Author: Vincent Diepeveen
Date: 07:30:33 07/13/02
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On July 13, 2002 at 02:22:00, Omid David wrote: >On July 13, 2002 at 02:07:17, Vincent Diepeveen wrote: > >>I still do not understand which positions you talk about which R=2 >>is finding and R=3 isn't. > >I read your other post, that's also my point: Although at fixed depth, R=2 is >much better than R=3 (see also "adaptive null-move pruning" Heinz 1999), in >practice R=3 performs about the same as R=2 since on many occasions it finds the >correct move one ply later with lower search cost. Not on 'many occassions'. *always* here. I only remember like 1 or 2 artificial positions in testsets where it takes 1 ply more. So that's 1 or 2 positions in 100000, whereas you get a ply more with R=3. Best regards, Vincent >Best regards, >Vincent
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