 16.Ke2 Qe3 17.Kf1 Nd2# 0–1. jbaum – sharaf, ChessWorld.net, 2002.

5.Nc3 c5 6.e3 0–0 7.Nf3 d5 8.d4 Bg4 9.Rb1 Bf3 10.Qf3?? (better is 10.gf3 Qa5 11.Qd2 cd4 12.Qd4–/+) 10...Qa5–+ 11.Bd3 Qc3 12.Ke2 cd4 13.Rb5 Nc6 14.Qf5 (14.Rb3 Qa5 15.Rb7–+) 14...de3 15.fe3 Rae8 16.Rd5 g6 (16...g6 17.Rc5 Re3 18.Ke3 Re8 (18...gf5?! 19.Rc3 Nd5 20.Kd2=) 19.Kf4 Qd4 20.Kg3 gf5 21.Rf5 Re3 22.Rf3 Qe5 23.Kh3 Qf4 24.g3 Qg4 25.Kg2 Qf3 26.Kh3 Re5 27.Bh7 Kh7 28.Re1 Rh5#) 0–1. Diviak,Peter – Voros,Gellert (1995), Stara Lubovna SVK, Boys Ch U18, 2012.

5.Nc3 Nc6 6.e4 Nd4 7.e5 Ng8 8.Nf3+= Nc6 9.Bc4 Nb4 10.d4 d5= 11.Bb3 Bg4 12.0–0 h5 13.h3 Bf3 14.Qf3 f6 15.Rfe1 Nc6 16.ef6 Kf7 17.Bd5 Kf8 18.fg7 Kg7 19.Qf7 Kh6 20.Re6 Nf6 21.Rf6 Kg5 22.Qg7 Kh4 23.Qg3# 1–0. CSLewis – easydigital, ChessWorld.net, 2005.

5.Nc3 0–0

6.e3 c5 7.Nf3 d5=+ 8.Be2 Nc6 9.0–0 Re8 10.Rb1 d4 11.ed4 cd4 12.Na4 b6 13.Re1 Bf5 14.Nb2 Qd5 15.Bc4 Qc5 16.Bb3 Nb4 17.Na4=+ Qd6 18.Nb2 Re1–/+ 19.Ne1 Re8 20.a3 Nbd5 21.Nc4 Qc7–/+ 22.Nb2 Nf4 23.f3 Ne2 24.Kh1–/+ Re4 (24...Re4 25.g4 Ng4 26.fg4 Bg4–+; 24...Qc5 25.a4–/+) 0–1. Mertens,Sylvia (1680) – Milde,Lars (2165), T15–08.02 ETC, 2003.

6.Nf3 d5 7.e3 Re8 8.Be2 Ne4 9.Nb5 c5 10.d3 Qa5–/+ 11.c3 Nf2 12.Kf2 Qb5 13.d4 c4–+ 14.Rb1 Qc6 15.Ne5 Qf6 16.Bf3 Nc6 17.Nc6 bc6–+ 18.Rf1 Qh6 19.Kg1 Qe3 20.Kh1 Qc3 21.Qa4 Bd7 22.Bd5 cd5 23.Qd7 Rf8 24.Qd5 Rad8 25.Qc6 Qd4 26.Rbc1 Rc8 (26...Rc8 27.Qb7 Rce8–+) 0–1. coloplayah (1990) – laufchess (1875), net–chess.com, 2005.

6.g3 d6 7.Bg2 c6 8.e3 Be6 9.Nf3 Nbd7 10.0–0 Bc4 11.d3 Be6 12.Ng5 Qe7 13.f4 Bg4 14.Bf3 Bf3 15.Nf3 Qe3–+ 16.Kg2 Qc5 17.Ne4 Ne4 18.de4 Rfe8 19.Re1 Nf6 20.Nd4? Ne4 21.Nb3?? Qb4 22.Qd4 Qd4 23.Nd4 Re7?? 24.Nf3? Rae8–+ 25.Kf1 Nf6 26.Re7 Re7 27.Re1 Kf8 28.Re7 Ke7 29.Ke2 b5 30.h3 Ke6 31.Ke3 h6 32.Nd4 Kd5 33.Nf5 Kc4 34.Nd6–/+ Kc3 35.Nc8? a5 36.Na7 Nd5 37.Ke4 Nb4 38.h4 a4 39.a3 Nc2 40.Nc6 Na3 0–1. tanto – aberntzen, net–chess.com, 2001.

6.e3 d5

7.Bd3 c5 8.Nf3 Re8 9.0–0 Nc6 10.Bb5 Ne4 11.Ne4= de4 12.Bc6 bc6 13.Ne1 c4 14.Qe2 Qb6 15.a4 Rb8 16.Rd1 c3 17.d3 Ba6 18.Ra1 Qc5 19.Qg4 Rb4 20.Qd7 Ra8 21.h3 Rab8 22.Qc7 Rb2 23.a5 f5 24.Kh2 Qd5 25.Qa7? Qd6–+ 26.Kg1 c5 27.d4 cd4 28.Qd4 Qc6 29.f3 Bf1 30.Kf1 R2b4 31.Qe5 R4b5–+ 32.Qf4 Ra8 33.fe4 fe4 34.Kg1 Rba5 35.Ra5 Ra5 36.Qb8 Kf7 37.Qf4 Ke8 38.Qb8 Kd7 39.Qg8 Qf6 40.Qb3 Ra1 41.Qd5 Kc7 42.Qc5 Kb7 43.Qb5 Ka8 44.Qd5 Ka7 45.Qc5 Ka6 46.Qc4 Kb6 47.Qb4 Kc6 48.Qc4 Kd6 49.Qb4 Kd5 50.Qb5 Ke6 51.Qe8 Kd6 52.Qb8 Ke7 53.Qc7 Ke8 54.Qc8 Kf7 55.Qc7 Kg6 56.Qg3 Kh6 57.Kh2 Rd1 58.Kg1 Qg5 59.Qg5 Kg5 60.Kf1 Kh4 61.Ke2 Rd2 62.Kf1 Kg3 63.Kg1 Rf2 64.h4 h5 65.Nf3 Rg2 66.Kf1 Kf3 67.Ke1 Rg1# 0–1. Fritz 6 – Fritz 8, 2003.

7.d4 Re8 8.Bd3 c5 9.Nf3 c4 10.Be2 b5 11.a3 a6 12.0–0 Ne4 13.Ne4 de4 14.Nd2 Qg5 15.Kh1 Bb7 16.Bh5 Nd7=+ 17.f4 Qh6 18.Bg4 Nf6 19.Kg1 Rab8 20.Bf5 Rbd8 21.Qe2 c3 22.Nb3 Bd5 23.Na5 Qh4 24.a4 Rb8 25.ab5 Rb5 26.Rfb1 Reb8 27.Rb5 ab5 28.Bh3 Qh6 29.Rb1= b4 30.Qa6 Ra8 31.Rb4 g5–/+ 32.Qd6 gf4 33.Rb8= Rb8 34.Qb8 Kg7 35.Qf4 Qf4 36.ef4 e3 37.Kf1 Be4 38.Ke2 Nd5 39.Nc4 Bc2 40.Ne3 Bd1 41.Nd1 Nf4 42.Ke3 c2 43.Kd2 cd1B 44.Kd1 Nh3 45.gh3 Kf6 46.Ke2 Ke6 47.h4 Ke7 48.Ke3 Kd7? 49.Ke4 Ke6 50.d5 Kd6 51.h5 f5 52.Kf5+= Kd5 53.Kg5 Ke4?? 54.Kh6 Kf5 55.Kh7 Kf6 56.h3 Kf7 57.h6 Kf8 58.Kh8 Kf7 ½–½. Crafty 19.01 – Fritz 8, 2003.

7.d4 Re8 8.Nf3 Qd6 9.Bd3 Bg4 10.Rb1 Ne4 11.Nb5 Qb6 12.0–0 a6–/+ 13.Na3 Qa5 14.Qc1 Bf3 15.gf3 Nd2 16.Rb7 Nf1 17.Bf1 c5 18.dc5 Qc5 19.Qb2 Nc6 20.Qb6 Qc3 21.Rc7 Qa3 22.Qc6 Qa2 23.Ra7 Rad8 24.Qc7 d4 25.Bc4 Qa1 26.Kg2 Kh8 27.Bf7 Rc8 28.Qb7 Rf8–/+ 29.Be8? de3–+ 30.Qc8 ef2 31.Kf2 Qd4 32.Ke2 Qe5 33.Kf2 Qh2 34.Ke1 Qg3 35.Kd2 Qf2 36.Kd1 Qf3 37.Kd2 Qf2 38.Kc3 Qa7 39.Qe6 Qc7 (39...Qc7 40.Bc6 Rc8–+) 0–1. Fritz 5.32 – Fritz 8, 2003.

7.d4 Re8 8.Nf3 Bg4 9.Be2 Nbd7 10.Rb1 b6 11.h3 Be6 12.0–0 Ne4 13.Qe1 Ng5 14.Qd2 Nf3 15.Bf3 c6 16.Ne2 Qf6 17.c4 dc4 18.Bc6 Rac8 19.d5 Bf5 20.Rbc1 Red8 21.Bd7 Rd7 22.Rfd1 b5 23.Qd4 Qe7 24.d6 Qe6 25.Nf4 Qe4 26.Qd5 Qd5 27.Nd5 Rc5 28.Ne7 Kf8 29.Kf1 Be6 30.Ke2 b4 31.Rc2 c3–+ 32.Ke1 Ke8 33.Rd4 a5 34.Kd1? Ba2!! 35.Ra2 b3 36.Re2 c2 37.Rc2 bc2 38.Ke2 c1Q (38...c1Q 39.g4 Rc2 40.Kf3 Qh1 41.Kg3 Qg1 42.Kf4 Qf2 43.Ke4 Qg2 44.Kd3 Rb2 45.Rb4 Rd6 46.Nd5 Rd5 47.Kc4 Rb4 48.Kc3 Qd2#) 0–1. Fritz 5.32 – Fritz 6, 2003.

7.Nf3 Ne4 8.Nd4 Nc3 9.dc3 c5 10.Nb3 c4 11.Nd4 Nc6 12.Be2 Qa5 13.Qd2 f5 14.h4 f4–/+ 15.0–0 fe3 16.Qe3 Nd4 17.Qd4 Be6 18.Rfe1 Rad8 19.Bf3 Rf6 20.Re5 b6 21.Rd1 Qa2 22.Rde1 Bf7 23.Bd5 Bd5 24.Rd5 Rdf8 25.Rd7 Qc2 26.Ree7 Qc1 27.Kh2 Qh6 28.Qg4 Rg6 29.Qc4+– Kh8 30.Ra7 Qh5 31.f3?? Rg2= 32.Kg2 Qf3 33.Kh2 ½–½. Crafty 19.01 – Fritz 6, 2003.

7.Nf3 Ne4 8.Ne4 de4 9.Nd4 c5 10.Nb5 Nc6 11.Nc3 Re8 12.a3 Qg5 13.Qe2 a6 14.h3 b5–/+ 15.h4 Qd8 16.h5 h6 17.Qd1 Qg5 18.Qb1 Bd7 19.Qb2 Rad8 20.Rb1 Bg4 21.d3 ed3–+ 22.Bd3 Bf5 23.Kf1 Bd3 24.cd3 Ne5 25.Qc2 Nd3 26.Kg1 c4 27.Na2 Re3!! 28.Rd1 Re1 29.Re1 Ne1 30.f4 Qc5 (30...Qc5 31.Qf2 Nf3 32.gf3 Rd1 33.Kg2 Qf2 34.Kf2 Rh1–+; better is 30...Nf3! 31.Kf1 Qf4 32.Qe2 Ne5 33.Kg1–+) 0–1. Fritz 8 – Fritz 6, 2003.

7.Nf3 Ne4 8.Ne4 de4 9.Nd4 c5 10.Nb5 Be6 11.d4 a6 12.Nc3 cd4 13.Qd4?? Qa5–+ 14.Qa4?? Qc3 15.Kd1 Rd8 16.Kc1 Qa1# 0–1. xyzzy – marekt, ChessWorld.net, 2005.

7.Nf3 Bg4 0–1. ajeffries (2075) – jboger (1985), net–chess.com, 2009.

5.Nc3 d5

6.d4 0–0 7.e3 c5 8.dc5 Nc6 9.Bb5 Qa5 10.Qd2 Ne4 11.Ne4 Qb5 12.Qd5 Nb4 13.Nc3 Be6 14.Qd1 Qc5 15.Nge2 Rad8 16.Qc1 Ba2 17.Ra2 Na2 18.Na2 Qd5 19.Nac3 Qg2= 20.Rg1 Qh2 21.Qb2 Rd7 22.Ne4+= f6 23.Nc5 Rdf7 24.Qa2 Re8 25.Nb7 Qc7 26.Na5 f5 27.Nd4 f4 28.Nac6 fe3=+ 29.fe3 Kh8 30.Qd5 Re3 31.Kd2 Re8 32.Kc1 h6 33.Qb5 Rf6 34.Rf1 Rf1 35.Qf1 Qb7 36.Qf5 Qa6 37.Kb2 Re3 38.Qf8= Kh7 39.Qf5 Kg8 40.Qd5 Kh8 41.Nb5 Qb7 42.Qd8 Kh7 43.Nca7 Re4 44.Qd3+= g6 45.c4 Re1 46.Kc3 h5= 47.Qd4 Qf3 48.Kb4 Rd1 49.Qc5 Rb1 50.Ka5 Qb7 51.Nc6 h4 52.Ne5 Qa8 53.Kb6 Qb8 54.Kc6+= Qe8 55.Nd7 h3 ½–½. Mosley,Gene – Hobert,Sebastian, 2005.

6.d4 0–0 7.Nf3 c6 8.Rb1 (8.e3 Bg4=) 8...Qe7 (better is 8...Ne4!? 9.Rb3 Nc3 10.Rc3 Qa5–/+) 9.e3= Bf5 10.g3 b6 11.Bg2 Nbd7 12.0–0 h6 13.Nh4 Bh7 14.Rb3 Rfc8 15.Ne2 (15.Bh3 Re8=) 15...Rab8 16.a4 (16.Nf3 c5=) 16...Ne4 17.Nf3 Qd6 18.Bh3 Rd8 19.Bd7 Rd7 20.Ne5 Rdb7 21.f3 Nf6 22.Nf4 Nd7 23.Nd7 Qd7 24.Qe2 c5 25.c3 Qa4 26.Qd1 (26.Rb2 cd4 27.ed4 Qc6–/+) 26...Qd7 (better is 26...cd4!? 27.ed4 Rd8–/+) 27.Qd2 ½–½. Baer,Cy (1895) – Zornack,Andre (1985), RSS4D easy–49, 2007.

6.d4 0–0 7.Nf3 Re8 8.h3 Nc6 9.e3=+ a6 10.Bd3 Nb4 11.0–0 Ne4 12.Qe1 a5 13.a3= Na6 14.Na2 c6 15.Nd2 Nc7 16.c4 Qg5 17.Kh1 Re6 18.Rg1 Rh6 19.Kh2 Qh4 20.Bf1? Nf2–+ 21.Nf3 Ng4 22.Kh1 Qe1 23.Re1 Nf2 24.Kh2–/+ Ne4 25.Rc1 Re6 26.Re1 h6 27.cd5 Nd5 28.Bc4 Nef6 29.Bd5 Nd5 30.e4 Nf6 31.Nc3 Re8 32.Re3 Be6 33.Rge1 Kf8 34.Ne5 Rad8 35.Rd1 Bb3 36.Rb1 a4 37.Ne2? Kg8 38.Rb2? Ne4 39.Re4–/+ f6 40.Nc6 bc6 41.Re8 Re8 42.Rd2 Re3–+ 43.Nc1 Bc4 44.Rb2 Ra3 45.Rb8 Kh7 46.Rc8 Bd5 47.Ra8 Ra1 48.Nd3 a3 49.Nb4 Be4 50.Ra6 Rb1 51.Nc6 Bc6 52.Ra3 Rb2 53.Rg3 Rd2 54.Rg4 h5 55.Rg3 Rd4 56.Re3 Rd2 57.Rg3 h4 58.Rg4 g5 59.Kg1 Kh6 60.Kf1 f5 61.Rb4 Bg2 62.Ke1 Rd6 63.Rb3 Kh5 (63...Kh5 64.Kf2 Rd2 65.Kg1 f4–+) 0–1. Nguyen Phuong Vy – Vu T Minh,Tam, Nu Tieu hoc Dong Thap, 2000.

6.d4 c5 7.e3 Qa5 8.Bb5 Bd7 9.Bd7 Nbd7 10.Qd2 Rc8 11.Nge2 cd4 12.ed4 0–0 13.0–0 Rfe8 14.Qd3 Rc6 15.Rab1 Qc7 16.Rb3 a6 17.a4 Nb6 18.Rfb1 Rb8 19.Qf3= Rd6 20.Qg3 Nc4 21.Nf4 Nd2?? 22.Nfd5!+– Nd5 23.Nd5 Qd8 24.Rb7 Nb1 25.Rb8 Qb8+= 26.Ne7 Kf8 27.Nf5 Rd8 28.Qg7 Ke8 29.Qg8 Kd7 30.Qf7 Kc6 31.Ne7 Kb7?? 32.Qf3+– Kb6 33.a5 Kb5 34.Qb3 Ka5 35.Nc6# 1–0. Gossmann,Gera – Kuntze,Stephan, GER–chT U16 Koerbecke, 2000.

6.e3 Bg4 7.Be2= Be6 8.Nf3 0–0 9.0–0 Nc6 10.h3 Ne7 11.Nd4 c5=+ 12.Ne6 fe6 13.Rb1 b6 14.d3 Ng6 15.Qe1 Rb8 16.d4 c4 17.f3 a6 18.Rb2 b5–/+ 19.a3 Qd6 20.Ra2 Rbe8 21.f4 Ne7 22.Qh4 Nf5 23.Qf2 b4 24.ab4 Qb4 25.Na4 Ne4 26.Qe1 Qe1 27.Re1=+ Rb8 28.g4 Nfd6 29.Bf3 Ra8 30.Be4 Ne4 31.Rea1 g5 32.Nb6 Rad8 33.Ra6 gf4=+ 34.ef4 Rf4 35.Ra8 Rff8 36.Rd8= Rd8 37.Ra7 Nc3 38.Re7 Ne2–/+ 39.Kg2 Nd4 40.c3 Nb5 41.Re6 Nc3–+ 42.Re5 Rd6 43.Nc8–/+ Rd8 44.Ne7?? Kf7–+ 45.Nf5 Kf6 46.Re3 Ne4 47.Nd4 Ra8 48.Rf3 Ke5 49.Nc6 Kd6 50.Nd4 Kc5 51.Ne6 Kb4 52.Nc7 Ra2 53.Kg1 Ra5 54.Ne6 c3 55.Nd4 Kc4 56.Nc2 Kb3 57.Nd4 Kb2 58.Re3 Ra1 59.Kg2 Rd1 60.Nf3 c2 (60...c2 61.Re2 Kb1 62.Rc2 Kc2–+) 0–1. mic (2155) – abosnjakovic (2425), net–chess.com, 2008.

6.g3 d4–/+ 7.Nb1 Qd5 8.Nf3 Nc6 9.Bg2 Qb5 10.0–0? Qb2–+ 11.Na3 Qa3 12.d3 0–0 13.Nd2 Bd7 14.Nb1 Qb2 15.Nd2 Rab8 16.c4 dc3 17.Nc4 Qb4 18.Rc1 b5 19.Ne3 Qc5 20.Qb3 b4 21.Nc4 Nd4 22.Qd1 Be6 23.e3 Nb5 24.Qe2 Bc4 25.dc4 Na3 (25...Na3 26.Rfd1 Nc4–+) 0–1. Lang,L – Grehl,Siegfried, corr SOK–92–92, 1992.

6.e3 0–0

7.Bd3 c5 8.Nf3 Nc6 9.Rb1 (9.Rb1 Re8 10.0–0=+). miquelstone – michail, ChessWorld.net, 2005.

7.Bd3 Re8 8.Nf3 c5 9.Ne2? (Better is 9.0–0=+) 9...c4–+ 10.Bh7 Kh7 11.Ng5 Kg8 12.h4 d4 13.h5 de3 14.fe3 Nd5 15.Nf7 (15.Nf3–+) 15...Kf7 16.Nd4 c3 17.0–0 Kg8 18.Qf3 cd2 (Better is 18...Re7 19.Rad1 Nf6 20.dc3 Qe8–+) 19.Qf7 Kh8 20.h6 Rg8 21.h7 Re8 22.Nf5 Bf5 23.Rf5 Ne3 24.Qb7 Nf5 (25.Qb4 Qd5–+) 0–1. guest1731 – guest88, ICC, 2003.

7.d4 Re8 8.Nf3 a6 9.Bd3 Bg4 10.h3 Bf3 11.Qf3 c5 12.0–0 c4 13.Bf5 Nc6 14.Rfb1 b5 15.a3 Qd6 16.Bg4 Ne7 17.Ne2 Ne4 18.Qf4 Qf4 19.Nf4 Rab8 20.Rb2 g5 21.Ne2 f5 22.Bf3 Rf8 23.c3 h6 24.Rab1 Nc8 25.a4 Ncd6 26.Kf1 Kg7 27.Ke1 Kg6 28.g3 h5 29.h4 f4 30.ef4 gf4 31.Nf4 Rf4=+ 32.gf4 Nc3 33.Rc1 Re8 34.Kd2 Na4 35.Rbb1 Ne4 36.Kc2 Nec3 37.Re1 Re1 38.Re1 b4 39.Kd2 b3 40.Rg1 Kh6 41.f5 b2 42.Kc2 Nb5 43.Bd5 Na3 44.Kd2 b1Q 45.Rb1 Nb1 46.Kc1 Nb6 47.Bb7 Nc3 48.Ba6 Ne2 49.Kb2 Nd4 50.f6 Na4 51.Kc1 c3 52.Bd3 Nb6 53.f7 Nd7 54.f4 Kg7 55.Bc4 ½–½. jasa – glumard, ChessWorld.net, 2002.

7.Nf3 c5 8.Be2 d4 9.ed4 cd4 10.Nb1 Nc6 11.0–0 Bf5 (11...Bf5 12.Re1 Re8=+; 11...Re8 12.Re1=+). tanto (1740) – qwertzuiop (2000), net–chess.com, 2003.

7.Nf3 c5 8.g3 d4 9.ed4 cd4 10.Nb5 Re8–+ 11.Be2 Bh3 12.Nbd4 Nc6 13.Nc6 bc6 14.Ng5? Qd5 15.Nf3 Qf3 16.Rg1 Ng4 17.d4 Qf2 18.Kd2 Qe3 (18...Qe3 19.Ke1 Qc3 20.Qd2 Re2 21.Ke2 Re8 22.Kd1 Qa1 23.Qc1 Nf2 24.Kd2 Qd4#) 0–1. Galagus – dmt, playchess.de, 2002.

4.Bc3 Bc5

5.a4 0–0 6.e3 d5 7.d4 Bd6 (7...Bd6 8.Bd3 Bg4–/+) 0–1. Weizenkeim,Willi (1800) – Irmer,Friedrich (2075), remoteschach.de, 2004.

5.d4 Be7 6.d5 =+.

5.e3 0–0 6.Nf3 d6 7.d4= Bb6 8.Be2 Nc6 9.0–0 Ne4 10.Bb2 Bg4 11.Nbd2 Bf3 12.Bf3 Nd2 13.Qd2 a5 14.Bc6 bc6 15.c4 a4 16.Ba3 Ba5 17.Qc2+/– h5 18.Rab1 Qg5 19.Bc1 h4 20.e4 Qg6 21.f4 Bb6 22.c5 dc5 23.dc5 Bc5? 24.Qc5+– Qe4 25.Ba3 Qd5? 26.Qd5 cd5 27.Bf8 Kf8 28.Rbc1 Rc8 29.Rc5 c6 30.Rfc1 Ke7 31.Rc6 Rc7 32.Rc7 Ke6 33.R1c6 Kf5 34.Rf7 Ke4 35.Re6 Kd4 36.Rd7 a3 37.Re5 Kc3 38.Red5 Kb2 39.Rd3 Ka2 40.Rb7 g6 41.h3 Ka1 42.Ra3 1–0. tanto (1605) – ofi, net–chess.com, 2002.

5.d4 Bb6

6.d5 Ne4 7.e3 Nc3 8.Nc3 Ba5 9.Nge2 c5 10.g3 b6=+ 11.Bg2? Ba6 12.0–0 Bc3 13.Nc3 Bf1 14.Qf1 d6 15.Qb5 Qd7 16.Rd1 Ke7 17.Qe2 a6 18.e4 f6 19.f4 Re8 20.e5 fe5 21.fe5 de5?? 22.Qe5?? Kf8=+ 23.Qf4 Qf7 24.Qd6 Qe7?? 25.Rf1+– Kg8 26.Qe7 Re7 27.d6 Rea7 28.Bd5 (28…Rf7 29.Rf7+–) 1–0. Graham,Victor – Brown,Matt, IECG Cat–C, 1996.

6.e3 0–0 7.Bd3 d5 8.Nd2 c6 9.Ngf3 Bg4 10.0–0 Bc7 11.Qb1 b6 12.Ne5 Bh5 13.f4 Nbd7 14.Nc6+/– Qe8 15.Ne5 Ne5 16.fe5 Ng4 17.Qb3 Qd8 18.Rae1+– Bg6 19.e4 Be4? 20.Ne4 de4 21.Be4 Rc8 22.Bf5 (22.Bf5 Nh6 23.Bc8 Qc8 24.d5+–) 1–0. gtate (1910) – sacmaniac (1880), net–chess.com, 2006.

6.e3= 0–0 7.Nf3 d5 8.Be2 Nc6 9.0–0 Bf5 10.Nbd2 h6 11.h3 a6 12.Nb3 Ne4 13.Bb2 (13.Bb2 Qf6 14.Rb1=). Adamowski – Zamarski, corr 1. AMM Poland, 1991.

6.e3 d5 =.

6.Nf3 0–0 7.e3 Nc6 8.d5 Ne7 9.Bf6+/– gf6 10.Be2 Ng6 11.0–0 d6 12.Qd3 c6 13.Rd1+/– Bc7 14.Nbd2 Bd7 15.Rab1 Rb8 16.Qa3 a6 17.Ne4 Bf5+/– 18.Qa4 Qe8?? 19.Nf6+– (19.Nf6 Kg7 20.Ne8 Rfe8 21.dc6+–) 1–0. Wall,Bill – Martha, internet, 1996.

6.Nf3 Ne4 7.e3 =.

4.Bc3 Nc6

5.a3 Ba5 6.e3= d5 7.a4 0–0=+ 8.Bb5 Bb6 9.Bc6 bc6=+ 10.a5 Bc5 11.d4 Bd6 12.Nd2 Ba6 13.Ne2 Qd7 14.0–0 Ng4 15.Nf3=+ Rae8 16.Ng3? Bf1 17.Qf1 f6 18.Rb1 Rb8–+ 19.Rc1 Rb5 20.e4 Bg3 21.fg3 de4 22.Nh4 g5 23.Nf5 Rf5 24.Qe2 Rf2 25.Qe4 Qf5 26.Qf5 Rf5 27.Rb1 Rb5 28.Re1 Rd5 29.h3 Nh6 30.Re7 Nf5 31.Rc7 Ng3 32.Kh2 Ne2 33.Bb4 Re8 34.Rc6 Nf4 35.Rf6 Kg7 36.Rc6 Re2 37.Rc7 Kg6 38.Ra7 Rg2 39.Kh1 Rd4 40.Ra6 Kf7 41.Ra7 Ke6 42.Ra6 Kd5 43.Be1 (43.Be1 Rd1 44.c4 Ke5 45.Re6 Ke6 46.a6 Re1#) 0–1. ronnieg (2525) – TheSkyIsTheLimit (2720), fics, 2001.

5.a3 Bc3 6.Nc3 d5 7.e3 d4 8.Na4 0–0 9.Bd3 de3 10.de3 Ne5 11.Be2 Qe8 12.Nc5 (12.Qd4!?=+) 12...Qc6–/+ 13.Ne4?? (Better is 13.Nd3–/+) 13...Ne4–+ 14.f3 Qc3 15.Kf1 Nd2 16.Kf2 Rd8 17.Qc1 Ndc4 18.Bc4 Nc4 19.Kg3 Rd2 20.Ra2 Qe5 (21.f4 Qe3 22.Kh4 Qf4 23.Kh5 Qg4#) 0–1. guest417 – crafty, ICC, 1999.

5.e3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bc3).

5.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bc3).

5.Bf6 Qf6–/+ 6.c3 d5 7.a3 Ba5 8.e3=+ 0–0 9.Bb5 a6 10.Bc6=+ Qc6 11.Ne2 Qf6 12.Nf4 c6–/+ 13.0–0 Bf5 14.Qa4 Bc7 15.Nh5 Qd6 16.Ng3 Bd3 17.Re1 b5 18.Qg4 f5 19.Qd4 Bc2 20.Qh4 c5 21.Nh5 h6 22.f4 c4 23.Ra2 Bb3 24.Rb2 a5 25.Rb3? cb3–+ 26.d4 a4 27.g4 Qg6 28.g5 Bd8 29.Kh1 hg5 30.fg5 Qg5 31.Qh3 Qh4 32.Qh4 Bh4 33.Rg1 Rf7 34.Kg2 Re8 35.Kf3 g5 36.Nf4 Rd7 37.h3 Kh7 38.Nd3 Rg7 39.Ne5 g4 40.hg4 fg4 41.Ke2 Rh8 42.Ng4 Rf8 43.Rg2 Rf2 44.Rf2=+ Bf2 45.Nf2= Rg1 46.Nd1 Rg2 ½–½. Klatt – Kmiecik,K, corr (year?).

5.Bb4 Nb4

6.a3 Nbd5 7.g3 d6 8.Bg2 0–0 9.Nf3 Bf5 10.d3 Re8 11.0–0 c6 12.c4 Nc7 13.Nbd2 d5 14.cd5 Ncd5 15.e4 Nc3 16.Qb3 Ne2 17.Kh1 Be6 18.Qc2 Nd4= 19.Nd4 Qd4 20.Nf3 Qb6 21.Rab1 Qc7 22.Rfc1 h6 23.d4 Rab8 24.e5 Nd5 25.Nd2 Nb6 26.Ne4 Bd5 27.a4 Nc4 28.Rb3 Na5 29.Rc3+= Nc4? 30.Rc4+– Bc4 31.Qc4 Rbd8 32.Nd6 Re7 33.h4 Rdd7 +–. tanto (1730) – monicker (2055), net–chess.com, 2003.

6.c3 Nc6 7.d4 d5 8.Nd2 0–0 9.Qc2 Ne4 10.Ne4 Bf5 11.Qb3 Be4 12.Qb7 Na5 13.Qb2 Rb8 14.Qc1 Nc4 15.e3 Qh4 16.Ne2 (16.Nh3!?+=) 16...Nb2–/+ 17.Ng3 Bg2! 18.Rg1 (18.Bg2 Nd3 Double attack) 18...Bf1 19.Kf1 f5 (19...Qh2 20.Rh1 Qf2 21.Kf2 Nd3 22.Kf3 Nc1 23.Rac1+–) 20.Rb1 Qh3 21.Ke2 Nc4 (21...Qh2 22.Rh1 Qg2 23.Rb2+–) 22.Qf1 Qg4 (22...Qh2?! 23.Rh1 Rb1 24.Qb1= (worse is 24.Rh2 Rf1 25.Kf1 Rf6–+)) 23.f3 Qg5 24.f4 Qg4 25.Kd3 Rb1 26.Qb1 Qf3 27.Re1 Re8 28.Qc1 h5 0–1. Schalkwijk,Peter H (2015) – Glaser,Karel (2165), H J Mostert Memorial Webserver Open, 2006.

6.c3 Nc6 7.Nf3 0–0 8.g3 Re8 9.Bg2 Qe7 10.e3 d5 11.Qc2 Ne5 12.0–0 Nf3 13.Bf3 Bh3 14.Bg2 Bg2 15.Kg2 h5 16.f3 c5 17.Na3 a6 18.Qb2 h4 19.g4 Nh7 20.h3 Ng5 21.Nc2? b5 22.a4? Rab8 23.Qa2? Qd7?? 24.ab5=+ ab5 25.Qa3 Qc7 26.f4 Ne4 27.Qc1 g5 28.d3 Nc3–+ 29.Qd2 d4! 30.Rae1 Re7?? 31.ed4=+ Re1 32.Ne1? cd4–+ 33.Nf3 Qd6 34.Ng5–/+ Qd5 35.Nf3=+ b4 36.f5= Re8 37.Rf2?? Re3–+ 38.Qc2? b3 39.Qb2 Nd1 40.Qc1 Nf2 41.Kf2 Qf3 (41...Qf3 42.Kg1 Qg3 43.Kh1 Qh3 44.Kg1 Rg3 45.Kf2 Rg2 46.Ke1 Qh1#) 0–1. mic (2135) – wbreitk (2570), net–chess.com, 2008.

6.c3 Nbd5 7.Nf3 Qe7 8.e3 d6 (8...0–0 9.c4 Nf4 10.g3=) 9.Be2 0–0 10.0–0 Nb6 11.Qc2 g6 12.d3 Bd7 13.c4 d5 14.c5 Ba4 15.Qb2 Nbd7 16.Qb7 Qc5 (16...Nc5 17.Qb4 Rab8 18.Qa3+–) 17.d4= Qb6 18.Qa6 Bc2 19.Nc3 Qa6 20.Ba6 Rab8 21.Rfc1 Rb2 22.Ne1 Bf5 23.Bd3 Be4 (23...Rfb8 24.Bf5 gf5 25.Nf3+=) 24.f3 Bd3 25.Nd3 Rb6 26.Rab1 Re8 27.Rb6 Nb6 28.Kf2 c6 29.Ne5 c5 30.Nb5 c4 31.Nc6 Kg7 32.Nca7 Na4 33.Rb1 Re6 34.Nc7 Re7 35.Nab5 h6 (35...g5 36.Ra1+=) 36.g4+/– g5 37.Rb4 c3 38.Ke2 (38.Ra4?? c2 39.Nd5 c1Q (39...Nd5?! 40.Rc4 Ne3 41.Rc5=) 40.Ne7 Qc2 41.Kg3 Qa4–+) 38...Nb2 39.Rb3 c2 40.Kd2 Nc4 41.Kc2 Kg6 (41...Ne3 42.Kc3 Nf1 43.a4 Re3 44.Kb4 Rb3 45.Kb3+–) 42.a4 1–0. chess_research (2230) – marekt (1995), gameknot.com, 2014.

6.e3 Ne4 7.a3?? (better is 7.c3 Qh4 8.g3+=) 7...Qf6–+ 8.c3?? (better is 8.Nf3 Qa1 9.ab4–+) 8...Qf2 0–1. Hal1958 – DarianTomb, playchess.de, 2005.

6.Nf3 0–0 7.c3 Nbd5 8.d4 Re8 9.e3 d6 10.Bd3 a6 11.0–0 b5 12.Nbd2 Nc3–/+ 13.Qc2 Ncd5 14.a3 Bb7 15.e4 Nf4 16.Rae1 Nd3 17.Qd3 Nd7 18.e5 de5 19.de5 Nc5 20.Qd8 Rad8–+ 21.Rc1 Ne6 22.Nb3 Bf3 23.gf3 Rd3 24.Nc5 Nc5 25.Rc5 Rf3 26.Rc7 Ra3 27.Re1 b4 28.Rb1 a5 29.f4 b3 30.Rb7 a4 31.f5 Ra2 32.Ra7 b2 33.Ra4 Ra4 34.Rb2 h5 35.Rf2 Re5 0–1. milanista – slagveld (1645), internet, 2007.

4.Bc3 Be7

5.d3 0–0 6.Nf3 d5 7.g3 c5 8.e3 Nc6 9.a3 Bg4 10.Bg2 Qd7 11.0–0 (11.0–0 b5 12.Nbd2–/+; 11.h3 Be6=+). babai (1640) – balokrop, internet, 2008.

5.d4 0–0 6.Qd3 d5 7.f3 a6 8.e4 Re8 9.e5 Nfd7 10.Be2 b6 11.Nh3 Nf8 12.0–0 Bh3–/+ 13.gh3 Ne6 14.f4 c5 15.Nd2 cd4 16.Bb2 Bc5 17.Kh1 Nc6 18.Rg1? Nf4–+ 19.Qg3 Do you see the mate threat? 19...Ng6 20.Rg2 Nce5 21.Nb3 Nc6 22.Rf1 Re3 23.Rf3 Rf3 24.Bf3 Qh4 25.Qc7? Re8 26.Rg3 Nf4 27.Qc6 Re1 28.Rg1 Rg1 29.Kg1 0–1. KlausMueller – hal1958, playchess.de, 2002.

5.d4 d5 6.Nd2 0–0 7.e3 Nbd7 8.Bd3 Nb6 9.Rb1= Re8 10.Ngf3 Bd6 11.Ne5 c5 12.dc5 Bc5 13.0–0 Qc7 14.Nef3 Ne4 15.Bd4 Bd6 16.h3 Bd7 17.Be4 de4=+ 18.Ng5 Bf5 19.f3 ef3 20.Qf3 Bg6 21.Nge4 Be5 22.c3 ½–½. Riepe,Bernhard – Fischer,Ronald, DESC, 1999.

5.Nf3 Nc6 6.e3 d5 7.Bb5 0–0 8.0–0 Qd6 9.d3 h6 10.a3 Nd7 11.Nbd2 a6 12.Bc6 bc6 13.h3 Rb8 14.Nd4 (14.e4 Re8=) 14...Nb6+= 15.Qf3 Na4 16.Ba5 c5 17.N4b3 Be6 18.c4 dc4 19.dc4 Rbd8 20.Rab1 Bd7 21.Rfd1 Bc6 22.Qh5 Rfe8 23.Nf1 Qe6 24.Nbd2 (24.Rd8 Rd8 25.Nbd2 Bd6+=) 24...Rd3 (24...Bf6 25.Qg4–+) 25.Rb3? (better is 25.Ng3!?–/+) 25...Rb3–+ 26.Nb3 Qc4 27.Nfd2 Qd3 28.Qg4 Bd6 29.Rc1 Re6 30.Qh4? (30.e4–+) 30...Rg6 31.e4 f5 32.Re1 c4 33.Nc1 Qa3 34.Nc4 (34.g3 Qc5 35.e5–+) 34...Qf3 35.Ne3 (35.Kf1 Qg2 36.Ke2 Be4 37.Kd2–+) 35...Be4 36.Kf1 Rg2 37.Ng2 Qg2 38.Ke2 Qf3 39.Kf1 Nb2 0–1. pawnraider (1980) – hanzelpeter (2300), gameknot.com, 2015.

5.f4 c5 6.Nf3 0–0 7.d3 d5–/+ 8.g3 Ng4 9.Bd2 Bf6 10.c3 Re8 11.Bg2 Qe7 12.Qc1?? Qe2# 0–1. Sabicas,Eli – Rozental,Ella, SN–2007–0–00042, 2007.

5.g3 0–0 6.Bg2 d5 7.e3 c5 8.Ne2 Nc6 9.0–0 Bg4 10.f4 Qd7 11.Bf3 Bh3 12.Rf2 Ng4–+ 13.Bg4 Bg4 14.d4 Qe6 15.Qd2 Rae8 16.Na3 a6 17.Bb2 Bf6 18.c3? b6 19.Re1 Qe3 20.Qe3 Re3 21.Bc1 Re4 22.Bb2 Rfe8 23.Kf1 cd4 24.cd4 Bh3 25.Kg1 Bd4 26.Bd4 Nd4 0–1. tanto – cyborgkiller (1800), net–chess.com, 2002.

5.g3 d5 6.Bg2 d4 7.Bb2 c5 8.e3 Bg4 9.Qc1 Nc6–/+ 10.Bc6 bc6 11.f3 Rb8 12.fg4 Qd5–+ 13.Qd1?? Qh1 (13...Qh1 14.Kf1 Qh2–+; 13...Rb2?! 14.Nf3–+) 0–1. Ritschel,Stephan (1935) – Taulien,Hans_Juergen (2350), RSX9E – A00 – Sokolsky–1, 2002.

5.d3 d5

6.Nf3 c5 7.e3 Nc6 8.Nbd2 0–0 9.Be2 Re8 10.0–0=+ Bd6 11.Nb3 b5 12.Rb1 a5 13.Nbd2 Rb8 14.Ba1 h6 15.c4=+ dc4 16.dc4 b4 17.Ne1 Ne5 18.f3 Qc7 19.e4 Ng6 20.g3 Bg3 21.hg3= Qg3 22.Ng2?? Nf4–+ (22...Nf4 23.Rf2 Nh3 24.Kh1 Nf2 25.Kg1 Nd1 26.Rd1 Bh3–+) 0–1. Puls,G – Bruhs, corr DDR, 1988.

6.Nf3 Nc6 7.e3 0–0 8.Be2 Re8 9.0–0 Bd6 10.Nbd2 Bg4 11.Nd4 Be2 12.Qe2?! Nd4 13.Bd4 c5 14.Bb2 Nd7 15.f4 Qh4 16.g3 Qe7 17.Rae1 Bc7 18.Qg2 Ba5 19.Rf3 c4 20.dc4 dc4 21.e4! Qd6 22.Bc3 Bc3 23.Rc3 Qd4 24.Rce3 Nf6 25.c3 Qc5 26.Kh1! Rad8 27.e5 Ng4 28.R3e2 b5 29.Ne4 Qb6 30.h3 Nh6 31.Nd6 Re7 32.Qd5 Red7? (32...Kf8!) 33.e6!! Rd6 34.ef7 1–0. Pietrzak,Wieslaw – NN, Krakow 2000.

5.e3 0–0

6.d4 Nc6 7.Bd3 Re8 8.Ne2 d5 9.0–0 Nb4 10.Bb4 Bb4 11.Nd2 c6 12.c4 Be6 (12...Qc7 13.cd5 Nd5 14.a3+=) 13.c5= b5 (13...g6 14.Nf3 b6 15.a3=) 14.a4 a6 15.Nf3 Ba5 16.Ne5 Ng4 17.Nc6 Qc7 18.Ne5 Ne5 19.de5 Qe5 (19...b4!?+=) 20.ab5+/– ab5 21.Bb5 Bc7 (21...Reb8 22.Nd4 Bc7 23.g3+/–) 22.g3 Reb8 23.Ra8 Ra8 24.Nd4 Bh3 25.Re1 Ba5 (25...h5 26.Bd3 Ba5 27.Qa4+–) 26.Qa4 Qe4 (26...h5!?+/–) 27.Bf1+– Bd7? (27...Qe8 28.Ra1 Bf1 29.Kf1 Qc8+–) 28.c6 (28.Qd7?! Be1 29.c6 Qe8+/–) 28...Be8 29.Ra1 Qe7 (29...Ra7 30.Qb5 Bb6 31.Ra7 (31.Qb6?! Ra1 32.Qb8 h5+=) 31...Ba7 32.Qb7+–) 30.Qb5 Qc7 31.Bg2 Ra7 (31...Qd8 32.Qb7 Rb8 33.Ra5 Rb7 34.cb7 Qa5 35.b8Q Qa1 36.Bf1+–) 32.Qd5 Bb6 (32...Ra6 33.Qe4 Qc8 34.Nf5+–) 33.Ra7 Qa7 (33...Ba7 34.Nb5 Qc6 35.Qc6 Bc6 36.Bc6 Bc5+–) 34.Qe5 Kf8 (34...Qa1 35.Bf1 Qa8+–) 35.Nf5 f6 36.Qd6 Kf7 37.Bd5 Kg6 38.Nh4 1–0. chess_research (2310) – hahaha (2025), gameknot.com, 2014.

6.Nf3 Ne4 7.Bb2 d5 8.d3 Bf6 9.c3 Nd6 10.Ba3 Nc6 11.d4 Re8 12.Bd3 Nc4 13.Qc2 Na3 14.Na3 Qe7 15.Nb1 h6 16.0–0 g6 17.Nbd2 Be6 18.Rab1 Na5 19.c4 b6 20.cd5 Bd5 21.e4 Bb7 22.e5 Bg7 23.Rfc1 Rac8 24.Ne4 (24.Qa4 f5+=) 24...Red8 25.Qe2 Nc6 26.Ba6 Ba6 27.Qa6 Qd7 28.Qb7 Nd4 29.Nd4 Qd4 30.Nd6 Rb8 31.Qc7 Qd5 32.Rd1 Qa2 33.Ra1 Qe6 34.f4 a5 35.Rdb1 Qd5 36.Kh1 Rf8 37.Rb5 Qd4 38.Rf1 a4 39.Qc1 Ra8 40.Rd1 Qf2 41.Rb2 Qc5 42.Rc2 Qa5 43.Rcd2 a3 44.Qa1 a2 45.Rd5 Qa4 46.R5d4 Qb3 47.R4d3 Qe6 48.Nb5 Qc4 49.Nd4 Rfd8 50.R1d2 f6 51.e6 f5 52.e7 0–1. Mosley,Gene – Brunner,Hermann, DESC, 2005.

5.e3 d5

6.Nf3 0–0 7.Be2 c5 8.0–0 Nc6 9.a4 Be6 10.Na3 Qc7 11.Bb2 Rad8 (11...a6 12.d3+=) 12.c4 (12.Nb5 Qc8+=) 12...Qd7 13.Ne5 Ne5 14.Be5 dc4 15.Nc4 Bc4 16.Bc4 Qd2 17.a5 (17.h3 b6+=) 17...Qd1 (17...Qb4 18.Qc2 Rd2 19.Qc1+=) 18.Rfd1 Rd1 19.Rd1 Rd8 20.Rd8 Bd8 21.a6 ba6 22.Bf6 Bf6 23.Ba6 Kf8 24.Kf1 Ke7 25.Ke2 Be5 26.g3 Ke6 27.Kd3 Kd6 28.Kc2 Kc6 29.Kb3 ½–½. chess_research (2210) – bishop_ben (2110), gameknot.com, 2014.

6.Nf3 0–0 7.Be2 c5 8.0–0 Nc6 9.a4 Bf5 10.Na3 –/+.

6.Nf3 0–0 7.Be2 c5 8.0–0 Nc6 9.a4 h6 10.Na3 Ne4 11.Bb2 Bf6 Black plans d4 12.Bf6 Qf6 (worse is 12...gf6 13.d3 Nc3 14.Qd2 Ne2 15.Qe2=) 13.c4 d4 14.Nb5 de3 15.fe3 Qe7 16.d3 Nf6 17.e4 b6 (17...Be6 18.Nc3+=) 18.Qd2= Bg4 19.Rae1 Bf3 20.Bf3 Qe5 21.Kh1 Rad8 22.Nc3 Qd6 23.Nb5 Qe7 (worse is 23...Qd3 24.Qd3 Rd3 25.e5 Rf3 26.gf3+/–) 24.Nc3 Nd7 25.Nd5 Qe6 26.Bd1 Nde5 27.Kg1 f6 28.Re3 Kh7 29.Rf4 Nd4 30.a5 Qd6 31.Rh3 b5 32.cb5 Nb5 33.Rfh4 f5 34.ef5 (34.Rg3 Nd4+=) 34...Rf5 (34...Qd5!? 35.Rh6 Kg8–/+) 35.Ne3+= Rf7 Exerts pressure on the isolated pawn 36.Bb3 Rff8 0–1. chess_research (2285) – forsetinn (2320), gameknot.com, 2014.

6.Nf3 0–0 7.Be2 c5 8.0–0 Nc6 9.Bb2 Re8 10.Bb5 (10.Nc3 d4 11.ed4 cd4–/+) 10...Qb6–/+ 11.Bf6 Bf6 (11...gf6?! 12.Nc3=; 11...Qb5?! 12.Nc3 Qa6 13.Be7 Ne7 14.Rb1=) 12.Bc6 (12.Nc3!? Bc3 13.Bc6 Ba1 14.Be8–/+) 12...Qc6–+ 13.d4 b5 (13...Bf5 14.Nbd2–+) 14.c3 (14.Nbd2 cd4 15.Nd4 Bd4 16.ed4 Bf5–/+) 14...a5 (14...Ba6 15.Re1–/+) 15.a3 Rb8 16.Nbd2 c4 17.Qc2 h6 (17...g6 18.Ne5 Be5 19.de5–/+) 18.h3 Bd8 (18...g6 19.Ne5 Be5 20.de5–/+) 19.Rfe1 (19.Ne5 Qe6+=) 19...Qf6 20.e4 Qg6 21.Ne5 (21.Kh1 Bc7 22.Qb1 de4 23.Re4 Bd7+=) 21...Re5 22.de5 Bh3 23.g3 Bb6 24.Nf3?? (better is 24.Nf1–/+) 24...Qg3 25.Kh1 Qg2 0–1. libelle_3 (1860) – forsetinn (2330), gameknot.com, 2014.

5.Nf3 0–0

6.d3 c6 7.Nbd2 d5 8.g3 Bg4 9.Bg2 Qd7 10.Ne5 Qf5?? 11.h3+– Bh5 12.g4 Ng4 13.hg4 Bg4 14.Ng4 Qg4 15.Bf3 Qe6 16.Rg1 f6 17.e4 de4 18.de4 Rd8 19.Qe2 Qf7 20.Nb3 Nd7 21.0–0–0 Ne5 22.Be5 fe5+/– 23.Kb1 a5 24.Rd8 Bd8 25.Rd1 a4 26.Nc5+– b5 27.Nd7 Qe7 28.Bg4?? Qb4–+ 29.Ka1 Qc3 30.Kb1 a3 31.Be6 Kh8 32.Kc1 Bg5 (32...Bg5 33.Qe3 Be3 34.fe3 Qe3 35.Rd2 Re8–+; 32...Ba5 33.Qb5 cb5 34.Ne5 Qb2) 0–1. coloplayah (2015) – agentry (1895), net–chess.com, 2005.

