Horrible mistake by Rybka 1.0 Beta.

[Golem]

Rybka 1.0 made an horrible mistake in this blitz game versus Spike 1.2. At move 66, Rybka plays "Ra8" with a score of 5,64 (depht 14) in her favor. Two moves later, the games is clearly won for Spike with 7,08 in spike favor, unbelievable...

[Event "MyTournament"]
[Site "GOLEM"]
[Date "2008.05.24"]
[Round "3"]
[White "Spike 1.2"]
[Black "Rybka 1.0 Beta"]
[Result "1-0"]
[BlackElo "2800"]
[Time "12:05:07"]
[WhiteElo "2800"]
[TimeControl "120+2"]
[Termination "normal"]
[PlyCount "148"]
[WhiteType "program"]
[BlackType "program"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 d5 6. a3 Be7 7. cxd5 Nxd5 8.
Qc2 Nd7 9. e4 Nxc3 10. Nxc3 c5 11. Be3 {(Bc1e3 c5xd4 Be3xd4 e6e5 Bd4e3
Nd7b6 Ra1d1 Qd8c7 Rd1c1 Qc7d8 Bf1d3 Bc8g4 Nc3d5) +0.40/12 5} cxd4 {(c5xd4
Be3xd4 Qd8c7 000 b7b6 Bf1b5) -0.07/9 4} 12. Bxd4 {(Be3xd4 e6e5 Bd4e3 Nd7f6
Ra1d1 Qd8a5 Qc2d2 Rf8d8 Nc3d5 Qa5xd2+ Rd1xd2 Nf6xd5 Rd2xd5 Rd8xd5 e4xd5
Bc8f5 f2f3) +0.20/13 6} e5 {(e6e5 Bd4e3 Nd7f6 h2h3 Bc8e6 Bf1e2 Ra8c8)
-0.02/10 3} 13. Be3 {(Bd4e3 Be7g5 Be3xg5 Qd8xg5 h2h4 Qg5h6 Qc2c1 Qh6xc1+
Ra1xc1 Nd7b6 Nc3d5 Nb6xd5 e4xd5 Rf8d8 Bf1c4 Bc8f5) +0.13/12 4} Nf6 {(Nd7f6
h2h3 Bc8e6 Bf1e2 Ra8c8 00 Qd8a5 Rf1d1) -0.03/11 5} 14. Rd1 {(Ra1d1 Qd8c7
Rd1c1 Qc7a5 Be3d2 Qa5d8 Bf1c4 Bc8g4 f2f3 Ra8c8 Nc3b5 a7a6) +0.24/12 5} Qc7
{(Qd8c7 Bf1e2 Nf6g4 Qc2d2 Ng4xe3 f2xe3 Bc8e6 00 Ra8c8) -0.03/11 10} 15. Bd3
{(Bf1d3 b7b6 Nc3d5 Nf6xd5 e4xd5 Qc7xc2 Bd3xc2 Bc8d7 d5d6 Be7f6 Bc2e4 Ra8c8
Ke1e2 h7h6) +0.33/11 3} Rd8 {(Rf8d8 Be3g5 Qc7c6 00 Bc8g4 Bd3e2 Bg4xe2)
+0.09/10 4} 16. Nd5 {(Nc3d5 Nf6xd5 e4xd5 Qc7xc2 Bd3xc2 h7h6 00 b7b6 f2f3
Bc8a6 Rf1e1 Ba6b7 Be3f2 Ra8c8 Re1xe5 Rc8xc2 Re5xe7 Rd8xd5 Rd1xd5 Bb7xd5
Re7xa7 Rc2xb2) +0.31/12 4} Nxd5 {(Nf6xd5 e4xd5 Qc7a5+ Qc2d2 Rd8xd5 b2b4
Qa5xa3 Bd3xh7+ Kg8xh7) +0.13/10 1} 17. exd5 {(e4xd5 Qc7xc2 Bd3xc2 b7b6
Bc2e4 Ra8b8 00 Bc8a6 Rf1e1 g7g6 f2f4 f7f5 Be4d3 Ba6xd3 Rd1xd3) +0.13/13 6}
Qa5+ {(Qc7a5+ b2b4 Qa5xa3 Bd3xh7+ Kg8h8 00 Qa3xb4 Bh7e4 Qb4d6 Qc2e2)
-0.20/11 5} 18. Bd2 {(Be3d2 Qa5xd5 Bd3xh7+ Kg8h8 Bh7e4 Qd5b5 a3a4 Qb5a6
Bd2c3 Bc8g4 f2f3) +0.34/10 4} Qxd5 {(Qa5xd5 Bd3xh7+ Kg8f8 00 Bc8g4 f2f3
Qd5c5+ Kg1h1 Qc5xc2 Bh7xc2) +0.20/11 3} 19. Bxh7+ {(Bd3xh7+ Kg8f8 00 Bc8g4
