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Send your 1.b4 games to me, please. Thank you! /Marek
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(c) Marek Trokenheim

1.b4 e6 2.Bb2 Nf6 3.b5 c6

(...)

4.a4 b6 5.Nf3 d5 6.g3 g6 7.Bg2= Bg7 8.0–0 0–0 9.d4 a6 10.Nc3 Bb7 11.Re1 Nbd7 12.bc6 Bc6 13.Qd2 Qc7 14.Ng5 Rab8 15.e4 de4 16.Rab1 Rfc8 17.Qe2 b5 18.ab5 ab5 19.Nce4 Ne4 20.Ne4=+ Nf6 21.Nf6= Bf6 22.d5 Bb2 23.dc6 Bc3 24.Red1 b4 25.Rd7 Qa5 26.Qc4 Be5 27.Be4 Bc7 28.Kg2 Rd8 29.Rbd1 Qe5 30.R1d4 h5 31.Bg6!+/– fg6 32.Re4+– Qf5 33.Re6 Kh8?? 34.Qd4 Be5 35.Re5 Rd7 36.Re8 (36.Re8 Kh7 37.Qh8#) 1–0. wiking – REIDID93, internet, 2009.

4.a4 c5?! 5.c4 Be7 6.e3 a6 7.Nf3 0–0 8.Bd3 ab5 9.ab5 Ra1 10.Ba1 b6 11.0–0 d5 12.Nc3 Bb7 13.Qa4 Nbd7 14.Bb2 e5 15.cd5 Nd5 16.Nd5 Bd5 17.Ne5 Nf6 18.Ra1 Bb7 19.Bf5 Qd2 20.Nc4 Qd5 21.Bh3 h6 22.Nb6 Qd2 23.Bf6 Bf6 24.Rd1 Qb2 25.Nd7 Ra8 26.Nf6 Qf6 27.Qc2 Qg5 28.Qf5 Qf5 29.Bf5 g6 30.Bd7 Rd8 31.Bg4 Rb8 32.Rc1 Bc8 33.Bc8 Rc8 34.b6 Rc6 35.b7 Rb6 36.Kf1 Rb7 37.Rc5 Kg7 38.h4 Rb4 39.g3 Kf6 40.f4 Rb2 41.e4 Rd2 42.Rc6 Ke7 43.f5 Rd6 44.Rd6 Kd6 45.fg6 fg6 46.Ke2 Ke6 47.Kd3 Ke5 48.Ke3 g5 49.hg5 hg5 50.g4 Kd6 51.Kd4 Ke6 52.e5 Ke7 53.Ke3 Kd7 54.Kd4 Kc6 55.Ke4 Kd7 56.Kf5 Ke7 57.e6 Ke8 58.Kf6 Kf8 59.Kg5 1–0. Trkn – Lonnie Hammock, itsyourturn.com, 2000.

4.c3 h6 5.a4 Qc7 6.Nf3 Bd6 7.e3 a6 8.Qb3 b6 9.Be2 c5 10.c4 Rg8 11.Nc3+= Ng4 12.h3 Ne5 13.d4 Nf3 14.Bf3 Bb7 15.d5 e5 16.Ne4 f5 17.Nd6 Qd6 18.Qc3 e4 19.Bh5 Kd8? 20.0–0?? Qe7 21.Rad1 d6 22.Bg6 a5 23.Bf5+– Nd7 24.Be6 Nf6 25.Bg8 Ng8 26.Qg7 Qg7 27.Bg7 Kc7 28.f3 Ne7 29.fe4 Ng6 30.Rf7 Kb8 31.Bh6 Ne5 32.Rf8 Bc8 33.g4 Kc7 34.g5 Bb7 35.Ra8 Ba8 36.Rf1 Kd7 37.Rf6 Ke7 38.Re6 Kf7 39.Rd6 Nc4 40.Re6 Ne3 41.g6 Kg8 42.Re8# 1–0. druhynejhorsi (1735) – joule, kurnik, 2011.

4.Nc3 Be7 5.e3 cb5 6.Bb5 0–0 7.Nf3 a6 8.Bd3 d6 9.0–0 Nc6 10.Qe2 b5 11.Ne4 Ne4 12.Be4 Bd7 13.Nd4 Rc8 14.Bc6 Bc6 15.a4 Bb7 16.ab5 ab5 17.Bc3 Bf6 18.Nb5 Qb6 19.Bf6+– gf6 20.Nd4 f5 21.Rfb1 Qc7?! 22.Ra7 Rb8 23.Qb5 (23.Qb5 e5 24.Nf5+– (24.Rb7?! Rb7 25.Qb7 Qb7 26.Rb7 ed4+–)) 1–0. gtate (2475) – bredrook (2275), net–chess.com, 2007.

4.c4 b6 5.e3 Bb7 6.Nf3 d5 7.Be2 Be7 8.0–0= 0–0 9.d4 dc4= 10.Bc4 cb5 11.Bb5 Nc6 12.Nbd2 a6 13.Ba4 b5=+ 14.Bc2 Nb4 15.Bb1 Rc8 16.a3 Nbd5–/+ 17.Qb3 Nb6 18.Bd3 Na4 19.Bc1 Bd5 20.Qd1 Nc3 21.Qe1 Nfe4 22.Ne4=+ Be4 23.Be4 Ne4 24.Nd2 Nc3 25.Nb1 Na4 26.Bd2 Rc4 27.Ba5 Qd7 28.Nc3 Nc3 29.Bc3 Rfc8 30.Ba5 Qc6 31.Qb1 Bd6 32.g3 e5 33.de5 Be5 34.Ra2 g6 35.Rd1=+ Qf3 36.Qd3 Bc3 37.Bc3=+ Rc3 38.Qd2 Qd1 39.Qd1=+ Rc1 40.Qc1 Rc1 41.Kg2 Rc3 42.Kf3 Kg7 43.Ke2 h5 44.h4 Kf6=+ 45.Kd2 Rc6 46.Kd3 Ke5 47.f3 Rc4 48.Rb2= Kd5 49.e4 Kc5=+ 50.g4 Ra4 51.Rc2 Kd6 52.Rc3 Ke5 53.gh5= gh5 54.Ke3 Kf6 55.Kf4 Kg6 56.Ke5 a5 57.Rb3 b4 58.ab4 ab4 59.Kf4 Kf6 60.e5 Ke6 61.Ke4 f5 62.ef6 Kf6= 63.Kf4 Kg6 64.Ke4 Kf6 65.Ke3?? Ra3–+ 66.Rd3 Kf5 67.Kd2 Rd3 68.Kd3 Kf4 69.Kc4 Kf3 70.Kb4 Kg3 71.Kc3 Kh4 0–1. Bartle,Georg – Jahr,Dieter (1855), GER–chA Seniors, 2004.

4.bc6 dc6 5.e3 b5 6.Be5 Nbd7=+ 7.Bg3 Bb7 8.Nf3 g6 9.Be2 Bg7 10.Bd6?? Nb6 11.Bc5 Na4 12.Ba3 Nd5 13.c3= Nac3 14.dc3+/– Nc3 15.Qd8 Rd8 16.Bb2 b4 17.Nc3 bc3 18.Ba3 Rd2? 19.Nd2+– cd2 20.Kd2 Ba1 21.Ra1 f5 22.Rb1 (22.Rb1 Bc8 23.Rb8+–) 1–0. pinecrest1981 – denys, Live Game Caissa's Web, 2006.

4.e3 Bb4 5.c3 Ba5 6.bc6 bc6 7.Ba3 d6=+ 8.Nf3 0–0 9.Nd4 c5 10.Nb3 e5 11.Na5 Qa5 12.Be2 Nbd7 13.0–0 Ba6 14.Ba6 Qa6=+ 15.d4 Rab8 16.de5 de5–/+ 17.Nd2?? Qa3–+ 18.c4 Rb2 19.Nf3 Ra2 20.Ra2 Qa2 21.e4 Qc4 22.Nd2 Qb4 23.Qc2 a5 24.Rb1 Qd4 25.Kh1 Ng4 26.h3 Nf2 27.Kh2 Nf6 28.Nb3 Qe4 29.Qa2 Qf4 30.Kg1 Nh3 31.gh3 Qg3 32.Kf1 Qh3 33.Ke1 Qh1 34.Ke2 Qg2 35.Kd1 Qa2 36.Kc1 Qa3 37.Rb2 Rb8 38.Kb1 Rb3 (38...Rb3 39.Rb3 Qb3 40.Kc1 Qe3 41.Kc2 a4 42.Kb2 Qd2 43.Kb1 a3 44.Ka1 Qb2#) 0–1. pinecrest1981 – 26i4u8, Live Game Caissa's Web, 2006.

4.e3 b6 5.bc6 Nc6 6.g3 Bb7 (6...Bb7 7.Nf3 Bc5=+). Ridgereeno – tradicio, ChessWorld.net, 2005.

4.e3 Bc5 5.Nf3 cb5 6.Bb5 Qb6 7.Nc3 Bb4 8.Ba4 0–0= 9.0–0 Nc6 10.a3 Ba5 11.d4?? Re8?? 12.Nd2?? Qb2–/+ 13.Nb5 a6 14.Nc4 Qa1! 15.Qa1 ab5 16.Bb5 Bc7 17.h3 Na5 18.Ne5 Be5 19.de5= Nd5 20.e4 Nc7=+ 21.c4 Nb5 22.cb5= Nc4 23.a4 Nd2 24.Re1 Nb3 25.Qc3+= Na5 26.f4 Ra7 27.f5 ef5 28.ef5 d6?? 29.g4 de5 30.Re5 Rd8?? 31.Qd4!! (31.Qd4 Rf8 32.Qa7+–) 1–0. gtate (1960) – flaviolucas (2100), net–chess.com, 2006.

4.e3 g6 5.Nf3 Bg7 6.c4 0–0= 7.d4 Ne4 8.Bd3 f5 9.0–0+= b6 10.Na3 Bb7 11.Qc2 d5 12.Ne5 Be5 13.de5 cb5 14.Nb5 dc4 15.Bc4+/– Qe8? 16.Nc7+– (16…Qc6 17.Be6 Kg7 18.Qc6 Nc6 19.Na8 Ra8 20.Rfd1+–) 1–0. Wall,Bill – Vision, Internet, 2005.

4.c4 Qb6

5.e3 Be7 6.Nf3 0–0 7.Be2 d5 8.a4 dc4 9.Bc4 cb5 10.ab5 Nbd7 11.Nc3 Nc5 12.Na4 Qc7 13.Nc5 Bc5 14.Qb3 Bd7 15.0–0 Ne4 16.Be5 Bd6+= 17.d4 Be5 18.de5 Rac8 19.Rfc1 b6 20.Qb2 Qb7 21.Ra4 Rc7 22.Rca1 Rfc8= 23.Ra7 Qa7 24.Ra7 Ra7 25.Bd3 Nc3=+ 26.h4 Rc5 27.Ng5 h6 28.Ne4 Ra2 29.Qb3 Ra1 30.Kh2 Ne4 31.Be4 Bb5 32.f4 Rac1–/+ 33.Qa3 Be8 34.Qa8 Rc8 35.Qb7 b5 36.f5 R1c7–/+ 37.Qb6 Bc6 38.Bc6 Rc6 39.Qb5 ef5 ½–½. Nokarookoff – Whiterose, ChessWorld.net, 2006.

5.Bf6= gf6 6.bc6 bc6 7.Nc3 c5 8.e4 Rg8 9.g3 Nc6 10.Bg2 Rb8 11.Rb1 Qc7 12.Nge2 Ba6 13.d3 Bd6 14.0–0 Ke7 15.f4 Rb1+= 16.Qb1 Rb8 17.Qc2 Qa5 18.e5 fe5= 19.Bc6 dc6 20.f5 Rf8 21.f6 Kd7 22.Ne4 h6 23.N2c3 Qa3 24.Qd2 Rh8 25.Rf2 Bc7 26.Qb2 Qb2 27.Rb2 Bb6 28.Na4 Kc7 29.Kg2 Rd8 30.Nac5 Bc5 31.Nc5 Bc8 32.Kf3 Rd4 33.Ke3 Rg4 34.Ne4+– Rg6 35.c5 Ba6 36.Rf2 Rg8 37.Nd6 Rf8 38.Ke4 Rd8 39.Rf3 Rd6+/– 40.cd6 Kd6 41.g4 c5 42.Rh3 c4 43.dc4 Bc4 44.Rh6 Ba2 45.Rh8 Bb1 46.Ke3 Kc5 47.Rf8 a5 48.Rf7 a4 49.Rc7 Kd6 50.Rc1 Bg6 51.h4 a3 52.h5 Bh7 53.Ra1 Bc2 54.Ra3 Bd1 55.Ra7 Bg4 56.f7 (56...Bd1 57.f8Q Kc6 58.Qc8 Kb5 59.Rb7 Ka4 60.Qa8#) 1–0. Plock,Joerg – Schulz,Ronald, Mecklenburg VP LL1, 1997.

4.c4 Bc5

5.d4 Bb4 6.Bc3 Qa5 =.

5.d4 Bb4 6.Nd2 d5 7.e3 0–0 8.a3 Bd2 9.Qd2 Ne4 10.Qc2 Qa5 11.Ke2 cb5 12.f3 Nd6 13.Bc3 Qa4 14.Qd2 Nc4–+ 15.Qa2 Nc6 16.Nh3 Qa6 17.Kf2 Nd6 18.Bd3 h6 19.g4 f6 20.Nf4 Ne7 21.Rag1 Qc6 22.Rc1?! Qe8 23.Bb1 f5 24.Qb2 a5 25.h4 Nc4 26.Qa2 a4? 27.Bb4! Rf7 28.g5 hg5 29.hg5 g6 30.Rh6! Rh7 31.Rch1! Rh6 32.Rh6 Kg7 33.Kg1 e5 34.Be7 Qe7 35.Rg6 Kf7 36.Rf6 Ke8 37.Ng6 Qa3 38.Rf8 Kd7 39.Bf5 Kc6 40.Qa3 Na3 41.Rc8 Rc8 42.Ne7 1–0. Plock,Joerg – Otte, blitz, 1996.

5.e3 0–0 6.Be2 d5 7.Qc2 Bd6 8.f4 Ne4 9.d3 Nc5 10.Nd2 Nbd7 11.Qc3 Nf6 12.g4 Na4–/+ 13.Qb3 Nb2 14.Qb2 dc4 15.dc4? Qb6 16.Qc3 Bc5 17.Nf1 a5 18.a4?? Bb4–+ 0–1. Meybohm,Dirk – Hornig, 1990.

5.e3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 0–0 9.Nf3 d5 10.Be2 Bb4 11.0–0 Nbd7 12.d3 Qa5 13.Nbd2 cb5 14.cb5 (14.Nb3!? Qa4 15.cd5 Nd5 16.Qb1=) 14...Qb5+= 15.d4 Qa5 16.Nb3 Qc7 17.Qd3 Ne4 18.Rc1 Qd8 19.Qc2 Nb6 (19...b6 20.Bd3+=) 20.Bd3 Nd6 (better is 20...f5!?+=) 21.Bh7+= Kh8 22.Bd3 Bd7 (22...Nbc4 23.Bc3 Ba3 24.Ra1+=) 23.Nc5+/– Nbc4 24.Nd7 (24.Rb1!? Ba3 25.Ne5+/–) 24...Qd7+= 25.Ne5 Qe7 (25...Ne5 26.de5 Rc8 27.Qd1 Rc1 28.Qc1+=) 26.Nc4 (worse is 26.Bc4 Nc4 27.Nc4 Rc8=) 26...Rc8?? (26...dc4 27.Qb2+/– (worse is 27.Bc4 Ba3 28.Bd3 Bc1 29.Qc1 Rc8+=)) 27.Qe2 (better is 27.Qd1 Ne4 28.Be4 de4 29.Qh5 Kg8 30.Qb5+–) 27...dc4?? (better is 27...Kg8 28.Bb2 dc4 29.Bc4 Rc4 30.Rc4 Nc4 31.Qc4 Bd6+/–) 28.Qh5 (28.Qh5 Kg8 29.Qh7 Kf8 30.Qh8; 28.Bc4? b5–+) 1–0. Steinerstauch,Bernd – Gerhard,Georg, Schweinfurt GER, 2013.

4.bc6 Nc6

5.Nf3 d6 6.Nc3 h6 7.g3 d5=+ 8.Bg2 Be7 9.0–0 0–0 10.Rb1 a6 11.e3 Bb4 12.a3 Bc5 13.d3 Re8 14.Na4= Be7 15.Bc3 b5–/+ 16.Nb2 a5 17.a4 b4 18.Bd2 Bd6 19.Re1 Bb7 20.e4 de4 21.de4 Ne5 22.c3 Be4 23.Rc1 Nf3–/+ 24.Bf3 Bf3 25.Qf3 b3 26.c4–/+ Bc5 27.Be3 Be3 28.Qe3 Rb8 29.Rc3 Ng4 30.Qf3=+ Nf6 31.Rb3 Rb3=+ 32.Qb3 Qd2 33.Rf1 Ne4 34.Nd1 Rd8 35.Qe3? f5 36.Qb6–/+ Kf7 37.c5 Rc8?? 38.Qb7+– Kf6 39.Qc8 Ng5 40.h4 Ne4 41.c6 g5 42.c7 gh4 43.Qd8 Kg6 44.Qg8 Kh5 45.c8Q hg3 46.Qf7 Kh4+– 47.Qg6 Ng5 48.Qh6 Kg4+– 49.Qc4 Ne4 50.f3# 1–0. verns2 – Drunken Pawn, internet, 2010.

5.Bf6 Qf6 6.c3 Bc5 7.Nf3 Ne5 8.d4 Nf3 9.ef3 Bb6 10.Be2 d5 11.Bb5 Bd7 12.Bd7 Kd7 13.0–0 Rhd8 14.Qa4 Ke7 15.Nd2 Rac8 16.c4 Bd4 17.Rab1 b6 18.cd5 ed5 19.Nb3 Be5 20.Qa7 Rd7 21.Qa6= Rc6 22.Rbe1 Kd8 23.a4 Bc3 24.Rc1 d4?? 25.Qd3 h6 26.Qh7?? Re6 27.a5 Ba5 28.Na5 ba5 29.Qh8 Re8 30.Rc8 Kc8 31.Qe8 Kc7?? 32.Qa8 Qb6 33.Rc1 Kd6 34.h3?? Ke7=+ 35.Rc8 Kf6?? 36.Rc6+– Qc6 37.Qc6 Ke7 38.Qc5 Rd6 39.Qa5 d3 40.Qd2 g5 41.g4 Ke6 42.Kg2 f5 43.Kg3 f4 44.Kh2 Ke5 45.h4 Rd5 46.Kh3 1–0. pinecrest1981 – uoykcuf, Caissa.com, 2004.

4.e3 Qb6

5.a4 cb5 6.ab5 d5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 cb5 6.ab5 Qb6).

5.Nc3 cb5 6.Rb1 a6 7.Nf3 Qd8 8.Ne5 Bd6 9.d4 Nc6 10.Nc6 bc6 11.Be2 a5 12.a3 Bb7 13.0–0 h5 14.e4= Bf4 15.e5 Ng4 16.Bg4 hg4=+ 17.Qg4?? Bh2–+ 18.Kh1 Be5 19.Kg1 Bf6 20.Ne4 Rh4 21.Qf3 Rh6 22.Nd6 Ke7 23.Nb7 Qc7 (23...Qc7 24.Rfe1 Rah8–+) 0–1. licky1 – manoloXXIX, caissa.com, 2006.

5.c4 Be7 6.Nf3 a6 7.Nc3 d5 8.cd5 ab5 9.de6 Be6 10.a3 Nbd7 11.Nd4 Bc4 12.d3 c5 13.Nf5 Be6 14.Ng7 Kf8 15.Ne6 fe6 16.Qb3 b4 17.ab4 Ra1 18.Ba1 cb4 19.Ne4 Rg8 20.Bd4 Qa6 21.Nf6 Bf6 22.Bf6 Nf6 23.Qb4 Kf7 24.d4 Qa1 25.Ke2 Nd5 26.Qb7 Kf6 27.g3 Nc3 28.Kf3 Qd1 29.Kg2 Qd2 30.Qh7 Rg7 31.Qh6 Rg6 0–1. Bonetti,Shane – Acornn (1610), ICC, 2002.

4.e3 d5

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

5.Nf3 Bd6 6.a4 (--> 4.a4 d5 5.e3 Bd6 6.Nf3).

5.Nf3 Be7 6.a4 (--> 4.a4 d5 5.e3 Be7 6.Nf3).

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

4.e3 Bd6

5.e4 e5 6.Nf3 Qe7 7.Nc3 a6 8.ba6 ba6 9.Qe2 0–0 10.a3 h6 11.Ra2 a5 12.Ra1 Ba6 13.d3 Bc5 14.Na4 Bd6 15.Qd2 Ne4?? 16.de4+– Bf1 17.Rf1 f5 18.ef5 Rf5?? 19.Nb6 Ra7 20.Nc8 Qe6 21.Qd6 Qc4 22.Ne7 Kh8 23.Qb8 Kh7 24.Nf5 Ra6 25.Qe5 Qf7 26.Nh6! gh6 27.Qh8 Kg6 28.Ne5 Kf5 29.Nf7 c5 30.Qe5 Kg6 31.Nh8 Kh7 32.Qg7# 1–0. b4_player (2220) – lookoutson, GameColony.com, 2003.

5.Nf3 0–0 6.a4 a6 7.Be2 a5 8.0–0+= b6 9.c4 Bc5 10.d4 Bb4 11.Nbd2 c5 12.dc5+/– Bc5 13.Nb3 Bb4+/– 14.Rc1 Bb7 15.c5+/– bc5 16.Nc5 Bc5 17.Rc5 Bd5 18.Bf6 Qf6 19.Qd4 Qd4 20.Nd4+– f5 21.Bf3 Bf3 22.Nf3 Rd8 23.Rc7 d6 24.Nd4 Re8 25.Rfc1 g6 26.Nc6 Nc6 27.R1c6 d5 28.b6 e5 29.b7 (29.b7 Rab8 30.Rc8 Rb7 31.Re8 Kf7 32.Rec8 Rb1 33.Rc1+–) 1–0. MarcosRamos (1745) – joaquim, internet, 2007.

4.a4 Qa5

5.e3= a6 6.Nf3 ab5 7.ab5+/– Qa1 8.Ba1 Ra1 9.Be2 cb5 10.Bb5 g6 11.c4 Bg7 12.Qc2 Nc6 13.0–0 0–0 14.Nc3 Nb4 15.Qb2 Rf1 16.Kf1 Nd3 17.Qa3 b6 18.Na4 Nc5 19.Nb6 d6 20.d4 Nce4 21.Qa7 e5 22.Nc8 Rc8 23.de5 de5 24.Ne5 Rf8 25.f3 Nd6 26.Nc6 Nc8 27.Qc7 Kh8 28.Ba6 (28.Ba6 h6 29.Bc8+–) 1–0. marekt – Puroktoy, ChessHere.com, 2005.

5.e3 d5 6.Nf3 =.

5.e3 Ne4 6.f3 Qb4?? 7.Ra2?? Nc5= 8.c4 Qb3 9.Qb3 Nb3 10.Ba3 Ba3 11.Ra3+= Na5 12.d4 0–0 13.Nh3 d6= 14.Nf2 Nd7 15.Ne4+= d5 16.Nd6 Nb6 17.c5+/– Nbc4 18.Nc4 dc4 19.Rc3 e5 20.Bc4 ed4+= 21.ed4 Re8 22.Kf2+/– Nc4 23.Rc4 Be6 24.Rb4 Bd5 25.Nc3+– Re6 26.Nd5 cd5 27.Re1 Rae8 28.Re6 Re6 29.Rb3 Kf8 30.h3 g5 31.Rc3 Ke7 32.Re3 f5 33.g3 h5 34.a5 Kd7 35.Re6 Ke6 36.Ke3 a6 37.c6 Kd6 38.cb7 Kc7 39.ba6 Kb8 40.f4 h4 41.fg5 hg3 42.g6 f4 43.Kf3 (43…Kc7 44.g7 Kb8 45.g8Q Kc7 46.b8Q Kc6 47.Qe6#) 1–0. Poschmann,Hans – Caccam,Arsenio, CalChess Season opener, 1993.

5.e3 cb5

6.ab5 Qb6 7.Bd4 Qd6 8.Ra7 Ra7 9.Ba7 b6 10.c4 Qc7 11.Bb8 Qb8 12.Nf3 Bd6 13.g3 0–0 14.Bg2 Qc7 15.d3 Bb7 16.0–0 h6 17.Nbd2 Ng4 18.d4 f5 19.h3 Nf6 20.Nh4 Bg2 21.Ng2 Bb4 22.Nf3 Ne4 23.Qb3 Ba5 24.Nf4 g5 25.Ng6 Rf6 26.Nge5 Kg7 27.Nd3 g4 28.hg4 fg4 29.Nfe5 Nd2 30.Qc2 Nf1 31.Kf1 h5 32.Nf4 Rf5 33.Nh5 Kh6 34.Nf4 Qd6 35.Qf5 ef5 36.Nf7 1–0. hal1958 – Yg, playchess.de, 2002.

6.ab5 Qc7 7.Bd4 Be7?? 8.b6+– Qd8 9.Ra7 (9…Nc6 10.Ra8 Nd4 11.ed4+–) 1–0. kamret (2215) – NN, GameColony.com, 2003.

4.a4 a6

5.Nc3 ab5 6.ab5 Ra1 7.Qa1 Qb6 8.e3 Bb4 9.h4 Bc3 10.Bc3+/– cb5 11.h5 0–0? 12.h6+– b4 13.Bb2 d6 14.hg7 Kg7 15.Bf6 Kg8 16.Bd3 e5 17.Bh7 1–0. xtom – krawcuandy, kurnik, 2011.

5.Nc3 d5 6.e3 Bd6 7.f4 e5 8.fe5 Be5 9.Nf3 Bd6 10.Be2 Bg4 11.Nd4 Be2=+ 12.Nce2 Be5 13.bc6 bc6 14.Rb1 Qc7 15.Nf5 Bb2 16.Rb2 Qe5 17.Qb1 0–0 18.0–0 Nbd7 19.Ned4 Rab8 20.Rb8 Rb8 21.Qe1 Rc8 22.Qe2 Nb8 23.Nh6 Kf8 24.Ng4 Ng4 25.Qg4 Re8 26.Nf5 Re6? 27.d4+– Rg6 28.Qg6 hg6 29.de5 gf5 30.Rf5 Ke7 31.Rh5 Nd7 32.a5 Ke6 33.Rh8 Ke5 34.Ra8 Nc5 35.Ra7 1–0. mtr – Prastudy, littlegolem.net, 2009.

5.c4 cb5 6.cb5 ab5 7.ab5 Ra1 8.Ba1 Qa5 9.Bf6 gf6 10.Nc3 Bb4 11.e3 Bc3 12.dc3 Qc3 13.Qd2 Qa1 14.Ke2 d5 15.Nf3 Bd7 16.Qd3 Qb2 17.Ke1 Qc1 18.Ke2 0–0 19.Nd2 Rc8 20.Kf3 Rc2 21.Qd4 Qd2 22.Qd2 Rd2 23.g4 Rd1 24.Ke2 Rb1 (24...Rb1 25.f3 Bb5 26.Kf2 Bc4–+) 0–1. bratek55 (1635) – jarjar, kurnik, 2011.

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

5.c4 Ne4 6.Nf3 Qa5 7.Nc3 Nc3 8.Bc3 Qc7 9.e4 f6 10.Be2 Bd6 11.d4 ab5 12.c5 Be7 13.ab5 Ra1 14.Qa1 cb5 15.Bb5 Nc6 16.0–0 Qf4 17.Bd3 0–0 18.Bd2 Qb8 19.d5 Bc5 20.dc6 dc6 21.g3 Bd6 22.Nh4 Be5 23.Qb1 b5 24.Be3 Rd8 25.f4 Bd4 26.Bd4 Rd4 27.Nf3 Rd8 28.e5 f5 29.Qb3 Qb6 30.Kg2 Rd5? 31.h3 Bd7? 32.Qa3 Qb7 33.g4 c5 34.gf5 ef5 35.Qb3 Kf8 36.Bc4 Bc6? 37.Bd5+– Bd5 38.Qd3 Qd7 39.Kh2 c4 40.Qa3 Qe7 41.Qe7 Ke7 42.Nd4 b4 43.Nf5 Kf8 44.Rd1 Be6 45.Nd4 Bf7 46.e6 Be8 47.Rb1 b3 48.Nb3 cb3 49.Rb3 Ke7 50.Re3 Bg6 51.Kg3 Bf5 52.Re5 g6 53.Kf2?? Be6? 54.Ke3 Kd6 55.Kd4 Ba2? 56.Ra5+– Bb1 57.Ra6 Kc7 58.Ke5 Kd7? 59.Kf6 Ke8 60.Kg7 Ke7 61.Rg6?? Bg6–+ (61...hg6?! 62.h4=) 1–0. Satka,Martin – Daebel,Hasso, Dr, 8sen.LSEM Brandenburg, 2000.

5.bc6 bc6 6.Nf3 c5 7.g3 Nc6 8.Bg2 Rb8 9.Ba3 d5=+ 10.0–0 Be7 11.d3 0–0 12.Nbd2 Qc7 13.c3 a5 14.Qc2 Ba6 15.Rfe1 Rfd8 16.Rab1 e5 17.Rb8 Rb8 18.Qa2 h6 19.Nh4 Qd7 20.Rb1 g5 21.Rb8= Nb8 22.Qb3 Bd6 23.Nhf3 e4 24.de4= de4 25.Ne1 e3 26.fe3 c4 27.Qb6 Ba3 28.Qb8 Kg7 29.Nef3 Qa4 30.Nd4 Qe8 31.Nf5= Kg6 32.Qb1 Qb5 33.Ne7 Kg7 34.Nf5= Kg6 35.Ne7–/+ Kg7 36.Nf5= Kf8 37.Qf1 Qe5 38.Qf3 Bc8 39.Nd4 Be6 40.Ne4?? Nd5 41.Nc6 Qc7 42.Nd4= Kg7 43.h4 Bc1 44.hg5 Be3 45.Kh2 Bg5 46.Bh3 Qe5 47.Be6 fe6 48.Nc5 Nc7=+ 49.Qc6 Kg6?? 50.Nd7+– Qe3 51.Kg2?? Nd5 52.Nf8= Kh5 53.Nfe6 Qe4 54.Kh2+= Nf6 55.Nc5 Qe3 56.Kg2 Qc3–/+ 57.Nf3 Qe3 58.Kh3 Qe2–+ 59.Nh2 Kg6 60.Nd7?? Qh5 61.Kg2 Qe2?? 62.Kh3= Qe8 (63.Qc4 Qd7 (< 63...Nd7 64.Qa6 Bf6 65.Qa5–+) 64.Kg2 Qd2 65.Kh3 Qd1–+) 0–1. Volke,Karsten (2480) – Shulman,Yuri (2425), Minsk, 1994.

5.bc6 dc6 6.Nf3 =.

5.bc6 Nc6 6.c4 Ne4 7.e3 Qb6 8.Qc1 d5 9.cd5 (9.cd5 ed5 10.Nc3=+). Borucki – Lach, corr 1AMM Poland, 1991.

5.e3 ab5 6.Nc3 b4 7.Nce2 d5 8.h4 Be7 9.h5 h6 10.Nf3 Nbd7 11.Ne5 Ne5 12.Be5 Bd6 13.Bb2 e5 14.Ng3 0–0 15.Bd3 e4 16.Be2 Qc7 17.Rh4?? Bg3 18.fg3 Qg3 19.Kf1 Qh4 20.a5 Ng4 21.Kg1 Qh2 22.Kf1 Qh1 0–1. xtom – halfprice (1970), kurnik, 2011.

5.e3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 c6).

5.e3 d6 6.Nf3 e5 7.c4 Be7 8.Nc3 h6 9.d4 e4 10.Nd2 d5 11.Be2 0–0 12.bc6 bc6 13.cd5 cd5 14.Ba3 Re8 15.0–0 Nc6 16.Be7 Re7 17.Nb3 a5 18.Nc5 Nb4 19.Qb3 Rb8 20.Nb5 Rb6 21.Rac1 Nh7 22.Rc3 Rg6 23.Kh1 Re8 24.f3 Bh3 25.Rg1 Qg5 26.g3 ef3 27.Bf3 Rf6 28.e4 Rf3? 29.Rf3+– Bg4 30.Rf4 Qh5 31.Rgf1 Ng5 32.Nd6 Rf8 33.Nf5 Nh3? 34.Nd7?? Rd8?? 35.Rg4!+– Rd7 36.Rg7 Kh8 37.g4 1–0. Ramkrishna,Kashelkar (2185) – Laxman,R R (2240), Rochess Open Rating, 2001.

5.e3 Be7 6.Nf3 0–0 7.Be2 ab5 8.ab5 Ra1 9.Ba1 d5 10.0–0 Bd7 11.bc6 bc6 12.Ne5 Be8 13.d3 Qc7 14.c4 Nbd7 15.Nd7 Nd7 16.cd5 cd5 17.Nd2 Bf6 18.Bf6 Nf6 19.e4 de4 20.de4= Bc6 21.Qc2 Qb7 22.Bf3 Rc8 23.Qd3 Nd7 24.h3 Ne5 25.Qe3 Nf3 26.gf3 Bb5 27.Rb1 Qc6 28.Nb3 e5 29.Rd1 Ba4 30.Rb1 Rb8 31.Qd3 g6 32.Nd2 Rb1 33.Qb1 Qc3 34.Nf1 Bd7 35.Kg2 Qc8 36.Ne3 Bh3–/+ 37.Kg3 Be6 38.Qd1 Qf8 39.Qh1 h5 40.Qh2 Qh6 41.Ng4?? Qf4 42.Kg2 hg4 43.fg4 Qh2 44.Kh2 Bg4 0–1. valpa – d2d4, playchess.de, 2002.

5.Nf3 ab5 6.ab5 Ra1 7.Ba1 d5 =.

5.c4 ab5

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

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

6.ab5 cb5?? 7.Ra8+– (7.Ra8 Na6 8.cb5+–) 1–0. Adelante (1680) – Fournier,Frederic (1650), Partie evaluee, 2009.

6.cb5 cb5 7.ab5 Ra1 8.Ba1 Qa5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 a6 4.c4 ab5 5.cb5 c5 6.a4 cb5 7.ab5 Ra1 8.Ba1 Qa5).

6.cb5 b6 7.Nf3 Be7 8.e3 0–0 9.Qc2 cb5 10.Ng5 h6 11.Bf6 hg5 12.ab5 Ra1 13.Ba1 Bf6 14.Bf6+/– Qf6 15.Qc7 Qb2 16.Nc3 Qc1 17.Ke2 Na6 18.Qb6 Nb4 19.Qd6 Bb7?? 20.Qb4+– (20.Qb4 Rc8 21.h4+–) 1–0. Fritz 8 – NN, 2005.

6.cb5 d5 7.e3 Bd6 8.Nf3 0–0 9.Be2 Bd7 10.0–0 cb5 11.ab5 Ra1 12.Ba1 Qa5 13.Bc3 Qb6 14.Qc2 Bb5? 15.Qb2+– (15…Nbd7 16.Bb5+–) 1–0. Trkn – guest1713, ICC, 2004.

5.c4 Bc5

6.d4 Bb4 7.Bc3 Qa5 8.Bb4 Qb4 9.Nd2 ab5 10.ab5 Ra1 11.Qa1 cb5 12.cb5 Qb5 =+.

6.e3 0–0 7.d4 Bb4 8.Bc3 Bc3 9.Nc3 Qa5 =.

6.e3 0–0 7.Be2 ab5=+ 8.ab5 Ra1 9.Ba1 d5 10.Nf3 dc4 11.Bc4 cb5 12.Bb5= Qa5 13.Nc3 Bd7 14.Qb1 Bb5 15.Nb5 Bb4 16.Nc3 Nbd7 17.0–0 h6 18.Qb2 Nc5 19.d4 Nd3=+ 20.Qa2?? Bc3–+ 21.Qa5 Ba5 22.Ne5 Ne5 23.de5 Ne4 24.Bd4 Rc8 25.f3 Nd2 26.Rd1 b5 27.e4 Rd8 28.Ra1 Nb3 29.Ra5 Na5 30.Bb6 Rd1 31.Kf2 Nc4 32.Bc5 Ne5 33.Ke2 Rc1 34.Bd4 Nc4 35.Kf2 b4 36.h4 e5 0–1. Brogger,Gunnar – Neatham,Graeme, IECC, 2000.

6.e3 0–0 7.Qf3 Be7 =.

6.e3 0–0 7.Nf3 d6 8.Qb3 b6?? 9.d4+– Ne4 10.dc5 Nc5 11.Qc3 f6 12.Nbd2 Bb7 13.Ng5 Qe7 14.Nge4 Ne4+/– 15.Ne4 d5? 16.Ba3 c5 17.Nd2 Nd7 18.Nf3 e5 19.cd5 Bd5 20.Bc4 Bc4 21.Qc4 Kh8 22.0–0 Rfe8 23.e4 ab5 24.ab5 h6 25.Bb2 Ra1 26.Ra1 Qd6 27.Qe2 Nf8 28.Rd1 Qc7 29.Qd3 Kh7 30.Bc1 Ne6 31.g3 Rd8 32.Qe2 Rd1 33.Qd1 c4 34.Qd5 Nd8 35.Nd2 c3 36.Nc4 Nb7 37.Qd3 Nc5 38.Qc3 Ne4 39.Qd3 f5 40.f3 Nf6 41.Qf5 Kh8 42.Qd3 Qc5 43.Be3 Qb5 44.Bb6 Qe8 45.Qd8 Qd8 46.Bd8 Nd5 47.Ne5 Kh7 48.Kf2 g5 49.g4 Kg7 50.h4 gh4 51.Bh4 Nf4 52.Bd8 Ng6 53.Nc6 Kf7 54.Kg3 Ke8 55.Bb6 Kd7 56.Nd4 Nh8 57.Nf5 Nf7 58.f4 Ke6 59.Kh4 Kf6 60.Kh5 Ke6 61.Nh6 1–0. Schmeding,Heinrich – Roenn,Ruth, Bahn–chS Bernkastel–Kues, 1995.

6.e3 cb5 7.cb5 d5 8.Nf3 =+.

5.e3 ab5

6.ab5 Ra1

7.Ba1 Qa5 8.Bc3 Bb4 9.Nf3 Bc3 10.Nc3 0–0 11.Be2 d5 12.0–0 Nbd7 13.Qa1 Qc7 14.bc6 bc6 15.Ba6 Ba6 16.Qa6 Nc5 17.Qa2 Nce4 18.Ne4 ½–½. xadrezpg (2290) – rhand (2380), net–chess.com, 2010.

7.Ba1 Qa5 8.Bc3 Qb6 9.Bd4 Qa5 10.c4 d5 11.Nf3 Nbd7 12.bc6 bc6 13.cd5 cd5 14.Bd3 Bd6 15.0–0 0–0 16.Nc3? e5–+ 0–1. xadrezpg (2315) – rhand (2385), net–chess.com, 2010.

7.Ba1 Qa5 8.Bf6 gf6 9.bc6 bc6 10.Nf3 Ba6 11.Be2 Be2 12.Qe2 Bg7 13.0–0+= 0–0 14.d4 d5 15.Nbd2 Nd7 16.c4 Qd8 17.h4 dc4 18.Qc4+/– Qc8 19.Rc1 Nb8 20.Ne4 Rd8 21.Ng3 Qa6 22.Qb4 Bf8+/– 23.Qc3 Qa3 24.Qc2 Bd6 25.Nh5 Be7 26.Nd2 Qa5+= 27.Qd1 f5 28.g3 Qc7 29.Nf3 Nd7 30.Qc2 Rc8 31.Qc3 Nf6 32.Nf4 Ne4 33.Qc2 c5 34.d5 ed5 35.Nd5+= Qd8 36.Ne7 Qe7 37.Nd4 Qe5 38.Nf3 Qg7 39.Kh2 h5 40.Qa2 Nf6 41.Nd4 Ng4 42.Kg2 Nh6? 43.Ne6 Qe5+/– 44.Nf4 Qe4 45.Kh3 Qf3 46.Nd5 Kf8?? 47.Qa6+– Rd8?? 48.Qh6 Ke8 49.Qc6 Kf8 50.Qc5 Kg7 51.Qd4 (51…Kg8 52.Nf6 Kg7 53.Nh5 Kh6 54.Qg7 Kh5 55.Qh7#) 1–0. Friberger,Torbjoern – Franzen,Anders, corr SSKK 2–738, 1990.

7.Ba1 cb5 8.Bb5 Qa5 9.Nc3 Bb4 10.Bd3 Nc6 11.Nf3 Nd5 12.Nd5 ed5 13.0–0 0–0 14.Bb2 d6 15.Qa1 f6 16.Qa5 Na5 17.Ra1 Nc4 18.Bc4 dc4 19.Ra4 c3 20.Rb4 cb2 21.Rb2 Rf7 22.Rb6 d5 23.Rd6 Rd7 24.Rd7 Bd7 25.Nd4 Kf7 26.c3 Ke7 27.f4 Kd6 28.Kf2 g6 29.Kf3 h6 30.h4 h5 31.Ke2 Kc5 32.d3 b5 33.Kd2 b4 34.cb4 Kb4 35.Kc2 Ba4 36.Kb2 Bd7 37.Nc2 Kc5 38.Kc3 Ba4 39.Nd4 Bd7 40.Nb3 Kb5 41.Kd4 Be6 42.Nc5 Bf7 43.Nd7 f5 44.Ne5 Be6 45.Ng6 Kc6 46.Ne5 Kd6 47.Nf3 Bf7 48.Nd2 Bg6 49.e4 de4 50.de4 fe4 51.Ne4 Ke6 52.Ke3 Kf5 53.Kf3 Bf7 54.Nd6 Kf6 55.Nf7 1–0. hal1958 – Brazil, playchess.de, 2002.

7.Ba1 cb5 8.Bb5 Qa5 9.Nc3 Bb4 10.Nge2 0–0 11.Qb1 b6 12.Qa2 Bb7 13.Qa5 ba5 14.f3 Rc8 15.Nd4 Nd5 (15...e5 16.Nde2=) 16.Nd5= Bd5 17.c3 Be7 18.Kd1 Bc4 19.Ba4 (19.Bc4 Rc4 20.Kc2 Na6=) 19...d5 20.Kc2 Na6 (better is 20...g6=) 21.d3?? (better is 21.Nc6 Bd6 22.Na5+=) 21...Bd3!–/+ 22.Kd3 Nc5 23.Kd2 Na4 24.Rb1 Nc5 25.Rb5 Bf6 (better is 25...a4!?–+) 26.Nc6+= Na4 (better is 26...Nd7 27.Na5 Bd8+=) 27.c4+= Kf8 (27...dc4?? 28.Bf6 Kf8 29.Na7+–) 28.Bf6 gf6 29.cd5 ed5 30.Na5 Nc5 31.Nb3 Nb3 32.Rb3 Ra8 33.Rb2 Ke7 34.f4 Ke6 35.h3 h5 36.Rc2 Ra3 37.g4 d4 38.Rc6 Ke7 39.gh5 Re3 40.Rc4 Rh3 41.Rd4 Ke6 42.Rd3 Rh5 43.Rf3 (43.Rg3 Rd5 44.Ke3 Ra5=) 43...Kf5+= 44.Kd3 Rh8 45.Ke3 Ra8 46.Kf2 Rd8 (46...Kg4 47.Rg3 Kf4 48.Rf3 Ke5 49.Re3 Kd6 50.Rd3 Ke6 51.Re3 Kd7 52.Rd3 Ke7 53.Re3 Kd8 54.Rd3 Ke8 55.Rf3+=) 47.Ke2 (47.Re3 Kf4 48.Rf3 Kg5 49.Rg3 Kf5 50.Rf3 Kg6 51.Rg3 Kh7 52.Rh3 Kg7 53.Rg3 Kf8+=) 47...Rd4+= Attacks the isolani on f4 48.Ke3 (48.Rc3 Re4 49.Kf3 Rf4 50.Ke3 Rb4+=) 48...Re4–/+ 49.Kd2 Rf4 50.Re3 Rd4 51.Kc3 Rd7 52.Rf3 Ke5 53.Rf1 f5 54.Re1 Kf4 55.Rf1 Kg4 56.Rg1 Kh4 57.Rf1 Kg5 58.Rg1 Kf6 59.Rf1 Rd5 60.Kc4 Ke6 61.Rf2 (61.Re1 Kd6–/+) 61...Rd7 (61...Rd1 62.Kc3–+) 62.Re2? (better is 62.Rf1!?–/+) 62...Kf6–+ 63.Rf2 (63.Re1 f4 64.Kc5 Kf5–+) 63...Kg5 64.Rg2 (64.Kc5 f4 65.Kc6 Rd8–+) 64...Kf4 65.Rg1?? (65.Kb5–+) 65...Ke3 66.Re1 (66.Rg3 Ke4 67.Rg1–+) 66...Kf2 67.Ra1 (67.Re8 f4 68.Re5 f3–+) 67...f4 68.Ra2 Kg3 0–1. Leon Manas,Jose Francisco (1715) – Navarro Molina,David (1945), Torneo de Ajedrez Pretemporada, 2009.

7.Ba1 cb5 8.Bb5 Qa5 9.Nc3 Bb4 10.Nge2 Nc6 11.0–0 0–0 12.f4 d5 13.Bd3 (13.Qe1 Bd7=) 13...Be7 14.Ng3 Nb4 15.Be2 (15.Bb5 Ne8+=) 15...b6 (15...Bd7 16.Bf3–/+) 16.Qb1 Bb7 (16...Ba6 17.Ba6 Na6 18.Nge2=) 17.Qb3 Rc8 (17...Qc5 18.Bb2=) 18.Bb2 Qc5 19.Rc1 Ne4? (better is 19...Ra8!?=) 20.Nce4+/– de4 21.Nh5 (better is 21.Ba3!? Qd6 22.Nf1+/–) 21...Nd5 (21...Rd8 22.Rd1 Nc2 23.Ng7+= (worse is 23.Bg7 Rd3 24.Bd3 ed3 25.Qd3 Qh5–+)) 22.Bd4 (22.c4 Nf6 23.Bd4 Qa5 24.Nf6 Bf6+=) 22...Qb4= 23.Qb4 Bb4 24.c3 (24.Bg7? Bd2 25.Rb1 Be3 (worse is 25...Rc2 26.Bd4–+) 26.Kf1 Rc2–+) 24...f6 (24...Bc5 25.Bc5 bc5 26.g4=) 25.Rb1+= Ba5 26.g4 Attacking the isolated pawn on b6 26...Re8 27.c4 (27.Ng3 Re7+=) 27...e5+= 28.fe5 (worse is 28.cd5 ed4 29.Bb5 Rc8+=) 28...fe5 29.Ba1 Nf6 30.Bc3 Bc3 (30...Bc8 31.Nf6 gf6 32.Kf2+=) 31.dc3 (31.Nf6 gf6 32.dc3 Re7+/–) 31...Nh5 32.gh5 Re7 33.Rb6 Kf8 34.Kf2 Rc7 35.Ke1 Ke7 36.Kd2 Bc8 37.Rb5 Kf6 38.Rb6 Ke7 39.Rb5 Kf6 40.c5 Be6 41.Rb6 (41.Ra5 Kf5+=) 41...Ke7 (41...Rc5?? 42.Bg4+–) 42.c6 Bd5 43.Bb5 Kd6 44.c4 Kc5 Exerts pressure on the isolated pawn (44...Bc6?? 45.Kc3 g5 46.hg6 hg6 47.Kb4+–) 45.Rb7 (45.Ra6 Bc6 46.Bc6 Rc6 47.Rc6 Kc6+–) 45...Rb7+= 46.cb7 Bb7 47.Kc3 h6 (47...Bc8 48.Ba4+=) 48.Be8 Bc8 49.Bf7 Bg4 50.Kb3 Be2 51.Kc3 Bd1 52.Kd2 Bb3 53.Kc3 Ba2 54.Bg8 Bb1 ½–½. Morriss,Pete (2030) – Zakharov,Alexander (2330), Katerini GRE ,World Seniors Ch, 2014.

7.Ba1 cb5 8.Bb5 Nc6 9.Nf3 Be7 10.0–0 0–0 11.Nc3 d5 12.Ne2 Qc7 13.Ned4 Na7 14.Be2 Bd7 15.Qb1 e5 16.Ne5 Qe5 17.Nc6 Qd6 18.Na7 Ne4 19.c4 Nd2 20.Qb2 Bf6 21.Qd2 Ba1 22.Ra1 Be6 23.Nb5 Qe5 24.Qd4 Qg5 25.f4 Qh4 26.f5 Qd4 27.Nd4 Bc8 28.cd5 g6 29.e4 Kg7 30.Bg4 h5 31.Bf3 Re8 32.Nb5 Bd7 33.Nd6 Rb8 34.Ra7 Kf6 35.Rb7 Rb7 36.Nb7 gf5 37.Nc5 Bb5 38.ef5 Ke7 39.Ne4 h4 40.f6 Kd8 41.Nd6 Be8 42.Ne8 Ke8 43.Bg4 Kd8 44.Bh5 Ke8 45.d6 Kd7 46.Bf7 Kd6 47.Bb3 Kd7 48.f7 Ke7 49.g3 hg3 50.hg3 Kf8 51.g4 Kg7 52.g5 Kf8 53.g6 Kg7 54.Kg2 Kf8 55.Kg3 Kg7 56.Kg4 Kf8 57.Kg5 Kg7 58.f8Q Kf8 59.Kf6 1–0. Buczinski,Henryk – Bierak, Siemianowice Slaskie, 1965.

7.Ba1 cb5 8.Bb5 Qa5 9.Nc3 Bb4 10.Nge2 0–0 11.0–0 d5 12.Nd4 Bd7 13.Nb3 Qb6 14.Bd3 e5 15.f4 e4 16.Be2 Be7 17.g4 Bc6 ½–½. pcmvr (2770) – silvana (2610), net–chess.com, 2006.

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

7.Ba1 Bd6 8.Nf3 h6 9.Be2 0–0 10.0–0 Be7 11.bc6 bc6 12.c4 d5 13.cd5 cd5= 14.Bf6 Bf6 15.d4 Ba6 16.Ba6 Na6 17.Qa4 Qb6 18.Rc1 Rb8 19.Nbd2 Qb5 20.Rc8 Kh7 21.Rb8?? (better is 21.Qc2 g6 22.Rb8 Qb8 23.Qc6=). tanto (1730) – bigal (2015), net–chess.com, 2003.

7.Ba1 Be7 8.Nc3 0–0 9.Nf3 d5 10.Be2 Nbd7 11.Nd4 e5 12.bc6= ed4 13.cd7 dc3 14.dc8Q+= cd2 15.Qd2 Qc8 16.0–0 Rd8 17.Bd3 Ne4 18.Qa5 Nc5 19.Be2 Qe6 20.h3 b6 21.Qc3 Bf6 22.Qa3 Ne4 23.Bg4 Qc6 24.c3 g6 25.Be2 Kg7 26.Qb2 Bc3–/+ 27.Qb1 Nd2 28.Bc3= Qc3 29.Qa1 Qa1 30.Ra1 d4 31.Bd3 de3–+ 32.Be2 ef2 33.Kf2 Ne4 34.Ke3 Nc3 35.Bf3 Re8 36.Kf4 h6 37.Kg3 Ne2 38.Kf2 Nd4 39.Bc6?? Nc6 40.Rb1 Rb8 41.Rb5 Nd4 42.Rd5 Nf5 43.g4 Ne7 44.Rb5 Nc6 45.Ke3 Ne7 46.Kd4?? f5–+ 47.Ke5 fg4 48.hg4 Nc6 49.Kd6 Na5 50.Kc7 Ra8 51.Kb6 Nc4 52.Kc5 Ne3 53.Rb7 Kf6 54.Kd4 Ng4 55.Rb6 Kg5 56.Rb5 Kh4 57.Rb4 g5 58.Kd5 Rf8 59.Ke6 Rf4 60.Ke7 Rf7 (60...Rf7 61.Kf7 Kg3–+; better is 60...Rb4 61.Kd6 h5–+) 0–1. XXXtremis – Aegean, Caissa.com, 2004.

7.Ba1 Be7 8.Nf3 d5 9.c4 0–0 10.Nc3 Qd6 11.d4 dc4 12.Bc4 Rd8 13.0–0 cb5 14.Nb5+= Qb4 15.Qb3 Qb3= 16.Bb3 Ne4 17.Bc2 Nd6 18.Nd6 Rd6 ½–½. Valverde Lopez,Mario – Ramirez,Freddy, corr CRA–ch Costa Rica, 1974.

4.a4 Bb4

5.Bc3 Be7 6.Nf3 0–0 7.e3 cb5 8.ab5 Ne4 9.Bd4 a5 10.ba6 ba6 11.Nc3 f5 12.Ne4 fe4 13.Ne5 d6 14.Nc4 Bh4 15.g3 Bf6 16.c3 Bd4 17.cd4 d5 18.Ne5 Qf6 19.f4 ef3 20.Kf2 Nd7 21.Nf3 e5 22.d3 Rb8 23.Be2 e4 24.de4 de4 25.Kg1 ef3 26.Bc4 Kh8 0–1. marus1 – Pertinax1, internet, 2001.

5.e3 0–0 6.Bd3 cb5 7.ab5 a5 8.ba6 ba6 9.Ra4 a5 10.Bf6 Qf6 11.c3 Bb7 12.Qh5 g6 13.Qg4 Bc6 14.Ra2 Bd5 15.Rb2 Nc6 16.f4 Qg7 17.Qe2 f5 18.Bc4 Bc4 19.Qc4 Rab8 20.Nf3 Be7 21.Rb8 Rb8 22.0–0 g5 23.fg5 Bg5 24.e4 f4 25.d4 Rb2 26.Nbd2 Bd8 27.e5 Bb6 28.Qa6 Kf7 29.Qc8 Ke7 30.Kh1 Qg6 31.Qa6 Qc2 32.Qc4 Ke8 33.Ra1 Ne7 34.Re1 Nf5 35.Rf1 Kd8 36.Qa6 Ne3 37.Qa8 Kc7 38.Rg1 Qc3 39.Qf8 Qd3 40.Rc1 Rc2 41.Qd6 Kc8 42.Rg1 Bc7 43.Qf8 Bd8 44.Qf4 Rd2 45.Nd2 Qd2 46.g4 Bb6 47.Qf8 Kb7 48.Qf3 Kc7 49.Qe4 Nd1 50.Qe1 Qd4 51.Qd1 Qg1 0–1. marus2 – Pertinax1, internet, 2001.

5.e3 d5 6.c4 0–0=+ 7.Nf3 Nbd7 8.Be2 dc4 9.Bc4 Nb6 10.Bb3 Bd7=+ 11.0–0 cb5–/+ 12.ab5 Bb5 13.Nc3? Bf1–+ 14.Qf1 a6 15.d4 Rc8 16.Rc1 Nfd5 17.Nd5 Nd5 18.Rc8 Qc8 19.Bd5 ed5 20.g3 f6 0–1. vhilts (2260) – eruditio (2230), net–chess.com, 2010.

5.Nf3 d5 6.e3 Nbd7 7.Nc3 0–0 8.Be2 Nc5 9.0–0 Nce4 10.bc6 bc6 11.Ne5 Nc3 12.dc3 Bd6 13.c4 Qc7=+ 14.f4 Ne4 15.cd5 cd5 16.Bd3 f6 17.Nf3 Bc5 18.Bd4=+ Qb6 19.c4= Bd4 20.Nd4+= e5? 21.fe5+– fe5 22.Rf8 Kf8 23.Be4 de4 24.Qh5 ed4 25.Rf1 Kg8 26.Qe8# 1–0. pereira – smart, internet, 2009.

5.Nf3 d6 6.c3 Ba5 7.Na3 d5 8.e3 0–0 9.Be2 Nbd7 10.c4 Re8 11.0–0 e5 12.d4 e4 13.Ne5 Bc7 14.bc6 Ne5 15.de5 Be5 16.cb7 Bb7 17.Rb1 Bb2 18.Rb2 Bc6 19.Rb4 Rb8 20.Qb3 Rb4 21.Qb4 Qd7 22.a5 d4 23.ed4 Qd4 24.Rd1 Qe5 25.Nc2 Rb8 26.Qa3 Bd7 27.Ne3 h6 28.h3 Qb2 29.Qd6 Qb4 30.c5 Be6 31.Nc2 Qb2 32.Nd4 Re8 33.c6 Bc8 34.Qc5 Qb8 35.Nb5 Qe5 36.Qe5 Re5 1–0. Pommerel,Wim – Bankwitz, corr CiF, 1984.

4.a4 cb5

5.ab5 a5 6.ba6 ba6 7.e3 Be7 8.Nf3 0–0 9.Be2 Nc6 10.0–0 a5 11.c4 (11.Nc3 d5 (11...Rb8 12.Ba3 d6 13.Nb5 Bb7 14.c4 d5 15.Be7=) 12.Nb5 (12.Bb5 Nb4 13.d3 Qc7 14.Qd2 Bd7 15.Bd7=; 12.Ra4 Bd7 13.Bb5 Rb8 14.Qa1 Bb4 15.Rb1+=) 12...Qb6 13.Nfd4 Bd7 14.Nc6 Qc6 15.Be5=; 11.Na3 Rb8 12.Bf6 Bf6 13.d4 e5 14.de5 Ne5 15.Nd4=) 11...Qb6 (11...Rb8 12.Qc2 (12.Bf6 Bf6 13.d4= e5 14.Nc3 ed4 15.ed4=; 12.Bc3 Ne4 13.Qc2 d5 14.d4 Nb4 15.Bb4=) 12...Bb7 13.d4 d6 14.Qa4 Ne4 15.Nc3+=) 12.Bd4 (12.Bf6!? Bf6 13.d4= d6 14.Nc3 Qc7 15.Qb1=) 12...Nd4+= 13.Nd4 Bb7 14.Bf3 (14.Nc3 Bb4 15.Na4=) 14...d5 (14...Rfb8 15.Nc3+=) 15.cd5 Nd5 16.Bd5 Bd5 17.Nc3 Bb7 18.Qb3 (18.Qg4!?+=) 18...Qb3–/+ 19.Nb3 Bb4 20.Rfc1 Bc6 21.d4 a4 22.Nc5 a3 23.Na2 Bc5 24.Rc5 Bd5 25.Nc3 a2 (25...Bb3 26.Kf1+=) 26.Nd5–/+ ed5 27.Rcc1 (27.Rd5?? Rfb8 28.h3 Rb1 29.Rb1 ab1Q (29...ab1N?! 30.Rc5–/+; 29...ab1B?! 30.f3+=) 30.Kh2 Qb8 31.g3 Ra2–+) 27...Rfc8 28.Rc8 Rc8 29.g4 Rc2 30.Kg2 Kf8 31.h4 Ke7 32.Kg3 Ke6 33.f4 f5 34.gf5 (34.h5 g6–/+) 34...Kf5–+ 35.Kf3 h5 36.Kg3? Ke4 0–1. hal1958 – Rebel, playchess.de, 2002.

5.ab5 Qb6 6.e3 d6 7.Bd4+= Qc7?? 8.b6!+– Qd8 9.Ra7 Ra7 10.ba7 Na6 11.a8Q 1–0. Anonymous – Anonymous, internet, 2011.

5.ab5 Bc5 6.e3 d5 (--> 4.a4 d5 5.e3 cb5 6.ab5 Bc5).

5.ab5 Nd5 6.c4 Nb6 7.e3 Qc7 8.d3 d5 9.cd5 Nd5 10.Nd2 Bd7 11.Rc1 Qd6 12.d4 a6 13.ba6 Ra6?? 14.Ba6+– Na6 15.Ngf3 Nab4 16.0–0 Nd3?? 17.Qc2 Nc1+= 18.Rc1 Be7 19.Ne5 0–0?? 20.Ndc4?? Qc7+= 21.Nd7 Qd7 22.Ne5 Qd6 23.Ra1 h6 24.Ba3 Qd8 25.Be7 Qe7 26.e4 Nf4 27.g3 Nh3 28.Kg2 Ng5 29.f4 Nh7 30.Ra7 Qb4 31.Nd7 Rd8? 32.Nc5?? Rc8 33.Rb7?? Qd4 34.Rb5= Nf6 35.e5 Nd5 36.Ne6?? Ne3 37.Kf3 fe6 38.Qc8+– Kh7 39.Qe6 Qe4 40.Ke4 (40.Ke4 h5 41.Rb6 Kh8 42.Qg6 Kg8 43.Rb8) 1–0. iczker – przylot, kurnik, 2011.

5.ab5 a6

6.Nc3 d5 7.e3 Bc5 8.h4 0–0 9.h5 Bd7 10.h6 g6 11.Nf3 Re8 12.Bd3 Bf8 13.Ne5 Bc8 14.b6 Qb6–/+ 15.Ra2 Nc6 16.Nc6 bc6 17.Qa1 e5 18.Ne2 Qc7 19.f4 Bd6 20.g3 Ng4 21.Rf1 d4 22.ed4 ef4 23.d5? fg3 24.Ba3 g2 25.Rg1 Be5 26.Bb2 Bg3 27.Kd1 Nf2 28.Kc1 Nd3 29.cd3 cd5 30.Kd1 Re2! 31.Ke2 Bg4 32.Ke3 Qc5 33.Bd4 Re8 0–1. xtom (1705) – marcinophon (1755), kurnik, 2011.

6.c4 ab5?? 7.Ra8+– Qc7 8.cb5 Bc5 9.Bf6 gf6 10.Rb8! Qb8 11.e3 b6 12.Nf3 Bb7 13.d4 Bb4 14.Nbd2 e5 15.Be2 ed4 16.ed4 Rg8 17.0–0 Kf8 18.Kh1 Qf4 19.Rg1 Rg6 20.Qc2 Bd6 21.g3 Qh6 22.Bf1 Rg5 23.Bg2 Rh5 24.h4 f5 25.Nh2 f4 26.Bb7 fg3 27.fg3 Qe3 28.Ndf3 Qe7 29.Qc8 Kg7 30.Be4! f5 31.Bd3 Kf6 32.Ng5 Qe3 33.Qh8 Ke7 34.Bf5 Bg3 35.Rg3! Qg3 36.Qe5 Kf8 37.Qg3 Rg5+– 38.Qg5 d5 39.Qg8! Ke7 40.Qh7 (40.Qh7 Kf8 41.Be6 Ke8 42.Qf7 Kd8 43.Qd7; 40.Be6 Kd6 41.Qf7 h6 42.Qd7) 1–0. ludice (1635) – uelton, kurnik, 2011.

6.Nf3 Bc5 7.e3 0–0 8.d4 Bb6 9.c3 d5= 10.Nbd2 Nbd7 11.ba6 ba6 12.Bd3 Bb7 13.0–0 Rb8 14.Qc2 Qc8 15.c4 Qc6 16.c5 Rfc8 17.Nb3 Ne4 18.Nfd2 e5 19.Ne4 de4 20.Bc4 ed4 21.ed4 Bc7 22.d5 Qg6 23.c6 Bc6 24.dc6+= Qc6 25.Rfd1 Nf6? 26.h3 Kh8 27.Qe2 e3 28.fe3 Bg3 29.Rac1 (29.Rac1 Ne4 30.Bf7+–) 1–0. Luzuriaga,Norberto Horacio (2375) – Bonatti,Aldo (2020), ICCF WSTT/3/06/4, 2006.

5.ab5 b6

6.c4 Bb7 7.e3 d5 8.Nf3 Nbd7 9.d4 Bb4 10.Bc3 Qe7 11.Qb3 Bc3 12.Nc3 0–0 13.Be2 Rac8 14.0–0 a6? 15.ba6+– Ba8 16.cd5 Nd5 17.Rfc1 Nc3 18.Rc3 Qf6 19.Rac1 Rc3 20.Qc3 h6 21.Qc7 Nb8? 22.a7 Na6 23.Qb6 e5 24.Qf6 gf6 25.de5 Bf3 26.Bf3 fe5 27.a8Q Ra8 28.Ba8 Nc5 29.Rc5 1–0. carocan (1735) – nebojimsa, kurnik, 2011.

6.c4 Bb7 7.Nf3 g6 8.d4 Bg7 9.e3 0–0 10.Nc3 a6 11.Be2 ab5 12.Nb5 Ra1 13.Qa1 Nc6 14.Nd6 Qc7 15.c5 bc5 16.dc5 Nb4 17.Bf6?? Nc2–+ 18.Kd2 Na1 19.Bg7 Kg7 20.Ra1 Bf3 21.Bf3 Qc5 22.Ne4 Qe5 23.Rc1 Qh2 24.g3 d5 25.Rh1 Qh1! 26.Bh1 de4 27.Be4 Rd8 28.Ke2 h6 29.f4 f6 30.Kf3 e5 31.g4 ef4 32.Kf4 Rb8 33.Bd5 Rb4 34.e4 Kf8 35.Kf3 Ke7 36.Bg8 Kd6 37.Bh7 g5 38.Bf5 Ke5 39.Ke3 Rb3 40.Ke2 Kf4 41.Kf2 Rb2 42.Ke1 Kg3 43.Kf1 Ra2 44.Ke1 Rb2 45.Kf1 Rf2 46.Kg1 Rf3 47.Bd7 Rf4 48.Bf5 Kf3 49.e5 fe5 50.Kf1 Ke3 51.Ke1 e4 52.Bc8 Rf3 53.Kd1 Rg3 54.Bb7 Rg4 55.Kc2 Kf3 56.Kd2 Kf2 57.Kc3 e3 58.Kc2 e2 59.Ba6 e1Q 60.Bd3 Rg3 61.Kb3 Qe3 62.Kc4 Qd3 63.Kc5 Qd2 64.Kc4 Rc3 65.Kb4 Qb2 66.Ka4 Ra3 0–1. iczker – mzs78, kurnik, 2011.

6.e3 d5 (--> 4.a4 d5 5.e3 cb5 6.ab5 b6).

5.ab5 d5

6.d4 Be7 7.e3= Bd7 8.Bd3 Qb6 9.Nc3 Bb4 10.Nge2 Bb5–/+ 11.Bb5 Qb5 12.0–0 Qb6 13.Ba3 0–0 14.Rb1= Nc6 15.Na4 Qa5=+ 16.Bb4 Nb4 17.Nc5 b6–/+ 18.Nb3 Qa6 19.Ra1 Qb7 20.Nc3 Nc6 21.Nb5–/+ Rfd8 22.h3 a6 23.Nc3 b5 24.Na5 Na5–+ 25.Ra5 Qb6 26.Qa1–/+ Rdc8 27.Rc1 Rc4 28.Ne2 Ne4 29.f3 Nd6–+ 30.c3 Rc6 31.Qa3?? Nc4 (31...Nc4 32.Ra6 Qa6 (32...Na3?? 33.Ra8 Rc8 34.Rc8 Qd8 35.Rd8) 33.Qa6 Rca6–+) 0–1. wood – Iwill, Live Game Caissa's Web, 2005.

6.Nf3 Nbd7 7.e3 Bd6 8.Be2 0–0 9.0–0 Nb6 10.d3 Bd7 (10...Qc7 11.c4=) 11.c4 a6 12.ba6 Ra6 13.Ra6 ba6 14.cd5 (14.Nbd2 dc4 15.Nc4 Nc4 16.dc4 Bc6+=) 14...Nbd5 (14...Nfd5 15.Nc3 f6=) 15.d4 (15.Nbd2 Bb4+=) 15...Be7 (15...Qb6!? 16.Ba3 Rc8 17.Bd6 Qd6=) 16.Ne5= Qb6 (16...Qc7 17.Na3+=) 17.Nd7 Nd7 18.Ba3 (18.Qc2!?+=) 18...Ba3= 19.Na3 Nc3 20.Qd3?? (20.Qc2 Qb4 21.Ra1 Ne2 22.Qe2 a5=) 20...Ne2?? (better is 20...Qb2 21.Nc2 Ne2 22.Qe2 Rc8–+) 21.Qe2= Rc8 22.Ra1 Qa5 23.Qf1 (23.g3 h6=) 23...Qc3+= 24.g3 Nf6 (24...h6 25.Qb1=) 25.Ra2 Qc1 26.Qc1 Rc1 27.Kg2 Rc6 28.Nb1 Kf8 29.Nd2 Ke7 30.Nf3 Nd5 31.Ne5 Rb6 32.Nc4 Rc6 33.Ne5 Rb6 34.Nd3 Nc7 35.Nc5 Attacks the isolani on a6 35...Kd6 ½–½. Latka,Tadeusz (1680) – Jedrocha,Katarzyna, Cztery pory roku w KKSz – ZIMA Poland, 2012.

5.ab5 Be7

6.c4 0–0 7.e3 a6 8.Nc3 ab5?? 9.Ra8+– bc4 10.Rb8 Qc7 11.Ra8 b6 12.Nf3 Qb7 13.Qa4 d5 14.Ra7 Qb8 15.Re7 Ne4 16.Ne4 de4 17.Be5 Qe5 18.Ne5 Rd8 19.Qe8! Re8 20.Re8# 1–0. pereira – wghw, internet, 2009.

6.c4 0–0 7.e3 Qc7 8.Nf3 d6 9.Be2 Nbd7 10.d4 b6 11.Nfd2 Bb7 12.Bf3 d5 13.Ba3 Ba3 14.Na3 dc4 15.Nac4 Nd5 16.Qb3 N7f6 17.0–0 Ne8 18.Rac1 Qe7 19.Qa3 Qd7 20.Ne5 Qd6 21.Qd6 Nd6 22.Bd5 Bd5 23.Rb1 Rac8 24.f3 f6 25.Nd3 Nc4 26.Nc4 Bc4 27.Rfd1 Rc7 28.Nf2 Rfc8 29.Ne4 Bd5 30.Nf2 Rc3 31.e4 Bb3 32.Re1 Rd8 33.Nd1 Bd1 34.Red1 Rc4 35.d5 ed5 36.ed5 Rc5 37.d6 Kf7 38.Ra1 Rd7 39.Rac1 Rc1 40.Rc1 Rd6 41.Rc7 Kg6 42.Ra7 Rd5 43.Kf2 Rb5 44.g4 f5 45.h3 f4 46.h4 Rb2 47.Ke1 h6 48.Ra4 b5 49.Rf4 b4 50.h5 Kh7 51.Rd4 Kg8 52.f4 Kf7 53.Rd2 Rb3 54.Ke2 Rg3 55.Rd7 Kf8 56.Rd8 Ke7 57.Rb8 Rg4 58.Rb4 Rh4 59.Rb5 Rf4 60.Ke3 Rh4 61.Kf3 Kf6 62.Kg3 Re4 63.Rb6 Re6 64.Rb5 Re5 65.Rb6 Kg5 66.Rg6 Kh5 67.Rg7 Rg5 68.Rg5= hg5 ½–½. hal1958 – ChessWorm, playchess.de, 2003.

6.Bd4 d5 7.Ba7 0–0 8.Bb6+= Qb6 9.Ra8 Nbd7 10.Rc8?? Rc8=+ 11.Nf3 Qb5 12.e4? de4?? 13.Bb5+– (13…ef3 14.g3+–) 1–0. chevin – welshman, Caissa.com, 2004.

6.g3 0–0 7.Nf3 d5 8.Bg2 Bd7 9.Nc3 Bb4 10.Qb1 a6 11.0–0= Bc3 12.Bc3 Bb5 13.Nd4 Bc6 14.Nc6 bc6 15.Qb7 Nbd7= 16.Qc6 Qc8 17.Qd6 Qd8 (better is 17...Qc4!?=). nn (2235) – super knight (1645), internet, 2007.

4.a4 Qb6

5.c4 a5 6.Nc3 d5 7.e3 Bb4 8.Qc2 Nbd7 9.d4 c5 10.dc5 Nc5 11.Nf3 Nce4 12.Bd3 Nf2 13.Kf2 Ng4 14.Kg3 Ne3 15.Qe2 Bd6 16.Kh3 (16.Kh3 Bf4 17.Ne5 Be5 18.Nd1 Bb2 19.Ne3 e5 20.g4 Ba1 21.Nd5–+). iczker – georgea (1770), kurnik, 2011.

5.c4 d5 6.d4? dc4–+ 7.Nc3 Nd5 8.e4 Nc3 9.Bc3 a6 10.Bc4= Be7 11.Ne2 0–0 12.f4 Nd7 13.0–0 ab5 14.ab5 Ra1 15.Qa1 cb5 16.Rb1 e5 17.Kh1 ef4 18.d5 f6?? 19.Rb5?? Qd6 20.Bb4 Qb4 21.Rb4 Bb4 22.d6 Kh8 23.h3?? Ne5 24.Qb2 Bd6 25.Qd4 Bb8 26.Nf4?? Nc4–+ 27.Qc4 Bf4 28.g4 Rd8 29.Qf7 Be5 30.Qc4 b6 31.Kg2 Bb7 32.Kf3 h6 33.Qb3 Ba6 34.Qb6 Rd3 35.Kf2 Bc4 36.Qb4 Bb3 37.Qf8 Kh7 38.Qf7 Bg3 39.Ke2 Bf7 40.Kd3 Bg6 41.Ke3 h5 42.Kf3 Be5 43.gh5 Bh5 44.Ke3 Kh6 45.Kf2 Kg5 46.Kg2 Be2 47.Kf2 Bd3 48.Ke3 Be4! 49.Ke4 Kh4 50.Kf5 Kh3 51.Ke4 g6 52.Kf3 f5 53.Kf2 g5 54.Kf3 g4 55.Kf2 g3 56.Kg1 Bd4 57.Kf1 g2 58.Ke2 g1Q 59.Kd3 Qg4 60.Kc4 Bb2 61.Kd5 f4 62.Ke4 f3 63.Kd5 Qd4 64.Ke6 Qe5 65.Kd7 ½–½. iczker – sagonek, kurnik, 2011.

5.e3 a6 6.c4 ab5 7.ab5 Ra1 8.Ba1 d5 9.bc6 bc6 10.cd5 cd5 11.Nf3 Be7 12.Be2 Bd7 13.0–0 0–0 14.Nc3 Nc6 15.Qb1 Rb8 16.Qb6= Rb6 17.Rb1 Rb1 18.Nb1 h6 19.Ne5 Ne5 20.Be5 Ne4 21.d4 f6 22.Bc7 Nd6 23.Nc3 g5 24.Bd6 Bd6 25.Bb5 Bb5 26.Nb5 Be7 27.f3 h5 28.e4 de4 29.fe4 f5 30.ef5 ef5 31.Kf2 Kf7 32.d5 Bc5 33.Kf3 Ke7 34.h3 Kd7 35.g4 hg4 36.hg4= fg4 37.Kg3 Bd6 38.Kg4 Bf4 39.Nd4 Kd6 40.Ne6 Bd2 41.Ng5 Bg5 42.Kf5 Kd5 43.Kg6 Bd2 44.Kh5 Ke5 45.Kh4 Kf4 46.Kh3 Kf3 47.Kh2 Be3 48.Kh1 Kg3 ½–½. Seitner,Ralf – Moesl,Sebastian, Mittelfranken–ch U17, 1997.

5.e3 cb5 6.ab5 d5 (--> 4.a4 d5 5.e3 cb5 6.ab5 Qb6).

5.e3 d5

6.a5 Qc5 7.Ba3 Qb5 8.Bb5 cb5 9.Bf8 Rf8 +–.

6.Nf3 Bd6 7.a5 Qc7 8.Bf6 gf6 9.Nc3 =.

6.Nf3 Bd7 7.Nc3 Bb4 8.Be2 Bc3 9.Bc3 cb5 10.Bd4 Qc7 11.ab5 a6 12.0–0 h6 13.Qb1 Ne4 14.Rc1 f6 15.c4 dc4?? 16.Qe4+– e5? 17.Rc4 Qd6 18.Qg6 Kf8 19.Bc5 Qc5 20.Rc5 b6 21.Ne5! Be8 22.Rc8 (22...Ke7 23.Qg7 Ke6 24.Qh8 Bg6 25.Ng6 Ra7 26.Qe8 Re7 27.Qe7 Kf5 28.Nh4 Kg5 29.f4 Kh4 30.Qf6#) 1–0. Lauermann,Answarth – Feenstra,Oliver, Kassel op, 1994.

6.Bf6 gf6 7.a5 =.

4.a4 Bc5

5.c4 0–0 6.d4 Be7 7.Nd2 cb5 8.ab5 a6 9.c5 b6 10.e3 bc5 11.dc5 Bc5 12.Ngf3 Qb6 13.Bd4 Bd4–/+ 14.Nd4 Bb7 15.f3 d5 16.Be2 e5 17.Nf5 Re8 18.0–0? Nbd7 19.ba6–/+ Ba6 20.Ba6 Ra6 21.Ra6 Qa6 22.Qb3 Rb8 23.Qc3 Qe2 24.Ne7 Kf8 25.Nc6 Rc8?? 26.Rc1?? Nb6?? 27.Qb4 Kg8+– 28.Nf1 Nc4? 29.Ne7 Kf8 30.Nc8 Ke8 31.Rc4! Kd8 32.Qe7# 1–0. chevin – WhiteMamba, Caissa.com, 2004.

5.d4 Bb4 6.c3 Be7 7.bc6 Nc6 8.c4 =+.

5.d4 Bb6 6.Nf3 0–0 7.e3 d5 8.Bd3 Nbd7 9.Nbd2 a6 10.c4 ab5= 11.ab5 Ra1 12.Qa1 cb5 13.c5 Bc7 14.Bb5 Nb8 15.0–0 Bd7 16.Bd7 Qd7 17.Ne5 Be5 18.de5+= Ne8 19.Bd4 Nc6 20.Rb1 f6 21.f4 fe5 22.fe5 Qf7 23.Nf3 Nc7 24.Rf1 Qe8 25.Qb2 Qb8 26.Rb1 Na5 27.Qb6 Nc4 28.Qb7 Qb7 29.Rb7+/– Na6 30.Ng5+– Nd2 31.Nf3?? Ne4 32.c6+/– Rc8 33.Rb6 Nb8 (34.c7 Nd7+/–; 33...Nc7 34.Kf1+/–). bby – move10, Live Game Caissa's Web, 2004.

5.e3 a6 6.d4 Bb4 7.c3 Ba5 8.Nd2 0–0 9.Ngf3 d5 10.Bd3 c5 11.dc5 Nbd7 12.c6 bc6= 13.bc6 Nc5 14.Bc2 Qc7 15.0–0 Qc6 16.Ne5 Qc7 17.f4 Rb8 18.Rb1 Bd7 19.Ndc4?? dc4–+ 20.Nd7 Ncd7 21.Ba3 Rfd8 22.Rb8 Qb8 23.Qd4 Bb6 24.Qc4 Be3 25.Kh1 Nb6 26.Qe2 Bf4 27.Be7 Rd2 28.Qf3 Rc2 29.Bf6 gf6 30.g3 Be5 31.Qg4 Kh8 32.Qe4 Qa8 33.Qa8 Na8 34.Rd1 Kg7 35.Rd8 Nc7 36.Rc8 Rc3 37.a5 Ra3 38.Kg2 Ra5 0–1. ludice (1695) – jaymemaceio (1740), kurnik, 2011.

5.e3 cb5 6.ab5 b6 7.Ra4 Bb7 8.d4 Be7 9.Nd2 0–0 10.Ngf3 d6 11.Bd3 Nbd7 12.0–0 e5 13.c4 Bf3 14.Qf3 ed4 15.Bd4 Nc5 16.Bc5 dc5 17.Ra3 Nd7 18.Be4 Rb8 19.Ra7 Nf6 20.Rd1 Ne4 21.Ne4 Qe8 22.Rdd7 Ra8 23.g3 Ra7 24.Ra7 Bd8 25.Nd6 Qe6 26.Qd5 Qd5 27.cd5 Bf6 28.Rb7 Rd8 29.Rb6 Be7 30.Nc4 Rd5 31.Rc6 Rd8 32.b6 Rb8 33.Rc7 Bd8 34.Rc5 Be7 35.Rc6 h6 36.Nd6 Bd6 37.Rd6 Rb7 38.e4 Kf8 39.f4 Ke7 40.e5 Rd7 41.Rc6 Rb7 42.Kf2 Kd7 43.Rd6 Kc8 44.Ke3 Rd7 45.Kd4 f6 46.Rd7 1–0. Trkn – Gibbs, itsyourturn.com, 2000.

5.e3 0–0

6.Nf3 a6 7.Nc3 d5 8.Be2 Nbd7 9.0–0 ab5 10.ab5 Ra1 11.Qa1 Qc7 12.h3 Ne5?? 13.Ne5+– Qe5 14.d4 Bd4 15.ed4 Qd4 16.bc6 bc6 17.Na4 Qa7 18.Bd4 Qa5 19.f4 Bd7 20.Nb6 Qd2 21.Rf3 Qe2 22.Bf6 gf6 23.Rg3 (23.Rg3 Qg4 24.Rg4 Kh8 25.Qf6#) 1–0. pierre – rayden, internet, 2008.

6.Nf3 a6 7.Bd3 h6 8.0–0 ab5 9.ab5 Ra1 10.Ba1 Qc7 11.Bf6 gf6 12.Nc3 f5 13.e4 Bd6 14.ef5 Kh8 15.Qa1 f6 16.Ne4 Be7 17.Nh4 Kg7 18.Ng6 d5 19.Nf8 de4 20.Ne6 Be6 21.Be4 Bc4 22.d3 Bb5 23.Qd1 Kh8 24.Qh5 Bf8 25.c4 Ba6 26.Re1 Nd7 27.Bf3 Ne5 28.Bd1 Qg7 29.Re3 Qg5 30.Qe8 Qg7 31.Rg3 Qe7= 32.Qe7 Be7 33.d4 Nd7?? 34.Bb3 Bf8 35.Re3 Kg7 36.h4 c5+= 37.d5 Ne5 38.Re4 b5 39.cb5 Bb5 40.f4 c4 41.Bc2 Nd3 42.Kf1? c3 43.Kg1 Nb4 44.Rb4? Bb4 45.g4 Bc4 46.Kf2 Bd5 47.Ke3 Bc4 48.g5 h5 49.g6? Bc5 50.Kf3 Kf8 51.Kg2 Ke7 52.Kf3 Kd6 53.Ke4 Bb6 54.Kf3 Kc5 55.Kf2 Kb4 56.Ke1 Bb3 57.Be4 (better is 57.Bb3 Kb3 58.g7+–) 0–1. Zbynek,J – Beran,Josef, Schneider Bohemia op–C, 2000.

6.Nf3 d5 7.c4 cb5 8.ab5 Nbd7 9.Nc3 dc4 10.Bc4 Nb6 11.Be2 Nbd5 12.0–0 Nc3 13.dc3 Qd1 14.Rfd1+= b6 15.Ne5+/– Bb7 16.Nd7 Nd7 17.Rd7 Bc8 18.Rc7 Bd6 19.Rca7 Ra7 20.Ra7 h6 21.c4+– Bc5 22.Bd4 Re8 23.Bc5 bc5 24.b6 Rd8 25.b7 Bd7 26.Ra8 (26.Ra8 Rf8 27.Rf8 Kf8 28.b8Q Ke7 29.Qe5+–) 1–0. pierre – wahid, internet, 2010.

6.Nf3 d5 7.c4 Nbd7 8.Be2 a6 9.d4 Bb4 10.Nbd2 ab5 11.ab5 Ra1 12.Ba1 Nb6 13.c5 Nc4 14.0–0 (14.Bc4 dc4 15.Qa4 Nd5=) 14...Nd2 (14...cb5!? 15.Nb1 Qa5–/+) 15.Nd2= cb5 16.Nb3 (16.Bb5? Qa5–+) 16...Bd7 17.Qc2 Ne4 18.f3 Nf6 19.Bc3 Bc3 20.Qc3 Bc6 21.Qb4 The isolani on b5 becomes a target 21...Qd7 22.Rb1 Ra8 23.Na5 Qc7 24.Nb3 Ra4 25.Qc3 Nd7 26.Nd2 Qa5 27.Qa5 Ra5 28.Nb3 Ra2 29.Nc1 Rc2 30.Bf1 f6 31.Nb3 e5 32.Na1 Ra2 33.Nb3 Kf7 34.h4 Ke6 35.Nc1 Rc2 36.Nb3 h6 37.Na1 Ra2 38.Nb3 g5 39.Nc1 Ra3 40.h5? (better is 40.hg5 hg5 41.Kf2–/+) 40...Re3–+ 41.Nd3 ed4 42.Rb4 Ne5 43.Rd4 (43.Nc1 d3 44.Nb3 Nc4–+) 43...Nd3 (better is 43...Rf3 44.Be2 Re3–+) 44.Bd3 (44.Rd3 Rd3 45.Bd3–+) 44...Ke5 45.f4 (45.Rb4 Rd3 46.Kf1 Rc3–+) 45...gf4 (better is 45...Kd4 46.fg5 Kd3 47.gh6–+) 46.Rb4 Rd3 47.Kf2 (47.Rb2 d4 48.Kf1 f3 49.gf3 Rf3 50.Ke1 Re3 51.Kf1 f5–+) 47...Rd2 48.Kg1 d4 49.Kh2 d3 (49...Rg2 50.Kh1 d3 51.Rb3 d2 52.Rb1 f3 53.Ra1 f2 54.Rb1 f5 55.Rf1 f4 56.Rf2 d1Q 57.Rf1 Qf1) 50.Kh3 Rb2! 51.Rb3 Rb3 (51...Rb3 52.Kh2 Rb1 53.Kh3 Rh1 54.Kg4 f5) 0–1. Toll,Anatoly – Kamphorst,Maraani, Dos Hermanas Internet qual–D, 2009.

5.e3 d5

6.Nf3 0–0 7.Be2 a5 8.0–0 Nbd7 9.d4 Bb6 10.Nc3 c5 11.Bd3 c4 12.Be2 Ng4 13.Nd2 f5 14.Bg4 fg4 15.Qg4 Nf6 16.Qh4 Qd6 17.Ba3 Qd8 18.Bf8 Qf8 19.Ne2 Bd8 20.Nf3 Ne4 21.Qf4 Bf6 22.c3 Qe7 23.Rfd1 Bd7 24.Nd2 Bg5 25.Qc7 Nd6 26.Nf3 Bh6 27.Ne5 Rd8 28.Qa5 Nf5 29.Qc7 Kf8 30.Qb7 Nd6 31.Qc7 Ke8 32.b6 Ne4 33.b7 Nf2 34.Kf2 Qh4 35.Ng3 Bg5 36.Nf3 Qh6 37.Ng5 Qg5 38.b8Q Qf6 39.Kg1 1–0. Trkn – Hammock, itsyourturn.com, 2000.

6.Nf3 0–0 7.Be2 cb5 8.ab5 Qb6 9.Bf6+= gf6 10.0–0 e5 11.Nc3 Qe6+= 12.Re1 Kh8 13.Rb1 Be7 14.d3 Rg8 15.Bf1 Bd6 16.e4 d4 17.Nd5 Bd7 18.Nh4 Be8 19.Nf5 Nd7 20.Qf3 Rg6 21.g3 Nc5 22.h4 Bd7? 23.Bh3+– Rc8 24.Kh2?? Bf8+/– 25.b6 a6 26.Nc7 Qc6 27.Nd5 Qe6 28.Nc7 Qc6 29.Nd5 Bf5 30.Bf5+/– Rh6 31.Bc8+– Qc8 32.Nf6 Qe6 33.Nd5 Bg7 34.Rb4 Nd7 35.Rc4 Qe8 36.Rc7 Nf6 37.Rb7 Nd5 38.ed5 Rf6 39.Qf6! Bf6 40.Rb1 Bd8?? 41.Rc7! Kg7 42.d6 Qe6 43.b7 Qd6 44.Rf7!! Kf7 45.b8Q Qb8 46.Rb8 Be7 47.Ra8 a5 48.Ra5 Kf6 49.Ra7 h6 50.Ra6 Kg7 51.Kg2 Bf6 52.Kf3 h5 53.Rf6! Kf6 54.g4 hg4 55.Kg4 Kg6 56.f4 ef4 57.Kf4 Kh5 58.Ke4 Kh4 59.Kd4 Kg5 60.Ke5 Kg6 61.Ke6 Kg7 62.c4 Kf8 63.Kd7 (63.Kd7 Kf7 64.d4+–) 1–0. hsingletary (1750) – dennism (1795), net–chess.com, 2001.

4.a4 d5

5.c4 c5 6.d4 Be7 7.Nc3 0–0 8.Nf3 b6 9.e3 Bb7 10.h3 Nbd7 11.cd5 ed5 12.dc5 bc5 13.Be2 Qc7 14.Rc1 Ne4 15.Ne4 de4= 16.Nd2 Nf6 17.0–0 Rad8 18.Qe1 Rd7 19.Nc4 Rfd8 20.Ne5 Rd5= 21.f4 ef3 22.Nf3 Ne4 23.Bc4 R5d7 24.Ba2?? Bf6 25.Bf6 Nf6 26.Nd2?? Rd2–+ 27.Bc4 Rg2 (27...Rg2 28.Kh1 Qh2) 0–1. iczker – e4kk, kurnik, 2011.

5.bc6 Nc6 6.e3 Bd6 7.Nf3 0–0 8.c4 e5 9.Be2 (9.cd5 Nd5 10.Nc3 Nc3 11.Bc3 e4+=) 9...e4 10.Nd4 Ne5 11.Qb3 (11.Na3!?–/+) 11...dc4–+ 12.Bc4 a6 13.Nc3 Qc7 14.Be2 Bg4 15.Nd5 (15.f3 ef3 16.gf3 Bh3=) 15...Nd5+= 16.Qd5 Be2 17.Ke2 Qc4 (17...Nd3!? 18.Nf5 Nb2–/+) 18.Qc4+= Nc4 19.Bc3 g6 20.d3 ed3 21.Kd3 Rac8 22.Rab1 Ne5 23.Kd2 Rc7 24.Bb4 Rfc8 25.Bd6 Nc4 26.Ke2 Nd6 27.Rb6 Ne4 28.a5 Kf8 29.Kf3 (29.Ra1!?=) 29...Nd2–/+ 30.Ke2 Nc4 31.Rb4 Na5 32.Rhb1 b5 33.R4b2 Nc6 34.Ra1 Nd4 35.ed4 Rc2 36.Rc2 Rc2 37.Ke3 Rc6 38.Ke4 Ke7 39.g4 Kd6 40.f4? (better is 40.Ra3–+) 40...b4 41.Ra4 (41.Rb1 Rb6 42.Kd3–+) 41...Rb6 0–1. Kutalkova,Sarka – Olsar,Z (1945), Karvina Open, 2015.

5.d4 a6 6.c4 ab5 7.ab5 Ra1 8.Ba1 dc4 9.Nc3 Bb4 10.e3 Ne4 11.Qc2?? Qa5 12.Nge2 Qa1 13.Nc1 Bc3 14.Kd1 Nd6 15.bc6 Nc6 16.e4 Nb4 17.Qe2 Nd3 18.Qc2 0–1. iczker – biglejno4you (1605), kurnik, 2011.

5.d4 Be7 6.c4 dc4 7.Nc3 cb5 8.ab5 0–0 9.Nf3 b6 10.e3= Bb7 11.Bc4 Nbd7 12.0–0 Qc7 13.Qb3 Rfd8? 14.Rac1?? Rac8 15.Rfd1?? Qc4–+ 16.Qa3 Ba3 (16...Ba3 17.Ba3 Qb3–+) 0–1. iczker – fischerev7, kurnik, 2011.

5.e3 Qa5 6.Be2 Bd7 7.f4 Be7 (7...Ne4 8.Nf3=) 8.Nf3 0–0 9.0–0 Nh5 (9...a6 10.Ne5=) 10.Nd4 (10.Bc3 Qd8=) 10...Nf6= 11.bc6 (11.Nb3 Qd8=) 11...Nc6 12.Nb3 Qb6 (12...Qc7 13.Nc3=) 13.Rf3 White prepares a5 (13.a5 Qc7=) 13...Nh5 (better is 13...Ne4!?=) 14.Bd3 f5 15.a5 Qc7 16.Nc3 (16.a6 ba6 17.Na3 Bc8=) 16...a6 17.Ne2 (17.Ba3 Ba3 18.Ra3 Nf6=) 17...Rf7 (17...e5 18.fe5 Ne5 19.Rh3=) 18.Ned4 Nb4 (18...Rc8 19.Nc6 Bc6 20.Be5=) 19.Rh3 (better is 19.Be2+=) 19...Nd3? (better is 19...Nf6=) 20.Qh5+– (20.cd3?! Nf6=) 20...g6 21.Ne6 Be6 (21...gh5?? 22.Rg3 (22.Nc7?! Rc8 23.cd3 Rc7+–) 22...Rg7 23.Rg7 Kh8 24.Re7 Nb2 25.Nc7+–) 22.Qg6 (22.Qg6 Kf8 23.cd3+– (23.Qe6 Qc2 24.Bd4 Qb3=)) 1–0. pcmvr (1700) – nay (2190), net–chess.com, 2006.

5.e3 Qb6 6.Bd4 (6.Nf3 Bb4=) 6...Qa5 (6...Qc7 7.Bf6 gf6 8.Nc3=) 7.Bc3 Qb6 (7...Qc7 8.Bf6 gf6 9.Nc3=) 8.Na3 (8.Nf3 Nbd7=) 8...Ne4+= 9.Bd4 Qa5 10.bc6 (10.Bd3 c5 (10...Qa4? 11.Nc4 Qb4 12.Nb6+–) 11.Bb2 Qb4= (worse is 11...Qa4 12.Nc4 Qb4 13.Ba3 Qb5 14.Nd6 Nd6 15.Bb5 Nb5 16.Bb2+/–)) 10...Nc6+= 11.c3? (better is 11.Bb5!?+=) 11...Nd4 (better is 11...e5!? 12.Be5 Ne5 13.Bb5 Kd8 14.f4–+) 12.ed4 (12.cd4 Nd2! 13.Bb5 Bd7 14.Bd7 Kd7–+) 12...Nc3 13.Bb5 (13.dc3 Qc3 A double attack) 13...Nb5 14.Nb5 Bd7 15.Rb1 Bb4 (15...Rc8 16.Nc3 Bb4 17.Nge2–+) 16.Nf3 (16.Nc7 Qc7 17.Rb4–+) 16...Bb5 17.ab5 Qb5 18.Qb3 (18.Ne5 Rc8–+) 18...a5 19.Ne5 0–0 20.Nd3 Rfc8 (20...Qc4 21.Ke2 Qd4 22.Nb4 ab4 23.Qb4 Qe5 24.Kd1–+) 21.Nb4 ab4 22.d3 Ra3 (better is 22...Qa4 23.Kd2 Qd7–+) 23.Qb2?? (23.Qa3 ba3 24.Rb5 Rc1 25.Ke2 Rh1 26.Ra5–+) 23...Qd3 24.Qb4 (24.Qb4 Rc2 25.Qf8 Kf8 26.Rb7 Qe2; 24.Rd1 Qe4 25.Qe2 Qg2 26.Rf1–+) time 0–1. Nautiluschess – stefaan, ICS blitz, 2001.

5.e3 g6 6.Nf3+= Nbd7 7.Be2 Bg7 8.Ba3 (8.0–0 0–0=) 8...c5 (8...Ne4 9.c3=) 9.0–0 b6 (9...Ne4 10.d4=) 10.d4 0–0 11.Nbd2 Re8 12.Rc1 Bb7 13.c4 Rc8 14.Nb3 (14.Bb2 cd4 15.Bd4 e5=) 14...Ne4 15.Nfd2 Nd2 16.Qd2 dc4 17.Bc4 (worse is 17.Rc4 Bd5 18.Rc3 Qg5–/+) 17...Qg5 Threatening mate... how? 18.f4 Qd8 (18...Qg4 19.dc5 Nc5 20.Nc5 bc5 21.Rfd1=) 19.dc5 Nc5 (worse is 19...bc5 20.Rfd1 Nb6 21.Nc5 (worse is 21.Bc5 Qd2 22.Rd2 Nc4 23.Rc4 Bd5+=) 21...Nc4 22.Qd8 Red8 23.Rd8 Rd8 24.Nb7+–) 20.Qd8 Red8 (20...Rcd8? 21.Nc5 bc5 22.Bc5+–) 21.Nc5 bc5 22.Rfd1 Bf8 23.Rd8 (23.a5 Rd1 24.Rd1 h6+=) 23...Rd8= 24.Bf1 Attacks the isolani on c5 24...Rc8 25.Kf2 Bd5 Black prepares the advance c4 (25...h6 26.Bd3=) 26.Be2 (26.a5 h5=) 26...f5= 27.a5 c4 28.Bf8 Kf8 ½–½. Krueger,Bernhard – Kohlhepp,Thomas, Baunatal op 1st, 1995.

5.Nf3 Bb4 6.e3 h6 7.Be2 Ba5 8.0–0 Bd7 9.c4 Bb6 10.Qc2 cb5 11.ab5 Qe7 12.Ne5 0–0 13.Nd7 (better is 13.Ba3!? Bc5 14.Bc5 Qc5 15.d4+–) 13...Nbd7+/– 14.Ba3 Bc5 15.Bc5 Nc5 16.d4 Nce4 17.c5 Rfc8 18.Nd2 Nc5? (better is 18...Nd2 19.Qd2 b6+=) 19.dc5+– Rc5 20.Qb3 b6 21.Nf3 Rac8 22.Nd4 Rc3 23.Qb2 R3c7 24.Nc6 Qd6 25.Rfc1 (25.Na7 Rf8+–) 25...Ne4 26.Ra7 Nc5 27.Rc7 Rc7 28.Ra1 Rc8 29.Na7 Ra8 30.Nc6?? (30.f3 Qd8+–) 30...Rc8 31.Ra7 f6 (31...Rc7+–) 32.Ne7 Kh8 33.Nc8 Qd8 34.Qa3 e5 (34...Kh7 35.Ra8 Qc7+–) 35.Ra8 (35.Ne7 Kh7 36.Bh5 Qe7 37.Re7 Ne6 38.Qd3 e4 39.Qd5 Nc7 40.Qf5 Kg8 41.Rc7 Kf8 42.Qc8) 35...Kh7 36.Qa7 (better is 36.Bg4 Qc7 37.Bf5 g6+–) 36...Qe8 (36...Qd7 37.Nb6 Qa7 38.Ra7+–) 37.Nb6 (37.Ne7 e4 38.Re8 Ne6 39.Bh5 Nf8 40.Rf8 d4 41.Bg6) 37...Qg6 38.Nd7 (better is 38.Nd5 Qb1 39.Bf1+–) 38...Ne4 39.Qb7 (39.Nf8 Kg8 40.Ng6 Kh7 41.Nf8 Kg8 42.Ne6 Kh7 43.Qg7) 39...Qf5 40.Qd5 Qf2 41.Kh1 Qe1 42.Bf1 Qf1 0–1. OPA – palma23, Live Game Caissa's Web, 2004.

5.Nf3 cb5 6.ab5 Bd7 7.e3 Qb6 8.c4 (8.Bd4 Bc5=) 8...dc4 9.Nc3 (9.Bc4 Bb5 10.Qb3 Ba6 11.Qb6 ab6=) 9...Nd5 (9...Bb5 10.Nb5 Qb5 11.Qc1+=) 10.Nd4 (better is 10.Bc4 Nc3 11.Bc3+=) 10...Nc3–/+ 11.Bc3 Bc5 (better is 11...e5 12.Nf3 e4+=) 12.Bc4+= 0–0 13.0–0 e5 14.Nb3 Bb5? (better is 14...Qc7+=) 15.Bb5+– Qb5 16.Be5?? (better is 16.Ra5 Qb6 17.Rc5+–) 16...Nd7 (16...Be7 17.Bd4+=) 17.Nd4 Bd4 18.Bd4 a6 (18...Rfc8 19.Ra7 (worse is 19.Ba7 b6=) 19...Ra7 20.Qg4+=) 19.Rb1 (19.Qf3+=) 19...Qg5 (19...Qd5+=) 20.g3 (better is 20.Rb7!? Rfd8 21.Qf3+/–) 20...b5= 21.Ra1 (21.f4 Qg6=) 21...Ne5?? (better is 21...a5+=) 22.f4+– (22.f4 Qg4 23.fe5 Qd1 24.Rfd1+–) 1–0. TONDA – Taiko, Live Game Caissa's Web, 2006.

5.Nf3 Bd6 6.e3 (--> 5.e3 Bd6 6.Nf3).

5.Nf3 Nbd7 6.e3 c5 (6...Bd6 7.Be2+=) 7.c4 (7.Be2 Bd6=) 7...Nb6 (7...Bd6 8.Be2=) 8.cd5 (8.d3 Bd6=) 8...Nbd5 9.Bc4 (9.d4 cd4 10.Bd4 Bb4 11.Nbd2 Nc3+=) 9...Be7 (9...Bd6 10.d4=) 10.0–0 0–0 11.d4 cd4 (11...Qd6 12.Nbd2 cd4 13.e4+=) 12.Qd4+= b6 (12...Nb4 13.Rc1=) 13.Nbd2 (13.Rd1 Bb7+=) 13...Bc5 (13...Bb7 14.Rfd1+=) 14.Qd3 (14.Qh4 Bb7+=) 14...Bb7 15.Rac1 (15.Rad1 Rc8+=) 15...Nb4 (15...Qe7 16.Bd4=) 16.Qb3 (16.Qb1 Bd6+=) 16...Rc8 17.Rfd1 Nbd5 (17...Qe7 18.Bd4=) 18.Ng5 (18.e4 Nb4+=) 18...h6 (18...Ng4 19.Nge4 Nde3 20.Be6 (20.Nc5?? Qh4 21.Qe3 Qh2 22.Kf1 Ne3 23.fe3 Rc5–+) 20...Nd1 21.Bc8 Ngf2 22.Rc5 Be4 23.Ne4 bc5 24.Nf2 Nb2 25.Qb2–+) 19.Nge4+= Ne4 (19...Nd7 20.Nf3+=) 20.Ne4+/– Qh4 21.Nc5 bc5 22.Qd3 (22.a5 Qg5 23.Rd2 Rfd8+/–) 22...Qg4 (22...Nb6 23.Qe2=) 23.h3 (worse is 23.Bd5 Bd5 (23...ed5 24.f3 Qe6 25.Qc3+/–) 24.Qf1 Qa4+=) 23...Qg5 24.Qe4 Ba8 25.h4 (better is 25.Bd3 g6 26.h4+=) 25...Qe7?? (better is 25...Qh5 26.Bd3 Nf6+/–) 26.Bd5+– Bd5 27.Rd5 1–0. Wall,Bill – Fifa,Brian, internet, 2006.

5.Nf3 Be7 6.e3 (--> 5.e3 Be7 6.Nf3).

5.e3 a5

6.a4 Nbd7 7.Nf3 Bd6 8.Be2 0–0 9.0–0 e5 10.d3 Qe7 11.Nbd2 h6 12.c4 Re8 13.Qc2 e4 14.de4 de4 15.Nd4 Ne5 (better is 15...Qe5 16.g3 c5=) 16.Ne4+/– Ne4 17.Qe4 Ng4 (17...Qd7 18.Qh4+/–) 18.Qe7+– Re7 19.bc6 Bh2 20.Kh1 Be5 21.cb7 Rb7 22.Bf3 (22.Bc3!?+–) 22...Rb2+/– 23.Ba8 Nf2 24.Kg1 Nd3 (better is 24...Ng4!? 25.Nc6 Be6+/–) 25.Bd5+– Be6?? (better is 25...Bb7+–) 26.Ne6 (26.Be6?! fe6 27.Ne6 Re2+–) 26...fe6 27.Be6 Kh7 28.Rad1 (better is 28.Bf5 g6 29.Bd3 Rb3+–) 28...Nb4 29.Bf5 g6 (29...Kg8 30.Rd8 Kf7+–) 30.Rd7 Bg7 31.Rg7! Kg7 32.Be4 (32.Be6!?+/–) 32...Re2+= 33.Rd1 (33.Bd5!? Nd5 34.cd5 Re3 35.Rd1=) 33...Re3= 34.Rd7 Kf6 35.Bd5 Nd5 (35...Ra3!?+=) 36.Rd5= (worse is 36.cd5 Re4–/+) 36...Rc3 37.c5 (37.Ra5 Rc4 38.Ra6 Kf5+=) 37...Rc4 38.c6. Onkel_Luis – capatampa, ICC, 2003.

6.c4 Bb4 7.Nc3 Nbd7 (7...e5 8.cd5 cd5 9.Nf3=) 8.d4 (8.Nf3 0–0=) 8...Ne4 (8...0–0 9.Nf3=) 9.Qc2 (9.Rc1 cb5 10.cb5 Nb6=) 9...cb5 10.cb5 (10.ab5 a4 11.Kd1 Nc3 12.Bc3 Bc3 13.Qc3 dc4+=) 10...Qc7 11.Nge2 Nb6 12.f3 Nd6 13.Kf2 (13.Rc1 Ndc4 14.Kf2 Qe7+=) 13...Nbc4 (13...Ndc4 14.e4+=) 14.Na2 Bd2 (14...Nf5 15.Bc1=) 15.Bc1 Bc1 16.Rc1 Qe7 17.Ng3 (17.Nf4 Bd7=) 17...Bd7 18.Bd3 Rc8 19.Qb3 (19.Nc3 Qh4=) 19...h5 (19...0–0 20.Rhe1+=) 20.h3 (20.Nc3 h4 21.Nge2 h3=) 20...Qg5 Do you see the mate threat? 21.Rhe1 f5 (21...0–0 22.f4 Qh4 23.Nc3–+) 22.Nf1 (22.Nc3 Ne3 23.Re3 f4+=) 22...Qh4 23.Kg1 g5 (better is 23...0–0+=) 24.e4 (24.g3!? Qh3 25.Rc2+=) 24...fe4 (24...g4 25.ed5 gf3–+) 25.fe4= 0–0 (25...de4 26.Bc4 Rc4 27.g3 Rc1 28.gh4 Re1 29.Qc3–+) 26.Re2 g4 (26...Be8=) 27.g3 (better is 27.e5 Nf5 28.Bf5 Rf5 29.Ne3=) 27...Rf1!–/+ (27...Qh3? 28.Rh2 Nd2 29.Rd2+– (worse is 29.Nd2 Qg3 30.Rg2 Rc1 31.Nc1 Qe3 32.Kh1 de4–+)) 28.Rf1 Blocks the square `8 (28.Kf1 Qg3) 28...Qg3 29.Rg2 Qe3 30.Rff2 Nd2 (30...de4?! 31.Bc4 Nc4 32.Qc3=) 31.Qd1 N6e4 (31...N2e4 32.hg4 Nf2 33.Rf2–+) 32.Be4 (32.hg4 Nf2 (32...Qd3?! 33.gh5 Kh8 34.Rd2 Qe3 35.Kh2 Qf4 36.Kg1 Nd2 37.Qd2 Qd2 38.Rd2–/+) 33.Rf2 Qg3 (33...Qd3?! 34.Rd2 Qg3 35.Rg2 Qe3 36.Kh2–+) 34.Rg2 Nf3 (34...Qd3 35.gh5 Kh7 36.Qd2 Qd2 37.Rd2–+) 35.Kf1 Qh3–+) 32...Ne4 33.hg4 Nf2 34.gh5?? (34.Rf2 Rc4 35.gh5 Rd4 36.Qf1–+) 34...Ng4 35.Kh1 Qh3 36.Kg1 Qg2! (36...Qg2 37.Kg2 Ne3 38.Kf2 Nd1 39.Ke1 Nb2–+) 0–1. Nagel,Gunter – Olej,Emil, corr, 1967.

6.c4 dc4 7.Bc4 cb5 8.ab5 Be7 9.Nf3 b6 10.0–0 Bb7 11.d4 Nbd7 12.Nbd2 Rc8 13.Rc1 0–0 14.Re1 Bb4 15.Re2 Nd5 16.h3 N7f6 17.e4 Nf4 18.e5? Ne2–+ 19.Qe2 Nd5 20.Ne4 Nf4 21.Qe3 Ng6 22.Neg5 Bd5 23.Bd3 Rc1 24.Bc1 a4 25.Ne4 a3 26.Nf6?? gf6 27.ef6 Qf6 28.Qh6 a2 29.Ng5 Qg7 30.Qg7 Kg7 31.Bb2 Nf4 32.Bh7 f6 33.Ne6 Ne6 34.Bd3 Rc8 35.Kh2 Bc3 0–1. nizinna (1690) – mysticlight (1850), kurnik, 2011.

6.c4 Nbd7 7.Nf3 Bd6 8.cd5 cd5 9.Be2 e5 10.0–0 0–0 11.Ba3 Qe7 12.Bd6 Qd6 13.Qb3 b6 (13...d4 14.ed4 e4 15.Ne1=) 14.h3 (14.d4 e4 15.Nfd2 Bb7=) 14...Bb7 15.d4 e4 16.Nfd2 Rfe8 17.Qa3 Qe6 18.Nc3 h6 19.Qb3 Nh7 20.Bg4 f5 21.Bd1 g5 (21...Nhf6 22.Rc1=) 22.Ne2 Rf8 Black prepares f4 23.Rc1 Rac8 24.Rc8 Rc8 25.Nc3 Nhf6 26.Be2 f4 27.Nd1 f3 28.gf3 ef3 29.Bf3 Qh3 30.Bg2 Qh5 31.Qb1 Ng4 32.Nf3 Rf8 33.Re1 Ndf6 34.Qf5 Bc8 35.Qc2 Qf7 36.Bh3 (36.Nd2 h5+=) 36...Ne4= 37.Ne5?? (better is 37.Bg2=) 37...Ne5–+ 38.Bc8 (38.de5 Bh3 39.Qe2 g4–+) 38...Nf3 39.Kf1 Ned2 (better is 39...Qh5 40.Be6 Kh8–+) 40.Ke2 Qe8 (40...Ne1?! 41.Qc6 Kg7 42.Kd2 Nf3 43.Kc2–/+) 41.Bg4?? (better is 41.Qd3 Ne1 42.Ke1 Nf3 43.Ke2–+) 41...Nd4 42.Kd2 Nc2 43.Kc2 (43.Rh1 Qg6 44.Be2 Nb4–+) 43...Qe4 (43...Qe4 44.Kd2 Qg4–+) 0–1. Hal1958 – Caissaman, playchess.de, 2005.

6.c4 Be7 7.Nf3 Bd7 (7...0–0 8.Nc3=) 8.Nc3 0–0 9.h3 (9.Rc1 Bb4=) 9...Qb6 (9...Ne4 10.Qc2 cb5 11.ab5 Nc3 12.Bc3+=) 10.g4 (10.Rb1 c5=) 10...dc4 (10...Rc8 11.cd5 Nd5 12.Nd5 ed5 13.Rc1+=) 11.Bc4 Rd8 (11...Rc8 12.Rc1+=) 12.g5 Nd5 (12...Ne8 13.Ne5=) 13.h4 (13.Nd5!? cd5 14.Bd3=) 13...Nc3+= 14.Bc3 cb5 (14...Bd6 15.Qb1 cb5 16.Bd3=) 15.ab5= Bb5 (15...Rc8 16.Qa4=) 16.Rb1 Bb4 17.Bb4 ab4 18.Rb4 Qc5 19.Rb5 Qc4 20.Rb7 Nc6 (20...Nd7 21.Rb1+=) 21.Rb1 (21.Rb2!?+=) 21...Nb4–/+ 22.d4?? (better is 22.Qb3 Qb3 23.Rb3 Ra1 24.Ke2 Rh1 25.Rb4+=) 22...Nd3 (better is 22...Nc2 23.Qc2 Qc2–+) ½–½. Zauner,Franz – Rechberger,Franz, Leonding AUT, 2006.

6.c4 g6 7.Nf3 Bg7 8.Be2 0–0 9.0–0 Nbd7 10.d4 Re8 11.Qb3 Ne4 12.Nbd2 Ndf6 13.Rfd1 Nd2 14.Rd2 Ne4 15.Rc2 Bd7 16.Rac1 dc4 17.Bc4 cb5 18.Bb5 Qb6 19.Rc7 Rad8 20.Ba3 Bb5 21.Qb5 Qb5 22.ab5 b6 23.Kf1 Rd5 24.Rb1 Rb8 25.Ke2 f5 26.Ne1 e5=+ 27.f3 Ng5 28.de5 Ne6 29.Re7 Re5 30.Nd3 Nd4=+ 31.Kd2 Re7 32.ed4?? Rd7–+ 33.Nf4 Bd4 34.Ke2 Re8 35.Kf1 g5 36.Ne2 Be3 37.Ng3 f4 38.Ne4 Re6 39.Ng5 Re5 40.Ne4 Rd3 41.Ke2 Ra3 42.g3 Ra2 43.Kd3 Rd5 44.Kc4 Rd4 45.Kc3 Rh2 46.gf4 Rb4 47.Rb4 ab4 48.Kb4 Bf4 49.Kc4 Be3 50.Kd5 h5 51.Nf6 Kf7 52.Nd7 Rb2 53.Kc6 h4 54.Nb6 (54.Nb6 Bb6 55.Kb6–+). carocan (1710) – anyrteb (1675), kurnik, 2011.

6.Qf3 Bd6 7.c4 Nbd7 8.d4 Bb4 9.Bc3 Qe7 10.c5 e5 11.Ne2 Ne4 12.Bb4 ab4 13.Nd2 Nd2 14.Kd2 cb5 15.a5 e4 16.Qg3 Nb8?? 17.Qg7+– Rf8 18.Nf4 Qd7 19.Qe5 Kd8 20.Qd5 Qd5 21.Nd5 Bd7 22.Nb4 Nc6 23.Nc6 bc6 24.Be2 Ra6 25.Rhb1 Ke7 26.g3 Rfa8 27.f3 ef3 28.Bf3 Ra5 29.Ra5 Ra5 30.e4 Ra2 31.Ke3 Rh2 32.Ra1 Kf6? 33.Ra7+– Be8 34.e5 Kg6?? 35.Re7 1–0. baovn21 (1715) – kwidzyn (1740), kurnik, 2011.

6.Nf3 c5 7.d4 c4 8.Ba3 Ba3 9.Ra3 b6 10.Nbd2 0–0 11.Qe2 Qd6 12.Ra1 Qb4 13.e4? Ne4–+ 14.Rb1 Qd2?? 15.Nd2+– Nd2 16.Qd2 Nd7 17.Be2 Nf6 18.f3 Re8 19.0–0 e5 20.de5 Re5 21.Qd4 Re6 22.Rfe1 Bb7 23.Bc4! Re1 24.Re1 dc4 25.Qc4 Rc8 26.Qb3 h6 27.Re7 Bd5 28.Qd3 Be6 29.Rb7 Nd5 30.c4 Nb4 31.Qe4 Rc4 32.Rb8 Rc8 33.Rc8 Bc8 34.Qe8 (34.Qe8 Kh7 35.Qc8+–) 1–0. baovn21 – marnar1960, kurnik, 2011.

6.Nf3 Bd6 7.Be2 0–0 8.0–0 Nbd7 9.c4 e5 10.bc6 (10.c5 Bc5 11.Ne5 Bd6=) 10...bc6+= 11.cd5 cd5 12.Nc3 Ba6 13.Ba6 Ra6 14.Nb5 Bb8 15.d4 (15.d3 Re8=) 15...e4 16.Nd2 Bd6 (better is 16...Re8=) 17.Nd6+– (17.Nd6 Rd6 18.Ba3+–) 1–0. rudy (2000) – rhand (1920), net–chess.com, 2001.

6.Nf3 Bd6 7.Be2 0–0 8.0–0 Nbd7 9.c4 e5 10.cd5 cd5 (10...cb5 11.Bb5 e4 12.Nd4=) 11.d3 Re8 12.d4 e4 13.Nfd2 b6 (13...Nb6 14.Ba3=) 14.Na3 (14.Ba3 Bb8=) 14...Bb7 15.Rc1 Qe7 16.Qb3 Rec8 17.Rc8 (17.Nc2 Rc7=) 17...Rc8 18.Rc1 Qd8 (18...Rc1 19.Bc1 Qd8 20.Qc2=) 19.Rc8 (19.Nc2 Ne8=) 19...Qc8 (19...Bc8 20.Qc3=) 20.h3 Nf8 21.Nf1 Ng6 22.Qc2 (22.Nc2 Nh4=) 22...Ne7 (22...Qf5 23.Nb1+=) 23.Qc8= Bc8 24.Ng3 g6 (24...Be6 25.Nc2=) 25.Nb1 Ne8 (25...Bg3 26.fg3 h5 27.Kf2=) 26.Nf1 f5 27.Ba3 Kf7 28.Bd6 Nd6 29.Nfd2 Be6 30.Kf1 g5 31.Ke1 f4 32.Bh5 Kf6 33.Bd1 fe3 (33...Ndf5 34.Ke2+=) 34.fe3= Kg6 35.Nc3 h5 36.Kf2 g4 37.hg4 Bg4? (37...hg4 38.Ne2 Kg5 39.Bb3=) 38.Bg4 (better is 38.Bb3 Be6 39.Nde4 de4 40.Be6+–) 38...hg4= 39.g3 (39.Ne2 Kf5=) 39...Ndf5 40.Nb3 Kf6 41.Nc1 Ke6 ½–½. rudy (2000) – rhand (1920), net–chess.com, 2001.

6.Nf3 Bd7 7.c4 Be7 8.Be2 0–0 9.0–0 Qc7 10.Be5 Qd8 11.Qc2 Ne8 (11...Be8 12.d4+/–) 12.Rc1 c5 (12...f6 13.Bg3+/–) 13.d4+– f6 14.Bg3 b6 (14...cd4 15.Nd4 e5 16.Nf3 dc4 17.Bc4 Kh8 18.Nbd2+–) 15.Nc3 Bc8 (15...Nc7+–) 16.cd5 ed5 17.Nd5! Bd6 (17...Qd5 18.Bc4 Pinning (18.Bc4 Decoy)) 18.dc5 Bc5 (18...bc5 19.Rd1 Kh8 20.Bd6 Qd6 21.Nf4+–) 19.Qe4 Bb7 (19...f5 20.Ne7!! Qe7 21.Qa8+–) 20.Rc5! bc5 (20...Kh8 21.Rc3 Bd5+–) 21.Ne7 Kh8 22.Qb7 Nd7 (22...Nd6 23.Bd6 Qd6 24.Rd1+–) 23.Rd1 (23.Rd1 Qe7 24.Rd7+–) 1–0. pierred (2840) – workchess (2210), net–chess.com, 2015.

6.Nf3 Nbd7 7.c4 cb5 8.cb5 (8.cd5 Nd5 9.Bb5 Nc7=) 8...b6 9.Be2 Bd6 (9...Bb7 10.0–0=) 10.0–0 (10.d4 0–0=) 10...Bb7 (10...e5 11.Ba3 Nc5 12.Ne5 Be5 13.d4 Bh2 14.Kh2=) 11.d4 Rc8 12.Nbd2 (12.Ba3 Qe7=) 12...Qc7 (12...0–0 13.Ba3 Ba3 14.Ra3=) 13.Rc1+= Qb8 14.Rc8 Bc8 15.Qc2 (15.Qb3 Ne4 16.Qc2 Bb7=) 15...h5 (15...0–0 16.Rc1=) 16.e4 (16.Rc1!? Bb7 17.Qd3+=) 16...de4= 17.Ne4 Bb7 (17...Ne4 18.Qe4 Bb7 19.Qh4=) 18.Nd6+= Qd6 19.Rc1 (19.Ra1 Qd5+=) 19...0–0 20.Qc7 (20.Ne5 Rc8 21.Qc8 Bc8 22.Rc8 Nf8+=) 20...Qd5 21.Bc4 Qe4 22.Re1 (22.d5 Bd5 23.Bd5 ed5 24.Bf6 Nf6=) 22...Rc8 (22...Qc2!? 23.Qb7 Qc4+=) 23.Qc8+= (23.Re4?? Rc7 24.Re6 Rc4–+ (worse is 24...fe6 25.Be6 Kh8 26.Bb3–+)) 23...Bc8 24.Re4 Ne4 25.d5 (better is 25.Be2!?+=) ½–½. Woelfelschneider,Peter – Pollakowski, Obernburg, 1983.

6.Nf3 Nbd7 7.c4 Nb6 8.Ne5 Qc7 9.bc6 bc6 10.cd5 Nfd5 11.Nc6 Qc6?? (better is 11...Bb7 12.Ne5 Bd6 13.Bb5 Kf8+=) 12.Bb5+– Qb5 13.ab5 Nc4 14.Qc2 Nb2 (14...Ncb6+–) 15.Qc6 (15.Qc6 Kd8 16.Qa8+–) 1–0. b4_player – manne, casual, 2013.

6.Nf3 Nbd7 7.Be2 Bd6 8.d4 0–0 (8...Qc7 9.0–0=) 9.Nbd2 (9.0–0 Qc7=) 9...Nb6 (9...cb5 10.Bb5 Nb6 11.Ne5=) 10.0–0 cb5 11.ab5 Qe7 12.Ne5 (12.c4 dc4 13.Ne5 Qc7 14.Ndc4 Nc4 15.Nc4 Bh2 16.Kh1 Rd8+=) 12...Nfd7 (12...a4 13.c4 a3 14.Bc1=) 13.c4 Ne5 14.de5 Bb4 15.Bd4 Nd7 (15...Qc7 16.Qc2+=) 16.cd5 (16.Qc2 Rd8+=) 16...ed5 17.Nf3 b6 18.Rc1 Nc5 19.Bc5 Bc5 20.Qd5 Bb7 21.Qd3 (21.Qc4 a4=) 21...a4 22.Rfd1 a3 23.Qf5 Bc8 24.Qh5 Bb7 25.Bc4 Bf3 26.Qf3 Qe5 27.Rc2 (27.Rd7 Be7 28.Ba2 Qb2 29.Bf7 Kh8–/+) 27...Ra4 28.g3 Kh8 (28...Qg5 29.Qe4 Ra7 30.Ra2=) 29.Ba2 (29.Bf7?? a2 30.Ra2 Ra2–+) ½–½. Myrberg,Johnny – Simmelink,Joop Theo, corr Kuhlmann mem, 1999.

6.Nf3 Be7 7.d4 0–0 8.c4 dc4 9.Bc4 cb5 10.ab5 Nbd7 11.0–0 b6 12.Nbd2 Bb7 13.Qe2 Rb8 14.Rfc1 Nd5 15.Ne5 Ne5 16.de5 Nb4 17.Bd4 Nd5 18.Bd3 Rc8 19.Qh5 g6 20.Qg4 h5 21.Qg3 Bh4 22.Qh3 Nb4 23.Be4 Rc1= 24.Rc1 Be4 25.Ne4+/– Be7 26.Nf6 Bf6 27.ef6 Nd3 28.Rd1 e5 29.Rd3 ed4 30.Rd4 Qf6 31.Qd7 Kg7 32.g3 Qf3 33.Rf4 Qe2 34.Qd4 Kh7 35.Qb6 a4 36.Qb7 Kg8 37.b6 a3 38.Qa7 a2 39.Ra4 Rd8 40.Ra2 Rd1 41.Kg2 Qf1 42.Kf3 Qh1 43.Kf4 Rd6?? 44.Qa8 Kg7 45.Qh1 (45.Qh1 g5 46.Kg5 Rb6 47.Qd5 Rg6 48.Kh4 Rg4 49.Kh3 f6 50.Ra7 Kh6 51.Qf5 Rg6 52.g4 hg4 53.Kh4 g3 54.Qh5) 1–0. bratek55 (1610) – abelha2010 (1680), kurnik, 2011.

6.Nf3 Be7 7.Be2 0–0 8.0–0 cb5 9.ab5 b6 10.Bd4 Nbd7 11.Ne5 Bc5 12.Nc6 Qc7 13.Bc5 Nc5 14.Nc3 Bb7 15.Na4? Na4 16.Ra4 Bc6 17.bc6 Qc6 18.c3 Rfc8 19.Qb1?? Rab8 20.Bb5–/+ Qc5 21.h3 h6 22.Qd3 Ne4 23.f3 Nd2!–+ 24.Qd2 Qb5 25.Rfa1 Rc4 26.Rc4 Qc4 27.Rb1 b5 28.Qd4 a4 29.Qe5 Rc8 30.Rb4 Qc3 31.Qc3 Rc3 32.Rb5 a3 33.Kf2 Rc2 34.Kg3 a2 35.Ra5 Kh7 36.h4 Kg6 37.e4 de4 38.fe4 Kf6 39.Kf3 h5! 40.g4 hg4 41.Kg4 g6 42.h5 gh5 43.Kh5 Rg2 44.Kh4 Kg6 45.Kh3 Re2 46.Ra4 f5 47.ef5 ef5 48.Ra6 Kg5 49.Kg3 Re3 50.Kf2 Rh3 51.Kg2 Rh4 52.Ra2 Rg4 53.Kh2 Rh4 54.Kg2 Rd4 55.Rf2 f4 56.Kh2 Kg4 57.Rg2 Kf3 58.Ra2 Re4 59.Ra3 Re3 (59...Re3 60.Ra4 Re5–+) 0–1. j1a9n55 – piratnowy2 (1630), kurnik, 2011.

6.f4 Be7 7.Nf3 Bd7 8.Be2 Ne4 9.d3 Nd6 10.c4 dc4 11.dc4 0–0 12.0–0 Ne4 13.Nbd2 Nc5 14.Ne5 f6 15.Nd3 Nd3 16.Bd3 Bc5 17.Qf3 Qe7 18.Rae1 Rd8 19.Kh1 f5 20.e4+/– Bb4 21.Rf2 cb5 22.cb5 Be8? 23.ef5+– Qd7 24.Bc4 Bd2 25.fe6 Qe7+/– 26.Qg3?? Be1–+ 27.Bg7?? Bg6 28.Bf6 Qf6 29.e7 Kh8 30.ed8Q Qd8 31.Re2 (31.Re2 Bg3 32.hg3–+). elsh1403 – szybciorr, kurnik, 2011.

5.e3 Bb4

6.c4 dc4 7.Bc4 cb5 8.ab5 Bd7 9.Nf3 a6 10.Qb3 Be7 11.0–0 0–0 12.Bd4 Nd5 (12...Ne4 13.ba6 ba6 14.Ne5+=) 13.Nc3 Nb6 14.Bd3 Bf6? (better is 14...Nc8!?+=) 15.Bc5+– Re8 (15...Bc8 16.Qb1 Re8 17.ba6+/–) 16.ba6 Bc6 17.Qb6 (17.Bh7!? Kh7 A) 18.Qb6?! Bf3 19.gf3 Nd7 20.Qd8 Red8+= (20...Rad8? 21.Bd6+–); B) 18.Qb1 Kg8 19.Bb6+– (19.Qb6?! Na6 20.d4 Rc8+=)) 17...Qd3+/– 18.ab7 Ra1 19.Ra1 Bf3 20.gf3 Qd2? (better is 20...Qg6 21.Kh1 Qh5+/–) 21.Qb5+– Rd8 (21...Qd8 22.Rd1 Bc3 23.Rd8 Rd8 24.Be7 Rd1 25.Kg2+–) 22.Rd1 Qc3 (22...Qd1 23.Nd1 Rd1 24.Kg2 Rd8+–) 23.Rd8 Bd8 24.Qe8# 1–0. usingprogram (2015) – oyrania, kurnik, 2012.

