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1.b4 e6 2.Bb2 Nf6 3.b5

(...)

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

3...Bd6 4.e3 0–0 5.c4 c6 6.a4 cb5 7.ab5 Be7 8.Nf3 b6 9.Be2 Bb7 10.0–0 d5 11.d4 dc4 12.Bc4 Nd5 13.Nbd2 Nd7 14.Qb3 N7f6 15.Ba3 Ba3 16.Ra3 a6 17.ba6+– Bc6 18.Ne5 Qc7 19.Nc6 Qc6 20.Raa1 Rfb8 21.Bb5 Qc7 22.Rfc1 Qd6? 23.Nc4 Qe7 24.Ne5 Ne4 25.Nc6 Qf6 26.Nb8 Qf2 27.Kh1 Ne3 28.Rc8 1–0. carocan (1805) – adam1616, kurnik, 2011.

3…h5 4.e3 h4 5.Nf3 d6 6.c4 Bd7 7.Nc3 a6 8.a4 Be7 9.Bd3 Kf8 10.0–0 h3 11.g3 Bc8 12.Ng5 b6 13.Be2 Bb7 14.Bf3 d5 15.d4 Nbd7 16.Re1 a5 17.Qb3 dc4 18.Qc4 Nd5 19.Nce4 Bg5 20.Ba3? Be7–+ 21.Ng5? Kg8 22.Ne4 Ba3 23.Ra3 Rc8 24.Rc1 N7f6 25.Nf6 Qf6 26.Bh1 Rh5 27.e4 Qe7 28.ed5?? Qa3 29.d6 Bh1 30.d7 Rf8 31.Kh1 Qf3 (31...Qf3 32.Kg1 Qg2) 0–1. elsh1403 – trituza (1610), kurnik, 2011.

3…h6 4.e3 d6 5.Nf3 a6 6.c4 Nbd7 7.a4 ab5 8.cb5 Rg8 9.Nc3 Nc5 10.Be2 Nfd7?? 11.0–0?? b6 12.d4 Nb7 13.Qb3 g5 14.Bc4 Na5 15.Qa2 Bg7 16.d5 e5 17.Bd3 Nc5 18.Bc2 g4 19.Nd2 h5 20.Nce4 Ne4 21.Be4 f5 22.Bc2 Qf6 23.f4 Qg6 24.fe5 Be5 25.Be5 de5 26.Qb2 Qf6? 27.Ne4 Qg7 28.Ng3+– Nc4 29.Qc3 Nd6 30.Nh5 Qg6 31.Ng3 Qg7?? 32.Bf5 Nf5 33.Nf5 Bf5 34.Rf5 g3 35.Qe5 Qe5 36.Re5 Kd8 37.h3 Kc8 38.Re7 Kd8 39.Rf7 Rc8 40.e4 Ke8 41.Rf3 Rg7 42.a5 ba5 43.Ra5 Rb8 44.e5 Rb6 45.Ra8 Ke7 46.Ra7 Kd8 47.d6 Rb5 48.Rf8 Kd7 49.Rc7 Ke6 50.Rg7 Ke5 51.Rg3 Kd5 52.d7 Rb7 53.d8Q Kc4 54.Qc8 Rc7 55.Qc7 Kd4 (55...Kd5 56.Rd3 Ke4 57.Qc4 Ke5 58.Qd5). elsh1403 – aammff, kurnik, 2011.

3…c6

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

4.e3 Be7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 Be7 4.e3 c6).

3...Nd5

4.e4 Nf4 5.Qg4 Ng6 6.Nf3 d6 7.e5 de5 8.Ne5 Qf6 9.d4 Bb4=+ 10.Nc3 Ne5 11.de5 Qe5 12.Qe2?? Bc3–+ 13.Bc3 Qc3 (13...Qc3 14.Qd2 Qa1 15.Qd1 Qa2–+) 0–1. WolverLini – braken, ChessWorld.net, 2011.

4.Nf3 c6 5.a4 c5 6.c4 Nb6 7.d3 a6? 8.a5 +–. Fritz 8 – NN, 2003.

3...a5

4.a4 Bb4 (4...d5 5.Nf3+=) 5.c3 (5.e4 d5 6.e5 Ne4=) 5...Be7+= 6.e3 (6.Nf3 0–0=) 6...0–0 (6...d5 7.Nf3+=) 7.c4 (7.Nf3 d5=) 7...d5 (7...d6 8.d4=) 8.Bf6 (8.Nf3 Nbd7=) 8...Bf6+= (worse is 8...gf6 9.Nc3+=) 9.d4 dc4 (9...c5 10.bc6 dc4 11.cb7 Bb7 12.Nf3=) 10.Bc4 (10.Nf3 c5+=) 10...c6 (10...c5 11.Ne2+=) 11.Nc3 (11.Nf3 c5=) 11...c5 12.Nf3 (12.Ne4 cd4 13.Nf6 Qf6 14.Qd4 Qe7=) 12...Re8 (12...cd4 13.ed4 b6 14.Ne4=) 13.Ne5 (better is 13.Ne4!?+=) 13...cd4+= 14.ed4 Qc7 15.Qe2 (15.b6 Qb6 16.Rb1 Qc7+=) 15...Nd7 16.Nf7? (better is 16.Ne4 Be5 17.de5 Ne5 18.Rc1+=) 16...Bd4–+ 17.Qf3?? (17.Nh6 gh6 18.Qg4 Bg7 19.Rc1–+) 17...Qc4 18.Ng5 Bc3 (18...Bc3 19.Qc3 Qc3 20.Ke2 Qe5 21.Ne4 Qe4 22.Kf1 Qd4–+) 0–1. Hey,Roland – Lipovan, corr ICCF EU–II–730, 1980.

4.a4 b6 5.Nf3 Bb7 6.c4 d6 7.d4 Be7 8.Nc3 d5 9.cd5 Nd5 10.Nd5 ed5 11.Rc1 0–0 12.Ne5 Bb4 13.Bc3 c5? 14.dc5 bc5= 15.e3 Qg5 16.h4?? Bc3 17.Rc3 Qe5 18.Qb3? c4 19.Qc2 d4 20.Ra3 de3 21.Re3 Qa1 22.Ke2 Nd7 23.Re7 Rfe8 24.Re8 Re8 25.Kd2 Qd4 26.Kc1 Re1 (26...Re1 27.Qd1 Rd1 28.Kc2 Qd2) 0–1. iczker – mikey4, kurnik, 2011.

4.a4 c5 5.e3 b6 6.Nf3 d5 7.c4 Bb7 8.Be2 Bd6 9.0–0 0–0 10.d4 dc4 11.Bc4 cd4 12.Nd4 Bc5 13.Nd2+= Nd5 14.Qb3 Nb4 15.Rfd1 Qg5 16.N2f3 Qg6 17.Ne1 Nd7?? 18.Rac1?? Ne5 19.Ba3 Nc4 20.Rc4? Bd5–+ 21.Bb4 ab4 22.Nd3?? Ra4! 23.Nc5?? bc5 24.Rc5 Bb3 (24...Bb3 25.Nb3 Ra2–+; 24...Qg2) 0–1. carocan (1750) – justuletzus (1715), kurnik, 2011.

4.c4 b6 5.Nf3 Be7 6.g3 Bb7 7.Bg2 0–0 8.0–0 c5 9.bc6 (9.Qc2 d5=) 9...dc6 10.Nc3 Qc7 11.Qb3 Nbd7 (11...e5 12.d4 ed4 13.Nd4=) 12.Rfc1 (12.d4 Rad8=) 12...Rfc8 (12...e5 13.d4=) 13.Rab1 Rab8 (13...e5 14.Na4=) 14.d4 Qd8 15.e4 (15.a3 c5 16.Rd1 cd4 17.Rd4 Qc7=) 15...Ba6 (15...b5!? 16.cb5 a4 17.Na4 cb5 18.Rc8 Rc8=) 16.e5+= Ne8 17.Ne4 Nc7 (17...Bb7 18.Rd1+=) 18.Qa4 Ne8+= 19.Qc2 Nc7 20.Qd2 b5 (20...Qf8 21.Qd3+=) 21.c5 (21.Qa5 Ra8 22.Nd6 Rcb8+/–) 21...Nd5 22.Nd6 Bd6 23.ed6 b4 24.Ne5 N7f6 25.g4 (25.Re1 a4+=) 25...Rb7 26.f4 Nd7 (26...a4 27.Re1+=) 27.f5 Ne5 28.de5 Bb5 (28...Qh4 29.Qd4+=) 29.Re1 (29.f6 Qf8+/–) 29...Rcb8 (29...Qh4 30.Re4+/–) 30.f6 g6 (30...Qf8 31.Bd4+/–) 31.h4 (31.Bd4 Qf8+/–) 31...Kh8 32.Be4 Bc4 33.Ra1 a4 (33...b3 34.ab3 Rb3 35.Bd4+/–) 34.Qc1 Bb5 35.Kg2 (35.Bd4 Qe8+/–) 35...Qd7? (35...Qf8 36.Bd5 cd5 37.c6+–) 36.h5 (36.Qh6!? Rg8 37.h5 a3+–) 36...Rg8 37.Qh6 (37.Qh6 Nf6 38.hg6 (38.ef6 e5 39.hg6 Qg4 40.Kf2 Rg6 41.Bg6 Qf3 42.Kf3 e4 43.Ke3 fg6 44.f7) 38...Rg6 39.Bg6 fg6 40.ef6+–) 1–0. Ree,Hans – Dahlin,Gunnar, WchT U26, 1964.

4.c4 c5 5.e3 b6 6.Nf3 Bb7 7.Be2 d6 8.0–0 Qc7 9.d4 Nbd7 10.Nbd2 Be7 11.Rc1 0–0–0 12.e4 Ne4=+ 13.Ne4 Be4 14.Nd2 Bb7 15.Bf3 e5 16.Bb7 Kb7 17.Qf3 Kb8 18.dc5 Nc5 19.Qf7 Nd3 20.Rc2 Nb2 21.Rb2 Rdf8 22.Qd5 Qb7 23.Ne4 Qd5 24.cd5 Rf4 25.f3 Rhf8 26.Rc2+/– g5 27.h3 h5 28.Rc6 Kb7 29.Rfc1+– R4f7 30.Nd6 Bd6 31.Rd6 g4 32.hg4 hg4 33.Rcc6 gf3 34.Rb6 Ka7 35.Ra6 Kb7 36.Rdb6 Kc7? 37.Rc6 Kb7 38.gf3 Rf3 39.Rc2 e4 40.Re6 e3 41.Re2 Rg8 42.Kh2+/– Rf2 43.Rf2 ef2 44.Rf6 Rd8 45.Rf2 Rd5 46.a4 Rd4 47.Ra2 Rg4 48.Kh3 Rg7 49.Rc2 Rf7 50.Kg3 Rd7 51.Rc4 Kb6 52.Kf3 Rd3 53.Ke4 Rb3 54.Rc6 Kb7 55.Kd5 Rb4 56.Rc4 Kb6?? 57.Rb4 ab4 58.Kc4 Ka5 59.Kb3 Kb6 60.Kb4 Kb7 61.a5 Ka7 62.Kc5 Kb7 63.a6 Ka7 64.Kc6 Ka8 65.b6+– Kb8 66.b7 Ka7 67.Kc7 Ka6 68.b8Q (68.b8Q Ka5 69.Qb3 Ka6 70.Qb6) 1–0. carocan (1825) – mrfik132 (1920), kurnik, 2011.

4.e3 b6 5.Be2 Bb7 6.Bf3 d5 7.c4 c6 8.cd5 cd5 9.Ne2 Nbd7 10.d4 Bd6 11.Ba3 Ba3 12.Na3 0–0 13.0–0 Rc8 14.Rc1 Rc1 15.Qc1 Qe7 16.Qb2 Rc8 17.Rc1 Rc1 18.Qc1 Qb4 19.Qc3 Qc3 20.Nc3 Kf8 21.Na4 Ne8 22.Kf1 Nd6 23.Ke1 Ke7 24.Be2 Kd8 25.Bd3 Ke7 26.h4 (worse is 26.Bh7 g6–/+) 26...f5 27.g3 Nf6? (27...Kf6 28.Ke2=) 28.Nc3?? (better is 28.Nb6!? Nde4 29.Na4+–) 28...Bc8 29.Ne2 Bd7 30.Nf4 Nf7 31.Be2 Kd6 32.Nd3 Bc8 (32...Ne4 33.Nc1=) 33.Nb2 Kc7 34.Nc2 Nd6 35.a4 Nf7 36.Nd3 Kd6 37.Kd2 ½–½. Bulcourf,Carlos (2270) – Castillo,Santiago (2085), Buenos Aires–chT Intercoop, 2004.

4.Nf3 (--> 1.b4 a5 2.b5 Nf6 3.Nf3 e6 4.Bb2).

4.f4 d5 5.Nf3 c5 6.e3 Be7 7.c4 0–0 8.Qc2 h6 9.Rg1 Nh7 (9...Nbd7 10.Nc3+=) 10.g4 Bf6 (10...Bh4!? 11.Kd1 Bf2+=) 11.Bd3 g6 12.Bg6 (better is 12.Bf6!? Qf6 13.Nc3+=) 12...fg6+= 13.Qg6 Kh8 14.Ne5 (better is 14.Bf6 Rf6 15.Qh5=) 14...Qe7?? (better is 14...Nd7 15.Qh6 Ne5 16.Be5 Be5 17.fe5 Qg5 (worse is 17...dc4 18.g5 Qd7 19.g6+–) 18.Qg5 Ng5+=) 15.g5 Bg7?? (15...hg5 16.fg5 Bg7+– (16...Ng5 17.Rg5 Qg7 18.Qh5 Kg8 19.Rg7 Bg7 20.Qg5+–)) 16.Qh6 (better is 16.gh6 Bf6 17.Qg7 Qg7 18.hg7 Kg8 19.gf8R Kf8 20.d3+–) 16...Bh6 (16...Kg8 17.Ng6 Qf7 18.Qg7 Qg7 19.Bg7 Kg7 20.Nf8 Nf8+–) 17.Nf7 Kg8 18.Nh6# 1–0. Krantz,Kjell – Schroeder,Dick, Sweden, 1964.

4.g3 a4 5.Na3 d5 6.Bg2 Bc5 7.Nf3 Qe7 8.Qc1 e5 9.0–0 h5 (9...e4 10.Nd4+=) 10.d4 ed4 11.Qg5 (better is 11.h4+=) 11...Ba3?? (11...0–0 12.Qc1 Bf5+= (12...Qe2? 13.Re1 d3 14.Re2 de2 15.c4+–)) 12.Ba3+/– Qa3 13.Qg7 Qf8 (13...Rh7 14.Qf6 Qe7 15.Qe7 Ke7 16.Nd4+/–) 14.Qf6 c5 15.bc6! bc6 (15...bc6 16.Qe5 Double attack; 15...Nc6 16.Nd4 Decoy) 16.Nd4 Rh6 17.Qe5 Qe7 18.Qe7 Ke7 19.c4! dc4 20.Rac1 (20.Rfc1 Be6+/–) 20...Be6 21.Ne6 (21.Nc6?! Nc6 22.Bc6 Rc8 23.Ba4 c3+=) 21...Re6 22.e3 Nd7 23.Rc4 Ne5 24.Rc5 (24.Rh4 a3+/–) 24...Kd6 (24...h4!?+/–) 25.Rfc1+– Ra6 (25...Ra7 26.Be4+– (26.Bc6?! Rc7=)) 26.f4 (26.f4 Nd3 27.Rc6 Rc6 28.Rc6 Ke7 29.Rc3+–) 1–0. Cottarelli,Franco – Scalisi,Salvatore, corr, 1969.

4.c4 d5

5.e3 c5 6.a4 Nbd7 7.Nf3 Be7 8.Be2 0–0 9.0–0 Nb6 10.d3 g6 (10...Ng4 11.Nbd2+=) 11.Nbd2+/– Nh5 12.Qc2 f5 (12...f5 13.d4 cd4 14.Bd4 Rb8+/–). Grund,Karl – Beran, corr, 1967.

5.e3 c5 6.d4 b6 7.Nf3 Bb7 8.Be2 Nbd7 9.a4 cd4 10.Bd4 Bb4 11.Bc3 Bc3 12.Nc3 Rc8 13.0–0 0–0 14.Qd4 Qc7 15.Rfc1 dc4 16.Nd2 Rfd8 17.Qc4 (worse is 17.Nc4 Nc5 18.Qf4 Qf4 19.ef4 Nb3–+; 17.Bc4?? Nc5 18.Qh4 Rd2–+) 17...Qe5 18.Qd4 Qg5 19.Nde4 Qg6 20.Bf3 Nc5 21.Nf6 gf6 (21...Qf6?! 22.Qf6 gf6 23.Bb7 Nb7 24.Ne4 Rc1 25.Rc1=) 22.Qg4 Qg4 23.Bg4 Nb3 24.Rab1 Nc1 25.Rc1 Rd3 26.Ne2 Rc1 27.Nc1 Ra3 (27...Ra3 28.h3 Ra1–+) 0–1. Schwichtenberg,Juergen – Robitsch,Hermann (2090), Wch Seniors Gladenbach, 1999.

5.e3 Nbd7 6.Nf3 =.

5.e3 Be7 6.Nf3 0–0 7.d4 dc4 (7...Bd7 8.Ba3=) 8.Bc4 Nbd7 ½–½. Bartle,Georg (1680) – Filzmeier,Bruno (1780), Wch Seniors, 2003.

4.e3 a4

5.c4 a3 6.Bc3 =.

5.c4 c5 6.Nc3 (6.a3 d5=) 6...a3 7.Bc1 d5 (7...Be7 8.Nf3=) 8.Qb3 (8.Nf3 Nbd7=) 8...Ne4 (8...d4!? 9.Nd1 e5=) 9.Ne4+= (worse is 9.cd5 Qf6 10.Nf3 ed5+=) 9...de4 10.Ba3 Nd7 (10...Bd6 11.Bb2+=) 11.Nh3 (11.Bb2 e5+/–) 11...Ne5 (11...Nb6 12.Bb2+=) 12.Nf4 b6 (12...Bd6 13.Bb2+=) 13.Bb2 f6 (13...Qc7 14.d3+/–) 14.Be2 (14.Qc2 Bd6+/–) 14...Bd6+/– 15.0–0 f5 (15...0–0 16.Rfd1+/–) 16.Bh5 (16.d3 ed3 17.Nd3 Ng6+–) 16...g6+/– 17.Bg6?? (better is 17.Be2+/–) 17...hg6–+ 18.Ng6?? (better is 18.Rfd1 Qg5 19.h3–+) 18...Nf3! 19.gf3 Qg5 A double attack 20.Kh1 Rh2 0–1. Kurschatke,G – Bergmannshoff,P, 1980.

5.Nf3 a3 6.Bd4 c5 7.Be5 d6 8.Bc3 Bd7 9.Qc1 Qb6 10.Na3 Nd5 11.Rb1 Nc3=+ 12.dc3 Qa5 13.Qb2?? Qa3–+ 14.c4 Qa2 15.Be2 Qb2 16.Rb2 Ra1 17.Bd1 Be7 18.0–0 Bf6 19.Rb3 0–0 20.Be2 Rf1 21.Kf1 Bc8 22.Rd3 Be7 23.Nd2 Nd7 24.f4 Nb6 25.Ra3 d5 26.cd5 Nd5 27.c4 Nb4 28.Ne4 Rd8 29.Ra8 b6 30.Nc3 Bb7 31.Ra7 Ba8?? 32.Na4?? Rb8?? 33.Re7+/– Nc2 34.Bd3?? Ne3=+ 35.Kf2 Ng2 36.f5 Nf4 37.Bf1 ef5 38.Kg3 Ne6 39.Bh3? g6 40.Rd7? Nd4 41.Kf4? Be4 42.Ke5 Bd3 43.Nb2 Be2 44.Bg2 Nf3 45.Kf6? Nh4 46.Bd5 –/+. elsh1403 (1635) – pk1965 (1605), kurnik, 2011.

5.Nf3 d5 6.Be2 a3 7.Bc3 Ne4 8.0–0 Nc3 9.Nc3 Be7 10.d4 0–0 11.Bd3 c5 12.dc5 Bc5 13.Ne2 Nd7 14.c4 Nf6 15.Qb3 b6 16.Rfd1 Bb7 17.Ne5 Qc7 18.Nf3 Rad8 19.Ned4? e5–+ 20.Nc6 Bc6 21.bc6 e4 22.cd5 ef3 23.gf3 Nd5 24.Bh7 Kh7 25.Rd5 g6 26.Rad1 Rd5 27.Qd5 Rc8 28.h4 Kg7 29.h5 Qc6 30.Qe5 Qf6?? 31.f4 Qe5–+ 32.fe5 gh5 33.Rd7 Re8 34.f4 Be3 35.Kg2 Bc5 36.Kf3 Kg6 37.Ke4 h4 38.f5 Kg5 39.Rf7 h3 40.Rg7–/+ Kh4 41.Kf4= Rh8 42.Rg4 Kh5 43.Rg5?? Kh6–+ 44.Rg6 Kh7 45.e6 h2 46.f6 h1Q 47.Rg7–+ Kh6 48.e7 Bd6 (48...Bd6 49.Ke3 Qe1 50.Kf3 Rc8 51.Rh7 Kh7 52.f7 Rc3 53.Kg2 Qd2 54.Kf1 Rc1) 0–1. elsh1403 – natuska80wet (1855), kurnik, 2011.

4.e3 c5

5.c4 b6 6.Nf3 Bb7 7.Be2 d5 8.cd5 Bd5 9.Nc3 Bb7 10.d4 (10.Rc1 Bd6=) 10...cd4+= 11.Qd4 Qd4 12.Nd4 Nbd7 (12...Bg2!? 13.Rg1 Bb7+=) 13.0–0 g6 (13...Nd5 14.Rac1=) 14.Bf3 (14.Nc6 Bg7+/–) 14...Bf3= 15.Nf3 Bg7 16.Ne2 0–0 17.Rac1 Nc5 18.Rfd1 Rfd8 19.Ned4 Nd5 20.Rc2 (20.Ba1 Rd7=) 20...Ne7 (better is 20...Nb4!? 21.Re2 Na2–+) 21.Rdc1 (21.Rcd2 Rdc8 22.Ba3=) 21...Rac8 (better is 21...Nd3 22.Rb1 Nb2 23.Rcb2 Nf5–/+) 22.Nb3?? (better is 22.Ba3+/–) 22...Bb2 (22...Nb3 23.Rc8 Nc8 24.Rb1–+) 23.Rb2 Nb3 24.Rc8 Rc8 (24...Rc8 25.g3 Rc1 26.Kg2 Nc5–+) 0–1. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

5.c4 d5 6.Bf6 (6.Nf3 Bd6=) 6...Qf6+= 7.Nc3 Qd8 (7...dc4 8.Bc4 Qg6 9.Qf3=) 8.Nf3 Be7 9.Qc2 (9.d4 cd4 10.Nd4 e5=) 9...dc4 (9...d4 10.Ne4+=) 10.Bc4= Nd7 (10...0–0 11.0–0=) 11.0–0 Qc7 12.Rac1 (12.Rfc1 0–0+=) 12...0–0 13.Ne4 a4 (13...Ne5 14.Ne5 Qe5 15.d3=) 14.d4+= cd4 15.ed4 (15.Nd4 Ne5+=) 15...Nf6 (15...Qf4 16.d5 ed5 17.Bd5=) 16.Rfd1 (16.Nf6 Bf6 17.Qh7 Kh7 18.Bd3 g6 19.Rc7 Bd8+/–) 16...Qf4 17.Neg5 (17.Bd3 Nd5=) 17...h6 18.g3 Qc7 19.Ne4 b6 (19...Ne4 20.Qe4 Qd6 21.d5+=) 20.Ne5 (20.Nf6 Bf6 21.Qh7 Kh7 22.Bd3 g6 23.Rc7 Bd8=) 20...Bb7+= 21.Nf6 Bf6 22.Nc6 (22.Qh7 Kh7 23.Bd3 Kg8 24.Rc7 Bd5=) 22...Bg5 (22...Bc6!? 23.bc6 Qc6+=) 23.f4= Bf6 (23...Bc6 24.bc6 Bf6 25.Qe4=) 24.d5+= ed5 25.Bd5 a3 26.Qf5 Bc8 27.Qe4 (better is 27.Qg6+=) 27...Bg4+– 28.Ne5 Be5 29.fe5 (better is 29.Rc7 Bc7 30.Ba8 Bd1 31.Qc6+–) 29...Qd7 30.e6 (30.Ba8?! Bd1 31.Bc6 Qg4+=) 30...Be6 31.Ba8 Qb5 32.Bd5 Bh3 (32...Bd5 33.Rd5 Qb2 34.Rc2 Qb1 35.Kg2+–) 33.Qc4 (33.Rc7 Bd7+–) 33...Qb2 34.Rc2 Qe5 35.Qf4 (35.Qf4 Qf4 36.gf4+–; 35.Bf7!? Kh7+–) 1–0. Bulcourf,Carlos (2205) – Devcic,Marcos (2365), Buenos Aires Konex, 1991.

3...Bb4

4.a3 Bc5 5.Nf3 d5 6.e3 Bd7 7.Nc3+= Ng4 8.Bd3 a6 9.h3 Nf6 10.a4 Qe7 11.0–0 e5 12.e4+– de4 13.Ne4 Ne4 14.Be4 c6? 15.Ne5 cb5 16.Nd7 Nd7 17.Bg7 Rg8 18.Bb7 Rb8 19.Re1 Bf2 20.Kf2 Ne5 21.Re5 Rg7 22.Bc6 Kd8 23.Re7 Ke7 24.Qe2 Kf8 25.Re1 Rg6 26.Qe5 Re6 27.Qb8 (27.Qb8 Kg7 28.Re6 fe6 29.Qe8 b4 30.Qe6 h6 31.Qe7 Kg8 32.Bd5 Kh8 33.Qf7 b3 34.Qg8#) 1–0. pereira – lerving, internet, 2009.

4.c3 Bd6 5.a3 Bf4 6.e3 Bg5 7.d4 Ne4 8.Nd2 Nd2 9.Qd2 d5 10.c4 0–0 11.Bd3 f5 12.Qc2 c6 13.Nf3 Bd7 14.bc6 Nc6 15.c5 Qf6 16.0–0 Bh4 17.Nh4 Qh4 18.Bb5 Nd4=+ 19.ed4 Bb5 20.Rfe1 Rf6 21.Bc3 Qf4 22.a4 Bc4 23.Qb2 Rb8 24.Qb4 Bd3 25.Ra2 b6 26.cb6 Rb6 27.Qc5 Rf8 28.Rb2 Rfb8 29.Rb6+= Rb6 30.Rd1?? Be2 31.Re1 Qe4 32.Qc8 Kf7 33.Qc7 Kf8 34.Qa7 Rb1 35.Qa8 Kf7 36.Qa7 Kf6 37.Qc5 f4 38.h3 Re1 39.Be1 f3 40.g3 g5 41.Kh2 h5?? 42.Qf8+– Kg6 43.Qg8 Kf6 44.Qh8 Kg6 45.Qe5?? Qe5–/+ 46.de5 d4 47.g4= h4 48.Bb4 Bc4 49.Kg1 Be2 50.Bc5+/– d3 51.Be3 Kh6 52.Kh1 Bf1 53.Kh2 Bg2?? 54.Bd2+– Kg6 55.Bc3 Kh7?? 56.a5+– Kh6 57.a6 Kg6 58.a7 d2 59.Bd2 Kh7 1–0. Bonetti,Shane – Sigma 4, 2000.

4.c4 d5 5.a3 Ba5 6.Qa4 c6 7.Nf3 0–0 8.Bc3 Bb6 9.e3 Bd7 10.d4 cb5 11.cb5 Qc7 12.Bd3 a6 13.0–0 Bb5 14.Bb5 ab5 15.Qb5 Rc8 16.Nbd2 Qc3 17.Qb6 Nbd7 18.Qb4 b6 19.Rfd1 Rc7 20.Rdb1 Rac8 21.Ne1 Ne8 22.Nb3 Rc4 23.Qc3 Rc3 24.Rc1 Nd6 25.Rc3 Rc3 ½–½. Fritz 4 – Fritz 4, 2000.

4.e3= 0–0 5.Nf3 d5 6.Be2 c5 7.bc6 Nc6=+ 8.0–0 Bd6 9.d4 Qc7 10.c4 dc4 11.Bc4= Bd7 12.Nc3 Ng4 13.g3 h5 14.Nb5+= Qb8 15.Nd6 Qd6 16.d5 ed5 17.Bd5 h4?? 18.Bf7!!+– (18.Bf7 Rf7 19.Qd6 hg3 20.Qg3+–) 1–0. Friberger,Torbjorn – Blain,Jean Baptiste, corr FRA–SWE team m, 1994.

4.e3 c6 5.f4 c5 6.Nf3= d6 7.Be2 Nbd7 8.0–0 d5 9.c4 0–0 10.Qc2 Ne4 11.a3 Ba5 12.d4 cd4 13.Nd4 Ndc5 14.Bf3 Qh4 15.a4 Bc7?? 16.cd5+– e5 17.Be4 ed4 18.Qc5 Bb6 19.Qc2 de3 20.Kh1 Bg4 21.Nc3 f5 22.Bf3 Rf6 23.Bg4 fg4 24.g3 Qh3 25.Ne4 Rh6 26.d6 Rf8 27.Rac1 Qh5 28.Be5 Ba5 29.Ng5 Bd2 30.Qb3 (30…Re6 31.Qe6 Qf7 32.Nf7 e2 33.Nh6 Kh8 34.Qg8 Rg8 35.Nf7#) 1–0. Nilsson,Nils Roland – Hjelte,Nils, corr SSKK 2–756, 1992.

4.a3 Ba5

5.Nc3 0–0 6.g3 c6 7.Bg2 d5 8.e3 Bd7 9.a4 Qc7 10.Nf3 Bc3 11.Bc3= Ne4 12.Bb4 c5 13.Ba3 Qa5 14.Bb2 Bb5? 15.ab5+– Qb5 16.Ba3 Nc6+/– 17.Bf1 Qb6 18.c3 a6 19.Be2 Qc7 20.0–0 b6 21.Qc2 Nd6 22.Bd3 h6 23.Bh7 Kh8+= 24.Bd3 Rfe8 25.Rfb1+/– c4 26.Bd6 Qd6 27.Be2 b5 28.Nd4 Ne7 29.Ra5 e5+= 30.Nf5 Nf5 31.Qf5+/– g6 32.Qh3 Kg7 33.Rba1 Ra7 34.Rb5!+– ab5 35.Ra7 Rd8 36.Bg4 h5? 37.Be2 b4 38.cb4 Qb4 39.g4 Qd2 40.Qf3 Rf8 41.gh5 c3?? 42.hg6 c2 43.Rf7 Kg6 44.Qf6# (44.Qh5#) 1–0. mic (2120) – jjefferson (2120), net–chess.com, 2008.

5.c4 0–0 6.Qa4 Bb6 7.e3= d6 8.d4 Bd7 9.Nd2 c6 10.Bd3 d5 11.cd5 cb5 12.Bb5 Bb5 13.Qb5 a6 14.Qb3 Qd5 15.Qd5 Nd5 16.Rc1 Nd7 17.Ne2 Ba5 18.e4+= Bd2 19.Kd2 N5f6 20.f3 b5 21.Rc7 Nb6= 22.Rb1 Rac8 23.Rb7 Nc4 24.Ke1 Rb8 25.Ra7 b4 26.a4 Rb6 27.Rc7 Nb2 28.Rb2 b3 29.Rc3 Rfb8 30.Nc1 g6 31.Rcb3 Rb3+/– 32.Rb3 Rc8 33.Ne2 Rc4+/– 34.a5 Ra4 35.Rb6 Ra5+= 36.d5 Nd7 37.Rb7 Nc5 38.Rb8 Kg7 39.d6 Ra2 40.Kf2+= Rd2 41.Rb6 e5 42.h3 Rc2 43.Ke3 f5 44.g4 f4= 45.Nf4 Rc3 46.Kd2 ef4 47.Kc3 Na4 48.Kc4 Nb6 49.Kc5 Nd7 50.Kc6 Nf8 51.d7 Ne6 52.h4 Kf7 53.Kd6 a5 54.Kd5 a4 55.Kc4 Ke7 56.Kb4 Nd4 57.Ka4 Nf3 58.Kb4 Ng1 59.Kc5 f3 60.Kc6 Kd8 61.h5 f2 62.hg6 hg6 63.e5 f1Q 64.Kd6 Qd1 65.Kc5 Kd7 66.g5 Ne2 67.Kb5 Qb3 68.Kc5 Nf4 69.Kd4 Ne6 70.Ke4 Qg3 71.Kd5 Qd3# 0–1. Caissa – adro, internet, 2001.

5.c4 0–0 6.Nf3 c6 7.e3 d5 8.Qc2 Re8 9.Be2 Nbd7 10.0–0 e5 11.Nc3 Bc7 12.bc6 bc6 13.cd5 cd5 14.Nb5 Bb6 15.Nd6 Re6 16.Qc6 Rb8 17.Rac1 Ne8 18.Qc8 Rc8 19.Rc8 Rd6 20.Rd8 Bd8 21.Ne5 Bf6 22.d4 Be5 23.de5 Rb6 24.Bd4 1–0. Schirmer – Kurzynsky, corr 1984–85.

5.c4 d5 6.e3 0–0 7.Qf3 =.

5.c4 d5 6.e3 0–0 7.Nf3 Nbd7 8.a4 Nc5 9.Be2 b6 10.0–0 Bb7 11.d4 Nce4 12.Nfd2 c5 13.Ne4 Ne4 14.f3 Nf6 15.Bc3 Bc3 16.Nc3 cd4 17.Qd4 Re8 18.c5 e5 19.Qb4 bc5 20.Qc5 d4 21.Rfd1 dc3 22.Rd8 Red8 23.Qc3 e4 24.Rd1 Rd1 25.Bd1 Nd5 26.Qd4 a6 27.Be2 ab5 28.Bb5 ef3 29.gf3 Nc7 30.Qd7 Rc8 31.a5 Nb5 32.Qb7 Nd6 33.Qd7 1–0. Trokenheim – Gibbs, itsyourturn.com, 2000.

5.c4 d5 6.e3 c5 7.Nf3= 0–0 8.Be2 Nbd7 9.0–0 b6 10.d4 Bb7 11.Nbd2 Bd2 12.Nd2 Rc8 13.Rc1 Ne4 14.Ne4+/– de4 15.Qc2 Qg5 16.Rfd1 Rfd8 17.Qa4 Rc7 18.dc5+/– Qc5 19.Rd2 Rdc8 20.Rcd1+/– Qe7 21.Qb4 Qb4 22.ab4 Nf8 23.Be5 Re7 24.Bd6 Rd7 25.Bf8 Rd2 26.Rd2 Kf8 27.Rd7 Rb8 28.c5 bc5 29.bc5 Ke8 30.c6 Bc6 31.bc6 Rb6 32.Ra7 Rb1 33.Bf1 Rc1 34.g3 Kf8 35.c7 Ke8 36.Kg2 Kd7 37.c8Q Kc8 38.Rf7 1–0. Poschmann,Hans – Hohl,L, corr, 1997.

5.Nf3 d6 =.

4.a3 Be7

5.Nf3 0–0 6.e3 c6 7.Be2 cb5 8.Bb5 a6 9.Bd3 Nc6 10.0–0 d5 11.Ne5 Ne5 12.Be5 Nd7 13.Bb2 Bf6 14.Bf6 Nf6 15.f4 Re8 16.Nc3 Nd7 17.Qh5 g6 18.Qh6 Qf6 19.Rab1 Nc5 20.Rf3 Nd3 21.cd3 Bd7 22.Rb7+/– Bc6 23.Rc7 Rac8+= 24.Rc8 Rc8 25.d4 Bd7 26.f5!+/– ef5 27.Nd5 Qg7? 28.Ne7+– Kh8 29.Qg7 Kg7 30.Nc8 Bc8 31.Rf1 Bd7 32.Rc1 h5 33.d3 Kf6 34.Kf2 Ke6 35.e4 f4 36.Rc5 Kd6 37.Kf3 f5 38.Kf4 fe4 39.de4 Ke6 40.Kg5 Kf7 41.Rc7 Ke6 42.Rd7! Kd7 43.h4 Ke6 44.Kg6 Kd6 45.Kh5 1–0. b4_player – opponent, gamecolony.com, 2007.

5.Nf3 0–0 6.e3 c6 7.Be2 cb5 8.Bb5 Qb6 9.Nc3 a6 10.Bd3 Nc6 11.0–0 d5 12.Qb1 e5 13.e4= de4 14.Ne4 Nd7 15.Re1 f5 16.Qa2 Kh8 17.Neg5 e4? 18.Rab1+– Bg5 19.Ng5 Nd4 20.Nf7 Rf7 21.Qf7 Qe6 22.Qe6 Ne6 23.Bc4 Ndc5 24.d4 ed3 25.cd3 b5 26.Bd5 Rb8 27.d4 Ne4 28.f3 Nd2 29.Rbc1 Nc4 30.Bc4 bc4 31.d5 Nf8 32.Re8 Kg8 33.Rc4 Rb2 34.Rcc8 g6 35.Rf8 Kg7 36.d6 Rb1 37.Kf2 Rb2 38.Ke3 Rb3 39.Kd4 Rb1 40.Rfe8 Rb2 41.Re7 (41.Re7 Kf6 42.Rf8 Kg5 43.Rh7 Rb3 44.d7 Rd3 45.Kd3 Kf4 46.Kd4 g5 47.d8N g4 48.Ne6#) 1–0. b4_player – opponent, gamecolony.com, 2007.

3...c5

4.a4 a5 5.Nf3= b6 6.e3 Bb7 7.Be2 Bd6 8.0–0 0–0 9.d3 Re8 10.Nbd2 e5 11.Nc4+/– Qc7 12.e4 h6 13.Re1 g5 14.Qd2 Kh7 15.Qc3 g4?! 16.Nd6 gf3 17.Ne8 Ne8 18.Bf3 d6 19.Bg4 Bc8 20.Bc8 Qc8 21.f4 f6 22.Rf1 Qd7 23.Rf3 Ng7 24.Raf1 Ne8 25.fe5 de5 26.Qc4 Qe7 27.Be5! Qe5 28.Qf7 Kh8 29.Rh3 (29.Rh3 Qg5 30.Qe8 Kg7 31.Qe7 Kg6 32.Rg3+–) 1–0. Trkn – guest6935, ICC, 2005.

4.a4 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.a4 e6 4.b5 c5).

4.d4 Qa5 5.Nc3 =+.

4.d4 d5 5.Nf3 Qa5 6.Bc3 Qb5 7.e4 cd4?? 8.Bb5+– (8...Bd7 9.Bd7 Nbd7 10.Bd4 de4 11.Ne5+–) 1–0. abt – mels01, Caissa.com, 2004.

4.e3 a5 5.c4 d5 6.Nf3 Nbd7 7.Be2 Bd6 8.d4 b6 9.Nbd2 0–0 10.0–0 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2 a5).

4.e3 Qb6 5.c4 d5 6.Nf3 Bd6 7.Be2 Bd7 8.a4 a6 9.Qb3 ab5 10.ab5 Ra1 11.Ba1 dc4 12.Bc4 Nd5 13.0–0 0–0 14.d3 Nb4 15.Nbd2 Qc7 16.e4 b6 17.g3 e5 18.Nh4 Be7 19.Ng2 Bh3 20.f4 ef4 21.gf4 Qd7 22.f5 Qd6 23.Rf3 Bg2 24.Kg2 Nd7 25.Rg3 Bf6 26.Bf6 Qf6 27.Nf3 Ne5 28.Qb2 Re8 29.Qa1 Kf8 30.Ne5 Re5 31.Qa8 Re8 32.Qb7 Qb2 33.Kh3 Qf2?? 34.Qf7 1–0. carocan (1720) – andric, kurnik, 2011.

4.e3 d6 5.Nf3 Be7 6.Be2 Nbd7 7.0–0 a6 8.c4 ab5 9.cb5 b6 10.Nc3 d5 11.a4 Bb7 12.h3 0–0 13.Qc2 Qc7 14.Rfc1 Rfc8 15.d3 e5 16.Nd2 Qb8 17.Bf3 d4 18.Nce4 de3 19.fe3 Qc7 20.Nc4 Ne4 21.de4 f6 22.Rd1 Nf8 23.Rd2 Rd8 24.Rad1 Rd2 25.Rd2 Ne6 26.Kf2 h6 27.Bc3 Ng5 28.h4 Ne6 29.Bg4 Nf8 30.Nb2 Rd8 31.Bf5 g6 32.Bg4 Rd2 33.Bd2 Qd6 34.Qc4 Kg7 35.Ke2 h5 36.Bf3 Ne6 37.Nd1 f5 38.ef5 gf5?? 39.Nc3 Bf3= 40.gf3 Bh4?? 41.Nd5?? Bd8 42.e4? Nd4–+ 43.Ke3? Bg5 44.Kf2 Bd2 (44...Bd2 45.Qd3 Ba5–+) 0–1. elsh1403 – superharti (1785), kurnik, 2011.

4.Nf3 b6 5.e3 Bb7 6.Be2 Be7 7.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.Be2 0–0 7.0–0 c5).

4.Nf3 d6 5.e3 Be7 6.Be2 0–0 7.0–0 b6 8.c4 Bb7 9.d4 Nbd7 10.Nbd2 Rc8 11.Rc1 cd4 12.Nd4 Ne5 13.N2f3 Qc7 14.Ne5 de5=+ 15.Nf3 Bf3 16.Bf3 Rfd8 17.Qb3 Nd7 18.Rfd1 Nc5 19.Qc2 Bd6 20.h4 f5 21.e4= f4 22.Bg4 Qe7 23.Ba3 Qh4=+ 24.Bc5? Qg4–+ 25.f3?? Bc5 26.Kf1 Qh4 27.Ke2 Qf2 0–1. florenc1330 (1870) – jojopa (1815), kurnik, 2011.

4.f4 d5 5.c4 d4 6.Nf3 a6 7.Qb3 ab5 8.cb5 b6 9.e3 Bd7 10.ed4 Ne4 11.d3 Nf6 12.Nbd2 Ra5 13.a4 Bd6? 14.Ne4 Ne4 15.de4 Bf4 16.Bc3 Ra8 17.d5 ed5 18.Qd5+– Ra7 19.Bg7 Rg8 20.Be5 Be5 21.Ne5 Be6 22.Qd8 Kd8 23.g3 f6 24.Nf3 Nd7 25.Be2 Rg4 26.Bd3 c4 27.Bc2 Nc5 28.Nd4 Kd7 29.0–0 Ne4 30.Be4 Re4+= 31.Rad1 Ke7?? 32.Nc6+– Kf7 33.Na7 c3 34.Rc1 c2 35.Rc2 Bd5 36.Rc7 Kg6 37.Nc6 h6 38.Ne7 Kg5 39.Nd5 Kh5 (40.Rg7 Ra4 41.Nf6#) 1–0. cry – NoLogicHere, Caissa.com, 2004.

4.a3

4.a3 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 c5 4.b5).

4.a3 b6 5.Nf3 Bb7 6.e3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.b5 b6 6.Nf3 Bb7).

4.a4 b6

5.e3 Bb7 6.Nf3 Be7 7.Be2 0–0 8.c4 d5 9.0–0 Nbd7 10.d4 Bd6 11.cd5 ed5 12.dc5 bc5 13.Nc3 Qe7 14.a5 Rfd8 (better is 14...Rac8!?=) 15.a6+/– Bc8 16.Nd5 Nd5 17.Qd5 Nb6 18.Qh5 h6 19.Rfd1 Be6 Black prepares the advance c4 20.e4 (20.Ne5 Be5 21.Qe5 f6+–) 20...c4 (20...Bb3!? 21.Qg4 g6+=) 21.Bc3 Bc5 22.Ne5 Rd1 23.Rd1 Rc8? (better is 23...Qf6 24.Bf3 Na4+/–) 24.Nc6+– Rc6 25.bc6 Na4 26.Ba1 Qc7 (26...Bd6 27.Be5 Bc7 28.Bd4+–) 27.Qe5 Qc6 (27...Qe5 28.Be5 c3+–) 28.Qg7# 1–0. blackiwhite (1760) – zbrojmistrz1 (1805), internet, 2013.

5.e3 d5 6.Be2 Nbd7 7.Nf3 Bd6 8.0–0 Qc7 (8...0–0 9.Nc3+=) 9.h3 (9.a5 0–0=) 9...Bb7 10.d3 (10.Re1 0–0+=) 10...e5 (10...0–0 11.Na3+=) 11.Nbd2 (11.a5 ba5 12.Bc3 0–0+=) 11...0–0+= 12.c4 e4 13.de4 de4 (worse is 13...Ne4 14.cd5 Bd5 15.Nc4=) 14.Ne1 (14.Nh4 a6+=) 14...Rad8 (14...a6 15.f3+=) 15.Qc2 Be5 (15...Rfe8 16.a5+=) 16.Nb3 Bb2 17.Qb2 Ne5 18.Qc2 Rd7 19.Qc3 Rfd8 20.a5 Nd3 21.a6 Ba8 22.Rd1 Ne5 (22...Nf4 23.ef4 Rd1 24.Bd1 Rd1 25.Qe5 Qe5 26.fe5+=) 23.Rd7= Rd7 24.Nc2 Ng6 25.Rd1 Qd8 26.Rd7 Qd7 27.Qd2 Qc7 28.Ne1 Nh4 (28...Ne5 29.Qc3=) 29.Qd1 (29.g3 Nf5=) 29...Nd7 (29...Ng6 30.Nc2=) 30.Nd2 f5 (30...Nf5 31.Qc2 Nf6 32.Qc3=) 31.Nf1 Ne5 32.Nh2 Nf7 33.f3 (33.Nc2 Qe7=) 33...ef3 (33...Nd6 34.f4=) 34.Nhf3 Ng6 (34...Qe7 35.Nh4 Qh4 36.Kf1+=) 35.Qd3 (35.Bd3 Nd6=) 35...Be4 36.Qd1 h6 (36...Qe7 37.Nd2=) ½–½. Ruhle,Ernst Albrecht – Dittler,Volkfried, Wangs Pizol op, 1996.

5.Nf3 d6 6.e3 Nbd7 7.Be2 Bb7 8.0–0 Be7 9.c4 0–0 10.d3 a5 11.Nbd2 e5 12.Nh4 g6 13.Bf3 Qc7 14.Bb7 Qb7 15.Qf3 d5 16.e4 d4 17.g3 Nh5 18.Nf5 Ndf6 19.Ne7 Qe7 20.Qg2 Ne8 21.f4 ef4 22.gf4 Nd6 23.f5 Kh8 24.f6 Qe5 25.Nf3 Qf4? 26.Bc1+– Qf6 27.e5 Qf5? 28.ed6 Rae8 29.Ng5 Qd7 30.Bd2 f6 31.Ne4 f5 32.Bh6 Rf7 33.Ng5 Rf6 34.Rae1 Rd6 35.Qb7! (35.Qb7 Rf8 36.Qd7 Rd7 37.Bf8+–) 1–0. Nadanian,Ashot – Gofshtein,Leonid D, Internet Chess Club 3m + 0s blitz, 2006.

4.c4 a5

5.e3 d5 6.f4 b6 7.Nf3 Bb7 8.Be2 Nbd7 9.0–0 dc4 10.Bc4 Be7 11.d3 0–0 12.Nbd2 Qc7 13.Ne5 Ne5 14.Be5 Qd7 15.Nf3 Bd5 16.Qb3 Rfd8 17.Rad1 Ng4 18.Rfe1 f6 19.Bb2 a4 20.Qc2 a3 21.Ba1 Nh6 22.e4 Bc4 23.dc4 Qb7 24.h3 Nf7 25.Kf2 Rd1 26.Rd1 Rd8 27.Rd8 Bd8 28.Ke3 Bc7 29.Qd3 Qc8 30.Qa3 Nd6 31.Qd3 f5 32.Nd2 Qb7 33.Be5 fe4 34.Ne4 Ne4? Be7 42.Be7 Ke7 43.a3 Kf7 44.Kd6 1–0. carocan (1750) – justuletzus (1720), kurnik, 2011.

5.e3 Be7 6.Nf3 0–0 7.a4 b6 8.Na3 Bb7 9.Be2 ½–½. Lehr,Thomas – Luckow,Joern, 48. LEM Kandidaten, 1993.

4.c4 a6

5.a4 ab5 6.ab5 Ra1 7.Ba1 d5 8.e3 Bd6 9.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4).

5.a4 ab5 6.ab5 Ra1 7.Ba1 d5 8.Nf3 Nbd7 9.d3 Bd6 10.g3 b6 11.Bg2 0–0 12.0–0 Bb7 13.cd5 ed5 14.d4 c4 15.Nfd2 Qc7 16.Qc2 Re8 17.e3 Nf8 18.Nc3 Ne6 19.Rc1 Ra8 20.Qf5 Bb4 21.Qc2 Qd7 22.Rb1=+ Bc3 23.Bc3 Ng5 24.Bb4 h6 25.Nf3 Nf3 26.Bf3 Bc8 27.Bg2 Qe6 28.Qb2 Bd7 29.Bf1 Bb5 30.Bg2 Bc6 31.Be1 b5–+ 32.h3 Qf5 33.Bb4 Qd3 34.Kh2 h5 35.Kg1 Bd7 36.Bf1 Qf5 37.Bg2 Ne4 38.Rf1 Ng5 39.h4 Nf3 40.Kh1 Qd3 41.Ra1 Ra1 42.Qa1 Qe2 43.Qf1 Qb2 44.Bf3 Qb4 45.Bd5 Qb2 46.Kg2 Bf5 47.Qd1? Bg4 48.Qf1 Be2 49.Qe1 c3 50.Be4 b4 51.d5 g6 52.d6 Bg4 53.d7 Bd7 54.Qd1 Bc6!! 55.Qd8 Kh7 56.Bc6 c2 57.Qf8 c1Q 58.Qf7 Qg7 59.Qf3 b3 60.Be4 Kh8 61.Bd3 b2 62.Qa8 Kh7 63.Qd5 b1Q 64.Qh5 Qh6 65.Qh6 Kh6 66.Bb1 Qb1 67.Kf3 Kh5 68.e4 Qe1 69.Kg2 Qe4 (69...Qe4 70.f3 Qe2 71.Kh1 Qf3 72.Kg1 Kg4 73.Kh2 Qg3 74.Kh1 Kf3 75.h5 Qg2) 0–1. Wantoch_Rekowski,Jacek (2245) – Rocco,Jorge Hugo (2200), Spain – Poland, 2008.

5.a4 d5 6.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 a6 6.a4).

5.a4 d5 6.e3 Be7 7.Nf3 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 a6 8.a4).

4.c4 b6

5.e3 Bb7 6.f3 d5 7.Bd3 Nbd7 8.Ne2 Bd6 9.0–0 Ne5 10.Qc2 Nd3 11.Qd3 Qc7 12.cd5 Bd5 13.e4 Bh2 14.Kh1 Bb7?? 15.f4?? Ng4=+ 16.Nbc3 0–0 17.Ng1 Bf4?? 18.Qf3+= h5 19.Qf4 e5 20.Qg3 f5 21.Qe1 f4 22.Nf3 Qf7 23.Nd1 Rfe8 24.Nh2 Rad8 25.Ng4 hg4 26.g3 Qh5–+ 27.Kg1 Rf8 28.Nc3–+ Rd3 29.Qf2?? Rg3 (30.Qg3 fg3 31.Rf8 Kf8 32.Rf1 Ke7–+) 0–1. valpa – Peter_Richard, playchess.de, 2003.

5.e3 Bb7 6.Nf3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4).

5.e3 Bb7 6.Nf3 d5 7.Be2 Bd6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Bd6).

5.Nf3 Bb7 6.e3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4).

5.Nf3 Bb7 6.e3 d5 7.Be2 Be7 8.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

5.Nf3 Bb7 6.e3 Be7 7.Be2 d6 8.0–0 Nbd7 9.Nc3 0–0 10.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.Nc3).

5.Nf3 d6 6.e3 Bb7 7.a4 a5 8.Be2 Be7 9.0–0 h6 10.Nc3 Nbd7 11.d3 Qc7 12.Nd2 0–0–0 13.Bf3 g5 14.Bb7 Qb7 15.Nce4 Rhg8 16.Nf6 Bf6 17.Bf6 Nf6 18.Qe2 g4 19.f4 Rg6 20.f5 ef5 21.Rf5 h5 22.Raf1 Qe7 23.Qf2 g3 24.Qf3 d5 25.Rf6 Rf6 26.Qf6 Qe3 27.Kh1 Qd2 28.Qc6 1–0. bambinik – captainjack, itsyourturn.com, 2001.

4.c4 d5

5.d4 dc4 6.Nf3 Qa5 7.Bc3 Qb5 8.Na3? Qd7 9.e3?? cd4–+ 10.Bd4 Ba3 11.Bc4 Bb4 12.Ke2 Be7 13.Ne5 Qa4 14.Qa4+– Bd7 15.Nd7 Nbd7 16.Bb5 0–0 17.Bd7 Rfd8 18.Bf6 Bf6 19.Be6! Ba1 20.Ra1 fe6 21.Rd1 Rf8 22.Qd7 Rac8 23.Qc8 Rc8+= 24.Rd7 Rb8 25.Kd3 Kf8 26.Kd4 a6 27.Ke5 b5 28.Ke6 Re8 29.Kd6 Ra8 30.Kc5 h6 31.f4 Kg8 32.e4 Kf8 33.e5 Rc8 34.Kb4?? Rc2 35.f5 Ra2 36.e6 Re2 37.Rd8 Ke7+= 38.Rd7 Kf6 39.Ka5 Ra2 40.Kb6+/– Re2 41.e7?? Re7=+ 42.Rd6 Kf7 43.g4 b4 44.Ka6 b3 45.Rb6 Rc7 46.Ka5 Kg8? 47.Rb3+/– Kh7 48.Rb6 Ra7 49.Kb5 Re7 50.g5?? Re5= 51.Ka6 Rf5. iczker – kkkkris, kurnik, 2011.

5.d4 dc4 6.Nf3 a6 7.a4 ab5 8.ab5 Ra2?? 9.Ra2+– Be7 10.Nc3 0–0 11.e3 cd4 12.Qd4 Qc7 13.Bc4 Rd8 14.Qh4 Nd5 15.Bd5 Bh4–/+ 16.Nh4 ed5 17.0–0 Qc4 18.Ra4 Qb3 19.Ra2 Be6 20.Rfa1? h6?? 21.Ne2 Qb5–/+ 22.Nd4 Qd7 23.Nhf3 Nc6 24.Nc6 bc6 25.Ne5 Qe8 26.f4? f6 27.Nf3 c5 28.Ne1 d4 29.ed4 Ba2 0–1. iczker – jkjkjkjkjkjk, kurnik, 2011.

5.Nf3 b6 6.cd5 ed5 7.d4 Nbd7 8.dc5 Bc5 9.e3 0–0 10.Nc3 Bb4 11.Qd4 Qe7 12.Bd3 Bc5? 13.Nd5+– Nd5?? 14.Qg7# 1–0. marre (2140) – Orla (1920), GameColony.com, 2003.

5.Nf3 Nbd7 6.e3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

5.Nf3 Be7 6.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4).

5.g3 Be7 6.Bg2 0–0 7.cd5 ed5 8.Nf3 Bf5 9.0–0 Nbd7 10.d4 Rc8 11.dc5= Bc5 12.Nc3 Nb6 13.Nd4 Bg6 14.Nb3 d4 15.Nb1= Qd7 16.Nc5+= Rc5 17.Ba3 Rc2 18.Bf8+/– Kf8 19.a4 Bf5 20.Na3+– Rb2 21.a5 Nbd5? 22.Qd4 Re2 23.Rfd1 Qe6 24.Bd5 (24.Bd5 Nd5 25.Qc5 Ke8 26.Nc4+–) 1–0. bridlingtonbrummie – Old Beal, ChessWorld.net, 2010.

5.cd5 ed5

6.a4 a6 7.g3 ab5 8.ab5 Ra1 9.Ba1 Be7 10.Bg2 Be6 11.Nf3 Qa5 12.Bf6 Bf6 13.0–0 Qb5 14.Re1 0–0–+ 15.d4 c4 16.Nc3 Qb4 17.Qc2 Nc6 18.e3 Ra8 19.Rb1 Qe7 20.Na4 Nb4–+ 21.Qd1 Nd3 22.Qc2 g6 23.Nd2 Nb4 24.Qd1–/+ Nd3 25.Nc3 Qd7 26.Qf3=+ Bg7 27.Nd5= Bd5 28.Qd5 Qd5 29.Bd5 c3 30.Nb3 c2 31.Rf1 Ra7?? 32.Be4+/– Nb4 33.Rc1 Ra2 34.Na1 Ra3 35.Nc2 Rc3 36.Kf1 f5= 37.Bb7 Rc2 38.Rb1? Bf8 39.Rd1 Be7 40.Kg2 Kg7 41.Kf3?? Rc7–+ 42.Ba8 Ra7 43.Be4 fe4 44.Ke4 Na2 45.Kd3 Nb4?? 46.Kc4?? Ra2–+ 47.Rf1 Kf7 48.e4 Rc2 49.Kb3 Ke6 50.h3 Re2 51.e5 Bf8 52.Kc3 Kd5 53.g4 Nc6 54.Kd3 Re4 55.f4 Rd4 56.Ke3 Bc5 57.Kf3 Rd3 58.Kg2 Rd2 59.Kg3 Bd4 60.g5 Ne7 61.Rb1 Nf5 62.Kf3 Rd3 63.Kg2–+ Nh4 64.Kh2 Rd2 65.Kg3 Nf5 66.Kg4?? Ke4 67.Re1 Be3 68.h4 Rg2 69.Kh3–+ Rf2 70.e6 Kf4 71.Rb1 Rf3 72.Kh2 Kg4 73.Rb4 Bf4 74.Kg2 Nh4 75.Kg1–+ Kg5 76.Re4 Nf5 77.e7 Ne7 78.Re7 h5 79.Rb7 h4 80.Kg2 Kg4 81.Rh7 h3 82.Kh1 (82.Rh3 Rh3 83.Kf2 Rh2 84.Kg1 Kf3 85.Kf1 Rh1#) 0–1. Rey Hermida,JJ – Gomez,Francisco, Ibercaja op Zaragoza, 1997.

6.a4 Bd6 7.e3 –/+.

6.e3 Bd7 7.Nf3 Be7 8.a4 a6 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bc3 Qb6 13.Qb3 c4–/+ 14.Qb2 Qb5 15.Qb5 Bb5 16.0–0 0–0 17.Nd4 Bd7–+ 18.d3 b5 19.h3 b4 20.Be1? c3 21.Nc2? b3 (21...b3 22.Nd4 c2–+) 0–1. tanto (1710) – badplayer (1800), net–chess.com, 2002.

6.e3 Be7 7.Nf3 0–0 8.Be2 a6 9.a4 Nbd7 10.0–0 Ne4 11.d3 Ng5 12.Ng5 Bg5 13.Bf3 Nf6 14.Nd2 Bd7 15.Qb3 Be6 16.Qc2 b6 17.Nb3 (17.ba6!? Ra6 18.a5=) 17...ab5+= 18.ab5 Rc8 19.Nd2 Nd7 20.e4 d4 21.Nc4 Qc7 22.Rae1 Ne5 23.Ne5 Qe5 24.g3 (24.Ra1 c4–/+) 24...f5 (24...Bf6!?–/+) 25.ef5+= Qf5 26.Bg2 c4 27.Qe2 Rce8 (27...Bf7 28.Bd4 cd3 29.Qb2+=) 28.dc4 Qc5 29.Qe5 Bf6? (better is 29...Bc4 30.Qd4 Qd4 31.Bd4 A) worse is 31...Bb5 32.Re8 (worse is 32.Bb6 Bf1 33.Re8 Re8 34.Kf1 Rb8+=) 32...Re8 33.Ra1+/–; B) 31...Bf1 32.Re8 Re8 33.Bf1 Rb8=) 30.Qc5+– bc5 31.Rd1?? (better is 31.Re6 Re6 32.Bd5+–) 31...Bc4–/+ 32.Rfe1 (better is 32.Ba3!? Bf1 33.Kf1–/+) 32...Bb5 33.Ba3 Re1 34.Re1 Re8 (better is 34...Rc8!?–+) 35.Re8 Be8 36.Bc5 Kf7 37.Be4 g6 (37...Bb5 38.f4+= (38.Bh7? g6–+)) 38.f4 Bd7 39.Kf2 Be6 40.Kf3 Bc4 41.Bc2 (41.g4 Ke6=) 41...Bd5 (41...d3 42.Bd1+=) 42.Be4 Bc4 43.Kf2 d3 (better is 43...Ke6!?=) 44.Ke3+/– Ke6 45.Bd3 Kd5 46.Bc4 Kc5 47.Bg8 h6 48.Ke4 Kd6 49.Bh7 g5 50.fg5 (50.Kf5 Ke7+/–) 50...hg5 51.Kf5 Bd8 52.Kg6 Ke5 53.Kf7 Bf6 54.Kg6 Bd8 55.Kh5 Kd4 56.Kg4 Ke3 57.Kh3 Kf3 58.Bg8?? g4 0–1. Melzig,Ernst – Gafke,Manfred, Bayern–ch Seniors, 2001.