f2f3 Qd5c5+ Kg1h1 Bg4e6 Qc2e4 Qc5d5 Rf1e1 Qd5xe4 Bh7xe4 Be6b3) +0.45/11 4}
Kf8 {(Kg8f8 00 Bc8g4 f2f3 Qd5c5+ Kg1h1 Bg4e6 Qc2e4 Qc5d5 Qe4e3) +0.25/12 5}
20. O-O {(00 Bc8g4 f2f3 Qd5c5+ Kg1h1 Bg4e6 Qc2xc5 Be7xc5 Bh7e4 Be6b3 Rd1c1
Rd8xd2 Rc1xc5 Ra8e8) +0.28/12 6} Bg4 {(Bc8g4 f2f3 Qd5c5+ Kg1h1 Bg4e6 Qc2xc5
Be7xc5 Bh7e4 Ra8b8 Bd2c3) +0.26/11 2} 21. f3 {(f2f3 Qd5c5+ Kg1h1 Bg4e6
Qc2xc5 Be7xc5 Bh7e4 f7f5 b2b4 Be6b3 Rd1b1 Rd8xd2 Rb1xb3 f5xe4 b4xc5 e4xf3
Rf1xf3+) +0.19/13 6} Qc5+ {(Qd5c5+ Kg1h1 Bg4e6 Qc2e4 Qc5d4 Qe4xd4 e5xd4
Rf1e1 Rd8d5 Bd2f4) +0.23/11 7} 22. Kh1 {(Kg1h1 Bg4e6 Rf1e1 Qc5xc2 Bh7xc2
f7f6 Bd2c3 Rd8xd1 Re1xd1 Ra8d8 Rd1xd8+ Be7xd8 Bc2e4 b7b6 Kh1g1 Bd8e7 b2b4)
+0.09/13 3} Be6 {(Bg4e6 Rf1e1 Qc5xc2 Bh7xc2 Ra8c8 Bd2c3 Rd8xd1 Re1xd1 b7b6
Bc2e4) +0.25/11 9} 23. Qe4 {(Qc2e4 Qc5d5 Qe4xd5 Be6xd5 Bd2a5 b7b6 Ba5c3
f7f6 Bh7f5 Bd5b3 Rd1d7 Rd8xd7 Bf5xd7) +0.09/11 6} Rac8 {(Ra8c8 Bd2b4 Qc5b5
Bh7f5 Be6xf5 Bb4xe7+ Kf8xe7 Qe4xf5 f7f6) +0.30/10 6} 24. Bc3 {(Bd2c3 Rd8xd1
Rf1xd1 g7g6 Qe4xe5 Qc5xe5 Bc3xe5 Rc8c2 Rd1e1 Be7c5 Be5f6 Bc5d6 Re1xe6 f7xe6
Bh7xg6) +0.10/10 4} Rxd1 {(Rd8xd1 Rf1xd1 g7g6 Bh7xg6 f7xg6 Qe4xg6 Be6f7
Qg6h7 Rc8c6 Rd1e1) +0.75/11 3} 25. Rxd1 {(Rf1xd1 g7g6 Bh7xg6 f7xg6 Qe4xg6
Be6f7 Qg6g3 Kf8e8 Rd1e1 Bf7e6 Re1xe5 Qc5b6 Re5e4) -1.03/13 8} g6 {(g7g6
Bh7xg6 f7xg6 Qe4xg6 Be6f7 Qg6h7 Qc5e3 Qh7h8+ Bf7g8 Bc3xe5) +0.56/11 4} 26.
Bxg6 {(Bh7xg6 f7xg6 Qe4xg6 Be6f7 Qg6h7 Qc5e3 Qh7h8+ Bf7g8 Bc3xe5 Qe3g5 f3f4
Qg5g4 Qh8h6+ Kf8e8) -0.81/12 8} fxg6 {(f7xg6 Qe4xg6 Be6f7 Qg6h7 Qc5e3
Qh7h8+ Bf7g8 Bc3xe5 Qe3g5 Be5c3) +0.56/11 2} 27. Qxg6 {(Qe4xg6 Be6f7 Qg6h7
Qc5e3 Qh7h8+ Bf7g8 Bc3xe5 Qe3g5 Be5c3 Rc8c6 Rd1e1 Rc6g6 Re1e2) -0.83/12 3}
Bf7 {(Be6f7 Qg6h7 Qc5e3 Qh7h8+ Bf7g8 Bc3xe5 Qe3g5 Be5c3 Rc8c4) +0.59/10 2}
28. Qh7 {(Qg6h7 Qc5e3 Qh7h8+ Bf7g8 Bc3xe5 Qe3g5 Be5c3 Rc8c6 Rd1e1 Be7d6
g2g3 Bd6e7 Bc3g7+) -0.77/12 5} Qe3 {(Qc5e3 Qh7h8+ Bf7g8 Bc3xe5 Qe3g5 Be5c3
Rc8c6 Qh8h3 Qg5f4) +0.71/10 8} 29. Qh8+ {(Qh7h8+ Bf7g8 Bc3xe5 Qe3g5 Be5c3
Rc8c6 Rd1e1 Be7f6 Bc3xf6 Qg5xf6 Qh8xf6+ Rc6xf6 b2b4 Rf6d6 h2h4 Rd6d3)
-0.73/12 3} Bg8 30. Bxe5 {(Bc3xe5 Qe3g5 Be5c3 Rc8c4 g2g3 Rc4c6 Rd1e1 Kf8e8
Re1e5 Qg5g6 Re5e4 Qg6f7) -0.77/12 4} Qg5 {(Qe3g5 Be5c3 Rc8c6 Qh8h3 Rc6e6
