Author: Andrew Williams
Date: 06:01:12 12/23/02
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On December 23, 2002 at 08:33:09, Vladimir Medvedev wrote: >I have read "version history" files of some open source programs. >Almost all authors mention solving WAC002 as some of milestones on their way :) > >Currently my program GreKo can solve WAC002. The common-known clue is to give >some bonus for two far connected passers. > >The question is, what is the compromise value for this bonus? > >When I set this value to 350, my engine finds the solution very quick (at depth >of 8-9, depending on other parameters), but this leads to some "strange" moves >in practic games. > >Now I use default value of = 275, and GreKo still can solve WAC002 - but at >depth of 12. I think that "strange sacrifices" in middlegame became much more >rare. > >What is your experience with different values of this parameter? My bonuses vary a lot depending on many factors. In this situation, my program believes that Rooks are "clumsy" when defending against connected, far advanced passers and the bonus goes up accordingly. Knights are also clumsy in this sense. My program finds this at depth 12 in 3.6 seconds (Athlon 1200). Andrew
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