Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Strange draw by rybka beta 9 may be a bug?

Author: Vasik Rajlich

Date: 03:13:36 01/12/06

Go up one level in this thread


On January 11, 2006 at 20:39:32, dhanial wrote:

>[Event "HIARCHS RYBKA-2"]
>[Site "home"]
>[Date "2006.01.08"]
>[Round "1"]
>[White "Deep Fritz 8"]
>[Black "Rybka 1.01 Beta 9 32-bit"]
>[Result "1/2-1/2"]
>[ECO "B48"]
>[Annotator "0.62;0.40"]
>[PlyCount "223"]
>[EventDate "2006.01.08"]
>[EventType "tourn"]
>[TimeControl "60+1"]
>
>{GenuineIntel 3398 MHz  W=11.3 ply; 1,232kN/s; 35,875 TBAs; iBase+.ctg  B=10.3
>ply; 170kN/s; iBase+.ctg} 1. e4 {0} c5 {0} 2. Nf3 {0} e6 {0} 3. d4 {0} cxd4 {0}
>4. Nxd4 {0} Nc6 {0} 5. Nc3 {0} Qc7 {0} 6. Be3 {0} a6 {0} 7. Bd3 {0} Nf6 {0} 8.
>O-O {0} Ne5 {0} 9. Be2 {0} b5 {0} 10. f4 {0} Nc4 {0} 11. Bxc4 {0} Qxc4 {0} 12.
>e5 {0} b4 {0.40/10 1} 13. Qf3 {(exf6) 0.62/11 5} bxc3 {0.09/9 0} 14. Qxa8 {
>(b3) 0.94/10 1} cxb2 {-0.45/8 0} 15. Rab1 {0.22/11 5} Nd5 {-0.40/10 1} 16. Bf2
>{0.38/12 6} Ba3 {0.10/11 3} 17. Nb5 {0.27/12 5} axb5 {0.44/11 2} 18. Qxa3 {
>0.36/9 1} Nc3 {(Nxf4) 0.91/10 6} 19. Qd6 {1.04/11 4} f5 {(Qc6) 0.69/9 3} 20.
>exf6 {1.71/10 3} gxf6 {0.62/10 3} 21. Bc5 {1.85/10 2} Kf7 {0.72/9 1} 22. Rxb2 {
>1.68/10 3} Ne2+ {0.46/9 2} 23. Kf2 {1.24/11 5} Nxf4 {0.22/9 3} 24. Re1 {
>1.04/11 5} Rg8 {(Qc3) 0.00/8 2} 25. Qe7+ {0.84/9 3} Kg6 {0.46/2 0} 26. Re3 {
>0.89/9 4} Rg7 {0.40/7 3} 27. Qf8 {(Qd6) 1.28/8 2} Bb7 {0.00/7 1} 28. Bb6 {
>(Bb4) 0.16/8 4} Nh5 {0.00/7 1} 29. Rb4 {1.09/10 4} Qxc2+ {0.33/8 1} 30. Re2 {
>1.02/11 4} Qf5+ {0.35/9 2} 31. Kg1 {1.02/10 3} h6 {0.57/9 2} 32. Qd6 {
>(Rf2) 1.10/9 2} Kh7 {0.32/8 1} 33. Rf2 {(Qd2) 0.80/10 3} Qh3 {0.19/7 0} 34. Qd2
>{1.08/10 2} e5 {0.40/8 1} 35. Rb3 {0.97/10 3} Qe6 {0.21/8 1} 36. Be3 {0.75/10 2
>} f5 {0.01/8 1} 37. Rxb5 {0.30/10 2} Bc6 {-0.08/9 1} 38. Rb6 {0.20/9 2} f4 {
>(Nf6) -0.36/9 1} 39. Qc2+ {(Bc5) -0.13/10 3} Rg6 {-0.41/9 1} 40. Bc1 {
>-0.29/10 2} e4 {(Nf6) -0.61/8 1} 41. a3 {(a4) 0.21/8 1} e3 {(Qe7) -1.33/9 1}
>42. Re2 {-0.79/9 1} Nf6 {-1.60/8 1} 43. a4 {(Qd3) -1.04/8 1} Qd5 {-2.32/8 4}
>44. Bxe3 {(Rb2) -2.37/9 2} fxe3 {-2.77/7 0} 45. Rb4 {(Rxc6) -3.05/9 1} Qg5 {
>(Qd6) -3.87/7 1} 46. h4 {-3.75/9 2} Qg3 {-3.87/8 1} 47. a5 {-4.53/9 1} Ng4 {
>-3.93/9 1} 48. Rxg4 {-3.68/12 1} Qxg4 {-3.87/10 0} 49. h5 {-4.08/12 2} Qxh5 {
>-4.02/10 1} 50. Rxe3 {-4.32/11 1} Qh4 {(Qg5) -3.89/9 1} 51. Re2 {
>(Qd3) -3.94/9 1} Bf3 {-3.93/8 1} 52. Rf2 {(Rd2) -4.32/11 2} Qd4 {-3.93/9 1} 53.
>Kh2 {-4.77/11 2} Be4 {-3.93/9 1} 54. Rf7+ {(Qe2) -4.48/10 1} Kg8 {-3.96/9 3}
>55. Rf4 {-4.68/11 1} Bxc2 {(d5) -4.02/10 1} 56. Rxd4 {-4.01/11 0} Ra6 {
>(Bf5) -4.02/11 1} 57. Rxd7 {(Rc4) -3.77/12 1} Rxa5 {-4.05/9 0} 58. g4 {