6.e3 d5 7.Be2 c5 8.0–0 Nc6 9.d3 d4 10.Bb2 Re8 11.Nbd2 de3 12.fe3 Ng4 13.Nc4 Bf8 14.Nfd2 Ne3–/+ 15.Ne3 Re3 16.Bf3 Nd4 17.Be4 Be6 18.Rf2 c4 19.Kh1 Nc6 20.Bc6= bc6 21.Nf1 Rh3 22.gh3 Qb6 23.Qe1 Qb2 24.c3 Qb6 25.d4 c5–/+ 26.Rd1 cd4 27.cd4 Bd5 28.Kg1 Qg6 29.Ng3 Bd6 30.Qc3 f5! 31.Kf1 f4 32.Ne2 Re8 33.Ng1 Re3 34.Qc2 Qe6 35.Qa4 c3 36.Rc2 f3 37.Kf2? Qe4 38.Kf1 Re2! 39.Re2 fe2 40.Ne2 Qh1 41.Kf2 Qh2 (41...Qh2 42.Ke3 Qh3 43.Kf2 Qg2 44.Ke1 Bg3 45.Ng3 Qg3 46.Ke2 Bf3 47.Kd3 Bd1 48.Kc4 Ba4 49.d5 c2 50.Kb4 Qf4 51.Ka5 Qc4 52.d6 Qb5#) 0–1. Wall,Bill – Benassi,Aspasio, corr Carel CF–01, 2005.

6.e3 d5 7.Be2 c5 8.0–0 Nc6 9.d4 Ne4 10.Be1 Bf5 11.Nc3 cd4 12.ed4 (12.Ne4 Be4 13.ed4 Re8–/+) 12...a6 (12...Bf6 13.Rb1 Qd7 14.Rb5 Nc3 15.Bc3+=) 13.Rb1 b5 14.Ne5 Rc8 15.Nc6 Nc3 16.Ne7 Qe7 17.Bc3 Rc3 Exerts pressure on the backward pawn 18.Re1 (18.Bd3 Bd3 19.cd3 Qa7–/+) 18...Bc2 (18...Rc2?! 19.Bd3 Qe1 20.Qe1 Bd3 21.Qa5=) 19.Qd2 Bb1 20.Qc3 Re8 21.Qb3 Bf5 22.Kf1 (22.Qd5? Bd3! 23.Qe5 Qd8 (23...Be2?! 24.Re2 Qe5 25.de5+=) 24.Bd3 Re5 25.Re5 Kf8–+) 22...g6 23.Qd5 Qc7 24.h3? (better is 24.f3–+) 24...Qc2 25.f4 Re3 26.Qd8 Kg7 27.Qh4 Re2! 28.Re2 Bd3 29.Qe7 Be2 (29...Qe2?! 30.Qe2 Be2 31.Ke2–/+) 30.Qe2 Qc1 31.Qe1 Qf4 32.Qf2 (32.Kg1 Qd4 33.Kh2–+) 32...Qf2 33.Kf2 f5 (33...Kf6 34.Ke2–+) 34.Ke3 Kf6 35.g3 (35.h4 Ke6 36.Kf4–+) 35...Ke6 36.Kf4 (36.h4 Kd5 37.Kd3 b4–+) 36...Kd5 37.h4 (37.Ke3 g5 38.Kd3 f4 39.gf4 gf4–+) 37...Kd4 38.g4 b4 39.gf5 gf5 40.Kf5 a5 0–1. chpot (1935) – bollewillem (2245), gameknot.com, 2014.

5.Nf3 d5

6.g3 0–0 7.Bg2 Nc6 8.0–0 Re8 9.d3 Bg4 10.Nbd2 Bc5 11.Rb1 Bb6 12.a4 Qe7 13.Bf6 Qf6 14.c4 d4 15.h3 Bh5 16.Ne4 Qe7=+ 17.c5 Ba5 18.Rb7+= Bb4 19.Nd6 Red8 20.Qc2 a5 21.Nb5 Rac8 22.Rc1 Bf3 23.Bf3+– Ne5 24.Bg2 Nd7 25.Na7 Qc5 26.Nc8 Rc8 27.Qc5 Nc5 28.Rb4! ab4 29.Rc5 Rb8 30.Rc2 c5 31.Bd5 b3 32.Rb2 (< 32.Rc5 b2 33.Ba2 b1Q 34.Bb1 Rb1 35.Kg2 f6+–) 1–0. Osovsky,Boris (2000) – Calderon Campos,Jose Carlos (1890), Valencia Provincial South, 2004.

6.e3 0–0

7.d3 c5 8.Be2 Nc6 9.0–0 d4 10.ed4 cd4 11.Bb2 Qb6 12.Qc1 Re8–/+ 13.Nbd2 Be6 14.Re1=+ Bb4 15.a3 Ba5 16.c3 dc3 17.Bc3 Bc3 18.Qc3 Nd5 19.Qc1 Rac8 20.Qb1 Qb1 21.Rab1 b6 22.Rbc1 Nf4 23.Bf1 Bd5 24.g3 Ne6 25.Bh3 Ncd4 26.Rc8 Nf3 27.Nf3 Rc8 28.Nd4 Rc3 29.Nb5 Rd3 30.Bf1 Rb3= 31.Na7 g6 32.Re5 Bb7 33.Nb5 Rb1 34.f4 Ba6–/+ With the idea Nc5 35.a4 Nc5 36.Re8 Kg7 37.Ra8 Ra1 38.Kf2 Ra2 39.Kg1 Ra1 (better is 39...h5!?–/+) ½–½. Walther,Manfred – Larwinski,Paul, 2006.

7.d4 Ne4 8.Bb2 c5 9.Bd3 Qa5 10.c3 c4 11.Bc2 Qb6 12.Qc1 Qg6 13.0–0 Nc6=+ 14.Nbd2 Bg4 15.Ne4 de4–/+ 16.Nd2 f5 17.Re1 Bf3 18.g3=+ Qh5 19.Bd1 g5 20.Bf3+= ef3 21.Qd1 g4 22.Qa4 Nb4 23.h4 Bh4?? 24.gh4?? Qh4+/– 25.Qb4 Rf6 26.Qc4 Kh8= 27.Qc7 f4?? (27...f4 28.Qb7 Rg8+–; better is 27...Rh6 28.Qe5 Kg8 29.Qd5 Kh8 30.Qe5 Kg8 31.Qd5 Kh8 32.Qe5=). fretless – Gordon, internet, 2005.

7.d4 Ne4 8.Nfd2 f5 9.Bb2 Bd6 10.c4 Qh4 11.g3 Ng3 12.fg3 Bg3 13.Ke2 f4 14.Bg2 Bg4 15.Nf3 Bf2 16.cd5 Be3=+ 17.Qe1 Qh5 18.Qd1 Re8–/+ 19.Kf1 Bh3 20.Rg1 Bg1 21.Bh3 Qh3 22.Kg1 Re3 23.Nbd2 Qh5–+ 24.Rc1 Na6 25.Qf1 Qd5 26.Qc4 c6 27.Ne5 Nc7 28.Rf1 Rf8 29.Kf2 Rf6 30.Qd5 Nd5 31.Ndf3 Re6 32.Rb1 Re7 33.Nd2 Nc3 34.Bc3 Rc3 35.Ne4 Rc2 36.Kf3 Ra2 37.Kf4 Rh2 38.Nd6 Rh4 39.Kg3 Rd4 40.Nf5 Re5 41.Nd4 Re7 42.Nf5 Rd7 43.Kf4 g6 44.Ng3 Kg7 45.Ra1 b6 46.Rc1 c5 47.Ne4 h5 48.Ke5 Re7 49.Kf4 Rf7 50.Ke3 Rd7 51.Kf4 Kh6 52.Rb1 Rc7 53.Ke5 Re7 54.Kf4 c4 55.Ke3 Rb7 56.Nd6 Rc7 57.Kd4 Rd7 58.Ke5 c3 59.Nb5 c2 60.Rc1 a6 61.Nc3 Rc7 62.Nd5 Rc6 63.Nb4 Rc4 64.Na6 h4 65.Kd5 b5 66.Nc5 h3 67.Nd3 h2 68.Ke5 Kg5 69.Rh1 Rh4 70.Ne1 c1Q 71.Nf3 Kh5 72.Rc1 h1Q 73.Rh1 Rh1 (73...Rh1 74.Nd4 b4–+) 0–1. Riepe,Bernhard – Lauer,Roland, DESC, 2000.

7.d4 Bf5 8.Nbd2 Nbd7 9.Rb1 Nb6 10.Be2 Ne4 11.Ne4 de4 12.Nd2 c5 13.0–0 Rc8 14.Rb5 Bd7 15.Rb1 cd4 16.Bd4= Ba4 17.Nb3 Bd6 18.f4 ef3 19.Bf3 Qc7 20.g3 Nc4 21.Bd5 Bg3 22.Qh5 Be5 23.Nc5 Bd4 24.ed4 b6 25.Na4 Nd2 26.c3 Rce8 27.Rbe1 Nf1 28.Rf1 (28.Kf1 Qf4 29.Bf3 Re1 30.Ke1 Qc1 31.Bd1 Re8 32.Kf2 Qe3 33.Kg2 Qd2 34.Kg3 g6–+) ½–½. Riepe,Bernhard – Wosch,Arkadiusz J, DESC, 2000.

7.Be2 Nc6 8.0–0 Ne4 9.Bb2 Re8 10.d3 Bf6=+ 11.c3 Nd6 12.Nbd2 Qe7 13.Re1 Be6 14.Rb1 Bf5 15.Qc2 Rad8 16.Nd4 Nd4 17.cd4 c6 18.Ba3 h6 19.Nf1 Qc7 20.Ng3 Bh7 21.Bg4 b6 22.Bb4 Bh4 23.Rec1 Bg3 24.hg3+/– Nc4 25.Qe2 a5 26.Be1 Nd6 27.Bf3 Nc8 28.Qc2 Ne7 29.Bd2 Bg6 30.a4 Rd6 31.Qb3 Nc8 32.Bd5! Qd7 33.Bc4 Qg4 34.Ba6 Bh7 35.Qc3 c5 36.dc5 bc5 37.Bb5 Red8 38.Qc5 Bd3 39.Bd3 Rd3 40.Ba5 Re8 41.Qc6 Rf8 42.Bc3 Rfd8 43.Bd4 Nd6 44.Qa6 Qf5 45.Qb6 Qg5 46.a5 Rd2 47.Rc5 Qe7 48.Rd5 Qd7 49.a6 Rd3 50.a7 Rd4 51.Qd4 Qc6 52.Rb8 Qe8 53.Rd8 (53.Rd8 Qd8 54.Rd6 Qa5 55.Qe4 Qa1 56.Kh2 f6 57.Rd8 Kf7 58.Qe8#) 1–0. Fritz 8 – Fritz 5.32, 2003.

7.Be2 Nbd7 8.d4 Ne4 9.Bb2 Ndf6 10.h3 h6 11.a3 c6 12.c4 Be6 13.Nbd2 Qb6 14.c5?? Qb2–+ 15.Rb1 Qc3 16.Rb7 Nd2 17.Nd2 Rfe8–+ 18.0–0 Qa5 19.Qc2 Bc8 20.Rb2 Bf8 21.Rfb1 Qc7 22.Qa4 Ne4 23.Ne4 Re4 24.Ba6 Bc5 25.Bc8? Qc8 26.f3 Rh4 27.g3 Rh3 28.dc5 Rg3 29.Rg2 Qh3 30.Rbb2 Rg2 31.Rg2 Qf3 32.Qc6 Qe3 33.Kh2 Qf4 34.Rg3 Qf2 35.Kh3 Qf5 36.Kg2 Rb8 37.Qh6 Rb2 38.Kh1 Qf1 (38...Qf1 39.Rg1 Qf3 40.Rg2 Qg2#) 0–1. Dewindt,Cor – Hinds,Ronald, Canada op Edmonton, 2000.

4.c4 c6

5.Qb3 Na6 A) 6.Bd4 0–0 7.Qf3 Be7 8.Nc3 c5 9.Be5 Nb4 10.Rc1; B) 6.Qb2=+ Be7 7.e3 0–0 8.Nf3 d6 9.Bd4 Nc5 10.Be2.

5.Qb3 d6 A) 6.Bb2 Na6 7.a3 Ba5 8.Qf3 Be6 9.Bf6 gf6 10.e3; B) 6.Bd4 c5 7.Bb2 0–0 8.a3 Ba5 9.Nf3 Nc6 10.e3.

5.Qb3 Qe7 6.Nf3= 0–0 7.Bf6 Bd2?? 8.Nbd2+– Qf6 9.Rd1 d6 10.Ne4 Qf4 11.Nd6 Be6 12.e3 Qh6 13.Qb7 Nd7 14.Qc6 Rae8 15.Ne8 Bc4 16.Qc4 Re8 17.Rd7 Qg6 18.Qd3 Qb6 19.Be2 Rf8 20.0–0 a5 21.Ng5 f5 22.Qd5 Kh8 23.Nf7 Rf7 24.Qf7 h5 25.Qg7# 1–0. jammboy – interloper, ChessWorld.net, 2009.

5.e3 Na6 6.Nf3 d6 7.Bb2 0–0 8.Be2 Bf5 9.0–0 Nc5 10.d3 Ncd7 (10...d5 11.cd5 cd5 12.Nd4=) 11.e4 Bg6 12.Nh4 Nc5 13.f4 Nfd7 14.Ng6 hg6 15.f5 (15.Nc3 Qa5 16.Rc1 Rfe8=) 15...gf5+= 16.Rf5 Ne6 17.Kh1 Bc5 18.Nc3 Nd4 19.Rf1 ½–½. Schalkwijk,Peter H – Topot,Iwan, IECG, 2005.

5.Nf3 d5 6.cd5= 0–0 7.a3 Be7 8.dc6 Nc6 9.Bb2 Qb6 10.Qc2 Bf5 11.d3 Be6 12.e3 Rac8 13.Bc3 Nd5 14.Qb2+= f6 15.Qb6 Nb6 16.Be2 Na4 17.0–0 Rfd8 18.h3 Nc5 19.Ne1 Nb3 20.Ra2 Nbd4 21.Rb2 Ne2 22.Re2 b6 23.Rd2 Bd6 24.Nf3+= Bd5 25.Nh4 Ne7 26.Bb2 g5 27.Nf3 Bf3 28.gf3 Kf7 29.Rfd1 Ng6 30.Kf1+= Rc6 31.d4 Rdc8 32.Rd3 Ne7 33.d5 Rc2 34.Bc3 Ng6 35.Bb4 Ne5 36.R3d2 Ke7 37.Ke2 R2c4 38.Rd4 Rc2 39.Nd2 Nc4 40.Kf1 Bb4 41.ab4 Nd6 42.Ne4 h6 43.Nd6+/– Kd6 44.Re4 Kd7 45.Ra1 Rb2 46.Re6 a5+/– 47.Kg2 Rcc2= 48.Rf1 Rb4 49.Rf6 a4 50.Rh6 a3 51.Ra1 a2–/+ 52.Rh7 Kd6 53.Ra7 Rbb2 54.Kg3 Rf2 55.Kg4 Kd5 56.Kg5=+ b5 (56...b5 57.f4 Ke4–/+) 0–1. Schirmer,Michael – Pommerel,Wim, corr KGP/2.Z–02, 1992.

5.e3 d6

6.Bb2 0–0 7.Qf3 Nbd7 8.a3 =+.

6.Bb2 Ba5 7.Nf3 Bg4 8.Be2 Nbd7 9.0–0 Bf3 10.Bf3+= Ne5 11.Be2 0–0 12.Qc2 Qe7 13.f4 Ng6 14.Rf3 Rfe8 15.Qf5 Bd8 16.Rh3 Qe6 17.Qg5 h6 18.Qg3 Ne4 19.Qf3 f5 20.Qf1 Bf6 21.d4 Ne7 22.Nc3 Nd2 23.d5 cd5–+ 24.cd5 Nd5 25.Qc1 Nc3 26.Bc3 Rac8 (26...Rac8 27.Bd2 Rc1 28.Rc1 a6–+) 0–1. Sternik,Ryszard – Drzycimski,J, corr Poland, 1991.

6.Bc3 Na6 7.Nf3 Bg4 8.Be2= 0–0 9.0–0 Re8 10.a3 Ba5 11.Ba5 Qa5 12.d4 Ne4 13.Nfd2 Be2 14.Qe2 f5 15.Ne4 fe4 16.Qd2 Qd2 17.Nd2+= Re7 18.Nb3 b6 19.f4 ef3 20.Rf3 Rae8 21.Kf2 Nc7 22.Rf1 d5 23.Nd2 Ne6 24.cd5 cd5 25.Rf5 Nd4 26.ed4 Re2 27.Kg3 Rd2 28.Rd5 h6 (28...h6 29.Rd7 Re3 30.Rf3 Ree2=). de Visser,Arno – Sternik,Ryszard, corr or01–004 E–mail, 2001.

6.Bc3 Bc3 7.Nc3 0–0 8.d4 =.

5.Nf3 0–0

6.a3 Be7 7.Nc3 d6 8.Bg3 d5 9.e3= Ne4 10.Qc2 Bf5 11.Bd3 Bf6 12.cd5 cd5 13.0–0 Na6 14.Nd4 Bg6 15.Be4 de4=+ 16.Ndb5 Nc5 17.Bd6= Nd3 18.Bf8+= Qf8 19.Qb3 Qc5 20.Nd4 b6 21.Qa4 Qh5 22.Qc6 Rd8 23.Ne4 Be5 24.f4 Bd4 25.ed4 f5?? 26.Ng3 Qg4 27.Qc4 (27.Qc4 Bf7 28.Qd3+–) 1–0. jaskier (2145) – ball, internet, 2006.

6.e3 d6 7.Bb2 Bg4 8.Be2 d5 9.cd5 Nd5 10.0–0 Re8 11.d4 Nd7 12.Nbd2 N7f6 13.Qc2 Qe7 14.a3? Ne3!–+ 15.fe3 Qe3 16.Rf2 Bd2 17.Nd2 Be2 18.Re1 Qd3 19.Qc1 Ng4 (19...Ng4 20.Qc3 Nf2 21.Kf2 Qf5 22.Kg1 Qg6–+) 0–1. Steiner,Peter Martin – Van Dorsselaer,Adrianus, Baden–ch JS, 2003.

5.Nf3 d6

6.a3 Bc5 7.Bf4 Qa5 =+.

6.a3 Bc5 7.Bf4 Nh5 =+.

6.Bb2 Nbd7 7.e3= Nc5 8.Be2 Bf5 9.0–0 Ba5 10.d4 Nce4 11.Nh4 Be6 12.f3 Ng5 13.d5 cd5 14.cd5 Nd5 15.Bb5 Kf8 16.Nf5 Bf5 17.Qd5 Be6 18.Qd4 f6 19.f4 Bb6 20.Qd3 Nf7 21.Nc3 Rc8 22.Nd5 Bd5–/+ 23.Qd5 Be3 24.Kh1 a6 25.Bc4 Qd7 26.Rae1 Bc5 27.Qf3 Nd8 28.Bd5 Rc7 29.Re4 h5 30.Rfe1 Nc6 31.Qh3 Qc8 32.Qf5 Rh6 33.Bb3 a5 34.Qd5 Rh8 35.Re6 Qd8 36.Bc3 Rd7 37.Qf5+/– (37.Qf5 Bd4 38.Qe4+–) 1–0. Bonetti,Shane – Baer,Werner, TT–10 ETC, 2003.

6.Bc3 Ba5 7.e3 Bf5 8.d3 0–0 9.Be2 d5 10.Nd4 Bg6 11.cd5 Nd5 12.Ba5 Qa5 13.Nd2 Nd7 14.0–0 Nc3 15.Qc2 Ne2 16.Ne2 Qc5 17.Qb3 Qd6 18.d4 b6 19.Rac1 c5 20.Nc4 Qe7 21.Rfd1 cd4= 22.Rd4 Rac8 23.Nf4 Be4 24.Rcd1 Nc5 25.Qa3 f5 26.Nd6+= Rc7 27.Nb5 Rb7 28.Qb4 Qf7 29.Nd6+/– Qa2 30.Nb7 Bb7 31.Rd8 Rd8 32.Rd8 Kf7 33.h4 Bc6 34.Qd4 Qb1 35.Kh2 Qe4 36.Rc8 (36.Rc8 Bd7 37.Rc7+–) 1–0. Dluhosch,Thomas – Cannell, corr, 1988.

6.Bc3 Bc3 7.dc3 0–0 +=.

6.Bc3 Bc3 7.Nc3 0–0=+ 6.a3 Bc5 7.Bf4 Qa5 =+.

6.Bc3 Bc3 7.Nc3 0–0 8.e3 a6 9.d4 Qa5 10.Qd2 =.

6.Bc3 Bc3 7.Nc3= Bf5 8.e3 Nbd7 9.Nh4 (9.Nd4 Bg6=) 9...Bg6 (9...Be6 10.Rb1=) 10.Ng6 hg6 11.Be2 Qa5 12.Qc2 Qg5 13.g3 Qf5 14.Qf5 gf5 15.d4 0–0–0 16.a4 Rh6 (16...Ne4 17.Ne4 fe4 18.Rb1=) 17.Bd3 Rdh8 18.Bf5 (18.h4 g6+=) 18...Rh2= 19.Rh2 Rh2 20.Ke2 g6 21.Bd7 Kd7 22.Rb1 Kc7 23.e4 Nd7 24.Rf1 a6 25.Kd3 Rh5 ½–½. Woloszyn,Piotr (1845) – Suwarski,Pawel (2055), ch–City Poland, 2007.

6.Bd4 0–0 7.e3 c5 8.Bb2 Be6 9.Ng5 Nbd7 10.a3 =.

6.Bd4 Na6 7.a3 Ba5 8.e3 0–0 9.Be2 Nc5 10.0–0 =.

6.Bd4 c5 7.Bb2 0–0 8.e3 Nc6 9.Be2 d5 10.cd5 =.

6.Bd4 Bc5 7.Bc5 dc5 8.e3 0–0 9.Be2 Bg4 10.0–0 =.

6.Bb2 0–0

7.a3 Ba5 8.e3 Re8 9.Be2 Nbd7 10.0–0 =.

7.Qb3 Na6 =+.

7.Nc3 Be6 8.e3 =+.

7.Nc3 Bg4 8.Qb3 Na6 =+.

7.Nc3 Bg4 8.d4 Ne4–/+ 9.Rc1 Qa5 10.Qb3 Nd7 11.Ng1 Nc3 12.Rc3 Rae8 13.f3 Bf5 14.e4 h6 15.Bd3 Bc3 16.Bc3 Qb6 17.Ne2 Bg6 18.0–0 Nf6 19.Qa3= Rd8 20.c5 Qc7 21.cd6 Rd6 22.Bb4= Rfd8 23.Bd6+/– Qd6 24.Qa7 Qb4 25.Rd1 Qb2 26.a4 Qb3 27.Rd2 Qb4 28.Rd1 Qb3 29.Rd2 Qb4 30.Rd1 Qb3 ½–½. SuperForte – REXChess, February, 1994.

7.e3 Bf5 8.Nc3 –/+.

7.e3 Bg4 8.Be2 Nbd7 9.0–0 d5 10.d4 Bf3=+ 11.Bf3 dc4 12.Qc2 Nb6 13.Nd2 Bd2 14.Qd2 Na4 15.Rac1 Nb2 16.Qb2 Qe7 17.Rc4 Rad8 18.g3 Rfe8 19.Re1 h6 20.Qb3 Rd7 21.Rec1 Ne4 22.R4c2 Qe6 23.Qe6 Re6 24.Bg4 Red6 25.Bd7 Rd7 26.Kg2 Kf8 27.Kf3 Nf6 28.h4 Ke7 29.a4 Ke6 30.a5 a6 31.Rc4 Rd5 32.Rc5 Rd7 33.R1c4 h5 34.Rc1 g6 35.Rb1 Nd5 36.Rbc1?? Nf6 37.R1c4 Ng4 38.Rb4 f6 39.Rb6 Kd6 40.Rc2 Re7 41.Rcb2 Nh2 42.Kg2 Ng4 43.Rb7 Rb7 44.Rb7 Kd5 45.Rb6 c5 46.dc5 Kc5 47.Ra6 Kb4 48.Ra8 Ne5 49.a6 Kb5 50.Kf1 Nc6 51.Rf8 Ka6 52.Rf6 Kb7 53.Rg6 Ne5 54.Rg5 Ng4 55.Rh5 Nf6 56.Rc5 Kb6 57.Rc8 Kb7 58.Rc4 Kb6 59.g4 Kb5 60.g5 Nd7 61.Rf4 Nc5 62.h5 Nb3 63.h6 Nd2 (63...Nc5 64.h7 Nd3 65.Rf5 Ka4 66.h8Q+–) 1–0. SuperForte – REXChess, 1994.

4.c4 d5

5.a3 Ba5 6.e3 (6.Qa4 Nbd7 7.cd5 0–0=) 6...Bg4 (6...Nc6 7.Bb2 0–0 8.cd5 Nd5 9.Nf3+=) 7.Nf3 (7.Qa4!? c6 8.cd5+=) 7...Nbd7 8.Bb2 0–0 9.Be2 (9.cd5 Nd5 10.Be2 N7b6+=) 9...dc4 10.Bc4 Re8 11.0–0 Ne5 (11...Nb6!? 12.Be2 Qd6=) 12.Be5+= Bf3? (12...Re5!? 13.Bf7 Kh8+/–) 13.Qf3 (better is 13.Bf6!? Qf6 14.Qf3 Qa1 15.Bf7 Kh8 16.Be8 Re8 17.Qb7+–) 13...Re5+/– 14.d4 (14.Qb7 Re7+/–) 14...Re8 (better is 14...Re4!? 15.Rc1 c6+=) 15.Qb7+/– Ne4 (15...Qb8 16.Qc6+/–) 16.Bd5 ½–½. Hilbert,Stephan J – Goldmund,Heike, FICGS, 2015.

5.a3 Bc5 6.Bb2 dc4–/+ 7.e3 Be6 8.Qc2 b5 9.Nf3 0–0 10.Be2 Nbd7 11.0–0 a6 12.Nc3 Qe7 13.d4 Bb6 14.Ng5 h6 15.Ne6 fe6 16.Bf3 Rad8 17.Na2 c5 18.a4 Nd5 (18...cd4!? 19.Bd4 Bd4 20.ed4 e5 21.ab5 ab5–/+) 19.Bd5 ed5 20.ab5 ab5 21.Nc3 cd4 22.ed4 Nf6 23.Nb5 Qe8 24.Qa4 Ne4 25.Qb4 (25.f3!? Nd2 26.Rfe1–/+) 25...Rb8 26.f3 c3 27.Bc3? Nc3–+ 28.Nc3 Qe3 29.Kh1 Bd4 30.Nd5 Rb4 31.Ne3 Be3 32.Rfe1 Rb3 33.Re2 h5 34.Rae1 Bb6 35.Rf1 Rf4 36.Rc2 h4 37.Rd1 Rfb4 38.Ra2 Rb2 39.Rb2 Rb2 40.Rc1 Bf2 41.Rd1 Kh7 42.Rc1 Re2 43.Ra1 Kg6 44.Ra6 Kf5 45.Ra5 Re5 46.Ra1 Re1 47.Re1 Be1 48.Kg1 Bb4 49.Kf2 Bc5 50.Kf1 Kf4 0–1. Bendig,Frank (2370) – Faber,Hans_Alban (2460), CiF–12.Superturnier, 2010.

5.a3 Nc6 6.Qa4 Bd6 7.Bd6 Qd6 8.d4 +=.

5.Qa4 Nbd7 6.cd5 Be7 7.Nc3 0–0 8.Bd4 Bc5 9.Bc5 Nc5 10.Qd4 =.

5.cd5 Bf5?? 6.Qa4+– Nbd7 7.Nf3 (better is 7.Qb4 Ne5 8.Qf4 Nd3 9.ed3 Qd5 10.Nc3+– (10.Qc7? Rc8 11.Qc8 Bc8–+)) 7...Qe7 8.a3 (8.Bc7? Rc8 (8...Nd5?! 9.Ba5+=) 9.Nc3 Rc7–+) 8...Bd6 9.Bb2 (9.Bf6 Qf6 10.Nc3 a6+=) 9...0–0 10.Nc3?? (better is 10.Bf6 Nf6 11.Nc3=) 10...Nc5–+ 11.Qc4 (11.Qd4 Nd3 12.Kd1–+) 11…Nd3 (11...Nd3 12.Qd3 Bd3–+) 0–1. Leonov,Vladislav (2165) – Sobolev,Vladislav, RUS–chB U16 Dagomys, 2009.

5.e3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 d5 5.c4).

5.Bg3 d4 6.a3 Ba5 7.Qa4 Nc6 8.Nf3 Bd7 9.Ne5 Bb6 10.c5 Bc5 11.Nf7 Kf7 12.Qc4 Kg6 13.Qc5 Bf5 14.f3 Re8 15.Kf2 (15.h4 Qd7+=) 15...Re6 16.e4 (16.e3 de3 17.de3 Qd1–/+) 16...Be4! 17.h4 (17.fe4 Ne4 Double attack) 17...b6 (17...h6 18.h5 Kh7 19.Kg1–+) 18.Qg5–/+ Kf7 19.a4 (19.Qf4!? d3 20.Qc7 Qc7 21.Bc7–/+) 19...Kg8 20.Kg1 h6 21.Qf4 Bd5 22.Na3 (22.Qc7 Qe8–+) 22...Nh5 (22...Rc8 23.h5 Re5 24.Bh4–+) 23.Qg4 (23.Qc7 Qf8 24.Bc4 Bc4 25.Nc4 Qc5–+) 23...Ng3 24.Qg3 Qe7 25.h5 Re5 26.f4 Re6 27.Nc2 Rf8 28.Bd3 Be4 29.Rf1 Qc5 30.Rh4 Bd3 31.Qd3 Qf5 32.Qf5 Rf5 33.Kf2 Ree5 34.Ra1 Rh5 35.Rh5 Rh5 36.Na3 a6 37.Rc1 Rc5 38.Rc5 bc5 39.Kf3 Kf7 40.Ke4 h5 41.Kd5 Nb4 42.Ke4 Ke6 43.Nc4 Nc6 44.f5 Kf6 45.Kf4 h4 46.a5 d3 47.Ne3 Na5 48.Ng4 Ke7 49.Ke3 Nc4 50.Kd3 Nd6 51.Ne5 Nf5 0–1. Degterev,Pavel (2545) – Saenko,Oleg (2505), 7. Ukrainian CCF Cup, 2008.

5.Qa4 Nc6

6.cd5 Qd5

7.Bc7? Qd4 8.Nc3 Bc3 9.Qd4 Bd4 –+.

7.Bf6 gf6

8.a3 0–0?? 9.ab4+– Bd7 10.b5 Ne5 11.Nc3 Qe6 12.e4 b6 13.f4 Ng4 14.h3 Nh6 15.Bc4 Qd6 16.Bd5 Rae8 17.Nge2 Qe7 18.Qc4 Rc8 19.Ra7 Be6 20.f5 Bd5 21.Nd5 Qe5 22.Qc6 Qe4 23.Nf6 (23.Nf6 Kg7 24.Ne4+–) 1–0. Koslowski,Volker (1985) – Neffgen,Dieter, DESC, 2003.

8.a3 b5 9.Qd1 Ba5= 10.Nc3 =.

8.Nc3 Bc3 9.dc3 Be6 10.e3 0–0–0 11.Nf3 Rhg8 12.c4 Qe4 13.Nd2 Rd2 (13...Qe5 14.Rc1 Bf5–/+) 14.Kd2+= Rd8 15.Kc1 Qe5 16.Rb1 Qc3 17.Qc2 Qe1 18.Kb2 Qa5 19.Rd1 (19.Qb3 Rd2 20.Kc1 Ra2–+) 19...Qb4 20.Qb3 Rd1 21.Qb4 Nb4 22.Kc3 Na2 23.Kc2 Rc1 24.Kb2 Bc4 25.Bc4 Rh1 (worse is 25...Rc4 26.Ka2 Rc2 27.Ka1 Rf2 28.g4–+) 26.Ka2 Rh2 (26...Rh2 27.Bf1 c5–+) 0–1. Walker,John T (1930) – Moskvichev,Valery Ivanovich (2195), VWC4/pr02 ICCF, 2011.

8.Nc3 Qc5 9.Rc1 Be6 0–1. van Rooijen,Peter (1775) – Cashon,John (1920), IECC, 2001.

8.a3 Ba5

9.Nc3 Bc3 10.dc3 Qe5 11.Rc1 Bd7 12.Nf3 Qc5 13.Qb3 0–0–0 14.Rb1 b6 15.e3 Be6 16.Qb2 Bd5 17.Nd4 Rhg8 18.f3 Bc4 19.Kf2 Ne5 20.Qc2 Qa3 21.Bc4 Nc4 22.Rhe1 Qd6 23.g3 Na3 24.Qf5 Kb8 25.Rbd1 Nc4 26.Qb5 (26.Qh7 Rh8 27.Qg7 Rh2 28.Kf1 Rdh8–+) ½–½. Woschkat,Karl_Heinz – Schwarte,Joachim, remoteschach.de, 2002.

9.Nc3 Bc3 10.dc3 Be6 11.e3 0–0–0 12.Nf3 Rhg8 13.c4 Qe4 14.Nd2 Rd2 (14...Qe5!? 15.Rc1 Bf5=) 15.Kd2+= Rd8 16.Kc1 Qe5 17.Rb1 Bf5 18.Qb3 Na5 (better is 18...Qa5 19.Qb7 Kd7–+) 19.Qb4–/+ Bb1 20.Kb1 Rd1 21.Kc2 Qa1 (21...Qa1 22.Qa5 Qb1 23.Kc3 f5–+) 0–1. Nenciulescu,Silviu Catalin (2080) – Deschamp,Guy (2370), IECG, 2006.

9.e3 Rg8 10.Ne2 =.

9.Nf3 Bf5 10.e3 0–0–0 11.Nc3 Bc3 12.dc3 Ne5 13.Nd4 (13.Qa7?? Nf3 14.Ke2 Qc4 15.Kf3 Qg4) 13...c5 14.Qa7 Nc6 15.Qb6 cd4 16.cd4 Rhe8 17.Rc1 Re6 18.Rc5 Qe4 19.Bc4 Qg2 20.Rf1 Bh3 21.d5 Red6 22.Ba6 Kd7 23.Qb7 (23.dc6? Ke8 24.Qd8 Rd8–+) 23...Ke8 24.Rc6 Rd5 25.Rc1 Qf3 26.Qc6 Kf8 27.Qc2 Bf1 28.Bf1 Rd2 29.Qd2 Rd2 30.Kd2 Qf2 31.Be2 Qh2 32.a4 h5 33.a5 (better is 33.Rc4!?–/+) 33...Qd6–+ 34.Ke1 Qb4 35.Kf2 Qh4 36.Kg2 Qg5 37.Kf2 h4 38.Rg1 Qa5 39.Rg4 Qf5 40.Bf3 Qh7 41.Rf4 f5 42.Bh1 Ke7 43.Rf3 Qg7 44.Bg2 Qb2 45.Kf1 Qc2 46.Bh3 Kf6 47.Ke1 Ke5 48.Rf2 Qc3 49.Ke2 Qc4 50.Ke1 Qd3 51.Rf3 Kf6 52.Kf2 Kg5 53.Ke1 Kg6 54.Kf2 Qd2 55.Kf1 Qd1 56.Kf2 Qd3 57.Bg2 Qc2 58.Kf1 Qb1 59.Kf2 Kg5 60.Bh3 f6 61.Ke2 Qc2 62.Ke1 Qd3 63.Kf2 Qd2 64.Kf1 f4! 65.ef4 Kh5 66.f5 Kg5 67.Bg2 Kg4 68.Kg1 Qe1 69.Kh2 Qe2 70.Ra3 Qe5 71.Kh1 Qe1 72.Kh2 Kf5 73.Kh3 Kg5 74.Rf3 Qe2 75.Kh2 Kg4 76.Ra3 f5 77.Ra4 Kg5 78.Ra3 Qb2 79.Rf3 Kg4 80.Re3 Qd4 81.Rh3 Qe5 82.Kh1 Qb2 83.Kg1 Qb6 84.Kf1 Qb1 85.Kf2 f4 86.Rf3 Qb6 87.Kf1 Qd4 88.Ke2 Qg1 89.Bh3 Kg5 90.Ra3 Qb1 91.Rf3 Qb5 92.Kf2 Qc5 93.Kf1 Qc1 94.Kf2 Qd1 95.Bg2 Qd4 96.Ke2 Qb2 97.Kf1 Qa1 98.Ke2 Qa6 99.Kf2 Qb6 100.Ke2 Qb5 101.Kf2 Qc5 102.Ke2 Qc2 103.Kf1 Qb1 104.Kf2 Qa2 ½–½. Wantoch_Rekowski,Jacek (1860) – Szabo,Mihaly (2135), RA–2010–0–00110, 2010.

9.Nf3 Bf5 10.e3 Bb1 11.Rb1+= 0–0–0 12.Bc4 Bd2 13.Ke2 (13.Nd2?! Qd2 14.Kf1 Na5+=) 13...Qa5 14.Qc2 Bc3? (better is 14...Ne5 15.Rhd1 Nf3 16.gf3 Be3 17.fe3 Qh5+–) 15.Rb5+– Qa6 (15...Qa3 16.Rb3 Qa5 17.Rc3 Rdg8+–) 16.Qc3 1–0. usingprogram (2005) – aferypopsl, playok.com, 2012.

5.cd5 0–0

6.a3 Ba5=+ 7.Qa4 Bb6 8.d4 Nd5 9.e3 Nc6 10.Bg3 Re8.

6.a3 Ba5 7.Bc3 Bb6 8.e3 Nd5 9.Nf3 Bg4 (9...Nd7 10.Bb2+=) 10.Bb2+= Re8 (10...Nd7 11.Bc4 Nc5 12.0–0=) 11.Nc3= Nc6 12.Be2 Nf4 (12...Ba5 13.0–0=) 13.ef4+= Bf3 14.gf3 Qh4 15.Rf1 Nd4 16.Ne4 Qf4 Attacking the isolated pawn on f3 17.Bd4 Bd4 18.Rb1 b6 19.Qc2 Rad8 20.Rh1 f5 21.Ng3 Qf3 22.Rf1 (22.Qb3 Qb3 23.Rb3 g6+=) 22...f4 23.Kd1 Qg2 (23...Qa3 24.Ne4 Qe7 25.f3=) 24.Nf5 Bc5 (24...Bf2 25.d4 Kh8 26.Bb5 Qg4 27.Kc1+=) 25.Nh4+= Qh2 26.Qc4 Kh8 27.Ng6 hg6 28.Bf3 Be3 29.Kc2 Rd2 f2 becomes the focus of attention 30.Kb3 Bc5? (30...Bf2 31.Rh1 Re3 32.Ka4 Bg3 33.Rh2 Bh2+–) 31.Rh1+– Rf2 32.Rh2 Rh2 33.Qf4 Bd6 34.Qd4 Re5 (34...Bc5 35.Qg4 Re3 36.Kc4 Ra3 37.Be4+–) 35.Rh1 Rh1 36.Bh1 Kg8 (36...Rb5 37.Kc2 Rc5 38.Kd2+–) 37.Be4 Rg5 (37...Rb5 38.Ka2 Rg5 39.Qd2+–) 38.Bd3 Kf8 (38...a6 39.Qh4 Rg3 40.Kc2 Rd3 41.Kd3+–) 39.Qh4 Rg3 40.Kc2 g5 41.Qe4 Bf4 42.Qe6 Rg2 43.Kb3 Rg3 44.Qd7 b5 (44...g6+–) 45.Kb4 a6 46.Kc5 Bd6 47.Kc6 Rd3 (47...g6 48.Bg6 Rf3 49.Bh5+–) 48.Qf5 (48.Qf5 Ke7 49.Qg5 Ke6 50.Qg6 Ke5 51.Qd3+–) 1–0. Critter 1?6a 64_bit – Stockfish 2?3?1 64_bit, CCRL, 2013.

6.a3 Ba5 7.Nc3 Nd5 8.Qb3 –/+.

6.a3 Ba5=+ 7.Nf3 Nd5 8.e3 (8.e4 Nd7 9.Bg3 Re8 10.Qc2 N7f6) 8...Nc6 9.Bb2 Qd6 (9...Be6 10.Bb5=+ Nce7; 9...a6 10.Qc2 Bg4) 10.Qc2 g6 (10...Rd8 11.Bd3 Qh6 12.0–0=) 11.Be2= Bf5 12.Qb3 Rad8 (12...Be6 13.0–0= (13.Qb7 Rfb8 14.Qa6 Rb2–+)) 13.0–0 (13.Qb7?? Rb8 14.Qa6 Rb2–+) 13...Be6 14.Qa4 (14.Qb7? Rb8 15.Be5 Rb7 16.Bd6 cd6–+) 14...Qe7 (14...f5 15.Rc1 Nb6 16.Qc2=) 15.h3 (15.Bb5 Nb6 16.Qf4 f6+=) 15...Rfe8 (15...Nb6 16.Qf4=) 16.Rc1 (16.Bb5 Nb6 17.Qf4 Nd5+=) 16...Nb6 (16...Bb6 17.Nc3=) 17.Qe4 Nd7 (17...f5 18.Qf4 Qd6 19.Qh4=) 18.d4 f5 19.Qf4 Nb6 (19...Nf6 20.Bb5+=) 20.Nc3 (20.Bb5!?+=) 20...a6 21.Ng5 Bc4 22.Qh4 Be2 23.Ne2 Nd5 24.Nf4 Nf4 25.Qf4 Rd5 26.Bc3 Qd6 (26...Bb6 27.Nf3=) 27.Qd6+= cd6 (27...Rd6? 28.Ba5 Na5 29.Rc7+–) 28.Rab1 (28.Ba5 Ra5 29.Nf3 Rb5+=) 28...Re7 29.g3 Kg7 30.h4 h6 31.Nh3 Bc3 32.Rc3 Kf6 33.Nf4 Ra5 34.Rb6 Rd7 35.Rcb3 (35.h5 g5 36.Nd3 Ke6+=) 35...g5 36.Ne2 (36.Nd3 Ke6+=) 36...Ne7= 37.Nc3 Ke6 38.Kg2 Nc8 39.Rb7 (39.R6b4 b5+=) 39...Rb7= 40.Rb7 Ra3 41.d5 Kf6 42.Rc7 Na7 43.Ra7 Rc3 44.Ra6 Ke5 45.Ra8 gh4 46.gh4 Rc7 47.Rh8 Rg7 48.Kf3 (48.Kh3 Rg6+/–) 48...Rg6+= 49.h5 Rf6 50.Ke2 (50.Rg8 Kd5 51.Kf4 Ke6+=) 50...Kd5 51.Kd3 Kc5 52.Rg8 Rf7 (better is 52...Kd5!?+=) 53.Rg6+– Ra7 54.Rh6 Ra2 55.f3 Kd5 56.Rh8 Ra3 57.Ke2 Ra2 58.Kf1 Ke6 59.Kg1 Kf7 60.Rd8 Rd2 61.Rd7 Kg8 62.Kf1 (62.h6 Re2+–) 62...Rh2+/– 63.Rd6 Rh5 64.Rd5 (64.Rd7 Rh2+–) 64...Kf7+/– 65.e4 (65.Rb5 Kg6+/–) 65...Kg6 66.Kf2 fe4= ½–½. henryk88 – leonenko, IECG, 2009.

6.a3 Ba5=+ 7.Bf6 Qf6 8.Ra2 Rd8=+ 9.e4 c6 10.Qf3 Qg6.

6.a3 Bd6 7.Bf6 Qf6 8.Nc3 Re8 9.e3 Nd7 10.d4 Qe7 11.Bd3 Ba3 12.Qc2 Nf6 13.Nge2 Bb4 14.0–0 Bg4 15.Na2 Be2 16.Qe2 Nd5 17.Qc2 (worse is 17.Nb4 Nb4 (worse is 17...Qb4 18.Rfb1 Qd6 19.Rb7+/–) 18.Rfb1 a5+=) 17...Bd6 18.Bh7 Kh8 19.Bf5 a5 20.g3 c6 21.Rfd1 a4 22.e4 Nc7 (22...Nb6 23.Rdb1 Bc7 24.Nc3=) 23.e5+= Ba3 24.Rab1 (24.Nc3 Nb5+=) 24...Nd5= 25.Nc3 Nc3 (25...Nb4!? 26.Qe2 g6+=) 26.Qc3+/– g6 27.Be4 (27.Bc2 b5 28.Qc6 Rac8+/–) 27...Bd6 28.ed6 Qe4 29.d7 Red8 30.d5 Kg8 31.Rb4 Qf5 32.dc6 bc6 33.Rh4 f6 34.Qc6 g5 (34...Kg7 35.Ra4 Ra4 36.Qa4+–) 35.Re4 (35.Re4 Kg7 36.Re8+–) 1–0. Wantoch_Rekowski,Jacek (2305) – Nenciulescu,Silviu (2165), 60yearsBdF–WS20, 2006.

6.a3 Bd6 7.Bf6 Qf6 8.Nc3 Re8 9.Nf3 Bf5 10.e3 c5.

6.a3 Nbd7 7.Bb2 Ba5 8.Qc2 Nb6 9.e3 Qd5 (9...Nbd5 10.Nf3+=) 10.Bf6= Bf5 11.Qb2 gf6 12.Nc3 Qc6 (12...Qe5 13.Rc1=) 13.Nf3 Bc3 14.Qc3 Qc3 15.dc3 Rad8 16.a4 Nd5 17.Ra3 c5 18.Be2 Rd7 19.a5 Rfd8 20.0–0 Be4 21.Rb3 Kg7 22.Rc1 a6 (22...Nc7 23.h4+=) 23.Ra1 Bc2 24.Rba3 Ne7 (24...Nc7 25.R3a2 Bd3 26.Kf1+=) 25.Kf1 Ng6 26.R1a2 Be4 27.Rb3 f5 28.h4 f6 29.Rab2 h5 30.g3 Bc6 31.Ke1 Kf8 (31...Ne7 32.Nd2 Kg6 33.Bf3=) 32.c4 Kg7 33.Rc3 Rh8 (33...Kh6 34.Nd2 Ne5 35.Nb3 Nf3 36.Bf3 Bf3 37.Rd2+=) 34.Nd2+= Nf8 35.Nb3 Ne6 36.Rd3 Re7 37.Kf1 Kg6 38.Rd6 Ree8 (38...Ra8 39.Rbd2+=) 39.Rbd2 Rh7 40.Bd1 Rhh8 41.Bc2 Rhf8 42.Nc1 Rg8 43.Ne2 Rgf8 44.Bd1 Rh8 45.Nc3 Rd8 (45...Kg7 46.R2d5 Bd5 47.Nd5+–) 46.Rd8+– Rd8 47.Nd5 Kg7 (47...Bd5!? 48.Rd5 Rd5 49.cd5 Nd8+–) 48.Bh5+– Kh6 49.Bd1 Nc7 (49...Kg7 50.Ke2+–) 50.Bf3 Rd7 51.Ke1 Rg7 (51...Ne8 52.Bd1+–) 52.Bg2 Rd7 (52...Ne8 53.Nf4 Bg2 54.Ng2+–) 53.Bh3 Bd5 (53...Nd5 54.Bf5 Rd8 55.e4+–) 54.Bf5 Rd8 (54...Rd6 55.g4+–) 55.e4 (worse is 55.cd5 Nb5+–) 55...Be4 56.Be4 (56.Rd8?! Bf5 57.Kd2 Bh3+/–) 56...Re8 (56...Rd2 57.Kd2 Ne6 58.Bb7+–) 57.Re2 Rb8 58.Bf3 Rd8 (58...Re8 59.Re8 Ne8 60.Bb7+–) 59.Bb7 Rd7 60.Rb2 Kh7 (60...Rd4 61.Rb6 Rc4 62.Rf6 Kg7 63.Rd6+–) 61.Rb6 Kg7 62.Ke2 Re7 (62...Kf7 63.Rc6 Re7 64.Kd3 Rd7 65.Kc3+–) 63.Kd3 f5 64.h5 Re8 (64...Rd7 65.Kc3+–) 65.Rg6 Kf7 (65...Kh7 66.Rc6 Ne6 67.Ra6 Rd8 68.Bd5+–) 66.Rc6 Re7 (66...Rd8 67.Kc3 Ne8 68.Ra6+–) 67.Rc5 (67.Ba6 f4 68.Bc8 Ne8 69.gf4 Re1 70.Rc5 Rd1 71.Ke2 Ra1+–) 67...Kg8 1–0. Stockfish 2?3?1 64_bit – Critter 1?6a 64_bit, CCRL, 2013.

6.a3 Qe7 7.Nf3 Bd6 8.Bf6 Qf6 9.Nc3 Rd8 10.d4 Qe7.

6.a3 Re8 7.Nf3 Bd6 8.Bf6 Qf6 9.d4 c5 10.Ra2 Nd7.

6.Qb3 Nd5 A) 7.a3 Bc5 8.Nc3 Nb6 9.Nb5 Nc6 10.Bb2 Nd4; B) 7.e4 Qe7 8.Qg3 Nf6 9.Bf6 Qf6 10.e5 Re8; C) 7.Nc3 Bc3 8.dc3 Re8 9.Nf3 Nc6 10.Bg3 Na5.

