Author: Uri Blass
Date: 12:12:51 01/18/06
This is a game when GM E.Bacrot resigned against Galfand
I decided to continue the final position that white resigned against rybka and
could draw the game by the 50 move rule.
Maybe Rybka can play better at faster time control but I think that a top
program in game with increasement should not allow me to draw.
lack of knowledge that black should force white to trade rooks is part of the
problem but not all the problem.
There is certianly a bug in the search
Rybka with clear hash does not see the draw by the 50 move rule at move 109(for
comparison glaurung has no problem to see the draw)
,a - Rybka 1.01 Beta 10d 32-bit, Corus Wijk aan Zee 2006
5R2/8/8/6k1/8/6P1/rr3PK1/8 b - - 0 1
Analysis by Rybka 1.01 Beta 10d 32-bit:
109...Kg6
-+ (-5.31) Depth: 3 00:00:00
109...Kg6
-+ (-5.16) Depth: 4 00:00:00
109...Kg6 110.g4
-+ (-5.15) Depth: 5 00:00:00
109...Kg6 110.g4 Re2
-+ (-4.98) Depth: 6 00:00:00 7kN
109...Kg6 110.Kh3 Kg7 111.Rd8
-+ (-3.91) Depth: 7 00:00:00 18kN
109...Ra6 110.Rg8+ Rg6 111.Rxg6+ Kxg6 112.Kf3 Ra2
-+ (-4.54) Depth: 7 00:00:00 22kN
109...Ra6 110.Kh3 Rg6 111.f4+ Kh6 112.f5
-+ (-4.12) Depth: 8 00:00:00 59kN
109...Ra6 110.Kh3 Rg6 111.f4+ Kh5 112.g4+ Kh6 113.g5+ Kg7
-+ (-3.97) Depth: 9 00:00:00 74kN
109...Ra6 110.Kh3 Rg6 111.f4+ Kh6 112.f5 Kg7 113.Rd8
-+ (-3.91) Depth: 10 00:00:00 100kN
109...Ra6 110.Kh3 Rg6 111.f4+ Kh6 112.f5 Kg7 113.Rd8 Rc6
-+ (-3.91) Depth: 11 00:00:01 119kN
109...Ra6 110.Kh3 Rg6 111.f4+ Kh6 112.f5 Kg7 113.Rd8 Rf6 114.Kg4
-+ (-3.91) Depth: 12 00:00:02 199kN
109...Ra6 110.Kh3 Rg6 111.f4+ Kh6 112.f5 Kg7 113.Rd8 Rf6 114.Kg4 Rb5
-+ (-3.91) Depth: 13 00:00:03 301kN
109...Ra6 110.Kh3 Rg6 111.f4+ Kh6 112.f5 Kg7 113.Rd8 Rf6 114.Kg4 Rb5 115.Rc8
-+ (-3.91) Depth: 14 00:00:04 456kN
109...Ra6 110.Kh3 Rg6 111.f4+ Kh6 112.f5 Kg7 113.Rd8 Rf6 114.Kg4 Rb5 115.Rc8
Rfxf5
-+ (-3.91) Depth: 15 00:00:04 885kN
109...Ra6 110.Kh3 Rg6 111.f4+ Kh6 112.f5 Kg7 113.Rd8 Rf6 114.Kg4 Rb5 115.Rc8
Rfxf5 116.Kh4
-+ (-3.91) Depth: 16 00:00:08 1729kN
109...Ra6 110.Kh3 Rg6 111.Rc8 Rxf2 112.Rc5+ Kf6 113.Rc8 Ra2 114.Rc6+ Kg7
115.Rc7+ Kh6 116.Rc3
-+ (-3.91) Depth: 17 00:00:27 5958kN
109...Kg6 110.Kh3 Rxf2 111.Rg8+ Kh7 112.Rg5 Rh2+ 113.Kg4 Ra4+ 114.Kf3 Ra3+
115.Kf4 Rh6 116.Kf5
-+ (-4.43) Depth: 17 00:00:41 9349kN
(, 18.01.2006)
,a - Rybka 1.01 Beta 10d 32-bit, Corus Wijk aan Zee 2006
5R2/8/8/6k1/8/6P1/rr3PK1/8 b - - 0 1
Analysis by Glaurung 1.0.1:
109...Kg4 110.Rg8+ Kh5 111.Rh8+ Kg6
= (0.00) Depth: 2/7 00:00:00
109...Rb6 110.Rg8+ Rg6 111.Rxg6+ Kxg6
-+ (-1.78) Depth: 2/7 00:00:00
109...Rb6 110.Rg8+ Rg6 111.Rxg6+ Kxg6
-+ (-1.78) Depth: 3/7 00:00:00
109...Kg6 110.Rf4 Kg5
-+ (-2.01) Depth: 3/7 00:00:00