6.Nf3 Nbd7 7.Be2 cb5 8.ab5 0–0 9.0–0 Nc5 10.d4 Nce4 11.c3 Bd6 12.Nbd2 Re8 13.c4 b6 14.Qb3 Bb7 15.Ra2 a5 16.ba6 Ra6 17.Rfa1 Qc7?? (better is 17...Ra2 18.Ra2 Nd2 19.Nd2 Qc7=) 18.Ra6+– Ba6 19.Ra6 Nd2 20.Nd2 Bh2 21.Kf1 Rb8 22.g3 g6 (22...dc4 23.Qc4 Bg3 24.fg3 Qg3+–) 23.Kg2 Bg3 24.fg3 Ne8 25.Ba3 Qb7 26.Ra4 (26.c5 bc5 27.Qb7 Rb7+–) 26...Nc7?? (26...dc4 27.Bf3 cb3 28.Bb7 Rb7 29.Ra8+– (29.Nb3?! f5+/–)) 27.Rb4 (27.cd5 b5 28.Rb4 Qd5 29.Qd5 Nd5+–) 27...Kg7?? (better is 27...dc4 28.Bf3 cb3 29.Bb7 Rb7 30.Rb3 f5+–) 28.c5+– Na6 (28...Na8+–) 29.Rb6 Qa7 30.Ba6 Qa6 (30...Rb6 31.Qb6 Qe7 32.c6 Qa3 33.c7+–) 31.Rb8 (31.Rb8 Qe2 32.Kg1 Qd2 33.Bb4+–; better is 31.Ra6 Rb3 32.Nb3 h5+–) 1–0. woelfie – Talisman77, playchess.de, 2003.

5.e3 cb5

6.ab5 a5 7.d3 (7.Nf3 Nbd7=) 7...Bd6+= 8.Ra4 (8.Nf3!?+=) 8...0–0–/+ 9.f4 (9.Nf3 Nbd7–/+) 9...Nbd7 10.Nf3 Re8 11.Ne5 (11.Nbd2 e5 12.fe5 Ne5 13.Be5 Be5 (13...Re5?! 14.Ne5 Be5 15.Be2+=) 14.Ne5 Re5–+) 11...Qc7 (better is 11...Qb6 12.Kf2 Qb5–+) 12.Nf3? (better is 12.d4 Nb6 13.Ra2–/+) 12...e5 13.f5 (13.fe5 Ne5 14.Qe2 Neg4–+) 13...Nb6 14.c4 (14.Rh4 Bf5 15.Nfd2 Qc5–+) 14...Na4 15.Qa4 Bf5 16.cd5 (16.Nbd2 Bb4 17.Kd1 Ng4–+) 16...Bb4 17.Nbd2 Qc5 18.Ke2 (18.e4 Ng4 19.Kd1–+) 18...Ng4 19.d4 (19.Kd1 Qe3 20.Kc2 Rac8 21.Kb1–+) 19...ed4 20.Ke1 de3 0–1. nay (2215) – huimre (2695), net–chess.com, 2007.

6.ab5 a6 7.c4 dc4 8.Bc4 Nd5 9.Nc3 Nc3 10.Bc3 Qc7 11.Qb3 Nd7 12.Nf3 Nc5 13.Qb2 Ne4 14.Be2 Nc3 15.dc3 Be7 16.0–0 0–0 17.Rfc1 Bd7 18.c4 ab5 19.cb5+= Ra1 20.Qa1 Qb6 21.Nd4 Bf6 22.Rb1 Rc8 23.h3 e5 24.Nf3 e4 25.Nd4 Be6 26.Qa4 Bd4 27.Qd4 Qd4 28.ed4 Bd5 29.f3 ef3 30.Bf3 Bf3 31.gf3 Rc4 32.Ra1 Kf8 33.Ra7 Rd4 34.Rb7 Rb4 35.Kf2 g6 36.Ke3 Kg7 37.Kd3 Kf6 38.Kc3 Rf4 39.b6 Rf3 40.Kd4 Rf1 41.Rc7+= Rd1 42.Kc5 Rb1 43.b7 h5? 44.Kc6 g5 45.Rc8 g4 46.h4 Kf5 47.b8Q Rb8 48.Rb8 f6 49.Kd5 g3 50.Rg8 Kf4 51.Ke6 f5 52.Kf6 Kf3 53.Kf5 g2 54.Rg2! Kg2 55.Kg5 Kf3 56.Kh5 Kf4 57.Kg6 Ke5 58.h5 Ke6 59.h6 Ke7 60.h7 Ke6 61.h8Q Kd5 62.Qe8 Kd6 63.Kf6 Kd5 64.Qe5 Kc4 65.Qd6 Kc3 66.Qd5 (66.Qd5 Kc2 67.Qc4 Kb1 68.Ke5 Kb2 69.Kd4 Kb1 70.Kc3 Ka1 71.Qb5 Ka2 72.Qb2) 1–0. elsh1403 – walselob, kurnik, 2011.

6.ab5 a6 7.c4 dc4 8.Bc4 Be7 9.Nf3 Qb6 10.Nc3 Nbd7 11.0–0 0–0 12.d4 Rd8 13.Qb3 Nf8 14.Ne5 Bd7 15.Nd7 Rd7 16.ba6 ba6?? 17.Qb6+– 1–0. nizinna – jiricek1966, kurnik, 2011.

6.ab5 a6 7.Nf3 Bd7 8.ba6 Na6 9.Ne5 g6 (better is 9...Be7=) 10.Nd7+– Qd7?? (better is 10...Kd7 11.Bb5 Kc8+–) 11.Bf6 Rg8 12.Nc3 Bg7 (12...Rc8 13.Bb5 Rc6 14.e4 de4 15.Ne4+–) 13.Bg7 Rg7 (13...Ke7 14.Bd4+–) 14.Bb5 Qb5 15.Nb5 Rc8 (15...Rd8 16.Qf3+–) 16.Nd6 Kd7 17.Nc8 Kc8 18.c4! dc4 19.Qc2 b5 20.Qb2 Nc7 21.Qg7 (21.Qg7 Kb7 22.Qf7+–) 1–0. pierre – possibly, internet, 2010.

6.ab5 Bc5 7.d4 Bb4 8.Nd2 Ne4 (8...Bd7 A) 9.c3 A1) 9...Ba5 10.Ngf3 (10.Bd3 a6 11.ba6 ba6 12.Nb3 Bc7 13.Nf3=) 10...Qc7 11.Ra3 a6 12.ba6 Na6 13.Bd3=; A2) 9...Be7 10.Ngf3 (10.c4 Bb4 11.Ngf3 Ne4 12.Ra4 Ba5 13.Qa1=) 10...0–0 11.c4 dc4 12.Bc4 Qb6 13.Qa4=; B) 9.Ngf3 Ne4 10.Bd3 Qb6 11.Be4 de4 12.Ne5 Bd2 13.Qd2=; C) 9.Bd3= a6 (9...Qc7 10.Ngf3 Ne4 11.0–0 0–0 12.Nb1 a5 13.c4+=; 9...0–0 10.Ba3 Ba3 11.Ra3 Qb6 12.Rb3 Qc7 13.Ngf3=) 10.ba6 ba6 11.Ngf3 0–0 12.0–0 a5 13.Qe2=) 9.Ngf3 (9.c3 Nd2 (9...Nc3? 10.Qb3+–) 10.Qd2 Bd6= 11.Ba3 Ba3 12.Ra3 a6 13.Nf3+=) 9...0–0 (9...e5 A) 10.Be2 Bc3 11.Qc1 ed4 12.ed4 Bg4 13.Bc3=; B) 10.h3 Nc3 11.Bc3 Bc3 12.Ra3 ed4 13.ed4=; C) 10.Ra4 Bc3 (10...Qe7 11.Qa1+= Nd2 12.Nd2 Bd2 13.Kd2+=) 11.Qa1 Nd2 12.Nd2 ed4 13.Bc3+=; D) 10.de5 Bg4 11.c3 Bc3 12.Bc3 Nc3 13.Qc2+=; 9...Bd7 10.Bd3 Qb6 11.Be4 de4 12.Ne5 Bd2 13.Qd2=; 9...Qb6 10.c3 Nd2 11.Nd2 Bd6 12.c4 dc4 13.Qa4+=) 10.Bd3 (10.Ba3 Qe7 (10...Qa5 11.Bb4 Qb4+= 12.c4 a5 13.Qa4+=) 11.Bb4 Qb4 12.c4 Bd7 13.Qc2+=; 10.c3 Nd2 11.Qd2 Bd6 12.Ba3 Ba3 13.Ra3+=) 10...Nd6 (10...Nc3!? 11.Bc3 Bc3= 12.Ra3 Bb4 13.Ra4+=) 11.0–0+= f5 (11...a6 12.ba6 (12.c3 Ba5 13.Qc2+=) 12...ba6 13.c3+=) 12.Nb3 (12.Ra4 Ba5 13.Ba3+/– (13.Qa1+/–)) 12...Qc7? (better is 12...Nc4!? 13.Bc4 dc4=) 13.c3! Bc3? (better is 13...Nc4!? 14.Bc4 dc4 15.cb4 cb3 16.Qb3 Bd7+/–) 14.Rc1+– Qb6 (14...Nb5 15.Bb5 Qb6+–) 15.Bc3 (15.Rc3?! Nb5 16.Bb5 Qb5+–) 15...Nb5 (15...Qd8 16.Qe2+–) 16.Ba5 Qa6 17.Ne5 (17.Qe2 Bd7+–) 17...Nd6 (17...Nc6 18.Rc6! bc6+–) 18.Ba6 (18.Ba6 Na6 19.Qf3+–) 1–0. Greer,V – Phillips,J, Arizona USA, 1980.

6.ab5 Bc5 7.Nf3 Qb6 (7...Nbd7 8.Be2=) 8.Bf6+= gf6 9.d4 White fights for the Initiative 9...Bb4 10.c3 Bd6 11.Nbd2 e5 (11...Qd8 12.Bd3+=) 12.Qb3+/– Be6 13.c4 dc4 14.Bc4 Be7 15.0–0 Nd7 16.Rfc1 Bc4 17.Nc4 Qd8 (17...Qe6 18.Na5 b6 19.Qe6 fe6 20.Nc6+/–) 18.Nh4 0–0 (18...Nb6+–) 19.Nf5 h5?? (19...a6+–) 20.e4 (20.e4 Kh7 21.Qe3 ed4 22.Qh6 Kg8 23.Qg7) 1–0. Woelfelschneider,Peter – Schulte, 2009.

6.ab5 Bd6 7.c4 0–0 8.Bf6 Qf6 9.d4 dc4 10.Bc4 Qg6 11.Qf3?? Bb4 12.Kd1–/+ Nd7 13.Ne2 Nb6 14.Bb3?? Qd3–+ 15.Kc1 Qb3 16.Qe4 Qc4 17.Qc2 Qc2 18.Kc2 Bd7 19.Nbc3 Rfc8 20.Kb3 Bc3 21.Nc3 Nd5 22.Nd5 ed5 23.Kb4 Rc4 24.Kb3 Bb5 25.Rhc1 a6 26.Rc4 Bc4 27.Kb4 b6 28.e4 f6 29.f4 Bb5 30.e5 fe5 31.fe5 Rc8 32.Rd1 Rc4 33.Ka3 Kf7 34.Rd2 Ke6 35.g4 Bc6 36.h4 a5 37.h5 b5 38.g5 Rc3 39.Kb2 b4 40.h6 gh6 41.gh6 Rh3 42.Rc2 Ba4 43.Rc7 Rh6 44.Ra7 Rh2 45.Kc1 Bc2 46.Ra5 b3 47.Kb2 Rh4 48.Ra6 Kd7 49.Kc3 Rh3 50.Kb2 Bf5 51.Rd6 Ke7 52.Rd5 Rh2 53.Kc1 b2 (53...b2 54.Kd1 b1Q) 0–1. ludice (1750) – marcin1996 (1725), kurnik, 2011.

6.ab5 Bd6 7.c4 dc4 8.Bc4 0–0 9.Nf3 Nbd7 10.0–0 Nb6 11.Be2 Bd7 12.d4 Qe7 13.Qb3 Rfc8 14.Nbd2 Nfd5 15.Ba3 Ba3 16.Ra3 Rc3 17.Qc3 Nc3 18.Rc3 Rc8 19.Ra3?? Qa3–+ 0–1. carocan (1780) – bogdankr (1985), kurnik, 2011.

6.ab5 Bd6 7.Nf3 0–0 8.c4 (8.Be2 Re8=) 8...dc4 9.Bc4 Nbd7 (9...a6 10.0–0=) 10.d4 Nb6 11.Bd3 Nfd5 12.Nc3 (12.Ba3 Nb4=) 12...Bb4 (12...Nb4 13.Ba3 Nd3 14.Qd3 Ba3 15.Ra3+=) 13.Qc2+= Qc7 14.Kd2 (better is 14.Rc1!?+=) 14...Nc4–/+ 15.Bc4 Qc4 16.Qd3 Qd3 (16...Qb3 17.Rhb1–/+) 17.Kd3 Bc3 (better is 17...Bd7!?–/+) 18.Bc3+= Bd7 19.Rhb1 f6 20.Ra2 (20.Bd2 Nc7 21.b6 Bb5 22.Kc2 ab6=) 20...e5= 21.e4 (21.de5? Bf5 22.Kd4 Nc3 23.Kc3 Bb1–+) 21...Nf4 22.Kd2 Ng2 23.Rg1 Nf4 24.de5 fe5 25.Ne5 Bb5 26.Nc6 (26.Ke3!?=) 26...g6 27.Na7 (27.Ne7 Kf7 28.Nd5 Bc4 29.Ra7 Ra7 30.Nf4 Rd8 31.Kc2 b5–+) 27...Ne2 (27...Rad8 28.Ke1 Nd3 29.Kf1–+) 28.Rg5 (better is 28.Rga1!? Rfd8 29.Kc2 Bd3 30.Kb3 Nc3 31.Kc3 Be4 32.Re2–/+) 28...Rad8–+ 29.Kc2 Bd3 30.Kb2 Rf2 (30...Rf2 31.Ra4 Ng3 32.Ka3 Ne4–+; 30...Nc3?! 31.Kc3 Be4 32.Nb5–/+) 0–1. Gedigk,Detlef – Andersson,Lars H, corr SOK–90–53, 1990.

6.ab5 Ne4 7.d3 (7.Nc3 Nf6=) 7...Nd6 (7...Nf6 8.Nf3=) 8.c4 b6 =. nay (2190) – nwishn (1900), net–chess.com, 2006.

6.ab5 b6

7.Nf3 Bd6 8.Ba3 0–0 (8...Ba3 9.Ra3 0–0 10.d4 Nbd7 11.Bd3 Qe7+=; 8...a5 9.ba6 0–0 10.Bd6 Qd6 11.a7 Nc6=; 8...a6 9.d4 0–0 10.Bd3 Bb7 11.Bd6 Qd6=) 9.d4 a6 10.Bd3 Bb7 11.Bd6 Qd6 =.

7.c4 Bd7 8.Nc3 dc4? 9.Bc4 Qc7? 10.Qb3?? Bd6 11.Nf3 0–0 12.0–0 Qd8 13.Ne2 Qe7 14.Rfc1 Be8 15.Ned4 Bc5 16.h3 Nbd7?? 17.Nc6+– Qd6 18.Be5 Ne5+/– 19.Nfe5 Bc6 20.Nc6 a5 21.d4 Bb4 22.Be2 Nd5 23.e4 Ne7 24.Bf3 Rfc8?? 25.e5+– Qd7 26.Nb4 Rc1 27.Rc1 ab4 28.Ba8 Qb5 29.Rc7 Ng6 30.Bc6 Qc4 31.Rc8 Nf8 32.Qc4 (32.Qc4 h5 33.Qb4 Kh7 34.Qf8 Kg6 35.Be4 f5 36.Rc7 fe4 37.Qg7 Kf5 38.Qf6) 1–0. elsh1403 – kikiki123, kurnik, 2011.

7.c4 Nbd7 8.Nf3 Bb7 9.d4 Bb4 10.Nc3 Ne4 11.Qc2 Bc3 12.Bc3 Nc3 (12...dc4 13.Rd1+= (13.Bc4 Rc8 14.Ra4 Qc7 15.0–0 Qc4 16.Rc4 Rc4 17.Qb2–/+) A) 13...Rc8 14.Be2 (14.Bb4 Qf6 15.Rc1 Bd5 16.Bd3 Ng5 17.Ng5+=) 14...Qf6 15.Ra1 Qg6 16.Rg1 Bd5 17.Ra7+=; B) 13...Bd5 14.Nd2 Nd2 15.Bd2 Qh4 16.Bb4 Nf6 17.Ra1+=) 13.Qc3 dc4 14.Bc4 (14.Qc4 Bf3 15.gf3 0–0 16.f4 Rc8 17.Qd3=) 14...Bf3 15.gf3 0–0 16.Ke2 (16.Bd3 Rc8 17.Qb4= (17.Qb2 Rc7=)) 16...Qf6 17.h4 (17.Bd3 Rfc8 18.Qb4 Rc7=) 17...Rfc8+= 18.Qb4 Rc7 19.Bd3 Rac8 20.Qd6 Nf8 21.Be4 Qe7 (21...Qh6!?=) 22.Qe7+/– Re7 23.Rhc1 Rec7 24.Rc7 Rc7 25.Kd2 Nd7 26.Rc1 (26.f4 Nf6 27.Bd3 g6+=) 26...Rc1 27.Kc1 Nb8 28.Bc6 (28.f4 g6+=) 28...a5= 29.ba6?? (29.f4 Kf8 30.Be4 g6=) 29...Na6?? (better is 29...Nc6 30.f4 Kf8–+) 30.Kb2 h5 31.Kb3 f6 (31...Kf8 32.Kc4 Nc7 33.f4=) 32.Kc4 Nc7 33.e4 (33.f4 Kf7+=) 33...g5 34.e5?? (better is 34.d5 ed5 35.ed5=) 34...gh4–+ 35.f4 h3 36.Kd3?? (better is 36.Bh1–+) 36...Nd5 37.Bd5 (37.Bd7 Kf8 38.Ke2–+) 37...ed5 38.e6 h2 39.e7 Kf7 (39...Kf7 40.f5 h1Q 41.e8Q Ke8–+) 0–1. Trkn – Pasatov, itsyourturn.com, 2000.

7.Qf3 Be7 8.Bd4 (8.Qg3 0–0 9.Be5 Nbd7 10.Bc7 Qe8 11.Nc3 Bb7=; 8.Bd3 Nbd7 9.Be2 Qc7 10.Nc3 Bd6 11.Qh3 e5=) 8...Bd6 9.Bf6 Qf6 10.Qf6 gf6 11.Nc3 Bb7 =.

7.Nf3 Bd6

8.Bd3 Nbd7 (8...0–0 9.Qe2 Qe7 10.0–0 e5 11.e4 de4=) 9.Qe2 e5 10.e4 Qe7 11.Nh4 Nc5 +=.

8.d4 0–0 (8...a5 9.Bd3 0–0 10.Ba3 Ne4 11.c4 f5+=) 9.Bd3 Ne4 10.Ba3 a6 11.Bd6 Qd6 +=.

8.Be2 0–0 9.0–0 a5 10.ba6 Ba6 11.Nc3 Be2 =.

8.Be2 Nbd7 9.0–0 0–0 10.d4 Bb7 11.Nbd2 Qc7 12.h3 Rfc8 13.c4 dc4 14.Bc4 Ne4 15.Rc1 Qd8 16.Ne4 Be4 17.Nd2 Bb7 18.f4 Nf6 19.f5 Bd5 20.fe6 fe6 21.Qe2 Qe7 22.e4 Bc4 23.Nc4 Bb4 24.d5 (24.Ne5!? Rc1 25.Bc1+/–) 24...ed5= 25.Bf6 gf6 26.Qg4 Kh8 27.ed5 Rg8 28.Qf3 Bc5 29.Kh1 Raf8 30.Nd2 Qe5 (30...Qd7 31.Nb3 Qb5 32.Nc5 bc5 33.Qf2+/–) 31.Ne4 Bd4 32.Qf5 Rg7 33.d6 Qf5 34.Rf5 Be5 35.g4 Rd7 36.g5 Rdf7 (36...Re8 37.Nf6 Bf6 38.Rf6+– (38.gf6?! Rd6 39.Kg2 Rd2 40.Kg3 Rd3 41.Kf2 Rh3+=)) 37.gf6 Bf6 (37...Bd4+–) 38.Rf6 (38.Rf6 Rf6 39.Nf6 Rf6 40.d7+–) 1–0. Lorenc,Tomas (2090) – Ruzicka,Jiri (1655), Karlovy Vary op, 2009.

8.Be5 0–0 (8...a5 9.ba6 0–0 10.a7 Nc6 11.d4 Bb4=; 8...a6 9.d4 0–0 10.Bd3 Bb4 11.c3 Bd6+=) 9.d4 a5 10.Bd6 Qd6 11.Ra4 Nbd7 =.

7.Nf3 Nbd7

8.Nc3 e5 9.Be2 Bd6 10.Ba3 Qc7 11.0–0 Ba3 +=.

8.c4 Nc5 9.Be2 a6 10.0–0 a5 11.Ba3 Qc7 12.d4 Ncd7 13.Bf8 Kf8 14.cd5 Nd5 15.Qc1 Ra7 (15...Qc1 16.Rc1 Bb7 17.Nc3=) 16.Nbd2 (16.Qa3 Kg8+/–) 16...Ke7 (16...Qc1 17.Rfc1 Ke7 18.Ra4+=) 17.Qc7 (better is 17.Nc4!?+/–) 17...Rc7= 18.Rfc1 Rc1 19.Rc1 Bb7 20.Ne1 Rc8 21.Rc8 Bc8 22.Nd3 Nc3 23.Nc1 Nf6 24.Bd3 Bd7 25.Nc4 Bb5 26.Nb6 Bd3 27.Nd3 Nfd5 28.Nc4 a4 29.Na3 Kd6 ½–½. hal1958 – schnitzly, playchess.de, 2003.

8.d4 Be7 (8...Bb4 9.Nbd2 a5 10.Bd3 0–0 11.0–0 Qe7=) 9.Bd3 0–0 (9...Bb4 10.Nbd2 Ba5 11.Qe2 Ne4+=) 10.0–0 g6 (10...Bb7 11.Nbd2 Ne4+=) 11.Nbd2 Qc7 12.Qe2 Bb7 13.Ra2 Nh5 (13...Ne4!?+/–) 14.Rfa1 Qb8 15.g4 (15.Ba3!? Ba3 16.Ra3+/–) 15...Ng7 16.e4 de4 17.Be4 Be4 18.Ne4 f5 19.gf5 ef5 (19...Rf5!? 20.c4 Nh5+/–) 20.Neg5+– Bg5 21.Ng5 Qd8?? (better is 21...h6 22.Qc4 Kh8+–) 22.Qc4 (22.Qc4 Kh8 23.Nf7 Rf7 24.Qf7+–) 1–0. Borrmann,Fritz – Piegeler,Wilhelm, corr, 1966.

8.Nd4 e5 9.Nc6 Qc7 10.d4 e4 11.c4 Bb7 =.

8.Be2 Qc7 9.0–0 e5 10.d4 e4 11.Nfd2 Bd6 =.

8.Ne5 Ne5 (8...Bd6 9.f4 0–0 10.Bd3 Qc7 11.Nd7 Nd7=; 8...Bc5 9.Nd7 Bd7 10.Be5 0–0 11.d4 Bb4+=; 8...Qc7 9.Nd7 Bd7 10.Bf6 gf6 11.c3 Bd6=; 8...Bb7 9.Be2 Bd6 10.Nd7 Nd7 11.d4 Bb4+=) 9.Be5 Bd6 10.Bd6 Qd6 11.Be2 e5 =.

6.ab5 Qb6

7.Nc3 Bd6 8.Nf3 e5 9.Na4 Qd8 (9...Qc7 10.Be5 Be5 11.Ne5 Qe5 12.Nb6 ab6 13.Ra8=) 10.c4 (better is 10.Be5 Be5 11.Ne5+/–) 10...Qe7?? (10...Nbd7 11.c5 Nc5 12.Nc5 Bc5 13.Be5=) 11.Be2?? (11.Nb6 ab6 12.Ra8 0–0+–) 11...0–0? (11...Nbd7 12.c5 Nc5 13.Nc5 Bc5 14.Be5=) 12.c5 Bc5 (12...Bc7!?+=) 13.Nc5+/– Qc5 (13...e4 14.Bf6 gf6+/–) 14.Ne5 (14.Ba3 Qb6 15.Bf8 e4+–) 14...Nbd7? (14...Re8 15.Bd4 Qd6 16.Qc2+=) 15.Bd4 (better is 15.Ba3!? Qb6 16.Nd7 Bd7 17.Bf8 Rf8 18.Qb3+–) 15...Qd6+= 16.Nd7 Bd7 17.0–0 a6 18.ba6 ba6 19.Qb3 (19.Ra5 Rfc8+/–) 19...Rab8 20.Qa3 Qa3 21.Ra3 Bb5 22.Bb5 ab5 23.Bf6 gf6 24.Rb3 Kh8 (better is 24...Rb7!?+=) 25.Rfb1+– Rfc8 26.Kf1 (26.Rb5?? Rb5 27.Rd1 Kg7–+) 26...Rc2 27.Ke2 Rg8 28.g3 Rc5 29.Rb5 Rgc8 30.Rc5 Rc5 31.Rb6 Kg7 32.d4 Rc1 (32...Ra5 33.Rc6 Ra8 34.h4+–) 33.h4 Rc2 34.Kf3 Rc8 35.Rd6 Rc2 36.Rd5 Kg6 37.Rc5 (37.Rc5 Rb2 38.e4+–) 1–0. vhilts (2500) – jboger (2140), net–chess.com, 2012.

7.c4 dc4 8.Bf6 gf6 9.Bc4 Bd7 10.Qb3 Bg7 11.Nc3 0–0 12.Nf3 Rc8 13.d3 a6 14.0–0 Be8 15.Rfb1 Nd7 16.ba6 Qb3 17.Rb3 ba6 18.Ra6+/– Ra6 19.Ba6 Ra8 20.Bc4 Ra1 21.Rb1 Rb1 22.Nb1 Ne5 23.Ne5 fe5 24.e4 Bd7 25.Nd2 Kf8 26.g4 Ke7 27.Kg2 f5 28.h3 fg4 29.hg4 Bh6 30.Nf1 Kf6 31.Ng3 Kg5 32.f3 Kf4 33.Nf1 Bf8 34.Kf2 Kg5 35.Ke2 h5 36.gh5 Kh5 37.Ne3 Kg5 38.Ng4 Kf4 39.Nf2 Bc5 40.Nd1 Bb4 41.Nb2 Bc3 42.Nd1 Bb4 43.Ne3 Bc5 44.Ng2 Kg5 45.Ne1 Kf4 46.Nc2 Bb6 47.Nb4 Bc5 48.Na6 Bb6 49.Nb8 Bc7?? 50.Nd7+– Bd6 51.Be6 Be7 52.Bg4 Bd6 53.Nb6 Be7 54.Nc4 Bf6 55.Ne3 Kg5 56.Nd5 Bg7 57.Ke3 Kg6 58.Nb4 Kf7 59.f4 ef4 60.Kf4 Ke7 61.e5 Bh6 62.Kf5 Bd2 63.Nd5 Ke8 64.e6 Bc1 65.Bh5 Kd8 66.e7 Kd7 67.e8Q Kd6 68.Nc3 Bb2 69.Qe5 Kc6 70.Qb5 Kd6 71.Qb2 Kc6 72.Qb5 Kd6 73.Qd5 Kc7 74.Qe6 Kb7 75.Qd6 Kc8 76.Qe7 Kb8 77.Ke6 Kc8 78.Kd6 Kb8 79.Kc6 Ka8 80.Qb7 1–0. ludice (1665) – grzekot, kurnik, 2011.

7.Bd4 Bc5 8.Bf6 gf6 9.Qg4 Ke7 10.Nf3 Bd7 11.Nc3 a6 12.Qg7 Rc8 (12...Qd8 13.e4 Rg8 14.Qh7+=) 13.Nh4+/– Bb4 (better is 13...Qd8!? 14.Qh7 Qg8 15.Qg8 Rg8+/–) 14.Nf5!+– Kd8? (14...ef5 Deflection from d5 15.Nd5 Theme: Double Attack) 15.Qf6 Kc7 16.Na4 Qa5 17.b6 Kc6 18.Nd4 Kd6 19.Nf5 (19.c3!? Ba4 20.cb4 Qb6 21.Ra4 Rc1 22.Ke2 Nd7 23.Qf7 Nf8+–) 19...Kc6 20.c3 Bc5 21.c4 Bb4 (21...Qb4 22.cd5 Kd5 23.Nc3 Kc6+–) 22.cd5 Qd5 23.Rc1 (23.Rc1 Bc5 24.Qe7 Qd2 25.Kd2 Kd5 26.Rc5 Rc5 27.Qc5 Ke4 28.Bd3) 1–0. Bonetti,Shane – Tschope,Frank, T15–11 ETC, 2004.

7.Nf3 Bd7 =.

6.ab5 Bd7

7.c4 a5 8.Be5 A) 8...Bc8 9.Nf3 Nbd7 10.Bc3 Bd6 11.cd5 ed5 12.Be2 0–0 13.0–0 Re8; B) 8...Be7 9.Nc3 (9.Qf3 0–0 10.Nc3 Bc8 11.Qg3 Nbd7 12.Bc7 Qe8 13.Nf3 Bb4) 9...Bc8 10.cd5 ed5 11.Be2 Nbd7 12.Bd4 0–0 13.Nf3 Nc5; C) 8...dc4 9.Bc4 Nd5 10.Nc3 Nb6 11.Bb3 f6 12.Bd4 Qc7 13.Qh5 Kd8; D) 8...Bc5 9.Nc3 dc4 10.Bc4 Bc8 11.Bf6 Qf6 12.Ne4 Qh4 13.Qc2 Bb4; E) 8...Bb4 9.Qf3 (9.Nc3 dc4 10.Bc4 Bc8 11.Nf3 Nbd7 12.0–0 Ne5 13.Ne5 Qc7) 9...a4 (9...Qc8 10.Qg3 Bf8 11.Nc3 dc4 12.Ra4 Nd5 13.Rc4 Qd8) 10.cd5 Nd5 11.Bg7 Rg8 12.Bd4 Qc7 13.Bd3 Qc1.

7.c4 a5 8.Nf3 b6 9.Nc3 (9.Be5 Bb4 10.Nc3 0–0 11.cd5 Nd5 12.Qc2 Qe8 13.Qd3 Nc3; 9.Qa4 dc4 (9...Ne4 10.Nc3 Ra7 11.cd5 Nc3 12.Bc3 ed5 13.Be2 Be6; 9...Na6 10.d4 Bb4 11.Bc3 Nc7 12.Ra2 Ne4 13.Bb4 ab4) 10.Bc4 Bd6 11.0–0 Bc8 12.d4 Bb7 13.Nbd2 Ne4; 9.Ra4 Bd6 (9...Bc5 10.Ne5 0–0 11.Qf3 Bd6 12.d4 Ne4 13.Ba3 Ba3; 9...Be7 10.Ne5 Bc8 11.d4 Bb7 12.Ba3 dc4 13.Bc4 Ba3; 9...Bb4 10.Bc3 Be7 11.cd5 ed5 12.Bf6 Bf6 13.d4 Qc7) 10.Be5 Qe7 11.d4 Bb4 12.Nfd2 0–0 13.Bd3 dc4; 9.Ne5 Bd6 (9...Qc7 10.Ra4 Bb4 11.Nd3 Be7 12.Qf3 Ra7 13.Be5 Qb7; 9...dc4 10.Bc4 Bc8 11.0–0 Bd6 12.f4 Bb7 13.Ra4 0–0; 9...Bb4 10.Qf3 0–0 11.Be2 Ra7 12.0–0 Bc8 13.Nc6 Nc6; 9...Bc8 10.cd5 ed5 11.Qc2 Be6 12.Bd3 Bd6 13.Nc6 Nc6) 10.Ng4 Ne4 11.d3 Bb4 12.Ke2 Qg5 13.f3 Nd6) 9...Bb4 (9...Bd6 10.Na4 dc4 11.Bd4 Bc7 12.Bc4 Bc8 13.Ne5 Bb7; 9...Be7 10.Na4 Bc8 11.cd5 ed5 12.Ne5 0–0 13.Rc1 Nfd7) 10.Qb3 (10.Na4 dc4 11.Bc4 Bc8+= 12.Bf6 gf6 13.0–0 Bb7) 10...0–0 (10...dc4!? 11.Bc4 0–0= (11...Bc8 12.0–0 Bb7 13.Be2 0–0) 12.0–0 Bc8 13.d3 Bb7) 11.cd5+= Bc3 12.Qc3 ed5 13.Bd3 Be6 (13...Re8+=) 14.Ng5 h6 15.Ne6 fe6 16.Ba3 Rf7 17.Bg6 Rc7 18.Qe5 Nbd7 (better is 18...Qd7!?+/–) 19.Qe6+– Kh8 20.0–0 Nc5 (20...Qg8 21.Qd6 Rac8 22.d3+–) 21.Qb6 Rb8? (better is 21...Nb3 22.Ra2 Rb8+–) 22.Bc5 (22.Qa5?! Nb3 23.Qb4 Na1 24.Ra1 Ne4+/–) 22...Rb6 (22...Nd7 23.Be7 Nb6 24.Bd8 Rd8 25.Ra5+–) 23.Bb6 Qd7 24.Bc7 Qc7 25.Rfc1 Qd7 (25...Qd8 26.Rc6 Nd7+–) 26.Rc8 (better is 26.Ra5 Qb7 27.b6 Ng8+–) 26...Ng8?? (better is 26...Qc8 27.d4 a4–+) 27.Ra5 Qc8–/+ (27...Qc8 28.Ra1 Qg4+=). pierre – NN, internet, 2008.

7.c4 a5 8.Nf3 dc4 9.Bc4 Bd6 10.0–0 0–0 11.d3 b6 12.Ne5 Qc7 13.f4 Bc8.

7.c4 a5 8.Nf3 Bd6 9.Be5 (9.d4 dc4 10.Bc4 Qc7 11.Nbd2 0–0 12.Ba3 Rc8 13.0–0 Ba3) 9...Be5 (9...Bb4 10.cd5 ed5 11.Nc3 Be6 12.Be2 0–0 13.0–0 Nbd7; 9...Be7 10.Qa4 0–0 11.d4 dc4 12.Bc4 Nd5 13.Bd3 f6) 10.Ne5 0–0 11.d4 Bc8 12.c5 b6 13.c6 Ra7.

7.c4 a6 8.Nc3 Bb4 9.Nf3 Bc3 10.Bc3 0–0 11.Be2 dc4 12.Bc4 Qe8 13.Qb3 Ne4? 14.Bb2?? Nd6+= 15.Qc3 Nb5?? 16.Qg7 1–0. elsh1403 – treli, kurnik, 2011.

7.c4 Bb4 8.Nf3 0–0 9.Qb3 a5 (9...Qe7 10.Bd4=) 10.Nc3 (10.ba6 Na6 11.Nc3=) 10...dc4 11.Bc4 Qc7 12.0–0 Rc8 13.Be2 Be8 14.Rfc1 Qd6 15.d4 Nbd7 16.g3 (16.Na2!?+/–) 16...Nb6 17.Ne5 Nfd5 18.Nc4 ½–½. usingprogram (2070) – tricvaidzins, kurnik, 2013.

7.c4 b6 8.Nf3 Bc5 9.Qb3 dc4 10.Bc4 0–0 11.0–0 Qc7 12.d3 a5 13.Nbd2 Rd8 14.Rfc1 Qd6 15.h3 Be8 16.e4 Qe7 17.Ne5 Nh5 18.Ndf3 Nf4 19.d4 Bd6 20.Bf1 Be5 21.Ne5 Nd7? 22.Nc6+– Qg5 23.Nd8 Rd8 24.Qg3 h6 25.Qg5 hg5 26.g3 Ng6 27.Rc7 Nf6 28.Bg2 Bb5 29.Rb7 Bd3 30.e5 Nd5 31.Bd5 Rd5 32.Rb6 Be4 33.Bc3 Kh7 34.Ra5 Rd7? 35.Kf1 Bf3 36.Ke1 Bg2 37.Ke2 Bh3 38.Ra4 Bf5 39.Ke3 Ne7 40.Bb4?? Nd5–+ 41.Kd2 Nb6 42.Bc5 Na4 (42...Na4 43.Bd6 Rb7–+) 0–1. carocan (1700) – 007pacino, kurnik, 2011.

7.c4 b6 8.Nf3 Qc7 9.Qb3 dc4 10.Bc4 Be7 11.0–0 0–0 12.Rc1 Qd8 13.d4 Bc8 14.Nbd2 Bb7 15.Ba3 Nbd7 16.Ra2 Nd5 17.Rca1 Ba3 18.Ra3 Qb8 19.Ra4 Rc8 20.Qa2?? Nc3–/+ 21.Qb3 Na4 22.Ra4 a5 23.Be6 fe6 24.Qe6 Kh8 25.Qd7 Qc7 26.Qc7+= Rc7 27.h3 Rc2 28.Nc4+/– Bf3 29.gf3 Rb8 30.e4 Kg8 31.d5 Kf7 32.e5 Ke7 33.Kg2 g6 34.f4 Rc1 35.Ne3 Rc5 36.Kf3 Rb5 37.Ke4 Rb4 38.Rb4 ab4 39.f5 b3 40.Nc4?? Rc8 41.d6 Ke8 42.Nb6? Rc2?? 43.f6+= b2 44.e6 b1Q?? 45.f7 Kf8 46.Nd7 Kg7 47.f8Q 1–0. carocan (1790) – istogu, kurnik, 2011.

7.Nf3 a6 8.c4 (8.Be5 Be7+=) 8...a5 (8...Bd6 9.Be5 Qe7 10.d4+=) 9.Qb3 (9.Qa4 Be7+=) 9...dc4 (9...Bb4 10.Nc3+=) 10.Bc4+= b6 (10...Bd6 11.0–0+=) 11.0–0 Be7 (11...Bc8 12.d3+=) 12.Nc3 0–0 13.d4 Bc8 14.Rfd1 (14.d5 ed5 15.Nd5 Nd5 16.Bd5 Ra7+/–) 14...Bb7 (14...Nbd7 15.Ne5 Ne5 16.de5+=) 15.Ne5 (15.d5 ed5 16.Nd5 Nd5 17.Bd5 Bd5 18.Rd5 Qc8+=) 15...Nd5 16.Na4 Bb4 (16...Bd6 17.e4 Nb4 18.Nc5 Be5 19.de5+=) 17.Rac1 (17.e4 Nf6 18.Be6 fe6 19.Qe6 Kh8+/–) 17...Qd6 (17...Re8 18.e4 Nf6 19.f3+=) 18.e4+/– Nf6 (18...Ne7 19.Bd3 Qd8 20.Qc2+/–) 19.f3 (19.Nf7 Kf7 20.e5 Qe7 21.ef6 Qf6 22.Be6 Ke7 23.Rc7 Kd8+–) 19...Nbd7 (19...Nfd7+/–) 20.Nd7 (20.Nc6!? Bc6 21.e5+/–) 20...Qd7?? (better is 20...Nd7 21.Qe3 Rfd8+=) 21.Nb6+– (21.Nb6 Qe7 22.Na8 Ra8 23.Bc3 Bc3 24.Rc3+–) 1–0. Bittner (Bittorf,Hannjoerg??) – Hartmann, 1987.

7.Nf3 Be7 8.Be2 0–0 9.0–0 Qb6 10.Nc3 a6 11.Bd3 Rc8 12.Ne5 Be8 13.f4 Nbd7 14.Na4 Qc7 15.Nd7 Bd7 (15...Qd7? 16.Nb6 Qd8 17.Nc8 Qc8 18.f5+–) 16.Be5 Qd8 17.ba6 ba6 18.Nc3 a5 19.Qe2 Bb4 20.Rab1 Bc6 (20...Bc3!? 21.Bc3 Ne4=) 21.Ba6+= Bc3 22.Bc8 Rc8 (better is 22...Ne4!? 23.Bc3 Nc3 24.dc3 Qc8+=) 23.Bc3+– (23.dc3?! Ne4+=) 23...a4 24.Bf6 Qf6 25.Qd3 Ra8?? (better is 25...Qd8+–) 26.Qa6!! e5 (26...Ra6 27.Rb8 Mate attack) 27.Qa8!! Ba8 (27...Ba8 28.Rb8 Mate attack) 28.Rb8 Qd8 29.Rd8 1–0. usingprogram (2060) – gogopikachu, kurnik, 2013.

7.c4 dc4

8.Bc4 a6 9.Nc3 Be7 10.Nf3 0–0 11.0–0 Qc7 12.d3 Rd8 (12...Bc8 13.Qe2+/–) 13.Qb3 a5 (13...Bd6 14.Ne2+/–) 14.Ne4 (14.Rfc1 Be8+–) 14...b6 (14...Ne4 15.de4 Be8 16.Rfc1+/–) 15.Ne5 (15.Nf6!? Bf6 16.Bf6 gf6 17.Rfc1+/–) 15...Be8 (15...Ne4 16.de4 Bc8 17.Rfc1+=) 16.Nf6 Bf6 17.d4 (17.f4!?+/–) 17...Be5+= 18.de5 Nd7 19.Rfd1 (19.Rfc1 Ne5 20.Be6 Qd6+=) 19...Nc5 (19...Ne5!? 20.Be2 Nd7=) 20.Qc2 (20.Qa3 Rd1 21.Rd1 a4+=) 20...Qe7 (20...Rac8 21.Rd8 Qd8 22.Rd1+=) 21.Ba3 (21.Bd4 a4+/–) 21...Rd7 (21...Rac8 22.f4+=) 22.Rd7 Bd7 23.Rd1 Rd8 (23...Rc8 24.Qe2+/–) 24.f4 (24.Rd6 Nb7 25.Rb6 Qa3 26.Rb7 Qa1 27.Bf1 Be8+/–) 24...Bc8 (24...Rc8 25.e4+/–) 25.Rd8 (25.Bd3 Kh8+/–) 25...Qd8 26.h3 (26.Bc5 bc5 27.Qe4 Qd2+/–) 26...Qe7 (26...Bb7 27.Be2+=) 27.Kh2 (27.Qd1 h6+=) 27...Bb7 28.Bc5 (28.Qd1!?+=) 28...Qc5= 29.Qb3 (29.Bd3!?=) 29...Be4 (better is 29...Bd5 30.Bd5 ed5–/+ (30...Qd5?! 31.Qc2 Qd8 32.Kg3=)) 30.Kg3? (30.Qd1 Bd5 31.Bd5 ed5=) 30...h6?? (better is 30...a4 31.Qa4 Qe3 32.Kh2 Qf4 33.Kg1 Qe5–+) 31.Bd3?? (better is 31.Kf2+=) 31...Qe3–+ 32.Kh2 Qf4 33.Kh1 Qc1 (better is 33...Qg3 34.Qc2 Qh3 35.Kg1 Qd3–+) 34.Kh2 Qf4 (better is 34...a4 35.Qc4 Qc4 36.Bc4 a3–+) 35.Kh1 Bd3 (better is 35...Qg3 36.Qb2 Qh3 37.Kg1 Qd3–+) 36.Qd3 Qe5 (36...Qf2!? 37.Kh2–+) 37.Qd8 Kh7 38.Qb6 g6?? (better is 38...a4 39.Qa5 Qa1 40.Kh2 a3–+) 39.Qa5= (39.Qa5 Qc5 40.Qa6=). stoker – henroo1, Live Game Caissa's Web, 2004.

8.Bc4 a6 9.Nf3 a5 10.Qb3 b6 11.0–0 Be7 12.d3 0–0 13.Nbd2 Be8 14.Ne5 Nbd7 15.Nc6 Qc7?? 16.Ne7+– (16.Ne7 Kh8 17.Qc3+–) 1–0. carocan (1710) – dorian777 (1675), kurnik, 2011.

8.Bc4 Bb4 9.Qb3 Be7 10.Nf3 0–0 11.0–0 a6 12.d4 a5 13.Ne5 b6 14.Nd2 Bb4 15.Ndf3 Bc8 16.Ba3 Ba3 17.Qa3 Bb7 18.Rfc1 Nbd7 19.Nc6 Bc6 20.bc6 Nb8 21.Bb5 Qc7 22.Ne5 h6 23.f3 Na6 24.Ba6 Ra6 25.Qa4 Rc8 26.Qb5 Raa8 27.e4 Rab8 28.Rc4 g6? 29.g4?? Ne8+= 30.Rc2 Nd6 31.Qa4 Ra8 32.d5 ed5 33.ed5 b5 34.Qf4 Kg7 35.Nd7 a4 36.Qf6 Kh7 37.Re2 Rg8?? 38.Re7+– Rg7 39.Nf8!! Kg8 40.Rc7 Nc4 41.Ne6! Rh7 42.d6! a3 43.d7 fe6 44.Rc8 (44.Rc8 Rc8 45.dc8Q; 44.d8Q Rd8 45.Qd8) 1–0. carocan (1775) – kami222 (1750), kurnik, 2011.

8.Bc4 Qb6 9.Qb3 Bc5 10.Nf3 0–0 11.0–0 Be8 12.d4 Bd6 13.Nbd2 Nbd7 14.Ba3 Ba3 15.Ra3 Rc8 16.Rfa1+– Ra8 17.Be2 Nd5 18.Nc4 Qd8 19.Ra7 Ra7 20.Ra7 Qb8 21.Ra1 N7b6 22.Nb6 Nb6 23.Ne5 Nd5 24.b6 Qd6 25.Nc4 Qb4 26.Qb4 Nb4 27.Ra7 Bc6 28.Ne5 Be4 29.f3 Bd5 30.e4 Bc6 31.Nc6 Nc6 32.Rb7 Nd4 33.Kf2 Rc8 34.Rc7 Rb8 35.b7 Nc6 36.Rc8 Rc8 37.bc8Q Nd8 38.Qd8 1–0. carocan (1785) – 555tolo444, kurnik, 2011.

8.Bc4 Qb6 9.Nc3 Bb4 10.Qb3 Bc3 11.Bc3 0–0 12.Nf3 Ne4? 13.Bd4 Qc7 14.Ra7 Ra7 15.Ba7 Qa5 16.Bd4 Rc8 17.Qd3 Bb5 18.Bb5? Rc1–+ 19.Ke2 Rh1 20.Qe4 Qb5 21.Qd3 Qd3 22.Kd3 Rb1 23.Kc2 Rb5 24.Ne5 f6 25.Nd3 e5 26.Bc3 Nc6 27.Nb4?? Nb4 (27...Nb4 28.Bb4 Rb4–+) 0–1. nizinna – diklo, kurnik, 2011.

8.Bc4 Qb6 9.Nc3 Bb4 10.Nf3 Bc3 11.Bc3 Bb5 12.Rb1 a6+= 13.0–0 Nc6 14.Qb3 Na5 15.Ba5 Qa5 16.Bb5 ab5 17.Qb5 Qb5 18.Rb5 0–0 19.Rb7 Ra2 20.d4 Ne4 21.Ne5 Nd2 22.Rd1 Ne4 23.Rf1 Nd2 24.Rd1 Ne4 25.Nd3 Rc8 26.f3 Nd6 27.Rd7 Nf5 28.e4 Ne3 29.Rc1 Rc1 30.Nc1 Rg2 31.Kh1 g6 32.d5? Rd2?? 33.de6=+ Rc2?? 34.ef7+– Kf8 35.h4?? Rd2?? 36.Rd2+– (36.Rd2 Nc4 37.Rd8 Kf7 38.Rd7 Kg8 39.Nd3+–) 1–0. elsh1403 – joromaximus, kurnik, 2011.

8.Bc4 Qc7 9.Qb3 Be7 10.Nf3 0–0 11.0–0 b6 12.Rc1 Qd8 13.d4 Bc8 14.Nbd2 Bb7 15.Ba3 Nd5 16.Be7 Qe7 17.Ra4 a5 18.ba6! Ba6 19.Ba6 Ra6+= 20.Ra6 Na6 21.e4 Ndb4 22.g3 Rd8 23.Rc4 h6 24.Kg2 b5 25.Rc1 Qb7 26.Qc3 Na2 27.Qc6 Qc6 28.Rc6 Nb8 29.Rb6 b4 30.Nb3 Nd7 31.Rb7 Nf6 32.Nfd2 Rc8 33.Nc5 Rd8 34.Ndb3 Nc3 35.f3 Na2 36.Kf2 Ne8 37.Ke3 Nd6 38.Ra7 Nc3 39.Kd3 Ncb5? 40.Ra4+– Ne8 41.Rb4 Nbd6 42.Na6 Ra8 43.Nbc5 1–0. carocan (1805) – istogu, kurnik, 2011.

8.Bc4 Bc8 9.Nf3 Nbd7 (9...Bd6 10.Ba3 (10.Be5 Be5 11.Ne5 Nbd7 12.Nd7 Bd7 13.d4=; 10.0–0 0–0 11.Be5 Be5 12.Ne5 Nbd7 13.Nd7+=; 10.d4 0–0 11.Ba3 a6 12.Bd3 b6 13.Qe2+=) 10...0–0 11.d4 a5 12.0–0 Ba3 13.Na3+=) 10.0–0 (10.d4 Bb4 11.Nbd2 Nb6 12.Bd3 a6 13.0–0+=) 10...b6 (10...Nb6 11.Be2+= Bd6 12.Be5 Be5 13.Ne5+=) 11.d4+/– (11.Qe2 Bb7 12.d4 Bd6 13.Rc1+/–) 11...Bb7 12.Nbd2 (12.Qe2 Bd6 13.Nbd2+/–) 12...Bb4 (12...Be7 13.Qa4+/–) 13.Qb3 (13.Ra4+/–) 13...Bd2 14.Nd2 0–0 15.Bd3 Re8 16.f4 Ng4 17.e4 f5 18.Bc4 (18.ef5? Qh4 19.Nf3 Bf3–+) 18...Qf6 19.h3 Nh6 20.d5 Qg6 21.Rf3 Nc5 22.Qc3 Qf6 (22...Re7 23.Rg3 Qf7 24.de6+–) 23.Qa3 (23.Qf6 gf6 24.de6+– (24.Bf6?! fe4 25.Rg3 Kf7=)) 23...Qe7? (better is 23...Qf8!? 24.Rg3 Re7+/–) 24.Rg3+– Qh4?? (24...g6 25.Qc3 Kf8 26.Qh8 Ng8 27.d6+–) 25.de6 (better is 25.Rg7 Kf8 26.Rb7 Qf4 27.Nb3 Qe3 28.Kh1+–) 25...Re7 26.Qc3 Qf4 (26...Ng4 27.Ra7! Rd8+–) 27.Qg7! Rg7 (27...Rg7 28.e7) 28.e7 Nf7 (28...Bd5 29.Rg7 Kh8 30.Rg6 Qe5 31.Be5) 29.Rg7 (29.Rg7 Kh8 30.Rf7 Qe5 31.Be5 Kg8 32.Rf8) 1–0. Brinks,Jan Willem – Soeteman,Jeroen, NED–ch U20 op, 2000.

8.Bc4 Bd6 9.Nc3 0–0 10.Nf3 Qc7 11.Bd3 a6 12.g4 Ng4 13.Bh7 Kh7 14.Ng5 Kg8 15.Qg4 Bb5?? (better is 15...Rd8+/–) 16.Nb5+– ab5 17.Ra8 Be5 (17...e5 18.Qh5 Rc8 19.f4+–) 18.Qh5 Rc8 (18...Rd8 19.Be5 Qc1 20.Ke2 Rd2 21.Kf3 Qh1 22.Kg3 Qg1 23.Kh4 Qg4 24.Kg4 Rd4 25.ed4 f5 26.Kf4 b4 27.Rb8) 19.Be5 Qe5 20.Qf7 Kh8 21.Qh5 Kg8 22.Qh7 Kf8 23.Qh8 Ke7 24.Qc8 Qg5 25.Rb8 1–0. BlackDemon (2610) – Dayunior, FICS rated standard game, 2013.

8.Bc4 Bd6 9.d3 e5 10.Nf3 Qe7 11.0–0 0–0 12.Qe2 Bg4 13.h3 =.

8.Bc4 Bd6 9.Nf3 0–0 10.d3 (10.0–0 Qe7 11.d3 e5 12.Qe2 Bg4 13.h3=) 10...Qe7 11.Ne5 Rc8 12.Nd2 Qe8 13.Qf3 =.

8.Bc4 Ne4 9.d3 Nd6 10.Nc3 =.

8.Bc4 Be7

9.Nc3 0–0 10.Nf3 =.

9.Nc3 Qc7 10.Bd3 (10.Qb3 a5=) 10...0–0 11.Na4 (11.Qf3 Rc8+=) 11...Rc8 (11...a6 12.Nc3+=) 12.Bd4 (better is 12.Nf3+=) 12...Qd8?? (better is 12...e5 13.Ba7 A) worse is 13...Ra7 14.b6 Ba4 15.bc7 Bd1 16.Ra7+/– (worse is 16.cb8R Ra1 17.Rc8 Bf8+=); B) 13...b6 14.Nb6 Ra7 15.Nc8 Bc8 16.Ra7 Qa7+=) 13.Nb6!+– ab6 Exploits the pin. (13...Qb6 14.Bb6) 14.Ra8 Bc5 15.Be5 Be8 16.Qb3 (16.Qc2 Be7 17.Bc3 e5+–) 16...Nbd7 (16...Bd6 17.Bc3+–) 17.Rc8 Qc8 18.Bb2 Nd5 (18...Bd6 19.Qc2 Qc2 20.Bc2+–) 19.Bh7?? (19.Bh7 Kh7 20.Ne2=; better is 19.Nf3+–) 1–0. Kasper,Peter – Neubauer,Wolfgang, Spree op, 1997.

9.Nf3 Qb6 10.Nc3 a6 11.Qb3 0–0 12.0–0 Ra7 (12...Rc8 13.Rfc1+=) 13.Ne5 (13.Na4 Qd8+=) 13...Be8 (13...Rc8 14.Rfc1+=) 14.d4 (14.Na4 Qd6 15.Bd4 ab5 16.Ba7 ba4 17.Qb7 Nc6+/–) 14...ab5 (14...Nfd7!?+/–) 15.Ra7 (worse is 15.Nb5 Ra1 16.Ra1 Ne4+=; 15.Bb5?! Ra1 16.Ra1 Bb5 17.Nb5 Rc8+=) 15...Qa7 16.Nb5 (16.Be6!? Nc6 17.Bf5+/–) 16...Qb6+= 17.Ra1 (17.Rb1 Nc6 18.Ba3 Ba3 19.Qa3 Ne5 20.de5 Ng4+=) 17...Nc6 18.f3?? (18.Bd3 Nd5+=) 18...Ne5 (better is 18...Na5 19.Ra5 Qa5–/+) 19.de5+= Nd7 (19...Nd5 20.Bd5 ed5 21.Nd4 Qb3 22.Nb3=) 20.Bd4 (20.Nd6 Qc7+/–) 20...Nc5+= 21.Qb2 Qc6 (21...Bb5 22.Qb5 Qb5 23.Bb5+=) 22.Na7 (better is 22.Nd6!? Bd6 23.ed6+/–) 22...Qc7+= 23.Rb1 (23.Qc2+=) 23...Qa5 (23...Ba4 24.Nb5 Bb5 25.Bb5+=) 24.Nb5 (24.Nc8 Bg5+/–) 24...Bc6 (24...Bb5 25.Qb5 Qb5 26.Rb5+=) 25.Ra1 (25.Nd6 Ra8+=) 25...Qd8 (25...Qb6 26.Ra2+=) 26.Rd1 (26.Nd6 Bd6 27.ed6 Qd6 28.Bg7+/–) 26...Qc8? (26...Qb6!?+=) 27.Nd6+/– Na4?? (better is 27...Bd6 28.ed6 Na4+/–) 28.Nc8+– Nb2 (28...Rc8 29.Qb3 Kf8 30.Qc2+–) 29.Ne7 (29.Bb2?! Rc8 30.Bd3 Ra8=) 29...Kh8 30.Bb2 (30.Bb2 Ba4 31.Rd4+–) 1–0. Kucharkowski,Jens – Jaeckel, Freital, 1982.

9.Nf3 0–0

10.0–0 a5 11.Nc3 +/–.

10.0–0 a6 11.Qb3 a5 12.d4 b6 13.Nbd2 Bc8 14.Rfc1 Bb7 15.Ne5 Nbd7 16.Nc6+/– Bc6 17.bc6 Nb8 18.Bb5 Qc7+/– 19.e4 Na6 20.Ba6 Ra6 21.Qb5 Raa8 22.Ba3 Ba3 23.Ra3 Rfd8 24.Rd3 Rac8 25.d5 ed5 26.ed5 Qd6 27.Nc4 Qc5? 28.Qb6 Qb6?? 29.Nb6+– Rc7 30.d6 Ra7 31.c7 Rf8 32.c8Q 1–0. carocan (1625) – kofr, kurnik, 2011.

10.0–0 a6 11.Ne5 Qc7 12.Nd7 Nfd7 13.Qe2 Bf6 14.Bf6 Nf6 15.ba6 ba6 16.Nc3 a5 17.Rfc1 Rc8 18.Bb5 Nbd7 19.h3 Qe5 20.d4 Qg5 21.Bd3 Nb6 22.Qf3 Nbd5 23.Ne4 Rc1 24.Rc1 Ne4 25.Be4 a4 26.h4 Qd8 27.Qh5 g6 28.Qg4?? a3 29.h5 a2 30.Ra1 Qb6 31.hg6 hg6 32.Bg6 Qb1?? 33.Kh2 Qa1–+ 34.Bh5 Kf8 35.e4 Qd4 36.Qf4 Nf6 37.Bf3–+ a1Q 38.g4 Qe5 39.Qe5 Qe5 (39...Qe5 40.Kg1 Qf4 41.Be2 Ng4 42.Kg2 Qf2 43.Kh3 Ra3 44.Bd3 Nh6 45.e5 Rd3) 0–1. nizinna (1655) – 9mmuroboros (1770), kurnik, 2011.

10.0–0 Qb6 11.Bd4 Qc7 (11...Bc5 12.Bf6 gf6 13.Qb3+/–) 12.Bd3 (12.Qe2 Bc5+–) 12...a6 (12...Bc5!?+–) 13.Nc3 Nd5 (13...Rc8 14.Ne5 Be8 15.f4+–) 14.Nd5 ed5 15.Ne5 Qd6 (15...Bf6 16.f4 Rc8 17.Qf3 Be5 18.fe5+–) 16.ba6 Na6 17.Qb1 Nb4?? (17...Be6+–) 18.Bh7 Kh8 19.Ra8 Ra8 (19...Qe6 20.Rf8 Bf8 21.Nd7 Qd7+–) 20.Nf7 1–0. wiking – LuizFernandes, internet, 2009.

10.0–0 h6 11.Nc3 (11.d3 Nd5+=) 11...Qc8 (11...Qb6 12.Qe2 Rc8 13.Rfc1+=) 12.Qb3 Be8 (12...Qd8 13.d4+/–) 13.Rfc1 (13.Ba3 Ba3 14.Ra3 Nbd7+/–) 13...Nbd7 (13...Qd8 14.Ba3+/–) 14.Ne2 (14.d4 Qc7+/–) 14...Nc5 (14...Nb6 15.d3+=) 15.Qc2 (15.Qa3 Qd7+/–) 15...b6 (15...Nce4 16.d3 Nd6 17.Ba3+/–) 16.d4 (16.Ba3 Qc7+/–) 16...Nb7 17.Qb1 Qd8 18.Qd3 (18.Bd3 Nd6 19.Nc3 Bd7+/–) 18...Nd6 19.Ne5 (19.Ba3 Nc4 20.Be7 Qe7 21.Qc4 Bd7+/–) 19...Nd7?? (better is 19...Nc4 20.Qc4 Bd7+/–) 20.Nc6+– (20.Nc6 Nc4 21.Qc4+– (21.Rc4 Ne5 22.Ne7 Kh8+=)) 1–0. Wall,Bill – Guest697, internet, 2002.

7.Nf3 Bd6

8.c4 h6 9.Nc3 (9.Qb3 dc4 10.Bc4 0–0 11.0–0 Bc8 12.Nc3 Nbd7 13.d4) 9...0–0 10.Qb3 dc4 11.Bc4 Bc8 12.0–0 Nbd7 13.d4.

8.Bd3 0–0 9.0–0 Bc8 10.c4 Nbd7 11.Qc2 g6 (11...dc4 12.Bc4 Nb6 13.Be2) 12.Nc3 Nc5 13.Be2 dc4.

8.Bd3 Bc8 9.0–0 Nbd7 (9...0–0 10.c4 Nbd7 11.Qc2 Re8 12.Nc3 Nb6 13.cd5) 10.Nc3 (10.Nd4 Nc5 11.f4 e5 12.fe5 Be5 13.Nc3) 10...Nc5 11.Ba3 0–0 12.g3 (12.h4 Qc7 13.Qe2) 12...Qc7 13.Qe2 Bd7.

8.Bd3 Bc8 9.Nc3 A) 9...0–0 10.Qe2 Nbd7 11.e4 Bb4 12.e5 (12.0–0 Nc5 13.e5) 12...Nh5 13.0–0 Nf4; B) 9...Nbd7 10.0–0 (10.Ba3 Nc5 11.0–0 0–0 12.Qe2 Qc7 13.h3) 10...0–0 (10...Nc5 11.Ba3 0–0 12.Qe2 Qc7 13.h3) 11.Ba3 Nc5 12.h3 (12.Bc5 Bc5 13.Qb1) 12...Qc7 13.Qe2= (13.Na4 Nce4).

8.Bd4 Qe7 9.c4 (9.Ne5 Bc8 10.Nc3 Nbd7 11.f4 0–0 12.Bd3 Nc5 13.0–0; 9.Ra7 Ra7 10.Ba7 Ne4 11.Nc3 Nc3 12.dc3 0–0 13.Qd4) 9...e5 (9...dc4 10.Bc4 0–0 11.Nc3 e5 12.Ba7 e4 13.Nd4) 10.Ba7 (10.Ra7 Ra7 11.Ba7 0–0 12.Nc3 d4 13.Nd5) 10...dc4 11.Bc4 0–0 12.Nc3 e4 13.Nd4 Na6.

8.Be2 =.

8.c4 0–0

9.Nc3 A) 9...Qb6 10.Na4 Qd8 (10...Qc7 11.c5 Bc5 12.Nc5 Qc5 13.Ba3) 11.c5 (11.Bf6 Qf6 12.Nb6 ab6 13.Ra8) 11...Bc7 12.Nc3 Ba5 13.Qa4 Bc3; B) 9...dc4 10.Bc4 Be8 (10...Qc7 11.Bd3 Rc8 12.0–0 Be8 13.Qa4) 11.d4 a5 (11...Qb6 12.0–0 Nbd7 13.Bd3) 12.Qb3 Nbd7 13.Be6 Nb6; C) 9...Qc7 10.cd5 ed5 11.Qb3 Be6 12.b6 Qe7 13.Nb5 d4.

9.d3 a6 10.Be2 =.

9.d3 Bb4 10.Nbd2 (10.Bc3 Bd6 (10...Be7 11.Nbd2 Qc7 12.Be2 Be8 13.0–0) 11.Nbd2 a6 (11...h6 12.Qb3 a5 13.d4) 12.Be2 dc4 (12...Be8 13.e4) 13.dc4 Be8) 10...b6 (10...dc4 11.dc4 Be8 (11...a6 12.Be2 Be8 13.0–0) 12.Qc2 Nbd7 (12...a6 13.Be2) 13.Be2 a6; 10...Qc7 11.Be5 Qc8 12.Qb3 Qc5 13.d4) 11.Be2 Ng4 (11...dc4 12.dc4 Ne4 (12...Bc8 13.0–0 Bb7) 13.Qc2 f5+/– (13...Nd2 14.Nd2+=)) 12.Qb3 Bd2 (12...Qe7 13.0–0 a5; 12...a5 13.ba6) 13.Nd2 (13.Kd2+–) 13...Qh4 14.g3 Qh3 15.Bf3 (15.cd5?! Rc8 16.Bf3 a5 17.de6 Be6+–) 15...Nh2 16.Kd1 dc4?? (better is 16...a5+–) 17.Qc4 Rc8 18.Qf4 (18.Qd4!? f6 19.Ba8 Qg4 20.Ke1 Qd4 21.Bd4 Ng4+–) 18...Bb5 19.Qe5 Bd3 (19...Qh6 20.Qb5 a6 21.Qb6 Nd7+–) 20.Qg7 1–0. marere – arya, internet, 2011.

9.d3 dc4 10.dc4 a6?? (better is 10...Qe7=) 11.Qd6+– Ne4 (11...Ne8 12.Qg3+–) 12.Qd4 f5 (12...Nf6+–) 13.Qg7 1–0. ATUK – puttegutt, Live Game Caissa's Web, 2005.

9.d3 Be8 10.d4 dc4 11.Bc4 Nbd7 12.Nc3 Rc8 13.Qb3 Nb6.

9.d3 h6 10.Nbd2 a6 11.Qb3 a5 12.Be2 a4 13.Ra4.

9.Bd4 dc4 10.Bc4 a6 =.

6.ab5 Nbd7

7.c4 dc4 8.Bc4 Nb6 9.Be2 Bd7 10.Nf3 Be7 11.0–0 0–0 12.Bf6 Bf6 13.d4 Nd5 14.Qb3 b6 15.Nc3 Nc3 16.Qc3 Qe7 17.Rfc1 Rfc8 18.Qb3 Rc1 19.Rc1 Rc8 20.Rc8 Bc8 21.g3 Bb7 22.Ne1 g6 23.Bf3 Bf3 24.Nf3 Qc7 25.Qa3 Kg7 26.Kg2 h5 27.h4 Be7 28.Qb2 Bf6 29.Nd2 Qd7 30.Ne4 Qd5 31.f3 Be7 32.Nf2 Qc4 33.e4 Bf6 34.e5 Be7 35.Ne4 f5 36.Nd6 Bd6 37.ed6 Qd5 38.d7 Qd7=+ 39.d5 Kh7 40.de6 Qe6 41.Qc2 Qe7 42.Kh3 Kg7 43.g4? fg4–+ 44.fg4 Qe3 45.Kg2 Qe7 46.gh5 gh5–/+ 47.Qc3 Qf6 48.Qc7 Qf7 49.Qe5 Kh7 50.Qg5 Qg6 51.Kf3 Qg5 52.hg5 Kg6 53.Kf4 h4 54.Kg4 h3! 55.Kh3 Kg5 56.Kg3 Kf5 57.Kf3 Ke5 58.Ke3 Kd5 59.Kd3 Kc5 60.Kc3 Kb5 61.Kb3 a5 62.Ka3 Kc4 63.Ka4 b5 64.Ka5 b4 65.Kb6 b3 66.Kc6 b2 67.Kd6 b1Q (67...b1Q 68.Ke6 Kd4 69.Kf6 Qd3 70.Kg5 Ke5 71.Kg4 Qe4 72.Kg3 Qe2 73.Kh3 Qf2 74.Kg4 Qg2 75.Kh5 Kf5 76.Kh4 Qg4) 0–1. ludice (1655) – slabeusz, kurnik, 2011.

7.c4 dc4 8.Bc4 Nb6 9.Be2 Be7 10.Nf3 0–0 11.0–0 a6 12.Bf6 Bf6 13.d4 Nd5 14.Qb3 Qb6 15.Nbd2 Bd7 16.ba6 Qb3 17.Nb3 Nc3 18.Bd3 ba6 19.Ra6 Ra6 20.Ba6 Ra8 21.Nc5 Bc6 22.Rc1?? Ra6!–+ 23.Kf1 Bb5 24.Ke1–/+ Ne2 25.Rb1 Rb6 26.Rb5 Rb5 27.Ke2 Be7 28.Nd3 Kf8 29.Nfe5 f6 30.Nc6 Bd6 31.e4 Rb6 32.d5 ed5 33.ed5 Ra6 34.g3 Ke8 35.Ke3 Kd7 36.f4 Ra8 37.h4 Re8 38.Kd4 Ra8 39.h5 Ra4 40.Ke3 Bf8 41.Nd4 Kd6 42.Nf5?? Kd5–+ 43.g4 Ra3 44.Kd2? g6 45.Ne3 Kd4 46.Nc2–/+ Kc4 47.Na3= Ba3 48.hg6 hg6 49.g5 f5 50.Ne5+/– Kd5 51.Ng6 Ke4+/– 52.Nh4 Bb4 53.Ke2 Ba5 54.g6 Bc3+/– 55.g7 Bg7= 56.Nf5 Bf6 0–1. ludice (1680) – hlinican (1695), kurnik, 2011.

7.c4 dc4 8.Bc4 Be7 9.Nf3 a6 10.0–0 a5 11.Nc3 b6 12.d4 Bb7 13.Be2 0–0 14.Na4 Nd5 15.Rc1 Rc8 16.Qb3 Rc1 17.Rc1 Qb8 18.h3 Rc8 19.Rc8 Qc8 20.Bc4 h6 21.Ne5 Ne5 22.de5 Qc7 23.e4 Nb4 24.f3 Bc5 25.Kh2 Kf8 26.Qd1 Ke7 27.Ba3?? f6 28.f4 fe5 29.f5 ef5–/+ 30.ef5 e4 31.Kh1 e3 32.Qh5?? Bd5?? 33.Be2?? Nc2 34.Bc5 bc5 35.Qg6?? Kf8 36.f6 gf6?? 37.Qf6?? Qf7 38.Qh6+/– Ke7 39.Qc6?? Bc6–+ 40.bc6 (40.bc6 Qf2 41.Bf3–+). nizinna – peterklein, kurnik, 2011.

7.Nf3 b6 8.c4 dc4 (8...a5 9.cd5 (9.Nc3 Bb7 10.cd5 Nd5 11.Bc4 Nb4 12.d4 Bf3 13.gf3+=) 9...Nd5 10.Bc4 Bb7 11.0–0 Bd6 12.Bd5 Bd5 13.Bg7=) 9.Bc4 Bb7 (9...Bd6 10.d4 (10.Ba3 Qc7 11.Qe2 0–0 12.0–0 Bb7 13.Bd6+=; 10.0–0 Bb7 11.d3 0–0 12.Nbd2 Nc5 13.e4+=) 10...Qc7 11.Bd3 0–0 12.Nbd2 Bb7 13.0–0+=) 10.0–0 (10.Qe2 Bd6 11.d3 0–0 12.Nbd2 Qe7 13.e4+=) 10...Qc7 (10...Bd6 11.d3 0–0 12.Nbd2 Qe7 13.e4+=) 11.Qe2 (11.d3 Bd6 12.Nbd2 0–0 13.Qe2+=) 11...Bf3 (11...Bd6 12.Rc1 Qb8 13.h3+=) 12.Qf3 Rc8 13.Bb3 (13.Rc1+/–) 13...Bd6 14.Rc1 Qb8 (better is 14...Qc1!? 15.Bc1 Rc1 16.Bd1 Ne4+=) 15.Rc8+/– Qc8 16.Ra7 0–0 (16...Bh2!? 17.Kf1 Bb8+=) 17.g3 Ne5 (17...Qb8 18.Ra2+/–) 18.Qe2 (18.Be5 Be5 19.Qc6 Bb2+–) 18...Qb8+/– 19.Ra6 Qb7 20.Be5 Be5 21.f4 (21.d4 Bb8+/–) 21...Bd6 22.Nc3 Bc5 (22...Rc8 23.Bc4+/–) 23.Bc2 Ra8 (23...Qc7 24.Ne4 Nd5 25.Qd3+/–) 24.Ra8 (24.Na4!? Ra6 25.ba6 Qc6+–) 24...Qa8+/– 25.Na4 Qd5 (25...Bb4 26.f5+/–) 26.Nc5 (26.d4!? Bb4 27.Nb6 Qb7+–) 26...Qc5+/– 27.Qd3 Qd5 28.Qd5 Nd5 29.Be4 Kf8 30.Bd5 ed5 31.Kf2 Ke7 32.d4 (32.g4 Kd6 33.d4 h5+–) 32...f5 33.Kf3 h5 34.h3 Kf6 35.g4 hg4 36.hg4 fg4? (better is 36...g6+–) 37.Kg4 g6 38.Kg3 Kf5 (38...Ke6 39.Kf3 Kf5 40.e4 de4 41.Ke3 Kf6+–) 39.Kf3 Ke6 40.e4 de4 41.Ke4 Kd6 42.d5 Kc5 43.Ke5 1–0. Kreuzer – Baumann, Bez–Kl Mannheim, 1980.

7.Nf3 Be7 8.Be2 Qc7 9.0–0 0–0 10.d4 Nb6 11.Nbd2 (11.Ba3 Ba3 12.Na3 Ne4+=) 11...Ne4 (11...a6 12.Ba3+=) 12.Ne4+= de4 13.Nd2 f5 14.c4 Bd6 (14...e5 15.de5 Be6 16.Bd4+=) 15.g3 (15.c5 Bh2 16.Kh1 Nd5+/–) 15...Be7 (15...Bb4 16.Ba3 Ba3 17.Ra3+=) 16.c5 Bd7? (better is 16...Nd5+=) 17.cb6+– ab6 (17...Qb6 18.Qb3+–) 18.Qb3 Ra1 19.Ra1 Bf6 20.Rc1 Qb8 21.Nc4 Bd8 (21...Rc8 22.f3+–) 22.Ne5 Bc8 23.Ba3 Re8 24.Nc4 (24.Bh5 g6 25.Be2 Bf6+–) 24...Bc7 25.Qb4 Rd8 (25...e5 26.Nd6 Bd6 27.Qd6 Qd6 28.Bd6 ed4 29.ed4+–) 26.Qe7 Bd7 27.Ne5! Be5 28.de5 Be8 (28...Qa8+–) 29.Qf8 1–0. Scheele,Marcus – Hensel,Olaf, Bochum–ch, 1991.

7.Bf6 Qf6 8.d4 Be7 9.Nf3 0–0 10.Bd3 e5 11.de5 Ne5 12.Ne5 Qe5 13.Nd2 Bf6 14.Ra4 Bd7 15.0–0 a6 16.Nf3 Qh5 17.Rb4 Bg4 18.ba6 ba6 19.Be2 Be7 20.Rb7 Bd6 21.g3 Rab8 22.Rb8 Rb8 23.Nd4 Be2 24.Qe2 Qg6 25.Qa6+/– Rf8 26.Nb5 Bc5 27.Qg6+– hg6 28.Rd1 Rb8 29.Nc7 Bb6 30.Nd5 Bd8 31.c4 Bg5 32.c5 Rc8 33.f4 Bd8 34.Rc1 Kf8 35.c6 Be7 36.c7 Bd6 37.Rc6 Be7 38.Nb6 (38.Nb6 Rc7 39.Rc7+–) 1–0. ludice (1605) – lipefernandes, kurnik, 2011.

6.ab5 Be7

7.c4 dc4 8.Bc4 0–0 9.Nc3 Bd7 10.Nf3 Bc5 11.0–0 b6 12.Be2 Qc7 13.Ne4?? Ne4–+ 14.Rc1 Qb7 15.Ne5 Be8 16.Bf3–/+ f5 17.d3 Qd5 18.de4 fe4 19.Bg4 Bb5 20.Qd5 ed5 21.Rfd1 Bc4?? 22.Nd7?? Nd7 23.Bd7? Rad8 24.Bc6 h6 25.h3 a5 26.Be5 Rf5 27.Bf4 Rdf8 28.Bd5?? Bd5 29.Bg3 Bb3 30.Rd7 Rd5 31.Ra7 Rfd8 32.Bc7 R8d7 33.Bb8 Ra7 34.Ba7 Rd7 35.Bb8 Rd1 36.Rd1 Bd1 37.Kf1 Bc2 38.Ke1 Bd3 39.Kd2 Kf7 40.Kc3 Ke6 41.Bf4 Kd5 42.f3 a4 43.fe4 Be4 44.Bg3 b5 45.Be1 b4 46.Kb2 Bd3 47.Bd2 Kc4 48.h4 a3 49.Ka2 Bc2 50.g3 Bd6 51.g4 Bb3 52.Kb1 a2 53.Kb2 Be5 54.Kc1 a1Q 0–1. elsh1403 – haruth, kurnik, 2011.

7.c4 dc4 8.Bc4 Bd7 9.Nc3 0–0 10.Nf3 b6 11.0–0 Qc7 12.Qb3 Bc5 13.d4 Be7 14.Rfc1 Qd8 15.Ne5 Bd6? 16.f4 Qe7? 17.Bd3 Be5?? 18.fe5+– Ng4 19.Be4 Qh4 20.h3 Qf2 21.Kh1 Ne3 22.Ba8 Bc6 23.Bc6+– Nc6 24.Rg1 Nd4 25.Ne4 Nb3 26.Nf2 Na1 27.Ra1 Ra8 28.Ne4 Nc4 29.Ba3 Ne5+= 30.Bd6 Nc4 31.Bg3 f5 32.Nd6 Nd2? 33.Kg1 Nb3 34.Ra3 Nd4? 35.Rd3?? Nc2 36.Nb7 Na3?? 37.Rd8 Rd8= 38.Nd8 Nb5 39.Nc6 a5 40.Bc7?? a4 41.Bb6 a3 42.Bc5?? a2 43.Ne7 Kf7 0–1. elsh1403 (1725) – haruth (1625), kurnik, 2011.

7.Nf3 0–0 8.c4 dc4 9.Bc4 b6 10.Qe2 Bb7 11.0–0 Nbd7 12.d4 Bd5 13.Rc1 Rc8 (13...Ne4!?+=) 14.Ra7+/– Bc4 15.Rc4 Rc4 16.Qc4 Ne4 17.Qc6 Ndf6 18.Ne5 Nd5 (18...Bd6 19.Ba3+–) 19.Nd7 Nb4?? (better is 19...Re8+–) 20.Qe4 1–0. forsetinn (1860) – yoga_sadhaka (1620), gameknot.com, 2013.

7.Nf3 0–0 8.Bd4 A) 8...a6 9.Be2 (9.Nc3 Nbd7 10.ba6 ba6 11.Ra2 Bd6 12.Nb5+=; 9.Ne5 Nfd7 10.Nd3 Bf6 11.Bf6 Nf6 12.Be2=) 9...Bd6 10.Be5 Be5 11.Ne5 Qc7 12.f4=; B) 8...a5 9.ba6 ba6 10.Ne5 Bd6 11.Qf3 Qc7 12.Nc4–/+.

7.Nf3 0–0 8.Be2 a5 9.Ba3 (9.0–0 Nbd7 10.d4 Nb6 11.Ba3 a4 12.Bd3=; 9.Ra2 Nbd7 10.0–0 Qc7 11.d4 Nb6 12.Ba3=) 9...Ba3 10.Ra3 Bd7 11.d4 Qb6 12.Qd3 =.

7.Nf3 a5 A) 8.ba6 ba6 9.Bb5 Bd7 10.Be2 0–0 11.0–0 a5 12.Na3=; B) 8.Ba3 Nbd7 (8...0–0 9.d4 Nbd7 10.Bd3 Re8 11.0–0 Ba3 12.Ra3+=; 8...b6 9.d4 Ba3 10.Na3 Qc7 11.c4 Nbd7 12.Be2+=; 8...Ne4 9.d4 Nd6 10.Bd3 Bd7 11.Ne5 Qc7 12.Qh5+=) 9.d4 a4 10.Bd3 0–0 11.0–0 Nb6 12.Ne5=; C) 8.d4 C1) 8...0–0 9.Bd3 (9.Ba3 Nbd7 10.Bd3 Ba3 11.Na3 Qe7 12.0–0=) 9...a4 10.0–0 Nbd7 11.Ba3 Nb6 12.Ne5+=; C2) 8...Bb4 9.c3 Bd6 10.Ba3 0–0 11.Bd3 Qc7 12.Bd6+=; C3) 8...b6 9.Bd3 (9.Ba3 Ba3 10.Ra3 0–0 11.Bd3 Nbd7 12.0–0=) 9...Bb4 10.c3 Bd6 11.Ba3 0–0 12.0–0+=; C4) 8...Nbd7 9.Ba3 (9.Bd3 0–0 10.Ba3 a4 11.Be7 Qe7 12.c3=) 9...Ba3 10.Ra3 Qc7 11.Bd3 e5 12.de5=; D) 8.Be2 D1) 8...Nbd7 9.0–0 (9.d4 Qc7 10.0–0 0–0 11.Ba3 Re8 12.Be7=; 9.Ba3 e5 10.0–0 0–0 11.Be7 Qe7 12.Nc3=) 9...Qc7 10.d4 Ne4 11.Ba3 Ba3 12.Ra3+=; D2) 8...0–0 9.Ba3 (9.0–0 Nbd7 10.d4 Re8 11.Nbd2 b6 12.Bd3=) 9...Ba3 10.Na3 Qd6 11.0–0 e5 12.d4=.

7.Nf3 Qc7 8.d3 (8.Be5 Bd6 9.Bd6 Qd6 10.d4 Nbd7 11.Nbd2 0–0 12.Bd3=) 8...Nbd7 (8...0–0 9.Be5 Qb6 10.c4 Nbd7 11.Bd4 Qc7 12.Qb3=) 9.Nbd2 (9.Be2 e5 10.0–0 0–0 11.Ba3 Ba3 12.Na3=; 9.d4 a6 10.Bd3 0–0 11.0–0 Nb6 12.ba6=) 9...0–0 10.Be2 (10.d4 Re8 11.Bd3 Nb6 12.Ba3=) 10...Qb8 (10...e5 11.Rc1 a5 12.c4=) 11.0–0 (11.d4 a6 12.0–0+=) 11...a6 12.ba6 (12.d4=) 12...ba6 13.Bf6 Bf6 14.d4 Bb7 15.Qb1 Qc7 16.Rc1 a5 17.c4 Ba6? (better is 17...Rfb8=) 18.cd5+– Qd6? (better is 18...Qb8 19.Ba6 Ra6 20.de6 fe6+–) 19.Rc6 Rfb8 (19...Qd5 20.Ra6 Ra6 21.Ba6+–) 20.Qc1 (20.Rd6 Rb1 21.Rb1 Be2 22.Rd7 h6+–) 20...Rc8 (20...Qd5 21.Ra6 Ra6 22.Ba6+–) 21.Ba6 (better is 21.Rd6!? Rc1 22.Rc1 Be2 23.Rd7 h5+–) 21...Rc6 22.Qc6 (22.dc6 Bd8 23.Bb7 Ra7+–) 22...Ra6 (22...Qd5 23.Bb5 Nf8+–) 23.Qd6 (better is 23.Qc8 Bd8 24.Qd8 Nf8 25.Qd6 Rd6 26.de6 fe6 27.Ra5+–) 23...Rd6 24.de6 Re6 25.Ra5 Rb6 26.Ra8 Nf8 27.Ra1 g6 28.Ne4 Bg7 29.Kf1 h6 30.Nc5 Rc6 31.Ra7 Nh7 32.Ra8 Nf8 33.Nd7 Rc7 34.Nf8 Bf8 35.Ne5 Kg7 36.Rd8 Be7 37.Rd7 Rd7 38.Nd7 f5 39.h3 Kf7 40.f3 Bh4 41.Ne5 Kf6 42.g4 g5 (42...Bg3 43.f4+–) 43.gf5 Kf5 44.Nd3 Bg3 45.e4 Ke6 46.d5 Kf6 47.Ke2 Bd6 (47...Bb8 48.Kd2+–) 48.Ke3 Bc7 49.Kd4 Bb6 50.Kc4 Bc7 51.Kc5 Ke7 52.Kc6 Bb8 (52...Bd8+–) 53.e5 Ke8 54.d6 h5 55.e6 Ba7 56.Nb4 Bd4 57.Nd5 Be5 58.d7 1–0. Schutz – Nottenkamper, 1986.

7.Nf3 Bd7 8.c4 dc4 9.Bc4 0–0 10.0–0 Ne4 11.d3 Nd6 12.Bb3 (better is 12.Nc3!?+=) 12...Bb5 13.Ne5 Ne4?? (13...Nc6 14.Na3+=) 14.Qg4 (better is 14.de4 Bf1 15.Qf1+/–) 14...Nf6+= 15.Qg3 Bd6 (worse is 15...Bd3 16.Rd1 Ne4 17.Qg4+– (worse is 17.Rd3 Ng3 18.Rd8 Rd8 19.hg3 Bf6+=)) 16.d4?? (better is 16.f4=) 16...Bf1–+ 17.Kf1 Qb6 18.Nd2 Nc6 (better is 18...Qb4 19.Rd1 Ne4 20.Ne4 Qb3–+) 19.Ndf3?? (better is 19.Bc3–+) 19...Qb3 20.Bc1 (20.Ba3 Qc3 21.Rd1 Qa3–+) 20...Qc3 (20...Be5 21.de5 Ne4 22.Bd2 Ng3 23.hg3–+) 21.Rb1 (21.Bb2 Qb2 22.Re1 Qb5 23.Kg1 a5–+) 21...Ne5 22.de5 Be5! 23.Ne5 (23.Qe5 Qd3 Theme: Double Attack) 23...Rac8 (better is 23...Qc2 24.f4 Rfd8–+) 24.e4 Qf3 (better is 24...Qc2 25.Qd3 Qd3 26.Nd3 Rfd8–+) 25.Nf3 (25.Nf3 Ne4 26.Qe5+–; better is 25.Qf3!? Rc5 26.Ba3 b6 27.Bc5 bc5+–) 1–0. Scirocco – 0905978500113, Live Game Caissa's Web, 2004.

5.e3 b6

6.a5 ba5 A) 7.Bc3 Bb4 8.Nf3 Bd7 9.bc6 Nc6 10.Bb5+=; B) 7.Nf3 Bd7 (7...Bd6 8.Ne5 Bb7 9.bc6 Nc6 10.Bb5=; 7...a6 8.bc6 Nc6 9.Ne5 Bb7 10.Nc6+=) 8.Nc3 c5 9.Ne5 a6 10.Nd7+=.

6.a5 a6 A) 7.bc6 b5 8.c7 Qc7 9.Bd4 e5 10.Bb6–/+; B) 7.ab6 Nfd7 (7...Qb6 8.Bf6 gf6 9.Nc3 Rg8 10.Nf3=; 7...Bd6 8.Bf6 gf6 9.Qg4 Bb7 10.Qg7=) 8.ba6 Qb6 9.Bd4 c5 10.Bc3+=.

6.Be5 a6 A) 7.Nc3 Nfd7 (7...Nbd7 8.Nf3 Bb7 9.bc6 Bc6 10.Bf4=; 7...Bd6 8.Nf3 0–0 9.Bd3 Be5 10.Ne5=; 7...Bb4 8.Rb1 Ba5 9.Nf3 Nbd7 10.Bf6+=; 7...Bb7 8.Nf3 Nbd7 9.Bf4 Bb4 10.Ne2=; 7...ab5 8.ab5 Ra1 9.Qa1 Bd6 10.Bf6=; 7...Be7 8.Nf3 Bd6 9.Bd3 0–0 10.0–0=; 7...Bc5 8.Nf3 Bb7 9.Be2 Nbd7 10.0–0=; 7...Bd7 8.Nf3 Bb4 9.Rb1 Qe7 10.Bd3=) 8.Bg3 Bb4 9.Nf3 Bc3 10.dc3+=; B) 7.Bb8 Rb8 8.Nf3 Qc7 9.Be2 Bd6 10.d4+=; C) 7.Be2 Nbd7 (7...Nfd7 8.Bb2 Bd6 9.Nf3 0–0 10.Nc3+=; 7...Bd6 8.Bd6 Qd6 9.bc6 e5 10.Nf3+=) 8.Nf3 Ne5 9.Ne5 Ne4 10.Bh5–/+; D) 7.d4 Bb7 (7...Bb4 8.c3 Bd6 9.Bd6 Qd6 10.Nd2=; 7...Ne4 8.f3 Nd6 9.Nd2 Nf5 10.Kf2+=; 7...Nfd7 8.Bb8 Nb8 9.Nd2 Bb4 10.Rb1+=) 8.Nd2 Nbd7 9.Bd3 Ne5 10.de5+=; E) 7.f4 Bd7 (7...Nfd7 8.Bc3 Qh4 9.g3 Qh6 10.Nf3+=; 7...Be7 8.Nf3 Bb7 9.Be2 Nbd7 10.bc6=; 7...Bc5 8.Bb8 Rb8 9.Nf3 Qc7 10.Ne5+=; 7...Bb4 8.Nf3 Bb7 9.Be2 0–0 10.0–0=; 7...Bb7 8.Nf3 Be7 9.Be2 Nbd7 10.bc6=; 7...ab5 8.ab5 Ra1 9.Ba1 Bd6 10.bc6=; 7...Bd6 8.Nf3 Be5 9.fe5 Nfd7 10.bc6=; 7...Ne4 8.Nf3 Bb7 9.Be2 f6 10.Bd4=) 8.Nc3 Be7 9.Nf3 0–0 10.Bd3+=; F) 7.c4 Bd6 (7...dc4 8.Bc4 Nbd7 9.Bc3 Bb7 10.Nf3+=; 7...Nbd7 8.Nf3 Ne5 9.Ne5 cb5 10.ab5+=; 7...Bb7 8.Nf3 Nbd7 9.cd5 ab5 10.de6=; 7...ab5 8.ab5 Ra1 9.Ba1 dc4 10.Bc4=; 7...Nfd7 8.Bc3 Nc5 9.Nf3 Ne4 10.cd5=; 7...Ne4 8.cd5 Nd7 9.Bb2 cd5 10.Nf3=; 7...cb5 8.ab5 Nbd7 9.Bb2 a5 10.Nf3=; 7...c5 8.cd5 ed5 9.ba6 Ba6 10.Bf6=) 8.Nf3 dc4 9.bc6 Nc6 10.Bd6+=; G) 7.Nf3 Nfd7 (7...Bb7 8.Nc3 Nbd7 9.Bf4 Bb4 10.Ne2=; 7...ab5 8.ab5 Ra1 9.Ba1 Bd6 10.bc6=; 7...Bd6 8.Nc3 0–0 9.Bd3 Be5 10.Ne5=; 7...c5 8.ba6 Ba6 9.Ba6 Na6 10.0–0=; 7...Ne4 8.Be2 Bd6 9.Bd6 Qd6 10.bc6=; 7...Bd7 8.Nc3 Bb4 9.Rb1 Qe7 10.Bd3=; 7...Nbd7 8.bc6 Ne5 9.Ne5 Bd6 10.d4=) 8.Bb2 Qc7 9.Be2 e5 10.c4=.

6.Be5 Bb7 A) 7.Be2 a6 (7...Nfd7 8.Bb2 Bd6 9.Nf3 0–0 10.Nc3=; 7...Nbd7 8.bc6 Bc6 9.Nf3 Be7 10.0–0=; 7...Bd6 8.Bd6 Qd6 9.Nf3 0–0 10.0–0+=; 7...Be7 8.Nf3 Nbd7 9.Bf4 0–0 10.bc6=; 7...Ne4 8.Nf3 f6 9.Bb2 a6 10.0–0=; 7...c5 8.Nf3 Be7 9.0–0 0–0 10.Na3=; 7...Bb4 8.Nf3 Nbd7 9.0–0 0–0 10.Bf4=; 7...Bc5 8.Nf3 0–0 9.0–0 a6 10.d4=) 8.Nf3 Nfd7 9.Bb2 Bd6 10.bc6+=; B) 7.a5 ba5 8.Nf3 a6 9.Bb8 Qb8 10.bc6+=; C) 7.Nc3 Nbd7 (7...a6 8.Nf3 Nbd7 9.Bf4 Bb4 10.Ne2=; 7...Nfd7 8.Bg3 a6 9.Nf3 Bb4 10.Na2=; 7...Be7 8.Nf3 0–0 9.Be2 c5 10.a5+=; 7...Bd6 8.Bd6 Qd6 9.Nf3 a6 10.Be2=; 7...Bb4 8.Nf3 0–0 9.Rb1 c5 10.Na2=; 7...c5 8.Nf3 Nbd7 9.Bf4 Be7 10.Be2+=) 8.bc6 Bc6 9.Nf3 Ne4 10.Nb5+=; D) 7.d4 a6 (7...Ne4 8.f3 Nd6 9.Bd3 a6 10.Nc3=; 7...Nbd7 8.Nf3 Ne5 9.Ne5 c5 10.Bd3+=; 7...Bb4 8.c3 Be7 9.Bd3 a6 10.Nd2=; 7...Nfd7 8.Bf4 a6 9.Nd2 Bb4 10.Bd3=; 7...Bd6 8.Nf3 a6 9.Nbd2 c5 10.a5=; 7...Be7 8.Bd3 a6 9.Nd2 Nbd7 10.Ngf3=; 7...c5 8.Nf3 Nbd7 9.Bf4 Be7 10.dc5+=; 7...a5 8.Bd3 cb5 9.Bb5 Bc6 10.Bd3=) 8.Nd2 Nbd7 9.Bd3 Ne5 10.de5+=; E) 7.Bd3 Nbd7 (7...a6 8.Nf3 Nbd7 9.bc6 Bc6 10.0–0+=; 7...Nfd7 8.Bb2 e5 9.Nh3 Bd6 10.0–0+=; 7...Bd6 8.Nf3 a6 9.Nc3 Be5 10.Ne5=; 7...Be7 8.Nf3 Nbd7 9.Bf4 a6 10.bc6=; 7...cb5 8.ab5 Nbd7 9.Bb2 Nc5 10.Be2=; 7...c5 8.Nf3 Nbd7 9.Bf4 c4 10.Be2+=; 7...Bb4 8.Nf3 Nbd7 9.0–0 0–0 10.Bf4=) 8.Nf3 Ne5 9.Ne5 c5 10.0–0+=; F) 7.Ra2 a6 (7...Nbd7 8.bc6 Bc6 9.Nf3 Ne5 10.Ne5+=; 7...Nfd7 8.Bg3 a6 9.Rb2 Be7 10.Nf3+=; 7...Be7 8.Nf3 0–0 9.Be2 a6 10.Nc3+=; 7...Bd6 8.Bd6 Qd6 9.a5 ba5 10.d4+=; 7...Bb4 8.c3 Be7 9.Nf3 0–0 10.Be2+=; 7...Ne4 8.Nf3 a6 9.d3 Nf6 10.ba6=; 7...c5 8.Nf3 Nbd7 9.Bf4 Be7 10.Be2+=) 8.Nc3 Nfd7 9.Bg3 Bb4 10.Nge2+=; G) 7.Nf3 a6 (7...Be7 8.Be2 Nbd7 9.bc6 Bc6 10.0–0=; 7...Nfd7 8.Bc3 a6 9.ba6 Ba6 10.d3=; 7...Bb4 8.c3 Be7 9.d4 a6 10.Nbd2=; 7...Nbd7 8.Bf4 Be7 9.bc6 Bc6 10.Ba6=; 7...Bd6 8.d4 a6 9.Nbd2 0–0 10.Bd3=; 7...Ng4 8.Bf4 Bd6 9.Bd6 Qd6 10.d4=; 7...Ne4 8.Bd3 a6 9.0–0 f6 10.Bb8=; 7...c5 8.Be2 Nbd7 9.Bc3 a5 10.ba6=) 8.Nc3 Nbd7 9.Be2 Ne5 10.Ne5+=.

6.Be5 Bd6 A) 7.Bd6 Qd6 8.a5 ba5 9.Nc3 e5 10.d4+=; B) 7.Nf3 0–0 (7...a6 8.Nc3 0–0 9.Bd3 Be5 10.Ne5=; 7...Be5 8.Ne5 a6 9.bc6 Qc7 10.d4=; 7...c5 8.Bd6 Qd6 9.Be2 a6 10.0–0=; 7...Qc7 8.Bd6 Qd6 9.d4 0–0 10.Nbd2=; 7...Bb7 8.d4 a6 9.Nbd2 c5 10.a5=; 7...Bc7 8.d4 0–0 9.Bd3 a6 10.Nbd2=) 8.d4 Ne4 9.Nbd2 Bb4 10.c4+=; C) 7.f4 Ne4 (7...0–0 8.Nf3 a6 9.Be2 Be5 10.fe5+=; 7...a6 8.Nf3 Be5 9.fe5 Nfd7 10.bc6=; 7...Be5 8.fe5 Nfd7 9.Nf3 a6 10.bc6=; 7...Bb7 8.Nf3 0–0 9.Be2 a6 10.0–0=; 7...Be7 8.Nf3 c5 9.Be2 Nbd7 10.0–0=; 7...Bb4 8.Nf3 Bb7 9.Nd4 c5 10.c3=; 7...c5 8.Nf3 0–0 9.Be2 a6 10.0–0=; 7...Bc5 8.Nf3 Bb7 9.Be2 0–0 10.0–0=) 8.Bg7 Rg8 9.d3 Qh4 10.g3+=; D) 7.d4 Be5 (7...0–0 8.Nf3 Ne4 9.Bd3 a6 10.bc6=; 7...a6 8.Bd6 Qd6 9.Nd2 0–0 10.Ngf3=; 7...Bb7 8.Nf3 0–0 9.Bd3 a6 10.Nbd2=; 7...c5 8.Nf3 a6 9.Be2 c4 10.ba6=; 7...Qe7 8.Bd6 Qd6 9.Nd2 a6 10.Ngf3=; 7...h6 8.Bd3 Be5 9.de5 Nfd7 10.Qg4=; 7...Bc7 8.Nf3 0–0 9.Bd3 a6 10.Nbd2=; 7...Bb4 8.c3 Bd6 9.a5 Be5 10.de5=) 8.de5 Nfd7 9.Nf3 Qc7 10.Qd4+=.

6.Be5 Nbd7 A) 7.Bg3 c5 (7...Bb7 8.bc6 Bc6 9.Bb5 Bb7 10.Nf3+=; 7...cb5 8.ab5 Ne4 9.Nf3 Qf6 10.Ra4=; 7...Nb8 8.Nf3 Ne4 9.Be5 a6 10.Be2=) 8.Nf3 Ne4 9.Nc3 Ng3 10.hg3+=; B) 7.Bc3 c5 (7...Bb7 8.Nf3 Bd6 9.a5 ba5 10.bc6+=; 7...a6 8.Nf3 c5 9.ba6 Ba6 10.Ba6=; 7...cb5 8.ab5 Bd6 9.Nf3 e5 10.Be2=; 7...Ne4 8.bc6 Nb8 9.Bb5 Qc7 10.a5=; 7...Be7 8.bc6 Nb8 9.Bb5 0–0 10.Qf3=; 7...Qc7 8.Nf3 cb5 9.ab5 Bd6 10.Bb2=; 7...Nb8 8.a5 Bd6 9.Nf3 ba5 10.Ba5=) 8.a5 Bd6 9.Nf3 0–0 10.Be2+=; C) 7.Bb2 c5 (7...Bb7 8.Nf3 Bd6 9.a5 ba5 10.bc6+=; 7...cb5 8.ab5 e5 9.Be2 Qc7 10.Nf3=; 7...a6 8.Nf3 c5 9.ba6 Ba6 10.Ba6=; 7...Qc7 8.bc6 Qc6 9.Bf6 gf6 10.Nf3=) 8.Nf3 Bd6 9.Be2 0–0 10.0–0+=; D) 7.Nf3 Ne5 (7...c5 8.Bf4 Ne4 9.d3 Qf6 10.Ra2=; 7...Ne4 8.Bb2 Bb7 9.Nc3 c5 10.a5=; 7...Bb7 8.bc6 Bc6 9.Bb5 Ne5 10.Ne5=; 7...cb5 8.Bb5 Bb7 9.a5 ba5 10.0–0=; 7...Be7 8.bc6 Ne5 9.Ne5 Bd6 10.f4=; 7...a6 8.bc6 Ne5 9.Ne5 Bd6 10.d4=) 8.Ne5 c5 9.f4 Qc7 10.Be2+=; E) 7.Bf6 Nf6 (7...Qf6 8.Nc3 Bb7 9.a5 ba5 10.bc6+=) 8.bc6 Qc7 9.a5 ba5 10.Nf3+=; F) 7.Bd4 c5 8.Bc3 Bd6 9.Nf3 0–0 10.Be2–/+; G) 7.Bf4 e5 (7...c5 8.Nf3 Ne4 9.d3 Qf6 10.Ra2=; 7...Bb7 8.Nf3 Bb4 9.Be2 0–0 10.0–0=; 7...cb5 8.Bb5 Bb7 9.Nf3 a6 10.Be2=; 7...Nb8 8.Nf3 Bd6 9.Bd6 Qd6 10.d4=) 8.bc6 ef4 9.cd7 Bd7 10.Bb5+=.

6.Be5 Nfd7 A) 7.Bc3 h6 (7...a6 8.Nf3 Qc7 9.ba6 Ba6 10.d3+=; 7...Qc7 8.a5 a6 9.ba6 Ba6 10.ab6=; 7...Qe7 8.Nf3 a6 9.Be2 e5 10.0–0=; 7...Nc5 8.a5 cb5 9.Bb5 Bd7 10.Be2=; 7...Bb7 8.Nf3 a6 9.ba6 Ba6 10.d3=; 7...f6 8.Bd3 g6 9.Nf3 e5 10.Be2=; 7...c5 8.a5 a6 9.ab6 Nb6 10.Nf3=; 7...e5 8.f4 e4 9.bc6 Nc6 10.Qh5=) 8.Nf3 a6 9.Bd3 Bd6 10.Nd4+=; B) 7.Bg3 a6 (7...Qf6 8.d4 a6 9.Nd2 Bb4 10.Bd3=; 7...Be7 8.Nf3 a6 9.Nc3 Bf6 10.d4=; 7...Bb4 8.Qg4 Be7 9.a5 0–0 10.ab6+=; 7...Bb7 8.a5 cb5 9.Bb5 a6 10.Bd7+=; 7...e5 8.Nc3 Bb7 9.Nf3 Bd6 10.bc6=; 7...Bc5 8.d4 Be7 9.Nf3 0–0 10.Bd3=; 7...c5 8.Nf3 Be7 9.Nc3 0–0 10.Be2=; 7...h6 8.Nc3 a6 9.Nf3 Bb4 10.Be2=) 8.Nc3 Bb4 9.Nf3 Bc3 10.dc3+=; C) 7.Nf3 Ne5 (7...a6 8.Bb2 Qc7 9.c4 dc4 10.bc6+=; 7...cb5 8.Bb8 Nb8 9.Bb5 Bd7 10.Bd7=; 7...Bb7 8.Bc3 a6 9.Bd3 Nc5 10.Be2+=; 7...Qe7 8.Bg3 a6 9.Nc3 Qf6 10.Rb1=; 7...c5 8.Bb2 f6 9.c4 Bb7 10.Nc3=) 8.Ne5 Qc7 9.Nc6 Nc6 10.bc6+=; D) 7.Bb2 Qc7 (7...a6 8.Nf3 Qc7 9.c4 dc4 10.bc6+=; 7...e5 8.c4 Bd6 9.bc6 Nc6 10.cd5=; 7...Bb7 8.Nf3 a6 9.Bd3 Nc5 10.Be2=; 7...Nc5 8.Nf3 a6 9.Ne5 Qc7 10.f4=; 7...f6 8.Nf3 Bc5 9.d4 Bb4 10.c3=; 7...c5 8.Nf3 Nf6 9.a5 Nbd7 10.Bc3=; 7...h6 8.Nf3 a6 9.Be2 Bd6 10.Nc3=; 7...Qe7 8.Nc3 a6 9.Nf3 Qd6 10.Be2=) 8.Nf3 a6 9.c4 dc4 10.bc6+=.

6.Nf3 a6 A) 7.Be2 Bb4 (7...Bc5 8.0–0 0–0 9.Be5 Nfd7 10.Bb2=; 7...Bd7 8.Be5 ab5 9.ab5 Ra1 10.Ba1=; 7...Be7 8.0–0 0–0 9.Ne5 Qd6 10.f4=; 7...Bd6 8.0–0 0–0 9.Ne5 Bb7 10.f4=; 7...Bb7 8.0–0 Bd6 9.Ne5 0–0 10.f4=; 7...Qc7 8.Bd4 Nfd7 9.Bb2 Bd6 10.Ba3+=; 7...c5 8.Nc3 Be7 9.0–0 0–0 10.ba6=; 7...ab5 8.ab5 Ra1 9.Ba1 Bd6 10.0–0=) 8.0–0 0–0 9.Bd4 Bd6 10.Nc3+=; B) 7.Bd3 Bd6 (7...Be7 8.0–0 0–0 9.Ne5 Bb7 10.Nc3=; 7...Bb7 8.Nc3 Bd6 9.e4 de4 10.Ne4=; 7...Bd7 8.Nc3 ab5 9.ab5 Ra1 10.Qa1=; 7...Bb4 8.0–0 0–0 9.Ne5 Bb7 10.Qf3=; 7...Bc5 8.Ne5 Qc7 9.Qf3 cb5 10.ab5=; 7...c5 8.Nc3 Be7 9.0–0 0–0 10.Be2=; 7...Qc7 8.0–0 Bd6 9.Bf6 gf6 10.Nc3=; 7...ab5 8.ab5 Ra1 9.Ba1 Bd6 10.Be5=) 8.0–0 0–0 9.Ne5 Bb7 10.f4=; C) 7.Be5 Nfd7 (7...Bb7 8.Nc3 Nbd7 9.bc6 Bc6 10.Bf4=; 7...ab5 8.ab5 Ra1 9.Ba1 Bd6 10.bc6=; 7...Bd6 8.Nc3 0–0 9.Bd3 Be5 10.Ne5=; 7...c5 8.ba6 Ba6 9.Ba6 Na6 10.Nc3=; 7...Ne4 8.Be2 Bd6 9.Bd6 Qd6 10.bc6=; 7...Bd7 8.Nc3 Bb4 9.Rb1 Qe7 10.Bd3=; 7...Nbd7 8.bc6 Ne5 9.Ne5 Bd6 10.d4=) 8.Bb2 Qc7 9.c4 dc4 10.bc6+=; D) 7.h3 Bd6 (7...Bb7 8.Be2 Bd6 9.0–0 0–0 10.bc6+=; 7...Bd7 8.Be2 Bd6 9.0–0 0–0 10.Ne5=; 7...Be7 8.Be2 0–0 9.0–0 Bb7 10.Be5+=; 7...Bb4 8.Be2 0–0 9.0–0 Bd6 10.Ne5=; 7...Bc5 8.Ne5 Bb7 9.Bd3 Bd6 10.0–0=; 7...ab5 8.ab5 Ra1 9.Ba1 Bd6 10.Be5=; 7...c5 8.Na3 Be7 9.Be2 c4 10.0–0=; 7...Qc7 8.Be2 Bd6 9.Bf6 gf6 10.Nc3=) 8.Be2 0–0 9.0–0 Bb7 10.Ba3+=; E) 7.Bc3 Bb7 (7...Bd6 8.Be2 0–0 9.0–0 Ne4 10.Bb2+=; 7...Be7 8.Be2 0–0 9.0–0 Bd6 10.bc6+=; 7...Bc5 8.Be2 0–0 9.0–0 Bd6 10.bc6+=; 7...Bd7 8.Be2 Ne4 9.Be5 f6 10.Bb8=; 7...c5 8.a5 Be7 9.Be2 0–0 10.ab6+=; 7...Ne4 8.Be5 Nd7 9.Bb2 Bb7 10.Nc3=; 7...Qc7 8.Be2 Bd6 9.Bf6 gf6 10.Nc3+=; 7...Ra7 8.Bd3 Bd6 9.Ne5 Bb7 10.0–0=) 8.Be2 Bd6 9.0–0 0–0 10.Nd4+=; F) 7.Nc3 Bd6 8.Be2 0–0 9.0–0 e5 10.Nb1+=; G) 7.Ne5 Bb7 (7...Qc7 8.Be2 Bd6 9.f4 Nfd7 10.Nc6=; 7...c5 8.Na3 Bd6 9.ba6 Ba6 10.Bb5=; 7...Bd7 8.Qf3 Be7 9.Be2 0–0 10.0–0=; 7...Be7 8.bc6 Qd6 9.Ng4 Nc6 10.Nf6=; 7...Bd6 8.Nc6 Nc6 9.bc6 e5 10.c4=; 7...Qd6 8.Qf3 ab5 9.ab5 Ra1 10.Ba1=; 7...cb5 8.ab5 a5 9.Be2 Nbd7 10.f4=) 8.Be2 Bb4 9.0–0 0–0 10.f4=.

6.Nf3 Bb4 A) 7.Bd3 0–0 (7...a6 8.0–0 0–0 9.Ne5 Bb7 10.Qf3=; 7...Bb7 8.Bc3 Bd6 9.0–0 0–0 10.Be5=; 7...Bd6 8.0–0 a6 9.Ne5 Bb7 10.f4=; 7...Bd7 8.Ne5 a6 9.Qf3 Bd6 10.Nd7=; 7...a5 8.Ne5 Bb7 9.Qf3 0–0 10.0–0=; 7...c5 8.0–0 0–0 9.Ne5 c4 10.Be2=; 7...Qe7 8.Be5 0–0 9.Bb8 Rb8 10.Ne5=; 7...Be7 8.Ne5 Qc7 9.Ng4 Qd8 10.0–0=) 8.0–0 a6 9.Ne5 Bb7 10.Qf3=; B) 7.Be2 0–0 (7...a6 8.0–0 0–0 9.Ne5 Bb7 10.f4=; 7...Bd6 8.0–0 0–0 9.Be5 a6 10.Bd6=; 7...Bb7 8.Ba3 Ba3 9.Ra3 a6 10.0–0=; 7...Bd7 8.0–0 0–0 9.Ne5 Qc7 10.f4=; 7...cb5 8.ab5 0–0 9.0–0 Bd6 10.Ba3=; 7...Qe7 8.Be5 0–0 9.0–0 Nfd7 10.Bb2=) 8.0–0 a6 9.Bd4 Bd6 10.Nc3+=; C) 7.Be5 Bb7 (7...0–0 8.Bb8 Rb8 9.Ne5 Bb7 10.bc6=; 7...Bd7 8.Bd3 a6 9.0–0 0–0 10.Nc3=; 7...Nbd7 8.c3 Ne5 9.Ne5 Bd6 10.Nc6+=; 7...Bd6 8.a5 ba5 9.bc6 Be5 10.Ne5=; 7...a6 8.Bb8 Rb8 9.Ne5 Bb7 10.Nc6=; 7...Be7 8.Bb8 Rb8 9.Nd4 Bd7 10.bc6+=; 7...cb5 8.c3 Be7 9.ab5 Nbd7 10.d4=; 7...h6 8.Bb8 Rb8 9.Nd4 Bb7 10.bc6+=) 8.c3 Be7 9.d4 a6 10.Nbd2=; D) 7.Nc3 0–0 (7...a6 8.Be2 Bd6 9.0–0 0–0 10.Nb1=; 7...Bd6 8.a5 ba5 9.bc6 Nc6 10.Bb5=; 7...Bb7 8.Be2 0–0 9.0–0 a6 10.Na2=; 7...c5 8.Be2 0–0 9.Ne5 a6 10.0–0=; 7...Qc7 8.Na2 Bd6 9.Bf6 gf6 10.c4=; 7...Qe7 8.Ne5 Bb7 9.Bd3 0–0 10.0–0=; 7...Bd7 8.Bd3 a6 9.0–0 0–0 10.Ne5=; 7...Qd7 8.Ne5 Qc7 9.Ng4 Be7 10.a5=) 8.Be2 Bd6 9.Ba3 Ba3 10.Ra3+=; E) 7.Ba3 Ba3 (7...Ba5 8.Be2 c5 9.0–0 a6 10.d4=; 7...Bd6 8.Bd6 Qd6 9.d4 a6 10.Nbd2=; 7...Bc5 8.Bc5 bc5 9.Be2 a6 10.ba6=; 7...Be7 8.Be7 Qe7 9.d4 a6 10.Nbd2=) 8.Ra3 a6 9.d4 0–0 10.Bd3=; F) 7.Bc3 Be7 (7...Bc3 8.Nc3 0–0 9.Ne5 a6 10.Bd3=; 7...Bd6 8.Ne5 Bb7 9.a5 ba5 10.bc6=; 7...Bc5 8.Be5 a6 9.d4 Bb4 10.c3=; 7...a5 8.bc6 Nc6 9.Bb5 Bd7 10.Bb4=; 7...c5 8.Bb4 cb4 9.d4 0–0 10.Bd3=; 7...Bf8 8.a5 a6 9.ab6 Qb6 10.ba6=; 7...Qe7 8.Bb4 Qb4 9.Nc3 0–0 10.Be2=; 7...Qd6 8.Be5 Qd8 9.Bb8 Rb8 10.Ne5=) 8.Ne5 0–0 9.Bd3 Qc7 10.0–0=; G) 7.Ne5 Bb7 (7...c5 8.Qf3 a6 9.c3 Ba5 10.Nc4=; 7...0–0 8.Nc6 Nc6 9.bc6 Be7 10.Be5=; 7...Bd7 8.Qf3 Be7 9.Be2 0–0 10.Nc3=) 8.Bd3 a6 9.Qe2 ab5 10.ab5=.

6.Nf3 Bb7 7.Be2 a6 8.c4 dc4 9.Bc4 Bb4 10.0–0 ab5 11.ab5 Ra1 12.Ba1 Bd6 13.d3 c5 14.e4 Be7 (14...Bf4 15.Qc2=) 15.Qa4 (15.Qc2 0–0+=) 15...Nbd7= 16.Nbd2 h6 17.h3 Rg8 18.Bb2 g5 19.Nh2 h5 20.f3 (20.Qc2 g4 21.h4 g3 22.fg3 Bd6=) 20...Qc7 21.Rf2 Bd6 (21...g4 22.fg4 hg4 23.hg4+=) 22.Ndf1 (22.Nhf1 Be5 23.Be5 Qe5=) 22...Ke7 23.Qd1 Be5 24.Be5 Ne5 25.Ne3 Ng6 (25...Rd8 26.Qf1+=) 26.Nhf1 Nf4 27.Kh1 Qe5 28.Ra2 g4 29.h4 gf3 30.Qf3 Ne4 (better is 30...Ra8!? 31.Ra8 Ba8=) 31.Ra7+/– Nd6 32.Rb7 Nb7 33.Qb7 Kf6 34.Qf3 (34.Qb6!? Ne2 35.Qc6+/–) 34...Kg7+= 35.Qb7 (better is 35.Ng3 Rh8 36.Ne4+=) 35...Kh6 (better is 35...Qf6 36.g3 Ne2=) 36.Qf7+– Rg7 37.Qf8 Ne2?? (better is 37...Kh7+/–) 38.Qh8 (better is 38.Be6 Nd4 39.Bf5 Qe7 40.Qh8 Rh7 41.Bh7 Qh7+–) 38...Kg6 39.Qe8 Kh7 (39...Kf6 40.Qd8 Kg6 41.d4 Ng3 42.Ng3 Qe3 43.Kh2 cd4 44.Qe8 Kh7 45.Qh5 Kg8 46.Nf5+–) 40.Qe6 (40.Be6 Ng3 41.Ng3 Qa1 42.Kh2+–) 40...Ng3 (40...Qe6 41.Be6 Nd4 42.Bc4+–) 41.Ng3 Qg3 (41...Qe6 42.Be6 Rg3 43.Bf5 Kh6+–) 42.Qe4 Kh8 (42...Qg6 43.Qe5 Ra7 44.Bd5+–) 43.Nf5 (43.Qe8 Rg8 44.Qh5 Kg7 45.Nf5 Kf6 46.Qf7 Ke5 47.Qe6 Kf4 48.Qe4) 43...Qg6+– 44.Ng7 (44.Bd5 Kh7 45.Qe5 Rf7+–) 44...Qg7 (44...Qe4 45.de4 Kg7 46.e5+–) 45.Qe8 (45.Qe8 Kh7 46.d4+–) 1–0. Mauron,Regis – Branson,James (1745), Montigny le Bretonneux Noel op, 2008.

6.Nf3 Bc5 A) 7.Be5 a6 (7...0–0 8.d4 Bb4 9.c3 Bd6 10.Bd3=; 7...Bb7 8.a5 ba5 9.d4 Bb4 10.c3=; 7...Bd6 8.a5 ba5 9.bc6 Be5 10.Ne5=; 7...Bb4 8.Bb8 Rb8 9.Nd4 Bb7 10.bc6+=; 7...Bd7 8.Be2 a6 9.d4 Be7 10.Nbd2=; 7...Nbd7 8.d4 Ne5 9.Ne5 Qc7 10.Nc6=; 7...Qe7 8.d4 Bd6 9.Bd3 a6 10.Nbd2+=) 8.Nc3 Bb7 9.Be2 0–0 10.0–0=; B) 7.Be2 a6 (7...0–0 8.Ne5 Bb7 9.0–0 a6 10.d4=; 7...Bd6 8.0–0 0–0 9.Bd4 Nfd7 10.Bb2=; 7...Bb7 8.Ba3 Ba3 9.Na3 a6 10.0–0=; 7...cb5 8.ab5 0–0 9.0–0 Bd6 10.Be5=; 7...Bd7 8.Be5 a6 9.d4 Be7 10.ba6=; 7...a5 8.Be5 0–0 9.d4 Bb4 10.c3=; 7...Qc7 8.0–0 a6 9.c4 dc4 10.Bc4=; 7...Be7 8.0–0 a6 9.Be5 Bb7 10.Nc3=) 8.0–0 0–0 9.Be5 Nfd7 10.Bb2=; C) 7.Bd3 a6 (7...0–0 8.Ne5 Bb7 9.0–0 Bd6 10.f4=; 7...Bd6 8.0–0 a6 9.Ne5 Bb7 10.f4=; 7...Bb7 8.0–0 0–0 9.Ne5 Bd6 10.f4=; 7...Bd7 8.0–0 a6 9.Ne5 0–0 10.Nd7=; 7...Be7 8.0–0 a6 9.Be5 Bb7 10.Nc3=; 7...a5 8.Ne5 Bb7 9.Qf3 0–0 10.0–0=; 7...Qc7 8.a5 Nbd7 9.bc6 Qc6 10.Ne5=; 7...Bb4 8.Ne5 Bb7 9.0–0 a6 10.bc6=) 8.Ne5 Qc7 9.Qf3 cb5 10.Qg3=; D) 7.a5 cb5 (7...0–0 8.ab6 Bb6 9.Ne5 Bb7 10.Na3=; 7...ba5 8.Ne5 Qb6 9.Nc3 Bd6 10.f4=; 7...a6 8.ab6 0–0 9.ba6 Bb6 10.Ne5=; 7...Bd7 8.ab6 Bb6 9.Na3 Bc5 10.Ne5=; 7...Bb7 8.a6 Bc8 9.Ne5 cb5 10.Bb5=; 7...Bd6 8.ab6 Qb6 9.Bd4 c5 10.Bf6=; 7...Be7 8.Ne5 cb5 9.Bb5 Bd7 10.Nd7=) 8.Bb5 Bd7 9.Be2 ba5 10.d4=; E) 7.bc6 Nc6 8.Bb5 Bd7 9.Ne5 Ne5 10.Be5=; F) 7.d4 Bd6 (7...Bb4 8.Nbd2 a6 9.Bd3 0–0 10.0–0=; 7...Be7 8.Bd3 a6 9.0–0 ab5 10.ab5=; 7...Bf8 8.Bd3 Bb4 9.c3 Bd6 10.Ba3=) 8.Bd3 a6 9.Ba3 c5 10.dc5=; G) 7.Ne5 Bb7 (7...cb5 8.ab5 0–0 9.Bd3 a5 10.0–0=; 7...Qc7 8.Nc6 Nc6 9.Bf6 gf6 10.bc6=; 7...0–0 8.Nc6 Nc6 9.bc6 Bd6 10.c4+=; 7...Bd7 8.Nd7 Qd7 9.Bf6 gf6 10.Qg4+=; 7...Bd6 8.Nc6 Nc6 9.bc6 Qc7 10.Bf6+=; 7...Be7 8.a5 cb5 9.Bb5 Bd7 10.Nd7+=) 8.Bd3 0–0 9.0–0 Bd6 10.f4=.

6.Nf3 Bd7 7.Nc3 (7.Be5 a6=) 7...Bd6 8.Be2 (8.bc6 Nc6 9.Nb5 Bb8=) 8...0–0 (8...e5 9.Ba3 Ba3 10.Ra3=) 9.0–0 (9.Ba3 Ba3 10.Ra3 a6 11.ba6 Na6=) 9...a6+= 10.d4 cb5 (10...Qc7!?+=) 11.ab5 +=. mic (2115) – bmurtinho (1955), net–chess.com, 2008.

6.Nf3 Be7 A) 7.Ne5 c5 (7...Bb7 8.Be2 0–0 9.0–0 a6 10.Nc3=; 7...a6 8.bc6 Qd6 9.Ng4 Nc6 10.Nf6=; 7...Qc7 8.Ng4 a6 9.Be5 Qb7 10.Bd3=; 7...Bd7 8.Bd3 a6 9.0–0 0–0 10.Nc3=; 7...0–0 8.Bd3 Bb7 9.0–0 a6 10.Nc3=; 7...cb5 8.ab5 0–0 9.Bd3 a5 10.0–0=; 7...Qd6 8.a5 ba5 9.bc6 Nc6 10.Bb5=; 7...Bd6 8.Nc6 Nc6 9.bc6 e5 10.Na3=) 8.Be2 0–0 9.0–0 a6 10.d4=; B) 7.Be2 0–0 (7...a6 8.0–0 0–0 9.Na3 Bb7 10.d3=; 7...Bb7 8.Nc3 0–0 9.0–0 c5 10.d3=; 7...Bd6 8.Ne5 Bb7 9.0–0 a6 10.f4=; 7...Bd7 8.0–0 a6 9.Ne5 0–0 10.Nc3=; 7...c5 8.0–0 0–0 9.Nc3 Bd6 10.d4=; 7...cb5 8.ab5 0–0 9.0–0 a5 10.ba6=; 7...a5 8.0–0 0–0 9.Na3 c5 10.Rc1=; 7...Bc5 8.Ne5 a6 9.bc6 Qc7 10.c4=) 8.0–0 a6 9.Be5 Nfd7 10.Bb2=; C) 7.Be5 c5 (7...Bb7 8.Be2 0–0 9.0–0 c5 10.Bb8=; 7...Bd7 8.Be2 Ne4 9.d3 Nd6 10.c4=; 7...0–0 8.Bb8 Rb8 9.Ne5 Bb7 10.bc6+=; 7...Nbd7 8.bc6 Ne5 9.Ne5 Bd6 10.f4=; 7...cb5 8.ab5 Nbd7 9.d4 Ne5 10.Ne5=; 7...Bd6 8.a5 ba5 9.Nc3 0–0 10.Bd6=) 8.Be2 Nbd7 9.Bb2 Bd6 10.0–0+=; D) 7.Nc3 Bd6 (7...a6 8.Bd3 0–0 9.Ne5 Qd6 10.f4+=; 7...0–0 8.Be2 Bd6 9.a5 ba5 10.bc6=; 7...Qc7 8.a5 ba5 9.Na4 Nbd7 10.bc6=; 7...Bb7 8.Be2 0–0 9.0–0 a6 10.Ne5=; 7...Qd6 8.a5 ba5 9.Ba3 c5 10.d4=; 7...c5 8.Be2 0–0 9.d3 Nbd7 10.d4=; 7...Bb4 8.Ne5 Bb7 9.Bd3 a6 10.0–0=; 7...Bd7 8.Ne5 a6 9.Be2 0–0 10.0–0=) 8.bc6 a6 9.Be2 Nc6 10.0–0+=; E) 7.Na3 a6 (7...0–0 8.Be2 a6 9.0–0 Bb7 10.d3=; 7...Bd6 8.a5 ba5 9.bc6 Nc6 10.Nb5+=; 7...cb5 8.ab5 0–0 9.Be2 Nbd7 10.0–0=; 7...Bb7 8.Be2 0–0 9.0–0 a6 10.Ne5=; 7...Bd7 8.Be2 0–0 9.0–0 a6 10.Ne5=; 7...c5 8.Be2 0–0 9.0–0 a6 10.ba6=; 7...Bb4 8.Ne5 Bb7 9.Bd3 Qe7 10.0–0=; 7...a5 8.Be2 0–0 9.0–0 c5 10.c4=) 8.Be2 0–0 9.0–0 Bb7 10.Ne5+=; F) 7.d4 Bd7 (7...0–0 8.Bd3 a6 9.Ba3 c5 10.dc5=; 7...Bb4 8.Nbd2 a6 9.Bd3 0–0 10.0–0=; 7...a6 8.Bd3 0–0 9.Ba3 c5 10.dc5=; 7...Qc7 8.Bd3 a6 9.Ba3 c5 10.dc5=; 7...Bd6 8.Bd3 a6 9.Ba3 c5 10.dc5=; 7...Ne4 8.Bd3 a6 9.0–0 0–0 10.c4=; 7...Bb7 8.Bd3 a6 9.0–0 0–0 10.bc6=; 7...Nfd7 8.Bd3 0–0 9.0–0 a6 10.Nbd2=) 8.Bd3 a6 9.Ba3 c5 10.c3=; G) 7.Bd3 c5 (7...0–0 8.0–0 a6 9.Ne5 Bb7 10.f4=; 7...a6 8.0–0 0–0 9.Ne5 Qc7 10.f4=; 7...Bb7 8.0–0 0–0 9.Nc3 a6 10.Ne5=; 7...Bd6 8.0–0 a6 9.Ne5 Bb7 10.f4=; 7...Bd7 8.0–0 0–0 9.Ne5 Qc7 10.Qe2=) 8.0–0 0–0 9.Ne5 a6 10.Nc3=.

6.Nf3 Bd6

7.a5 ba5 (7...a6 8.ab6 Qb6 9.Bf6 gf6 10.Nc3=; 7...Bd7 8.Bf6 gf6 9.bc6 Nc6 10.ab6=; 7...c5 8.ab6 Qb6 9.c4 Nbd7 10.d4=; 7...cb5 8.Bb5 Bd7 9.ab6 Qb6 10.Bf6=; 7...Bb7 8.a6 Bc8 9.Ne5 cb5 10.Bb5=; 7...Qc7 8.ab6 Qb6 9.Bd4 c5 10.Bf6=) 8.Ne5 (8.Be5 a6 9.Bd6 Qd6 10.bc6+=) 8...Qb6+= 9.Ng4 Nbd7 10.Nf6 +=.

7.Nc3 e5 (7...a6 8.Be2 0–0 9.0–0 e5 10.d4+=) 8.bc6 a6 9.d4 e4 10.Ne5 +=.

7.c4 0–0 8.Nc3+= a6 9.cd5 ed5 10.Be2 =.

7.c4 a5 8.bc6 Nc6 9.cd5 ed5 10.Bb5 =.

7.c4 a6 8.cd5 ed5 9.Nc3 0–0 10.Be2 =.

7.c4 dc4 8.Na3 0–0 9.Nc4 Be7 10.Qc2 =.

7.Bd3 Bb7 (7...a6 8.Ne5 c5 9.0–0 0–0 10.f4=; 7...0–0 8.Be5 a6 9.Nc3 Be5 10.Ne5=; 7...c5 8.0–0 a6 9.Na3 0–0 10.c4=; 7...a5 8.0–0 0–0 9.Na3 c5 10.c4=; 7...Qe7 8.Ne5 Bb7 9.0–0 0–0 10.f4=; 7...cb5 8.ab5 Nbd7 9.0–0 0–0 10.Nc3=; 7...Bd7 8.0–0 a6 9.Ne5 ab5 10.ab5=; 7...Qc7 8.Bf6 gf6 9.Nc3 a6 10.e4=) 8.Be5 a6 9.Nc3 Be5 10.Ne5 =.

7.Nd4 Bb7 (7...Bd7 8.f4 a6 9.Be2 0–0 10.0–0=; 7...c5 8.Nf3 Nbd7 9.Be2 0–0 10.0–0+=; 7...cb5 8.Nb5 e5 9.a5 ba5 10.d4=; 7...e5 8.Nc6 Nc6 9.bc6 Qc7 10.f4=; 7...0–0 8.Nc6 Nc6 9.bc6 e5 10.Bb5=; 7...Qc7 8.Nc6 Nc6 9.Bf6 gf6 10.bc6=) 8.a5 ba5 9.bc6 Nc6 10.Bb5 +=.

