Author: Robert Hyatt
Date: 17:16:18 05/17/00
Go up one level in this thread
On May 17, 2000 at 19:44:10, Jerry Adams wrote: >On May 17, 2000 at 18:11:08, Robert Hyatt wrote: > >>On May 17, 2000 at 15:53:21, Jerry Adams wrote: >> >>>On May 17, 2000 at 15:34:05, Robert Hyatt wrote: >>> >>>>On May 17, 2000 at 15:10:51, Jerry Adams wrote: >>>> >>>>>Hi >>>>> >>>>> My Crafty has been losing won positions because of it's horrible endgame. At >>>>>present I have absolutely no tablebases. I was under the impression that >>>>>tablebases would only account for a few additional rating points. Iv'e seen >>>>>crafty actually draw when it had a rook and King against a King!!! Question: How >>>>>can I build tablesbases without using alot of harddrive space? I only have a 4 >>>>>gig hardrive. I would like crafty to be able to atleast win rudimentary >>>>>endgames. I am using winboard. >>>> >>>> >>>>If it draws with rook and king vs king, you have something broken. It has >>>>specific code for such 'mating position'. I have had it play hundreds of games >>>>with itself, one side using egtb's, the other not. It has never failed to mate >>>>with KR vs K easily. Not "optimally" usually, but quickly and easily. >>>> >>>>IMHO Crafty is not a "stupid program" in endings. It handles itself pretty well >>>>most of the time. Unless something is broken or mis-configured. If you have a >>>>log.nnn file where it couldn't win KR vs K, that might tell what was happening. >>> >>> >>> >>> OKay here is the game played on ICC , Judge for yourself >>> >>> >>> >>>Event "ICS rated blitz match"] >>>[Site "chessclub.com"] >>>[Date "1998.12.05"] >>>[Round "?"] >>>[White "PostModernist"] >>>[Black "cmslim"] >>>[Result "1/2-1/2"] >>>[WhiteElo "2681"] >>>[BlackElo "2389"] >>>[ECO "C24"] >>> >>>1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Be7 5. O-O O-O 6. Re1 d6 7. a4 h6 >>>8. h3 Na5 9. Bd5 Nxd5 10. exd5 Bf6 11. Bd2 c6 12. Bxa5 Qxa5 13. dxc6 bxc6 >>>14. Nc3 Rb8 15. Ne4 Be7 16. b3 Qc7 17. d4 d5 18. Nc3 e4 19. Ne5 Bb4 20. >>>Qd2 c5 21. Nxd5 Bxd2 22. Nxc7 Bc3 23. Nb5 Bxa1 24. Rxa1 cxd4 25. Nxa7 d3 >>>26. Nac6 dxc2 27. Nxb8 Rd8 28. Nbd7 Bxd7 29. Rc1 Bxa4 30. Rxc2 Bxb3 31. >>>Rb2 Be6 32. Rb4 f6 33. Nc6 Rd6 34. Nd4 Bd7 35. Kh2 f5 36. h4 g5 37. h5 >>>Kg7 38. Nb3 Be8 39. Nd4 Kf6 40. Rb8 Bf7 41. Nb5 Ra6 42. Nd4 f4 43. Rb5 >>>Bxh5 44. Nf5 Ra2 45. Nxh6 Rxf2 46. Ng8+ Kf7 47. Rxg5 e3 48. Kg1 Bg6 49. >>>Nh6+ Kf6 50. Rc5 Re2 51. Ng4+ Kg7 52. Rc7+ Kg8 53. Rc8+ Kf7 54. Ne5+ Kf6 >>>55. Nxg6 Kxg6 56. Kf1 Rd2 57. Re8 Kf5 58. Re7 Kg4 59. Rg7+ Kf5 60. Re7 >>>Kg4 61. Rg7+ Kh5 62. Re7 Kh4 63. Rh7+ Kg5 64. Re7 Rc2 65. Re8 Ra2 66. Rb8 >>>Rd2 67. Re8 Kg4 68. Rh8 Rb2 69. Rg8+ Kh5 70. Rh8+ Kg6 71. Rf8 Kg5 72. Rh8 >>>Rf2+ 73. Kg1 Rd2 74. Rg8+ Kf5 75. Kf1 Rf2+ 76. Kg1 Ra2 77. Rf8+ Kg5 78. >>>Rg8+ Kf5 79. Rf8+ Ke4 80. Re8+ Kd3 81. Rd8+ Ke2 82. Rd4 f3 83. gxf3 Ra8 >>>84. Rd5 Rg8+ 85. Kh2 Kf2 86. Kh3 e2 87. Re5 Rg3+ 88. Kh4 Rxf3 89. Rxe2+ >>>Kxe2 90. Kg5 Kf2 91. Kg6 Kf1 92. Kg7 Re3 93. Kg8 Ke2 94. Kg7 Rg3+ 95. Kf7 >>>Ke3 96. Kf8 Rf3+ 97. Ke8 Ke2 98. Ke7 Ke1 99. Kd6 Rg3 100. Kd5 Rd3+ 101. >>>Ke4 Ra3 102. Kd4 Ke2 103. Kd5 Ra7 104. Kd6 Kf3 105. Kc6 Kg3 106. Kd6 Ra1 >>>107. Ke7 Kg4 108. Kd6 Kf3 109. Ke6 Kf4 110. Kd6 Ra7 111. Ke6 Rh7 112. Kd5 >>>Rh1 113. Kd6 Kf5 114. Kd7 Kg6 115. Ke7 Rh7+ 116. Ke6 Rh1 117. Ke7 Rc1 118. >>>Ke6 Ra1 119. Ke5 Ra6 120. Ke4 Ra7 121. Ke5 Rh7 122. Ke6 Rh6 123. Ke5 Rh1 >>>124. Ke4 Kf6 125. Kd4 Kf7 126. Ke4 Ke6 127. Kd4 Ke7 128. Kd5 Rh7 129. Kc5 >>>Kf6 130. Kd5 Rh4 131. Kd6 Rh1 132. Kc6 Rc1+ 133. Kd6 Kf7 134. Kd7 Rb1 135. >>>Kd6 Ra1 136. Kc6 Ke7 137. Kc5 Ra2 138. Kb6 Kd8 139. Kc6 Rh2 1/2-1/2 >> >> >>That looks like an old version (fairly old version) that had a bug in the >>evaluation code and never could call the EvaluateMate() function. This was >>fixed several versions back, although I don't remember exactly when. >> >>Your game doesn't provide (1) which version and (2) the actual log output >>which would show what is going on. I just tried a quick check to be sure >>it still works and all is well. I don't remember exactly what caused this >>bug, but someone else found and reported it a good while back. 17.10 won't >>do this. > > > I have a million log files in my crafty directory, how do I tell which log file >is for that particular game that was played? Good question. The log will have the name of the opponent in it, which will help. You can then check for the result line in the log file with 1/2-1/2 as the game end result.
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