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 4/8 00:00:00
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 5/9 00:00:01
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 6/10 00:00:01 3kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 7/12 00:00:01 4kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 8/13 00:00:01 6kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 9/13 00:00:01 9kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 10/16 00:00:01 13kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 11/17 00:00:01 19kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 12/19 00:00:01 30kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 13/19 00:00:01 47kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 14/21 00:00:01 74kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 15/23 00:00:02 108kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 16/25 00:00:02 164kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 17/28 00:00:02 241kN
109...Kg6 110.Rf4 Kg5 111.Rf8
= (0.00) Depth: 18/29 00:00:02 358kN
(, 18.01.2006)
[Event "Corus Wijk aan Zee"]
[Site "Wijk aan Zee NED"]
[Date "2006.01.17"]
[EventDate "2006.01.14"]
[Round "4"]
[Result "0-1"]
[White "E Bacrot"]
[Black "B Gelfand"]
[ECO "D17"]
[WhiteElo "2717"]
[BlackElo "2723"]
[PlyCount "122"]
1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7
8. g3 e5 9. dxe5 Nxe5 10. Bf4 Nfd7 11. Bg2 f6 12. O-O Nc5 13. Ne3 Bg6 14.
b4 Ne6 15. b5 Rd8 16. Qb3 Nd4 17. Qb2 Bc5 18. Rfc1 Qe7 19. bxc6 bxc6 20.
Ne4 Bb4 21. Nc4 Nxc4 22. Rxc4 c5 23. e3 Ne6 24. Nc3 Nxf4 25. Bc6+ Kf8 26.
Rxf4 Qe5 27. Rc1 a5 28. Bb5 Ke7 29. Qb3 Rd2 30. e4 Rhd8 31. Nd5+ Kf8 32.
Qf3 Rd4 33. Rc4 Bd2 34. Rxc5 Bxf4 35. Nxf4 Qxe4 36. Bc6 Qxf3 37. Bxf3 Bf7
38. Rxa5 g5 39. Ne2 Rc4 40. h3 Rd1+ 41. Kg2 Ra1 42. Ra8+ Kg7 43. a5 Rca4
44. Rd8 Rxa5 45. Nd4 f5 46. Rd7 Kf6 47. Rd6+ Ke5 48. Rd8 Rc5 49. Nc6+ Ke6
50. Rh8 Kf6 51. Rxh7 g4 52. hxg4 fxg4 53. Be4 Re1 54. Nd8 Bd5 55. Rh6+ Ke7
56. Bxd5 Rxd5 57. Nc6+ Kd7 58. Rg6 Rdd1 59. Nb8+ Kc8 60. Rg8+ Kb7 61. Rxg4
Kxb8 0-1
[Event "Corus Wijk aan Zee"]
[Site "Wijk aan Zee NED"]
[Date "2006.01.17"]
[Round "4"]
[White "agur"]
[Black "Rybka 1.01 Beta 10d 32-bit"]
[Result "0-1"]
[ECO "D17"]
[WhiteElo "2717"]
[BlackElo "2723"]
[PlyCount "222"]
[EventDate "2006.01.14"]
1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8.
g3 e5 9. dxe5 Nxe5 10. Bf4 Nfd7 11. Bg2 f6 12. O-O Nc5 13. Ne3 Bg6 14. b4 Ne6
15. b5 Rd8 16. Qb3 Nd4 17. Qb2 Bc5 18. Rfc1 Qe7 19. bxc6 bxc6 20. Ne4 Bb4 21.
Nc4 Nxc4 22. Rxc4 c5 23. e3 Ne6 24. Nc3 Nxf4 25. Bc6+ Kf8 26. Rxf4 Qe5 27. Rc1
a5 28. Bb5 Ke7 29. Qb3 Rd2 30. e4 Rhd8 31. Nd5+ Kf8 32. Qf3 Rd4 33. Rc4 Bd2 34.
