Author: Howard Exner
Date: 03:43:50 09/20/99
Go up one level in this thread
On September 19, 1999 at 13:57:39, Joakim Nilsson wrote: >On September 19, 1999 at 08:36:20, Howard Exner wrote: > >>On September 18, 1999 at 17:02:34, Thorsten Czub wrote: >> >>>[Event "k6-400"] >>>[Site "?"] >>>[Date "1999.09.18"] >>>[Round "7"] >>>[White "CSTal2.03"] >>>[Black "Hiarcs7.32"] >>>[ECO "B23"] >>>[Result "1/2-1/2"] >>> >>>1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nge7 5. Nge2 Nd4 6. d3 >>>Qb6 7. Nxd4 cxd4 8. Nb1 d5 9. Nd2 Bd7 10. O-O O-O-O 11. Qh5 >>>f6 12. exd5 g6 13. Qf3 Nxd5 14. Nb3 f5 15. Bd2 Re8 16. Ba5 >>>Qa6 17. c4 dxc3 18. Bxc3 Nxc3 19. Rac1 Bc6 20. Rxc3 Kb8 >>>21. Qf4+ e5 22. Qe3 Bxg2 23. Kxg2 h5 24. Kg1 h4 25. a3 Bg7 >>>26. Qc5 Rc8 27. Qd5 Rxc3 28. bxc3 Rc8 29. Rb1 Qc6 30. Qxc6 >>>Rxc6 31. Na5 Rc7 32. gxh4 b6 33. Nc4 e4 34. Nxb6 axb6 >>>35. dxe4 Kb7 36. exf5 gxf5 37. Rb5 f4 >> >>When playing over comp - comp games sometimes interesting positions emerge. >>Here for example on move 37 black played f4 to defend its pawn. However >>the move Rc5 looks much better. Some programs >>may fear playing Rc5 because of the reply Rxc5. If white now replys >>Rxc5 then after pxc5 an easily won position results as the white king >>becomes totally fenced in (this if black plays an eventual Bh6). Black's bishop >>and two pawns prevent white's king from mustering any counter attack while >>black's king leisurely captures white's queen side pawns. >> >>Here's the epd for anyone wanting to test their program: >>8/1kr3b1/1p6/1R3p2/7P/P1P5/5P1P/6K1 b - - id CSTal2.03 - Hiarcs7.32; bm Rc5; >> >>What do other programs play here? > >Rebel 10c plays Rc5 after about 40sec with an eval of +1.36 > >Shredder 2 wants to play Bf8 with an eval of +1.18 > >All on an AMD K6-3 500 with 128ram I tried this one on CM6000 (AMD-233 16MB hash). It chose f4 after about 6 minutes and stayed with it till 12 minutes until I stopped the testing. Even after inputting the better move Rc5, CM6000 replied with Rxc5 but did not yet "see" the trouble that white was in. It's one of those quirky positions that computers have trouble with. > >/Jocke >>>38. Rf5 Bh6 39. a4 >>>Rc6 40. Kg2 Kc7 41. h5 Kd7 42. Rb5 Kd6 43. h3 Kd7 44. Kf3 >>>Rxc3+ 45. Kg4 Rc6 46. a5 bxa5 47. Rxa5 Ke6 48. Ra7 Ke5 >>>49. h4 Rd6 50. Ra5+ Kf6 51. Ra7 Ke6 52. Ra4 Rb6 53. Ra7 Kf6 >>>54. Rc7 Re6 55. Rh7 Ke5 56. Rb7 Re8 57. Rb5+ Kf6 58. Rb6+ >>>Re6 59. Rb5 Re7 60. Rb6+ Kg7 61. Rg6+ Kh7 62. Rc6 Rg7+ >>>63. Kf3 Ra7 64. Kg4 Rg7+ 65. Kf3 Rb7 66. Kg4 Re7 67. Kf3 >>>Rg7 68. Rc4 Rd7 69. Kg4 Kg8 70. Rc6 Kg7 71. Rg6+ Kh7 >>>72. Rc6 Rb7 73. Rc4 Rf7 74. Kf3 Rd7 75. Kg4 Kg7 76. Rc6 Rf7 >>>77. Kf3 Rf5 78. Rc7+ Kh8 79. Rc8+ Bf8 80. Rc7 Bh6 81. Rc8+ >>>Kh7 82. Rc7+ Kg8 83. Rc8+ Bf8 84. Kg4 Rf7 85. Rc4 Bd6 >>>86. Rc6 Bc7 87. Rh6 Rg7+ 88. Kf5 Re7 89. Kg5 Re5+ 90. Kg4 >>>Rd5 91. Ra6 Kh7 92. Rf6 Rd7 93. Kf5 Bb8 94. Kg4 Bc7 95. Kf5 >>>Bb8 96. Kg4 Be5 97. Rf5 Bc7 98. Kf3 Kh6 99. Rf6+ 1/2-1/2
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