6.Nc3 Nd5 7.Qb3 Bc3 8.Bc3 Na6 –/+.

6.Nc3 Nbd7 7.Bf6 (7.Bd4 Nb6 8.a3 Ba5 9.e3 Nbd5 10.Nd5 Nd5) 7...Nf6=+ 8.Qb3 Bc3 9.dc3 Nd5 10.Rd1 c6.

6.Nc3 Re8 7.Bf6 (7.Nf3 Nbd7 8.Bd4 Nb6 9.a3 Ba5 10.e3 Nfd5) 7...Qf6 8.Qa4 Qe7 9.Rb1 a5 10.e3 Nd7.

6.Nf3 Nd5 7.e3 Nc6 8.Bb2 Re8 9.Be2 Bf5 10.0–0 Bd6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 Nc6 5.Bb2 0–0 6.e3 d5 7.cd5 Nd5 8.Nf3 Re8 9.Be2 Bf5 10.0–0 Bd6).

6.Nf3 Nbd7–/+ 7.Bb2 Nb6 (7...Re8 8.a3 Ba5 9.e3+=) 8.e3+= Nbd5 9.Be2 (9.Nc3 Bg4+=) 9...Re8 (9...Ne4 10.0–0+=) 10.0–0+= Qe7 11.Nd4 (11.a3 Bd6+=) 11...Ba5 (11...Ne4 12.a3 Bc5 13.Bf3+=) 12.Qc2 c6 13.Nc3 Bc7 (13...Nc3!? 14.Bc3 Bc3 15.dc3 c5+=) 14.Nd5+= Nd5 15.Nf5 (15.f4 Bd7+=) 15...Bf5= 16.Qf5 Rad8 17.Bf3 Qd6 18.g3 Ne7 19.Qg4 Ng6 (19...Qg6 20.Qg6 hg6 21.d4+=) 20.d4 Qe6 21.Qe6 fe6 22.Rab1 e5 23.Rfc1 (23.Bc3 Bb6+/–) 23...Bb6+= 24.Rd1 ed4 25.ed4 (25.Bd4 Bd4 26.Rd4 Rd4 27.ed4 Re7+=) 25...Ne7= 26.Rd3 Nd5 27.Ba3 Nc7 28.Rbd1 Kf7 29.Bc1 Nd5 30.Bd2 Nf6 31.Bg5 h6 32.Bf4 Nd5 33.Be5 Re7 34.a3 (34.Rb3 Nf6+=) 34...Bc7= 35.Re1 Nb6 36.Rc3 (36.Bh5!? Kf8 37.Rb3=) 36...Rd4+= 37.Bd4 Re1 38.Kg2 Be5 39.Rd3 (39.Re3!? Re3 40.Be3+=) 39...Bd4–/+ 40.Rd4 Re7 41.Rd8 Rd7 42.Rh8 Nc4 43.a4 Nb2 (43...Ne5 44.Bh5 Ke7 45.f4–/+) 44.a5 a6 45.Bh5 Ke7 46.Re8 Kd6 47.Bg4 Re7 (47...Rc7 48.Re4 Kd5 49.Re1–/+) 48.Re7+= Ke7 49.Bc8 Nc4 (49...Nd3!? 50.Bb7 Nb4+=) 50.Bb7= Na5 51.Ba6 c5 (51...Kd6 52.Kf3=) 52.Kf3 Ke6 53.Ke4 g6 54.f4 Nc6 55.Bc4 Kf6 56.Kd5 Nd4 57.Kc5 (57.Bd3 Ne6+=) 57...Nf3= 58.h3 g5 59.fg5 Ng5 60.Kd4 ½–½. Teichmann,Erik O M C (2310) – Noordhoek,Henk (1975), 18th Obert Internacional Sant Marti Gro, 2016.

5.cd5 Qd5

6.Bb2 c5 7.e3 Nc6 8.Nf3 Bg4 9.Be2 (9.a3 Ba5=) 9...0–0–0 (9...Qd6!?+=) 10.0–0 Kb8 11.Qa4 Bd7 12.Qc2 Bf5 13.Qa4 Bd7 14.Qd1 Rhe8 15.d3 Bg4 (15...Bf5 16.a3 Ba5 17.Bf6 gf6 18.Qc2=) 16.a3+= Ba5 17.Qa4 Bd7 18.Qc2 Qd6 19.Nc3 Bc3 20.Bc3 h6 21.Rab1 Bc8 (21...Bf5!?+/–) 22.Rfc1+– Nd7 23.d4 cd4 24.Nd4 Nb6 (24...Nd4 25.Bd4 Ne5 26.Rd1+–) 25.a4 (25.Nc6 Qc6 26.Bb5 Qe4 27.Be8 Qc2 28.Be5 Ka8 29.Rc2 Bf5+–) 25...Ka8 26.a5 Nd4 27.Bd4 Nd5 28.a6 b6 29.Bf3 Kb8 30.Bd5 Qd5+/– 31.Qc7 Ka8 32.h3 Qd7? 33.Qg3 Ba6 34.Ra1 Qb5 35.Rcb1 Qe2 36.Kh2 Rd7 37.Rb2 Qc4 38.Rba2 Bb5 39.Bb6 Rde7?? 40.Bd4 Rb7?? 41.Qg7 Qc7 42.f4 a6 43.Qh6 Kb8 44.Be5 Re5 45.fe5 Qe5 46.Qf4 Qf4 47.ef4 1–0. Shorokhov,Mikhail (2105) – Vinogradov,Anatoly (1905), Anapa op, 2009.

6.Bb2 Qd8 7.Qa4 Nc6 8.Nf3 +=.

6.Bc7 Qd4 7.Qc2 Na6 –/+.

6.Nf3 Qc6 7.Nd4 Qb6 8.Qa4 Nbd7 9.Nb5 Ne5 10.Qb4 –/+.

6.Nf3 Bg4 7.Nc3 Bc3 8.Bc3 Bf3 9.gf3+= Nbd7 10.Qb3 (10.e4 Qh5+= 11.Rb1 0–0–0 12.Rg1 Rhg8 13.Rg3 Nb6 14.a4 Rge8 15.a5) 10...Qb3 (10...0–0!?= 11.Rg1 Qd6 12.e3 b6 13.f4 g6 14.Qc4 Rad8 15.Qd4) 11.ab3+/– 0–0 (11...Ke7 12.e4+/– (12.Rg1 g6 13.e4 c5 14.0–0–0 Rhc8 15.Kb2) 12...c5 13.Rg1 g6 14.0–0–0 Rhc8 15.Kb2) 12.Rg1 (12.e4 Rfe8 13.Rg1 h6+/– (13...g6 14.Bh3 c5 15.Ke2) 14.d4 g6 15.Kd2) 12...g6 (12...Rfe8 13.e4+/– g6 14.Bh3 c5 15.Ke2) 13.e4+/– Rfe8 14.Kd1 (14.Bh3 a6+/– (14...c5 15.Ke2) 15.d4) 14...c5 15.Bh3 Ne5 (15...b6+/–) 16.Bg2 (16.Ke2!?+/–) 16...Nh5= 17.Kc2 (17.Ke2!?=) 17...Nf4+= 18.Be5 (18.Ra5 b6 19.Ra6 Re7+=) 18...Re5 19.Ra4?? (better is 19.Bf1+=) 19...Rg5–+ 20.Rga1 (20.b4 cb4 21.Rb4–+) 20...Rg2 21.Ra7 Ra7 22.Ra7 Rf2 23.Rb7 Rf3 24.Rc7 Ne6 (24...Ne6 25.Rc8 Kg7–+) 0–1. Chirpii,Alexandru (1965) – Roitman,L (1915), Cupa ULIM, Kishinev MDA, 2005.

6.Nf3 Bg4 7.Bf6 gf6 8.Nc3 Bc3 9.dc3 Qc6 10.Qd4 Bf3 11.ef3 Nd7 12.Qe4 Qe6 13.Bc4 Qe5 14.0–0 Qe4 15.fe4 Ne5 16.Be2 Ke7 17.Rfd1 Rad8 18.f4 Nc6 19.Kf2 Rhg8 20.g3 Nb8 21.Rab1 b6 22.Rd8 Rd8 23.Rd1 Nd7 24.Bh5 Rf8 25.Bg4 Nc5 26.Be2?? Ne4–/+ 27.Kf3 Nc5 28.Bb5 f5 29.Rd5 Kf6 30.Bc6 Rg8 31.Bb5 a5 32.Ke3 Rc8 33.Bd3 Re8 34.Kd4 Ne6 35.Kc4 Ng7 36.Rd7 Re7 37.Rd5 Re3 38.Rd7 Re7 39.Rd5 Re3 40.Rd7 Re7 ½–½. Grits – weckner, Live Game Caissa's Web, 2004.

6.Bf6 gf6

7.a3 Ba5 8.e3 Nc6 9.Nc3 Bc3 10.dc3 Qc5 11.Ne2 Bf5 12.Qd2 Ne5 13.Nf4 Rd8 14.Qb2 0–0 15.Be2 Nd3 16.Bd3 Bd3 17.0–0–0 Be4 18.Qb3 b6 19.Rd8 Rd8 20.Rd1 Rd1 21.Kd1 a5 22.Ke2 b5 23.f3 Bg6 24.h4 Kg7 25.h5 Bh5 26.Qd5 Qd5 27.Nd5 c5 28.c4 (28.Nc7 b4 29.cb4 cb4 30.ab4 ab4+/–) 28...bc4+= 29.e4 (29.Nb6 c3 30.Kd3 c2 31.Kc2 Bg6 32.Kc3 Kh6+=) 29...f5= 30.ef5 f6 31.Kd2 Bf7 32.Nc3 Kf8 33.Ne4 Ke7 34.Kc3 Bd5 35.Nc5 Kd6 36.Kd4 c3 37.Nd3 c2 38.Kc3 c1Q 39.Nc1 Ke5 40.Nd3 Kf5 41.Kd4 Ba8 42.Ke3 (42.Kc5 Kg5=) 42...h5= 43.g3 ½–½. Nicotera,Alessandro – Sartori,Delfino (1955), ITA/WB/021 (ITA), 2011.

7.Nc3 Qa5 8.Qc2 Nc6 9.Nf3 Bg4 10.e3 0–0–0 11.Rc1 Bf5 12.Qb3 =.

7.Nc3 Qa5 8.Ne4 Be7 9.Nf3 Nc6 10.Qb3 Rb8 11.e3 Be6 12.Bc4 Bc4 13.Qc4 Ne5 14.Ne5 Qe5 15.0–0+/– h5 16.f4 Qa5+/– 17.f5 Qe5 18.Rab1 h4 19.Rb7! Rb7 20.Qc6 Kf8 21.Qb7 h3 22.g3 Kg7 23.a4 a5 24.d4 Rb8 25.Qc6 Rb6 26.Qc2 Qd5 27.Rf4 Bd6? 28.Rg4+– Kf8?? 29.Rg8!! Ke7 30.Re8!! Ke8 31.Nf6 Kf8 32.Nd5 (32.Nd5 Rb8 33.f6+–) 1–0. b4_player – tvs, gamecolony.com, 2006.

7.Nc3 Bc3 8.dc3 Qd1 9.Rd1 Be6 10.a3 Nd7 11.Nf3 Rd8 12.e3 Ne5 13.Rd8 Kd8 14.Be2 Rg8 15.0–0 Bg4 16.Nd4+= Bh3 17.f4?? Rg2–+ 18.Kh1 Ng4 19.Bg4 Rg4 20.Rg1 Rg6 21.Rg3 Bf1 22.Kg1 Bd3 23.Kf2 Be4 24.Nb3 Rh6 25.h3 Rh5 26.Nd2 Bc6 27.e4= f5 28.e5 Rh4 29.Ke3 Ke7 30.Nb3 a6 31.Nd4 Be4=+ 32.Ne2 b5 33.Kd4 Rh6 34.c4=+ c5 35.Kc3 Kd7 36.Nc1 Rh4 37.Ne2 Kc6 38.Kb3 Kb6 39.Kc3 Bc6 40.cb5 ab5 41.Kb2 Be4 42.Kc3–/+ Bd5 43.Kd2 Bc4 44.Rf3 Kc6 45.Ke3 Be2 46.Ke2 Kd5 47.Kd3 Rh6 48.Ke2 c4 49.Ke3 Ra6 50.Ke2 Ke4 51.Kf2 Rc6 52.Ke2 c3 53.Rf1 c2 (53...c2 54.Rc1 Kf4–+) 0–1. Seifert,J – Junge,Wolfgang, corr DDR–ch M928, 1989.

7.Nf3 Nc6 =.

5.cd5 Nd5

6.e3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.cd5 Nd5).

6.e4 0–0 7.ed5 Re8 8.f4 Re5 9.fe5 Qh4 10.g3 Qe4 11.Qe2 Qh1 12.Qg2 Qg2 13.Bg2=.

6.e4 Nb6 7.Qf3 (7.Bg7 Rg8 8.Bc3 Rg4+=) 7...N8d7 (Better is 7...f6!? 8.Bf4 Bd6=+) 8.Bg7+= Rg8 9.Bh6 (Better is 9.Bc3!? Bc3 10.Nc3+=) 9...Ne5=+ 10.Qb3 Nbc4?? (Better is 10...Qd4!? 11.Nc3 Bc3 12.Qc3 Qe4 13.Qe3 Bf5=+) 11.Nc3 (11.Qb4 Nd3 12.Bd3 Qd3+–) 11...Rg5?? (Better is 11...Bf8 12.Bf4 Rg4 13.Bc4 Rf4 14.Qb5 Nc6+/–) 12.Bg5 (Better is 12.Bc4 Bc3 13.Qc3+– (< 13.dc3 Rg2 14.Qb5 Nd7+–)) 12...f6 (12...Qg5 13.f4! Qf4 14.Bc4 Bc3 15.Qc3 Qe4 16.Kf2 Ng4 17.Kf1 Be6+–) 13.Bf4 (Better is 13.Qb4 fg5 14.Bc4 a6+–) 13...f5 (13...Na3 14.Qg8 Bf8 15.Rc1+–) 14.Bh6 (14.Bc4 Bc3 15.dc3 Qf6 16.Bb5 Kf8 17.Qb4 Kf7+–) 14...Ng6 (14...Bf8 15.Bc4 Bh6 16.Qb5 Nc6+–) 15.Qc4 (15.Bc4 Qe7 16.Nd5 Qe5+–) 15...a5 (15...Bf8 16.Qg8 Qh4 17.Bf8 Nf8 18.Nf3+–) 16.Qg8 Bf8 17.Qh7 Ne5 18.Bf8 Kf8 19.Qh8 Ke7 20.Qd8 (Better is 20.Nd5 Qd5 21.ed5 Nf7+–) 20...Kd8 (21.d4 Nc6+–) +–. kamera – NN, GameColony.com, 2002.

6.Bg7 Rg8 7.Bb2 Bf5+=.

5.e3 0–0

6.a3 Ba5 7.Qb3 c5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Qb3 c5 7.a3 Ba5).

6.h3 Re8 7.Bb2 Nc6 8.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Nc6 7.Bb2 Re8 8.h3).

4.c4 d6

5.Bb2 Ba5 6.Nf3 Nc6 7.e3= Bg4 8.Be2 0–0 9.0–0 Bb6 10.Nc3 a6 11.Rb1 Rb8 12.d3 Ba7 13.Nd5+= Ne8 14.Qc2 Ne7 15.Rfc1 c6 16.Nf4 Qd7 17.h3 Bf5 18.e4 Bg6 19.d4 d5 20.Ne5+– Qd6 21.c5 Qf6? 22.Nfg6+– Ng6 23.Nd7 Qf4 24.e5 f6 25.g3 Qe4 26.Qe4 de4 27.Bc4 Kh8 28.e6 Ne7 29.Nf8 Nc7 30.Nd7 Ncd5 31.Nb8 Bb8 32.Bc3 Nc3 33.Rb7 (33.Rb7 Bg3 34.Rc3+–) 1–0. b4_player – opponent, gamecolony.com, 2008.

5.Bb2 Nbd7 6.e3 c5 7.Be2 Ba5 8.Nf3= Bc7 9.0–0+= a6 10.Nc3 b6 11.d4 Bb7 12.d5 Ne5 13.a4 0–0+= 14.Rb1 Re8 15.h3 h6 16.Qc2 Nh7 17.Nd1 Bc8+= 18.Ne5 de5 19.Bd3 Nf6 20.f3 Bd6 21.Nf2 Kh8 22.Ba1 Ng8 23.f4 ef4+= 24.ef4 Bf4 25.Ne4 Be5? 26.Be5+/– Re5 27.Rf2 Qh4?? 28.Rf3?? Bd7 29.Rbf1 f5 30.Nd6 Qf6 31.Nf5 Bf5 32.Bf5 Qg5 33.Be6 Nf6 34.Rf5 Rf5+= 35.Qf5 Qg3 36.d6 Rd8 37.d7 Qe3 38.Kh1 Qd4 39.Qg6 Qe5 40.Rf6 gf6?? 41.Qe8!? Re8?? 42.de8Q Kg7 43.Qf7 (43.Qf7 Kh8 44.Qg8#; 43.Qg8#) 1–0. Fugly – blueknight, Caissa.com, 2004.

5.Bb2 Ne4 6.Nf3 Bg4 7.Bg7 Rg8 8.Bb2 Nc6 9.h3 Bf3 10.gf3 Nf2 white timed out 0–1. chessxliv (2130) – mberlin (2305), net–chess.com, 2014.

5.Bb2 0–0

6.a3 Bc5 7.e3 Be6 8.d4 Bb6 9.Nf3 Bg4 10.Nbd2 Nc6 11.Bd3 Ba5 12.0–0 Bd2 13.Qd2 Bf3 14.gf3 Nh5 15.Kh1 Qh4 16.Rg1 Ne7 17.Rg4 Qh3 18.Qd1 Nf6 19.Rg3 Qd7 20.d5 Nh5 21.Rg5 g6 22.f4 Nf4? (Better is 22...Ng7+–) 23.ef4 h6 (23...f6 24.Rg1 Kh8+–) 24.Qh5 Kh7 25.Rag1 Rg8 26.R1g4 (26...f6 27.Rg6 Rg6 28.Rg6 Nf5 29.Rh6 Kg8 30.Rh8 Kg7 31.Qh7) 1–0. marekt – djiby, Caissa's Web, 2004.

6.a3 Bc5 7.e3 Bf5 8.Qf3 Be4 9.Bf6 Bf3? (Better is 9...Qf6 10.Qf6 gf6+/–) 10.Bd8+– Bg2 11.Bg2 Rd8 12.Bb7 Nd7 13.Ba8 Ra8 14.d4 Bb6 15.Nd2 Ba5 16.Ngf3 Nf6 17.Ke2 Rb8 18.Rab1 Bb6 19.c5 dc5 20.dc5 Nd5 21.Rhc1 Re8 22.cb6 cb6 23.Rb5 Nf4 24.Kf1 Nd3 25.Rc7 Ra8 26.Rd5 Nb2 27.Ra7! Rc8 28.Rdd7 Rf8 29.Ng5 h6 30.Nf7 Nd1 31.Ke1 Nc3 32.Ne5 Rf5 33.Rg7 Kf8 34.Ng6 Ke8 35.Ra8 1–0. marekt – uniquegambit, ChessWorld.net, 2004.

6.Qb3 Nc6 7.e3 Re8 8.Be2 a5 9.Nc3 Nd7 10.a3 Nc5 11.Qc2 Bc3 12.Qc3 f6 13.Bh5 Re5 14.Bd1 Bf5 15.d4= Nd3 16.Kf1 Re8? 17.Bc2+– Nb2 18.Bf5 Na4 19.Qb3 g6 20.Bc2 Nb6 21.c5 Nc4 22.Qc4 d5 23.Qb5 Rb8 24.Nf3 f5 25.Bd3 f4 26.ef4 Qf6 27.g3 Re6 28.Qa4 b6 29.Rb1 bc5 30.Rb8 Nb8 31.Qa5 c4 32.Qc7 Nc6 33.Bc2 Re7 34.Qb6 Re6 35.a4 h6 36.Qc5 Qd8 37.f5 gf5 38.Bf5 Rf6 39.Nh4 Ne7 40.Bc2 Rc6 41.Qb4 Rf6 42.f4 Rb6 43.Qc3 Nc6 44.Kf2 Nb4 45.Bf5 Nc6 46.Be6 Kh8 47.Qd2 Qb8 48.Kf3 Rb2 49.Qd1 Qe8 50.Re1 Rh2 51.Bd5 Qh5 52.Ke4 Qe8 53.Kf5 Qd7 54.Be6 Nd4 55.Ke4 Qe6 56.Kd4 Qg8 57.Rg1 Rb2 58.Qe1 Qd8+/– 59.Kc3 Rb3 60.Kc4 Qd3 61.Kc5 Rc3 62.Qc3 Qc3 63.Kd5 Qd3 64.Kc6 Qa6 65.Kd5 Qb7 66.Ke5= Qe7 67.Kd5 Qb7 68.Ke5 Qe7 69.Kd5 Qb7 (69...Qd7 70.Ke5=) ½–½. Sargon Iv,Ib Pc/Xt – Mephisto,Mo Carlo, Debrecen, 1992.

6.Qb3 Nc6 7.Nf3 Be6 8.a3 Bc5 9.d4 (< 9.Qb7 Na5 10.Qb5 c6–+) 9...Bb6 10.d5 Na5 11.Qc2 Bg4 12.e3 Bf3 13.gf3 c6 14.Rg1 cd5 15.cd5 Rc8 16.Qf5 Kh8?? (Better is 16...Ne8 17.Bd3 g6+/–) 17.Bd3+– (17...Rc1 18.Bc1+–) 1–0. marekt – guest876, ICC, 2003.

6.Nc3 Re8 7.Nf3 Nc6 8.e3 Be6 9.Be2 d5 10.cd5 Nd5 11.0–0 Bg4 12.Qb3 Be6 13.Bc4?? Na5–+ 14.Qa4 Nc4 15.Nd5 Nb2 16.Qb4 Nd3 (16...Nd3 17.Qc3 Qd5 (17...Bd5?! 18.Qd3 Bf3 19.Qd8 Rad8 20.gf3–+) 18.Qc7 Rac8–+; 16...Qd5?! 17.Qb2 Bg4 18.Nd4=+; 16...Bd5?! 17.Qb2 b6 18.Ne1–/+) 0–1. Kleine,Joachim – Meisinger,Peter (1710), DESC, 2000.

6.Nc3 Bf5 7.f3 Re8 8.g3 (8.Qb3 Na6 9.e4 Nd7+=) 8...c5 9.Bh3 Bh3 10.Nh3 Nc6 11.Nf4 (11.e4 Ne5 12.Qe2 Bc3 13.Bc3 d5 14.cd5 Nd5+=) 11...Nd4 (better is 11...Ne5–+) 12.0–0 Bc3 13.dc3 (13.Bc3 Ne6 14.Ne6 fe6=) 13...Ne6 (13...Nc6 14.e4+=) 14.Nd5 Nd5 15.cd5 Nf8 16.c4 Ng6 (16...Re3 17.Rf2+=) 17.Qc2 a6 18.Qc3 f6 19.e4 b5 20.a4 bc4 21.Qc4 Ne5 22.Be5 fe5 23.a5 Qd7 (23...Rf8 24.Qc3=) 24.Rfb1 (24.Rab1 Rf8+/–) 24...Ra7 (24...Rf8 25.Ra3=) 25.Rb6+/– Exerts pressure on the isolated pawn 25...Rea8 26.Rab1 Rc7 27.Ra6 Ra6 28.Qa6 Ra7 (28...Kf7 29.Qf1 Rc8 30.a6+–) 29.Qc6 Qc7?? (better is 29...Qd8 30.a6 h6+–) 30.Qe8# 1–0. Peter,Falco (1740) – Lenz,Jonas, Rhein Main op, 2009.

6.e3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2).

6.Nf3 Nc6 7.e3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6 7.Nf3).

6.Nf3 d5 7.e3 Bg4 8.h3 Bf3 9.Qf3 Ne4 10.a3 Ba5 11.Bd3 c6 12.Be4 de4 13.Qg4 f6 14.Qe4 Nd7 15.0–0 Ne5 16.Be5 fe5 17.Qe5 Bc7 18.Qe6 Kh8 19.d4 Qd6 20.Qd6 Bd6 21.Nc3 1–0. Wall – Millimaci, Mt View 1987.

6.g3 b6 7.Bg2= c6 8.a3 Ba5 9.Nf3 Be6 10.Qa4 d5 11.cd5 Bd5 12.Nc3 Na6 13.Nd5+= cd5 14.0–0 Nc5 15.Qh4 Nfe4 16.Qg4 g6 17.d3 Nc3 18.Nh4 Nb3 19.Bc3= Na1?? 20.Ba1+– Rc8 21.Nf5 h5 22.Qd4 f6 23.Bd5 Kh7 24.Nh4 Rc5 25.Be4 Qd4 26.Bg6 Kg7 27.Bd4 Rc2 28.Bh5 Kh6 29.Bf3 f5 30.Rb1 f4 31.Rb5 Kh7 32.Rh5 Kg8 33.Bd5 Rf7 34.Rh8# 1–0. Bousios,Hristos – Porfiriadis, Greece, 1976.

6.g3 d5!? –/+.

6.a3 Ba5

7.e3 Nc6 8.Nf3 Bg4 9.Be2 Re8 10.0–0 Qd7 11.Bf6+/– gf6 12.d4 f5 13.Nbd2 Bh5 14.Nb3+/– b6 15.Rc1 Rab8 16.d5 Nd8 17.Na5+– ba5 18.Qd2 Qa4 19.Nd4 Bg6? 20.Nb5 (20.Nb5 Rb5 21.cb5 Qa3 22.Rc7+–) 1–0. kazimierski – foxzy, playchess.de, 2001.

7.e3 Re8 A) 8.Be2 A1) 8...Nc6 9.Nf3 Qe7 10.0–0 Bg4 11.d3 d5 12.cd5 Nd5; A2) 8...Qe7 9.Nf3 Nc6 10.0–0 Bg4 11.Nc3 Qe6 12.d3 a6; A3) 8...d5 9.Nf3 Nc6 10.0–0 Be6 11.Qc2 dc4 12.Bc4 Bc4; B) 8.Nf3 B1) 8...Qe7 9.Be2 Nc6 10.0–0 Bf5 11.d4 a6 12.Qb3 Rab8; B2) 8...Bf5 9.Be2 Nc6 10.0–0 Rb8 11.d3 b5 12.cb5 Rb5; B3) 8...Nc6 9.Be2 Bf5 10.0–0 Qe7 11.d4 Ne4 12.Bd3 Bg4; 7...Nbd7 8.Nf3 d5 9.cd5 Nd5 10.Qc2 Qe7 11.Nc3 Nc3 12.Bc3 Bc3.

7.f3 Nc6 A) 8.e3 A1) 8...Re8 9.Nc3 Be6 10.Qb3 Rb8 11.Nd5 Nd7 12.Qc2 Nc5; A2) 8...Qe7 9.Nc3 Be6 10.Qb3 Nd4 11.Qa4 Bb6 12.Nge2 Bd7; A3) 8...d5 9.Qb3 d4 10.e4 Bb6 11.Bd3 Ne5 12.Bf1 a5; B) 8.Qb3 d5 9.cd5 Nd5 10.e4 Nb6 11.Qd3 Qh4 12.g3 Qe7; C) 8.Nc3–/+ C1) 8...Re8 9.e4 Bc3 10.dc3 Nd7 11.Ne2 Nc5 12.Nf4 f5; C2) 8...Nh5 9.g3 Re8 10.e3 Nf6 11.Nd5 Ne5 12.Be2 c6; C3) 8...Be6 9.e4 Bb6 10.Rb1 Re8 11.Be2 Rb8 12.Qc2 Nd4.

7.f3 Be6 A) 8.e3 A1) 8...Nc6 9.Nc3 Re8 10.Qb3 Rb8 11.Nd5 Nd7 12.Qc2 Nc5; A2) 8...Re8 9.Ne2 Nc6 10.Nf4 d5 11.Ne6 Re6 12.Qb3 d4; A3) 8...Nbd7 9.Nc3 Nb6 10.Qb3 d5 11.cd5 Nfd5 12.Qc2 Re8; B) 8.Qb3 Nbd7 9.e3 Rb8 10.Qb5 c6 11.Qg5 a6 12.Nh3 Qb6; C) 8.e4 C1) 8...Re8 9.Ne2 c6 10.Qc2 Nbd7 11.Nd4 d5 12.Be2 Qb6; C2) 8...c6 9.Qc2 d5 10.cd5 cd5 11.e5 Nfd7 12.f4 Qh4; C3) 8...Nc6 9.Qc2 Bb6 10.Ne2 Re8 11.d4 Bd7 12.Nd2 Qe7.

7.f3 Re8 A) 8.Kf2 A1) 8...c6 9.e3 Be6 10.Qc2 d5 11.c5 Qe7 12.Bd4 b5; A2) 8...Nc6 9.e4 Re4 10.g3 Re8 11.Kg2 d5 12.c5 Bf5; A3) 8...d5 9.cd5 c6 10.Qa4 Nd5 11.e4 b5 12.Qd1 Qg5; B) 8.Qc2 B1) 8...d5 9.Qd3 dc4 10.Qd8 Rd8 11.Bf6 gf6 12.e3 b5; B2) 8...Nc6 9.e4 d5 10.cd5 Nd5 11.Qd3 Ne5 12.Be5 Re5; C) 8.Nc3 Bc3 9.Bc3 Ne4 10.Bd4 Nc6 11.Be3 Nc5 12.Rc1 Be6.

7.f3 Bf5 8.Qb3 Bb1 9.Qb7 Nbd7 10.Rb1+= Nc5 11.Qb5 Bd2 12.Kd2+= Rb8 13.Qc6 Nb3 14.Kc2 Rb6 15.Qa4 Nc5 16.Qa5 Qd7 17.Bf6 Rb1 18.Kb1 Qf5 19.e4 Rb8 20.Bb2 Qf6?? 21.Qb4 Rb4 22.ab4 Qg5 23.Bc1 Qd8 24.bc5 Qb8 25.Kc2 dc5 26.Ne2 a5 27.Nc3 Qb4 28.Bf4 a4 29.Be2 Qb3 30.Kd3 h6 31.Rb1 Qa3 32.Kc2 1–0. marekt – MrMailman, GameColony.com, 2002.

5.Bb2 c5

6.e3 Nc6 7.a3 Ba5 8.Nf3 d5 (8...0–0 9.Be2+=) 9.cd5= Qd5 10.Nc3 Bc3 11.Bc3 0–0 12.Be2 Ne4 13.Bb2 Bg4 14.d3 Ng5 15.Ng5 Be2 16.Qe2 Qg5 17.0–0 Rae8 18.Qf3 Qd8 (18...Rd8 19.Rfd1=) 19.Qg3 (19.Rac1 Qd6=) 19...f6 20.Rfd1 Qb8 (20...Rf7 21.Rab1=) 21.Qb8 Rb8 22.Rac1 b6 23.d4 Ne7 24.a4 cd4 25.Rd4 (25.Rc7 Nd5 26.Ra7 de3 27.fe3 Rbd8+= (27...Ne3? 28.Rdd7 Nf5 29.g4+–)) 25...Rbc8= 26.Rdc4 Rc4 27.Rc4 Rd8 28.Rd4 ½–½. Schenkel,Noah (1815) – Price,Brennan, Lugano SUI, 2014.

6.e3 Nc6 7.Nf3 Bg4 8.Be2 d5 9.cd5 Qd5 10.Bf6 gf6 11.0–0 0–0–0 12.a3 Ba5 13.Qa4 Rhg8= 14.e4 Qh5 15.Qb3 Bh3 16.Ng5 Bg4 17.Nf3 Ne5 18.Ne5 Be2 19.Nf7 Rg2!! (19...Rg2 20.Kg2 Rg8 21.Qg3 Rg3 22.fg3 Bf1 23.Kf1 Qf7–+; 19...Bf1?! 20.Nd8 Rd8 21.Kf1 Qh2 22.Qe6 Kb8 23.Qf6 Qh1 24.Ke2 Qg2 25.Qf3=+) 0–1. Rosner,Dirk – Tannes, corr, 1989.

6.Nf3 0–0 7.e3 Re8 8.Be2 Nc6 9.0–0 Be6 10.Qc2 d5 11.cd5 Bd5 12.Rd1 Bf3 13.Bf3+= Qe7 14.Bc6 bc6 15.Na3 Rad8? 16.Nc4+– (16.Nc4 Qc7 17.Bf6 gf6 18.a3+–) 1–0. pierred – ftyre, slowchess.com, 2006.

6.g3 Nc6 7.Bg2 Be6 8.Qc2 Ba5 9.a3 Qd7 10.Bf6 gf6 11.Nf3 Bd8 12.Nc3 Bc4 13.0–0 Be6 14.e4 0–0 15.Ne2 f5 16.d3 Bf6 17.Rad1 Nd4 18.Nfd4 cd4 19.Nf4 Rfc8 20.Qd2 Rc7 21.Nh5 Qd8 22.Qh6 Bh8 23.f4 Rac8 24.Bh3 Rc5 25.Rd2 Qa5 26.Rb2 b6 27.Bf5 Bf5 28.ef5 Rf5 29.g4 Rb5?? 30.Rg2 Qc3 31.g5 f6 32.gf6 Kf7 33.f5 Rf8 34.Qh7 (34...Bg7 35.Qg7 Ke8 36.Qe7#) 1–0. Sturc,Gustav (2205) – Ostradicky,Dusan (1895), SVK–ch Prievidza, 1998.

5.Bb2 Nc6

(--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 Nc6 5.Bb2 d6).

6.e3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6).

5.Bb2 Be6

6.Nc3 Nc6 7.e3 a6 8.d4 Ne4=+ 9.Bd3?? Nc3–+ (9...Nc3 10.Qc2 Bd3 11.Qd3 Na4 12.Kf1 Nb2–+; < 9...Bc3 10.Bc3 Nc3 11.Qd2 Bd3 12.Qd3–+) 0–1. gtate (2050) – dmendiola (2090), net–chess.com, 2006.

6.e3 c5 7.Nf3 Nc6 8.Be2 0–0 9.0–0 Rb8 10.a3 Ba5 11.Qc2 a6 12.Ng5+= h6?? 13.Bf6+– Qf6 14.Qh7# 1–0. b4_player – opponent, gamecolony.com, 2007.

6.e3 c5 7.Nf3 Nc6 8.Be2 0–0 9.0–0 d5 10.cd5 Bd5 11.Nc3 Be6 12.a3 Ba5 13.d3 Bc7 14.Nd2 Qd6 15.g3 Bh3 16.Re1 a6 17.Nde4 Ne4 18.Ne4 Qd5 19.Bf3+/– Qf5 20.Rc1 b6 21.Nc5! Qg6? 22.Na6! Ra6 23.Rc6 Bd6 24.Qa1 Qf5? 25.Be4 Qe6 26.Bg7 Rd8 27.Bd4 Ra3 28.Qa3 Ba3 29.Re6 fe6 30.Bb6 Rb8 31.Bc7 Rc8 32.Be5 Rc2 33.d4 Bb4 34.Bc2 Be1 35.Be4 Bc3 36.Bg2 Bf5 37.h4 Kf7 38.e4 Bg6 39.Bf3 h6 40.h5 Bh7 41.Kf1 Ke7 42.Ke2 Kd7 43.Ke3 Bg8 44.Bf4 Bb2 45.Kd3 Ba3 46.Bh6 Bb4 47.Bg4 Be1 48.Ke3 Bh7 49.d5 Bg8 50.Bf4 Bc3 51.de6 Be6 52.Be6 Ke6 53.f3 Kf7 54.g4 Bb2 55.Kd3 Kf6 56.Kc4 Ba3 57.Kd5 Bb2 58.g5 Kg7 59.Be5 Be5 60.Ke5 Kf7 1–0. hal1958 – RandyDzicek, HCL–A1555 playchess.de, 2003.

6.e3 c5 7.Nf3 Nc6 8.Be2 0–0 9.0–0 d5 10.cd5 Bd5 11.d3 a6 12.Qc2 b6 13.Nbd2 Re8 14.a3 Ba5 15.Rad1 Qe7 16.Nc4 Ng4 17.Nfd2 Qh4 18.Bg4 Qg4 19.f3 Qg6 20.e4 Be6 21.Na5 Bh3 22.Ndc4 ba5 23.a4 Nb4 24.Qe2 Nd5 25.Qd2 Nf4 26.Ne5?? Re5 27.Be5+/– Ng2 28.Bg3 h5 29.Rf2 Nh4? 30.Qf4 Bg4?? 31.fg4 hg4 32.Bh4 Re8 33.Rg2 c4 34.Rg4 Qb6 35.Qf2 Qb3 36.dc4 Qd1–+ 37.Qe1 Qg4 38.Bg3 Re4 39.Qa5 Qd1 40.Kg2 Qe2 41.Kh3 Qf1 0–1. hal1958 – RandyDzicek, HCL–A1539 playchess.de, 2003.

6.e3 Nc6 7.a3 Ba5 8.Nf3 0–0 9.Bd3 Ng4 10.Qc2 h6 11.0–0 Nce5 12.Ne5 Ne5 13.Be2 Qh4 14.d4 Ng4 15.h3 Nf6 16.d5 Bd7 17.Nd2 Rfe8 (17...Bd2 18.Qd2 Rfe8 19.Qb4=) 18.Nf3 Qe4 19.Qb3 Qe7 20.Qb7 Bb6 21.Qa6 Ne4 22.Bd4 Rab8 23.Rab1 Nc5 24.Bc5 Bc5 25.Rb8 Rb8 26.Qa5 c6 27.Qc7 Qe8 28.Bd3 Rc8 29.Qa5 Bb6 30.Qd2 Bc5 31.Ra1 Rb8 32.dc6 Bc6 33.Nd4 Ba8 34.Qd1 Qe5 35.Rb1 Rb1 36.Qb1 d5 37.cd5 Bd5 38.Qb5 Bd6 39.g3 g6 (39...Ba3?? 40.Bc4+–) 40.a4 Ba8 41.Qe5 Be5 42.f4 Bd6 43.Kf2 a5 44.Bf1 Be4 45.Bg2 Bd3 46.Bd5 Kf8 47.Kf3 Be7 48.e4 Bc5 49.Nc6 Bc2 50.Na5 Bd1 51.Kg2 Ba4 52.Nb7 Bd4 53.Nd6 f6 54.g4 Bc2 55.Nb5 Bb6 56.e5 Ke7 57.Kf3 Bc5 58.Bc4 h5 59.gh5 gh5 60.Nc3 fe5 61.fe5 Bf5 62.h4 Bg1 63.Ne2 Bg4 ½–½. marekt – FABOLOUS, ChessWorld.net, 2003.

6.e3 Nc6 7.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6 7.Nf3 Be6).

6.e3 Nbd7 7.a3 Ba5 8.Nf3 Qe7 9.Nd4 Ne5?? (Better is 9...0–0=) 10.Qa4+– c6 (10...Qd7 11.Qa5 Bc4 12.Bc4 Nc4 13.Qb4 Nb2 14.Qb7 Nd3 15.Ke2 Nf4 16.ef4+–) 11.Qa5 Nc4 (11...Ne4 12.d3 b6 13.Qa4+–) 12.Bc4 (12.Ne6? Na5 13.Ng7 Kd7–+) 12...Bc4 13.Nf5 Qe4 (13...Qf8 14.Qb4 Ba6+–) 14.Nd6 (14...Kd7 15.Ne4 Ne4 16.Qf5 Be6 17.Qe4+–) 1–0. orane (1995) – DYPAK (1850), Live Game Caissa's Web, 2004.

6.Nf3 0–0 7.e3 Nbd7 8.Be2 d5 9.cd5 Bd5 10.0–0= Re8 11.a3 Ba5 12.Qc2 c6 13.Nc3 Be6 14.Ng5 Qc7 15.Bd3+= h6 16.Ne6 Re6 17.Ne4 Rae8 18.Ng3 Kh8 19.Bc4 R6e7? 20.Nf5+– b5 21.Ne7 Re7 22.Bb3 c5 23.a4 c4 24.Ba2 a6 25.ab5 ab5 26.Qf5 Qc6? 27.Bc4! (27.Bc4 bc4 28.Qa5+–) 1–0. chem1st – Old Sisyphus, ChessWorld.net, 2005.

6.Nf3 Bc4 7.a3 Bc5 8.d4 Bb6 9.Qa4 Bb5 10.Qb5 c6 11.Qb3 Nbd7 12.e3 Ba5 13.Bc3 Bc3 white timed out 0–1. chessxliv (2100) – smoothoperator (2100), net–chess.com, 2014.

6.e3 0–0

7.Nf3 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6 7.Nf3 Be6).

7.Nf3 d5 8.cd5 Nd5 9.a3 Ba5 10.Be2 c5 11.0–0 Nc6 12.Qc2 Qe7 13.Bb5 Rac8 14.d4?? (better is 14.Rc1=) 14...cd4–+ 15.ed4 (15.e4 Ne5! 16.Qe2–+) 15...Nd4! 16.Qd1 (16.Bd4 Rc2 Discovered attack; 16.Nd4 Rc2 Discovered attack) 16...Nb5 (better is 16...Nc2–+) 17.a4?? (17.Qa4–+) 17...Nbc3 18.Nc3 Bc3 (18...Nc3 19.Bc3 Bc3 20.Rc1–+) 19.Bc3 Nc3 (19...Nc3 20.Qd2 Rfd8–+) 0–1. madik (1610) – kupovgeorge (1805), gameknot.com, 2014.

7.Nf3 Nbd7

8.Be2 c6 9.0–0 d5 10.Nd4 Qe7 11.Ne6 fe6 12.d4 Ne4 13.f3 Nef6 14.Qb3 Bd6 15.Nc3 dc4 16.Bc4 Rac8 17.Be6 Kh8 18.Ne4 Rce8 19.Nd6 Qd6 20.Bf5 Nd5 21.Ba3 c5 22.Be4 Nc7 23.Qb7 Qb6 24.Qb6 ab6 25.Rfd1 Rf5 26.Bf5 (26.Bf5 Re3 27.dc5 Nc5 28.Rd8 Re8 29.Re8 Ne8 30.Rb1+–) 1–0. Vaassen,Jack – Valica,Slavo, b2–b4.com, 2004.

8.Be2 Ne4

9.0–0 Nb6 10.Qb3 c5 11.a3 Ba5 12.Qb5 Nd7 13.Qb7 Rb8 14.Qe4.

9.0–0 Nec5 10.d4 Na6 11.a3 Ba5 12.d5 Bf5 13.Qd4 f6 14.Nh4.

9.0–0 d5 10.cd5 Bd5 11.Nc3 Bc3 12.dc3 Nb6 13.Qc2 Nd6 14.Rfd1.

9.a3 A) 9...Bc5 10.0–0 d5 11.d3 Nef6 12.d4 Be7 13.c5 Ne4 14.Nc3; B) 9...Ba5 10.0–0 Nef6 11.Nc3 Ne5 12.d3 Re8 13.Nd4 Bd7 14.Nb3.

9.Qb3= Ba5 10.Qb7?? Bd2?? 11.Nfd2+= Nd2 12.Bg7 Nc5 13.Qb2 Nb1? 14.Bh6 Rb8 1–0. Bonetti,Shane – guest1810, ICC, 2002.

5.Bb2 Bf5

6.a3 Ba5 7.e3 (7.Qb3 Nbd7=) 7...Nbd7 8.Nf3 Nc5 9.Nd4 (9.Be2 0–0=) 9...Bg6 10.Nb3 Bb6 (10...Nb3!? 11.Qb3 0–0+=) 11.Nc5= Bc5 12.d4 (12.Qf3 c6+=) 12...Bb6 13.Nc3 0–0 14.Bd3 c6 15.0–0 Rc8 16.Bg6 hg6 (16...fg6 17.e4=) 17.Qf3 (17.d5 Nd7+=) 17...d5 18.cd5 Nd5 19.Nd5 cd5 20.Rac1 Qd7 21.e4 de4 22.Qe4 Rc1 23.Rc1 Re8 24.Qf4 (24.Qd3 Qd5=) 24...Qb5+= 25.Ba1 (25.Bc3 Qb3 26.Qd2 Qa3+=) 25...Qa5–/+ 26.g3? (26.Rf1 Qa3 27.Qg5 Qd6–/+) 26...Re1?? (better is 26...g5 27.Qg4 Re1 28.Re1 Qe1 29.Kg2 Qa1 30.Qc8 Kh7 31.Qf5 Kh6–+) 27.Kg2+= Qd5 28.f3 Re2 29.Kf1?? (better is 29.Kg1–/+) 29...Rh2–+ 30.Rc8 Kh7 31.Kg1 (31.g4 Ra2 32.Qe4 Qb5 33.Kg1 Ra1 34.Kf2 Qf1 35.Ke3 Re1 36.Kd2 Qf2 37.Kc3 Re4 38.fe4 Bd4 39.Kd3 Qe3 40.Kc2 Qe2 41.Kc1 Bb2 42.Kb1 Ba3 43.Rc2 Qd1 44.Ka2 Qc2 45.Ka3 a5 46.e5 b5 47.e6 b4) 31...Qa2 (31...Qa2 32.Qh4 Rh4 33.gh4 Qa1 34.Kf2 Qd4 35.Ke2 Qe3 36.Kd1 Qf3 37.Kd2 Qf4 38.Ke1 Ba5 39.Ke2 Qg4 40.Ke3 Qc8–+) 0–1. Hilbert,Stephan J (1715) – Bartsch,Reinhard Andrea (2015), FICGS, 2015.

6.a3 Bc5 7.e3 =.

6.e3 Nc6 7.Nf3 0–0 8.Be2 Re8 9.a3 Ba5 10.0–0 Ne4 11.d3 Nc5 12.Nc3 h5 (12...Ne5 13.e4 Bg4 14.Ne5 Be2 15.Qe2 de5 16.Rad1=) 13.Na4 Ne6 (13...h4 14.Nc5 dc5 15.Qb3+=) 14.d4+/– d5 15.Qb3 Be4 16.Qb7 dc4 17.Qa6 (17.Bc4 Ned4 18.ed4 Nd4 19.Qe4 Re4 20.Bd4 Rd4 21.Nd4 Qd4–+) 17...Ng5 18.Qc4 Bd5 19.Qc2 Nf3 20.Bf3 Bf3 21.gf3 Qd5 22.Rac1 Ne7 23.Qd1 Bb6 24.Nb6 cb6 25.e4 Qd6 26.d5 Ng6 27.Qd4 Ne5 28.Kh1 Qf6 29.Qe3 Qf3= 30.Qf3 Nf3 31.d6 Rad8 32.Rcd1 Re4=+ 33.Rd3 Nh4 34.Rg1 Ng6 35.Rd2 Re6 36.Rgd1 Rd7 37.Rd4 Kf8 38.f4 Rf6 39.Rd5 Rf4 40.Rh5 Rf2 41.Bc1 Re2 42.Bg5 f6–+ 43.Bc1 Ne5 44.Rh8 Kf7 45.a4 Ng4 46.Rc8?? Nf2 0–1. ARMAGEDON_8 – FABOLOUS, ChessWorld.net, 2003.

6.e3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Bf5).

6.e3 Nc6 7.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6 7.Nf3 Bf5).

6.Nf3 0–0 7.e3 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6 7.Nf3 Bf5).

6.Nf3 Nbd7 7.Qb3 a5 8.Qe3 Be6 9.a3 Bc5 10.d4 Ba7 11.Ng5 Qe7 12.Qd3 h6 13.Ne6 Qe6 14.e3 0–0–0 15.Nd2 d5 16.c5 g5 17.Qb5 b6 18.cb6 Bb6 19.Nb3 Ne4 20.Bd3 Nb8 21.Rc1 f5 22.0–0 Rhg8 23.f3 Nd6 24.Qb6 Qe3 25.Kh1 Rd7 26.Ba6 Na6 27.Qa6 Kd8 28.Qa8 Nc8 29.Nc5 Re7 30.Qd5 Nd6 31.Nb7 Kc8 32.Nd6 Kd8 33.Ne4 Kc8 34.Qa8 Kd7 35.Nf6 (35...Ke6 36.d5 Kf7 37.Qg8#) 1–0. marekt – VASSILIOS, ChessWorld.net, 2004.

5.Bb2 Bg4

6.Qb3 Nc6 7.a3 Bc5 8.e3 0–0 9.d4 Bb6 10.Bd3 Qe7 11.Ne2 Na5 12.Qc2 Bh5 13.0–0 Bg6 14.Bg6 fg6 15.Nd2 Rae8 16.Bc3 Ng4 17.c5 dc5=+ 18.Qa2 Kh8–/+ 19.dc5 Bc5 20.Nf3 Be3 21.fe3 Qe3 22.Kh1 Nf2 23.Kg1? Ne4–+ 24.Kh1 Nc3 25.Nc3 Qc3 26.Rfc1 Qe3 27.Rc7 Re7 28.Re7 Qe7 29.Rd1 Nc6 30.Qb3 –+. Dlugolecki,Grzegorz – Godoy,Jose Antonio, UECC, 1999.

6.f3 Be6 7.Qa4 Nc6 8.e4 –/+.