Bc3d4) +0.66/9 1} 31. Bc3 {(Be5c3 Rc8c6 Rd1e1 Be7f6 Bc3xf6 Qg5xf6 Qh8xf6+
Rc6xf6 h2h4 Rf6f4 Re1e4 Rf4xe4 f3xe4 Bg8e6 Kh1g1) -0.72/11 3} Rc6 {(Rc8c6
Qh8h3 Rc6e6 g2g3 Qg5g6 Rd1c1 Re6c6) +0.78/10 3} 32. Re1 {(Rd1e1 Be7f6
Bc3xf6 Rc6xf6 b2b4 Rf6e6 Qh8c3 Re6xe1+ Qc3xe1 Bg8c4 h2h3 Qg5f4 Qe1c3 b7b5
Qc3h8+ Bc4g8 Qh8c3) -0.76/12 4} Bf6 {(Be7f6 Bc3xf6 Qg5xf6 Qh8xf6+ Rc6xf6
Kh1g1 Rf6d6 Re1c1 Bg8e6 Rc1c2) +0.87/11 4} 33. Bxf6 {(Bc3xf6 Rc6xf6 b2b4
b7b6 h2h3 Rf6d6 Re1e4 Qg5g3 Qh8a1 Bg8e6 Qa1e1 Qg3g6 g2g4) -0.73/12 3} Qxf6
{(Qg5xf6 Qh8xf6+ Rc6xf6 Kh1g1 Rf6d6 Re1c1 Bg8e6 h2h4 Rd6d2 b2b4) +0.86/11
3} 34. Qxf6+ {(Qh8xf6+ Rc6xf6 Kh1g1 Rf6d6 Re1c1 Bg8e6 h2h4 Be6d7 Rc1c7
Bd7c6 Kg1f1 Rd6h6 Rc7c8+ Kf8e7 Rc8c7+ Ke7d6) -0.55/12 3} Rxf6 {(Rc6xf6
Re1c1 Rf6b6 b2b4 Kf8g7 Kh1g1 Bg8e6 Rc1c7+ Kg7g6 Kg1f2) +0.83/12 3} 35. Rd1
{(Re1d1 Kf8e7 Kh1g1 Rf6d6 Rd1xd6 Ke7xd6 f3f4 Kd6d5 g2g4 Kd5c4 f4f5 Kc4b3
g4g5 Kb3xb2 g5g6 Bg8d5) -0.53/13 3} Ke7 {(Kf8e7 Kh1g1 Rf6c6 Rd1d2 Bg8e6
Kg1f2 Rc6c1 g2g4) +0.83/11 4} 36. Kg1 {(Kh1g1 Rf6f4 Kg1f2 Rf4h4 h2h3 Bg8e6
Rd1c1 Ke7d6 Kf2e3 a7a5 f3f4 Be6d5 Rc1c2) -0.48/13 5} Be6 {(Bg8e6 Kg1f2
Rf6h6 Kf2g3 Ke7f6 h2h4 Rh6h8 Rd1c1) +0.77/11 6} 37. Rd4 {(Rd1d4 Rf6f5 h2h4
Rf5c5 Rd4d2 Rc5h5 g2g3 Rh5d5 Rd2xd5 Be6xd5 Kg1f2 Ke7f6 g3g4) -0.35/13 4}
Rf5 {(Rf6f5 Kg1f2 Rf5c5 Kf2e3 Ke7f6 h2h4 Rc5h5 Rd4e4 Kf6e7) +0.72/12 4} 38.
h4 {(h2h4 Rf5c5 Rd4d2 Rc5h5 g2g3 b7b6 Kg1f2 Ke7f6 b2b4 a7a5 f3f4 Rh5b5
b4xa5 Rb5xa5 Rd2d6) -0.23/14 4} Rc5 {(Rf5c5 Rd4d2 Rc5h5 g2g3 a7a5 Kg1f2
Ke7f6 Kf2e3) +0.72/11 1} 39. Rd2 {(Rd4d2 Rc5h5 g2g3 b7b6 Kg1f2 Ke7f6 b2b4
a7a5 f3f4 Rh5b5 Rd2d4 Rb5d5 Rd4xd5 Be6xd5 b4xa5 b6xa5 h4h5) -0.16/14 4} Rh5
{(Rc5h5 g2g3 a7a5 Kg1f2 Ke7f6 Kf2e3 a5a4 Rd2d4 b7b5) +0.58/12 5} 40. g3
{(g2g3 a7a5 b2b4 Ke7f6 Kg1f2 a5xb4 a3xb4 Rh5b5 Rd2d4 Rb5d5 Rd4xd5 Be6xd5
g3g4 Kf6e5 g4g5 Ke5f4) -0.12/14 4} Kf6 {(Ke7f6 Kg1f2 a7a5 Kf2e3 a5a4 Ke3e4
b7b5 Ke4f4 Rh5f5+ Kf4e4) +0.63/13 2} 41. Kf2 {(Kg1f2 a7a5 b2b4 a5xb4 a3xb4
b7b6 Rd2d4 Rh5d5 Kf2e3 Rd5e5+ Ke3f4 Re5h5 Rd4d6 Rh5b5 Rd6d4 Rb5f5+ Kf4e3)
-0.05/13 4} a5 {(a7a5 Kf2e3 a5a4 Ke3e4 b7b5 Ke4f4 Rh5f5+ Kf4e4 Rf5e5+
Ke4d4) +0.59/12 3} 42. b4 {(b2b4 a5xb4 a3xb4 Rh5h7 Kf2e3 Rh7e7 Rd2d6 Kf6e5
Rd6d8 Re7c7 h4h5 Rc7c4 h5h6 Rc4xb4 h6h7 Rb4b3+ Ke3f2 Rb3b2+ Kf2e3 Rb2b3+)
