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TESTD897 Release 2017-07-29
Send your 1.b4 games to me, please. Thank you! /Marek
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(c) Marek Trokenheim

1.b4 d5 2.Bb2 Nf6 3.Nf3 Bg4

(...)

4.a3 Bf3 5.ef3 e6 6.c4 Nc6 (6...dc4 7.Bc4 Nbd7 8.Nc3=) 7.Nc3 (7.c5 Be7=) 7...dc4 8.Bc4 Bd6 (8...a5 9.b5 Ne5 10.d3=) 9.0–0 (9.Bb5 0–0 10.Bc6 bc6=) 9...0–0=+ 10.Re1 e5 (10...Bf4 11.b5 Na5 12.d3=+) 11.Qc2 (11.Ne4 Be7+=) 11...g6 (11...a5 12.b5 Nd4 13.Qd3+=) 12.Nb5 (12.Ne4 a5+=) 12...a6 13.Nd6 Qd6 (13...cd6 14.Rac1+=) 14.d3 (14.f4 ef4 15.Qc3 Kg7+=) 14...Nd4= 15.Qd2 b5 16.Ba2 c5? 17.bc5 Qc5 18.Qg5 Kg7 19.Re5 Qd6–/+ 20.Rc1 h6 21.Qg3 Nh5?? 22.Rh5 Qg3 23.Bd4 f6 24.hg3 gh5 25.Rc7 Kg6 26.Bd5 1–0. Wall,Bill – SantaCruz, Internet, 2002.

4.a4 Na6 5.Bc3 +=.

4.a4 Nbd7 5.b5 (5.Ne5 Ne5 6.Be5 e6+=) 5...e6 6.e3 (6.Ne5 Ne5 7.Be5 Bd6 8.Bd6 Qd6+=) 6...Bd6 7.Be2 0–0 (7...Bf3 8.Bf3 Be5 9.Be5 Ne5 10.0–0+=) 8.d3 (8.0–0 e5+=) 8...e5 (8...c5 9.0–0+=) 9.0–0 Qe7 10.Nbd2 Rad8 (10...Rfd8 11.c4+=) 11.c4 e4 (11...a5 12.cd5 Nd5 13.Nc4=) 12.Nd4 Qe5 The mate threat is Qxh2 13.g3 Qh5 14.f3 ef3 15.Bf3 (15.N4f3 Rfe8+=) 15...Ne5 16.Qe2 Rfe8 (16...Nf3 17.N4f3 Be7 18.Ba3+=) 17.cd5 (17.Bg4 Neg4 18.Rf3 Ne5+=) 17...Nf3–/+ 18.N2f3 (18.N4f3 Nd5 19.Bd4 Bb4–/+) 18...Nd5 19.Nc2 f5 (19...Bc5 20.Bc1–/+) 20.Qf2 (20.Bd4 a5+=) 20...f4 (20...Bh3 21.Rfc1–/+) 21.ef4+= Bf4 22.Qd4?? (22.gf4 Nf4) 22...Bh3?? (22...Re7 23.Rae1 Rde8+=) 23.Ne5 (23.Qg7) 23...Ne3 24.Qc3?? Re5 25.Qc7?? Ree8 26.Ne3 Be3 (26...Be3 27.Rf2 Bf2 28.Kf2 Qe2 29.Kg1 Qg2#) 0–1. Minguez Perez,Santiago (2515) – Mirzoev,Azer (2515), Hostafrancs op 3rd, 2001.

4.Bb2 e6 5.a3 Nbd7 6.c4 c6 7.c5 Be7 8.d4 Ne4 9.Bd3 0–0 10.Qc2 f5 11.Ne5 Ne5 12.de5 Bh4 13.0–0 Qg5 14.f4 Qh5?? 15.Bd4?? Qg6= 16.Nd2 a5 17.b5 Bh3 18.Nf3 Be7 19.bc6 bc6 20.Rfc1 Bg4 21.Nd2 Qe8 22.Rab1 Qd7 23.Rb6 Bd8 24.Rb2 Bc7 25.Rcb1 Rfb8 26.Rb8 Rb8 27.Rb8 Bb8 28.Be4 fe4 29.Nb3 Qa7 30.Bb2 Qa6 31.Nd4 h5 32.h3 Bf5 33.a4 Kf7 34.Nf5 ef5 35.Qd1 g6 36.e6 Ke6=+ 37.Qd4 (37...Qe2 38.Bc3=+). Taulien,Hans_Juergen (2225) – Schulz,Hans_Juergen (2145), remoteschach.de, 2006.

4.b5 Nbd7 5.a4 e6 6.e3 Bd6 7.Be2 0–0 8.d3 e5 9.0–0 Re8 10.Re1 Bf3 11.Bf3= Nf8 12.Nd2 c6 13.c4 Bc7 14.bc6 bc6 15.cd5 cd5 16.e4 Rb8 17.Rb1 Ne6 18.ed5 Nd5 19.Nc4 Ndf4 20.Bc6 Qg5 21.Qg4?? Red8 22.Qg5+= (White gets the initiative) 22…Ng5 23.Be5 Be5 24.Ne5 Rb1 25.Rb1 f6 26.Nf3 Ne2 27.Kf1 Nf3 28.Bf3 Nc3 29.Ra1 a5 30.Ke1 Rd4 31.Kd2 Ra4 32.Rc1 Nb5 33.Rc5 Rb4? 34.Bc6+– Nd4 35.Bd5 Kf8 36.Ra5 Rb5 37.Ra8 Ke7+/– 38.Ra7 Kd6 39.Bc4 Rg5 40.g3 Nc6 41.Ra8 Ra5 42.Rg8 Ra7+/– 43.Ke3 Re7 44.Kf4 Ne5 45.Rd8 Rd7 46.Rd7+– Kd7 47.Ke4 Kd6 48.Bg8 h6 49.f4 Nc6 50.d4 Ne7 51.Bf7 Nc6 52.h4 Ne7 53.g4 Kc7 54.h5 Kd6 55.d5 Nc8 56.Be6 Ne7 57.Kd4 g6 58.f5 g5 59.Kc4 Ke5 60.Kc5 Nd5 61.Bd5 Kf4 62.Kd6 (62...Kg4 63.Ke6 Kh5 64.Kf6+–) 1–0. Rusanov,Michail (2445) – Stepanov,Timofej (2225), White Nights op, 1999.

4.c4 dc4 5.Ne5 +=.

4.d3 a6 5.Nbd2 e6 6.a3 Nbd7 7.g3 c5 8.bc5 Bc5 9.Bg2 (better is 9.e3!?+=) 9...Qb6–/+ 10.d4 Qb2 11.dc5 Nc5 12.0–0 Qc3 13.h3 Bf3 14.Nf3 Nfe4 15.Qd4 0–0 16.e3 Rac8 (16...Qc2?! 17.Rac1 Qd3 18.Rc5 Qd4 19.ed4 (19.Nd4?? Nc5 20.Rb1 Rac8–+) 19...Nc5 20.dc5–/+) 17.Qc3 Nc3 18.Nd4 e5 19.Nf5 Rc7 20.Kh2 g6 21.Nh4 e4 22.f3 Re8 23.fe4 N5e4 0–1. israelflavio (2240) – pierred (2740), net–chess.com, 2013.

4.d3 Bf3 5.ef3 e6 6.Qd2 =+.

4.d4 e6 5.Nbd2 (5.a3!?+=) 5...Bb4–/+ 6.c3 Bd6 7.h3 Bf5 8.e3 Nbd7 9.Be2 0–0 10.0–0 b6 11.c4 dc4 12.Bc4 c5 13.dc5 Bc5 14.e4 (14.Nh4 Be4+=) 14...Bg6 (14...Ne4!? 15.Ne4 Be4–+) 15.Qe2 White prepares e5 15...Qc7 16.Rac1 Rac8 17.Nb3 (17.Ba6 Rcd8–/+) 17...Qf4 (17...Be4!? 18.Nc5 bc5–+ (worse is 18...Qc5 19.Ba6+/–)) 18.e5–/+ Ne5 ½–½. israelflavio (2240) – grasimenezes (2275), net–chess.com, 2013.

4.e3 Nf6 5.a3 Bd6 6.Be2 0–0 7.0–0 Nbd7 8.d4 c6 9.Nbd2 Qc7 10.h3 Bf3 11.Bf3 e5 12.c4 ed4 13.Bd4 Bh2 14.Kh1 Be5 15.cd5 Bd4 16.ed4 Nd5 17.Bd5 cd5 18.Qf3 Nf6 19.Rac1 Qd7 20.Nb3 b6 21.Rc2 Qa4 22.Na1 a5 23.Rb1 ab4 24.Rb4 Qa3 25.Qa3 Ra3 26.Nb3 Re8 27.Rb6 Re1 28.Kh2 h5 29.Rb8 Kh7 30.Rb2 h4 31.Rf8 Kg6 32.Rh8 Nh5 33.Rc8 Nf4 34.Rc3 Rd1 35.Rf3 Ne6 36.Rd2 Rd2 37.Nd2 Rf3 38.Nf3 Kf5 39.Nh4 Ke4 40.Kg1 Nd4 41.f4 Kf4 42.Kf2 f5 43.g3 Ke5 44.Ng2 Ne6 45.h4 d4 46.h5 f4 47.g4 d3 0–1. Gerber,Vladimir – Nogin,Nikolai, Independence Cup, 2002.

4.e3 Ngf6 5.a3 e5 6.Be2 Bd6 7.0–0 0–0 8.h3 Be6 9.Nc3 c6 10.Ng5 Bf5 11.Na4 Qe7 12.c4 dc4 13.Bc4 b5 14.Bf7 Rf7 15.Nf7 Qf7 16.Nc3 Bd3 17.Re1 e4 18.f3 Bg3 19.fe4 Be1 20.Qe1 Qb3 21.Bc1 Ne5 22.Qg3 Re8 23.Kh2 Ne4 24.Ne4 Be4 25.Qf4 Nd3 26.Qd6 Rf8 27.Qd4 Qe6 28.Bb2 Nb2 29.Qb2 Rf2 30.Rg1 Qd6 31.Kh1 Qg3 0–1. McCarthy,Mike – Alvim,Antonio Carlos (2165), internet, 2001.

4.Ne5 Nc6 5.Ng4+= Ng4 6.e3 Nf6 7.b5 Na5 8.Bd3 b6 9.0–0 e5? (better is 9...e6!?+/–) 10.Be5+– 1–0. Fritz11 – jumbo, casual, 2013.

4.Ne5 Qd6 5.a3 Nbd7 6.Ng4 Ng4=.

4.Ne5 e6 5.h3 Bh5 6.g4 Bg6 7.a3 Bd6 8.d4 0–0 9.Bg2 Nbd7 10.Nd2 Ne4 11.Ng6+/– fg6 12.Nf3?? b5 13.Qd3 c6 14.Rf1 Qb6 15.g5 Bc7 16.h4 a6 17.Bh3 Rae8 18.0–0–0 Bf4 19.e3 Bd6 20.Ne5 Be5–+ 21.de5 Nf2 22.Rf2 Rf2 23.Bd4 c5 24.bc5 Nc5 25.Qc3 Rh2 26.e4?? Ne4–+ 27.Qf3 Qa5 28.Rf1 Qd2 (29.Kb2 Qc2 30.Ka1 Qa2) 0–1. goffy – I need chocolate..., ChessWorld.net, 2005.

4.Ne5 g6?? 5.Ng4+– Ng4 6.Bh8 e5 7.e3 Nf6 8.a3 Nbd7 9.c4 dc4 10.Bc4 Qe7 11.Nc3 0–0–0 12.Qb3 Bh6 13.Bf6 Qf6 14.0–0 Rf8 15.Rac1 a6 16.Nd5 Qd6 17.Nc7! Kc7 18.Ba6 Kb6 19.Bd3 f5 20.a4 e4 21.Be2 Qd2 (22.Bb5 Rd8+–). KrustytheClown – I need chocolate..., ChessWorld.net, 2005.

4.Bf6 ef6 5.a3 a5 6.c3 ab4–/+ 7.cb4 Bb4! 8.Qb3 Nc6 9.g3 Qe7 10.Bg2? Qe2!–+ 11.Ke2 Nd4 12.Kd3 Nb3 13.Re1 Kd8 14.Ra2 Bf5 15.Ke2 Re8 16.Kd1 Bb1 17.Rb2 Bd3 (18.Rb3 Ra3 19.Ra3 Ba3 20.Re8 Ke8–+; 17...Be4 18.Rb3 Ra3 19.Ra3 Ba3 20.Re3–+) 0–1. wlittle (2175) – noplay (2330), net–chess.com, 2005.

4.h3 Bd7 5.e3= e6 6.a3 Bd6 7.d4 (7.Be2 0–0=) 7...0–0+= 8.Nbd2 Ba4 (8...a5 9.ba5 Ra5 10.Bd3+=) 9.Bd3= Nbd7 10.Qe2 Qe7 11.c4 dc4 12.Nc4 Rfd8 (12...Bb5 13.0–0=) 13.0–0 Rab8 (13...Bb5 14.e4 Bf4 15.Bc1 Bc4 16.Bc4 Bc1 17.Rfc1=) 14.Rac1 Nd5 15.Rfe1 N5b6 (15...Bb5 16.Qc2 Bc4 17.Bc4+=) 16.Nb6 Nb6 17.e4 Bf4 18.Rc5 a6 19.g3 Bd6 20.Rh5 g6 21.Rh4 Qf8 22.Bc1 Be7 23.Rh6 Bf6 24.Bf4 (24.Be3 Rd7+=) 24...Rbc8 (24...Bd4 25.Nd4 Rd4 26.Bc7 Qh6 27.Bb8+=) 25.Qe3 Bg7 26.Rh4 f6 27.g4?? (better is 27.e5 Nd5 28.Qe2+=) 27...g5–+ 28.Bg5 fg5 29.Rh7 Kh7 30.e5? Kg8 31.Ng5 Qe7 32.h4 Bh6 33.Qe4 Bg5 34.hg5 Qg5 35.Qh7 Kf8 36.Re3 Rd4 37.Qh8 Ke7 38.Qh7 Kd8 39.Qh8 Be8 40.Be2 Nd5 41.Rg3 Ra8 42.Qf8 Qe5 43.Bf3 Qe1 (43...Qe1 44.Kg2 Nf4 45.Kh2 Qf2 46.Bg2 Rd7 47.Qf6 Kc8–+) 0–1. Vromans,Nico – Comp Chessmaster 4000, The Hague AEGON, 1994. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nf6 4.h3)

4.h3 Bf5 5.g4 Be4 6.b5 c6 7.g5 Bf3 8.ef3= Nfd7 9.f4 e6 10.Qf3 Qc7 11.c4 cb5 12.cb5 a6 13.Na3 ab5 14.Rc1 Qc1?? 15.Bc1+– Ba3 16.Ba3 Ra3 17.Qa3 (17...b4 18.Qb4+–) 1–0. guest1325 – Bastor (1660), ICC, 2003.

4.a3 a5

5.b5 Nbd7 6.e3 e5 7.h3 Bf3 8.Qf3 Bd6 9.d3 0–0 (9...e4 10.Qd1+=) 10.Be2= c6 11.Nc3 Re8 Black plans e4 (11...Qb6 12.0–0+=) 12.0–0= e4 13.Qf5 Re5 (13...h6 14.h4=) 14.Qf4 Ne8 (14...Qe7 15.de4 Rh5 16.e5 Be5 17.Qf3–/+) 15.bc6 (15.de4 Re4 16.Qf3 Ne5–+) 15...bc6 (15...bc6 16.Qh2 Rb8–/+) 0–1. Sternik,Ryszard (1875) – Nookala,Kamesh (1780), FICGS, 2010. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.a3 a5)

5.Ne5 Bf5 6.e3 ab4 7.ab4 Ra1 8.Ba1 e6 9.g4 Bg6 10.Ng6 (10.h4 Qd6= (< 10...Bb4 11.h5+/–)) 10...hg6 11.b5 Bb4 12.g5 Ne4 13.Bg7 Rh7 14.Bd4 (14.Bc3 Qg5 15.Bb4 Qf6=+) 14...Qg5 15.c3 (15.Qe2 Nd7=+) 15...Bd6 16.Qe2 (16.Qf3 c5 17.bc6 Nc6–/+) 16...e5 17.Ba7 Nd7 18.d3 Qf5 19.h4 Bc5 (19...Nec5 20.Bc5 Nc5 21.Nd2–/+) 20.Bc5=+ Ndc5 21.Qa2 Nf6 22.d4 Nce4 23.b6 cb6 24.Bh3 Qf3 25.Rh2 ed4 26.cd4 Kf8 27.Bc8 Ng4 (27...Kg7!?–/+) 28.Nd2=+ Nd2 29.Bg4 Qg4 30.Kd2 Rh4 (30...Qf5 31.Ke1=+) 31.Qd5= Rh2 32.Qd6 Kg7 33.Qe5 (33…Kf8 34.Qh2=) =. b4_player (2165) – top_chess (2015), GameColony.com, 2002.

4.a4 e6

5.b5 c5 6.e3 Nbd7 7.c4 Bd6 8.cd5 ed5 9.Be2 0–0 10.Nc3 Re8 11.Qc2 (11.0–0 Qc7+=) 11...d4–/+ 12.Nd1 (12.ed4 Bf3 Decoy) 12...Nd5 (better is 12...Qe7+=) 13.0–0? (better is 13.Nd4 Nb4 14.Qb1 Be2 15.Ne2=) 13...Nf4! 14.d3? (14.ef4 Re2 Pinning (14...Re2 Deflection)) 14...Ng2! 15.Nd4 (15.Kg2 Bf3 Combination) 15...Bh3 (15...Qh4 16.f4 Ne3 17.Ne3 Re3 18.Bc1 cd4 19.Be3 de3 20.Bg4 Qg4 21.Qg2 Qg2 22.Kg2–+) 16.Nf5 Bf5 17.Kg2 Qh4 (better is 17...Qg5 18.Kh1 Bh2–+) 18.f4 Bh3 19.Kh1 Bf1 20.Bf1 Nf6 21.Bf6 (21.Qg2 Re7–+) 21...Qf6 (21...gf6?! 22.Qg2 Kh8 23.Qb7+=) 22.Ra2 Rac8 23.Nc3 Bf8 (23...Qe6 24.Nd1–+) 24.Ne4 (24.Nd5 Qh4–+) 24...Qe7 25.Bg2 g6 26.Qc4 Bg7 27.Re2 Rc7 28.Ng5 Qd8 29.Bd5 Ree7 30.e4 h6 31.Nf3 Rcd7 32.Rg2 Rd5 (32...Qb6 33.e5–/+) 33.ed5 b6 34.d4 (34.f5 Re3 (worse is 34...gf5 35.Qc3 f6 36.Qc4=) 35.Qf4 Rd3 36.fg6 Rd1 37.Ng1 fg6–/+) 34...cd4 35.Nd4 Re4 (35...Re1 36.Rg1 Re4–/+) 36.Ne6 (36.Nc6 Rc4 37.Nd8 Ra4+=) 36...Rc4 (better is 36...Re1 37.Rg1 Rg1 (37...fe6 38.Re1 ed5 39.Qc6+–) 38.Kg1 fe6 39.de6 Qd4 40.Qd4 Bd4 41.Kg2 Kg7–+) 37.Nd8+= Rd4 (37...Rf4 38.Nc6+=) 38.Re2 (38.Nc6!? Rd3 39.f5=) 38...Rd5+= 39.Re8 Bf8 40.Nc6 Rd7 (40...Kg7!?–/+) 41.Ra8= Kg7 42.Na7 Rd4 43.Nc6 Rf4 44.Ra7 Bc5 45.Nd8 Kg8 46.Ra8 Kg7 47.Ra7 Rf6 48.Nb7 Be3 49.Nd8 g5 50.Nc6 Rf4 51.Re7 Bc5 52.Ra7 h5 53.Nd8 Rf6 54.Nb7 Be3 55.Nd8 g4 56.a5?? ba5 57.Ra5 Bb6 58.Ra8 Rf5 59.Nc6 Rb5 60.Ne7 Rb1 61.Kg2 Rg1# 0–1. Dziedzic,Ferdynand – Hrynkiewicz,Bartosz, Poznan op–B Poland, 2004.

5.b5 Bd6 6.e3 0–0 7.c4 Nbd7 8.d4 c5 9.Bd3 cd4–+ 10.ed4 dc4 11.Bc4 Bb4 12.Kf1 Ne5 13.Be2–/+ Nf3 14.Bf3 Bf3 15.Qf3 Rc8 16.Na3 Nd5–+ 17.g3 Bc3 18.Bc3 Rc3 19.Qg4? Qe7 20.Nb1 Qf6 21.Kg2 Ne3 22.fe3 Rc2 23.Kh3 g5 24.Qh5 Qf5 25.Qg4 Qg6 26.Na3 f5 (27.Qg5 Qg5 28.Nc2 Qh5 29.Kg2 Qe2 30.Kg1 Qc2–+) 0–1. Wall,Bill – Mango, internet, 2005.

4.b5 e6

5.e3 Bd6 6.c4 c6 7.bc6 Nc6 8.cd5 ed5 9.Be2 0–0 10.0–0 Re8 11.d3 Rc8 12.Nc3 a6 13.Rc1 b5 14.Nd4 Be2 15.Nce2 Nd4 16.Bd4 Qe7 17.Qb3 Be5 18.h3 Bd4 19.Nd4 Rc5 20.a4 b4 21.Nc6 Qd6 22.Rc5 (22.Qb4? Rc6 23.Qd6 Rd6–+) 22...Qc5 23.Nb4 Qd6 24.Qc3 Rb8 25.Nc6 Rb7 26.Ne5 Rc7 27.Qd4 h6 28.Rb1 Re7 29.Nf3 Rc7 30.Qe5 Qc6 31.Nd4 Qc3 32.Kh2 Rc8 33.Rb3 Qc5 34.Rb7 Re8 35.Qg3 Qc8 36.Rb6 Qa8?? (36...Kh7+–) 37.Rf6 (37.Rf6 Qb8 38.Ra6+–) 1–0. aspasio (2660) – cmarcolino (2860), net–chess.com, 2013.

5.h3 Bf3 6.ef3 White has the pair of bishops 6...Bd6 7.a4 0–0 8.d3 Covers e4 (8.Nc3 Re8+=) 8...Nbd7 9.Nd2 White is behind in development. (9.a5 Qe8+=) 9...e5 (9...a6 10.d4–/+) 10.c4 (10.c3 c6 11.Rb1 cb5 12.ab5 Re8–/+) 10...c6 (10...Bb4 11.Be2 c5–/+) 11.a5? (11.Qb3 Qc7+=) 11...Re8 (11...cb5 12.a6 Qb6 13.cb5 ba6 14.Ra6 Qb5 15.Ra2–+) 12.Be2 (12.bc6 bc6 13.Qc2–/+) 12...e4 (better is 12...cb5!? 13.a6 ba6 14.Ra6 Nc5–+) 13.fe4 de4 14.de4 Bb4 Black threatens to win material: Bb4xa5 15.0–0 White castles and improves king safety 15...Ba5 (15...Nc5!? 16.Nf3 Nfe4 (worse is 16...Re4 17.bc6 Qd1 18.Bd1+=) 17.bc6 bc6–/+) 16.Nb3 White threatens to win material: Nb3xa5 16...Bb6 White has an active position 17.Qc2 White prepares the advance (better is 17.Bf6!? is the best option White has 17...Nf6 18.c5 Qd1 19.Rfd1+=) 17...cb5–/+ (17...Re4 Instead of 18.Bf3 Rf4 19.bc6 bc6 20.c5+–) 18.c5 Bc7 (better is 18...Nc5 19.Bb5 Nb3 20.Qb3 Re4–/+) 19.Bb5+= Be5 (19...Ne4? is nothing because of 20.Rfd1 Re7 21.Rd7 Rd7 A) 22.Qe4?! is clearly worse 22...Rd1 23.Rd1 Qd1 24.Bf1 Rb8+= (24...Qb3 25.Qd4 Be5 26.Qe5+–); B) 22.Bd7 Qd7 23.Qe4+–) 20.f3 Prevents intrusion on g4 (20.Be5!? should be investigated more closely 20...Re5 21.Rfd1+=) 20...Bb2= 21.Qb2 a6 22.Ba4 (22.Bd7 Nd7 23.Rad1 Qc7=) 22...Qe7 Exerts pressure on the isolated pawn 23.Rfd1 Rec8 Increasing the pressure on the isolated pawn on c5 24.Nd4 (24.c6 bc6 25.Nd4 Rab8=) 24...Qc5 (24...Nc5!? is worth looking at 25.Nf5 Qc7+=) 25.Bd7 Nd7 26.Qb7 Qc7 27.Qd5 Nf6 28.Qg5 h6 Black threatens to win material: h6xg5 29.Qh4 Qc3 30.Nf5 Black king safety dropped 30...Qc5 31.Kh1 Qe5 32.Ra4 Rd8 Black has a mate threat 33.Rda1 a5 34.f4 White threatens to win material: f4xe5 34...Qb5? 35.e5 Rd1?? solves nothing 36.Rd1+– Qa4 37.Re1 Nd5? 38.Qg4+– g6 39.Nh6 Kf8 40.Qf3 Qc6 41.f5 Ne7 42.f6 Nd5?? causes further problems for? 43.Rd1 Nb4 44.Qe3 Re8 45.Nf5!! Mate attack (45.Nf5 g5 46.Qg5 Qg2 47.Qg2 Re5 48.Qg7 Ke8 49.Qg8) 1–0. Ilia,Naim (1965) – Stuerzebecher,Siegfried, Berlin Eckbauer op 4th, 2001.

4.c4 c6

5.cd5= cd5 6.Ne5 Qb6 (6...Bf5 7.e3=) 7.Ng4+= Ng4 8.e3 Nf6 9.Bd4 Qb4 10.Nc3 Nc6 (10...Qd6 11.Rb1 e5 12.Qa4 Nbd7 13.Rb7+/–) 11.Rb1 Qa5 12.Bf6 ef6 (12...gf6!? 13.Rb7 a6+=) 13.Rb7+/– Bb4 (13...a6 14.Qh5 Nd8 15.Rb1+–) 14.Bb5+– 0–0 15.Bc6 (15.Nd5 Nd8 16.Ba6 Bd6 (16...Qd5?! 17.Rb4 Qg2 18.Ke2=; 16...Nb7?! 17.Bb7 Rab8 18.Nb4 Rb7 19.Nc2–+) 17.Nf6 gf6 18.Qg4 Kh8+=) 15...Bc3 16.Rb3 (16.dc3 Qc3 17.Qd2 Qc6+=) 16...Rab8? (better is 16...Be5 17.Ba8 Ra8+–) 17.dc3 Rb3 (17...Qa2 18.Rb8 Rb8 19.0–0+–) 18.Qb3 Rc8 19.0–0 (19.Bd5?! Rc3 20.Bf7 Kf8=) 19...g6 20.Bd5 Rc3 21.Bf7 Kg7 22.Qe6 Rc7 23.Be8 Qa3 (23...Qe5 24.Bd7+–) 24.Qd5 (24.Bc6 Qe7 25.Qd5 f5+–) 24...Rc1 (24...Qc5 25.Qd2+–) 25.Qf7 Kh6 26.Bb5 (better is 26.Qf6 Rf1 27.Kf1 Qd3 28.Ke1 Qb1 29.Ke2 Qa2 30.Kf3 Qd5 31.e4 Qh5 32.Ke3 Qc5 33.Kd3 Qa3 34.Ke2 Qc5+–) 26...a5 (26...f5 27.g3+–) 27.Qf6 Rf1 28.Bf1 Qa2 (28...Qc5 29.h4 Qb4+–) 29.Qf8 Kh5 (29...Kg5 30.Qf4 Kh5 31.g4 Kh4 32.f3 Qg2 33.Kg2 a4 34.Qh6) 30.h3 1–0. Sternik,Ryszard (1805) – Boucq,Romain (1805), FICGS, 2015.

5.cd5= Bf3 6.ef3 Nd5 7.Nc3 =.

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

4.d3 Nbd7

5.Nbd2 e6 6.a3 a5 7.h3 (better is 7.b5!?+=) 7...Bf3–/+ 8.Nf3 ab4 9.ab4 Bb4 10.Nd2 0–0 11.e3 Ra1 12.Ba1 c6 13.Be2 Qa5 (13...Qa5 14.Bd4 e5–+) 0–1. israelflavio (2240) – pierred (2740), net–chess.com, 2013.

5.Nbd2 e6 6.a3 Bd6 7.e4 0–0 8.ed5 ed5 9.Be2 Re8 10.0–0 c6 11.c4 Qc7 12.c5? (12.h3 Bf3 13.Nf3 Re7=) 12...Bf4 (better is 12...Bh2!? 13.Kh1 Bf4–+) 13.h3+= Bh5 14.Nd4 Be2 15.Ne2 Re7 16.Nf4 Qf4 17.Nf3 Rae8 18.d4 Nf8 19.Bc1 Qf5 20.Be3 Ng6 21.Re1 Ne4 22.Nd2 Nh4 23.Ne4 Re4 (23...de4?! 24.Qg4 Qg4 25.hg4=; 23...Qe4?! 24.Qg4–/+) 24.Qd2 R8e6 25.f3? (better is 25.Bg5!? Ng2! 26.Kg2–/+) 25...Nf3!–+ 26.gf3 Qf3 27.Bf2?? (27.Qg2 Qg2 28.Kg2 Re3 29.Re3 Re3 30.b5–+) 27…Rg6 0–1. israelflavio (2240) – cristero (2525), net–chess.com, 2013.

5.Nbd2 e6 6.a3 Bd6 7.e4 0–0 8.Be2 e5 9.h3 Bh5 10.0–0 c6 11.ed5 cd5 12.c4 (12.Ne5 Be2 13.Qe2=) 12...e4 (better is 12...Re8!?=) 13.de4+/– de4 14.Nh2 (better is 14.Ng5!? e3 15.fe3 Be2 16.Qe2+/–) 14...Be2 (14...Qc7 15.Ng4 Bg4 16.Bg4 Bh2 17.Kh1=) 15.Qe2= Qe7 16.Rfe1 Rfe8 17.c5 (17.Ng4 Rad8+/–) 17...Bc7 (17...Bf4 18.Rad1=) 18.Nhf1 (18.Ng4 a5+/–) 18...Rad8 19.Ne3 (19.Qb5 Rc8+=) 19...Ne5 20.Rad1 Nd3 (better is 20...Qe6 21.Qb5 b6=) 21.Bf6?? (better is 21.Nf5 Qe6 22.Bf6 Qf6 23.Ne4 Qf5 24.Rd3+/–) 21...Qf6–/+ 22.Rf1 Nf4 (22...Qe5 23.Ng4 Qb2 24.Rb1–/+) 23.Qg4 (23.Qb5!?+=) 23...h5–/+ 24.Qf5 Ne2 25.Kh1 Qf5 26.Nf5 g6 27.Ne3 Nc3 28.Rc1 Be5 (better is 28...Rd2!? 29.Rc3 Red8+=) 29.Ndc4= Bg7 (29...Ne2 30.Rcd1 Bd4 31.Nd6 Be3 32.Rde1 (worse is 32.fe3 Ng3 33.Kg1 Nf1 34.Kf1 Re6–/+; 32.Ne8?! Re8 33.Rde1 Bf2 34.Rf2 Ng3 35.Kg1 f5+=) 32...Bf2 33.Re2+=) 30.Nd6+= Re7? (30...Rd6 31.cd6 Rd8 32.Rfe1+=) 31.Nec4?? (better is 31.Rc3 Bc3 32.Nd5+–) 31...Red7 32.Rfe1 f5 33.f3 b5 34.Na5 ef3 35.gf3 Rd6 36.cd6 Rd6 37.Re8 Kf7 38.Rce1 Bf6 39.Nb3 Nd1 40.Nc5 Nf2+= 41.Kg2 Nd3 42.Nd3 Rd3 43.Rb8 Bh4 44.Rb7 Kf6 45.Rc1 Rd2 46.Kh1 Kg5 47.Ra7 Kf4 48.Ra6 g5 49.Rb6 Kg3 50.Rb5 f4 51.Rbc5 Kh3 52.R5c2+= Rc2? 53.Rc2+– Kg3 54.Rc3 Kf2 55.b5 g4 56.fg4 hg4 57.b6 g3?? 58.Rc2+– Kf1 59.b7 f3 Black intends g2 60.Rc1 Kf2 61.b8Q g2 62.Kh2 Bf6 63.Qb6 1–0. israelflavio (2240) – cristero (2525), net–chess.com, 2013.

5.Nbd2 e6 6.Rb1 c6 7.e3 Qc7 8.Be2 (8.a3!?+=) 8...Bb4–/+ 9.c3 Bd6 10.0–0 0–0 11.Re1 Rad8 12.Nf1 b6 13.g3 e5 14.Kg2 h6 15.h3 Be6 16.Qa4 Nc5 17.Qh4 (17.Qc2 e4 18.de4 de4–+) 17...Be7 18.c4 (18.g4 e4 19.de4 de4–+) 18...d4! 19.ed4 Ng4 20.Qe7 Qe7 21.dc5 e4 (better is 21...Nf2 22.Kf2 Qc5 23.Kg2 f6–+) 22.Nd4? (22.de4 Nf6 (22...Qc5?! 23.hg4 Bg4 24.Ne3+=) 23.Bf6 Qf6 (worse is 23...gf6 24.cb6 Rb8 25.ba7 Qa7 26.Ra1–/+) 24.cb6 ab6 25.Rb6 Ra8–+) 22...Nf6?? (better is 22...Nf2 23.Nc6 Bh3 24.Kh2 Qc5 25.Nd8 ed3–+) 23.Nc6 Qc5 24.Nd8–/+ Rd8 25.Bf6 gf6 26.de4 Qc8 27.g4 h5 28.Ne3 Rd4 Increasing the pressure on the isolated pawn on c4 29.Nd5 Qd8 30.f3 Rd2 31.a3 h4 32.Rb3 Kg7 33.Rd3 Rc2 34.Ne3?? Qd3–+ 35.Nc2 Qc2 0–1. Klaric,Ante (1870) – Miskovic,Bozo (2020), Cvitanovic Memorial–B, 2006.

4.d3 e6

5.a3 Nbd7 6.Nbd2 Be7 7.e4 0–0 8.Be2 de4 9.Ne4 Ne4 10.de4 Bf6 11.Bf6 Nf6 (11...Qf6 12.Qd4 e5 13.Qe3=) 12.Qd8 Rad8 13.e5 (13.Nd2 Be2 14.Ke2 Rd4=) 13...Nd5 (13...Nd7 14.0–0–0 Ne5 15.Ne5 Be2 16.Rde1–/+) 14.h3= Bf5 15.0–0 (15.c4 Nf4 16.Rh2 Be4+=) 15...Bc2 16.Rac1 Be4 17.Ng5 (17.Rfd1!?–/+) 17…Bg6 ½–½. israelflavio (2240) – grasimenezes (2275), net–chess.com, 2013.

5.b5 Be7 6.Nbd2 0–0 7.e3 Qd7 8.a4 c6 9.Rb1 cb5 10.ab5 b6 11.Be2= Qc7 12.0–0 Nbd7 13.h3 Bh5 14.Nd4 Be2 15.Qe2 Rfc8 16.Nc6 Bd6 17.c4 Nb8 18.Bf6+– Nc6? 19.Qg4 g6 20.bc6 Qc6 21.Qg5 Bf8 22.Rfc1 dc4 23.Nc4 Qd5 24.Qd5 ed5 25.Ne5 Bg7 26.Bg7 Kg7 27.d4 Rc1 28.Rc1 a5 29.Rc7 a4 30.Rf7 Kg8 31.Rc7 b5 32.Rc1 a3 33.Ra1 b4 34.Nd3 b3+= 35.Kf1 Kg7 36.Ke1 b2–+ 37.Nb2 ab2 38.Ra8 b1Q 39.Ke2 Qc2 40.Kf3 Qe4 41.Kg3 h5 42.Ra7 Kf6 43.Ra6 Kf5 44.Ra5 g5 45.Rc5 Ke6 46.Rc6 Kd7 47.Rc5 g4 48.hg4 Qg4 49.Kh2 h4 50.Rd5–/+ Ke6 51.Re5 Kf6 52.Kh1 Qe2 53.Kg1? Qe1–+ 54.Kh2 Qf2 55.Kh1 Qg3 56.Re8 h3 57.gh3 Qh3 58.Kg1 Qg4 59.Kf1 Qd1 60.Kf2 Qc2 61.Kf1 Qb1 62.Kf2 Qf5 63.Ke1 Qb1 64.Kf2 Qc2 65.Kf1 Qc4 66.Kf2 Qa2 67.Kf1? Qc4 68.Kf2 Qf7 69.Re5 Kg7 70.Kg2 Qg6 71.Kf2 ½–½. hsingletary (1750) – kostaspetidis (1700), net–chess.com, 2001.

5.Ne5 Bb4 6.c3 +/–.

5.Ne5 Bf5 6.a3 Bd6 =+.

4.e3 c6

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

5.c4 e6 6.Qb3 Nbd7 (--> 1.b4 d5 2.Bb2 Bg4 3.c4 e6 4.Qb3 Nf6 5.e3 Nbd7 6.Nf3 c6).

5.Be2 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.Be2).

5.Be2 Nbd7 (--> 4.e3 Nbd7 5.Be2 c6).

4.e3 Nc6

5.a3 e5 6.b5 e4 (6...Nd4 7.h3 Nf3 8.gf3=) 7.bc6+= ef3 8.gf3 (worse is 8.cb7 fg2 9.Bg2 Bd1 10.Bf6 gf6 11.ba8R Qa8 12.Kd1 Rg8–/+) 8...Be6 (8...Bc8 9.cb7 Bb7 10.c4+=) 9.Bb5 (9.cb7 Rb8 10.Ba6 Bd6+/–) 9...Rb8 (9...b6+=) 10.Nc3 (10.cb7 Bd7 11.Bf6 Qf6 12.Bd7 Kd7+=) 10...Bc5 (10...a6!? 11.Bd3 bc6=) 11.d4 Bd6 12.cb7 Bd7 13.Bd7 Qd7 14.Rb1 Rb7 15.f4 (15.e4!? Qc6 16.Qd3 de4 17.fe4+=) 15...0–0+= 16.0–0 (16.Bc1!? Rb1 17.Nb1+=) 16...Rfb8–/+ 17.Ba1 Ba3 18.Rb7 Rb7 19.Qe2 Ne4 (19...Bd6!?–/+) 20.Ne4+= de4 21.c4 c5 (21...Qf5 22.Kh1+=) 22.d5 a5 23.Kh1 Qh3 24.Rg1 Qf3?? (better is 24...f5=) 25.Qf3+– ef3 26.Bg7 f5?? 27.Bb2 Kf7 28.Ba3 Rb3 29.Bc5 Rb2 30.Rf1 a4 31.Bd4 Rb3 32.c5 a3 33.c6 a2 34.c7 (34.c7 Rb1 35.Rg1 Rg1 36.Kg1 a1Q 37.Ba1 h5 38.c8Q Ke7 39.Qe6 Kf8 40.d6 h4 41.Qe7 Kg8 42.Qg7) 1–0. Fournier,Frederic – Ramonc, Active, 2008.

5.b5 Bf3 6.Qf3 Nb4? 7.Qd1 (7.Kd1 d4 8.e4 a6+–) 7...Qd6? (better is 7...d4 8.Bd4 e6+/–) 8.a3+– d4 (8...Nc2 9.Qc2 e5 10.Be2+–) 9.ab4 de3 10.de3. Fournier,Frederic – COMP ChessChallenger, France (FRA), 1996.

4.e3 Qd6

5.a3 Nbd7 6.c4 c6 7.d4 Ne4 8.Be2 Bf3 9.Bf3 Ndf6 10.Qc2 e6 11.Nc3 Nc3 12.Qc3 Be7 13.0–0 h5 14.Rfe1 Ng4 15.h3 Qh2 16.Kf1 Nf6 17.Ke2 g5 18.Rh1 Qd6 19.b5 cb5 20.cb5 0–0 21.g3 Rfc8 22.Qd3 a6 23.Rhc1 Qb6 24.a4 Rc1 25.Rc1 ab5 26.ab5 (26.Qb5? Qb5 27.ab5 Ra2–+) 26...g4 27.hg4 hg4 28.Bg2 Ra5 Attacks the isolani on b5 29.Bc3 Rb5 30.e4 Rb3 31.ed5 (31.e5 Ba3 32.Rc2 Nh5–/+) 31...ed5 32.Qd2 Nh7 (better is 32...Qe6 33.Qe3 Qe3 34.Ke3 b5–/+) 33.Rc2?? (33.Qc2 Ba3 34.Ra1 Bb2–/+) 33...Rb1 (better is 33...Bg5 34.Bd5 Bd2 35.Bb3 Bc3 36.Rc3 Qd4–+) 34.f4 gf3! 35.Bf3 (35.Kf3 Qg6 Combination; 35.Bf3 Ng5 Decoy) 35...Qb5 (35...Ng5 36.Bg2 Qe6 37.Qe3–+) 36.Qd3 Ng5 37.Qb5 Rb5 38.Bg2 Ne4 39.g4 Rb3 40.Be1 (40.Be4 de4 41.d5 Bd6+=) 40...Bf6 41.Be4 de4 42.d5 Kf8 43.Rc4 Rd3 44.Bb4 Kg8 45.d6 Bd4 46.Rc8 Kg7 47.Re8 Re3 48.Kd2 ½–½. Matveenko,Yury (2145) – Kovalenko,Vladimir (2120), Borisoglebsk Bocharov Memorial 8th, 2008. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 Qd6)

5.a3 Nbd7 6.c4 e5=+ 7.h3 Bf3 8.Qf3 c6 (8...e4 9.Qf5=) 9.cd5=+ Qd5 (9...e4 10.Qf5 Qd5 11.Qd5 cd5 12.Bb5=) 10.Qd5= Nd5 11.Nc3 Bd6 (11...Rd8 12.Nd5 cd5 13.d4+=) 12.Bc4 (12.Ne4 Be7=) 12...N5b6 (12...N7b6 13.d3=) 13.Bb3 f5 (13...Rd8 14.Ne4 Be7 15.d4+=) 14.0–0 (14.Be6 a5+=) 14...Rf8 (14...a5 15.b5=) 15.d4 (15.Rfc1 a5 16.b5 Nc5–/+) 15...Ke7 (15...ed4 16.ed4 0–0–0 17.d5+=) 16.b5 (16.Rfd1 ed4 17.Rd4 Be5=) 16...a6 (16...Rfd8 17.bc6 bc6 18.Rad1=) 17.bc6+= bc6 18.Na4 (18.Rab1 Rab8+=) 18...Rab8 (18...Na4 19.Ba4 Rab8 20.Rab1=) 19.Rab1 (19.Rfb1 Nd5 20.Bc4 f4=) 19...e4 (better is 19...Rfd8=) 20.Bc3 (better is 20.Rfc1=) 20...Ba3–/+ 21.Nb6 Rb6 (21...Nb6?! 22.Ra1 Bd6 23.Ra6=+) 22.Bc4 Rb1 23.Rb1 Rb8 24.Ra1 Bb4 25.Bb4 Rb4 26.Ba6 g6 27.g4 f4 28.Bf1 fe3 29.fe3 c5 30.dc5 Nc5 31.Ra7 Rb7 32.Rb7 Nb7 33.Bc4 h6 34.Kf2 Kf6 35.h4 Nc5 36.Bd5 (36…Nd3 37.Ke2=; 36.Ke2 Ke5=). Pommerel,Wim – Koelbel,Wolfgang, CiF–GM–960194A, 1997.

5.a3 Nbd7 6.h3 Bf3 7.Qf3 e5 =.

5.h3 Bf3 6.Qf3 e5 =.

4.e3 Bf3

5.Qf3 e6 6.a3 Nc6 7.Bb5 e5 8.Bc6 bc6 9.Be5 Ne4 10.c4 f6 11.Qh5 g6 12.cd5 gh5 13.dc6 Qd5 14.Bf6 Rg8 15.f4 Nf6 16.d4 Qg2 17.Nc3 Qh1 18.Kd2 Qa1 19.d5 Nd5! 20.Nd5 Qa3 21.Nf6 Kf7 22.e4 Rd8 23.Nd7 Bb4 24.Kd1 Rg2 25.h4 Qa1# 0–1. Duffer – DoctorLove, ICS game chess.net, 1998.

5.Qf3 e6 6.a3 Nbd7 7.d4 c6 8.Bd3 Be7 9.Nd2 Nb6 (9...a5 10.b5=) 10.0–0 Na4 11.Rfb1 0–0 12.c4 Qd7 13.c5 Rfe8 14.Qd1 Nb2 15.Rb2 a6 16.Qc2 Bd8 17.Nf3 Bc7 18.Ne5 Qe7 19.f4 h6 20.Rf1 Nd7 21.a4 Rec8 22.Qe2 f5 23.Nd7 Qd7 24.Qh5 Qf7 25.Qh3 Qf6 26.g4 Rf8 27.Rg2 Kf7 (better is 27...Rf7!?+=) 28.gf5+– ef5 29.Qf5 Qf5 30.Bf5 Kg8 31.Bg6 a5 32.b5 cb5 33.ab5 b6 (33...a4 34.b6 Bd8 35.Ra2+–) 34.c6 (34.Ra1!? Rf6+–) 34...a4 35.Ra1 Ra5 36.Bd3 a3 37.Raa2 Re8 38.Kf2 Rea8 39.Rg1 Ra4 40.Rb1 Bd6 41.h4 Kf7 42.h5 Kf6 43.Kf3 R4a7 44.Rg1 Kf7 45.e4 de4 46.Be4 Ra4 47.Bd5 (better is 47.Rag2!? Bf8 48.Rc2+–) 47...Kf8+/– 48.Rg6 Bc7 49.Ke4 Rb4 50.f5 Raa4 51.Rd2 Rb2 52.Rgg2 (52.Rd1 Rf2+/–) 52...Rbb4 (52...Rb5 53.f6 gf6 54.Rg8 Ke7 55.Rg7 Ke8 56.Rc7+–) 53.f6! gf6 54.Rg8 Ke7 55.Rg7 Kd8 56.Rd7 Kc8 57.Rg2 (better is 57.Be6!? Rb2 58.Rd1 Re2 59.Kf5 Rf2 60.Kg6+–) 57...Rd4+= 58.Kf5 Rf4 59.Ke6 Rg4 60.Rg7 (60.Kf6? Rg2 61.Bg2 a2–+) 60...Rg7 61.Rg7 1–0. Hurevich,Mikhail (1715) – Van Mulekom,Hans, Nettetal Chessgate op, 2004. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 Bf3)

4.Ne5 Nbd7

5.Ng4 Ng4 6.e4 Ngf6 7.e5 Ne4? (better is 7...Ng8!?+=) 8.d3+– (8.d3 Ng5 9.f4+–) 1–0. Woelfelschneider,Peter – Borchardt, Tigerschachclub, 2001.

5.Ng4 Ng4 6.e4 Ngf6 7.e5 Ne4 8.d3 Ng5 9.f4 e6 (9...Ne6 10.f5 Ng5 11.e6+–) 10.h4 (worse is 10.fg5 Qg5 11.Qd2 Qh4 12.g3 Qb4 13.Qb4 Bb4 14.Nd2 c5+/–) 10...Bb4 11.c3 Be7 12.hg5 (12.fg5?! Ne5 13.Qe2 Qd6+=) 12...c5 13.Nd2 Bg5 (13...Rb8+–) 14.fg5 Ne5 15.Qa4 Kf8 (15...Qd7 16.Qa3 Qe7 17.d4 cd4 18.Qe7 Ke7 19.cd4+–) 16.Ba3 b6 17.d4 Qg5 18.de5 Qe5 19.Kd1 Qc3 20.Rc1 Qg3 21.Rh3 Qc7 22.Bd3 g6 1–0. Carbonell Bofill (2275) – Morello Ostos (1855), Silla op 4th, 2003. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.Ne5 Nbd7)

4.Ne5 h5

5.Ng4 hg4 6.b5 e6 7.e3 Bd6 8.h3 g3 9.f4= Nbd7 10.Nc3 Bb4 11.a3 Bc3 12.dc3 Nb6 13.a4 0–0 14.Qf3= Ne4 15.a5 Nd7 16.Bd3 Ndc5 17.Ba3 Qf6 18.Bb4 Rfd8 19.Ra3 Qh4 20.Bc5 Nc5 21.f5 Qe7 22.fe6= Ne6 23.Ra4 Nc5 24.Rg4 Qe5 25.0–0 Rd7 26.Rg3 Qc3= 27.Qg4 Ne6 28.Bf5+= Re8 29.Qh5 Qa5?? 30.Qh7+– Kf8 31.Be6 Re6 32.Qg7 Ke8 1–0. Crafty 19.01 – EXchess 3.11, 2004.

5.h3 Be6 6.e3 Qd6 7.a3 =.

5.h3 Be6 6.e3 Nbd7 7.Nf3 h4 8.Be2 Rh6 9.Na3 c6 10.Rc1 Qc7 11.c4 Ne4 12.Rf1 f6 13.Qb3 Qd8 14.Nd4 Bf7 15.Nf5 Rh8= 16.Qd3?? e6–+ 17.Nd4 Bb4 18.Rc2?? Ndc5–+ 19.Ne6 Nd3 20.Bd3 Be6 21.Be4 de4 (22.c5 Qd3–+) 0–1. Greisen,Flemming Dahl – Lie,Terje, Politiken Cup, 2001.

5.h3 Bf5 6.e3 =.

4.h3 Bh5

5.g4 Bg6 6.g5 Nh5 7.Nc3 e6 8.Rg1 (8.a3!?+=) 8...Bb4–/+ 9.Rg4 Be7 10.Rd4 c5 11.Rd3? (better is 11.Rg4–+) 11...Bd3 12.cd3 Nc6 13.Qb3 Rb8 (13...Bg5?! 14.Ng5 Nd4 15.Qa4 (15.Qb7? 0–0 16.Nh7 Kh7–+) 15...Qd7 16.Qd7 Kd7 17.Rc1–/+ (17.Nf7? Rhf8–+)) 14.Qb5 0–0 15.Qa4 a6 (15...Bg5 16.Qg4 Nd4 17.Qh5–/+) 16.e4 (16.Qg4 g6–+) 16...Bg5 (better is 16...b5!? 17.Qb3–+) 17.ed5 ed5 (better is 17...Nb4 18.de6 Nf4 (worse is 18...fe6 19.Ng5 Qg5 20.Ne4–+) 19.Ng5 Qg5 20.ef7 Rf7–+) 18.Nd5 (18.Qg4 Qe8 19.Kd1–+) 18...Qd5 19.Ng5 Qg5 20.Rc1 (20.Qg4 Qg4 21.hg4 Rfe8 22.Kd1 Nf4–+) 20...Rfe8 21.Kd1 Nf4 22.Qc4 (22.Kc2 Nb4 23.Kb1 Nfd3–+) 22...Qh5 (22...Nb4 23.Qb4 cb4 24.Rc4–+) 23.Be2 (23.Kc2 Nd4! 24.Kb1–+) 23...Qe2 24.Kc2 Nd3! 25.Rg1 (25.Qd3 Nb4 Deflection (25...Nb4 Decoy)) 25...Ndb4 26.Kb3 Na5 27.Ka4 Qc4 28.Ka5 Qb5# 0–1. Chiddy,Rory – Eime,Roland, Australian op Minor, 2005.

5.g4 Bg6 6.g5 Nh5 7.e3 f6 8.Be2+= fg5 (9.Ne5 Nf6 10.Ng6 hg6=). ramiroski – chiacchiere, internet 2006.

5.g4 Bg6 6.Nh4 Qd6 7.Ng6 hg6 8.Bg2 Qb4 9.Bc3 Qd6 10.0–0 e6 11.d3 Nc6 12.e4 de4 13.Be4 Nd5 14.Bd5 Qd5 15.Nd2 0–0–0 16.Qf3 Qf3 17.Nf3 f6 18.g5 e5 19.gf6 gf6 20.d4 Nd4 21.Nd4 ed4 22.Bd2 Rh3 23.Rfe1 Bc5 24.c3 dc3 25.Bc3 f5 26.Bf6 Rf8 27.Be7 Re8 28.Bc5 Re1 29.Re1 b6 30.Be7 Kb7 31.Re3 Rh7 32.Bf6 Rd7 33.Re7 Rd6 34.Be5 Rc6 35.a4 Rc4 36.a5 Rc5 37.ab6 ab6 38.f4 b5 39.Bd4 Rd5 40.Be5 Rc5 41.Bd4 Rd5 42.Be5 Rd1 43.Kh2 Rc1 44.Kg3 b4 45.Kh4 b3 46.Kg5 Rg1 47.Kf6 Rg2 48.Rc7 Kb6 49.Rc3 b2 50.Rb3 Kc5 51.Rb2 Rb2 52.Bb2 Kd5 53.Kg6 Ke4 54.Kf7 Kf4 55.Kf6 Kg4 56.Be5 f4 57.Bf4 (neither player has mating material) ½–½. Nautiluschess – Dozo, ICS blitz, 2001.

4.a3 Nbd7

5.e3 c6 6.c4 e6 7.h3 Bh5 8.Be2 h6 (8...Bf3 9.gf3 dc4 10.Bc4+=) 9.cd5= ed5 10.0–0 Bd6 11.Nd4 Bg6 12.d3 0–0 13.Nd2 Re8 14.N2b3 Rc8 15.Na5 Bb8 16.Qd2 (16.Nb7? Qc7 17.Nf3 Qb7–+) 16...Re7 17.Rac1 (17.Nb7? Qc7 18.f4 Qb7–+) 17...Qc7 18.g3 Rce8 19.Nac6 (19.Nf3!?=) 19...bc6–/+ 20.Nc6 Re3! 21.Nb8 (21.Qe3 Re6 Double attack (21...Re6 Decoy); 21.fe3 Qg3 Mate attack) 21...Qb8 22.fe3 Qg3 23.Kh1 Qh3 24.Kg1 Re3 (24...Qe3?! 25.Qe3 Re3 26.Kf2=) 25.Rf6 (25.Bf6 Qg3 26.Kh1 Nf6 27.Rf3 Rf3 28.Bf3 Qf3 29.Qg2 Qd3 30.Re1–+) 25...Nf6 26.Bf1 Qg4 (better is 26...Rg3 27.Kf2 Ng4 28.Ke1 Re3 29.Kd1 Qf1 30.Kc2 Bd3 31.Kb3 Bc4 32.Ka4 Qf3 33.Rc4 dc4–+) 27.Kh1 Rg3 28.Qh2 Bd3 29.Rc8 Kh7 30.Bd3 Rd3 31.Qc2 Qf3 32.Kg1 Ne4 (32...Ne4 33.Qd3 Qd3–+) 0–1. Pesotsky,Vitaly (2315) – Morev,Ivan (2265), Lipetsk King's Gambit–B, 2009. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.a3 Nbd7)

5.e3 e5

6.Be2 Bd6 7.d4 (7.Nc3 0–0+=) 7...ed4 (7...e4!? 8.Ne5 Be2 9.Qe2 0–0+=) 8.Nd4+= Be2 9.Qe2 0–0 10.Nd2 Re8 11.c4 c6 (11...c5 12.bc5 Nc5 13.0–0+=) 12.cd5 Nd5 13.Nc4 (13.0–0 g6=) 13...Ne5+= 14.Nd6 Nf4 (14...Qd6!? 15.0–0 a5+=) 15.Nb7+= (15.ef4 Nd3 16.Kf1 Re2 17.Ne2 Nb2 18.Nb7 Qd2–+) 15...Qd5 16.Qc2 (16.ef4? Nd3 17.Kf1 Re2 18.Ne2 Nb2–+) 16...Ng2 17.Ke2 (17.Kd2!? Nc4 18.Kc3 Nge3 19.Qd3=) 17...Nf4= 18.ef4 Nf3 19.Kd3 Qe4 20.Kc4 Qd5 ½–½. Sevian,Samuel (2565) – Harmon_Vellotti,Luke (2410), 24th Chicago Open, 2015. (=1.Nf3 Nf6 2.a3 d5 3.b4 Bg4 4.Bb2 Nbd7 5.e3 e5)

6.h3 Bf3 7.Qf3 Bd6 8.d3 a5 9.b5 e4 =+.

6.h3 Bf3 7.Qf3 Bd6 8.d3 c5 9.bc5 Qa5 10.Nd2 Nc5 11.Qf5 Nfd7 12.Rb1 Rc8 13.Be2 g6 14.Qf3 Na4 15.Bc1 (15.Bd1 Nb2 16.Rb2 b6–/+) 15...f5 (15...Rc2?! 16.Bd1 Rc6 17.Ba4 Qa4 18.Qd5=+) 16.e4 Rc3 (better is 16...Nc3 17.Ra1 fe4–+) 17.ef5= (17.Rb7? de4 (17...Rc2?! 18.0–0–/+) 18.Qe3 Ndc5–+; 17.ed5 Rc2 18.Bd1 Rc3 19.Ba4 Qa4=) 17...0–0 (< 17...Rc2 18.Bd1 Rc3 19.fg6 hg6 20.Ba4 Qa4 21.Bb2+=) 18.Qg3 (18.Qe3 A) < 18...Rf5 19.Bg4+= (< 19.Rb7 Rc2 20.0–0 Bc5–/+); B) 18...Rc2 19.Bd1 Bc5=+) 18...Qc7–/+ (< 18...Rf5 19.Bg4 (< 19.Rb7 Rc2 20.0–0 Nab6–/+) 19...Rf7 20.Be6+/–) 19.fg6 Rc2 20.gh7 (20.0–0 Nc3 21.Bd1 h5= (< 21...Nb1 22.Bc2 Nd2 23.Bd2+/–)) 20…Kh8 (21.Nc4 A) 21...dc4?! 22.Bh6 Nf6 23.Bf8 Bf8 24.Qg6 (24.dc4? Re2 25.Kf1 Qc4–+) 24...cd3 A1) < 25.Qf6 Bg7 26.Qe6 Qc3 (26...Re2?! 27.Kf1 Qd8 28.Rb7–/+) 27.Kf1 de2 28.Kg1 Qc8–/+; A2) 25.Bd3 Rc1 26.Kd2=+; B) 21...Bc5=+) 0–1. Rosner,Dirk – Poschmann,Hans, Tigerschachclub, 2002.

6.h3 Bf3 7.Qf3 Bd6 8.Qf5 e4 9.h4 (9.f4 h6 10.h4 a5=+) 9...a5 (9...c6 10.h5=+) 10.b5 g6 (10...Qe7 11.Nc3 Ne5 12.Be2=+) 11.Qh3= Be5 12.Be5 Ne5 13.Be2 d4 14.ed4 Qd4 15.Nc3 h5 (15...h6 16.Rd1=) 16.0–0 (16.Rd1 Neg4 17.Bg4 Ng4=+) 16...Nfg4 17.b6 (17.Qg3 0–0–0=+) 17...c6 18.Ne4 Qe4 19.Rfe1 (19.Bg4 hg4 (< 19...Qg4 20.Qe3 Qe6 21.Rae1+=; 19...Ng4?? 20.Rae1 Qe1 21.Re1 Kf8 22.Qc3+–) 20.Qc3 A) 20...Rh4?? 21.Rae1 g3 22.f4 (22.Re4?! Re4 23.Qg3 Nd7+–; 22.Qe5?! Qe5 23.Re5 Kf8+=) 22...Rf4 23.Qe5 Qe5 24.Re5 Kf8 25.Rf4+–; B) 20...0–0–0=+) 19...0–0–0 (19...Qd4 20.Bg4 hg4 21.Qe3 Qe3 22.Re3 (22.fe3?? g3–+) 22...Rh4 3.Re5 Kd7 24.Rae1=) 20.Bg4= Qg4 21.Re5 Qh3 22.gh3 Rd2 23.c4 a4 ½–½. Baer,Werner (2105) – Meier,Franz, TT–13 ETC, 2004.

5.h3 Bf3

6.ef3 e5 7.Qe2 (7.d4 Bd6=+) 7...Bd6–/+ 8.Qb5 Qb8 9.Be2 0–0 10.0–0 c6 11.Qd3 b5 12.Qc3 Qb6 13.a4 ba4 14.Ra4 d4 15.Qb3 Nd5 16.Na3 Bb4 (< 16...Nb4 17.Nc4 Qc7 18.Nd6+/–) 17.Nc4 Qb8 18.Raa1 Qd8 19.Rfe1 Qg5 20.c3 Nf4 21.g3 d3 (better is 21...Ne2!? 22.Re2 d3–+) 22.cb4–/+ Ne2 23.Kg2 Rfb8 24.Kh2 Qf5 25.Ne3 Qf3 26.Qd3 Rb4 27.Qe2 Qe2 28.Re2 Rb2 29.Nc4 Rb5 30.f4 f6 31.Ra6 ef4 32.gf4 Nb6 33.d3 Rb4 34.Kg3 Rb3 35.Nb6 Rb6 36.Rb6 (36.Rea2 Rd8 37.Ra7 Rd3 38.Kg4 Rb5–+) 36...ab6 37.Re6 Rc8 38.f5 b5 39.Kf4 Kf7 40.Rd6 Ke7 41.Re6 Kf7?? (41...Kd7 42.Re2–+) 42.Rd6 Ke7?? (42...Ke8 43.d4–+) 43.Re6 Kd7 44.Re2 Kd6 45.Rg2 (45.Re6 Kd5–+) 45...Rc7 46.Ke4 (46.d4 Kd5 47.Ke3 Ra7–+) 46...c5 47.Rb2 Re7 48.Kf4 Rb7 49.Ke4 b4 50.Rb3 (50.Ra2 Rb6–+) 50...Re7 51.Kf4 (51.Kf3 Kd5–+) 51...Kd5 52.h4 Kd4 53.h5 (53.Rb2–+) 53...Re3 54.Rb1 Rd3 55.Ra1 (55.Kg4 b3 56.Rb3 Rb3 57.h6 gh6 58.Kh4 c4 59.Kh5 c3 60.Kh6 c2 61.Kh7 Rb7 62.Kh8 c1Q 63.Kg8 Qc8#) 55...b3 56.Ra4 (56.Rg1 c4–+) 56...c4 57.Rb4 Kc3 (58.Rb7 b2–+) 0–1. b4_player (2155) – maluco (2125), GameColony.com, 2003.

6.ef3 e6 7.d4 a5 8.b5 Nb6 9.Bd3 Bd6 10.c4? (better is 10.a4=) 10...dc4–+ (10...Nc4?! 11.Bc4 dc4 12.Nd2–/+) 11.Be2 Nfd5 12.Qc2 Qg5 13.g3 Bg3! 14.fg3 Qg3 15.Kd2 Qg5 16.Ke1 Qg2 17.Rf1 Ne3 18.Qc1 Nf1 19.Bf1 Qf3 20.Qg5? Qb3 21.Bc1 0–0 22.Qg2 Rfe8 23.Bh6 g6 24.Qf2 Nd5 25.Nd2 Qc3 26.Rb1 e5 27.Bc4 ed4 28.Kf1 Ne3 29.Kg1 Nc4 (29...Nc4 30.Nc4 Qh3–+ (30...Qc4?? 31.Qf6 Re1 32.Re1 Qf1 33.Kf1 Re8 34.Re8)) 0–1. Tiedemann,Joern (2125) – Schmidt,Horst (2330), RS–Pyramide remoteschach.de, 2006.

4.a3 e6

5.e3 c5 6.bc5= Bc5 7.h3 Bf3 8.Qf3 Nbd7 9.c4 0–0 10.cd5 Nd5 11.Nc3 Nc3 12.Bc3 Qc7 13.Qg4 e5 14.Bb5 Nb6 15.Qf5 Bd6 16.0–0 Rac8 17.a4 Qe7 18.Rfc1 Rc5 19.Bb2 Rfc8 20.Rc5 Rc5 21.Qe4 a6 22.Be2 f5 23.Qb1 Qe6 24.Ba3 Rc6 25.Bd6 Rd6 26.a5 Nd5 27.Bc4 Qc8 28.d3 Kh8 29.Qb2 b5 30.ab6 Nb6 31.Ba6 Qc5 32.Rc1 Qa5 33.Rc7 h6+/– 34.Bb5 Rd5 35.Bc4 Rd8 36.Re7 Nc4 37.dc4 Qc5 38.Qe5 Qe5 39.Re5 Rc8 40.c5 g6 41.h4 Kg7 42.Rd5 h5 43.Kh2 Rc6 44.f3 Re6 45.Rd3 Rc6 46.Rc3 Kf6 47.Kg3 Ke5 48.Rc2 Ke6 49.Kf4 Kf6 50.e4 fe4 51.fe4 Ke6 52.e5 Kd7 53.Rc3 Kc7 54.g3 Kd7 55.Ke4 Rc8 56.Kd5 Rd8 57.e6 Ke7 58.Ke5 Rd1 59.c6 (59...Re1 60.Kf4+–) 1–0. Cetwinski,Olgierd (2210) – Turzynski,Jozef (2290), corr Poland–ch42, 1999.

5.e3 Bd6 6.h3 Bf3 7.Qf3 =.

5.e3 Nbd7 6.h3 Bh5 7.c4 c6 8.d4= (8.cd5 cd5 9.Nc3 a5 10.ba5 Qa5 11.Rc1 h6 12.Nb5 Bc5) 8...Bd6 (8...a5 9.b5 Nb6 10.bc6 bc6 11.cd5 Nbd5 12.Nbd2 Rb8) 9.Be2 (9.Nc3 0–0+= 10.c5 Bc7 11.Be2 Ne4 12.0–0 f5; 9.c5 Bc7 10.Nc3 0–0 11.Be2 Ne4 12.0–0 f5) 9...dc4+= 10.Bc4 0–0 (10...a5 11.b5= Rc8 12.Nc3 Nb6) 11.Nbd2 (11.Nc3 a5 12.b5 Nb6= (12...Rc8=)) 11...b5 (11...a5 12.b5+= Nb6) 12.Be2 (12.Bd3 a5=) 12...a5+= 13.ba5 Qa5 14.0–0 Nb6 (14...Rfd8 15.Qc2 Rdc8 16.a4=) 15.Ne5 (15.Qc2 Rfc8+=) 15...Be2 (15...Na4 16.Bh5 Nb2 17.Bf7 Rf7 18.Qc2 Be5 19.de5=) 16.Qe2 Rfc8 (16...Na4 17.Ndf3 (17.Nc6? Qb6–+) 17...Rfc8 18.Rfc1+=) 17.Nb3 Qa7 18.Rfc1 Be5 19.de5 Nfd7 20.Nd2 Qa4 21.Rab1 Rab8 22.Qd1 (22.Qf3 c5=) 22...h6 (22...Qd1 23.Rd1 Rd8 24.Rdc1+=) 23.Qa4 (23.Qf3 c5=) 23...Na4 24.Ba1 Nab6 (24...Ndc5 25.Kf1+=) 25.Rb3 (25.Ne4 Nc4 26.Nd6 Nd6 (26...Nce5? 27.Nc8 Rc8 28.Be5 Ne5 29.Rb5+–) 27.ed6 e5=) 25...Kf8 26.g3 (26.Ne4 Nc4 27.Nd6 Nd6 (27...Nde5? 28.Nc8 Rc8 29.Be5+–) 28.ed6 c5=) 26...Ke7 27.Kg2 f5 28.e4 Ra8 29.ef5 ef5 30.e6 Nf6 31.Re1 g6 32.Bd4 Nbd5 33.Bc5 Kd8 34.Kf1 Ra4 35.Rd3 Ke8 36.Re5 Rd8 37.f3 Rda8 38.Ke2 Ng8 39.h4 Nge7 40.Kf2 Rc8 41.Re2 h5 42.Re1 Rca8 43.Rd1 Ng8 44.Kg1 R8a6 45.Kg2 Ngf6 46.Re1 Ra8 47.Kh2 Ng8 48.Rd1 Nge7 49.Kg1 Rb8 50.f4 Nf6 51.Nf3+= Ned5 52.Ne5 Rc8 53.Ng6 Rc4 54.Bb4 Ng4 55.Re1 Ra8 56.Ne5 Nb4 57.ab4 Re4 58.Re4 fe4 59.Rc3 Ra1 60.Kg2 Ra2 61.Kf1 Ne5 ½–½. Winiger,Albert (2150) – Taulien,Hans_Juergen (2225), RSX8D – priv – XMAS, 2004.

5.h3 Bf3 6.gf3 a5 7.b5 Be7 8.e3 Qd6 9.Be2 Nbd7 10.Rg1 0–0 11.f4 e5 Black plans d4 12.f5 (12.fe5!? Ne5 13.Bd4=) 12...Nc5 13.Nc3 (13.a4!?+=) 13...d4–/+ 14.Na2 Rfd8 15.d3 de3 16.fe3 Na4 17.Bc1 e4 18.d4 Qh2 19.Kd2 Qf2 20.Qf1?? (20.c3 Nd5 21.Qf1+=) 20...Rd4! 21.ed4 Qd4 22.Ke1 Qa1 23.Qg2 (23.Bc4 Nb2 24.Qg2 Bf8–+) 23...Bf8 24.Qg5 Kh8 (24...Qa2?! 25.Qf6 Qb1 26.Kd1–+) 25.Bc4 Nc3 0–1. pc4fun – Fritz 11, internet, 2013.

5.Ne5 Bh5

6.c4 Bd6

7.Qa4 c6

8.c5 Be5 9.Be5 Nbd7 10.Bb2 0–0 11.e3=.

8.c5 Be5 9.Be5 Nbd7 10.Bb2 Qc7 11.e3 0–0 12.Bd3 Ne5 13.Bc2 Bg6 14.Bg6 fg6 15.Be5 Qe5 16.d4 Qf5 17.Nd2 e5 18.0–0 Ng4 19.b5 cb5 20.Qb3 ed4 21.ed4 Nh2 (< 21...Nf2 22.Rae1+/–) 22.Kh2 Qf4 23.Kg1 Qd2 24.Qd5 Rf7 25.Rae1 Raf8 (25...Kf8 26.Re3+=) 26.Re7+/– b4 27.Rb7 ba3 28.Ra7 Qb2 29.c6 Qc3?? (Better is 29...Qb4+/–) 30.Rf7+– Rf7 31.Rb1 h5 32.Rb8 Kh7 33.Qf7 Qc6 34.Rb7 Qc1 35.Kh2 Qh6 36.Rb8 Qc1 37.Qg8 Kh6 38.Qh8 Kg5 39.Rb5 Kg4 40.f3 Kf4 41.Qe8 1–0. b4_player (2185) – flexR (1875), GameColony.com, 2002.

8.c5 Be5 9.Be5 Nbd7 10.Bb2 Bg6 11.e3= 0–0 12.Be2 Qc7 13.0–0 a5 (13...b5 14.Qd1=) 14.d3 ab4 15.Qb4 Ra7 16.f4 Rfa8 17.Bd4 Qa5 18.Nd2 Qb4 19.ab4 Ra2 20.Nb3 Bf5 21.Rfe1+= h6 22.Na5 Ra1 23.Ra1–/+ Rb8 24.Kf2 Ng4 25.Kg3 Ngf6 26.Nb3 Bg6 27.Ra7+– Re8 28.Rb7 e5 29.fe5 Ne5 30.Be5 Re5 31.Nd4 Re3 32.Kf2 Re8 33.Nc6 Kf8 34.b5 Bf5 35.Ra7 Bd7 36.Nd4 Bg4 37.Bf3 h5 38.Nc6 Re6 39.d4 Ne4 40.Be4 Re4 41.h3 Bc8 42.b6 Rf4 43.Kg3 Re4 44.b7 Bb7 45.Rb7 h4 46.Kf2 Ke8 47.Ne5 Rd4 48.Rb8 Ke7 49.Nc6 Kd7 50.Nd4 1–0. kamret (1950) – NN, GameColony.com, 2002.

8.e3 Nbd7 9.Nd7 Qd7 10.cd5 ed5 (10...cd5?? 11.Bb5 a6 12.Bd7 Nd7 13.0–0+–) 11.Bf6 gf6 12.d4 Qf5 (12...b5 13.Qa6=) 13.b5 (13.Nc3 0–0+=) 13...0–0 14.bc6 Rac8 15.Nd2 Rc6 16.h3 Bg6 17.Qa7 Rc3 18.g4 Re3 19.fe3 Bg3 20.Kd1 Qc2 21.Ke2 Re8 22.Ra2 Qd3 23.Kd1 Qe3 24.Bd3 Bd3 25.Kc1 Rc8 0–1. kolya (2045) – aks (1900), GameColony.com, 2002.

8.e3 Ne4 9.Qc2=.

4.c4 e6

5.a3 Be7 6.h3 Bf3 7.ef3 0–0 8.cd5 Qd5 9.Nc3 Qd6 10.Ne4 Ne4 11.fe4 Nc6 12.Bc4 Nd4 13.0–0 Bf6 14.Bc3 b5 15.Bd3 Rad8 16.Qg4 a6 17.a4 c6 18.Ra2 Rd7 19.ab5 ab5 20.Rfa1 Rfd8 21.Ra8 h6 22.f4 e5 23.g3 ef4 24.gf4 h5 25.Qg3 Nb3 26.Rd8 Rd8 27.Bf6 Qf6 28.e5 Qe7 29.Rb1 Nd2 30.Rb2 h4 31.Qe3 Nc4 32.Bc4 bc4 33.Qf3 Qe6 34.Re2 Rd3 35.f5 Qh6 36.Qf2 Qg5 37.Kh2 c3 38.e6 fe6 39.b5 cb5 40.fe6 Rd2 41.Qf7 Kh7 42.Rd2 cd2 43.Qf3 Qg3 44.Qg3 hg3 45.Kg3 d1Q 46.Kf2 Qd4 47.Kf3 b4 48.e7 Qf6 49.Ke4 Qe7 50.Kd3 b3 51.Kc3 Qa3 52.h4 b2 53.Kc2 Qa2 54.Kc3 b1Q 55.h5 Qd5 56.h6 Qdd3 0–1. CM8_Fischer – CM8_Fortress, CM8000–Giant01–40Min, 2001.

5.c5 a5 6.a3 =+.

5.cd5 ed5 6.e3 (6.a3 a5 7.Nc3 ab4 8.ab4 Ra1 9.Qa1 Bb4 10.Qa4 Nc6=) 6...Nbd7 (6...Bb4 7.Qa4 Nc6 8.Ne5+–) 7.b5 Bb4 8.Be2 0–0 9.0–0 Nc5 10.Qc2 Qe7 11.a3 Ba5 12.Rc1 Nce4 (12...Bb6 13.d4 Nce4 14.Nc3=) 13.d3 Nd6 14.Qa4 Bb6 15.Nc3 h5 (15...Be6 16.Qb4=) 16.h3+= Bd7 17.Qf4 Rfe8 (17...Nb5 18.Nb5 Bb5 19.a4+–) 18.Na4+/– Bb5 (18...Nb5? 19.Nb6 ab6 20.a4+–) 19.Nb6 ab6 20.a4 Bc6 21.Ne5 Nd7 (21...b5 22.Nc6 bc6 23.Rc6 ba4 24.Ra4+/–) 22.Nc6+/– bc6 23.Rc6 Nc5 24.a5 (worse is 24.Bh5 Nd3 25.Qd4 Nb2 26.Qb2 Nc4+=) 24...Qd7 25.Qg5 d4 26.Qd5 de3 27.fe3 Qe7 (27...Re3? 28.Rd6 cd6 29.Qa8 Re8 30.Qf3+–) 28.e4 Ne6 29.Qh5 (29.Bh5 Nf4 30.Qd4 Nf5+/–; worse is 29.ab6 Nf4 30.Qc5 Ra1 31.Ba1 Ne2 32.Kh2 cb6 33.Qd6 Qg5 34.Rb6 h4+=) 29...ba5 30.Rc2 (worse is 30.Ra5 Nf4 31.Qg5 Qg5 32.Rg5 Ne2 33.Kh2 g6–/+) 30...c5 31.Bf3 (31.e5 Nb5 32.Bf3 Nbd4 33.Ba8 Nc2 34.Ra5 Qc7=) 31...Rab8 32.Ra5 Increasing the pressure on the isolated pawn on c5 32...c4 33.dc4 Rb2 34.Rb2 Nc4 35.Rba2 Na5 36.Ra5 Nd4 37.Kh1 Qb4 38.Ra1 Nf3 39.gf3 Qc3 40.Ra2 g6 41.Qg4 Rd8 42.Kh2 Qb3 43.Re2 Qd1 44.Qg2 Qd6 45.Qg3 Qf6 46.e5 Qa6 47.Qe1 Qe6 48.Kg3 Kg7 49.Qc3 Rc8 50.Qe3 Rb8 51.h4 Rb1 52.Re1 Rb2 53.Re2 Rb1 54.Re1 Rb2 55.Re2 Rb1= ½–½. rcm06 (2195) – marekt (1995), gameknot.com, 2014.

5.c5 b6

6.Qa4 c6 =.

6.Ne5 Bh5 7.Qa4 Nbd7 8.e3 bc5 9.Nc6 Qc8?? 10.Ba6+– Nb6 11.Qb5 Qd7 12.bc5 Nc8 13.Qb7 Bc5 14.Ne5 Qe7 15.Bb5 (15...c6 16.Bc6 Kd8 17.Qa8+–; 15.Qa8 0–0 16.Bc8 Qe8+–) 1–0. marekt – colinwebb, ChessWorld.net, 2004.

4.e3 a6

5.a3 b5 6.d4 (6.a4 ba4 7.c4 Nbd7+=) 6...e6= 7.Nbd2 (7.c3 Nbd7=) 7...Nbd7 (7...c6 8.h3 Bf3 9.Qf3=) 8.Bd3 Be7 9.0–0 0–0 10.c3 (10.e4 de4 11.Ne4 Nb6=) 10...Nb6 (10...e5 11.de5 Ne5 12.Be2=) 11.Qc2 Bh5 (11...Bf3 12.Nf3 Bd6 13.Ng5=) 12.Ne5 Bd6 (12...Qd6 13.e4=) 13.Ndf3 (13.e4 Nc4 14.Bc4 dc4=) 13...Nc4 (better is 13...Bf3 14.Nf3 Nc4=) 14.Nd2 (better is 14.a4!?=) 14...Ne5 (14...Be5 15.de5 Ne5 16.a4 Nd3 17.Qd3–/+) 15.de5 Be5 Black gets the initiative 16.f4 (16.a4 Bg6–/+) 16...Bd6 17.a4 (17.e4 c5 18.e5 c4–/+) 17...c6 (17...c5 18.ab5 c4 19.Bc4–+) 18.ab5 (18.Nb3 Qc7–/+) 18...ab5 19.Ra8 Qa8 20.Ra1 (20.Nb3 Qb7–/+) 20...Qb7 (20...Qb8 21.Nf1–+) 21.Nb3–/+ Qb6 22.Nd4 c5 (22...e5 23.fe5 Be5 24.e4–/+) 23.bc5 Qc5 (23...Bc5!? 24.Ba3 Ra8–/+) 24.Ba3 Qb6 25.Bd6 Qd6 26.Nb5 Qc5 27.Nd4 Bg6 28.Bg6 hg6 29.Ra4 Rc8–/+ 30.Kf2 Ne4 31.Kf3 g5 32.Nb3? Qb5–+ (32...Qb5 33.Re4 de4 34.Kf2 gf4 35.ef4 Qd3 36.Qd3 ed3–+; 32...Qc3?! 33.Qc3 Rc3 34.Nd4–+) 0–1. Gross,Wilhelm – Merten,Rainer, xiv/01, 1986.

5.a3 e6 6.h3 Bh5 7.g4 =.

5.Be2 e6 6.a3 Nbd7 (6...Bd6 7.0–0=) 7.c4 (7.0–0 Bd6=) 7...dc4+= 8.Bc4 c5 (8...b5 9.Be2+=) 9.b5 (9.h3 Bf5 10.g4 Bb1 11.Qb1 b5+=) 9...ab5 10.Bb5 Be7 (10...Bd6 11.Qb3+=) 11.0–0 (11.h3 Bf5=) 11...0–0+= 12.Be2 Qb6 13.Qc2 Rfc8 (13...e5 14.d3+=) 14.h3 (14.d3 Qd6+=) 14...Bf5 15.Qc4?? (better is 15.d3 c4 16.Bc3–/+) 15...Qb2–+ 16.Ra2 Qb6 17.Nc3 Qd8 (17...Qc7 18.a4–+) 18.g4 (18.Nh4 Nb6 19.Qb5 Be4–+) 18...Bg6 19.Kh1 (19.d3 Nb6 20.Qb5 Nfd5 21.Nd5 Nd5–+) 19...Nb6 20.Qb5 Nfd5 (20...c4 21.Qb2–+) 21.Nd5 (21.Kg1 Bf6 22.Rc1 Rc6–+) 21...Nd5 22.Qb7 (22.Qb3–+) 22...Rcb8 23.Qc6 Be4 (23...Rb6 24.Ne5 Rc6 25.Nc6–+) 24.d3 Nc3 (better is 24...Rb6 25.de4 Rc6 26.Rd1–+). Gross,Wilhelm – Merten,Rainer, xiii/23, 1988.

5.h3 Bf3 6.Qf3 Nbd7 =.

5.h3 Bh5 6.g4 Bg6 7.c4 (7.Ne5 Qd6=) 7...dc4+= 8.Bc4 b5 (8...Nc6 9.a3+=) 9.Bf1 (9.Be2 e6=) 9...e6+= 10.a3 c5 11.bc5 Bc5 12.d4 (12.g5 Nh5=) 12...Be7 (12...Bd6 13.Nbd2+=) 13.Bg2 Ra7 (13...0–0 14.Ne5 Be4 15.Be4 Ne4 16.Qf3=) 14.Nbd2 (14.Nc3 Qa5=) 14...Ne4 (14...Rc7 15.Rc1=) 15.Ne5 Nd2 16.Qd2 Nd7?? (better is 16...0–0=) 17.Nc6+– (17.Ng6?! hg6 18.d5 ed5 19.Bg7 Rh7+=) 17...Qb6 18.Na7 (18.Ne7?! Ke7 19.d5 f6+/–) 18...Qa7 19.Rc1 (19.d5 0–0+–) 19...0–0 (19...Nb6 20.Bc6 Kf8 21.Qc3+–) 20.0–0 (20.Qc3 Bd8+–) 20...h5 (20...Nb6 21.Rc6+–) 21.d5 (21.gh5 Bh5 22.Rc6 Nb8+–) 21...ed5 22.gh5 Be4 23.h6 Bf6 24.hg7 Bb2?? 25.gf8Q Nf8 26.Qb2 Qe7 27.f4 Bg2 28.Qg2 (28.Qg2 Kh7 29.Rc3+–) 1–0. Gross,Wilhelm – Merten,Rainer, xiv/03, 1986.

