Author: Ron Murawski
Date: 22:11:26 11/14/02
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On November 15, 2002 at 00:23:42, Nagendra Singh Tomar wrote: >Hi All, > I think this question has been asked in different forms in this forum but >I was less than satisfied, so I am putting the question once more. > >How much can be the maximum allowable difference in positional score of the two >sides ? > There is no limit, but if you want an engine to play well you'de better stay within believable limits. For instance if you make the penalty for a doubled pawn higher than the value of a pawn, such an engine would rather lose a pawn than have one that was doubled. >i.e assuming BLACK during its search hits a position in the leaf and calls >evaluate, evaluate() finds that black's pieces are wonderfully placed and whites >pieces are pathetically placed but still black is say a bishop down. Is it >sensible to return a +ve eval score in this. >I mean can the maximum allowable difference in positional score be as high as a >bishop or knight's score. > Yes, absolutely. It *can*. But maybe you might not want it to be that high. The only time you can give bonuses that high and get away with it is if a king attack seems immanent and you predict this correctly. >Comments ? > >tomar
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