Author: Robert Hyatt
Date: 19:50:47 07/06/98
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On July 06, 1998 at 21:21:51, David Eppstein wrote: >On July 06, 1998 at 20:40:01, Robert Hyatt wrote: >>Not sure why it was removed, probably >>at the request of someone that insisted on finding shorter mates. Once a mate >>score hits the hash table in CB or the other Store() code, that's it... > >Which is why I suggested the version at the start of this thread: >treat mate scores as infinite depths when using them for a cutoff. >But if the mate score is within the alpha,beta window, use the actual >finite depth. That causes the same problem... you fail high but can't resolve the score because you find the mate bound, but can't search deeply enough to find the mate score... I'd do one or the other, but not a mixture. I think that Bruce only stores a >XXX for mates or mate bounds, but I have never had a bit of trouble with storing actual mate scores, and haven't for many many years.
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