6.e3 Be7 7.Nf3 0–0 8.Be2 a6 9.a4 Nbd7 10.0–0 Ne4 11.d3 Ng5 12.Ng5+= Bg5 13.Bf3 Nf6 14.Nd2 Bd7 15.Qb3 Be6 16.Qc2 b6 17.Nb3 ab5–/+ 18.ab5 Rc8 19.Nd2 Nd7 20.e4+= d4 21.Nc4 Qc7 22.Rae1 Ne5=+ 23.Ne5 Qe5 24.g3 f5 25.ef5 Qf5 26.Bg2 c4 27.Qe2 Rce8 28.dc4 Qc5 29.Qe5 Bf6?? 30.Qc5+– bc5 31.Rd1?? Bc4=+ 32.Rfe1 Bb5–/+ 33.Ba3 Re1 34.Re1 Re8 35.Re8 Be8 36.Bc5 Kf7 37.Be4 g6 38.f4 Bd7 39.Kf2 Be6 40.Kf3 Bc4 41.Bc2 Bd5 42.Be4 Bc4 43.Kf2 d3 44.Ke3+= Ke6 45.Bd3 Kd5 46.Bc4 Kc5= 47.Bg8 h6 48.Ke4 Kd6 49.Bh7 g5 50.fg5 hg5 51.Kf5 Bd8 52.Kg6 Ke5 53.Kf7 Bf6 54.Kg6 Bd8 55.Kh5 Kd4 56.Kg4 Ke3 57.Kh3 Kf3 58.Bg8?? g4# 0–1. Melzig,Ernst – Polk,Maria, 13sen.BayEM Schney, 2001.

6.Nf3 b6 7.e3 Be7 8.Be2= 0–0 9.0–0 Nbd7 10.a4 Bb7 11.d3 Rc8 12.Nbd2 Ng4 13.Bc3 Bf6= 14.Bf6 Ndf6 15.Qe1 d4 16.ed4 cd4=+ 17.h3 Nh6 18.Nb3 Nf5 19.g4 Bf3 20.gf5? Be2 21.Qe2 Re8 22.Qf3–/+ Rc3 23.Rab1 Qd6 24.Nc1 Ra3 25.Ne2 Ra4 26.Rfe1 a6 27.Rbc1 ab5 28.Rc6 Qb4 29.Rec1 Ra2 30.Rc8 Qe7 31.Nd4–/+ b4 32.Nc6 Qd7 33.Re8=+ Qe8 34.Nb4 Re2 35.Kf1 Nd7?? 36.Nd5 Re5+/– 37.Nc7?? Qd8 38.d4 Re7 39.d5 Nf6 40.Rc6?? Rc7–+ 41.Qc3 Rd7 42.d6?? (42.d6 Ne4 43.Qb4 Nd6 44.Qb6–+; better is 42.Rc8 h5 43.Rd8 Rd8 44.Qc7 Rd5 45.Qb6 Rf5 46.Qd8 Kh7 47.Qe7+=). grain – RABALA, Live Game Caissa's Web, 2005.

5.e3

5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4).

5.e3 b6 6.Nf3 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

5.e3 b6 6.Nf3 Bb7 7.Be2 Be7 8.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

5.e3 b6 6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 b6).

5.e3 b6 6.Nf3 Nbd7 7.Be2 Bb7 8.d4 Be7 9.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4 Nbd7).

5.e3 Bd6 6.Nf3 Nbd7 7.Qb3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Qb3).

5.e3 Nbd7 6.d3 Bd6 7.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.d3).

5.e3 Nbd7 6.Nf3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

5.e3 Nbd7 6.Nf3 Bd6 7.a4 b6 8.Nc3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Nc3 b6 8.a4).

5.e3 Nbd7 6.Nf3 Be7 7.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7).

5.e3 Be7 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4).

5.e3 Be7 6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7).

4.c4 d6

5.a4 a5 6.e3= Nbd7 7.Nf3 Be7 8.Be2 0–0 9.0–0 h6 10.d3 b6 11.Nbd2 Bb7 12.Rc1 Qc7 13.d4 Rfe8 14.Ne1 Nf8 15.Bf3 Rab8 16.Bb7 Rb7 17.Ndf3 N8d7 18.Nd3 Ne4 19.Qc2 Bf6 20.Nf4 Ng5 21.Ng5 Bg5 22.Nh5 g6 23.f4 gh5 24.fg5+– hg5? 25.Qf2 Nf8 26.dc5+/– dc5 27.Qf6+– Ng6?? (better is 27...e5 28.Qg5 Ng6 29.Qh5 Qd6+–) 1–0. Niephaus,Friedel – Krips,Sabine, Hofheim (Women), 1995.

5.a4 d5 6.e3 =+.

5.d4 cd4 6.Bd4 e5 =+.

5.e3 Be7 6.Be2 d5 7.cd5 ed5 8.Nf3 0–0 9.0–0 b6 10.a4 a6 11.d4 c4 12.Ne5 ab5 13.ab5 Ra1 14.Ba1 Nfd7 15.Bf3= Bb7 16.Nc3 Nf6 17.Re1 Re8 18.Qb1 Nbd7 19.e4 de4 20.Ne4 Ne4 21.Be4 Be4 22.Qe4 ½–½. Dopper,Johan – Pannekoek,Jan, 1994.

4.c4 Be7

5.a4 d5 6.e3 b6 7.Nf3 Nbd7 8.Bd3 Qc7 9.0–0 Bb7 10.Re1 e5 11.Ne5 Ne5 12.f4 Nd3 13.Rf1 Nb2 14.Qc2 Nc4 15.Qc4 dc4 0–1. guest1151 – guest101, ICC, 1999.

5.e3 0–0 6.Nf3 b6 7.Qc2 Bb7 8.Be2 d6 9.0–0 Nbd7 10.Nc3 Qc7 11.h3 d5 12.Rac1 Ne4 13.d3 Nd6 14.Nb1 dc4 15.dc4 Ne4 16.Nbd2 f5 17.Rfd1 Nd6 18.Ne5 Rad8 19.Ndf3 Ne5 20.Ne5 Nf7 21.Nf7 Kf7 22.f4 Bf6 23.Bf3 Bf3 24.gf3 Qe7 25.e4 fe4 26.fe4 Bd4 27.Bd4 cd4 28.c5 bc5 29.Qc5 Qh4 30.Rd3 Kg8 31.Qe5 Rf4 32.Rd2 Re4 33.Qc5 Re1 0–1. Eberl – Fluegge, corr DDR 1981.

5.e3 0–0 6.Nf3 b6 7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0).

5.e3 0–0 6.Nf3 b6 7.Be2 Bb7 8.0–0 d5 9.d4 Nbd7 10.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.d4).

5.e3 a6 6.a4 0–0=+ 7.Be2 ab5 8.ab5= Ra1 9.Ba1 d5 10.d4 Ne4 11.Nf3 cd4 12.Bd4= Bb4 13.Kf1 dc4 14.Bc4 Nd6 15.Bd3 Qa5 16.h4 Bd7 17.Bh7?? Kh7–+ 18.Ng5 Kg8 19.Qh5 Bb5 20.Kg1 Bd3 21.Qg4 Qf5 22.Qg3 f6 23.f3 Bb1 24.f4 fg5 25.hg5 Rc8 26.Rh5 Rc1 27.Kh2 Be1 28.Qf3 Be4 (29.Qh3 Qh3 30.Kh3 Bf5 31.Kh2 Ne4–+) 0–1. Mohring,Norbert – Bock,Andreas, SEM–ch VT2 Merzig, 1996.

5.e3 d5 6.Nf3 Bd6 7.a4 a5 8.Na3 b6 9.d4 cd4 10.Nd4 Bb4 11.Ke2 e5 12.Ndc2 Qe7 13.cd5 0–0 14.Nb4 ab4 15.Nc2?? Qc5 16.Be5+= Nd5 17.Qd3 Nc3 18.Bc3+/– bc3 19.g3 Bf5 20.Qd1? Be4?? 21.Rg1? Qf5?? 22.Nd4= Qd5 23.Ke1 Nd7 24.Be2 Ne5 25.f4 Nc4 26.Kf2 Rfe8 27.Bc4 Qc4=+ 28.Qe2 Bd3 29.Qa2 Qc5 30.Rac1 Re3?? 31.Ke3+= Bc4? 32.Qc2 Re8= 33.Kf3 Bd5 34.Kg4 Qd4 35.Qc3?? h5?? 36.Kh5?? Qf2?? 37.Rgf1?? Qh2 38.Kg4 f5! 39.Kf5 Qh5# 0–1. chessleon – Rudolf, internet, 2007.

4.bc6 bc6

5.c4 d5 6.e3 c5 7.Nf3 Nc6 8.cd5 ed5 9.Bb5 Bd7 10.Qa4 Nb4 11.Bf6 gf6 12.0–0 Rb8 13.Bd7 Qd7 14.Qd7 Kd7 15.Nc3 Ke6 16.d4 c4 17.e4 de4 18.Ne4 f5 19.Nfg5 Ke7 20.Nc5 Rd8 21.Rab1 Kf6 22.Rb4 Rd4 23.Nf3 Bc5 24.Rb7 Rd5 25.Rc1 Bb6 26.Kf1 Rc8 27.Rc3 Ra5 28.a3–/+ Rb5 29.Nd2 Rb2 30.Rc4 Rd8 31.Rc6 Kg7 32.Rcb6 Rb6 33.Rb6 ab6 34.Ke2 Kf6 35.f4 Rd4 36.g3 Ra4 37.Nb1 Ke6 38.Kd3 Kd6 39.Kc2 Kc5 40.Kc3 b5 41.Kd3 Ra6 42.Ke3 Kc4 43.h4 Kb3 44.Kd4 Ra3 (45.Nc3 b4–+; better is 44...Kb2!? 45.Nc3 Ra4 46.Na4 ba4 47.h5–+) 0–1. Novikov,Konstantin I – Bragin,Sergey S, Tula Club–ch op, 2000.

5.e3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.bc6 bc6).

4.bc6 Nc6

5.c3 d5 6.e3 Be7 7.Bb5 0–0 8.Nf3? a6?? 9.Bd3 b5 10.0–0 Bb7 11.Bc2 Rc8 12.d4 b4 13.cb4 Nb4 14.Bb3 Qc7 15.Na3 Rfe8 16.Ne5 (16…Bd6 17.Qe2=+). pinecrest1981 – OutOne, Caissa.com, 2004.

5.e3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.bc6 Nc6).

5.Nf3 Be7 6.e3 0–0 7.Be2 Qb6 8.Ba3 Ba3 9.Na3 d5 10.0–0 a6 11.c4 dc4 12.Nc4 Qc7 13.d4 b5 14.Nce5 Ne5 15.Ne5 Bb7 16.Rc1 Qb6 17.Bf3 Rac8 18.Bb7 Qb7 19.Qf3 Qf3 20.gf3 Nd5 21.Nd7 Rfd8 22.Nc5 Rd6 23.Na6 Nc3! 0–1. Adamowski – Rosikiewicz, corr AMM PL 1990–91.

4.e3 a6

5.a4 ab5 6.ab5 Ra1 7.Ba1 Be7 8.c4 0–0 9.Nf3 d5 10.Be2 Nbd7 11.0–0 dc4 12.Bc4 Nb6 13.d3 Nfd5 14.Nbd2 Bf6 15.Ne4 Qe7 16.Ne5 Rd8 17.Qe2 Be5 18.Be5 f6 19.Bb2 e5 20.Ba3+= Nc4 21.dc4 Nb4 22.Bb4 cb4 23.c5 Be6 24.Qb2 b3 25.Qc3 Qc7 26.h3 f5 27.Ng5 Bd5= 28.e4 fe4 29.Re1 Qe7 30.Ne4+= Rf8 31.Re2+/– Qe6 32.Ng3 Qf6 33.Nf1 e4= 34.Qf6 gf6 35.Rd2 Be6 36.Ng3 f5 37.Ne2 Rc8 38.Nd4 Rc5–+ 0–1. Labahn,Wolfgang – Krause,P, corr ch D teams, 1991.

5.a4 d5 6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 a6 6.a4).

5.Nf3 g6 6.Nc3 Bg7 7.a4 0–0 8.Be2 b6 9.0–0 a5 10.d4+= d6 11.dc5 dc5 12.Qd8 Rd8 13.Rad1 Re8 14.Ne5 Ra7 15.Nc4 Nbd7 16.Bf3 Bb7 17.Bc6 Re7 18.Nd6 Bc6 19.bc6 Ne5 20.Nc8 Nc6 21.Rd6 Red7 22.Rc6 (22.Rc6 Rac7 23.Rc7 Rc7 24.Nd6+– (24.Nb6?! Rb7+/–)) 1–0. pcmvr – vanadis (2425), net–chess.com, 2009.

4.e3 b6

5.c4 Bb7 6.Nf3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4).

5.c4 Bb7 6.Nf3 d5 7.d4 Nbd7 8.Nbd2 Bd6 9.Be2 0–0 10.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2).

5.Be2 Bb7 6.Bf3 d5 7.c4 Nbd7 8.Ne2 Qc7 9.cd5 ed5 10.0–0 Bd6 11.g3 0–0 12.d4 c4 13.a4 a6 14.Nbc3 Rfc8 15.Qc2 ab5 16.Nb5 Qc6 17.Nec3 Nb8 18.e4 de4 19.Ne4 Ne4 20.Be4 Qe4 21.Qe4 Be4 22.Nd6 c3 23.Bc1 Nc6 24.Ne4 Nd4 25.Be3 Nc2 26.Rac1 Ne3 27.fe3 c2 28.Rf2 Ra4 29.Rfc2 Rc2 30.Rc2 h6 31.Nd6 f6 1–0. Bulcourf – Dickau, Olivos 1993.

5.Nf3 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5).

5.Nf3 Bb7 6.c4 d5 7.a4 Nbd7 8.d3 Bd6 9.Nbd2 0–0 10.Be2 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4 b6 9.d3 Bb7 10.Nbd2).

5.Nf3 Bb7 6.c4 d5 7.a4 Nbd7 8.Be2 Bd6 9.0–0 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

5.Nf3 Bb7 6.Be2 Be7 7.c4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2).

5.f4 Bb7 6.Nf3 d5 7.Be2 Nbd7 8.0–0 Bd6 9.Ne5 Qe7 10.a4 Rg8 11.c4 g5 12.Bf3 gf4 13.ef4 0–0–0 14.a5 Be5 15.fe5 Ne4 16.ab6 ab6 17.d4 Ng5 18.Ra7 Nf3 19.Qf3 Kb8 20.Rb7 Kb7 21.cd5 ed5 22.Qd5 Kb8 23.Rf7 Ne5 24.Re7 Rd5 25.Re5 Re5 26.de5 Rd8 27.Nc3 Rd2 28.Ba3 Rc2 29.Na4 Kc7 30.e6 Re2 31.Nc5 bc5 32.Bc5 Re6 33.g3 Re5 34.b6 Kc6 35.Bf2 Rb5 36.Kg2 Kd6 37.Kf3 Ke5 38.g4 ½–½. Bellinger – Goodman, London 1973.

5.f4 Bb7 6.Nf3 Be7 7.Be2 0–0 8.0–0 Ne4 9.d3 Bf6 10.c3 Nd6 11.a4 Nf5 12.Qc1 d5 13.g4 Nh4 14.Qe1 Nf3 15.Bf3 Qd7 16.g5 Be7 17.Nd2 a6 18.c4 f6 19.h4 Qc7 20.Qg3= Nd7 21.Qg2 Qd6 22.cd5 ed5 23.Nc4 Qe6 24.f5 Qf5 25.Be4+– dc4?? 26.Rf5 (26.Bf5 Bg2 27.Kg2 Rad8 28.Be6 Kh8 29.Bc4 ab5 30.Bb5 fg5 31.hg5 Kg8+/–) ½–½. Buczinski,Henryk – Zajac,J, Katowice Poland, 1979.

4.e3 d5

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5).

5.c4 b6 6.Nf3 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

5.c4 b6 6.Nf3 Bb7 7.Be2 Bd6 8.0–0 0–0 9.a4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

5.c4 b6 6.Nf3 Bb7 7.Be2 Be7 8.0–0 Nbd7 9.d4 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4 Nbd7).

5.c4 Bd6 6.Nf3 0–0 7.d3 Nbd7 8.Nbd2 b6 9.Be2 Bb7 10.0–0 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2).

5.c4 Bd6 6.Nf3 0–0 7.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

5.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7).

5.c4 Be7 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4).

5.f4 Bd6 6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Nbd7 6.Nf3 Bd6).

5.Nf3

5.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3).

5.Nf3 b6 6.c4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

5.Nf3 Bd6 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c5).

5.Nf3 Bd6 6.c4 0–0 7.Be2 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0–0 10.Be2).

5.Nf3 Bd6 6.c4 0–0 7.Be2 Nbd7 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 Qe7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 Qe7).

5.Nf3 Bd6 6.Be2 0–0 7.0–0 Nbd7 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0).

5.Nf3 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7).

5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7 8.d3 b6 9.Nbd2 Bb7 10.0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.Be2 0–0 7.0–0 d5 8.d3 c5 9.Nbd2 Nbd7 10.c4).

5.Nf3 Be7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 c5).

5.Nf3 Nbd7

6.a4 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

6.a4 Bd6 7.c4 b6 8.Be2 Bb7 9.0–0 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3).

6.c4 b6 7.Be2 Bb7 8.0–0 Bd6 9.a4 0–0 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

6.c4 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

6.c4 Bd6 7.d3 0–0 8.Nbd2 b6 9.Be2 Bb7 10.0–0 Qe7 11.a4 a5 12.ba6 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2 Qe7 11.a4 a6 12.ba6).

6.c4 Bd6 7.d4 b6 8.Nbd2 Bb7 9.Be2 0–0 10.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2).

6.c4 Bd6 7.Be2 0–0 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

6.c4 Bd6 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.a4 Qe7 11.Nbd2 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2 Qe7 11.a4).

6.c4 Be7 7.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7).

6.c4 Be7 7.Be2 0–0 8.a4 b6 9.0–0 Bb7 10.Qb3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.Qb3).

6.Be2 Bd6 7.c4 b6 8.d4 Bb7 9.0–0 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7).

4.e3 Be7

(--> 3.b5 Be7 4.e3 c5).

5.c4 d5 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4).

5.Nf3 b6 6.c4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7).

5.Nf3 b6 6.c4 Bb7 7.Be2 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2).

5.Nf3 b6 6.d3 Bb7 7.c4 0–0 8.Be2 d5 9.Nbd2 Nbd7 10.0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.Be2 0–0 7.0–0 d5 8.d3 c5 9.Nbd2 Nbd7 10.c4).

5.Nf3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7) 6.c4 b6 7.Be2 0–0 8.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 b6 8.0–0) 8...Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

4.Nf3 d5

5.c4 d4 6.e3 de3 7.fe3 Be7 8.Be2 0–0 9.0–0 b6 10.Ng5 Nbd7 11.Qc2 h6 12.Bf3 Rb8 13.Nh3 Bb7 14.d3 Qc7 15.Nf4 Bd6 16.Bb7 Rb7 17.g3 Ng4 18.Qe2 Be5 19.d4 Bf4 ½–½. K Horvath – Bencsik, corr 1991.

5.c4 Nbd7 6.cd5 ed5 7.g3 a6 8.ba6 Ra6 9.Bg2 Be7 10.0–0 0–0 11.d3 b5 12.e4 de4 13.de4 Ne4 14.Qe2 Re6 15.Qc2 Bf6 16.Nbd2 Bb2 17.Qb2 Nd2 18.Nd2 Rb6 19.Rfe1 c4 20.Ne4 Bb7 21.Qb4 Ne5 22.Qc3 Nd3 23.Re3 f5 24.Nd2 Bg2 25.Kg2 f4 26.Rf3 Qd5 27.Kg1 Rbf6 0–1. Tendulkar – Morozevich,A, ICC blitz, 1999.

5.e3 Be7 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.c4 c5).

5.e3 Be7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 c5).

4.Nf3 Be7

5.e3 0–0 6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 b6 10.0–0 Bb7 11.c4 ½–½. Fedorowicz – Schulz, Porz 1988.

5.e3 d5 =.

5.e4 0–0 6.e5 Nd5 7.c4 Nf4 8.d4 b6 9.Bc1 Ng6 10.Bd3 Bb7 11.0–0 cd4 12.Bg6 fg6 13.Nd4 Bc5 14.Nb3 d5 15.cd5 Bd5 16.Nc5+= bc5 17.Nc3 Bb7 18.Be3 Nd7 19.Qd6 Bd5? 20.Nd5+– ed5 21.Qd5 Kh8 22.Rad1 Nb6 23.Qd8 Rad8 24.Bc5 Rfe8 25.Rd8 Rd8 26.e6 Re8 27.Re1 Nd7 28.Ba7 Nf6 29.a4 h5 30.a5 Ra8 31.b6 Nd5 32.b7 Re8 33.e7! (33…Kh7 34.a6 Ne7 35.Bb6+–) 1–0. b4_player (2180) – NN, GameColony.com, 2002.

5.g3 b6 6.Bg2 Bb7 7.0–0 0–0 8.d3 d5 9.Ne5 Nbd7 10.f4 Ne5=+ 11.fe5 Ng4–/+ 12.Rf3 d4–+ 13.Rf4?? Ne3 (14.Bb7 Nd1 15.Ba8 Qa8–+) 0–1. Bende,Ede – Majeric,Zoran, HUN tt3, 2001.

5.g3 d5 6.Bg2 =+.

4.g3 d5

5.Ba3 Nbd7 6.e3 g6 7.Nc3 Bg7 8.Na4 Ne4 9.Rb1 Qa5 10.c4 Nd2 11.Qd2 Qa4 12.Bb2 Qa2 13.Qc1 Qa5 14.Kd1 Bb2 15.Qb2 0–0 16.Ra1 Qb4 17.Qc2 Nb6 18.Rb1 Qa4 19.cd5 Qc2 20.Kc2 ed5 21.Rd1 Bf5 22.Bd3 Bd3 23.Rd3 a5 24.Ne2 a4 25.Nc3 Rfd8 26.Ra1 d4 27.ed4 cd4 28.Ne2 Rac8 29.Kb1 Rc4 30.Rd4 Rdd4 0–1. Florio – Pellegrino, corr 1975.

5.e3 Nbd7 6.Nf3 Be7 7.c4 dc4 8.Bc4 Nb6 9.Be2 0–0 10.Qc2 Nbd5 11.a3 b6 12.e4 Nc7 13.0–0 Bb7 14.Nc3 Rc8 15.a4 Qe8 16.a5 a6 17.ba6 Na6 18.ab6 Nb4 19.Qb1 Qc6 20.Rc1 Qb6 21.Na4 Qd6 22.e5 Qc6 23.ef6 Bd6 24.fg7 Rfd8 25.Bf6 Rd7 26.Nc5 Bc5 27.d4 1–0. mtr – RABALA, Internet, 2001.

3...Bc5

4.a4 0–0 5.e3 d5 6.d4 Bb4 7.c3 Ba5 8.Nd2 a6 9.Nb3 b6 10.Na5+= ba5 11.Nf3 ab5 12.Bb5 Ba6 13.Ba3+/– Bb5 14.ab5 Re8= 15.Ne5 Ne4 16.Bb2 Nd7 17.Nc6= Qg5 18.g3 Qf6 19.0–0 Nb6 20.Ne5 Nc4 21.Qc2? Ne5 22.de5–/+ Qf3 23.Rae1? Ng5 (23...Ng5 24.h4 Qe4 25.Qe4 Ne4–+ (25...de4? 26.hg5 Reb8 27.c4+–)) 0–1. mic (2100) – hotchess (2205), net–chess.com, 2008.

4.a4 Ne4 5.e3 Qh4 6.Qf3 0–0?? 7.g3+– Qg5 8.Qe4 d5 9.Qe5 Qe5 10.Be5 Nd7 11.Bc7 b6 12.d4 Bb4 13.c3 Ba5 14.Bd3 Bb7 15.Ne2 Rac8 16.Bd6 Rfe8 17.0–0 Nf6 18.Rc1 Ng4 19.c4 Rcd8 20.Bf4 dc4 21.Rc4 e5 22.Bg5 f6 23.Bh4 ed4 24.Rd4?? Rd4?? 25.Nd4 Bc3?? 26.Nc3 Ne3 27.fe3 Re3 28.Rd1 (28.Rd1 Re8 29.g4+–) 1–0. j1a9n55 – danielxxxx, kurnik, 2011.

4.c4 0–0 5.e3 d5 6.d4 Bb4 7.Bc3 Qe7 8.Qb3 Bc3 9.Nc3 dc4 10.Bc4 Nbd7 11.Nf3 Nb6 12.Be2 Nfd5 13.a4 Nc3 14.Qc3 Nd5 15.Qb3 Qb4 16.Qb4+/– Nb4 17.Kd2 Rd8 18.Rhc1 Nd5 19.e4 Nf4 20.g3 Ne2 21.Ke2 Rd7 22.Rc4 c6 23.Ne5 Re7 24.bc6 bc6 25.Nc6 Rc7 26.Rac1?? Ba6= 27.Kd3?? Rc6–+ 28.d5 ed5 29.ed5 Rd8 30.Kd4 Bc4 31.Rc4 Rc4 32.Kc4 Kf8 33.Kc5 Ke7 34.Kc6 Rc8 35.Kb7 Rc4 36.a5 Kd6 37.Ka7 Kd5 38.Kb6 Rc2 39.a6 Rf2 40.a7 Ra2 41.Kb7 Ke4 42.a8Q Ra8 43.Ka8 f5 44.Kb7 g5 45.Kc6 f4 46.gf4 Kf4 47.Kd5 h5 48.Kd4 Kf3 49.Ke5 g4 50.Kf5 h4 51.Kg5 g3 52.h3 g2 53.Kh4 g1Q 54.Kh5 Kf4 55.h4 Qg4 56.Kh6 Kf5 57.h5 Qg5 58.Kh7 Qh5 59.Kg7 Qg5 60.Kf7 Qg6 61.Kf8 Qh7 62.Ke8 Ke6 63.Kd8 Qd7 0–1. carocan (1780) – hedone, kurnik, 2011.

4.c4 d5 5.e3 c6 6.a4 dc4 7.Bc4 0–0 8.Nf3 Nbd7 9.0–0 Nb6 10.d3 Nc4 11.dc4 Qe7 12.Qc2 a5 13.Nbd2 Nd7 14.Ne4 Ba7 15.Neg5 f5 16.Qc3 Nc5 17.Rfd1 Ne4 18.Ne4 fe4 19.Nd2 cb5 20.cb5 b6 21.Ba3 Qf6 22.Qf6 Rf6 23.Ne4 Rf8 24.Bf8 Kf8 25.Rd8 Ke7 26.Rad1 h6 27.R1d7 1–0. hal1958 – ggaarrii, playchess.de, 2002.

4.d4 Be7 5.e3 d5 6.Nd2 0–0 7.Ngf3 Nbd7 8.Be2 Ne4 9.0–0 b6 10.Ne4 de4 11.Nd2 Bb7 12.c4 Rc8 13.a4 Bb4 14.Nb3 a5 15.Rc1 Qe7 16.Qc2 c5 17.dc5 bc5 18.Rfd1 Nb6 19.Nd2 f5 20.Bc3 Bc3 21.Qc3 Na4 22.Qa3 Nb6 23.Qa5 Nd7 24.Qc3 Ra8 25.Ra1 Nb6 26.Qe5 Rfd8 27.Ra8 Ra8 28.h3 Rd8+= 29.Qc3 Ra8 30.Nb3 Ra3 31.Ra1 Ra1 32.Qa1 Qc7? 33.Qa7+– Nd7? 34.Na5 Ne5 35.Nb7 Qd7 36.Qc5 Nd3 37.Nd6 Nc5–+ (38.Ne4 Ne4–+) 0–1. Ruhle,Ernst Albrecht (1625) – Michel,Jan, Seefeld op, 2000.

4.e3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bc5).

4.e3 Ne4 5.Qg4 f5 6.Qg7 Rf8 7.d3 Nf2? 8.Kf2+– Be3 9.Ke3 Qh4 10.Nf3 f4 11.Kd2 Qh5 12.Ba3 d6 13.Qc7 Nd7 14.Qd6 Rf7 15.Qe6 Kd8 16.Kc1 Nc5 17.Qd6 Nd7 18.Nd4 a6 19.Ne6 Ke8 20.Nc7 (20.Nc7 Kd8 21.Na8+–; better is 20.d4!? f3 21.Bc4 Qh6 22.Kb2 Qf6+–) 1–0. mrkt – folioc, kurnik, 2007.

4.e3 Qe7 5.d4 Bd6 6.Nf3 Ne4 (6...a6 7.c4 Bb4 8.Bc3 ab5 9.cb5=) 7.Bd3+= Ng5 8.c4 b6 9.c5 bc5 10.dc5 Bc5 11.h4 Bb4 (better is 11...Nf3!? 12.Qf3 Bb4 13.Nd2 c6 14.Bg7 Rg8+/–) 12.Nfd2+– Qc5? (better is 12...Bb7 13.Qg4 f5 14.Qg5 0–0+–) 13.hg5 Qg5 (13...Qd5 14.Qf3 Qf3 15.gf3+–) 14.Qf3 (14.Bh7?! Qg2 15.Ke2 Bb7+–; 14.Rh7?! Rh7 15.Bh7 Qg2+–) 14...d5 15.Rh5 (15.Rh7?! Rh7 16.Bh7 a6+–) 15...Qe7 16.Bg7 Rg8 17.Bf6 (17…Qd7 18.Bh7+–) 1–0. mrkt – Lacomolza, ChessWorld.net, 2003.

4.Nf3 d5 5.d4 Bd6 6.c4 dc4 7.e3 +=.

4.c4 a6

5.a4 a5 6.Nf3 0–0 7.e3 b6 8.Be2 d5 9.0–0 dc4 10.Na3 Bb7 11.Nc4 Nbd7 12.Qc2 Rb8 13.Nfe5 Ne5 14.Be5 Qd5 (14...Nd7!?+=) 15.Bf3+/– Qd8 16.Bb7 Rb7 17.Na5! ba5 18.Qc5 Qd5 19.Rfc1 Rd8? (better is 19...Qd2 20.Bc7 Nd5+–) 20.Bc7 Qc5 21.Rc5 Rc8 22.Rac1 Nd5 (22...Nd7 23.Rc6 Ra8 24.d4+–) 23.Ba5 Rc5 24.Rc5 Rb8 25.Bc7 Ra8 (25...Nc7 26.Rc7 Kf8 27.Kf1+–) 26.a5 Kf8 (26...Nc7 27.Rc7 h6 28.a6+–) 27.b6 Ke7 (27...Nb6 28.Bb6 Ke7+–) 28.b7 Rf8 29.b8Q (better is 29.a6 Kd7 30.a7 Nc7+–) 29...Rb8 30.Bb8 Kd7 (30...Nb4 31.Rb5 Nc6 32.a6+–) 31.a6 Nb6 32.Rc7 Kd8 33.Rf7 Nd7 34.Rd7! Kd7 35.a7 (35.a7+–) 1–0. Buczinski,Henryk – Okrajek,Henryk, Siemianowice Slaskie, 1993.

5.a4 ab5 6.ab5 Ra1 7.Ba1 d5 8.e3 d4 9.Qb3 0–0 10.Bd3 Qd6 11.Nf3 de3 12.de3 Rd8 13.Be2 Nbd7 14.0–0 b6 15.Rd1 Qe7 16.Ne5 Ne5 17.Be5 Rd1 18.Qd1 Bd6 19.Bd6 Qd6 20.Qd6 cd6 21.Bf3 Nd7 22.Nc3 Nc5 23.Be2 Bb7 24.f3 f5 25.Kf1 Kf7 26.Ke1 Kf6 27.Kd2 g5 28.h3 h6 29.Kc2 Ke5 30.Nd1 d5 31.Kc3 f4 32.Nb2 fe3 33.Nd3 Nd3 34.Kd3 d4 35.g3 Ba8 36.f4 gf4 37.gf4 Kf4 38.Kd4 Bf3 39.Kd3 Be2 40.Ke2 Ke5 41.Ke3 Kd6 42.Ke4 Kc5 43.Ke5 Kc4 44.Ke6 Kb5 45.Kd5 Ka4 46.Kc4 b5 47.Kc3 Ka3 48.Kc2 b4 49.Kb1 Kb3 50.h4 h5 51.Ka1 Kc2 52.Ka2 b3 0–1. Trkn – hepkat, itsyourturn.com, 2000.

4.d4 Bb4

5.c3 Ba5 6.Na3 d5 7.Nc2 0–0 8.a4 c6 9.f3 cb5 10.ab5 b6 11.Na3 Nbd7 12.Qa4 e5 13.de5 Ne5 14.Nc2 Nc4 15.Qb3 Nd7 16.Ba3 Re8 17.Bb4 Bb4 18.Nb4 Nc5 19.Qb1 g6 20.Kf2 Bf5 21.Qc1? Re3 22.g4? Bd7 23.h4? Bb5 24.Kg2 Nb3 25.Qb1 Na1 26.Qa1 Qd6 27.Nd3 a5 28.Nh3 Rae8 29.Qd1 Rd3! 30.Qd3 Ne3 31.Kf2 Bd3 32.ed3 Ng4! 33.fg4 Qc5 34.Kg2 Qc3 35.Nf2 a4 36.Rh3 a3 37.d4 Qh3! 38.Kh3 a2 39.Bg2 a1Q 40.g5 Qd4 41.Ng4 b5 42.Nf6 Qf6! 43.gf6 b4 44.Bd5 Rc8 45.Kg4 Rc3 46.h5 b3 47.Bb3 Rb3 48.hg6 hg6 49.Kg5 Rg3 50.Kh4 Rg1 51.Kh3 Kh7 52.Kh2 Rg5 53.Kh3 Kh6 54.Kh4 Rg1 55.Kh3 Kg5 56.Kh2 Rg4 57.Kh3 Kf4 58.Kh2 Rg5 59.Kh3 Rg4 60.Kh2 Kf3 61.Kh3 Rg5 62.Kh4 Rg1 63.Kh3 Rh1 0–1. poganinbezdom (1645) – uzi26ma2, kurnik, 2011.

5.c3 Be7 6.Nd2 d5 7.e3 0–0 8.Ngf3 Ne4 (8...a6 9.Qa4=) 9.Bd3 f5 10.0–0 Nd7 11.a4 g5 (11...a6 12.c4+=) 12.Be2 g4 13.Ne5 Ne5 14.de5 a6 15.c4 Bb4 16.Ne4 de4 17.Qb3 Qe7 18.a5 h5 19.Rfb1 Bc5 20.Bd4 Rf7 21.Qb2 Bd7 22.Bc5 Qc5 ½–½. Wantoch_Rekowski,Jacek (2305) – Krol,Wladyslaw (2390), 3. Email Team Championship Poland, 2006.

5.c3 Be7 6.e3 0–0 7.c4 d5 8.Nf3 c6 9.Nbd2 cb5 10.cb5 Bd7 11.Bd3 Qb6 12.a4 a6 13.0–0 ab5 14.ab5 Ra1 15.Ba1 Bd6 16.Qe2 Ne4 17.Be4 de4= 18.Ne4 Bb5 19.Rb1 Be2 20.Rb6 (20.Rb6 Rc8 21.Bb2+/–) 1–0. pierre (1740) – fsakvador, internet, 2006.

5.Nd2 d5 6.Ngf3 Ne4 7.e3 Bd7 8.c3 Nc3?? 9.Qb3+– Nb5 10.Qb4 a6 11.Bd3 Nc6 12.Qb3 Na5 13.Qc2 h6 14.0–0 b6 15.Ne5 Nd6 16.Rfc1 Ra7 17.Ba3 0–0 18.Bb4 Re8 19.Bh7 Kf8 20.Qc7! Rc7 21.Bd6 Re7 22.Rc7 Nc4 23.Rd7 Qd7 24.Nd7 Ke8 25.Be7 Ke7 26.Nc4 dc4 27.Nb6 g6 28.Nc4 Kf8 29.Rb1 Kg7 30.Rb7 Kh7 31.Rf7 Kg8 32.Rf6 (32.Rf6 g5 33.Re6+–) 1–0. pierred (2595) – grahamtrue (2070), net–chess.com, 2008.

4.d4 Bb6

5.Nd2 Ba5 6.c3 =.

5.Nd2 d5 6.e3 c6 (6...a6 7.Ngf3=) 7.Ngf3 0–0 (7...Bd7 8.bc6 Nc6 9.c4=) 8.bc6 (8.a4 Bc7=) 8...bc6 (8...Nc6 9.Bd3=) 9.Be2 (9.c4 Bc7+=) 9...Bc7 (9...c5 10.dc5 Bc5 11.0–0=) 10.0–0+= Re8 (10...Nbd7 11.c4+=) 11.c4 Nbd7 12.Rb1 Nf8 (12...Bb7 13.Qc2+=) 13.cd5 (13.Ne5 Bd7+/–) 13...cd5+= 14.Nb3 Ng6 15.Nc5 e5 (15...Bd6 16.Qc2+=) 16.Bb5 (16.de5 Ne5 17.Be5 Be5+/–) 16...Re7 17.de5 Ne5 18.Ne5 Be5 19.Be5 Re5 20.Qd4 (20.Bc6 Bf5 21.Qd4 Rc8 22.Qe5 Bb1 23.Rb1 Rc6+=) 20...Qd6+= 21.Rfc1 Rh5 (21...Bf5 22.Rb4+=) 22.g3 (better is 22.h3+=) 22...Ng4? (better is 22...Bf5!? 23.Rb3 Rg5+=) 23.Be2+– Rh2? (better is 23...Qf6 24.Qf6 gf6+–) 24.Bg4 Bg4 25.Kh2 Qh6 26.Kg1 Bf3 27.Qh4 Qg6 28.Qf4 Bh5 29.Qb8! Rb8 30.Rb8# 1–0. Bonetti,Shane – guest1026, ICC, 2002.

5.e3= 0–0 6.Nf3 d5 7.Bd3 c5 8.dc5 Bc5 9.0–0 Nbd7 10.Nbd2 Re8 11.Nb3 Bb6 12.Ne5 Ne5 13.Be5 Nd7 14.Bg3 Bc7 15.Bc7 Qc7 16.c4 dc4 17.Rc1 Nb6 18.Nd2= Rd8 19.Nc4+= Nc4 20.Qe2 Bd7 21.Rc4 Qa5 22.a4 Rac8 23.Qg4 (23.Qg4 a6 24.Rc8 Rc8 25.Qe4+–) 1–0. pierre (1885) – yaunootz, internet, 2006.

5.e3 a6 6.c4 ab5 7.cb5 c6 8.Nc3 0–0 9.Bd3 d5 10.Nf3 Re8 11.0–0 Nbd7 12.Rc1 e5 13.de5 Ng4 14.bc6 bc6 15.e6 fe6 16.Re1 e5 17.h3 Nf2 18.Kf2 e4 19.Nd5 cd5 (worse is 19...ed3 A) worse is 20.Nb6 Qb6 (20...Nb6?! 21.Rc6 Bf5 22.Qb3 Nd5 23.Bd4=) 21.Qb3 Qb3 22.ab3 Ra2–/+; B) 20.Qb3 Kh8 21.Nb6 Nb6 22.Qf7+/–) 20.Be4 de4 21.Qd5 Kh8 22.Qa8 ef3 23.gf3?? (23.Qc8 Qc8 24.Rc8 Rc8 25.gf3–/+) 23...Qh4–+ 24.Kg2 (24.Kf1 Nf8 25.Rc8 Qh3 26.Kg1 Rc8 27.Qe4–+) 24...Qg5 (24...Nc5 25.Bf6 Qh3 26.Kg1 gf6–+) 25.Kh2= Nc5?? (better is 25...Qd8 26.Rg1 Bc7 27.f4 Nf6 28.Bf6 gf6=) 26.Rg1+– Bc7 27.f4 Bf4 28.ef4 Qf4 29.Rg3 Qf2?? (29...h6 30.Qf3 Qf3 31.Bg7 Kh7 32.Rf3 Bb7+–) 30.Rg2 Qf4 31.Kh1 (31.Kh1 Ne6 32.Qc8+–) 1–0. Bonetti,Shane – Assassinus, ICC, 2002.

5.e3= c6 6.c4 (6.Nf3 d5=) 6...d6 (6...d5 7.Nf3=) 7.Nf3 0–0 (7...Ba5 8.Nc3=) 8.Nc3 (8.Bd3 cb5 9.cb5 a6=) 8...cb5 9.cb5 d5 (9...a6 10.Rc1=) 10.Bd3+= Nbd7 (10...a6 11.0–0+=) 11.0–0 Re8 12.Rc1 (12.Qc2 Bc7+=) 12...Nf8 (12...Bc7 13.Qb3+=) 13.Qc2 (13.Ba3 Bc7+/–) 13...Bd7+= 14.Ne5 Rc8 (14...Ba5 15.Na4+/–) 15.Nd7 (15.Qa4 Ba5+/–) 15...Qd7 16.a4 Ng6 17.Qd2 Bc7 18.Bc2 (18.Ba3 Ba5=) 18...Qd6 19.g3 Ba5 (19...Qb4 20.Bd3=) 20.Rfd1 (20.Ne4! de4 21.Qa5=) 20...Qb4+= 21.Bd3 (21.Ba1+=) 21...Qd6 (21...Rc7!?+=) 22.Rc2= Nd7 23.Rdc1 Nb6 24.Qd1 Nc4 (24...Qb4 25.Ba1=) 25.Ba1 (25.Ne4 Qb4 26.Bc4 de4+=) 25...Na3 (25...Rc7 26.Ne4 de4 27.Bc4=) 26.Ne4 Qd7 (26...Qf8 27.Rc8 Rc8 28.Bb2=) 27.Rc8+/– Rc8 28.Nc5 Qe7 29.Qb3 Nc4 30.Bc4 dc4 (30...b6 31.Nd3+/–) 31.Rc4 (worse is 31.Qc4 b6–/+) 31...Qc7 (31...Rc7 32.Bc3 Bc3 33.Qc3+/–) 32.Bc3 Bc3 33.Rc3 (worse is 33.Qc3 b6+=) 33...Qe7 (33...Qb6 34.Nd3 Rc7 35.Qc2 Rc3 36.Qc3+–) 34.Ne4 (34.b6 ab6 35.Qb6 Rc6+–) 34...Qd7 (34...Rc3 35.Qc3 b6 36.Qc6+/–) 35.Rc8+– Qc8 36.Qc3 (36.b6 Qc1 37.Kg2 ab6 38.Qb6 Qc8+–) 36...Qc3 37.Nc3+– Ne7 38.e4 f6 39.d5 ed5 40.ed5 Nf5 41.Ne4 Kf7 42.g4 Nh6 43.f3 b6 44.Nd6 Ke7 45.Nc8 Kd7 46.Na7 Nf7 47.f4 Nd6 48.Nc6 Ne4 49.a5+– ba5 50.b6 The passed pawn on b6 will quickly become a dangerous weapon 50...Nc5 51.Na5 Kc8 52.h4 Kd7 53.g5 fg5 54.fg5 Kd6 55.b7 Kc7 56.b8Q Kb8 57.Nc4 Kc7 58.Kf2 Ne4 59.Ke3 Ng3 60.Kf4 Ne2 61.Ke5 Kd7 62.d6 Nc3 63.Nb6 Kd8 64.d7 Nb5 65.h5 Nc7 66.Kd6 Nb5 67.Ke6 Nd4 68.Kf7 Nf3 69.g6 hg6 70.hg6 (70.hg6 Ne5 71.Kg7 Ng6 72.Kg6+–) 1–0. Bonetti,Shane – CRUSHER5000 (1880), ICC, 2002.

5.e3 d5 6.Bd3 Qd6 7.Nd2 0–0 (7...Qb4 8.Qc1= (8.Qb1 0–0 9.a4 c6 10.c3 Qe7 11.Ba3+/–; 8.Bc1 0–0 9.a4 Re8 10.Ne2 c6 11.a5+=; 8.Rb1 Qa5 9.a3 Bd7 10.Qe2 c5 11.bc6=) 8...a6 9.a4 Bd7 10.a5 Bd4 11.Bd4+–; 7...a6 8.a4 (8.c4 Ba5 9.c5 Qe7 10.Ngf3 ab5 11.Bb5=) 8...Qb4 9.Ba3 Qc3 10.Ne2 Qa5 11.c3+/–) 8.Ngf3 (8.a4 Ba5 9.Ngf3 Ne4 10.c3 Nc3 11.Qb3+=) 8...Bd7 (8...Qb4 9.Qc1 Re8 10.0–0+= c6 11.a4+=; 8...a6 9.a4 ab5 10.ab5 Ra1 11.Qa1+=) 9.a4+/– Ba5 10.0–0 c6 (10...Qe7 11.c3+/–) 11.c4 (11.Nb3+/–) 11...Bc8? (better is 11...Qc7+=) 12.Ba3+– Qc7 13.Bf8 Kf8 14.Qe2 a6 15.c5 b6 16.Nb3 Bb4 (16...bc5 17.Nc5 Bb6 18.Rac1+– (18.ba6?! Bc5 19.dc5 e5+/–)) 17.cb6 Qb6 18.a5 Qd8 19.b6 Nbd7 20.Rfc1 Bb7 21.e4 de4 22.Be4 Ne4 23.Qe4 Nf6 24.Qe2 Nd5 (24...Kg8 25.Nc5 Bc5 26.Rc5+–) 25.Nc5 Bc5 26.Rc5 Qf6 27.Ne5 Qe7 28.Nc6 Qd6 29.Qe5 Qd7 30.Rac1 Rc8 31.Nb4! Rc5 32.Rc5 f6 33.Qb8 (33.Qb8 Qe8 34.Qb7+–) 1–0. Franke,CP – Fueloep,P, corr ICCF EU/M/Gr33 (year?).

5.e3= d5 6.Nf3 =.

4.e3 0–0

5.a4 d5 6.d4 Bd6 7.c4 dc4 8.Nd2 c6 9.Ngf3 c3 10.Bc3 cb5 11.Bb5 Nd5 12.Ne4 Nc3 13.Nc3 a6 14.Bd3 Qa5 15.Qc2 Bb4 16.Kd2 Bc3 17.Qc3 Qc3 18.Kc3 Bd7 19.e4 Nc6 20.Rhb1 Rac8 21.Kd2 Na5 22.h3 Rc7 23.Ke3 Rfc8 24.Ne5 Be8 25.Ke2 Nc6 26.Nc6 Bc6 27.a5 Rd8 28.Ke3 Rdc8 29.Re1 Bd7 30.Kf4 Rc3 31.Red1 R8c7 32.Rab1 Be8 33.Ra1 Rc8 34.Ke5+/– Bd7 35.Kd6 Bb5 36.Bb5+/– ab5 37.Rdb1 R8c6 38.Ke7 Rc7 39.Kd6 R3c6 40.Ke5 f6 41.Kf4 Rc2 42.Kg3 R2c4 43.Rb5 Rd4 44.Rab1 Rdd7 45.f4 h6 46.Kg4 g6 47.R1b3 Kf7 48.Kf3 g5 49.g3 Ke7 50.h4 gf4 51.gf4 Kf7 52.h5 Kg7 53.f5 Kf7 54.R5b4 Re7 55.Kf4 Red7 56.Rb6 ef5 57.ef5 Rc4 58.Kf3 Rc5 59.Rb7 Rf5 60.Kg4 Rg5 61.Kh4 Rb7 62.Rb7 Ke6 63.a6 Rg8 64.a7 Ra8 65.Kg4 Ke5 66.Rh7 Rg8 67.Kh3 Rf8? 68.Rh6+– Ra8 69.Rh7 Kf4 70.Kh4 Rg8 71.Rf7 Kf5 72.h6 Rg4 73.Kh3 Rg8 74.h7 Rc8 75.Rc7 Rd8 76.Rg7 Ke5 77.Rg8 Rd3 78.Kg4 f5 79.Kg5 Rg3 80.Kh4 Ra3 81.h8Q Ke6 82.Rg6 Kd5 83.Qd8 Kc4 84.Rc6 Kb3 85.Qd3 Kb2 86.Rc2 Ka1 87.Qd1# 1–0. Crux_044b – Ozwald_043, WB, 2000.

5.c4 d6 6.Nf3 Nbd7 7.a4 a5 8.Be2 e5 9.0–0 Re8 10.d4 ed4 11.Nd4 Nf8 12.Nd2 Bd7 13.Bf3 Rb8 14.N2b3 Bd4 15.Nd4 b6 16.Nc6 Bc6 17.Bc6 Re7 18.Bf6+– gf6 19.f4 Re3 20.Qd4 Qe7 21.f5 Kh8 22.h3 Qe5 23.Qh4 Rg3 24.Bd5 Nd7 25.Rae1 Qc3 26.Re7 Rbg8?? 27.Rd7+– Rh3 28.Qf2 Rhg3 29.Rc7 Qe5 30.Bf7 Rf8?? 31.Be6 Rg5 32.Qf4 Qf4 33.Rf4 Rg3 34.Rh4 Rg7 35.Rg7 Kg7 36.Kf2 Rd8 37.Ke3 Rb8 38.Kd4 Rb7 39.Kd5 Rc7 40.Rg4 Kh6 41.Rg8 Rc5 42.Kd6 Re5 43.Kc6 Re2 44.Kb6 Re5 45.c5 Re4 46.c6 Ra4 47.c7 Rb4 48.c8Q a4 49.Qf8 Kh5 50.Qg7 (50.Qg7 Rb5 51.Kb5 a3 52.Qh7; 50.Bf7 Kh4 51.Qb4) 1–0. carocan (1715) – kostrzanin2 (1615), kurnik, 2011.

5.d4 Bb4 6.c3 (6.Bc3 Be7+=) 6...Be7 7.Bd3 c6 (7...a6 8.ba6 b6 9.Qf3+=) 8.c4 (8.a4 a6=) 8...Bb4 (8...d5 9.Nf3+=) 9.Bc3= Qa5 (9...Be7 10.Nf3=) 10.Qd2+= Bc3 11.Nc3 (11.Qc3 Qc7+=) 11...d5 12.Nf3 (12.Ne4 Qd2 13.Nd2 cb5 14.cd5 ed5 15.Bb5 Bf5=) 12...cb5 (12...dc4 13.Bc4 cb5 14.Bb5+=) 13.cb5 Ne4?? (better is 13...a6+=) 14.Ne4+– (14.Ne4 Qd8 15.Nc3+–) 1–0. Bonetti,Shane – guest459, ICC, 2002.

5.d4 Bb6 6.c4 d6 7.Nf3 d5 8.Nc3 c6 9.Bd3 dc4 10.Bc4 a6 11.ba6 Na6 12.0–0 Nc7 13.a4 Ncd5 0–1. xadrezpg (2340) – croach (2360), net–chess.com, 2010.

5.d4 Bd6 6.Nd2 Nd5 7.c4 Nf6 8.Ngf3 a6 9.Bd3 ab5 10.cb5 Nd5 11.0–0 c6 12.a4 Nb6 13.e4 Bb4 14.Qb3 Bd2 15.Nd2+/– d5 16.e5 Qg5 17.f4 Qd8 18.Bc3 cb5 19.ab5 Ra1 20.Ra1 N8d7 21.Bb4 Re8 22.Qc3 Nf8 23.Bd6 Qd7 24.Rc1+– Ng6 25.Bg6 fg6 26.Qa5 Nc4 27.Nc4 dc4 28.Rc4 Qf7 29.Qa8 Bd7 30.Qb7 Qf4 31.h3 h5 32.b6 Bb5 33.Rc7 Qf1 34.Kh2 Qf4 35.g3 Qf2 36.Qg2 Qg2 37.Kg2 Rb8 38.d5! Rb6 39.Rc8 Kh7 40.de6 Rc6 41.Rd8 Rc2 42.Kf3 Bc6 43.Ke3 Rc3 44.Kd4 Rg3 45.e7 Rg2 46.e6 Ra2 47.e8Q Be8 48.Re8 Rd2 49.Kc5 Rc2 50.Kb5 1–0. pcmvr – egis (2370), net–chess.com, 2010.

5.Qf3 Be7 =.

5.Nf3 a6 6.Nc3 +=.

5.Nf3 a6 6.d4 Bb4 7.c3 Be7 8.a4 ab5 9.Bb5 d5 10.0–0 Nbd7 11.Nbd2 c6 12.Bd3 b6 13.Qc2 Qc7 14.c4 Bd6 15.Bc3 Bb7 16.Rfc1 Rfb8 17.cd5 ed5 18.Bf5 Bc8 19.Nb3 c5 20.Rd1 Bb7 21.a5 c4 22.ab6 Nb6 23.Nc5 Bc8 24.Rdb1 Bf5 25.Qf5 Qc8 26.Qc8 Nc8 27.Rb8 Ra1 28.Ba1 Bb8 29.Ne5 Na7 30.f3 Bc7 31.Na4 Nb5=+ 32.Nc3 Nc3 33.Bc3 Be5 34.de5 Nd7 35.Bd4 h5 36.h3 Nf8 37.Bc3 Ne6 38.Bb4 h4 39.Kf2 f5 40.ef6= gf6 41.Bc3 Kf7=+ 42.g3 hg3 43.Kg3 Nc7 44.Kf2 Nb5 45.Bb2 f5 46.Be5 Ke6 47.Bg3 d4 48.ed4 Nd4 49.Ke3 Kd5 50.Be1 Nb5 51.Bb4 Ke5 52.h4 f4 53.Kd2 Kf5 54.Bc5 Kg6 55.Bg1 Kh5 56.Bh2 Kh4 57.Bf4 Nd4 58.Be3 Nf3 59.Kc3 ½–½. b4_player – opponent, gamecolony.com, 2007.

5.Nf3 b6 6.a4 Bb7 7.Be2 Re8 8.0–0 d6 9.d4 Bb4 10.c3 Ba5 11.Nfd2 Nbd7 12.Nc4+= e5 13.Nbd2 c5?? 14.Nd6+– Re6 15.Nb7 ed4 16.Nd8 Rd8 17.cd4 cd4 18.Bd4 (18.Bd4 Nc5 19.Bc4+–) 1–0. pierre – the yid, ChessHere.com, 2005.

5.Nf3 d6 6.d4 Bb6 =.

5.Nf3 d6 6.Be2 a6 7.c4 ab5 8.cb5 e5 9.Nc3 e4 10.Nd4 d5 11.Qb3 Bd4 12.ed4 Qd6 13.a4 Re8 14.0–0 c6 15.a5 Ng4 16.Bg4 Bg4 17.a6 ba6–/+ 18.h3 Be6 19.b6 Nd7 20.Na4 Rab8 21.Rfc1 Bf5 22.Rc3 Qh6 23.Rd1 Re6 24.Rg3 Rg6 25.Ba3 a5 26.Rg6 Qg6 27.Bc5 Rb7 28.Re1 Be6 29.Be7 Qh6 30.Rd1 Qf4 31.Bc5 Bf5 32.Qc3 Qg5 33.Bd6 Nb8 34.Bg3 Bc8 35.Qa5 f5 36.Nc5 f4 37.Nb7 fg3 38.Rf1 Qf6 39.Qa8 Qf4 40.Nc5 Qd6 41.b7 Bb7 42.Qb7 h5 43.fg3 Kh7 44.Rf5 e3 45.Qf7 e2 46.Rh5 Qh6 47.Rh6 Kh6 48.Kf2 Nd7 49.Ne6 e1Q 50.Ke1 Nb6 51.Qg7 (51.Qg7 Kh5 52.Qg5) 1–0. usingprogram – slihuatamanio, internet, 2011.

5.Nf3 d6 6.Be2 c6 7.c4 (7.0–0 cb5 8.d4 Bb6=) 7...Nbd7 (7...cb5 8.cb5 a6 9.0–0=) 8.0–0 e5 (8...a6 9.d4 Bb6 10.bc6 bc6 11.Nc3=) 9.a4 (9.d4 ed4 10.ed4 Bb4=) 9...a5 (9...e4 10.Nd4=) 10.d4+= ed4 11.Nd4 Ne5 12.Nd2 Re8 (12...Qe7 13.Qc2=) 13.N2f3 (13.N2b3 Bb4=) 13...Bd4 (13...Qc7 14.Rb1=) 14.ed4 (14.Qd4 Bg4+=) 14...Nf3 15.Bf3 d5 16.c5 Bf5 17.b6 (17.Re1 Ne4=) 17...Ne4 18.g3 (18.Re1 Qf6 19.Be4 de4+=) 18...Ng5 (18...Qf6 19.Rc1+=) 19.Bg2 Qd7 (19...Qf6 20.Re1=) 20.h4 (20.Bc1 Ne4=) 20...Ne4 21.Ra3 (21.Re1 Re7=) 21...Re7 22.Re3 Rae8 23.Rfe1 Bg4? (better is 23...Kh8=) 24.f3+– Qf5 (24...Bh5 25.g4 Bg4 26.fg4+–) 25.Kh2 (25.Bc1 Bh3+–) 25...Bh5 26.Qb1 (26.fe4?! Bd1 27.ef5 Re3 28.Rd1 Rb3+/–) 26...g5? (26...Bf3 27.Bf3 Qg6 28.Be4 Re4 29.Re4 de4+–) 27.fe4 de4 28.Re4 gh4 29.gh4 Qf6 30.Rf1 Qg6 31.Re7 Re7 32.Qg6 hg6 33.Rb1 Re3 34.d5 (34.d5 cd5 35.c6 bc6 36.Bf6+–) 1–0. Gerold,Guenter – Kuntermann, Bad Neustadt, 2000.

5.Nf3 d6 6.Be2 e5 7.d4 ed4 8.ed4 Bb4 9.c3 =.

5.Nf3 Qe7 6.Be2 a6 7.a4 d5 8.0–0 c6 9.d4 Bd6 10.c4 ab5 11.ab5 Ra1 12.Ba1 dc4 13.Bc4 Rd8 14.Nc3 Nbd7 15.bc6 bc6 16.Qc2 e5 17.Ne4 ed4 18.Nf6 Nf6= 19.Nd4 Qc7 20.h3 c5 21.Nb5 Bh2 22.Kh1+– Qb8 23.Rb1 Bc7? 24.Nd6! Qa8? 25.Nf7 Kf8 26.Nd8 Bd8 27.Qd3 Bh3 28.Qd6 Be7 29.Rb8 (29.Rb8 Bc8 30.Qe5+–) 1–0. algernon (2400) – croach (2270), net–chess.com, 2008.

5.Nf3 h6 6.d4 Bb6 7.Nbd2 c5 8.Bd3 cd4 9.ed4 d5 10.0–0 Ng4 11.h3 Nf6 12.c4 dc4 13.Nc4 Bc7 14.Ba3 Re8 15.Qb3 e5? 16.de5+– Nd5 17.Rad1 Be5?? 18.Nce5 Be6 19.Be4 Nf6 20.Rd8 Bb3 21.Re8 Ne8 22.ab3 a6 23.Rd1 ab5 24.Rd8 Ra3 25.Re8# 1–0. marre – 0ppo, internet, 2010.

5.Nf3 h6 6.d4 Be7 7.Nbd2 d5 8.Bd3 Nbd7 9.Qe2 Bd6 10.0–0 a6 11.ba6 ba6 12.c4 c6 13.e4 Bb8 14.e5 Nh7 15.Rab1 Qc7 16.Rfc1 f6 17.Ba3 c5? 18.cd5 fe5 19.d6 (19.d6 Qa7 20.dc5+–; < 19.de6 Ndf6 20.de5 Ba7+–) 1–0. orane – xapril, caissa.com, 2007.

5.Nf3 d5

6.a3 a6 7.Ne5 +=.

