Author: Uri Blass
Date: 01:31:15 12/13/03
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On December 12, 2003 at 20:43:25, Dann Corbit wrote: >In solving WAC at 5 seconds per position on a 950 MHz AMD Athlon machine, Crafty >solves 294 out of 300. That is pretty run of the mill as far as top engines go. No Knightdreamer is not a top engine and it solved 297/300 in 5 seconds in slower hardware(733 mhz PIII). see http://www3.tripnet.se/~owemelin/johan/KnightDreamer.html and look in version history. I do not have chessmaster9000 but I believe that it is slightly better than knightdreamer in solving test suites. I also think that some of the problems in Wac are solved for positional reasons(for example Rb4). personally I do not like 0.00 scores for positions that one side has material advantage and you only suspect that it is a draw. The question is if detect draw does not detect draw for non drawn position. If it means that in most of the cases it is draw but there are mistakes then it may be better to use something between 0.00 and 1 pawn advantage for the better side based on the static evaluation without detect draw. 0.00 is justified only if you are sure that the position is a draw or both sides have the same chances. Note that even if you detect other moves as +1 for black crafty can solve it because it detected Rb4 as +1.18 for black at depth 14. Uri
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