Author: Tom Kerrigan
Date: 08:41:57 03/06/00
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On March 06, 2000 at 07:27:38, leonid wrote: >I hope that you will change your idea by the time and will go into complet chess >game creation. Many things from the creation of mate solver could be very useful >there. I found, for instance, that nobody put its checking moves at the head of >the chain of moves. And this idea came simply from the mate solver. I am sure >that you came to the same alignement of the moves. No, this just hilights the difference between a mate finder and a chess program. I changed the move ordering in my program so checks are ordered high. The result is that my search trees increased in size by 34% (sometimes less than 10%, other times more than 100%). This doesn't take into account how much more work the move generator has to do to see if a move is a check or not (resulting in fewer NPS). So I'm sure that ordering checks high is very helpful in a mate finder, but it seems pretty stupid to do in a chess program. (In other words, there is a good reason why nobody does this in their chess programs.) -Tom
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