7.Be2 Bb7 (7...a6 8.0–0 0–0 9.Ne5 Bb7 10.f4=; 7...0–0 8.0–0 a6 9.Ne5 Bb7 10.f4=; 7...cb5 8.ab5 0–0 9.0–0 a5 10.ba6=; 7...Bd7 8.Be5 Be5 9.Ne5 a6 10.Nc3=; 7...c5 8.0–0 0–0 9.Na3 Nbd7 10.d3=; 7...Qe7 8.0–0 0–0 9.Be5 a6 10.Bd6=; 7...a5 8.Na3 c5 9.c4 Bb7 10.0–0=; 7...Qc7 8.Bf6 gf6 9.c4 cb5 10.cd5=) 8.0–0 0–0 9.Be5 a6 10.Bd6 +=.

7.Be5 0–0 (7...a6 8.Nc3 0–0 9.Bd3 Be5 10.Ne5=; 7...Be5 8.Ne5 a6 9.Nc3 Qd6 10.f4=; 7...c5 8.Be2 a6 9.0–0 0–0 10.d4=; 7...Qc7 8.Bd6 Qd6 9.d4 a6 10.Nbd2=; 7...Bb7 8.d4 a6 9.Nbd2 c5 10.a5=; 7...Bc7 8.d4 0–0 9.Bd3 a6 10.Nbd2=) 8.d4 Ne4 9.Nbd2 Bb4 10.c4 +=.

7.Ne5 0–0 (7...Bb7 8.Be2 0–0 9.0–0 a6 10.f4=; 7...Qc7 8.Nc6 Nc6 9.Bf6 gf6 10.bc6=; 7...c5 8.Qf3 Be5 9.Be5 Nbd7 10.Bb2=; 7...cb5 8.Bb5 Bd7 9.Ng4 Be7 10.Qf3=; 7...Be5 8.Be5 Nbd7 9.Bg3 c5 10.Nc3=; 7...a6 8.Nc6 Nc6 9.bc6 e5 10.c4=; 7...Bd7 8.Nd7 Qd7 9.Qf3 Be7 10.Be2=; 7...Ne4 8.Nc6 Nc6 9.bc6 0–0 10.Qh5=) 8.Nc6 Nc6 9.bc6 e5 10.Bb5 =.

7.c4 Bb7

8.Nc3 0–0 9.Rc1 (9.cd5 cd5 (9...Nd5 10.Nd5=) 10.d4= (10.Be2 e5=)) 9...c5 (9...dc4 10.Bc4=) 10.cd5 (10.d4=) 10...ed5 11.Be2 d4 12.ed4 cd4 13.Nd4 Bc5 (13...Bg2 14.Rg1 Bb7 15.Nf5+=) 14.Nf5 (14.Nf3 a6+/–) 14...Re8 (14...Qd7 15.Ne3+=) 15.0–0+/– Bg2?? (better is 15...a6+/–) 16.Kg2+– Qd5 (16...a6+–) 17.Nd5 (17.Nd5 Nd5 18.Bf3 Nf4 19.Kh1+–) 1–0. pierre – fidaras64, internet, 2008.

8.Nc3 Nbd7 9.bc6 Bc6 10.cd5 Bd5 (10...Nd5 11.Nd5 Bd5 12.Bg7 Rg8+= 13.Bc3+=) 11.Nd5 ed5 12.Bb5 0–0 13.Bd7 =.

8.Nc3 Nbd7 9.cd5 cd5 A) 10.Be2 0–0 11.Rc1 Rc8 12.d4 Ne4 13.0–0=; B) 10.Rc1 Qe7 (10...0–0 11.d4 a6 12.Bd3 Qe7 13.Qb3=) 11.d4 0–0 12.Bd3 Rfc8 13.0–0=; C) 10.Ba3 Ba3 11.Ra3 Qe7 12.Qb3 0–0 13.d4=; D) 10.d4 e5 (10...Qe7 11.Bd3 0–0 12.0–0 Rfc8 13.Qe2=; 10...0–0 11.Bd3 Rc8 12.0–0 Ne4 13.Rc1=) 11.de5 Ne5 12.Be2 Nc4 13.Qb3=.

8.Nc3 Nbd7 9.Be2 0–0 A) 10.0–0 dc4 (10...cb5 11.cb5 e5 12.d4 e4 13.Nh4=; 10...e5 11.d4 e4 12.Nd2 a6 13.bc6=) 11.Bc4 Ng4 12.Be2 a6 13.Ne4=; B) 10.cd5 Nd5 (10...cd5 11.Rc1 e5 12.d4 e4 13.Nh4=) 11.Nd5 cd5 12.0–0 Rc8 13.d4=.

8.Nc3 Nbd7 9.Be2 cb5 10.cb5 (10.cd5 ba4 (10...Nd5 11.ab5 0–0 12.Ne4 Be7 13.Ng3=; 10...Bd5 11.Nd5 Nd5 12.ab5 0–0 13.0–0+=) 11.de6 fe6 12.d4 Bc6 13.Bb5=) 10...Rc8 (10...0–0 11.Rc1 a6 12.0–0 e5 13.ba6=; 10...a6 11.ba6 Ba6 12.Nb5 Bb5 13.Bb5=; 10...Ne4 11.Rc1 0–0 12.0–0 a6 13.ba6=; 10...Nc5 11.0–0 0–0 12.d4 Nce4 13.Ne4=; 10...Qb8 11.d4 0–0 12.Rc1 a6 13.0–0=; 10...e5 11.d4 e4 12.Nh4 Bb4 13.Qb3+=) 11.d4 Bb4 (better is 11...Ne4 12.Qb3 (12.Rc1 0–0= 13.0–0=) 12...Ndf6 13.0–0=) 12.Qd3?? (better is 12.Qb3 A) 12...Ba5 13.Rc1+= (13.0–0+=); B) 12...Bd6 13.0–0+=; 12.Rc1 0–0 13.0–0=) 12...Ne4–+ 13.Rc1 0–0?? (better is 13...Qc7–+) 14.0–0= Ndf6 15.Rc2 Qe7 16.Rfc1 Nc3 17.Bc3 Ba3 18.Rb1 Ne4 19.Bb2 Bd6 20.Rbc1 f5 21.Rc8 Bc8 (21...Rc8 22.Rc8 Bc8 23.Qc2=) 22.Qb3 f4 (22...Bb7 23.Rc2=) 23.Bd3 (23.ef4!? Bf4 24.Ba3+=) 23...fe3= 24.fe3 Rf3 25.Rc8 (25.gf3?? Qg5 26.Kf1 Nd2 27.Kf2 Qh4 28.Ke2 Qh2 29.Kd1 Nb3 30.Rc8 Kf7–+) 25...Kf7 26.Be4 (26.gf3?? Qg5 27.Kf1 Nd2 28.Kf2 Qh4 29.Ke2 Nb3–+) 26...Bh2 27.Kh2 Qh4 28.Kg1 ½–½. Trkn – goldenbeauty, itsyourturn.com, 2000.

8.Nc3 Nbd7 9.Be2 dc4 A) 10.Rc1 0–0 (10...a6 11.bc6 Bc6 12.Bc4 Bf3 13.gf3=; 10...c5 11.Bc4 Bf3 12.Qf3 Ne5 13.Qe2=; 10...Rc8 11.Bc4 0–0 12.bc6 Bc6 13.Nb5=; 10...e5 11.Bc4 0–0 12.0–0 a6 13.bc6=) 11.Bc4 Rc8 12.bc6 Bc6 13.Nb5=; B) 10.Bc4 0–0 (10...a6 11.bc6 Bc6 12.d4 0–0 13.Rc1=; 10...Rc8 11.d3 0–0 12.0–0 Ne5 13.Ne5=; 10...cb5 11.ab5 0–0 12.d4 Qc7 13.Bd3=; 10...Qe7 11.0–0 0–0 12.d4 Rac8 13.Qe2=) 11.d3 a6 12.0–0 Qc7 13.ba6=; C) 10.a5 ba5 (10...a6 11.ba6 Ra6 12.ab6 Nb6 13.Ra6+=; 10...Rc8) 11.Bc4 Rb8 12.0–0 a6 13.ba6+=; D) 10.bc6 Bc6 11.Bc4 Ne5 12.Bb5 Rc8 13.Ne5=.

8.cd5 cd5 9.Ba3 a6 10.d4 =.

5.e3 c5

6.c4 dc4 7.Bc4 b6 8.Nf3 Bb7 9.d3 Nbd7 10.Nbd2 Be7 11.0–0 0–0 12.Qb3 Nd5 13.g3 N7f6 14.e4 Nc7 15.Ne5 Nd7 16.f4 Bd6 17.Nef3 Be7 18.h3 h6 19.Kh2 a6 20.g4 a5 21.f5 ef5 22.gf5 Ne8 23.Rg1 Qc7 24.Kh1 Bf6 25.Rg2 Ne5 26.Ne5+/– Be5 27.Nf3 Bb2 28.Qb2 Qf4 29.Nh2 Kh7 30.Rf1 Qe3 31.Rf3 Qe1? 32.Rg1+/– Qh4 33.Rfg3 f6 34.Qe2 Qf4 35.Rg4?? Qf5=+ 36.Nf3 Qh5?? 37.Rg7 Ng7–+ 38.Ng5 hg5 39.Qh5 Nh5 40.Rf1 Kg6 41.Kh2 Nf4 42.Kg3 Rad8 43.h4 Rh8 44.hg5 fg5 45.Kg4 Rh4 46.Kf3 Rh3 47.Kf2 Nd3 48.Bd3 Rdd3 49.Ke2 Rhe3 50.Kf2 Rf3 51.Ke2 Rf1 52.Kd3 Rf4 53.e5 Kf5 54.e6 Ke6 55.Ke3 Ra4 56.Kd3 Rb4 57.Kc3 a4 58.Kd3 a3 59.Ke3 a2 60.Kf2 a1Q 61.Ke3 Qc3 62.Ke2 Rb2 63.Kd1 Qd2 (63...Bf3) 0–1. carocan (1840) – zdeno75, kurnik, 2011.

6.c4 dc4 7.Bc4 Be7 8.Nf3 0–0 9.0–0 b6 10.d3 Bb7 11.Nbd2 Nbd7 12.Qb3 Bd6 13.e4 Ng4 14.h3 Nge5 15.Ne5 Ne5 16.f4 Nc4 17.Nc4 Bc7 18.f5 ef5 19.Rf5 f6?? 20.Raf1 Kh8 21.e5 Qd5 22.R1f2 g6 23.Rf6+/– Rf6 24.ef6+– h5?? 25.f7 Kh7 26.f8Q Rf8+= 27.Ne3?? Qb3–+ 28.Rf8 Qb2 29.Rf7 Kh6 30.Rc7 Qc1 31.Nf1 Bd5 32.Ra7 Qc3 33.Ra6 Qd3 34.Rb6 Qe4 35.Rg6 Kg6 (35...Kg6 36.Kf2 Qg2 37.Ke3 Qf3 38.Kd2 Qf2 39.Kc3 Qd4 40.Kc2 Be4 41.Kb3 Bb1 42.a5 Qb4) 0–1. carocan (1795) – elmirce (1690), kurnik, 2011.

6.c4 d4 7.Bd3 de3 (7...e5!?+= A) 8.f3 Bd6 (8...Be6 9.Ne2 Bd6 10.0–0 a6 11.Qc2 0–0 12.Bf5+=) 9.Ne2 Be6 10.0–0 a6 11.Qc2 0–0 12.Bf5+=; B) 8.ed4 cd4 9.Qe2 Bd6 10.Bd4 0–0 11.Be3 e4 12.Bc2=) 8.de3+= b6? (8...a6 9.e4 (9.Nf3+= b6 10.0–0 Bb7 11.Nc3 Be7 12.Qe2+=) 9...Qa5 10.Bc3 Qc7 11.e5 Nfd7 12.Nf3+=; 8...Bd6 9.Nf3 0–0 10.0–0 Re8 11.Qd2 Qe7 12.Rd1+=) 9.Nf3?? (better is 9.Qf3 Qd3 10.Qa8+–) 9...Bb7+= 10.Be2 Qd1 11.Bd1 Be7 12.0–0 0–0 13.Be2 Nbd7 14.Rd1 Rad8 (14...a6 15.Ne5 Ne5 16.Be5 ab5 17.ab5 Ra1 18.Ba1=) 15.Nbd2 Ne4 16.Ne4 Be4 17.Nd2 Bb7 18.Bf3 Bf3 19.Nf3 Bf6 20.Bf6 Nf6 21.Ne5 Rd1 22.Rd1 Rc8 23.Nc6 Kf8 24.Rd8 (24.a5!? Ra8 25.a6+/–) 24...Rd8= 25.Nd8 Ne4 26.Nc6 Nc3 (26...Nd6!? 27.a5 ba5 28.Na5 e5=) 27.Na7 (better is 27.a5 ba5 28.Na7=) 27...Na4+= ½–½. hal1958 – jsm, playchess.de, 2003.

6.c4 d4 7.Nf3 Bd6 8.ed4 0–0 (8...cd4!? 9.Bd4 Nbd7+= 10.Bc3+=) 9.dc5+/– Bc5 10.d4 Bb4 11.Bc3 Qa5 12.Qd2 Bc3 13.Qc3 Qc7 14.Nbd2 b6 15.Bd3 Bb7 16.0–0 Nbd7 17.Rfe1 Rfd8 18.Rac1 Rac8 19.Qa3 Qf4 20.c5 (20.a5 Qg4+–) 20...bc5 21.dc5 Bf3 (21...Nc5 22.Rc5 Rc5 23.Qc5 Rd3 24.Qa7+/–) 22.Nf3 Nd5 23.Rc4 Qf6 (23...Qc7 24.Rec1+/–) 24.c6 N7b6 25.Rh4 h6 26.a5 Na8 27.Qa1 Nc3 28.Bf1 Rd5 29.Rb4 Rcd8?! (29...Nc7 30.b6 Rc5 31.Rc4 (worse is 31.bc7 Rc6 32.Ne5 R6c7+–) 31...Rc4 32.b7+–) 30.Rb3 Rc5 31.Rc1 Ne4 32.Qf6 gf6 33.Rc5 Nc5 34.Rb1 (34.Rb4 Rd6+–) 34...Na4 (34...Rb8 35.Nd2+–) 35.Rb4 (35.Rc1!? Kg7+–) 35...Nc3 36.g3 (36.b6 ab6 37.ab6 Nd5 38.Rg4 Kf8+–) 36...Kf8 37.Rb3 Na4 38.Rb4 Nc3 39.Bc4 e5 (39...Rb8+–) 40.b6 e4 (40...ab6 41.ab6 Nb6 42.Rb6+–) 41.Nh4 (better is 41.b7!? Nc7 42.b8Q Rb8 43.Rb8 Ke7+–) 41...ab6 42.ab6 e3 (42...Nb6 43.Rb6 Ke8 44.Nf5+–) 43.c7 Rd1 (43...Re8 44.fe3 Ke7 45.Nf5 Kd7 46.Bf7 Nb6 47.Be8 Kc7+–) 44.Kg2 Nb6 45.Rb6 (45.Rb6 Rg1 46.Kg1 Kg7 47.Nf5 Kg6 48.Ne7 Kg7 49.c8Q Ne2 50.Be2 ef2 51.Kf2 h5 52.Qg8 Kh6 53.Rf6) 1–0. Palmi,Herbert – Neulinger Jagode,Rupert, Nord Bayern–ch, 2001.

6.c4 d4 7.Nf3 de3 8.fe3 Bd6 9.Be2 Nbd7 10.0–0 =.

6.c4 Bd6 7.Be2 (7.Nf3 Nbd7 8.Be2 e5 9.cd5 e4 10.Nh4+=) 7...0–0 8.Nf3 Re8 9.Nc3 e5 10.cd5 =.

6.c4 Nbd7 7.Nf3= (7.d4 cd4 8.Bd4 Ne4 9.cd5 Bb4 10.Ke2+=) 7...Bd6 8.Be2 e5 9.cd5 e4 10.Nh4 +=.

6.c4 Be7 7.f4 0–0 8.Nf3 b6 9.Be2 Bb7 10.0–0 Nbd7 11.d4 cd4 12.Bd4 dc4 13.Bc4 Rc8 14.Nbd2 Nc5 15.Qe2 Nce4 16.Rfc1 Nd2 17.Nd2 Nd5 18.Nf3 Bf6 19.Ne5 Be5 20.Be5+= f6 21.Bb2 Kh8 22.Rd1 Qc7 23.Rac1 Qf7 24.g3 Qg6 25.Bd3 Qf7 26.e4 Nb4 27.Bc4 Rfd8 28.f5 Rd1 29.Rd1 Qc7 30.Be6 Rd8 31.Ba3 Rd1 32.Qd1 Qc5?? 33.Kf1+– h6 34.Qd2 Be4 35.Bb4 Qe5 36.Bf7 Bf5 37.Bc3 Qc5 38.Bb3 Kh7?? 39.Bc2 Qc4 40.Kf2 (40.Kf2 Bc2 41.Qc2 Kg8 42.Kf3+–) 1–0. carocan (1780) – abelha1313 (1715), kurnik, 2011.

6.Be2 Bd6 7.f4 0–0 8.Nf3 Nbd7 9.0–0 a6 10.Nc3 =.

6.Be2 Nbd7 7.f4 c4 8.Nf3 Bc5 9.a5 0–0 10.0–0 =.

6.Nf3 Bd6 7.Be2 Nbd7 8.c4 e5 9.cd5 e4 10.Nh4 +=.

6.Nf3 Nbd7 7.c4 Bd6 8.Be2 e5 9.cd5 e4 10.Nh4 +=.

6.Nf3 Nbd7 7.d4 c4 8.c3 Be7 9.Nbd2 0–0 10.Be2 Qc7 11.h3 a6 12.0–0 ab5 13.ab5 Ra1 14.Ba1 b6 15.Qc2 e5 16.de5 Ne5 17.Ne5 Qe5=+ 18.Nf3 Qc7 19.Nd4 Bb7 20.Bf3= Ne4 21.Bb2 Bc5 22.Ra1= Qe5 23.Ra7 Bc8 24.Nc6 Qf6 25.Be4+/– de4 26.Qe4 Be6 27.Ne5 Qd8+= 28.Qc2 Qg5 29.Nf3+= Qd5 30.Nd4 Bd7 31.e4+/– Qd6 32.Kf1 Be6 33.Qe2 Qh2= 34.Nf3 Bh3?? 35.Nh2+– Be6 36.Ba3 Ba3 37.Ra3 Rd8 38.f3 g6 39.Ra6 Rb8 40.Qe3 h5 41.Rb6 Ra8 42.Ra6 Rd8 43.b6 Rd1 44.Kf2 Rb1 45.Ra8 Kh7 46.Qd4 Rb2 47.Kg1 Rb1 48.Nf1 Kh6 49.Rh8 Kg5 50.Qe3 Kf6 51.e5 Ke7 52.Qc5 Kd7 53.Qd6# 1–0. mic (2155) – lopesqwf (2205), net–chess.com, 2008.

6.Nf3 Nbd7 7.Be2 Bd6 8.0–0 e5 9.Nh4 0–0 10.Nf5 +=.

6.Nf3 Be7 7.c4 (7.Be2 0–0=) 7...0–0 8.Be2 a6 9.0–0 ab5 (9...Nbd7 10.d4=) 10.ab5 Ra1 11.Ba1 Bd7 (11...dc4 12.Bc4 b6 13.d4=) 12.Nc3 (12.Qc2 dc4 13.Ng5 Re8 14.Bc4 g6+=) 12...dc4 13.Bc4 Be8 (13...Qc7 14.Qc2+=) 14.Ne5 (14.Na4 Nbd7+=) 14...Nbd7= 15.f4 Nb6 (15...Ne5 16.fe5 Nd7 17.Na4=) 16.Bb3 Nfd7 17.Qc2 (17.d4 Ne5 18.fe5 Bg5=) 17...Ne5 18.fe5 c4 19.Ba2 Qc7 (19...f6 20.ef6 Rf6 21.Rf6 Bf6 22.Qd1+=) 20.Qe4 Bb4 21.Rb1 (better is 21.Bb1 g6 22.d3=) 21...Bc3 (better is 21...Ba5=) 22.Bc3+/– (worse is 22.dc3 Bd7–/+) 22...Bd7 23.Rb4 (23.Bd4 Ra8 24.Bb6 Qb6 25.Bc4 Ra4+/–) 23...Rc8 24.Bd4 Ra8 25.Bb6 Qb6 26.Qc4 Rc8 27.Qb3 Qc7 28.Rd4 Qe5= 29.Qd3 Rc1 30.Kf2 Qf6 31.Kg3 Qe5 32.Kh3= Rh1 33.g3 Qh5 34.Rh4 Qb5 35.Bc4 Qf5?? 36.Kg2?? Qd3 37.Bd3 Rd1 38.Bh7 Kf8 39.d4 g6 40.Rf4 Kg7 41.Kf2 Bb5 42.h4? Rf1 43.Kg2 Rf4 44.gf4 Kh7 45.e4 Bc6 46.Kf3 f5 47.d5 fe4 48.Ke4 Bd5 49.Kd4 Kg7 50.Kc5 Kf6 51.Kd4 Kf5 (51...Kf5 52.Kc5 Kf4–+) 0–1. Woldbye – Hansen,SE, Copenhagen, 1983.

5.e3 Bc5

6.c4 0–0 7.Nf3 Bd7 8.Be2 Qb6 9.Nc3 Qd8 10.0–0 a6 11.Ne5 ab5 12.Nd7 Nbd7 13.ab5 Qe7 14.h3 cb5 15.d4 b4 16.Nb5 Ra1 17.Ba1 Bd6 18.c5 Bb8 19.Qb3 Rc8 20.Qb4 b6 21.Nd6 Bd6 22.cd6 Qd8 23.Bb2 h6 24.Rc1 Ne4 25.Bd3 Ndf6? 26.Rc8+/– Qc8 27.Be4 Ne4+= 28.Qb6 Qc2 29.f3?? Qf2 30.Kh2 Qg3 31.Kg1–/+ Ng5 32.d7?? Nf3 33.Kf1 Qe1 0–1. nizinna (1615) – albush0914 (1675), kurnik, 2011.

6.d4 Bb4 7.c3 A) 7...Be7 8.Nf3 (8.Ba3 0–0 9.Bd3 Ba3 10.Na3 c5 11.dc5 Qc7 12.c4 Qc5 13.Ne2=; 8.Bd3; 8.Be2) 8...c5 9.c4 0–0 10.Bd3 dc4 11.Bc4 Nbd7 12.0–0 a6 13.Qc2+=; B) 7...Bf8 8.Bd3 (8.Nf3; 8.Ba3; 8.Be2; 8.c4) 8...c5 9.c4 cd4 10.Bd4 dc4 11.Bc4 Bb4 12.Nc3 Nbd7 13.Qb3=; C) 7...Ba5 8.Bd3 (8.Nf3 Bd7 9.Bd3 Qb6 10.Ba3 cb5 11.Bc5 Qc7 12.ab5 b6 13.Bb4=; 8.Be2 Bd7 9.Nf3 Qb6 10.Ne5 cb5 11.Nd7 Nbd7 12.ab5 a6 13.Qa4=; 8.Nd2 0–0 9.Ngf3 Nbd7 10.Bd3 c5 11.c4 cd4 12.Bd4 Re8 13.c5=; 8.Qf3 Nbd7 9.Bd3 e5 10.Qg3 Bc7 11.bc6 bc6 12.f4 ef4 13.ef4–/+) 8...a6 9.Nf3 Bc7 10.0–0 ab5 11.ab5 Ra1 12.Ba1 0–0 13.Qb3=; D) 7...Bd6 8.Nf3 (8.Ba3 a6 9.Bd6 Qd6 10.ba6 Na6 11.Nf3 0–0 12.Bd3 Nc7 13.Ne5=; 8.Bd3 Nbd7 9.Nf3 e5 10.de5 Ne5 11.Ne5 Be5 12.0–0 Ne4 13.Qh5=; 8.c4 dc4 9.Bc4 cb5 10.Bb5 Bd7 11.Nf3 Bb5 12.ab5 0–0 13.0–0=) 8...c5 9.dc5 Bc5 10.c4 0–0 11.Be2 Qe7 12.0–0 Rd8 13.Nbd2=.

6.d4 Bb6 7.c4 0–0 (7...Ba5 8.Bc3 (8.Nc3 0–0 9.Nf3 a6 10.Bd3 dc4 11.Bc4 Ne4 12.Qd3 Nd6 13.0–0=; 8.Nd2 Ne4 9.Ngf3 Qf6 10.Bc1 c5 11.Bd3 cd4 12.ed4 Nc5 13.Be2=) 8...Ne4 9.Ba5 Qa5 10.Nd2 a6 11.bc6 Nc6 12.Ngf3 0–0 13.Bd3=; 7...Nbd7 8.Nf3 0–0 9.Bd3 dc4 10.Bc4 Ba5 11.Nbd2 Nb6 12.Bd3 Nbd5 13.Ba3+=; 7...Ne4 8.Nc3 (8.Qc2 Ba5 9.Nc3 a6 10.Bd3 Nc3 11.Bc3 dc4 12.Bc4 Qg5 13.Bf1=) 8...Ba5 9.Qc2 a6 10.Bd3 Nc3 11.Bc3 dc4 12.Bc4 Qg5 13.Bf1=; 7...a6 8.Bd3 (8.Nc3 Ba5 9.Nf3 Ne4 10.Rc1 0–0 11.Bd3 Nc3 12.Bc3 dc4 13.Bc4=; 8.Nd2 Ba5 9.Ngf3 0–0 10.cd5 ed5 11.Be2 Bf5 12.0–0 Re8 13.Qb3=; 8.Nf3 Ba5 9.Nbd2 0–0 10.cd5 ed5 11.Be2 Re8 12.0–0 Bf5 13.Qb3=; 8.bc6 Nc6 9.Nf3 0–0 10.Be2 Ba5 11.Nbd2 dc4 12.Bc4 b6 13.0–0=; 8.Qc2 Ba5 9.Nc3 Bd7 10.cd5 Nd5 11.ba6 Na6 12.e4 Nab4 13.Qd2+=) 8...dc4 9.Bc4 Bd7 10.ba6 Na6 11.Nf3 0–0 12.0–0 Ba5 13.Ne5=; 7...c5 8.dc5 Bc5 9.cd5 0–0 10.de6 Qd1 11.Kd1 Ne4 12.Ke2 Be6 13.Nd2+/–) 8.c5 (8.Nf3 Ba5 (8...a6 9.Nbd2 Ba5 10.cd5 ed5 11.Be2 Re8 12.0–0 Bf5 13.Qb3=) 9.Bc3 Ne4 10.Ba5 Qa5 11.Nbd2 a6 12.ba6 Na6= 13.c5=; 8.Nc3 Ba5 9.Nf3 a6 10.Bd3 ab5 11.ab5 dc4 12.Bc4 cb5 13.Bb5=; 8.Nd2 Ba5 9.Ngf3 a6 10.cd5 ed5 11.Be2 Re8 12.0–0 Bf5 13.Qb3=; 8.Qc2 a6 9.Nd2 ab5 10.ab5 Ra1 11.Ba1 cb5 12.c5 Ba5 13.Ngf3+=; 8.Bc3 Ne4 9.Qc2 c5 10.a5 Bc7 11.dc5 Nc3 12.Nc3 Ba5 13.cd5=; 8.Bd3 Ba5 9.Bc3 dc4 10.Bc4 Ne4 11.Ba5 Qa5 12.Nd2 Nc3 13.Qb3=) 8...Bc7 (8...Ba5 9.Nc3+= b6 10.Bd3 bc5 11.dc5 e5 12.Nge2 Bb4 13.Rc1+=) 9.Nf3 (9.Bd3 b6 10.Nf3 bc5 11.dc5 Qe7 12.Qc2 e5 13.Be2=) 9...Ne4 (9...Ba5 10.Bc3 Ne4 11.Qc2 Nc3 12.Nc3 Bb4 13.Bd3+=) 10.Nbd2 (10.Bd3 Ba5 11.Nfd2 e5+= 12.0–0 Nd2 13.Nd2=) 10...Ba5= 11.Bd3 Nd2 (11...Qf6 12.Be4 de4 13.Ne5+=) 12.Nd2+= b6 (12...Nd7 13.Qc2 Bd2 14.Qd2+=) 13.0–0+/– Bd7 (13...a6 14.Nb3 ab5 15.ab5 cb5 16.Bc3+/–) 14.Nb3 bc5 (14...Bb4 15.Ba3 Ba3 16.Ra3+/–) 15.Na5 Qa5 16.dc5 Qc7 17.Qh5 g6 (17...f5!?+/–) 18.Qh6+– e5 19.f4 ef4?? (19...f6 20.fe5 f5+–) 20.Qg7# 1–0. Langschmidt,Dirk (2050) – Pieleck,Rudi (1670), RSS5E NoEngine–128, 2010.

6.d4 Bb6 7.Nd2 A) 7...Bd7 8.c4 (8.Ngf3 Ba5 9.c4 0–0 10.cd5 ed5 11.Be2 a6 12.0–0 cb5 13.ab5=; 8.Bd3 Ba5 9.Ne2 a6 10.bc6 Nc6 11.0–0 Nb4 12.Bc3 Nd3 13.Ba5=; 8.Ba3 Ba5 9.Bd3 Bc3 10.Rb1 Qa5 11.bc6 Bc6 12.Ne2 Qa4 13.Bd6+=; 8.Nb3 0–0 9.Bd3 Bc7 10.Nf3 a6 11.0–0 ab5 12.ab5 Ra1 13.Qa1=; 8.Be2 Ba5 9.c4 dc4 10.Bc4 Ne4 11.Ngf3 cb5 12.Bb5 Bb5 13.ab5+=) 8...Ba5 9.Ngf3 0–0 10.cd5 Nd5 11.e4 Nf6 12.Bd3 a6 13.0–0=; B) 7...c5 8.dc5 (8.Ngf3 c4 9.Bc3 a6 10.a5 Bc7 11.b6 Bd6 12.Be2 0–0 13.Ne5=) 8...Bc5 9.Ngf3 0–0 10.Bd3 Nbd7 11.0–0 Bd6 12.Qe2 Nc5 13.Be5=; C) 7...Bc7 8.Ngf3 (8.Bd3 a6 9.Ngf3 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Bd7 13.Bd3=; 8.c4 0–0 9.Ngf3 Bd7 10.Bd3 dc4 11.Bc4 a6 12.ba6 Na6 13.0–0=; 8.Be2 Bd7 9.Ngf3 a6 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Ba3=) 8...a6 9.Bd3 Bd7 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Ba3=; D) 7...Ba5 8.Ngf3 (8.Bd3 Bd7 9.Ne2 a6 10.bc6 Nc6 11.0–0 Nb4 12.Bc3 Nd3 13.Ba5=; 8.Be2) 8...Bd7 9.c4 dc4 10.Bc4 Qb6 11.Qb3 cb5 12.ab5 Ne4 13.d5+=; E) 7...0–0 8.Ngf3 (8.Bd3 Nbd7 9.Ngf3 c5 10.dc5 Nc5 11.0–0 Bd7 12.Nb3 Nd3 13.Qd3=; 8.c4 c5 9.dc5 Bc5 10.Ngf3 Qe7 11.cd5 Nd5 12.Qc2 Nd7 13.a5=; 8.Be2 a6 9.Ngf3 Bd7 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Ba3=; 8.Ba3 Re8 9.Bd3 Nbd7 10.Ngf3 e5 11.de5 Ne5 12.Ne5 Re5 13.0–0=; 8.Qf3 a6 9.Bd3 Ba5 10.c3 Nbd7 11.Nb3 e5 12.bc6 bc6 13.Qd1+=) 8...Nbd7 9.Be2 c5 10.0–0 c4 11.Ba3 Re8 12.Bb4 Bc7 13.a5=; F) 7...a6 8.c4 (8.Bd3 ab5 9.ab5 Ra1 10.Qa1 cb5 11.Ba3 Ba5 12.Qb2 Ne4 13.Bb4=; 8.Ngf3 Bd7 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Qa3 Na6 13.0–0=; 8.Be2 ab5 9.ab5 Ra1 10.Qa1 cb5 11.Bb5 Bd7 12.Be2 Ba5 13.Bc3=; 8.Qf3 Bd7 9.Bd3 Ba5 10.Qg3 0–0 11.Ba3 Re8 12.ba6 Na6 13.Ngf3+=; 8.Nb3 ab5 9.ab5 Ra1 10.Qa1 Bd7 11.Nf3 cb5 12.Bd3 Na6 13.Qd1+=) 8...Bd7 9.bc6 Nc6 10.Ngf3 Ba5 11.Rb1 Rc8 12.c5 0–0 13.Ba3=.

6.d4 Bb6 7.Bd3 A) 7...Nbd7 8.Nf3 (8.Ne2 c5 9.dc5 Bc5 10.0–0 Qc7 11.a5 0–0 12.Nd2 Rd8 13.Ng3=; 8.Nd2 c5 9.dc5 Bc5 10.Ngf3 0–0 11.0–0 Bd6 12.Be2 Qe7 13.c4=; 8.Bc3 c5 9.dc5 Bc5 10.Nf3 0–0 11.0–0 Qc7 12.a5 e5 13.Be2+=) 8...c5 9.dc5 Nc5 10.0–0 0–0 11.Nbd2 Bd7 12.Nb3 Nd3 13.Qd3=; B) 7...0–0 8.Nf3 (8.Ne2) 8...Ba5 9.Nbd2 Ne4 10.0–0 Nc3 11.Qe1 a6 12.Ba3 Re8 13.ba6+=; C) 7...a6 8.Nc3 (8.Ne2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bc3 Nc6 12.Bb5 0–0 13.0–0=; 8.Nf3 Ba5 9.Nbd2 Bd7 10.Ne5 cb5 11.Nd7 Nbd7 12.ab5 ab5 13.0–0=; 8.Nd2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Nc6 13.Be2=; 8.Nh3 Ba5 9.Nd2 Bd7 10.bc6 Nc6 11.0–0 Rc8 12.Be2 Ne7 13.Nb3=) 8...ab5 9.ab5 Ba5 10.Nf3 cb5 11.Bb5 Bd7 12.0–0 Bc3 13.Bd7=; D) 7...Bd7 8.Nf3 Ba5 9.Bc3 Ne4 10.Be4 de4 11.Nfd2 Bc7 12.Ne4 Qh4 13.Nc5+=; E) 7...Ba5 8.Bc3 (8.Nd2 Bd7 9.Ne2 a6 10.bc6 Nc6 11.0–0 Nb4 12.Bc3 Nd3 13.Ba5=; 8.Nc3 a6 9.Nge2 cb5 10.ab5 ab5 11.Bb5 Bd7 12.0–0 Bc3 13.Nc3=) 8...a6 9.Ne2 Bc7 10.Nd2 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Qb2=.

6.d4 Bb6 7.Nf3 A) 7...a6 8.Be2 (8.Bd3 Ba5 9.Nbd2 Bd7 10.Ne5 cb5 11.Nd7 Nbd7 12.ab5 ab5 13.0–0=; 8.Nbd2) 8...Ba5 9.Nbd2 Bd7 10.ba6 Na6 11.0–0 0–0 12.Ne5 c5 13.c4+=; B) 7...Ne4 8.Bd3 (8.Be2; 8.Nfd2) 8...Qf6 9.Nbd2 Ba5 10.0–0 Nd2 11.Nd2 Nd7 12.e4 Nc5 13.e5+=; C) 7...0–0 8.Nbd2 (8.Be2 Ba5 9.Nbd2 Ne4 10.0–0 Nc3 11.Bc3 Bc3 12.Ra2 a6 13.Nb1=; 8.Bd3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Bd7 13.Bd3=) 8...Bd7 9.Bd3 a6 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Ba3+=; D) 7...cb5 8.ab5 (8.Bb5) 8...Ba5 9.Bc3 Bc7 10.Bd3 Bd6 11.0–0 0–0 12.Bb2 a6 13.Ba3+=; E) 7...Nbd7 8.Be2 (8.Bd3 c5 9.dc5 Nc5 10.0–0 0–0 11.Nbd2 Bd7 12.Nb3 Nd3 13.Qd3=; 8.Nbd2; 8.c4) 8...0–0 9.0–0 Bc7 10.c4 cb5 11.ab5 dc4 12.Bc4 Re8 13.Nc3+=; F) 7...Ba5 8.Bc3 (8.Nfd2 Bd7 9.Bd3 a6 10.0–0 cb5 11.ab5 Bb5 12.Bc3 Nc6 13.Ba5+=; 8.c3 Bd7 9.Bd3 Qb6 10.Ba3 cb5 11.Bc5 Qc7 12.ab5 b6 13.Bb4=; 8.Nbd2 Bd7 9.c4 0–0 10.cd5 ed5 11.Be2 a6 12.0–0 cb5 13.ab5=) 8...Ne4 9.Ba5 Qa5 10.Nbd2 a6 11.bc6 Nc6 12.c4 0–0 13.Bd3=.

6.d4 Bd6 A) 7.Bd3 A1) 7...Nbd7 8.Ba3 (8.Nf3 a6 9.Ba3 c5 10.0–0 ab5 11.Bb5 0–0 12.c4 dc4 13.Qc2=; 8.Ne2; 8.c4) 8...Ba3 9.Ra3 e5 10.Nh3 Qa5 11.Qd2 Qd2 12.Nd2 c5 13.a5=; A2) 7...0–0 8.Ba3 (8.Nf3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Qa5 13.Nc3+=) 8...e5 9.Bd6 Qd6 10.de5 Qe5 11.Nd2 Bg4 12.Ngf3 Bf3 13.Nf3=; A3) 7...Qa5 8.Nd2 (8.Bc3; 8.Qd2) 8...Bb4 9.Ngf3 Ne4 10.c4 Nd2 11.Nd2 dc4 12.Bc4 a6 13.Bd3=; A4) 7...Bd7 8.Nf3 (8.Ba3; 8.Ne2) 8...Qb6 9.Nc3 Bb4 10.0–0 0–0 11.Ne5 Rc8 12.Rb1 Qa5 13.Ne2=; A5) 7...cb5 8.ab5 a6 9.Nf3 Bd7 10.0–0 0–0 11.Nbd2 Qe7 12.Ne5 Bb4 13.Qe2+=; A6) 7...a6 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Nc3 Qa5 12.0–0 Bd7 13.e4=; B) 7.Ba3 e5 8.Bd6 (8.Nf3 e4 9.Ne5 Be5 10.de5 Ng4 11.Bb2 Qh4 12.g3 Qg5 13.c4–/+; 8.Be2 a6 9.Nf3 e4 10.Nfd2 0–0 11.0–0 b6 12.Bd6 Qd6 13.ba6=; 8.c3 Bc7 9.Be2 e4 10.Nd2 a6 11.bc6 Nc6 12.Rb1 Rb8 13.Rb2+=; 8.Bd3 e4 9.Bd6 Qd6 10.Be2 0–0 11.Nd2 Be6 12.Rb1 c5 13.Nb3+=) 8...Qd6 9.Nf3 e4 10.Ne5 Nbd7 11.bc6 bc6 12.Nd7 Bd7 13.c4=; C) 7.Nf3 C1) 7...Nbd7 8.Be2 (8.c4 c5 9.dc5 Nc5 10.cd5 ed5 11.Be2 0–0 12.0–0 Re8 13.a5=; 8.Bd3; 8.Nbd2) 8...Qa5 9.Nbd2 0–0 10.0–0 Qc7 11.c4 b6 12.a5 ba5 13.c5+=; C2) 7...0–0 8.Ba3 (8.Bd3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Bd7 13.Bd3=; 8.c4 b6 9.Ba3 a6 10.c5 bc5 11.dc5 Be7 12.b6 Nbd7 13.Qc2=; 8.Be2 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Bd7 13.Bd3=) 8...Ba3 9.Ra3 a6 10.bc6 Nc6 11.Bd3 b6 12.0–0 Nb4 13.Ne5=; C3) 7...Qa5 8.Nbd2 (8.Bc3; 8.Qd2; 8.c3) 8...Nbd7 9.Bd3 c5 10.dc5 Nc5 11.0–0 0–0 12.Bf6 gf6 13.Nb3=; C4) 7...Ne4 8.Ba3 (8.Nbd2 Nd2 9.Qd2 a6 10.c4 dc4 11.Bc4 ab5 12.ab5 Ra1 13.Ba1=; 8.Be2 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Nbd2 Nd2 13.Nd2=; 8.Nfd2 f5 9.Ba3 0–0 10.Bd6 Qd6 11.Bd3 e5 12.0–0 ed4 13.ed4=; 8.Bd3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Bd7 13.Bd3=) 8...Qa5 9.c3 Bd7 10.Bd3 cb5 11.ab5 0–0 12.Be4 de4 13.Ng5+=; C5) 7...Bd7 8.Ba3 (8.Bd3; 8.c4; 8.Be2; 8.Ne5) 8...Ne4 9.Bd3 Qa5 10.Nfd2 Nd2 11.Qd2 Qd2 12.Nd2 Bc7 13.e4+=; C6) 7...a6 8.c4 (8.Be2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Nc6 13.0–0=) 8...b6 9.Nc3 0–0 10.Bd3 dc4 11.Bc4 Bb7 12.0–0 Qc7 13.Bd3=.

6.d4 Be7 A) 7.Bd3 A1) 7...Nbd7 8.Nf3 (8.Nd2 c5 9.dc5 Nc5 10.Ngf3 Bd7 11.0–0 0–0 12.Nb3 Nd3 13.Qd3=; 8.Ne2 c5 9.dc5 Nc5 10.0–0 0–0 11.Nd2 Bd6 12.Nf3 Nfe4 13.c4=) 8...c5 9.dc5 Nc5 10.0–0 0–0 11.Bd4 a6 12.Nc3 b6 13.Qe2=; A2) 7...Qa5 8.Nd2 (8.Qd2 Qc7 9.Ba3 e5 10.de5 Qe5 11.Qc3 Qg5 12.g3 Ba3 13.Ra3=; 8.Bc3) 8...Nbd7 9.Ngf3 c5 10.c4 cd4 11.Bd4 dc4 12.Bc4 0–0 13.0–0+=; A3) 7...Bd7 8.Ba3 (8.Nf3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nbd2 0–0 13.Ne5+=; 8.Ne2 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nf4 b4 13.Qf3+=; 8.Nh3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nf4 b4 13.Qf3+=) 8...a6 9.Be7 Qe7 10.bc6 Nc6 11.Nf3 e5 12.de5 Ne5 13.Nbd2=; A4) 7...0–0 8.Ne2 (8.Nf3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Qa5 13.Nc3+=; 8.Ba3 a6 9.Be7 Qe7 10.Nd2 c5 11.dc5 Nbd7 12.Ngf3 Nc5 13.0–0+=; 8.Qf3 Qa5 9.Bc3 Qc7 10.Ne2 Bd6 11.Nf4 Nbd7 12.0–0 e5 13.de5+=; 8.Nd2 a6 9.Ngf3 Bd7 10.Ne5 ab5 11.ab5 Ra1 12.Qa1 cb5 13.0–0+=; 8.Nh3 Bd6 9.Nf4 a6 10.bc6 Nc6 11.0–0 Qc7 12.Qf3 Re8 13.Nh5=) 8...Bd6 9.Ba3 e5 10.Bd6 Qd6 11.de5 Qe5 12.Nd2 Bg4 13.0–0=; A5) 7...Qc7 8.Nf3 (8.Ba3 e5 9.Be7 Qe7 10.de5 Qe5 11.Ra3 Bg4 12.Nf3 Qh5 13.Nbd2=; 8.Nd2 a6 9.Ngf3 0–0 10.c4 dc4 11.Bc4 ab5 12.ab5 Ra1 13.Qa1=) 8...a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nc3 b4 13.Nb5=; A6) 7...a6 8.Nf3 (8.Ne2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Nc6 13.Bc3+=; 8.Nd2 ab5 9.ab5 Ra1 10.Qa1 cb5 11.Ngf3 b4 12.e4 de4 13.Ne4+=; 8.Nh3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Qc7 13.0–0+=; 8.Qf3 Qa5 9.Nc3 Qb4 10.Rb1 ab5 11.Ba1 Qa5 12.ab5 Bb4 13.Kd2–/+; 8.Nc3 Qc7 9.Nf3 cb5 10.ab5 Bb4 11.0–0 Bc3 12.b6 Qb6 13.Bc3=) 8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Nc6 13.0–0=; B) 7.Ba3 B1) 7...0–0 8.Be7 (8.Bd3 a6 9.Be7 Qe7 10.Nd2 c5 11.dc5 Nbd7 12.Ngf3 Nc5 13.0–0+=; 8.Nf3 Ba3 9.Ra3 a6 10.bc6 Nc6 11.Bd3 Qa5 12.Qd2 Qc7 13.0–0=) 8...Qe7 9.Nf3 c5 10.dc5 Qc5 11.Bd3 e5 12.Ne5 a6 13.ba6+/–; B2) 7...Bd7 8.Be7 (8.Bd3 Ba3 9.Ra3 a6 10.bc6 Nc6 11.Nf3 Qa5 12.Nbd2 Nb4 13.0–0=; 8.c3 Ba3 9.Ra3 0–0 10.Bd3 a6 11.Nf3 ab5 12.ab5 Ra3 13.Na3=; 8.Nd2 Ba3 9.Ra3 Qa5 10.c3 0–0 11.Ngf3 cb5 12.Qb3 ba4 13.Qb7–/+) 8...Qe7 9.Nd2 0–0 10.Ngf3 c5 11.Be2 c4 12.0–0 a6 13.b6=; B3) 7...a6 8.ba6 (8.Be7 Qe7 9.Nd2 e5 10.de5 Qe5 11.Ngf3 Qc3 12.bc6 Nc6 13.Bd3+=; 8.bc6 Nc6 9.Be7 Qe7 10.Nf3 0–0 11.Bd3 e5 12.de5 Ne5 13.0–0=) 8...Na6 9.Be7 Qe7 10.Nf3 0–0 11.a5 Bd7 12.Be2 c5 13.0–0=; B4) 7...Qa5 8.c3 (8.Nd2 Ba3 9.Ra3 0–0 10.Ngf3 Bd7 11.bc6 Nc6 12.Bd3 Nb4 13.0–0=) 8...Ba3 9.Ra3 Nbd7 10.Nf3 c5 11.Bd3 0–0 12.0–0 c4 13.Bc2=; B5) 7...Ba3 8.Ra3 (8.Na3 Ne4 9.Bd3 Qa5 10.Kf1 0–0 11.Be4 de4 12.c4 Nd7 13.Qc2=) 8...a6 9.ba6 b6 10.a5 ba5 11.Qd2 Qb6 12.Rb3 Qc7 13.Ra3=; B6) 7...Nbd7 8.Be7 Qe7 9.Nf3 e5 10.Be2 0–0 11.0–0 e4 12.Nfd2 c5 13.a5=; C) 7.Be2 C1) 7...Qa5 8.Qd2 (8.Nd2 Bd7 9.Bd3 Ne4 10.Be4 de4 11.Qg4 Bb4 12.Rd1 Bf8 13.Qe4=; 8.Bc3 Qc7 9.Nf3 Ne4 10.Bb2 Bb4 11.Nfd2 0–0 12.0–0 Nd2 13.Nd2=) 8...Qc7 9.Nf3 0–0 10.0–0 a6 11.Ba3 Ne4 12.Qd3 Nd6 13.bc6=; C2) 7...Ne4 8.Nf3 (8.Nd2) 8...Qa5 9.c3 0–0 10.0–0 c5 11.c4 Rd8 12.cd5 ed5 13.dc5+=; C3) 7...0–0 8.Ba3 (8.Nf3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Qa5 13.Nc3+=; 8.Nh3 Qc7 9.0–0 Bd6 10.f4 a6 11.Ba3 c5 12.Nd2 b6 13.Bf3+=) 8...Qa5 9.c3 Re8 10.Nf3 Nbd7 11.0–0 c5 12.c4 cd4 13.Be7=; C4) 7...Bd7 8.c4 (8.Bd3 cb5 9.ab5 Qb6 10.Qe2 Na6 11.Ba3 Nb4 12.Bb4 Bb4 13.c3=; 8.Nf3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bd3 b4 13.Ne5+=; 8.Nh3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bd3 0–0 13.Nf4+=) 8...a6 9.ba6 Na6 10.Nf3 dc4 11.Bc4 0–0 12.0–0 Nb4 13.Ne5=; C5) 7...Nbd7 8.Nd2 (8.Nf3 0–0 9.0–0 a6 10.Ba3 c5 11.c4 b6 12.Nbd2 Bb7 13.cd5=) 8...a6 9.Ngf3 cb5 10.ab5 0–0 11.0–0 Ne4 12.c4 Nd2 13.Qd2+=; C6) 7...a6 8.bc6 (8.Nf3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Nc6 13.0–0=) 8...Nc6 9.Nf3 0–0 10.0–0 b6 11.Ba3 Bb7 12.Be7 Qe7 13.Bd3=; D) 7.Nd2 D1) 7...a6 8.c4 (8.Bd3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Be2 0–0 13.Ngf3=; 8.bc6 Nc6 9.Ba3 e5 10.de5 Ne5 11.Be7 Qe7 12.Ngf3 Bg4 13.Be2=; 8.Be2 ab5 9.ab5 Ra1 10.Qa1 cb5 11.Bb5 Bd7 12.Be2 0–0 13.Ngf3=; 8.ba6 b6 9.Ba3 Ba6 10.c4 Ba3 11.Ra3 dc4 12.Nc4 Qd5 13.Nd2+=; 8.Ngf3 0–0 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Bb5 Qc7 13.c4=) 8...0–0 9.bc6 Nc6 10.Ngf3 b6 11.Ba3 Bb7 12.Be7 Ne7 13.Bd3=; D2) 7...0–0 8.Bd3 (8.Ngf3 a6 9.Bd3 Bd7 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Rb1+=; 8.Ba3 Ba3 9.Ra3 Qa5 10.Ngf3 Bd7 11.bc6 Nc6 12.Be2 Ne4 13.Bd3=; 8.c4 a6 9.Ngf3 ab5 10.ab5 Ra1 11.Qa1 Bd7 12.bc6 Bc6 13.Ne5=; 8.Be2 Bd7 9.Ba3 Ba3 10.Ra3 Qa5 11.bc6 Bc6 12.Ngf3 Rc8 13.c3=; 8.Nh3 a6 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Bb5 Qc7 13.c4+=) 8...a6 9.Ngf3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Bb5 Qc7 13.c4=; D3) 7...Nbd7 8.c4 (8.Ngf3 0–0 9.Be2 Qc7 10.0–0 c5 11.dc5 Rd8 12.c6 bc6 13.c4=; 8.Bd3; 8.Be2; 8.Ba3) 8...0–0 9.Ngf3 c5 10.Be2 cd4 11.Bd4 Qc7 12.cd5 e5 13.Rc1+/–; D4) 7...b6 8.Ngf3 (8.Bd3 a6 9.Ngf3 Bd7 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Ne5=) 8...a6 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Bb5 Bd7 13.Bd3=; D5) 7...Bb4 8.Bd3 (8.Ngf3 Ne4 9.Bd3 Qa5 10.c4 Nd2 11.Nd2 dc4 12.Bc4 a6 13.Bd3=; 8.c3; 8.Be2) 8...Qa5 9.Ngf3 Ne4 10.c4 0–0 11.Ba3 Nd2 12.Nd2 Ba3 13.Ra3=; D6) 7...Bd7 8.Ba3 (8.Ngf3 0–0 9.Bd3 a6 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Rb1+=) 8...Ba3 9.Ra3 Qa5 10.bc6 Bc6 11.Ngf3 0–0 12.Bd3 Rc8 13.c3=; E) 7.Nf3 E1) 7...Qa5 8.c3 (8.Bc3 Qc7 9.Bd3 Nbd7 10.0–0 0–0 11.Bb2 c5 12.dc5 Bc5 13.Nbd2=; 8.Qd2 Qc7 9.Bd3 Ne4 10.Qe2 a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1=; 8.Nfd2 0–0 9.Bd3 Nbd7 10.0–0 Qc7 11.c4 Bd6 12.f4 c5 13.Qf3=; 8.Nbd2 Ne4 9.Bd3 Bb4 10.c4 Nd2 11.Nd2 Bd7 12.cd5 ed5 13.Qc2=) 8...c5 9.dc5 Bc5 10.Nbd2 Be7 11.c4 0–0 12.Rc1 Nbd7 13.Bc3=; E2) 7...Nbd7 8.Nbd2 (8.Bd3 c5 9.dc5 Nc5 10.0–0 0–0 11.Be5 Nfe4 12.a5 f6 13.Bb2+=; 8.Be2 0–0 9.0–0 a6 10.Ba3 c5 11.c4 b6 12.Nbd2 Bb7 13.cd5=; 8.c4) 8...0–0 9.Be2 cb5 10.ab5 a6 11.0–0 Ne4 12.c4 Nd2 13.Qd2+=; E3) 7...Bd7 8.Be2 (8.Ne5 Qa5 9.Bc3 Qb6 10.a5 Qd8 11.a6 b6 12.Nd7 Qd7 13.bc6=; 8.Bd3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nbd2 0–0 13.Ne5+=; 8.c4) 8...a6 9.ba6 Na6 10.0–0 0–0 11.Ne5 Qa5 12.Nd2 Qc7 13.c4=; E4) 7...0–0 8.Ne5 (8.Be2 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Qa5 13.Nc3+=; 8.Ba3 a6 9.Be7 Qe7 10.Nbd2 c5 11.Be2 Qc7 12.dc5 ab5 13.ab5=; 8.c4 a6 9.Nc3 Qa5 10.Qc2 Bb4 11.Nd2 Nbd7 12.Bd3 e5 13.0–0=; 8.Bd3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Qa5 13.Nc3+=; 8.Nbd2) 8...Ne4 9.Bd3 f6 10.Nf3 c5 11.0–0 a6 12.c4 Nd6 13.Nbd2+=; E5) 7...a6 8.Be2 (8.Bd3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Nc6 13.0–0=) 8...ab5 9.ab5 Ra1 10.Ba1 Bd7 11.bc6 Nc6 12.0–0 0–0 13.c4=; E6) 7...Qb6 8.Ba3 (8.Bd3 Bd7 9.Qe2 cb5 10.ab5 Na6 11.Ne5 Nb4 12.Nd7 Nd7 13.0–0=) 8...Ba3 9.Ra3 Bd7 10.c4 dc4 11.Bc4 cb5 12.ab5 Bb5 13.Qb3=.

6.d4 Bf8 A) 7.Nf3 A1) 7...a6 8.Bd3 (8.Nbd2 Bd6 9.c4 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Qa1 Bd7 13.bc6=; 8.Be2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Bd6 13.0–0=; 8.Ne5 ab5 9.ab5 Ra1 10.Ba1 Ne4 11.c3 Bd6 12.Bd3 Qg5 13.0–0=) 8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Bd6 13.0–0=; A2) 7...Qa5 8.Bc3 (8.Nbd2; 8.c3; 8.Qd2) 8...Qc7 9.Bd3 Bd6 10.0–0 Nbd7 11.Bb2 0–0 12.Nbd2 Ng4 13.h3=; A3) 7...Bb4 8.c3 Bd6 9.Ba3 Ba3 10.Ra3 0–0 11.Bd3 c5 12.dc5 Qe7 13.c4=; A4) 7...Nbd7 8.Nbd2 (8.Bd3 Bb4 9.Nbd2 c5 10.c3 Ba5 11.c4 cd4 12.Bd4 e5 13.Ne5=) 8...Bd6 9.c4 c5 10.dc5 Nc5 11.cd5 ed5 12.Be2 0–0 13.0–0+=; A5) 7...cb5 8.ab5 (8.Bb5 Bd7 9.Ba3 Bb5 10.Bf8 Bf1 11.Bg7 Bg2 12.Rg1 Bf3 13.Qf3=) 8...Bb4 9.Bc3 Bd6 10.Bd3 0–0 11.0–0 Qc7 12.Ra4 a5 13.Bb2=; A6) 7...Bd7 8.c4 (8.Ne5 a6 9.Bd3 ab5 10.ab5 Ra1 11.Ba1 cb5 12.0–0 Bd6 13.Bb2=; 8.Bd3 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nbd2 Na6 13.Ne5=; 8.Nbd2 a6 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Ne5 Bd6 13.Qa7=) 8...Ne4 9.Bd3 Bb4 10.Nbd2 Nd2 11.Nd2 dc4 12.Bc4 Qa5 13.Bd3=; B) 7.Bd3 B1) 7...Bb4 8.c3 Bd6 9.Ba3 Ba3 10.Ra3 0–0 11.Nf3 c5 12.dc5 Qc7 13.0–0+=; B2) 7...a6 8.Nf3 (8.Nd2 ab5 9.ab5 Ra1 10.Ba1 Bd6 11.Ngf3 cb5 12.Bb5 Bd7 13.Bd3=; 8.Ne2 ab5 9.ab5 Ra1 10.Ba1 cb5 11.0–0 b4 12.f3 Be7 13.e4+=) 8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Bd3 Bd6 13.0–0=; B3) 7...Qa5 8.Qd2 (8.Bc3; 8.Nd2; 8.c3) 8...Qc7 9.Ne2 Nbd7 10.bc6 Qc6 11.Qc3 Ne4 12.Be4 de4 13.Ba3=; B4) 7...cb5 8.ab5 Bb4 9.Bc3 Bd6 10.Nf3 0–0 11.0–0 a5 12.ba6 ba6 13.Ba5=; B5) 7...Ne4 8.Ba3 Ba3 9.Ra3 e5 10.Nf3 ed4 11.ed4 Bg4 12.0–0 0–0 13.Re1=; B6) 7...Bd7 8.Nf3 (8.Ba3 Ba3 9.Ra3 a6 10.bc6 Nc6 11.Nf3 Qa5 12.Nbd2 Nb4 13.0–0=; 8.Ne2 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.f3 Bd6 13.Nd2+=; 8.Nd2 a6 9.Ngf3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Ne5 Bd6 13.Qa7=) 8...a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nbd2 Na6 13.Ne5=; C) 7.Be2 C1) 7...a6 8.Nf3 (8.Nd2 ab5 9.ab5 Ra1 10.Ba1 Bd6 11.Ngf3 cb5 12.Bb5 Bd7 13.Bd3=; 8.bc6 Nc6 9.Nf3 Bb4 10.Nbd2 Ne4 11.0–0 Nc3 12.Bc3 Bc3 13.Ra2=) 8...ab5 9.ab5 Bb4 10.Nbd2 Ra1 11.Qa1 Ne4 12.Qa4 Qe7 13.Qb3=; C2) 7...Qb6 8.c4 (8.Ba3 Ba3 9.Ra3 Bd7 10.a5 Qc7 11.b6 Qd8 12.ba7 Ra7 13.Qd2=) 8...cb5 9.ab5 dc4 10.Bc4 Bd7 11.Qa4 Bd6 12.Ba3 0–0 13.Bd6=; C3) 7...Ne4 8.Nf3 Qa5 9.c3 Bd6 10.0–0 0–0 11.c4 Nd7 12.Qc2 Qc7 13.c5+=; C4) 7...Qa5 8.Nd2 (8.Bc3 Qc7 9.Nf3 Ne4 10.Bb2 Bb4 11.Nbd2 Nc3 12.Bc3 Bc3 13.Ra3=) 8...Bd7 9.Ngf3 Be7 10.0–0 0–0 11.c4 Rc8 12.Nb3 Qd8 13.c5+=; C5) 7...Bd7 8.Nf3 cb5 9.ab5 Qb6 10.Nc3 Bb4 11.0–0 Bc3 12.Bc3 Bb5 13.Qb1=; C6) 7...cb5 8.ab5 Bb4 9.Bc3 Bd6 10.Nf3 0–0 11.0–0 Qc7 12.Bd3 a5 13.ba6=; D) 7.Ba3 D1) 7...Qa5 8.c3 (8.Nd2 Ba3 9.Ra3 Bd7 10.bc6 Bc6 11.Bd3 Ba4 12.Qa1 b5 13.Bb5=) 8...Ba3 9.Ra3 Nbd7 10.Nf3 c5 11.Bd3 0–0 12.0–0 c4 13.Bc2=; D2) 7...Ba3 8.Ra3 (8.Na3 Ne4 9.Bd3 Qa5 10.Kf1 0–0 11.Be4 de4 12.c4 Nd7 13.Qc2=) 8...a6 9.ba6 b6 10.a5 ba5 11.Qd2 Qb6 12.Rb3 Qc7 13.Ra3=; E) 7.Nd2 E1) 7...Bb4 8.c3 (8.Ngf3 Ne4 9.Bd3 Qa5 10.c4 a6 11.Be4 de4 12.Ng5 f5 13.bc6=; 8.Bd3 Qa5 9.Ngf3 Ne4 10.c4 Nd2 11.Nd2 dc4 12.Bc4 a6 13.Bd3=; 8.Be2 a6 9.Ngf3 ab5 10.ab5 Ra1 11.Qa1 Ne4 12.Qa4 Qe7 13.Qb3=) 8...Bd6 9.Ba3 Ba3 10.Ra3 Qe7 11.Rb3 0–0 12.Ngf3 c5 13.dc5=; E2) 7...Bd6 8.Ba3 e5 9.Bd6 Qd6 10.de5 Qe5 11.Ngf3 Qc3 12.Bd3 Nbd7 13.0–0=; E3) 7...Qa5 8.Ngf3 Bb4 9.c4 0–0 10.Bd3 Ne4 11.Ba3 Nd2 12.Nd2 Ba3 13.Ra3=; E4) 7...a6 8.ba6 (8.Bd3 Bd6 9.Ngf3 ab5 10.ab5 Ra1 11.Ba1 cb5 12.0–0 b4 13.e4=; 8.Be2 ab5 9.ab5 Ra1 10.Qa1 cb5 11.Bb5 Bd7 12.Be2 b5 13.Ngf3=; 8.Ngf3 ab5 9.ab5 Ra1 10.Qa1 Bd7 11.Bd3 cb5 12.Ne5 Bd6 13.Qa7=) 8...Na6 9.Ngf3 Qa5 10.Ba3 Ba3 11.Ra3 0–0 12.Be2 Ne4 13.Bd3=; E5) 7...Be7 8.Ngf3 (8.Bd3 a6 9.Ngf3 Bd7 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Rb1=; 8.Ba3 Ba3 9.Ra3 0–0 10.Ngf3 Qa5 11.bc6 Nc6 12.Bd3 b6 13.Bb5=; 8.Be2 Bd7 9.Ba3 Ba3 10.Ra3 Qa5 11.bc6 Bc6 12.Ngf3 Nbd7 13.0–0=; 8.c4 a6 9.Ngf3 0–0 10.bc6 Nc6 11.Ba3 Ba3 12.Ra3 b6 13.Bd3=; 8.Nh3 a6 9.Bd3 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Bd7 13.Bd3=) 8...a6 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Bb5 Bd7 13.Be2=; E6) 7...Bd7 8.c4 (8.Ngf3 a6 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.0–0 Na6 13.Ne5=; 8.Bd3 a6 9.Ngf3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Qa8 Qc7 13.0–0=; 8.Ba3 Ba3 9.Ra3 Qa5 10.bc6 Bc6 11.Ngf3 0–0 12.Bd3 Rc8 13.c3=) 8...Bb4 9.Ngf3 a6 10.bc6 Bc6 11.Be2 dc4 12.Bc4 Nbd7 13.0–0=; F) 7.c4 F1) 7...Ne4 8.c5 (8.Nc3 Bb4 9.Rc1 Qa5 10.Qb3 0–0 11.Bd3 dc4 12.Bc4 Nd6 13.Bd3+=; 8.Bc3 a6 9.ba6 b6 10.Bd3 Nc3 11.Nc3 dc4 12.Bc4 Ba6 13.Ba6=; 8.Qb3 Qh4 9.Qc2 Bb4 10.Nc3 Qg4 11.Nf3 0–0 12.Ne5 Qg5 13.h4=; 8.Qc2 Bb4 9.Nc3 Qa5 10.Rc1 Bd7 11.Nge2 a6 12.bc6 Bc6 13.cd5+=) 8...Qa5 9.Nd2 e5 10.Ngf3 ed4 11.ed4 Be7 12.Bd3 Bf6 13.Qc2+=; F2) 7...dc4 8.Nc3 (8.Bc4 a6 9.Nf3 Bb4 10.Nbd2 ab5 11.ab5 Ra1 12.Qa1 Ne4 13.bc6=; 8.Qc2) 8...cb5 9.ab5 Bd6 10.Nf3 Qc7 11.Qa4 Nbd7 12.Qc4 Qd8 13.Bd3+=; F3) 7...Be7 8.Nc3 (8.Ba3 Qa5 9.Nd2 Ba3 10.Ra3 0–0 11.Ngf3 cb5 12.cb5 a6 13.Ne5=; 8.Nf3 0–0 9.Bd3 dc4 10.Bc4 a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1=) 8...Bb4 9.Qb3 Qa5 10.Bd3 dc4 11.Bc4 Nd5 12.Nge2 0–0 13.0–0+=; F4) 7...Qc7 8.Nf3 Ne4 9.Nbd2 Bb4 10.Bd3 Nd2 11.Nd2 dc4 12.Bc4 a6 13.0–0+=; F5) 7...Bd7 8.Nf3 Ne4 9.Bd3 Bb4 10.Nbd2 Nd2 11.Nd2 dc4 12.Bc4 a6 13.ba6=; F6) 7...a6 8.bc6 (8.Nc3 Bb4 9.Qb3 Qa5 10.bc6 Nc6 11.Rc1 Bd7 12.Nf3 Nd8 13.Nd2=; 8.Qb3 Ne4 9.ba6 Qa5 10.Nc3 b6 11.a7 Nd7 12.f3 Nef6 13.Bd3=; 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 Ne4 11.Qa4 Bd7 12.Bd3 cb5 13.cb5=; 8.c5 ab5 9.ab5 Ra1 10.Ba1 b6 11.bc6 bc5 12.Qa4 Qc7 13.dc5=; 8.ba6 b6 9.a5 ba5 10.Bc3 Ba6 11.Ba5 Qc8 12.Bc3 Nbd7 13.Nf3=) 8...Nc6 9.Nf3 Bb4 10.Bc3 Be7 11.cd5 ed5 12.Bd3 0–0 13.0–0=.

6.Nf3 0–0 7.c4 dc4 8.Bc4 cb5 9.ab5 Bd7 10.d4 Bb4 11.Bc3 Bd6 12.Ne5 Be5 (12...Nd5 13.Bd3=) 13.de5+= Ne4 14.0–0 Qc7 15.Qd3 Nc3 16.Nc3 (16.Qc3 Rc8 17.Rc1=) 16...Qc5 Attacks the isolani on b5 (better is 16...Rc8!? 17.b6 Qb6=) 17.f4 Rc8 18.Ra4 a6 19.Ne4 Qb6 20.Nd6 Rc5 21.Rb1 a5 22.Qe2 Nc6 (better is 22...Rc7+/–) 23.Qd3 (23.Ne4!? Rc4 24.Rc4 Nb4+–) 23...Ne7 (23...Nb8 24.Qe4 Rc7+–) 24.Nf7?? (better is 24.Qd4 Nd5 25.f5+/–) 24...Kf7–/+ 25.Qd7 Rd8 26.Be6? (26.Qe6 Qe6 27.Be6 Ke6 28.Ra5–+) 26...Kf8–+ 27.Qd8 Qd8 28.Rd4 Qb6 29.Rd6 Qc7 (29...Nc6!? 30.Kf2–+) 30.Rbd1 (better is 30.Rd7 Qb8 31.Rbd1–+) 30...g6?? (better is 30...Rc1 31.Rc1 Qc1 32.Kf2 Qb2 33.Kf3 Ng6–+) 31.Rd8 (better is 31.b6!? Qc6 32.Rc6 Rc6 33.Rd8 Kg7 34.Rd6+–) 31...Kg7+/– 32.R8d7 Qd7?? (better is 32...Qb6 33.Re7 Kf8 34.Rf7 Ke8+/–) 33.Rd7+– (33.Bd7?! Nd5+–) 33...Kf8 34.Rb7 Rc1 35.Kf2 Rc2 36.Kf3 a4 (36...Rc5 37.g4 h5 38.gh5 gh5 39.Ke4+–) 37.Rb8 Kg7 38.Ra8 (38.e4 Rc3 39.Ke2 a3+–) 38...Rb2 (38...Rc5 39.Ra7 Kf8 40.b6+–) 39.Bd7 (better is 39.Re8!? Nf5 40.Rg8 Kh6 41.Bf5 gf5+–) 39...Nd5 40.Ra4 Nc3 (40...Rb3 41.Ra7 Kh8 42.Bc6 Ne3 43.e6 Nf5 44.Kg4+–) 41.Ra7 1–0. Baer,Cy (1895) – Pieleck,Rudi (1770), RSX5E – Light–1, 2007.

6.Nf3 0–0 7.c4 Nbd7 8.Be2 Nb6 9.d3 (9.cd5 Nbd5 10.Qc1 Bd6=) 9...dc4+= 10.dc4 Qd1 11.Kd1 Ne4 12.Ke1 Nd6 (12...Rd8!? 13.Kf1 cb5 14.cb5 Nd5=) 13.Nbd2+= Rd8 14.a5 Nd7 15.Ne5 (15.bc6!? bc6 16.Nd4+=) 15...Ne5 16.Be5 Bb4 17.Bd6 Rd6 (17...Bd6?! 18.Bd3=) 18.Ra2 cb5 19.cb5 e5 20.Bc4 Be6 21.Be6 fe6?? (better is 21...Rad8 22.Bg4 Rd2 (22...Bd2?! 23.Ke2=) 23.Rd2 Rd2–/+ (23...Bd2?! 24.Ke2=)) 22.Ke2+/– Rad8 23.Ne4 Rd5 24.b6 (24.Rb1 Be7+/– (24...Rb5? 25.Ra4+–)) 24...a6 25.Rc1 (25.Rha1 Rc8+=) 25...Ba5 (25...Ra5!? 26.Ra5 Ba5=) 26.Rc7+= Bb6 (26...Rb8!? 27.Rb2 Rdd8+=) 27.Rb7+/– Ba5 28.Ra7 Bb4 29.R2a6 R8d7 30.Rd7 Rd7 31.Re6 Re7 32.Re7 Be7 33.Kd3 Bf6? (better is 33...Kf7!?+/–) 34.Kc4 Kf7 35.Kd5 Ke7 36.Nc5 (36.Nf6 gf6 37.g4 Kf7+–) 36...h6 37.Nd3 e4 38.Ke4 Ke6 39.f3 g5 40.Nc5 Kf7 41.Kf5 Ke7 (41...Be7 42.Ne6+–) 42.Kg6 Be5 43.h3 Bd6 (43...Bh2 44.Kh6 Bg1 45.Ne4+–) 44.Ne4 (44.Ne4 Bc7 45.Kh6+–; worse is 44.Kh6 Bc5 45.Kg5 Be3 46.f4 Kf7+–) 1–0. mr5reasons1 (1680) – paulatica, gameknot.com, 2012.

6.Nf3= 0–0 7.d4 Bd6 8.Ba3 =.

6.Nf3= Bd7 7.Bd3 (7.Be2 a6=) 7...a6 8.Nc3 (8.0–0 0–0=) 8...b6 (8...0–0 9.Ne5=) 9.Ne5 (9.Qe2 ab5 10.ab5 Ra1 11.Ba1 0–0=) 9...d4 (9...Qc7!? 10.Ng4 Be7=) 10.Ne4+= de3 11.de3 (worse is 11.fe3 Ne4 12.Qg4 Nd6–/+; worse is 11.Nd7 A) worse is 11...Nbd7 12.Nf6 (12.fe3? Ne4 13.Qf3 Ng5–+) 12...Nf6 13.fe3+=; B) 11...ef2 12.Nf2 Qd7+=) 11...Ne4 (11...ab5 12.Nf6 gf6 13.Nd7 Nd7 14.ab5 Ra1 15.Qa1 Bb4 16.Ke2 c5+/–) 12.Be4+/– ab5 13.ab5 Ra1 14.Ba1 cb5 15.Qg4 (better is 15.Nd7 Nd7 16.Bg7+/–) 15...0–0?? (better is 15...Bb4 16.Ke2 Bf8+/–) 16.Nc6! e5 (16...Nc6 17.Qg7 Mate attack; 16...Bc6 17.Qg7 Mate attack) 17.Qh5 (17.Nd8 Bg4 18.Nb7 Bb4 19.c3 Be7+=) 17...g6 (17...Bb4 18.Kf1 h6 19.Nd8 Rd8 20.Be5+–) 18.Qe5 (18.Qe5 f6 19.Qd5 Kg7 20.Nd8 Rd8 21.Qb7+–; 18.Nd8 gh5 19.Nb7 Bc6 20.Nc5 bc5+=) 1–0. pcmvr (2530) – tata (2085), net–chess.com, 2006.

6.f4 0–0 7.Nf3 a6 8.c4 (8.Be2 Bd7=) 8...ab5 9.ab5 Ra1 10.Ba1 Qb6 (10...dc4 11.Bc4 cb5 12.Bb5=) 11.Nc3 (11.Bf6 gf6 12.bc6 bc6 13.cd5 cd5=) 11...cb5 12.cb5 Rd8 (12...Be7 13.Be2=) 13.Be2 (better is 13.Na4 Qc7 14.Nc5 Qc5 15.Bf6 gf6 16.d4 Qb4 17.Qd2 Qb1 18.Kf2+/–) 13...d4? (better is 13...Be7=) 14.Na4+– Qd6 15.Nc5 Qc5 16.Bd4 Qh5 (16...Qf5 17.0–0+–) 17.0–0 Nbd7 (17...Nd5 18.Ng5 Qh4 19.Bh5+–) 18.Ne5 Qh6 19.Rf3 g6 (19...Ne5 20.fe5 Nd5 21.Qf1+–) 20.Qe1 Ne5 21.Be5 Nd7 22.Rh3 Qf8 23.Qh4 h5 (23...h6 24.Bd6 g5 25.fg5 Qd6 26.gh6 Qf8 27.h7 Kh8+–) 24.Bh5! Ne5 25.Bg6 Kg7 26.fe5 1–0. spblex (2375) – johnrbrown (2295), net–chess.com, 2009.

6.f4 0–0 7.Nf3 Ne4 8.Be2 Nd7 9.0–0 cb5 10.ab5 Nb6 11.Qe1 Bd7 12.Kh1 Nc4 13.Bc4 dc4 14.d3 cd3 15.cd3 Nf6 16.Nc3 Bb4 17.Ne5 Bb5 18.Qg3 Bd3?? 19.Rfd1+/– Bc3 20.Rd3?? Ne4 21.Qf3 Qc7?? 22.Bc3 Nc3 23.Rc1 f6? 24.Ng4 f5 25.Ne5 Qa5 26.Rdc3 Rad8 27.h3 Rd2 28.R3c2 Rfd8 29.Qb7 Rc2 30.Rc2 Qe1 31.Kh2 Qe3 32.Qf7 (32.Qf7 Kh8 33.Rc4+–) 1–0. elsh1403 – lenja, kurnik, 2011.

5.e3 Bd6

6.Na3 Qc7 7.c4 Nbd7 8.Nf3 Nc5 9.d4 Nce4 10.c5 Be7 11.Nd2 Bd7 12.Be2 b6 13.cb6 ab6 14.bc6 Bc6 15.Rc1 Qd7? 16.Nb5?? Nd2–/+ 17.Kd2 Ne4 18.Ke1=+ 0–0 19.f3 Nd6 20.Qb3 Nb5 21.ab5 Bb7 22.Kf2 Ra5 23.Rc2 Rfa8 24.Rhc1 R5a7 25.Rc7 Qd6 26.R1c3?? Bf6 27.Qc2 Qh2 28.Rc8 Bd8 29.Rd8 Rd8 30.Rc7 h5 31.Qb3 h4 32.Ba3 Qc7 33.f4 g5! 34.g3 hg3 35.Kg3 gf4 36.ef4 f6 37.Bc1 Kf7 38.Bh5 Ke7 39.Ba3 Rd6! 40.Bd6 Qd6 41.Qd3 Ra3 42.Be2 Rd3 43.Bd3 Qa3 44.Kg4 Qd3 45.Kh5 Qd4 46.Kg4 e5 47.Kf5 Qf4 48.Kg6 d4 49.Kh5 Bf3 50.Kg6 Qg5 51.Kh7 Be4 52.Kh8 Qh6 53.Kg8 (53.Kg8 Bd5). poganinbezdom (1625) – zico100 (1720), kurnik, 2011.

6.c4 a6 7.d4 ab5 8.cb5 c5 9.a5 h5 10.b6 h4 11.Nf3 c4 12.Nc3? Bd7 13.h3 Na6 14.Ba3=+ Ba3 15.Ra3 Qe7 16.Qc1 Qb4 17.Ne5 Ke7 18.Be2 g5 19.Nd7 Kd7 20.Ra4 Qb3 21.Bd1+/– Qa4?? 22.Ba4+– Ke7 23.Qa3 Kd8 24.Qd6 Kc8 25.Nb5 g4 26.Qe7 Ne4 27.Nd6 Kb8 28.Qb7 1–0. baovn21 – quickfox (1635), kurnik, 2011.

6.c4 dc4 7.Bc4 0–0 8.f4 Nbd7 9.Nf3 a6 10.0–0 ab5 11.ab5 Ra1 12.Ba1 Nb6 13.Be2 c5 14.d4 Nfd5 15.Qb3?? c4!–+ 16.Qb2 Ne3 17.Re1 Ned5 18.Nc3 Bf4 19.Ne5?? Be5 20.de5 Bd7 21.Bf3? Qh4 22.Rd1 Rc8 23.Nd5 Nd5 24.Qd4 Qd4 25.Bd4 Bb5 26.Bd5 ed5 27.Bb6 Bc6 28.Kf2 Ra8 29.Ke3 Ra2 30.Rg1 Ra3 31.Kd4 Rd3 32.Kc5 c3 33.Rc1 h5 34.Ba5 d4 35.Kc4 Rd2 36.Bb6 Rg2 37.Bd4 c2 38.Kd3 Rh2 39.Rc2 Be4! 40.Ke4 Rc2 0–1. carocan (1750) – nyeki (1760), kurnik, 2011.

6.c4 Nbd7 7.Nf3 Nb6 8.Qc2 0–0?? (better is 8...Nc4 9.Bc4 dc4 10.bc6 bc6=) 9.c5+– Bc5 10.Qc5 Ne4 11.Qc2 Bd7 12.Nc3 cb5 13.ab5 Rc8 (13...Ng5+–) 14.Ra7 Nc4 15.Bc4 (15.Rb7?! Ncd6 16.Ra7 Nb5+–) 15...Rc4 16.d3 (16.d3 Qb6 17.Ra3 Rc3 18.Bc3 (18.Rc3?! Nc3 19.Bc3 Rc8+–) 18...Nc3 19.Rc3 Bb5 20.Qb2+–; worse is 16.Rb7 Nd6 17.Rd7 Qd7+–) 1–0. b4_player – manne, casual, 2013.

6.c4 e5 7.Nf3 e4 8.Nd4 Bg4 9.Qb3 c5 10.Nc2 Be6 11.d4 Nbd7–/+ 12.Ba3 Rc8 13.Nd2 b6 14.Be2 Qe7 15.0–0 0–0 16.cd5 Nd5 17.Bc4 N7f6 18.dc5 Bc5 19.Nd4 Bd4?? 20.Be7+– (20.Be7 Ba1 21.Bf8+– (< 21.Ra1 Rc4 22.Qc4 Ne7+–); 20.ed4?! Qc7 21.Bf8 Rf8+–) 1–0. carocan (1665) – 11darek11, kurnik, 2011.

6.c4 e5 7.Nf3 Bg4 8.Be2 Bf3 9.Bf3 e4 10.Be2 0–0 11.0–0 Nbd7 12.d4 ed3 13.Bd3 Be5 14.Nc3 Nc5 15.Be2 d4 16.ed4 Bd4 17.Qc2 Re8 18.Bf3 Qc7 19.Rad1 Rad8 20.Qf5 Re5 21.Qd3?? Ne6 22.Rd2?? Bf2!–+ 23.Rff2 Rd3 24.Rd3 h6 25.Rfd2?? Re1 26.Kf2 Qe5?? 27.Ne2=+ Re2 28.Re2 Qc5 29.Kf1 Nf4?? 30.Rd8+= Kh7 31.Rc2 Qe3 32.Bf6 gf6 33.bc6 bc6 34.Bc6 Nd3 35.g3?? Qe1?? 36.Kg2+/– Qf1?? 37.Kf1+– (37.Kf1 Ne5 38.Be4 f5 39.Bf5 Kg7 40.c5+–) 1–0. carocan (1735) – stefan0009 (1625), kurnik, 2011.

6.c4 Qe7 7.Qb3 e5 8.Ba3 Ba3 9.Qa3 Qa3 10.Na3 0–0 11.Nf3 Nbd7 12.d4 e4 13.Nd2 Re8 14.g3 Ng4 15.Be2 Nh6 16.0–0 f5 17.Kg2 g5 18.bc6 bc6 19.Rab1 Ba6 20.Rfe1 Rab8 21.c5 Be2=+ 22.Re2 Rb1 23.Ndb1 Rb8 24.a5 Rb3 25.h3 Kf7 26.Kf1 f4 27.gf4 gf4 28.Ke1 Nf5 29.ef4? Nd4 30.Rd2 Nf3 31.Ke2 Nd2 32.Kd2 Nc5 0–1. carocan (1685) – bogdankr (1775), kurnik, 2011.

6.c4 Qe7 7.Nf3 0–0 8.d4 Bb4 9.Nbd2 Ne4 10.Bd3 Bd2 (10...a6!?=) 11.Nd2+/– Nd2 12.Qd2 f5? (better is 12...Qg5 13.f4 Qf6+/–) 13.Ba3+– Qf6 (13...Qg5 14.f4 Qh4 15.g3+–) 14.Bf8 Qf8 15.0–0 Nd7 16.Rfc1 Nf6 17.h3 (17.cd5 cd5 18.Rc7 Ne8+–) 17...Bd7 18.cd5 ed5 (18...Nd5 19.Bc4+–) 19.bc6 bc6 20.Qc2 g6 (20...f4 21.ef4 Qd6 22.f5+–) 21.Rab1 Qd6 22.Qc5 Qc7 23.Rb2 Ne4 (23...f4 24.Qe7 Rf8 25.Qe5+–) 24.Qd5! Kg7 (24...cd5 25.Rc7 Pinning (25.Rc7 Deflection; 25.Rc7 Clearance)) 25.Be4 fe4 (25...cd5?? 26.Rc7 de4 27.Rd7 Kf6 28.Rh7+–) 26.Qe4 Re8 27.Qf4 Qa5 (27...Qf4 28.ef4 Re6+–) 28.Rb7 Qd5 29.Ra7 (better is 29.Rc5 Qe6 30.Re5 Qf7 31.Qf7 Kf7 32.Rd7 Kf8 33.Re8 Ke8 34.Ra7 Kd8+–) 29...g5 (29...Re6 30.Rc5 Qd6 31.d5 Qf4 32.Rd7 Kf6 33.ef4 cd5 34.Rcd5 Re1 35.Kh2+–) 30.Qf3 (30.Qf3 Qf3 31.gf3+–) 1–0. Efimov,Andrey (2055) – Kocharyan,Grant (2045), Kimry–ch, 2003.

6.c4 Qe7 7.Nf3 0–0 8.Be2 e5 9.d4 Nbd7 10.cd5 cd5 11.de5 Ne5 12.0–0 Bf5 13.Nbd2 Nd3 14.Bd4 b6 15.Nb3 Nc5 16.Bb2 Be4 17.Nbd4 Ng4 18.h3 Ne5 19.Nc6 Nc6 20.bc6 Rac8 21.Nd4 Qg5 22.Bf3 Qe5 23.g3 Nd3 24.Ba3 Bf3?? 25.Nf3+– Qc3 26.Bd6 Rc6 27.Bf8 (27.Bf8 Kf8 28.Nd4+–) 1–0. carocan (1695) – bogdankr (1765), kurnik, 2011.

6.Be2 0–0. justenest (1940) – croach (2320), net–chess.com, 2011.

6.Nf3 a5 7.c4 dc4 (7...0–0!?=) 8.Na3+= Ba3 (8...0–0!?+=) 9.Ba3+/– cb5 10.ab5 Bd7 (better is 10...c3!?+/–) 11.Bc4+– Qb6?! (11...Bc8+–) 12.Ne5 Bb5 (12...h5 13.Qf3 Bb5+–) 13.Rb1 Ne4 (13...Qc7 14.Bb5 Nc6 15.Nc6 bc6+–) 14.Bb5 (14.Bb5 Kd8 15.Nf7 Kc8 16.Qg4+–) 1–0. pcmvr – nerob (2055), net–chess.com, 2015.

6.Nf3 a6 7.c4 0–0 8.Nc3 (8.d4 b6+=) 8...e5 9.d4 (9.bc6 bc6 10.d4 Bg4+=) 9...e4 10.Ne5 Nbd7 (10...Re8 11.Be2+=) 11.Nd7= Bd7 12.c5 Be7 13.b6 Bg4 14.Ne2 Nd7 15.h3 Bh5 (15...Be6 16.Nf4=) 16.Qb3 (16.Qc2 Bg5=). michaelbuss (2600) – average_at_chess (2230), ChessWorld.net, 2003.

6.Nf3 a6 7.c4 Bd7 8.Nc3 (8.ba6 Na6 9.Be5 Be5 10.Ne5 c5=) 8...ab5 (8...dc4 9.Bc4 0–0 10.0–0=) 9.ab5= Ra1 10.Qa1 dc4 (10...0–0 11.d4=) 11.Bc4 cb5 (11...Qb6 12.Qb1=) 12.Nb5+= Bb5 (12...Be7 13.0–0+=) 13.Bb5+/– Nc6 14.Qa4 (14.Nd4 Qc8+/–) 14...0–0+= 15.Bc6 (15.0–0 Nb4+=) 15...bc6 16.Qc6 Be7 (16...Qb8!? 17.Qc1 e5=) 17.0–0+/– Qd3 18.Qc3 Qd5 (18...Qb5 19.Qc2+/–) 19.Ra1 (better is 19.Qc2+/–) 19...Nh5?? (19...Rb8 20.Qc2+/–) 20.Qe5 (better is 20.Ra5 Qe4 21.Rh5 Qb1 22.Bc1+–) 20...Qe5 (20...Nf6 21.Qd5 Nd5 22.Kf1+/–) 21.Be5 Bf6 (21...Rc8 22.Kf1+/–) 22.d4+– Rc8? (better is 22...Be5 23.de5 g6+–) 23.g4 Be7 (23...Be5 24.de5 (24.Ne5?! Nf6+–; 24.gh5?! Bc7+/–) 24...Nf6 25.ef6 gf6 26.Nd4+–) 24.gh5 f6 (24...Bb4 25.Ra4 Bf8 26.Kg2+–) 25.Bf4 (25.Ra7 Kf8 26.Bc7 Ke8+–) 25...g5 (25...Rc3 26.Kg2+–) 26.hg6 hg6 27.Rb1 (27.Ra7 Bb4+–) 27...Kf7 (27...g5 28.Rb7 Bd8 29.Bd6+–) 28.Rb7 Rd8 29.Rc7 (29.e4 Ke8+–) 29...Rd5 (29...Ke8 30.h4+–) 30.Nd2 (better is 30.e4!? Rd8+–) 30...e5 31.e4 Rd4 32.Be3 Rd3 33.Bc5 Rd2 34.Be7 (34.Re7 Kg8+–) 34...Ke6 35.Bf8 (35.Bb4 Rd7 36.Rc6 Kf7+–) 35...f5 36.ef5 Kf5 37.Bg7 e4 (37...Ke6 38.Rc6 Rd6 39.Rd6 Kd6 40.Kg2+–) 38.Rf7 (38.Rc5 Ke6+–) 38...Kg4 39.Be5 (39.Kg2 e3+–) 39...g5 40.Kg2 Ra2 (40...Kh5 41.Re7+–) 41.h3 (41.Bd4!? Kh5+–) 41...Kh5 42.Bd4 Ra4 43.Be3 Ra5 (43...Kg6 44.Rf8+–) 44.Kg3 (44.Re7 Kg6 45.Re4 Kf5+–) 44...Kg6 (44...Re5 45.Rf8+–) 45.Re7 Kf5 46.Ra7 (46.Rg7 Kf6 47.Rg8 Rd5+–) 46...Rb5 (46...Rd5 47.Rg7 Kf6 48.Rg8+–) 47.Rc7 (47.Ra8 Rd5+–) 47...Rb1 (47...Rd5 48.Rg7 Kf6 49.Rg8+–) 48.Rc5 Kf6 49.Rg5 Rg1 50.Kh4 Rb1 (50...Rd1+–) 51.Kg3 (better is 51.Bd4!? Kf7 52.Re5 Re1+–) 51...Rg1 52.Kh2 Re1 (52...Rg5 53.Bg5 Kg5 54.Kg3+–) 53.h4 Re2 (53...Ke6 54.Kg3+–) 54.Rg2 (better is 54.Kg3!? Re1+–) 54...Ra2 55.h5 Ra5 56.h6 Rh5 57.Kg1 Rd5 (57...Rh3 58.Rg7 Ke5+–) 58.h7 (58.h7 Rh5 59.Bd4 Ke6 60.Rh2 Rh7 61.Rh7+–) 1–0. Trkn – goldenbeauty, itsyourturn.com, 2000.

6.Nf3 a6 7.Be2 Qe7 8.0–0 0–0 9.c4 e5 10.d3 (10.d4 ed4 A) worse is 11.Nd4 Qe5 12.f4 Qe3 13.Kh1 dc4–/+ (13...Bf4?! 14.Nc2 Qe4 15.Bd3=); B) 11.ed4?! dc4 12.bc6 Nc6=; C) 11.Qd4 dc4 12.Rd1=) 10...Be6 (10...ab5 11.ab5 Ra1 12.Ba1 dc4 13.dc4 cb5 14.cb5=) 11.Nbd2 (11.Ne5!? ab5 12.ab5 Ra1 13.Ba1+=) 11...Nbd7 12.Ng5 a5 13.Ne6 fe6 14.Bf3 c5 Black prepares d4 15.e4 d4 16.Bc1 b6 17.g3 h6 18.Bg2 Nh7 19.Nf3 Rf6 20.Bd2 Raf8 21.Qe2 Kh8 22.h4 Qf7 23.Nh2 Qg8 24.Bh3 Rd8 25.Qe1 Ndf8 26.Ba5 (26.Ng4 Rf7+=) 26...ba5= 27.Qa5 Nd7 28.Qd2 Ra8 29.a5 Bc7 30.b6 Nb6 (better is 30...Bd6+=) 31.ab6+/– Bb6 (31...Bd6 32.Ra7+–) 32.Ng4+– Rff8 (32...Ra1 33.Ra1 Qc8 34.Qb2+–) 33.Ne5 Rf6 34.Nd7 e5 35.Nf6 gf6 (35...Nf6 36.Be6! Qd8+–) 36.Ra8 Qa8 37.Qh6 Qf8 38.Qf8 (38.Qh5!? Qe7 39.Rb1 Bc7+–) 38...Nf8 39.f4 f5 (39...ef4 40.Rf4 Kg7 41.Bf5+–) 40.Bf5 (40.fe5 Bc7+–) 40...ef4 41.Rf4 Kg7 42.g4 Ba5 43.g5 Kg8 (43...Bd2 44.Rg4 Ng6 45.Bg6 Kg6 46.e5+–) 44.h5 Bd2 45.Rg4 Be3 46.Kg2 Kh8 47.e5 Bd2 48.e6 Ne6 49.Be6 Be3 50.g6 (50.h6 Bc1 51.Bf5 Kg8 52.h7 Kg7 53.Rh4 Be3 54.h8Q Kf7 55.Rh7) 50...Bg5 (50...Kg7 51.Rg3 Bf4 52.Rf3+–) 51.Re4 Bf4 52.Bd5 Bg5 53.Re8 Kg7+– 54.Rg8 Kh6 55.Rh8 Kg7 56.Rh7 Kf6 57.g7 Ke5 58.g8Q Kd6 59.Qe6 (59.Qg5?!) 1–0. Starr,Albert Martin – Yeh,Andrew, San Francisco Bernardo Smith mem, 2005.

6.Nf3 cb5 7.ab5 Nbd7 8.Be2 b6 (8...a6 9.ba6 ba6 10.Nc3=) 9.d4 (9.Ba3 Ne5+=) 9...0–0 (9...Ne4 10.0–0+=) 10.0–0 Ne4 11.c4 (11.Ba3 a5+=) 11...Bb7 12.Nbd2 (12.Ba3 dc4 13.Bc4 Ba3 14.Ra3 Qf6+=) 12...Ndf6 (12...Nd2 13.Nd2 Qc7 14.f4=) 13.Rc1 (13.Ne5 a5=) 13...Nd2 (13...a6 14.ba6 Ba6 15.Qb3=) 14.Nd2 Rc8 (14...Qb8 15.f4 Rc8 16.Bd3=) 15.Qa4+= dc4 16.Nc4 (worse is 16.Bc4 Ng4 17.h3 Qh4–/+) 16...Bb8 17.Rcd1 (17.Ba3 Re8+=) 17...Qc7 (better is 17...Nd5=) 18.Ne5?? (better is 18.f4=) 18...Qc2–+ 19.Qc2 Rc2 20.Ba3 Re2 21.Bf8 Kf8 22.Rc1 (22.Ra1 Rc2–+) 22...Rb2 (22...Ke8 23.Nc6 Bc6 24.bc6–+) 23.Rb1 Rb1 (23...Rc2 24.Rfc1 Rc1 25.Rc1–+) 24.Rb1 Be5 (24...Ke8 25.Ra1–+) 25.de5–/+ Ng4 26.Rc1 (26.Ra1 Ne5 27.f3 Bd5 28.Ra7 Ke8–+) 26...Ne5–+ 27.Rc7 Bd5 28.Ra7 (28.f3 f5–+) 28...Nc4 29.g3 (29.h3 Ke8–+) 29...Na5 (better is 29...Nd6–+) 30.Ra6+= Nc4 (30...Ke7 31.Rb6 Bb7–+) 31.Ra1?? (31.Ra7 h5 32.h3–+) 31...Nd2 (31...Ke7 32.Ra7 Kf6 33.Rd7–+) 32.h4 (32.Ra6 Nf3 33.Kf1 Bc4 34.Kg2 Ne1 35.Kg1 Bb5 36.Rb6 Bd3–+) 32...Nf3 33.Kf1 Bc4 34.Kg2 Ne5 35.f3 (35.f4 Nd7–+) 35...Nd7 (35...Bb5 36.e4–+) 36.g4 (36.Rb1 e5–+) 36...Bb5 37.Rd1 (37.Ra8 Ke7–+) 37...Ke7 38.Kf2 (38.Rc1 Bd3–+) 38...Bc4 39.Rd2 (39.h5 b5–+) 39...b5 40.f4 (40.e4 e5–+) 40...b4 (40...Nf6!? 41.Kg2–+) 41.Ke1 (41.e4 b3 42.Ke3 e5 43.fe5 Ne5–+) 41...Nc5 42.Rd4 Bd5 43.Ke2 (43.g5 b3 44.Kd2 Kd6–+) 43...b3 44.Rb4 Be4 (44...f5 45.g5–+) 45.Kd2 Bc2 (45...f5 46.g5–+) 46.Kc3 Ne4 47.Kc4 (47.Kb2 Nf2 48.Rb7 Kd6 49.Rf7 Nd1 50.Kc1 Kc6–+) 47...Nf2 48.g5 Nd1 (48...Nd1 49.h5 Kd7–+) 0–1. Curado,Manuel – Augusto,Fernando, corr Portugal, 1994.

6.Nf3 c5 7.c4 Nbd7 8.Be2 e5 (8...0–0 9.cd5 ed5 10.0–0=) 9.d3 d4 10.0–0 Bc7 (10...Qc7 11.Qd2=) 11.Nfd2 (11.Nh4 0–0=) 11...Nf8 (11...0–0 12.Bf3=) 12.Nb3 (12.Re1 Ne6=) 12...Qd6 13.Qc2 Ne6 14.N1d2 (14.a5 0–0=) 14...0–0 15.Rfe1 Rd8 16.Nf1 (16.f4 a6= (worse is 16...de3 17.fe5 Qd7 18.Nf1+/–)) 16...Rb8 (16...a6 17.Ng3=) 17.a5 de3 (17...Qd7 18.Ng3=) 18.fe3+= (18.Ne3? e4 19.g3 ed3 20.Bd3 Qd3 21.Bf6 Qc2 22.Nc2 gf6–+) 18...b6 19.Ng3 (19.ab6 ab6 20.Ng3 Ng5+=) 19...a6 20.Red1 (20.Nf5 Qf8+=) 20...Re8 (20...ab5 21.a6+=) 21.Nf5 (21.Bf3 ba5 22.Na5 Ng5=) 21...Qd7= 22.ba6 ba5 23.a7 Ra8 24.Na5 Ra7 25.Nb3 Ra1 26.Ra1 Bb7 27.Bc3 Rb8 28.Qb2 Bc6 29.Ra3 Ba4 30.Qa2 Bb3 31.Rb3 Rb3 32.Qb3 ½–½. Vornanen,Alpo – Baer,Werner, TT–10 ETC, 2003.

6.Nf3 c5 7.Bd3 Nbd7 8.Be2 (8.0–0 0–0 9.Be2 e5 10.Nh4 Re8 11.Nf5+=) 8...e5 9.0–0 0–0 10.Nh4 Bc7 11.d4 +=.

6.Nf3 c5 7.Be2 Nbd7 (7...0–0 8.0–0 Nbd7 9.d4 cd4 10.ed4 Re8 11.Re1=) 8.c4 (8.0–0 e5 9.Nh4 0–0 10.Nf5 Bc7 11.d4+=) 8...e5 9.cd5 e4 10.Nh4 Nb6 11.d3 +=.

6.Nf3 Bd7 7.Nc3 0–0 8.Be2 b6 9.0–0 c5 10.a5 a6 11.ab6 Qb6 12.ba6 Na6 13.Qb1 Nb4 14.Ba3 c4 15.Bb4 Qb4 16.Qb4 Bb4 17.Ra8 Ra8 18.Ne5 Be8 19.Nd1? Bd2–+ 20.e4?! Ne4 21.Bf3 Nc3 22.Nc3? Bc3 23.Ng4 h5 24.Ne3 g6 25.Nc4 Ra2 26.Nd6 Ba4 27.h3 Rc2 28.Bd1 Ra2 29.Ba4 Ra4 30.Rc1 Be5 31.Nb7 Rc4 32.Rc4 dc4 33.Nc5 c3 34.Nd3 Bg7 35.Kf1 e5 36.Ke1 e4 37.Nc5 f5 38.Kd1 Kf7 39.Kc2 Bd4 40.f3 Bc5 41.fe4 Bd4 42.ef5 gf5 0–1. j1a9n55 – walmit, kurnik, 2011.

6.Nf3 Bd7 7.c4 (7.Be5 Be5 8.Ne5 0–0=) 7...a6 (7...dc4 8.Bc4 cb5 9.ab5=) 8.Nc3 e5 (8...0–0 9.bc6 Bc6 10.Rc1+=) 9.d4 e4 10.Nd2 (better is 10.c5 ef3 11.bc6 Bc6 12.cd6 fg2 13.Bg2 Qd6 14.Ba3=) 10...Ng4 (better is 10...Bg4!? 11.Be2 Be2 12.Qe2 ab5 13.ab5 Ra1 14.Ba1 Qa5=) 11.cd5+= Ne3? (better is 11...cd5 12.Nd5 Bf5+=) 12.Qb3?? (12.fe3 Qh4 13.g3 Bg3 14.hg3 Qg3 15.Ke2 Bg4 16.Nf3 Bf3 17.Kd2 Bd1 18.Rd1 cd5 19.Nd5 ab5 20.Bb5 Nc6 21.Nf4–+) 12...Nf1 13.Nde4 Bf5 (13...Bh2 14.Kf1 cd5 15.Qd5+– (15.Rh2?! de4 16.Ne4 Be6+=)) 14.Kf1 0–0 (14...cb5 15.Nd6 Qd6 16.Ba3+=) 15.Nd6+= Qd6 16.Ba3 Qd7 (better is 16...c5 17.dc5 Qg6+–) 17.Bf8 Kf8 18.bc6 bc6 19.f3 cd5 (19...Kg8 20.Re1+–) 20.Qd5 Qd5 (20...Ra7 21.Rd1+–) 21.Nd5 Nc6 22.Ne3 (22.Rd1 Bc2 23.Rd2 Ba4+–) 22...Bd7? (better is 22...Nd4 23.Nf5 Nf5+–) 23.Kf2 Nb4 (23...Rb8 24.Rhd1+–) 24.Rhd1 Rc8 25.Rd2 (25.d5 Nc2 26.Ra2 Ne3 27.Ke3 Ke7+–) 25...f5 (25...a5 26.d5+–) 26.g3 (26.Rb1 a5 27.d5 f4+–) 26...Kf7 27.a5 g5 28.Rb1 Rb8 29.Kg2 Nc6 (29...h5 30.Nd5 Nc6 31.Rb6+–) 30.Rb8 Nb8 31.d5 Kf6 (31...f4 32.gf4 gf4 33.Nc4+–) 32.Nc4 Bb5 (32...Ke7 33.f4 gf4 34.gf4+–) 33.Nd6 Bd7 34.Rb2 (better is 34.f4 Ke7 35.Nc4 gf4+–) 34...Ke7 (34...Ke5 35.Nf7 (worse is 35.Rb8 Kd6 36.Rd8 Kc7+–) 35...Kf6 36.Ng5 Kg5 37.f4 Kh5 38.Rb8+–) 35.Nf5 (35.Nc4!? Bb5 36.Na3 Nd7 37.Nb5 ab5+–) 35...Bf5 36.Rb8 Bd3 37.Rb6 Kd7 38.Kf2 Bc4 39.d6 Bb5 (39...h6+–) 1–0. Labahn,Wolfgang – Wolf, Ostende 4–Landerturnier, 1989.

6.Nf3 Bd7 7.c4 (7.Be5 Be5 8.Ne5 0–0=) 7...a6 8.Ne5 (8.ba6 Na6 9.Be5 Be5 10.Ne5 c5=) 8...ab5 (8...0–0 9.Qf3+=) 9.Nd7 (9.ab5 Ra1 10.Ba1 0–0+=) 9...Qd7 (9...Nbd7 10.ab5 Ra1 11.Ba1+=) 10.cb5 0–0 (10...Qd8 11.Be2=) 11.Bf6= gf6 12.Qg4 Kh8 13.e4 (13.Qh4 Be7=) 13...e5 (13...Be5 14.Nc3+=) 14.Qh4 (14.Qd7 Nd7 15.bc6 bc6 16.ed5 cd5=) 14...Qe6 (better is 14...Be7=) 15.d4?? (better is 15.bc6 bc6 16.Bd3+=) 15...ed4–+ 16.Bd3 (16.Nd2 f5 17.e5 Be5–+) 16...f5 (16...de4 17.Bc4 Bb4 18.Kd1–+) 17.0–0? (17.e5!? f6 18.Qh6–+) 17...de4 (17...fe4 18.bc6 bc6 19.Be2–+) 18.Re1 (18.Bc4 Qg6 19.Rd1–+) 18...Qb3?? (better is 18...Be7 19.Qf4 Qd6 20.Qf5 ed3–+) 19.Qf6= Kg8 20.Be4 fe4 (better is 20...Qe6!? 21.Qe6 fe6 22.bc6 fe4 23.cb7 Ra7 24.Re4 d3–+) 21.Qd6 (21.Qg5 Kh8 22.Qf6 Kg8 23.Qg5 Kh8 24.Qf6 Kg8=) 21...Ra4 22.Nd2? (better is 22.Qe7=) 22...Ra1–+ 23.Ra1 (23.Nb3?? Re1) 23...Qc3 (better is 23...Qb2 24.Rd1 Qc2 25.Qg3 Kh8–+) 24.Ra8?? (better is 24.Ra3 Qc1 25.Nf1–/+) 24...Qd2–+ 25.Qg3 (25.h3 e3 26.fe3 de3 27.Qg3 Kh8–+) 25...Kh8 26.h4 Nd7 27.Rf8 Nf8 28.Qe5 Kg8 29.Qg3 (29.bc6 bc6 30.Qe4 d3–+) 29...Ng6 30.h5 (30.bc6 bc6 31.h5 Qd1 32.Kh2 Qh5 33.Kg1 Qd1 34.Kh2 d3 35.Qb8 Kg7–+) 30...Qd1 31.Kh2 Qh5 32.Kg1 d3 33.Qd6 (33.Qb8 Kg7 34.Qa7 Qd1 35.Kh2 Qe2 36.Qd4 Kh6 37.bc6 bc6–+) 33...Qd1 (better is 33...Qe2 34.bc6 bc6 35.Qc6 Qd1 36.Kh2 Qh5 37.Kg1–+) 34.Kh2 d2 35.Qd8 Kg7 36.Qd4 f6 37.Qd7 Kh6 38.Qh3 Qh5 39.Qh5 Kh5 40.bc6 bc6 0–1. Romischke,W – Schultz, 1983.

6.Nf3 Bd7 7.c4 cb5 8.ab5 dc4 9.Bc4 0–0 10.0–0 Qc7 11.Bf6 Qc4=+ 12.Bd4 Qb5 13.Nc3 Qf5 14.Ra7 Ra7 15.Ba7 b5 16.Nd4 Qf6 17.Ndb5 Bb5 18.Nb5 Be5?? 19.Bd4 Bd4+= 20.Nd4 e5 21.Nf3 h6 22.Qa1 Nd7 23.Rc1 e4 24.Qf6 Nf6 25.Nd4 Rb8 26.h3 Rb2 27.Rc2 Rb1 28.Kh2 g5 29.Kg3 Kg7 30.Nf5 Kg6 31.Nd6 h5 32.Rc4 Rb2 33.Ne4 Ne4 34.Re4 Rd2 35.f3 h4 36.Kh2 Rf2 37.Re8 Re2 38.e4 Kf6 39.Ra8 Kg6 40.Ra6 Kg7 41.Rd6 Re3 42.Kg1 Re1 43.Kf2 Rb1 44.e5 Rb2 45.Kg1 Re2 46.Rd5 Kg6 47.Kf1 Re3 48.Kf2 Ra3 49.Rb5 Ra2 50.Kf1 Kf5 51.Rb7 1–0. j1a9n55 – walmit, kurnik, 2011.

6.Nf3 h6 7.c4 Nbd7 (7...a6 8.d4 b6 9.Nc3 0–0 10.Rc1 Bd7 11.Ne5=; 7...0–0 8.d4 b6 9.Bd3 dc4 10.Bc4 a6 11.Nbd2=; 7...dc4 8.Bc4 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1=; 7...cb5 8.ab5 0–0 9.d4 dc4 10.Bc4 a5 11.0–0+=) 8.d4 Ne4 (8...c5 9.dc5 Nc5 10.cd5 ed5 11.Be2+=) 9.c5 Bc7 10.Nbd2 (10.Bd3 Qf6 11.Qc2=) 10...Ndf6 (10...Ba5 11.Bd3=) 11.Be2 (11.Bd3+=) 11...Bd7 12.0–0 Ng5 13.Qb1 Ng4 14.Re1 Qb8 15.Ng5 Bh2 16.Kf1 Ne3 17.fe3 hg5 18.Bf3 (18.Bd3!?+=) 18...Bg3 19.Rd1 f5 20.Ke2 g4 (20...cb5 21.Nf1+=) 21.Bg4= fg4 22.Qg6 Kd8 23.Rh1 Kc7?? (better is 23...Rg8=) 24.Qg4+– (24.Qg7?! cb5 25.ab5 Qf8 26.b6 ab6 27.cb6 Kc6 28.Rhc1 Kd6 29.Qf8 Rhf8 30.Ba3 Ra3 31.Ra3 Rf2 32.Kd1 Rg2=) 24...Bh2 25.Raf1?? (25.Nf3 cb5 26.Rh2 Rh2 27.Nh2 ba4 28.Qg7 Qg8 29.Qe5 Kd8+–) 25...Qg8? (25...cb5 26.Nf3 ba4 27.Rh2 Bb5 28.Kd1 Qg8 29.Rh8 Qh8 30.Qf4 Kc8+–) 26.Rh2!+– a6 (26...Rh2 27.Qf4) 27.b6 Kc8 28.Rh8 Qh8 29.Qf4 Kd8 30.Nf3 Rc8 (30...Qh5 31.Kd2 Qf5+–) 31.Ng5 Qh5 32.g4 Ke8 (32...Ke7 33.Qd6 Kd8 34.Ne6 Ke8 35.Rf8) 33.gh5 1–0. Tilp,Andreas – Baldauf, corr, 1987.

6.Nf3 h6 7.Be2 A) 7...0–0 8.0–0 (8.Be5 a6 9.ba6 b6 10.a7 Ra7 11.d4+=; 8.d4 a6 9.bc6 Nc6 10.Ba3 Ba3 11.Ra3=; 8.Ne5 Nfd7 9.Nd7 Nd7 10.0–0 e5 11.d4=) 8...Nbd7 9.d4 Qc7 10.Nbd2 Ng4 11.h3+=; B) 7...Nbd7 8.0–0 (8.d4 a6 9.c4 dc4 10.bc6 bc6 11.Nbd2=; 8.d3 a6 9.c4 ab5 10.ab5 Ra1 11.Ba1=; 8.Nc3 e5 9.0–0 0–0 10.bc6 bc6 11.Ba3+=) 8...0–0 9.d4 Qc7 10.Nbd2 Ng4 11.h3+=; C) 7...Qc7 8.c4 (8.0–0 e5 9.Ba3 c5 10.d4 e4 11.Ne5+=) 8...dc4 9.Na3 e5 10.Nc4 e4 11.Nfe5+=.

6.f4 cb5 7.ab5 b6 8.Nf3 Bb7 9.Ne5 0–0 10.Be2 Ne4 11.0–0 Nd7 12.Qe1 Be5 13.fe5 Qc7 14.Nc3 Qe5 15.d3 Nc3–/+ 16.Bc3 Qg5 17.Qf2=+ Rac8 18.h4 Qg6 19.Ra3 Rc3 20.Rc3+/– Nf6 21.Rc7 Ba8? 22.Ra7 h6 23.Ra6 Nd7 24.Ra7 Ne5?? 25.d4 Nc4 26.Bd3 f5 27.Bc4 dc4 28.Kh2 Bd5 29.Qg3 Qf6 30.Rc7 g5 31.Ra1 f4 32.Qg4?? Qg6? 33.Raa7 (33.Raa7 fe3 34.Qg3+–) 1–0. elsh1403 – bush45, kurnik, 2011.

6.f4 d4 7.Bd4 0–0 (7...Bf4!? 8.Nf3 Bd6=) 8.Nf3+= cb5 +=. pcmvr (2410) – stejam (2385), net–chess.com, 2006.

6.c4 0–0

7.d3 e5 8.Nf3 Bg4 9.Be2 Qe7 10.0–0 Nbd7 11.Nfd2 Be2 12.Qe2 h6 13.d4 e4 14.c5 Bc7 15.f3 Rae8 16.fe4 Ne4 17.Ne4 Qe4 18.Bc1 Qd4! 19.ed4 Re2 20.Nc3 Re7 21.a5 Rfe8 22.b6 Bb8 23.g3 Re1 24.Bf4 Rf1 25.Rf1 ab6 26.cb6 Bf4–+ 27.gf4 Ra8 28.Ra1 Nb6! 29.Ra2? Nc4 30.Ne2 Ra5 31.Ra5 Na5 32.Kf2 b5 33.Ke3 f5 34.Ng3 g6 35.h4 Kf7 36.h5 b4 37.hg6 Kg6 38.Ne2 h5 39.Kd3 h4 40.Ng1 Kh5 41.Nh3 Kg4 42.Ng5 Kf4 43.Ne6 Kg3 44.Ke2 b3 45.Nc5 Kg2 46.Nd3 h3 47.Nf4 Kg3 48.Nh5 Kg2 49.Nf4 Kh2 50.Kf2 b2 51.Ne2 b1Q 52.Nf4 Nc4 53.Ne2 Qe4 54.Ng3 Qd4 (54...Qd4 55.Kf1 Qg1 56.Ke2 Qe3 57.Kf1 Nd2; 54...Qe3 55.Kf1 Nd2) 0–1. j1a9n55 – pedro1a, kurnik, 2011.

7.Nf3 a6 8.Qc2 +=.

7.Nf3 a6 8.Be2 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.bc6 bc6 12.0–0 Ba6 13.cd5 (13.d3 Qc7+=) 13...Be2+= 14.Qe2 cd5 15.Qa6 (15.d3 Qe7+=) 15...Nc5 (15...Qc7 16.Nc3+=) 16.Bf6= Na6 (16...Qf6? 17.Qd6 Ne4 18.Qb4+–; 16...gf6?! 17.Qe2=) 17.Bd8 Rd8 18.Nc3 Nb4 (18...Rb8 19.e4 Nb4 20.e5+=) 19.Rb1 (19.Ra1 Rb8=) 19...Nd3 (19...Kf8 20.d4+=) 20.h3 (20.Kf1 Rc8=) 20...Rc8 (20...Kf8 21.Kf1=) 21.Kf1 Ne5 22.Ne5 Be5 23.f4 (23.d4 Rc3 24.de5 h5=) 23...Bc3+= 24.dc3 g6 (24...h5 25.Rb3+=) 25.Rb3= f5 (25...h6 26.Ke2=) 26.Ke2 Rc7 (26...h5 27.Kd3=) 27.g3 (27.Kd3 Kf7=) ½–½. hal1958 – CYTO, playchess.de, 2003.

7.Nf3 cb5 8.ab5 b6 (8...Nbd7 9.Ba3 Ba3 10.Na3=) 9.Qc2 (9.cd5 Nd5 10.Bc4 a5=) 9...Bb7 10.Be2 (10.Nc3 a5+=) 10...a5 (10...dc4 11.Bc4 a5 12.d3+=) 11.Ra4 (11.Na3 Nbd7+=) 11...Nbd7 (11...dc4 12.Bc4 Nbd7 13.d4+=) 12.d4 dc4 13.Nbd2 Bb4 14.0–0 c3 15.Bc3 Rc8 16.Nc4 (16.Bc4 Bf3 17.Bb4 Rc4 18.Qc4 Bd5+=) 16...Bf3 17.gf3 Nd5 18.Bb4 (18.Bd2 Qf6+=) 18...Nb4 (18...Qg5 19.Kh1 Nb4+=) 19.Qc3 (19.Qd1!?+=) 19...Qg5–/+ 20.Kh1 Qb5 21.Raa1 Nd5 (21...Qh5 22.Qb2–/+) 22.Qd2 (22.Qc2 Rc7–/+) 22...Qb4–+ 23.Qd3 Nc3 24.Rfc1 Ne2 25.Qe2 Rc6 (25...b5 26.Nd2 Rc1 27.Rc1–+) 26.Rab1 (26.Nd2 Rfc8 27.Rc6 Rc6–+) 26...Qe7 27.Nd2 Rfc8 (27...Rc1 28.Rc1 e5 29.de5 Ne5 30.Rb1–/+) 28.Rc6–/+ Rc6 29.Rg1 (29.Ne4 e5–/+) 29...Rc2 (29...e5 30.Qb5 Rc7 31.Qd5–+) 30.Qd3 Ra2 (30...Rc7 31.Ne4–+) 31.Ne4–/+ f5 (31...Qb4 32.Qa6 g6 33.Qb7+/–) 32.Qc4 Rb2 (32...fe4?! 33.Qa2 ef3 34.Qc4=) 33.Ng5 (33.Qc3 Rb4 (33...fe4?! 34.Qb2 ef3 35.Qc2+=) 34.Ng3 Nf6–/+) 33...Nf8–+ 34.d5 (34.Nh3 b5 35.Qc3 Rb4–/+) 34...b5 (34...Rf2 35.Qd4–+) 35.Qc6 Rf2 36.d6 (36.Ne6 Ne6 37.de6 g6–/+) 36...Qd8–+ 37.Qb7 Qd7 (37...Qd6 38.Qf7 Kh8 39.Qh5 Rh2 40.Qh2 Qh2 41.Kh2+=) 38.Qd7 Nd7 39.Ne6 (39.Rc1 Nb6 40.Rc8 Nc8 41.d7 Rf1 42.Kg2 Rg1 43.Kg1 g6 44.dc8Q Kg7 45.Qd7 Kh6 46.h4 a4 47.Qh7) 39...g6–+ 40.Nd4 Rb2 (40...a4 41.Nb5 Ne5 42.Nd4+=) 41.Rc1 Nf6 (41...f4 42.Rc8 Kf7=) 42.Rc8= Kf7 (42...Kg7 43.Rc7 Kg8 44.d7 Nd7 45.Rd7+=) 43.Rc7 Kg8 44.Ne6 (better is 44.d7 Nd7 45.Rd7+=) 44...Rd2 (44...a4 45.Rg7 Kh8 46.Rf7+–) 45.Rg7+= Kh8 46.Rf7 Rd6 47.Rf6 h5 48.Rf8 (48.Rg6 a4 49.Rf6 Rd1 50.Kg2 a3 51.Rf8 Kh7+/–) 48...Kh7+= 49.Ng5 Kg7 50.Rf7 Kg8 51.Kg2 (51.e4 Rd2+=) 51...b4 (51...Rd2 52.Kg3+=) 52.Ra7 Rd5 53.Ra6 Rb5 54.Rg6 Kf8 55.f4 (55.Ne6 Kf7 56.Nd4 Kg6 57.Nb5=) 55...b3= 56.Nf3 (56.Rf6!? Kg7 57.Rf7 Kg6 58.Rd7=) 56...b2+= 57.Nd2 Rc5 (57...Rd5 58.Nb1 Rd1 59.Rf6 Ke7 60.Rf5 Rb1–+) 58.Kf3+= Rc2 59.Nb1 Rc1 60.Na3 Rf1 61.Ke2 Ra1 62.Rb6 Ra3 63.Rb2 a4 64.Rb5 Ra1 (better is 64...Ra2 65.Kd3 Rh2 66.Rf5 Ke7+/–) 65.Rf5+– Ke7 66.Rh5 a3 67.Ra5 a2 68.Ra7 Kf6 69.Ra6 Kf5 (69...Kg7 70.Ra8 Rh1 71.Ra7 Kh6 72.Ra6 Kh5 73.Ra5 Kg4 74.h3 Kg3 75.Ra2 Rh2 76.Kd3 Ra2–+) 70.Ra5+– Ke6 71.Ra6?? (better is 71.h4!?+–) 71...Kd7 (71...Kf5 72.h4 Kg4+–) 72.Ra7–/+ Kc6 73.Ra6?? (better is 73.h4+–) 73...Kb7 74.Ra3 Rh1 75.h4?? (75.Rb3 Kc6 76.Ra3–/+) 75...a1Q–/+ 76.Ra1 Ra1 77.Kf3 Kc7 (77...Rf1 78.Kg4–/+) 78.e4 Kd7 79.Kg4 Ke6 80.h5 (better is 80.Kf3!?–/+) 80...Rg1 81.Kf3 Kf6 (81...Kf6 82.Ke3 Rh1–+) 0–1. Fehr,Wolfgang – Muller,G, corr ICCF we cup pr, 1994.

7.Nf3 Qe7 8.Be2 e5 9.0–0 Bf5 (9...e4!? 10.Ne1 dc4 11.bc6 Nc6–+ (11...bc6?! 12.f3+=)) 10.Nc3 Nbd7 11.Nh4 Bg6 (11...Be6!?+=) 12.Ng6 hg6 13.d4 e4 14.c5 Bc7 15.a5 Rad8 16.a6 ba6 17.Ra6 cb5 (better is 17...Nb8!? 18.Ra1 cb5 19.Bb5 Kh7+/–) 18.Nb5+– (18.Bb5?! Nb8 19.Ra4 Kh7+/–) 18...Bb8? (18...Nb8 19.Ra7 Rd7+–) 19.c6 (19.Na7?! Nc5 20.dc5 Qc7+/–) 19...Nb6 (19...Qe6 20.Ba3 (20.Na7?! Qd6 21.g3 Ba7+–) 20...Rfe8 21.Qd2+–) 20.Ba3 Bd6 21.c7 (21.Nd6?! Rd6 22.Qa1 Rc8+–) 21...Rd7 22.Nd6 Rd6 23.Qc2 Nc8 (23...Rc8 24.Rc1+–) 24.Rd6 Nd6 25.Qc6 Nc8 1–0. usingprogram (1985) – paco1999 (1670), kurnik, 2013.

7.Nf3 Re8 8.Bd3 e5 9.Bc2 e4 10.Nd4 c5 11.Nb3 Bg4 12.Qc1? dc4–+ 13.h3 Be6 14.Nc3 cb3 15.Bd1 Nbd7 16.0–0 Nb6 17.a5 Nbd5 18.f3 Nc3 19.Bc3 ef3 20.Bf3 Rb8 21.Bf6 Qf6 22.Bc6 Qe5 23.Be8 Qh2 24.Kf2 Bg3 25.Ke2 Re8 26.Rg1 Be5 27.Rb1 Qg3 28.Qc5 Rc8 29.Qa7 Bc4 30.d3 Bb5 31.Qb7 Rc2 32.Kd1 Be8 33.Qb3?? Rg2 34.Rg2 Qg2 35.Qc2 Qf1 36.Kd2 Qf2 37.Kc1 Qe1 38.Qd1 Qe3 39.Qd2 Qd4 40.Qc2 Bf4 41.Kd1 Ba4 42.Rb3 Bb3 43.Qb3–+ h6 44.Qc2 Qe3 45.Qc8= Kh7 46.Qc2 (46.Qc2 Qg1 47.Ke2 Qg2 48.Ke1 Bg3 49.Qf2 Qf2 50.Kd1 Bf4 51.a6 Qd2). j1a9n55 (1610) – gabysteaua, kurnik, 2011.

7.Nf3 h6 8.Be2 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 Re8 12.d4 c5 (12...dc4 13.Nc3=) 13.Nc3 cd4 14.Nd4 ½–½. mr5reasons1 (1630) – jrob0882, gameknot.com, 2013.

7.f4 Nbd7 8.Nf3 Nc5 9.d4 Nce4 10.Bd3 Ng4 11.Qe2 Ngf2 12.Be4? Ne4 13.0–0= f6 14.Nfd2 f5 15.Ne4 fe4 16.Ba3 Ba3 17.Na3 Bd7 18.c5 Be8 19.Rab1 Rb8 20.Qd2 Bh5 21.Rb2 Qh4 22.g3 Qg4 23.Rfb1 Qh3? 24.bc6+– Bf3 25.Rb7 Rbc8 26.Ra7 Rc6 27.Rbb7 Qg4 28.Rg7 Qg7 29.Rg7 Kg7 30.Nb5 Ra6 31.Qb4 Rfa8 32.Nc3 Kf7 33.Qb7 Kg6 34.c6 R8a7 35.Qc8 Kf6 36.Qh8 Kg6 37.Qg8 Kf6 38.Qg5 Kf7 39.f5 Rc6 40.fe6 Re6 41.Qd5 Rc7 42.Nb5 Rc1 43.Kf2 Rc2 44.Ke1 Rc1 45.Kd2 Rd1 46.Kc3 Rd3 47.Kb4 Re3 48.Nc7 Bg4 49.Ne6 Be6 50.Qh5 Kg8 51.Qg5 Kf7 52.Qe3 1–0. carocan (1785) – sebastians19 (1740), kurnik, 2011.

7.Bf6 Qf6 8.d4 a6 9.Nd2 Nd7 10.Ngf3 ab5 11.ab5 Ra1 12.Qa1 c5 13.Be2 cd4 14.Nd4 Be5 15.N2f3 Bd4 16.Qd4= Qd4 17.Nd4 Nb6 18.c5 Na4 19.c6 bc6 20.Nc6 Bd7 21.Kd2 Bc6 22.bc6 Rc8 23.Rc1 Nb6? 24.Ba6 Rc7+= 25.Bb7 Kf8 26.Rb1 Nc4–/+ 27.Kc3 Ke7 28.e4 Kd6 29.ed5 ed5 30.Kd4 Ne5 31.Rb5 Nc6 32.Bc6 Rc6 33.Rd5 Ke6 34.Re5 Kf6 35.Re2 Re6 36.Re6 Ke6 37.g4 Kf6 38.h4 h5 39.f3 hg4 40.fg4 g5?? 41.h5+– Ke6 42.Ke4 Kf6 43.Kd5 Kg7 44.Ke5 f6 45.Ke6+– 1–0. ludice (1770) – niekka, kurnik, 2011.

6.Nf3 0–0

7.Nc3 Bd7 8.Be2 e5 9.d4 e4 10.Ne5 Be5 (better is 10...a6!?+=) 11.de5+= Ne8 12.Ba3 Nc7 (better is 12...Qg5!?+=) 13.Bf8+– Qf8 14.0–0 cb5 (better is 14...Qe7!?+/–) 15.Nb5 Nb5 16.Bb5 Bb5 17.ab5 a6? (17...Qc5+–) 18.Qd5 Qc8 19.Rfd1 g6 (19...h6 20.Qe4 a5 21.c3+–) 20.Qd8 (better is 20.Qd6!? Kg7+–) 20...Qd8 21.Rd8 Kg7 22.c4 h5 (22...g5 23.c5+–) 23.Kf1 (23.c5 g5+–) 23...f5 (23...h4 24.c5+–) 24.c5 Kf7 25.c6! Nc6 (25...bc6 26.bc6 Passed pawn) 26.Ra8 (26.bc6?! Rd8 27.cb7 Rb8+/–) 26...ab5 27.Rb1 b4 28.Rc8 1–0. booklover – mckenna215, ChessWorld.net, 2015.

7.c4 a6 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 cb5 11.Nb5 Be7 12.d4 Nc6 13.Be2 Bb4 14.Bc3 Ne4 15.Bb4 Nb4 16.Qb2 Nc6 17.0–0 h6 18.Nc3 Nc3 19.Qc3 dc4 20.Bc4 Bd7 21.Rb1 Bc8 22.h3 Kh8 23.Bb5 Ne7 24.Rc1 Nd5 25.Qb3 Bd7 26.Bd7 Qd7 27.Ne5 Qe7 28.Rb1 b6 29.e4 Nf6 30.f3 Nd7 31.Nd7 Qd7 32.Qb6 Rd8 33.Rd1 Qd6 (33...Rc8 34.Ra1+/–) 34.Qd6+– Rd6 35.Kf2 Kg8 36.Ke3 Kf8 37.f4 Ra6 38.g3 Ke7 39.Rd3 Ra2 40.Rb3 Rg2 41.Kf3 Rd2 42.Rb7 Kf6 43.Ke3 Rg2 44.e5 Kg6 45.g4 f5? (45...Rg3 46.Ke4 f5 47.gf5 ef5 48.Kd5 Rd3+–) 46.Re7+– fg4 47.hg4 (47.Re6?! Kf5 48.Rc6 gh3+=) 47...Rg4 48.Ke4 h5 49.Re6 Kf7 50.d5 h4 51.Rc6 h3? (51...g5 52.Kf5 Rf4 53.Kg5 Rd4 54.Rc7 Kg8+–) 52.Kf5 White plans e6 52...h2 53.e6 (53.Kg4 h1Q 54.Rc7 Kg6 55.Rc6 Kh7–+) 53...Kg8 54.Rc8 (54.Kg4 h1Q 55.Rd6 Kf8–/+) 54...Kh7 55.e7 (55.Kg4 h1Q 56.Rc7 Qg2 (56...Qd5?! 57.e7 Qe4 58.Kg5–+) 57.Kh4 Kg6–+ (57...Qd5?! 58.e7 Qh1 59.Kg5 Qg1 60.Kh4 Qe1 61.Kg5–+)) 55...h1Q 56.e8Q (56.Kg4? Qg2 57.Kh4 Qf2 58.Kg4 Qe2 59.Kf5 Qe7–+) 56...g6 (56...Rf4 57.Kf4 Qd5 58.Rd8 Qc4 59.Qe4 Qe4 60.Ke4+–) 57.Kg4 Qg2 58.Kh4 Qh2 59.Kg5 Qg3 60.Kf6 Qf4 61.Ke6 Qf5 62.Ke7 (better is 62.Kd6 Qf4 63.Qe5 Qb4 64.Kd7 Qg4 65.Qe6 Qa4 66.Rc6 Kg7+–) 62...Qe5 63.Kd8 Qd5 64.Qd7 Qd7 65.Kd7 Kh6 66.Rc5 g5 67.Ke6 g4 68.Kf6 g3 69.Rg5 1–0. Wall,Bill – Hanif,Mohd, chess.com, 2011.