-0.06/13 2} axb4 {(a5xb4 a3xb4 Rh5h7 Kf2e3 Rh7h8 Rd2d6 Kf6e5 Rd6d2)
+0.58/11 2} 43. axb4 {(a3xb4 Rh5h8 Rd2d6 Kf6e5 Rd6d1 Rh8c8 Rd1e1+ Ke5f6
h4h5 Rc8c2+ Re1e2 Rc2c1 g3g4 Rc1c4 g4g5+ Kf6f5) -0.04/13 4} Rh8 {(Rh5h8
Kf2e3 Kf6e5 f3f4+ Ke5f6 Rd2d6 Rh8g8 Ke3f2 Rg8c8 h4h5) +0.52/12 7} 44. Ke3
{(Kf2e3 Be6c4 Ke3f4 b7b5 Rd2d6+ Kf6e7 Rd6a6 Rh8e8 h4h5 Bc4d5 h5h6 Re8f8+
Kf4e5 Bd5xf3 Ra6a7+ Ke7d8 h6h7 Rf8e8+ Ke5f4) -0.02/12 4} Ke5 {(Kf6e5 f3f4+
Ke5f6 Rd2d6 Rh8g8 Ke3f2 Rg8c8 h4h5 Rc8c7) +0.44/11 4} 45. Kf2 {(Ke3f2 Be6d5
f3f4+ Ke5d6 Rd2e2 Rh8c8 h4h5 b7b5 f4f5 Rc8c3 Re2e3 Rc3c4 h5h6 Rc4xb4 h6h7
Rb4b2+ Re3e2 Rb2xe2+ Kf2xe2) -0.12/11 2} Bc4 {(Be6c4 f3f4+ Ke5e4 Rd2d1 b7b5
Kf2g2 Bc4d5 Kg2f2 Rh8a8) +0.74/11 3} 46. Rd7 {(Rd2d7 b7b5 f3f4+ Ke5e4 Kf2g2
Rh8h6 Kg2f2 Rh6a6 Rd7e7+ Ke4f5 Re7e5+ Kf5g4 Re5g5+ Kg4h3 Rg5e5) -0.26/11 3}
b5 {(b7b5 f3f4+ Ke5e4 Rd7d1 Bc4d5 Rd1d2 Rh8h6 Rd2c2 Bd5c4) +0.78/11 4} 47.
Rd2 {(Rd7d2 Rh8c8 h4h5 Bc4d5 f3f4+ Ke5d6 Rd2e2 Rc8c3 Re2e3 Rc3c4 h5h6
Rc4xb4 h6h7 Rb4b2+ Re3e2 Rb2xe2+ Kf2xe2) -0.31/11 2} Rh7 {(Rh8h7 f3f4+
Ke5e4 Rd2d1 Rh7a7 Rd1e1+ Ke4f5 Re1e5+ Kf5f6 g3g4) +0.78/12 8} 48. f4+
{(f3f4+ Ke5e4 Rd2d8 Rh7a7 Rd8e8+ Ke4f5 Re8e5+ Kf5g4 Re5g5+ Kg4h3 h4h5
Ra7a2+ Kf2e3 Ra2a3+ Ke3f2 Ra3b3 h5h6 Rb3b2+ Kf2f3 Rb2b3+ Kf3e4 Rb3xg3)
-0.39/11 4} Ke4 {(Ke5e4 Rd2d8 Rh7h6 Kf2g2 Rh6a6 Rd8e8+ Ke4f5 Kg2f3 Ra6a4
g3g4+) +0.83/12 2} 49. Rd8 {(Rd2d8 Rh7h6 Rd8d1 Rh6h8 Kf2g2 Rh8a8 Rd1e1+
Ke4d3 h4h5 Kd3c3 g3g4 Kc3xb4 g4g5 Bc4d5+ Kg2f2 Ra8a2+ Re1e2 Ra2xe2+ Kf2xe2
Kb4c5 h5h6) -0.31/13 3} Rh6 {(Rh7h6 Kf2g2 Rh6a6 Rd8e8+ Ke4f5 Re8e5+ Kf5f6
h4h5 Ra6a4 g3g4) +0.81/12 2} 50. Rd1 {(Rd8d1 Rh6a6 Rd1e1+ Ke4f5 Re1e5+
Kf5g6 g3g4 Ra6a4 h4h5+ Kg6h6 Kf2g3 Ra4xb4 Kg3h4 Rb4b2 g4g5+ Kh6g7 h5h6+
Kg7g6) -0.33/12 3} Bd5 {(Bc4d5 Kf2g2 Rh6h8 Kg2h3 Bd5e6+ Kh3g2 Be6b3 Rd1e1+
Ke4d4 Re1c1) +0.81/12 5} 51. Kg2 {(Kf2g2 Rh6a6 h4h5 Ra6a4 Kg2h3 Ra4xb4 h5h6
Bd5g8 Rd1e1+ Ke4f5 Re1e5+ Kf5f6 g3g4 Rb4b3+ Kh3h4 Kf6g6) -0.61/11 3} Rh8
{(Rh6h8 Kg2h3 Bd5c4 Kh3g2 Rh8h7 Kg2h3 Bc4e6+ Kh3g2 Be6c4 Kg2h3) +0.81/11 1}
52. Kh3 {(Kg2h3 Bd5c4 Kh3g2 Rh8a8 Rd1e1+ Ke4d3 h4h5 Kd3c3 g3g4 Bc4d5+ Kg2g3
Ra8a3 Re1e3+ Kc3xb4 Re3xa3 Kb4xa3) -0.29/11 2} Bc4 {(Bd5c4 Kh3g2 Rh8h7
