Author: Albert Bertilsson
Date: 07:09:46 03/03/03
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On March 03, 2003 at 09:43:24, Robert Hyatt wrote: >On March 03, 2003 at 09:13:36, Albert Bertilsson wrote: > >>Hi! >> >>During a recent game my engine reported that a mate in 2 was found, then after >>the next opponent move it reported that a mate in 3 was found. Does this >>indicate a bug in the engine? >> >>If it matters the opponent didn't followed the PV that engine displayed mate in >>2. But after the mate in 3 was claimed the opponent followed the PV until its >>defeat. >> >>/Regards Albert > > >It could be > >(a) a bug in hashing, where you don't adjust the mate score before storing it, >or you >don't adjust it when you hit it in the table. > >(b) your extensions make it easier to find the mate in 3 than the mate in 2 and >you quit >too soon. I interpret your answer as this should not happen if the engine has no bugs and no extensions. Since Sharper doesn't have any extensions it would be (a) then... alhtough I can't see how this could happen. Hmm... hope I can find anything in those .cpp files... =) /Regards Albert
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