1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5. 0-0 Nxe4

6.d4 (6.Re1 Nc5 7.Bxc6 dxc6 8.d4 Ne6 9.Nxe5 Bd6 10.Nc4 0-0 11.c3 Re8 12.Nbd2 a5 13.Ne4 Be7 14.Qf3 Nf8 15.Bf4 Be6 16.Ne3 h6 17.Be5 Ng6 =) 6...b5 7.Bb3 d5 (7...Be7 8.Nxe5 Nxe5 9.dxe5 Bb7 10.Qg4 0-0 11.Bh6 Ng5 12.Bxg5 Bxg5 13.Nc3 d5 14.exd6 cxd6 15.Bd5 Bxd5 16.Nxd5 Rc8 17.c3 Rc4 ± ; 7...exd4 8.Re1 d5 9.Ng5 Qxg5 10.d3 Qf5 11.dxe4 dxe4 12.Nd2 Bd6 13.Nxe4 0-0 14.Nxd6 cxd6 15.c3 Be6 16.Bc2 +) 8.dxe5 { 8.Nxe5 Nxe5 9.dxe5 c6! 10.Be3N (10.c3 =) 10...Be7 11.Nd2 Nxd2  (11....Nc5 !?) 12.Qxd2 0-0 13.Qc3 Bb7 =  Fisher- Addison, New York} 8...Be6 9.Qe2 [9.c3 Bc5 (9...Be7 10.Nbd2 Nc5 11.Bc2 Bg4 12.h3 Bh5 13.Re1 Bg6 14.Nd4 Nxd4 15.cxd4 Ne6 16.Nb3 Bg5 17.g3 Bxc1 18.Rxc1 0-0 19.f4 Bxc2 20.Rxc2 g6 21.Nc5 Re8 22.Qd3 Nxc5 23.Rxc5 Qd7 24.g4 c6 25.Qc2 Rac8 26.Rc1 Re6 27.f5 gxf5 28.gxf5 Rh6 + ) 10.Bf4 {10.Nbd2 0-0 11.Bc2 Nxf2  (11...Bf5 12.Nb3 ) 12.Rxf2 Bxf2+ 13.Kxf2 f6 14.exf6  Qxf6 15.Kg1 Rae8 16.a4 (16.Nf1) 16...Ne5 17.axb5 axb5 18.Nb3 Bg4 19.Qxd5+ Kh8 20.Be4 Bxf3 21.gxf3 Rd8 22.Ra6 Rxd5 23.Rxf6 Rd1+ 24.Kg2 Rxf6 25.Bg5 Rf7 26.Nd4 h6 27. Be3 Nc4 28.Bf2 Rd2 -+} 10...g5! 11.Be3 (11.Bg3?∆h5-h4 -+) 11...Bxe3 12.fxe3 g4 13.Nd4 Nxe5 14.Nd2 Nc5 15.a4 Ncd3 16.Qe2 0-0 17.axb5 axb5 18.Rxa8 Qxa8 19.Bc2 Nxb2 20.Qxb5 = ; 9.Be3 Nc5!? 10.Nc3!? N (10.Qe2  or 10.c3 is also playable) 10...Nxb3 11.cxb3! (11.axb3 Be7 12.Qd2 0-0 13.Rfd1 Nb4 14.Ne2 c5 15.c3 d4 16.cxb4 Bxb3 17.Qe1 Qc8 18.Bf4 Bxd1 19.Rxd1 d3 20.Rxd3 cxb4 ±) 11...Be7 (11...Nb8 !? ∆ c5) 12.Rc1 Qd7 (12...0-0 13.Nxb5 axb5 14.Rxc6 Rxa2 15.Qb1 Ra8 16.Nd4 Qd7 17.Qc2 Rfc8 18.Rc1 b4 19.f4 g6 20.Rxc7 Rxc7 21.Qxc7 Qxc7 22.Rxc7 Bf8 23.Kf2 Ra2 24.Bc1+)12...0-0 13.Ne2 Rc8 14.Nf4 0-0 15.Bc5 Rfd8 16.Bxe7 Nxe7 17.Ng5 Rf8 ±; 9.Nbd2 Nc5 10.c3 d4 11.Bxe6 (11.Ng5 Qxg5 12.Qf3 0-0-0 13.Qxc6 Qxe5 14.Nf3 Qd6 15.Nxd4 Bxb3 16.axb3 Qxc6 17.Nxc6 Rd5 18.Nd4 Kb7 19.Be3 Bd6=)11...Nxe6 12.cxd4 Ncxd4 13.a4 (13.Ne4 Be7 14.Be3 Nf5 15.Qc2 0-0 16.Rad1 Nxe3 17.fxe3 Qc8 18.Nd4 Nxd4 19.exd4 Qe6 20.Ng3 c6 21.Nf5 Rfe8 22.Nxe7+ Rxe7 23.a3 Rd8 24.Rf4 Red7 25.b4 Rd5 26.h3 h6 27.Kh1 R8d7 28.Rd3 Rd8 29.Qc3 Kh8 30.Rdf3 =) 13...Be7 14.Nxd4 Nxd4 15.axb5 Nxb5 16.Qc2!? 0-0 17.Nf3 Nd4! 18.Nxd4 Qxd4 19.Qxc7 Bb4 20.e6 fxe6 21.Be3 Qf6 22.Rfd1 Rac8 23.Qg3 a5 24.h3 Rfd8 25.Rxd8+ Rxd8 26.Qc7 Rd5 =] 9...Be7 10.Rd1 0-0 11.c4 bxc4 12.Bxc4 Bc5 13.Be3 Bxe3 14.Qxe3 Qb8 15.Bb3 Na5 16.Nbd2 Qb6 17.Qxb6 cxb6 18.Nd4 Nxd2 19.Rxd2 Rac8 20.f4 g6 21.h3 Rfe8 22.g4 Nc4 23.Re2 Bd7 24.Rc1 b5 25.Rce1 Kh8 26.Kh2 Rc7 27.Rd1 Kg7 28.Kg3 Bc8 =