Kg2f2 Bc4d5 Rd1d2 Rh7h8 Rd2d1 Rh8h6 Kf2g2) +0.82/12 4} 53. Kg2 {(Kh3g2
Bc4d3 Rd1e1+ Ke4d4 Kg2h3 Kd4c3 g3g4 Kc3xb4 f4f5 Rh8h6 Kh3g3 Rh6d6 h4h5
Kb4c5 Kg3f4) -0.52/12 4} Ke3 {(Ke4e3 Rd1a1 Ke3d4 Kg2h3 Kd4c3 g3g4 Kc3xb4
g4g5) +0.98/11 5} 54. Rd7 {(Rd1d7 Bc4d3 Rd7c7 Rh8a8 h4h5 Ra8a4 Kg2h3 Ra4xb4
h5h6 Rb4b1 Kh3g4 Rb1h1 Kg4g5) -0.62/11 2} Bd3 {(Bc4d3 Rd7e7+ Ke3d4 Re7c7
Bd3c4 Kg2f3 Bc4d5+ Kf3g4 Rh8g8+ Kg4h3) +0.90/11 1} 55. Ra7 {(Rd7a7 Rh8d8
Ra7a3 Ke3d4 g3g4 Kd4c4 h4h5 Kc4xb4 Ra3a6 Kb4c3 Ra6c6+ Kc3d4 Kg2g3) -0.80/11
3} Rd8 {(Rh8d8 Ra7a3 Rd8d7 Kg2h3 Ke3e4 Kh3g4 Rd7d4) +1.07/10 1} 56. Ra3
{(Ra7a3 Ke3d4 g3g4 Kd4c4 h4h5 Kc4xb4 Ra3a7 Bd3e2 Ra7g7 Rd8d2 Kg2g3 Rd2d3+
Kg3f2 Be2f3) -0.93/12 3} Rd4 {(Rd8d4 f4f5 Ke3e4 f5f6 Bd3c4 Ra3f3 Rd4d2+
Rf3f2 Rd2xf2+ Kg2xf2) +1.00/11 3} 57. Rb3 {(Ra3b3 Ke3d2 h4h5 Kd2c2 Rb3a3
Rd4xb4 Ra3a2+ Rb4b2 Ra2a7 Kc2b3+ Kg2h3 Rb2a2 Ra7c7 Ra2c2 Rc7e7) -1.22/12 4}
Kd2 {(Ke3d2 h4h5 Bd3c2 Rb3a3 Rd4xb4 Ra3a5 Rb4b1 h5h6 Kd2e3 Ra5a3+) +1.60/13
2} 58. h5 {(h4h5 Kd2c2 Rb3a3 Rd4xb4 Ra3a2+ Rb4b2 Ra2a7 Kc2b3+ Kg2h3 Rb2a2
Ra7c7 b5b4 g3g4 Ra2c2 Rc7d7 Bd3b5) -1.53/13 5} Kc2 {(Kd2c2 Rb3a3 Rd4xb4
Ra3a2+ Kc2c3 Ra2a7 Rb4a4 Ra7c7+ Ra4c4 Rc7a7) +2.34/13 1} 59. Ra3 {(Rb3a3
Rd4xb4 Ra3a2+ Kc2c3 Ra2a3+ Kc3d4 Ra3a6 Rb4b2+ Kg2h3 b5b4 Ra6a7 Bd3f1+ Kh3g4
Rb2h2 Ra7d7+ Kd4e3 Kg4g5 b4b3 g3g4 b3b2) -1.73/13 4} Rxb4 {(Rd4xb4 Ra3a2+
Kc2c3 Ra2a3+ Kc3d4 Ra3a6 Bd3e4+ Kg2h3 Rb4a4 Ra6d6+) +2.52/13 4} 60. Ra2+
{(Ra3a2+ Kc2c3 Ra2a3+ Kc3d4 Ra3a6 Rb4b2+ Kg2h3 b5b4 Ra6d6+ Kd4e3 h5h6 Rb2b1
Kh3g4 b4b3 Rd6d7 b3b2 h6h7 Rb1h1 Rd7e7+ Bd3e4) -1.76/12 2} Kc3 {(Kc2c3
Ra2a3+ Kc3d4 Ra3a6 Bd3e4+ Kg2h3 Rb4a4 Ra6d6+ Kd4c5 Rd6d2) +2.77/13 3} 61.
Ra3+ {(Ra2a3+ Kc3d4 Ra3a6 Rb4b2+ Kg2h3 b5b4 Ra6d6+ Kd4e3 h5h6 Rb2b1 Kh3g4
b4b3 Rd6e6+ Ke3f2 Re6b6 Bd3e2+ Kg4h4 b3b2 h6h7 Rb1h1+ Kh4g5) -1.87/11 2}
Kd4 {(Kc3d4 Ra3a6 Bd3e4+ Kg2h3 Rb4a4 Ra6d6+ Kd4c5 Rd6d2 b5b4 Rd2b2)
+3.25/13 3} 62. Ra6 {(Ra3a6 Rb4b2+ Kg2h3 b5b4 Ra6d6+ Kd4e3 h5h6 Rb2b1 Kh3g4
b4b3 Rd6e6+ Ke3f2 Re6b6 Bd3e2+ Kg4h4 b3b2 h6h7 Rb1h1+ Kh4g5) -1.87/11 2}
Be4+ {(Bd3e4+ Kg2h3 Rb4a4 Ra6d6+ Kd4c3 Rd6d8 Ra4a8 Rd8d1 b5b4 Rd1e1)
+3.91/12 1} 63. Kh3 {(Kg2h3 Rb4a4 Ra6d6+ Kd4c5 Rd6d8 Ra4a8 Rd8d2 b5b4 Rd2e2
Kc5d4 Re2d2+ Kd4e3 Rd2d6 b4b3) -1.84/11 1} Ra4 {(Rb4a4 Ra6d6+ Kd4c3 Rd6d8
