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Subject: Re: qSearch and stand pat question

Author: Tord Romstad

Date: 07:17:19 11/04/03

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On November 04, 2003 at 09:53:16, Daniel Clausen wrote:

>I don't have much experience when it comes to evaluate such positions with my
>engine, but are you sure it's a good idea to evaluate two connected pawns on the
>7th row at least one rook? Are there more positions where this is right than
>wrong?

If you do it more carefully, I don't think the risk is very big.  My impression
is that I win more games than I lose because of high passed pawn scores.

>I can imagine that chances that this is good are rather high when there are no
>queens around anymore. But with queens still on the board I can imagine lots of
>checks which capture one pawn and give check at the same time, which quickly
>nullifies the advantage again.

Yes, you definitely should consider the material left on the board when
evaluating advanced passed pawns.  I scale the passed pawn evaluation
depending on the amount of material left, and subtract a further amount
if the opponent has a queen.

Tord



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