Zappa versus Rybka 2007

Home * Tournaments and Matches * Zappa versus Rybka 2007



Zappa versus Rybka 2007, was a 10 game computer chess match between Zappa and Rybka, held from September 20 to 27, 2007 as frame program during the final of the World Chess Championship 2007 in Mexico City, Mexico. The match was scheduled after Rybka author Vasik Rajlich made a $100,000 publicity challenge in May 2007 to the FIDE, to play the winner of the Deep Fritz versus Deep Junior 2007 match, Deep Fritz or Deep Junior, even offering odds of a game in a 24 game match , but negotiations between Rybka and Junior teams broke down due to disputes over on-site machines. David Levy served as arbiter. Zappa, operated by book author Erdogan Günes won by 5½–4½ and the prize money of $10,000. A key game was the 180-move fourth game, where Erdogan, who smelled a weakness, insisted on playing on after a draw offer by the Rybka team. Due to the fifty-move rule, Rybka gave a pawn to avoid an immediate draw, and later two more pawns to eventually lose the game and match.

=Photos= Start of round 2, Larry Kaufman, Dagh Nielsen, Susan Polgar, David Levy, Erdogan Günes Final press conference, Anthony Cozzie, David Levy and Vasik Rajlich

=Games=

Game 1
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.20"] [Round "1"] [White "Zappa"] [Black "Rybka"] [Result "1/2-1/2"]

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 Bb7 10.d4 Re8 11.Nbd2 Bf8 12.a4 h6 13.Bc2 exd4 14.cxd4 Nb4 15.Bb1 c5 16.d5 Nd7 17.Ra3 f5 18.exf5 Rxe1+ 19.Qxe1 bxa4 20.f6 Nxf6 21.Qe6+ Kh8 22.Nh4 g5 23.Ng6+ Kg7 24.h4 Qd7 25.hxg5 hxg5 26.Rg3 Nbxd5 27.Qxd7+ Nxd7 28.Rxg5 N5b6 29.Ne4 Bxe4 30.Bxe4 Re8 31.Ne5+ Kf6 32.Ng4+ Ke7 33.Bg6 Rc8 34.Bf5 Re8 35.Bg6 Rc8 36.Ne3 c4 37.Rh5 c3 38.bxc3 Rxc3 39.Bb2 Rb3 40.Bd4 Rb5 41.Rh7+ Kd8 42.Bd3 Rb4 43.Nc2 Rb1+ 44.Kh2 d5 45.Bf5 Bd6+ 46.g3 Rd1 47.Bc3 Bc5 48.Ba5 Ke8 49.Bg6+ Kf8 50.Ne3 Bxe3 51.fxe3 Ne5 52.Bxb6 Nxg6 53.Ra7 Rc1 54.Rxa6 Rc4 55.Bd4 Ne7 56.Kh3 Nc6 57.Bh8 Kf7 58.g4 Nb8 59.Ra7+ Ke6 60.Kg3 Nc6 61.Ra6 Ke7 62.Ra8 Re4 63.Ra6 Kd7 64.g5 Rxe3+ 65.Kg4 Re4+ 66.Kf3 Nd4+ 67.Bxd4 Rxd4 68.Ra7+ Ke6 69.g6 Kf5 70.g7 Rf4+ 71.Kg2 Rg4+ 72.Kf3 Rg6 73.Rxa4 Rxg7 1/2-1/2

Game 2
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.21"] [Round "2"] [White "Rybka"] [Black "Zappa"] [Result "1-0"]