6.f3 Bh5 7.Qb3 Nc6 8.a3 Bc5 9.Qb7 Na5 10.Qa6 Rb8 11.Bf6 Qf6 12.Nc3 Nb3 13.Qa4 Kd8 14.Rb1 Qd4 15.Ne4 Re8 16.e3 Re4+= 17.Rb3 Rb3 18.Qb3 Re5 19.a4 Qa1 20.Ke2 f5 21.Nh3 g5? 22.Ng5+– f4 23.Ne4?? Re4–/+ 24.g4 fe3 25.fe4?? Bg4–+ 26.Kd3 Qd4 27.Kc2 Bd1!! 28.Kb1 Bb3 (29.de3 Qe4 30.Ka1 Qh1 31.Kb2 Ba4 32.Ka2 Qf1 33.Kb2 Qf2 34.Kb1 Ba3 35.c5 Qb2#) 0–1. Frosinos,Ioannis – Mastrovasilis,Dimitrios (2095), Kavala op 5th, 1995.

5.Bc3 Bc3

6.Nc3 b6 7.Nf3 0–0 8.g3 Nbd7 9.Bg2= Bb7 10.0–0 Rb8 (10...Nc5 11.d3 Qd7 12.Qd2 h6 13.Nd4 d5) 11.Qc2 (11.d4 Re8= (11...Ne4 12.Ne4 Be4 13.Nd2 Bg2) 12.Qa4 Ne4 13.Ne4 Be4; 11.Rc1 Nc5 12.d4 Nce4 13.d5 Qd7) 11...Bf3 (11...Ne5 12.Qb3 Re8 13.Ne5 de5) 12.Bf3 (12.ef3 Ne5 13.Nd5 c5) 12...Ne5 13.d3 (13.Bg2 Nc4 14.Nb5 d5=; 13.Rac1 Re8) 13...Nf3+= 14.ef3 Rc8 15.Qb3 c6 16.a4 Re8 17.Rfe1 Qd7 18.Kg2 (18.a5 Re1 19.Re1 ba5+=) 18...Re6 (18...Re1 19.Re1 d5 20.h3+=) 19.Re3 (19.a5 ba5 20.Ne4 Ne4 21.fe4 Rh6=) 19...Rce8 20.Rae1 h6 21.Qa2 Nh7 (21...d5 22.d4+=) 22.a5= Ng5 23.Re6 (23.Ne4!?=) 23...Re6–/+ 24.Re6 Qe6 (worse is 24...fe6 25.f4 Nh7 26.ab6 ab6 27.Qa6+=) 25.g4? (better is 25.Qe2!?+=) 25...Qf6–+ 26.f4 Qf4 (26...Qc3?! 27.ab6 ab6 28.Qa8 Kh7 29.fg5 Qd3 30.Qc6 hg5 31.h3+=) 27.ab6? (better is 27.Qe2–+) 27...Qf3 28.Kf1 (28.Kg1 ab6 29.h4 Nh3 30.Kf1–+) 28…Qd3 (28...Qd3 29.Qe2 Qh3 (29...Qc3?! 30.b7 Qh3 31.Ke1 Qc3 32.Kf1 Qh3 33.Ke1 Qc3 34.Kf1=) 30.Kg1 ab6–+) 0–1. Svahn,Stefan – Skogli,Pal, Open NOR–ch, Oslo NOR, 2001.

6.Nc3 Nc6 7.d4 d5 (7...0–0 8.e3=) 8.e3= 0–0 9.Nf3 a6 (9...Re8 10.cd5 Nd5 11.Nd5 Qd5 12.Qa4=) 10.Bd3 (10.Rc1 Be6=) 10...Nb4 (better is 10...dc4 11.Bc4 b5=) 11.Bh7 (11.Nd5 Nfd5 12.cd5 Nd3 13.Qd3 Qd5 14.0–0=) 11...Kh7?? (better is 11...Nh7 12.Rb1 c5–/+) 12.Qb1+/– Kg8 13.Qb4 c6 (13...dc4 14.Qc4 Re8 15.Rc1+/–) 14.cd5 Nd5 15.Nd5 Qd5 16.0–0 a5 (16...Re8 17.Rfc1+/–) 17.Qe7 b5 (17...Qe6 18.Qc5+/–) 18.Qh4 (18.Rfc1 Be6+–) 18...f6 (18...Re8 19.Rfc1 Bf5 20.Ne5+–) 19.Rfc1 Bb7 (19...Be6 20.Rc2+–) 20.Qg3 (20.Rc5 Qe6+–) 20...b4 (20...Qe6 21.Rc5+–) 21.Rc5 Qe4 (21...Qe6 22.Nh4+–) 22.Rac1 (22.Nd2 Qe6+–) 22...a4 23.Nh4 Kf7?? (23...Rfd8 24.Nf5 Rd7+–) 24.Nf5 (24.Nf5 Qf5 25.Rf5+–) 1–0. Wall,Bill – Nama,Ali, internet, 2006.

6.Nc3 Bf5 7.e3 0–0 A) 8.Be2 Re8 9.Nf3 Qe7 10.0–0 c5 11.d4 Nc6=; B) 8.Nf3 Re8 9.d4 c5 10.Be2 Nc6 11.0–0 Qe7=.

6.Nc3 Bf5 7.Nf3 0–0 8.e3 Nc6 9.Be2 Nb4 10.0–0 Bd3 11.Qb3+/– Be2 12.Ne2 a5 13.a3 Nc6 14.Qb7 Ne5 15.Ne5 de5 16.d4 Rb8 17.Qf3 e4 18.Qf5+– Rb2 19.Nc3 Re8 20.Qa5 Qb8 21.Rab1 h6 22.Rb2 Qb2 23.Nb5 c6 24.Nd6 Rb8 25.Qc7 Rf8 26.Qc6 Qa3 27.Ne4 Nh7 28.c5 Qd3 29.Qb7 Ng5 30.Ng5 hg5 31.c6 Qc4 32.c7 g6 33.d5 Kg7 34.d6 Rh8 35.d7 Qh4 36.h3 g4 37.Qb2 f6 38.c8Q Rc8 39.dc8Q gh3 40.Qbb7 Kh6 41.f4 h2 42.Kh1 g5 43.Qf5 Qe1 44.Qbh7# 1–0. pierre – foXXXy Tina, internet, 2008.

6.Nc3 0–0

7.d4 c5 8.Nf3 cd4 9.Nd4 Nc6 10.Ndb5 Be6 11.Nd6 Qa5 12.Qd2 Rad8 (Better is 12...Rab8!? 13.Rd1 Rfd8=+) 13.Nb7+/– Rd2 14.Na5 Rc2 15.Nc6 Rc3 16.e3 Bc4 17.Na7 Bf1 18.Rf1 Ra8 19.Nb5 Rc5 20.Nd4 Rca5 21.Ke2 Ra2 22.Ra2 Ra2 23.Kf3 h6 24.Rb1 Kh7 25.Rb7 Kg6 26.Nc6 Ne8 27.Ne5 Kf6 28.Nf7 Ra5 29.e4 Ra3 30.Kf4 g5 31.Kg4 Kg6 32.Nh8 Kf6 33.e5! Ke5 34.Re7 Kf6 35.Re8 Ra4 36.Kf3 Rf4 37.Kg3 Kg7 38.f3 h5 39.Rd8 h4 40.Kh3 Rb4 41.g3 hg3 42.hg3 Rb6 43.Kg4 Rb3 44.f4 gf4 45.gf4 Rb1 46.Kg5 Rg1 47.Kf5 Rh1 48.Ng6 Rh5 49.Kg4 Rh1 50.Kg5 Rg1 51.Kf5 Rg6 52.Rg8!! Kg8 53.Kg6 Kf8 54.f5 Kg8 55.Kf6 Kf8 56.Ke6 Ke8 57.f6 Kf8 58.f7 Kg7 59.Ke7 Kg6 60.f8Q Kg5 61.Qf3 Kg6 62.Qg4 Kh6 63.Kf6 Kh7 64.Qg7# 1–0. kamret (2230) – Analogue_Bubble_Bath (1750), GameColony.com, 2003.

7.e3 c6 8.Nf3= Bg4 9.Be2 Na6 10.0–0 Nc5 11.Nd4 Be2 12.Qe2 Nce4 13.Ne4 Ne4 14.Rab1 Qd7 15.f3 Nf6 16.e4 Rfe8 17.Rfe1 b6 18.Qf2+= g6 19.Qh4 Kg7 20.Nf5 gf5 21.Qg5 Kf8 22.Qf6 fe4 23.Qh8 Ke7 24.Re4 Kd8 25.Re8 Qe8 26.Qh7 Kc7 27.Kf2 Qe6 28.Re1 Qf6 29.Qe4 Rh8 30.Qe7+– Qe7 31.Re7 Kb8 32.Rf7 Rh2 33.Re7 Rh6 34.f4 a6 35.f5 b5 36.cb5 ab5 37.Kg3 Kc8 38.Kg4 Rh2 39.f6 Rg2 40.Kf3 Rg8 41.f7 Rf8 42.Re8 Re8 43.fe8Q Kc7 44.Qe7 Kb6 45.Qd6 Kb7 46.d4 b4 47.Kf4 Kb6 48.d5 (48.d5 b3 49.Qc6 Ka5 50.Qc5 Ka6 51.ab3 Kb7 52.d6 Kb8 53.d7 Kb7 54.d8Q Ka6 55.Qdb6#) 1–0. pierre – madz123456, internet, 2008.

7.e3 Nc6 8.Rb1 b6 9.Be2 Bb7 10.Nf3 Qd7 11.0–0 Rfe8 12.Qc2 Ne5 13.Nh4 Re6 14.d4+= Ng6 15.Ng6 fg6 16.c5 Re7 17.Qb3 Kh8 18.Bb5 Qg4 19.c6 Bc8 20.Be2 Qg5 21.Bf3 Bg4 22.Qd1 Rf8 23.Bg4 Ng4 24.Rb5?? Qh4–/+ 25.h3 Nf2 26.Qe2? Ref7–+ 27.Rbb1 Nh3! 28.gh3 Qg3 29.Qg2 Qe3 30.Kh1 Qc3 31.Rf7 Rf7 32.Qe4 Qh3 33.Kg1 Qg3 34.Kh1 Qf2 35.Re1 h6 36.Rg1 g5 (36...g5 37.Qe1 Qf3 38.Kh2 Rf4–+) 0–1. Trkn – Alfred Kerber, itsyourturn.com, 2000.

7.e3 Nc6 8.Rb1 Re8 9.d4 Bg4 10.Be2 Be2 11.Nge2 Na5 12.Qd3 c5 13.0–0 Rc8 14.Rfd1 b6 15.dc5 Rc5= 16.Qd6 Qd6 17.Rd6 Nc4 18.Rd4 Rec8 19.Rb5 Kf8 20.Rc5 Rc5 21.e4 Ke7 22.f4 Rc8 23.e5 Ne8 24.Kf2 f6 25.Re4 fe5 26.fe5 Rc5 27.Na4 Rc8 28.Nd4 g6 29.Nc3 Rc5 30.Nb3 Rc8 31.Nd5 Kd7 32.Nd4 Rc5 33.Nf6 Ke7 34.Ng8 Kd7 35.Nb3 Rc8 36.Nf6 Nf6 37.ef6 Kd6 38.g4 ½–½. Rosner,Dirk – Meisinger, Tiger SC, 1999.

7.e3 Bf5 8.Qf3 Qc8 9.d4 =+.

5.Bc3 Nc6

6.Bb4 Nb4 7.Qb3 a5 8.Nf3 Bf5 9.Nd4 Bg6 10.a3 Nc6 11.Qe3 Qe7 12.Nc3 Qe3 13.fe3 Nd4 14.ed4 c6 15.e3 Ne4 16.Ne4+= Be4 17.Be2 0–0 18.Kf2 f5? 19.d3+– d5 20.de4 fe4 21.Ke1 Rf6 22.Rb1 Rf7 23.Rf1 Raf8 24.Rf7 Rf7 25.cd5 cd5 26.Rb5. pierre – lavongsachess, internet, 2008.

6.Bb4 Nb4 7.Qb3 Nc6 8.Nf3 0–0 9.e3 Na5 10.Qc3 c6 11.Bd3 Re8 12.0–0 Be6 13.Nd4 d5 14.Ne6 Re6 15.Na3 dc4 16.Nc4= Nc4 17.Bc4 Ne4 18.Qb4 Re7 19.d3 a5 20.Bf7 Kf7 21.Qc4 Qd5 22.Qd5 cd5 23.de4 de4 ½–½. Fischer,Diana – Drescher,Wolfgang, corr EU–II–768, 1983.

6.d4 0–0=+ A) 7.a3 A1) 7...Ba5 8.Nf3 Bf5 9.Ba5 Na5 10.e3; A2) 7...Bc3 8.Nc3 Re8 9.e3 d5 10.cd5; B) 7.Bb4 Nb4 8.a3 Na6 9.e3 Bg4 10.Be2; C) 7.Nf3 C1) 7...Re8 8.e3 Bf5 9.a3 Bc3 10.Nc3; C2) 7...Bg4 8.e3 a5 9.a3 Bc3 10.Nc3; C3) 7...Ne4 8.Bb4 Nb4 9.a3 Nc6 10.e3.

6.d4 a5 A) 7.Nf3 A1) 7...0–0 8.e3 Re8 9.Bd3 d5 10.a3; A2) 7...Bg4 8.e3 Ne4 9.Bb4 ab4 10.Bd3; A3) 7...Ne4 8.Bb4 ab4 9.e3 Bg4 10.Bd3; B) 7.e3 B1) 7...d5 8.cd5 Qd5 9.Qf3 Bf5 10.Qd5; B2) 7...Bc3 8.Nc3 Bf5 9.Nf3 Nb4 10.Rc1; B3) 7...0–0 8.a3 Bc3 9.Nc3 Bg4 10.Be2; C) 7.a3 Bc3 8.Nc3 Bg4 9.Rb1 Ra7 10.Qd3.

6.d4 Bf5 7.Bb4+/– Nb4 8.Qa4 Nc6 9.Nc3 0–0=+ 10.e3 Re8 11.Nf3 a6 12.Be2 Qd7 13.0–0 Ne4 14.Ne4 Be4 15.Rac1 Qg4 16.c5 d5 17.h3 Qg6 18.Rfd1 Re6 19.Qb3 Nd8 20.Bd3+= b6 21.Be4+/– de4 22.Ne5 Qf5 23.g4 Qg5 24.cb6 Rb6 25.Qd5 Ra7 26.Qd7 Kf8 27.Qc8 (< 27.Rc7 Rc7 28.Qc7 Rh6+/–) 1–0. Rosner,Dirk – Bartsch, 1999.

6.e3 Be6. pcmvr (2535) – dmendiola (2205), net–chess.com, 2006.

6.g3 0–0 7.Bg2 Re8 8.e3 Bg4 9.f3 Be6 10.Bb4 Nb4 11.d3 c6 12.Ne2 Qa5 13.0–0 d5 14.cd5 Bd5 15.e4 Be6 16.Nbc3 Na2?? 17.e5?? Nd7?? 18.d4?? Bc4?? 19.Na2+/– Be2 20.Qe2+– Qa4 21.Qd2 a6 22.Rfb1 b5 23.Nb4 1–0. coloplayah (2085) – antoniowithouthelp (1980), net–chess.com, 2006.

4.c4 Qe7?!

5.Bb2 b6 6.a3 Ba5 7.e3 Bb7 8.Nf3 d6 9.Be2 Nbd7 10.0–0 0–0 11.Nc3 c5 12.d3 Rad8 13.e4 Ng4 14.Qd2 Nde5 15.Ne5 Ne5 16.Qe3 Nc6 17.Nd5+= Qh4 18.g3 Qh3 19.Bf6 Qh6? 20.Qh6+– gh6 21.Bd8 Nd8 22.Ne7 Kg7 23.Nf5 Kh8 24.Nd6 Ba8 25.Nf5 Ne6 26.Rab1 Bb7 27.Kg2 Rd8 28.Nh6 Nd4 29.Nf7 Kg7 30.Nd8 (30.Nd8 Bc8 31.Bf3+–) 1–0. pereira – guest, internet, 2007.

5.Bb2 Nc6 6.a3 Ba5 7.Nf3 =+.

5.Bb2 d5 6.cd5= Nd5 7.e3 Nc6 8.Be2 Bf5 9.Nf3 0–0=+ 10.0–0 a6 11.a4 Rfe8 12.Nd4 Nd4–/+ 13.Bd4 Kh8 14.Re1 c5–/+ 15.Bb2 Ne3?? 16.fe3+– Bd2? 17.Kf1 Be3 18.Qb3?? Qh4–+ (18...Qh4 19.Qe3 Re3–+) 0–1. Kienholz,Gerfried – Pfeiffer,Herbert, Wuerzburg op, 1986.

5.Bc7 Ne4 6.Nf3 Qc5 =.

5.Bb2 0–0=+

6.e3 Nc6 7.Nf3 d6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6 7.Nf3 Qe7).

6.e3 d5

7.a3 Bd6 =+.

7.cd5 Nd5 8.Be2 Nc6 9.Nf3 Bd6 10.Nc3 Nc3 11.Bc3 Ne5 12.Ne5= Be5 13.Be5 Qe5 14.d4 Qg5 15.Bf3 c6 16.Rb1 Rb8 17.0–0 Be6 18.Qa4+/– a6 19.Rb6 Bd5 20.Bd5 Qd5 21.Rc1 f5 22.Rcb1 f4 23.Rb7 Rb7 24.Rb7 fe3 25.fe3 Qf5 26.Qb3 Kh8 27.h3 h6 28.Rb8 Qf2 29.Kh2 Rb8 30.Qb8 Kh7 31.Qb1 Kh8 32.Qe4 Qa2 33.Qc6 a5 34.d5 a4? 35.Qe8 Kh7 36.Qe4 Kh8 37.d6 (37.d6 Qd2 38.Qe7+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

7.cd5 Nd5 8.Be2 Be6 –/+.

7.cd5 Nd5 8.Be2 f5 9.f4? Qe3–+ 10.Nc3 Bc3 11.Bc3 Nc3?? 12.de3=+ Nd1 13.Bc4 Kh8 14.Rd1 Nc6 15.Nf3 Na5 16.Bf7 g6 17.Ne5 Kg7 18.Bd5 c6 19.Bf3 Be6 20.Rd4 Rac8 21.Ke2 Rfd8 22.Rhd1 Rd4 23.Rd4 c5 24.Rd6 Re8 25.Bd5=+ Bc8 26.h3 Kf8 27.Rf6 Ke7=+ 28.Rf7 Kd6 29.Bc4 Nc4–/+ 30.Nc4 Ke6 31.Rh7= Re7 32.Rh6+= Kf6 33.Ne5+/– Rg7 34.g4 Be6 35.g5+– Ke7 36.Ng6 Kd8 37.a3+– a5 38.Ne5 Ke7 39.h4 b5 40.Nc6 Kd6? 41.Nd8 Re7 42.Ne6 Re6 43.g6 (43.g6 b4 44.g7 Rh6 45.g8Q+–) 1–0. Kleinke,Uwe – Sikorsky, corr DDR–ch I726, 1988.

7.cd5 Nd5 8.Qf3 Be6 =+.

5.Nf3 d6

6.Bb2 Nc6 7.e3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6 7.Nf3 Qe7).

6.Bc3 Bc3 7.Nc3 Bg4 8.e3 Nc6 9.h3 Bh5 10.Nd5 Nd5 11.cd5 Ne5 12.Qa4 c6 13.dc6 Nf3 14.gf3 0–0 15.Be2 bc6 16.Qc6 Rac8 17.Qd5 Rc5 18.Qd4 Rfc8 19.0–0 Qg5 20.Kh2 Qe5 21.Qe5 de5 (worse is 21...Re5 22.d4 Re7 23.Rfc1+/–) 22.Kg3 Rc2 23.Bd3 Rd2 24.Rfd1 Rd1 25.Rd1 g6 26.Rb1 Rc3 27.Be4 f5 28.Bd5 Kf8 29.Rb7 a5 30.Rf7 Ke8 31.Rh7 a4 (better is 31...f4!? 32.ef4 Bf3 33.Bf7 Ke7 34.Bb3 Kd6 35.fe5 Ke5 36.Re7 Kd4+/–) 32.f4 ef4 33.Kf4 a3 (better is 33...Rc5 34.Be6 Rc2+–) 34.Ke5 Rc2 (34...Rd3+–) 35.Kd6 Kf8 36.Rf7 Ke8 37.Rg7 Kf8 (37...Rc6 38.Kc6 Kf8 39.Rf7 Kg8 40.Rf5 Kg7 41.Rf7 Kh6+–) 38.Rg8 1–0. Janek – autobhn, internet, 2016.

4.c4 Be7

5.Bb2 0–0 6.Nc3 d5 7.cd5 Nd5 8.Nd5 Qd5 9.Nf3 Nc6 =+.

5.Bb2 b6 6.Nc3 Bb7 7.e3 d5 8.cd5 Bd5 9.Nd5 Qd5 10.Be2 c6 11.Nf3 Nbd7 12.0–0 0–0 13.Qc2 Nc5 14.Bc4 Qh5 15.h3 Qg6? 16.Qg6+– hg6 17.Ne5 Na4 18.Bc1 Rac8 19.Ng6 Rfe8 20.Ne7 Re7 21.d4 c5 22.Bb3 Nc3 23.dc5 Ne2 24.Kh2+/– Nc1 25.Rac1 Rc5 26.Rc5 bc5 27.Rd1 Rc7 28.g4 c4 1–0. Brzoza,Miroslaw – Dulat, corr Poland, 1980.

5.Bb2 Nc6 6.Nc3 0–0 7.Nd5 Nd5 8.cd5 Nb4 9.Qb3 c6 =+.

5.Bb2 d6 6.e3 0–0 7.Nf3 Bg4 8.Be2 c6 9.Nc3 Nbd7 10.0–0 Re8 11.h3 Bh5 12.g4 Bg6 13.Nh4 Qc7? 14.g5+– Ne4 15.Ng6 Nc3? 16.Ne7 Re7 17.Bc3 Nc5 18.d3 Rae8 19.Bg4 Na4 20.Qa4 (20.Qa4 b6 21.Qb4+–) 1–0. Van Rooijen,Peter – Stevenson,Walter, WCCF, 2002.

5.Nc3 0–0 6.Nf3 Re8 7.e3 d6 8.Bf6 Bf6 9.d4 c5 =+.

5.Nc3 Nc6 6.Bf4 0–0 7.e3 Re8 8.Rb1 Rb8 9.Nd5 d6 =.

5.e3 0–0 6.Nf3 Re8 7.Be2 c5 8.0–0 Nc6 9.Bb2 d5 =.

5.e3 c5 6.Nf3 Nc6 7.Bb2 0–0 8.Be2 d5 9.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Be7 7.Be2 c5 8.0–0 Nc6 9.Bb2).

5.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.Nf3 Be7).

5.Nf3 c5 6.e3 d6 7.Bb2 0–0 8.Be2 Nc6 9.0–0 Qb6 10.Qb3 Qb4 11.d4 Qb3 12.ab3 cd4 13.ed4 d5 14.Nc3 Be6 15.Nb5 a6 16.Nc7 Rac8 17.Ne6 fe6 18.Ng5 Nd8 19.Ba3 Ba3 20.Ra3 Re8 21.f4 h6 22.Nf3 Ne4 23.g3 Nc6+= 24.Kg2 Kh8 25.Re1 Nb4 26.Rc1 Rc7 27.Ra4 Nc6+= 28.Bd3 g5 29.fg5 Ng5 30.cd5 Nf3? 31.dc6+– b5 32.Ra6 Nd4 33.b4 Rec8 34.Be4 Kg7 35.g4 Kf6 36.Kf2 e5 37.h4 Rg8 38.Rg1 Ke6 39.g5 hg5 40.hg5 Rf8 41.Ke3 Kd6 42.g6 Ke6 43.Rh1 Rg8 44.Rh7 Rgc8 45.Rb6 Nf5 46.Kd3 Nd6 47.g7 Rg8 48.Rh6 Ke7 49.Bd5 e4 50.Kc3 Rg7 51.Re6 Kf8 52.Rd6 Rc8 53.Rh6 Rg3 54.Kd4 (54…Kg7 55.Re6+–) 1–0. Kern,Guido (2410) – Schultz, Hessen clubgame, 1997.

5.Nf3 Nc6 6.Bf6 Bf6 7.d4 d5 8.e3 0–0 9.Nc3 dc4 10.Bc4 Bg4 11.Bd3 Re8 12.0–0 Nb4 13.Bh7 Kh7 14.Qb1 g6 15.Qb4 b6 16.Qc4 Be6 (17.Qc6 Bd7+/–). pcmvr – Kwor, ChessWorld.net, 2002.

5.Nf3 d6 6.Bg3 Nbd7 7.d4 Nb6 8.e3 Be6 9.Na3 Nh5 =.

5.Bb2 c5

6.Nc3= 0–0 7.e4 Nc6 =.

6.Nc3= 0–0 7.Nf3 d5=+ 8.cd5 Nd5 9.Nd5 Qd5 10.e3 Bg4 11.Be2 Nc6 12.0–0 Rfd8 13.Bc3 c4 14.Rb1 b5 15.Nd4 Be2 16.Nc6 Qc6 17.Qe2=+ Rd3 18.Qh5 Rd5 19.Qf3 a5 20.Rfc1 b4 21.Bd4 a4 22.Rc2+= Rd6 23.Rc4 Qf3 24.gf3 Rg6 25.Kf1+/– Bd6 26.Bc5 Bh2 27.Rbb4+/– (27.Rbb4 Rg1 28.Ke2+–) 1–0. Dziel,Jaromir – Widziszewski,Franciszek, corr 1. AMM Poland, 1991.

6.Nc3= 0–0 7.Nf3 d5 8.cd5 Nd5 9.Nd5 Qd5 10.g3 Nc6 11.Bg2 Bg4 12.0–0 Qd7 13.Rb1 Rad8 14.Bc3 b6 15.Re1 Rfe8 16.Qc2 h6 17.Qb2 Bf8 18.d3 Nd4 19.Bd4 cd4 20.Rbc1 Bc5 21.Rc2 Qe7 22.h3 Bf5 23.Rb1 Qf6 24.Qb5 Re7 25.Rbb2 Rde8 26.Bf1 Bd7 27.Qa6 Bc8 28.Qa4 Bb7 29.Rc5= Bf3 30.Rc7 Bd5 31.Ra7 Bc6 32.Qa6 Ra7 33.Qa7 Qd6 34.Qb6 Qd5 35.f3 Re6 36.Kf2 Kh7 37.Qb8 Rf6 38.Bg2 Qe6 39.Rc2 Qe3= 40.Kf1 Ba4 41.Rc8?? Bd1–+ 42.Re8? Be2 43.Ke1 Qg1 44.Ke2 Qg2 45.Ke1 Rf3 46.Re2 Qf1 47.Kd2 Qa1 48.Qb3 Rf1 49.Qc2 Rb1 (49...Rb1 50.Re8 Rb2–+; 49...Rd1! 50.Qd1 Qc3#) 0–1. Mulenko,Lydia N (2220) – Levitina,Irina S (2335), URS–CupT Tbilisi, 1976.

5.Nc3 d6

6.Bf4 c6 7.d4 0–0 8.e4 Re8 9.Nge2 Nbd7 10.Rb1 Nf8 11.f3 Ng6 12.Be3 Nd7 13.Ng3 Bg5 14.Qd2 Be3 15.Qe3 Nb6 (15...Qh4 16.Bd3=) 16.Bd3 Be6 17.Nce2 Nc4 18.Bc4 Bc4 19.Rb7 Ba2 20.0–0 Qc8 21.Rb2 Bc4 22.Rc1 d5 23.Nf4 a5 24.Ng6 hg6 25.Ra1 a4 26.Rb4 a3 27.Ra3 Ra3 28.Qa3 c5 29.dc5 Qc5 30.Kh1 f5 31.Qc3 f4 32.Ne2 Qe3 33.Rb7 Qc3 34.Nc3 d4 35.Nd1 Ra8–+ 36.Rb1 Bd3 37.Rc1 g5 38.h4 gh4 39.Nf2 Be2 40.Rc7 Ra2–+ 41.Rd7 Bf3! 42.Kg1 Ra1 43.Kh2 Rf1 44.Nh3 Bg4 45.Rd4 Kf7 46.Rd5 Kf6 47.Rc5 f3 48.gf3 Rf3 49.Ng5 Rf2 50.Kg1 Rf4 51.Kh2 Bd1 52.Kh3 Be2 53.Ra5 Bf1–+ 54.Kh2 Bd3 55.Nh7 Kg6 56.Ng5 Be4 57.Ne4 0–1. marekt – SkyNet, ChessWorld.net, 2003.

6.Bf4 Nh5 7.Be3 0–0 8.d4 Re8 9.Nf3 Nc6 =+.

6.Bg3 0–0 7.d4 Bf5 8.e3 c5 9.Bd3 Bd3 =.

5.e3 Nc6

6.Bb2 0–0 7.Nf3 d5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Nc6 7.Bb2 Be7).

6.Nf3 Ne5=+ 7.Ne5 0–0 8.Be2 d6 9.Nf3 Bg4 10.0–0 c6 11.d3 d5 12.Nbd2 Bd6 13.Re1 Re8 14.Qb3 Qc7 15.Rab1 b6 16.cd5= Nd5 17.Nc4 Be6 18.Nd4? Bh2–/+ 19.Kh1 Ne3?? 20.Ne6+= Re6 21.Ne3 Rh6 22.Nf5+/– Bg1?? (22...Bg1 23.Nh6 gh6 24.Kg1 c5+–; better is 22...Rf6 23.Bg4 Bd6+/–). Mear,D – Baird,J, Newcastle, 1999.

6.Bf6 Bf6 7.d4 0–0= 8.Nf3 d5 9.Nc3 Ne7 10.Rc1 c6 =.

5.e3 d6

6.Bb2 0–0 7.Nf3 c5 8.Be2 Nc6 9.a3 d5 10.cd5 Nd5 11.0–0 Bf6 12.Qc2 Bb2 13.Qb2 Qf6 14.Qf6 Nf6 (< 14...gf6 15.Rc1 Na5 16.Nc3 Nc3 17.Rc3+/– (< 17.dc3 Nb3–/+)) 15.Nc3 b6 16.h3 Bb7 17.Rfd1 Rad8 18.d4 cd4 19.Nd4 Nd4 20.Rd4 Rd4 21.ed4 Rd8 22.Rd1 Nd5 23.Nd5 Bd5 24.Kf1 Rc8 25.f3 Bc4 26.Bc4 Rc4 27.Rd3 ½–½. hal1958 – cccmember, HCL–B2083 playchess.de, 2003.

6.Bb2 0–0 7.Nf3 d5 8.Nc3 dc4 9.Bc4 Nbd7 =.

6.Bb2 Be6 7.Qb3 Nbd7 A) 8.d4 c6 9.Ne2 b5 10.Nf4 Bc4 11.Bc4 bc4 12.Qc4=; B) 8.Nf3 Nc5 9.Qc2 Qd7 10.Nc3 0–0 11.e4 Bg4 12.Be2=.

6.Bb2 Be6 7.Nf3 0–0 8.Nc3 c5 9.Be2 d5 10.Ng5 d4 11.ed4 cd4 12.Ne6 fe6 13.Na4 Nc6 14.0–0 e5 15.c5 d3 16.Qb3+= Kh8 17.Bd3 Nd4 18.Qb7 Rb8 19.Qa6 Rb2 20.Nb2+– Bc5 21.Rac1 Bb6 22.Na4 Nd5 23.Be4 Ne2?? 24.Qe2 Nf4 25.Qf3 Qd2 26.Nb6 ab6 27.Rc2 Qd4 28.Rd1 Qa4 29.Qe3 b5 30.Qc5 Re8 31.Qc8! Ne2 32.Kh1 b4 33.Rd8 g6 34.Re8 (34.Re8 Qe8 35.Qe8 Kg7 36.Qe7 Kh6 37.Qh4 Kg7 38.Rc7 Kf8 39.Qd8#) 1–0. pierre – barute, internet, 2008.

6.Bc3 0–0 7.Nf3 d5 8.Be2 dc4 9.Bc4 Nbd7 =+.

6.Bf4 0–0 7.d4 c5 8.Nf3 Nh5 9.Bg3 Nc6 =+.

6.Bg3 0–0 7.d4 c5 8.Nf3 cd4 9.Nd4 d5 =.

4.e3 c6

5.c3 Ba5 6.Nf3 0–0 7.Bf6 Qf6 8.d4 d5 9.Bd3 Bg4 10.Be2 Nd7 11.0–0 Qd6 12.Nfd2 Bc7 13.f4 Bf5 14.Bf3 Nf6 15.c4 g5 16.c5 Qe6–/+ 17.Qb3 gf4 18.Re1 b6 19.cb6 Bb6 20.Qc3 Rae8 21.Nf1 Ne4 22.Be4 Be4 23.Nbd2 Qf6 24.Nb3 f3 25.Red1?? f2 26.Kh1 Qf3!? (26...Qf3 27.gf3 Bf3#) 0–1. Steche,Roland – Grummich, corr DDR–I–716, 1980.

5.c4 0–0 6.Nf3 d6 7.Bb2 Re8 8.Be2 (withdraw) 1–0. Mothes – KD Hoffmann, corr SOK–91–73.

5.c4 Be7 6.Bb2 d6 (6...Qb6 7.Bd4 c5 8.Bf6 Bf6 9.Nc3=) 7.Nc3= Nbd7 8.d4 0–0 9.Nf3 Re8 10.Bd3 Nb6 11.Qc2 (11.0–0 Be6 12.Qb3 h6+=) 11...h6 (11...Be6!? 12.Ne2 d5=) 12.0–0+= Qc7 13.Rac1 Be6 14.Nd2 d5 15.cd5 Nbd5 16.Nd5 Nd5 17.a3 Bd6 18.g3 Qe7 19.Nc4 Bc7 20.e4 Nf6 21.Ne3 Bh3 22.Ng2 (22.Rfe1 Rad8+= (22...Ne4? 23.Ng2+–)) 22...Rac8 (22...Ne4? 23.Rce1+–) 23.f3 Bb6 24.Bc4 Red8 25.Rfd1 Be6 26.Ne3 Rd7 27.Qb3 Rcd8 28.Be6 Qe6 29.Qe6 (29.Qa4!?+=) 29...fe6+= 30.Rc4 (30.e5!? Nd5 31.Kf2+=) 30...e5!–/+ 31.Nc2 ed4 32.Kg2 c5 33.a4–/+ a5 34.Ne1 Ba7 35.Nd3 b6 36.Ne5 Rc7 37.Bd4? Rdc8?? 38.Be3 Re7 39.Ng6 Rd7?? 40.Rd7+– Nd7 41.Ne7 (41.Ne7 Kf7 42.Nc8+–) 1–0. Kalanyos,Ferenc (2010) – Kovacs,Imre (2020), HUN–chT2 Asztalos, 2005.

5.Bd3 d5 6.Nf3 Bd6 7.Bb2 Bg4 8.Nc3 Nbd7 9.Rb1 b5 10.Ne2 Nc5 11.Ned4 Nd3 12.cd3 Qd7 13.Qb3 0–0 14.Nh4 c5 15.h3 Be6 16.Ne6= Qe6 17.0–0 b4 18.Qd1 a5 19.f4 a4 20.Rf3 c4 21.Rg3 Rfc8 22.Bd4 b3 23.Rg5 g6?? 24.f5+– Qe7 25.fg6 fg6 26.Qf3?? Ne4!–/+ 27.Rg4 Nd2 28.Qd5 Qf7 29.Qd6 Rd8 30.Qe5 Rd4 31.Rd4 Nb1?? 32.Rf4 Re8= 33.Qb5?? Nc3–+ 34.Rf7 Nb5 35.Rf1 c3 (35...c3 36.Kh2 c2 37.ab3 ab3–+; < 35...cd3 36.ab3 ab3 37.Nf3–+) 0–1. Finenko – Poliakov, USSR, 1987.

5.a3 d6

6.Bb2 Bc5 7.Qf3 Nbd7 8.d4 Bb6 9.Bd3 Ba5 10.Nd2 =+.

6.Bd4 Bc5 7.Bc5 dc5 8.Nf3 0–0 9.Be2 Ne4 10.0–0 =.

6.Bb2 Ba5

7.Qf3 Be6 8.Bf6 gf6 9.Qg3 Ke7 10.Ne2 =.

7.Nf3 Be6 8.Be2 b5 9.0–0 0–0 10.Nd4 Qe7 11.Bf3 d5 12.a4 =.

7.Nf3 Qe7 A) 8.Nc3 0–0 9.Be2 b5 10.0–0 Re8 11.Nd4 Bb6 12.Na2=; B) 8.Be2 Be6 9.Nd4 0–0 10.0–0 Nbd7 11.c4 d5 12.Ne6=.

7.Nf3 Bg4 8.Be2 Bf3 9.Bf3 0–0 10.0–0 Nfd7 11.d4 d5= 12.Nd2 Bd2 13.Qd2 Nb6 14.Rab1 Re8 15.Ba1 Nc4 16.Qd3 Qe7 17.a4 Nd6 18.Rb2 Nd7 19.Rfb1 Nb6=+ 20.Rb4 Nbc4 21.c3 a5 22.R4b3 Qd7 23.Qd1 b5 24.ab5 Nb5 25.Be2 Qe6 26.Bd3 Qh6 27.Qe1 Nba3 28.Rd1 a4 29.Rb4 Qh5 30.Rc1 Reb8= 31.Rb8 Rb8=+ 32.e4 Re8 33.f3 Qg5 34.Rd1 f5 35.e5 c5 36.Qf2 Ne3 37.Re1 cd4 38.cd4 Nac4 39.f4 Qe7 40.g3 Qb4 41.Rb1 Qa5 42.h3 Kh8 43.Kh1 a3 44.Re1+= Qa4 45.Qf3 Rc8 46.Kg1 Ra8 47.Kf2 Nc2= 48.Qd5 Ne1–/+ 49.Bc4 Qc2 50.Be2 Nd3–/+ 51.Ke3 Rb8 52.Bd3 Qc1 53.Kf2 Qa1 54.e6 Qb2 55.Kf3 Qb7 56.Bc4? Qb1–+ 57.e7 Re8 58.Qd6? Qe4 59.Kf2 Qe7 60.Qe5 Qd7 61.Qd5 Qa4 62.g4 Qc2 63.Kg3 Qc3 (63...Qc3 64.Qf3 Re3 65.Qe3 Qe3 (65...Qc4? 66.Qa3 Kg8 67.Qe3+–) 66.Kh2 Qf4 67.Kg2 Qd2 68.Kf3 Qc3 69.Kf4 Qc4–+) 0–1. Bonetti,Shane – Tinker (2430), ICC, 2002.

7.Nf3 0–0

8.Be2 a6 9.0–0 b5 10.a4 Be6 11.ab5 ab5 12.Nd4 =.

8.Be2 b5 9.c4 bc4 10.Bc4 d5 11.Be2 Nbd7 12.Nc3 =.

8.Be2 c5 9.0–0 Be6 10.c4 d5 11.Qc2 Nbd7 12.Ng5 =.

8.Be2 d5 9.0–0 Nbd7 10.Nc3 Re8 11.Nd4 Ne5 12.f4 =.

8.Be2 Nbd7 9.0–0 Re8 10.d3 b5 11.Nbd2 Nd5 12.c4 =.

8.Be2 Be6 9.0–0 b5 10.Nd4 a6 11.f4 Bd5 12.Bf3 =.

8.Be2 Be6 9.0–0 Nbd7 10.c4 d5 11.cd5 Nd5 12.Qc2 Bg4 13.h3 Bh5 14.d4 f5 15.Nbd2 N7f6 16.Bd3+= Bf3 17.Nf3 g6 18.Ne5 Rc8 19.Rac1 Bb6 20.Qb3 Kg7 21.Nc4 Re8 22.Rfe1 Rc7 23.Qc2 Rce7 24.Ne5 Bc7 25.g3 Nd7 26.f4 c5 27.Qb3 Ne5 28.de5 Ba5 29.Re2 c4? 30.Bc4+– Ne3 31.Re3 Bb6 32.Kf1 Be3 33.Qe3 Rc7 34.e6 Kh6 35.g4 (35.g4 g5 36.gf5+–; 35.Qa7 Rc4 36.Rc4 Qd3 37.Kf2 Re6 38.Bg7 Kh5=+) 1–0. Schuehler,Ernst – Hoffmann,KD, corr SOK–89–51, 1989.

8.Be2 Qe7 9.0–0 b5 10.c4 a6 11.Qc2 Re8 12.Nd4 =.

8.Be2 Re8 9.0–0 a6 10.c4 b5 11.d4 Bf5 12.d5 =.

8.Be2 Bg4 9.0–0 Re8 10.Nc3 b5 11.Nd4 Be2 12.Qe2 =.

5.a3 Be7

6.Bb2 0–0 7.Nf3 Qb6 8.Qc1 d5 9.Be2 Bg4 10.0–0 =+.

6.Bb2 Qb6 7.Ra2 0–0 8.Nf3 d6 9.Bc4 d5 10.Be2 =+.

6.Bb2 d5 7.Nf3 Bf5 8.Be2 Nbd7 9.0–0 Qc7 10.Nh4 Bg6 11.f4 h6 12.Ng6+= fg6 13.Bd3 0–0–0 14.Bg6+/– Nf8 15.Bf5 N8d7 16.Qf3 Kb8 17.Qg3 Bf8 18.Be5 Ne5+/– 19.fe5 Nh5 20.Qh4+– Nf6? 21.ef6 gf6 22.Nc3 Rg8 23.Qf6 Rg5 24.Rab1 Bg7 25.Qe6 Rd6 26.Qg8 Rd8 27.Nd5 cd5 28.Qe6 Rh8? 29.Qd5 b6 30.Qd7 Rf8 31.Qc7 Kc7 32.g4 h5 33.h4 Rgf5 34.gf5 Bf6 35.Rf4 Rg8 36.Kf2 Kd6 37.c3 Rg7 38.d4 Kd5 39.Kf3 Kc4 40.e4 Bd4 41.cd4 Kd4 42.f6 (42.f6 Rf7 43.Rf5+–) 1–0. Rosner,Dirk (1830) – Brunner,Hermann, DESC, 2000.

6.c4 d6=+ 7.Bb2 0–0 8.d4 d5 9.Qc2 Be6 10.Nd2 Nbd7 11.Ngf3 Rc8 12.cd5 cd5=+ 13.Qb1 Ne4 14.Bd3 f5 15.0–0 Bd6 16.Rc1 Qf6 17.a4 Qh6 18.Nf1 Bf7 19.Ba3 Ba3 20.Ra3 Rc1 21.Qc1 Qd6 22.Rb3 b6 23.Bb5 Be6 24.Rb2 Qa3 25.Rc2+= Qc1 26.Rc1 Nd6? 27.Rc6 Nb5+/– 28.ab5 Re8 29.Rc7 Ra8 30.Ng5 Nf8 31.Ne6 Ne6 32.Rd7 g6 33.Rd5 Nc7= 34.Re5 Re8 35.f4 Re5 36.fe5 Kf7 37.Nd2 Ke6 38.Kf2 Nb5 39.Ke2 Nc3 40.Kd3 Nd5 41.Nf3 h6=+ 42.h3 a5 43.Nd2 a4 44.e4 Nf4 45.Kc4 Ng2 46.ef5 gf5 47.Kb4 Nf4 48.Ka4 Kd5 49.Nf3 Ke4 50.Nh4–/+ Ne6 51.d5=+ Ng7 52.d6 Ke5 53.d7 Ne6 54.Kb5 f4 55.Kb6 Kd6–/+ 56.Nf5 Kd7 57.Nh6 Kd6 58.Ng4 Kd5 59.h4=+ Ng7 60.Kb5 Nh5 61.Kb4 Kd4 62.Kb3 Kd3 63.Kb2 Kd2 64.Kb3 f3 65.Kc4 Ke2 66.Kd4 f2 ½–½. Ioannides,Milton (2095) – Pye,David E (2080), BCF–chT3, 2003.

6.c4 d6=+ 7.Bf4 A) 7...0–0 8.d4 Bf5 9.Qb3 Nbd7 10.Nd2 b6 11.Bd3 Be6; B) 7...Bf5 8.d4 Nbd7 9.Nd2 0–0 10.Qb3 Qb6 11.Qb6 Nb6; C) 7...Qa5 8.Be2 0–0 9.Nc3 Re8 10.Qb1 Nh5 11.Bg3 h6.

6.c4 d6=+ 7.Bg3 A) 7...Bf5 8.Nf3 0–0 9.d4 Re8 10.Nbd2 Nbd7 11.Qb3 Qb6; B) 7...Ne4 8.d4 Bf5 9.Nf3 Nd7 10.Nbd2 Qa5 11.Qb3 b6; C) 7...Qa5 8.Nc3 Nh5 9.Qb3 Na6 10.d4 Be6 11.Nf3 b5; D) 7...0–0 8.d4 Bf5 9.Nf3 Nbd7 10.Nbd2 Re8 11.Be2 Nh5.

6.d4 0–0 7.Bd3 d5 8.Nf3 Nbd7 9.Bg3 c5 10.dc5 =+.

6.d4 d6 7.Bf6 Bf6 8.Nf3 c5 9.c3 0–0 10.Bd3 =.

6.Nf3 0–0 7.d4 d5 8.Bf6 Bf6 9.c3 Bf5 10.Bd3 =.

6.Nf3 d5 7.c4 0–0 8.d4 Ne4 9.Be2 Qa5 10.Nfd2 Nd7 11.Bf4 dc4 12.Bc4 Nb6 13.Bd3 Bf5 14.Be4 Be4 15.0–0 Bd3 16.Re1 Nd5 17.Bg5?? Bg5–+ (18.Nf3 Bb1 19.Rb1 Nb6–+) 0–1. Steuer – Woelfelschneider,Peter, email 4AMM–F, 1998.

6.Nf3 d5 7.Be2 Nbd7 8.Bb2 0–0 9.Nc3 Re8 10.0–0 =+.

6.Nf3 d5 7.Bf6 Bf6 8.d4 0–0 9.c3 c5 10.dc5 Nd7 11.Qd5 Ne5 12.Bc4 Nc4 13.Qc4 Be6 14.Qe4 Bd5 15.Qf5 Bc4 16.Nfd2+= Qd3 17.Qd3 Bd3 18.f3 Rac8 19.Nb3 Bc4 20.Nd4 Rc5 21.Kf2 Bh4 22.g3 Bf6 23.Rd1 Rd8 24.e4 Rc7 25.a4 Rcd7 26.Ke3 Rc8 27.a5 Rc5 28.Rd2 Bg5 29.f4+/– Bd8 30.Nb3 Rd2 31.N3d2 Be6 32.f5 Bc8 33.Nb3 Rc6 34.Ra4 g6 35.g4 gf5 36.gf5 Rh6 37.Kf3 Bf6 38.Rc4 Bd7 39.Nd4 Be5 40.Rb4 b6 41.ab6+/– ab6 42.h4 b5 43.Na3 Rh4 44.Nab5 h5 45.c4 Rh1 46.Ke2 Rc1 47.Nf3 Bg3 48.Nbd4 f6 49.Ke3 Rc3 50.Kd2 Ra3 51.c5 Bc8 52.c6 Kf7 53.Rb1 h4 54.Nb3 Ra2 55.Kc3+= Re2 56.Kd4+/– h3 57.Kd5 h2 58.Rh1 Ke7 59.Nbd4 Ra2 60.Kc4 Ba6 61.Kc3 Ra3 62.Nb3 Bd3 63.Kd3 Rb3 64.Ke2 Rc3 65.c7 Bc7–/+ 66.Nh4 (66.Nh4 Bd6 67.Ng6 Kd7 68.Kf2–/+). bambinik – Rohrbruch, internet, 2001.

5.c3 Be7

6.d4 0–0 7.Bd3 d5 8.Bf6 Bf6 9.Nf3 c5 10.0–0 =.

6.d4 0–0 7.Bf6 Bf6 8.Bd3 d5 9.Nd2 Be7 (9...Nd7 10.Qc2 h6 11.Ngf3=) 10.Ngf3 (10.Qc2 g6=) 10...Nd7 11.0–0 Nf6 12.Qc2 Re8 13.Rab1 Qc7 (13...Rb8 14.c4=) 14.c4+= dc4 (14...h6 15.Ne5+=) 15.Bc4 Ng4 (15...Bd6 16.e4 Bf4 17.e5+/–) 16.h3 Nh6 (16...Nf6 17.Ne4 Ne4 18.Qe4+=) 17.Bd3 (17.Ne5 Rd8+=) 17...g6 18.Rfc1 Nf5 (18...Be6 19.e4 Ba3 20.Re1+=) 19.e4 Ng7 20.Bc4 (20.d5 Rd8+/–) 20...Rd8 21.Qb2 Qf4 22.Ne5 Ne6 23.Be6 fe6 24.Nd3 Qh4 25.Re1 Rf8 (25...Qf6 26.Nf3+=) 26.Re3 (26.Qc2 Qf6 27.Nf3 Bd8+=) 26...b6 (26...Qh5 27.Ne5=) 27.Nf3+/– Qh5 (27...Qf6 28.Rc1+/–) 28.Rc1 c5 29.dc5 bc5 30.Qb5 Rd8 31.Nde5 (31.Qc4 a5+/–) 31...a6 (31...Bf8 32.Qc6 Rb8 33.Qc7+–) 32.Qc6 (32.Qb6!? Rf8+–) 32...Rb8 (32...Ra7!?+/–) 33.Rd3+– (33.Rd3 Qh6 34.Rd8 Bd8 35.Qc5+– (worse is 35.Rc5 Qf4 36.Rc1 Be7+/–)) 1–0. Vegjeleki,Adolf (2145) – Walker,John T (1940), corr WSTT/3/06/Semifinal, 2008.