6.a3 c6 7.a4 cb5 (7...Ne4 8.Nc3=) 8.ab5 Bd7 9.Be2 Qb6 (9...a5 10.Nc3=) 10.Na3 (10.Bf6 gf6 11.Nc3 Bb4+=) 10...Ba3 (10...Rc8 11.Bf6 gf6 12.0–0=) 11.Ba3+= Bb5 (11...Rc8!? 12.Qb1 Qc7=) 12.Bf8+/– Kf8 (12...Be2 13.Qe2 Kf8 14.0–0+/–) 13.Bb5 (better is 13.Qb1!? Ba6 14.Qb6 ab6 15.d4+–) 13...Qb5+/– 14.Nd4 Qc4 15.Qe2 (15.Qb1 b6+/–) 15...Qc5 (15...e5 16.Qc4 dc4 17.Nf5+/–) 16.Qb5 (16.0–0 e5 17.Nf3 Nc6+/–) 16...Qc7 (16...Qb5 17.Nb5 Nc6 18.Ke2+=) 17.0–0 e5 (17...Nc6 18.Nc6 Qc6 19.Qd3+/–) 18.Nf5 Ng4?? (better is 18...Kg8+/–) 19.h3 (19.Qb4 Kg8 20.Qg4 f6+–) 19...a6? (19...Nf6 20.f4 e4+/–) 20.Qb4 (20.hg4?! ab5 21.Ra8 g6+=) 20...Ke8 (20...Kg8 21.Qg4 (worse is 21.hg4 Nc6 22.Qc5 Rd8+–) 21...g6 22.d4+–) 21.Ng7 (21.Qg4 g6 22.Qa4 b5+–; worse is 21.hg4 f6+–) 21...Kd7 22.Qg4 Kd6 23.d4 ed4 24.ed4 Qc2 25.Rac1 Qa4 26.Qf4 Kd7 27.Rc7 Kd8+– 28.Qf7 Nc6 29.Qd7# (29.Ne6#) 1–0. Lin,Ang Keng – Heitmann,Kaustubha, University Open, 2003.

6.c4 b6 7.d4 (7.Ne5 A) 7...Bb7 8.Qf3 (8.d4 Bd6 9.Be2 a6 10.0–0 dc4 11.Bc4+=; 8.cd5 Nd5 9.d4 Bb4 10.Nd2 a6 11.a3+=) 8...a6 9.d4 Bb4 10.Bc3 Bd6 11.Bd3=; B) 7...a6 8.Qf3 (8.d4 Bd6 9.Qf3 Ne4 10.Bd3 Bb4 11.Kd1+=) 8...Bb7 9.d4 Bd6 10.Bd3 Ra7 11.cd5+=) 7...Bd6 (7...Bb4 8.Nbd2 (8.Nc3 a6 9.Qb3 c5 10.dc5 bc5 11.Be2=; 8.Bc3 Bd6 9.Ne5 a6 10.Bd3 Bb7 11.Qf3=) 8...a6 9.Qb3 c5 10.bc6 Nc6 11.Ba3=) 8.Nbd2 (8.cd5 ed5 9.Bd3 a6 10.a4 ab5 11.ab5=; 8.Ba3 c5 9.bc6 Nc6 10.Bd6 Qd6 11.Nbd2=; 8.Qc2 dc4 9.Bc4 a6 10.0–0 ab5 11.Bb5=; 8.Qa4 Bb7 9.cd5 ed5 10.Ba3 a6 11.Bd6+=; 8.Ne5 a6 9.Qc2 dc4 10.Bc4 ab5 11.Bb5+=) 8...Bb7 (8...a6 9.Qc2 dc4 10.a4 c6 11.Bc4+=) 9.Be2 c6 (9...a6 10.0–0 ab5 11.cb5=) 10.0–0 dc4 (10...cb5 11.cb5=) 11.Bc4 (11.Nc4=) 11...cb5 12.Bb5 Nc6 13.Qa4 Ne7 14.Rfc1 a6 15.Be2 b5 16.Qd1 Qd7 17.Nb3 Rfc8 18.Nc5 Bc5 19.Rc5 (19.dc5 Qd1 20.Bd1 Ne4=) 19...Ne4= 20.Ne5 Qd8 21.Rcc1 Nd5 22.Bf3 Ng5 23.Be2 Qf6 (better is 23...Nb6=) 24.f4?? (24.Nd7 Qg6 25.Nc5=) 24...Ne3–+ 25.fg5?? (25.Qd3 Qf4 26.Rc8 Rc8 27.Bc1 Rc1 28.Rc1 Ng2 29.Qc3 Nh3 30.Qh3 Qc1 31.Bf1–+) 25...Qg5 (25...Nd1?! 26.gf6 Nb2 27.Nd7–/+) 26.Bf3 Nd1 27.Rd1 Bf3 28.Nf3 Qe3 29.Kh1 Rc2 30.Bc1 Qf2 31.Rg1 Rac8 32.Bf4 R8c3 33.Rad1 Rf3 34.Bg3 Rg3 35.hg3 Qg3 (35...Qg3 36.Rd3 Qd3 37.Re1 Qg3 38.Re2 Rc1 39.Re1 Re1#; 35...Qe3 36.Rge1 Qg3 37.Rd2 Rd2 38.Re2 Re2 39.d5 Qg2#) 0–1. Grossmann,Philipp – Kellner,Robert, Oberpfalz–ch M1, 1999.

6.d4 Bb6 7.Be2 Nbd7 8.0–0 c5 9.c4 cd4 10.Nd4 e5 11.Nb3 d4 12.ed4+/– e4 13.c5 Bc7 14.d5 Re8?? 15.d6+– Bb8 16.N1d2?? Ne5?? 17.h3 Nd3 18.Bd3 ed3 19.Nf3 Bf5 20.Re1 Re1 21.Qe1 Ne4 22.Rd1 Ng5? 23.Qc3 Nf3+/– 24.gf3 Qg5 25.Kh2 Qf4= 26.Kg2 Qg5 27.Kh2 Qf4= 28.Kg2 Qg5 29.Kh2 ½–½. nizinna – bobyfischer (1670), kurnik, 2011.

6.d4 Bd6 7.Nbd2 a6 8.a4 Ne4 9.Bd3 Nd2 10.Qd2 ab5 11.ab5 Ra1 12.Ba1 Nd7 13.0–0 f5 14.Bb2 Rf6 15.Qc3 Rg6 16.Ra1 Rh6 17.Ra7 Rf6 18.Ba3 Nb6 19.Ne5 Rf8 20.Bc5 Nd7 21.Bd6 cd6 22.Nd7 Qd7 23.Ra8 g5 24.f4 h6 25.b6 Kf7 26.Bf1 Qd8 27.Qb4 Qd7 28.c4 dc4 29.Qc4 Qd8 30.g3 Kg7 31.Bg2 Qb6 32.Rc8+– d5 33.Qa4 Qb1 34.Bf1 Rc8 35.Qd7 Kf6 36.Qc8 Qe1 37.Qh8 Kg6 38.Qe5 Kf7 39.g4! fg4 40.f5 ef5 41.Qd5 Kg6 42.Qe6 Kh5 43.Qf7 Kh4 44.Qf5 Qe3 45.Qf2 Qf2 46.Kf2 g3 47.hg3 Kh5 48.Kf3 Kg6 49.Ke4 h5 50.Ke5 Kf7 51.Kd6 Kf6 52.d5 1–0. Riepe,Bernhard – Hauschild,Achim, DESC, 2006.

6.d4 Be7 7.Bd3 a6 8.0–0 ab5 9.Bb5 c6 10.Bd3 Nbd7 11.c4 Re8 12.cd5 ed5 13.Nbd2 Nb6 14.Re1 Bg4 15.h3 Bh5 16.g4 Bg6=+ 17.Bg6 hg6 18.Kg2 Kh7 19.Ng5= Kg8 20.h4 Nh7 21.Nh7=+ Kh7 22.g5 Qd6 23.a4 Qe6 24.Bc3 Rh8 25.a5 Nc8 26.e4 Kg8 27.ed5 Qd5=+ 28.Qf3 Rh4 29.Qd5 cd5 30.Rab1 Kf8 31.Rb7+= Bg5? 32.Bb4 Kg8 33.Nf3 Rh5 34.Re8 Kh7 35.Rf7 Bc1 36.Rff8 g5 37.Ne5 (37...Rh2 38.Kg1 Rh1 39.Kh1 g6 40.Rf7 Kh6 41.Rh8) 1–0. gtate (2020) – rgiarrocco (2175), net–chess.com, 2006.

6.Be2 a6 7.a4 a5 8.0–0 b6 9.c4 Bb7 10.Na3 Qe7 11.Nc2 Rd8 12.d4 Bd6 13.Re1 Bb4 (13...dc4!? 14.Bc4 c6=) 14.Nb4+= Qb4 (better is 14...ab4!? 15.c5 bc5 16.dc5 Qc5 17.Bf6 gf6+=) 15.Ba3+– Qc3 16.c5 bc5 17.Bc5 Nbd7 (17...Ne4 18.Be7 Rd7 19.Rb1+–) 18.Ra3 (18.Be7!? Re8 19.Rc1 Qb2+–) 18...Qb2 19.Qd3 (better is 19.Be7!? Re8 20.Rb3+/–) 19...Nc5+= 20.dc5 e5? (better is 20...Ne4 21.Rb1 Qf6+=) 21.Rb1+– e4 22.Rb2 ed3 23.Bd3 Ne4 24.c6 Bc8 25.Be4 (better is 25.b6!? cb6 26.Rb6 Be6+–) 25...de4 26.Nd4 1–0. Dukaczewski,Piotr (2325) – Kardasz,Wladyslaw (1920), Druzynowe Mistrzostwa Polski Niewidomych Poland, 2008.

4.e3 a6

5.a4 0–0 6.Nf3 b6 (6...d6 7.Be2=+) 7.Be2 Bb7 8.0–0 a5 (8...d6 9.d3=) 9.d4 Be7 10.Nbd2 d5 11.Bd3 c5 12.bc6 Nc6 13.Rb1 Nb4 14.Be2 Rc8 (14...Ba6 15.c3 Nd3 16.Ne5 Nb2 17.Rb2 Be2 18.Qe2=) 15.c3 Nc6 16.Qb3 Rb8 17.Rfc1 Bd6 18.Ba3 Ba3 19.Qa3 Nd7 20.Qd6 Ra8 21.Bd3 Ne7 22.Ng5 (22.c4 dc4 23.Nc4 Bc6+/–) 22...h6+= 23.Ngf3 Nc8 (23...Bc6 24.Qa3+/–) 24.Qg3 Qf6 (24...Bc6 25.Ra1+/–) 25.Ne5 (25.Qc7 Qe7+/–) 25...Ne5+/– 26.de5 Qg5 27.Qg5 hg5 28.c4 Ba6 29.Be2 Ne7 30.Rb6 Rfb8 31.Rb8 Rb8 32.Kf1 Rb2 33.cd5 Rd2 34.Ba6 Nd5 35.Rc5 g4 36.Bb7 Rd1 37.Ke2 Rb1 38.Bd5 ed5 39.Rd5 Rb2 40.Rd2 Rb4 41.Rd4 Rb2 42.Ke1 Kf8 43.Rg4 g6 44.Rd4 Ke7 45.Rd5 Rb1 46.Ke2 Rb2 47.Kf3 Ke6 48.Ra5 Rb4 49.e4 Rb3 50.Kf4 Rb2 51.Ra6 Ke7 52.Kg3 Rb4 53.f3 Rc4 54.a5 Rc5 55.Ra7 Ke6 56.f4 Rc4 57.Ra6 Ke7 58.Kf3 Rc3 59.Kg4 Rc4 60.Ra7 Ke6 61.Rb7 Ra4 62.Rb6 Ke7 63.a6 Kd7 64.Rb7 Kc6 65.Rf7 (65…Ra2 66.Rf6 Kc5 67.g3 Rh2 68.Rg6+–) 1–0. Trkn – guest4515, ICC, 2004.

5.a4 d5 6.c4 c6 7.Qc2 Be7 8.d3 Bb4 9.Bc3 Bc3 10.Nc3 d4 11.ed4 Qd4 12.Nf3 Qf4 13.Be2 ab5 14.cb5 cb5 15.Nb5 Qb4 16.Nd2 0–0 17.0–0 Bd7 18.Rfb1 Qf4 19.Qc4 Qd2 0–1. Trkn – Fluido, itsyourturn.com, 2000.

5.a4 d5 6.d4 Bd6 7.c4 (7.Ba3 e5 (7...ab5 8.Bd6 cd6 9.Bb5 Bd7 10.Nc3 Qa5+=; 7...0–0 8.Nf3 ab5 9.Bb5 b6 10.Bd6 Qd6+=; 7...b6 8.Nf3 ab5 9.ab5 Ne4 10.Bd3 Bb4=) 8.Nf3 e4 9.Ne5 0–0 10.ba6 Na6+=; 7.Nd2 c6 (7...0–0 8.c4 dc4 9.Bc4 Nbd7 10.Ngf3 ab5=; 7...ab5 8.ab5 Ra1 9.Qa1 0–0 10.Ba3 Re8=; 7...Bd7 8.Ngf3 ab5 9.ab5 Ra1 10.Qa1 c6=; 7...Ra7 8.Ngf3 c6 9.c4 dc4 10.Bc4 ab5=) 8.c4 dc4 9.Bc4 ab5 10.ab5 Ra1=) 7...b6 (7...dc4 8.Bc4 0–0 9.Nf3 ab5 10.ab5 Ra1=) 8.Nd2 (8.Nc3 0–0 9.Nf3 Bb7 10.Qc2 Bb4=) 8...0–0 9.Qc2 (9.Ngf3 c6 10.bc6 Nc6=) 9...ab5 (9...dc4 10.Bc4 c6+=) 10.c5 (10.ab5 Ra1+=) 10...bc5 (10...Be7 11.ab5 Ra1 12.Ba1+=) 11.dc5= Be7 12.ab5 Ra1 13.Ba1 c6 14.b6 Nfd7 15.Nb3 Ba6 (15...Na6 16.Qc3 Bf6 17.Qa5 Nac5 18.Nc5 Nc5 19.Qc5 Ba1 20.Nf3–/+) 16.f4 (16.Nf3!?=) 16...Bf1+= 17.Kf1 Qc8 (17...f6 18.Nf3 Na6 19.Nfd4 Nac5 20.Nc6+=) 18.Bd4 (better is 18.Nf3!?=) 18...f6–/+ 19.Ne2 Na6 20.Kf2 (20.e4 e5 21.Bf2 d4 22.Ned4 ed4 23.Bd4 Kh8+=) 20...e5–/+ 21.Bb2 (better is 21.Rb1!?–/+) 21...Nac5–+ 22.Rc1 Nb3 23.Qb3 Qb7 24.e4? (24.Rb1–+) 24...Nc5 (24...Nb6?! 25.Kf1–+) 25.Qc2 Ne4 (25...Ne4 26.Kf1 Qb6–+) 0–1. Huelle,Gunter – Rudolph,Juergen, Leipzig VfB op 5th, 1998.

5.d4 Bb4 6.c3 Bd6 7.c4 ab5 8.cb5 c6 9.a4 Qa5 10.Nc3 Bb4 11.Qb3 Bc3?? 12.Bc3+= Qc7 13.Nf3 cb5 14.ab5 Ra1 15.Ba1 0–0 16.Be2 d5 17.0–0 Nbd7 18.Bb2 Nb6 19.Rc1 Qd7 20.Ne5 Qd8 21.Ba3 Re8 22.Bc5 Ne4 23.Bh5 g6 24.Bf3 Nd2 25.Qd1 Nf3 26.Qf3 Nc4?? 27.Qf7 Kh8 28.Nc4 dc4 29.Rc4 Bd7 30.d5 Qa5 31.Bd4 e5 32.Be5! Re5 33.Qf8 1–0. elsh1403 – lutkas11, kurnik, 2011.

5.d4 Bb6 6.c4 d5 7.Nc3 0–0 8.Nf3 ab5 9.cb5 c5 10.bc6 bc6 11.a4 Ba5 12.Bd3 Ne4 13.Qc1 c5 14.0–0 Nc3 15.Bc3 c4 16.Bb1 Nc6 17.e4 Rb8 18.Ra3 Qe7 19.Ra1 f6 20.Re1 Qd8 21.Ba5 Na5 22.Qc3 Rb3 23.Qc2 g6 24.Ba2 Ra3 25.Re3 Re3 26.fe3 Qc7 27.Qc3 Bd7 28.Rb1 Ba4 29.ed5 ed5 30.e4 de4 31.Nd2 Re8 32.Nc4 Nc4 33.Qc4 Qc4 34.Bc4 Kf8 35.Kf2 f5 36.Ke3 g5 37.g3 Rc8 38.Rb4 Bd7 39.d5 Ke7 40.h4 gh4 41.gh4 Kd6 42.Kd4 Kc7 43.Ba6 Ra8 44.Rb7 Kd6 45.Rb6 Ke7 46.Ke5 Kd8 47.d6 Ke8 48.Bc4 Rc8 49.Bd5 e3 50.Rb2 Kd8 51.Rg2 Rc1 52.Bf3 ½–½. pcmvr (2765) – bigart (2750), net–chess.com, 2014.

4.e3 b6

5.d4 Bd6 6.c4 Bb4 7.Nc3 Bb7 8.Nf3 Ne4 9.Qc2 Nc3 10.Bc3 Bc3 11.Qc3 Bf3 12.gf3 Qf6 13.Be2 d6 14.Rg1 Nd7 15.0–0–0 a6 16.a4 ab5 17.cb5 Ra4 18.Qc7 Ra1 19.Kb2 Rd1 20.Rd1 Ke7 21.f4 Ra8 22.Bf3 Ra5?? 23.Bc6+– e5 24.Qd7 Kf8 25.Qe8 1–0. elsh1403 – margas33, kurnik, 2011.

5.d4 Be7 6.Nd2 a6 7.a4 ab5 8.ab5 Ra1 9.Qa1 c6 (9...d5 10.Ngf3=) 10.Qa7+= Bd6 11.c4 Qc7 12.Qc7 Bc7 13.Bd3 (13.bc6 Nc6 14.e4 d5+=) 13...0–0 (13...d5!?=) 14.Ngf3 cb5 15.cb5 d5 16.Ke2 Nbd7 17.Rc1 Ne8 (17...Bd6!?+/–) 18.Ba3+– Bd6 19.Bd6 (19.Rc8?! Ba3 20.Rc6 Nef6+=) 19...Nd6 20.Rc6 Nb7 21.Nb3 Na5 22.Na5 ba5 The passed pawn on b5 quickly leads to threats 23.Kd2 Rd8 24.Ne5 Ne5 25.de5 Bd7 (25...Bb7 26.Rc7 Rb8+–) 26.Rc7 g6 (26...a4 27.b6 a3 28.Ra7+–) 27.b6 Be8 (27...Bc8+–) 28.b7 Rb8 29.Bb5!! (29.Bb5 Rb7 30.Rb7 Bb5 31.Rb5+–) 1–0. Woelfelschneider,Peter – Viereck, 2009.

5.Nf3 Bb7 6.Be2 0–0 7.0–0 d5 8.d4 Bd6 9.Nbd2 c5 10.c4 Nbd7 11.Rc1 a6 12.a4 ab5 13.ab5 Qc7 14.Qb3 (14.Bd3 Ra2 15.Qb3 Rfa8+=) 14...Ne4 15.h3 Nd2 16.Nd2 Rac8 17.Bf3 Nf6 (17...cd4 18.ed4 dc4 19.Rc4=) 18.Rfe1 (better is 18.dc5!? bc5 19.Bf6 dc4 20.Qc3 gf6 21.Qf6+/–) 18...Ne4 19.Ne4 de4 20.Be2 f5 21.Red1 Bh2 Black plans f4 22.Kh1 f4? (22...Bd6!?+=) 23.Kh2 (23.Bg4!? fe3 24.Be6 Kh8 25.Bc8 Bc8 26.fe3 Bd6+–) 23...f3+/– 24.Kg1 fe2 25.Re1 Rf5 26.Re2 Rcf8 27.dc5 Qf7 (27...bc5 28.Rd2+–) 28.Qc2 (better is 28.c6!? Rf2 29.Rf2 Qf2 30.Kh2 Bc8+–) 28...bc5 29.Rd1 Rg5 30.Qd2 (30.Kh1!?+/–) 30...Qf3+= 31.g3 Bc8 32.Ree1 e5 33.Qe2 Qe2 (better is 33...Qf7!? 34.Ba3 Qa7+=) 34.Re2+/– Bh3 35.Rd5 Bg4 36.Rc2 Bf3 37.Kf1 Rh5 38.Ke1 Rh1 39.Kd2 Rd1?? (better is 39...Bd1 40.Kc1 Bc2 41.Kc2 Rf2 42.Rd2 Rd2 43.Kd2 Rh2 44.Kc1 Kf7 45.Be5 Rh6–+) 40.Kc3+/– Rd3 41.Rd3 ed3 42.Kd3 e4 (42...Rd8!? 43.Kc3 Kf7+/–) 43.Kc3+– Bg2 (better is 43...Ra8+–) 44.Ba3 Bf1 45.Bc5 Bd3 (45...Rb8+–) 46.Ra2 (better is 46.Bf8 Bc2 47.Kc2 Kf8 48.b6+–) 46...Rb8 47.b6 Kf7 48.Ra7 (48.Ra7 Kf6 49.Rc7+–) 1–0. Matveenko,Yury (2135) – Leun,Victor (1960), Voronezh Region–ch Seniors, 2008.

4.e3 c6

5.a4 0–0 6.Nf3 d5 7.c4 cb5 8.ab5 a6 9.Ne5 Bd6 10.f4 Qc7 11.Qb3 Nbd7 12.Nd7 Nd7 13.cd5 Nc5 14.Qc3 f6 15.de6 Be6 16.Be2 Qb6 17.ba6 ba6 18.0–0 Ne4 19.Qd4 Nc5 20.Na3 Rfd8 21.Nc4 Bc4 22.Bc4 Kh8 23.Qc3 Ne4 24.Qc2 Qc6 25.d3 Rdc8 26.Rfc1 Nc5 27.Bd4 Nb7 28.Qb2 Nc5 29.Bf6 Bf8 30.Be5 Qd7 31.d4 Ne4 32.Ba6 Rc6 33.Bd3 Rc1 34.Qc1 Ra1 35.Qa1 Nf6 36.Qa8 Qe7 37.d5 Qb4 38.h3 Qe1 39.Kh2 Ng4 40.hg4 Qh4 41.Kg1 Qe1 42.Bf1 Qe3 43.Kh1 Kg8 44.Bd6 h6 45.Qf8 Kh7 46.Be5 Qa7 47.Bd3 g6 48.Qh8 1–0. CountFromHolland – ggaarrii, playchess.de, 2002.

5.a4 a6 6.Nf3 d6 7.d4 Bb6 8.Nbd2 Ba5 9.Bd3 0–0 10.0–0 Bd2 11.Qd2+/– h6 12.e4 c5 13.dc5+– dc5 14.Rfd1 b6 15.e5 Ng4?? 16.Qf4 h5 17.Bh7!! (17.Bh7 Kh8 18.Rd8 Rd8 19.Bd3+–) 1–0. pierre (2345) – the wrecker (1655), ChessWorld.net, 2005.

5.a4 d5 6.Nf3 0–0 7.d4 Bb4 8.Bc3 Qe7 9.Bb4 Qb4 10.c3 Qd6 11.Be2 Nbd7 12.0–0 e5 13.de5 Ne5 14.Ne5 Qe5 15.Qd4 Qd4 16.cd4+= Bd7 17.Nd2 Rfc8 18.Nf3 Ne4 19.Ne5+= Be8 20.Rfc1 f6 21.Nf3 cb5=+ 22.ab5 Nc3 23.Rc2 Ne2–/+ 24.Re2 Bb5 25.Rb2 Bc6 26.Rba2 a6 27.Nd2 Bb5 28.g3 Rc3 29.Nf3 b6 30.Nh4 Bc4 31.Ra3? Ra3–+ 32.Ra3 a5 33.Nf5 b5 34.Ne7 Kf7 35.Nc6 a4 36.Nb4 Rc8 37.h4 Bb3 38.Nd3 Ke6 39.Nc5 Rc5! 40.dc5 Kd7 41.Kf1 Kc6 42.Ke2 Kc5 43.Kd3 b4 44.Ra1 a3 45.f4 Bc4 46.Kc2 b3 (46...b3 47.Kc3 b2–+) 0–1. tanto (1715) – supertimchan (1745), net–chess.com, 2002.

5.a4 d5 6.Nf3 Nbd7 7.c4 0–0 8.Qb3 Ne4 9.a5 Nd6 (9...Bd6 10.d4+=) 10.Qc3 (10.cd5!? Nb5 11.de6 fe6 12.Qe6 Kh8 13.Ne5 Ne5 14.Qe5+/–) 10...f6 (10...Nf6!?=) 11.d4+= Ne4 12.Qb3 Be7 13.Bd3 f5 14.0–0 Ng5 15.Nfd2 (15.Ng5 Bg5 16.Nc3 f4 17.cd5 cd5+/–) 15...Ne4 16.f3 Nd2 17.Nd2 Bf6 18.cd5 cd5 19.e4 fe4 (19...de4!? 20.fe4 Nc5 21.dc5 Bb2 22.Qb2 Qd3+=) 20.fe4+/– Kh8 (20...Nb8 21.e5 Bg5 22.Rf8 Qf8 23.Nf3 Be3 24.Kh1+–) 21.ed5+– e5 (21...Bg5 22.Nf3 ed5 23.Qd5+–) 22.Ne4 ed4 23.Nf6 Rf6 24.Bd4 Rf1 25.Rf1 Nf6 26.Qc3 Bd7 (26...Kg8+–) 27.Rf6 Rc8 28.Qd2 Qe7 (28...Kg8 29.Qg5 Rc1 30.Kf2 Bb5+–) 29.Qh6! Rc1 (29...gh6 30.Rf8 Mate attack) 30.Rf1 (30.Qc1 gf6 31.Qg5 Bb5 32.Bf6 Qf6 33.Qf6 Kg8 34.d6 Be8 35.Bc4 Bf7 36.Qf7 Kh8 37.Qf6) 30...Rf1 31.Kf1 Qf7 32.Kg1 Kg8 (32...Qg8+–) 33.Qh7 (33.Bh7 Kf8 34.Qd6 Qe7 35.Bg7 Ke8 36.Qb8 Bc8 37.Qc8 Qd8 38.Bg6 Ke7 39.Qe6) 33...Kf8+– 34.Bc5 (34.Bg6 Be6 35.Bf7 Bf7 36.Bc5 Ke8 37.Qe4 Be6 38.de6 g5 39.Qh7 g4 40.Qe7) 34...Ke8 35.Bg6 (35.Bg6 Kd8 36.Bf7 Bc6 37.Qh8 Kc7 38.d6 Kd7 39.Qe8; 35.Qh8 Qf8 36.Qf8) 1–0. Lunin,Mikhail (2230) – Makushkin,Aleksandr (1740), Kolomna, 2009.

5.d4 Bb4 6.c3 Ba5 7.Nf3 Ne4 8.Nfd2 Qh4?? 9.g3+– Qh6? 10.Ne4 d5 11.Nd6 Kd7 12.Nf7 Qf6 13.Nh8 Qf8 14.Qa4 Bb6 15.Bg2 Qh8 16.c4 dc4 17.Nd2 g6 18.Nc4 Bc7 19.b6! Bd6 20.Qa7! Ra7 21.ba7 Bb4 22.Kf1 Na6 23.a8Q Nc7 24.Nb6 Kd6 25.Nc8 (25…Kd7 26.Nb6 Ke7 27.Qh8+–) 1–0. Woschkat,Karl_Heinz – Krahl,Wolfgang, CiF FT–96–0142A, 1996.

5.d4 Be7 6.Nf3 =.

5.Nf3 d5 =.

4.e3 d6

5.c4 e5=+ 6.h3 Be6 7.Nf3 Nbd7 8.Ng5 h6 9.Ne6= Qc8?? 10.Ng7+– Kf8 11.Nf5 Ne4 12.Qh5 Ndf6 13.Nd6! Bd6 14.Qf3 Qe6 15.d4 Ng5?? 16.Qb7 Kg7 17.Bd3 Nge4 18.d5 Qc8 19.Qc8 Rhc8 20.0–0 Nc5 21.Bc2 Nfe4 22.f4 Ng3 23.Rf3 Nce4 24.fe5 Ne2 25.Kh2 Bc5 26.Be4 Bf8 27.e6 f6 28.Rf6 Kg8 29.Rg6 Kh7 30.Rg5# 1–0. johorean (2100) – punchmonkey, net–chess.com, 2008.

5.d4 Bb6 6.Nd2+= e5 7.de5 de5 8.Ngf3 e4 9.Ng5 Qd5 10.Bf6 gf6 11.Nge4 Ba5?? 12.Nf6 Kf8 13.Nd5 b6 14.Qh5 a6 15.Qh6 (15.Qh6 Ke8 16.Qh4 Nc6 17.bc6 Kf8 18.Qh6 Ke8 19.Qf6 Bb4 20.Qh8 Bf8 21.Ne4 Bd7 22.Nef6 Kd8 23.cd7 b5 24.Qf8#) 1–0. wiking – jpfaro, internet, 2009.

4.Nf3 0–0

5.d4 Be7 6.Nbd2 a6 7.e4 ab5 8.Bb5 c6 9.Bd3 d5 10.e5 Nfd7 11.0–0 c5 12.c3 cd4 13.cd4+= Nc6 14.Qc2 g6 15.a3 Qb6 16.h4 h5 17.Bg6 fg6= 18.Qg6 Kh8 19.Qh6 Kg8 20.Qe6 Rf7 21.Qg6 Rg7=+ 22.Qe8?? Nf8–+ 23.Rab1 Qd8 24.Qh5?? Bg4 25.Qh6=+ Ng6 26.h5= Nf8 27.Bc1 Bg5 28.Ng5+/– Qg5? 29.Qg5+– Rg5 30.Rb7?? Bh3? 31.Kh2 Bc8= 32.Rb6 Rh5 33.Kg1 Nd4–/+ 34.Re1 Nfe6 35.Nb3 Kf7 36.Nd4 Nd4 37.Bb2 Ne6 38.Rd1 Ba6 39.Rd5+/– Bc4 40.Rd7 Kg6? 41.Re7 Rd8 42.Ree6 Be6 43.Re6 Kg7 44.g3 Rd2 45.Bc3 Rc2 46.Bd4 Ra2 47.Ra6 Rd2 48.Be3 Rd1 49.Kg2 Re5 50.Kf3 Kf7 51.g4 Re6 52.Re6 Ke6 53.Kf4 Kd5 54.Kf5 Ra1 55.g5 Ra3 56.g6 Ra8 57.g7 Kd6 58.Kf6 1–0. elmoe (2000) – hotchess (1885), net–chess.com, 2004.

5.e3 (--> 4.e3 0–0 5.Nf3).

4.Nf3 c6

5.c4 d5 6.e3 Qe7 (6...0–0 7.Nc3=) 7.Be2 Bd7 (7...dc4 8.Bc4 a6 9.a4+=) 8.Nc3+= a6 9.a4 ab5 10.ab5 Ra1 11.Qa1 0–0 12.0–0 e5 (12...Rc8 13.Na4 Bb4 14.Nb6+/–) 13.d4 (13.bc6!? bc6 14.Ne5 Qe5 15.d4+/–) 13...ed4+= 14.ed4 Bb4 15.Qd1 (15.Re1 Be6+=) 15...Re8 (15...dc4 16.Bc4 Bc3 17.Bc3 cb5 18.Bb3=) 16.Ne5+= c5 (16...cb5 17.Nb5 Bb5 18.cb5 Ba3 19.Ba3 Qa3=) 17.Nd7 (17.Nd5 Nd5 18.cd5 Qd6+/–) 17...Bc3?? (better is 17...Nbd7 18.Bf3 dc4 19.Bb7 cd4 20.Qd4 Ne5+=) 18.Nf6+– (18.Bc3?! Ne4 19.Nf6 Qf6+/–) 18...gf6 19.Bc3 Qe2 20.Qe2 (better is 20.Re1!? Qd1 21.Rd1+–) 20...Re2+/– 21.dc5 (better is 21.Rc1 cd4 22.Kf1+/–) 21...dc4? (better is 21...Rc2 22.Bd4 Rc4+/–) 22.Bf6 (22.Rd1 Re8+–) 22...Nd7 23.Bd4 Re4 (better is 23...Nf8 24.Ra1 Re8+–) 24.Be3?? (better is 24.Rd1 c3 25.Bc3+–) 24...Kf8?? (better is 24...c3+=) 25.c6+– bc6 26.bc6 Nf6 (26...Nb8 27.Bc5 Kg7+–) 27.c7 Re8 28.Rd1 Ke7 (28...Rc8 29.Rd8 Ke7 30.Rc8 Kd7+–) 29.Bc5 Ke6 30.Rd8 (30.Rd8 Rd8 31.cd8Q+–) 1–0. Gibson,E Diarmid – Saraf,Snehit, Glasgow SCO, Commonwealth Ch, 2014.

5.e3 cb5 6.Bb5 0–0 7.0–0 d5 8.Be2 Nc6 9.c4 Ne4 (9...d4!? 10.ed4 Nd4+=) 10.d3= Nf6 11.Qc2 (11.Nbd2 dc4 12.Nc4 b6=) 11...Nb4 12.Qb3 Bd7 13.Nbd2 b5? (13...Bc6!?=) 14.a3 (14.cb5!? Rb8 15.Be5 Bb5 16.Bb8 Qb8 17.Rab1+–) 14...bc4 15.dc4 Nc6 16.Qc2 (16.Bf6 Qf6 17.cd5 Na5+/–) 16...Bb6 17.Ng5 e5 (17...g6!?+/–) 18.cd5+– Ne7 19.Be5 Ng6 20.Bf6 Qf6 21.Nge4 Qe5 22.Nf3 (better is 22.Nc3+–) 22...Rac8?? (better is 22...Qd5 23.Rfd1 Qf5+/–) 23.Ne5 Rc2 24.Nd7 Re2 25.Nf8 Kf8 26.Rfd1 f6 27.Nd2 Ne5 28.Kf1 Rd2 29.Rd2 Nc4 30.Re2 Na5 31.Rb1 Nb7 32.Rb6! ab6 33.Rb2 Ke7 34.Rb6 Nc5 35.Ke2 g5 36.Kf3 h5 37.e4 Nd3 38.Re6 Kf7 39.Ke3 Ne5 40.Re5! 1–0. Nemeth,Laszlo1 (1985) – Csatlos,Roland, Fuzesabony op, 2004.

5.e3 cb5 6.Bb5 0–0 7.c4 a6+= 8.Ba4 d5 9.cd5 Nd5 (worse is 9...Qd5 10.Bf6 gf6 11.Nc3+=) 10.0–0 b5 11.Bc2 Bb7 (better is 11...Nd7!?+=) 12.Bh7+= Kh8 (12...Kh7 Decoy theme: h7 13.Qc2 Theme: Double Attack) 13.Bc2 Nb4 14.d4 Bd6 15.Nbd2 f5 (15...Nc2!? 16.Qc2 Nd7+=) 16.Bb3+/– Nd3? (better is 16...Bd5+/–) 17.Ne5+– Qg5 18.Ndf3 Bf3 19.Qf3 Be5 20.Qa8 Bd6 (20...Bh2 21.Kh2 Nb2 22.Rh1+–) 21.f4 Qh4 22.Rf3 (22.Rab1 Rf6+–) 22...Qe7 23.Rh3 Kg8 24.Rb1 Nd7 (24...Nb2 25.Rb2 Rc8 26.Rb1+–) 25.Qa6 Nf6 (25...Nb2 26.Rb2 b4 27.Qb5+–) 26.Ba3! Ne4 (26...Ba3 27.Be6) 27.Bd6 (27.Bd6 Nd6 28.Bc2 Nf4 29.ef4+–) 1–0. Harabor,Mihai – Rotter,Leo B, corr, 1990.

5.e3 d5 6.Be5 =.

3...d5

4.c4 Bd6 5.d4 dc4 6.e3 0–0 7.Bc4 Bb4 8.Bc3 Bc3 9.Nc3 Qd7 10.Nf3 c6 11.Ne5 Qe7 12.a4 cb5 13.ab5 Nbd7 14.0–0 Ne5 15.de5 Nd7 16.f4 Rd8 17.Qf3?? Qb4–/+ (18.Ne4 Qc4–/+) 0–1. chevin – puladecal3, Caissa.com, 2004.

4.d3 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.bc6 bc6 9.Nf3 Qa5 10.Nbd2 Nbd7 11.c3 Be7 12.e3 Ba6 13.Be2 0–0 14.0–0 Rb8 15.Nd4 Qc7 16.c4 h6 17.Qa4 Bb7 18.Rb1 Ra8 19.Qb3 Rb8 20.Qc2 Bd6 21.h3 Ba8 22.cd5 cd5 23.Qc7 Rb1 24.Nb1 Bc7 25.Bf3 Ne5 ½–½. croach (2355) – rhand (2500), net–chess.com, 2015.

4.d3 c5 5.c4 Be7 6.Nf3 0–0 7.g3 dc4 8.dc4 Qd1 9.Kd1 Ne4 10.Kc2? Nf2–+ 11.Rg1 Ng4 12.Nbd2 Ne3 13.Kb3 a6–+ 14.Bg2 Nd7 15.Ne5 Ne5 16.Be5 Ng2 17.Rg2 Rd8 18.Nf3 Rd7 19.Rgg1 f6 20.Bc3 ab5 21.cb5 b6 22.Rgd1 e5 23.Rd2 Rda7 24.a4 1–0. Jokmin,Alex – De Leon,Fabiana, SN–2010–0–00236, 2010.

4.d4 Bb4 5.c3 Bd6 6.e3 0–0 7.Nf3 c5 8.dc5 Bc5 9.c4 Nbd7 10.cd5 Nd5 11.Be2 Qa5 (11...Bb4 12.Nbd2=) 12.Nbd2= N7b6 13.a4 Rd8 (13...Bb4 14.Bd3 Bc3 15.Qc2 Bb2 16.Qb2=) 14.0–0+= Ne3 15.fe3 Be3 16.Kh1 Bd2 17.Qc2 Bb4? (17...e5 18.Be5 g6+/–) 18.Ng5+– f5 19.Rf5 ef5 20.Qb3 Nd5 21.Bf3 Kf8 22.Bd5 Rd7 23.Bf7 Rd6 (23...Bc5 24.Bc3 Qc3 25.Nh7 Ke7 26.Qc3 Kf7 27.Qc5+–) 24.Bh5 Be6 (24...Ke7 25.Qf7 Kd8 26.Qe8 Kc7 27.Rc1 Bc5 28.Rc5 Kb6 29.Qe3 Rd1 30.Bd1 Qe1 31.Qe1 Bd7 32.Ne6 a6 33.a5 Ka7 34.b6 Kb8 35.Be5) 25.Ne6 Ke7 26.Ng5 Rf8 (26...Qb6 27.Be5 Rf8 28.Qb4+–) 27.Bg7 Rff6 28.Bf6 Kf6 29.Qf7 Kg5 30.Rf1 Qd8 (30...Qc7 31.Rf5 Kh6 32.Qc7 Rg6 33.Qf4 Kg7 34.Qb4 Kh6 35.Qf8 Rg7 36.Bf7 a6 37.Rh5) 31.Qg7 Kh5 (31...Rg6 32.Bg6 Qf8 33.Rf5 Qf5 34.Bh7 Kf4 35.Qd4 Kg5 36.h4 Kh5 37.Bf5 Bf8 38.Qf6 Bd6 39.g4) 32.Rf5 Kh4 1–0. chuckhar (2290) – olsime (1955), gameknot.com, 2014.

4.d4 b6 5.c4 Bb7 6.Nc3 c5 7.cd5 ed5 8.Nf3 c4 9.e3 Bd6 10.a4 Qe7 11.h3 0–0 12.Be2 Nbd7 13.0–0 Ne4 14.Ne4 Qe4 15.Qb1 Qe7 16.Bc3 h6 17.Ne5 Be5 18.de5 Ne5 19.Be5 Qe5–/+ 20.Bf3 Rfd8 21.Rd1 Rd6 0–1. iczker – cibis, kurnik, 2011.

4.d4 Qd6 5.Nf3 Bd7 6.a4 c6 7.c4 dc4–/+ 8.Nc3 cb5 9.ab5 Qb4 10.Qc2 Bb5 11.Ba3+/– Qa5 12.Qb2 Ne4 13.Bf8?? Qc3–/+ 14.Qc3 Nc3 15.Bg7 Rg8 16.Be5 Nc6 17.e3 Ne4 18.g3 a5 19.Nd2 Nd2 20.Kd2 Rd8 21.f4 Ke7 22.Kc3? f6 23.Bc7=+ Rc8 24.Ba5? Ra8–+ 25.Bb4 Nb4 26.Ra8?? Nd5 27.Kb2 Ra8 28.Bg2 c3 29.Kb3 Ne3 30.Bb7 Rb8 31.Be4 Bc6 32.Kc3 Be4 33.Re1 Nd5 34.Kc4 f5 35.Kc5 Rc8 36.Kb5–+ Rb8 37.Kc6?? Rb4 38.Kc5 Ra4 39.Kb5 Ra2 40.Rc1 Rc2 41.Rc2–+ Bc2 42.Ka6 Bb3 43.Kb7 Ne3 44.Kc6 Bd5 45.Kc5 Nc2 46.Kb6 Nd4 47.Kc7 Kf6 48.Kb8 Kg6 49.Kc7 Kh5 50.Kb8 Kg4 51.Kc7 Kh3 52.Kc8 Kh2 53.Kc7 Kg3 54.Kc8 Kf4 55.Kc7 Ke4 56.Kc8 f4 57.Kc7 Ke3 58.Kc8 Ke4 59.Kc7 Kd3 (59...Kd3 60.Kd7 f3 61.Ke7 f2 62.Kf7 f1Q 63.Ke7 Nc6 64.Kd7 Qf8 65.Kc7 Qb8 66.Kd7 Qd8) 0–1. iczker – joromaximus, kurnik, 2011.

4.f3 Bc5 5.e3 0–0 6.Nh3 a6 7.Nf2 ab5 8.Bb5 c6 9.Be2 Nbd7 10.f4 Bd6 11.0–0 e5 12.fe5 Ne5 13.a4 Qc7 14.Ba3 Be6 15.Bd6 Qd6 16.d4 Ng6 17.a5 b5 18.Bd3 Ra6 19.Nd2 Rfa8 20.Nb3 Nd7 21.e4 de4 22.Ne4 Qe7 23.Qd2 Bd5 24.Nec5 Nc5 25.Nc5 R6a7 26.Bg6 hg6 27.a6 Qh4 28.Rae1 f5 29.c3 Qf6 30.Qf4 Bc4 31.Rf3+– Rd8 32.Rfe3 g5 33.Qf3 Bd5 34.Re8 Kf7?? 35.Qh5 g6 36.Qh7 Qg7 37.R1e7!! Re7 38.Re7 Ke7 39.Qg7 Bf7 40.a7 g4 41.Qe5 Kf8 42.Qh8 Ke7 43.Qh4 (43.Qh4 Ke8 44.Nb7 Ra8 45.Qh8 Bg8 46.Qg8 Ke7 47.Qa8 Kf7 48.Qh8 g3 49.a8Q gh2 50.Kh2 Ke6 51.Qae8 Kd5 52.Qhg8#) 1–0. marekt – rasamatic, Yahoo, 2005.

4.f3 Nbd7 5.Nc3 a6 6.ba6=+ Ra6 7.e4 Rb6 8.e5?? Rb2 9.ef6 Qf6 10.Qc1 Rb6 11.Nb5 Bd6 12.a4 0–0 13.a5 Rc6 14.Na7? Rc5 15.Nc8 Rc8 16.a6 ba6 17.Ra6 Nb6 18.Bd3 Nc4 19.Ne2 Bf4 20.0–0 Nd2 21.Qa3?? Qe5 22.g3?? Nf1 23.gf4–/+ Qh5?? 24.Kf1 Qh3?? 25.Ke1 Rb5? 26.Bb5+– Rf8 27.Ra8 (27.Ra8 Qh4 28.Kd2+–) 1–0. MasterofDisaster – GreyGoose, Live Game Caissa's Web, 2005.

4.f4 Bd6 (4...Be7 5.e3 0–0 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.f4 0–0 6.Nf3)) 5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.f4).

4.f4 Bd7 5.e3 Bc5 6.Be5 0–0 7.Nc3 c6 8.Nf3 a6 9.a4 ab5 10.ab5 Ra1 11.Qa1 Ne4? 12.Bg7!+– Kg7?? 13.Ne4 Kg8 14.Nf6 Kh8 15.Nd7 Kg8 16.Nc5 1–0. jjj – kkk, internet, 2009.

4.f4 Be7 5.e3 0–0 6.Nf3 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Be7 6.Nf3 0–0).

4.Bf6 Qf6 5.d4 Bb4 6.c3 Ba5 7.e3 c5 8.Nf3 0–0 9.Be2 cd4 10.ed4 Nd7 11.0–0 b6 12.Bd3 Bb7 13.Qc2 h6 14.a3 Rad8 15.Re1 Qf4 16.Ra2 Nf6 17.Rb2 Rc8 18.Nfd2 Ng4 19.Nf3 Rc7 20.Rb3 Nf6 21.a4 Rfc8 22.Re2 Ne4 23.Be4 de4 24.Qd2 Qd2 25.Nfd2 Bc3 26.Nc3 Rc3 27.Rc3 Rc3 28.Kf1 Rd3 29.Nc4 Rd1 30.Re1 Rd4 31.Rc1 f5 32.a5 Bd5 33.Nb6? ab6 34.ab6 Rb4 35.Rc5 f4 36.Ke1 Rb1 37.Ke2 Rb2 38.Ke1 e3 39.fe3 fe3 40.h3 Bg2 41.Re5 Bd5 42.Re3 Rb5 43.Kd2 Rb6 44.Rd3 g5 45.Re3 Rb3 46.Rb3 Bb3 47.Ke2 e5 48.Ke3 Be6 49.Ke4 Bh3 50.Ke5 h5 51.Ke4 h4 52.Ke3 Bc8 53.Kf2 g4 54.Kf1 g3 55.Ke2 Bb7 (56.Ke3 h3–+) 0–1. Bestia02c – GLChess211, computer chess game, 2000.

4.g3 c6 5.Bg2 Be7 6.Nf3 0–0 7.0–0 c5 8.Nc3 b6 9.Ne5 Bb7 10.e4 d4–/+ 11.Ne2 Be4 12.d3 Bg2–+ 13.Kg2 Qd5 14.Nf3 Nbd7 15.c4 Qh5 16.Nf4 Qf5 17.Nh4 Qe5 18.Re1 Qb8 19.Bc1 g5 20.Ne6 fe6 21.Nf3? g4 22.Ng5 Qb7 23.Kg1 e5 24.Ne4 h5 25.Bh6 Rf7 26.f3? gf3 27.Qf3 Ng4 28.Nf6+= Kh8?? 29.Qb7+– Rf6 30.Qa8 Kh7 31.Bf4 ef4 32.Re7 Kg6 33.Qg8 Kf5 34.Rd7 Ne3 35.Qh7 Kg5 36.Rg7 (36.Rg7 Rg6 37.Qg6) 1–0. Salvatore – marnzell, ChessWorld.net, 2006.

4.c4 dc4

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

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

4.a4 a6 5.e3 ab5 6.ab5 Ra1 7.Ba1 Bd6 8.Nf3 0–0 9.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1).

4.a4 c5 5.e3 a6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 c5).

4.a4 Be7 5.e3 0–0 6.Nf3 a6 7.c4 c6 8.Nc3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6 8.Nc3 Nbd7).

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

4.c4 dc4

5.e3 Bb4 6.Bc4 0–0 7.Nf3 a5 8.a3 Be7 9.0–0 Nbd7 10.a4 Nb6 11.Be2 Nbd5 12.Nc3 Nb4 13.Na2 b6 14.Nb4+= Bb4 15.Nd4 Bb7 16.Nc2 Be7 17.d4 Qd5 18.Bf3 Ne4 19.Ne1 f5 20.Nd3 Bf6 21.Nf4 Qd7 22.Nh5 Be7 23.Nf4 g5 24.Nh5 Qe8 25.Be4 Be4+= 26.Ng3 Bb7 27.Qh5 Qh5 28.Nh5 Rad8 29.Ba3 Kf7 30.Be7 Ke7 31.f3 Kf7 32.Rfd1 Kg6 33.Ng3 Bd5 34.e4 Bb3 35.ef5 ef5 36.Rd2 Rd7 37.Kf2 Rfd8 38.Ra3 Be6 39.Rad3 Bc4 40.Rc3 Be6 41.Ne2 h6 42.f4 g4 43.g3 h5 44.Rcd3 Bd5 45.Nc3 Bf3 46.d5 Rd6 47.Rf3 gf3=+ 48.Kf3 Kf6 49.Rd4 Kg6 50.h4 R6d7 51.Ke3 Rd6 52.Kd3 Re8 53.Nd1 Re1 54.Ne3=+ Rg1 55.Rc4 Rg3 56.Rc7 Rg1?? 57.Rc6 Rc6? 58.dc6 Rc1 59.Kd4 Rc5 60.Nd5 Kf7 61.c7 Rc7?? 62.Nc7+– Ke7 63.Nd5 Kd6 64.Nb6 Ke6 65.Nc4 Kf6 66.b6 (66…Kg6 67.Ne5 Kf6 68.b7 Kg7 69.b8Q Kh7 70.Qb7 Kh8 71.Nf7 Kg7 72.Ng5 Kg6 73.Qf7 Kh6 74.Qf6#) 1–0. Scirocco – fischerDNA, Caissa.com, 2004.

5.e3 Be7 6.Bc4 Bd7 7.Nf3 c6 8.a4 0–0 9.0–0 cb5 10.ab5 Qc7 11.Qb3 a6 12.Be5 Qb6 13.Bd4 Qc7 14.Rc1 Bb5=+ 15.Rc2 Bc4 16.Rc4 Nc6 17.Bb6 Qd7 18.d4 Rfc8 19.Nbd2 h6 20.Qa4 Nd5–+ 21.Qb3 Nb6 22.Qb6–/+ Qc7 23.Rb1 Qb6 24.Rb6 Nd8 25.Ne5 Bf6 26.Nd7–/+ Be7 27.Nc5 Bc5–/+ 28.dc5 Rc6 29.Ne4 Rac8 30.Rcb4? Rb6 31.Rb6 f5 32.Nd6 Rc5 33.g3 Rc6 34.Rc6 bc6 35.Kf1 Kf8 36.Ke2 Ke7 37.Nc4 Kd7 38.Kd3 Nf7 39.Kd4 Nd6 40.Ne5 Kc7 41.Nd3 Nf7 42.f4 Kd6 43.Nc5 Nd8 44.Na6 Nb7 45.Kc4 h5 46.h3 g6 47.h4 Na5?? 48.Kb4= Nb7 49.Kc4 e5 50.Nb8 ef4 51.ef4 Kc7 52.Na6–/+ Kb6 53.Nb4 Nd6 54.Kd3 Ne4 55.Nc2 c5 56.Ne3 Kb5 57.Nc4 Kb4 58.Ne5 Kb3 59.Nc4 Nf2 60.Ke2 Kc4 61.Kf2 Kc3 62.Ke2 Kc2 0–1. Pruvost,A – Obert,Julien, 8th Open, La Fere FRA, 2009.

4.d3 c6

5.a4 Bd7 6.bc6 Nc6 7.Nd2 a5 8.Ngf3 Bd6 9.g3 0–0 10.Bg2 Re8 11.0–0 Rc8 12.c4 Be7 13.Qb3 Qc7 14.Rfc1 Qb8 15.e3 Nb4 16.Be5 Bd6 17.Bf6 gf6 18.h3 Kh8 19.Nh2 e5 20.cd5 Rc1 21.Rc1 Rg8 22.e4 h5 (22...Qe8 23.Ra1+=) 23.Ndf3 Qa7 24.Qd1 (better is 24.Nf1+/–) 24...Ba4?? (better is 24...Rg3! 25.d4 Rg7=) 25.Qa4+– Nd3 26.Rf1 Bc5 27.Qc2 Nf2 28.Rf2 Rg3 29.Qd2 Bf2 30.Qf2 Qf2 31.Kf2 Rg8 32.Bf1 a4 33.Nd2 a3 34.Nhf3 Rc8 35.Bc4?? Rc4!–+ 36.Nb3 Rc2 37.Nfd2 a2 38.Ke1 Rc1! 39.Ke2 a1Q 40.Na1 Ra1 41.d6 Ra8 0–1. Martinez Pastor,Francisco – Zamora Pastora,Roger, Madrid–ch Veterans, 2009.

5.a4 Bd7 6.Nf3 Qc7 7.c4= dc4 8.dc4 cb5 9.cb5 Bb4 10.Nbd2 0–0 11.e3 Re8 12.Bd3 e5 13.0–0 e4 14.Ne4 Ne4–/+ 15.Be4 Re4 16.Qd5 Rc4 17.Rac1 Be6=+ 18.Rc4 Qc4 19.Qd8 Bf8 20.Ba3? Qc8–+ (20...Qc8 21.Qc8 Bc8 22.Bf8 Kf8–+) 0–1. Stoklas,V – Sinkko,T, corr ICCF EU/M/Gr/338 (year?).

4.d4 a6

5.a4 ab5 6.ab5 Ra1 7.Ba1 Bd6 8.Nf3 0–0 9.c4 dc4 10.Nc3 Bb4 11.e4? Ne4 12.Bc4? Nc3 13.Bc3 Bc3 14.Ke2 c6 15.Qd3 cb5 16.Qc3 bc4 17.Qc4 Nc6 0–1. iczker – 007pacino, kurnik, 2011.

5.a4 c5 6.c4 dc4 7.Nf3 ab5 8.ab5 Ra1 9.Ba1 Qa5 10.Bc3 Qb5 11.dc5 Qc5 12.Bf6 gf6 13.Qa4 b5 14.Qa8? c3 15.Qb8 c2 16.Nc3 Qc3 17.Nd2 c1Q 0–1. iczker – mowiszwygrale, kurnik, 2011.

4.d4 c5

5.c4 b6 6.Nc3 Nbd7 7.Nf3 Bb7 8.e3 Bd6 9.dc5 bc5 10.cd5 ed5 11.a4 0–0 12.Bd3 d4 13.ed4 cd4 14.Ne2 Bb4 15.Kf1 Bf3 16.gf3 Nh5 17.Ng3 Qh4 18.Nh5 Qh5 19.f4 Qh3–/+ 20.Kg1 Nc5 21.Bf1= Qh4 22.Bd4?? Qf4?? 23.Bc5 Bc5–/+ 24.Qc2 Rac8 25.Qe2?? Rfe8–+ 26.Qb2 Re6 27.Bg2 Rg6 28.Rc1?? Qf3 29.Kf1 Qg2 30.Ke1 Qh1 31.Ke2 Qe4 32.Kf1 Qd3 33.Ke1 Re8 34.Qe2 Qe2 0–1. iczker – lenja, kurnik, 2011.

5.c4 b6 6.Nf3 Bd6 7.e3 Nbd7 8.Nc3 Bb7 9.Be2 a6 10.a4 ab5 11.ab5 Ra1 12.Qa1 0–0 13.0–0 Qc7 14.cd5 ed5 15.Rc1 Ng4 16.h3 Nh2 17.Nh2 Bh2 18.Kf1 Ra8 19.Qb1 Bd6 20.dc5 Nc5 21.Rd1 Be7 22.Nd5 Bd5 23.Rd5 Qh2 24.Ke1 Nb3 25.Qe4 Bb4?? 26.Kd1 Qg1–+ 27.Kc2 Na1 28.Ba1 Rc8?? 29.Bc4?? Qf2?? 30.Kb3+– Bf8 31.Bd3 Qd2 32.Qh7 1–0. iczker – lenja, kurnik, 2011.

5.c4 dc4 6.Nc3?? cd4–+ 7.Qa4 dc3 8.b6 Bd7 9.Qa7 Ra7 10.ba7 Na6 11.Bc3 Bc5 (11...Bc5 12.e3 Nb4–+) 0–1. iczker – niekka, kurnik, 2011.

5.c4 dc4 6.e3 Qa5 7.Bc3 Qb5 8.Na3 Qd7 9.Bc4? cd4–+ 10.Bd4? Be7 11.Bb5 Nc6 12.Qa4 0–0 13.Rc1 a6 14.Bc6 bc6 15.Qc6?? Qc6 16.Rc6 Ba3 17.Nf3 Bb4 18.Ke2 Bd7 19.Rc7 Bb5 20.Kd1 Rac8 21.Bb6 Rfd8 22.Nd4 e5 23.Rc8 Rc8 24.Nb5 ab5 25.Ke2 Nd5 26.Ba7 e4 27.Rd1 Nc3 (27...Nc3 28.Ke1 Nd1 29.Kd1 Bd6–+) 0–1. iczker – robitat (1785), kurnik, 2011.

5.c4 dc4 6.Nf3 b6 7.Nc3 Bb7 8.e3 Nbd7 9.Bc4 Bd6 10.0–0 Qc7 11.Qb3?? Bf3–+ 12.gf3 Bh2 13.Kg2 Bd6 14.Be6? fe6–+ 15.Qe6 Be7 16.d5 Qd6 17.Qf5 0–0 18.Qe6 Qe6 19.de6 Ne5 20.f4 Nd3 21.Ba3 Ne8 22.Rad1 Rd8 23.e4 Nf4 24.Kh2 Nd6 25.e5 Nf5 26.Ne4 Rd1 27.Rd1 Rd8 28.Rd8 Bd8 29.Bc1 Nd3 30.Bg5 Bg5 31.Ng5 Ne5 32.f4 Ng6 33.Nh3 Kf8 34.Kg2 Ke7 35.Kf3 Ke6 36.Ke4 Nd4 37.Ng5 Kf6 38.Nh7 Ke7 39.f5 Nf8 40.Ng5 Kf6 41.Nh3 Nf5 42.Nf4 g5 43.Nd5 Ke6 44.Nc7 Kd6 45.Ne8 Ke7 46.Nc7 Kf6 47.Nd5 Kg6 48.Ne7 Ne7 49.Ke5 g4 50.Kd6 g3 51.Ke7 g2 52.Kf8 g1Q 53.Ke7 Qd4 54.Ke6 Qb4 0–1. iczker – kszz, kurnik, 2011.

5.c4 cd4 6.Bd4 a6 7.a4? ab5 8.ab5 Ra1 9.Ba1 Bb4 10.Bc3 Bc3 11.Nc3 Qa5 12.Qd4?? Ne4–+ 13.f3 Qc3 14.Qc3 Nc3 15.Kd2 Na4 16.cd5 ed5 17.e4 Be6 18.Ne2 b6 19.Nf4 de4 20.fe4 Ke7 21.Bd3 Nc5 22.Bc2 Rd8 23.Kc3 Nbd7 24.Ra1 Nf6 25.Ra7 Rd7 26.e5 Nfe4 27.Kb2 Ra7 28.Nh5 Ra2 29.Kc1 Nb3 30.Kd1 Nc3 31.Ke1–+ Rc2 32.Ng7 Rg2 33.Nh5 Rh2 34.Nf6 Nd4 35.Ng8 Kf8 36.Nf6 Ncb5 37.Kd1 Nc6 38.Ne4 Ne5 39.Ng5 Nd3 40.Nf7 Nc3 (40...Bf7?!; 40...Kf7?!) 0–1. iczker – ludovrac, kurnik, 2011.

5.c4 cd4 6.Bd4 Bb4 7.Bc3 Qa5 8.Qb3 Bc3 9.Qc3 Qc3 10.Nc3 dc4 11.e4 0–0 12.Bc4 Bd7 13.e5 Ng4 14.Nf3? Rc8–+ 15.Nd2? Ne5 16.0–0 Nc4 17.Nc4 Rc4 18.Rac1 h6 19.Ne2 Rc1 20.Rc1 Bb5 21.Nd4 Ba6 22.Rc8 Kh7 23.Nf3 Be2 24.Ne5 f6 25.Nd7 e5 26.Rb8? Rb8–+ 27.Nb8 b5 28.Nc6 Bc4 29.a3 a6 30.Nb4 a5 31.Nc6 a4 32.f3 Kg6 33.Kf2 Kf5 34.Ke3 Ke6 35.Nb4 g6 36.g3 h5 37.h3 Bf1 38.Nc6? Bh3 39.Nd8 Kd5 40.Nf7 Be6 41.Nh8 g5 42.Ng6 Bf7 43.Ne7 Ke6 44.Nc6 Kd5 45.Ne7 Kc5 46.Kd3 Be6 47.Kc3 Kd6 48.Ng6 Bf5 49.Nf8 h4 50.gh4 gh4 51.Kb4 h3 52.Kb5 Bc2 53.Kb4 h2 54.Ng6 h1Q 55.Nh4 Qe1 56.Kb5 Qh4 57.Kb6 Qc4 58.f4 Qc5 59.Kb7 Kd7 60.Ka6 Bd3 61.Kb7 Qc6 62.Ka7 (62.Ka7 Qc7 63.Ka8 Be4). iczker – zeneknb55, kurnik, 2011.