7.c4 Bd7 8.Nc3 Qe8 9.Be2 a6 10.0–0 ab5 11.ab5 Ra1 12.Qa1 dc4 13.Bc4 cb5 14.Nb5? Bb5–+ 15.Bb5 Qb5 16.Bf6 gf6 17.Qf6 Nd7 18.Qh4 Kg7 19.Ng5? h6 20.Ne4 Bb8 21.f4 f5 22.Qg3 Kh7 23.Nc3 Qd3 24.Rb1 Rg8 25.Qf3 Nc5 26.Rb7? Nb7 27.Qb7 Kh8 28.Qf7 Qd2 29.Qf6 Kh7 30.g3 Qe3 31.Kg2 (31.Kg2 Qd2 32.Kh3–+). nizinna – albush0914, kurnik, 2011.

7.c4 Nbd7 8.Be2 cb5 9.ab5 Nb6 10.Qb3 dc4 11.Bc4 Nc4 12.Qc4 a5 13.ba6 ba6 14.0–0 Bb7 15.Nc3 Bf3 16.gf3 Qb8 17.Ba3 Bh2 18.Kg2 Rc8 19.Qh4 Be5 20.Rab1 Qc7 21.Ne4 Ne4 22.Qe4 f5 23.Qh4 Bf6 24.Qh3 g6 25.Rbc1 Qa5 26.Rh1 Qa3 27.Qh7 Kf8 28.Qg6 Qe7 29.Rh7 Bg7 30.Rch1 Qf6 31.Qf6 Bf6 32.R1h6 Bg7 33.Re6 Rc7 34.Rh1 a5 35.Rb6 a4 36.d4 Rc2 37.Ra1 Kf7 38.Rb7 Kg6 39.Rb6 Bf6 40.Ra3 f4 41.Kf1 Rh8 42.Kg2 Rc1 43.ef4 Rhh1 44.f5 Kf5 45.f4 Rcg1 46.Kf3 Rh3 0–1. purplegadge (1705) – ivo_de_tailleboi (1780), gameknot.com, 2012.

7.c4 Nbd7 8.Be2 e5 9.0–0 Qe7 10.d4 e4 11.Nfd2 Re8 12.Ba3 Nf8 13.Bd6 Qd6 14.Nc3 Bd7 15.c5 Qe7 16.a5 cb5 17.Nb5 Bc6 18.Qb3 a6 19.Nd6 Red8 20.Nf5 Qe6 21.Ng3 Ng6 22.Rfb1 Ng4 23.Qd1 f5 24.Rb6 Nh6 25.Ndf1 f4 26.Nh5 Rf8 27.Rb2 Rf7 28.Nf4 Nf4 29.ef4 Rf4 30.Ne3 Raf8 31.Bf1 Qf6 32.Raa2 Qg6 33.g3 R4f7 34.Bh3 Rf3 35.Bg2 R3f6 36.h3 Qg5 37.Qe1 Nf5 38.Nf5 Rf5 39.Rb6 black timed out 1–0. algernon (2400) – fischerjunior (2315), net–chess.com, 2014.

7.Bd3 A) 7...c5 8.c4 (8.0–0 Nbd7 9.Be2 e5 10.Nh4 Re8 11.Nf5+=) 8...Nbd7 9.cd5 ed5 10.0–0 Re8 11.Qc2+=; B) 7...Qe7 8.Ne5 (8.Be5 Nbd7 9.Bd6 Qd6 10.0–0 e5 11.Be2+=) 8...Nfd7 9.Nd7 Nd7 10.Qh5 f5 11.0–0+=; C) 7...Nbd7 8.Be2 (8.0–0 e5 9.Be2 Qc7 10.h3 c5 11.d3+=) 8...e5 9.d4 e4 10.Ne5 a6 11.bc6+=.

7.Be2 a6 8.0–0 b6 =.

7.Be2 a6 8.Nc3 e5 9.0–0 e4 10.Nd4 c5 11.Nb3 Qc7 Black prepares the advance c4 12.Kh1 c4 (12...Be6!?+=) 13.Nd4= Qe7 14.Qc1 (14.f3 ef3 15.Rf3 Be6=) 14...Bd7 15.Qe1 Qe5 16.f4 ef3 17.Nf3 Qf5 18.d3 Re8 19.Qh4 Re3?? (better is 19...Qg4 20.dc4 Qh4 21.Nh4 Re3=) 20.Ng5+– Qg6?! (20...Qe5 21.Nd1 Rh3 22.Be5 Rh4 23.Bd6 ab5 24.Nc3 cd3 25.Bd3 (25.cd3?! ba4 26.Nd5 Nd5 27.Rf7 Nc6 28.Rd7 Nf6 29.Rb7 Rd4+–) 25...Rha4 26.Na4 ba4 27.Be7+–) 21.Nd5! Nd5 (21...h6 22.Ne3 hg5+–) 22.Bh5 Qh6 (22...Bf5 23.Bg6 Bg6 24.Qc4 Nf6 25.Bf6 Nd7+–) 23.Bf7 Kh8 (23...Kf8 24.Nh7 Qh7 25.Qd8 Re8 26.Be8 Bf4 27.Bd7 Kf7 28.Qe8#) 24.Qh6 (24.Qh6 Nf6 25.Bf6 gf6 26.Qf6#) 1–0. ossekop (2070) – sabyyavin (1605), gameknot.com, 2013.

7.Be2 a6 8.c4 ab5+= 9.ab5 Ra1 10.Ba1 dc4 (10...cb5 11.cb5 Nbd7 12.d4+=) 11.Bc4 Bd7 (11...Nd5 12.Qb3+=) 12.bc6 (12.Nc3 e5+=) 12...Bc6 13.Be2 Nbd7 14.0–0 Qc7 15.h3 Rb8 16.Nd4 e5 (16...Nd5 17.Nc6 Qc6 18.Qb3+=) 17.Nc6 bc6 (17...Qc6 18.d4=) 18.d3 (18.Nc3 Nb6=) 18...Nc5 (18...Nd5 19.Qc2=) 19.Nd2 Nd5 20.Qc2 Nb4 21.Qc4 Nd5 (21...Ne6 22.Bg4 Nc5 23.d4 ed4 24.Qd4=) 22.Be5 Be5 23.Qc5 Rb2 24.Qc1 Nc3 25.Bf3 Na2 26.Qd1 Nc3 27.Qe1 c5 (27...Ra2 28.Nc4 Nd5 29.Ne5 Qe5 30.d4+/–) 28.d4 cd4 29.ed4 Bh2 (29...Bd6 30.Qe8 Bf8 31.Qe3+/–) 30.Kh1 Bd6 31.Qe3 Rc2 32.g3 (32.Re1 g6 33.g3 Bb4+/–) 32...Qd7 (32...g6 33.Re1+/–) 33.Kg2 Nb5 34.Rb1 Rc3 (34...Ra2 35.Qd3 Na3 36.Rb7+/–) 35.Qg5+– Nd4 (better is 35...Na7!?+–) 36.Qd5 Nf3 (36...Nc6 37.Ne4 Rf3 38.Kf3+– (38.Qd6?! Qd6 39.Nd6 Rd3=; 38.Nd6?! Rf6 39.Rd1 Re6=)) 37.Rb8!! (37.Nf3?! Qe7+=) 37...Rc8 (37...Bb8 38.Qd7) 38.Qd6!! Ne1 (38...Qd6 39.Rc8) 39.Kf1 Qh3 40.Ke1 h6 41.Rc8 Qc8 42.Qd5 (42.Ne4 Qe8 43.Qd5 Kh8+–) 42...Qc7 (42...Qc3 43.Ke2+–) 43.Ne4 Qe7 44.Kf1 h5 45.Kg2 g6 46.f4 Kf8 (46...Kg7 47.Qe5 Qe5 48.fe5+–) 47.f5 f6 (47...gf5 48.Qf5 Kg7 49.Ng5+–) 48.fg6 Kg7 49.Qf7 Qf7 50.gf7 Kf7 51.Kh3 f5 52.Nf2 (52.Nf2 Ke6 53.Kh4+–) 1–0. Mehlhorn,Uwe – Schweizer,H, BFH–073, 2001.

7.Be2 a6 8.c4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Bd7 13.Bd3 Nc6 14.Nc3 Ne5 15.Bb1 Bc6 16.Nd4 Bg2 17.Rg1 Bc6 18.f4 Ng6 19.Nc6 bc6 20.Qf3 Qb6 21.Qg3? (better is 21.Bc2–/+) 21...Ra8–+ 22.Ba2 Bb4 23.h4 (23.f5 ef5 24.Qf2 f4 25.Rg6 hg6 26.Qf4 Bc3 27.Bf7 Kf7 28.Bc3 Qb1 29.Ke2 Qb5 30.Ke1 Ke6–+) 23...Qc5 (better is 23...Bc3!? 24.Bc3 Ne4 25.Bd4–+) 24.f5 (24.Rg2 Bc3 25.dc3 Ne4–+) 24...Qf5 (24...ef5?! 25.Qc7 Qa7 26.Qc6–+) 25.Bb1 (25.Qc7 Ne5 26.Rf1 Qh5–+) 25...Ra1 26.Qb8 Bf8 27.Qb2 Qa5 28.Rg5 Qa3 29.Qc2 (29.Qa3 Ra3 30.Bg6 hg6–+) 29...Qb4 30.e4 (30.Rg1 Nd5 31.Ke2 Qc4 32.Kf3 Ne5 33.Kg2 Qg4 34.Kf1 Qh3 35.Rg2 Qf5 36.Qf5 ef5–+) 30...Ne4! 31.Rg4 f5 0–1. Casocobos Rodriguez,G – Santirso Alvarez,R, Asturias–chT, 1993. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 c6 5.e3 Bd6 6.a4 0–0)

7.Be2 cb5 8.ab5 b6 9.0–0 Bb7 10.c4 dc4 11.Bc4 Nbd7 12.d4 Qc7 (12...Bf3 13.Qf3 Bh2 14.Kh1 Bd6=) 13.Nbd2 (13.Bd3=) 13...Bd5 (better is 13...Bf3 14.gf3 Bh2 15.Kg2 Bd6+=) 14.Qe2 (14.Bd3 Qb7+=) 14...Bc4 (14...Rfc8 15.Bd3 Ng4 16.Rfc1+/–) 15.Nc4 Be7 16.Rfc1 Qd8 (16...Qb7 17.Nfe5 Ne5 18.de5+=) 17.Nce5 Ne5 18.Ne5 Bd6 19.Nc6 Qe8 (19...Qc7 20.Kh1+/–) 20.Ba3 (20.e4 Bf4 21.Rd1 Qd7+–) 20...Ba3+/– 21.Ra3 Qd7 22.Ra6 Nd5 23.Qd3 (23.Rca1 Rfc8 24.Qd2 Rc7+/–) 23...Rfc8 24.Qa3 (better is 24.Rca1+/–) 24...Nc7? (better is 24...Ne7! 25.Qa4 Nc6 26.bc6 Qc7+/–) 25.Ne7+– Kh8 (25...Qe7 26.Qe7 Na6 27.Rc8 Rc8+–) 26.Nc8 Na6 (26...Rc8 27.Ra7 h6+–) 27.Qf8 (27.ba6?! Rc8 28.Rc8 Qc8=; 27.Qa6 Rb8 28.Na7 h5+–) 1–0. algernon (2155) – tomy (2255), net–chess.com, 2003.

7.Be2 b6 8.c4 Bb7 9.a5 c5 (better is 9...ba5!? 10.Nc3 dc4 11.Bc4 Nbd7+=) 10.a6+= Bc8 11.0–0 Nbd7 12.d4 Ne4 13.Nbd2 Ndf6 14.Ne4 Ne4 15.dc5 Nc5 16.cd5 Qc7 17.de6 Be6 18.g3 (18.Qd4 f6+/–) 18...Rad8 19.Qd4 f6 20.Qh4 Bf5 21.Nd4 Bg6 22.Rac1 Rfe8 23.Bf3 Qb8? (better is 23...Qf7+/–) 24.Nc6 Qc8 25.Nd8 Qd8 26.Rfd1 Nd3 (26...Qe7+–) 27.Qc4 Kh8 28.Rd3 Bd3 29.Qd3 1–0. Ebert,Lutz – Schmidt,Achim, Mecklenburg VP LL2, 1998. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 Bd6 5.e3 c6 6.a4 0–0)

7.Be2 Re8 8.d4 Nbd7 9.0–0 e5 10.c4 ed4 11.Nd4 dc4 12.bc6 bc6 13.Nd2 (< 13.Nc6 Qc7 14.Nd4 Bh2 15.Kh1 Ba6–/+) 13...Ne5 14.Nc4 Nc4 15.Bc4 Bb7 (better is 15...Ng4 16.h3 Ne5=) 16.Nf5+/– Bc7 17.Qb3 Kh8 (17...Nd5 18.Bd5 (18.Bg7? Bc8–+) 18...cd5 19.Qb7+/– (19.Bg7? Bc8–+)) 18.Rfd1 (18.Bf6 Qf6 19.Qb7 Be5+–) 18...Qc8 (better is 18...Qb8 19.Bf7 Ba6 20.Bf6 gf6+–) 19.Nh6! Bh2 (19...gh6 20.Bf6) 20.Kh2 Ng4 21.Ng4 Qg4 22.Rd2 (better is 22.Rd4!? Qc8+–) 22...Rab8 23.f3 Qg5 24.Rad1 c5? 25.Qc3 Re3 26.Qe3! Qh4 27.Kg1 h6 28.Bf1 Bc6 29.Qe5 Rg8 30.Rd8! f6 31.Rg8 Kg8 32.Rd8 Kh7 33.Bd3 g6 34.Qe7# 1–0. Bigalke,Andre – Schubert,J, Wichern op 4th, 1997.

7.c4 dc4

8.Bc4 cb5

9.ab5 b6 10.0–0 (10.Qe2 Bb7=) 10...Bb7= 11.d4 (11.Qe2 h6=) 11...Nd5 (11...a5 12.ba6 Na6 13.Qe2=) 12.Nc3 (12.Qe2 Nb4+=) 12...Nc3= 13.Bc3 Nd7 (13...Qc7 14.Ra4=) 14.Qe2 (14.d5 Qc7 15.Qd4 e5+=) 14...Nf6 (14...Qc7 15.h3=) 15.Ra4 (15.Ne5 Ne4 16.Bb2 Be5 17.de5 Qh4+=) 15...Qc7= 16.Bb4 (better is 16.Ne5!?=) 16...Bf3+= 17.Qf3?? (better is 17.Bd6!? Be2 18.Bc7 Bf1 19.Kf1–/+) 17...Bh2 (better is 17...Qc4 18.Bd6 Qa4 19.Bf8 Rf8–+) 18.Kh1–/+ Bd6 (18...Qc4!? 19.Rfa1 Rfe8–/+) 19.Rfa1 (19.Bd6 Qd6 20.Rfa1 Qd7+=) 19...Bb4+= (worse is 19...Qc4 20.Bd6 Qb5 21.Bf8 Rf8 22.Ra7+/–) 20.Rb4 Nd5 (better is 20...Rfd8!?+=) 21.Bd5+= ed5 22.Qd5 Qc3 (22...Qe7 23.Rba4+=) 23.Rba4+/– Rfc8 (23...Qc7 24.Qc6 Qe7 25.Kg1+/–) 24.R1a2 (24.Qf5 Rc7+/–) 24...g6 (24...Qc1 25.Kh2 Qc7 26.g3+/–) 25.Qb7 (25.Ra1 h6+/–) 25...Qc7 (25...Qb3 26.Ra1 Kg7 27.Qd7+=) 26.Qc7+/– Rc7 27.Ra6 (27.Kh2+/–) 27...f5 (better is 27...Rd8!?+/–) 28.Rb6!+– Rc1 (28...ab6 A pinning theme 29.Ra8) 29.Kh2 Rb1 (29...Rc7 30.Rc6 Rb7 31.Ra5+–) 30.Rb7 Rb4 (30...a5 31.Rc2+–) 31.d5 (31.Ra6 Rb2+–) 31...a6 (31...a5 32.d6 Rb1+–) 32.Ra6 Ra6 (32...Rd8+–) 33.ba6 Ra4 (33...Rh4 34.Kg3 Rg4 35.Kf3+–) 34.a7 (34.a7 Kf8 35.Rh7+–) 1–0. Trkn – paul stanley, itsyourturn.com, 2000.

9.ab5 Bd7 10.0–0 b6 (10...Qe7 11.d3 (11.d4 Rc8 12.Qe2 Nd5 13.Ba3 a5 14.ba6+=; 11.Nc3 e5 12.d3 Be6 13.Ng5 Bc4 14.dc4=; 11.Ba3 e5 12.d4 e4 13.Ne5 Be6 14.Qb3=; 11.Bd4 a6 12.Bf6 Qf6 13.Nc3 Rc8 14.Ne4=) 11...e5 12.Nbd2 a6 13.Qb3 Rc8 14.Ng5+=; 10...a6 11.Qe2 (11.d3 Nd5 12.Ne5 Qc7 13.Qh5 Nf6 14.Qg5=; 11.Qb3 Bc8 12.Rc1 a5 13.Be5 Be5 14.Ne5+=) 11...Qe7 12.Be5 Ng4 13.Bd6 Qd6 14.d4+=) 11.Qe2 (11.Qc2 Bc8 12.e4 Bc5 13.d4 Be7 14.Bd3+/–) 11...Qc7 (11...Qe7 12.e4 e5 13.d4 Bg4 14.de5+=) 12.Rc1 (12.Bf6 gf6 13.d4 Bc8 14.Rc1+/–) 12...Bc5 (12...Rc8!?+/– 13.Na3 Qb7 14.Bf6+/–) 13.d4+– Be7 (13...Bd6 14.Be6+–) 14.Be6! Be6?? (14...Be6 15.Rc7; 14...fe6 15.Rc7) 15.Rc7 Nbd7 16.e4 1–0. Van Rooijen,Peter – Bettley,Andrew, internet, 2001.

9.ab5 Bd7 10.d3 A) 10...Re8 11.0–0 (11.Be5 Qe7 12.0–0 Rc8 13.Nc3 Be5 14.Ne5+=; 11.Bd4 a5 12.Ne5 Qc7 13.f4 Bc5 14.Bc5+=; 11.Qb3 Qe7 12.0–0 Rc8 13.Rc1 a6 14.Nbd2+=) 11...e5 12.Nbd2 Bg4 13.Qb3 Re7 14.Ng5+=; B) 10...Qe7 11.Bd4 (11.Ne5 Bb4 12.Nd2 Nd5 13.Nd7 Nd7 14.Bd5=; 11.0–0 e5 12.Qe2 Bg4 13.h3 Bf5 14.e4+=; 11.Qe2 e5 12.0–0 Bg4 13.h3 Bf5 14.e4+=) 11...Bc5 12.Bc5 Qc5 13.Qb3 Rc8 14.0–0+=.

9.ab5 Bd7 10.Bd4 A) 10...a5 11.d3 (11.0–0 Qe7 12.d3 e5 13.Bc3 b6 14.Nbd2=) 11...Re8 12.Ne5 Qc7 13.f4 Bc5 14.Bc5+=; B) 10...a6 11.Qe2 (11.0–0 Qe7 12.Bf6 Qf6 13.Nc3 Rc8 14.Ne4=; 11.d3 Qe7 12.Ne5 Bb4 13.Nd2 Nd5 14.ba6+=; 11.Nc3 Qe7 12.Ne5 Rc8 13.Qf3 Be8 14.d3=; 11.Qb3 Qe7 12.Ne5 Rc8 13.Nc3 Be5 14.Be5=) 11...Qe7 12.Ne5 Rc8 13.Nc3 Bc5 14.Bc5+=.

9.ab5 Bd7 10.Qe2 Qe7 11.Be5 (11.d4 Rc8 12.0–0 Nd5 13.Rc1 a5 14.e4+=) 11...a5 12.Nc3 Ne8 13.0–0 f6 14.Bd4 +/–.

9.ab5 Nbd7 10.0–0 Qc7 11.Be2 (11.d3 e5 12.Qe2 Nb6 13.Nbd2 Rd8 14.Bb3=; 11.Qe2 Ng4 12.Rc1 Qb8 13.h3 Nge5 14.Be5+=) 11...Ne5?? (11...e5 12.d3= (12.Qc1 Qb8 13.d3 Nb6 14.Nc3=) 12...Rd8 13.Nbd2 Nb6 14.Ra5=) 12.g3?? (12.Be5 Be5 13.b6 (13.Ne5?! Qe5 14.d4 Qc7+=) 13...Bh2 14.Nh2 Qb6 15.d4+/–) 12...Nf3+= 13.Bf3 Qe7 14.d4 Rd8 15.Nd2 a6 16.Qe2 a5 17.Nc4 Bb4 18.Nb6 Rb8 19.Rfc1 Bd7 20.Nd7 Qd7 21.Ba3 Ba3 22.Ra3 b6 23.Rc6 Rdc8 24.Rac3 Nd5 25.Bd5 ed5 26.Qc2 Rc6 27.Rc6 h6 28.Kg2 Qe7 29.Rc8 Rc8 30.Qc8 Qf8 31.Qc6 (better is 31.Qd7!?+/–) 31...Qd8= 32.Kf1 a4 33.Qc2 a3 34.Qa4 Qe8 35.Qa3 Qb5 36.Kg2 Qa5 37.Qc1 Qa8 38.h4 (38.Qc7!?+=) 38...Qb7= 39.Kf1 Kf8 40.Qb2 b5 41.Qb4 Ke8 42.Ke1 Qc6 43.Kd2 Kd7 44.Qf8 Qf6 45.Ke2 h5 46.Qc5 Qc6 47.Qc6 Kc6 48.Kd3 b4 49.Kc2 Kb5 50.Kb3 f5 51.f3 (better is 51.Ka2–+) 51...g6 52.Ka2 (52.Kb2 Kc4 53.Kc2 b3 54.Kd2–+) 52...Kc4 53.f4 Kd3 54.Kb3 Ke3 55.Kb4 Kd4 56.Kb5 Kc3 0–1. Del Val,J – Roelli,Stefan, Pontresina SEM–HT III, 2000.

9.ab5 Nbd7 10.0–0 e5 11.d3 Qe7 12.Nbd2 Nb6 13.Ra2 Bf5 14.Qa1 =.

9.ab5 Nbd7 10.d3 Qe7 11.0–0 (11.Nbd2 Nb6 12.0–0 e5 13.Ra2 Bf5 14.Qa1=; 11.Ba3 Nb6 12.0–0 Nc4 13.dc4 Ba3 14.Na3=; 11.Qe2 e5 12.0–0 Nb6 13.Bb3 Bg4 14.h3=) 11...e5 12.Nbd2 Nb6 13.Ra2 Bf5 14.Qa1 =.

9.ab5 Nbd7 10.d4 A) 10...Nb6 11.Bd3 a6 12.Nc3 Nbd5 13.0–0 Nb4 14.Ba3+=; B) 10...Nd5 11.0–0 (11.Ba3 N7b6 12.Bd3 Nb4 13.Bb4 Bb4 14.Nbd2+=; 11.Bd5 ed5 12.Ba3 Nb6 13.Qc2 Nc4 14.Bd6=) 11...a6 12.Nc3 N7b6 13.Bd3 Nc3 14.Bc3+=; C) 10...a6 11.0–0 (11.Nc3 e5 12.ba6 ba6 13.Qe2 Bb7 14.de5=; 11.Bd3 Qe7 12.Ba3 Ba3 13.Ra3 e5 14.de5=; 11.ba6 ba6 12.Ba3 Qc7 13.Bd6 Qd6 14.0–0=; 11.Nbd2 Nb6 12.Ba3 Ba3 13.Ra3 Nc4 14.Nc4=) 11...Nb6 12.Bd3 ab5 13.Ra8 Na8 14.e4=.

9.ab5 Qe7

10.0–0 e5 11.b6 Na6 12.ba7 Ra7 13.Nc3 Bd7 14.d4 =.

10.0–0 e5 11.Qc2 Nbd7 12.Nc3 Nb6 13.Bb3 e4 14.Nd4 =.

10.0–0 e5 11.Qc2 Nbd7 12.Nc3 Nb6 13.Bb3 Bg4 14.Ng5 =.

10.0–0 e5 11.d3 Nbd7 12.Nbd2 Nb6 13.Ra2 Bf5 14.Qa1 =.

10.0–0 e5 11.d3 Bg4 12.h3 Bf5 13.Nh4 Be6 14.Qf3 =.

10.d3 Nbd7

11.0–0 e5 12.Nbd2 Nb6 13.Ra2 Bf5 14.Qa1 =.

11.Ba3 Nb6 12.Bd6 Qd6 13.0–0 e5 14.Nbd2 =.

11.Qb3 e5 12.0–0 Nb6 13.Ba3 Nc4 14.dc4 =.

11.Qc2 e5 12.Nc3 Nb6 13.Bb3 Bg4 14.Qe2 +=.

11.Nbd2 Nb6 12.0–0 e5 13.Ra2 Bf5 14.Qa1 =.

11.Qe2 Nb6 12.Be5 Bb4 13.Nbd2 Nfd7 14.Bb2 =.

10.d3 e5

11.0–0 Nbd7 12.Nbd2 a6 13.Ra2 a5 14.Qa1 +=.

11.0–0 Bg4 12.h3 Bf5 13.Nh4 Be6 14.Qf3 =.

11.b6 Nc6 12.0–0 Bg4 13.ba7 Ra7 14.Ra7 =.

11.Nc3 Bg4 12.0–0 Rc8 13.h3 Be6 14.Be6 =.

11.Nbd2 Bg4 12.Ra2 Nbd7 13.Qa1 Bf3 14.Nf3 =.

11.Qe2 Nbd7 12.0–0 Nb6 13.Bb3 Bg4 14.Rc1 =.

11.Qe2 Nbd7 12.0–0 Nb6 13.Bb3 Bg4 14.h3 =.

9.ab5 Re8

10.d4 a5 11.0–0 b6 12.Nc3 Bb7 13.Ba3 Bc7 14.Qe2 =.

10.d4 a5 11.0–0 b6 12.Nbd2 Bb7 13.Ba3 Ne4 14.Ne4 +=.

10.d4 a5 11.Nc3 b6 12.0–0 Bb7 13.Ba3 Bc7 14.Qe2 =.

10.d4 a5 11.Nbd2 b6 12.0–0 Bb7 13.Ba3 Qe7 14.Bd6 +=.

10.d4 a6

11.0–0 b6 12.Nc3 Re7 13.e4 Bb4 14.d5 +=.

11.0–0 Re7 12.Nc3 b6 13.e4 Bf4 14.Ne2 +=.

11.Nc3 Nbd7 12.0–0 Nb6 13.Bd3 Nbd5 14.Ne5 +=.

11.Nc3 Re7 12.0–0 b6 13.e4 Bb4 14.d5 +=.

11.Qe2 Re7 12.e4 Nd5 13.0–0 Nf4 14.Qd2 +=.

11.Ne5 Nbd7 12.Qe2 Qc7 13.f4 Nd5 14.Kf2 =.

10.d4 Qc7

11.Qb3 b6 12.0–0 Bb7 13.Ne5 a5 14.ba6 =.

11.Nbd2 a6 12.0–0 Ng4 13.h3 Nf6 14.Qe2 +=.

11.Nbd2 Nbd7 12.0–0 Rd8 13.Qe2 Nb6 14.Bd3 +=.

11.Qd3 Nbd7 12.Ba3 Nb6 13.Bd6 Qd6 14.Nbd2 =.

11.Qe2 Bb4 12.Bc3 Bd6 13.0–0 Nd5 14.Ba5 +=.

11.Qe2 Bb4 12.Nbd2 Ne4 13.Bd3 Nd2 14.Nd2 +=.

10.d4 Nbd7

11.0–0 a5 12.Ba3 Bc7 13.Nc3 Ng4 14.Qb3 +=.

11.0–0 a6 12.Qe2 a5 13.Ba3 Bc7 14.Nc3 +=.

11.Ba3 Qc7 12.Qc2 a5 13.0–0 Nb6 14.Bd3 =.

11.Ba3 Be7 12.0–0 a5 13.Nbd2 Nb6 14.Bd3 +=.

10.d4 Re7

11.0–0 a6 12.Nc3 b6 13.e4 Bb4 14.d5 +=.

11.Ba3 a6 12.Bd6 Qd6 13.0–0 b6 14.Qe2 =.

11.Nbd2 a6 12.0–0 b6 13.ba6 Rea7 14.e4 =.

11.Qd3 a6 12.Nc3 b6 13.ba6 Rea7 14.0–0 =.

11.Bd3 a6 12.0–0 b6 13.e4 Bf4 14.Ne5 +=.

11.Bd3 a6 12.Ba3 b6 13.Bd6 Qd6 14.0–0 =.

11.Qe2 a6 12.0–0 Rc7 13.Nc3 a5 14.b6 +=.

11.Ne5 Nbd7 12.Nd2 Qc7 13.0–0 a5 14.f4 +=.

7.c4 Re8

8.Qc2 Nbd7 9.bc6 bc6 10.cd5 cd5 11.Qc6 +=.

8.Qc2 e5 9.c5 Bc7 10.Be2 Nbd7 11.0–0= Nf8 (11...e4 12.Nd4=) 12.d3 (12.d4 e4 13.Nfd2 Bg4 14.Bg4 Ng4+=) 12...Ng6 13.Nbd2 Bd7 (13...Qe7 14.Rfb1=) 14.d4 (14.Rfb1 Bf5=) 14...e4+= 15.Ne1 Ng4 16.Bg4 (16.g3 Qg5+=) 16...Bg4 17.Nb3 (17.Nb1 Qg5 18.Nc3 Nh4 19.bc6 Ng2–+) 17...Qh4 (17...Qg5 18.bc6 bc6 19.Nc1–/+) 18.g3 (18.h3 Bd7–/+) 18...Qh3 (18...Qh5 19.bc6 bc6 20.Ng2–/+) 19.Nc1 (19.Ng2 Bf3 20.Ne1 Nh4–+) 19...Nh4 (19...Qh5 20.Ng2–/+) 20.Ne2?? (better is 20.f4–/+) 20...Nf3 0–1. hal1958 – faramarzB, playchess.de, 2002.

8.Qc2 e5 9.c5 Bc7 10.Be2 Nbd7 11.d3 Qe7 12.Ba3 Qe6 (better is 12...d4!? 13.e4 Nh5–/+) 13.Nbd2= Qg4 14.bc6 bc6 (14...Qg2 15.Rg1 Qh3 16.Rg3+–) 15.Ne5 (15.0–0!?=) 15...Qg2–/+ 16.Bf3 Qh3 17.Nc6 Ne5 18.Ne5 Be5 19.Bb2 Bg4 20.Bg4 Ng4 (20...Qg4?! 21.Be5 Re5 22.Qd1+=) 21.Be5 Re5 22.Qc3?? (better is 22.Rf1 Nf2 23.Rf2 (23.Kf2?? Qe3 24.Kg2 Qe2 25.Kh1 Rh5–+) 23...Re3 24.Kd1 Qg4 25.Nf3–+) 22...Nf2! 23.Nf1 (23.Kf2 Qe3 Mate attack) 23...Re3 24.Ne3 Qe3 (24...Nh1?! 25.Qe5+=) 25.Kf1 Nh1 (25...Nh3 26.Qc2 Re8 27.Qb2 Qf3 28.Qf2 Qf2) 26.Kg2 (26.Qc2–+) 26...Nf2 27.Re1 Qd3 28.Qc1 (28.Re3 Qc3 29.Rc3 Ne4–+) 28...Ne4 29.c6 Rc8 30.c7 h5 31.Kg1 Qd4 32.Kh1 (32.Qe3 Qf6 33.Rc1 d4 34.Qe4 Qg5 35.Kf2 Qc1–+) 32...Nf2 33.Kg2 Nd3 34.Re8 Re8 35.c8Q Qf2 36.Kh1 Rc8 0–1. Samoun,F (2240) – Gantner,L (2210), 90th ch–Paris IdF, 2015.

8.Qc2 e5 9.c5 Bc7 10.Be2 Bg4 11.0–0 +=.

8.Be5 a6 =.

7.Be2 Nbd7

8.0–0 Qc7 9.h3 e5 10.d4 e4 11.Nfd2 h6 (11...a6 12.c4+=) 12.c4= Re8 13.Nc3 Nf8 14.bc6 bc6 15.cd5 cd5 16.Nb5 Qe7 17.Nd6 Qd6 18.Ba3 Qd8 19.Nb3 Ne6 20.Qd2 Bd7 21.Bb4 Qb6 22.Nc5 Nc5 23.dc5 Qe6 24.Bc3 Bc6 25.Qd4 Qe7 26.Rfb1 Reb8 27.Rb8 Rb8 28.Qe5 Qe5 29.Be5 Rb4 30.Bb5 (30.Bb5 Bb5 31.ab5 Rb5 32.c6+/– (32.Ra7?! Rc5 33.g4 Rc2+=)) 1–0. pcmvr (2845) – kinderchocolate (2235), net–chess.com, 2012.

8.0–0 e5 9.Nh4 Nb8 10.Nf3 Qc7 11.Ba3 +=.

8.0–0 Qe7 9.d4= e5 10.de5 Ne5 11.Be5 Be5 12.Ne5 Qe5 13.Nd2 Bf5 14.Nf3 Qc3 15.Nd4 Bd7 16.a5 c5 17.Nf3 Bf5 18.Bd3 Bg6 (18...Be4 19.Qd2 Qd2 20.Nd2=) 19.Bg6+= hg6 20.Re1 Rad8 21.a6 b6 22.Rb1 Ne4 23.Rb3 Qf6 24.Qa1 Rfe8 25.Qf6 gf6 26.Rd1 f5 27.Rbd3 Nf6 28.Kf1 (28.c4 Re4 29.Nd2 Re7+=) 28...Re4 29.c3 Kg7 30.h3 Rh8 31.Nd2 (31.Rc1=) 31...Ree8 (better is 31...Ra4!?=) 32.c4+/– dc4 33.Nc4 Re4 34.Rc1 Rhh4 35.Nd6 Rb4 36.Rc2 (36.f3!?+=) 36...Rh8 37.f3 (37.Ke2 Ne4=) 37...Ne8+= 38.Nc8 (38.Nc4 Nc7+= (worse is 38...Rb5 39.Rd7+/–)) 38...Rb5–/+ 39.Na7 Ra5 (39...Rb1!? 40.Kf2 Nc7–/+) 40.Rb3 Ra6 41.Nc8 Nf6 42.Nb6 Rb8 43.Rcb2 Ra1 44.Ke2 Rg1 45.Kd3 Ne8 (45...g5 46.Rb5=) 46.Rc3+= c4 (46...Rd1 47.Ke2 Rd5+/–) 47.Rc4+/– Nd6 48.Rc6 (48.Rcb4 g5+/–) 48...Ne8 49.Rc8 Rc8 50.Nc8 Nc7 51.Rd2 Ne6 52.Nd6 Kf8 53.Kc2 Ke7 54.Nc8 Ke8 55.Nb6 Ke7 56.Nd5 Ke8 57.Kc3 Kf8 58.Rb2 Kg7 59.Rc2 Kf8 60.Kc4 Kg7 61.Kd3 Kf8 62.Rb2 Kg7 63.Ra2 Kf8 64.Kc3 Kg7 (64...Kg7 65.Re2 Rc1 66.Rc2 Rg1+/–). mrkt (2135) – Lefevre (2115), GameColony.com, 2002.

8.Nc3 e5 9.0–0 Qc7 10.bc6 bc6 11.Ba3 +=.

8.c4 e5 9.0–0 e4 10.Nd4 c5 11.Nf5 Be5 12.Bc3 g6 (12...Re8 13.a5+=) 13.Be5 Ne5 (worse is 13...gf5 14.Bb2+/–) 14.Ng3 d4 15.ed4 (15.Qb3 h5 16.f4 Neg4+=) 15...Qd4–/+ 16.Nc3 Re8 17.a5 Be6 (17...Bf5 18.Qc2–/+) 18.Qc2+= Bc4 (18...Bf5 19.Ra4+=) 19.Ra4 Bd3 20.Rd4 Bc2 21.Rd6 Re6 22.Re6 fe6 23.Rc1 Bd3 24.Bd3 Nd3 (24...ed3 25.Na4 c4 26.f4=) 25.Rc2 Nd5 (25...Rd8 26.Nce4 Ne4 27.Ne4=) 26.Na4 (26.Nce4 b6+=) 26...b6+= 27.Ne4 Rd8 (27...Kf8 28.Kf1+=) 28.Kf1= h6 29.g3 Ne5 30.Ke2 g5 31.Rc1 g4 (31...Kf8 32.h3=) 32.h3 Nf3 (32...h5 33.Ng5=) 33.hg4 Nd4 34.Kf1 (34.Ke1 Nb5 35.Rb1 Nd6=) 34...Nb5 35.Nb2 Kf8 (35...Nd4 36.Rb1=) 36.Nc4+= Nd4 37.ab6 ½–½. mrkt – Lork, internet, 2006.

8.d4 Qa5 9.Nbd2 =+.

8.d4 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 =.

8.d4 c5 9.0–0 b6 (9...cd4 10.ed4 Re8 11.Re1=) 10.c4 dc4 (10...a6 11.Nc3=) 11.Nbd2 (11.dc5 Nc5 12.Bc4 Bb7=) 11...cd4 (11...c3 12.Bc3 Nd5 13.Bb2=) 12.Nc4+= Bc7 13.Nd4 (13.Qd4 a6+=) 13...Bb7 (13...Nd5+=) 14.Bf3 (14.Nc6!? Qe8 15.a5+/–) 14...Bf3 (14...Bh2 15.Kh1 Bf3 16.Qf3=) 15.Qf3 (15.Nf3 a6 16.Qd4=) 15...e5 (better is 15...Bh2!? 16.Kh2 Qc7 17.Kg1 Qc4=) 16.Nc6+/– Qe8 17.Qf5 e4 (17...a6 18.Ba3 Nc5 19.Bc5 bc5 20.Rad1+/–) 18.Ba3+– Nc5 19.Bc5 bc5 20.Qc5 Nd7 21.Ne7 Kh8 22.Qc7 Qe7 23.Rfd1 (23.Nd6 Qe6+–) 23...Rfd8 (23...Qe6 24.Rd6 Rfc8 25.Qd7 (25.Rd7?! Rc7 26.Rc7 g5+=) 25...Qc4 26.Rad1+–) 24.Nd6 Qe6? (24...Kg8+–) 25.Nb7 Qf6 (25...Rac8 26.Nd8 Rc7 27.Ne6 fe6+–) 26.Nd8 Rd8 27.Rac1 Qe7 (27...g6 28.Rd7 Rd7 29.Qd7+–) 28.Rd4 (28.Qd7 Qd7 (worse is 28...Rd7 29.Rc8 Qd8 30.Rd8 Rd8 31.Rd8) 29.Rd7 Rb8 30.Ra7 h5 31.Rf7 Kg8+–) 28...f5 (28...Kg8 29.Rcd1 h6 30.Qa7+–) 29.Rcd1 (29.Qd7 Qd7 (29...Rd7?? 30.Rc8 Qd8 31.Rd8 Rd8 32.Rd8) 30.Rd7 Rb8+–) 29...Qg5 (29...h6+–) 30.Rd7 Rg8 31.Rd8 h5 32.Rg8 (better is 32.Qc8! Rd8 33.Rd8 Qd8 34.Qd8 Kh7+–) 32...Kg8 33.Qd8 Qd8 34.Rd8 Kf7 35.Rd7 Kf6 (35...Ke8 36.Ra7 Kd8+–) 36.Ra7 g5 37.b6 f4 38.b7 Kf5 39.Ra5 Kg4 40.b8Q Kh4 41.Qc8 g4 42.Qd8 1–0. Fichte,Wolfgang – Poetsch,Hagen, Bad Zwesten op 7th, 2003.

8.d4 Re8 9.Nbd2 e5 10.de5 Ne5 11.0–0 Qc7 12.g3 (12.Be5 Be5 13.Ne5 Qe5=) 12...Bh3 13.Re1 c5 14.Bf1 Bg4 15.Bg2 Rad8 16.h3 Bh5 17.g4 Bg6 18.Nh2?? (better is 18.Ne5 Be5 19.Be5 Qe5 20.f4=) 18...Nc4–+ 19.Nc4 (19.Bf6 Bh2 (19...gf6?! 20.Nhf3=) 20.Kh1 gf6 21.Nc4 dc4–+) 19...Bh2 (19...dc4?! 20.Nf3 Bh2 21.Nh2 Rd1 22.Red1–+) 20.Kh1 dc4 21.f4 (21.Qf3 Ne4 22.Red1–+) 21...Rd1 22.Rad1 (22.Red1 Bc2 23.Rdc1 Bb3 24.Kh2 Re3–+) 22...Bg3 23.Re2 (23.f5 Be1 24.Bf6 Bf2–+) 23...Be4 (23...Bf4 24.Bf6 gf6 25.Rde1–+) 24.Be4 (24.Be5 Qe7–+) 24...Ne4 25.Be5 Re5 (better is 25...Qa5!? 26.Kg1–+) 26.fe5 Nf2 27.Kg2 (27.Rf2 Bf2 28.Kg2 Be3–+) 27...Nd1 28.Kg3 Qe5 29.Kf3 Nc3 30.Re1 Qe4 31.Kf2 Qc2 32.Kf1 Qh2 (32...Ne4 33.Re2 Qd1 34.Kg2 Qe2 35.Kh1 Qf2 36.a5 Ng3) 33.e4–+ Ne4! 34.Re4 Qh1 0–1. Barrow,Aziz – Ievlev,Yevgeny, Internet Section, 2004.

6.Nf3 Qb6

7.a5 Qc7 8.Bf6 gf6 9.c4 cb5 10.cb5 Nd7 11.Be2 Rg8 =.

7.a5 Qd8 8.Nc3 (8.Be5 0–0 (8...Be5 9.Ne5 Nbd7 10.Nf3 0–0 11.d4 Qe7=) 9.Bd6 Qd6 10.Nc3 Ne4 11.Ne4 de4+=; 8.Ne5 0–0 (8...Nbd7 9.f4 Qc7 10.Ng4 Be7 11.Nf6 Bf6=; 8...a6 9.b6 0–0 10.Bd3 Nbd7 11.f4 Nc5=) 9.f4 Ne4 10.Qh5 f6 11.Nf3 Bb4+=) 8...Bd7 (8...e5 9.Be2 0–0 10.0–0 a6 11.b6 c5=) 9.Bd3 (9.bc6 bc6 10.a6 0–0 11.d4 Qb6=) 9...Bb4 (9...e5 10.Be2+= Qc7 11.Ba3 c5=) 10.a6= b6 (10...ba6 11.ba6 0–0=) 11.Ne5 (11.0–0 0–0=) 11...Bc3 (11...cb5=) 12.Bc3 cb5 13.Qf3 Qc8 (13...0–0 14.0–0+=) 14.Qg3 (better is 14.Ng4 Nh5 15.Qh3+–) 14...Ne4?? (better is 14...0–0+=) 15.Qg7 Rf8 (15...Nc3 16.Qh8 Ke7 17.Qh7 Be8 18.Qh4 Kd6 19.Qb4 Qc5+–) 16.Be4 Nc6 (16...Qc5 17.Nd3 Qc3 18.Qc3 de4 19.Ne5+–) 17.Bh7 d4 (17...Ke7 18.Nf7! Rf7 19.Bf6 Kd6 20.Qf7+–) 18.Ng6! (18.Ng6 fg6 19.Bg6 Kd8 20.Qf8 Kc7 21.Qc8 Rc8 22.ed4+–) 1–0. pierre – kuntakinte, internet, 2008.

7.Bd3 A) 7...Nbd7 A1) 8.Nc3 e5 (8...0–0 9.bc6 bc6 10.Ba3 Ba3 11.Ra3 e5+=; 8...Qa5 9.0–0 0–0 10.bc6 bc6 11.Ba3 Ba3+=) 9.Bf5 e4 10.Nd4 c5 11.a5 Qc7+=; A2) 8.0–0 Qc7 (8...e5 9.Be2 cb5 10.ab5 0–0 11.Ba3 Ba3=) 9.Be2 0–0 10.d4 a6 11.Ba3 c5=; B) 7...Qc7 8.bc6 (8.Bf6 gf6 9.Nc3 e5 10.bc6 bc6 11.Be2 Rg8+=) 8...bc6 (8...Nc6 9.Bf6 gf6 10.Nc3 a6 11.Rb1 b6=) 9.Bf6 gf6 10.Nc3 e5 11.Be2 Nd7+=.

7.Be2 A) 7...Qc7 8.bc6 (8.Bf6 gf6 9.bc6 Nc6 10.Na3 e5 11.Nb5 Qd8=) 8...Nc6 (8...bc6 9.Bf6 gf6 10.c4 Rg8 11.g3 Nd7=) 9.Bf6 gf6 10.Na3 Ba3 11.Ra3 Rg8=; B) 7...Bd7 B1) 8.Na3 a6 (8...0–0 9.Bf6 gf6 10.bc6 bc6 11.c4 Qb2=; 8...Be7 9.0–0 0–0 10.Ne5 a6 11.f4 Ne4=) 9.a5 Qd8 10.b6 c5 11.Ne5 Nc6=; B2) 8.Bf6 gf6 9.Nc3 Rg8 10.0–0 Bb4 11.Rb1 Bc3=; C) 7...Nbd7 C1) 8.a5 Qc7 9.Nc3 0–0 10.0–0 e5 11.bc6 bc6+=; C2) 8.Nc3 e5 (8...Qc7 9.bc6 bc6 10.Ba3 Rb8 11.0–0 e5+=; 8...0–0 9.0–0 Qc7 10.bc6 bc6 11.Ba3 e5+=) 9.bc6 bc6 10.Ba3 c5 11.Rb1 Qc6+=; C3) 8.0–0 0–0 (8...e5 9.Nh4 0–0 10.Nf5 Bb4 11.f4 Re8=) 9.c4 cb5 10.ab5 dc4 11.Na3 Nd5=.

7.Bf6 gf6 A) 8.Nc3 Rg8 (8...Qa5 9.Rb1 a6 10.Be2 Rg8 11.0–0 e5=; 8...a6 9.a5 Qd8 10.b6 e5 11.Be2 Rg8=) 9.e4 d4 10.a5 Qc5 11.Na4 Qh5=; B) 8.Be2 e5 (8...Rg8 9.g3 e5 10.Nc3 a6 11.a5 Qd8=; 8...Qc7 9.Nc3 Rg8 10.bc6 bc6 11.g3 e5=; 8...Qa5 9.Nc3 Rg8 10.bc6 Nc6 11.0–0 a6=; 8...cb5 9.ab5 Rg8 10.0–0 e5 11.Nc3 Be6=; 8...Bd7 9.Nc3 Rg8 10.0–0 Qa5 11.e4 Bb4=; 8...h6 9.0–0 Rg8 10.Nc3 Qa5 11.Rb1 e5=; 8...Nd7 9.0–0 Ne5 10.Nd4 Ng6 11.bc6 bc6=) 9.Nc3 Rg8 10.bc6 bc6 11.0–0 Qa5+=; C) 8.a5 Qd8 (8...Qc7 9.c4 cb5 10.cd5 a6 11.Nc3 Qd8=) 9.Be2 Rg8 10.0–0 e5 11.Kh1 Qd7=; D) 8.d4 Rg8 (8...a6 9.bc6 Nc6 10.c4 dc4 11.Bc4 Rg8=) 9.a5 Qc7 10.Qd3 f5 11.Qb3 cb5=; E) 8.c4 dc4 (8...cb5 9.cb5 Bd7 10.Nc3 Rg8 11.g3 h6=) 9.Bc4 Rg8 10.0–0 Qc5 11.Qe2 Qh5=.

6.Nf3 Nbd7

7.Nc3 0–0 +=.

7.Nc3 Qc7 8.bc6 (8.Be2 e5 9.bc6 bc6 10.Ba3 d4 11.ed4+=) 8...bc6 9.Ba3 Rb8 10.Be2 e5 11.Bd6 +=.

7.Nc3 e5 8.Be2 (8.bc6 bc6 9.Be2 Rb8 10.Ba3 Ba3 11.Ra3+=) 8...0–0 9.0–0 Qc7 10.bc6 bc6 11.Ba3 +=.

7.d3 0–0 8.Nbd2 (8.Nc3 Nc5+=) 8...Qe7 (8...Qa5 9.Nd4–/+) 9.g3 (9.Be2 h6+=) 9...Re8 (9...e5!?–/+) 10.Bg2= e5 11.0–0 Nf8 12.e4 de4 (12...Ng6!?=) 13.de4+= Ng6 14.Qe2 Bd7 15.c4 (better is 15.Nc4!?+=) 15...a6+= 16.b6 a5 17.Bc3 (17.Nb3 Bb4+=) 17...Bc5 18.Rab1 Ra6 19.Nb3 Bb6 (19...Bb4 20.Bb4 ab4 21.a5–/+) 20.Rfd1+= h6 21.h3 c5 22.Ne1? (better is 22.Ra1!?+=) 22...Ba4–+ 23.Qa2 Bc6 24.Qc2 (24.Nd2 Rd8–+) 24...Bc7 25.Nd3 b6 26.Nd2 Raa8 27.Re1 Rad8 (27...Red8 28.Ra1–+) 28.Nf1 Qd7 (28...a4 29.Ra1 Ra8 30.Ra3–+) 29.Nc1 Nf8 (29...Ba4 30.Qa2–+) 30.Ne3 Ne6 31.h4? (better is 31.Nd5–+) 31...Nd4 32.Bd4 (32.Qd3–+) 32...ed4 (32...Qd4?! 33.Nd5 Rd5 34.ed5=; 32...cd4?! 33.Nd5–+) 33.Nf5 (33.Nd5 Bd5 34.cd5 Nd5–+) 33...d3 34.Qd2 (34.Nd3 Qd3 35.Qd3 Rd3–+) 34...Be4 (better is 34...Ne4 35.Re4 Be4 36.Ne3–+) 35.Nh6 (35.Ne3 Bg2 36.Kg2 Qe6–+) 35...gh6 36.Qh6 (36.Rb3 Bg2 37.Re8 Qe8 38.Kg2 Ne4–+) 36...Qf5 (36...d2 37.Qg5 Bg6 38.Nd3 de1Q 39.Re1 Qd3 40.Rc1–+) 37.Be4 (37.Qd2–+) 37...Ne4 38.Re4 Qe4 (38...Qe4 39.Nb3 d2 40.Nd2 Rd2–+) 0–1. Olcum,Ahmet (1945) – Burcu,Cagatay (1870), 6th World School–ch U15, 2010.

7.d4 0–0 8.Nbd2 c5 9.c4 b6 10.Be2 Bb7 11.0–0 Rc8 12.Rc1 Qe7 13.Qc2 cd4 14.ed4 dc4 15.Bc4 Bf4 16.Rcd1?? (better is 16.Ra1–/+) 16...Qb4 (better is 16...Bf3 17.Nf3 Qb4–+) 17.Qc3? (17.Rb1 Bf3 18.Bc1 Bh2 19.Kh2 Qd6 20.g3–+) 17...Bd2 (better is 17...Qc3 18.Bc3 Bf3 19.Nf3 Rc4–+) 18.Nd2–/+ Rc4?? (better is 18...Qc3 19.Bc3 Bd5 20.Bd5 Nd5–/+ (20...ed5?! 21.Bb4=; 20...Rc3?! 21.Bc6=)) 19.Qc4?? (better is 19.Nc4 Qc3 20.Bc3+/–) 19...Qb2–+ 20.Qb3 Qd4 21.Nf3 Qg4 22.h3 Qg6 23.Qd3 Be4 24.Qe3 Ne5 25.Qg5 (25.Ng5 Nc4 26.Qg3–+) 25…Nf3 (25...Nf3 26.Kh1 Qg5 27.Rd3 Bd3 28.Rd1 Be4 29.Rg1 Ng4 30.g3 Nh4 31.f3 Bf3 32.Rg2 Qc1) 0–1. Odermatt,Christoph – Tillmann,Marc (1945), Adelboden SUI, 1st Open, 2013.

7.d4 0–0 8.Bd3 +=.

7.d4 Ne4 8.Bd3= f5 9.0–0 Qf6 (9...0–0 10.Nbd2=) 10.c4 0–0 11.Ba3 (11.Nc3 Qg6=) 11...Ba3 (11...c5 12.Nbd2=) 12.Na3+= g5 (12...Qe7 13.Qc2=) 13.bc6 (13.cd5 ed5 14.bc6 bc6+=) 13...bc6+= 14.cd5 (14.h3 Rb8=) 14...cd5 (14...ed5 15.Nd2+=) 15.Rc1+= g4 (15...Rb8 16.Qe2+=) 16.Nd2+/– Qe7 17.Nb5 a6 18.Nc3 (18.Nc7 Rb8+/–) 18...Ndf6+= 19.Ne2 (19.Nde4 de4 20.Bc4 Qd6+=) 19...Bd7 20.Be4 (20.Nf4 Qb4 21.Ne4 fe4=) 20...fe4= 21.Rc5 Rfc8 22.Qc2 (22.Rc8 Rc8 23.Qb3 Qe8=) 22...e5 (22...Rc5 23.dc5 Rc8 24.Rc1+=) 23.Kh1 (23.Nb3!?=) 23...ed4+= 24.ed4 Qd6 (24...Rc5!? 25.dc5 Rc8+=) 25.a5 (25.Nb3 Rf8+=) 25...Rf8 ½–½. Olcum,Ahmet (1935) – Ari,Zeki (2205), Konya TUR, Team Ch, 2014.

7.Be2 Qb6 8.c4 dc4 9.Bc4 cb5 10.Bb5 0–0 11.0–0 a6 12.Bd4 Qc7 13.Bd7 Nd7 14.Nc3? (better is 14.e4+=) 14...e5–+ 15.Be5 (15.Rc1 ed4 16.Nb5 Qb6 (worse is 16...ab5 17.Rc7 Bc7 18.ab5–/+) 17.Nd6 Qd6 18.Nd4 Nf6–+) 15...Ne5 16.Rc1 Nf3 17.Qf3 Bh2 18.Kh1 Be5 19.d4 Bd6 20.Nd5 (20.Ne4 Qd7–+) 20...Qd8 21.Rb1 (21.Kg1–+) 21...Qh4 (21...Qh4 22.Qh3 Bh3–+) 0–1. Hal1958 – Cchoh928, playchess.de, 2004.

7.Be2 Qc7 8.d4 (8.0–0 0–0 9.d4 a6 10.Ba3 c5 11.c4=; 8.Nc3 e5 9.h3 0–0 10.0–0 c5 11.a5+=; 8.bc6 bc6 9.Ba3 c5 10.d4 0–0 11.0–0+=; 8.c4 dc4 9.Na3 Ba3 10.Ra3 cb5 11.ab5=) 8...0–0 9.Nbd2 cb5 10.ab5 Rd8 11.Ba3 =.

7.Be2 e5 8.0–0 (8.Nc3 Qc7 9.bc6 bc6 10.Ba3 d4 11.Bd6+=) 8...0–0 9.Nh4 Nb8 10.Nf3 Qc7 11.Ba3 +=.

7.c4 0–0

8.Na3 Qe7 9.d4 e5 10.c5 Bc7 11.Be2 e4 12.Nd2 Re8 13.Qb3 Nf8 14.Bc3 Ng6 15.h3 Nh4 16.Rg1 Nd7 17.0–0–0 Rb8 18.a5 b6 19.cb6 ab6 20.a6 cb5 21.Bb5 Ba6 22.Ba6+= Ra8 23.Bb4 Bd6=+ 24.Bd6 Qd6 25.Qa4? Nb8?? 26.Nb5 Qc6 27.Kb2? Ra6 28.Qb4 Nf5 29.Rc1–/+ Qd7 30.Nc7 Ra4 31.Qb3 Rf8 32.Nd5 Na6?? 33.Ne4 Rd8?? 34.Nf4 Rb4–+ 35.Qb4 Nb4 36.Rc3 Qa4 37.Ra1 Qb5 38.Rb3 g5! 39.Ne2 Qe2 40.Kc3 Nd5 0–1. poganinbezdom – py4o (1765), kurnik, 2011.

8.Nc3 Re8 9.Qc2 e5 10.cd5 cd5 11.Be2 h6 12.Qb1 Nb6 13.d3 Bg4 14.a5 Nbd7 15.h3 Be6 16.g4? (16.0–0 Rc8=) 16...Nh7 17.Bd1 d4 18.Ne4 Bb4 19.Ke2 Ndf6 20.Bd4 Ne4 21.Qb4 ed4 22.de4 d3 23.Kd2 Rc8 24.Qd4 Qd4 25.Nd4 Bc4 26.f3 Ng5 27.Rb1 Re5 28.Bb3 Rec5 29.Bc4 Rc4 30.h4 Ne6 31.Rhc1 Rc1 32.Rc1 Rc1 33.Kc1 Nc5 34.e5 Kf8 35.Kd2 g6 36.Kc3 Ke7 37.Nb3 d2 38.Nd2 Ke6 39.Kc4 Nd7 40.f4 b6 41.a6 f6 42.ef6 Nf6 43.g5 hg5 44.hg5 Ng4 (44...Nd5 45.Kd3 Nc7+–) 45.Kd4 Nf2 46.Nc4 Kd7 47.Nb6! Kc7 (47...ab6 48.a7 Passed pawn) 48.Nd5 Kb8 49.Ne7 1–0. Leon Manas,JF (1970) – Julien Casteleiro,A, Las Palmas ESP, Canaria Team Ch–B, 2012.

8.Bd3 cb5 A) 9.cb5 A1) 9...Qe7 10.Be2 (10.0–0 e5 11.Be2 e4 12.Nd4 Qe5 13.g3 Nc5 14.f4 Qe7 15.Rf2+=; 10.a5 e5 11.Be2 e4 12.Nd4 Nc5 13.f3 Qc7 14.b6 Qd8 15.ba7=; 10.Nc3 e5 11.Be2 d4 12.ed4 e4 13.Nh4 Nb6 14.Rc1 g5 15.a5–/+) 10...e5 11.a5 e4 12.Nd4 Nc5 13.Nc3 Qc7 14.h3 Be5 15.0–0=; A2) 9...Qe8 10.Be2 (10.0–0 e5 11.Be2 e4 12.Nd4 Qe5 13.g3 Nc5 14.f4 Qe7 15.Rf2+=; 10.Nc3 e5 11.Be2 Nb6 12.d3 a5 13.Rc1 Bg4 14.h3 Bf5 15.0–0+=; 10.a5 e5 11.Be2 e4 12.Nd4 Ne5 13.d3 Bg4 14.de4 Be2 15.Qe2+=) 10...e5 11.a5 e4 12.Nd4 Ne5 13.0–0 Nc4 14.Bc3 a6 15.ba6=; A3) 9...Qc7 10.Na3 (10.Nc3 e5 11.Rc1 Nc5 12.Be2 e4 13.Nd4 Bh2 14.Nb3 Bd6 15.Nc5+=; 10.Be2 e5 11.Nc3 e4 12.Nd4 Nc5 13.d3 Bg4 14.f3 Bh5 15.Nf5+=; 10.0–0 e5 11.Nc3 Nc5 12.Bc2 e4 13.d4 ef3 14.dc5 Bh2 15.Kh1 Be5–/+) 10...e5 11.Rc1 Qa5 12.Bc2 Qb4 13.Rb1 e4 14.Bf6 Qa3 15.Bb2+=; A4) 9...e5 10.Bc2 (10.Be2 e4 11.Nd4 Ne5 12.0–0 Nfg4 13.h3 Qh4 14.a5 Nh2 15.Re1+=) 10...e4 11.Nd4 Ne5 12.Ba3 a6 13.Bd6 Qd6 14.Nc3 ab5 15.Ncb5+=; B) 9.cd5 B1) 9...Nd5 10.ab5 (10.Bb5 a6 11.Bc4 N7b6 12.Be2 a5 13.0–0 Bd7 14.Nc3 Rc8 15.Nb5=; 10.Qc2 N7f6 11.Bb5 b6 12.d3 Bb7 13.0–0 Rc8 14.Qb3 Nd7 15.a5+=) 10...Nb4 11.Be2 e5 12.Nc3 Nf6 13.0–0 e4 14.Nd4 Qc7 15.f4=; B2) 9...ba4 10.de6 fe6 11.Nc3 a6 12.Qa4 Nc5 13.Qc2 Nd3 14.Qd3 Rb8 15.e4=; B3) 9...Nc5 10.Bb5 a6 11.d4 Nce4 12.Bd3 ed5 13.0–0 Re8 14.Ne5 Nd7 15.Nf3=; B4) 9...e5 10.e4 (10.Bb5 e4 11.Nd4 Nd5 12.d3 Qg5 13.0–0 Ne5 14.Kh1 Nd3 15.Bd3–/+) 10...ba4 11.Qa4 Qb6 12.Qc2 Ng4 13.Rf1 Nc5 14.Ba3 Bd7 15.Nc3+=; C) 9.ab5 e5 10.Be2 dc4 11.Na3 e4 12.Nd4 Ne5 13.Nc4 Nc4 14.Bc4 Ng4 15.Qc2+=.

8.Bd3 Nb6 9.Na3 A) 9...Re8 10.cd5 (10.bc6 bc6 11.Qc2 Ba6 12.Bh7 Nh7 13.c5 Bc5 14.Qc5 Na4 15.Qc6=; 10.Ne5 Be5 11.Be5 dc4 12.Bc4 Nfd7 13.Bd6 Nc4 14.Nc4 cb5 15.ab5+=; 10.Qc2 e5 11.c5 e4 12.cd6 Qd6 13.a5 ed3 14.Qd3 Nbd7 15.0–0=) 10...cd5 11.Ne5 Ne4 12.Qc2 Qc7 13.Be4 de4 14.Qe4 f6 15.a5+=; B) 9...Bd7 10.cd5 (10.0–0 Rc8 11.cd5 Nbd5 12.Nc4 Bb4 13.Nce5 Rc7 14.Nd7 Nd7 15.Qb1=; 10.Ne5 dc4 11.Nac4 Nc4 12.Nc4 Bc7 13.Ne5 cb5 14.ab5 Be8 15.Qc2=; 10.Ng5 e5 11.c5 Bc5 12.Be5 Ne4 13.Nf3 Qe7 14.Bb2 cb5 15.ab5+=) 10...Nbd5 11.0–0 Qe7 12.Nc4 Bc5 13.Nce5 cb5 14.ab5 Rfd8 15.Qb1=; C) 9...Rb8 10.0–0 (10.cd5 Nfd5 11.0–0 Nb4 12.Be2 a5 13.d3 f6 14.Qb3 Qe7 15.Rac1=; 10.Qc2 Nbd7 11.0–0 Qe7 12.a5 e5 13.c5 Nc5 14.Be5 Be5 15.Ne5+=; 10.Ng5 e5 11.c5 e4 12.cb6 ed3 13.ba7 Ra8 14.Qb3 Nd7 15.f4+=) 10...dc4 11.Nc4 Bh2 12.Nh2 Qd3 13.Nb6 ab6 14.Bf6 gf6 15.Qf3=; D) 9...cb5 10.Bf6 (10.ab5 Re8 11.Qc2 Bd7 12.Ng5 g6 13.Be2 Ba3 14.Ra3 dc4 15.Qc3+=; 10.cb5 Re8 11.Be5 Be5 12.Ne5 Qd6 13.f4 Nbd7 14.Nd7 Bd7 15.0–0+=) 10...Qf6 11.Nb5 Be7 12.Nc7 Rb8 13.cd5 Nd5 14.Nd5 ed5 15.Nd4+=.

8.Bd3 Nb6 9.c5 Bc5 10.bc6 (10.Qc2 Nbd7 11.bc6 bc6 12.Ne5 Ne5 13.Be5 Bd6 14.Bf6 Qf6 15.Bh7–/+) 10...bc6 11.Qc2 Nbd7 12.0–0 h6 13.Rc1 Qe7 14.Be2 Bb7 15.d4 =.

8.Bd3 Nb6 9.cd5 cd5 (9...Nfd5 10.Nc3 (10.Qc2 f5 11.0–0 Nb4 12.Qc3 Rf7 13.Be2 cb5 14.ab5 Rc7 15.Qb3=; 10.0–0 cb5 11.ab5 Qe7 12.Nc3 Nf6 13.Qc2 e5 14.Rac1 Bg4 15.Ng5=) 10...Bd7 11.0–0 cb5 12.ab5 Nb4 13.Ba3 f5 14.Be2 Qe7 15.d4+=; 9...Nbd5 10.0–0 (10.Nc3 Nb4 11.Bc4 e5 12.d3 Bg4 13.0–0 Rc8 14.h3 Bh5 15.g4=; 10.Be5 cb5 11.ab5 Be5 12.Ne5 Qd6 13.f4 Nd7 14.Nc4 Qc5 15.Nba3=; 10.Be2 a6 11.Nc3 cb5 12.ab5 Nc3 13.Bc3 Nd5 14.Bd4 Re8 15.Qb3=) 10...Bd7 11.Nc3 Rc8 12.Nd5 Nd5 13.Qb1 f5 14.Be2 Qc7 15.Rc1=; 9...cb5 10.de6 (10.ab5 Nfd5 11.0–0 Nf6 12.Qe2 Qe7 13.Bd4 Nfd7 14.Bc2 e5 15.Bb2=) 10...Be6 11.ab5 Nbd7 12.0–0 Nc5 13.Be2 Nb3 14.Ra4 Nc5 15.Rh4+=) 10.0–0 (10.a5 Nbd7 11.0–0 e5 12.Be2 Qc7 13.Qc1 Qc1 14.Rc1 a6 15.Ba3+=; 10.Qc2 Nbd7 11.0–0 e5 12.Be2 e4 13.Nd4 Nc5 14.Rc1 Ng4 15.f4=; 10.Qe2 Nbd7 11.0–0 e5 12.Bf5 e4 13.Nd4 Ne5 14.Ba3 Nd3 15.f3+=) 10...Qe7 (10...Nbd7 11.Be2 e5 12.d3 a6 13.Ba3 Qc7 14.Qd2 b6 15.Rc1=) 11.Nc3 (11.a5 Nbd7 12.Nc3 Rd8 13.Be2 e5 14.Qc2 a6 15.Rfc1=) 11...e5 (11...Nc4 12.Bc4 dc4 13.Qe2 Qc7 14.Rfd1 e5 15.d3=) 12.Ng5 (12.a5!? Nbd7 13.Be2= Re8 14.d4 e4 15.Nd2=) 12...h6+= (12...e4 13.a5 Nc4 14.Nd5 Bh2 15.Kh1=) 13.Nf3? (better is 13.a5 Nbd7 14.Nh3+= Nc5 15.Bc2–/+) 13...e4–+ 14.a5 Nbd7 (14...ed3?! 15.ab6 a5 16.ba6 Ra6 17.Ra6 ba6 18.Qb3+=; 14...ef3?! 15.ab6 fg2 16.Kg2+=) 15.Nd4 ed3 16.Nf5 Qe5 17.Nd6 Qd6 18.Qb3 (18.Ba3 Nc5 19.Na4 b6 20.ab6 ab6 21.Nc5 Ng4–/+) 18...Re8 19.Ba3 Qe5 20.f4 Qf5 21.Nd1 Nf8 22.Bb2 Qg6 23.f5 (23.Bf6 Qf6 (23...gf6?! 24.Qd5 Bf5 25.Nf2–/+) 24.Nf2 d4 25.Qd3 de3 26.de3 Be6–+) 23...Bf5 24.Bf6 gf6 (24...Qf6 25.Nf2 d4 26.e4–+) 25.Nc3 Rad8 26.Rf3 Kh7 27.Rg3 Qh5 (better is 27...Bg4!? 28.Nd5 Qf5–+) 28.Nd5–/+ Re6 29.Nf4 Qh4 30.Ra4 Qg3?? (better is 30...Re7+=) 31.hg3+– Re7 32.Nh5 Nd7 (32...Rc7 33.b6 ab6 34.Qb6+–) 33.Qd5 Bg6 34.Nf6! (34.Qb7?! Bh5 35.Rd4 Rb8 36.Qa7 Rb5 37.Rd7 Rd7 38.Qd7 Ra5 39.Qd3 f5+–) 34...Kg7 (34...Nf6 35.Qd8 Pinning (35.Qd8 Deflection)) 35.Rf4 (35.Qb7?! Kf6 36.Qa7 Re5+–) 35...Kf8 (35...Kf8 36.Qd6 Nf6 37.Qf6 Re3 38.Qd8 Re8+–). AsceticKingK9 – JAY2PLAY, ChessWorld.net, 2011.

8.Bd3 e5 A) 9.bc6 bc6 10.cd5 (10.Be2 e4 11.Nd4 Ne5 12.cd5 Nd5 13.f4 ef3 14.Nf3 Nf3 15.Bf3–/+; 10.Bf1 e4 11.Nd4 Ne5 12.cd5 Nd5 13.f4 ef3 14.Nf3 Bg4 15.Kf2–/+; 10.Bc2 e4 11.Nd4 c5 12.Nb5 Be5 13.Be5 Ne5 14.cd5 Bg4 15.Qc1–/+) 10...cd5 11.Bb5 a6 12.Bd7 Nd7 13.Ba3 Ba3 14.Na3 e4 15.Nd4+=; B) 9.cd5 B1) 9...cd5 10.Bc2 (10.Be2 e4 11.Nd4 Ne5 12.0–0 Nfg4 13.h3 Qh4 14.a5 Nh2 15.Re1+=) 10...e4 11.Nd4 Ne5 12.Ba3 a6 13.Bd6 Qd6 14.Nc3 ab5 15.Ncb5+=; B2) 9...e4 10.bc6 (10.dc6 bc6 11.bc6 Nb6 12.Bc2 ef3 13.Qf3 Nbd5 14.Bf6 Nf6 15.h3–/+) 10...Nc5 11.Bc2 ef3 12.Qf3 Be7 13.Bf6 Bf6 14.d4 Qa5 15.Nd2+=.

8.Bd3 Qe7 A) 9.cd5 A1) 9...ed5 10.Be2 (10.0–0 Nc5 11.Be2 Bg4 12.bc6 bc6 13.d4 Nce4 14.Ba3 Rab8 15.Bd6+=; 10.Bc2 a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1 c5 14.Nc3 Nb6 15.Re1+=; 10.Nc3 Nc5 11.Bc2 Nce4 12.bc6 bc6 13.Rb1 Re8 14.Ne4 Ne4 15.d3+=) 10...a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1 c5 14.Qc2 Re8 15.Rc1+=; A2) 9...cd5 10.a5 (10.Be2 e5 11.a5 e4 12.Nd4 Nc5 13.Nc3 Qc7 14.h3 Be5 15.0–0=; 10.0–0 e5 11.Nh4 Bc5 12.Nc3 e4 13.Be2 Qe6 14.d4 Bd6 15.g4+=; 10.Nc3 e5 11.Be2 d4 12.ed4 e4 13.Nh4 Nb6 14.0–0 g5 15.a5–/+) 10...Nc5 11.Be2 a6 12.Nc3 Bd7 13.0–0 Nce4 14.b6 Rac8 15.Ne4=; A3) 9...Nc5 10.Bf1 (10.Bc2 ed5 11.bc6 bc6 12.Ba3 Rb8 13.d4 Nce4 14.Bd6 Qd6 15.Qc1+=; 10.Be2 ed5 11.bc6 bc6 12.Ba3 Rb8 13.d4 Nb3 14.Bd6 Qd6 15.Ra2+=; 10.Bc4 ed5 11.Be2 Bg4 12.d4 Nce4 13.0–0 Bf3 14.gf3 Ng5 15.f4+=) 10...ed5 11.Ba3 cb5 12.Bb5 a6 13.Be2 Bd7 14.Nc3 Rac8 15.0–0+=; B) 9.Be2 B1) 9...dc4 10.Na3 (10.bc6 bc6 11.Na3 c3 12.dc3 e5 13.Nc4 Bc7 14.0–0 c5 15.Qc2+=; 10.Nc3 e5 11.bc6 bc6 12.Qc2 Rb8 13.Rb1 Ba6 14.Nh4 Qd8 15.0–0–/+; 10.Bc4 cb5 11.ab5 Nb6 12.Bb3 e5 13.Nc3 Bg4 14.d3 Bb4 15.0–0+=) 10...c3 11.dc3 cb5 12.Nb5 Bc5 13.Qb3 Rd8 14.0–0 e5 15.Rfd1=; B2) 9...Rd8 10.0–0 (10.cd5 Nd5 11.Nc3 Nc3 12.Bc3 cb5 13.ab5 e5 14.d3 Nf6 15.Qb3+=; 10.bc6 bc6 11.Nd4 Bb7 12.cd5 Nd5 13.Nc3 Nc3 14.Bc3 c5 15.Nb5+=; 10.d4 dc4 11.Bc4 e5 12.bc6 bc6 13.0–0 e4 14.Ng5 Nd5 15.Qh5–/+) 10...dc4 11.bc6 bc6 12.Bc4 Nb6 13.Be2 e5 14.Qc2 Rb8 15.e4=; B3) 9...cb5 10.cb5 (10.ab5 dc4 11.Na3 c3 12.dc3 Rd8 13.Nc4 Bc5 14.0–0 e5 15.Qc2=; 10.cd5 e5 11.ab5 Nb6 12.Nc3 e4 13.Nd4 Nfd5 14.Qc2 Nc3 15.dc3+=) 10...e5 11.Nc3 e4 12.Nd4 Be5 13.Ba3 Nc5 14.0–0 Qc7 15.h3=; B4) 9...e5 10.d3 (10.Nc3 dc4 11.bc6 bc6 12.Qc2 Rb8 13.Rb1 Ba6 14.Nh4 Qd8 15.0–0–/+; 10.cd5 Nd5 11.e4 Nf4 12.0–0 Qf6 13.d4 ed4 14.Bd4 Qg6 15.g3–/+; 10.d4 dc4 11.0–0 cb5 12.ab5 e4 13.Nfd2 Nb6 14.Ba3 Ba3 15.Ra3–/+) 10...dc4 11.dc4 e4 12.Nd4 Ne5 13.0–0 c5 14.Nc2 Rd8 15.Nd2+=; C) 9.0–0 C1) 9...cb5 10.cd5 (10.cb5 e5 11.Be2 e4 12.Nd4 Qe5 13.g3 Nc5 14.f4 Qe7 15.Rf2+=; 10.ab5 e5 11.cd5 e4 12.Nd4 Nb6 13.Bc2 Qe5 14.f4 ef3 15.g3+=) 10...ba4 11.de6 fe6 12.Qa4 Nc5 13.Qc2 Nd3 14.Qd3 e5 15.e4+=; C2) 9...a6 10.cd5 (10.Nc3 e5 11.Be2 dc4 12.bc6 bc6 13.Bc4 e4 14.Nd4 Ne5 15.Be2+=; 10.Be2 ab5 11.ab5 Ra1 12.Ba1 dc4 13.Bc4 e5 14.bc6 bc6 15.d3+=; 10.bc6 bc6 11.cd5 cd5 12.Nc3 e5 13.Be2 Rb8 14.Rb1 Qe6 15.Qc2+=) 10...ed5 11.Qc2 ab5 12.ab5 Ra1 13.Ba1 c5 14.Bf5 h6 15.Rc1=; C3) 9...dc4 10.Bc4 e5 11.bc6 bc6 12.d3 Rb8 13.Qc2 Nb6 14.Nbd2 Bg4 15.Bb3=; C4) 9...e5 10.cd5 (10.Be2 e4 11.Ne1 dc4 12.bc6 bc6 13.f3 Ne5 14.fe4 Rb8 15.Qc2+=; 10.bc6 bc6 11.cd5 cd5 12.Bb5 a6 13.Bd7 Bd7 14.Ba3 Bg4 15.Bd6–/+) 10...cd5 11.Be2 e4 12.Nd4 Qe5 13.g3 Nc5 14.f4 Qe7 15.a5+=; D) 9.bc6 bc6 (9...Nc5 10.Be2 bc6 11.Be5 Ba6 12.d4 Nce4 13.Bd6 Qd6 14.c5 Be2 15.Qe2=) 10.cd5 (10.0–0 Rb8 11.Qc2 e5 12.Bf5 dc4 13.Na3 e4 14.Nd4 Qe5 15.f4–/+; 10.Qc2 e5 11.Bf5 Rb8 12.cd5 Nc5 13.Bc3 cd5 14.d4 Nb3 15.de5–/+; 10.Be2 Rb8 11.Qc2 e5 12.Nc3 dc4 13.Rb1 Ba6 14.Nh4 Qd8 15.Nf5–/+) 10...cd5 11.Nc3 e5 12.Be2 Rb8 13.Rb1 a6 14.0–0 Qe6 15.Qc2+=.

8.Bd3 Re8 A) 9.cd5 A1) 9...cd5 10.Be2 (10.0–0 e5 11.Be2 a6 12.Ba3 Bb8 13.ba6 ba6 14.Nc3 e4 15.Nd4+=; 10.Nc3 e5 11.Be2 e4 12.Nd4 Be5 13.d3 Nc5 14.de4 de4 15.0–0+=; 10.Bc2 e5 11.0–0 e4 12.Nd4 Qc7 13.h3 Nc5 14.d3 Bh2 15.Kh1 Be5=) 10...Qe7 11.d4 e5 12.de5 Ne5 13.0–0 Nf3 14.Bf3 Bf5 15.Bd4=; A2) 9...Nc5 10.Be2 (10.Bc2 ed5 11.0–0 Bg4 12.h3 Bh5 13.bc6 bc6 14.d4 Nce4 15.Bd3+=; 10.Bf1 ed5 11.Be2 Bg4 12.0–0 Bf3 13.Bf3 Nd3 14.Bd4 c5 15.Bf6+=; 10.Bc4 ed5 11.Be2 Bg4 12.0–0 Bf3 13.Bf3 Nd3 14.Bd4 c5 15.Bf6+=) 10...ed5 11.0–0 Bg4 12.Qc2 Rc8 13.bc6 bc6 14.Nc3 Qd7 15.Rfc1+=; A3) 9...Nd5 10.0–0 (10.bc6 Nc5 11.Bc2 bc6 12.d4 Na6 13.Ne5 Be5 14.de5 Rb8 15.Bc3=; 10.Qc2 N7f6 11.Ng5 h6 12.Ne4 e5 13.Nf6 Qf6 14.Bh7 Kh8 15.Be4+=; 10.Ba3 Qf6 11.Ra2 Ba3 12.Ra3 cb5 13.ab5 Qe7 14.0–0 e5 15.Qb3+=) 10...Nb4 11.Qb3 Nd3 12.Qd3 Nf6 13.Bd4 Qe7 14.Be5 Rd8 15.Qe2=; A4) 9...ed5 10.Be2 (10.0–0 c5 11.a5 Bc7 12.Qa4 c4 13.Bc2 Nc5 14.Qb4 Bd6 15.Bf6+=; 10.Qc2 c5 11.0–0 c4 12.Bf5 Ne5 13.Be5 Be5 14.Nc3 d4 15.ed4+=; 10.Nc3 Ne5 11.Ne5 Be5 12.Rb1 c5 13.0–0 c4 14.Bc2 d4 15.ed4+=) 10...a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1 c5 14.Qc2 Nb6 15.Rc1+=; B) 9.Be2 B1) 9...dc4 10.Na3 (10.bc6 bc6 11.Qc2 e5 12.Bc4 Rb8 13.Ng5 Re7 14.0–0 h6 15.Nf7+=; 10.Bc4 Nb6 11.d3 e5 12.Nbd2 Nc4 13.Nc4 cb5 14.ab5 Bb4 15.Kf1+=; 10.Nc3 e5 11.Ng5 h6 12.Nge4 Nc5 13.Nc5 Bc5 14.Bc4 cb5 15.ab5+=) 10...cb5 11.ab5 Nb6 12.Nc4 Nc4 13.Bc4 e5 14.0–0 Be6 15.Be6=; B2) 9...e5 10.d4 (10.d3 dc4 11.bc6 bc6 12.dc4 Qc7 13.Nc3 Nc5 14.Qc2 e4 15.Nd4–/+; 10.cd5 cb5 11.ab5 Nb6 12.d3 Nfd5 13.0–0 Bd7 14.Qb3 a5 15.ba6+=; 10.0–0 dc4 11.Bc4 Nb6 12.Bb3 cb5 13.ab5 Bg4 14.h3 Bh5 15.g4+=) 10...e4 11.Nfd2 c5 12.a5 Bc7 13.0–0 Ba5 14.dc5 Nc5 15.Bf6=; B3) 9...cb5 10.ab5 (10.cb5 e5 11.0–0 a6 12.Ba3 Bb8 13.ba6 ba6 14.Nc3 e4 15.Nd4+=; 10.cd5 e5 11.ab5 Nb6 12.d3 Nfd5 13.0–0 Bd7 14.Qb3 a5 15.ba6+=) 10...dc4 11.Na3 Nb6 12.Nc4 Nc4 13.Bc4 e5 14.0–0 Be6 15.Be6=; B4) 9...a6 10.d4 (10.cd5 ed5 11.0–0 ab5 12.ab5 Ra1 13.Ba1 c5 14.Qc2 Qe7 15.Rc1+=; 10.0–0 e5 11.d3 ab5 12.ab5 Ra1 13.Ba1 Qc7 14.cd5 cd5 15.Qc1+=; 10.bc6 bc6 11.d4 Rb8 12.Ra2 e5 13.de5 Ne5 14.Ne5 Be5 15.Be5+=) 10...dc4 11.bc6 bc6 12.0–0 Rb8 13.Qc2 c5 14.Nbd2 cd4 15.Nc4=; C) 9.0–0 C1) 9...cb5 10.cd5 (10.cb5 e5 11.Be2 a6 12.Ba3 Bb8 13.ba6 ba6 14.Nc3 e4 15.Nd4+=) 10...e5 11.Bb5 e4 12.Nd4 a6 13.Bd7 Qd7 14.Qb3 Be5 15.f3=; C2) 9...a6 10.cd5 (10.Nc3 e5 11.cd5 cb5 12.Bb1 Qc7 13.ab5 e4 14.Ng5 Bh2 15.Kh1 Nc5+=; 10.Qc2 dc4 11.Bc4 cb5 12.ab5 Nb6 13.Be2 e5 14.d4 e4 15.Ne5=; 10.bc6 bc6 11.cd5 cd5 12.Ba3 Ne5 13.Ne5 Be5 14.Ra2 Rb8 15.f4+=) 10...cd5 11.Ba3 Ba3 12.Na3 e5 13.Be2 b6 14.d4 e4 15.Nd2=; C3) 9...dc4 10.Bc4 Nb6 11.Be2 cb5 12.ab5 e5 13.d3 a6 14.Nc3 Nbd5 15.Ne4=; C4) 9...e5 10.cd5 (10.Be2 dc4 11.Bc4 Nb6 12.Bb3 cb5 13.ab5 Bg4 14.h3 Bh5 15.g4+=; 10.bc6 bc6 11.cd5 cd5 12.Be2 Qb6 13.Bc3 Rb8 14.Na3 a6 15.Rb1–/+) 10...cb5 11.Bb5 e4 12.Nd4 a6 13.Bd7 Qd7 14.Qb3 Be5 15.f3=; D) 9.bc6 D1) 9...bc6 10.cd5 (10.0–0 e5 11.cd5 cd5 12.Be2 Qb6 13.Bc3 Rb8 14.Na3 a6 15.Rb1–/+; 10.Be2 Rb8 11.Ba3 c5 12.Nc3 a6 13.Rc1 Qa5 14.0–0 Nb6 15.cd5+=; 10.Ba3 Ba3 11.Na3 e5 12.cd5 e4 13.dc6 Nc5 14.Be4 Nfe4 15.0–0–/+) 10...cd5 11.Nc3 e5 12.Be2 Rb8 13.Rb1 Nb6 14.Nb5 Qe7 15.d4=; D2) 9...Nc5 10.Qc2 (10.Bf1 bc6 11.Be5 Nce4 12.Bd6 Qd6 13.d3 Qb4 14.Nbd2 Nc3 15.Qb3=; 10.Bc2 dc4 11.Ne5 Be5 12.Be5 bc6 13.Qf3 Ncd7 14.Bc3 e5 15.Qc6+=; 10.Be2 bc6 11.Be5 dc4 12.Bc4 Ba6 13.Ba6 Na6 14.0–0 c5 15.d3=) 10...bc6 11.Be2 e5 12.Ne5 Be5 13.d4 Bd4 14.Bd4 Ne6 15.Bb2=.

8.Be2 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cd5 Nd5 13.Bb5 Nc5 (13...Qa5!? 14.Bd7 Qa1 15.Bc8 Rc8+=) 14.Nc3 1–0. Hal1958 – Pirco, playchess.de, 2004.

8.Be2 e5 9.0–0 Re8 10.d4 dc4 11.Bc4?? (better is 11.de5 Ne5 12.Be5 Be5 13.Qd8 Bh2 14.Kh2 Rd8 15.Bc4+–) 11...ed4= 12.Qd4 Bc5 (12...Nb6 13.Bd3=) 13.Qc3 cb5 14.ab5 b6? (14...Bd6 15.Qb3 Qe7 16.Rd1=) 15.Ng5 (better is 15.Bd5! Rb8 16.Ra7+/–) 15...Ne5+= 16.Nf7?? (better is 16.Bb3 h6 17.Rd1=) 16...Nf7–+ 17.Nd2 Bb7 18.Nf3 (18.Qc2 Ne4 19.Rfd1 Ned6–+) 18...Bf3 19.gf3 Qe7 20.Kh1 (20.Qb3 Rf8–+) 20...Qb7 21.e4 Kh8 22.Rg1? (better is 22.Bd5 Qe7 23.Ba8 Ra8 24.Rfd1–/+) 22...Ne5–+ 23.Rg5 Nc4 24.Qf6 (24.Qc4 Qe7–+) 24...Nb2 (24...gf6? 25.Bf6 Qg7 26.Rg7+–) 25.Qb2 Rad8 26.Rag1 Rg8 27.R1g3 Bd4 28.Qa2 Bf6 29.Rh5 Qc7 (29...Rge8 30.Kg2–+) 30.Rgh3 (30.Qe6 Qd7 31.Rgh3 Qd1 (31...Qe6?? 32.Rh7) 32.Kg2 h6+=) 30...h6 31.Qe6 (31.Kg2 Rge8–+) 31...Qd7 (better is 31...Rd1 32.Kg2 Qc1–+) 32.Rh6!+– (32.Rh6 gh6 33.Rh6 Qh7 34.Qf6 (worse is 34.Rh7 Kh7 35.Qf5 Rg6 36.Qh5 Kg7+=) 34...Rg7 35.Qd8 Rg8 36.Qd6+–) 1–0. katchum (1780) – rhand (1915), net–chess.com, 2001.

8.Be2 Re8 9.d4 dc4 10.Bc4 cb5 11.ab5 a6 (11...Nb6 12.Bd3=) 12.ba6 (12.0–0 Nd5=) 12...ba6 13.0–0 (13.Ba3 Bc7=) 13...Nb6 (13...Bb7 14.Qe2=) 14.Bd3 Nbd5 (14...Bb7 15.Ba3=) 15.Nbd2 (better is 15.e4+–) 15...Nb4= 16.Bb1 a5 17.Nc4 Bc7 18.Re1 Ba6 19.Nce5 Nd7 (19...Qd5 20.Ng5=) 20.Nd3 (20.Be4 Rb8 21.Nd7 Qd7=) 20...Nd3 21.Bd3 Bd3 22.Qd3 e5 23.de5 (23.e4 ed4 24.Bd4 Ne5 25.Ne5 Be5=) 23...Ne5 24.Qe2 (24.Ne5 Be5 25.Qd8 Rad8=) 24...Qf6 (24...Nf3!? 25.Qf3 Bh2 26.Kh2 Qb8 27.Kg1 Qb2–/+) 25.Nd4= Qh4 (25...Nc6 26.Nc6 Qc6 27.Rec1=) 26.h3 Rab8 (26...Qe4 27.Red1=) 27.Rac1 (27.Bc3!?+=) 27...Bd6 28.Red1 Rb6?? (28...Qe4 29.Ra1=) 29.Bc3?? (29.Nf5 Qf6 30.Bd4 Rb7+/–) 29...Reb8? (29...Bb4!?=) 30.Ba5 (better is 30.f4!? Ba3 31.Rc2+– (31.fe5?! Bc1 32.Rc1 Qe4+/–; 31.Ba5?! Bc1 32.Bb6 Ba3+/–)) 30...Rb2+/– 31.Rc2 Rb1 32.Nf5 (better is 32.f4 Ng6 33.Bc3 Rd1 34.Qd1+/–) 32...Rd1?? (better is 32...Qf6 33.e4 Ng6+/–) 33.Qd1+– Bf8?? (33...Nf3 34.Kh1 Qf6+/–) 34.Nh4 1–0. Fredek (2065) – Janus 1957 (1820), Freundschaftspartie, 5m + 0s, 2006.

8.d4 Bb4

9.Bc3 A) 9...Be7 A1) 10.Be2 dc4 (10...Qc7 11.Nbd2 b6 12.0–0 Bb7 13.Qb3 c5=; 10...cb5 11.ab5 dc4 12.Bc4 Nb6 13.Bd3 Nfd5=; 10...a6 11.bc6 bc6 12.0–0 Rb8 13.Nbd2 c5=) 11.bc6 bc6 12.Bc4 c5 13.0–0 Bb7=; A2) 10.Nbd2 c5 (10...cb5 11.ab5 dc4 12.Bc4 Nd5 13.Qb3 N5b6=) 11.Bd3 dc4 12.Bc4 Nd5 13.Bd5 ed5=; A3) 10.Bd3 dc4 11.Bc4 Nb6 12.Bd3 Bd7 13.e4 cb5=; B) 9...Ba5 10.Bd3 (10.Ba5 Qa5 11.Qd2 Qc7 12.Nc3 dc4 13.Bc4 c5=; 10.bc6 bc6 11.Ba5 Qa5 12.Qd2 Qd8 13.cd5 Ne4=) 10...dc4 11.Bc4 Ne4 12.Ba5 Qa5 13.Nbd2 Nc3=; C) 9...Qe7 10.Bb4 (10.bc6 bc6 11.Bb4 Qb4 12.Qd2 c5 13.Nc3 Rb8=) 10...Qb4 11.Qd2 Qd6 12.Nc3 e5 13.cd5 cd5=; D) 9...Bc3 10.Nc3 c5 (10...Qa5 11.Qd2 cb5 12.Nb5 Qd8 13.cd5 Nd5+=) 11.a5 Ne4 12.Ne4 de4 13.Ne5 Nb8=.

9.Nfd2 Qa5 A) 10.Be2 c5 (10...Ne4 11.Ba3 dc4 12.Bc4 cb5 13.Bb4 Qb4=; 10...dc4 11.Bc4 Ne4 12.bc6 bc6 13.Ba3 c5=) 11.dc5 Ne4 12.c6 bc6 13.bc6 Nb8=; B) 10.Bd3 dc4 (10...c5 11.0–0 cd4 12.ed4 Re8 13.c5 Qc7+=) 11.Bc4 cb5 12.ab5 Qc7 13.0–0 Bd6=.

9.Nfd2 a6 10.Nc3 (10.Bc3 Bc3 11.Nc3 e5 12.de5 Ne5 13.cd5 cb5=; 10.Qb3 a5 (10...Ba5 11.Bd3 c5 12.0–0 cd4 13.ed4 dc4=; 10...c5 11.dc5 Bc5 12.cd5 ed5 13.Bd3 Bd6=; 10...Bd6 11.c5 Bb8 12.Bd3 e5 13.0–0 e4=) 11.Bc3 Bc3 12.Nc3 e5 13.Nf3 ed4=) 10...Qa5 (10...ab5 11.ab5 Ra1 12.Qa1 c5 13.Qa4 Qe7+=; 10...c5 11.dc5 Nc5 12.cd5 Nd5 13.Qc2 Qa5+=) 11.Qc1 (11.Qc2 Re8 12.Bd3 e5 13.0–0 ed4=) 11...e5 (11...c5 12.Bd3 cd4 13.ed4 Qc7+=) 12.f3 (better is 12.de5!? Ne4 13.Nde4 de4 14.e6+=) 12...ed4–/+ 13.ed4 Qc7 (13...Re8–/+) 14.g3 Re8 15.Kf2 ab5 16.ab5 Ra1 17.Ba1 Qb6 18.Na2 (18.c5!? Nc5 19.dc5 Qc5 20.Kg2+=) 18...Bd2–/+ 19.Qd2 dc4 20.bc6 (20.Bc4 Ne5 21.Be2 Neg4 22.Kg1 Ne3–/+) 20...bc6 (20...Qc6!? 21.Bg2 Qd6–+) 21.Bc4–/+ Ne5 22.Be2 Neg4! 23.Kg2 (23.fg4 Ne4) 23...Ne3 24.Kf2 Neg4 25.Kg2 Ba6 26.Ba6 Qa6 27.Nc3 Ne3 28.Kf2 c5 29.d5?? (29.dc5 Nfg4) 29...Nfg4!–+ (29...Nfg4 30.fg4 Qf6 31.Ke2 Nf1 32.Kd1 Qf3 33.Kc2 Nd2–+) 0–1. Schuehler,Ernst – Kuehn, corr JBDDR'3220, 1980.

9.Nfd2 c5 10.cd5 Nd5 11.Qg4 N5f6 12.Qh4 cd4 13.Qd4 Qe7 +=.

9.Nfd2 Qc7 A) 10.Ba3 Ba3 11.Na3 e5 12.cd5 ed4 13.dc6 de3+=; B) 10.Bc3 Be7 11.Bd3 e5 12.cd5 cd5 13.de5 Ne5=; C) 10.Qb3 c5 (10...Bd6 11.c5 Be7 12.Qc3 e5 13.de5 Ne4=) 11.cd5 Nd5 12.Bc4 cd4 13.Bd4 Nc5+=; D) 10.cd5 cd5 (10...Nd5 11.Qc2 Rd8 12.Bd3 N7f6 13.bc6 Qc6=; 10...ed5 11.Bd3 Bd6 12.bc6 bc6 13.Ba3 Rb8=) 11.Ba3 Ba3 12.Ra3 e5 13.de5 Ne5=.

9.Nfd2 Qe7 A) 10.bc6 bc6 11.Bd3 dc4 12.Bc4 c5 13.0–0 Bb7+=; B) 10.Bc3 e5 11.Bb4 Qb4 12.cd5 Nd5 13.Na3 Nc3+=; C) 10.Ba3 Ba3 (10...e5 11.Bb4 Qb4 12.cd5 Nd5 13.Na3 Nc3+=) 11.Na3 e5 12.bc6 bc6 13.Nc2 ed4+=; D) 10.Be2 c5 11.0–0 cd4 12.Bd4 e5 13.Bc3 Rd8=.

9.Nfd2 Re8 A) 10.Be2 c5 (10...cb5 11.ab5 dc4 12.0–0 Nb6 13.Nc4 Nc4=; 10...a6 11.Bc3 Bc3 12.Nc3 e5 13.de5 Ne5=; 10...dc4 11.0–0 Nb6 12.Nc4 Nc4 13.Bc4 cb5=; 10...Qc7 11.0–0 Bd6 12.c5 Be7 13.a5 cb5=) 11.dc5 Nc5 12.0–0 e5 13.Nf3 e4+=; B) 10.Bc3 Bc3 11.Nc3 c5 12.dc5 Nc5 13.Nb3 Nb3=.

6.f4 0–0

7.Nf3 a6 8.Be2= ab5 9.ab5 Ra1 10.Ba1 Nbd7 (10...cb5 11.0–0=) 11.0–0 Qa5 12.Nc3 (12.Bc3 Qb6=) 12...Re8 13.d4 (13.Qe1 e5 14.fe5 Ne5=) 13...Bb4 14.Qd3 c5 15.dc5 Bc5 16.Nd4 (16.Bb2 Qb4 17.Nd1 Qf4–/+) 16...Bb6 (16...Bb4 17.Nb3 Qb6 18.Qd4 Qd4 19.Nd4+=) 17.Qd2 Nc5 18.Bb2 Qb4 19.Rb1 Bd7 20.Ne4 (20.Ba1 Nfe4 21.Rb4 Nd2+=) 20...Qd2+= 21.Nd2 Na4 (21...e5 22.fe5 Re5 23.Nf1+=) 22.Ba1 Ba5 (22...Rc8 23.c4=) 23.N2b3 Bb4 24.c4 dc4 (24...Nc3 25.Bc3 Bc3 26.Nc5 dc4 27.Nd7 Nd7 28.Bc4=) 25.Bc4 Nd5 26.Bd5 (26.Nc2 Rc8 27.Bd5 Rc2+/–) 26...ed5+= 27.Kf2 Nb6 28.Rd1 Ra8 29.Rc1 Bd6 (29...Ra2 30.Kf3+=) 30.Bc3 (30.Kf3 h5=) 30...Nc4+= 31.Rc2 (31.Kf3 Re8 32.Re1 Re4+=) 31...g6 (31...Re8 32.Re2+=) 32.Be1 (32.Nd2 h6=) 32...Na3 The isolani on b5 becomes a target (32...Re8 33.Rc3+=) 33.Ra2 Rb8 34.Rd2 f5 (worse is 34...Nb5 35.Nb5 Bb5 36.Rd5+=; 34...Bb5? 35.Nb5 Nb5 36.Rd5 Bf4 37.ef4+–) 35.Nf3 (35.Rd1 h6+= (35...Bb5? 36.Nb5 Nb5 37.Rd5+–)) 35...Nb5–/+ 36.Rd5 Bc6 37.Rd1 Be4 38.Nfd4 (38.Nbd4 Nd4 39.Rd4 Bc5–/+) 38...Nd4–/+ 39.Rd4 Bf8 (39...Be7 40.Bb4 Bh4 41.g3+=) 40.Bb4+= ½–½. Luehrig,Walter – Pleschke,Helmut, Orang–Utan Invitational, 2001.

7.Nf3 cb5 8.Bb5 (8.ab5 a5=) 8...a6 9.Bd3 Nc6 10.Na3 (10.Ne5 Nb4+=) 10...Bd7 11.c4 Nb4 12.Be2 Qa5 Attacking the isolated pawn on a4 (12...Ne4 13.0–0+=) 13.0–0 (13.cd5 Ba4 14.Nc4 Bd1 15.Na5 Be2 16.Ke2 Nfd5 17.Nb7 Be7+=) 13...Ba4 14.Qb1 Qd8 (14...Ne4 15.cd5 Qd5 16.Bc4 Nd2 17.Bd5 Nb1 18.Bb7 Na3 19.Ba8= (worse is 19.Ra3 Ra7 20.Be4 Bc2 21.Bc2 Nc2–/+; 19.Ba3?! Ra7 20.Bb4 Bb4 21.Ra4 Rb7=)) 15.Ng5 g6 16.Rf3 Kg7 (16...Bc5 17.Bc3 Nc6 18.d4 (18.Qb7? d4–+) 18...Ba3 19.Ra3+=) 17.cd5 (17.Bd4 b6=) 17...ed5+= 18.Bc3 a5 19.Bb5 (19.Nb5 Bb5 20.Bb5 h6+=) 19...Bb5 20.Nb5 Be7 21.f5 (21.Nd4 Qd7+=) 21...Ra6 (21...h6 22.Nh3 Qd7 23.Nd4+=) 22.fg6 hg6 23.Qf1 Rh8 24.Rf4 (24.Ra4 Kg8=) 24...Rh5 25.Nf3 Kg8 26.Bb2 (26.g4 Rh7+=) 26...Rh7 (26...Re6 27.g4 Rh8 28.g5+=) 27.Ne5 Re6 28.Rc1 Na6 29.Bd4 Bd6?? (29...Rh5 30.Na7 Nc7+= (worse is 30...Rhe5 31.Be5 Re5 32.Rc8+–; worse is 30...Ree5 31.Be5 Re5 32.Rc8+–)) 30.Nd6+– Rd6 31.Ng6! fg6 (31...Ne8 32.Ne5 Rf6 33.Rf6 Nf6 34.Qf4+–) 32.Bf6+– (32.Rf6?! Rf6 33.Bf6 Qf8+/–) 32...Qd7? (better is 32...Qe8+–) 33.Be5 Re6 34.Rf8 1–0. pcmvr (1885) – trippovic (1675), internet, 2006.

7.Nf3 c5 8.Be2 =.

7.Nf3 Bd7 8.Nc3 Be8 +=.

7.Nf3 Bd7 8.Bd3 Re8 (8...Be8 9.Nc3+=) 9.0–0 (9.Be5 Ne4+=) 9...a6 10.Qe1 (better is 10.Nc3!?+/–) 10...ab5= 11.ab5 Ra1 12.Ba1 cb5 13.Nc3 (13.Be5 Qe7+=) 13...Qa5 (13...b4!? 14.Nb5 Bb5 15.Bb5 Nc6+=) 14.Qg3 (better is 14.Nd4=) 14...Kh8? (better is 14...g6=) 15.Ng5+– White intends f5 15...g6?? (15...Be7 16.Qh3 h6 17.Nf7 Kg8+–) 16.Nf7 Kg7 17.Nd6 Rf8 18.f5 ef5 (18...Nc6 19.fg6 Nh5 20.Na4 d4 21.gh7 Ng3 22.Rf8 Kf8 23.h8Q Ke7 24.Nb7+–) 19.Nd5 Qd2 20.Nf6 1–0. pcmvr (2735) – dmendiola (2270), net–chess.com, 2007.

7.Nf3 Bd7 8.Be2 =.

7.Nf3 Nbd7 8.Be2 Qb6 9.Ne5 Qc7 10.bc6 (10.Nd7 Nd7 11.0–0 e5 12.bc6 bc6 13.fe5 Ne5=) 10...Ne5+= 11.cb7 Bb7 12.fe5 Be5 13.Be5 Qe5 14.Ra3 Rfd8 (14...d4 15.0–0+=) 15.d4= Qc7 16.0–0 Ne4 17.Bd3 Qa5 (17...Rab8 18.Qh5=) 18.Qh5 Qc7 19.Rc3 (19.Rb3 Rab8+=) 19...Qe7 (19...Nc3 20.Bh7 Kf8 21.Nc3=) 20.Be4 de4 21.Nd2 Rd5 (21...e5 22.Nb3=) 22.Qd1 (22.Qe2 Rd7=) 22...Ra5 23.Qa1 Qd7 Attacks the isolani on a4 24.Ra3 Qc7 (24...Rb8 25.Nb3 Rf5 26.Nc5+=) 25.c4 Rh5 26.g3 Rg5 (26...Rd8 27.Rb3=) 27.Kg2 (27.Rb1 Rc8=) 27...h5 (27...Rd8 28.Rb3=) 28.Rf4 (28.Rb3!?+=) 28...e5= Black terminates the opponent with strong threats 29.de5 Black gets strong play along the open d–file 29...Rd8 30.Qc1 (30.Qb2 Re5 31.Rb3 Bc6+=) 30...Re5+= 31.Kg1 (31.Qb2 Re6+=) 31...Red5 32.Nf1 (32.Rf7 Kf7 33.Qf1 Kg8 34.cd5 Qc2–/+) 32...Rd1–/+ 33.Qc2 Re1 (33...Bc6 34.Rc3–/+) 34.Kf2 (better is 34.Rc3!?+=) 34...Rdd1–+ 35.Nd2?? (better is 35.Kg2 Rc1 36.Qb2 Rc4 37.Qb5 Rc2 38.Kg1–/+) 35...Qd7 36.Ne4 Qh3 0–1. Grehl,Siegfried – Andersson,Lars H, corr SOK–90–53, 1990.

7.Nf3 Nbd7 8.Be2 c5 9.0–0 b6 (9...a6 10.Nc3=) 10.Qe1 (10.Nc3 a6=) 10...a6 (10...Qc7 11.Qg3=) 11.Na3 (11.Nc3 e5 12.fe5 Ne5 13.ba6 Nf3 14.Bf3 Be5=) 11...Bb7 (11...c4 12.ba6 Ra6 13.Nb5=) 12.ba6 Ba6 13.Nb5 Bb5 (13...Qe7 14.Ne5 Rfc8 15.d3+=) 14.Bb5+= c4 (14...Qc7 15.Qg3 d4 16.Rae1=) 15.d3 Nc5 (15...cd3 16.cd3 Bc5 17.Ne5+=) 16.dc4+/– dc4 (16...Be7 17.cd5 ed5 18.Qd1+/–) 17.Nd2 Nce4 (17...c3 18.Bc3 Qe7 19.Bd4+/–) 18.Ne4 (18.Bc4 Bb4 19.Ne4 Be1 20.Nf6 gf6 21.Rfe1 Qc7–/+) 18...Be7?? (better is 18...Ne4 19.Bc6 f5 20.Ba8 Qa8+/–) 19.Nf6 (19.Bf6 Bf6 20.Rd1 Qc8+–) 19...Bf6 20.Bf6 (20.Rd1 Bb2 21.Rd8 Rfd8+–) 20...gf6 (20...Qf6 21.Bc4 Qe7 22.Bd3+–) 21.Rd1 Qe7 22.Rd7 (22.f5 e5+–) 22...Qc5 23.Qg3 Kh8 24.f5 Rg8 (24...ef5 25.Rf3 Qa3 26.Rf5+–) 25.Qh3 Rg7 (25...ef5 26.Rf7 Rg7 27.Rg7 Kg7 28.Rf5+–) 26.fe6 Rag8 (26...fe6 27.Rg7 Kg7 28.Qe6+–) 27.ef7 Rf8 28.Qe6 h5 (28...c3+–) 29.Rf6 Qg5 Threatening mate: Qxg2 30.Rh6 1–0. MarcosRamos (1735) – yaunootz (1650), internet, 2007.

7.Nf3 Nbd7 8.Be2 c5 9.0–0 b6 10.Qe1 Bb7N 11.Ne5 (11.Nc3 Re8=) 11...Qc7 12.Nd7 Nd7 13.Qg3 f6 (13...e5 14.a5 d4 15.Qh4=) 14.Qh3 (14.Bg4 Rfe8=) 14...e5 (14...Rfe8 15.Bg4 f5 16.Bf3=) 15.Bg4+= Rad8 16.Be6 Kh8 17.Nc3 (17.Bd7 Rd7 18.fe5 fe5 19.Rf8 Bf8=) 17...ef4 18.Nd5 Bd5 19.Bd5 fe3 20.Be4 h6 21.Qf5 (worse is 21.Qe3 Bh2 22.Kh1 Be5 23.Be5 Ne5+=; 21.de3?! Rfe8 22.Bg6 Re7=) 21...Bh2 22.Kh1 Kg8 23.Qh7 Kf7 24.Bd5 Ke7 (24...Ke8 25.Qg6 Ke7 26.Qg7 Kd6+–) 25.Bc6?? (25.Qg7 Kd6 26.Bc4+–) 25...e2?? (25...Be5 26.Be5 Ne5 27.Qg7 Rf7 28.Qh6 Ng4–+ (28...Nc6?! 29.bc6 ed2 30.Ra3 Qc6 31.Re3 Kd7 32.Rd3 Kc8 33.Rd8 Kd8 34.Qd2 Rd7 35.Qf4–/+; 28...ed2?! 29.Rad1–/+)) 26.Rf3 (26.Rae1!? Be5 27.Re2+/–) 26...Ke6 (better is 26...Ne5 27.Qe4 Kf7 28.Bd5 Ke7=) 27.Re1 (27.Re1 Ne5 28.Re2+–; 27.Qg7?! Be5 28.Be5 Qe5+–) 1–0. Plock,Joerg – Wall,Bill, corr Carel CF–01, 2005.

7.Nf3 Nbd7 8.Be2 Ne8 9.0–0 f6 (9...Nef6 10.Be5 Bb4 11.Ra2=) 10.bc6 (10.Nc3 e5=) 10...bc6 Opening the b–file gets White a lot of play 11.Nd4 Qb6 (11...Nc5 12.Nc3 (worse is 12.Nc6 Qb6–+) 12...Qc7 13.Ba3=) 12.Ba3 Nc5 13.c4 (13.Nc3 Qc7=) 13...Bd7 (13...e5 14.a5 Qc7 15.Bc5 Bc5 16.Nb3=) 14.Nc3+= Qc7 (14...Qa5 15.Bc5 Qc5 16.cd5 ed5 17.Qc2+=) 15.cd5 ed5 16.Rb1 (16.Qc2 a5+=) 16...Rb8 (16...Ne6 17.Bd6 Nd6 18.Nb3+=) 17.Qc2 Ne4 (17...Rb1 18.Rb1 Ne6 19.Bd6 Nd6 20.Bd3 Nd4 21.Bh7 Kh8 22.ed4+=) 18.Ne4 (18.Bd6 N4d6 19.Rfc1 Rb7+/–) 18...Ba3 19.Nc5 (19.Rb8 Qb8 20.Rb1 Qc7+=) 19...Bc5 20.Qc5 Nd6 21.Nb5 (better is 21.d3 Nf5 22.Nf5 Bf5 23.e4+=) 21...Ne4?? (21...Nb5 22.Rb5 Rfc8=) 22.Qc2 (better is 22.Qf8! Rf8 23.Nc7 Nd2 24.Rb7 Nf1 25.Kf1+–) 22...Qa5+= 23.Nc3 Nc3 24.dc3 Rfe8 (24...Qc5 25.Qd2+=) 25.Bd3= f5 26.Bf5 (better is 26.Rb8!? Rb8 27.c4=) 26...Bf5–/+ 27.Qf5 Qc3 (27...Qa4?! 28.Rb8 Rb8 29.Qe6 Kh8 30.Re1=) 28.Rb8 (28.Rfe1 Rb1 29.Qb1 Qa5–/+) 28...Qe3 (28...Rb8?! 29.Qe6 Kh8 30.f5=) 29.Kh1 Rb8 30.Qc2 (30.a5 Qe4 31.Qd7 Qf4–/+) 30...c5–+ 31.g3 (31.Qd1 d4–+) 31...Qe4 (31...c4 32.Qf5 Rd8 33.Qg5 Qe4 34.Kg1–+) 32.Qe4 de4 33.Re1 (33.Rc1 Rb4–+) 33...Rb4–+ 34.a5 Kf7 35.Kg2 (35.Rc1 c4–+) 35...Ke6 36.Kf2 Kd5 37.Ke3 (37.Rd1 Rd4 38.Rb1 Rd2 39.Ke3 Rd3 40.Ke2 Kc6–/+) 37...Rb3 38.Kd2 (38.Ke2 e3 39.Kf3 Kd4–+) 38...Kd4 39.Rd1 (39.Kc2 c4 40.a6–+) 39...Rd3 40.Ke1 Rd1 41.Kd1 Kd3 42.f5 h5 43.h3 e3 44.g4 hg4 45.hg4 (45.Kc1 e2 46.Kb1 e1Q 47.Kb2 Qb4 48.Kc1 Qb3 49.hg4 Qc2) 45...c4 (45...e2 46.Ke1 c4 47.Kf2 c3 48.f6 c2 49.Kg3 e1Q 50.Kh3 Qe3 51.Kh4 c1Q 52.g5 Qg5 53.Kh3 Qh1) 46.g5 (46.Kc1 e2 47.Kb1 e1Q 48.Kb2 Qb4 49.Kc1 Qb3 50.f6 Qc2) 46...c3 (46...e2 47.Ke1 Ke3 48.f6 c3 49.fg7 c2 50.g8Q c1Q) 47.f6 (47.Ke1 c2 48.Kf1 c1Q 49.Kg2 e2 50.Kg3 Qg5 51.Kh2 e1Q 52.f6 Qgg3) 47...gf6 (47...c2 48.Kc1 Kc3 49.fg7 e2 50.g8Q e1Q) 48.gf6 (48.Kc1 e2 49.Kb1 e1Q 50.Ka2 Kc2 51.Ka3 Qb1 52.gf6 Qb3) 48...e2 49.Ke1 c2 0–1. Kucharkowski,Jens – Barz, Freital, 1982.

7.Nf3 Ne4 8.Be2 (8.Nc3 Nc3 9.Bc3 Nd7=) 8...Nd7 9.0–0 cb5 (9...Ndf6 10.Ne5=) 10.ab5+= b6. pcmvr (2450) – navaltoy (2150), net–chess.com, 2006.

5.e3 Bd7

6.Nc3 Bd6 7.Nf3 (7.f4 0–0+=) 7...0–0= 8.Ba3 (8.Be2 e5=) 8...Ba3+= 9.Ra3 Qc7 (9...a6 10.Ra2+=) 10.d4 (10.Be2 c5 11.0–0 d4+=) 10...Re8 (10...a6 11.Qc1+=) 11.Be2= Bc8 (11...a6 12.ba6 Na6 13.0–0=) 12.a5 (12.0–0 c5=) 12...Nbd7 (12...cb5 13.Nb5 Qe7 14.Qa1=) 13.Qa1 (13.0–0 Qd6 14.Ra4 c5=) 13...e5 14.de5 (14.0–0 ed4 15.ed4 a6 16.bc6 bc6=) 14...Ne5+= 15.0–0 Bg4 (15...Nf3 16.Bf3 Bg4+=) 16.Nd4 (16.Ne5!? Re5 17.bc6 bc6 18.Rd1+=) 16...Be2 17.Nce2 Rad8 (17...c5 18.Nf3 Nf3 19.gf3–/+) 18.bc6 (18.a6 Nc4 19.Ra4 cb5 20.Nb5 Qd7+=) 18...bc6–/+ (18...Nc6?! 19.a6 Nd4 20.Nd4=) 19.Ng3 (19.Nf4 c5 20.Nb5 Qd7–/+) 19...a6 (19...c5 20.Nb5 Qd7 21.Rb3–/+) 20.Rd1 (20.Rb3 c5 21.Nde2 Nc4+=) 20...g6 (20...c5 21.Nde2+=) 21.Nf3 (21.Rb3 c5 22.Nde2 Rd6+=) 21...Nf3 22.gf3 Qe7 (22...Nd7 23.f4+=) 23.Rb3= Nd7 24.Rb7 Rb8 (24...h5 25.Qd4=) 25.Rdb1= Rb7 (25...h5 26.Ne2+=) 26.Rb7 Rb8 (26...Qe6 27.Qd4=) 27.Qb2 (27.Ra7 h5=) 27...Qd6 (27...Qf8 28.c4+=) 28.Rd7= Rb2?? (better is 28...Qg3! 29.fg3 Rb2=) 29.Rd6+– Rc2 30.Rd8 Kg7 31.Ra8 Ra2 (31...c5 32.Ra6 Ra2 33.Kf1+–) 32.Ra6 1–0. Torrijos Alhambra,Julian – Vidal Peris,Salvador, La Pobla de Vallbona op–B, 2004.

6.Nc3 e5 7.Nf3 e4 8.Ne5 +=.

6.c4 Qa5 7.cd5 cd5 8.Nf3 Bb4 9.Be2 0–0 10.0–0 Ne4 11.d3 Nc3 (11...Nc5!?+=) 12.Nc3+/– Bc3 13.Bc3 Qc3 14.Qc1 Rc8 15.Qc3 Rc3 16.Rac1 Ra3 17.Rc7 Ra4 (17...f6 18.Rb7 Rc3 19.Nd4+/–) 18.Ne5 Ra2 19.Rfc1 Nc6? (better is 19...Kf8 20.Rb7 Ke8+/–) 20.Nd7+– (20.Nc6?! bc6 21.Kf1 cb5 22.Rd7 b4+/–) 20...Re2 21.Kf1 Rb2 (21...Ra2 22.bc6 bc6 23.R1c6+–) 22.bc6 bc6 23.R1c6 Rb1 (23...h5 24.Ra6+–) 24.Ke2 Rb2 (24...h5 25.Ra6+–) 25.Kf3 h6 (25...h5 26.Ra6+–) 26.Rc8 Rc8 27.Rc8 Kh7 28.Nf8 Kg8 (28...Kh8 29.Rd8+–) 29.Ne6 Kh7 30.Nf8 Kg8 31.Nd7 Kh7 32.d4 f6 (32...a5 33.Nf8 Kg8 34.Ng6 Kh7 35.Ne7+–) 33.Rc7 a5 (33...Kg8 34.Ra7 h5 35.Nc5+–) 34.Nf6 Kg6 35.Nd5 a4 36.Ra7 Ra2 37.Nf4 Kf5 (37...Kh7 38.d5 Rd2+–) 38.Rf7 Kg5 39.h4! Kh4 40.Rg7 a3 (40...Rf2 41.Kf2 a3 42.g3) 41.g3 1–0. Trkn – guest2328, ICC, 2004.

6.c4 Bb4 7.Qb3 Bc5 8.d4 Be7 9.Nc3 0–0 10.Nf3 Ne4 11.Be2 Nc3 12.Bc3 Bf6 13.0–0 Qc7 14.Rac1 Re8 15.cd5 cd5 16.Bb4 e5?? 17.Rc7+– (17.Rc7 e4 18.Qd5 ef3 19.Bf3+–) 1–0. elsh1403 – whiskye, kurnik, 2011.

6.c4 cb5 7.ab5 a6 8.Nc3 Be7 9.Nf3 0–0 10.Ne5 Qc7 11.Nd7 Nbd7 12.Be2?? ab5 13.Ra8 Ra8 14.Nb5 Qc8 15.cd5 Nd5 16.0–0 Bf6 17.d4 Nf8 18.Qb3 Qd7 19.h3 h6 20.e4 Nf4 21.Bf3 Ra5 22.Na3 Bd4 23.Bd4 Qd4 24.Nc4 Rc5 25.Ne3 b5 26.Rd1 Qa4 27.Qb1 Rg5 28.Ng4 h5–+ 29.Qc1? hg4 30.Qf4 gf3 (30...gf3 31.Qf3 Re5–+) 0–1. nizinna (1670) – ikarus1000 (1760), kurnik, 2011.

6.c4 cb5 7.ab5= dc4 8.Bc4 Ne4 9.d3 Nd6 10.Nc3 =.

6.c4 cb5 7.ab5= dc4 8.Bc4 Be7 9.Nf3 0–0 10.0–0 h6 11.Nc3 Qc8 12.Qb3+/– Be8 13.Rfc1 Nbd7 14.Ne2 Nc5 15.Qc2 b6 16.d4 Nb7 17.Qb1 Qd8 18.Qd3 Nd6 19.Ne5 Nd7?? 20.Nc6+– (20…Nc4 21.Qc4+– (21.Rc4?! Ne5 22.Ne7 Kh8+/–)) 1–0. Wall,Bill – Guest697, Internet, 2002.

6.c4 cb5 7.ab5 dc4 8.Bc4 Be7 9.Nf3 Qb6 10.Nc3 a6 11.Qb3 0–0 12.0–0 Ra7 13.Ne5 Be8 14.d4 ab5 15.Ra7 Qa7 16.Nb5 Qb6 17.Ra1 Nc6 18.f3 Ne5 19.de5 Nd7 20.Bd4 Nc5 21.Qb2 Qc6 22.Na7 Qc7 23.Rb1 Qa5 24.Nb5 Bc6 25.Ra1 Qd8 26.Rd1 Qc8 27.Nd6 Na4 28.Nc8 Nb2 29.Ne7 Kh8 30.Bb2 1–0. Kucharkowski – Jaeckel, Freital 1982.

6.c4 Bd6=+ 7.d4 dc4 8.Bc4 Qe7 (8...cb5 9.ab5 Bh2 10.g3=+) 9.Nd2 e5 (9...0–0 10.Ngf3=) 10.Ngf3 (10.de5 Be5 11.Be5 Qe5+=) 10...ed4 (10...e4 11.Ne5 0–0 12.Qc2=) 11.Bd4 h6 (11...0–0!?=) 12.0–0+/– c5 (12...cb5 13.ab5 a6 14.e4+/–) 13.Bb2 (13.Bf6 gf6 14.Bd5 Bc8+/–) 13...Be6 14.Bd3 (14.Bf6 gf6 (14...Qf6?? 15.Ne4 Bh2 16.Kh2+–) 15.Ne4 Bc7+/–) 14...Nbd7+= 15.e4 (15.Rc1 Rd8+=) 15...Bc7 (15...Bf4 16.a5=) 16.e5 (16.Qc2 Rd8+=) 16...Ng4 (16...Nd5 17.Nc4+=) 17.Re1 f6 (17...Rd8!? 18.Qc2 Ba5+/–) 18.Bg6 Kf8 (better is 18...Kd8+/–) 19.a5 (better is 19.ef6 gf6 20.Bf5+–) 19...Nge5 (19...Nde5 20.Be4=) 20.Ne5 (20.Be4 Re8+=) 20...Ne5 (20...Be5 21.Qc2=) 21.Be5 (21.Be4 Re8=) 21...Be5 22.Ra3 (22.Rc1 Rd8 23.Qe2 Bf4 24.Qe6 Qe6 25.Re6 h5+–) 22...Rd8 (22...c4 23.Qa4 Bd5 24.Nf3 Bf3 25.Rf3=) 23.Qe2= Qd6 (23...Bd5!?=) 24.Rd3 Qc7 (24...Qb8 25.Rd8 Qd8+/–) 25.Rd8+/– Qd8 26.Nf3 Bg4? (better is 26...Qc7+/–) 27.Qc4+– Qd7 28.Qc5 Qe7 29.Qa7 Qc7 30.Qa8 Qc8 31.Qc8 Bc8 32.Ne5 fe5 33.Re5 (33…Bd7 34.a6 Rh7 35.ab7 Be6 36.Re6 Rh8 37.b8Q#) 1–0. Kus,Joanna – Gondko,Katarzyna, Poland–ch U12 Girls, 2001.

6.c4 Ne4 7.Nc3 a6 8.cd5 Nc3 9.Bc3 ab5 (9...cd5!? 10.Nf3 f6=) 10.de6 fe6 (10...Be6!? 11.ab5 Ra1 12.Qa1 f6+/–) 11.ab5+– Ra1 12.Qa1 Bc8 (12...Rg8 13.Qa8 cb5 14.Qb7+–) 13.Be2 (13.Bg7 Rg8 14.Bf8 Rf8+–) 13...Nd7? (better is 13...Qg5+–) 14.Bh5 Ke7 15.bc6 Nc5 16.Nf3 (better is 16.Bg7 Bg7 17.Qg7 Kd6 18.Qd4 Kc6 19.Bf3 Kb5 20.Qb2 Ka6 21.Qa3 Kb5 22.Ne2+–) 16...Ne4 (16...Rg8+–) 17.Bb4 Nd6 18.Qe5 bc6 (18...g6 19.Bg4 bc6 20.Qh8 Ke8 21.Bd6 Qd6 22.Qh7 Qc5 23.Qg6 Ke7+–) 19.Qg5 1–0. pierre – wunceaknight, internet, 2015.

6.d4 Bb4 7.c3= Ba5 8.Nf3 0–0 (8...a6 9.ba6 Na6 10.Bd3=) 9.Be2 (9.Ba3 Re8=) 9...cb5 (9...Qb6 10.Qd3+=) 10.Bb5 (10.ab5 a6=) 10...Qb6+= 11.Qe2 a6 (11...Rc8 12.Bd3=) 12.Bd3= Ne4 (12...Rc8 13.0–0=) 13.Be4 (13.0–0 Rc8=) 13...de4 14.Ne5 Bc6 15.0–0 Nd7 16.Nd7 Bd7 (16...Bd7 17.c4 Qc6=). makaveli1982 – katrica, internet, 2007.

6.d4 cb5 7.ab5 Qb6 8.Qd3 +=.

6.Bd4 cb5 7.a5 (better is 7.ab5!? a6 8.Nf3=) 7...Nc6 (7...b4 8.Nf3–/+) 8.a6 (8.Bb5!? Nd4 9.Bd7 Qd7 10.ed4–/+) 8...ba6–+ 9.Ra6 (9.Bb2 Bc8–+) 9...Nd4 10.ed4 Be7 (10...Qc8 11.Ra2–+) 11.Nc3 Qb8 (11...b4 12.Nb1–+) 12.Nf3 (12.Bd3 0–0–+) 12...Qb7 (better is 12...b4 13.Na2 Bc8–+) 13.Ra3?? (better is 13.Qa1–+) 13...Ba3 14.Qb1 (14.Ne5 a6–+) 14...0–0 (14...a6 15.Be2–+) 15.Ne5 (15.Bb5 Rfb8 16.Qa1 Ne4 17.Qa3 Nc3 18.dc3 Bb5–+) 15...a6 16.Na4 (16.Bd3 Bd6–+) 16...Rab8 (16...Qa7 17.Qa1 Be7 18.Nc5 Bc5 19.dc5 Qc5 20.Bd3–+) 17.Nc5 (17.Nb2 Qb6 18.Nd7 Nd7–+) 17...Bc5 18.dc5 Ne4 (18...d4!? 19.f3–+) 19.Qb4 (19.d4 f6 20.Nd7 Qd7–+) 19...Rfc8 20.Bd3 (20.d4 Qc7 21.Nd7 a5–+) 20...Nc5 21.0–0 (21.Be2 Qc7 22.d4 f6 23.Nd7 Nd7–+) 21...Nd3 22.Qe7 (22.cd3 Qc7 23.Qb2–+) 22...Ne5 23.Qg5 f6 24.Qe3 Rc2 25.f4 Nc4 26.Qe1 Rd2 (26...Qb6 27.Kh1 Rd2 28.Qh4–+) 27.f5 d4 28.Rf3 Bc6 (better is 28...ef5!? 29.h3–+) 29.Qf1 Bf3 0–1. Jolilein – Andylein1989, mySchach.de, 2005.

6.Bd4 Bd6 =.

6.Be2 Be7 7.f4 0–0 8.Nf3 Bc8 9.0–0 b6 10.Ne5 c5 11.g4 (11.c4 a6=) 11...Bb7 12.g5 Nfd7 13.Ng4 f6 14.h4 (14.gf6 Nf6 15.Ne5 Nbd7+=) 14...Bd6 (14...a6 15.Na3+=) 15.Kh1 (15.gf6 Nf6 16.Nf6 gf6=) 15...Qe7 (15...f5!? 16.Ne5 a6–/+) 16.gf6= Nf6 17.Bf6 (17.Nf6 Rf6 18.Bf6 Qf6=) 17...Rf6 (17...gf6 18.Rg1+=) 18.Nf6= Qf6 19.Na3 Qh4 20.Kg2 d4 (better is 20...e5!? 21.Rh1 Qf6+=) 21.Bf3+= Qg4 22.Kf2 Qh4 23.Ke2 Qh2 24.Rf2 (24.Kd3 Bd5 25.e4 (25.ed4?! Qf4 26.c3 Qf5 27.Ke2 cd4 28.cd4 Bf3 29.Rf3 Qe4 30.Re3 Qg4 31.Rf3 Qd4=) 25...c4 26.Nc4 Bc4 27.Kc4+–) 24...d3?? (24...Bf3 25.Kf3 Qh5 26.Kg3+/–) 25.cd3 (better is 25.Kd3 Qf2 26.Bb7+–) 25...Bf3= 26.Kf3 Qh3 27.Ke2 Qg4 (better is 27...Qh5 28.Ke1 Qh1 29.Rf1 Qh4 30.Ke2 Qh2 31.Kf3 Qh3 32.Kf2 Qh2 33.Ke1 Qh4 34.Ke2 Qh2 35.Ke1 Qh4=) 28.Kf1+/– Qh3 29.Kg1 Bf4?? (better is 29...Nd7+/–) 30.ef4 (30.Rf4 Qg3 31.Kf1 Nd7+–) 30...Qg3 31.Rg2 (31.Kf1 a6+–) 31...Qd3 (31...Qf4 32.Qg4 Qg4 33.Rg4+–) 32.Qg4 Qd4 33.Kh2 Qa1 (33...Nd7 34.Rag1 g6 35.Qe6 Kh8+–) 34.Qe6 Kf8 35.Qc8 Kf7 36.Qb7 Ke6 (36...Nd7 37.Qd7 Kf8 38.Qd6 Kf7 39.Qd5 Kf6 40.Qa8+–) 37.Qa8 (37.Re2 Kf6 38.Qe7 Kg6 39.Rg2 Kf5 40.Rg5 Kf4 41.Qe3) 37...Qd4 (37...Qe1 38.Nc2 Qh4 39.Kg1 Qd8 40.Rg7 Qf6 41.Qe4 Kd6 42.Rh7 Qe6 43.Qd3 Qd5 44.Rh6 Kc7 45.Qd5 Nd7 46.Rh8 Nf8 47.Rf8 a6 48.Qc6) 38.Qb8 (38.Qb8 Ke7 39.Nc2+–) 1–0. Sannidhanam,A (1705) – Raicar,G (1815), Oceania Zonal, Gold Coast AUS, 2009.

