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Up Topic Rybka Support & Discussion / Rybka Discussion / Rybka too optimistic, sacrificing a pawn
- By Felix Kling (Gold) Date 2007-12-17 09:44
... for too less compensation: 5.Bd6

The game is from Eduard Nemeth (he posted it in the german section of the forum), but I also experienced such behaviour.

[Event "Wertungspartie, 3m + 0s"]
[Site "Maschinenraum"]
[Date "2007.12.16"]
[Round "?"]
[White "Krakatoa, Rybka 2.3.2b mp"]
[Black "Wolkenlos, Rybka 2.3.2a mp 32-Bit"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2577"]
[BlackElo "2607"]
[Annotator "-0.18;-0.25"]
[PlyCount "265"]
[EventDate "2007.12.16"]
[TimeControl "180"]

{Rybka 2.3.2b mp: 17.3 ply; 204kN/s AMD Athlon(tm) 64 X2 Dual Core Processor
4600+ 2411MHz, (2 threads)} 1. h3 {0} d5 {B/0 0} 2. c3 {0} e5 {B/0 0} 3. d4 {0}
Nc6 {B/0 0} 4. dxe5 {-0.18/13 4} Nxe5 {B/0 0} 5. Nf3 {-0.15/13 5} Bd6 {
-0.25/11 4} 6. Qxd5 {-0.07/14 6} Nf6 {-0.12/14 9} 7. Qb3 {-0.04/16 15} O-O {
-0.10/14 1} 8. Nxe5 {0.00/15 12} Bxe5 {-0.03/15 7} 9. Nd2 {-0.01/16 16} Qe7 {
-0.03/13 3} 10. e3 {-0.01/15 18} c6 {-0.06/11 7} 11. a4 {-0.02/15 9} Bc7 {
-0.05/11 7} 12. Bc4 {-0.13/14 8} Qe5 {-0.13/12 7} 13. Nf3 {-0.10/14 6} Qh5 {
-0.09/13 4} 14. Qc2 {-0.06/13 3} a6 {-0.02/11 9} 15. Be2 {0.00/11 1} Rd8 {
-0.01/11 4} 16. Bd2 {0.00/11 3} Qd5 {-0.04/10 3} 17. c4 {0.00/10 1} Qe4 {
0.07/11 1} 18. O-O-O {0.04/12 0} c5 {0.00/12 5} 19. Be1 {0.00/11 1} Rxd1+ {
0.02/12 1} 20. Kxd1 {0.07/13 1} Qe7 {0.12/13 6} 21. Bd3 {0.06/13 2} Bd7 {
0.06/13 2} 22. Bc3 {0.11/14 1} g6 {0.09/13 3} 23. Kc1 {0.18/15 2} Rd8 {
0.10/13 1} 24. b3 {0.18/14 0} Bc6 {0.12/11 1} 25. Ba1 {0.18/14 6} Nd7 {
0.21/10 3} 26. Rd1 {0.24/15 1} b6 {0.19/11 1} 27. Bb2 {0.29/14 6} Bb7 {
0.22/11 2} 28. Rd2 {0.36/14 3} Bc6 {0.29/12 2} 29. Be2 {0.39/14 3} Be4 {
0.30/10 2} 30. Qd1 {0.39/14 2} Bc6 {0.39/10 1} 31. h4 {0.41/13 0} Re8 {
0.39/10 1} 32. Qc2 {0.51/13 2} Ne5 {0.43/11 0} 33. h5 {0.58/12 2} Qf6 {
0.55/12 3} 34. Rd1 {0.57/11 1} Kg7 {0.64/10 5} 35. hxg6 {0.73/9 0} hxg6 {
0.70/12 2} 36. Bc3 {0.77/14 0} Bb8 {0.73/11 2} 37. Qb2 {0.97/14 1} a5 {
0.94/13 1} 38. Nxe5 {0.97/13 0} Bxe5 {1.03/15 1} 39. Bxe5 {1.10/17 0} Rxe5 {
1.11/17 5} 40. Bf3 {1.09/20 0} Bxf3 {1.13/15 0} 41. gxf3 {1.11/20 2} Re6 {
1.12/17 0} 42. f4 {1.13/19 1} Qxb2+ {1.12/18 0} 43. Kxb2 {1.16/21 3} f5 {
1.15/20 2} 44. Kc3 {1.18/20 1} Kf6 {1.15/18 0} 45. Kd3 {1.23/19 0} Ke7 {
1.19/16 1} 46. f3 {1.23/21 0} Rd6+ {1.20/19 2} 47. Ke2 {1.23/23 0} Re6 {
1.20/19 0} 48. Rh1 {1.23/22 3} Kf6 {1.20/21 1} 49. Rh7 {1.23/23 1} Re8 {
1.20/21 0} 50. Rb7 {1.23/22 2} Re6 {1.20/22 1} 51. Rd7 {1.23/22 1} g5 {
1.20/21 0} 52. fxg5+ {1.23/22 0} Kxg5 {1.20/22 0} 53. Kd3 {1.23/23 2} Kf6 {
1.20/19 2} 54. Kd2 {1.23/23 0} Kg6 {1.20/20 2} 55. Rd5 {1.23/18 0} Kf6 {
1.20/19 1} 56. Kd3 {1.23/20 0} Rc6 {1.20/20 1} 57. Ke2 {1.23/22 0} Re6 {
1.20/20 1} 58. Kf2 {1.23/23 0} Kg6 {1.20/19 0} 59. Rd1 {1.23/22 0} Kg5 {