>-3.81/11 2} Bg6 {(Rg5) -4.29/10 1} 59. Kg3 {-3.81/10 1} Ra4 {(Bf7) -4.14/10 1}
>60. Kf3 {-3.75/11 2} Bf7 {-4.04/10 1} 61. Rd6 {(Ke3) -3.84/11 1} Kg7 {
>-4.02/12 1} 62. Kg3 {(g5) -3.90/11 1} Re4 {(Ra1) -4.71/9 1} 63. Kf3 {-3.90/11 1
>} Re1 {(Re6) -4.71/10 0} 64. Kf2 {(Kf4) -4.05/11 2} Re5 {-4.72/11 1} 65. Kg3 {
>(Kf3) -4.04/10 1} Be6 {-4.72/12 1} 66. Rd4 {(g5) -4.13/10 1} Kg6 {
>(Kf6) -4.69/11 1} 67. Kh4 {(Kf4) -4.82/11 1} Re3 {-5.19/11 1} 68. Rf4 {
>(Rd2) -5.30/12 2} Rd3 {(Kg7) -5.21/11 1} 69. Re4 {(Rf8) -3.94/11 1} Kf6 {
>(Bd5) -5.19/10 0} 70. Rf4+ {-3.95/11 1} Kg7 {(Ke5) -5.03/11 1} 71. Re4 {
>-3.94/12 1} Bd7 {(Bd5) -5.02/12 1} 72. Rc4 {(Re7+) -4.11/11 1} Kg6 {
>(Rd1) -4.99/11 1} 73. Rb4 {(Re4) -4.06/12 1} Rd6 {-5.02/12 1} 74. Rc4 {
>(g5) -4.17/12 1} Bc6 {(Rd1) -4.99/11 2} 75. Rc3 {(Rc1) -3.89/11 1} Bh1 {
>(Be8) -4.94/11 1} 76. Re3 {-3.88/12 2} Bb7 {(Rd1) -4.79/10 1} 77. Re8 {
>(Kg3) -3.94/12 1} Bc6 {(Bd5) -4.77/10 1} 78. Rg8+ {-3.96/11 1} Kh7 {-4.04/12 1}
>79. Rc8 {-4.03/12 1} Bd7 {-4.02/11 1} 80. Rc4 {(Rc3) -4.13/12 1} Kg6 {
>(Rd1) -4.02/10 1} 81. Rb4 {(Kg3) -4.08/12 1} Bc6 {(Rd1) -4.10/10 1} 82. Rb6 {
>(g5) -3.84/13 2} Kf6 {(Re6) -3.52/10 1} 83. Ra6 {-3.82/11 1} Kg7 {
>(Re6) -3.61/10 1} 84. Rb6 {(Kg3) -3.89/11 1} Kg6 {(Rg6) -3.61/12 9} 85. Ra6 {
>-3.88/12 1} Re6 {-3.13/11 1} 86. Ra5 {(Ra1) -3.89/12 1} Re3 {(Bf3) -4.02/12 2}
>87. Ra6 {-4.30/13 1} Rc3 {-4.02/12 1} 88. Ra1 {(Ra2) -4.56/12 1} Bb5 {
>(Rc4) -4.10/11 1} 89. Rd1 {(Rg1) -3.87/13 2} Rd3 {-4.10/11 1} 90. Rb1 {
>(Rxd3) -3.89/12 1} Bc6 {-4.02/11 1} 91. Rb6 {(Ra1) -3.84/13 1} Rc3 {-4.02/12 1}
>92. Ra6 {-3.90/12 1} Kf6 {(Rc2) -4.02/13 1} 93. Ra1 {(g5+) -3.89/10 1} Bd7 {
>(Bg2) -4.10/11 2} 94. Rf1+ {-4.07/11 1} Kg6 {-4.10/12 1} 95. Rf4 {
>(Rh1) -4.13/12 1} Be6 {(Rc1) -4.37/10 1} 96. Re4 {(Rf2) -4.08/12 2} Bc4 {
>(Bc8) -4.10/10 1} 97. Rd4 {-3.94/11 1} Kf6 {(Rc1) -4.10/11 1} 98. Rf4+ {
>-3.89/12 2} Kg7 {-4.10/12 1} 99. Rd4 {(Rf2) -3.91/11 1} Bb3 {(Be6) -4.10/11 1}
>100. Re4 {(Rd7+) -3.95/11 1} Kf6 {(Rc1) -4.10/11 1} 101. Rf4+ {(Re2) -3.85/12 1
>} Kg6 {-4.10/11 1} 102. Rd4 {-3.87/13 1} Re3 {-4.04/11 1} 103. Rb4 {-3.55/12 1}
>Kf6 {-4.10/11 1} 104. Rf4+ {-3.34/10 1} Kg7 {-4.10/12 1} 105. Rb4 {
>(Rf1) -0.11/9 0} Be6 {(Bd5) -0.92/13 8} 106. Ra4 {0.00/10 0} Bxg4 {
>(h5) -0.90/12 0} 107. Rxg4+ {(Kxg4) 0.00/14 0} Kf6 {(Kh7) 0.00/1 0} 108. Rg8 {
>0.00/1 0} Re5 {0.00/1 0} 109. Kh3 {0.00/1 0} Rh5+ {0.00/1 0} 110. Kg3 {0.00/1 0
>} Rg5+ {0.00/1 0} 111. Rxg5 {0.00/1 0} hxg5 {0.00/1 0} 112. Kg2 {0.00/1 0}
>1/2-1/2

Thanks, it's an endgame knowledge issue. Trading the rooks at the end (via ..
Bf7 and .. Rc4) is winning.

Vas




This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.