6.Be5 Be7 =.

6.Nf3 a6 7.c4 ab5 8.ab5 Ra1 9.Ba1 cb5 10.cb5 Bd6 11.Nc3 0–0 12.Be2 e5 13.0–0 Bg4 14.h3 Bh5 15.Na4 Nbd7 16.Qc2 Bg6 17.d3=+ Qe7 18.Nh4 Nc5 19.Ng6+/– hg6 20.Nc3 Rc8 21.d4 Nce4 22.Qd3 Nc3 23.Bc3 e4 24.Qd2 Bb8 25.Bb4 Qc7 26.Rb1?? Qh2 0–1. TIROLOCO – SOULESSNURSE, Caissa.com, 2004.

6.Nf3 a6 7.c4 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 Qa5 11.Bf6 gf6 12.bc6 Bc6 13.0–0 Bd6 14.Nc3 Rg8 15.g3 Qf5 16.Nd4 Qg6 17.Nc6 Nc6 18.Qe2 Ne5 19.Bb5 Ke7 20.f4 Nd7 21.Bd7+– Kd7 22.Qb5 Ke7 23.Qb7 Kf8 24.Ra1 Kg7 25.Ra7 e5 26.f5! Qh5 27.Ne4 Qd1? 28.Kf2+– Qh5?? 29.Nd6 Qh2 30.Kf3 Qh1 31.Ke2 Qh2 32.Kd3 e4 33.Kc3 Kh6 34.Qf7 Qg3 35.Qh7 Kg5 36.Rg7 Rg7+– 37.Qg7 Kh4 38.Qg3 Kg3 39.Ne4 Kf3 40.Nf6 Ke2 41.e4 Kf3 42.e5 Kf4 43.e6 Kf5 44.e7 Kf6 45.e8Q Kf5 46.Qe7 Kf4 47.Qe6 Kf3 48.Kd3 Kf4 49.Qe4 Kg5 50.Qf3 Kg6 51.Ke4 Kg7 (51...Kg5 52.Qf7 Kg4 53.Qg8 Kh4 54.Kf4 Kh5 55.Qg5). j1a9n55 – sylwek34, kurnik, 2011.

6.Nf3 cb5 7.ab5 a6 8.Nc3 Bb4 9.Ne5 Bc3 10.Bc3 0–0 11.Nd7 Qd7 12.ba6 ba6 13.Be2 Nc6 14.0–0 Ne4= 15.Bb2 Nb4 16.Ba3 a5? 17.c3+– Nc6 18.Bf8 Kf8 19.Qa4 Nc5 20.Qb5 Nb7 21.Rfb1 Ra7 22.Qa4 Qc7 23.Bb5 Nc5 24.Qa3 Ne7 25.d4 Ne4 26.Bd3 Nd6 27.Rb2 Nef5? 28.Rab1 Ra8 29.Bf5 ef5 30.Rb6 Rd8 31.Qa5 Kg8 32.Qd5 Nc4 33.Qd8! Qd8 34.Rb8 Qb8 35.Rb8 1–0. baovn21 – mariuszalex, kurnik, 2011.

6.Nf3 Qb6 7.Na3 a6 8.Bf6 gf6 9.ba6 Na6 10.Be2 c5 11.0–0 c4 12.d3 c3 13.Rb1 Qc7 14.Nb5 Bb5 15.ab5 Nc5 16.d4 Ne4 17.Bd3 f5 18.Ne5 Nd2?? 19.Nf3?? Nf1 20.Bf1 Bd6 21.Qd3 Rg8 22.h3 Ke7 23.Rb3 Rg7 24.Rc3=+ Qd7 25.Rb3 Rag8 26.c4 dc4 27.Qc4 f4 28.e4 e5 29.de5+– Be5 30.Kh2 Bd6 31.e5+/– Bb8 32.Rd3 Qe6 33.Qc5 Ke8 34.Qd4 Ke7 35.Rc3 Rd8 36.Qb4 Ke8 37.b6 Be5?? 38.Ne5 Qe5 39.Bb5 Rd7 40.Rc8 1–0. mila77 (1760) – zetor1, kurnik, 2011.

6.Nf3 Bd6 7.c4 0–0 8.Nc3 Re8 9.Be2 e5 10.d3 Qc7 11.Rc1 e4 12.Nd2 ed3 13.Bd3 dc4 14.Nc4 Bb4 15.Qb3 Nd5 16.0–0 Nc3 17.Bc3 Bc3 18.Rc3 Be6 19.Qb1 h6 20.Nd2 Qa5 21.Qc2 Rd8 22.Nf3 cb5 23.ab5 Qb6 24.Nd4 Bd5 25.Rc7 Nd7 26.Rc1 Ne5 27.Bf5 g6 28.Bh3 Nc6 29.Rc6 bc6 30.bc6 f5 31.g4 Be4 32.Qc4 Bd5 33.Qc3 Rac8 34.gf5 Rd6 35.fg6 Rg6 36.Kf1 Qa6 37.Ke1 Rf8 38.f4 Rg1 39.Kf2 Rc1 40.Qc1 Qa2 41.Kg3 Rf7 42.Nf5 Rc7 43.Qc5 Bh1 44.Nh6 Kh7 45.Qf5 Kh8 46.Qf8 1–0. Finenko – Zagrekov, 1990.

6.Nf3 Bd6 7.h3 a6 8.Nc3 0–0 9.Be2 e5 10.d4 e4 11.Ne5 Be6 12.Ng4 ab5 13.ab5 Ra1 14.Qa1 Nbd7 15.Nf6 Nf6 16.bc6 bc6 17.Qa4 Bd7 18.Qa2 Bb8 19.Na4 Qc7 20.Nc5 Bc8 21.c4 Rd8 22.Bc3 Re8 23.Bd1 Nd7 24.Nd7 Bd7=+ 25.Bc2 dc4 26.Qc4 Be6 27.Qa4 Bd5 28.Ke2 Rc8 29.Bb3 Qb6 30.Bc2 Qb5 31.Kd2 Qa4 32.Ba4 c5 33.Rb1 cd4 34.ed4 h6 35.Bb4 Bf4 36.Kd1 e3 37.f3 Bf3 (37...Bf3 38.gf3 Rc4+/–). blackiwhite (1840) – near33 (1890), kurnik, 2011.

6.Nf3 Be7 7.d4 0–0 8.Be2 cb5 9.ab5 Ne4 10.0–0 Qb6 11.Ba3 Re8 12.Be7 Re7 13.Qd3 Re8 14.c4 Nd6 15.c5 Bb5 16.cb6 Bd3 17.Bd3 a6 18.Nc3 Nd7 19.Na4 Rac8 20.Rfc1 Rc1 21.Rc1 Nc8 22.Rc7 Ncb6 23.Nb6 Nb6 24.Rb7 Na4 25.Ne5 f6 26.Nf3 e5 27.de5 fe5 28.Bc2 Rc8 29.Ne1 Nc5 30.Rb1 a5 31.Nd3 Ne4 32.Rc1 Nd2 33.Ne5 Nb3 34.Bh7 Kh7 35.Rc8 g6 36.Rb8 a4 37.Ra8 Nc5 38.Ra5 1–0. nordlicht – oliver5, gameknot.com, 2001.

6.Nf3 g6 7.Be2 Bg7 8.0–0 c5 9.c4 0–0 10.Qc2 a6 11.d3 ab5 12.ab5 Ra1 13.Ba1 b6 14.Nbd2 Re8 15.Be5+/– h6 16.Qb2 Bc8?? 17.Ra1 Nbd7+= 18.Bc3 e5+/– 19.Ra7?? d4–+ 20.e4 dc3 21.Qc3 Re7 22.Qa3 Nf8 23.Ra8 Qc7 24.Nf1 Bb7 25.Ra7 Qd6 26.Ne3 Bc8 27.Ra8 Bg4 28.Nd5 Nd5 29.cd5 Rd7 30.h3 Bf3 31.Bf3 Rd8 32.Ra7 Rd7 33.Ra8 Rd8 34.Ra6?? Nd7 35.h4 Nb8 36.Ra7 Rd7 37.Ra8 Rd8 38.Bg4?? h5–+ 39.Bh3 Nd7?? 40.Ra7 Nf6 41.f3 Rd7?? 42.Bd7= Nd7 43.Qa6 Kh7?? 44.Qb7+– c4 45.dc4 Nf6 46.Qf7 Qf8 47.Qf8 Kh6 48.Qg7# 1–0. Fredek (2065) – URKO (1615), Freundschaftspartie, 5m + 0s, 2006.

6.g4 h6 7.h4 Qc7 8.f4 Ne4 9.Rh3 f6 10.d3 Qa5 11.Ke2 Nd6 12.Nc3 Qc7 (12...e5 13.Rg3–/+) 13.Bg2 (13.bc6 Nc6 14.Ke1 Rc8+=) 13...cb5–/+ 14.ab5 Nb5 15.Nb5 Bb5 16.Qb1 Bd7 17.f5 (17.Rg3 Nc6–/+) 17...Nc6 (17...ef5 18.gf5 Bf5 19.Rh1–+) 18.e4 de4 19.de4 Be7 20.Qa2 Nb4 21.Qb3 Bb5 22.Kf3 ef5 23.gf5 a6 24.Ne2 Bc4 25.Qc3 Nc6 26.Bf1 Ne5 27.Kg2 Qc6 28.Ng3 Rc8 29.Bc4 Nc4 30.Bc1 Bd6 31.Qf3 Ne5 32.Qh5 Ke7 33.Ra2 Qc4 34.Rb2 b5 35.Qe2 (35.Bf4 Rhg8 36.Qe2 Rgd8–+) 35...Qa4 (35...Ba3!? 36.Rb1 Bc1 37.Rc1–+) 36.Bf4 Rc4 37.Be5 (better is 37.c3 Rc3 38.Ra2–+) 37...Be5 (37...fe5?! 38.c3–/+) 38.Qg4 (38.c3 Rc3 (38...Bc3?! 39.Ra2 Qb3 40.Ra6–/+) 39.Rd2 Rd8–+) 38...Rg8 (better is 38...Bb2 39.Qg7 Kd6–+) 39.c3 Rc3 40.Re2?? (40.Rd2–+) 40...Qd1 41.Qh5 b4 42.Qg4 (42.Re3 Qd2 43.Re2 Qf4–+) 42...Re3! 43.Kf2 (43.Re3 Qg4 Pinning (43...Qg4 Deflection)) 43...Bg3 (better is 43...Bd4 44.Kg2 Qg1 45.Kg1 Rg3 46.Kh2 Rg4–+) 44.Ke3 (44.Rg3 Re2 45.Qe2 Qe2 46.Ke2–+) 44...Qb3 45.Kd4 (45.Kd2 Rd8 46.Kc1 Rd1) 45...Rd8 (45...Qc3 46.Kd5 Rd8) 46.Kc5 Rc8 (46...Qc3 47.Kb6 Rb8 48.Ka7 Qc5 49.Ka6 Qb6) 47.Kb6–+ Rb8 (better is 47...Qg8 48.Qg7 Qg7–+) 48.Ka7+/– Qg8 49.Rg3 Ra8 0–1. Buzykaev,Vladimir – Lashcov,Andrey, Abakan RUS, Sayany Open, 2013.

6.c4 a5

7.Nf3 Bb4 A) 8.Ne5 0–0 9.Qf3 A1) 9...cb5 10.ab5 a4 11.Bd4 a3 12.Nc3 Bc8=; A2) 9...Ne4 10.cd5 cd5 11.Be2 (11.Nd3 Bd6 12.Nc3 Qh4=) 11...f6 12.Nd3= 12...Bd6=; A3) 9...Qc7 10.bc6 bc6 11.Nd3 Ne4 12.Nb4 ab4=; B) 8.cd5 ed5 B1) 9.Bd3 B11) 9...0–0 10.0–0 Bg4 (10...c5 11.Qc2 c4 12.Be2 Qe7+=) 11.h3 (11.Nc3 Re8 12.Rc1 Ne4=) 11...Bh5 12.Nc3= 12...Re8=; B12) 9...c5 10.0–0 0–0 11.Qc2 c4 12.Be2 Qe7+=; B13) 9...Bg4 10.h3 Bh5 11.g4 Bg6 12.Bg6 fg6=; B2) 9.Be2 0–0 (9...c5 10.Qc2 Qe7 11.0–0 0–0 12.Nc3 Bg4=) 10.0–0 c5 11.Qc2 Re8 12.Nc3= 12...Bg4=.

7.Nf3 Bd6 8.Be2 (8.Be5 Bb4=) 8...0–0 (8...dc4 9.Bc4 0–0 10.0–0=) 9.0–0 Re8 (9...dc4 10.Bc4 Qe7 11.Nc3=) 10.d4 (10.Be5 Be7=) 10...c5 (10...dc4 11.Bc4 Qc7 12.Qb3+=) 11.Ne5 (11.cd5 Nd5 12.Nbd2 cd4+/–) 11...Ne4 (11...Qc7 12.Nd2+=) 12.Nd2 (12.dc5 Nc5 13.f4 Qe7+=) 12...Nd2 (12...Qc7 13.Ndf3+=) 13.Qd2+/– f6 (13...Qc7 14.Rac1+/–) 14.Nd7 Nd7 (14...Qd7 15.cd5 cd4 16.de6+–) 15.cd5 cd4 (15...e5 16.de5 Ne5 17.Rac1+–) 16.de6+– (worse is 16.Qd4 Be5 17.Qd2 Bb2 18.Qb2 ed5+/–) 16...Nc5 17.Bd4 (worse is 17.ed4 Nb3 18.Qe3 Na1 19.Ba1 Rc8+/–) 17...Ne6 18.Bc4 (18.Rfd1 Rc8+–) 18...Kh8 (better is 18...Bh2!? 19.Kh1 Bc7+=) 19.Be6 (19.Rac1 Nd4 20.Qd4 Qe7+–) 19...Re6+/– 20.h3 (20.Rfd1 Bb4 21.Qc2 Rd6+–) 20...Bb4 (20...Qe7 21.Rfd1+–) 21.Qa2 (21.Qd1 Qe7+/–) 21...Re7 (21...Rd6 22.Qf7 Rd7 23.Qe6+/–) 22.Rad1 (22.Rfd1 Qe8+/–) 22...Qe8 23.Rd3 (23.Qe2 Rc8+/–) 23...Rc8 (23...Rd7 24.Rfd1+/–) 24.Rfd1 Rec7 (24...Qg8 25.Qb2+/–) 25.Qa1 Rd7? (better is 25...Qe6+–) 26.Bf6! Rd3 (26...gf6 27.Rd7) 27.Bg7 (27.Rd3?! Qg6 28.Rd8 Rd8 29.Bd8 Qc2+–) 27...Kg8 28.Rd3 Qg6 (28...Qf7 29.Be5 Qe6 30.Qd1+–) 29.Rd7 b6 (29...Qe6 30.Rb7 Be7+–) 30.Qa2 1–0. Noble,W – Baird,J, Sell, 1998.

7.Nf3 cb5

8.ab5 A) 8...dc4 9.Bc4 A1) 9...Ne4 A11) 10.Qa4 Ng5 (10...f6 11.0–0 Nd6 12.Be2 Qb6 13.Nc3+/–) 11.Ng5 (11.Be2 Bc8 12.0–0 Nd7 13.Ne5+=) 11...Qg5 12.0–0+= 12...Bd6 13.f4+=; A12) 10.Nc3 Nd6 11.Be2 Be7 12.0–0 0–0 13.Qa4+=; A2) 9...Bb4 10.0–0 (10.Ba3 Qc7 11.Qc2 Ba3 12.Na3 0–0 13.d4+=) 10...0–0 11.Ne5 Qc7 12.d4 Rc8 13.Ba3+=; A3) 9...Bd6 10.Be5 (10.Qa4 Bc8 11.Ba3 Nbd7 12.Qc2 Nb6 13.d4=; 10.0–0 b6 11.Qa4 Bc8 12.Ne5 Bb7 13.f4=; 10.d3 0–0 11.0–0 Qe7 12.Ne5 Rc8 13.Qf3+=) 10...Ne4 11.Nc3 Be5 12.Ne5 Nd6 13.d4+=; B) 8...Bd6 B1) 9.Qa4 0–0 10.Be5 (10.d4 dc4 11.Bc4 Na6 12.Nc3 Nb4 13.0–0=) 10...Be5 11.Ne5 dc4 12.Bc4= 12...Bc8 13.d4=; B2) 9.Be5 Bc8 (9...Be5 10.Ne5 Bc8 11.d4 Nbd7 12.Nd7 Bd7 13.c5+=) 10.Bd6 Qd6 11.d4 dc4 12.Bc4 0–0 13.0–0+=.

8.cb5 Bd6 A) 9.Ba3 Ba3 10.Ra3 Qe7 11.d4 Qb4 12.Nfd2+= 12...0–0 13.Rb3 Qd6+=; B) 9.Be2 B1) 9...Qe7 B11) 10.Be5 0–0 (10...Ne4 11.0–0 0–0 12.d3 Ng5 13.Bd6 Nf3+= 11.0–0 Rc8 12.Bd6 Qd6 13.d4 b6+=; B12) 10.d4 0–0 (10...Bb4 11.Nc3 Ne4 12.Rc1 0–0 13.0–0 Nf6+=; 10...Ne4 11.0–0 0–0 12.Ba3 Rc8 13.Bd6 Qd6+=) 11.0–0 Rc8 12.Ba3 b6 13.Ne5 Ra7+=; B2) 9...0–0 B21) 10.Ba3 Qb6 (10...Ne4 11.d3 Ba3 12.Ra3 Nd6 13.Rc3 Qe7+=; 10...Ba3 11.Ra3 b6 12.0–0 Qe7 13.d4 Ra7+=; 10...Qe7 11.Bd6 Qd6 12.d4 Ra7 13.0–0 Rc8+=; 10...Qc7 11.d4 Rc8 12.0–0 Ra7 13.Qd3 b6+=) 11.Bd6 Qd6 12.d4 Ra7 13.0–0 Rc8+=; B22) 10.0–0 Qe7 11.Be5 Rc8 12.d4 Bb4 13.Ra2 Be8+=; C) 9.Be5 C1) 9...Qc7 10.Bf6 (10.d4 0–0 11.Bd6 Qd6 12.Bd3 Rc8 13.0–0 Ra7+=; 10.Bd6 Qd6 11.d4 0–0 12.Bd3 Rc8 13.0–0 Ra7+=) 10...gf6 11.Nc3 Qb6 12.d4+= (12.Rc1 f5 13.Be2 f4+=) 12...Bb4 13.Rc1 Qc7+=; C2) 9...Qb6 10.d4 (10.Bd6 Qd6 11.d4 0–0 12.Bd3 Rc8 13.0–0 Rc7+=) 10...0–0 11.Bd3 Rc8 12.0–0 Be7 13.Ra2 Ng4+=; C3) 9...Qe7 10.d4 (10.Bd6 Qd6 11.d4 0–0 12.Nbd2 Rc8 13.Bd3 Rc3+=) 10...0–0 11.Bd6 Qd6 12.Bd3 Rc8 13.0–0 Rc7+=.

8.cd5 ba4 9.de6 fe6 A) 10.Ne5 A1) 10...Bb4 A11) 11.Nd7 Nbd7 (11...Qd7 12.Nc3 0–0 13.Bb5=) 12.Bc4= (12.Qa4 0–0 13.Bc4=) 12...Nc5 13.0–0=; A12) 11.Qf3 Qc7 12.Bc4 0–0 13.Qh3=; A2) 10...Bd6 11.Nd7 Nbd7 12.Bc4 Kf7 13.Bb5=; B) 10.Nc3 Bb4 11.Na4 0–0 12.Bc3 Bc3 13.Nc3=.

8.cb5 Bb4

9.Na3 0–0 10.Nc2 Bd6 11.Be2 (11.Rc1 Qe7 12.Be5=) 11...Be8 (11...Qe7 12.Be5=) 12.0–0 (12.Ba3+=) 12...Nbd7 13.Ba3 Nb6 14.Bd6 Qd6 15.d3 e5 16.Qd2 Bd7 17.Rfc1 Rac8 (17...Bg4 18.Nce1=) 18.Bd1 (18.Qa5 Ra8 19.Qb4 Qb4 20.Nb4 Na4 21.Ne5+–) 18...e4= 19.de4 Ne4 (19...Nc4!? 20.Qd4 Ne4=) 20.Qa5+= Nc4 21.Qb4 Qb4 (21...Rc5!?+/–) 22.Nb4+– Ncd6 (better is 22...Nf6+–) 23.Nd5 Rc1 24.Rc1 Be6 25.Ne7 Kh8 26.Rc7 Rd8 27.Nd4 Nf6 28.Ne6 fe6 29.Bb3 Nfe8 30.Rc1 e5 31.Rc5 e4 32.Re5 Nf6 33.Rc5 Nfe8 34.Kf1 Nf6 35.Ke2 Nd7 36.Rd5 Nf6 37.Rd2 Rd7 (37...g6 38.f3+–) 38.Nd5 Nfe8 39.Rd4 Rd8 (39...g6 40.Nc3 Re7 41.b6+–) 40.Nc3 Nf6 (40...Rb8 41.Ne4 Ne4 42.Re4+–) 41.a5 1–0. Schalkwijk,Peter – Bonnet,William, IECG, 1999.

9.Na3 0–0 10.Be2 A) 10...Bc5 A1) 11.0–0 Qe7 12.Ne5 (12.Nc2 Rc8 13.Be5 Bd6 14.Rc1 Ne4 15.Ncd4=) 12...Rc8 13.Nc2 Bd6 14.Rc1 Ne4 15.f3=; A2) 11.Nc2 A21) 11...Qe7 12.Ne5 (12.Rc1 Rc8 13.0–0 Bd6 14.Be5 Ne4 15.Bd6=; 12.0–0 Rc8 13.Be5 Bd6 14.Rc1 Ne4 15.Ncd4=) 12...Bd6 13.0–0 Ne4 14.d3 Nc5 15.d4+=; A22) 11...Bd6 12.0–0 (12.Rc1 Qe7 13.Be5 Be5 14.Ne5 Ne4 15.0–0=) 12...Qe7 13.Be5 Ne4 14.d3 Be5 15.Ne5=; A3) 11.Rc1 Bd6 12.Nc2 Bc8 13.Be5 Ne4 14.0–0 Be5 15.Ne5+=; B) 10...Bd6 B1) 11.Ne5 Ne4 12.0–0 f6 13.Nd7 Nd7 14.f3 Ng5 15.Rc1=; B2) 11.Nc2 Qe7 12.Ne5 (12.Be5 Ne4 13.Bd6 Qd6 14.d4 Rc8 15.0–0=; 12.d4 Ne4 13.Ba3 Ba3 14.Ra3 Rc8 15.Ra1=) 12...Ne4 13.0–0 Rc8 14.f3 Nc5 15.d4=; B3) 11.0–0 Qe7 12.d4 (12.Ne5 Rc8 13.d3 Ne8 14.Qb3 f6 15.Nd7=) 12...Ne4 13.Qd3 Ng5 14.Nd2 f5 15.Nc2+=; C) 10...Qe7 11.Nc2 Bd6 12.d4 (12.Be5= 12...Ne4 13.0–0 Be5 14.Ne5 f6 15.Nf3=; 12.Ne5 Bc8 13.0–0 Nfd7 14.d4 Nb6 15.Ba3=) 12...Rc8 13.0–0 Ne4 14.Rc1 Qf6 15.Ne5=.

9.Qc2 A) 9...h6 10.Be2 A1) 10...Bd6 11.Ba3 (11.0–0 Qe7 12.Be5 0–0 13.Nc3 Rc8 14.Bd6+=; 11.Be5 Qe7 12.0–0 0–0 13.Nc3 Rc8 14.Bd6+=; 11.Qd3 Bc8 12.0–0 Nbd7 13.Ba3 Ne5 14.Ne5+=) 11...Ba3 12.Ra3 0–0 13.0–0 Qb6 14.Rc1+/–; A2) 10...0–0 11.0–0 Bd6 12.Be5 Be5 13.Ne5 Ne4 14.d3+/–; B) 9...0–0 B1) 10.Bd3 B11) 10...Bd6 11.0–0 (11.Be5 Qe7 12.Nc3 Be5 13.Ne5 Rc8 14.f4=) 11...Qe7 12.Be5= 12...Rc8 13.Qb2 Ng4 14.Bd6=; B12) 10...Qe7 11.Qc7 (11.Be5 Bc8 12.Bd4 Nbd7 13.Ne5 Ne5 14.Be5=) 11...Bd6 12.Ba3 Bc7 13.Be7 Rc8 14.Bf6=; B2) 10.Ng5 Re8 11.Bd3 h6 12.Nf3 Bd6 13.Be5 Be5 14.Ne5=.

9.Bc3 A) 9...Be7 10.Be2 A1) 10...0–0 11.0–0 Ne4 12.Bd4 Bd6 13.d3 Ng5 14.Ng5+=; A2) 10...Ne4 11.Bb2 (11.0–0 Nc3 12.Nc3= 12...0–0 13.d4 Bb4 14.Rc1+=) 11...0–0 12.0–0 f6 13.d3 Ng5 14.Ng5+=; A3) 10...Bd6 11.Be5 (11.0–0 0–0 12.Be5 Qe7 13.Bd6 Qd6 14.d4+=) 11...Qe7 12.0–0 0–0 13.Bd6 Qd6 14.d4+=; A4) 10...b6 11.Bd4 (11.0–0 0–0 12.Bd4 Bc8 13.d3 Nbd7 14.Qc2=) 11...0–0 12.0–0 Bc8 13.Nc3 Nbd7 14.Ne5+=; A5) 10...Bc8 11.0–0 0–0 12.d3 Nbd7 13.Nbd2 Bd6 14.Nb3=; B) 9...Qe7 10.Bb4 (10.Be2 Bd6 11.Be5 0–0 12.0–0 Bb4 13.Nc3 Ne4 14.Bd3+=) 10...Qb4 11.Be2 (11.Nc3 0–0 12.Rb1 Qd6 13.d4 Rc8 14.Qd3=) 11...0–0 12.0–0 Rc8 13.d4 Ne4 14.Bd3+=; C) 9...Bc5 C1) 10.Bd3 Qe7 (10...Bd6 11.0–0 Qe7 12.Be5 0–0 13.Nc3 Be5 14.Ne5+=) 11.Qc2 Bd6 12.Be5 0–0 13.Nc3 Be5 14.Ne5=; C2) 10.Qc2 C21) 10...Bd6 11.Be5 (11.Bd3 Qe7 12.Be5 0–0 13.Nc3 Be5 14.Ne5=) 11...Qe7 12.d4 0–0 13.Bd6 Qd6 14.Bd3+=; C22) 10...Qe7 11.Qb2 (11.Bd3 Bd6 12.Be5 0–0 13.Nc3 Be5 14.Ne5=) 11...0–0 12.Bf6 gf6 13.Nc3 Rc8 14.Be2=.

9.Bd3 A) 9...Qe7 10.Ne5 0–0 11.0–0 (11.Qf3 Rc8 12.0–0 Qd6 13.e4 Rf8 14.Nf7+=) 11...Rc8 12.Qf3 Qd6 13.e4 Rf8 14.Nf7+=; B) 9...0–0 B1) 10.Qc2 B11) 10...Qe7 11.Qc7 (11.Be5 Bc8 12.Bd4 Nbd7 13.Ne5 Ne5 14.Be5=) 11...Bc8 12.Qe7 Be7 13.0–0 Re8 14.Rc1+=; B12) 10...Bd6 11.Be5 (11.0–0 Qe7 12.Be5 Rc8 13.Qb2 Be5 14.Qe5=) 11...Qe7 12.Nc3 Be5 13.Ne5 Rc8 14.f4=; B2) 10.0–0 Qe7 (10...Bd6 11.Be5 Qe7 12.Nc3 Bc8 13.Bc2 Be5 14.Ne5+=) 11.Bd4 (11.Ne5 Rc8 12.Qf3= Bd6 13.Bd4 Be8 14.Nc3=) 11...Rc8 12.Nc3 Bc5 13.Be5 Ng4 14.Bg3+=.

9.Be2 0–0 A) 10.Ba3 Qe7 (10...Ba3 11.Ra3 Ne4 12.d3 Ng5 13.Rc3 Qf6 14.0–0+=; 10...Ne4 11.0–0 Qe7 12.Bb4 Qb4 13.d3 Nf6 14.Nbd2+=) 11.0–0 Ba3 12.Ra3 Rc8 13.Rc3 e5 14.d4+=; B) 10.0–0 Qe7 11.d3 (11.d4 Rc8 12.Ba3 b6 13.Ne5 Ra7 14.Qb3+=; 11.Bd4 Ne4 12.d3 Nd6 13.Bc3 Bc3 14.Nc3+=; 11.Ne5 Rc8 12.d4 Be8 13.Nd3 Bd6 14.Ba3=; 11.Ba3 Rc8 12.d4+= 12...b6 13.Bb4 Qb4 14.Ne5+=) 11...Rc8 12.Nbd2 Bd6 13.e4 Nh5 14.e5+=.

9.Be2 Qe7 A) 10.Ba3 0–0 (10...Ba3 11.Ra3 0–0 12.0–0 Rc8 13.Rc3 Rc3 14.Nc3+=) 11.0–0 Rc8 12.d4 b6 13.Bb4 Qb4 14.Ne5+=; B) 10.Bd4 B1) 10...0–0 11.0–0 (11.Ne5 Ne4 12.0–0 f6 13.Nd7 Nd7 14.d3=; 11.Nc3 Bc8 12.0–0 Nbd7 13.Ne5 Ne5 14.Be5+=) 11...Rc8 12.Nc3 Ne4 13.Ne4 de4 14.Ne5+=; B2) 10...Bd6 11.Ne5 0–0 12.0–0 Ne4 13.d3 Nc5 14.Nc3+=; C) 10.Ne5 C1) 10...Bd6 11.0–0 (11.Ba3 Ba3 12.Ra3 0–0 13.0–0 Bc8 14.d4+=; 11.d4 Ne4 12.0–0 f6 13.Nd7 Nd7 14.f3=; 11.Bd4 0–0 12.0–0 Ne4 13.d3 Nc5 14.Nc3+=) 11...0–0 12.Ba3 Be8 13.d4 Nbd7 14.Qc2+=; C2) 10...0–0 11.0–0 (11.Bd4 Ne4 12.0–0 f6 13.Nd7 Nd7 14.d3=) 11...Rc8 12.Bd4 Ne4 13.d3 Nd6 14.Qb3=; D) 10.Be5 0–0 11.Nc3 Ng4 12.Bd4 f6 13.0–0 Qd6 14.Qb3=; E) 10.Nc3 E1) 10...0–0 11.Ne5 (11.Qb3 Rc8 12.0–0 b6 13.Rfc1 Bd6 14.Ba3+=) 11...Rc8 12.0–0 Qd6 13.Na2 Ba3 14.Ba3+=; E2) 10...e5 11.0–0 (11.Rc1 0–0 12.0–0 Rc8 13.d4 e4 14.Ne5=; 11.d4 e4 12.Ne5 Bf5 13.0–0 Nbd7 14.Qb3=) 11...0–0 12.Rc1 Rc8 13.Qb3 Qe6 14.d4+=; F) 10.0–0 0–0 11.Bd4 (11.Ba3 Rc8 12.Bb4 Qb4 13.d4 b6 14.Ne5+=; 11.Ne5 Rc8 12.Bd4 Ne4 13.d3 Nd6 14.Bg4=; 11.d4 Ne4 12.Ba3 Rc8 13.Bd3 Ba3 14.Ra3+=) 11...Rc8 12.Nc3 Ne4 13.Ne4 de4 14.Ne5+=.

6.c4 a6

7.Nc3 Bb4 8.Qb3 Bc3 9.Bc3 0–0 (9...dc4 10.Bc4 ab5 11.ab5 Ra1 12.Ba1=) 10.d3 (better is 10.ba6!? Na6 11.Qb7+=) 10...ab5+= 11.ab5 Ra1 12.Ba1 cb5 13.c5 Na6 14.d4 Attacks the isolani on b5 (14.Bf6!? Qf6 15.d4+=) 14...Qa5 Black prepares b4 15.Bc3 b4 16.Bd2 Qa1 (16...Bb5!? 17.Nf3 Ne4–/+) 17.Qd1 Qd1 18.Kd1 Ne4 19.Be2?? (better is 19.Be1+=) 19...b3 (19...Nf2 20.Ke1 Nh1 21.g3–+) 20.Kc1?? (20.Be1 Ra8 21.Kc1 Nac5 22.Kb1–+) 20...Nc7 (20...Nf2 21.Kb2–+) 21.Kb2?? (21.Be1 Bb5 22.Kb2 Bc4–/+) 21...Ba4 (21...Nf2!? 22.Ba5 Rc8 23.Kb3 Nh1 24.Bc7 Rc7 25.Kb4–+) 22.f3?? (22.Be1 e5=) 22...Nf6 (better is 22...Nf2–+) 23.Ba5 Na8 (23...Nb5 24.Nh3 Ra8 25.Bb4=) 24.Ka3 Bc6 25.Bd3 Rb8 26.Kb3 b6 27.cb6 Nb6 28.Bb4 (28.Bb6 Rb6 29.Ka3 Bb5 30.Bb5 Rb5=) 28...Ba4 (28...Nc4!? 29.Nh3 Ne3–/+) 29.Kc3= Rc8 30.Kd2 Nc4 31.Bc4 dc4 32.Ne2 Rb8 33.Bc3 Nd5 34.Ra1 Nc3 35.Kc3 Bb3 36.e4 Kf8 37.Nc1 Ke7 38.Rb1 Kd6 39.Nb3 cb3 40.Rb3 Rb3 (40...Rc8!? 41.Kd3 Rc7+–) 41.Kb3 e5 42.d5 Kc5 43.Kc3 g5 44.Kd3 h5 45.h3 f6 46.Kc3 Kb5 47.Kb3 Kc5 48.Ka4 h4 49.Ka5 f5 50.Ka4 fe4 51.fe4 (51.fe4 g4 52.hg4+–) 1–0. Jacobi,Robin (1875) – Wilhelm,Robin, GER–chT U16 Uelzen, 2007.

7.Nc3 ab5 8.cb5 Bb4 9.Nf3 (9…0–0 10.Be2=). Trkn – guest1728, ICC, 2004.

7.Nc3 ab5 8.cb5 cb5 9.ab5 Ra1 10.Qa1 Be7 11.f4 0–0 12.Nf3 Qb6 13.Bd3 Bc5? 14.0–0?? Be3!–/+ 15.de3 Qe3 16.Kh1 Qd3 17.Ne5 Qc4?? 18.Nc4+– dc4 19.Na4 Bb5 20.Nc5 Bc6 21.Bf6 gf6 22.Qf6 Nd7 23.Qg5 Kh8 24.Nd7 Rg8 25.Qg8! Kg8 26.Ne5 Bd5 27.Rc1 b5 28.Kg1 Kg7 29.g3 Kf6? 30.Kf2 h5 31.Ke3 Ba8 32.Kd4 Bd5 33.Kc5 h4 34.Kb5 hg3 35.hg3 Kf5 36.Nf7 Ke4 37.Kb4 Kf3 38.Rc3 Kg4 39.Ne5 Kf5 40.Nc4 Kg4 41.Nb6 Bf3 42.Kc5 Kg3 43.Rc4 Kg4 44.Kd6 Kf5 45.Nd7 Bb7 46.Nf8 Bd5 47.Rb4 Be4 48.Ne6 Bd3 49.Ng7 Kg4 50.f5 Kg5 51.Rd4 Bf5 52.Nf5 Kf5 53.Kd5 Kf6 54.Re4 Kf5 55.Re8 Kf6 56.Rf8 Ke7 57.Rh8 Kf6 58.Kd6 Kg7 59.Re8 Kf6 60.Rf8 Kg7 61.Rf1 Kg6 62.Ke5 Kg5 63.Rg1 Kh6 64.Kf5 Kh7 65.Kf6 Kh8 66.Kf7 Kh7 67.Rh1 1–0. elsh1403 – juric27, kurnik, 2011.

7.Nc3 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Qa1 Be7 11.Nf3 Qb6 12.Na4 Qd8 13.Nc3 0–0 14.0–0 cb5 15.Nb5 Bc6 16.Nfd4 Bd5 17.Rc1 Bc4 18.Rc4 b6 19.h3 Nbd7?? 20.Rc7 Bc5 21.Nc6 Qa8 22.Ra7?? Qc6–+ 23.Nd4 Bd4 24.Bd4 Qd5 25.Qa4 e5 26.Bc3 Nc5 27.Qh4 Nfd7 28.f4 f6 29.fe5 Ne5 30.Qg3 Ne4 31.Qg7 1–0. elsh1403 – igip, kurnik, 2011.

7.Nc3 dc4 8.Bc4 Be7 9.Nf3 0–0 10.Ng5 h6 11.Nf3 cb5 12.ab5 Bb4 13.Qb3 Bc3 14.Bc3 Bc8 15.0–0 Qd7 16.Bf6 gf6 17.Rfc1 Qd6 18.Qc3 Nd7 19.d4 Nb6 20.Bd3 Bd7 21.Qb2 Nd5 22.e4 Nf4 23.Bf1 Bb5 24.d5 Bf1=+ 25.Kf1 Nd3 26.Qf6 Nc1 27.Qh6 f6 28.Rc1 Qe7 29.de6 Qe6?? 30.Rc7 Rf7 31.Ng5! Qd6 32.Qg6 Kf8 33.Qf7 1–0. elsh1403 – kapryss, kurnik, 2011.

7.Nc3 Be7 8.Nf3 0–0 9.Be2 dc4 10.Bc4 Qb6 (10...ab5 11.ab5 Ra1 12.Qa1=) 11.Ne5 (11.a5!? Qd8 12.b6+=) 11...ab5= 12.Nd7 Nbd7 13.ab5 Ne5 14.Be2 Ra1 15.Ba1 Rd8 16.Qb1 cb5 17.Nb5 Nc6 18.Bf6 Bf6 19.d4 Qa5 20.Kf1 ½–½. Schwichtenberg,Juergen (1685) – Neumann,Martin, Karl Mala mem op, 2004.

7.bc6 Bc6 8.cd5 Nd5 9.Nf3 Nd7 10.Be2 N7f6 11.0–0 Bd6 12.g3 0–0 13.Ne5 Rc8 14.Nc6 Rc6 15.d3 Qc7 16.e4 Nb4 17.Qd2?? (better is 17.Bf6 gf6 18.Nd2+=) 17...Rc2–+ 18.Qd1 Rb2 19.Nd2 Rc8 (better is 19...Na2 20.Bf3 Nc3–+) 20.Rc1 (20.Nc4 Rc2–+) 20...Rc2 (better is 20...Qc1 21.Qc1 Rc1 22.Rc1 Rd2 23.Rc8 Bf8 24.Kf1–+) 21.Rc2 Qc2 (21...Nc2!? 22.Nf3–+) 22.Nc4 Bc5 23.Qc2 Nc2 24.Rc1 Nd4 25.Bf1 b5 26.ab5 ab5 27.Ne3 b4 28.Nc4 Rb8 29.Ne5 b3 30.Nc4 Nd7 31.Rb1 Nc6 32.Be2 Bd4 Black plans b2 33.Kg2 b2 34.Kf1 Nc5 35.Ke1 Na4 36.f3 (36.Bd1 Bc3 37.Ke2 Nc5–+) 36...Nb4 (36...Ne5!? 37.Na3–+) 37.h4 1–0. Valpa – Giacat, playchess.de, 2005.

7.Nf3 ab5 8.ab5 Ra1 9.Ba1 dc4 10.bc6 Bc6 11.Bc4 Bb4 12.0–0 0–0 13.Ne5 Bd5 14.Qa4 (14.Bd5 Qd5 15.Bd4 Rc8=) 14...Qa5 (14...Bc4 15.Nc4 Nc6 16.Bf6 Qf6 17.d4=) 15.Qa5 Ba5 Black is in command 16.Nc3 (16.d3 Bb4=) 16...Bc3+= 17.Bc3 Rc8 18.Bd5 (18.Bd3 Nfd7 19.e4 Rc3 20.dc3 Ne5 21.ed5 Nd3 22.de6 Kf8+–) 18...Nd5+= (worse is 18...ed5 19.Rb1 Rc7 20.Nd3+=) 19.Bd4 (19.Rc1 b5+=) 19...f6 20.Nd3 (20.Nf3 Rc2+=) 20...Rc2–/+ 21.Rc1 (21.Rd1 Nc6 22.Bc5 f5+=) 21...Rd2 22.Rc8 (better is 22.Nc5!? e5 23.Ne4–/+) 22...Kf7–+ Do you see the mate threat? 23.Ne1 Nc6 24.Bc5 e5 25.Kf1 (25.h3 e4 26.f3 f5–+) 25...e4 26.h3 (26.f3 f5–+) 26...f5 27.g3 (27.g3 Kg6 28.Re8–+). hal1958 – Fedor, playchess.de, 2002.

7.Nf3 cb5 8.ab5 Be7 9.Be2 0–0 10.0–0 Be8 11.Nc3 Nbd7 (11...dc4 12.Bc4 Bd7 13.Ne5+=) 12.d4 (12.cd5 Qb6+/–) 12...Ne4 (12...ab5 13.Ra8 Qa8 14.cd5 Nd5 15.Nd5 ed5 16.Bb5+=) 13.Ne4 (13.cd5!? Nc3 14.Bc3 ed5 15.ba6 ba6 16.Ba6+/–) 13...de4+= 14.Nd2 Nf6 15.Qc2 ab5 16.cb5 Ra1 17.Ra1 Qd5 18.Bc4 Qh5 19.Ne4 Ng4? (better is 19...Ne4 20.Qe4 Bd6+/–) 20.h3+– Nh6 21.Ng3 Qh4 22.Qe4 Qe4 23.Ne4 Bd7 24.Ra7 Bc8 25.Kf1 Nf5 26.g4 Nd6 27.Nd6 Bd6 28.Ke2 Kh8 29.Bd3 f5 30.gf5 ef5 31.f4 Re8 32.Kf2 h5 33.Bc4 Rf8 34.Bd5 Bb8 35.Ra8 (35.b6 Rd8 36.Bg2 Kh7+–) 35...Bd7 (35...Bd6+–) 36.b6 (36.Bb7?! Bb5 37.Bf3 Bd6+–) 36...Rc8 37.Ba3 Kh7 38.Bb7 Rh8 39.Bf3 g5 (39...Re8 40.b7 h4 41.d5+–) 40.fg5 Bg3 (40...h4 41.Ra7! Ba7 42.ba7 Kg6+–) 41.Kg3 Ra8 1–0. mr5reasons1 (1620) – bucurdragos (1620), gameknot.com, 2012.

6.c4 dc4

7.Bc4 a6 8.ba6 Na6 9.Nf3 =.

7.Bc4 a6 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 cb5 11.Nb5 Bc6 12.Nf3 Be7 13.Nbd4 0–0 14.0–0 Bd5 15.Rc1 Nbd7 16.Bd3 e5 17.e4 Ne4 18.Nb3? Nec5 19.Nc5 Nc5 20.Ne5 Nb3 21.Bh7 Kh8 22.Qb1 Nc1 23.Ng6?? fg6 24.Qg6 Ne2 25.Kf1 Rf2 26.Kf2–/+ Bf6 27.Bf6 Qf6 28.Ke2 ½–½. Nielsen,Joergen Axel – Soerensen,J, Randers, 1973.

7.Bc4 a6 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 Be7 11.Nf3 0–0 12.0–0 cb5 13.Nb5 Nc6 14.Ne5 Ne5 15.Be5 Bb5 16.Bb5 Bd6 17.Bd4 Qc7 18.h3 Be7 19.Rc1 Qd8 20.Qa7 Ne4 21.d3 Nd2? 22.Qb7 Nb3 23.Bb6 Qd5 24.Qd5 ed5 25.Rc7 Bf6 26.Bc6 d4 27.Bd5 Nd2 28.Bd4 Bd4 29.ed4 Nb1 30.Kf1 Na3 31.Ke2 Nb5 32.Rd7 Nd4 33.Ke3 Nf5 34.Kf4 g6 35.g4 Nh4?? 36.Kg5 Nf3 37.Bf3 Kg7 38.Bd5 h6 39.Kh4 Kf6 40.f4 g5 41.Kg3 gf4 42.Kf4 Kg6 43.d4 Kf6 44.h4 Kg6 45.Be4 Kf6 46.Bd5 Kg6 47.Bb3 Kf6 48.d5 Kg6 49.d6 Kf6 50.g5 hg5 51.hg5 Kg6 52.Bc2 Kg7 53.Bb3 Kg6 54.Bc2 Kg7 55.Kf5 Rc8 56.Bb3 Rc5 57.Kg4 (57.Kg4 Rb5 58.Rf7 Kg6 59.d7 Rb4 60.Bc4 Rc4 61.Rf4 Kg7 62.Rc4 Kf7 63.d8Q Ke6 64.Rc7 Ke5 65.Re7) 1–0. elsh1403 – fredzio45, kurnik, 2011.

7.Bc4 Bb4 8.Qb3 Ba5 9.Nc3 cb5 10.ab5 0–0 11.Nf3 Bb6 12.0–0 a6 13.h3 Be8? 14.Rfd1 Nbd7 15.d4 Rc8 16.Ng5 Rc4? 17.Qc4+– ab5 18.Nb5 h6 19.Nf3 Nd5 20.e4 Nf4 21.d5 Nc5 22.de6 Bb5 23.Qc3 Qf6 24.Qf6= gf6 25.e7 Re8 26.Bf6 Ng6?? 27.Rab1 Ne7?? 28.Rb5+– Ba7 29.Be7 Re7 30.e5 Ne4 31.Rb2 Nc3 32.Rd3 Ne4 33.Rdb3 b5 34.Rb5 Nc3 35.Rb7 Rb7 36.Rb7 (36.Rb7 Bc5 37.Ne1+–) 1–0. elsh1403 – bush45, kurnik, 2011.

7.Bc4 Bd6 8.Bf6 Qf6 9.d4 =+.

7.Bc4 cb5

8.ab5 a6 9.Nc3 Be7 10.Nf3 0–0 11.0–0 Qc7 12.d3 Rd8 13.Qb3 a5 14.Ne4 b6 15.Ne5 Be8 16.Nf6 Bf6 17.d4 Be5+= 18.de5 Nd7 19.Rfd1 Nc5 20.Qc2 Qe7 21.Ba3 Rd7 22.Rd7 Bd7 23.Rd1 Rd8 24.f4 Bc8 25.Rd8 Qd8 26.h3 Qe7 27.Kh2 Bb7 28.Bc5 Qc5= 29.Qb3 Be4 30.Kg3? h6?? 31.Bd3?? Qe3–+ 32.Kh2 Qf4 33.Kh1 Qc1 34.Kh2 Qf4 35.Kh1 Bd3 36.Qd3 Qe5 37.Qd8 Kh7 38.Qb6 g6?? 39.Qa5= (39…Qc5 40.Qa6=). stoker – henroo1, Caissa.com, 2004.

8.ab5 a6 9.Nf3 Qc7 10.Qb3 Be7 11.0–0 0–0 12.Rc1 Qb6 13.Bd4 Qd8 14.Nc3 Be8 15.Ne5 Nbd7 16.ba6 ba6? 17.Ra6 Ra6+/– 18.Ba6 Ne5 19.Be5 Nd7 20.Bg3 Nc5= 21.Qc4 Bf6?? 22.d4 Na6 23.Qa6 Qc8?? 24.Qc8 (24.Qc8 Be7 25.Qb7+–) 1–0. carocan (1665) – ferdekll, kurnik, 2011.

8.ab5 Qb6 9.Qb3 a6 10.Nf3 Bb5?? 11.Bb5+– Qb5 12.Qb5 ab5 13.Ra8 (13.Ra8 Bd6 14.Na3+–) 1–0. carocan (1755) – mlodykrawat (1690), kurnik, 2011.

8.ab5 Bc8 9.Nf3 Nbd7 10.0–0 b6 11.d4 Bb7 12.Nbd2 Bb4 13.Qb3 Bd2 14.Nd2 0–0 15.Bd3 Re8 16.f4 Ng4 17.e4 f5 18.Bc4 Qf6 19.h3 Nh6 20.d5 Qg6 21.Rf3 Nc5 22.Qc3 Qf6 23.Qa3 Qe7? 24.Rg3+– Qh4?? 25.de6 Re7 26.Qc3 Qf4 27.Qg7! Rg7 28.e7 Nf7 29.Rg7 1–0. Brinks,Jan Willem – Soeteman,Jeroen, NED–ch U20 op, 2000.

8.ab5= Ne4 9.d3 Nd6 10.Nc3 =.

8.ab5= Be7 9.Nc3 Qc7 10.Bd3 0–0 11.Na4 Rc8 12.Bd4 Qd8?? 13.Nb6!+– ab6 14.Ra8 Bc5 15.Be5 Be8 16.Qb3 Nbd7 17.Rc8 Qc8 18.Bb2 Nd5 19.Bh7?? (19...Kh7 20.Ne2=; better is 19.Nf3+–) 1–0. Kasper,Peter – Neubauer,Wolfgang, Spree op, 1997.

8.ab5 Be7 9.Nf3 0–0 10.0–0 a6 11.Qb3 Qb6 12.d4 Rc8 13.Nbd2 Be8 14.Rfc1 Nbd7 15.ba6 Qb3 16.Bb3 Rc1= 17.Bc1 ba6 18.Nc4 Nd5 19.Bd2 N7f6 20.Ba4 Ba4 21.Ra4 h6 22.Kf1 Rc8 23.Nfe5 Ra8 24.g3 Ne4 25.Be1 Nd6 26.e4? Nc4 27.Nc4 Nf6 28.f3 Bf8 29.Ke2 Nd7 30.Kd3 Rb8? 31.Ra6+– Rb3 32.Bc3?? Bb4–+ 33.Ra8 Nf8 34.Rd8?? Rc3 35.Ke2 Rc4 0–1. carocan (1715) – ferdekll, kurnik, 2011.

8.ab5 Be7 9.Nf3 0–0 10.Ne5 Be8 11.0–0 Qb6 12.Qb3 Bd6 13.h3 Ne4 14.d4 Be5 15.de5 Nc5 16.Qd3?? Nd3–+ 17.Bd3 Bb5 18.Bb5 Qb5 19.Bd4 Nc6 20.Nc3 Qc4 21.Rac1 Nd4 22.Ne4 Ne2 23.Kh2 Qe4 24.Rce1 Qe5 25.f4 Qb2 26.Rf2 Qf6 27.Ree2 a5 28.e4 b5 29.e5 Qf5 30.g4 Qd3 31.f5 ef5 32.gf5 b4 33.Rd2 Qe4 34.Rde2 Qd5 35.e6 fe6 36.Re6 Qe6! 37.fe6 Rf2 38.Kg3 Re2 39.Kf3 Re6 40.Kf4 Kf7 41.Kf5 Rd8 (41...Rd8 42.Kg4 Rd3 43.h4 Re4 44.Kf5 Rh4 45.Kg5 Rc4 46.Kf5 Rd5; 41...Rae8 42.Kg4 Re3 43.h4 Kg6 44.h5 Kf6 45.h6 R8e4 46.Kh5 g6) 0–1. nizinna – zeneknb55, kurnik, 2011.

7.Bc4 Be7

8.Nf3= 0–0 9.0–0 a6 10.Nc3 =.

8.Nf3 0–0 9.0–0 a6 10.Ne5 ab5 11.ab5 Ra1 12.Ba1 cb5 13.Nd7 Qd7 14.Be2 Na6 15.Qb3 Nc7 16.Rd1 Nfd5 17.g3 Ra8 18.Nc3 Nc3 19.Bc3 h6 20.Be5 b4 21.Qb2 f6 22.Bc7 Qc7 23.d4 Qc3 24.Qc3 bc3–/+ 25.Rc1 Ra3 26.Bc4 Kf7 27.Kf1 Bb4 28.Ke2 b6 29.Kd3 Ra7 30.d5 ed5 31.Bd5 Ke7 32.e4 Kd6 33.Kc4 Ba5 34.f4 Rc7 35.Kb5 Rc5 36.Ka6? Rd5 37.ed5 Kd5 38.Kb5 Ke4 39.Kc4–/+ Ke3 40.Kb3 Kd2 41.Rc2 Kd3 42.Rc1 Ke3 43.Re1 Kd2 44.Rg1 b5 45.Rg2 Kd3 46.g4 Bc7 47.f5 Bd6 48.h4 b4 49.g5? hg5 50.hg5 Ke4 51.gf6 gf6 52.Rf2 Ke3 53.Rf1 Ke2 54.Rh1 Kd3?? 55.Rh3 Ke4–+ 56.Rh5 Kf4 57.Kc2 Kg4 58.Rh7 Kf5 59.Rd7 Ke5 60.Rd8 f5 61.Re8 Kd5 62.Rf8 f4 63.Rf5 Ke4 64.Rf7 f3 65.Rd7 Ke5 66.Rf7 Ke4 67.Rd7 Bc5 68.Rf7 Ke3 69.Rf5 Bd4 70.Kb3 f2 71.Kc4 c2 72.Rf2 Kf2 73.Kd4 c1Q 74.Kd3 b3 75.Kd4 b2 76.Kd3 b1Q 77.Kd4 Qa3 78.Kc4 Qbb4 79.Kd5 Qaa5 80.Kc6 Qbb6 81.Kd7 Qaa7 82.Kc8 Qbb8 (82...Qac7) 0–1. poganinbezdom – janjanin (1905), kurnik, 2011.

8.Nf3 0–0 9.0–0 cb5 10.ab5 Qb6 11.Qb3 a6 12.Bd4 Bc5 13.Bf6 gf6 14.ba6 Qb3 15.Bb3 Ra6 16.Nc3 Nc6 17.d4 Bb4 18.Ne4 Kg7 19.h3 Rfa8 20.Ra6 ba6 21.Ba4 Nb8 22.Bd7 Nd7 23.Ra1 a5 24.Nfd2?? Nb6?? 25.Nb3 Nd5 26.Nec5 a4? 27.Ra4+– Ra4 28.Na4 f5 29.Nac5 Kf6 30.Nd7 Kg6 31.Ne5 Kf6 32.Nc1 Nc3 33.Ncd3 Bd6 34.Nc4 Ne2?? 35.Kf1+– Nd4 36.ed4 Bc7 37.g3 h5 38.h4 Ke7 39.Ke2 f6 40.Kf3 Bb8 41.Nf4 Ba7 42.Ke3 e5 43.Nh5 Bd4 44.Kf3 Ke6 45.Ng7 Kd5 46.Ne3 Be3 47.fe3 e4 48.Kf4 Kd6 49.Nf5 Ke6 50.Ke4 Kf7 51.Nd6 Ke7 52.Nf5 Kf7 53.g4 Ke6 54.g5 Kf7 55.Nd6 Kg6 56.gf6 Kf6 57.Kd5 Kg6 58.e4 Kh5 59.e5 Kh4 60.e6 Kg5 61.e7 Kf6 62.e8Q Kg5 63.Qf7 Kg4 64.Qf5 Kg3 65.Ke4 Kh2 66.Qg4 Kh1 67.Kf3 Kh2 68.Qg2 1–0. nizinna (1605) – charcot, kurnik, 2011.

8.Nf3= 0–0 9.0–0 h6 10.d4 (10.d3 a6=) 10...a6 11.ba6 (11.Ba3 ab5 12.ab5 Bd6+=) 11...Na6 12.Ba6 (12.Ne5 Nb4+=) 12...Ra6= 13.Nc3 (13.Ba3 b6=) 13...Re8 (13...Qa5 14.Ne5=) 14.Qe2 (14.Ba3 Nd5 15.Be7 Qe7=) 14...Nd5 (14...Qa5 15.Ne5=) 15.Rfb1 (15.e4 Nf4 16.Qd2 Qc7=) 15...Ra7 (15...Bb4 16.Qc2=) 16.Ne5 (16.e4 Nf4 17.Qe3 Bg5 18.Ng5 Qg5=) 16...Bd6 (16...Bb4 17.Qc4 Bd6 18.e4 Nc3 19.Qc3 Be5 20.de5=) 17.Nd7 (17.Ne4 Bb4+=) 17...Qd7= 18.Ne4 (18.e4 Nf4 19.Qe3 b6=) 18...Rea8 (18...Bc7 19.Nc5 Qd6 20.f4=+) 19.Qc4 (19.Nd6 Qd6 20.Qc2 Qc7=) 19...Be7 (19...Nb6!? 20.Qc2 Na4–/+) 20.Nc5= ½–½. Dessing,Bastiaan – Vandewalle,Christophe, Hengelo op U12, 2001.

8.Nf3= a6 9.Nc3 =.

8.Nf3 cb5 9.ab5 0–0 10.0–0 Bc8 (10...Bd6 11.Be5 Be5 12.Ne5 Bb5 13.Nf7=) 11.Qc2 h6 (11...Bd6 12.d3=) 12.Rc1 Nbd7 13.Nc3 (13.d4 Nd5+=) 13...b6 (13...Nb6 14.Be2+=) 14.d4+/– Qc7 (14...Bb7 15.e4+/–) 15.Bd3 Qb8 (15...Qd6 16.Ba3 Qa3 17.Ra3 Ba3 18.Ra1+–) 16.e4 (16.Ba3 Ba3 17.Ra3 Qd6+/–) 16...Bb7 17.e5 (17.Ba3 Ba3 18.Ra3 Rc8+/–) 17...Nd5+= 18.Nd5 Bd5 19.Qc7 Rd8 20.Qb8 Rdb8 21.Rc7 Rb7 22.Rac1 Rab8 (22...Rd8 23.Rc8+=) 23.Rc8 (23.Kf1 Rd8+/–) 23...Bd8 (23...Rc8 24.Rc8 Nf8 25.Kf1+=) 24.Nd2 (24.Ba3 Rc8 25.Rc8 Rb8+/–) 24...Rc8 25.Rc8 Rb8 26.Rc2 Bb7 (26...Bg5 27.Ne4+=) 27.Ne4+/– Nf8 (27...Rc8 28.Rc8 Bc8 29.Nd6 Ne5 30.de5+–) 28.Nd6 Bd5 29.f4 Ng6 30.g3 Ne7 31.Ba3 Bb7 (31...Ra8 32.h3+/–) 32.f5 (32.Nb7 Rb7 33.Be7 Be7 34.Rc8 Bf8+/–) 32...Nd5 (32...Nf5 33.Nb7 Rb7 34.Bf5 ef5 35.d5+=) 33.Kf2 (33.Nb7 Rb7 34.Rc6 ef5+–) 33...Be7 34.Be4 (34.Ra2 Bd6 35.Bd6 Ra8+/–) 34...Bd6 (34...a5 35.ba6 Ba6 36.h3+/–) 35.ed6 (35.Bd6 Rd8+/–) 35...Rd8 (35...ef5 36.Bf5 g6 37.Be4+/–) 36.g4 (36.fe6 fe6 37.Rc7 Nc7 38.dc7 Rc8 39.Bb7 Rc7+/–) 36...Rd7 (36...ef5 37.Bf5 g6 38.Be4+/–) 37.h3 (37.Bd5 ed5 38.Rc7 Rc7 39.dc7 a5+–) 37...g6 38.fe6 fe6 39.Bg6 Kg7? (39...Nf4 40.Be8 Nh3 41.Ke3 Rd8+–) 40.Be8+– Rd8 41.d7 (41.Bc6 Ba8+–) 41...Kf6 (41...a6 42.ba6 Ba6 43.Kg3+–) 42.Kg3 (42.Bc1 Nb4 43.Rc3 Na2+–) 42...Kg7 (42...a5 43.Rf2 Kg7 44.Bf8 Kh7 45.Rf7 Kg8 46.Bh6+–) 43.h4 (43.Re2 Nc3 44.Re5 Kf6+–) 43...Nf6? (better is 43...a5+–) 44.Be7 (44.Be7 Ne8 45.Bd8+– (45.de8R?! Re8 46.Rc7 Bd5+–; 45.de8Q?! Re8 46.Rc7 Bd5+–)) 1–0. Brand,Thomas (1910) – Schriebl,Alexander (1740), Gleisdorf ch, 1996.

6.c4 Bc5

7.Nf3+= 0–0 8.Nc3 a6 +=.

7.Nf3+= 0–0 8.d4 Bb4= 9.Bc3 a5 =.

7.Nf3 0–0 8.d4 Bb4 9.Nbd2 a6 10.Qb3 c5 11.Bc3 ab5 A) 12.Bb4? bc4 (< 12...cb4 13.cb5 Qa5 14.Bd3+=) 13.Qc3 cb4 14.Qb4 b6–+; B) 12.cb5 Bc3 13.Qc3=+.

7.Nf3+= 0–0 8.d4 Bb4= 9.Nbd2 Ne4 (9...a6 10.cd5 cd5 11.Bd3 ab5 12.ab5 Ra1 13.Qa1= (worse is 13.Ba1 Qa5–/+)) 10.Ba3= Ba3 11.Ra3 Nd2 12.Qd2 cb5 (12...a6!? 13.ba6 Na6=) 13.ab5+/– Qe7 (13...a5 14.Qa2+/–) 14.c5 a6 (14...Rc8 15.Bd3+–) 15.Bd3+– Bb5 (better is 15...f6+–) 16.Bb5 Nc6 (16...b6 17.0–0 bc5 18.Raa1+–) 17.Bc6 bc6 18.0–0 Qc7 (18...Rfb8 19.Ne5 Qc7 20.Qa5+–) 19.Rfa1 Qb7 20.Qd3 Rfb8 21.h3 f6 22.Ra6 Ra6 23.Qa6 Qa6 (23...Qc7 24.Qe2+–) 24.Ra6 Rb1 (24...Rc8 25.Ra7+–) 25.Kh2 Rb2 (25...Rb7 26.Rc6 Kf7 27.Kg3+–) 26.Kg3 (26.Rc6 Kf7 27.Rc7 Ke8 28.Rg7 Rf2 29.Rh7 Re2+–) 26...Kf7 27.Ra7 Kg6 (27...Kg8 28.h4+–) 28.Rc7 h5 (28...Rb8 29.Rc6 Re8 30.Rc7+–) 29.Rc6 Rb8 (29...Kf7 30.Rc7 Kg6 31.Re7+–) 30.Re6 Rc8 (30...Kf7 31.Rb6 Rg8 32.Rd6+–) 31.Rd6 1–0. Taulien,Hans_Juergen (2350) – Pieleck,Rudi (1770), remoteschach.de, 2002.

7.Nf3 0–0 8.Be2 h6 9.0–0 a5 10.d4 Bb6? (better is 10...Bb4+/–) 11.c5+– Bc7 (11...cb5 12.cb6 b4 13.Nbd2+–) 12.b6 Bh2 13.Nh2 Ne4 (13...Na6 14.Nc3+–) 14.Nc3 e5 15.Ne4 de4 16.de5 Be6 17.Qc2 Nd7 18.Rad1 Bd5 19.f4 Qe7 20.Bd4 Rad8 21.Ng4 Rfe8 22.Qc3 Be6 (22...h5 23.Nf2 h4 24.Qa5+–) 23.f5 Bd5 24.f6 Qe6 25.Qe1 Bc4 (25...Kh7 26.fg7 Qg6+–) 26.Nh6 Kf8 27.Qh4 Be2 28.Nf5 Kg8 (28...Bh5 29.fg7 Kg8 30.Qh5 Qh6 31.Qh6 f6 32.Nd6 Ne5 33.Qh8) 29.Qg5 g6 30.Qh6 Nf6 (30...Qf6 31.ef6 Bd1 32.Qg7) 31.Qg7 1–0. pierred (2845) – nerob (2055), net–chess.com, 2015.

6.c4 Be7

7.Nc3 0–0 8.Nf3 a6 9.Be2 ab5 10.cb5 cb5 11.ab5 Ra1 12.Ba1 Qa5 13.Qb1 Bb4 14.0–0 Rc8 15.h3 Be8 16.Rc1 Nbd7 17.e4 de4 18.Ne4?? Rc1–+ 19.Qc1 Ne4 20.Qb2 Ndf6 21.Bd3 Nc5 22.Bc2 Bb5 23.Ng5 Bd2 24.Nh7 Ncd7 25.Nf6 Nf6 26.Qe5 Bb4 27.Bd4 Bc6 28.Qb8 Bf8 29.Bf6 Qe1 30.Kh2 gf6 31.Qg3–/+ Bg7 32.Qb8 Bf8 33.Qg3 Bg7 34.Qd3?? Qe5 35.g3 Qe1 36.Qh7 Kf8 (36...Kf8 37.Be4 Qf2 38.Kh1 Qe1 39.Kh2 Be4 40.Qe4 Qe4 41.h4 Qe2 42.Kh3 b5 43.h5 Bh6 44.Kh4 Qe4 45.g4 Qg2 46.g5 fg5) 0–1. j1a9n55 – f1v, kurnik, 2011.

7.cd5 cd5 8.Bd3 (8.Nf3 a6=) 8...a6 (8...0–0 9.Nf3=) 9.Nf3 ab5 (9...Bd6 10.0–0=) 10.ab5 Ra1 11.Ba1 0–0 12.Bd4 (12.0–0 Qc7=) 12...Ne4 13.Nc3 f6 (better is 13...Nc3!? 14.dc3 f6+=) 14.Ne4+/– de4 15.Be4 Bb5 16.Bh7! Kh7 Decoy theme: h7 17.Qb1 Theme: Double Attack 17...Kg8 (17...g6 18.Qb5 Qd7 19.Qb1+/–) 18.Qb5 Qc7 (18...Qd7 19.Qb3+/–) 19.0–0 Nc6 (19...Qd7 20.Qb3+/–) 20.Bb6 (20.Rb1 Rc8+/–) 20...Qd6 21.d4 (21.Rb1 Qd5+/–) 21...Rf7 (21...Qb4 22.Qb4 Nb4 23.Rb1+/–) 22.Qh5 (22.Rb1 Qd7+–) 22...Nb4+/– 23.Ba7 (23.Bc5 Qd5 24.Qd5 Nd5+/–) 23...Nd5 (23...b6!? 24.Ra1 Nc2+=) 24.Bc5 (24.Nh4 g5 25.Bc5 Qc6+–) 24...Qd7 (24...Qc6 25.Be7 Re7 26.Nh4+–) 25.Rc1 (25.Nh4 g5 26.Ng6 Rh7 27.Ne7 Ne7+–) 25...Bc5 (25...Bd6 26.Ra1+–) 26.Rc5 (26.Rc5 Rf8 27.Ra5+/–; 26.dc5 Rf8+–) 1–0. marekt – gunar, ChessWorld.net, 2002.

7.cd5 ed5 8.Nf3 Qb6 9.Bd4 c5 10.Bb2 a6 11.Ne5 ab5 12.Nd7 Nbd7 (worse is 12...Nfd7 13.Bg7 Rg8 14.ab5 Ra1 15.Ba1+/–) 13.Bb5 0–0 14.0–0 Rfd8 15.Qc2 Rac8 16.h3 h6 17.Nc3 d4 18.Ne2 Qd6 19.ed4 cd4 20.Qd3 Nc5 21.Qd4 Qd4 (21...Nb3!? 22.Qd6 Rd6+/–) 22.Nd4+/– (22.Bd4?! Nb3 23.Bf6 Bf6=) 22...Nfe4 23.d3 (23.Nf5 Bf8 24.d3 Nd3 25.Bd3 Rd3 26.Bg7 Bg7 27.Ne7 Kf8 28.Nc8 Ba1 29.Ra1 Rd2+/–) 23...Bf6 (better is 23...Nd6!?=) 24.de4+/– Bd4 25.Bd4 Rd4 26.f3 Ra8 27.a5 (27.Rfc1!? b6 28.Rab1+/–) 27...Nb3+= 28.Ra3 Na5 29.Rfa1 b6 30.Rb1 Rad8 31.Bf1 Rd1 32.Rd1 (32.Rb6? Nc4 33.Rba6 Nd2–+) 32...Rd1 33.Kf2 Rd2 34.Ke1 Rb2 35.e5 Rb3 36.Rb3 Nb3 37.Bc4 Nd4 38.Kd2 Kf8 39.Kd3 Ne6? (better is 39...Nc6!? 40.f4 Ke7+=) 40.Be6+– fe6 41.Kc4 Kf7 42.Kb5?? (better is 42.h4+–) 42...Kg6= 43.f4?? (better is 43.Kc6!? b5 44.Kb5=) 43...Kf5–/+ 44.g3 g5 45.fg5 hg5 (45...Kg5 46.Kc6 b5 47.Kb5 Kf5–+) 46.Kb6= Ke5 47.h4 gh4 48.gh4 Kf5 49.Kc5 e5 50.h5 e4 ½–½. Hal1958 – Nico21, playchess.de, 2006.

7.Nf3 h6 8.Qc2 0–0 9.Be2 cb5 10.cb5 a5 11.0–0 b6 12.Rc1 Ra7 13.Ne5 Bd6 14.d4 Rc7 15.Qd1 Rc1 16.Qc1 Qc8 17.Nd2 Qc1 18.Rc1 Rc8 19.Rc8 Bc8 20.Ndf3 Nbd7 21.Nc6 Nf8 22.Nfe5 Bd7 23.Nd7 N8d7 24.Bc3 Ne4 25.Be1 Ba3 26.f3 Nd6 27.Bd3 Bc1 28.Kf2 f5 29.Nd8 Nf8 30.Ke2 Nf7 31.Nb7 Ba3 32.Bg3 Be7 33.Bc7 Nd7 34.e4 g6 35.ed5 ed5 36.Bc2 Kg7 37.Bb3 Kf6 38.Bd5 g5 39.Bc6 Nf8 40.Bb6 Nd6 41.Na5 f4 42.Bc7 Nc8 43.Bb7 Nd6 44.b6 Nb7 45.Nb7 Bb4 46.a5 Nd7 47.a6 1–0. purplegadge (1770) – savarth, gameknot.com, 2014.

7.Bf6 Bf6 8.d4 0–0 9.c5 (9.cd5 ed5 10.Nc3 Qa5+=) 9...b6 10.Qc2 a5 (10...e5 11.de5 Be5 12.Ra2–/+) 11.Nc3 (better is 11.Ra2!?=) 11...bc5–/+ 12.dc5 cb5 (better is 12...Qe7!?–/+) 13.ab5= Bc3 (13...Qc7!? 14.c6 Rc8=) 14.Qc3+= a4 15.c6 Nc6 (better is 15...Qc7!?+/–) 16.bc6+– Bc6? (better is 16...Rc8 17.Bb5 Qb6 18.Ba4 Bc6+–) 17.Qc6 Qa5 18.Ke2 Rfc8 19.Qb7 (19.Qd6 a3 20.Qe5 Qb5 21.Kf3 Qb2+–) 19...Rc2? (19...Qc3 20.Qb1 Rcb8=) 20.Kf3 h5 (20...a3 21.Nh3+–) 21.Bd3 Rd2 22.Be2 (22.Ra3 Qd8 23.Nh3 g5+–) 22...Ra7 (22...Qd8 23.Rf1+–) 23.Qb8 Kh7 24.Qb1 (24.Nh3!? d4 25.Bb5 a3+–) 24...g6 25.Nh3 Re2 (25...e5 26.Bf1 e4 27.Kg3 Qd8+–) 26.Ke2 d4 27.ed4 Qa6 (27...Qd5 28.f3 Qd4 29.Rd1 Qe5 30.Kf2 Qc5 31.Kf1+–) 28.Qd3 Qc6 29.f3 a3 30.Rhc1 Qa4 (30...Qd6 31.Rc5+–) 31.Ng5 Kg7 32.Rc4 (32.Kf1!? Qa5 33.Rc5 Qb4+–) 32...Qb5 33.Ne6! Kf6 (33...fe6 34.Rc7 Pinning) 34.d5 (better is 34.Rb1 Qf5 35.Qf5 Kf5+–) 34...Qb2 35.Rc2 (better is 35.Qd2 Qd2 36.Kd2 fe6 37.de6 Ke6 38.Rc3+–) 35...Qa1 36.Nd4?? (better is 36.Ng5! a2 37.Qe3+–) 36...Re7= 37.Ne6 fe6 38.Rc6?? (better is 38.d6!? Rd7 39.Qe4=) 38...Qe5 (38...a2!? 39.d6 Qe5 40.Qe4–+) 39.Kf2?? (39.Qe4 Qb2 40.Kd3–+) 39...a2–+ (39...Qh2?! 40.d6 Rd7 41.Qa3 Qh4 42.Ke2=) 40.Re6 (40.Ra6 a1Q 41.Ra1 Qa1 42.de6–+) 40...Re6 41.de6 a1Q 42.Qd8 Kf5 (42...Ke6 43.Qg8 Ke7 44.Qh7 Qg7 45.Qg7 Qg7 46.Kf1–+) 43.Qf8 (43.Qd3 Kg5 44.Qd8 Kh6 45.Qf8 Qg7 46.Qg7 Kg7–+) 43...Ke6 44.Qg8 Kd6 45.Qg6 Kd5 (better is 45...Kc7 46.Qc2 Kb6–+) 46.Qf7 (46.Qg8 Qe6 47.Qe6 Ke6 48.h4–+) 46...Kc5 47.Qf8 Kb5 0–1. Baer,Cy (1895) – Klawitter,Bernd (1790), RSS7E easy–68, 2008.

5.e3 Nbd7

6.c4 cb5 7.ab5 A) 7...Nb6 8.cd5 Nbd5 (8...ed5 9.Nf3 Bd6 10.Be2 0–0 11.0–0 Qe7 12.Bd4 Be6 13.Nc3 Rfc8; 8...Nfd5 9.Nf3 f6 10.d4 Bd6 11.Ba3 0–0 12.Bd3 Nb4 13.Bb4 Bb4) 9.Nc3 (9.Nf3 Bd6 10.Be2 0–0 11.0–0 Qc7 12.Qb3 e5 13.Rc1 Qe7) 9...e5 10.Nd5 Qd5 11.Nf3 Bd6 12.b6 (12.Ra4 e4 13.Nh4 Be5) 12...a6 (12...a5 13.Qa4 Bd7) 13.Qa4 (13.Rc1 e4) 13...Bd7; B) 7...dc4 8.Bc4 B1) 8...Bb4 9.Nf3 Nb6 10.Be2 Bd6 (10...0–0 11.0–0 Bd6 12.Be5 Be5 13.Ne5 Nfd7) 11.0–0 0–0 12.Be5 (12.d4 a6 13.Nc3 Nbd5) 12...Be5 13.Ne5 Nfd7; B2) 8...Bd6 9.Nf3 Nb6 10.d3 0–0 11.0–0 Qe7 12.Bf6 Qf6 13.Nbd2 Qg6; B3) 8...Nb6 9.Be2 Bd6 10.Nf3 (10.d4 0–0 11.Nf3 a6 12.0–0 Nbd5 13.Ne5 Nd7) 10...a5 (10...0–0 11.0–0 a6 12.Be5 Be5 13.Ne5 Nfd5) 11.d4 (11.0–0 0–0 12.Be5 Be5 13.Ne5 Nfd5) 11...0–0 12.Ba3 a4 (12...Nfd5 13.0–0 Nb4) 13.0–0 (13.Bd3 Qe7) 13...Qe7= (13...Nfd5).

6.c4 cb5 7.cd5 ed5 8.ab5 A) 8...Be7 9.Nf3 (9.Be2 0–0 10.Nf3 Nb6 11.0–0 Re8 12.d3 Be6 13.Nd4 Bd6) 9...0–0 (9...Nb6 10.Be2 0–0 11.0–0 Re8 12.Qc2 Bg4 13.Bd4 Bd6) 10.Be2 Nb6 11.0–0 Be6 (11...Re8 12.Qc2 Bg4 13.Rc1 Qd6) 12.Bd4 Qd6 13.Nc3 Rfc8; B) 8...Bc5 9.Nf3 Nb6 10.Be2 0–0 11.0–0 Re8 (11...Bd6 12.Bd4 Bf5 13.Nc3 Nfd7) 12.Qc2 Bd6 13.Rc1 (13.Bd4 Bg4) 13...Bg4; C) 8...Nb6 9.Nf3 Bd6 10.Be2 0–0 11.0–0 Re8 (11...Qe7 12.Bd4 Be6 13.Nc3 Rfc8) 12.Bd4 Bg4 (12...Be6 13.Nc3 Ne4) 13.Nc3 Bc7; D) 8...Nc5 9.Nf3 Bf5 10.Bf6 Qf6 11.Nc3 Be4 (11...Qd8 12.Be2 Be7 13.b6 a6) 12.Nd4 (12.d4 Nd7 13.Qb3 Nb6) 12...Qd8 13.b6 Qb6; E) 8...Bb4 9.Nf3 0–0 10.Be2 Nb6 11.0–0 Re8 (11...Bd6 12.Bd4 Be6 13.Nc3 Re8) 12.Qb3 (12.Bd4 Qd6 13.Qb3 Bf5) 12...Bd6 13.Bd4 Be6; F) 8...Bd6 9.Nf3 0–0 (9...Nb6 10.Be2 0–0 11.Bd4 Bf5 12.0–0 Qe7 13.Nc3 Nfd7) 10.Be2 Nb6 11.Bd4 Re8 12.0–0 Bg4 13.Nc3 Bc7= (13...Nfd7).

6.c4 cb5 7.cd5 ed5 8.Bb5= Be7 (8...a6 9.Be2 Bd6 10.Nf3 0–0 11.0–0 b6 (11...Nc5 12.Bd4 Ne6 13.Be5 Be5) 12.Qc2 (12.Ba3 Ba3 13.Na3 Ne4) 12...Bb7 (12...Ra7 13.Bd4 Rc7) 13.Qf5 (13.Bd4 Re8) 13...Re8= (13...Rc8); 8...Bd6 9.Bf6 Qf6 10.Nc3 Qg6 11.Qf3 a6 12.Bd7 Bd7 13.Nge2 Rc8; 8...Bc5 9.Bf6 Qf6 10.Nc3 d4 (10...0–0 11.Nd5 Qd6 12.Qb3 Nf6 13.Bc4 Rd8) 11.Ne4 Qe7 12.Nc5 Qc5 13.Rc1 Qg5+= (13...Qe7); 8...Bb4 9.Qb3 (9.Nf3 0–0 10.0–0 a6 11.Bd7 Bd7 12.Qb3 a5 13.Bf6 Qf6) 9...Qe7 (9...Bd6 10.Bf6 Qf6 11.Nc3 0–0 12.Qd5 Rd8 13.Rd1 Nc5) 10.Ne2 0–0 11.Nf4 a6 12.Be2 Rd8 (12...Qd6 13.Nc3 Rd8) 13.Nd5 Nd5) 9.Nf3 0–0 10.0–0 a6 (10...Nc5 11.Bf6 (11.Nc3 Bg4 12.Rc1 Rc8 13.h3 Be6) 11...Bf6 12.d4 Bg4 (12...Bf5 13.Nc3 Rc8) 13.Nbd2 a6) 11.Be2 Re8 12.d3 (12.Nc3 Nc5 (12...b6 13.d4 Nf8) 13.a5 (13.Qc2 Bg4) 13...Bf5= (13...b5); 12.Qc2 Nc5 13.Bd4 Ne6) 12...b6 (12...Nc5 13.Nbd2 (13.Be5 Bg4) 13...Bf5) 13.Qc2 (13.Nbd2 Nc5) 13...Bb7 (13...Ra7=) 14.Bd4 Rc8 15.Nc3 Nc5 16.Rab1 Qc7 (16...Rc6 17.Ne5 Rc8 18.Rfc1+=) 17.Qa2 (17.Qb2 Nfd7+=) 17...Ne6= 18.Be5 Qc6 (18...Qc5 19.Rfc1+=) 19.Rfc1 Qd7 (19...Nd7!?+=) 20.Rb6+/– Ng4 (20...Bc5!? 21.Rb7! Qb7 22.Bf6 gf6 23.Nd5 Be7+–) 21.d4+– Ne5? (better is 21...Rc6 22.Rcb1 Rc3 23.Rb7 Rc1 24.Bf1 Qc6+–) 22.Ne5 (22.de5?! d4 23.Nd4 Bc5 24.Rb7 Qb7+=) 22...Qc7 23.Qb1 Ba3 24.Rb7 Qb7 (24...Qa5 25.Bd3 g6 26.Nf7 Nd8 27.Nd8 Red8 28.Bg6 Rc3 29.Bh7 Kh8 30.Rc3 Qc3+–) 25.Qb7 Bc1 (25...Rc7 26.Qb1 Rec8 27.Ba6 Rc3 28.Rc3 Rc3 29.Qb7+–) 26.Qf7 Kh8 27.Ba6 Ra8 (27...Ng5 28.Qh5 Ra8 29.Bb7+–) 28.Bb5 (28.Bb5 Ng5 29.Qf5 Re5 30.Qe5+–) 1–0. Trkn – guest2644, ICC, 2004.

6.c4 cb5 7.cd5 Nd5 A) 8.Bb5 a6 9.Bc4 N7f6 (9...Nb4 10.Nf3 Nb6 11.Be2 Nd3 12.Bd3 Qd3 13.Ne5 Qd5) 10.Nf3 Bd6 11.0–0 (11.Be5 0–0 12.0–0 b6 13.d4 Bb7) 11...0–0 12.d3 Ng4 (12...Rb8 13.e4 b5) 13.Qb3 Nb6; B) 8.ab5 B1) 8...N7f6 9.Bd4 Bd6 10.Nc3 (10.Nf3 0–0 11.Nc3 a6 12.Be2 Qe7 13.Ne5 Nc3) 10...0–0 11.Qf3 a5 12.ba6 ba6 13.Bc4 Qc7; B2) 8...N7b6 9.Nf3 Nf6 (9...f6 10.d4 Bb4 11.Nbd2 a5 12.Bd3 a4 13.Ba3 Qe7) 10.d4 (10.Be2 Bd6 11.0–0 0–0 12.Be5 Be5 13.Ne5 Qd6) 10...Bb4 11.Bc3 Bd6 12.Bd3 0–0 13.e4 Bf4; B3) 8...N5f6 9.Nf3 Bb4 10.Be2 0–0 (10...Qe7 11.Qc2 0–0 12.Bd4 a6 13.ba6 e5) 11.0–0 a6 (11...Qe7 12.d4 Rd8 13.Qc2 Bd6) 12.d4 (12.Qc2 Re8 13.ba6 ba6) 12...Nd5 (12...Nb6 13.Ne5 Bd6) 13.ba6 (13.Qc2 Bd6) 13...ba6; B4) 8...a5 9.Nf3 N7f6 10.Nc3 Nc3 11.Bc3 b6 (11...Bd6 12.Qa4 0–0 13.e4 Bf4) 12.Bc4 (12.Ne5 Bb7 13.Nc6 Qd6) 12...Bd6 13.0–0 0–0= (13...Bb7); B5) 8...e5 9.Nc3= N7f6 10.Nd5 Qd5 11.Nf3 Bd6 12.b6 (12.Ra4 e4 13.Nh4 Be5) 12...a6 (12...a5 13.Rc1 a4) 13.Bc3 (13.Rc1 e4) 13...Qe6= (13...Bg4).

6.c4 Nb6 7.cd5 Nbd5 (worse is 7...Qd5 8.Bf6 gf6 9.a5+=) 8.Nf3 Bb4 9.Be2 0–0 10.0–0 cb5 11.ab5 Bd7 12.Ne5 a6 13.ba6 ba6 14.Ra6 Ra6 15.Ba6 Qa5 16.Nd7 Nd7 17.Bc4 Rc8 (17...Rb8!?+/–) 18.Bd5+– Qd5 19.Nc3 (better is 19.Bg7!? Kg7 20.Qg4 Kh8 21.Qb4+–) 19...Qg5 20.Ne4 Qg6 21.Ng3 Rc2 22.Bc3 Ba3?? (22...Bc3 23.dc3 Nf8 24.Qd4+/–) 23.Qa1?? (better is 23.e4 Rc3 24.dc3+–) 23...Bd6+= 24.Qa4 Nc5 25.Qa8 Bf8 26.Bb4 f5 (26...Qd3!?+=) 27.d4+/– Nd7 28.Bf8 Nf8 29.Re1 Qf7 30.Ne2 g5 31.Kf1 Kg7 32.Rb1 Kf6?? (32...Qh5 33.Ng3 Qh2 34.Rb7 Kg8 35.Qe8 Qg1 36.Kg1 Rc1 37.Kh2 Rh1 38.Kh1 h5 39.Qf7 Kh8 40.Qf8) 33.Qa4 (better is 33.Rb7 Nd7 34.Qa4+–) 33...Qc7+/– 34.Qa1 Kg6 (34...Qh2 35.d5 Kg6 36.Qh8 Qh1 37.Ng1+/–) 35.g3 (35.Qa8!? Qc8 36.Qa4+/–) 35...Qc4 Threatening mate: Qxe2 36.Re1 Ra2 37.Qc1 Rc2 38.Qd1 h5 39.h3 Nd7 40.Kg1 Nb6 41.Nc1 Nd5 42.Nd3 Kh6 43.Kh2?? (better is 43.e4 fe4 44.Re4+–) 43...Ra2 Black intends Nc3@aCd5c3 44.Ne5?? (better is 44.Qb1=) 44...Rf2–+ 45.Kg1 Qa2 46.Nd3 Rg2 47.Kf1 Rg3 48.Re2 (48.Nf2–+) 48...Ne3 0–1. hal1958 – froilo, playchess.de, 2003.

6.c4 Qc7 7.cd5 cd5 8.Nf3 e5 9.Be2 Bd6 10.h3 Nf8 11.d4 e4 12.Nfd2 Be6 13.Nc3 Rc8 14.Qb3 N8d7 15.0–0 0–0 16.Rfc1 Qa5 17.Ba3 Ba3 18.Qa3 Rc7? (better is 18...Ne8=) 19.Nb3+– Qc3 20.Rc3 Rc3 21.Qb2 Rc7 22.Rc1 Rc1 23.Qc1 Nb6 24.a5 Rc8 25.Qa3 (worse is 25.ab6 Rc1 26.Nc1 ab6+=) 25...Nc4 26.Qe7 Bd7 27.Qb4 b6 28.ab6 ab6 29.Nd2 Be6 30.g4 h6 31.Kg2 Ne8 32.Kg3 Nd2 33.Qd2 Nd6 34.Qb4 Nc4 35.h4 Bd7 36.g5 hg5 37.hg5 g6 38.Kf4 Be6 39.f3 ef3 40.Bf3 Re8 41.e4 de4 42.Be4 (42.Ke4?! Rd8+/–) 42...Rc8 (42...Na5 43.d5 Bd7 44.d6+–) 43.Bc6 (43.d5 Bh3 44.Bd3 Na5+–) 43...Na5 (43...Rd8 44.d5! Rd5 45.Bd5 Bd5 46.Qe7+–) 44.d5 Bf5 45.Ke5 Rb8 (45...Kg7+–) 46.Kf6 Nc6 (46...Nb3 47.Qb3 Rf8 48.Qc4+–) 47.bc6 (47.dc6 Re8 48.Qb3 Re6 49.Qe6 Be6+=) 47...Re8 48.Qb6 Kf8 (48...Bc8 49.Qb8 Bd7+–) 49.Qc7 Be6 50.Qh2 1–0. Melich,Jindrich – Vana,O, CZE League, 1998.

6.bc6 bc6 7.Nc3 Bd6 =+.

6.d4 a6 7.bc6 (7.Nd2 Bb4+=) 7...bc6+= 8.c4 (8.Nf3 Rb8 9.Ba3 Qa5 10.Nbd2 c5+=) 8...Ne4 (8...Rb8 9.Qc2+=) 9.c5 Qa5 (9...Rb8 10.Ra2+=) 10.Nd2 (10.Bc3 Nc3 11.Qd2 Be7+=) 10...Rb8 (better is 10...Nd2 11.Qd2 Qd2 12.Kd2 e5+=) 11.Qc2?? (better is 11.Rb1+=) 11...Qd2–+ 12.Qd2 Nd2 13.Ra2 (13.Bc3 Nf1 14.Kf1 Rb3–+) 13...Nf1 14.Kf1 a5 15.Ne2 Ba6 16.f3 (16.Bc1–+) 16…Bc4 (16...Bc4 17.Kf2 Ba2–+) 0–1. Roczniak,Jan – Kandora,J, corr Poland (year?).

6.d4 Bb4 7.c3 Ba5 8.Nf3 =.

6.d4 Bb4 7.c3 Bd6 8.c4 +=.

6.d4 Ne4 7.f3?? (better is 7.Bd3+=) 7...Qh4–+ 8.g3 Ng3! 9.Ne2 (9.hg3 Qg5 Double attack (9...Qh1 Pinning; 9...Qh1 Deflection; 9...Qg5 Decoy)) 9...Nh1 10.Kd2 Qh2 11.Nbc3 (11.bc6 Nb6 12.Kc1 Nc4 13.cb7 Bb7–+) 11...Bb4 (11...Nb6 12.Qe1 cb5 13.Nb5 Nc4 14.Kc1–+) 12.Ba3 (12.bc6 Nb6–+) 12...Ba3 13.Ra3 Nb6 14.Rb3 (14.Kc1 Nc4 15.Nb1 Qf2–+) 14...Nc4 15.Kc1 Ne3 (better is 15...Qf2 16.Bg2 Qg2 17.bc6 bc6 18.e4–+) 16.Qe1 Qf2 17.Qf2 Nf2 18.Nf4 (18.bc6 bc6 19.Ne4 Ne4 20.Re3–+) 18...Nf1 19.Rb1 h5 20.Kb2 Nd2 21.Rg1 h4 22.Rg2 h3 23.Rh2 g5 (better is 23...Nf3!? 24.Rf2 h2 25.Rf1–+) 24.Nfe2 Nf3 25.Rf2 h2 26.Ng3 h1Q (better is 26...Nd4 27.Nh1–+) 27.Nh1 Rh1 (better is 27...Nd4 28.Ng3–+) 28.Rf3 g4 29.Rg3 f5 30.Ne2 Kf7 0–1. Korepanova,Irina – Yuzhakov,Oleg (2325), Khanty Mansiysk Governor Cup, 2007.

6.d4 Be7 7.c4 cb5 (7...Ne4 8.Nc3=) 8.cb5 (8.ab5 dc4 9.Bc4 Nb6=) 8...0–0 (8...Ne4 9.Qc2+=) 9.Nf3= Re8 (9...Ne4 10.Bd3=) 10.Bd3 Nf8 (10...Bb4 11.Nbd2+=) 11.0–0+= a6 12.ba6 (12.Ba3 N8d7+=) 12...ba6 13.Nbd2 Bb4 (13...Rb8 14.Ba3+=) 14.Ne5 (14.Ba3 Ba3 15.Ra3 Qd6+=) 14...Bd2 (14...Qd6!?=) 15.Qd2+/– N6d7 (15...Ne4 16.Qe2+/–) 16.Nc6 White intends a5 (16.Rfc1 Ne5 17.de5 Qg5+/–) 16...Qb6 (16...Qg5!?+/–) 17.Rfc1+– Bb7 (better is 17...Nb8!? 18.Ne7! Re7 19.Rc8 Rea7+/–) 18.a5 Qc6 19.Rc6 Bc6 20.Qe2 (20.Ba3 Bb5+–) 20...Bb7 (20...Reb8+–) 21.e4 (21.Rc1 Nf6+–) 21...Rab8? (better is 21...de4!? 22.Be4 Be4 23.Qe4 Nf6+/–) 22.e5+– Bc6 (22...Ng6+–) 23.Ba6 Ng6 (23...Rb4 24.Qc2 Reb8 25.Ba3+–) 24.Bc1 f6 (24...Ra8 25.Bd3+–) 25.f4 (25.ef6 Nf6 26.Bd3 Nf8+–) 25...fe5 (25...Ra8 26.Bd3+–) 26.fe5 Rf8 (26...Ndf8 27.Bd3+–) 27.Bd3 (better is 27.Qc2 Nge5 28.de5 Ne5+–) 27...Nf4 (27...Rfc8 28.Bg6 hg6 29.Qg4+–) 28.Bf4 Rf4 29.Qh5 (29.Bh7!? Kh7 30.Qc2 Re4 31.Qc6 Nf8+–) 29...g6 (29...Nf8+–) 30.Bg6! Nf8 (30...hg6 31.Qg6) 31.Bc2 (better is 31.Bh7 Nh7 32.Qh6 Rd4 33.Qe6 Kg7 34.Qc6+–) 31...Rd4 (31...Rf7 32.Bd3+–) 32.Rf1 (better is 32.Qg5 Ng6 33.Bg6 hg6 34.Qg6 Kh8 35.Qh6 Kg8 36.Qe6 Kh7 37.Qc6+–) 32...Be8 33.Qg5 (33.Qf3 Bg6 34.a6 Bc2+–) 33...Bg6 34.h4 Kh8 (34...Rc4 35.Bd3 Rc3 36.Bg6 hg6 37.Qe7+–) 35.Qe7 (better is 35.Bg6 Ng6 36.h5+–) 35...h6 (35...Bf5 36.h5 h6+–) 36.Rf8 Rf8 37.Qf8 Kh7 38.Qe7 1–0. PawnPower (1645) – nitsche, internet, 2007.

6.Be2 e5 +=.

6.Nf3 a6 7.d4 Bb4 (7...ab5 8.ab5 Ra1 9.Ba1 cb5 10.Bd3+= (10.Bb5? Qa5 11.Nc3 Ne4–+)) 8.Nbd2 (8.c3 Be7=) 8...Ne4 (8...0–0 9.Bd3=) 9.c3 (9.bc6 bc6 10.c3 Nc3 (worse is 10...Bc3 11.Bc3 Nc3 12.Qc2+=) 11.Bc3 Bc3+=) 9...Nc3 10.Qc2 (10.Bc3 Bc3 11.bc6 bc6+=) 10...Qa5 (10...Ne4 11.bc6 bc6 12.Bd3–/+) 11.bc6+= bc6 12.Bd3 Nf6?? (12...c5 13.Nb3 Na4 14.Kf1 Qb6 15.Ra4 c4 16.Bc4 dc4 17.Qc4 a5–/+) 13.0–0+– c5 (13...Rb8 14.Nb3 Qb6 15.Bc3 Bc3 16.Qc3 Qb3 17.Qc6 Bd7 18.Qa6+–) 14.Rfc1 (14.dc5 Qc5 15.Nb3 Qc7+/–) 14...c4+/– 15.Bc4! (15.Bc3?! Bc3 16.Nb3 Qb4 17.Qc3 Qc3 18.Rc3 cd3+=) 15...Nce4 (15...dc4 16.Bc3) 16.Bb5! Bd7 (16...Qb5 17.ab5) 17.Bd7 Nd7 18.Ne4 de4 19.Qe4 0–0 (19...Qd5!? 20.Qd5 ed5 21.Ba3 Ba3 22.Ra3+/–) 20.d5 Nf6 (20...e5 21.Be5 Rae8 22.Qd4+–) 21.Bf6 gf6 22.de6 Bc3 (22...fe6 23.Rab1 Rab8 24.Qe6 Kh8 25.Nd4 Qa4 26.Ra1+–) 23.Rab1 Be5 (23...Kh8+–) 24.e7 Rfe8 25.Qc6 (25.Qc6 Bh2 26.Kh2+–) 1–0. Bertel,Michael (1765) – Recio,Luis, TE.2004.P.01714, 2004.

6.Nf3 a6 7.Be2 Bd6 +=.

6.Nf3 Be7 7.c4 cb5 8.ab5 a6 (8...0–0 9.d4=) 9.d4 dc4 10.Bc4 Nb6 11.Be2 Bb4 12.Bc3 Nbd5 (12...Bd6!?=) 13.Bb4+/– Nb4 14.ba6 ba6?? (better is 14...Na6 15.0–0 0–0+=) 15.Qa4+– Bd7 16.Qb4 Rb8 17.Qa3 Bb5 18.Ne5 Qd5 (18...Qc7+–) 19.Nc3 Qb7 20.Rb1 Qg2 (20...Nd7 21.Nb5 ab5 22.Bb5 Qb5 23.Rb5 Rb5+–) 21.Bf3 Qh3 (21...Qf3 22.Nf3 Rc8+–) 22.Bc6 Kd8 23.Nf7 Kc7 24.Qe7 Kb6 (24...Nd7 25.Qd6 Kb6 26.Bb5 Kb7 27.Qa6 Kc7 28.Qc6) 25.Na4 Kc6 26.Ne5 Kd5 27.Nc3 1–0. pcmvr (2840) – eddieteijeiro (2225), net–chess.com, 2009.

6.f4 Bc5 7.Nf3 =.

6.c4 Bb4

7.Ba3 Ba3 8.Ra3 A) 8...0–0 9.d4 e5 10.Nf3 Re8 11.cd5 Nd5 12.Nc3 Qa5 13.Qd2 (13.bc6 bc6) 13...Nb4; B) 8...Qa5 9.Nf3 e5 10.Be2 (10.Qc2 0–0 11.cd5 cd5 12.Qc3 Qc3 13.Nc3 e4) 10...c5 11.cd5 e4 12.Nh4 Nb6 13.Qc2 Nbd5; C) 8...e5 9.d4 c5 10.cd5 Nd5 (10...cd4 11.d6 Nb6 12.ed4 Qd6 13.de5 Qb4) 11.de5 Ne5 12.Nf3 Nf3 (12...Bg4 13.Be2 Qa5) 13.Qf3 Qa5.

7.Na3 A) 7...0–0 A1) 8.bc6 bc6 9.Rb1 (9.Nf3 Rb8 10.Be2 Bd6 11.Qc2 Qb6 12.Bf6 Nf6 13.0–0 Qb3) 9...Bd6 10.Nf3 (10.cd5 ed5 11.Nf3 Rb8 12.Nc2 Nc5 13.Bf6 Qf6) 10...Rb8 11.cd5 (11.Nc2 e5 12.d4 Qa5 13.Nd2 Re8) 11...ed5 12.Nc2 Nc5 13.Bf6 (13.Bd4 Rb1) 13...Qf6; A2) 8.Nf3 Bd6 (8...cb5 9.ab5 a6 10.Be2 ab5 11.Nb5 Ra1 12.Qa1 dc4 13.Bc4 b6; 8...a6 9.bc6 bc6 10.Be2 Rb8 11.0–0 Bd6 12.Qc2 e5 13.c5 Bc7; 8...Ne4 9.Be2 e5 10.0–0 Re8 11.bc6 bc6 12.Qc2 Nd6 13.d4 e4; 8...dc4 9.bc6 bc6 10.Nc4 c5 11.Be2 Bb7 12.0–0 Nb6 13.Nce5 Ne4) 9.bc6 (9.Be2 e5 10.cd5 cd5 11.0–0 Qa5 12.Nc2 Rd8 13.Bc3 Qc7) 9...bc6 10.cd5 ed5 11.Qc2 c5 (11...Nc5 12.Ng5 Re8 13.Bf6 Qf6) 12.Be2 a6 13.0–0 Rb8; B) 7...Ne4 8.Nf3 0–0 9.bc6 bc6 10.Be2 Qa5 11.Nc2 Bd6 12.cd5 cd5 13.Ncd4 Re8; C) 7...Nb6 C1) 8.cd5 ed5 (8...cd5 9.Nf3 0–0 10.Be2 Bd7 11.0–0 Ne4 12.Nb1 Ng5 13.Ne5 f6; 8...Nbd5 9.bc6 bc6 10.Rc1 Bb7 11.Nc2 Bd2 12.Qd2 Ne4 13.Qd4 Qa5) 9.Nc2 Bd6 10.bc6 bc6 11.Nd4 c5 12.Bb5 Bd7 13.Nf5 Bf8; C2) 8.bc6 bc6 9.Nf3 Ba6 10.Qc2 Rc8 11.Rb1 Qe7 12.Qb3 c5 13.Nb5 0–0; D) 7...e5 D1) 8.bc6 bc6 9.Nf3 (9.cd5 cd5 10.Nf3 Qe7 11.Nc2 Bd6 12.d4 e4 13.Nd2 a6) 9...e4 10.Nd4 Ne5 11.cd5 Qd5 12.Qc2 Rb8 (12...0–0) 13.Rb1 c5+= (13...0–0); D2) 8.cd5 cd5 9.Nf3 Bd6 (9...Qe7 10.Be2 0–0 11.0–0 a6 12.Nc2 Bd6 13.a5 e4) 10.Be2 Qe7 11.a5 0–0 12.0–0 Re8 13.d4 (13.d3 a6) 13...e4; D3) 8.Nc2 Bd6 9.cd5 cd5 10.Nf3 (10.Ba3 Nc5 11.d4 ed4 12.Nd4 Nfe4 13.Ngf3 Nc3) 10...0–0 (10...e4 11.Nfd4 Ne5 12.Be2 a6 13.0–0 Nc4) 11.Be2 e4 12.Nfd4 Ne5 13.f4 (13.0–0 Nfg4) 13...Nd3; D4) 8.Nf3 e4 9.bc6 (9.Nd4 cb5 10.cb5 Nc5 11.Be2 0–0 12.Nac2 Ba5 13.0–0 Qd6) 9...bc6 10.Nd4 Ne5 11.cd5 Qd5 12.Qc2 Rb8 13.Rb1 0–0+= (13...c5).

7.Qb3 A) 7...c5 A1) 8.Nf3 0–0 9.cd5 ed5 10.Nc3 Nb6 11.a5 Nc4 12.Bc4 dc4 13.Qc4 Be6; A2) 8.Nc3 Nb6 (8...dc4 9.Bc4 Ne5 10.Nf3 Nf3 11.gf3 0–0 12.Rg1 b6 13.Ne4 Ne8; 8...0–0 9.cd5 Nb6 10.Ba3 Nbd5 11.Nd5 Nd5 12.Bb4 Nb4 13.Nf3 b6) 9.cd5 ed5 10.d4 Be6 11.Nf3 Ba5 12.Be2 c4 13.Qc2 Qc8; A3) 8.cd5 ed5 9.Nc3 Qa5 10.Nf3 c4 11.Qc2 0–0 12.Be2 Re8 13.0–0 Nc5; B) 7...Qe7 B1) 8.cd5 ed5 (8...Nc5 9.Qc2 ed5 10.Ba3 Ba3 11.Ra3 0–0 12.bc6 bc6 13.d4 Ne6; 8...cd5 9.Ba3 Bd6 10.Bd6 Qd6 11.d4 0–0 12.Nf3 e5 13.Nc3 e4) 9.Nf3 c5 10.Bc3 Bc3 11.Nc3 d4 12.Ne2 de3 13.Qe3 Nd5; B2) 8.Nc3 Nc5 (8...0–0 9.Nf3 Rd8 10.Rb1 Nc5 11.Qc2 cb5 12.ab5 Nfe4 13.Be2 a6) 9.Qc2 e5 10.cd5 cd5 11.Nf3 e4 12.Nd4 Bg4 13.f3 ef3; B3) 8.Be2 e5 (8...Nc5 9.Qc2 e5 10.bc6 bc6 11.Nf3 e4 12.Ne5 Qd6 13.cd5 cd5) 9.Nf3 e4 10.Nd4 dc4 11.Bc4 Ne5 12.Na3 0–0 13.bc6 bc6; B4) 8.Nf3 0–0 (8...e5 9.bc6 bc6 10.cd5 Nd5 11.Qc2 Bc5 12.d4 Nb4 13.Qd2 ed4; 8...Nc5 9.Qc2 0–0 10.Ne5 cb5 11.ab5 Nfe4 12.Be2 Rd8 13.Bd4 dc4) 9.Nc3 Rd8 10.bc6 bc6 11.cd5 Nc5 12.d6 Qd6 13.Qc2 Ba6; C) 7...Bd6 C1) 8.Nf3 Nc5 (8...e5 9.d4 e4 10.Nfd2 Nf8 11.Nc3 Be6 12.Ba3 Ba3 13.Ra3 Rb8; 8...cb5 9.ab5 Nc5 10.Qc2 0–0 11.d4 Ncd7 12.c5 Bb8 13.Bd3 Re8; 8...a6 9.d4 c5 10.Bd3 cd4 11.Bd4 e5 12.c5 ed4 13.cd6 de3; 8...0–0 9.d4 c5 10.Ba3 Qa5 11.Qc3 Qc7 12.Nbd2 Re8 13.Rc1 b6) 9.Qc2 0–0 10.d4 Nce4 11.c5 Bc7 12.Bd3 Qe8 13.0–0 Bd7; C2) 8.d4 c5 (8...0–0 9.Nf3 c5 10.Ba3 Qa5 11.Qc3 Qc7 12.Bd3 dc4 13.Bc4 Nd5; 8...e5 9.Nd2 0–0 10.cd5 cd5 11.de5 Ne5 12.Ngf3 Nf3 13.Nf3 Ne4) 9.Nf3 0–0 10.Ba3 Qa5 11.Qc3 Qc7 12.Nbd2 Rd8 13.Bd3 cd4.

7.Qc2 A) 7...0–0 8.Nf3 (8.cd5 cd5 9.Nf3 Qe7 10.Be2 e5 11.0–0 a6 12.Rc1 ab5 13.ab5 Ra1; 8.bc6 bc6 9.Nf3 Ba6 10.Na3 Rb8 11.Be2 Qa5 12.0–0 Ne4 13.Rfd1 Rfd8) 8...cb5 (8...c5 9.Be2 Re8 10.0–0 e5 11.d3 d4 12.Ba3 Ba3 13.Ra3 a6; 8...Bd6 9.d4 c5 10.Ba3 Qe7 11.Bd3 cd4 12.Nd4 Ba3 13.Ra3 dc4; 8...a6 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Qe7 12.0–0 e5 13.d4 e4; 8...Re8 9.Be2 e5 10.cd5 cd5 11.0–0 a6 12.Rc1 ab5 13.ab5 Ra1; 8...Qe7 9.bc6 bc6 10.Nd4 Qd6 11.cd5 cd5 12.Ba3 a5 13.Bb4 ab4) 9.ab5 a6 10.Nc3 Nb6 11.cd5 Nbd5 12.Bd3 h6 13.0–0 Bd6; B) 7...Bd6 B1) 8.Nf3 0–0 (8...c5 9.Be2 0–0 10.0–0 dc4 11.Na3 Nb6 12.a5 Nbd5 13.Nc4 Be7) 9.d4 c5 10.cd5 ed5 11.Be2 c4 12.0–0 Re8 13.Nc3 a6; B2) 8.d4 c5 (8...e5 9.bc6 bc6 10.Nf3 e4 11.Ne5 Qc7 12.cd5 cd5 13.Qc7 Bc7; 8...0–0 9.c5 Bb8 10.Nf3 Qe7 11.Bd3 e5 12.de5 Ne5 13.Be5 Be5; 8...cb5 9.ab5 dc4 10.Bc4 Nb6 11.Be2 Nfd5 12.Nf3 Bb4 13.Nbd2 a5; 8...Qc7 9.Nf3 cb5 10.ab5 dc4 11.Qc4 Qc4 12.Bc4 Nb6 13.Bd3 a6) 9.Nf3 0–0 10.cd5 ed5 11.Be2 c4 12.0–0 Qa5 13.Ba3 Ba3; C) 7...Qe7 C1) 8.Nf3 0–0 9.bc6 bc6 10.Nd4 Qd6 11.cd5 cd5 12.Ba3 a5 13.Qc6 Qb8; C2) 8.Be2 e5 9.Nf3 0–0 10.cd5 cd5 11.0–0 a6 12.Nc3 Rd8 13.Rfc1 ab5; C3) 8.Nc3 e5 (8...0–0 9.cd5 cd5 10.Nf3 e5 11.Rc1 e4 12.Nd4 Bc5 13.Nce2 a6) 9.cd5 cd5 10.Rc1 0–0 11.Nf3 Nb6 12.Be2 Bg4 13.0–0 Rac8; C4) 8.cd5 cd5 9.Nc3 e5 10.Nf3 0–0 11.Rc1 e4 12.Nd4 Bc5 13.Nce2 Ba3; C5) 8.Bc3 e5 (8...Bd6 9.d4 e5 10.bc6 bc6 11.cd5 cd5 12.de5 Ne5 13.Nd2 0–0; 8...0–0 9.d4 e5 10.Nf3 Re8 11.de5 Bc3 12.Qc3 Ne4 13.Qd4 Qb4; 8...Bc3 9.Nc3 e5 10.cd5 cd5 11.Nf3 0–0 12.Rc1 a6 13.d4 e4) 9.Bb4 Qb4 10.Nf3 0–0 11.bc6 bc6 12.cd5 cd5 13.Nc3 a6; C6) 8.bc6 bc6 9.Nf3 0–0 10.Nd4 Qd6 11.cd5 cd5 12.Ba3 a5 13.Qc6 Qb8; D) 7...e5 8.bc6 bc6 9.cd5 cd5 10.Qc6 Rb8 11.Be5 Rb6 12.Qa8 Ne5 13.Bb5 Bd7.

7.Bc3 Bd6 A) 8.bc6 bc6 9.d4 Rb8 (9...Ba6 10.Nd2 0–0 11.Ngf3 c5 12.Rc1 Rc8 13.Be2 cd4) 10.Nf3 (10.c5 Bc7 11.Nf3 Ne4 12.Qc2 e5 13.Be2 Nc3) 10...Ba6 (10...0–0 11.c5 Bc7 12.Bd3 Qe7 13.0–0 e5) 11.Nbd2 c5 12.dc5 Nc5 13.Rc1 0–0; B) 8.d4 c5 (8...cb5 9.c5 b4 10.Bb4 Be7 11.Nd2 0–0 12.Rb1 a5 13.Bc3 b6; 8...dc4 9.bc6 bc6 10.Nd2 Nb6 11.Nc4 Nc4 12.Bc4 Nd5 13.Ne2 Rb8; 8...0–0 9.c5 Be7 10.Nf3 e5 11.Be2 ed4 12.ed4 Ne4 13.0–0 Re8; 8...e5 9.de5 Ne5 10.c5 Bc7 11.Nd2 0–0 12.Be2 Bf5 13.Ngf3 Nf3) 9.Nf3 0–0 10.cd5 (10.Be2 cd4 11.Qd4 e5 12.Qh4 dc4 13.Nbd2 Qe7) 10...Nd5 11.Bc4 Nc3 12.Nc3 Qa5 13.Qc2 cd4; C) 8.Nf3 C1) 8...0–0 9.d4 c5 10.cd5 Nd5 11.Bc4 Nc3 12.Nc3 Qa5 13.Rc1 (13.Qc2 cd4) 13...Rd8; C2) 8...c5 9.cd5 (9.Be2 0–0 10.d4 cd4 11.Qd4 e5 12.Qh4 e4 13.Nfd2 Be7) 9...ed5 10.Be2 0–0 11.a5 (11.0–0 a6 12.a5 ab5 13.Bb5 Ne4) 11...Re8 12.0–0 Qe7 13.Qc2 d4; C3) 8...e5 9.c5 Bc5 10.bc6 bc6 11.Ne5 Ne5 12.Be5 Qe7 (12...0–0 13.Qc2 Ne4) 13.Bf4 Bg4; C4) 8...cb5 9.ab5 e5 10.d4 e4 11.Nfd2 dc4 12.Nc4 Bc7 13.Nbd2 Qe7; C5) 8...dc4 9.bc6 bc6 10.Na3 Ba3 (10...0–0) 11.Ra3 Ba6 12.Be2 Nc5 (12...0–0) 13.Qc1 (13.Ne5 Nd3) 13...0–0= (13...Nd3).

7.Bc3 Be7 A) 8.d4 0–0 (8...cb5 9.ab5 0–0 10.c5 Ne4 11.Nf3 Re8 12.b6 a6 13.Bb5 Rb8; 8...Qc7 9.Nd2 dc4 10.Bc4 Nb6 11.Ba5 0–0 12.Ngf3 Bd7 13.0–0 Rac8; 8...Ne4 9.Nf3 0–0 10.Bd3 Nc3 11.Nc3 dc4 12.Bc4 Nb6 13.Qb3 cb5; 8...a6 9.bc6 bc6 10.Nf3 c5 11.dc5 Bb7 12.c6 Bc6 13.cd5 Bd5; 8...dc4 9.bc6 bc6 10.Bc4 c5 11.Nf3 Bb7 12.0–0 0–0 13.Qe2 Rc8) 9.Nf3 c5 10.cd5 Nd5 11.Qc2 cd4 12.Bd4 N7f6 13.Nbd2 a6; B) 8.cd5 ed5 (8...cd5 9.Nf3 0–0 10.Be2 Bd6 11.0–0 e5 12.Nh4 Nb8 13.Nf3 Qc7) 9.Nf3 0–0 10.Be2 Re8 11.0–0 Ne4 12.Qc2 c5 13.Bb2 Bf6; C) 8.Nf3 0–0 (8...c5 9.Be2 0–0 10.0–0 Bd6 11.d4 a6 12.Bd3 cd4 13.Bd4 e5) 9.d4 Rb8 10.Be2 Qc7 11.Nbd2 a6 12.Rc1 dc4 13.Nc4 ab5.

7.bc6 bc6 A) 8.Be2 A1) 8...0–0 9.cd5 (9.Nf3 Ba6 10.Na3 c5 11.0–0 Ba3 12.Ra3 Bc4 13.Bc4 dc4) 9...ed5 10.Nf3 Rb8 11.Nc3 Re8 12.0–0 c5 13.Rb1 Re6; A2) 8...e5 9.Nf3 Bd6 10.Ba3 (10.Qc2 Rb8 11.c5 Bc7 12.d4 e4 13.Nfd2 Ng8) 10...Ba3 11.Na3 e4 12.Nd4 c5 13.Nb3 Qe7; A3) 8...Rb8 9.cd5 ed5 10.Nf3 (10.Qc2 Qb6 11.Nc3 c5 12.Nf3 Ba6 13.Nb5 0–0) 10...Bd6 11.Qc2 Qb6 12.Bc3 0–0 (12...a5 13.0–0 0–0) 13.a5 Qc7; A4) 8...Ba6 9.cd5 Be2 10.Ne2 cd5 11.0–0 0–0 12.Nbc3 Qa5 (12...Qe7 13.Rc1 Rfc8) 13.Ba3 Rab8; A5) 8...Bd6 9.cd5 (9.Nc3 Rb8 10.Rb1 dc4 11.Bc4 Rb4 12.Be2 0–0 13.Qc2 e5) 9...cd5 10.Ba3 (10.Nc3 e5 11.Nb5 Bb4 12.Bc3 Bc3 13.Nd6 Ke7) 10...Bc7 (10...Ba3 11.Na3 Ne4 12.Nf3 0–0 13.0–0 Ndc5) 11.Nf3 (11.Nc3 Ne4 12.Rc1 Nc3 13.Rc3 Rb8) 11...e5 (11...Ne4 12.0–0 Rb8 13.Qc2 Rb7) 12.d4 (12.Nc3 a6 13.Rc1 Rb8) 12...e4 (12...Ba5 13.Nbd2 ed4) 13.Nfd2 Ba5; A6) 8...dc4 9.Na3 (9.Bc4 0–0 10.Nf3 c5 11.0–0 Bb7 12.d3 Nb6 13.Nfd2 Nc4) 9...Ba3 (9...Rb8 10.Nc4 Ba6 11.Rb1 0–0 12.Nf3 Bc4 13.Bc4 Ne4) 10.Ra3 Rb8 11.Bc3 Ba6 12.Nf3 Qe7 (12...0–0 13.0–0 Qe7) 13.Qa1 Nc5; B) 8.cd5 B1) 8...ed5 9.Nf3 0–0 10.Be2 Rb8 11.Nc3 Re8 12.0–0 c5 13.Qc2 (13.Rb1 Re6) 13...Qe7; B2) 8...cd5 9.Nf3 0–0 10.Be2 Re8 (10...Qe7) 11.0–0 e5 12.d4 e4 13.Ne5 Re6+= (13...Bd6); C) 8.Nf3 C1) 8...Ba6 9.cd5 Bf1 10.de6 Bg2 11.Rg1 (11.ed7 Qd7 12.Rg1 Qh3 13.Nh4 Bd5) 11...fe6 12.Rg2 0–0 13.Qc2 Nc5; C2) 8...0–0 9.cd5 cd5 10.Be2 (10.Bd4 Bd6 11.Bb5 a6 12.Bc6 Rb8 13.Nc3 e5) 10...Rb8 (10...Qe7 11.0–0 e5 12.Nc3 Rb8 13.Rb1 a6) 11.0–0 (11.Bd4 Qc7 12.Bc3 Bd6 13.Nd4 a6) 11...Re8 12.Ne5 (12.Ba3 e5 13.Bb4 Rb4) 12...Qc7 13.Nd7 (13.f4 Bd6) 13...Bd7; C3) 8...Rb8 9.Ne5 (9.cd5 cd5 10.Be2 0–0 11.0–0 Qe7 12.Ne5 Qd6 13.Nd7 Nd7) 9...Qc7 10.Nd7 Bd7 11.Bf6 gf6 12.Nc3 Bc3 (12...Qa5) 13.dc3 f5= (13...Rg8).

7.cd5 ed5 A) 8.Nf3 A1) 8...c5 9.Be2 0–0 10.0–0 a6 11.Bc3 (11.Nc3 Qe7 12.Qc2 Re8 13.Rfb1 b6) 11...Qa5 (11...Ba5 12.Na3 Ne4 13.Qc2 Nc3) 12.Bb4 (12.Qc2 Bc3 13.Nc3 b6) 12...Qb4 13.Nc3 b6; A2) 8...a6 9.Be2 ab5 (9...0–0 10.Nc3 ab5 11.ab5 Ra1 12.Qa1 c5 13.0–0 Re8) 10.ab5 Ra1 11.Ba1 0–0 12.Qc2 c5 13.0–0 Re8; A3) 8...Qe7 9.Be2 (9.Nd4 Nb8 10.Be2 0–0 11.0–0 a5 12.Bd3 c5 13.Nf5 Bf5) 9...0–0 10.0–0 a6 11.Qc2 c5 12.Bc3 a5 13.Rc1 (13.d3 Re8) 13...Re8; A4) 8...Bd6 9.Be2 0–0 10.0–0 Re8 11.Qc2 c5 12.Rc1 b6 (12...a6 13.Nc3 Qa5) 13.d4 c4; A5) 8...Qa5 9.Ne5 Ne5 10.Be5 Bf5 11.Bf6 gf6 12.Qc1 0–0 13.Qb2 Kg7; A6) 8...0–0 9.Be2 Re8 10.0–0 a6 (10...c5 11.Nc3 Qe7 12.Qc2 b6 13.Rfc1 a6) 11.Nc3 Qe7 (11...ab5 12.ab5 Ra1 13.Qa1 Qe7) 12.bc6 bc6 13.d4 Rb8; B) 8.Be2 B1) 8...c5 9.Nf3 0–0 10.0–0 a6 (10...Re8 11.Qc2 b6 12.Bc3 a5 13.ba6 Ba6) 11.Bc3 Qa5 (11...a5 12.Qc2 Re8 13.d3 Qe7) 12.Qc2 (12.Bb4 Qb4 13.Nc3 b6) 12...Re8 (12...b6 13.Bf6 Nf6) 13.Bb4 Qb4; B2) 8...Qe7 9.Nf3 0–0 10.0–0 a6 (10...Re8 11.Qc2 c5 12.a5 a6 13.b6 Nb8) 11.Qc2 (11.bc6 bc6 12.d4 Rb8 13.Qc2 c5) 11...c5 12.Bc3 a5 13.Bb2 Re8; B3) 8...Nb6 9.Nf3 0–0 10.0–0 Bg4 (10...Be6 11.a5 Nc4 12.Qa4 Be7 13.Bc4 dc4) 11.a5 (11.d3 Nbd7 12.bc6 bc6 13.Nd4 Be2) 11...Nc4 12.Bc4 dc4 13.bc6 (13.a6 cb5) 13...bc6; B4) 8...Bd6 9.Nf3 0–0 10.0–0 Re8 11.Qc2 c5 12.Rc1 (12.Nc3 Ne5 13.Ne5 Be5) 12...Qa5 (12...a6 13.d4 c4) 13.d4 c4; B5) 8...Qb6 9.Bc3 (9.Nf3 c5 10.Bc3 Ba5 11.0–0 0–0 12.d4 c4 13.Qd2 Ne4) 9...Ba5 (9...Bc3 10.Nc3 c5 11.a5 Qe6 12.d4 c4 13.Nh3 Qd6) 10.Nf3 c5 11.0–0 (11.Ba5 Qa5 12.0–0 0–0 13.Qc2 Re8) 11...0–0 12.d4 c4 13.Qe1 (13.Qd2 Ne4) 13...Bc3; B6) 8...a6 9.Nf3 0–0 10.Nc3 ab5 11.ab5 Ra1 12.Qa1 Re8 13.0–0 c5; B7) 8...0–0 9.Nf3 c5 (9...Re8 10.0–0 c5 11.Bc3 Qa5 12.Qc2 Bc3 13.Nc3 a6) 10.0–0 a6 (10...Re8 11.Bc3 Bc3 12.Nc3 a6 13.d4 c4) 11.Bc3 (11.Nc3 ab5 12.Bb5 Qe7 13.Qc2 Rd8) 11...Qa5 (11...a5 12.Qc2 Re8 13.d3 Qe7) 12.Bb4 Qb4 13.Nc3 b6.

7.Nf3 0–0 8.Ba3 Qa5 (8...Qe7 9.Bb4 Qb4 10.bc6 bc6 11.cd5 ed5 12.Nc3 Qa5 13.Rb1 Rb8; 8...Ba3 9.Ra3 e5 10.d4 Re8 11.cd5 Nd5 12.Bc4 e4 13.Nfd2 Qg5) 9.Bb4 Qb4 10.Nc3 dc4 11.Rb1 Qc5 12.Qe2 cb5 13.Rb5 Qe7.

7.Nf3 0–0 8.Na3 Bd6 (8...c5 9.Be2 Re8 10.cd5 e5 11.Nc4 e4 12.Ng5 Nd5 13.Nd6 Qg5; 8...cb5 9.ab5 dc4 10.Nc4 Nd5 11.Be2 N7f6 12.0–0 a6 13.Nfe5 Bd7; 8...Ne4 9.Be2 e5 10.0–0 Re8 11.bc6 bc6 12.Nc2 Ba5 13.cd5 cd5; 8...dc4 9.bc6 bc6 10.Nc4 c5 11.Be2 Bb7 12.0–0 Nb6 13.Nce5 Ne4; 8...Qa5 9.Be2 Ne4 10.Nc2 Bd6 11.cd5 cd5 12.0–0 Nb6 13.Ncd4 Nc4) 9.bc6 (9.Be2 e5 10.cd5 cd5 11.0–0 a6 12.Qc2 e4 13.Nd4 Nc5) 9...bc6 10.cd5 ed5 11.Qc2 c5 12.Be2 a6 13.0–0 Rb8.

7.Nf3 0–0 8.Qc2 A) 8...cb5 9.ab5 a6 10.Nc3 (10.cd5 Nd5 11.Bd3 f5 12.0–0 Bd6 13.Rc1 N7b6) 10...Nb6 11.cd5 Nbd5 12.Bd3 h6 13.0–0 Bd6; B) 8...Bd6 9.d4 c5 10.cd5 (10.Ba3 Qa5 11.Nbd2 b6 12.Bb2 Ne4 13.Bd3 Ndf6) 10...ed5 11.Be2 c4 12.0–0 a6 13.Nc3 Re8; C) 8...a6 9.bc6 (9.cd5 cd5 10.Bd4 b6 11.Be2 Re8 12.0–0 e5 13.Bc3 Bd6) 9...bc6 10.Be2 Rb8 11.0–0 Re8 12.d4 Qe7 13.Nc3 (13.Rc1 c5) 13...c5; D) 8...Re8 9.Be2 cb5 (9...e5 10.cd5 cd5 11.0–0 a6 12.Rc1 ab5 13.ab5 Ra1) 10.ab5 e5 (10...dc4 11.0–0 Nb6 12.Rc1 Bd7 13.Bc4 Nc4) 11.Qb3 (11.0–0 e4 12.Nd4 dc4 13.Qc4 Bd6) 11...Qe7 12.cd5 (12.0–0 e4 13.Nd4 dc4) 12...Qd6 13.0–0 Nd5; E) 8...Qe7 9.bc6 (9.Be2 e5 10.cd5 cd5 11.Nc3 e4 12.Nd4 Bc5 13.Nd1 Ne5) 9...bc6 10.Nd4 Qc5 11.cd5 cd5 12.Ba3 (12.f4 Rb8 13.Nc3 Bb7) 12...Ba3 13.Na3 a6; F) 8...c5 9.Be2 (9.Bd3 dc4 10.Bc4 b6 11.0–0 Bb7 12.Ne1 a6 13.Nd3 ab5) 9...Re8 (9...dc4 10.0–0 b6 11.Na3 Ba3 12.Ra3 a6 13.Bc4 Bb7) 10.cd5 (10.0–0 dc4 11.Bc4 b6 12.d3 a6 13.Nc3 Bb7) 10...ed5 11.0–0 b6 12.Nc3 Qe7 13.Ng5 (13.Rfc1 a6) 13...Qd6= (13...Bb7).

7.Nf3 0–0 8.Bc3 A) 8...Be7 9.d4 Ne4 (9...c5 10.cd5 Nd5 11.Qc2 Nc3 12.Nc3 cd4 13.Nd4 Nf6) 10.Bd3 Nc3 11.Nc3 dc4 12.Bc4 Nb6 13.Qb3 (13.Qd3 cb5) 13...Nc4; B) 8...Bc3 9.Nc3 cb5 (9...e5 10.cd5 Nd5 11.bc6 bc6 12.Rb1 Nc3 13.dc3 Qf6) 10.ab5 dc4 11.Bc4 Qc7 12.Qe2 (12.Be2 e5 13.Rc1 a5) 12...e5 13.0–0 (13.Rc1 Nb6) 13...e4; C) 8...Bd6 9.d4 c5 10.a5 (10.Ra2 cd4 11.Qd4 e5 12.Qh4 Be7 13.Be5 Ne4) 10...Qe7 (10...cd4 11.Qd4 e5 12.Qd1 e4 13.Ng1 Qc7) 11.Be2 cd4 12.Qd4 e5 13.Qh4 dc4.