5.Be2 Nc6

6.a3 e6 7.0–0 Bd6 8.d4 0–0 9.Nbd2 Na7 (9...b5 10.c3=) 10.h3 Bf5 11.c4 Rc8 (11...dc4!? 12.Nc4 Be7=) 12.c5 Be7 13.a4 White prepares b5 13...Rb8 14.Ne5 Qc8 15.b5 ab5 (15...Nd7 16.g4 Ne5 17.gf5+=) 16.ab5+/– Ra8 17.Qb3 Nd7? (17...Ne4 18.Ne4 Be4 19.Ra3+–) 18.Ndf3 (better is 18.Nd7 Qd7 19.Ra4 Nb5 20.Bb5+–) 18...Ne5+/– 19.Ne5 f6 20.Nf3 Qe8? (20...b6 21.Ra6 bc5 22.Rfa1+/–) 21.Ra2 (better is 21.Ra4 Nb5 22.Ra8 Qa8 23.Qb5+–) 21...Qg6?? (better is 21...b6 22.Rfa1 Qb8+/–) 22.Nh4+– Qg5 (22...Bc2 23.Ng6 Bb3 24.Ne7 Kf7 25.Ra3+–) 23.Nf5 Qf5 24.Rfa1 g5 (24...Qe4+–) 25.Bd3 (25.Bd3 Qd3 26.Qd3+–) 1–0. cristero (2525) – grasimenezes (2275), net–chess.com, 2013.

6.a3 e6 7.0–0 Be7 8.c4 dc4 9.Bc4 0–0 10.d4 Re8 11.Nbd2 Bf8 12.h3 Bf5 13.Nb3 Ne7 14.Rc1 Ned5 15.Ne5 b6 16.Nd2 Nd7? (16...b5 17.Bb3=) 17.Nc6?? (better is 17.e4 Ne5 18.de5 Bh3 19.ed5 ed5 20.gh3 dc4 21.Nc4+–) 17...Qg5+= 18.Nf3 Bh3?? (better is 18...Qh6+=) 19.Ng5+– (19.Ng5 Bf5 20.e4+–) 1–0. cristero (2525) – grasimenezes (2275), net–chess.com, 2013.

4.e3 Nbd7

5.a3 c6 6.c4 e6 7.Nc3 Be7 8.d4 0–0 9.Be2 dc4 10.Bc4 Bd6 11.h3 Bh5 12.e4 e5 13.g4 Bg6 14.0–0 Re8 (< 14...Be4 15.Ne4 Ne4 16.de5+/–) 15.Re1 ed4 16.Qd4 (16.Nd4 Ne5 17.Bb3 c5=+) 16...Ne5–/+ 17.Ne5 Be5 (< 17...Re5 18.Rad1 Bc7 19.Qd8 Rd8 20.f4+/–) 18.Qe3 (18.Qd8 Rad8 19.Rad1 Ne4–/+) 18...Ne4!–+ 19.Rad1 (19.Qe4 Be4) 19...Nd6 20.f4 (20.Qc5 b6 21.Qc6 Rc8 22.Rd6 Bd6 23.Re8 Qe8 24.Qe8 Re8–+) 20...Qh4 (20...Nc4 21.Rd8 Rad8 22.Qf2–/+) 21.Rd6–/+ Bd6 22.Qe8 Re8 23.Re8 Bf8 24.Kg2 h5 25.f5?? (better is 25.Be2 f6 26.Rd8–/+) 25...hg4 26.fg6 gh3 27.Kh2 Qc4 28.Kh3 Qf1 29.Kg3 f6 30.Ne4 (30.b5 Qd3 31.Kf2 Qg6–+) 30...Qf5 31.Bd4 (31.Nf6 gf6 32.Rd8 Qg6 33.Kf3 Qc2–+) 0–1. juanpacio (1740) – pierre (2015), internet, 2006.

5.Nc3 Ne5 6.Na4 Bf3 7.gf3 Qd6 8.Nc5 0–0–0 9.f4 Nc4 10.Bd4 e6 (10...b6 11.Na6+=) 11.a4+= b6 (11...Qc6 12.Rg1+/–) 12.Na6+/– Kb7 (12...h5 13.Rg1 Qc6 14.b5+/–) 13.a5 Be7 (13...b5 14.Nc5 Kb8 15.a6+–) 14.Rg1+– Rhg8 (better is 14...g6+–) 15.ab6 ab6 16.d3 e5 17.Bc5 (17.dc4 ed4 18.Qd4 Ne4 19.cd5 Qd5 20.Qd5 Rd5+/–) 17...bc5 (17...Qd7 18.dc4 ef4 19.Bg2+–) 18.bc5 Qe6 (18...Qc6 19.dc4 Bc5 20.Qb1 (worse is 20.fe5 Ne4 21.Nc5 Qc5 22.Rb1 Ka8+–) 20...Bb6 21.c5 ef4 22.Bb5+– (22.cb6?! Qc3 23.Kd1 cb6+=)) 19.dc4 Ra8 20.cd5 Qd5 (20...Nd5 21.Bh3!! Nc3 22.Be6 Nd1 23.Bf7 Rgd8+–) 21.Rb1 Kc8 22.Bh3 Kd8 23.Bg2 Qd1 24.Rd1 Ke8 (24...Nd5 25.Bd5 Ra6 26.Bf7 Kc8 27.Bg8 ef4 28.Rg7+–) 25.Nc7 Kf8 26.Na8 ef4 (26...Bc5 27.fe5 Ne8 28.Rd8+–) 27.c6 Bb4 28.Ke2 (28.Ke2 Ke7 29.c7+–) 1–0. bollewillem (2265) – chpot (1945), gameknot.com, 2014.

5.Nc3 e6 6.b5 =.

5.c4 c6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.c4 Nbd7).

5.Be2 a6 6.c4 (6.a3 e6=) 6...e6 (6...dc4 7.Bc4 e5 8.Qb3+=) 7.c5= Be7 8.0–0 0–0 (8...a5 9.a3=) 9.d4 Ne4 (9...Qe8 10.Nc3=) 10.Nbd2 Nd2 11.Qd2 Nf6 12.h3 (12.Ne5 Be2 13.Qe2 Nd7=) 12...Bf5 13.Ne5 Ne4 14.Qd1 (14.Qe1 Ra7=) 14...f6 15.Nd3 Bg6 (15...a5 16.ba5 Ra5 17.Qe1=) 16.Nf4 Qd7 (16...Bf7 17.Bd3+=) 17.a4 White prepares b5 (17.Ng6 hg6 18.Qe1 Qa4+/–) 17...Bf7 (17...Bf5 18.g4 g5 19.Nd5 (19.gf5?! gf4 20.ef4 Kh8+=) 19...Qd5 20.gf5 ef5 21.Kh2+–) 18.Bd3 (18.Qe1 Be8+=) 18...g5 (18...f5 19.Qe1+=) 19.Ne2+/– f5 20.f3 Nf6 Black prepares the advance g4 21.b5 ab5 22.ab5 Bg6 (22...Ra1 23.Qa1 g4 24.hg4 fg4 25.Nf4+/–) 23.Qc2+/– White prepares the advance c6 23...Rfc8 24.f4 (24.Ba3 Bf8+/–) 24...g4+= 25.hg4 (25.Rfb1 gh3 26.gh3 Ne4+=) 25...Ng4= 26.c6 (better is 26.Qd2=) 26...Qd6?? (26...bc6!? 27.bc6 Qd8+=) 27.Ra8 (better is 27.cb7 Rab8 28.bc8R Rc8 29.Rf3+–) 27...Ra8+= 28.cb7 Rb8 ½–½. Gross,Wilhelm – Merten,Rainer, xiii/25, 1988.

5.Be2 h6 6.d4 e6 7.b5 c6 8.a4 Bd6 9.Nbd2 Ne4 10.Ne4 de4 11.Nd2 Bf5 12.g4 Bh7 13.c4 Bb4 14.Qb3 Bd2 15.Kd2 Nc5 16.Qc3 Nd3 17.Bd3 ed3 18.Raf1 Rg8 19.h4 cb5 20.ab5 a6 21.Qb4 Rc8 22.Ra1 Qf6 23.f4 Be4 24.g5 hg5 25.d5?? Rc4 26.ba6?? Rc2 27.Ke1 Qb2 28.Qb2 Rb2 29.a7 Kd7 30.Rg1 Ra8 31.Kf1 Bd5 32.Ke1 Kc7 33.hg5 Ra2 34.Ra2 Ba2 35.Kd2 Ra7 36.Ra1 Ra6 37.Rh1 e5 38.Kd3 ef4 39.ef4 Be6 40.Ke4 Rd6 41.Ke3 g6 42.Rc1 Rc6 (43.Rc6 Kc6–+) 0–1. Tilp,Andreas – Salzmann,P, corr DDR, 1988.

5.h3 Bf5 6.c4 dc4 7.Bc4 Nb6 8.Bb3 Bd3 9.Ne5= e6 10.Nc3 Bb4–/+ 11.Ba4 Ke7 12.Qb3 a5 13.Ba3 c5–/+ 14.Bc6 Ba6 15.Bb4 ab4–+ 16.Na4 Na4 17.Ba4 0–1. Gross,Wilhelm – Merten,Rainer, corr, 1986.

5.h3 Bh5 6.Be2 e6= 7.a3 c5! 8.bc5 Bc5 9.d3?! (9.Nc3) 9...Qb6=+ 10.Qc1 Rc8 11.Nc3 (11.Nbd2 0–0 12.0–0 Be3!; 11.g4!?) 11...Bf3 12.Bf3 d4?! (12...0–0) 13.Ne4 (13.Nd1! Ne5 14.Be2=) 13...Ne4 (13...de3! 14.Nf6 (14.0–0 Ne4–+) 14...Nf6–+) 14.Be4 de3 (14...0–0=+) 15.Bg7! ef2 (15...Rg8=+) 16.Ke2 Rg8 17.Rb1!? (17.Qh6? Bd4! 18.Bd4 Rc2 19.Kd1 Qb3!) 17...Qa5?! (17...Qd6) 18.Qh6= Bb6? (18...Bf8) 19.c4! Qc5+= 20.Rb6!? (20.Qh7!?) 20...Nb6 21.Qh7 Rg7 (21...Ke7!? 22.Bb7 unclear) 22.Qg7 Rc7+= (22...Nc4 23.dc4 Qc4 24.Kf2!+=) 23.Qf6! Na4?! (23...Nd7) 24.Rb1 b6 25.Rb4 b5? (25...Qa5) 26.Rb5! Qe7 27.Rb8 Kd7 28.Qd4 Qd6 29.Rd8 1–0. Gross – Merten, xix/16 1990 (Gross).

5.a3 e5=+

6.Be2 Bd6 7.0–0 0–0 8.h3 Be6 9.Nc3 c6 10.Ng5 Bf5 11.Na4 Qe7 12.c4 dc4 13.Bc4 b5 14.Bf7 Rf7 15.Nf7 Qf7 16.Nc3 Bd3 17.Re1 e4 18.f3 Bg3 19.fe4 Be1 20.Qe1 Qb3 21.Bc1 Ne5 22.Qg3 Re8 23.Kh2 Ne4 24.Ne4 Be4 25.Qf4 Nd3 26.Qd6 Rf8 27.Qd4 Qe6 28.Bb2 Nb2 29.Qb2 Rf2 30.Rg1 Qd6 31.Kh1 Qg3 (32.Qg7 Kg7 33.d4 Qh3#) 0–1. McCarthy,Mike – Alvim,Antonio Carlos (2165), internet, 2001.

6.Be2 Bd6 7.0–0 0–0 8.h3 Bf3 9.Bf3 Nb6 10.d3 Na4 11.Bc1 e4 12.de4 de4 13.Be2 Qe7 14.c4?? Qe5–+ (15.f4 Qa1–+) 0–1. kostovist – pierre (1955), internet, 2006.

6.h3 Bf3

7.gf3 a5 8.b5 =+.

7.gf3 Bd6 8.c4 dc4 9.Bc4 0–0 10.Rg1 =+.

7.gf3 Bd6 8.c4 dc4 9.Bc4 Qe7 10.d3 0–0 11.Rg1 c6 12.Nc3 b5 13.Bb3 a5 14.ba5 Ra5 15.a4 Bb4 16.Kf1 Bc3–/+ 17.Bc3 b4 18.Bd2 Rb8 19.Qb1 Kh8 20.Qb2 Nc5 21.Bc2 Qe6 22.Kg2 Qd6 23.Qb1 Nd3 24.Bd3 Rd5 25.Bh7 Rd2 26.Bf5 Nd5 27.Qe4 Qf6 28.Rae1 g6 29.Bd7 Kh7 30.Rc1 Nc3 31.Qc6 Qh4 32.Rgf1 Rd8 33.Bg4 Nd5 34.Rce1 f5 35.Qe6 Qf6 36.Qf6 Nf6 37.Rb1 Nd5 38.Kg3 fg4 39.hg4 Rb8 40.Rfc1 b3 41.a5 Rb5 42.Rc6 Ra2 43.a6 Kg7 44.e4 Nf4 45.g5 b2 46.Rc7 Kf8 47.a7 Rba5 48.Rd7 Ra7 49.Rb2 Rd7 50.Ra2 Ke7 51.Ra5 Ke6 52.Ra6 Rd6 53.Ra1 Rc6 54.Kg4 Rc2 55.Ra6 Kd7 56.Ra7 Kc6 57.Ra5 Rc5 58.Ra1 Kb5 59.Kg3 Kc4 60.Ra4 Kd3 61.Ra3 Kd4 62.Ra8 Rc1 63.Ra4 Kd3 64.Ra3 Ke2 65.Ra5 Rg1 66.Kh4 Kf2 (67.Ra2 Ne2–+) 0–1. Kopp,Jean_Raymond – Pott,Brian (1750), internet, 2004.

7.gf3 Bd6 8.c4 dc4 9.Rg1 0–0 10.Qc2 Nb6 11.Qf5 Re8 12.a4 a5 13.b5 h6 14.f4=+ Qe7 15.h4 Rab8 16.Na3 c3=+ 17.Bc3 Ba3 18.fe5 Nfd7 19.e6 fe6 20.Qg6 e5 21.Ra3 Kh8 22.Ba5 Nf8 23.Qg4 Nd5 24.Bc4 c6 25.e4 Nf4 26.Rag3 N8g6 27.Bc3 Ra8 28.a5 Nh4 29.bc6 bc6 30.Bb4 Qf6 31.Bc3 Reb8 32.Ba2+= Rb7 33.d3 Rf8 34.a6 Rb6= 35.Kd2 Ra6=+ 36.Bc4 Ra7 37.Rh1 g5 38.Rh2 h5 39.Qd1 g4 40.Rh4 Qh4 41.Be5 Kh7 42.Bd6 Rf6 43.Be5=+ Nh3 44.Bf6 Qf6–/+ 45.Qe2 Qe5 46.Kc2? Rb7–+ 47.d4 Qd4 48.Rb3 Rb3 49.Kb3 Qb6 50.Kc3 Nf2 51.e5 h4 52.e6+= Qa5 53.Kb3 Qh5? 54.e7+– Qe8 55.Qe6 h3 56.Qf5 Kh6 57.Qf6 Qg6 58.Qg6 (58...Kg6 59.e8Q Kf5 60.Qf8 Kg6 61.Qf7 Kg5 62.Qf2+–) 1–0. Eula (2550) – Pierred (2190), Rated game, 5m + 0s, 2005.

7.Qf3 Bd6 =+.

5.a3 e6

6.c4 a5 7.cd5 ed5 8.b5 Bd6 9.Be2 0–0 10.0–0 Nc5 11.a4 Qe7 12.d3 Ne6 13.Nbd2 Rfe8 14.Re1 Bb4 15.Qc1 c6 16.bc6 Rac8 17.Ne5 Be2 18.Re2 Nc5 (18...bc6 19.Qc2= (19.Nc6? Qd7 20.Bf6 Rc6–+)) 19.d4+= Ncd7 20.Ndf3 Nb8 ½–½. Lebel,Patrick (2185) – Marciano,David (2455), Saint Affrique op, 1995.

6.c4 Be7 7.d4 0–0 8.Nbd2 Ne4 9.Qb3 Nd2 10.Nd2 dc4 11.Bc4 Nb6 12.Bd3 Bd6 13.0–0 Qh4 14.g3 Qe7 15.Be4 c6 16.Bg2 h5 17.e4 e5 18.Rae1 Rad8 19.de5 Be5 20.Bc1 h4 21.Nf3 h3 22.Bh1 (worse is 22.Ne5 hg2 (22...Qe5?! 23.Bh1=) 23.Ng4 gf1R 24.Kf1 Rfe8–/+) 22...Be6 23.Qc2 Bc4 24.Ne5 Bf1 25.Nc6 bc6 26.Kf1 Qe6 27.e5 Nd5 28.Be4 g6 29.f4 Ne7 30.Be3 Rd7 31.Kg1 Rfd8 32.Rc1 Nf5 33.Bf5 gf5 34.Qc6 (better is 34.a4=) 34...Rd1–+ 35.Kf2 Rc1 36.Qc1 Qa2 37.Ke1 0–1. De Poi,Paolo (2220) – Nedimovic,Ljubisa (2200), Trieste op–A, 2004. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nd7 4.a3 Ngf6 5.e3 e6)

5.c4 dc4

6.Bc4 e6

7.a3 a5 8.b5 Bd6 9.h3 Bf5 10.d3 Nb6 =.

7.a3 Nb6 8.Be2 Bd6 9.0–0 c6 10.d3 a5 =.

7.a3 Bd6 8.Nc3 0–0 9.h3 Bh5 10.Be2 c6 11.0–0 Qe7 12.Qc2 Rfd8 13.e4 Ne5 14.g4 Nf3–/+ 15.Bf3 Bg6 16.Ne2 Nd5 17.d3=+ Nf4 18.e5? Ne2 19.Qe2=+ Bc7 20.d4 Bb6 21.Rad1 Rd7 22.Rd2 Rad8 23.Rfd1 Qg5 24.a4 a6 25.Kg2 h6 26.Bc3 Qe7 27.Qe3 Ra8 28.Be2 Rdd8 29.f4 a5 30.b5 Qd7 31.Rb2= Rac8 32.Bf3 cb5 33.Rb5 Qc7 34.Bb2 Qc2 35.Kg3 Bc7 36.Rc1 Qa4 37.Rbc5 Qb4 38.Qc3 Qc3 39.R1c3 Rd7 40.Ba3 b5? 41.Rb5+– Rcd8 42.Rb7 1–0. Dzieniszewski,Andrzej – Dejkalo, Poland, 1984.

7.a3 Bd6 8.Nc3 a5 9.Nb5 Be7 10.ba5 Ra5 =+.

7.a3 Bd6 8.h3 Bh5 9.0–0 0–0 10.d4 a5 =.

7.a3 Bd6 8.h3 Bh5 9.Be2 Qe7 10.d3 c6 11.Nbd2 Rd8 12.Nc4 Bb8 13.Na5 Nb6 14.Qc2 0–0 15.g4 Bg6 16.Nh4 Nfd5 17.Ng2 c5 (better is 17...f6!?+=) 18.bc5+= Rc8 19.Rc1 f5 20.Bf3 fg4 21.Be4 g3 22.f4 Be4 23.de4 Ne3 24.Ne3 Bf4 25.Qb3? (25.Bd4!? g2 26.Ng2 (worse is 26.Qg2 e5 27.Nf5 Rf5–+) 26...Bc1 27.Qc1=) 25...g2 (25...Rc5 26.Nb7 g2 27.Rg1 Be3 28.Qe3 Rc1 29.Bc1–+) 26.Ng2? (26.Rg1 Qh4 27.Ke2 Qh5 28.Ng4 Bc1 29.Qe6 Kh8 30.Qe5–+) 26...Bc1–+ 27.Bc1 (27.cb6 Qd6 28.Bc1 Rc1 29.Ke2 Qd4–+) 27...Qc5 (27...Rc5?! 28.Bd2 Qf6 29.Nf4 Qa1 30.Qd1 Qa3 31.Nb3–+) 28.Qe6 (28.Bd2 Qf2 29.Kd1–+) 28...Kh8 29.Nb3 (29.Bf4 Rf4 30.Qc8 Qc8 31.Nf4 Qc1 32.Kf2 Qf4 33.Kg1 Qe4 34.Kh2 Qf4 35.Kg2 Qd2 36.Kg3 Qa5 37.Rf1 Qa3 38.Kg2–+) 29...Qf2 30.Kd1 Qg2 0–1. Broca,Alexandre (2140) – Sintes,Marc (2095), FRA–chT2 South, 2006.

7.b5 Nb6 8.Be2 Bb4 9.h3 Bf5 10.0–0 0–0 11.d3 a6 12.Qb3 =.

7.b5 Nb6 8.Be2 Bd6 9.0–0 0–0 10.Nc3 Bf3 11.Bf3 Nc4 12.Bc1 =.

7.b5 Be7 8.0–0 0–0 9.d4 Rc8 10.Nbd2 c5 11.Be2 Qb6 12.Rc1 =.

7.b5 Be7 8.0–0 Nb6 9.Be2 0–0 10.Nc3 Qd6 11.a4 Bf3 12.Bf3 =.

7.b5 Be7 8.0–0 c5 9.bc6 bc6 10.d3 Rb8 11.Bd4 e5 12.Bc3 =.

7.b5 Be7 8.0–0 Bd6 9.d4 0–0 10.Bd3 c5 11.bc6 bc6 12.h3 =.

7.h3 Bf3 8.Qf3 Bb4 9.Qb7 Rb8 10.Qa6 0–0=+ 11.0–0 Nc5 12.Qc6 =+.

7.h3 Bf5 8.a3 a5 9.b5 Be7 10.0–0 0–0 11.Bf6 Nf6 12.d3 =.

7.h3 Bf5 8.a3 Nb6 9.Be2 a5 10.b5 Bd6 11.d3 Bg6 12.e4 =.

7.h3 Bf5 8.a3 Bd6 9.d3 Nb6 10.Nbd2 Bg6 11.Nh4 c6 12.Ng6 =.

7.b5 Bb4

8.0–0 0–0 9.Be2 Bd6 10.Nc3 Nb6 11.Qc2 Nbd5 12.Nd5 =.

8.0–0 Nb6 9.Be2 0–0 10.Nc3 Bd6 11.Qc2 Nbd5 12.Nd5 =.

8.0–0 Bd6 9.h3 Bh5 10.d4 Nb6 11.Bd3 Bg6 12.a4 =.

8.a3 Bd6 9.d4 0–0 10.0–0 c6 11.Nbd2 Rc8 12.bc6 =.

8.a4 0–0 9.0–0 Bd6 10.h3 Bh5 11.d3 Ne5 12.Nbd2 =.

8.a4 a5 9.0–0 0–0 10.Be2 Bd6 11.Nc3 e5 12.Qc2 =.

8.a4 Nb6 9.Be2 Nbd5 10.Nc3 0–0 11.0–0 c5 12.bc6 =.

8.a4 Rc8 9.h3 Bh5 10.0–0 0–0 11.d3 Nb6 12.a5 =.

8.a4 Bd6 9.0–0 0–0 10.h3 Bh5 11.d3 Nb6 12.Nbd2 =.

8.Be2 0–0 9.0–0 Bd6 10.d4 Nb6 11.Ba3 Nbd5 12.Bd3 =.

8.Be2 a5 9.0–0 0–0 10.d3 Re8 11.h3 Bh5 12.Nbd2 =.

8.Be2 a6 9.ba6 ba6 10.Qa4 a5 11.a3 Be7 12.Bf6 =.

8.Be2 Nb6 9.0–0 0–0 10.Nc3 Bd6 11.Qc2 Nbd5 12.Nd5 =.

8.Be2 Bd6 9.0–0 0–0 10.d4 Nb6 11.Ba3 Nbd5 12.Bd6 =.

8.h3 Nb6 9.Be2 Bf5 10.0–0 0–0 11.d3 a6 12.Qb3 =.

8.h3 Bf5 9.Nd4 Be4 10.0–0 Nb6 11.Be2 e5 12.Nf3 =.

8.h3 Bh5 9.Be2 Bd6 10.d4 0–0 11.Nbd2 Nd5 12.0–0 =.

7.b5 Bd6

8.0–0 0–0 9.h3 Bf5 10.Nc3 Nb6 11.Be2 e5 12.a4 =.

8.0–0 Nb6 9.Be2 0–0 10.d4 Rc8 11.Ne5 Be2 12.Qe2 =.

8.0–0 c5 9.Be2 0–0 10.Na3 Qc7 11.h3 Bf3 12.Bf3 =.

8.0–0 Rc8 9.d3 0–0 10.Nbd2 Nb6 11.Qb3 Re8 12.Rac1 =.

8.d3 Nb6 9.0–0 a6 10.Nbd2 Nc4 11.dc4 0–0 12.Qc2 =.

8.d4 0–0 9.Bd3 e5 10.Nbd2 Bf3 11.Qf3 ed4 12.Bd4 =.

8.d4 Nb6 9.Bd3 0–0 10.0–0 Rc8 11.e4 Be7 12.a4 =.

8.d4 Rb8 9.0–0 0–0 10.Nbd2 c6 11.Rc1 cb5 12.Bb5 =.

8.d4 Rc8 9.Nbd2 c6 10.0–0 0–0 11.bc6 Rc6 12.Bd3 =.

8.d4 Qe7 9.0–0 0–0 10.Nbd2 Rfc8 11.h3 Bf5 12.Nh4 =.

8.Be2 0–0 9.h3 Bh5 10.d4 a6 11.ba6 ba6 12.0–0 =.

8.Be2 e5 9.d4 e4 10.Nfd2 Be2 11.Qe2 0–0 12.f3 =.

8.h3 Nb6 9.hg4 Nc4 10.Bc3 Bf8 11.Qc2 Nd6 12.Bf6 =.

8.h3 Bf5 9.Nc3 0–0 10.0–0 Nb6 11.Be2 e5 12.a4 =.

8.h3 Bh5 9.d4 0–0 10.0–0 Nb6 11.Bd3 Bg6 12.Bg6 =.

5.c4 e5

6.Qa4 c6 7.Ne5= Ne5 8.Be5 Bd6 (8...Nd7 9.Bd4=) 9.Bd6+= Qd6 10.c5 Qe7 (10...Qe6 11.d4+=) 11.d4+/– Ne4 12.Bd3 0–0 13.Qc2 f5 14.Nd2 Nd2 15.Kd2 (15.Qd2 f4+=) 15...Qe6 16.Rae1 a5 (16...b5 17.a4 ba4 18.Qa4+/–) 17.ba5 Ra5 18.h3 Bh5 19.Rb1 Ra7 20.Rb4 (20.Rhe1 Bg6+/–) 20...Bg6 (20...f4 21.ef4 (< 21.Bh7 Kh8 22.Ke1 g6=+) 21...Rf4 22.f3+/–) 21.g3 (21.Kd1!?+/–) 21...f4+= 22.gf4 (22.Bg6 fe3 23.Kd1 hg6=) 22...Bd3= 23.Qd3 Ra2 24.Kc3 (24.Kd1 Rf2 25.Rb7 Ra2=+) 24...Rf2 (24...Rfa8 25.Rhb1=+) 25.Rb7 Rf3 (25...Ra8 26.Rhb1=+) 26.Rg1 g6 27.Kd2 R8f4 28.Rgb1 (28.ef4 Rd3) 28…Rh3 (29.Rb8 Kg7 30.R1b7 Kh6–+; 28...Rf2!? 29.Kc3 R4f3 30.Rb8 Kg7 31.R8b7 Kh6–+) 0–1. Registration (2245) – TombRaider (2485), ICC, 2003.

6.Qb3 e4 7.Ne5 Ne5 8.Be5 Bd6 9.Bd6 Qd6 10.d4 ed3 11.Bd3 d4 12.0–0 de3 =+.

6.Qb3 e4 7.h3 dc4 8.Bc4 Bh5 9.Ne5 Ne5 10.Be5 Bd6 =.

6.Qb3 e4 7.h3 Bf3 8.gf3 ef3 9.cd5 Qe7 10.a3 0–0–0 11.d3 Ne5 12.Nd2 Nd5 =.

6.Qb3 Qe7 7.cd5 Bf3 8.gf3 Qb4 9.Bc4 a6 10.Bc3 Qb3 =+.

6.cd5 e4 7.h3 ef3 8.hg4 Nd5 9.a3 fg2 10.Bg2 +=.

6.cd5 e4 7.h3 Bh5 8.g4 Ng4 9.hg4 Bg4 10.Be2 ef3 =.

6.cd5 e4 7.h3 Bh5 8.g4 Ng4 9.hg4 Bg4 10.Be2 Bf3 11.Bf3 ef3 12.a3 Nf6 13.Qf3 Qd5 14.Qd5 Nd5 15.Nc3 Nc3 16.Bc3 f6 17.Ke2 Bd6 18.Rag1 Kf7 19.f3 h5 20.f4 g6 21.Kf3 Rae8 22.Rg2 c5 23.b5 c4 24.a4 b6 25.Rhg1 Rh6 26.f5 g5 27.Rc1 g4 28.Kf2 g3 29.Kf3 (better is 29.Rg3 Bg3 30.Kg3–+) 29...h4 30.Rh1 Rh5 31.Bd4 (31.e4 h3 32.Rg3 Bg3 33.Kg3 Re4 34.Rh3 Rh3 35.Kh3 Rf4–+) 31...h3 32.Rg3 (32.e4 Rh4 (32...hg2?! 33.Rh5 Kg7 34.Be3+=) 33.Rg3 Ree4–+) 32...Rf5 33.Kg4 Rg5 (33...Rg5 34.Kf3 Rg3 35.Ke2 Reg8–+) 0–1. ferminkatcho (1775) – numlocck (1840), 2012.

6.Be2 e4 7.Ne5 Be2 8.Qe2 Ne5 9.Be5 Bb4 10.Nc3 Bc3 –/+.

6.Be2 e4 7.Ng5 Be2 8.Qe2–/+ h6 9.Nh3 Bb4 10.cd5 0–0 =+.

6.Be2 e4 7.Nh4 Be6 8.Qb3 g5 9.cd5 Bd5 10.Bf6 Nf6 –+.

6.Be2 Bf3 7.gf3 Bb4 8.Qb3 a5 9.cd5 0–0 10.a3 Bd6 =+.

6.Be2 Bf3 7.Bf3=+ Bb4!? 8.cd5 e4=+ 9.Be2 Nd5 10.a3 Bd6 =+.

6.Be2 Bf3 7.Bf3=+ dc4 8.Bb7= Rb8 9.Bc6 Bb4 10.Be5 0–0 11.Bd4 Bc5 12.Bc3 Rb6 13.Qa4+= Nb8 14.Bb5 Qd3 15.Qc4 Qc4 16.Bc4 Nbd7 17.0–0 Ne4 18.f3 Nc3 19.Nc3 c6 20.Bb3 Bb4 21.Ne4 Kh8 22.h3 f5+= 23.Nc3 Nc5 24.Rab1 Rfb8 25.Rfc1 Nd3 26.Rc2+/– c5 27.Nd5 Rd6 28.Bc4 Ne5 29.e4 Rf8 30.a3. Gross,Wilhelm – Merten,Rainer, xiii/05, 1986.

6.Be2 Bf3 7.Bf3=+ e4 8.Be2 dc4 9.Bc4 Bd6 10.0–0 0–0 =+.

6.h3 Bf3 7.gf3 Bb4 8.Qb3 Bd6 9.cd5 0–0 10.d4 c6 =+.

6.h3 Bf3 7.gf3 dc4 8.Bc4 Bd6 9.Qb3 0–0 10.Rg1 c6 11.Nc3 b5 12.Bd3 a5 13.Qc2 (13.a3–/+) 13...Bb4 (13...ab4 14.Ne4 Qc7–/+) 14.Ne4= Qe7 15.f4 Bd6 (15...Kh8!?=) 16.Qc6+= Ne4 17.Qe4 g6 18.Bb5 Rab8 19.a4 Nc5 20.Qc2 ef4 21.Bc4 (better is 21.Qc3!? f6 22.Qa5+=) 21...Rb2 22.Qb2 fe3 23.de3 Be5 24.Qb1 Bc3 25.Ke2 Ba1 26.Qa1 Qh4 27.Rg4 Qh3 28.Qd4 Qh5 (28...Na4?! 29.Bf7 Rf7 30.Qd8 Kg7 31.Qd4 Rf6 32.Qd7 Kf8 33.Qd8 Kf7 34.Qd7 Kf8 35.Qd8 Kg7 36.Qd7 Kf8=) 29.Ke1 Qh1 30.Ke2 Ne6 (worse is 30...Na4 31.Bb3 Rb8 32.Qc4+/–) 31.Qe4 Qe4 32.Re4 Nc5 33.Re7 Na4 34.Ra7 Nc5 35.Ra5 Ne6 36.Ra7 h5 37.Kf3 Rc8 38.Be6 fe6 39.Kf4 Rc5 40.e4 g5 41.Kg3 Rc3 42.Kg2 g4 43.Re7 h4 44.Re6 Kf7 45.Rh6 h3 46.Kg1 Rc4 47.f3 Rc1 48.Kf2 Rc2 49.Kg3 gf3 50.Kf3 h2 ½–½. Raeva,Elitsa (2290) – Nikolova,Adriana (2290), Panagyurishte BUL, 2012.

6.h3 Bf3 7.Qf3 Bb4 8.cd5 e4 9.Qf5 g6 10.Qf4 0–0 =+.

6.h3 Bf3 7.Qf3 e4 8.Qf5 g6 9.Bf6 Nf6 10.Qe5 Qe7 =+.

6.Qa4 Bf3

7.gf3 a5 8.ba5 c6 9.Qb3 Bc5 10.cd5 cd5 11.Bb5 d4 12.Na3 0–0 13.Nc4 Qe7 14.Kf1 Rfd8 15.Re1 Qe6 16.Rg1 Qh3 17.Rg2 Qf3 18.ed4+= Qb3 19.ab3 Bd4 20.Bd4 ed4 21.Bd7 Rd7 22.Nb6+– Ra5 23.Nd7 Nd7 24.Rg4 Rd5 25.Re8 Nf8 26.Rge4 g6 27.Rb8 b5?? 28.Ree8 (28...Kg7 29.Rf8+–) 1–0. Trokenheim,Marek (1800) – Cridland,Graham, FICGS, 2008.

7.gf3 a6 8.c5 c6 9.d4 ed4 10.Bd4 a5 =+.

7.gf3 c6 8.cd5 Nd5 9.b5 Nc5 10.Qc4 Nb4 =+.

7.gf3 c6 8.cd5 Nd5 9.b5 Nc5 10.Qc4 Qd6 11.d4 ed4 12.Bd4 Ne6 =+.

7.gf3 Qe7 8.a3 c6 9.cd5 Nd5 10.d4 Qh4 =.

6.Qb3 Bf3

7.gf3 a5 8.ba5 Nc5 9.Qb5 c6 10.Qb6 Qb6 11.ab6 dc4 12.Be5 Nfd7 =+.

7.gf3 a5 8.cd5 ab4 9.d4 ed4 10.Bd4 Bc5 =+.

7.gf3 dc4 8.Bc4 Qe7 9.a3 Nb6 10.Be2 Rd8 =.

7.gf3 Qe7 8.a3 dc4 9.Bc4 Nb6 10.Be2 Rd8 =.

7.gf3 c6

8.cd5 cd5 9.Nc3 Qb6 10.Bb5 (10.Nd5 Nd5 11.Qd5 f6+/–) 10...Rd8 (better is 10...Qd6=) 11.Nd5+/– Nd5 12.Qd5 a6 (12...f6!? 13.Bc4 Rc8+/–) 13.Qe5+– Qe6 14.Bd7 Rd7 15.Qe6 fe6 16.Bc3 (16.a3 Bd6+–) 16...Kf7 17.Rg1 Rg8 18.Ke2 g6 19.Rac1 Be7 20.a3 Rc8 21.Be5 Rdd8 (21...Ra8 22.d4+–) 22.d4 a5 (22...b5 23.Kd3+–) 23.Bc7 ab4 (23...Rd7 24.Ba5 Ra8 25.Rg3+–) 24.Bd8 ba3 (24...Rd8 25.ab4 Rd7+–) 25.Be7 (25.Be7 Rc1 26.Rc1 Ke7 27.Rc7 Kf6 28.Rb7+–) 1–0. Cortijo Dominguez,D – Gutierrez Perez,LA, Valladolid CC Social Velasco, 1994. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Bb2 Nbd7 5.c4 e5 6.Qb3 Bf3)

8.cd5 cd5 9.Nc3 Nb8 10.Qa4 Nc6 11.b5 =.

8.cd5 cd5 9.Nc3 d4 10.Bc4 Qe7 (10...dc3?? 11.Bf7 Ke7 12.Qe6) 11.Nd5 Nd5 12.Bd5 Nb6 13.Be4 0–0–0 14.Rc1 (14.a4 Kb8 15.a5 Nc8+/–) 14...Kb8+= 15.b5 (15.h4 Qd7+=) 15...g6= 16.a4 f5 17.Bb1 (better is 17.Bc2!?=) 17...Qb4–/+ 18.Qb4 Bb4 19.ed4 ed4 20.Kd1 Na4 21.Ba1 Nb6 22.Re1 Rd7 23.Ba2 Rhd8 24.Re6 Ba3 25.Rb1 Bf8 26.Bb3 Bg7 27.Rc1 Nd5 28.Rc4 (better is 28.Bd5!? Rd5 29.Re7–/+) 28...Nf4–+ 29.Re1 Nd3 30.Re2 b6 31.Rc6 Nc5 32.Bc4? (32.Ba2–+) 32...Kb7 (better is 32...d3 33.Re5 Kb7–+) 33.Bb2?? (better is 33.d3–/+) 33...a6 (33...a6 34.d3 Bf8–/+) 0–1. Kremenietsky,AnM (2315) – Zablotsky,S (2525), TCh–RUS Blitz, 2015. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Bb2 Nbd7 5.c4 e5 6.Qb3 Bf3)

8.Rg1 Qe7 9.a3 Rd8 10.cd5 Nd5 =.

8.Rg1 Qe7 9.a3 g6 10.Nc3 Bg7 (better is 10...dc4!? 11.Bc4 b5=) 11.cd5+/– cd5 12.Nd5 Nd5 13.Qd5 0–0–0 14.Qa5 Kb8 15.0–0–0 (15.Rc1!? Rc8 16.Bc3+=) 15...Nb6 16.Kb1 Rc8 (16...Rd5 17.b5+=) 17.Bh3 (17.f4 f6+=) 17...f5 (17...Nc4 18.Qa4 Nb2 19.Kb2 e4 20.Ka2–/+) 18.Rc1 Nc4 19.Rc4 Rc4 20.Bf1? (better is 20.Bf5 Rc7 21.Be4+=) 20...Rc7–+ 21.Be2 Rhc8 22.h4 (22.Rd1 Qh4 23.Be5 Be5 24.Qe5 Qf2–+) 22...e4 23.fe4? (23.Bg7 Qg7 24.Qa4–+) 23...Bb2 24.Kb2 Qe4 25.d3 (25.Rd1 f4 26.f3 Rc2 27.Kb3 Qe6 28.Ka4–+) 25...Rc2 26.Kb1 Qe6 (26...Qe6 27.Qc7 R8c7 28.Rg6 Qa2) 0–1. ferminkatcho (1735) – a12b12 (1740), 2012.

5.c4 e6

6.a3 a5 7.b5 Bd6 8.d4 0–0 9.Nbd2 Ne4 10.Be2 Nd2 11.Nd2 Be2 12.Qe2 Qg5 13.0–0 Rfe8 14.Qf3 c5 15.dc5 Nc5 16.cd5 ed5 17.Bd4 a4 18.g3 Ne4 19.Rfd1 Rad8 20.h4 Qg6 21.Nf1 Rc8 22.Bb6?? (better is 22.Ra2+=) 22...Rc2–+ 23.Rd5 (23.g4 Rf2 24.Qh3–+) 23...Rf2 (23...Nf2?! 24.h5 Qe6 25.Rd2 Nh3 26.Kh1–+) 24.Qf2 Nf2 25.Kf2 Bg3! 26.Ng3 Qf6 (worse is 26...Qb6 27.Re1–+) 27.Kg2 Qa1 28.Bd4 (28.e4–+) 28...Qa2 (28...Qa2 29.Kh3 Qd5–+) 0–1. barborski – atedo (1755), kurnik, 2013.

6.a3 a5 7.c5 e5 8.Be2 ab4 9.ab4 Ra1 10.Ba1 Qa8 11.Nc3 c6 12.0–0 Be7 13.Qc2 0–0 14.Nh4 g6 15.h3 Be2 16.Ne2 Qa6 17.Ng3 Ra8 18.Nhf5 gf5–/+ 19.Qf5 Kf8 20.f4 ef4 21.Qf4 Ke8 22.Nf5 Qc4?? 23.Bf6+/– Nf6?? 24.Qe5+– Qf1 25.Kf1 Ng8 26.Ne7 Ne7 27.Qh8 (27...Kd7 28.Qa8+–) 1–0. Kring,S – Carlson,Ma, Stockholm, 1980.

6.a3 c5 7.cd5 ed5 8.bc5 Bc5 9.Be2 Qb6 10.Qc1 0–0 11.d4 Bd6 12.0–0 Rfc8 13.Bc3 Ne4 14.Qe1 a5 15.Ra2 Qc7 16.Ba1 b6 17.h3 Bf3 18.Bf3 Ndf6 19.Be4 Ne4 20.Nd2 f5 21.Ne4 fe4 22.Qe2 a4 23.f3 ef3 24.Qf3 Qc4 25.Qf7 Kh8 26.Raf2 Ba3 (The passed pawn on a4 quickly leads to threats) 27.Bb2 Bb4 28.e4 a3–+ 29.Bc1? Qd4 30.Kh2 de4 31.Bg5 e3 32.Bf6 gf6 33.Rf6 e2 (34.Qa2 Qe5 35.R1f4 e1Q–+) 0–1. Winfridsson,Haakan – Malm,Arthur, email 4AMM–02, 1997.

6.a3 c6 7.d4 Bd6 8.Nbd2 Qe7 9.Be2 e5 10.de5 Ne5 11.0–0 (11.Ne5 Be5 12.Be5 Qe5 13.Bg4 Ng4 14.cd5 cd5+=) 11...Nf3 (11...Bf3!? 12.Nf3 Nc4 13.Bc4 dc4+=) 12.Bf3= Bf3 13.Qf3 Be5 14.Be5 Qe5 15.Rfd1 0–0 16.h3 Rad8 17.cd5 Rd5 18.Nc4 Qc3 19.Na5 b6? (19...Rd1 20.Qd1 b6 21.Rc1 Qa3 22.Nc6+=) 20.Rac1 (better is 20.Rdc1!? Qb2 21.Nc6+/–) 20...Qa3 21.Nc6 Rd1 22.Rd1 h6 23.Ne7 Kh8 24.Qg3 (24.Qf4!?+=) 24...Qb4= 25.Nf5 Rg8 26.Rd8?? (better is 26.Nd6=) 26...Qb1–+ 27.Kh2 Qf5 (27...Qf5 28.Rd4 Rc8–+) 0–1. barborski – llop (1795), kurnik, 2013.

6.c5 a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 Be7 10.Be2 Qa8 (10...0–0 11.0–0=) 11.Nc3 (11.Bf6 Nf6 12.0–0 0–0=) 11...0–0 12.0–0 Qa3 13.Qa4 Qa4=+ 14.Na4 Ra8 15.Nc3 Ne4 16.Ne4 de4 17.Nd4 Be2 18.Ne2 Ra2 19.Bc3 b6 20.cb6 Nb6 21.Ng3 f5 22.Nh5 g5 23.f3 ef3 24.gf3 Nd5 25.e4 Nc3 26.dc3=+ Bd6 27.Rf2 Rf2–/+ 28.Kf2 Bh2 29.ef5 ef5 30.Nf6 Kf7 31.Nh7 Bf4 32.Ke2 g4 0–1. Denney,Cyril – De Koning,Leen, C2.1997.0.00067, 1997.

6.c5 a5 7.a3 Be7 8.Be2 ab4 9.ab4 Ra1 10.Ba1 0–0 11.Ne5 (11.0–0!?+=) 11...Be2–/+ 12.Qe2 Qa8 13.Nd7 (13.Bd4 Ne5 14.Be5 Qa4–/+) 13...Qa1 14.Nf6 Bf6 15.0–0 Qa4 16.b5 (16.d4 Qb4 17.Nd2 Ra8–/+) 16...Qc2 17.d4?? (better is 17.Re1 Qc5 18.d4–+) 17…Qe2–+ 0–1. purplegadge (1785) – marekt (2035), gameknot.com, 2014.

6.cd5 Bb4 7.a3 Ba5 8.Be2 (better is 8.Qa4!? Bf3 9.gf3=) 8...ed5–/+ 9.0–0 0–0 10.h3 Bh5 11.g4 Bg6 12.d3 h6 13.Nbd2 c5 14.Rc1 Rc8 15.Qb3 Qc7 16.Rfd1 Rfe8 17.Nh4 Bh7 18.Ndf3 a6 19.a4 Qd6 20.Qb7?? (better is 20.Bf6 Nf6 21.Ng2–+) 20...Rb8–+ 21.Qa7 Rb2 22.Kf1 (22.Bf1 Reb8 23.d4 c4 24.Bc4 dc4–+) 22...Reb8 23.d4 c4 24.Ng2 (24.Bc4 dc4 25.Ne5 R2b7 26.Nc4 Qh2 27.Qb7 Rb7–+) 24…R2b7 (24...R2b7 25.Qb8 Rb8–+) 0–1. madik – megaotetz (1715), gameknot.com, 2011.

6.b5 Bd6

7.Nc3 c6 8.a4 0–0 9.Be2 Re8 10.d4 Qe7 11.c5 Bc7 12.a5 e5 13.de5 Ne5 14.b6 ab6 15.cb6 Bd6 16.0–0 Nf3 17.Bf3 Bf5 18.Ne2 Ne4 19.Nd4 (19.Ra2 Qh4 20.Ng3 Ng3 21.hg3 Qb4+=) 19...Bg6 (19...Qe5!? 20.g3 Bh3–/+) 20.Be4 Be4 21.Qg4 Qe5 22.g3 Bg6 23.Ra4 h5 24.Qf3 h4 (24...Qe4 25.Qe4 Re4 26.Raa1+=) 25.Bc3 (25.Nb5 Qb2 26.Nd6+/–) 25...hg3 26.hg3 Be4 27.Qg4 g6?? (27...Qf6 28.Rc1 Qh6 29.Qh4+=) 28.Ne2?? (better is 28.Nb5 Qe7 29.Nd6 Qd6 30.Qh4+/–) 28...Qh8?? (better is 28...Qh5 29.Qh5 gh5+=) 29.Bh8+– Kh8 30.f3 (better is 30.Qd7 Be7 31.Qb7 Bd3+–) 30...Bd3 (30...Bf5 31.Qd4 Be5 32.Qd2+–) 31.Re1 (31.Qd4 Kg8 32.Qd3 Bc5+–) 31...Kg7 (31...Bc5 32.Nd4+–) 32.Nf4 (32.Qd4 Kg8 33.Qd3 Bc5+–) 32...Rh8 (32...Bb5 33.Raa1 Be5+–) 33.Nd3 Rae8 34.Qd4 f6 35.Nf4 Rh6 36.Kg2 Reh8 37.Rg1 Rh2 38.Kf1 Rc2 39.a6 Rhh2 40.Ng2 Rc1 41.Kf2 Rc2 42.Kf1 Rc1 43.Kf2 Rc2 44.Ke1 Rc1 45.Kd2 1–0. elektrooon – skogsrune (1615), 2013.

7.d4 dc4 8.Bc4 0–0 +=.

7.Be2 0–0 8.0–0 a6 (8...dc4 9.Bc4 c6 10.h3+=) 9.a4 (9.cd5 Bf3 10.Bf3 Nd5=) 9...ab5 10.ab5 Ra1 11.Ba1 dc4 12.Bc4 e5 ½–½. Lorenc,Tomas (2160) – Duhayon,Yves (2260), Tatranske Zruby SVK, 2006.

7.Be2 0–0 8.d4 dc4–/+ 9.0–0 (better is 9.Bc4 e5 10.h3 Bf3 11.Qf3 ed4 12.Bd4–/+) 9...c5 (better is 9...a6 10.ba6 Ra6–/+) 10.bc6= bc6 11.Nbd2 Nb6 12.Nc4 (12.Ne5 Bf5=) 12...Nc4+= 13.Bc4 c5 (13...Rb8 14.Qc2+=) 14.Be2 (14.h3 Rb8 15.dc5 Bf3 16.Qd6 Qd6 17.cd6 Rb2 18.gf3 Rb6=) 14...Rb8= 15.dc5 Bc5 (15...Rb2 16.cd6 Ne4 17.Qd4 Re2 18.Qe4 Bf3 19.Qf3=) 16.Be5+= Qd1 17.Rfd1 Rbd8 18.h3 Bh5 19.g4 Bg6 20.Nd4 (20.Rac1 Rd1 21.Bd1 Bb6+=) 20...Be4 21.Rac1 Bb6 22.a4 Rc8 23.Bb5 h6 24.Nc6 Bc6 25.Bc6 Rfd8 26.Bb7 (26.Rd8!? Bd8 27.Kg2+=) 26...Rd1= 27.Rd1 Rc4 28.Ra1 Nd7 29.Bd6 Ba5 (29...Bc7 30.Ba6 Rc6 31.Bc7 Ra6 32.a5=) 30.Be7 (30.Kg2 Nb6=) 30...Ne5 31.Ba6 Rc2 32.Rb1 f6 (32...Bb6 33.Bd6 f6 34.Rb3=) 33.Rb8+= Kf7 34.Bd6 (34.Rb7 Kg8+=) 34...Rc6 (34...Nf3 35.Kg2 Ne1 36.Kf1=) 35.Rb7 Kg8 36.Be5 Ra6 37.Bd4 Bb6 38.Bb6 ab6 39.Kg2 Ra4 40.Rb6 Kf7 41.Rb7 Kg6 42.f4 f5 43.Rb6 Kf7 44.Kf3 Ra3 45.g5 hg5 46.fg5 Ra4 47.Rb7 Kg6 48.Rc7 Rb4 49.Ra7 Rc4 ½–½. Lorenc,Tomas (2150) – Kucera,Petr (2155), CZE–ChT2B, 2010.

7.Be2 dc4 8.Bc4 0–0 9.d4 +=.

5.d4 e6

6.a3 a5 7.b5 Nb6 8.Nbd2 Na4 9.Qc1 c5 10.bc6 bc6 11.Rb1 Nb2 12.Qb2= Bd6 13.Ne5 Be5 14.de5 Nd7 15.Qc3 0–0 16.Bd3 Qc7 17.f4 Qa7 18.Nf1 Rac8 19.h3 Bh5 20.g4 Bg6 21.f5 ef5 22.gf5 Bh5 23.Qd4 Qc7 24.Qh4 g6 25.Rg1 Kh8 26.e6 Ne5 27.Qf6 Kg8 28.e7 Rfe8 29.Ng3 Nd3 30.cd3+= Qe7 31.Qe7 ½–½. Woelfelschneider,Peter – Edina, Mil.F6, 2000.

6.a3 a5 7.b5 Bd6 8.c4 dc4 9.Bc4 0–0 10.0–0 Rc8 11.Nbd2 =.

6.a3 a5 7.b5 Bd6 8.Nbd2 Ne4 (8...0–0 9.c4+=) 9.Ne4 de4 10.h3 Bh5 (worse is 10...ef3 11.hg4 fg2 12.Bg2+/–) 11.g4 Bg6 12.Nd2 h5 13.Bg2 hg4 14.Ne4 gh3 15.Nd6 cd6 16.Bb7 (worse is 16.Bh3 Be4 17.f3 Bf5–+) 16...Rb8 17.Bc6 Qg5 18.Qf3 Bh5?? (18...Rb5 19.Bb5 Qb5 20.Qa8 Nb8 21.Bc3=) 19.Qg3 (better is 19.Qh3 Ke7 20.Qh4 Qh4 21.Rh4+–) 19...Qg3= 20.fg3 Bg6 21.Kd2 (21.e4!?=) 21...Ke7 22.Bd7? (better is 22.e4+=) 22...Kd7–+ 23.a4 Be4 (better is 23...h2!? 24.c4 Be4–+) 24.Rh2–/+ d5 (24...Rbc8 25.Bc3–/+) 25.Ba3 (25.Bc3 Rbc8–/+) 25...Bg2 26.Bc5 f6 27.Rg1 Rh6 28.Rhg2 (28.Ke2 Rh5–/+) 28...hg2–+ 29.Rg2 Rh1 30.g4 (30.Re2 Rbh8–+) 30...Ra1 31.g5 f5 (31...Ra4?! 32.gf6 gf6 33.Rg7 Kc8 34.Rg8 Kc7 35.Rg7 Kc8 36.Rg8 Kb7 37.Rg7 Kc8=) 32.g6 (32.Rh2 Ra4 33.Rh7 Rg8–+) 32...Ra4 33.b6 Rb4! 34.Rh2? Rb5 35.Rh7 Rg8 36.c4? Rb3 37.cd5 ed5 38.Rh1 a4 39.Rf1 Ke6 40.Ra1 Ra8 41.Kc2 Rb5 42.Ra3 Kf6 43.Ra1 Kg6 44.Rg1 Kf7 45.Rf1 g6 46.e4 de4 47.Kc3 Rb8 48.Kc4 R5b6 49.Bb6 Rb6 50.Kd5 a3 51.Ra1 Ra6 52.Ke5 a2 53.d5 e3 54.d6 Ra5 55.Kf4 Ke6 56.Ke3 Kd6 57.Kf4 Kd5 58.Ke3 Kc4 59.Kd2 Kb3 60.Ke1 0–1. Kossobudzki,R (2065) – Lewtak,Da (2340), European Rapid, 2014. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 Nbd7 5.d4 e6)

6.a3 a5 7.b5 Bd6 8.Bd3 e5 9.de5 Ne5 10.Be2 Bf3 11.Bf3 0–0 12.Qc1 (12.Bd5? Nd5 13.Qd4 Nf6–+) 12...Nf3 13.gf3 c6 14.Nd2 cb5 15.Nb3 a4 16.Nd4 b4 17.Qd2 ba3 18.Ba3 Ba3 19.Ra3 Qd6 20.Nb5 Qb6 21.Qd3? (21.Nc3 Qb4 22.Ra1–+) 21…Ra5 ½–½. bratek55 (1620) – 12mamlat (1750), internet, 2012.

6.a3 a5 7.b5 Be7 8.c4 (8.Bd3 c5 9.bc6 bc6 10.Nbd2 c5 11.h3=; 8.Nbd2 0–0 9.Bd3 c5 10.bc6 bc6 11.h3=) 8...0–0 9.cd5 ed5 10.Bd3 Bd6 11.0–0 =.

6.b5 Bb4 7.c3 Bd6 8.c4= dc4 9.Bc4 0–0 10.0–0 e5 11.h3 Bf3 12.Qf3 e4 13.Qe2 Nb6 14.Bb3 a6 15.a4 ab5 16.ab5 Ra1 17.Ba1 Qe7 18.Nd2 Ra8 19.Nc4 Nc4 20.Qc4 Qd7 21.Bc3 Bf8 22.f3 Re8 23.fe4 Re4 24.Rf3 Bd6 25.Qd3 Qe8 (The backward pawn on e3 becomes a target) 26.Bc2 Rh4 27.g4 Qe6 28.Qf5 Qc4 29.Be1 Rh6+/– 30.Bg3 Bf8 31.g5 Rh5 32.h4 h6+= 33.Bd3 Qc1 34.Rf1?? Qe3–/+ 35.Bf2 Qd2 36.Be1 Qe3 37.Bf2= Qd2 38.Be1 Qe3 (better is 38...Qb2 39.b6 cb6–/+ (39...Qd4?! 40.Bf2 Qd6 41.Be2=+; 39...Qb6?! 40.Be2 Qd4 41.Bf2=)) ½–½. Nikoladze,Sopio (2230) – Lomineishvili,Maia (2370), GEO–ch (Women), 2002.

6.b5 c6 7.Nbd2 =+.

6.b5 Ne4 7.Nbd2 Bb4 8.c3 Bd6 9.Be2 0–0 10.Ne4 de4 11.Nd2 Be2 12.Qe2 Qg5 13.0–0 Nf6 14.f4 Qh4 15.c4 Bb4 16.a3 Be7 17.f5 ef5 18.Rf5 Bd6 19.g3 Qg4 20.Qg4 ½–½. Boehnke,Hartmut (2095) – Marquardt,Guenter (2310), remoteschach.de, 2004.

6.a3 Bd6

7.c4 0–0 8.c5 Be7 9.Bd3 =.

7.c4 a5 8.c5 Be7 9.b5 Ne4 10.Bd3 Bh4 11.0–0 Qf6 =.

7.c4 a5 8.c5 Be7 9.Nc3 Ne4 10.Bd3 Ng5 11.b5 Nf3 12.gf3 Bh5 13.Rg1 0–0 14.Qc2 f5 15.f4 Qe8 16.Na4 Nf6 17.Rc1 Bg4 18.c6 b6 19.Bf1 Ne4 20.Nc3 Nc3 21.Qc3= Qh5 22.h3 Bh3?? 23.Rh1+– (23...Qg6 24.Bh3+–) 1–0. Van Rooijen,Peter – Dossis,Spyros, IECG, 2000.

7.c4 dc4 8.Bc4 a5 9.b5 0–0 10.0–0 Rc8 11.Nbd2 Nb6 =.

7.c4 c6 8.Nbd2 0–0 9.Bd3 e5 10.cd5 cd5 11.de5= Ne5 =.

7.c4 c6 8.Nbd2 0–0 9.Bd3 e5 10.de5 Be5 11.Qb3 Qe7 12.0–0 Bb2 13.Qb2 Ne4 14.cd5 cd5 15.Qd4 Ndf6 16.h3 Bf5 17.Rac1 a5 18.Ra1 (18.Rfd1 Nd2 19.Rd2 Bd3 20.Rd3 ab4 21.Qb4 Qb4 22.ab4 Rfc8 23.Rc8 Rc8+=) 18...Rfc8 19.Nh4 (19.b5!?=) 19...Nd2–/+ 20.Nf5 Qe6 21.Ng3 Nf1 22.Kf1 Qc6 23.Nf5 Rc7 24.b5 Qc3 25.Ne7 Kf8 26.Nc6 Qd4 27.Nd4 (27.ed4?? bc6 28.Rc1 Rb8–+) 27...Rac8 28.Ke2 Ne4 29.f3 Nd6 30.Nb3 d4 (30...Rc3 31.Nd2–+) 31.Na5? (better is 31.Nd4!? Rc3 32.Kd2+=) 31...Ra8 32.b6 Re7 33.Nb7? Rb7 0–1. Hellerbrand,Jochen – Ewald,Alexander, Oberpfalz–ch M2, 1998. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 Nbd7 5.d4 e6 6.a3 Bd6)

7.c4 c6 8.Nbd2 a5 9.c5 Bb8 10.Qa4 0–0 11.b5 Qc7 +=.

7.c4 c6 8.Nbd2 Ne4 9.c5 Bc7 10.Be2 Bf5 11.0–0 0–0 =.

7.Nbd2 0–0 8.c4 dc4 9.Nc4 Nb6 10.Nd6 cd6 11.Bd3 Rc8 =.

7.Nbd2 0–0 8.Bd3 a5 9.c4 ab4 10.c5 ba3 11.Ra3 Ra3 =+.

7.Nbd2 0–0 8.h3 Bh5 9.c4 c6 10.Qc2 (10.c5 Bf3 11.gf3 Bb8=) 10...Rc8 (10...Bf3 11.gf3 Be7 12.Nb3=) 11.Bd3 (better is 11.Ng1=) 11...Ne8?? with this move Black loses his initiative (better is 11...Bf3 the rescuing straw 12.gf3 Re8=) 12.Bh7+– Kh8 13.g4 g6 (13...f5 14.Bf5 ef5 15.gh5 Be7+–) 14.gh5 Kh7 15.Rg1 (15.Rg1 Qf6 16.Rg5+–) 1–0. Bienaime,Pierre (1820) – Le Duin,Thierry (2025), Bethune op, 2001. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 Nbd7 5.d4 e6 6.a3 Bd6)

7.Nbd2 a5 8.ba5 0–0 9.c4 Ra5 10.c5 Be7 11.Bd3 Qa8 =.

7.Nbd2 a5 8.b5 c5 9.dc5 Nc5 10.c4 0–0 11.cd5 Nd5 =.

7.Nbd2 a5 8.c4 ab4 9.c5 ba3 10.Ba3 Be7 11.Qb3 Ra7 –/+.

7.Nbd2 a6 8.c4 Ne4 9.c5 Be7 10.Be2 Nd2 11.Nd2 Be2 =.

7.Nbd2 Ne4 8.c4 Nd2 9.Qd2 Bf3 10.gf3 dc4 11.Bc4 Qg5 =.

7.Nbd2 Ne4 8.Bd3 Nd2 9.Qd2 Qf6 10.Be2 Nb6 11.0–0 0–0 =+.

7.Nbd2 Ne4 8.Be2 Nd2 9.Nd2 Be2 10.Qe2 a5 11.b5 0–0 =.

7.Bd3 e5 8.de5 Be5 9.Be5 Ne5 10.Nbd2 Qe7 11.h3 Bh5 =+.

7.Be2 c6 8.c4 dc4 9.Bc4 0–0 10.0–0 a5 11.ba5 Qa5 =+.

7.Nbd2 c6

8.c4 0–0 9.Bd3 e5 10.cd5 cd5 11.de5 Ne5 =.

8.c4 a5 9.c5 Bb8 10.Qa4 Qc8 11.b5 0–0 +=.

8.c4 Ne4 9.c5 Bc7 10.Be2 Bf5 11.0–0 Qf6 =.

8.Be2 a5!? +=.

8.Be2 Qc7 9.c4= 0–0 10.c5 Be7 11.0–0 h6 12.Qc2 Bf5 13.Bd3 Bd3 14.Qd3 a5 15.b5 (15.Bc3 ab4 16.ab4 b6=) 15...b6+= 16.bc6 Qc6 17.cb6 Qa4 18.Rac1 Rab8 19.Rc2 (19.Qc2 Qc2 20.Rc2 Rb6+=) 19...Rb6 20.Qc3 Rfb8 21.Rfc1 (21.Ra1 Ne4 22.Ne4 Rb3–/+) 21...Ne4 22.Ne4 Rb3 23.Qd2 (23.Qc7 de4 (worse is 23...Rb2 24.Rb2 Rb2 25.Nc3=) 24.Ne5 Ne5 25.Qe7 Rd3–/+) 23...de4–+ 24.Ne1 Nb6 25.f3 (25.Rc7!? Bd6 26.R7c6–+) 25...Bg5–+ 26.f4 Bd8 27.g3 Nd5 28.Ng2 Qb5 29.Bc3 (29.Qe2 Qb7–+ (29...Rb2?! 30.Rb2 Qb2 31.Qb2 Rb2 32.Rc8–/+)) 29...a4 30.Bb4 (30.Qf2 Ra3 31.Bd2 Qd7–+) 30...Nb4 31.ab4 a3 32.Rc5 (32.Ne1–+) 32...Qb4 33.Qb4 R3b4 34.Re1 (34.R5c2 Rb1 35.Re1 Ba5 36.Rc8 Rc8 37.Rb1 a2–+) 34...a2 35.Rc3 Rb2 36.Ra3 (36.Rc4 R8b5–+) 36...R8b5 37.h4 (37.Kh1–+) 37...Ra5 38.Rc3 a1Q 0–1. chpot (1945) – marekt (2095), gameknot.com, 2014.

8.h3 Bf5 +=.

5.Be2 c6

6.0–0 Qb6 7.a3 a5 8.Bd4 Qc7 9.c4 (better is 9.ba5!? Ra5 10.Bc3+=) 9...e5–/+ 10.Bc3 ab4 11.ab4 Ra1 12.Ba1 dc4 13.Qa4 e4 14.Nd4 Be2 15.Ne2 Bd6 16.Qa8 Nb8 (16...Qb8!? 17.Qb8 Bb8–/+) 17.Bf6+= gf6 18.Ng3 0–0 19.Ne4 Na6 20.Nf6 Kg7?? (20...Kh8 21.Qa7 Bh2 22.Kh1 Be5–/+ (22...Nb4? 23.Qc5 Rd8 24.Qf5+–)) 21.Ne8+/– Re8 22.Qe8 Nb4 23.f4 Nd5 24.Rf3 Nf4 25.ef4 Qb6 26.Qe3?? Bc5–+ 27.Qc5 Qc5 28.Re3 Qd4 29.g3 b5 30.Kf1 b4 31.Kf2 Qb2 32.Re1 0–1. Portnoy,Yuriy (1950) – Mukhin,Alexander (2165), Uljanovsk Bagirov Memorial, 2007.

6.0–0 e5 7.Ne5 Be2 8.Qe2 Ne5 9.Be5 Bb4 =.

6.0–0 e5 7.Ne5 Ne5 8.f3 Bh5 (8...Nf3 9.Bf3 (< 9.gf3 Bh3–/+) 9...Bf3 10.Rf3 Bb4 11.Bf6 gf6 12.a3=+) 9.Be5 Bb4 10.c3 Ba5 (10...Bd6 11.Bd6 Qd6 12.Qb3=) 11.f4 (11.g4 Bg6=) 11...Be2= 12.Qe2 0–0 13.c4 dc4 14.Nc3 (14.Qc4!? Bd2 15.Nd2 Qd2 16.Bf6 Qe3 17.Kh1 gf6 18.Rae1=+) 14...b5–/+ 15.Rf3 (15.Rad1 Nd7 16.Bd6 Re8–/+) 15...b4 (15...Re8 16.Rd1–/+) 16.Na4 (better is 16.Nb1 Ng4 17.Bd4–/+) 16...b3 (16...Ne4 17.Bd4–/+) 17.Bc3?? (better is 17.Qc4!? Bd2 18.ab3=) 17...Bc3 (17...Ne4!?–+) 18.Nc3–/+ Qa5 19.Qc4= ba2 20.Ra2+= Qb6 21.Ne4?? Ne4?? 22.Qe4= h6 23.Rf1 Rfe8 24.Qd3 Rad8 25.Qc3 Re4 26.Rb2 Qc7 27.Rf3 Ra4 28.d3 Ra1 29.Kf2 Qe7 30.e4?? Qh4–/+ 31.Rg3 Qh2?? 32.Qg7 1–0. dugmak – I need chocolate..., ChessWorld.net, 2005.

6.0–0 Bf3 7.Bf3 e5 8.a3 a5 9.d4 e4 10.Be2 ab4 11.Qe1 –/+.

6.0–0 Bf3 7.Bf3 e5 8.a3 Qc7 9.Be2 Bd6 10.c4 c5 (10...e4 11.h3=+) 11.bc5 Nc5 12.cd5 Nd5 (12...Qb6 13.Qc2 Nb3 14.Ra2+/–) 13.Bb5+= Nd7 14.e4 (14.Qf3 N5f6 15.Rc1 Qb6+=) 14...N5b6= 15.Qg4 0–0 16.Rc1 Qd8 17.d4 Nf6 (17...ed4 18.Bd4 Nf6 19.Bf6 Qf6=+) 18.Qd1 (18.Qf5 ed4 19.e5 a6+–) 18...Ne4 (18...Qb8=) 19.de5 (19.Qf3 Ng5 20.Qb7 ed4 21.Rd1–/+) 19...Bc5=+ 20.Qe2 (20.Nc3 Bf2 21.Kf1 Bd4–/+) 20...Bf2–/+ 21.Kf1 (21.Kh1 Qh4 22.Rc3 Ng3 23.Rg3 Bg3 24.h3–+) 21...Qh4= 22.Bd3 Nd5?? (better is 22...Bd4! 23.Be4 Bb2 24.Qb2 Qe4–/+) 23.Qe4+– Ne3 24.Ke2 Ng4 25.h3 Be3 26.Rf1 Bb6 27.Qg4 Qh6 28.Qf4 Qh5 29.Qf3 Qg5 30.Nd2 Ba5 31.Qf4 Qg2 32.Rf2 Qh3 33.Rh2 Bd2 34.Kd2 Qd7 35.Ke2 h6 36.Qe4 Rfd8 37.Bc3 Rac8 38.Qh7 Kf8 39.Bb4 (39…Qd6 40.Bd6 Rd6 41.Qh8 Ke7 42.ed6 Kd6 43.Qc8+–) 1–0. Moeseneder,Christian – Granseier,Jens, NRW–chT U20 Germany, 1995.

6.0–0 Bf3 7.Bf3 e5 8.a3 Bd6 9.d3 0–0 10.Nd2 Re8 11.c4 a5 12.Qb3 e4 13.de4 de4 14.Be2 Qc7 15.c5 (15.h3!?=) 15...Bh2–/+ 16.Kh1 Be5 17.Nc4 a4 18.Qc2 Re6 19.Rad1 Nd5 20.Ne5 Ne5 21.Qe4?? (better is 21.g3 Nf6 22.Rd2=) 21…Rh6 0–1. Castro Couceiro (1870) – Ivanovich Balsinde (2150), ESP–ch Student, 2007. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 c6 4.e3 Bg4 5.Be2 Nbd7)

6.a3 a5 7.c3 (7.b5!?=) 7...e5=+ 8.d4 (8.0–0 Bd6=+) 8...e4–/+ 9.Nfd2 Be2 10.Qe2 b5 11.Nb3 a4 12.Nc5 Nc5 (12...Qc7 13.Nd2–/+) 13.dc5=+ Nd7 14.c4 bc4 15.Qh5 (15.0–0 Qg5=+) 15...Nf6 (15...Qb8 16.0–0–/+) 16.Qd1=+ Qd7 17.Nc3 (17.Bf6 gf6 18.0–0 Rg8=+) 17...Qg4–/+ 18.0–0 (18.Qg4 Ng4 19.Rd1 f6–/+) 18...Qd1 19.Rad1 Kd7 (19...Nd7 20.f3 ef3 21.gf3=+) 20.Rd2 (20.f3 ef3 21.gf3 Kc7=+) 20...Kc7 (20...Be7 21.f3 ef3 22.e4=) 21.Ne2 (21.f3!? ef3 22.gf3=+) 21...Be7–/+ 22.Nd4 g6 (22...Rae8 23.Nf5–/+) 23.Rb1 (23.f3 Rhe8=+) 23...Rhb8 24.Ne2 (24.Rbd1 Kd7–/+) 24...Nd7 25.Kf1 Bf8 (25...Bf6 26.Bf6 Nf6 27.Nc3–/+) 26.Rbd1 Re8 (26...h6 27.Nc3 Rd8 28.Ke2–/+) 27.Bd4 (27.Nc3 f6–/+) 27...Ne5 28.Nc3 (28.Nf4 Rab8–/+) 28...Nd3 29.Ne2 Bh6 30.Nc1 (30.h3 Bg5–/+) 30...f5–+ 31.g3 (31.Nd3 ed3 32.g3 g5–+) 31...g5 (31...Ne5 32.Be5 Re5 33.Ne2–+) 32.Nd3 ed3 33.f4 (33.Bf6 g4–+) 33...gf4 34.ef4 (34.gf4 Re4 35.Rf2 Rg8–+) 34...Re6 (34...Re4 35.Bf6–+) 35.Rb2 (35.Re1 Re4 36.Re4 de4–+) 35...Rae8 (better is 35...Re4 36.Bf6 Rae8–+) 36.Rdd2? (36.b5 cb5 37.Rb5 Bf8–+) 36...R8e7 (better is 36...Re4 37.Bf6 Rf8 38.Be5 Re5 39.fe5 c3–+ (< 39...Bd2 40.Rd2 Re8 41.Ke1–+)) 37.Bf2?? (37.Rb1–+) 37...Bg7 (better is 37...c3 38.Ra2 cd2 39.Rd2–+) 38.Rb1 Bc3 39.Rdd1 Re2 40.b5 (40.h3 Ra2 41.Be1 Bd4–+) 40...cb5 41.Rb5 Rb2 (41...d2 42.Rbb1–+) 42.Rb2 (42.Rb6 Rb3–+) 42...Bb2 43.Rd2 (43.Be1–+) 43…Bc3 (44.Rd1 d4–+; better is 43...c3 44.Rd3 c2–+) 0–1. Scheidacker,Mirko – Von Loehnysen,Leonard, Spree op, 1997.

6.a3= Qc7 7.0–0 e5=+ 8.Nh4 Be2 9.Qe2 g6 10.f4 Bg7 11.fe5 Ne5 12.Nf3 Nf3 13.gf3 0–0 14.Bd4 Nh5 15.Bg7 Ng7 16.Nc3 Rfe8 17.b5 Rad8 18.Rab1 c5 19.Rfe1 Re6 20.Qg2 d4 21.Ne4 de3 22.Re3 Nf5 23.Rc3 Nd4 24.Rc5 Qb6 25.c3 Re4! 26.fe4 Ne6 27.d4 Nc5 28.dc5 Qc5 29.Qf2 Qc3 30.Qa7 Rd2–+ 31.Qb8 Kg7 32.Qf4 Qd4 33.Kh1 Rf2 34.Qh4 Qe3 (35.Qg3 Qe4 36.Kg1 Rf3–+) 0–1. Rosner,Dirk – Kordts,Wolfgang, DESC, 1999.

6.a3 e5 7.d3 Bd6= 8.c4 Qe7 9.0–0 0–0 10.Nbd2= Rfe8 11.h3 Bh5 12.Nh4 Be2 13.Qe2 Qe6 14.Ndf3 h6 15.Nh2 Rad8 16.c5 Bb8 17.g4 e4 18.de4 de4 19.Nf5=+ Nf8 20.Rad1 Ng6 21.Rd8 Rd8 22.Rd1 Rd1 23.Qd1 Be5 24.Be5 Ne5 25.Qd6 Ned7 26.Qe6+= fe6 27.Nd4 Kf7+= 28.Nf1 g6 29.Nd2 e5 30.Ne2 Ke6 31.Nc3+/– b6 32.cb6 ab6 33.a4 c5 34.b5 Kd6 35.Kf1 g5 36.Ne2 Ke6 37.Ke1 Kd6 38.Kd1 Ke6 39.Kc2 Kd6 40.Nc3 Kc7 41.Nde4+– Ne4 42.Ne4 Kd8 43.Kc3 Ke7 44.Kc4 Ke6 45.f3 Nf8 46.a5 ba5 47.Nc5 Ke7 48.b6 Kd6 49.Kb5 a4 50.Na4 Nd7 51.e4 Nb8 52.Nc5 Nc6 53.Nb3 Nb8 54.Na5 Kd7 55.Nc4 Ke6 56.b7 Nd7 57.Ka6 (57...Nc5 58.Ka7 Nb7 59.Kb7+–; 57.Kc6 Nb8 58.Kc7 Nd7+–) 1–0. Reimer,K – Konietzko, Mehlingen Pfalz, 1992.

6.a3 e6 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.Be2 e6 6.a3 Nbd7).

6.a3 Bf3 7.Bf3 e5 8.0–0 e4 9.Be2 Bd6 10.Re1 Qc7 11.g3 (11.h3 0–0+=) 11...h5–/+ 12.h4 (better is 12.d3–/+) 12...Bg3–+ 13.Kg2 Bf2! 14.Kf2 (14.Kf2 Qh2 Double attack) 14...Qh2 15.Kf1 Qh1 (better is 15...Rh6 16.Be5 Ne5 17.c4 Rg6 18.Bg4 Qh1 19.Kf2 Nfg4 20.Qg4 Ng4 21.Ke2 Qf3) 16.Kf2 Qh4 17.Kg2 Rh6 (17...Rh6 18.Rh1 Rg6 19.Bg4 Rg4 20.Qg4 Qg4 (worse is 20...Ng4 21.Rh4 Ndf6 22.Bd4+/–) 21.Kf2 Qf3 22.Ke1 Qh1 23.Ke2 Qf3 24.Ke1 Ng4 25.c4 Nh2 26.d3 ed3 27.Kd2 Qe2 28.Kc3 Qc2 29.Kd4 Qc4#) 0–1. Mauron,Regis – Hurlot,Rodolphe (1755), 13e Tournoi de Nol, 2010.

6.a3= Bf3 7.Bf3 e5 8.d3 Be7 9.0–0 0–0 10.c4 dc4 11.dc4 Qc7 12.Nd2 Rad8 13.Qc2 Rfe8 14.c5 Nd5 15.Rad1 N7f6 16.Nc4+/– e4 17.Be4 Ne4 18.Qe4 Bf6 19.Qc2 Bb2 20.Qb2 Nf6 21.Rd4 Rd5 22.Rd5 Nd5 23.Rd1 Qe7 24.Nd6 Nf6? 25.Ne8 Qe8 26.Qd4 (26...Nd5 27.e4+–) 1–0. pcmvr (2800) – pander (2240), net–chess.com, 2007.

6.a3= Bf3 7.Bf3 e6 8.Be2 =.

6.a3 h5 7.d3 Qc7 8.Nbd2 e5 9.e4 Bd6 10.c4 Rc8 (10...de4!? 11.Ne4 Bf5=) 11.c5 Be7 12.h3 Bf3 13.Bf3 b5 (13...0–0 14.ed5 Nd5 15.0–0+=) 14.0–0 d4 15.Be2 Nf8 16.Bc1 N6d7 (16...a5 17.Nf3+=) 17.Re1 (17.a4+/–) 17...g5? (better is 17...g6!?+=) 18.Bh5+– Nf6 19.Be2 Kd7? (19...Ne6 20.Nf1+–) 20.Nf1 (20.a4 Ne6 21.ab5 cb5+–) 20...Ne6 21.Nh2 Rcg8 22.Ng4 Nf4 23.Nf6 Bf6 24.Bg4 Kd8 25.a4 Rg6 26.ab5 cb5 27.Ra6 Be7 28.Rg6 Ng6 29.g3 a6 30.Qb3 Bf6 31.Qd5 Ke7 32.Bd2 Rc8 33.Qa2 Qc6 34.Ra1 Ra8 35.Qd5 Rc8 36.Bc8 Qc8 37.Qd6 Ke8 38.Qf6 Kf8 39.Bg5 Ke8 40.Ra6 Qb8 41.Qc6 Kf8 42.Ra8 Qa8 43.Qa8 Kg7 44.c6 Kh7 45.c7 Kg7 46.c8Q Nf8 47.Qf8 Kg6 48.Qh6 1–0. Mauron,Regis (1615) – Coulet,Axel, 2012.

6.a4 Qb6 7.b5 Bf3 8.gf3 e5 9.a5 Qc7 10.a6 cb5 11.Nc3 b4 12.Nb5 Qb8 13.Rg1 Nc5 (13...ba6 14.Ra6 Nc5 15.Rc6=) 14.f4 ef4 (14...ba6? 15.Be5 Qd8 16.Nc7 Ke7 17.Na8 Qa8 18.d4+–; worse is 14...Na6 15.Be5 Qd8 16.Bd4+=) 15.Rg5 (better is 15.ab7 Qb7 16.Rg7=) 15...ba6?? (better is 15...Ncd7 16.ab7 Qb7 17.ef4 Qb8–/+) 16.Be5+/– Qb7 17.Nc7 Kd8 18.Na8 Nfe4 (18...Qa8 19.Bf6 gf6 20.Rh5+=) 19.Rg1 (19.Bg7 Rg8 A) 20.ef4? Bg7 (20...Rg7?! 21.Rg7 Bg7 22.Ra5–+; 20...Ng5?! 21.Bf6 Be7 22.Bg5–/+) 21.Rg1 Qa8–+; B) 20.Bf8 Ng5 B1) 21.ef4 Nf3 (21...Rf8?! 22.fg5 Re8 23.Ra5+=) 22.Bf3 Rg1 23.Ke2 Qb5 24.d3 Qe8 (24...Rd1 25.Kd1 b3 26.Bc5 Qc5 27.cb3 Qf2 28.Bd5 Qf1 29.Kc2 Qa1 30.h3–+) 25.Kd2 Rd1 26.Kd1 Qf8–+; B2) 21.Bc5 Nf3 22.Bf3 Rg1 23.Ke2 Qb5 24.d3 Rd1 25.Kd1 Qc5 26.d4–/+ (26.ef4 Qf2 27.Kc1 Qf3–+)) 19...fe3+= 20.de3 f6 21.Bb2 Bd6 22.Nc7 Bc7 23.Rg7 b3 24.Kf1 bc2 25.Qc2 Qc8? 26.Bf6!+– Ke8 27.Bg4 Ne6 28.Re7 Kf8 29.Be6 Qb8 30.Rf7 Ke8 31.Qc6 1–0. Lorenc,Tomas (2150) – Kolar,Jachym (2095), CZE–chT2b, 2007.

6.a4 Qc7=+ 7.h3 Bh5 8.Na3 e5=+ 9.c3 Bd6 10.d3 h6 11.Nd2 Bg6 12.Qb3 0–0 13.Rc1 Rfe8 14.c4=+ a6 15.c5 Be7 16.Nf3? a5–/+ 17.d4 ed4 18.Bd4 Ne4 19.b5 Ndc5 20.Bc5 Nc5 21.Qd1 Ne4 22.Qb3 Bb4 23.Kf1 Qd6 24.Nb1 Rad8 25.g3 Nc5 26.Qd1 Be4 27.bc6 bc6 28.Nc3 Ba3 29.Ne4 de4 30.Nd4 Bc1 31.Qc1 Na4 32.Qa1 Nc5 33.Qa5 Ne6 34.Nf5 Qd5 35.Qd5 Rd5 36.Kg2 Rf5 (37.Rd1 Rb8–+) 0–1. De Visser,Arno – Bergman,E, 1999.

6.c4 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.c4 Nbd7 6.Be2).

6.d3 e6 7.a3 a5 8.c3 Bd6 9.Nbd2 0–0 10.0–0 Qe7 11.Re1 Rfd8 12.d4 e5 13.de5 Be5 14.Ne5 Ne5 15.Bg4 Nfg4 16.Nf3 Nc4 17.Qe2 f5 18.h3 Nf6 19.Nd4 g6 20.Nf3 Ne4 21.Rad1 Re8 22.Qc2 Qf6 23.Rd3 ab4 24.ab4 Ra2 25.Rb1 Rea8 26.Qc1 Nb2 27.Rb2 Ra1 28.Rb1 Nc3! 29.Qc3 Qc3 30.Rc3 Rb1 31.Kh2 Ra2 0–1. Latka,Tadeusz – Sliwerski,Radoslaw (2170), Mistrzostwa KKSz Seniorow Krakow Poland, 2010.