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 Bd7 14.Nf1 Rac8 15.Ne3 Rfe8 16.b3 Nc6 17.Bb2 Bd8 18.Rc1 Qa7 19.dxe5 dxe5 20.Re2 Qb7 21.a3 Be6 22.Nd5 Ne7 23.Nxe7+ Bxe7 24.Nxe5 Red8 25.Qe1 b4 26.a4 Nh5 27.Nf3 Nf4 28.Rd2 Qb6 29.Be5 Rxd2 30.Qxd2 Ng6 31.Bd4 Qd8 32.Be3 Qxd2 33.Bxd2 h6 34.Kf1 Rd8 35.Be3 Bf6 36.a5 Bb2 37.Rd1 Rc8 38.Bd3 Ne5 39.Nxe5 Bxe5 40.Rb1 Rc6 41.Ke2 Bc7 42.Bd2 Bxa5 43.Ra1 Bd8 44.Bxb4 Bxb3 45.Rxa6 Rxa6 46.Bxa6 g5 47.Kd3 Bb6 48.f3 Kg7 49.Bc4 Ba4 50.e5 Bf2 51.Ke4 Bg3 52.Bc3 Kg6 53.Kd5 Bc2 54.Kd6 f6 55.Ke6 Bf5+ 56.Kd5 fxe5 57.Bxe5 Be1 58.g4 Bc2 59.Ke6 h5 60.Bd5 hxg4 61.hxg4 Ba4 62.Be4+ Kh6 63.Kf6 Bb4 64.f4 Bd2 65.Bg6 Bb3 66.f5 Bb4 67.Bf7 Bc2 68.Bd4 Bd1 69.Bh5 Bb3 70.Ke5 Bc4 71.f6 Ba3 72.Bb6 Bb2+ 73.Kf5 Bd3+ 74.Ke6 Bc4+ 75.Ke7 Ba3+ 76.Kd7 Bb5+ 77.Ke6 Bc4+ 78.Kf5 Bd3+ 79.Ke5 Bb2+ 80.Bd4 Ba3 81.Kd5 Kh7 82.Be3 Bc2 83.Bxg5 Bb3+ 84.Ke5 Bd1 85.Ke6 Bb3+ 86.Kd7 Ba4+ 87.Kd8 Bb4 88.f7 Ba5+ 89.Ke7 Bb4+ 90.Ke6 Bb3+ 91.Kf6 Bc3+ 92.Kf5 Bc2+ 93.Ke6 Bb3+ 94.Kd7 Ba4+ 95.Kc8 Bb4 96.Bd2 Bc5 97.g5 Bc2 98.Kd7 Ba4+ 99.Kd8 Bc2 100.Bf4 Kg7 101.Be5+ Kh7 102.Bf6 Bg6 103.Be7 Bb6+ 104.Kd7 Bxf7 105.Bxf7 Kg7 106.Ke6 Bd4 107.Be8 Bb2 108.Bf6+ Kf8 109.Bxb2 Kxe8 110.g6 1-0

Game 3
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.22"] [Round "3"] [White "Zappa"] [Black "Rybka"] [Result "1-0"]

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.d4 Bg4 10.Be3 exd4 11.cxd4 Na5 12.Bc2 c5 13.h3 Bh5 14.g4 Bg6 15.Nbd2 Nc6 16.d5 Na5 17.a3 Re8 18.b4 Nb7 19.a4 cxb4 20.Nd4 Nc5 21.Nc6 Qc8 22.f3 Nfd7 23.axb5 Bh4 24.Rf1 Bf6 25.Rb1 axb5 26.Rxb4 Nb8 27.Nxb8 Rxb8 28.Qb1 Qd7 29.Bd3 Nxd3 30.Qxd3 Rec8 31.Rfb1 Rc3 32.Rxb5 Rbc8 33.Qe2 h6 34.Rb8 Kh7 35.Rxc8 Qxc8 36.f4 Kh8 37.Kg2 Qe8 38.f5 Bh7 39.Rb6 Qe5 40.Bf2 Rc2 41.Qd3 Ra2 42.Rb1 Qf4 43.Qe3 Qe5 44.Nf3 Qe8 45.Qb3 Ra8 46.Bg3 Qd8 47.Rc1 Qe7 48.Re1 Qd8 49.Rc1 Qe7 50.Rc4 Bg8 51.h4 Qd8 52.Rc6 Be7 53.g5 hxg5 54.hxg5 Rb8 55.Qc3 Ra8 56.Bf4 Bh7 57.Rc7 Rb8 58.Qc6 Qe8 59.Qxe8+ Rxe8 60.Nd2 Bg8 61.Kf3 g6 62.f6 Bf8 63.Nc4 Rd8 64.Rc6 Ra8 65.Bxd6 Bxd6 66.Nxd6 1-0

Game 4
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.22"] [Round "4"] [White "Rybka"] [Black "Zappa"] [Result "0-1"]

