Author: Sune Fischer
Date: 04:00:10 11/01/03
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On November 01, 2003 at 06:09:42, Francesco Di Tolla wrote: >In this position > >[D] 8/8/8/8/7q/4k3/8/6K1 b - - 0 1 > >many engines say 1 to mate and many other say 2 to mate. > >Why there is no consensus? I can offer a few possible explanations. 1) The winboard protocol has no standard for sending distance to mate, so if you've observed this with wb-engines in Arena, it is most likely Arena interpreting the scores wrong (e.g. it does that for my engine). 2) I think some engines analyze as they would play and so they might send a checkmate score when giving the mating move, ie. offset by 1. IMO the correct thing is to send "mate in 1" and then make the mating move. -S.
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