1.20/20 1} 60. Ke2 {1.23/23 0} Kf6 {1.20/20 0} 61. Rd5 {1.23/22 0} Kg6 {
1.20/20 2} 62. Kd3 {1.23/24 0} Kf6 {1.20/21 2} 63. Rd7 {1.23/24 0} Kg5 {
1.20/18 0} 64. Ke2 {1.23/14 0} Kf6 {1.20/18 0} 65. Rh7 {1.23/21 1} Kg5 {
1.20/18 0} 66. Rh1 {1.23/17 0} Kg6 {1.20/19 1} 67. Rg1+ {1.23/14 0} Kf6 {
1.20/20 1} 68. Rd1 {1.23/19 0} Ke7 {1.20/18 0} 69. Rh1 {1.23/19 0} Rg6 {
1.14/17 1} 70. Rh7+ {1.23/16 0} Kd8 {1.14/17 0} 71. Rb7 {1.33/12 0} Kc8 {
0.86/16 1} 72. Re7 {0.97/14 0} Rg2+ {0.78/17 0} 73. Kd3 {0.79/19 0} Rb2 {
0.81/17 1} 74. Kc3 {0.92/19 0} Re2 {0.84/17 0} 75. Re6 {0.91/18 0} Kb7 {
0.84/18 1} 76. Re5 {0.91/20 0} Kc6 {0.84/17 0} 77. Rxf5 {0.91/16 0} Rxe3+ {
0.84/17 0} 78. Kc2 {0.91/18 0} Re2+ {0.84/17 0} 79. Kd3 {0.79/23 0} Rb2 {
0.83/18 0} 80. Kc3 {0.79/23 0} Rh2 {0.83/19 0} 81. Rf6+ {0.80/13 0} Kc7 {
0.83/19 1} 82. Re6 {0.86/20 0} Rh3 {0.83/17 1} 83. Re3 {0.86/17 0} Kd6 {
0.83/16 0} 84. Kd3 {0.86/18 0} Rh4 {0.83/18 0} 85. Re1 {0.86/20 0} Kd7 {
0.83/17 0} 86. Re4 {0.86/20 0} Rh1 {0.83/18 1} 87. Re3 {0.86/21 0} Rh4 {
0.83/17 0} 88. Re5 {0.86/19 0} Kd6 {0.83/16 1} 89. Rd5+ {0.86/20 0} Ke7 {
0.83/17 1} 90. Ke3 {0.87/22 0} Rh1 {0.83/19 1} 91. Ke4 {0.87/15 0} Ke6 {
0.83/18 0} 92. Rd3 {1.12/18 0} Re1+ {0.83/16 0} 93. Re3 {1.12/21 0} Rd1 {
0.83/20 3} 94. f4 {1.24/21 0} Rh1 {0.96/17 0} 95. Rd3 {1.24/20 0} Re1+ {
1.26/17 0} 96. Kf3 {1.24/20 0} Kf5 {1.32/18 1} 97. Rd5+ {1.24/21 0} Ke6 {
1.29/19 0} 98. Rh5 {1.24/20 0} Rc1 {1.32/18 2} 99. Ke4 {1.24/21 0} Re1+ {
1.32/17 0} 100. Kd3 {1.24/21 0} Kd7 {1.32/18 1} 101. Rh7+ {1.40/13 0} Kd6 {
1.33/16 0} 102. Rh3 {1.40/19 0} Rg1 {1.33/12 0} 103. Ke4 {1.60/14 0} Rg4 {
1.33/15 0} 104. Rd3+ {1.82/17 0} Ke7 {1.97/17 0} 105. Re3 {1.96/19 0} Kd6 {
1.97/16 0} 106. Kf3 {2.01/20 0} Rh4 {2.05/17 0} 107. Kg3 {2.11/20 0} Rh5 {
2.50/16 1} 108. Kg4 {1.91/12 0} Rh7 {2.50/14 0} 109. f5 {2.75/10 0} Rh1 {
2.79/13 0} 110. f6 {2.96/12 0} Rf1 {2.91/12 0} 111. Kg5 {3.51/16 0} Rf2 {
3.46/14 0} 112. Kg6 {3.18/13 0} Rg2+ {4.52/14 0} 113. Kf7 {4.66/16 0} Rf2 {
4.52/13 0} 114. Re6+ {5.02/12 0} Kd7 {4.51/12 0} 115. Rxb6 {5.12/16 0} Rf1 {
5.03/13 0} 116. Rb5 {5.09/11 1} Rf3 {4.78/10 0} 117. Rxa5 {5.02/11 0} Rxb3 {
4.93/13 0} 118. Rxc5 {5.02/11 0} Re3 {5.53/12 1} 119. Rd5+ {8.36/12 0} Kc7 {
5.11/8 0} 120. Kg6 {8.39/6 0} Rg3+ {7.93/7 0} 121. Rg5 {7.31/4 0} Rd3 {
8.72/11 0} 122. f7 {8.71/7 0} Rd8 {8.91/10 0} 123. Kg7 {8.88/9 0} Rd7 {
9.81/10 0} 124. Kg8 {8.78/5 0} Rd8+ {9.02/6 0} 125. f8=Q {#10/7 0} Rxf8+ {
#9/6 0} 126. Kxf8 {#8/1 0} Kb7 {#7/1 0} 127. Rb5+ {#7/1 0} Kc8 {#6/1 0} 128. a5
{#6/1 0} Kc7 {#5/1 0} 129. Ke7 {#5/1 0} Kc6 {#5/1 0} 130. Ke6 {#4/1 0} Kc7 {
#4/1 0} 131. Rb6 {#3/1 0} Kc8 {#2/1 0} 132. Kd6 {#2/1 0} Kd8 {#2/1 0} 133. Rb8#
{#1/1 0} 1-0
Up Topic Rybka Support & Discussion / Rybka Discussion / Rybka too optimistic, sacrificing a pawn

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