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 Bb7 10.d4 Re8 11.Nbd2 Bf8 12.a4 h6 13.Bc2 exd4 14.cxd4 Nb4 15.Bb1 c5 16.d5 Nd7 17.Ra3 c4 18.axb5 axb5 19.Nd4 Qb6 20.Nf5 Ne5 21.Rg3 g6 22.Nf3 Ned3 23.Be3 Qd8 24.Bxh6 Qf6 25.Qd2 Nxe1 26.Bxf8 Nxf3+ 27.Rxf3 Kxf8 28.Nh6 Qg7 29.Rxf7+ Qxf7 30.Nxf7 Kxf7 31.Qxb4 Ra1 32.Qxb5 Rxb1+ 33.Kh2 Re7 34.Qb4 Rd7 35.Qd2 Kg8 36.Qc2 Ra1 37.Qxc4 Ra8 38.b4 Rf8 39.f3 Rc8 40.Qd4 Rf7 41.h4 Rcc7 42.b5 Rc5 43.Qb4 Kh7 44.b6 Rd7 45.Qa4 Re7 46.Kg3 Rc8 47.Qb4 Rd8 48.Kf4 Bc8 49.g4 Rf8+ 50.Ke3 Rd8 51.h5 gxh5 52.gxh5 Bb7 53.Qb2 Rf8 54.Qh2 Rf6 55.Qh4 Ref7 56.f4 Rh6 57.Qg5 Ba8 58.Kd3 Bb7 59.Kd4 Rhf6 60.f5 Ba6 61.Kc3 Bb7 62.Kb4 Ba6 63.Ka5 Bb7 64.Kb5 Ba8 65.Qg6+ Kh8 66.Qg3 Bb7 67.Qf4 Rh7 68.Qd2 Rhh6 69.Qg5 Kh7 70.Kc4 Ba6+ 71.Kd4 Bb7 72.Kc3 Bc8 73.Kc2 Ba6 74.Kb2 Bb7 75.Kc1 Ba6 76.Kc2 Bb7 77.Kb2 Ba6 78.Kb3 Bb7 79.Kc2 Ba6 80.Kc1 Kh8 81.Kb1 Kh7 82.Ka2 Bb7 83.Kb3 Kh8 84.Kb4 Kh7 85.Kb5 Kh8 86.Ka4 Kh7 87.Ka5 Kh8 88.Qh4 Rf7 89.Qf4 Kh7 90.Kb5 Rff6 91.Qc1 Rf7 92.Qa3 Rg7 93.Qf3 Rf6 94.Qc3 Rgf7 95.Qd2 Rh6 96.Qg2 Rg7 97.Qh2 Kg8 98.Qh4 Kh7 99.Qh1 Rf7 100.Ka5 Rg7 101.Qh4 Rd7 102.Qg3 Rg7 103.Qf3 Re7 104.Kb5 Rg7 105.Qc3 Rf7 106.Qh3 Rhf6 107.Qe3 Rg7 108.Qc1 Rgf7 109.h6 Rxh6 110.Qd2 Kg7 111.Qg5+ Kh7 112.Kb4 Rhf6 113.Kc4 Ba6+ 114.Kb3 Bc8 115.Kc3 Ba6 116.Kb2 Rh6 117.Kb3 Rg7 118.Qc1 Re7 119.Qf4 Rb7 120.f6 Rf7 121.Qxd6 Rhxf6 122.Qe5 Rxb6+ 123.Kc3 Rh6 124.Kd4 Be2 125.Qe8 Bh5 126.Qd8 Bg4 127.e5 Rd7 128.Qe8 Kg7 129.Qb8 Be6 130.d6 Rh4+ 131.Ke3 Kg6 132.Qf8 Rf7 133.Qd8 Rb4 134.Qe8 Kf5 135.Qh8 Rb3+ 136.Kd4 Kg4 137.Qg8+ Kf3 138.Qa8+ Kg3 139.Qg8+ Kf2 140.Qg5 Rb4+ 141.Kc5 Rff4 142.d7 Bxd7 143.Qh5 Rfc4+ 144.Kd6 Rd4+ 145.Ke7 Bg4 146.Qh2+ Kf3 147.e6 Re4 148.Qh1+ Kf4 149.Qc1+ Kf5 150.Qf1+ Ke5 151.Qa1+ Rbd4 152.Qg1 Bxe6 153.Qg5+ Bf5 154.Qg3+ Kd5+ 155.Kf6 Rf4 156.Qb3+ Kc6 157.Kg5 Bd7 158.Qc2+ Rc4 159.Qg2+ Kc5 160.Qg1+ Kd5 161.Qg2+ Ke6 162.Qg3 Rf8 163.Qh3+ Ke7 164.Qe3+ Kf7 165.Qf2+ Kg8 166.Qa2 Be6 167.Qa1 Rg4+ 168.Kh6 Rc8 169.Qa6 Bd7 170.Qa2+ Rcc4 171.Qa7 Rcd4 172.Qa2+ Kf8 173.Qb3 Ke7 174.Qa3+ Rb4 175.Qe3+ Kf6 176.Qf3+ Rgf4 177.Qc3+ Rbd4 178.Qf3 Rxf3 179.Kh7 Bf5+ 180.Kh8 Rd8# 0-1

