Author: Scott Gasch
Date: 11:55:58 04/03/01
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On April 03, 2001 at 03:55:26, Gian-Carlo Pascutto wrote: >The results seem to vary quite a bit. In silent positions it seems to hurt >more than help, but I got slight speedups on some tactical positions. > Well, I spent quite a while reworking some move generator code last night to facilitate some experiments. I found the same thing as you did, I think. 1. Allow losing captures as killer moves: tree sizes increased and first move beta percentage fell in normal positions. I did find some rare positions where this was beneficial, though. 2. Allow losing captures as killer moves if they beat beta by a certain margin: same results... scaled with margin. Looks like this is not such a great idea. Back to wading through the output of my non-first move beta cutoff dump for me. Thanks, Scott
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