6.d4 d5 7.Bd3 Nbd7 8.Bf4 0–0 9.Nd2 Re8 10.h3 Nf8 11.Ngf3 c5 12.0–0 c4 13.Be2 Ng6 14.Bh2 Bf5 15.Ne5 Bd6 16.g4 Be4 17.f4 h6 18.g5 hg5 19.fg5 Nd7 20.Ne4 Be5 21.de5 de4 22.e6 fe6 23.Kh1 Nde5 24.h4 Qd1 25.Rad1 Nd3 26.Rb1 b6 27.Bh5 Kh7 28.Bg3 Rh8 29.Kh2 Ne7 30.Bf7 Nd5 31.Be6 Nc3 32.Rbc1 Nc1 33.Rc1 Ne2 34.Rc4=+ Rhf8 35.Re4 Rae8 36.h5 Nc3 37.Re5 Na2 38.Bf5 Kg8 39.Be6 Kh8 40.h6 gh6=+ 41.Ba2 hg5 42.Bb1 Re5 43.Be5 Kg8 ½–½. Ringsborg,Allan (2265) – Johnsen,Klaus Hoeck (2240), corr DEN–ch Denmark, 2001.

6.d4 d6 7.Bf6 Bf6 8.Bd3 c5 9.Nf3 Nc6 10.0–0 =.

6.Nf3 0–0 7.d4 d5 8.Bf6 Bf6 9.Bd3 c5 10.dc5 =.

6.Nf3 d5 7.Bf6 Bf6 8.d4 0–0 9.Bd3 c5 10.Qc2 =.

6.Nf3 d6 7.Bf6 Bf6 8.d4 Be6 9.Bd3 0–0 10.Nbd2 =.

5.Qf3 Be7

6.Bb8 Rb8 7.Qg3 d6 8.Nc3 0–0 9.Bd3 Be6 10.Nh3 d5 11.Ke2 c5–/+ 12.Ng5? c4–+ 13.Bh7 Nh7 14.Ne6 fe6 15.f4 Nf6 16.h4 d4 17.h5 dc3 18.d4 cd3 19.cd3 Qe8 20.Qf3 Rd8 21.h6 Qb5 22.Qh3 Qd3 23.Kf3 Qe4 24.Kf2 Rd2 25.Ke1 Qg2 26.Qe6 Kh7 27.Qf5 g6 (27...g6 28.Qg6 Kg6 29.f5 Kh7 30.Rc1 Qh1#) 0–1. De Visser,Arno – Klausen, Odense, 1980.

6.Bb8 Rb8 7.Qg3 d6 8.Qg7 Rg8 9.Qh6 Qb6 10.Nc3 Qb2 11.Rb1 Qc2 12.Nge2 Be6?? 13.Nd4+– Qg6 14.Qg6 hg6 15.Nc6! Rc8 16.Ne7 Ke7 17.Rb7 Kf8 18.Ra7 Kg7 19.Be2 Nd5 20.Ne4 Rc6 21.0–0 Bf5 22.Ng5 Rc7 23.Rc7 Nc7 24.g4 Bd7 25.Rb1 Ne6 26.Ne4 Ra8 27.Nc3 d5 28.Bf3 Ng5 29.Bd5 Rd8 30.Rb4 Be6 31.Be6 Ne6 32.d4 Rc8 33.Ne4 Rc2 34.d5 Nf8 35.Rb7 Ra2 36.Ng5 Kf6 37.Nf7 g5 38.Nh8 Ng6 39.Ng6 Kg6 40.d6 Rd2 41.d7 Kf6 42.f4 Kg6 43.Kh1 gf4 44.ef4 Kf6 45.h4 Kg6 46.f5 Kh6 47.f6 Kg6 48.g5 Rd4 49.Kg2 Rd3 50.Kf2 (50.Kf2 Rd6 51.h5 Kh5 52.f7 Rd2 53.Ke3+–) 1–0. nitousche – coolerdude, ChessWorld.net, 2004.

6.Bb8 d6 7.Ba7= Ra7 8.Bd3 0–0 9.Ne2 Bg4 10.Qf4 d5 11.f3 Be6 12.Nd4 Bd7 13.Bf5 Be8 14.Nc3 g6 15.Bg4 h5 16.Bh3 Nh7 17.Nb3 Ng5= 18.0–0 Nh3=+ 19.gh3 Bd7 20.Kh1 Ra3 21.e4 d4 22.Ne2 c5 23.Rg1 Kh7 24.d3 b5 25.Qe5=+ f6 26.Qg3 Rg8 27.Nf4 Bd6 28.Qh4 Be8 29.Nd5 g5 30.Qf2 Bc6 31.c4 dc3 32.Nc5 Bd5–/+ 33.ed5 Bb8 34.Qd4 Qd6 35.Rg2=+ Qf4 36.Qf2 Rc8 37.d4 Kh8 38.h4= g4 39.fg4 hg4 40.Qg1 c2 41.Rc2+= g3 42.Rg2 gh2 43.Qf1 Rf3 44.Qe2 Qf5 45.Re1 Qd5 46.Ne4 Rf5 47.Qg4 Rg8 48.Qg8 Qg8 49.Rg8 Kg8 50.d5 Kg7 51.Rd1 Rf4 52.Nc5 Rc4 53.Nb7 Rc7 54.Nd8 Rd7 55.Nc6 Bf4 56.Nd4 Kg6 57.Nb5 Kh5 58.a4 Kh4 59.a5 Kg3 60.Rd3 Kf2 61.Nd4 Ke1 62.Rf3 Be5 63.Nc6 Rd5 64.Ne5 fe5 65.Ra3 Rd7 66.Re3 Kd2 ½–½. Herrchen,R – Pilz,E, PCM–2003–G11.16, 2005.

6.Qd1 d5 7.Nf3 0–0 8.Be2 Nbd7 9.Bb2 Qb6 10.Qc1 Nc5 11.Nc3 Bf5 12.0–0 Rae8 13.d4 Nce4 14.Ne4 Ne4 15.c4 Qa6 16.Rd1 Nd6 17.Nd2 f6 18.Kf1 dc4 19.Nc4 Qa4 20.Ba3 Nc4 21.Bc4 Kh8 22.Be7 Re7 23.Rd2 Qa5 24.a4 Rfe8 25.Kg1 Be4 26.Bd3 Bd5 27.Rc2 g6 28.Qa3 f5 29.g3 Qd8 30.Bf1 f4 31.ef4 Be4 32.Rd2 Bd5 33.Qc3 Qd7 34.Rdd1 Qe6 35.Bg2 Kg8 36.Bd5 Qd5 37.Qc5 a6 38.Qd5+= cd5 39.Rab1 Rc8 40.Kf1 Rc4 41.a5 Rec7 42.Ke2 Re7 43.Kf3 Rec7 44.h4 Kf7 45.Rd3 Ra4 46.Rdb3 Ra5 47.Rb7 Ra3 48.Kg4 Rac3 49.f5 Kg7 50.fg6+– hg6 51.Kg5 Kh7 52.R1b6 a5 53.Rc7 Rc7 54.Ra6 a4 (54...Rf7 55.g4+–) 1–0. Merten,Rainer – Pommerel,Wim, corr SOK–92–89, 1992.

6.Be2 d6 7.Bb2 0–0 =+.

5.Nf3 0–0

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

6.Be2 d5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 d5 6.Be2 c6).

4.e3 d6

5.Bb2 Bd7 6.Nf3 Nc6 7.c3 Ba5 8.d4 Qe7 9.Be2 0–0–0 10.0–0 h5 11.Nbd2 d5 12.Qb3 Bb6 13.c4 dc4 14.Nc4+/– Be6 15.Nb6 ab6 16.Qa4 Bd5 17.Rfc1 Kd7 18.Ne5 Ke8 19.Ba3+– Qe6 20.Bb5 Nd7? 21.e4 Be4 22.Bc4 Bd5 23.Bd5 Qd5 24.Nc6 bc6 25.Re1 Qe6 26.Qc6 Rh6 27.d5 (27.d5 b5 28.de6 (28.Qe6?! fe6 29.de6 Nb6+/–) 28...fe6 29.Re6 Kf7 30.Rh6 gh6 31.Qc7 h4 32.Qd8 Nf6 33.Bb2 Ne4 34.Qd7 Kg6 35.Qg7 Kh5 36.Qf7 Kg5 37.Bc1 Nd2 38.Bd2 Kg4 39.h3#) 1–0. woschkat (1995) – dennism (1800), net–chess.com, 2001.

5.Bb2 Nbd7 6.Nf3 0–0 7.a3 Ba5 8.Bc4 d5 9.Be2 c6 10.0–0 a6 11.d3 Re8 12.Nbd2 Ne5?? 13.Ne5 Bc7 14.Ndf3 Bg4 15.Rc1 Bf3 16.Nf3 Qd6 17.c4 Ng4 18.g3 Re7 19.Qb3 b5 20.cd5 cd5 21.Nd4 g6 22.Bg4 f5 23.Rc6 Qe5 24.Nf5! (24.Nf5 gf5 25.Be5 Be5 26.Qd5 Kg7 27.Bf3+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

5.Bc3 a5 6.Bb4 ab4 7.Be2 Be6 8.a3 0–0 9.Nf3 c5 10.0–0 Nc6 11.a4 Na5 12.Ng5 Bd5 13.Bf3 h6 14.Bd5 Nd5 15.Nf3 Qf6 16.d4 c4 17.Nbd2 Nc3 18.Qc1?? (Better is 18.Qe1–/+) 18...Ne2–+ (19.Kh1 Nc1 20.Rfc1 c3–+) 0–1. Heat – ArmadilloXing, Live Game Caissa's Web, 2004.

5.Bf4 d5 6.c3 Bc5 7.d4 Bd6 8.Bg5 h6 9.Bh4 g5 10.Bg3 Bg4 11.Be2 Be2 12.Qe2 Bg3 13.hg3 Ne4 14.Qc2 Qe7 15.Nd2 Nd2 16.Qd2 Nc6 17.Nf3 0–0–0 18.0–0 Qe4 19.Rab1 g4 20.Nh2 h5 21.Qb2 b6 22.a4 h4–/+ 23.a5? hg3 24.fg3 Qh7 25.a6?? Qh2–+ 26.Kf2 Qh6 27.Rh1 Qf6 28.Ke2 Qg5 29.Rh8 Rh8 30.Qb5 Qf6 31.Qc6 Qc6 32.Kd2 Qd6 33.Rc1 Qg3 34.Kc2 Qg2 35.Kb3 Rh2 36.c4 Qb2 37.Ka4 Qc1 38.Kb5 Qc4 0–1. slavisa99 – SirCharles, Live Game Caissa's Web, 2004.

5.Bf4 Bf5 6.c3 Bc5 7.d4 Bb6 8.Bg5 h6 9.Bh4 g5 10.Bg3 Nbd7 11.h4 g4 12.Bd3 Bg6 13.Qc2 Rg8 14.Bg6 fg6 15.Ne2 h5 16.Nf4 Nf8 (16...Qe7 17.Nd2+= (17.Ng6? Qh7–+)) 17.a4 Qe7?? (Better is 17...c6+/–) 18.a5+– Bd4 19.cd4 0–0–0 (19...c6 20.a6+–) 20.Nd2 (20.a6!? Qe4 21.ab7 Kb8+–) 20...N6d7 (20...Ne6 21.a6 b6+–) 21.Nd5 (21...Qe3 22.fe3+–) 1–0. slavisa10 – Mirjana6, Live Game Caissa's Web, 2004.

5.Bg3 Nc6 6.Nf3 Bg4 7.Be2 Nh5 8.h3 Ng3=+ 9.fg3 Bh5 10.g4 Bg6=+ 11.0–0 d5 12.Bb5 0–0 13.Bc6 bc6 14.c4 Bd3–/+ 15.Rf2 Bc4 16.Ne5 Ba6?? 17.Qa4 Bd6 18.Nc6 Qc8 19.Nc3 Bb7 20.Nd5+= Bc6 21.Qc6+/– Rb8 22.Raf1 Qb7 23.Qc4 c6 24.Ne7?? Be7 25.Rf7–/+ Rf7 26.Rf7 Kh8 27.Qd4 Rg8?? 28.Qe5?? Qb1–/+ 29.Kh2 Bf6 30.Qd6?? Qb5?? 31.d4 Qc4 32.Ra7=+ Rd8 33.Qc7= h6 34.a4 Qd3 35.Qf4 Qd2 36.Rb7? Bg5 37.Qf7? Rg8–+ 38.Qb3 Be3 (38...Be3 39.Rf7 Re8–+) 0–1. gtate (1750) – nhathuy, net–chess.com, 2001.

5.Bb2 0–0

6.a3 Ba5 7.c4 c5 8.Qb3 Qb6 9.Qb6+= ab6 10.Bf6 gf6 11.Be2 Re8 12.Nf3 Nc6 13.0–0 Bd7 14.Bd1 Ne7 15.d4 cd4 16.Nd4+/– Rac8 17.Bb3 Ng6 18.Ra2 Ne5 19.Rc2 Nd3 20.Rd1 Nc5 21.Nd2 Bd2+= 22.Rcd2 Nb3 23.Nb3 Ba4 ½–½. Hoelldorfer,August – Klose,Hans Peter, Schloss Schney, 1997.

6.c3 Ba5 7.Be2 Nc6 8.Nf3 Ne5 9.h3 b6 10.0–0 Bb7 11.d4 Nf3 12.Bf3 Bf3 13.Qf3 Re8 14.c4 Ne4 15.Rd1 Ng5 16.Qg3 d5 17.cd5 Qd5 18.Nc3?? Bc3–+ 19.Bc3 Ne4 20.Qf3 c6?? 21.Bb2 Rac8 22.Qe2 Qe6 23.Rd3 Qg6 24.d5 Nc5 25.Rd2 cd5 26.Rd5 Qe4 27.Rad1 Na4 28.R5d4+= Qc6 29.Rc1 Nc5 30.Rf4 Qe6 31.Qg4 Qg4 32.Rg4 g6 33.Rd4 Red8 34.Ba3 Ne6= 35.Rd8 Rd8 36.Be7 ½–½. gtate (1920) – flgs (2015), net–chess.com, 2004.

6.c3 Ba5 7.Qf3 Nc6 =+.

6.c3 Ba5 7.Nf3 c5 8.Be2= Bf5 9.d4 Nc6 10.Na3 Ne4 11.Rc1 cd4 12.ed4 d5 13.0–0 Rc8 14.c4 Nb4 15.Qb3= Bg4 16.Nb1 Ng5 17.cd5 Qd5 18.Nbd2 Nf3 19.Nf3 Be6 20.Qd5 Bd5 21.a3 Na2 22.Rc8 Rc8 23.Bd3 f6 24.Rb1 Nc3 25.Rc1 Be4 26.Bf1 Rc6 27.Nh4 g5 28.f3 Bb6 29.Bc3 Rc3 30.Rc3 Bd4 31.Kh1 Bc3 32.fe4 gh4 33.Bc4 Kf8 34.Kg1 Ke7 35.h3 Kd6 36.Be2 Ke5 37.Kf2 Kf4 38.a4 a6 39.Bf3 b5–/+ 40.ab5 ab5 41.Ke2 b4 42.Kd3 h6 43.Bg4 Kg3 44.Bf3 Kf2 45.Bg4 Kg2–/+ 46.Kc4 Kf2 47.Bf5 ½–½. Baer,Werner – Winiger,Albert, TT–06 TSC, 2003.

6.c3 Bg4 7.f3 +–.

6.c4 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2).

6.c4 Nc6 7.Nf3=+ Bg4 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6 7.Nf3 Bg4).

6.c4 Re8 7.Nf3 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Nc6 7.Nf3 Re8).

6.c4 Bf5 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d6 6.Bb2 Bf5).

6.Bd3 Nc6 7.Nf3 =+.

6.Bd3 Bg4 7.f3 Bh5 8.g4= Bg6 9.Qe2 Nc6 10.h4 Bd3 11.Qd3 Ne5 12.Qb3= Ba5 13.Nc3 Bb6 14.Nd5 Nd5=+ 15.Qd5 c6 16.Qe4 Re8 17.Qf4 Bc7 18.Ne2? d5–+ 19.Qb4 Nf3 20.Kd1 a5 21.Qa3 Bd6 22.Qd3 b5 23.Nd4 Nd4 24.Bd4 c5 25.Bb2 c4 26.Qd5–/+ Rc8 27.Rf1=+ Qe7 0–1. TheSmoker – crazyduck, caissa.com, 2006.

6.Be2 Nc6 7.Nf3 Bf5 8.0–0 Re8 9.d3 d5 10.Nbd2 Rb8 11.c4 Bd2 12.Qd2=+ dc4 13.dc4 Qd2 14.Nd2 Rbd8 15.Nb3 Nd7 16.Rfd1 f6 17.Bh5 Bg6 18.Bg6+= hg6 19.Rac1 Nde5 20.Rd8 Rd8 21.Be5 Ne5 22.Kf1 Kf7 23.c5 g5 24.Nd4 g4 25.Ke2 g6 26.a4 Rh8 27.c6+= bc6 28.Nc6 Nc6 29.Rc6 (29.Rc6 Rh2 30.Rc7 Ke6 31.g3+/–) 1–0. Woelfelschneider,Peter – Schulz,Hans_Juergen, T16–05 TSC, 2003.

6.Be2 Re8 7.Nf3 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 0–0 6.Nf3 d6 7.Be2 Re8).

6.Be2 Bf5 7.Nf3 c5 8.0–0 d5 9.d3 Nc6 10.Nbd2 d4 11.a3 Ba5 12.Nb3 Bb6 13.c4 de3 14.fe3 Ng4 15.Qd2 Qe7 16.Ne5 Nge5 17.Rf5 Rad8 18.Qc3 f6 19.Rd1 Qe6 20.Rf4= Nf7 21.Bc1 Bc7 22.Nc5+/– Qe7 23.Rf5 Be5 24.d4 Nh6 25.Rff1 Qc5= 26.de5 Ne5 27.Qb4 Qc6 28.Bb2 Qe4 29.Bd4 Nf5 30.Rf4 Nd4 31.Re4 Ne2 32.Kf2 Rd1 33.Ke2 Rd7 34.Rd4 Rc7 35.c5 Rfc8 36.Qb3 Kf8 37.Qd5 Re7 38.h3 Nc6 39.Re4 Ne5 40.Ra4 Nc6 41.Qf5 Rce8 42.Qh7 Re3 43.Kf2 R3e7 44.h4 Rd8 45.h5 Rd2 46.Kg1 Nd4 47.Kh2 Nf3 48.Kg3 Ng5 49.Qf5 Re3 50.Kh4+– Ne6 51.Qb1 Rg2 52.Qb7+– Rh2 53.Kg4 f5 54.Kf5 Rh5 55.Kg4 Rg5 56.Kh4 ½–½. Woelfelschneider,Peter – Winiger,Albert, TT–06 ETC, 2003.

6.Qf3 Nbd7 =+.

6.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 d6 5.Bb2 0–0 6.e3).

6.Nf3 Nc6 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 0–0 6.Nf3 d6).

5.Bb2 c6

6.a3 Ba5 7.Nf3 Bg4 8.h3 Bh5 9.g4 Bg6 10.g5 Nh5 11.Be2 Nd7 12.Rg1+= Qc7? 13.Nd4 Bb6 14.Bh5 d5 15.f4 Rg8 16.Bg4 0–0–0 17.f5 Bd4 (17...Bd4 18.Bd4 c5+–). b4_player (2175) – cozmicblue (1660), GameColony.com, 2004.

6.Nf3 0–0 A) 7.Be2 A1) 7...Be6 8.a3 Bc5 9.d4 Bb6 10.0–0; A2) 7...Re8 8.a3 Ba5 9.0–0 Qe7 10.c4; A3) 7...d5 8.0–0 Bd6 9.a4 Re8 10.Nc3; B) 7.a3 Ba5 8.Be2 Be6 9.0–0 b5 10.Nd4.

6.Nf3 Be6 A) 7.Be2 A1) 7...0–0 8.a3 Ba5 9.0–0 Nbd7 10.c4; A2) 7...Nbd7 8.a3 Ba5 9.0–0 0–0 10.Nd4; A3) 7...d5 8.0–0 0–0 9.Nd4 Bd6 10.f4; B) 7.c3 Ba5 8.Be2 0–0 9.0–0 Nbd7 10.Nd4; C) 7.a3 Ba5 8.Be2 0–0 9.0–0 Nbd7 10.Nc3.

6.Nf3 Bf5 A) 7.Be2 A1) 7...0–0 8.a3 Bc5 9.0–0 d5 10.d3; A2) 7...Bc5 8.0–0 0–0 9.d4 Bb4 10.c4; A3) 7...d5 8.0–0 0–0 9.Nd4 Qd7 10.Nc3; B) 7.Nc3 B1) 7...Bc3 8.Bc3 0–0 9.Be2 Nd5 10.Bb2; B2) 7...Nbd7 8.Be2 0–0 9.0–0 d5 10.Nd4; B3) 7...0–0 8.Be2 Re8 9.0–0 d5 10.Rb1; C) 7.a3 C1) 7...Ba5 8.Be2 0–0 9.0–0 Be6 10.Nd4; C2) 7...Bc5 8.d4 Bb6 9.Bd3 Bd3 10.Qd3.

6.Nf3 Bg4 7.h3 Bf3 8.Qf3+= Nbd7 9.a3 Ba5 10.Qg3 Qe7 11.Qg7+/– 0–0–0 12.Qg5 Bb6 13.Qf5 Rhg8 14.Nc3 Kb8 15.Na4 Qe4 16.Qe4+– Ne4 17.Nb6 Nb6 18.g4 Rg5? 19.Bd3+– Re8 20.f3 Nc5 21.Bh7 Nca4 22.h4 Rb5 23.Bd4 c5 24.Bg7 c4 25.h5 c3 26.Bd3 Rc5 27.h6 1–0. Gerold – Polasek, corr ICCF, 1999.

5.Bb2 Nc6

(--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 d6).

6.c4 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 Nc6 5.Bb2 d6 6.e3).

6.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 0–0 6.Nf3 d6).

5.Bb2 d5

6.Bb5 c6 7.Be2 =+.

6.Nf3 Bg4 7.Be2 Nbd7 8.0–0 0–0 9.d4 Ne4 10.c3 Bd6=+ 11.Nbd2 Ndf6 12.c4= Nd2 13.Nd2 Be2 14.Qe2 dc4 15.Nc4 Re8 16.Nd6 Qd6 17.Rfc1 c6 18.Rab1 b5 19.Rc2 h6 20.Rbc1 Rac8 21.f3 Nd5= 22.e4 Nb6 23.Qd3 Nc4 24.Qc3 f6 25.a4 a6 26.Qb3 Kh8 27.Rd1 Rcd8 28.Rcc1 Qe6 29.ab5 ab5 30.Ba1 Rb8 31.d5 cd5 32.Rd5 Qb6 33.Bd4 Qb7 34.Ra1 Red8= 35.Ra7 Qc6 36.Qc3 Rd5 37.ed5 Qd5 38.Bf6+/– Qd1 39.Kf2 Re8 40.Bg7 Kg8 41.Bh6 Re2 42.Kg3 Qd6 43.Bf4 Qg6 44.Kh4 Rg2 45.Ra8?? Kf7+= 46.Qh8 Qf6 47.Qf6 Kf6 48.Rb8 Rb2 49.Kg4 b4 50.h4 b3 51.Rb4 Rb1? 52.Bg5+– Kg7? 53.Rc4 Rg1 54.Kf5 b2 (54...Rf1 55.f4 Rd1 56.Bf6 Kf7 57.Rc7 Ke8 58.Ke6 Re1 59.Be5+–) 1–0. Ferreiro Montoya,Juan Ignacio (2265) – Neira,Manuel (1725), San Sebastian op, 1996.

6.Nf3 Bg4 7.Be2 Bf3 8.Bf3 Nbd7 9.0–0 c6 10.a3 Bc5 11.d4 Bd6 12.Nd2 Qc7 13.a4 Bh2 14.Kh1 Bd6 15.c4 0–0 16.c5 Be7 17.e4 de4 18.Ne4 Ne4 19.Be4 Qf4 20.Qf3 Qf3 21.Bf3 Bf6 22.Ra2 Rac8 23.d5 cd5 24.Bd5 Rc5 25.Bb7 Bb2 26.Rb2 Nb6 27.Ra2 Rb8 28.Bf3 a5 29.Rb1 Nd7 30.Rb8 Nb8 31.Rb2 Rc8 32.Rb5 g6 33.Ra5 Nc6 34.Bc6 Rc6 35.Ra8 Kg7 36.a5 Rc1 37.Kh2 Ra1 38.a6 h5 39.g3 g5 40.Kg2 g4 41.Ra7 Kg6 42.Ra8 Kf5 43.Ra7 f6 44.Ra8 Ra2 45.Ra7 Ra3 46.Ra8 Ra4 47.a7 Ra1 48.Kh2 Ra4 49.Kg2 Ra2 50.Kf1 Ra3 51.Ke2 Ra5 52.Rh8 Ra7 53.Rh5 Kg6 54.Rd5 Re7 55.Kf1 Ra7 56.Kg2 f5 57.Rd2 Ra3 58.Rc2 Rb3 59.Rd2 Rc3 60.Rb2 Rd3 61.Re2 Rc3 62.Rb2 Rd3 63.Rb8 Rd2 64.Rg8 Kf7 65.Rg5 Kf6 66.Rh5 Kg6 67.Rh1 Kg5 68.Rh4 f4 69.Rh1 f3 70.Kh2 Rf2 71.Kg1 Rg2 72.Kf1 Rg3 73.Kf2 Kf4 74.Re1 Rg2 75.Kf1 Rh2 76.Re8 Kg3 77.Rg8 Rh1 0–1. jarda1000 – nassi525, internet, 2013.

5.Bb2 Be6

6.a3 Ba5 7.c4 d5 8.Qb3 b6 9.Nc3 dc4 10.Bc4= Bc4 11.Qc4 0–0 12.Nge2 Nbd7 13.f4 Nc5=+ 14.Nd4 Bc3 15.Bc3=+ Nce4 16.0–0 Nc3 17.dc3 Ne4 18.Rad1= Nd6 19.Qc6 Qe7 20.Rf3 g6 21.f5+= Nf5 22.Nf5+/– gf5 23.Rg3 Kh8+= 24.Rd7 Qa3?? 25.Qf6# 1–0. bentengutama (1955) – mpopp (1845), net–chess.com, 2003.

6.Qf3 d5 =.

6.Nf3 0–0 7.Be2 Nc6 8.0–0 d5 9.d4 Re8 10.Nbd2 a6 11.c4 Bd2 12.Qd2 Ne4 13.Qc2 Bf5 14.Bd3 Nb4 15.Qb3 Nd3 16.Qd3 Ng3 17.Qb3 Nf1 18.Kf1 Bd3 19.Qd3 dc4 20.Qc4 b5 21.Qd3 c5 22.Rd1 Rc8 23.dc5 Qd3 24.Rd3 Rc5 25.Rd6 Rc2 26.Rd2 Rd2 27.Nd2 Rd8 28.Ke2 Rc8 29.Kd3 f6 30.Nb3 Kf7 31.Bd4 Ke6 32.Nc5 Kd5 33.e4 Kd6 34.Na6 Ra8 35.Nb4 Ra4 36.Bc3 Kc5 37.f4 Rb4 38.Bb4 Kb4 39.Kd4 Ka3 40.e5 fe5 41.fe5 Ka2 42.e6 1–0. Trkn – Marcus, itsyourturn.com, 2000.

6.Nf3 h6 7.Be2 a6 8.0–0 c5 9.d4 cd4 10.Nd4 Bd5? 11.c4 Be4?? 12.Nd2 Bg6?? 13.a3 Bc5+/– 14.Bf3 Qe7 15.N2b3 Bb6 16.Rc1 Be4 17.Be4 Ne4? 18.Nf5+– Qg5 19.Ng7 Kd7 20.c5! Bc5 21.Nc5 Nc5 22.Ne6! Ne6 23.Bh8 f6 24.Qf3 Nc6 25.Bf6 Qg6 26.Bc3 Rg8 27.Qg3 Qf7 28.Qh3 Qg6 29.Rfd1 Kc7 30.Qg3 Ng5 31.h4 Ne4 32.Qg6 Rg6 33.Bb4 Kb8 34.Be1 Ne5 35.f3 Nf3 36.Kh1 Ne1 37.Re1 Nf2 38.Kg1 Nd3 39.Red1 Nc1 40.Rc1 Rf6 41.Rc4 b5 42.Rc3 Kb7 43.g3 a5 44.Kg2 Kb6 45.e4 b4–/+ 46.ab4 ab4 47.Rc8 Kb5 48.Kh3 b3 49.Rb8 Kc4 50.Rb6 Re6–+ 51.Kg2 Re4 52.Kf3 d5 53.Rh6 b2 54.Rb6 Kc3 55.Rb2 0–1. amikhlin (2300) – chadpalmer (2110), net–chess.com, 2002.

6.Nf3 Nbd7

7.a3 Ba5 A) 8.Nd4 0–0 9.Be2 Nc5 10.c3 c6; B) 8.Be2 0–0 9.0–0 Nb6 10.Nc3 Qe7.

7.Nd4 A) 7...d5 A1) 8.Ba6 Rb8 9.Be2 0–0 10.0–0 c5; A2) 8.a3 Bd6 9.Be2 0–0 10.Nc3 c5; A3) 8.Be2 0–0 9.0–0 c5 10.a3 Ba5; B) 7...0–0 B1) 8.Be2 d5 9.0–0 c5 10.a3 Ba5; B2) 8.Ne6 fe6 9.a3 Ba5 10.Be2 Nc5; B3) 8.a3 Ba5 9.Be2 Nc5 10.c3 c6.

7.Be2 Nb6 A) 8.Nd4 d5 9.Ne6 fe6 10.0–0 0–0; B) 8.c3 Ba5 9.Nd4 c6 10.Ne6 fe6; C) 8.a3 Ba5 9.Nd4 0–0 10.Nb3 Na4.

7.Be2 c6 8.a3 Ba5 9.0–0 =.

7.Be2 d5 A) 8.Nc3 0–0 9.0–0 Qe7 10.Rb1 c6; B) 8.0–0 0–0 9.Nc3 Qe7 10.Nb5 c6.

7.Be2 Qe7 8.0–0 0–0–0 9.c4 Nc5 10.d4+/– Nce4? 11.Qa4+– Kb8? 12.Qb4 Rhe8 13.d5 Bd7 14.a4 Ng4 15.h3 Ngf2 16.Rf2?? Nf2+/– 17.Kf2 Qe3= 18.Kg3 Qe2 19.Nc3 Qd3 20.Rd1 Qg6=+ 21.Kf2 Re7 22.Bc1 Rde8=+ 23.a5 a6 24.Qb2 Bf5 25.Bg5 f6 26.Bf4 Bc8?? 27.c5+/– dc5 28.d6 Rd7 29.dc7 Ka8 30.Rd7 Bd7 31.Nd5 Re6 32.Nb6 (32.Nb6 Rb6 33.Qb6 Qc2 34.Kg3 Qg6 35.Kh2+–) 1–0. hal1958 – Gorodish, playchess.de, 2002.

7.Be2 0–0

8.0–0 Nb6 9.a3 Ba5 10.Nc3 Nc4.

8.0–0 Nb6 9.a3 Bc5 10.d4 +–.

8.0–0 d5 9.Nc3 Qe7 10.Nb5 c6.

8.0–0 Re8 9.a3 Ba5 10.Nd4 Qe7.

8.0–0 Re8 9.c4 Nf8 10.d4 c6 11.a3 Ba5 12.Nc3 d5 13.cd5 Nd5 14.Qc2 Ng6 15.Nd2 Nc3 16.Bc3 Bc3 17.Qc3 Bd5 18.g3 Qf6 19.Qd3 Re7 20.Bg4 Rae8 21.Qf5 Qd6 22.Bf3 Bf3 23.Nf3 Re6 24.Qc2 h6 25.Nd2 Qd5 26.Qc4 Qh5 27.Rfb1 Qh3?? 28.Qf1?? Qh5 29.Rb7+/– Rf6 30.Rb3 Qf5 31.Rab1+– Qc2 32.R1b2 Qf5 33.Rb8 Rb8 34.Rb8 Kh7 35.Rb2 Ne7 36.Qb1 Qb1 37.Rb1 Nd5 38.Ne4 Re6 39.Nc5 Re7 40.Rb7 Rb7 41.Nb7 Kg6 42.Na5 Ne7 43.Kg2 Kf5 44.Kf3 Ke6 45.Ke4 f5 46.Kd3 g5 47.Kc4 h5 48.Nc6 Nc6 49.d5 Kd6 50.dc6 Kc6 51.f3 Kd6 52.Kd4 a6 53.h4 f4 54.ef4 gh4 55.gh4 Ke6 56.Ke4 Kf6 57.f5 (57…Ke7 58.Kd5+–) 1–0. Kolb,Wolfgang – Miller,Hans Werner, Augsburg op 2nd, 1995.

8.a3 Ba5 9.0–0 Nb6 10.Nc3 Nc4.

8.Nd4 d5 9.0–0 c5 10.Ne6 fe6.

5.Bb2 Bf5

6.a3 Bc5 7.Nc3 a6 8.Qf3 Bc2 9.Qb7 Nbd7 10.Bc1 Ng4 11.Qf3 Nde5 12.Qg3= c6 13.f4+/– Nd3 14.Bd3+– Bd3 15.Qg4 Qf6 16.Bb2 h5 17.Qf3 0–0 18.Na4 Qe6 19.Nc5 dc5 20.Qh5 f6 21.Qc5 Rab8 22.Bc3 Rb5 23.Qd4 Bc2 24.d3 Rd5 25.Qe4 Re8 26.Qe6 Re6 27.d4 Re3 28.Kd2 Rc3 29.Kc3 Be4 30.Ra2 c5 31.dc5 Rc5 32.Kd4 Bd5 33.Kc5 Ba2 34.Nf3 a5 35.Kb5 a4 36.Ka4 Kf7 37.f5 Bd5 38.Re1 Kg8 39.Nh4 Kh7 40.g3 Kh6 41.Kb4 Kg5 42.a4 Bf7 43.Re7 Bd5 44.Rg7 Kh6 45.Rg6 Kh7 46.Rf6 Kg7 47.Rd6 Ba2 48.a5 Bf7 49.f6 Kh6 50.a6 Kh5 51.a7 Kg4 52.a8Q Kg5 53.h3 Ba2 54.Qh8 Bf7 55.Qg7 (55.Qg7 Kh5 56.Qf7 Kh6 57.Qg6#) 1–0. Waibel,Ulrich (1650) – Witt,Monika, remoteschach.de, 2004.

6.Qf3 Bc8 += (6...Bc2? 7.Qb7 Nbd7 8.Qb4+–).

6.Nf3 Nbd7 7.c3 Bc5 8.d4 Bb6 9.Nbd2 0–0 10.Be2 Re8 11.0–0 c5 12.Qb3 Be6 13.Qa4 1–0. dottore – Mathew_Cooke, playchess.de, 2001.

6.Nf3 Nbd7 7.Be2 0–0 8.0–0 c6 9.c4 (9.a3 Ba5=) 9...d5 10.cd5 Nd5 11.d3 Bg6 (11...Re8 12.a3 Bd6 13.Nc3=) 12.Qc2 Qc7 (12...Re8 13.Nc3 Bc3 14.Bc3 Nc3 15.Qc3=) 13.Rc1 Bd6 (13...Rfe8 14.Nc3 Qd6 15.Nd5 cd5 16.Qc7+=) 14.g3 (14.Nbd2 Bh5 15.h3 Rfe8=) 14...Nc5 15.e4 Nb6 16.Nbd2 Rfe8 17.Nh4 Rad8 (17...Nca4 18.Ng6 Nb2 19.Qb2 fg6 20.d4=) 18.a4 a5 (18...Qe7 19.f4 h6 20.Ng6 fg6 21.a5+/–) 19.Nc4 (19.Ng6 fg6 20.d4 Ne6+=) 19...Nc4= 20.Qc4 Na6 (20...Kh8 21.f4 Qd7 22.f5+– (22.Ng6?! fg6 23.Rab1 b5 24.ab5 cb5=)) 21.Ng6+= hg6 22.Bf3 Nb4 23.d4 Qd7 24.Bg2 Qe6 (24...g5 25.Rab1=) 25.d5 (25.f4 Qg4+=) 25...cd5= 26.ed5 Qe2 27.Ba3 b6 28.Bf1 Qc4+= 29.Bc4 Re7 30.Rd1+= Rc7 31.Rac1 Rdc8 32.Bb3 Bc5 33.d6 Rd7= 34.Bb2 Rcd8 35.Be5 Bd6 36.Bd6+= Rd6 37.Rd6 Rd6 38.Rc8 Kh7 39.Bf7 Na6 40.h4 Nc5 41.f4 Rf6 42.Bg8 Kh8 43.Kg2 Rd6 44.Kh3 Rd4 45.Bf7 Kh7 46.Rc6 Rd8 47.Bg6 Kg8 48.Rb6 Na4 49.Ra6 Kf8 50.Ra5 Nb6 51.Rf5 Kg8 52.Bf7 Kf8 53.Bb3 Ke8 54.Kg4 Rd3 55.Bc2 Rc3 56.Rb5 Nd7 57.Bg6 Kf8 58.h5 Nf6 59.Kh4 Rc1?! 60.Rb8 Ke7 61.Rb7 Kf8 62.g4 Rf1 63.Kg5 Rf2 64.Bf5 Rd2 65.h6 (65.h6 Ne4 66.Be4 gh6 67.Kh6+–) 1–0. Danek,Vaclav – Bargel,P, Klatovy op–B, 1996.

6.Nf3 Nbd7 7.Be2 0–0 8.0–0 c6 9.Nd4 Bg6 10.f4 =.

6.Nf3 Nbd7 7.Be2 0–0 8.0–0 Re8 9.a3 Bc5 10.d4 Bb6 11.Bd3 Bd3 12.Qd3 Ne4 13.Nc3 Nc3 14.Bc3 c6 15.Rfb1 Rb8 16.Qf5 Nf6 17.Bb4 Bc7 18.c4 Qd7 19.Qd7+= Nd7 20.h3 Nf6 21.Rc1 d5 22.cd5 Nd5 23.Rab1 f6 24.Kf1 Nb4 25.Rb4 Bd6 26.Rb3 Re7 27.a4 a6 28.a5 Rd8 29.Ke2 Rdd7 30.Nd2 f5 31.Nc4 f4 32.Rcb1 Bb8 33.Kd3 fe3 34.fe3 Bg3 35.Rf1 Rf7 36.Rbb1 Rf1 37.Rf1 Rf7 38.Rb1 Kf8 39.Nd2 Ke8 40.Ne4+– Bb8 41.Nc5 Bc7 42.Rb7 Ba5 43.Rf7 Kf7 44.Na6 Ke6 45.e4 Bb6 46.Kc4 g5 47.Nc5 Kd6 48.e5 Ke7 49.g4 Kf7? 50.Na6 Ke6 51.Nb8 c5 52.d5 Ke5 53.Nd7 Kf4 54.Nb6 Kg3 55.d6 Kh3 56.d7 Kg4 57.d8Q h5 58.Nd7 h4 59.Ne5 Kf5 60.Kd5 h3 61.Qf8# 1–0. pierre – bosperty, ChessHere.com, 2005.

6.Nf3 0–0

7.a3 Bc5 8.Be2 =.

7.Be2 c5 8.0–0 Nc6 9.c4 Re8 10.Nc3 a6 11.d3 b5 12.Nd5 Nd5 13.cd5 Ne7 14.Qb3 Ba5 15.Rfc1 Ng6 16.h3 Rb8 17.Bf1 Nh4 18.Qd1 Nf3 19.Qf3 Qg5 20.Be2 Bg6 21.a4 b4 22.Rc4 h5 23.h4 Qh6 24.Qg3 Rbd8 25.d4 Bb6 26.a5 Ba7 27.Rd1 Bf5 28.dc5 dc5 29.Bh5 Bb8 30.Qf3 g6 31.Bg4 Bg4 32.Qg4 f5 33.Qh3 Bd6 34.Rd2 Rd7 35.g4 Rf7 36.h5 Kf8 37.Qh4 fg4 38.Rg4 Qh5 39.Qh5 gh5 40.Rg6 Ke7 41.Rc2 Kd7 42.Rc4 Ref8 43.Rg2 Rh7 44.Rg6 Re7 45.Rg5 Rf3 46.Rg6 Ref7 47.Rc2 b3 48.Re2 c4 49.Rh6 Rh3 50.Kg2 Rh2 51.Kf1 h4 52.Rg6 Rh1 53.Kg2 Rd1 54.Rg4 h3 55.Kh3 Rh7 56.Kg2 Rd5 57.Kf3 Rc5 58.Bc3–/+ Kc6 59.Rg6 Rd5 60.Re1 Kb5 61.Rc1 Rd7 62.Rh6 Rd3 63.Bb2 Rc7 64.Ke4 Bc5 65.Rh8 Ba7 66.Rh5 Kb4 67.Rh8 Re7 68.Kf3 Rf7 69.Ke2 Rf2 ½–½. Ganesan – Miraglia,Jorge, email 4AMM–F 1997–99.

7.Be2 c5 8.c4 Nbd7 9.Bc3 Bb1 10.Bb4 Ba2 (10...Bf5 11.Bc3=) 11.Bc5 (better is 11.Bc3!? Bc4 12.Bc4+/–) 11...dc5 12.Ra2 Qc7 13.d3 a5 14.Qa4 Nb6 15.Qb5 a4 16.Bd1 Ra6 17.Ba4?? (better is 17.0–0 Rfa8 18.Ra3=) 17...Rfa8 18.Bb3 Ra2 19.Ba2 Ra2 20.0–0 Nbd7 21.h3 b6 22.Qb1 Qa7 23.Rd1 Qa4 24.Rd2?? (24.Rf1–+) 24…Ra1 (24...Ra1 25.Qf1 Rf1 26.Kf1 b5 27.cb5 Qb5–+) 0–1. Knabe,Johan – De Jongh,Alejandro, IECG, 2009.

7.Be2 Nc6 8.0–0 Ba5 9.d3 d5 10.Nbd2 Bb6 11.Nb3 h6 12.c4 dc4 13.dc4 Qd1 14.Rad1 Nh7 15.c5+– Ba5 16.Na5 Na5 17.Nd4 Be4 18.Nb5 c6 19.Nd6+– Bg6 20.Bc3 b6 21.Ba5 ba5 22.Bf3 Ng5 23.Bc6 Rad8 24.f4 Nh7 25.e4 Nf6 26.e5 Nd7 27.Nb7 (27.Nb7 Nc5 28.Rd8 Nb7 29.Rf8 (29.Bb7?! Rd8 30.f5 Bh5+/–) 29...Kf8 30.Bb7+–) 1–0. pierre – agarr, ChessHere.com, 2005.

7.Be2 Nc6 8.0–0 a6 9.a3 Ba5 10.c4 Re8 11.Nc3 h6 12.Nd5 Nd5 13.cd5 Ne5 14.Nd4 (14.d3 Qf6 15.Nd4 Bd7=) 14...Bh7 (14...Be4 15.Qa4 Bd2 16.Ne6 fe6 17.Qe4+=) 15.Nf3 (15.d3 Qe7+=) 15...b5 (15...Be4 16.d4 Ng6 17.Qb3–/+) 16.h3 (16.d3 Qf6 17.Nd4 Bb6+=) 16...Nd3 17.Bd3 (17.Bc3 Bb6+=) 17...Bd3 18.Re1 Qd7 19.Qb3 (better is 19.Nd4!?–/+) 19...Bc4–+ 20.Qd1 Bd5 21.Nd4 c5 22.Nf3 Rac8 23.Rf1 Qf5 24.Nh4 Qd3 (better is 24...Qe4 25.Nf3 Qd3–+) 25.Bc1?? (better is 25.Qg4!? g6 26.Qf4–+) 25...c4 (better is 25...Bd8 26.Bb2 Bh4 27.Qg4–+) 26.Bb2 Qe4 27.Nf3 Re6 28.Kh1 Rg6 29.Qe2 Re8 30.Rfd1 Ree6 31.d3 cd3 32.Rd3 Bc4 33.Rad1 d5 34.Rd4 Qd4 35.Nd4 Be2 36.Ne2 Rd6 37.Nf4 Rge6! 38.Ne6 fe6 39.Kh2 Rc6–+ 40.f3 Rc2 41.Bd4 Kf7 42.h4 g6 43.Kh3 Bc7 44.g3 Bd6 45.f4 Ba3 46.Ra1 b4 47.Kg4 a5 48.h5 gh5 49.Kh5 Rh2 50.Kg4 Ke8 51.f5 h5 52.Kf3 ef5 53.Kf4 h4 54.gh4 Rh4 55.Kf5 Kd7 56.Ke5 Kc6 57.Ra2 Re4 58.Kf5 Kb5 59.Ba7 Kc4 60.Rc2 Kb3 61.Re2 Bb2 62.Bb6 a4 63.Rd2 Re5 64.Kf4 a3 65.Bd4 Bd4 66.ed4 Re4 67.Kf3 a2 68.Rd3 Kc2 (68...Kc2 69.Re3 a1Q 70.Re4 Qh1 71.Kg4 Qe4 72.Kg3 b3 73.Kf2 Qf4 74.Kg2 b2 75.Kh3 b1Q 76.Kg2 Qbf1#) 0–1. Neumann,Frank (1650) – Zornack,Andre (1985), RSS7E easy–58, 2007.

5.Bc3 Bc3

6.Nc3 c5 7.Bc4 Bg4 8.Nge2 Be2 9.Qe2= 0–0 10.Nd5 Nbd7 11.Rb1 Nd5 12.Bd5+= Qg5 13.Rb7?? Qd5–/+ 14.Rd7 Qa2 15.Qd1 Rab8 16.Ke2 Qc4 17.Kf3 Qd5 18.Ke2 Qg2 19.Qf1?? Qg4–+ 20.f3 Qd7 21.h4 Qb5 22.d3 Qb2 23.Qd1 Rfe8 24.Qd2 Rbc8 25.h5 c4 26.d4 c3 27.Qd3 a5 28.h6 g6 29.f4 a4 30.d5 a3 31.Qd4 Kf8 32.Qh8 Ke7 33.Qh7 Qb5 34.Kf3 Qd5 (34...Qd5 35.e4 Qd2–+) 0–1. coolerdude – Manners, ChessWorld.net, 2005.

6.Nc3 c6 7.Nf3=.

6.Nc3 Nbd7 7.Nf3 0–0 8.Be2 a6 9.0–0 Re8 10.Rb1 =.

6.Nc3 Be6 7.Nf3 0–0 8.Rb1 b6 9.d4 c6 10.Bd3 =.

6.Nc3 0–0

7.Bd3 Nc6 8.Nge2 Nb4 9.Nc1 Re8 10.0–0 Be6 11.Qe2 a6 12.f3 b5 13.a3 Nd3 14.Nd3 Bc4 15.Qf2 c5 16.e4 d5 17.ed5 Bd3 18.cd3 Nd7 19.Ne4 Rc8 20.Rac1 Qb6=+ 21.Kh1 a5 22.f4 b4 23.ab4 ab4 0–1. malaysianisme – minn (2000), net–chess.com, 2004.

7.Be2 c6 8.Nf3 b5 9.0–0 Re8 10.Rb1 =+.

7.Be2 Nc6 8.d4 d5 9.Nf3 Ne4 10.Ne4 de4 11.Nd2 Bf5 12.c4 Bg6 13.0–0+= Qe7 14.c5 Nb4 15.Qb1 Nd3 16.Rd1 b6= 17.cb6 cb6 18.Ne4 Nf2=+ 19.Kf2 Be4 20.Bd3 Qh4 21.Kg1 f5 22.Bc4 Kh8=+ 23.Qb4 Qg5 24.Qd2 f4 25.ef4 Rf4 26.Qb2? Rg4 27.Bf1=+ Qe3 28.Qf2= Qf2 29.Kf2 Rf8 30.Ke3 Bg2–/+ 31.Bg2 Rg2 32.d5 Rg4 33.d6 Kg8 34.Rac1 Kf7?? 35.Rc7 Ke6 36.Re7 (36.Re7 Kf6 37.Rf1 Kg6 38.Rf8+–) 1–0. Suess,Stefan – Pezold, corr, 1986.

7.Be2 Re8 8.a3 A) 8...a6 A1) 9.Rb1 b5 10.Bf3 d5 11.Nge2 Qd6; A2) 9.Bf3 Nbd7 10.Nh3 Ne5 11.Nf4 c6; A3) 9.Nf3 b5 10.0–0 c5 11.d4 Nc6; B) 8...c6 B1) 9.Qb1 a5 10.Nf3 b5 11.0–0 Qe7; B2) 9.Nf3 Be6 10.Nd4 Qe7 11.Rb1 Bc8; C) 8...Nc6 C1) 9.Rb1 d5 10.Nf3 d4 11.Nb5 de3; C2) 9.d4 a6 10.Nf3 Qe7 11.0–0 b5; C3) 9.Nf3 a6 10.0–0 Qe7 11.d4 b5.

7.Be2 Re8 8.Rb1 A) 8...Nc6 A1) 9.d4 d5 10.Qd3 Qe7 11.Nf3 a5; A2) 9.Bb5 Bd7 10.Nf3 a6 11.Bc6 Bc6; A3) 9.Nf3 a6 10.d4 b5 11.0–0 b4; B) 8...c5 B1) 9.Bb5 Re7 10.Nf3 a6 11.Bd3 b5; B2) 9.Nf3 a6 10.d4 b5 11.dc5 Qa5; C) 8...Nbd7 C1) 9.Nh3 Qe7 10.Nf4 c6 11.0–0 Rb8; C2) 9.d4 Nb6 10.Nf3 c6 11.0–0 Qe7; C3) 9.Nf3 Qe7 10.0–0 c6 11.d4 Nb6.

