Author: Colin Frayn
Date: 03:22:07 07/26/02
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On July 25, 2002 at 18:26:40, Scott Gasch wrote: >My question for other programmers around is: is there anyone else playing with >this null verification search and how are your results / impressions? I'm using it in Beowulf, though I'm retaining some of the preliminary checking stuff (i.e. don't try nullmove at all if there is virtually no material, if there is a check on the board or if we're on the first two plies.) I'm also experimenting with double null move - that is do up to two null moves in a row on successive plies. That seems to help slightly too. I spent AGES on null move because it just messed up the search so much initially. I'm using adaptive depth search at the moment depending on the current ply and board position. Usually between R=2 and R=3. Cheers, Col
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