Author: Gerd Isenberg
Date: 02:24:19 08/09/02
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On August 08, 2002 at 18:00:07, Dieter Buerssner wrote: >On August 07, 2002 at 18:39:46, Gerd Isenberg wrote: > >>I agree, but see my post below. > >Gerd: "With the little help of a "king in corner"- repetition heuristic IsiChess >found >Ne5 in 12secs (depth 8) on my Athlon XP2000+ ~256MB Hash. I suppose that >programs that solve this fast, use similar. I think this heuristic is wellknown >but controversial. It can be combined with "contempt" factor." > >I guess, you mean this. Sounds very interesting, but I don't understand it. I >have never heard of this heuristics. Would you like, to elaborate on it? > >Cheers, >Dieter Hi Dieter, yes, this is what i meant, but also the following passage. It's simply a positive, optimistic "draw" score for the attacking queen side, if the enemy king in (near) corner is checked by the queen and the position is a first repetition. If the attacking queen side has more well developed pieces which may support the queen, the "draw" score is rather high, like a contempt factor against a stronger opponent. The idea is to direct the search to this attack, but hopefully finding a better alternative than the perpetual check. Regards, Gerd
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