6.d3 e6 7.a3 Bd6 8.Nbd2 h5 9.e4 Qc7 10.e5? Ne5–/+ 11.h3 Bf3 12.Nf3 0–0–0 13.Ne5 Be5 14.Be5 Qe5 15.0–0 g5 16.Qd2 g4 17.d4 Qf5 18.f3 Qg6 19.h4 gf3 20.Bf3 Ne4 21.Qf4 Nd6 22.Rf2 Qh6 23.Be2 f5 24.Qh6 Rh6 25.Bf3 Kd7 26.Kh2 Ne4 27.Re2 Ra8 28.Re3 a5 29.Rb1 ab4 30.Rb4 b5 31.a4 ba4 32.Ra3 c5 33.Rba4 Ra4 34.Ra4 cd4 35.Rd4 Kd6 36.Ra4 Rh8 37.Ra6 Ke5 38.Rc6 Ra8 (38...Rb8 39.c4–+) ½–½. Wredenberg,Daniel – Pleschke,Helmut, IECG, 2000.

6.d4 e6 7.a3 a5 8.b5 cb5 9.Bb5 Bd6 10.Nbd2 0–0 11.h3 Bh5 12.Be2 (12.c4 Ne4=) 12...Nb6 13.Ne5 (13.a4!?+=) 13...Be2–/+ 14.Qe2 Na4 15.Qb5 Qe8 16.Qb3 (16.Qb7?? Rb8 17.Qc6 Qc6 (17...Rb2?! 18.Qd6 Rc2 19.Qa6–/+) 18.Nc6 Rb2–+ (18...Nb2?! 19.Nb8 Rb8 20.Ke2–/+)) 16...Ra6 17.Bc1 (17.Qb7?? Rb6 18.Qb6 Nb6–+) 17...Rb6 18.Qd3 Be5 19.de5 Nd7 20.Qd4 Ndc5 21.0–0 Qc6 22.Nf3 Ne4 23.Bd2 Nac3 (23...Qc2?! 24.Rac1 Qa2 25.Be1+=) 24.Bc3 Nc3 25.Qd3 Rc8 26.Nd4 Qc7 27.f4 g6 28.g4 Ne4 29.Rab1 Rb1 30.Rb1 Qe7 31.g5 Rc3 32.Qb5 Nc5 (better is 32...Re3!? 33.Qb7 Qb7 (33...Qa3 34.Qa8 Qf8 35.Rb8 Qb8 36.Qb8 Kg7 37.Ne6 fe6 38.Qa7 Kg8 39.Qe3+–) 34.Rb7 Ra3–/+ (34...Rh3?! 35.Rb8 Kg7 36.Rb7 Rg3 37.Kh2=)) 33.Qa5= Re3 34.Rb5 Na6 The isolani on a3 becomes a target 35.Rb3 Re4 36.Rb7 Qc5 37.Qd8 Qf8 38.Qb6 Qa3 (38...Qc5 39.Qd8 Qf8 40.Qf8 Kf8 41.Nb5=) 39.Qd8 (39.Kg2!? Rf4 40.Qa7 Rd4 41.Qd4+=) 39...Qf8= 40.Qb6 Rf4?? (better is 40...Qa3 41.Kg2 Rf4+=) 41.c3+– Qa3? (41...Qa8+–) 42.Qd8 Qf8 43.Qd6 Re4 (43...Qc8 44.Qa6 h5 45.Nc6+–) 44.Qa6 Re5 (44...Qd8 45.Kf2 Rf4 46.Ke2 Rd4 47.Qd6 Re4 48.Kd3+–) 45.h4 (45.Qb6 Rg5 46.Kf2 Rh5+–) 45...Re4 (45...h5 46.Rc7 Kh7 47.Qc6+–) 46.Qb6 Kg7 (46...e5 47.Nc6 Rg4 48.Kh2 Rh4 49.Kg3+–) 47.Qe6! Kg8 (47...Re6 48.Ne6 Double attack) 48.Qb6 (48.Qd5 Re7+–) 48...Re8 (48...Re7 49.Kg2+–) 49.Qb4 (49.Qb5 Ra8 50.Qd5 Rd8+–) 49...Qg7 (49...Re4 50.Rb8 Re8 51.Re8 Qe8 52.Kf2+–) 50.Qd6 (better is 50.Nc6 Kh8 51.Qa5 Re1 52.Kf2 Re8+–) 50...Qe5 51.Qe5 Re5 52.Rb4 Kg7 53.Kf2 h6 54.Nf3 Re7 55.Rd4 Rc7 56.Rd3 (56.Rd5 Rc3 57.Rd7 hg5 58.Ng5 Kh6 59.Rf7 Kh5+–) 56...hg5 57.hg5 f6 58.Ke3 fg5 59.Kd4 Kf6 60.Kd5 Rd7 61.Ke4 Rd3?? (better is 61...Re7 62.Kd4 Kf5+–) 62.Kd3 g4 63.Ng1 Ke5 64.Ne2 1–0. Dragojevic,Mi (2130) – Jurkovic,A (2285), Zagreb Open, 2015.

6.d4 Bf3 7.gf3 (7.Bf3 e6 (7...Qb6 8.a3 a5 9.Nd2 e6 10.c4 Be7 11.0–0 0–0) 8.Bc3 Qb6 9.Nd2 Bb4 10.Rb1 Bc3 11.Rb6 ab6) 7...e6 (7...Qb6 8.a3 a5 9.Nd2 g6 10.c4 Bg7 11.c5 Qc7) 8.a3 (8.c3 Bd6 9.Nd2 0–0 10.f4 a5 11.a3 b5) 8...a5 9.b5 Qb6 (9...c5 10.c4 cd4 11.Bd4 Rc8) 10.a4 (10.Nc3 Bd6 11.bc6 Qc6) 10...c5 (10...Bb4 11.c3 Bd6) 11.Nd2 (11.c4 cd4) 11...cd4 12.Bd4 Bc5 13.Nb3 Bd4 14.Qd4 Qd4 15.ed4 Ke7 16.0–0 (16.Rg1 g6+=) 16...b6 17.c4 Rhc8 18.Nd2 Rc7 19.Rfc1 Rac8 20.c5 bc5 21.Nb3 cd4 22.Rc7 Rc7 23.Na5 Kd6 (23...Rc2!? 24.Nc6 Kd6+=) 24.Nc6= e5 25.a5 (better is 25.f4!?=) 25...Nh5–/+ 26.Nb4 Rb7?? (better is 26...Nf4 27.Bf1 Rc3–/+) 27.b6 (27.b6 Nb6 28.ab6–/+) 1–0. Seslavin,Maxim – Marjina,Arina, Novokuznetsk RUS, Winter Open, 2013. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 c6 4.e3 Bg4 5.Be2 Nbd7)

6.Ne5 Be2=+ 7.Qe2 Ne5 8.Be5 e6 9.a3 a5 10.b5= Bd6 11.Bd6 Qd6 12.bc6 bc6 13.c4 d4 14.d3 0–0 15.0–0 de3 16.fe3 Rfd8 17.d4 c5–/+ 18.Rd1 Qb6 19.Ra2 cd4 (Black gets deadly initiative) 20.Rb2 Qa7 21.Rbd2 e5 22.ed4 ed4 23.Rd3 Re8 24.Qf2 Rad8 25.h3 Ne4–+ 26.Qf4 Qc5 (27.Qc1 Rc8–+) 0–1. LeClair – Pommerel,Wim, email 4AMM–05, 1997.

6.h3 Bh5 7.0–0 Bf3 8.Bf3 e5 9.b5 cb5 10.Nc3 e4 11.Bg4 a6 12.f3 Bd6 (12...b4 13.Ne2+=) 13.fe4= de4 14.Bd7 Qd7 (worse is 14...Kd7 15.Ne4 Ne4 16.Qg4 Ke8 17.Bg7 Nd2 18.Bh8 Nf1 19.Rf1+– (worse is 19.Kf1 Qc8+=)) 15.Rf6 gf6 16.Ne4 0–0–0 (better is 16...Be7!?=) 17.Bf6+/– Rhg8 18.Bd8 Qd8 19.Qf1 Qe7 20.Nd6 Qd6 21.Qf7 Qg3? (better is 21...Rf8 22.Qg7 Kb8+–) 22.Qf5 Kd8 23.Qe4 Kc8 24.Rf1 Qh3 (24...h5+–) 25.Rf7 Kd8 (25...Rg2 26.Qg2 Qg2 27.Kg2 h6+–) 26.Qe7 Kc8 27.Qc7 1–0. Janek – Eduardo, internet, 2016.

6.0–0 Qc7

7.a3 e5 =.

7.c4 dc4 8.Bc4 e6 9.a3 Bd6 10.h3 h5 11.d4 (11.Bf6 Bf3 12.Qf3 Nf6=) 11...g5 (11...Bf3 12.Qf3 g5=) 12.Qb3 (better is 12.Nbd2!?=) 12...Bf3–/+ 13.gf3 g4 14.hg4? (14.e4!? Bh2 15.Kh1–/+) 14...hg4–+ 15.f4? (better is 15.Rd1–+) 15...Bf4 16.ef4 Rh3 17.Qc2 (17.Qg3 Rg3 18.fg3–+) 17...Qf4 18.Re1 Qf3 0–1. Mirada,Luciano – Perez,Mario Abel, Rubinstein, 2009.

7.d3 e5 8.a3 Bd6 9.g3 Bh3 10.Re1 h6 11.Nbd2 0–0–0 (11...0–0 12.c4+=) 12.e4 (12.c4 Kb8+=) 12...d4 (12...de4 13.de4 Ng4 14.Bf1 Bf1 15.Rf1+=) 13.c4 c5 (13...dc3 14.Bc3 g5 15.Nc4+=) 14.b5+= g5 15.a4 Be7 16.Bf1 Bf1 17.Rf1 Qd6 18.Kg2 Rdg8 19.Rh1 h5 20.h4 Ng4 21.hg5 Bg5 22.Ng5 Rg5 23.Nf3 Rg7 24.Nh4 Qf6 25.Qe1 Nf8 26.a5 Ng6 27.Ba3?? Nh4 28.Rh4 Qe7 29.Qe2+= Kd7 30.Rah1 Rgh7 31.Rh5!+– f5 32.Rh7 Rh7 33.ef5 Rh1 34.Kh1?? Qh7–+ 35.Kg2 Qf5 36.Qf3 Qh5 37.Qb7 Ke6 38.Qc8 Kf6 39.Qd8 Ke6 40.Qd5 Kf6 41.Qd8 Ke6 42.Qg8 Kd6 43.Qd5 Ke7+– 44.Bc5 Kf6 45.Qd6 Kf5 46.Qf8 Ke6 47.Qf3 Qh2 48.Kf1 Qh3 49.Ke2 Nh2 50.Qd5 Kf6 51.Qd8 Kf7 52.Qf8 Kg6 53.Qe8 Kh7 54.Qe7 Kg6 55.Qe8 Kh7 56.Qf7 Kh8 57.Bf8 Qg4 58.f3 Qg3 59.Qg7! Qg7 60.Bg7 Kg7 61.b6 1–0. Mauron,Regis (1615) – Coulet,Alexandre, 2012.

7.d3 e5 8.a3 Bd6 9.h3 Bh5 10.Nbd2 0–0 11.c4 Rfe8 12.c5 Bf8 (12...Be7 13.g4 (13.Re1 h6 14.Qb3 b6 15.cb6 ab6 16.Rac1 Bd6) 13...Bg6 14.Nh4= d4 15.Nc4 Nd5 16.Ng6 hg6) 13.Ng5 (13.g4!? Bg6 14.Nh4= e4 15.Ng6 ed3 16.Bd3 hg6; 13.Re1 h6 14.d4 e4 15.Nh4 Be2 16.Qe2 g6) 13...Bg6 (13...Be2 14.Qe2 b6 15.cb6 ab6 16.Rac1 h6) 14.d4 (14.Ngf3 h6= 15.Nh4 Bh7 16.Rc1 b6) 14...e4 (14...b6 15.Nb3+= (15.Ngf3 ed4 16.cb6 ab6) 15...ed4 16.cb6 ab6) 15.h4= h6 (15...h5 16.Nh3 Bf5) 16.Nh3 Be7 17.Nf4 Bh7 18.g4 (18.h5 Nf8=) 18...g5 (18...Nf8+=) 19.Nh3 (19.hg5!? hg5 20.Nh3+=) 19...gh4–/+ 20.g5 (20.Kh1!?–/+) 20...hg5–+ 21.Ng5 Ng4 (21...Bf5 22.Kh1 Nh7 23.Nh7 Kh7 24.Bg4–+) 22.Bg4–/+ Bg5 23.Bh3 Nf6 24.Kh1 Kh8 25.Rg1 Rg8 26.Rg2 Bh6–+ 27.Rg8 Rg8 28.Qe2 Qd8 29.Rg1 Bg6 30.Bc1 Bh5 31.Qf1 Ng4 32.Bg4 Bg4 33.Kh2 f5 34.Qe1 f4 35.ef4 Bf4 36.Kh1 Qf6 37.f3 ef3 38.Rf1 Bg3 39.Qe3 Bf4 40.Qf2?? Bd2 41.Qd2 Re8 42.Re1 Re1 43.Qe1 f2 44.Qf1 Qf3 (44...Qf3 45.Kh2 Qg3 46.Kh1 Bf3 47.Qg2 Qg2) 0–1. Santana,Cleiton Marino – Vieira,Paulo Cesar (1925), Sao Paulo BRA, Campeonato Amador, 2013.

7.d4 e6 8.a3 Bd6 9.Nbd2 b5 10.h3 Bh5 11.Bd3 Bg6 12.Be2 Be7 13.c3 Ne4 14.a4 Nd6 15.ab5 cb5 16.Qc1 0–0 17.Ne5 (17.Ra5 Rfb8+=) 17...Ne5–/+ 18.de5 Nc4 19.Nc4 dc4 20.f4 Rad8 21.Ra5 Qb6 22.Bf3 (22.Ra3 Bd3 23.Qd2 Be4–/+) 22...Rd7 (22...Bc5 23.Kh1–+) 23.Re1 Bh4 24.Rd1 Rfd8 (24...Rd1 25.Qd1 Rd8–/+) 25.Kh2? (25.Rd4 f6 26.Qa1 fe5 27.fe5 Bg3+=) 25...Bf2?? (better is 25...Rd1 26.Bd1 Bf2–+) 26.Rd6?? (better is 26.Rd4 Bh4 27.Qa1=) 26...Rd6–+ (26...Be3 27.Rb6 Bc1 28.Bc1 ab6 29.Ra3–/+) 27.ed6 Be3 28.Qa1 Bf4 29.Kh1 Qf2 30.Ra7 Qg3 31.Qg1 Bd6 32.Bc1 h6 33.Be3 Bf4 34.Bb6 Rb8 35.Bf2 Qg5 36.Qd1 Rd8 37.h4?? Qf6 38.Qe1 Be5 39.Bc6 Bc3 40.Qe3 Rd1 41.Kh2 Bd4 (41...Bd4 42.Qd4 Rd4 43.Ra8 Kh7–+) 0–1. Gimeno Royo,Jose Andres – Nasarre Abizanda,Tomas, Zaragoza Delicias op 6th, 2005. (=1.Nf3 Nf6 2.b4 c6 3.Bb2 d5 4.e3 Bg4 5.Be2 Nbd7 6.0–0 Qc7)

7.d4 Bf3 8.Bf3 (< 8.gf3 e6 9.a3 Bd6–/+) 8...e5 (8...e6 9.a3=+) 9.de5= Ne5 10.a3 Bd6 11.Nd2 0–0 12.g3 (12.Be2 Rfe8=) 12...a5=+ 13.Bc3 Nf3 (13...ab4 14.ab4 b5 15.Re1=+) 14.Nf3 (14.Qf3 Be5 15.Be5 Qe5=+) 14...Ne4 15.Bb2 (15.Qd4 Nc3 16.Qc3 Qb6=+) 15...ab4–/+ 16.ab4 Qb6 (16...Ra1 17.Qa1 f6 18.Nd4–/+) 17.Bd4 Qb5 (17...Qb4 18.Rb1 Qc4 19.Rb7–/+) 18.Rb1 (18.Qd3 Qb4 19.Rab1 Qa3 20.Rb7 Rfb8 21.Rb8 Rb8 22.Qa3 Ba3=) 18...Ra3 (< 18...Bb4 19.c3 c5 20.Be5+– (20.cb4?! cd4 21.Nd4 Qc4=)) 19.Nd2 Nc3 (19...Nd2 20.Qd2 Rfa8 21.Rfd1–/+) 20.Qg4=+ Ne2 21.Kg2 Nd4 22.Qd4 Qa4 23.Rfc1 Be7 24.Qb6 Qa8 25.Qc7 Bf6 26.Nb3 b6 27.Nd4 Rc8 28.Qb6+= Be7 29.Nf5 Bf8 30.b5 g6 31.Nd4+/– c5 32.Nc6 Qa4 33.Qb7 Re8 34.Qd7 Qe4+= 35.Kg1 Re3+– 36.fe3 Qe3 37.Kg2 Qe2 38.Kg1 Qe3 39.Kg2 Qe2 ½–½. Polzer,Hans – Knitl,Anton, Bayern Regionalliga NO, 1995.

7.h3!? Bf3 8.Bf3 =.

7.h4 e5 8.a3 =+.

7.h4 Bf3 8.Bf3 e5 9.a3 e4 (9...a5 10.ba5 Ra5 11.Nc3=+) 10.Bg4 (10.Be2 Bd6=+) 10...Ne5 11.Be2 h5 (11...Bd6 12.d4 Ng6 13.h5=) 12.g3 (12.f4 Ng6 13.Qe1 Ng4=) 12...Bd6 13.d3 (13.Bd4 Rg8=+) 13...Neg4 (13...0–0–0 14.Bd4=+) 14.Bf6 Nf6 15.Kg2 0–0–0 16.c3 (16.Nd2 Be5 17.d4 Bd6=) 16...Rdg8 (16...Rhe8 17.d4=+) 17.de4 (17.Qa4 b5 18.Qa6 Qb7 19.Qb7 Kb7=) 17...g5 (17...Ne4 18.Bh5 Bg3 19.Qg4 f5 20.Qf5 Kb8–/+) 18.ed5= gh4 (18...cd5 19.hg5 Nh7 20.Qd5 Ng5 21.Rd1+–; < 18...Nd5 19.e4 Nb6 20.hg5 Rg5 21.Qd4=) 19.dc6 hg3 (19...Qc6 20.Bf3 Qb6 21.Qd4 Qd4 22.cd4 hg3 23.e4=) 20.cb7= Kb8 21.Bf3 gf2 22.Kf2 Bg3 (22...Ng4 23.Ke2+=) 23.Ke2+/– Rd8 24.Qb3 Bh4 25.Rh1 Qg3 (26.Rh4 Qh4–+) 0–1. Woschkat,Karl_Heinz – Broner,G, IECG 7PSRR, 1996.

6.0–0 e6

7.a3 (--> 1.b4 c6 2.Bb2 d5 3.e3 Nf6 4.Nf3 Bg4 5.Be2 e6 6.a3 Nbd7 7.0–0).

7.b5 Bd6 8.a4 Qc7 9.h3 Bf3 10.Bf3 0–0 11.Be2 e5 12.c4 Ne8 (12...cb5!? 13.cb5 Rfc8=) 13.Qc2 e4 14.Rc1 Rc8 15.Nc3 Nef6 16.Ba3 (16.bc6 bc6 17.Rab1 Nb6+=) 16...Ba3= 17.Ra3 Qd6 18.Qb2 (18.Ra2 Qe6=) 18...Ne5 (18...dc4 19.Bc4 Ne5 20.Be2+=) 19.Nd1? (better is 19.bc6!? bc6 20.cd5 cd5 21.Nb5 Rc1 22.Qc1=) 19...dc4–/+ 20.Bc4 Nc4 (20...cb5!? 21.Bb5 Rc1 22.Qc1 a6+=) 21.Rc4+= cb5 22.Rd4 Qe6 23.Qb5 Rc1 24.Qf1 Qb6 25.Rc3 Ra1 26.Qe2?? (better is 26.d3=) 26...Qb1–+ 27.Kh2 Qd1 28.Qb5 Rb1 29.Qg5 h6 30.Qg3 Qh1# 0–1. Adam,Reimund (1605) – Raus,Michael (1735), Muensterland Verbandsklasse–B, 2007.

7.h3 Bf3 8.Bf3 Bb4 9.a3 Bd6 10.Nc3 0–0 11.d3 Qe7 12.Qd2 Rfe8 13.e4 Ne5 14.Qe2 Nf3 15.Qf3–/+ Nd7 16.ed5 ed5–+ 17.Qg4 (17...Nf6 18.Qh4–+). Whiterose – KrustytheClown, ChessWorld.net, 2005.

6.h3 Bf3=+

7.Bf3 e5 8.a3 Bd6 9.Be2 (9.0–0 Nb6=+) 9...a5 (9...0–0 10.0–0=+) 10.b5 0–0 11.c4 (11.0–0 Re8=+) 11...Qe7 (11...dc4 12.bc6 bc6 13.Bc4=+) 12.d4 (12.cd5 cd5 13.0–0 Rfc8=+) 12...ed4 (12...dc4 13.Bc4 ed4 14.Bd4=+ (< 14.Qd4 Be5 15.Qd2 Ne4–/+)) 13.Bd4 (13.Qd4? Be5 14.Qd2 Ne4–+) 13...c5 (13...dc4 14.Bc4 Ne5 15.Qa4=+) 14.Bb2= dc4 (14...Be5 15.Be5 Qe5 16.Nd2=) 15.Bc4 (15.Nd2 Be5 16.Nc4 Bb2 17.Nb2 Rfd8=) 15...Be5 (15...Nb6 16.Be2=+) 16.Nc3 Rad8 (16...Nb6 17.Be2=+) 17.Qc2= Nb6 (17...Rfe8 18.0–0=) 18.Be2 Nbd5 (18...Qe6 19.Rc1=) 19.Nd5 Rd5 20.Bf3 (20.Be5 Qe5 21.Rc1 b6=) 20...Bb2 21.Qb2 Rd6 (21...Ne4 22.Qc2 f5 23.Qc4=) 22.0–0 b6 (22...Rfd8 23.Rfd1=) 23.Qc2 (23.Rfd1 Rfd8=) ½–½. Vesson,Eric – Guidici,Gilles, corr FRA AJEC/3650, 1997.

7.Bf3 e5 8.a3 Bd6 9.Be2 Qe7 10.0–0 0–0 11.c4 dc4 (11...e4 12.Nc3 dc4 13.Bc4 Qe5 14.g3 Qf5 15.Qc2 Rae8; 11...h6 12.cd5 Nd5 13.Nc3 N7f6 14.Nd5 Nd5 15.b5 cb5; 11...g6 12.cd5 Nd5 13.Nc3 N7f6 14.Nd5 Nd5 15.b5 cb5; 11...Qe6 12.c5 Bc7 13.Nc3 e4 14.d4 ed3 15.Qd3 Ne5) 12.Bc4 b5 (12...a5 13.b5 Nb6 14.Be2 cb5 15.Bb5 Rfc8) 13.Be2 a5 14.Qc2 ab4 (14...e4 15.ba5 Rfc8) 15.ab4 Ra1 (worse is 15...Bb4 16.Ra8 Ra8 17.Qc6=) 16.Ba1 Nb8 (worse is 16...Bb4 17.Qc6 Rb8 18.Bb5+=) 17.d4 ed4 18.Bd4 Bb4 19.Bd3 h6 20.Qb2 Nbd7 21.Rc1 Bc5 22.Bc3 b4 23.Bd4 Rb8 24.Nd2 Qd6 25.Bf5 (25.Bf6 Nf6 (worse is 25...gf6 26.Bf5 Ba7 27.Bd7 Qd7 28.Ne4+/–) 26.Qc2 Bb6–/+) 25...Bd4 26.ed4 c5 27.dc5 Nc5 28.Rc4 Na4 29.Qc2 Nc3 30.Nb3 Re8 31.Bd3? (better is 31.Rc8–+) 31...Re1 32.Bf1 Ne2 (32...Nfe4!? 33.g3 Qa6 34.Kg2–+) 33.Qe2 Re2 34.Be2 g6 0–1. Tomasi,Stephane (1750) – Soalleiro,Jean (2050), Provence–ch Majeur op, 1997.

7.Bf3 e5 8.a3 h5 (8...Bd6 9.d3=) 9.d3 a5 10.c3 Qb6 11.Nd2 Nc5 Black prepares a4 12.Be2 Ne6 Black prepares the advance d4 13.Rb1 a4 (better is 13...Bd6!?=) 14.c4 d4 15.c5 Qd8 16.Nc4 Nd7 (16...Nd5 17.Bf3 (17.Bh5 de3 18.Bf3 ef2 19.Kf2 Ndf4+/–) 17...de3 18.Be5+/–) 17.Bh5 Qg5 18.Bf3 de3 (18...Be7 19.ed4 ed4 20.Bc1+–) 19.Ne3 (19.fe3 Be7+–) 19...Nf4? (19...Be7!?+/–) 20.Kf1 (20.g3 Ne6+–) 20...Qg6 21.Be4 Qh6 (better is 21...Qh5+–) 22.Nf5 (better is 22.g3 Ne6 23.Kg2+–) 22...Qe6+/– 23.Ng3 g6 (23...Nf6!?+=) 24.Ne2+/– Nh5 25.Bf3 Ndf6 (25...Nhf6!?+/–) 26.g4+– Ng7 27.Ng3 (27.Nc3 Qb3+–) 27...Nd5 (27...0–0–0 28.h4+–) 28.Bd5 (better is 28.d4+–) 28...Qd5+/– 29.Qe2 f6 30.d4 Ne6 (30...0–0–0 31.de5 f5 32.e6 Ne6 33.Bh8+/–) 31.de5 f5 32.Rd1 Qb3 33.Bc1 (33.gf5 gf5 34.Rd3 Nf4 35.Rb3 Ne2+–) 33...f4? (33...Rd8 34.Kg2 Nd4 35.Qd3+–) 34.Ne4 (better is 34.Rd3 Qb1 35.Kg2+–) 34...Rh3 35.Nf6 (35.Rh3!? Qh3 36.Ke1+–) 35...Kf7+/– 36.Rd7 (better is 36.Rh3 Qh3 37.Kg1 Bc5 38.bc5+/–) 36...Be7= 37.Rh3? (37.Qe4 Ng5 38.e6 Ne6 39.Bb2–/+) 37...Qh3–+ 38.Ke1 Rh8?? (better is 38...Qc3 39.Kd1 Rh8–+) 39.Rb7?? (better is 39.Qd2 Qb3 40.Re7 (40.Rb7?? Rh1 41.Ke2 f3) 40...Ke7 41.Qd7 Kf8 42.Qe8 Kg7 43.Qe7 Kh6 44.Ne4=) 39...Qc3 40.Qd2 (40.Bd2 Qa1 41.Qd1 Rh1 42.Ke2 Qd1 43.Kd3 Qb1 44.Kc3 Qb3) 40...Rh1 41.Ke2 Qe5 (41...f3) 42.Kf3 (42.Kd3 Qf6 (42...Kf6 43.Bb2 Re1 44.Be5 Re5 45.Qb2+–) 43.Bb2 Qh4–+) 42...Qf6 (42...Kf6?? 43.Bb2 Ng5 44.Kg2 Rh2 45.Kh2 Nf3 46.Kg2 Nd2 47.Be5 Ke6 48.Bf4+–) 43.Bb2 Rh3 44.Kg2 (44.Ke2 Qh4 45.Qd6 Rh1 46.Re7 Qe7–+) 44...Qh4 (44...f3 45.Kg1 Rh1 46.Kh1 Qh4 47.Kg1 Qg4 48.Kf1 Qg2 49.Ke1 Qg1) 45.Re7–+ Qe7 (45...Kf8 46.Rf7 Kg8 47.Rf8 Nf8 48.Qf4 Ne6 49.Qb8 Nd8–+) 46.Kh3= Ng5 47.Kg2 Qe4 48.Kf1 Qh1 49.Ke2 Qf3 50.Kf1 Qh3 51.Ke2 Qg4 52.Kd3 Qf3 53.Kc2 Qe4 54.Kc1 Qc4 55.Kb1 Qe4 56.Ka1 Qh1 (better is 56...Ke6!?=) 57.Ka2+/– Qd5?? (better is 57...Ke8+/–) 58.Qd5+– cd5 59.c6 (better is 59.b5 Ke7 60.Bf6 Kf6 61.b6+–) 59...Ne6?? (59...Ke6 60.b5 Nf7+–) 60.b5 (60.b5 Ke8 61.Bf6+–) 1–0. Souza,Kim Garcia De (1775) – Medeiros,Paulo Ricardo, Curitiba Brazil, Regional Championship, 2015.

7.Bf3 e6

8.a3 Bd6

9.0–0 0–0 10.Nc3 e5 11.Rc1 e4 12.Be2 Ne5 13.d3 Ng6 14.de4 Ne4 15.Ne4 de4 16.c4 Qe7 17.Qc2 f5 18.Rfd1 Rad8 19.Qb3 Kh8 20.Rc2 Ne5 (20...Bh2! 21.Kh2 Rd1 22.Bd1 Qd6 23.g3 Qd1=) 21.Rcd2+= Bb8 22.c5 Rd2 23.Rd2 Qg5 24.Kh1 (24.g3!?+=) 24...f4= 25.Qe6? (25.ef4 Qf4 26.Qe3–+) 25...f3?? (25...fe3 26.fe3 Qg3–+ (26...Qe3?! 27.Qe7 Qf2 28.Rd1=)) 26.gf3+= ef3 27.Bf1 Qh5 (27...h6!?+=) 28.Qe7+/– Qf5?? (better is 28...Qf7 29.Qf7 Nf7+– (29...Rf7?? 30.Rd8 Rf8 31.Rf8)) 29.Rd8 1–0. grasimenezes (2275) – cristero (2525), net–chess.com, 2013.

9.0–0 0–0 10.d3 a5 11.c3 Qe7 12.Nd2 b6 13.Nb3 Ne5 14.Nd4 (14.Be2 ab4 15.ab4 Ra1 16.Qa1 Qb7=) 14...c5–/+ 15.Re1?? (better is 15.Nb5–/+) 15...cd4–+ 16.ed4 Nf3 17.Qf3 b5 18.g4 h6 19.h4 Nd7 20.Qh3 Rfc8 21.g5 hg5 22.hg5 Qg5 23.Kh1 (23.Kf1 Qd2 24.Re2 Qh6 25.Qh6 gh6–+) 23...ab4 24.Rg1 (24.ab4 Qd2 25.Rab1 Qf2 26.Re6 fe6 27.Qe6 Qf7 28.Qd6 Re8–+) 24...Qf6 (24...Qd2 25.Bc1 Qf2 26.Bh6–+) 25.ab4 Ra1 26.Ba1 Qf2 0–1. grasimenezes (2275) – pierred (2740), net–chess.com, 2013.

9.0–0 0–0 10.d3 a5 11.Nd2 ab4–/+ 12.ab4 Bb4 13.Qe2 Qc7 14.e4 g6 (14...Qf4 15.Nb3 Bd6 16.g3=) 15.h4 Bd6 16.ed5 ed5 17.h5 Ra1 18.Ra1 Ne5 19.h6 (19.hg6 A) 19...Nf3 20.Nf3 (worse is 20.Qf3 fg6 21.Qh3 Qe7–/+) 20...Re8 21.Qd2+–; B) 19...fg6 20.c4 Qe7–/+) 19...Re8–+ 20.Qd1 (20.Bd4 Neg4 21.Bg4 Re2 22.Be2 Qd8–+) 20...Bf8 21.g4 (21.d4 Nf3 22.Qf3 Bh6 23.Qf6 Bd2–+) 21...Bh6 22.Be2? (22.Nb3–+) 22...Bd2 23.Qd2 Neg4 (23...Nfg4?! 24.Qf4 f5 25.Ra4–+) 24.f4 (24.Bf3 Qh2 25.Kf1 Ne3 26.Qe3 Re3 27.fe3–+) 24...Qb6 25.Kg2 (25.d4 Qb2 26.Rf1–+) 25…Qf2 (25...Qf2 26.Kh1 Qh2) 0–1. grasimenezes (2275) – pierred (2740), net–chess.com, 2013.

9.Nc3 c5 =.

9.d3 a5 10.ba5 Qa5 11.Bc3 Qc7 12.0–0 b5 13.Bb2 0–0 14.Nd2 e5 15.c4=+ e4 16.de4 dc4 17.Qc2 Ra4 18.Be2 Rfa8 19.Nb1 Ne4 20.Qe4 c3! 21.Nc3 Re4–+ 22.Ne4 Bh2 23.Kh1 Be5 24.Be5 Qe5 25.Rfd1 f5 26.Rac1? fe4 27.Rd7 Qb2 (28.Re1 Ra3–+; 27...Ra3?! 28.Rc6 Ra1 29.Bd1–+) 0–1. goco (1780) – pierre (2165), internet, 2007.

9.g4 0–0 10.0–0 –/+.

9.g4 h6 10.Bg2 (10.Nc3 0–0=+) 10…0–0 (10...a5 11.ba5 Ra5 12.f4–/+) ½–½. Palac,Mladen (2505) – Rosandic,Denis (2330), Pula PCA op, 1994.

5.Be2 e5

6.a3 Bd6 7.0–0 =+.

6.a3 Bd6+= 7.Ng5 Be2 8.Qe2 0–0 9.0–0 e4 10.f4 h6 11.Nh3 c5 12.b5 Qb6 13.a4 a6 14.c4 ab5 15.cb5 d4 16.Kh1 d3 17.Qd1 c4 18.Nc3 Nc5 19.Ba3 Nb3 20.Bd6 Qd6 21.Rb1 Nd5 (21...Rfe8 22.Nf2 Ra7–/+) 22.Nf2? (better is 22.Ne4!? Qe7 23.Ng3+=) 22...f5 (22...Nc3 23.dc3 f5 24.Rb3 cb3 25.Qb3 Kh8 26.Ra1–+) 23.g4 Nc3 24.dc3 d2 (better is 24...Qc5!? 25.gf5 Qe3–+) 25.gf5–/+ Rf5 26.Ne4 (26.Rg1 Qd5–/+) 26...Qd3 27.Rf3?? (better is 27.Qf3–/+) 27...Qe4–+ 28.Kg2 (28.Kg1 Rd5 29.Rf1 Qe3 30.Kg2 Ra4–+) 28...g5 (better is 28...Rd5–+) 29.fg5 (29.Kh3–+) 29...Rf3 (29...Rg5 30.Kh1 Rf8 31.h3 Rf3 32.Qf3 Qf3 33.Kh2 Qg2) 30.Qf3 Qf3 31.Kf3 Rd8 32.Rd1 Rd3 33.Ke4 Rc3 34.Kd5 Rc1 35.Rd2 Nd2 (35...Nd2 36.Kd4 hg5–+) 0–1. elsh1403 – skogsrune (1710), 2013.

6.Ne5!? Be2 7.Qe2 Bb4 8.Qb5 +=.

6.Ne5 Be2 7.Qe2 Bb4 8.Nd7 Qd7 9.a3 Ba5 10.Nc3 0–0–0 11.Rb1 Rhe8 12.0–0= Ne4 13.Qd3 Bc3 14.Bc3+= Nc3 15.dc3 g6 16.Rb2 f5 17.Rfb1 b6 18.Qa6 Kb8 19.a4 Qc6 20.a5 Rd6 21.ab6+= cb6 22.Ra2 Qb7 23.Qb5 Ree6 24.Rba1 h5 25.h4 f4 26.ef4 Re4 27.g3 Rc4 28.Qe8+– Rc8 29.Qe5 Rcc6 30.f5 gf5 31.Qf5 Rc3?? 32.Qf8 Kc7 33.Ra7 Qa7 34.Ra7 Kc6 35.Qc8 (35...Kb5 36.Qc3+–) 1–0. ncc_1701 – I need chocolate..., ChessWorld.net, 2005.

6.Ne5+= Ne5 7.Be5 Be2 8.Qe2 Bb4 9.Qb5+– c6? (better is 9...Nd7 10.Bg7 Rg8 11.Qb4 Rg7 12.Qb7 Nb6+–) 10.Qb4 Ng4 (10...Qe7 11.Qe7 Ke7+–) 11.Qg4 1–0. kupovgeorge (1760) – stameni, gameknot.com, 2014.

6.Ne5+= Ne5 7.Be5 Be2 8.Qe2 c6!? +/–.

6.Ne5 Ne5 7.Be5 Be2 8.Qe2 Bd6 9.Bd6 Qd6 10.a3 0–0–0 11.0–0 h5 12.d4 g5 (12...Ng4!? 13.g3 Qe6+=) 13.Nd2+/– Ng4 14.g3 (14.Nf3!?+/–) 14...f5+= 15.Nf3 Rdg8 (15...h4 16.h3 Nf6 17.Ng5 hg3 18.Qf3 gf2 19.Rf2= (worse is 19.Qf2 Kb8–/+)) 16.c4+/– c6 (16...h4!? 17.Qc2 Rf8+=) 17.cd5 cd5 18.Rac1 Kb8 19.Rc5 (19.Qc2+–) 19...b6? (19...h4 20.gh4 Rh4 21.Rfc1+/–) 20.Rc2?? (better is 20.Qb5 h4 21.Rd5+–) 20...h4= 21.Ne5 hg3 22.fg3 Rh2 23.Qh2 Nh2 24.Rh2 f4 25.ef4 gf4 26.g4 Qf6?? 27.Rhf2 Qh4+= Attacking the isolated pawn on g4 28.Rf4?? Qg3 29.Kh1 Rh8 0–1. bratek55 – topnotchcon (1735), 2012.

6.Ne5+= Ne5 7.Be5 Bf5 8.b5 Bc5 9.0–0 0–0 10.d4 Bb6 (10...Bd6 11.Nc3+/–) 11.a4 c6 12.a5 Bc7 13.Bc7 (13.a6!? ba6 14.bc6 Re8+–) 13...Qc7 14.b6 (better is 14.Nc3!?+/–) 14...ab6+= 15.ab6 Qb6 16.Ra8 Ra8 17.Nc3 Qb2 18.Qd2 (better is 18.Bd3!? Bd3 19.Qd3+=) 18...Qc2–/+ (18...Bc2?! 19.Bd1 Ra3 20.Nd5 Nd5 21.Qc2 (worse is 21.Bc2 Ra2 22.e4 Nc3–/+) 21...Qc2 22.Bc2+=) 19.Qc2 Bc2 20.Bf3 Ra3 21.Ne2 Bd3 22.Rd1 h6 23.Nf4 Be4 24.h3 Bf3 25.gf3 Rb3 26.Ra1 Kh7 27.Ra7 g5 28.Ne2 Kg6 29.Ng3 Nd7 30.Kg2 Nf8 31.Ra8 Ne6 32.Rg8 Kh7 33.Re8 b5 34.Re7 (34.Rc8 Rc3–/+) 34...Kg6–+ 35.Rd7 b4 36.Rd6 (36.Rb7 Rb2–+) 36...Rc3 37.Ne2? (37.f4 gf4 38.Ne2 fe3 39.Nc3 bc3 40.fe3–+) 37...Rc2 38.Kf1 (38.Ng3–+) 38...b3 39.f4 (39.Rd7 b2 40.Rb7 Rc1 41.Kg2 b1Q 42.Rb1 Rb1–+) 39...gf4 (better is 39...b2 40.f5 Kf5–+) 40.Nf4 Kf5 41.Ne6 (41.Nd3 Ke4 42.Ne1 b2 43.Nc2 b1Q 44.Ne1 Qb5 45.Kg2 Qe2–+) 41...fe6 (better is 41...b2!? 42.Ng7 Kg5 43.h4 Kh4 44.Kg2–+) 42.Rd8 b2 43.Rf8 Ke4 44.Rf4 (44.Rb8 Rc1 45.Ke2–+) 44...Kd3 45.Rg4 b1Q 46.Kg2 Qb2 (46...Qe1 47.Rf4 Rc1 48.Rg4 Ke2 49.Kh2 Qh1 50.Kg3 Rg1 51.Kh4 Rg4 52.Kg4 Qg2 53.Kf4 Qg5) 47.Rf4 c5 (47...e5 48.de5 Qe5 49.Rd4 Ke2 50.Rf4 Rc4 51.Kh2 Rf4 52.h4 Rh4 53.Kg2 Qg7) 48.dc5 Rc5 49.Rd4 Ke2 50.Rf4 Rc4 51.Rf3 Rh4 52.Kg3 Qb4 53.Rf7 Rh5 54.Rf4 Rg5 55.Kh2 Qe1 56.h4 Qg1 57.Kh3 Qg2 0–1. surmavlod – klabay, 2013.

5.Be2 e6

6.0–0 Bb4 7.a3 Ba5 8.c4 dc4 9.Bc4 0–0 10.h3 Bh5 11.Be2 c5 12.Nc3 Bc3 13.Bc3 a6 14.d4 b5 15.dc5 Nc5 16.Rc1 Qd1 17.Rfd1=+ Nfe4 18.Bb4 Rac8 19.g4 Bg6 20.Ne5 Rfe8 21.f3 Nb3? 22.Rc8+– Rc8 23.Nc6 Nf6?? 24.Ne7 Kh8 25.Nc8 h6 26.Ne7 Bh7 27.Rd8 Ng8 28.Bd3 Bd3 29.Ng8 Kh7 30.Rd3 Kg8 31.Rb3 1–0. Whiterose – I need chocolate..., ChessWorld.net, 2005.

6.0–0 Bb4 7.d3 0–0 8.Nbd2 c6 9.c4 Qc7 10.a3 Bd6 11.cd5 ed5 12.h3 Bh5 13.Nd4 Bg6 14.Bg4? (better is 14.f4 h6 15.Rc1–/+) 14...Ng4–+ 15.hg4 Bd3 16.Re1 Nc5 17.N2b3 Bh2 18.Kh1 Ne4 (18...Ne4 19.Qf3 Be5–+) 0–1. Galayko,Konstantyn – Coleman,Michael (1725), TH–M–2684.1 IECC, 2006.

6.a3 Nb6 7.0–0 Bd6 =.

6.a3 Nb6 7.c3 Nc4 8.Bc4 (8.Bc1!?+=) 8...dc4–/+ 9.h3 Bf3 10.Qf3 Qd5 11.Qd5 Nd5 12.0–0 0–0–0 13.a4 Kb8 (13...a5 14.Na3 ab4 15.Nc4 bc3 16.dc3=) 14.Rd1 (14.Na3 c5 15.bc5 Bc5 16.Nc4 Rhe8+/–) 14...Nf6 (better is 14...a5!?=) 15.Na3+/– a5 16.ba5 (better is 16.Nc4 ab4 17.Ne5+/–) 16...Ba3+= 17.Ba3 Ka7 (better is 17...Ne4!?+=) 18.Be7+= Rd7 (18...Rd3 19.Bf6 gf6 20.Rab1+=) 19.Bf6+/– gf6 20.Rab1 Rhd8 21.Rb2 (21.Rb4 Rd2 22.Rd2 Rd2 23.Rc4 Rd7+/–) 21...Rd5 (21...Ka6 22.Rb4 Rd2 23.Rd2 Rd2 24.Rc4+=) 22.Rdb1 Rb8 23.Kf1 Ra5 24.Rb4 Rd5 25.Ke1 b6 26.Rc4+– c5 27.d4 f5 28.g3 h5 29.h4 Rc8 30.Rb5 Ka6 31.Kd2 f6 32.f4 Rcd8 33.Ke2+– cd4 34.Rd5 Rd5 35.ed4 Rd6 36.Ke3 b5 37.ab5 Kb5 38.Rc5 Kb6 39.c4 Rd8 40.Rb5 Kc6 41.Ra5 Rb8 42.Ra6 Kd7 43.Ra7 Kd6 44.Ra6 Kd7 45.Ra3 Rb1 46.c5 Kc6 47.Rd3 Kd5 48.Rd2 Rb3 49.Kf2 Rc3 50.Kg2 Kc4 51.c6 Kd5+= 52.c7 Rc7 53.Kf2 Rc4 The isolani on d4 becomes a target 54.Ke3 Rc1 55.Rd3 Re1 1–0. Fournier,Frederic (1770) – guest33693 (1885), Active (5+7), 2008.

6.a3 Nb6 7.Ne5 Be2 8.Qe2 c5 9.bc5 Bc5 10.d4 (10.Qb5!? Nbd7 11.Nd7 (11.Qb7? Rb8 12.Nf7 Kf7 13.Bf6 Rb7 14.Bd8 Rd8–+) 11...Nd7 12.Bg7= (12.Qb7? Rb8 13.Qa6 Rb2–+)) 10...Bd6 11.Nd2 0–0 12.0–0 (12.c4 Na4 13.Nd3 b6+=) 12...Na4 13.Rfb1 (13.Qb5 Qe8 14.Qb3 b5+=) 13...a6 (13...Qc7 14.c4–/+) 14.c4= dc4 (14...Rc8 15.e4=) 15.Ndc4 b5 White creates threats along the open c–file 16.Nd6 Qd6 17.Rc1 Rfc8 (17...Rac8 18.Rc8 Rc8 19.Rc1 Rc1 20.Bc1=) 18.h3 (18.Rc2 Nb2 19.Rc8 Rc8 20.Qb2 Qc7=) 18...h6 19.Rc2 Rc2 (19...Nd7 20.Rac1 Rc2 21.Rc2 Nb2 22.Qf3=) 20.Qc2 Nb2 (20...Nd7 21.Nd7 Qd7 22.Rc1+=) 21.Qb2 Rc8 (21...Nd7 22.Rc1=) 22.Rc1 Rc1 (22...Rc7 23.a4 Rc1 24.Qc1 ba4 25.Qc8 Qf8 26.Qa6+=) 23.Qc1+= a5 Black prepares the advance b4 24.Qc8 Qf8 25.Qc3 b4= ½–½. Gross,Wilhelm – Merten,Rainer, xiii/01, 1986.

6.a3 Bf3 7.Bf3 Bd6 8.0–0 c6 9.d4 Qc7 10.g3 h5 11.Nd2 h4 12.Qe2 0–0–0 (12...Nb6!?+=) 13.c4+= hg3 14.fg3 Bg3 (14...Kb8 15.Rac1+=) 15.hg3+= Qg3 16.Qg2 Qh4 (16...Qc7 17.cd5 ed5 18.Rf2+=) 17.Rf2 (17.Be2!?+/–) 17...Rh6+= 18.Kf1 g5 19.Ke1 (19.Bd1 Rdh8 20.b5 g4 21.bc6 bc6 22.cd5 ed5=) 19...g4+= 20.Be2 g3 21.Rf3 (21.Rf1 Nb6+=) 21...Rg8 22.Bf1?? (22.cd5 Qh1 23.Bf1 ed5 24.Bc3–/+ (24.Rg3?? Qh4 25.Qh3 Qg3 26.Qg3 Rg3–+)) 22...Qg5–+ 23.cd5 ed5 24.Qg1 g2 25.Bg2 Qg2 26.Qg2 Rg2 27.Rf2?! (27.Bc3–+) 27...Rf2 28.Kf2 Rh2 29.Ke1 Ng4 30.Rb1 Ne3 31.Nf1 Nf1 (31...Nf1 32.Bc1 Ne3–+) 0–1. gdriessen (1875) – queensservant (1715), gameknot.com, 2012.

6.b5 a6 7.a4 ab5 8.ab5 Bd6 9.c4 (9.Ra8 Qa8 10.Nc3 0–0+=) 9...c5 (9...Ra1 10.Ba1 dc4 11.Bc4+=) 10.0–0 0–0 (10...Ra1 11.Ba1 Qc7 12.h3=) 11.d3 (11.Ra8 Qa8 12.d3 Rd8=) 11...Qc7 12.Nbd2 Ra1 13.Qa1 (13.Ba1!? Ra8 14.h3 Bf3 15.Nf3 dc4 16.dc4=) 13...Bh2!–/+ 14.Kh1 (14.Nh2 Be2 Pinning (14...Be2 Deflection)) 14...Bd6 15.Qa7 h6 (15...Nb6 16.Ra1–/+) 16.Rc1 (16.Ra1 Rd8–/+) 16...Nb6 17.Qa2 Ra8 18.Qb3 Nbd7 19.cd5 ed5 20.Kg1 b6 21.Bf1 Bh5 22.Qc3 Bg4 23.Nd4 (23.Qb3 Qd8 24.Be2–+) 23...cd4 (23...Ne5 24.Nc2–+) 24.Qc7–/+ Bc7 25.Rc7 Ra2 26.Bc1 Ra5 27.Nb3 Rb5 28.Nd4 Rb1 29.f3 Nc5 30.Ba3 Na6 31.Ra7= Nc5 32.fg4 Nd3 33.Nc6 Ng4 34.Ne7 Kh7 35.Nf5 Kg6 36.Ne7= Kh7 37.Nd5 Nde5 38.Bd6 Nc4= Attacks the isolani on e3 39.Bf4?? g5 40.Rf7? Kg6 1–0. Kreuzer – Heuer, 1990. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nf6 4.e3 Nbd7 5.Be2 e6 6.b5)

6.b5 Bb4 7.0–0= 0–0 8.a3 Bd6+= 9.h3 Bf3 10.Bf3 a6 11.a4 c6 (11...ab5 12.ab5 Ra1 13.Ba1+=) 12.Be2 (12.Nc3 Ne5=) 12...Qe7 (12...ab5 13.ab5 Ra1 14.Ba1+=) 13.f4 (13.Nc3 e5+=) 13...Ne4 14.Qe1 ab5 15.ab5 cb5 (15...Bb4 16.Bd3+=) 16.Bb5 Ra1 17.Ba1 Ra8 (17...Bb4 18.Bd4+=) 18.Nc3= Nef6 19.Bb2 (19.Qg3 Nb6=) 19...Nb6 (19...Ba3 20.Ba3 Ra3 21.Qh4=) 20.Qg3 Nh5 (20...Ba3 21.Ba3 Ra3 22.Rb1=) 21.Qf3 Nf6 22.Ra1 (22.Rb1 e5=) ½–½. Kern,Michael – Koolsbergen,Nico, compuserve, 1998.

6.b5 Bb4 7.0–0 0–0 8.a4 Qe7 9.c4 dc4 10.Bc4 Rfd8 11.Be2 e5 12.d4 e4 13.Nfd2 Be2 14.Qe2 Nb6 15.Rc1 a6 16.a5 Nbd5 17.Nb3 ab5 18.Qb5 c6 19.Qc4 Bd6 20.h3 Nb4 21.Nc3 Nd3 22.Rc2 Bb4 23.Ne2 (better is 23.Rd1!? Nd5 24.Nd5 cd5 25.Qb5–/+) 23...Nd5–+ 24.Bc3 Qf6 25.Rf1 b5 26.ab6 Nb6 27.d5 Qf2! (27...Nc4?! 28.Bf6 Na3 29.Bd8 Nc2 30.Bc7 cd5 31.Nf4 Nf4 32.Bf4–/+) 28.Rf2 Nc4 29.Bb4 Ne3 30.Rc6 Nb4 31.Rc7 Nbd5 32.Rcf7 Nf6 33.R7f6 Rd1 (33...gf6?! 34.Rf6 Rd1 35.Kf2–+) 34.Kh2 gf6 35.Ng3 f5! 36.Nc5 (36.Nf5 Nf1 Combination) 36...h5! 37.Ne6 (37.Nh5 Nf1 Combination) 37...h4 38.Nf5 (38.Nf4–+) 38...Nf5 0–1. festis (1905) – marekt (2145), gameknot.com, 2015.

6.b5 Bb4 7.0–0= 0–0 8.h3 Bf3 9.Bf3 a6 10.ba6 Ra6 =.

6.b5 Nb6 7.a4 Bc5 8.0–0 0–0 9.d4 Bb4 10.c3 Bd6 11.Nbd2 h6 (11...Ne4 12.h3 Bf3 13.Nf3=) 12.a5+= Nbd7 13.c4 (13.a6 ba6 14.Ra6 Qb8+=) 13...dc4 (13...c5!?=) 14.Nc4+= Bb4 15.Nfe5 (15.a6!? b6 16.Ne1 Be2 17.Qe2+/–) 15...Be2+= 16.Qe2 Ne4? (16...a6!? 17.ba6 Ra6+=) 17.Qc2 (17.a6!? Ne5 18.Ne5+– (18.de5?! ba6 19.Rfd1 Qe8+=)) 17...Ne5+/– 18.Ne5 Nf6? (18...Qd5 19.a6 Rab8 20.f3+–) 19.Qc4?? (better is 19.a6 Qc8 20.ab7 Qb7 21.Nc6+–) 19...Bd6+= 20.Nf3 (20.a6 ba6 21.Ra6 Ne4+/–) 20...Re8 (20...a6 21.Ne5=) 21.Qd3 c6 22.bc6 bc6 23.e4 Bc7 24.Rfc1 Ba5? (better is 24...Rb8!? 25.Rab1 Qd7+=) 25.Rc6 Bb6 26.Ne5 Rc8 27.Rc8 Qc8 28.Rc1 Qb7 29.f3 Rc8 30.Rc8 Qc8 31.g4 Nd7 32.Nc4 Qa6 33.Kg2 f6 34.h4 e5? (better is 34...Bc7!? 35.Qc2 Qc6=) 35.de5+/– Ne5?? (better is 35...fe5 36.Qd5 Kh7+–) 36.Ne5+– Qd3 37.Nd3 a5 38.Kf1 Kf7 39.Ke2 Ke6 40.Kd2 Kd6 41.Kc3 Kc6 42.Kc4 Kb7 43.Kb5 Kc7 44.Bc3 Kb7 45.Ba5 Ba5 46.Ka5 Kc6 47.Kb4 Kd6 48.Kc4 Kc6 49.Kd4 Kd6 50.f4 White intends e5 50...Ke6 51.h5 Kd6 52.e5 Ke6 53.Nc5 Ke7 54.Kd5 fe5 55.fe5 Ke8 56.Ke6 Kf8 57.Nd7 Ke8 58.Nc5 1–0. CountFromHolland – AidyT, playchess.de, 2004.

6.b5 c5 7.c4 Nb6 8.cd5= ed5 9.Qc2 Bd6 10.0–0 Qe7 11.a4 Nbd7 12.d4 c4 13.Ba3 Ne4 14.Bd6 Qd6 15.Ng5 Bf5 16.Ne4 Be4 17.Qd2 Bb1 18.Rfb1 f5 19.f3 Nf6 20.Bd1 0–0 21.Bc2 g6 22.Re1 Rfe8 23.Qc3 Rac8 24.Re2 Re6 25.Rae1 Qe7 26.Qa5 b6 27.Qc3 h5 28.Bb1 Kh7 29.Bc2 Qe8 30.e4 fe4 31.fe4 de4 32.d5 Nd5= 33.Qd4 Nf6 34.Be4 Ne4 35.Re4 Re4 36.Re4 Qf7 37.Rf4 Qc7 38.Qe4 c3 39.Rf6 Qc5 40.Kh1 Rg8 41.Rc6 Qf2 42.h3 Qg3 43.Qf3 Qf3 44.gf3 Rf8 45.Rc3 Rf7 46.Kg2 Kh6 47.Kg3 Rd7 48.Rc4+= Kg5 49.Rf4 Kh6 ½–½. Alekseev,Vadim (2400) – Yagupov,Igor (2415), RUS–Cup Minsk, 2001.

6.b5 c6 7.a4 a5 (7...Bd6 8.0–0=) 8.c4 (8.Nc3 Bd6=) 8...Bb4 (8...dc4 9.Bc4 Bd6 10.h3+=) 9.0–0= Qc7 (9...dc4 10.bc6 bc6 11.Qc2=) 10.Nc3 (10.cd5 cd5 11.Na3 Bf3 12.Bf3 0–0=) 10...0–0 (10...dc4 11.Bc4 0–0 12.bc6 Qc6 13.Be2=) 11.cd5 cd5 12.Rc1 (12.Na2 Be7=) 12...Qd6 13.Nd4 (13.d3 e5=) 13...Be2 14.Qe2 (14.Nde2 Rac8+=) 14...Nc5 (14...Nb6 15.Nb3+=) 15.Ra1 (15.Nf3 Rfc8+=) 15...e5 Black gets deadly initiative 16.Nc2 (16.Nf3 e4 17.Nd4 Nd3–/+) 16...Rfc8 (16...d4 17.Ne1–/+) 17.f4 (17.d4 Bc3 18.Bc3 Na4 19.Ra4 Rc3 20.de5 Qe5+=) 17...Nb3 (17...e4 18.Rfb1–/+) 18.fe5 (18.Nb4 Na1 19.fe5 Qb4 (19...Qe5? 20.Nd3 Qg5 21.Ba1+–) 20.Ba1 Ne4=) 18...Qe5 19.Nd1 (19.Rad1!?+=) 19...Qh5–/+ 20.Qh5 Nh5 21.Nb4 ab4 (21...Na1? 22.Nd5 Nb3 23.Ne7 Kf8 24.Nc8 Rc8 25.d3+–) 22.Ra2 Rc2 (22...Rc2 23.a5 Nd2–/+) 0–1. Bohley,Donald – Vehre,John, corr USA, 1983.

6.b5 Be7 7.0–0 0–0 8.a4 c6 9.d3 Qc7 10.Nbd2 Rac8 11.c4 e5 12.h3 Bf3 13.Nf3 dc4 14.dc4 c5 (14...e4!? 15.Nd4 g6+=) 15.Qc2+/– Rfe8 16.Nd2 Bf8 17.Bf3 g6 18.g4 Red8 19.g5 Ne8 20.Rfd1 Bg7 21.a5 Nf8 22.Ne4 Ne6 23.h4 Qe7 24.Rd5 Rd5 (24...a6 25.ba6 ba6 26.Rb1+/–) 25.cd5+– Nd8 (better is 25...N6c7!? 26.Qc5 Qc5 27.Nc5 Nb5 28.Nb7 Rb8+–) 26.Bg4 Rb8 27.d6 Nd6 28.Qc5 Nf5 (28...Nc8 29.Qd5 Ne6+–) 29.Qa7 Rc8 30.a6 ba6 (30...Qd7 31.Qb6 ba6+–) 31.Qe7 (31.Qe7 Ne7 32.Bc8 Nc8 33.Ra6+–) 1–0. pierred (2825) – mgilbert (2395), net–chess.com, 2015.

6.b5 Be7 7.0–0 0–0 8.a4 Rc8 9.c4 (9.a5 a6 10.Nc3 ab5 11.Nb5 Ra8+=) 9...dc4 10.Qc2 ½–½. Reimer,Karl – Mueller,Markus (2070), Hagenbach Pfalz op, 1998.

6.b5 Be7 7.0–0 0–0 8.a4 h6 9.h3 Bf5 10.d3 =.

6.b5 Bf3 7.Bf3 Bd6 8.0–0 =.

6.Bc3?! Ne4! 7.a3 Nc3 8.Nc3 a5 9.b5 a4 10.d4 Bd6 11.0–0 0–0 (11...Bf3 12.Bf3 h5 13.e4 (13.Bh5?? Qh4) 13...Qh4 14.h3=) 12.Nb1 Qf6 13.Nbd2 Qh6 14.h3 Bf5 15.c4 Be7 16.c5 Qg6 17.Kh1 e5 18.Rc1 ed4 19.ed4 Qh6 20.Nb1 Rfe8 21.Nc3 c6 22.bc6 bc6 (22...Qc6? 23.Bb5 Qe6 24.Re1) 23.Na4 Bd8 24.Ng1 Bc7 25.Rc3 Re4 26.Bf3 Re7 27.Nb2 Ba5 28.Re3 Re3 29.fe3 Rb8 30.Qa4 Rb2 31.Qa5 Qe6 (31...Qe3? 32.Re1! Qg5 (32...Qe1? 33.Qe1) 33.Re8 Nf8 34.Qa8+–) 32.Qd8 Nf8 33.Re1 Bd3 34.a4 Ra2 35.a5 h6 36.Qa8 (36.Bg4 f5 37.Bh5 Qd7) 36...Rb2? (36...Qg6 A) 37.e4? de4 38.Be2 (38.Bd1?? Qg2) 38...Ra3; B) 37.Qe8) 37.Ra1! Bc4 38.a6 Bd3 39.a7 1–0. Bakkers,M – Gross,Gerald, email b4–01–03 (Plock), 2002.

6.a3 a5

7.0–0 ab4 8.ab4 Bb4 9.d3 Ra1 10.Ba1 b5 11.Nbd2 0–0 12.Nb3 c6 13.Ne5 Ne5 14.Be5 Be2 15.Qe2 Bd6 16.Bf6 Qf6 (16...gf6?! 17.Qh5+=) 17.Nd4 Qh6 18.g3 Rc8 19.Ra1 g6 (better is 19...Bc5!?–/+) 20.Ra6+= Qf8 21.Rc6 Rc6 22.Nc6 Qa8 23.Nd4 Qa1 24.Kg2 b4 25.Nb3 Qb1 26.Qd2 Qb2 27.Qc1 Qc3 28.Nd4 Be5 29.Nf3 b3 30.Ne5 b2 31.Qb1 Qe5 32.d4 Qb8 33.h4 Qb4 0–1. Hal1958 – Michael_Lloyd, playchess.de, 2004.

7.b5 Bd6

8.c4 0–0 9.cd5 ed5 10.Nd4 Ne5 11.d3 Qd7 (11...Be2 12.Qe2 Re8 13.0–0=) 12.h3 (12.f3 Bf5=) 12...Be2+= 13.Qe2 c5 14.bc6 bc6 15.Nf3 Nf3 16.Qf3 Ne8 17.0–0 f5 (17...Rb8 18.Bd4+=) 18.Nd2= Nf6 (18...Rb8 19.Rab1=) 19.Rfc1 Rab8 20.Bf6 (20.Bd4 Qe6=) 20...Rf6+= 21.Rc3 (21.Rc2 a4=) 21...f4 22.d4 Rb2 23.Qd1 Rd2 (better is 23...fe3 24.Re3 Bf4+=) 24.Qd2+/– f3 25.e4 (25.Qd3 Rg6 26.g4 Rh6=) 25...de4= 26.Qe1?? (better is 26.Qa2 Kf8 27.Qc2+=) 26...Rg6–+ 27.Qe4 Rg2 28.Kf1 Bh2 (28...Qh3 29.Rf3 Rg3 30.Ke2 Rf3 31.Qf3 Qe6 32.Qe3+=) 29.Qf3 Rg1 30.Ke2 Ra1 31.Rc6 (31.Qg4 Ra2 32.Kf1 Qd5 33.Qc8 Kf7 34.Qb7 Ke8 35.Qc8 Ke7 36.Re3 Kf7 37.Qe8 Kf6 38.Rf3 Kg5–+) 31...Qe7 (better is 31...Qe8 32.Qe3 Qc6 33.Qb3 Kh8–+) 32.Qe3 Ra2 (32...Kf7 33.Qe7 Ke7 34.Rc3–+) 33.Kf1 Qe3 34.fe3 Ra3 35.Kg2 Ra2 36.Kf3 a4 37.Ra6 (37.Rb6 Ra1–+) 37...a3 (37...Bg1 38.Ra8 Kf7 39.Ra7 Kg6 40.Ra6 Kh5 41.Ra7–+) 38.Ke4 Kf7 39.Kd5 Bg1 40.Ra7 Kg6 41.Ra6 Kf7 42.Ra7 Kg6 43.Ra6 Kg5 44.Ke6 Be3 45.d5 Bc5 46.Ra5 Re2 47.Kf7 Re7 48.Kf8 Bd6 49.Ra6 Ra7 50.Rd6 a2 (50...a2 51.Rc6 a1Q 52.h4 Kh5 53.Rg6 Qf1 54.Kg8 Qf7 55.Kh7 Qg6 56.Kg8 Ra8#) 0–1. Santasiere,Anthony – Kramer, Pittsburgh, 1946. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Bb2 Nbd7 5.Be2 e6 6.a3 a5)

8.d3 Qe7 9.0–0 e5 10.Nbd2 0–0 11.a4 Rfe8 12.Re1 Rad8 13.Nb3 b6 14.Nbd2 Bb4 15.c3 Bd6 16.h3 Bh5 17.Nh4 Be2 18.Qe2 g6 19.Nhf3 Qe6 (19...Kg7 20.Red1+=) 20.e4 (20.c4 Kg7=) 20...de4 (20...Nc5 21.Ng5 Qe7 22.Ngf3+=) 21.Ng5 Qf5 22.Nge4 Nd5 23.Nd6 (23.Nc4!? Nc5 24.Bc1=) 23...cd6–/+ 24.Qe4 Qe6 25.Qf3 f5 26.Rad1? (better is 26.Nb3!?=) 26...Nc5–/+ 27.Ra1? (better is 27.c4!? Nb4 28.Nf1–/+) 27...Nf4–+ 28.d4 (28.Re3 Nfd3 29.Ba3 e4–+) 28...Ncd3 29.Reb1 e4 30.Qe3 Nd5 31.Qg5 Nb2 32.Rb2 Nc3 33.Qe3 Rc8 34.Qg5 Ne2 35.Kh2 Nd4 36.Qe3 Qe5 37.Kh1 f4 38.Qa3 d5 39.Qa2 Kg7 40.Re1 e3 41.fe3 fe3 42.Nf1 Nf5 43.Ne3 Ne3 44.Rbe2 0–1. Djurisic,Dusan – Ugrenovic,B (2100), 21st Belgrade Trophy, Obrenovac SRB, 2008.

8.d4 c5 9.c4 0–0 10.Nbd2 a4 11.0–0 cd4 12.Bd4 Qb8 13.h3 Bf5 14.Nh4 Be4 15.f3 Bg6. algernon (2320) – tremembe (2400), net–chess.com, 2004.

8.Ng5 Be2 9.Qe2 0–0 10.0–0 Nb6 11.f4= h6 12.Nf3 Na4 13.Bd4 c6 14.Nc3 Nc3 15.Bc3 (15...Qe7 16.a4=). pcmvr (2225) – martp (2575), net–chess.com, 2006.

8.Ng5 Bf5 9.0–0 =.

8.h3 Bf3 9.Bf3 0–0 10.0–0 c6 11.bc6 bc6 12.Ra2 e5 =+.

8.h3 Bf3 9.Bf3 0–0 10.0–0 c6 11.bc6 bc6 12.Nc3 Qc7 13.Rb1 Rab8 14.d3 Rfc8 15.Qd2 c5 16.a4 c4 17.Nb5 c3 (Better is 17...Rb5 18.ab5 c3=+) 18.Qc3+= Qc3 19.Bc3 Rb5 20.Rb5 Rc3 21.Ra5 Rc2 22.Ra8 Bb8 23.Rb1 Rc8 24.g3 Kf8 25.a5 Ne8 26.a6 Nc7 27.Rc1 Re8 28.Rb8 Nb8 29.Rc7 Na6 30.Ra7 Nb4 31.d4 Re7 32.Ra8 Re8 33.Ra4 Rb8 34.e4 de4 35.Be4 f5 36.Bg2 Ke7 37.Ra7 Kf6 38.Rd7 Rc8 39.f4 Rc1 40.Kh2 Rc2 41.g4 fg4 42.hg4 h6 43.Kg3 Rc3 44.Bf3 g6 45.Rd8 Nc2 46.Kf2 Rd3 47.Be4 Rd4 48.Rd4 Nd4 49.Ke3 Nb5 50.Bc6 Nd6 51.Bd7 h5 52.Kf3 Ke7 53.Bc6 h4 54.g5 e5 55.fe5 Nf7 56.Ke4 Ng5 57.Kf4 Ne6 58.Kg4 Nd4 59.Bd5 Nf5 60.Bb3 Kd7 61.Ba2 Kc6 62.Be6 Nd4 63.Bf7 g5 64.Ba2 Kc5 65.Bg8 Nc6 66.e6 Kd6 67.Bh7 Ke5 68.Bd3 Kf6 69.Bf1 Ne7 70.Bg2 Nf5 71.Bh3 Kg6–+ 72.Kf3 Ne7 73.Ke4 Kf6 74.Kf3 Nd5 75.Kg4 Kg6 76.Kf3 Nf4 77.Bf1 Ne6 78.Kg4 Nf4 79.Bb5 Kf6 80.Ba4 Nd3 81.Bc2 Ne5 82.Kh3 Kg7 83.Bd1 Kf7 84.Bc2 Kf6 85.Bb1 Kg7 86.Bc2 Kh6 87.Bd1 Kg6 88.Ba4 Kh5 89.Be8 Ng6 90.Kh2 g4 91.Kg1 Kg5 92.Bb5 Kf4 93.Ba6 Kf3 94.Bc8 Nf4 95.Bb7 Kg3 96.Kh1 Nh3 97.Bc6 Nf2 98.Kg1 h3 99.Kf1 h2 100.Ke2 h1Q 101.Bh1 Nh1 102.Kd3 Kf2 103.Kc4 g3 104.Kc5 g2 0–1. orane – 116, Live Game Caissa's Web, 2004.

8.h3 Bf3 9.Bf3 0–0 10.0–0 c6 11.bc6 bc6 12.c4 dc4 13.Qc2 Rb8 14.Bc6 Qb6 15.Bf6 Qc6 16.Bh4 Rfc8 17.Nc3 Nc5 18.a4 Rb4 19.Nb5 Qd7 20.Nd6 Qd6 21.Bg3 e5 22.Rfb1 Nd3 23.Qc3 Qd5 24.f4 ef4 25.ef4 Re8 26.Bf2 Re2 27.Bd4 Qg2# 0–1. mtr – ScottyPliskin, Internet, 2001.

8.h3 Bh5 9.Nc3 0–0 10.g4 Bg6 11.g5 Ne4 12.Qb1 Ng5–/+ 13.d3 Nf3 14.Bf3 Ne5 15.Be2 Qg5 16.h4 Qg2 17.Rf1 Ng4 18.Bg4 Qg4 19.Qa2 Bh5 20.b6?! c5 21.Qb1 d4 22.Qd1 dc3 23.Bc3 Qh4 24.Qd2 Bh2 25.d4 Rfd8 26.Bb2 cd4 27.ed4 Qe4 28.Qe3 Qc2 29.Qd2 Qf5 30.Bc1 Qf3 31.Rg1 Rd4! 32.Rg7 Kf8 (33.Rg8 Kg8 34.Qg5 Kh8 35.Qg7 Kg7 36.Bh6 Kh6 37.Rd1 Rd1#) 0–1. Pierred (2085) – Prash_m2 (2565), Rated game, 1m + 0s, 2005.

8.h3 Bh5 9.d3 h6 (9...0–0 10.0–0+=) 10.Nbd2 Qe7 11.c4 c5 12.Qb3 (12.bc6 bc6 13.Qa4 0–0=) 12...Bg6 13.Bc3 Bh7 14.Qb2 e5 15.cd5 Nd5 16.Nc4 Nc3 17.Qc3 b6 18.Nfd2 Bc7 19.Bf3 0–0–0 (19...Rd8 20.0–0=) 20.Bc6 (20.Rc1 Nf6 21.Ne4 Be4 22.de4 Rd7+=) 20...Nb8 21.e4 Nc6 (21...Qe6 22.Bd5 Rd5 23.ed5 Qd5 24.0–0=) 22.bc6 Qe6 23.Rb1 Qc6 24.0–0 (worse is 24.Ne5 Qf6 25.Ndc4 Rhe8–/+) 24...f5 (24...Rhe8 25.Ne3=) 25.Rb2+= fe4 26.de4 Rd2 (26...Qf6 27.Rfb1 Rdf8 28.Nf3 (worse is 28.Nb6 Kd8 29.Qd3 Qd6+–) 28...Be4 29.Nb6 Kd8 30.Rd1 Ke8 31.Nd7+–) 27.Rd2 Be4 28.f3 Bf5 29.Rfd1 Qe6 (29...Re8!?+/–) 30.Rd6 Bd6 31.Rd6 (31.Nd6?! Kb8 32.Qb2 Ka7+=) 31...Qe7 32.Rb6 (worse is 32.Nb6 Kb7 33.Qc5 Qc7 34.Qd5 Ka7+–) 1–0. Klaric – Lukacs, Tuzla, 1981. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 Nbd7 5.Be2 e6 6.a3 a5 7.b5 Bd6)

6.a3 c5

7.bc5 Bc5 8.0–0 0–0 9.c4 dc4 10.Bc4 Rc8 11.d4 Be7 (11...Bd6 12.Nbd2+=) 12.Qb3 (12.Nbd2 Qb6 13.Bc1 Rc7+=) 12...Bf3 13.gf3 Nb6 (13...Qb6 14.Qb6 Nb6 15.Bd3–/+) 14.Bd3 Qd5 15.Qd1 (15.Qd5 ed5 16.Rc1 Rc1 17.Bc1 Rc8+=) 15...Qh5 (15...Nc4 16.Bc1–/+) 16.Be2 (16.Nd2 Rfd8+=) 16...Nbd5 (16...Nc4 17.Ra2–/+) 17.Kh1 (17.f4 Qg6 18.Kh1 Qe4 19.Bf3 Qc2–/+) 17...Bd6 (17...Qh4 18.Nd2–/+) 18.f4 Qh4 (18...Qh3 19.Nd2–/+) 19.Nd2+= Nc3 (19...Rc7 20.Nf3 Qh3 21.Ng5+=) 20.Bc3 Rc3 21.Nc4?? (better is 21.Qa4+=) 21...Bf4!–+ 22.ef4 Rh3 (22...Qf4?! 23.Qd2 Nd5 24.Ra2=) 23.Bf3 Qf4 (23...Qf4 24.Bb7 Qh2#; 23...Rh2?! 24.Kg1=) 0–1. Bowers,D – Bochinski,M, Colorado USA, 1986.

7.bc5 Bc5 8.0–0 0–0 9.h3 Bh5 10.Ne5 Be2 11.Qe2 Qc7 12.d3?? (12.Nd7 Nd7 13.Qg4 e5=) 12...Rac8 (better is 12...Ne5 13.c4 Be7 14.cd5 Nd5–+) 13.Nd7+= Nd7 14.Rc1 Qb6 15.c4 Rfe8 16.d4 Bf8 17.c5 Qc7 18.Nd2 Nf6 19.Qb5 Qc6 ½–½. Fournier,Frederic (2215) – Robeson,Christian (2205), Train France (FRA), 2001.

7.bc5 Bc5 8.0–0 Bd6 9.h3 (9.Nc3 Bf3 10.Bf3 0–0 11.Nb5 Qb6 12.a4 Rfc8 13.Rb1 Be5) 9...Bf3 10.Bf3 Rc8 (10...0–0 11.Nc3 Ne5 12.Be2 Qd7 13.Nb5 Ne4) 11.Nc3 Ne5 12.Be2 a6 13.d3 0–0 (13...Qa5=) 14.e4 (14.Nb1 Qb6 15.Qc1 Qc6=) 14...Bb8 15.ed5 Nd5 (15...ed5 16.Rb1+=) 16.Nd5 Qd5 17.g3 Rfd8 18.c4 Qc6 (18...Qd6 19.Qb3 Ba7 20.Kh2+= (worse is 20.Qb7 Nc6 21.Bf3 Rb8–/+)) 19.Rc1 Qd6 (19...Qd7 20.d4 Nc6 21.Bf3=) 20.d4 Nc6 21.Bf3 h6 (21...Ba7 22.c5 Qc7 23.Re1+=) 22.d5 (22.c5 Qe7+=) 22...Ne5 23.Be5 Qe5 24.Qb3 Ba7 25.Kg2 ed5 (25...Rc7 26.Rce1 Qf6 27.de6 fe6 28.c5 Rc5 29.Re6+=) 26.Bd5 (26.Qb7 Rc7 27.Qa6 dc4 28.Rc4 Rd2 29.Rc7 Qc7+=) 26...Rc7 27.Rce1 Qf6 28.Re4 Rdd7 '=' 29.Rf4 Qe5 (29...Qd6 30.Qf3+=) 30.Re4 (30.Qb1!? Qd6 31.Re1+=) 30...Qf6 31.Rf4 ½–½. Sarkisian,Artzrun V – Chistiakov,Alexander N, Yerevan Seniors, 1984.

7.bc5 Bc5 8.c4 dc4 9.Bc4 Rc8 10.d4 Qb6 11.Bb3 Bd6 12.Nbd2 0–0 13.0–0 Rfd8 14.h3 Bf5 15.Rc1 Bd3 16.Re1 Qb5 17.Rc8 Rc8 18.Qa1 Ne4 19.Rc1 Rc1 20.Qc1 Nb6 21.a4 Qa5 22.Ne4 Be4 23.Ne5 Qb4 ½–½. marekt – carlosmart, GameKnot.com, 2002.

7.bc5 Bc5 8.d3 Qb6 9.Ra2 Bd6 10.Nbd2 e5 11.0–0 (11.d4 e4 12.Ne5 Be2 13.Qe2 Rc8=). Haertig,Manfred – Schulz,Hans_Juergen, TT–06 TSC, 2003.

6.a3 Bd6

7.0–0 0–0 8.Nc3 a5 9.b5 (9.Nb5 Be7 10.Ne5 Be2 11.Qe2 c6 12.Nd7 Nd7+=) 9...e5 (9...Qe7 10.Nd4 Be2 11.Qe2 a4 12.f4 Nb6+=) 10.d3 Qe7 11.h3 Bf5 12.Nd5 Nd5 +=.

7.0–0 0–0 8.d4 Ne4 9.Ne5 Bf5 10.c4 dc4 11.f3 Nef6 (11...c3 12.Nc3 A) 12...Ne5? 13.fe4 (13.Ne4?! Nc6+/–; 13.de5?! Nc3 14.Bc3 Be7+=) 13...Bg6 14.de5 Be5 15.Qe1+–; B) 12...Nc3 13.Bc3 Ne5 14.de5 Be7+=) 12.e4+– Ne4 (12...Bg6 13.Ng6 hg6+/– (13...fg6? 14.Bc4 Bf4 15.Be6 Kh8 16.g3 Be3 17.Kg2+–)) 13.fe4 Be4 14.Bf3?? (better is 14.Nd2!? Bd5 15.Nd7 Qd7 16.Nc4+–) 14...Bd5 (14...Bf3 15.Nf3 (15.Rf3?? Ne5 16.Rh3 Nd3–+) 15...a5 16.b5+/–) 15.Qe1 (15.Nd2 b5+/–) 15...c6 (15...a5 16.Nd2 ab4 17.Nec4 (worse is 17.Ndc4 Ne5 18.Ne5 ba3–/+) 17...ba3 18.Ba3 Ba3 19.Na3+=) 16.Nc3 Nf6 (16...Be5 17.de5 (worse is 17.Nd5 Bh2 18.Kh2 ed5=) 17...Qb6 18.Kh1+/–) 17.Bc1 (17.Be2 a5 18.ba5 Ra5+/–) 17...a5+= 18.ba5 Ra5 19.Ne4 (19.Nd5!? cd5 20.Rb1+=) 19...Ne4 (19...Be4 20.Be4 Bb4 21.Qb4 Qd4 22.Kh1 Ne4 23.Bb2 (23.Qa5?? Nf2 24.Kg1 Nh3 25.Kh1 Qg1 26.Rg1 Nf2) 23...Nf2 24.Rf2 Qf2 25.Qa5 Qb2 26.Qe1+=) 20.Be4= Qb6 21.Kh1?? (better is 21.Be3 Be4 22.Nc4 Bh2 23.Kh1+=) 21...Qd4–+ 22.Bd5 (22.Bb2 Qe4 23.Qe4 Be4 24.Nc4 Rg5–+) 22...Rd5 (22...Qe5 23.Qe5 Be5 24.Rb1 cd5 25.Rb7–+) 23.Bf4 (23.Bb2 Qb2 24.Nc4–+) 23...Be5 24.Be5 Qe5 0–1. Nollet,Fabrice (1690) – Cottegnie,Francis (1900), 6th LUCOPEN, 2015.

7.0–0 0–0 8.d4 e5 9.de5+/– Ne5?? (better is 9...Bf3 10.ed6 Be2 11.Qe2 cd6+/–) 10.Ne5+– (10.Be5?! Bf3 11.Bd6 Be2 12.Bc7 Bd1 13.Bd8 Be2+=) 10...Be2 11.Qe2 Re8 12.Nd3 c6 13.Nd2 Qc7 (13...Bc7 14.Nc5 Qd6 15.Nf3+–) 14.h3 (14.Bf6!? gf6 15.Qg4 Kh8+–) 14...Qe7 15.Bf6 Qf6 16.Qg4 Re7 17.c4 Rae8 (17...Qc3 18.c5 Bc5 19.Nc5 Qd2 20.Rfd1+–) 18.cd5 cd5 19.Rac1 a6 20.Rc8 Rc8 (20...Qe6 21.Qe6 fe6+–) 21.Qc8 (21.Qc8 Re8 22.Qe8 Bf8 23.Rc1+–) 1–0. Kappel,Ray – Anderson,Lawrence, 39. LSS No Engine Cup Preliminary, 2011.

7.0–0 0–0 8.h3 Bh5 9.d3 (9.Nc3 a5 (9...a6 10.g4 Bg6 11.Nh4 Ne4 12.Ng6 Nc3=; 9...c6 10.Nd4 Be2 11.Qe2 a5 12.b5 c5+=) 10.b5 Nb6 11.d3 Qd7 12.e4 de4+=) 9...c5 10.bc5 Nc5 11.Nc3 (11.Nbd2 Qe7 12.Qb1 Na4+=) 11...a6 (11...Qd7 12.Rb1 Rfc8=) 12.Nd4 (12.g4 Bg6+=) 12...Be2 13.Qe2 b5 14.f4 Rc8 15.Nf3 Bc7 16.Rfe1 Ba5 17.Reb1 Qe7 18.Ne5 Qc7 19.Ra2 (better is 19.Rc1!?–/+) 19...Ncd7–+ 20.Nd7 Nd7 (20...Qd7?! 21.Nd1=) 21.Nd1 Qc2 22.Qc2 Rc2 23.Kf1 (23.Raa1 Rfc8–+) 23...Nc5 24.Nf2 (24.Rc1 Rc1 25.Bc1 Nd3–+) 24...Nb3 25.Rd1 (25.Kg1 Bd2 26.Nd1 Nc1–+) 24…Bd2 0–1. Enders,Peter – COMP, Kuppenheim rapid, 2000. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 e6 5.a3 Bd6 6.Be2 Nbd7)

7.0–0 a5 8.b5= 0–0 9.h3 Bh5 10.d3 c6 11.bc6 (11.c4 cb5 12.cb5 Rc8=+) 11...bc6 12.Nbd2 (12.c4 Rb8 13.Ra2 dc4=+) 12...Rb8 13.Qc1 (13.Rb1 Qe7=+) 13...e5 14.Bd1 (14.Rb1 Qc7=+) 14...Qe7 15.c4 Bg6 (15...Bf3 16.Bf3 Nc5 17.Be2=+) 16.Bc2 (16.Be2 Rb7=+) 16...h6 (16...Qe6 17.Nh4=+) 17.cd5 (17.Rd1!?=+) 17...cd5–/+ (17...Nd5?! 18.Nc4 Bc7 19.Qd2=) 18.e4 (18.Bc3 Rfc8 19.Nb1 Rb1 20.Bb1 d4 21.ed4 Nd5–+) 18...Rfc8 19.Qb1 Qe6 20.ed5 (20.Re1 Bc5 21.Re2 de4 22.de4 Rc7–/+) 20...Nd5 21.Qa2?? (better is21.Re1–/+)21...Rc2–+ 22.Rab1 Bd3 (better is 22...Nc5 23.d4 Nd3 24.de5 Rbb2 25.Rb2 Rb2 26.Qa1–+) 23.Rfc1 (23.Rfd1 e4 24.Re1–+) 23...Rbb2! 24.Rb2 (24.Qb2 Rb2) 24...Rc1 25.Kh2 e4 26.g3 ef3 27.Nf3 Be4 28.Qb3 Rh1! 29.Kh1 Qh3 30.Kg1 (If White now only could play Re2...) 30...Ne5 (31.Qb8 Bb8 32.Rb8 Kh7 33.Ng5 hg5 34.Rh8 Kh8 35.f3 Qg3 36.Kf1 Bd3#) 0–1. khani9 – michaelbuss, ChessWorld.net, 2007.

