Houdini 1.5a x64
vs.
Deep Rybka 4.1 SSE42 x64
30-Game Chess Match
----------------------------------------------------------------------------
Score After 26 Rounds (W-L-D):
Houdini 13.5 (5-4-17) | Rybka: 12.5 (4-5-17)

----------------------------------------------------------------------------
Updated: September 5, 2011
Site: Kansas City, Missouri, USA
Contact: westportchessclub.org [AT] gmail [D0T] com
See Also: Westport Chess Club home page & Computer Chess page
Hardware: AMD Phenom(tm) 9750 Quad-Core Processor with 8 GBs Memory
Operating System: Windows 7 Professional SP1 (Build 7600) 64-bit
Time Control: 11:30:00.00 + 30 seconds per move
Tablebases: Gaviota & Nalimov 3-4-5 piece on an SSD
Opening Book: Openings chosen by TD
Hash Size (each): 1,024 MBs
Large Pages: On
Ponder: Off
PGNs

Watch the current game live!

View the current game here (if one is in progress).
 
Competitors Round Date ECO Result
Houdini - Rybka 1 2011/06/25 B99: Sicilian: Najdorf, Modern Main Line, Perenyi: 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.0-0-0 Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7 13.f5 Nc5 14.f6 gxf6 15.gxf6 Bf8 16.Rg1 h5 (View game 1 here.) 1/2-1/2
Rybka - Houdini 2 2011/06/27 B99: Sicilian: Najdorf, Modern Main Line, Perenyi: 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.0-0-0 Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7 13.f5 Nc5 14.f6 gxf6 15.gxf6 Bf8 16.Rg1 h5 (View game 2 here.) 1/2-1/2
Houdini - Rybka 3 2011/06/28 E59: Nimzo-Indian: Main Line: 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3 dxc4 10.Bxc4 Qc7 11.Ba2 e5 12.h3 e4 13.Nh2 Na5 (View game 3 here.) 0-1
Rybka - Houdini 4 2011/06/30 E59: Nimzo-Indian: Main Line: 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3 dxc4 10.Bxc4 Qc7 11.Ba2 e5 12.h3 e4 13.Nh2 Na5 (View game 4 here.) 1/2-1/2
Houdini - Rybka 5 2011/07/09 C99: Spanish: Closed, Chigorin: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 13.cxd4 Nc6 14.Nb3 a5 15.Be3 a4 16.Nbd2 Bd7 17.Rc1 Qb7 (View game 5 here.) 1-0
Rybka - Houdini 6 2011/07/16 C99: Spanish: Closed, Chigorin: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 13.cxd4 Nc6 14.Nb3 a5 15.Be3 a4 16.Nbd2 Bd7 17.Rc1 Qb7 (View game 6 here.) 1/2-1/2
Houdini - Rybka 7 2011/07/18 E99: King's Indian: Mar del Plata: 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Be3 f5 11.f3 f4 12.Bf2 g5 13.a4 a5 14.Nd3 b6 15.b4axb4 16.Nxb4 Nf6 (View game 7 here.) 1/2-1/2
Rybka - Houdini 8 2011/07/24 E99: King's Indian: Mar del Plata: 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Be3 f5 11.f3 f4 12.Bf2 g5 13.a4 a5 14.Nd3 b6 15.b4axb4 16.Nxb4 Nf6 (View game 8 here.) 1/2-1/2
Houdini - Rybka 9 2011/07/25 B76: Sicilian: Dragon, Yugoslav: 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.O-O-O d5 10.exd5 Nxd5 11.Nxc6 bxc6 12.Bd4 e5 13.Bc5 Be6 14.Ne4Re8 15.h4 h6 16.g4 Qc7 17.g5 h5 18.Bc4 Red8 19.Qf2 a5 (View game 9 here.) 1/2-1/2
Rybka - Houdini 10 2011/07/27 B76: Sicilian: Dragon, Yugoslav: 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.O-O-O d5 10.exd5 Nxd5 11.Nxc6 bxc6 12.Bd4 e5 13.Bc5 Be6 14.Ne4Re8 15.h4 h6 16.g4 Qc7 17.g5 h5 18.Bc4 Red8 19.Qf2 a5 (View game 10 here.) 1-0