7.Be2 Re8 8.Bf3 Nbd7 9.d4 c5 10.Nge2= cd4 11.Qd4 Ne5 12.Rd1 Nf3 13.gf3= Bf5 14.e4 Bg6 15.Qd6 Qa5 16.0–0 Rac8 17.Rd3 Red8 18.Qf4 h6 19.Rfd1 Rd3 20.Rd3 Qc5 21.Qe3 Qa5 22.f4 Re8 23.Ng3 Bh7 24.f5 a6 25.Qd4 h5 26.Nd5 Nd5 27.ed5 f6 28.d6 Rd8 29.Qe4+– Qe5? 30.Qb7 Qe1 31.Kg2 (31.Kg2 Qe8 32.d7+–) 1–0. Woelfelschneider,Peter – Reuter,Alfred, 07–004.021, 2001.

7.Be2 Re8 8.Nf3 A) 8...a6 A1) 9.d4 b5 10.0–0 c6 11.Qd2 a5; A2) 9.Rb1 c5 10.d4 Qa5 11.Qd2 b5; A3) 9.0–0 b5 10.d4 c6 11.Qd2 Qe7; B) 8...d5 B1) 9.0–0 Ne4 10.Rb1 c5 11.Ne4 de4; B2) 9.Rb1 c5 10.0–0 d4 11.ed4 cd4; B3) 9.d4 Ne4 10.Ne4 de4 11.Ne5 Qg5; C) 8...Nc6 C1) 9.0–0 Rb8 10.d4 a6 11.d5 Ne5; C2) 9.Rb1 a6 10.0–0 b5 11.d4 b4; C3) 9.d4 Bf5 10.0–0 Qd7 11.Rb1 Rab8.

7.Nf3 a6 8.a4 c5 9.Be2 Qa5 10.0–0 Nc6 11.Bc4 Nb4 12.h3 (12.e4 Bg4=) 12...d5+= 13.Bb3 (13.Bd3 Re8+=) 13...Bf5 14.d4? (better is 14.Nh4 Bd7 15.Nf3–/+) 14...c4–+ 15.Ba2 Nc2 0–1. zd3nik (1875) – vulpecula (2115), gameknot.com, 2014.

7.Nf3 Nc6 8.Rb1 a6 9.d4 Re8 10.Bd3 =.

5.Bc3 Bc5

6.Qf3 Nc6 7.Bb5+= Bd7 8.Bf6 gf6 9.d4 Bb6 10.Ne2 a6 11.Bc4 Qe7 12.Nbc3+/– Be6 13.Nd5+– Bd5 14.Bd5 Kd7 15.Qf5 Kd8 16.0–0 1–0. orane – BURNANDTURN, caissa.com, 2006.

6.Qf3 Nbd7 7.d4 Bb6 8.Bd3 =.

6.Nf3 c6 7.d4 Bb6 8.Bd3 d5 9.Bb4+= a5 10.Ba3 g6 11.Ne5 h5 12.c4 Rh7 13.Ng6 Rg7?? 14.Nf4 a4 15.0–0 Bc7 16.Nh5 Nh5 17.Qh5 Nd7?? 18.Qh8 Nf8 19.Qf8 Kd7 20.Bf5 1–0. coolerdude – kurt5561, ChessWorld.net, 2005.

5.Bc3 Nc6

6.a3 Bc5 7.d4 Bb6 8.Bd3 0–0 9.Ne2 Qe7 10.0–0 Bg4 11.Bd2 Rae8 12.f3 Nd5 13.fg4+/– Ne3 14.Be3 Qe3 15.Kh1 Nd4 16.Nbc3 Qg5? 17.Nd4+– Bd4 18.Bh7! Kh7 19.Qd4 a6 20.Nd5 c5 21.Qd3 Kg8 22.Rab1 Qg4 23.Rb7 Re2?! 24.Ne3 Qh5 25.Nf5 Qg4 26.Ng3 Re6 27.Qa6 Rh6 28.Nf5 Re6 29.Rf7! Rf7 30.Qc8 Kh7 31.Qe6 Rf6 32.Qd5 Kg6 33.Ne7 Kh7 34.Qg8 (34.Qg8 Kh6 35.Rf6 Kh5 36.Qh8 Kg5 37.Qg7 Kh4 38.Qh6 Qh5 39.Rf4#) 1–0. Coltharp – Livelo, email 4AMM–06, 1997.

6.Bb4 Nb4 7.a4 (7.a3 Nc6=) 7...Bf5 8.d3 0–0 9.c3 Nc6 10.Nf3 Re8 (10...b6 11.Be2=+) 11.h3 (11.Be2 Qe7=+) 11...Qd7 (Better is 11...Nd5=+) 12.e4? (12.Be2 Ne5=+) 12...Be6 (12...d5 13.Be2 de4 14.de4 Qd1 15.Bd1 Be4 16.0–0–+) 13.d4?? (Better is 13.Be2=+) 13...Ne4–+ 14.d5 (14.Qc1 Na5 15.Qf4–+) 14...Bd5!! 15.Qd5 (15.Be2 Bc4! 16.0–0 Be2 17.Qe2–+) 15...Nc3 (16.Be2 Nd5–+) 0–1. King Phillip – Wall,Bill, Internet, 2002.

6.Bb5 Bd7=.

5.Bf6 Qf6

6.c3 0–0 7.Nf3 (7.Qf3 Ba5+=) 7...Ba5 (7...Nc6 8.d4 Ba5 9.Bd3+=) 8.Be2+= Qg6 9.0–0 Bh3 (9...Nc6 10.Na3+=) 10.Ne1+= Bf5 11.Qb3 Bb6 12.d3 (12.d4 Nc6+=) 12...Nc6 13.Nd2 Be6 14.Qc2 Rae8 15.d4 (better is 15.Nef3+=) 15...Bf5 (better is 15...Qc2 16.Nc2 Ba5–/+) 16.Bd3+= Bd3 17.Qd3 (17.Nd3 d5+=) 17...Qh5 18.Nef3 Re6 19.Ne4 (19.e4!?=) 19...Qg6+= 20.Nfg5? (better is 20.Nfd2!? d5 21.Nc5+=) 20...Re7–+ 21.f4 d5 22.Nf2 (22.f5 de4 23.Ne4 Qh5–+) 22...Qd3 23.Nd3 Re3 24.Rf3 Rfe8 25.Ne5?? (better is 25.Re3 Re3 26.Rd1–+) 25...Rc3! (25...Ne5? 26.Re3 f6 27.Nh3+– (27.fe5?! fg5 28.a4 c5+–)) 26.Nc6 Rc6 27.Rd3 Rc2 0–1. ovid7 (1785) – yulio (1910), gameknot.com, 2014.

6.c3 Ba5 7.Qa4 Nc6 8.Bb5 0–0 9.Bc6 Bc3?! 10.Nc3 bc6 11.Qc6 Qg6 12.Qa8 Bh3 13.Nd5 Qe6 14.Qc6 Bg2 15.Ne7 Qe7 16.Qg2 c5 17.Ne2 Qf6 18.d4 cd4 19.Nd4 Re8 20.Qc6 Kf8 21.Rd1 a5 22.Nb5 g6 23.h4 Re6 24.Nc7 Re5 25.h5 Rh5 26.Qa8 Kg7 27.Ne8 Kh6 28.Rh5 gh5 29.Nf6 Kg6 30.Rd6 Kf5 31.Qe4 Kg5 32.Nh7# 1–0. pierre – Battousay_Retalhador, ChessHere.com, 2005.

6.c3 Ba5 7.Qa4 Nc6 8.Bb5 Bd7 9.Nf3 Bb6 10.d4 a6 11.d5 0–0 12.Bc6 bc6 13.0–0 Bf5 14.Qc6 Be4 15.Nbd2?! (15.a4!?) 15...Bd3 16.Rfc1 Bb5 17.Qa8 Ra8 18.c4 Bd7 19.Rab1 Bg4 20.h3 Bf3 21.Nf3 Re8 22.a3 Qh6 23.Rd1 f6 24.Nd4 Re3?? 25.Nf5 Qf4 26.Ne3 Be3 27.fe3 Qe3 28.Kf1 Qa3 29.Rb7 Qc5 30.Rc1 h6 31.Ke2 Kh7 32.g4 Kg6 33.Kd3 Qa3 34.Rc3 Qc5 35.Rcb3 a5 36.R3b5 Qa3 37.Rb3 Qc1 38.Rc7 a4 39.Rbb7 Kg5 40.Rg7 Kh4 41.Ra7 a3 42.Ra6 Qb1 43.Kd4 Qb2 44.Kd3 Kh3 45.Rga7 Kg4 46.Ra3 Kf4 47.R3a4 Qb3 48.Ke2 Qe3 49.Kf1 Kf5 50.R7a6 Qg3 51.Ke2 h5 52.Ra3 Qg2 53.Kd3 h4 54.Ra2 Qg3 55.Ke2 h3 56.R6a3 Qg2 57.Kd3 Qe4 58.Kc3 Qh4 59.Ra1 h2 60.Rf1 Ke5 61.Raa1 f5 62.Rae1 Kf6 63.Kd3 Kg5 64.Rh1 f4 65.Re2 Qh3 66.Kd2 f3 67.Reh2 Qd7 68.Rh7 Qa4 69.R1h5= Kg4 70.Rh4= Kg3 71.Rh3= Kg2 72.Rh2= Kg3 73.R7h3= Kg4 74.Rh4= Kg5 75.Rh5= Kf4 76.R2h4= Kg3 77.Rh3= Kg4 78.R5h4= Kf5 79.Ke3 Qb3= 80.Kf2 Qc2= 81.Kf3 Qd3= 82.Kf2 Qd2= 83.Kf3 Qd3= 84.Kf2 Qd2= 85.Kf3 Qd1?? 86.Ke3! Qe1 87.Kd3 Qb1 88.Kc3 Qc1 89.Kb4 Qd2 90.Kb5 Qb2 91.Kc6 Qb4 92.Rh5 Ke4 93.R3h4 Kd3 94.Rh6 Qc5 95.Kd7 Kc3 96.Rd6 Kb4 97.Rc6 Qf2 98.Rhh6 Qf5 99.Rhe6 Kc3 100.Ke7 Qg5 101.Rf6 Qd5 102.cd5 1–0. mtr – hydro, Internet, 2001.

6.c3 Be6 7.Qa4 Nc6 8.Bb5 Bd5? 9.Ne2+– Bg2 10.Rg1 Bf3 11.Qb4 0–0 12.Qf4 Qd8?? 13.Qf3 Ne5 14.Qg2 Qf6 15.f4 Ng6 16.Bc4 c6 17.Qg5 (17.Qg5 Qg5 18.Rg5+–) 1–0. mtr – killingjoke, Caissa's Web, 2001.

4.e3 Be7

5.c4 c5 6.Qc2 Nc6 7.Bb2 h6 8.Nf3 0–0 9.a3 b6 10.Be2 Bb7 11.Rg1 Nh7 12.g3 Ng5 13.Ng5 Bg5 14.h4 Bf6 15.Nc3 Ne5 16.f4 Nf3 17.Bf3 Bf3 18.e4 (18.Rf1 Bc6+=) 18...d6 (better is 18...Bd4 19.Rf1 Bg2–+) 19.d3 Qd7 20.f5 Bg4 (20...Rae8 21.Kf2 Bg4 22.Nd5=) 21.Nd5= Bb2 22.Qb2 Rae8 23.Qf2 (23.f6!? g6 24.a4=) 23...Qf5 (better is 23...Bf5!? 24.Ne3 Bg4–+) 24.Qf5+= Bf5 25.Kd2 Be6 26.Nc7 Re7 27.Ne6 fe6 28.Rgf1 Ref7 29.Rf7 Rf7 30.Ke3 g5 31.hg5 hg5 32.g4 Rf4 33.Rg1 e5 34.a4 Kg7 35.Ke2 Kf6 36.Rf1 Rf1 37.Kf1 Ke7 38.Ke2 Kd7 39.Kd2 Kc6 40.Kc3 a6 41.Kb3 b5 42.ab5 ab5 43.cb5 Kb5 44.Kc3 c4! 45.dc4 Kc5 46.Kd3 Kb4 47.c5 dc5 48.Kd2 Kc4 49.Ke3 Kc3 50.Ke2 Kd4 51.Kd2 Ke4 52.Kc3 Kf4 53.Kc4 e4 54.Kc5 e3 55.Kc6 e2 56.Kd5 e1Q 57.Kd6 Kg4 58.Kd5 Kf5 59.Kd6 Qe5 60.Kc6 g4 61.Kd7 g3 62.Kd8 Qg7 63.Kc8 g2 64.Kb8 g1Q 65.Kc8 Q1a7 (65...Q1a7 66.Kd8 Qad7; 65...Qc5 66.Kd8 Qge7) 0–1. Uguzel,Pinar – Keskin,Suara, TUR–ch (Women), 2008.

5.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 0–0 5.Nf3 Be7).

5.Nf3 c5 6.c4 Nc6 7.Bb2 0–0 8.Be2 d5 9.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.c4 0–0 5.e3 d5 6.Nf3 Be7 7.Be2 c5 8.0–0 Nc6 9.Bb2).

5.Nf3 Nc6

6.Bb2 0–0 7.Be2 b6 8.0–0 Bb7 9.c4 d5 10.d4 dc4 11.Bc4 Na5 12.Bd3 c5 13.Nbd2 cd4 14.Nd4 Nc6 15.N2f3 Nd4 16.Bd4 Rc8 17.Qe2 Bc5 18.Bc5 Rc5 19.Rfd1 Qc7 20.Nd4 Rd8 21.Rd2 Rc1 22.Rc1 Qc1 23.Qd1 Qd1 24.Rd1 Kf8 25.Bb5 Rd5 26.Bc4 Rg5 27.Bf1 ½–½. Loulou – cccmember, playchess.de, 2003.

6.Bb2 d6 7.Bb5 Bg4 8.h3 a6?? (better is 8...Bh5=) 9.Bc6+– bc6 10.hg4 Rb8 11.Bf6 Bf6 12.d4 c5 13.Qd3 cd4 14.ed4 0–0 (14...h6+–) 15.Qh7 1–0. b4_player – idyll, casual, 2013.

5.Nf3 d6

6.Bb2 Bg4 7.Be2 Nc6 8.0–0 h6 9.h3 Bd7 10.d4 d5 11.c4 0–0 12.cd5 Nd5 13.Nc3 Nc3 14.Bc3 b6 15.a4 Bd6 16.a5 Bb4 17.Bb4+= Nb4 18.ab6 cb6 19.Ne5 Nc6 20.Bf3+/– Qe8 21.Nd7+– Qd7 22.d5 Ne5= 23.Be2 Rfd8 24.e4 b5 25.f4 Ng6 26.Bg4 Qd6= 27.Rc1 Nf4 28.Qf3+/– Ng6 29.Qf7+– Kh8 30.Bf5 Kh7?? 31.Rc6+– Qg3 32.Bg6 Kh8+– 33.Qf4 Qf4 34.Rf4 b4 35.d6 b3 36.e5 Rac8 37.Rc7 Rc7 38.dc7 Rc8 39.e6 (39.e6 b2 40.Rd4 b1Q 41.Bb1 g5 42.Rd8 Kg7 43.Rc8 g4 44.Rg8 Kg8 45.c8Q Kg7 46.Qc3 Kg8 47.e7 Kf7 48.Qe5 Ke8 49.Bg6 Kd7 50.e8Q; 39.Rd4 Rf8 40.Rd8 Kg8 41.c8Q Rd8 42.Qd8) 1–0. gtate (1810) – aaliyah (1835), net–chess.com, 2002.

6.Bb2 Bg4 7.h3 Bh5 (7...Bf3 8.Qf3 Qc8 9.Qg3=) 8.Be2 (8.g4 Bg6 9.g5 Ne4=) 8...Nbd7 9.0–0 (9.g4 Bg6 10.g5 Ne4 11.Bg7 Rg8=) 9...c6 10.Nc3 (10.c4 Qb6 11.Bd4 Qa5=) 10...Qc7 (10...Bf3 11.Bf3 d5 12.e4 de4 13.Be4=) 11.Nd4 Bg6 12.f4 h6 13.f5 (13.Bd3 Bd3 14.cd3 Nc5=) 13...Bh7+= 14.Nb3 d5 15.d4 (15.Qe1 a6+=) 15...Bd6 (15...0–0 16.Bd3+=) 16.Bd3 (16.a4 Qd8–/+) 16...0–0–0 (16...0–0 17.Ne2+=) 17.e4 (17.Ne2 Rde8 18.Qc1 a5=) 17...de4+= 18.Ne4 Bh2 19.Kh1 Ne4 20.Be4 Nb6 (20...Nf6 21.Bf3=) 21.Qf3 (21.Qg4 f6+=) 21...Rhe8 22.Bd3 Nd5 23.Bc1 Re7?? (23...Qg3 24.c4 Nb4 25.Be4=) 24.c4?? (better is 24.f6 Nf6 25.Bh7 Nh7 26.Qf5 Re6 27.Nc5+–) 24...Nf6= 25.Ba3 (25.Rb1 Qg3=) 25...Red7 26.Rab1 Bd6 27.c5 Be5 28.Qe2?? Bd4–/+ 29.Nd4 Rd4 30.Rb7?? Kb7–+ 31.Ba6 Ka8 32.Qf3 Nd5 33.Bc1 Qa5 34.Be3 Qa6 35.Bd4 f6 36.Re1 Bg8 37.Qg3 Qb7 38.a3 Qd7 39.Bg1 Bh7 40.Re6 Rc8 41.Qf3 Re8 42.Re8 Qe8 43.Qg3 Qe7 44.Bh2 Kb7 45.Qb3–/+ Nb6 46.cb6 ab6 47.Bg1 Qc7 48.Qb1 Bg8 49.a4 Bd5 50.Qb4? Ka6 51.Bh2? Qd7–+ 52.Qb1 b5?? 53.ab5 cb5 54.Bg1 Qc6 55.Qa1 Kb7 56.Qa7 Kc8 57.Qg7 b4 58.Qf8 Kd7 59.Qb4 Bg2 60.Kh2 Bd5 ½–½. Nemeth,Laszlo (2005) – Farkas,Jozsef (1830), HUN–chT2 Erkel, 2003.

4.e4 0–0

5.a3 Ba5 6.Bc3 (6.Qf3 Re8 7.Bf6 Qf6 8.Qf6 Re4 9.Ne2 (9.Kd1 gf6 10.Nf3 d5+=) 9...gf6+= 10.Kd1 Re7+=) 6...c6 (6...Bc3 7.Nc3 Re8 8.d3 (8.f3–/+ d5 9.Bd3 c5 10.Bb5 Re7–/+) 8...d5 9.Nf3 Nc6 10.Be2 Bg4–/+) 7.Bf6 (7.Qf3!? Bc3 (7...Re8 8.Bf6 Qf6 9.Qf6 Re4 10.Ne2 gf6+=) 8.Nc3–/+ Re8 9.Nge2 d5 10.ed5 cd5–/+; 7.Ba5 Qa5 8.Bd3 Re8 9.Ne2 Ne4 10.Be4 Re4–/+; 7.Bd3 Re8 8.Ba5 Qa5 9.Qe2 d5 10.f3 c5–/+) 7...Qf6–/+ 8.c3 d5 (8...Re8 9.Qc2 d5 10.d3 de4–/+) 9.ed5 cd5 (9...Re8 10.Be2–/+ Qg5–/+) 10.Ne2 (10.Nf3!?–/+ Re8–/+; 10.Bd3 Bb6–/+) 10...Re8–+ 11.f3 Nc6 12.Kf2 (12.Qa4 a6–+) 12...d4 13.g3 Bb6 14.Kg2 Bh3!! 15.Kh3 Qf3 16.d3 (16.Nf4 Qd1 17.Bg2 Qc2–+) 16...Re5 17.Nf4 Qd1 18.c4 Rg5 19.Kg2 Qg4 (better is 19...Qc2 20.Be2 Bc7 21.Kf2–+) 20.Kf2 Rf5 21.Be2 (21.Ra2 g5 22.Be2 Qh3–+ (22...gf4?! 23.Bg4 fg3 24.Kg3–+)) 21...Rf4 22.gf4 Qf4 23.Ke1 Re8 (23...Qc1 24.Kf2 Qh1 25.Bf3 Qh2 26.Bg2 Qf4 27.Ke2 Re8 28.Kd1 Qg4 29.Kc2 Qg2 30.Nd2–+) 24.Ra2 Qc1 (24...Qc1 25.Kf2 Qh1–+) 0–1. Granzeuer – Krueger,Erich, corr SOK–87–10, 1987.

5.a3 d6 6.Bb2 (6.ab4 de5 7.Nc3 Qd6–/+) 6...Bc5 7.d4 Bb6 8.Bd3 Qe7 (8...Ne4 9.Nf3–/+) 9.Nd2 (9.Nf3 Nc6 10.Nbd2 Ne4 A) 11.Be4? f5 12.Ne5 Nd4 (12...Ne5?! 13.Bd5 Nf7 14.Qe2–+; 12...de5?! 13.Bd5 Be6 14.Bc6 bc6 15.de5–/+) 13.Bd5 Kh8–+; B) worse is 11.Ne4 d5 12.0–0 de4–/+; C) 11.0–0 Nd2 12.Qd2+=) 9...Nc6 (9...Ne4 10.Ne2 (10.Be4? f5–+) 10...Nf6 11.0–0+=) 10.Ngf3 (10.Ne2 Bg4 11.f3 Bh5=) 10...Bg4–/+ 11.c3 Rfe8 (11...Ne4!? 12.0–0 d5–/+) 12.0–0= Nh5 13.Qb3 (better is 13.g3!?=) 13...Nf4–/+ 14.Bc2 Qf6 15.a4 Qg6 16.e5? (16.g3 Qh5+=) 16...Qh6 (16...Bf5!? 17.Nh4 Ne2 18.Kh1 Bc2 19.Ng6 Bb3 20.Nb3 hg6 21.a5 de5 22.ab6 ed4 23.Nd4 Ned4 24.cd4 ab6 25.g3–+) 17.h4 (17.a5!? Na5 18.Qb5–+) 17...de5 (better is 17...Ne2 18.Kh1 de5–+) 18.Ng5?? (better is 18.Rfe1–+) 18...Be6 (better is 18...Ne2 19.Kh2 Qh4 20.Nh3 Bh3 21.gh3 Qf4 22.Kh1 Qd2–+) 19.Bh7 Kh8 (better is 19...Qh7 20.Nh7 Bb3 21.Nb3 Kh7 22.a5 ed4 23.ab6 Ne2 24.Kh2 dc3 25.Bc3 Nc3 26.bc7–+) 20.Qe6 fe6 21.Nf7 Kh7 22.Nh6 gh6 23.Ne4 Rf8 24.de5 Ne5 25.a5 Bf2! 26.Rf2 Nfd3 27.Rf8 Rf8 28.Ba3 Rf4–+ 29.Nc5 Nc5 30.Bc5–/+ b6 31.ab6 ab6 32.Be3 Rc4 33.Bd4? Nc6 34.Bh8?? Kh8–+ 35.Ra8 Kg7 36.Rc8 Ne5 37.Re8 Kf7 38.Rh8 Ng4 39.Rh7 Kf6 40.Rh8 Rc3 (40...Rc3 41.Kf1 Kf5–+) 0–1. Monteiro,Antonio – Gomes,Emanuel, I Tara de Cabo Verde–Preliminar, 2009.

5.c3 Bc5 6.Nf3 Nc6 7.Bb5? Re8 8.Bc6= dc6 9.0–0 Bd6 10.Bf6 Qf6=+ 11.h3? Re4–+ 12.d3 Re7 13.Nbd2 Bf5 14.d4 Rae8 15.Qb3 b6 16.Rfe1 Bf4 17.Re7 Re7 18.Qa3 Bd2 19.Nd2 Re2 20.Nf3 a5–/+ 21.Re1 Re1 22.Ne1 h6 23.Nf3 Be4 24.Qc1? Bf3–+ 25.gf3 Qf3 26.Qe3 Qe3 27.fe3 Kf8 28.Kf2 Ke7 29.Kf3 Ke6 30.Kf4 Kd5 31.a4 g6 32.Kf3 f6 33.Ke2 Ke4 34.c4 b5! (34...b5 35.cb5 cb5 36.ab5 f5–+) 0–1. gtate (1715) – johnstar, net–chess.com, 2002.

5.Nc3 Bc3!? 6.Bc3 Ne4 –+.

5.Nc3 d6 6.Bf6=+ Qf6 7.Nd5 Qe5 8.Nc7 Bd2 9.Qd2 Qa1–+ 10.Ke2 b6 11.Qd5? Ba6 12.c4 Nd7 13.Na8 Ne5 14.Qd1 Bc4 15.Ke1 Qc3 16.Qd2 Qd2 17.Kd2 Bf1 18.Ne2 Bg2 19.Rg1 Nf3 (19...Nf3 20.Kd3 Ng1 21.Ng1 Ra8–+; 19...Ra8?! 20.Rg2 f5 21.ef5 Nf3 22.Ke3–+) 0–1. Duinmaijer – De Visser,Arno, 1978.

5.Nf3 (--> 4.Nf3 0–0 5.e4).

5.a3 Re8

6.ab4 Re5 7.d3 Re8 8.Nc3 d5 9.f3 d4 10.Nce2 Qd6 11.Qb1 Qb6 12.f4 Bg4 13.h3 Be2 14.Ne2 a6 15.b5 Nbd7 16.Qb2 c5 17.c4 dc3 18.Nc3 Nh5 19.g3 Ng3 20.Rg1 Nh5 21.Rg5 Qh6 22.Qd2 ab5 23.Ra8 Ra8 24.Nb5 Ra1 25.Ke2 Nf8 26.f5 f6 27.Rg1 Nf4 28.Kf3 Nh3 29.Rg7 Qg7 30.Bh3 Nd7 31.d4 cd4 32.Bg2 Ne5 0–1. Comet B50 – Fritz 6, 2003.

6.ab4 Re5 7.d3 Re8 8.c4 d5 9.f3 Qe7 10.b5 d4 –/+.

6.ab4 Re5 7.d3 Re8 8.Ne2 d5 9.ed5 Nd5 10.Qd2 Nc6 11.c3 Ne5 12.Kd1 Bg4 13.d4 Nc4 14.Qa2 Re2 15.Be2 Nc3 16.Nc3 Qd4 17.Kc2 Bf5 18.Kb3 Nd2 19.Qd2 Qd2 20.Ra2 Qg5 21.Bc4 c6 22.h4 Qg2 23.Re1 b5 24.Bf1 Qg4 0–1. Fritz 5.32 – Fritz 6, 2003.

6.ab4 Re5 7.d3 Re8 8.Ne2 d5 9.f3 b6 10.Nbc3 d4 11.Na4 a6 12.Nb2 Nc6 13.Qd2 b5 14.f4 Qe7 15.h3 Qb4 16.Qb4 Nb4 17.Kd2 c5 18.g4 Bb7 19.Rg1 a5 20.g5 Nd7 21.h4 a4 22.Bh3 Nb6 23.Nd1 a3 24.Nf2 Nc6 25.h5 b4 26.g6 fg6 27.hg6 h6 28.Bg2 Na4 29.e5 Nc3 30.Nc3 dc3 31.Kd1 Ra5 32.Ne4 Nd4 33.Nd6 Bg2 34.Rg2 Rf8 35.Rf2 b3 36.cb3 c2 37.Rc2 Rf4 38.Raa2 Rf1 39.Kd2 Rf2 40.Kd1 Rc2 41.Ra1 Rh2 0–1. Comet B50 – Fritz 5.32, 2003.

6.f4 Ba5 7.Qf3 d6 8.Bf6 Qf6 9.c3 Bf5 10.Bd3 Be4 –+.

6.f4 d6 7.ab4 de5 8.fe5 Ne4 9.Nf3–+ Bg4 10.Ra3 Nc6 –+.

6.f4 d6 7.ab4 de5 8.fe5 Ne4 9.Nf3 Bg4 10.Ra3 Re5 11.Be2 Bf3 12.Rf3 a5 13.ba5 Rea5 14.Re3 Nd6 15.0–0 Nc6 16.Nc3 Qh4 17.Re1 Qd4 18.Kh1 Ne5 19.Bf3 Nf3 20.Rf3 Nf5 21.Rd3 Qc4 22.Qf3 Ra1 23.Rd8 Rd8 24.Ra1 Nd4 25.Qe4 h6 26.Qh4 Re8 27.Nb5 Qb5 28.Qd4 Re2 29.h3 Kh7 30.c3 Qf5 31.Qc4 Qf2 32.Rg1 Rd2 33.Qc7 b6 34.Qb7 Re2 35.Rb1 Rc2 36.Qc6 b5 37.Qe4 f5 38.Qd5 Rd2 39.Qb7 Qe2 40.Qf3 Qf3 41.gf3 Rd5 42.h4 Kg6 43.Rb4 Kf6 44.Kg2 Rc5 45.Kg3 g5 46.hg5 hg5 47.Kf2 Rc3 48.Rb5 g4 49.fg4 fg4 50.Kg2 Kg6 51.Re5 Rf3 52.Re8 Rd3 53.Rg8 Kf5 54.Rf8 Ke4 55.Re8 Kf4 56.Rf8 Ke5 57.Re8 Kf6 58.Rf8 Ke7 59.Rf4 ½–½. Fritz 6 – Fritz 5.32, 2003.

5.c3 Ba5

6.Qc2 d6 7.Bf6 Qf6 8.h3 Bb6 9.Nf3 Re8 10.d3 Nc6 11.Be2 h6 12.0–0=+ Ne5 13.Ne5 de5 14.Bg4 c6 15.Bc8=+ Rac8 16.Nd2 Rcd8 17.Nf3 c5 18.Qe2 Rd6 19.c4 Ba5 20.a4 b6 21.g3 Qe6 22.Kg2 Qd7 23.Rfd1 f6 24.Nh4 Rd8 25.Ra3 Bb4 26.Rb3 Qa4 27.Rb2 Qd7 28.Nf5 Rd3 29.Rd3 Qd3 30.Qg4 Rd7 31.Nh6 Kh7 32.Nf5 Qd1 33.Re2 Kg8 34.Qg6 Kf8 35.Qh5 Kg8 36.Qg6 Kf8 37.Re3 Qd2?? 38.Qh7+– (38.Qh7 Qc1 39.Qh8 Kf7 40.Qg7 Ke6 41.Qg8 Rf7 42.Qe8 Re7 43.Qe7#) 1–0. Granzeuer – Woschkat,Karl_Heinz, corr SOK–87–10, 1988.

6.Bd3 Bb6 7.Nf3 d6=+ 8.Bf6 Qf6 9.0–0 Bg4 10.h3 Bf3 11.Qf3 Qf3 12.gf3 Nd7 13.Be2 Ne5 14.a4 Ng6 15.a5+= Bc5 16.d4+/– Nf4 17.Re1 Bd4 18.cd4 Nh3 19.Kg2 Nf4 20.Kg3 Ne6 21.d5 Nd4 22.Na3 f5 23.Rac1 f4 24.Kg4+– c5 25.dc6! bc6 26.Rcd1 c5 27.Nb5 Rad8? 28.Nd4 Rf6 29.Nf5 g6 30.Bc4 Kf8 31.Kg5 Rf5 32.ef5 gf5 33.Rd5 Rd7 34.Kh6 Re7 35.Rf5 Ke8 36.Bb5 (36.Bb5 Kd8 37.Rf8 Re8 38.Rfe8 Kc7 39.R1e7#) 1–0. pierre – opponent, internet, 2008.

6.Bd3 Re8 7.Bf6 Qf6 8.Nf3 –/+.

6.Qf3 Re8 7.Bf6 Qf6 8.Qf6 Re4 9.Kd1 gf6 =+.

5.c3 d6

6.Bf6 Qf6 7.d4 Ba5=+ 8.Qh5 Nc6 9.Nf3 Qf4 10.Nfd2 Nd4! 11.cd4 Qe4 12.Be2 Qd4 13.Qa5 Qa1 14.Qc7 Qa2 15.Qd6 a5 16.Nc3 Qa1 17.Ndb1 Re8 18.0–0 Bf5 19.Bf3 Re6 20.Qg3 Rb6 21.Qc7+= Rb1? 22.Nb1+– Bd3?? 23.Qb7 Re8?? 24.Rd1 Qa2?? 25.Nc3 Qd2 26.Qf7?? Kf7–+ 27.Bh5 g6 28.Bg6 hg6 29.h4 Qc3 30.g3 Re1 31.Re1 0–1. Fritz 5.32 – Doctor? 3.0, 2004.

6.Bf6 Qf6 7.Nf3 Re8 8.e5 Nd7 9.Bb5 c6–+ 10.Bc6 bc6 11.d4 de5 12.cb4 ed4 13.Kf1 Ba6 14.b5 Bb5 15.Kg1 Be2 16.Qc1 0–1. Comet B50 – Crafty 19.01, 2004.

5.c3 Re8

6.d4 Bd6 7.Bd6 cd6 8.Bd3 Ne4 9.Ne2 d5 10.0–0 d6 11.Re1 Qh4 12.Ng3 Re6 13.Ne4= de4 14.g3 Qg5 15.Re4 Re4 16.Be4 Nd7 17.Qd2 Qh5 18.Qf4 Qd1 19.Kg2 Qe1 20.c4 Nf6 21.Bf3 Bd7 22.a4 Re8 23.Qd2 Qe6 24.Nc3 Qc4 25.Bb7 Qe6 26.Kg1 d5 27.a5 Bc6 28.a6 Qd7 29.Rb1 h6 30.Qf4 Nh7 31.Kg2 Nf6 32.Rb2 Ne4 33.Bc6+/– Qc6 34.Rb7 Qe6 35.Ne4 de4 36.Ra7 Qa2 37.Qe3 Qd5 38.Rc7 Qd6 39.Qf4+– Qd5 40.a7 e3 41.Qf3 Qf3 42.Kf3 e2 43.Rc1 Ra8 44.Ke2 Ra7 45.Rc8 Kh7 46.Kd3 Kg6 47.d5 Kf6 48.f4 Ke7 49.Kd4 Kd7 50.Rg8 Kd6 51.Rg7 Ra4 52.Kc3 Ra3 53.Kb4 Ra2 54.Rf7 Rh2 55.Rf5 Rg2 56.Kc4 Rg3 57.Rf6 Kd7 58.Rh6 Rf3 59.Rf6 Ke7 60.Re6 Kd7 61.Re4 Rh3 62.Kd4 Rh2 63.f5 Rf2 64.Ke5 Ke7 65.d6 Kd7 66.f6 Rf1 67.Rd4 Rf2 68.Rb4 Re2 69.Kf5 Kd6 70.Rd4 Kc5 71.Re4 Rf2 72.Ke6 Rf1 73.f7 Rf7 74.Kf7 Kd5 75.Ra4 Ke5 76.Ra5 Kd4 77.Ke7 Kc3 78.Kd6 Kd4 79.Re5 Kc4 80.Rd5 Kb4 81.Rc5 (81.Rc5 Kb3 82.Kd5 Kb2 83.Kc4 Kc2 84.Rd5 Kb2 85.Rd2 Kc1 86.Kc3 Kb1 87.Rd1 Ka2 88.Rc1 Ka3 89.Ra1#; 81.Rd4 Kb3 82.Kc5 Kc3 83.Rd6 Kb3 84.Rd3 Kb2 85.Kb4 Kc2 86.Kc4 Kb2 87.Rd2 Kc1 88.Kc3 Kb1 89.Rd1 Ka2 90.Rc1 Ka3 91.Ra1#) 1–0. bambinik – Floettzecher, internet, 2002.

6.d4 Bd6 7.Bd6 Re4 8.Ne2 cd6 9.Nd2 –/+.

6.Nf3 Ne4 7.cb4 d6 8.Bd3 (8.Qe2!? Ng5 9.Ng5 Qg5 10.f4–/+) 8...Nf6–+ 0–1. Pachurka,Roland – Bach,Stephan, Meisterschaft, 2003.

5.Qf3 Re8

6.Bf6 Qf6 7.Qf6 Re4 8.Kd1 gf6 9.Ne2 Nc6 10.Nbc3 Re5 11.f4 Ra5 12.a4 Rf5 13.g4 =.

6.Bf6 Qf6 7.Qf6 Re4 8.Kd1 gf6 9.Ne2 Nc6 10.Nbc3 Re5 11.f4 Rf5 12.Ne4 Ba3 13.g4 Ra5 14.Nf6 Kh8 15.Rb1 Be7 16.Ne8 Bd8 17.Nc3 d5 18.Bh3 h5 19.Nb5 hg4 20.Nbc7 Rb8 21.Bg2 Bd7 22.h3 g3 23.Re1 Nd4 24.Bd5 =.

6.Bf6 Qf6 7.Qf6 Re4 8.Kd1 gf6 9.Ne2 Re8 10.c4 d6 11.Nbc3 c6 12.a3 Ba5 13.d4 Nd7 14.Kc2 Rb8 15.Rb1 d5 16.cd5 Nb6 17.Nf4 Bf5 18.Bd3 Bd3 19.Kd3 Bc3 20.Kc3 Re4 21.g3 +=.

6.Bf6 Qf6 7.Qf6 Re4 8.Kd1 gf6 9.Ne2 Re8 10.c4 d6 11.Nbc3 Be6 12.Rb1 a5 13.a3 =.

4.e4 Nc6

5.Bb2 Ne4 6.Bg7 Bd2 7.Nd2 Nd2 8.Qe2 Qe7 9.Bh8 Qe2 10.Be2 Ne4 11.f3 Nd6 12.Bf6 Nb4 13.0–0–0 Na2 14.Kb1 Nb4 15.Re1 Nb5 16.Bb5 (16…Kf8 17.Be7 Kg7 18.Bb4+–) 1–0. Dingbat (2025) – Lotharnolla, ICS game chess.net, 1998.

5.Bc3 Bc3 6.Nc3 Qe7 7.Qe2 0–0 8.Nd5 Nd5 9.ed5 Re8 10.Kd1 Nb4 11.c4 d6 12.Qe7=+ Re7 13.a3 Na6 14.d4 Bf5 15.Nf3 Rae8 16.Kd2 Be4 17.Bd3 c6 18.dc6 Bd3 19.Kd3+= bc6 20.Rab1 c5 21.Rhe1 Re1 ½–½. Granzeuer – Gross,Wilhelm, corr SOK–88–23, 1988.

5.f4 d5 6.c3 Bg4?? 7.Qb3?? Ne5 8.fe5+/– Bc5? 9.ef6+– Qf6 10.d4 0–0–0 11.Nd2 Bb6 12.e5 Qf4 13.Ne2 Qe3 14.0–0–0 Qh6 15.Kb1 Rhe8 16.Nf3 Qe6 17.Ka1 f6 18.h3 Bf3+= (18...Bf3 19.gf3 fe5+=). Roever – Granzeuer, corr SOK–87–10, 1987.

5.f4 Ne4 6.Qe2 d5 7.Bg7–/+ Rg8 8.Bb2 Qh4 9.Kd1 Qf4 10.Nf3 –+.

5.Bb2 0–0

6.a3 Ba5 7.e5 Re8 8.Nf3 d6 9.Bb5 a6?? 10.Bc6 bc6 11.0–0 de5 12.Be5 Bg4 13.Re1 Bb6 14.Nc3=+ Nd5 15.h3 Bh5 16.Na4 Re6 17.Nb6 cb6 18.c4 Nf6= 19.d4 b5 20.g4 Bg6 21.Qb3 bc4 22.Qc4 Qd5 23.Nd2 Rae8 24.f4 Bc2?? 25.Qc2+– h5 26.g5 Nd7 27.Ne4 Re5 28.de5 Qd4 29.Kg2 1–0. orane – ekremak, caissa, 2008.

6.a3 Bd6 7.d3 Re8 8.Be2 Be5 (8...Bf4 9.g3 Bh6 10.f4=+) 9.d4 =.

6.Bd3 d5 7.Ne2 de4 8.Bf6 Qf6 9.Be4 Qa1 10.Bc6 bc6 11.Nbc3 Bc3 12.Nc3 Qd1 13.Kd1 Rb8 14.Re1 Be6 15.Ke2 Rfe8 16.Kd1 Bd5 17.Re8 Re8 18.Nd5 cd5 19.f4 Re4 20.f5 Ra4 21.Kc1 Ra2 22.d3 Ra4 23.g3 a5 24.h3 c5 25.Kd2 Ra1 26.Kc3 a4 27.Kb2 Rh1 28.h4 0–1. Dingbat (2155) – Robin (1995), ICS rated blitz match, 1998.

6.Bd3 Re8 7.Nf3 Ne4 (7...Re4?! 8.Be4 Ne4 9.a3=) 8.0–0 d5 9.a3 (9.Nc3 Bf5–+) 9...Bc5 10.c4 (10.Nc3–+) 10...Bg4 11.h3 Bh5 12.g4? (12.cd5 Qd5 13.Be4 Qe4 14.Nc3–+) 12...Qd6 13.Be4 Qg3 (13...Re4 14.d4 Bg4 15.dc5–+) 14.Kh1 Qh3 15.Nh2 de4 (worse is 15...Re4 16.f4 Bg6 17.Nc3–+) 16.gh5 (16.f4 ef3! 17.Qf3 Qf3 18.Nf3 Bg4–+) 16...Bd6 17.f4 ef3 18.Rf2 Bh2 19.Rh2 Qg3 20.Nc3 f2 21.Qf1 Re1 (21...Re1 22.Rf2 Qh4 23.Kg1 Rf1 24.Raf1 Qc4–+) 0–1. Neumann,Frank (1650) – Pirs,Matjaz (2470), RSS5E NoEngine–27, 2007.

6.Qe2? Ne4! 7.Qd3 Re8 8.Be2 d5 9.Nc3 Bc3 10.Bc3 Bf5 11.Nf3 Nc3 12.Qf5 Ne2 13.Kd1 Ncd4 14.Nd4 Nd4 15.Qd3 Qf6 16.f3 Nc2! 17.Qc2 Qa1 18.Qc1 Qc1 19.Kc1 Re2 0–1. guest1404 – guest1037, ICS blitz, 2000.

6.e5 Re8 7.Be2 Ne5 8.Nf3? (8.Be5 Re5 9.c3–+) 8...Nf3 9.gf3 d5 10.a3 Bd6 11.0–0 (11.Nc3–+) 11...Nh5 12.Nc3 Qg5 13.Kh1 Qf4 (13...Qf4 14.Nd5 Qh2#) 0–1. Neumann,Frank (1650) – Coche,Wilhelm (2470), RSS7E–84 remoteschach.de, 2008.

6.f3 Re8 7.Ne2 d5 8.c3 Ba5 9.d3 de4 10.fe4 Ne5 11.Ng3 Bg4 12.Qc2 Qd4 13.Qd2 Qd7 14.d4 Ng6 (14...Nc6 15.Bd3 Nd4 16.0–0–+) 15.e5? (15.Bd3 c5! 16.h3 Bf5–/+) 15...Nh5 (better is 15...Ne5!? 16.Kf2 Bb6–+) 16.Nh5 Bh5 17.Be2? (better is 17.h3 Qd5 18.Kf2 Ne5 19.Bc1–+) 17...Be2–+ 18.Ke2 f6 (better is 18...Ne5!? 19.de5 Qg4 20.Kd3–+) 19.Re1 fe5 20.Kf1 ed4 21.Re8 Re8 22.Na3 Qf5 23.Kg1 dc3 24.Bc3 Qc5 25.Qd4 Qc3 26.Qc3 Bc3 27.Rb1 Bd4 28.Kh1 Bb6 29.g3 Re2 30.Nc4 Ra2 31.Ne3 Be3 32.Rb7 Bb6 33.Rb8 Nf8 34.Re8 a5 35.Re4 a4 36.g4 a3 37.Ra4 Ne6 38.h4 Nc5 39.Ra8 Kf7 40.g5 g6 41.Rh8 Kg7 42.Ra8 Nb3 43.h5 gh5 0–1. karoo54 (1625) – liliann1960, kurnik, 2012.

6.Qf3 Ne4!–+ 7.a3 Re8 8.Be2 –+.

5.Bb2 Qe7

6.Qe2 Ne4 7.Bg7 Rg8 8.Bb2 Bc5 9.Nh3 d5 –+.

6.f3 d5 7.a3 de4 8.Qe2 Bc5 9.Bf6 Qf6 10.Qe4 Kf8 11.Nc3 Bf5 12.Qc4 Qe5 13.Kd1 Nd4 –/+.

6.f3 d5–/+ 7.c3 Bd6 8.d3–/+ 0–0 9.Ne2 Re8 10.Nc1 Bf5 11.Be2 Bg6 12.0–0 Rad8 13.Qb3 de4 14.de4 Ne5 15.Nd2?? c6 16.Rd1–/+ Bc5 17.Kh1 Be3 18.Nf1 Rd1–/+ 19.Bd1 Bh6 20.Ng3 Bf4 21.Nce2=+ Bh6 22.Bc2 Rd8 23.c4= Qe6 24.f4+/– Nc4 25.f5 Bf5 26.ef5 Qd5 27.Rd1 Qa5? 28.Rd8 Qd8 29.Qc4 Nd5 30.Qd3 c5 31.Bb3 c4 32.Bc4 Qb6 33.Qd5 Qc7 34.Be5 Qe7 35.Nh5 a6 36.Neg3 b5 37.Bb3 Be3 38.Ng7 h6 39.N3h5 Ba7 40.Nf6 Kg7 41.Nd7 Kh7 42.Qa8 Qe5 43.Ne5 Kg7 44.Qa7 Kf6 45.Nf3 Kf5 46.Qf7 Ke4 47.Qd5 Ke3 48.Qd4 Ke2 49.Qd2 Kf1 50.Qe1# 1–0. NN – KnightStalker 80286, 1993.

6.Bf6 Qe4 7.Qe2 –/+.

5.Bf6 Qf6

6.c3 Ba5 7.Qf3 Qe5 (7...Qe7 8.Qe3 0–0 9.Nf3–/+) 8.Bc4 (8.Qe3 0–0 9.Nf3 Qe6–/+) 8...Qe7 (8...0–0 9.Ne2 Qd6 10.Qg3–/+) 9.Qe3 (9.Qe2 0–0 10.Nf3 d6=+) 9...Ne5 10.Be2 d6 (10...0–0 11.d4 Ng6 12.Nf3–/+) 11.d4=+ Ng4 (11...Nc6=+) 12.Qf4 (12.Bg4 Bg4 13.Nd2 0–0=+) 12...f5 (12...Nf6!? 13.Qg5 Bb6–/+) 13.Bg4=+ fg4 14.Ne2 Be6 (14...Rf8 15.Qe3=) 15.Nd2= 0–0–0 (15...g5 16.Qe3=) 16.Rb1 (16.0–0 Rhf8 17.Qe3 Rde8=) 16...Bb6 (16...Rhf8 17.Qe3=) 17.a4 Rhf8 (17...Rdf8 18.Qe3=) 18.Qe3 Ba2?? (better is 18...Kb8=+) 19.Ra1 +–.

6.c3 Ba5 7.Nf3 0–0 8.Bd3 d6 9.h3 Qg6 10.g3 d5 11.Qe2 Re8 12.e5 Qh5 13.Kd1 Bg4! 14.hg4 Qh1 15.Kc2 Bb4 16.Qe3? Ba3! 17.Bb5 Qc1 18.Kb3 Qb2 19.Ka4 Be7 20.c4 Qb4 0–1. Borup,John – Meier,Tobias, 04. VCC–Open, 2001.

6.c3 Be7 7.d4 d6 8.Qf3 Qg5 9.Nd2 Bg4 10.Qg3 =+.

6.c3 Be7 7.d4 Qf4 8.Bd3 =+.

6.c3 0–0

7.Qb3 Ba5 8.g3 b6 9.f3 d6 10.Kf2 Be6 11.Bc4 Bc3 12.Qc3–/+ Qc3 13.Nc3 Bc4 14.Ke3 Rae8 15.d4 f5–+ 16.Nge2 fe4 17.fe4 ½–½. Granzeuer – Maurer, corr SOK–88–23, 1988.

7.Qb3 Bc5 8.Nf3 Re8 9.d3 d6 10.Be2 Qg6 –/+.

7.Bc4 Re8 8.Bd5 Bc5 9.Qf3 Qg6 10.Qg3 Qh5 =+.

7.d4 Qd4 8.Qd4 Nd4 9.Kd2 Ba5 10.Na3 Rd8 –/+.

7.Ne2 d6 8.a3 Ba5 9.d4 Re8 10.Nd2 d5 11.e5 Ne5 12.de5 Qe5 13.Rc1 Bc3–/+ 14.Rc3? Qc3–+ 15.Qb3 Qc1 16.Qd1 Qa3 17.Qb3 Qc5 18.g3 a5 19.Qb2 a4 20.f3 Qe3 (20...Qe3 21.h3 d4–+) 0–1. Nittschalk,Karl – Schulz,Hans_Juergen, TT–18.18 ETC, 2005.

7.Qf3 Be7=+ 8.Bb5 Qg5 9.Be2 Qc5 10.Qd3 Bf6 –/+.

4.Bf6 Qf6

5.c3 0–0

6.a3 Be7–/+ 7.e3 d5 8.Qf3 Qd6 9.Bd3 Nd7 10.Qh3 Nf6 11.Qg3 Qg3 12.hg3 Be6 13.Nh3 h6 14.Nf4=+ Bd7 15.f3 Rfe8–/+ 16.Be2 Bd6 17.Kf2 c6 18.Nh5 Nh5 19.Rh5 Re7 20.a4 Rae8 21.Na3 a6 22.Nc2 Bc8 23.Bd3 Be5 24.g4 Bf6 (24...b6 25.Nb4 c5 26.Nd5=) ½–½. Gross,Siegfried – Mrkvicka,Josef, CiF FT–92–018B, 1992.