7.0–0 c6 8.Nd4 Be2 9.Qe2 Nb6 10.d3 a5 11.b5 Na4 12.c4 Nb2 13.Qb2 0–0 14.Rc1 Be5 15.c5 Nd7 (15...Ng4 16.h3 (< 16.bc6 Bh2 17.Kf1 bc6=+) 16...Nf6 17.Nc3=) 16.Nd2 Qc7 17.h3 Bd4 18.ed4 Rfb8 19.b6 Qf4 20.Nf3 Nf8 21.Re1 Ng6 22.Re3 Qh6 23.Rae1 a4 24.Ne5 Nh4 25.Rg3 Rf8 26.Ng4 ½–½. marekt – scriptarium, ChessWorld.net, 2003.

7.0–0 Bf3 8.Bf3 Ne5 =.

7.Nc3 a5 =+.

7.Nc3 Bf3 8.gf3 c6 =.

7.c4 dc4 8.Bc4 0–0 9.h3 +=.

7.c4 dc4 8.Bc4 a5 9.b5 =+.

7.c4 c6 8.cd5 (8.c5 Bc7=) 8...cd5 (8...ed5 9.0–0=) 9.Nc3= 0–0 10.Nb5 Bb8 (10...Be7=) 11.Nfd4 (11.0–0!?=) 11...Be2+= 12.Ne2 (12.Qe2 e5 13.Nf5 g6–/+) 12...a6 (12...Qb6 13.Qa4–/+) 13.Nbd4+= Ne5 (13...e5 14.Nb3+=) 14.d3 Ng6 (14...a5 15.b5=) 15.Nf3 (15.0–0 Qd7=) 15...e5 16.Ng3 Re8 17.0–0 Ba7 (17...Qd7 18.Re1+=) 18.Qb3 Rc8 19.Rac1 Qd6 20.Rfd1 (20.h3 Bb8=) 20...b5 (20...Qe6 21.b5=) 21.Nf5 (21.a4 Qe6=) 21...Qd7 22.Ng3 Rc1 (22...Bb8 23.e4=) 23.Rc1 Ng4 24.d4 (24.Rc2 Nf6+=) 24...e4 25.Nd2 Ne7 26.h3 Nh6 27.Qd1 Rc8 28.Nb3 Rc6 29.Rc6 Qc6 30.Nc5 Bb8 31.Nf1 Nhf5 32.Qg4 g6+= 33.Ng3 Bg3 34.fg3 Qd6 35.Kf2= Nc8 36.Qf4 Qb6 37.Qe5 Ncd6? 38.Nd7+– Qc7? 39.Nf6 Kf8 40.Nh7 Kg8 41.Nf6 Kf8 42.Nd5 Qc2 43.Kg1 Kg8 44.Ne7 Ne7 45.d5 Kf8 46.Qd6 Qb2 47.Qd8 Kg7 48.Qe7 Qa3 49.Qe4 a5 50.Qe5 f6 51.Qc7 Kh6 52.d6 Qe3 53.Kh2 ab4 54.d7 b3 55.Qf4 Qf4+– 56.gf4 b2 57.d8Q (57.d8Q Kg7 58.Qd7 Kh6 59.Qb5+–) 1–0. Blasius,Stefan (1715) – Busche,Stefan (2135), GER Cup Amateur GrAB 1st, 2000.

7.d3 0–0 8.Nbd2 c5 9.bc5 Nc5 10.a4 Re8 11.h3 Bf3 12.Nf3 e5 13.0–0 Qd7 Exerts pressure on the isolated pawn 14.d4 Na4 15.Ra4 e4 (worse is 15...Qa4 16.de5 Ne4 17.ed6 Nd6 18.Be5+/–) 16.c4 ef3 17.Bf3 dc4 18.Rc4 Ne4 19.d5 Qb5 20.Rc2 Rad8 21.Qa1 Bf8 22.Qa7 Rd5 23.Be4 Re4 24.Ba3 Re8 25.Bf8 Rf8 26.Rc7 b6 27.Rb7 Rg5 28.Qb6 Qd5 29.g3 Qf3 30.Qc7 h5 31.Rb4 Rf5 32.Qb7 Qb7 33.Rb7 Re8 34.Kg2 g6 35.Re1 Rfe5 36.Rc1 R5e7 37.Rcc7 Rc7 38.Rc7 Kg7 39.Kf3 Ra8 40.e4 Ra3 41.Kf4 Ra2 42.f3 Re2 43.g4 hg4 44.hg4 (worse is 44.fg4 Rf2 45.Kg5 Re2+/–) 44...Rf2 45.g5 Rg2 46.Rc3 Rg1 47.Rc2 Ra1 48.Rd2 Rf1 49.Ke3 Re1 50.Re2 Rg1 51.f4 Rf1 52.e5 Ra1 53.Rd2 Ra3 54.Ke4 Ra4 55.Rd4 Ra5 56.Rd7 Kf8 57.Rd6 Ra4 58.Kf3 Ra3 59.Ke4 Ra4 60.Rd4 Ra5 61.Kd3 Ke7 62.Rb4 Ra1 63.Rb7 Ke6 64.Rb6 Ke7 65.Rf6 Re1 66.Rb6 Ra1 67.Ke4 Ra4 68.Kf3 Ra3 69.Kg4 Ra1 70.Rf6 Rg1 71.Kf3 Re1 72.Rd6 Rf1 73.Ke4 Re1 74.Kf3 Rf1 75.Ke3 Re1 76.Kd2 Re4 77.Rf6 Rd4 78.Ke3 Rd1 79.Ke2 Rd4 80.Kf3 Rd3 81.Ke4 Rd1 82.e6 Re1 83.Kd5 fe6 84.Kd4 e5 85.fe5 Rd1 ½–½. Kasparov,S (2480) – Goganov,A (2475), Amitan Memorial, 2010. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 Nbd7 5.Be2 e6 6.a3 Bd6)

7.d3 a5 8.b5 0–0 9.Nbd2 c6 10.bc6 bc6 11.h3 Bh5 12.c4 e5 13.0–0 Qe7 Black prepares e4 14.g4 (14.a4 e4 15.Nh4 Be2 16.Qe2 Rfb8+=) 14...Bg6–/+ Black intends e4 15.Nh4 Rab8 16.Rb1 (16.Ng6 fg6 17.Qc2 Nc5+=) 16...e4 (16...Ba3 17.Ba3 Qa3 18.g5–/+) 17.Ng6+= fg6 18.Bd4 c5 (18...ed3 19.Bd3 Rb1 20.Nb1+=) 19.Ba1 d4 (19...ed3 20.Bd3 Rb1 21.Qb1 Ng4 22.hg4–+) 20.de4 de3 21.fe3 Be5 22.Be5 Ne5 23.Rb8 Rb8 24.Qc2 h5 (24...Nc6 25.Qc3=) 25.gh5+= Nh5 26.Bh5 gh5 27.Nf3 (27.Qc3 Qg5 28.Kh2 h4=) 27...Rb6= 28.Ne5 Qe5 29.Qg2 a4 30.Rf5 Qa1 (30...Qc3!?–/+) 31.Rf1= Qa3 32.Qg5 Qd3 33.Qd5 Qd5 34.ed5 a3 35.Ra1 Rb3 36.Kf2 Kf7 37.Kf3 Kf6 38.Ke4 (38.Rf1 Ke5 39.Rd1 a2–/+) 38...g5 (38...Rc3 39.Rf1 Ke7–/+) 39.Ra2? (better is 39.Rf1!? Ke7 40.Rg1+=) 39...Rc3–/+ 40.Kf3 Ke5 41.Rd2 (41.Rg2 Kf5–+) 41...g4! 42.hg4 hg4 43.Kf2 Kd6 (43...Rc4?! 44.d6 g3 45.Kg3=) 44.Ra2 Rb3 45.Ra1 Ke5 46.Kg3 Re3 47.Kg4 Rd3 48.Kg5 Kd4 49.Rc1 a2 50.d6 Ke3 51.Ra1 Rd6 52.Ra2 Kd3 53.Ra1 Kc4 0–1. pcmvr – maletafc, net–chess.com, 2016.

7.d3 c6 8.Nbd2 0–0 (8...a5 9.0–0+=) 9.e4 (9.h3 Bf5=) 9...e5 (9...Qc7!?–/+) 10.c4= a5 11.c5 Bc7 12.Qc2 (12.0–0 Qe7=) 12...Qe7 (12...ab4 13.ab4 Ra1 14.Ba1+=) 13.0–0= Nh5 14.Rfe1 (14.ed5 cd5 15.Nd4 Ndf6 16.Bg4 Ng4=) 14...Nf4+= 15.Bf1 d4 16.h3 Be6 17.Nc4 Qf6 18.Nfd2 (18.h4 Nh3! 19.Kh1 ab4 20.ab4 Nf4+=) 18...Rfe8 19.Nb3 Qh4 (19...Qg6 20.Kh1 (20.Nba5? Bh3 21.g3 Re6–+) 20...ab4 21.ab4+=) 20.Kh2 (better is 20.Nca5 Bh3 21.Bc1 (21.gh3 Re6 22.f3 Rg6 23.Bg2 Ng2 24.Qg2 Rg2 25.Kg2 Nf6–+) 21...Ba5 22.Na5–/+) 20...Bh3 21.gh3 Re6 22.Bc1 (22.Ne3 de3 23.Re3 a4–+) 22...a4 (22...Rg6 23.Ne3 (23.Nba5?? Qg5 24.Bf4 Qg1) 23...de3 24.Re3–+) 23.Nba5?? (better is 23.Bf4 Qf4 24.Kh1 ab3 25.Qd2–+) 23...Rg6 24.Ne3 (24.Nb7?? Qg5 25.Bf4 Qg1) 24...de3 (better is 24...Nf6!? 25.Nf5 Ng4 26.Kh1 Nf2 27.Kh2 Ng4 28.Kh1 Qe1 29.Bb2–+) 25.Re3 Ba5 26.ba5 Ra5 27.Rg3 Qe7 (better is 27...Nc5 28.Bd2 Rb5–+) 28.d4 Ne6 29.Qd2 (29.Qc3 Ra8 30.d5 Rg3 31.fg3 Qc5–+) 29...Ra8 30.Rb1?! (30.Qb4 ed4 31.Qb7 Rd8 32.Rg6 hg6 33.Qc6 Ne5–+) 30...Rg3 (30...ed4 31.Rb7 Nec5 32.Rg6 hg6 33.Rb4–+) 31.Kg3 (31.fg3 Nd4 32.Qb4 Qc5 33.Qc5 Nc5–+) 31...Nf6 (31...ed4 32.Bc4 Ndc5 33.f3–+) 32.Bg2 (32.f3 Nd4 33.Qe1 Nh5 (33...Qc5?! 34.Rb7 Nh5 35.Kf2 Nc2 36.Be3 Qa3 37.Qc1 Qe3 38.Qe3 Ne3 39.Ke3–+) 34.Kg2 Rd8–+) 32...Nd4 (32...ed4 33.e5 Qc7 34.Qe2–+) 33.Qb4 (33.Kh2 Rb8 34.Qb4 Nd7–+) 33...Ne2 34.Kh2 (34.Kf3 Nc1 35.Rc1–+) 34...Ng4 35.Kh1 Nf2 36.Kh2 Qh4 37.Qb7 (37.Qc3 Nc3 38.Kg1 Rd8 39.Bg5 Nh3 40.Bh3 Qg5 41.Kh1 Nb1 42.Bf5 Qh4 43.Bh3 Qh3 44.Kg1 Rd1 45.Kf2 Nd2 46.Ke2 Qf3) 37...Qg3 mate 0–1. Burg,Brent (2220) – Mangelschots,Peter (2050), 5th Terre Degli Elimi Open, 2014. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nd7 4.e3 Ngf6 5.Be2 e6 6.a3 Bd6)

7.d4 0–0 8.Nbd2 Nb6 9.c4 dc4 10.Nc4 Nc4 11.Bc4 c6 12.h3 Bh5 13.Rc1 a5 14.b5 cb5 15.Bb5 Qb6 16.Qe2 Rac8 17.0–0 Bf3 18.gf3 Nd5 19.a4 Qd8 20.f4 Rc1 21.Rc1 f5 22.Qf3 Rf6 23.Bc4 Rg6 24.Kh2 Qb6 25.Bd5 Qb2 26.Rc8 Kf7 27.Bc4 Qb4? 28.Bb5+– Kf6?? 29.Qh5 Rh6 30.Qg5 Kf7 31.d5! e5 32.Qf5 Rf6 33.Qh5 (33...Rg6 34.Be8 Ke7 35.Qh4 Rf6 36.Qg4 Qf4 37.ef4 Bc7 38.Qg7 Kd6 39.Qc7 Kd5 40.Qe5#) 1–0. Fedorko,Andrew – Berry,Jack, internet, 1998.

7.d4 0–0 8.Nbd2 c6 9.c4 Rc8 10.Ne5 Be2 11.Qe2 Bb8 12.0–0 Ne5 13.de5 Nd7 14.f4 Qe7 15.e4 dc4 16.Nc4 b5 17.Ne3 Rfd8 18.Kh1 a6 19.Ng4 Qh4 20.Rac1 h5 21.Ne3 c5 22.g3 Qh3 23.Nd1 Qg4 24.Qg4 hg4 25.Ne3 Nb6 26.bc5 Na4 27.Bc3? (better is 27.Ba1 Ba7 28.Ng4 Bc5 29.Rf3–/+) 27...Rd3–+ (27...Rc5 28.Bb4 Rcc8 29.Rc8 Rc8 30.Rd1+/–) 28.Nd1 Rc5 (28...Nc5?! 29.Nf2 Ba7 30.Kg2=) 29.Bb2 Ba7 30.Rc5 Bc5 (30...Nc5?! 31.Nf2 Rd2 32.Bc3+=) 31.Bc1 Ba3 32.Nf2 Rf3 33.Ba3 Ra3 34.Ng4 b4 35.Rd1 b3 36.Rd8 Kh7 0–1. Pal,Peter (2285) – Szabo,Zsolt (2370), Balatonbereny op, 1996. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Be2 Nbd7 5.Bb2 e6 6.a3 Bd6)

7.d4 a5 8.b5 =+.

7.d4 Nb6 8.Nbd2 a5 9.Ne5 Be2 10.Qe2 0–0 11.b5 Na4 12.Bc1 Be5 13.de5 Nd7 14.Nf3 f6 15.ef6 Qf6 16.Nd4 Nc3 17.Qf3 Qf3 18.Nf3 Nb5 19.Rb1 Nd6 20.0–0 Nc5 21.Ne5 Nde4 22.Rb5 b6 23.f3 Nc3 24.Rb2 Ne2 25.Kf2 Nc1 26.Rc1 Rf5 27.Nc6 Rf6 28.Ke2 Re8 29.c4 Rh6 30.h3 Rg6 31.g4 Rh6 32.Rh1 dc4 33.Ne5 Na4 34.Rc2 c3 35.g5 Rh5 36.f4 c5 37.Kf3 Rd8 38.Kg4 g6 39.Rhh2 (39.Rb1 Kg7–/+) 39...Rd1 (39...b5!? 40.Rc1–+) 40.Nf3? b5 0–1. McGrath,Marion (2015) – Garcia Padron,Mary Pino (1940), Buenos Aires ol (Women) prel, 1978. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nd7 4.e3 Ngf6 5.Be2 e6 6.a3 Bd6)

7.d4 Ne4 8.Nbd2 f5 (8...Nd2 A) 9.Qd2 Nb6 10.0–0+= (10.Rd1 Qf6 11.0–0 Nc4 12.Bc4 dc4 13.Qe2+=; 10.Qc3 0–0 11.0–0 Qf6 12.Rfb1 c6 13.h3+=) 10...0–0 11.h3 Bh5 12.Qc3 c6 13.Rfe1+=; B) 9.Nd2 Be2 10.Qe2 a5 11.b5 Qg5 12.0–0 0–0 13.f4=) 9.c4= 0–0 (9...c6 10.c5 Bc7 11.h3 Bh5 12.0–0 Qf6 13.Rb1=; 9...Qf6 10.c5 (10.h3 Bh5 11.c5 Be7 12.Qc2 c6 13.b5=; 10.Rc1 a5 11.c5 Be7 12.Qa4 Nd2 13.Kd2=) 10...Be7 11.Qc2 c6 12.h3 Bh5 13.b5=) 10.c5 Be7 11.0–0 Bf6 (11...a5 12.h3 Bh5 13.Qc2=) 12.Ne5 (12.Rb1 a6 13.h3=) 12...Be2 (12...Be5 13.de5=) 13.Qe2 Be5 14.de5 Nd2 15.Qd2 c6 16.Bd4 Qc7 17.f4 Rf7 (17...a5 18.Rfd1=) 18.Rac1 Kh8 19.a4 Rg8 20.h4 (20.b5 Rc8+=) 20...h6 21.Kf2 (21.Rfd1 Qd8 22.Qf2 Qe7=) 21...Nf8 22.Qe2 (22.h5 Nh7=) 22...g5 (22...Qe7 23.h5=) 23.h5 (better is 23.hg5!? hg5 24.Rh1 Rh7 25.Rcf1+=) 23...Rfg7+= 24.Rg1 gf4 25.ef4 Rg3 (25...Rg4 26.Ke3+=) 26.Kf1 (26.Rc3 Qg7 27.Kf1 Rc3 28.Bc3 Qg3+=) 26...Qf7+= 27.Bf2 (27.Be3 R8g4 28.Rh1 d4+=) 27...R3g4 28.g3 Qh5 29.Ke1 Qf7 30.Kd2 Kg7 31.Rh1 h5 32.Rh3 Ng6 33.Qf3 Rh8 34.Rch1 Nf8 35.R1h2 Rh7 36.Qh1 h4 37.Rh4+= Rgh4 38.Rh4 Qg8 39.Rh7 Qh7= 40.Qh7 Kh7 41.Kc3 Kg6 42.b5 Nd7 43.Kb4 Kh5–/+ 44.a5 a6 45.b6? Kg4–+ 46.Kc3 Kf3 47.Bg1 Kg3 48.Be3 Kf3 49.Kd3 Nf8 0–1. Drummond,Redpath – Anderson,Frank R, Arvida, 1949. (=1.Nf3 Nf6 2.b4 d5 3.e3 Bg4 4.Bb2 Nbd7 5.Be2 e6 6.a3 Bd6)

7.d4 Ne4 8.Ne5 Be2 9.Qe2 0–0 (9...a5 10.Nd7 (10.Qb5+= Ra7 11.Nd7 Qd7 12.Qd7 Kd7 13.b5 a4 14.f3 Nf6 15.Nc3+=) 10...Qd7 11.f3 Nf6 12.e4 Bf4 13.g3 Bh6 14.e5 Ng8 15.b5=) 10.Nd7 (10.0–0 Qh4 11.c4 Nb6 12.cd5 ed5 13.Nc3 f6 14.Ne4 Qe4 15.Nd3+=) 10...Qd7 11.f3 Nf6 12.e4 Be7 (12...Bf4 13.e5 Ne8 14.0–0 a5 15.b5=) 13.e5 (13.0–0 a5 14.b5 c5 15.e5+=) 13...Ne8 14.0–0 c6 (14...a5 15.b5+=) 15.Nd2= Nc7 16.f4 (16.Bc3 f6=) 16...f5 (16...a5 17.Bc3+=) 17.ef6 gf6 (17...Rf6 18.Nf3=) 18.f5 ef5 19.Qh5 Ne8 20.Rf3 (20.Nb3 Ng7 21.Qh4 Rae8=) 20...Ng7 21.Qh6 Bd6 22.Re1 (22.c4 dc4 23.Nc4 Bc7=) 22...Rae8 23.Re8 Qe8 24.Rh3 (24.c4!?=) 24...Qg6–/+ 25.Nf3 (25.Qe3 f4 26.Qb3 Nf5–/+) 25...Qh6 (25...f4 26.Qg6 hg6 27.Rh6–/+) 26.Rh6 Bf4 27.Rh3 Re8 28.Kf2 Be3 29.Kf1 Re4 30.c3 Ne8 31.Ne1 Nd6 32.Nd3 Nc4 33.a4 Bg5 34.Bc1 Bc1 35.Nc1 Ne3 36.Kf2 Nd1 37.Kf1 Re3 38.Ne2 Rh3–/+ 39.gh3 Kf7 40.a5 Kg6 41.Ke1 Ne3 42.Nf4 Kg5 43.Ne6 Kh4 44.Nf4 Nc4 45.Kf2 Nd6 46.Ke3 Ne4 47.Kd3 Nf2 48.Ke2 Nh3 49.Ne6 Ng5 50.Nd8 f4 51.Nb7–/+ Kg4 52.Nd8 f3 53.Ke3 Ne4 54.Nc6 Nc3 55.Kf2 Kf4 56.b5?? Nb5 57.a6 Ke4 58.h4 h5 59.Kf1 Ke3 60.Ke1 Nd4 61.Na7 f2 62.Kf1 Nf3 (62...Nf3 63.Nc8 Nd2 64.Kg2 f1Q 65.Kh2 Kf3 66.a7 Qg2#; 62...Nf5 63.Nb5 Ng3 64.Kg2 f1Q 65.Kg3 Qf3 66.Kh2 Kf2 67.a7 Qg2#) 0–1. Pandurevic,Miro (2280) – Glavas,Dragan (2220), Riviera IM, Opatija CRO, 2003.

7.d4 Bf3 8.Bf3 c6 9.0–0 =.

7.Nd4 Be2 8.Qe2 0–0 9.0–0 c6 10.d3 a5 11.b5 Qc7 12.g3 Be5 13.Nc3 Bd4 14.ed4 Qb6 15.Rab1 Qd4 16.Ne4 Qa4 17.Nf6 Nf6 18.Bf6 gf6 19.c4 Qa3 20.bc6 bc6 21.cd5 cd5 22.Qg4 Kh8 Black intends a4 23.Qd4 e5 24.Qd5 a4 25.Rb6 Qe7 26.Rb7 Qd8 27.Qf3 a3 28.Ra1 Ra6 29.Rb4 Qd6 30.Rh4 Rg8 31.Qf5 Rg6 32.Rc4 Kg7 33.Qe4 h5 34.Qf3 a2 35.Rc2 Qb6 36.h4 (36.Rca2?? Ra2 37.Ra2 Qb1 38.Kg2 Qa2 39.Qh5 Qe6–+) 36...Ra4 37.Kh2 (37.Rca2?? Ra2 38.Ra2 Qb1 39.Kg2 Qa2 40.Qh5 Qe6–+) 37...Qb3 38.Qe2 Qd5 39.f3?? (better is 39.Qh5 Qd3 40.Rca2 (40.Raa2?? Rh6 41.Qf7 Kf7 42.Rc7 Kg6 43.Ra4 Rh7 44.Rh7 Kh7–+) 40...Ra2 41.Ra2=) 39...Qd4–+ 40.Qf1 Ra3 41.Rd2?? (41.Rca2!? Rd3 42.Qf2–/+) 41...f5 (better is 41...Rg3! 42.Kg3 Qf4 43.Kg2 Qd2 44.Qf2 Qf2 45.Kf2 f5–+) 42.Raa2 Ra2 43.Ra2 f4 44.Rg2 fg3 45.Rg3 Qh4 (45...Qh4 46.Rh3 Qf4 47.Kh1 Rc6–+) 0–1. Sopur,Lech (2265) – Jedynak,Radoslaw (2430), Poland–ch sf U20, 2003. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 e6 5.a3 Nbd7 6.Be2 Bd6)

7.c4 0–0

8.0–0 dc4 9.Bc4 a5 10.b5 =+.

8.0–0 c6 9.c5 Bb8 =.

8.0–0 c6 9.cd5 ed5 10.d3 Qc7 11.Nbd2 a5=+ 12.h3 Bh5 13.Bc3 ab4 14.Bb4 Rfe8 15.Bd6= Qd6 16.Qb3 Nc5 17.Qb4 Ra4 18.Qb2 Bg6 19.d4= Ne6 20.Rfc1 Ra7 21.Rc3 Rea8 22.Rb3 Qe7 23.Ne5 c5 24.dc5 Nc5 25.Ng6 hg6 26.Rb5 Nce4 27.Nb1 Qd7 28.Bd3 Nd6 29.Rb3 Nc4= 30.Qd4 Ra4 31.Rb4 Na3= 32.Ra4 Ra4=+ 33.Qb2 Nb1 34.Rb1 Ra7 35.Qb6 Qa4 36.Rc1 Ra8 37.Qb7+= Qe8 38.Ba6 Rb8 39.Rc8 Rc8 40.Qc8 Qc8 41.Bc8 Kf8 42.Kf1 Ke7 43.Ke2 Kd6 44.Bb7 Ke5 45.Kd3 Ne4 46.f4+/– Kd6 47.Kd4 Nf6? 48.g4+– Nd7 49.Bd5 f6 50.h4 g5 51.hg5 fg5 52.f5 Ne5= 53.Bg2 Ng4 54.e4 Ne5 55.Bf1 Nc6 56.Ke3 Ke5 57.Kf3 Nd8 58.Kg4 Ke4 59.Kg5 Nf7 60.Kg6 Nd6 61.Kg7 Nf5 ½–½. Schwartz,Simon – Hoffmann,Eberhard, Salzwedel op, 2000.

8.0–0 c6 9.cd5 Nd5 10.Nc3 =+.

8.Nc3 Ne4 9.c5 Be5 10.d4 Bf6 11.Qc2 c6. mgriffin – viz, net–chess.com, 2001.

8.Nc3 Bf3!? 9.gf3 dc4 10.Bc4 a5 =+.

8.c5 Be7 =.

7.h3 Bf3

8.gf3 Qe7 9.c4 c6 10.c5 Bc7 11.Rg1 Rg8 12.Qc2 e5 13.Qf5 h6 14.Nc3 g6 15.Qc2 Qe6 16.0–0–0 a5 (16...Qh3?! 17.Rh1 Qe6 18.Rh6=) 17.h4 b6 18.cb6 Bb6 19.Na4 ab4 20.Nb6 Nb6 21.ab4 Nfd7 22.d4 Nc4 (22...Ra2!? 23.Qb3 Ra4+=) 23.Bc4= dc4 24.Qe4 (24.de5 Ne5 25.Be5 Qe5 26.Qc4 Qa1 27.Kd2 Rd8 28.Kc2 Qa4 29.Qb3 Qa7+/–) 24...c3 (24...f5!? 25.Qc2 ed4 26.Bd4 Ra3+=) 25.Bc3+= Qb3 (25...Ra2 26.d5 cd5 27.Qd5+=) 26.Qc2 (26.Qc6 Ra6 27.Qc7 Ra7 28.Qa7 Qc3 29.Kb1 Qb3 30.Ka1 Qc3 31.Ka2 Qc2 32.Ka3 Qc3 33.Ka4 Qc2 34.Ka3 Qc3 35.Ka2 Qc2 36.Ka1 Qc3 37.Kb1 Qb3 38.Ka1 Qc3=) 26...Qc4 27.Qd3 Qb3 28.de5 Nb6 29.Qc2 Qa3 30.Qb2 (30.Bb2!? Qb4 31.Qc6 Kf8 32.Rg4+–) 30...Qa4 31.Rd4 Ke7 (better is 31...Qb5!?+/–) 32.b5+– Nc4 33.Bb4 Ke8?? (better is 33...c5 34.Rc4 cb4 35.Rc7 Ke6 36.Rc6 Ke7+–) 34.Rc4 cb5 (34...Qb5 35.Rc5 Qd3 36.Rd1+–) 35.Rc7 Qa1 36.Qa1 Ra1 37.Kb2 Rg1 38.Rc8 Kd7 39.Rg8 Rf1 40.f4 Rf2 41.Kc3 Rh2 42.Rb8 Rh4 43.Rb5 Ke6 44.Rb7 Rh3 45.Kd4 f6 46.Rb6 Kf7 47.Rf6 Kg7 48.Be7 h5 49.e6 Rh1 50.Rf7 Kg8 51.Bg5 h4 52.Rf6 Rd1 53.Ke5 h3 54.e7 Rd7 55.e8Q 1–0. Korobeynikov,Alexandr (1840) – Bakhmetov,Pavel (1955), Novokuznetsk RUS, Siberia Ch (m), 2013.

8.Bf3 0–0 9.0–0 c6 10.d3 a5 11.c3 Qe7 12.Nd2 Bc7 13.Re1 Qd6 14.g3 Ne5 15.Be2= Rad8 16.Qc2 h5 17.c4+= ab4 18.c5 Qe7 19.ab4 h4 20.g4 Ng6 21.b5 Nh7 22.bc6 bc6+= 23.Kg2 f5 24.Qa4 Rc8 25.f4 fg4 26.Bg4+= Bf4 27.ef4+/– Nf4 28.Kh1 Nd3 29.Re6 Qg5+= 30.Qd4 Nf2 31.Kh2 Ng4 32.hg4+= Nf6 33.Rg1+/– Rce8 34.Nf3 Qg6 35.Re5 Ne4 36.Rf5 Re7 37.Ne5 Qh6 38.g5 Qe6 39.Rf8 Kf8 40.Qd1 Kg8 41.Qh5 Ng3? 42.Qh4 Nf5 43.Qa4 d4 44.Qc4 Qc4 45.Nc4 Re2 46.Rg2 Re1 47.Rd2 Re4 48.Nd6 Rh4 49.Kg1 Rf4 50.Nf5 Rf5 51.Bd4 Rg5 52.Rg2 Rd5 53.Rg7 Kf8 54.Rg4 Kf7 55.Kf2 (55...Ke6 56.Ke3+–) 1–0. Mamuzic,Mirko (2230) – Andrijevic,Milan (2370), It (open) Senta, 2006.

8.Bf3 a5 9.b5 =+.

8.Bf3 b5

9.a4 ba4 10.c4 Bb4 (10...Rb8 11.cd5 ed5 12.Ra4 Bb4 13.Ra7=) 11.cd5 ed5 12.Nc3 (12.Qa4!? a5 13.Bf6 Qf6 14.Bd5=) 12...Nb6+= 13.Na4 Nc4 14.Bc3 a5 15.Qc2 0–0 16.0–0 Re8 (16...Bc3 17.Qc3 Qd6 18.Rfc1+=) 17.Rfc1 c6 18.d3 Na3 19.Qd1 (19.Qb2 Qd6=) 19...Qd6+= 20.Be2 Nb5 21.Bf6 Qf6 22.d4 Rab8 23.Ra2 Rec8 24.Rac2 Na3 25.Ra2 Qd6 26.Bd3 g6 27.Nc5 Nb5 28.Qf3 Ba3 29.Rcc2 Qe7 30.h4 Bb4 31.h5 Qd6 32.Ra1 Re8 33.g3 Rf8 34.Kg2 Na3 (34...Ra8 35.Nb7 Qe6 36.Nc5 Bc5 37.Rc5=) 35.Rcc1 Nb5 36.Ra2 (36.Rc2 Ra8=) 36...Rfe8+= 37.Rh1 (37.Nb3 Ra8+=) 37...Re7 (37...Nc3 38.Rc2 Bc5 39.dc5–/+) 38.Na6 Rc8 (38...Nc3 39.Raa1 Rbe8 40.Rhc1+=) 39.Qg4 Rf8 40.Nb4 ab4 (worse is 40...Qb4 41.Rb1 Qc3 42.Qd1 Nd4 43.ed4 Qd4 44.Ra5+/–) 41.Bb5 cb5 42.Rb1 b3 (42...Rc7 43.Ra5 Rb8 44.Qe2=) 43.Rb3+= b4 44.h6 (44.Ra5 Rb8=) 44...Rb7 45.Ra5 Rfb8 46.Rc5 Rd8 (46...f5 47.Qe2=) 47.Qd1 (47.Qg5 f6 48.Qg4 f5=) 47...Qf8 (47...Rdb8 48.Qc2 Qd7 49.Qa2=) 48.Qh1 Rb6 49.Qh4 (49.Qb1 Rdb8+=) 49...Qd6= 50.Ra5 Kf8 51.Ra7 Re8 52.Qg4 Rb5 53.Qf3 Re7 54.Qe2 Qc6 (worse is 54...Ra7 55.Qb5 Ke7 56.Rb4+–) 55.Ra2 Reb7 56.Rc2 (56.Qf3 Qe6=) 56...Qe6 57.Rc5 R5b6 (57...Rc5 58.dc5 Qc6 59.Qb2 d4 60.Kg1 Qc5 61.ed4=) 58.Qf3 Rb5 59.Kg1 Ke7 60.Qe2 (60.Qd1 Qd6=) 60...Rc5= 61.dc5 Qc6 62.Qb2 Qc5 63.Qe5 Kd7 64.Qf6 Qe7 65.Qa6 Kc7 66.Qa5 The isolani on b4 becomes a target (66.Rd3 Qe6 67.Qa5 Kd6=) 66...Kd6 67.Rd3 Qe5 68.Qd8 Kc5 (68...Ke6 69.e4 d4 70.Rd4+=) 69.Qa8 (69.Rd1 f5 70.Rb1 Kb5+–) 69...Rb6 (69...Qc7 70.Qh8+=) 70.Qf8 Kc6 71.Rd1 (71.Qf7?! b3 72.f4 Qa1 73.Kf2 Qa2 74.Ke1 b2 75.Qe6 Kc5 76.Qe7 Kb5 77.Qd7 Ka6 78.Qc8 Ka7 79.Qc7 Ka6 80.Qc8 Ka7 81.Qc7 Ka6 82.Qc8=) 71...Qe6 72.Qa8 Kc5 73.Qa5 Kc6 74.Rc1 Kb7 75.Ra1 Kc7 76.Qa7 Kc6 77.Qa8 Kc5 78.Qa5 (78.Qd8 b3+/–) 78...Kc6+= 79.Qa7 g5 80.Rc1 Kb5 81.Qa2 Rc6 82.Ra1 Kc5 83.Qa5 Kd6 84.Qb4 Kd7 (84...Ke5 85.Ra5+/–) 85.Qb1 Qe4 (85...Qg6 86.Ra7 Rc7 87.Qg6 fg6 88.Rc7 Kc7 89.g4+–) 86.Qb5+– Kd6 (86...Qe6 87.Ra7 Kd8 88.Qa5 Ke8 89.Ra8 Rc8 90.Rc8 Qc8 91.Qd5+–) 87.Qb8 Ke7 88.Qb7 Kd6 89.Qf7 Qg6 (89...Qe7 90.Ra7 Qf7 91.Rf7+–) 90.Qg6 hg6 91.h7 Rc8 92.Ra6 Kd7 (92...Kc7 93.Rg6 Rh8 94.Rg5 Rh7 95.Rd5+–) 93.Rg6 Rh8 94.Rg5 Rh7 95.Rd5 Ke6 96.e4 Re7 97.Kg2 Kf6 98.f3 Ra7 (98...Kf7 99.g4+–) 99.g4 Kg7 (99...Kf7 100.f4+–) 100.Kg3 Ra3 101.Rf5 Kg6 1–0. Komodo 9 64_bit 4CPU – Equinox 3?20 64_bit 4CPU, CCRL, 2015.

9.c3 Nb6+= 10.d4 e5 11.0–0 e4 12.Be2 c6 13.Qc2 Bc7 14.a4 (better is 14.Nd2!?+=) 14...Na4 15.Bc1 Qd6 16.g3 Nb6 17.h4 (17.Nd2 h5 18.f4 g5–/+) 17...h5 18.Kg2 Rh6 19.Bd1 Rg6 20.Qe2 Ng4 21.Kh1 Qe6 (21...Nf2 22.Qf2 Rf6 23.Qe1 Rf1 24.Qf1 Qg3 25.Qe2–+) 22.Kg2 (22.Kg1 Nf6 23.Kg2 Qg4 24.Qg4 hg4–/+ (24...Rg4?! 25.Bg4 Ng4 26.Ra6=)) 22...Nc4–+ 23.Ra6 Qc8 24.Ra1 Nd6 25.f3? (better is 25.Nd2–+) 25...Nf6 26.f4 Nf5 27.Qe1 Nh4 (27...Ng3 28.Qg3 Rg3 29.Kg3–+) 28.Kh2 0–1. Equinox 3?20 64_bit 4CPU – Komodo 9 64_bit 4CPU, CCRL, 2015.

9.d3 a5 10.c4 ab4 11.cb5 ba3 12.Na3 Qb8 13.0–0 0–0 14.e4 de4 15.Be4 Ne4 16.de4 Rd8 17.Nc4 Bf8 18.Ra8 Qa8 19.Qf3 Qa4 20.Ne5 Ne5 21.Be5 Qb5 22.Bc7 Rc8 ½–½. Kasparov,Sergey (2475) – Dvirnyy,Daniyl (2535), 2012. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nd7 4.e3 Ngf6 5.Be2 e6 6.a3 Bd6)

9.d4 c6 10.Bc3 0–0 11.Nd2 Nb6 12.Nb3 Ne4 13.Be4 de4 14.0–0 f5 15.Qe1 Bc7 16.Nc5 Rf6 (16...Qd6 17.f4=) 17.Na6 (17.a4 Qd6 18.g3 ba4 19.Na4 Nc4=) 17...Rg6 (17...Bd6 18.f3+=) 18.Kh1 (18.Nc7 Qc7 19.f3 ef3 20.Rf3 Qd8=) 18...Bd6+= 19.Rg1 Nc4 20.g3 (20.a4 Qh4 21.Nc5 f4 22.Ne4 f3–+) 20...e5 (20...Qc8 21.Nc5–/+) 21.Nc5 (21.de5 Ne5 22.Be5 Be5+=) 21...Rh6 22.de5 (22.Kh2!?–/+) 22...Bc5–+ 23.bc5 Qc8 (23...Rh3 24.Kg2 Rh6 25.Rh1 Rh1 26.Qh1–+) 24.Kh2 (24.Qf1 Qe6–/+) 24...f4 25.g4 fe3 (25...Qf8 26.Bd4–/+) 26.fe3 Qf8 27.Bd4 Qe7 Attacking the isolated pawn on e5 28.Qg3 Nd2 29.Kh1 (29.Rgd1 Nf3 30.Kg2 Ng5–/+) 29...Rf8–/+ 30.g5 Rg6 31.Qg4 (better is 31.h4!?–/+) 31...Nf3–+ 32.h4 Ng1 33.Rg1 h6 (33...a5 34.h5 Re6 35.Qe4–+) 34.Qe4 Qe6 35.Qg4 Qg4 (35...Qd5 36.Kh2–/+) 36.Rg4 Rf2 37.Rf4 Re2 (37...Rc2 38.gh6 Rh6 39.e6 Re6 40.Rg4–+) 38.gh6–/+ Rh6 39.Rg4 Re6 (39...Kf8 40.e6 Rh7 41.Kg1–/+) 40.Rg2+= Rg2 41.Kg2 Kf7 42.Kf3 Re7 43.e6 (43.h5 Ke6–/+) 43...Ke6–/+ 44.Kg4 Rf7 45.h5 (45.c3 Rf2 46.Kg3 Rf1–/+) 45...Rf1 (45...Rf2 46.Kg3 Rc2 47.Bg7 Rc5 48.h6–+) 46.Kg3 (46.e4 Rd1 47.c3 Kf7–/+) 46...Kf7 47.Be5 (better is 47.e4!?–/+) 47...Rf5–+ 48.Bd4 Rh5 49.Kg2 Ke6 50.Kg1 (50.e4 Rh4 51.Kf3 Rh3 52.Ke2 g5–+) 50...g5 51.Kg2 (51.c3 Kf5–+) 51...g4 52.Bg7 Rc5 53.c3 0–1. NirvanaChess 2?1c 64_bit – Critter 1?6a 64_bit, CCRL, 2015.

9.Qe2 a6 10.d3 Nb6 11.0–0 0–0 12.Nc3 e5 13.Qd2 c6 14.e4 Rc8 15.Rae1 (15.Bc1 Qc7=) 15...Qe7 (15...d4 16.Ne2+=) 16.Ba1 (16.ed5 cd5 17.Re2 Qd7+=) 16...Rfd8 17.ed5 cd5 18.Ne2 Re8 19.Ng3 g6 (19...Qd7 20.Re2+=) 20.Bd1 (20.Re2 Qc7=) 20...Qd8 21.f4 ef4 22.Re8 Ne8 23.Ne2 g5 24.g3 (24.Re1 Nd7=) 24...Qd7 (24...fg3!? 25.Qe3 Bc7+=) 25.Bd4= Bc7 26.gf4 (26.Kg2 Nd6 27.Nc3 Nf5=) 26...Qh3 27.Rf2 Ng7 28.Rh2 Qe6 29.Rg2 Nd7 30.Rg5 f6 31.Rg2 Kh8 32.Bf2 Nf5 33.Nc3 (33.Nd4 Nd4 34.Bd4 Bb6 35.Bb6 Qb6 36.Kh2 d4=) 33...d4+= 34.Qe2 Qe2 35.Ne2 Exerts pressure on the isolated pawn 35...Rd8 (35...Bb6 36.Kf1=) 36.Nd4 Nd4 37.Bd4 Bf4 38.Kf2 (38.Rf2 Be5 39.Be5 fe5+=) 38...Bc1= 39.Bf3 Ne5 40.Bc5 Nd7 (40...Ba3?? 41.Be7 Ng6 42.Bf6 Kg8 43.Bd8 Bb4 44.Bb7+–; 40...Nf3? A) 41.Kf3?! Rd5= (41...Ba3 42.Be7 Bb2 43.Bd8+–); B) 41.Be7 Rf8 42.Bf8+– (42.Kf3?! Rf7 43.Re2 Ba3+=)) 41.Bd6 Ba3 42.Bb7 Re8 43.Kf1 (43.Ba6? Re6 44.Bb5 Rd6–/+) 43...h6 44.Bg3 (worse is 44.Ba6 Re6 45.Bb5 Rd6–+) 44...Bb4 45.Ba6 Ne5 46.Bb5 Rb8 47.Ba4 Bc3 48.Bb3 Rb5 49.Ke2 Nc6 50.Bf2 Re5 51.Kf1 Nd4 52.Bd4 Bd4 53.Rg4 Ba1 54.Ra4 Bb2 55.d4 Re4 56.Ra8 Kg7 57.d5 Be5 58.Ra7 (58.c4 Re3 59.Ba4 Rc3+=) 58...Kg6 59.c4 Rf4 60.Ke2 Re4 61.Kd2 Rd4 62.Ke3 Rg4 (62...Rh4 63.Rb7 Rh3 64.Kd2 Rh2 65.Kc1 f5=) 63.Ra3 (better is 63.Rb7!?+=) 63...Kg5 64.Ke2 (64.Kf2 Rg3 65.c5 f5=) 64...Rg2–/+ 65.Kf1 Rg3 66.c5 (66.d6 Bd6 67.Ra5 Kf4 68.Bc2–/+) 66...Bd4 (better is 66...Bb2 67.d6 Ba3=) 67.c6 Be5 68.Ra5? (better is 68.d6 Bd6 69.Ra5 Kf4 70.Ra4 Kf5 71.Ra5 Be5 72.Bc4+=) 68...Bd6?? (68...Rb3 69.d6 Kf4 70.Re5 fe5+–) 69.Bd1 Kf4 (69...h5 70.Kf2+=) 70.Kf2 Rd3 71.Ra4 Ke5 72.Bf3 Rd5 73.c7 Bc7 74.Bd5 Kd5 75.Kf3 Bd6 76.Ra5 Ke6 77.Rh5 f5 78.Rh1 Bf8 79.Rh3 Kf6 80.Rh2 Kg5 81.Rh1 h5 82.Rg1 Kf6 83.Rg8 Bg7 84.Rd8 h4 85.Kg2 Ke6 86.Re8 Kf7 87.Re2 Bd4 88.Ra2 Ke6 89.Kh3 Bf6 90.Re2 Kd5 91.Re8 Kd4 92.Re1 Kd5 93.Re2 Kd4 94.Re8 Kd5 ½–½. Critter 1?6a 64_bit – NirvanaChess 2?1c 64_bit, CCRL, 2015.

7.h3 Bh5

8.0–0 a5 =.

8.c4 c5 9.cd5 ed5 10.bc5 Nc5 11.Qa4 0–1. combijack (1760) – bwlch_y_ffridd (1760), gameknot.com, 2010.

8.d4 a5 9.b5 +=.

8.d4 Ne4 9.Nbd2 f5 10.c4 c6 11.0–0 Qf6 (11...0–0 12.Qc2+=) 12.Rc1 (12.Ne4 de4 13.Ne5 Be2 14.Nd7 Bd1 (worse is 14...Kd7 15.Qe2 Qf7 16.b5+/–) 15.Nf6 gf6 16.Rfd1 Ke7=) 12...g5 (better is 12...0–0!?+=) 13.Ng5+= Ng5? (better is 13...Be2 14.Nge4 Bd1 15.Nf6 Nf6 16.Rfd1 Kf7+=) 14.Bh5+– Ke7 15.f4 (15.c5 Bc7 16.f4 Ne4+–) 15...Nh3 16.gh3 Rag8 17.Kh1 Rg3 18.Rf3 Rhg8 19.c5?? (better is 19.Rg3 Rg3 20.Nf1 Rh3 21.Kg2+–) 19...Bf4+/– 20.ef4 Qh4+– 21.Qe2 Qh5 22.Qf1+– Nf6 23.Rg3 Rg3 24.Rc3 Rg8 25.Bc1 Qg6 26.Kh2 Qh6 27.Nf3 Ne4 28.Rb3 White prepares the advance b5 28...Rg3? 29.b5 cb5 30.Rb5 Kf6 31.Rb7 Qh5 32.Ng5 Rg5 33.fg5 Kg6 34.Qb5 f4 35.Qe8 Kg5 36.Bf4! 1–0. zunsurfer (2045) – queensservant (1785), gameknot.com, 2014.

8.g4 Bg6 9.Nh4 (9.g5 Nh5=) 9...0–0 (9...Be4!? 10.Nf3 0–0–/+) 10.Ng6= fg6 11.c4 (11.g5 Ne4 12.f4 Qg5–+) 11...Ne4 12.Rf1 (12.cd5 Nf2 (12...ed5?! 13.Bf3–/+) 13.Qb3 Nh1 14.de6 Qh4 15.Kd1 Nf2 16.Kc1 Nb6–+) 12...Qh4 (12...Ng3 13.Rg1 Ne2 14.Qe2–/+) 13.Bf3 (13.Qa4 Nb6 14.Qc2 Nf2 15.Qb3 Nd3 16.Kd1 Rf1 17.Bf1 dc4 18.Qc3 Qe1 19.Kc2–+) 13...Ne5 (13...Qh3!? 14.Be4 de4–/+) 14.Be5=+ Be5 15.d4 Bh2 (15...Ng5 16.Bg2 Bg3 17.Qc2 Rf2 18.Rf2–/+) 16.Be4 (16.cd5 ed5 17.Qb3 Rf3 18.Qd5 Kh8 19.Qe4 Raf8=) 16...de4 17.Ra2 (17.Nd2!?+=) 17...Qh3 (17...Rf3 18.Qe2 Qh3 19.Nd2=) 18.Nc3 Qg2 19.f4?? (19.Qc2 a5 20.Qe4 Qe4 21.Ne4 ab4 22.f4 ba3 23.Kd1+=) 19...Bg3–+ 20.Rff2?? (20.Raf2 Bf2 21.Rf2 Qg1 22.Ke2 Qg4 23.Kd2 Qh4–+) 20...Bf2 (better is 20...Qg1 21.Kd2 Qf2 22.Qe2 Qf3–+) 21.Rf2 Qg1 22.Ke2 Qg4 23.Kd2 Qf5 24.Qh1 g5 25.Ne4 gf4 26.Rf4 Qg6 27.Rh4 Rf5 28.Qh3 h5 29.Qh2 Raf8 30.Ke2 Qf7–+ 31.Qg2 Rf1 (32.Rh2 Ra1–+; 31...e5!? 32.d5–+) 0–1. Kuhn,H – Schaefer,Frank, SEM–ch Gr–D Dudweiler, 1995.

6.a3 Be7

7.0–0 0–0 =.

7.c4 0–0 8.d4 (8.h3 Bf5=+) 8...dc4 9.Bc4 a5 10.b5 c5 11.dc5 Bc5 (11...Nc5 12.0–0=) 12.0–0 (12.h3 Bf5=) 12...Rc8 13.Nbd2 Qe7 (13...Qb6 14.h3 Bh5 15.Qa4=) 14.Qa4 (14.h3!? Bh5 15.Qa4=) 14...Nb6 15.Qb3 (15.Qa5 Bf3 16.gf3 Ra8=+) 15...Rfd8 16.Rac1 Bf3 (16...a4 17.Qa2=+) 17.Nf3= a4 18.Qa2 Ne4 (18...Nfd5 19.Rfe1=) 19.Be2 Nd2 20.Rfd1 Nb3 21.Rd8 Rd8 22.Rd1 h6 (22...Rd1 23.Bd1 Nc4 24.Bb3 Nb2 25.Qb2 Ba3 26.Qc3 ab3 27.Qb3=) 23.Bd3 Bd6 24.Nd4 Nc5 25.Bc2 Qh4 26.Nf3 Qe7 27.g3 Rc8 28.Nd4 Rd8 29.Qa1 Nc4 30.Bc3 Qc7 31.Bb4 Bf8 32.Qa2 Nb6 33.Rc1 Rc8 34.Be4 Qd7 35.Bb1 g6 36.Rd1 Qd5 37.Qe2= Qg5 38.Ba2 Nd5 39.Qf3 Nb4 (39...Rd8 40.Ba5 Rd7 41.Kh1=) unclear. Wilk,Adam (2035) – Smolin,Stefan, Poland–chT reg Poland, 1995.

7.c4 dc4 8.Bc4 Nb6 9.Be2 0–0 10.d4 c6 11.Nc3 Nbd5 12.0–0 Nc3 13.Bc3 Nd5 14.Bd2 f5 15.Ne5 Be2 16.Qe2 Bd6 17.f3 Qc7 18.e4 Be5 19.de5 Qe5 20.Qc4 fe4 21.fe4 Nf4 22.g3 Qd4 23.Qd4 Ne2 24.Kg2 Nd4 25.Bf4 Rad8 26.Ra2 Nb5 27.Rf3 Rd1 28.Re3 Rfd8 29.a4 Nd6 30.Ree2 Nf7 31.Be3 a6 32.b5 ab5 33.ab5 cb5 34.Rab2 Nd6 35.Bf4 Rd4 36.e5 Ne4 37.Rec2 b4 38.Rc7 R8d7 39.Rd7 Rd7 40.Rb4 Nc3 41.Rb3 Nd5 42.Kf3 Kf7 43.Ke4 b5 44.Bd2 b4 45.Bb4 Rb7 (45...Nb4?! 46.Rb4 Rd1 47.g4=) 46.Rf3 Kg6 (better is 46...Nf6 47.ef6 Rb4 48.Ke5 Rb5 49.Kd4 gf6–/+) 47.Bd6= ½–½. Koester,Roman (2120) – Wolff,Peter (2015), Oberliga Ost–B, 2007.

7.d3 0–0 8.Nbd2 a5 9.b5 c6 10.a4 Qc7 11.h3 Bh5 12.g4 Bg6 13.Nh4 Rac8 14.Rc1 Nc5 15.Ng6 fg6 16.c4 Nfd7 17.d4 Rf2 18.Kf2?? (18.dc5 Qg3 19.Nb3 Rf1 20.Kd2 Rd1 21.Kd1 Qe3 22.Rc3–+) 18...Bh4–+ 19.Kf1 Qg3 0–1. Gurgenidze,Bukhuti (2275) – Jobava,Baadur (2430), GEO–ch, 2000. (=1.Nf3 Nf6 2.b4 d5 3.e3 Bg4 4.Bb2 Nbd7 5.Be2 e6)

7.d4 0–0 8.Nbd2 c6 9.c4 a5 10.b5 cb5 11.cb5 Qb6 12.Qa4 Rfc8 13.0–0 Qd8 (13...Ne4 14.Rfe1+=) 14.Rfc1= Nb6 15.Qd1 Bd6 16.Ne5 (16.h3 Bf3 17.Nf3 Qe7=) 16...Be2+= 17.Qe2 Na4 18.Ndf3 Ne4 19.Rc2 (19.Rc8 Rc8 20.h4 Qe8–/+) 19...f6–/+ 20.Nd3 Qe7 21.Rc8 Rc8 22.Bc1 (22.Rc1!? Rc1 23.Bc1–/+) 22...Qd7–+ 23.Nd2 Nac3 24.Qe1 (24.Qf1 Qb5 25.Nf3 Qb3–+) 24...Qb5 25.Ne4 Ne4 26.Qf1 (26.Qd1 Nc3 27.Qf1 Qe8–+) 26...Rc3 27.Ne1?? (27.Nf4 Qf1 28.Kf1–+) 27...Bh2! (27...Bh2 28.Kh2 Qf1–+) 0–1. Welch,David (1715) – Homolka,Vincent (1815), e2e4.Org.uk Hinckley Major, 2012. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nd7 4.a3 Ngf6 5.e3 e6 6.Be2 Be7)

6.b5 Bd6

7.a4 0–0 8.0–0 Qb8 9.h3 Bh5 10.Nc3 =.

7.a4 0–0 8.0–0 c5 9.d3 (9.h3 Bh5+=) 9...Qc7 (9...Bf3 10.Bf3 Qc7 11.h3+=) 10.Nbd2 Bh5 (10...Bf3 11.Nf3 e5 12.Nd2+=) 11.c4= a6 12.h3 Bg6 (12...ab5 13.ab5 Ra1 14.Qa1=) 13.Qb3 Rfe8 (13...b6 14.ba6 Ra6 15.Nh4=) 14.Rfc1 (14.Nh4 Bh2 15.Kh1 Be5=) 14...ab5 15.ab5 h6 16.Ra2 (16.Qc2 Qb6=) 16...Ra2 17.Qa2 Rb8 (17...Bf5 18.Ra1=) 18.Ra1 Rd8 19.Qa5 (19.cd5 ed5 20.Qa5 b6=) 19...Qc8 (19...b6 20.Qa7=) 20.Ra4 (20.Qc3 Qc7=) 20…Qb8 (20...d4 21.ed4 Bc7 22.Qc3 cd4 23.Qc2= (23.Qd4? Nb6 24.Qh4 Na4 25.Bf6 gf6–+)) ½–½. Allesnehmer – Martinio, playchess.de, 2002.

7.a4 0–0 8.0–0 e5 9.Ba3 Ba3 10.Na3 c5 11.c4 (11.d4 e4 12.Ne5 Ne5 13.de5 Be2 14.Qe2 Nd7=+) 11...e4 12.Ng5 Be2 13.Qe2 h6 14.Nh3 dc4 (14...Ne5 15.Nf4=+) 15.Nc4 Nb6 16.a5 Nc4 17.Qc4 b6 18.ab6 ab6 19.Ra8 Qa8 20.d4 ed3 21.Qd3 Rd8 22.Qc3 Ne4 23.Qe5 Re8 24.Qc7 Qd8 25.Qc6 Nc3 26.Ra1= Kh7 27.Nf4 g5 28.Nh5 Re6 29.Qf3 Nb5?? (Better is 29...Kg6=). Kern – Flothmann,A, Hessen clubgame, 1994.

7.Nc3 0–0 8.0–0 c5 9.bc6= bc6 10.Rb1 Qc7 11.h3 Bf3 12.Bf3 Rab8 13.Qe2 Qa5 14.Ba1 Bb4 15.Rb3 Nc5 16.Rb2 e5 17.a3 Ba3–/+ 18.Ra2 e4 19.Bg4 h5 20.Bf5= g6 21.Nb1+/– Qd8 22.Ra3 gf5 23.Ra7 Ncd7 24.f3 Qb6 25.Ra6 ef3 26.gf3 Qc7 27.Bd4 Kh7+= 28.f4 Rg8 29.Kh1 Rg3+= 30.Kh2 Rbg8 31.Nc3 Qd6 32.Rfa1 Kh6 33.Qf2 R3g6 34.d3 Ne8 35.Ne2 Nc7+= ½–½. Van Rooijen,Peter (1700) – Zhelezny,Andrey (1625), internet, 2003.

7.c4 0–0 8.Nc3 dc4 9.Bc4 Ne5 10.Be2 Bf3 11.gf3 =+.

7.c4 0–0 8.Nc3 c6 9.a4 Bf3 10.gf3 e5 11.d4 Re8 12.Rc1 ed4 13.Qd4 c5 14.Qh4 d4 15.Nd1 Ne5 16.f4 Ng6–/+ 17.Qg3 d3 18.Bd3 Nf4–+ 19.Bh7 Kh7 20.Qh4 Kg8 (21.Bf6 Ng2 (21...gf6?! 22.Rg1 Ng6 23.Nc3–/+; 21...Qf6?! 22.Qf6 gf6 23.Kd2–/+) 22.Ke2 Nh4 (22...Qf6 23.Qf6 gf6 24.Rg1+–) 23.Bd8 Rad8–+; 20...N6h5 21.Qd8 Rad8 22.Rb1–+) 0–1. Bakhtadze,Levan – Izoria,Zviad, GEO–ch U18 Tbilisi, 2001.

7.c4 0–0 8.cd5 Nd5 9.0–0 N7b6 =+.

7.c4 dc4 8.Bc4 Ne5 9.Be5 Bf3 10.Qf3 Be5 11.d4 +/–.

7.d3 0–0 8.0–0 e5 =+.

7.d3 0–0 8.Nbd2 a6 9.ba6 Ra6 10.0–0 –/+.

7.d3 0–0 8.Nbd2 c6 9.a4 Qc7 10.h3 Bh5 11.0–0 Ne5 12.Ne5 Be2 13.Qe2 Be5 14.d4 Bd6 15.c4 Bb4 16.Rfc1 Bd2 17.Qd2 Ne4 18.Qd3 Qd7 19.Rc2 Rfc8 20.Ba3 f5 21.Rac1 Kf7 22.Qb3 a6 23.cd5 cd5 24.Qb4 a5 25.Qb3+= Ke8 26.b6 Rc2 27.Rc2 Rc8 28.Rc8+/– Qc8 29.Qb5 Kf7 30.Bc5 Nd2 31.Qa5+/– Nc4 32.Qb5 Kf6 33.a5 e5 34.a6 e4 35.a7+– Ke6 36.Qa4 Qa8 37.Qb4 Qe8 38.Bf8 g5?? 39.a8Q! (39...Kf7 40.Qe8 Ke8 41.Qe7#) 1–0. Labahn,Wolfgang – Tschanter, Paderborn GER, 1989.

7.d3 c6 8.a4 0–0 9.0–0 Qc7 10.Nbd2 a6 11.c4 ab5 12.ab5 cb5 13.cb5 Qb6 14.d4 Ra1 (14...Rfc8 15.Bd3+=) 15.Qa1= Bb4 (15...Ne4 16.Bd3=) 16.Bd3 Rc8 17.Rc1 Rc1 18.Qc1 Qd8 (18...Bf5 19.Qc8 Nf8 20.Bc3=) 19.Qc2 Bh5 20.Ne5 Bd6 21.h3 Qc7 (21...Bb4 22.g4 Bg6 23.Ng6 hg6 24.Bc3=) 22.Qc7 Bc7 23.g4 Bg6 24.Ng6 hg6 25.Nb3 b6 26.f3 Kf8 27.Kf2 Ne8 28.e4 de4 (28...Bf4 29.Ba3 Bd6 30.Bc1+/–) 29.fe4 Bd6 30.Nd2 Nc7 31.Nf3 Be7 32.g5 Bd6 ½–½. Porkolab,S (1935) – Peczely,G (1875), 28th Budapest Spring Festival, 2012.

7.d4 0–0 8.0–0 a6 9.Ba3 =+.

7.d4 0–0 8.0–0 c5 9.dc5 Nc5 10.Nbd2 Qe7 11.c4 Bf5 12.cd5 ed5 13.Nd4+= Bg6 14.N2f3 Rac8 15.a4 Nfd7 16.a5+= Ne5 17.Ne5 Qe5 18.g3 Rfe8 19.Ra2 Qe7 20.Bg4 Rcd8 21.Nf5+= Bf5 22.Bf5 Be5 23.Ba3 g6 24.Bb1 d4= 25.Qf3 b6 26.Re1 Qd7 27.ab6= ab6 28.Bc5 bc5 29.Bd3 Bg7 (29...de3 30.Re3 Qd6 31.Bc4+=) ½–½. Van Rooijen,Peter (1715) – Zhelezny,Andrey (1980), internet, 2003.

7.d4 0–0 8.Nbd2 c5 9.bc6 bc6 10.c4 Rb8 11.Bc3 Qc7 12.c5 Be7 13.Qa4 Ne4 14.Ne4 de4 15.Nd2 Be2 16.Ke2 Nf6 17.Qc2 Nd5 18.Ne4 f5 19.Nd2 Bf6 20.f4 g5 21.g3 gf4 22.ef4 (22.gf4 Kh8+/–) 22...Rb5 23.Rab1 Rc5 24.dc5 Nc3 25.Ke3 e5 26.Nc4 (26.Qb3 Kh8 27.Rbe1 ef4 28.gf4 Nd5 29.Ke2 Qf4 30.Kd1–+) 26...ef4–/+ 27.Kf3 Qg7 28.Rbf1 Qg4 29.Kg2 f3! 30.Rf3 Qc4 31.Qf5 Bg7 32.Qd3 Qa2 (32...Qc5?! 33.Rf8 Qf8 34.Rc1–/+) 33.Kh3 Qe6 34.Kg2 Rf3 35.Qf3 a5 36.Qh5? (better is 36.Ra1 a4 37.Qd3–+) 36...Qe4 37.Kh3 (37.Qf3 Qc2 38.Qf2 Qf2 39.Kf2–+) 37...Qe6 38.g4?? (38.Kg2 Nd5 39.Qh4–+) 38...a4 (38...Qe3 39.Kh4 Qf2 40.Kh3 Qf3 41.Kh4 h6–+) 39.Ra1 Qe3 40.Kh4 Ne2 41.Ra4 Qf2 0–1. Pikulinski,Andrzej (2205) – Dziuba,Marcin (2535), Lublin op Poland, 2009.

7.d4 a6 8.ba6 ba6 9.Nbd2 =+.

7.d4 Nb6?! 8.a4. W Labahn.

7.d4 c5 8.0–0 0–0 =+.

7.d4 c5 8.bc6 bc6 9.c4 Rb8 10.Qc2 Bf5–+ 11.Qc1 Qb6 12.Ba3 Qa5 13.Nfd2? Rb1 (14.Rb1 Ba3–+ (14...Qa3?! 15.Qa3 Ba3 16.Rb7–/+)) 0–1. Zoellner,R (1860) – Hohn,A (2105), Lichtenrader Autumn, 2005.

7.d4 c6 8.a4 =+.

7.d4 Bf3 8.Bf3 Bb4 9.Bc3 =.

7.Kf1 0–0 8.g3 c6 9.Nc3 Ne4 10.Rb1 Bh3 11.Kg1 cb5 12.Nb5 Be7 13.Bd4 a6 14.Nc3 Qc7 15.Qc1 b5 16.a3 Rfc8 17.Qb2 Nef6 18.Ng5 Bf5 19.f4 Rab8 20.Kg2 Ne4 21.Nge4 Be4 22.Ne4 de4 23.Bg7 Qc2 24.Rhc1 Qb2 25.Bb2 (25.Rb2?? Rc1 26.Bd4 Rbc8–+) 25...Rc1 26.Rc1 Nc5 27.Bc3 Nd3 (better is 27...Na4!? 28.Be5 Rd8=) 28.Bd3+/– ed3 29.Bb4 Bb4 30.ab4 Kg7 31.Kf3 Rd8 32.Rc6 Ra8 33.Ke4 a5 34.ba5 Ra5 35.Rb6 Ra3 36.Rb5 f5 37.Kd4 Kf6 38.Rb7 h5 39.Rb8 Ra1 40.Rh8 Kg6 41.Rg8 Kf6 42.Rg5 e5 (better is 42...h4 43.gh4 Rf1+–) 43.Kd3 e4 44.Kc3 Ra5 (44...h4 45.gh4 Rc1 46.Kd4+–) 45.Rh5 Rd5 (45...Rc5 46.Kd4 Rc2 47.Rh6 Kf7 48.Rd6 Rd2 49.Ke5+–) 46.g4! Rd3 (46...fg4 47.Rd5 Pinning (47.Rd5 Deflection)) 47.Kc2 Rd5 (47...fg4 48.Rg5 Rd7 49.Rg4 Rc7 50.Kd1 Ra7+–) 48.Rf5 Rf5 49.gf5 Kf5 50.Kc3 1–0. Janek – Zirao, internet, 2016.

7.h3 Bh5 8.0–0 0–0 9.a4 e5 10.c4 (10.Nc3 Qe7+=) 10...dc4 (10...e4 11.Nd4 Be2 12.Qe2+=) 11.Na3= e4 12.Nd4 Be2 13.Qe2 Ne5 14.Nc4 Nd3 15.Bc3 Nd5 16.Nf5 (16.f3 Nc3 17.dc3 Nc5+=) 16...Nc3= 17.dc3 Qf6 18.Ncd6 cd6 19.Qg4 d5 20.f3? (20.Nd4 Qe5+=) 20...Ne5 (better is 20...h5!? 21.Qh5 g6 22.Nh6 Kg7 23.Qd5 Kh6–+) 21.Qf4–/+ ef3 22.gf3 (22.Rfd1 g5 23.Nh6 Qh6 24.Qe5 Rae8+=) 22...Rfe8 (22...Nd3 23.Qg4 Rac8 24.Ra3–+) 23.Ra2 (23.e4–/+) 23...Ng6?? (23...Nd3!? 24.Qg4 Rac8 25.Rc2–+) 24.Qg4? (better is 24.Nh6!? Kf8 25.Qf6 gf6 26.Rd2=) 24...Re5 25.e4 Rae8 26.Raf2 Ne7 27.f4? (better is 27.Ng3!? Rg5 28.Qd7–/+) 27...Re4–+ 28.Ng3 Re3 (28...Ra4 29.Qd7 Kf8 30.Re2 Qc3 31.Nf5–+) 29.f5 h6?? (29...Qc3 30.Rg2 g6 31.Qf4–+) 30.h4? (better is 30.Nh5 Qg5 31.Qg5 hg5 32.f6+=) 30...Qe5 (30...Qc3 31.Rg2 Re1 32.Re1 Qe1 33.Kh2–+) 31.Rg2 Kh8 (31...Qc3 32.f6 Ng6 33.h5+=) 32.f6 Ng6?? (better is 32...gf6 33.Qf4 Qf4 34.Rf4 Re6–+) 33.h5+/– Nf8?? (better is 33...Re1 34.Re1 Qe1 35.Kh2 Qc3+/–) 34.Qg7 1–0. Nadanian,Ashot (2425) – Kobalia,Mihail (2650), Khanty–Mansiysk RUS, World Blitz Ch, 2013.

7.0–0 0–0

8.d3 Qe7 9.Nbd2 e5 (9...a6 10.a4 (10.Nd4 Be2 11.Qe2 ab5 12.Nb5 h6 13.e4 de4 14.Ne4 Ne4 15.Qe4; 10.c4 ab5 11.cb5 c6 12.h3 Bh5 13.bc6 bc6 14.Nd4 Be2 15.Qe2) 10...ab5 11.ab5 h6 12.h3 Bf5 13.Nd4 Bg6 14.N4f3 e5 15.Nb3) 10.c4 (10.h3 Bf5 11.a4 h6 12.Nb3 Bb4 13.c3 Bd6 14.Nh4 Bh7 15.Rc1; 10.a4 h6 11.h3 Bf5 12.Nb3 Bb4 13.Nh4 Bh7 14.Qc1 e4 15.Nd4; 10.Ng5 Be2 11.Qe2 h6 12.Ngf3 a6 13.a4 ab5 14.ab5 Nc5 15.d4) 10...e4 (10...a6 11.h3 Be6 12.Qc2 ab5 13.cb5 g6 14.a4 b6 15.Nb3) 11.Ne1 (11.Nd4 Qe5 12.g3 Bh3 13.Re1 Nc5 14.de4 de4 15.Qc2) 11...Be2 12.Qe2 Nb6 (12...c6 13.bc6 bc6 14.cd5 cd5 15.de4) 13.cd5 (13.Rd1 ed3 14.Qd3 a6 15.Bf6) 13...Nbd5 14.de4 Ne4 15.Bg7 (15.Ne4+=) 15...Kg7 16.Qg4 Ng5 17.h4 Ne3 (17...Be5 18.Rb1=) 18.fe3 Qe3 19.Rf2 Bg3 20.Qg5 Qg5 21.hg5 Bf2 22.Kf2 Rad8 (22...a6!?=) 23.Nef3+= Rfe8 24.Rc1 Re7 25.Rc4 Rd5 26.a4 h6 (26...a6 27.ba6 ba6 28.Ne4+/–) 27.gh6 Kh6 28.Ne4 b6? (better is 28...Kg7+/–) 29.Nf6+– Rd8 30.Ng4 (better is 30.Rg4!? Re6 31.Ng8 Rg8 32.Rg8 c5+–) 30...Kg7 31.Nge5 Rde8 32.Nc6 Re2 33.Kg3 R8e4 (33...R8e6!? 34.Ncd4 Rg6 35.Kh3 Reg2 36.Nf5 Kf6+–) 34.Ncd4+– Kg8 35.Rc7 Re7 36.Rc8 (36.Ne2?! Rc7 37.Ned4 Rc4+/–) 36...Re8 37.Rc4 R2e4 38.Ng5 R4e5 39.Ndf3 Rc5 40.Rd4 Rec8 41.Rg4 Rc4 42.Ne4 Kf8 43.Ne5 (43.Rf4 Ke7 44.Nfg5 Rf8+–) 43...Ra4+/– 44.Rf4 Rc7 45.Ng6 Kg7 46.Nh4 Ra3 ½–½. Piriyev,Maksat (2015) – Simacek,Pavel (2470), 23rd ECC Men, Kemer TUR, 2007.

8.d4 c5 9.dc5 Nc5 10.Nbd2 Na4 11.Qc1 Ne4 12.Re1 Bf3 13.Nf3 Bb4 (13...Nb2?! 14.Qb2 Qa5 15.a3–/+) 14.Rf1 Nb2 (14...Nb2 15.Qb2 Bc3–+) 0–1. Kappel,Ray – Burkett,Max (2140), WC–2015–P–00010, 2011.

8.d4 c6 9.bc6 bc6 10.c4 Qb8 11.Qc2 Bf3 12.gf3 Bh2 13.Kg2 Bd6 14.c5 Be7 15.Rh1 Re8 16.Bd3 g6 17.Nd2 Bf8 18.Rh3 Bg7 19.Rah1 Qd8 20.f4 Rb8 21.Nf3 Nf8 22.Ne5 Qc7 23.Bc3 Ne4 24.Be4+= de4 25.Qe4 Be5 26.fe5 Rb7 27.f4 Qd7 28.Kf3 Qd5 29.Qd5 ed5 30.f5 gf5 31.Kf4 Re6 32.Kf5 Rg6 33.Rh4 Re7 34.e4+= Ree6 35.ed5+/– cd5 36.R1h2 Kg7 37.Ba5+/– Rh6? 38.Rh6+– Rh6 39.Rh6 Kh6 40.e6! Ne6 41.Bd2 Kh5 42.c6 (42.c6 Nd4 43.Ke5 Nc6 44.Kd5 Ne7 45.Ke5–+) 1–0. Weigel,Hans Juergen (2010) – Hofschroer,Joachim, Hamburg Seniors op, 2004.

8.h3 Bf3 9.Bf3 a6 10.c4 ab5 11.cb5 c5 12.bc6 bc6 13.d4 Qb6 14.Qd2 Rab8 15.Bc3 c5 16.Ba5 (16.dc5!? Nc5 17.Bf6 gf6 18.Nc3=) 16...Qa6+= 17.Be2 Qa8 18.a4 Ne4 19.Qe1 cd4 20.ed4 Qa7 21.Na3 Qd4 22.Nb5 Qe5 23.Nd6 Qd6 24.Bb5 Rfc8 25.Bb4 Ndc5 26.f3 Ng3 27.Rf2 Qb6 28.Kh2 Nf5 29.Rb1 Qa7 30.Rc2 (30.Bc5 Qc5 31.f4 Ne3–+) 30...Na4 31.Rc8 Rc8 32.Ba5 Nc5 33.Be2 Nd4 34.Bb6 Qb8 35.Kh1 Ne2 36.Qe2 (36.Bc5 Qe5–+) 36...Na4 37.Qa6 Nb6 38.Rb6 (38.Qb6 Qb6 39.Rb6–+) 38…Rc1 (38...Rc1 39.Qf1 Rf1) 0–1. AsceticKingK9 – JohanK, ChessWorld.net, 2014.

8.h3 Bh5 9.c4 (9.Nc3 Nb6+=) 9...c6 (9...dc4 10.Bc4 Rc8 11.d4+=) 10.Nc3 (10.cd5 cd5 11.Nc3 e5+=) 10...dc4 (10...Bf3 11.Bf3 dc4 12.bc6 bc6 13.Rb1+=) 11.Bc4 Rc8 (11...Ne5 12.Be2 Bf3 13.Bf3+=) 12.Be2 (12.d4 e5+=) 12...c5 (12...Qa5 13.bc6 Rc6 14.Nd4+=) 13.d4 (13.d3 Nb6=) 13...Bb8 (13...Qc7 14.Rc1=) 14.Rc1 Qc7 Black prepares c4 15.g3 (15.g4 Bg6=) 15...Rfd8 16.Qb3 (16.Na4 Ne4 17.Qe1 b6=) 16...c4 17.Qc2 (17.Qa3 Qd6=) 17...Bg6 (17...Nd5 18.Qd2+=) 18.e4= Nh5 (18...Nd5 19.Rfd1= (worse is 19.Nd5 ed5 20.Nd2 Nf6–/+)) 19.Bd1 Ndf6 (19...a6 20.ba6 ba6 21.Ba3=) 20.Qe2 (20.Re1!?=) 20...Ng3+= 21.fg3 Qg3 22.Qg2 Ne4 23.Ne4 Qg2 24.Kg2 Be4 25.Be2 Bd5 26.Kf2 a6 27.ba6 b5 28.Bc3 Rd6+= 29.Rb1 Ra6 30.Rb5 Ra2 31.Rfb1 Bf4 32.R1b2 Ra3+= 33.Bb4 Be3–/+ 34.Kg3 Rb3 35.Rb3 cb3 36.Bc5 f6 37.Bd1+= e5 38.Bb3+/– Bb3 39.Rb3 Bd4 40.Bd4 ed4 41.Nd4 Rc7 42.Kf4 Kf7 43.Rb5 Ra7 44.Kf5 g6 45.Ke4 Re7 46.Kf4 Rd7 47.Nc2 Kg7 48.Ne3 Rd4 49.Kf3 h5 50.Rh5!+– f5 51.Rg5 Kf6 52.Rg1 g5+/– 53.Ra1 g4 54.hg4 fg4 55.Ng4 Ke6 56.Ne3 Kd7 57.Ra6 Kc7 58.Nf5 ½–½. Haugli,Petter (2240) – Lein,Anatoly (2490), Gausdal Jubilee, 1983.

7.0–0 e5

8.d4 e4 9.Nfd2 h5 (9...Be2 10.Qe2 a6 11.ba6 ba6 12.h3=) 10.f3 (10.h3!?=) 10...ef3 11.Bf3 Qe7 (better is 11...c6 12.a4 Qa5–/+) 12.e4? (better is 12.Qe2!+=) 12...de4–+ 13.Re1 0–0–0 14.h3?? (14.Bg4 Ng4 15.Nf1–+) 14...ef3! 15.gf3 (15.Nf3 Bf3 16.Qf3 (16.gf3 Qf8 Combination) 16...Qe1 Overloading Remove defender Deflection; 15.gf3 Be6 Combination) 15...Be6 16.c4 (16.Bc1 does not save the day 16...Nh7 17.Ne4 Bh3–+) 16...Rh6 (better is 16...Ne8 makes it even easier for Black 17.Ne4 Bc4 18.Qd2–+) 17.Nc3 (17.c5 Nc5! Double attack: h3/g1 18.dc5 Bc5 19.Kh1–+) 17...Rg6 18.Kh1 Rg3 19.Nf1 (19.Re2 doesn't get the cat off the tree 19...Rh3 20.Kg1 Ng4–+) 19...Rh3 20.Kg2 Ng4! Decoy: g4 21.fg4 Qh4 22.Re6 fe6 23.Ne4 Rh2! puts the final touch 24.Nh2 Qh2 (24...Bh2?! 25.Qe1 Qg4 26.Kh2+=) 25.Kf3 Qf4 26.Kg2 Qe4 27.Qf3 Qf3 28.Kf3 Rf8 29.Kg2 hg4 30.c5 Bf4 31.Re1 Rh8 32.Re6 Nf6 33.Kg1 Re8 34.Re8 Ne8 35.Kg2 g6 36.a4 c6 0–1. Kurochkin,Valery – Shvayev,Andrey (2235), UKR–ch sf U16, 2001. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Be2 Nbd7 5.Bb2 e6 6.b5 Bd6)

8.d4 e4 9.Ne5 Be2 10.Qe2 =+.

8.d4 Bf3 9.Bf3= e4 10.Be2 Qe7 (10...Nb6 11.Nd2=+) 11.c4 dc4 (11...0–0 12.c5 Nc5 13.dc5 Bc5 14.Nd2+/–) 12.Bc4 0–0 (12...Nb6 13.Nd2=) 13.Nc3 Nb6 14.Bb3 Rad8 (14...a6 15.a4=) 15.f3 c5 (15...a6 16.ba6 ba6 17.Qc2 ef3 18.Rf3=) 16.bc6+= bc6 17.f4 (17…c5 18.dc5 Bc5 19.Qe2=+; 17.fe4 Ne4 18.Ne4 Qe4+=). Gnirk,Hajo – Kniasewa,Ljudmila J, CIF TT–94–0024B, 1994.

8.h3 Be6 =+.

8.h3 h5?? 9.hg4+/– hg4 10.Nh2 g3 11.fg3 Ne4 12.Bg4 Ng3 13.Nc3 (better is 13.Re1!?+/–) 13...Nf1+= 14.Nf1 c6 15.Bh3 g6 16.Nh2 f5 17.Qe2 Kf7 18.Rf1 Qg5 19.bc6 (19.Nf3 Qg3 20.bc6 Rh3 21.Qb5–+) 19...Rh3–/+ (19...bc6?! 20.Qa6 Rhc8 21.Nf3=) 20.Qb5 Rh2?? (20...Qg3 21.Qd5 Ke7=) 21.Qd5 Ke7 22.Kh2 Nb6 23.Qb3 bc6 24.Kg1 Rh8 25.Ba3 Qg3 26.Bd6 Kd6 27.Qa3 Ke6 28.Qb3 (28.Qa7 Rh2 29.Rf2 Qh4–+) 28...Nd5 29.Nd5 cd5 30.Qb7 e4 31.Qa7 ½–½. Skerlik,Stanislav (2315) – Krzyzanowski,Antoni (2310), WS/MN/080 ICCF, 2012.

8.h3 Bh5 +=.

7.d4 Ne4

8.0–0 0–0 =+.

8.0–0 Bf3 9.Bf3 Qh4 10.g3 =.

8.0–0 f5 9.c4 c6 10.Ne5 Be2=+ 11.Qe2 Be5 12.de5 0–0 13.f3 Nec5 14.Bd4 Na4 15.bc6 bc6 16.cd5 cd5 17.Nc3 Nc3= 18.Bc3 Qc7 19.Rfc1 Rfc8 20.Bb2 Qa5 21.Bd4 Nb6 22.f4 Nc4 23.g4 fg4 24.Qg4 Rc6 25.Rab1 Qc7 26.Rc3 Rc8=+ 27.Rbc1 Qf7 28.h4 a6–/+ 29.Rb1 h5 30.Qg5=+ Nd2 31.Rc6 Rc6 32.Rb8 Kh7 33.Kg2 Ne4–/+ (34.Rb7 Rc2 (34...Qb7?! 35.Qh5 Kg8 36.Qe8 Kh7 37.Qh5 Kg8 38.Qe8 Kh7 39.Qh5=) 35.Kg1 Ng5 (35...Qb7?! 36.Qh5 Kg8 37.Qe8 Kh7 38.Qh5 Kg8 39.Qe8 Kh7 40.Qh5=) 36.Rf7 Nf7–+) 0–1. Teichmann,Erik (2290) – Tukmakov,Vladimir B (2520), Metz op, 1991.

8.0–0 f5 9.c4 Qf6 10.cd5 ed5 11.Ba3 =.

8.0–0 Qf6 9.Nbd2 h5 10.c4 c6 11.Ne1 Rh6 12.f4 Qf5 13.Nef3 h4 14.Ne4 de4 15.Ne5 Be2 16.Qe2 cb5 17.Nd7 Kd7 18.c5 Bc7 19.Qb5 Kd8 20.d5 ed5 21.Rad1 Rh5? 22.Be5!+– Be5 23.Rd5 Kc7 24.Re5 (24...Rah8 25.Rf5 Rf5 26.Rb1+–; 24.fe5 Qe6 25.Qa5 b6 26.cb6 Kb7 27.ba7 Rh6 28.Rb1 Qb6 29.Rb6 Rb6 30.Rd7 Kc8 31.Qb6 Kd7 32.Qd6 Ke8 33.Qc6 Kd8 34.Qa8 Kd7 35.Qd5 Kc7 36.a8Q h3 37.Qad8#) 1–0. Labahn,Wolfgang – Althoff,G, Paderborn GER, 1992.

