1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.0-0
[Resposta mais utilizada contra a linha adotada pelas Negras, batizada como "Muro de Berlim". Dentre as demais respostas, destaca-se 4.d3, em 3.888 partidas constantes de minha base. Exemplo: 4.d3 d6 (4...Bc5 5.c3 0-0 6.0-0 d6 7.Nbd2 a6 8.Ba4 b5 9.Bb3 Bb6 10.Re1 Ne7 1/2-1/2 Adams,M (2723)-Kramnik,V (2791)/London ENG 2010 (45)) 5.0-0 Be7 6.c3 0-0 7.Nbd2 Bd7 8.Re1 Re8 9.Nf1 Bf8 10.Ba4 h6 11.Ng3 Ne7 12.Bb3 Ng6 13.d4 c5 14.h3 Qc7 15.a4 a6 0-1 Carlsen,M (2826)-Anand,V (2800)/Bilbao 2010/CBM 139/[Ftacnik] (45)]
4...Nxe4 5.d4
[5.Re1 Nd6 6.Nxe5 Be7 7.Bf1 Nxe5 8.Rxe5 0-0 9.d4 Bf6 10.Re1 Re8 11.c3 Rxe1 12.Qxe1 Nf5 13.Bd3 d5 14.Bf4 c6 15.Nd2 Nh4 16.Qe2 Bf5 17.Bxf5 Nxf5 18.Nf3 Qe7 19.Re1 Qxe2 20.Rxe2 1/2-1/2 Nakamura,H (2751)-Kramnik,V (2784)/Wijk aan Zee NED 2011]
5...Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.Qxd8+ Kxd8 9.Nc3
[9.Rd1+ Ke8 10.Nc3 Be7 11.h3 h5 12.Ne2 Be6 1/2-1/2 Kamsky,G (2730)-Ni Hua (2645)/Moscow RUS 2011 (40)]
9...h6
[9...Bd7 10.h3 b6 11.Bf4 Kc8 12.Rad1 h6 13.Bh2 a5 14.g4 Ne7 15.Nd4 h5 16.e6 fxe6 17.Rfe1 hxg4 18.hxg4 Rh6 19.g5 Rh5 20.Nxe6 Bxe6 21.Rxe6 Rxg5+ 22.Kf1 Rf5 1/2-1/2 Vachier Lagrave,M (2715)-Carlsen,M (2814)/Wijk aan Zee NED 2011 (42); 9...Ke8 10.h3 h5 11.b3 Be7 12.Bb2 Be6 13.Rad1 a5 14.a4 b6 15.Ne4 c5 16.c4 Rd8 17.Rxd8+ Kxd8 18.Rd1+ Kc8 19.Kf1 Rd8 20.Rxd8+ Kxd8 21.Ke2 Ke8 1/2-1/2 Shirov,A (2749)-Anand,V (2800)/Bilbao 2010/CBM 139 (40)]
10.h3
[10.Bd2 Be6 11.Ne2 c5 12.Bc3 g5 13.Nd2 Kd7 14.f4 Kc6 15.Rf2 Rg8 16.fxg5 hxg5 17.Ne4 Rd8 1-0 Tarrasch,S-Lasker,E/Hastings 1895/HCL (49); 10.Rd1+ Ke8 11.h3 Ne7 12.Bf4 Ng6 13.Bh2 Bb4 14.Ne2 Bd7 15.Nfd4 Bc5 16.e6 Bxe6 17.Nxe6 fxe6 18.Bxc7 Rf8 19.Bg3 Rd8 20.Nc3 Rxd1+ 21.Rxd1 Nf4 22.Ne4 Be7 23.Kf1 Rf5 1/2-1/2 Leko,P (2735)-Ponomariov,R (2733)/Astrakhan 2010/CBM 137/[Kritz] (44)]
10...Be6
[10...Bd7 11.Rd1 Kc8 12.Ne4 b6 13.g4 Ne7 14.Ng3 c5 15.Nh4N h5 16.Nxh5 g6 17.Nf6 Bc6 18.Ng2 Rxh3=/+ 19.c4 Kb7 20.Nd5 Nxd5 21.cxd5 Bd7 22.Ne3 Bg7 23.Kg2 Rah8 24.f4 Bb5 25.Kf2 g5-+ 26.Ng2 f6? 27.e6 Bh6? 28.Be3 1-0 Baeta,M (2159)-Cavalcante,R (1944)/Brasilia 2011/[Baeta, Marcio] (46); 10...Ne7 11.Bf4 Ng6 12.Bg3 Ke8 13.Rad1 Bb4 14.Ne2 h5 15.Ned4 h4 16.Bh2 Nf8 17.Bf4 Bd7 18.Bg5 Be7 19.Rfe1 c5 20.e6 fxe6 21.Bxe7 Kxe7 22.Nf5+ Kf6 23.Ne3 Be8 24.Ng4+ Ke7 25.Nge5 Bg6 26.Rd5 b6 27.Rd2 Bf5 28.Ng5 Kf6 29.f4 1-0 Carlsen,M (2772)-Naiditsch,A (2697)/Dortmund 2009/CBM 131/[Mueller,Karsten] (60)]
11.b3
[11.Rd1+ Kc8=; 11.g4 Ne7 12.Nd4 Bd7 13.f4 Nd5 14.Nxd5 cxd5 15.f5 c5 16.Nf3 g5 17.fxg6 fxg6 18.Nh4 Be8 19.Rxf8 Rxf8 20.Bxh6 Rg8 21.e6 d4 22.Re1 Bc6 23.Kf2 Ke7 24.Bg5+ Kd6 25.Bf4+ Ke7 26.Bg5+ Kd6 27.e7 Kd7 28.Kg3 Rac8 29.Kf4 1-0 Shirov,A (2737)-Vallejo Pons,F (2708)/Arvier 2010/CBM 136 Extra (46)]
11...c5
[11...a5 12.Bb2 Bb4 13.Rfd1+ Kc8 14.Ne2 a4 15.g4 Ne7 16.Nfd4 a3 17.Bc1 h5 18.Nxe6 fxe6 19.Bg5 Nd5 20.Rd3 hxg4 21.c4 Rh5 22.h4 Ne7 23.Rad1 b5 24.Rd8+ Kb7 25.Rxa8 Kxa8 26.Rd8+ Kb7 27.Nf4 Filippov,A (2531)-Bonte,A (2301)/Bucharest 2008/CBM 126 Extra/1-0 (41)]
12.Bb2 Kc8 13.Ne4 b6 14.c4=
[Houdini 2.0b Pro x64: 14.c4 Kb7 15.Rad1 a5 16.a4 Ne7 17.Rd2 Nc6 18.Rfd1 Be7 19.Nc3 Rad8 20.Nd5 Rhe8 21.Bc3 Bg5 22.Nxg5 hxg5 23.Ne3 Rxd2 24.Rxd2 Bc8 25.Rd5 g6 26.Bb2 Bf5 -0.08/21 ]
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