Author: Gian-Carlo Pascutto
Date: 01:37:06 06/29/02
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On June 28, 2002 at 12:40:46, J. Wesley Cleveland wrote: >On June 28, 2002 at 03:32:35, Gian-Carlo Pascutto wrote: > >>On June 27, 2002 at 18:05:57, Robert Hyatt wrote: >> >>>I evaluate them pawn-by-pawn. No real penalty here because of the connected >>>passer pair on the b and c files... Actually, in looking at the code, I only >>>evaluate the most advanced passer on each file for the critical scoring. >>> >>>Each pawn gets some usual positional stuff added in, But then the endgame- >>>specific code only looks at the most advanced passer on each file, since it is >>>the one that is most dangerous... >> >>Robert, do you have any idea why Crafty does so well here? >> >>Compared to Crafty, my thing takes ages. So does Yace. So does Fritz, etc... >> >It appears to be an evaluation change put in between 18.12 and 18.13. Must be this: EvaluatePassedPawnRaces() fixed so that if one side has two pawns that are far enough apart, it will recognize that even though the king is "in the square" of either, it can't always stay in the square of one if it has to capture the other. -- GCP
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