8.Nfd2 Be2 9.Qe2 f5 10.c4 Bb4 11.0–0 Nd2 12.Nd2 Bd2 13.Qd2 Nb6 14.c5 Nc4 15.Qc2 0–0 16.Rfe1 a6 17.a4 Qd7 18.Qb3 b6 19.c6 Qf7 20.Bc3 Ra7 21.Ra2 Rfa8 22.Ree2 (22.Rea1 Qh5=) 22...ab5 23.ab5 (worse is 23.Qb5 Nd6 24.Qb1 Qe8–+) 23...Qf8 24.f3 (24.Ra7!? Ra7 25.Bb4=) 24...Ra2–/+ 25.Ra2 Ra2 (worse is 25...Ne3 26.Bb4 Ra2 27.Bf8 Rg2 28.Kh1+/–) 26.Qa2 0–1. Stejskal,D (2030) – Greenfeld,A (2530), Bunratty IRL, Open, 2014.

8.Nfd2 Be2 9.Qe2 f5 10.Ne4 fe4 11.Ba3 Ba3 12.Na3 Qe7 13.Nb1 a6 14.Nd2 0–0 15.0–0 ab5 16.Qb5= Ra7 17.c4 c6 18.Qb3 Nf6 19.a4 Rfa8 20.Rfb1 Qe8 21.Rb2 h6 22.a5 Kh8 23.Qc3+= Qd8 24.h3 Ne8 25.cd5 ed5= 26.a6 Ra6 27.Ra6 Ra6 28.Rb7 Nd6 29.Rb1 Nf5 30.Ra1 Rb6 31.Rb1 Ra6 32.Ra1 Rb6 33.Rb1 Rb1 34.Nb1 Qb6 35.Nd2 Qb5 36.Qa3 Kg8 37.Qa8 Kf7 38.Qc8 Ne7 39.Qg4 Qb4 40.Nf1 Qb7 41.Qh5 Kf8= 42.Qe5 Qc8 43.Qf4 Kg8= 44.Qd6 Kf7 45.Qf4 (45.Nd2 Qe6 46.Qh2 Qg6+=) ½–½. Ferreiro Montoya,Juan Ignacio (2285) – Mitkov,Nikola (2475), Sitges op, 1997.

8.Nfd2 Be2 9.Qe2 Qh4 10.c4 =+.

7.h3 Bf3

8.gf3 0–0 9.c4 (9.f4 c5+=) 9...dc4 10.Bc4 Rc8 (10...Qe7 11.d4+=) 11.Nc3 Qe7 (11...Re8 12.Ne4+=) 12.Rg1 Ba3 (12...Rfd8 13.Ne4+=) 13.Ba3 Qa3 14.Be2 (14.Ne4 Qa5+=) 14...Rfd8 15.Qc2 (15.Qb3 Qd6+=) 15...Qd6 (15...c6 16.Rb1+=) 16.f4 c6 17.Qb2 e5 (17...c5 18.Ne4 Qe7 19.Qc3+=) 18.bc6= bc6 19.fe5 Qe5 (19...Ne5 20.d4 Ng6 21.Rg5+=) 20.f4 Qf5 21.0–0–0 (21.Qa3!?=) 21...Rb8 (21...Qh3 22.Qa3–/+) 22.Rg5 Qh3 (worse is 22...Rb2 23.Rf5 Rdb8 24.Ra5+=) 23.Qa3 h6 24.Ra5 Nd5 25.Ra7 Qe6 26.Qa5 Qg6 27.Rb7 Nc5 28.Rb2 Qd6 Black gets strong initiative 29.Rb8 Rb8 30.Rg1 Qf8 31.Nd5 cd5 32.Rg2 Ra8–+ 33.Qc3 Ra2 34.Bf3 d4 35.ed4 Ne6 Threatens Ra3 36.Bd5 Ra3 37.Bb3 Nf4 38.Rf2 g5 39.d3 Qd6 40.Kd2 40...Kg7 41.Qc4 Do you see the mate threat? 41...Qf6 42.Rf1 Qe7 43.Rf2 Ra1 44.Kc2 Re1 45.Qc3 h5 46.Qd2 Re2 47.Re2 Ne2 48.d5 Nd4 49.Kb2 Kg6 50.Bc4 g4 51.Qf4 Qb7 52.Ka3 Qa7 53.Kb2 Qb6 54.Ka2 Nf5 55.d6 (55.Qd2 g3 56.d4 Nd4 57.Qd3 Nf5–+) 0–1. Pilz,Erhard – Schulz,Hans_Juergen, TT–19.48 ETC, 2005.

8.gf3 Qe7 9.Rg1 +=.

8.Bf3 0–0 9.a4 c5 10.c4 Ne5 11.Be5 Be5 12.Ra2 Qe7 13.0–0 Bd6 14.Qb3 Rad8 15.d3 Bb8 16.Nd2 h5 17.Rd1 Qc7 18.Nf1 d4 19.e4 g5 20.g3 Kg7 21.Bg2 Rh8 Black plans h4 22.a5 Qe5 23.Qc2 h4 24.g4 Nd7 25.Qe2 Nf8 26.Nd2 Qh2 27.Kf1 Ng6 28.Nf3 Qf4 29.Qd2 Qd2 30.Rad2 Bf4 31.Ra2 Ne5 32.Ne5 Be5 33.a6 b6 34.Re2 Rh6 35.Bf3 Rf6 36.Kg2 Rf4 37.Rf1 Rh8 38.Ree1 Rh6 39.Bd1 Rhf6 40.f3 Rh6 41.Be2 Rff6 42.Rd1 Rfg6 43.Rb1 Bf4 44.Bd1 Kf6 45.Rb2 Ke5 46.Rc2 Rh8 47.Rg1 Rg7 48.Re2 f6 49.Rf1 Be3 50.Ree1 Rf7 51.Re2 Rhf8 52.Ree1 f5 53.Be2 Rf6 54.ef5 ef5 55.gf5 Kf4 56.Bd1 Rf5 57.Re2 Re5 58.Rfe1 Rfe8 59.Rf1 R8e7 60.Ree1 Rf7 61.Re2 Ref5 62.Ree1 Re5 63.Re2 Rfe7 64.Rfe1 (64.Ree1 Kf5–/+) 64...Bd2 65.Re5 Re5 66.Re5 Ke5 67.f4 Kf4 68.Bf3 Ke3 69.Be4 Be1 70.Bf5 Bg3 71.Be4 Kf4 72.Bc6 g4 73.Bd7 gh3 74.Kh3 Ke3 ½–½. Melich,Jindrich (2080) – Stluka,Petr (2180), CZE–chT2a, 2006.

8.Bf3 a6 9.Nc3 0–0 10.a4 Nb6 11.d3 ab5 12.ab5 Qe7 13.0–0 Ra1 14.Ba1 Ra8 15.e4 Be5 16.d4 Bf4 17.Ne2 Bh6 18.Ng3 Qb4 19.Qd3 Ra3 20.c3 Qa5 21.Qb1? (better is 21.Bb2 Ra2 22.Bc1 Bc1 23.Rc1+=) 21...Nc4–+ 22.Rd1? (better is 22.Re1–+) 22...Nd2 23.Qb2 Ra2 (23...Ra2 24.Qb4 Ra1 25.Qa5 Ra5–+; 23...Nfe4?! 24.Be4 de4 25.Nf1–+; 23...Nde4?! 24.Be4 Ne4 25.Ne4 de4 26.Qb1–/+; 23...Nf3?! 24.gf3 Qa4 25.Re1–+) 0–1. Majzik,Levente (2280) – Gruskovnjak,Tomislav (2315), HUN–chT2 Szechenyi, 2005. (=1.Nf3 d5 2.e3 Nf6 3.b4 Bg4 4.Bb2 Nbd7 5.Be2 e6 6.b5 Bd6 7.h3 Bf3)

8.Bf3 a6 9.Nc3 ab5 10.Nb5 Be7 11.d3 (11.0–0 0–0+= 12.Qe2 c6 13.Nd4 Ne5 14.a4 Bd6 15.Rfb1 Qe7) 11...0–0 (11...c6 12.Nd4+= 0–0 13.0–0 Nb6 14.Qd2 Na4 15.Rab1 g6) 12.0–0 c6 13.Nd4 Nb6 (13...Nc5 14.Qe2 Na4 15.c4 g6) 14.Qc1 (14.Qe2 g6+= 15.Bc3 Na4; 14.Qb1 Na4 15.c4 g6) 14...Qc7 (14...Na4 15.e4+= (15.Rb1 Qd7) 15...de4; 14...g6 15.c4 Na4) 15.c4 dc4 16.dc4 Rfd8 (16...g6 17.Qc2+=) 17.Qc2 Na4 18.Bc1 (18.Rab1 Nb2 19.Qb2 Rd7+=) 18...e5–/+ 19.Nf5 Nc5 (19...Bc5 20.Rb1+=) 20.Bb2 Bf8 (20...g6 21.Ne7 Qe7 22.a4+=) 21.Rfd1 (21.Ng3 g6=) 21...Rd1 22.Bd1 (22.Qd1 g6 23.Ng3 Bg7+=) 22...g6 23.Ng3 h5 24.Nf1 (24.Ne2 Na4+=) 24...Bg7 (24...Na4 25.Rb1+=) 25.Nd2 Qe7 26.Qb1 Nfd7 27.e4 Ne6 28.a4 Ndc5 29.Nf3 Nd4 30.a5 Qe6 31.Nd2 Qf6 32.Ra2 Rd8 33.Bc3 Bf8–/+ 34.Kf1 Qg5 35.Rb2 h4 36.Ra2 Qf4 37.Kg1 Nde6 38.Bg4 Ng5 39.a6 ba6 40.Ba5 Rd3–+ 41.Bf3 Bd6 42.Bb4 Nf3 43.Nf3 Rb3–/+ 44.Qe1? Nd3–+ 45.Qd1 Nb4 46.Qb3 Na2 47.Qa2 Qe4 48.c5? Bc5 49.Qa6 Qc2 50.Qf1 e4 51.Ne5 Bd4 (51...Bd4 52.Ng4 Qc3–+) 0–1. Johannes,Jan (2190) – Buettner,Fritz (2445), CiF, 2008.

8.Bf3 Qe7 9.0–0 e5 10.d4 e4 11.Be2 0–0 12.c4 c6 13.c5 Bc7 14.a4 cb5 15.ab5 h6 16.Nc3 Rfe8 17.Qb3 Qe6 18.f3 ef3 19.Rf3 Nf8 20.Bc1 N8h7 21.Na4 Ng5 22.Rf1 Nfe4 (better is 22...Nge4+=) 23.Nc3?? (better is 23.Bg4 Qe7 24.Qd5+/–) 23...Nh3!–+ 24.gh3 Qh3 (24...Qh3 25.Rf2 Nf2–+) 0–1. Van Esbroeck,Dirk – Eilering,David, SF–2009–0–00034, 2009.

8.Bf3 Qe7 9.a4 e5 10.d4 0–0 11.Nd2 c5 12.0–0= cd4 13.ed4 e4 14.Re1 Qd8 15.Be2 Re8 16.Nf1 Rc8=+ 17.Ba3 Bb8 18.Bb4 Qc7 19.c3 Nb6=+ 20.Bc5 Nbd7 21.Bb4= Nb6 22.Bc5 Qf4 23.Qd2 Qh4 24.Ne3 g6 25.a5 Nbd7 26.Bb4 h5 27.Bf1 Qg5 28.Rad1 h4+= 29.Be2 Bf4 30.Rb1 b6 31.a6 Nf8 32.Ba3 Ne6= 33.Bc1 Ng7 34.Qb2+= Rc7 (Black fights for the initiative) 35.Nf1 Rec8 36.Bf4 Qf4 37.Rbc1 Nf5 38.Bd1 Nd4!–/+ 39.Ne3 Ne6 40.Bb3 Qe5 41.Rcd1 Nf4–+ 42.Qa2 Rc5 43.f3 Nd3 44.Nd5 Ne1 45.f4 Qd6 46.Nf6 Qf6 47.Re1 Re8 48.Re3 Qf4 49.Qe2 Rg5 50.c4 Rg3 (51.Rg3 Qg3–+ (< 51...hg3 52.Bc2–+)) 0–1. Caminade,Christian (2180) – Boudre,Jean Pierre (2375), FRA–ch Acc Montpellier, 1991.

5.Be2 Bf3

6.gf3 e5 7.a3 Bd6 8.c4 dc4 9.Bc4 Nb6 10.Qb3 Nc4 11.Qc4 Qe7 12.Nc3 0–0–0 13.0–0–0 Kb8 14.Rhg1 g6 15.Kb1 Rhe8 16.Nb5 a6 17.Nc3 c6 18.d3 Nd7 19.Ne4 Bc7 20.d4 f5 21.Ng5 Nb6 (21...ed4 22.Bd4 Bh2 23.Rg2–/+) 22.Qb3 ed4 23.Bd4 Nd5 24.Qc4 (24.Bc5 Bd6+=) 24...Bh2–/+ 25.Rg2 Be5 26.Rh1 Bd4 27.Rh7? (better is 27.Qd4 Nf6 28.Qc5–+) 27…Bg7 0–1. Barra,Horacio – Parcerias,Pedro (2255), POR–ch sf Faro, 1998. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 Nbd7 5.Be2 Bf3)

6.Bf3 e5

7.a3 a5 =.

7.a3 c5 8.bc5 Bc5 9.0–0 e4 10.Be2 0–0 11.c4 (11.Nc3 Bd6=) 11...dc4+= 12.Bc4 Bb6 (12...Bd6!? 13.d3 Ne5+=) 13.Nc3 Ne5 (13...Bc7 14.d3 Ne5 15.Nb5=) 14.Be2 (14.Ne4 Ne4 15.Be5 Nd2+/–) 14...Ng6 (14...Nd3!? 15.Qc2 Rc8=) 15.d3 ed3 16.Qd3 Qd3 17.Bd3 Ne5 18.Be2 Bc5 (18...Rad8 19.Rad1+=) 19.Rfd1 Ng6 20.Bf3 Ne5 21.Nd5 (better is 21.Bb7!? Rab8 22.Nd5+/–) 21...Nf3+= 22.gf3 Nd5 23.Rd5 b6 24.Rad1 a5 25.Kg2 Rfe8 26.Rd7 h6 27.Rb7 (27.e4!?+=) 27...Rad8= 28.Rdd7 Rd7 29.Rd7 Re6 30.f4 Re4 31.Kf3 Ra4 Exerts pressure on the isolated pawn 32.Rd3 b5 33.Ke2 b4 34.ab4 ab4 (worse is 34...Rb4 35.Ba3+–) 35.Kf3 Ra2 36.Rb3 Kh7 37.f5 g6 38.Ke4 Bd6 39.h3 h5 40.f4 Ra5 41.fg6 Kg6 42.Rd3 Be7 43.Rb3 Ra6 44.Kd5 Kf5 (44...Rd6 45.Kc4 Rd2 46.e4=) 45.Be5 (45.e4 Kg6+=) 45...Ra5 46.Kd4 Rc5?? (better is 46...Ra3 47.e4 Kg6 48.f5 Kg5 49.Rg3 Rg3 50.Bg3 Bf8=) 47.e4+/– Ke6 48.f5 (better is 48.Rb4 Ra5 49.f5 Kd7 50.Rb7 Ke8 51.f6+/–) 48...Kd7= 49.Rb4?? (better is 49.Bf4 Rc2 50.Kd3=) 49...Re5!–+ 50.Ke5 Bb4 (better is 50...f6!? 51.Kd5 Bb4–+) 51.Kf6–/+ ½–½. mr5reasons1 – wokkels, gameknot.com, 2012.

7.a3 e4 8.Be2 Be7 9.c4 c6 10.cd5 cd5 11.0–0 0–0 12.d3 Nb6 (12...a5 13.b5=) 13.de4 de4 14.Qd8 Rad8 (worse is 14...Bd8 15.Nd2+=) 15.Bd4 h6 16.Nc3 Nfd7? (better is 16...Nbd5+=) 17.Ne4+– Nd5 18.Rfc1 (18.Ba7 N7f6 19.Ng3 Bd6+–) 18...b6 19.Bb5 N5f6 20.Nf6 Nf6? (better is 20...Bf6 21.Rd1 Bd4 22.ed4 Nf6+–) 21.Rc7 Bd6 22.Ra7 Ne4 (22...Ra8 23.Bb6 Rab8 24.Ra6+–) 23.f3 (23.Bc6 Bb8 24.Rb7 Nd6 25.Rb6 Nf5+–) 23...Nd2 (23...Bb8 24.Ra6 (24.fe4?! Ba7 25.a4 h5+/–) 24...Nd6 25.Bc6+–) 24.Rc1 (better is 24.Ra2 Bb8 25.Rb7+– (25.Rd2?! Ba7 26.a4 Rd6+/–)) 24...Nb3 25.Rd1 Nd4 26.Rd4 Be5 27.Rd8 Rd8 28.f4 Bb2 29.Rb7 (better is 29.Kf2!? f5 30.Bd7+–) 29...Ba3+/– 30.Rb6 Bb4 31.Be2 (31.Kf2 Bc3+/–) 31...Bd2 32.Kf2 Bc3 33.Rc6 Ba1 34.Kf3 f6 35.g4 Re8 36.e4 Bb2 37.Bc4 Kh7 38.Bf7 Re7 39.Bd5 Ba3 40.h4 Ra7 41.Rc8 g6 42.Bg8 Kg7 43.Bd5 Bb2 (43...Kh7 44.h5 gh5 45.gh5 Bb2+–) 44.Rb8 g5?? (better is 44...Bd4+–) 45.hg5 (45.Rb2 gh4 46.Kg2 h5+–) 45...hg5 (45...Ra3 46.Ke2 hg5 47.Rb7 Kh6 48.fg5 Kg5 49.Rb2 Kg4+–) 46.Rb7 (better is 46.Rb2 gf4 47.Kf4+–) 46...Rb7+= 47.Bb7 gf4 48.Kf4 Be5 49.Kf5 Ba1 50.g5 fg5 51.Kg5 Kf7 52.Kf5 Ke7 53.e5 (53.Bc6!?+/–) 53...Be5= 54.Ke5 ½–½. bratek55 (1655) – kaboman, 2012.

7.a3 h5 8.c4 e4 9.Be2 dc4 10.Bc4 Bd6 11.d3 Qe7 12.Nd2 ed3 13.Bd3 Ne5 14.Be2 0–0–0 15.Qc2 Kb8 16.Ne4 Ne4 17.Qe4 f5 18.Qf5 Bb4 19.Kf1 Bd6 20.Qe4 (20.Bh5? Rdf8 21.Qe4 Rh5–+) 20...Rd7 21.Rb1 Ng4 22.Qe7 Re7 (worse is 22...Be7 23.Bg7 Rh7 24.Bc3+–) 23.h3 Nf6 24.Bf3 b6 25.a4 Be5 26.Ba3 Bd6 (26...Rd7 27.Ke2 Rhd8 28.Rhc1=) 27.Bd6+= cd6 28.a5 Rc8 (28...Kc7!?+=) 29.ab6+/– a5 30.Ke2 (30.g4 h4+–) 30...Ne4 (30...Rc2!? 31.Ke1 d5+/–) 31.Be4 Re4 32.Rhd1 Rc6 33.Rd5 Re5 34.Re5 de5 35.Rb5 a4 36.Ra5 Rc2 37.Kf3 e4 38.Kg3 h4? (better is 38...Rc4!? 39.Ra7 g5+/–) 39.Kh4+– Rf2 40.g4 (40.Ra4!? Kb7+–) 40...Ra2 41.Ra7 Ra3 42.Kg5 Re3 43.Ra4 Re1 (43...Kb7 44.Rb4 Rh3 45.Re4 Kb6+–) 44.Ra7 Rh1 45.h4 e3 46.Re7 (46.Rg7 e2 47.Re7 e1R 48.Re1 Re1=) 46...Rh3 (46...Rd1 47.h5+– (47.Rg7 e2 48.Re7 e1Q 49.Re1 Re1=)) 47.h5 1–0. Cocchi,Andrea (2330) – Brancaleoni,Maurizio (2275), ITA–ch sf Montebelluna, 2006. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 Nbd7 5.Be2 Bf3 6.Bf3 e5)

7.b5 a6 8.ba6 Ra6 9.0–0 Bd6 10.Be2 Rb6 11.Qc1 0–0 12.a4 Bb4 13.a5 Re6 14.c3 Bd6 15.Qc2 c6 16.c4 d4 17.a6 ba6 18.Ra6 Nc5 19.Ra3 d3 (19...Qc7!?+=) 20.Bd3= Nd3 21.Rd3 e4 22.Rd6 Qd6 (worse is 22...Rd6 23.Ba3+=) 23.Bf6 gf6 24.Nc3 f5 25.Ne2 Rd8 26.Rd1 Rh6 27.h3 Qd3 28.Qd3 Rd3 29.Ng3 Rf6 30.Kf1 Ra3 31.Ke2 Ra5 32.Rb1 Rd6 33.Rb2 Kf8 34.f3 Rg6 35.Kf2 Re6 36.Rb8 Kg7 37.Rd8 Kf6 38.Rd7 Kg6 39.Ne2 Kg7 40.g4 ½–½. Pcmvr – FortKnox, playchess.de, 2005.

7.b5 Bd6 8.0–0 0–0 9.d3 c6 10.c4 Rc8 11.Nc3 d4 12.bc6 bc6 13.Ne2 c5 14.Ng3 Qe7 15.Re1 Rfe8 16.Rb1 Rb8 17.ed4+/– cd4 18.Bd4! Rb1 19.Qb1 Bc5 20.Bb2 Qd6 21.Nf5 Qc7 22.Qc1 h6 23.Qc2 Bd4? 24.Nd4+– ed4 25.Re8 Ne8 26.Bd4 Nef6 27.Qe2 Qd6 28.Ba7 Ne5 29.d4 Neg4 30.g3 h5 31.Bc5 Qa6 32.Be7 Qa4 33.h3 Nh6 34.d5 Qa6 35.Bf6 Qf6 36.c5 Nf5 37.Qe8 Kh7 38.Be4 g6 39.Bf5 Qf5 40.d6 Qc5 41.Qf7 Kh6 42.Qf8 Kh7 43.Qe7 Kh6 44.Qe3 Qe3 45.fe3 Kg7 46.d7 (46...Kf7 47.d8Q+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

7.b5 Bd6 8.c4 e4+= 9.Be2 Ne5?? (9...dc4!? 10.Bc4 Ne5+=) 10.cd5?? (better is 10.c5+–) 10...Nd5= 11.Qb3 (11.Qa4 f5=) 11...Qg5 12.Kf1 (12.Qd5? Nd3 13.Qd3 ed3–+) 12...Nb4 13.Nc3 (13.Be5 Qe5 14.Nc3 0–0=) 13...Qg6 (13...Qf5!? 14.g4 Ng4 15.Bg4 Qg4–+) 14.Ba3 Nbd3 15.Bd6 cd6 16.Qd5 Nc5 17.h4 Qe6 18.f4 Ned7 19.g4 Nb6 20.Qd4 f6 (20...0–0 21.Kg2=) 21.h5 h6 (21...0–0–0 22.f5 Qe7 23.Rb1=) 22.Rb1+= Rc8 (22...0–0 23.a4 Kh7 24.Kg2+=) 23.Kf2 (23.a4 Nb3 24.Rb3 Qb3 25.Qe4 Kd7+/–) 23...d5 (23...0–0 24.a4+=) 24.a4 Nd3 (24...Qd7 25.f5+/–) 25.Bd3+/– ed3 26.Qd3 0–0 27.a5 d4 28.Ne2 (28.ab6?! dc3 29.ba7 Rfd8=) 28...de3 29.Qe3 Qe3 30.de3 (30.Ke3?! Nc4 31.Kd3 Rfd8 32.Nd4 Na5=) 30...Nc4 31.a6 ba6 32.ba6 Rc6 (32...Nd6!?+/–) 33.Rhc1+– Rfc8 34.Nd4 Ra6? (better is 34...Rb6+–) 35.Rb4 Ra2 36.Kg3 Re8 37.Rbc4 (37.Rcc4 Re3 38.Nf3 Raa3 39.Rc8 Kf7 40.Rb7 Re7 41.Re7 Ke7 42.Rc7 Kf8+–) 37...Re3 38.Nf3 Raa3 39.Rf1 a5 40.Kg2 (better is 40.Rc8 Kh7 41.Kg2+–) 40...Ra2? (better is 40...a4+–) 41.Rf2 Raa3 42.Rc8 Kh7 (42...Kf7+–) 43.Ra8 a4 (43...Red3 44.Re2 Rf3+–) 44.Rd2 Red3 (44...Rf3 45.Rdd8 Rg3 46.Kf2 Raf3 47.Ke2 Re3 48.Kd2 Rd3 49.Rd3 Rd3 50.Kd3 g5+–) 45.Rd3 Rd3 46.Nh4 g5 (46...Rd2 47.Kf3 g6 48.hg6 Kg7 49.Ra7 Kh8 50.Nf5 Rd3 51.Ke4 Rd8 52.Rh7 Kg8 53.Nh6 Kf8 54.g7 Ke7 55.g8Q Kd6 56.Qd5) 47.hg6 Kg7 48.Ra7 1–0. Matveenko,Yury (2110) – Koshelev,Vladimir (1985), Voronezh City Chess Championship Open, 2009.

7.b5 e4 8.Be2 Bd6 9.h3 0–0 10.0–0 Qe7 11.a4 Be5 12.Nc3 d4 13.ed4 Bd4 14.Kh1 Rfd8 15.Nd5 Qe5 16.Nf6 Nf6 (worse is 16...gf6 17.c3 Bb6 18.a5+/–) 17.Bd4 Rd4 18.d3 Nd5 19.Qe1 Qe6 20.c3 ed3 (worse is 20...Rd3 21.Bd3 ed3 22.Qe6 fe6 23.Rfd1+/–) 21.cd4 de2 (worse is 21...Qe2 22.Qe2 de2 23.Rfe1+–) 22.Rg1 Re8 23.Kh2 Qf5 24.Ra2 Nf4 25.g4 (25.Rd2 Qe4–+) 25...Qd3 26.Rg3 Qd1 (26...Qd4?! 27.Raa3–+) 27.Ra1 Qa1!! 28.Qa1 e1Q 29.Qe1 Re1 30.Rc3 Re7 31.Rc4 Rd7 32.Kg3 Ne6 33.d5 Rd5 34.Re4 Rd4 35.Re5 (35.Rd4 Nd4 36.Kf4 Ne2 37.Ke5 Nc3–+) 35...Ra4 36.f4 (36.h4 Ra5–+) 36...Rf4 37.Re6 Rg4! 38.Kg4 (38.Kg4 fe6 Zwischenzug (38...fe6 Passed pawn); 38.hg4 fe6 Zwischenzug (38...fe6 Passed pawn)) 38...fe6 39.Kf4 Kf7 40.Ke5 g5 0–1. whitecat25 – marekt, ChessWorld.net, 2013. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nd7 4.e3 Ngf6 5.Be2 Bf3 6.Bf3 e5)

7.c4 Bb4 8.cd5 e4 9.Be2 =+.

7.c4 e4 8.Be2 Bb4 9.Qb3 Bd6 10.cd5 0–0 11.d4 Nb6 12.Nc3 Nbd5 13.0–0 c6 14.Ba3 Nc3 15.Qc3 Re8 16.Rfb1 Ba3 17.Qa3 Qe7 18.Qb3=+ Rab8 19.a4 Red8–/+ 20.Qc2 Nd5 21.a5=+ Rbc8 22.Rb3 g6 23.Rab1 Rc7 24.Qb2 Rdd7 25.Bg4 f5 26.Be2 Kg7 27.g3 g5 28.Rc1 Kg6 29.Bd1 h5 30.Qe2 Nf6 31.Rbc3= h4 32.a6 hg3 33.fg3 Qb4 34.Rb3 Qd6= 35.ab7 Rb7 36.Rbc3 Rb6 37.Rc5 Rdb7 38.Ba4= Rb1 39.Qf1 Rc1 40.Qc1 Qb8 41.Qf1 Rb1=+ 42.Bd1 Nd5 43.Qe2 g4 44.Rc6=+ Kg7 45.Kg2?? (better is 45.Kf2=+). Pandurevic,M (2265) – Rosic,S (2300), 10th Open Bosnjaci CRO, 2004.

7.c4 e4 8.Be2 dc4 9.Bc4 Bd6 10.Qb3 =+.

7.a3 Bd6

8.0–0 0–0 9.d3 c6 10.Nd2 Rc8 11.c4 Bb8 12.Rc1 Re8 13.g3 Qe7 14.Qb3 Rcd8 (14...e4!? 15.Bg2 Be5 16.Be5 Qe5=) 15.cd5+= cd5 16.Bd5 Nd5 17.Qd5 Nf6 18.Qb3 e4? (18...Qd7 19.Ne4 Ne4 20.de4+=) 19.d4 (better is 19.Bf6!? Qf6 20.Ne4+–) 19...h6 20.Nc4 Nh7 21.Ne5 (21.Rc2!?+=) 21...Be5= 22.de5 Ng5 23.Rfd1 Nf3 24.Kg2 Qg5 Can e5 get defended? (24...Ne5 25.Rd8 Rd8+=) 25.Rh1 (better is 25.Rd8!? Qd8 26.Qc2 Ne5 27.Be5 (worse is 27.Qe4 Nd3 28.Qb7 Nb2+=) 27...Re5 28.Qc8 Qc8 29.Rc8 Kh7 30.Rc7+/–) 25...Rd2 26.Rcd1 Red8 27.Rd2 Rd2 28.Qc3?? (28.Bc1 Rd3 29.Qc2 Nh4 30.Kf1–+) 28...Qg4 29.h3 Nh4 30.Kh2 Qf3 31.Qc8 Kh7 32.Qf5 Nf5 33.Rf1 Ne3 34.Bc1 Rf2 35.Rf2 Qf2 36.Kh1 Qg2 0–1. bratek55 – sfinksu (1645), 2012.

8.0–0 0–0 9.d3 Qe7 10.Nd2 a5 11.b5 c5 (11...Rfd8!?=) 12.c4+= Nb6 13.cd5 Nbd5 14.Qb3 (14.Nc4 Qe6+=) 14...Nb6 (14...a4 15.Qa2 Nb6 16.Nc4 Nc4 17.Qc4+=) 15.a4 Qc7 (15...Rfd8 16.Ne4+=) 16.h3 (16.Rac1 Qd7+=) 16...Rfd8 17.Rac1 Rac8 (17...Qd7 18.Rfd1+=) 18.Bc3 Ra8 19.Rfd1 Rd7 (19...Ra7 20.d4 Qe7 21.de5 Be5 22.Be5 Qe5 23.Ne4 Rd1 24.Qd1+–) 20.Bb2 (20.d4 ed4 21.Bd4 Be7+/–) 20...Rc8 (20...Qd8 21.Ne4 Ne4 22.Be4+=) 21.Ne4+/– Ne4 22.Be4 Re7 23.Bf5 Rce8 24.Re1 (24.Bc3 Nd7+=) 24...Nd7 25.Qc4 Nb6 26.Qb3 (26.Qa2 Nd7+=) 26...Ra8 (26...Nd7 27.Rc4+=) 27.Red1 (27.Bc3 c4 28.dc4 Qc4 29.Qc4 Nc4+/–) 27...h5 (better is 27...Rae8!?=) 28.Be4+/– h4 29.Bf5 (29.Bc3 Qd7+=) 29...Qd8 30.Bc3 (30.Qc2 Rc7+/–) 30...Rc7 31.Be4 Qg5 32.Qa2 Rd7 33.Bd2 Be7 34.Bc3 Kf8 35.Rb1 Kg8 36.Qb3 Bd6 37.Be1 Be7 38.Bd2 (38.Rbc1 Qf6+=) ½–½. Woelfelschneider,Peter – Mackey,Jason, FICGS, 2006.

8.0–0 0–0 9.d3 Re8 10.Nd2 Nb6 (10...a5!?=) 11.c4+= e4 12.de4 dc4 13.Qc2 Qe7 14.Nc4 Ne4 15.Nd6 Nd6 16.Qc3 f6 17.Rfd1 c6 18.Qb3 Kh8 19.h3 Rad8 20.Bd4 Nf5 21.Bc5 Qc7 22.Rd3 Nh4 23.Bg4 Re5 24.Rad1 (24.Rad1 Rd3 25.Qd3+/–) 1–0. mr5reasons1 (1660) – beuckey (1690), gameknot.com, 2012.

8.0–0 c6 9.d3 =.

8.c4 e4+= 9.Be2 dc4 10.Bc4 Ne5 11.Be2 Qd7 (11...0–0 12.0–0=) 12.Nc3 (12.0–0 Neg4 13.g3 Be5=) 12...a5 13.b5 (13.Qb1 Qf5=) 13...0–0 (13...Qf5 14.0–0=) 14.0–0 (14.Qc2 Qf5=) 14...Rad8 15.f4 Nd3 (15...ef3 16.Bf3 Neg4 17.g3=) 16.Bd3 ed3 17.Qf3 b6 (17...c6 18.Rab1=) 18.Nd5 (18.Qg3 Be7=) 18...Nd5 (18...Qb5?? 19.Nf6 Kh8 20.Qh3+–) 19.Qd5 Bc5 20.Qc4 Rfe8 (20...c6 21.bc6 Qc6 22.Rac1=) 21.Rf3 (21.f5 Qd5 22.Qg4 Bf8=) 21...Qd5 22.Qc3 (22.Qd5 Rd5 23.Rg3 g6+=) 22...f6+= 23.Rg3 (23.Rc1 Rd6+=) 23...Rd6 24.Rg5 Qf7 (24...Qe4 25.Qb3 Kf8–/+) 25.Rg3 (25.Rc5!? bc5 26.a4+=) 25...Re4–/+ 26.Rc1 Rf4 27.Kh1? (27.h3 a4–/+) 27...Re4 (27...Bb4 28.ab4 ab4 29.Qc7 Qc7 30.ef4–+ (30.Rc7?? Rf1)) 28.Rf1? (better is 28.Rf3–+) 28...Rc4 29.Qb3 Rc2 30.Qf7 Kf7 31.Bc1 (31.Bc3 Ba3 32.e4 Kg8–+) 31...Re6 (better is 31...c6!? 32.a4–+) 32.e4 Re4 33.Rd3 Rec4 34.Rd7 Ke6 (34...Ke6 35.Rd8 Rc1 36.Re8 Be7–+) 0–1. Mielke,Sven – Zacharias,Christian (2210), Wichern op 4th, 1997.

8.c4 e4 9.Be2 dc4 10.Bc4 Qe7 11.f4 (11.0–0 Nb6 12.Bb3 Rd8 (12...Be5 13.Be5 Qe5 14.Nc3 Rd8 15.f3 0–0 16.Qc2=; 12...0–0 13.f3 Be5 14.Be5 Qe5 15.Nc3 Rad8 16.Qc2=) 13.f3 Be5 14.Be5 Qe5 15.Nc3 0–0 16.Qc2=; 11.Nc3 Nb6 (11...Ne5; 11...0–0; 11...a5) A) 12.Be2 0–0 (12...a5) 13.Qc2 Rfc8 14.d3 ed3 15.Bd3 c5 16.b5=; B) 12.Bb5 c6 13.Be2 Be5 14.d4 ed3 15.Bd3 Rd8 16.Qc2=) 11...ef3 (11...Nb6 A) 12.Be2+= 0–0 (12...a5 13.b5 0–0 14.0–0 Nbd5 15.Qc2 Rfc8 16.Nc3=) 13.0–0 c5 14.Bf6 Qf6 15.Nc3 Qe7 16.bc5+=; B) 12.Bb3 0–0 13.0–0 a5 14.b5 a4 15.Bc2 Bc5 16.Qe2=; 11...0–0 A) 12.Qc2 a5 (12...Nb6 13.Be2 a5 14.b5 Rad8 15.0–0 Rfe8 16.Bc3=; 12...c5 13.b5 Nb6 14.Be2 Rad8 15.0–0 Rfe8 16.Nc3=) 13.b5 Rfc8 14.Nc3 c6 15.0–0 Nb6 16.Be2+=; B) 12.Nc3 a5 (12...Nb6) 13.b5 Nb6 14.Bb3 Bc5 15.Qc2 Rfd8 16.Ba2+=; C) 12.0–0 a5 (12...Nb6 13.Be2 c5 14.Bf6 Qf6 15.Nc3 Qe7 16.Qc2+=; 12...c5 13.b5 Nb6 14.Be2 Rad8 15.Qc2 Rfe8 16.Nc3=) 13.b5 Rfd8 14.Nc3 Nb6 15.Be2 a4 16.Qc2+=; 11...a5 12.ba5 Ra5 (12...0–0 13.Bc3 Nc5 14.0–0 Rfd8 15.Qc2 Ng4 16.Bd4=) 13.Bc3 Ra7 14.0–0 0–0 15.d3 Nb6 16.Bf6+=) 12.Qf3= Ne5 (12...c6 13.0–0= (13.Qe2 0–0 14.0–0 Rfe8 15.b5 Ne5 16.Bb3=) 13...Ne5 14.Qe2 Nc4 15.Qc4 Be5 16.Be5=) 13.Qb7+= 0–0 14.Be2 (better is 14.Qa6!?+= Rfb8 15.Be2 Rb6 16.Qa4+=) 14...a5+= 15.g3 ab4 16.ab4 Rab8 17.Qg2 Bb4 18.Bd4 (18.Bc3 Bc3 19.Nc3 Rb2+=) 18...c5–/+ 19.Bc3 Rfd8 20.Bb4 cb4 21.0–0 Qe6 22.h3 Nc4 23.Bc4 Qc4 24.Ra7 h6 25.g4 Qc5 26.Rb7 Qe5 27.Ra7 b3 28.h4? (better is 28.Rf5 Qe6 29.Qg3–/+) 28…Rb4–+ (28...Rb4 29.Qf3 Rg4 30.Kf2 Qh2 31.Ke1 Rc4–+ (worse is 31...Qh4 32.Qf2–+; 31...Rh4?! 32.Kd1–+)) 0–1. Johannessen,Svein – Tisdall,Jonathan D, Ch Norway, Namsos, 1995. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 Nbd7 5.Be2 Bf3 6.Bf3 e5)

8.d3 c5 =.

5.h3 Bf3

6.gf3 e5 7.Rg1 Bb4 8.Rg7= Qe7 9.a3 Ba5 10.c4= d4 11.Qe2 Nc5 12.ed4 ed4 13.Bd4 Ne6–/+ 14.Bb2 Ng7 15.Bf6 Qe2 16.Be2 Rg8 17.Kf1 Nh5 18.Be5 f6 19.f4 fe5 20.Bh5 Ke7 21.fe5 Raf8 22.Nc3 Bc3 23.dc3 Rg3 (24.Bg4 h5–+; 23...Rg5 24.Bg4 Re5 25.Ra2–+) 0–1. Wrede,Christian – Kleinsorgen,Horst M, WCCF, 2004.

6.Qf3 e5

7.a3 a5 8.b5 Bd6 9.d3 e4 10.Qd1 0–0 11.Nd2 =.

7.Nc3 Bb4 8.Nd5 Nd5 9.Qd5 c6 10.Qd3 Qe7 11.a3 =.

7.Nc3 c6 8.a3 b5 9.e4 d4 10.Na2 a5 11.c4 =.

7.Nc3 c6 8.b5 Bb4 9.Qf5 a6 10.bc6 bc6 11.Be2 g6 12.Qg5 Rb8 13.a4 h6 14.Qh4 Be7 15.Ba3 Ba3 16.Ra3 Rb2 17.Rb3 Rc2–/+ 18.Qb4 Rc1 19.Bd1 Qe7 20.Qe7 Ke7–/+ 21.0–0 Kd6 22.f4 ef4 23.Rf4 Ne4 24.Ne4 de4 25.Rf1 Nc5 26.Rb2 f5 27.Bc2 Rf1 28.Kf1 a5 29.Bd1 g5 30.g3 Rf8 31.Kg1 Kd5 32.Rb1 Ke6 33.Kf1 f4 34.ef4 gf4 35.gf4 Rf4 36.Kg1 Rf8 37.Rb2 Rg8 38.Kh2 Rg5 39.Ra2 Rd5 40.Kg2 Ke5 41.Kf2 Nd3 42.Ke3 Nb4 43.Ra3 Rd8 44.Rb3 Rf8 45.Ke2 Kd4 46.Rb1 Nd3 47.Bc2 Rf2 48.Kd1 Rg2 49.h4 h5 50.Bd3 ed3 51.Kc1 Rg1 52.Kb2 Rb1 53.Kb1 Kc4 54.Kb2 Kb4 55.Kc1 Ka4 56.Kb2 Kb4 (57.Kb1 Kb3–+) 0–1. CODD (1845) – pierre (2190), internet, 2007.

7.Nc3 e4 8.Qg3 Bb4 9.Qg7 Rg8 10.Qh6 c6 11.Qf4 Qe7 12.Qf5 Ba3 13.Ba3 Qa3 14.g4 h6 15.f4 ef3 16.Qf3 h5 17.gh5 0–0–0 18.Rb1 Qd6 19.Be2 Ne5 20.Qf5 Rd7 21.d4 Nc4 22.Bc4 dc4 23.Rf1 Nd5 24.Nd5 cd5 25.Rb5 Re8 26.Rf3 Re6 27.Kd1 a6 28.Rc5 Kb8 29.Ra5 b6 30.Ra4 b5 31.Ra5 Qb6 32.Ra3 b4 33.h6 ba3 34.h7 Qb1 35.Kd2 c3 36.Ke2 Rd8 37.Qd3 Qa2 38.Rg3 Rg6! 39.Rg6 fg6 40.Qg6 Qc4 41.Ke1 Qc7 42.h8R Rh8 (43.Kf1 Qc4 44.Kf2 Rf8 45.Kg3 a2–+) 0–1. kamret (2155) – kabieces (2275), GameColony.com, 2003.

7.a3 Bd6

8.Bb5 a5 9.Qg3 c6 10.Bd3 0–0 11.ba5 =+.

8.Nc3 e4 9.Qd1 0–0 10.Be2 c6 11.0–0 =+.

8.c4 c6 9.Nc3 (9.cd5 A) 9...cd5 10.Qf5 (10.d3 0–0 11.Be2 Qb6 12.0–0+=) 10...0–0 11.Be2 a5 12.0–0+=; B) 9...e4 10.Qd1 (10.Qe2 Ne5 11.Qd1 Nd5 12.Nc3+=) 10...cd5 11.Be2 0–0 12.0–0+=; 9.Qg3 0–0 10.Nc3 (10.cd5 cd5 11.Be2 Qe7 12.Nc3+=) 10...Qe7 11.cd5 cd5 12.Nb5+=; 9.d3 A) 9...e4 10.de4 (10.Qd1 dc4 11.de4 Be5 12.Be5+=) 10...de4 11.Qd1 Qe7 12.Be2+=; B) 9...dc4 10.Nd2 (10.dc4 e4 11.Qd1 Qc7 12.Nc3+=) 10...cd3 11.Bd3 0–0 12.0–0+=; C) 9...a5 10.cd5 (10.b5 a4 11.d4 Qe7 12.Qf5+=) 10...cd5 11.Be2 ab4 12.0–0+=) 9...e4 10.Qd1 Be5 (10...dc4 11.Qc2 Qe7 12.Bc4+=) 11.d4 (11.cd5 Nd5 12.Qc2=) 11...Bc7 (11...ed3 12.Bd3=) 12.Rc1 (12.cd5+=) 12...Rc8 13.c5 a5 14.Be2 Ra8 15.b5 Nf8 16.0–0 Ng6 17.f3 Qe7 (17...ef3!? 18.Rf3 Nh4+=) 18.fe4+/– Ne4 19.Ne4 (better is 19.bc6!? bc6 20.Qa4+–) 19...Qe4+= 20.Qb3 (20.Qd3 Qh4 21.Rf3 0–0+=) 20...0–0 21.Rce1 (better is 21.Bf3 Qh4 22.Qa4=) 21...Nh4–/+ 22.Bf3 Qg6 23.bc6 bc6 24.Bc1 (better is 24.Qa4!?–+) 24...Qg3 (24...Nf3?! 25.Rf3 Rab8 26.Qa4–/+) 25.Re2?? (25.Rd1–+) 25...Qh2 26.Kf2 Bg3 mate 0–1. Rudol,Matylda – Lachowicz,Judyta (1695), Druzynowe Mistrzostwa Polski Juniorow Poland, 2011.

8.d3 a5 9.b5 e4 10.Qd1 0–0 11.Nd2 =.

8.d3 c5 9.c3 0–0 10.Qd1 Qb6 11.Ra2 cb4 12.cb4 a5 13.ba5 Ra5 14.Be2 Rb5 15.Qc1 Rc5 16.Qd1 Rfc8 17.Nd2 Rc2 18.Qb1?? (better is 18.Bd4 Rd2 19.Bb6 Rd1 20.Kd1 Nb6 21.Kd2–+) 18...Qa5 19.Qd1 (19.0–0 Rd2 20.Qe1 Rcc2–+) 19...Bb4! 20.0–0 (20.ab4 Qa2 Pinning (20...Qa2 Deflection)) 20…Bd2 (20...Rd2?! 21.ab4 Rd1 22.ba5–+) 0–1. Firstov,Juri (2165) – Kanep,Meelis (2425), EST–ch Tallinn, 2004. (=1.Nf3 d5 2.e3 Nf6 3.b4 Bg4 4.Bb2 Nbd7 5.h3 Bf3 6.Qf3 e5 7.a3 Bd6)

8.Be2 e4 9.Bf6 Nf6 10.Bb5 c6 11.Qe2 –+.

8.c4 e4

9.Qd1 0–0 10.cd5 (10.Nc3 dc4 11.Qc2 a5 12.Bc4–/+) 10...Nd5 11.d3 a5 12.de4 +=.

9.Qd1 dc4 10.Qc2 0–0 11.Nc3 a5 12.Bc4 –/+.

9.Qd1 dc4 10.Bc4 0–0 11.0–0 a5 12.Be2 +=.

9.Qd1 dc4 10.Bc4 a5 11.b5 =+.

9.Qd1 dc4 10.Bc4 Ne5 11.Be5 Be5 12.d4 ed3 13.Ra2 0–0 14.Bd3? (14.0–0 Qe7=) 14...c5 (better is 14...Qd5!? 15.Qe2 Rad8–+) 15.0–0 (worse is 15.bc5 Qd5 16.Qe2 Qg2–/+ (16...Qc5?! 17.0–0=)) 15...Rc8 16.Qe2 Qe7 17.b5 Rfd8 18.Rd1 c4 19.Bf5 (19.Bc4 Rd1 Decoy) 19...Rd1 20.Qd1 Rc5 21.Rc2 g6 22.Bg4 c3 (22...Rd5 23.Qf1 Ng4 24.hg4–+) 23.Bf3+= Qc7 24.a4 Qa5 25.Bb7 Qa4 26.f4 Bc7 27.Bf3 Ba5 (27...Rb5?? 28.Nc3 Qb3 29.Nb5 Qe3 30.Kh1 Bf4 31.Ra2+–) 28.f5 (28.Qc1 Qb5 29.e4 Qc4–/+) 28...Qb5 29.fg6 hg6 30.Na3 Qa4 31.Qd4 (31.Qc1 Bb4 32.Nb1 Qe8–+) 31...Qa3–+ 32.Qf6 Qa1 33.Kf2 Qa4 34.Rc1 c2 (34...Qa2 35.Kg1 Qd2 36.Rf1–+) 35.Qe7?? (35.Qd6 Qb4 36.g3–+) 35...Qb4 36.Kg3 (36.Qd6–+) 36...Bc7 37.Kf2 Qd2 (37...Qd2 38.Kf1 Qc1 39.Ke2 Qd1 40.Kf2 Qd2 41.Be2 Rf5 42.Kg1 c1Q 43.Bf1 Qf1) 0–1. Casafus,Ruben – Torres Becchio,Gabriel, ARG–ch U20 Tucuman, 1977. (=1.Nf3 Nf6 2.b4 d5 3.e3 Bg4 4.Bb2 Nbd7 5.h3 Bf3 6.Qf3 e5 7.a3 Bd6)

6.Qf3 e6

7.a3 Bd6 8.c4 c6 9.d4 Nb6 10.c5 Na4 11.Bc1 Bc7 12.Bd3 =.

7.a3 Bd6 8.g4 0–0 9.d3 Nb6 10.Nc3+= (10.c4 Nfd7 11.c5 Na4 12.cd6 Nb2 13.Qe2 Qf6 14.Ra2 Nd3 15.Qd3; 10.Bg2 a5 11.ba5 Na4 12.Bf6 gf6 13.Nd2 Ra5 14.0–0 b5 15.c4; 10.Nd2 a5 11.Bf6 gf6 12.ba5 Ra5 13.d4 Ra3 14.Ra3 Ba3 15.Bd3; 10.Be2 a5 11.ba5 Ra5 12.Nc3 Qe7 13.0–0 Rfa8 14.a4 Na4 15.Na4) 10...c6 (10...a5 11.b5 Nfd7 12.d4 Qg5 13.h4 Qf6 14.Qf6 Nf6 15.g5) 11.h4 (11.Bg2 a5 12.b5 Rc8 13.g5 Nfd7 14.h4 Be5 15.Rb1) 11...Nfd7 12.g5 (12.Bg2 f5 13.gf5 Ne5 14.Qh5 ef5 15.Rg1) 12...Qe7 (12...f5 13.Bg2 Qe7 14.0–0 Ne5 15.Qh3) 13.Bh3 (13.Be2 Rfc8 14.Kd1 c5 15.bc5) 13...a5 (13...f5 14.Qe2 a5 15.b5) 14.b5 Rac8 (14...Rfc8 15.Ra2) 15.Qe2 Nc5 16.bc6 bc6 17.Rg1 Rb8 18.Nd1 (18.h5 Bh2 19.Rg4 Be5+=) 18...e5 19.Bc3 Nb7 (19...e4 20.Rb1–/+) 20.Qg4 (20.h5!?+=) 20...d4–/+ 21.Bb2 c5 (21...Nc5 22.ed4 ed4 23.Qe2 Qe2 24.Ke2–/+) 22.Bg2 c4 23.Bb7? (better is 23.Qe2–/+) 23...Rb7–+ (23...Qb7?! 24.ed4 Na4 25.de5 Nb2 26.ed6 cd3 27.Ne3–+) 24.Kf1 cd3 25.cd3 Na4 26.Bc1 Nc5 27.Bd2 Nb3 28.Ra2 Ba3 29.h5 Rb6 30.h6 gh6 31.gh6 Rg6 32.Qe4 Qe6 33.Rg6 hg6 34.ed4 Qh3 35.Kg1? Nd4 36.Qg2 Qd3 37.Nc3 Bb4 38.Qg3 Qg3 39.fg3 Nf3 (39...Nf3 40.Kg2 Nd2–+) 0–1. Nevednichy,V (2600) – Nanu,C (2500), TCh–ROU Superliga, Eforie Nord ROU, 2009.

7.b5 e5 8.Nc3 Nb6 9.a4 e4 10.Qg3 Nbd7 11.a5 h6 =.

7.b5 e5 8.Nc3 Nc5 9.Be2 e4 10.Qg3 Bd6 11.f4 Ne6 =.

7.b5 e5 8.Nc3 e4 9.Qf5 g6 10.Qf4 Bd6 11.Qh4= Be7 =.

7.b5 e5 8.Nc3 e4 9.Qg3 Rg8 10.Qg5 Nc5 11.Ne2 Be7 =.

7.Bc3 Bd6 8.a3 0–0 9.Be2 Ne4 10.Bb2 a5 11.b5 c5 =+.

7.Bc3 Bd6 8.Be2 Qe7 9.a3 e5 10.Qg3 e4 11.f4 ef3 =+.

7.Bc3 Ne4 8.a3 Nc3 9.Nc3 a5 10.b5 Bd6 11.d4 Qe7 =+.

7.Qf4 Bd6 8.Qh4 0–0 9.Nc3 Ne5 10.Na4 Qe8 11.Nc3 Ng6 –/+.

7.Qg3 Bb4 8.Qg7 Rg8 9.Qh6 e5 10.Rg1 c6 11.c4 dc4 =+.

7.Qg3 Ne4 8.Qg4 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 Qa8 =+.

7.Qg3 Rg8 8.a3 Bd6 9.Qf3 c6 10.Be2 Ne4 11.d3 Ng5 –+.

7.Qg3 Rg8 8.b5 Ne4 9.Qf3 Bd6 10.Nc3 Ne5 11.Qh5 Nf6 =.

7.Qg3 Rg8 8.Qh4 c6 9.b5 g5 10.Qd4 Ne4 11.bc6 bc6 =+.

7.a3 a5

8.ba5 Ra5 9.c4 Bd6 10.d4 Ne4 11.c5 Be7 12.Nc3 +=.

8.ba5 Bc5 9.d4 Be7 10.c4 Ra5 11.Bd3 0–0 12.0–0 =.

8.ba5 c6 9.Bc3 Bd6 10.d4 Ne4 11.Bb4 0–0 12.c4 =.

8.ba5 Bd6 9.d4 Ra5 10.c4 Ne4 11.c5 Ng5 12.Qg4 =.

8.ba5 Be7 9.c4 Ra5 10.Be2 0–0 11.0–0 Nc5 12.d3 =.

8.b5 a4 9.c4 Bd6 10.d4 e5 11.cd5 e4 12.Qd1 =.

8.b5 c5 9.c4 Bd6 10.cd5 ed5 11.d4 c4 =.

8.b5 c6 9.c4 Rc8 10.bc6 bc6 11.d4 Rb8 12.Ra2 =.

8.b5 c6 9.Be2 Bd6 10.c4 Rc8 11.bc6 bc6 =.

8.b5 Bd6 9.c4 0–0 10.d4 e5 11.cd5 e4 =.

8.b5 Bd6 9.d3 e4 10.Qd1 0–0 11.Nd2 =.

8.b5 Bd6 9.d4 e5 10.c4 e4 11.Qd1 dc4 12.Nd2 =.

8.b5 e5 9.Qg3 Ne4 10.Qf3 Qf6 11.Qf6 Nef6 12.d4 =.

8.b5 Be7 9.c4 0–0 10.cd5 ed5 11.Be2 Re8 12.0–0 =.

8.c3 Bd6 9.d3 0–0 10.b5 Ne5 11.Qd1 a4 12.Be2 =+.

8.Nc3 ab4 9.ab4 Ra1 10.Ba1 c6 11.b5 =+.

8.Qf4 ab4 9.ab4 Bd6 10.Qh4 Ra1 11.Ba1 Qe7 12.b5 =+.

8.Bf6 Nf6 9.b5 Bd6 10.c4 Qe7 11.cd5 ed5 12.Be2 =+.

8.Qg3 ab4 9.ab4 Ra1 10.Ba1 Ne4 11.Qg4 Qa8 12.Bc3 =+.

7.a3 c6

8.Ra2 a5 9.b5 Bd6 10.c4 e5 11.d4 e4 12.Qd1 =.

8.Ra2 a6 9.c4 a5 10.b5 Rc8 11.bc6 bc6 12.d4 =.

8.Ra2 b5 9.a4 a6 10.Qf4 ba4 11.Ra4 a5 12.b5 =.

8.Ra2 Bd6 9.c4 0–0 10.d4 e5 11.Qf5 Re8 12.Nd2 =.

8.Ra2 Be7 9.c4 0–0 10.d4 Re8 11.Bd3 dc4 12.Bc4 =.

8.b5 Bd6 9.Nc3 c5 10.g3 0–0 11.Be2 c4 12.0–0 =+.

8.c4 a5 9.b5 Rc8 10.bc6 bc6 11.d4 Rb8 12.Ra2 =.

8.c4 Rc8 9.d4 Bd6 10.Nd2 0–0 11.Be2 e5 12.c5 =.

8.c4 Bd6 9.Be2 dc4 10.Bc4 a5 11.b5 Qb6 12.Bf6 =.

8.c4 e5 9.cd5 cd5 10.Nc3 e4 11.Qf5 g6 12.Qf4 +=.

8.c4 Be7 9.d4 Nb6 10.cd5 Qd5 11.Nd2 Na4 12.Bc1 =.

8.Bd3 Bd6 9.Be2 a5 10.b5 Rc8 11.0–0 0–0 12.Rc1 =+.

8.d4 a5 9.b5 Qb6 10.Nc3 a4 11.Bd3 Ra5 12.0–0 =.

8.d4 b5 9.Nd2 a5 10.c3 e5 11.Qg3 ed4 12.ed4 =.

8.d4 Be7 9.c4 Nb6 10.cd5 Qd5 11.Nd2 Na4 12.Bc1 =.

8.Be2 b5 9.a4 ba4 10.b5 cb5 11.Bb5 Rb8 12.Bf6 =.

8.Be2 c5 9.bc5 Bc5 10.0–0 Rc8 11.Rc1 0–0 12.Ra2 =.

8.Be2 Bd6= 9.c4 dc4 10.Bc4 a5 11.b5 Qb6 12.Bf6 =.

8.Be2 e5 9.Qf5 g6 10.Qg5 h6 11.Qg3 Ne4 12.Qh2 =.

8.Be2 Be7 9.c4 dc4 10.Bc4 Nb6 11.Be2 Qd5 12.Qd5 =.

8.Qf4 a5 9.b5 Ne4 10.Nc3 e5 11.Qg4 Nc3 12.Bc3 =.

8.Qf4 Qb6 9.Nc3 Rc8 10.Rb1 a5 11.Na4 Qd8 12.b5 =.

8.Qf4 Nb6 9.Be5 Nfd7 10.Bc7 Qe7 11.d4 Rc8 12.Bb6 =.

8.Qf4 Qb8 9.Qb8 Rb8 10.c4 Bd6 11.g4 h6 12.f4 =.

8.Qf4 Rc8 9.Bd3 Qb6 10.Nc3 Be7 11.0–0 0–0 12.Rab1 =.

8.Bf6 Nf6 9.c4 d4 10.Ra2 a5 11.b5 Rc8 12.Rb2 =+.

8.g3 a5 9.Qf4 Be7 10.b5 0–0 11.Nc3 e5 12.Qf5 =.

8.g3 Qc7 9.Be2 e5 10.0–0 e4 11.Qg2 Bd6 12.Nc3 =.

8.g3 Bd6 9.Be2 e5 10.0–0 Nb6 11.Nc3 0–0 12.Qf5 =.

8.g3 e5 9.c4 dc4 10.Bc4 e4 11.Qf4 Be7 12.Nc3 =.

8.g3 Be7 9.c4 a5 10.b5 Rc8 11.d4 0–0 12.bc6 =.

8.Qg3 a5 9.b5 Ne4 10.Qf3 Nd6 11.a4 Rc8 12.Bd3 =.

8.Qg3 b5 9.a4 a6 10.Qf4 ba4 11.Ra4 a5 12.b5 =.

8.Qg3 Qb8 9.f4 Ne4 10.Qf3 Be7 11.Qg4 Rf8 12.Rg1 =.

8.Qg3 Ne4 9.Qg4 a5 10.b5 Ndf6 11.Qf3 Be7 12.Nc3 =.

8.Qg3 Qe7 9.Nc3 Qd6 10.Qd6 Bd6 11.Be2 0–0 12.g4 =.

8.g4 a5 9.b5 Bd6 10.c4 0–0 11.d4 e5 12.c5 =.

8.g4 Nb6 9.Nc3 Bd6 10.b5 0–0 11.a4 Nfd7 12.Qg2 Ne5 13.Be2 Nec4 14.Bc1 Bb4 15.Na2 Ba5 16.bc6 bc6 17.c3 Qd7 18.0–0 c5 19.d3 Nd6 20.Ba3 Rfc8 21.f4 Qa4–+ 22.Bb2 Qc2 23.Rfb1 Na4 24.Bd1 Qg2 25.Kg2 Nb2 26.Rb2 Rab8 27.Rab1 Rb6 28.Rb6–/+ ab6 29.Bf3 Rd8 30.Kf2 g6 31.g5 b5 32.e4 de4 33.de4 b4! 34.cb4 cb4 35.Nc1 Rc8 36.Nd3 Rc2 37.Kg3 Rc3 38.Nf2 Nc4 39.Ra1 Ra3 40.Rd1 b3 41.Be2 b2 42.Bd3 Bb6 (43.Kh2 Ra1–+) 0–1. Mikhaletz,Lubomir – Kruppa,Yuri, Zt Donetsk (Ukraine), 1998.

8.g4 Bd6 9.Nc3=+ Ne5 10.Qg2 Ng6 11.h4 h6 12.g5 =.

8.g4 e5 9.c4 Bd6 10.g5 Ne4 11.h4 Qb6 12.Ra2 +/–.

8.g4 Be7 9.d3 h6 10.h4 Qc7 11.g5 Ne5 12.Qg3 +/–.

7.a3 Be7

8.Ra2 0–0 9.c4 Bd6 10.d4 c6 11.c5 Bc7 12.Be2 =.

8.Ra2 a5 9.b5 Bd6 10.c4 c5 11.cd5 ed5 12.Nc3 =.

8.Ra2 a6 9.Be2 0–0 10.0–0 b5 11.d3 a5 12.ba5 =.

8.Ra2 c6 9.c4 0–0 10.d4 Re8 11.Bd3 dc4 12.Bc4 =.

8.Ra2 Bd6 9.c4 a5 10.b5 c5 11.cd5 ed5 12.Nc3 =.

8.Bb5 0–0 9.Nc3 a5 10.Na2 e5 11.Bd7 e4 12.Qf5 =.

8.Bb5 a5 9.Qf4 Bd6 10.Bd7 Kd7 11.Qg5 Rg8 12.b5 =+.

8.c3 Ne5 9.Qg3 Nc4 10.Bc1 0–0 11.d3 Nb6 12.Be2 =+.

8.Nc3 0–0 9.Qg3 a5 10.b5 Bd6 11.Qh4 Ne5 12.Be2 =.

8.Nc3 a5 9.b5 0–0 10.Be2 Bd6 11.d4 Rb8 12.e4 =.

8.Nc3 a6 9.Qg3 0–0 10.Be2 c5 11.bc5 Nc5 12.Rb1 =.

8.Nc3 c6 9.Be2 Bd6 10.d4 a5 11.b5 c5 12.0–0 =.

8.c4 0–0 9.d4 Nb6 10.c5 Na4 11.Bc1 Qd7 12.Bd3 =.

8.c4 a5 9.cd5 ed5 10.b5 Bd6 11.d4 Nb6 12.Nc3 =.

8.c4 Nb6 9.c5 Nbd7 10.Be2 a5 11.0–0 0–0 12.d3 =.

8.c4 c6 9.d4 0–0 10.Nc3 Re8 11.Be2 dc4 12.Bc4 =.

8.c4 Bd6 9.c5 Be7 10.Be2 0–0 11.0–0 a5 12.Nc3 +=.

8.Bd3 0–0 9.c4 Bd6 10.c5 Ne5 11.Qe2 Nd3 12.Qd3 =.

8.Bd3 a5 9.b5 e5 10.Bf5 e4 11.Qf4 h6 12.f3 =.

8.Bd3 a6 9.0–0 Bd6 10.Be2 0–0 11.c4 dc4 12.Qb7 =.

8.Bd3 Bd6 9.Be2 c6 10.0–0 a5 11.b5 0–0 12.c4 =.

8.Bd3 e5 9.e4 c6 10.0–0 de4 11.Be4 Ne4 12.Qe4 =.

8.d4 0–0 9.c4 a5 10.b5 c6 11.Nc3 Rc8 12.bc6 =.

8.d4 a5 9.c3 Bd6 10.b5 c5 11.Nd2 0–0 12.c4 =.

8.d4 Rb8 9.c4 c6 10.cd5 cd5 11.Bd3 Rc8 12.0–0 =.

8.d4 c6 9.Nd2 a5 10.b5 0–0 11.c4 cb5 12.cd5 =.

8.d4 Bd6 9.c4 c6 10.Nd2 Nb6 11.c5 Na4 12.cd6 =.

8.Qe2 0–0 9.Qb5 Qc8 10.Qe2 a5 11.b5 Qd8 12.Qf3 =+.

8.Qe2 a6 9.Qf3 0–0 10.Be2 a5 11.b5 Bd6 12.c4 =.

8.Qe2 c5 9.bc5 Bc5 10.Ra2 0–0 11.Nc3 a6 12.g4 =+.

8.Qe2 c6 9.Qf3 Bd6 10.Be2 a5 11.b5 Rc8 12.0–0 =+.

8.Qe2 Bd6 9.c4 dc4 10.Qc4 a5 11.Be2 ab4 12.ab4 =+.

8.Be2 0–0 9.c4 dc4 10.Bc4 c6 11.0–0 Nb6 12.Be2 =.

8.Be2 a5 9.b5 Bd6 10.c4 c5 11.cd5 Ne5 12.Be5 =.

8.Be2 c5 9.bc5 Bc5 10.0–0 Qb6 11.Ra2 Bd6 12.Nc3 =.

8.Be2 c6 9.c4 dc4 10.Bc4 Nb6 11.Be2 Qd6 12.0–0 =.

8.Be2 Bd6 9.c4 c6 10.c5 Bb8 11.0–0 Qc7 12.g3 =.

8.Qg3 0–0 9.Be2 a5 10.b5 Bd6 11.f4 Re8 12.0–0 =.

8.Qg3 a5 9.Qg7 Rg8 10.Qh6 ab4 11.ab4 Ra1 12.Ba1 =.

8.Qg3 g6 9.Nc3 Bd6 10.f4 a6 11.Be2 Rg8 12.Qh4 =.

8.Qg3 Rg8 9.Be2 Bd6 10.Qf3 c6 11.d4 Nb6 12.Nc3 =.

7.b5 Bd6

8.c4 0–0 9.d4 c5 10.dc5 Bc5 11.cd5 Bb4 =+.

8.c4 c5 9.cd5 ed5 10.Be2 0–0 11.0–0= Qe7 =.

8.c4 c6 9.Be2 0–0 10.bc6 bc6 11.Bf6 Nf6 =+.

8.c4 Qe7 9.Be2 0–0 10.0–0 c5 11.bc6 bc6 =.

8.Be2 c5 9.0–0 0–0 10.d4 Rc8 11.Ba3 Qb6 =+.

4.e3 e5

5.Be2 e4 6.Ne5 Be2 7.Qe2 Nbd7 8.c4 Bd6 9.cd5 Be5 10.Be5 Ne5 11.Nc3 0–0 12.0–0 c6 13.dc6 Nc6 14.f3 Nb4 15.Ne4 Ne4 16.fe4 Nd3 17.Rf3 Qd7 18.Rh3 Rad8 19.Qh5 h6 20.Rf1 Qe6 21.e5 Ne5 22.d4 Ng6 23.d5 Qe3 (time, 0–1). Nautiluschess – Beroean, ICS blitz, 2001.

5.Be5 Nbd7 6.Bc3+= Ne4 (6...Bd6 7.Be2 0–0 8.0–0 Ne4 9.a3 a5 10.b5 Re8 11.Bd4 c5 12.bc6+=) 7.h3 (7.Be2 Ndf6 8.a3 a5 9.b5 Bd6 10.Bd4 c5 11.bc6 bc6 12.d3+/–; 7.a3 a5 8.b5 Ndf6 9.Bd4 Bc5 10.Bc5 Nc5 11.d4 Nce4 12.Bd3+/–; 7.b5 Ndf6 8.Be2 Bd6 9.Bd4 c5 10.bc6 bc6 11.d3 c5 12.de4+=) 7...h6?? (better is 7...Be6+= 8.Bd4 Bb4 9.Bg7 Rg8 10.Bd4 c5 11.a3 Ba5 12.Bb2+=; 7...Nc3 8.Nc3 Be6 9.Rb1 Bd6 10.Nb5 Be7 11.Nbd4 0–0 12.Ne6+/–) 8.hg4+– Nc3 (8...Ndf6 9.Rh4+–) 9.Nc3 Qf6 (9...Nb6 10.a3+–) 10.Nd5 Qd6 11.Nc3 (11.Nf4 0–0–0+–) 11...Qb4 (11...Qg6 12.Nh4 Qe6 13.Nf5+–) 12.Rb1 Qg4 13.Rh4 Qg6 14.Re4 (14.Rb7 Qc6 15.Qb1 a6+–) 14...Be7 (14...Kd8 15.Rb7 a6 16.Bc4 Qg2 17.Bf7+–) 15.Rb7 Qc6 (15...Kd8 16.Nd4 Bc5 17.Qf3+–) 16.Qb1 Nb6 (16...Kf8 17.Nd4 Qg6+–) 17.Bb5 (17.Bb5 0–0 18.Bc6+–) 1–0. Schaar,Joerg (1970) – Brandl,Erwin (1825), RSLE, 2010.

5.Be5 Bb4

6.c3 Nc6 7.Bb5 (7.Qa4 0–0 8.cb4 Bf3 9.Bc3 Bg4 10.Ba6 Bc8 11.0–0 d4 12.Bb2+=; 7.Bc7 Qc7 8.cb4 Nb4 9.Qa4 Nc6 10.Be2 0–0 11.Nc3 Rfd8 12.Rc1=) 7...Be7 8.Bc6 bc6 9.h3 Bd7 10.0–0 0–0 11.Qc2 Ne8 12.d3 =.

6.c3 Bd6 7.Bf6 Qf6 8.Qb3+= Bc8 9.Qd5 0–0 10.d4 Nd7 11.Bd3 Qd8 12.0–0 +/–.

6.Bc3 Be7 7.Be2 Nc6 8.0–0 Ne4 9.Nd4 Be2 10.Qe2 Nc3 11.Nc3 Qd7 12.Ndb5 a6 13.Nd4 0–0–0 14.Qf3 f6 15.Nf5 Ne5 16.Ne7 Qe7 17.Qe2 g5 18.d4 Nc4 19.Na4 h5 20.Rab1 f5 21.Nb2 Na3 22.Rbc1 g4 23.h3 Qh4 24.Kh2 Rdg8 25.Rg1 g3 26.fg3 Qg3 27.Kh1 Rg4 28.Rcf1 Re4 29.Rf3 Qg5 30.Nd3 Nc4 31.g3 Rg8 32.h4 Re3 33.Re3 Qe3 34.Qe3 Ne3 35.c3 Kd7 36.Re1 Re8 37.Nf4 Kd6 38.Kg1 Re4 39.Kf2 Ng4 40.Kf1 Nf6 41.Kf2 b6 42.Nh3 c5 43.Ng5 Re1 44.Ke1 cd4 45.cd4 Ne4 46.Ne4 de4 47.Ke2 Kd5 48.Ke3 b5 49.Kf4 Kd4 0–1. valpa – Flynn, playchess.de, 2002.

6.Nc3 =.

5.Be5 Nc6

6.Bb5 Bb4 7.a3 Bd6 8.Bc6 bc6 9.Bd6 cd6 10.h3 Bf3 11.Qf3 Qb6 12.Nc3 =.

6.Bb5 Bb4 7.Nc3 0–0 8.Bf6 Qf6 (8...gf6 9.h3 Bh5 10.Rb1=) 9.Nd5+= Qd6 10.Nb4 Nb4 11.Be2 Qc5 (11...Rad8!?+=) 12.c3 Nd5 13.0–0 Rad8 14.Qb3 b6 15.Rfc1 Rfe8 16.d4 Qe7 (16...Qd6 17.c4 Nf4 18.Bd1+/–) 17.c4 Nf4 (better is 17...Nf6+/–) 18.Qc2?? (better is 18.ef4 Qe2 19.Re1 Bf3 20.Re2 Be2 21.d5+–) 18...Ne2+= 19.Qe2 Rd4 20.h3 Bf3 21.Qf3 Re4 22.Rc3 Qb4 The isolani on c4 becomes a target (22...Qc5 23.Rac1=) 23.Rac1= a5 (23...Qc5 24.Qd1=) 24.a3 (24.c5 b5=) 24...Qc5 25.R1c2 (25.Qd1 g6=) 25...R4e5 (25...c6 26.a4=) 26.Rd2= b5 (26...Rf5!? 27.Qb7 g6=) 27.Rd5+= Rd5 28.Qd5 Qd5 29.cd5 b4 30.ab4 ab4 31.Rc7 Rb8 32.Rc2 (32.d6 Kf8+/–) 32...b3 (32...Kf8 33.Kf1=) 33.Rb2+= Kf8 34.Kf1 Ke7 35.Ke2 Kd6 36.e4 Kc5 37.Kd2 (37.Kd3 Kb4 38.Rb1 Ka3 39.Ra1 Kb2=) 37...Kb4 (37...f5 38.ef5 Kb4 39.d6=) 38.Kc1 (38.Rb1 f5 39.f3 Kc5+=) 38...Kc3 39.f3 Ra8 40.Kb1 Ra4 41.Re2 Rd4 42.Re1 Rd3 (42...Kb4 43.Rc1=) 43.f4 f5 (better is 43...h5!?=) 44.e5+/– Rd5 45.e6 Rd8 46.e7 Re8 47.Re3 (47.g4!? fg4 48.hg4+/–) 47...Kd4+= 48.Re5 g6 (48...h5!?+=) 49.Kb2+/– Kc4 50.g4 fg4?? (better is 50...Kb4+/–) 51.hg4+– h5 (51...Kd4 52.Re1 h5 53.gh5 Kd3+–) 52.gh5 gh5 53.f5 h4 54.f6 h3 55.Rh5 Rg8 56.Rh4 Kd5 57.f7 1–0. Rodriguez Rodriguez,A – Brito Gil,AJ (1795), Cumana VEN, 1st Marquez Mem, 2014. (=1.Nf3 Nf6 2.b4 d5 3.e3 Bg4 4.Bb2 e5)

6.Bb5 Bb4 7.Nc3 Bc3 8.Bc3 0–0 9.d3 Nb8 10.h3 Bd7 11.Rb1 c6 12.Ba4 =.

6.Bb5 Bb4 7.Bc6 bc6 8.h3 Bh5 9.c3 Be7 10.Qa4 Qd7 11.Nd4 c5 12.Qc6 =.

6.Bf6 Qf6 7.Nc3 d4 8.Nd5 Qd6 9.c4 de3 10.Ne3 Bf3 11.Qf3 0–0–0 12.Rd1 =.

4.e3 e6

5.a3 a6 6.Be2 Bd6 7.0–0 Nbd7 8.d3 c5 9.bc5 Nc5 10.Nbd2 0–0 11.c4 Bf3 12.Nf3 dc4 13.dc4 Nce4 (13...Nfe4 14.Qc2=) 14.Qc2+= h6 15.Bd3 Nc5 16.Rad1 Nd3 (16...Qe7 17.Bf6 gf6 18.Be2=) 17.Rd3+/– Ne4 18.Rfd1 (18.Be5 Qe7+=) 18...Qc7= 19.Rd4 f5 20.Ne5?? (better is 20.Bc3=) 20...Be5–+ 21.Rd7 Qa5 (21...Bh2?! 22.Kf1=) 22.Rb7 (22.Be5 Qe5 23.Rb7 Rfd8–+) 22...Rad8 23.Be5 Qe5 24.f4 (24.Rbb1–+) 24…Qc3 (25.Rg7 Qg7–+) 0–1. Tain,Julio Antonio – Gross,Wilhelm, corr SOK–87–03, 1987.

5.a3 Nc6 6.h3 Bf3 (6...Bh5 7.Bb5=) 7.Qf3 Be7 8.Be2 (8.b5 Nb8 9.Be2=) 8...e5 (8...Qd6 9.Nc3=) 9.b5+= Na5 (better is 9...e4!? 10.Qg3 Na5+=) 10.Be5+/– Nc4? (better is 10...0–0!?+/–) 11.Bc4+– dc4 12.Qb7 0–0 13.Qc7 Qc7 14.Bc7 Nd5 15.Be5 Rab8 16.Bb8 Rb8 17.a4 Nb4 18.Na3 Rc8 19.Ke2 g6 20.c3 Nd5 21.a5 Rb8 22.Rhb1 Kg7 23.Nc4 f5 24.b6 ab6 25.Nb6 Nb6 26.Rb6 Rb6 27.ab6 Bc5 28.b7 Bd6 29.Ra6 Bc7 30.Rc6 Be5 (If Black now only could play Kh6...) 31.d4 Bb8 32.Rc8 (32...f4 33.Rb8 fe3 34.Ra8 ef2 35.b8Q f1Q 36.Kf1 Kh6 37.Ra7 Kg5 38.Qg3 Kf5 39.Qe5) 1–0. pcmvr (2560) – cnita, net–chess.com, 2006.

5.a3 g6 6.c4 Bf3 (6...a5 7.h3 Bf3 8.Qf3=) 7.Qf3+= Bg7 8.cd5 ed5 9.Qd1 (9.Be2 c6+=) 9...0–0 10.Be2 Nbd7 11.0–0 Ne4 12.Bg7 Kg7 13.d3 Nd6 14.Nc3 c6 15.Qb3 ½–½. Lebel,Patrick (2180) – Fruteau,Sabine (2190), Monaco tt, 1996. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 e6 4.e3 Nf6)

5.Bb5 c6+= 6.Ba4 (6.Be2 Bf3 7.gf3 Bb4–/+) 6...Bb4–/+ 7.c3 (7.0–0 Bf3 8.Qf3 Bd6–/+) 7...Be7 (7...Bd6 8.h3 Bf3 9.gf3–/+) 8.0–0 0–0 (8...Qb6 9.Bc1–/+) 9.d4 (9.d3 Qb6 10.Bb3 a5–/+) 9...Nbd7 (9...Qb6 10.Qd2–/+) 10.Nbd2 e5 Deflection: f3 11.Qc2 (11.de5 Ne5 12.Ne5 Bd1 Deflection Pinning; 11.Ne5 Bd1 Deflection Pinning) 11...e4–+ 12.Ne1? (better is 12.h3 Bh5 13.g4 ef3 14.gh5–/+) 12...b5 (12...a5 and Black can already relax 13.a3 b5 14.Bb3–+) 13.Bb3 Be2 (better is 13...c5 might be the shorter path 14.dc5 Nc5–+ (14...Bc5?! 15.h3–/+)) 14.g3?? a blunder in a bad position (14.Ne4 Bf1 (14...de4?! 15.Qe2 Bd6 16.a4=) 15.Nf6 Nf6 16.Kf1 a6–+) 14...Nb6 (14...Bf1 keeps an even firmer grip 15.Nf1 a5 16.Qe2–+) 15.Ng2?? White crumbles in face of a dire situation (better is 15.Ne4 Bf1 16.Nf6 Bf6 17.Kf1–/+) 15...Bf1 (15...Bd3 keeps an even firmer grip 16.Qc1 a5 17.Bd1 Bf1 18.Nf1–+) 16.Nf1 (16.Rf1 does not win a prize 16...c5 17.Qc1 h6–+) 16...a5 17.a3 a4 18.Ba2 Bd6 19.h3 Qe7 20.Nh2 Qd7 21.Ng4 Ng4 22.hg4 Qg4 23.Rf1 f5 24.Nf4 g5 25.Ng2 Rf6 26.Qd1 Qh3 27.f4 Qg3 28.Qe1 gf4 29.ef4 Qe1 30.Re1 Nc4 31.Bc1 Kf7 0–1. Johansen,Alf Age – Paulsen,Tor Arne (1860), Hammerfest op, 2001. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 e6)

5.c3 Nbd7 6.Bb5 Bd6 7.0–0 0–0 8.d4 Ne4 9.Bd7 Qd7 10.Ne5 Be5 11.Qg4 f5 12.Qh5 Bd6 13.f3 Rf6 (13...Nf6 14.Qh4–/+) 14.f4 (better is 14.fe4 Rh6 15.Qe2 Bh2 16.Kf2 fe4 17.Ke1+=) 14...Rh6 15.Qe2 g5 (15...Qe7 16.Nd2–/+) 16.Nd2=+ gf4 17.ef4 Qg7 18.Ne4 fe4 (Black gets the initiative) 19.Qe3 Rf8 20.Rf2 Rg6 21.g3 h5 22.Re1? (better is 22.Kg2=+) 22...h4–+ 23.Kg2 Rg4 24.Kh3 (24.Bc1–+) 24...hg3 25.hg3 Qh6 26.Kg2 Bf4 27.Rf4 Qf4 (better is 27...Rff4 28.Bc1 Qh5–+) 28.Qf4–/+ Rff4 29.Kh3 Rf2 30.Kg4 Rb2 31.Kg5 (31.a4!?–/+) 31...Ra2 32.Kf6 Rf2 (32...Rc2 33.Ke6 c6 34.Kd6–+) 33.Ke6 c6 34.b5 Kg7 35.Ra1 Rf6 (35...Kg6 36.bc6 bc6 37.Kd6 Rf6 38.Kc5–/+) 36.Ke5 e3 37.bc6 Rc6 38.Kd5 Rc3 39.Ra7 e2 40.Rb7 Kf8 (41.Rb8 Ke7 42.Rb7 Kf8 43.Rb8 Ke7 44.Rb7 Kf8=). Belsunce – Javiot, France cp, 1984.

5.c4 c6 6.b5 dc4 7.Bc4 Nbd7 8.a4 Bb4 9.Qb3? Qa5 10.Bc3 Bc3 11.Qc3 Qc3 12.Nc3 Ke7 13.Be2 Rhd8 14.bc6 bc6 15.Nd4 Rac8 16.f3 Bh5 17.Ba6? Rc7 18.Kf2 Nc5 19.Be2? Rb8 20.Rhb1 Rb1 21.Rb1 Bg6 22.e4 Nd5? 23.ed5 Bb1 24.Nb1 Na4 25.dc6 e5 26.Nb5 Rc6 27.Na7 Rc1 28.Na3 Nb6 29.N7b5 Ra1 30.Nc4 Nc4 31.Bc4 h6 32.Nc3 f6 33.d3 Kd6 34.Ne4 Ke7 35.Ng3 g6 36.h4 f5 37.Ne2 Kf6 38.Nc3 Rh1 39.Nd5 Kg7 40.g3 Rh2 41.Kg1 Rb2 42.Nc7 Kf6 43.Ne6 Ke7 44.h5 g5 45.Ng7 Kf6 46.Ne8 Ke7 47.Nc7 f4 48.g4 Rc2 49.Nb5 Rc1 50.Kf2 Rc2 51.Ke1 Rb2 52.Kd1 Rf2 53.Bd5 Rb2 54.Bc6 Ra2 55.Kc1 Ra6 56.Be4 Rb6 57.Nc3 Kd6 58.Kc2 Ra6 59.Nd5 Kc5 60.Kb3 Kd4 61.Kb4 Ra1 62.Kb5 Rc1 63.Ne7 Ke3 64.Nf5 1–0. Heinola – Peltomaa, 1984.

