Author: Steffen Jakob
Date: 01:55:13 02/17/02
Here is another position which is easy to solve for humans. In a blitz game
between Hossa and Arasan the following position was on the board:
[D]8/8/4B2p/2K5/r5P1/p5k1/Rb6/8 b - - 7 116
For humans it's rather easy to see that 117... Rxg4 wins without any problems
because the white rook is totally paralyzed. Unfortunately Hossa wasn't able to
see this in the blitz game. So the game continued until the 50 moves rule forced
Hossa to take the bishop and finally to win the game.
Which engines find 117... Rxg4 in which time?
Here is the complete game score:
[Event "ICC 5 5"]
[Site "Internet Chess Club"]
[Date "2002.02.17"]
[Round "-"]
[White "ArasanX"]
[Black "Hossa"]
[Result "0-1"]
[ICCResult "White resigns"]
[WhiteElo "2544"]
[BlackElo "2541"]
[Opening "QGD: Tartakower (Makagonov-Bondarevsky) system"]
[ECO "D58"]
[NIC "QO.10"]
[Time "03:39:22"]
[TimeControl "300+5"]
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 h6 6. Bh4 O-O 7. e3 b6 8. Be2
Bb7 9. Bxf6 Bxf6 10. cxd5 exd5 11. O-O Re8 12. Qc2 g6 13. b4 c6 14. Rfc1 Bh8
15. a4 Qd6 16. Rab1 Nd7 17. a5 Rab8 18. a6 Bc8 19. Nd1 Re6 20. b5 c5 21. Nc3
Re8 22. Rd1 Nf6 23. Ne5 Ra8 24. Rbc1 Bf5 25. Bd3 Be6 26. Be2 Bf5 27. Qa2 Bg7
28. Bf3 Be6 29. Qe2 Qc7 30. Qd2 Rad8 31. Nc6 Rd6 32. dxc5 bxc5 33. e4 d4 34.
e5 Rxc6 35. bxc6 dxc3 36. Qd6 Qxd6 37. exd6 Nd7 38. cxd7 Bxd7 39. Re1 Rd8
40. Rb1 c2 41. Rbc1 Bf5 42. d7 Rxd7 43. g4 Bd3 44. Bc6 Rd8 45. Ba4 Bb2 46.
Rxc2 Bxc2 47. Bxc2 c4 48. Rd1 Bd4 49. Kg2 Kf8 50. f4 Ke7 51. f5 gxf5 52.
Bxf5 c3 53. Kf3 Kf6 54. Ke4 Re8+ 55. Kd5 Be5 56. Rf1 Rd8+ 57. Bd7+ Kg5 58.
Kc6 Bxh2 59. Rxf7 Rb8 60. Rf3 Rb6+ 61. Kc5 Rb3 62. Rf5+ Kh4 63. Rf1 Be5 64.
Kd5 Bg7 65. Bf5 Ra3 66. Bd3 Ra5+ 67. Ke4 Ra4+ 68. Kf5 Kg3 69. Be2 Ra5+ 70.
Ke4 c2 71. Rc1 Re5+ 72. Kd3 Re6 73. Rxc2 Rxa6 74. Rc7 Be5 75. Rf7 Bf4 76.
Re7 Ra2 77. Kc4 a5 78. Kb3 Rd2 79. Re4 Rd7 80. Ka4 Bd2 81. Kb5 Rb7+ 82. Kc6
Rb2 83. Bd1 Rb8 84. Rd4 Be3 85. Re4 Rc8+ 86. Kd7 Rc3 87. Ke6 Bf4 88. Kf5
Rc5+ 89. Ke6 Rc8 90. Rd4 Be3 91. Ra4 Rd8 92. Bc2 Bd2 93. Rc4 Bf4 94. Bf5
Rd6+ 95. Ke7 Ra6 96. Ra4 Bd2 97. Be6 Bb4+ 98. Kf7 Kf4 99. Ra2 Bc3 100. Rh2
Bg7 101. Rf2+ Kg3 102. Ra2 Bd4 103. Ra4 Bb2 104. Bc8 Rc6 105. Bd7 Rf6+ 106.
Ke7 Ra6 107. Bc8 Ra8 108. Bf5 Bc1 109. Kd6 Bd2 110. Ke5 Bb4 111. Ra2 a4 112.
Kd5 a3 113. Ke4 Bc3 114. Be6 Ra4+ 115. Kd5 Bb2 116. Kc5 Ra5+ 117. Kd6 Ra6+
118. Kd5 Kf4 119. Bd7 Kf3 120. Kc5 Ra7 121. Kd6 Ke3 122. Be8 Kf4 123. Bh5
Ra5 124. Kc6 Kg3 125. Kd6 Ra6+ 126. Kd5 Ra4 127. Kc5 Ra7 128. Kd5 Ra8 129.
Ke4 Ra4+ 130. Kd5 Kh3 131. Kc6 Kh4 132. Kc5 Ra6 133. Kb5 Ra7 134. Kb6 Ra8
135. Kb5 Kg5 136. Kc4 Ra5 137. Kb4 Ra7 138. Kc5 Rc7+ 139. Kb5 Kf4 140. Kb4
Rc2 141. Ka4 Rc8 142. Kb3 Rb8+ 143. Kc4 Kg5 144. Kd5 Rb5+ 145. Kc6 Ra5 146.
Kd6 Ra8 147. Kc6 Kf4 148. Kc5 Ra6 149. Kd5 Kg5 150. Kc4 Ra4+ 151. Kc5 Re4
152. Kb5 Rd4 153. Kc5 Rd1 154. Kb4 Re1 155. Ka4 Re7 156. Kb4 Rb7+ 157. Kc5
Ra7 158. Kd6 Kf4 159. Kc6 Ra4 160. Kc5 Re4 161. Kd5 Re5+ 162. Kd6 Rxh5 163.
gxh5 Kg4 164. Ke6 Kg5 165. Kd5 Kxh5 166. Ke4 Kg4 167. Ke3 Kg3 168. Ke2 Kg2
169. Ke3 h5 170. Kf4 h4 171. Rxa3 Bxa3 172. Kg4 h3 173. Kg5 {White resigns}
0-1
Best wishes,
Steffen.
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