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Subject: Re: Crafty-IsiChess,CCT4,r11 ==> A move to avoid?

Author: Dieter Buerssner

Date: 16:56:20 01/30/02

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On January 30, 2002 at 17:59:18, Gerd Isenberg wrote:

>I use some easy generated Bitboards for Pawns, blocked by enemy Pawns (Widder)
>and Backward Pawns. If most of the pawns are Widder or backward but no Hebel
>(pawn may capture pawn), the pawn position is considered as blocked.

Gerd, this all sounds very interesting. How do you detect backward pawns and
"Hebel" (pawn levers?) by Bitboard operations? Would you consider in white
Pa6,b5, black Pa7 the pawn b5 backward? I thought about some such things, but I
found it not very easy to find convincing rules without many exceptions and easy
to calculater for the "blockedness" of the pawn structure.


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