5.c4 cd4 6.Bd4 Be7 7.Nf3 0–0 8.e3 Nbd7 9.Nbd2 b6 10.Bd3 Bb7 11.0–0 g6 12.Ne5 Ne5 13.Be5 dc4 14.Nc4 Rc8 15.Rc1 Nd5 16.e4 Nb4 17.Bb1 Bc5? 18.Bd6 Bd6 19.Qd6 Qd6 20.Nd6 Rc1 21.Rc1 Ba8 22.f3 Rd8 23.Nc8?? a5?? 24.ba6 Na6 25.Nb6 Bb7 26.e5 Kg7 27.Be4 Be4+= 28.fe4 Nb4 29.Ra1 Rd2 30.Nc4 Ra2= 31.Ra2 Na2 32.Kf2 Nc3 33.Ke3 Nb5 34.Nd6 Nc3 35.g4 Nd1 36.Kf4 Nf2 37.h4 h6 38.Ne8 Kf8 39.Nf6 Nd3 40.Ke3 Ne5 41.g5 hg5 42.hg5 Nc4 43.Kf4 Nd6 44.Nd7 Ke7 45.Ne5 Nc8 46.Nc6 Kd6 47.Nd4?? Ne7 48.Nb5=+ Kc5 49.Nc7 Kd6 50.Ne8 Kd7 51.Ng7?? Nc6–+ 52.e5 Nd4 53.Ke4 Ne2 54.Kf3 Ng3?? 55.Kf4?? Ke7 56.Kg3+= Kf8 57.Kf4 Kg7 58.Ke4 Kh7 59.Kf4 Kg7 60.Kg4 Kg8 61.Kf4 Kg7 ½–½. iczker – panczer, kurnik, 2011.

5.c4 Nbd7 6.Nc3 b6 7.Nf3 Be7 8.e3 Bb7 9.a4 0–0 10.dc5 bc5 11.Be2 Ng4 12.h3 Nge5 13.Ne5 Ne5 14.0–0 Nc4 15.Bc4 dc4 16.f3 Bf6 17.Qc2 Qc7 18.Ne4 Bb2 19.Qb2 Be4 20.fe4 Qg3 21.Qf2 Qg6 22.Qf4 Rad8 23.e5 Rd3 24.Qc4 Rd2 25.g4 Rfd8 26.Qc5 h6 27.Rf4 h5 28.Raf1 hg4 29.Rg4 Qh5 30.Rff4?? Qh3 31.Qe7 Rd1 32.Kf2 R8d2 0–1. iczker – lenja, kurnik, 2011.

5.dc5 Bc5 6.c4? 0–0 7.e3=+ b6 8.Nc3 Bb7 9.Nf3 Nbd7 10.Be2 Qc7 11.Rc1 dc4 12.Bc4 Rad8 13.Qb3 Ne4 14.Ne4 Be4 15.Be6 Bf3 16.Bd7 Bg2 17.Bc6? Bc6 18.bc6–/+ Qc6 19.0–0 Qg6 20.Kh1 Qe4 21.Kg1 Rd6 22.h3?? Rg6 23.Kh2 Bd6 24.Be5 Be5 25.f4 Bb8 26.Rg1 Rg1 27.Rg1 Qf3 28.Qb2 g6 29.Rg3 Qe4 30.h4 h5 31.Kh3 Bd6 32.Qf6 Be7 33.Qc3 Qf5 34.Kh2–+ Bh4 35.Rh3 Bf6 36.Qc4 Bg7 37.e4 Qf4 38.Kh1 Re8 39.Qf7 Qf7 40.Rh5 gh5 (40...gh5 41.Kg2 Qg6 42.Kf2 Rf8 43.Ke3 Qg3 44.Ke2 Rf2 45.Kd1 Qg1; 40...Qf1 41.Kh2 gh5 42.Kg3 Re4 43.a3 Be5) 0–1. iczker – oldmanfirst (1680), kurnik, 2011.

5.bc6 bc6 6.c4 Qb6 7.Qb3 c5 8.dc5 Bc5 9.e3 Nc6 10.Nc3 Nb4 11.Na4 Qa5 12.Bc3 Rb8 13.Nc5 Qc5 14.cd5?? Nd3!!–+ 15.Bd3 Rb3 16.ab3 Nd5 17.Bd4 Qb4–/+ 18.Ke2 Qb3 19.Nh3 0–0 20.Rhb1 Nc3 21.Bc3 Qc3 22.Ra7 Rd8 23.Rd1 Bd7 24.Rda1? Bc6–+ 25.Rc7?? Qa1 26.Rc6–+ Qb2 27.Bc2 g6 28.Kf3 Rd5 29.Nf4 Qf6 30.Rc8 Kg7 31.Kg3 Rd2 32.Be4 Qg5 33.Kf3 f5 34.Ne6+– Kf6 35.Ng5 fe4 36.Ne4 Ke5 37.Nd2 Kf6 38.Rh8 Kg7 39.Rh7! Kh7 40.Ne4 Kg7 41.Ng3 Kf6 42.Ne4 Kf5?? 43.Kg3 Ke5 44.Kg4 Ke6 0–1. iczker – atrodyta22, kurnik, 2011.

5.Nf3 cd4 6.Bd4 Be7 7.c4 dc4 8.Nc3 0–0 9.e3 b6 10.Bc4 Bb7 11.0–0 Nbd7 12.Bb3? Nc5 13.Bc5 Bc5 14.a4 Qd1 15.Rad1 Bf3 16.gf3 Rfd8 17.Ne4 Ne4 18.fe4 Kf8 19.Rd8 Rd8 20.Rd1 Rd1 21.Bd1 e5 22.Kg2 Ke7 23.Kf3 Kf6 24.Bb3 Kg6 25.Bd5 f6 26.Kg4 h5 27.Kg3 Kg5 28.h4 Kh6 29.Bf7 g6 30.Kf3 Kg7 31.Bd5 Bb4 32.Ke2 Be7 33.f4 ef4 34.ef4 f5 35.Kf3 Bh4 36.ef5 gf5 37.Be6 Kf6 38.Bd7 Be1 39.Be8 h4 40.Bh5 Ke6 41.Bg6? Kf6 42.Bh5–/+ Kg7 43.Ke3 h3 44.Bf3 h2 45.Bh1 Kf6 46.Kf3 Bd2 47.Kg2? Bf4–+ 48.Kf3 Ke5 49.Bg2–/+ Bd2 50.Bf1?? Bc3 51.Bg2? Bd4 52.Ke2 Kf4 53.Kd3 Bf2 54.Ke2 Kg3 55.Bc6 Bc5 56.Kd3 f4 57.Kc4 f3 58.Kd5 h1Q (58...h1Q 59.Ke6 Qh3 60.Ke5 f2 61.Bf3 f1Q 62.Bg4 Qf4 63.Kd5 Qfg4 64.a5 Qe6) 0–1. iczker – kkkris, kurnik, 2011.

4.d4 c6

5.a4 cb5 6.ab5 Bb4 7.c3 Bd6 8.c4 dc4 9.Nc3 Qb6 10.e4 Bb4 11.Bc4 Ne4 12.Qc2?? Qd4–+ 13.Qe4 Bc3 14.Bc3 Qc3 15.Ke2 Qa1 16.Nf3 Qh1 17.Ng5 Qh2 18.Ne6 fe6 19.Be6 Qh5 20.Bg4 Kf7 21.Bh5= g6 22.Qd5?? Be6–+ 23.Qb7 Nd7 24.Bf3 Rae8 25.Kf1? Bc4 26.Kg1 Re7 27.Qa6 Re1 28.Kh2 Rhe8 29.Qb7 Be6 0–1. iczker – zeneknb55, kurnik, 2011.

5.a4 Bd6 6.c4 dc4 7.Nc3 Bb4 8.e3 Qa5 9.Rc1 Nd5 10.Nge2 cb5 11.ab5 Qb5 12.e4 Nc3 13.Bc3 Bc3 14.Rc3? 0–0 15.Nf4 Nc6 16.Bc4 Qb4 17.Qb3 Qb3 18.Bb3 Nd4 19.0–0? e5 20.Nd5 Ne2 21.Kh1 Nc3 22.Nc3 Be6 23.Be6 fe6 24.Rb1 b6 25.f3 Rfd8 26.h4 Rab8 27.Nb5 a5 28.Nc7 Rd6 29.Na6 Rc8 30.Rb5 Kf7 31.Re5 b5! 32.Rb5 Ra6 33.Rb7 Kg8 34.g4 a4 35.Rb2 a3 36.Ra2 Rb8 37.Ra1 a2 38.Ra2 Ra2 (38...Ra2 39.f4 Rb1) 0–1. iczker – chlop97 (1690), kurnik, 2011.

4.d4 Bd6

5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.d4).

5.Nf3 b6 6.c4 dc4 7.Nc3 Bb7 8.e3 Nd5 9.Bc4 0–0 10.0–0 h6 11.Nd5 ed5 12.Bd3 c5 13.bc6 Nc6 14.Rc1 Qe7 15.a4 Rac8 16.Bb5 Nb4 17.Rc8 Rc8 18.Ba3 a6 19.Bb4 Bb4 20.Bd3 Qd7 21.Qb3 a5 22.Ne5 Qe6 23.Bb5 Rc3 24.Qd1 Rc7 25.Qb3 Rc3 26.Qd1 f6 27.Nf3 Qc8 28.Ne1 Rc1 29.Qe2 Qc3 30.Nd3 Rf1 31.Kf1 Qa1 (31...Qa1 32.Ne1 Bc8=+). iczker – cibis (1650), kurnik, 2011.

4.d4 Bd7

5.a4 a6 6.c4 ab5 7.ab5 Ra1 8.Ba1 dc4 9.Nc3 Bb4 10.e3 Bb5 11.Nf3 Ne4 12.Qc2 Nc3 13.Bc3 Bc3 14.Qc3 Qd7 15.Bc4 Bc4 16.Qc4 Nc6 17.0–0 0–0 18.Rb1 b6 19.Rc1= Na5 20.Qc7 Qb5 21.Qc3 h6 22.Ne5 Qe2 23.Nc6 Rc8?? 24.Ne7+– Kh7 25.Nc8 b5 26.Qc2 Qc2 27.Rc2 Nb3 28.Rb2 Na5 29.Rb5 Nc6 30.Nd6 Kg6 31.Rb7 f5 32.Ne8 e5 33.Rg7 Kh5 34.Nf6 Kh4 35.g3 Kh3 36.Rh7 ed4 37.Rh6 1–0. iczker – audalyochess, kurnik, 2011.

5.a4 c6 6.c4? cb5 7.ab5 dc4 8.Nc3 Qc7 9.e3 Bb4 10.Nf3 Nd5 11.Rc1 Bb5 12.Be2 0–0 13.0–0 Nc3 14.Bc3 Bc3 15.Rc3 Nd7 16.Qc1 Rfc8 17.Rd1 Ba6 18.Qa3 Qc6 19.Ne5 Ne5 20.de5 b5?? 21.Bf3 Qc7 22.Ba8 Ra8 23.Qd6?? Qd6–/+ 24.ed6 Kf8 25.e4 Ke8 26.e5 Kd7 27.Ra3?? Bb7–/+ 28.Rb1 Bc6?? 29.Ra5?? a6 30.Rba1 Bb7 31.f4 c3 32.Kf2 b4 33.Rc5 Rc8 34.Rc8 Kc8 35.g4? c2 36.Ke3 b3 37.Kd2 b2 38.Rc1 bc1Q 39.Kc1 Be4 40.Kb2 a5 41.h4 a4 42.g5 a3! 43.Kc1 a2 44.Kb2 a1Q! 45.Kb3 c1Q (45...c1Q 46.d7 Kd7 47.Kb4 Qcc3 48.Kb5 Qaa5; 45...Qb1 46.Ka3 c1Q 47.Ka4 Qc4 48.Ka5 Qbb4) 0–1. iczker – kesi1, kurnik, 2011.

4.d4 Be7

5.c4 dc4 6.Nc3 a6 7.a4 ab5 8.ab5 Ra1 9.Qa1 0–0 10.e4 Bb4–/+ 11.Bc4?? Ne4 12.Nge2 Qh4 13.0–0 Qg5?? 14.Ne4+– Qg6 15.f3 Nd7 16.Nf4 Qh6 17.Bc1 Qh4 18.g3 Qe7 19.d5 e5 20.Nd3 Bd6 21.Bb2 f6 22.Re1 Kh8 23.Nd6 cd6 24.f4 e4 25.Kf2 f5 26.Kg2 Qf7 27.Nf2 Nc5 28.Nh3 h6 29.Nf2 h5 30.Bd4 Qg6 31.Bc5 dc5 32.Qe5 Re8 33.Qc3 h4 34.Nh3 Qg4? 35.Be2 Qg6 36.Ng5 b6 37.Ne6! Be6 38.de6 Qe6 39.Qe5 Qe5= 40.fe5 Re5 41.gh4 f4? 42.h5?? f3–+ 43.Bf3 (43.Bf3 ef3 44.Kf3 Re1 45.Kf2–+). iczker – zeneknb55, kurnik, 2011.

5.c4 dc4 6.Nc3 Nd5 7.e4 Nc3 8.Bc3 a6 9.a4 ab5 10.ab5 Ra1 11.Qa1 Bd7 12.Bc4 0–0 13.d5 ed5 14.ed5 f6?? 15.d6+– Kh8 16.de7 Qe7 17.Ne2 Re8 18.0–0 c6 19.b6 Qc5 20.Bf6! Qc4 21.Bg7 Kg8 22.Bh8 Re7 23.Ng3 Na6 24.Bf6 Rf7 25.Bd4 c5 26.Bc3 Qb5 27.Ne4 Bc6? 28.Nf6 Kf8 29.Re1 Qb6?? 30.Re8 Be8–+ 31.Ne8 Ke8 32.Qe1 Re7 33.Qd2 Qd8 34.Qg5 Qd1 (34...Qd1 35.Be1 Re1) 0–1. iczker – bestegidio (1680), kurnik, 2011.

5.c4 dc4 6.e3 0–0 7.a4 Bb4 8.Bc3 Bc3 9.Nc3 Nbd7 10.Bc4 Nb6 11.Bd3 Nfd5 12.Nge2 Nc3 13.Nc3 Nd5 14.Nd5 Qd5 15.0–0 Rd8 16.Qc2 h6 17.Be4 Qd6 18.Rac1 Rd7 19.Rfd1 f5 20.Bf3 g5 21.d5 g4 22.de6 Qe6 23.Rd7 Bd7? 24.Bb7 Re8 25.Rd1 f4 26.Bd5 (26.Qc7?! fe3 27.Qc5 e2+–) 1–0. iczker – dawnysamotny, kurnik, 2011.

5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.d4).

4.e3

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

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

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

4.e3 a5 5.Nf3 Nbd7 (--> 1.b4 a5 2.b5 Nf6 3.Nf3 e6 4.Bb2 d5 5.e3 Nbd7).

4.e3 Bc5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bc5).

4.e3 a6

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

5.a4 c6 6.Nf3 ab5 7.ab5 Ra1 8.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.Nf3)

5.a4 Bd6 6.Nf3 ab5 7.ab5 Ra1 8.Ba1 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Nbd7 8.Nf3 Bd6).

5.a4 Nbd7 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 Nbd7 6.Nf3).

5.a4 Be7 6.Nf3 0–0 7.Be2 ab5 8.ab5 Ra1 9.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Be7 8.Nf3 0–0 9.Be2).

5.a4 Be7 6.Nf3 ab5 7.ab5 Ra1 8.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Be7 8.Nf3).

5.Nf3 ab5 6.Bb5 c6 7.Be2 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 a6 4.e3 ab5 5.Bb5 c6 6.Be2 d5 7.Nf3).

5.a4 ab5

6.ab5 Ra1

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

7.Ba1 c5 8.c4 Bd6 9.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4).

7.Ba1 c5 8.c4 Nbd7 9.Nf3 Bd6 10.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0–0 10.Be2 Nbd7).

7.Ba1 c6 8.bc6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.bc6).

7.Ba1 Bd6 8.c4 0–0 9.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Bd6 8.Nf3 0–0 9.c4).

7.Ba1 Bd6 8.Nf3 0–0 9.Be2 Nbd7 10.0–0 c5 11.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0–0 10.Be2 Nbd7 11.0–0).

7.Ba1 Bd6 8.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Nbd7 8.Nf3 Bd6).

7.Ba1 Nbd7 8.Nf3 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Be7 8.Nf3 Nbd7).

4.e3 b6

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6).

5.c4 Bb7 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bb7 6.c4).

5.c4 Bb7 6.Nf3 Be7 7.Be2 c5 8.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

5.Nf3 Bb7 6.c4 c5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

5.Nf3 Bb7 6.c4 c5 7.Be2 Be7 8.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

5.Nf3 Bb7 6.Be2 Be7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.Be2 d5).

5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 Bb7 9.d4 Nbd7 10.Nbd2 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4 Nbd7 10.Nbd2).

5.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Nbd7 5.Nf3 b6).

5.Nf3 Be7 6.c4 0–0 7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4 0–0 7.Be2 d5).

5.Nf3 Be7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 b6).

4.e3 c5

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5).

5.a4 b6 6.c4 Bb7 7.Nf3 Nbd7 8.Be2 Bd6 9.0–0 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

5.c4 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.c4)

5.c4 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 Bd6 9.Nf3 Nbd7 10.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0–0 10.Be2 Nbd7).

5.c4 a6 6.a4 Be7 7.Nf3 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 a6 8.a4).

5.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3).

5.Nf3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3).

5.c4 b6

6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 b6).

6.Nf3 Nbd7 7.Be2 Bb7 8.0–0 Be7 9.a4 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7).

6.Nf3 Nbd7 7.Be2 Bd6 8.0–0 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6).

6.Nf3 Bb7

(--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

7.d4 Nbd7 8.Be2 Be7 9.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4 Nbd7).

7.Be2 Bd6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Bd6).

7.Be2 Nbd7 8.0–0 Bd6 9.d4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7).

7.Be2 Be7 8.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

7.Be2 Be7 8.0–0 0–0 9.a4 Nbd7 10.Na3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.Na3).

5.c4 Bd6

6.cd5 ed5 7.Nf3 Nbd7 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.cd5 ed5).

6.Nf3 0–0 7.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

6.Nf3 Nbd7

(--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

7.Nc3 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.Nc3).

7.Nc3 0–0 8.Be2 b6 9.d4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.d4 b6 9.Nc3).

7.d3 0–0 8.Nbd2 b6 9.Be2 Bb7 10.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2).

7.d3 b6 8.Be2= Bb7 9.0–0 0–0 10.Nbd2 Qe7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2 Qe7).

7.d4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.d4).

7.Be2 0–0 8.0–0 b6 9.a4 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

7.Be2 0–0 8.d4 b6 9.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4).

5.c4 Nbd7

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7).

6.cd5 ed5 7.Nf3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.cd5 ed5).

6.Nf3 b6 7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Nbd7).

6.Nf3 b6 7.Be2 Bb7 8.0–0 Bd6 9.d4 Rc8 10.Nbd2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2 Rc8).

6.Nf3 Bd6 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

6.Nf3 Bd6 7.Nc3 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.Nc3).

6.Nf3 Bd6 7.d3 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.d3).

6.Nf3 Bd6 7.d3 b6 8.Nbd2 Bb7 9.Be2 0–0 10.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2).

6.Nf3 Be7 7.d3 0–0 8.Be2 b6 9.0–0 Bb7 10.Nbd2 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.Be2 0–0 7.0–0 d5 8.d3 c5 9.Nbd2 Nbd7 10.c4).

6.Nf3 Be7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7).

5.c4 Be7

6.Be2 0–0 7.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2).

6.Be2 0–0 7.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7 7.Be2 0–0).

6.Be2 Nbd7 7.Nf3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7).

6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4).

6.Nf3 0–0 7.Be2 b6 8.0–0 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

6.Nf3 0–0 7.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7 7.Be2 0–0).

6.Nf3 0–0 7.Be2 Nbd7 8.0–0 b6 9.a4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7).

6.Nf3 0–0 7.Be2 Nbd7 8.0–0 b6 9.d4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4 Nbd7).

6.Nf3 a6 7.a4 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 a6 8.a4).

6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7).

6.Nf3 Nbd7 7.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7).

5.Nf3 b6

6.c4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

6.c4 Bb7 7.a4 Bd6 8.Be2 Nbd7 9.0–0 0–0 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

6.c4 Bb7 7.Be2 Nbd7 8.0–0 Rc8 9.d3 Bd6 10.Nbd2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2 Rc8).

6.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 b6).

6.Be2 Bb7 7.a4 Bd6 8.0–0 Nbd7 9.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

6.Be2 Be7 7.0–0 0–0 8.c4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

5.Nf3 Bd6

6.c4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4).

6.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

6.c4 Nbd7 7.d3 0–0 8.Nbd2 b6 9.Be2 Bb7 10.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2).

6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6).

6.c4 Nbd7 7.Be2 0–0 8.0–0 Qe7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 Qe7).

6.c4 Nbd7 7.Be2 Qc7 8.0–0 b6 9.h3 0–0 10.d3 Bb7 11.Nbd2 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2 Qc7 11.h3).

6.Be2 0–0 7.0–0 Qc7 8.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 Qc7).

6.Be2 0–0 7.c4 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0–0 10.Be2).

6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 0–0 10.0–0 Nbd7 11.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0–0 10.Be2 Nbd7 11.0–0).

6.Be2 b6 7.0–0 0–0 8.a4 Bb7 9.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

6.Be2 Nbd7 7.c4 b6 8.a4 0–0 9.0–0 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

6.c4 0–0

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c5).

7.d3 Nbd7 8.Nbd2 b6 9.Be2 Bb7 10.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2).

7.Be2 b6 8.0–0 Bb7 9.d4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7).

7.Be2 b6 8.0–0 Nbd7 9.a4 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

7.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

7.Be2 Nbd7 8.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0).

7.Be2 Nbd7=+ 8.0–0 b6 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6).

7.Be2 Nbd7 8.0–0 b6 9.d4 Qc7 10.Nbd2 Bb7 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2 Qc7).

5.Nf3 Nbd7

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Nbd7).

6.a4 b6 7.c4 Bb7 8.d3 Bd6 9.Be2 0–0 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4 b6 9.d3 Bb7).

6.a4 b6 7.c4 Bb7 8.Be2 Be7 9.0–0 0–0 10.d3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.d3).

6.a4 Bd6 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.a4).

6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3).

6.c4 b6 7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Nbd7).

6.c4 b6 7.Be2 Bb7 8.0–0 Bd6 9.d4 Qc7 10.Nbd2 0–0 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2 Qc7).

6.c4 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

6.c4 Bd6 7.Qb3 0–0 8.Nc3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Nc3 0–0 8.Qb3).

6.c4 Bd6 7.d3 b6 8.Be2 Bb7 9.Nbd2 0–0 10.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2).

6.c4 Bd6 7.d4 0–0 8.Be2 Qc7 9.0–0 b6 10.Nbd2 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2 Qc7).

6.c4 Bd6 7.Be2 0–0 8.0–0 Qe7 9.d4 b6 10.Nbd2 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2 Qe7).

6.Be2 Bd6 7.c4 0–0 8.0–0 b6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6).

5.Nf3 Be7

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7).

6.a4 0–0 7.Be2 Nbd7 8.0–0 b6 9.Na3 Bb7 10.c4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.Na3).

6.c4 0–0 7.a4 b6 8.Be2 Bb7 9.0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4).

6.c4 0–0 7.d4 Nbd7 8.Nbd2 b6 9.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4 0–0 7.d4 d5 8.Nbd2 Nbd7 9.Be2 c5).

6.c4 0–0 7.Be2 b6 8.0–0 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

6.c4 b6 7.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 b6).

6.c4 Nbd7 7.a4 b6 8.Nc3 Bb7 9.Be2 0–0 10.0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.Nc3).

6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4 Nbd7).

6.d4 b6 7.Nbd2 0–0 8.c4 Bb7 9.Be2 Nbd7 10.0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4 Nbd7 10.Nbd2).

6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 c5).

6.Be2 0–0 7.0–0 b6 8.a4 Bb7 9.c4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4).

6.Be2 0–0 7.0–0 b6 8.c4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

6.Be2 0–0 7.0–0 Nbd7 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7 8.0–0).

4.e3 c6

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

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

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

5.a4 Bd7 6.c4 dc4 7.Bc4 cb5 8.ab5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 cb5 6.ab5 Bd7 7.c4 dc4 8.Bc4).

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

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

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

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

4.e3 Bd6

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6).

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

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

5.c4 0–0 6.Nf3 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 c5 (without 10.bc6) (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0–0).

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

5.c4 c5 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4).

5.c4 c5 6.Nf3 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

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

5.Nf3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 0–0 9.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Bd6 8.Nf3 0–0 9.c4).

5.Nf3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Nbd7 8.Nf3 Bd6).

5.Nf3 b6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bd6).

5.Nf3 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6).

5.Nf3 c5 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c5).

5.Nf3 c5 6.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

5.Nf3 c5 6.c4 Nbd7 7.a4 0–0 8.Be2 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4).

5.Nf3 c5 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7 10.d3 Qe7 11.Nbd2 a5 12.ba6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2 Qe7 11.a4 a6 12.ba6).

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

5.Nf3 Nbd7 6.a4 0–0 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0 7.a4).

5.Nf3 Nbd7 6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3).

5.Nf3 Nbd7 6.d4 0–0 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0 7.d4).

5.Nf3 Nbd7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.Be2 Nbd7).

5.f4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.f4).

5.f4 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Bd6).

5.f4 c5 6.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Nbd7 6.Nf3 Bd6).

5.f4 Nbd7 6.Nf3 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Bd6 6.Nf3 Nbd7).

5.Nf3 0–0

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

6.c4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Bd6 8.Nf3 0–0 9.c4).

6.c4 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Nbd7 8.Nf3 Bd6 9.c4 0–0).

6.c4 c5 7.a4 Nbd7 8.Be2 b6 9.0–0 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

6.c4 c5 7.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

6.c4 c5 7.Be2 Nbd7 8.0–0 b6 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6).

6.c4 c5 7.Be2 Nbd7 8.0–0 b6 9.a4 Bb7 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.a4 Bb7).

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

6.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0).

6.Be2 c5 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c5 7.Be2).

6.Be2 c5 7.c4 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0–0 10.Be2).

6.Be2 c5 7.c4 b6 8.0–0 Bb7 9.d4= Qe7 10.Nbd2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2 Qe7).

6.Be2 c5 7.c4 b6 8.d4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 TESTD650 8.d4 b6).

6.Be2 Nbd7 7.0–0 c5 8.c4 b6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6).

6.Be2 Nbd7 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0 7.Be2).

4.e3 Bd7

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

5.a4 a6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 Bd7).

5.a4 c6 6.c4 dc4 7.Bc4 cb5 8.ab5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 cb5 6.ab5 Bd7 7.c4 dc4 8.Bc4).

5.c4 c6 6.Nf3 Be7 7.a4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 Bd7).

5.Nf3 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd7).

4.e3 Nbd7

5.c4 c6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c6 5.c4 Nbd7).

5.Nf3 c5 6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3).

5.Nf3 c5 6.Be2 Bd6 7.c4 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2).

5.Nf3 Bd6 6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3).

5.Nf3 Bd6 6.c4 c5 7.a4 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4).

5.Nf3 Bd6 6.d4 c5 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.d4).

5.Nf3 Bd6 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.Be2 Nbd7).

5.Nf3 Bd6 6.Be2 0–0 7.0–0 c5 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0).

5.Nf3 Be7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 Nbd7).

5.f4 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Nbd7).

5.f4 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.f4 Nbd7).

4.e3 Be7

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7).

5.c4 c5 6.Nf3 0–0 7.Be2 b6 8.0–0 Bb7 9.d4 Nbd7 10.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.d4).

5.c4 c5 6.Nf3 0–0 7.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7 7.Be2 0–0).

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

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

5.c4 c6 6.a4 0–0 7.Nf3 dc4 8.Bc4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.c4 dc4 6.Bc4 0–0 7.Nf3 c6 8.a4).

5.Be2 0–0 6.Nf3 Nbd7 7.0–0 c5 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7 8.0–0).

5.Be2 c5 6.Nf3 0–0 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2).

5.Nf3 b6 6.c4 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bb7 6.c4 Be7).

5.Nf3 b6 6.Be2 Bb7 (-->1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.Be2 d5).

5.Nf3 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7).

5.Nf3 c5 6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4).

5.Nf3 c5 6.c4 0–0 7.Be2 b6 8.0–0 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

5.Nf3 c5 6.c4 0–0 7.Be2 Nbd7 8.0–0 b6 9.a4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7).

5.Nf3 c5 6.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7).

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

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

5.Nf3 Bd7 6.a4 0–0 7.c4 c6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 Bd7).

5.Nf3 Nbd7 6.a4 0–0 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0 7.a4).

5.Nf3 Nbd7 6.a4 c5 7.c4 0–0 8.Be2 b6 9.0–0 Bb7 10.d3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.d3).

5.Nf3 Nbd7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 Nbd7).

5.f4 0–0 6.Nf3 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Be7 6.Nf3 0–0).

5.f4 a6 6.a4 0–0 7.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.f4 0–0 6.Nf3 a6 7.a4).

5.f4 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.f4 Be7).

5.c4 0–0

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

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

6.Nf3 a6 7.a4 c6 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6 8.Be2).

6.Nf3 b6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.c4 b6).

6.Nf3 c5 7.a4 a6 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 a6 8.a4).

5.Nf3 0–0

6.c4 a6 7.a4 c5 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 a6 8.a4).

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

6.c4 b6 7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4 0–0 7.Be2 d5).

6.c4 dc4 7.Bc4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.c4 dc4 6.Bc4 0–0 7.Nf3).

6.c4 c5 (no 7.bc6) (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0).

6.c4 c5 7.Nc3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.c4 c5 7.Nc3).

6.c4 c5 7.Be2 b6 8.0–0 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

6.c4 c5 7.Be2 b6 8.0–0 Bb7 9.d4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4).

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

6.c4 c6 7.a4 b6 8.Be2 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.c4 Bb7 6.Nf3 Be7 7.Be2 0–0 8.a4 c6).

6.c4 c6 7.Nc3 a6 8.a4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6 8.Nc3).

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

6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Be7 8.Nf3 0–0 9.Be2).

6.Be2 a6 7.a4 c5 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 a6 8.a4).

6.Be2 b6 7.0–0 Bb7 8.c4 c5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

6.Be2 b6 7.0–0 Bb7 8.c4 c5 9.Qc2 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.Qc2).

6.Be2 c5 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2).

6.Be2 c5 7.c4 b6 8.0–0 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

6.Be2 c5 7.c4 b6 8.0–0 Bb7 9.d4 Nbd7 10.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.d4).

6.Be2 c5 7.c4 b6 8.d4 Bb7 9.Nbd2 Nbd7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4 0–0 7.d4 d5 8.Nbd2 Nbd7 9.Be2 c5).

4.e3 g6

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 g6).

5.d4 Bg7 6.Nf3 0–0 7.c4 c6 8.a4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 g6 5.c4 c6 6.a4 Bg7 7.Nf3 0–0 8.d4).

4.f3 Be7

5.g3 0–0 6.Bg2 c5 7.e3 b6 8.Ne2 Bb7 9.0–0 Nbd7 10.d3 Rc8 11.c4 d4 12.e4 e5 13.f4 Ng4 14.f5? Ne3–+ 15.Qe1 Nf1 16.Qf1 g6 17.g4 f6 18.Ng3 a6 19.a4 a5 20.Nd2 Kf7 21.h4 Ke8 22.Nf3 Rf7 23.Kh2 Nf8 24.Bc1 g5 25.h5?? h6–/+ 26.Bd2 Bd6 27.Qf2 Nd7 28.Rg1 Ke7 29.Ne1 Qg8–+ 30.Bh3 Rcf8 31.Nf1 Kd8 32.Qg3 Kc7 33.Ng2 Be4?? 34.de4+/– Re7 35.Qe1?? Qc4–/+ 36.Ba5 Qa4 37.Bd2 c4 38.Ng3 c3 39.Bc3 dc3 40.Qc3 Nc5 41.Ra1 Qb5 42.Ne3 Kb7 43.Nd5 Ne4?? 44.Ne4+/– Qe2?? 45.Bg2+– Qg4 46.Nd6 Kb8 47.Ra8! Ka8 48.Ne7 Kb8 49.Nc6 Ka8 50.Ne5 Qg2 51.Kg2 (51…fe5 52.Qc6 Kb8 53.Qb7) 1–0. MasterofDisaster – distaff, Caissa.com, 2004.

5.g3 c6 6.a4 cb5 7.ab5 Bd7 8.e3 0–0=+ 9.Nc3 Bb4 10.Be2 Qe8 11.Na2 Be7 12.c4 dc4–/+ 13.Nh3 Bb5–+ 14.Nc3 Ba6 15.e4 b5 16.0–0 Bb7 17.d4 a6 18.d5 ed5 19.ed5 Bd6 20.Rf2 Bc5 21.Qe1 Bf2 22.Qf2 Nd5 23.Qd4?? Nf6 24.Ne4 Nbd7 25.g4 h6 26.g5 hg5 27.Nhg5 Rd8 28.Nd6 Qe2 29.Bc3 Bf3 30.Re1 Qg2 0–1. MasterofDisaster – goshawk62, Caissa.com, 2004.

4.Nf3

4.Nf3 (--> 1.b4 d5 2.Bb2 e6 3.Nf3 Nf6 4.b5).

4.Nf3 a6 5.a4 Bd6 6.e3 0–0 7.Be2 ab5 8.ab5 Ra1 9.Ba1 c5 10.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c5 8.Nf3 Bd6 9.c4 0–0 10.Be2).

4.Nf3 c6 5.a4 Bd7 6.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd7 5.Nf3 c6 6.a4).

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

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

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

4.Nf3 Bd7 5.e3 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 Bd7).

4.Nf3 b6

5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3).

5.e3 Be7 6.Be2 0–0 7.c4 Bb7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bb7 6.c4 Be7 7.Be2 0–0).

4.Nf3 c5

5.c4 Bd6 6.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4).

5.c4 Nbd7 6.a4 Bd6 7.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.a4).

5.c4 Nbd7 6.e3 Bd6 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3).

5.e3 Bd6 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c5).

5.e3 Bd6 6.c4 0–0 7.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c5 7.Be2).

5.e3 Bd6 6.c4 0–0 7.Be2 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

5.e3 Bd6 6.c4 b6 7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Bd6).

5.e3 Bd6 6.d3 b6 7.c4 Bb7 8.Be2 0–0 9.0–0 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7).

5.e3 Bd6 6.Be2 Nbd7 7.a4 0–0 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4).

5.e3 Nbd7 6.c4 Bd6 7.Be2 0–0 8.Nc3 b6 9.0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.Nc3).

5.e3 Nbd7 6.c4 Be7 7.Nc3 0–0 8.Be2 b6 9.0–0 Bb7 10.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.Nc3).

5.e3 Nbd7 6.c4 Be7 7.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7).

4.Nf3 Bd6

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

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

5.e3 0–0 6.c4 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0).

5.e3 0–0 6.Be2 Nbd7 7.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 0–0 7.Be2).

5.e3 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6).

5.e3 c5 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.c4 c5).

5.e3 Nbd7 6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3).

5.e3 Nbd7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.Be2 Nbd7).

4.Nf3 Nbd7

5.e3 Bd6 6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3).

5.e3 Bd6 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.Be2 Nbd7).

5.e3 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 Nbd7).

5.e3 Be7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 Nbd7).

4.Nf3 Be7

5.c4 dc4 6.e3 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.c4 dc4).

5.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3).

5.e3 0–0 6.a4 c5 7.Be2 b6 8.0–0 Bb7 9.c4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4).

5.e3 0–0 6.c4 dc4 7.Bc4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.c4 dc4 6.Bc4 0–0 7.Nf3).

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

5.e3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Be7 8.Nf3).

5.e3 Nbd7 6.c4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.c4 Nbd7).

4.g3 a6

5.a4 Bd7 6.e3 Bd6 7.f4 0–0 8.Nf3 h6 9.Be2 Ne4 10.Nc3 Qe8 11.0–0 Nc3 12.Bc3 ab5 (12...f6) 13.ab5 Ra1 14.Qa1 Bb5? (better is 14...f6) 15.Bb5 Qb5 16.Bg7 Rd8 17.Qf6 Bf8 18.Qd8 Kg7 19.Qb8 1–0. Wall,Bill – Guest1938787, playchess.com, 2012.

5.ba6 Na6 6.Bg2 Nc5 7.Nf3 Bd7 8.0–0 b6 9.d4 Nce4 10.Ne5= Bd6 11.Be4?? Ne4–/+ 12.f3 Ng5 13.f4 Ne4–/+ 14.f5 Qg5 15.fe6 Be6–+ 16.e3? Qe3 17.Kh1? Nf2 18.Rf2 Qf2 19.Nd2 Bh3 20.Qg1 Qd2 21.Re1 0–0–0 22.Nf7 Rde8 23.Re8 Re8 24.Bc1 Qc2 25.Nd6 cd6 26.Bf4 Re1! 27.Qe1 Qg2# 0–1. bby – zopo2, Caissa.com, 2004.

3...d6

4.a4 Bd7 5.e3 a6 6.Nf3 ab5 7.ab5 Ra1 8.Ba1 c6 9.c4 Qa5 10.Nc3 cb5 11.cb5 Be7 12.Be2 d5 13.Ne5 0–0 14.0–0 Be8 15.h3 Nbd7 16.Nd7 Bd7 17.Qb3 Rc8 0–1. j1a9n55 – cepra1, kurnik, 2011.

4.c4 Nbd7 5.f4 c5 6.Nf3 b6 7.e3 Bb7 8.Be2 Be7 9.0–0 Qc7 10.Nc3 0–0 11.f5 Rfe8 12.fe6 fe6 13.Ng5 Bf8 14.Bg4 Ng4 15.Qg4 Ne5 16.Qh3 h6=+ 17.Ne6 Qd7 18.Nf8 Qh3 19.gh3 Rf8 20.Nd5 Nc4 21.Ne7 Kh7 22.Bc3 Ne5 23.Be5 de5 24.d4 ed4 25.ed4 cd4 26.Rad1 Rf1 27.Rf1 Rd8 28.Rd1 Be4 29.Rd2 d3 30.Kf2 Rd7 31.Nc6 Bc6 32.bc6 Rc7 33.Rd3 Rc6 34.Ra3 a5 35.Ke3 Rc5 36.Rb3 b5 37.Ra3 b4 38.Rb3? Rh5 39.Kd2 Rg5 40.a3 Rg2 41.Ke1 Rh2 42.ab4 ab4 43.Kf1 Kg6 44.Kg1 Rc2 45.Rb4 Rc3 46.Kg2 Rc2 47.Kg3 Rc3 48.Kg4 Kh7 49.h4 Rc1 50.h5 Rg1 51.Kf4? Rh1?? 52.Rb5 Rh2 53.Kg4 Rh1 54.Kg3 Rg1 55.Kf4 Rd1 56.Ke5 Rc1 57.Ke6 Rd1 58.Re5?? Rg1 59.Kf7 Rg5 60.Re8? Rh5–+ 61.Re4 Rf5 62.Ke6 Rf6 63.Ke5 h5 64.Rh4 Kh6 65.Rh1 Rf3 66.Ke4 Rf8 67.Ke5 g5 68.Ke6 Rg8 69.Kf5 g4 70.Kf4 g3 71.Kf3 h4?? 72.Kg2?? Kh5 73.Kh3 g2 74.Rg1–/+ Rg3 75.Kh2 Kg4 76.Rg2= Kf3 77.Ra2 h3?? 78.Ra3+– Kf2 79.Rg3 Kf1 80.Rh3 (80.Rh3 Kf2 81.Kh1 Ke2 82.Kg1 Kd2 83.Kf1 Kd1 84.Rd3 Kc2 85.Ke2 Kc1 86.Rd2 Kb1 87.Kd1 Ka1 88.Kc2 Ka2 89.Rd3 Ka1 90.Ra3) 1–0. orangutanb4 (1890) – dan712 (1800), kurnik, 2011.

4.e3 c5 5.Nf3 Be7 6.Nc3 0–0 7.Bd3 a6 8.a4 ab5 9.ab5 Ra1 10.Qa1 Qc7 11.Qa7 d5 12.b6+/– Qd6? 13.Nb5+– Qd7 14.Ne5 Qe8? 15.Nc7 Qd8 16.Qb8 Bd6 17.Bb5 Be5 18.Be5 Qe7 19.0–0 Nd7 20.Bd7 Bd7 21.Qb7 f6 22.Bg3 h6 23.Rb1 Bc8 24.Qc6 Bd7 25.Qd6 Qd6 26.Bd6 Rd8 27.b7 Rb8 28.Nd5! (28.Nd5 ed5 29.Bb8+–) 1–0. pcmvr (2775) – bvanderweerd (2125), net–chess.com, 2008.

4.e3 Nbd7 5.c4 Qe7 6.Nf3 e5 7.d3 g6 8.Be2 Bg7 9.0–0 0–0 10.Nc3 Re8 11.Nd2 h5 12.Rc1 Nc5 13.Nb3 Bg4 14.Nc5 dc5 15.Bg4 hg4 16.Ne4 Rad8 17.Nf6 Bf6 18.Qg4 Rd3 19.Qe4 Qd7 20.Qb7 Rd2 21.Bc3 Ra2 22.Qf3 Kg7 23.Rfd1 Qe6 24.Rd5 a6 25.Rc5 ab5 26.cb5 Qb3 27.Rc6 Re6 28.Re6 Qe6 29.g3 Qc4 30.Qf6 Kf6 31.Be5 Ke5 32.Rc4 Ra7 33.h4 Rb7 34.Rc5 Kd6 35.Rg5 Ke6 36.Kg2 f6 37.Rc5 Kd6 38.Rc6 Ke7 39.Kf3 Rb5 40.Rc7 Ke6 41.g4 Rb4 42.Rg7 1–0. Bulcourf – Campos, Buenos Aires 1992.

4.e3 Be7 (--> 3.b5 Be7 4.e3 d6).

4.Nf3 Nbd7 5.e3 Be7 6.c4 0–0 7.Qc2 a6 8.Nc3 c6 9.a4 d5 10.bc6 bc6 11.Nd4 Ne5 12.f4+/– Nc4 13.Nc6+= Qc7 14.Ne7 Qe7 15.Bc4 dc4 16.Ba3 Qd8? 17.Bf8+– Qf8 18.Ne4 Qe7 19.0–0 Bb7 20.Nf6 Qf6 21.Qc4 Qg6 22.Qe2 a5 23.Rac1 h6 24.d3 Ba6 25.e4 Rd8 26.Rfd1 Qf6 27.Qe3 Rd4 28.Rc6 Bb7 29.Rc4 Rc4 30.dc4 Qg6 31.f5 ef5+/– 32.Qg3 Qg3+= 33.hg3 fe4 34.Kf2 Bc6 35.c5 Ba4 36.Ra1+/– Bc6 37.Ra5 Kf8 38.Ra6 Bd5 39.Rd6 e3 40.Ke3+– Bg2? 41.c6 Bh3 42.c7 Ke7 43.Rd8 h5 44.c8Q Bc8 45.Rc8 Kf6 46.Rc5 g6 47.Kf4 Kg7 48.Rc7 Kf6 49.Rc6 Ke7 50.Kg5 Kd7 51.Ra6 Ke7 52.Kh6 Kf8 53.Ra8 Ke7 54.Kg7 Ke6 55.Ra6 Kf5 56.Kf7 g5 57.Ra4 g4 58.Ra5 Ke4 59.Kg6 Kf3 60.Ra3 Kg2 61.Kh5 Kh3 62.Kg5 Kg2 63.Kg4 (63…Kf2 64.Kf5+–) 1–0. Paggalis,G – Goutioudi,Irini, Patras op 3rd, 2001.

4.Nf3 Be7 5.c4 c5 6.e3 0–0 7.Be2 b6 8.0–0 Bb7 9.a4 Nbd7 10.Nc3 Ne5 11.Ne5 de5 12.d3 g6 13.a5 ba5 14.Qa4 Rc8 15.Qa5 Ra8 16.Qd8 Rfd8 17.Ba3 a6 18.b6 Bc6 19.Rfb1 Rdb8 20.Ra2 Bd8 21.Rab2 Nd7 22.b7 Ra7 23.Bf3 Bf3 24.gf3 Ba5 25.Na4 Bb4 26.Bb4 cb4 27.Rb4 e4 28.fe4 Ne5 29.Rb6 Nd3 30.c5 Ne5 31.f4 Nd7 32.R6b3 f5 33.c6 1–0. Bonetti,Shane – LIPATTI, ICC, 2002.

4.a4 Be7

5.Nc3 0–0 6.Nf3 Bd7 7.e4 e5 8.Be2 c5 9.Bc4 b6 10.–0 Ng4?? (better is 10...Bc8+/–) 11.Bd5+– Be6 (11...Na6 12.Ba8 Qa8 13.ba6+–) 12.Ba8 Bc4 (12...Nf6 13.Ng5+–) 13.d3 Be6 14.Bd5 Bd5 15.Nd5 Bg5 (15...Nf6 16.Ne3+–) 16.Ng5 Qg5 17.f3 Ne3 (17...Nh6 18.a5 Nd7 19.Qe1+–) 18.Qd2 Qg2 19.Qg2 Ng2 20.Kg2 Nd7 21.Ne7 Kh8 22.Nf5 Nf6 23.Nd6 Nh5 24.Be5 f6 25.Bc3 Rd8 26.Nf7 Kg8 27.Nd8 1–0. Janek – Vincenzo, internet, 2016.

5.e3 0–0 6.Na3 a6 7.c4 ab5 8.ab5 c6 9.Nc2 cb5?? 10.Ra8+– b6 11.Rb8 Qc7 12.Rc8! Qc8 13.cb5 Qc5 14.Nd4 Nd5 15.Nc6 Bg5 16.f4 Bh6 17.Nf3 Nb4 18.Be2 Nc6 19.bc6 Qc6 20.Qc1 Qd5 21.Qc4 Qf5 22.0–0 d5 23.Qd3 Qh5 24.Ne5 Qh4 25.g3 Qh3 26.Qd4 f6 27.Bg4 fe5 28.Bh3 ed4 29.Bd4 Rb8 30.Be6 Kf8 31.Bd5 Ke7 32.Rb1 Kd6 33.Bc4 Ra8 34.Rb6 Kd7 35.Rb7 Kc6 36.Rg7 Bg7 37.Bg7 Ra4 38.d3 Ra3 39.h4 Kd7 40.Kg2 Ra7 41.Bd4 Ra4 42.Bg8 Ke7 43.Bh7 Ra2 44.Kf3 Ra3 45.Be4 Kf7 46.h5 Ra6 47.g4 Kg8 48.g5 Rd6 49.h6 Re6 50.h7 Kf7 51.h8Q Ra6 52.Qg7 Ke8 53.Bg6 Kd8 54.Bf6 Kc8 55.Bf5 Kb8 56.Be5 Ka8 57.Be4 Rc6 58.Bc6 1–0. poganinbezdom – jurand55, kurnik, 2011.

5.e3 0–0 6.Na3 b6 7.c4 Bb7 8.Nf3 Nbd7 9.Be2 Nc5 10.0–0 d5 11.d4 Nce4 12.cd5 Bd5 13.Ne5 Bd6 14.Nc6 Qe8 15.Rc1 a6 16.f3 Ng5 17.e4 Bc6+/– 18.Rc6 ab5 19.Bb5 Qd8 20.Nc2 h6? 21.e5+– Nd5 22.ed6 cd6 23.Ba3 Re8 24.Rd6 Qf6 25.Be8 Re8 26.Rd5! ed5 27.Qd3 Qe6 28.Re1 Qd7 29.Re8 Qe8 30.Qe3 Qa4 31.Qc3 b5 32.Kf2 Ne6 33.g3 Kh7 34.h4 Qa8 35.Qd3 g6 36.Bb4 Qa4 37.f4 Nc7 38.f5 Na6?! 39.Bd2 b4 40.fg6 fg6 41.Nb4! Nb4 42.Bb4?? Qb4 43.h5 1–0. poganinbezdom – adekbiz3, kurnik, 2011.

5.e3 0–0 6.c4 b6 7.Na3 Bb7 8.Nf3 Nbd7 9.d4 Rc8 10.Be2 a6 11.0–0 c6 12.Qb3 cb5 13.ab5 ab5 14.Nb5 Bc6 15.Na7 Rc7 16.Nc6 Rc6 17.Bd3 d5 18.cd5 Nd5 19.Ne5 Rc7 20.Nc4 h6 21.g3 Qb8 22.e4 Nb4 23.Be2 Rfc8 24.Rfc1 b5 25.Nd2?? Nf6?? 26.Rc7+/– Rc7 27.f3 Ra7 28.Ra7+/– Qa7 29.Kg2 Qc7 30.Bb5 Qc2 31.Qc2 Nc2 32.Bc6 Bb4 33.Nc4 Kf8 34.Kf2 Ne8 35.Ne3 Ne3 36.Ke3 Nd6 37.Kd3 Ba5? 38.d5 ed5 39.ed5 Bc7 40.f4 Nf5 41.Ke4 g6 42.Be5 Be5 43.fe5 Ne7 44.Bd7 Kg7 45.d6 Ng8 46.Kd5 f6 47.e6 f5 48.e7 Nf6 49.Ke6 Ne4 50.e8Q Nc5 51.Ke5 Nd3 52.Kd4 Nf4 53.Qe7 Kg8 54.Qe8 (54.Qe8 Kg7 55.Be6 Ne6 56.Qe6 h5 57.Qe7 Kh6 58.d7 h4 59.d8Q g5 60.Qg5 Kh7 61.Qdg8; 54.Be6 Ne6 55.Qe6 Kh8 56.d7 h5 57.Qg6 f4 58.d8Q) 1–0. poganinbezdom (1625) – kent03, kurnik, 2011.

5.e3 0–0 6.Nf3 b6 7.Na3 c6 8.c4 d5 9.cd5 Nd5 10.Be2 cb5 11.ab5 Bb7 12.0–0 Bf6 13.d4 Nd7 14.Nc4 Qc7 15.Nfe5 Ne5 16.Ne5 Rfd8 17.Rc1 Qd6 18.Qb3 Be5 19.de5 Qe7 20.Rfd1 Qg5 21.Bf3 Rac8 22.Bd4 a6 23.ba6 Ba6 24.g3 Bb7 25.Bd5 Bd5= 26.Qb6 Rc1 27.Rc1+= h6 28.f4 Qe7 29.Qb2 Qb7 30.Qb7 Bb7 31.Rc7 Bd5 32.Kf2 Ra8 33.Rc2 Ra2 34.Ra2 Ba2 35.h4 Bd5 36.Ke2 g6 37.Kd3 h5 38.Kc3 Kf8 39.Kb4 Ke8 40.Kγ5 Kd7 41.Kb6 Be4 42.Bc5 Bd5 43.Bf8 Be4 44.Bg7 Bd5 45.Kc5 Be4 46.Kd4 Bd5 47.e4 Ba8 48.Ke3 Kc6 49.f5 ef5 50.ef5 gf5 51.Kf4 Kd5? 52.Kf5+– Bc6 53.Kg5 Ke4 54.Kh5 Kf3 55.g4 Bd7 56.g5 Bg4 57.Kh6 Bf5 58.Bf6 Kf4 59.h5 Ke4 60.g6 fg6 61.hg6 1–0. poganinbezdom – adekbiz3, kurnik, 2011.

4.e3 c6

5.a4 cb5 6.ab5 b6 7.c4 d5 8.Nf3 dc4 9.Bc4 Nbd7 10.0–0 Be7 11.Ng5 Nc5 12.d4 Nce4 13.Ne4 Ne4 14.Qf3 Bb7+= 15.Nc3 Nd6= 16.Qe2 0–0 17.Bd3+/– Bf6 18.Qh5 h6 19.Ra4+/– Bh4 20.d5 Qg5?? 21.Rh4+– f5 22.Qg5 hg5 23.Rh5 ed5 24.Rg5 Rf7 25.Ne2 a6 26.Ng3 ab5 27.Nf5 Nf5 28.Bf5 Rc7 29.Be6 (29…Kh7 30.Bd5 Bd5 31.Rh5 Kg8 32.Rd5+–) 1–0. Woelfelschneider,Peter – Fissenebert,H, corr ICCF 2–2438, 1986.

5.c4 cb5 6.cb5 d5 7.Nf3 Bd7 8.a4 a6 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 Bb4 12.Be2 0–0 13.0–0 Qb6 14.Na4 Qd6 15.Bf6 gf6 16.Qf6 e5 17.Qd6 Bd6+/– 18.Nb6 e4 19.Nd4 Be8? 20.Nd5+– Nd7 21.Nf5 Be5 22.Rc1 Nf6 23.Nde7 Kh8 24.Rc8 Nd7 25.g4 Nf6 26.h4 Bb2 27.g5 Nd5 1–0. elsh1403 (1610) – diklo, kurnik, 2011.

3...Qe7

4.c4 Qc5 5.e3= Qf5 (5...d5 6.cd5 Qd5 7.Bf6 gf6 8.Nc3+=) 6.Nf3 b6 (6...Bc5 7.d4 Bb4 8.Bc3 Bc3 9.Nc3+=) 7.Nd4+= Qe5 8.Be2 Bd6 (better is 8...Bb7 9.Bf3 Bf3 10.Qf3 Qe4+=) 9.f4 Qe4 (9...Qc5 10.Ba3 Qa3 11.Na3 Ba3+–) 10.Bf3 Qg6 (10...Qd3 11.Ba8 Qc4 12.Na3 Ba3 13.Ba3+–) 11.Ba8 0–0 12.Bf3 (12.0–0 e5 13.fe5 Be5+–) 12...c5 13.bc6 dc6 14.Nc6 Nc6 15.Bc6 Ba6 (15...Bd7 16.Bd7 Qg2 17.Rf1 Nd7 18.Qa4+–) 16.Na3 (16.d3 Rc8 17.Bf3 b5+–) 16...Rc8 17.Qa4 Qd3 (17...Bb4 18.Bf3 Ba5 19.Bc3+–) 18.Qa6 Rc6 19.Qa7 Ne4 (19...Rc8 20.Qa6 Rb8 21.Bf6 Ba3 22.Bc3+–) 20.Rd1 (20.Qa8!? Bf8 21.Rd1 Rd6+–) 20...Rc8 21.Qa4 (21.Qb7 Rb8 22.Qd7 Ra8+–) 21...Bc5 (21...Ba3 22.Ba3 h6 23.Qb3 Qc4 24.d3 Qb3 25.ab3+–) 22.Qc2 Rd8 23.Qd3 Rd3 24.Nb5 (24.Nb1 f6+–) 24...Bb4 25.Bc3 Bc3 26.Nc3 (26.dc3 Rd1 27.Kd1 Nf2 28.Ke2 Nh1+–) 26...Nc3 27.dc3 Re3 (27...Rd1 28.Kd1 f6+–) 28.Kf2 Rc3 29.Rd8# 1–0. Dessing,Bastiaan – Springelkamp,Henriet, Hengelo U14 open, 2003.

4.c4 d6 5.d4 =+.

4.e3 Qb4 5.Be5 White gets strong initiative 5...Ne4 6.Nc3 (worse is 6.Bc7 Qb2 7.f3 Qa1 8.fe4 Qa2–/+) 6...Nd6 (6...d6 7.Rb1 Qc5 8.Ne4 Qe5 9.Bd3=) 7.Be2 a6 8.Rb1 (8.ba6 Na6 9.Nf3 f6=) 8...Qc5 (8...Qa5 9.Nf3+=) 9.Bd4 Qg5 (9...Qa3 10.b6 Nc6 11.Nf3+=) 10.Nf3 Qg2 11.Rg1 Qh3 12.Bg7 Rg8 (12...Bg7!? 13.Rg7 ab5 14.Bb5 b6+=) 13.Rg3+/– Qf5? (better is 13...Qh5 14.Bf8 Rf8+/–) 14.Nh4+– Qc5 (14...Bg7 15.Nf5 Nf5+–) 15.Bd4 Qa3 (15...Rg3 16.Bc5 Rg1 17.Bf1 Nb5 18.Nb5 ab5 19.Bf8 Kf8+–) 16.Rg8 Ke7 17.Rb3 Qa5 18.Bc5 ab5 19.Rb5 Qa6 20.Nf5! ef5 21.Nd5 Ke8 (21...Ke6 22.Nc7 Ke7 23.Na6 Ra6 24.Qa1 Nc6 25.Bd6 Kd6 26.Rf8 Kc7 27.Rf5 Ra4 28.R5f7 h5 29.Qg7 h4 30.Bg4 Rb4 31.Bd7 Kb6 32.Bc8 Kb5 33.Rb7 Ka4 34.Ra7 Na5 35.Bd7 Rb5 36.Qc3 h3 37.Qa5) 22.Qa1 f6 (22...Nc6 23.Rf8! Kf8 24.Qh8) 23.Bh5 Kd8 24.Qf6# 1–0. Kern,Michael – Bell,Alexander, compuserve, 1997.

4.e3 d6 5.Nf3 =.

4.Nf3 d5 =.

3...Be7

4.a4 b6 5.e4 (5.Nf3 0–0=) 5...Ne4 (5...Bb7 6.e5 Ne4 7.d3+/–) 6.Bg7 Rg8 7.Bb2 Bb7 8.Nf3 (8.a5 ba5 9.Qh5 Nf6=+) 8...Bf6 (8...a6 9.d3 Bf6 10.c3=+) 9.d4= d6 (9...a6 10.a5=+) 10.g3 (10.Rg1 c5=) 10...c5=+ 11.Bg2 cd4 (11...a6 12.Nbd2=+) 12.0–0 (12.Nd4 Ng3 13.Bb7 Nh1+=) 12...Nc5 (12...e5 13.Re1 d5 14.Nfd2=+) 13.Nd4= Bg2 14.Kg2 Nbd7 15.Re1 (15.Nc6 Qc7 16.Bf6 Nf6=) 15...Rc8 (15...a6 16.Nc6 Qc7 17.Bf6 Nf6 18.Nc3=) 16.a5 ba5 (16...Ne5 17.Bc3=) 17.Nc6 Qc7 (17...Rc6 18.bc6 Bb2 19.cd7 Kd7 20.Ra2=) 18.Bf6 Nf6 19.Ra5 a6 20.c4 Nfe4 21.Re4 ab5 22.cb5 Ne4=+ 23.Qd4 d5 24.Ra7= Qf4 25.b6 e5 26.Ne5 Ng3 27.Qf4 Ne2 28.Qg3 Rg3 29.hg3 Rc1 30.Na3 Rg1 31.Kh2 Rf1 32.Rf7 Nd4 33.b7 Nc6 34.Nb5 Nb8 35.Nc7 Kd8 36.Nd5 (36...Rf2 37.Rf2 Ke8 38.Rf7 h6 39.Re7 Kf8 40.Ng6 Kg8 41.Nf6#) 1–0. Van Esbroeck,Jeff – Posey,Robert (1795), EM/C/A019 ICCF Email, 1997.

4.Nc3 c5 5.e4= a6 6.Nf3 ab5 7.Nb5 Qb6 8.e5 Ng4 9.Nd6?? Bd6–+ 10.ed6 c4 11.Bd4+= Qd6 12.h3 Nc6 13.Bc3 Nge5? 14.Be2?? Nf3 15.Bf3 0–0–/+ 16.0–0 Nd4 17.Re1 Nf3 18.Qf3 Ra7 19.Re4 b5?? 20.Rg4 e5 21.Qg3 Re8?? 22.Rg7+– Kh8 23.Rf7 Qg6 24.Be5 Kg8 25.Rg7 (25.Rg7 Kf8 26.Qf3 Qf6 27.Qf6#) 1–0. mic (2195) – bvanderweerd (2125), net–chess.com, 2008.

4.Nc3 d5 5.e3 a6 6.Nf3 ab5 7.Bb5 Bd7 8.0–0 0–0 9.Qe2 c6 10.Bd3 Na6 11.Ba6 Ra6 12.Ne5 Bd6 13.f4 Qc7 14.Rf3 Be5 15.fe5=+ Ng4 16.Rh3 Nh6 17.Qh5 Rfa8 18.Rf1 Qb6 19.Rf6 Qb2 20.Rg3?? Kh8= 21.Rg7 Kg7 22.Qh6 Kg8 23.Qg5 Kf8 24.Qh6 Ke7 25.Rf7 Kd8 26.Qh7+/– Qc1 27.Kf2+– Kc8 28.Rd7 Qd2?? 29.Kf3 Rb6 30.Qe7 Kb8 31.Rd8 Ka7 32.Qa3 Ra6 33.Qc5 Rb6 34.Qa5 Ra6 35.Nb5! cb5 36.Ra8 Ka8 37.Qd2 Ra2 38.g4 Kb8 39.g5 Kc8 40.g6 Kd8 41.g7 (41.g7 Ra7 42.g8Q Kd7 43.Qc3 Ra8 44.Qf7 Kd8 45.Qcc7#) 1–0. pierre – Cmixmax, chess.com, 2007.