Game 5
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.23"] [Round "5"] [White "Zappa"] [Black "Rybka"] [Result "1-0"]

1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nf6 6.e5 dxe5 7.Nxe5 Qc8 8.Nc3 Nc6 9.Re1 Nxe5 10.Rxe5 e6 11.d3 Qc6 12.Re1 Be7 13.b3 O-O 14.Bb2 Rad8 15.Qe2 Nd7 16.Ne4 f5 17.Nd2 Bf6 18.Bxf6 Rxf6 19.Nf3 Qc7 20.Qd2 Nb8 21.Re3 Nc6 22.Rae1 Qd6 23.Qe2 Re8 24.Ng5 Rh6 25.h3 Nd4 26.Qd1 Qd8 27.Nf3 Nc6 28.Ne5 Qc7 29.Qc1 Rf6 30.Nxc6 Qxc6 31.Re5 Rg6 32.g3 Rh6 33.Kh2 b6 34.Qe3 Rf6 35.Re2 Qd6 36.a4 h6 37.a5 g5 38.Qf3 Re7 39.Kg1 Kf8 40.Re1 Kg7 41.axb6 axb6 42.Qa8 Rf8 43.Qa1 Rf6 44.R1e2 Kf7 45.Qa8 Qd7 46.Re1 Re8 47.Qf3 Kg7 48.Kf1 Qc8 49.Kg1 Qd7 50.Kf1 Qc8 51.Ra1 Rf7 52.Kg1 Qd7 53.Rb1 Qd6 54.Rbe1 Ree7 55.Qa8 Rf8 56.Qa6 Rd8 57.Qa1 Kg6 58.R1e2 Kf7 59.R2e3 Rf8 60.Qa4 Kf6 61.Qa6 f4 62.gxf4 gxf4 63.Re2 Rg8+ 64.Kf1 Rg5 65.Qc4 Rf5 66.Ke1 Qxe5 67.Rxe5 Rxe5+ 68.Kf1 Kg5 69.Qa6 f3 70.Qxb6 Rf7 71.Qd8+ Kg6 72.Qg8+ Rg7 73.Qb8 Rf5 74.d4 Kh5 75.Qe8+ Rg6 76.dxc5 Rxc5 77.c4 Rcg5 78.Ke1 Re5+ 79.Kd2 Re2+ 80.Kc3 Rxf2 81.Qf7 Rfg2 82.Qxf3+ Kh4 83.Kb4 R2g3 84.Qb7 h5 85.c5 Rg7 86.Qb6 Re7 87.c6 Rgg7 88.Qe3 e5 89.Kc5 e4 90.Kd6 Ref7 91.b4 Rg6+ 92.Ke5 Rg5+ 93.Ke6 Rfg7 94.Qxe4+ Kxh3 95.Kf6 Rg4 96.Qh1+ Kg3 97.Qxh5 Rg8 98.Qxg4+ Rxg4 99.b5 Rc4 100.Ke5 Rc5+ 101.Kd6 Rxb5 102.c7 Rb6+ 103.Kd5 Rb5+ 104.Kd4 Rb4+ 105.Kc3 Rb1 106.Kc2 Rf1 107.c8=Q Rf3 108.Kd2 Kf4 109.Qc6 Rf2+ 110.Kd3 Kg5 111.Qc1+ Rf4 112.Ke3 Rf6 113.Ke4+ Kg6 114.Qc3 Re6+ 115.Kd5 Re8 116.Qc6+ Kf7 117.Qd7+ Re7 118.Qf5+ Kg7 119.Kd6 Ra7 120.Qe5+ Kh7 121.Ke6 Ra2 122.Qc7+ Kg6 123.Qc4 Ra5 124.Qd3+ Kh5 125.Kf6 Kh4 126.Qc4+ Kh5 127.Qe2+ Kh4 128.Qe1+ Kg4 129.Qxa5 Kf3 1-0

