Author: Uri Blass
Date: 14:35:14 09/14/00
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On September 14, 2000 at 17:19:37, Dann Corbit wrote: >On September 14, 2000 at 17:16:33, Ricardo Gibert wrote: >[snip] >>There is nothing particularly beautiful about a flashy mate when something >>simpler is available. In fact, many top players regard the flashy mate as a >>mistake for practical reasons. > >Beauty is in the eye of the beholder. > >>In a chess game, it is illogical and pointless to >>expend extra effort to find them. > >And yet all commercial chess programs seem to continue the search if I ask them >to. Did they get it wrong? I think that part of the commercial programs will stop the search when they finish the iteration that they find mate. The point is not finding shorter mate after you found a long mate but searching for mate when it is more productive to search other lines. The target of the commercial programs is not to find mates as fast as possible but to play better and they were not build to see 16 plies as fast as possible or to find the shortest mate as fast as possible. They can go deeper in the same time if they do more pruning or do less extensions. 16 plies of program A is not eqvivalent to 16 plies of program B so I do not see the point of searching a fixed number of plies. Uri
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