Author: Robert Hyatt
Date: 19:07:02 11/14/99
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On November 14, 1999 at 21:45:26, William Bryant wrote: >I recently found that my null threashold is set to low, and I am experimenting >with different level. > >I am curious what other people have found works for them. > >Do you count pieces or pieces and pawns? > >How may pieces or pieces and pawns must be present for the side on move >to allow a null move? > >Thanks in advance. > >William >wbryant@ix.netcom.com I would suggest that you look at crafty's source (search.c) to see what I do. Basically I use R=3 near the root, and R=2 near the tips. If there is a queen or more on the board, I do null move, period. If there is less than a queen, then I still do null move, but not near the root, so that I can 'out-search' the common zug problems. If the side on move has no pieces, just pawns, null-move is disabled for this side...
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