Game 6
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.24"] [Round "6"] [White "Rybka"] [Black "Zappa"] [Result "1/2-1/2"]

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 Bb7 10.d4 Re8 11.Nbd2 Bf8 12.a4 h6 13.Bc2 exd4 14.cxd4 Nb4 15.Bb1 c5 16.d5 Nd7 17.Ra3 c4 18.axb5 axb5 19.Nd4 Qb6 20.Nf5 Ne5 21.Rg3 g6 22.Nf3 Ned3 23.Be3 Qd8 24.Bxh6 Qf6 25.Qd2 Nxe1 26.Bxf8 Nxf3+ 27.Rxf3 gxf5 28.Rxf5 Qg6 29.Rg5 Qxg5 30.Qxg5+ Kxf8 31.Qh6+ Kg8 32.Kh2 Ra1 33.Qxd6 Rxb1 34.Qxb4 Rxe4 35.Qxb5 c3 36.Qxb7 Kg7 37.d6 c2 38.Qxe4 c1=Q 39.d7 Qg1+ 40.Kg3 Rd1 41.Qf5 f6 42.Qe4 Rd2 43.d8=Q Qxf2+ 44.Kh2 Rxd8 45.Qe7+ Kg6 46.Qxd8 Qf4+ 47.Kg1 Qc1+ 48.Kf2 Qxb2+ 49.Kf3 Qc3+ 50.Ke2 Qe5+ 51.Kd1 Qa1+ 52.Kd2 1/2-1/2

Game 7
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.25"] [Round "7"] [White "Zappa"] [Black "Rybka"] [Result "1/2-1/2"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 Qa5 8.O-O O-O 9.Nb3 Qd8 10.Be2 d6 11.f4 b6 12.a3 Bb7 13.Qd3 Nd7 14.Rad1 Nc5 15.Nxc5 bxc5 16.Qd2 Nd4 17.Bd3 Rc8 18.Ne2 Qc7 19.b3 a5 20.f5 a4 21.Nxd4 cxd4 22.Bh6 axb3 23.Bxg7 Kxg7 24.cxb3 Qc3 25.Qa2 Qa5 26.b4 Qe5 27.Qd2 Ra8 28.Ra1 Rfc8 29.Rf3 Ba6 30.Rh3 h5 31.a4 Bxd3 32.Rxd3 Rc4 33.fxg6 fxg6 34.Rf3 Rc7 35.a5 Qxe4 36.Raf1 e5 37.b5 Qd5 38.b6 Rd7 39.Qg5 Kh7 40.g4 Rg7 41.Rg3 d3 42.gxh5 Qxa5 43.hxg6+ Kg8 44.h4 e4 45.Qg4 Qxb6+ 46.Kh2 Re8 47.h5 Qb2+ 48.Kh3 Qe2 49.Qf5 d2 50.h6 Qc4 51.Ra3 Qc8 52.Qxc8 Rxc8 53.hxg7 e3 54.Rxe3 Rc1 55.Rf7 Rh1+ 56.Kg2 Rg1+ 57.Kh2 Rh1+ 58.Kg3 Rg1+ 59.Kf2 Rf1+ 60.Kxf1 d1=Q+ 61.Kf2 Qc2+ 62.Kf3 Qxg6 63.Rf4 Qh5+ 64.Kg3 Qg5+ 65.Kf3 Qh5+ 66.Kf2 Kxg7 1/2-1/2