Ra4a8 Rd8d1 b5b4 Rd1e1 Ra8e8 Re1c1+) +3.96/12 1} 64. Rd6+ {(Ra6d6+ Kd4c5
Rd6d8 Ra4a8 Rd8d2 b5b4 Rd2e2 Kc5d4 Re2d2+ Be4d3 Rd2b2 Kd4c3 Rb2f2 b4b3)
-2.01/11 1} Kc3 {(Kd4c3 f4f5 Be4xf5+ g3g4 Ra4xg4 Rd6f6 Bf5d7 Kh3h2 b5b4
h5h6) +4.17/12 1} 65. Rd8 {(Rd6d8 Ra4d4 Rd8b8 b5b4 g3g4 b4b3 f4f5 b3b2 f5f6
b2b1Q Rb8xb1 Be4xb1 f6f7 Rd4d3+ Kh3g2 Rd3d2+ Kg2h3) -3.58/10 1} Ra8 {(Ra4a8
Rd8d1 b5b4 Rd1e1 Be4d3 g3g4 b4b3 Re1e7 b3b2 Re7b7) +5.64/14 2} 66. Rxa8
{(Rd8xa8 Be4xa8 f4f5 Ba8d5 h5h6 Bd5g8 f5f6 b5b4 f6f7 Bg8xf7 h6h7 Bf7e6+
g3g4 b4b3 h7h8Q+) +1.90/10 2} b4 {(b5b4 h5h6 b4b3 g3g4 Be4h7 Ra8c8+ Kc3d4
f4f5 Kd4e5 Rc8b8) -4.98/15 7} 67. Rc8+ {(Ra8c8+ Kc3d4 g3g4 b4b3 Rc8b8 Kd4c4
f4f5 b3b2 Rb8xb2 Be4d5 h5h6 Bd5g8 Rb2b8 Bg8d5 Kh3h4) +7.08/11 1} Kd4
{(Kc3d4 h5h6 b4b3 g3g4 Be4h7 f4f5 Kd4e5 Rc8b8 Ke5f6 Rb8xb3) -4.98/14 2} 68.
g4 {(g3g4 b4b3 Rc8b8 Be4h7 Rb8xb3 Kd4c5 f4f5 Kc5d6 Kh3h4 Bh7g8 Rb3b8 Bg8d5
g4g5 Kd6e5) +7.87/12 2} Bh7 {(Be4h7 Rc8c7 Bh7e4 h5h6 b4b3 h6h7 Be4xh7
Rc7xh7 b3b2 Rh7b7) -7.23/14 3} 69. f5 {(f4f5 b4b3 f5f6 b3b2 Rc8b8 Bh7g8
h5h6 Kd4c3 f6f7 b2b1Q f7xg8Q Qb1h1+ Kh3g3 Qh1e1+ Kg3f3 Qe1h1+ Kf3e3 Qh1c1+
Ke3e4 Qc1xh6) +8.93/11 1} b3 {(b4b3 Rc8b8 Kd4e5 Rb8xb3 Ke5f6 Rb3b7 Bh7g8
h5h6 Kf6g5 Rb7g7+) -7.23/14 2} 70. f6 {(f5f6 b3b2 Rc8b8 Bh7g8 h5h6 Kd4c5
f6f7 Bg8xf7 h6h7 Bf7g6 h7h8Q b2b1Q Qh8c3+ Kc5d5 Rb8xb1 Bg6xb1) +9.75/12 2}
b2 {(b3b2 Rc8b8 Bh7g8 h5h6 Kd4d5 f6f7 Bg8xf7 h6h7 Bf7g6 h7h8Q) -11.03/13 5}
71. Rb8 {(Rc8b8 b2b1Q Rb8xb1 Bh7xb1 f6f7 Kd4c3 f7f8Q Bb1d3 Kh3g3 Kc3b3 h5h6
Kb3c4 Kg3h4 Kc4d4) +11.26/12 1} Bg8 {(Bh7g8 h5h6 Kd4d5 f6f7 Bg8xf7 h6h7
Bf7g6 h7h8Q b2b1Q Qh8d8+) -11.09/14 1} 72. Rxb2 {(Rb8xb2 Kd4c3 Rb2b8 Bg8f7
h5h6 Bf7g6 h6h7 Bg6xh7 f6f7 Bh7d3 f7f8Q Kc3c2 Qf8f2+ Kc2d1 g4g5 Bd3c2)
+15.22/12 1} Ke5 {(Kd4e5 Rb2f2 Ke5d5 h5h6 Kd5e6 f6f7 Bg8xf7 h6h7 Ke6e7
h7h8Q) -15.88/14 11} 73. Rb8 {(Rb2b8 Ke5xf6 Rb8xg8 Kf6f7 Rg8g6 Kf7e7 h5h6
Ke7f7 Rg6g7+ Kf7f8 g4g5) +15.80/11 2} Kxf6 {(Ke5xf6 Rb8xg8 Kf6f7 Rg8g6
Kf7f8 h5h6 Kf8f7 Rg6g7+ Kf7e6 h6h7) -15.94/11 1} 74. Rxg8 {(Rb8xg8 Kf6f7
Rg8g6 Kf7e7 h5h6 Ke7f7 Rg6b6 Kf7g8 g4g5 Kg8f7 Rb6f6+ Kf7g8 g5g6) +24.05/12
1} Kf7 {(Kf6f7 Rg8g6 Kf7f8 h5h6 Kf8f7 Rg6g7+ Kf7f6 g4g5+ Kf6e6 h6h7)
-M384/12 0 Black resigns} 1-0