Rxc5 Bxf4 35. Nxf4 Qxe4 36. Bc6 Qxf3 37. Bxf3 Bf7 38. Rxa5 g5 39. Ne2 Rc4 40.
h3 Rd1+ 41. Kg2 Ra1 42. Ra8+ Kg7 43. a5 Rca4 44. Rd8 Rxa5 45. Nd4 f5 46. Rd7
Kf6 47. Rd6+ Ke5 48. Rd8 Rc5 49. Nc6+ Ke6 50. Rh8 Kf6 51. Rxh7 g4 52. hxg4 fxg4
53. Be4 Re1 54. Nd8 Bd5 55. Rh6+ Ke7 56. Bxd5 Rxd5 57. Nc6+ Kd7 58. Rg6 Rdd1
59. Nb8+ Kc8 60. Rg8+ Kb7 61. Rxg4 Kxb8 62. Rg7 {0} Kc8 {-3.92/11 4} 63. Rf7 {5
} Rd7 {-4.18/11 4} 64. Rf8+ {2} Rd8 {-4.00/14 8} 65. Rf7 {1} Rc1 {-3.97/13 3}
66. Kf3 {7} Rc7 {-4.37/12 8} 67. Rf4 {4} Rc3+ {-4.42/11 6} 68. Kg2 {2} Rcd3 {
-4.09/13 9} 69. Rf7 {2} R8d7 {-4.14/14 4} 70. Rf6 {1} R7d6 {-4.32/13 4} 71. Rf7
{1} Kd8 {-4.37/14 2} 72. Kg1 {3} Ke8 {-4.48/13 6} 73. Rf5 {4} Ke7 {-4.56/11 3}
74. Kg2 {2} Rf6 {-4.51/11 3} 75. Re5+ {1} Kf7 {-4.46/11 3} 76. Re2 {1} Rc6 {
-4.64/11 6} 77. Rb2 {1} Kf6 {-4.65/10 5} 78. Re2 {1} Rc5 {-4.72/11 5} 79. Rb2 {
1} Kg5 {-4.72/10 4} 80. Re2 {5} Rb3 {-4.72/10 5} 81. Rd2 {2} Rcb5 {-4.73/9 3}
82. Rd4 {6} Rb1 {-4.72/10 4} 83. Rf4 {1} R1b4 {-4.90/9 3} 84. Rf8 {2} Rb8 {
-5.04/11 0} 85. Rf7 {1} R4b7 {-4.95/10 0} 86. Rf4 {1} Rb2 {-4.94/10 1} 87. Rf7
{3} Rc8 {-4.78/10 6} 88. Rf4 {4} Rcc2 {-4.94/9 3} 89. Rf8 {1} Rb1 {-4.67/10 2}
90. Rf7 {3} Kg6 {-4.84/9 2} 91. Rf8 {1} Kg7 {-4.73/10 4} 92. Rf5 {2} Rc3 {
-4.62/10 3} 93. Rf4 {2} Rb2 {-4.70/10 2} 94. Rf5 {2} Kg6 {-4.72/11 3} 95. Rf8 {
2} Ra3 {-4.61/11 10} 96. Rf4 {6} Re2 {-4.72/10 2} 97. Rf8 {2} Kg7 {-4.72/10 1}
98. Rf5 {1} Rb3 {-4.72/9 1} 99. Rf4 {2} Rbb2 {-4.61/10 2} 100. Rf5 {1} Kg6 {
-4.63/11 3} 101. Rf8 {1} Rb1 {-4.64/10 2} 102. Rf4 {2} Kg5 {-4.82/9 1} 103. Rf8
{1} Reb2 {-4.64/9 1} 104. Rf7 {2} Rb7 {-4.91/9 1} 105. Rf8 {4} Rb8 {-4.72/11 0}
106. Rf7 {1} Ra1 {-4.72/10 1} 107. Rf4 {3} Ra2 {-4.89/8 1} 108. Rf7 {2} Rbb2 {
-4.78/9 1} 109. Rf8 {2} Kg6 {-3.91/11 1} 110. Rf4 {2} Rb8 {0.00/10 1} 111. Rf3
{2} Kg5 {0.00/22 1} 0-1
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