7.Nf3 0–0 8.Nc3 A) 8...Nb6 9.bc6 bc6 10.cd5 ed5 (10...cd5 11.Rb1 Bd7 12.Nb5 a5 13.Bd3 Ne4) 11.Qc2 (11.a5 Nbd7 12.Nd4 Nb8 13.Qa4 c5) 11...c5 12.Na2 (12.Be2 Rb8 13.0–0 Bg4) 12...Ba5 13.Bb5 Qd6; B) 8...a6 9.cd5 (9.bc6 bc6 10.Nd4 Bc5 11.Nb3 Rb8 12.Nc5 Rb2 13.Nd7 Qd7) 9...cd5 10.Rc1 Qa5 (10...Qe7 11.Be2 ab5 12.Bb5 e5 13.0–0 Bd6) 11.Na2 Bd6 12.Bc3 Qd8 13.ba6 ba6; C) 8...Re8 9.Rc1 (9.Be2 dc4 10.bc6 bc6 11.Bc4 Nb6 12.Qb3 Nc4 13.Qc4 c5) 9...e5 10.cd5 cd5 11.Qb3 Bc3 12.Qc3 d4 13.Qb3 (13.Qc7 Qe7) 13...Nb6; D) 8...Rb8 9.cd5 ed5 10.Be2 c5 11.Qb3 d4 12.ed4 Re8 13.Kf1 Nb6; E) 8...Qa5 9.Be2 e5 10.0–0 dc4 11.Qc2 Re8 12.Bc4 Nb6 13.Be2 Bg4; F) 8...Qe7 9.Be2 e5 10.cd5 cd5 11.0–0 e4 12.Nd4 Rd8 13.a5 Ne5; G) 8...c5 9.cd5 ed5 10.Be2 Nb6 11.Rc1 Nc4 (11...c4 12.0–0 a6 13.d3 ab5) 12.Ba1 Nb6 (12...Bc3 13.Bc3 Ne4) 13.Na2 a5.

7.Nf3 0–0 8.cd5 cd5 (8...ed5 9.Be2 Re8 10.0–0 a6 11.Qc2 c5 12.Nc3 b6 13.ba6 Ba6; 8...Nd5 9.bc6 bc6 10.Qc2 c5 11.Nc3 Rb8 12.Nd5 ed5 13.Bd3 Nf6) 9.Be2 Re8 10.Nc3 e5 11.Qb3 Qa5 12.Nd5 Nd5 13.Qd5 Nf6.

7.Nf3 0–0 8.Be2 Qc7 (8...dc4 9.bc6 bc6 A) 10.Qc2 Ba6 (10...c5 11.0–0 Bb7 12.Qc4 Rb8 13.Rc1 Re8) 11.0–0 (11.Na3 c3 12.dc3 Be2 13.Qe2 Bd6) 11...Rb8 12.Bc4 Bc4 13.Qc4 Bd6; B) 10.Bc4 c5 11.0–0 Bb7 12.d3 Nb6 13.Nfd2 a5; C) 10.Na3= Ba3 11.Ba3 c5 12.Bc4 (12.Rb1 Ba6 13.Qc2 Qa5) 12...Bb7 (12...e5 13.Rc1 e4) 13.0–0 Bf3= (13...Rb8)) 9.0–0 (9.cd5 cd5 A) 10.0–0 e5 11.Ba3 Ba3 12.Ra3 (12.Na3 e4 13.Nd4 a6) 12...e4 (12...d4 13.ed4 e4) 13.Nd4 Qd6; B) 10.Ba3 Ba3 (10...Qd6 11.Bb4 Qb4 12.0–0 a6 13.d4 b6) 11.Ra3 e5= 12.d4 e4 13.Nfd2 a6; 9.Qb3 Bd6 10.cd5 cd5 11.0–0 (11.d4 Nb6 12.Nbd2 a5 13.Ba3 Qe7) 11...e5 12.Rc1 Nc5 13.Qd1 e4) 9...e5 (9...dc4 10.Qc2 cb5 11.ab5 Nb6 12.Rc1 Bd7 13.Bc4 Rfc8) 10.Nc3 (10.cd5 cd5 11.Ba3 Ba3 12.Ra3 e4= 13.Nd4 Qd6= (13...Qa5)) 10...e4+= (10...dc4 11.Qc2 (11.Bc4 e4 12.Ng5 Bc3 13.Bc3 h6) 11...Rd8 12.Ne4 cb5 13.ab5 Ne4) 11.Nd4 Ne5 (11...c5 12.Nf5 (12.Nc2 dc4 13.Bc4 Rd8) 12...Ne5 13.Ng3 Nc4+= (13...dc4 14.Nge4 Ne4 15.Ne4+=); 11...dc4 12.bc6 bc6 13.Qc2 Bd6) 12.cd5= cd5 (12...Bc3 13.Bc3 Nd5 14.bc6 Nc3 15.dc3 bc6 16.Qc2+=) 13.Na2 (13.Rc1 Qd6=) 13...Bd6 14.Rc1 (14.h3 Be6=) 14...Qe7 (14...Nc4 15.Bc4 dc4 16.f4+=) 15.Qb3 (15.f4 Nc4 16.Bc4 dc4 17.Rc4 Bg4+=) 15...Bd7 (15...Be6 16.Nc3=) 16.Nc3 (16.f4 ef3 17.Nf3 Rac8=) 16...Be6 17.Ne6 (17.Rfd1 Rac8=) 17...Qe6 18.Ba3 (18.Rfd1 Qf5=) 18...Rfd8 19.Bd6 Rd6 (19...Qd6 20.Qc2+=) 20.Rc2 (20.f4 Nc4 21.f5 A) 21...Nd2? 22.Qd1 (22.fe6 Nb3 23.ef7 Kf7 24.Ne4 de4 25.Bc4 Kg6 26.Bb3 Rd3–/+) 22...Nf3 23.Rf3+–; B) 21...Qe5 22.Bc4 dc4 23.Qc4 Rd2=) 20...Nfg4 (20...Qd7 21.f4 ef3 22.Bf3+=) 21.f4 Qh6?? (better is 21...ef3 22.Bf3 Nf3 23.Rf3 Re8=) 22.h3+– Rg6 (22...Nf3 23.Bf3 ef3 24.hg4 fg2 25.Kg2 Qg6+–) 23.Nd5 Qh4 24.fe5 Ne5 25.Nf4 Rf6 (25...Rg5 26.Qc3 h6 27.Qd4 Nf3 28.Bf3 ef3 29.Rf3+–) 26.Qc3 Re8 (26...Nd7 27.Qc7 Nf8 28.Qb7+–) 27.d4 (better is 27.Qe5! Rd8+– (27...Re5?? 28.Rc8 Re8 29.Re8)) 27...Nd7 (27...Ng6 28.Ng6 hg6 29.Qc7+–) 28.Qe1 (28.Qc7 Nb6 29.a5 Qg3 30.ab6 Qe3 31.Kh1 Qd4+–) 28...Qg5 (28...Qe1 29.Re1 Rd6+–) 29.Nh5 (better is 29.Rc7 Nf8 30.Rb7+–) 29...Qe3+/– 30.Kh1 Rf1 31.Qf1 Qd4 32.Qd1 (32.Rc7!? Ne5+–) 32...Qd1+/– 33.Bd1 f5? (better is 33...Nb6+/–) 34.Rc7+– Rd8 35.Bb3 (35.Rb7 Nc5 36.Rg7 Kf8+–) 35...Kf8 (35...Kh8+–) 36.Rb7 g6 37.Nf4 Nf6 (37...Ke7+–) 38.Ne6 (38.Ne6 Ke8 39.Nd8 Kd8 40.Ra7+–) 1–0. Plock,Joerg – Materka, 1991.

7.Nf3 0–0 8.Ne5 A) 8...Ne5 9.Be5 Ne4 10.bc6 (10.Qf3 Qa5 11.Ra2 f6 12.Bg3 e5 13.bc6 bc6) 10...bc6 11.cd5 ed5 12.Qc2 Qh4 (12...Qg5 13.Qb2 c5) 13.g3 Qh5; B) 8...Bd6 9.f4 Ne4 10.Qf3 Ne5 11.fe5 Bb4 12.Ba3 Ba3 13.Na3 f6; C) 8...cb5 9.ab5 Ne5 10.Be5 Nd7 11.Bc3 Be7 12.cd5 ed5 13.Qc2 Nc5; D) 8...c5 9.Nd7 Nd7 10.cd5 ed5 11.Qf3 d4 12.ed4 Re8 13.Be2 Nf6; E) 8...Ne4 9.bc6 Ne5 10.Be5 bc6 11.cd5 ed5 12.Qc2 Qh4 13.g3 Qh5; F) 8...dc4 9.Bc4 Bd6 10.d4 Bb4 (10...Qc7) 11.Nc3 Ne5 12.de5 Nd7 (12...Qa5) 13.f4 (13.Qh5 g6) 13...cb5+= (13...Nb6).

7.Nf3 Qa5 A) 8.Bb4 Qb4 9.bc6 bc6 10.cd5 ed5 (10...Nd5 11.Qc2 Rb8 12.Na3 N7b6 13.Nc4 Nc4) 11.Nc3 0–0 (11...d4 12.ed4 Qd4 13.Nf3 Qc5) 12.Rb1 Qa5 13.Nf3 Rb8; B) 8.Nf3 B1) 8...e5 9.Bb4 Qb4 10.bc6 bc6 11.cd5 cd5 12.Nc3 a6 (12...0–0 13.Rb1 Qc5) 13.Rb1 Qa5; B2) 8...0–0 9.Bb4 Qb4 10.Nc3 (10.bc6 bc6 11.cd5 ed5 12.Nc3 Qa5 13.Be2 Ba6) 10...dc4 11.Rb1 Qc5 12.Qe2 cb5 13.Rb5 Qe7; C) 8.bc6 bc6 9.Bb4 Qb4 10.cd5 Nd5 11.Nf3 (11.Qc1 Rb8 12.Nc3 Nc3 13.dc3 Qa5) 11...Rb8 12.Na3 0–0 13.Qc2 Bb7= (13...c5).

7.Nf3 Ba5 A) 8.bc6 bc6 9.cd5 (9.Nf3 Ba6 10.cd5 Bf1 11.de6 Bg2 12.Rg1 Bf3 13.ed7 Qd7) 9...ed5 (9...cd5 10.Nc3 Rb8 11.Nb5 Ne4 12.Nf3 a6 13.Nd6 Nd6) 10.Nf3 (10.Qc2 c5 11.Bb5 Ne4 12.Nh3 a6 13.Bc6 Qf6) 10...Rb8 11.Qc2 c5 12.Bb5 a6 13.Bc6 Bb4; B) 8.cd5 B1) 8...Nd5 9.bc6 bc6 10.Nf3 Qf6 11.Ra2 e5 12.Qc2 Rb8 13.Nc3 (13.Rb2 Nb4) 13...Nc3; B2) 8...ed5 9.bc6 (9.Nf3 c5 10.Be2 0–0 11.0–0 Re8 12.Qc2 b6 13.d4 Ne4) 9...bc6 10.Qc2 c5 (10...Qc7 11.Nc3 c5 12.Nb5 Qb6 13.Rb1 Rb8) 11.Bb5 Ne4 12.Nh3 0–0 (12...Rb8 13.Nf4 a6) 13.0–0 Qf6; B3) 8...cd5 9.Nc3 Ne4 (9...Bc3 10.dc3 Qc7 11.Rc1 Ne5 12.Qd4 Ng6 13.Qb4 e5) 10.Rc1 Nc3 11.dc3 Nf6 12.Nf3 a6 13.ba6 ba6; C) 8.Nc3 dc4 (8...c5 9.cd5 ed5 10.Nf3 Ne4 11.Qc2 Bc3 12.dc3 Qa5 13.Nd2 Qc3) 9.bc6 Nb6 10.Nf3 bc6 11.Qc2 Bd7 12.Ne5 Bc3 13.dc3 Qc7; D) 8.Nf3 D1) 8...c5 9.cd5 Nd5 10.Qc2 (10.Bb2 0–0 11.Be2 Re8 12.Nc3 Nc3 13.dc3 e5) 10...Nb4 (10...b6 11.Bd3 Bb7 12.0–0 Rc8 13.Be2 0–0) 11.Bb4 Bb4 12.Bd3 Nf6 (12...a6 13.0–0 ab5) 13.0–0 (13.Nc3 Qe7) 13...0–0; D2) 8...Ne4 9.bc6 (9.Qc2 Qf6 10.Bb2 Qg6 11.Nc3 Bc3 12.Bc3 dc4 13.bc6 bc6) 9...bc6 10.Be2 (10.cd5 cd5 11.Ra2 Rb8 12.Be2 Nb6 13.Bb5 Bd7) 10...Qf6 11.Ra2 Ba6 12.Rc2 (12.0–0 Bc4 13.Bc4 dc4) 12...Rb8 (12...Nb6 13.cd5 Be2) 13.0–0 c5; D3) 8...e5 9.Nc3 Ne4 10.Rc1 Nc3 11.dc3 e4 12.Nd4 Ne5 13.Qc2 Bc7= (13...Qg5).

7.Nf3 Qe7 A) 8.bc6 bc6 9.Bb4 Qb4 10.cd5 Nd5 11.Qc1 (11.Qc2 Rb8 12.Na3 Qc5 13.Nc4 Ba6) 11...Rb8 12.Nc3 (12.Nf3 0–0 13.Qc2 e5) 12...Nc3 13.dc3 Qa5; B) 8.Bb4 Qb4 9.bc6 bc6 10.cd5 Nd5 11.Qc1 Rb8 12.Nc3 (12.Nf3 0–0 13.Nc3 Qa5) 12...Nc3 13.dc3 Qa5.

6.Nf3 c5

7.a5 Bd6 (7...a6 8.b6 Bd6 9.Be2 e5 10.0–0 e4 11.Ne1 0–0 12.d4 Qe7 13.Nd2 c4 14.Qc1 Nb8) A) 8.d3 Bc7 (8...b6 9.c4 ba5 10.Bc3 Bc7 11.Qd2 dc4 12.dc4 Ne4 13.Qc2 Nc3 14.Nc3 a6; 8...0–0 9.Be2 Bc7 10.Qd2 e5 11.0–0 e4 12.Ng5 Qe7 13.de4 de4 14.Rd1 h6; 8...a6 9.b6 Qe7 10.Be2 e5 11.0–0 0–0 12.Nbd2 Rd8 13.c4 e4 14.Ne1 Be5; 8...e5 9.Be2 0–0 10.0–0 Qc7 11.Nfd2 e4 12.h3 Be5 13.Be5 Qe5 14.c3 Rd8; 8...Qe7 9.Be2 e5 10.0–0 0–0 11.Nbd2 e4 12.Nh4 Ne5 13.de4 Ne4 14.Ne4 de4) 9.Qd2 0–0 10.Be2 e5 11.0–0 Qe7 12.Nc3 e4 13.Ne1 Re8 14.Ra4 Qe5; B) 8.Be2 Bc7 (8...e5 9.0–0 0–0 10.d3 Qc7 11.Nfd2 e4 12.h3 Bh2 13.Kh1 Be5 14.Nc3 ed3; 8...0–0 9.d3 Bc7 10.Qd2 e5 11.0–0 Qe7 12.Nc3 e4 13.Ne1 Re8 14.Ra4 Qe5) 9.Bc3 Ne4 10.a6 ba6 11.ba6 0–0 12.0–0 Rb8 13.Ra2 Rb6 14.Bb2 Nb8.

7.c4 Bd6= A) 8.d4 0–0 (8...cd4 9.Bd4 0–0 10.cd5 Nd5 11.Bc4 N5f6 12.Bb2 Qa5 13.Nbd2 Rd8 14.0–0 Nc5) 9.cd5 ed5 10.dc5 Nc5 11.Be2 Re8 12.0–0 Bg4 13.Nc3 Rc8 14.Rc1 Qc7; B) 8.d3 0–0 (8...e5 9.cd5 Nd5 10.Be2 Qa5 11.Qd2 Qc7 12.Nc3 N7f6 13.Nd5 Nd5 14.0–0 0–0; 8...a6 9.Be2 e5 10.Nbd2 d4 11.0–0 0–0 12.Ng5 ab5 13.ab5 Ra1 14.Ba1 Nb6; 8...Qa5 9.Bc3 Qc7 10.cd5 ed5 11.a5 0–0 12.Be2 Re8 13.0–0 Ne5 14.Nbd2 Nf3; 8...Qe7 9.Be2 dc4 10.dc4 e5 11.Nc3 Bc7 12.Qc2 0–0 13.0–0 e4 14.Nd2 Re8; 8...Qc7 9.cd5 ed5 10.Be2 0–0 11.a5 b6 12.a6 Ne5 13.Ne5 Be5 14.d4 cd4) 9.cd5 ed5 10.Be2 Re8 11.0–0 a6 12.Nc3 Ne5 13.ba6 ba6 14.d4 cd4; C) 8.cd5 ed5 9.Be2 0–0 10.0–0 Re8 11.Nc3 Ne5 12.d4 Nf3 13.Bf3 c4 14.Ba3 Bf5; D) 8.Nc3 0–0 9.cd5 ed5 10.Be2 Re8 11.0–0 Ne5 12.a5 Nf3 13.Bf3 Be5 14.Qc2 Qd6; E) 8.Be2 0–0 (8...e5 9.cd5 Nd5 10.Nc3 N5f6 11.Qc2 0–0 12.0–0 Re8 13.d3 a6 14.ba6 ba6; 8...a6 9.Nc3 dc4 10.Bc4 0–0 11.0–0 e5 12.d3 Nb6 13.Bb3 Bg4 14.a5 Nbd7; 8...Qe7 9.0–0 e5 10.d4 cd4 11.ed4 e4 12.Nfd2 0–0 13.c5 Bf4 14.Ba3 Nb8) 9.0–0 e5 10.d3 dc4 11.dc4 Qc7 12.Nfd2 e4 13.g3 Re8 14.Nc3 Nf8.

7.Bd3 Bd6 A) 8.Be2 e5 (8...0–0 9.0–0 e5 10.Nh4 Bc7 11.d4 cd4 12.ed4 e4 13.Re1 Re8 14.Nd2 Nb8; 8...a6 9.0–0 0–0 10.c4 e5 11.d3 ab5 12.ab5 Ra1 13.Ba1 dc4 14.dc4 Qc7; 8...Qc7 9.c4 e5 10.cd5 Nd5 11.Nc3 Nc3 12.Bc3 0–0 13.Qc2 Nf6 14.a5 Bg4; 8...Qe7 9.0–0 e5 10.a5 0–0 11.d4 cd4 12.ed4 e4 13.Nfd2 e3 14.fe3 Qe3; 8...Qa5 9.c4 0–0 10.0–0 e5 11.Nh4 Qc7 12.Nf5 Re8 13.a5 Qb8 14.d3 Bc7) 9.0–0 0–0 10.Nh4 Bc7 11.d4 cd4 12.ed4 e4 13.Ba3 Re8 14.Re1 Nb6; B) 8.Nc3 e5 (8...0–0 9.0–0 e5 10.Bf5 e4 11.Ne1 Ne5 12.Bc8 Qc8 13.d3 Qe6 14.h3 Rfd8; 8...Qa5 9.0–0 0–0 10.Re1 e5 11.Nh4 Nb6 12.Nf5 Bf5 13.Bf5 Nc4 14.Ra2 e4) 9.Nh4 c4 10.Bf5 g6 11.Bd7 Bd7 12.Nf3 0–0 13.0–0 Bg4 14.h3 Bf5; C) 8.a5 e5 (8...Bc7 9.Bc3 Ne4 10.Be4 de4 11.Ng1 Qg5 12.g3 0–0 13.Ra4 Qg6 14.d3 Nf6) 9.Be2 Bc7 10.0–0 e4 11.Ng5 Ba5 12.d3 h6 13.Nh3 0–0 14.c4 ed3; D) 8.0–0 e5 (8...0–0 9.Be2 e5 10.Nh4 Bc7 11.Nf5 Re8 12.Ng3 a6 13.Nc3 e4 14.ba6 ba6) 9.Nh4 0–0 10.Nf5 Bc7 11.Be2 Re8 12.Ng3 a6 13.Nc3 c4 14.d4 e4.

7.d4 b6 8.Nc3 Bb7 (8...c4 9.Be2 Bb4 10.0–0 0–0 11.Ne5 Bb7 12.f4 a6 13.Bf3 Qc8 14.Na2 Be7; 8...a6 9.dc5 Nc5 10.Be2 Be7 11.0–0 0–0 12.Qd4 Bd6 13.Rfd1 e5 14.Qh4 ab5; 8...Bd6 9.Be2 0–0 10.0–0 Qc7 11.Qd2 cd4 12.Qd4 Nc5 13.Qh4 e5 14.Rad1 Bb7) 9.Be2 (9.dc5 Nc5 10.Be2 Bd6 11.a5 ba5 12.Na4 Ncd7 13.Bd4 e5 14.Bb2 a6) 9...Qc7 (9...Bd6 10.0–0 0–0 11.Qd2 Qc7 12.dc5 Nc5 13.Rfd1 e5 14.Kh1 Rac8) 10.0–0 cd4 (10...Bd6 11.Nb1= a6 12.dc5 Bc5 13.Nc3 0–0 14.ba6 Ba6) 11.Qd4 Bc5 (11...Bd6 12.Rad1 0–0 13.Qh4 Rfc8 14.Nd4 Nc5) 12.Qh4 0–0 (12...Be7 13.Qg5= (13.Qd4 e5 14.Qd1 0–0) 13...0–0 14.Rfd1 Rfc8) 13.Nd4 Rac8 (13...Rfc8 14.Nb3= (14.Rfd1 Be7) 14...Bd6; 13...Be7 14.Qh3 Rac8) 14.Nb3 Bb4?? (better is 14...Be7=) 15.Qb4+– 1–0. pierre – oppoqsu, internet, 2010.

7.d4 b6 8.c4 Bb7= (8...a6 9.cd5 Nd5 10.Nc3 N7f6 11.ba6 Ba6 12.Ba6 Ra6 13.0–0 Nb4 14.Qe2 Bd6; 8...cd4 9.Nd4 Bb7 10.cd5 Nd5 11.e4 Nb4 12.f3 e5 13.Nb3 Qh4 14.g3 Qf6; 8...Bd6 9.Nc3 Bb7 10.dc5 bc5 11.cd5 ed5 12.Bd3 Qe7 13.0–0 Ne5 14.Ne5 Qe5; 8...Be7 9.dc5 Nc5 10.cd5 Qd5 11.Qd5 ed5 12.Nd4 Bd7 13.Nd2 Rc8 14.a5 Nfe4) 9.cd5 Nd5 10.Bc4 cd4 11.Bd4 Bb4 12.Nbd2 0–0 13.0–0 Rc8 14.Qb3 Qe7.

7.d4 b6 8.dc5 Nc5 (8...Bc5 9.Bd3 0–0 10.0–0 Qc7 11.Qd2 e5 12.Bf5 e4 13.Bd7 Qd7 14.Nd4 Qc7) 9.Be2 Bd6 10.0–0 a6 11.Nbd2 0–0 12.Nb3 Nce4 13.Qd4 Re8 14.Ne5 Qc7.

7.d4 b6 8.Be2 Bd6 (8...Qc7 9.a5 ba5 10.Bc3 c4 11.Ba5 Qb7 12.Nc3 a6 13.ba6 Ra6 14.0–0 Qc6; 8...a6 9.c4 cd4 10.Nd4 dc4 11.Bc4 Bb4 12.Nc3 Bb7 13.0–0 Qc7 14.Qb3 Bd6; 8...c4 9.Ba3 Ba3 10.Na3 0–0 11.0–0 a6 12.ba6 Ne4 13.a7 Ra7 14.Nb5 Ra5) 9.0–0 0–0 10.dc5 Nc5 11.Be5 a6 12.Qd4 Nce4 13.Bd3 Bc5 14.Qb2 Qe7.

7.d4 c4 8.Be2 a6 9.ba6 Ra6 10.0–0 Qb6 11.Bc1 Qc6 12.Nc3 Bb4 13.Nb5 Ne4 14.Bd2 Nd2.

7.d4 Qc7 A) 8.Nbd2 c4 9.Ba3 Ba3 10.Ra3 a6 11.Ra1 Qa5 12.ba6 Ra6 13.Be2 0–0 14.0–0 Nb6; B) 8.Be2 cd4 9.ed4 Bb4 10.c3 Ba5 11.0–0 Ne4 12.Bd3 0–0 13.c4 Qf4 14.Bc1 Qg4; C) 8.c4 cd4 9.Qd4 e5 10.Qh4 a6 11.Nbd2 ab5 12.cd5 ba4 13.Ra4 Ra4 14.Qa4 Bd6; D) 8.Ba3 e5 (8...Bd6 9.c4 0–0 10.cd5 ed5 11.Be2 b6 12.0–0 Bb7 13.Nc3 Rac8 14.Rc1 Rfe8) 9.de5 Ne5 10.Nbd2 Bd6 11.Bb2 0–0 12.Be2 Bg4 13.h3 Bf3 14.Nf3 Rfe8; E) 8.dc5 Bc5 9.Nbd2= Bb4 10.c3 Bd6 11.c4 0–0 12.Be2 e5 13.cd5 Nd5 14.Rc1 Qa5.

7.d4 cd4 A) 8.Qd4 Bd6 (8...Bc5 9.Qf4 Qe7 10.Bd3 Bd6 11.Qg5 e5 12.Be2 h6 13.Qh4 Nf8 14.a5 d4) 9.Be2 Qc7 10.Qc3 Nc5 11.0–0 Bd7 12.a5 Rc8 13.Rd1 0–0 14.Nbd2 Rfe8; B) 8.ed4 Bb4 (8...Ne4 9.Bd3 Bb4 10.c3 Be7 11.Ba3 Nd6 12.0–0 0–0 13.Ne5 Qc7 14.Qf3 Nf6; 8...Bd6 9.Bd3 Qa5 10.Qd2 Qd2 11.Nbd2 Nh5 12.g3 Bc7 13.0–0 Nhf6 14.a5 0–0; 8...Qa5 9.Qd2 Qc7 10.Bd3 Ne4 11.Be4 de4 12.Ne5 f6 13.Nd7 Bd7 14.Ba3 e5) 9.Bc3 Bd6 10.Bd3 Ne4 11.Be4 de4 12.Nfd2 Nf6 13.Qe2 Qc7 14.Ne4 Ne4; C) 8.Nd4 e5 9.Nb3 Qc7 10.Bd3 Bb4 11.c3 Bd6 12.Ba3 Ba3 13.Ra3 Nb6 14.N3d2 0–0; D) 8.Bd4 Qc7 9.Nbd2 e5 10.Bb2 Bb4 11.c3 Ba5 12.Rc1 e4 13.Nd4 Ne5 14.N2b3 Bg4.

7.d4 Bd6 8.dc5 Nc5 (8...Bc5 9.Bd3 Qc7 10.0–0 0–0 11.a5 Bb4 12.Bd4 Ba5 13.Nbd2 Re8 14.Ne5 Ne5) 9.Be2 0–0 10.0–0 a6 11.c4 Qe7 12.cd5 Nd5 13.Nc3 Nc3 14.Bc3 e5.

7.Be2 Bd6 A) 8.a5 e5 (8...Bc7 9.Bc3 Ne4 10.a6 ba6 11.ba6 0–0 12.0–0 Rb8 13.Ra3 e5 14.Ba1 Nef6; 8...0–0 9.0–0 Bc7 10.d4 cd4 11.Bd4 Ba5 12.c4 dc4 13.Qc2 Bb6 14.Rd1 Qc7; 8...a6 9.b6 0–0 10.0–0 e5 11.d3 Qe7 12.Nbd2 e4 13.de4 de4 14.Ng5 Be5) 9.0–0 0–0 10.d3 Qc7 11.h3 Rd8 12.Nc3 Be7 13.Nh4 Nf8 14.Nf3 Ng6; B) 8.c4 0–0 (8...e5 9.cd5 Nd5 10.Nc3 N5f6 11.Qc2 0–0 12.0–0 Re8 13.d3 a6 14.Rfc1 b6) 9.cd5 ed5 10.0–0 Re8 11.Nc3 Ne5 12.d4 Nf3 13.Bf3 c4 14.Ba3 Bf5; C) 8.Nc3 e5 (8...Qa5 9.0–0 e5 10.d3 0–0 11.Qe1 Qc7 12.Nd2 a5 13.e4 d4 14.Nd1 Be7; 8...0–0 9.d4 cd4 10.Qd4 Qc7 11.Rd1 e5 12.Qh4 d4 13.Nb1 Qc2 14.Ba1 Bb4) 9.Nh4 0–0 10.0–0 Nb8 11.a5 d4 12.Nb1 e4 13.g3 a6 14.ed4 Bh3; D) 8.d3 0–0 (8...e5 9.c4 dc4 10.dc4 Qe7 11.Nc3 0–0 12.Bd3 Re8 13.Ng5 Rd8 14.0–0 Nf8; 8...a6 9.0–0 0–0 10.c4 e5 11.cd5 ab5 12.ab5 Ra1 13.Ba1 Nd5 14.Qb3 N5f6; 8...Qa5 9.Qd2 Qc7 10.c4 0–0 11.0–0 Ng4 12.h3 Nh2 13.Rc1 Nf3 14.Bf3 Ne5; 8...Qc7 9.c4 dc4 10.dc4 0–0 11.Nbd2 a6 12.Bd3 Rd8 13.0–0 Ng4 14.Qc2 Bh2; 8...Qe7 9.0–0 e5 10.a5 0–0 11.Nbd2 e4 12.Ne1 Rd8 13.c4 Be5 14.d4 cd4) 9.c4 Qe7 10.Qc2 a6 11.0–0 e5 12.Na3 b6 13.ba6 Ba6 14.Nb5 Bb7; E) 8.0–0 0–0 (8...e5 9.Nh4 0–0 10.Nf5 Bc7 11.d4 Re8 12.Nd2 cd4 13.ed4 e4 14.Re1 Nf8; 8...a6 9.d4 0–0 10.c4 b6 11.Nc3 Bb7 12.ba6 Ba6 13.dc5 Nc5 14.cd5 Be2; 8...Qc7 9.d4 cd4 10.ed4 Ng4 11.h3 Nh2 12.Re1 Nf3 13.Bf3 0–0 14.Ba3 Ba3) 9.d4 cd4 10.ed4 a6 11.Ba3 Ba3 12.Ra3 Re8 13.Ne5 Ne5 14.de5 Nd7.

6.Nf3 Bd6

7.c4 e5 8.d4 e4 9.Nfd2 =.

7.d4 0–0 8.c4 A) 8...Ne4 A1) 9.c5 Be7 (9...Bb8 10.Bd3 e5 11.0–0 ed4 12.ed4 Re8 13.Re1 Ndf6 14.Nbd2) 10.Bd3 e5 11.0–0 Re8 (11...ed4 12.ed4 Re8 13.Nbd2 f5 14.Re1) 12.Nbd2 (12.Re1 Nf2 13.Kf2 e4 14.Bc2) 12...Nd2 13.Nd2 e4 14.Be2; A2) 9.Bd3 Bb4 10.Nbd2 cb5 (10...Nd2 11.Nd2 dc4 12.Bc4 c5 13.Qc2 cd4 14.Bd4) 11.cb5 e5 12.0–0 (12.de5 Ndc5 13.Be2 Nd2 14.Nd2) 12...Nd2 13.Nd2 e4 14.Be2; A3) 9.Nbd2 Nd2 10.Nd2 Re8 11.bc6 bc6 12.Bd3 (12.Qc2 Rb8 13.Bd3 Qg5 14.0–0) 12...e5 13.cd5 cd5 14.Bb5; B) 8...dc4 9.Bc4 (9.bc6 bc6 10.Bc4 Rb8 11.Qc2 c5 12.0–0 cd4 13.Nd4 Bb7 14.Nb5) 9...cb5 (9...Nb6 10.Bd3 cb5 11.ab5 a6 12.0–0 ab5 13.Ra8 Na8 14.e4) 10.ab5 Qc7 (10...Nb6 11.Bd3 a6 12.0–0 ab5 13.Ra8 Na8 14.e4) 11.Nbd2 Nb6 12.Bd3 a5 13.Ba3 Rd8 (13...a4 14.0–0) 14.Bd6; C) 8...Bb4 9.Bc3 (9.Nbd2 Qe7 10.bc6 bc6 11.Bd3 c5 12.0–0 cd4 13.ed4 Rb8 14.Rc1) 9...Be7 10.Bd3 dc4 11.Bc4 Nb6 12.Bd3 cb5 13.ab5 a6 14.ba6; D) 8...Be7 9.Nbd2 (9.Nc3 Qa5 10.Bd3 Bb4 11.Qb3 dc4 12.Bc4 Nd5 13.Rc1 N5b6 14.0–0; 9.c5 e5 10.Be2 ed4 11.ed4 Ne4 12.0–0 Re8 13.Bd3 Qa5 14.Qc2; 9.cd5 Nd5 10.e4 Nb4 11.Nc3 c5 12.Rc1 Qb6 13.Nb1 Qa5 14.Nbd2; 9.Qc2 cb5 10.ab5 dc4 11.Bc4 Nb6 12.Be2 Bd7 13.0–0 Qb8 14.Rc1; 9.bc6 bc6 10.Nbd2 Rb8 11.Ba3 c5 12.Rc1 cd4 13.Be7 Qe7 14.Nd4) 9...c5 10.Be2 cd4 11.Bd4 Bd6 12.0–0 e5 13.Bb2 e4 14.Nd4; E) 8...Qc7 9.c5 (9.Nbd2 b6 10.Rc1 Bb7 11.cd5 Nd5 12.e4 Nb4 13.Qb3 Rfc8 14.Ba3; 9.bc6 Qc6 10.c5 Be7 11.Bb5 Qc7 12.a5 Nb8 13.Bd3 Nc6 14.Bc3; 9.Nc3 dc4 10.Bc4 c5 11.Rc1 Rd8 12.Nb1 cd4 13.Bd4 Bb4 14.Nbd2; 9.cd5 ed5 10.Bd3 Re8 11.0–0 a6 12.bc6 bc6 13.Qc2 c5 14.dc5) 9...Be7 10.bc6 bc6 11.Bd3 Rb8 12.Qc2 Ba6 13.Ba6 Qa5 14.Nc3; F) 8...c5 F1) 9.dc5 Nc5 10.cd5 (10.Be2 dc4 11.0–0 Nd3 12.Bc3 Ne4 13.Bd4 Nef2 14.Rf2) 10...Nd5 11.Bc4 Qa5 12.Qd2 Nb4 (12...Nd3 13.Bd3 Bb4 14.Nc3) 13.0–0 Rd8 14.Qc3; F2) 9.Be2 cd4 10.Qd4 (10.Nd4 Bb4 11.Nc3 e5 12.Nc2 Bc3 13.Bc3 Qc7 14.0–0) 10...e5 11.Qh4 Bb4 12.Bc3 Bc3 13.Nc3 Qa5 14.Rc1; F3) 9.Nc3 Qa5 10.cd5 (10.Qd2 cd4 11.Nd4 Bb4 12.Qc2 Nc5 13.Kd1 Nfe4 14.Rc1) 10...ed5 11.dc5 Nc5 12.Rc1 Qb4 13.Ba1 Nfe4 14.Nd4; F4) 9.Nbd2 cd4 10.Nd4 e5 11.N4f3 e4 12.Nd4 Nc5 (12...dc4 13.Rc1 Ne5 14.Nc4) 13.Be2 Bg4 14.f3; F5) 9.Ra2 Ne4 (9...cd4 10.Qd4 e5 11.Qh4 a6 12.ba6 ba6 13.Be2 Bb7 14.0–0) 10.Nbd2 (10.dc5 Ndc5 11.cd5 ed5 12.Be2 Qa5 13.Nbd2 Be6 14.0–0) 10...Qa5 11.cd5 ed5 12.dc5 Ndc5 13.Be2 Be6 (13...Bg4 14.0–0) 14.0–0; F6) 9.cd5 Nd5 (9...ed5 10.dc5 Nc5 11.Be2 Bf5 12.0–0 Rc8 13.Nc3 Be6 14.Rc1) 10.Nc3 Nc3 (10...Re8 11.Ne4 Be7 12.Rc1 cd4 13.Qd4 Qa5 14.Nfd2) 11.Bc3 Qe7 (11...Qf6 12.Rc1 Qe7 13.a5 Rd8 14.Bc4) 12.Rc1 (12.a5 Rd8 13.Bc4 cd4 14.Qd4) 12...Rd8 13.Be2 a6 14.ba6= (14.a5).

7.d4 0–0 8.Nbd2 A) 8...a6 9.c4 (9.Bd3 c5 10.dc5 Nc5 11.0–0 Bd7 12.Be2 b6 13.c4 ab5 14.ab5; 9.Be2 c5 10.dc5 Nc5 11.c4 b6 12.cd5 Nd5 13.Nc4 Bb7 14.0–0) 9...c5 10.cd5 ed5 11.dc5 Nc5 12.Be2 Re8 (12...Qe7 13.0–0 Bg4 14.h3) 13.0–0 Qe7 14.a5; B) 8...c5 9.dc5 (9.Be2 cd4 10.ed4 Ne4 11.Ne4 de4 12.Nd2 Nf6 13.Nc4 Bf4 14.g3) 9...Nc5 10.Be2 Nce4 (10...Qe7 11.c4 Rd8 12.cd5 Nd5 13.0–0 e5 14.Nc4) 11.0–0 Qc7 12.c4 Ng4 13.g3 Ngf6 14.Rc1; C) 8...Re8 9.Be2 (9.Bd3 c5 10.dc5 Nc5 11.Be5 Be5 12.Ne5 Qc7 13.f4 a6 14.0–0) 9...Qc7 (9...c5 10.0–0 cd4 11.ed4 Qc7 12.Re1 Ne4 13.Bd3 Nc3 14.Bc3) 10.c4 dc4 11.Nc4 Bb4 12.Ncd2 cb5 13.ab5 Rd8 (13...Nd5 14.0–0) 14.Qb3; D) 8...Qa5 9.c4 (9.Bd3 c5 10.dc5 Nc5 11.Bf6 gf6 12.0–0 Rd8 13.Nd4 Nd3 14.cd3) 9...c5 10.dc5 Bc5 11.Bd3 dc4 12.Bc4 Rd8 13.0–0 Bb4 14.Nb3; E) 8...a5 9.c4 (9.Bd3 c5 10.dc5 Nc5 11.0–0 Qe7 12.Be5 Rd8 13.Nb3 Nce4 14.Bd6; 9.Be2 Nb6 10.0–0 Re8 11.bc6 bc6 12.c4 dc4 13.Nc4 Nc4 14.Bc4) 9...Bb4 10.cd5 ed5 11.Bd3 c5 12.dc5 Nc5 13.Be2 Bg4 14.0–0; F) 8...Nb6 9.Bd3 (9.Be2 Bd7 10.Ba3 Ba3 11.Ra3 Qe7 12.Qa1 Rfc8 13.0–0 cb5 14.ab5; 9.bc6 bc6 10.Bd3 Rb8 11.Ba3 Ba3 12.Ra3 Qd6 13.Qa1 c5 14.dc5) 9...cb5 10.ab5 a6 11.ba6 ba6 12.Ba3 Ba3 13.Ra3 Qd6 14.Qa1; G) 8...Qe7 G1) 9.Bd3 c5 10.dc5 Nc5 11.Be5 Nfd7 (11...Be5 12.Ne5 Qc7 13.f4 a6 14.0–0) 12.Bd6 Qd6 13.0–0 e5 14.Be2; G2) 9.c4 c5 10.cd5 cd4 11.Bd4 e5 12.Bc3 e4 13.Nd4 Nb6 14.Bb2+= (14.Be2); G3) 9.Be2 c5 10.0–0 c4 11.e4 Ne4 12.Ne4 de4 13.Nd2 Rd8 14.Nc4= (14.Re1).

7.d4 0–0 8.Bd3 A) 8...a6 A1) 9.Nbd2 c5 10.dc5 Nc5 11.0–0 Bd7 (11...Nd3 12.cd3 Qe7 13.e4 de4 14.de4) 12.Be2 b6 13.Nc4 (13.c4 ab5 14.ab5) 13...Be7 14.Nce5; A2) 9.Ba3 Ba3 10.Na3 Qa5 11.Qd2 Qa4 12.ba6 b5 13.0–0 Qa6 14.Rfb1; A3) 9.Nc3 e5 10.bc6 bc6 11.de5 Ne5 12.Ne5 Be5 13.Ra3 c5 14.Qd2; A4) 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Qa5 (12...Nb6 13.Ne5 Qc7 14.Nd2) 13.Nc3 Nb6 14.Ne5; B) 8...Qa5 9.Nbd2 c5 10.dc5 Nc5 11.Bf6 gf6 12.0–0 Rd8 13.Nd4 Nd3 14.cd3; C) 8...c5 9.dc5 Nc5 10.0–0 a6 11.Nbd2 Nd3 12.cd3 Qe7 (12...Nd7 13.e4 b6 14.e5) 13.e4 de4 14.de4.

7.d4 0–0 8.Be2 A) 8...a6 A1) 9.Nbd2 c5 10.dc5 Nc5 11.0–0 b6 12.Nb3 Nb3 (12...Nce4 13.c4 Bb7 14.Nbd4) 13.cb3 Ne4 (13...Qe7 14.Qd4) 14.Rc1; A2) 9.c4 dc4 10.bc6 bc6 11.Nbd2 Rb8 12.Nc4 Bb4 13.Nfd2 c5 14.0–0; A3) 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Nb6 (12...Qa5 13.Nc3 Nb6 14.Ne5) 13.Ne5 (13.Nbd2 Qc7 14.Ne5) 13...Qc7 14.Nd2; B) 8...Qc7 B1) 9.0–0 Ng4 10.h3 Nh2 11.Nh2 Bh2 12.Kh1 Bd6 13.c4 dc4 14.Na3; B2) 9.c4 dc4 10.Bc4 cb5 (10...Nb6 11.Bd3 cb5 12.ab5 Nc4 13.Qc2 Nb2 14.Qb2) 11.Bb5 e5 12.Nbd2 e4 13.Rc1 Qb6 14.Ne5; B3) 9.Bd3 e5 10.de5 Ne5 11.Ne5 Be5 12.Be5 Qe5 13.Nd2 Bg4 14.Qb1; B4) 9.Ba3 c5 10.c4 dc4 11.Bc4 e5 12.dc5 Nc5 13.Nbd2 Bf5 14.Rc1; B5) 9.Nbd2 a6 10.c4 dc4 (10...b6 11.0–0 ab5 12.cd5 Nd5 13.ab5 Ra1 14.Qa1) 11.bc6 Qc6 12.Nc4 Bb4 13.Ncd2 b6 14.Qb3; C) 8...Ne4 9.0–0 cb5 10.ab5 a6 11.ba6 ba6 12.Ba3 Nb6 13.Bd3 Bb7 14.Nfd2; D) 8...c5 9.dc5 (9.0–0 cd4 10.ed4 Re8 11.Nbd2 Qc7 12.Re1 a6 13.Bd3 b6 14.Qe2) 9...Nc5 10.0–0 a6 11.c4 b6 12.Nc3 dc4 13.Bc4 Qe7 14.Nd4; E) 8...Qa5 E1) 9.Qd2 Qc7 10.0–0 c5 11.c4 cd4 12.Qd4 e5 13.Qh4 e4 (13...dc4 14.Rc1) 14.Nfd2; E2) 9.Bc3 Qc7 10.0–0 a6 11.bc6 Qc6 (11...bc6 12.Nbd2 Rb8 13.Nb3 Nb6 14.Bd3) 12.Bd3 Ne4 13.Qe1 Nc3 14.Qc3; E3) 9.Nbd2 Ne4 10.c4 (10.0–0 Nc3 11.Bc3 Qc3 12.Rc1 Nb6 13.Ra1 cb5 14.ab5) 10...Bb4 11.bc6 bc6 12.Qc2 (12.Ba3 Ba3 13.Ra3 Nc3 14.Qc2) 12...Rd8 13.Bd3 (13.Bc1 e5 14.cd5) 13...Rb8 14.Ba3.

7.d4 a6 8.c4 A) 8...ab5 9.c5 Be7 10.ab5 Ra1 11.Ba1 0–0 12.Nc3 e5 13.Be2 e4 (13...ed4 14.ed4) 14.Nd2; B) 8...dc4 9.bc6 bc6 10.Bc4 Rb8 11.Qc2 c5 12.0–0 cd4 13.Bd4 e5 14.Bc3.

7.d4 cb5 A) 8.Bb5 A1) 8...Qa5 9.Qd2 (9.Nbd2 a6 10.0–0 Qc7 11.Bd3 0–0 12.c4 b6 13.cd5 ed5 14.Qb3) 9...Qc7 10.Ba3 Ba3 11.Na3 Ne4 12.Qb4 a6 13.Bd3 Nef6 14.c4; A2) 8...a6 9.Bd3 Nb6 10.a5 Nc4 11.Bc4 dc4 12.Nbd2 Qc7 13.c3 0–0 14.Qe2; B) 8.ab5 B1) 8...Ne4 9.Bd3 (9.Nbd2 Qc7 10.Ne4 de4 11.Nd2 Nf6 12.Nc4 Be7 13.b6 Qb8 14.Ba3; 9.Be2 Ndf6 10.0–0 0–0 11.Ba3 Ba3 12.Ra3 Qb6 13.Qd3 Bd7 14.Ne5) 9...a6 10.0–0 Nb6 11.Ne5 0–0 12.f3 Be5 13.de5 Nc5 14.Bd4; B2) 8...0–0 9.Bd3 (9.Ba3 Ba3 10.Ra3 Re8 11.Bd3 e5 12.de5 Ne5 13.Ne5 Re5 14.Ra4; 9.Be2 a6 10.ba6 ba6 11.Ba3 Qc7 12.Bd6 Qd6 13.Nbd2 e5 14.de5) 9...a6 10.ba6 ba6 11.Ba3 Qc7 12.Bd6 Qd6 13.Nbd2 e5 14.de5; B3) 8...Bb4 9.c3 (9.Nbd2 Qc7 10.Bd3 Ne4 11.0–0 Nc3 12.Qc1 a6 13.Nb1 Nb1 14.Rb1) 9...Ba5 10.Bd3 Bc7 11.0–0 e5 12.b6 Nb6 13.Ne5 0–0 14.Nd2; B4) 8...Nb6 9.Bd3 (9.Ba3 0–0 10.Bd3 a5 11.0–0 a4 12.Ne5 Qc7 13.Bd6 Qd6 14.Na3; 9.Be2 a6 10.ba6 ba6 11.Ba3 0–0 12.0–0 a5 13.Ne5 a4 14.c4) 9...Qc7 10.Ba3 Ba3 11.Ra3 Nc4 12.Bc4 Qc4 13.Rb3 Qc7 14.0–0; B5) 8...a6 9.Bd3 (9.ba6 ba6 10.Ba3 Qa5 11.Qd2 Bc7 12.Nc3 Ne4 13.Ne4 de4 14.Qa5) 9...0–0 10.0–0 Nb6 11.ba6 ba6 12.Ba3 Ne4 13.Nbd2 Nc3 14.Qe1.

7.d4 c5 8.c4 A) 8...0–0 A1) 9.dc5 Nc5 10.cd5 Nd5 11.Bc4 Qa5 12.Qd2 Nb4 (12...Nd3 13.Bd3 Bb4 14.Nc3) 13.0–0 Rd8 14.Qc3; A2) 9.Be2 cd4 10.Qd4 e5 11.Qh4 Bb4 12.Bc3 Qa5 (12...Bc3 13.Nc3 Qa5 14.Rc1) 13.Bb4 Qb4 14.Nbd2; A3) 9.Nc3 Qa5 10.cd5 ed5 11.dc5 Nc5 12.Rc1 Qb4 13.Ba1 Nfe4 14.Nd4; A4) 9.Ra2 cd4 10.Qd4 e5 11.Qh4 a6 12.ba6 ba6 13.Be2 dc4 14.Bc4; A5) 9.Nbd2 cd4 10.Nd4 e5 11.N4f3 e4 12.Nd4 Nc5 13.Be2 Bg4 14.f3; A6) 9.cd5 ed5 10.dc5 Nc5 11.Be2 Bf5 (11...Re8 12.0–0 Qe7 13.a5 Bg4 14.h3) 12.0–0 Rc8 13.Nc3 Re8 14.Rc1; B) 8...cd4 B1) 9.Bd4 0–0 10.cd5 Nd5 11.Bc4 N5f6 12.Bc3 Nb6 (12...Ne4 13.Qc2 Ndc5 14.0–0) 13.Bd3 Nbd5 14.0–0; B2) 9.Nd4 Nb6 10.Nd2 0–0 11.Nc2 a5 (11...Bc7 12.a5 Nbd7 13.Nb3 Ne5 14.b6) 12.cd5 (12.Bd3 Nfd7 13.cd5 Nc5 14.Nc4) 12...Nfd5 13.Bd3 Qh4 14.Ne4; B3) 9.Qd4 e5 10.Qd1 e4 11.Nfd2 Nb6 (11...dc4 12.Nc4 Bb4 13.Bc3 Qe7 14.Be2) 12.cd5 (12.Nc3 0–0 13.Nd5 Nfd5 14.cd5) 12...0–0 13.Nc3 Bb4 14.d6+= (14.Rc1).

7.d4 c5 8.dc5 Nc5 9.Be2 Qe7 (9...0–0 10.0–0 a6 11.c4 b6 12.Nc3 dc4 13.Bc4 Qe7 14.Nd4) 10.Nc3 (10.0–0 e5 11.Nc3 e4 12.Nd4 Qe5 13.g3 Bh3 14.Re1) 10...Bd7 (10...0–0 11.0–0 Qc7 12.a5 Bd7 13.Na4 Nce4 14.b6) 11.a5 Rc8 (11...0–0 12.0–0 Rfd8 13.Qd4 e5 14.Qh4) 12.0–0 0–0 13.Qd2 Nfe4 (13...Rc7 14.Rfd1) 14.Ne4.

7.d4 c5 8.Be2 A) 8...Qa5 A1) 9.Qd2 Qc7 10.0–0 (10.dc5 Nc5 11.Bf6 Ne4 12.Qd3 Nf6 13.0–0 e5 14.Qc3) 10...cd4 (10...0–0 11.c4 cd4 12.Qd4 e5 13.Qh4 e4 14.Nfd2) 11.ed4 Ng4 12.g3 Ngf6 (12...Ndf6 13.Ba3 Ba3 14.Ra3) 13.Ba3 0–0 (13...Ba3 14.Ra3) 14.Bd6; A2) 9.Nbd2 c4 10.0–0 Nb6 11.c3 0–0 12.e4 Ne4 13.Ne4 de4 14.Nd2; A3) 9.Bc3 Qc7 10.dc5 Bc5 11.0–0 0–0 12.a5 Bd6 13.Qd4 Re8 (13...e5 14.Qh4) 14.Rd1; B) 8...0–0 B1) 9.0–0 cd4 10.ed4 Re8 11.Re1 (11.a5 Qc7 12.Bd3 Bb4 13.a6 ba6 14.ba6) 11...Qc7 12.Ba3 (12.Bd3 e5 13.de5 Ne5 14.Be5) 12...Bf4 13.g3 Bh6 14.Bb4; B2) 9.dc5 Nc5 10.0–0 a6 11.c4 Qe7 (11...b6 12.Na3 Bb7 13.ba6 Ba6 14.Nb5) 12.cd5 Nd5 13.Nc3 (13.Nbd2 Rd8 14.e4) 13...Nc3 14.Bc3; C) 8...cd4 C1) 9.Qd4 Qc7 (9...e5 10.Qd2 0–0 11.Ba3 Ba3 12.Ra3 Qe7 13.0–0 Rd8 14.Rd1) 10.Qc3 Nc5 11.0–0 Bd7 12.a5 0–0 13.Nbd2 (13.Rd1 Rfe8 14.Ne5) 13...Rfc8 (13...Rac8 14.Ne5) 14.Rfd1; C2) 9.Nd4 Qc7 10.Nd2 Bh2 11.c4 Bd6 12.Rc1 (12.cd5 Nd5 13.Rc1 Qd8 14.Ne4) 12...Qd8 13.Qc2 e5 14.Nf5; C3) 9.Bd4 Qc7 (9...e5 10.Bb2 Qc7 11.Nbd2 Bb4 12.Rc1 Bc3 13.Bc3 Qc3 14.0–0) 10.Nbd2 (10.Bb2 e5 11.Nbd2 a6 12.c4 ab5 13.ab5 Ra1 14.Qa1) 10...e5 11.Bb2 Nc5 (11...0–0 12.Rc1 e4 13.Nd4 Rd8 14.c4) 12.c4 e4 13.Nd4 Bg4 14.f3; C4) 9.ed4 Qa5 10.Nbd2 Ne4 11.0–0 Nc3 12.Qe1 Ne2 13.Qe2 a6 14.c4; D) 8...a6 D1) 9.dc5 Nc5 10.0–0 0–0 11.c4 b6 12.Na3 (12.Nc3 dc4 13.Bc4 Qe7 14.Nd4) 12...Qe7 (12...Bb7 13.ba6 Ba6 14.Nb5) 13.Bf6 Qf6 14.cd5; D2) 9.Nc3 0–0 10.0–0 Qa5 11.dc5 Nc5 12.Qd4 Rd8 13.Ba3 Qc7 14.a5; D3) 9.c4 cd4 10.Bd4 dc4 11.Bc4 e5 12.Bb2 Nb6 13.Bb3 ab5 14.Be5; D4) 9.0–0 0–0 10.c4 b6 11.Nc3 Bb7 12.ba6 Ba6 13.dc5 Nc5 14.Nb5= (14.cd5).

7.d4 Ne4 8.Nbd2 A) 8...Bb4 9.Bd3 (9.Be2 Qa5 10.c4 Nb6 11.cd5 cd5 12.Qc2 Bd7 13.Ba3 Bc3 14.Ra2) 9...Qa5 10.Qe2 (10.bc6 bc6 11.c4 Ba6 12.Ba3 Bc3 13.Rc1 Nd2 14.Nd2) 10...Nc3 (10...0–0 11.c4 Nb6 12.cd5 ed5 13.bc6 bc6 14.Be4) 11.Qf1 0–0 12.bc6 bc6 13.Nb3 Ne4 14.Kd1; B) 8...Qa5 9.Bd3 Bb4 10.Qe2 (10.bc6 bc6 11.Ke2 Ba6 12.Nb3 Qb6 13.a5 Bd3 14.cd3) 10...Nc3 11.Qf1 c5 (11...0–0 12.bc6 bc6 13.Nb3 Ne4 14.Kd1) 12.dc5 (12.Nb3 Qc7 13.Ba3 Ba3 14.Ra3) 12...Nc5 13.h3 (13.Qg1 e5 14.Bf1) 13...e5 14.Be2; C) 8...cb5 C1) 9.ab5 Ndf6 (9...Qc7 10.Ne4 de4 11.Nd2 Nf6 12.Nc4 Be7 13.b6 Qb8 14.Ba3) 10.Bd3 (10.c4 dc4 11.Bc4 Nd2 12.Nd2 0–0 13.Ba3 Re8 14.Bd6) 10...0–0 11.0–0 Qc7 12.c4 Nd2 13.Qd2 dc4 14.Rfc1; C2) 9.Ne4 de4 10.Nd2 ba4 11.Ne4 Be7 12.Ra4 Nb6 13.Ra1 Qd5 14.Nd2; C3) 9.Bb5 0–0 10.0–0 a6 (10...Nb6 11.Ne4 de4 12.Ne5 a6 13.Be2 Qc7 14.c4) 11.Bd3 Ndf6 12.c4 Nd2 13.Nd2 Qc7 14.h3+= (14.c5); D) 8...0–0 9.Bd3 Nd2 (9...Ndf6 10.0–0 Nd2 11.Qd2 Qe7 12.bc6 bc6 13.c4 dc4 14.Bc4) 10.Qd2 c5 11.dc5 Nc5 12.0–0 Qc7 (12...Nd3 13.cd3 f6 14.Ba3) 13.Rfd1 (13.a5 Bd7 14.Be2) 13...Rd8 14.a5; E) 8...Ndf6 E1) 9.c4 Bb4 10.Bd3 (10.bc6 Ng4 11.cb7 Bb7 12.a5 Bc6 13.cd5 ed5 14.Ba6) 10...Nd2 11.Nd2 dc4 12.Bc4 cb5 (12...Ne4 13.Bc1 cb5 14.ab5) 13.ab5 (13.Bb5 Bd7 14.Bd7) 13...Ne4 14.Bc1; E2) 9.Bd3 cb5 10.ab5 0–0 11.0–0 Qc7 12.c4 Nd2 13.Qd2 dc4 14.Rfc1; F) 8...a6 9.Ne4 (9.c4 Bb4 10.bc6 bc6 11.Bd3 Rb8 12.Rb1 Qa5 13.c5 Ndf6 14.Qc2; 9.Bd3 Nd2 10.Qd2 ab5 11.ab5 Ra1 12.Ba1 cb5 13.Bb5 0–0 14.0–0; 9.bc6 bc6 10.Ne4 de4 11.Nd2 Nf6 12.Nc4 Bc7 13.Be2 Nd5 14.c3; 9.ba6 Nd2 10.Qd2 b6 11.Qc3 Nb8 12.Ba3 Ba6 13.Ba6 Ra6 14.Bd6) 9...de4 10.Nd2 Nf6 11.bc6 bc6 12.Nc4 Bc7 13.Be2 Nd5 14.c3; G) 8...Nd2 G1) 9.Qd2 Nf6 10.bc6 bc6 11.Bd3 Rb8 12.Rb1 (12.Bc3 Ba6 13.Ba6 Ne4 14.Qd3) 12...Rb4 (12...Ne4 13.Be4 de4 14.Ne5) 13.Ne5 Bb7 (13...Bd7 14.c4) 14.c4; G2) 9.Nd2 0–0 10.c4 a6 11.c5 Be7 (11...Bb8 12.Bd3 e5 13.0–0 e4 14.Be2) 12.Bd3 ab5 13.ab5 Ra1 14.Ba1= (14.Qa1).

7.d4 Ne4 8.Bd3= Ndf6 (8...Qa5 9.Nbd2= Bb4 10.Ke2 (10.bc6 bc6 11.c4 Ba6 12.Ba3 Bc3 13.Rc1 Nd2 14.Nd2) 10...Nc3 11.Bc3 Bc3 12.bc6 bc6 13.Nb3 Qb4 14.Ra2; 8...a6 9.0–0 (9.Nbd2 Nd2 10.Qd2 ab5 11.ab5 Ra1 12.Ba1 cb5 13.Bb5 0–0 14.0–0; 9.bc6 bc6 10.Ba3 c5 11.0–0 Rb8 12.c4 0–0 13.Qc2 f5 14.Nbd2; 9.ba6 ba6 10.Nbd2 Rb8 11.Rb1 Qa5 12.0–0 Nd2 13.Nd2 e5 14.e4) 9...ab5 10.ab5 Ra1 11.Ba1 cb5 12.Nc3 (12.Nbd2 Nd2 13.Qd2 b4 14.Rb1) 12...Nc3 13.Bc3 b4 14.Bd2; 8...0–0 A) 9.Nbd2 Ndf6 (9...Qa5 10.c4 Nd2 11.Nd2 dc4 12.Bc4 Rd8 13.0–0 cb5 14.Bb5) 10.0–0 cb5 11.ab5 Qc7 (11...Bd7 12.Ne5 Qc7 13.c4 Nd2 14.Qd2) 12.c4 Nd2 13.Qd2 dc4 14.Rfc1; B) 9.0–0 Qf6 10.Nbd2 Nd2 11.Qd2 a6 12.e4 de4 13.Be4 ab5 14.ab5; 8...Qf6 A) 9.0–0 0–0 (9...Nec5 10.Be2 Ne4 11.c4 0–0 12.Qc2 cb5 13.c5 Be7 14.ab5) 10.Nbd2 Nd2 11.Qd2 Re8 (11...a6 12.e4 de4 13.Be4 ab5 14.ab5) 12.e4 e5 13.Rfe1 (13.Rae1 a6 14.de5) 13...Re7 (13...a6 14.de5) 14.ed5; B) 9.Nbd2 Nd2 10.Qd2 cb5 11.ab5 Nc5 12.Ba3 Nd3 13.Qd3 (13.cd3 Bc7 14.0–0) 13...Bc7 (13...Bb8 14.Bc5) 14.0–0; 8...c5 A) 9.Be4 de4 10.Nfd2 cd4 11.Ne4 Bb4 12.c3 dc3 13.Bc3 Qe7 (13...Bc3 14.Nbc3) 14.0–0; B) 9.dc5 Ndc5 10.0–0 0–0 (10...f6 11.a5 Bd7 12.c4 Nd3 13.Qd3 Nc5 14.Qd1) 11.a5 Bc7 (11...f6 12.Nbd2 Bc7 13.a6 ba6 14.ba6) 12.b6 Bb8 13.Nbd2 Nd2 14.Nd2; C) 9.0–0 c4 10.Be4 de4 11.Nfd2 Qc7 12.h3 Nf6 13.Nc3 0–0 14.Nce4; 8...cb5 9.ab5 a6 10.0–0 Nb6 11.Ne5 0–0 12.f3 Be5 (12...f6 13.fe4 fe5 14.Rf8) 13.de5 Nc5 14.Bd4) 9.0–0 Qc7 (9...0–0 10.Ne5 Qc7 11.Qf3 c5 12.c4 cd4 13.ed4 Nc5 14.Nd2) 10.Ne5 (10.Nbd2 0–0= 11.c4 (11.Ba3 c5 12.Qe1 a6 13.Be4 de4 14.Ng5) 11...Nd2 12.Qd2 dc4 13.Bc4 Ng4 (13...cb5 14.Bb5) 14.h3) 10...c5 (10...cb5 11.ab5 0–0 12.Qf3 Rd8 (12...Bd7 13.c4 Nc5 14.Be2) 13.Rc1 Qb8 14.Qf4) 11.f3 (11.Nd2 Nd2 12.Qd2 c4 13.Be2 Ne4 14.Qd1) 11...cd4 12.ed4 Nc5 13.Be2 (13.a5 Nd3 14.Qd3) 13...Ncd7 (13...0–0 14.Nd2= (worse is 14.dc5 Be5 15.Be5 Qe5–/+; 14.Re1=)) 14.f4 Ne4 15.Bd3 Ne5 (better is 15...0–0!?=) 16.fe5+/– (worse is 16.de5 Bc5 17.Kh1 Nf2 18.Rf2 Bf2–/+) 16...Be5 (16...Bb4 17.Be4 de4 18.c3+/–) 17.de5+– Qc5 18.Kh1 Nf2 19.Rf2! Qf2 20.Nd2 Bd7 (20...Qf4 21.c4+–) 21.Nf3 Qb6 22.Ba3 a6 23.ba6 (23.Qe1 ab5 24.ab5 Qa5+– (24...Bb5?? 25.Qb4 0–0–0 26.Bb5+–)) 23...ba6 24.Qd2 h6 25.a5 Qc6? (better is 25...Qb7+–) 26.Qb4 (26.Qb4 Kd8 27.Rc1+–) 1–0. Heindrich,Janos – Magyar,Andras, Spata, 1998.

7.Be2 e5 +=.

7.c4 0–0

8.Nc3 Ne5 (8...dc4 9.Bc4 e5 10.bc6 bc6 11.Qc2=) 9.Ne5= Be5 10.d4 Bd6 11.c5 Bc7 12.Bd3 e5 13.Be2 (13.0–0 e4 14.Be2 Bb8=) 13...Re8 14.h3 (14.0–0 Bf5=) 14...Ne4 (14...Qe7 15.0–0+=) 15.Ne4= de4 16.de5 (16.0–0 Qg5 17.Kh1 Qh4=) 16...Qg5+= 17.0–0?? (better is 17.g3+=) 17...Bh3–+ Threatening mate... how? (17...Be5?! 18.Be5 Re5 19.Kh1 Rc5 20.Qd4–/+) 18.g3 Bf1 19.Qf1 (19.Bf1 Rad8 20.Qc2 Be5–+) 19...Be5 20.Bd4 (20.Be5 Re5 21.bc6 bc6–+) 20...Re6 (better is 20...Bd4!? 21.ed4 Rad8 22.Qc1 Qc1 23.Rc1 Rd4 24.a5–+) 21.Rd1 Rae8 (21...Rd8 22.Bc4 Ree8 23.Qe2–+) 22.Qg2 (22.Bc4 R6e7–+) 22...Bd4 23.ed4 Rg6 24.Qh3 (24.Kf1 Qd5–+) 24...e3 25.f4 (25.Rd3 ef2 26.Kf2–+) 25...Qf4 (25...Qf4 26.g4 Qf2 27.Kh1 Ree6–+) 0–1. Kilpatrick,Robert – Bruges,WE, corr SCCA, 1978.

8.d4 c5 9.Be2 cd4 10.ed4 dc4 11.0–0 Qc7 12.Nbd2 c3 13.Rc1 Nd5 (worse is 13...cb2 14.Rc7 Bc7 15.Qc2+/–) 14.Qb3 Nc5 15.dc5 cb2 16.Qb2 Be7 17.Rfd1 Rd8 (worse is 17...Bc5 18.Ne4 b6 19.Bd3+=) 18.Ne4 f5 19.Ng3 Bc5 20.Nf5 b6 21.N5d4 Qd6 22.Qc2 h6 23.Bc4 Rf8 24.Ba2 Rf6 25.Bb1 g6 26.Qd2 Kg7 27.Rc4 Bd7 28.Nb3 Ba3 29.Qd3 Be8 30.Nbd2 Qe7 31.Ne4 Rf8 32.Nd4 Bb2 33.Nd6 Bd4 34.Ne8 Qe8 35.Qd4 Rf6 36.Be4 Rc8 37.Rdc1 Rc4 38.Rc4 (worse is 38.Qc4 Nf4+/–) 38...Qe7 39.Qe5 Qd8 40.g3 Kf7?? (better is 40...g5+–) 41.Bd5 Qd5 (41...ed5 42.Rc7 Kg8+–) 42.Rc7 Kg8 (42...Ke8 43.Qf6 Qd1 44.Kg2 Qd5 45.f3 Qd2 46.Kh3 Qd7 47.Qh8 Ke7 48.Qg7 Kd6 49.Rd7 Kc5 50.Qd4) 43.Qf6 1–0. gioco1b4 (2505) – papartel (2275), 2013.

8.d4 Ne4 =.

8.Be2 cb5 9.cb5 a6 A) 10.d4 ab5 11.Bb5 (11.ab5 Ra1 12.Ba1 Qc7 13.0–0 b6 14.Qd2 Ne4 15.Qb2) 11...Nb6 12.Ba3 Ba3 13.Ra3 Bd7 14.0–0 Bb5 15.ab5; B) 10.Nc3 e5 11.0–0 (11.Rc1 Nb6 12.ba6 ba6 13.d4 e4 14.Ne5 Nbd7 15.Nb1) 11...e4 12.Nd4 Be5 13.d3 Qc7 14.h3 Rd8 15.a5; C) 10.0–0 ab5 11.ab5 Ra1 12.Ba1 e5 13.Qc2 Qe7 14.Bc3 (14.Bb2 Nb6 15.d4) 14...Nb6 15.Ba5; D) 10.ba6 ba6 11.Ba3 Ba3 12.Na3 (12.Ra3 Rb8 13.d4 Qa5 14.Nbd2 Ne4 15.Qc2) 12...Nc5 13.Qc2 (13.Nb1 Qa5 14.Ne5 Ncd7 15.Nf3) 13...Qa5 14.Nb1 Rb8 (14...Nce4 15.0–0) 15.0–0; E) 10.Ba3 Ba3 11.Ra3 ab5 12.Bb5= (12.ab5 Ra3 13.Na3 e5 14.0–0 e4 15.Nd4) 12...Nb6 13.Qb3 Bd7 14.d3 Qc7 15.0–0.

8.Be2 cb5 9.cb5 e5 A) 10.Ba3 Ba3 11.Ra3 d4 12.Qc2 Re8 13.ed4 e4 14.Ng1 (14.Ng5 h6 15.Nh3) 14...Nf8 (14...Nd5 15.d3) 15.Bc4; B) 10.Qc2 e4 11.Nd4 Ne5 12.0–0 Bg4 (12...Be6 13.Nc3 Rc8 14.a5 Nc4 15.Bc4) 13.f3 Rc8 14.Nc3 ef3 15.Nf3; C) 10.0–0 Qa5 11.Ba3 (11.Qc2 e4 12.Nd4 Nc5 13.Rc1 Bd7 14.Nb3 Nb3 15.Qb3) 11...Ba3 12.Ra3 e4 13.Nd4 Nb6 (13...Nc5 14.Qc2 Ne6 15.Nf5) 14.d3 Bd7 (14...Nbd7 15.Qd2) 15.Qd2; D) 10.d3 a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1 Re8 14.Qc2 Nb6 15.Nc3; E) 10.d4 e4 11.Nfd2 Nb6 12.a5 Nbd7 13.Nc3 Re8 (13...Bc7 14.Qa4 Nb8 15.Nb3) 14.0–0 (14.Qa4 Nf8 15.0–0) 14...Qc7 15.h3= (15.Qb3).

8.Be2 cb5 9.cd5 A) 9...Nd5 10.ab5 e5 11.Nc3 Nc3 12.dc3 Nc5 13.Ba3 Qc7 14.0–0 (14.Qc2 e4 15.Nd2) 14...e4 15.Nd2; B) 9...e5 B1) 10.Bb5 e4 11.Nd4 Nd5 12.d3 Qg5 13.0–0 Ne5 14.Kh1 (14.Qd2 Qh6 15.h3) 14...Bg4 (14...Nd3 15.Bd3) 15.Qb3; B2) 10.ab5 Nd5 11.Nc3 Nc3 12.dc3 Qe7 (12...Nc5 13.Ba3 Qc7 14.0–0 e4 15.Nd2) 13.0–0 (13.Qc2 Rd8 14.e4 Nc5 15.Bc1) 13...Rd8 14.e4 Nc5 15.Qb1.

8.Be2 Nb6 9.d3 A) 9...dc4 10.dc4 Bb4 11.Nbd2 Ne4 12.Qc2 Nd2 13.Nd2 cb5 14.ab5 a6 (14...Qc7 15.0–0) 15.c5; B) 9...cb5 10.ab5 (10.cb5 Nbd7 11.0–0 a6 12.Ba3 Ba3 13.Na3 e5 14.d4 e4 15.Nd2) 10...dc4 (10...a5 11.0–0 a4 12.Bd4 dc4 13.dc4 Nfd7 14.Nc3 a3 15.Bg7) 11.dc4 Bb4 (11...Qe7 12.0–0 e5 13.Nbd2 Rd8 14.Qc2 Nbd7 15.Rfd1) 12.Nbd2 Ne4 13.Qc2 Nd2 14.Nd2 Qd6 (14...a5 15.Bd3) 15.Bc3= (15.Rd1).

8.Be2 dc4 A) 9.bc6 bc6 10.Bc4 e5 (10...Nb6 11.Be2 Rb8 12.0–0 Qe7 13.Be5 c5 14.a5 Nbd7 15.Bd6) 11.d3 Rb8 12.Qc2 Re8 13.0–0 (13.Nbd2 Nb6 14.0–0 Nfd5 15.a5) 13...Nb6 14.Nbd2 Nfd5 15.a5; B) 9.Na3 B1) 9...Ba3 10.Ra3 cb5 11.ab5 Nb6 12.d3 cd3 13.Bd3 Nbd5 14.0–0 Qe7 15.Qd2; B2) 9...cb5 10.ab5 c3 11.Bc3 e5 12.Nc4 Qe7 13.0–0 Re8 14.Nd6 (14.Qc2 a6 15.e4) 14...Qd6 15.Qc2; B3) 9...c3 10.Bc3 (10.dc3) 10...Nb6 11.bc6 bc6 12.0–0 Ne4 13.Bb2 (13.Be5) 13...a5 (13...Rb8 14.Qc2 Nc5 15.Be5) 14.Qc2 f5 (14...Nc5 15.Nc4) 15.Rfb1+= (15.Nc4); B4) 9...Nb6 B41) 10.a5 c3 11.dc3 Nbd5 12.0–0 (12.Nc4 Be7 13.bc6 bc6 14.0–0 Rb8 15.Qc2) 12...Ne4 13.Qc2 f5 14.c4 Ndf6 15.Nb1; B42) 10.Nc4 Nc4 11.Bc4 cb5 (11...Nd5 12.0–0 Nb6 13.Be2 cb5 14.ab5 a5 15.d4) 12.ab5 a5 13.0–0 b6 14.d3 Bb7 15.e4; B43) 10.bc6 bc6 11.a5 c3 12.Bc3 Nbd5 13.Nc4 Bc7 14.Be5 Ba6 15.Bc7= (15.Qc2).

8.Be2 c5 9.0–0 b6 10.d4 Bb7 11.Nbd2 Qe7 12.Nb3 a5 13.ba6 Ba6=+ 14.cd5 ed5 15.Ba6 Ra6 16.dc5 bc5 17.Qc2 Rb8 18.Rfb1 Rba8 19.a5 Nb8 20.Ng5 g6 21.h3 Nc6 22.Bc3 h6=+ 23.Nf3 Ne4 24.Be1 Ne5 25.Nfd2=+ f5 26.Ne4 fe4–/+ 27.Bc3 Kh7 28.Nd2 Qg5 29.Rb7 Kg8 30.Qb3 Nf3 31.Nf3 ef3 32.Rg7 Kf8=+ 33.g3?? Bg3!–+ 34.Kf1 Bf2! 35.Kf2 Qg2 (36.Ke1 Qe2#) 0–1. Langaditis,Sevastianos – Greive,Burkhard, NRW–chT, 1992.

8.Be2 Qc7 9.bc6 A) 9...Qc6 10.cd5 (10.Na3 e5 11.Rc1 a6 12.cd5 Qd5 13.Nc4 Bc7 14.Ba3 Rd8 15.Nb2) 10...Nd5 11.Na3 Bb4 12.Rc1 Nc5 13.Bb5 Qd6 14.0–0 a6 15.d4; B) 9...bc6 10.cd5 ed5 11.0–0 Rb8 12.Qc2 Re8 13.d4 Ng4 14.h3 Ngf6 15.Rc1.

8.Be2 Qc7 9.d4 dc4 (9...Bb4 10.Nbd2 cb5 11.cb5 Ne4 12.0–0 Nd2 13.Nd2 a6 14.Ba3 Ba3 15.Ra3) 10.Bc4 Nb6 11.Bd3 cb5 12.ab5 Nc4 13.Qc2 Nb2 14.Qb2 Bb4 (14...a5 15.0–0) 15.Nbd2.

8.Be2 Qc7 9.cd5 A) 9...cd5 A1) 10.d4 a6 (10...Re8 11.Nbd2 a6 12.0–0 b6 13.Bd3 ab5 14.ab5 Bb7 15.Qe2) 11.Ba3 e5 12.Bd6 Qd6 13.ba6 ba6 14.de5 Ne5 15.Nbd2; A2) 10.Nc3 Qa5 (10...e5 11.Rc1 Qb8 12.d4 e4 13.Nd2 a5 14.Qb3 Nb6 15.Ba3) 11.0–0 e5 12.Ba3 Ba3 13.Ra3 e4 14.Nd4 Nc5 15.d3; B) 9...ed5 10.0–0 Ng4 11.h3 Nge5 12.Ne5 Ne5 13.bc6 bc6 14.d4 Nc4 15.Bc4; C) 9...Nd5 C1) 10.d4 cb5 11.ab5 N7f6 (11...Rd8 12.0–0 a6 13.Qd3 Qb6 14.Ba3 Nb4 15.Qb3) 12.Ba3 Ba3 (12...Bd7 13.0–0 Rfc8 14.Qd3 Nb4 15.Bb4) 13.Ra3 Bd7 14.Ne5 a6 (14...Rfc8 15.0–0) 15.ba6; C2) 10.Qc2 e5 11.bc6 (11.0–0 N7f6 12.d3 Be6 13.Nbd2 Rfc8 14.Nc4 cb5 15.ab5) 11...Nb4 12.Qd1 (12.Qc3 Nc6 13.Na3 Bb4 14.Qc2 Nc5 15.0–0) 12...Qc6 13.Nc3 Rd8 (13...Be7 14.0–0 Rd8 15.Qb1) 14.0–0 Nc5 15.d4; C3) 10.0–0 C31) 10...cb5 11.ab5 e5 12.e4 Nf4 13.d4 Rd8 (13...ed4 14.Bd4 Rd8 15.Nc3) 14.Nbd2 ed4 15.Bd4; C32) 10...e5 11.bc6 (11.e4 Nf4 12.d4 ed4 13.Bd4 Rd8 14.Ra2 Nc5 15.e5) 11...Qc6= 12.Bb5 Qc7 13.e4 N5f6 14.d4 ed4 15.Qd4; C4) 10.bc6 Qc6 11.Na3 (11.Nc3 Nc3 12.Bc3 e5 13.Rc1 Qd5 14.d4 e4 15.Ne5) 11...Nc5 12.Nb5 Be7 13.0–0 (13.Ne5 Qb6 14.0–0 f6 15.Nc4) 13...a6 14.d4 Ne4 15.Bd3+= (15.Qb1).

8.Be2 Qc7 9.h3 e5+= 10.d3 (10.cd5 Nd5 A) 11.bc6 bc6 12.Nc3 Rb8 13.Rb1 N7f6 14.0–0 Bf5 (14...e4 15.Nd4) 15.d3; B) 11.Nc3 Nc3 12.Bc3 cb5 13.ab5 e4+= 14.Nd4 Nb6 (14...Nf6 15.0–0) 15.0–0; 10.d4 dc4 11.bc6 bc6 12.Bc4 e4 13.Nfd2 Rb8 14.Qc2 Nb6 15.Ba3; 10.Nc3 dc4 11.Qc2 a6 (11...Rd8 12.Bc4 Nc5 13.d4 ed4 14.Nd4 Be5 15.0–0) 12.ba6 b6 13.Bc4 Ba6 14.Ba6 Ra6 15.0–0; 10.Na3 e4 11.Nd4 Ne5 12.cd5 c5 13.Nb3 Nd5 14.Rc1 b6 15.d4) 10...Re8 (10...dc4 11.dc4 e4 (11...Rd8 12.0–0 e4 13.Nfd2 Bh2 14.Kh1 Be5 15.Qc2) 12.Nfd2+= Rd8 (12...Ne5 13.Nc3 Rd8 14.Qb1 Bf5 15.g4) 13.Qc2 Be5 14.Be5 (14.0–0 Nc5 15.Be5) 14...Qe5 15.Nc3) 11.Ba3 (11.0–0 dc4 12.dc4 Nc5 13.Qc2 cb5 14.cb5 (14.ab5 a6 15.Nc3) 14...Be6 15.Nbd2= (15.a5)) 11...c5 (11...Ba3 12.Na3 e4 13.bc6 bc6 14.Nd4 c5 15.Ndb5) 12.0–0 (12.cd5 Nd5 13.0–0 a6+= (13...N7f6 14.Qc2 b6 15.Nbd2) 14.ba6 b6 15.Bb2) 12...e4 (12...dc4 13.dc4 Rd8 (13...e4 14.Nfd2 Be5 15.Ra2) 14.Nfd2 Nf8 15.Nc3) 13.de4 de4 14.Nfd2 Ne5 (14...Bh2 15.Kh1+= Be5; 14...Be5 15.Ra2) 15.Qc2= (15.Nc3=) 15...Bf5 16.Nc3 Rad8 17.Rad1 Qc8 (17...Qe7 18.Bb2+=) 18.Bb2 (better is 18.Nde4 Ne4 19.Ne4=) 18...Bh3?? (better is 18...Nf3! 19.Kh1 Nh4+=) 19.Nce4 (19.gh3? Qh3 20.f4 Nfg4–+ (20...Qe3?! 21.Rf2 Nd3 22.Nde4 Nf2 23.Nf2–+); 19.Nde4?! Bf5 20.Nf6 gf6+/–) 19...Ne4? (better is 19...Bf5 20.Nf6 gf6+=) 20.Qe4?? (20.Ne4 Bg2 A) 21.Nd6? Qh3 22.f3 Bf1 23.Bf1 Nf3 24.Kf2 Qh2 25.Bg2 Nh4–+ (25...Rd6?! 26.Rd6 Qg2 27.Kg2 Ne1 28.Kf2 Nc2 29.e4–+); B) 21.Kg2+–) 20...Bf5–/+ 21.Qh4 Nd3 (21...Bc2!?–/+) 22.Bc3+= Re6 23.g3 (23.e4 Nf4 24.Bf3–/+) 23...Rh6–/+ 24.Qg5 f6 (24...Bf8!? 25.e4 Bh3–/+) 25.Bf6+= Rf6 26.Nf3?? (26.Bd3 Bd3 27.Qd5 Kh8 28.Qd3 Bg3 29.Qe4–/+) 26...Nf2! 27.Rf2 (27.Rf2 Rg6; 27.Kf2 Rg6) 27...Bg3?? (better is 27...Rg6 28.Qh5 Rg3 29.Rg2 Rg2 30.Kg2 Bg6 31.Qd5 Bf7–/+) 28.Rd8+/– (worse is 28.Qg3 Rd1 29.Bd1 Rg6–/+) 28...Qd8 29.Rg2 (29.Qg3? Rg6 30.Qg6 Bg6–+) 29...Qc7 (better is 29...Qe7!? 30.Qg3 Qe3 31.Kf1 g6+/–) 30.Qg3+– (30.Rg3 Rg6 31.Qf5 Qg3 32.Kf1 Qg2 33.Ke1 Rf6 34.Qd5 Rf7+–) 30...Qa5?? (30...Qe7 31.Nd2 Rg6 32.Qb8 Kf7+–) 31.Qg7 1–0. hal1958 – taroak, playchess.de, 2003.

8.Be2 e5 9.c5 A) 9...Bc7 10.d4 (10.Qc2 Qe7 11.d4 ed4 12.Nd4 Ba5 13.Nc3 Qe4 14.bc6 bc6 15.Qe4; 10.bc6 bc6 11.Qc2 Rb8 12.d4 Ba5 13.Nfd2 Qe7 14.0–0 Re8 15.Ra3) 10...ed4 11.ed4 Ne4 12.0–0 Qf6 13.Qc2 Re8 14.Bd3 Ba5 15.Nbd2; B) 9...Bc5 B1) 10.Ne5 Ne5 11.Be5 Re8 12.Bf4 d4 13.Qc2 (13.bc6 Nd5 14.cb7 Bb7 15.Bg3) 13...Qd5 14.Bf3 Bf5 15.Bd5; B2) 10.bc6 bc6 11.Ne5 Ne5 12.Be5 Re8 13.Bf4 Bf5 14.0–0 (14.Qc1 Nd7 15.0–0) 14...d4 15.Qc1.

8.Be2 e5 9.d3 A) 9...Bb4 10.Bc3 (10.Nc3 dc4 11.dc4 Qa5 12.Qc2 Ne4 13.Rc1 Ndc5 14.0–0 Bf5 15.Nh4; 10.Nfd2 dc4 11.dc4 cb5 12.ab5 Qc7 13.0–0 Rd8 14.Qc2 a5 15.Rd1; 10.Nbd2 dc4 11.dc4 Qa5 12.0–0 e4 13.Nd4 c5 14.N2b3 Qc7 15.Nc2) 10...Bc3 11.Nc3 dc4 (11...Qa5 12.Qd2 dc4 13.dc4 a6 14.bc6 bc6 15.0–0) 12.dc4 Qa5 13.Qd2 a6 (13...Nc5 14.Ne4 Qd2 15.Ned2) 14.Rd1 ab5 15.ab5; B) 9...Qc7 10.cd5 (10.Nbd2 e4 11.de4 de4 12.Ng5 Be5 13.Qc2 Nc5 14.bc6 Bb2 15.Qb2) 10...cd5 11.Nbd2 a6 12.ba6 ba6 13.Rc1 Qb6 14.Bc3 Rb8 15.a5; C) 9...dc4 C1) 10.bc6 bc6 11.dc4 Qc7 12.Nc3 Rb8 (12...Rd8 13.Qc2 Nc5 14.Ba3 Rb8 15.0–0) 13.Qc2 (13.Ba3 Ba3 14.Ra3 Nc5 15.Qc2) 13...e4 14.Nd2 Nc5 (14...Re8 15.Ba3) 15.Ba3; C2) 10.dc4 Qc7 11.Nfd2 (11.Qc2 Rd8 12.Nbd2 cb5 13.ab5 Nc5 14.0–0 a5 15.b6) 11...Nc5 12.0–0 Bf5 (12...Rd8 13.a5 Bf5 14.Bc3 cb5 15.cb5) 13.f4 Rfd8 (13...Rad8 14.Ra2 ef4 15.Bf6) 14.Ra2 ef4 (14...Nce4 15.Ne4) 15.Bf6.

8.Be2 e5 9.cd5 A) 9...Nd5 10.Nc3 (10.bc6 bc6 11.Qc1 Bb7 12.Nc3 Nc5 13.Qc2 Nb4 14.Qb1 Ba6 15.Ba6) 10...Nc3 11.dc3 Qf6 12.Ba3 Nc5 13.Bc5 Bc5 14.Bd3 Bg4 (14...cb5 15.ab5) 15.Qc2; B) 9...cb5 B1) 10.ab5 e4 (10...Nd5 11.Nc3 Nc3 12.dc3 Qe7 13.Qc2 Rd8 14.e4 a5 15.0–0) 11.Nd4 Nd5 12.Nc3 N7f6 13.0–0 Nc3 14.Bc3 Nd5 15.f4; B2) 10.Bb5 e4 11.Nd4 Nd5 12.d3 Qg5 13.0–0 Ne5 14.Kh1 Bg415.Qb3; C) 9...e4 10.Nd4 c5 11.Nf5 Be5 12.Nc3 Nb6 13.d4 ed3 14.Qd3 Nfd5 15.Nd5; D) 9...cd5 D1) 10.Ba3 Nb6 11.d4 e4 12.Nfd2 Ba3 (12...Be6 13.Bd6 Qd6 14.a5 Nbd7 15.Ra3) 13.Na3 Be6 14.a5 Nbd7 15.Nc2; D2) 10.0–0 Qc7 (10...Qa5 11.Ba3 Ba3 12.Ra3 e4 13.Nd4 Ne5 14.Rc3 Bd7 15.f4) 11.Ba3 d4 12.Bd6 Qd6 13.Qc2 Nc5 (13...Re8 14.Ra3 Nb6 15.a5) 14.Rc1 b6 15.ed4; D3) 10.Qc2 e4 (10...a6 11.0–0 ab5 12.ab5 Ra1 13.Ba1 Qe7 14.Rc1 e4 15.Nd4) 11.Nd4 Ne5 (11...Nc5 12.0–0 Bd7 13.Nc3 Rc8 14.a5 Qc7 15.f4) 12.f4 (12.0–0 Be6 13.f4 ef3 14.Nf3 Rc8 15.Nc3) 12...Ng6 (12...ef3 13.Nf3 Nf3 14.Bf3 Ng4 15.Bd5) 13.Nc3 Bc5 14.Nd1 Bd4 15.Bd4; D4) 10.d3 a6 (10...Qa5 11.Qd2 Qc7 12.Na3 Nc5 13.Rc1 Qe7 14.Qd1 Ncd7 15.Nb1) 11.0–0 ab5 12.ab5 Ra1 13.Ba1 Qc7 (13...Re8 14.Qd2 Nb6 15.Rc1) 14.Qc1 Qb8 15.h3; D5) 10.d4 e4 11.Nfd2 Nb6 12.a5 Nbd7 13.Nc3 Re8 14.0–0 Qc7 15.h3= (15.Qb3).

6.f4 Bd6

7.Nf3 0–0 8.a5 =+.

7.Nf3 Qc7 8.c4 0–0+= 9.Na3 (9.a5 cb5 10.cd5 Nd5 11.Bb5 Bb4+=) 9...Rd8 (9...e5 10.Ne5 Ne5 11.Be5 Be5 12.fe5 Qe5 13.Be2+=) 10.Rc1 a6 11.bc6 bc6 12.cd5 ed5 13.Nd4 (13.Qc2 c5+=) 13...c5 14.Nf5 Rb8 15.Ba1 (15.Qc2 c4+=) 15...Bf8 16.Be2 c4 17.Nc2 Ne4 18.0–0 Qb6 (18...Qa5 19.d3 cd3 20.Bd3–/+) 19.d3+= cd3 20.Bd3 Ndc5 21.Ncd4 Nd3 22.Qd3 Bd7 23.Qc2 (23.Qd1 Qg6 24.Nh4 Qf6–/+) 23...Rdc8 24.Qa2 (24.Qe2 Ba4 25.Qa2 Rc1 26.Rc1 Bb3 27.Nb3 Qb3–/+) 24...Qa5 25.Ng3 (25.Rc8 Rc8 (worse is 25...Bc8 26.Nc6 Qd2 27.Nfe7 Be7 28.Ne7 Kf8 29.Qa3+/–) 26.Bb2 A) 26...Ba4?! 27.Ra1 Qb4 28.Rb1–+ (28.Qd5?? Qb2 29.Rf1 Nd2–+); B) 26...g6–+) 25...Qd2 (better is 25...Ng3 26.hg3 Re8–+ (26...Ba4?! 27.Nc6 Rc6 28.Rc6+=)) 26.Qd2+= Nd2 27.Rc8 Rc8 (27...Rc8 28.Rd1 Bb4–/+) 0–1. Michalek,Martin – Milde,Lars, TT–08 ETC, 2003.

7.Nf3 Qc7 8.bc6 bc6+= 9.d4 (9.Be2 Rb8 10.Ra2 e5 11.fe5 Ne5 12.Be5 Be5 13.Ne5 Qe5+=) 9...0–0 10.c4 (10.Bd3 Rb8 11.Ba3 c5+=) 10...Bb4 (10...Rb8 11.Qc2–/+) 11.Nbd2 (11.Bc3 Rb8+=) 11...Re8 (11...Ng4 12.Ke2–/+) 12.c5 (12.Ba3!? Ba3 13.Ra3+=) 12...Ng4 13.Qe2 a5 (13...Ndf6 14.Ng5–/+) 14.Ne5 Nge5 15.fe5 f6 16.ef6 Nf6 17.0–0–0 (17.Kd1 Bd2 18.Qd2 Ne4–/+) 17...Rf8 (17...e5 18.Qf2–+) 18.Nf3 (18.g4–+) 18...Ne4 (better is 18...Ng4!? 19.Rd3 Ba6–+) 19.Qc2–/+ Ba6 20.Ba6 Ra6 21.Kb1 (21.Rdf1 Rb8–/+) 21...Ra7–+ 22.Ka2 Rb7 23.Ba1 g5 (23...Qf7!?–/+) 24.Rhf1+= Rbb8 (24...Rf5 25.g4 Rf8 26.Ne5+=) 25.Ne5 h5 (25...Rf5!?+=) 26.Qe2= White gets the initiative 26...Qh7 27.Nc6 The passed pawn on c5 quickly leads to threats 27...Rf1 28.Rf1 (28.Nb8?? Rf2 29.Qf2 Nf2–+; 28.Qf1 Nc3 29.Kb3 Nd1 30.Qd1 Rb7–+) 28...Ra8 (28...Nd2!? 29.Rc1 Qd7=) 29.Ne5+/– Bd2 (better is 29...Nd2 30.Rc1 Ne4+/–) 30.Qf3 (better is 30.Qb5 Qc7 31.Rf7+/–) 30...Rb8= 31.Qf7 (31.Qd1!?=) 31...Qf7+= 32.Rf7 Rc8?? (better is 32...Rb4 33.Ra7 Ra4 34.Kb1 Be3 35.Ra8 Kg7 36.Ra7 Kf8 37.Ra8 Ke7 38.Ra7 Kd8 39.Nc6 Ke8+=) 33.Re7+– Be3 34.Re6 h4 (34...Rf8 35.c6+–) 35.Ng4 (35.Ra6 Bd2+–) 35...Bd2 (35...Bf4 36.Ra6+–) 36.Rb6 (36.Re7!? Rd8+–) 36...Kf7 (36...Kf8 37.Ra6+/–) 37.Kb3 (37.Ne5 Ke7+/–) 37...Bf4 (37...Ke7!?+/–) 38.Bc3+– Nc3 (38...Ra8 39.Rb5+–) 39.Kc3 Re8 40.Ne5 (better is 40.Rf6 Ke7 41.Ra6+–) 40...Be5+= 41.de5 Re5 42.Kd4 (42.Rd6 Ke7+=) 42...Re2= 43.Kd5 (43.Rb8 Ke7 44.Kd5 Rd2 45.Ke5 Rg2=) 43...Rg2 44.c6 Rd2 (44...Ke7 45.Rb8 Rd2 46.Kc5 Rc2 47.Kb6 Rb2 48.Ka7+/–) 45.Kc5+= Rh2 (45...Ke6 46.Rb8 Rc2 47.Kb6 Rb2 48.Ka7+/–) 46.c7 Rc2 47.Kd6 h3 48.Kd7 Kg7 49.Rb3 (49.Rb2 Rb2 50.c8Q h2 51.Qc3 Kg6 52.Qd3 Kg7+=) 49...Rd2= 50.Kc6 (50.Ke6 Re2 51.Kd6 Rd2 52.Ke7 Rc2=) 50...h2+= 51.Rh3 g4 52.c8Q Do you see the mate threat? 52...Rc2 53.Kb6 ½–½. Krumpholz,Wolfgang – Hunger,Fritz, corr JB'3090 DDR/M92, 1976.

7.Nf3 Qc7 8.bc6 Qc6 9.Bb5 Qc7 =.

7.Nf3 Qc7 8.Be2 0–0 =.

6.f4 Ne4

7.Nf3 Qa5 8.Nc3 Qb4 (8...Ndf6 9.Be2 Ng4 10.Ne4 de4 11.Bc3 Bb4 12.Bb4 Qb4 13.c3 Qd6) 9.Rb1 (9.Ra2) 9...cb5 (9...c5 10.Ne4 de4 11.Bg7 Bg7 12.Rb4 cb4 13.Ng5 Nf6) 10.Ne4 Qe4 11.Bd4 (11.ab5) 11...Qg6 12.Bb5 a6 13.Be2 (13.Bd3) 13...Bc5+= (13...Bd6).

7.Nf3 a6!?= A) 8.Be2 A1) 8...Be7 9.0–0 Bf6 10.Bf6 Qf6 11.Ra3 0–0 12.d3 Nd6 13.bc6 (13.d4 c5) 13...bc6; A2) 8...Bc5 9.Nc3 (9.0–0 0–0 10.Nc3 Ndf6 11.Ne4 Ne4 12.bc6 bc6 13.Ba3 Ba3) 9...ab5 (9...cb5 10.ab5 Be7 11.0–0 0–0 12.Ne4 de4 13.Nd4 Bf6) 10.ab5 Ra1 11.Qa1 Be7 12.Ne4 de4 13.Nd4 Qc7; A3) 8...cb5 9.ab5 Bb4 (9...Bc5 10.Nc3 Be7 11.0–0 0–0 12.Nd4 Nc3 13.Bc3 Qc7) 10.0–0 0–0 11.Bd4 Qc7 12.d3 (12.c3 Bc5 13.Bc5 Ndc5) 12...Nd6 13.c3 Bc5; A4) 8...Bd6 9.0–0 0–0 10.Nc3 cb5 11.ab5 f6 (11...Ndc5 12.d3 Nc3 13.Bc3 f6) 12.Ne4 (12.Qe1 Nc3 13.Bc3 e5) 12...de4 13.Nd4 Nb6; A5) 8...Bb4 9.0–0 0–0 10.d3 Nef6 (10...Nd6 11.c3 Bc5 12.d4 Bb6 13.c4 Nc4) 11.Ba3 Qa5 12.bc6 (12.Bb4 Qb4 13.bc6 bc6) 12...bc6 13.Bb4 (13.Ne5 Ba3) 13...Qb4; B) 8.Bd3 B1) 8...ab5 9.ab5 Ra1 10.Ba1 Be7 (10...Ndc5 11.Be2 Be7 12.0–0 0–0 13.Bd4 cb5) 11.Nc3 Ndc5 12.Be2 0–0 13.0–0 Nc3; B2) 8...Ndc5 9.Be2 Be7 10.0–0 0–0 11.Nc3 (11.d3 Nd6 12.bc6 bc6 13.Nd4 Bd7) 11...cb5 (11...Bd7 12.ba6 ba6 13.Ne4 Ne4) 12.ab5 Qc7 (12...Qb6 13.Qe1 Bd7) 13.Ne4 (13.Ra2 Rd8) 13...de4; C) 8.bc6 bc6 9.Ra2 Rb8 10.Nc3 Bb7 11.Ne4 de4 12.Ng5 (12.Ne5 Qh4 13.g3 Qd8) 12...c5 13.Qh5 Qe7; D) 8.ba6 ba6 9.Ra2 Rb8 10.Nc3 Ndc5 (10...Nef6 11.Be2 Bd6 12.0–0 0–0 13.Ba3 c5) 11.Ne4 Ne4 12.Be5 Ra8 13.Be2 f6; E) 8.Nc3 Be7 9.Ne4 de4 10.Nd4 ab5 11.ab5 Ra1 12.Qa1 Qb6 13.d3 c5.

7.Nf3 cb5 8.ab5 A) 8...f6 9.Nc3 (9.Be2 Qb6 10.0–0 Bc5 11.d4 Bb4 12.c4 a5 13.c5 Qc7) 9...Nc3 10.Bc3 Bd6 11.Nd4 Nc5 12.Qh5 g6 13.Qh4 (13.Qh6 e5) 13...0–0; B) 8...a6 9.Be2 Bb4 (9...Be7 10.0–0 0–0 11.Ne5 f6 12.Nf3 Qc7 13.Nc3 Nb6) 10.0–0 0–0 11.Bd4 Qc7 12.d3 (12.c3 Bc5 13.Qe1 a5) 12...Nd6 13.c3 Bc5; C) 8...Ndf6 9.Be2 Bc5 10.Bd4 (10.0–0 0–0 11.Bd4 Bd4 12.Nd4 Qc7 13.d3 Nd6) 10...Bd4 11.Nd4 0–0 12.0–0 a6 13.d3 (13.ba6 ba6) 13...Nc5; D) 8...Ndc5 9.Be2 Be7 10.Bd4 (10.0–0 0–0 11.Bd4 a5 12.d3 Nf6 13.Ne5 Bd7) 10...0–0 11.0–0 a5 (11...a6 12.d3 Nf6 13.Nbd2 Bd7) 12.Na3 (12.d3 Nf6 13.Nc3 Bd7) 12...Qc7 (12...Qb6 13.c4 Nd6) 13.c4 a4; E) 8...a5 9.Be2 Bc5 10.Nc3 Be7 (10...Nc3 11.Bc3 a4 12.Bg7 Rg8 13.Bb2 Rg2) 11.0–0 0–0 12.Na4 Bf6 (12...Nd6 13.Ra2 Ne4) 13.Bf6 (13.Bd4 Bd4) 13...Qf6; F) 8...Nb6 9.Bd4 Bd7 10.Be2 Nd6 11.Nc3 (11.Na3 Nf5 12.Bc3 Na4 13.Be5 f6) 11...Nf5 12.0–0 Nd4 13.Nd4 Qf6= (13...Bc5).

7.Nf3 c5 A) 8.Bd3 Be7 9.0–0 0–0 10.Nc3 Nc3 (10...Nd6 11.a5 Bf6 12.Be2 c4 13.Qb1 Nf5) 11.Bc3 a6 (11...Nf6 12.Be5 Ne4 13.c4 f6) 12.Qe1 c4 13.Be2 Nf6; B) 8.a5 c4 (8...Ndf6 9.Be2 c4 10.0–0 Qd7 11.Nd4 Bc5 12.Ba3 Bd4 13.ed4 a6) 9.Be2 (9.Nc3 Nef6 10.Ra4 Bd6 11.Be2 0–0 12.0–0 Qc7 13.d3 Nc5) 9...a6 (9...Bb4 10.0–0 Ba5 11.Bg7 Rg8 12.Bd4 Nd6 13.d3 Nb5) 10.b6 Bc5 11.d3 (11.0–0 0–0 12.Bd4 Nd6 13.d3 Nf5) 11...Bb4 12.Kf1 cd3 13.cd3 Nef6.

7.Nf3 Ndc5 A) 8.Nc3 Nc3 (8...f6 9.Be2 Nc3 10.Bc3 Ne4 11.Bb2 Bd7 12.bc6 bc6 13.Ra2 Rb8) 9.Bc3 Ne4 10.Bb2 Bd7 (10...f6 11.Be2 Bd7 12.0–0 Qa5 13.Bd4 Bd6) 11.Bd3 Be7 12.0–0 0–0 13.Ne5 f6; B) 8.Be2 B1) 8...Qa5 9.Nc3 (9.Bd4 Be7 10.0–0 0–0 11.d3 Nf6 12.Nc3 Ncd7 13.bc6 bc6) 9...Bd6 10.Ne4 (10.Nd4 0–0 11.0–0 Bd7 12.Qe1 Nc3 13.Bc3 Qc7) 10...Ne4 11.0–0 (11.bc6 bc6 12.Be5 Bc5 13.c3 0–0) 11...0–0 12.Be5 Be7 (12...Bc5 13.c3 f6) 13.bc6 bc6; B2) 8...cb5 9.ab5 Be7 10.0–0 0–0 11.Nd4 Qc7 12.Nc3 Nc3 13.Bc3 Ne4; B3) 8...Be7 9.0–0 0–0 10.Bd4 a6 (10...cb5 11.ab5 a6 12.d3 Nf6 13.Nbd2 Bd7) 11.d3 Nf6 12.Nc3 Bd7 13.bc6 Bc6.

7.Nf3 Bd6 8.Bg7+= Rg8 9.Bb2 (9.Bd4 c5 10.Bb2 c4 11.Nc3 Ndc5 (11...Nc3 12.Bc3 a6 13.ba6 Ra6) 12.Rg1 Nc3 13.Bc3 Ne4) 9...cb5 (9...Bb4 10.Rg1+/– Qb6 11.c3 Be7 (11...Bc5 12.Ba3 a6 13.Bc5 Qc5) 12.a5 Qc7 13.c4 Bb4) 10.ab5+/– e5? (better is 10...a5!?+/– 11.Nc3 (11.Rg1 a4 12.Na3 Qc7 13.Bd3 f6) 11...Nc3 (11...Ndc5 12.Ne4 de4 13.Ne5 Qh4) 12.Bc3 a4 13.Bd4 (13.Rg1 Nc5) 13...h5+/– (13...a3)) 11.d3+– (11.Ne5 Qh4 12.g3 Rg3 13.hg3 Qg3 14.Ke2 Be5 15.Be5 Ndc5 16.Rh7 Qf2) 11...Nec5 12.fe5 (worse is 12.Ne5 Qh4 13.Kd2 Be5 14.fe5 Qb4 15.Kc1 Na4+–) 12...Bc7 13.g3 Qe7 (13...Ba5 14.Bc3 Bb6 15.Bg2+–) 14.d4 (14.Nc3 Qe6+–) 14...Ne4 15.c3 (better is 15.Nfd2!?+–) 15...f6+/– 16.ef6 (16.Nbd2 Nd2 17.Qd2 Qe6+–) 16...Ndf6 1–0. Kucharkowski,Jens – Kunze, Freital, 1986.

7.Nf3 Ndf6 A) 8.Be2 A1) 8...Bb4 9.0–0 0–0 10.Ne5 Qb6 11.Rf3 Rd8 12.c3 (12.Ra2 Bd7 13.d3 Nd6) 12...Be7 (12...Ba5 13.Qc2 a6) 13.a5 Qc7; A2) 8...Bc5 9.0–0 (9.Nc3 0–0 10.Ne4 Ne4 11.0–0 Qa5 12.Bd3 f6 13.c4 Nd2) 9...0–0 10.Nc3 (10.Ne5 a6 11.ba6 ba6 12.Ba3 Qd6 13.Bc5 Qc5) 10...Qa5 (10...a6 11.Ne4 Ne4 12.Bd3 ab5 13.ab5 Ra1) 11.Qe1 Bb4 12.Ne4 Ne4 13.c3 Bc5; B) 8.Bd3 B1) 8...cb5 9.ab5 Bc5 10.Nc3 (10.0–0 0–0 11.Nc3 a6 12.Ne4 de4 13.Bf6 Qf6) 10...0–0 11.Ne4 (11.Ra4 Qb6 12.Qa1 Nd6 13.Ra2 Bb4) 11...Ne4 12.0–0 a6 13.Qe2 f6; B2) 8...Bd6 9.Ne5 Bd7 (9...c5 10.0–0 0–0 11.Be2 Be7 12.a5 Bd7 13.Nc3 Nc3) 10.0–0 0–0 11.Nc3 Nc5 (11...Nc3 12.Bc3 Ne4 13.Be4 de4) 12.Be2 Qc7 13.a5 (13.Nd7 Ncd7) 13...Rfd8; B3) 8...Be7 9.Ne5 cb5 10.ab5 0–0 11.0–0 a5 (11...Nc5 12.Be2 Qc7 13.Ba3 Bd6) 12.ba6 ba6 13.Nc6 Qc7; B4) 8...Bc5 9.Ne5 Qb6 (9...Qc7 10.bc6 bc6 11.Nc6 0–0 12.Nd4 a6 13.Nb3 Rb8) 10.a5 Qc7 11.0–0 0–0 12.bc6 (12.Ng4 Ng4 13.Qg4 f5) 12...bc6 13.Ba3 Qa5; B5) 8...Bd7 9.0–0 (9.Nc3 Bd6 10.Ne4 Ne4 11.Be4 de4 12.Ng5 Be7 13.Ne4 cb5) 9...Bb4 10.Ne5 0–0 11.Ba3 Ba3 12.Ra3 Qe7 (12...Qc7 13.Be4 de4) 13.Be4 de4; B6) 8...Bb4 9.0–0 0–0 10.Ne5 Qb6 11.Ba3 Bd2 12.Nd2 Qe3 13.Kh1 Nd2; C) 8.bc6 bc6 9.Be2 (9.Nc3 Rb8 10.Ra2 Qa5 11.Ne4 Ne4 12.Bd3 f6 13.Nd4 Bd7) 9...Be7 (9...Rb8 10.Be5 Rb7 11.0–0 Ng4 12.a5 f6 13.Bc3 Rb1) 10.0–0 0–0 11.a5 (11.d3 Nd6 12.Ne5 Bb7 13.Nc3 Nf5) 11...a6 12.Ne5 Qc7 13.c4 (13.d3 Rb8) 13...Rb8; D) 8.Nc3 D1) 8...a6 9.Ne4 Ne4 10.Be2 Bc5 11.0–0 0–0 12.Bd3 (12.bc6 bc6 13.Ba3 Ba3) 12...ab5 (12...f6 13.bc6 bc6) 13.ab5 Ra1; D2) 8...Be7 9.Ne4 (9.Be2) 9...de4 10.Ne5 c5 (10...Bd7 11.Bc4 0–0 12.0–0 Qc7 13.d3 Rad8) 11.Bc4 (11.Be2) 11...0–0 12.0–0 Nd5 (12...Ne8 13.Bb3 a6) 13.a5 Qc7+= (13...Bf6); D3) 8...Bb4 9.bc6 bc6 10.Ne4 de4 11.Ng5 Qd5 12.Rb1 Rb8 13.Bd4 h6; D4) 8...Bd7 9.Ne4 Ne4 10.Bd3 Be7 11.0–0 0–0 12.Ne5 f6 13.Nd7 Qd7; D5) 8...Bd6 9.Ne4 de4 10.Ne5 Bd7 11.Be2 0–0 12.0–0 Be7 13.Bc4 Qe8; D6) 8...Nc3 9.Bc3 Ne4 10.Bd4 (10.Bb2 Bd7 11.Bd3 Be7 12.0–0 0–0 13.Ne5 f6) 10...c5 11.Bb2 f6 (11...c4 12.Be2 Bb4 13.Bd4 0–0) 12.Be2 c4 13.0–0 Qa5= (13...Bb4).

5.e3 Be7

6.Na3 0–0 7.c4 dc4 8.Bc4 cb5 9.ab5 b6 10.Be2 Bb7 11.Nf3 Nbd7 12.0–0 Nc5 13.d4 Nce4 14.Rc1 Rc8 15.Qa4 Ra8 16.Rfd1 Ba3 17.Ba3 Re8 18.Ne5 Nd5 19.Qb3 Nef6 20.Nc6 Bc6 21.bc6 Qc7 22.Bf3 Red8 23.e4 Ne7? 24.Be7+– Qe7 25.d5 ed5 26.ed5 Qd6 27.c7+– Rdc8 28.Qc4?? Nd7? 29.Qc6+– Qc6 30.dc6?? Nc5+= 31.Bg4 Rc7–/+ 32.Bd7 Rd8 33.Ra1? a5 34.Rab1 Nd7 35.cd7? Rcd7 36.Rd7 Rd7 37.g4 Rb7 38.Rc1 g6 39.h4 a4 40.f4 b5 41.Kf2 a3 42.Ke3 b4 43.Kd3 b3 44.Kc3 a2 45.Rd1 b2 46.Rd8 Kg7 47.f5 b1Q 48.f6 Kf6 49.Rd6 Kg7 50.h5 a1Q 51.Kd2 Qd1 (51...Qd1 52.Ke3 Qe5 53.Kf2 Qf4 54.Kg2 Qdf1; 51...Qe1 52.Kd3 Qac3) 0–1. poganinbezdom – brzek, kurnik, 2011.

6.c4 0–0 7.Na3 Bd7 8.Nf3 dc4 9.Bc4 cb5 10.ab5 a6 11.Qb3 ab5 12.Nb5 Ra1 13.Ba1 Nc6 14.0–0 Re8 15.d4 Nb8 16.Rd1 Bb5 17.Bb5 Nc6 18.Ne5 Qc7 19.Rc1 Rc8 20.Bb2 Bd6 21.Nc6 Bh2? 22.Kf1 bc6+/– 23.Rc6 Qb8 24.Rc8 Qc8 25.g3 Qa8 26.Ke2 g6 27.Bd3 Qg2 28.Bc3?? Bg3–+ 29.Be1 Ng4 30.Qc2?? Bf2 31.Kd1 Qf3 32.Be2 Qe3 33.Bf2 Nf2 34.Ke1 Ne4 35.Qc8 Kg7 36.Qc6 (36.Qc6 Qg1 37.Bf1 Qf2 38.Kd1 Qd2; 36.Qh8 Kh8 37.d5 ed5 38.Kd1 Qd2). poganinbezdom – israelflavio, kurnik, 2011.

6.c4 0–0 7.Nc3 cb5 8.ab5 dc4 9.Bc4 Bd7 10.Nf3 Qc7 11.Qb3 a6 12.0–0 Rc8 13.d3 a5 14.Rfc1 b6 15.h3 Bb4 16.Ne2 Qd6 17.Be5 Qe7 18.Ned4 Ne8 19.Qb2 f6 20.Nf5 Qf8 21.Bg3 Kh8 22.N5d4 e5 23.Ne6 Be6 24.Be6 Rd8 25.Rc8 Rc8= 26.Bc8 Nd6 27.Rc1?? Nc8–+ 28.Ne5 fe5 29.Be5 Nd7 30.Bd4 Bc5 31.Bc3 Ne7 32.h4 Nd5 33.Bd2 Qf6 34.d4 Bb4 35.Bb4 Nb4 36.Qc3 Nd5 37.Qc7 Rd8 38.Qg3 h6 39.h5 Qf7 40.Qg6 Qg6 41.hg6 N7f6 42.Rc7 Nb4 43.Rb7 Nd3 44.Rb6 Ng4 45.f3 Ne3 46.Kh2 1–0. elsh1403 – equalizer (1695), kurnik, 2011.

6.c4 0–0 7.Nc3 b6 8.Nf3 c5 9.Be2 Nbd7 10.d4 Bb7 11.0–0 h6 12.Ne5 Nh7 13.Bf3 Bf6 14.cd5 Ne5= 15.de5 Be5 16.de6 Qd1 17.Rad1 Bf3 18.gf3 fe6 19.f4 Bf6 20.e4 Bd4 21.Rd3 Rf4 22.Nd1 Bb2 23.Nb2 Re4 24.Rd7 Ng5 25.h4?! Rh4 0–1. elsh1403 – ccornel, kurnik, 2011.

6.c4 a6 7.Nc3 ab5 8.ab5 Ra1 9.Qa1 cb5 10.cd5 Nd5 11.Nd5+= Qd5 12.Bg7 Rg8 13.Bc3 b4 14.Bf6+= Bf6 15.Qf6 Qa2 16.Bd3 b3 17.Nf3+/– Rg2? 18.Qh8+– Ke7 19.Qc8 Qa1 20.Ke2 Qh1 21.Qb8 Kf6 22.Qb7 Qa1 23.Qb3 Kg7 24.Qc3 Qc3 25.dc3 f5 26.c4 e5 27.Bf5 1–0. ludice (1710) – kofie, kurnik, 2011.

6.c4 cb5 7.cb5 0–0 8.Nc3 a6 9.Nf3 Nbd7 10.Be2 ab5 11.ab5 Ra1 12.Qa1 Nb6 13.0–0 Bd7 14.h3 Nc4 15.Bc4 dc4 16.Nd4 Nd5 17.Nce2 e5–/+ 18.Nf3 Bb5 19.Ne5 Bf6 20.Rc1 Re8 21.f4 Nb4 22.Nd4 Ba6 23.Nc4 Nd3 24.Rc2 Qd5 25.Nb6 Qe4 26.Nf3 Bb2 27.Rb2 Nb2 28.Qb2 Qd3 29.Ne5 Qf1 30.Kh2 Qf2?? 31.Qa2+/– Rf8 32.Nbd7+= Bf1 33.Qd5 (33.Qd5 Bg2 34.Qg2 Qg2 35.Kg2+=) 1–0. elsh1403 – branchiale, kurnik, 2011.

6.c4 dc4 7.Bc4 0–0 8.Nc3 cb5 9.ab5 b6?? 10.Nf3?? Bb7 11.0–0 Nbd7 12.Nd4 Nc5 13.Qe2 Nfe4 14.Rfd1 Bf6 15.Nc6 Bc6 16.bc6 Qc7 17.d4 Nc3 18.Bc3 Ne4 19.Bb4 Rfd8 20.d5?? Ba1 21.Ra1 ed5 22.Bb5 a5 23.Ba3 Nc3 24.Qd3 Nb5 25.Qb5 Rac8 26.Rc1 d4 27.ed4 Rd4 28.Bb2 Rd6 29.Ba3 Rc6 (29...Rc6 30.Rd1 Re6–+) 0–1. elsh1403 – haruth (1605), kurnik, 2011.

6.Nf3 cb5 7.ab5 0–0 8.c4 dc4 9.Bc4 b6 10.Qe2 Bb7 11.0–0 Nbd7 12.Rc1 Nc5 13.Ne5 Rc8 14.d4 Ncd7 15.Ra7 Rc7 16.Nc6 Bc6 17.Rc7 Qc7 18.Bd3 Nb8 19.bc6 Nc6 20.Bb5 1–0. pcmvr – ajmcroberts (2270), net–chess.com, 2014.

6.Nf3 cb5 7.ab5 0–0 8.Be2 Nbd7 9.0–0 Ne4 10.d3 Nd6 11.c4 dc4 12.dc4 Bf6 13.Nc3 Qc7 Attacks the backward pawn on c4 14.Qb3 Nc5 15.Qc2 b6 16.Rfd1 Bb7 17.Nd4 Rfd8 18.Na4 Na4 19.Qa4 Nf5 20.Rac1 Nh4 21.g3 Ng6 22.h4 Be4 23.h5 Ne7 24.Bg4 Bd4 25.Bd4 Nf5 26.Bf5 Bf5 27.c5 bc5 28.Rc5 Qb7 29.Rdc1 Bh3 30.Rc6 Bg4 31.Bg7 Bh5 32.Bf6 (32.Bf6 Qb8 33.Bd8 Qd8 34.Qa6+–) 1–0. CountFromHolland – Ontiveros, playchess.de, 2004.

6.Nf3 cb5 7.ab5 a6 8.Be2 0–0 9.0–0 Bd7 10.Nc3 Qb6 11.Ne5 Bd6 12.Na4 Qd8 13.Nd7 Nbd7 14.ba6 ba6 15.Nc3 a5 16.Ba3 Ba3 17.Ra3 Nc5 18.Qa1 Nce4 19.d3 Nc3 20.Qc3 Qc8 21.Rfa1 Qc3 22.Rc3 Rfb8 23.g3 g6 24.Bf3 a4 25.Rca3 Rb4 26.c3 Rb2 27.Ra4 Ra4 28.Ra4 Nd7 29.c4 Nc5 30.Ra8+/– Kg7 31.d4?? Nd3–/+ 32.cd5 ed5?? 33.Bd5+– Nf2 34.Ra7 Ng4 35.Rf7 Kh6 36.Rf4?? Ne3?? 37.Rh4 Kg7 38.Rh7?? Kh7–+ 39.Be4 Kh6 40.d5 1–0. druhynejhorsi (1760) – mowmidonek (1640), kurnik, 2011.

6.Nf3 cb5 7.ab5 b6 8.d3 0–0 9.Nc3 Bb7 10.Na4 Nbd7 11.c4 Nc5 12.Nc5 Bc5 13.d4? Bb4–+ 14.Nd2 dc4 15.Bc4 Bg2 16.Rg1 Bb7 17.Kf1 g6 18.e4 Ne4–+ 19.Ne4 Be4 20.d5 Bc5?? 21.de6= Qd1 22.Rd1 h5 23.ef7 Kh7 24.Re1 Bf5 25.Re5 Rad8 26.Kg2 Rd2 27.Bc3?? Rf2 28.Kg3?? Rc2 29.Re8 Rc3 30.Kg2 Rc4 31.Rf8 Bf8 32.Re1 Kg7 33.Re8 Kf7 34.Ra8 Be4 (34...Be4 35.Kg3 Ba8–+) 0–1. j1a9n55 – bratek55 (1650), kurnik, 2011.

6.Nf3 Qb6 7.c4 cb5 8.ab5 0–0 9.Nc3 (9.Bd4 Qd8+=) 9...dc4 10.Bc4 Nbd7 11.d4 Qc7 12.Qb3 Nb6 13.Be2 Nfd5 14.0–0 Bd6 15.Ne4 Rd8 16.Rfc1 Qb8 17.Nd6 Qd6 18.Ba3 Qd7 19.Nd2 Qe8 20.Ne4 (20.Bc5!?+/–) 20...e5+= 21.Nd6 Qe6 22.de5 Qe5 23.e4 Nf4 (23...f5 24.ed5 Qe2 25.Bc5+–) 24.Qf7+– Kh8 25.Bf3 Be6 26.Qc7 (26.Qe7 Nd3 27.Bg4 Nc4 28.Nc4 Bc4 29.Qe5 Ne5+–) 26...Qg5 (26...Nc4!? 27.Rd1 Kg8+=) 27.Rd1 h6 (27...Bb3 28.Rdb1 Bg8 29.Qc5+–) 28.Nf7 (better is 28.Qc5!? Nh3 29.Kf1+–) 28...Bf7+/– 29.Qf7 Qb5?? (better is 29...Nh3 30.Kf1 Qb5 31.Be2 Rd1 32.Rd1 Ng5 33.Bb5 Nf7+/–) 30.Qf4 Rd1 31.Rd1 Qb3 32.Bc1 Kg8 33.e5 Rf8 (33...Re8 34.Qg3 Kh8 35.Qg6+–) 34.Qd4 Kh8 (34...Re8 35.Bb2 (worse is 35.Bb7 Re5 36.Be3 Qc2+–) 35...Qf7 36.Ra1+–) 35.Bb7 Qc2 36.Be4 Qb3 37.Bb2 Nc4 (37...Qe6 38.Qd6 Qe8 39.Qc7+–) 38.Ba1 Na3 (38...Ne5 39.Rf1 Qe6+–) 39.e6 1–0. Raue,Thorsten (1840) – Janssen,Guido (1805), Verbandsklasse B Muensterland, 2006.

6.Nf3 Qb6 7.c4 Nbd7 8.cd5 cd5 9.Be2 Qc7 10.0–0 b6 (10...e5 11.a5=) 11.d3 Bb7 12.Qd2 Rc8 13.Rc1 Nc5? (better is 13...Qd8+=) 14.d4+– Nce4? (14...Nfe4 15.Qd1 Bf6+–) 15.Rc7 Nd2 16.Rc8 Bc8 17.Nbd2 0–0 18.Ne5 Bd6 (18...Bb4 19.Nb3 Bb7 20.Ba3 Ba3 21.Ra3+–) 19.Ba3 Ba3 20.Ra3 Nd7 21.Nc6 f6 22.Na7 Bb7 23.Rc3 e5 (23...Ra8 24.Rc7 Ra7 25.Rd7 Ra4 26.Rb7+–) 24.Rc7 1–0. Fritz 10 – NN, 2007.

6.f4 cb5 7.ab5= Bd7 (7...0–0 8.Nf3=) 8.Nf3 Qb6 (8...0–0 9.Be2=) 9.Bd4+= Qc7 (9...Bc5!?+=) 10.Ra7+/– Ra7 11.b6 Qc8 12.ba7 Nc6 13.Nc3 Qa8? (better is 13...Nd4!? 14.Nd4 Qa8+/–) 14.Nb5+– Nd4?? (better is 14...Bd8 15.Nd6 Kf8+–) 15.Nc7 (15.Nc7 Kf8 16.Na8+– (16.ed4 Qa7 17.Nb5 Qb6+=); 15.ed4?! 0–0=; 15.Nfd4?! 0–0+=; 15.Nbd4?! Qa7 16.Be2 0–0=) 1–0. pierre – ocis, internet, 2010.

6.f4 Ne4 7.Nf3 (7.Bg7 Rg8 8.Bb2 Bf6+=) 7...0–0 8.Be2 Bd7 (8...Bh4 9.g3 Bf6 10.Ne5+=) 9.c4 (9.0–0 a6=) 9...Bb4 (9...dc4!? 10.Bc4 Nd6 11.bc6 Bc6+= (worse is 11...Nc4 12.cb7 Nb2 13.Qc2+/–; 11...Nc6?! 12.Be2+=)) 10.0–0= Qa5 (10...dc4 11.Bc4 cb5 12.ab5=) 11.Qc2 Bc5 (11...Nd6 12.c5 Ne4 13.Ng5+=) 12.Kh1 (12.Bd3 f6+/–) 12...Qb6 (12...Rc8!?+=) 13.a5 Qc7 14.d3 (14.cd5 cd5 15.d3 Nf6+/–) 14...Nf6 (14...Nd6 15.d4 Bb4 16.cd5 Ba5 17.Ng5+/–) 15.Bf6 gf6 16.d4 Be7 (16...Bb4 17.b6 Qd8 18.Qb3+/–) 17.b6 (better is 17.cd5 ed5 18.Bd3+/–) 17...ab6?? (better is 17...Qd8 18.ba7 Ra7+/–) 18.ab6+– Qb6 (18...Qf4 19.Ra8 Qe3 20.c5+–) 19.Ra8 f5 (19...dc4 20.Nbd2+–) 20.c5 (20.c5 Qc7 21.Qb3+–) 1–0. Kucharkowski,Jens – Wuendrich, Freital, 1982.

6.h4 Nbd7 7.g4 a6 (better is 7...e5!?–/+) 8.bc6 bc6 9.a5 (better is 9.g5!? Ne4 10.Bg7+=) 9...0–0 10.d3 Bb7 11.g5 Ne8 12.Qg4 c5 13.d4 Nd6 14.dc5 Nf5 15.Bd3 g6 (15...Bc5!? 16.Nf3 d4 17.Bd4 Bf3 18.Qf3 Bd4 (worse is 18...Nd4 19.ed4 Bb4 20.c3 Ba5 21.Qe4+=) 19.ed4 Nd4+=) 16.Nf3= Bc5 17.h5 Rb8 18.Nbd2 Bc6 (18...Re8 19.Nb3 Bd6 20.Qh3+=) 19.Bc3 (19.Nb3 Qc8+/–) 19...Re8? (better is 19...Bb5!?+=) 20.hg6 fg6 21.Ba6 Bb5 22.Bb5 Rb5 23.Nb3 Ba7 24.Qh3 e5?? (better is 24...Re7 25.Nbd4 Nd4 26.Nd4 Bd4 27.ed4 e5+/–) 25.Qh7+– Kf8 26.Qg6 d4 27.Qf5 (27.Rh8 Ke7 28.Rh7 Ng7 29.Rg7 Kf8 30.Rf7) 27...Ke7+– 28.ed4 (28.Nbd4 ed4 29.Rh7 Kd6 30.Qb5 Qc8 31.Bb4 Bc5 32.Nd4 Re5+–) 28...Kd6 (28...Qc7 29.Bb2 Kd8 30.de5+–) 29.de5 Kc7 30.Rh7 Kc8 31.0–0–0 Re7 32.e6 (better is 32.g6 Bf2 33.Qe4+–) 32...Rf5 33.ed7 Kc7 (33...Qd7 34.Rd7 Kd7 35.g6 Rf3 36.g7+–) 34.Re7 Rf3 (34...Rf3 35.Be5 Kb7+–). g_man1978 – dusterstar, gameknot.com, 2011. (=1.e3 d5 2.a4 c6 3.b4 Nf6 4.Bb2 e6 5.b5 Be7)

6.Nf3 0–0

7.Na3 Nbd7 8.c4 Bd6 9.Nc2 Qc7 10.d4 e5 11.c5 Qa5 12.Nd2 Bb8 13.Be2 ed4 14.Bd4 Re8 15.0–0 Qc7 16.f4 Qd8 17.a5 Ne4 18.Ne4 de4 19.b6 ab6 20.ab6 Ra1 21.Qa1 Qh4 22.g3 Qh6 23.Rf2 Nf8 24.Bf1 Ne6? 25.Bg2 Nd4+= 26.Qd4 Bf5 27.Qd1 Qe6 28.Nd4 Qd7 29.Rd2 Bg4 30.Qc2 Qe7 31.h3 Bf3 32.Nf3 ef3 33.Bf3 Qe3 34.Kg2 Qe1 35.Re2 Re2 36.Qe2 Qe2 37.Be2 Kf8? 38.Kf3 Ke7 39.Ke4 Ke6? 40.Bg4+– Ke7 41.Bc8 Kd8 42.Bb7 Kd7 43.g4 f6 44.h4 g6 45.Ba6 h6 46.Bd3 Ke6 47.Bc4 Kd7 48.Bf7 g5 49.hg5 fg5 50.fg5 hg5 51.Kf5 Bf4 52.Be6 Kd8 53.Kf6 Be3+/– 54.b7 Kc7 55.Bc8 Bc5 56.Kg5 1–0. poganinbezdom (1655) – lobatov (1685), kurnik, 2011.