[terminator]

I wouldn't lose any sleep over it if I were you, that's why it was a free beta. Does the latest version do that?

[Golem]

I wouldn't lose any sleep over it if I were you, that's why it was a free beta. Does the latest version do that?

I know but I would never expect rybka loosing this game. I was just surprised with this reversal of situation.

PS : At blitz game, every program can make stupid mistake. In a previous game, Spike was not able to mate his opponent's king with knight and bischop, he was always trying to mate it in the wrong corner...

It seems that Thinker is going to win my tournament this time.

Code: Select all

   Engine                 Score   Th  Ry  To  Sp  Fr  Gl  Br  Sc  Na    S-B
1: Thinker 5.1D (Passive) 12,0/18 ··· 1=  10  =0  11  11  0== 110 11   105,75
2: Rybka 1.0 Beta         12,0/20 0=  ··· 100 010 1== =0  11  11  111   99,00
3: Toga 1.4 Beta5c        11,0/18 01  011 ··· =1= 1=  01  01  11  =0   105,75
4: Spike 1.2              10,5/19 =1  101 =0= ··· 001 1=  11  =0  01   100,75
5: Fruit 2.3.1            9,5/19  00  0== 0=  110 ··· ==1 1=  10  =1    84,25
6: Glaurung 2.1           9,0/19  00  =1  10  0=  ==0 ··· =1  110 =01   79,00
7: Bright 0.3a            7,5/19  1== 00  10  00  0=  =0  ··· =10 101   67,50
8: Scorpio 2.0            7,5/19  001 00  00  =1  01  001 =01 ··· 1=    66,50
9: Naum 2.0               6,0/19  00  000 =1  10  =0  =10 010 0=  ···   56,50

85 of 144 games played
Name of the tournament: MyTournament
Site/ Country: GOLEM, Belgique
Level: Blitz 2/2
Hardware: Intel(R) Pentium(R) M processor 1.70GHz 1694 MHz with 512 MB Memory
Operating system: Microsoft Windows XP Home Edition Service Pack 2 (Build 2600)

[Ovyron]

Does the latest version do that?

Rybka 2.3.2a has bugs that may cause it to give away wins and lose draw positions. No program is perfect, not even the strongest one.

[swami]

It seems that Thinker is going to win my tournament this time.

Code: Select all

   Engine                 Score   Th  Ry  To  Sp  Fr  Gl  Br  Sc  Na    S-B
1: Thinker 5.1D (Passive) 12,0/18 ··· 1=  10  =0  11  11  0== 110 11   105,75
2: Rybka 1.0 Beta         12,0/20 0=  ··· 100 010 1== =0  11  11  111   99,00
3: Toga 1.4 Beta5c        11,0/18 01  011 ··· =1= 1=  01  01  11  =0   105,75
4: Spike 1.2              10,5/19 =1  101 =0= ··· 001 1=  11  =0  01   100,75
5: Fruit 2.3.1            9,5/19  00  0== 0=  110 ··· ==1 1=  10  =1    84,25
6: Glaurung 2.1           9,0/19  00  =1  10  0=  ==0 ··· =1  110 =01   79,00
7: Bright 0.3a            7,5/19  1== 00  10  00  0=  =0  ··· =10 101   67,50
8: Scorpio 2.0            7,5/19  001 00  00  =1  01  001 =01 ··· 1=    66,50
9: Naum 2.0               6,0/19  00  000 =1  10  =0  =10 010 0=  ···   56,50

85 of 144 games played
Name of the tournament: MyTournament
Site/ Country: GOLEM, Belgique
Level: Blitz 2/2
Hardware: Intel(R) Pentium(R) M processor 1.70GHz 1694 MHz with 512 MB Memory
Operating system: Microsoft Windows XP Home Edition Service Pack 2 (Build 2600)

Excluding Togas, so is Thinker the strongest freeware engine? Or is it still Rybka 1.0? In one tournament, it is said Glaurung is the current strongest, in other tournament from CCRL Fruit 2.3 still leads.... In many blitz tournaments, Thinker is ahead.

