Author: Uri Blass
Date: 16:02:34 06/15/02
Go up one level in this thread
On June 15, 2002 at 15:52:32, Bernhard Bauer wrote: >On June 15, 2002 at 12:58:48, J. Wesley Cleveland wrote: > >>On June 14, 2002 at 21:02:30, J. Wesley Cleveland wrote: >> >>>This is Chessboard magic #67 >>> >>>White to move and win - with 5 man TBs you should be able to find the mate, if >>>you can solve it at all. Don't take +2.2 as a solution. >>> >>>[D]4KBkr/7p/6PP/4P3/8/3P1p2/8/8 w - - 0 1 >> >>I guess I should have said difficult for crafty. Crafty can't solve this >>position in a reasonable length of time (or possibly at all). Even a few moves >>down the solution path, crafty can't see it. >>[D]4K1kr/6Pp/5q1P/4P3/8/3P4/8/8 w - - 0 4 >> >>the solution here is gxh8=Q Qxh8 d4!! One of the prettiest moves I've seen. Even >>at ply 30, crafty does not see it. > >That's why I modify crafty. >Crafty should have something to detect zugzwang at least in the endgame. >On a P3-700 my modified Crafty 18.13 finds g7 in 0 sec. >After 4 sec the score is about 10 and after a minute the score is 21. >No difficulty to solve such positions for crafty. > >Kind regards >Bernhard Movei has no problem to see it. Movei does not use null move when the number of legal moves of one of the players is less than 10. 6 -135 66 25190 f8c5 h7g6 e8e7 h8h6 e7f6 h6h5 6 -134 99 36868 g6g7 6 0 116 41898 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 e5f6 6 0 132 49471 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 e5f6 7 0 171 66509 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 e5f6 7 0 231 96344 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 e5f6 8 145 467 196853 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 8 145 588 251779 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 9 135 797 342662 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e8e7 9 135 1028 451427 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e8e7 10 153 1451 599762 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e8e7 g7g6 10 153 2741 1115513 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e8e7 g7g6 11 139 3944 1535718 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e8d7 h7h5 d7c6 g7f7 11 139 8756 3266986 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e8d7 h7h5 d7c6 g7f7 12 878 10244 3944872 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e8d7 g7g6 e5e6 g6f5 e6e7 f5e4 e7e8q e4d4 12 878 12128 4826365 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e8d7 g7g6 e5e6 g6f5 e6e7 f5e4 e7e8q e4d4 13 888 14990 6142332 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e5e6 g7f6 e8d7 f6f5 e6e7 f5e4 e7e8q e4d4 13 888 20620 8251692 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e5e6 g7f6 e8d7 f6f5 e6e7 f5e4 e7e8q e4d4 14 972 29358 12466463 g6g7 f3f2 f8e7 f2f1q e7f6 f1f6 g7h8q f6h8 d3d4 h8g7 h6g7 g8g7 e5e6 g7f6 e8d7 f6f5 e6e7 f5e4 e7e8q e4d4 e8h5 d4e4 h5h7 Uri
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