Game 8
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.26"] [Round "8"] [White "Rybka"] [Black "Zappa"] [Result "1-0"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.d3 b5 7.Bb3 Bb7 8.Nc3 O-O 9.Re1 d6 10.a3 Qd7 11.h3 Rae8 12.a4 b4 13.Nd5 Na5 14.Nxe7+ Qxe7 15.Ba2 Rb8 16.Nh4 Bc8 17.Bg5 Kh8 18.Nf5 Bxf5 19.exf5 Qd7 20.g4 b3 21.Bxb3 Nxb3 22.cxb3 c5 23.Ra3 Ng8 24.Qe2 f6 25.Bd2 Ne7 26.d4 Nc6 27.dxe5 Nd4 28.Qxa6 Nf3+ 29.Kg2 Nxe1+ 30.Bxe1 dxe5 31.Qc4 Rfd8 32.a5 Qa7 33.Bc3 Rd1 34.f3 h6 35.Qe2 Rbd8 36.Be1 R1d4 37.Ra1 Rd3 38.Bc3 R8d6 39.h4 Qa6 40.Kg3 Qb7 41.Kg2 Kg8 42.Ra3 Qa6 43.Qe4 Kh8 44.Qc4 Qb7 45.Qe4 Qa7 46.Qe2 Qa6 47.Kg3 c4 48.b4 Qa7 49.Kg2 Rd1 50.Be1 Qd7 51.Kg3 R6d3 52.a6 Rxa3 53.bxa3 Rd3 54.Bf2 Qd5 55.a7 Rxa3 56.b5 Qxb5 57.Qe4 Qe8 58.Qb7 Qd8 59.Qb8 Qg8 60.g5 Ra2 61.Be1 Ra6 62.Bc3 Ra2 63.Kg4 Kh7 64.g6+ Kh8 65.Qb7 Ra3 66.Qb8 Ra2 67.Kh5 Ra3 68.Bxe5 Rxa7 69.Qxa7 Qc8 70.Qb8 Qxb8 71.Bxb8 1-0

Game 9
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.26"] [Round "9"] [White "Zappa"] [Black "Rybka"] [Result "1/2-1/2"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Bc4 Ngf6 6.Ng5 e6 7.Qe2 Nb6 8.Bd3 h6 9.N5f3 c5 10.dxc5 Bxc5 11.Ne5 Nbd7 12.Ngf3 Nxe5 13.Nxe5 O-O 14.O-O b6 15.Bf4 Qd4 16.Bg3 Bb7 17.c4 Qd8 18.Rad1 Qe7 19.Kh1 Rfd8 20.a3 Bd4 21.Bh4 Rd6 22.f4 Rad8 23.Bb1 Kf8 24.Rd3 Qc7 25.b4 a5 26.Re1 Ba1 27.Rc1 Rd4 28.Rcd1 Rxd3 29.Bxd3 Bc3 30.bxa5 Bxa5 31.Bg3 Kg8 32.Bf2 Bc3 33.Bg1 Ne4 34.Qc2 Bxe5 35.fxe5 Qxe5 36.Bxb6 Rd6 37.Bg1 Qh5 38.Be3 Ng3+ 39.Kg1 Nf5 40.Bf4 Rd4 41.Be2 Qh4 42.Bc1 Qd8 43.Rf1 Qc7 44.Rf2 Rh4 45.h3 Nd4 46.Qb2 Nxe2+ 47.Qxe2 Re4 48.Qf1 Rxc4 49.Bf4 Qc6 50.Rb2 Rc3 51.Qb5 Qxb5 52.Rxb5 Bd5 53.Bd6 Rc1+ 54.Kf2 Rc2+ 55.Ke1 Rxg2 56.Rc5 g5 57.Rc3 Ra2 58.h4 f5 59.hxg5 hxg5 60.Rg3 g4 61.Rc3 Kf7 62.Be5 Kg6 63.Rc8 Rxa3 64.Rg8+ Kf7 65.Rg7+ Kf8 66.Kd2 Ra4 67.Kc3 Re4 68.Bf6 Bc4 69.Kd2 Be2 70.Rg5 Kf7 71.Bh8 f4 72.Re5 Rxe5 73.Bxe5 f3 74.Ke3 Kg6 75.Bd6 Kf6 76.Bg3 Kf5 77.Bh2 e5 78.Bg3 Bc4 79.Bh4 Ba6 80.Bg3 Ke6 81.Be1 Kd5 82.Bh4 Bb5 83.Be1 Be2 84.Bf2 1/2-1/2

