Author: Ferdinand S. Mosca
Date: 09:36:47 04/30/02
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On April 30, 2002 at 11:51:29, JW de Kort wrote: >hi friends > >i am currently working on the improvement of my pawn evaluation. I wonder how to >define a weak pawn. I have studied the appropriate code in Crafty but it is not >completely clear to me. Is it correct to assume that a pawn cannot be weak if it >is not on a open file? Nice question!! I think it is not safe to assume, consider: 1. isolated pawn but not exposed to opponent's open file, it is weak but tolerable :) 2. doubled pawn is weak and likewise isolated doubled pawn 3. backward pawn is weak, say wpawn at b5/a4 vs bpawn at a7/b6 black's pawn at a7 is weak. 4. not normally advanced pawn is generally weak, since we need space for our pieces (see 3) 5. color occupied by a pawn may sometimes be considered weak. 6. a pawn in an open file is not always weak. Regards, Dinan > > >Thanks in advance > >Jan WIllem
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