5.a3 a5

6.b5 c5 7.c4 Nbd7 8.d4 Nb6 9.Nbd2 Bd6 10.Be2 Rc8 11.Rc1 0–0 12.0–0 Qe7 (12...cd4 13.cd5 Rc1 14.Qc1 de3 15.fe3 Nbd5 16.h3 Bf3 17.Rf3–/+) 13.a4 Nbd7 14.Ne5 Be2 15.Qe2 Ne4 16.Ne4 de4 17.f4 ef3 18.Qf3 Ne5 19.de5 Bb8 20.Bc3 b6 21.Qg4 Rfd8 22.Rcd1 Rd1 23.Rd1 Rd8 24.g3 Bc7 25.Kf2 Rd7 26.Ke2 Rd1 27.Kd1 Qd8 28.Ke2 Qa8 29.Qf3 Qf3 30.Kf3 h6 31.Kg4 Kh7 32.h4 Bd8 33.Kf3 Kg6 34.Kg4 h5 35.Kf4 Be7 36.Be1 Kh6 37.Ke4 g5 38.Kf3 Kg6 39.Ke4 Bd8 40.Bf2 Be7 41.Be1 ½–½. Bock,Ortwin (1855) – Baumgartner,Jakob (1840), Regionalliga SO, 2005. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Bb2 e6 5.a3 a5)

6.Nc3 Nbd7 7.ba5 Ra5 (7...Bd6 8.Nb5 Bc5 9.h3 Bh5 10.Bc3 c6 11.Nbd4 Ne4 12.Bb4 e5 13.Nb3=) 8.h3 Bf3 (8...Bh5 9.g4 (9.Be2 Bf3 10.Bf3 Bd6 11.Be2 0–0 12.Nb5 Be7 13.0–0+=) 9...Bg6 10.Nh4+= Be4 11.Rg1 h6 12.Ne4 de4 13.d3+=) 9.Qf3 Be7 (9...Ne5 10.Qg3 Ng6 11.Be2 Bd6 12.f4 d4 13.Nd1–/+) 10.Be2 c6 (10...0–0 11.0–0 c6 12.a4 Bd6 13.Ba3+=) 11.0–0 Qc7 (11...Bd6 12.Rfb1 0–0 13.d4+=) 12.d4 (12.Rfb1 0–0+= 13.a4+=) 12...0–0 13.Ra2 (13.e4+=) 13...h6 (13...Rfa8 14.Rfa1+=) 14.Rfa1 Rfa8 15.a4 Bb4 16.Bd3 b5 17.e4 Nb6 18.e5 Nfd7 19.Qg4 Na4 20.Na4 Ra4 21.Ra4 Ra4 22.Rb1 Qa5 23.Qf3 Ra2 24.Qd1 Nb6 25.Bc1 Nc4 26.Kh2 Ra1 27.Be3 Rb1 28.Qb1 Bc3 (28...Ne3 29.fe3 Bc3 30.Be2–+) 29.Kg3? (29.Bc4 bc4 30.Qb8 Kh7 31.Qb7–/+) 29...Nb2 30.Qf1 Qa4 31.f4 Bd4 32.Bc1 Nd3 33.Qd3 c5 34.Kf3 b4 35.Qd1 Qa1 36.Ke2 c4 37.Bd2 Qa3 38.Bc1 Qc3 39.Qd2 b3 (39...b3 40.Qc3 Bc3–+) 0–1. Frenzel,Lothar (2075) – Boehme,Sebastian (2560), RSM2009 remoteschach.de, 2009.

6.d4 ab4–/+ 7.Be2 (7.Bb5 c6 8.Bd3 ba3 9.Na3 Bd6–/+) 7...Bd6 8.0–0 0–0 9.c3 (9.ab4 Ra1 10.Ba1 Bb4–/+) 9...bc3 10.Nc3 c6 11.Qb3 Nbd7 (better is 11...Qc7!? 12.h3 Bf3 13.Bf3 Nbd7–/+) 12.Qb7=+ Rb8 13.Qc6 Rb6 14.Qb6 (14.Qa4 Bf3 15.Bf3 Rb2–+) 14...Qb6 15.Na4 (15.Rfb1 Qa5 16.h3 Bf3 17.Bf3 Rc8–+) 15...Qb3 16.Bd1 Qb5 17.Ra2 (17.Bc2 Ra8–+) 17...Bf3 18.gf3 Bh2! 19.Kg2 (19.Kh2 Qf1) 19...Bd6 (19...Qc4 20.Nc3–+) 20.Bc2 (20.Rh1 Qd3–+) 20...Qc4 21.Nc3 Rb8 22.Ba1 Ra8 23.Rb1 Ra3 24.Ra3 Ba3 25.Bd1 h5 26.Be2 Qc6 27.f4 Qa8 28.Kh3 Bb4 29.Bf3 Bc3 30.Bc3 Qa3 31.Bb4 Qa2 32.Rf1 Qc4 33.Rb1 Qc2 34.Rf1 g5 35.fg5 Qf5 36.Kg2 Qg5 37.Kh3 Qf5 38.Kg2 e5 39.Be1 ed4 40.ed4 Qg5 41.Kh3 Nf8 42.Rh1 Ng6 43.Bb4 Nf4 44.Kh2 Ng4 45.Bg4 Qh4 46.Kg1 Qg4 47.Kf1 Qd1 48.Be1 Qe2 49.Kg1 Qe1 50.Kh2 Qf2# 0–1. Ananse – Stobor, 15th WMCCC Paris FRA, 1997.

6.b5 Bd6

7.c4 0–0=+ 8.Nc3 c6 (8...dc4 9.Bc4 Nbd7 10.d4=) 9.h3 Bh5 10.bc6 (10.d4 b6=) 10...bc6 11.cd5 (11.d4 Nbd7=) 11...cd5 12.Nb5 Be7 13.Rc1 a4 (13...Nbd7 14.Nbd4=) 14.Be5 Ne8 (14...Ne4 15.Be2=) 15.g4 (15.d4 Nd6 16.Bd6 Bd6=) 15...Bg6=+ 16.Nfd4 (better is 16.Bd4=+) 16...Nd6 (better is 16...Bf6!? 17.Bf6 Nf6=) 17.Bg7!+/– (White gets the initiative) 17...Kg7 18.Nc7 Bh4 (18...Be4 19.Rg1 Nc4 20.Nce6 fe6 21.Ne6 Kg8 22.Nd8 Nb2=) 19.Na8+– Ne4 20.Rh2 (20.Qa4 Nf2 21.Bb5 Nh1 22.Ke2 Ng3 23.Kd1 Qf6–+) 20...Nd7 21.Rc7?? (21.Nc7 Ndc5 22.Ncb5+–) 21...Bf2?? (21...Ndc5 22.Qa1 Kg8 23.Rc5 Nc5–+) 22.Rf2+– Qh4 23.Qf3 Ne5 24.Qf4 Nf2 (24...Qf2?? 25.Qf2 Nf2 26.Ne6 (26.Kf2?! Ra8 27.Ne6 Kf6+–) 26...Kg8 27.Nf8 Nfd3 28.Bd3 Nd3 29.Ke2 Kf8 30.Nb6+–) 25.Qf2 (25.Qe5?! Kg8 26.Nf3 Nd3 27.Kd1 Qf2 28.Bd3 Bd3 29.Qg5 Kh8 30.Qf6 Kg8 31.Qg5 Kh8 32.Qf6 Kg8 33.Qg5=) 25...Qf2 26.Kf2 Ra8 27.Ne6 Kh6 (27...Kf6 28.Nf4 Be4 29.d3+–) 28.Nf4 Rb8 (28...Be4 29.d3 Bg6 30.d4+– (30.Nd5?! Bd3 31.Bd3 Nd3 32.Ke2 Ne5+–; 30.Ng6?! fg6 31.Rc5 Rf8 32.Kg2 g5+–)) 29.d4 (29...Rb2 30.Kg3+–; 29.Nd5?! Rb2 30.Nb4 Rd2 31.Kg3 Rd7+–) 1–0. Poley,V (2395) – Mullon,J (2365), 7th Festival IM, 2005.

7.c4 Nbd7 8.d4 c5 (8...0–0 9.c5 Be7 10.Bd3=) 9.cd5 ed5 10.dc5 Nc5 11.Nc3 Bf3 12.Qf3 0–0 13.Rd1 Increasing the pressure on the isolated pawn on d5 13...Be5 14.Be2 Qd6 15.Qh3 Rac8 16.0–0 Rfe8 17.Bf3 Qe6 18.Qe6 fe6 19.Be2 Nfd7 (19...Nb3 20.Rd3+=) 20.f4= Bf6 21.g4 h6 22.Rfe1 Rf8 23.Bf3 (23.Kg2 Nb6+=) 23...Nb6+= 24.Re2 Ncd7 25.Rc1 g5 26.Rcc2 gf4 27.ef4 Bh8 28.f5+= Ne5 29.Bg2 d4 30.fe6 d3 31.Nd5 Nd5 32.Bd5 dc2 33.e7 Rf7 34.Rc2 Re8 35.Kh1 Ree7 36.Rc8 Kh7 37.Rh8 Kh8 38.Bf7 Rf7 39.Be5–/+ Kg8 0–1. Andersen,Lars Kirstein (2085) – Ottesen,Soeren Rud (2400), DM, 2007. (=1.Nf3 Nf6 2.b4 d5 3.e3 Bg4 4.Bb2 e6 5.a3 a5)

7.c4 Nbd7 8.cd5 ed5 9.Be2 0–0 10.h3 Bf5 11.0–0 h6 12.Nc3 Qe7 13.d3 Rfc8 14.Na4 Rab8 (14...Nb6 15.Nc3=) 15.Qd2 c6 16.bc6 (16.Qa5?? Ra8 17.Qd2 Ra4 18.bc6 bc6–+ (18...Rc6?! 19.Nd4 g6 20.Nc6 bc6 21.g4–+)) 16...bc6 (16...Rc6? 17.Nd4 Bg6 18.Nc6 bc6 19.Rfc1+–) 17.Bc3 (17.Qa5?? Ra8 18.Qd2 Ra4–+) 17...Ba3 18.Ba5 Bd6 19.Rfb1 (19.Nd4 Bg6=) 19...c5 20.Nb6 (20.Nh4 Bh7+=) 20...Nb6+= 21.Rb6 Nd7 (21...Rb6 22.Bb6 Qb7 23.Ba5+=) 22.Ra6= Ne5 23.Bc3 Nc6 24.R6a4 Rb6 25.Bf1 Rd8 26.Be2 Rdb8 27.Ra8 Qd8 28.Rb8 Qb8 29.Qa2 Nb4 30.Qd2 Rb5 31.Bf1 Rb7 ½–½. Muri,Heinrich (2410) – Vlasveld,W. Martin (2470), European TC VII, Final, 2008.

7.h3 Bf3 8.Qf3 Nbd7 =.

7.h3 Bh5 8.Be2 0–0 9.0–0 Nbd7 10.d3 Qe7 11.Nbd2 Bf3 12.Bf3 c6 13.bc6 bc6 14.c4 Rfb8 15.Qc2 a4 16.d4 Bc7 17.Rfb1 Qd6 18.g3 Ba5 19.c5 Qc7 20.Bc1 e5 21.Rb8 Qb8 22.Rb1 Qe8 23.Nf1 e4 24.Bg2 Nf8 25.Qa4 Ne6 26.Qb3 Qc8 27.Qb7 Qe8 28.Qb2 Ng5 29.Nh2 h6 30.Qb7 Ne6 31.Qb3 Ng5 32.Qd1 Rb8 33.Rb2 Rb2 34.Bb2 Qc8 35.Qf1 Qb7 36.Qe2 Qc8 37.Ng4 Ng4 38.Qg4 Qb7 39.Bc1 Qb1 40.Qd1 Bc3 41.Qf1 Ne6 42.h4 Qc2 43.Bh3 Nf8 44.Bg4 Nh7 45.Qd1 Qb1 46.Kg2 Nf6 47.Be2 Qa2 48.Qf1 Kh8 49.Bd1 Qb1 50.Ba4 Qb7 51.Qe2 Qa8 52.Bd1 Qa5 53.g4 Ng8 54.Bb2 Bb2 55.Qb2 Qa8 56.f3 Qe8 57.Qf2 Qe6 58.g5 Qg6 59.Qg3 ef3 60.Kf2 Kh7 61.Bf3 Qc2 62.Be2 Ne7 63.Qc7 Qe4 64.Qf4 hg5 65.hg5 Kg6 66.a4 Qf5 67.a5 Qg5 68.Qd6 Kh7 69.Bd3 g6 70.a6 Kg7 71.Qc7 Qh4 72.Ke2 Qg4 73.Kd2 Nc8 74.Qc6 Qe6 75.Qb7 g5 76.a7 Na7 77.Qa7 Qc6 78.Qb6 Qa8 79.c6 g4 80.c7 g3 81.Qd6 Qa5 82.Kc2 Qa2 83.Kc3 Qa1 84.Kb3 Qd1 85.Bc2 Qg4 86.Qe5 Kg8 87.Qe8 Kg7 88.c8Q Qc8 89.Qc8 g2 90.Qg4 Kf6 91.Qg2 Ke6 92.Qg7 Ke7 93.Bg6 Kd7 94.Qf7 Kd6 95.Bf5 Kc6 96.Qa7 Kb5 97.Bd7 1–0. bambinik (2355) – queentaker (2445), Internet, 3m , 2002.

6.b5 Nbd7

7.c4 dc4 8.Bc4= Bd6 9.d4 c5 (9...0–0 10.0–0=) 10.bc6 bc6 11.Nbd2 Rb8 12.Qc1 Qc7 (12...0–0 13.Ne5 Be5 14.de5=) 13.h3 Bf3 14.Nf3 0–0 15.0–0 (15.Rb1 c5 16.dc5 Qc5=) 15...Nb6 16.Bb3 Rfc8 17.Qd2 (17.Rb1 Qe7=) 17...a4 18.Ba2 Qe7 19.Rfe1 Ne4 (19...Rd8 20.e4 Bc7 21.Rac1+=) 20.Qd3 Nd5 (20...Ng5 21.Ng5 Qg5 22.Rab1=) 21.Rab1 f5 (21...Ndf6 22.Rec1=) 22.Rec1 Rb6 23.Ba1 (23.Rc2 Rcb8 24.Nd2 Nd2 25.Rd2 Qg5=) 23...Rb1 (23...Ba3 24.Rb6 Nb6 25.Rb1=) 24.Rb1= Ba3 (24...c5 25.Bd5 ed5 26.dc5 Rc5 27.Nd4=) 25.Qa6 Qe8 26.Qa4 Ra8 (26...Bd6 27.Bb3=) 27.Qc4 Nd6 (27...Bd6 28.Bb3=) 28.Qf1 Ne4 29.Bb3 (29.Bc4 Bd6=) 29...Bd6 30.Qc1 Ba3 31.Qc2 Bd6 32.Nd2 (32.Bb2 c5=) 32...Nd2= 33.Qd2 Rb8 34.Qc2 Kh8 35.Bc4 (35.Bb2 Kg8+=) 35...Rb1 (35...Kg8 36.Bb2+=) 36.Qb1 Qa8 37.Bb2 Qa4 38.Be2 Kg8 (38...Qa5 39.Qc1 Qc7 40.Ba3+=) ½–½. Hemzo,Miguel Angelo – Benassi,Aspasio, Orang–Utan Invitational, 2001.

7.c4 c5 8.h3 Bh5 9.cd5 ed5 10.Nc3 d4 11.Na4 Be7 12.Be2 de3 13.de3 0–0 14.0–0 Qc7 15.Rc1 Rad8 16.Nd2 Bg6 17.Nc4 Ne4 18.Qb3 b6 19.Rcd1 Bh4 20.Bg4 f5 21.Bf3 Kh8 22.Qc2 Be7 23.Be4 fe4 24.Bc3 Qb8 25.Rd2 Qa7 26.Rfd1 h6 27.f4 Kh7 28.g4 Qb7 29.Rd5 Qc7 30.R1d2 Qa7 31.Qd1 Be8 32.Ncb6! Nb6 33.Rd8 Bb5 34.Rf8 Na4 35.Bg7 Kg7 36.Qa1 Kf8 37.Qh8 Kf7 38.Qh7 Kf8 39.Qh6 Kf7 40.Qh7 Kf8 41.Rd8! (41.Rd8 Bd8 42.Qa7+–) 1–0. Degterev,Pavel (2260) – Prata,Jorge (2020), CP–2008–Q–00004, 2010.

7.c4 Bd6 8.cd5 ed5 9.Be2 =.

7.c4 Bd6 8.h3 Bh5 (8...Bf5 9.cd5 ed5 10.Be2=) 9.d4= 0–0 (9...dc4 10.Bc4 0–0 11.Nbd2=) 10.c5 Be7 11.Be2 Ne4 12.Nbd2 (12.0–0 Ndf6=) 12...Ndf6 (12...Nd2 13.Qd2 Nf6 14.Qc2=) 13.0–0 b6 14.Ne4 (14.c6 Bd6=) 14...Ne4 15.cb6 (15.c6 Bd6=) 15...cb6 16.Ne5 Be2 17.Qe2 a4 (17...Bd6 18.Rfc1=) 18.Rfc1 (18.Rac1 Bd6=) 18...Bh4 19.g3 Be7 (19...Bf6 20.Nc6 Qd7 21.Rc2=) 20.Kg2 (20.Rc2 Bd6=) 20...Bd6 21.Rc6 f6 22.Nf3 Ra7 (22...Qb8 23.Rac1=) 23.Nd2 (23.Rac1 Qb8=) 23...f5 24.Rac1 Kh8 (24...Ra5 25.Nf3+=) 25.Nb1 (25.Nf3 g5=) 25...g5 Black prepares f4 (25...Kg8 26.Qc2+=) 26.Nc3 f4 27.Qg4 (27.ef4 gf4 28.Qe1 Nc3 29.R1c3 fg3 30.fg3 Raf7+=) 27...Nc3= 28.R1c3 fg3 29.fg3 Raf7 30.Rc2 (30.Qe6?? Rf2 31.Kg1 Rf1 32.Kg2 R8f2) 30...Qf6 31.Qe2 (31.Rd6?? Qf1 32.Kh2 Rf2 33.Rf2 Rf2; 31.Rb6?? Qf1 32.Kh2 Rf2 33.Rf2 Rf2) 31...Qe7 32.e4 (32.Rb6 Qd8 33.Rbc6 Qb8=) 32...Ba3 33.Ba3 Qa3 34.ed5 (34.Re6 Rf3 35.Qe1 Qd3–+; 34.Rb6 Rf3 35.Qe1 Qd3–+) 34...ed5 35.Qe5 Kg8 (35...Rg7!?+=) 36.Qg5+/– Kh8 37.Qe5 (37.Qd5?! Qd3 38.Qe5 Kg8=; 37.Rb6?? Qf3 38.Kh2 Qf2 39.Rf2 Rf2 40.Kg1 Rf1 41.Kg2 R8f2) 37...Kg8 38.Qd5 1–0. Ortiz,Clodomiro (2315) – Schmid,Pablo (2025), FICGS, 2013. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 e6 4.e3 Nf6 5.a3 a5 6.b5 Nbd7)

7.Be2 Bd6 8.d3 0–0 9.Nbd2 a4 (9...Qe7 10.h3 Bf5 11.Nh4=) 10.c4 c6 11.h3 (11.bc6 bc6 12.h3 Bh5=) 11...Bf3 12.Nf3 e5 (12...cb5 13.cb5 Qa5 14.Qd2–/+) 13.g4 (13.bc6 Qa5 14.Nd2 bc6=) 13...Qe7 (13...dc4 14.dc4 Nc5 15.0–0+=) 14.Nh4 (14.g5 Ne8 15.bc6 bc6+=) 14...g6+= 15.Nf3 (15.g5 Ne8 16.bc6 bc6+=) 15...Rfd8 (15...e4 16.de4 de4 17.g5 ef3 18.gf6–/+) 16.cd5 (better is 16.g5!? Nh5 17.0–0+=) 16...cd5 (16...cb5!? 17.d4 Nd5 18.Bb5 Bb4 19.Kf1 Bc3 20.Bc3 Nc3–/+) 17.Rc1 0–1. Eder,Matthias (2115) – Petschar,Kurt (2315), Feistritz an der Drau AUT, Men Ch, 2014.

7.Be2 h6 8.0–0 Bd6 9.c4 dc4 10.Bc4 0–0 11.Be2 c6 (11...e5 12.d3+=) 12.bc6 bc6 13.h3 Rb8 14.Qc2 Bf3 (14...Bf5 15.d3 Qb6 16.Bc3=) 15.Bf3= Qb6 16.Bf6 Nf6 17.d3 (17.Nc3 Qb2 18.Rfc1 Rfc8=) 17...Qb3 (17...Qb2 18.Qb2 Rb2 19.Rd1=) 18.Ra2 (18.Rc1 Qc2 19.Rc2 c5=) 18...Rfd8 19.Rd1 Nd5 20.d4 ½–½. Kural,A. Serhat (2000) – Gutierrez Dopino,Jose Maria (2145), Champions League, 2007.

7.h3 Bf3 8.Qf3 Bd6 9.c4 0–0 (9...c5 10.cd5 ed5 11.d4=) 10.cd5 Nd5 11.Nc3 (11.d4 c5=) 11...Ne5 12.Qe4 f5 13.Qd4 Nf7 14.Bc4 Be5 15.Qd3 Re8 16.Rc1 (worse is 16.Nd5 Bb2 (worse is 16...ed5 17.Bd5 Kh8 18.Bc3+=) 17.Ra2 Ne5–/+; 16.Bd5?! ed5 17.f4 d4 18.fe5 Ne5 19.Qf5 dc3 20.Bc3 g6+=) 16...f4 17.Qe2 (worse is 17.Nd5 Bb2 (worse is 17...ed5 18.Bd5 Bb2 19.Bf7 Kf8 20.Qd8 Red8 21.Rc7+=) 18.Rc2 Ne5–+; 17.Bd5?! ed5 18.0–0 d4 19.ed4 Qd4 20.Qd4 Bd4=) 17...Nd6 18.Bd3 (worse is 18.Nd5 Bb2 19.Rc2 f3 20.gf3 Nc4–/+) 18...Qg5 19.0–0 (19.Qg4 Qh6=) 19...Rf8 20.Qg4 Qg4 21.hg4 Rad8 22.Rc2 Bc3 23.Bc3 Nc3 24.Rc3 Rd7 25.Rfc1 fe3 26.de3 Rff7 27.f4 g6 28.Kf2 b6 29.Rc6 Kg7 30.g5 Kf8 31.Ke2+/– Rfe7 32.g3 Nb7 33.R6c4 Nc5 34.Be4 Rd6 35.Bc6 e5 36.e4 Nb3 37.R1c3 Nd2 38.Ra4 Rd4 39.Rd4 ed4 40.Rc1 Ne4= 41.Be4 Re4 42.Kd3 Re3 43.Kd4 Ra3 44.Rc7 Rb3 45.Rh7 Kg8 46.Ra7 Rb5 47.Kc4 Rc5 48.Kd4 Rb5 49.g4 Kf8 50.Ke4 White plans f5 50...Rb4 51.Ke5 a4 52.f5+/– Rc4 53.Ke6 Rc6= 54.Ke5 Rc5 55.Ke4 ½–½. Hansen,Marco (2290) – Buettner,Fritz (2445), CiF, 2009.

5.a3 c5!

6.b5 Nbd7 7.h3 Bh5 8.g4 Bg6 9.c4 h6 10.Nc3 Nb6 11.cd5 Nfd5 12.Ne5 Bh7 13.Bg2 Qc7 14.Nd5 Nd5 15.Rc1 b6 (15...f6!? 16.Nc4 Qd7=) 16.Qb3 Rd8 17.d4 Bd6 (better is 17...f6!? 18.Nc6 Rd7+=) 18.Nc6+– (18.Bd5?! ed5 19.Qd5 Be5 20.Qe5 Qe5 21.de5 Ke7+=) 18...Rd7 (18...0–0!? 19.Nd8 Rd8 20.Bd5 ed5 21.Qd5 Qe7 22.dc5 bc5+–) 19.dc5 Bc5 20.Bg7 (20.Be5 Qb7 21.Bg7 Rg8 22.Bh6 Qc7+–) 20...Rg8? (20...Ne3 21.Bd5 Rd5 22.Bh8 Qf4–/+) 21.Be5 Bd6 22.Bb2 Bc5 23.Nd4 Qd6 24.Bd5 Qd5+/– 25.Qd5 Rd5 26.Nc6 Rd7 27.Ne5 Rc7 28.Rd1 Be4 29.f3 Bc2= 30.Rd2 Be3 31.Rd6 Bc5 32.Rd2 Ba4 33.Nc6 Be7 (34.Ne7 Ke7=+). Gross,Wilhelm – Merten,Rainer, xix/08, 1989.

6.Bb5 Nc6 7.Bc3 Qb6 8.Bc6 bc6 9.Bf6 gf6 10.c3 e5 11.h3 Bh5 12.d4 cd4 13.ed4 Bd6 14.0–0 0–0–0 15.Qc2 Bg6 16.Qe2 Rde8 17.Re1 ed4 18.Qd2 d3 19.a4 Re4 20.a5 Qc7 21.Na3 Rhe8 22.Qh6? (better is 22.c4–/+) 22...Bf4–+ 23.Qg7 (23.Qh4 d2 24.Re4 Be4 25.Nd2 Bd2 26.Nb1–+) 23...Re1 24.Re1 (24.Ne1 d2 25.Nf3–+) 24...Re1 25.Ne1 d2 26.Kf1 d1Q 0–1. Yannick – Daiva, playchess.de, 2005.

6.c3 Nc6 7.Be2 a6 8.0–0 Be7 9.bc5 Bc5 10.Qb3 Qb6 11.Qb6 Bb6 12.h3 Bf3 13.Bf3 0–0 14.d3 Ne5 15.Be2 Rac8 16.Nd2 Ba7 17.c4 Ng6 18.Bf3 b5 19.cb5 (better is 19.Bf6!? gf6 20.cd5+/–) 19...ab5 20.g3 ½–½. grasimenezes (2275) – israelflavio (2240), net–chess.com, 2013. (=1.b4 d5 2.Bb2 Nf6 3.Nf3 Bg4 4.e3 e6 5.a3 c5)

6.c4 cb4 7.Qa4 Qd7 8.ab4 Qa4 9.Ra4 Bf3 10.gf3 dc4 11.Bc4 a6 12.b5 a5 13.Bc3 b6 14.Bf6 gf6 15.Rg1 Nd7 16.d4 Rc8 17.Ke2 Bb4 18.Bb3 Ke7 19.h4 Rhg8 20.Rg3 Rg6 21.Nd2 Rcg8 22.Ne4 f5 23.h5 Rg3 24.Ng3 Nf6 25.f4 Rg4 26.Ra1 Rh4 27.Rc1 Nd5 28.Bd5 ed5 29.Nf5 1–0. aspasio – hiperboreo, ICC, 1999.

6.h3 Bh5 7.Be2 cb4!? 8.ab4 Bb4 =+.

6.h3 Bh5 7.Be2 Nc6 8.b5= Ne7 (8...Na5 9.g4 Bg6 10.Ne5=) 9.0–0 Bf3 10.Bf3 Ng6 11.c4 Qc7 (better is 11...Be7!?+=) 12.Bf6+/– gf6 13.cd5 Bg7 (13...Bd6 14.Nc3+/–) 14.Nc3 0–0 (14...f5 15.Rc1+/–) 15.Rc1+– Rad8 (15...Ne5 16.d4 cd4 17.ed4 (17.Qd4?! f5 18.Qd2 Nf3 19.gf3 Qa5+=) 17...Nf3 18.Qf3+–) 16.Na4 b6 (16...Qe7 17.Rc5 b6 18.Rc3+–) 17.d4 Nh4 18.dc5 Nf3 (18...bc5 19.Rc5 Qe5 20.Qe2+–) 19.Qf3 Rd5 20.e4 (20.cb6 Qb8+–) 20...Rd4 21.cb6 Qd7 (21...Qe5 22.b7 Ra4 23.Rc8+–) 22.Nc5 Qb5 23.b7 Rc4 (23...Rb8 24.Qg3 e5 25.a4+–) 24.Rc4 Qc4 25.Nd7 f5 (25...Qb5 26.Nf8 Qb7 27.Nh7 Kh7+–) 26.Nf8 (26...Be5 27.Nd7+–) 1–0. orane – punnet, caissa.com, 2006.

6.bc5 Bc5

7.d4 Bb6 8.Nbd2 Ba5 9.Bb5 (9.Be2 Nc6=) 9...Nbd7 10.0–0 a6 (10...Qb6 11.c4+=) 11.Be2 Rc8 12.Rc1 b5 13.Nb3 Ne4 14.Na5 Qa5 15.c3 (better is 15.Re1+=) 15...Nc3?? (15...Nb6 16.Ne5 Be2 17.Qe2–/+) 16.Rc3?? (better is 16.Bc3 Rc3 17.Qd2 Ra3 18.Qa5 Ra5 19.Rc8 Ke7 20.Rh8+–) 16...Rc3+= 17.Qd2? Ra3–+ 18.Qc1? Ra4 19.Qc6 Bf3 20.gf3 Qb6 21.Qa8 Nb8 22.e4 0–0 23.ed5 Ra2 24.Rb1 ed5 25.Bd3 Rd8 26.Bc1 Qd4 27.Bh7 Kh7 28.Be3 Qf6 29.Qa7 Qg6 (29...Qg6 30.Bg5 Qb1 31.Kg2 Qg6–+) 0–1. Scharff,Georges (1680) – Gozzoli,Cyrille (1960), Majeur–chT, 2000. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 e6 5.a3 c5 6.bc5 Bc5)

7.d4 Bb6 8.Nbd2 Ne4 9.c4 Ba5 10.Be2?? (better is 10.Bc1+=) 10...Bf3–+ 11.Bf3 Nd2 (11...Bd2?! 12.Kf1 Ba5 13.Be4 de4 14.d5–+) 12.Ke2 Nc4 (worse is 12...Nf3 13.Kf3 dc4 14.Qa4 Nc6 15.Qc4 Qf6 16.Ke2–+) 13.Qb3 Nd7 14.Rhc1 Qb6 15.Qb6 Ndb6 16.Bc3 Kd7 17.Ba5 Na5 18.e4 (18.Rab1 Nac4 19.Ra1 Rac8–+) 18…Nb3 0–1. Kozlowska,Marzena (1940) – Lutostanska,Eliza (1800), Poland–chT2 Wysowa, 2007.

7.d4 Bd6 8.c4 dc4 9.Bc4 0–0 10.Nbd2 Nc6 11.Be2 Rc8 12.0–0 Bb8 13.h3 Bh5 14.Rc1 Qe7 15.Re1 Rfd8 16.Qb3 h6 17.Bb5 Nd5 (17...Bd6 18.e4 Bf4 19.Rc2=) 18.Bc6 bc6 19.e4 Nf4 20.e5 c5 21.Qc4? (21.Re4 Nd5=) 21...Bg6 (better is 21...Qb7 22.dc5 Rd2–/+) 22.Ne4? (better is 22.Rc3+=) 22...Qb7–+ 23.Qc2 (23.Nc5 Qb2 24.Rc3–+) 23...cd4 24.Nc5 Qf3 (24...Bc2?! 25.Nb7 Rd7 26.Nd6 Bd6 27.ed6–+) 25.Qg6 Ne2 (worse is 25...Ng6 26.gf3 Ne5 27.Red1 Nf3 28.Kg2 Nh4 29.Kf1–+) 26.Kf1 Nc1 27.Bc1 (27.gf3 fg6 28.Rc1–+) 27…Rc5 (27...Rc5 28.gf3 fg6–+) 0–1. Remis Diaz – Martin Manzano, Santa Olaya op, 1998. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 e6 4.e3 Nf6 5.a3 c5 6.bc5 Bc5)

7.d4 Bd6 8.c4 dc4 9.Bc4 0–0 10.Nbd2 Nbd7 11.Bd3 Qa5 12.0–0 Qh5 13.Qb3 Rab8 14.Rfc1 Nd5 15.h3 Bf3 16.Nf3 b6 17.e4 Nf4 18.e5 Be7 19.Rc7 Rbd8 20.Bb5 Qg6 21.Ne1 Nf6 22.Re7 Ne4 23.Ra7 f6 24.Rc1 fe5 25.Rcc7 Nh5 26.Nf3 Nd6 27.Bd7 Nf4 28.Be6! Kh8 29.Rg7 Qg7 30.Rg7 Kg7 31.d5 (31...Rf6 32.Be5 Ne6 33.Qb6+–) 1–0. Geiger,Walter (2065) – Wurm,Tamas, internet, 2004.

7.Be2 Nc6 8.0–0 0–0 9.h3 Bh5 10.d4 (10.Nc3 Qe7=+) 10...Bd6 (10...Bf3 11.Bf3 Qb6 12.Bc3=+) 11.Nbd2 Na5 (11...Qc7 12.c4=) 12.Bc3 Rc8 13.Bb4 Bg6 14.c3 (14.Ra2 Nc6=) 14...Nc6 (14...Ne4 15.Ne4 Be4 16.Nd2=+) 15.Qb3 (15.Bd6 Qd6 16.c4 b6=) 15...Nb4=+ 16.ab4 Bb8 (16...Qb6 17.c4 Ne4 18.c5 Bc5 19.bc5 Qb3 20.Nb3+–) 17.Rfc1= Ne4 (17...a6 18.c4=) 18.c4 Nd2 19.Nd2 dc4 20.Rc4 e5 (20...Qd6!? 21.Nf3 Be4 22.Rc8 Rc8=) 21.Rc8+= Qc8 22.d5 (22.de5 Rd8 23.Bg4 Qc7+=) 22...e4= 23.Nc4 h5 24.Rd1+= Rd8 25.h4 b6 26.Qa4 f6 27.Qc6 Qc6 28.dc6 Rd1 29.Bd1 b5 30.Nd2 Kf8 31.Nb3 Ke7 32.Be2 Bd6 33.Bb5 Kd8 34.Nd4 Bf7 35.Nf5 Bb4+= 36.Ng7 Kc7 37.Ba4 a5 38.Nf5 Bd5 39.Nd4 Bc5= 40.Nb5 Kc6 41.Nc3 Kd6 42.Nd5 Kd5 43.Bb3 Ke5=+ 44.Bf7 ½–½. Juswanto,Denny (2280) – Liu Wenzhe (2390), Asia–chT Kuala Lumpur, 1993.

7.h3 Bf3 8.Bb5 Nbd7 9.Qf3 0–0 =.

7.h3 Bf5 8.c4 (8.Nh4 Be4=) 8...Nc6 9.cd5 ed5 10.Bf6 Qf6 (worse is 10...gf6 11.Qb3+=) 11.Ra2 ½–½. Drazic,Sinisa (2400) – Lundin,Jan (2235), GM Round Robin Riblje Ostrvo, 2016.

7.h3 Bh5 =.

5.a3 Bd6

6.Bb5 c6 7.Be2 Bf3 8.Bf3 a5 =.

6.c4 c6 7.h3 Bf3 8.Qf3 Nbd7 9.cd5 cd5 10.Bb5 0–0 11.0–0 Be5 12.Nc3 Ne4 (12...a6 13.Bd3=) 13.d4+= (13.Ne4? de4 (13...Bb2?! 14.Nc5 Nc5 15.Ra2–/+) 14.Qe4 Bb2–+) 13...Nc3 14.Bc3 Bd6 15.e4 de4 16.Qe4 Nb6 (16...Rc8 17.Qb7 Rc3 18.Qd7 (18.Bd7? Rc7 19.Qe4 Qd7–+) 18...Qd7 19.Bd7=) 17.Bd3+= g6 18.Qb7 Nd5 19.Bd2 Qh4 20.Rad1 (20.Be3 Bf4 21.Rfe1 a5 22.ba5 Rab8=) 20...Qd4= 21.Qa6 Rac8?? (better is 21...Rfd8=) 22.Qd6+– Qd3 23.Bh6 Qe4 24.Rfe1 Qf5 25.Bf8 Rf8 26.Qc5 a6 27.a4 Qf4 28.Qd4 Qg5 29.h4 (White is in command) 29...Qd8 30.h5 Qg5 31.Re5 Qh6 32.hg6 hg6 33.Re4 g5 34.Rd3 Rc8 35.Rh3 Rc1 36.Kh2 Qf6 37.Qf6 Nf6 38.Rd4 e5 39.Rd8 Kg7 40.Rg3 Kg6?? 41.Rd6+– (41...g4 42.Rg4 Kh5 43.Rg7 (43.Rf6?! Kg4 44.f3 Kg5 45.Ra6 f5+–) 43...Ng4 44.Kg3+–) 1–0. Haugli,Petter (2250) – Agdestein,Espen (2265), NOR–ch Trondheim, 1983.

6.c4 c6 7.h3 Bh5 8.Be2 0–0 9.Nc3 Re8 10.cd5 cd5 11.Nb5 Bf8 12.Rc1 Nc6 13.Ne5 Be2 14.Qe2 (worse is 14.Ke2 Qb6 15.a4 Bb4–/+ (15...Nb4?! 16.Nc7=)) 14...a6 (better is 14...Qb6=) 15.Nc6+/– bc6 16.Bf6 Qf6 17.Nc7 Qb2 18.0–0 (18.Rc6 Rec8 19.0–0 Ra7+=) 18...Qa3 19.Ne8 Re8 20.Rc6 Bb4?? (better is 20...Ra8+–) 21.Ra6 Qb3 (21...Qb2 22.Qb5 Rc8 23.Qb7+–) 22.Qb5 Rc8 23.Rb6 Rc4 (23...h6+–) 24.Rb8 (24.Rb8 Bf8 25.Qb3+–) 1–0. Hauser,Christow – Blank,Yevgen, Hamburg League qual, 2005. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Bb2 e6 5.a3 Bd6)

6.d4 a5 7.Qd2 –/+.

6.d4 Nbd7 7.Be2 0–0 (7...a5 8.ba5 0–0 9.0–0=+) 8.Nbd2 a5 9.b5 c5 10.c4 (10.dc5 Nc5 11.0–0 Rc8=+) 10...Rc8 11.Rc1 (11.0–0 Qc7=+) 11...Ne4 (11...Qe7 12.dc5 Nc5 13.cd5 ed5 14.h3=+) 12.0–0= Nd2 (12...Nef6 13.Nb3=) 13.Nd2 (13.Qd2 dc4 14.Rc4 Nb6=) 13...Be2 (13...Qh4 14.h3 Be2 15.Qe2 cd4 16.ed4=+) 14.Qe2 cd4 15.ed4 b6 (15...dc4 16.Nc4 Bf4 17.Rc3=+) 16.Nf3 (16.cd5 Rc1 17.Rc1 ed5=) 16...Qe7 (16...Bf4 17.Rc2=+) 17.a4 (17.cd5 ed5 18.Qe7 Be7+=) 17...Bf4 (17...Rc4 18.Rc4 dc4 19.Rc1=+) 18.Rc2 Qb4 (18...dc4 19.Rc4 Rc4 20.Qc4=) 19.cd5 ed5 20.g3 (20.Bc1 Bc7=+) 20...Bh6 (20...Bd6 21.Rfc1 Rce8 22.Ne5–/+) 21.Ra1 (21.Bc1 Qa4 22.Rc8 Rc8 23.Bh6 gh6=+) 21...Rc2 22.Qc2 Re8 23.Ne5 Ne5 24.de5 Bg5 25.h4 Be7 26.Kg2 d4=+ 27.Qc6 Kf8 28.Ba3 Qc3 29.Be7 Re7 30.Rc1 Qc6 31.bc6+= Rc7 32.Kf3 d3 33.Ke3+– d2 34.Kd2 Ke7 35.Kd3 Ke6 36.Kd4 h5 37.f3 Rc8 38.g4 g6 39.gh5 gh5 40.Ke4 f6 41.ef6 Kf6 42.Kd5 Rd8 43.Kc4 Ke5 44.Kb5 Kf4 45.c7 Rc8 46.Kb6 Kf3 47.Kb7 (47…Rc7 48.Rc7+– (< 48.Kc7 Ke4+–); < 47.Ka5 Kg4 48.Rc4 Kf5+–) 1–0. Autengruber,Robert – Kopp,Eckard, Erlangen op, 1994.

6.Be2 Nc6 7.0–0 0–0 8.h3 Bh5 9.c4 (9.Nc3 Bf3 10.Bf3 a5=) 9...e5 (9...dc4!? 10.Bc4 a5=) 10.cd5 Ne7 (10...Nd5 11.b5 Nb8 12.Ne5 Be2 13.Qe2+=) 11.Nc3 h6 (11...a5 12.ba5 e4 13.Ng5 Be2 14.Qe2 Ra5 15.Nge4 Ned5 16.d3+/–) 12.e4+/– Ng6 (better is 12...c6!?+/–) 13.g4+– Nf4 14.gh5 Nh3 15.Kh1 Nh5 16.d4 f5 17.de5 Be5 18.d6 Bd6 19.e5 Be7 20.Ng1 (20.Qd5 Kh7 21.Qb7 N5f4+–) 20...Qd1 21.Rad1 (21.Rfd1?! Nf2 22.Kh2 Nd1 23.Rd1 Nf4=; 21.Nd1?! N3f4+–; 21.Bd1?! N3f4+–) 21...N5f4 22.Nh3 Nh3 23.f4 Bh4 (23...a5 24.Kg2 ab4 25.ab4 (25.Kh3?! bc3 26.Bc3 Ra3+=) 25...Bb4 26.Kh3+–) 24.Kg2 Nf2 25.Bc4 Kh8 26.Rf2 Bf2 27.Kf2 1–0. usingprogram (2005) – emilioo1, kurnik, 2013.

6.Be2 Nbd7 7.0–0 0–0 8.h3 Bh5 9.d3 c5 10.bc5 Nc5 11.Nc3 a6 12.Nd4 Be2 13.Qe2 b5 14.f4 Rc8 15.Nf3 Bc7 16.Rfe1 Ba5 17.Reb1 Qe7 18.Ne5 Qc7 19.Ra2 Ncd7 20.Nd7 Nd7 21.Nd1 Qc2 22.Qc2 Rc2 23.Kf1 Nc5 24.Nf2 Nb3 25.Rd1 Bd2 0–1. Enders,Peter – COMP, Kuppenheim Rapid, 2000.

6.Be2 Bf3 7.Bf3 0–0 8.d4 Re8 9.Nd2 e5 10.0–0 e4 11.Be2 a6 12.Rc1 b5 13.f3 ef3 14.Rf3 Ng4 15.Nf1 Qg5 The pressure on the backward pawn e3 grows 16.Rh3 Bh2 (16...Ne3 17.Ne3 Re3 18.Rh5–/+) 17.Nh2 (17.Rh2!? Nh2 18.Kh2=) 17...Ne3–/+ 18.Re3 Qe3 (18...Re3?! 19.Qd2=) 19.Kf1 Qf4 20.Nf3 Qh6 21.Bd3 Qh1 22.Ng1 Re6 23.Be2 Nd7 24.Bc3 Rae8 25.Bg4 Rf6 26.Bf3 Nb6 27.Qd3 (27.Bd2 Nc4 28.Rb1 Na3–+) 27...Nc4 (better is 27...g5 28.Kf2 g4–+) 28.Re1 Re1 29.Be1 Qh6 ½–½. Klein,Reinhard – Avramov,Laszlo, Bayern–chI Bank Hofmann 2nd, 1998. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 e6 5.a3 Bd6)

6.Be2 Bf3 7.Bf3 a5 8.b5 =+.

6.h3 Bf3 7.Qf3 =.

6.h3 Bh5 7.Be2 Nbd7 (7...a5 8.b5=+) 8.0–0 (8.g4 Bg6=) 8...0–0=+ 9.d3 c6 (9...c5 10.bc5 Nc5 11.Nbd2=+) 10.c4= Qe7 11.Nbd2 h6 12.Rc1 Rac8 13.Qb3 Nh7 14.Rfe1 Ng5 15.Ng5 Qg5 16.Bh5 Qh5 17.Nf3 dc4 18.dc4 (White creates threats along the open d–file) 18...Rfd8 19.Red1 Ne5 (19...Bc7 20.Rd2+=) 20.Ne5 (better is 20.Be5!? Be5 21.g4 Qh3 22.Ne5+/–) 20...Be5= 21.Rd8 Rd8 22.Be5 Qe5 23.Rd1 Qf6 24.Rd8 Qd8 25.Qc2 Qf6 26.Qd3 Qa1 27.Kh2 Qe5 28.Kg1 (28.f4 Qb2+=) 28...Qa1= 29.Kh2 Qb2 (29...Qe5 30.f4 Qc7 31.g4+=) 30.Kg1 Qc1 31.Kh2 Qe1 32.Qc2 Qf1 33.c5 Qe1 34.Qb2+= Qd1 35.Qd4 Qd4 36.ed4 f5 37.h4 g5 38.hg5 hg5 39.Kg3 Kf7 40.a4 a6 41.Kf3 Kg6 42.Kg3 Kf6 43.Kf3 e5= (Black is in command) 44.de5 Ke5–/+ 45.Ke3 Kd5–+ 46.Kd3 a5 47.Kc3 ab4 48.Kb4 Kd4 49.f3 f4 50.Kb3 Kc5 51.Kc3 Kd5 52.Kd3 b5 53.a5 Kc5 54.Kc3 Kd6 55.Kb4 Kc7 56.Kb3 c5 57.Kc3 Kb7 58.Kd3 b4 59.Kc4 Ka6 60.Kc5 b3 61.Kd4 b2 62.Ke5 b1Q (63.Kf6 Qb5–+) 0–1. Armas,Lena (1640) – Muller,Marion (1850), Aix–les–Bains FRA, Youth ch, 2006.

6.Be2 0–0

7.0–0 Nc6 8.c4 dc4 9.Bc4 Qe7 10.Be2 Rfd8 11.Nc3 Rd7 12.d4 Rad8 13.Qc2 a6 14.Ne4 Ne4 15.Qe4 Bf5 16.Qh4 Qh4 17.Nh4 Bg6 (17...Be4!?=) 18.Ng6+= hg6 19.b5 Nb8 20.ba6 Na6 21.Rfc1 Nb8 22.Bf3 c6 23.a4 Be7 24.Ba3 Ba3 25.Ra3 Na6 26.Rac3 Nb4 27.Rb1 Nd5 28.Bd5 ed5 29.Rcb3 Ra8 30.Rb7 Rb7 31.Rb7 Ra4 32.g3 Kf8 33.Kg2 Rc4 34.Kf3 Rc2 35.Rc7 ½–½. mr5reasons1 (1650) – wazzu85 (1715), gameknot.com, 2012.

7.0–0= Nbd7 8.Nc3 e5 =+.

7.0–0= Nbd7 8.d4 c6 9.Nbd2 Qc7 10.h3= Bf3 11.Bf3 e5 12.c4= ed4 13.Bd4 Bh2 14.Kh1 Be5 15.cd5 Bd4 16.ed4 Nd5 17.Bd5 cd5 18.Qf3 Nf6 19.Rac1+= Qd7 20.Nb3 b6 21.Rc2 Qa4= 22.Na1 a5 23.Rb1 ab4 24.Rb4 Qa3–/+ 25.Qa3 Ra3 26.Nb3 Re8 27.Rb6= Re1 28.Kh2 h5 29.Rb8 Kh7= 30.Rb2 h4 31.Rf8 Kg6 32.Rh8 Nh5 33.Rc8 Nf4=+ 34.Rc3 Rd1 35.Rf3 Ne6 36.Rd2? Rd2=+ 37.Nd2 Rf3 38.Nf3=+ Kf5 39.Nh4= Ke4 40.Kg1? Nd4–/+ 41.f4 Kf4–+ 42.Kf2 f5 43.g3 Ke5 44.Ng2 Ne6 45.h4 d4 46.h5 f4 47.g4 d3 (48.Ne1 Kd4 49.Nf3 Kc3–+) 0–1. Gerber,Vladimir – Nogin,Nikolai (2355), Independence Cup op–B, 2002.

7.0–0 Nbd7 8.h3 Bh5 9.d4 Re8 10.Nbd2 a5 11.b5 c5 12.c4 Rc8 13.Rc1 cd4 14.Nd4 Be2 15.Qe2 Qe7 16.cd5 Nd5 17.Ne4 Ba3=+ 18.Ba3 Qa3 19.Ra1 Qb4 20.Rfb1 Nc3 21.Nc3 Qc3 22.b6 Red8 23.Nb5 Qe5 24.f4 Qc5 25.Ra5 Nb6 26.Rba1 Nc4–+ 27.Rc1 Na5 28.Rc5 Rc5 29.Nd4 Nc6 30.Nf3 b5 31.Ng5 h6 32.Ne4 Rc4 33.Ng3 Nb4 34.Nh5 Nd5 35.Qb2 Nc3 36.Kh2 Ra8 37.Qd2 Rac8 38.Qd6 R4c5 39.Ng3 b4 40.f5 b3 41.fe6 b2 42.ef7 Kf7 43.Qd7 Kg8 44.Nf5 R8c7 45.Qe8 Kh7 46.Nh4 b1Q 47.e4 Qe4 (48.Qe4 Ne4–+; 47...Ne4?! 48.Qg6 Kg8 49.Qe8 Kh7 50.Qg6 Kh8 51.Qe8 Kh7=) 0–1. juanpacio (1745) – Knyt4k (1830), internet, 2007.

7.h3 Bh5 8.Nc3 Nbd7 9.Nb5 Be7 10.0–0 c6 11.Nbd4 Bd6 12.d3 Rc8 13.c4 Bb8 14.c5 Qc7 15.g3 a6 16.Qc2 Bg6 17.Nh4 e5 18.Ndf5 Rfe8 19.Nd6 e4 20.Ng6 hg6 21.Rad1 Ne5 22.de4 Ne4 23.Ne4 de4 24.Qe4 Qe7 25.Rfe1 Qe6 26.f4 Qh3 27.Qg2 (27.fe5?! Qg3 28.Qg2 Qe3 29.Qf2 Qg5 30.Kf1 Be5+–; 27.Be5?! Qg3 28.Qg2 Qe3 29.Qf2 Qa3+/–) 27...Qg2 28.Kg2 Nd7 (28...g5 29.Be5 Be5 30.fe5 Re5+–) 29.Rd7 Re3 30.Rb7 Rce8 31.Kf2 g5 32.Rb8! (32.Rb8 Re2 33.Re2 Rb8 34.fg5+–) 1–0. usingprogram (1995) – emilg24 (1720), 2012.

5.a3 Nbd7

6.Bb5 c6 7.Ba4 Bd6 8.d3 0–0 9.Nbd2 b5 10.Bb3 c5 11.c4 cb4 12.cb5 ba3 13.Ba3 Ba3 14.Ra3 Qb6 15.0–0 Qb5 16.Ba4 Qc5 17.Qa1 Rfc8 18.d4 Qe7 19.Bd7 Qd7 20.Ne5 Qe7 21.f3 Bf5 22.Nb3 h6 ½–½. Levine,Benjamin – Pirner,Robert Dr, IECG, 2001.

6.c4 a5 7.b5 =+.

6.c4 dc4 7.Bc4 Nb6 8.Be2 Be7 9.Nc3 0–0 10.d4 Nbd5 11.Qc2 Bf5 12.e4 Nc3 13.ef5 Ne2 14.Ke2 Nd5 15.Rhe1 Qd7 16.Kf1 ef5 17.Kg1 f6 18.Re2 Bd6 19.Rae1 Kh8 20.Qb3 Nf4 21.Rd2 Rae8 22.Red1 Nd5! 23.Ne5 Qe6 24.g3 c6 25.Nf3 f4 26.Kg2?? fg3 27.hg3 Qg4 28.Rh1?? Ne3!! 29.fe3 Qg3 30.Kf1 Qf3 31.Kg1 Re3 32.Qd1 Qg3 (32...Qg3 33.Kf1 Rf3 34.Qf3 Qf3 35.Rf2 Qh1 36.Ke2 Re8 37.Kd2 Qe1 38.Kc2 Qf2 39.Kb3 Re3 40.Ka2 Re2 41.Ka1 Qe1 42.Ka2 Qc3 43.d5 Qb2) 0–1. Lenda,Lukasz (1925) – Migon,Konrad, Wakacyjny turniej weekendowy w KKSz Poland, 2008.

6.c4 dc4 7.h3 Bh5 8.Bc4 c6 9.d4 Bd6 10.Nbd2 0–0 11.Bd3 a5 12.b5 cb5 13.Bb5 Nb6 Black intends a4 14.0–0 a4 15.g4 Bg6 16.Ne5 Be5 17.de5 Nfd5 18.Nf3 Qe7 19.Rc1 Rfd8 20.Qd4 Ra5 21.Be2 Nd7 22.Rfd1 Nc5 23.Nd2 b6 24.Bf1 Ra7 25.Ba1 Rad7 26.Bb5 Rb7 27.Bf1 f5 28.ef6 Nf6 29.Qb4 Rbd7 30.Bb5 Nd5 31.Qd4 Rc7 32.Bb2 Qh4 33.Nf3 Qh3–/+ 34.Ng5 Qh4 35.Nf3 Qe7 36.Qe5 Rf8 37.Nd4 Attacking the isolated pawn on e6 37...Qh4 Attacks the backward pawn on f2 38.f3 Be4 39.Be2 Rcf7 40.fe4 Ne3–+ 41.Qh2 Qh2 42.Kh2 Rf2 43.Kh1 R8f6 44.Nf5 Nd1 45.Bf6 Re2 46.Ne7 Kf7 47.Bh4 Ne3 48.Nc8 Ne4 49.Rc7 Kf8 50.Nd6 Nd6 51.Be7 Kg8 52.Bd6 Ng4 53.Rb7 h5 54.Rb6 Kf7 55.Rb7 Kf6 56.Ra7 e5 57.Ra4 g5 58.Kg1 Kf5 59.Ra8 h4 60.Rh8 Kf4 61.Kf1 Rc2 62.Be7 Nh2 63.Ke1 Nf3 64.Kd1 Rh2 65.Rf8 Ke4 66.Rg8 Rd2 67.Kc1 h3 1–0. Fournier,Frederic (2605) – Soyunacompu(C) (2505), Active, 2004.

6.c4 c5 7.bc5 Bc5 8.d4 Be7 9.Nbd2 0–0 10.Be2 Rc8 11.Rc1 Bf3 12.Bf3 Qb6 13.Qb3 Qb3 14.Nb3 Rc4 15.Rc4 dc4 16.Na5 Nd5 17.0–0 c3 18.Bd5 cb2 (18...ed5?! 19.Bc3 Ba3 20.Ra1+=) 19.Bb7 Ba3 20.Nc4 Rb8 21.Be4 Rb3 22.Nd2 Rb4 23.Bc2 Rb7 24.Be4?? (better is 24.Nc4=) 24...Rc7–+ 25.Bd3 Nb6 26.g3 a5 27.Rb1 a4 (27...Rc3!? 28.Bb5 Rc2 29.Nb3–+) 28.Kf1 Rc1 29.Kg2 Nd5 30.Nc4 Rb1 (30...Rc4!? 31.Bc4 Nc3 32.Bd3–+) 31.Bb1 Be7 32.Nb2 Nc3 (32...Nc3 33.Na4 Na4–+) 0–1. Herrmann,Edwin – Seidel,Dirk, NRW–chT U20 Germany, 1995. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 e6 5.a3 Nbd7)

6.d4 Bd6 7.c4 c6 8.c5 Bc7 9.Be2 0–0 10.Nbd2 Qb8 11.h3 Bh5 12.0–0 Bf3 13.Nf3 Re8 14.Qb3 e5 15.de5 Ne5 16.Nd2 Qd8 17.Rad1 Rc8 18.Qc2 Bb8 19.Nf3 Nf3= 20.Bf3 Qc7 21.g3 Ne4 22.Be4 Re4 23.Rd4 Rce8 24.Qc3 f5 25.Re4 fe4 26.Kg2 Rf8–/+ 27.Qd2 Rf3 28.Rd1 h5 29.h4 Qf7 30.Qe1 Qe6 31.Rd2 Qg4 32.Rc2 Bc7 33.Ba1 Bd8 (Black gets the initiative) 34.Qh1 g5 35.hg5 Bg5 36.Qh3 Qh3 37.Kh3 h4 38.Be5 hg3 39.Bg3 Kf7 40.Kg4 Bf6 41.Rd2 Ke6 42.Bb8 a6 43.Bg3 d4 44.Bf4 d3 45.Bd6 Rf5 46.Bf4 Bc3 47.Rd1 Rf8 48.Rf1 Rg8 49.Kh3 Bb2 (50.Bc7 Ba3–+) 0–1. Roldan,Antonio – Alvarez,Maximiliano, Them. Sokolsky, 1998.

6.d4 Bd6 7.Nbd2 c6 8.c4 0–0 9.h3 Bh5 10.Be2 Ne4 11.Ne4 de4 12.Ne5 Be2 13.Qe2 f5 14.f4 ef3 15.Nf3 (15.Qf3 Ne5 Double attack (15...Ne5 Decoy); 15.Nf3 Bg3 Decoy; 15.gf3 a5 Combination) 15...a5 16.c5 Bg3 17.Kd1 ab4 18.ab4 Ra1 19.Ba1 Qa8 20.Bc3 Nf6 21.Qc4 Qa4 22.Ke2? (better is 22.Kc1 Ne4 23.Nd2 Nc3 24.Qc3+=) 22...Qc2–+ 23.Nd2 Ne4 24.Qe6 Kh8 25.Qe7 Rb8 26.Kf3 Nc3 (26...Qc3?! 27.Ne4 fe4 28.Kg3 Qe3 29.Kg4–/+; 26...Nd2 27.Bd2 Bh2 28.Rh2 Qd2 29.Rh1+/–) 27.Kg3 Qd2 28.Qc7 (28.Rf1 Nd5 29.Qd6 Rg8–+) 28...Rf8 29.Qe7 f4 30.Kh2 Rg8 0–1. Sullivan,Neil (2090) – Ramaswamy,Kishor (2075), Quebec–ch qual, 2004. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 e6 5.a3 Nbd7)

6.Be2 (--> 4.e3 Nbd7 5.Be2 e6 6.a3).

6.h3 Bf3 7.gf3 g6 8.d3 Bg7 9.Nd2 0–0 10.Bg2 a5 11.b5 Ne8 12.Bg7 Kg7 13.f4 Nd6 14.c4 dc4 15.dc4 a4 16.0–0 Nc5 17.Kh2 Qf6 18.Qc2 e5 19.fe5 Qe5 20.Kg1 Rad8 21.Rad1 Rfe8 22.Nf3 Qf5 23.Qe2 Nde4 24.Rd8 Rd8 25.Nd4 Qg5 26.Qg4 Qe5 27.Rd1 Re8 28.Bf3 Nc3 29.Rf1 h5 30.Qg2 Nb3 31.Ne2 Ne2 32.Be2 Qb2 33.Bh5 Qa3 34.Rd1 Qc5 35.Be2 a3 36.Qb7 Re3 (36...Re3 37.Bf1 Rc3–+) 0–1. Groznyi,Ivan – Moskalenko,Eduard (1935), RN–2009–0–00207, 2009.

6.h3 Bf3 7.Qf3 a5 8.b5 Bd6 9.d4 c5 10.c4 Qc7 11.Nd2= cd4 12.ed4 Bf4 13.Rc1 Rc8 (13...Ne4 14.Ne4 de4 15.Qe4=) 14.Bd3 0–0 15.g3 Bd2 16.Kd2 dc4 (16...Qd8 17.Ke2 dc4 18.Bc4=) 17.Rc4= Qb8 (17...Qb6 18.Rhc1 Rc4 19.Bc4= (worse is 19.Rc4 Qb5 20.Ba1 Qb6+=)) 18.Rc8 Rc8 19.Rc1 Nb6 (19...Rc1 20.Bc1 Qc8 21.Qd1=) 20.Qd1 Rc1 21.Qc1 Qd8 22.Ke2 g6 23.Kf1 Na4 24.Ba1 Nd5 (24...Qd6 25.Kg2=) 25.Kg2 Qc7 (25...Qe7 26.Be2=) 26.Qc7+= Nc7 27.Bc2 Nb6 28.a4 Nbd5 29.Bb2 Kf8 30.Bc1 (30.Kf3 Nb4 31.Bb3 Ncd5+=) 30...Nc3 31.Kf1 (31.Bg5 N7d5+=) 31...N7d5 32.Ke1 (32.Bb2 f5+=) 32...Na2 (32...Nb6 33.Kd2 Ncd5 34.Bd1+=) 33.Bg5 b6 34.Bb3 Nac3 35.f3 Nb4 36.Kd2 Ncd5 37.Bh6 Ke7 38.Bc4 Kd7 39.Kc1 Ne7 40.g4 Ned5 41.Kb2 Kd6 42.Kb3 Ke7 43.Bd2 Kd7 44.h4 Kd6 45.Bh6 Ke7 46.Be2 f6 47.Bc4 Kf7 48.Bd2 f5 49.h5 (49.Bh6 f4+=) 49...Kf6 (49...gh5 50.gf5 h4 51.fe6 Ke6 52.Bf1+=) 50.hg6 hg6 51.g5 Ke7 52.f4 ½–½. Rooijen Van,Peter (1705) – Silva Filho,Alcindo (2130), SC–2011–0–00104, 2011.

6.h3 Bh5 7.c4 dc4 8.Bc4 Bd6 9.d3 0–0 10.Nbd2 Ne5 11.Qc1 Nf3 12.Nf3 Nd5 13.Qc2 c6 14.g4 Bg6 15.h4 f6 16.h5 Bf7 17.g5 fg5 18.h6 Bg6 19.Nh2 Bh5 20.Bg7 Rf7=+ 21.Nf1 Bg6 22.Rg1 b5 23.Bb3 a5 24.ba5 Ra5 25.Bd5 cd5–/+ 26.Qb3 Rfa7 27.Bb2 b4 28.a4 Qe8 29.Rg5 Qc8 30.Ng3 ½–½. Perlitz,Heiko – Schulz,Hans_Juergen, TT–11 ETC, 2004.

6.h3 Bh5 7.c4 Be7 8.cd5 ed5 9.Be2 0–0 10.0–0 Re8 11.d3 b6 (better is 11...Bd6=) 12.g4+/– Bg6 13.g5 Nh5 14.Nd4 Bd6 15.h4 (15.Bh5 Qg5 16.Bg4 Qe5+=) 15...Ne5 16.Nb5 c6 17.Nd6 Qd6 18.Bh5 Bh5 19.Qh5 Nd3 20.Bc1 Qd7 21.Ra2 (21.Nc3 Qh3 22.Ra2 Ne5–/+) 21...Re4 22.Rd1?? (22.Nd2!? Rg4 23.Kh2+=) 22...Rg4?? (better is 22...Qh3 23.Rd3 Rg4 24.Qg4 Qg4 25.Kf1 Qc4–+ (25...Qh4?! 26.Rc2=)) 23.Kh2= g6 24.Qh6 Qf5 25.f4 Re8 26.Nc3 Nc1 27.Rc1?? (27.Nd5 cd5 28.Rc1 Re3 29.Rf2 Rgg3 30.Qh7 Kh7 31.Kh1 Qe4 32.Kh2 Rh3 33.Kg1 Rh1) 27…Re3 0–1. Pcmvr – Michael_Schenk, playchess.de, 2004.

6.c4 c6

7.c5 Be7 8.d4 Ne4 9.Bd3 0–0 10.Qc2 f5 11.Ne5 Ne5 12.de5 Bh4 13.0–0 Qg5 14.f4 Qh5 15.Bd4 Qg6 16.Nd2 a5 17.b5 Bh3 18.Nf3 Be7 19.bc6 bc6+= 20.Rfc1 Bg4 21.Nd2= Qe8 22.Rab1 Qd7 23.Rb6 Bd8 24.Rb2 Bc7 25.Rcb1 Rfb8 26.Rb8 Rb8 27.Rb8 Bb8 28.Be4 fe4 29.Nb3 Qa7 30.Bb2 Qa6 31.Nd4 h5 32.h3 Bf5 33.a4 Kf7 34.Nf5 ef5 35.Qd1 g6 36.e6 Ke6= 37.Qd4 (37.Qd4 Kd7 38.Qg7 Kc8 39.Qg6+–) 1–0. Taulien,Hans_Juergen (2350) – Schulz,Hans_Juergen (2305), remoteschach.de, 2006.

7.d4 Bd6 8.Nbd2 Ne4 9.Ne4 de4 10.h3 Bh5 (< 10...ef3 11.hg4 fg2 12.Bg2+=) 11.g4 ef3 12.gh5 Qf6 13.h4 e5 14.c5 Bc7 15.d5 Nc5 16.Rc1 Nd7 17.dc6 bc6 18.Qa4 (18...Ke7 19.Qc6 Qc6 20.Rc6+=; 18.Rh3 Rc8+=) +=. Woelfelschneider,Peter – Schulz, T16–02.76, 2002.

7.Be2 Bd6 8.d3 a6 (8...Bf3 9.Bf3 dc4 10.dc4+=) 9.Nbd2= 0–0 10.Rc1 (10.c5 Bc7=) 10...Qe7 11.0–0 a5 12.c5 Bc7 13.d4 ab4 14.ab4 Ne4 15.Ne4 de4 16.Nd2 Be2 17.Qe2 f5 18.b5 Ra2 19.Bc3 Nf6 20.Ra1 Ra1 21.Ra1 Nd5 22.Bb2 Nb4 23.Bc3 (23.b6 Bb8=) 23...Nd5 24.Nb1 (better is 24.Bb2!?=) 24...cb5–/+ 25.Qb5 (25.Ba5 f4 26.Bc7 Qc7–/+ (26...Nc7?! 27.Nd2=)) 25...f4 26.Be1? (26.ef4 Nf4 27.g3–+ (27.Qb7 Qg5 28.Kf1 Qg2 29.Ke1 Qh1 30.Kd2 e3 31.Kc2 Qb7 32.Na3 Qe4 33.Kb3 Rb8 34.Nb5 Rb5 35.Ka4 Rb8 36.Bb4 Qc2 37.Ka3 Nd3 38.fe3 Rb4 39.c6 Ra4)) 26...fe3–+ 27.Qe2 Qf6 28.Ra4 (28.Na3 Qd4 29.Nc2–+) 28...ef2 29.Bf2 e3! 30.Be1 (30.Be3 Ne3) 30...Nf4 31.Qf3 Nh3 32.Kh1 Qg6 33.Ra8 Nf2! 34.Bf2 Qb1 35.Bg1 Ra8 36.Qe3 Qf5 37.Qe2 (37.Qb3 Ra1 38.Qb7 Bh2 39.Qc8 Kf7 40.Qd7 Kg6 41.Qb5 Bg1 42.Qe8 Kh6 43.c6 Bd4 44.Kh2 Be5 45.g3 Qf2 46.Kh3 Qg3) 37...Qd5 (37...Ra1 38.Qb5 h6 39.Qe2–+) 38.Qg4 Bd8 (38...Ra2!? 39.h4–+) 39.h3 Bf6 40.Qf4 Rd8 41.Qg4 Bd4 0–1. Shoiyzhininaev,Bato – Tugarin,Anton, Ulan–Ude RUS, Buryatia Ch, 2013.

7.Be2 Be7 8.Nc3 dc4 9.Bc4 Ne5 10.Be2 (10.Ne5 Bd1 Pinning (10...Bd1 Deflection)) 10...Nd3 11.Bd3 Qd3 12.Ne5 Bd1 13.Nd3 Bb3 14.Nc5 Bc5 15.bc5 e5 16.Ne2 Nd7 17.d4 0–0–0 18.Rc1 Rhe8 19.0–0 g6 20.f3 f5 Black prepares the advance e4 21.Rfe1 Bf7 22.Kf2 h6 23.h4 e4 24.Ng3 Nf6 25.h5 Nh5 26.Nh5 gh5 27.Rh1 Re6 28.Rh4 Rg8 29.fe4 Reg6 30.Rg1 fe4 31.Rf4 Bd5 32.g3 Kd7 33.Bc3 Rg4 34.Rg4 hg4 35.Rb1 Rf8 36.Kg2 Kc8 37.a4 Rf3 38.Bd2 Bc4 39.a5 a6 40.Rc1 Bb5 41.Rh1 Kd7 42.Bc1 h5 43.Bd2 Bd3 44.Bc1 Be2 45.Re1 Bb5 46.Bd2 Ke6 47.Rh1 Kd5 48.Rh5 Kc4 49.Rg5 (better is 49.Bc1!?–/+) 49...Kd3–+ 50.Bc1 Kc2 51.Rg4 Bf1 (51...Kc1?! 52.Re4 Be2 53.Re7–/+) 52.Kh2 Kc1 53.Re4 Kd2 0–1. Nikolaidis,Ioannis (2440) – Hertneck,Gerald (2555), Katerini GP, 1993. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nf6 4.e3 e6 5.a3 Nbd7 6.c4 c6)

7.h3 Bh5 8.d3 Bd6 =.

7.h3 Bh5 8.Be2 Bd6 9.d3 Qe7 10.Nc3 Rd8 11.b5 dc4=+ 12.bc6 Nc5 13.d4 Nd3 14.Bd3 cd3 15.Qd3 bc6 16.Ne4 Ne4=+ 17.Qe4 Qb7 18.Qc2 0–0 19.0–0 Rb8 20.Bc3 Qb3 21.Qb3= Rb3 22.Bb4 Bb4 23.ab4 Bf3 24.gf3 Ra8 25.Rfc1 Rb4= 26.Rc6 Rb7 27.Rca6 g6 28.f4 Kg7 29.Kg2 Kf6 30.Kf3 Ke7= 31.R1a5 Rd7 32.Ke4 Rb7 33.h4 h5 34.Kf3 Rd7 35.Ra4 Rb7 36.e4 Rb3 37.Kg2 Rb7 38.Kg3 Rb3 39.f3+= Rb2 40.f5 gf5 41.ef5 Kf6 42.fe6+/– fe6 43.d5 Rg8 44.Kf4 Rb6 45.de6 Ke6 46.Ra7 Rf8 47.Ke4 Kf6 48.R7a6 Rfb8 49.Kf4 Kg6 50.Kg3 Kh6 51.f4 Kg6 52.Kf3 Kf6 53.R4a5 Ra6 54.Ra6 Kg7 55.Rd6 Rb3+= 56.Ke4 Rh3 57.Ke5 Rh4 58.Rd7 Kg8 59.f5 Rh1 60.Kf6 Rf1 61.Rd8 Kh7+= 62.Rd5 Kg8 63.Re5 Kf8 64.Rb5 Kg8 65.Rb2 h4+= 66.Rg2 Kf8 67.Rg4 Ra1? 68.Rh4+– Ra6 69.Kg5 Kg7 70.Rb4 Ra7 71.Rb6 Kf7 72.Rh6 Ra5 73.Rh7 Kg8 74.Re7 Kf8 75.Rb7 Ra6 76.Rb5 Kf7 77.Rb8 Kg7 78.Rb7?? Kg8?? 79.Kf4 Ra5 80.Rb6 Kf7+/– 81.Kg5 Ra7+– 82.Rh6 Ra5 83.Rh7?? Kg8 84.Rd7 Kf8 85.Rd6 Kf7 86.Rb6 Kg7?? 87.Re6 Ra7 88.Rc6 Rb7 89.Ra6 Kf7 90.Rh6 Rb5 91.Ra6?? Rb7= ½–½. Ivanets,Vladimir (2185) – Viner,Phillip (2290), 15sen.WMH, 2005.

7.h3 Bh5 8.Be2 Bf3 9.gf3 dc4 10.Bc4 =+.

5.a3 Be7

6.c4 a5 7.cd5 ed5 8.h3 Bf3 9.Qf3 ab4 10.ab4 Ra1 11.Ba1 Bb4 12.Bf6 Qf6 13.Qd5 =+.

6.c4 dc4 7.Bc4 0–0 8.0–0 Nbd7 9.Qc2 Bf3 10.gf3 c6 11.Kh1 Qc7 12.Be2 Nd5 13.Nc3 Nc3 14.Bc3 Bf6 15.Rac1 Bc3 16.Qc3 Rfc8 17.Rg1 g6 18.h4 (18.d4 Nb6+=) 18...Qe5 19.Qe5 Ne5 20.f4 Nd7 21.h5 Nf6 22.hg6 hg6 23.Bf3 Rc7 24.b5 Rac8 25.bc6 bc6 26.Rc5 Nd7 27.Rc3 c5 28.Rgc1 Kf8 29.Be2 Ke7 30.d4 Kd6 31.dc5 Nc5 32.Kg2 Rb8 33.Kf3 Rb2 34.Rd1 Ke7 35.Rdc1 Kd6 36.Rd1 Kc6= 37.a4 a5 38.Bb5 Kb7 39.Rdc1 Rf2 40.Kf2 Ne4 41.Kf3 Nc3 42.Be8 Kb6 43.Rc2 Re7 44.Bf7= Rf7 45.Rc3 e5 46.Kg4 ef4 47.ef4 Rf5 48.Rc8 Rd5 49.Rg8 Rd4 50.Rg6 Kc7 51.Re6 Ra4 52.Kg5 Ra1 53.f5 Kd7 54.Re2 a4 55.f6 a3 56.f7 Rg1? 57.Kf6+– Rf1 58.Kg7 Rg1 59.Kf8 Rf1? 60.Re7 Kd8? 61.Ra7 Rf3 62.Ra6 Kd7+/– 63.Kg7 Rg3= 64.Kf6 Rf3 65.Kg7 Rg3 66.Kf8 Rf3 67.Kg7 (Better is 67.Ra8!? Rg3 68.Ra7 Kc6 69.Ra6 Kb7 70.Ra4+/–) ½–½. Hall,PJ – Donaldson,Bruce, NZL–ch Major op, 1999.

6.d4 0–0 7.Nbd2 Nc6 8.c4 dc4 9.Bc4 a6 10.0–0 Nd7 11.e4 Nf6 12.d5 (better is 12.Qc2!?+=) 12...ed5+= 13.ed5 Na7 (13...Nd5 14.Qc2+=) 14.Qb3 (14.Re1 b5 15.Bb3 Re8+=) 14...c6 (14...b5!? 15.Bd3 Qd5=) 15.dc6+= bc6 (better is 15...Nc6!? 16.h3 Bf5=) 16.Rad1 Qc7 17.h3 Bh5 18.Ba6 Bg6 (18...Nb5 19.Bb5 cb5 20.Qd3+/–) 19.Be5 Qb6 20.Bc4 Nd5 21.Bd5 cd5 22.Qd5 Rad8 23.Qb3 Nc6 24.Nc4 Qb7 25.Bd6 Bd6 26.Nd6 Qe7 27.Rfe1 Qf6 (27...Qc7 28.Qd5+–) 28.Nb7 (better is 28.Qd5!? Bc2 29.Qc6 Bd1 30.Rd1 Ra8+–) 28...Rd1 29.Rd1 Ne5 30.Ne5 Qe5 31.a4 Kh8 32.a5 Qb5 33.Nd6 Qa6 (33...Qe2 34.b5+–) 34.Qc4 Qc4 (34...Qa7 35.Qc5 Qd7 36.b5+–) 35.Nc4 h6 36.a6 Ra8 37.b5 f6 (37...Be4 38.f3 Bf5 39.b6+–) 38.Nb6 Ra7 39.Rd7 (39.Rd7 Bd3 40.Rd3+–) 1–0. carlog (1830) – macounet, gameknot.com, 2010.

6.h3 Bf3 7.Qf3 Nbd7 =.

6.c4 c6

7.h3 Bh5 =.

7.Nc3 0–0

8.h3 Bh5

9.cd5 cd5 10.Be2 a5 11.b5 =.

9.cd5 cd5 10.Be2 Nc6 11.0–0 a6 12.d3 Re8 (12...Qd6 13.b5 Bf3 14.Bf3=) 13.Rc1 h6 14.Na4 Rc8 15.Nc5 (15.Ne5 Ne5 16.Rc8 Qc8 17.Bh5 Nc6=) 15...Bc5 (15...Qc7 16.Nd4 Be2 17.Qe2 Nd4 18.Bd4=) 16.bc5 Nd7 17.Qb3 Qc7 (17...b5 18.cb6 Qb6 19.Qb6 Nb6 20.g4+=) 18.Rc2 b6 (18...Na5!? 19.Qc3 f6+=) 19.cb6+/– Qb6 20.Qb6 Nb6 21.Rfc1 Ne7 22.g4 Bg6 23.Ne5 Rc2 24.Rc2 Rc8 (24...Bh7 25.Nc6+/–) 25.Rc8 Nbc8 (25...Nec8 26.Ng6 fg6 27.h4+/–) 26.Bc3 Na7 27.d4 Nb5 28.Bb4 Nc8 (28...f6 29.a4 Na7 30.Be7 fe5 31.Bc5+–) 29.a4 Nba7 (29...Nc7 30.Ba5 Ne8 31.Ng6 fg6 32.Ba6+–) 30.Ng6 fg6 31.Ba6 h5 (31...Kf7 32.Bc5+–) 32.a5 Kf7 33.Bc5 Ke8 34.Bd3 hg4 35.Bg6 Kd7 36.hg4 Nc6 (36...Nb5 37.Bf8+–) 37.a6 1–0. marekt – jjf, ChessWorld.net, 2004.

9.cd5 cd5 10.Be2 Nbd7 11.0–0 a6 (11...a5 12.b5=) 12.Rc1 Nb6 (12...Rc8 13.d3=) 13.d3 Rc8 14.Qd2 Re8 (14...Qd6 15.Rc2=) 15.Rc2 (15.g4 Bg6=) 15...Nfd7 (15...Qd6 16.Rfc1=) 16.Nd4 (16.Rfc1 Bd6=) 16...Be2 17.Nde2 (17.Qe2 Bf6=) 17...Bf6 (17...Bd6 18.Nd4=) 18.Rfc1 Bc3 19.Rc3 (19.Bc3 e5=) 19...Rc3 20.Qc3 (20.Nc3 e5=) 20...f6 (20...e5!?=) 21.Qc7+= Qc7 (21...Qb8 22.Qb8 Rb8 23.Rc7+=) 22.Rc7+/– Rb8 23.Nf4 Kf7? (Better is 23...Nf8+/–) 24.Bd4+– Kg8 25.Ne6 1–0. Scholz,Christoph – Axmann,Steffen, Baden–ch U15, 1996.

9.cd5 ed5 10.Be2 =.

9.g4 Bg6 =.

6.Be2 Nbd7

7.d3 0–0 8.Nbd2 a5 9.b5 c6 10.a4 Qc7 11.h3 Bh5 12.g4 Bg6 13.Nh4 Rac8 14.Rc1 Nc5 15.Ng6 fg6 16.c4 Nfd7 17.d4 17...Rf2!–+ 18.Kf2?? Bh4 19.Kf1 Qg3 (20.Qe1 A) 20...Qe1? 21.Re1 Be1 22.Ke1 (22.dc5? Bd2 23.Bd4 Bb4–+) 22...Na4 23.bc6 bc6 24.Ba1+–; B) 20...Rf8 21.Bf3 Rf3 (21...Qe1?! 22.Re1 Be1 23.Ke1 Nd3 24.Ke2 Nb2 25.Rc1=+) 22.Ke2 Qg2 (22...Qe1?! 23.Rce1 Rf2 24.Kd1 Na4 25.Ba1–/+) 23.Kd1 Be1 24.Re1 Na4–+) 0–1. Gurgenidze,B – Jobava,B, Tbilisi, 2000.

7.0–0 0–0

8.c4 c6

9.Nc3 a5 10.b5 c5 11.d3= dc4 12.dc4 Nb6 13.Qc2 Bf5 14.e4 Bg4 15.Ne5 Be2 16.Ne2 Qc7 17.h3 Bd6 18.Ng4 Ng4=+ 19.hg4 Be5 20.Be5 Qe5 21.f4 Qc7 22.e5 Rad8 23.Qe4 Rd2=+ 24.Rae1 Qd7 25.f5 Qd3 26.Qd3 Rd3 27.fe6 Nc4 28.Nf4 Re3 29.e7 Re8+/– 30.Re3 Ne3 31.Re1 Nc2+– 32.Rc1 Nd4 33.Rc5 f6 34.e6 g5 35.Rd5 Re7 36.Rd8 Kg7 37.Nh5 Kg6 38.Rd4 Re6 39.Ng3 Re1 40.Kf2 Ra1 41.Rd7 Ra2 42.Kg1 h5 43.gh5 Kh6 44.Rb7 Ra3 45.Kh2 Rb3 46.b6 a4 47.Ra7 Rb6 48.Ra4 f5 49.Nf5 Kh5 50.Rd4 Rb2 51.Ng3 Kg6 52.Rd6 Kf7 53.Ne4 Rb5 54.Kg3 Re5 55.Kf3 Kg7 56.Ng3 Ra5 57.Kg4 Ra2 58.Nf5 Kh7 59.g3 Ra8 60.Kh5 Ra1 61.Rd7 Kh8 62.Kg5 Ra8 63.Nh4 Kg8 64.Kh6 Ra5 65.Rg7 (65...Kf8 66.g4+–; 65.g4 Kf8 66.g5 Ke8+–) 1–0. Ivanets,Vladimir (2280) – Loshkarev,Dmitri (2200), Moscow, 2006.

9.Nc3 a5 10.b5 dc4=+ 11.bc6 bc6 12.Nd4 Be2–/+ 13.Qe2 Qb6 14.Na4= Qa6 15.Rfc1 Nd5 16.Qc4 Qc4 17.Rc4 c5 18.Nf3 Rab8 19.Kf1 Rb5 20.e4 N5b6 21.Nb6 Nb6 22.Rc2 Na4 23.Be5 f6 24.Bc3 Rfb8=+ 25.Ke2 e5 26.d3 c4 27.dc4+= Nc3 28.Kd3?? Rb1–+ 29.Rb1 Nb1 30.c5 Na3 31.c6 Nc2 (32.Kc2 a4–+) 0–1. Waechler,F – Stillger,B, Germany, 1994.

9.Nc3 a5 10.cd5 ab4 11.ab4 Ra1 12.Qa1 cd5 =.

9.Nc3 dc4 10.Bc4 Bf3 11.gf3 =+.

9.d4 Ne4 10.Nbd2 f5 11.Ne4 fe4 12.Nd2 Be2 13.Qe2 Bd6 14.f3 Qh4 15.f4 Rf6 16.Rf2 h5 17.g3 Rg6 18.Rg2 Qh3 19.Nf1 Kf7 20.Bc3 Rh8 21.Be1 Nf6 22.cd5 ed5=+ 23.b5 (White fights for the initiative) 23...h4 24.bc6= hg3 25.Bg3+/– Nh5? 26.Qb5 Ng3 27.Qd5+– Ke7 28.hg3 bc6 29.Qe4 Re6 30.Qc6 Qh1 31.Kf2 Kf6 32.d5 Rb8 33.Qc3 Re5 34.Nd2 Qh5 35.Ne4 Kg6 36.Nd6 Rd5 37.Nc4 Rc8 38.e4 Rc4 39.Qc4 Rd2 40.Kg1 (40...Rd1 41.Rd1 Qd1 42.Kf2 Qd2 43.Kf3 Qd1 44.Qe2 Qb3 45.Qe3 Qd1 46.Re2 Qh1 47.Kf2 Qh2 48.Ke1 Qh1 49.Kd2+–) 1–0. Saadi – Varasdy, Rio Hondo, 1958.