[Tony Thomas]

I think that Toga is still the strongest free engine on a single CPU being slightly better than Rybka 1.0 64bit. Rybka is still better than all the others on single thread AFAIK. When it comes to 4 cpu I would say Glaurung should starting showing its real colors and is probably only behind the Togas.

[Golem]

On my slow hardware, I can't tell which engine is the strongest. I think it must be Fruit, Rybka or Toga but they seems equally strong. Spike and Glaurung are also very good.

Some more games later with my tournament, and there are so many changes in the ranking :

Code: Select all

   Engine                 Score    To   Fr   Sp   Gl   Th   Ry   Na   Br   Sc    S-B
1: Toga 1.4 Beta5c        18,5/29 ···· 1=1  =1=0 01== 0111 0111 =01  010= 111   265,75
2: Fruit 2.3.1            17,5/31 0=0  ···· 1101 ==10 001= 0==1 =110 1=1= 1011  242,25
3: Spike 1.2              16,0/29 =0=1 0010 ···· 1=1= =10  101= 010  11=1 =01   236,50
4: Glaurung 2.1           15,5/30 10== ==01 0=0= ···· 001  =1=1 =010 =1=  1101  222,75
5: Thinker 5.1D (Passive) 15,5/29 1000 110= =01  110  ···· 1==  110= 0==0 1101  221,00
6: Rybka 1.0 Beta         15,5/30 1000 1==0 010= =0=0 0==  ···· 1110 1101 111   215,00
7: Naum 2.0               13,5/30 =10  =001 101  =101 001= 0001 ···· 0101 0===  203,25
8: Bright 0.3a            13,5/31 101= 0=0= 00=0 =0=  1==1 0010 1010 ···· =101  197,50
9: Scorpio 2.0            8,5/29  000  0100 =10  0010 0010 000  1=== =010 ····  126,50

134 of 144 games played
Name of the tournament: MyTournament
Site/ Country: GOLEM, Belgique
Level: Blitz 2/2
Hardware: Intel(R) Pentium(R) M processor 1.70GHz 1694 MHz with 512 MB Memory

[Mike S.]

(it was move no. 65: Ra8 {+5.64/14 2})

[D]3R4/8/8/1p5P/r3bP2/2k3PK/8/8 b - - 0 65

Analysis by Rybka 2.3.2a 32-bit (D945 3.4 GHz):

65...b4 66.Rc8+ Kd4
µ (-1.12) Depth: 5 00:00:00

(...) (no Ra8 in between)

65...Rc4 66.h6 b4 67.f5 Bxf5+ 68.g4 Rxg4 69.Rd5 Be6 70.Rd6
-+ (-3.13) Depth: 12 00:00:00 56kN
65...Rc4 66.h6 b4 67.f5 Bxf5+ 68.g4 Bxg4+ 69.Kg3 Bf5 70.Rd5 Be4 71.Rd7
-+ (-3.35) Depth: 13 00:00:01 107kN
65...Rc4 66.h6 b4 67.g4 b3 68.f5 Rc7 69.Rd1 b2 70.Kg3 b1Q 71.Rxb1 Bxb1 72.Kf4
-+ (-3.75) Depth: 14 00:00:03 260kN
(...)
65...Rd4 66.Rc8+ Rc4 67.Rb8 b4 68.g4 b3 69.f5 b2 70.f6 Rc7 71.Rxb2 Kxb2 72.g5
-+ (-3.86) Depth: 17 00:00:09 708kN, tb=11

(evals from White's viewpoint)

P.S. Your PGN contains a lot of garbage, like

11. Be3 {(Bc1e3 c5xd4 Be3xd4 e6e5 Bd4e3
Nd7b6 Ra1d1 Qd8c7 Rd1c1 Qc7d8 Bf1d3 Bc8g4 Nc3d5) +0.40/12 5} cxd4 {(c5xd4
Be3xd4 Qd8c7 000 b7b6 Bf1b5) -0.07/9 4} 12. Bxd4 {(Be3xd4 e6e5 Bd4e3 Nd7f6
Ra1d1 Qd8a5 Qc2d2 Rf8d8 Nc3d5 Qa5xd2+ Rd1xd2 Nf6xd5 Rd2xd5 Rd8xd5 e4xd5
Bc8f5 f2f3) +0.20/13 6} etc.etc. for each calculated move.

You can switch off those data graveyards in Arena, in the PGN options. I think it is called "save variations to PGN" or similar (meaning the engine PVs). You will notice that your new PGN files are suddenly much smaller. Thanks!

[Tony Thomas]

Golem, you are not using the 64bit version of Rybka are you? In that case Toga and few other engines are already ahead of the 32bit version.

[Golem]

You can switch off those data graveyards in Arena, in the PGN options. I think it is called "save variations to PGN" or similar (meaning the engine PVs). You will notice that your new PGN files are suddenly much smaller. Thanks!

Thanks for the tips, I will switch off this option.

Golem, you are not using the 64bit version of Rybka are you? In that case Toga and few other engines are already ahead of the 32bit version.

No, I'm not using the 64 bit version of Rybka. I've played this tournament on a 32 bits computer.
By the way, where can I find this 64 bits beta version of Rybka 1.0 ? Is it a "legal" version (approved by Vas) ?