Author: Mig Greengard
Date: 14:58:16 09/15/02
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This is a good example of horizon problems in endgames. Since white can maintain its queen advantage indefinitely it's always a big plus until the program is forced to calculate perpetual check draws. White has so many moves to prevent black from queening that it can push the perpetual beyond the horizon. I've had the practical problems explained to me by several programmers, but I still think some sort of binary eval concept for endgames would be interesting. It always drives me nuts when people kibitzing games start talking about a 3.58 advantage in an endgame with just a few pieces and pawns. That is completely useless since it should either be mate or draw at that point. I suppose it's possible nothing can be done about this other than making bigger tablebases. Of course brute force will also get there someday. Saludos, Mig http://www.chessbase.com
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