9.cd5 cd5 10.Nc3 a5 =.

5.b5 a6

6.h3 Bf3 7.Qf3 Bd6 =.

6.a4 ab5

7.ab5 Nbd7 8.Be2 Be7 9.0–0 0–0 10.h3 Bh5 11.c4 Ra1 12.Ba1 c6 13.d4 dc4 14.bc6 bc6 15.Nbd2 c5 16.Nc4 cd4 17.Qd4 Nc5 ½–½. Votava,J (2520) – Oparin,G (2480), Pardubice CZE, 2012. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 e6 5.b5 a6)

7.ab5 Ra1

8.Ba1 Bd6 9.Be2 0–0 10.d3 Bb4 11.c3 Bd6 12.Nbd2 Nbd7 13.0–0 c6 14.bc6 bc6 15.c4 Qa5 16.Qc2 Rb8 17.h3 Bh5 18.Rc1 e5 19.cd5 cd5 20.Qd1 Qa7 (20...Qd8 21.Rc6 Qe7 22.Qc2+=) 21.Nf1 Ba3 (21...Qa3 22.Rc6=) 22.Rc2 e4 (22...Bf3 23.Bf3 Qb6 24.Ng3=) 23.de4 de4 24.Nd4 (24.Ne5 Be2 25.Qe2 Qa4=) 24...Be2 25.Ne2 Qb6 26.Nfg3 g6 27.Bd4 Bc5 (27...Qe6!?=) ½–½. Pagni,Carlo Alberto – Buss,Michael, corr th, 1990.

8.Ba1 Bd6 9.Be2 0–0 10.d3 Bb4 11.c3 Bd6 12.Nbd2 Nbd7 13.0–0 c6 14.bc6 bc6 15.c4 Qa5 16.Qc2 Rb8 17.h3 Bh5 18.Bc3 Qc7 19.Rc1 e5 20.cd5 cd5 21.Qd1 Qa7 22.Nf1 Ba3 23.Rc2 e4 24.de4 de4 25.Nd4 Be2 26.Ne2 Qb6 27.Nfg3 g6 28.Bd4 Bc5 (28...Qb1!? 29.Qb1 Rb1 30.Kh2 Bd6+=) ½–½. Pagni,Carlo Alberto – Buss,Michael, corr ICCF TT–4–90, 1992.

8.Ba1 Nbd7 9.c4 Nc5 10.cd5 Qd5 (10...ed5 11.h3 Bf5 12.Bf6 Qf6 13.Nc3+=) 11.Bf6= gf6 12.Be2 (12.Nc3 Bf3 13.Qf3 Qf3 14.gf3 Rg8=) 12...Nd3 13.Kf1 Bf3 (13...Qb5? 14.Qc2+–) 14.Bf3 Qb5 15.Nc3 ½–½. Melich,J (2120) – Todorov,O (2300), 9th Georgiev–Kesarovski Mem, 2010.

8.Ba1 Nbd7 9.c4 Bd6 10.cd5 ed5 11.Be2 0–0 12.0–0 Re8 (12...Qe7 13.Bd4=+) ½–½. Melich,Jindrich (2145) – Vybiral,Zdenek (2245), CZE–chT2a, 2001.

8.Ba1 Nbd7 9.Be2 Bd6 10.d4 0–0 11.0–0 Ne4 12.Nbd2 Nd2 13.Nd2 Be2 14.Qe2 Nb6 15.c4 dc4 16.Nc4 Nc4 17.Qc4 Qh4 18.g3 Qe4 19.Qc3 Qd5 20.Qd3 f5 21.Rb1 g5 22.Qb3 Ra8 23.Bc3 Qb3 24.Rb3 Kf7 25.h3 h5 26.Bb4 Ke7 27.Bc5 White plans b6 g4 28.b6 c6 29.h4 Bc5 30.dc5 Ra5 31.Rc3 e5 32.Kf1 Ke6 33.Ke2 Kd5 34.Rd3 Kc5 35.Rd7 Kb6 36.Rh7 e4 37.Rh5 Rd5 38.Rh8 Kc5 39.h5 b5 40.h6 b4 41.h7? Rd7–+ 42.Rf8 Rh7 43.Rf5 Kc4 44.Re5 c5 45.Re4 Kc3 46.Re5 c4 47.Rb5 b3 48.e4 b2 49.e5 Kc2 (49...Kc2 50.Ke3 c3–+) 0–1. De Wild Propitus,Mark – Hjort,Helge (1965), London ENG, 3rd Classic Open, 2011.

8.Ba1 Nbd7 9.Be2 Be7 =.

5.b5 c5

6.c4 Nbd7 7.h3 Bf3 8.Qf3 Bd6 9.cd5 ed5 10.Nc3 Be5 11.Bd3 0–0 12.0–0 c4 13.Bc2 Nc5 14.Qf5 Re8 15.f4 g6 16.Qg5 Bc3 17.Bc3 Nfe4 18.Qd8 Rad8 19.Bd4 Ne6 (worse is 19...Nd2 20.Bc5 Nf1 21.Kf1+=) 20.Ba7 Nd2 21.Rf2 c3 22.Bd3 (22.f5!? gf5 23.Bf5–/+) 22...Ra8–+ 23.Bb6 Rec8 24.a4 Nc4 (24...Nc5!? 25.Bc5 Rc5+=) 25.Bc4+= Rc4 (worse is 25...dc4 26.Rc2+=) 26.a5 Nc7 27.Bc7 Rc7 28.Rc2 Rc5 29.Ra3 (29.b6!?=) 29...Rb5–/+ 30.Rcc3 Raa5 31.Rc8 Kg7 32.Ra5 Ra5 33.Rb8 Rb5 34.Kf2 Rb2 35.Kf3 Kf6 36.g4 h6 37.Rh8 b5 38.h4 b4 39.Rb8 b3 40.Rb6 Ke7 41.e4 d4 42.e5 Rb1 0–1. Bove Quist,Viggo (2290) – Pedersen,Nicolai Vesterbaek (2350), DEN–chT, 1999. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 e6)

6.h3 Bh5 7.Be2 Be7 8.c4 0–0 9.0–0 Nbd7 10.d4 Rc8 11.g4 Bg6 12.Nbd2 cd4 13.Nd4 Nb6 14.Qb3 dc4 15.Nc4 Ne4 16.Nb6 Qb6 17.Rfc1 Bh4 18.f3 Ng5 19.Kg2 Qd6 20.f4 Be4 21.Kh2 Bd5 22.Qa3 Qb8 23.Rc3 Ne4 24.Rc8 Rc8 25.Nf3 Bf6 26.Bf6 gf6 27.Rc1 ½–½. Zylla – Meryk, 1994.

5.b5 c6

6.a4 c5 7.h3 Bf3 8.Qf3= Bd6 9.c4 0–0 10.Bd3 Nbd7=+ 11.0–0 Be5 12.Bc3 Bc3 13.Nc3 Ne5 14.Qe2 Nd3 15.Qd3 d4 16.ed4 Qd4=+ 17.Qd4 cd4 18.Na2 Rac8 19.d3 Nd7 20.Nb4 Rfe8 21.a5 e5 22.f3 f5 23.a6 b6 24.Nc6 Rc7 25.Rfe1 Kf7 26.Re2 Ke6 27.Nd4 Kf6 28.Nc6 Nc5? 29.Nb4?? Rce7? 30.Nd5+– Kg5 31.Ne7 Re7 32.d4 Nb3 33.Rd1 Kf6 34.de5 Re5 35.Re5 Ke5 36.Rd7 Kf6 37.Ra7 Nd2 38.Rc7 h6 39.a7 Kg5 40.a8Q g6 41.Qd8 Kh5 42.g4 (42...fg4 43.hg4#) 1–0. Rodriguez,Patrick (1650) – Perodeau,Guillaume, St Quentin op 4th, 2001.

6.a4 Bd6 7.Be2 =+.

6.c4 dc4 7.Bc4 cb5 8.Bb5 Nbd7 9.Qa4 Be7 (better is 9...Bf3 10.gf3 a6 11.Bd7 Nd7–/+) 10.Ne5+/– Bh5? (better is 10...Bf5!? 11.g4 Bb1 12.Rb1 a6 13.Bd7 Nd7 14.Nd7 Qd7 15.Qd7 Kd7 16.Bg7 Rhb8+/–) 11.g4+– Bg6 12.g5 0–0 13.gf6 (better is 13.Bd7 Bc2 14.Qd4+– (14.gf6?! Ba4 15.fe7 Qe7+–)) 13...Bf6? (13...Nf6 14.Ng6 fg6+–) 14.Bd7 (worse is 14.Nd7 Bb2 15.Nf8 Qf8–+) 14...Be5 15.Be5 a6 (15...Qg5 16.Bg3+–) 16.Rg1 (better is 16.Bc3!? Kh8+–) 16...b5 (16...Qe7 17.Bc7+–) 17.Qd4 (17.Qd4 Qe7 18.Bc6+–) 1–0. cristero (2525) – israelflavio (2240), net–chess.com, 2013.

6.c4 dc4 7.Bc4 Be7 8.0–0 0–0 9.d4 cb5 10.Bb5 Qb6 11.Qb3 Bf3 12.gf3 Nc6 13.Bc4 Qd8 14.Bd3 Qd5 15.Qd1 (15.Qd5 Nd5 16.Nc3 Ncb4 17.Nd5 ed5=) 15...Bd6 16.Nc3? (16.f4 Nb4+=) 16...Bh2 (better is 16...Qg5 17.Kh1 Qh4–+) 17.Kh2 Qh5 ½–½. cristero (2525) – israelflavio (2240), net–chess.com, 2013.

6.c4 Bd6 7.h3 Bf3 8.Qf3 Nbd7 9.Bf6 Nf6 10.Nc3 Be5 11.Rc1 0–0 (11...c5 12.cd5 Qe7 13.de6 fe6 14.Ne4+/–) 12.cd5 (12.d4!? Bc7 13.cd5 Nd5 14.Nd5 cd5 15.Bd3=) 12...cd5 (worse is 12...ed5 13.d4 Bd6 14.bc6=) 13.Bd3 Rc8 14.0–0 Qa5 15.g4 Bc3 16.dc3 Rc3 17.g5 Nd7 18.Rc3 Qc3 19.Bb1 Qe5 20.h4 Rc8 21.Kg2 Nf8 22.Bd3 Ng6 23.Kh3 Qc3 24.Bg6 hg6 25.h5 gh5 26.Qh5 Qd3 (26...g6 27.Qh4–+) 27.Kg2 (27.Rh1!? Rc2 28.Kg3+=) 27...Qe4 (27...Qb5?? 28.Rh1 Kf8 29.Qh8 Ke7 30.Qc8+–) 28.Kg3 Qe5 29.Kg4 g6 30.Qh6 Rc4 31.f4 Qe3 32.Rf3 Qg1 33.Rg3 Qd1 34.Rf3 Rc3 (34...Rc3 35.Qh3 a6–+) 0–1. Kuehnemund,Lutz (2080) – Rohde,W (2175), 10th Lichtenberger Sommer, 2011.

6.c4 Nbd7 7.Be2 Bd6 8.Nc3 0–0 9.d4 Ne4 10.0–0 (10.Ne4 de4 11.Nd2 Be2 12.Qe2 Bb4 13.bc6 bc6=) 10...f5 (10...Nc3 11.Bc3 cb5 12.cd5 ed5 13.Qb3+=) 11.Ne4 fe4 12.Ne5 Be2 13.Qe2 Be5 14.de5 Qg5 15.bc6 bc6 16.cd5 cd5 17.Qa6 Qf5 (17...Nc5 18.Qd6 Rac8 19.Rac1+=) 18.Qd6 Nb6 19.Qa3 (19.Bc3 Nc4 20.Qc5 Rf7–/+) 19...Nc4 20.Qc3 Rab8 21.Ba3 Rf7 22.Bd6 Rb2 23.Qb2 (better is 23.Qe1–/+) 23...Nb2–+ 24.Rab1 Rb7 25.Rfc1 h5 (better is 25...Qh5–+) 26.Rc2 h4 27.h3 g5 28.Rbb2 Rf7 29.Rc8 Kg7 30.Kh2 d4 31.ed4 Qf4 32.g3 hg3 33.fg3 Qf1 34.Rcc2?? (better is 34.Rc7–+) 34...e3 35.Rg2 Rf2 (35...Rf2 36.Rbf2 ef2–+) 0–1. Koester,Roman (2120) – Meyer,Kai Christian (2135), Hessenliga, 2006.

6.h3 Bf5 =.

5.b5 Bd6

6.c4 0–0 7.d4 a6 =+.

6.c4 0–0 7.d4 c6 8.c5 Bc7 9.Nbd2 Ba5 10.h3 Bf5 11.Qa4 cb5 12.Bb5 Ne4 13.Rd1 a6 14.Be2 b5 15.Qb3 Qf6 16.0–0 Nd2 17.Nd2 Qg6 18.e4 de4–/+ 19.g4 Nc6 20.Qg3 e3 21.Qe3 Bc2 22.Rc1 Ne7 (23.Nf3 Nc6=+; better is 22...Nb4!? 23.Nb3 Nd5=+). Van Rooijen,Peter (1785) – Graff,John (1975), CL3–2001.21.01, 2001.

6.c4 0–0 7.cd5 ed5 8.Be2 Nbd7 9.Nc3 Qe7 10.Nd4 Ne5 (10...Be2!? 11.Qe2 Rfe8+=) 11.f3 Bd7 12.Qc2 Nc4 (better is 12...c5 13.bc6 Nc6+=) 13.Nd5+/– Nd5 14.Qc4 Qh4 15.Kf1 Nb6 16.Qc2 g6 (16...Bh2?? 17.f4 Qg3 18.Nf3+–) 17.f4 Nd5 (17...Bg4 18.Bd3+/–) 18.Bf3+– c6? (better is 18...Nf6+–) 19.bc6 bc6 20.Nc6 Be6 (20...Nb6 21.Qc3 f6 22.Qd3 Bc6 23.Bc6+– (23.Qd6?! Bf3 24.Qe6 Kg7 25.gf3 Rad8+–)) 21.g3 (21.Qd3 Rab8 22.Nb8 Rb8 23.Rb1 Nf4 24.Qd4 (24.Qd6?! Bc4 25.Kg1 Rb2+–; 24.ef4?! Qf4 25.Ke1 Ba2+–) 24...Rb2 25.Rb2+– (25.Qb2?? Nd3 26.g3 Qh3 27.Kg1 Nb2 28.Rb2 h5–+)) 21...Qh3 22.Kf2 Rac8 (22...Rfc8 23.Qd3 Rc6 24.Qd4+– (24.Bd5?! Bd5 25.Qd5 Rac8+–)) 23.Qd3 (better is 23.Qc4 Ne7 24.Qd4+–) 23...Rc6 24.Qd4 (better is 24.Bd5 Rb6 25.Bg2+–) 24...f6+/– 25.Bd5 Bc5 (25...Be5! 26.Qe4 Bb2 27.Bc6 Ba1+/–) 26.Qe4+/– Rd6 27.Be6+– Re6 28.Qd5 Bb6 29.f5! Qf5 30.Qf5 gf5 31.Bc3 Rc8 32.Rhc1 Rc4 33.Kf3 Ra4 34.Rcb1 Rg4 35.Rb5 Rc4 36.Rf5 Kf7 37.Rf4 Rcc6 38.e4 Rc4 39.e5 Rf4 40.gf4 1–0. Sloth,Jorn (2340) – Hansen,Lars (2265), 51st Team Ch, 2013.

6.c4 0–0 7.Be2 dc4 8.a4 a6–/+ 9.Nc3 Nbd7 10.Bc4 Nb6 11.Be2=+ ab5 12.ab5 c6 13.bc6 bc6 14.Ra8 Qa8 15.Qc2 Nbd5 16.Ne4 Ne4=+ 17.Qe4 Bf3 18.Bf3 Rb8 19.Bc1 Qa6 20.Be2 Qa1 21.0–0 Rb1 22.Qc4= c5 23.f4 Nb4 24.Bf3= Na2 25.Ba3 Nc3 26.Rb1 (26.Bc5 Rf1 27.Qf1 Qf1 28.Kf1 Bc5 29.dc3 Be3=) ½–½. Muri,H – Luettke,S, corr ICCF EU/M/952, 1992.

6.Be2 0–0 7.0–0 c6 8.a4 cb5 9.ab5 Nbd7 10.c4 (better is 10.Ba3!? Ba3 11.Ra3=) 10...dc4–/+ 11.Bc4 Ne5 12.Ne5?? (12.Be5 Be5 Combination; 12.Ne5 Bd1 Pinning (12...Bd1 Deflection)) 12…Bd1–+ 0–1. mr5reasons1 (1630) – wokkels, gameknot.com, 2012.

6.Be2 0–0 7.0–0 Nbd7 8.d4 c6 9.bc6 bc6 10.Nbd2 Qc7 11.c4 Rab8 12.Bc3 Bf3 13.Nf3= Ne4 14.Qc2 Nc3 15.Qc3 Rb7 16.c5 Be7 17.Rab1 Rfb8 18.Bd3 Rb1 19.Rb1 Rb1 20.Bb1 f6 21.Qd3 f5 22.g4 g6 23.gf5 ef5 24.Bc2 Bf6 25.Bb1 Bg7 26.Ng5 Nf6 27.Ne6 Qd7 28.Ng7 Kg7 29.Bc2 Qc7 30.f3 Qa5=+ 31.a3 h6 32.Kf2 Qc7 33.Kg2 Qb7 34.Qb3 Qe7 35.Kf2 Qc7 36.Kg2 Qe7 37.Kf2 Qc7 38.Kg2 Qe7 ½–½. Bonetti,Shane – PsionChess, 2000.

6.Be2 0–0 7.c4 c6 8.Nc3 Nbd7 9.a4 Qe7 (9...dc4 10.bc6 Bf3 11.Bf3 bc6 12.Rb1–/+) 10.d4= Rac8 11.c5 Bb8 12.a5 Bf3 13.Bf3 cb5 14.Nb5 b6 15.ab6 ab6 16.cb6? (better is 16.Nd6 Rc7 17.Nb5–/+) 16...Qb4–+ 17.Qd2 (17.Bc3 Qb5 18.Rb1 Qa6–+) 17...Qb5 18.Be2 Qb6 19.0–0 (19.Bd3 Ne4 20.Be4 de4–+) 19...Rc6 (better is 19...Ne4 20.Qd3 Qb2–+) 20.Bd3 Bd6 21.f4 g6 (21...Ne4 22.Qe2–+) 22.Qe2 Rb8 23.Bc1 Ne4 24.Qf3 f5 25.g4 Rc3 26.Be2 Qc7 27.h4 (27.Rd1 Rcb3 28.Bd3 Nb6–+) 27...Rcb3 28.h5 (28.Kg2 Ndf6 29.gf5 Qc3–+) 28...Rb1 29.gf5 (29.Rb1 Rb1 30.hg6 hg6 31.gf5 gf5 32.Qg2 Kf8–+) 29...ef5 (29...Ra1 30.hg6 Rc1 31.fe6–+) 30.hg6 (30.Rb1 Rb1 31.Bd2 Rf1 32.Bf1 Nd2 33.Qd5 Kg7 34.hg6 hg6 35.Bd3–+) 30...Ra1 31.Qh5 (31.Bd2 Rf1 32.Bf1 hg6–+) 31...Ndf6 (31...Rc1?? 32.Qh7 Kf8 33.Qf7) 32.Qf5 hg6 33.Qe6 Kg7 (33...Kg7 34.Qh3 Rc1–+) 0–1. Krannich,Sven (1875) – Schnitzer,Peter (2175), Berlin Lichtenberger op 7th, 2008.

6.Be2 0–0 7.h3 Bh5 8.Ne5 Be2 9.Qe2 c6 10.0–0 cb5 11.Qb5 Qc7 12.f4 a6 13.Qb3 Rc8 14.Qc3 Qd8 15.Qd3 Nbd7 16.Nd7 Nd7 17.Nc3 Rc4 18.Nd5? ed5–+ 19.Qd5 Qc7 20.Rf3 Rc2 21.Bc3 Nc5 22.Qf5 Rc3 23.dc3 g6 24.Qd5 Rd8 25.Raf1 Bf4! 26.Qd8? Qd8 27.Rf4 f5 28.Rc4 Qd3 (29.Rd4 Qc3–+) 0–1. Wobick – Gross, corr SOK–89–46, 1989.

6.Be2 c5 7.0–0 0–0 8.c4 Nbd7 9.d4 b6 10.Nbd2 Re8 11.h3 Bf5 12.Nh4 Bg6 13.Ng6 hg6 14.cd5 ed5 15.Bf3 Ne4 16.Qc2 Ndf6 17.Ne4 Ne4 18.dc5 bc5 19.Rfd1 Qg5 20.Be4 (20.a4 Rad8+=) 20...Re4= 21.a4 Rh4 22.Kf1 (22.f4 Qe7 23.Qc3 d4 24.ed4 cd4=) 22...Rc4 (22...Re8!?=) 23.Qd3+/– Rd8 24.Qd5 Qd5 25.Rd5 Be7 26.Rd8 Bd8 27.Be5 Bf6 28.Bf6 gf6 29.Ke2 (29.a5 Re4+–) 29...Kf8 30.Kd3 Rb4 31.Kc3 (31.Rc1!? Ra4 32.Rc5 Ra3 33.Kd2 Ra2 34.Rc2+–) 31...Ke7+/– 32.g3 f5 33.f3 Ke6 34.Ra2 ½–½. mr5reasons1 (1695) – mctaggart (1640), gameknot.com, 2012.

6.Be2 c5 7.c4 Nbd7 8.0–0 0–0 9.Nc3 Qc7 10.cd5= ed5 11.d4 Bf3 12.Bf3 Bh2 13.Kh1= cd4 14.Qd4 Be5–/+ 15.Qd3 Nc5 16.Qf5 g6 17.Qf6= Bf6 18.Nd5 Bb2 19.Nc7 Ba1 20.Na8 Be5 21.Rd1 ½–½. Gegonz – mensah (1735), internet, 2007.

6.Be2 c5 7.h3 Bf3 8.Bf3 a6 =+.

6.Be2 Nbd7 7.d3 0–0 8.Nbd2 c6 9.a4 Qc7 10.h3 Bh5 11.0–0 Ne5 12.Ne5 Be2 13.Qe2 Be5 14.d4 Bd6 15.c4 Bb4 16.Rfc1 Bd2 17.Qd2 Ne4 18.Qd3 Qd7 19.Rc2 Rfc8 20.Ba3 f5 21.Rac1 Kf7 22.Qb3 a6 23.cd5 cd5 24.Qb4 a5 25.Qb3 Ke8 26.b6 Rc2 27.Rc2 Rc8 28.Rc8 Qc8 29.Qb5 Kf7 30.Bc5 Nd2 31.Qa5 Nc4 32.Qb5 Kf6 33.a5 e5 34.a6 e4 35.a7 Ke6 36.Qa4 Qa8 37.Qb4 Qe8 38.Bf8 g5 39.a8Q 1–0. W Labahn – Tschanter, Paderborn 1989.

6.h3 Bh5 7.g4 Bg6 8.Ne5 Ne4 9.Ng6 hg6 10.d3 Nf6 11.Nd2 Nbd7 12.Bg2 c6 13.bc6 bc6 14.c4 Nc5 15.Qc2 Rb8 16.Bc3 0–0 17.d4 Ncd7 18.c5 Be7 19.f4 Qc7 20.g5 Nh5 21.h4 Ng3 22.Rh3 Nf5 23.Nb3 f6 (better is 23...Bd8!?+/–) 24.e4+– Qf4 25.ef5 gf5 (better is 25...Qf5 26.Qe2 Rf7+–) 26.Qe2 e5 27.gf6?? (better is 27.Na5 Rbe8 28.Nc6+–) 27...Bf6+= 28.Bd2 Bh4 (better is 28...Qg4!?+=) 29.Kd1+/– Qf2 30.Rh4?? (better is 30.de5 Rbe8 31.Qf2 Bf2 32.Na5 Nc5 33.Bb4 Re5 34.Nc6+–) 30...Qh4–/+ 31.Kc2 e4 32.Rh1–/+ Qg3 33.Rh3 Qg4 34.Qf1 f4 35.Qh1 Nf6 36.Rh4 Qg3 37.Rf4?? e3–+ 38.Rh4 ed2 39.Nd2 Qg6 40.Kc1 Qg5 41.Bh3 Qe3 42.Bf5 Qc3 43.Bc2 Rb2 44.Qd1 Qa3 45.Nb1 Qa2 46.Qd3 Ne4 47.Nc3 Rc2! 0–1. Inhoven,Stefan (2230) – Pitic,Jasmin (2200), Verbandsliga Nord Baden, 2004. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Bb2 e6 5.b5 Bd6)

5.b5 Nbd7

6.c4 c5 7.d4 (7.h3 Bf5=) 7...cd4+= 8.ed4 (8.Qd4!? Bf3 9.gf3+=) 8...Bb4–/+ 9.Bc3 Bc3 10.Nc3 dc4 11.Be2 Qa5 12.Rc1 Nb6 13.0–0 0–0 14.Ne5 Be2 15.Qe2 Rac8 16.a4 (16.Rc2 Rfd8 17.Qf3 Nbd5–/+ (worse is 17...Rd4 18.Qb7 Rd7 19.Nd7 Nfd7 20.Rd1+=)) 16...Rfd8 (16...Na4?! 17.Qa2 Qc3 18.Rc3 Nc3 19.Qa7 Ne2 20.Kh1–/+) 17.Rfd1 Nbd5 (17...Nfd5 18.Nd5 ed5 19.Ra1–+) 18.Nd5–/+ ed5 (18...Rd5?! 19.Nc4 Qd8 20.Qd3=) 19.Ra1 (19.Qc2 Ne4–/+) 19...Rd6 20.Qf3 Re8 21.g4 (21.Re1 Rde6–+) 21...Qc7 (21...Re7 22.Qf5–+) 22.g5 (22.Re1 Ne4 23.Rac1 Rf6–+) 22...Ne4 23.h4 (23.Qh5–+) 23...f6 24.Qh5 Threatening mate... how? 24...g6 25.Ng6 hg6 26.Qg6 Kf8 27.f3 (27.Qh6 Qg7 28.Qg7 Kg7 29.f3–+) 27...fg5 28.Qf5 Rf6 29.Qg4 Rf5 (29...Rf5 30.Qf5 Kg8 31.Qg6 Kf8 32.Qh6 Kg8+–; 29...Nf2 30.Kf2 Qh2 31.Kf1 Re3 (31...gh4?! 32.Re1 Rd8 33.Ra2–+) 32.Qc8 Kf7 33.Qc7 Qc7 34.Ra2 Rff3 35.Kg1 Qg3 36.Rg2 Re1 37.Re1 Qe1 38.Kh2 Rh3 39.Kh3 Qh4#) 0–1. Schraml,Veronika – Hitzler,Philipp, Erbendorf GER, 2006.

6.c4 c6 7.a4 Bd6 8.Qb3 Bf3 9.gf3 0–0 10.f4 Re8 11.Nc3 Nc5 12.Qc2 e5 13.fe5 Be5 (13...Re5? 14.d4 Re6 15.dc5 Bc5 16.bc6 bc6 17.Bh3+–) 14.bc6 bc6 15.cd5 Nd5 16.d4? (better is 16.Nd5!? Bb2 17.Qb2 cd5 18.Rg1+=) 16...Nb4–/+ 17.Qd1? (better is 17.Qf5!? Bd4 18.Bc4 Nbd3 19.Kf1–/+) 17...Bd4–+ 18.Bc4? (18.Be2–+) 18...Qh4 19.0–0 Be3 (better is 19...Bc3 20.Bc3 Qc4 21.Bg7 Qe4–+) 20.Bf7 Kf7 21.fe3 Kg8 22.Rf4 Qg5 23.Rg4? Qe3 24.Kh1 Nbd3 25.Rg7 Kg7 26.Nd5 Kf8 27.Ne3 Nf2 28.Kg2 Nd1 29.Nd1 Nd3 30.Ba3 Kf7 31.Nc3 Rg8 32.Kf3 Rae8 33.Ne4 Ne5 34.Kf4 Nd3 35.Kf3 Ne5 36.Kf4 Nc4 37.Bc5 h5 38.h3 Ke6 39.Rc1? Ne5 40.Ng5?? Kd5 41.Rc3 Ng6 42.Kf5 Re5 43.Kf6 Nf4 44.h4 Rg6 45.Kf7 Rf5 46.Ke8 Rg8 47.Kd7 Rg6 48.Kc8 ½–½. Lunin,Mikhail (2230) – Kalinin,Aleksandr (2110), Kolomna, 2009.

6.c4 c6 7.Be2 Rc8 (7...dc4 8.Bc4 cb5 9.Bb5+=) 8.0–0 (8.bc6 bc6 9.Ne5 Be2 10.Qe2 Rb8 11.Nd7 Nd7+=) 8...Qb6 9.a4 (9.Bf6 Nf6 10.bc6 dc4=) 9...Bf3 10.Bf3 dc4 11.Nc3 (11.Bf6!? Nf6 12.bc6 bc6 13.Qc1=) 11...Ne5–/+ 12.a5 Qd8 (12...Qc7 13.a6–/+) 13.bc6 Nf3 (worse is 13...Rc6 14.Bc6 bc6 15.Ne2+/–) 14.Qf3 Rc6 15.Rfd1 (15.a6 Rb6 (15...Qd2 16.ab7 Rb6 17.Na4 Rb2 18.Nb2+–) 16.Rfb1 Qc7+=) 15...Qd3 (15...Be7 16.a6 Rb6 17.Na4 Ra6 18.Qb7=) 16.Nb5 (better is 16.a6 Ra6 17.Ra6 ba6 18.Qa8 Qd8 19.Qc6 Nd7 20.Qc4=) 16...Rc5?? (better is 16...Ne4 17.Qf4 a6 18.Qb8 Qd8 19.Qb7 Qc8 20.Qc8 Rc8+=) 17.Qb7+/– (worse is 17.Na7 Ne4 18.Rdc1 Rf5+= (worse is 18...Qd2 19.Bd4 f5 20.Rd1+/–)) 17...Qd7 18.Qd7 Nd7 19.Na7+– Rc7 20.Bd4 e5 21.Bb6 Nb6 22.ab6 Rb7 23.Nc6 f6 24.Rdb1 Kd7 25.Na5 Rb8 26.Nc4 Bc5 27.Ra7 Kc6 28.Rc7 Kd5 29.Rb5 Kc4 30.Rcc5 Kd3 31.Rd5 Ke2 32.b7 Rhe8 33.Rb2 Re7 34.d3 Kd1 35.Ra5 Kc1 36.Re2 Do you see the mate threat? 36...Kd1 37.Kf1 Reb7 38.Raa2 (38.Raa2 Rb2 39.Rab2 Rb2 40.Rb2+–) 1–0. Blanco Sanjuan,J – Perez Toledo,A, Las Palmas, 1996.

6.c4 Bd6 7.Be2 dc4 8.Bc4 0–0 9.d4 Nb6 10.Be2 Nbd5 11.0–0 Ne4 12.Nbd2 Ndc3 13.Qe1? Ne2–+ 14.Qe2 Nd2 15.Qd2 Bf3 16.gf3 Qg5 17.Kh1 Qb5 18.f4 f6 19.f3 c5 20.Rg1 c4 21.Qg2 Rf7 22.Rab1 Qa5 23.Ba1 c3 24.Rbc1 Rc8 25.Rc2 g6 26.Rgc1 Rfc7 27.Qh3 f5 28.Kg1 b5 29.Qf1 b4 30.h4 Qd5 31.Qe2 Be7 32.h5 gh5 33.Kf2 Bh4 34.Kf1 Rg7 (35.Rd1 Rg3–+) 0–1. Gegonz – jaskier (2165), internet, 2007.

6.Be2 (--> 4.e3 Nbd7 5.Be2 e6 6.b5).

6.h3 Bf3 7.Qf3 c6 8.a4 a6 9.c4 ab5 10.cb5 Bb4 11.Qf4 (11.Be2 Nc5=) 11...Qa5 12.Be2 0–0 13.0–0 (13.bc6!? bc6 14.Nc3+=) 13...Bd2–/+ 14.bc6 bc6 15.Ba3 e5 16.Qh4 Rfb8 17.Bd6 Rb7 18.Nd2 Qd2 19.Bg4 Ng4 20.Qg4 Qb2 21.a5 Qb5 22.Qf5 g6 (22...Ra5? 23.Rab1 g6 24.Rb5 Rab5 25.Qc2+–) 23.Qc2 Qa6 (23...c5 24.Rab1 Qa6 25.Rb7 Qb7 26.Qa4–/+) 24.Qc3 f6 25.Rfc1 Rc8 (25...Rb5 26.Rd1–/+) 26.Qd2+= Kf7 27.e4 Rb5 28.ed5 Rd5 29.Qa2+= Ke6 30.Bb4 Rb8 31.Be1 Rbb5 Increasing the pressure on the isolated pawn on a5 32.Rc2 Rbc5 33.Rac1 Rc2+= 34.Qc2 c5 35.Qb3 Kd6 36.Qa4 Rd4 37.Qb3 e4 38.Qg3 Kc6 39.Bc3 Rd3= 40.Qf4 f5 41.Qh6 Qc4 42.Be1 Qf7 43.Qf4 Qd5–+ 44.f3 ef3 45.Qa4 Kb7 46.Rb1 Ka7 47.Qf4 Qd4 48.Qd4 cd4 49.gf3 Ne5 50.Kg2? Nf3 (50...Nf3 51.h4 Ne1 52.Re1 Re3–+; 50...Rf3?! 51.Rb5 Re3 52.Bf2–+) 0–1. Sergeyeva,T – Zaitseva,L, Yerevan, 1996.

6.h3 Bf3 7.Qf3 c6 8.a4 a6 9.c4 ab5 10.cb5 Be7 11.Be2 Nc5 12.Nc3 Nb3 13.Ra2 Ne4 14.Qg4 (14.Ne4? de4 15.Qe4 Qd2 16.Kf1 Nc1 17.Bg7 Qa2–+) 14...h5 15.Qg7 Bf6 16.Qh8 Bh8 17.Ne4 de4 (17...Bb2 18.Rb2 de4 19.Rb3 Ra4 20.0–0–+) 18.Bh8 Nc1 19.Ra3 Ne2 20.Ke2 Ra4! 21.Ra4 (21.Rha1 cb5 22.Bd4 Qa5–+) 21...Qd3 22.Kd1 Qb1 23.Ke2 Qb5 (23...Qh1?! 24.bc6 bc6 25.Re4 Qg2 26.Rh4–/+) 24.Ke1 Qa4 25.Rf1 Qc2 26.f3 b5 27.Bc3 (27.fe4 b4–+) 27...c5 (27...b4!? 28.Bf6–+) 28.Ke2 b4 (28...b4 29.Bf6 Qd3 30.Ke1 c4 31.fe4 c3–+) 0–1. Berlandier,P – Spiteri,Jean, Val Thorens op–B, 1994. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.e3 e6 5.b5 Nbd7)

6.h3 Bf3 7.Qf3 Bd6 8.d3 0–0 9.Nd2 a6 10.d4 (10.ba6 Ra6 11.d4 Ra7+=) 10...ab5 11.Bb5 c6 12.Bd3 e5 13.Qd1 e4–/+ 14.Be2 b5 15.0–0 h6 16.c3 Nb6 17.Qc2 Qd7 18.f3 Rfe8 19.fe4 Ne4 20.Ne4 Re4 21.Bc1 Nc4 22.Bc4 bc4 23.Rf3 Qe6 24.Rb1 Bc7 25.Rb7 Qc8 26.Qb1 Re7 27.Rb2 Bd6 28.Re2 Rb8 29.Qc2 Re4 30.Bd2 Rb7 31.Be1 Qb8 32.Rf1 Rb1 33.g4 Ba3–+ 34.Rf3 c5 35.dc5 Bc5 36.Kg2 Rb5 37.Bg3 Qb6 38.Bf2 Qg6 39.Qa4 Rb8 40.Qd7 h5 41.Qd5 hg4 42.Rf4 gh3–+ 43.Kh3 Rbe8 Black terminates the opponent with strong threats 44.Re4 Re4 45.Qc5 Qg4 46.Kh2 Re6 Threatening mate: Rh6 47.Qc8 Kh7 48.Qe6 fe6 49.Rd2 Qf5 50.Kg2 Qa5 (50...Qa5 51.Rd6 e5–+ (51...Qa2?! 52.Re6 Qd2 53.Re5–+)) 0–1. Findlay,Michael (1875) – Ottaviani,Mauro (1960), CB.2003.0.00089, 2003.

6.h3 Bf3 7.Qf3 Bd6 8.Be2 +=.

6.h3 Bh5 7.c4 c6 8.cd5 cd5 9.Be2 Bd6 10.0–0 0–0 11.a4 a5 12.d4 Rc8 13.Nbd2 Nb6 14.Ne5 (14.Ba3!?+=) 14...Be2–/+ 15.Qe2 Rc2 16.Rfc1 Rb2 17.Nd3 Rd2! 18.Qd2 Nc4 19.Qc2 Ne4 20.Rd1 (20.Nb2 Ned2–+) 20...g6 (20...Qg5 21.Ra2–+) 21.Nb2 Nb2 22.Qb2 Qd7 23.Rdc1 Rc8 24.Rc8 Qc8 25.Rc1 Qd7 26.Qc2 Kg7 27.Qc8 Qc8 28.Rc8 Kf6 29.f3 Nd2 30.Rc2 Nc4 31.e4 (31.Kf2 Nb6–+) 31...Ke7 (31...Bf4 32.Kf2 Be3 33.Ke2 Bd4 34.f4–+) 32.g4 (better is 32.Kf2–+) 32...Bf4 33.ed5 ed5 34.Re2 Kd7 35.Kf2 b6 36.h4 h6 37.h5 g5 38.Re1 Nb2 39.Re2 Nc4 40.Re1 Bd2 41.Rd1 Be3 42.Ke2 Nb2 43.Rb1 Bd4 44.f4 gf4 45.Kf3 Be5 46.Rc1 Nc4 47.Rd1 Kd6 48.Rc1 f6 49.Rc2 Kc5 50.Re2 Kd4 51.g5 fg5 52.Kg4 Ne3 (52...Ne3 53.Kf3 g4 54.Kf2 Ke4–+) 0–1. Bouvier,Clement (1725) – Habunek,Patrick (1730), Montigny le Bretonneux–B 7th, 2008.

5.b5 Be7

6.c4 0–0 7.Nc3 =+.

6.c4 0–0 7.cd5 ed5 8.h3 +=.

6.c4 c5 7.h3 Bf5 8.g4 Be4 (8...Bg6!? 9.g5 Ne4+=) 9.g5+/– Nh5 10.Nc3 Nd7 (better is 10...Bg6!? 11.cd5 ed5+/–) 11.Ne4+– de4 12.Nh2 0–0 (12...Bg5 13.Qh5 g6+–) 13.Qh5 Bg5 14.Ng4 g6 15.Nh6 Bh6 16.Qh6 e5 17.h4 Qf6 (17...Re8 18.h5 Nf6 19.hg6 fg6 20.Bg2+–) 18.h5 Qg7 (18...Qe7 19.Bg2 Nf6 20.Rh4+–) 19.Qg7 Kg7 20.Bg2 Rae8 (20...f5 21.d3! Rae8 22.hg6 hg6 23.de4+–) 21.Be4 b6 22.f4 Kg8 (22...f6 23.Bc6 Re7 24.hg6 hg6 25.Bd7 Rd7 26.fe5 fe5 27.Be5 Kf7 28.Ke2+–) 23.hg6 fg6 24.a4 ef4 (24...Re7 25.Bd5 Kg7+–) 25.Bd5 Rf7 26.Bf7 Kf7 27.Rh7 Ke6 28.ef4 Kf5 (28...Nf6 29.Ra7 Kf5 30.Kd1+–) 29.Kf2 Nf6 30.Rf7 Kf4 31.Rf6 Kg5 (31...Kg4 32.Rg6 Kf5 33.Rf6 Kg4 34.Rg1 Kh5 35.Rf5 Kh6 36.Rf3 Rf8 37.Rf8 a6 38.Rh8) 32.Rf3 Re4 (32...Kg4 33.Rg1 Kh4 34.Rf7 Rf8 35.Rf8 g5 36.Rh8) 33.Bf6 Kh5 (33...Kg4 34.Rg1 Kh5 35.Rh3 Rh4 36.Rh4) 34.Rh1 Kg4 35.Rh4 1–0. pierred (2825) – workchess (2220), net–chess.com, 2015.

6.c4 c6 7.a4 a5 8.Be2 (8.h3 Bf5=) 8...0–0 (8...Bf3 9.gf3 0–0 10.Rg1+=) 9.0–0 (9.cd5 Nd5 10.0–0 Bd6=) 9...Nbd7 (9...dc4 10.Bc4 Nbd7 11.d4=) 10.cd5 cd5 11.d4 (11.Nc3 Rc8=) 11...Rc8+= 12.Nbd2 Bb4 (12...Nb6 13.Ba3+=) 13.Rc1 Rc1 14.Qc1 (14.Bc1 Qc7+=) 14...Qc8 (14...Nb6 15.Ba3 Na4 16.Bb4 ab4 17.Bd3+=) 15.Bd3 Qc1 16.Rc1 Nb6 17.Rc7 (17.Bc2!?+=) 17...Na4–/+ 18.Ba1 (18.Bc1 Bd6 19.Rc2 Bf3 20.gf3 Ra8–/+) 18...Ne8 (18...Bf3!? 19.Nf3 Bd6–+) 19.Rb7–/+ Nd6 20.Rc7 Rc8 (20...Rb8!?–/+) 21.Rc8= Nc8 22.Nb3 (22.Ne5 Bd2 23.Ng4 Bc3+=) 22...Bf3+= 23.gf3 Kf8 24.Kf1 (24.Bh7? g6–+) 24...Nd6 25.Nc1 Ke7 26.Ne2 (26.Na2 Nb6+=) 26...Nc4 27.Bc2 ½–½. Danek,Vaclav – Marhoun,Vaclav, Klatovy op–B, 2003.

6.c4 c6 7.cd5 ed5 8.Be2 0–0 =.

6.c4 c6 7.Be2 0–0 8.0–0 Bf3 9.gf3 cb5 10.cb5=+ b6 11.Na3 Nbd7 12.Rc1= Re8 13.f4 Nc5 14.d4 Nce4 15.f3 Nd6 16.Bd3 Qd7 17.Rf2 Rec8 18.Rfc2= Rc2 19.Rc2 Rc8 20.Rc8= Qc8 21.Qa4 Qb7 22.Qd1 Nc8 23.f5 ef5 24.Bf5 Nd6 25.Bd3 Bf8 26.Kg2 Qe7 27.Bc1 Nh5 28.Qc2 g6 29.e4+= de4 30.fe4 Qh4 31.Qe2 Nf4 32.Bf4 Qf4 33.Nc2 Bg7 34.e5 Nf5 35.Bf5 Qf5 36.Ne1 Qe6 37.Nf3 f6 38.Kg3 fe5 39.de5 h6 40.Qe4 Kh7 41.a4+/– h5?? 42.Ng5+– (42...Kh6 43.Ne6 g5 44.Qf5 Be5 45.Qe5 Kg6 46.Ng5 h4 47.Kh4 a6 48.Qe6 Kg7 49.Qf7 Kh6 50.Qf6#) 1–0. Machete (2295) – guest2305, ICC, 2003.

6.c4 c6 7.h3 Bh5 =.

6.Be2 0–0 7.0–0 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 c6 11.c4 cb5 12.cb5 Nbd7 13.Nc3 Nc5 14.Nd4 Be2 15.Qe2 Nce4 (15...e5 16.Nf5=) 16.f3 Nc3 17.Bc3 Nd7 18.Nb3 ½–½. Jovanovic,Momir (2045) – Dichmann,Arno (2105), Munich–ch VM2, 2005.

6.Be2 0–0 7.0–0 Nbd7 8.d3 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 c6 12.bc6 bc6 13.Nbd2 Qc7 14.Nd4 Be2 15.Qe2 Ra8 16.f4 Ra2 17.Qd1 Bb4 18.N4b3 Qa7 19.Kf2 (19.Bd4!? c5 20.Be5+=) 19...Bd2–/+ 20.Qd2 Ng4 21.Ke2 Nh2 22.Qc3 e5 23.Re1 Ng4 24.Kf3 h5 (24...Ne3 25.Re3 d4 26.Nd4 Ra1 (26...ed4 27.Qd4 Qd4 28.Bd4+=) 27.fe5 Nb8=) 25.Qc6+= ef4 26.Qc8 Nf8 27.Bd4 Qe7 28.g3 fg3 29.e4 Ne5 30.Be5 Qe5 31.Re2 (31.d4 Qf6 32.Kg3 h4 33.Kg2 Qg6 34.Kh1 Qg3–+) 31...h4 32.ed5 (32.Kg4 g5 33.Qf5 Qf5 34.ef5–+) 32...Qd5 33.Ke3 Ra8 34.Qh3 Re8 (34...Re8 35.Kd2 Qg5 36.Kd1 Re2 37.Ke2 g2–+) 0–1. Partikas,Valentinas A (2375) – Carlsson,Goeran (2260), corr ICCF Baltic Sea tt–7 bd13, 2002. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 e6 5.b5 Be7)

6.Be2 0–0 7.c4 c6 8.a4 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.d4 dc4 13.Bc4 cb5 14.Bb5 Nb6 15.Nbd2 Nbd5 16.Qb3 Qb6 17.Nc4 Bf3?? 18.Nb6+– Nb6 19.gf3 Nbd5 20.Bd3 Nh5 21.Bc3 Bf6 22.Bd2 b6 23.e4 Ndf4 24.Bf4 Nf4 25.e5 Be7 26.Be4 f5 27.ef6 Rf6 28.Rc1 Rg6?? 29.Kf1 Bd6 30.Qb6 Be7 31.Qb8 Kf7 32.Rc7 Rf6 33.Qd8 Ng6 34.Bg6 Kg6 35.Qe7 Kf5 36.Qg7 Rg6 37.Rf7 Kg5 38.Qe5 Kh6 39.Qf4 Kh5 40.Rh7 Rh6 41.Rh6# (41.Qh6?!=) 1–0. toll (1700) – Irotov (1825), ICC, 2003.

6.Be2 a6 7.Nc3 =+.

6.Be2 Nbd7 7.Nd4 Be2=+ 8.Qe2 0–0 9.f4 Ne4 10.0–0 Bf6 11.d3 Nd6 12.a4 a6 13.c4 dc4 14.dc4 Nc5 15.Nd2 Re8 16.N2f3 Nde4 17.Ne5 Be7 18.Rad1 Bd6 19.Ndf3 f6=+ 20.Nd3 Na4–/+ 21.Nd4? Nac3–+ 22.Qg4 Nd1 23.Rd1 Qe7 (24.ba6 Ra6–+) 0–1. Gross,Wilhelm – Merten,Rainer, xix/22, 1990.

6.h3 Bh5 =.

5.c4 a5

6.b5 Bd6 7.cd5 ed5 8.Be2 =.

6.b5 Nbd7 7.cd5= ed5 8.Be2 Bd6 9.0–0 0–0 10.d3 c5 11.bc6 bc6 12.h3 Bf3 13.Bf3= Re8 14.Qa4 Re6 15.Rc1= Rc8 16.Nd2 Ne5 17.Be5 Be5 18.d4 Bc7 19.Rc3 Qd6 20.Nf1 g6 21.Rac1 (The pressure on the backward pawn c6 grows) 21...Qb4 22.Qc2 Qd6 23.Be2 Bd8 24.Bb5 Qe7 25.Nd2 Kg7 26.Bc6+– Rb8 27.a4 Bc7 28.Bd7 Bh2 29.Kh2 Qd7 30.Rc5 Qd8 31.Rb5 Rb5+= 32.ab5 Qb8 33.Kg1 Qb5+= 34.Qa2 a4 35.Qa3 (35.Nf3 Rb6=) ½–½. Volke,Karsten (2480) – Schwarz,Michael (2390), Bundesliga, 1994.

6.b5= Nbd7 7.cd5 (7.h3 Bf5=) 7...ed5 8.Be2 Bd6 9.Nd4 Be2 10.Qe2 0–0 (10...Be5 11.0–0=) 11.Nf5 Bc5 12.g4 (12.0–0 Re8=) 12...Ne8 13.h4 (13.0–0 Qg5=) 13...f6 (13...Nb6 14.Qd3 Nc4 15.Bd4=) 14.Nc3 Nb6 15.Rc1 (15.a3 c6=) 15...c6 (15...Bb4 16.Qd3=) 16.d3 (16.Nd1 Nc4=) 16...Nd6 (16...Rc8 17.a3=) 17.bc6+= bc6 18.Qf3 (18.Nd5 Nf5 19.Rc5 cd5 20.gf5 Na4=) 18...Nf5 (18...Rb8 19.h5+=) 19.gf5 (19.Qf5 Qe7=) 19...Qe7 (19...Rb8 20.h5 Nd7 21.Na4=) 20.Ne2 (20.h5 h6=) 20...Nd7 (20...Rab8 21.Nd4 Rfc8 22.Rg1 Bd4 23.Bd4+=) 21.Rg1 (21.d4 Rab8 22.Rc2 Rfc8=) 21...Ne5 (21...Rab8 22.Bd4–/+) 22.Be5+= fe5 23.Qg4 Ba3 (23...Bb4 24.Kd1 c5 25.Qg5 Qg5 26.Rg5+=) 24.Rc6= Qb4 (24...Rab8 25.f4=) 25.Kf1 (25.Nc3 Qg4 26.Rg4 Bb4+=) 25...Qg4 (25...Qb1 26.Kg2 Qa2 27.Nc3=) 26.Rg4 Rf5 27.Ng3 Rf7 28.e4 de4 (28...Rd8 29.Ke2=) 29.de4 Rb8 (29...Kf8 30.Rg5 Bb2 31.Rf5 Rf5 32.Nf5=) 30.Nf5 White gets the initiative 30...Kf8 (30...Rd7 31.Rg3 Bb4 32.h5+=) 31.h5 (31.Rg3 Be7 32.Rb3 Rd8+/–) 31...Be7 (31...Bb2 32.a4+=) 32.Rg3 Bf6 (32...Bd8 33.Rc5+=) 33.Ra3 (33.Rb3 Ra8+/–) 33...Bd8+= 34.Rd3 Rf6 (34...Rfb7 35.Rcd6 Bg5 36.R6d5+/–) 35.Rc5+/– g6 (35...Re6 36.Rd7 g6 37.Ne3+/–) 36.hg6 (36.Ne3 gh5 37.Re5 h4+/–) 36...hg6+= 37.Ne3 White launches an attack 37...Bb6 (37...Rf4 38.Re5 Bc7 39.Rc5+/–) 38.Re5+/– Be3 (38...Rf4 39.Kg2+/–) 39.Re3 Rb1 (39...a4 40.Ra5 Rb1 41.Re1+/–) 40.Re1 Rb2 41.Re2 Rb1 42.Kg2 Ra6 43.Rc5+– Ke7 44.Kf3 a4+/– 45.Rc7 Kd6 46.Rc3 Ke5+– 47.Ke3 Rg1 48.f4+– Ke6 49.Rec2 Re1 50.Kf3 Rf1 51.Kg3 a3? 52.Rc6 Rc6 53.Rc6 Kd7 54.Ra6 Re1 55.e5 Rg1 56.Kf2 Rg4 57.Kf3 Rg1 58.Ra3 Rf1 59.Kg4 Rg1 60.Rg3 Rc1 61.Kg5 (61.Kg5 Rc6 62.Ra3+–) 1–0. Santasiere,Anthony – Suesman, Ventnor City, 1944. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Bb2 e6 5.c4 a5)

6.b5 Nbd7 7.cd5= ed5 8.h3 Be6 =.

5.c4 Bb4

6.Qa4 Nc6 7.Ne5 +/–.

6.Qb3?? Nc6+= 7.a3 Bd6 (7...Bf3 8.gf3 Be7 9.Qb7=) 8.cd5 Nd5 (8...Bf3!? 9.gf3 Nd5 10.Qb7 Ne5 11.Be5 Be5+=) 9.Qb7+= Nde7 10.Bb5 Bf3 11.gf3 0–0 12.Nc3 (12.Bc6 Rb8 13.Qa7 Nc6+=) 12...Ne5 (better is 12...a5!? 13.Bc6 Rb8–/+) 13.f4= N5g6 14.Qg2 Rb8 15.Rb1 e5 (15...Nd5!?=) 16.fe5+= Be5 17.d4 c6 18.Bc6 (worse is 18.de5 cb5 19.0–0 Ne5+=) 18...Nh4 19.Qe4 Nc6 20.Qc6 (worse is 20.de5 Ne5 21.Ke2 Nhf3+=) 20...Rb6 21.Qe4 (21.Qd5 Bd6+=) 21...Bf6 (21...Bd4!? 22.Rd1 f5–/+) 22.0–0 Re8 23.Qg4 Be5 (better is 23...Bd4 24.Rfd1 Rg6 25.Rd4 Nf3 26.Kh1 Rg4 27.Rd8 Rd8–+) 24.Kh1+= (worse is 24.de5 Rg6 25.Qg6 hg6–/+) 24...Qa8 (better is 24...Bh2!? 25.Kh2 Rh6=) 25.f3+/– Bf6 26.e4 Ree6? (better is 26...Qd8 27.e5 Be7+/–) 27.Nd5+– Rb5 28.Nf6 Rf6 29.Qh4 Rh6 30.Qg3 Qb7 31.Rf2 Ra6 32.d5 f6 33.f4 f5 34.ef5 Rd5 35.Qf3 Ra3 36.Ba3 Qb1 37.Rf1 Qf5 38.Qb3 Qe4 39.Kg1 Qd4 40.Kg2 Qe4 41.Kg3 Qd3 42.Rf3 Qb3 43.Rb3 Rd7 44.Rb8 Kf7 45.Rf8 Kg6 46.f5 Kg5 47.Bc1 Kh5 48.Be3 h6 49.Kf4 Rd6 50.Ke5 White plans f6 50...Rc6 51.Rf7 a5 52.Rg7 a4 53.f6 ½–½. Clark – Carlson,Curtis W, Social Quarterly, 1968. (=1.Nf3 d5 2.b4 Nf6 3.e3 Bg4 4.Bb2 e6)

6.cd5 ed5?? 7.Qa4+– Nc6 (7...Nbd7 8.Qb4 Bf3 9.gf3+–) 8.Ne5 Qd6 9.Bb5?? (better is 9.a3+–) 9...Bd7= 10.Nd7 Nd7 11.a3 Bc5 12.Qg4 0–0–0 (12...Rg8 13.d4 (worse is 13.Bg7 a6 14.Bf1 Nd8–+) 13...Bb4 14.Nc3+=) 13.0–0 (13.Qg7 Rhg8 14.Qh7 Rg2=) 13...h5 (13...Qg6!? 14.Qg6 hg6 15.Bg7 Rh7 16.Bc6 bc6=) 14.Qg7+= Rhg8 15.Qf7 Rdf8 16.Qh5+/– d4 17.ed4 Nd4+= 18.Bd7 Kd7 19.Qh3+= Kd8 20.Qh4 Kc8 21.Bd4 Bd4 22.Nc3 a6 23.Rac1 Rf4 (23...Rf4 24.Qh3 Kd8+/–; 23...Rh8 24.Qg3 Qg3 25.hg3+=). Gross,Wilhelm – Merten,Rainer, xiii/09, 1986.

6.cd5 Qd5 7.Qa4 Nc6 +=.

5.c4 Nbd7

6.a3 a5 7.b5 Bd6 8.cd5 ed5 9.Be2 Nc5 10.a4 Qe7 11.0–0 Bf3 12.Bf3 Nd3 13.Bf6 Qf6 14.Nc3 c6 15.Be2 Nb4 16.bc6 bc6 17.d4 0–0 18.g3 g6 19.Bf3 Rad8 20.Kg2 h5 21.h4 Rfe8 22.Re1 Qf5 23.Qb1 Nc2 24.Rc1 Na1 25.Qf5 gf5 26.Ra1 Rb8 27.Bh5 Rb2 28.Ne2 Rc2 29.Rc1 Rc1 30.Nc1 Rb8 31.Nd3 Rb3 32.Ne5 Be5 33.de5 Kg7 34.Bd1 Rb2 35.Kf1 c5 36.Ke1 c4 37.Be2 Ra2 38.Kd1 Ra4 39.Bf3 Ra1 40.Kc2 Ra2 41.Kc3 Rf2 42.Bd5 a4 43.Kb4 c3 44.Ka3 Rf1 0–1. Bulcourf – Giaccio, Buenos Aires 1996.

6.a3 c6 7.cd5 ed5 8.h3 Bf3 9.gf3 g6 10.Nc3 Bg7 11.d4 0–0 12.Bg2 Nb6 13.0–0 Nc4 14.Bc1 Qd7 15.Qd3 a5 16.Rb1 ab4 17.ab4 b5 18.Rd1 Bh6 19.Qc2 Nh5 20.Ne2 Qe7 21.e4 Bc1 22.Qc1 Qh4 23.Ra1 f5 24.Ra8 Ra8 25.Qh6 Ra2 26.Re1 de4 27.fe4 fe4 28.d5 cd5 29.Ng3 Qf4 30.Qf4 Nf4 31.Bf1 Nd2 32.Bg2 Nd3 33.Rd1 Nc4 34.Bf1 Nb4 35.Rb1 Rb2 36.Rb2 Nb2 37.Bb5 Kf7 38.h4 Ke6 39.Kf1 Ke5 40.Ke2 Nc2 41.Be8 Nd4 42.Kf1 Nf5 43.Nf5 gf5 44.Ke2 d4 45.h5 h6 46.Bg6 Nc4 47.Bf7 d3 48.Ke1 Kd4 49.Be6 f4 50.Bg4 d2 0–1. Bulcourf – Garcia, Buenos Aires 1995.

6.a3 Be7 7.cd5 ed5 8.Be2 0–0 9.0–0 Re8 10.d3 Bf3 11.gf3 Bd6 12.Kh1 Be5 13.d4 Bd6 14.Nd2 Nf8 15.Rg1 Ng6 16.Qf1 Qd7 17.Qg2 Bf8 18.Bd3 c6 19.f4 b6 20.Nf3 Ne4 21.Ne5 Qd6 22.Be4 de4 23.f5 Ne5= 24.de5 Re5 25.Be5 Qe5 26.f6 Qf6 27.Qe4 Qf2 28.Raf1 Qb2?? 29.Qc6+– Rd8 30.Qc7 (30...Be7 31.Qe7+–) 1–0. Santasiere,Anthony – Sherwin,James, USA, 1952.

6.Qb3 Bf3 7.gf3 dc4 8.Bc4 Nb6 9.Be2 Qd5 10.Qc2!? (10.Qd5) 10...Bb4 11.Rg1 0–0–0 12.Nc3 Qd7 13.Rg7 Rhg8 14.Rg3 Rg6 15.f4 a6 16.a3 Bc3?! (16...Be7) 17.Bc3 Nfd5 18.Bd4 Kb8 19.Bd3 (19.Rc1 Rc8 20.Qc5) 19...Rh6 20.f5! Rh2 21.fe6 Qe6 (21...fe6 22.Rg7) 22.Be4 Nb4? (22...Nf4 23.Rc1 Nbd5 24.Kf1) 23.ab4 Rd4 24.Rg8 Nc8 (24...Ka7 25.Qc7) 25.Rc1 Rd7 (25...Re4 26.Qc7) 26.Bf5 Rh1 27.Ke2 Rc1 28.Be6 Rc2 29.Bd7 Rb2 30.b5 ab5 31.Rc8 Ka7 32.Rc7 b4 33.Bf5 h5 34.Rf7 b3 35.Be4 1–0. Santasiere,Anthony E – Stark,HW, Ventnor City 1944.

6.b5 Be7 7.cd5 ed5 8.Be2 0–0 9.0–0 Re8 10.a4 Nc5 11.a5 Bf5 12.Nd4 Bd3 13.a6 ba6 14.Nc6 (< 14.ba6 Qd6=+) 14...Qd7 15.Ne7 Qe7 16.Bd3 (< 16.ba6 Rab8 17.Bc3 Be2 18.Qe2 Nb3=+) 16...Nd3 17.Bf6 Qf6 18.Ra6 Re6 19.Re6 fe6 20.Qc2 Qg6 21.Qc7 Nf2 22.Rf2 (22.Kf2?! Rf8 23.Kg1 Rf1 24.Kf1 Qb1 25.Kf2 Qb5 26.Qa7 Qd3=) 22...Qb1 23.Rf1 Qg6 24.Qb7 Rf8 25.Qa7 Rf1 26.Kf1 Qd3 27.Kf2 Qb5 28.Qe7 Qc6 29.Kg3 Qc8 30.h3 h6 31.Kh4 Kh7 32.g4 Qc6 33.Kg3 d4 34.Kf4 Qc4 35.e4 Qb5 36.h4 Qb8 (37.e5 Qb2 38.Qe6 Qd2 39.Kf3 Qe3 40.Kg2 Qe2 41.Kg3 d3 42.Qf5 Kg8 43.Qc8 Kf7 44.Qc4 Ke7 45.Qc7 Ke6 46.Qd6 Kf7 47.e6 Kf6 48.g5 hg5 49.e7 Kf7 50.hg5 Qe3 51.Kg4 Qe4 52.Kg3 Qe3 53.Kh4 Qf2 54.Kg4 Qg2 55.Kh4 Qe4 56.Kg3 Qe3=) =. Bulcourf,Carlos (2285) – Miserendino,Alfredo (2220), Villa Martelli Warsteiner, 1999.

5.c4 Bf3

6.Qf3 Bb4 7.cd5 Nd5 (7...ed5 8.Bf6 Qf6 9.Qf6 gf6 10.a3=) 8.Bg7 Rg8 9.Bb2 Nc6 (9...Nd7 10.e4 N5f6 11.Be2=) 10.a3+= Bd6 11.Bb5 (11.e4 Ne5 12.Qh3 Nf4=) 11...Qg5= 12.h3 (better is 12.0–0!?=) 12...Qg2–/+ 13.Qg2 Rg2 14.d4? (14.Kf1 Rg8 15.Ke2–/+) 14...Ke7?? (better is 14...Ne3!? 15.fe3 Rb2–+) 15.Nd2 (15.e4 Ne3 16.e5 Nc2 17.Kf1 Rag8 18.Bc6 bc6+=) 15...Rag8 (better is 15...f6–/+) 16.Ne4? (16.e4 Nf4 17.e5 Rg1 18.Rg1 Rg1 19.Nf1 a6 20.ed6 cd6 21.Bc6 bc6=) 16...Rg1 (better is 16...Ne3!? 17.Rc1 Nd8–+) 17.Rg1 (17.Ke2 Ra1 18.Ra1 Na5–/+) 17...Rg1 18.Ke2 (18.Bf1!?–/+) 18...Ra1–+ 19.Ba1 Ba3 (19...Ba3 20.Bc6 bc6–+) 0–1. Gross,Wilhelm – Merten,Rainer, xiii/13, 1986.

6.Qf3 Bb4 7.Bf6 Qf6 8.Qf6 gf6 9.cd5 ed5 10.a3 =.

5.Be2 Bb4

6.0–0 0–0 7.a3 Bd6 8.c4 dc4 9.Bc4 Nbd7 10.Be2 c6 11.Nd4 Be2 12.Qe2 Qb6 13.Bc3 (13.Nc3!?–/+) 13...Nd5–+ 14.a4 Nc5 15.Na3 Qc7 16.Nc4 Nc3 17.dc3 Bh2 18.Kh1 Be5 19.Ne5 Qe5 20.Rfc1 (20.a5 Rfd8–+) 20...Qe4 21.f3 (21.Rcb1 Rad8–+) 21...Qh4 22.Kg1 e5 23.Nf5 Qg5 24.Nd6 Nb3 25.Nb7 e4 26.fe4 (26.Nd6 ef3 27.Qf3 Rad8–+) 26...Qe7 27.Qa6 Rab8 28.Na5 Nc1 29.Rc1 Qc5 (better is 29...Qe4 30.Qe2 Qa4–+) 30.Kf2 (30.Nc4 Rfe8 31.e5 Re5 32.Ne5 Qe3 33.Kh2 Qc1 34.Nf3 Qf4 35.Kg1 Rb1 36.Kf2 Rb2 37.Kg1–+) 30...Rb2 31.Kf3 Qh5 32.g4 Qh3 33.Kf4 Qh2 34.Kf5 Rf2 (34...Rf2 35.Kg5 f6#) 0–1. Neumann,Frank (1650) – Haas,Uwe (2275), RSX16D – Goldener Oktober–1, 2007.

6.0–0 0–0 7.c4 Nc6 8.d4 dc4 9.Bc4 Ne4 10.h3 Bh5 11.Be2 Qe7 12.Nfd2 Be2 13.Qe2 Nd6 14.a3 Ba5 15.Nb3 Bb6 16.N1d2 a5 17.Qg4 f6 18.e4 Nf7 19.Nc4 Ba7 20.Kh1 a4–/+ 21.Nc5 Bc5 22.dc5 Nh6 23.Qh5 e5 24.Rac1 Nf7 25.Ne3 Ng5 26.Nf5 Qf7 27.Qg4 Rfd8 28.h4 h5 29.Qe2 Ne6 30.Rfd1 Nf4–+ 31.Qf3 Kh7 32.g3–/+ Ne6 33.Kg2 g6 34.Ne3? Ned4 35.Rd4 Nd4 36.Bd4 ed4 37.Nd5 c6 38.Qf6 Qf6 39.Nf6 Kg7 40.e5 d3 41.Ne4 Ra5 42.Nd6? Rd7 43.f4? Rc5!–+ (44.Ra1 Rc2 45.Kf3 c5–+) 0–1. pumpkin (2015) – pallen (2050), net–chess.com, 2003.

6.0–0 0–0 7.h3 Bf3 8.Bf3 c6 –/+.

6.a3 Bd6 7.Nc3 c5 8.0–0 0–0 9.h3 Bf3 10.Bf3 Nc6 11.Rb1 a6 12.Ba1 b5 13.Ne2 Rc8 14.Nc1 Ne5 15.Be5 Be5 16.Nd3 Bb8 17.c3 ½–½. grasimenezes (2275) – israelflavio (2240), net–chess.com, 2013.

6.h3 Bf3 7.Bf3 c6 8.0–0 –/+.

6.h3 Bh5 7.a3 Bd6 8.0–0 0–0–/+ 9.d3 Nbd7 10.Nbd2 Qe7 11.c4 c6 12.d4 b6 13.Qa4 Rfc8 14.Qc2 h6 15.Bd3 e5 16.de5=+ Ne5 17.Ne5 Be5 18.Be5 Qe5 19.g4 Bg6 20.Bg6 fg6 21.Qg6 Qe8 22.Qe8= Re8 23.cd5 cd5 24.Rfc1 Rac8 25.Nf3 Kf8 26.Kf1 Ke7 27.Ke2 a6 28.Nd4 g6 29.Nc6 Kd6 30.Nd4 h5 31.f3 Kd7 32.g5 Nh7 33.h4 Nf8 34.Kd2 Ne6= 35.Ne6 Re6 36.Rc8+= Kc8 37.Rc1 Kd7 38.Kd3 Re5 39.Kd4 Rf5 40.f4 a5 41.Rb1 Kc6+= 42.a4 Kc7? 43.Rb5 Kc6+= 44.Kd3 Kc7 45.Kd4 Kc6 46.Kd3 Kc7= 47.Kd4 (better is 47.Ke2!?+/–) ½–½. Garcia,Joana – Sierra Parada,Mery Z, Pan American–ch U12 Girls, 1998.

6.h3 Bh5 7.a3 Bf3 8.Bf3 Bd6 9.c4 –/+.

6.h3 Bh5 7.g4 Bg6 8.g5 Ne4 9.Bg7 Rg8 =+.

4.Ne5 Bf5

5.a3 c5 6.bc5 (6.e3 Nbd7 7.Bb5 cb4 8.ab4 a6 (worse is 8...Bb4 9.g4 Bg6 10.g5+/–) 9.Nd7 Nd7+=) 6...Bc5+= 7.e3 Qb6 (7...Nc6 8.Nc6 bc6 9.Be5+=) 8.Ra2 Nc6 9.g4 (9.Nc6!? Qc6 10.Bf6 gf6 11.Nc3+=) 9...Be4–/+ 10.f3 Ne5 11.fe4 d4 (11...Neg4 12.e5 Ne3 13.de3 Be3 14.Bb5 Qb5 15.ef6–/+) 12.ed4 (12.g5 Ne4 13.Bg2 Nd6–/+ (13...Ng5?! 14.h4+=)) 12...Bd4 13.c3 (13.Bd4 Qd4 14.Qe2 Rc8–+) 13...Bf2–+ 14.Ke2 Neg4 (better is 14...0–0–0 15.d4 Ne4–+) 15.h3? (15.Qa4 Kd8 16.d4 Qd6 17.Qa5 b6–+) 15...Nh6?? (better is 15...Nh5 16.hg4 Ng3 17.Kf3 Nh1–+) 16.Qa4–/+ Ke7 (16...Kd8 17.Qb4–/+) 17.d4 Bh4 (worse is 17...Ne4 18.Bg2 Ng3 19.Kf2 Nh1 20.Bh1=) 18.Nd2 Nh5 19.Rg1+= f5 20.Bc1 Ng3 21.Kd1= fe4 22.Rb2 Qc6 23.Qb4 Kf6 24.Nc4 Nhf5 25.Ne5 Qe8 26.Ng4 Kg6= 27.Bb5 Qf8 28.Ne5+= Kh5 29.Qc4 g5 30.Bd7 Ng7? 31.Be6 Ne6+= 32.Qe6 Nf5?? 33.Rb7+– Re8 34.Rh7!! (34.Rh7 Rh7 35.Qg6#) 1–0. Carbonell Bofill,C (2170) – Frances Cuscullola,O (2005), XXIX Open Barbera del Valles ESP, 2006. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bf5 4.Ne5 e6)

5.a3 Bd6 6.e3 +=.

5.b5 Nbd7–/+ 6.Nd7 Nd7 (6...Qd7 7.e3+=) 7.e3+= e6 8.d3 c6 9.Nd2 cb5 10.e4 (10.Be2 Qc7+=) 10...Bg6 11.ed5 ed5 12.Qe2 Qe7 13.Qe7 Ke7 14.Be2 Re8 15.0–0 f6 16.Bf3 (16.Rfe1 Kd8 17.Bc3 Bd6–/+) 16...Kd6–/+ 17.a4 b4 18.Bd4 a6 19.Nb3 (19.Rab1 Ne5–/+) 19...Ne5 20.Bd1 Kd7 21.Bb6 Bd6 22.f4 Nc6 23.Bf3 Ne7 24.a5 Rc8 25.Rf2 h5 26.Re1 Rc3 (26...Bf4?! 27.Nc5 Rc5 28.Bc5=) 27.Bd4 Rc6 28.g3 (28.g4 hg4 29.Bg4 f5–/+) 28...Rhc8 29.Ree2 Bf7 30.Kh1 (30.Bg2 Be6–/+) 30...Rh8 (30...Nf5 31.Bg2 Nh6 32.Bh3 Ng4 33.Kg1–/+) 31.Re1 Nf5 Black intends h4 32.Bg2 Nd4 33.Nd4 Rc3 34.Bh3 Kc7 35.Rfe2 h4 36.Re7? (better is 36.Kg2 hg3 37.hg3–/+) 36...Be7–+ 37.Re7 Kb8 38.Rf7 hg3 39.Kg2 (39.hg3 b3 40.cb3 Rd3–+) 39...b3! 40.Nb3 (40.cb3 Rd3 Deflection (40...gh2 Passed pawn); 40.Nb3 Rc2 Deflection (40...gh2 Passed pawn)) 40...gh2 41.Kh2 Rc2 (41...Rc2 42.Kg3 Rc3–+) 0–1. Baumann,Walter (2105) – Skogfeldt,Torgny (2155), Sweden – Switzerland, 2009.

5.Bd4 e6 6.b5 c5 7.bc6 Nc6 8.Nc6 bc6 9.c3 Bd6 10.Qa4 0–0 11.Qc6 Qb8–+ 12.e4 e5 13.Be5? Be5 14.ef5 Qb2 15.Qa4 Rfe8 16.Bb5 Qc1 17.Ke2 Qh1 18.Be8 Re8 19.Kf3 Bh2 20.c4 Qf1 21.Qe8 Ne8 22.cd5 Qd3 23.Kg4 Qe2 24.Kh3 Qh5# 0–1. deepaktnj – pierre (2120), internet, 2007.

5.a3 Nbd7

6.d4 e6 7.Nd2 a5 8.b5 Ne4 (8...Bd6 9.e3+=) 9.Ne4 (9.e3 Ne5 10.de5 Qh4 11.Ne4 Be4=) 9...Be4 10.Nd7 Qd7 11.e3 a4 (11...Bd6 12.f3 Bf5 13.c4+=) 12.f3= Bg6 13.c4 Be7 14.Rc1 White plans c5 14...Bh4 (14...0–0 15.Bd3=) 15.g3 Be7 16.c5 h5 (16...0–0 17.h4 h6 18.Be2=) 17.h4 (17.c6 bc6 18.Rc6 h4=) 17...Bf5 (17...c6 18.b6=) 18.Qe2 f6 (18...0–0 19.Bg2=) 19.Qg2 (19.Bg2 Ra5 20.c6 bc6 21.Rc6 Bd6=) 19...Kf7 (19...Rd8 20.e4 de4 21.fe4+=) 20.e4+= de4 (20...Bg6 21.Bd3+=) 21.fe4+/– Bg4 22.Bc4 (22.Be2 Be2 23.Qe2 Ra5+=) 22...Rad8 (22...Ke8 23.0–0+=) 23.0–0 c6 (23...Ke8 24.Qc2 Bh3 25.Rf3+/–) 24.b6 (24.bc6 Qc6 25.Qc2 Rhf8+=) 24...Rdg8 (24...Ke8 25.Be2+/–) 25.Kh1 (25.Qc2 Ra8+/–) 25...g5 (25...Rd8 26.Qc2+/–) 26.d5 gh4 27.d6 (better is 27.gh4 Rg6 28.d6+/–) 27...hg3? (27...h3 28.Qf2 Bd8+/–) 28.Qg3?? (better is 28.de7 Rg6 29.Qg3 Qe7 30.Qf4+–) 28...Be2 (28...Bd8 29.Bf6 Bf6 30.e5+=) 29.Qf2 (29.Qh4 Bf1 30.Rf1 Rg4+=) 29...Bc4 (better is 29...Bf1!? 30.Rf1 Rh6 31.de7 Qe7+/–) 30.Bf6 Bf6 (30...Ke8 31.Rc4 Bf6 32.Qf6 Rf8 33.Qg6 Kd8 34.Rf8 Rf8 35.Ra4 Qf7 36.Qf7 Rf7 37.Ra8 Kd7+–) 31.Qf6+= Ke8 32.Rc4 Qg7 (32...Rf8 33.Qg6 Kd8 34.Rf8 Rf8 35.Ra4+–) 33.Qg7 (better is 33.d7 Kd7 34.Rd1 Kc8 35.Rd8 Rd8 36.Qg7 Rd1 37.Kg2+–) 33...Rg7 34.Ra4 Kd7 (34...Rgh7 35.Rf6 e5 36.Ra7+–) 35.Ra7 (35.Ra7 Rb8 36.Rf8 Rg1 37.Kg1 Rf8 38.Rb7 Kc8 39.Rc7 Kb8 40.Rc6 Rg8 41.Kh2+–) 1–0. Gurgenidze – Novopashin, Volgodonsk, 1981. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.Ne5 Bf5)

6.Nd7 Qd7 7.e3 a5 =.

6.e3 Ne5 7.Be5 Nd7 8.Bg3 e6 9.d4 a5 10.b5 Nb6 11.Bd3 Qd7 12.Nc3 Be7 13.0–0 0–0 14.Qf3 Bg6 15.Rfb1 c5 16.bc6 Qc6 17.Ne2 Rac8 18.Qg4 Nc4=+ 19.a4 Na3 20.Rb2 Bd3 21.cd3 f5 22.Qh5 Bb4 23.Be5 Qa4 24.h3 Qd7–/+ 25.Qg5 Rf7 26.Qh5 Nb5 27.Kh1 Nc3 28.Nf4 b5 29.g4 (29...fg4 30.Qg4–+; 29.Qf3 Qe8–/+). Woelfelschneider,Peter – Holzhaeuser,Alexander, HFK–026 TSC, 2002.

5.e3 Nbd7

6.Bd3 Bd3 7.Nd3 e6 8.Nc3 Be7 9.Na4 0–0 10.0–0 Rc8 11.Qe2 c5 12.Nac5 Nc5 13.Nc5 Bc5 14.bc5 Rc5 15.Ba3 Qc7 (15...Rc2!? 16.Qd1 Rc6 17.Bf8 Qf8+=) 16.Bc5+/– Qc5 17.c3 Ne4 18.Rfb1 b6 19.Rb4 Nd6 20.Qa6 Nc4 21.Qa7 Nd2 22.Qb6 (22.Rb6?! Qc3 23.Rd1 Qc2+=) 22...Qc3 23.Qd4 Qd4 24.Rd4 Nc4 25.e4 Nb6 (25...Na3 26.Rc1 (26.ed5?! Nc2 27.Rad1 Nd4 28.Rd4 ed5+/–) 26...de4 27.Re4+–) 26.Rb1 Rc8 27.f3 (27.f3 Nd7 28.ed5 ed5 29.Rd5+–) 1–0. pierred (2740) – grasimenezes (2275), net–chess.com, 2013.

6.Bd3 Bd3 7.Nd3 e6 8.Nc3 Be7 9.Na4 0–0 10.0–0 Rc8 11.f3 c5 (11...b5!? 12.Nac5 Nc5 13.bc5 a5=) 12.Nac5+= Nc5 13.Nc5 Bc5 14.bc5 Rc5 (14...Qe7!?+=) 15.Ba3+/– Qc7 16.Bc5 Qc5 17.c3 e5 18.Qa4 a6 19.Rab1 Qc7 20.Qb4 b5 21.a4 Rb8 22.ab5 Rb5 23.Qa3 Qb7 24.Rb5 ab5 25.Ra1 g6 26.Qa8 (26.Qa8 Qa8 27.Ra8 Kg7 28.Rb8+–) 1–0. pierred (2740) – grasimenezes (2275), net–chess.com, 2013.

6.Nd7 Qd7+= 7.c4 dc4 8.Bc4 e6 9.a3 Be7 10.Nc3 0–0 11.0–0 (11.d3 a5 12.b5 Rfd8=) 11...a5 12.b5 Rfd8 Attacking the backward pawn on d2 (12...Bd3 13.Bd3 Qd3 14.Qf3+=) 13.d4= c5 14.bc6 bc6 15.Na4 Rab8 (15...Qc7 16.Qe1=) 16.Bc3 (16.f3 Nd5 17.Bc1 Qa7+=) 16...Qa7 17.Qe2 Bg6 (17...Bd6 18.Rfc1=) 18.Rfc1 Ne4 19.Be1 Bf6 (19...Bd6 20.Bd3 e5 21.Rc6 ed4 22.Ra6=) 20.f3 (20.Ba6 Rd6 21.Bd3 e5+/–) 20...Nd6= 21.Bg3 Qe7 22.Nc5 (22.Bd6 Rd6 23.f4 c5 24.dc5 Rdd8+=) 22...Nc4 23.Qc4 e5 24.de5 Be5 25.Be5 Qe5 26.e4 Rd4 27.Qc2 f5 28.ef5 Bf5+= 29.Ne4 Be4 30.fe4 c5 31.Re1 c4 32.Rab1 Rc8 33.Qc3 h6 34.a4 Rc5 35.Rb8+= Qb8 Black terminates the opponent with strong threats 36.Qd4 Qb4 The mate threat is Qxe1 37.Rf1 c3 Do you see the mate threat? 38.Qd8 Kh7 39.Rf8 Re5 40.Rh8 Kg6–+ 41.Qd7 Qc5 42.Kf1 Re4 43.Qd3 Qf5 (43...Qf5 44.Qf3 Rf4–+) 0–1. Stadler,Pavel – Chovanec,Vladimir, SI–2006–0–00048, 2006.

6.Nd7 Qd7 7.Bd3 Bd3 8.cd3 e6 9.Qb3 Be7 10.Nc3 0–0 11.0–0 c5 12.bc5 Bc5 13.Ne2 a6 14.Bf6 gf6 15.f4 Kh8 16.Rac1 Be7 17.Qb6 Rg8 (better is 17...Rfc8!?=) 18.Rc7+/– Qd6 19.Qd6 Bd6 20.Rf7 Rg6 (20...Bb4+–) 21.Rb7 Rag8 22.g3 1–0. pierred (2740) – israelflavio (2240), net–chess.com, 2013.

6.Nd7 Qd7 7.Be2 c6 8.a3 e6 9.0–0 Be7 10.Be5 0–0 11.Nc3 Ne4 12.Ne4 Be4 13.d3 Bg6 14.f4 Bd6 15.Bd6 Qd6 16.c4 dc4 17.dc4 Qd1 18.Rfd1 (worse is 18.Bd1 Bd3–/+) 18...Rad8 19.Kf2 h6 20.Bf3 Bc2 21.Rd4 Ba4 22.Rb1 Rd4 23.ed4 Rd8 24.Ke3 Kf8 25.g3 Ke7 26.Kd3 f6 27.Re1 Kf7 28.h4 b6 ½–½. pierred (2740) – israelflavio (2240), net–chess.com, 2013.

6.Nd7 Nd7 7.a3 c6 8.Be2 e5 9.0–0 Bd6 10.d3 Qg5 11.c4 dc4 12.dc4 Bc7 13.Nd2 Rd8 14.Qc1 Qg6 15.e4 Be4=+ 16.Ne4 Qe4 17.Bf3 Qg6 18.Qe3 0–0 19.Qa7 e4 20.Be2 Qd6 21.g3 Qd2 22.Qb7 Bb6 23.Bg7? Kg7–/+ (24.Bg4 Bd4+/–). Schuster,Peter (2340) – Hoch,Hubertus (2165), BdF T, 2004.