Game 10
[Event "Zappa vs. Rybka"] [Site "Mexico City MEX"] [Date "2007.09.27"] [Round "10"] [White "Rybka"] [Black "Zappa"] [Result "1/2-1/2"]

1.Nf3 Nf6 2.c4 e6 3.Nc3 c5 4.g3 b6 5.Bg2 Bb7 6.O-O Be7 7.Re1 d6 8.e4 a6 9.d4 cxd4 10.Nxd4 Qc7 11.Be3 Nbd7 12.f4 Rc8 13.Rc1 O-O 14.f5 e5 15.Nb3 Qb8 16.Qe2 Rc7 17.Nd2 Rfc8 18.g4 h6 19.h4 Nh7 20.Bf2 Bc6 21.Nd5 Bxd5 22.exd5 b5 23.b3 b4 24.Qe3 Nc5 25.Ne4 Nxe4 26.Bxe4 Rd7 27.Bf3 Qc7 28.Kg2 a5 29.Kh3 Qd8 30.Qd2 Rdc7 31.Rcd1 Bf6 32.Re2 Rd7 33.Qd3 Be7 34.a3 bxa3 35.Ra1 Qf8 36.Rxa3 Bd8 37.Kg2 Rb8 38.Re1 Rdb7 39.c5 Rb4 40.c6 Qe7 41.Bg3 Nf6 42.g5 hxg5 43.hxg5 Ne8 44.Qd2 Rxb3 45.Rxb3 Rxb3 46.g6 Bb6 47.Qa2 Rb4 48.Rb1 fxg6 49.fxg6 Qg5 50.Rxb4 axb4 51.Qb1 Qd2+ 52.Kf1 Qe3 53.Qf5 Qg1+ 54.Ke2 Qe3+ 55.Kd1 Qb3+ 56.Kd2 Qc3+ 57.Kd1 Qb3+ 58.Ke1 Qe3+ 59.Kd1 Qb3+ 1/2-1/2 =See also=
 * Deep Fritz versus Deep Junior 2007

=Publications=
 * Anthony Cozzie (2007). Zappa vs. Rybka. ICGA Journal, Vol. 30, No. 4
 * Monty Newborn (2011). Beyond Deep Blue: Chess in the Stratosphere. Springer, ISBN-13: 978-0857293404, amazon
 * [[FILE:bejDeepBlue.jpg|none|border|text-bottom|link=https://www.springer.com/gp/book/9780857293404]]
 * Chapter 14: 2007: Zappa Upsets Rybka in Mexico City, 5.5–4.5, page 169

=Forum Posts=
 * Breaking News Rybka v Zappa (Hiarcs Forum Exclusive) by Harvey Williamson, Hiarcs Forum, August 19, 2007
 * Zappa vs Rybka in september in Mexico ??!! by Vincent Lejeune, CCC, August 19, 2007
 * Rybka vs Zappa by Swaminathan Natarajan, CCC, September 07, 2007
 * Mexico - Zappa 5.5 v Rybka 4.5- Zappa wins $10,000 by Harvey Williamson, Hiarcs Forum, September 12-28, 2007
 * Zappa Mexico UCI ... by Ingo Bauer, CCC, September 18, 2007
 * Rybka vs Zappa. Mexico City, 20-27 September 2007 by Dadi Jonsson, Rybka Forum, September 22, 2007
 * Zappa V Rybka Mexico 2007 - Zappa wins 5.5-4.5 - The Games by Harvey Williamson, Hiarcs Forum, September 27, 2007

=External Links=
 * "Clash of the Computer Titans" by ChessOK
 * Zappa match - from Rybka from Wikipedia
 * Zappa fillets the Fish: Mexico 2007 by Anthony Cozzie
 * Clash of the Computer Titans (2007) from chessgames.com
 * Kampf der Schachprogramme: Zappa gegen Rybka by Stephan Oliver Platz, ChessBase Nachrichten, September 27, 2017 (German), incorporated in
 * TCEC: Superfinal Houdini vs Komodo by Stephan Oliver Platz, ChessBase News, November 23, 2017 » TCEC Season 10

=References= Up one Level