4.c4 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 0–0 8.Bf6 Bf6 9.e3 d5 10.d4 Nd7 11.Nf3 c6 12.Nbd2 Qa5 13.bc6 bc6 14.Be2 Ba6 15.0–0 Ra8 16.cd5 cd5 17.Ba6 Qa6 18.Qc2 h6 19.h3 Qa4 20.Rc1 Qc2 21.Rc2 Nb6 22.g4 Rc8 23.Rc8 Nc8 24.Ne1 Nd6 25.Nd3 Nc4 26.Nc4 dc4 27.Nb4 Be7 28.Nc2 Kf8 29.Kf1 Ke8 30.Ke1 Kd7 31.Kd2 Kc6 32.Kc3 Kb5 33.e4 Bd6 34.e5 Be7 35.f4 g6 36.Ne3 Bb4 37.Kc2 Ba5 38.f5 g5 39.d5 ed5 40.Nd5 Kc5 41.Nf6 Bc7 42.e6 fe6 43.fe6 Bd6 44.Ng8 Kd5? 45.e7+– Be7 46.Ne7 Ke5 47.Ng8 Kf4 48.Nh6 Kg3 49.Ng8 Kh3 50.Nf6 Kg3 51.Kc3 Kf4 52.Kc4 Ke5 53.Nh5 Ke4 54.Kc5 Ke5 55.Kc6 Ke6 56.Kc7 Ke7 57.Ng3 Ke6 58.Kd8 Ke5 59.Nh5 Ke6 60.Ke8 Ke5 61.Kf7 Ke4 62.Kg6 Kf3 63.Kg5 Ke4 64.Kf6 Kd5 65.g5 Kd6 66.g6 Kd5 67.g7 Ke4 68.g8Q Kd4 69.Qe6 Kd3 70.Qe5 Kc4 71.Qd6 Kc3 72.Qd5 Kc2 73.Qd4 Kb3 74.Qc5 Kb2 75.Qc4 Ka3 76.Qb5 Ka2 77.Qb8 Ka3 78.Ke5 Ka4 79.Kd4 Ka5 80.Kc3 Ka6 81.Kc4 Ka5 82.Qb5 1–0. ludice (1740) – marzec24 (1765), kurnik, 2011.

4.c4 Bc5 5.e3 h6 (5...0–0 6.Nc3=) 6.Nf3 0–0 7.Be2 Be7 8.0–0 b6 (8...a6 9.a4+=) 9.a4 Bb7 10.d4 c6 11.Nbd2 d6 12.Qb3 Nbd7 13.Ra2 d5 14.Rfa1 Qc7 (14...Rc8 15.bc6 Bc6 16.Rc1+=) 15.a5 (15.bc6 Bc6 16.Rc1 Qd8+=) 15...c5 16.a6 (16.Qc2 Bd6+=) 16...Bc8 (16...dc4 17.Bc4 (worse is 17.Qc4 Bd5 18.Qc2 Ba2–/+) 17...Bd5 18.Rc1=) 17.cd5 (17.Rc1!?+/–) 17...ed5= 18.Rc1 c4 (better is 18...Bd6!?=) 19.Qc2+/– Nh7 (19...Re8!? 20.e4 Bb4+–) 20.e4 (20.Nc4 Ndf6 (worse is 20...dc4 21.Qe4 Nc5 22.dc5+–) 21.Nce5 Qc2 22.Rc2 Re8+–) 20...Ndf6 21.ed5 Nd5 22.Bc4 (22.Nc4?! Nb4 23.Qb3 Na2 24.Qa2 Be6+=) 22...Qd6?? (better is 22...Be6 23.Qb3 Qd8+–) 23.Ba3 Nb4 (23...Qd8 24.Bd5 Ba3 25.Ba8 (25.Ra3?! Qd5 26.Qc4 Nf6+/–) 25...Bc1 26.Qc1+–) 24.Qb3 (24.Qa4 Ng5 25.Rb2 Qf4 26.Ng5 Qg5 27.Bb4 Bh3+–) 24...Be6 (24...Na2 25.Bd6 Nc1 26.Qb4 Bd6 27.Qd6+–) 25.d5! Bd5 (25...Nd5 26.Bd6 Pinning (26.Bd6 Deflection); 25...Bd5 26.Bb4 Decoy) 26.Bb4 Bc4 (26...Qb4 27.Bd5 Qb3 28.Bb3+–) 27.Rc4 (27.Bd6?! Bb3 28.Nb3 Bd6+=) 27...Qe6 28.Be7 Qe7 29.Rac2 (29.Ra1 Rfe8+–) 29...Qe2 (29...Rad8+–) 30.Re4 (30.Re4 Qd1 31.Re1 Qe1 32.Ne1+–) 1–0. Nikolic,Jovane (1695) – Von,Erlea Simon Pablo, Championship da Primeira Categoria do E, 2012.

4.c4 c6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.c4 Be7).

4.Bd4 a6 5.e4 c5 6.bc6 Nc6 7.Bb2 0–0 8.e5 Nd5 9.c4 Nc7 10.Qg4 f5 11.Qg3 Nb4 12.Na3 b5 13.Nf3 Bb7 14.Be2 bc4 15.Bc4 Nbd5 16.0–0 Nb6 17.Rfc1 Nc4 18.Nc4= Bd5 19.Bd4 Nb5 20.Bb6 Qe8 21.Rab1?? Qh5 22.Be3? g5?? 23.Bg5 Bg5–+ 24.Qg5 Qg5 25.Ng5 Kg7?? 26.d3 h6 27.Nh3 Kh7 28.Nf4 Bc6 29.Nb6 Rae8? 30.f3 Rg8 31.Nh5 Kg6 32.Nf6 Nd4 33.Rc4 Ne2 34.Kf2 Nf4 35.Rf4 Ref8 36.Ng8 Rg8 37.Rfb4 a5 38.R4b2 a4 39.Nc4 h5 40.Nd6 h4 41.Ke3 Kh5 42.a3 Rg7 43.Ne8 Rg8 44.Nf6 Kg6 45.Ng8 1–0. NN – COMP, 2003.

4.e3 Kf8 5.Nf3 +=. usingprogram (2035) – breberka37 (1715), kurnik, 2011.

4.Nf3 b6 5.e3 Bb7 6.Be2 0–0 7.0–0 c5 8.c4 d5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

4.Nf3 c5 5.c4 0–0 6.Nc3 d5 7.cd5 ed5 8.e3 Bg4 9.Be2?! d4! 10.ed4? cd4 11.Na4 d3 12.Bf1 Re8 13.Qb3 Bb4 –+ 14.Ne5 Nbd7 15.f4 Ne5 16.fe5 Ne4 17.Bd3 Qh4 18.g3 Bd2 19.Kf1 Qh3 20.Kg1 Be3# 0–1. Kappler – Hennig, corr 1971.

4.Nf3 d6 5.c4 0–0 6.e3 a6 7.a4 e5 8.Be2 e4 9.Nd4 d5 10.0–0 dc4 11.Bc4 ab5 12.ab5 Ra1 13.Ba1 Nbd7 14.Nf5 Bc5 15.d4 (15.d4 Ba7 16.Be2=). pumpkin (2305) – whaigh (2100), net–chess.com, 2006.

4.f4 d6 5.e3 c5 6.Nf3= Bd7 7.Be2 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 0–0 11.0–0 Qb6 12.c4 Ne8 13.d4 Bf6 14.Na3 cd4 15.ed4 Nc7 16.Kh1 Be7 17.Bb2 Na8 18.Qc2 f5 19.Qc3 Bf6 20.Nc2 Rc8 21.Qb4 Bb5 22.c5 dc5 23.Qb5 Qb5 24.Bb5 Nc7 25.Na3 Nb5 26.Nb5 Nc6 27.h3 Rd8+= 28.g4 fg4 29.hg4 g6 30.Re1 Nd4 31.Nbd4 cd4 32.Re6 Kf7 33.Rb6+– Rd7 34.Ne5 Be5 35.fe5 Rd5 36.e6 Ke8 37.Rb7 d3?? 38.Bf6 Rd8 39.Re7 Kf8 40.Rh7 (40.Rh7 d2 41.Rh8#) 1–0. Jacewicz,Grzegorz (2000) – Schulz,Peter (1840), remoteschach.de, 2010.

4.g3 c6 5.a4 0–0 6.Bg2 d5 7.d3 Qa5 8.Nd2 cb5 9.ab5 Qb5 10.Rb1 Qc5 11.Ngf3 Bd7 12.Bf6 Bf6 13.Rb7 Qc8 14.Qb1 Bc6 15.Rb3 Nd7 16.0–0 Ba4 17.Ra3 Bc6 18.c4 dc4 19.Nc4 Bd5 20.Nfd2 Bg2 21.Kg2 Qc7 22.Ne4 Be7 23.Ra4 Nf6 24.Nf6=+ Bf6 25.Qa2 Rfc8 26.Rb1 Qc6 27.Kg1 Bd4 28.e3 Bf6 29.d4 Be7 30.Ne5 Qc7 31.Ra1 f6?? 32.Rc4 Qb7 33.Rc8 Qc8+= 34.Nd3 Kf7 35.Qb3 Qc7 36.Ra6 Qd7? 37.Nf4+– Bd6 38.Nd5?? Kf8?? 39.Nc3 Ke7 40.Nb5?? Bb8?? 41.Qc4 h6 42.e4 g5 43.d5 ed5 44.Qc5 Kf7 45.Nd6 Bd6 46.Qd5 Ke7 47.Qa8 Qb5?? 48.Ra7 Ke6 49.Qc8 Ke5 50.Qf5 Kd4 51.Qb5 (51.Qb5 Bc5 52.Ra4 Ke5 53.Qc5 Ke6 54.Qc7 g4 55.Ra6) 1–0. Jokmin,Alex – Vontina,Maria, RN–2010–0–00297, 2010.

4.a4 0–0

5.Nc3 c6 6.e4= cb5 7.ab5 d6 8.Nf3 Nbd7 9.Be2 Nc5 10.d3 b6 11.0–0+= Bb7 12.h3 Qc7= 13.Nd2 Rac8 14.Ra7+= Qb8 15.Ra1 Rc7 16.f3 Qc8 17.d4 Ncd7 18.Bd3 Rc3=+ 19.Bc3 Qc3 20.Nb3 Ra8 21.Ra8 Ba8 22.Qa1 Qa1?? 23.Ra1+– g6 24.Ra8 Kg7 25.Ra7 e5 26.de5 de5 27.g4 g5 28.Kf1 Bf8 29.Nd2 Nc5 30.Bc4 (30.Bc4 Ncd7 31.f4 ef4 32.Nf3+–) 1–0. mic (2110) – rgiarrocco (2285), net–chess.com, 2008.

5.c4 d5 6.e3 dc4 7.Bc4 c6 8.Nf3 cb5 9.ab5 b6 10.0–0 Bb7 11.Be2 Nbd7 12.Nc3 Nc5 13.d4+= Nce4 14.Ne4 Be4 15.Nd2 Bd5 16.Bf3 Bf3 17.Nf3 Qd5 18.Qa4 Rac8 19.Qa7+= Rc2 20.Qe7 Rb2 21.Ra7 Rb5 22.Ne5+/– Ra5 23.Nf7?? Ra7–+ 24.Qa7 Qc6?? 25.Ne5+/– Qd6 26.Qa2 Rb8 27.Rb1 Nd5 28.g3?? Nc3–/+ 29.Qb2 Nb1 30.Qb1 b5 31.Qe4 b4 32.Qf4 Qf8 33.Qe4 b3 34.Nd7? b2 35.Qe6?? (35.Qe6 Qf7 36.Nf6 gf6 37.Qg4 Qg6 38.Qe6 Kh8 39.h3–+; better is 35.Qb1 Qf5 36.e4 Qe4 37.Qe4 b1Q 38.Qb1 Rb1 39.Kg2–/+). OutOfBounce – goshawk101, Live Game Caissa's Web, 2005.

5.e3 a6 6.c4 ab5 7.ab5 Ra1 8.Ba1 c6 9.Nf3 Qa5 10.Nc3 d5 11.cd5 ed5 12.bc6 bc6 13.Bd3 Ba6 14.Ba6 Qa6 15.Ne2 Nbd7 16.0–0 Ra8 17.h3 h6 18.Ned4 c5=+ 19.Nf5 Bf8 20.Qc2 g6 21.N5h4 Kg7 22.Ne5? Ne5?? 23.Be5= Qe6 24.Nf3 Kh7 25.Rc1 Ne4 26.Ba1 Ra5 27.Qb2+= d4 28.ed4 Bg7 29.d3 Ng5 30.Re1?? Nf3 31.gf3 Qe1 32.Kg2 Ra1 33.Qe2 Qh1 34.Kg3 Rg1 35.Kf4 Qh2 36.Ke4 Bd4 37.Kd5 Qh3 38.Qe7 Qe6 39.Qe6 fe6 (39...fe6 40.Kd6 h5–+) 0–1. FRAYBENTOS (2020) – Eralos (2055), ajedrez.educared.net, 2006.

5.e3 a6 6.d4 ab5 7.ab5 Ra1 8.Ba1 d6 9.c4 Nbd7 10.Bd3 c6 11.bc6 bc6 12.Nf3 Qa5 13.Bc3 Qc7 14.0–0 Ba6 15.Qd2 Rb8 16.Ba5 Qa7 17.Bc3 c5 18.d5 ed5 19.cd5 Nd5 20.Ba6 Nc3=+ 21.Nc3 Qa6 22.Nd5 Bf8 23.Nc7 Qa5?? 24.Qa5+– (24.Qa5 Nf6 25.Qa7+–) 1–0. femmenikita (1960) – Eralos (2100), ajedrez21.com, 2005.

5.e3 c6 6.Na3 d5 7.Nf3 c5 8.c4 Nbd7 9.cd5 ed5 10.Be2 a6 11.0–0 a5 12.d4 b6 13.Nb1 c4 14.Nc3 Bb7 15.Qc2 Rc8 16.Rfe1 Ne4 17.Nd2 f5 18.f3 Nc3 19.Bc3 Bd6 20.g3 Qe7 21.Bf1 h5 22.Bg2 h4 23.e4 de4 24.fe4 fe4 25.Ne4 Be4 26.Re4+/– Qg5 27.Rh4 Qe3 28.Kh1 Rf2?? 29.Re4 Rc2 30.Re3 Nf6 31.h3 Bb4 32.Bb4 ab4 33.a5 ba5 34.Ra5 Rb8 35.d5? b3–+ 36.Be4 Ne4 37.Re4 b2 38.Re1 Rc1 39.Rg1 b1Q 40.Rc1 Qc1 41.Kg2 Qd2 42.Kf3 Qa5 (42...Qa5 43.Kg4 Qe1 44.h4 Qe2 45.Kf5 Rf8 46.Kg5 Qe5 47.Kg6 Rf6; 42...Rf8 43.Kg4 Qe2 44.Kg5 Qe7 45.Kg4 Qe4 46.Kg5 Rf5 47.Kg6 Rd5) 0–1. poganinbezdom (1625) – aleksic (1685), kurnik, 2011.

5.e3 d5 6.h4 h6 7.h5 c6 8.f3 a6 9.Nc3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Nb5 Nc6 13.g4 e5 14.Ne2 Re8 15.Ng3 d4–/+ 16.Bc4 de3 17.de3 Be6 18.Bd3? Qb6–+ 19.Ke2 Nb4 20.Na3 Nd3 21.cd3 Bc5 22.Be5 Be3?? 23.Nf5?? Bf5–+ 24.gf5 Bd4 25.Qb1 Re5 26.Kd2 Qa5 27.Kc2 Qa3 28.Rc1 Qc3 29.Kd1 Re1 0–1. xtom (1655) – mintaraga (1655), kurnik, 2011.

5.Nf3 =+.

5.h4 b6 6.e3 Bb7 7.Nf3 c5 8.Be2 d5 9.Ra3 Nbd7 10.g4 Bd6 11.h5 c4 12.g5 Ba3 13.Na3 Ne8 14.Qa1 f6 15.h6 g6 16.d3 cd3 17.cd3 Rc8 18.gf6 Nef6 19.Ne5 Ne5 20.Be5 d4 21.Rg1 de3 22.fe3 Qe7 23.a5? Bd5 24.Nc4 Bc4 25.dc4 Qb4?? 26.Kf1?? Ng4 27.Bf4 Ne3 28.Kf2 Nf5 29.Bg4 Qc5 30.Kf3 Nd4 31.Kg2 Rf4 32.Be6 Kf8 33.Bd5 Qe7 34.Qc3 Qg5 35.Qg3 Rg4 36.Rf1 Ke7 37.Rf7 Ke8 38.Bc6 Kf7 39.Bd5 Ke7 (39...Ke7 40.Qg4 Qg4 41.Kf2 Rf8 42.Ke3 Qe2 43.Kd4 Qd2 44.Ke4 Rf4 45.Ke5 Qd4) 0–1. xtom – vmi030 (1610), kurnik, 2011.

5.h4 d5 6.h5 c5 7.Ra3 c4 8.h6 Ba3 9.Na3 g6 10.Qa1 Nbd7 11.Nf3 Qe7 12.Ne5 Ne5 13.Be5=+ Nd7 14.Bd6 Qf6 15.Qf6 Nf6 16.Bf8 Kf8 17.e3 Bd7 18.Be2 Rc8 19.g4 c3 20.d4 Ne4 21.Bd3 Nd6 22.f4 f6 23.Ke2 Kf7 24.Rb1 e5 25.de5 Bg4 26.Kf2 fe5 27.fe5 Nf5 28.e4 Ne7 29.ed5 Nd5 30.Bc4 Be6 31.Rd1 Rd8 32.Nb1+/– Ke7 33.Bd5 Rd5 34.Rd5 Bd5 35.Nc3 Ke6= 36.a5 Ke5 37.b6 ab6 38.ab6 Bc6 39.Ke3 g5 40.Ne2 Be4 41.c4 g4 42.Ng3 Bc6 43.Kd3 Kf4 44.Nh5?? Kg5 45.Ng7? Kh6 46.Nf5–/+ Kg5 47.Ne7 Bh1 48.c5 g3 49.Ke2 Be4?? 50.c6+= Kf6?? 51.c7+– Ke7 52.c8Q Bc6 53.Qg4 g2 54.Kf2 Kd6 55.Qc8 Kc5 56.Qc7 Kb5 57.Qe5 Ka6 58.Qc5 h5 59.Ke2 h4 (59...h4 60.Kd2 Bb5+–). xtom (1665) – bialanoga (1765), kurnik, 2011.

5.h4 h5 6.Nf3 Ng4 7.Ra3? Ba3–+ 8.Na3 c6 9.Qa1 f6 10.Nh2 Nh2 11.Rh2 d5 12.e3 Bd7 13.Be2 a6 14.b6 Qb6 15.Bh5 e5 16.Bg6 Be6 17.h5 Nd7 18.Bc3 Bf7 19.Qd1? d4–+ 20.Nc4?? Bc4 21.Ba1 Nc5 22.h6 d3 23.c3 Bf7 24.hg7 Bg6 25.gf8Q Rf8 26.f4 ef4 27.Qg4 Kg7 28.Qf4 Qb1 29.Kf2 Rh8 30.Qc7 (30.Qc7 Kg8 31.Rh8 Kh8 32.Qd8 Kg7 33.Qe7 Bf7 34.Qc5–+). xtom (1610) – tobi45 (1745), kurnik, 2011.

4.a4 d5

5.Na3 0–0 6.e3 c5 7.Nf3 Qa5 8.c4 Nbd7 9.Be2 Nb6?? 10.cd5?? Nfd5 11.Nc4 Nc4 12.Bc4 Qb4 13.Qb3 b6 14.Qb4 cb4 15.Bd5 ed5 16.Nd4 Be6 17.0–0 Bc5 18.Nc6 Bd7 19.d4 Bc6 20.dc5 Bd7 21.c6+– Be6 22.Bd4 a6 23.ba6 Ra6+/– 24.Rfb1 Rc8 25.Rb4 Rc6 26.Rab1 Bf5 27.Re1 h6 28.h3 Bc2 29.Rc1 Ra4?? 30.Ra4?? Ba4= 31.Rc6 Bc6 32.Bb6 Kf8 33.Kf1 Ke7 34.Ke2 Ke6 35.Kd3 Ke5 36.f4 Kf5 37.g4 Ke6 38.Kd4 Ba4 39.e4 de4 40.Ke4 Bc2 41.Ke3 g6 42.Bd4 Kd5 43.Bg7 h5 44.gh5 gh5 45.Kf3 Bf5 46.Kg3 Ke4 47.Bh6 Bg6 48.Kh4 Ke3?? 49.Kg5 Kf3= 50.h4 Kg3 51.Bg7 Kf3 52.Bf6 Kg3 53.Be5 Kf3 54.Bc7 Kg3?? 55.Bd8 Kf3= 56.f5 Bf5?? 57.Kf5+– Kg3 58.Kg5 Kf3 59.Kh5 Kf4 60.Kh6 Kf5 61.Kg7 Kg4 62.Kh6 Kf5 63.h5 Kg4 64.Bg5 Kf5 65.Bc1 Kg4 66.Bg5 Kf5 67.Bd8 Kg4 68.Kg7 Kh5= 69.Kf7 ½–½. poganinbezdom (1660) – elsh1403, kurnik, 2011.

5.e3 b6 6.Nf3 Bb7 7.Nc3 0–0 8.Bd3 Nbd7 9.0–0 h6 10.h3 Rc8 11.Nd4 Ne5 12.f4 Nd3 13.cd3 c5 14.bc6 Bc6 15.Nc6 Rc6 16.Nb5 Qd7 17.Rc1 Rfc8 18.Rc6 Rc6 19.Qb3 a6 20.Nd4 Rc8 21.Qb6 Bd6? 22.Qa6+– Bc5 23.Rc1 Rb8 24.Bc3 Bb4?? 25.Nb5 Be7 26.Bd4 Bd8 27.Be5 Rb7 28.Qd6 Qe8?! 29.Nc7 Bc7+/– 30.Rc7 Rc7 31.Qc7 Qa4 32.Bf6 Qd1 33.Kh2 gf6 34.Qd8 Kg7 35.Qa5 Qe2 36.Qc3 Kg6 37.Qb4 h5 38.Qc3 h4= 39.Qb4 Qd3 40.Qc3 Qc3= 41.dc3 Kf5 42.g3 hg3 43.Kg3+/– Ke4?? 44.Kf2 Kd3?? 45.h4 Ke4 46.Kg3 Kf5 47.Kf3 e5 48.fe5 fe5= 49.e4 de4 50.Ke3 f6 (50...f6 51.h5 Ke6+–). j1a9n55 – greatdaras, kurnik, 2011.

5.h4 c5 6.Nf3 b6 7.Ra3 Bb7 8.h5 Nbd7 9.h6 g6 10.e3 c4 11.Ne5? Qc7 12.Nd7=+ Qd7 13.Rh3 Rg8 14.d3 Rc8 15.dc4 dc4 16.Qd7 Nd7 17.Rc3 Bf6 18.Na3 Bc3 19.Bc3 f6 20.Nc4 Ke7 21.Bb4 Nc5 22.a5 Bd5 23.ab6 Bc4 24.Bc4 ab6 25.e4 e5?? 26.Ra3?? Rgd8= 27.Ra7 Rd7 28.Ra6 Rd6 29.Bd5 Kd7 30.Bc6 Ke6? 31.Bd5 Rd5?? 32.ed5+– Kd5 33.Rb6 Kc4? 34.c3 Ne4?? 35.f3 Nc3? 36.Bc3 Kc3 37.Rf6 Kd3 38.Rf7 Ke3 39.Kd1 Kf2? 40.Rh7 Kg2 41.Rg7 Kf3 42.h7 Rh8 43.b6 e4 44.b7 e3 45.b8Q Rb8= 46.Rg8?? e2–+ 47.Ke1 Rb1 48.Kd2 (48.Kd2 e1Q 49.Kd3 Qe4 50.Kc3 Qb4 51.Kd3 Rd1 52.Kc2 Rd2 53.Kc1 Qb2). xtom – piolini (1645), kurnik, 2011.

4.Nc3 0–0

5.e4 b6 6.e5 Ne8 7.Qf3 c6 8.Bd3 Bb7 9.Nge2 d6 10.Nd4 Qd7 11.Qh3 g6 12.Nf3 de5 13.Ne5+= Qd6 14.Ne4 Qd8?? 15.Ng6!+– fg6 16.Qe6 Rf7 17.Bc4 Nd6 18.Nd6 Qf8 19.Nf7 Qf7 20.Qf7 1–0. gtate (1930) – guerino (2155), net–chess.com, 2006.

5.e4 d5 6.e5 Nfd7 7.d4 c5 8.bc6 bc6 9.Nf3 c5 10.Be2 Nc6 11.0–0 Qb6 12.Rb1 Qa5 13.Re1 Rb8–/+ 14.Ba1 Rb1 15.Nb1 Qa2 16.Nc3 Qa5 17.dc5 Bc5 18.Nd2 Nde5 19.Nb3 Qb4 20.Nc5 Qc5 21.h3 Ng6 22.Bf3 Nd4 23.Na4? Nf3 24.Qf3 Qc2 25.Nc3 Bd7 0–1. mic (2195) – michelleke (2280), net–chess.com, 2008.

5.e4 d6 6.Bc4 b6 7.d4 Nbd7 8.Nf3 e5 9.de5 Ne5 10.Ne5 de5 11.0–0 Bb7 12.Re1 Bb4 13.Bd3 Qe7 14.Re2 Rad8 15.Qf1 c6 16.bc6 Bc6 17.f3?? Rd7 18.Kh1–/+ Rfd8 19.Bc4? b5?? 20.Nb5 Bb5?? 21.Bb5+= Rd2 22.Rd2 Rd2 23.Ba4 Qc5 24.Rd1 Qc2?? 25.Bc2+– (25.Bc2 Rc2 26.Rd8 Bf8 27.Ba3+–) 1–0. Jokmin,Alex – Vontina,Maria, SN–2009–0–00200, 2009.

5.e4 d6 6.Bc4 c5 7.Bd3 Qc7 8.Nf3 Bd7 9.0–0 b6 (9...d5!? 10.e5 Ng4+=) 10.Qe2+= h6 (10...e5!?+=) 11.e5+/– de5 12.Ne4 Rd8? (better is 12...Nd5 13.Be5 Qd8+/–) 13.Be5 Qc8? (13...Qb7 14.Nf6 gf6+–) 14.Nf6 Bf6 15.Qe4 Nc6 (15...Be5 16.Ne5 Bb5 17.Qh7 Kf8 18.Bb5 a6+–) 16.Qh7 Kf8 17.Bd6 Be7 (17...Ke8 18.Qg8#) 18.Qh8# 1–0. Trokenheim,Marek (1765) – Vontina,Maria, OP–2012–0–02150, 2012.

5.Nf3 a6 6.a4 ab5 7.ab5 Ra1 8.Qa1 c6 9.Qa7 d5? 10.Qb8 +–. Rooijen Van,Peter (1655) – Vontina,Maria, OP–2009–0–01035, 2009.

5.Nf3 a6 6.a4 c6 7.e3 d5 8.Be2 Bd7 9.0–0 Qe8 10.Ne5 ab5 11.ab5 Ra1 12.Qa1 Bc8 13.f4+/– c5 14.Nf3 b6 15.Ne5 Nbd7 16.Nc6 Bd6 17.Qa7 d4 18.ed4 cd4+/– 19.Na4 e5 20.fe5 Be5 21.Bc4 Ng4 22.h3 Nh2?? 23.Re1 g6 24.Nb6 Bb8 25.Re8 Ba7 1–0. Garfield85 (1715) – kostovist (1610), internet, 2006.

4.c4 0–0

5.a4 a6 6.Nc3 ab5 7.ab5 Ra1 8.Qa1 b6?? 9.Nf3?? d5= 10.e3 dc4 11.Bc4 Nbd7 12.0–0 Nc5 13.d4 Nb7 14.Qa7 Na5 15.Bd3 Bb7 16.Ne5 Qd6 17.Ra1 Ra8 18.Ra5 Ra7 19.Ra7 Bd5 20.Ba3 Qd8?? 21.Nd5 Nd5? 22.Nc6 Qe8 23.Be7 Ne7 24.Ne7 Kf8 25.Rc7 g6 26.Rc8 Ke7 27.Re8 Ke8 28.e4 Kd7 29.f4 Kd6 30.g4 f6 31.h4 e5 32.de5 fe5 33.f5 1–0. ludice (1760) – qrczak1972, kurnik, 2011.

5.a4 a6 6.Nc3 ab5 7.ab5 Ra1 8.Qa1 c6 9.e3 d5 10.Nf3 c5 11.Bd3 d4 12.ed4+= cd4 13.Ne4 Ne4 14.Be4 Bf6 15.Bd4+/– Bd4 16.Qd4 Qd4 17.Nd4 Nd7 18.d3 Nc5+= 19.Ke2 Rd8 20.Ke3 e5?? 21.Nf3+/– g6 22.Ne5+– f5 23.Bd5 Kg7 24.d4 Nd7 25.Nd7 Rd7 26.Ra1 Re7 27.Kd2 Kf6 28.Ra8 Be6 29.Be6 Ke6 30.Rd8 Rc7 31.Kd3 Kf6 32.f4 Kg7 33.c5 Kh6 34.Kc4 Kh5 35.d5 Kg4 36.b6 (36.b6 Re7 37.c6 Kf4 38.Kd3 bc6 39.dc6 Re3 40.Kd2+–) 1–0. ludice (1785) – slabygracz85, kurnik, 2011.

5.Nc3 Bc5 6.d4 Bb4 7.Nf3 Bc3 8.Bc3 Ne4 9.Qc2 d5 10.c5 Nd7 11.e3 Ndf6 12.Nd2 a6 13.a4 ab5 14.ab5 Ra1 15.Ba1 b6 16.c6 Qe7 17.Bd3 Qb4 18.Ke2 Nd2 19.Qd2 Qd2 20.Kd2 Ng4 21.Ke2 g6 22.h3 Nf6 23.Bc3 Nh5 24.g4 Nf6 25.f4 Re8 26.g5 Nh5 27.Kf2 f6 28.gf6 Nf6 29.Kf3 Nh5 30.e4 Rf8+= 31.Bd2 de4 32.Be4 Rd8? 33.Be3 Kg7 34.Rd1 Rf8 35.d5 g5 36.Bd4 Kg8 37.Be5 Nf4= 38.Bf4 Rf4 39.Ke3 Rh4 40.de6 Be6 41.Rd8?? Kf7–+ 42.Bd5 Rh3 43.Ke4 Rh4 44.Ke5 Ke7 45.Ra8?? Bh3 46.Rg8= h6 47.Rg7 Kf8?? 48.Rf7 Ke8 49.Rh7 Bf1 50.Kf6?? Rf4=+ 51.Ke6 Kf8 52.Rh8?? Kg7–+ 53.Rd8 Bb5 0–1. iczker – caissa52, kurnik, 2011.

5.Nc3 c6 6.e3 d5 7.Nf3 dc4 8.Bc4 cb5 9.Nb5 a6 10.Nc3 Nc6 11.0–0 Nd5 12.Nd5= ed5 13.Bb3 Bf6 14.d4 Bg4 15.h3 Bh5 16.a4 Na5 17.Ba2 Nc4=+ 18.Bc4 dc4 19.Qc2 Bf3 20.gf3 b5 21.Rfd1 Qd5 22.e4 Qh5 23.Kg2 Qg6 24.Kf1 Qh5 25.Ke2 Qh3 26.Rh1 Qh1?? 27.Rh1+– h6 28.ab5 ab5 29.Kd2 Rfc8 30.Ke2 Ra2?? 31.Qc3 Rd8 (31...Rd8 32.e5 Be7+–). gtate (1900) – hotchess (1850), net–chess.com, 2004.

5.d4 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 b6 9.Nc3 Bb7 10.Nf3 d5 11.e3 Qd7 12.Qd2 dc4 13.Bc4 Ne4 14.Ne4 Be4 15.Bd3 Bd3 16.Qd3 Bf6 17.0–0 c5 18.bc6 Qc6 19.Ne5 Be5 20.de5 Nd7 21.Bd4 b5 22.h4 Qc4 23.Qe4 b4 24.h5 h6 25.g4 Qd5 26.Qf4 b3 27.g5 hg5 28.Qg5 Kh7 29.f4 f6 30.ef6 Qg5 31.fg5 gf6 32.g6 Kg7 33.Rd1 Rb8 34.Bb2 Rb7 35.Kf2 Nc5 36.Kf3 Na4 37.Ba1 b2 38.Bb2 Nb2 39.Rb1 Rb4 40.e4 Nd3 41.Rd1? Ne5 42.Kf4 Rb7 43.h6? Kh6 44.Rh1 Kg6 45.Rg1 Kf7 46.Ke3 Rb3 47.Ke2 Nc6 48.Rc1 e5 49.Rc6–/+ Rg3 50.Rc7 Kg6 51.Rc8 Kg5 52.Rg8 Kf4 53.Rf8 Ke4 54.Rf6 Rg2 55.Kf1 Rh2 56.Kg1 (56.Kg1 Rc2 57.Ra6–+). iczker – atombrno (1605), kurnik, 2011.

5.d4 c6 6.a4 cb5 7.ab5= d5 8.c5 b6 9.c6+= Bb4 10.Bc3+/– Qe7 11.f3 Bc3 12.Nc3 a6 13.e3+/– Qb4 14.Qc2+– a5 15.Rb1 Qd6 16.Na4 Nbd7 17.cd7 Bd7 18.Bd3 Rfb8 19.Ne2 Rc8 20.Qb3 Rc7 21.0–0 Rac8 22.Nec3 e5 23.Rfe1 e4 24.fe4 de4 25.Ne4 Ne4 26.Be4 Be6 27.d5 Bd7 28.Qd3 g6 29.Rb3 Rc2?? 30.Qf1 Ra2?? 31.Nc3 Ra3 32.Ra3+– Qa3 33.Nb1 Qa4 34.Bd3 Rc5 35.h3 Rd5?? 36.Nc3 (36.Nc3 Qb3 37.Nd5 Qd5 38.Bc4+–) 1–0. Baer,Cy (1895) – Hess,Volker (1735), RSS4D easy–40, 2007.

5.d4 Ne4 6.c5 c6 7.a4 Qa5 8.Nd2 cb5 9.ab5=+ Qb5 10.Rb1 Nd2 11.Qd2=+ d6 12.e4 Qc6 13.f3? dc5–+ 14.Rc1 Rd8 15.Bd3 Qd7 16.Ne2 cd4 17.e5?! Nc6 18.0–0 Ne5 19.Be4 f5 20.Bb1 Nc6 21.Rfd1 b6 22.Kh1 Bc5 23.Bd3 Ne5 24.Bb1 Nc6 25.Nf4?? a5–+ 26.Ba2 Qd6 27.Re1 Re8 28.Nd3 Nb4 29.Nb4 Bb4 30.Qd3 Be1 31.Re1 Qb4 32.Rb1 Ba6 33.Qd4 Qd4 34.Bd4 b5 35.Re1 Kf7 36.Kg1 a4 37.Bc5 Rad8 38.h3 Rd2 (38...Rd2 39.Bb1 Red8–+) 0–1. Baer,Cy (1895) – Grimm,Wolfgang (2030), RSS7E easy–56, 2007.

5.e3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 d5 9.Nf3 c5 10.Be2 b6 11.0–0 Bb7 12.d4 Nbd7 13.Nbd2 cd4 14.Nd4 dc4 15.Bc4 Nc5 16.N2b3 Nb3 17.Qb3 Qa8 18.f3 h5 19.Be6 Nd5 20.Bf5+/– g6 21.Be4 Nf6 22.Bd3 Bd5 23.Bc4 Bc4 24.Qc4 Bc5 25.Kh1 Rc8 26.e4 Bf8? 27.Nc6 Bg7 28.Ne7 Kh7 29.Nc8 Kg8 30.Nb6 Qb7 31.Nd5 Nd5 32.Bg7 Ne3 33.Qc6 Qe7 34.Bf6 Qb4 35.Qc8 (35.Qc8 Qf8 36.Rc1 Nc2 37.Rc2 Kh7 38.Qf8 h4 39.Qg7; 35.Qa8 Qf8 36.Ra1 Kh7 37.Qf8 Ng2 38.Qg7) 1–0. carocan (1770) – abelha1313 (1730), kurnik, 2011.

5.e3 a6 6.Nf3 ab5 7.cb5 d6 8.a4 Bd7 9.Be2= c6 10.Nc3 cb5 11.ab5 Ra1 12.Ba1 Qb6 13.0–0 Rc8 14.g3 Be8 15.d4 Nbd7 16.d5 Nd5 17.Nd5+= ed5 18.Qd5 Nf6 19.Qf5 Bd7= 20.Qf4 Bb5 21.Bb5 Qb5= 22.Nd4 Qe5 23.Qf3 Qe4 24.Qe2 d5 25.Qb5 Rc7 26.Qb6 Bd8 27.Qa7 h6 28.Qb8= Qe7? 29.Nf5+/– Qd7 30.Bf6 gf6 31.Nh6 Kg7 32.Ng4 Qg4 33.Qd8 Qd7 34.Qa8 b5 35.Qa1 Rc4 36.Rd1 b4 37.Qb2 Qd6 38.Rc1 Rc1=+ 39.Qc1 d4?? 40.ed4 Qd4–/+ 41.h4?? b3–+ 42.Qb1 b2 43.Kg2 Qc3 44.Kh3 Qc1 45.Qe4 b1Q 46.Qg4 Qg6 47.Qg6–+ fg6 48.f4 Kh6 49.Kg4 Qd1 50.Kh3 Qh5 51.Kg2 Qg4 52.Kf2–+ g5 53.fg5 fg5 54.hg5 Kg5 55.Kg2 Kf5 (55...Kf5 56.Kf1 Qd1 57.Kf2 Ke4 58.g4 Qf3 59.Kg1 Qg3 60.Kf1 Ke3 61.g5 Qf2#; 55...Qe2 56.Kh3 Qf2 57.g4 Kf4 58.g5 Qg3#) 0–1. fernandobh (1955) – Eralos (2055), ajedrez21.com, 2004.

5.e3 b6 6.Nf3 c5 7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0).

5.e3 c5 6.Nf3= b6 7.Be2 Bb7 8.0–0 d6 9.d4 Nbd7 10.a4 Re8 11.Nbd2 Qc7 12.Rc1 a6 13.Qb3 ab5 14.ab5 Ra7 15.Ra1 Rea8 16.Ra7 Ra7 17.Ra1 Qb8 18.Ra7 Qa7 19.Qa3 Qa3 20.Ba3 Ne4 21.Ne4 Be4 22.Kf1 Kf8 23.Ke1 Bf6 24.Bb2 Ke8 25.Kd2 Kd8 26.Bc3 Kc7 27.g4 h6 28.dc5 Bc3 29.Kc3 dc5 30.h4 f6 31.Nd2+= Bg6 32.f4 Bf7 33.g5 hg5= 34.fg5 Bg6 35.h5+= Bh7 36.Bg4 Kd6 37.g6 Bg8 38.Nf3 Ne5 39.Ne5 Ke5 40.Kd3 f5=+ 41.Bf3 Kf6 42.e4 f4–+ 43.e5 Ke5 44.Bc6 Kf5 45.Be8? Kf6 46.Ke4 e5 47.Bf7 Bf7 48.gf7 Kf7 49.Ke5 f3 50.Kd6 f2 51.Kc6 f1Q 52.Kb6 Qf5 53.Kc7 Qe5 54.Kc6 Ke7 55.b6 Qd6 56.Kb7 Kd8 57.Ka7 Kd7 58.b7 Qc7 59.Ka8 Qa5 60.Kb8 Kc6 61.h6 gh6 62.Kc8 Qa6 63.Kd8 Qb7 (63...Qb7 64.Ke8 Qg7 65.Kd8 Qd7#) 0–1. Istvanny (1615) – Kuhnpb (1710), internet, 2007.

5.e3 c5 6.Nf3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0).

5.e3 c6 6.a4 a6 7.Nc3 Bb4 (7...b6 8.Nf3=+) 8.Nf3= b6 (8...d5 9.Qc2=) 9.Qb3 a5 (9...c5 10.Be2=) 10.Be2 Bb7 11.0–0 d5 12.cd5 cd5 13.Ba3 Bd6 (13...Ba3 14.Qa3 Nbd7 15.d4+=) 14.Bd6 (14.d4 Qe7+=) 14...Qd6 15.h3 (15.d4 Nbd7+=) 15...Nbd7 16.d4 Rac8 17.Rfc1 Rc7 18.Na2 Rfc8 19.Rc7 Rc7 20.Rc1 Rc1 21.Nc1 Qc7 22.Qb2 Ne4 23.Na2 f6 24.Bd3 Nd6 25.g4 g6 26.Qb1 Ne4 27.Qd1 Kg7 28.Nc1 Nc3 29.Qc2 Qc8 30.Nd2? Na4!–/+ 31.Ne2 Qc2 32.Bc2 Nb2 33.Nc3 Kf7 34.f3 Ke7 35.Kf2 Kf7 36.e4 h6–/+ 37.Ke3 g5 38.Bb3 Ba8 39.Ndb1 Nc4 40.Bc4+= dc4 41.Na3 Ke7 42.Nc4 Kd8 43.Nd6 Ke7= 44.Nc4 Kd8+/– 45.Na4 Kc7+= 46.f4 gf4 47.Kf4 e5? 48.de5+– fe5 49.Kf5 Nc5 50.Nc3 Nd3 51.h4 Nf2 52.g5 hg5 53.hg5 Kd8 54.Nb6 Bb7 55.Ke5 Nd3 56.Kf6 Nf4 57.g6 Ng6 58.Kg6 Kc7 59.Nca4 Kd6?? (better is 59...Be4 60.Kf6 Bc6 61.bc6 Kc6+/–) 1–0. Koss,D (1755) – Altmann,T (2500), SSM96, 1996.

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

5.e3 d5 6.a4 b6 7.cd5 ed5 8.Bf6 Bf6 9.d4 c5 10.bc6 Nc6 11.Nf3 Re8 12.Be2 Bg4 13.0–0 Bf3 14.Bf3+= Na5 15.Nc3+/– g6 16.Nd5 Bg7 17.Rc1 Rc8 18.Rc8 Qc8 19.Qd2 Qd7 20.Qb4 Bf8?? 21.Qb5 Qb5 22.ab5 Rc8 23.Nf6 Kg7 24.Nd7 Bd6 25.g3 f6 26.e4 Rc7 27.e5 fe5+= 28.Ne5 Rc3 29.Bc6 Be5= 30.de5 Nc6 31.bc6 Rc6 32.Rd1 Rc7 33.f4 b5 34.Rb1 Rb7 35.Kf2 a5 36.Ke3 b4 37.Kd4 a4 38.Kc4 b3 39.g4?? Kf7 40.f5? gf5–+ 41.gf5 h5 42.h4?? Rb8 43.Kc3=+ Rb7 44.Kb2 Ra7 45.Ra1 1–0. ludice (1715) – safan (1795), kurnik, 2011.

5.e3 d5 6.a4 c5 7.Nf3 b6 8.Be2 dc4 9.Bc4 Bb7 10.0–0 Nbd7 11.d4 Rc8 12.Nbd2 cd4 13.Bd4 Nc5 (13...Bf3 14.gf3 (14.Qf3? Bb4–+) 14...Bc5 15.Nb3=+) 14.Be2 Qd5 (14...Qc7 15.Be5 Qd7 16.a5=) 15.Qb1 (15.a5 Nfe4 16.Ne4 Qe4=) 15...Nce4 (15...Qh5 16.a5=) 16.Ne4+= Ne4 17.Qb2 (17.Rd1 Qf5+=) 17...Bf6 (17...f6 18.Rad1 Qf5 19.Nh4=) 18.Bf6 Nf6 19.Qd4 (19.Rfd1 Qf5 20.Qe5 Qg6=) 19...Qd4 (19...Ne4 20.a5=) 20.Nd4 h6 (20...e5 21.Nf5 Rc2 22.Bd3=) 21.Bf3 (21.Rfc1 Rc5+=) 21...Bf3= 22.Nf3 Rc4 (22...Rc5 23.Nd4=) 23.Ne5 (23.Nd4 Re8+=) 23...Rc2 (23...Rc5 24.Nc6=) 24.Nc6 Ra8 (24...Ne4 25.Na7 Ra8 26.Nc6=) 25.Rfc1 Rd2 (25...Rb2 26.Rcb1 Rb1 27.Rb1+=) ½–½. hal1958 – Tapiwa, playchess.de, 2003.

5.e3 d5 6.f4 b6 7.Nf3 Bb7 8.d4 Ne4 9.Nbd2 f5 10.Bd3 Nd7 11.0–0 Bd6 12.Be4 fe4 13.Ne5 Ne5 14.de5 Bc5 15.Bd4 Bd4 16.ed4 Qh4 17.g3 Qh6 18.c5 bc5 19.dc5 c6 20.a4 g5 21.Qg4+/– Kh8 22.fg5 Rf1 23.Rf1 Qg7 24.Rf6 Bc8 25.Nb3 cb5 26.ab5 a6 27.b6 a5 28.c6 a4 29.b7 Bb7 30.cb7 Rb8? 31.Nc5 a3 32.Qe6 a2 33.Qc8 Qg8 34.Qg8 Kg8 35.Ra6 e3 36.Ra8 Kg7 37.Ra2 d4 38.Ra8 d3 39.Rb8 d2 40.Rg8! Kf7 41.Rd8 e2+– 42.b8Q e1Q= 43.Kg2 Qe2 44.Kh3 Qh5 45.Kg2 Qe2 46.Kh3 Qh5 47.Kg2 Qe2 ½–½. carocan (1750) – zakapior51 (1745), kurnik, 2011.

5.e3 Re8 6.Nf3 d6 7.d4 e5 8.de5 de5 9.Qd8 Rd8 10.Ne5 Bf5 11.Be2 Bb4 12.Nc3 Re8 13.Nf3 Nbd7 14.0–0 Bc5 15.Nh4 Be6 16.Bf3 Rab8 17.Nd5 Bd6 18.Nf6 Nf6 19.Rac1 Nd7 20.Be2 b6 21.Rfd1 Nf8 22.Nf3 f6 23.Nd4 Bd7 24.Bf3 Rbd8 25.Bc6 Bc5 26.Bd7 Nd7 27.Nc6 Bd6 28.Nd8 Rd8 29.Bd4 Nc5 30.Bc5 bc5 31.g3 f5 32.a4 Kf7 33.Rd5 Ke6 34.Re1 Kf6 35.e4 Re8 36.Rf5 Kg6 37.g4 h6 38.e5 Be7 39.e6 Rd8 40.Rd5 Re8 41.Ree5 Kh7 42.a5 Kg8 43.b6 Bd8 44.ba7 Kf8 45.e7 Be7 46.Re7 Ke7 47.Re5 1–0. Dopper – Bloom, 1992.

5.Nf3 b6 6.e3 c5 7.Be2 Bb7 8.0–0 d6 9.Qc2 Be4 10.d3 Bg6 (10...Bb7 11.Nc3=) 11.Nbd2 (11.Nc3 Nbd7+/–) 11...Nbd7 12.h3 e5? (better is 12...h6!?=) 13.Nh4+– Re8 (13...a6 14.Bf3+–) 14.Ng6 (14.Bf3 Rb8+–) 14...fg6 (14...hg6 15.Bf3+–) 15.a4 (15.Bf3 Rc8+–) 15...Rf8 (15...a6 16.Bf3 Ra7 17.Bc3+–) 16.Nb3 White intends a5 (16.Bf3 a5+–) 16...Nh5 (16...a5 17.Bf3+–) 17.Bf3 (17.a5 a6 18.ab6 Qb6+–) 17...Rb8? (17...Rf3 18.gf3 a5 19.ba6 Ra6 20.Nd2+/–) 18.a5 (18.Bd5 Kh8+–) 18...Bg5? (better is 18...Rf3!? 19.gf3 Bh4+–) 19.Qe2 (19.ab6 ab6 20.Bd5 Kh8+–) 19...Nhf6 20.g3 (20.ab6 ab6 21.Bc6 Qe7+–) 20...h5 (20...Qe8 21.ab6 ab6 22.Ra7+–) 21.h4 Bh6 22.ab6 ab6 23.Ra7 Qe7 24.Rfa1 Qe6 25.Kg2 (25.Bc6 Rf7+–) 25...Kh8 26.Nd2 Rfd8 (26...d5 27.cd5 Nd5 28.Nc4+–) 27.Bc6 Qg4 (27...Kg8 28.Qf3+–) 28.Qg4 hg4 29.Ne4 Nf8 (29...Ne4 30.Be4 (worse is 30.Rd7 Rd7 31.Bd7 Nf6+–) 30...g5 31.hg5 Bg5 32.Rh1 Bh6 33.Bf5+–) 30.Rf7 (better is 30.Nf6 gf6 31.h5 g5+–) 30...Ne4 31.Be4 Re8 32.Ra6 Kg8 (32...Kh7 33.Bc3+–) 33.Bd5 Kh8 34.Bb7 (34.Rc7 Red8+–) 34...Ne6 35.Rb6 Nd8 36.Rd7 e4 (36...Kh7 37.Bc3+–) 37.de4 Nb7 38.Rbb7 Rb7 39.Rb7 Re4 40.Rb6 (better is 40.b6 Rc4 41.Ba3+–) 40...Rc4 41.Rd6?? (41.Rb8 Kh7 42.b6 Be3+–) 41...Rb4? (better is 41...Rc2 42.Be5 Be3 43.Rd8 Kh7+=) 42.Bd4?? (better is 42.Be5!? Rb5 43.Rg6 Kg8 44.Rg4 Rb4+–) 42...Rb5?? (42...cd4 43.Rd4 Rb2 44.Re4+= (worse is 44.Rg4 Be3 45.Rg6 Kh7–+)) 43.Rg6?? (better is 43.Rd5+–) 43...Kh7 (43...cd4!? 44.ed4 Rb2=) 44.Rg4+= c4?? (better is 44...cd4 45.Rd4 Rb2+=) 45.Bc3 Rc5 46.Kf3 (46.Rd4 Rc7 47.f4 g5+–) 46...Rf5 (46...g6 47.Ke2+–) 47.Ke2 Rc5 48.e4 g5 (48...g6+–) 49.hg5 Bg5 50.e5 Kh6 (50...Bh6 51.e6 Rc6 52.Re4+–) 51.Re4 Rc7 (51...Rc8 52.f4 Be7 53.f5+–) 52.f4 Be7 53.g4 Kg6 (53...Kg7 54.e6 Kg8 55.Kf3+–) 54.Kf3 (54.f5 Kf7 55.e6 Kf8+–) 54...Ba3 (54...Ra7 55.f5 Kg5 56.Bd2 Kh4 57.Be3+–) 55.e6 Be7 (55...Rh7 56.Rc4 Bc1 57.f5 Kg5+–) 56.f5 Kg5 57.Bd2 (better is 57.Re1 Rc5 58.Rh1 Rf5 59.gf5 Kf5 60.Re1+–) 57...Kf6 58.Bc3 Kg5 59.Rd4 (better is 59.Re1 Rc5 60.Rh1 Rf5 61.gf5 Kf5+–) 59...Rb7 60.Bd2 Kf6 61.Rc4 Ke5 62.Be3 Rb3 63.Re4 Kf6 64.Ke2 Rb2 (64...Rb8 65.Rc4 Re8 66.Bd4 Kg5 67.Kf3+–) 65.Kd3 Rg2 (65...Rb3 66.Kc4 Rb8 67.Rd4+–) 66.Rc4 (better is 66.Bd4 Kg5 67.f6+–) 66...Rg3 67.Ke2 Rh3 (67...Ke5+–) 68.Rc7 Rh2 (68...Bb4 69.Bd4 Kg5+–) 69.Kf3 Rh3 70.Ke4 Rh4 71.Re7! 1–0. Pfueller,Volker – Gnass,Erhard, 2rd Berlin Germany, Senior Championship, 2010.

5.Nf3 b6 6.g3 Bb7 7.Bg2 h6 8.0–0= c5 9.d4 cd4 10.Bd4 d5 11.Ne5 Qc7 12.Nd2 Nbd7 13.Nd7 Qd7 14.a4 dc4 15.Bb7 Qb7=+ 16.Qc2 Rac8 17.Rfc1 Rfd8 18.Bb2 c3 19.Bc3 Bb4 20.Qb2 Bc5 21.Nb3 Be7 22.Nd4+= Bc5 23.Nc6 Rd7 24.Bf6+/– gf6 25.Qf6 Bf8 26.Rc4 Bg7?? 27.Rg4 Kh7 28.Qg7# 1–0. algernon (2155) – kostaspetidis (2340), net–chess.com, 2003.

5.Nf3 c5 6.e3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0).

5.Nf3 c5 6.e3 d5 7.Be2 b6 8.0–0 Bb7 9.d4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4).

5.Nf3 d5 6.cd5 Nd5 7.e4 Nf6 8.e5 Nd5 9.Bc4 a6 10.0–0 ab5 11.Bb5 c6 12.Bc4 Nd7 13.d4 N7b6 14.Bb3 Nf4 15.Nc3 Nbd5 16.Rc1 Ng6 17.a4 Qb6 18.Rb1 Qd8 19.Rc1 Bg5 20.Ng5 Qg5 21.Ne4 Qh4 22.Qc2 Ngf4 1–0. Bonetti,Shane – guest1464, ICC 3 20 u, 2002.

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

5.Nf3 d6 6.e3 Ne8 7.d4 Nd7 8.Nbd2 b6 9.Bd3 Bb7 10.Qc2 h6 11.g4 a6 12.h4 f6 13.Ke2 c5 14.bc6 Bc6 15.Rag1 Kh8 16.g5 Bf3 17.Nf3 f5 18.gh6 gh6 19.Rg6 Rf6 20.Ng5 Qb8 21.Rf6 Bf6 22.Ne6 Ng7 23.Bf5 Ne6 24.Be6 Nf8 25.d5 Qd8 26.Rg1 Ne6 27.de6 Qf8 28.Rg6 Bb2 29.Qb2 Kh7 30.Rf6 1–0. Zschalich – Neubert, 1985.

5.Nc3 d5

6.d4 dc4 7.e4 c5 8.Nf3 cd4 9.Qd4 Qd4 10.Nd4 e5 11.Nf5 Bf5 12.ef5 Bb4 13.Bc4? Ne4 14.Rc1 Nd7?? 15.0–0 Nd2=+ 16.Nd5 Nf1 17.Nb4 Nd2 18.Bd5 Nb6 19.Bb7 Rad8 20.Nc6 Rd7 21.Ba6 Ndc4 22.g4?? Nb2–+ 23.Rc2 N2c4 24.Nb4 f6 25.Nc6 Rc7 26.h4 Rff7 27.a4 Rfd7 28.Nb4 Rd2 29.Rc3 Rd1 30.Kg2 Ra1 31.Nc2 Ra4 32.Ne3 Ne3 33.fe3 Rc3 34.Kf3 Raa3 35.Ke4 Re3 0–1. iczker – keijozz, kurnik, 2011.

6.e3 a6 7.a4 ab5 8.cb5 c6 9.Rc1 c5 10.d3 Qa5 11.Nf3 Nfd7 12.Be2 Bf6 13.d4 c4 14.0–0 Nb6 15.Qc2 g6 16.Rfd1 Qb4 17.Nd2 Na4 18.Ra1 Qb2 19.Qb2 Nb2 20.Ra8 Nd1 21.Bd1 Nd7 22.Na4 b6 23.Nf3 Kg7 24.Nc3 Be7 25.Ne5 Ne5 26.de5 Bb4 27.Na2 Ba5 28.Kf1 Bd7 29.Rf8 Kf8 30.Ba4 Ke7 31.Ke2 f6 32.f4 f5 33.Kd1 h6 34.Nc1 g5 35.g3 Be8 36.Ne2 Bh5 37.Bc2 Bf3 38.Ba4 gf4 39.gf4 Kf7 40.Bc2 Kg6 41.Ba4 Kh5 42.Bc2 Kh4 43.Bf5 ef5 44.e6 Bb4 45.e7 Be7 46.Kd2 Bb4 47.Nc3 Bc3 48.Kc3 Kh3 49.Kd2 Kh2 50.Kc3 Kg3 51.Kd4 Be4 52.Ke5 c3 0–1. Meybohm – Kuhlmann, 1988.

6.e3 c5 7.d4 cd4 8.Qd4 dc4 9.Qd8 Rd8 10.Bc4 b6 11.Nge2 Nbd7 12.0–0 Ne5 13.Bb3 Bb7 14.a4 Nd3 15.Ba3 Nc5 16.Bc2 Bf8 17.f3 Rd2 18.Nd4 e5 19.Bc1 ed4 20.Bd2 dc3 21.Bc3 Nd5 22.Bd2 Ne6 23.e4 Bc5 24.Kh1 Ne3 25.Be3 Be3 26.Rfd1 Rc8 27.Bb3= Nc5 28.Bc4 g6 29.g3? Kg7 30.a5? Ne4–+ 31.Bd5? Nf2 32.Kg2 Nd1 33.Bb7 Rc2 34.Kf1 Nc3 35.Ra3 ba5 36.Ra5 Bb6 37.Ra3 Nb5 (37...Nb5 38.Ra6 Rh2–+) 0–1. Satka,Martin – Timm,Christian, Brandenburg–ch Seniors, 2004.

6.e3 c6 7.a4 a6 8.Rc1 ab5 9.cb5 Qb6 10.Nf3 Nbd7 11.Qc2 h6 12.Be2 Nc5 13.0–0 cb5 ½–½. Meybohm – Schulze, 1988.

6.e3 Nbd7 7.Nf3 Nb6 8.cd5 ed5 9.Bd3 Re8 10.Qc2 h6 11.a4 Be6 12.Ne2 Bd6 13.0–0 Bg4 14.Ned4 Ne4 15.Ne1 Bd7 16.Be4 de4= 17.f4 Nd5 18.Ne2 Rc8 19.Ng3 Nf6 20.Qb3 Ng4 21.Qc3 Bf8 22.h3 Nf6 23.Nc2 c5 24.Na3 Be6 25.f5 Bd5 26.Rf4? Bd6–+ 27.Rg4? Be5 28.Qc2 Ng4 29.Ne4 Be4 30.Qc1 Qh4 31.hg4 Qh2 32.Kf1 Qg2 (32...Qg2 33.Ke1 Bg3 34.Kd1 Qf3#) 0–1. Anderson,George – Rutter,Blair (1690), Winnipeg Remembrance op, 2003.

4.c4 b6

5.e3 Bb7 6.a4 a5 7.d4 0–0 8.Nf3 d6 9.Be2 Nbd7 10.0–0 Ne4 11.Nbd2 f5 12.Ne4 Be4 13.Nd2 Bb7 14.Bf3 Bf3 15.Qf3 Qe8 16.e4 f4 17.Qg4 Qf7 18.f3 h5 19.Qh3 g5 20.g3 Kh7 21.d5 e5?? 22.Qd7+– fg3 23.hg3 h4 24.Qf5! Qf5 25.ef5 Rf5 26.g4 Rf4 27.Ne4 Raf8 28.Kg2 R4f7 29.Bc1 Rg7 30.Be3 Bd8 31.Rae1 Re8 32.Kh3 Kg8 33.Nc3 Bf6 34.Nd1 Bd8 35.Nf2 Ree7 36.Ne4 Ref7?? 37.Rf2 Kf8 38.Ref1 Kg8 39.Bd2 Kf8 40.Nc3 Kg8 41.Na2 Kf8 42.Nc1 Kg8 43.Nb3 Kf8 44.Ba5! ba5 45.Na5 Bf6 46.Nc6+– Ke8 47.a5 Kd7 48.a6 Rf8 49.a7 Ra8 50.Ra2 Rgg8 51.Ra6 Rgc8 52.Rfa1 Bg7? 53.b6 cb6 54.Rb6 e4 55.Rb7 Rc7 56.Rc7 Kc7 57.Re1 ef3 58.Re7 Kb6 59.Rg7 Rf8 60.Rf7! Rf7 61.a8Q f2 62.Qa5 Kb7 63.Qa7 Kc8 64.Qf7 f1Q 65.Qf1 (65.Qf1 Kc7 66.Qf8 Kb6 67.Qb8 Kc5 68.Qb5) 1–0. ludice (1695) – spilkler (1685), kurnik, 2011.

5.e3 Bb7 6.Nf3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4).

5.e3 Bb7 6.Nf3 0–0 7.Be2 c5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0).

5.e3 Bb7 6.Nf3 0–0 7.Be2 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.c4 Bb7 6.Nf3 Be7 7.Be2 0–0).

