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Subject: Re: Knowledge to add in Rybka

Author: Vasik Rajlich

Date: 05:28:17 01/06/06

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On January 05, 2006 at 18:35:11, Bouddha wrote:

>Hi all,
>
>there is knowledge to add in Rybka :
>
>after move 50...b4+ the position is a draw.
>[D]8/2k5/4R3/2p5/1p6/p1K5/8/8 w - - 0 51
>
>Therefore evaluation is not correct and black Rybka managed to loose the
>position.
>
>[Event "3m + 2s, rated"]
>[Site "?"]
>[Date "2006.01.06"]
>[Round "?"]
>[White "Lasker#77, Rybka 1.01 Beta 7 32"]
>[Black "Ami_s7, Rybka 1.0 Beta 32-bi"]
>[Result "1-0"]
>[WhiteElo "2768"]
>[BlackElo "2536"]
>[PlyCount "207"]
>[EventDate "2006.01.06"]
>[EventType "blitz"]
>
>1. d4 {0} Nf6 {0} 2. Bg5 {0} c5 {0} 3. d5 {0} Ne4 {-0.03/10 6} 4. h4 {0} Qb6 {
>-0.08/10 8} 5. Nd2 {0} Nxg5 {-0.27/10 2} 6. hxg5 {0} Qxb2 {-0.25/11 7} 7. g6 {0
>} fxg6 {-0.60/11 5} 8. e4 {0} Na6 {-0.52/10 2} 9. Rb1 {0} Qxa2 {-0.61/11 4} 10.
>Bc4 {0} Qa4 {-0.51/12 10} 11. Ngf3 {8} Nb4 {-0.47/9 2} 12. c3 {0} Qxd1+ {
>0.11/12 5} 13. Kxd1 {0} Na6 {-0.09/11 0} 14. Ne5 {5} h5 {-0.16/13 3} 15. d6 {0}
>exd6 {-0.13/13 4} 16. Bf7+ {0} Kd8 {-0.15/14 6} 17. Nxg6 {3} Rh6 {-0.27/13 5}
>18. Nc4 {3} Nc7 {-0.16/12 2} 19. Ne3 {3} d5 {0.17/12 7} 20. Nf5 {3} Rxg6 {
>0.49/11 2} 21. Bxg6 {0} dxe4 {0.34/12 3} 22. Rxh5 {0} Ne6 {0.61/12 7} 23. Rh8 {
>0} Kc7 {0.66/12 4} 24. Ne3 {3} b6 {0.67/12 0} 25. Bxe4 {3} Bb7 {0.69/12 1} 26.
>Bxb7 {6} Kxb7 {0.69/12 0} 27. Kc2 {6} Re8 {0.63/12 0} 28. Re1 {4} Nc7 {
>0.54/11 6} 29. Rhh1 {0} a5 {0.42/11 7} 30. Nc4 {11} Rxe1 {0.21/15 0} 31. Rxe1 {
>0} d5 {0.18/14 5} 32. Ne5 {6} Bd6 {0.24/13 4} 33. Nf7 {4} Kc6 {0.02/9 1} 34.
>Nxd6 {2} Kxd6 {0.22/13 2} 35. f4 {1} a4 {0.43/14 9} 36. f5 {4} b5 {0.52/14 2}
>37. g4 {4} d4 {0.86/15 0} 38. g5 {1} Nd5 {1.62/15 15} 39. f6 {21} Nxf6 {
>2.34/13 6} 40. gxf6 {0} gxf6 {2.32/11 1} 41. Rf1 {3} Kd5 {2.50/13 4} 42. Kd3 {0
>} dxc3 {2.78/14 7} 43. Rf5+ {4} Kd6 {2.90/15 1} 44. Kxc3 {1} Kc6 {2.97/14 3}