6.Qb3 a5 7.d4=+ Be7 8.Nf3 b6 9.e4 d6 10.Bd3 Be6 11.Qc2 h6 12.Nbd2 c6 13.e5 de5 14.de5 Qf4 15.g3 Qg4=+ 16.h3 Qh5 17.0–0–0 f5 18.g4 Qf7 19.Kb1 Na6 20.Nd4 fg4+– 21.Ne6 Nc5?? 22.Nc5+– Bc5 23.Bc4 Rab8 (23...Rae8 24.Bf7 Rf7 25.hg4 Re5 26.Ne4+–) 1–0. Sticker,Otto – Buchner,Matthias, Alpenpokal op, 1994.

6.Qb3 Bc5 7.a3?? Qf2–+ 8.Kd1 Qf1 9.Kc2 Qg2 10.Nf3 Qh1 11.Qa2 d6 12.Ng5 Bf5 13.d3 Qh2 14.Kd2 Qf4 15.Kc2 Qg5 16.Qd5 Nc6 17.Nd2 Rae8 18.e4 Qg2 19.Qf5 Be3 20.Rd1 Re5 21.Qf1 Qf1 22.Rf1 Bd2 23.Kd2 f5 24.ef5 Ref5 25.Rg1 Re8 26.c4 Rf2 27.Kc3 Ree2 28.a4 Rb2 (28...Rb2 29.Rc1 Nb4 30.Rf1 Na2 31.Kd4 Rf1 32.Ke3 Nc3 33.Kd4 Rc2 34.Ke3 c5 35.d4 Re2 36.Kd3 Rf3#; 28...Rc2 29.Kb3 Nd4 30.Kb4 c5 31.Ka5 Nc6 32.Kb5 Rb2#) 0–1. crome – theblizzard, ChessWorld.net, 2005.

6.Qb3 Nc6 7.e3 Re8 8.a3 Ba5 9.Nf3 b6 10.Bd3 Ne5 11.Ne5 Re5 12.f4 Qf4 13.Be2 Qh4 14.g3 Qh6 15.c4?? (better is 15.Qc4 c6 16.Bg4–/+) 15…Re3–+ (15...Re3 16.Qd1 Bb7–+) 0–1. Cook,Phil – Murphy,Jones, SL–2007–0–00097, 2007.

6.Qb3 Nc6 7.Nf3 Re8 8.d4 Ba5 9.Nbd2 d5 10.Rc1 Qe6 11.e3= Qg4 12.Qd5+/– Be6 13.Qb5 Bb6 14.d5+/– a6 15.Qc4 Na5 16.Qg4 Bg4 17.h3 Bf3 18.Nf3 Rad8 19.Rd1 Rd6 20.g3 c6 21.c4 Red8+= 22.Bd3 cd5 23.cd5 Rd5 24.Ke2 Rc5 25.Rb1 Rc6 26.Rhd1 Re8 27.Bf5 Rf6 28.Rd5 g6 29.Bd3 Bd8 30.a4 Rc6 31.Nd4 Rc8 32.g4 h6 33.h4 Nc4 34.Rb7+– Bh4 35.Rb4 Ne5 36.Ba6 Rc1 37.Bb5 Re7 38.a5 Ra1 39.Ra4 Ra4 40.Ba4 Ng4 41.Nc6 Re4?? 42.Rd4 Rd4 43.ed4 Nf6 44.Nb4 Ne4 45.a6 Nc3 46.Kf3 (46.Kf3 Na4 47.Nd5+–) 1–0. pierred – Mopsus, ChessWorld.net, 2005.

5.c3 Bc5 6.e3 Nc6 7.d4= Bb6 8.Bb5 a6 9.Bc6 bc6 10.Qf3 Qe7 11.Ne2 Rb8 12.0–0 Ba7 13.Nd2 d5 14.Rab1 Ra8 15.a4 f5 16.Qh5 g6 17.Qf3 g5 18.Nb3 g4 19.Qg3 h5 20.a5 Rf8 21.Nf4?? Rf6?? 22.Nh5+– f4?? 23.Nf4 Rb8 24.h3?? Rh6? (24...Rh6 25.hg4 Qh7+–; better is 24...Bf5 25.e4 Be4+/–). crome – kurt5561, ChessWorld.net, 2005.

5.c3 Be7 6.d4 d5 7.e3 0–0 8.Nd2 c6 9.Qf3 Qg6 10.e4 Bg5 11.Nb3 de4–+ 12.Qg3 Qf6 13.f3?? Bh4 14.Ke2 Bg3 15.hg3 Qg5 16.Rh3 Bh3 17.Kf2 e3 18.Ke2 Be6 19.Nc5 Bc4 20.Nd3 Qa5 21.Ke3 Qa2 (better is 21...Qc3 22.Ne2 Qa1–+). crome – Alissa, ChessWorld.net, 2005.

6.d4 Ba5 7.Nd2? Bc3–+ 8.Rc1 Qd4 9.e3 Qb4 10.Ne2 Bd2 11.Qd2–/+ Qd2 12.Kd2 c6 13.Nd4 d5 14.Bd3 Nd7 15.f4 Nf6–+ 16.Bf5 c5! 17.Bc8 Rac8 18.Nb5 Ne4 19.Ke2 a6 20.Nc3 Nc3 21.Rc3 Rfe8 22.Rd1 d4 23.Rc4? Re3 24.Kf2 b5 (24...b5 25.Rc2 Re4–+) 0–1. Tobin,S – Wall,Bill, internet, 2001.

6.d4 Ba5 7.Nf3 d5 8.Qb3 c6 9.h3 Qh6 10.Ne5?? Qc1–+ 11.Qd1 Qb2 12.Nd2 Bc3 13.Nef3?? Bd4 14.Nd4 Qd4 15.e3 Qc3 16.Rb1 f5 17.Rb3 Qa5 18.Qb1 c5 19.Rb5 Qc7–+ 20.Bd3 a6 21.Rb6 Nd7 22.Re6 Ne5 23.Bf5 g6 24.Rg6?! Ng6 25.Bg6 hg6 26.Qg6 Qg7 27.Qd6 Qf6 28.Qd5 Be6 29.Qc5 Rac8 30.Ne4 Rc5 31.Nf6 Rf6 32.0–0 Ba2 33.Rd1 b5 34.Rd8 Kg7 35.Rd7 Kg6 36.f4 Rc1 37.Kh2 Re1 38.Rd3 Bc4 39.Ra3 a5 40.Ra5 Re3 41.g4 Rd6 42.h4 Rd2 (42...Rd2 43.Kg1 Re1#) 0–1. Kientzler,Roland – Rosner,Dirk, corr SOK–89–37, 1989.

6.d4 Be7 7.e3 d5 8.Nf3 Bg4 9.Be2 Nd7 10.0–0 Bd6 (11.Nbd2 Nb6=+). Orlok – Hflew, ACL–T055 playchess.de, 2003.

6.d4 Be7 7.Nf3 d6 (7...d5 8.e3–/+) 8.e3 Qg6 9.g3 Bf5 10.Bg2 Nd7 11.0–0 c6 12.Nbd2 d5 13.Re1 Qe6 (13...b6 14.e4 de4 15.Ne4=) 14.Qb3= Rab8 15.c4 dc4 (15...b5 16.cd5 cd5 17.Ne5 Ne5 18.Bd5+=) 16.Nc4 Be4 17.Nfe5 Bg2 18.Kg2 Bf6 19.Nd7 Qd7 20.a4 (20.Rad1 Rbd8+=) 20...Rfe8 21.Kg1 (21.Rac1 Qd5 22.f3 b5 23.ab5 cb5=) 21...b5 (better is 21...c5!?–/+) 22.ab5= Rb5 23.Qa3 Rh5 24.Nd2 a5 25.Qc3 c5 26.Nf3 (26.Qa5 Rd5 27.e4 Rd4=) 26...Qg4 27.Kg2 (better is 27.Nd2=) 27...Rf5?? (better is 27...Qe4 28.Qd2 Rf5–+) 28.e4+/– Re4?? (better is 28...Rf3 29.Qf3 Qf3 30.Kf3 Bd4+/–) 29.Re4 (better is 29.h3 Rf3 30.Qf3 (30.hg4?! Rc3 31.Re4 h6+/–) 30...Qf3 31.Kf3 Re1 32.Re1+–) 29...Qe4= 30.Ra5 g5 31.Rc5?? Rc5–+ 32.Qc5 g4 33.Qc3 gf3 34.Qf3 Qf3 35.Kf3 Bd4 36.g4 Kg7 37.h4? Kf6 38.Kg3 Ke5 39.f3 Bc3 40.g5 Kf5 41.f4 Be1 42.Kf3 Bh4 43.Ke3 Bg3 44.Kf3 Bf4 45.g6 0–1. Bialucha,Sebastian – Lizak,Jakub (1855), Mistrzostwa Miedzywojewodzkie Juniorow Poland, 2012.

6.e3 Be7 7.Be2 d5 8.Nf3 c6 9.d4 b5 10.0–0= a5 11.Bd3 Bf5 12.a4 b4 13.Bf5 Qf5 14.cb4 ab4 15.Nbd2 Nd7 16.Qb3 Ra6 17.Ne1 Rfa8 18.Nd3 c5 19.dc5 Nc5 20.Nc5 Bc5 21.Nf3 Bd6 22.Rfd1 Ra5 23.Nd4 Qe5 24.g3 R8a6 25.Ra2 Qh5 26.Rc1 Bc5 27.Rac2 Bf8 28.Rc8 Ra4 29.Nc6 g6 30.Qb2 Rc6+/– 31.Rf8 Kf8 32.Qh8 Ke7 33.Rc6 (33.Rc6 Qd1 34.Kg2+–) 1–0. Kaminski,Roman – Krasny,Henryk Jan, corr 3GMM½–07, 1998.

6.g3 c6 7.Bh3 d5–/+ 8.Bc8 Rc8 9.Qb3 Bc5 10.d4=+ Bb6 11.Nf3 Nd7 12.0–0 Re8 13.e3?? Qf3–+ 14.Nd2 Qh5 15.c4 Ba5 16.Qb7 Bd2 17.Qd7 dc4 18.Qc6 Rac8 19.Qa4 c3 20.Qc2 Qg6 (20...Qg6 21.Qg6 fg6–+) 0–1. Klootwijk,P – Kalisvaart,Peter, Vlissingen HZ op 4th, 2000.

5.c3 Ba5

6.a4 Bb6 7.d3?? Qf2 8.Kd2 Nc6 9.Nf3 Qe3 10.Kc2 Qc5 11.d4 Qc4 12.Na3 Qa4–+ 13.Kd2 Qd1 14.Rd1 0–0 15.e3 d5 16.c4 Ba5 17.Kd3 Bf5 18.Ke2 Nb4 19.Ne5 f6 20.Nf3 Bg4 (20...Bg4 21.Ra1 a6–+; 20...Na2 21.Ra1 Nc3 22.Kd2 Ne4 23.Kc1–+) 0–1. crome – Castlegrande, ChessWorld.net, 2005.

6.Qb3 b6 7.Na3 Nc6 8.Nc4 d5 9.Ne3 Be6 10.Rc1 d4 11.Qc2?? de3–+ 12.fe3 0–0 13.Qa4 Bd7 14.d4 Rfe8 15.Kd2 Qe6 16.a3 Qe3 17.Kd1 Re7 18.d5 Ne5 19.c4 Ba4 (19...Ba4 20.Rc2 Qd2#; 19...Qd2#) 0–1. crome – wee harv, ChessWorld.net, 2005.

6.d4 Nc6 7.Nf3 d6 8.e3 Bg4 9.Be2 0–0 10.0–0 Rfe8 11.a3 h6 12.Ra2 a6 13.Rc2 Na7 14.Nbd2 c6 15.e4 Bc7 16.h3= Bh5 17.g4 Bg6=+ 18.e5? de5–+ 19.Rb2 b6 20.de5–/+ Be5 21.Ne5 Qe5–+ 22.Nf3 Qc3 23.Rb6 Nb5 24.Bb5 ab5 25.Rb7 Be4 26.Re1 Bf3 27.Re8 Re8 28.Qb1 Be4 29.Qa2 Bd5 30.Qb1 Qh3 31.Qf5 Qg2# 0–1. badboy1221 – Pulsar, Live Game Caissa's Web, 2006.

6.Nf3 0–0 7.e3 d5 8.Bd3 Bg4 9.0–0 Nd7 10.h3 Bf3 11.Qf3 Qf3 12.gf3 Nf6 13.Na3 c6 14.Rab1 b5 15.Rb2 a6 16.e4 Rad8 17.e5 Nh5–+ 18.Kh1 Nf4 19.Bf5 g6 20.Bg4 h5 21.Bf5 gf5 22.Rg1 Ng6 23.Nc2 (23.Nc2 Kh7 24.d4–+). mwojo (1745) – minn (2000), net–chess.com, 2004.

5.c3 Nc6

6.a3 Be7 7.a4 0–0 8.Na3 Re8 9.Nb5 Bd8 10.e3 a6 11.Nd4 Nd4 12.cd4 Qd4 13.Be2 Qd5 14.Nf3 d6 15.Qc2 Bf5 16.Bc4 Qf3 17.gf3 Bc2 18.Rg1 Bf6 19.Rc1 Ba4 20.Bf7 Kf7 21.Rc7 Re7 22.Re7 Ke7 23.d4 b5 24.Kd2 a5 25.Kc3 b4 26.Kb2 Bc6 27.Rc1 Bf3 28.Rc7 Ke6 29.Kb3 Bh4 30.Kc4 Be2 31.Kb3 Bf2 32.e4 Bd4 33.Rc1 Ke5 34.Rh1 Bf3 35.Rc1 Ke4 36.Ka4 Bc3 37.Kb5 a4 38.Rb1 a3 39.Rb4 Bb4 40.Kb4 Kd3 41.Kb5 Rb8 42.Ka4 a2 (43.Ka3 a1Q#) 0–1. TD_6 – Oort, ICS rated light match, 1998.

6.a3 Be7 7.d4 d5 8.e3 Bd7 9.Qf3= 0–0–0 10.Qf6 Bf6 11.Bb5 Kb8 12.Bc6 Bc6=+ 13.Ne2 Rhe8 14.Ng3 Bb5 15.Nf5 b6 16.Nd2 c5–/+ 17.Rb1? Bd3–+ 18.Rb3 Bf5 19.dc5 Kb7 20.0–0 Rc8 21.c4 Rc5 (21...Rc5 22.Rb5 Rb5 23.cb5 Bd3–+) 0–1. crome – coolerdude, ChessWorld.net, 2005.

6.Qc2 0–0 7.d4? Nd4–+ 8.Qb2 Bc5 9.e3 Re8 10.Ne2 d5?? 11.cd4+/– Bd4?? 12.Nd4 c5 13.Be2 cd4 14.Qd4 Qc6? 15.Nc3 a6 16.Rc1 Be6 17.Bf3 Rad8 18.Rd1 f5 19.Nd5 f4 20.Ne7! Kh8 21.Nc6 Rd4 22.Nd4 Ba2 23.0–0 g5 24.ef4 gf4 25.Bb7 a5 26.Ra1 Bc4 27.Rfe1 Rd8 28.Re4 f3 29.gf3 Rg8 30.Kh1 Bd3 31.Rg4 Rb8 32.Rc1 Bf5 33.Nf5 (33.Nf5 Rf8 34.Nh6 a4 35.Rc8 Rc8 36.Nf7#) 1–0. Borup,John – Karlsson,Roger, IECC, 2001.

6.e3 d5 7.Nf3 Be6 8.Bb5 Bd6 9.0–0 Bh3?? (9...0–0+=) 10.Nh4?? (better is 10.gh3 0–0 11.d4+–) 10...Qg5 (10...Qh4!? 11.gh3 Qh3–+) 11.Qf3?? (better is 11.Qa4+=) 11…Bg4–+ (11...Qh4?! 12.gh3 Qg5 13.Qg4–/+) 0–1. De la Nunez – Garcia, corr Spain, 1984.

6.e3 d5 7.Nf3 Be6 8.d4 Bd6 9.Bb5 0–0 10.0–0 Bh3?? 11.Nh4?? Qg5 12.Qf3?? Bg4 (12...Bg4 13.h3 Bf3 (13...Qh4?! 14.Qg4 Qg4 15.hg4=) 14.Nf3 Qf5–+; 12...Qh4?! 13.Qh3 Qh3 14.gh3=) 0–1. Nunez – Garcia, corr Spain, 1984.

6.e3 Be7 7.Qg4 d5 8.Qg3 Bd6 9.Qf3 Qg6 10.Qd5 Qc2 11.Bc4?? (Better is 11.Qb3 Qc1 12.Qd1–+) 11...Be6 12.Qb5 Qc1 13.Ke2 a6 14.Qb7 (14.Na3 ab5 15.Rc1 Ba3 16.Be6 Bc1 17.Bb3–+) 14...Bc4 15.d3 Bd3! 16.Kd3 Qd1 17.Ke4 (17.Nd2 Ne5 (17...Qa1?! 18.Qa8 Nd8 19.Qe4 Kf8 20.Qa4=) 18.Ke4 Qg4 19.f4 Qg6 20.f5 Qg4 21.Kd5 Qf5 22.Qb1 Qe6 23.Kd4 c5 24.Ke4 f5 25.Kf4 Nc4 26.Kg5 Qg6 27.Kh4 Qg4#) 17...f5! 18.Kf5 0–0 19.Ke4 (19.Ke6 Qg4 20.Kd5 Ne7#) 19...Rae8# 0–1. Rey_Mysterio – marekt, ChessWorld.net, 2004.

6.e3 Bf8 7.d4 d5 8.Nd2 Nd8 9.Ngf3 Bg4 (better is 9...Bd6) 10.Qb3 Bf3 11.Nf3 Qf5 12.c4 dc4 13.Bc4 Qf6 14.0–0 a6 15.Rad1 Bd6 16.e4 Qh6 17.e5 Be7 18.d5 0–0 19.Bd3 Bc5 20.Qc4 Bb6 21.h3 Ba5 22.Qa4 b6 23.Rc1 Nb7 24.Rc6 g6 25.Nh2 b5 26.Ng4 ba4 27.Nh6 Kg7 28.Ng4 Rfe8 29.f4 Red8 30.Nf6 Bb6 31.Kh2 Na5 32.Rc3 Nb7 33.Bc2 Nc5 34.Rd1 Rab8 35.a3 Nd7 36.Nd7 Rd7 37.Ba4 Rdd8 38.g4 Ba5 39.Rc6 Rb2 40.Kg3 Bb6 41.Rd3 Kf8 42.Bb3 Rb8 43.Bc2 Ke8 44.Kf3 a5 45.h4 Ra2 46.Ke4 Ra1 47.Bd1 Kf8 48.f5 Rb1 49.f6 Rd8 50.g5 Kg8 51.Rcc3 Re8 52.Kf4 Rd8 53.Rc6 Kf8 54.Rd2 Kg8 55.Ke4 Kf8 56.h5 Kg8 57.h6 Rb5 58.Ba4 Rb1 59.Rd1 Rb2 60.e6 Re2 61.Kf4 Rf2 62.Kg3 1–0. Wall,Bill – NYJM, FICS, 2012.

4.g3 0–0

5.a3 d6 6.Bf4 Ba5 7.Bg2 c6 =+.

5.a3 Be7 6.Bg2 Nc6 7.Bb2 Re8 =+.

5.Bb2 Nc6 –/+.

5.c3 Nc6 6.Bc7 Qc7 7.cb4 Nb4 8.Na3? (better is 8.Nc3 d5 9.Qb1–+) 8...Qe5–+ 9.Nc4 (9.Qb1 Nd3!! 10.Qd3 Qa1 11.Qb1 Qb1 12.Nb1–+) 9...Nd3 0–1. marinscrofan (1770) – chpot (1935), gameknot.com, 2014.

5.c3 d6 –/+.

5.c3 Be7 6.d4 c5 7.e3 cd4 8.ed4 Re8 9.Be2 Bf8 10.Nf3 Qe7 11.a4 Qe6 12.Qc2 b6 13.Be5 d6 14.Bf6 Qf6 15.0–0 Bb7 16.Bb5 Be4 17.Qa2 Re6 18.Nbd2 Bb7 19.Rfe1 Re1 20.Re1 Nc6 21.Ne4 Qg6 22.Neg5 Ne7 23.Bc4 d5 24.Bb3 h6 25.Bc2 Qf6 26.Nh7 Qd6 27.Ne5 Nc6 28.Nf8 Rf8 29.Bb1 Ne5 30.Re5 Rc8 31.h4 g6 32.h5 Rc3 33.Qd2 Qa3 34.Bc2 g5 35.Re8 Kg7 36.Qe1 Rc6 37.Re7 Bc8 38.Qe5 Rf6 39.Rc7 Be6 40.Kh2 Qc1 41.Bf5 Qf4 42.Qf4 gf4 43.Be6 Re6 44.f3 a5 45.Kh3 Re2 46.Rd7 Ra2 47.Rd5 Ra4 48.Rd8 Rb4 49.d5 a4 50.d6 Kf6 51.Rh8 Rd4 52.d7 Rd7 53.Rh6 Kg5 54.Rb6 Ra7 55.g4 fg3 56.h6 f6 57.Kg3 Kh6 58.Rf6 Kg5 59.Rb6 a3 60.Rb1 Kf5 61.f4 Ke4 62.Re1? Kf5 63.Kf3 Rb7 64.Re5= Kf6 65.Ra5 Rb3 66.Kg4 ½–½. Dergatschova Daus,Anna (2225) – Sebag,Marie (2280), BL, 2002.

5.e3 c6 6.Nf3 d5 7.Bg2 Bg4 8.h3 Bh5 9.0–0 Nbd7 10.Bb2 Nb6 11.d3 Qc7 12.Bf6+= gf6 13.c3 Bd6 14.Nbd2 Kh8 15.Qc2 Rg8 16.a4 Rg7 17.Nh4 Bg6+= 18.a5 Nd7 19.Ng6 fg6 20.c4 dc4 21.Qc4 Re7 22.a6 b6 23.Qc6+/– Qc6 24.Bc6 Rc8 25.Bb7 Rc2 26.Ne4 Be5 27.Rac1 Ra2 28.d4 Bb8 29.Rc8 Kg7 30.Rfc1 f5 31.Nc3 Ra5 32.Nd5 Rf7 33.Nb4 (33.Nb4 Bd6 34.Nc6+–) 1–0. marekt – touwladder, ChessWorld.net, 2004.

5.e3 Nc6 6.Bb2 d5 7.c3 Bd6 8.Bg2 Bf5 9.d4 Qd7 10.Nf3 Rfe8 11.0–0 Rad8 12.Ba3 b6 13.Bd6 Qd6 14.Re1 Ne4 15.Nfd2 Qg6 16.Qb3 Ng5 17.Na3 Nh3 18.Bh3 Bh3 19.c4 Na5 20.Qc3 Qf5 21.c5=+ Re7 22.Rac1 Nb7 23.Qb3 Rde8 24.Qb5 Nd8 25.cb6 cb6 26.Rc7 Qe6 27.Rec1 Bf5 28.Qa4 Rc7 29.Rc7 a5 30.Qb5 Kf8 31.Rc3 Re7 32.Nab1 Be4 33.Ne4 de4 34.Rc4 Rd7= 35.Nc3 f5 36.Na4 Rd6 37.a3 Nf7 38.Rc2 Ng5 39.Rc7 Nf3 40.Kg2 Ne1 41.Kh1 Nd3 42.Kg1 Ne1 43.Rb7 Nf3 44.Kg2 Ne1 45.Kf1 Nf3 46.Nb6 Nh2 47.Kg2 Ng4 48.Qa5 Nf6 49.Qc5 Ke8 50.Nc4 Rd8 51.Rg7 Rd5 52.Qc7 Kf8 53.Qb7 Rb5 54.Qb5 Kg7 55.a4 Kg6 56.a5 Nd5 57.Ne5 Kf6 58.a6 Qg8?? 59.a7 Qa8 60.Qb8 (60.Qb8 Qb8 61.ab8Q Ne3 62.fe3+–) 1–0. Psion – Psion, 4 Min/Zug, 1990.

5.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 0–0 5.g3).

5.Bg2 c6 6.Nf3 d5 7.0–0 Nbd7 8.Bb2 Bd6 9.d3 Qe7 10.Nbd2 Ne5 11.Ne5 Be5 12.Be5 Bf5 13.Nf3 Bg6 14.Bb2 Nd7 15.Nh4 Rae8 16.Ng6 hg6 17.e3 Ne5 18.e4 de4 19.Be4 f5 20.Bg2 g5 21.Re1 Qc7 22.Qh5 Qa5 23.Qg5 Nf3 24.Bf3 Re1 25.Re1 Qe1 26.Kg2 Rf7 27.Bh5 Rd7 28.Qf5 Re7 29.Ba3 Qe6 30.Qe6 Re6 31.Bb4 a5 32.Bd2 b6 33.Bg4 Rd6 34.Bf3 c5 35.Bf4 Rd7 36.Be4 1–0. TomJobe – nimzo1, ChessWorld.net, 2014.

5.Bg2 d5 6.a3 Be7 7.Nf3 c5 =+.

5.Bg2 Be7 6.Nf3 d6 7.Bb2 Nc6 8.0–0 d5 9.d3 Be6 10.Nbd2 a6 11.c4 b6 12.cd5 Bd5 13.e4+= Be6 14.d4 Bg4 15.d5 Ne5?? 16.Be5+– b5 17.Qc2 Bd6 18.Bd4 Be7 19.Ne5 Bd7 20.Nd7 Qd7 21.Qc6 Qd6 22.Rfc1 Qc6 23.Rc6 Bd8 24.a4 b4 25.Bc5 Re8 26.Bb4 Rb8 27.Ba5 Rb2 28.Ra6 Rc2 29.Rc6 Rc6 30.dc6 h6 31.Rd1 Nh7 32.Nb3 Ng5 33.f4 Ne4 34.Be4 Re4 35.Rd8 Kh7 36.Bc7 Rc4 37.Rd6 Ra4 38.Ba5 1–0. PeterRs – DanielMena, ChessWorld.net, 2006.

5.Bg2 Nc6

6.Bb2 d5 (--> 4.g3 Nc6 5.Bb2 d5 6.Bg2 0–0).

6.Bb2 d5 7.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bb2 0–0 6.g3 d5 7.Bg2).

6.Nf3 Ne5 7.Ne5 Re8 8.Nf3 (8.Nd3!? Ba5 9.Nc3–/+) 8...d5 9.c3 Bd6 10.d3 Qe7 11.Nbd2 (11.e3 Qd7–/+) 11...b6 (11...Ng4 12.e4 f5 13.Qb3–/+) 12.e3–/+ Ba6 (12...Bf5 13.Qc2–/+) 13.Qc2 c5 14.0–0 Rad8 15.Rfd1 Bb7 16.a4 Bc6 17.Nh4 (17.d4 Qc7+=) 17...g6 (17...Qe6 18.Nhf3–/+) 18.c4 Qd7 (18...Be5 19.Ra3+=) 19.a5+= b5 20.cb5 (20.cd5!? Bd5 21.Bd5 Nd5 22.Ne4–/+) 20...Bb5–/+ 21.Rab1 (21.Ndf3 Rb8–/+) 21...a6 (21...Ba4 22.Nb3–+) 22.Bf1 (22.Qc3 Qe6–/+) 22...Rc8 (22...Ba4 23.Nb3–+) 23.Qb2–/+ Nh5 (23...Qe7 24.Nhf3–/+) 24.Nhf3+= Qe7 (24...Bc7 25.Qa3+=) 25.Bh3 (25.e4 Nf6+=) 25...Rb8 26.Qa2 (better is 26.Qc2+=) 26...c4?? (better is 26...Nf6 27.Qc2 Bc6+=) 27.dc4+/– Bc4 (better is 27...dc4 28.Nc4 Bc7+/–) 28.Qc2?? (28.Nc4 dc4 29.Qc4 Nf6 30.Qa6 Rb1 31.Rb1 Qe4+–) 28...Bb4?? 29.Nd4 Qc5 30.N2b3 Qe7 ½–½. Martinez Pastor,Francisco – Pardinas Riano,Emilio (1800), ESP–ch Veterans, 2010.

5.Bg2 Re8

6.Bb2 d5 7.e3 Bf5 8.Ne2 Nbd7 9.0–0 c6 10.d3 Qb6 11.Nbc3 h6 12.Rb1 Qa5 13.Qd2 Bh7 14.a3 Bd6 (14...Ba3? 15.Ra1+–) 15.Ne4 Qd2 16.Nd2 b5 17.Nd4 Rac8 18.Bh3 a6 19.a4 (19.N2f3!?=) 19...ba4+= 20.Ra1 Rb8 21.Bc3 c5 22.Nf5 Bf5 23.Bf5 Nb6 24.Nf3 Re7 25.Bf6 gf6 26.Rfb1 h5 27.Bh3 Ree8 28.c3 Bf8 29.Bf1 Kh8 ½–½. Fels,Bernhard (2015) – Callow,Chris (1990), WC–2010–F–00008, 2010.

6.Bc3 Bc3 7.Nc3 d5 8.d4 c5 9.e3 Nc6–/+ 10.Nge2 cd4 11.ed4 Bg4 12.h3 Be2–+ 13.Ne2 Qe7 14.Bf3–/+ Qa3 15.Bg2 Qa6 16.Bf3–/+ Qa3 17.Bg2 Qa6 18.Bf3= Qa3 ½–½. Fancy,Stuart (2125) – Van Tilbury,Craig (2280), 38th Olympiad, 2008.

6.Bc3 Bc5 7.d4 Bb6 8.Nf3 Qe7 9.e3 Ne4 10.0–0 Nc3 11.Nc3 Nc6 (11...c6!?=) 12.Nd5+= Qd6 (12...Qa3!?+=) 13.Nd2+/– Ba5? (better is 13...Qg6 14.Nc4 d6+/–) 14.Nc4+– Qb4 1–0. usingprogram (2000) – sepeshi, kurnik, 2013.

6.Bc3 Qe7 7.Bb4 Qb4 8.Nc3 c6 (8...Nc6 9.Nh3+=) 9.e3 d5 10.Nge2 Bg4 11.Rb1 Qe7 12.f3 Bh5 (12...Bc8 13.Qc1=) 13.0–0 Na6 14.Nf4 Bg6 15.Ng6 hg6 16.Ne2 (16.Re1 b5=) 16...c5 17.c3 c4 18.Re1 Nc5 19.Nf4 (19.Qc2 a6=) 19...b6 20.d4 Ne6 (better is 20...g5!? 21.Qd2 Rad8+=) 21.Ne6+= Qe6 22.e4 Qd7 23.e5 Nh5? (better is 23...Nh7!?+/–) 24.Qc1+– f5 (24...g5 25.Qg5 g6 26.f4+–) 25.Qg5 Kh7? (25...Qe7 26.Qg6 Qf7+–) 26.g4 fg4 (26...Qd8 27.Qd8 Rad8 28.gh5+–) 27.fg4 Nf6 (27...Qd8 28.Qe3+–) 28.ef6 gf6 29.Qf6 Rf8 (29...Re1 30.Re1 Re8+–) 30.Re7 1–0. zrenjanin (1955) – scheveloper (1645), gameknot.com, 2010.

6.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 0–0 5.g3 Re8 6.Bg2).

4.g3 Nc6

5.Bb2 d6 (--> 4.g3 d6 5.Bb2 Nc6).

5.Bc3 d5 6.Bb4 Nb4 7.a3 Nc6 8.Bg2 0–0 9.Nf3 Bg4 10.0–0 Re8 11.d3 d4 12.Nbd2 (12.c3 Rb8+=) 12...Nd5–/+ 13.Qe1 h6 14.Ne4 f5 15.Ned2 Qf6 Black intends f4 16.Nb3 Rad8 17.Qd2 b6 18.h3 Bh5 19.Rae1 f4 20.Nh4 g5 21.Bd5 Rd5 22.Nf3 Bf3 23.ef3 Re1 24.Qe1 Re5 25.Qd1 fg3 26.fg3 Qe6 27.f4 Re3 28.Kg2 (28.Qh5 Rg3 29.Kh2 gf4 30.Rf4 Rg5–/+) 28...Re2 29.Rf2 Rf2 30.Kf2 Qh3 31.Qf3 Qe6 (31...Qh2 32.Qg2 Qg2 33.Kg2 gf4 34.gf4–/+) 32.Nd2 (32.Qe4 Qe4 33.de4 Kf7–/+) 32...gf4 33.gf4 Kf8 34.Qe4 Qe4 (34...Qf6!?–/+) 35.de4+= b5 (35...Ne7 36.Kf3+=) 36.Kf3 a5 0–1. marekt (1615) – pinotgris (1700), gameknot.com, 2013.

5.f4 0–0 6.c3 Ba5 7.Bg2 Bb6 8.Bc6 bc6 9.Nf3 Re8 10.Qc2 d6 Black fights for the Initiative 11.Bd4 Bg4 12.Ng1 (12.Qd3 Ne4–/+) 12...c5–+ 13.Be3 d5 14.h3 Bc8 15.Nf3 (better is 15.Bf2–+) 15...d4 16.Ne5 (16.a4 a5 17.cd4 cd4–+) 16...de3 17.de3 (17.Qd3 Bb7 18.Qd8 Rad8–+) 17...Qd5 18.Rh2 Qe4 (better is 18...Re5 19.fe5 Qe5 20.Nd2 Qg3 21.Rf2 Bh3 22.Qa4–+) 19.Qe4 Ne4 20.g4 f6 (20...Be6 21.Nf3–+) 21.Nc4 Ba6 22.Nbd2 (22.Nb2 Ba5 23.Nd1 Rad8–+) 22…Nd2 (22...Nd2 23.Nd2 Re3–+) 0–1. Williams,Barry M – Bennett,Hilton Paul, corr NZCCA TT res, 1998.

5.Bf4 0–0 6.Bg2 d5 7.Nf3 Bf5 =+.

5.Bf4 d5 6.c3 Bc5 7.d4 Bb6 8.Bg2 0–0 9.Bg5 h6 10.Bf6 Qf6 11.e3 Re8 12.Ne2 Bg4 13.Na3?? (better is 13.Bd5 Rad8 14.Bc6 Qc6 15.Rg1+=) 13...Nd4!–+ 14.cd4 (14.cd4 Ba5 Double attack; 14.Nd4 Bd1 Pinning (14...Bd1 Deflection); 14.ed4 Re2 Double attack (14...Re2 Pinning; 14...Re2 Deflection)) 14...Ba5 15.Kf1 Re3 16.Qa4 Re2 (worse is 16...Be2 17.Kg1 Ra3 18.Qa3 Qd4 19.Rc1–+) 17.f4 Qe6 18.Nc2 Rg2! 0–1. Williams,Barry M – Dunwoody,Murray L, NZCCA HT corr New Zealand, 1998.

5.Bf4 Nd5 6.Nh3 Qf6 7.c3 d6 =+.

5.Bb2 0–0

6.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bb2 0–0 6.g3).

6.Bg2 d5 (--> 5.Bb2 d5 6.Bg2 0–0).

6.Bg2 d5 7.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bb2 0–0 6.g3 d5 7.Bg2).

6.Bg2 Re8 7.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bb2 0–0 6.g3 Re8 7.Bg2).

5.Bb2 d5

6.c3 Be7 7.d4 0–0 8.Bg2 Na5 9.Nd2 Bf5 10.Ngf3 c6 11.0–0 Qc7 12.Rc1 b5 13.Nh4 Be6 14.e4 Ne4 15.Ne4 de4 16.Be4 Bh4 17.gh4 Nc4 18.Rc2 f5 19.Bd3 Qf4 20.Qh5 Nb2 21.Rb2 Rf6 22.Kh1 Rh6 23.Qe2 Bd5 24.f3 Re6 25.Qd1 Re3 26.Rbf2 Qh4 27.Qc2 Qf4 28.Qd2 Rf3 0–1. Stoklas,V – Miskovsky,P, corr Czechoslovakia, 1976.

6.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bb2 0–0 6.g3 d5).

6.Bg2 Be6 7.c3 Bd6 8.d4 0–0 9.Nd2 Qd7 10.Ngf3 Rfe8 11.0–0 Bf5.

6.Bg2 Be6 7.Nf3 h6 8.0–0 0–0 9.d3 Be7 10.Nbd2 Qd7 11.Re1 Rad8 12.Nb3 Bh3 13.Bh1 Rfe8 14.Rb1 b6 15.Qc1 Nb4 16.Ne5 Qc8 17.a3 Na6 18.Nc6 Rd7 19.Ne7+– Rde7 20.Bf6 gf6 21.Qh6 Re2 22.Re2 Re2 23.Nd4 Re7 24.Bd5 c5 25.Qg6 Kf8 26.Qf6 Rc7 27.Re1 Kg8 28.Nc6 Qd7 29.Ne7 Kh7 30.Qf7 (30…Kh8 31.Qg8#) 1–0. Wojcik,Artur – Lewandowska,Paulina, Bydgoszcz op–C, 1999.

6.Bg2 Be6 7.Nf3 h6 8.0–0 0–0 9.d3 Nh7 10.Nbd2 Qd7 11.c4 dc4 12.Nc4 (worse is 12.dc4 Rad8 13.Qc2 Bf5+=) 12...Bc4 13.dc4 Qd1 14.Rfd1 Rad8 15.e3 Rd1 16.Rd1 Rd8 17.Rd8 Nd8 18.Nd4 c6 19.h3 Ng5 20.Kf1 Nge6 21.Ke2 f6 22.f4 Kf7 23.Bf3 Nc5 24.a3 Ba5 25.Nf5 Bc7 26.g4 Nde6 27.h4 a5 28.h5 Na4 29.Ba1 Nec5 30.g5 hg5 31.fg5 Be5 32.Be5 fe5 33.Nd6 Kg8 34.Kd1 e4 35.Bg2 b5 36.Kd2 b4 37.ab4 ab4 38.Be4 Ne4 39.Ne4 c5 0–1. Lopez Gomez,J.R – Sanson Hernandez,Manuel G, Fair Play /2003, 2005.

6.Bg2 Bg4 7.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bb2 0–0 6.g3 d5 7.Bg2 Bg4).

6.Bg2 0–0

7.a3 Ba5 8.Nf3 d4 9.0–0 Re8 10.d3 Qd6 (10...Bg4!?+=) 11.Nbd2= Bc3 12.Bc3 dc3 13.Nc4 Qc5 14.e3 (14.Rb1!?=) 14...Be6–/+ 15.Qe2 (15.Qb1 Rab8 16.a4 Bc4 17.dc4 a6–/+) 15...b5 16.d4?? (better is 16.Nd4 Bg4 17.Qe1 Nd4 18.ed4 Qd4 19.Ne3–+) 16...Bc4–+ (16...Bc4 17.dc5 Be2–+) 0–1. wreck_tangle (1845) – condoru (2065), gameknot.com, 2014.

7.c3 Be7 8.Nf3 Bf5 9.d4 Qd7.

7.Nc3 d4 8.Ne4 Ne4 9.Be4 Re8 10.Bg2 Ne5 11.Nf3 Nf3 12.Bf3 Bh3 13.c3? (better is 13.Qc1 Qf6 14.Kd1–+) 13...Qf6 14.cb4 (14.Qb3 Qf3 15.0–0–0 Re2 16.Qb4–+) 14...Qf3 15.Rg1 Rad8 16.e3 (16.Bd4 Rd4 17.e3–+) 16...de3 17.Qf3 ef2 (17...ef2 18.Kd1 fg1Q (worse is 18...fg1B 19.Kc2 Bd4 20.Bd4 Rd4 21.Kc3+=) 19.Kc2 Qh2–+) 0–1. zrenjanin (2040) – kostini (2125), gameknot.com, 2015.

7.Nc3 Re8 8.h3 Ne5 9.a3 Ba5 10.Na4 Nc4 11.Bc3 Bc3 12.Nc3 d4 13.Nb1 Qd6 14.Nf3 Qb6 15.Ra2? Nb2–+ 16.Qc1? Qe6 17.Nd4 Qa2 18.Nb3 Qb3! 19.cb3 Nd3 20.Kd1 Nc1 21.Kc1 Re2 22.Rf1 c6 23.Kd1 Re7 24.Nc3 Bf5 25.Rg1 Rae8 26.b4 Ne4 27.Ne4 Be4 28.Be4 Re4 29.Kc2 Re2 (29...Re2 30.f3 Rd8–+) 0–1. Reussner,Hans_Dieter – Woschkat,Karl_Heinz, DESC, 2000.

7.e3 Be6 8.Ne2 Qd7 9.Nf4 Rfe8 10.Bf6+= gf6 11.Nh5 Qe7 12.Qf3?? f5 13.Qf4 f6 14.g4 d4 (14...d4 15.gf5 Bd7+/–). Castro Couceiro,Silvia – Rey Torres,Noa, Galicia–ch (Women), 2000.

7.Nf3 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bb2 0–0 6.g3 d5 7.Bg2).

7.Nf3 Re8

8.0–0 Bf5 9.Re1 a6 10.c3 Bc5 11.d3 Qe7 12.d4 Bd6 13.Nbd2 Na5 14.Nh4 Bg4 15.Qc2 Rad8 16.Nf5 Bf5 17.Qf5 Qe6 ½–½. Behrmann,Klaus – Kern,Michael, corr, 1998.

8.0–0 Bf5 9.e3 Qe7 10.Nc3 Rad8 11.a3 Ba5 12.d4 Ne4 13.Ne4 Be4 14.c3 Bb6 15.Qe2 Qf6 16.Rfe1 a6 17.Rac1 Qg6 18.Rcd1 Qg4 19.a4 Qd7 20.Rd2 h6 21.Ba3 Na5 22.Qd1 Nc4 23.Ra2 Qf5 24.Nh4 Qe6 25.Nf3 a5 26.Ra1 Na3 27.Ra3=+ Qd6 28.Qb3 Qe7 29.Raa1 Qe6 30.Qb5 Qf5 31.Nh4 Qd7 32.Be4 de4 33.c4 Qb5 34.ab5 c5 35.bc6 bc6 36.Nf5 Kf8 37.Reb1+= Bc7 38.Rb7 +=. Psion – Psion, 4 Min/Zug, 1990.

8.0–0 Bf5 9.e3 Bg4 10.h3 Bf5 11.a3 Bc5 12.Re1 Qd6 13.Nc3 Qd7 14.g4 Be6 =.

8.0–0 Bg4 9.c3 Bf8 10.d3 d4 11.Nbd2 dc3 12.Bc3 Nd5 13.Bb2 Bb4 14.Rc1 Qe7 15.e3 Rad8 16.Nc4 b5 17.Ncd2 Ne3 18.fe3 Qe3 19.Kh1 Rd3 20.Rc6 Rd2 21.Qc1 Bf3 22.Bf3 Qd3 23.Rc7? Rb2!–+ 24.Rf7? Qd2 25.Qd2= Rd2 26.Ra7 =. Arendarski – Drygas, corr Poland, 1995.

8.0–0 Bg4 9.Nc3 Ne4 10.a3 Ba5 11.h3 Bh5 12.g4 Bg6 13.Nb1 Bb6 14.e3 Qe7 15.Ne1 Bc5 16.Qf3 Rad8 17.d4 Bd6–/+ 18.Nd3 Na5 19.Nf4–/+ Nc4 20.Bc1 c6 21.Ng6 fg6 22.Qd1 Qh4–+ 23.f4 Rd7 24.Qe2 Rde7 25.Rf3 Rf7 26.c3 b6 27.a4 a6 28.Bd2 Ref8 29.Be1 Qe7 30.Qf1 g5 31.f5 Qd7 32.Qe2 a5 33.Qa2 h5 34.Bf1=+ hg4 35.hg4 Nf6 36.Bc4= dc4 37.Qc4 Ng4 38.e4 Bh2 39.Kg2 Re8 40.Nd2 Bf4 41.Qb3 Qc7 42.e5= Ne5 43.de5 Qe5 44.Rf2 Qf5 45.Nf1 Qg4 46.Kh1 Qh3 47.Kg1= Rb8 48.Bd2 Qg4 49.Rg2 Qf5 50.Re1 b5 51.ab5 cb5 (51...cb5 52.Qa3 Ra8=). Psion – Psion, 4 Min/Zug, 1990.

5.Bc3 0–0

6.Bg2 Bc3 7.Nc3 d5 8.d4 Be6 (8...Re8!?–/+) 9.Rb1+= b6 10.Nh3 Na5 11.Nf4 Will d5 fall? 11...c6 12.e4 de4 13.Ne6 (13.Ne4? Ba2 14.Ra1 Bc4–+) 13...fe6 14.Ne4 Ne4 15.Be4 Qd6 16.0–0 Rad8 17.c3 e5 18.Qh5 g6 19.Qe5 Qe5 20.de5 Rd2 Exerts pressure on the backward pawn 21.f4 Ra2 22.Rfd1 Re2 23.Rb4 c5 24.Ra4 Kg7 (24...Re3!?+/–) 25.Rd7+– Rf7?? (better is 25...Kh8+–) 26.e6 Rd7 27.ed7 Rd2 28.Rd4!! cd4 (28...cd4 29.d8Q Decoy; 28...Rd4 29.cd4 Combination) 29.d8Q dc3 30.Qc7 Kf6 (30...Kf8+–) 31.Qc3 (31.Qc3 Ke7 32.Qd2+–) 1–0. usingprogram (1995) – franikel, kurnik, 2013.

6.Bg2 d5 7.Bb4 Nb4 8.c3 Nc6 9.d4 Bf5 10.Nd2 Re8 11.e3 Qd7 12.Ne2 Ne7 13.c4 c6 14.0–0 h6 15.Nf4 Ng6 16.Ng6 Bg6 17.Qb3 Bh5 18.cd5 cd5 19.a4 Be2 20.Rfc1 Rac8 21.a5 Rc6 22.Rc6 Qc6 23.Rb1 Ba6 24.Nf3 Qc7 25.Ra1 Rc8 26.h3 Qc2 27.Qc2 Rc2 28.Ne5 Bb5 29.Bf1 Bf1 30.Rf1 Ra2 31.Rb1 Ra5 32.Rb7 Ra1 33.Kg2 Ra2 34.Rf7 a5 35.Ra7 Ne4 36.Ng6 Rf2 37.Kg1 Ra2 38.Ne7 Kh7 39.Nd5 Ng3 40.Nb4 Ra3 41.Nc6 ½–½. marekt – crocodile, ChessWorld.net, 2004.

6.Bg2 Qe7 7.Nf3 Bc5 (7...d5!?–/+) 8.Bf6= Qf6 9.Nc3 Ne5 (9...b6!?=) 10.0–0+= Nf3 11.Bf3 c6 12.Ne4 Qe7 13.Nc5 Qc5 14.d4 Qc3 15.Re1 d5 16.e4 de4 17.Be4 Be6 18.Re3 Qa5 19.Rb1 Qc7 20.c4 White plans d5 20...Rfd8 21.d5 Bh3 (better is 21...cd5!? 22.cd5 f5+/–) 22.g4 f5?? (22...Qf4 23.Bh7 Kh7 24.Rh3 Kg8 25.Rb7 cd5 26.cd5 Rac8+–) 23.Bf5 (23.Rh3?! fe4 24.Qd4 cd5 25.cd5 Re8+/–) 23...g6 (23...Bg4 24.Qg4 cd5+–) 24.Be6 (24.Be6 Kh8 25.Qd4 Qg7 26.Qg7 Kg7 27.Rb7 Kh8 28.Rh3+–) 1–0. usingprogram (2000) – mlodykrawat, kurnik, 2013.

6.Bg2 Re8 7.Nf3 d5 8.0–0 Bd6 9.Bf6 Qf6–/+ 10.Nc3 Qe6 11.Re1 a6 12.e4 d4 13.Nd5 Qg6 14.Nh4 Qg4 15.Rb1 b5 16.e5 Re5 17.Re5 Qd1–+ 18.Rd1 Be5 19.Ne7 Ne7 20.Ba8 c5 21.Re1= Bf6 22.Nf3 h6 23.Ne5 Bf5 24.Bb7 a5 25.Be4 Be6 26.Nd3 Ba2 27.Nc5 a4 28.Bd3+/– Bd5 29.Bb5 a3 30.d3 Nf5 31.Bc4 Bc4 32.dc4 Nd6= 33.Nd7 Bg5 34.c5 Bd2+= 35.Ra1 Nc4 36.c6 Ba5 37.Kf1 f5 38.Ke2 Bc7 39.Kd3+– Na5 40.Kd4 Nc6 41.Kc5 Ne7 42.Ra3 Kf7 43.Kc4 Nc6 44.Nc5 g6 45.f4 Ne7 46.Ra6 Nc8 47.Rc6 Nd6 48.Kd5 Ne8 49.Nd7 Kg7 50.c4 Bd8 51.Ne5 Nf6 52.Kd4 g5 53.Rc8 Ba5 54.fg5 hg5 55.c5 Ne4 56.c6 Nd6 57.Ra8 Bc7 58.Kd5 Nb5 59.Re8 g4 60.Ke6 Nd4 61.Kd7 Nb5 62.Nd3 Kf7 63.Re1 Kf6 64.Rb1 f4 65.Nf4 Na3 66.Kc7 Nb1 67.Kd8 Ke5 68.c7 Nc3 1–0. Zemitis,V – Fritz3, USA, 1995.

5.Bc3 Bc3

6.Nc3 d5

7.Bg2 d4 =+.