5.e3 Bb7 6.Nf3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bb7 6.c4 Be7).

5.Nf3 Bb7 6.e3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4).

4.c4 d5

5.e3 dc4 6.Bc4 Nbd7 7.Qb3 Nb6 8.Be2 0–0 9.Nf3 Bd7 10.a4 Rc8 11.0–0 c5 12.d3 Nbd5 13.Nbd2 b6 14.Nc4 Nb4 15.e4 Ne8 16.Nfe5 f6 17.Nd7 Qd7 18.f4 Bd6 19.g3 Nc7 20.a5 Nb5 21.ab6 a6 22.Ba3 Nd4= 23.Qb2? a5 24.Bb4 ab4 25.Ra7 Qc6 26.Rfa1 g5 27.b7 Rb8 28.R7a6 Qb7 29.Rd6 gf4 30.gf4 e5 31.Rd4 ed4 32.Bf3 Qg7 33.Kh1 Kh8 34.Rg1 Qe7 35.e5 fe5 36.Ne5 Rb6?? 37.Be4 Rf4 38.Nf3 Re4–/+ 39.de4 Qe4 40.Qg2 Rg6 41.Ng5? Qg2 42.Rg2 d3 43.Ne4 c4 44.Rg6 hg6 45.Kg2 c3 46.Kf2 c2 47.Nd2 c1Q 48.Ke3 Qe1 49.Kd3 1–0. carocan (1730) – superos69, kurnik, 2011.

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

5.Nf3 dc4 6.e3 c6 7.Bc4 cb5 8.Bb5 Bd7 9.Be2 Nc6 10.0–0 0–0 11.Nc3 a6 12.d4 Rc8 13.Rc1 Qb6 14.h3? (14.Na4) 14...Qb2 15.Ne5 Qb6 16.Na4 Qd8 17.Nd7 Qd7 (better is 17...Nd7) 18.Nb6 Qd8 19.Nc8 Qc8 20.Ba6 Qa8 21.Bb5 Qa2 (21...Bd6) 22.Bc6 bc6 23.Rc6 Nd5 24.Qd3 Qa7 25.Qb3 Rb8 26.Qc2 Nb4 27.Rc8 Bf8 28.Qc4 Rc8 29.Qc8 Nd5 30.Rb1 g6 31.Rb8 Qe7 32.e4 Nf4? (better is 32...Nf6 33.Rb7 Qa3) 33.Qc5 Qc5 34.dc5 Kg7 35.c6 Bd6 36.Rb7 Ne2 37.Kf1 Nd4 38.c7 Bc7 39.Rc7 Kf6 40.f4 Nb5 41.Rc5 Na7 42.e5 Kg7 43.Ke2 h5 44.Kd3 g5 45.Rc7 Nb5 46.Rb7 Na3 47.fg5 Kg6 48.Rb3 1–0. Wall,Bill – Antigen, playchess.com, 2012.

4.c4 d6

5.d4 c6 6.a4 Bd7 7.e3 a6 8.Nc3 0–0 9.Nf3 ab5 10.cb5 Ng4 11.h3 Nh6 12.Bd3 Bf6 13.0–0 Re8 14.Ne4 Be7 15.Ba3 d5 16.Nc5 Bc8 17.Qc2 g6 18.Ne5 cb5 19.Bb5 Rf8 20.Ncd7?? Nd7–+ 21.Be7 Qe7 22.Qc7 Rd8 23.Rfc1 Ne5?? 24.Qe7+– Rf8 25.de5 Nf5 26.Qf6 Ng7 27.g4 Ne8 28.Qd8 Ng7 29.Qc7 Ne8 30.Qe7 Ng7 31.Rc7 b6 32.Rac1 Ba6 33.Ra7 Bb5 34.Ra8 Ra8 35.ab5 Ne8 36.Qb7 Rd8 37.Rc8 Rc8 38.Qc8 Kf8 39.Qd8 h6 40.f4 g5 41.f5 ef5 42.gf5 h5 43.Kg2 g4 44.hg4 hg4 45.Kg3 d4 46.ed4 f6 47.e6 (47.e6 Kg8 48.Qe8 Kg7 49.e7 Kh7 50.Qf7 Kh6 51.Qg6; 47.ef6 Kf7 48.Qe7 Kg8 49.f7 Kh7 50.fe8Q Kh6 51.Qg6) 1–0. baovn21 – mathiasz, kurnik, 2011.

5.e3 c6 6.a4 0–0 7.Nf3 a6 8.Be2 Bd7 9.0–0 Qc7 10.d4 Rc8 11.Nbd2 cb5 12.ab5 d5 13.c5 Ne4 14.Qc2 Nd2 15.Qd2 f6 16.Rfc1 g5 17.g3 Kf7 18.Bd3 Rh8 19.Qe2 h5 20.ba6 ba6 21.Ba6 Na6 22.Ra6 Ra6 23.Qa6 Bc8 24.Qa8 Qb7 25.Qb7 Bb7 26.Ba3 Bc6 27.Rb1 Ra8 28.Bc1 Bd8 29.Bd2 Bc7 30.h3 Kg7 31.Kg2 Kg6 32.Be1 Bd8 33.Ng1 Bc7 34.Ne2 Ra2 35.Nc3 Ra8 36.Nd1 Rb8 37.Rb8+/– Bb8 38.Ba5 Kf7 39.Bb6 Ke7 40.Kg1 Ke8 41.Nc3 Kd7 42.Na2 Bc7 43.Bc7 Kc7 44.Nb4 Kb7? 45.Kf1 Bb5+/– 46.Ke1 Kc7 47.f4 gf4 48.ef4 f5 49.Kf2 Be8 50.h4 Bf7 51.Ke3 Be8 52.Kd3 Bb5 53.Kc3 Kb7 54.Nd3 Be8 55.Kb4 Ka6 56.Ne1 Kb7 57.Ka5 Ka7 58.Nf3 Kb7 59.Ng5 Bd7 60.Nf7 Kc7 61.Ng5?? Kb7 62.Nh7 Be8 63.Nf6 Bf7 64.Kb5 Kc8 65.Kc6 e5 66.fe5 Kd8 67.Kd6 Kc8 68.e6 Be6 69.Ke6 Kd8 70.Kf5 (70.Kf5 Kc7 71.g4 hg4 72.Ng4+–; 70.Kd6 Kc8 71.c6 f4 72.c7 Kb7 73.Nd5 f3 74.Kd7 Ka7 75.c8Q f2 76.Qc7 Ka6 77.Qb6#) 1–0. Rongen – Maalcke, Dieren, 1995.

5.e3 c6 6.a4 0–0 7.Nf3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 Nbd7).

4.d4 0–0

5.c4 d5 6.Nc3 c6 7.a4 a6 8.Nf3 Nbd7 9.e3 Qb6 10.c5 Qa5 11.Bd3 ab5?? 12.ab5+– Qb4 13.Ra8 Qb2 14.Qc2 Qb4 15.0–0 cb5 16.Bb5 b6 17.Bd7 Bd7 18.Rf8 Bf8 19.Rb1 Qc4 20.cb6 Bb4 21.Rc1 Ba5 22.Ne5 Qb4 23.Nd7 Nd7 24.Ne2 g6?? 25.b7! Qb7 26.Qc8 Qc8 27.Rc8 Kg7 28.f4 Nf6 29.g3 Ne4 30.Nc1 Bd2= 31.Nd3 Be3–/+ 32.Kf1 Bd4 33.Ne5 Be5 34.fe5 Ng5 35.Kf2 Ne4 36.Ke3 h5 37.h4 Kh6 38.Kf4 g5 39.hg5 Ng5 40.Rh8 Kg6?? 41.Rg8+– Kh7 42.Rg5 d4 43.g4 Kh6 44.Rh5 Kg6 45.Rh2 f6 46.ef6 Kf6 47.Rh6 (47.Rh6 Kf7 48.Ke5+–) 1–0. iczker – nayronaxjm, kurnik, 2011.

5.c4 d5 6.c5 c6 7.a4 cb5 8.ab5 a6 9.b6 Nc6 10.Nf3 Ne4 11.e3 Re8 12.Nc3 Nc3 13.Bc3 Bg5 14.Bd3 g6 15.h4 Bh6 16.h5 Bg7 17.h6 Bf6 18.Ne5 Be5 19.de5 Qg5 20.Qf3 Ne5=+ 21.Be5 Qe5 22.e4?? Qa1–+ 23.Ke2 Qh1 24.ed5 ed5 25.Kd2 Qe1 26.Kc2 Qe5 0–1. iczker – wistad, kurnik, 2011.

5.c4 d5 6.e3 dc4 7.Bc4 Nbd7 8.Nc3 Nb6 9.Bd3 Nbd5 10.Nf3 Nc3 11.Bc3 Qd5 12.a4 a6 13.0–0 ab5 14.ab5 Bd7 15.Qc2 Bb5=+ 16.Bb5 Qb5 17.Rfb1 Qc6 18.Ra8 Ra8 19.Qb2 b6 20.Ne5 Qd5 21.Ra1 h6 22.Ra8 Qa8 23.Qa1 Qa1 24.Ba1 Kf8 25.Nc6 Bd6 26.f3 Ke8 27.h4 Kd7 28.Nb8 Kc8 29.Na6? Kb7 30.Nc7 Kc7 31.Kf2 b5 32.e4 Ba3 33.Ke3 b4 34.g4 b3 35.Kd3 b2 (35...b2 36.Bb2 Bb2–+) 0–1. iczker – kesi1, kurnik, 2011.

4.e3 0–0

5.c4 a5 6.d4 b6 7.Nf3 Bb7 8.Be2 d6 9.Nbd2 Nbd7 10.0–0 Re8 11.a4 Nf8 12.Qb3 Ng6 13.Ba3 d5 14.c5 Bf8 15.cb6 cb6 16.Rac1 Ne4 17.Bd3 f5 18.Rc2 Rc8 19.Rfc1 Rc2 20.Rc2 Nh4 21.Be4 fe4 22.Ne5 Ba3 23.Qa3 Rf8 24.g3 Nf3 25.Kg2?? Ne1–+ 26.Kg1 Nc2 27.Qc3 Nb4 0–1. carocan – elowiec96, kurnik, 2011.

5.c4 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 c6 9.Qb3 d5 10.Nf3 Nbd7 11.d4 Ne4 12.Nbd2 Qa5 13.Bb2 Bb4 14.Qc2 Ndf6 15.Bd3 cb5 16.cd5 ed5 17.Ke2 Bg4 18.h3? Bf3 19.Nf3= Rc8?? 20.Qc8+– Bf8 21.Rc1 Qa2 22.Qc2 b4 23.Ba1 Qa3 24.Qb2 Qa4 25.Nd2 Nc3 26.Kf1 Qc6 27.Rc3 bc3 28.Qc3 Qd6 29.Kg1 Qb6 30.Qb3 Qc6 31.Bb2 g6 32.g3 h5 33.Kg2 h4 34.Nf3 hg3 35.fg3 Bh6 36.Kf2 Qe6 37.Bf1 Ne4 38.Kg2 Qf5 39.g4 Qf3 40.Kf3 Nd2 41.Ke2 Nb3 42.Kd3 Na5+/– 43.Bc1 Nc4 44.Kc3 Nd6 45.Kb4 b6 46.Ba3 Ne4 47.Kb5= Nd2 48.Bg2 1–0. carocan (1825) – cosmonautu (1785), kurnik, 2011.

5.c4 a6 6.Nf3 +=.

5.c4 b6 6.Nf3 Bb7 7.Be2 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4 0–0 7.Be2).

5.c4 c6 6.a4 (6.Nf3 d5+=) 6...a5 (6...d5 7.Nf3+=) 7.Qc2 (7.Nf3 d5=) 7...b6 (7...cb5 8.cb5 d5 9.Nf3=) 8.Be2 (8.Bd3 cb5 9.ab5 Bb7=) 8...d5 (8...cb5 9.cb5 Ra7 10.Nf3=) 9.Nh3 (9.cd5 Nd5 (worse is 9...Qd5 10.Bf3 Qd8 11.bc6+/–) 10.bc6 Qc7=) 9...dc4 (better is 9...Bb7+=) 10.g4? (better is 10.Ng5!? Re8 11.Bc4=) 10...Qd5 (10...cb5 11.ab5 Bb7 12.Rg1–/+) 11.f3 Ng4 (11...cb5 12.Nc3 Qb7 13.Nb5 Ng4+=) 12.Bc4?? (better is 12.Nf4 Bh4 13.Kf1=) 12...Qf3–+ 13.Rg1 (13.Rf1 Bh4 14.Nf2 Bf2 15.Rf2 Qf2 16.Kd1 Qg1 17.Ke2 Qh2 18.Kd1 Nf2 19.Ke1 Qg1 20.Bf1 Qg3–+) 13...Bh4 14.Nf2 Bf2 (14...Bf2 15.Kf1 Nh2) 0–1. Pruvost,Alain – Testart,Jean Louis, Herlies op, 1998.

5.Bd3 c5 6.Nh3 d5 7.c4 d4 8.e4 e5 9.Ng5 Nbd7 10.f4 h6 11.Nh3 ef4 12.Nf4 Ne5 13.Qe2 Bg4 14.Qf2? g5 15.Bc2 Nc4 16.Nd3 Ne4 17.Qf1 Qa5 18.Bc1 Ne3 19.Bb3 Nf1 20.Rf1 Bd6 21.h3 Bg3 22.Nf2 Bh5 23.Bc4 Rae8 24.a4 Nc3 25.Be2 Re2# 0–1. tschulz – Lanzelot, mySchach.de, 2004.

5.Bd3 d6 6.Nf3 +=.

5.Bd3 h6 6.Nf3= b6 (6...a6 7.a4=) 7.g4 (7.0–0 a6=) 7...Bb7 (7...Ng4!? 8.Bg7 Kg7+=) 8.g5= hg5 9.Ng5 Bh1?? (9...e5 10.Be5 Re8+/–) 10.Bf6 g6 (10...Bc5 11.Qh5 Be4 12.Be4 Re8 13.Qf7 Kh8 14.Qg7) 11.Qh5!! (11.Qh5 gh5 12.Bh7) 1–0. Chernisher – Les, USSR, 1970.

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

5.Nf3 h6 6.Be2 Nh7 7.0–0 Bf6 8.d4 d5 9.c4 c6 10.a4 dc4 11.Bc4 cb5 12.ab5 b6 13.Nc3 Nd7 14.Ne4 Bb7 15.Nf6 Nhf6 16.Ne5 Ne5 17.de5 Nd5 18.Bd5 Bd5 19.f4 Qb8 20.f5 Qb7 21.Qg4 ef5–/+ 22.Rf5 Be6 23.Qg3?? Bf5 24.e6 Bg6 25.ef7 Qf7 26.h4 Bh7 27.Ra4 g6 28.Rf4?? Qb3 29.Bd4 Qd1 30.Kh2 Rf4 31.Qf4= Rf8 32.Qd6 Qg4 33.Qe7 Rf7 34.Qe8 Rf8 35.Qe7 Rf7 36.Qe8 Rf8 37.Qe7 ½–½. elsh1403 – tomborell, kurnik, 2011.

5.f4 a6 6.a4 b6 7.Qf3 d5 8.Nc3 +=.

5.f4 a6 6.a4 d6 7.Nf3 Nbd7 (7...Ne4 8.d3 Bh4 9.g3+=) 8.Be2= Nc5 (8...Ne4 9.0–0=) 9.0–0 Bd7 (9...Nd5 10.c4 Nf6 11.Nc3=) 10.c4 (10.Nc3 ab5 11.ab5 Ra1 12.Qa1 c6=) 10...ab5 11.ab5 Ra1 12.Ba1 Qa8 (12...d5 13.Qc2 Bd6 14.Be5+=) 13.Nc3 (13.Bf6 Bf6 14.d4 Na4+=) 13...Qa3= 14.Qc2 Qb3 15.Bd1 (15.Qb2 Ra8=) 15...Qc2 (better is 15...Qc4!? 16.d4 Ra8+=) 16.Bc2+= b6 (16...d5 17.d4 Nce4 18.Ne4 Ne4 19.Be4 de4 20.Ne5=) 17.Bb2 (17.d4 Nb7+/–) 17...Nb7 (17...d5 18.Ne5 dc4 19.Nc4=) 18.Ne4 (18.Ra1 Na5 19.d3 c6+=) 18...Na5 (18...Ne4!? 19.Be4 d5 20.cd5 Bb5=) 19.Nf6+/– Bf6 20.Bf6 gf6 21.Bd3 (21.d3 Ra8+/–) 21...Ra8 (21...c6 22.bc6 Bc6 23.Nd4+=) 22.Ra1 Re8 (22...c6 23.Be2+=) 23.Be2+/– e5 24.g3 (24.Kf2 e4 25.Nd4 Be6+/–) 24...Bg4= 25.fe5 (25.Ra4 Nb3=) 25...fe5 26.Ra4 Nb3 27.d3 Nc5 (27...Nc1 28.Kf2=) 28.Ra3 (28.Ra7 Nd3 29.Bd3 e4+=) 28...e4= 29.de4 Re4 (29...Ne4 30.Kg2=) 30.Kf2 Bf3 (30...f5 31.Ng5 Re7 32.h3 Be2 33.Ke2=) 31.Kf3+= (worse is 31.Bf3 Rc4 32.Ra7 Nd3 33.Ke2 Ne5–/+) 31...Re7 32.Bd3 Nd7 (32...Nd3 33.Rd3 f5 34.Rd4+=) 33.Bf1 (33.g4 Ne5 34.Kf4 Kg7+=) 33...Kg7 (33...Ne5 34.Kf4=) 34.Ra7 (34.Kf4 Ne5+=) 34...Ne5= 35.Kf4 Re6 36.Bh3 Re7 37.Bf1 h6 (37...f5 38.h3=) 38.h4 (38.g4 Ng6 39.Kf3 Kf6=) 38...Kf6 (38...f5 39.Ra8=) 39.Ra8 Kg7 40.Ra7 Ng6 41.Kf3 Kf6 42.Ra8 Re5 43.Bd3 (43.Be2 Ke6+=). De Cat,Ben – Valjodov,T, Brugge op, 1997.

5.f4 a6 6.Nf3 +=.

5.f4 b6 6.Be2 Bb7 7.Nf3 (--> 4.e3 b6 5.f4 0–0 6.Nf3 Bb7 7.Be2).

5.f4 c5 6.Nf3= a6 7.Nc3 d6 (7...d5 8.ba6 Na6 9.Be2=) 8.a4 (8.ba6 Na6 9.Be2 d5=) 8...Nbd7 (8...b6 9.Be2=) 9.Be2 ab5 (9...b6 10.0–0=) 10.ab5 Ra1 11.Qa1 Nb6 (11...e5 12.fe5 Ne5 13.e4=) 12.0–0 Bd7 (12...d5 13.Qe1=) 13.e4 Qa8 (13...d5 14.e5 Ne4 15.Ba3=) 14.g3 (14.Qb1 Rd8=) 14...Qa1 (14...Qd8!?=) 15.Ra1+= Ra8 16.Ra8 Na8 17.e5 Ne8 18.Ba3 (18.h3 d5+=) 18...d5 (18...b6 19.d4+=) 19.d4 cd4 20.Be7 (20.Nb1 Bd8 21.Bc5 Nb6 22.Nd4 f6+=) 20...dc3 21.Bd8 Nec7 (21...Nac7 22.Nd4+=) 22.Nd4 Kf8 (22...Bc8 23.Kf2+=) 23.b6+/– Ne8 (23...Nb6 Theme: Deflection from c7 24.Bc7) 24.Bb5 (24.Bd3 h6+/–) 24...Bc8 (24...Bb5!? 25.Nb5 Kg8+/–) 25.Kf2 f6 26.Ke3 fe5 27.fe5 g6 28.Kd3 Ng7 29.g4 Kf7 30.Kc3+– h6 31.Kb4 Ne8 32.Kc5 Kf8 33.Bd3 Kf7 34.Nb5 g5 35.Nd6 Nd6 36.Kd6 Ke8 37.Bc7 Kf7 38.Bb5 (38.Bb5 Kf8 39.Bd7 Bd7 40.Kd7+–) 1–0. Crowl – Erskine, Victoria ch, 1946.

5.Nf3 a6

6.a4 b6 7.Be2 =.

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

6.a4 d5 7.Be2 c5 8.0–0 Bd7 9.c4 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bc3 Qb6 13.d3 Rd8 14.Nbd2 Be8 15.Qc2 Nbd7 16.Ra1 Rc8 17.Ra4 Qd6 18.Qb2 Bd8 19.h3 Bc7 20.Ra7 b6 21.Qa2 e5 22.cd5 Nd5 23.Ne4 Qe6 24.Nfg5 Nc3 25.Ne6 Na2 26.Nc7 Nc1 27.Bg4 Nd3 28.Ne8 Re8 29.Rd7 Nb4 30.Rb7 Nd5 31.Nd6 Rf8 32.Nf7 Re8 33.Nd6 1–0. pcmvr – grem (2350), net–chess.com, 2014.

6.a4 d6 7.d4 (7.Be2 e5=) 7...c6 8.Nc3 Bd7 (8...Qa5 9.Qd2=) 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Nb5 Na6 13.0–0 Qb6 (13...Nb4 14.Be2+=) 14.c4 (14.Qa3 Bc6=) 14...Ra8 (14...Bc6 15.Ng5=) 15.Nc3 (15.Bc3 Nc7 16.Qb1 Nb5=) 15...Qd8 (15...d5 16.cd5 ed5 17.Ne5=) 16.Qb1 Nb4 17.e4 (17.Be2 d5=) 17...Nd3 18.Qd3 Qc7 19.Rb1 Ne8 (19...Rc8 20.e5 de5 21.Ne5=) 20.Rc1 (20.Bc1 Rc8 21.Bf4 Qc4 22.Qc4 Rc4 23.Rb7 Rc7=) 20...Qb6 21.Nd1 Ra4 22.h3 (22.d5 Nf6=) 22...h6 (22...Qb4 23.Qc2=) 23.d5 e5 (23...Nf6 24.Bd4 Qc7 25.de6 fe6 26.Nb2+=) 24.c5+= Qb4 25.cd6 Bd6 26.Be5 Qe4 27.Qe4 Re4 28.Bd6 Nd6 ½–½. Luzuriaga,Norberto Horacio – Camargo,Peter, corr I WCH Prelim. LIAPE, 2003.

6.c4 d5 7.Qa4 +=.

6.Be2 ab5 7.Bb5 d5 =.

6.a4 ab5

7.Bb5 c6 8.Be2 d5 9.0–0 Qb6 (9...Nbd7 10.Ne5=) 10.Qc1 (10.Bc3 Na6=) 10...Nbd7+= 11.d4 Qc7 12.c4 b6 13.Nc3 ½–½. Hirtreiter – Cody, corr SOK–90–64, 1990.

7.ab5 Ra1

8.Ba1 c5 9.c4 (9.d4 d5 10.dc5 Ne4=) 9...d5 10.Be2 Nbd7 11.0–0 Nb6 (11...dc4 12.Bc4 Nb6 13.d3=) 12.d3 Re8 (12...Bd6 13.Nbd2=) 13.Qc2 Bf8 (13...Nfd7 14.Nc3=) 14.Rd1 (14.Nbd2 Nfd7+=) 14...Nfd7 15.Nc3 g6 (15...Nf6 16.d4 cd4 17.Rd4+=) 16.Na4 Na4 17.Qa4 b6 (17...Bd6 18.Qc2+=) 18.d4 (18.Qa8 dc4 19.dc4 Qe7+/–) 18...Bb7 19.Qc2 Bg7 20.dc5 Ba1 (20...Nc5 21.Bg7 Kg7 22.cd5 Bd5 23.Bc4+/–) 21.c6+/– (21.Ra1?! Nc5 22.cd5 Qf6=) 21...Bg7 22.cd5 (22.cd7?! Qd7 23.cd5 ed5+= (23...Bd5? 24.e4+–)) 22...Bc8 (22...ed5 23.cb7 (23.cd7?! Qd7 24.Nd4 Be5+=) 23...Nf6 24.Rc1+–) 23.de6 (23.cd7 Bd7 24.de6 Re6+/–) 23...Re6+/– 24.cd7 Bd7 25.Nd4 (25.Rd2 Re8+/–) 25...Bd4 (25...Rd6!?+/–) 26.Rd4+– (26.ed4?! Qe8 27.Bf1 Bb5 28.Bb5 Qb5=) 26...Qe8 (26...Re7 27.Qc6+–) 27.Qd1 Re7 28.Bf3 (28.Rd6 g5+–) 28...Kg7 (28...h6 29.Ra4 Qf8 30.Qd5+–) 29.Qa1 (29.Rd6 Kh6 30.Qd4 f5 31.Qh4 Kg7 32.Qf6 Kh6+–) 29...f6+/– 30.Qa7 (better is 30.Qb2!?+/–) 30...Bb5+= 31.Qb6 (31.Qa1 Rd7+=) ½–½. Meyer,Frank (2035) – Knop,Hauke (1820), Wichern op 6th, 2001.

8.Ba1 c6 9.bc6 bc6 10.Be2 Qa5 11.Nc3 Ba6 12.0–0 Be2 13.Qe2 d5 14.Nd4 c5=+ 15.Nb3 Qc7 16.Bb2 Nc6=+ 17.Ra1 Rb8 18.Ba3 c4 19.Be7 Qe7 20.Nd4 Nd4 21.ed4 Qc7 22.h3 h6 23.Qd1 Qf4–/+ 24.Ne2 Qf5 25.c3 Ne4 26.Qe1 Qg5 27.Ng3 Nd2 28.Kh2?? Nb3–+ 29.Ra7 Qf6 30.Qe3–/+ Kh7 31.f4 g6 32.Qe2 Nc1 33.Qc2? Nd3 34.Qa4 Qf4 35.Qd7 Qf6 36.Qc7? Rb1 37.Ra8?? Kg7 38.Qc8 h5 39.Qh8# 1–0. PingPongPeng (1700) – Solare,Juan Maria (1870), Rated game, 3m + 0s, 2004.

8.Ba1 c6 9.bc6 bc6 10.Bf6 (10.Be2 d6=) ½–½. Palac,Mladen (2580) – Zelcic,Robert (2540), Verona op, 2002.

8.Ba1 d5 9.c4 dc4 10.Bc4 Nbd7 11.0–0 Nb6 12.Be2 Nfd5 13.d4 f5 14.Nbd2 Qe8 15.Ne5 Rf6 16.Qb3 Rh6 17.Rc1 Bd6 18.g3 Nf6 19.Bf3 g5 20.Nf1 g4 21.Bg2 Nbd5 22.Bb2 Bd7 23.Nd7 Qd7 24.Ra1 Kf7 25.Ra7 b6 26.Ra8 Rg6 27.Nd2 Rg8 28.Ra7 h5 29.e4 fe4 30.Ne4 Ne4 31.Be4 Ne7 32.Ra1 Rg5 33.Re1 (better is 33.Bd3!?+/–) 33...Rb5= 34.Qa4 c6 35.Ba1 Bb4 36.Rc1 Nd5 37.Qa8 Ra5 38.Qh8 Nf6 39.Bc6 Ra1 (39...Qa7 40.Bb2 Ra2 41.d5 Rb2 42.Be8 Ne8 43.Qh5 Kf6 44.Qh6 Ke5 45.Qe6 Kd4 46.Qg4 Ke5 47.Qg5 Kd4 48.Rd1 Kc4 49.Qe3+/–) 40.Ra1 (better is 40.Bd7!? Rc1 41.Kg2+=) 40...Qc6–/+ 41.Ra7 Be7 42.Re7 Ke7 43.Qg7 Kd6 44.Qf6 Qd5 45.Qd8 Kc6 46.Qc8 ½–½. Bennett,Hilton Petrie (2075) – Mistry,Prashant (2015), Oceania zt Auckland, 2005. (=1.Nf3 Nf6 2.b4 e6 3.b5 Be7 4.Bb2 0–0 5.e3 a6)

8.Ba1 d6 9.d4 =.

6.c4 ab5

7.cb5 c6 8.a4 cb5 9.ab5 Ra1 10.Ba1 b6 11.Be2 Bb7 12.0–0 d6 13.Nc3 Nbd7 14.d4 Qa8 15.Qc2 Qa3 16.Bb2 Qb4 17.Na2 Qa5 18.Ra1 Ra8 19.Nc3 Qb4 20.Na2 Qa5 21.Bc3 Qa3 22.Bb4 Qb4 23.Nb4+/– Ra1 24.Bf1 Be4 25.Qb2 Rb1 26.Qc3 d5 27.Qc8 Nf8 28.Nc6 Ba3 29.Nfe5 N6d7 30.Nd7 Bd3 31.h3 Rf1 32.Kh2 Bd6? 33.g3 Be4–+ 34.f3 Bf3 35.Ne7 Be7 36.Nf8 Bf8 37.h4 Rh1 0–1. elsh1403 – ishbarimeod (1675), kurnik, 2011.

7.cb5 c6 8.a4 cb5 9.ab5 Ra1 10.Ba1 d5 11.Nc3 Nbd7 12.d4 Nb6 13.Be2 Qc7 14.0–0 Nc4 15.Bc4 Qc4 16.Qb1 Qc7 17.Rc1 Qb8 18.Na4 Qa7 19.Nc5 Bc5 20.dc5 Bd7 21.Bf6 gf6 22.Qb2 Kg7 23.b6 Qa4 24.Nd4 e5 25.Nf3 Bc6 26.h3 Qe4 27.Nd2 Qg6 28.Qc2 Qc2 29.Rc2 Ra8 30.f3 Ra5 31.Kf2 Kg6 32.e4 de4 33.Ne4 Be4 34.fe4 f5 35.Ke3 f4 36.Kf3 Ra3 37.Kg4 Rg3 38.Kh4 h5?? 39.c6+– bc6 40.Rc6?? f6 41.Rc2?? Re3?? 42.b7 Rb3+/– 43.Rc7 Rb4 44.Rd7 Rb5 45.g4 hg4 46.Kg4 Rb3 47.h4?? Rg3 0–1. elsh1403 – patto444, kurnik, 2011.

7.cb5 c6 8.a4 cb5 9.ab5 d5?? 10.Nc3 Bd7?? 11.Ra8+– 1–0. elsh1403 – sdavid, kurnik, 2011.

7.cb5 c6 8.a4 c5 9.Be2 d6 10.0–0 Nbd7 (10...e5 11.d3=) 11.d4 Ne4 (11...d5 12.dc5 Nc5 13.Be5=) 12.Nfd2 (12.Nc3 d5=) 12...f5 13.Ne4 fe4 14.Qb3 (14.Bg4!?=) 14...d5+= 15.Nd2 c4 16.Nc4 dc4 17.Bc4 Nf6 18.Be6 Kh8 19.d5 (19.Rfc1 Qb6 20.Bc8 Rac8 21.Rc8 Rc8+=) 19...Nd7 (19...Be6 20.de6 Qa5+=) 20.Rac1 (better is 20.Bd4=) 20...Qa5?? (better is 20...Nc5!? 21.Qc3 Ne6 22.de6 Bf6–/+) 21.Ba3 (21.Rc8!? Rac8 22.Bd7+–) 21...Qd8 (better is 21...Ba3 22.Qa3 Qd8=) 22.b6?? (22.d6 Bh4 23.Qc2=) 22...Nf6?? (better is 22...Ba3!? 23.Qa3 Nb6 24.Bc8 Nc8–/+) 23.a5 (better is 23.Rc8!? Rc8 24.Bc8 Ba3 25.Bb7+/– (worse is 25.Qa3 Qc8 26.Rc1 Qd8=)) 23...Be6 24.Be7 Qe7 25.de6 The passed pawn on e6 will quickly become a dangerous weapon 25...Rfe8 (25...Ra5 26.Rc7 Qd6 27.e7–/+) 26.Rc7 Qe6 (26...Qd6+=) 27.Qc3 (better is 27.Qe6 Re6 28.Rb7 Ra5 29.Rb1=) 27...Re7 28.Rc1 h6 29.Re7 Qe7 30.h3 Nd5 31.Qd2 Rd8 32.Qd4–/+ Nf6 33.Rc7 Rd4 34.Re7 Rd7 35.Re5 Kg8 36.f4 Kf7 37.g4 Rd5 38.a6? ba6?? 39.Rd5+– (39.Rd5 g6 40.Ra5+–) 1–0. Twombly,R – Wright,R, Houston TX USA, 1994.

7.cb5 c6 8.Be2 cb5 9.Bb5 d5 =.

7.cb5 d5 8.a4 Bd7 9.Nc3 b6 10.Be2 c6 11.0–0 cb5 12.ab5 Ra1 13.Qa1 Qc7 14.Rc1 Bd6? 15.Nd5!+– Qd8? 16.Nf6 gf6 17.Bf6 Qe8 18.Qd4 e5 19.Qh4 Bf5 20.Qh6 Qe6 21.Qg7 1–0. elsh1403 – charcot (1700), kurnik, 2011.

7.cb5 d5 8.a4 Nbd7 9.d4 c6 10.Nc3 cb5 11.Nb5 Nb6 12.Bd3 Nc4 13.Qc2 Nb2 14.Qb2 Qa5 15.Nd2 Bb4 16.Ke2 Bd2 17.Qd2 Bd7 18.Rhc1 Qd2 19.Kd2 Rfc8 20.Nc7 Ra5 21.f3 Ra4 22.Rab1?? Ra2–+ 23.Kd1? Ba4 24.Ke1 b5?? 25.Nb5 Rc1 26.Rc1 Bb5 27.Bb5 g6 28.Kf1 Kg7 29.Rc7 h5 30.Rb7 h4 31.h3 g5 32.Kg1 Rb2 33.Ba6 Rb7 34.Bb7 Ne8 35.Bc6 Nd6 36.Kf2 Kf6 37.Ke2 Nc4 38.Bb5 e5 39.de5 Ne5 40.Bd3 Ke6 41.Bh7 f6 42.Bg8 Kd6 43.Kd2 Kc5 44.Kc3 Nc6 45.e4 d4–/+ 46.Kd2 Ne5 47.Bd5 Kb4 48.Kc2 Nc4?? 49.Bc4?? Kc4–+ 50.Kd2 d3 51.Ke3 Kc3 52.f4 Kc2 53.fg5 fg5 54.e5 1–0. elsh1403 – hok (1690), kurnik, 2011.

7.cb5 d5 8.Nc3 c6 9.a4 cb5 10.ab5 Ra1 11.Qa1 Nbd7 12.d4 Nb6 13.Be2 Bb4 14.0–0 Bc3 15.Bc3 Ne4 16.Bb4 Re8 17.Rc1 Bd7 18.Qa7 Nc4 19.Qb7 Qc8 20.Qa7 Bb5 21.Ne5 Qb8 22.Qf7 Kh8 23.Qf4?? Ne5–+ 24.de5 Be2 25.h3 Qb4 26.Qf7 Qe7 27.Qe7+– Re7 28.Rc8 Re8 29.Re8 1–0. elsh1403 – kesi1, kurnik, 2011.

7.cb5 d6 8.Nc3 Bd7 9.Be2 Qe8 10.a4 c6 11.0–0 cb5 12.ab5 d5?? 13.Ra8+– Qc8 14.Qb3 Qc5 15.Rc1 Qb4 16.Qb4 Bb4 17.Na4 Ne4 18.Bc3 Bd6 19.Be5 f5 20.d3 Be5 21.Ne5 Nf6 22.Rc7 Bb5 23.Rb7 Ba4 24.Rbb8 Rb8 25.Rb8 Be8 26.f3 Kf8 27.d4 Ke7 28.Ba6 g5 29.Rb7 Kd6 30.Rb6 Kc7 31.Rb7 Kd6 32.Rg7 h6 33.Ra7 g4 34.Kf2 h5 35.Bc8 h4 36.Ra6 Kc7 37.Be6 gf3 38.gf3 f4 39.Bd5! fe3 40.Ke3 Nd5 41.Ke4 Nc3 42.Kd3 Nb5 43.Rh6 Nd6 44.Rh4 Bb5 45.Kc3 Be2 46.Rh7 Kb6 47.f4 Nb5 48.Kd2 Bc4 49.Rd7 Be6 50.Re7 Nd4 51.Kd3 Kc5 52.Re6! Ne6 53.f5 Nd4 54.f6 Ne6 55.f7 Kd5 56.Ng6 Kd6 57.f8Q (57.f8Q Nf8 58.Nf8+–) 1–0. elsh1403 – ludovrac, kurnik, 2011.

7.cb5 d6 8.Bc4 +=.

5.Nf3 b6

6.a4 Bb7 7.Be2 c5 8.0–0 d5 9.d3 Nbd7 10.Nbd2 h6 11.c4 Re8 12.Qc2 Nf8 13.a5+= dc4 14.Nc4+/– Rc8 15.e4 Ng6 16.a6 Ba8+= 17.Nfe5 Ne5 18.Be5 Qd7 19.Qb3 Qd8 20.Rae1 Qd7 21.Rd1 Red8 22.Bg3 Qe8 23.Rde1 Nd7 24.Bg4 Nf6 25.Bd1 Qd7 26.Be2 Qe8 27.f4 Rd4 28.f5 ef5 29.Rf5 Rcd8 30.Be5 Qf8? 31.Ref1 R4d7+/– 32.R1f3 Qe8 33.Rg3 Kh7 34.Qb1 Qf8 35.Qf1 Qh8 36.Bf6 Bf6 37.Rf6 gf6 38.Qf5 1–0. pcmvr (2110) – kostaspetidis (2105), net–chess.com, 2006.

6.a4 Bb7 7.Be2 d6 8.0–0 c6 9.c4 c5 10.d3 d5 11.Nbd2 dc4 12.Nc4 Nbd7 13.Nfd2 Qc7 14.a5+= Rfd8 15.f4 Nf8 16.ab6 ab6 17.Be5 Ng6?? 18.Bc7 1–0. pcmvr (2225) – guerino (2100), net–chess.com, 2006.

6.Nc3 Bb7 =.

6.c4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4 0–0).

6.c4 Bb7 7.Be2 d5 8.0–0 (-->1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4 0–0 7.Be2 d5 8.0–0).

6.c4 d6 7.d4 Bb7 8.Nc3 Nbd7 9.Bd3 a6 10.a4 a5 11.0–0 d5 12.Qc2 dc4 13.Bc4 Bf3 14.gf3 Bd6 15.Kh1 Nh5 16.Rg1 Rc8 17.Rg2 c6 18.Ba2 cb5 19.ab5 Nhf6 20.Rag1 g6 21.Bb1 Bb4 22.Qd3 Ne5 23.de5 Qd3 24.Bd3 Bc3 25.Ba3 Rfd8 (25...Be5?! 26.Bf8 Kf8 27.f4+=) 26.ef6 Rd3 27.Rc1 Rcd8 (27...Rcd8 28.Be7 R8d5–/+) 0–1. Harazinska,Ewa – Sokolowska,Anna, PPJ – D10 Ustron / PZSzach Poland, 2007.

6.c4 Ne4 7.Be2 Bf6 8.d4 c5 9.Nbd2 Bb7 10.0–0 d6 11.Qc2 Nd2= 12.Qd2 Nd7 13.a4 a5 14.Rad1 d5 15.Rfe1 Re8 16.Bd3 Rc8 17.Qc2= h6 18.Qb1 cd4 19.Nd4 Bd4 20.Bh7 Kh8–/+ 21.Bd4 Rc4 22.Bd3 Ra4 23.Qb3 Rb4–+ 24.Qa3 Qe7 25.Qa1 e5 26.Bc3 Rg4 27.Bf5 Rg5 28.Bd7 Rg2?? 29.Kg2= Qg5?? 30.Kh1 d4 31.e4 Re7 32.Bd2 (32.Bd2 Qh5 33.Ba5 Rd7 34.Bb6=) 1–0. pumpkin (2230) – eweram (1675), net–chess.com, 2005.

6.d4 a6 7.a4 +=.

6.d4 Bb7 7.Nbd2 d5 (7...a6 8.a4+=) 8.Bd3= Nbd7 9.0–0 Ne4 (9...c5 10.c4=) 10.c4+= Ndf6 11.a4 (11.Rc1 a6 12.cd5 Nd2 13.Qd2 Nd5=) 11...Nd2 (11...a6 12.Ba3=) 12.Nd2 dc4 13.Bc4 (13.Nc4 a6=) 13...c5 (13...c6 14.Qc2=) 14.bc6 (14.dc5 Bc5 15.Qe2 Qe7=) 14...Bc6 15.Qe2 (15.Qb3 Rc8=) 15...Qd7 16.Bb5 (16.a5 Rfb8=) 16...Bb5 (16...Rfc8 17.Rfc1=) 17.ab5 Rac8 (17...Rfc8 18.Nf3=) 18.Nf3+= White is in command 18...Rc7 19.Ne5 Qd5 20.Nc6 (better is 20.Rfc1 Rfc8 21.Nc6+=) 20...a5? (better is 20...Ra8+=) 21.Ne7+– Re7 22.Ba3 Rc7 (22...Rfe8 23.Be7 Re7 24.Rfc1+–) 23.Bf8 Kf8 24.Rfc1 Ne8 (24...Qd8 25.Rc6 Nd5 26.Rc7 Qc7 27.e4+–) 25.Qd3 (25.Rc7 Nc7 26.Qc2 Nb5 27.Qh7 g6+–) 25...Rc1 (25...Kg8 26.Rc7 Nc7 27.Rc1+–) 26.Rc1 Nd6 (26...h6 27.Rc6+–) 27.Rb1 (27.Qh7 Ne8+–) 27...Qa2 (27...Qe4 28.Qe4 Ne4 29.Rc1+–) 28.e4 (28.Qh7!? g6 29.Qh8 Ke7+–) 28...a4 (28...Qc4 29.Qc4 Nc4 30.d5+–) 29.d5 (29.e5 Nf5+–) 29...ed5 30.ed5 (30.ed5 Kg8 31.Re1+–) 1–0. Labahn,Wolfgang – Funkel, Vergleichskampf SV E, 1988.

6.d4 Bb7 7.Bd3 a6 +=.

6.d4 Bb7 7.Bd3 c5 8.0–0 (8.dc5 bc5 9.0–0 d5=) 8...d6 9.dc5 bc5 10.c4 Nbd7 11.Nbd2 d5 12.a4 Qc7 13.Qc2 Bd6 14.h3 (14.cd5 ed5 15.Rac1 a6=) 14...Rac8 15.Rfd1 Ne5 16.Ne5 Be5 17.Nf3 (17.Be5 Qe5 18.Nf3 Qh5=) 17...Bb2 18.Qb2 d4 (18...dc4 19.Bc4 Bf3 20.gf3+=) 19.ed4 Bf3 20.gf3 Qf4 (20...Rfd8 21.dc5 Qc5 22.Rac1=) 21.Be2 (21.Qc1 Qf3 22.Qe3 Qh5=) 21...Qh4 22.dc5 Rc5 23.Qd4 Qg5 24.Kh2 ½–½. Rogers,Jonathan (2245) – Martin,Andrew D (2430), BCF–ch, 1991.

6.Be2 a6 =.

6.Be2 Bb7 7.0–0 a6 =.

6.Be2 Bb7 7.0–0 d5 8.a4 c5 9.d4 Nbd7 10.dc5 (10.dc5 Nc5 11.Bd4=) 1–0. Van Rooijen,Peter (1700) – Calderon,Jacobo Cruz, Liape B–001 email, 2002.

6.Be2 Bb7 7.d4 c5 (7...a6 8.0–0+=) 8.0–0= d6 (8...a6 9.Bd3=) 9.dc5 bc5 (9...dc5 10.Nc3=) 10.c4 Nbd7 11.Nc3 Qc7 12.Qc2 Ne8 (12...Rab8 13.Rfd1+=) 13.Bd3 (13.Rfd1 Nef6+=) 13...g6 (13...f5 14.Be2=) 14.Ne4 (14.e4 f5+=) 14...e5 15.Nc3 f5 (15...Bf3 16.gf3 Nef6 17.Rfd1+=) 16.e4 (16.Nd5 Bd5 17.cd5 Nb6+=) 16...f4 (16...fe4!? 17.Be4 Nef6+=) 17.Nd5+/– Qd8 (17...Bd5 18.cd5 Rc8 19.Rac1+/–) 18.Ne7 Qe7 19.Nd2 (19.Rfd1 Nef6+/–) 19...Nc7 20.f3 (20.Rfd1 Qg5+/–) 20...Ne6+= 21.Nb3 g5 (21...Nd4 22.Nd4 cd4 23.Rfd1+=) 22.Qf2 (22.Rfd1 Rab8+/–) 22...Rf6 (22...Nd4 23.Rfd1+/–) 23.Rfd1+/– Kh8 (23...Rb8 24.Qd2+/–) 24.Kf1 (24.Qd2 Rb8+/–) 24...Rg8 25.h3 (25.Kg1 Ra8 26.Qd2 Rb8+/–) 25...h5 (25...Nd4 26.Kg1+=) 26.Ke2 (26.Kg1 g4 27.hg4 hg4+=) 26...Nd4 27.Bd4 (27.Ke1 Re8+=) 27...ed4 28.Kd2 (28.Kf1 Ne5=) 28...Ne5 29.Re1 Rh6 30.a4 Qf6 31.a5= g4 32.hg4 hg4 33.Rh1 gf3 34.Rh6+= Qh6 35.gf3. Neuwald,Volker – Simon,Holger (2135), Baden HT opA, 2001.

6.Bf6 Bf6 7.d4 a6 =.

5.Nf3 c5

6.c4 b6 7.Be2= Bb7 (7...d5 8.0–0=) 8.0–0 a6 (8...d5 9.d4=) 9.a4 (9.ba6 Na6 10.d3 d5=) 9...ab5 (9...d5 10.ba6 Na6 11.d4=) 10.ab5 Ra1 11.Ba1 d5 12.d4 (12.d3 dc4 13.dc4 Be4=) 12...Nbd7 (12...dc4 13.Bc4 Bd5 14.Nbd2=) 13.Nc3 Qc7 (13...cd4 14.Nd4 Nc5 15.cd5 Nd5 16.Nc6 Bc6 17.bc6 Nc3 18.Bc3=) 14.Qb3 (14.Qd3 Rc8 15.Nd2 cd4 16.Qd4 e5+=) 14...dc4 (better is 14...cd4 15.Nd4 Nc5+=) 15.Bc4 (15.Qc4 Bd6=) 15...cd4 (better is 15...Bf3!? 16.gf3 cd4 17.ed4 Ra8–/+) 16.Nd4= Ng4 17.g3 Nc5 18.Qd1 Ne5 19.Be2 Rd8 20.f4 Ned7 21.Bf3 Nf6 22.Bb7 Qb7 23.Qe2 (23.Qf3 Qf3 24.Rf3 Nd3+=) 23...Nfe4 24.Nc6 (24.Ne4 Qe4 25.Nc6 Rd7+=) 24...Rd2 25.Qf3 f5 26.Ne4 Ne4 27.Rd1 Bc5 28.Rd2 (28.Bd4 Rd1 29.Qd1 Bd4 30.ed4 Qd7=) 28...Nd2+= 29.Qe2 Qd7 (29...Ne4 30.Bd4=) 30.Bd4 Ne4 31.Qa2 (31.Ne5 Qd6=) 31...Bd4 (31...Qe8 32.Bc5 bc5 33.Qc4=) 32.Qa8 Kf7 33.ed4 Qc7 34.Ne5 Ke7 35.Nc6 (35.Qa3 Ke8+/–) 35...Kf7 36.Qh8 Kg6 37.Qe8 Kf6 38.Qf8 Kg6 39.Qe8 (39.Ne5 Kh6 40.Nc6 Kg6=) 39...Kf6 40.Ne5 (better is 40.Qg8+/–) 40...Nd6?? (40...Qc1 41.Kg2 Qd2 42.Kh3 Nf2 43.Kh4 g5 44.Kh5 Qe2 45.g4 Qg4 46.Ng4 Kg7 47.Qe7 Kg8 48.Nf6 Kh8 49.Qh7) 41.Nd7+– (41.Nd7 Qd7 42.Qd7+–) 1–0. Golyak,Isay G (2275) – Almeida,Sergio, New York State–ch, 2001.

6.c4 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0).

6.c4 d5 7.Nc3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 Be7 7.Nc3 0–0).

6.c4 d6 7.Be2 Nbd7 (7...a6 8.ba6 Na6 9.0–0=) 8.Nc3 Qc7 (8...a6 9.ba6 ba6 10.Rb1=) 9.Qb3 (9.0–0 d5=) 9...Rd8 (9...Nb6 10.0–0=) 10.0–0 Nf8 (10...e5 11.d3=) 11.e4 (11.d3 d5=) 11...e5 (11...Ng6 12.Rfe1=) 12.Ne1 (12.Bc1 Ng6=) 12...Ne6+= 13.Nc2 Re8 (13...Nf4 14.Rae1+=) 14.Ne3 (14.Rfe1 Qd7=) 14...Nd4 (14...Nf4 15.Rfe1=) 15.Qd1 Qd8 16.d3 Nd7 (16...a6 17.ba6 ba6 18.Rb1=) 17.Ncd5 Bg5 18.Bg4 Nf6 (18...a6 19.a4=) 19.Nf6 Qf6 (19...Bf6 20.Bc8 Rc8 21.Bd4 cd4 22.Nd5+=) 20.Nd5 Qd8 21.Bd4 ed4 22.f4 Be7 23.Bc8 Rc8 24.Qg4 Bf8 (24...Bh4 25.Rf3+/–) 25.f5 Kh8 (25...f6 26.a4+/–) 26.f6 g6 27.Rf3 (27.Qh3 Rb8+/–) 27...Re5 (27...Rb8 28.Rh3+/–) 28.Raf1 (28.a4 Bh6+/–) 28...Qe8 (28...Bh6 29.Rh3 Bd2 30.a4+/–) 29.Rh3 Qe6 (29...h6 30.a4+/–) 30.Qf3 (30.Qe6 Re6 31.a4 Kg8+/–) 30...Rg5 (better is 30...a6+/–) 31.Qf4?? (31.a4 Re5+/–) 31...Rg4?? (better is 31...Qh3! 32.Qg5 Qd3–/+) 32.Qf3 Rg5 33.Rg3 Qe5 34.Rg5 Qg5 35.Qf4 Qf4 36.Rf4 Re8 37.g4 Bh6 38.Rf3 Bg5 39.Kg2 Bh4 40.Kh3 Bg5 41.Kg3 Re5 42.h4 Bd2 43.Ne7 Re6 44.Nc8 a5 45.ba6 ba6 46.Ne7 g5 47.hg5 Bg5 48.Nd5 a5 49.Rf2 h6 50.Rb2 Bf6 ½–½. Kreuzer – Dieter, 1982.

6.Be5 d6 7.Bf4 Nh5 =+.

5.Nf3 c6

6.a4 a6 7.c4 ab5 8.ab5= Ra1 9.Ba1 d5 10.Nc3 Nbd7 11.Be2 (11.d4 Bb4 12.Qa4 c5 13.dc5 Bc5 14.cd5 Nb6=) 11...Nc5 (11...dc4 12.bc6 bc6 13.Bc4=) 12.0–0 Bd7 13.Qc2 (13.d4 Nce4=) 13...Qc7 (13...dc4 14.Bc4 cb5 15.Nb5= (worse is 15.Bb5 Bb5 16.Nb5 Qd3+=)) 14.Rc1 (14.d4 Nce4 15.bc6 Bc6 16.Ne4 Ne4=) 14...Ra8+= 15.cd5 cd5 (15...ed5 16.bc6 Bc6+=) 16.Nd4 (better is 16.Na4 Rc8 17.Bf6 gf6 18.d4+=) 16...Nce4?? (16...e5 17.Nf5 Bf5 18.Qf5–+) 17.f3?? (better is 17.Ne4 Qc2 A) 18.Rc2?? Ra1 (18...Ne4?! 19.Bb2=; 18...de4?! 19.Bc3+=) 19.Bf1 Ne4–+; B) worse is 18.Nc2 Ne4 (worse is 18...de4 19.f3=) 19.d4 Nd6–/+; C) 18.Nf6 Bf6 19.Nc2+–) 17...Nd6 (17...Nc3 18.Qc3 Qb6 19.Qd3+=) 18.Qb2 (better is 18.f4!?=) 18...Nc4–/+ 19.Bc4 Qc4 (19...dc4 20.e4–/+) 20.Qb1 g6 (20...e5 21.d3 Qb4 22.Qb4 Bb4 23.Nc2+=) 21.Kf2 (21.f4!?=) 21...e5+= 22.d3 Qb4 (22...Qc5 23.Nde2+=) 23.Qb4 Bb4 24.Nde2 d4 25.ed4= ed4 26.Ne4 Ne4+= 27.fe4 Bb5–/+ 28.Bd4 Bd3 29.Ng3 b5 30.Ke3 Bc4 31.e5 Ra2 32.Ra1 f5?? 33.ef6+= Rg2 The passed pawn on f6 will quickly become a dangerous weapon 34.Ra8= Kf7 35.Ra7 Kg8 36.Ra8 Kf7 37.Ra7 Ke6 38.Rh7 Bd6 39.Ne4 Bh2?? 40.Re7?? Kf5+/– 41.f7 Bf7 42.Rf7 Kg4 43.Nf2 Kh4?? 44.Bf6+– Kg3 45.Be5 Kh4 46.Rh7 Kg5 47.Bh2 b4 48.Bf4 Kf5 49.Rb7 Rg1 50.Rb4 Re1 51.Kf3 Re6 52.Rb5 Kf6 53.Ne4 Kg7 54.Rb7 Kf8 55.Nc5 Re8 56.Kg4 Rc8 57.Nd7 Ke8 58.Kg5 Rc6 59.Ne5 Rc5 60.Kg6 Kd8 61.Kf6 Kc8 62.Rh7 Rd5 63.Nc6 Rd7 64.Na7 ½–½. Wartenberg,Erwin – Mueller,Olaf2 (1625), Rheinhessen–ch H1 op, 1997.

6.a4 a6 7.c4 b6 8.d4 =+.

6.a4 a6 7.Be2 d5 8.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6 8.Be2).

6.a4 cb5 7.ab5 Qb6 8.d4 a6 9.c4 Bb4 10.Nbd2 d6 11.Be2 Ra7 12.0–0 Bd7 13.Qb3 a5 14.Bc3 Bc3 15.Qc3 a4 16.Qb4 d5 17.c5 Qa5+/– 18.Qa5 Ra5 19.b6 Nc6 20.Rfb1 a3 21.Bb5 Na7?? 22.Bd7+– Nd7 23.Rb3 Nb5+= 24.Rd3 Rfa8 25.Ne5 Nb8 26.Nb3 Ra4 27.f3 a2 28.Rd2 Ra3 29.Nd3? Rb3–+ (29...Rb3 30.Raa2 Ra2 31.Ra2 Na3–+ (31...Rd3?! 32.Ra8 h6 33.c6 bc6 34.Rb8 Kh7 35.b7=)) 0–1. tanto – pvhameren (1620), net–chess.com, 2001.

6.a4 cb5 7.ab5 d5 8.Be2 Bd7 9.0–0+= a6 10.Bd4 a5 11.c4 b6 12.Nc3+– dc4 13.Ne5 Nd5 14.Bc4 Nc3 15.Bc3 Bf6 16.Qg4 Be5 17.Be5 f6 18.Bd6 Re8 19.d4 Kh8 20.Bd3 e5 21.Qe4 f5 22.Qa8 ed4 23.Qa7 Be6 24.Bc7 Qd7 25.Bb8 Qa7 26.Ba7 Rf8 27.ed4 f4 28.Bb6 f3 29.Rfe1 Bg4 30.Bc5 Rc8 31.b6 fg2 32.b7 Rb8 33.Ra5 g6 34.Ra8 Ra8 35.ba8Q Kg7 36.Qf8# 1–0. marre – terl, internet, 2009.

6.a4 b6 7.Be2 Bb7 8.0–0 c5 9.c4 d5 10.cd5 Bd5 11.d3 Nbd7 12.Nbd2 Rc8 13.e4 Bb7 14.Nc4 h6 15.Qc1 Qc7 16.a5 Rfd8 17.Nfe5 Nf8 18.Qf4 Qb8? 19.Bh5! N8h7?? 20.Bf7 Kf8 21.Be6 Rc7 22.ab6 ab6 23.Ng6 Ke8 24.e5 Nd5 25.Qf7 1–0. Nemec,Zdenek (2035) – Vontina,Maria, OP–2011–0–01385, 2011.

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

6.a4 d6 7.Be2 =.

6.a4 Ne4 7.c4 (7.Be2 Bf6 8.Bf6 Qf6=) 7...Bf6 (7...d5 8.Nc3+=) 8.d4 (8.Bf6 Qf6 9.d4 a6=) 8...d5 (8...c5 9.Bd3 d5 10.Qc2+=) 9.Bd3 Nd6 (9...a6 10.Ba3 c5 11.ba6 Qa5 12.Nfd2 cd4 13.Bf8 de3 14.Be4 de4 15.Bg7 Bg7 16.ab7 Bb7 17.Ra2 ed2 18.Qd2–/+) 10.c5 Nc4 11.Bc4 dc4 12.Nbd2 (12.Qe2 b6+=) 12...cb5 (12...Qa5!? 13.Qc2 cb5 14.ab5 Qb5 15.Nc4 Nd7+=) 13.ab5+/– a6 (13...Bd7 14.b6+/–) 14.Nc4+– a5 (14...Nd7!?+–) 15.0–0 (15.Bc3 Qe8+–) 15...Bd7 (15...Nd7 16.Bc3 a4 17.Bb4+– (17.Ra4?! Ra4 18.Qa4 Nc5+–)) 16.Qb3 (16.Qa4 Bc8+–) 16...Be8 (16...Qc7 17.Bc3 a4 18.Ra4 Ra4 19.Qa4+–) 17.Bc3 a4 18.Ra4 Ra4 19.Qa4 Be7 20.Ba5 Qd5 (20...Qd7 21.Rb1+–) 21.Bc7 Nd7 22.Bd6 Bd6 23.Nd6 (23.cd6?! f6+–) 23...b6 (23...Nf6 24.Qc2 Bd7 25.Ne5+–) 24.e4 Nc5 25.dc5 (25.ed5?! Na4 26.de6 fe6+–) 25...Qc5 26.Qd4 Qd4 27.Nd4 Bd7 28.Ra1 f5 (28...f6 29.Nc6 g5 30.Ra7+–) 29.e5 g6 (29...h6 30.Ra6 Rb8 31.Ra7+–) 30.Ra7 (30.Ra7 Bb5 31.N6b5+–) 1–0. Gretencord,Ulrich – Pieleck,Rudi, remoteschach.de, 2003.

6.Be2 cb5 7.Bb5 d5 =.

5.Nf3 d5

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

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

6.c4 c6 7.a4 Nbd7 8.Nc3 a6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6 8.Nc3 Nbd7).

6.Bd3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Bd3).

5.Nf3 d6

6.c4 e5 7.Nc3 a6 8.a4 Bg4 9.Be2 Nbd7 10.h3 Be6 11.d4 Nb6 12.de5+= Ne8 13.ed6 Nd6? 14.c5+– Ndc4 15.Qd8 Rfd8 16.cb6 Nb2 17.bc7 Rdc8 18.b6 Bb4 19.Kd2 Ba5 20.Rhb1 Nc4 21.Bc4 Bc4 22.Ne5 Bd5 23.Kd3 Bg2 24.Nc4 Bc3 25.Kc3 Bh3 26.Nd6 Rf8 27.Nb7 Rae8 28.Nc5 Re6 29.Ne6 Be6 30.b7 1–0. Jamieson,Ian M – Morrow,Joseph, SCCA Premier, 2008.

6.Be2 a6 7.a4 =.

6.Be2 Nbd7 7.0–0 b6 8.c4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4 0–0 7.Be2 d6 8.0–0 Nbd7).

6.Be2 Nbd7 7.0–0 b6 8.Nd4 Bb7 9.f4 e5 10.Nf5 ef4 11.Qe1 fe3= 12.Qg3 g6 13.Qg5 Ne5?? 14.Ne7 Qe7 15.Qf6 Qf6 16.Rf6 ed2 17.Nd2 Nd7 18.Rf2+– Rae8 19.a4 Ne5 20.a5 Re7 21.Nc4 Nd7 22.Bd4 Re4 23.c3 Rfe8 24.ab6 ab6 25.Ra7 Rb8 26.Bf3 (26.Bf3 Re1 27.Rf1 Rf1 28.Kf1+–) 1–0. pcmvr (2800) – michelleke (2275), net–chess.com, 2007.