6.Be2 Ne5 7.Be5 Nd7 8.Bg3 e6 9.c3 (9.a3 c5=) 9...a5+= 10.b5 Bd6 11.d4 0–0 12.Nd2 Bg3 (12...Ba3 13.Qb3 Qe7 14.Nb1+= (worse is 14.Bc7 a4 15.Qd1 Bb2–+)) 13.hg3+= c5 14.0–0 cd4 15.cd4 Rc8 16.Rc1 Rc7 (16...Qe7 17.Qb3+=) 17.Qa4+= Qc8 18.Qa3 Rc2 19.Nb3 b6 20.Bf3 Qb8 21.Na1 Rcc8 22.Rc6 Rc6 (22...Qb7 23.g4 Bg6 24.Rfc1+=) 23.bc6+= Nf6 24.Rc1 Ne8 25.Nb3 Qd6 26.Qb2 Nc7 27.Be2 Ra8 28.a3 Kf8 29.Nd2 Bg6 (better is 29...b5!?+/–) 30.Qb6+– Qa3?? (better is 30...a4+–) 31.Rc5 Qb4 (31...Qa1 32.Kh2 Ne8+–) 32.Qc7 Qd2 (32...Qb8 33.Qb8 Rb8 34.c7+–) 33.Qd6 Kg8 34.c7 h6 35.c8Q Kh7 36.Qa8 (36.Qdf8 Bf5 37.Qa8 Qe1 38.Kh2 e5 39.Qh8 Kg6 40.Qag8 Qg1 41.Kg1 Kf6 42.Qhg7 Ke7 43.Rd5 ed4 44.Q8f7) 36...Qe1 37.Kh2 Qe2 38.Rc1 (38.f3 Bh5 39.Qf4 Bf3 40.Qf3 Qf2 41.Qf2 f5 42.Qd5 a4 43.Qe6 f4 44.Qc2 g6 45.Qcg6 Kh8 46.Qh6) 38...Qf2 39.Qf4 Qd2 40.Rc8 Bf5 (40...Qg2 41.Kg2 Bd3 42.Rh8 Kg6 43.Qg4 Kf6 44.Qd8) 41.Rh8 1–0. Rachela,M (2365) – Frindt,K (2175), TCh–SVK, 2015. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.Ne5 Bf5 5.e3 Nbd7)

5.e3 e6

6.a3 c6 7.Be2 Be7 (7...Nbd7 8.Nd3+=) 8.0–0 (8.g4 Be4 9.f3 Bg6+=) 8...0–0 (8...Nbd7 9.f4 h6 10.c4=) 9.f4 (9.g4 Bg6 10.f4 h6+=) 9...h6 10.c4 (10.Nc3 Nbd7=) 10...Nbd7+= 11.c5 (11.Nc3 a5+=) 11...a5 (11...Qc7 12.Nd7 Nd7 13.Bg4+=) 12.d4 (12.Nc3 d4 13.ed4 Ne5 14.de5 ab4 15.ab4 Qd4 16.Kh1 Ne4 17.Ne4 Qb2=) 12...ab4 13.ab4 Ra1 14.Ba1 Bb1 (14...Qc7!?+=) 15.Qb1= Ne5 16.de5 Ne4 17.Rd1 f5 (17...Qa8 18.Qb3+=) 18.ef6 (18.Bd4 Qc7+=) 18...Bf6= 19.Bg4 Qe7 20.Bf6 (20.Bf3 Ra8 21.Bf6 Nf6=) 20...Qf6 21.Qa1 Nc3 22.Rc1 d4 23.Kh1 (23.Qb2=) 23...Nd5 (better is 23...Ne4!? 24.Qa2 de3 25.Qe6 Qe6 26.Be6 Kh7=) 24.Qd4+= e5 25.Qe5 (25.fe5?? Qf1 26.Rf1 Rf1) 25...Qe5 26.fe5 Ne3 (26...Re8 27.e6=) 27.Bf3 Re8 28.b5 Re5 (28...cb5 29.Bb7 Pinning (29.Bb7 Deflection)) 29.bc6+/– bc6 30.Bc6 Nc4? (better is 30...Nd5!? 31.g3 Kf7+/–) 31.Bf3 (31.Ba4 Kh7 32.c6 Nb6+–) 31...Nd2? (31...Na3+–) 32.c6 Nf3 (32...Nc4+–) 33.c7 (33.c7 Re8 34.c8Q Rc8 35.Rc8 Kf7 36.Rc7 Kf6 37.gf3+–) 1–0. Vidonyak,Nellya (2255) – Schaefer,Anke (2190), BL, 1999.

6.a3 c6 7.g4 Bg6 8.h4 h5 9.Ng6 fg6 10.g5 Ng8 11.c4 Bd6 12.cd5 ed5 13.Bg7 Rh7 14.Bd4 Ne7 15.Bh3 Nf5?? (better is 15...a5+/–) 16.Bf5+– gf5 17.g6 Re7 18.Qh5 Kd7 19.Nc3 (19.Qf5 Kc7+–) 19...Kc7 (19...f4+–) 20.Rc1 Nd7 (20...Be5 21.Qf5 Bd4 22.Nd5 Kd6 23.Ne7+–) 21.Nb5 (21.Nb5 Kb8 22.Nd6+–) 1–0. pierred (2740) – cristero (2525), net–chess.com, 2013.

6.a3 Bd6 7.d4 Nbd7 8.Nd2 c6 9.Be2 Qc7 10.f4 Ne4 11.0–0 f6 12.Nef3 0–0 13.c4 b6 14.c5 bc5 (14...Be7!?=) 15.dc5+/– (15.bc5?! Be7=) 15...Be7 16.Nd4 a5? (better is 16...Rfb8!? 17.Ne4 Be4 18.Ne6 Qc8+/–) 17.g4 Nd2 18.Qd2 Be4 19.Ne6 Qc8 20.Nf8 Nf8 21.h3 Qc7 22.Bd3 Bd3 23.Qd3 Ng6 24.Bd4 a4 (24...Rb8 25.Qf5+–) 25.Rab1 Nf8 26.b5 Nd7 27.Rfc1 Ra5 28.Qf5 cb5 29.Qd5 Kh8 30.Qf7 Nf8 31.c6 (31.g5!? Qd8 32.c6 Ra8+–) 31...Ra8 32.Rb5 Rc8 (32...Ng6 33.Rc3 Rd8+–) 33.Rb7 Qb7 34.cb7 Rc1 35.Kf2 Bd6 36.b8Q! Bb8 (36...Bb8 37.Qf8#) 37.Qf8 1–0. roy1nc6 (1890) – the_k_lags (1615), gameknot.com, 2013. (=1.Nf3 d5 2.b4 Bg4 3.Ne5 Bf5 4.Bb2 Nf6)

6.a3 Nbd7 7.Bd3 Bd3 8.Nd3 Bd6 9.0–0 0–0 10.Qe2 c6 11.Bf6 Nf6 12.Nc3 e5 13.e4 de4 14.Ne4 Ne4 15.Qe4 f5 16.Qc4 Kh8 17.Nc5 Bc5 18.Qc5 Qd5 19.Qc3 Rad8 20.Rae1 Rfe8 21.Re2 e4 22.Rfe1 Qd4 (22...Re6 23.Qe3=) 23.Qd4+= Rd4 24.d3 Red8 25.f3 a5 26.ba5 Ra4 27.de4 Ra5 28.ef5 Kg8 (28...Rf5 29.Re7+–) 29.Re7 b5 30.Rc7 Ra3 31.Ree7 (31.Rc6?! Ra7+–) 31...Rc3 (31...Kh8 32.Rg7 Rd6 33.Rh7 Kg8 34.Rhg7 Kh8+–) 32.Rg7 Kf8 33.Rh7 Kg8 34.Rcg7 Kf8 35.f6 1–0. pierred (2740) – cristero (2525), net–chess.com, 2013.

6.a3 Nbd7 7.Nd7 Qd7 8.c4 c6 9.cd5 ed5 10.Be2 Be7 11.Nc3 0–0 12.d4 Rfe8 13.0–0 Ne4 14.Ne4 Be4 15.Bd3 Qf5 16.Be4 Qe4 17.Qf3 Qf3 18.gf3 f5 19.Kh1 Bd6 20.Rg1 g6 21.Rae1 Re6 22.Rg2 Rae8 23.Reg1 f4 24.e4 de4 25.d5 cd5 26.fe4 de4 27.Rg5 Be5 28.Be5 Re5 29.R5g4 f3 30.h4 e3 31.fe3 Re3 32.Rc4 f2 33.Re1 0–1. guest343 – guest431, ICC, 1999.

6.a3 Nbd7 7.g4 (7.Bb5 c6 8.Be2 Bd6 9.Nd7 Nd7+= (worse is 9...Qd7 10.g4+/–)) 7...Be4+= 8.f3 (8.Rg1 Ne5 9.Be5 Bd6 10.Bd6 Qd6+=) 8...Ne5–/+ 9.Be5 Nd7 (9...Ng4!? 10.Bc7 Qc7 11.fe4 Nh2–+) 10.Bf4 Bg6 11.d4 Be7 12.c4 h5 13.cd5 ed5 14.Nc3 c6 15.gh5 Rh5 16.Rg1 Bh4 17.Kd2 Qe7 18.Qc1 Kf8 (18...a5 19.ba5 Ra5 20.Qb2+=) 19.Be2 (19.Kd1 Ke8=) 19...Re8 20.Qf1 Bf6 21.Qf2 Rh3 (21...Rc8 22.Rac1=) 22.Rg3 (22.b5 Qe6=) 22...Rh7 (22...Rh4 23.Rg4+=) 23.Qg1 (23.Rgg1 Qe6=) 23...Rh5 (better is 23...Qe6=) 24.Na4?? (24.Rc1 Qe6=) 24...Bh4 (better is 24...Bd4 25.Rc1 a5–+) 25.Rg2= Qf6 26.Nc5 Nc5 27.bc5 Qd8 (27...Re6 28.Qd1=) 28.Qc1 (28.Rg6!? fg6 29.Qg6+=) 28...Bg5= 29.Bg5 Rg5 30.Rg5 Qg5 31.Qg1 Qf5 32.Rc1 Bh5 (32...Ke7 33.Qg3 Kd7 34.Bf1=) 33.Qg3+= Bg6 34.Qc7 Qe6 35.Rc3 Qe7 36.Qe7 Re7 37.Rb3 f5 38.Rb4 Kf7 39.Ra4 a6 (39...b6 40.cb6 ab6 41.Rb4+=) 40.Rb4 Kf6 41.f4 Bf7 42.h4 Be6 43.Rb1 g6 44.Rh1 White prepares the advance h5 44...Rh7 45.Kc3 Ke7 46.Kb4 Kd7 47.Ka5 Kc7 48.h5 gh5 49.Rh5 Rh5 50.Bh5 Bd7 51.Bf7 Bc8 52.Kb4 (52.Bg6 Be6+=) 52...Bd7 (52...b6 53.Kc3=) 53.Bg8 (53.a4 Bc8+=) 53...Bc8 (53...b6 54.Bf7=) 54.Bf7 Bd7 55.Bg6 (55.a4 Kd8+=) 55...Bc8 (55...b6 56.Bh5+=) 56.Bh5 (56.Ka5 Be6+=) 56...Be6 (56...b6 57.Be2=) 57.Be2 (57.a4 Kd7+=) 57...Bc8 (57...b5 58.Ka5 Kb7 59.Bh5=) 58.Bd3 (58.Ka5 Be6+=) 58...Be6 (58...b6 59.Ka4=) 59.Kc3 (59.Ka5 Bd7+=) 59...Kd8 (59...a5 60.Kb3=) 60.Kd2 Ke7 (60...Kc7 61.Kc2=) 61.Ke1 Kf6 62.Kf2 Bf7 63.Be2 Be6 64.Kg3 Kg6 65.Kh4 Kh6 66.Bh5 Bd7 67.a4 Be6 68.Be8 Bc8 ½–½. Letzelter,Jean_Claude – Svensson,Soren, World Senior Team Championship S65, 2017.

6.b5 Nbd7 7.c4 Ne5–/+ 8.Be5 dc4 (8...Bd6 9.Bd6 Qd6 10.d4–/+) 9.Bc4+= Ng4 (9...Bd6 10.Bg3+=) 10.Bg3= Bd6 11.d4 (11.Nc3 0–0=) 11...Nf6 (11...0–0 12.Nd2+=) 12.Nd2 0–0 13.Bh4 Bb4 14.0–0 Bg6 (14...Bc3 15.Rc1 Bb2 16.Qf3=) 15.a3 Be7 16.Qb3 Nd7 (16...Bf5 17.Nf3+=) 17.Bg3 (17.Be7 Qe7 18.Rfc1 Nb6+=) 17...Bd6 (17...h5 18.Rfc1+=) 18.Be2 Bg3 19.hg3 e5 20.de5 Ne5 21.Nf3 Qe7 (21...Bh5 22.Rfe1 Qf6 23.Ne5 Qe5 24.g4+/–) 22.Qc3 (22.Ne5 Qe5 23.Rac1 Be4+=) 22...Ng4 (22...Bh5 23.Rac1 c6 24.Qc5 (worse is 24.Qe5 Qe5 25.Ne5 Be2–/+; 24.bc6?! Nc6 25.Qc5 Qc5 26.Rc5 Bg4+=) 24...Qc5 25.Rc5 Bf3 26.gf3+=) 23.Rac1+/– Rac8 24.Qd4 h5 25.Nh4 Bh7 26.Bg4 hg4+= 27.Qg4 Qa3 28.Qf3 b6 29.Qc6 Bd3= 30.Ra1 Qb3 Exerts pressure on the isolated pawn 31.Rfc1 Bb5 32.Qb7 Attacks the pawn on c7 32...a5 33.Rc7 Rc7+= 34.Qc7 Bd3 35.Nf3 Qb2 36.Re1 a4+= 37.Ne5 Bf5 38.Nc6 Be6 39.Ne7 Kh8 40.Qf4 Qf6–/+ 41.Qb4 Ra8 42.Qa3 Bb3 43.Rc1 Re8 44.Rc7 Rd8–/+ 45.Rc1 Qd6–+ 46.Qd6 Rd6 47.Rc8 Kh7 48.Ra8 b5 49.Ra5 Bc4 50.Nf5? Rd1 51.Kh2 Rd2 52.Kg1? Rd3 53.e4 a3 54.Ne3 Re3! 55.fe3 a2 0–1. Althoff,Guntram (2185) – Richter,Michael (2410), Wichern op 5th, 1999.

6.b5 Nbd7 7.Be2 Ne5 8.Be5 Bd6 9.f4 h5 (9...Be5 10.fe5 Nd7 11.d4–/+) 10.Bb2 Ne4 11.0–0 (11.Bg7?? Qh4 12.g3 Ng3–+) 11...h4 12.Qe1 Bc5 13.d4 Bd6 14.a3 g5 15.Nd2 Nf6 (15...gf4 16.ef4 Qf6 17.c4–/+) 16.c4 c6 (16...gf4!? 17.ef4 h3=) 17.cd5 cd5 (worse is 17...Nd5 18.e4 h3 19.g4 (19.ef5?! hg2 20.Rf2 Bf4 21.Rg2 Ne3=) 19...Bg4 20.Bg4 Nf4 21.bc6 bc6 22.Nc4+–) 18.fg5 Ng4 19.Bg4 Bg4 20.Qf2 Rh7 21.Nf3 Bf3 22.Qf3 Qg5 23.e4 h3 24.g3 Rc8 25.Rf2 de4 26.Qe4 Bg3 27.hg3 (27.Qh7 Bf2 28.Kf2 Rc2 29.Kf3 Rb2–+) 27...Qg3 28.Kf1 Rh4 29.Qb7 Looking at f7 29...Rc7 30.Qa8 Ke7 31.Re1?? (better is 31.d5 Qd3 32.Kg1 Rg4 33.Kh2 Qg3 34.Kh1 Qf2 35.d6 Kd7 36.dc7 Qg2 37.Qg2 hg2 38.Kh2 Kc7 39.Rg1+/–) 31...Rf4 (better is 31...h2 32.Re6 Ke6 33.d5 Kd6 34.Qf8 Kd5 35.Rd2 Ke6 36.Qe8 Kf5 37.Rd5 Kg4 38.Qg8 Kh3 39.Qg3 Kg3 40.Be5 Kf3 41.Rd3 Ke4 42.Rd4 Ke5 43.Rh4 Rc2–+) 32.Rf4?? (32.Ree2 h2 33.Qh1 Qh3 34.Ke1–+) 32...Qf4 33.Kg1 Rc2 34.Qb7 Kf8 (34...Kf6 35.Qe7 Ke7 36.Re2 Re2 37.Bc3 h2 38.Kh1 Qe4) 35.Qa8 Kg7 (35...Kg7 36.d5 Rb2 37.Qh8 Kh8 38.Ra1 h2 39.Kh1 Qe4) 0–1. Jonsson,Gauti Pall (1615) – Arvidsson,Jonas (1990), Reykjavik ISL, Open, 2014.

6.Bd3 Bb4 7.Bf5 ef5 8.Qf3 Qc8 9.Nd3 Be7 10.0–0 c5 11.Nc3 Ne4 12.Nd5+/– Nd2 13.Qh5 Nf1 14.Bg7 Rg8 15.Qh7 Rg7 16.Qg7 Nd2?? 17.Ne5 Nd7 18.Qf7 (18...Kd8 19.Qe7#) 1–0. hpoli – McGhee, ChessWorld.net, 2004.

6.g4 Be4 7.f3 Nfd7 8.h4 Ne5 9.Be5 f6 10.Bg3 Bg6 11.h5 Bf7 12.Qe2 (12.h6 g6=) 12...c6 (12...Nc6 13.b5 Ne5 14.f4=) 13.b5 e5 14.Nc3 Nd7 (14...a6 15.bc6 Nc6 16.Bg2+=) 15.a4 (15.bc6 bc6 16.Kf2 Nc5=) 15...Bb4= 16.Nd1 (16.h6 g6=) 16...0–0+= 17.Bg2 a5 (17...h6 18.Nf2+=) 18.Nf2 (18.h6 g6=) 18...cb5+= 19.c3 Bd6 20.Qb5 Nb6 (20...Nc5 21.h6 Ra6 22.hg7 Kg7 23.Qb1+=) 21.g5 (21.h6 g6=) 21...f5 Black prepares the advance e4 (21...fg5 22.h6–/+) 22.g6 hg6 23.hg6 Bg6 24.Rb1 Ra6 25.f4 e4 26.Bf1 Bc7 (26...Bf7 27.Nh3 Be7 28.Ng5 Bg5 29.fg5 Qg5 30.Bf4+=) 27.Nh3 (better is 27.Qc5!? Na4 28.Qa3+=) 27...Bh5+= 28.Kf2 Qd6 29.Ng5 Be8 30.Qb3 Ra8 Attacks the isolani on a4 (worse is 30...Ba4 31.Qa2 Qc6 32.Ba6 ba6 33.Rh7=) 31.c4 Na4 (31...Rf6 32.Be2+=) 32.d4 (32.Qb7?? Rb8 33.Qd5 Qd5 34.cd5 Rb1–+; 32.cd5?! Nc5 33.Qc3 Bd8+= (33...Qd5?? 34.Bc4 Rd8 35.Rh3+–)) 32...ed3 33.Bg2 (33.Qd3 Bc6 Combination; 33.Bd3 Nc5 Decoy) 33...Nc5–/+ 34.Bd5 Qd5! 35.cd5 Nb3 36.Rb3 b5 37.Ne6 Rf7 38.Rd3 Bd6 39.Ng5 Rc7 40.e4 Rc2 41.Kf3 fe4 42.Ne4–/+ Bf8 43.f5 Bd7 44.Rh5 a4 45.Be5–/+ a3 46.Kf4? a2–+ 47.Ng5?? Ra4 48.Ne4 Rf2 49.Rf3 Rf3 50.Kf3 a1Q 51.Ba1 Ra1 52.f6 g6 53.Rh2 Rf1 54.Ke3 Rf5 55.Kd4 Rh5 56.Ra2 Bf5 57.Ng3 Rg5 58.Nf5 Rf5 59.Ra6 Kf7 60.Rb6 b4 61.d6 Ke6 0–1. Ross,David (2300) – Kavutskiy,Konstantin (2330), Saint Louis USA, Closed IM Nov, 2014. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Bg4 4.Ne5 Bf5)

6.g4 Be4 7.f3 Bg6 8.g5 =.

6.g4 Ne5 7.gf5 =.

6.g4 Bg6 7.Ng6 hg6 8.a3 Bd6 =.

6.g4 Bg6 7.h4 Bb4 8.Ng6 hg6 9.Bd4 –/+.

6.g4 Bg6 7.h4 Bb4 8.h5 Be4 9.f3 +–.

6.g4 Bg6 7.h4 Qd6 8.d3 h6 9.Ng6+= fg6 10.a3 Nbd7 11.Nd2 0–0–0 12.c4 Kb8 13.c5 Qe7 14.c6+/– bc6 15.Rc1 Qd6 16.Nf3 Be7 17.Bh3 g5 18.hg5+/– hg5 19.Bd4 c5 20.Bc5 Nc5+/– 21.bc5 Qa6 22.Ng5 Rdf8 23.c6 Ne4 24.Qb3 Ka8 25.Qb7 Qb7+/– 26.cb7 Kb8 27.de4 (27...Bg5 28.ed5 ed5 29.Bg2 Rh1 30.Bh1+/–; 27.Ne6 Nf2 28.Rc7 Ba3 29.Rc8 Kb7 30.Rf8 Rf8 31.Nf8 Nh1+/–) 1–0. Conde,Jose A – Schulz,Hans_Juergen, TT–06 TSC, 2003.

4.Ne5 Bh5

5.a3 Nbd7=+ 6.Nd3 e6 7.Nf4 (7.g3 Bg6=+) 7...Bg4 8.f3 Bf5 9.e3 Bd6 10.Nc3 0–0 11.Nb5 Be5 (11...Bf4 12.ef4 a5 13.Be2=+) 12.Be5 Ne5 13.d4 Ned7 14.g4 Bg4 15.fg4 Ne4 16.Bg2 Qh4 17.Ke2 Qf2 18.Kd3 e5 (18...g5!? 19.Qe2 gf4–/+) 19.Qe2+= ef4 20.Nc7 Rfc8 21.Nd5 Qe2 22.Ke2 Rc2 23.Kd3 Rg2 24.Ke4 fe3 25.Kf3 Rb2 26.Ne3 h5 (26...Re8 27.Nd5+=) 27.gh5 Re8 28.Nf5 Rb3 29.Kf4 Re2 30.Kg5 (better is 30.Nd6!?+=) 30...Re4=+ 31.Nd6 Rd4 32.Rhd1 (32.Nb7?? f6 33.Kf5 Rf3 34.Ke6 Nf8 35.Ke7 Re3#) 32...f6 33.Kf5 Rh4 34.Ke6 Nf8 35.Kd5 Rh5 36.Kc4 Rhh3 (36...Rb2!?–/+) 37.Nb7=+ Rbe3 38.Rd2 Rd3?? (better is 38...Ra3 39.Ra3 Ra3=+) 39.Rd3+– Rd3 40.Kd3 f5 (40...Nd7 41.Nd6 Ne5 42.Ke4+–) 41.Nd6 f4 (41...Ne6 42.Re1 Nf4 43.Kd4+–) 42.Ke4 Ne6 43.Kf5 Nd4 44.Kf4 Ne6 (44...a6 45.a4+–) 45.Ke5 Nd8 (45...Ng5 46.Rf1+–) 46.Kd5 a6 (46...Nf7 47.Nf7 Kf7 48.Rc1+–) 47.Re1 g6 48.Re8 Kh7 49.Rd8 g5 50.Ra8 g4 51.Ne4 Kh6 52.Ra6 Kh5 (52...Kh7 53.b5 Kg7 54.b6 Kf7 55.b7 Ke8 56.b8Q Kf7 57.Qc7 Ke8 58.Ra8#) 53.b5 (53.Ke5 g3 54.Kf4 gh2 55.Ng3 Kh4 56.Rh6#) 53...Kh4 (53...g3 54.hg3 Kg4 55.b6 Kf3 56.b7 Ke3 57.b8Q Ke2 58.Qb2 Kf3 59.Rf6 Kg4 60.Qe2 Kh3 61.Rh6#) 54.b6 (54.Rh6#) 54...Kh3 (54...g3 55.b7 Kg4 56.b8Q Kf3 57.Rf6 Ke2 58.Qb2 Ke3 59.Qd2#) 55.b7 Kh2 (55...Kg2 56.b8Q Kh1 57.Qf8 Kh2 58.Rh6 Kg2 59.Qf2#) 56.b8Q (56...Kh1 57.Rh6 Kg2 58.Qg3 Kf1 59.Qf2#) 1–0. kamret (2140) – peacewhite (2160), GameColony.com, 2003.

5.a3 e6 6.c4 Bd6 7.Qa4 c6 8.e3 0–0 9.c5 Be5 10.Be5 Nbd7 11.Bb2 a5 12.d4 b5 13.cb6 Qb6 14.Bc3 ab4 15.Qb4 Qc7 16.Nd2? Rfb8–+ 17.Qe7 Ra4 18.g4 Bg4 19.h3 Bf5 20.Nc4 dc4 0–1. pozarski (1960) – kaspon (2275), GameColony.com, 2002.

5.Qc1 Nbd7 6.e3 e6 7.b5 Bd6 8.d4 Ne4=+ 9.Nd7 Qh4 10.g3= Qg4 11.Ne5 Be5=+ 12.Nd2 Bd6 13.Ne4 Qe4 14.Rg1 0–0 15.Qd2 Rfc8 16.h3 c6 17.Rc1 cb5–/+ 18.Bb5 Bg6 19.Bd3 Qf3 20.Bg6 hg6 21.Qe2 Qe4 22.f3 Qf5 23.h4 Rc6 24.c3 Rb6 25.Rc2 Rc8 26.e4 de4 27.fe4 Qa5 28.Kf2 e5 29.Ba1 Rbc6–/+ 30.de5? Bc5–+ 31.Kg2 Bg1 32.Kg1 Qe5 33.Qe1 Rc4 (34.Re2 b5–+) 0–1. Bestard Borras,Miguel – Breier,Andreas, Capdepera 1st, 2004.

5.Qc1 e6 6.a3 =+.

5.Nc3 Nbd7 6.Nd7 Qd7 =+.

5.c4 dc4 6.Qa4 Nbd7 7.Nc4 =.

5.h3 Nbd7 6.g4 Ne5 7.Be5 Bg6 8.d3 e6 9.a3 Bd6 10.Bb2 c6 11.Bg2 Qe7 12.Nd2 Rd8 13.c4 dc4 14.Nc4 Bb8 15.Ne5 Be4 16.Be4 Ne4 17.Qc1 Nd6 18.Qe3 f6 19.Nf3 0–0 20.Rc1 Nb5 21.Nd4 Nc7 22.f4 Rde8 23.0–0? Nd5–/+ 24.Qd2 Qd6 25.e3= g6 26.Ne2 Ne7 27.d4 g5 28.Ng3 Ng6 29.Nh5 gf4 30.ef4 Bc7 31.Rcd1 Bb6 32.Qg2 Qd5 33.Qd5 ed5 34.Rde1 Kf7 35.f5 Nh4 36.Kf2= Bc7 37.Bc1 Re4 38.Re4 de4 39.Bf4 Bb6 40.Be3 Nf3 41.Ng3 Nd4 42.Ne4 Nc2 43.Bb6 ab6 44.Rd1 Ke7 45.Rd6 Rf7 46.Re6 Kf8 47.Nf6 Kg7 48.Ne8 Kf8 49.Nd6 Re7 50.Rf6 Kg7 51.g5 Na3 52.Rh6 Kg8 53.f6 Rd7 54.Nc8 Nc4? 55.Ne7 Kf8 56.Rh7 Nd6 57.Kf3 Ke8 58.g6 Kd8 59.g7 (59.g7 b5 60.g8Q Kc7 61.f7+–) 1–0. Kebrdle,Michael – Williams,R, Detroit ch–MI op, 1992. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.Ne5 Bh5)

5.h3 e6 6.a3 Nbd7 7.g4 Ne5 8.Be5 Bg6 9.Bg2 Bd6 10.Bd6 Qd6 11.d3 a5 12.ba5 Ra5 13.Qd2 Ra6 14.a4 0–0 15.0–0 Rfa8 16.Nc3 c6 17.Rab1 d4 18.Ne4 Ne4 19.de4 R8a7 20.f4 f6 (worse is 20...Ra4 21.f5+=) 21.a5 Qc5 22.Qb4 (22.e3 de3 23.Qd8 Qf8–/+) 22...Qb4 23.Rb4 c5 (23...Ra5?! 24.Rd4 Be8 25.Rd2=) 24.Rb5 Ra5 25.Rfb1 Be8 26.Rb7 Bc6 (26...e5 27.fe5 fe5 28.Ra7 Ra7 29.Rb2–/+) 27.Rb8 (27.Ra7!? Ra7 28.Rb8 Kf7 29.Rc8=) 27...Kf7–/+ 28.e5 Bg2 29.Kg2 Ra2 30.R1b7 Rb7 31.Rb7 Kg6 32.ef6 gf6 33.Kf3 Rc2 34.h4 White prepares the advance g5 34...f5 (34...Rc3!? 35.Kf2 h5 36.gh5 Kh5–+) 35.h5–/+ Kh6 36.g5 Kh5 37.Rh7 Kg6 38.Re7 Rc3 39.Kf2 Re3 40.Rc7 Re4 41.Kf3 e5 42.Rc6 Kg7 43.fe5 (better is 43.Rc7!? Kf8 44.fe5 Re5 45.g6=) 43...Re5–/+ 44.Kf4 Re2 45.Kf5 Rf2 46.Ke4 Rc2 47.Kd3 Rc1 48.Kd2 Rc3 49.g6 Rc4 (49...Kh6!?–/+) 50.Kd3+= Rc1 51.Kd2 Rc3 52.Kd1 c4 53.Kd2 Rd3 54.Kc2 Rc3 55.Kd2 Rd3 (55...Kh6!?+=) 56.Kc2= Rc3 57.Kd2 Rd3 ½–½. roy1nc6 (1875) – lostinadaze (1880), gameknot.com, 2013. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.Ne5 Bh5)

5.c4 c6

6.Nc3 Qd6 7.d4 Qb4 =+.

6.cd5 Nd5 7.a3 =.

6.cd5 Nd5

7.d4 e6

8.a3 Bd6 9.Nc3 Be2 10.Nd5 Bd1 11.Nf6 gf6 +/–.

8.a3 Bd6 9.Nc3 Be2 10.Ke2 Qe5 11.de5 Be5 12.Nb5 Bb2 13.Nc7 Ke7 14.Na8 Ba1 15.Qa1 +–.

8.a3 Bd6 9.Nc3 Be2 10.Be2?! Qg2 11.Bf3 Qh3 +/–.

8.a3 Nbd7 9.Nc3 Qd6 10.Nc4 Qc7 11.Qb3 Bg6 12.e3 Be7 13.Be2 0–0 14.Rc1 Rac8 15.0–0 Rfd8 16.a4 Qb8 17.Rfd1 Nd5 18.Nd5 cd5 19.Na5 Nb6 20.g3 Rd7 21.Rc8 Qc8 22.Rc1 Rc7 23.Rc7 Qc7 24.Qc3 Qc3 25.Bc3 Na4 26.Bd2 Nb6 27.Nb7 f6 28.Bb5 Kf8 29.Nc5 Bf7 30.Bc3+= Bd6 31.Kf1 Ke7 32.Ke2 h5 33.Nb7 Bc7 34.Na5 Nc8 35.Ba6 Kd7 36.Bb7 Bb6 37.b5 Nd6 38.Bc6 Kc7 39.Bb4 g5 40.f3 f5 41.h3 f4= 42.g4 fe3–/+ 43.Ke3 hg4 44.hg4 e5 45.Nb3 a6 46.Kd3=+ e4 47.Ke3 ab5 48.Bd6 Kc6 49.Be7 ef3 50.Kf3 Bg6 51.Bg5 Bc2–/+ 52.Nc5 b4 53.Bc1 Kb5 54.Ke3 Kc4 55.Bb2 b3 56.g5 Bd8 57.Kf4 Ba5 58.Na4 Bd2 59.Ke5=+ Be4 60.Nb6 Kd3 61.Nd5 Bd5 62.Kd5 Bg5 63.Kc5 Be7 64.Kb5 Kc2 65.Ba1=+ Bf6 66.Kc4 Bd4 67.Bd4= b2 68.Bb2 Kb2 ½–½. Peters,Andreas (2290) – Siepelt,Heiner (2360), Leipzig BL2–O, 1994.

8.a3 Qd8 9.Nd2 =.

5.c4 Nbd7

6.cd5 Nd5 7.Qa4 N5b6 =.

6.cd5 Ne5 7.Be5 Nd5 8.Nc3 f6 9.Nd5 Qd5 10.Bc7 e5 11.b5 Bc5 12.Qa4 Rc8 13.b6 Ke7 14.Qh4 ab6 15.Qh5 Bb4 16.Rd1 Rc7 17.e3 Rc1! 18.Qe2 Rd8 19.Rc1–/+ Bd2 20.Kd1 Bb4 21.Qd3 Qa2 22.Rc7 Ke8 (23.Kc1 Rd3 24.Bd3 Kd8–+) 0–1. Pierred (2210) – Crasher (2345), Rated game, 5m + 0s, 2005.

6.Nd7 Qd7=+ 7.cd5 Nd5 8.a3 a5 9.Nc3 Nb6 10.Ne4 e6 11.Nc5 Qc6 12.Qb3 ab4 13.ab4 Ra1 14.Ba1 Nd7 15.Nd7 Qd7 16.Qa3 Qc8 17.g3 c6 18.Bg2 f6 19.Qa4 Bd6 20.b5+= 0–0 21.bc6 Qa8 22.Qa8 Ra8 23.Bc3 bc6 24.Bc6 Ra3 25.Kf1 Kf8 26.Bb5 Ke7 27.Kg2 Bg6 28.h4 e5+= 29.h5 Be4 30.f3 Bd5 31.Bd3 h6 32.Ra1 Ra1 33.Ba1 Bc5 34.Bc3 Ke8 35.e3 Ke7 36.Bf5 Bd6 37.d4 ed4 38.ed4 Bf7 39.g4 Bd5 40.Kf2 Ba3 41.Ke2 Kf7 42.Be4 Ke6 43.Kd3 Be7 44.Bf5 ½–½. Rosner,Dirk – Kruse,Ernst Bruno, DESC, 1999.

5.c4 e6

6.Qb3 Bd6 7.d4 0–0 8.Nd2 a5 9.ba5 c5 10.dc5 Bc5 11.Nd3 (11.Qb7 Qa5 12.cd5 Ra7–+ (12...ed5?! 13.Nd3=+)) 11...Nbd7 12.Qb5 Ra5 (< 12...Qa5 13.Qa5 Ra5 14.cd5+/–) 13.Qb7 Qe7 14.Nc5 Rb8 15.Qc7 Rc5 16.Ba3 Rc7 17.Be7 Rbc8 18.e4 dc4 19.f3 c3 20.Nb3 Ne8 21.0–0–0 Rb8 22.Kc2 f5 23.ef5 ef5 24.Bg5 Ra8 25.Ra1 Bf7 26.Bd3 Ne5 27.Bf5 Nd6 28.Bf4 Nf5 29.Be5 Ne3 30.Kd3 Re7 31.f4 Nd5 32.Rhe1 Ra3 33.Bd6 Re1 34.Ba3 Re3 35.Kd4 Re2 36.g4 Rh2 37.g5 Rf2 38.Bd6 c2 39.Rc1 Nf4 40.Ke3 Nh3 41.Nd4 Ba2 42.Nc2 Rg2 43.Ne1 Rg5 44.Nf3 Rb5 45.Nd4 Rb7 46.Rc2 Bb3 47.Rc3 Bd1 48.Rc8 Kf7 49.Nc6 Ke6 50.Nd8 Kd7 51.Nb7 Kc8 52.Nc5 Bc2 53.Be5 g5 54.Bf6 Bg6 55.Ne4 h6 56.Nf2 Nf4 57.Kf3 Ne6 58.Nh3 Bh5 59.Kg3 Be2 60.Nf2 Kc7 61.Ng4 h5 62.Nf2 Kc6 63.Ne4 g4 64.Kh4 Bf3 65.Ng3 Kd5 66.Nh5 Ke4 67.Ng3 Kf4 68.Nh5 Ke3 69.Be7 Ke4 70.Bd6 Kf5 71.Ng3 Kf6 72.Nf1 Nd4 73.Ne3 Ke6 74.Ba3 ½–½. marekt – darius, ChessWorld.net, 2004.

6.c5 Nbd7=+ 7.Nd7 Nd7 8.d4 Be7=+ 9.Qd2 0–0 10.e3 c6 11.Bd3= Nf6 12.Nc3 Qc7 13.0–0 Ng4 14.f4 f5 15.a4 b6 16.Ne2 Rf6 17.h3 Nh6 18.Rac1 bc5 19.dc5 Rff8 20.Nd4+/– Bf7 21.b5 cb5 22.ab5 e5? 23.fe5+– Qe5? 24.Nf5 Qe6 25.Ng7 Qd7 26.Qc2 Bg6 27.Bg6 (27...Rf1 28.Rf1 hg6 29.Qg6+–) 1–0. Luehrig,Walter – McCarthy,Mike, Orang–Utan Invitational, 2001.

6.cd5 ed5 7.Qa4 c6 8.b5 =.

6.cd5 ed5 7.Qa4 Nbd7 8.Qb5 Rb8 9.Nd7 Qd7 (worse is 9...Nd7 10.Qd5 Bg4 11.Qd4+/–) 10.Qd7 (10.Qa5 a6=) 10...Kd7 (10...Nd7 11.a3=) 11.Bf6 gf6 12.Nc3 (12.a3 f5=) 12...c6 (worse is 12...Bb4 13.Nd5 Be7 14.Ne7 Ke7 15.Rc1+=) 13.a3 Re8 (13...f5 14.Rc1=) 14.e3 Rg8 (14...Bd6 15.Rc1=) 15.Nd5 (15.Rc1 f5=) 15...cd5 16.Bb5 Kd8 (16...Ke7 17.Be8 Ke8 18.Rc1=) 17.Be8 Ke8 18.Kf1 (18.g3 Bf3 19.Rg1 f5+=) 18...Bg6+= 19.f3 Bd3 (19...Kd7 20.Ke2+=) 20.Kf2= Bd6 (20...Kd7 21.Rac1=) 21.Rac1 Ke7 22.Rc3 Bb5 23.d4 f5 24.g3 Ke6 25.Rhc1 Kd7 26.Rd1 h5 27.Rg1 Rh8 28.Rb1 h4+= 29.f4 h3 30.Kf3 Re8 31.Rb2 a6 32.Rbc2 b6 33.Rb2 ½–½. Rosner,Dirk – Herrchen,Ralf, Tiger SC, 2001.

6.cd5 ed5 7.Qa4 Nbd7 8.e3 c6 9.b5 Ne5 10.Be5 Qb6 11.Nc3 Bg4?? 12.bc6+– bc6 13.Rb1 Qc5 14.Bf6 gf6 15.Qg4 Bd6 16.Be2 Be5 17.0–0 Bh2 18.Kh2 Qd6 19.g3 h5 20.Qf4 Qe6 21.Rb8 Kd7 22.Ra8 Ra8 23.Kg2 Rg8 24.Bh5 Rg5 25.Rh1 Rf5 26.Qh4 (26...Rg5 27.Qa4+–; 26.Qb8!? Qe8 27.Qa7 Kd6+–) 1–0. Labitte,Alain – Van Rompu,Renaud, Bethune op–B, 2002.

6.cd5 Qd5 7.Qa4 b5 8.Qa5 =.

6.cd5 Qd5 7.Qc2 =.

6.h3 dc4 7.Nc4 Bb4 8.Qa4 Nc6 9.Ne5 =+.

6.h3 Nbd7 7.Qa4 (7.Nd7 Nd7 8.cd5 ed5 9.Qb3 Qg5 10.Bd4 c6 11.Nc3 Bg6 12.Rc1 Ne5 13.b5) 7...c6 8.Nd7 (8.cd5 Nb6 9.Qb3 Qd5 10.Qd5 Nfd5 11.g4 f6 12.gh5 fe5 13.a3) 8...Nd7 9.cd5 ed5 (9...Nb6 10.Qb3 Qd5 11.Qd5 cd5 12.a3 Rc8 13.e3) 10.Qb3 (10.e3 Qh4 11.Bd4 a5 12.a3 Bd6 13.Nc3) 10...Qb6 (10...f6 11.b5 a6 12.bc6 bc6 13.d4) 11.e3 (11.b5 Bg6 12.bc6 bc6 13.d3) 11...f6 12.Bc3 (12.a3 a5 13.b5) 12...Bd6 13.Na3 (13.d4 Bg6+=) 13...0–0 14.Nc2 Rfe8 15.Nd4 Be5 16.Qb2 (16.Nf5 Bg6 17.Bd3 Bc3 18.Qc3 Ne5+=) 16...a5–/+ 17.a3 ab4 18.ab4 (18.Qb4 c5 19.Qb6 Nb6–/+) 18...Ra1 19.Qa1 Bd4 20.Bd4 Qb4 21.g4 (21.Bc3 Qe4–/+) 21...c5 (21...Bg6 22.Qb2 Qb2 23.Bb2–+) 22.Bc3 Qe4 23.Rg1 Bf7 24.Bg2 (24.Bb5 Be6–/+) 24...Qe7 (24...Qf4 25.d4–/+) 25.d4–/+ b5 (25...b6 26.Qd1–/+) 26.dc5 Qc5 27.Bd4 Qc6 28.Bf3 Ne5 29.Be2 Ra8 30.Qb1 Bg6 31.Qb2 b4 32.f4 White prepares g5 32...Nd3 33.Bd3 Bd3 34.Kd2? Be4 35.g5 Qc4 36.Ra1 Ra1 37.Qa1 Qc2 38.Ke1–/+ Bf3 39.Qb2? Qb2 40.Bb2–/+ fg5 41.fg5 g6 42.Bc1 Kf7–/+ 43.Bd2 b3 44.Bc3 Ke6 45.Kf2 Bd1 46.Ke1 Bc2–+ 47.Kd2 Kf5 48.Bf6 Ke4 49.Bd4 Kf3 50.Kc3 Kg3 51.Kb4 0–1. Tasic,Zoran (2245) – Stankovic,Branislav D (2270), Zimski Winter Open, 2005.

6.Qa4 c6

7.b5 Qb6 8.cd5 cb5 9.Qh4 Bd6 10.de6 fe6 11.f4 0–0 12.e3 Na6 13.Bd4 Qa5 14.Qh3 Nb4 15.Qe6 Kh8 16.Qb3 Nc6 17.Qb5 Qb5 18.Bb5 Nd4 19.ed4 Rad8 20.Nc3 Bb8 21.Be2 Rd4 22.Rf1 Be2 23.Ne2 Rb4 24.d4 Rb2 25.a3 Re8 26.Rf3 Nd5 27.g3 Kg8 28.Rd1 Bc7 29.Kf2 Bd6 30.Rc1 Ra2 31.Rb3 b6 32.Rc4 Ra8 33.a4 Rd8 34.Kf3 Be7 35.Nc6 Re8 36.Nc3 Nc3 37.Rbc3 1–0. themonkey (2015) – NN, GameColony.com, 2002.

7.b5 Qb6 8.e3 =.

7.b5 Bd6 8.bc6 bc6 9.Bd4 =.

7.b5 Bd6 8.e3 0–0 9.bc6 Nc6 10.Nc6 bc6 11.Bd3 Nd7 12.Qc2 f5 13.f4 Qh4 14.g3 Qe7 15.Nc3 Nc5 16.Rb1 Nd3 17.Qd3 Rab8 18.0–0 Qd7 19.Ba1 Rfd8 20.cd5 ed5 21.Na4 Rb5 22.Be5 Bf8 23.Nc3 Ra5 24.Rb2 Ba3 25.Rb3 Bc5 26.Bd4 Bf8 27.Rfb1= c5 28.Rb7 Qe6 29.Be5 c4 30.Qc2 Rd7 31.Qb2 Be8 32.Rd7 Bd7 33.Qb8 Ra6 34.Bd4 Qe8 35.Qb7 Qe6 36.Ba7 Qc6 37.Bd4 Kf7 38.a4 Kg8 39.Nd5+/– Ra4 40.Qc6 Bc6 41.Nb6 Ra2 42.Nc4 Bd5 43.d3 Rg2 44.Kf1 Rh2 45.Rb8 Ra2 46.Bc5 Ra8 47.Ra8 Ba8 48.Bf8 Kf8 49.Ke2 Ke7+/– 50.Nd2 (50...Kf6 51.e4+–) 1–0. Rudbeck,Joergen (2345) – van Wyk,Abrie (2225), DEN–RSA, 2001.

7.b5 Bd6 8.e3 Qc7 9.d4 =.

7.cd5 Qd5 8.Nd3 =.

7.cd5 Qd5 8.f3 Bd6 9.d4 b5 10.Qc2 Bb4 11.Nd2 c5 12.e4 Bd2 13.Qd2 Qb7 14.dc5 0–0 15.Qb4 a6 16.h4 Nc6 17.Nc6 Qc6 18.Bf6 gf6 19.g4 Qc7 20.gh5 Qg3 21.Ke2 Rfd8 22.Qc3 1–0. marekt – pyrokins, ChessWorld.net, 2003.

6.Qa4 Nbd7

7.e3 c6 8.Nd7 Nd7 9.cd5 ed5 10.a3 =.

7.e3 Bd6 8.f4 (8.Nd7!? Qd7 9.Qd7 Kd7 10.Bf6 gf6 11.c5=) 8...Be5+= 9.Be5 0–0 (9...Ne4 10.g3 (10.Bg7?? Qh4 11.g3 Ng3–+) 10...Bf3 11.Rg1–/+ (11.Bg7? Rg8–+)) 10.Bf6 Nf6 (worse is 10...gf6 11.d4+=) 11.Nc3? (better is 11.Bd3!?+=) 11...d4–+ 12.Ne2 (better is 12.ed4 Qd4 13.Qc2–+) 12...de3?? (12...Ne4 13.Qa5 de3 14.d4 Be2 15.Ke2–+) 13.0–0–0? (better is 13.de3!? Ne4 14.Qc2–/+) 13...Ne4 (better is 13...Ng4!? 14.h3 Nf2 15.de3–+) 14.de3 Qf6 15.Rd4 Rfd8 16.Qc2 Bg6 17.Qb2 Nf2 18.Rg1 Nd3 19.Rd3 Bd3 20.Qf6–/+ gf6 21.Nd4 Be4 22.Be2 c6 23.g4 a5 24.b5 cb5 25.Nb5 Kf8 26.Rg3 Ke7 27.Nc3 Bd3 28.Bd3 Rd3 29.Kc2 Rdd8 30.e4 Rac8–+ 31.Kb3 Rd4 0–1. Neubauer,Jaroslaus (2010) – Neumann,Christoph (1830), Regionalliga NW, 1995. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.Ne5 Bh5 5.c4 e6 6.Qa4 Nbd7)

7.e3 Be7 8.Bd3 dc4=+ (9.Bc4 0–0=+). "Maradona" (1645) – Kelish (1935), internet, 2006.

7.e3 Be7 8.Nd7 Qd7 9.Qd7 Kd7 =.

7.e3 Be7 8.cd5 ed5 9.Nd7 Qd7 10.Qd7 Kd7 11.Be2 (11.a3 Rhe8=) 11...Be2+= 12.Ke2 Bb4 13.Bf6 gf6 14.Nc3 Bc3 15.dc3 c5 16.a4 Rab8 17.c4 dc4 18.Rhc1 b5 (better is 18...Rhg8!? 19.g3 Kc6+=) 19.ab5+= Rb5 20.Ra6 (20.Ra7 Ke6+=) 20...Rb2 21.Kf3 Rb6 (21...Rc8 22.Ra7 Ke6 23.Rc4+=) 22.Ra5 (22.Ra7 Ke6+=) 22...Rc6 23.Rc4 Kd6 24.Ke2 (better is 24.Ra7 Kd5 25.Rf4+=) 24...a6+= 25.g4 (25.h3 h5+=) 25...Rb8–/+ 26.Rf4 Kc7 27.Ra2 Rd8 (27...Rb4!?–/+) 28.h4 Rd7 29.Rb2 (29.Rc4+=) 29...a5 (29...Rd5!?+=) 30.Rb5 (30.Ra4 f5 31.g5 f4+=) 30...c4= 31.Ra5 Kb6 32.Ra2 Kb5 33.Rd2 Rd2 34.Kd2 Kb4 35.g5 Kb3+= ½–½. Bulcourf,Carlos (2170) – Recoulat,Eduardo Juan (2295), Buenos Aires CAA, 2004. (=1.Nf3 d5 2.b4 Bg4 3.c4 e6 4.Bb2 Nf6 5.Ne5 Bh5 6.Qa4 Nbd7)

7.cd5 ed5

8.Qb5 Rb8 9.Nd7 Qd7 10.Qa5 Be7 11.Qa7 0–0 12.Qd4 b6 13.e3 c5 14.Qf4 cb4 15.Bd3 Bg6 16.Bg6 fg6 17.Qd4 (17...Rbc8 18.Qd3=+ (18.Qb6? Rc2–+)) =+. market (2165) – NN, GameColony.com, 2002.

8.Qb5 Rb8 9.Nd7 Qd7 10.Qa5 Be7 11.Qa7 0–0 12.Qd4 Rbe8 13.Nc3 c6 14.Rc1 (14.e3 Bd6=) 14...Bd6 15.Qh4 Qg4 16.Qg4 Ng4 17.b5 d4 18.Na4 cb5 19.Nb6 Ne5 20.e3+/– de3 21.fe3 Re6 22.Be5 Be5 23.Nd7 Ra8 24.Bb5 Bd6 25.Bc4 Rh6 26.Bd5 Bg4 27.Bb7 Re8 28.Bc8 Bg3 29.Kf1 Bh2 30.Rc4 Bf5 31.Ke2 Be4 32.a4 Bg2 33.Rhc1 Bg3 34.a5 Rh2–/+ 35.Kd3 Bf3 36.Kc2 Re3 37.Rg1 Be1 38.Nf6 Kf8 39.Nh7 Ke7 40.Rd4 Bc6 41.Ba6 Re5 42.Rg7=+ Ra5 43.Bc4 Rf5 44.Ng5 Kf6 45.Rh7 –/+. kamret (2215) – RutgersChamp (2040), GameColony.com, 2003.

8.Qb5 Rb8 9.Nd7 Nd7 10.Qd5 Bg4 11.Qd4+/–.

8.Qb5 Be7 9.Qb7+= Ne5 10.Be5 0–0 11.b5 (11.Qc7?? Rc8 12.Qc3 Rc3 13.dc3 Ne4–+; < 11.Bc7 Rc8 12.Qa7 Rc7–+) 11...Re8 12.Qc6 (12.Qc7?? Rc8 13.Qc8 Qc8–+) 12...Bd6 13.Bd4 Re6 14.Qc2 Bg6 15.Qb2 c5 (15...a6 16.a4=) 16.bc6 Rb8 17.Qc1 Rb4 18.Bc3 Rc4 19.Na3 Rc6 20.Nb5 Bc5 21.Qb2 0–1. Woelfelschneider,Peter – Schrecke,Volkmar, 5#0019, 2002.

8.e3 Be7 9.Nd7 Qd7 10.Qd7 Kd7 11.a3 a5 12.b5 c5 13.Nc3 b6 14.h3 Bg6 15.Be2 Kc7 16.Rc1 Rad8 17.Na4 Kb7 18.0–0 h6 19.Rfd1 Ne8 20.d3 Bf6 21.d4 c4 22.Bf3 Bd3 23.Nc3= Nc7 24.Ra1 Rhe8 25.g3 g6 26.Kh2 h5=+ 27.Rac1 h4 28.g4 Bg7 29.Rg1 Rf8 30.Rg2 f5 31.gf5 Rf5 32.Bg4 Rf7 33.Rcg1 Rdf8 34.f4 Re7 35.Nd1? Bh6 36.Rf2 Nb5–+ 37.a4 Nd6 38.Bf3 Kc6 39.Rg4 Bg7 40.Bc1 Rd7 41.Nc3 Ne8 42.Rh4 Nf6 43.Bd1 Rdf7 44.Rg2 Rg8 45.Bc2 Bc2 46.Rc2 Bf8 47.Rg2 Kb7 48.Nb5 ½–½. Ringsborg,Allan (2260) – Jorgensen,Eskild (2235), corr DEN–ch Denmark, 2000.

5.f3 e6

6.a3 Nbd7 7.e3 Ne5 8.Be5 Bd6 9.Bb2 (9.Bd6 Qd6 10.d4 0–0+=) 9...0–0 (9...a5 10.ba5 Ra5 11.Be2+=) 10.Be2 Nd7 (10...a5 11.b5+=) 11.0–0 Qh4 12.f4 Be2 13.Qe2 e5 (13...Rfd8 14.Rf3+=) 14.g3 (better is 14.Qb5!? ef4 15.Qd7 fe3 16.Qh3 Qh3 17.gh3=) 14...Qe7= 15.Qg2 (15.fe5 Ne5 16.Bd4 Nc6+=) 15...c6 16.d3 (16.e4 de4 17.Qe4 Rfe8+=) 16...Nf6 (16...ef4 17.ef4 a5 18.ba5 Ra5 19.Qd2 Bc5 20.Kh1–/+) 17.Nd2 Rad8 (17...a5 18.fe5 Be5 19.c3+=) 18.Rae1 b5 (18...Rfe8 19.c4=) 19.c4 (19.Nf3 e4 20.Nd4 Qe8=) 19...a6 (19...bc4!? 20.dc4 a5 21.ba5 e4=) 20.c5+= Bc7 Black plans d4 21.Nf3 Nd7 22.f5 (22.e4 f6+=) 22...f6 (22...a5 23.e4 ab4 24.ab4=) 23.e4= d4 (23...Qf7 24.Qe2=) 24.Qc2 Kh8 (24...a5 25.Qb3 Qf7 26.Qe6=) 25.a4 Ra8 26.Ra1 (26.a5 Rf7=) 26...Qf7 27.Bc1 (27.Nd2 Rfb8 28.a5 Re8+=) 27...Rfb8 (27...a5 28.ab5 ab4 29.Rb1+=) 28.ab5 (28.a5 Re8+=) 28...Rb5 29.Bd2 a5 30.Ra4 (30.Ra3 Qf8 31.Rfa1 Qe8=) 30...Rab8–/+ 31.ba5 Nc5 32.Rc4 Rb2 33.Rc5 Rc2 34.Rc2 g5 (34...Rb3 35.Rc6 Rd3 36.Rfc1+=) 35.Rc6 (35.fg6 hg6 36.Rc6 Ra8+=) 35...Rb7 (35...g4!? 36.Rfc1 gf3 37.Rc7 Qb3–/+) 36.Rfc1 (better is 36.a6 Ra7 37.Bg5 fg5 38.Ng5+/–) 36...Qh5? (36...g4 37.Ne1 Ra7 38.a6+=) 37.Kg2 (better is 37.a6!? Ra7 38.Rc7 Rc7 39.Rc7 Qf3 40.Rc1 Qd3 41.a7+=) 37...Qf7+/– 38.a6 Ra7 39.R1c4 (39.Bg5 fg5 40.Ng5 Qh5+/–) 39...g4 40.Ng1 Qd7 (40...Kg7 41.Bb4 Bd8 42.Ne2+/–) 41.Ne2 (41.Bb4!?+/–) 41...Bd8 42.Bb4 Qf7?? (better is 42...Ra8+/–) 43.Rc8+– Qd7 (43...Qg8 44.Rb8 h6+–) 44.Ba5 Kg7 45.Bd8 (45.Rd8?! Qb5 46.Bb4 Qa6+–) 45...Qb5 46.R8c7 (better is 46.R8c6 Rf7 47.h3+–) 46...Rc7 47.Rc7 (47.Bc7?! Qa6 48.Nc1 Qa3+–) 47...Kh6?? (47...Kg8 48.Rc4 Qa6+–) 48.a7 (better is 48.Be7 Qb8 49.Bd6+–) 48...Qd3= 49.Kf2 Qe3 50.Kf1 d3 51.Nc3 d2 52.a8Q Qf3 53.Kg1 d1Q 54.Nd1 Qd1 55.Kf2 Qd2 56.Kf1 Qd1 ½–½. Szemesi,Ferenc (1885) – Holobica,Laszlo (1690), Otvoreno Prvenstvo Backe Topole, 2012.

6.c4 dc4 7.Qa4 Nbd7 +=.

6.e3 Bb4 7.c4 Bc5 8.d4 +=.

6.e3 Nbd7 7.Nd3 Bd6 8.Be2 0–0 9.0–0 c6 10.f4 Be2 11.Qe2 Qe7 12.a3 a5 13.b5 cb5 14.Nc3 b4 15.ab4 Bb4 16.Nb5 Rfc8 17.Nb4 Qb4 18.Bc3 Qc4 19.Qc4 Rc4 (19...dc4?! 20.Nd6 Rc6 21.Nb7+=) 20.Ba5 Rc2 21.Bc3 Rca2 22.Ra2 Ra2 23.Nd6 b6 24.Rb1 Ne4 25.Ne4 de4 26.Kf1 f5 27.Ke2 Kf7 28.Bd4 Ra7 29.Rb5 (29.Bb6?? Rb7–+ (29...Nb6?! 30.Rb6 h6 31.h4+=)) 29...g6 30.Rb1 (30.Bb6?? Rb7–+ (30...Nb6?! 31.Rb6 Kf6 32.h3=)) 30...Rb7 31.Rc1 (31.d3 ed3 32.Kd3 b5–/+) 31...Ke7 32.Rc8 Kd6 33.Rh8 Nc5 34.Rd8 Kc6 35.Re8 Nb3 36.Bb2 b5 37.Re6 Kd5 38.Re8 Nc5 39.Kd1 Nd3 40.Kc2 Ne1 41.Kb3 Ng2 42.Re5 Kc6 43.Bc3 Nh4 44.Re6 Kd7 45.Ra6 Nf3 46.h3 Ke7 47.Kb4 Ne1 48.Kc5 b4! 49.Bf6 Kf7 50.Kc6 Rb8 51.Be5 Rd8 52.Bd6 b3 53.Ra7 Kg8 54.Kc7 Re8 55.Rb7 Nf3 56.Rb3 Nd2 57.Rb5 Kf7 58.Rd5 Nf3 59.Bb4 g5 60.Kd7 Ra8 61.Rf5+= Kg6 62.Rd5 gf4 63.ef4 Ra7 64.Ke6 e3 65.f5 Kg5 66.f6 Kg6 67.Rd3 Ra4 68.f7 Ng5–/+ 69.Kd5 Kf7 70.Be1 Nh3 71.Re3–/+ Ng5 72.Rg3 Kg6 73.Bd2 h6 74.Rg2 Ra2 ½–½. Degterev,Pavel (2460) – Joppich,Ulrich (2510), Germany – Ukraine, 2006.

5.g3 e6=+

6.a3!? +=.

6.c4 dc4 7.Qa4 c6 8.Bg2 =+.

6.c4 dc4 7.Bg2 c6 8.Nc4 Bb4 9.Qb3 a5 (9...Qe7 10.a3 Bc5 11.d4=) 10.a3+= Bc5 11.Qb7 Ra7 12.Qb3 0–0 13.Nc3 Nbd7 (13...Bd4 14.e3 Bc3 15.Qc3+= (worse is 15.dc3 Qd3 16.f3 a4+=)) 14.0–0 Qc7 15.Rac1 Rb8 16.Qc2 Rab7 17.e3 Bg6 18.d3 Be7 19.Na4 h5 (19...Nd5 20.f4=) 20.Qd2 Attacks the isolani on a5 20...Rb3 21.Bc3 (21.Na5!? Rd3 22.Qe1+/–) 21...Ba3= 22.Ra1 (22.Na3!? Ra3 23.Ra1= (worse is 23.Ba5 Qa7–/+)) 22...Bb4+= 23.e4 Nb6 24.Ncb6 Bc3 25.Nc3 Qb6 (25...R8b6?! 26.Ra5 Qd8 27.Rc1=) 26.Na4 Qb4 27.Qb4 (27.Qc2 h4!–/+) 27...ab4 (27...R8b4?! 28.Nc5 Rb2 29.Ra5=) 28.Nc5 Rc3 29.Na6? (29.Rfc1!? Ra3 30.Rab1–/+) 29...Rb5 (29...Rb6 30.Rfb1 b3 31.Ra3–+) 30.Rab1 (30.Rfc1 Rc1 31.Rc1 b3–+) 30...b3 31.Rfd1 b2 32.Bf1 Ne4 33.de4 Be4 34.Bb5 Bb1 (34...Bb1 35.Rb1 Rc1 36.Kg2 Rb1–+) 0–1. cristero (2525) – pierred (2740), net–chess.com, 2013.

6.c4 dc4 7.Bg2 Nbd7 8.Bb7+= Ne5 9.Be5 Nd7 10.Bc6 f6 11.Bc7 Qc7+/– 12.Ba8 Qe5 13.Na3 Be2 14.f4 Bd1 15.fe5 Bb4 16.Nc4 Bc2 17.Rc1 Ke7 18.Rc2 Ra8 19.Rb2 Bc5 20.Rb7 Rc8 21.Ke2+– Bd4 22.ef6 gf6 23.d3 Rc6 24.Rf1 e5 25.Rf5 Ke6 26.Rh5 Ra6 27.a3 Nb6 28.Nb6 Bb6 29.Rhh7 Ra3 30.g4 Ra2 31.Kf3 Rf2 32.Kg3 Rf4 33.Rbd7 Bf2+/– 34.Kg2 Bc5 35.h3 e4? 36.d4+– Bd6 37.Ra7 e3 38.Ra2 Kd5 39.Rh5 Ke4 40.Rf5 Rf5+/– 41.gf5 Bb4 42.Re2 Bd2 43.h4 Kd4 44.h5 Bb4 45.h6 Bf8 46.h7 Bg7 47.Kf3 Ke5 48.Rg2 (48...Kf5 49.Rg7+–) 1–0. De Vita,Gianni – Siraco,Maurizio, Rome op, 1990.

6.c4 Nbd7 7.Qb3 Ne5 8.Be5 Bd6 9.Bb2 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 dc4 13.Qc4 Bg6 14.Nc3 Qa8 15.Bb2 b5 16.Nb5 Qh1 17.Nd6 Kd7 18.Nb5 Qc6 (18...Qh2?? 19.Qc7 Ke8 20.Nd6 Kf8 21.Qd8 Ne8 22.Qe8) 19.Qc6 Kc6 20.Nc3 Rb8 21.b5 Kd7 22.d3 c6 23.bc6 Kc6 24.Bg2 Nd5 25.Bc1 Rb3 26.Kd2 f6 (worse is 26...Rc3 27.Bd5 ed5 28.Kc3+/–) 27.f4 Bf7 (worse is 27...Rc3 28.Bd5 ed5 29.Kc3+/–) 28.Nd5 ed5 29.Kc2 Rb8 30.Bf3 Ra8 31.Bb2 Kc5 32.e3 Be8 33.g4 Ba4 34.Kc3 Bd7 35.h4 h6 36.Kc2 Ba4 37.Kc3 Bb5 38.Kc2 Kd6 39.h5 Ba4 40.Kd2 Bc6 41.Kc2 Ra7 42.Kc1 Bb5 43.Kc2 Ke6 44.Kc3 Ra2 45.Kb3 Ra8 46.Kc2 Ba4 47.Kd2 ½–½. Poleschi,Ricardo D – Rossell,Everest, Eclipse IIIEC2000700B email, 2000. (=1.Nf3 d5 2.b4 Bg4 3.Bb2 Nf6 4.Ne5 Bh5 5.g3 e6)

6.c4 Nbd7 7.Qb3 Be7 8.Bg2 0–0 9.0–0? (better is 9.Nd7 Qd7 10.Nc3+=) 9...Ne5–+ 10.Be5 Be2 11.Rc1 Ng4 12.Bb2 dc4 (12...dc4 13.Rc4 Bc4 14.Qc4 Nf6–+; 12...Bc4?! 13.Qf3 f5 14.Na3 Bb4 15.h3 Ba3 16.Ba3–/+) 0–1. cristero (2360) – pierred (2825), net–chess.com, 2015.

6.Bg2 Bb4–/+ 7.0–0 Nbd7 8.d4 0–0 9.c4 c5 (9...c6 10.a3 Be7 11.Nd2–/+) 10.cd5 (10.Nd7!? Qd7 11.a3=) 10...Ne5–/+ (worse is 10...Nd5 11.Nd7 Qd7 12.a3+=) 11.de5 Nd5 12.h3 c4 13.g4 Bg6 14.e4 (14.Qd4 b5 15.Nc3 Nc3 16.Bc3 Qd4 17.Bd4–+) 14...Nf4 15.Qf3 Nd3 16.Bc3 a5 17.a3 Bc5 (17...Bc3 18.Nc3 Qd4 19.Ne2 Qe5 20.Qe3–+) 18.Nd2 b5 19.h4 (19.a4 b4 20.Nc4 bc3–+) 19...Qh4 0–1. craig4000 – marekt, ChessWorld.net, 2015.

4.h3 Bf3

5.ef3 a6 6.g3 (6.a3 e6=+) 6...e6 7.a3 Bd6 8.f4 0–0 9.Bg2 Nbd7 10.0–0 c5 11.bc5 Bc5 12.d4 Bd6 13.Nd2 b5 14.f5 (14.a4 Qc7–/+) 14...Rc8 (14...ef5!? 15.a4 Qc7–/+) 15.fe6=+ fe6 16.Re1 Nb6 (16...Re8!?=+) 17.Re6= Nc4 (17...Na4 18.Qb1=) 18.Nc4+= bc4 19.c3 (19.Qe2 Rb8 20.Bc3 Qd7+/–) 19...Rb8 (19...Qd7 20.Re3+=) 20.Bc1 Qc7 (20...Qd7 21.Rd6 Qd6 22.Bf4+=) 21.Bg5 Rbe8 (better is 21...Ne4!? 22.Be4 de4+/–) 22.Re8+– Re8? (better is 22...Ne8 23.Bd5 Kh8+–) 23.Bf6 gf6 24.Bd5 Kh8 25.Qa4 Bg3 (25...Rb8 26.Qa6 Kg7+–) 26.Qe8 Kg7 27.Qg8 Kh6 28.Qg3 (28...Qg3 29.fg3+–) 1–0. pumpkin (2255) – nickbarletta (1970), net–chess.com, 2003.

5.ef3 Qd6 6.a3 Nbd7 7.Be2 e6 8.0–0 Qf4 9.Re1 Bd6 10.g3 Qf5 11.Kg2 e5 12.Bd3 Qh5 13.Nc3 0–0 14.Nb5 Ne8 15.g4 Qh4 16.Bf5 Nb6 17.Be5 Be5 18.Re5 Nc4 19.Re1 a6 20.Nd4 Ned6 21.Bd3 Nb2 22.Qe2 Rfe8 23.Qf1 Nd3 24.Qd3 Qh6 25.c3 Qg5 26.Qc2 Re1 27.Re1 a5 28.d3 ab4 29.ab4 h6 30.b5 Ra7 31.Qb3 Qd2 32.b6 cb6 33.Rd1 Qf4 34.Qd5 Ra5 35.Qb3 Ra6 36.Nb5 Ra5 37.Nd6 Qd6 38.d4 Qc7 39.d5 Qd6 40.c4 Rc5 41.Qd3 Qd7 42.d6 Re5 43.Rb1 Qd8 44.Qd4 Re8 45.Rb6 Qd7 46.Qd5 Rb8 47.c5 Qc8 48.d7 Qc7 49.Rb7 Rb7 50.d8Q Kh7 51.c6 1–0. Bonetti,Shane – Tinker (2545), ICC, 2002.

5.ef3 Nbd7 6.f4 (6.Qe2 e6 7.a3 Bd6+=) 6...e6 7.a3 c5 8.b5 Bd6 9.g3 0–0 10.Bg2 Rb8 (10...a6 11.Qe2–/+) 11.0–0+= a6 12.a4 a5 13.d3 b6 (13...Re8 14.Re1=) 14.Nd2 Rc8 (14...Re8 15.Re1=) 15.Nf3 (15.Re1 Qc7=) 15...Qc7 (15...c4 16.dc4 Rc4 17.Nd2=) 16.Re1 (16.c4 Rce8=) 16...Rfd8 (16...c4 17.Be5 Ne8 18.d4=) 17.Be5 (17.Ne5 d4 18.Qe2 Re8=) 17...Be5 (17...d4 18.Qe2=) 18.fe5+= Ne8 19.Qd2 Nf8 Black intends d4 20.Nh2 Ng6 21.f4 (21.Qg5 Ne7=) 21...Ne7 22.g4 (22.c3 c4 23.d4 Qd7=) 22...d4 23.Be4 Nd5 24.Nf1 (24.Nf3 Qe7=) 24...Qe7 (24...Nc3+=) 25.Qg2 (25.Qf2 Nc3+=) 25...Nec7 (25...Nf4!? 26.Qg3 Nd5–/+) 26.Qf3+= Nb4 27.Re2 Ncd5 28.Rg2 (28.Bd5 Rd5 29.f5 c4+=) 28...Qc7 (28...Nc3 29.Rf2–/+) 29.Qg3 (29.Rf2 c4+=) 29...Nc3–/+ 30.Bf3 c4 31.dc4 Qc4 (31...Qc5 32.Kh2+=) 32.Nd2+= Qc7 33.Ne4 Ne4 (33...Ncd5 34.Nd6 Rd6 35.ed6 Qd6 36.Bd5 Nd5 37.f5–/+) 34.Be4+= Qc3 Attacks the backward pawn on c2 35.Ra3 (35.Qc3 dc3 36.Kf2 Rd4+=) 35...Qg3 36.Rag3 (worse is 36.Rgg3 Nc2 37.Rad3 Nb4–/+) 36...Rc4 37.Rd2 (37.Ra3 Nd5 38.Bd5 Rd5+=) 37...Rdc8 (37...Nd5 38.Bd5 Rd5 39.Ra3–/+) 38.Rgg2 (better is 38.Ra3!?+=) 38...Na2–/+ 39.f5 (39.Bc6 Nc3–/+) 39...Nc3 (better is 39...R8c5 40.Bd3 Ra4–+) 40.Bd3? (better is 40.Bc6 Rd8 41.Rgf2–+) 40...Ra4–+ 41.g5 (41.Rdf2 Rc5–+) 41...ef5 42.Bf5 Re8 43.Rg3 Kf8 (43...g6 44.Bd3–+) 44.Bd7 (44.Bh7 g6 45.Rf3 Kg7–+) 44...Re5 45.Rf2 (45.Rg4–+) 45...Ne2 46.Kg2 Ng3 47.Kg3 Rg5 48.Kf4 f6 49.Rd2 Re5 50.Bf5 (50.Bc6 g5 51.Kf3 f5–+) 50...h5 (better is 50...d3 51.Kg3 Rf5 52.Rd3 Rb5 53.c3–+) 51.h4 (51.Bd3 Re3 52.h4 Ra1–+) 51...Kf7 (51...d3 52.Kg3 Rf5 53.Rd3 Rg4 54.Kh3 Rb5 55.Rd8 Ke7 56.Rd1–+) 52.Rg2 (52.Bd3 g5 53.hg5 Rg5–+) 52...Rb4 (52...d3 53.Kg3 Rf5 54.Rd2 dc2 55.Rc2 Rg4 56.Kh3 Rb5 57.Rb2 Rh4 58.Kh4 g5 59.Kh5 Rb2 60.Kg4–+) 53.Bd3 a4 54.Rg1 (54.Rg3 Re1 55.Bg6 Kf8–+) 54...a3 55.Ra1 Ra4 56.Kf3 (56.Ra2 Ke6–+) 56...g5 57.hg5 (57.Ra2 Re3 58.Kf2 g4–+) 57...fg5 58.Rg1 (58.Ra2 Re3 59.Kf2 g4–+) 58...Kf6 59.Rh1 (59.Rf1 Re3 60.Kg2 Ke5–+) 59...Re3 60.Kf2 h4 61.Kg2 (61.Ra1 g4–+) 61...a2 62.Ra1 Ke5 63.Bh7 g4 Black prepares h3 64.Kf1 h3 (64...h3 65.c3 dc3–+) 0–1. Moraes,Maurino A De – Reis,V Lagrange M (1835), Championship Brasileiro Amador, 2011.

5.gf3 e5 6.Be5 Bb4 7.Rg1 +=.

5.ef3 e6

6.a3 Bd6 7.c4 (7.Qe2 0–0=+) 7...0–0 (7...dc4 8.Bc4 0–0 9.0–0=+) 8.cd5 (8.c5 Bf4=+) 8...ed5 9.Nc3 (9.Be2 Nh5=+) 9...a5 10.Be2 (10.b5 Re8 11.Be2 d4–/+) 10...ab4 11.Nb5 (11.ab4 Ra1 12.Qa1 Bb4–/+) 11...ba3–+ 12.Ba3 (12.0–0 Nh5 (12...ab2?! 13.Ra8 Bf4 14.Ra4=+) 13.Ba3 Ba3 14.Ra3 Ra3 15.Na3 Nf4–+) 12...Ba3 13.0–0? (13.Ra3 Ra3 14.Na3–+) 13...Qe7 14.Re1 Nc6 15.Qc2 Bb4 16.Ra8 Ra8 17.Rb1 Qe2 18.Nc7 Rc8 19.Na6 Bd6 (20.Nc7 Rc7–+) 0–1. wlittle (2175) – sbird (1695), net–chess.com, 2005.

6.a3 Nbd7 7.Be2 =+ .

6.b5 Be7 7.c4 0–0 8.Be2 Nbd7 (8...a6 9.Qb3–/+) 9.0–0 Nb6 10.d4 (10.cd5 Nfd5 11.Nc3 Qd6=+) 10...dc4 (10...Nc4 11.Bc4 dc4 12.Qa4–/+) 11.Nd2 (11.a4 a6–/+) 11...Qd5 12.a4 c6 (better is 12...Bb4!? 13.Ne4 a6–/+) 13.a5=+ Nbd7 14.Bc4 Qg5 (14...Qh5 15.bc6 bc6 16.Qc2=) 15.bc6= bc6 16.Ne4 Ne4 (16...Qh4!?=) 17.fe4+= Rab8 18.Bc3 (18.Qc2 c5+=) 18...Nf6 (18...Bb4 19.Bb4 Rb4 20.Ra4=) 19.Bd3 (19.Qc2 c5+=) 19...Rfd8 (19...c5 20.dc5 Bc5 21.Qc1=) 20.Rb1 (20.Qc2 Nh5 21.e5 Kh8=) 20...Rd7?? (better is 20...Rb1 21.Qb1 Nh5=+) 21.Rb8+– (21...Rd8 22.Rd8 Bd8 23.Qc1+–) 1–0. pumpkin (2255) – nickbarletta (2000), net–chess.com, 2003.

6.b5 Be7 7.Be2 0–0 =+.

6.Qe2 Bb4? 7.Qb5 Nbd7 8.Qb4 +–.

6.Qe2 c6 7.b5 Bd6 =+.

6.b5 Bc5

7.Be2 a6 =+.

7.g3 0–0–/+ 8.Bg2 Nbd7 9.0–0 a6 –/+.

7.g3 0–0–/+ 8.Bg2 Nbd7 9.0–0 Nb6 10.a4 c6 0–1. pumpkin (2255) – nbarletta (2045), net–chess.com, 2003.

7.g3 0–0–/+ 8.Bg2 Nbd7 9.0–0 Nb6 10.f4 a6 11.a4 ab5 (11...Nc4 12.Bc3–/+) 12.ab5=+ Ra1 13.Ba1 c6 14.bc6 bc6 15.d4 (15.Re1 Bb4=+) 15...Bd6 16.Nd2 Qe7 17.c4 Nfd7?? (better is 17...Bb4 18.c5 Bd2 19.Qd2 Nc4=+) 18.c5+/– Bc5 (18...Nc5 19.dc5 Bc5 20.Qg4+/–) 19.dc5+– Nc5 20.Qg4 (20.Qc2 Nbd7+–) 20...f5 21.Qe2 Ne4 22.Ne4 fe4 23.Rb1 Nc4 24.Be4 de4?? (better is 24...Na3+/–) 25.Qc4+– Rd8 26.Qc6 Qa3 27.Qe6 Kh8 28.Qe4 Qd6+– 29.Qe5 Qd3 30.Qg7 1–0. pumpkin (2255) – nickbarletta (2000), net–chess.com, 2003.

7.g3 0–0–/+ 8.Bg2 Nbd7 9.Ba3 Ba3 10.Na3 Nb6 11.0–0 Qe7 12.Qc1 c6 13.f4 a6 (13...Rfc8 14.bc6 Rc6 15.Re1–/+) 14.bc6=+ bc6 15.c4 Rac8 (15...c5 16.Re1=+) 16.Rb1 Nc4 (16...Rb8 17.d4=+) 17.Nc4= dc4 18.Qc4 c5 (18...a5 19.Rb2=) 19.Qa6+= Rfd8 20.a4 (20.Rfc1 Rc7+=) 20...Qc7 (20...Qd7!?+=) 21.Rb7+/– Qc6?? (better is 21...Qd6 22.Qd6 Rd6+/–) 22.Bc6+– 1–0. pumpkin (2255) – nbarletta (2045), net–chess.com, 2003.

5.gf3 e6

6.a3 a5 7.Rg1 +=.

6.a3 Bd6 7.Rg1 0–0 (7...Rg8 8.e3+=) 8.f4 (8.e4!? Bh2 9.Rg2+=) 8...Bf4 (8...a5 9.ba5 Bf4 10.e3–/+) 9.e3 Bh6 (9...Bh2!? 10.Rg5 h6–/+) 10.Qf3= Nbd7 11.h4 (11.c4 a5+=) 11...Qe7 (11...a5 12.b5–/+) 12.Nc3 c6 13.Ne2 (13.b5 Rfb8–/+) 13...Kh8 (13...a5 14.ba5 Ra5 15.Nd4–/+) 14.Ng3 Ne8 (14...a5 15.ba5 Ra5 16.c4–/+) 15.Bd3 (15.Qh5 Ndf6 16.Qf3 a5+=) 15...f5–/+ (15...Qh4? 16.Rh1 Qe7 17.Rh6+–) 16.c4 (16.Qh5 Nef6 17.Qf3 b5–/+) 16...Nd6 (16...f4 17.ef4 Bf4 18.Qh5–/+) 17.cd5 (17.c5 Ne4 18.Be2 e5–/+) 17...cd5 (17...f4 18.ef4 ed5 19.Ne2–/+) 18.Nh5 Rf7 19.Rc1 Nb6 20.Qg3 (20.Nf4 Nbc4 21.Bc4 Nc4–/+) 20...Nbc4 21.Bd4 (21.Bc4 Nc4 22.Be5 a5–/+ (22...Na3? 23.Rc7 Nc2 24.Kd1 Qc7 25.Bc7 Nb4 26.Be5+–; 22...Ne5?! 23.Qe5 Qh4 24.Ng3–/+)) 21...b6 (21...Ne4 22.Be4 fe4 23.Rc3–+) 22.Bc4 Nc4 23.d3 (23.Be5 a5–/+ (23...Na3? 24.Rc7 Nc2 25.Kd1 Qc7 26.Bc7 Nb4 27.Be5+–; 23...Ne5?! 24.Qe5 Qh4 25.Ng3–/+)) 23...Na3–+ 24.Qe5 (24.Kd1 Nb5 25.Be5 d4–+) 24...Nb5 (24...Qb4 25.Kf1 Qd2 26.Kg2 Qd3 27.Rc3 Qe4 28.Qe4 fe4 29.Ra3–/+) 25.Bb2 Qb4 26.Ke2 Qd6 27.Qd6 Nd6 28.Rc6 Rd8 29.Be5+= Rfd7 30.Nf6?? gf6 31.Bf6+= Bg7 32.Rg7 Rg7 33.Bd8 Rd7 34.Bf6 Kg8 35.Be5 Nf7 36.Bf6 Nd6 37.Be5 Ne8 38.Re6 Kf7 39.Rh6 0–1. Gonzalez – Villavicencio, 1996.

6.Rg1 Nbd7 +=.

6.Rg1 g6 7.c4 (7.a3 Nbd7+=) 7...Bb4 (7...dc4 8.a3+=) 8.cd5 ed5 9.Qb3 Nc6 10.Qe3 (10.a3 Bc5+=) 10...Kf8 (10...Kd7 11.Qf4 Be7 12.e4–/+) 11.Qh6 (11.Bg2 Kg7+=) 11...Kg8 12.Na3 Bf8 13.Qf4 Bg7 14.d4 h5 15.Nc2 h4 16.e3 Rh5 17.Bd3 Qd7 18.Qh2 Na5 19.Bc3 Nc4 20.Rb1 b5 21.a3 a5 22.Ke2 c6 23.Qg2 Re8 24.Kf1 Bh6 25.Qh1 Bf8 26.Re1 Bd6 (26...a4 27.Qg2–/+) 27.Ra1 (27.Qg2 A) 27...Na3 28.Bg6 Nc2 29.Bh5 Bg3 30.fg3 Ne1 31.Be1+– (31.Ke1?! Qe6 32.gh4 Kf8 33.Qg7 Ke7 34.Bf7 Qf7+/–); B) 27...Kh8–/+) 27...Kh8 28.Qg2 Qb7 29.Be1 (29.e4 Bf4 30.e5 Qb6 31.ef6 Bd2–/+) 29...b4–+ 30.ab4 ab4 31.Bb4 Bb4 32.Rb1 Nd2 33.Ke2 Nb1 34.Rb1 Qe7 35.Rb4 Ra8 36.Qh2 Kg7 37.Rb6 c5 38.dc5 Qc5 39.Rb7 d4! 40.Qf4 (40.Nd4 Ra2 Pinning; 40.ed4 Re8 Double attack) 40...de3–+ 41.Qc4 Qd5 42.Qd5 Rd5 43.fe3 Ra2 44.Rb4 Nd7 (44...Rg5 45.Rh4 Rg2 46.Kd1–+) 45.Rd4 Rd4 46.ed4 Nb6 47.Kd1 Nd5 48.Bc4 Ra5 49.Bf1 (49.Kd2 Nf4–+) 49...Nf4 (49...Kf6 50.Kd2–+) 50.Kd2 Ra2 51.Kc1 f5 52.Kb1 Ra8 53.Kc1 Kf6 0–1. Sting SF 4?8?4 64_bit – Elektro 1?2 64_bit, CCRL, 2015.

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  • 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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