5.Bc3 Bc5

6.d4 Bb4 7.a3 Bc3 8.Nc3 d5 9.Bg2 0–0 10.e3 Na5 11.Nf3 Nc4 12.Ne5 Ne5 13.de5 d5 becomes the focus of attention 13...Ng4 14.Qd5 Qe7 15.Qe4 Re8 16.0–0 Qe5 17.Qe5 Ne5 18.Nd5 Rb8 19.Nc7 Rd8 20.Nb5 Rd2 (20...a6 21.Nd4+/–) 21.Rfd1+– (21.Rfd1 Rd1 22.Rd1+–) 1–0. marekt – LSGUK, ChessWorld.net, 2013.

6.Bg2 d5 7.d4 Bb4 (7...Bd6 8.Nf3+=) 8.Bb4 Nb4 9.a3 Na6 10.Nf3 c6 11.0–0 0–0 12.Qd3 Nc7 13.Nc3 b6 14.Ne5 Re8 (14...Qd6!?+=) 15.Nc6+/– Qd6 16.Ne5 h5 17.Nb5 Nb5 18.Qb5 a5 (18...Bg4!?+/–) 19.Rab1+– Ba6 20.Qb6 Qb6 21.Rb6 Be2 22.Re1 Bc4 23.Re3 Reb8 24.Nc4 dc4 25.Ba8 Rb6 26.Rc3 Rb8 27.Bf3 Rc8 28.Be2 Ne4 29.Rc4 Rc4 30.Bc4 Nd2 31.Be2 g6 32.Kg2 Kf8 33.a4 Ke7 34.Bb5 Kd6 35.f4 f6 (35...Kd5 36.Be8 Ke6 37.Kf2+–) 36.Kf2 g5 (36...Ne4 37.Ke3 Nc3+–) 37.Ke3 Nb1 38.fg5 fg5 (38...Nc3 39.g6 Ke7 40.Kd3+–) 39.Kd3 Na3 40.c4 h4 (40...Ke6 41.Kc3 Nb1 42.Kc2 Na3 43.Kb2 Nc4 44.Bc4 Kf5 45.Kc3+–) 41.gh4 gh4 42.Kc3 Nb1 43.Kc2 Na3 44.Kb2 Nb5 (44...Nc4 45.Bc4 Kc6+–) 45.ab5 1–0. usingprogram (2020) – agusiamalutka, kurnik, 2013.

5.Bc3 Be7

6.d4 d5 7.Bg2 Bf5 8.Nf3 0–0 9.0–0 Qd7 10.Re1 Ne4 11.Bb2 Rae8 12.Nbd2 Bf6 13.a3 a6 14.Rb1 b5 15.e3 Bg4 16.Qc1 Bf3 17.Bf3 Ng5 18.Bg2 Nh3 19.Kf1 Re7 20.Qd1 Ng5 21.Nb3 Ne4 22.f3 Nd6 23.Nc5 Qe8 24.e4 de4 25.fe4 Nc4 26.Bc3 Na3 27.Ra1 b4 28.e5 Bg5 29.Bb4 Nc4 30.Bc6 Qc6 31.Ne4 Qb5 32.Qd3 Qb4 1–0. aspasio – kidochess, ICC, 1999.

6.Nf3 0–0 7.Bg2 d5 =+.

5.Nf3 d6

6.Bb2 0–0 7.Bg2 Na5 8.a3 Bc5 9.d4 Bb6 10.Nbd2 Be6 11.0–0 c5 12.c3 Bd5 13.Qc2 cd4=+ 14.cd4 Qd7 15.e3 Rac8=+ 16.Qd3 Nc4 17.Bc3 Rfe8 18.Rfc1= Ne4 19.Nc4 Bc4=+ 20.Qd1 d5 21.Ne5= Qf5 22.Qf3 Qe6 23.Nc4 Rc4 24.Bb4 Rec8 25.Rc4 Rc4 26.Qe2 f5 27.Be4 Qe4 28.Rd1 Bd4 29.Qd2 Bc5 30.Qd5 Qd5 31.Rd5 Bb4 32.ab4 g6?? 33.b5 Rb4 34.Rd8+/– Kf7 35.Rd7 Ke6 36.Rb7 h5 37.Ra7 Rb5 38.Ra6 Kf7 39.h4 Re5 40.Kg2 Re6? 41.Re6+– Ke6 42.f3 Ke5 43.Kf2 Kd5 44.Ke2 Kc4 45.e4 Kd4 46.ef5 gf5 47.Kd2 Kd5 48.Kd3 Ke5 49.Ke3+– f4 50.Kf2 fg3 51.Kg3 Kf5 52.f4?? Ke4= 53.f5 Kf5 54.Kf3 ½–½. carrafurca (2190) – rych, net–chess.com, 2005.

5.Nf3 Ne5

6.Ne5 d5 7.c3 Bd6 8.Qa4 c6 9.d4 0–0 10.Nd2 Qe7 11.Nd3 Bf5 12.e3 Rfe8 13.Be2 Ng4 14.Rc1? Ne3! –+.

6.Ne5 d6 7.Nd3 c5 8.Bg2 0–0 9.0–0 Re8 10.c3 Ba5=+ 11.Re1 Bf5 12.Bb7 Rb8=+ 13.Bg2 Qe7 14.Na3= Qd7 15.Nc4+= Bd3 16.ed3+/– Re1 17.Qe1 Bc7 18.a4 d5 19.Ne3 Re8 20.Qd1 d4+= 21.Nc4 Nd5 22.Qb3 Rb8 23.Qa2 Nb6 24.Rb1 Qa4= 25.Qa4 Na4 26.Rb8 Bb8 27.Bc6 Nb6 28.Nb6 ab6 29.f4 f6 30.Kf2 Kf7 31.Kf3 Ke6 32.h4 dc3 33.dc3 Kd6 34.Bb5 Ke6 35.g4 h6 36.h5 f5 37.g5 Bd6 38.Bc4 Ke7 39.Bg8 b5 40.Ke3 hg5 41.fg5 f4 42.Ke4 b4 43.cb4 cb4 44.h6 gh6 45.gh6 Kf6 46.d4 Kg6 47.h7 Kg7 48.Kd3 Be7 49.d5 Bd6 50.Kd2 Be5 51.Kd3 b3. coloplayah (2155) – enco (1750), net–chess.com, 2007.

6.Ne5 d6 7.Nf3 Bg4 8.Bg2 Qd7 9.0–0 Bh3 10.c4 Bg2 11.Kg2 0–0 12.Qb3 Ba5 13.Qb7 a6 14.Qb3= Rfe8 15.e3 Qc6 16.d3 Rab8 17.Qc2 Ng4 18.Qe2 Bb6= 19.d4?? Bd4!–+ 20.Qd3 0–1. Quilghini,Bruno – Have,Didier (1940), Porticcio op 6th, 2005.

6.Ne5 Qe7 7.Nd3 d5 8.Bg2 Bd6–/+ 9.Nc3 c6 10.0–0 Bf5 11.e3 h5 12.h4 g5 13.hg5 Ne4 14.Ne4 de4 15.Nf4 h4 16.d3 ed3–+ 17.e4 Bd7 18.Qd3 0–0–0 19.Rab1 hg3 20.Qg3 Rdg8 21.Rfe1 Qg5 22.Qg5 Rg5 23.e5 Be5 24.Nd3 Bh3 25.Re5 Rg2 26.Kf1 Rg5 27.Ke2 Re5 28.Ne5 0–1. Marr33 (2225) – SandSpider (2600), Rated game, 3m + 0s, 2010.

4.g3 d5

5.c4 Qe7 6.Bb2 dc4 7.a3 –/+.

5.Nf3 0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 0–0 5.g3 d5).

5.Nf3 Nc6 6.Bf4 0–0 7.Bg2 Bf5 =+.

5.Bg2 c6 6.Nf3 Bf5 (6...Nbd7 7.Bc3 Bd6 8.0–0=) 7.Bf4 Qe7 8.Nc3 Nbd7 9.0–0 0–0 10.Nd4 Bg6 11.Rb1 Nb6 12.Bg5 h6 13.Bf6 Qf6?? (better is 13...gf6 14.e3 Rfe8+=) 14.Rb4+– c5 15.Rb6! ab6 (15...ab6 16.Ndb5 Combination; 15...Qb6 16.Nd5 Decoy) 16.Ndb5 Ra5? (16...d4 17.Nd5 Qg5+–) 17.Bd5 Qe5 (17...Bf5 18.Bb7 Rd8 19.a4+–) 18.f4 Qb8 (18...Qh5 19.Nd6+–) 19.e4 Kh8 20.f5 Bh7 21.f6 Qe5 22.fg7 Kg7 23.Qg4 Kh8 24.Qd7 Bg6 (24...Raa8 25.Qb7 Rab8 26.Qc6+–) 25.Qb7 h5 (25...Qb8 26.Qc6 Qc8 27.Nc7+–) 26.Qb6 Raa8 27.Ba8 Ra8 28.Qc6 Rd8 29.d3 h4 30.gh4 Kg7 (30...Rg8 31.Kh1 Qg7 32.Qf6+– (32.Qc5?? Be4 33.Ne4 Qg2)) 31.Nd5 Rh8 (31...Rg8 32.Nd6 Kh7 33.Kh1+–) 32.Qc5 Rh4 33.Qd4 Qd4 (33...f6 34.Qe5 fe5 35.a4 Rg4 36.Kf2+–) 34.Nd4 1–0. usingprogram (2005) – mlodykrawat, kurnik, 2013.

5.Bg2 Nc6 6.Bf4 Nh5 7.c3 Nf4 –/+.

5.Bg2 Nbd7 6.Bf4 0–0 7.c3 Be7 =+.

5.Bg2 Be6 6.Nc3 0–0 7.Rb1 Bc5 8.e3 Nc6 9.Bf6+= Qf6 10.Nd5 Qe5 11.Nc3 Rad8 12.Nf3 Qh5+= 13.Nh4 Qh6? 14.Rb7+– Ne5 15.Rb5 Bd6 16.d4 Bg4 17.Qc1 Nc4+/– 18.0–0 Ba3 19.Qe1 a6 20.Rb1 c5 21.Nd5 cd4 22.ed4 Nd2 23.Rb6 f6 24.Ne3 Nf1 25.Ng4 Qd2 26.Qe6 Kh8 27.Bf1 Qd4 28.Bd3 f5 29.Bf5 Rfe8?? 30.Ng6! hg6 31.Qg6 (31.Qg6 Re1 32.Kg2 Qd5 33.Kh3 Qf5 34.Qf5+–) 1–0. Blankenberg,Bruno – Schmidt,D, corr, 1985.

5.a3 Bc5

6.d4 Nc6 7.Nf3 Ne5 –/+.

5.a3 Be7

6.Nf3 Nc6 7.Bb2 0–0 =+.

5.c4 0–0

6.e3 dc4 7.Bc4 Nbd7 8.Bc3 Bc3 9.Nc3 b6 10.d4=+ Bb7 11.Nf3 c5 12.d5= a6 13.a4 Re8 14.0–0= Ne4 15.Ne4 Re4 16.Qd3 Nf6 17.Nd2 Re7 18.e4 Kh8 19.d6+= Re8 20.Rfe1 Qd7 21.f3+/– Ng8 22.Rab1 b5 23.ab5+– ab5 24.Rb5 Rec8 25.Reb1 Ba6 26.Rb6 Bc4 27.Nc4 f6 28.R6b2 Rc6 29.Qd5 Rd8 30.Rb7 Qe8 31.Ra7 Rcd6 32.Nd6 (32…Rd6 33.Qd6+–) 1–0. Baerschneider – Fengsrud,Roy, corr 3GMM–09, 1996.

6.e3 Nc6 7.Bc3 –/+.

5.Bg2 0–0

6.Nf3 Nc6 7.Bb2 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.Nf3 Nc6 5.Bb2 0–0 6.g3 d5 7.Bg2).

6.Nf3 Re8 7.Bb2 Bf8 8.0–0 Bg4 9.d3 Nbd7 10.Nbd2= Qe7 11.Re1 Rad8 12.a4 Qc5 13.Nb3 Qb6 14.h3 Bh5 15.g4 Bg6 16.Nh4 c5 17.Ng6+= hg6 18.a5 Qd6 19.Ba3 b6 20.Qd2 Qc7 21.Qg5 Re5 22.Qh4 Rde8 23.e3 c4 24.d4 R5e6 25.ab6 ab6 26.Nd2+= b5 27.Bf8 Rf8 28.c3 Ree8 29.Reb1 Rb8 30.Rb4 Qc6+/– 31.Rab1 Rb6 32.g5 Nh5 33.e4 Ra8 34.ed5 Qd6 35.Rb5 Rb5 36.Rb5 Ra1 37.Bf1 Nb6 38.Rc5 Qf4? 39.Qf4 Nf4 40.Nc4 Nbd5+/– 41.Ne3 Ne2? 42.Kg2 Ndf4? 43.Kf3 Ra2 44.h4 (44.Rc8!? Kh7+–). jammboy – WoodPusher83, ChessWorld.net, 2007.

4.g3 d6

5.Bb2 Bd7 6.Bg2 Bc6 7.Nf3 Nbd7 8.0–0 Bc5 (8...0–0 9.c3 Ba5 10.Na3+=) 9.d4 Bb6 10.c4 Bf3 11.Bf3 c6 12.Nc3 Qc7 13.Bc1 Qc8 (13...0–0 14.Bf4 Ba5 15.Qd3+=) 14.Bf4+/– Bc7 15.a4 d5 (15...0–0!?+=) 16.Bc7+/– Qc7 17.cd5 Nb6 (17...cd5 18.Nd5 Nd5 19.Bd5+/–) 18.e4 (18.Rc1 0–0+–) 18...cd5 19.Rc1 (19.Nd5?! Nbd5 20.ed5 0–0+=) 19...de4 20.Ne4 (20.Be4?! Qd7 21.a5 Ne4 22.Ne4 Na4+/–) 20...Qd8 21.a5 Nbd5 (21...Ne4 22.Be4 Nd7 23.Bb7+–) 22.Nf6 Nf6 23.Re1 Kf8 24.a6 ba6 (24...Rb8 25.ab7 g5+–) 25.Ba8 Qa8 (25...g6 26.Bc6+–) 26.Qf3!! Qd8 (26...Qf3 27.Rc8 Mate attack) 27.Qb7 (27.Qa3!? Kg8 28.Qa6 g5+–) 27...g6 (27...g5 28.Rc8 Kg7 29.Rd8 Rd8 30.Re7+–) 28.Rc8 (28.Rc8 Qc8 29.Qc8 Kg7 30.Qa6+–) 1–0. marekt – raymac, ChessWorld.net, 2016.

5.Bc3 Qe7! 6.Bb4 Qe4.

5.Bb2 0–0

6.Nf3 Nc6 7.Bg2 Bg4 8.0–0 d5 9.Nc3 d4 (9...Ne4 10.h3 Bc3 11.Bc3 Bf3 12.Bf3+=) 10.Nb5= Bc5 11.e3 a6 (11...de3 12.de3 Qe7 13.h3=) 12.Nbd4+= (worse is 12.ed4 Bb6 13.Na3 Nd4=) 12...Nd4 13.ed4 Bf3 14.Bf3 Bd4 15.c3 Bc5 16.d4 (worse is 16.Bb7 Rb8 17.Qf3 c6 (worse is 17...Qd2 18.Bc1 Qd6 19.Bg5+=) 18.Qc6 Qe7 19.Ba6 Rb6+=) 16...Bd6 17.c4 (worse is 17.Bb7 Rb8 18.Qf3 c6 19.Qc6 Qe7 20.Ba6 Rb2=) 17...c5 (better is 17...Rb8!?+=) 18.Rb1 Rb8 19.dc5 Bc5 20.Be5 Ra8 21.Rb7 Qa5 (21...Re8 22.Qd8 Rad8 23.Bf6 gf6 24.Bd5+–) 22.Bf6 gf6 23.Be4 f5 (23...Rfb8 24.Rd7 Ra7 25.Bh7 Kf8 26.Rd5+–) 24.Bf5 Qc3 25.Rc7 (25.Qh5 Qg7+–) 25...Bb6 (25...Bb4 26.Qb1 h6 27.Be6+–) 26.Rc6 Bd4 (26...Rab8+–) 27.Qh5 (27.Qh5 Rfe8 28.Rc7 Bf2 29.Rf2 Re1 30.Kg2+–) 1–0. Fritz 11 – sundayexpres, internet, 2013.

6.Bg2 c6 7.Nf3 Qe7 =+.

6.Bg2 c6 7.Nf3 Re8 8.0–0 =+.

6.Bg2 c6 7.Nf3 Bg4 8.0–0 Nbd7 9.c4 Ba5 10.d4 Re8=+ 11.Nc3 Bc7 12.e3 h6 13.Qb3 Rb8 14.Rad1 d5 15.cd5+= cd5 16.Rc1 Nb6 17.Nb5 Nc4 18.Nc7 Qc7 19.Ne5 Be6 20.e4 b5 21.ed5 Bd5 22.Bd5 Nd5 23.Ba3 Qa5 24.Bc5 Ne5 25.de5 Re5 26.Bd6+/– (26.Bd6 Rbe8 27.Be5 Re5 28.Rc5+–) 1–0. Wall,Bill – Wallace,Gary, corr, 2006.

6.Bg2 Nc6 7.a3 Ba5 8.Nf3 Bg4 9.h3. marekt – drexsau, ChessWorld.net, 2004.

6.Bg2 Nbd7 7.e3 Ne5 8.Ne2 Neg4 9.0–0= Bc5 10.d4 Bb6 11.d5 Bd7 12.c4 c6 13.Nbc3= cd5 14.Nd5+= Nd5 15.Bd5 Bc6 16.Nf4 Qg5 17.Ne6 fe6 18.Be6+= Kh8 19.Bg4 Rf6?? 20.Bf6+– Qf6 21.Be2 (21…Bc5 22.Qd3+–) 1–0. 5352 – joopy, Live Game Caissa's Web, 2004.

6.Bg2 Re8 7.c3 Ba5 8.d4 d5 9.Nf3 Bf5 10.0–0 Nbd7 11.Nbd2 c6 12.Rc1 Qe7 13.Re1 b5 14.Nh4 Bg4 15.Qc2 Bc7 16.Rb1 Nb6 17.Nf5 Qe6–/+ 18.Ne3 Bh3 19.Bf3 h5 20.Bg2 Bg2 21.Ng2 Ne4 22.Ne4 Qe4 23.Qe4 Re4 24.Ne3 Rae8 25.Bc1 ½–½. Behrmann,Klaus – Guaimare,Carlos, corr, 1998.

5.Bb2 Nc6

6.c3 Bc5 7.Bg2 Ng4 8.Na3?? (better is 8.d4 Bb6 9.Nf3=) 8...Qf6 (8...Nf2 9.Qa4–+) 9.Nf3 (9.f4 Nf2 10.Qa4 0–0–+) 9...Nf2 (9...Bf2?! 10.Kf1 Bc5 11.Nb5–+) 10.Rf1 (10.Qb3 Nh1 11.Bh1–+) 10...Nd1 11.Rd1 Ba3 12.Ba1 (12.Ba3 Qg6–+) 12...d5 (12...Qg6!? 13.d3–+) 13.Nd4 Qh6 14.Nb5 Bd6 (better is 14...Qh2!? 15.Nc7 Kf8 16.Na8 Qg2 17.d4 Qg3 18.Kd2–+) 15.Nd6 Qd6 16.Rf3 Ne5 17.Re3 0–0 18.Kf1 Ng4 19.Rd3 Bf5 (better is 19...Qf6 20.Bf3 Nh2 21.Kf2 Qb6 22.Rd4 Nf3 23.Kf3–+) 20.Rd5 Nh2 (20...Qe6 21.Rd4–+) 21.Kg1 Qh6 (better is 21...Qe6 22.Rf5 Qf5 23.Kh2 Qh5 24.Kg1 Qe2 25.Rf1–+) 22.Rf5 Ng4 23.e4 (23.Rf3 Rad8 24.d4–+) 23...Qh1 (23...Rad8 24.Rd5 Qh2 25.Kf1 Rd5 26.d4 Rb5 27.Re1 Qg3 28.Ke2 Qe3 29.Kd1 Qd3 30.Kc1 Rb1) 24.Bh1+– g6 (24...Rfd8 25.Bf3 Rd3 26.Kg2+– (26.Bg4?! Rg3 27.Kf2 Rg4+–)) 25.Rf4 Rad8 (25...h5+–) 26.Rg4 a5 (26...Rd3 27.Kf2+–) 27.a4 b6 (27...Rd3 28.e5 Rfd8 29.Bb7 Rd2 30.Rd2 Rd2 31.Rf4+–) 28.e5 Rd3 (28...h5 29.Rc4 Rd7+–) 29.Bd5! Rd5 30.d4 f5 31.Rf4 c5 32.Bb2 g5 33.Rff1 c4 34.Bc1 b5 35.ab5 Rb5 36.Bg5 a4 37.Ra1 Rb3 38.Rf3 a3 39.Be7 Rf7 40.Bf6 Ra7 41.e6 a2 42.Rff1 Rc3 43.Be5 Re3 44.Kf2 Re4 45.Rh1 c3 46.Kf3 Rg4 47.Bf4 Ra3 48.Ke2 c2 49.Rhc1 h5 50.d5 h4 51.Kf2 hg3+= 52.Kg2 Rf4= 53.Rc2 Rf2 54.Rf2 gf2 55.Kf2 Ra6+= 56.Ke3 Kf8 57.Kf4= Ra5?? 58.d6+– Ra7? 59.Kf5 Ke8 60.Kf6 Ra6 61.d7 Kd8 62.Kf7 1–0. boo9154 – sosg, Gameknot.com, 2002.

6.Nf3 0–0 7.Bg2 Re8 8.a3 Ba5 9.0–0 Qe7 10.e3 Bg4 11.h3 Be6 12.d3 d5 13.Nbd2 Rad8 14.Nb3 Bb6 15.Re1 a6 16.Qe2 Bf5 17.Qd2 Ba7 18.Kh2 Bg6 19.Nh4 Qe6 20.Ng6 fg6 21.Kg1 Qe7 22.Rad1 Bb6 23.Qc1 Na5 24.Nd2 Kh8 25.Qa1 Kg8 26.c4 dc4 27.Nc4 Nc4 28.Qa2 Ba5 Attacks the isolani on a3 29.Qc4 Kh8 30.Re2 b5 31.Qc6 Rd6 32.Qc2 c5 33.e4 Rdd8 34.e5 Nd5 35.e6 Rd6 36.d4 c4= 37.Re5 Qd8 38.Qe4 c3 39.Ba1 Ne7 40.d5 Nc6+= 41.Rc1 Ne5 42.Qe5 Qe7 43.Rc3 Bc3+= 44.Bc3 Qc7 45.h4 h6 46.Be4 Re7 47.Kg2 Qc4 48.Qd6 Qe4 49.Kh2 Rb7 50.Qc6?? Re7?? 51.Bb4+– Qf5 52.Bc5 Kh7 53.Qa6 Re8 54.Qc6 Rh8 55.e7 Qe4 56.Qd7 Qe5 57.Qd8 g5 58.h5 g4+/– 59.Bb6 Qh5 60.Kg1 Re8 61.d6 Qf7 62.Bc5 (62.Bc5 Qg8 63.Qc7+–) 1–0. Wlasow,Andrey (2220) – Kocandrle,Jaroslav (2085), IECG, 2006.

6.Bg2 Be6 7.Nf3 0–0 8.0–0 Qd7 9.Ng5 Bf5 10.e4 Bg6 11.Re1 Rfe8 12.Nc3 h6–/+ 13.Nh3 Ba5 14.d3 Bb6 15.Rf1 Nd4 16.Nf4+= Rad8 17.Ng6 fg6 18.a4 a6 19.a5+= Ba7 20.Re1 Nh7 21.Ne2 Nc6 22.Nf4 Qf7 23.Rf1 Nd4 24.Ra4 Ne6 25.Ne6 Qe6 26.Qd2 Rf8 27.Qc3 Rd7 28.e5 Ng5 29.Bb7 Qh3?? 30.Rh4 Qe6 31.ed6 cd6 32.Ba6?? Nf3–+ 33.Kh1 Nh4 34.gh4–/+ Bf2 35.Bc4?? (better is 35.Qc6 Kh8 36.Qe4=+). Acevedo,Daiana – Celi,Andrea, Pan American–ch U12 Girls, 1999.

6.Bg2 0–0

7.Nf3 Re8 8.0–0 Ne5 9.Ne5 de5 10.c3 Bf8 11.d4 ed4 12.cd4 c6 13.Nc3 Bg4 14.h3 Be6 15.e4 Qd7 16.d5 Bh3–/+ 17.dc6 bc6 18.Qa4 Rab8 19.Rab1 Bg2–+ 20.Kg2 Rb4 21.Qc2 Ne4 22.Ne4 Rbe4 23.Rfd1 Qe6 24.a4 Re2 25.Qc3 Qa2 26.a5 Rb8 (26...Rb8 27.Qf3 Rbb2 28.Rb2 Rb2–+) 0–1. jiikoo – marekt, internet, 2005.

7.Nf3 Re8 8.0–0 Qe7 9.a3 Bc5 10.Nc3 =+.

5.Bb2 Bf5

6.c3 Bc5 7.Bg2 d5 8.d3 c6 9.Nd2? Nbd7?? 10.e3? Ne5–+ 11.d4 Nd3 12.Ke2 Nb2 13.Qb3 Bd6 14.Qb2 b6 15.Bh3 Qd7 16.Bf5 Qf5 17.Ngf3 0–0 18.Rag1 Ne4 19.Ne4 Qe4 20.h4 f5 21.h5 h6 22.Nh4 f4 23.gf4 Rf4 24.Ng6 Qf3 25.Kf1?? Qd1 26.Kg2 Rg4 27.Kh3 Rg1 28.Rg1–+ Qg1 29.f4 Qe3 30.Kg4 Re8 31.Qb1 Re4 32.Qh1 Bf4 33.Nf4 Rf4# 0–1. audrey – TPbIHTPABA, Live Game Caissa's Web, 2004.

5.Bc3 Bc3

6.Nc3 Nc6 7.e3 0–0 8.Bg2 Bd7 (8...Bg4 9.Nge2=) 9.Nge2 Rb8 10.0–0 Bf5 11.Rb1 Qd7 12.Nf4 a5 13.d4 Nb4 (13...Rfe8!?+=) 14.e4+/– Bg4 (14...Bg6!?+/–) 15.f3+– Bh5 16.a3 Nc6 17.Ncd5 Nd5?! (17...Bg6 18.Nf6 gf6+–) 18.ed5 (18.Nh5 Nc3 19.Qd2 Nb1 20.Rb1 f5–/+; 18.Nd5?! f6+=) 18...Ne7 19.Nh5 Qf5 (19...Nd5 20.Qd2 Qf5 21.g4+–) 20.Nf4 (20.f4 c6 21.dc6 Nc6+–) 20...Nd5 21.Rb5 c6 (21...c5 22.Bh3 Qg5 23.Nd5 Qd5 24.dc5+–) 22.Nd5 (worse is 22.Ra5 b5 23.Nd5 Qd5+–) 22...cd5 23.f4 Rbc8 24.Bd5 Rc2 (24...Qc2 25.Rb7 Qc3+–) 25.Bf7! Rf7 (25...Qf7 26.Qc2 Deflection (26.Qc2 Overloading); 25...Rf7 26.Rf5 Discovered attack; 25...Kf7 26.Rf5 Double attack (26.Rf5 Discovered attack)) 26.Rf5 Rf5 27.Qc2 Rd5 28.Qc8 Kf7 29.Qb7 Ke6 (29...Kf6 30.Qd5 a4 31.Qd6 Kf5 32.Re1 Kg4 33.Qe6 Kh5 34.Re5 g5 35.Rg5) 30.Re1 Kf5 (30...Re5 31.fe5 h5 32.d5 Kf5 33.Qg7 a4 34.ed6 h4 35.Re5) 31.Qd5 1–0. usingprogram (2005) – queen98, kurnik, 2013.

6.Nc3 d5 7.Bg2 0–0 =+.

5.Bc3 Nc6

6.Bg2 Bc3 7.Nc3 0–0 =+.

5.Bf6 Qf6

6.c3 0–0 7.e3 Nc6 =+.

4.Bg3 0–0

5.e3 d6 6.Bh4 c6 7.c3 Ba5 8.Bd3 Nbd7 9.Qc2 g6 10.Bg5 Nc5 11.Bh6 Nd3 (11...Nd3 12.Qd3 Bf5–/+) 0–1. pinecrest1981 – Intenz01, Live Game Caissa's Web, 2005.

5.c3 Be7

6.d4 c5 7.e3 cd4 8.ed4 Re8 9.Be2 Bf8 10.Nf3 Qe7 11.a4 Qe6 12.Qc2 b6 13.Be5= d6 14.Bf6 Qf6 15.0–0 Bb7 16.Bb5 Be4 17.Qa2 Re6 18.Nbd2 Bb7 19.Rfe1 Re1 20.Re1 Nc6 21.Ne4 Qg6 22.Neg5 Ne7+= 23.Bc4 d5= 24.Bb3 h6 25.Bc2+= Qf6 26.Nh7 Qd6 27.Ne5 Nc6= 28.Nf8 Rf8 29.Bb1 Ne5 30.Re5 Rc8 31.h4 g6= 32.h5 Rc3=+ 33.Qd2 Qa3 34.Bc2 g5 35.Re8 Kg7=+ 36.Qe1 Rc6 37.Re7 Bc8 38.Qe5 Rf6 39.Rc7 Be6=+ 40.Kh2 Qc1 41.Bf5 Qf4 42.Qf4 gf4 43.Be6 Re6 44.f3 a5 45.Kh3 Re2 46.Rd7 Ra2 47.Rd5 Ra4 48.Rd8 Rb4 49.d5 a4 50.d6 Kf6 51.Rh8 Rd4 52.d7 Rd7 53.Rh6 Kg5 54.Rb6 Ra7 55.g4 fg3! 56.h6 f6 57.Kg3 Kh6 58.Rf6–/+ Kg5 59.Rb6 a3–+ 60.Rb1 Kf5 61.f4 Ke4 62.Re1 Kf5 63.Kf3 Rb7 64.Re5= Kf6 65.Ra5 Rb3 66.Kg4 ½–½. Dergatschova Daus,Anna (2225) – Sebag,Marie (2280), BL, 2002.

4.Bg3 d5

5.c3 Bc5 6.Nf3 Bg4 7.Ne5 Ne4?? (Better is 7...Bf5=+) 8.Ng4+– h5 9.d4 (9.d3 Ng3 10.hg3 d4+–) 9...Ng3? (Better is 9...hg4 10.dc5 Ng3 11.fg3 Qg5+–) 10.hg3 Bd6 11.Ne3 Qg5 12.Qb3 b6 13.Nd5 Qc1 14.Qd1 Qb2 15.Nd2 c6 16.Rb1 Qa2 17.Ne4 Qd5+= 18.Nd6 Qd6 19.e4 f6 20.Rh5 Rh5 21.Qh5 Kd8 22.Qh8 Kc7 23.Qg7 Nd7 24.Be2 Qa3 25.Kf1 Qc3 26.Kg1?? Qc2= 27.Re1 Qe4 28.Kh2 a5 29.Bg4= Qd4?? 30.Rd1?? Rh8=+ 31.Kg1 Rh7 32.Qh7 Qg4 33.Rf1 a4 34.Qh4 Qh4 35.gh4 b5 36.h5 a3?? 37.g4?? b4–+ 38.Ra1 c5 39.h6 Nf8 40.f4 Nh7 41.Kg2 c4 42.Kf2 c3 43.Ke2 c2?? 44.Kd2+– b3 45.Ra3 b2 46.Kc2 (46...Kd8 47.Ra8 Ke7 48.Ra7 Kf8 49.Rh7+–) 1–0. pinecrest1981 – craig1212, Live Game Caissa's Web, 2004.

5.f3 c6 6.c3 Bc5 7.d4=+ Bd6 8.Bd6 Nbd7?? 9.Nd2 Nb6 10.Be5 Nh5 11.e3 f6 12.Bg3 0–0 13.Bd3 h6 14.Ne2 f5 15.f4 Nd7 16.Qc2 Ndf6 17.Bf5 a5 18.Bh4 g5 19.fg5 Ne8 20.Bh7 Kg7 21.gh6 Kh6 22.Qg6# 1–0. theblizzard – crome, ChessWorld.net, 2005.

5.Nf3 =+.

5.c3 Bd6

6.Bd6 Qd6 7.Nf3 0–0 8.Nd4 (8.d4 Bf5=+) 8...c5 9.Nb3 Nc6 10.Na3 a6 11.e3? (11.Nc2 d4–/+) 11...Bg4 12.Be2 Bf5 13.Nc2–/+ Ne5 14.d4 cd4 15.Ncd4 Bg6 16.0–0 Neg4?? 17.Nf3 Ne4 18.Qd4 Rac8 19.Rac1 b5 20.Na5 Rfe8 21.a4 ba4 22.Qa4 Nd2 23.Qg4+/– Nf1 24.Kf1?? Qa3–/+ 25.Rd1 Qa5 26.Ne5? Qc3 27.Rd5?? Qa1 28.Bd1 Bc2 29.Nf7? Bd1 30.Nh6= Kf8?? 31.Qf4 Qf6+/– 32.Qb4 Re7 33.Rd7?? gh6 34.Rd1 Qc3 35.Qf4?? Rf7 36.Qh6 Kg8 37.g4 Qf6 38.Qf6 Rf6 39.f4 a5 40.g5 Ra6 41.Ra1 Rc2 42.Kg1 a4 43.h4 a3 44.Kf1 a2 45.Ke1 Rh2 46.g6 Rh1 47.Kd2 Ra1 48.f5 Rh1 49.gh7 0–1. pinecrest1981 – tuvi, Live Game Caissa's Web, 2004.

4.h3 Nc6

5.Bb2+= 0–0 6.Nf3 d5 7.e3 Bf5 (7...Ne4 8.Be2+=) 8.Be2+= h6 9.0–0 Re8 10.d4 Nb8 (10...Bd6!?+=) 11.c4= c6 (11...Nc6!?=) 12.Qb3+= Qe7 13.Nc3 dc4 14.Bc4 Bd6 (14...Bc3!? 15.Bc3 b5+=) 15.Ne5+/– Be5 16.de5 Ne4? (better is 16...b5 17.Bb5 cb5 18.ef6 Qf6+/–) 17.Rad1?? (better is 17.Ne4 Be4 18.Ba3+–) 17...b5 (17...Nc5 18.Qa3 Nbd7 19.e4+=) 18.Ne4+= Be4 19.Bd3 Bd5 20.Qc3 Ba2 21.e6 f6 22.Bg6 Rc8 23.Bf7 (23.Ba3 c5 24.Be4 Nc6 25.Qc5 Qe6+=) 23...Kh8 24.Ba3 (24.Qa3 Qa3 25.Ba3 Na6=) 24...c5= 25.Bc5 Rc5 (25...Qc5?? 26.Qc5 Rc5 27.Rd8 Kh7 28.Bg8 Kg6 29.e7+–) 26.Rd8 (26.Qd2 Bd5 27.e4+/–) 26...Qd8 27.Qc5 Nd7 (better is 27...Na6!? 28.Qa3 Bc4–/+) 28.Qa3+= Be6 29.Be6 Ne5 30.Qb3 (30.Qa6 Qb6 31.Qb6 ab6=) 30...Qd3 31.Qb4 (31.Qd3!? Nd3 32.Rd1–/+) 31...a5 32.Qe7 Qd8 33.Qc5 Rb8 Black prepares the advance b4 34.Bf5 Qb6 (34...Qf8 35.Qf8 Rf8 36.Rb1–/+) 35.Qe7 Qd8 36.Qc5 b4 (better is 36...Qf8 37.Qf8 Rf8–/+) 37.Bb1? (37.f4 Nd7 38.Bd7 Qd7 39.Qa5–+) 37...Rc8 (better is 37...b3!?–+) 38.Qb5–/+ Rb8 39.Qc5 b3 40.f4 Nf7 (40...Rc8 41.Qa3 Nc4 42.Qb3–+) 41.Qa7 (41.Bg6!? Kg8 42.Rb1–/+) 41...Kg8–+ 42.Bg6 Nh8 43.Bf5 b2 44.Be6 Kf8 45.Ba2 Qb6 46.Qd7 Rd8 47.Qa4 Qe3 48.Kh1 Qc3 49.Rb1? (49.Qb5 Qb4 50.Qc6–+) 49...Rd4 50.Qb5 Qc1 51.Kh2 Qf4 52.Kh1 Qc1 53.Kh2 Qc7 54.Kh1 Rd2 (better is 54...Rb4 55.Qd5 Nf7–+) 55.Qb3 (55.Re1!? Rd7 56.Qb2–/+) 55...Nf7–+ 56.Qe3?? (better is 56.Rb2 Rb2 57.Qb2–+) 56...Rc2 (better is 56...Qc1! 57.Qe1 Qe1 58.Re1–+) 57.Qa3 (57.Re1 g5–+) 57...Kg8 (better is 57...Qd6 58.Qe3 Qc6–+) 58.Kg1 (58.Rg1–+) 58...Rc1 59.Kf2 Qc2 60.Kg3 Rb1 61.Qe7 Qc3 (61...Qd3 62.Kh2 Kh7 63.Bb1 Qb1 64.Qd7–+) 62.Kh2 Qe5 63.Qe5 fe5 64.Bb1 Nd6 0–1. Jonsson,Pall G (1800) – Hardarson,Jon Trausti (2030), Reykjavik ISL, Open, 2014.

5.Bh2 d5 6.c3 Ba5 7.Nf3 0–0 8.Qc2 Re8 9.e3 Ne7 (better is 9...Ne4!?–/+) 10.Be2+= Bf5 11.Qa4 (11.Qb2 Nc6+=) 11...c6 12.0–0 Ne4 13.Qb3 (13.Qa3 Bc7=) 13...Bc7 (13...Nc5!? 14.Qa3 Bd3 15.Bd3 Nd3+=) 14.Bc7= Qc7 15.d3 Nc5 16.Qd1 (16.Qc2 Nc8=) 16...Rad8 (16...Qb6 17.Qc2+=) 17.Nh4 (17.Qc2 Qa5+=) 17...Bc8 (17...Qa5 18.Qc2+=) 18.Nd2+= Ng6 (18...Nf5 19.Nhf3=) 19.Ng6= hg6 20.Bf3?? (better is 20.d4 Ne4 21.Ne4 de4 22.Rb1=) 20...Nd3–+ 21.Nb3 Ne5 22.Nd4 (22.Qe2 Qe7–+) 22...g5 (better is 22...c5 23.Nb3 Bf5–+) 23.Qc2? (23.Be2 Bd7–/+) 23...g4 (better is 23...c5 24.Nf5 Nf3 25.gf3 g6–+) 24.hg4 Bg4 25.Bg4 Ng4 26.g3 g6 27.Qd3? Kg7 28.c4?? Ne5 29.Qc3 f6 30.cd5 Rd5 31.Rfd1 Qd7 32.Qb3?? Rd8 33.Rdb1 b6 (33...b6 34.Qc2 c5–+) 0–1. spargeltarzan (1700) – jeich (1710), gameknot.com, 2013.

5.Bh2 d6 6.c3 Ba5 (6...Bc5 7.d4 Bb6 8.e3 0–0 9.Bd3 Be6 10.Nf3=) 7.Na3 (7.e3 a6+= (7...0–0 8.Nf3 Be6 9.Bb5 Bd5 10.0–0+=) 8.Nf3 0–0 9.Be2 Re8 10.0–0+=) 7...Bd7 (7...Ne4 8.Nf3–/+ Qf6 9.Rc1 Be6 10.Qc2–/+) 8.e3 (8.Nf3 0–0 9.Nc4 b5 10.Na5+=) 8...Ne4 9.Qc2 Bf5 (9...Qh4 10.g3+=) 10.Bd3 Qe7 11.Nf3 d5 12.Nb5 0–0 13.0–0 Bg6 14.Rae1 a6 (14...Rfe8 15.Nbd4 Nd4 16.ed4=) 15.Nbd4= Nd4 16.ed4 Qf6 (16...Bf5!?=) 17.Ne5+/– Qd8 (17...Bf5!?+/–) 18.Ng6+– (18.Be4?! Be4 19.Qb3 Rb8=) 18...fg6 19.Be4 de4 20.Re4 c6 (20...Kh8 21.Rfe1+–) 21.Qb3 Qd5 22.Qd5 (22.Rfe1 b5+–) 22...cd5 23.Re5 Rad8 24.Re7 b5 25.Be5 Rf7 26.Re6 Ra7 27.a3 Kf7+/– 28.Rc6 Rdd7 29.Rc8 Bd8 30.Bg3 Be7 31.Ra1 h6 32.Kf1 Rdb7 33.Be5 Rd7 34.f3 Bd8 35.a4 ba4 36.Ra4 a5 37.Rb8 Re7?? 38.Rd8+– Reb7 39.Rd5 1–0. Rossi,Silio – Orsenigo,Davide, Como–ch Provinciale, 2000.

5.Bh2 Ne4 6.Nf3 Qf6 7.c3 Bc5 (7...d6!?+=) 8.e3= d6 9.d4 Bb6 10.Bd3 Ng5 (10...d5 11.0–0=) 11.Nbd2 Ba5 (11...Nf3 12.Qf3 Qf3 13.Nf3=) 12.Qc2 (12.Ng5!? Qg5 13.Bf4+=) 12...Nf3+= 13.Nf3 (13.gf3 Bh3 14.Bd6 Bg2=) 13...Bh3 14.Be5 de5 (14...Ne5? 15.de5 de5 16.Rh3+–) 15.Rh3 ed4 16.ed4 Nd4 17.Nd4 Qd4 18.0–0–0 Qf4 19.Re3 Kf8 20.g3 Qf6 21.Bc4 (better is 21.Be4–/+) 21...Rd8?? (21...Bb6 22.Re2 Qc6+=) 22.Rd8+– Qd8 23.Qf5 Qf6 (23...Qd1 24.Kd1 Bc3 25.Qf7) 24.Qa5 g6+– 25.Qa7 Kg7 26.f4 Qc6 27.Qd4 Qf6 28.Qd7 h5 29.Bf7! h4 30.Bg6! Kh6 31.Bc2 (31.Bc2 Qe5 32.Re5 hg3 33.Re8 Re8 34.Qh7#) 1–0. Gottschalk,Siegfried (1905) – Khanna,Perry (1850), Newport op, 2006.

5.Bb2 d5

6.e3 0–0 7.Nf3 Re8 8.Be2 Bf5 9.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 d5 6.Be2 0–0 7.Nf3 Re8 8.0–0 Bf5 9.h3).

6.e3 0–0 7.Nf3 Bf5 8.Be2 Re8 9.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 d5 6.Be2 0–0 7.Nf3 Re8 8.0–0 Bf5 9.h3).

5.Bh2 0–0

6.c3 Ba5 7.Nf3 (7.e3 d6 8.Nf3 Be6 9.Bb5 Bd5 10.0–0 a6+=) 7...d5 (7...d6 8.e3 Qe8 9.Be2 Qe4 10.0–0 Qg6+=) 8.e3 Re8 (8...Ne4 9.Qb3 Bb6 10.Be2 Be6+=) 9.Be2 (9.Bb5 Bd7 10.0–0 Qe7+=) 9...Qe7 (9...Ne4 10.0–0 a6+=) 10.0–0 a6 (10...Bf5+=) 11.Qb3 Be6 (11...b5 12.Bf4+=) 12.Nd4 (better is 12.Qb7!? Reb8 13.Qc6+=) 12...Nd4+= 13.cd4 Ne4 (13...b6 14.Be5+=) 14.Bf3 (14.Qb7 A) worse is 14...Bd2 15.Nd2 (worse is 15.Bc7 Ba5 16.Qa8 Ra8 17.Ba5 Qg5+=) 15...Nd2 16.Rfc1+/–; B) 14...Reb8 15.Qc6 Ra7+=) 14...Nd2 (better is 14...Ng5!? 15.Be2 c6+=) 15.Nd2+= Bd2 16.Bd5 (16.Qb7!? Rec8 17.Rfd1+/–) 16...Bd5= 17.Qd5 c6 18.Qb3 Ba5 19.Rab1 b6 20.Rfc1 Rec8 21.a4 c5 22.dc5 Rc5 23.Rd1 Qb7 24.Qd3 h6 25.Qd4 (25.Rbc1 Rc1 26.Rc1 b5=) 25...Rg5 (25...Rac8 26.Qh4=) 26.Bg3 Rc5?? (better is 26...b5=) 27.Qc5!!+– (27.Qc5 Qg2 28.Kg2 bc5 29.Rd6+–) 1–0. Zauner,Franz – Zapfel,Paul (1885), Leonding AUT 9th Open, 2006.

6.c3 Be7 7.e3 d6 8.d4 Bf5 9.Bd3 Qd7 10.Ne2 Bh3?? (better is 10...Bd3 11.Qd3 d5=) 11.gh3+– Qh3 12.Nf4 Qh4 13.Nd2 Ng4 14.Qf3 Rfe8?? (14...Nh2 15.Qg2 Qg5 16.Rh2 g6+–) 15.Bg3 Qh6 16.Rh6 Nh6 17.Rb1 Na5 18.Nh5 Bg5 (18...Kh8 19.Bf4 Ng8 20.Qd5+–) 19.Rb5 black resigned (19.Rb5 d5 20.Rd5+–) 1–0. aspasio (2590) – rooked (2400), net–chess.com, 2012.

6.c3 Be7 7.e3 d6 8.Nf3 Re8 9.d4 Bf5 10.Bd3 Bd3 +=.

6.c3 Be7 7.Nf3 d5 8.e3 Re8 9.Bd3 Bd6 10.0–0 Bh2 +=.

4.h3 d5

5.e3 0–0 6.Nf3 Nc6 7.Bb2 Re8 8.Be2 Bf5 9.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 d5 6.Be2 0–0 7.Nf3 Re8 8.0–0 Bf5 9.h3).

5.Nf3 c5 6.e3 0–0 7.Be2 Nc6 8.0–0 Qe7 9.Bh2 Rd8 10.c3 Ba5 11.a4 a6 12.Na3 c4 13.Nc2 b5 14.ab5= ab5 15.Nfd4 Nd4 16.Nd4 Bb7 17.Nb5+= Bc6 18.Nd4 Bd7 19.Qc2 Bb6 20.Ra8 Ra8 21.Rb1 Bd4 22.cd4 h6 23.Be5 Ba4 24.Qb2 Ne4 25.f3 Ng3?? 26.Bg3+– f5 27.Qb7 Qb7 28.Rb7 Bc6 29.Rb8 Rb8 30.Bb8 Kf7 31.d3 c3 32.Bd1 Ke7 33.Bc7 g5 34.Ba5 f4 35.e4 de4 36.de4 Kd6 37.Bc3 h5 38.Bb4 Kc7 39.d5 Bd7 40.e5 g4 41.e6 Be8 42.d6 Kd8 43.Ba5 (43.Ba5 Kc8 44.Be2 gh3 45.Ba6 Kb8 46.d7 h2 47.Kh2 Bd7 48.ed7 Ka7 49.d8Q h4 50.Qc7 Ka6 51.Qb6#) 1–0. pljubic (2445) – segovia (1770), net–chess.com, 2008.

5.c3 Be7

6.Nf3 Nbd7

7.Bf4 Nf8

8.c4 Ng6

9.cd5 Nd5 10.Bg3 =+.

5.Nf3 Nc6

6.Bb2 0–0 7.e3 Re8 8.Be2 Bf5 9.0–0 (--> 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 4.e3 Nc6 5.Bb2 d5 6.Be2 0–0 7.Nf3 Re8 8.0–0 Bf5 9.h3).

6.Bh2 0–0 7.c3 Bd6 8.e3 Re8 9.Be2 Bh2 10.Nh2 Qd6 11.Nf3 Bd7 12.Qc1 Ne5 13.Qa3 Nf3 14.Bf3 Qa3 15.Na3= Rad8 16.Nc2 Bf5=+ 17.Nd4 Be4 18.Nb5 c6 19.Nd4 Bd3 20.Be2= Be2 21.Ne2 c5 22.0–0 Re7 23.Rfb1 b6 24.d4 cd4 25.cd4 Rc8 26.Rc1 Rec7 27.Rc7 Rc7 28.a4 Kf8 29.Kf1 Ke7 30.Ke1 Kd7 31.Ra2 Ne4 32.f3 Nc3 33.Nc3 Rc3 34.Kd2 Rc4 35.Kd3 f5 36.g4 g6 37.gf5 gf5 38.e4 fe4 39.fe4 Ke6 40.e5 h5 41.Ra3 h4 42.Ra1 Rb4 43.Kc3 Rc4 44.Kd3 Rb4 45.Kc3 Rc4 46.Kd3 ½–½. Rossi,Silio – Turcatti,Mauro, Como–ch Provinciale, 2000.

6.Bf4 0–0

7.e3 Bf5

8.Bb5 Bd6

9.Bc6 bc6

10.Bd6 cd6

11.0–0 Qd7 12.Nc3 Rfb8 13.d3 Be6 14.Rb1 Rb1 15.Qb1 Qc7 16.Qa1 Rb8 =.

11.0–0 Qe7 12.d3 Rfb8 13.Nc3 c5 14.Rb1 Rb6 15.Rb6 ab6 16.Qb1 Ra3 =.

11.0–0 Re8 12.d3 c5 13.Nc3 Rb8 14.Rb1 Qe7 15.Rb8 Rb8 16.Qa1 Qc7 =.

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Chessworld.net on behalf of Marek have set up a continuous stream of 1.b4 tournaments.

These tournaments should always be available to join. As soon as four players are paired, another one will automatically be set up.

    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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