6.Be2 Nbd7 7.0–0 c6 8.a4 a5 (8...e5 9.c4=) 9.c4 c5 (9...cb5 10.ab5 b6 11.Nd4=) 10.d4 (10.Nc3 b6=) 10...b6 (10...cd4 11.Nd4 Qc7 12.Nd2=) 11.Nc3 (11.d5 Qc7+=) 11...Bb7 (11...cd4 12.ed4 Bb7 13.Nd2=) 12.Qd3 (12.d5 Ne5+=) 12...d5 (12...cd4 13.Qd4 Nc5 14.Qf4=) 13.Nd2 (13.cd5 Nd5 14.Nd5 Bd5+=) 13...e5 (13...cd4 14.Qd4 e5 15.Qd3+=) 14.Nd5 (14.de5 Ne5 15.Qf5 Bd6+=) 14...Nd5= 15.cd5 ed4 16.ed4 Bd5 17.Bf3 Bf3 18.Qf3 cd4 19.Bd4 (19.Nb3 Bd6+=) 19...Nf6 (19...Bf6 20.Bf6 Qf6 21.Qf6 Nf6 22.Nc4+=) 20.Nb3 Ra7 (20...Rc8 21.Rfd1 Qd6 22.Be3+/–) 21.Rfd1 (21.Qc6 Nd7+/–) 21...Qb8 (21...Rd7 22.Rd2+=) 22.Rac1 (22.Qc6 Rb7+/–) 22...Re8 (22...Rd7 23.Re1+=) 23.Rc6+/– Nd7 (23...Bd8 24.Rf1+/–) 24.g3 (24.Qg4 Bf8 25.Nd2+/–) 24...Bb4? (better is 24...Bf6+=) 25.Be3?? (better is 25.Bg7 Kg7 26.Rd7 Rd7 27.Qg4 Kf8 28.Qd7+–) 25...Ne5–/+ 26.Qg2 Nc6 27.bc6 Re3 28.fe3= Qe8 29.Qf3 Re7 30.Kf2 Re6 31.Ke2?? Rc6–+ 32.Nd4 Rd6 33.Qg4 Rg6 ½–½. Zoellner,Rainer (1840) – Steppan,Siegfried, Berlin, 2005.

4.e3 a5

5.c4 d5 (5...0–0 6.d4 (6.Nf3 d5 7.cd5 ed5 8.Be2 Re8 9.0–0 c5=) 6...Re8 7.Nf3 d5 8.Ba3 Nbd7 9.Be7 Re7=; 5...c6 6.d4 (6.Nc3 0–0 7.Nf3 cb5 8.Nb5 Nc6 9.Be2 d5=; 6.Nf3 0–0 7.Bf6 Bf6 8.d4 c5 9.Bd3 d5=) 6...cb5 7.cb5 0–0 8.Bd3 d5 9.Nf3 Re8=) 6.Nf3 (6.Nc3 Nbd7= (6...0–0 7.d4 c6 8.Nf3 Nbd7 9.c5 e5=) 7.d4 0–0 8.Qf3 dc4 9.Bc4 e5=; 6.d4 0–0 (6...Nbd7 7.Ba3 e5 8.cd5 Nd5 9.de5 Ba3=; 6...c6 7.Nf3 Bd7 8.a4 cb5 9.ab5 0–0=; 6...a4 7.Ba3 Ba3 8.Na3 0–0 9.Nf3 Qe7=) 7.Nf3 Nbd7 8.Ba3 c5 9.bc6 bc6=) 6...Nbd7 (6...a4 7.a3 (7.Be2+= 0–0 8.0–0 c6 9.Na3 Nbd7=) 7...Nbd7 8.d4 c6 9.Nc3 Qa5=; 6...0–0 7.cd5 ed5 8.Be2 c5 9.Qc2 Re8=) 7.Nc3 (7.cd5 ed5 8.Be2 0–0 9.Qc2 Bd6=) 7...0–0 (7...Nb6 8.cd5 ed5 9.d3 a4=) 8.cd5 (8.Qc2 Nb6 (8...g6= 9.cd5 ed5+=) 9.cd5 ed5=; 8.d4 c6 9.c5 e5=) 8...ed5 9.Be2 Bd6 (9...Nb6=) 10.h3 c5 (10...Nc5 11.Na4=) 11.0–0 (11.bc6 bc6 12.0–0 Ba6=) 11...b6 12.Qc2 (12.Qa4 Bb7=) 12...Bb7 13.Rac1 Rc8 14.Nh2 (14.Qf5 Qe7+=) 14...Re8 15.Ng4 (15.Na4 d4+=) 15...Bc7 (15...d4 16.Na4+=) 16.Nd1 (16.Bf3 Ng4 17.Bg4 d4+=) 16...h5 (16...d4 17.f4–/+) 17.Nf6+= Nf6 18.Bf6 Qf6 19.Bh5?? (better is 19.f4 g6 20.Bf3+=) 19...Qe5–+ 20.Bf7 Kf7 21.f4 Qh5 22.Nf2 Rcd8 23.g4? Qg6 24.Qc3 d4 25.ed4 Rd4 26.Nd3 Qd3 (26...Qd3 27.Qb3 Bd5 28.Qd3 Rd3–+) 0–1. Aubertin,Tim (1740) – Klicker,Fritz (2020), Saarlouis op 7th, 2004.

5.Nf3 d5 6.c4 c6 7.cd5 cd5 8.Be2 0–0 9.0–0 Nbd7 10.d4 Nb6 11.Nbd2 Bd7 12.a4 Rc8 13.Qb3 Ne8 (13...Bb4 14.Rfc1=) 14.Rfc1 Nd6 15.Rc8 Qc8 16.Rc1 Qb8 17.Ba3 Rc8 18.Rc8 Qc8 19.Ne5 Kf8 (19...Be8!?+=) 20.Bc5 (20.Nd7?! Nd7 (worse is 20...Qd7 21.Qc3+/–) 21.Nf3 Kg8+=) 20...Qc7?? (better is 20...f6+/–) 21.Bb6+– Qc1 22.Qd1 (22.Nf1 Be8+–) 22...Qd1 23.Bd1 Bb5 (23...Be8 24.Ba5 f6 25.Nd3+–) 24.ab5 Nb5 25.Ba5 1–0. Fournier,Frederic (1780) – Gibson,John (1940), FRA Coupe, 2003.

5.Nf3 d5 6.c4 c6 7.Be2 0–0 8.0–0 Nbd7 9.cd5 cd5 10.a4 b6 11.Nc3 Bb7 12.d4 Rc8 13.Qb3 Bb4 14.Rfc1 Qe7 15.Rc2 Rc7 16.Rac1 Rfc8 17.Na2 Bd6 18.Rc7 Rc7 19.Rc7 Bc7 20.Ba3 Qd8 21.Nc3 Ne4 22.Bd3 Ndf6 23.h3 Nc3 24.Qc3 Ne4 25.Qc2 h6 26.Ne5 Be5 27.de5 Qc8 (better is 27...Qh4!?+/–) 28.Qc8+– Bc8 29.Be4 de4 30.Bd6 Bb7 31.Bc7 Bd5 32.Bb6 Bb3 33.Ba5 Ba4 34.Bb6 ½–½. Fournier,Frederic – Lowenthal (2035), Active (5/0), 2004.

4.e3 a6

5.a4 0–0 6.Nf3 +=.

5.a4 ab5 6.ab5 Ra1 7.Ba1 0–0 8.c4 b6 9.Nc3 Bb7 10.Nf3 d5 11.Be2 Ne4 12.Ne4 de4 13.Ne5? Bd6 14.0–0 Qg5 15.f4= ef3 16.Nf3 Qh6 17.Be5?? Bf3–+ 18.Bd6 Be2 19.Qe2 cd6 20.d4 Nd7 21.Qf3 Ra8?? 22.Qc6?? Qe3–+ 23.Kh1 Ra2 24.Qd7–/+ h6 25.Qd6 Qe2 26.Rg1 Qc4 27.Qb6 Rd2 28.Qc5 Qd4 29.Qd4 Rd4 30.Rb1 Rd7 31.b6 Rb7 32.Kg1 Kf8 33.Kf2 Ke7 34.Ke3 Kd6 35.Kd4 Kc6 36.Rf1 Kb6 37.Ke5 Kc6 38.Rc1 Kd7 39.Rd1 Ke7 40.Rf1?? Rb5 41.Ke4 f5 42.Ke3 Kf6 43.h3 e5 44.g3 Rb3 45.Kf2 g5 46.Rc1 Rb2 47.Kg1 e4 48.Rc6 Ke5 49.Rh6 f4 50.gf4 gf4 51.Rh5 Kd4 52.Rh8 Ke3 53.Ra8 f3 54.Ra3 Kf4 55.Ra4 Kg3 56.h4 Rb1 0–1. poganinbezdom (1625) – fuszerdopotegi (1830), kurnik, 2011.

5.a4 ab5 6.ab5 Ra1 7.Ba1 0–0 8.c4 d5 9.Nf3 dc4 10.Bc4 Nbd7 11.0–0 Nb6 12.Be2 Bd7 13.d4 Qa8 14.Nbd2 h6 15.Qb3 Qa4 16.Bb2 Qb3 17.Nb3 Ra8 18.Ra1 Ra1 19.Ba1 Ne4 20.Ne5 Be8 21.f3 Nd6 22.Nc5 Bb5 23.Bb5= Nb5 24.Nb7 Nd6 25.Nc5 Ndc4 26.Nc4 Nc4 27.Kf2 Bc5 28.dc5 Na5 29.e4 Nc6 30.Ke3 f6 31.Kd3 Kf7 32.Kc4 Ke7 33.f4 Kd7 34.Bc3 e5 35.f5 Nd8 36.Kd5 c6 37.Kc4 Nf7 38.h4 h5 39.Ba5 Nh6 40.Kd3 Ng4 41.Ke2 Nh6 42.Kf3 Ng8 43.g4 hg4 44.Kg4 Ke8 45.Bd2 Ne7 46.h5 Kf7 47.h6 gh6 48.Bh6 Nc8 49.Kf3 Na7 50.Ke3 Nb5 51.Kd3 Nd4 52.Be3 Nf3 53.Bh6 Nd4 54.Be3 Nf3 55.Bh6 Nd4 ½–½. carocan (1675) – marzec24 (1705), kurnik, 2011.

5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.Nf3 Qa5 9.Bc3 Qa4 10.Bd3 cb5 11.Be5 Nc6 12.Nc3 Qg4 13.h3 Qg2 14.Rh2+– Ne5?? 15.Rg2 Nd3 16.cd3 0–0 17.Nb5 1–0. orane – GOODEVENING, caissa.com, 2006.

5.a4 ab5 6.ab5 Ra1 7.Ba1 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Be7).

5.a4 c6 6.f4 (6.Nf3 0–0=) 6...a5 (6...d5 7.Nf3+=) 7.Nf3= d6 (7...0–0 8.Be2=) 8.Be2+= Bd7 (8...0–0 9.Nc3=) 9.0–0 0–0 10.Nc3 b6 (10...Qc7 11.bc6 Bc6 12.Nd4+=) 11.d4 (11.Rb1 cb5 12.Nb5 Na6+=) 11...d5= 12.Ne5 Be8 (12...cb5 13.Nb5 Ne4 14.c4=) 13.f5 (13.Bd3 Qc7+=) 13...c5 (13...ef5 14.Rf5 Bb4 15.Bd3+=) 14.fe6 (14.Bf3 Qc7+=) 14...fe6 15.Bf3 (15.Ba3 Qc7=) 15...c4 (15...Bd6!?=) 16.e4+/– Kh8 (16...Ra7!?+/–) 17.ed5+– ed5 18.Nc4! Ra7 (18...dc4 Exploits the pin 19.Ba8) 19.Ne5 Rg8 (19...Rc7 20.Qd3+–) 20.Qd3 (better is 20.Qb1 Bb4 21.Qa2 Bc3 22.Bc3+–) 20...Nbd7?? (better is 20...Rf8+–) 21.Nc6 (21.Nd5?! Ne5 22.de5 Bg6+–; 21.Bd5?! Nd5 22.Nd5 Ne5 23.de5 Bg6+–) 21...Qb8 (21...Nc5 22.dc5 Bc6 23.bc6 Bc5 24.Kh1 Re7 25.Nd5 Nd5 26.Bd5 Rge8+–) 22.Nb8 Nb8 23.Nd5 Nd5 24.Bd5 Bg6 25.Qe2 Re8 26.Bf7 Bf7 27.Rf7 Kg8 28.Raf1 Rd7 29.Rg7! Kh8 30.Qe4 Kg7 31.d5 Kg8 32.Qe6 1–0. Taulien,H – NN, corr, 2003.

5.c4 ab5 6.cb5 0–0 7.Nc3 d5 8.Nf3 c5 9.a4 Bd7 10.Be2 Be8 11.0–0? Nbd7?? 12.d3 Nb6 13.Qb3 Qd7 14.Rfd1 h6 15.a5 Nc8 16.Ne5 Qc7 17.d4 c4 18.Qa4 b6 19.a6 Nd6 20.Ba3 Nh7 21.Bd6 Bd6 22.f4 f6 23.Nf3 Bg6 24.Rdc1 Rfc8 25.Nh4 Bf7 26.Qc2 Ra7 27.Rcb1 e5 28.de5 fe5 29.Ng6 e4 30.Bh5? Nf6–+ 31.g4 Ng4?? 32.Bg4+– Bg6 33.Nd5 Qb8? 34.Qd2 Rf8 35.Rc1 Kh8 36.Rc4 h5 37.Bh3 Bf7 38.Rac1 Bc5 39.Re4 Bd5?? 40.Qd5 Rf4 41.Rf4 Qf4 42.Rf1 Qe3+= 43.Kh1?? Re7?? 44.Qg2 (44.Qg2 Rc7 45.Qg3 Qg3 46.hg3+–; 44.Rf8 Kh7 45.Bf5 Kh6 46.Rh8 Kg5 47.Be6 Qe5 48.Qe5 Kg6 49.Qf5) 1–0. elsh1403 – cosminchess92, kurnik, 2011.

5.c4 ab5 6.cb5 c6 7.a4 cb5 8.ab5 Ra1 9.Ba1 Qa5 10.Bc3 Qa7 11.Qb3 0–0 12.d4 d5 13.Nf3 Bd7 14.Ne5 Rd8 15.Nd7 Nbd7 16.Bd3 Nb6 17.0–0 Qa4 18.Nd2 Qb3 19.Nb3 Rc8 20.Rc1 Na4 21.Bd2 Rc1 22.Nc1 Nb2 23.Be2 Ne4 24.Ba5 Nc4 25.Bc4 dc4 26.f3 Nd2?? 27.Kf2?? Nb3–+ 28.Nb3 cb3 29.Ke2?? b2 0–1. mihai740609 – januszpalikot, kurnik, 2011.

5.Nf3 0–0 6.Nc3 ab5 7.Bb5 d5 8.0–0 Bd7 (8...c6 9.Be2+=) 9.Be2= Ba3 (9...Nc6 10.Nb5=) 10.Ba3 Ra3 11.Qb1 b6 12.Qb4 Ra8 13.Rab1 (13.Qf4 c5=) 13...Na6 (13...Ne4 14.Ne4 Nc6 15.Qc3 de4 16.Ne1=) 14.Qf4 Nc5 15.d3 Ra3 16.Qb4 Qa8 17.Rb2 Qa7 (17...Qa5 18.Qa5 Ra5 19.d4=) 18.Ne5 Ra8 Now all is on a2 (better is 18...Qa5!? 19.Qa5 Ra5=) 19.Nd7+/– (19.Nd7 Ncd7 20.Nb5+/–) 1–0. Mrkvicka,Josef – Tomasini,Marco, CiF, 1993.

5.Nf3 ab5 6.Bb5 c6 7.Be2 d5 8.d4 Bd7 9.0–0 0–0 10.Re1 h6 11.h3 Qc8 12.Ne5 Bd6 13.Nd7 Nbd7 14.a4 Qc7 15.Nd2 e5 16.de5 Be5 17.Be5 Qe5 18.Nf3 Qc7 19.Qd4 Rae8 20.a5 Re4 21.Qd2 Rfe8 22.Bd3 R4e6 23.Nd4 Re5 24.Nf3 R5e7 25.Bf5 Nc5 26.Nd4 Nce4 27.Be4 Ne4 28.Qe2 Re5 29.Nf3 R5e6 30.a6 ba6 31.Ra6 Rg6 32.c4 Qc8–/+ 33.cd5? Qh3–+ 34.g3 Ng3! 35.fg3 Rg3 36.Kf2 Qg2 0–1. wojtekkk – juric27, kurnik, 2011.

5.Nf3 d6 6.d4 0–0 7.c4 ab5 8.cb5 c6 9.Bd3 h6 10.Nc3 Bd7 11.0–0 g5 12.a4 cb5 13.ab5 Ra1 14.Qa1 Ne8 15.d5 e5 16.Ne4 f5 17.Ne5 de5 18.Ng3 e4 19.Be2 Bf6 20.Nh5 Bb2 21.Qb2 Nf6 0–1. phildo (1810) – jimmiels (1765), gameknot.com, 2014.

4.e3 b6

5.c4 a6 6.a4 d6 7.Nf3 c6 8.Nc3 Bb7 9.Be2 Nbd7 10.0–0 0–0 11.d4 c5 12.Qb3 Ne4 13.Ne4 Be4 14.Nd2 Bb7 15.Rfd1 a5 16.Rac1 Rb8 17.Bf3 Ba8 18.h3 Nf6 19.Ba8 Ra8 20.dc5 dc5 21.Ne4 Qc7 22.Nf6 Bf6 23.Bf6 gf6 24.Rd3 Qe5 25.Rcd1 Kh8 26.Qa2 Qe4 27.f3 Qh4 28.Qf2 Qg5 29.f4 Qf5 30.Qf3 Rg8 31.g4 Qg6 32.Kf2 e5 33.f5 Qg5 34.Rd6 Qh4 35.Qg3+– Qg3 36.Kg3 Rab8 37.Rf6 Rgf8 38.Rdd6 Kg7 39.Rb6 Rb6 40.Rb6 Rd8 41.Rc6 Rd3 42.Kf3 Ra3 43.Rc5 Ra4 44.b6 Rb4 45.Rb5 Rb5 46.cb5 a4 47.b7 a3 48.b8Q a2 49.Qa7 a1R 50.Qa1 f6 51.g5! h6 52.gf6 Kf6+– 53.Ke4 Kg5 54.Qe5 Kh4 55.Qg7 Kh3 56.f6 h5 57.f7 h4 58.f8Q Kh2 59.Qfh8 h3 60.Qgg8 Kh1 61.Qh3 1–0. carocan (1730) – mathiasz, kurnik, 2011.

5.c4 Bb7 6.Nf3 c5 7.Be2 d5 8.0–0 Nbd7 9.a4 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7).

5.Qf3 c6 6.c4 d5+= 7.a4 0–0 8.Be2 Bb7 9.Qg3 Kh8 (9...Bd6 10.Qh4–/+) 10.f4 (10.Nf3 Bd6 11.Qh4 Nbd7=) 10...Rg8 (10...Nbd7!? 11.bc6 Bc6 12.cd5 Bd5+=) 11.Nf3= Ne4 12.Ne5 Qe8 13.Qh3 Nd7?? (better is 13...f6 14.Nf3 Nd7=) 14.bc6+– Ne5 15.cb7 Rb8 (15...Nc4 16.ba8R (worse is 16.ba8B Nb2 17.Bb7 Na4+–; 16.ba8N?! Nb2 17.Ra2 Bf6+/–) 16...Qa8 17.Bd4+–) 16.Be5 Rb7 17.0–0 (17.cd5 ed5 18.Ba6 Rb8+–) 17...f6 18.Bb2 Bb4 19.d3 Nc5 20.Bc3 (20.Bh5!? Qe7 21.cd5 ed5+–) 20...a5 21.Bb4 ab4 22.d4 Ne4 (22...Nb3 23.Ra2 Rc7 24.f5+–) 23.Bd3 f5 24.cd5 ed5 25.Qf5 Rd7 (25...Nf6 26.Rf3 Qc6 27.Nd2+–) 26.Bb5 Nd6 (26...Rf7 27.Qd5 Qe7+–) 27.Qd7 (27.Qd7 Qe3 28.Kh1+–; 27.Bd7? Qe3 28.Kh1 Nf5 29.Bf5 Qe2–+) 1–0. Dorozhkin,Oleg – Grachev,Vitaly, Anna RUS, Akulov Mem, 2012.

5.Nf3 0–0 6.c4 Bb7 7.Be2 d5 8.0–0 c5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5).

5.Nf3 a6 6.c4 ab5 7.cb5 c6 8.a4 cb5 9.ab5 Ra1 10.Ba1 d5 11.Be2 0–0 12.0–0 Nbd7 13.d4 Bb7 14.Nc3 Qa8 15.Qb3 Qa5 16.Bb2 Qb4 17.Qa2 Ra8 18.Qb1 Ne4 19.Ne4 de4 20.Ne1 Nf6 21.Nc2 Qb3 22.Na1 Qb4 23.Nc2 Qd6 24.Bc3 Nd5 25.Bd2 Qc7 26.Rc1 Qd8 27.h3 f5 28.Nb4 Nb4 29.Bb4 Bb4 30.Qb4 Qf8 31.Qb3 Bd5 32.Qc3 Qa3 33.Qc7 Rf8 34.Rf1 Qa5 35.Bc4?? Bc4?? 36.Qc4+/– Qa7? 37.Qe6+– Kh8 38.Rc1 Qb7 39.Rc6 Ra8 40.Rb6 Ra1 41.Kh2 Qc7 42.Qd6 Qd6 43.Rd6 Rb1 44.Rd8 1–0. elsh1403 – tomborell, kurnik, 2011.

5.Nf3 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7).

5.Nf3 Bb7 6.c4 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 b6 5.Nf3 Bb7 6.c4 Be7).

5.Nf3 d6 6.Nd4 Bb7 7.Nc3 0–0=+ 8.Be2 Qd7 9.Bf3 Bf3 10.Qf3 d5 11.0–0 Qd6 12.d3 Nbd7 13.Nce2 Ne5 14.Qg3 c5 15.Ne6 fe6 16.Be5 Qd7 17.a4 Rf7 18.f4 Raf8 19.Bc3 d4 20.ed4 cd4 21.Bd4+– Nd5 22.Qg4 Bf6 23.Bf6 Nf6 24.Qf3 Nd5 25.Qe4 Ne7 26.Nd4 Rf6 27.Rae1 Rg6 28.Ne6 Rc8 29.f5 Rf6 30.Ng7 Kg7 31.Qe7 Qe7 32.Re7 Kh6 33.c4 1–0. orane (1980) – robyn21, Caissa.com, 2004.

5.f4 Bb7 6.Nf3 0–0 (--> 5.f4 0–0 6.Nf3 Bb7).

5.f4 Bb7 6.Nf3 d6 7.Be2 0–0 8.0–0 Nbd7 9.Nd4 0–1. Kulbacki,James – Everett,Morgan, Monroe ch–MI op, 1986.

5.f4 Bb7 6.Nf3 d6 7.Be2 Nbd7 8.Nc3 0–0 9.0–0 c5 10.bc6 Bc6 11.Rb1 Nc5 12.Nd4 Bb7 13.Bf3 Nce4 14.Ne4 Ne4 15.d3 Nc5 16.Bb7 Nb7 17.Qg4 e5 18.Nc6 Qc7 19.fe5 Qc6 20.ed6 f6 21.de7 Rfe8?? 22.Rf6 Qc2 23.Rf8! Rf8 24.Qg7 1–0. ahaf – lonsy, internet, 2011.

5.f4 0–0

6.Nf3 Bb7

7.Be2 c5 8.0–0 d5 9.a4 a6 10.h3 ab5 11.ab5 Ra1 12.Ba1 Qd7 13.Ne5 Qe8 14.d3 Qb5 15.Nd2 Qe8 16.Ndf3 Nbd7 17.Qb1 Ne5 18.Ne5 Nd7 19.Nd7 Qd7 20.Qb6 Qc6 21.Qc6 Bc6 22.Rb1 Bf6 23.Bf6 gf6 24.Rb6 Rc8 25.Bf3 e5 26.f5 Kg7 27.g4 e4 28.Be2 ed3 29.cd3 Rc7 30.Kf2 d4? 31.e4 Ba4+/– 32.Ra6 Bb5 33.Ra5 Bd7 34.Bd1 Rb7? 35.Rc5+– Rb2 36.Rc2 Rc2 37.Bc2 Kh6 38.Bd1 Kg5 39.Kg3 Kh6 40.Bf3 Bc6 41.h4 Kg7 42.Kf2 Bb5 43.Ke2 h6 44.Kd2 Kf8 45.Kc2 Ke7 46.Be2 Kd6 47.Kb3 Ke5 48.Kb4 Ba6 49.Kc5 Bb7 50.Bd1 Ba6 51.Bb3?? Bd3–+ 52.Bf7 Be4 53.Bb3 d3 54.Kc4 d2 55.Kc3 Kf4 56.Kd2 Kg4 57.Ke3 Bf5 58.Kd4 Kh4 59.Ke3 Kg4 60.Kf2 Kg5 61.Kg3 h5 62.Bd1 h4 63.Kh2 Kf4 64.Kg2 Ke3 65.Bh5 Be4 66.Kh3 Bf5 67.Kh2?? h3 68.Bd1 Kf2 69.Bb3 Bd7 70.Bd5 f5 71.Bb7?? f4 72.Bd5 f3 73.Be4 Ke2 74.Bb7 1–0. elsh1403 – sulfurico, kurnik, 2011.

7.Be2 c6 8.c4 cb5 9.cb5 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 d5 13.0–0 Nbd7 14.Ne5 Nc5 15.d4 Nce4 16.Nd2 Nd2 17.Qd2 Ne4 18.Qc2 f6 19.Nc6 Bc6 20.bc6 Qc7 21.Rc1 f5 22.Qa4 Rb8 23.Bc3 b5 24.Bb5+/– Nd6 25.Ba6 g5?? 26.Ba5+– Qa7 27.Be2 gf4? 28.ef4 Ra8 29.c7 Qa5?? 30.c8Q! (30.c8Q Nc8 31.Rc8 Kg7 32.Ra8 Qe1 33.Bf1 Qe3 34.Kh1 Qf4 35.Qd1+–) 1–0. elsh1403 (1650) – arlind60, kurnik, 2011.

7.Be2 d5 8.c4 c5 9.cd5 Nd5 10.0–0 Nd7 11.Nc3= Nc3 12.dc3 Qc7 13.c4 Rad8 14.Qc2 h6 15.Bd3 Bf6 16.Bf6 Nf6 17.Ne5 Nd7= 18.Nf3 f5 19.Rad1+= Nf6 20.Ne5 Nd7 21.Nf3 (21.Nd7 Rd7 22.Rf2 Rfd8=) ½–½. Waibel,Ulrich – Becker,Zeevi, compuserve, 1995.

7.Be2 h6 8.Nc3 c6 9.a4 d5 10.0–0 Nbd7 11.Nd4 c5=+ 12.Nc6 Bc6 13.bc6 Nb8 14.c7 Qc7 15.Qe1 a6 16.Bf3 Nc6 17.Qg3 Rad8 18.Ne2 Nb4 19.Be5 Qd7 20.Rab1 b5 21.ab5 ab5 22.Rb2 Ra8 23.d4 Nc6 24.dc5 Ne5 25.fe5 Ne8 26.c6 Qc6 27.Nd4 Qc3 28.Rb3 Qc4 29.Be2+= Qc7 30.Bb5 Bc5 31.Bd3 Rb8 32.Rbb1 Bd4 33.ed4 f5? 34.Qg6+– Rb1? 35.Qe6 Kh8 36.Rb1 Qc3 37.Qd5 Nc7 38.Qd7 1–0. usingprogram (1985) – ibushi56, kurnik, 2011.

7.Be2 a6

8.0–0 ab5 9.Bb5 Nc6 =+.

8.c4 ab5 9.cb5 d6 10.0–0 Nbd7 11.a4 Re8 12.Nc3 Bf8 13.Nd4 g6 14.Bf3 Bf3 15.Qf3 Bg7 16.Nc6 Qc8 17.g4 Nc5 18.h4 Nd3 19.Ba3 Nc5 20.Bc1 Nd3 21.Ba3 e5 22.f5 e4 23.Qe2 Ne5 24.g5 Nf3 25.Rf3 ef3 26.Qf3 Nh5 27.f6 Bf8 28.Nd5 Kh8 29.Bb2 Re5?? 30.Ne5+– de5 31.Be5 Qd8 32.Nc7 Rc8 33.d4 Rc7 34.Bc7 Qc7 35.Qa8 Qg3 36.Kf1 Kg8 37.Qe4 Qh3 38.Ke2?? Ng3–+ (38...Ng3 39.Kd3 Ne4–+) 0–1. elsh1403 – zbysio3 (1645), kurnik, 2011.

8.a4 ab5

9.ab5 Ra1 10.Ba1 d6 11.0–0 Nbd7 12.c4 Qa8 13.Nc3 e5 14.fe5+= de5 15.Qc2 Bd6 16.Bb2 Qe8 17.Ng5 e4= 18.Nd5 Bd5 19.cd5= h6 20.Bf6+= Nf6 21.Rf6 gf6 22.Ne4 Qe5 23.Nd6 Qd6 24.Qc4 Ra8 25.g3 Qc5 26.Qg4 Kf8 27.Qh4 Ra1 28.Kf2 Qd5 29.Qh6 Kg8 30.Qf4 Rc1 31.e4 Qg5 32.h4 Qf4 33.gf4+= Rh1 34.Kg3 f5 35.e5 Kg7 36.d4+= Rb1 37.Kf2 Rb3 38.Bf1 Rc3 39.Be2 Rb3 40.Bf1 Ra3 41.Be2 Rh3 42.h5+/– Rc3 43.Bf1 Rb3 44.Be2 Rb4 45.Ke3+/– Kh6 46.d5 Re4 47.Kd3 Kg7 (48.d6 cd6 49.ed6 Re6=). Muri,H – Bouverot,O, Coppa Latina5–04, 1995.

9.ab5 Ra1 10.Ba1 d6 11.0–0 Nbd7 12.c4 d5 13.Nc3 =.

9.ab5 Ra1 10.Ba1 d6 11.0–0 Nbd7 12.Bd4 c6 =.

9.ab5 Ra1 10.Ba1 d6 11.0–0 Nbd7 12.Nd4 Qa8–/+ 13.Bb2 Bg2 14.Bf3 Bf3 15.Rf3 Nb8 16.d3 c5 17.bc6 Nc6 18.c4 d5 19.Rf2 Rd8 20.cd5 Nd5 (21.Qe2 Bc5 22.Nc6 Qc6–+; 20...ed5?! 21.Nf5 Qb7 22.Rg2=) 0–1. Dupont,G – Petkov,V, DDR–Cup corr, 1990.

9.ab5 Ra1 10.Ba1 Ne4 11.0–0 =.

7.Be2 d6

8.0–0 Nbd7

9.a4 a5? 10.Nd4! Rc8 11.Bf3 d5 12.c4 c5 13.Ne2 Rc7 14.Na3 Ne4 15.d3 Bf6 16.Bf6 Ndf6! 17.g4! Nd6 18.g5 Nd7 19.Ng3 Re8 20.h4 Nf8 21.Qe2 f5 22.Rad1 Qe7 23.Qg2! d4 24.Bb7 Nb7 25.e4 Nd6 26.Rde1 Qd7 27.h5! Rcc8 28.Nb1 Qf7 29.Nd2 Qb7 30.Nf3 fe4 31.Ne4 Nf5 32.Ne5 Qc7 33.Nf6! gf6 34.gf6 Kh8 35.f7! Nh6 36.fe8Q Re8 37.Qg5 Qg7 38.Kh2 Nf5 39.Rg1 Re7 40.Qg7 Ng7 41.Rg5 h6 42.Ng6 Ng6 43.Rg6 Kh7 44.f5! 1–0. Schiffler – Klein, Binz/Ruegen 1950.

9.c4 c5 10.d3 d5 11.Nc3 Qc7 12.e4 Qf4 13.ed5 ed5 14.cd5 Nd5 15.Nd5 Bd5 16.d4 Bd6 17.Ne5 Qe3 18.Kh1 Nf6 19.Bc4 Bb7 20.Nf7 Rf7 21.Rf6 Bg2 22.Kg2 Qg5 23.Kh1 Qf6 24.dc5 Qb2 25.Bf7 1–0. Svensson – Kempe, corr SSKK lag–SM 1990 div. II bord 4 1990–91.

9.Nd4 Nc5 10.a4 Rc8 11.c4 a5 12.d3 Ne8 13.Nd2 Bf6 14.Bf3 d5 15.Qe2 Nd6 16.cd5 ed5 17.g4 Re8 18.g5 Bd4 19.Bd4 Ne6 20.Be5 Rb8 21.Bg4 Nf8 22.Rf3 Ng6 23.Bb2 Bc8 24.Bh5 Nf5 25.Nf1 Qd6 26.Ng3 Ngh4 27.Rf2 Re3 28.Nf5 Nf5 29.Qc2 d4 30.Ba3 Qa3 31.Ra3 Re1 32.Kg2 Ne3 33.Kg3 Rg1 34.Kh4 Nc2 35.Rc2 Bf5 36.Re2 g6 37.Bf3 Be6 38.h3 Kg7 39.Rg2 Rc1 40.Rf2 Rd8 0–1. Kucharkowski – Hannebauer, 1983.

4.e3 c5

5.c4 0–0+= 6.Nc3 d5 7.Qb3 (7.d4 Nbd7+=) 7...d4–/+ 8.Nce2 e5 9.Nf3 (9.Ng3 Nbd7–/+) 9...Bd6 10.Ng3 h6 (10...e4 11.Ng5 Re8 12.f3 ef3 13.gf3–/+) 11.a4 (11.Bd3!?+=) 11...e4–/+ 12.Nh4 Be5 13.ed4 cd4 14.Ngf5 Kh7 (14...Be6 15.f4 Bf4 16.Nd4–/+) 15.Ba3 (15.f4 Bf4 16.Nd4 Re8–/+) 15...Re8 16.c5 Be6 17.Bc4 Ng4 (better is 17...g5!? 18.Be6 fe6–+) 18.h3–/+ Nf2 (18...Nh2!?–/+) 19.Kf2= Qg5 20.Rhf1 d3 21.Rae1 (21.Rac1 Bf5 22.Nf5 Qf5 23.Kg1 Bd4 24.Kh1+=) 21...Bh2 (21...Bf5 22.Nf5 Qf5 23.Kg1 Qd7 24.Rf7 Qd4 25.Kh1 Rd8+/–) 22.Re4?? (better is 22.Re3 Bf5 23.Nf5 Qf5 24.Ke1=) 22…Bf5–+ (22...Bf5 23.Bd3 Qg3 24.Ke2 Be4–+) 0–1. Zylla,Johannes – Karges, BSF–Pokal, 1995.

5.c4 0–0 6.Nf3 d5 7.a4 b6 8.Be2 a5 9.0–0 Nbd7 10.d3 Bb7 11.Nbd2 Qc7 12.Qc2 Ng4 13.h3 Nge5 14.Ne5+= Ne5 15.e4 dc4 16.dc4 Ng6 17.g3 f5 18.ef5 ef5 19.Bf3 Bf3 20.Nf3 Bf6 ½–½. Melich,Jindrich (2160) – Sladek,Jaroslav (2560), Klatovy, 1999.

5.c4 b6 6.Nf3= h6 (6...0–0 7.Be2=) 7.Be2 d6 (7...0–0 8.0–0+=) 8.0–0 e5 (8...a6 9.Nc3+=) 9.d3 (9.Nc3+=) 9...Nh7 (9...a6 10.ba6 0–0 11.d4 cd4 12.ed4=) 10.e4 (10.Nc3 0–0+/–) 10...Nd7 (10...0–0 11.Nc3+=) 11.Nc3 Ndf6 (11...Nhf6 12.Nd5+=) 12.h3 (12.Nd5 Nd5 13.cd5 a6+=) 12...0–0+= 13.Qc2 (13.Nd5 Nd5 14.cd5 a6=) 13...Ne8 (13...a6 14.ba6 Ra6 15.Rfb1+=) 14.Nd5 Bg5 (14...Nhf6!?+=) 15.Ng5+/– Ng5 16.f4 Nh7? (better is 16...ef4!? 17.a3 a6+/–) 17.fe5+– de5 18.Be5 f6 (18...Bh3 19.Bg7! Qg5 20.Nf4 Ng7 21.Nh3 Qe3 22.Kh2+/–) 19.Bc3 (19.Bf4 a6+–) 19...Be6 (19...a6 20.ba6 Nd6 21.Rab1 Ra6 22.Qb3+–) 20.Nf4 (20.d4 cd4 21.Bd4 Rc8+–) 20...Bf7 (20...Nc7 21.Ne6 Ne6 22.Bg4+–) 21.Rf3 (21.Nd5 Be6 22.d4 cd4 23.Bd4 Rc8+–) 21...g5 (21...Ng5!? 22.Rf2 a6+–) 22.Rg3 (22.Nd5 a6+–) 22...Qd6 (22...a6+–) 23.Rf1+/– Kh8 (23...Ng7 24.e5 fe5=) 24.Nd5?? (24.e5 fe5 25.Re3+–) 24...Qg3–+ 25.Ne7 (25.Rf3 Qd6–+) 25...Qc7 26.Nf5 Bg6 27.Nh6–/+ Qe7 28.Bf3 Rd8 29.Qe2 Ng7 30.Re1 Qc7 31.a4 Ne6 32.Bh5?? Nf4 (32...Nf4 33.Bg6 Ne2 (33...Ng6?! 34.Nf5–+) 34.Re2 Rd3–+) 0–1. Dopper,Johan – Bloom,Aad, 1992.

5.c4 d5 6.Nf3 +=.

5.Nf3 0–0 6.Be2 Qb6 (6...d5 7.0–0=) 7.a4 a5 8.d4 d5 9.c4 Ne4 (9...Rd8 10.dc5 Bc5 11.Bf6 gf6 12.0–0+=) 10.cd5+= ed5 11.dc5 Nc5 (11...Qg6!? 12.Qd5 Rd8+=) 12.Nc3+/– Qd8 (12...Be6 13.Nd5 Bd5 14.Qd5+/–) 13.Nd5+– Ne4? (better is 13...Bd6+–) 14.Ne7 Qe7 15.Ba3 Nc5 (15...Qd8 16.Bf8 Qf8 17.Rc1+–) 16.Qd5 Qf6 (16...Nbd7 17.Rc1 Qe6 18.Qe6 Ne6 19.Bf8 Kf8 20.Bd1+–) 17.Rc1 (17.Qc5?! Qa1 18.Qc1 Qc1 19.Bc1 Bg4=) 17...Nbd7 18.Bc5 (18.Rc5?! Qa1 19.Bc1 Nc5 20.Qc5 Qa4+–) 18...Qb2 (18...Nc5 19.Qc5 Be6 20.Qd4+–) 19.Qd2 Qd2 20.Nd2 Nc5 21.Rc5 b6 (21...Be6 22.Rc7 b6 23.Nc4 Bc4 24.Bc4+–) 22.Rc6 1–0. Jung,Michael – Gurdan,Christof, DESC, 2000.

5.Nf3 a6 6.Be2 d5 7.0–0 0–0 8.a4 c4 (8...Nbd7 9.d3=) 9.Nc3 Bb4 10.d3 (better is 10.Qe1=) 10...Bc3 (better is 10...Qa5 11.Nb1 c3+=) 11.Bc3+/– ab5 (11...cd3 12.Bd3 Nbd7 13.Qb1+=) 12.ab5 Ra1 13.Qa1 Bd7? (better is 13...cd3 14.cd3 Nbd7+/–) 14.dc4+– Ne4?! (14...dc4 15.Bc4 Qe7+–) 15.Bg7 Re8 16.Qd4 f6 17.Bh6 Qe7 18.cd5 ed5 19.Qd5 Qe6 20.Qb7 f5 21.Bf4 Nc3 22.Nd4 Ne2 23.Ne2 Qc4 24.Nd4 Be6 25.Bb8 Bd5 26.Qc7 Qb4 27.Nf5 Qf8 28.Qg3 Kf7 29.Nd6 Ke7 30.Qg5 Ke6 31.Ne8 Qe8 32.Qe5 Kf7 33.Qd5 (33.Qd5 Ke7 34.Bd6 Kf6 35.b6+–) 1–0. Bonetti,Shane – guest1056, ICC, 2002.

5.Nf3 b6 6.c4 Bb7 7.a4 d6 8.Be2 a5 9.0–0 Nbd7 10.d4 Qc7 11.Nbd2 0–0 12.Rc1 Rfe8 13.dc5 Nc5 14.Nb3 Na4–/+ 15.Nbd4? Nb2–+ (15...Nb2 16.Qc2 e5–+) 0–1. elsh1403 – newinchess, kurnik, 2011.

5.Nf3 d5 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 c5).

4.e3 c6

5.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 Be7 5.e3).

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

5.c4 0–0 6.Nc3 a6 7.a4 cb5 8.ab5 Nc6?? (better is 8...d5=) 9.bc6+– dc6 10.Nf3 b5 11.cb5 ab5 (11...cb5 12.Nb5! Bb7+–) 12.Ra8 Qc7 13.Ra1 Bd6 14.Be2 Bb7 15.h3 c5 (15...b4 16.Na4 e5 17.d4 ed4 18.Nd4+–) 16.d4 (better is 16.Nb5!? Qe7+–) 16...cd4 17.Nd4 (17.Nb5 Bb4 18.Kf1 Qe7 19.Qd4 Ra8+–) 17...Bc5 (17...Bg2 18.Rg1 Bb4 19.Rg2 Bc3 20.Bc3 Qc3 21.Kf1+–) 18.Ndb5 Qc6 19.Ba3 (better is 19.Bf3 Qb6+–) 19...Qg2 20.Bc5 Qh1 (20...Qh1 21.Kd2 Rd8 22.Kc2 Be4 23.Bd3 Bd3 24.Qd3 Rd3 25.Rh1 Rd7+–). elefante22 – Fournier,Frederic, Active Blind, 2008.

5.c4 0–0 6.Nf3 d5 7.a4 b6 8.Be2 c5 9.0–0 Nbd7 10.d4 Bb7 11.Nbd2 h6 12.h3 Nh7 13.Qb3 f5 14.Ne5 Ne5= 15.de5 Qc7 16.f4 Kh8 17.Rad1 Rfd8 18.Nb1 Rd7 19.Rd2 Rad8= 20.Rfd1 Qc8 21.Kh2 Qa8 22.Qc2 g6 23.Bf1 Nf8 24.cd5 Rd5 25.Nc3 Rd2 26.Rd2 Kg8 27.Bc4 Kf7 28.Bd3 Qc8 29.Nd1 a6 30.Bc1 ab5 31.ab5 Qa8 32.Nb2 Bd5 33.Nc4 Bc4 34.Bc4+= Rd2 35.Bd2 h5 36.Bc3 Qa3 37.Bd3 Qa8 38.e4 c4 39.Bc4 Qe4 40.Qe4 fe4 41.Bd4 Nd7 42.g4 hg4 43.hg4 Bc5 44.Bc5 Nc5 45.Kg3+/– Ke7 46.Kf2 Nd7 47.Ke3+– Nc5 48.Kd4 g5 49.f5 ef5 50.gf5 g4 51.f6 Kf8? 52.e6 Ke8?? 53.Bd5+– Kf8 54.e7 Ke8 55.Bc6 Nd7 56.Ke4 (56...Kf7 57.Bd7 Kg6 58.e8Q Kf6 59.Qf8 Kg6 60.Bf5 Kg5 61.Qg7 Kh5 62.Qg4 Kh6 63.Qg6#) 1–0. Danek,Vaclav – Voracek,Miroslav, Klatovy op–B, 1996.

5.c4 a6 6.a4 cb5 7.cb5 ab5 8.ab5 Ra1 9.Ba1 d5 10.Nc3 Nbd7 11.Nf3 0–0 12.Be2 Nc5 13.0–0 b6 14.d4 Nce4 15.Ne4 Ne4 16.Nd2 Nd6 17.Qb3 h6 18.Bb2 Bd7 19.h3 Qe8 20.Ba3 Nc8 21.Rb1 Ba3 22.Qa3 Nd6?? 23.Qa6 Nc4?? 24.Nc4 dc4 25.Bc4 Bc8? 26.Qb6 Qd7 27.Qc6 Qa7 28.b6 Qb7 29.Qb7 Bb7 30.Ra1 Rb8 31.Kf1 Bd5 32.Bd5 ed5 33.Rb1 Kf8 34.Ke2 Ke7 35.f3 Kd6 36.e4 de4 37.fe4 f6 38.Ke3 Kc6 39.Kf4 g6 40.g4 Kb7 41.h4 Rd8 42.d5 Rd6 43.g5 hg5 44.hg5 fg5 45.Kg5 Kb8 46.Kf4 Kb7 47.Ke5 Rd7 48.d6 g5 49.Kf5 Rd6 50.Kg5 Rb6 51.Rb6 Kb6 52.Kf6 Kc7 53.Kf7 Kd6= 54.Kf6 Kd7?? 55.e5+– Ke8 56.Ke6 Kf8 57.Kd7 Kf7 58.e6 Kf6 59.e7 Kf5 60.e8Q Kf6 61.Qe7 Kf5 62.Qe6 (62.Qe6 Kf4 63.Kd6 Kf3 64.Qe1 Kf4 65.Qe5 Kf3 66.Kd5 Kg2 67.Ke4 Kg1 68.Kf3 Kh1 69.Kg3 Kg1 70.Qe1) 1–0. elsh1403 – bledula, kurnik, 2011.

5.c4 cb5 6.cb5 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 0–0 10.Nf3 Qb6 11.Nc3 d5 12.Be2 Ne4 13.0–0 Nc3 14.Bc3 Nd7 15.d4 Nf6 16.Ne5 Ne4 17.Bb2 Bd6 18.f3 Be5 19.fe4 Bf6 20.e5 Bg5 21.Qd3 Bd7 22.Ba3 Ra8 23.Bc5 Qa5 24.e4 b6 25.Bd6 de4?? 26.Qe4+/– Bb5?? 27.Bb5+– Rd8 28.Bd3 g6 29.Qg4 Bh6 30.Qh4 Bg7 31.Qd8 Bf8 32.Qf8 1–0. elsh1403 – pako1, kurnik, 2011.

5.c4 cb5 6.cb5 b6 7.Nf3 Bb7 8.Nc3 0–0 9.Be2 d6 10.0–0 Nbd7 11.d4 Rc8 12.Qa4 Qc7 13.Rfc1 (13.Qa7?? Ra8 14.Qa8 Ra8–+) 13...Qb8 14.Nd2 Nd5 15.Nd5 Bd5 16.e4 Ba8 17.Ba3 Bg5 18.Nc4 (better is 18.Rc6 Bd2 19.Bd6=) 18...Bc1–/+ 19.Rc1 Be4 20.Qb3 (20.Re1 d5 21.Nd6 Bc2–+) 20...d5 21.Qe3 (better is 21.Bf8 Nf8 22.Qe3–+) 21...Rc4?? (21...Rfd8 22.Nd6 Rc1 23.Qc1 Nf6–+) 22.Bc4= Rc8 23.Bf1 Rc1 24.Qc1 Nf6 25.Qc6 Ne8 26.Qd7 Bg6 27.Be7 Nf6 28.Qc6 Ne8 29.a4 h6 30.Bb4 Kh7 31.a5 Qd8 32.a6 Qb8 (32...Qh4!? 33.Qe8 Qd4=) 33.g3 Bf5? (33...Qd8 34.Be2 Qg5=) 34.Qb7+– Qc7 35.Qc7 Nc7 36.Bd6 Na8 37.Bb8 Bc2 38.Ba7 Kg6 39.Bb8 Kf5 (39...f6 40.a7+–) 40.f3 h5 41.Kf2 g5 (41...Kg6 42.f4+–) 42.Ke3 f6 (42...Kg6 43.Be2+–) 43.Kd2 Ba4 (43...Bb1 44.Kc1 Be4+–) 44.Bd3# 1–0. Mikhaylov,Dimitri (1850) – Shevchuk,Vladimir, St Petersburg RUS, Chigorin Mem, 2012.

5.Nf3 cb5 6.Bb5 a6 7.Be2 b5 8.0–0 d5 9.a4 b4 10.c3 bc3 11.Nc3 Ne4 (11...Nc6 12.d4=) 12.Ne4 de4 13.Qb1 ef3? (better is 13...Bb7 14.Ne1 Bd5+=) 14.Bf3+– 0–0 15.Ba8 Nd7 16.d4 Nf6 17.Rc1 Qd6 (17...Bd6 18.Ba3+–) 18.Bc6 Bd7 (18...Ng4 19.g3 Qd8+–) 19.Ba3 (19.Ba3 Qa3 20.Ra3 Ba3 21.Rc2 Bc6 22.Rc6+–) 1–0. Bonetti,Shane – varenne, ICC, 2002.

5.Nf3 Qb6 6.a4 0–0 7.a5 (7.Be2 d6=) 7...Qd8 8.c4 d5 9.d4 (9.Nc3 dc4 10.Bc4 cb5 11.Nb5 Nc6+=) 9...cb5 10.cb5 a6 (10...Bb4 11.Bc3 Bd6 12.Bd3=) 11.b6= Nc6 12.Be2 Bb4 13.Bc3 Bd6 14.Nbd2 Bd7 15.Ne5 Rc8 16.Qb3 Qe7 17.Nd7 (17.0–0 Rfe8=) 17...Qd7 18.0–0 h6 19.Rfe1 Nh7 (19...Rfe8 20.Rac1=) 20.e4+= de4 21.Ne4 Be7 22.Rad1 Nf6 23.Bf3 (23.Nc5 Qd5 24.Bc4 Qd6+–) 23...Rcd8 The pressure on the isolated pawn grows (better is 23...Nd5!?+=) 24.Nf6+/– Bf6 25.d5 ed5 26.Rd5 Qc8 27.Bf6 gf6 28.Rc5 (28.Qe3 Rde8 29.Be4 Qg4+–) 28...Rfe8 29.Re3 Re3 30.Qe3 Re8 (30...Kg7 31.Bd5+–) 31.Qc3 (better is 31.Qc1!?+–) 31...Qe6+/– 32.g3 Nd8 (32...Qe1 33.Qe1 Re1 34.Kg2+–) 33.Kg2 Kg7 34.Rc8 Kf8 35.Qc7 Qe7 36.Rb8 Ne6 37.Qe7 (37.Qe7 Ke7 38.Rb7 Kd6 39.Rf7+–) 1–0. Hartmann,A – Radloff,A, corr DDR, 1990.

5.Nf3 d5 6.Ne5 =.

5.Nf3 0–0

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

6.Nc3 d5 7.g3 (7.Be2 cb5 8.Nb5 a6+=) 7...a6+= 8.a4 ab5 =. Plath – Zimmer, corr SOK–89–39, 1989.

6.Nc3 d6 7.Bc4 cb5+= (7...Qc7 8.0–0 a6 (8...d5 9.Be2 Nbd7 10.Rb1 Rb8 11.d4 e5 12.Ne5 Ne5) 9.a4 cb5 10.Bd3 b4 11.Ne4 Ne4 12.Be4 Nd7) 8.Bb5 a6 (8...e5 9.0–0+= (9.Qe2 a6 10.Ba4 Nbd7 11.0–0 Nc5 12.Bb3 Bd7) 9...Nc6 10.Qe2 a6 11.Ba4 Bd7 12.Rab1 Qa5; 8...Qb6 9.Rb1 Nc6 10.0–0 e5 11.Bd3 Qa5 12.e4 Be6; 8...Nc6 9.0–0 e5 10.Qe2 a6 11.Ba4 h6 12.h3 Bd7; 8...Bd7 9.0–0 Nc6 10.Qe2 d5 11.Bd3 Qa5 12.Rfe1 a6; 8...Qa5 9.0–0 Nc6 10.Qe2 Bd7 11.h3 a6 12.Ba4 b5; 8...d5 9.0–0 Nc6 10.h3 Bd7 11.Qe2 h6 12.a4 Qc7; 8...Na6 9.0–0 Bd7 10.h3 Bb5 11.Nb5 Nc5 12.c4 a6) 9.Be2 (9.Bd3 b5+= (9...Nbd7 10.0–0 Nc5 11.Be2 Bd7 12.d4 Nce4) 10.a4 b4 11.Ne4 Nc6 12.0–0 d5; 9.Bc4 d5 10.Bb3 Nc6 11.0–0 Bd7 12.Ne2 Ne4) 9...Nc6 (9...b5 10.0–0+= Bb7 11.Nd4 b4 12.Na4 Qa5) 10.0–0 (10.a4 d5+= (10...e5 11.0–0 e4 12.Ng5 d5) 11.0–0 e5 12.d4 e4) 10...d5 (10...b5 11.a3+= (11.Bd3 Nb4 12.Be2 Nc6) 11...Bb7 12.Bd3 d5; 10...Bd7 11.h3 d5 12.Bd3 Qc7) 11.Rb1 (11.a4 e5+= (11...Bd7 12.h3 h6) 12.d4 e4; 11.h3 Bd7 12.Bd3 Qc7) 11...Ne4 (11...e5 12.a4+= (12.d4 e4) 12...d4; 11...Bd7 12.Bd3 Qc7) 12.d3 (12.Ne4 de4 13.Nd4 Nd4 14.Bd4 Qa5=) 12...Nc3 (12...Nf6 13.a3+=) 13.Bc3= Bf6 (13...b5 14.Nd4 Qc7 15.Nc6 Qc6 16.Bd4=) 14.d4 (14.Bf6 Qf6 15.d4 Rd8=) 14...b5 15.Qd2 (15.Bd3 Qc7=) 15...Bd7 (15...Be7 16.Bd3=) 16.Bb4 (better is 16.a4 ba4 17.Ra1=) 16...a5?? (better is 16...Nb4 17.Qb4 Be7+=) 17.Bc5?? (better is 17.Bf8 Qf8 18.Bb5+– (worse is 18.Rb5 Nb4+–)) 17...Ne7 (17...Be7 18.Be7 Qe7 19.Bb5+/–) 18.Bb5 Bb5 19.Rb5 Re8 (19...Qc7 20.Rfb1 Rfb8 21.a3+/–) 20.Rfb1 a4 21.Rb7 Nc6+/– 22.Bb6 Qc8?? 23.Rc7+– Qb8 24.Rc6 a3 25.Rb3 Be7 26.Bc5 Qd8 27.Be7 Qe7 28.Qc3 Qd7 29.Ne5 Qa7 30.Rc7 Qa6 31.Rbb7 Rf8 32.Nf7 Qe2 33.h3 Qd1 34.Kh2 Qe2 35.Nh6! gh6 36.Rg7 (36.Rg7 Kh8 37.Rh7 Kg8 38.Rbg7) 1–0. Pscheidl,Udo (1780) – Klebe,Dieter (1755), RSS7E easy–106, 2010.

6.c4 a6 7.ba6 Na6 8.Be2 d5 9.cd5 ed5 10.0–0 Nc7 11.d4 Ne6 12.Nc3 h6 13.h3 b6 14.Ne5 Bb7 15.Ng4 Ng4 16.Bg4 Bd6 17.a4 f5 18.Bh5 Qf6 19.Ne2 g6 20.Bf3 Ng5 21.Ng3 Ba6–/+ 22.Be2 Be2 23.Ne2=+ Rfe8 24.Qc2 Rac8 25.a5= ba5 26.Ra5 Ra8 27.Ra8 Ra8 28.f4 Ne4 29.Qc6 Rb8 30.Qd5+/– Kg7 31.Qa2 Qe7 32.d5 Kf7 33.Be5! Rb7 34.Nd4 Ra7 35.Qc2 Rc7 36.Nc6 Qd7 37.Ra1 Rb7 38.Ra8 Rc7 39.Qa2 1–0. gtate (1970) – alexp (2135), net–chess.com, 2007.

6.Be2 a6 7.a4 a5 (7...d5 8.0–0=) 8.0–0 Ne4 (8...d6 9.Nc3=) 9.d3+= Nc5 10.c4 d5 11.d4 Ne4 12.Nc3 Nc3 13.Bc3 c5 (13...cb5!? 14.cb5 Bd6+=) 14.dc5+/– Bc5 15.cd5 ed5 (15...Qd5 16.Qd5 ed5 17.Rac1+/–) 16.Rc1 Ba3 (16...Qd6 17.Be5 Qb6 18.Bd4 Bd4 19.Qd4 (worse is 19.ed4 Bf5+=) 19...Qd4 20.Nd4+/–) 17.Qd4 f6 18.Rcd1 Be7 (better is 18...Re8!?+–) 19.Bc4! dc4 20.Qc4 Kh8 21.Rd8 Rd8 22.Qf7 Bg4 (22...Bb4 23.Bf6! Rg8+–) 23.Qe7 Nd7 24.h3 Bf5 (24...Re8 25.Qd6 Bf3 26.gf3+–) 25.Nd4 Ne5 (25...Re8 26.Qd6 Bd3 27.Qd7 Bf1+–) 26.Nf5 Ng6 27.Qg7 1–0. Woschkat,Karl_Heinz – Graefe,Hartmut, CiF, 2002.

6.Be2 cb5 7.Bb5 d5 8.0–0 +=.

4.e3 d5

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7).

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

5.Nf3 0–0 6.c4 c5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0).

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

5.Nf3 Bd7 6.c4 c6 7.a4 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 Bd7).

5.Nf3 Nbd7 6.Be2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 Nbd7).

4.e3 d6

5.Be2 a6 6.ba6 Na6 7.Nf3 +=.

5.Be2 Nbd7 6.c4 (6.Nf3 0–0=) 6...0–0 7.Nf3 Nb6 (7...a6 8.ba6 b6 9.Nd4=) 8.Qc2 (8.0–0 e5=) 8...Ne8 (8...e5 9.d4 e4 10.Nfd2=) 9.a4+= f5 (9...Nf6 10.0–0+=) 10.0–0 Bf6 (10...a6 11.a5 Nd7 12.d4+=) 11.d4+/– g6 (11...a6 12.a5 Nd7 13.Nc3+/–) 12.Qb3 (12.a5 Nd7+/–) 12...Qe7 (12...Nd7 13.Nc3+/–) 13.a5 Nd7 14.Nc3 Bg7 15.Nd2 (15.Rfd1 f4+/–) 15...Kh8 (15...c5 16.Na4+=) 16.f4 (16.Rfd1 f4+/–) 16...c5+= 17.bc6 bc6 18.Qa4 (18.Qc2 c5 19.Nb3 Rb8+=) 18...c5 19.Nf3 (19.Nb3 Rb8+=) 19...cd4 (19...Rb8 20.Rab1=) 20.Nd4 (20.ed4 Bb7 21.Qd1 Rb8=) 20...Nc5= 21.Qc2 (21.Qa3 Bb7=) 21...Bb7 22.Bf3 (22.Nb3 Nb3 23.Qb3 Nf6=) 22...e5 (22...Bf3 23.Rf3 Nf6 24.Na4+=) 23.Bb7 (23.Nd5 Qh4 24.Nb3 e4 25.Nc5 dc5+=) 23...Qb7= 24.fe5 Be5 (24...de5 25.Nf3 Rc8 26.Nd5=) 25.Nf3 (25.Rab1 Nf6+=) 25...Bg7= 26.Rfb1 (26.Nb5 a6 27.Bg7 Kg7=) 26...Qc6 (26...Nf6 27.Nd5 Nd5 28.Bg7 Qg7 29.cd5=) 27.Nd5+= Ne4 (27...Nf6 28.Bf6 Bf6 29.Nd4+=) 28.Nd4 (28.Bg7 Ng7 29.Nd4 Qd7+=) 28...Qd7= 29.Nf3 (29.Ne2 N8f6=) 29...Rc8 (29...Nc7 30.Qd3=) 30.a6 (30.Bg7 Qg7 31.Nd4 Rf7=) 30...Qf7 (30...Nc7 31.Ra5 Nd5 32.Rd5=) 31.Bg7 Ng7 32.Qe2 Rb8 33.Nd4 Nc5 34.Nb5 Ne8 35.Qb2 Kg8 36.Qd4 Qd7 37.Nb4 Rb6+= 38.Nd5 Ra6 39.Ra6+/– Na6 40.Ra1 Nc5 41.Ra7 Qd8?? 42.Ne7 (42.Ne7 Qe7 43.Re7+–) 1–0. Nyikos,Laszlo – Garms,Ilse, Brandenburg–ch Seniors, 2005.