Houdini - Rybka 11 2011/07/29 D68: Queen's Gambit Declined: Orthodox, Classical: 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.Rc1 c6 8.Bd3
dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5 (View game 11 here.)
1/2-1/2
Rybka - Houdini 12 2011/07/30 D68: Queen's Gambit Declined: Orthodox, Classical: 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 O-O 6.e3 Nbd7 7.Rc1 c6 8.Bd3
dxc4 9.Bxc4 Nd5 10.Bxe7 Qxe7 11.O-O Nxc3 12.Rxc3 e5 (View game 12 here.)
1/2-1/2
Houdini - Rybka 13 2011/08/03 D17: Slav: Central, Carlsbad, Main Line: 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 Nbd7 7.Nxc4 Qc7 8.g3 e5 9.dxe5 Nxe5 10.Bf4 Nfd7 (View game 13 here.) 1/2-1/2
Rybka - Houdini 14 2011/08/04 D17: Slav: Central, Carlsbad, Main Line: 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 Nbd7 7.Nxc4 Qc7 8.g3 e5 9.dxe5 Nxe5 10.Bf4 Nfd7 (View game 14 here.) 1/2-1/2
Houdini - Rybka 15 2011/08/06 C18: French Winawer: 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 Kf8 8.h4 Qa5 9.Bd2 Qa4 (View game 15 here.) 1-0
Rybka - Houdini 16 2011/08/12 C18: French Winawer: 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 Kf8 8.h4 Qa5 9.Bd2 Qa4 (View game 16 here.) 1-0
Houdini - Rybka 17 2011/08/17 D89: Grunfeld: Classical Exchange, Main Line: 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 Nc6 9.Be3 O-O 10.O-O Bg4 11.f3 Na5 12.Bd3 cxd4 13.cxd4 Be6 (View game 17 here.) 1/2-1/2
Rybka - Houdini 18 2011/08/19 D89: Grunfeld: Classical Exchange, Main Line: 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 7.Bc4 c5 8.Ne2 Nc6 9.Be3 O-O 10.O-O Bg4 11.f3 Na5 12.Bd3 cxd4 13.cxd4 Be6 (View game 18 here.) 1/2-1/2
Houdini - Rybka 19 2011/08/20 C54: Giuoco Piano (Italian Game): Moller-Herzog Variation: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O Bxc3 9.d5 Bf6 10.Re1 Ne7 11.Rxe4 d6 12.Bg5 Bxg5 13.Nxg5 h6 14.Qe2 hxg5 15.Re1 Be6 16.dxe6 f6 (View game 19 here.) 1-0
Rybka - Houdini 20 2011/08/22 C54: Giuoco Piano (Italian Game): Moller-Herzog Variation: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O Bxc3 9.d5 Bf6 10.Re1 Ne7 11.Rxe4 d6 12.Bg5 Bxg5 13.Nxg5 h6 14.Qe2 hxg5 15.Re1 Be6 16.dxe6 f6 (View game 20 here.) 0-1
Houdini - Rybka 21 2011/08/23 D48: Semi-Slav: Meran: 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 (View game 21 here.) 0-1
Rybka - Houdini 22 2011/08/25 D48: Semi-Slav: Meran: 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 9.e4 c5 (View game 22 here.) 1/2-1/2
Houdini - Rybka 23 2011/08/31 A36: English: Symmetrical, Botvinnik System: 1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.e4 d6 6.Nge2 c5 7.O-O Nc6 8.d3 a6 9.h3 Rb8 10.a4 Ne8 (View game 23 here.) 1/2 - 1/2
Rybka - Houdini 24 2011/09/01 A36: English: Symmetrical, Botvinnik System: 1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 O-O 5.e4 d6 6.Nge2 c5 7.O-O Nc6 8.d3 a6 9.h3 Rb8 10.a4 Ne8 (View game 24 here.) 0-1
Houdini - Rybka 25 2011/09/03 B19: Caro-Kann: Classical, Spassky Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 e6 11.Bf4 Qa5+ 12.Bd2 Bb4 13.c3 Be7 14.c4 Qc7 15.O-O-O Ngf6 (View game 25 here.) 1/2-1/2
Rybka - Houdini 26 2011/09/04 B19: Caro-Kann: Classical, Spassky Variation: 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 e6 11.Bf4 Qa5+ 12.Bd2 Bb4 13.c3 Be7 14.c4 Qc7 15.O-O-O Ngf6 (View game 26 here.) 1/2-1/2