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Subject: Re: Question: Blocked Pawn Evaluation Question

Author: Peter McKenzie

Date: 22:02:27 01/11/00

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On January 11, 2000 at 22:52:42, William Bryant wrote:

>The issues of adding a term to the evaluation for blocked pawns has come up
>in at least one thread recently, and got me thinking about adding this to
>the evaluation.
>
>There are several ways to do this and it raised several questions.
>
>Do you count pawns blocked by opposite pawns only?
>Do you also count pawns blocked by opposing pieces?
>Do you count pawns blocked by your own pawns ? (I would think this would
>	be handled by a doubled pawn penalty.)
>
>Do you count blocked pawns only for the side on  move?
>	Otherwise, for pawns blocked by enemy pawns, the same penalty will be
>	applied to both sides in the evaluation and the net score remains unchanged?
>
>Any thoughs or comments would be appreciated.

Well, I'm not keen on a blocked pawn penalty but I am interested in detecting a
blocked position.  This could, for example, be used to increase the value of
knights.  I haven't implemented anything yet, but I'm thinking that counting
pawns blocked by opposing pawns would be the sufficient.  Maybe blocked central
pawns are more important?

cheers,
Peter

>
>William
>wbryant@ix.netcom.com



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