7.Nc3 a6 8.Be2= ab5 (8...Nbd7 9.bc6 bc6 10.Rb1+=) 9.ab5 Ra1 10.Qa1 cb5 (10...c5 11.0–0=) 11.Nb5 Bd7 12.Ne5 (12.0–0 Bb5 13.Bb5 Nc6=) 12...Bc6 (12...Bb5 13.Bb5 Qc7 14.c4=) 13.0–0+= Nbd7 14.Nc6 (14.Rb1 Ne5 15.Be5 Qd7+=) 14...bc6= 15.Nd4 Qc7 16.f4 (16.Qa4 Rc8=) 16...Re8 (16...Rb8 17.Rb1=) 17.Nf3 (17.Qa4 Rc8=) 17...Bf8 (17...Rb8 18.c4=) 18.Ne5 (18.c4 Rb8=) 18...Be7 (18...Rb8 19.Nd7 Nd7 20.c4=) 19.Nd7 (19.Qa6 Rc8=) 19...Qd7 20.Be5 Rc8 (20...Rd8 21.f5=) 21.Rb1 Ne8 (21...Qe8 22.c4=) 22.Rb3 (22.Qa6 Nd6=) 22...f6 23.Bc3 (23.Bb8 Bd6 24.Qb2 Qd8 25.Bd6 Nd6=) 23...Nd6 24.d3 Nf5 25.Bd2 c5 (25...Bc5 26.d4 Bd6 27.Qa4=) 26.Qb1 (26.Qa6 Nd6=) 26...Bd6 (26...c4 27.Rb7 Qd8 28.Bg4=) 27.Rb7 Qe8 (better is 27...Rc7!? 28.Rb8 Rc8=) 28.g4 Nh4 29.Be1 (29.Qb5 Qb5 30.Rb5 Rc6=) 29...Ng6 30.Bg3 (30.Qb6 Rd8=) 30...d4 (better is 30...Ra8=) 31.Bf3 (better is 31.Qb6!? Rb8 32.Rb8 Qb8 33.Qb8 Bb8 34.Kf2=) 31...de3–/+ 32.f5 (32.Qe1 Bf4 33.Bf4 Nf4 34.Qe3 Qa4–/+) 32...Bg3 33.hg3 Ne5 34.Be4 (34.Be2 Nc6 35.c3 ef5 36.gf5 Qe5–+) 34...Ng4 35.Kf1 ef5 36.Bf5 Nh6?? (36...e2 37.Ke1 Qe5 38.Bg4 Qg3 39.Ke2 Qg2 40.Kd1 Qg4 41.Ke1 Re8 42.Kd2 Re2 43.Kc3 Qd4 44.Kb3 c4 45.dc4 Re3 46.Ka2 Qc4 47.Rb3–+) 37.Qb3?? (better is 37.Bc8 Qc6 38.Kg1+–) 37...Kh8?? (better is 37...c4 38.Rg7 Kg7 39.Qb7 Nf7 40.Qc8 Qe5–+) 38.Bc8= Qc6 (38...Qc8?? 39.Rb8 Qg8 40.Rg8 Ng8 41.Qc4+–) 39.Ke2 Qg2 40.Ke3 Qg3 41.Kd2 Qf4 42.Ke2 Qh2 43.Ke3?? (better is 43.Kd1+–) 43...Qg3= 44.Kd2 Qf4 45.Ke2?? (45.Ke1 Qg3 46.Kd1 Qg1 47.Kd2 Qg5 48.Kc3 Qe5 49.Kc4 Qd4 50.Kb5 Qe5+–) 45...Qh2 46.Kf3 (46.Kd1 Qg1 47.Kd2 Qg5 48.Kc3 Qe5 49.Kc4 Qd4 50.Kb5 Qd8+–) 46...Qh1 47.Ke2?? (better is 47.Kf2+–) 47...Qh2= 1–0. Riveline – Antonni, Val Thorens, 1993.

7.Nc3 Bd6 8.Be2 +=.

7.c4 c5 8.Be2 b6 9.0–0 Nbd7 10.Nc3 Bb7 11.d4 Qc7 12.cd5 Nd5 13.Nd5 Bd5 14.dc5 Nc5 (14...Qc5? 15.Ba3 Qa3 16.Ra3 Ba3 17.e4 Be4 18.Qd7+–; 14...bc5?! 15.Qc2=) 15.Nd4 Bd6 16.h3 Rfd8 17.Bf3 Bf3 18.Qf3 Nd3 19.Ba3 Ne5 20.Qe4 Ba3 21.Ra3 Qd6 22.Rc3 Nd7 23.Nc6 Re8 24.Rd3 Qc7 25.Rd4 Nc5 26.Qh4 e5 27.Rd5 Re6 28.Rfd1 f6? (better is 28...e4+=) 29.Qc4+– Kf7 30.Nd8 Rd8 31.Rd8 Qe7 (31...e4+–) 32.Qh4 f5 33.Qh7 Rf6 (33...Kf6+–) 34.Qh5 g6 (34...Rg6 35.Qf5 Qf6+–) 35.Qh8 (35.Qh7 Ke6 36.Qg8 Rf7 37.R8d6 Qd6 38.Qg6 Rf6 39.Qe8 Qe7 40.Rd6 Kd6 41.Qc6#) 35...Re6 36.Rg8 Qf6 (36...Rd6 37.Qh7 Ke6 38.Qg6 Kd7 39.Rd6 Kc7 40.Rc6 Kb7 41.Rb6 ab6 42.Qc6 Ka7 43.Ra8#) 37.Qh7 (37.Qh7 Qg7 38.Qg7#) 1–0. Schiefelbusch,Dirk (2105) – Simanowski,Mio (1855), Dortmund GER, Sparkassen Open, 2012.

7.Bd3 cb5 8.ab5 b6 (8...Nbd7!?=) 9.0–0+= Bb7 10.Nc3 (10.Bd4 a5=) 10...Nbd7 (10...a5 11.ba6 Na6 12.Qe2=) 11.Nd4 (11.Qe2 Nc5=) 11...Nc5= 12.Be2 e5 (12...Qc7 13.Ra2=) 13.Nf5+= d4 14.Na4 Na4 (14...de3!? 15.fe3 Re8+=) 15.Ra4+/– Bc5 16.ed4 ed4 17.Bd4 (17.Bf3 Bf3 18.Qf3 Qd7 19.Nd4 Bd4 20.Bd4 Qb5+/–) 17...Bd4 18.Rd4 (18.Nd4 Ne4+/–) 18...Qc8?? (better is 18...Qc7+/–) 19.Ne7+– (19.Ne7 Kh8 20.Nc8 Rfc8 21.Bc4+–) 1–0. Wall,Bill – KingSpasski, chess.com, 2010.

7.Bd3 Qc7 8.Na3 (8.Be5 Qb6=) 8...c5 (8...Nbd7 9.0–0+=) 9.c4= Rd8 (9...Nbd7 10.Qc2=) 10.Be5 Bd6 (10...Qb6 11.0–0=) 11.Bf6+= gf6 12.Nh4 (12.Qc2 h6+=) 12...f5 (12...Bh2? 13.b6 ab6 14.Nb5+–) 13.0–0 (better is 13.Qh5!?=) 13...Bh2–/+ (13...Bh2 14.Kh1 Be5–/+) 0–1. AbstractPoetic – vish_17 (1605), internet, 2007.

7.Bd3 Nbd7 8.0–0 +=.

7.d4 Bb4 8.Nbd2 +=.

7.d4 Bd7 8.Bd3 (8.Ba3 Ne4=) 8...c5 (8...Bb4 9.Nbd2+=) 9.c4 (9.dc5 Qc7=) 9...dc4 10.Bc4 a6 (10...cd4 11.Bd4 Qa5 12.Nbd2+=) 11.0–0 cd4 (11...ab5 12.ab5 Ra1 13.Ba1+=) 12.Qd4+= ab5 13.ab5 Ra1 14.Ba1 Bc8 (14...Qa5 15.Nbd2+=) 15.Qf4+= Bd6 (15...Bd7 16.Be5+/–) 16.Bf6+/– gf6 17.Qh6 Re8? (better is 17...Qe7!?+/–) 18.Bd3+– Do you see the mate threat? 18...f5 19.Ng5 Threatening mate... how? 19...Qd7 (19...Qc7 20.b6 (20.Qh7?! Kf8+–) 20...Qd7 21.Bb5+–) 20.Bf5 ef5 21.Qh7 Kf8 22.Rd1 f4 (22...Bh2 23.Kh2 Qc7 24.g3 Be6 25.Ne6 Re6 26.Qh8 Ke7+–) 23.Rd6! Qf5 (23...Qd6 Deflection from f7 24.Qf7 The nicest combinations are those leading to mate) 24.Qh6 Ke7 The mate threat is Qxb1 25.Nc3 Be6 (25...Bd7 26.e4 Qg5 27.Rd7 Nd7 28.Qg5 Kf8+–) 26.Re6! fe6 (26...Qe6 27.Ne6) 27.Qg7 Kd6 (27...Kd8 28.Nf7 Qf7 29.Qf7 fe3 30.Qb7 ef2 31.Kf2 Nd7+–) 28.Nge4 Qe4 29.Ne4 Kd5 30.Qd4 1–0. Zulauff,Harri – Nittschalk,Karl, TT–18 ETC, 2005.

7.d4 Nbd7 8.Bd3 c5 9.0–0 c4 10.Be2 Ne4 11.Nfd2 Ndf6 12.f3 (12.Ne4 Ne4 13.Ba3 Ba3 14.Ra3 a6=) 12...Nd6 (12...Nd2 13.Nd2 a6 14.Bc3+=) 13.Re1 (13.e4 Nd7=) 13...Qc7+= 14.Nf1 (14.e4 de4 15.fe4 Nfe4 16.Ne4 Ne4 17.Bc4 Qc4 18.Re4 a6+=) 14...Qb6 (14...Bd7 15.Ba3–/+) 15.Nc3 Nf5 16.a5 Qd8 17.e4 de4 18.fe4 Nd4 (18...Qd4!? 19.Qd4 Nd4+=) 19.Bc4 e5 20.Ba3 Ba3 21.Ra3 Nc2?? (better is 21...Qe7 22.Ra2 Qc5–/+) 22.Qc2+– Qd4 23.Ne3 Ng4 24.Ncd5 Be6 25.Rd3 Qc5 26.h3 Bd5 (26...Ne3 27.Ne3 Rac8+–) 27.Bd5 (27.Rd5?! Ne3 28.Rc5 Nc2+=; 27.ed5?! Ne3 28.Ree3 Rac8+–; 27.hg4?! Bc4 28.Qc4 Rac8+–) 27...Qc2 28.Nc2 Nf6 29.Bb7 Rad8 (29...Rab8 30.a6 Nh5 31.Ra3+–) 30.Red1 Rde8 (30...Rd3 31.Rd3 Ne8 32.Bc6+–) 31.g4 Re7 32.Bc6 g5 33.Ne3 h5 34.Kg2 (34.Nf5 Re6 35.gh5 Nh5+–) 34...Rc7 (34...Re6 35.Nf5+–) 35.Rd6 Ne8 36.Rd8 Nf6 37.Nf5 hg4 (37...Rd8 38.Rd8 Kh7+–) 38.Rf8 1–0. Gaggiottini,M – Barni,N, 1995. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 e6 4.b5 c6 5.a4 Be7 6.e3 0–0)

7.Nd4 c5 8.Nf3 b6 9.c4 Bb7 10.a5 Nbd7 11.d4 dc4 12.Bc4 cd4 13.Bd4 Bb4 14.Bc3 Qe7 15.0–0 Rad8 16.Qe1 Bc3 17.Nc3 Qc5 18.a6?? Bf3–+ 19.gf3 Qc4 20.Rc1 Qh4 21.Ne4 Ne4 22.fe4 Qe4 23.Qe2 Nc5 24.f3 Qh4 25.Qg2 Rd5 26.e4 Rg5 0–1. j1a9n55 – bratek55 (1670), kurnik, 2011.

7.Be2 a6 8.Nc3 Bd7 9.Ne5 Be8 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Nb5 Nc6 14.f4 Ne5 15.Be5 Bc6 16.Rb1 Ne8 17.Nd4 Bf6 18.Nc6 bc6 19.Rb7 Nd6 20.Bf6+= Qf6 21.Qf6 gf6 22.Rd7 Ne4 23.d3 Nc3 24.Bh5 c5 25.Rc7 Na4 26.Kf2 f5 27.Ke2 Nb6 28.Rc5+– Rc8 29.Rc8 Nc8 30.c4 dc4 31.dc4 Kf8 32.Kd3 Ke7 33.Kd4 f6 34.Kc5 Nd6 35.Bf3 Kd7 36.Kb4 Kc7 37.c5 Nc8 38.Kc4 Ne7 39.Kd4 Nc8 40.h3 h6 41.e4 fe4 42.Be4 Na7 43.g4 Kd7 44.h4 Nb5 45.Kc4 Nc7 46.g5 fg5 47.fg5 hg5 48.hg5 Ke7 49.Kd4 Na6 50.Kc4 Nc7 51.c6 Kd6 52.g6 Ne8 53.Kb5 Kc7 54.Kc5 Ng7 55.Bg2 Ne8 56.Bh3 1–0. Lanca,Ivan (2105) – Perik,Alois (1855), Ostrava op–B, 2003.

7.Be2 cb5 8.ab5 Bd7 9.c4 dc4 10.Bc4 a6 11.Nc3 Qb6 12.0–0 a5 13.Nd4 e5 14.Nf3 Bg4 15.h3 Bf3 16.Qf3 Nbd7 17.Nd5 Nd5 18.Qd5 Rad8 19.Be5?? Nf6?? 20.Qf3+– Rd2 21.Bd4 Bc5 22.Bf6 gf6 23.Qg4 Kh8 24.Rad1 (24.Rad1 Rfd8 25.Rd2 Rd2 26.Bf7+–) 1–0. elsh1403 – mitussa, kurnik, 2011.

7.Be2 cb5 8.ab5 Bd7 9.c4 dc4 10.Bc4 Ne4 11.0–0 Nd6 12.Qb3 a6 13.Nc3 Qb6 14.Na4 Qd8 15.Nc5 Nc4 16.Nd7 Nd7 17.Qc4 ab5 18.Ra8 Qa8 19.Qb5 Nc5 20.Ra1 Qc8 21.d4 Ne4 22.Ne5 Rd8 23.Nc4 Nd6 24.Nd6 Bd6 25.Ra7 Rd7 26.e4 f6 27.g3 Qc6?? 28.Qc6 bc6 29.Rd7 1–0. vik – smugo, Internet, 2001.

7.Be2 b6 8.0–0 c5 9.a5 ba5 10.Bc3 Bb7 11.Ba5 Qc8 12.c4 Nbd7 13.Nc3 Nb6 14.d3 Rd8 15.Qc2 d4 16.ed4 cd4 17.Na4 Bc5 18.Nc5 Qc5 19.Qd2 Qf5 20.Rfc1+/– Nfd7 21.Nd4 Qg6 22.Nc6 Ne5?? 23.Ne7+– (23.Ne7 Kf8 24.Ng6 hg6 25.Qb2+–) 1–0. pcmvr (2870) – rr (2400), net–chess.com, 2008.

7.Be2 Bd7 8.0–0 a6 9.Ne5 =.

7.Be2 Bd7 8.0–0 cb5 9.ab5 Qc8 10.Ne5 Be8 11.c4 Nbd7 12.Nd7 Bd7= 13.Qb3 dc4 14.Qc4 Qd8 15.Nc3 Rc8 16.Qd3 Ra8 17.Rfc1 Qe8 18.e4 e5 19.Nd5+– Nd5 20.Qd5 Bf6 21.Qb7 Rb8+/– 22.Qa7 Bb5 23.Bb5 Qb5 24.Bc3 Rfc8 25.Qa6 Qd7 26.Bb2 Rd8 27.Bc3 h6 28.Qa4 Qb7 29.g3 Ra8 30.Qb4 Qd7 31.Ra8+/– Ra8 32.Ra1 Rc8 33.Qb1 Qc6 34.Qc2 Be7 35.Qa4 Qc5 36.Rb1 f6 37.Bb4 Qc7 38.Be7 Qe7 39.Qb3 Kh7+= 40.Qf3 g6 41.h4 h5 42.g4 hg4+= 43.Qg4 Rg8 44.f4 ef4 45.Qf4 g5 46.Qf5 Kh6+/– 47.Kf2 gh4 48.Qf4 Rg5 49.Qh4 Kg6 50.Rh1 Qc5 51.Kf1 Qc4 52.Ke1 Qc1 53.Kf2 Qd2= 54.Kf1 Qd1 55.Kf2 Qd2 ½–½. Melzig,Ernst – Buss,Richard, Wch Seniors Bad Liebenzell, 1996.

7.Be2 Bd7 8.d3 cb5–/+ 9.ab5 Bb5 10.0–0 Nbd7 11.Nbd2 Qc7–/+ 12.Qb1 a6 13.c4 dc4 14.dc4 Bc6 15.Nd4 Rac8 16.N2f3? Be4–/+ 17.Qa2 Nb6 18.Ng5 Bf5 19.c5? Bc5 20.Rac1? Qe7 21.Nb3 h6 22.Nf3 Rfd8?? 23.Nc5= Rc5 24.Ba3 Ne4 25.Bc5 Nc5 26.Qa5 Nb3? 27.Qb6+– Nc1 28.Rc1 Rd6 29.Qc5 Qd7 30.Nd4 Be4 31.f3 Bg6 32.Nb3 Rc6 33.Qa3 Rc1 34.Qc1 b5 35.Kf2 Qd6 36.Qc3 Qh2+= 37.Qc8 Kh7 38.Qa6 ½–½. Lin,Ang Keng – Sag,Andrew, University Open, 2003.

7.Be5 Nbd7 +=.

7.Be2 Nbd7

8.0–0 c5 9.c4 b6 10.d4 Bb7 11.Nbd2 Rc8 12.Rc1 cd4 13.ed4 dc4 14.Nc4 Nd5 =. Grund – Salamon, corr ICCF 1974.

8.0–0 Qc7 9.d4 =.

8.0–0 Ne4 9.d3 Nec5 10.c4 Nf6 11.Ne5 Qe8 12.f4 Kh8 13.Rf3 Kg8 14.Rg3 Kh8 15.Bh5 g6 16.Bf3+/– Bd6?? 17.Ng4+– 1–0. Wall,Bill – Chesster, Internet, 2002.

8.0–0 Re8 9.d4 Bd6 10.c4 Ne4 11.c5 Bc7 12.Nbd2 f5 13.Qc2 Qf6 14.Nb3 g5 15.Nfd2 Qh6 16.g3 Ndf6 17.Ne4 Ne4 18.f4 Kh8 19.Bf3 Nf6 20.Rf2 Bd7 21.Qe2 Rg8 22.Kf1 Qg6 23.Ke1 g4 24.Bg2 Qe8 25.Bf1 Ne4 ½–½. Ebert,Lutz (1765) – Manke,Karsten (1835), Mecklenburg VP LL1, 2006. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 Be7 5.e3 c6 6.a4 0–0 7.Be2 Nbd7)

8.0–0 Re8 9.d4 Nf8 10.Nbd2 Qc7 11.c4 Ng6 12.Qb3 Bd6 13.Bd3 Bd7 14.Rfc1 Rac8 15.c5 Bf8 16.b6 Qb8 17.ba7 Qa7 18.a5 Qb8 19.Ra4 Qc7 20.Bc3 Ra8 21.Rb1 Bc8 22.a6 ba6+= 23.Ba5 Qe7 24.Rb4 Nd7 25.Qa4+/– Nc5 26.dc5 Qc5 27.Rb6 Bd7 28.Rb7 Ra7 29.Bb4 Rb7 30.Bc5 Rb1 31.Bb1 Bc5 32.Bg6 hg6 33.Ne5 (33.Ne5 Rd8 34.Nd7+–; 33.Qa6?! Bd6+–) 1–0. Kjaerstad,Eivind J – Fuernes,T, corr NPSF, 1991.

8.0–0 Ne8 9.c4 dc4 10.Bc4 cb5 11.ab5 Nd6 12.Be2 f5 13.d4 Nf6 14.Nc3 a5 15.d5 ed5 16.Nd5+= Nd5 17.Qd5 Nf7 18.Bc4 Qd5= 19.Bd5 Kh8 20.Rfc1+/– Bd6 21.Ba3 Ba3+= 22.Ra3 Nd6 23.Rca1 Nb5 24.Ra5 Ra5 25.Ra5 Nc7 26.Bb3 g6 27.h3 Kg7 28.Re5 Re8 ½–½. Meyer,Frank (2035) – Zimmermann,Manfred (1715), Wichern op 6th, 2001.

6.Nf3 a6

7.Na3 ab5 8.ab5 0–0 9.Be2 Bd7 10.0–0 Qb6 11.Bd4 c5 12.Bf6 Bf6 13.d4 c4?? 14.Qc1?? Bb5?? 15.Rb1 Ra5 16.Qb2 c3? 17.Qb3 Qa6?? 18.Nb5+– Nc6 19.Nc3 Qa7 20.Qb7 Qb7 21.Rb7 Rc8 22.Nb5 h6 23.Nd6 Rca8 24.Rfb1 Ra2 25.Bd3 g6 26.Nf7 Na5 27.Rc7 Bg7 28.Bg6 Nc4 29.N7e5 (29.N7e5 Ne5 30.de5+–) 1–0. poganinbezdom – szybciorr, kurnik, 2011.

7.Nc3 0–0 =.

7.Nc3 ab5 8.ab5 Ra1 9.Qa1 0–0 10.Be2 Bd7 11.0–0 Ne4 12.Ne4 de4 13.Ne5 Bf6 14.Qa4 c5? (better is 14...cb5!? 15.Qe4 Bc6 16.Nc6 bc6 17.Bf6 Qf6+/–) 15.Qe4+– b6 16.Ra1 Qe8 17.Bd3 g6 18.Ra7 (18.Ra8 Bb5 19.Qf4 Kg7+–) 18...Bg7 (better is 18...Bb5 19.Qf4 Be5 20.Qe5 f6+–) 19.Qf4 f6 20.Nd7 Nd7 21.Qc7 Rf7 22.Qc6 Kf8 (22...Bf8 23.Ra8 Qe7 24.Bc4+–) 23.Ra8 1–0. pcmvr (2850) – croach (2320), net–chess.com, 2011.

7.c4 ab5 8.cb5 cb5 9.Bb5 Nc6 10.Ne5 =.

7.c4 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 0–0 (10...cb5 11.Bb5 Bd7 12.Nc3=) 11.0–0 (11.Nc3 Nbd7+=) 11...cb5= 12.Bb5 Qa5 13.Nc3 Bd7 14.Qb3 Bb5 15.Nb5 Nc6 16.Rb1 Ne4 Exerts pressure on the backward pawn 17.d4 (17.Qc2 Nc5=) 17...Rb8 (17...Ra8 18.Qd3=) 18.d5 (better is 18.h3=) 18...Nd8? (18...Nc5!? 19.Qb2 Bf6=) 19.d6 Bd6?? (19...Nd6 20.Be5 Decoy; 19...Bd6 20.Nd6 Combination) 20.Nd6+– Nd6 21.Be5 Qa6 (21...Qc5 22.Qd1 Rc8 23.Bd6+– (23.Qd6?! Qc1 24.Qd1 Qd1 25.Rd1 f6+–)) 22.Qd1 (22.Rd1 Rc8 23.Bd6 b5+–) 22...Rc8 (22...Nc6 23.Ra1 Qb6 24.Bd6+–) 23.Bd6 f6 (23...Nc6 24.Ng5 h6 25.Ne4+–) 24.Bb4 (24.Bc7 Nf7 25.Qd7 Ra8+–) 24...Qc6 (24...e5 25.Qd5 Qe6 26.e4+–) 25.Nd4 (25.Ba5 Nf7+–) 25...Qc4 (25...Qd5 26.Qg4+–) 26.Bd2 (26.Ba3 Qd5+–) 26...Qa6 (26...Nc6 27.Rc1 Qd5 28.Qg4+–) 27.Qh5 (27.h3!? Qd3+–) 27...Nf7 28.Qb5 Qb5 29.Rb5 (29.Nb5 Ne5+–) 29...e5 (29...Nd6 30.Rb1 e5 31.Nb5+–) 30.Nf3 (30.Nf5 Rc7+–) 30...Nd6 31.Rb1 Rc2 32.Kf1 Ne4 (32...b5 33.Bb4 Ne4 34.Be1+–) 33.Ke2 Nc3 (33...Nd6 34.Ra1+–) 34.Kd3 Nb1 35.Kc2 Nd2 36.Nd2 Kf7 37.Kd3 Ke6 38.Kc4 Kd6 39.e4 g6 (39...Kc6 40.g4+–) 40.g3 (40.Kb5 Kc7+–) 40...h6 (40...Kc6 41.Nf3+–) 41.Nf3 f5 (41...g5 42.Kb5+–) 42.ef5 (42.Nh4!? fe4 43.Ng6 b6+–) 42...gf5 43.Kb5 f4 (43...Kd5 44.Kb6+–) 44.gf4 ef4 45.Kb6 Kd5 46.Kb7 Ke4 1–0. bridlingtonbrummie – Onion Custard, ChessWorld.net, 2009.

7.c4 Bd7 8.Nc3+= Bb4 (8...0–0 9.Bd3+=) 9.Qb3+/– Bc3 (9...Qe7 10.Bd3+/–) 10.Bc3 0–0 11.Be2 (11.Bd3!?+/–) 11...dc4= 12.Bc4 Ne4 (12...ab5 13.Bd3=) 13.Bb2 (13.0–0 Nc3 14.Qc3 ab5 15.ab5 Ra1 16.Ra1 cb5=) 13...Be8 (13...ab5 14.ab5 Ra1 15.Ba1 cb5 16.Bb5 Qa5=) 14.Rd1?? (better is 14.Ra3!?+/–) 14...Nd7 (14...ab5 15.ab5 cb5 16.Bb5=) 15.0–0 (15.ba6!? b5 16.Be2+/–) 15...ab5+= 16.ab5 Ndc5 17.Qc2 cb5 18.Be2 Rc8 (18...b4!? 19.d4 b3+=) 19.d4 (19.Rc1 Nd6=) 19...Na4= 20.Qe4 Nb2 21.Rb1 (21.Ra1 Bc6 22.Qb1 Nc4+=) 21...Bc6+= 22.Qf4 (22.Qc2 Nc4 23.Qb3 Be4–/+) 22...Nc4 23.Rfc1 Bf3 24.Bf3 Nd2 (better is 24...Qd7+=) 25.Rc8? (better is 25.Bb7 Rc4 26.Rc4 bc4 27.Rb5+=) 25...Qc8–+ 26.Rd1 Nf3 (26...Qc2 27.Bg4–/+) 27.Qf3 (27.gf3 Qc2 28.Ra1 b4–/+) 27...Qc6 (27...Qc2!?–+) 28.e4 White prepares d5 (28.Qe2 Ra8–/+) 28...Rc8 (28...b4 29.Qd3–/+) 29.d5+= ed5 30.ed5 Qd6 31.Qb3 (31.g3 b4+=) 31...b4–/+ 32.h3 h6 33.Rb1 (33.Qd3 g6–/+) 33...Rc3 34.Qb4?? (better is 34.Qb2–/+) 34...Rc1!!–+ (34...Rc1 35.Rc1 Qb4–+) 0–1. Isotov,Sergey – Fochenkov,Vladislav, Staraya Russa RUS, 2012.

7.Bd3 0–0 A) 8.0–0 Nbd7 (8...b6 9.Ne5 Qc7 10.f4 Ne4 11.Nc3 f6=; 8...Bd6 9.Ne5 ab5 10.ab5 Ra1 11.Ba1 cb5=; 8...c5 9.Ne5 c4 10.Be2 Nbd7 11.d3 Qc7=; 8...Ne4 9.Nc3 Bf6 10.Qe2 c5 11.Be4 de4=) 9.Nc3 e5 10.Bf5 Qc7 11.bc6 bc6+=; B) 8.Nc3 Qc7 (8...Qd6 9.0–0 e5 10.Be2 e4 11.Ne1 Be6+=; 8...Bd6 9.Ne2 c5 10.c4 b6 11.0–0 dc4=) 9.Ne2 Nbd7 10.0–0 e5 11.Bf5 Bd6+=; C) 8.Ne5 Ne4 9.bc6 Nc6 10.Be4 de4 11.Nc6 bc6=.

7.Bd3 b6 A) 8.Ne5 c5 (8...Bb7 9.0–0 0–0 10.Nc3 c5 11.Be2 Nfd7=; 8...0–0 9.0–0 Qc7 10.f4 Ne4 11.Nc3 f6=; 8...Qd6 9.Qf3 0–0 10.0–0 Bb7 11.bc6 Nc6=; 8...Qc7 9.0–0 0–0 10.f4 Ne4 11.Nc3 f6=) 9.Qf3 Bd6 10.Be2 0–0 11.Nc4 Be7+=; B) 8.Nc3 Bb7 (8...0–0 9.Ne5 Qd6 10.f4 Nfd7 11.Qh5 f5=; 8...Qc7 9.Ne2 c5 10.c4 0–0 11.cd5 ed5=) 9.0–0 0–0 10.Ne5 c5 11.Qf3 Nbd7=; C) 8.Na3 Bd6 (8...Bb7 9.0–0 0–0 10.Ne5 Ne4 11.Be4 de4=; 8...Bb4 9.0–0 Bb7 10.Qe2 Qe7 11.Nb1 0–0=; 8...0–0 9.0–0 Ne4 10.Qe2 f6 11.c4 Qd6=; 8...Ne4 9.Ne5 cb5 10.Be4 de4 11.Qg4 Bf6+=; 8...c5 9.0–0 0–0 10.Ne5 c4 11.Be2 Nfd7=; 8...Qc7 9.0–0 0–0 10.Be5 Bd6 11.Bf6 gf6=) 9.Ne5 Bb7 10.0–0 0–0 11.f4 Qe7=; D) 8.Be2 0–0 (8...Bd6 9.0–0 0–0 10.Ne5 Qc7 11.f4 Bb7=; 8...Bb7 9.0–0 0–0 10.Be5 Ng4 11.Bc3 Bd6+=; 8...Bd7 9.0–0 0–0 10.Ne5 ab5 11.ab5 Ra1=) 9.0–0 Bb7 10.Be5 Ng4 11.Bb2 Bd6+=; E) 8.Be5 c5 (8...Bd6 9.Nc3 0–0 10.0–0 c5 11.Rb1 Be5=) 9.Bb8 Rb8 10.Ne5 Qc7 11.Nc6 Ra8+=; F) 8.0–0 Bb7 (8...0–0 9.Ne5 Bb7 10.f4 c5 11.Qf3 Ne4=; 8...c5 9.c4 0–0 10.Nc3 Bb7 11.cd5 Nd5=) 9.Nc3 0–0 10.Ne5 c5 11.Be2 Nfd7=.

7.Bd3 c5 A) 8.Nc3 0–0 (8...ab5 9.Bb5 Bd7 10.0–0 0–0 11.Qe2 Nc6=; 8...b6 9.0–0 0–0 10.Be2 Nbd7 11.ba6 e5=; 8...Bd6 9.0–0 e5 10.e4 d4 11.Nd5 Nd5+=; 8...Nbd7 9.0–0 0–0 10.ba6 ba6 11.Rb1 Rb8+=) 9.Be2 Nbd7 10.ba6 ba6 11.0–0 e5+=; B) 8.0–0 b6 (8...Nbd7 9.c4 0–0 10.Qc2 ab5 11.ab5 Ra1=; 8...Bd6 9.c4 ab5 10.ab5 Ra1 11.Ba1 Nbd7=; 8...0–0 9.c4 b6 10.Nc3 Bb7 11.cd5 Nd5=; 8...ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.c4 Nb6=; 8...c4 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Bd7=; 8...Bd7 9.c4 0–0 10.Nc3 Bd6 11.Qb3 dc4=) 9.Be2 0–0 10.Nc3 Nbd7 11.ba6 Ba6=.

7.Bd3 Bd6 8.0–0 Nbd7 (8...0–0 9.Ne5 ab5 10.ab5 Ra1 11.Ba1 cb5=; 8...c5 9.c4 0–0 10.Na3 Nbd7 11.Qc2 Qc7=) 9.Nc3 e5 10.Bf5 0–0 11.bc6 bc6 +=.

7.Bd3 Nbd7 A) 8.Nc3 Qc7 (8...0–0 9.0–0 e5 10.Bf5 Qc7 11.bc6 bc6+=; 8...ab5 9.ab5 Ra1 10.Ba1 0–0 11.Be2 e5+=; 8...cb5 9.ab5 e5 10.Bf5 Qc7 11.ba6 ba6=; 8...e5 9.Bf5 Bd6 10.0–0 0–0 11.bc6 bc6+=; 8...Bd6 9.bc6 bc6 10.Ba3 c5 11.0–0 Qc7+=) 9.bc6 bc6 10.Be2 0–0 11.Rb1 e5+=; B) 8.0–0 0–0 (8...Bd6 9.Qe2 0–0 10.Re1 c5 11.e4 de4=; 8...Qc7 9.Ba3 c5 10.Nc3 0–0 11.Re1 Re8+=; 8...c5 9.c4 ab5 10.ab5 Ra1 11.Ba1 Nb6=) 9.Qe2 Qc7 10.Nc3 e5 11.Bf5 Bd6+=.

7.Be2 0–0 A) 8.Ne5 Ne4 9.d3 Qa5 10.c3 Nd6 11.d4 f6+=; B) 8.0–0 Bd7 (8...b6 9.Ne5 Qd6 10.f4 Bb7 11.Nc3 Rc8=; 8...Bd6 9.Ne5 ab5 10.ab5 Ra1 11.Ba1 cb5+=; 8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7=; 8...Nbd7 9.Nd4 c5 10.Nf3 ab5 11.ab5 Ra1+=) 9.bc6 Nc6 10.Ne5 Rc8 11.f4 Qc7+=; C) 8.Na3 Nbd7 (8...ab5 9.ab5 Nbd7 10.0–0 e5 11.d4 e4=; 8...Qa5 9.c4 Ne4 10.0–0 b6 11.Qc2 Bb4=; 8...b6 9.0–0 Bb7 10.d3 Nbd7 11.Nd4 c5=) 9.0–0 ab5 10.ab5 e5 11.d4 e4=.

7.Be2 ab5 8.ab5 Ra1 9.Ba1 0–0 10.0–0 c5 11.c4 b6 12.d4 Nbd7 13.Nbd2 cd4 14.Nd4 Nc5 15.Nc6 Qc7 16.Ne7 Qe7 17.Nf3 Bb7 18.Qd4 dc4 19.Bc4 Rd8 20.Qh4 Bf3 21.gf3 Nd5 22.Qg3 Nf6 23.Kh1 Ra8 24.Rg1 g6 25.Qg5 Nd5 26.Qe5 f6 27.Qb2 Nc7 28.Qf6+/– Qf6 29.Bf6 Ra4 30.Rc1 Kf7 31.Bd4 Rb4 32.Bf1 Nb5 33.Bc5 bc5 34.Rc5 Nd6 35.Rc7 Kg8 36.Kg2 Nf7 37.Bc4 Nd6 38.Be6 Kh8 39.e4 Nb7 40.Bd5 Nd6 41.Rd7 Nb5 42.Rb7 Rb1 43.Bc6 Nc3 44.Rb1 Nb1 45.e5 Kg7 46.f4 Nc3 47.Kf3 Kf7 48.Ke3 Ke7 49.Kd4 Nd1 50.f3 Nf2 51.Be4 Kf7 52.Kd5 Nh3 53.Kd6 Nf4 54.Bd5 Ke8 55.e6 Nd5 56.Kd5 Ke7 57.Ke5 h6 58.f4 h5 59.h4 Ke8 60.Kf6 (60.Kf6 g5 61.fg5 Kd8 62.e7 Kc7 63.g6 Kd7 64.g7 Ke8 65.g8Q Kd7 66.e8Q Kc7 67.Qb5 Kd6 68.Qd8#) 1–0. florenc1330 (1865) – blerimi001 (1885), kurnik, 2011.

7.Be2 ab5 8.ab5 Ra1 9.Ba1 cb5 10.0–0 Bd7 11.Nd4 b4 +=.

7.Be2 b6 A) 8.0–0 0–0 9.Ne5 Bb7 10.f4 Ne4 11.f5 Bf6=; B) 8.Be5 c5 (8...Nfd7 9.Bb2 0–0 10.0–0 Bd6 11.c4 ab5=; 8...Bd6 9.Nc3 Ne4 10.Bd6 Nc3 11.dc3 Qd6=) 9.Bb8 Rb8 10.Ne5 Qc7 11.Nc6 Ra8=; C) 8.Nc3 Bd6 (8...0–0 9.Ne5 Bb7 10.0–0 Bd6 11.f4 Qc7=) 9.0–0 0–0 10.bc6 Nc6 11.d4 Qe7+=; D) 8.Na3 0–0 (8...Bb7 9.0–0 0–0 10.d3 Nbd7 11.c4 dc4=; 8...Ne4 9.0–0 0–0 10.d3 Nc5 11.c3 Bb7=) 9.0–0 Bb7 10.bc6 Nc6 11.d4 Rc8+=; E) 8.Bd4 0–0 (8...c5 9.Bb2 0–0 10.0–0 Nbd7 11.Na3 Qc7=) 9.0–0 Bb7 10.Nc3 c5 11.Be5 Nfd7+=; F) 8.Bd3 Bb7 (8...c5 9.0–0 0–0 10.Be2 Nbd7 11.Na3 Bd6=; 8...Bd6 9.0–0 0–0 10.Ne5 Bb7 11.f4 c5=; 8...0–0 9.0–0 Bd6 10.Ne5 Bb7 11.f4 c5=) 9.0–0 0–0 10.Nc3 Bd6 11.Re1 e5+=; G) 8.Ne5 Qc7 (8...Bb7 9.0–0 0–0 10.Nc3 d4 11.ed4 Qd4=; 8...0–0 9.0–0 Qd6 10.f4 Bb7 11.Nc3 Rc8=; 8...Qd6 9.Nd3 Nbd7 10.f4 Qc7 11.bc6 Qc6=) 9.0–0 0–0 10.f4 Bb7 11.Nc3 Bd6=.

7.Be2 c5 8.c4 0–0 9.0–0 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bc3 Qa2 13.cd5 (13.d3 dc4 14.dc4 Ne4+=) 13...Nd5= 14.Be5 Nd7 15.Nc3 Nc3 (15...Qa5 16.Nd5 ed5 17.Bb2=) 16.Bc3+= Nb6 17.Qa1 Qd5 (better is 17...Qa1!? 18.Ra1 f6+=) 18.Bg7+– Rd8 (18...Re8 19.Rc1+–) 19.Bf6 (19.Bh8 Bf8+–) 19...Rd7 (19...Qd6 20.Bh8 Bf8 21.Be5+–) 20.Be7 Re7 21.Qf6 Rc7? (better is 21...Qd6+–) 22.Ne5 Qd6 23.Bh5 Qf8 (23...Nd5 24.Bf7 Kf8 25.Qh8 Ke7 26.Bh5+–) 24.Ng4 Qg7 (24...Qe8 25.Qg5 Kf8+–) 25.Qd8 Qf8 26.Nh6 Kg7 27.Qg5 Kh8 28.Qf6 Qg7 29.Qd8 Qf8 (29...Qg8 30.Qg8) 30.Qf8# 1–0. Woelfelschneider,Peter – Motz Mecker, 2009.

7.Be2 Bd6 A) 8.Na3 Qe7 (8...0–0 9.0–0 ab5 10.ab5 Qe7 11.Qc1 e5+=; 8...Nbd7 9.0–0 e5 10.c4 cb5 11.cb5 0–0=; 8...b6 9.0–0 0–0 10.c4 Bb7 11.d4 Qe7=; 8...ab5 9.ab5 0–0 10.c4 Qe7 11.Nc2 Ra1=) 9.c4 ab5 10.cb5 e5 11.bc6 bc6+=; B) 8.0–0 Nbd7 (8...0–0 9.Ba3 ab5 10.ab5 Bd7 11.bc6 bc6=) 9.Na3 e5 10.bc6 bc6 11.c4 Rb8+=; C) 8.Ne5 Nfd7 (8...Nbd7 9.f4 Qc7 10.Nd7 Nd7 11.0–0 0–0=; 8...Qc7 9.f4 0–0 10.0–0 Nbd7 11.Nd7 Nd7=) 9.Nd7 Bd7 10.0–0 0–0 11.Nc3 Qh4=.

7.Be2 Bd7 A) 8.Nc3 Qc7 (8...Bd6 9.bc6 Nc6 10.Ba3 Ba3 11.Ra3 Qe7=) 9.bc6 Nc6 10.Rb1 e5 11.0–0 Bd6+=; B) 8.0–0 ab5 (8...0–0 9.Ba3 ab5 10.ab5 Bd6 11.Qc1 cb5=; 8...b6 9.Ne5 0–0 10.Nc3 Qc7 11.f4 Bd6=; 8...c5 9.c4 dc4 10.Bc4 0–0 11.d4 ab5=) 9.ab5 Ra1 10.Ba1 cb5 11.Ne5 0–0+=; C) 8.Ne5 Qc7 (8...0–0 9.Nc3 Qc7 10.f4 Bd6 11.ba6 Na6=; 8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.0–0 0–0=; 8...Bd6 9.0–0 0–0 10.f4 ab5 11.ab5 Ra1=) 9.0–0 0–0 10.bc6 Nc6 11.Nd7 Qd7=; D) 8.Na3 b6 (8...0–0 9.0–0 b6 10.Ne5 Qc7 11.c4 Rc8=; 8...Qa5 9.c4 0–0 10.0–0 Ne4 11.Qc2 Rc8=; 8...c5 9.Ne5 ab5 10.ab5 c4 11.d3 cd3=; 8...ab5 9.ab5 Ra5 10.bc6 Nc6 11.Nb5 0–0=; 8...Qb6 9.0–0 0–0 10.Ne5 Rd8 11.c4 ab5=) 9.Ne5 0–0 10.0–0 Qc7 11.c4 ab5=.

7.Be2 Nbd7 A) 8.Bc3 Qc7 (8...cb5 9.ab5 0–0 10.0–0 Bd6 11.d4 Ne4=; 8...0–0 9.0–0 Qc7 10.Qc1 Bd6 11.Qb2 e5+=; 8...Ne4 9.bc6 bc6 10.0–0 0–0 11.Bb2 Rb8+=; 8...Bd6 9.0–0 0–0 10.d4 Qc7 11.Bd3 Ne4+=; 8...c5 9.0–0 0–0 10.d3 Bd6 11.ba6 ba6+=) 9.0–0 0–0 10.bc6 bc6 11.d4 Rb8+=; B) 8.h3 0–0 (8...Qc7 9.Ba3 c5 10.d4 0–0 11.0–0 b6+=; 8...c5 9.0–0 0–0 10.Na3 Qa5 11.c4 Ne4=; 8...Bd6 9.0–0 0–0 10.d4 ab5 11.ab5 Ra1=; 8...cb5 9.ab5 0–0 10.0–0 Bd6 11.d4 Nb6=) 9.0–0 Qc7 10.Ba3 c5 11.d4 b6+=; C) 8.0–0 0–0 (8...Bd6 9.c4 ab5 10.ab5 Ra1 11.Ba1 dc4=; 8...Qc7 9.Ba3 c5 10.d4 0–0 11.c4 b6=) 9.Nd4 c5 10.Nf3 Bd6 11.d4 cd4=.

7.Ne5 0–0 8.Bd3 (8.Be2 Ne4 9.0–0 f6 10.Nf3 ab5 11.ab5 Ra1+=) 8...Ne4 9.bc6 Nc6 10.Be4 de4 11.Nc6 bc6 =.

7.Ne5 ab5 8.ab5 Ra1 (8...Ra5 9.Be2 cb5 10.Ra5 Qa5 11.Nc3 b4=) 9.Ba1 Nbd7 (9...0–0 10.Be2= cb5 11.Bb5 Bd6+=) 10.Nd7 (10.bc6!? Ne5 11.cb7 Bb7 12.Be5+=) 10...Bd7= 11.bc6 (11.Be5 cb5+=) 11...bc6 (11...Bc6+=) 12.c4 0–0 13.cd5 cd5 14.Bd3 Qa8 15.Nc3? (better is 15.Bd4+=) 15...d4!–+ 16.ed4 (16.Ne2 Qg2 17.Rg1 Qh2 18.Bd4 e5–+) 16...Qg2 17.Be4?? (17.Rf1–+) 17...Ne4 18.f3 (18.Rf1 Ra8 19.Bb2 Nc3 20.Bc3–+) 18...Qf2 0–1. Bini,Gabriele – Habib,Osvaldo Mario, Canarias en Red prel 1st blitz, 2004.

7.Ne5 Qc7 8.Be2 Bd7 (8...0–0 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5=; 8...Nbd7 9.f4 ab5 10.ab5 Ra1 11.Ba1 0–0=; 8...Bd6 9.f4 0–0 10.0–0 Nbd7 11.Nd7 Nd7=; 8...ab5 9.ab5 Ra1 10.Ba1 0–0 11.0–0 cb5=; 8...b6 9.0–0 0–0 10.f4 Ne4 11.Nc3 f6=; 8...Ne4 9.0–0 f6 10.Nf3 ab5 11.ab5 Ra1=) 9.0–0 0–0 10.bc6 Nc6 11.Nd7 Qd7 =.

7.Ne5 Qd6 A) 8.Be2 b6 (8...0–0 9.0–0 Nbd7 10.f4 Rd8 11.Qe1 cb5=; 8...Ne4 9.Bh5 g6 10.Nf7 Kf7 11.Bh8 Kg8+=; 8...Nfd7 9.d4 Ne5 10.de5 Qc7 11.0–0 0–0=; 8...Nbd7 9.f4 Ne4 10.Nd7 Qd7 11.0–0 0–0=; 8...ab5 9.ab5 Ra1 10.Ba1 Nfd7 11.f4 Bh4=; 8...cb5 9.ab5 0–0 10.0–0 Qc7 11.Bd4 Nbd7=) 9.Nf3 Nbd7 10.bc6 Qc6 11.0–0 0–0=; B) 8.Qf3 Nbd7 9.Qg3 0–0 10.Nd7 Qd7 11.ba6 ba6=; C) 8.ba6 Na6 (8...b6 9.Ng4 Qd8 10.a5 ba5 11.Nf6 Bf6=; 8...ba6 9.c4 Ne4 10.Ng4 0–0 11.f3 Nc5=) 9.d4 Nd7 10.Ba6 Ra6 11.Ba3 c5=; D) 8.f4 b6 (8...0–0 9.Bd3 Ne4 10.Be4 de4 11.Nc3 ab5=; 8...Bd7 9.Ng4 c5 10.Nf6 Bf6 11.Bf6 gf6=; 8...ab5 9.ab5 Ra1 10.Ba1 Bd7 11.Be2 0–0=; 8...Nbd7 9.Be2 Ne4 10.Nd7 Qd7 11.0–0 0–0=) 9.bc6 Nc6 10.Nc6 Qc6 11.Be2 Bb7+=; E) 8.Bd3 Nbd7 (8...ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.f4 c5=) 9.f4 c5 10.0–0 c4 11.Be2 ab5+=; F) 8.c4 dc4 (8...b6 9.d4 ab5 10.cb5 0–0 11.bc6 Nc6=; 8...ab5 9.ab5 Ra1 10.Ba1 0–0 11.d4 dc4=; 8...cb5 9.ab5 Nbd7 10.d4 Qc7 11.Nd7 Nd7=; 8...Bd7 9.d4 Qc7 10.Nc3 0–0 11.c5 ab5=) 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Nbd7=; G) 8.d4 ab5 9.ab5 Ra1 10.Ba1 0–0 11.c4 dc4=.

7.Ne5 Bd6 A) 8.f4 0–0 (8...cb5 9.ab5 0–0 10.Bd3 Nbd7 11.0–0 Ne4=; 8...Qc7 9.Be2 0–0 10.0–0 Nbd7 11.Nd7 Nd7=; 8...ab5 9.ab5 Ra1 10.Ba1 0–0 11.Bd3 c5=) 9.Be2 Ne4 10.0–0 ab5 11.ab5 Ra1+=; B) 8.Be2 Nfd7 (8...Ne4 9.0–0 f6 10.Nf3 0–0 11.d3 Ng5=; 8...Nbd7 9.f4 Qc7 10.Nd7 Nd7 11.0–0 0–0=; 8...Qc7 9.f4 0–0 10.0–0 Nbd7 11.Nd7 Nd7=) 9.Nd7 Bd7 10.0–0 0–0 11.Nc3 Qh4=.

7.Ne5 Nbd7 8.Be2 Ne5 (8...cb5 9.ab5 Ne5 10.Be5 Bd6 11.Bd6 Qd6=) 9.Be5 ab5 10.ab5 Ra1 11.Ba1 0–0 =.

6.Nf3 Bd7

7.c4 0–0 8.d4 =.

7.c4 cb5 8.ab5 0–0 9.Nc3 (9.Bd4 a6=) 9...Qc7 (9...Bd6 10.d4 dc4 11.Bc4=) 10.Qb3 dc4 11.Bc4 a6 12.0–0 Rd8 (12...Rc8 13.d3+=) 13.d4 (13.b6 Qc8+=) 13...Bd6 (13...Qb6 14.Rfc1 Rc8 15.Ba3 Ba3 16.Ra3+/–) 14.Rfc1 (14.b6 Qc6+/–) 14...Be8 (14...Rc8 15.Bd3 Qb6 16.Nd2+/–) 15.e4 White prepares the advance d5 (15.Bd3 Qe7+/–) 15...Nfd7 (15...Bf4 16.b6 Qe7 17.Ba3+/–) 16.e5 (16.ba6 Na6 17.Nb5 Qb6+/–) 16...Bf8 17.Ne4 (17.Be6 fe6 18.Nd5 Nc5 19.Rc5 Qf7+–) 17...Qb6 18.d5 (18.Bc3 Qa7+/–) 18...Nc5 (18...ab5!? 19.Bd3 Ra1 20.Ba1 ed5+=) 19.Nc5+= Bc5 20.de6 Bf2 21.Kh1 fe6 22.Be6 The passed pawn on e5 quickly leads to threats (22.Ng5 Kh8+/–) 22...Kh8+= 23.Ng5 (23.Bc4 Ra7+=) 23...Be3 (23...Bg6 24.Nf7 Bf7 25.Bf7+=) 24.Rf1+/– The mate threat is Rf8 24...Bg6 25.Nf7 Bf7 26.Bf7 Nd7? (better is 26...Bh6+/–) 27.e6+– Nc5 (27...Bd4 28.Bd4 Qd4+–) 28.Qe3 Rd3 (28...Rg8 29.e7 Nd7+–) 29.Qe5 1–0. Daniszkowicz – Rakowski, Olsztyn Poland, 1961.

7.c4 c5 8.Be2 0–0 9.0–0 Ne4 10.d3 Bf6 11.Qc2 (11.de4 Bb2 12.Ra2 de4 13.Rb2 ef3 14.Bf3 Qc7+=) 11...Bb2 12.Qb2 Nf6 13.cd5 Nd5 14.e4 (14.Rc1 Qb6+=) 14...Qf6 15.e5 (15.Qf6 Nf6 (15...gf6? 16.ed5 ed5 17.Nc3+–) 16.Nc3 Rc8=) 15...Qe7 (15...Qg6 16.d4 Nf4 17.Nh4=) 16.Nbd2 a6 17.Nc4 ab5 (17...b6 18.a5=) 18.ab5+= Ra1 19.Ra1 (worse is 19.Qa1 Nf4 20.Qb2 Bb5–/+) 19...Nb4 (19...f6 20.Ra7 b6 21.d4+/–) 20.Nd6+/– Nd5 21.Nb7 (21.d4 b6+/–) 21...Qg5?? (21...Bb5 22.Qb5 Nc3 23.Qc5 Ne2 24.Kf1 Qb7–+) 22.Ng5+– (22.Ng5 Rc8 23.Nd6+–) 1–0. ZZMeB4 (1680) – look (1715), caissa.com, 2007.

7.Bd3 cb5 8.ab5 Qb6 9.Bd4 Bc5 10.Bc5 Qc5 11.Nc3 0–0 12.Ne5 a6 13.0–0 Qd6 14.f4 a5 15.Qf3 d4?? (better is 15...Bc8+=) 16.Qb7+– dc3 17.Qa8 cd2 18.Qa5 Bc8 19.Qd2 Nbd7 (19...Qc5+–) 20.Bh7! Kh7 (20...Nh7 21.Qd6) 21.Qd6 (21.Qd6 Ne4 22.Qe7+–) 1–0. kamret (2200) – vleeshhd (1770), GameColony.com, 2003.

7.d4 cb5 8.ab5 Qb6 9.Ba3 =.

7.d4 Ne4 8.Bd3= Qb6 9.c4 =.

7.d4 Ne4 8.Bd3= Nd6 9.Qe2 (9.Na3 Qa5 10.Qd2 Qd2 (10...Qa4? 11.Nb1 Nc4 12.Ra4 Nd2 13.Nbd2+–) 11.Nd2 a6=) 9...a6 10.bc6 (10.ba6 Na6 (worse is 10...ba6 11.0–0+=) 11.Bc3 c5 12.dc5 Nc5+=) 10...Nc6+= 11.0–0 Nb4 12.Ne5 Nd3 13.Qd3 (13.cd3 Rc8=) 13...Bc8 (13...0–0 14.Ba3+=) 14.Nd2= f6 15.Nef3 0–0 16.e4 de4 (16...b6 17.e5 fe5 18.Ne5=) 17.Ne4 Ne4 (17...b6 18.Rfe1=) 18.Qe4 Bd7 19.d5 (19.Rfb1 Qc8=) 19...ed5 20.Qd5 Rf7 21.Rfd1 (worse is 21.Qb7 Rb8 22.Qa6 Rb2–+) 21...Bc6 22.Qh5 (22.Qb3 Qc7=) 22...Qf8 (22...Qc7 23.Nd4+=) 23.Nd4= Be4 (23...Rc8 24.Qf5=) 24.Qe2 (24.Re1 Bg6 25.Qd5 Qd8=) 24...Bg6 25.h4 (25.Qc4 Qc8 26.Qb3 Bd6=) 25...h6 (25...Bc5 26.h5 Re7 27.Qg4=) 26.Qg4 (26.h5 Bh7=) 26...Bh7= 27.Nf5 (27.Qf3 Rc8=) 27...Bf5 28.Qf5 Rc8 (28...Qc8 29.Qd3=) 29.Bd4 (29.Rd7 Rc5 30.Qe6 Rc2 31.Rb7 Bc5+/–) 29...Bc5= 30.c3 Kh8 (30...Bd4 31.cd4 Rd8 32.d5=) 31.Rab1 Rfc7 32.Bc5 (32.a5 Qe8+=) 32...Rc5= 33.Qf3 (33.Qe4 b5=) ½–½. Butze,Roland – Apel,Arno, corr DDR, 1976.

7.Be2 a6 8.Na3 ab5 9.ab5 cb5 10.Nb5 Ra1 11.Qa1 Nc6 12.0–0 0–0 13.Ne5 Ne5 14.Be5 Bb5 15.Bb5 Qa8 16.Qb2 Qa5 17.Ra1 Qb6 (17...Qd2?? 18.Bc3 Qc3 19.Qc3+–) 18.Ra4 Qc5 19.Bd3 Rc8 20.Qb7 Ne4 21.Ra7 Re8 22.c3 (22.Be4?! de4 23.h3 Qe5 24.Qe7 Rf8+/–) 22...Nd6 (22...Nd2?? 23.Bb5 Rf8 24.Bd4+– (24.Qe7 Qb5 25.Ra1 Qb2–/+)) 23.Qd7 Nc4 (23...Kf8 24.Ra6 Qc8 25.Rd6 Bd6 26.Qd6 Kg8+–) 24.Qe8 (24.Qe8 Bf8 25.Qf7 Kh8 26.Bg7 Bg7 27.Qg7#) 1–0. usingprogram (2030) – ilo5 (1615), kurnik, 2012.

7.Be2 cb5 8.ab5 Qb6 9.Nc3 0–0? (better is 9...a6=) 10.Na4+/– Qc7 11.Bd4 b6? (better is 11...Qa5 12.Nb6 ab6+–) 12.Nb6! (12.Nb6 ab6 13.Ra8+–) 1–0. pcmvr (2870) – salaschess (2190), net–chess.com, 2011.

7.Be2 Qc7 8.d4 Bd6 9.c4 0–0 10.c5 Be7 11.0–0 Re8 12.Ne5 Ne4 13.Nd2 f6+/– (13...Nd2!? 14.Qd2 b6=) 14.Nef3= (14.Nd7!? Qd7 15.Ne4 de4 16.Qb3+/–) 14...e5 15.Ne4 de4 16.Nd2 Bf5 17.Bc4 Kh8 18.f3 ef3 (18...ed4!? 19.Bd4 (19.fe4 de3 20.Rf5 ed2) 19...cb5 20.Bb5 Rd8) 19.Nf3 (19.Rf3 Bg4–+) 19...Nd7+/– (19...ed4!? 20.Ng5 Bg6 (20...fg5 21.Qd4 Bf8 22.Rf5+–)) 20.Ng5 (20.Ne5!? fe5 21.Rf5+/–) 20...g6 21.Nf7 Kg7 22.Rf5 gf5?? 23.Qh5 ed4 24.Qh6 Kg8 25.Ng5 Kh8 26.Qh7# 1–0. Plock,Joerg – Klein, 1997.

7.c4 dc4

8.Bc4 cb5

9.ab5 Qc7 A) 10.d3 A1) 10...0–0 11.Be5 (11.Qe2 Nd5 12.0–0 Nb6 13.Be5 Qd8 14.Rd1+=; 11.0–0 Rc8 12.Qe2 a5 13.Be5 Qd8 14.Nc3+=; 11.Qb3 a6 12.0–0 Rc8 13.Be5 Bd6 14.Bf6+=; 11.Bd4 a6 12.0–0 Rc8 13.Nc3 Bc5 14.Bf6+=) 11...Qb6 12.Nc3 Rc8 13.0–0 Qd8 14.Nd4+/–; A2) 10...a6 11.0–0 0–0 12.Qe2 Rc8 13.Be5 Bd6 14.Bf6+=; B) 10.Qb3 a6 11.Be5 (11.0–0 0–0 12.d3 Rc8 13.Be5 Bd6 14.Bf6+=) 11...Qb6 12.0–0 0–0 13.Nc3 Rc8 14.Rfb1+=.

9.ab5 Bd6 10.0–0 A) 10...a6 11.Be5 (11.Qe2 0–0 12.Rc1 Qe7 13.Bf6 Qf6 14.Nc3+=) 11...Qc7 12.Bd6 Qd6 13.d4 0–0 14.Ne5+=; B) 10...0–0 11.Bd4 (11.d3 a6 12.Ne5 Qc7 13.f4 Bc5 14.d4+=; 11.Qe2 Qe7 12.Bd4 a5 13.Ne5 a4 14.Nc3+=) 11...a6 12.Qe2 Qe7 13.Ne5 Rc8 14.d3+=.

9.ab5 Bd6 10.d3 A) 10...0–0 11.Nbd2 (11.0–0 a6 12.Ne5 Qc7 13.f4 Bc5 14.d4+=; 11.Bd4 a6 12.Ne5 Qc7 13.f4 Rc8 14.0–0+=; 11.Qe2 Qe7 12.Ne5 Bb4 13.Nd2 Nd5 14.Nd7+=; 11.Qc2 Qe7 12.0–0 e5 13.Nbd2 a6 14.Qc3+=; 11.Qa4 Qe7 12.0–0 e5 13.Nc3 Na6 14.Nd5=; 11.Qb3 Qe7 12.Ne5 a5 13.0–0 Rc8 14.Bd4+=) 11...a6 12.0–0 Re8 13.Ne5 Qc7 14.f4+=; B) 10...a5 11.0–0 (11.Nbd2 0–0 12.0–0 Qe7 13.Ne5 Rc8 14.Bd4+=; 11.Ra4 Na6 12.Be5 Be5 13.Ne5 Nc5 14.Ra3+=; 11.Qa4 0–0 12.0–0 Qe7 13.Nbd2 e5 14.Rfc1+=; 11.Bd4 Bc8 12.0–0 Nbd7 13.Qc2 0–0 14.Rc1=; 11.Ne5 0–0 12.0–0 Qc7 13.f4 Rc8 14.Qf3+=) 11...0–0 12.Nbd2 Qe7 13.Ra4 Rc8 14.Qa1+=; C) 10...a6 11.0–0 (11.Ne5 0–0 12.0–0 Qc7 13.f4 Bc5 14.d4+=; 11.Be5 Qc7 12.Bf6 gf6 13.0–0 Rg8 14.Nbd2+=; 11.Nbd2 0–0 12.0–0 Bc8 13.e4 Bf4 14.Qe2+=; 11.Bd4 0–0 12.0–0 Ng4 13.h3 Nh6 14.e4+=; 11.ba6 Na6 12.Ne5 b5 13.Bb3 0–0 14.0–0=) 11...0–0 12.Ne5 Qc7 13.f4 Bc5 14.d4+=.

9.ab5 Bd6 10.Bd4 A) 10...a5 11.Nc3 (11.d3 0–0 12.0–0 Bc8 13.Ne5 Nfd7 14.f4+=; 11.0–0 Bc8 12.Nc3 Nbd7 13.e4 e5 14.Be3=; 11.Qa4 0–0 12.Nc3 Na6 13.Qa5 Nc7 14.Ba7+=) 11...0–0 12.Na4 Bc7 13.0–0 b6 14.Qc2+=; B) 10...a6 11.Qe2 (11.0–0 0–0 12.Nc3 Qc7 13.Qe2 Bh2 14.Nh2+=; 11.d3 0–0 12.0–0 Nd5 13.ba6 ba6 14.Bd5+=; 11.Ne5 Qc7 12.f4 Be5 13.fe5 Qc4 14.ef6=; 11.Nc3 0–0 12.Qe2 Qe7 13.Ne5 Rc8 14.f4+=; 11.Be5 Qc7 12.Bf6 gf6 13.Qe2 Rg8 14.0–0=) 11...0–0 12.0–0 Qe7 13.Ne5 Rc8 14.d3+=.

9.ab5 Bd6 10.Qe2 A) 10...a5 11.Be5 (11.ba6 ba6 12.Ba6 Ra6 13.Ra6 Na6 14.Qa6+=; 11.0–0 0–0 12.e4 Bb4 13.e5 Nd5 14.Qe4+/–; 11.d4 Qe7 12.0–0 Nd5 13.e4 Nb6 14.Bd3+/–) 11...Qb6 12.Nc3 Be5 13.Ne5 Qd6 14.d4+/–; B) 10...0–0 11.0–0 (11.Be5 Qe7 12.0–0 Rc8 13.d4 Nd5 14.Nbd2+=) 11...Qe7 12.d4 Rc8 13.Rc1 a6 14.Nc3+=.

9.ab5 0–0

10.0–0 Qb6 11.Nc3 Bb4 12.Qb3 Bc3 13.Bc3 a6? 14.Bf6 gf6+/– 15.Rfb1 Qc7 16.Rc1 Qd6 17.Qc3 e5 18.d4 e4 19.Nd2 f5 20.Be2 Be6 21.Nc4 Qe7? 22.Nb6 Ra7 23.d5 Bd7 24.Qd4 Be8 25.Nc8 Qg5 26.Na7 ab5 27.Bb5 Bb5 28.Nb5 Nd7 29.Rc7 Nf6 30.Nd6 Ng4 31.h3 Nh6 32.Rb7 f6 33.Raa7 f4 34.ef4 (34.ef4 Qg6 35.Qe4 Qe4 36.Rg7 Kh8 37.Ne4+–; 34.Qe4 f5 35.Qe6 Nf7 36.Rf7 Qg2 37.Kg2 f3 38.Kf3 Rf7 39.Qf7 Kh8 40.Qh7) 1–0. elsh1403 – pawelzkarwic, kurnik, 2011.

10.0–0 Qc7 11.Qb3 (11.Qe2 Rc8 12.Rc1 Ne4 13.d3 Nd6 14.Na3+=; 11.d3 Rc8 12.Qe2 Nd5 13.Nbd2 Nb6 14.Rfc1+=) 11...Rc8 12.Rc1 Qd8 13.d3 a6 14.Ne5 +=.

10.0–0 Nd5 11.Bd4 (11.Nc3 Nf6 12.d3 a6 13.Ne5 Bd6 14.f4+=; 11.Qc2 Nb6 12.Bd3 f5 13.Be5 Bf6 14.Be2+=; 11.Ne5 Nb6 12.Bd3 Bd6 13.f4 a6 14.Qh5+=; 11.d3 Nb6 12.Ne5 Bf6 13.Qf3 Nc4 14.dc4+=; 11.d4 a6 12.ba6 Na6 13.Ne5 f6 14.Nd7+=; 11.Nd4 Bf6 12.Qf3 Nb6 13.Bd3 e5 14.Nf5+=) 11...Nb6 12.Bd3 Bf6 13.Qc2 h6 14.Ne5 +=.

10.0–0 Bd6 11.d3 (11.Qe2 Qe7 12.d4 Rc8 13.e4 Bf4 14.Nbd2+=; 11.Bd4 a6 12.Nc3 Qc7 13.Qe2 Bh2 14.Nh2+=) 11...a6 12.Ne5 Qc7 13.f4 Bc5 14.d4 +=.

10.0–0 Ne4 11.Qa4 (11.Qc2 Nd6 12.Bd3 f5 13.Nc3 Qb6 14.Na4+=; 11.Qb3 Nd6 12.Be2 a6 13.ba6 Na6 14.Rc1+=; 11.d3 Nd6 12.Qb3 a6 13.Nc3 Qb6 14.Ba3+=; 11.Nc3 Nd6 12.Bd3 Qb6 13.Na4 Qd8 14.Qe2+=; 11.Be2 Nd6 12.Qa4 Na6 13.Bg7 Nc5 14.Qa3+=) 11...Nd6 12.Be2 Na6 13.Qg4 e5 14.Qh5 +/–.

10.0–0 Ne8 11.Be2 (11.Bd3 Nd6 12.Nc3 Qb6 13.Na4 Qd8 14.Qe2+=; 11.Nc3 Nd6 12.Bd3 Qb6 13.Na4 Qd8 14.Qe2+=; 11.Qc2 Nd6 12.Bd3 f5 13.Nc3 Qb6 14.Na4+=) 11...Nd6 12.Nc3 Qc7 13.Qb3 a5 14.Rfc1 +/–.

10.Qb3 Bd6 11.Be5 (11.d3 Qe7 12.Ne5 a5 13.0–0 Rc8 14.Ra4+=; 11.0–0 a6 12.Be5 Be5 13.Ne5 Bc8 14.d4+=; 11.Qd3 Qe7 12.Ng5 Rc8 13.b6 Nc6 14.Bf6=; 11.Bd4 a6 12.d3 Qe7 13.Ne5 Be5 14.Be5+=; 11.d4 a6 12.Ne5 Be5 13.de5 Ne4 14.0–0+=; 11.Ne5 Ne4 12.0–0 Qb6 13.Qc2 Nc5 14.Nd7+=) 11...Qe7 12.0–0 Ng4 13.Bd6 Qd6 14.d4 +=.

10.Qc2 Qc7 11.Qb3 Rc8 12.d3 a6 13.0–0 Qb6 14.Bd4+=; 10...Bd6 11.d3 (11.0–0 Qe7 12.Nc3 Rc8 13.d3 a6 14.Rfc1=; 11.Qd3 Qe7 12.Ng5 Rc8 13.b6 Nc6 14.Bf6=) 11...Qe7 12.0–0 e5 13.Qc3 Re8 14.Ng5 +=.

10.Qc2 Nd5 11.0–0 (11.Nc3 Nb6 12.Bd3 f5 13.0–0 Bd6 14.Rfc1+=) 11...Bf6 (11...Nb6 12.Bd3 f5 13.Rc1 Bd6 14.Be2+=) 12.d4 (12.Nc3 Qc7 13.Qe4 Bc3 14.Bc3+/–) 12...Qc7 (12...Qb6 13.Qb3 a5 14.Bd5+/–) 13.Qe2 (13.Qb3 Rc8 14.Bd5+/–) 13...Rc8 14.Nbd2 (14.Rc1+=) 14...Qd8 15.Rfc1 Be8 16.g3 (16.e4 Nf4 17.Qe3 Ng6+/–) 16...Nd7 17.e4 N5b6 18.e5 Bg5? (better is 18...Nc4!? 19.Rc4 Be7=) 19.Ng5+/– Qg5 20.Ne4 Qd8 21.Nd6 Rc7 22.Bb3 Rc1 23.Rc1 Rb8 24.Qg4 Nf8 25.f4 (25.Ba3 a6+/–) 25...Nd5 (25...Nc8!? 26.d5 Bd7+/–) 26.Bd5 ed5 27.f5 (27.Qf3 a6+–) 27...Bd7 (better is 27...a6!?+/–) 28.Qf3+– a6 29.Qd5 Be6?? (29...Be8+–) 30.fe6 Ne6 (30...fe6 31.Qf3 Qe7 32.b6+–) 31.Qf3 (better is 31.Rf1!? Qg5 32.Rf7 Qg6+–) 31...Ng5 32.Qg4 g6 33.Rc8 (better is 33.h4 Ne6+–) 33...Rc8 34.Qc8 (34.Nc8?! h5 35.Ne7 Qe7 36.Qc8 Qf8 37.Qf8 Kf8 38.ba6 ba6+=) 34...Qc8 35.Nc8 ab5 36.Nd6 Kf8 (36...Nf3 37.Kf2 Nh2 38.Nb5+–) 37.Nb5 Ke7 38.Kf2 Kd7 (38...f6 39.Bc1+–) 39.Ke3 (39.d5 h6+–) 39...Kc6 40.Nd6 (better is 40.Nc3!? h5+–) 40...f6 41.h4 fe5 42.de5 (42.hg5?! ed4 43.Kd4 Kd6+–) 42...Ne6 43.g4 b5 44.Nf7 Kd5 45.Ng5 Nf8 46.e6! Ne6 47.Ne6 (47.Nh7!? Kc4+–) 47...Ke6 48.Ke4 b4 49.Bd4 b3 50.Bb2 h6 1–0. Schoppmeyer,Herbert – Muschalle,Siegfried, OWL–ch Loehne, 1971.

10.Qc2 Ne8 11.0–0 (11.Bd3 f5 12.Bd4 a6 13.0–0 Nc7 14.Bb6+=; 11.Nc3 Nd6 12.Bd3 f5 13.0–0 Qb6 14.Na4+=) 11...Nd6 12.Bd3 f5 13.Nc3 Qb6 14.Na4 +=.

10.d3 A) 10...Qe8 11.Qb3 Bc8 12.0–0 Nbd7 13.Bd4 a6 14.ba6+=; B) 10...Qc7 11.Be5 (11.Qe2 Bb4 12.Nbd2 Nd5 13.0–0 Nc3 14.Bc3+=; 11.0–0 Rc8 12.Qe2 Nd5 13.Nbd2 Nb6 14.Rfc1+=; 11.Qb3 a6 12.0–0 Rc8 13.Nbd2 Qb6 14.Rfc1+=; 11.Bd4 a6 12.0–0 Rc8 13.Nc3 Bc5 14.Bf6+=) 11...Qb6 12.Nc3 Rc8 13.0–0 a6 14.Qe2+=; C) 10...Qb6 11.Nc3 (11.Bd4 Bc5 12.Bf6 gf6 13.Nc3 Rc8 14.0–0+=) 11...Bd6 12.0–0 e5 13.Ng5 Bf5 14.Qf3+/–; D) 10...a6 11.0–0 (11.Be5 Ng4 12.Bg3 Qb6 13.ba6 Na6 14.0–0=) 11...Qe8 12.Qb3 Qd8 13.Rc1 Ne8 14.Be5+=; E) 10...Ne8 11.0–0 (11.Bd4 Bf6 12.0–0 Nd6 13.Ra7 Ra7 14.Ba7=; 11.Qb3 Nd6 12.0–0 a6 13.Nc3 Qb6 14.Ne5+=; 11.Nc3 Nd6 12.Qb3 a6 13.0–0 Qb6 14.Ne5+=; 11.Be5 Nd6 12.Nc3 Nc4 13.dc4 Qc8 14.0–0+=) 11...Nd6 12.Qb3 a6 13.Nc3 Qb6 14.Ne5+=; F) 10...Bd6 11.Nbd2 (11.0–0 a6 12.Ne5 Qc7 13.f4 Bc5 14.d4+=; 11.Bd4 a6 12.0–0 Nd5 13.ba6 ba6 14.Bd5+=; 11.Qc2 Qe7 12.0–0 e5 13.Qc3 Re8 14.Nbd2+=; 11.Qe2 Re8 12.Be5 Bb4 13.Nfd2 a5 14.0–0+=; 11.Qa4 Qe7 12.0–0 e5 13.Nc3 Na6 14.Rfc1=; 11.Qb3 Qe7 12.Ne5 a5 13.0–0 Rc8 14.Bc3+=) 11...a6 12.0–0 Re8 13.Ne5 Qc7 14.f4+=; G) 10...Nd5 11.0–0 Nb6 12.Be5 f6 13.Bg3 Kh8 14.Qb3=.

10.d4 A) 10...Qc7 11.Nbd2 (11.Ne5 Bb4 12.Bc3 Bd6 13.Qb3 a6 14.b6+=; 11.Ba3 Ba3 12.Na3 a6 13.ba6 ba6 14.0–0+=; 11.Qe2 Bb4 12.Nbd2 Ne4 13.Bd3 Nd2 14.Nd2+=; 11.Qd3 Rc8 12.Nbd2 Nd5 13.0–0 Qb6 14.Ne5+=; 11.Bd3 Nd5 12.0–0 Qb6 13.Qe2 Rc8 14.Ne5+=; 11.Qb3 Rc8 12.Ne5 a6 13.0–0 Qb6 14.f4+=) 11...Qb6 12.Qb3 Nd5 13.0–0 Nb4 14.Qa4+=; B) 10...Ne4 11.Qa4 (11.Nc3 Nc3 12.Bc3 Qc7 13.Qb3 Rc8 14.Ne5+=; 11.Qb3 Nd6 12.Bd3 Qb6 13.Ba3 Rc8 14.0–0+=) 11...Qb6 12.Bd3 Nd6 13.Nc3 Rc8 14.0–0+=; C) 10...Nd5 11.Qb3 (11.0–0 a6 12.ba6 Na6 13.Qe2 Nac7 14.Ra8+=; 11.Nc3 Bb4 12.Bd5 ed5 13.Qb3 Bc3 14.Bc3=) 11...Bb4 12.Bc3 Be7 13.Ba5 Nb6 14.Bd3+=; D) 10...Qb6 11.Qb3 (11.Qe2 Ne4 12.Nfd2 Nd6 13.Ba3 Rc8 14.Bc5=; 11.Ba3 Ba3 12.Na3 a6 13.ba6 Na6 14.0–0+=; 11.Qa4 a6 12.0–0 Bd6 13.Ba3 Ba3 14.Na3+=; 11.Qd3 Nc6 12.Qe2 Na5 13.Bd3 Bb4 14.Kf1+=; 11.Nc3 Rc8 12.Ne5 Nc6 13.Nd7 Nd7 14.0–0=) 11...a6 12.0–0 Rc8 13.Nc3 Qd6 14.Ra4+=; E) 10...Bd6 11.Ne5 (11.Ba3 Qa5 12.Qd2 Qc7 13.Bd6 Qd6 14.0–0+=; 11.0–0 a6 12.Qe2 Qb6 13.e4 Nh5 14.e5+=; 11.Qe2 Qb6 12.0–0 Rc8 13.Rc1 a6 14.Nc3+=; 11.Qd3 Qb6 12.Ba3 Rc8 13.Bd6 Qd6 14.0–0+=; 11.Bd3 a6 12.0–0 Qb6 13.Qe2 Nd5 14.Ne5+=; 11.Nc3 Qc7 12.Qb3 a5 13.0–0 Rc8 14.Be2+=) 11...Nd5 12.0–0 Nb6 13.Bd3 Qh4 14.Qf3+/–; F) 10...Ne8 11.Bd3 (11.Nc3 Qb6 12.0–0 Nd6 13.Bd3 Nb5 14.Qb3+=; 11.Qe2 Qb6 12.Bd3 Nd6 13.Ba3 Rc8 14.0–0+=) 11...Bb4 12.Nc3 Qe7 13.0–0 Nf6 14.Qa4+=; G) 10...a6 11.0–0 (11.Ne5 Nd5 12.Nc3 Bb4 13.Qd3 Qc7 14.Nd7=; 11.Qe2 Ne4 12.ba6 Na6 13.Nbd2 Nd2 14.Nd2=; 11.ba6 Na6 12.Qe2 Nc7 13.Ra8 Qa8 14.0–0=) 11...Nd5 12.ba6 ba6 13.Qe2 a5 14.Rc1+=.

10.Bd4 A) 10...Qc7 11.d3 (11.Ne5 a5 12.0–0 Be8 13.Qa4 Nbd7 14.f4=; 11.Qe2 Rc8 12.d3 a5 13.0–0 a4 14.Nc3+=) 11...a6 12.Nc3 Rc8 13.0–0 Bc5 14.Bf6+=; B) 10...Ne4 11.Bd3 (11.Nc3 Nd6 12.Bd3 a6 13.0–0 f6 14.Qb1+=; 11.Ra7 Ra7 12.Ba7 Nd6 13.Be2 Nb5 14.Bb8=) 11...Nd6 12.Nc3 a6 13.0–0 f6 14.Qb1+=; C) 10...Ne8 11.Bd3 (11.Nc3 a6 12.0–0 Nd6 13.Be2 Qc7 14.Qb1+=; 11.Ra7 Ra7 12.Ba7 Nd6 13.Be2 Nb5 14.Bb8=) 11...a5 12.Nc3 Nd6 13.0–0 f5 14.Qa4+=; D) 10...a5 11.d3 (11.Nc3 Qc7 12.Qa4 Na6 13.0–0 Rfc8 14.d3+=; 11.0–0 Bd6 12.d3 Bc8 13.Ne5 Nfd7 14.f4+=; 11.Ne5 Bc8 12.0–0 Nfd7 13.f4 Ne5 14.fe5+=; 11.Qa4 Nd5 12.Bd5 ed5 13.0–0 Bf5 14.Rc1=) 11...Nd5 12.0–0 Nb6 13.Nc3 Bc8 14.Bb3+=; E) 10...a6 11.0–0 (11.Ne5 Ne4 12.ba6 Na6 13.Qg4 Nf6 14.Qf3=; 11.Nc3 Bd6 12.0–0 Qc7 13.Qe2 Bh2 14.Nh2+=; 11.d3 Bb4 12.Nbd2 Ba5 13.ba6 Na6 14.Qb3+=) 11...Ne4 12.Nc3 Nd6 13.Bd3 f6 14.Qb1+=.

10.Ne5 A) 10...Ne8 11.Qg4 (11.Bd4 Nd6 12.Nc3 a5 13.Bd3 Be8 14.Qg4+=; 11.Nc3 Nd6 12.Be2 Be8 13.d4 f6 14.Nf3+=; 11.Be2 Nd6 12.Nc3 Be8 13.0–0 f6 14.Nf3+=; 11.Nd7 Nd7 12.0–0 Nb6 13.Be2 Nf6 14.Qb3=; 11.0–0 Nd6 12.Nc3 Bf6 13.Nd7 Qd7 14.Be2+=) 11...Bf6 12.d4 Nd6 13.Nd7 Qd7 14.Bd3+=; B) 10...Qc7 11.Qb3 (11.d4 Bb4 12.Bc3 Bd6 13.Qb3 a6 14.b6+=; 11.Bd4 a5 12.0–0 Be8 13.Qa4 Nbd7 14.f4=) 11...a6 12.0–0 Rc8 13.d4 Qb6 14.f4+=.

10.0–0 a6

11.Qc2 Bd6 12.Ng5 g6 13.Qc3 Be7 14.Ne4 +/–.

11.Nc3 Qc7 12.d3 =.

11.Nc3 Ne8 12.Qb3 (12.d4 Nd6 13.Bd3 Qb6+=) 12...Nc7 (12...Nd6 13.Be2=) 13.Rfc1 (13.d3 ab5 14.Nb5 Ra1 15.Ra1 Nb5 16.Bb5 Qb6=) 13...b6 (13...ab5 14.Nb5 Ra1 15.Ba1 Nb5 16.Bb5=) 14.d4 (14.ba6 Nca6 15.d4 Bc6+/–) 14...Ra7 (14...ab5 15.Nb5 Ra1 16.Ra1 Nb5 17.Bb5 Bb5 18.Qb5+=) 15.Rd1 (15.ba6 Nca6 16.Ne5 Be8+/–) 15...Qe8 (15...a5 16.d5 Bd6 17.Qa4+/–) 16.ba6 b5 17.Bd3 Ra6 (17...Nba6 18.Ne5+/–) 18.Ne5 Ra1 (18...b4 19.Nd7 Ra1 20.Nf8 Rd1 21.Nd1 Kf8 22.Bc1+=) 19.Ra1 b4 20.Ne2 Nc6 (20...Bb5!?+=) 21.Nd7+/– Qd7 22.Qc2 Nd8 (22...Nd5 23.Bb5 (23.Bh7?! Kh8+/–) 23...Rc8 24.Rc1+–) 23.Bh7 (23.Ra7 Bd6 24.Bh7 Kh8+–) 23...Kh8 24.Bd3 Nd5 25.e4 Nf6 26.Qd2 Ng8 (26...Nc6!?+–) 27.Qe3 Nh6 28.d5! The mate threat is Qxh6 28...ed5?? (28...Qd5 29.Qh6) 29.Qh6 1–0. Sternik,Ryszard – Busko,Marek, Poland, 1990.

11.d3 Qe8 12.Qb3 Qd8 13.Rc1 Ne8 14.Be5 +=.

11.Bd4 Ne4 12.Nc3 Nd6 13.Bd3 f6 14.Qb1 +=.

11.Qe2 Nd5 12.ba6 ba6 13.Nc3 Bc6 14.Nd5 +=.

11.Be5 Ng4 12.d4 Ne5 13.Ne5 Qb6 14.ba6 +=.

11.Ne5 Qc7 12.d4 Rc8 13.Qf3 Bd6 14.Bd3 +=.

7.Be2 0–0

8.0–0 Re8

9.Na3 a6 A) 10.Ne5 Ne4 (10...Qc7 11.c4 ab5 12.cb5 Ne4 13.f3 Nd6 14.Qc2 f6 15.Nd3 Rc8) 11.Bh5 g6 12.Bf3 f6 13.Be4 de4 14.Nd7 Nd7 15.bc6 bc6; B) 10.Bd3 Ne4 11.c4 ab5 12.cb5 Bc8 13.Qc2 f5 14.Ne5 Qa5 15.f3 Nc5; C) 10.c4 Ne4 (10...Qa5 11.d3 Bc8 12.Qc2 Nbd7 13.cd5 cd5 14.Bc3 Bb4 15.Bb4 Qb4; 10...Bb4 11.Qb3 Bd6 12.d4 b6 13.cd5 ed5 14.Ne5 ab5 15.ab5 c5; 10...ab5 11.ab5 Ne4 12.d3 Nc5 13.Qc2 Qc8 14.Bd4 dc4 15.Nc4 Ra1) 11.d3 Nc5 12.d4 Ne4 13.Nd2 Nd2 14.Qd2 Bf6 15.h3 h6; D) 10.h3= Bd6 (10...Ne4 11.c4 Qa5 12.Qc2 h6 13.Nb1 Qc7 14.Be5 Bd6 15.b6 Qd8; 10...Bb4 11.c4 Ne4 12.Nc2 Bd6 13.d3 Nc5 14.d4 Nb3 15.Rb1 dc4; 10...ab5 11.ab5 Ne4 12.c4 f6 13.Qc2 Qc7 14.Bd3 Bc5 15.bc6 Qc6; 10...h6 11.Ne5 Qc7 12.d4 cb5 13.ab5 Ne4 14.Bh5 g6 15.Bf3 Ba3) 11.c4 ab5 12.ab5 Ne4 13.d3 Ng5 14.Qb3 Nf3 15.Bf3 Qg5.

9.Na3 Bc8 A) 10.h3 Nbd7 (10...Bd6 11.c4 Nbd7 12.Qc2 c5 13.b6 Nb6 14.a5 Nc4 15.Bc4 dc4; 10...c5 11.c4 Nbd7 12.Qb3 Bd6 13.Nc2 b6 14.a5 ba5 15.Bc3 dc4; 10...h6 11.c4 Nbd7 12.Qc2 c5 13.Bd3 Bd6 14.Qb3 b6 15.Bc3 Bb7; 10...Ne4 11.d3 Nc5 12.Nb1 Nbd7 13.d4 Ne4 14.Nbd2 Ndf6 15.c4 Bd7) 11.c4 Bd6 12.Qc2 c5 13.a5 b6 14.a6 h6 15.Rfd1 Qc7; B) 10.g3 Nbd7 (10...c5 11.c4 Nbd7 12.Qc2 h6 13.Nh4 Qc7 14.Rfd1 b6 15.d4 Bb7; 10...Ne4 11.c4 Nd7 12.Qc2 c5 13.d3 Nd6 14.Nb1 Bf6 15.Nc3 d4; 10...Bd6 11.c4 Nbd7 12.Qc2 c5 13.a5 b6 14.a6 h6 15.Nh4 Qc7; 10...Qc7 11.bc6 Nc6 12.Nb5 Qd8 13.d3 Bd7 14.Qd2 Rc8 15.Rfb1 a6) 11.c4 h6 12.Qc2 c5 13.Nh4 Ne4 14.d3 Nef6 15.cd5 ed5; C) 10.c4 Nbd7 (10...c5 11.Nb1 b6 12.a5 ba5 13.Qa4 Nbd7 14.Qa5 Bb7 15.Qd8 Red8; 10...h6 11.Qc2 c5 12.Nb1 Nbd7 13.a5 b6 14.ab6 Qb6 15.Ne5 Bb7; 10...cb5 11.Nb5 Nc6 12.Rc1 a6 13.Nbd4 Bd7 14.cd5 ed5 15.Nc6 bc6; 10...Ne4 11.Qc2 Nd7 12.d3 Nec5 13.Nd4 cb5 14.Nab5 a6 15.Nc3 dc4) 11.Qc2 c5 12.Nb1 b6 13.a5 ba5 14.Bc3 Bb7 15.Ba5 Qb8.

9.Na3 Bd6 A) 10.Ne5 Qc7 (10...c5 11.Bh5 Re7 12.Nd3 Nh5 13.Qh5 f6 14.Qf3 Be8 15.e4 Qc7; 10...Bc8 11.f4 Qc7 12.d4 Nbd7 13.Bd3 a6 14.c4 ab5 15.c5 Be7; 10...Ne4 11.Bd3 f6 12.Nec4 Ba3 13.Na3 Nc5 14.Qh5 Nd3 15.cd3 a6) 11.f4 Bc8 12.Bd3 Nbd7 13.Nd7 Nd7 14.Qh5 g6 15.Qh6 Bf8; B) 10.d4 Ne4 (10...Bc8 11.c4 Nbd7 12.c5 Bc7 13.Qc2 e5 14.g3 Ne4 15.a5 ed4; 10...Qa5 11.Ne5 Ne4 12.bc6 Bc6 13.Nb5 Be5 14.de5 Bb5 15.ab5 Qb4; 10...Qc7 11.c4 Ne4 12.Bd3 b6 13.Qc2 f5 14.Ne5 Rc8 15.f3 Nc5; 10...h6 11.Ne5 Qa5 12.c4 Ne4 13.Qc2 Qd2 14.Qd2 Nd2 15.Rfd1 Bb4) 11.Nd2 f5 12.f4 Bc8 13.Ne4 fe4 14.c4 Nd7 15.Bc3 Nf6; C) 10.Be5 Qe7 (10...Qc7 11.d4 Ne4 12.Bd6 Qd6 13.Bd3 cb5 14.Nb5 Bb5 15.ab5 Nc3; 10...Bc8 11.d4 Be5 12.de5 Ne4 13.Qd4 c5 14.Qb2 Nd7 15.Bd3 f5) 11.Bd6 Qd6 12.d4 Bc8 13.c4 Nbd7 14.bc6 bc6 15.Qc2 Rb8; D) 10.c4 e5 (10...Ne4 11.Qc2 Qe7 12.Nb1 e5 13.d3 Nf6 14.Nbd2 Rc8 15.Rfc1 dc4) 11.d4 ed4 12.cd5 cd5 13.Nd4 Ne4 14.Rc1 Qf6 15.f4 a6.

9.Na3 Ne4 A) 10.h3 Qa5 (10...a6 11.c4 Bf6 12.Qc2 ab5 13.ab5 cb5 14.cb5 Bb2 15.Qb2 Qf6; 10...f6 11.c4 Qc7 12.Qc2 a6 13.Rfb1 Rc8 14.d3 Nc5 15.b6 Qd8; 10...g6 11.c4 Qa5 12.Qc2 a6 13.Nb1 Rc8 14.Nc3 Nd6 15.d3 cb5; 10...Bf6 11.Bf6 Qf6 12.c4 a6 13.Qb3 cb5 14.ab5 ab5 15.cd5 Na6) 11.c4 Rc8 12.Qc2 Be8 13.Nb1 Nd7 14.d3 Nd6 15.bc6 bc6; B) 10.c4 Qa5 (10...a6 11.d3 Nc5 12.d4 Ne4 13.Nd2 Nd2 14.Qd2 g6 15.h3 Bf8; 10...Bf6 11.Qc2 Bb2 12.Qb2 Qf6 13.d4 Qf5 14.Bd3 f6 15.Nd2 Qg4; 10...f6 11.Qc2 a6 12.d3 Nc5 13.d4 Ne4 14.Bd3 ab5 15.ab5 f5; 10...Qc7 11.Qc2 f6 12.Bd3 f5 13.Ne5 Rc8 14.f3 Nc5 15.Be2 Be8) 11.Qc2 Rc8 12.d3 Nc5 13.Nb1 dc4 14.dc4 f6 15.Nc3 Be8.

9.Na3 Bf8 10.c4 +/= (10.h3 Ne4 (10...a6 11.Ne5 Qc7 12.f4 Ne4 13.Bh5 g6 14.Bf3 Ng3 15.Re1 Bg7; 10...Bb4 11.c4 a6 12.Qc2 Qe7 13.Qb3 Ba5 14.d3 Bc8 15.Rfc1 Nbd7; 10...Bd6 11.c4 e5 12.c5 Bc7 13.Qb3 Qe7 14.bc6 Nc6 15.Nb5 Be6; 10...Qc7 11.c4 Ne4 12.d3 Nc5 13.Qc2 f6 14.d4 Ne4 15.Bd3 f5) 11.c4 Bd6 12.d3 Ng5 13.Qd2 Nf3 14.Bf3 Qg5 15.Nc2 Bc8; 10.Bd3 Ne4 (10...cb5 11.ab5 Bc8 12.Ne5 Nbd7 13.f4 Nc5 14.Be2 Nfd7 15.c4 Ne5; 10...Bc8 11.c4 Nbd7 12.Qc2 c5 13.Ng5 g6 14.f4 Bd6 15.Rf3 Qe7) 11.Nb1 Nd6 12.Qe2 f6 13.Nc3 e5 14.e4 f5 15.ed5 e4; 10.Ne5 Bc8 (10...cb5 11.ab5 Bc8 12.c4 Nbd7 13.Qc2 Ne5 14.Be5 Bb4 15.d4 Nd7; 10...Ne4 11.f3 Nd6 12.c4 f6 13.Ng4 cb5 14.cb5 Bc8 15.Rc1 Nd7) 11.f4 c5 12.Bf3 Nbd7 13.c4 h6 14.Qc2 Bd6 15.Nd7 Bd7) 10...e5 (10...a6 11.Qc2+= ab5 12.ab5 e5 13.Ne5 Re5 14.Be5 Ba3 15.Qb3 dc4; 10...Bd6 11.Ne5 cb5 12.ab5 Bc8 13.d4 Nbd7 14.c5 Be7 15.Nd3 Nf8; 10...Ne4 11.d3 Nc5 12.Qc2 f6 13.d4 Ne4 14.Nb1 Bb4 15.Nc3 Bc3; 10...Qc7 11.Qc2 Ne4 12.d3 Nc5 13.Be5 Qd8 14.Bd4 Qe7 15.Rfc1 Rc8; 10...Bb4 11.Qc2 a6 12.Qd3 dc4 13.Qc4 Ba3 14.Ba3 cb5 15.Qb3 ba4) 11.d4 White threatens to win material: d4xe5 (better is 11.Ne5!? a6 (11...Bf5 12.Nf3 Be4 13.d3 Bg6 14.Qd2 Nbd7 15.bc6 bc6) 12.bc6 (12.f4 ab5 13.ab5 Bf5 14.g4 Be6 15.Qc2 Nbd7) 12...Bc6 (12...Nc6 13.Nd7 Qd7 14.Bf6 gf6 15.cd5 Nb4) 13.Nc6 (13.f4 Nbd7 14.Nc6 bc6 15.Nc2 Rb8) 13...bc6 (13...Nc6 14.Bf6 gf6 15.Bf3 d4) 14.Rb1+/– (14.Nc2 Nbd7 15.Rb1 Qc7) 14...Nbd7 15.Nc2 Qc7) 11...e4+/= Black threatens to win material: e4xf3 (11...ed4 12.Bd4 Bf5 13.cd5 cd5 14.Bf6 Qf6 15.Qd5 Be4) 12.Nd2 (12.Ne5 Bf5 13.Rc1 a6 14.Qb3 ab5 15.ab5 c5) 12...h6 (12...Bf5 13.Nab1 Nbd7 14.Nc3 h6 15.Qb3 Qa5) 13.bc6 (13.h3 Be6= (13...Bf5 14.Qb3 Nbd7 15.c5 Qa5) 14.Nab1 Nbd7 15.c5 Nh7; 13.Nab1 Bf5 14.Nc3 Nbd7 15.c5 Qa5) 13...bc6 (13...Nc6 14.Nb5= Bf5 15.Nc3 dc4) 14.cd5 (14.Bc3 Qc8= (14...Bf5 15.Qc2 a5) 15.Qc2 Bf5; 14.h3 Bf5 15.cd5 cd5) 14...cd5 15.Qc2 (15.Nb3 Qb6) 15...Nc6 ½–½. Rodriguez de Castro,Ayar – Strugo,Victor, Wch U20 fin–D, 1973.

9.Bd3 Bc8 A) 10.Qe2 Nbd7 (10...Bd6 11.Be5 Be5 12.Ne5 c5 13.c4 Qd6 14.f4 Nbd7 15.Nd7 Bd7; 10...g6 11.h3 Nbd7 12.a5 Qc7 13.Nc3 Nc5 14.Ba3 Bd7 15.a6 ba6) 11.h3 Bd6 12.Nc3 e5 13.bc6 bc6 14.Bf5 Rb8 15.Ba3 Ba3; B) 10.h3 Nbd7 (10...Bd6 11.Be5 Be5 12.Ne5 Nbd7 13.f4 c5 14.c4 Qc7 15.Nd7 Bd7; 10...h6 11.Be5 cb5 12.Bb5 Nc6 13.Nc3 Bd7 14.Bc6 Bc6 15.Nb5 Nd7; 10...cb5 11.ab5 Nbd7 12.Nc3 e5 13.Be2 Bd6 14.Qb1 Nb6 15.d4 e4) 11.Nc3 Qc7 12.e4 c5 13.ed5 ed5 14.Re1 c4 15.Bf5 g6; C) 10.Be5 Nbd7 (10...Ne4 11.Nc3 f6 12.Bg3 Ng3 13.fg3 e5 14.Ne5 fe5 15.Bh7 Kh7; 10...c5 11.c4 Nbd7 12.Nc3 Ne5 13.Ne5 d4 14.ed4 Qd4 15.Qe2 Rd8) 11.bc6 bc6 12.Nc3 Ne5 13.Ne5 Bd6 14.Nc6 Qc7 15.Nd4 a6; D) 10.Nc3 Nbd7 (10...Qc7 11.bc6 bc6 12.Nd4 Nbd7 13.Rb1 g6 14.f3 e5 15.Nb3 Rb8; 10...c5 11.a5 Nbd7 12.h3 Bd6 13.Ba3 Qc7 14.b6 ab6 15.Nb5 Qb8) 11.Ne2 Qc7 12.Ng3 e5 13.Be2 e4 14.Nd4 Ne5 15.Ndf5 Bb4.

9.Ne5 A) 9...Bc8 A1) 10.Nc3 Bd6 (10...Nbd7 11.f4 Qc7 12.d4 Bb4 13.Qd2 Rd8 14.Bf3 c5 15.dc5 Ne5; 10...Qc7 11.d4 Nbd7 12.f4 Bb4 13.Qd2 Qa5 14.Bf3 cb5 15.ab5 Qb5) 11.f4 Nbd7 12.d4 Qc7 13.Qd3 c5 14.a5 Qd8 15.Ba3 Qe7; A2) 10.f4 Qc7 (10...Bd6 11.Na3 Qc7 12.Bd3 Nbd7 13.Nd7 Nd7 14.Qh5 g6 15.Qh4 Be7) 11.Nc3 Nbd7 12.d4 Bb4 13.Qd2 Qa5 14.Bf3 cb5 15.ab5 Qb5; A3) 10.d3 Qc7 (10...Nbd7 11.bc6 Ne5 12.Be5 bc6 13.Nd2 Bd6 14.Nf3 Rb8 15.Rb1 Rb1) 11.Nd2 Nbd7 12.f4 cb5 13.ab5 Ne5 14.fe5 Nd7 15.d4 f6; A4) 10.Nd3 Nbd7 (10...c5 11.c4 Nbd7 12.Qc2 Bd6 13.f4 h5 14.Ne5 h4 15.Bf3 Rb8; 10...Bd6 11.Nc3 Nbd7 12.f4 c5 13.Ba3 b6 14.Qe1 e5 15.Qh4 e4; 10...g6 11.Nc3 Nbd7 12.h4 e5 13.h5 d4 14.hg6 hg6 15.Nb1 Bd6) 11.Nc3 c5 12.a5 c4 13.Nf4 Nc5 14.Bf3 Bd7 15.g3 a6; B) 9...Qc7 10.d4 (10.f4 Bc8 11.Nc3 Nbd7 12.d4 Bb4 13.Qd2 Rd8 14.Bf3 c5 15.dc5 Ne5; 10.Bd3 Bc8 11.f4 Nbd7 12.Qf3 a6 13.Qg3 Nh5 14.Qh3 g6 15.bc6 bc6; 10.Na3 Bc8 11.Bd3 Nbd7 12.f4 a6 13.Nd7 Bd7 14.ba6 ba6 15.Qe2 c5) 10...Bc8 (10...cb5 11.ab5 Ne4 12.c4 dc4 13.Qc2 Nd6 14.Na3 Nb5 15.Qc4 Qc4) 11.Nd2 Nbd7 12.c4 Ne5 13.de5 Nd7 14.cd5 ed5 15.f4 Nc5.

6.Nf3 Nbd7

7.d4 0–0 8.c4 Bb4 9.Bc3 Qa5 (9...Bc3 10.Nc3 c5 11.Rc1=) 10.Qb3 Bc3 11.Qc3 Qc7 12.Nbd2 White plans a5 12...Re8 (12...a6 13.bc6 Qc6 14.Bd3+=) 13.c5 (13.Rc1 Ne4 14.Qc2 Nd2 15.Nd2 e5 16.de5 dc4+=) 13...e5= 14.a5 (14.Rb1 Ne4 15.Ne4 ed4 16.Nd4 de4 17.bc6 bc6=) 14...Ng4 (14...e4 15.Ng5=) 15.b6 (15.a6 e4 16.ab7 Bb7=) 15...Qb8 (15...Qd8 16.h3 ed4 17.Nd4=) 16.h3 (16.Be2 ab6 17.cb6 Qd6=) 16...ed4 17.Qd4 (better is 17.Nd4 Ngf6 18.Rd1=) 17...Ne3?? (better is 17...Ngf6=) 18.fe3+– Qg3 19.Kd1 Qf2 (19...ab6 20.cb6 Nf6+/–) 20.e4 (better is 20.Ra3!?+–) 20...Qd4+/– 21.Nd4 de4 22.N2b3 Nc5 23.Nc5 ab6 24.Ncb3 (24.Na4 Rd8 25.Nb6 Rd4 26.Ke2 Rb8+/–) 24...c5 (24...ba5 25.Ke2 (worse is 25.Ra5 Ra5 26.Na5 Rd8+=; worse is 25.Na5 b6+=) 25...a4 26.Ke3+=) 25.Nb5 (25.Nc2 ba5 26.Ra5 Ra5 27.Na5 b6+–) 25...Rd8 (25...Be6 26.Nd2 e3 27.Nc4 ba5 28.Ne3 Bb3 29.Nc2+–) 26.Ke1 (better is 26.Kc2 Be6 27.Nc7 Bb3 28.Kb3 Ra5 29.Re1+–) 26...Rd7?? (better is 26...Be6 27.Ra3 Bb3 28.Rb3 Ra5+–) 27.ab6+– Ra1 28.Na1 Re7 29.Nc7 (29.Nb3!? Re6 30.Nc5 Re5+–) 29...Be6 30.Bb5 f5 (30...g5+–) 31.Ne6 g6 (31...Re6 32.Bc4 Kf7+–) 32.Bc4 (32.Nb3 Kf7 33.Nd8 Kf6 34.Nc5 Re5 35.Nd7 Ke7 36.Ne5 Kd8 37.Nc6 Ke8 38.Na5 Kd8 39.Nb7 Ke7+–) 32...h5 (32...Kf7 33.Nc5 Ke8 34.Nab3+–) 33.Nc5 Kh7 (33...Kg7 34.Ke2+–) 34.Nab3 (better is 34.Ke2 Kg7+–) 34...f4 (34...h4 35.Bd5 Re8 36.Bb7+–) 35.Nd4 (35.Bd5 e3 36.Bb7 Re8+–) 35...f3 (35...Kh8 36.Nde6+–) 36.gf3 ef3 37.Kf2 (37.Kf2 Kh6 38.Nf3+–) 1–0. Nielsen,Joergen Axel – Raundorf, Denmark, 1969.

7.Be2 0–0 8.0–0 c5 9.c4 b6 10.d4 Bb7 11.Nbd2 dc4 12.Bc4 Ne4 13.Ne4+= Be4 14.Rc1 Bf6 15.Nd2 Bb7= 16.Ba3 Re8 17.dc5+= Nc5 18.a5 Ne4 19.Ne4+= Be4 20.f3 Bg6 21.a6+= Qb8 22.Bd6 Qd8 23.Qd2 Rc8 24.Rfd1+= Be7 25.Be7 Qe7 26.Qd7 Qa3 27.Qa7 Qe3 28.Kh1 Bh5 29.Qb7 Red8 30.Rd8 Rd8 31.Rg1 h6 32.a7 Qa3 33.Qb6 Ra8?? 34.Qb8!! Kh7 35.Qa8 Qc5 36.Bd3 (36.Bd3 g6 37.Qb8+–) 1–0. Bonetti,Shane – guest203, ICC, 2002.

7.Be2 0–0 8.0–0 Qc7 9.d4 Bd6 10.c4 dc4 11.Na3 c3 12.Bc3 Nd5 (12...Ne4 13.Bb2+=) 13.Bb2 Ba3 (13...Be7!?+=) 14.Ra3 cb5 15.ab5 N7f6 16.Qd3 Bd7 17.Ne5 Rfc8 18.Nd7 (18.Rc1!? Qb6 19.Rb3+–) 18...Qd7+= 19.Rb3 Rc7 (19...Qc7 20.Rc1 Qa5 21.Ra1+/–) 20.g3 Rac8 21.Ra1 b6 22.e4 Ne7 23.Kg2 Rc4 24.Qe3 Rc2 25.h3 Qb7 26.Bf3 Qd7 27.Bc3?? (better is 27.Qd3 R2c4 28.Ra2+/–) 27...h6?? (better is 27...Ned5 28.ed5 Nd5=) 28.Qd3+– R2c3 29.Rc3 Rd8 30.Rd1 Kh8 31.Rd2 Kg8 32.Bd1 Ng6 33.h4 Qb7 34.f3 Qd7 35.Bb3 Ne7 36.Kf2 Kh8 37.Ke3 (37.Rd1 Kg8+–) 37...Qb7 (37...Kg8 38.Bc4+–) 38.Rdc2 Rd7 39.Rc1 Kg8 40.Qc2 (40.Kf2 Ne8+–) 40...Ne8 41.Qa2 Nc7 42.Bc4 Kh8 43.Ra1 Kg8 (43...Ne8 44.Kf2+–) 44.Ra3 (44.Qa7 Qc8 45.Qa4 Qd8+–) 44...Nc8 45.Qb3 Kh8 46.h5 (46.Ra4 Qb8+–) 46...Ne8 47.d5 e5 (47...ed5 48.Bd5 (48.ed5?! Nf6+/–) 48...Qc7 49.Bc6+–) 48.Bf1 Ned6 (48...Nf6 49.Bh3 Rc7 50.Qb4+–) 49.Rc1 (49.Kf2 f5 50.Bh3 fe4 51.Bd7 Qd7 52.fe4 Nb5+–) 49...Ne7 (49...f5 50.Qb4+–) 50.Qd3 (50.Qb2 f6+–) 50...Rd8 (50...Ng8 51.Kf2+–) 51.Qc3 (51.Rac3 Rd7+–) 51...Rc8 52.Qb2 Rc1 53.Qc1 Qd7 (53...f5 54.Qc3+–) 54.Qb2 (54.Kf2 f6+–) 54...Nec8 (54...f6 55.Kf2+–) 55.Rb3 (55.Qe5!? f6 56.Qe6 Qc7+–) 55...Qc7 (55...f6 56.Qc3+–) 56.Qc3 (56.Rc3 Qd8+–) 56...Qb8 (56...Qe7 57.Kf2+–) 57.Rb2 (57.Qc6 Ne7 58.Qd7 Ng8+–) 57...Ne8 (57...Nb7 58.Ra2+–) 58.Bh3 (58.Kf2 Kg8+–) 58...Ncd6 59.Kf2 Qd8 60.Qc6 (60.Qe5?! Nc4 61.Qd4 Nb2 62.Qb2 Qc7+–) 60...Qc7 (60...Nf6 61.Ra2 Nh5 62.Qd7 (62.Ra7 Qg5 63.Ke2 Qg3 64.Rf7 Nf7 65.Qe8 Kh7 66.Bf5 g6 67.Qf7 Kh8=) 62...Qd7 63.Bd7+–) 61.Bd7 (better is 61.Ra2 Qc6 62.bc6+–) 61...Qd8 (61...Qc6 62.bc6 Nc7+–) 62.Ra2 Nf6 (62...Qb8 63.Be8 Ne8+–) 63.Ra7 Qe7 64.Qa8 Ng8 65.Qc6 Qf6?? 66.Kg2+– Kh7 67.Qb6 Ne4 68.Qf6 Nef6 69.Bc6 Nh5 70.d6 Nhf6 71.d7 Nd7 72.Rd7 Nf6 73.b6 Nd7 74.Bd7 Kg6 75.b7 Kf6 76.b8Q g6 77.Qd6 Kg7 78.Qe5 Kh7 79.Qf6 Kg8 80.Be8 Kh7 81.Qf7 Kh8 82.Qg6 h5 83.Bf7 h4 84.Qh6 1–0. Batchelor,Guy J (1880) – Espinosa Cancino,Monica, Glasgow SCO, Commonwealth Ch, 2014.

7.Be2 a6 8.c4 ab5 9.cb5 cb5 10.ab5 Ra1 11.Ba1 0–0 12.0–0 b6 13.d4 Bd6 (13...Bb7 14.Bb2=) 14.h3 (14.Bb2 Qe7=) 14...Bb7 15.Nbd2 (15.Nc3 Qe7=) 15...Ne4 (15...Qe7 16.Ne5=) 16.Ne4 (16.Ne5 Ndf6=) 16...de4 17.Nd2 (17.Ne5 Bd5=) 17...Bb8 (17...Qh4 18.Nc4 Be7 19.Qe1=) 18.Qb1 (18.f4 Bd5=) 18...Qc7 (18...Nf6 19.Rc1=) 19.g3 Nf6 20.Rc1 Qd7 (20...Qd8 21.Nc4=) 21.Kg2 (21.Nc4 Bc7=) 21...Re8 (21...Bd5 22.Nc4 Bc7 23.Ne5=) 22.Nc4 Nd5 (22...Qd8 23.Qc2=) 23.Ne5 Qd6 (23...Be5 24.de5 Rc8 25.Bd4=) 24.Nc6 (24.Kf1!?=) 24...Ne3+= 25.Kh2 (25.fe3 Deflection from g3 25...Qg3) 25...Nf5–/+ 26.Rg1 (26.Qb4 Qb4 27.Nb4 e3–+) 26...Bc6 (26...e3 27.f4–+) 27.bc6–/+ Qc6 (better is 27...e3 28.f4 Rc8–+ (28...Nd4?! 29.Bd4 Qd4 30.Rd1–/+; 28...Qc6?! 29.Bb5 Qf3 30.Be8 Ng3 31.Rg3 Bf4 32.Qe1=)) 28.Bb5+= Qc8 29.Be8 (29.Rc1 Qd8 30.Be8 Qe8 31.Qe4 Nd6+/–) 29...Qe8 30.Qb6 e3 (30...Bd6!?=) 31.fe3+/– Qc8 32.Qc5 (32.Qb3!? h5 33.e4 Ng3 34.e5+=) 32...Qa6= 33.Qc2 (33.Qc1 Bd6 34.Rg2=) 33...h6 (better is 33...Ne3!? 34.Qf2 Nf5=) 34.e4 (34.Qb2 Ba7 35.Qd2 Bb8+=) 34...Ng3+= 35.Rg3 (35.Qb2 Qe2 36.Rg2 Nf1 37.Kh1=) 35...Bg3–/+ 36.Kg3 Qa1 37.d5? (better is 37.Qd3–/+) 37...Qe5–+ 38.Kf3 ed5 39.Qc8 Kh7 40.Qf5? (40.ed5 Qd5 41.Kf2–+) 40...Qf5 41.ef5 g6 (better is 41...g5 42.fg6 Kg6 43.Kf4–+) 42.Kf4 f6 43.h4 h5 44.Ke3 g5 45.hg5 fg5 (45...fg5 46.Kd4 h4 47.Kd5 h3–+) 0–1. Bittner,Hansjoerg – Krause, corr, 1986.

7.Be2 Qc7 8.0–0 =.

7.Be2 Nf8 8.bc6 (8.Ne5 cb5 9.ab5 N8d7+=) 8...bc6= 9.Ne5 N6d7?? (better is 9...Bd7=) 10.Nc6+– Qb6 11.Bg7 Qc6? (better is 11...Rg8 12.Ne7 Rg7 13.Nc8 Rc8+–) 12.Bh8 f6 (12...Ng6 13.Bg7+–) 13.Bb5 Qd6 (13...Qc7 14.Nc3+–) 14.Qh5 Kd8 15.Nc3 (15.Bg7 Rb8+–) 15...Qe5 (15...Bb7 16.Rb1 d4 17.ed4 Bg2 18.Rg1+–) 16.Qf7 (16.Qh6 Qf5 17.e4 Qg4+–) 16...d4 (16...Qg5 17.0–0+–) 17.f4 Qc5 (17...Qf5 18.ed4 Qg6 19.Qg6 Ng6 20.Bg7+–) 18.Bd7 Bd7 (18...Nd7 19.Qg8 Bf8 20.ed4 Qd4 21.Bg7+– (worse is 21.Qh7 Bb7 22.Qg8 Rc8+–)) 19.Bf6 Bf6 20.Qf6 Kc7 21.ed4 Qf5 22.Qe5 (22.Qe7 Re8 23.Qa3 a6+–) 22...Qe5 (22...Kd8 23.Qf5 ef5 24.Ke2+–) 23.fe5 Ng6 (23...Bc6 24.0–0 Nd7 25.Rf7+–) 24.0–0 Rg8 (24...Rf8 25.Rf8 Nf8 26.Rf1+–) 25.Rf7 Kd8 (25...Nh4 26.g3 Kc6 27.Nb5+–) 26.Rb1 Kc8 (26...Ne7 27.Rh7 Nc8 28.Ne4 Ba4 29.Nc5+–) 27.Ne4 Bc6 (27...Nh4 28.Nd6 Kc7 29.Rb7 Kc6 30.Rfd7 Rg2 31.Kh1 Kd5 32.Rh7 Rh2 33.Kh2 Nf3 34.Kg3 Nd4+–) 28.Nd6 1–0. b4_player – opponent, gamecolony.com, 2007.

6.f4 0–0

7.Nf3 a6 8.Nc3 cb5 (8...ab5 9.ab5 Ra1 10.Qa1 Qc7 11.Bd3 c5 12.0–0 Bd7=; 8...c5 9.Bd3 b6 (9...c4 10.Be2 Bc5 11.0–0 Qd6 12.a5 ab5=; 9...Nbd7 10.0–0 Qa5 11.Be2 c4 12.Qe1 Rd8=) 10.0–0 Bb7 11.f5 c4 12.Be2 Nbd7=; 8...Ne4 9.Bd3 (9.Be2 Bf6 10.0–0 Bc3 11.Bc3 Nc3 12.dc3 ab5+=) 9...Bh4 (9...cb5 10.ab5 Nc3 11.Bc3 Nd7 12.0–0 Nc5=) 10.g3 Nc3 11.Bc3 Be7 12.0–0 c5=) 9.ab5 a5 (9...Ne4 10.Bd3 Nc3 11.Bc3 Nd7 12.0–0 Nc5=) 10.Be2 b6 (10...Ne4 11.0–0 Nd7 12.Na4 Ndc5=) 11.0–0 (11.Nd4 Ne4 12.Ne4 de4=) 11...Bb7 (11...Nbd7 12.Ne5 Bb7=) 12.Na4 (12.f5 Bd6=) 12...Nbd7 13.f5 Nc5 14.fe6 Ne6 (14...fe6!? 15.Nc5 bc5=) 15.Nd4+= Nd4 16.Bd4 (worse is 16.ed4 Re8+=) 16...Nd7 17.Bg4 Nc5 18.Bf5 Bc8 19.Nc3 Ne6 20.Ra4 Bb4 21.Ne2 Nd4 (21...Bd7 22.Bd3=) 22.Nd4+= (worse is 22.ed4 Bf5 23.Rf5 Qd7+=) 22...Bf5 23.Rf5 Qd7 24.Qf3 Bd2 25.Rd5 Be3 26.Kh1 (26.Qe3 Qd5) 26...Qe8 27.Nf5 Bd4 28.Ng3 (28.Rad4 Qe1; 28.Rdd4 Qe1; 28.Nd4 Qe1) 28...Qe1–/+ 29.Nf1 Bc5 30.Rf5 Rae8 31.Rg4 Re2?? (better is 31...g6–+) 32.Rg7!! Kh8 (32...Kg7 33.Rg5) 33.Rh7!! 1–0. Filipowicz,Andrzej (2400) – Pytlakowski,Andrzej (2400), Legion–ch Warszawa, 1969.

7.Nf3 a6 8.c4 dc4 9.Bc4 cb5 10.ab5 Nbd7 11.0–0 Nb6 12.Be2 Bd7 13.Nc3 Nfd5 14.Qb3 Nc3 15.Bc3 ab5 16.Ra8 Qa8 17.Bb5 Bb5 18.Qb5 Qa6 19.Qb3 h6?? 20.Ra1+– Qd3 21.Rb1 Nd5 22.Qb7 Nc3–/+ 23.dc3 Qe3 24.Kh1 Bf6 25.Qb4 Qc3 26.Qc3 Bc3 27.h3 Rd8 28.Rb7 Rd1 29.Kh2 f6 30.Rc7 Ba1 31.Nh4 Kh7 32.f5?? Be5–+ 33.g3 Bc7 34.fe6 Re1 0–1. elsh1403 – bnono62, kurnik, 2011.

7.Nf3 a6 8.Bd3 A) 8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.Ng5 Nbd7 12.Bb5 Ne8=; B) 8...b6 B1) 9.Nc3 c5 (9...Bb7 10.0–0 c5 11.ba6 Ba6 12.Nb5 Nc6=) 10.0–0 Bb7 11.ba6 Na6 12.Be2 c4=; B2) 9.Ne5 Qc7 (9...ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Ne4=; 9...c5 10.Qf3 Bb7 11.0–0 Ne4 12.Qg4 f5=; 9...Bb7 10.0–0 c5 11.Qf3 Ne4 12.Qg4 f5=; 9...Bd7 10.Nc3 c5 11.0–0 c4 12.Be2 Qe8=; 9...Qd6 10.0–0 Bb7 11.Qf3 Nbd7 12.bc6 Bc6=) 10.0–0 Ne4 11.Nc3 f6 12.Nf3 Nc5=; B3) 9.Be2 Bb7 (9...ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5 Ba6=; 9...Bd7 10.Nc3 Ne4 11.0–0 f6 12.Ne4 de4=; 9...c5 10.0–0 Bb7 11.Ne5 Nbd7 12.Qe1 Ne5=; 9...Ne4 10.0–0 f6 11.Nc3 Qd7 12.Ne4 de4=; 9...Qe8 10.Nc3 Bb7 11.0–0 Qd8 12.f5 Bd6=; 9...Qc7 10.0–0 Nbd7 11.Nc3 Bb7 12.bc6 Bc6=) 10.0–0 Ne4 11.Nc3 Bb4 12.Ne4 de4=; B4) 9.0–0 c5 (9...Bb7 10.f5 Qd7 11.Ng5 g6 12.fg6 fg6=) 10.Ne5 c4 11.Be2 Ne4 12.Bf3 Nd6=; C) 8...Nbd7 C1) 9.Be2 Ne4 (9...ab5 10.ab5 Ra1 11.Ba1 Ne4 12.Nc3 cb5=; 9...Qb6 10.a5 Qd8 11.b6 c5 12.0–0 Ne4+=) 10.0–0 ab5 11.ab5 Ra1 12.Ba1 cb5=; C2) 9.Ne5 Ne5 (9...Ne4 10.0–0 Qc7 11.Be4 de4 12.bc6 bc6=; 9...ab5 10.ab5 Ra1 11.Ba1 c5 12.c4 dc4+=; 9...cb5 10.ab5 Nc5 11.ba6 ba6 12.Nc6 Qc7=; 9...c5 10.ba6 ba6 11.Nc6 Qe8 12.0–0 Bd6=) 10.fe5 Nd7 11.Qh5 g6 12.Qg4 f5+=; C3) 9.0–0 c5 (9...ab5 10.ab5 Ra1 11.Ba1 c5 12.Be2 Qa5=; 9...Nc5 10.Be2 ab5 11.ab5 Ra1 12.Ba1 cb5=; 9...Qc7 10.Nc3 Rd8 11.Qe1 Nc5 12.Be2 cb5=; 9...cb5 10.ab5 Ne4 11.Nc3 Ndc5 12.Be2 Qc7=; 9...Ne4 10.Nc3 Ndc5 11.Be2 Bd7 12.ba6 ba6=) 10.Nc3 ab5 11.Bb5 Qc7 12.Rb1 Nb6=; C4) 9.Nc3 ab5 (9...Nc5 10.Be2 ab5 11.ab5 Ra1 12.Qa1 Nce4=; 9...c5 10.0–0 ab5 11.Bb5 Qb6 12.Rb1 Qc7=) 10.ab5 Ra1 11.Qa1 Nb6 12.0–0 Bd7=; D) 8...Bd7 9.Nc3 Qc7 (9...ab5 10.ab5 Ra1 11.Ba1 c5 12.0–0 c4=; 9...c5 10.0–0 c4 11.Be2 Bb4 12.Nd4 Qb6=; 9...Qe8 10.Ne5 c5 11.Qf3 ab5 12.Nb5 Qd8=; 9...Qa5 10.0–0 c5 11.Ne5 c4 12.Be2 Rd8=; 9...b6 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5=; 9...Bb4 10.0–0 c5 11.Na2 Ba5 12.Ng5 h6=) 10.0–0 ab5 11.ab5 Ra1 12.Ba1 cb5=; E) 8...c5 E1) 9.Be2 ab5 (9...Nbd7 10.0–0 b6 11.Nc3 c4 12.d3 cd3=; 9...c4 10.0–0 ab5 11.ab5 Ra1 12.Ba1 Qa5=; 9...b6 10.0–0 Bb7 11.Ne5 Nfd7 12.Na3 c4=; 9...Ra7 10.0–0 b6 11.Na3 c4 12.d3 Bc5=) 10.ab5 Ra1 11.Ba1 Qa5 12.Bc3 Qb6+=; E2) 9.Nc3 b6 (9...Qa5 10.0–0 b6 11.Ne5 c4 12.Bc4 dc4=) 10.0–0 Bb7 11.ba6 Na6 12.Be2 Nc7=; E3) 9.Ne5 c4 (9...ab5 10.Bb5 Nbd7 11.0–0 Ne5 12.fe5 Nd7=; 9...Ne4 10.Be4 de4 11.Nc3 b6 12.0–0 Bb7=; 9...Bd7 10.Nc3 c4 11.Be2 Bb4 12.0–0 ab5=) 10.Be2 Ne4 11.Nc3 Nc3 12.Bc3 f6+=; E4) 9.0–0 b6 (9...c4 10.Be2 ab5 11.ab5 Ra1 12.Ba1 Bd7=; 9...Nbd7 10.Nc3 ab5 11.Bb5 Qa5 12.Rb1 Rd8=; 9...ab5 10.ab5 Ra1 11.Ba1 c4 12.Be2 Qa5=; 9...Bd7 10.Nc3 c4 11.Be2 Bb4 12.Nd4 Qb6=; 9...Qe8 10.Nc3 c4 11.Be2 b6 12.Ne5 Bd7=) 10.Ne5 c4 11.Be2 Ne8 12.Nc3 f6=.

7.Nf3 a6 8.Be2 A) 8...Bd7 A1) 9.Ne5 ab5 (9...Ne4 10.0–0 ab5 11.ab5 Ra1 12.Ba1 cb5=; 9...Qc7 10.Nc3 Bd6 11.ba6 Na6 12.Ba3 Ba3=; 9...b6 10.Nc3 Bc5 11.Bd3 Qc7 12.0–0 d4=) 10.ab5 Ra1 11.Ba1 cb5 12.0–0 Qa5=; A2) 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Be5 b4+=; A3) 9.Nc3 Bc5 (9...Qc7 10.0–0 Bc5 11.Kh1 Rc8 12.Qe1 Be7=; 9...Qe8 10.Ne5 c5 11.0–0 d4 12.Na2 ab5=; 9...Ne4 10.0–0 f6 11.Ne4 de4 12.Nd4 ab5=; 9...ab5 10.ab5 Ra5 11.Ne5 Ra1 12.Qa1 cb5=) 10.0–0 Qc7 11.Kh1 Rc8 12.Ne5 d4=; B) 8...Ne4 9.0–0 ab5 (9...Nd6 10.Nc3 b6 11.Rf2 Bb7 12.Ne5 c5=; 9...b6 10.Be5 Nd6 11.Nc3 f6 12.Bd6 Bd6=; 9...f6 10.Nc3 b6 11.Bd3 Nc3 12.Bc3 c5=; 9...Qa5 10.Nc3 Bf6 11.Ne5 Qc7 12.Ne4 de4=; 9...Bb4 10.d3 Nd6 11.c3 Ba5 12.Nd4 Bb6=) 10.ab5 Ra1 11.Ba1 cb5 12.Be5 Nc6=; C) 8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Bd7 12.Be2 Nc6=.

7.Nf3 Bd7 8.Be2 a6 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 c5 (11...Qb6!?=) 12.0–0 Qb6 13.Na4 Qa5 14.c4 dc4 15.Nc3 (worse is 15.Bc4 Bb5 16.Bb5 Qb5 17.Bf6 Bf6–/+) 15...Qa1 16.Ra1 Nd5 17.Ra7 Nc3 (better is 17...Bc8!?+/–) 18.Bc3+– (worse is 18.dc3 Bb5 19.Rb7 Bd7+/–) 18...Bc8 19.Ne5 (19.Bc4?! Nd7+/–) 19...f6 20.Nc4 Nd7 21.Bf3 Re8 (21...b6+–) 22.Bb7 Bb7 23.Rb7 Nf8 24.g4 Ng6 25.b6 Bf8 26.Kf2 Ne7 27.e4 Nc6 28.Rc7 Nd4 (28...Nb4+–) 29.b7 Rb8 30.Na5 Nb5 31.Rc8 Nc3 (31...Rb7 32.Nb7 Kf7+–) 32.Rb8 Ne4 33.Ke3 (33.Ke3 Nd6 34.Rf8 Kf8 35.b8Q Kf7 36.Qd6+–) 1–0. Trkn – gpuretic (1625), ICC, 2004.

7.Nf3 Nbd7 8.c4 (8.Be2 c5=) 8...cb5 9.ab5 Nb6 10.Na3 Ne4 11.Be2 Bh4 12.g3 Bf6 13.Ne5 Nd7 14.0–0 Ne5 (14...Be5!? 15.fe5 Qg5=) 15.fe5+= Be7 16.d3 Nc5 17.Qc2 b6 18.Bf3 Bb7 19.Rad1 (19.d4 Ne4=) 19...Bg5 (19...dc4 20.Bb7 Nb7 21.Nc4=) 20.Qf2 (20.Bd4 a6+=) 20...Qd7 (20...dc4 21.Bb7 (worse is 21.dc4 Qc7+=) 21...Nb7 22.Nc4+= (worse is 22.dc4 Qc7+=)) 21.Nc2 (21.d4 Ne4 22.Be4 de4=) 21...a6 22.ba6 Ra6 23.Nb4 (23.cd5 Bd5 24.Bd5 Qd5 25.Nb4 Nd3 26.Nd3+– (26.Nd5 Nf2 27.Rf2 ed5–/+; 26.Na6?! Nf2 27.Rd5 Nh3 28.Kg2 ed5+/–; 26.Rd3?! Qb5 27.Bc3 Ra4+–)) 23...Ra4+= 24.Bc3 Ra3 25.Bd4 Ra4 (25...dc4 26.dc4 Qc7 27.Ra1+=) 26.Nc2 Ra2 27.Bc5 bc5 28.Ra1 Rfa8 (28...Ra1 29.Ra1 dc4 30.dc4 Bf3 31.Qf3–+) 29.Ra2+= Ra2 30.Rb1 Be3 (better is 30...f6!? 31.ef6 Bf6+=) 31.Qe3+= Rc2 32.Qc5 g6 (32...f6 33.Qa7 Bc6 34.Qd7 Bd7 35.cd5 fe5 36.d6+/–) 33.Qb4 (33.Qa7!? Bc8 34.Qd7 Bd7 35.Rb8 Kg7 36.Rd8+/–) 33...Ba6 34.Bd1 Qa7 35.Kh1 Rf2 36.Qb8 Qb8 37.Rb8 Kg7 38.Bb3 dc4 39.Bc4 Bc4 40.dc4 Rc2 41.Rc8 g5 42.h3 Kg6 43.g4 f6 44.ef6 (44.Rc6 Kf7 45.Rc7 Kg6=) 44...Kf6+= ½–½. Kucharkowski,Jens – Porschberg, Freital, 1988.

5.e3 h5

6.Nc3 Bb4 7.Be2 Qd6 (7...Qc7 8.Nh3 Nbd7 9.0–0 Nc5 10.f4 Bd7 11.Ng5) 8.Nf3 Nbd7 9.0–0 0–0 10.Ng5 (10.Rb1 c5 11.Ng5) 10...h4 (10...Nb6 11.bc6) 11.f4 Nc5.

6.Nc3 Bb4 7.Nf3 Bc3 (7...Nbd7!?= 8.Be2 0–0 9.0–0 Qc7 10.Ng5 Nb6 11.d3 h4; 7...Qd6 8.Be2 Nbd7 (8...0–0 9.Rb1 a6 10.Ng5 ab5 11.ab5) 9.0–0 0–0 10.Rb1 c5 11.Ng5 Ne5; 7...0–0 8.Be2 Nbd7 9.0–0 Qb6 (9...Qc7 10.Ng5 Nb6 11.d3) 10.Rb1 Rb8 11.Ng5+= (11.h3 Qc7); 7...Qc7 8.Be2 Nbd7 9.0–0 0–0 10.Ng5 Nb6 11.d3 h4) 8.Bc3+= cb5 (8...Nbd7 9.bc6 bc6 10.Rb1 0–0 (10...a5 11.Be2) 11.Ng5 Qe7) 9.ab5 Qb6 (9...Nbd7 10.Be2+/– Ne4 11.Bb4 Qf6) 10.Bd3 (10.Be2 Nbd7 11.0–0 h4) 10...h4 (10...Nbd7 11.0–0 Nc5) 11.Bd4 (11.Ng5+–) 11...Qd6 12.Qc1 (12.Ba7 b6 13.Bb8 Rb8+/–) 12...Ne4 (12...h3!?+/–) 13.Bg7 (worse is 13.Ra7 Ra7 14.Ba7 Nd7+/–) 13...Rh5 14.Ra4 Bd7 15.Qb2 a6 16.Be5 Qe7 17.Be4 de4 18.Re4 ab5 (18...Bb5 19.Rg4 Qf8 20.Bb8 Rb8 21.Rh4 Rh4 22.Nh4+–) 19.Rg4 Rh8 (19...Qf8+–) 20.Bh8 (20.Bh8 Qf8 21.Rh4+–) 1–0. Anonymous – Anonymous, internet, 2011.

