(24) Nick Casares - Andrew Yun
BCC July-Aug Marathon Berkeley (3), 23.07.2004

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Diagram

Evans Gambit4...Bxb4 5.c3 Be7 6.d4 Diagram

6...exd4 [ 6...d6 7.Qb3 Na5 8.Bxf7+ Kf8 9.Qa4 c6 10.Bxg8 b5 11.Qc2 Kxg8 12.0-0 Bf6 13.a4 Be6 14.Rd1 Bb3 15.Qe2 Bxd1 0-1 Alekhine,A-Rengifo,C/Santiago de Chile 1927/EXT 99 (15); 6...Bf6 7.dxe5 Nxe5 8.Nxe5 Bxe5 9.Bxf7+ Kxf7 10.Qd5+ Kf6 11.f4 Bxc3+ 12.Nxc3 c6 13.Qg5+ Congres international des echecs, 1869. 1-0 Winawer,S-D'Andre,B/Paris 1867/EXT 2002 (13)] 7.Qb3 [ 7.0-0 Nh6 8.cxd4 0-0 9.d5 Bf6 10.dxc6 Bxa1 11.Bxh6 gxh6 12.cxb7 Bxb7 13.e5 Bxf3 14.gxf3 Bxe5 15.f4 Bxf4 16.Kh1 Qf6 17.Qf3 Kh8 18.Bd3 Rae8 19.Qh3 Rg8 20.Na3 Qc6+ 21.f3 Re5 22.Qh4 Bg5 23.Qg3 Re3 24.Be4 Qa6 25.Rg1 Rxa3 26.h4 Qe6 27.Rg2 Qxe4 28.hxg5 Rxf3 Christiaan Bijl: Das II. Internationale Schachmeisterturnier Wien 1882, p. 186. 0-1 Bird,H-Steinitz,W/Vienna 1882/EXT 2002 (28)] 7...Na5 8.Bxf7+ Kf8 Diagram

9.Qb5 Fritz rates the main line half a pawn short of "book." [ 9.Qa4 Kxf7 10.Qxa5 dxc3 Diagram

is a book variation (a david) with a wopping two examples in my 3 million game database. (kayvey) ( 10...d6 11.cxd4 Nf6 12.Nc3 c6 13.Ng5+ Kg8 14.Qa4 d5 15.e5 Ne8 16.f4 h6 17.Nf3 g5 18.0-0 g4 19.f5 gxf3 20.f6 Nxf6 21.Rxf3 Kg7 22.exf6+ Bxf6 23.Be3 Bg4 24.Rg3 h5 25.h3 Bh4 26.Bf4 Bxg3 27.Bxg3 Bf5 28.Be5+ Kh6 29.Bxh8 Qxh8 30.Rf1 Rf8 31.Qb4 Qg7 32.Ne2 Rg8 33.Nf4 Bxh3 34.Re1 Bf5 35.Qd6+ Kg5 36.Re5 Kg4 37.Nxh5 Qg5 38.Nf6+ Kh4 39.Nxg8 Qc1+ 40.Kh2 time. 0-1 Lehmann,H-Donner,J/Munich 1954/EXT 99 (40)) 11.Qd5+ Kf8 12.Qf5+ ( 12.Nxc3 d6 13.0-0 Bf6 14.Bb2 Ne7 15.Qc4 Nc6 16.h3 Qe8 17.Rae1 Be6 18.Qd3 Qf7 19.Nd2 Ne5 20.Qc2 Nc4 21.Nxc4 Bxc4 22.Ne2 Bxa2 23.Bxf6 gxf6 24.Rc1 c6 25.Nd4 Be6 26.f4 Kg7 27.e5 f5 28.exd6 Rhd8 29.Qc3 Kg8 30.Rf3 Bc8 31.Rg3+ Kf8 32.Ne6+ Bxe6 33.Qh8+ Qg8 34.Rxg8+ Bxg8 35.Qf6+ Bf7 36.Re1 Kg8 37.Re7 Rf8 38.h4 h5 39.Re3 1-0 Chuah Jin,H-Barron,K/Kuala Lumpur 2002/CBM 89 ext (39)) 12...Ke8 13.e5 d5 14.e6 Nf6 15.Bg5 g6 16.Qe5 Rf8 17.Bh6 Rg8 18.0-0 Bd6 19.Qxc3 Ne4 20.Qc1 Bxe6 21.Nc3 Nxc3 22.Qxc3 Be7 23.Rfe1 Kd7 24.Nd4 Bf7 25.Qh3+ Kd6 26.Bf4+ Kc5 27.Rec1+ 1-0 Braun,A-Seidler,O/Buehl 1983/EXT 2003 (27)] 9...Kxf7 [ 9...c6! 10.Qf5 Nf6 11.Bb3 Nxb3 12.axb3 dxc3 looks good for Black] 10.Qd5+ Kf8 Diagram

11.Ne5?! [ 11.Qxa5 is simpler and probably better] 11...Qe8 12.Qxa5 Bf6 [ 12...d6] 13.cxd4 d6 14.Ba3 [ 14.Nf3 Qxe4+ 15.Be3 b6 16.Qa4] 14...Ne7 [ 14...c5 is better (kayvey/Fritz)] 15.Nf3 Nc6! 16.Qd5 [ 16.Qxc7? Qxe4+ 17.Kd1 Qd3+ 18.Nfd2 ( 18.Nbd2 Qxa3) 18...Qxd4 19.Re1 ( 19.Bxd6+ Kg8 20.Re1 Bf5) 19...Bf5 20.Bxd6+ Kg8 and white is busted (kayvey)] 16...Be6 17.Bxd6+ Kf7?! [ 17...Kg8 18.Qc5 cxd6 19.Qxd6 Rd8; 17...cxd6 18.Qxd6+ Kg8 19.e5 Rd8 20.Qc5 Be7] 18.Qh5+?! [ 18.Ng5+! Bxg5 19.Qxg5 cxd6 20.d5 Nd4 ( 20...Nb4 21.dxe6+ Qxe6 22.Qh5+) 21.dxe6+ Qxe6 though Black still looks better 22.Qf4+] 18...g6 19.Qh6 Diagram

[ 19.Qc5 cxd6 20.Qxd6 Rd8 21.Qf4 Nxd4 22.Nxd4 g5 ( 22...Rxd4) 23.Qf3 g4 24.Qf4 Rxd4] 19...cxd6 20.e5?! dxe5 21.Nbd2 Nxd4 22.Rc1 Rc8 23.Rxc8 Nxf3+ 24.Nxf3 Qxc8 25.0-0 Bd5 26.Re1 Bxf3 27.gxf3 Qc3 28.Rd1 Qxf3 0-1