5.Nf3 e5 6.c4 (6.Be2 Be6=) 6...b6 (6...e4 7.Nd4+=) 7.d4= Nbd7 (7...e4!? 8.Nfd2 a6=) 8.de5+= de5 9.Ne5 (9.Be5 a6+=) 9...Bb4 10.Ke2 Ne5 (10...Qe7 11.Nc6 Qd6 12.Qd6 Bd6 13.Nc3+/–) 11.Qd8 (11.Be5?! Qe7 12.Qd4 Bg4 13.f3 Bc5+=) 11...Kd8 12.Be5 Be7 (12...a6!?+/–) 13.Nc3+– Be6 (13...Bd7 14.Rd1+–) 14.Kd2 (14.Rd1!? Ke8+–) 14...Rg8 (14...a6 15.Bd3+/–) 15.Be2 Nd7 (15...a6 16.Bf3 Ra7 17.Kd3+/–) 16.Bd4 a5 (16...a6 17.Bf3 Ra7 18.Nd5+–) 17.Bf3 Ra7 18.Bd5 Nf8 19.f3 Bd5 20.Nd5 Nd7 21.h4 Ra8 22.f4 Bd6 23.g4 Rc8 24.Kc3 c5 25.bc6 Rc6 26.Rhb1 Bc5 27.Rb5 f6 28.Rab1 Bd4 29.Kd4 Rd6 30.c5 bc5 31.Rc5! Ke8? 32.Ra5 Kf7 33.e4 Re8 34.Rb7 Kg8 35.Raa7 Rd8 36.e5 fe5 37.fe5 Rg6 38.Ne7 Kf7 39.Ng6 Kg6 40.Rd7 Rd7 41.Rd7 (41.Rd7 h5 42.Rg7 Kg7 43.g5+–) 1–0. Dopper,Johan – Bloom,Aad, 1992.

5.f4 Nbd7 6.Nf3 b6 (6...0–0 7.Be2=) 7.Be2 Bb7 8.0–0 0–0 9.c4 Nc5 10.Nc3 Rc8 (10...a6 11.Nd4=) 11.Qe1 a5 12.Qg3 Nfe4?? (better is 12...Qd7=) 13.Ne4+– Be4 (13...f6 14.Nc5 dc5+–) 14.Nd4 (14.Qg7) 14...Qe8?? (14...Bf6 15.Rad1=) 15.Bf3 (15.Nf5 Bg5 16.Qg5 Bf5 17.Qg7) 15...Bf3?? (15...Bf6 16.a3=) 16.Rf3 Kh8?? 17.Nc6 Rg8+= 18.Qh4?? Qf8 19.Rh3 h6 20.g4 Bd8 21.g5 Nd7?? 22.Qh6 1–0. Lais,Klaus Joerg – Hilpisch,Ralf, Saarland–chC, 1992.

4.e4 0–0

5.Nc3 d6 6.d4 e5 7.Nf3 Bg4 8.Be2 Nbd7 9.h3 Bf3 10.Bf3 Re8 11.0–0 c6 12.a4 a6 13.bc6 bc6 14.de5 Ne5 15.Be2 Rb8 16.Rb1 Qa5 17.f4 Ned7 18.Bd3 Rb4 19.Ba3 Rb1 20.Nb1 Qa4 21.Kh1 Ne4 22.Qe1 Bf6 23.Be4 Re4 24.Qc3 Bc3 25.Nc3 Qc4 26.Rf3 Rf4 0–1. Norstroem – Thoern, corr SSKK 3–1352 1993.

5.d3 c6 6.a4 d6 7.Nf3 cb5 8.ab5 b6 9.g3 Bb7 10.Bg2 Nbd7 11.0–0 Nc5 12.c4 Qc7 13.Qe2 h6 14.e5 de5 15.Be5 Qd7 16.Bf4 Qd3 17.Qd3 Nd3 18.Be3 Rfd8 19.Nc3 Nc5 20.Ne5 Bg2 21.Kg2 Nfd7 22.Nc6 Re8 23.Rfd1 Nf6 24.Ra7 Ra7 25.Na7 Ra8 26.Nc6 Bf8 27.Ne2 Kh7 28.Nf4 g5 29.Nd3 Nfd7 30.Nce5 Rd8?? 31.Nc5+– Nc5 32.Rd8 Be7 33.Rb8 1–0. Jokmin,Alex – Vontina,Maria, RN–2010–0–00308, 2010.

5.e5 Ne8 6.d4 d6 7.Nd2 de5 8.de5 c6 9.Ngf3 Nc7 10.a4 cb5 11.ab5+= b6 12.Be2 Bb7 13.0–0 Nd7 14.Re1 Nd5 15.Ne4+= Nc5 16.Bf1 Qc7 17.Nd6 Rfd8 18.Nb7 Qb7 19.Nd4+= Nf4? 20.g3+– Nd5 21.Bg2 a6? 22.c4 ab5 23.cd5 ed5 24.Ra8 Qa8 25.e6 (25.e6 fe6 26.Ne6 Ne6 27.Re6+–; 25.Nb5?! Ne6+–) 1–0. Buczinski,Henryk – Gerhardt,Elomar, corr Argentina–200 Anos Br.71, 2010.

5.e5 Ne8 6.Qg4 d5 7.ed6 cd6=+ 8.Bd3 Nf6 9.Qg3 e5 10.Nf3?? e4 11.Be4 Nh5 12.Ng5 Ng3 13.Bh7 Kh8 14.hg3 Bg5 15.Bd3 Bh6 16.Rh6 ½–½. Gubaidullin,Airat (1675) – Shamsiev,Yury, Ufa RUS, Siamidi Mem, 2011.

5.Bf6 Bf6 6.d4 b6 7.Nf3 Bb7 8.Bd3 d6 9.0–0 Nd7 10.c4 g6 11.Re1 Bg7 12.Nc3+= Qe7 13.d5?? e5 14.a4 a6 15.a5 ba5 16.Ra5= Nc5 17.Na4 Na4 18.Qa4 ab5= 19.Qb5 Rfb8?? 20.Qa4 Ra5 21.Qa5 Bc8 22.Nd2 Bb7? 23.Rb1 Qd8?? 24.c5?? Bf8? 25.c6 Ba8+/– 26.Qa7 Rb1 27.Bb1 Bh6 28.Nf3 Kg7 29.Bd3 Bc1? 30.Ba6+– Ba3? 31.Bb7 Bc5 32.Qa8 Qa8 33.Ba8 f5 34.Ng5 h6 35.Ne6 Kf6 36.ef5 gf5 37.Nc7 e4 38.Na6 Bb6 39.c7 Bc7 40.Nc7 1–0. gtate (1930) – guerino (2100), net–chess.com, 2005.

4.e4 d6

5.Nc3 0–0 6.Nf3 d5 (6...a6 7.d4=+) 7.e5 Nfd7 8.Be2 f6 9.ef6 Bf6 10.0–0 c5 11.Re1 b6 (11...Ne5!?=) 12.Bf1 Re8 13.d4 cd4 14.Nd4 Nc5 15.Qd2 e5 16.Nb3 Bb7 17.Nc5 bc5 18.Rad1 e4 19.Ba3 Bd4 20.Nd5 Qd5 21.c3 e3? (better is 21...Rd8+=) 22.fe3+– Be3 (22...Nd7 23.cd4 c4+–) 23.Re3 Re3 (23...Nd7 24.Rd3 Qe5 25.Rd7 Bc8 26.Bc4 Kh8+–) 24.Qe3 (24.Qd5?! Bd5 25.Rd5 Kf7 26.Rc5 Nd7+/–) 24...Qh5 (24...Nd7 25.Rd5 Bd5 26.Bc5 Nc5 27.Qc5 Ba2+–) 25.Qe6 (25…Kh8 26.Rd8 Qe8 27.Re8#) 1–0. kamret (2220) – turborago (1940), GameColony.com, 2003.

5.e5 de5 6.Be5 Nbd7 7.Nf3?? 0–0 8.Qe2 b6 9.g3 Bb7 10.Bg2 Ng4 11.Bf4 Bf6 12.c3 Re8 13.d4 e5–+ 14.de5?? Nge5 15.0–0 Nf3 16.Bf3 Re2 17.Bb7 Rb8 18.Bf3 Re8 19.Nd2 Nc5 20.Rad1 Nd3 21.Ne4 Re4 22.Be4=+ Qe7 23.Bd3 g6 24.a4 Qa3 25.Bc7 Rc8–/+ 26.Bf4 Rc3 27.Be4 Qa4–+ 28.Bc6 Ra3 29.Bh6 Ra1 30.Ra1 Ba1 31.Re1 Bg7?? 32.Re8 (32.Re8 Bf8 33.Rf8#) 1–0. MasterofDisaster – dahummer, Live Game Caissa's Web, 2005.

5.Nf3 0–0 6.Nc3 c5 7.e5 (7.Bd3 Nbd7=) 7...de5 8.Ne5 Qc7 9.Nc4 b6 (9...Nbd7=) 10.h4 (better is 10.Bd3!?+=) 10...Bb7+= 11.Rh3 (11.Ne3 Rd8+=) 11...Nbd7–/+ 12.Rg3 Rad8 13.Bd3 Qf4 (13...Ne5 14.Ne4 Nd3 15.cd3 Be4 16.de4=) 14.Qe2 Rfe8 (14...Qh4 15.Rh3 Qg5 16.f3+=) 15.0–0–0 Bf8 (15...Qh4 16.Qe3+=) 16.Re3 (16.Rh1 e5 17.Qe3 Nh5=) 16...Bg2 17.Rg1 Qh2 18.Qe1 Bb7 19.Reg3 Qh4 20.Ne5 (20.f3 Qf4 21.Ne2 Qh6+–) 20...Qf4 (better is 20...Ne5!? 21.Qe5 g6–+) 21.Ne2+= Qh6 22.Nc6 g6 23.Rh1 (23.Nd8 Rd8 24.Qf1 Nh5+=) 23...Qg7 (23...Nh5!? 24.Re3 Bg7 25.Nd8 Rd8+=) 24.Nf4= e5 25.Nh5 (25.Be5 Ne5 Decoy; 25.Ne5 Bh1 Pinning (25...Bh1 Deflection)) 25...Nh5+= 26.Rh5 Can e5 get defended? 26...Bd6 (better is 26...Ra8+=) 27.Nd8+= Rd8 28.f4 ef4?? (better is 28...Re8=) 29.Bg7 (better is 29.Rg6! hg6 30.Bg7 Kg7 31.Rh7 Kh7 32.Qh4 Kg7 33.Qd8 c4 34.Qd7 Ba3 35.Kd1 cd3 36.Qb7 dc2 37.Kc2 Bb4+–) 29...fg3 30.Bh6 (30.Bb2 gh5 31.Qe3 Kf8 32.Bg7 Kg7 33.Qg5 Kh8 34.Qd8 Kg7+–) 30...gh5? (30...g2 31.Rh3 Ne5+–) 31.Qe3 Kh8 32.Bg7 Kg7 33.Qg5 (33.Qg5 Kf8 34.Qd8 Kg7 35.Bf1+– (35.Qd7?? g2 36.Kb2 g1Q 37.Qd6 Qd4 38.Qd4 cd4–+)) 1–0. Posch,Sandor (1965) – Pais,Nimrod (2005), Szekesfehervar HUN, City Ch, 2014.

4.e4 Ne4

5.Qg4? Bf6–/+ 6.c3 d5 7.g3 0–0 8.Bg2 Nd6 9.Na3 e5 10.Qe2 c6 11.Bh3 Bh3 12.Nh3 cb5 13.Nb5 Nc4 14.d3 Nb2 15.Qb2 Qd7 16.Ng1 Nc6 17.Ne2 a6 18.Na3 b5 19.Nc2 Rac8 20.0–0 d4 21.cd4 Rfd8 22.Qb3 Nd4 23.Ncd4 ed4 24.Rab1 Qg4 25.f3 Qh3 26.Nf4 Qf5 27.Rbc1 Rc1 28.Rc1 Qe5 29.Ng2 g6 30.Re1 Qd5 31.Re8 Kg7 32.Rd8 Qd8 33.a4 Qd7 34.ab5 Qb5 35.Qb5 ab5 36.Ne1 b4 37.Nc2 Be7 38.Nd4? Bc5 39.Kf1 Bd4 40.Ke2 b3 41.Kd2 f5 42.h3 Kf6 43.g4 Ke5 (43...Ke5 44.Kd1 b2–+) 0–1. super knight – yaunootz, internet, 2006.

5.Bg7 Rg8 6.Bb2 =+.

4.Nf3 0–0

5.c3 d5 6.c4 dc4 7.Qa4 c5 8.Qc4 b6 9.g3 Bb7 10.Bg2 Nbd7 11.0–0 Qc7 12.d4 Rac8 13.Nbd2 Rfd8 14.Qa4 Bd5 15.Rfe1 cd4 16.Nd4 Bg2 17.Kg2 Nc5 (17...Nc5 18.Qc2 a6=+; 17...Qb7 18.N2f3 Qe4 19.Qa7–/+) 0–1. uno (1870) – mpower64 (1985), ICC, 2003.

5.Nc3 b6 6.e4 Bb7 7.Bc4 Ne4–/+ 8.0–0 Nc3 9.Bc3 d5 10.Bb3 Nd7 11.a4 Nf6 12.Bb2 c5 13.c4 d4 14.Re1 Bd6 15.Re2? Qc7 16.h3 Rae8 17.Qc2? e5 18.Rae1? e4 19.Nh4 d3 (19...d3 20.Qb1 de2 21.Bf6 gf6–+) 0–1. Jokmin,Alex – Vontina,Maria, RN–2009–0–00235, 2009.

5.Nc3 b6 6.e4 d6 7.d4 a6 8.a4 Bb7 9.Bd3 Re8 10.0–0 Bf8 11.Qe2 e5 12.de5 de5 13.Rfd1 Nh5 14.ba6 Nf4 15.ab7 Ne2 16.Be2 Ra7 17.Rd8 Rd8 18.Nd5 Rb7 19.Rd1 Re8 20.Ne5 c6 21.Ne3 Ra7 22.Bc4 Bc5 23.Nf5 Bf8 24.Rd3 g6 25.Ng4 1–0. aspasio – Fallen_Star, ICC, 1999.

5.Nc3 d5 6.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Nc3).

5.c4 a6 6.Nc3 c6 7.e4 cb5 8.e5= Ne8 9.cb5 ab5 10.Bb5 Nc6 11.0–0 Nc7 12.Be2 d5 13.Qc2 d4 14.Nb5+= Nb4? 15.Qc7+– d3 16.Bd1 1–0. wiking – jfk, internet, 2010.

5.c4 c5 6.e3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.c4 c5).

5.c4 c6 6.a4 a6 7.g3 d5 8.Na3 Bd7 9.d3 cb5 10.ab5 ab5 11.Nb5=+ Ra1 12.Qa1 Bb5 13.cb5 b6 14.Bg2= Nbd7 15.0–0 Nc5 16.Ne5+= Nb3 17.Qa7 Na5 18.Bd4+/– Bc5 19.Bc5 Nb3?? 20.Bb6 Qc8 21.Be3 Qc3 22.Nf3 e5 23.d4 ed4 24.Bd4 Nd4 25.Nd4 Ne4 26.Be4 de4 27.e3 Rc8 28.b6 1–0. TeaCzar – retiponziani, ChessWorld.net, 2010.

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

5.e3 c6 6.a4 cb5 7.ab5. Daatselaar,Jan Bart van (2230) – Valencia Ciordia,Jose A (1885), 2nd Webchess Open Tournament group, 2006.

5.e3 c6 6.a4 Ne4 7.c4 Bf6 8.d4 d5 9.Bd3 Nd6 10.c5 Nc4 11.Bc4 dc4 12.Nbd2 cb5 13.ab5 a6 14.Nc4 a5 15.0–0 Bd7 16.Qb3 Be8 17.Bc3 a4 18.Ra4 Ra4 19.Qa4 Be7 20.Ba5 Qd5 21.Bc7 Nd7 22.Bd6 Bd6 23.Nd6 b6 24.e4 Nc5 25.dc5 Qc5 26.Qd4 Qd4 27.Nd4 Bd7 28.Ra1 f5 29.e5 g6 30.Ra7 1–0. Gretencord,Ulrich – Pieleck,Rudi, BdF OS–006 remoteschach.de, 2003.

5.e3 c6 6.Nc3 d5 7.Rb1 e5 8.Ne5+= Qd6 9.Nf3 Bg4 10.Be2 Re8 11.0–0 Nbd7 12.bc6 bc6 13.Nd4 Be2 14.Qe2 a6 15.Rfe1 Ne5 16.e4 de4 17.Ne4 Ne4 18.Qe4 Nc4?? 19.Nf5+– Qd5 20.Ne7 Re7 21.Qe7 Rf8 22.Qf8! Kf8 23.Ba3! Na3 24.Rb8 1–0. b4_player (2215) – Saturno. (1825), GameColony.com, 2003.

5.e3 c6 6.c4 a6 7.a4 d5 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6 8.Be2).

5.e3 d5 6.c4 c5 7.a4 b6 8.Be2 Bb7 9.0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4).

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

5.e3 d5 6.d4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.d4).

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

5.e3 d6 6.Be2 e5 7.0–0 h6 8.c4 Be6 9.Nc3 Nbd7 10.a4 c6 11.d4 e4 12.Nd2 d5 13.f3 Nh7? 14.fe4+– de4? 15.Nce4 f5 16.Nc5?? Nc5=+ 17.dc5 Bg5?? 18.Qb3?? Qd2–+ (18...Qd2 19.Bd3 Rad8–+ (19...Qe3?! 20.Kh1 Rad8 21.Rad1–+; 19...Be3?! 20.Kh1 Bc5 21.bc6–+)) 0–1. elsh1403 – teeno (1685), kurnik, 2011.

5.g3 b6 6.Bg2 Bb7 7.0–0 d5 8.e3 c6 9.a4 c5 10.c3 Nbd7 11.d4. mic (2130) – kostaspetidis (2105), net–chess.com, 2008.

5.g3 c6 6.a4 d5 7.Bg2 cb5 8.ab5 Qb6 9.Na3 Ne4 10.0–0= Nd6 11.Bd4 Qd8 12.d3 b6 13.c4+= Bb7 14.Qb1 dc4 15.Nc4 Nd7 16.Rc1 Nc4 17.Rc4 Bc5 18.Qb2 Bd4 19.Rd4 Qf6 20.Rb4 Nc5 21.Qf6+/– gf6 22.Nd4 Bg2+= 23.Kg2 Rfc8 24.Nc6 Rc7 25.d4 Ne4+= 26.Rba4 a5= 27.R1a3 Nd6 28.Rb3 Nb5 29.Na5 Nd4 30.Rb6 Ne2 31.Rc4 Rc4 32.Nc4 Nc3 33.Rb7 Rd8 34.Rc7 Nb5 35.Rb7=+ Nd4 36.Ne3 Kg7–/+ 37.h4 h5 38.Ra7 Kg6 39.Kh3 f5 40.Kg2 Nc6 41.Rc7 Ne5 42.Nc4 Nd3 43.f4 f6 44.Rc6 Rd4 45.Nd6 Nb4 46.Rb6 Nd5 47.Ra6 Rd2 48.Kf3 Rd3 49.Kf2 Nc3 50.Rc6 Kg7 51.Kg2 Kf8 52.Nf5? ef5–/+ 53.Rf6 Kg7 54.Rf5–/+ Rd5 55.Rg5 Kh6 56.g4= Rd2 57.Kf3 Rd3 58.Kg2 hg4=+ 59.Rg4 Nd5 60.f5?? Ne3–+ (61.Kf3 Ng4 62.Kg4 Rd4 63.Kg3 Kh5–+) 0–1. Carzolio,L (2040) – Mrdja,M (2380), Genova open Ducale, 2003.

5.g3 d5 6.Bd4 =+.

5.e3 a6

6.a4 ab5 7.ab5 Ra1 8.Ba1 c5 9.Be2 d5 10.c4 Qa5 11.Nc3 Nbd7 12.cd5 ed5 13.0–0 Nb6 14.d4 c4 15.Qc2 Bd7 16.Rb1 Ra8 17.Ne5 Be6 18.Bb2 Qb4 19.Bf3 g6 20.Ba1 Qd6 21.Re1 Bf5=+ 22.Qc1 Na4 23.Nd5+= Nd5 24.e4 Nb4? 25.ef5+– Ra7?? 26.Qc4 Nb6 27.Qf7 Kh8 28.fg6 (28.fg6 Qg6 29.Ng6 hg6 30.Qe8 Kg7 31.Re7 Kh6 32.Qh8 Kg5 33.h4 Kf5 34.Qe5#) 1–0. b4_player – Fini_mladic, gamecolony.com, 2006.

6.a4 ab5 7.ab5 Ra1 8.Ba1 c6 9.bc6 bc6 10.Bf6 ½–½. Palac,Mladen (2580) – Zelcic,Robert (2540), Verona op, 2002.

6.a4 d5 7.Be2 ab5 8.ab5 Ra1 9.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Be7 8.Nf3 0–0 9.Be2).

6.a4 d6 7.d4 c6 8.Nc3 Bd7 9.Bd3 ab5 10.ab5 Ra1 11.Qa1 cb5 12.Nb5 Na6 13.0–0 Qb6 14.c4 Ra8 15.Nc3 Qd8 16.Qb1 Nb4 17.e4 Nd3 18.Qd3 Qc7 19.Rb1 Ne8 20.Rc1 Qb6 21.Nd1 Ra4 22.h3 h6 23.d5 e5 24.c5 Qb4 25.cd6 Bd6 26.Be5 Qe4 27.Qe4 Re4 28.Bd6 Nd6 ½–½. Luzuriaga,Norberto Horacio – Camargo,Peter, corr I WCH Prelim. LIAPE, 2003.

6.Nc3 =+.

6.c4 ab5 7.cb5 c6 (7...d6 8.Bc4=+) 8.a4 (8.Be2 cb5 9.Bb5 d5=) 8...c5 9.Be2 d6 10.0–0 Nbd7 (10...e5 11.d3=) 11.d4 Ne4 (11...d5 12.dc5 Nc5 13.Be5=) 12.Nfd2 (12.Nc3 d5=) 12...f5 13.Ne4 fe4 14.Qb3 (14.Bg4!?=) 14...d5=+ 15.Nd2 c4 16.Nc4 dc4 17.Bc4 Nf6 18.Be6 Kh8 19.d5 (19.Rfc1 Qb6 20.Bc8 Rac8 21.Rc8 Rc8=+) 19...Nd7 (19...Be6 20.de6 Qa5=+) 20.Rac1 (better is 20.Bd4=) 20...Qa5?? (better is 20...Nc5!? 21.Qc3 Ne6 22.de6 Bf6–/+) 21.Ba3 Qd8 22.b6?? Nf6?? 23.a5 Be6 24.Be7 Qe7 25.de6 Rfe8 26.Rc7 Qe6 27.Qc3 Re7 28.Rc1 h6 29.Re7 Qe7 30.h3 Nd5 31.Qd2 Rd8 32.Qd4–/+ Nf6 33.Rc7 Rd4 34.Re7 Rd7 35.Re5 Kg8 36.f4 Kf7 37.g4 Rd5 38.a6? ba6?? 39.Rd5+– 1–0. Twombly,R – Wright,R, Houston TX USA, 1994.

6.c4 ab5 7.cb5 d5 8.Be2 c5 9.bc6 bc6 10.0–0= h6 11.Nc3 Ba6 12.a4 Be2 13.Qe2 Nbd7 14.Rfb1 Qa5 15.Nd4 Rfc8 16.Nb3 Qc7 17.Ba3 Ba3 18.Ra3 c5 19.Nb5 Qc6 20.d3 Nb6 21.Qe1 Ra6 22.Qd2 Na4 23.Nc1 Rb8 24.Nd4 Qe8 25.Rb8 Qb8 26.Nf3 Qb4 27.Qb4 cb4 28.Ra1 1–0. ST_KAOURAS – winugly123, ChessWorld.net, 2009.

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

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

6.Be2 ab5 7.Bb5 d5 =.

5.e3 b6

6.a4 Bb7 7.Be2 c5 8.0–0 d5 9.c4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4).

6.a4 Bb7 7.Be2 c5 8.0–0 d5 9.d3 Nbd7 10.Nbd2 Qc7 11.c4 dc4 12.Nc4 Rfe8 13.Nfe5 Rad8 14.a5+= Bd5. pcmvr (2225) – guerino (2100), net–chess.com, 2006.

6.Nc3 Bb7 =.

6.c4 Bb7 7.Be2 d5 8.0–0 (-->1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.c4 0–0 7.Be2 d5 8.0–0).

6.d4 Bb7 7.Nbd2 d5 8.Bd3 Nbd7 9.0–0 Ne4?! (9...c5) 10.c4 Ndf6 11.a4? (11.Qc2! Nd2 (11...c5? 12.Be4! de4 13.Ng5) 12.Nd2 c5 (12...dc4? 13.Nc4 Qd5 14.e4! Ne4 15.Ne3!) 13.bc6 Bc6 14.cd5 Bd5 15.e4) 11...Nd2 12.Nd2?! (12.Qd2 dc4 13.Bc4 Bf3 14.gf3) 12...dc4 13.Bc4? (13.Nc4 Qd5 14.f3) 13...c5! 14.bc6 Bc6 15.Qe2 Qd7 16.Bb5 Bb5 17.ab5 Rac8?! (17...Nd5 (idea Nc7)) 18.Nf3 Rc7? (18...Bd6) 19.Ne5 Qd5 20.Nc6 a5? 21.Ne7 Re7 22.Ba3 Rc7 23.Bf8 Kf8 24.Rfc1 Ne8 25.Qd3! Rc1 26.Rc1 Nd6 27.Rb1 Qa2 28.e4 a4 29.d5 ed5 30.ed5 1–0. W Labahn – Funkel, 1988 (Labahn).

6.d4 Bb7 7.Bd3 c5 8.0–0 d6 9.dc5 bc5 10.c4 Nbd7 11.Nbd2 d5 12.a4 Qc7 13.Qc2 Bd6 14.h3 Rac8 15.Rfd1 Ne5 16.Ne5 Be5 17.Nf3 Bb2 18.Qb2 d4 19.ed4 Bf3 20.gf3 Qf4 21.Be2 Qh4 22.dc5 Rc5 23.Qd4 Qg5 24.Kh2 ½–½. J Rogers – A Martin, Eastbourne 1991.

6.Be2 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Bb7 10.0–0 d6 11.c4 Nbd7 12.d4 Ne4 13.Bb2 f5 14.Nfd2 Ndf6 15.Ne4 Ne4 16.f3 Nf6 17.Qb3 Kh8 18.Nc3 Qd7 19.Ra1 Ra8 20.Ra8 Ba8 21.Bd3 Qc8 22.Qc2 h6 23.d5 ed5 24.Bf5 Qg8 25.Ne2 dc4? 26.Nf4+– Qf7 27.Be6 Be4 28.fe4 (28.fe4 Qe8 29.e5+–; 28.Bf7?! Bc2 29.Bc4 Ne8+/–) 1–0. luciano59 (2100) – kostovist (1650), internet, 2006.

6.Be2 Bb7 7.0–0 a6 =.

6.Be2 Bb7 7.c4 c5 8.0–0 d6 9.Nc3 Nbd7 10.a4 Qc7 11.Qb3 d5 12.d3 dc4 13.dc4 Rad8 14.Rfd1 Ng4 15.h3 Bf3 16.hg4 Be2 17.Ne2 Bf6 18.Bf6 Nf6 19.f3 Rd1 20.Rd1 Rd8 21.Nf4 Rd1 22.Qd1 Qd7 23.Qd3 Qd3 24.Nd3 Nd7 25.Kf2 Kf8 26.f4 Ke7 27.Kf3 f6 28.e4 Kd6 29.g3 g6 30.Ne1 Nf8 31.Ng2 g5 32.Ke3 Ng6 33.Kf3 Ke7 34.Ke3 ½–½. Kreuzer – Schrepp, 1983.

6.Be2 Bb7 7.d4 a6 8.0–0 =+.

6.Be2 Bb7 7.d4 c5 8.0–0= d6 9.dc5 bc5 10.c4 Nbd7 11.Nc3 Qc7 12.Qc2 Ne8 13.Bd3 g6 14.Ne4 e5 15.Nc3 f5 16.e4 f4 17.Nd5+/– Qd8 18.Ne7 Qe7 19.Nd2 Nc7 20.f3 Ne6+= 21.Nb3 g5 22.Qf2 Rf6 23.Rfd1+/– Kh8 24.Kf1 Rg8 25.h3 h5 26.Ke2 Nd4 27.Bd4 ed4 28.Kd2 Ne5 29.Re1 Rh6 30.a4 Qf6 31.a5= g4 32.hg4 hg4 33.Rh1 gf3 34.Rh6+= Qh6 35.gf3 unclear. Neuwald,Volker – Simon,Holger (2135), Baden HT opA, 2001.

6.Ne5 Bb7!? =+.

6.Ne5 d6 7.Qf3= d5 8.Nc3 Bb7 9.Be2 Nbd7 10.Nd7 Qd7 11.0–0 Rab8 12.Qg3 Bd6 13.f4 Bb4 14.Nd5+/– Bd5 15.Bf6+– g6 16.a3 Be7 17.Be7 Qe7 18.c4 Be4 19.d3 Bb7 20.Bf3 Bf3 21.Qf3 Qd6 22.Rfd1 Rbd8 23.d4+– Qe7 24.e4 f5 25.e5 Rd7 26.Rd2 Rfd8 27.Rad1 Kg7 28.Rd3 g5 29.Qg3 h6 30.R1d2 Kg6 31.h4 Kh5 32.hg5 hg5 33.Qh2 Kg6 34.fg5 Rg8 35.Rh3 Rg7 36.Rh6 Kf7 37.d5 ed5 38.e6 Kg8 39.Rh8# 1–0. b4_player (2230) – realsnake (1765), GameColony.com, 2003.

4.Nf3 a6

5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.c4 cb5 9.cb5 Qa5 10.Nc3 d5 11.e3 Bb4 12.Be2 Bd7 13.0–0 0–0 14.Qb3 Bc3 15.Bc3+/– Qd8 16.Ra1 Bc8 17.Bb4 Re8 18.d4 Nbd7 19.Rc1 Nb6 20.Ba5 Qd6 21.Ne5 Ne4 22.f3 Nf6 23.Nd3 Nc4 24.Bb4 Qb6 25.Bc5 Qa5 26.e4 Nd7 27.Nf4?? b6?? 28.Bb4+= Qb5 29.Bd3 Qa6 30.ed5+/– b5 31.de6 fe6 32.Bc4 bc4 33.Qc4 Qc4 34.Rc4 Nb6 35.Rc6 Nd5 36.Bd2 Nf4 37.Bf4 Bd7 38.Rd6 Bb5 39.Kf2 Kf7 40.Ke3 h6 41.h4 Bc4 42.g4 Bd5 43.h5 Ra8 44.Be5 Ra3 45.Kd2 Ra7 46.Ke2 Ra2 47.Kd3 Ra7 48.f4 Bf3 49.g5 Bh5 50.gh6 Bg6 51.Kc4 gh6 ½–½. CountFromHolland – bob19, playchess.de, 2003.

5.a4 ab5 6.ab5 Ra1 7.Ba1 d5 8.e3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Be7 8.Nf3).

5.c4 0–0 6.Nc3 d5 7.e3 dc4 8.Bc4 ab5 9.Bb5 Bd7 10.a4 Na6 11.0–0 Nc5 12.d4 Bb5 13.ab5 Ra1 14.Qa1 Nce4 15.Ne4 Ne4 16.d5 Bf6 17.de6 fe6 18.Bf6 Qf6 19.Qd4 Qd4 20.Nd4 Rf6 21.f4 Nd6 22.Rc1 Rf7 23.Rc5 Re7 24.Kf1 Kf7 25.Ke2 Kf6 26.g4 h6 27.h4 e5 28.g5 hg5 29.hg5 Kg6 30.fe5 Ne4 31.Rc1 Kg5 32.Rg1 Kh5 33.e6 g5 (better is 33...g6=) 34.Nf5+– Rh7 35.e7 Nf6 36.Rh1 Kg6 37.Rh7 Kh7 38.b6! cb6 39.Nd6 b5 40.e8Q Ne8 41.Ne8 b4 42.Nd6 g4 43.Nc4 (43.Nb7?? b3 44.Kd3 g3–+) 43...Kg6 44.Nd2 Kf5 45.Kf2 b5 46.Ke2 Ke5 47.Nf1 (better is 47.Kf1!?+/–) 47...b3= 48.Kd3 b2 49.Kc2 (better is 49.Nd2!?=) 49...Ke4–/+ 50.Kb2 ½–½. Matveenko,Y (2150) – Kutliev,R (1830), Voronezh FIDE Open, 2011.

5.e3 ab5 6.Bb5 0–0 7.0–0 b6 8.a4 Bb7 9.d4 c5 10.dc5 bc5 11.Nbd2 Nc6 12.Ne5 Ne5 13.Be5 d5 14.Qf3 Nd7 15.Bf4 Nf6 16.Rfd1 Ba6 17.e4 Bb5 18.ab5 Ra1 19.Ra1 Qb6 20.c4 dc4 21.Rb1 Qb7 22.Be5 Rd8 23.Nc4 Qe4? 24.Qe4+– Ne4 25.b6 Bh4 26.b7 (26.b7 Bf2 27.Kf1+–) 1–0. mrkt – skorpion_77, internet, 2006.

5.e3 ab5 6.Bb5 0–0 7.0–0 c6 8.Be2 b5 9.c4 bc4 10.Bc4 d5 11.Bb3 Ba6 12.d3 Nbd7 13.a4 e5 14.Ne5 Ne5 15.Be5 Nd7 16.Bc3 Nc5 17.Bc2 Bf6 18.Bf6 Qf6 19.Ra3 Rab8 20.a5 Rb2 21.Nd2 Rfb8 22.Re1 Qd6 23.d4 Ne6 24.Ra1 g6 25.Nf3 Qb4 26.Ne5 Qc3 27.Rc1 Bb5 28.Bg6 Qe1 29.Qe1 hg6 30.Nc6 Bc6 31.Rc6 Rb1 32.Rc1 1–0. Bonetti,Shane – RUSH7, ICC 2 12 u, 2002.

4.Nf3 c6

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

5.Nc3 0–0 6.bc6 bc6 7.Rb1 Ba6 8.d3 d6 9.Qd2 Nbd7 10.e4 e5 11.Be2 Rb8 12.0–0 c5 13.Rfd1 Nb6= 14.a3 Qd7 15.Ng5 h6 16.Nh3 Qc6 17.f4 Rfd8 18.Nf2 c4 19.Na2 d5 20.fe5+/– Ne8 21.Nb4 Bb4 22.ab4 Nc7 23.Qf4 c3 24.Bc1 Ne6 25.Qe3 Bb5 26.Rf1 d4 27.Qg3 Kf8 28.Bh5 Rb7 29.Nh3 Ba4 30.Rf2 Qe8 31.Nf4 Ng5 32.Nd5 Nd5 33.Bg5 Rdd7 34.ed5 Rd5 35.Bf3 Bc6 36.Bd5 Bd5 37.Bc1 Be6 38.Qh4 Qe7 39.Qd4 Rd7 40.Qc3 Rc7 41.Qd4 Rd7 42.Qe4 Rb7 43.Qh7 Ke8 44.Bd2 Qf8 45.c4 a6 46.Ra1 Ra7 (46...Rb6 47.b5! Bc8 48.Be3+–) 1–0. orane (1935) – rumrunner, Caissa.com, 2003.

5.c4 cb5 6.cb5 d5 7.e3 0–0 (7...Nbd7 8.Qc1=) 8.Be2 (8.Qc2 h6=) 8...Nbd7 (8...Bd7 9.Ne5=) 9.a4 Ne4 10.Nc3 f5 (10...Ndc5 11.Ne4 de4 12.Ng1=) 11.0–0 Ndf6 12.Ne5 Nd7 ½–½. Krooss,Dietmar – Zimmermann,Manfred, Schleswig Holstein–ch B, 2002.

4.Nf3 d5

5.e3 b6 6.a4 0–0 7.c4 c5 8.Be2 Bb7 9.0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4).

5.e3 b6 6.a4 0–0 7.c4 c5 8.Be2 Bb7 9.0–0 Nbd7 10.cd5 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7 10.cd5).

3...g6

4.c4 c6 5.a4 Bg7 6.e4 d5 7.e5 Nfd7 8.d4 c5 9.cd5 ed5 10.Nf3 0–0 11.Be2 Re8 12.0–0 cd4 13.Bd4 Ne5 14.Ne5 Be5 15.Be5 Re5 16.Bf3 Be6 17.Nc3 Qd6 18.Ne4 Qe7 19.Nc3 Qg5 20.Re1 Nd7 21.Re5 Ne5 22.Qe2 Rd8 23.Rd1 Nf3 24.Qf3 Bg4 25.Qg3 Qh5 26.Rd5 Rd5 27.Nd5 Be6 28.Nf6 1–0. hal1958 – CYTO, playchess.de, 2002.

4.c4 d6 5.Nf3 c5 6.e4 Bg7 7.Nc3 0–0 8.Qc2 Nbd7 9.Be2 Nb6 10.0–0 d5 11.ed5 ed5 12.d3 d4 13.Na4 Na4 14.Qa4 Qd6 15.Qc2 a6 16.a4 b6 17.h3 Nh5 18.Nh4 Nf4 19.Bf3 Ra7 20.Qd1 Bf6 21.Bc1 Nh3 22.gh3 Bh3 23.Ng2 Re8 24.Bg4 Bg2 25.Kg2 ab5 26.cb5 h5 27.Bh3 Qd5 28.Qf3 Qf3 29.Kf3 g5 30.Bf5 Re5 ½–½. Dopper – Pannekoek, 1994.

4.c4 Bg7 (--> 1.b4 Nf6 2.Bb2 g6 3.c4 Bg7 4.b5 e6).

4.Nf3 b6 5.e4+= Bg7 6.e5 Nh5 7.d4 0–0 8.Bc1 Bb7 9.g4+/– Nf6 10.Bg5 a6 11.h4 d6 12.ef6 Bh8 13.h5 Nd7?! 14.ba6 Ba6 15.Ba6 Ra6 16.hg6 hg6 17.Bh6 Re8 18.g5 e5 19.d5 Qa8 20.Ng1 Ra2 21.Ra2 Qa2 22.Ne2 Qa5 23.Nec3 b5 24.Qg4 Rd8 25.Bg7! Bg7 26.Qh4 Nf6 27.gf6 b4 28.Qh7 Kf8 29.Qh8!! (29.Qh8 Bh8 30.Rh8#) 1–0. pcmvr (1880) – the yid, internet, 2005.

4.g3 d5 5.Bg2 Bg7 6.d3 Nbd7 7.Nd2 0–0 8.Ngf3 Re8 9.0–0 e5 10.e4 d4 11.Nc4 Nh5 12.c3 dc3 13.Bc3 f6 14.Qc2 Bf8 15.d4 Bd6 16.Rfd1 ed4 17.Nd4 Bc5 18.Nb3 Qe7 19.Qd2 Qf7 20.e5 Kf8 21.Bd5 Qe7 22.e6 Nb6 23.Nc5 Nd5 24.Qd5 b6 25.Nd7 Bd7 26.ed7 Red8 27.Re1 Qd7 28.Qf3 f5 29.Bb4 Kg8 30.Qb3 Qb5 31.Nd6 1–0. Arno de Visser – Rozenbroek, Noordkop 1994.

4.a4 Bg7

5.Na3 Nh5 6.c3 a6 7.e3 ab5 8.ab5 Qe7 9.Be2 c6 10.Nf3 cb5? 11.Nb5+– Ra1 12.Qa1 Qc5? 13.Qa5 0–0 14.Qc7?? Qb5?? 15.Bb5+– (15.Bb5 Nc6 16.0–0+–) 1–0. poganinbezdom – eliska1111, kurnik, 2011.

5.e3 0–0 6.Nf3 a6 7.c4 ab5 8.ab5 Ra1 9.Ba1 d6 10.Be2 Nbd7 11.0–0 Nb6 12.h3 d5 13.c5 Nc4 14.Bc4 dc4 15.Qc2 Qd5 16.Bd4 Nd7 17.Nc3 Qh5 18.Ne4 Bd4 19.ed4 c6 20.Qc4 cb5 21.Qb5 Nf6?? 22.Nf6 (22.Nf6 Kg7 23.Nh5 gh5 24.Qd3+–) 1–0. j1a9n55 – zacier, kurnik, 2011.

5.e3 0–0 6.Nf3 a6 7.Be2 ab5 8.ab5 Ra1 9.Ba1 b6 10.0–0 Bb7 11.c3 d6 12.c4 Nbd7 13.d3 Nc5 14.d4 Nce4 15.Nbd2 Nd2 16.Nd2 Ne4 17.Ne4 Be4 18.Bf3 Bf3 19.Qf3 Qa8 20.e4 Qa4 21.Qd3 Ra8 22.e5?? Qa1–+ 23.ed6 cd6 24.h3 Qd4 25.Qf3 Ra1 26.Ra1 Qa1 27.Kh2 Qd4 28.Qa8 Bf8 29.f3 Qc4 30.Qd8 d5 31.Qb6 d4 32.Qc6 Qc6 33.bc6 d3 34.Kg3 Bd6 35.Kf2 Kf8 36.Ke3 Ke8 37.Kd3 Kd8 38.Kc4 Kc7 39.Kd4 f6 40.Ke4 Kc6 41.f4 Kc5 42.g3 f5 43.Kf3 e5 44.fe5 Be5 45.g4 f4 46.Ke4 g5 47.Kf5 f3 48.Ke5 f2 49.Kf5 f1Q 50.Kg5 Qh3 51.Kf4 h5 52.g5 Qg4 (53.Ke5 h4–+; 52...Kd4 53.g6 Qg4) 0–1. GULP – Arete2, Caissa.com, 2004.

5.e3 d6 6.c4 b6 7.Nf3 Nbd7 8.Be2 Bb7 9.0–0 0–0 10.d3 Qe7 11.Qc2 Rac8 12.Nbd2 d5? 13.Ba3+– Nc5 14.d4 Nfe4 15.Ne4 de4 16.Ne5 Be5 17.Bc5 bc5 18.de5+/– Qg5 19.a5 Rcd8 20.Qb2 f5 21.a6 Ba8+/– 22.Qa3 f4? 23.ef4+– Rf4 24.Qc5 e3 25.f3 Rh4? 26.Ra3 Qh5 27.h3 Rh3 28.Qc7 Qg5 29.Qg7?? Kg7–+ 30.Rf2 (30.Rf2 Qg3 31.Re3 Qh2 32.Kf1 Qh1#). ZMeB4 (1685) – sentry, caissa.com, 2007.

5.e3 Nh5 6.Qc1 Bb2 7.Qb2 Qf6 8.Nc3 b6 9.Be2 Bb7 10.Bh5 gh5 11.Nf3 a6 12.Rb1 ab5 13.Nb5 Qb2 14.Rb2 Ra4 15.Nc7? Kd8–+ 16.Ne6 de6 17.Rb1 Bf3 18.gf3 Kc7 19.Rg1 Nc6 20.Rg7 Rha8 21.Rf7 Kd6 22.Rh7 R4a5 23.Rb6= Ra1 24.Ke2 R8a2 25.Rh5 Rc2 26.Rh6?? Raa2–/+ 27.f4 Rd2 28.Kf3 Rf2 29.Kg4 Rg2 30.Kf3 Raf2 31.Ke4 Rh2 32.Rh2 Rh2 33.Ra6 Rb2 34.Kf3 Rc2 35.Kg4 Ke7 36.f5 Rg2?? 37.Kh3 Rf2 38.Rc6 Rf5 39.Kg3 Rf8 40.e4 Kd7 41.Ra6 e5 42.Rb6 Kc7 43.Rg6 Rf4= 44.Rg4 Rf6 45.Rh4 Kd6 46.Rg4 Kc5 47.Kg2 Kd4 48.Kg3 Ke3 49.Kg2 Rf2 50.Kg3 Rf3 51.Kg2–/+ Rf4 52.Rf4= Kf4 53.Kf2 Ke4 54.Ke2 Kf4 55.Kf2 e4 56.Ke2 e3 57.Ke1 Kf3 58.Kf1 Ke4 59.Ke2 Kd4 60.Ke1 Kd3 61.Kd1 Kd4 62.Ke2 Ke4 63.Ke1 Kf3 64.Kf1 e2 65.Ke1 Ke3 ½–½. j1a9n55 – jasko123jasko, kurnik, 2011.

5.Nf3 Nh5 6.Bg7 Ng7 7.c3 c6 8.e3 cb5 9.ab5 a6 10.Be2 b6 11.c4 Bb7 12.Qc2 d5 13.c5 bc5 14.Qc5 ab5?? 15.Ra8 Ba8 16.Bb5 Nd7 17.Ne5 Qe7 18.Bd7 Kf8 19.Qc8 Ne8 20.Qa8 f6 21.Be8 fe5 22.Bc6 Kg7 23.Qb7 Qb7 24.Bb7 Rb8 25.0–0 Rb7 26.Nc3 Rb2 27.Rd1 d4 28.ed4 ed4 29.Ne4 e5 30.Nc5 Kf6 31.Nd7 Kf5 32.h3 h5 33.f3 g5 34.g4 hg4 35.fg4 Kf4 36.Kg2 e4 37.Nc5 e3?? 38.Nd3 Ke4 39.Nb2 e2 40.Re1 d3 41.Kf2 Kf4 42.Nd3 Ke4 43.Ke2 (43.Ke2 Kd5 44.Rf1+–) 1–0. j1a9n55 – jasko123jasko, kurnik, 2011.

5.Nf3 Nh5 6.Bg7 Ng7 7.e3 b6 8.Nc3 Bb7 9.Bd3 d6 10.Be4 Be4 11.Ne4 d5 12.Nc3 c6 13.0–0 a6 14.Qe2 Qd7 15.e4 ab5 16.ab5 cb5?? 17.Ra8+– 0–0 18.Qb5 Qb5 19.Nb5 de4 20.Ne5 Na6 21.Rf8 Kf8 22.Nd7 Ke7 23.Nb6 Nc5 24.Ra1 Nf5 25.Ra7 Kf6 26.Nd7 Nd7 27.Rd7 Ng7 28.g3 Nh5 29.Nd6 Kg7 30.Nf7 Kf6 31.Nd6 h6 32.Ne4 Ke5 33.Nc5 Nf6 34.d4 Kf5 35.Rf7 e5 36.g4! Kg4 37.Rf6 ed4 38.Rg6 Kf5 39.Rh6 Kf4 40.Rh4 Kf3 41.Rh3 Ke2 42.Rd3 Ke1 43.h4 Ke2 44.h5 Ke1 45.h6 Ke2 46.h7 Ke1 47.h8Q Ke2 48.Qe8 (48.Qe5) 1–0. j1a9n55 – jasko123jasko, kurnik, 2011.

4.e3 Bg7

(--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.b5 e6).

5.Nf3 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.b5 0–0 5.Nf3 e6).

4.e4 d5

5.ed5 ed5= 6.Qe2 Be6 7.Nf3 Bg7 8.Ng5 Qd7 9.Ne6 fe6 =.

5.ed5 ed5= 6.Be2 c5 7.bc6 Nc6 8.Nf3 Bg7 9.0–0 0–0 =.

5.ed5 ed5= 6.Nf3 Bg7 7.Qe2 Be6 8.Ng5 Qe7 9.Ba3 Qd7 10.Nc3 h6 11.Ne6 Qe6 12.Qe6 fe6 13.Bd3 Kf7 14.0–0 a6 15.ba6 Na6 16.Rab1 b6 17.Rfe1 Nd7 18.Nd5+= Nab8 19.Re6 Ra3 20.Re7 Kg8 21.Nc7 Ne5 22.Ne8 Rh7 23.Rb6 Nbc6 24.Bc4 Kf8 25.Rg7 Rg7 26.Ng7 Kg7 27.Bb3 Nd4 28.f4 Ne2? 29.Kf2+– Nf4 30.d4 Nfd3 31.Kg3 Nc1 32.de5 Na2 33.Rb7 Kf8 34.Rf7 Ke8 35.Rf4 Nc1 36.Ra4 Rb3 37.cb3 Nb3 38.Ra7 Nd4 39.Kf4 Kf8 40.Ke4 Ne6 41.Kd5 (41.Kd5 Nf4 42.Kd6+–) 1–0. Kretschmar,Bernd – Lueckert,Bernd, corr DDR–ch MG09, 1989.

5.e5 Nfd7 A) 6.f4 a6 7.Nf3 Bh6 8.g3 Bg7 9.d4 ab5=; B) 6.Be2 c5 7.d4 cd4 8.Qd4 Bc5 9.Qf4 Qa5=; C) 6.Ne2 Bg7 7.f4 c5 8.bc6 Nc6 9.Ba3 g5=+; D) 6.Nf3 Bg7 7.d4 0–0 8.Ba3 Re8 9.Qd3 c5=.

5.e5 Ne4+= A) 6.Nf3 Bd7 7.Be2 c6 8.Nc3 Bc5 9.0–0 cb5=; B) 6.d3 Nc5 7.Nf3 a6 8.a4 c6 9.Be2 ab5+=; C) 6.Nc3 Nd7 7.Ne4 de4 8.Qe2 Nc5 9.Qe3 b6+=.

4.e4 Bg7

5.c4 0–0 6.Nc3 a6 7.a4 ab5 8.ab5= Ra1 9.Qa1 d5 10.ed5 ed5 11.Nd5 Nd5 12.Bg7 Re8 13.Ne2 f6 14.Bh6 Nb4 15.Qc3?? Nd3–+ 16.Kd1 Nf2 17.Kc1 Nh1 18.Be3 Bf5 19.g3 Be4 20.Nf4 Nd7 21.Bh3 Ne5 22.Ne6 Nd3 23.Kd1 Qe7 24.Bc5 Qf7 25.Bd4 Ndf2 26.Kc1 Nh3 27.Bf6 Re6 28.Bh8 Qf1 (28...Qf1 29.Kb2 Re7–+) 0–1. iczker – kurinskyj (1805), kurnik, 2011.

5.e5 Nd5 6.c4 Nb6 7.d4 0–0 8.Nf3 d5 9.ed6 cd6 (9...Qd6? 10.c5 Qf4 11.cb6 ab6 12.Bd3+–) 10.Nbd2 d5 11.c5 N6d7 12.Be2 Nc5 13.dc5?? (better is 13.Ba3 Ne4 14.Bf8 Bf8 15.Qc2+=) 13...Bb2–/+ 14.Rb1 Bg7 15.0–0 Bd7 16.Nb3 a6 17.ba6 ba6 18.Qc2 Nc6 19.a3 Na5 (19...e5 20.Qd2 Bf5 21.Rbe1–+) 20.Rfd1 Ba4–+ 21.Nfd4 Bd4 22.Rd4 Bb3 23.Rb3 Nb3 24.Qb3 Qc7 25.Qh3 Qc5 26.Rh4 Qc1 27.Bf1 h5 28.g4 Qh6 29.gh5 g5 30.Qg3 f5 31.f4 g4 32.h3 Rf7 33.hg4 fg4 34.Rg4 Rg7 35.Be2 Kh8 36.Qc3 Rf8 37.Qe5 Rf4 38.Qb8–/+ Kh7 39.Bd3 Rf5 40.Qg3?? Rg4–+ 41.Qg4 Qe3 42.Kh1 Qe1 43.Kg2 Qd2 44.Kh1 Qd3 45.Qg6 Kh8 46.Qe8 Kg7 47.Qg6 Kf8 48.Qh6 Ke7 49.Qg7 Kd6 50.h6 Qh3 51.Kg1 Rf1 0–1. Korepanova,Irina – Musin,Azat, Khanty Mansiysk Governor Cup, 2007.

5.e5 Nd5 6.d4 0–0 7.c4 Nb6 8.Ba3 d6 9.Nf3 Re8 10.Nbd2 de5 11.de5 c6 12.Bb2 cb5 13.cb5 a6 14.Ne4 Qd1 15.Rd1 Nc4?? 16.Bc4+– ab5 17.Bb5 Nc6 18.a3 Ra5 19.a4 Rd8 20.Rd8 Nd8 21.Nd6 Ra8 22.Ke2 Nc6 23.Rc1 h5 24.Ng5 Bh6 25.Ndf7 Bg5 26.Ng5 Bd7 27.Rd1 Ne5 28.Bd7 Nd7 29.Rd7 e5 30.Be5 Re8 31.Rg7 Kh8 32.Nf7# 1–0. orane (2110) – cookboy50, Caissa.com, 2004.

5.e5 Nd5 6.d4 0–0 7.c4 Nb6 8.h4 h6 9.h5 g5 10.Nf3 d5 11.c5 Nc4 12.Bc4 dc4 13.Qa4 Bd7 14.Qc4 a6 15.ba6 Ra6 16.0–0 Ra4 17.Qd3 Nc6 18.Nc3 Nb4? 19.Qc4+– Nc2 20.Na4 Na1 21.Ba1 Ba4 22.Qa4 Qa8 23.Qb3 Rd8 24.Rb1 Rb8 25.a4 Qa6 26.Qb5 Qa7 27.c6 b6 28.a5 (28…Qa8 29.Bc3+–) 1–0. Bonetti,Shane – comanchee, ICC, 2002.

5.e5 Nh5 6.Ne2 0–0? 7.g4+– (7…Qg5 8.gh5 Qh5 9.Ng1 Qd1 10.Kd1+–) 1–0. b4_player (1900) – srbkllr (1800), GameColony.com, 2002.

5.e5 Nh5 6.Ne2 a6? 7.g4+– ab5 8.gh5 gh5? 9.Rg1 Rg8 10.Nf4 Qh4 11.Nh5 Qh2 12.Ng7 Kf8 13.Qg4 Nc6 14.Ne6! de6 15.Qg8 Ke7 16.Bb5 Ra5 17.Ba3 (17…Ra3 18.Qg5 Kd7 19.Na3+–) 1–0. tromar (1955) – rishikesh (1745), GameColony.com, 2002.

5.e5 Nh5 6.Ne2 f5 =.

5.f3 0–0 6.g3 c6 7.a4 a6 8.ba6 Na6 9.Bc4 d5 10.ed5 cd5 11.Bb3 Bd7 12.Ba3 Re8 13.Ne2 Bc6 14.Nd4 Nh5 15.Bb2 Nf6?? 16.0–0 Nd7 17.Nc6 bc6 18.Bg7 Kg7 19.c3 c5 20.f4 c4 21.Bc2 Rb8 22.Na3 Nf6 23.Nb5 Qb6 24.Kg2 Qc6 25.Nd4 Qd7 26.a5 Ne4 27.Ba4+/– Qe7 28.Be8 Qe8 29.d3 Nc3 30.Qc2 Nb5 31.Nb5 Rb5 32.dc4 dc4 33.Qc4+– Qa8 34.Kh3?? Rb8 35.Qd4 Kg8 36.Rab1 Rd8 37.Qf6 Rf8 38.Rfe1 Nc5 39.Rb5 Ne4? 40.Re4?? Qe4= 41.a6 Qf3 42.Ra5 Qh5?? (better is 42...Ra8=+) 1–0. MasterofDisaster – georgizc, Caissa.com, 2004.

4.Nf3 Bg7

5.e3 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.b5 0–0 5.Nf3 e6).

5.e3 b6 6.d3 Bb7 7.Nbd2 0–0 8.e4 a6 9.e5 Ng4 10.h3= Nh6 11.ba6 Ba6 12.Ne4= Nc6 13.Qd2 d6 14.d4 d5 15.Ba6= Ra6 16.Nf6 Kh8 17.0–0 Ra4 18.Qc3 Na5 19.Ba3+= Rc4 20.Qd2 Bf6? 21.Bf8+– Qf8 22.ef6 Nf5 23.Rfe1 Qd8 24.Ne5 Qe8? 25.Nc4 Nc4 26.Qg5 Na3 27.Qc1 Nc4 28.c3 Qd8 29.g4 Nh4 30.Qh6 Nf3 31.Kh1 Qg8 32.Red1 Nb2 33.Rdb1 Nc4 34.Kg2 Nfd2 35.Re1 Nd6?? 36.Qd2 (36.Qd2 Ne4 37.Qe3+–) 1–0. orane – henryj, caissa.com, 2005.

5.e3 d5 6.c4 d4 7.Nd4 0–0 8.Be2 c5 9.Nb3 Nbd7 10.0–0 a6 11.Nc3 b6 12.Bf3 Rb8 13.a4 Bb7 14.ba6 Bf3 15.Qf3 Ra8 16.Nb5 Ra6 17.Rfd1 Ne8 18.d4 Nc7? 19.Rd2 Nb5 20.ab5 Ra1 21.Ba1 Qa8 22.Qa8 Ra8 23.g3 Nf6? 24.f3 cd4 25.ed4 Nd7 26.Bc3 Ra3 27.Rb2 e5 28.d5 Nc5 29.Nc5 Rc3 30.Nd7 Rc4 31.Nb6 Rd4 32.Rc2 Kf8 33.Rc6 Ke7 34.Nc8 Kd7 35.Nb6 Kd8?? 36.Rc8 Ke7 37.Rc6 Rd1?? 38.Kf2+– Rd2 39.Ke3 Rd1 40.Ke2 Rd4 41.Rc7 Kd6 42.Rd7?? Kc5 43.Na4?? Kb5?? 44.Nc3+/– Kc4 45.Na4 Rd5?? 46.Nb6+– Kc5 47.Nd5 Kc6 (47...Kc6 48.Rf7 Kd5 49.Rg7 Ke6+–). elsh1403 – anmario, kurnik, 2011.

5.e3 d5 6.Be2 0–0 7.d4 Bd7 8.a4 c6 9.0–0 cb5 10.ab5 Qb6 11.Qd3 Rc8 12.Nbd2 a6 13.c4 dc4 14.Nc4 Qc7 15.ba6 Ra6 16.Ra6 Na6 17.Rc1 Bc6 18.Nfe5 Nd7 19.Nc6 bc6 20.Ne5 Ne5 21.Qa6 Nd7 22.Bf3 c5 23.Ba3 c4 24.Bd6 Qd8 25.Bb7 Nb8 26.Qa8 Bf8 27.Bf8 Qf8 28.Bc8 Qc8 29.Rb1 Kg7 30.Qb8 Qa6 31.Qe5 Kh6 32.g4 c3 33.Qf4 Kg7 34.g5 e5 35.Qe5 f6 1–0. phildo (1860) – hector_hrc (1735), gameknot.com, 2013.

5.e3 d6 6.Be2 a6 7.c4 (7.Nc3 ab5 8.Nb5 c6=) 7...ab5 8.cb5 Nbd7 (8...e5 9.d4=) 9.a4 (9.d4 0–0=) 9...e5 10.d3 Nc5 11.Nbd2 (11.d4 ed4 12.ed4 Nd5=) 11...Bf5 12.Qc2 0–0 (12...e4 13.de4 Be4 14.Ne4 Nce4 15.0–0+/–) 13.0–0 (13.Ne5 Nd5 14.e4 Re8 15.ef5 Be5 16.Be5 Nb4+/–) 13...Qd7 (13...Qe7!?=) 14.e4+= Bg4 15.Rfc1 (15.Be5!? de5 16.Qc5+=) 15...Bh6= 16.Re1 (16.Bc3 Rfe8=) 16...Nh5 17.Be5 Bf3 18.Nf3+/– Qe6 19.Bb2 Bg7 20.Bg7 Ng7 21.d4 Qe4+/– 22.Qc4 Nce6 23.Bd3 Qf4 24.Be4 Rab8 25.Bd5 h5 26.Re4 Qf6 27.Rae1 Rfe8 28.Be6 Ne6 29.d5 Ng7 30.Qc7 Rec8 31.Qa5 g5 32.h3 Kh7 33.Qd2 Kh6 34.h4 Kh7 35.Ng5 Kg8 36.Nf3 Rc5 37.Rf4 Qg6 38.Ng5 Rc2 39.Qd4 (39…Nf5 40.Qe4 Nh4 41.Rf7 Qe4 42.Re4+–; 39.Qd1 Rf8+–) 1–0. Acevedo,Daiana – Sanz,Hernan, Najdorf U20 op, 2003.

5.e4 d6 =.

5.Ng5 h6 6.Bf6?? Qf6–+ 7.Ne4 Qa1 8.d3 Qe5 9.Nbc3 Qh5 10.Qb1 Bc3 11.Nc3 b6 12.Ne4 Qf5 13.g3 Bb7 14.Bg2 d5 15.Nc3 c6 16.0–0 0–0 17.f3 Nd7 18.g4 Qf6 19.h4 Qh4 20.f4 e5 21.f5 Qg4 22.fg6 Qg6 23.bc6 Bc6 24.Qc1 d4 25.Ne4 Be4 26.de4 f5 27.ef5 Rf5 28.Rf5 Qf5 29.Qh6 Qh7 30.Qg5 Qg7 31.Bd5 Kh8 32.Qg7 Kg7 33.Ba8 Nc5 34.Bd5 Na4 35.c4 Nc3 36.Bf3 Na2 37.Bc6 Nc3 38.e4 a5 (38...a5 39.Kf1 a4 40.Ba4 Na4–+) 0–1. blacksteelpipe – oblivion11, Live Game Caissa's Web, 2005.

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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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