6.Nc3 Bd6 A) 7.Be2 A1) 7...Nbd7 8.Nf3 0–0 (8...Qc7 9.Rb1 0–0 10.0–0 Nb6 11.h3) 9.0–0 (9.Ng5 Ng4 10.f4 e5 11.Bg4) 9...Qc7 10.h3 Nc5 11.Ng5 h4; A2) 7...0–0 8.Nh3 (8.Nf3 Nbd7 9.Ng5 Ne5 10.f4 Nc4 11.Bc4) 8...Nbd7 (8...e5 9.Ng5 Ng4 10.h4 f6 11.Nh3) 9.0–0 (9.Ng5 Ne5 10.Bh5 Nc4 11.Rb1) 9...Qc7 10.f4 e5 11.bc6 bc6; B) 7.Nf3 e5 (7...0–0 8.Be2 Nbd7 9.0–0 Qc7 10.h3 Nc5 11.Ng5) 8.Be2 0–0 9.h3 (9.0–0 e4 10.Nd4 h4 11.h3) 9...Bf5 10.g4 (10.a5 a6 11.g4) 10...Bg6 11.Rg1 Nbd7.

6.Bd3 A) 6...Bd6 7.Nf3 A1) 7...Nbd7 8.Ba3 (8.Nc3 Nc5 9.0–0 0–0 10.Ba3 Qc7 11.bc6) 8...Nc5 9.Bc5 (9.Nc3 Qc7 10.0–0 0–0 11.bc6) 9...Bc5 10.Nc3 Qc7 11.Ng5 e5; A2) 7...0–0 8.0–0 Nbd7 9.Ba3 Nc5 10.Nc3 Qc7 11.bc6= (11.Bc5 Bc5); B) 6...Nbd7 B1) 7.Nc3 e5 8.Nh3 Nc5 9.Ng5 (9.bc6 bc6 10.Ng5 Rb8 11.Rb1) 9...Nfd7 10.f4 Nd3 11.cd3 Nc5; B2) 7.Na3 B21) 7...Nc5 8.Nf3 Bd6 9.0–0 0–0 10.Qe2 Na4 (10...Rb8 11.Bd4) 11.Bf6= (11.Be5 Nc5); B22) 7...Qc7 8.f4 Nc5 (8...e5 9.fe5 Ne5 10.Nf3 Nf3 11.gf3) 9.Nf3 Bd6 (9...h4 10.Be5 Bd6 11.Qe2) 10.Be5 h4 11.Qe2= (11.bc6 bc6); B23) 7...Bd6 8.Nf3 Nc5 (8...0–0 9.0–0 e5 10.Be2 Ne4 11.c4) 9.0–0 0–0 10.Qe2 Na4 11.Bf6= (11.Be5 Nc5); B3) 7.Nf3 B31) 7...Nc5 8.Be5 Bd6 (8...Ng4 9.bc6 bc6 10.0–0 h4 11.h3) 9.Nc3 0–0 10.bc6 bc6 11.Rb1 Nd3; B32) 7...Bd6 8.Ba3 (8.Nc3 Nc5 9.0–0 Qc7 10.Ba3 0–0 11.bc6) 8...Nc5 9.Bc5 Bc5 10.Nc3 0–0 (10...Qc7 11.Ng5) 11.bc6= (11.0–0 Bd6).

6.Be2 cb5 7.ab5 A) 7...Bd6 8.Nc3 Nbd7 9.Nf3 (9.h3 Nc5 10.Nf3 0–0 11.0–0) 9...0–0 (9...Qc7 10.Ng5 Bh2 11.Ra2) 10.Ng5 Nb6 11.0–0 Bd7; B) 7...Qc7 8.Nf3 (8.Nc3 Bd6 9.Nf3 Nbd7 10.h3 0–0 11.0–0) 8...Nbd7 9.Nc3 Bd6 10.h4 (10.h3 0–0 11.0–0) 10...Ng4 (10...0–0 11.Ng5) 11.b6 Qb6; C) 7...Nbd7 8.Nf3 Bd6 9.Nc3 Nb6 (9...Qc7 10.Ng5 Bh2 11.Ra2) 10.0–0 0–0 11.h3+= (11.Ng5 Bd7).

6.Be2 Qc7 A) 7.Nf3 A1) 7...Nbd7 8.Nc3 (8.h3 Bd6 9.Nc3 0–0 10.0–0 Nc5 11.Ng5) 8...Bd6 9.0–0 (9.h3 0–0 10.0–0 Nc5 11.Ng5) 9...0–0 10.Rb1 Nb6 11.d3= (11.bc6 bc6); A2) 7...Bd6 8.0–0 (8.Bf6 gf6 9.Nc3 Nd7 10.g3 Rg8 11.0–0) 8...Nbd7 9.Nc3 0–0 10.Rb1 Nb6 11.d3= (11.bc6 bc6); B) 7.h3 B1) 7...Bd6 8.Nf3 Nbd7 9.Nc3 a6 (9...0–0 10.0–0 Nc5 11.Ng5) 10.bc6 (10.Ng5 ab5 11.ab5) 10...bc6 11.Ba3 Ba3; B2) 7...Bb4 8.Nf3 (8.Nc3 Nbd7 9.Nf3 0–0 10.0–0 Bd6 11.Ng5) 8...Nbd7 (8...0–0 9.Bf6 gf6 10.0–0 Nd7 11.Nc3) 9.Nc3 0–0 (9...Nc5 10.0–0 0–0 11.Na2) 10.0–0 Nc5 11.Na2 Ba5; B3) 7...Nbd7 8.Nf3 Bd6 9.Nc3 (9.0–0 Nc5 10.Nc3 0–0 11.Ng5) 9...0–0 10.0–0 Nc5 11.Ng5 h4; C) 7.h4 C1) 7...Bd6 8.Nc3 (8.Nf3 Nbd7 9.Nc3 0–0 10.Ng5 g6 11.0–0) 8...Nbd7 9.Nh3 (9.Nf3 0–0 10.Ng5 g6 11.0–0) 9...a6 (9...0–0 10.Ng5 g6 11.0–0) 10.Ng5 Ne5 (10...ab5 11.ab5) 11.f4= (11.ba6 ba6); C2) 7...Nbd7 8.Nc3 (8.Nf3 Bd6 9.Nc3 Nc5 10.Rb1 Rb8 11.Ba3) 8...Bd6 9.Nf3 Nc5 10.Ng5 e5 11.bc6 bc6; C3) 7...Bb4 8.Nc3 Nbd7 9.Nh3 Ne5 10.Nf4 0–0 11.0–0 Bd7; C4) 7...c5 8.Nf3 Nbd7 9.Nc3 Bd6 10.a5 0–0 11.Ng5= (11.Rh3 c4); D) 7.Nc3 Nbd7 8.Nf3 (8.h3 Bd6 9.Nf3 0–0 10.0–0 Nc5 11.Ng5) 8...Bd6 9.0–0 0–0 10.Rb1 (10.h3 Nc5 11.Ng5) 10...Nb6 11.d3= (11.bc6 bc6).

6.Be2 Bd6 7.Nc3 0–0 8.Nf3 Nbd7 9.0–0 Qc7 10.h3 Nc5 11.Ng5 h4.

6.Be2 Bd6 7.Nf3 A) 7...Nbd7 8.Nc3 0–0 9.0–0 Qc7 (9...Nc5 10.d4 Nce4 11.Ne5) 10.h3 Nc5 11.Ng5 h4; B) 7...Qc7 8.Ng5 Nbd7 9.Nc3 Bh2 10.a5 h4 11.a6; C) 7...0–0 8.Nc3 Nbd7 9.0–0 Qc7 10.h3 Nc5 11.Ng5 h4.

6.Be2 Nbd7 A) 7.Nc3 A1) 7...Qc7 8.Nf3 (8.h3 Bd6 9.Nf3 0–0 10.0–0 Nc5 11.Ng5) 8...Bd6 9.Rb1 (9.Ng5 Bh2 10.a5 h4 11.a6) 9...0–0 10.0–0 Nb6 (10...Rb8 11.h3) 11.g3= (11.bc6 bc6); A2) 7...Bd6 8.Nf3 Qc7 9.Rb1 (9.0–0 0–0 10.h3 a6 11.Ng5) 9...0–0 (9...Rb8 10.h3 Nc5 11.0–0) 10.0–0 (10.h3 Nc5 11.bc6) 10...Nb6 11.g3= (11.bc6 bc6); B) 7.Nh3 Bd6 8.Ng5 Nc5 9.Nc3 e5 10.d4 ed4 11.ed4; C) 7.Nf3 C1) 7...Bd6 8.Nc3 0–0 9.0–0 Qc7 10.h3 Nc5 11.Ng5 h4; C2) 7...Nc5 8.Nc3 (8.0–0 Bd6 9.Nc3 0–0 10.d4 Nce4 11.Ne4) 8...Bd6 9.0–0 0–0 10.Ng5 (10.d4 Nce4 11.Ne4) 10...Qc7 (10...Ng4 11.Bg4) 11.h4 g6; C3) 7...Qc7 8.Nc3 Bd6 9.h4 (9.0–0 0–0 10.h3 Nc5 11.Ng5) 9...Nc5 10.Rb1 Rb8 (10...0–0 11.bc6) 11.0–0= (11.Ba3 Bd7).

6.Nf3 Bd6 A) 7.Nc3 A1) 7...Qc7 8.bc6 (8.Ba3 c5 9.Be2 0–0 10.0–0 Nbd7 11.h3) 8...bc6 9.Ba3 Ba3 10.Ra3 Nbd7 (10...Na6 11.d4) 11.Ng5 Rb8; A2) 7...0–0 8.Be2 Nbd7 9.0–0 Qc7 10.h3 Nc5 11.Ng5; A3) 7...e5 8.Be2 0–0 9.h3 Bf5 10.g4 Bg6 11.Rg1= (11.a5 Re8); B) 7.Be2 B1) 7...0–0 8.Nc3 Nbd7 9.0–0 Qc7 10.Rb1 (10.h3 Nc5 11.Ng5) 10...Nb6 11.d3 Bd7; B2) 7...Nbd7 8.Nc3 Qc7 (8...0–0 9.0–0 Qc7 10.h3 Nc5 11.Ng5) 9.0–0 0–0 10.Rb1 (10.h3 Nc5 11.Ng5) 10...Nb6 11.d3= (11.bc6 bc6).

6.Nf3 Nbd7 A) 7.Nc3 A1) 7...Nc5 8.Be2 Bd6 9.0–0 0–0 (9...h4 10.Ng5 0–0 11.f4) 10.Ng5 h4 (10...Qc7 11.h4) 11.f4 Qc7; A2) 7...Qc7 8.Be2 Bd6 9.h3 0–0 10.0–0 Nc5 11.Ng5; A3) 7...Bd6 8.Be2 0–0 9.0–0 (9.Ng5 Ng4 10.f4 e5 11.Bg4) 9...Nc5 (9...Qc7 10.h3 Nc5 11.Ng5) 10.Ng5 Qc7 11.h4 g6; B) 7.Be2 B1) 7...Qc7 8.Nc3 Bd6 9.Rb1 0–0 (9...Rb8 10.h3 0–0 11.Ng5) 10.0–0 Rb8 (10...Nb6 11.h3) 11.h3 Nc5; B2) 7...Nc5 8.Nc3 Bd6 9.0–0 0–0 10.Ng5 Qc7 (10...Ng4 11.Bg4) 11.h4 g6; B3) 7...Bd6 8.Nc3 (8.0–0 0–0 9.Nc3 Qc7 10.h3 Nc5 11.Ng5) 8...Qc7 (8...0–0 9.0–0 Qc7 10.h3 Nc5 11.Ng5) 9.0–0 (9.h3 0–0 10.0–0 Nc5 11.Ng5) 9...0–0 10.Ba3 (10.h3 Nc5 11.Ng5) 10...Nc5 11.d4= (11.Ng5 Bh2).

5.Nf3 a6

6.e3 Bd6 7.Be2 ab5 8.ab5 Ra1 9.Ba1 0–0 10.0–0 Bd7 11.Bd4 cb5 12.Nc3 b4 13.Nb5 Bb5 14.Bb5 Nc6 15.Bb2 Qe7 16.Qa1 e5 17.Bc6 bc6 18.Be5 Be5 19.Qe5 Qe5 20.Ne5 c5 21.Ra1 Rb8 (21...g5!?=) 22.Nc6+/– Re8 23.Ra5 c4 (23...Kf8 24.d4 cd4 25.Nd4+=) 24.Nb4 Rd8 25.Nc6 Re8 26.d3 cd3 27.cd3 Kf8 28.Kf1 Rc8 29.Nd4 Rc1 30.Ke2 Rb1 31.Ra8 Ke7 32.Nf5 Kd7 33.Ra7 Kc6 34.Rf7 g6?? (34...Ng4 35.Ng7 Rb2 36.Ke1 Ra2+–) 35.Nd4 Kd6 36.Rf6 (36.Rf6 Ke7 37.Ra6+–) 1–0. marre (1950) – BogdanP (1975), GameColony.com, 2003.

6.e3 Bd7 7.Ne5 ab5 8.d4? (better is 8.ab5 Ra1 9.Ba1=) 8...ba4–+ 9.Nc3 a3 10.Nd7 Nbd7 11.Bc1 Bb4 12.Bd2 0–0 13.f3 Qb6 14.Be2 e5 (14...e5 15.Na2 Bd2 16.Qd2 ed4 17.Qd4 Qc5–+) 0–1. justenest (1940) – pierred (2785), net–chess.com, 2011.

6.e3 Nbd7 7.Be2 Bd6 8.Nc3 e5 9.0–0 0–0 10.bc6 bc6.

6.e3 g6 7.Ne5 Be7 8.Bd3 0–0 9.h4 Bd6 10.h5 ab5 11.ab5 Ra1 12.Ba1 Nbd7 13.Ng4 e5 (13...gh5 14.Bh7 Kh8 15.Nf6 Nf6 16.Qh5+–) 14.hg6 fg6 15.Nh6 Kg7 16.bc6 bc6 17.f4? (better is 17.Be2!?+=) 17...ef4–+ 18.Qg4 Be5 19.Nf5 Kf7 20.Be5 Ne5 21.Nh6 Kg7 22.Qh4? (22.Qg5 Nd3 23.cd3 Nh5 24.Rh5 Qg5 25.Rg5 Kh6–+) 22...Qb6 23.Nf5? (23.Ke2–+) 23...Bf5 24.Qh6 Kg8 25.Bf5 Qb1 26.Ke2 Qb5 27.d3 gf5 28.ef4 (28.Qf4 Qb2 29.Qa4–+) 28...Neg4 29.Qg5 Kf7 0–1. croach (2320) – pierred (2785), net–chess.com, 2011.

4.a4 Be7

5.c4 a6 6.e4 ab5 7.e5 Ne4 8.Qg4 Nc5 (better is 8...Ng5 9.ab5 Ra1 10.Ba1 0–0=) 9.Qg7+– Rf8 10.Qh7 (10.ab5 Ra1 11.Ba1 cb5 12.cb5 h5+–) 10...Ra4 (10...ba4 11.Nf3=) 11.d4 (11.cb5 cb5 12.Nf3 Nc6+/–) 11...Ra1 12.Ba1 Na4 (12...Nb3 13.Bc3 bc4 14.Bc4 Qb6+=) 13.c5 (better is 13.cb5 Qa5 14.Nd2+/–) 13...Qa5= 14.Nd2 Nc5 15.Qb1 (better is 15.Bb2!? Na4 16.Qc2+=) 15...Nb3!–/+ 16.Qb3 (16.Qb3 Qa1 Double attack (16...Qa1 Deflection)) 16...Qa1 17.Ke2 Qd4 18.Ngf3 Qc5 (18...Qd5 19.h4–+) 19.Ne4–/+ Qc4 20.Qc4 bc4 21.Nd6 Bd6 22.ed6 b5 23.Kd2 Na6 24.Kc3 (24.Be2 Nc5 25.Ke3 Nb7–+) 24...Nc5 25.Nd2 Nb7 26.Bc4 bc4 27.Nc4 Rg8 28.g3 Rg5 29.Rd1 Rc5 30.Kb4 Rb5 (30...Rb5 31.Kc3 Nc5–+) 0–1. Baer,Cy (1895) – Fuhr,Michael (1980), RSS7E easy–54, 2007.

5.c4 cb5 6.ab5 b6 7.Nf3 Bb7 8.e3 a6 9.Be2 d6 10.0–0 0–0 11.d3 Nbd7 12.Nbd2 Nc5 13.Bf6 Bf6 14.d4 Nd7 15.Nb3 ab5 16.cb5 Nc5?? 17.Ra8+– Ba8 18.dc5 bc5 19.Nfd2 Be5 20.Nc4 Qg5 21.g3 Qf5 22.f4 Qh3 23.Bf3 d5 24.Ne5 c4 25.Nd4 Qh6 26.Qa4 Bb7 27.Qa7 Bc8 28.b6 f6 29.Nec6 e5 30.Bd5 Kh8 31.Nb5 Qg6 32.Ne7 Qe8 33.Bc4 Bd7 34.b7 Qb8 35.Ra1 Re8 36.Qa8 (36…Bb5 37.Bb5+–; 36.Qb8 Rb8 37.Ra8 g5 38.Rb8 Kg7 39.Rg8 Kh6 40.fg5 fg5 41.Bf7 Be6 42.Nd6 Bf7 43.Nf7 Kh5 44.Rg5) 1–0. hal1958 – CYTO, playchess.de, 2003.

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

5.e3 Qb6 6.a5 Qd8 7.Nf3 h6 8.Be2 0–0 9.0–0 cb5 10.Bb5 a6 11.Be2 Bb4 12.Bc3 Nd5 13.Bb4 Nb4 14.Nd4 N8c6 15.Nb3 Nd5 16.d4 Nf6 17.N1d2 d5 18.c3 Qc7 19.Qb1 Re8 20.Rc1 Rb8 21.Qa2 Qd8 22.Rab1 Nd7 23.c4 Ne7 24.cd5 Nd5 25.Nc4 Qe7 26.Qd2 Ra8 27.Bf3 N5f6 28.Nb6 Nb6 29.ab6 Nd7 30.Na5 Nb8 31.Rc7 Qa3 32.Qc3 Qc3 33.Rc3 Nc6 34.Nc6 a5 35.Ne5 Re7 36.Rbc1 Re8 37.Nc4 Rd8 38.Na3 f5 39.Rc7 Rb8 40.Re7 Bd7 41.Rc7 Rbc8 42.Bb7 Kf8 43.Red7 Rd7 44.Bc8 Rc7 45.bc7 Ke7 46.Be6 1–0. Leterrier – de Lavalette, France, 2000.

5.e3 c5 6.f4 a5 7.Nf3 d5 8.Be2 b6 9.0–0 0–0 10.Qe1 h6 11.Na3 Ne4 12.d3 Nd6 13.e4 de4 14.de4 Ne4 15.Rd1 Nd7 16.Ne5+/– Ra7?? 17.Bf3 Nef6 18.Nc6 (18.Nc6 Qc7 19.Ne7 Kh7 20.Nc6+–) 1–0. pcmvr (2795) – nay (2215), net–chess.com, 2007.

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

5.e3 d6 6.Nf3 =.

5.e3 0–0

6.c4 cb5 7.cb5 a6 8.Nf3= ab5 9.Bb5 Nd5 10.Nc3 Nc3 11.Bc3 d5 12.0–0 Bd7 13.Qb3 Bb5 14.ab5+= Ra1 15.Ra1 b6 16.Ra7 f6 17.d4 h6 18.Nd2 Nd7 19.e4+/– Nb8 20.Qa4 Qc8 21.Bb2 Bd6+= 22.g3 Rf7 23.Rf7 ½–½. Van Esbroeck,Dirk – Reichel,Stefan, corr CiF, 1993.

6.c4 d5 7.cd5 Qd5 8.Nc3 Qd8 9.Be2 cb5 10.ab5 b6 11.Bf3 Nd5 12.Nd5 ed5 13.Qb3! Bb7 14.Ne2 Qd6 15.Ba3 Qe5 16.d4 Qf6 17.Be7 Qe7 18.Bd5 a6 19.0–0 Rd8 20.Bb7 Qb7 21.Rfb1 ab5 22.Ra8 Qa8 23.Qb5 Nd7 24.Nc3 Nf6 25.Qb6 Rc8 26.Qb7!! g6 27.Qa8 Ra8 28.f3 Ra3 29.Nd1 Nd5 30.Kf2 Ra2 31.Rb2 Ra1 32.Ke2 Kg7 33.g3! h5 34.e4! Ne7 35.d5 Kf6 36.Ne3 Ke5 37.Nc4 Kd4 38.d6! Nc6 39.d7! Kc4 40.Rc2 Kb5 41.Rc6!! Ra2 42.Kd3 Ra3 43.Kc2 1–0. mtr – PulveRIZER, internet, 2001.

6.c4 d5 7.Nf3 =+.

6.d4 Bb4 7.c3 Ba5 8.Nd2 d5 9.c4 Ne4=+ 10.cd5?? ed5 11.f3?? Nc3 12.Bc3 Bc3–/+ 13.Rc1 Ba5 14.Bd3 Qe7 15.Qb3?? Qb4 16.Qb4= Bb4 17.Ke2 Bd7 18.e4 a6 19.e5 Bd2 20.Kd2= ab5 21.ab5 Ra2 22.Rc2 Rc2 23.Kc2 Rc8 24.bc6 Rc6 25.Kd2+= Rb6 26.Ne2+/– Bb5?? 27.Rb1+– Bd3 28.Rb6 Ba6 29.Rd6 Nc6 30.Rd5 Kf8 31.Rc5 Be2 32.Ke2 Nd4 33.Kf2 Ne6 34.Rc8 Ke7 35.Ke3 Kd7 36.Rh8 h6 37.f4 f5 38.ef6! gf6 39.Rh6 Ke7 40.Rh7 Kd6 41.Rb7 Kc6 42.Rf7 1–0. Feiertag,Manfred (1770) – Pieleck,Rudi (1770), RSX24E – Chaturanga–1, 2008.

6.Be2 d6 7.Nf3 e5 8.d4 e4 9.Nfd2 Re8 10.c4 d5 11.Nc3 Bb4 12.0–0 Nbd7 13.Qb3 Ba5 14.bc6 bc6 15.Qc2 Ba6 16.Rfe1 Rb8 17.Rab1 Nf8 (17...Nb6!?=) 18.Ba3+= Ne6 (18...Rb1!? 19.Rb1 N8d7=) 19.Rb8 Qb8 20.Rb1 (20.cd5 Be2 21.de6 Bd3 22.ef7 Kf7 23.Qa2 Kg6+/–) 20...Qc8 21.Bb4 (21.Bd6 Nc7+=) 21...Bc7 22.Qb2 Bb8 23.Ba3 h5 (23...Qc7 24.g3=) 24.c5 (24.Qb3!? Qc7 25.Nf1 dc4 26.Qc2+=) 24...Be2= 25.Ne2 Ng5 26.Qc1 (26.Qb7 Qg4 27.Kf1 Bh2 28.Qc6 Qf5=) 26...Qg4 27.Nc3 Bh2 (better is 27...Nf3 28.Nf3 ef3+=) 28.Kf1?? (better is 28.Kh2 Qh4 29.Kg1+/–) 28...Qf5 29.Ke1? (better is 29.Rb7–/+) 29...Ng4–+ 30.Kd1 Qf2 31.Kc2 Ne3 32.Kb3 Rb8 33.Ka2 Nc4 34.Rb8 Bb8 35.Bb2 Nd2 36.Nd1 Qe2 37.Nc3 Qc4 (37...Qc4 38.Ka1 Nb3 39.Kb1 Nc1 40.Bc1 Qd4–+) 0–1. Petrochenko,Maria – Malinicheva,Lidia (2020), St Petersburg Rudenko Memorial (Women), 2009.

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

6.Nf3 d6 =.

5.e3 a6

6.c4 ab5 7.cb5 cb5 8.Bb5 0–0 9.Nf3 d5 10.0–0 Bd7 11.Nc3 Bb4 12.Nd4 Nc6 13.Nc2 Bc3 14.Bc3 Ne4 15.Bb2 Na7 16.Bd3 Nc5 17.Ne1 Qg5 18.f4 Qe7 19.Bc2 Nc8? 20.Ba3+– b6 21.Bb4 Nd6+= 22.a5 Qd8? 23.Qh5 g6 24.Qe5 Nf5? 25.Nf3 Bb5 26.Rfc1 Nd7 27.Qb2 Re8 28.Bf5 ef5 29.Bc3 Bc4 30.Nd4 Nc5? 31.Qb6+– Qb6 32.ab6 Ra1 33.Ra1 Rb8? 34.Rb1 Nd7 35.b7 Nc5 36.Nc6 Rb7 37.Rb7 Nb7 38.Ne5 Bb3 39.Nd7 Nd6 40.Nf6 Kf8 41.Nh7 Ke8 42.Kf2 Ne4 43.Ke1 Ke7 44.Bd4 Bc4+= 45.h3 f6 46.g4 fg4 47.hg4 Kf7 48.g5 fg5 49.Ng5 Ng5 50.fg5 Ke6 51.Bf6 Kf5 52.Kd1 Ke4 53.Kc2 Bd3 54.Kc3 Bc4 55.Be7 Bd3 56.Bd6 Bc4 57.Bf4 Bd3 58.Kb4 Bc4 59.d4 Bd3 60.Kc5 Bc4 61.Kd6 Kf5 62.Ke7 Bd3 63.Kf7 Be4 64.Kg7 Bg2 65.Kh6 Be4 66.Kg7 Bg2 67.Kf7 Be4 68.Ke7 Bg2 69.Kd6 Be4 70.Kc5 Bg2 71.Kd6 Be4 72.Ke7 Bg2 73.Kf7 Be4 ½–½. Niermann,Georg – Nordlohne,Jesko, Vereinsmeisterschaft, 1998.

6.c4 d5 7.d3 ab5 8.ab5 Ra1 9.Ba1 Qa5 10.Bc3= Bb4 11.Qb3 Bc3 12.Qc3 Qa2 13.Na3 0–0 14.Ne2+= dc4? 15.Nc1+– Nd5 16.Na2 Nc3 17.Nc3 cb5 18.Nab5 cd3 19.Bd3 Nc6 20.0–0 Ne5 21.Be2 Bd7 22.Rb1 Bc6 23.Nd6 Rb8 24.Ncb5 b6 25.Na7 Bd7 26.Nab5 f6?? 27.Nc7+– Kf8 28.Na6 Rd8 29.Rb6 Ke7 30.Nc4 Ng6 31.Nb8 Be8 32.Nc6 Bc6 33.Rc6 Rd7 34.f4 Ra7 35.Kf2 h6 36.g3 Nf8 37.Nb6 Rb7 38.Bc4 f5 39.h4 g6 40.Kf3 Kf7 41.e4 fe4 42.Ke4 Kf6 43.Nd5 Kf7 44.Rc7 Rc7 45.Nc7 Kf6 46.Ne8 Ke7 47.Bb5 h5 48.Ke5 Kf7 49.Nc7 Ke7 50.Ba4 Kf7 51.Ne6! 1–0. Bittner – Fricke, 1987.

6.c4 d5 7.Nf3 Bd7 8.Nc3 0–0 9.Be2 Qc7 10.Qb3 dc4 11.Bc4 h6 (11...ab5 12.ab5 Ra1 13.Ba1=) 12.0–0 Rc8 13.b6 Qd8 14.d4 Nd5 15.a5 Nc3 16.Bc3 Be8 17.Rfd1 Nd7 18.Ne5 Nf6 19.f3 Nd5 20.Be1 Bf6 21.e4 Nf4 22.g3 Be5 23.de5 Qg5 24.Bd2 (24.h4!? Qe5 25.gf4 Qf4+–) 24...Nh3+/– 25.Kg2 Qh5 26.Be6! Rd8?? (26...fe6 27.Qe6 Double attack) 27.Bh3+– Qe5 28.Bf4 Qc5 29.Kh1 Qf2 (29...Qh5 30.Bf5+–) 30.Bg2 (better is 30.Bd6!? c5 31.Ra2 c4+–) 30...c5 31.Be3 Qe2 (31...Rd1 32.Rd1 c4 33.Qc3+–) 32.Re1 c4 33.Qa3 (worse is 33.Re2 cb3 34.Rc1 Rac8 35.Rc8 Rc8+–) 33...Qc2 34.Rec1 (better is 34.Bf1!? Qb3 35.Qb3 cb3+–) 34...Qe2 35.Re1 Qc2 36.Bf1 Rac8 37.Rec1 Qb3 38.Rc4! Qa3 (38...Rc4 39.Qb3) 39.Ra3 Rc4 40.Bc4 Bc6 41.Rd3 Rd3 42.Bd3 f6 43.Bc4 Kf8 44.Bc5 Ke8 45.Kg2 1–0. Saveliev,Dmitri (2105) – Tsai,Roman (1815), Uliyanovsk RUS, Students Ch, 2013.

6.Nf3 ab5 7.ab5 Ra1 8.Ba1 cb5 9.Bb5 Qa5 10.Nc3 Bb4 11.Qb1 0–0 12.Ne5 Nd5 13.Nc4 Qa7 14.Nd5 ed5 15.Bd4 Bc5 16.Bc5 Qc5 17.d4 Qc7 18.Nd2 b6 19.0–0 Ba6 20.c4 dc4 21.Nc4 d5 22.Ne5 Rd8 23.Rc1 Qb7 24.Nc6 Nc6 25.Bc6 Qb8 26.Bb5 Bb5 27.Qb5 Rd6 28.Rc7 g6 29.Re7 f6 30.Re8 1–0. Schirmer – Heldwein, corr, 1984–85.

5.e3 cb5

6.ab5 b6 7.Nf3 0–0 8.Be2 Bb7 9.0–0 d5 10.d4 Ne4 11.Nbd2 Nd2 12.Qd2+= a6 13.ba6 Na6 14.Rfc1 Bb4= 15.c3 Bd6 16.Bd3 g6 17.Qe2 Nc7 18.Ra8 Na8 19.e4 de4= 20.Be4 Be4 21.Qe4 Bc7 22.c4+/– Qb8 23.Ra1 Re8 24.d5 e5 25.Qh4 b5 26.c5 h5 27.d6 Bd8 28.Qe4 Bf6 29.Ne5 Bg7 30.d7 1–0. Buss,Michael – Esposito,C, corr USCF, 1989.

6.ab5 Qb6 7.Bd4 Bc5 8.Bf6 gf6 9.Qg4 f5 10.Qg7 Rf8 11.Qh7 Be7 12.Nc3 Bf6 13.Qh6 Bc3 14.dc3 Qc5 15.Qf6 e5 16.c4 Rg8 17.Nf3 Qb4 18.Kd1 d6 19.Ng5 Rf8 20.Be2 Nd7 21.Qf5 Nb6 22.Qd3 Bd7 23.Ne4 Ke7 24.f4 f5 25.Nc3 1–0. marus1 – phophos, internet, 2001.

6.ab5 d5 7.Bd4 =.

6.Bb5 a6 7.Bd3 Nc6 8.f4 h6 9.Nf3= d5 10.0–0 Qc7 11.Ne5 Ne5 12.Be5 Qd7 13.a5+= Qc6 14.Nc3 0–0 15.Qf3 Nd7 16.Bd4 Nc5 17.f5 Nd3 18.f6 Bd8 1–0. pcmvr (2110) – daphatmon (2120), net–chess.com, 2006.

4.a4 g6

5.c4 d5 6.e3 =.

5.e3 Bg7 6.Nf3 0–0 7.c4 b6 8.Be2 Bb7 9.0–0 c5 10.Qc2 d6 11.d3 Nbd7 12.Nbd2 Re8 13.Nb3 a6 14.d4 Be4 15.Qc1 ab5 16.Nbd2 bc4–/+ 17.dc5 Nc5 18.Qc4 Bc6–+ 19.Bd1 Qd7 20.Qh4 e5 21.Nc4 Na4 22.Ba4= Ra4 23.Ra4 Bf3 24.Nb6+= Qc7 25.gf3 Qb6 26.Qb4 Qc6 27.e4 Bf8 28.Qc4 Qd7 29.Rfa1 d5 30.Qb3?? Nh5?? 31.Ra7 Qh3+= 32.Qd5 Nf6?? 33.Qf7 Kh8 34.Qf6 Kg8 1–0. Laurent,Rudolf – Kemilae, Oberpfalz–ch M2, 2001.

5.e4 d5 6.e5 Ne4 +=.

5.e4 d6 6.Nf3 =.

5.e4 Bg7 6.e5+= Nd5 7.c4 Ne7 8.f4 0–0= 9.Nf3 d6 10.d4 de5 11.fe5+= c5 12.dc5 Qd1= 13.Kd1 Rd8 14.Kc2 Nd7 15.Bd4 Nf5=+ 16.Bf2 Ne5 17.Ne5 Be5 18.Nc3 Bd7 19.Rd1= Be8 20.Rd8 Rd8 21.Bd3 Nd4= 22.Bd4 Bd4 23.Be4 Rb8 24.c6 bc6 25.bc6 Rc8 26.Nb5 Bc5 27.c7 Bb5 28.ab5 Rc7 29.Bc6 a6 30.Rd1 ab5=+ 31.cb5 Kf8 32.Kd3 Ke7 33.Ke4 h5 34.Ra1 Ra7 35.Ra7 Ba7 36.Kf3 f5–/+ 37.h3 Kf6 38.Be8 h4 39.g4 hg3–+ 40.Kg3 g5 41.Kf3 e5 42.Bd7 e4 43.Ke2 f4 44.Bg4 Ke5 45.Bh5 Kd4 46.Bg4 Kc5 47.Bf5 Kd4?? 48.Bg4 Bb6 49.Bh5 f3?? 50.Bf3= ef3 51.Kf3 Kc5 52.h4 gh4 53.Kg4 Bd8 54.Kh3 Kb5 55.Kg2 Kc4 56.Kh3 Kd3 57.Kg2 Ke3 58.Kh2 Ke2 59.Kg2 Bf6 60.Kg1 Kf3 61.Kh2 Kg4 62.Kg2 Be5 63.Kh1 ½–½. Streit,Bodo (1750) – Richter,Thomas (1615), Landesliga West2, 2002.

5.c4 Bg7

6.d4 0–0 7.e3 Re8 8.Nf3 d5 9.Be2 Nbd7 10.Nbd2 a6 11.0–0+= ab5 12.ab5 Ra1 13.Qa1 Qc7 14.Rc1+/– Ne4 15.Ne4 de4 16.Nd2 f5 17.g3 c5 18.Nb3 b6 19.Rd1 Bb7 20.dc5 Bb2 21.Qb2 Nc5 22.Nc5 bc5 23.Qd2 Kf7 24.Qd7 Qd7 25.Rd7 Re7 26.Rd6 Rc7 27.Kf1 Ke7 28.Rd2 Rd7 29.Rd7 Kd7 30.Kg2 Ke7 31.Kh3 g5 ½–½. Schwichtenberg,Juergen – Gulla,Rainer, Karl Mala mem op, 2003.

6.Nf3 0–0 7.g3 d5 8.c5 Nbd7 9.d4 Re8 10.Bg2 e5 11.de5 Ne4 12.0–0 Ndc5 13.Nbd2 Qb6 14.Qc2 cb5 15.Bd4 Bf5 16.Ne4 Be4 17.Qc5 Qc5 18.Bc5 f6 19.ab5 b6 20.Bb4 fe5 21.Nd2 Bg2 22.Kg2 e4 23.Rac1 d4 24.Rc4 e3 25.Nb3 Rad8 26.f3 d3 27.ed3 Rd3 28.Nc1 Rd5 29.Re1 Rb5 30.Bc3 Bc3 31.Rc3 Rb2 32.Re2 Re2 33.Ne2 a5 34.Rb3 Re6 35.Kf1 a4 36.Rb4 a3 37.Ra4 Rf6 38.f4 g5 39.Ra3 gf4 40.Nf4 b5 41.Ke2 1–0. hal1958 – SurferPhil, playchess.de, 2002.

4.c4 a6

5.a4 Be7 6.e3 0–0 7.Nc3 ab5 8.cb5 d5 9.Nf3 Nbd7 10.d4 c5 11.Be2 b6 12.0–0 Bb7 13.Ne5 Qc7 14.f4 Rfc8 15.Rc1 c4 16.Ra1 Ra7 17.g4 Rca8 18.h4 Bb4 19.h5 Bc3 20.Bc3 Ne4 21.Be1 Ne5 22.fe5 Qe7 23.Bf3 Qg5 24.Be4 Qe3 25.Kh2 de4 26.Bf2 Qd3 27.Qc1 Ra4 28.Ra4 Ra4 29.Qf4 Ra3 30.Bg3 f5 31.ef6+/– Ra2? 32.Kh3+– Qd2 33.f7 Kf8 34.Qb8 Ke7 35.f8Q Kd7 36.Qb7 1–0. elsh1403 – radikal, kurnik, 2011.

5.bc6 bc6 6.Nc3 d5 7.e3 Be7 8.Qa4 Bd7 9.Qb3 0–0?? 10.Qb7+– c5 11.Qa8 Qb6 12.Ba3?? Bc6–+ 13.Rb1 Qb1 14.Nb1=+ Ba8 15.Nf3 Bb7 16.Nc3 Nbd7 17.Be2 Rb8 18.0–0 h6 19.Rb1 Bc6 20.Rb8= Nb8 21.Ne5 Bb7 22.Bf3 Bd6 23.d4+= cd4 24.Bd6 dc3 25.Bb8 Nd7 26.Bd6 (26.Bd6 c2 27.Nd3 dc4 28.Nc1 (28.Bb7?? cd3 29.h4 d2–+) 28...Bf3 29.gf3+/–; 26.Nd7?? c2 27.Be2 c1Q 28.Bf1 dc4–+) 1–0. mr (2260) – rhand (2180), net–chess.com, 2008.

5.a4 ab5

6.ab5 cb5?? 7.Ra8+– (7.Ra8 Na6 8.cb5+–) 1–0. ludice (1705) – zenel (1690), kurnik, 2011.

6.cb5 cb5 7.ab5 Ra1 8.Ba1 Qa5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 a6 4.c4 ab5 5.cb5 c5 6.a4 cb5 7.ab5 Ra1 8.Ba1 Qa5).

6.cb5 cb5 7.ab5= Ra1 8.Ba1 Be7 9.Nf3 Qa5 10.e3?? Qa1–+ 11.Qb3 0–0 12.Be2 d5 13.0–0 Qa5 14.Nc3 Nbd7 15.Nd4 Nc5 16.Qc2 Nce4 17.Nb3 Qc7 18.Nd4 Nc3 19.dc3 Ne4 20.Bd3 f5 21.Be4 fe4 22.Rc1 Bf6 23.Nb3 b6 24.Qd2 Bd7 25.Nd4 Bd4 26.cd4 Qa7 27.Qb4 Qa5 28.Rb1 Qb4 29.Rb4 Rc8 30.h3 Rc1 31.Kh2 Rc2 32.Kg3 Kf7 33.f4 ef3 34.gf3 Rc3 35.Kf4 Rc4 36.Rb3 Kf6 37.e4 Rd4 38.Kg3 de4 39.f4 g6 40.h4 Rd5 41.Re3 Rd3 42.Kf2 Re3 43.Ke3 Kf5 44.Kd4 Bb5 (44...Bb5 45.Ke3 Bd3–+) 0–1. HeresJhonny – LouisFriend, Caissa.com, 2004.

6.cb5 d5 7.e3 Be7 8.Nf3 0–0 9.Nc3 (9.Be2 Nbd7=) 9...c5 10.Bd3 Nbd7 11.Bb1 b6 (11...e5 12.d4 cd4 13.ed4–/+) 12.d4 Bb7 13.0–0 h6 14.Qd3 Re8 15.Ne5 c4 16.Qc2 Nf8 17.f4 N6d7 (17...Qc7 18.Kh1=) 18.Rf3 (18.Nc6 Qc7=) 18...f5 19.Ba3 Ne5 20.fe5 Ba3 21.Ra3 g5 22.Rh3 Kg7 23.Qe2 (better is 23.Ne2=) 23...Nd7?? (better is 23...g4 24.Rh5 Qe7–/+) 24.Qh5+/– Rh8 25.g4 fg4?? (better is 25...Qe8 26.gf5 Qh5 27.Rh5 Kf7+/–) 26.Qg6+– Kf8 27.Ra2 (better is 27.Rh6 Rg8 28.Qe6+–) 27...Nf6?? (better is 27...Qe8 28.Rh6 Qg6 29.Rg6 Ke7 30.Rg7 Kd8 31.Rg5 Kc7+/–) 28.Rf2!! gh3 29.Rf6 (29.Rf6 Qf6 30.Qf6 Ke8 31.Qe6 Kf8 32.Qd6 Kg8 33.Qg6 Kf8 34.e6 Rh7 35.Qh7 Ke8 36.Qd7 Kf8 37.Qf7) 1–0. Kuhn,Heinz (1675) – Conrad,Egon (1640), GER Cup Amateur GrC 1st, 2000.

4.c4 cb5

5.cb5 b6 6.Nf3 Bb7 (6...d5 A) 7.e3 Bd6 (7...a6 8.Nc3 Bd6 9.ba6 Na6 10.Nb5 Be7=) 8.Be5 0–0 9.Nc3 Be5 10.Ne5 d4=; B) 7.Nc3 Bd6 (7...a6 8.e3 Bd6 9.ba6 Na6 10.Nb5 Be7=) 8.e3 0–0 9.Be2 a6 10.0–0 e5=; 6...a6 7.e3 d5 8.Nc3 Bd6 9.ba6 Na6 10.Nb5 Be7=) 7.e3 (7.Nc3 d5 (7...a6 8.e3 Bb4 9.Be2 ab5 10.0–0 0–0=) 8.e3 Bd6 9.d4 0–0 10.Bd3 Qe7=) 7...d5 (7...a6 8.Be2 Bc5 9.0–0 0–0 10.Nc3 ab5=; 7...Be7 8.Be2 0–0 9.Nc3 a6 10.0–0 ab5=) 8.Nc3 (8.Be2 Bd6 9.0–0 0–0 10.Be5 Be5=) 8...Bd6 9.d4 Qc7 (9...0–0 10.Bd3 Qe7=) 10.Rc1 Qe7 11.Bd3 0–0 12.0–0 Nbd7 13.Qa4 h6 14.Ne2 (14.Rc2 a6+=) 14...Nh7 (14...a6 15.ba6 Ba6 16.Ba6=) 15.Nf4 Ng5 16.Ng5 Qg5 (16...hg5!? 17.Ne2 a6=) 17.Ba3+/– Ba3 18.Qa3 Rfc8 19.Rc8 Bc8 20.Rc1 Qd8 21.Qd6 Bb7 (better is 21...Qf8!? 22.Qc6 Rb8+/–) 22.Rc7+– Bc8 23.e4 de4 (23...Qf8 24.Qc6 (24.Rd7?! Bd7 25.Qd7 de4 26.Be4 Rd8+=) 24...Qd8 25.ed5+– (25.Qa8?! Qc7 26.ed5 Qc1 27.Bf1 Qf4 28.Qc8 Nf8+–)) 24.Be4 (24.Be4 Rb8 25.Bc6+–) 1–0. Buss,Michael – Piegeler,Wilhelm, corr ICCF TT/40–23, 1992.

5.cb5 Bc5 6.e3 d5=+ 7.Nf3 0–0 8.Qc2 Nbd7=+ 9.Be2 b6 10.0–0 Bb7 11.d4 Bd6 12.Nbd2 Rc8 13.Qa4 Bb8 14.Ba3 Re8 15.Rac1 e5 16.de5 Ne5 17.Rc8 Qc8 18.Rc1 Qf5 19.Nd4 Qd7 20.Nc6 Bc6+= 21.bc6 Qc7 22.g3 Re6 23.Qb4=+ h6 24.Bb5 Kh7 25.Nb3 a6 26.Ba6 Rc6 27.Rc6 Qc6 28.Nd4 Qc7 29.Qb1 g6 30.Nb5 Qd7 31.Qc2 Qh3 32.Nd4 Nfg4=+ 33.f4 Ne3–/+ 34.Qe2 N5g4 35.Bb7=+ h5 36.Bc1= h4?? 37.Be3 hg3 38.Qg2?? gh2–+ 39.Qh2 Nh2 (40.Bd5 Qe3 41.Kh2 Qd4 42.Bf7 Qf4 43.Kg2 Qf7–+; better is 39...Qh2!? 40.Kf1 Ne3 41.Ke1 Qa2 42.Ne2–+) 0–1. Huelle,Gunter – Kinder,Jan, Leipzig VfB op 4th, 1997.

5.cb5= Be7 6.e3 d6 7.Nf3 0–0 8.Be2 e5 9.0–0 Re8 10.a4 Bf5 11.Nc3 h6 12.d3 Nbd7 13.e4 Bg6 14.Nh4 Bh7= 15.g3 Nc5 16.Nf5 Bf5=+ 17.ef5 Qd7 18.g4 d5 19.f3 d4 20.Ne4 Nd5 21.Bc1 Ne4 22.de4 Nc3 23.Qd3 Rac8 24.Kh1 Ne2 25.Qe2 d3 26.Qe1 Rc2 27.Bd2 Rec8 28.Rc1 Ra2 29.g5 Bg5 30.Bg5 hg5 31.Rf2?? Rcc2 32.Rcc2 Rc2 33.Qe3?? d2 34.Kg2 (34.Rd2 Qd2 35.Qd2 Rd2 36.b6–+) 0–1. Bulcourf,Carlos – Labollita,Martin, Buenos Aires Intercoop, 2003.

5.cb5 a6

6.a4 ab5 7.ab5 Ra1 8.Ba1 Be7 9.e3 (9.Nf3 0–0 (9...d6 10.e3 0–0 11.d4 Ne4 12.Bd3 Qa5 13.Nbd2=; 9...d5 10.e3 Nbd7 11.Be2 Bd6 12.0–0 e5 13.Qc2=) 10.e3 (10.Bf6 Bf6 11.e4 d6 12.Be2 e5 13.Bc4=) 10...d6 11.Be2 e5 12.0–0 Bf5 13.Nc3=) 9...b6 (9...d6 10.Be2 (10.Nf3 0–0 11.Be2 e5 12.0–0 Bf5 13.Nc3=) 10...0–0 11.Nf3 e5 12.0–0 Bf5 13.Nc3=; 9...0–0 10.Be2 (10.Nf3 d5 11.Be2 Nbd7 12.0–0 Bd6 13.d4=) 10...d6 11.Nf3 e5 12.0–0 Bf5 13.Nc3=) 10.Nf3 (10.Be2 0–0 11.Nf3 d6 12.0–0 Bb7 13.Nc3=) 10...0–0 (10...d6 11.Bf6 Bf6 12.d4 Bb7 13.Bd3=) 11.Be2 (11.Bf6 Bf6 12.d4 Bb7 13.Bd3=) 11...Qc7 (11...Bb7 12.0–0 d6 13.Nc3=) 12.0–0 Bb7 (12...d6 13.Qc1=) 13.Nd4 (13.Qc1 Rc8 14.Qc7 Rc7=) 13...Nd5 14.f4 d6 15.e4 (15.Nc3 Rc8=) 15...Nf6 (15...Nf4 16.Rf4 e5 17.Rf1 ed4 18.Bd3=) 16.d3= Nbd7 17.Kh1 g6 (17...Rc8 18.Bf3=) 18.f5 (18.Qd2!?+=) 18...e5+= 19.fg6 (19.Nf3 gf5 20.ef5 Ra8+=) 19...ed4 (19...fg6? 20.Ne6 Qb8 21.Nf8 Qf8 22.Nc3+–) 20.gh7 Kh7 (20...Nh7!? 21.Bd4 d5–/+) 21.Bd4= Rg8 22.Nd2 (22.Qe1 Rg6=) 22...Kg7 (22...d5 23.Rf5 de4 24.Ne4+=) 23.Nf3 (23.Rf5 Kf8=) 23...Kf8+= 24.Qd2 Ne5 (24...Ke8 25.Rc1 Qd8 26.Qc3–/+) 25.Ng5 (25.Rc1 Qd8=) 25...Bd8 (25...Ke8 26.Nf3–/+) 26.Qf4 (26.Bh5 Ke8 27.Ne6 Qd7 28.Nd8 Qd8= (worse is 28...Nh5 29.Nb7 Qb7 30.Qh6+/–)) 26...Qe7 (26...Ke8 27.Nf3 Nfg4 28.Rc1–/+) 27.Bb2 Rg7 28.Ba3 Ne8 29.Nf3 Nf3 30.Rf3 Qf6–/+ 31.Qf6 Bf6 32.Bd6 Nd6 33.Rf6 Ke7 34.Rf1 Nb5 35.Rb1 Nc3 36.Rb6 Be4 37.de4 Ne2 38.g3 Ng3 ½–½. Zahn,Richard – Weis,Norbert, Bad Wildbad op, 1999.

6.e3= ab5 7.Bb5 Be7 8.Nf3 0–0 9.0–0 d6 10.a4 Bd7 (10...e5 A) 11.Qe2 Qb6 (11...Na6 12.Nc3 Bg4 13.e4 Nc5 14.h3 Bf3=; 11...Nc6 12.e4 Bg4 13.Rc1 Rc8 14.Na3 d5=; 11...Bg4 12.e4 d5 13.d3 d4 14.h3 Bf3=) 12.d4 e4 13.Nfd2 Bg4 14.f3 ef3=; B) 11.d3 Bg4 (11...Nc6 12.Nbd2 Be6 13.d4 e4 14.Ne4 Ne4=) 12.Nbd2 Na6 13.h3 Be6 14.Ng5 Bc8=) 11.Nc3 (11.Qc2 Bb5 12.ab5 Ra1 13.Ba1 Qa5 14.Bf6 Bf6=; 11.Qe2 Nc6 (11...e5 12.e4 Nc6 13.Rc1 Qb6 14.Na3 Rfc8=; 11...Bb5 12.ab5 Ra1 13.Ba1 Qc7 14.e4 Rc8=) 12.Rc1 Na5 13.Ra3 e5 14.d4 e4=; 11.d3 Nc6 (11...e5 12.Bd7 Nbd7 13.Nbd2 Ra6 14.Qb1 Qa8=; 11...Bb5 12.ab5 Ra1 13.Ba1 Qd7 14.Qb3 Rc8=) 12.Qd2 Na5 13.Qc2 Bc6 14.e4 d5=) 11...Na6 (11...Nc6 12.Rc1 Qa5 13.Qb3 d5 14.Ne2 Qb6=; 11...Qa5 12.Qb3 Rc8 13.Rfc1 Bc6 14.Nd4 Nbd7=; 11...Qc7 12.e4 Nc6 13.d4 d5 14.e5 Ng4=) 12.d4 (12.Qe2 d5 13.Ne5 Bb5 14.ab5 Nb4=) 12...Nc7 (12...Nb4 13.Qb3 Nc6 14.Bd3 Na5=) 13.Qb3 (13.Bd3 Ncd5 14.Qb3 Bc6=) 13...Bb5 (13...Nb5 14.ab5 Qb6=) 14.Nb5 (14.ab5 d5=) 14...Nb5 15.Qb5 b6 16.Bc3 (16.Rfc1 Ra5 17.Qc6 Ra7=) 16...Nd5 (16...Qd7 A) 17.Qb6? Rfb8 (17...Ra4?! 18.Ra4 Qa4 19.Ra1=) 18.Qb8 Rb8–+; B) 17.Rfc1=) 17.Bd2 Qb8 18.Rfb1 f5 19.Ne1 (19.Rc1 Qe8=) 19...Rc8 (19...Qe8!?=) 20.a5+= ba5?? (better is 20...Rf8+=) 21.Qd7+– (21.Ra5 Qb5 22.Rbb5 Kf7+=; 21.Ba5 Qb5 22.Rb5 Rab8 23.Rb8 Rb8+=) 21...Nb4 22.Qe6 Kf8 23.Qf5 Bf6 24.Ra5 Qc7 25.Ra8 Ra8 26.Rb4 1–0. Laine,Erkki – Bluett,N, Haifa ol (men), 1976.

6.e3= d5 7.Nf3 =.

5.cb5 d5

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

6.Nf3 Bd6 7.e3 =+.

6.Nf3 Nbd7 7.Nc3 Bd6 8.e3 0–0 9.d4 Ne4 10.Ne4 de4 11.Nd2 Qa5 12.Qc2 Bb4 13.a3+= Bd2 14.Qd2 Qd2 15.Kd2+/– Nb6 16.a4 Bd7 17.a5 Nd5 18.Bc4 Rfc8 19.Rhc1 Nc7 20.b6 ab6 21.ab6 Ra1 22.Ra1 Na8 23.Be2 Nb6 24.Ra7 Bc6 25.Ba3 g6 26.Bc5 Nd5 27.Bd6 Rd8 28.Ba3 e5 29.Bb2 ed4=+ 30.Bd4 Nf4 31.Ke1 Ne2 32.Ke2 Bb5 33.Kd2 Ba6 34.f3 ef3 35.gf3 Kf8 36.Ke1 Ke8 37.h3 f5 38.f4 Kd7 39.Kf2 Kc7 40.Be5?? Kb6–+ 0–1. Landgraf,M – Andersson,Lars H, corr SOK–90–53, 1991.

4.c4 d5

5.a4 cb5 6.cb5 a6 7.Nc3 Bd7 8.e3 ab5 9.ab5 Ra1 10.Qa1 Bb4 11.Nf3 0–0 12.Be2 Qb6 13.Qb1 Bc3 14.Bc3 Ne4 15.Bd4 Qa5 16.Qb2 f6 17.0–0 Be8? 18.d3+– Nd6 19.Bc5 Qc7?? 20.d4 Nd7 21.Rc1 Nc5 22.dc5 Nc4 23.Bc4 dc4 24.Rc4 Bf7 25.h3 e5 26.Rc1 Rc8 27.Qb4 Bd5 28.Nd2 f5 29.Nc4?? e4 30.Nb6 Rd8 31.Nd5 Rd6?? 32.Nc7 (32.Nc7 Rd7 33.c6 bc6 34.bc6+–) 1–0. elsh1403 – misan38, kurnik, 2011.

5.a4 d4 6.Nf3 Bc5 7.e3 de3 8.fe3 0–0 9.Be2 Nbd7 10.0–0 Qc7 11.d4 Be7 12.Nbd2 (12.Bd3 c5+=) 12...c5 (better is 12...Ng4!? 13.Qb3 Bg5+=) 13.Qb3 b6 14.Rae1 Bb7 15.Bd3 Rad8 16.a5 h6 (16...ba5 17.Ra1+=) 17.ab6 ab6 18.Ra1 Bd6 19.Rfe1 e5 (19...cd4 20.ed4 (20.Bd4? e5–+) 20...Ra8 21.Ba3=) 20.Qc2 (20.d5 Ra8+=) 20...Rfe8 (20...Bf3!? 21.Nf3 Rfe8 22.de5 Ne5 23.Be5 Be5=) 21.d5+= Ra8 22.e4 Nf8 23.Nh4 Qe7 24.Nf5 Qd8 25.Ra8 Ba8 26.Ra1 Qd7 (26...Bb7!?+/–) 27.Nf3 Ng6 28.Ra6 Rb8? (28...Bc7 29.Ra7 Qd8 30.Qb1+/–) 29.g3 (better is 29.Qa4 Bb7 30.Rb6+–) 29...Ne7?? (better is 29...Qd8+/–) 30.Nd6+– Qd6 31.Be5 (31.Ne5?! Qc7+–) 31...Qd8 32.Bb8 Qb8 33.e5 Nd7 34.Qe2 Bb7 35.Ra1 (better is 35.e6 Nf8 36.Rb6 fe6 37.Re6 Nd5+–) 35...Ng6 (35...Nd5 36.cd5 Bd5 37.Be4+–) 36.Bg6 (better is 36.e6!? Ndf8 37.e7 Ne7 38.Qe7 Ng6 39.Bg6 fg6+–) 36...fg6 37.e6 Nf6 38.Qe5 Qf8 39.Nh4 (39.Ra7!? Bd5 40.cd5 c4+–) 39...Kh7 (39...g5 40.e7 Qe8 41.Nf5+–) 40.e7 (40.Ra7 Qc8+–) 40...Qf7 (40...Qe8+–) 41.Rf1 Qe8 42.Rf6 gf6 43.Qf6 g5 44.Qg6! (44.Qg6 Qg6 45.Ng6 Kg6 46.e8Q Kf6 47.d6 Bc8 48.Qc8 Ke5 49.d7 h5 50.d8Q h4 51.Qg4 hg3 52.Qe7#) 1–0. Dumontelle,Joe – Somer,T, Sept, 1979.

5.a4 dc4

6.e3 cb5 7.ab5 b6 8.Bc4 Bb7 9.Nf3 Nbd7 10.d4 Bb4 11.Nbd2 Ne4 12.0–0 Nd2 13.Nd2 Qg5 14.Nf3 Qd8 15.Be2 Nf6 16.Qb3 Be7 17.Ne5 0–0 18.Bf3 Bf3 19.Nf3 Qd5 20.Qd5 Nd5 21.Rfc1 h6 22.h3 Nb4 23.Ne5 Bd6 24.Ba3 Rfd8? 25.Bb4+– Bb4 26.Nc6 Bd2 27.Rc2 Ba5 28.Nd8 Rd8 29.Rc7 Rd5 30.Ra7 Rb5 31.Rb7 Rb2?? 32.Ra5! ba5 33.Rb2 a4 34.Ra2 a3 35.Ra3 Kh7 36.Kh2 Kg6 37.Kg3 Kf6 38.Kf4 g6 39.g4 g5 40.Ke4 Kg6 41.f4 f5 42.gf5 ef5 43.Ke5 g4 44.hg4 fg4 45.Ra1 h5 46.f5 Kg5 47.f6 g3 48.f7 h4 49.f8Q Kg4 50.Qg7 Kh3 51.Kf4 Kh2 52.Ra2 Kh1 53.Kf3 h3 54.Qg3 h2 55.Qg2 (55.Rh2) 1–0. elsh1403 – alinb (1850), kurnik, 2011.

6.e3 cb5 7.ab5 b6 8.Qf3 Qd5 9.Bc4 Qf3 10.Nf3 Bb7 11.d4 Bb4 12.Bc3 Bd6 13.Nbd2 Nd5 14.Bb2 Nd7 15.0–0 0–0 16.Ba3 Ba3 17.Ra3 Nb4 18.Rb1 a5 19.ba6 Na6 20.Bb5 Nab8 21.Ra8 Ba8 22.Rc1 Rd8 23.Rc7 Nf6 24.Ne5 (24.Ne5 Rf8 25.Ndc4+–) 1–0. miehnekort – ar_shtein, Yahoo, 2005.

6.e3 cb5 7.ab5 Nbd7 8.Bc4 Be7 9.Nf3+= Nb6 10.Be2 0–0 11.0–0 Bd7 12.Nc3 Nfd5 13.Nd5 Nd5 14.Bd4 b6 15.Ne5 Bf6 16.f4 Be5 17.fe5+– Qe7 18.Bd3 h6 19.Rf6 Rfd8? 20.Qh5?? gf6–+ 21.ef6 Nf6?? 22.Qh6+– e5 23.Rf1 Bb5= 24.Qg5 Kf8 25.Qh6 Kg8 26.Bb5 Ne4?? 27.Bc4+– Rd6 28.Qh5 Ng5 29.Rf5 (29.Rf5 Re8 30.Rg5 Qg5 31.Qf7 Kh8 32.Qe8 Kh7 33.Be5 Rd8 34.Qf7 Kh6 35.Bf4 Qf4 36.Qf4 Kg6 37.Qg4 Kf6 38.Qh4 Kg6 39.Qd8 b5 40.Qg8 Kf5 41.Qf7 Kg5 42.Bb5 a5 43.Be8 a4 44.Qf4#) 1–0. Brauer,Christian – Neiderwitz, corr, 1976.

6.e3 cb5 7.ab5 Be7 8.Bc4= 0–0 9.Nf3 Nbd7 10.d4 Nb6 11.Be2 Bd7 12.0–0 Nfd5 13.Nc3 Bf6 14.Nd5 Nd5 15.Qb3 Qe8 16.Ba3+/– Be7 17.Ne5 Ba3 18.Ra3 Qe7 19.Rfa1+– a6 20.ba6 ba6 21.Ra6 Rab8 22.Qa3+– Qd8 23.Rd6 Nb6?? 24.Bb5 Qc7?? 25.Rd7 Nd7 26.Nd7 Rb5 27.Qf8 (27.Nf8 Qb8 28.Qd3 Kf8 29.Qh7 Ke7+–) 1–0. toll (1640) – Okeydokey (1800), ICC, 2003.

5.cd5 cd5

6.a4 Be7 7.e3 0–0 8.Nf3 Nbd7 9.Be2 b6 10.0–0 a6 11.Bf6 Bf6 12.d4 e5 13.ba6 Ba6 14.Ba6 Ra6 15.Nc3 ed4 16.Nd4 Nc5 17.Rb1 Qd7 18.Qf3 Rd8 19.Rfc1 Na4=+ 20.Na4 Qa4 21.Nc6+/– Rc8? 22.Ne7!!+– Be7 23.Rc8 Bf8 24.Qd5 Qb4 25.Rbc1 h6 26.h3 Ra5 27.Qc4 Qd6 28.Rc6 Qd8 29.Rc7 Qf6 30.Qc6 Qb2 31.Rc8 Ra2?? 32.Qf3 b5?? 33.Rf8! Kf8 34.Rc8 Ke7 35.Rc7 Kd8+– 36.Qf7 Qa1 37.Kh2 Qe5 38.f4 Qc7 39.Qa2 Qb6? 40.Qg8+– Kc7 41.Qg7 Kb8 42.Qf8 Kb7 43.Qe7 Ka6? 44.Qa3 Kb7 45.Qe7 Kc6?? 46.Qe6 Kb7 47.Qb6 Kb6+= 48.f5?? b4?? 49.f6+– Kc6 50.f7 b3 (50...b3 51.f8Q Kb5+–). ludice (1690) – matheusr19 (1755), kurnik, 2011.

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

5.cd5 ed5

6.a4 Bb4 7.e3 0–0 8.Qb3 Ba5 9.Nf3 Nbd7 10.Ba3 c5 11.Nc3 c4 12.Qc2 Re8 13.Be2 Ne5 14.Ne5 Re5 15.0–0 Bf5 16.d3 Rc8 17.Qb2?? cd3–+ 18.Rac1 de2 19.Rfe1 d4 20.Ne2 Be1 21.Re1 Rd5 22.Nd4 Qd7 23.h3 Ne4 24.Nf5 Qf5 25.Qe2 g6 26.Bb2 Nc3 27.Qf3?? Qf3–+ 28.gf3 Rdc5 29.f4 Na4 30.Bd4 Rc1 31.Kf1 Re1 32.Ke1 Rc1 33.Kd2 Rh1 34.Ba7 Rh3 35.Bd4 b6 36.Ke2 h5 37.f3 Kh7 38.Kf2 Kh6 39.Kg2–/+ Rf3 40.Kf3 f6?? 41.Kg3 1–0. elsh1403 – luciano36, kurnik, 2011.

6.a4 Bf5 7.e3 Bd6 8.Nf3 0–0 9.Bf6 Qf6 10.d4 Re8 11.Bd3 Bg4 12.Be2 Nd7 13.Nbd2 Nb6 14.a5 Nc4 15.Nc4 dc4 16.0–0?? cb5–+ 17.a6 ba6 18.g3 Bc7 19.Ne5 Be2 20.Qe2 Be5 21.de5 Re5 22.Rfd1 Re6 23.Ra2 h6 24.Rad2 c3 25.Rd7 b4 26.Rc7 b3 27.Qc4 b2 28.Qc3 Qc3 29.Rc3 Rb8 30.Rb1 a5 31.Kf1 a4 32.Ke2 Reb6 33.Kd2 Rb3 34.Rc4?? a3 35.Ra4 R8b7 36.Kc2 g6 37.Ra7 Ra7 38.Kb3 a2 39.Kb2 ab1Q 40.Kb1 Kg7 41.Kb2 Rc7 42.f3 Kf6 43.h3 Ke5 44.Kb3 f5 45.Kb2 g5 46.Kb3 f4 47.gf4 gf4 48.e4 Kd4 49.Kb4 Ke3 50.Kb5 Kf3 51.Kb6 Rc1 52.e5 Re1 53.Kc5 Re5 54.Kd4 Rh5 55.Kd3 Rh3 56.Kd4 Rg3 57.Ke5 h5 58.Kf5 h4 59.Ke6 h3 60.Ke5 h2 61.Kd4 h1Q 62.Kd3 Qe1 63.Kd4 Rg8 64.Kd5 Rd8 65.Kc6 Qc3 66.Kb7 Rd1 67.Kb6 Rb1 (67...Rb1 68.Ka6 Qa1) 0–1. ludice (1745) – zenel, kurnik, 2011.

5.e3

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

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

5.e3 Bd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd7 5.c4 c6).

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

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

4.c4 Be7

5.a4 a6 6.Nc3 ab5 7.ab5 Ra1 8.Qa1 d6 (8...d5 9.e3=) 9.Nf3 0–0 10.e3 d5 11.Be2 dc4 12.Bc4 cb5 13.Nb5 Nc6 14.0–0 Qa5 15.d4 (15.Qa5 Na5 16.Be2 Bd7+=) 15...Qa1 16.Ra1 Bd7 17.Nd2 Nb4 18.Rb1 Rb8 (18...Ra8 19.e4=) 19.e4 (19.Ba3 Nfd5 20.Bd5 Nd5 21.Be7 Ne7 22.f3+=) 19...Na6 (19...Ra8!?=) 20.f3 (20.Bc3 Ra8+/–) 20...Ne8 21.d5 (21.Bc3 Nac7+=) 21...Nd6 (21...ed5 22.ed5 Rc8 23.Be5=) 22.Nd6 Bd6 23.Bd4 (23.de6 fe6 24.e5 Be7+=) 23...b5= 24.Bb3 Bc5 25.Bc5 Nc5 26.d6 Rb6 27.Bc4 (better is 27.e5!?=) 27...Rd6–/+ 28.Bb5?? (better is 28.Nb3 Ne4 29.Bb5–/+) 28...Rd2–+ 29.Rc1 (29.Bd7 Nd7 30.h4 Kf8–+) 29...Nb7 (29...Bb5 30.Rc5 Bd7 31.h4–+) 30.Rc7 (30.Bd7 Rd7 31.Rc8 Nd8–+) 30...Bb5 31.Rb7 Be8 32.h4 g6 33.Kh2 (33.Rb8 Kf8–+) 33...Kg7 34.Kh3 Rd1 (34...Bd7 35.Rc7–+) 35.g4 (35.Kg3 Kf6–+) 35...Rd3 36.Kg3 Bc6 37.Rb4 Rd1 (37...f5 38.Kf4 Kf6 39.g5 Ke7 40.Rb8–+) 38.g5 (38.Rc4 Bb5 39.Rc5 Rb1–+) 38...h5 39.Rc4 Bb5 40.Rc2 Rd3 41.Rc7 (41.Ra2–+) 41...Ba4 42.Kf2 (42.Kf4 Bd1 43.Ke5 Rf3–+) 42...Bd1 43.Rc1 (43.f4 Bg4–+) 43...Bf3 44.Re1 (44.Rc4 Bg4–+) 44...Bg4 45.Re3 (45.Kg2 Rh3–+) 45...Rd2 (better is 45...Re3 46.Ke3 e5 47.Kf2–+) 46.Kg3 Rd1 47.e5 (47.Kg2 Rb1–+) 47...Bf5 48.Kg2 Rd3 (48...Rd3 49.Rd3 Bd3–+) 0–1. Nikolic,Jovane (1710) – De Almeida,Jefferson Silva, Mogi das Cruzes Brazil, Open, 2013.

5.a4 d5 6.e3 a6 7.Nc3 ab5 8.ab5 Ra1 9.Qa1 0–0 10.Nf3 Bd6 11.d4 dc4 12.Bc4 cb5 13.Bb5 Nc6 14.0–0+= Bd7 15.Bd3 Qa8 16.Nb5 Be7 17.Nd2 Nb4= ½–½. katchum (1690) – rhand (1775), net–chess.com, 2001.

5.Nc3 d5 6.e3 cb5 7.cb5 Nbd7 8.d4 0–0 9.Nf3 a6 10.Bd3 Nb6 11.0–0 Bd7 12.a4 Bb4 13.Ne5 h6 14.Qb3+= Bd6 15.Nd7 Nbd7+= 16.Rfc1 a5 17.Ne2 Nb6 18.g3 Qd7= 19.Ba3 Rfc8 20.Rc8 Rc8= 21.Bd6 Qd6 22.Rc1 Rc1 23.Nc1 Qb4 24.Qb4+= ab4 25.a5 Nc4 26.Bc4 dc4= 27.a6 ba6 28.ba6 Ne8 29.Na2 b3 30.Nc3 Nc7 31.a7 Kf8 32.Kf1 Ke7 33.Ke2 Kd7 34.Kd2 Kc6 35.Na4 Kb5 36.Nc3 Kb6 37.Na4 Ka7 38.Kc3+= Nd5 39.Kb2?? Ka6–+ 40.e4 Nf6 41.f3 Ka5 42.Nc5 Kb4 43.Na6 Kb5 44.Nc5 e5! 45.de5 ½–½. mic (2125) – arunchess (2490), net–chess.com, 2008.

5.e3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 cb5 9.cb5 d5 10.Nf3 Nbd7 11.d4 Bb4 12.Bc3 Bc3 13.Nc3 Qa5 14.Qa4 Qc3 15.Ke2 Nb6 16.Qd1 Nc4 17.Nd2 Nd2 18.Qd2 Qc7 19.f3 0–0 20.Kf2 Bd7 21.Bd3 Qb6 22.g4 Bb5 23.Rb1 Qd6 24.Rb5 Qh2 25.Ke1 Qh1 26.Kf2 Qh2 27.Ke1 ½–½. Woelfelschneider,Peter – Jackiw, Bessenbach, 1982.

5.e3 cb5 6.cb5 Qb6 7.Qb3 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 d6 11.Nf3 e5 12.Be2 Be6 13.Bc4 d5 14.Be2 Nbd7 15.d4 0–0 16.de5+= Ne4 17.0–0 Ndc5 18.Qc2 Rc8 19.Rc1 Bf5 20.Qa2 Be6 21.Bd4 g5? 22.Nfd2 Nd2 23.Nd2 Qc7 24.Nb3 b6 25.h3 Qb7 26.Bf3 Nb3 27.Rc8 Qc8 28.Qb3 Qc1 29.Kh2 Qc4 30.Qc4 dc4 31.Bb6 c3 32.Be4 Bd5 33.Bc2 Bc4 34.Bd4 Bb4 35.b6 Bd5 36.Kg3 h5 37.e4 Bb7 38.Kf3 Kf8 39.Ke3 Ke7 40.Kd3?? Ba6= 41.Ke3 Kd7?? 42.g3 Kc6 43.f4 Bc5?! 44.fg5 Bb6 45.Bb6 Kb6 46.e6! fe6 47.g6 e5 48.Bd3 c2 49.Bc2 Bc4 50.Bd1 Kc6 0–1. carocan (1750) – superos69, kurnik, 2011.

5.e3 c5 6.Nf3= d6 7.Be2 Nbd7 8.0–0 0–0 9.d4 Ne8 10.Nc3+= f5 11.Qc2 e5 12.Nd5 e4 13.Nd2 Bg5 14.Nb3 b6 15.f4 Bh6 16.Rad1 Nc7 17.dc5 dc5 18.Qd2 Rf7 19.g4 g6? 20.gf5+– Rf5 21.Nc7 Qc7 22.Bg4 Rf7 23.Be6 Rb8 24.Bf7 Kf7 25.Qd5 Kf8 26.Qe6 Qd8 27.Be5 Rb7 1–0. Zahn,Richard – Beckmann,Arne, NR–ch Germany, 1997.

5.e3 d6 6.Nf3 0–0 7.a4 a6 8.Be2 Bd7 9.0–0= Qc7 10.d4 Rc8 11.Nbd2 cb5 12.ab5+= d5 13.c5 Ne4 14.Qc2 Nd2 15.Qd2 f6 16.Rfc1 g5 17.g3 Kf7 18.Bd3 Rh8 19.Qe2 h5 20.ba6 ba6 21.Ba6 Na6 22.Ra6 Ra6 23.Qa6 Bc8 24.Qa8 Qb7 25.Qb7 Bb7 26.Ba3 Bc6 27.Rb1 Ra8 28.Bc1 Bd8 29.Bd2 Bc7 30.h3 Kg7 31.Kg2+/– Kg6 32.Be1 Bd8 33.Ng1 Bc7+= 34.Ne2 Ra2 35.Nc3+/– Ra8 36.Nd1 Rb8 37.Rb8+/– Bb8 38.Ba5 Kf7 39.Bb6 Ke7 40.Kg1 Ke8 41.Nc3 Kd7 42.Na2 Bc7 43.Bc7+/– Kc7 44.Nb4 Kb7? 45.Kf1 Bb5+/– 46.Ke1 Kc7 47.f4 gf4 48.ef4 f5 49.Kf2 Be8 50.h4 Bf7 51.Ke3 Be8 52.Kd3 Bb5 53.Kc3 Kb7 54.Nd3 Be8 55.Kb4 Ka6 56.Ne1 Kb7 57.Ka5 Ka7 58.Nf3 Kb7 59.Ng5 Bd7 60.Nf7 Kc7 61.Ng5?? Kb7 62.Nh7 Be8 63.Nf6 Bf7 64.Kb5 Kc8 65.Kc6 e5?? 66.fe5 Kd8 67.Kd6 Kc8 68.e6 Be6 69.Ke6 Kd8 70.Kf5 1–0. Rongen – Maalcke, Dieren, 1995.

5.Nf3 d6 6.e3 e5 7.Be2 Bg4 8.h3 Bh5 9.Nc3 Nbd7 10.0–0 0–0 11.d4 Qc7 12.Rc1 Rfe8 13.Re1 Rac8 14.Qb3 Qb8 15.de5 de5 16.Nh4 Be2 17.Re2 Nc5 18.Qc2 g6 19.Nf3 cb5 20.Nb5 a6 21.Be5 Qa8 22.Nc7 Rc7 23.Bc7 Nfd7 24.Rd2 Qc8 25.Bf4 Bf6 26.Rcd1 Nf8 27.Rd5 Ne4 28.Nd4 Bg7 29.f3 Nf6 30.Rd6 Nh5 31.c5 Nf4 32.ef4 Qc7 33.Ne2 Qe7 34.Ng3 Qe3 35.Kh1 Qf4 36.Ne2 Qh4 37.f4 Qf2 38.R6d2 Bh6 39.g3 Bg7 40.Qd3 Qc5 41.Nd4 Rd8 42.Nb3 Qc6 0–1. Gross – Feiertag, tt Bundesbahn, 1987.

5.a4 0–0

6.e3 a6 7.Nf3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6).

6.e3 d5 7.d4 a6 8.Qb3 Qd6 9.c5 Qd8 10.b6 Re8 11.Nf3 Nbd7 12.Bd3 h6 13.Nbd2 Nh7 14.Qc2 Ng5 15.Ng5 Bg5 16.f4 Be7 17.0–0 Nf6 18.Rf3 Bf8 19.Raf1 Qe7 20.e4 de4 21.Ne4 Nd5 22.Bc4 Qd7 23.Rg3 Be7 24.Qe2 Qd8 25.Qh5 f5? 26.Qh6+– Bf6 27.Nf6 Qf6 28.Rg6 Ne3 29.Qh5 Qd8 30.Rf3?? Ng4?? 31.Rh3 Nh6 32.Qh6 1–0. Larios,Francisco Javier – Gonzalo Borao,David, Aragon–ch Preferente, 2002.

5.e3 0–0

6.d4 cb5 7.cb5 d5 8.Nf3 Qa5 9.Bc3 Bb4 10.Bb4 Qb4 11.Qd2 Qd2 12.Nbd2 Bd7 13.Rc1 a6 14.a4 Rc8 15.Rc8 Bc8 16.Ne5 Nbd7 17.Ndf3 Ne4 18.Bd3 Ndf6 19.0–0 ab5 20.Bb5 b6 21.Bc6 Rb8 22.Rc1 h6 23.Bb5 Nd6 24.Nc6 Ra8 25.Ne7 Kf8 26.Nc8 Rc8 27.Rc8 Nc8 28.Ne5 Nd6 29.Bd3 Ke7 30.f3 Nd7 31.Nc6 Kf6 32.h4 g5 33.hg5 hg5 34.g3 Kg7 35.Kf2 f5 36.f4 Kf6 37.Ne5 Nb8 38.fg5 Kg5 39.Kf3 Ne4 40.Bb5 Nf6 41.Nf7 Kg6 42.Nd8 Nh7 43.Ne6 Kf6 44.Nf4 Ng5 45.Kg2 Ne4 46.Nd5 Ke6 47.Nb6 Nc3 48.Be8 Kd6 49.a5 Nc6 50.a6 Nb5 51.Na4 Nc7 52.Bc6 Kc6 53.Nc5 Kb6 54.Kf3 Nd5 55.e4 fe4 56.Ke4 Nc7 57.g4 1–0. katchum (2535) – grem (2425), net–chess.com, 2014.

6.Nf3 b6 7.Be2 cb5 (7...d5 8.Qa4=) 8.cb5 d5 9.0–0 Bb7 (9...a6 10.Qa4=) 10.a4 Nbd7 11.Nc3 Rc8 12.d4 Bb4 (12...Ne4 13.Rc1=) 13.Qb3+= Ba5 (13...Qe7 14.Ba3 Ba3 15.Qa3 Qa3 16.Ra3=) 14.Rfc1 Ne8? (better is 14...Ne4+=) 15.Ba3+– Ndf6 (15...Nef6 16.Bf8 Qf8 17.Na2+–) 16.Bf8 Kf8 17.Bd3 (17.Rc2 Nd6+–) 17...Nd6 18.Ne5 (18.Ne2 Kg8+–) 18...Kg8 19.Na2 (19.Rc2 Nfe4 20.Be4 de4+–) 19...Nfe4 20.Be4 (20.Rc8 Bc8 21.Qc2 Bb7+–) 20...de4 (20...Rc1 21.Rc1 Ne4 22.Qc2+–) 21.Rc8 Nc8 (21...Qc8 22.Rc1 Qd8 23.Nb4+–) 22.Nb4 Qc7 (22...Bb4 23.Qb4 Nd6 24.a5+–) 23.Qc2 (23.Nbc6 Nd6+–) 23...Qd6? (better is 23...Qc2 24.Nc2 Bd5+–) 24.Nbc6 f6 (24...Bb4 25.Nb4 Qb4 26.Qc7+–) 25.Na5 (25.Nc4 Qd7 26.N4a5 ba5+–) 25...ba5 26.Nc6 Bc6 (26...Nb6 27.Na7 Nd5 28.Qe4+–) 27.Qc6 Qd8 (27...Qc6 28.bc6 Kf7 29.Rb1+–) 28.Qe6 Kf8 (28...Kh8 29.Qe4 Nd6 30.Qd5+–) 29.Qe4 Qc7 (29...Kg8 30.Rc1 Nd6 31.Qd5 Kf8 32.Rc6+–) 30.Qc6 (30…Qb8 31.Rc1+–; 30.Qh7 Nb6+–) 1–0. Herm,Florian – Donkoff,Georg, Baden–ch AT1, 2003.

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

6.Nf3 Ne4 7.Qc2 Bf6 (7...d5!?=) 8.d4+= (8.Qe4?? Bb2 9.Nc3 Ba1–+) 8...Ng5 9.Nbd2 b6 (9...Nf3 10.Nf3 d5 11.cd5 ed5 12.Bd3+=) 10.Bd3 (10.Ne5 Be5 11.de5 h6+–) 10...h6 (10...Nf3 11.Nf3 h6 12.0–0+=) 11.a4 (11.Ng1 e5 12.de5 Be7+–) 11...Bb7 12.Ng5 Bg5 13.0–0 c5 (13...a6 14.c5+/–) 14.f4 (14.a5 d6+/–) 14...Bf6 15.a5 ba5 (15...d5 16.a6 Bc8 17.Ne4+–) 16.Nb3 (16.dc5 Bb2 17.Qb2 a6+–) 16...cd4+/– 17.Na5 (17.Nd4?! a6=) 17...Qc7 18.ed4 d6 (18...a6!?+/–) 19.Nb7 Qb7 20.Be4 (20.f5!? Nd7 21.fe6 fe6 22.Qe2+/–) 20...d5+= 21.Bf3 Rc8 22.Qe2 Rc4?? (better is 22...a6+=) 23.Qc4!!+– Nd7 24.Qc6 Qc6 25.bc6 Nb6 26.Be2 a5 27.Rfc1 1–0. Dumontelle,Joe – Boudreau,M, Aug, 1979.

5.Nf3 Qb6

6.Nc3 d5 =.

6.e3 0–0 7.Nc3 d5 8.Na4 Qc7 9.c5 cb5 10.Bb5 Ne4 11.d4?? Qa5–+ 12.Nd2 Nd2 13.Qd2 Qb5 14.Nc3 Qa6 15.a4 b6 16.Nb5 Qb7 17.Ba3 bc5 18.dc5 Qc6 19.Rc1 Ba6 20.Qa5 Bd8 21.Qb4 Nd7 22.Nd4 Qc7 23.c6 Rb8 24.cd7?? Rb4 25.Rc7 Rb1?? 26.Kd2?? Rh1= 27.Bf8?? Bc7–+ (28.Bd6 Ba5 29.Kc2 Rf1–+; 27...Kf8 28.Ra7 Rh2 29.Ra6=) 0–1. Dopper,Johan – Baris,Hans, 1993.

6.e3 d5 7.a4 dc4 8.Bc4 0–0 9.0–0 cb5 10.ab5 Nbd7 11.d4 Rd8 12.Qe2 Qc7 13.Rc1 Qb8 14.e4 Nb6 15.Bd3 Ng4 16.e5 g6 17.Bc3 Nd5 18.Bd2 Kg7 19.Nc3 b6 20.Nd5 ed5 21.h3 Nh6 22.g4 Qb7 23.Rc2 Be6 24.Nh2 Qd7 25.f4 Rac8 26.Rca2 Rc7 27.Qe3 Ng8 28.Rf1 f5 29.ef6 Nf6 30.f5 gf5 31.Qh6 Kh8 32.Bf4 Rc3 33.Be5 Rg8 34.Bf6 Bf6 35.Qf6 Rg7 36.Bf5 Bf5 37.Rf5 Rh3 38.Rg5 Qe7 39.Qg7 Qg7 40.Rg7 Kg7 41.Ra7 1–0. Alamaki,Kauko – Matilainen,Mikko, corr Finland, 1984–85.

4.e3 a6

5.a4 a5 6.c4 c5 7.Nf3+= d6 8.d4 b6 9.Na3 Bb7 10.Be2 h6 11.0–0 Be7 12.Qb3 Nbd7= 13.Nc2 0–0 14.Rad1 Ne4 15.Nd2 Nd2 16.Rd2 Nf6 17.dc5 bc5 18.Qc3 e5 19.Qb3 Qb6 20.Ne1 Ne4 21.Rd1 Ng5 22.f4 Ne4 23.fe5+/– de5 24.Be5 Rad8 25.Nd3 Bh4 26.Bb2 Bg5 27.Nf4 Nd2 28.Rd2 Rd2 29.Qc3 Rd4?? 30.ed4+– cd4 31.Qd4 Qd4 32.Bd4 Re8 33.Bf3 Bf4 34.Bb7 Be3 35.Be3 Re3 36.Bd5 Ra3 37.Rf7 Ra4 38.Ra7 Kf8 39.b6 Rb4 40.b7 a4 41.Ra8 Ke7 42.b8Q Rb8 43.Rb8 a3 44.Ra8 a2 45.Ra2 Kf8 46.Re2 (46.Re2 h5 47.c5 g6 48.c6 Kg7 49.c7 Kh6 50.h4 Kg7 51.c8Q Kh7 52.Re7 Kh6 53.Qf8) 1–0. Nielsen,Joergen Axel – Moeller Hansen, Nakskov, 1970.

5.a4 ab5 6.ab5 Ra1 7.Ba1 Qa5 8.Nc3 Bb4 9.Nf3 0–0 10.Be2 d5 11.0–0 Nbd7 12.bc6 bc6 13.Nd4 c5 14.Nc6 Qb6 15.Nb4 Qb4 16.Qe1 d4 17.ed4 cd4 18.Nb5 e5 19.c3 dc3 20.Bc3 Qc5 21.Qa1 Bb7 22.Qb1 Nd5 23.h3? Nf4–+ 24.Bg4 Nf6 25.Re1 Ng4 26.hg4 Bg2 27.Re5 Qc6 28.Nd4 Qh6 29.Rh5 Nh5 30.gh5 Qg5 31.Kh2?? Ba8 32.Qg1 Qh4 0–1. deross – murzyn1500, kurnik, 2011.

5.ba6 b6 6.Nf3 =.

5.c4 ab5 6.cb5 d5 7.a3 Bd6 8.Be2 0–0 9.Nf3 Bd7 10.bc6 Bc6 11.0–0 Ba4 12.Qc1 Ra5 13.d4 Nbd7 14.Nc3 Bc6 15.Qc2 e5 16.de5 Ne5 17.Ne5 Be5 18.f4 Bd6 19.Qc1 Re8 20.Nd1 Ba4 21.Bd4 Qd7 22.Bf6 gf6 23.Nc3 Bb3 24.Rf3 Kh8 25.Nb1 Rg8 26.Qc3 Qa4 27.Qf6 Rg7 28.Rg3 Bf8 29.Rg7 Bg7 30.Qd8 1–0. Machete99 – Killerkabayo, ICC, 2002.

5.c4 Ne4?! 6.Nc3 Nd6?? 7.bc6 dc6 8.c5 Nf5 9.g4 Nh4 10.d4 Be7 11.Nf3 b6 12.Nh4 Bh4 13.cb6 Qb6 14.Rb1 Qa5 15.Bc4 Qg5 16.Qf3 0–0 17.Ba3 Re8 18.Ne4 Qg6 19.Bd6 Nd7 20.0–0 f5?? 21.Qf5 Kh8 22.Qg6 1–0. vik – gaml, internet, 2001.

5.bc6 Nc6=+ 6.Nf3 Be7 7.Be2 0–0 8.0–0 d5 9.c4 dc4 10.Bc4 b5 11.Be2 Bb7 12.d4 Rc8 13.Nbd2 Qb6 14.Bd3 Rfd8 15.Qe2 Nb4–/+ 16.Rfc1 Rc1 17.Bc1 Nfd5 18.Ne5 Nd3–+ 19.Nd3 Nc3 20.Qf1 a5 21.Nb3 b4 22.Nbc5 Bd5–+ 23.a3 Bc4 24.ab4–/+ ab4 25.Qe1 Qb5 26.Ra7=+ Bd3 27.Re7 Ra8 28.Bb2 Na4 29.Na4 Ra4=+ 30.h4 h6 31.Qc1 Qc4 32.Qc4 Bc4 33.Rc7 Ra2 34.Bc1? Rc2 35.Bb2 b3 36.Rc8 Kh7–/+ 37.Kh2 Rb2–+ 38.Rc4 Rf2 39.Kg3 Rc2 40.Rb4 b2 41.e4 Kg6 42.d5 ed5 43.ed5 Kf6 44.d6 Ke6 45.Rb6 Rd2 46.Kf3 g6 47.Kg3 f5 48.Kf3 g5 49.hg5 hg5 50.Kg3? g4 51.Kf4 Rg2 52.Kg5 Rf2 53.Kh4 Kd7 54.Kg3 Rd2 55.Kf4 Ke6 56.Kg3 Ke5 57.Kh4 Rd6 58.Rb2 Rd3 59.Rb5 Ke4 60.Kg5 g3 61.Kh4 g2 62.Rb1 f4 63.Rg1 f3 (63...f3 64.Kg3 Re3–+) 0–1. Herdin,Hans Ulrich (2070) – Schindler,Viktor (2140), Regionalliga NW, 2004.

4.e3 cb5

5.Nf3 Nc6 6.Bb5 Be7 7.Bc6 bc6 8.0–0 Ba6 9.d3 0–0 10.Nc3 Qb6 11.Rb1 Qc7 12.Qd2 Rab8 13.Ne4?? Ne4–+ 14.de4 Qd6?? 15.Qc3 Qb4?? 16.Qg7# 1–0. clock – coz12, Caissa.com, 2004.

5.Bb5 a6

6.Ba4 b5 7.Bb3 Bb7 8.Nf3 g6 9.0–0= Bg7 10.d4 Ne4 11.c4 Nc5 12.Nbd2 0–0 13.Ba3 Nb3 14.Nb3 Re8 15.cb5 ab5 16.Bd6 Nc6 17.Nc5+= Ra7 18.a4 Ba6? 19.Qb3?? ba4–/+ 20.Ra4 Bf1 21.Kf1 Na5 22.Qb2 Nc6 23.Na6 Qc8 24.Qb5–/+ Rb7 25.Qc5 Ra7 26.Qc4?? Qb7 27.Nd2 Rea8 28.Nc5 Qb2 29.Ke1?? Ra4 (29...Ra4 30.Na4 Qa1 31.Ke2 Ra4–+) 0–1. gtate (1930) – mrducks (2040), net–chess.com, 2006.

6.Bd3 b5 7.f4 Bb7 8.Nf3 Be7 9.0–0 h6 10.Nc3 Qc7 11.a4 b4= 12.Na2 0–0 13.Ne5 d6 14.Ng4 Ng4 15.Qg4+/– e5 16.Qf5?? g6?? 17.Qh3+/– h5 18.fe5+– de5? 19.Bg6 fg6 20.Qe6 Kh7 21.Be5 Qd7 22.Rf7 Rf7 23.Qf7 Kh6 24.Bg7 Kh7 25.Bf6 (25.Bf6 Kh6 26.Qg7#) 1–0. Jaeger,Erich (2015) – Vanvoren,Piet (2065), remoteschach.de, 2007.

6.Be2 Bb4 7.a3 Ba5 8.Nf3 Nc6 9.0–0 b5 10.a4 Rb8 11.ab5 ab5 12.Nc3 Bc3 13.Bc3 b4 14.Bb2 Bb7 15.Bd3 d6 16.Ra4 e5 17.Bb5 Nd5 18.e4 Nc7 19.Bc4 0–0 20.Re1 Na8 21.Ra2 Qb6 22.Qe2 Nd4 23.Nd4 ed4 24.Qd3 Rfe8 25.Bd4 Qc6 26.Qg3 g6 27.d3 Nc7 28.Re3 d5 29.ed5 Nd5 30.Bd5 Qd5 31.Ra4 Qd4 32.Qc7 Qg4 33.Re8 Re8 34.f3 Bf3 35.Qg3 Qd4 36.Kh1 Bd1 0–1. mtrold1 – EYPREZ, internet live, 2001.

6.Be2 b5 7.Nf3 Bb7 8.0–0 Bc5 9.a4 b4 10.d4 Bb6 11.c3 Nc6 12.Qb3 a5 13.Rc1 d5 14.cb4 Nb4 15.Ba3 Qe7 16.Nc3 0–0 17.Na2 Rfc8 18.Ne5 Ne4 19.Rc8 Rc8 20.Nb4 ab4 21.Bb4 Qc7 22.a5 Ba7 23.f3 Nc3 24.Bc3 Qc3 25.Qb7 Qa1 26.Kf2 Rf8 27.Qa7 f6 28.Nd7 Re8 29.Nc5 e5 30.Qd7 Rb8 31.Ne6 1–0. aspasio – SABER, ICC, 1999.

6.Be2 b5 7.Nf3 Bb7 8.0–0 Be7 9.a4 Nc6 (9...b4!?= 10.c3 A) 10...0–0 11.cb4 (11.d3 Nc6 12.cb4 Bb4 13.Na3 Rb8 14.Nc2 Be7=) 11...Bb4 A1) 12.Bc3 Nc6 13.d4 Rc8 (13...Rb8 14.Bb4= Nb4=) 14.Ra2 Ne4=; A2) 12.Nc3 Nc6 13.Rb1 Rb8 14.Qc2 Qe7=; B) 10...Nc6 B1) 11.d3 B11) 11...0–0 12.cb4 Bb4 13.Na3 Rb8 14.Rb1 (14.Rc1= Qe7=) 14...Qe7=; B12) 11...Rb8 12.cb4 Bb4 13.Na3 0–0 14.Rb1 d5=; B2) 11.cb4 Bb4 12.Na3 0–0 13.Nc2 (13.Rc1 Rb8 14.Nc2= Be7=) 13...Be7 14.Rb1 Rb8=) 10.ab5+/– ab5 11.Bb5 (11.Ra8 Qa8 12.Bb5 0–0 13.d3 Qa2 14.Bf6+/–) 11...0–0 (11...Ra1 12.Ba1 0–0 13.Bf6 Bf6 14.d4+=) 12.c4 (12.Ra8 Qa8 13.c4 d5 14.cd5+/–) 12...Qc7 (12...Ra1 13.Ba1 d5 14.Bf6+=) 13.d3 Ra1 14.Ba1 Ra8 15.Nc3 Nb4 16.d4 Bf3 (16...Ra5!?+=) 17.Qf3+/– Rc8 18.Rc1 1–0. Bonetti,Shane – guest1467, ICC, 2002.

6.Be2 b5 7.Nf3 Nc6 8.0–0 Bb7 9.c4 Na7 10.cb5 Nb5 11.Nc3 Nc3 12.Bc3 Ne4 13.Bd4 Bc5 (13...Qa5!?+= A) 14.Qc2 A1) 14...Ng5 15.Bc3 (15.Ng5 Qg5 16.f3 Bc6 17.Rab1 Bd6 18.Rb6+=) 15...Qc5 16.Ng5 Qg5 17.f3 Bd6 18.Rab1+=; A2) 14...f6 15.Rab1 (15.Qb2 Bc6 16.Rab1 Ba3 17.Qb3 Bd5 18.Qc2=; 15.d3 Rc8 16.Qb2 Nd6 17.Rac1 Rc1 18.Rc1=) 15...Rc8 16.Qb2 Nd6 17.Rfc1 Rc1 18.Rc1+=; B) 14.Qb3 Bc6 (14...Bd5 15.Qc2 Nd6 16.Rfc1 f6 17.a4 Be7 18.Qb2+=) 15.Qc2 (15.d3 Nd2 16.Nd2 Qd2 17.Bg4 h5 18.Bh3=) 15...f6 16.d3 Nd6 17.Bc3 Qa4 18.Qa4+=; C) 14.Rb1 Bd5 15.Rb2 (15.d3 Nc3 16.Qd2 Bb4 17.Rb4 Ne2 18.Kh1=) 15...Rc8 16.Qa1 d6 17.Rc1 Nc5 18.d3+=) 14.Bg7+/– Rg8 15.Bb2 d5 (15...Bb4 16.d3 (16.d4 Nd2 17.a3 Ba5 18.Rc1+=) 16...Nd2 17.a3+= Ba5 18.Rc1+=; 15...Qa5 16.d4 Be7 17.Kh1 Qf5 18.a3=) 16.Qa4 (16.d3 Ng5 17.Rb1 Rb8 18.Qa4+/–) 16...Qd7 17.Qd7 (17.Qa5 Bd6 18.d3+/–) 17...Kd7 18.d3 Ng5 (better is 18...Nd6!?+/–) 19.Ne5+– Kd6 20.h4 f6 21.d4 (21.hg5?! fe5 22.d4 ed4 23.ed4 Bb4+/–) 21...fe5 (21...Ba7 22.Ba3 (22.hg5?! fe5 23.de5 Kd7+/–) 22...Kc7 23.Rfc1 (23.hg5?! fe5 24.Rfc1 Kd8+–) 23...Kd8 24.Rab1+– (24.hg5?! fe5 25.Rab1 Bc8+–)) 22.dc5 (22.hg5?! ed4 23.ed4 Bb4+/–) 22...Kc5 (22...Kc6 23.hg5 Rg5 24.f4 ef4 25.ef4+–) 23.Rab1 (better is 23.Be5 Kb6 24.hg5 Rg5 25.Rab1 Ka7 26.Bd4 Kb8 27.Rb3+–) 23...Ne4 (23...Nh3 24.Kh2 Kd6 25.Ba3 Kc7 26.Rfc1 Bc6 27.Kh3 e4+–) 24.Ba3 Kc6 25.Rfc1 Kd7 26.Rb7 Ke8 27.Bh5 (27.Bh5 Rg6 28.Rh7 Kd8 29.Be7 Kd7 30.Bb4 Kd8 31.Ba5 Ke8 32.Rcc7 Kf8 33.Rh8 Rg8 34.Bb4 Nc5 35.Bc5#) 1–0. Bonetti,Shane – bgoat, ICC, 2002.

6.Be2 Qb6 7.Qc1 (7.Bf6 gf6 A) 8.Nc3 d5 (8...Qc7 9.Nf3 d5 10.e4 Bb4 11.ed5 Bc3=) 9.Nf3 Bb4 10.Rb1 Qa5 11.Rb3 Nc6=; B) 8.c4 Rg8 9.Bf3 Nc6 10.Qb3 Qc7 11.d3 Bb4=; C) 8.Nf3 d5 9.0–0 Nc6 10.c4 d4 11.ed4 Nd4=) 7...Ne4 (7...d5 A) 8.c4 Qc7 (8...Qc6 9.Nf3 dc4 10.Bc4 Bd6 11.0–0 b5=; 8...dc4 9.Nf3 Qc6 10.a4 b5 11.ab5 ab5=) 9.Nf3 dc4 10.Qc4 Qc4 11.Bc4 b5=; B) 8.Nf3 Be7 (8...Bd6 9.c4 Nbd7 10.0–0 0–0 11.d4 Bc7=; 8...Nc6 9.0–0 Be7 10.c4 dc4 11.Na3 Qd8=) 9.0–0 Nc6 10.c4 dc4 11.Bc4 0–0=; 7...Qc7 A) 8.Nf3 b6 (8...d5 9.Be5 Bd6 10.Bd6 Qd6 11.d4 Nc6=) 9.Qd1 Be7 10.Nc3 d5 11.a3 0–0+=; B) 8.Bf6 gf6 9.Nf3 d5 10.0–0 Rg8 11.c4 dc4=; 7...Nc6 8.Bf6 gf6 9.Nf3 Rg8 10.0–0 d5 11.c4 d4=) 8.Nf3 (8.Nc3 d5 9.Ne4 de4 10.f3 Qd8 11.Nh3 e5=; 8.c4 Nc6 9.Nf3 d5 10.0–0 dc4 11.Bc4 Bd7=; 8.Bd4 Nc5 9.Nf3 Nc6 10.Bc3 Na4 11.a3 d5+=; 8.d3 Qa5 9.c3 Nc5 10.Nf3 b5 11.Nbd2 d5=) 8...d5 (8...Nc6 9.Nc3 Nc3 10.Bc3 d5 11.0–0 f6=) 9.0–0 Nc6 10.d3 (10.c4 dc4 11.Bc4 Bd7=) 10...Nd6 (10...Nc5 11.d4 Na4=) 11.c4 (11.Nbd2 Qc7+=) 11...Nf5 (11...dc4+=) 12.Nc3 d4 13.Nd1 de3 14.fe3 Bd7 15.Rb1 Qa7 16.d4 Be7 17.Ba3 Rc8 18.Be7 Nce7 19.Qa3 Bc6 20.Ne5 Be4 21.Qa4 Nc6 22.Nc6 Rc6 (22...Bc6 23.Qb3+/–) 23.Rb4 0–0 24.c5 Nh4?? (24...Rcc8!?+/–) 25.g3?? (better is 25.Rf4 Bg2 26.Rh4+–) 25...Nf5+/– 26.Bf3 Bf3= 27.Rf3 Ne7 28.e4 f5 29.Nc3 Rc7?? 30.Nb5!+– Qb8 31.Nc7 Qc7 32.Qb3 Qd7 33.ef5 Nf5 34.Qb2 Qd5 35.Qf2 Rf6 36.Rf4 Nh6? 37.Rf6 gf6 38.Qf4 Kg7 39.Rb2 Nf5 40.Rd2 Qc4 41.Qg4 Kf7 42.Qh5 Kg7 43.Qe2 Qc1? 44.Rd1 Qc3 45.Qe6 Ne3 46.Rb1 Qd4 47.Rb7 Kh6 48.Qh3 Kg6 49.Qh7 Kg5 50.Rg7# 1–0. Murrell,M – Gridassov,A, Doeberl Cup, 1998.

6.Be2 Qb6 7.Bd4 Qc7 8.Bf6 gf6 9.Nf3 d5 10.0–0 e5 11.Nc3 Be6 12.Rb1 Bd6 13.e4 d4 14.Nd5 Bd5 15.ed5 Nd7 16.Re1 0–0 17.Bd3+= Kh8 18.Nd4!+/– ed4?? 19.Qh5+– f5 20.Qf5 Nf6 21.Qf6 (21…Kg8 22.Re4 Bh2 23.Kh1+–) 1–0. tromar (1870) – DarkOmen (1775), GameColony.com, 2002.

6.Be2 Nc6 7.Nf3 d6 8.0–0 Be7 9.d4 0–0 10.c4 h6 11.Nc3 Bd7 12.d5 ed5 13.cd5 Na5 14.Qd4 b5 15.Rfc1 Nb7 16.Bd3 Nc5 17.Bc2 b4 18.Qb4 Rb8 19.Qa3 Qb6 20.Rab1 Bb5 21.Ba1 Rfc8 22.Nd4 Rb7 23.Ndb5 ab5 24.Rb5 Qc7 25.Qb4 Rcb8 26.a4 Na6 27.Qd4 Nc5 28.e4 Nfd7 29.Rb7 Rb7 30.Nb5 Qb8 31.Qg7# 1–0. guest2119 – guest1851, ICC 3 8 u, 2002.

6.Be2 d5 7.f4 =.

6.Be2 Be7 7.Nf3 0–0 8.0–0 b5 9.a4 Bb7 10.ab5+/– ab5 11.Ra8 Ba8 12.Bb5 Nc6 13.Qe2 Qb8 14.c4 d5 15.Bf6 Bf6 16.cd5 ed5 17.d4 Ne7 18.Rc1 Rc8 19.Nc3 Bc6 20.Ba6 Rc7 21.Rb1 Qa7 22.Bd3 Rb7 23.Rc1 Qa3 24.Qc2 Rc7? 25.Nb5+– Bb5 26.Qc7 Nc6 27.Rc6 Bc6 28.Qc8 Be8 29.Qe8 Qf8 30.Bh7! 1–0. b4_player (2185) – tomvdpBEL (1810), GameColony.com, 2003.

5.Bb5 Qb6

6.a4 a6 7.Bd4 Bc5 8.Bc5 Qc5 9.Be2 Nc6 10.Nf3 Nb4 11.Na3 d5 12.0–0 Bd7 13.c4 Rc8 14.Qb3 a5 15.d4 Qe7 16.Rfc1 0–0 17.c5 Bc6 18.Nc2+/– Nc2 19.Rc2 Nd7 20.Qc3 Ra8 21.Rb2 e5 22.Ne5 Ne5 23.de5 Qg5 24.Bf1 Rfe8 25.f4 Qe7 26.Bb5 f6 27.Bc6 bc6 28.ef6 gf6 29.Rb6 Qe3 30.Qe3+– Re3 31.Rc6 Kf7 32.Rd6 Re4 33.Rd5 Rf4+/– 34.Rd7 Kg6 35.g3 Rc4+= 36.Rc7 Rc2 37.Rc6 Kg5 38.Rf1 f5 39.Rf4 Rd8 40.h4+– Kh5 41.Rf5 Kg4+= 42.Rf2 Kg3–/+ 43.Rf7?? Rg2 (43...Rg2 44.Kh1 Rd1 45.Rf1 Rf1) 0–1. Kreuzer – Biereth, Bezirkspokal, 1986.

6.a4 a6 7.Bf6 ab5 8.Bd4 Qc6 9.ab5 Qg2 10.Ra8 Qh1 11.Rb8 Qg1 12.Ke2 Qh2 13.Rc8 Ke7 14.Nc3 Qh5 15.f3 Qh2 16.Kd3 f6 17.Qa1 Kf7 18.Qa8 Rg8 19.Qb7 Qd6 20.b6 g6 21.Nb5 Qe7 22.Bc5 d6 23.Rf8! Kf8 24.Bd6 (24.Bd6 Kg7 25.Qe7 Kh6 26.Bf4 g5 27.Qf6 Rg6 28.Qf8 Kh5 29.Be5+–) 1–0. michaelbuss – romanic, ChessWorld.net, 2005.

6.a4 a6 7.Bf6 gf6 8.Bd3 Nc6 9.Nc3 Rg8 10.Nge2 f5 11.Nf4 Bd6 12.g3 Ne5 13.Bf1 Bb4 14.Rb1 Qa5=+ 15.Rb3 Bc3 16.Rc3 Qa4 17.Qh5 Rh8 18.Qh6 d6 19.Bg2 Bd7 20.0–0 Rc8 21.Rc8 Bc8 22.d4 Nd7 23.d5 e5 24.Nh5 Qc2 25.e4 f4 26.gf4 ef4 27.Ng7+/– Kd8 28.Qf4 Qb2 29.Qf7+/– Nc5 30.f4 Bd7 31.e5 Kc8 32.Ne6 Nd3 33.Nf8 Qb6 34.Kh1 Bb5 35.Qe7 Nf2 36.Rf2 Qf2 37.ed6 Kb8 38.d7 Rg8 39.d8Q Ka7 40.Qe4 Bd3!?=+ 41.Qh4 Qh4 42.Qe3 b6 43.Qe8 Bb5 44.Qf7 Ka8 45.d6 Rg2 46.Kg2 Bc6 47.Kf1 Qh2 48.Ke1 Qg1 49.Ke2 Qg2 50.Kd3 Qe4 51.Kd2 Qb4 52.Ke2 Qd6 53.Nh7 a5 54.Qf8 Qf8 55.Nf8 a4 56.Kd3 a3 57.Kc2 b5 58.Ne6 –+. b4_player – opponent, gamecolony.com, 2007.

6.a4 Nc6 7.Qc1 Be7 8.Nf3 0–0 9.0–0 Qc7 10.Be2 b6 11.c4 Bb7 12.Nc3 a6 13.d3 Nb4 14.e4 d6 15.Ba3 Nc6 16.Rb1 h6 17.Qe3+= Nd7 18.Rfc1 Bf6 19.d4 Rfc8 20.Nd5+/– ed5 21.cd5 Qd8 22.dc6 Rc6 23.Bc4 Rac8+= 24.Nd2 Bg5 25.f4 Be7 26.Qd3 Bf8 27.Bb2 a5 28.Bb5 Rc1+= 29.Rc1 Rc1 30.Bc1 d5 31.e5 Nb8 32.Ba3 Nc6 33.Bf8 Qf8 34.Nf3 Qc8 35.Qd1 Nb4 36.h3 (36.Qe1 Qf5=) ½–½. Jacewicz,Grzegorz – Rainer,Jean_Michel, corr or01–010 E–mail, 2002.

6.a4 Be7 =.

6.Nc3?? a6–+ 7.Bd7 Bd7 8.Rb1 Qd8 9.Nf3 Nc6 10.0–0 Be7 11.d4 0–0 (11...0–0 12.e4 Qc7–+) 0–1. makaveli1982 – MarianoL (1710), Friendly Game, 2007.

6.Nc3?? a6–+ 7.Ne4 Ne4 8.Bd3 Nf2! 9.Kf2 Qb2 10.Bc4 Nc6 11.c3 Ne5 12.Rb1 Qa3 13.Bb3 Nd3 14.Ke2 Qd6 15.Nf3 Ne5 16.Ne5 Qe5 17.g3 Be7 18.Kf2 b5 19.Rf1 Bb7 20.d3 Qc3 21.Rc1 Qe5 22.Qg4 0–0 23.Qh3 Bg5 24.Rce1 Rac8 25.Re2 Rc3 26.Bc2 Rc2! 27.d4 Re2 28.Ke2 Qe3 (28...Qe3 29.Kd1 Qd2#) 0–1. icewater – JimA22, Caissa.com, 2004.

6.c4 a6 7.Bf6 ab5 8.Bd4 Qc6 9.cb5 Qg2 10.Qf3 Qf3 11.Nf3 d6 12.Nc3 Rg8 13.0–0 h6 14.Rfc1 Nd7 15.b6 Nf6 16.Bf6 gf6 17.Kh1 Bd7 18.d3 Bc6 19.e4 Be7 20.Nd4 0–0–0 21.Nd5 ed5 22.ed5 f5 23.dc6 Bf6 24.cb7 Kb7 25.Rc7 Ka6 26.Rb1 Ra8 27.Nc6 h5 28.Rf7 Be5 29.d4 Bf4 30.b7 Rab8 31.Rf5 d5 32.Rf6 Rbe8 33.b8N Bb8 34.Nb8 Ka7 35.Ra6# 1–0. Bonetti,Shane – relation (1775), ICC 2 12 u, 2002.

6.Qe2 a6 7.Bf6 gf6 8.Qc4 Nc6 9.Bc6 bc6 10.Ne2 Rb8 11.0–0 d5 12.Qa4 Bd6=+ 13.Nbc3 Qc7 14.Qh4 Ke7 15.Rab1+= Bb7 16.Ng3 h5 17.f4 Rbg8 18.Nh5 Rh6= 19.d4 a5 20.h3 Kf8 21.g4 Ba6 22.Rfd1 Be7 23.Kh2? f5–+ 24.Qf2? fg4 25.Ng3 Rh3 0–1. Sevestre,Frederic – Hoareau,Nicolas, corr EE6.E.25, 1996.

6.Bf6 Qb5 7.Nc3 Qc6–/+ 8.Bh4 Qg2 9.Qf3 Qf3 10.Nf3 d6 11.Nb5 Na6 12.c4 Bd7 13.a4 Be7 14.Be7 Ke7 15.d4 Rhc8 16.Nd2 Bb5 17.ab5 Nb8 18.Ke2 Nd7 19.Rhc1 a5 20.ba6 Ra6 21.Rab1 b6 22.Rc2 d5 23.Rbc1 dc4 24.Rc4 Rc4 25.Rc4 Ra1 26.f3 Ra5 27.Rc1 Rh5 28.Rh1 Nf6 29.f4 g6 30.Nf3 Ra5 31.Rb1 Ra2 32.Kf1 Ng4 33.Kg1 Ne3 34.Rb6 Rg2 35.Kh1 Rf2 0–1. Ruiz Salinas – Barreteaga,R, IIICEAPE, 1991.

5.Bb5 Nc6

6.Nf3 a6 7.Bc6 bc6 8.Nc3 =+.

6.Nf3 a6 7.Be2 Be7 8.0–0 d5 9.d4 0–0 10.Nbd2 b6 11.a4 Bb7 12.Ba3 Ba3 13.Ra3 Na5 14.Qa1 Rc8 15.Rc3 Rc3 16.Qc3 Qd6 17.Rb1 Rc8 18.Qb4 Qb4= 19.Rb4 Nd7 20.Bd3 ½–½. woschkat (2395) – stejam (2350), net–chess.com, 2003.

6.Nf3 d5 7.Ne5 Bd7 8.Nd7 Qd7 9.0–0 a6 10.Bc6 Qc6 11.Bf6 gf6 12.Nc3 Bg7 13.Rb1 e5 14.Qg4+/– Rg8 15.Qf5 h6 16.f4 Ke7?? 17.fe5 fe5 18.Qf7 Kd6 19.Rb7 Raf8 20.Qe7# 1–0. market (2185) – Analogue_Bubble_Bath (1705), GameColony.com, 2002.

6.Nf3 Be7 7.0–0 0–0 8.c4 a6 9.Ba4 Qc7 10.d4 Rb8 11.Nc3 Na5! 12.c5 d6 13.cd6 Qd6?! 14.Qd3 b5 15.Bc2 Nc4 16.Bc1 g6? 17.a4 Qc6 18.Bb3 Bb7 19.Ne2?! Bd6 20.Ra2 Ng4 21.Ng3 h5?! 22.h3 Nf6 23.Rc2 Rbc8 24.Bd2 Ne4 25.ab5 ab5 26.Ne4 Qe4 27.Qe4 Be4 28.Ra2 Bf3 29.gf3 Rc7 30.Rfa1 Rfc8 31.Kg2 Nd2 32.Rd2 Bb4 33.Rda2 Bc3 34.Rb1 b4 35.f4 Kg7 36.Kf3 Kf6 37.Ke4 Rb8 38.Rg1 Rbb7 39.Rg5 Ra7 40.Rb5 Ra2 41.Ba2 Be1 42.Kd3 Rc1 43.Ke2 Bc3 44.Kf3 Rc2 45.Bb3 Rb2 46.Bc4 Be1 47.Be2 Ra2 48.e4? Ra3 49.Kg2 b3 50.Bc4 Ra2 51.Kf1 Bc3?! 52.Rb3 Bd4 53.Be2 ½–½. Schirmer – Ziemek, 1992 (Schirmer).

5.Bb5 Be7

6.a4 a5 7.Nf3 b6 8.0–0 Bb7 9.d4 0–0 10.Nbd2 d6 11.c4 Nbd7 12.Nb3 d5 13.Rc1 dc4 14.Bc4 Nd5 15.Qe2 Nb4 16.Ba3 Nf6 17.Ne5 Nfd5 18.g3 Rc8 19.Rfd1 f6 20.Nd3?? f5?? 21.Nb4 ab4 22.Bb2 Rf6 23.f3 Nc3 24.Bc3+/– bc3 25.Rc3 Rh6 26.Rdc1 Bb4 27.R3c2 Ba3 28.Ra1 Bb4 29.Bb5 Rc2= 30.Qc2 Bf3 31.Qc4 Bf8 32.a5 Bd5 33.Qc3 ba5 34.Na5 f4 35.ef4+/– g5 36.fg5 Qg5 37.Rf1 Qh5 38.Qd2 Bb4 39.Qf2 Bf3? 40.Nb3 Be7 41.Nd2 1–0. carocan (1785) – pionas54 (1670), kurnik, 2011.

6.Nf3 Qb6 7.c4 a6 8.Bd4 Qc7 9.Be5 Qb6 10.Ba4 Nc6 11.Bc3 0–0 12.d3 d5 13.Nbd2 dc4 14.Nc4 Qc7 15.Bc6 Qc6 16.Rc1 b5 17.Nce5 Qd5 18.e4 Qb7 19.Qb3 Bd7 20.Bb4 Bb4 21.Qb4+= a5 22.Qd6 Rfc8 23.0–0 b4 24.Qe7 Rf8 25.Nd2 Ra7 26.Nb3 a4 27.Nc5+= Qb5? 28.g4 h6 29.h4 Qa5 30.Ncd7 Qe5?? 31.Qf8 (31.Qf8 Kh7 32.Ne5+–; 31.Ne5?! Re7 32.Rc4 Rb7+=) 1–0. acidtest (2455) – ajochem (2065), net–chess.com, 2006.

6.f4 0–0 7.Bd3 d5 8.Qf3 Ne4 9.Be4 de4 10.Qe4 Nc6 11.a3 Qd7 12.Ne2 b6 13.Qf3 Bb7 14.Qg4 f6 15.0–0 Rac8 16.Nec3 Na5 17.d3 f5 18.Qe2 Bd6 19.Nd2 Bb8 20.Rac1 Nc6 21.Nf3 e5 22.fe5 Ne5 23.Ne5 Be5 24.Nd1 Bb8 25.g3 Qd5 26.Kf2 g5 27.Ke1 f4 28.gf4 1–0. Soininen,Matti – Kuula,Risto, corr Finland, 1974.

4.e3 Be7

5.a4 (--> 4.a4 Be7 5.e3).

5.c4 0–0 6.Nc3 a6 7.a4 cb5 8.ab5 Nc6?? 9.bc6+– dc6 10.Nf3 b5 11.cb5 ab5 12.Ra8 Qc7 13.Ra1 Bd6 14.Be2 Bb7 15.h3 c5 16.d4 cd4 17.Nd4 Bc5 18.Ndb5 Qc6 19.Ba3 Qg2 20.Bc5 Qh1 (20...Qh1 21.Kd2 Rd8 22.Kc2 Be4 23.Bd3 Bd3 24.Qd3 Rd3 25.Rh1 Rd7+–). elefante22 – Fournier,Frederic, Active Blind, 2008.

5.c4 a6 6.a4 cb5 7.cb5 0–0 8.Nf3 h6 9.Be2 d6 10.0–0 Nfd7 11.Nc3 Bf6 12.Qb3 Nc5 13.Qc2 Nbd7? 14.Nd1?? ab5+= 15.ab5 Ra1–/+ 16.Ba1 Ba1 17.d4 b6 18.Qa2 Bd4 19.Nd4 Bb7 20.g3 Qc7 21.Bf3 Bf3 22.Nf3 Qb7 23.Nc3?? Ra8 24.Qe2–/+ Ra3 25.Nb1 Qe4?? 26.Nbd2 Qc2 27.Re1 Qd3 28.Qd3 Nd3 29.Rd1 N7c5 30.Ne1? Ra5?? 31.Nd3+/– Nd3 32.Ne4?? Nb2 33.Rd6 Rb5 34.Kg2 Kf8 35.Rd2 Ke7 36.Nc3 Rb3 37.Kf3 Nc4 38.Rc2 Na3 39.Rc1 Nb5 40.Nb5 Rb5 41.Rc7 Kf6 42.Rb7 g5 43.g4 Rb4 44.e4 Kg6 45.Ke3 f6 46.f3 h5 47.h3 e5 48.Kf2 hg4 49.hg4 Rb3 50.Kg3 b5 51.Kf2 b4 52.Kg3? Rb1 53.Kf2 b3 54.Kg2 Rb2 ½–½. valpa – Ivan_Lacerda, playchess.de, 2003.

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

5.bc6 dc6 6.Be2 Nbd7 7.Bf3 Nb6 8.Ne2 Bd7 9.a4 Qc7 10.a5 Nbd5 11.Bd5 ed5 12.d4 0–0 13.0–0 Bd6 14.h3 Rae8 15.Nd2 Kh8 16.c4 Ng8 17.c5 Be7 18.Nf3 a6 19.Ne5 Bc8 20.Rb1 f6 21.Nf3 g5 22.Bc3 h5 23.Rb2 Kg7 24.Qb1 Nh6 25.Ng3 Kh8? 26.Nh5 g4? 27.hg4 Bg4?? 28.Qg6 Bh5 29.Qh6 Kg8 30.Qh5 Rf7 31.Nh4 Bf8 32.Nf5 Rh7 33.Qg4 Kh8 34.g3 Bg7 35.Rfb1 Rg8 36.Rb7 Qc8 37.Rb8! Qd7 38.Rg8 Kg8 39.Qf4 Kf7 40.Nd6 Kg6 41.e4 Bh6 42.Qf5 Qf5 43.ef5 Kg5 44.Bd2 Kg4+– 45.Bh6 Rh6 46.Rb6 Kf3 47.Rb3 Ke2 48.Kg2 Kd2 49.Rb6 Kd3 50.Ra6 Kd4 51.Ra8 Kc5 52.Nf7 Rh7 53.Nd8 d4 54.Ne6 Kc4 55.a6 d3 56.Rd8 Ra7 57.Rd4 Kc3 58.Rd6 c5 59.Rc6 c4 60.Nf4 d2 61.Nd5 Kc2 62.Rc4 Kb3?? 63.Rc5 d1Q–/+ 64.Ne3?? Qd7 65.Rd5 Qc6 (65...Qc6 66.Kh3 Qa6–+ (< 66...Ra6 67.Rd3 Kb4 68.Rd4 Kb5 69.Rd5 Kb6 70.Rd6 Qd6 71.Nc4 Kc5 72.Nd6 Kd6 73.Kh4–+)) 0–1. wojtekkk – superos69, kurnik, 2011.

5.Nf3 cb5 6.Bb5 a6 7.Be2 b5 8.0–0 d5 9.a4 b4 10.c3 bc3 11.Nc3 Ne4 12.Ne4 de4 13.Qb1 ef3? 14.Bf3+– 0–0 15.Ba8 Nd7 16.d4 Nf6 17.Rc1 Qd6 18.Bc6 Bd7 19.Ba3 (19…Qa3 20.Ra3 Ba3 21.Rc2+–) 1–0. Bonetti,Shane – varenne, ICC, 2002.

5.Nf3 Qb6 6.a4 0–0 7.a5 Qd8 8.c4 d5 9.d4 cb5 10.cb5 a6 11.b6= Nc6 12.Be2 Bb4 13.Bc3 Bd6 14.Nbd2 Bd7 15.Ne5 Rc8 16.Qb3 Qe7 17.Nd7 Qd7 18.0–0 h6 19.Rfe1 Nh7 20.e4+= de4 21.Ne4 Be7 22.Rad1 Nf6 23.Bf3 Rcd8 24.Nf6+/– Bf6 25.d5 ed5 26.Rd5 Qc8 27.Bf6 gf6 28.Rc5 Rfe8 29.Re3 Re3 30.Qe3 Re8 31.Qc3 Qe6+/– 32.g3 Nd8 33.Kg2 Kg7 34.Rc8 Kf8 35.Qc7 Qe7 36.Rb8 Ne6 37.Qe7 1–0. Hartmann,A – Radloff,A, corr DDR, 1990.

5.Nf3 d5 6.Ne5 =.

5.Nf3 d6 6.bc6 Nc6 7.d4 0–0 8.c4 d5 9.c5 Qd7 10.Bd3 Bd8 11.0–0 Bc7 12.Ne5 Ne5 13.de5 Ne4 14.Be4 de4 15.Qd7 Bd7= 16.Nc3 Bc6 17.Ne2 b6 18.Nf4? bc5–+ 19.Rac1 Bb6 20.Ba3 Bd5 21.Bc5 Rfc8 22.Bb6 ab6 23.Rc8 Rc8 24.a3 g5 25.Ne2 h5 26.Ra1 Rc2 27.Nc1 b5 28.g3 Kg7 29.Kg2 Kg6 30.h4 g4 31.Kg1 Kf5 32.Kg2 Ke5 33.Kg1 Bc4 34.Kg2 f5 35.Kg1 Kf6 36.Kg2 e5 37.Kg1 f4 38.gf4 ef4 39.ef4 Kf5 40.Kg2 Kf4 41.Kg1 Kf3 42.Kh2 Rf2 43.Kg1 Rf1 44.Kh2 g3 45.Kh3 Rh1# (45...Be6#) 0–1. abt – baisse, Caissa.com, 2004.

5.Nf3 0–0

6.a4 a6 7.c4 ab5 8.ab5 Ra1 9.Ba1 cb5 10.cb5 Qa5 11.Bc3 Qb6 12.Be2 d6 13.0–0 Bd7 14.Bd4 Qa5 15.Qb3 e5 16.Bc3 Be6?? 17.Qe6+– (17.Qe6 fe6 18.Ba5+–; 17.Ba5?! Bb3 18.d4 Nbd7=) 1–0. pcmvr (2845) – nhathuy (2220), net–chess.com, 2009.

6.Nc3 d5 7.g3 a6 8.a4 ab5. Plath – Zimmer, corr SOK–89–39, 1989.

6.Nc3 d6 7.Bc4 cb5=+ 8.Bb5 a6 9.Be2 Nc6 10.0–0 d5 11.Rb1 Ne4 12.d3 Nc3 13.Bc3= Bf6 14.d4 b5 15.Qd2 Bd7 16.Bb4 a5?? 17.Bc5?? Ne7 18.Bb5 Bb5 19.Rb5 Re8 20.Rfb1 a4 21.Rb7 Nc6+/– 22.Bb6 Qc8?? 23.Rc7+– Qb8 24.Rc6 a3 25.Rb3 Be7 26.Bc5 Qd8 27.Be7 Qe7 28.Qc3 Qd7 29.Ne5 Qa7 30.Rc7 Qa6 31.Rbb7 Rf8 32.Nf7 Qe2 33.h3 Qd1 34.Kh2 Qe2 35.Nh6! gh6 36.Rg7 (36.Rg7 Kh8 37.Rh7 Kg8 38.Rbg7#) 1–0. Pscheidl,Udo (1780) – Klebe,Dieter (1755), RSS7E easy–106, 2010.

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

6.Bd3 h6 7.0–0 d6 8.Nc3 Nd5 (8...cb5 9.Bb5 a6 10.Be2=) 9.Nd5+= cd5 10.Be2 e5 11.d4 e4 12.Nd2 f5 13.f3 b6 14.a3 (14.c4 dc4 15.fe4 fe4+=) 14...Qd7 (14...Bg5 15.f4 Be7 16.Nb1+=) 15.fe4+= de4 16.c4 a6 17.ba6 Na6 18.Qb3 Kh7 19.Rab1 (19.Qb6? Rb8 20.Qa5 Rb2–+) 19...Bd8? (better is 19...Qd8!?+=) 20.Ne4!+– Bb7 (20...fe4 21.Rf8) 21.Nd2 d5 22.Rbc1 Nc7 23.Qb6 Ne6 24.Qb3+– Bg5 25.c5 Bc6 26.Rb1 Rab8 27.Qc3 f4 28.Nf3 Bf6 29.Bd3 g6 30.Rfe1 fe3 31.Re3 Ng5 32.Ne5 Be5 33.Re5 Qg4 34.Re7 Kg8+/– 35.Re3 Nf3? 36.Kh1+– Nh2 37.Kh2 Qf4 38.Rg3 g5 39.Bc1 Qh4 40.Rh3 Qf2 41.Rh6 Bd7 42.Be3! Qf7 43.Rg6 Kh8 44.Rh1 Qh7 45.Kg1 Qh1 46.Kh1 Rf7 (47.Rg5 Rf6 48.Rd5 Bc6 49.Rh5 Kg8 50.Qe1 Rb5 51.Qg3 Kf8 52.Rh8 Ke7 53.Rh7 Ke8 54.Qg8 Rf8 55.Qe6 Kd8 56.Bg5 Rf6 57.Bf6) +–. market (1910) – R_U_FOREAL (1635), GameColony.com, 2002.

6.Be2 a6 7.a4 a5 8.0–0 Ne4 9.d3+= Nc5 10.c4 d5 11.d4 Ne4 12.Nc3 Nc3 13.Bc3 c5 14.dc5+/– Bc5 15.cd5 ed5 16.Rc1 Ba3 17.Qd4 f6 18.Rcd1 Be7 19.Bc4! dc4 20.Qc4 Kh8 21.Rd8 Rd8 22.Qf7 Bg4 23.Qe7 Nd7 24.h3 Bf5 25.Nd4 Ne5 26.Nf5 Ng6 27.Qg7# 1–0. Woschkat,Karl_Heinz – Graefe,Hartmut, 9.KO/1 CiF, 2002.

6.Be2 cb5 7.0–0 Qb6 8.c4 bc4–+ 9.Qc2 d5 10.Nc3 Nc6 11.Na4 Qa6 12.Rfb1 Nb4 13.Qd1 Bd7 14.Nc3 Bd6 15.a3 Nd3 16.Bd3 cd3 17.Qf1 Rfc8 18.Ne1 Ne4 19.Qd3 Qd3 20.Nd3 Nd2 21.Rc1 Nb3 0–1. gtate (2075) – jsivage (2060), net–chess.com, 2004.

6.Be2 cb5 7.Bb5 d5 8.0–0 =+.

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

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