>45. Rxf6+ {3} Kb7 {2.97/14 4} 46. Kb2 {0} Kc7 {2.97/14 4} 47. Kc2 {3} Kb7 {
>2.96/13 7} 48. Kd3 {5} a3 {3.03/15 0} 49. Kc3 {4} Kc7 {3.03/16 0} 50. Re6 {0}
>b4+ {3.04/17 5} 51. Kb3 {2} Kb7 {3.04/19 2} 52. Rh6 {5} Kc7 {3.04/19 1} 53.
>Rh7+ {1} Kc6 {3.04/20 4} 54. Rh8 {4} Kb6 {3.04/20 3} 55. Re8 {1} Kb7 {3.04/21 6
>} 56. Kc4 {0} Kc7 {3.04/20 7} 57. Re7+ {0} Kc6 {3.04/20 3} 58. Re6+ {2} Kc7 {
>3.04/21 5} 59. Rg6 {8} Kb7 {3.04/20 4} 60. Rf6 {0} Kc7 {3.04/19 2} 61. Rh6 {0}
>Kb7 {3.04/20 3} 62. Rg6 {0} Kc7 {3.04/20 3} 63. Rg3 {8} Kc6 {3.04/21 2} 64. Rf3
>{2} Kb7 {3.04/21 4} 65. Rf1 {4} Kb6 {3.04/17 2} 66. Rf8 {3} Kb7 {3.04/22 7} 67.
>Rf7+ {4} Kb6 {3.04/22 5} 68. Rd7 {7} Ka6 {3.04/21 3} 69. Rd1 {9} Kb6 {3.04/21 2
>} 70. Rc1 {3} Kc6 {3.04/20 2} 71. Rh1 {0} Kb6 {3.04/22 6} 72. Rh8 {0} Ka7 {
>3.04/18 2} 73. Rh7+ {5} Kb6 {3.04/21 2} 74. Rf7 {4} Kc6 {3.04/18 2} 75. Kb3 {4}
>Kb6 {3.04/22 0} 76. Rf6+ {1} Kc7 {3.04/18 1} 77. Rg6 {6} Kb7 {3.04/17 2} 78.
>Rg5 {14} Kc6 {3.04/24 5} 79. Rg3 {0} Kc7 {3.04/22 5} 80. Rg8 {8} Kb7 {
>3.04/22 12} 81. Kc4 {6} Kc7 {3.04/15 2} 82. Ra8 {4} Kb7 {3.04/22 2} 83. Ra4 {32
>} Kb6 {3.04/18 1} 84. Kb3 {3} Kb5 {3.04/24 0} 85. Ra8 {7} Kb6 {3.20/15 2} 86.
>Rf8 {0} Kb7 {3.04/24 5} 87. Rg8 {0} Kc7 {3.04/19 2} 88. Kc4 {36} Kb7 {3.04/23 3
>} 89. Rg7+ {18} Ka6 {3.04/21 2} 90. Rd7 {1} Kb6 {3.04/20 1} 91. Rd1 {13} Kc6 {
>3.04/15 1} 92. Rd2 {8} Kb6 {3.04/16 2} 93. Rd8 {3} Kc7 {3.04/16 3} 94. Rd3 {5}
>Kc6 {3.05/15 27} 95. Kb3 {1} Kb5 {3.05/13 12} 96. Rd6 {0} c4+ {1.47/12 0} 97.
>Ka2 {0} Ka4 {0.47/10 1} 98. Ra6+ {0} Kb5 {0.01/0 0} 99. Ra7 {0} Kc6 {3.05/12 1}
>100. Ra5 {0} Kb6 {4.36/15 1} 101. Ra8 {0} Kc6 {4.42/16 0} 102. Rb8 {0} Kc5 {
>5.30/17 2} 103. Rb7 {0} c3 {5.30/13 1} 104. Kb3 {
>Ami_s7,Rybka 1.0 Beta 32-bi resigns  (Lag: Av=0.65s, max=2.0s) 0} 1-0

Hello,

IMHO this type of position is either for the TBs (in a few years KR v KPPP will
be common) or for the search.

Vas



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