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Subject: Re: Static Exchange Evaluation (SEE) for pruning in quiescence (?)

Author: Gian-Carlo Pascutto

Date: 02:17:08 08/19/03

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On August 19, 2003 at 05:04:58, Omid David Tabibi wrote:

>[D]3r2k1/pp1r1qpp/2pb4/5p2/3R1P2/8/PPPR2PP/3Q2K1 w - - 0 1
>
>My engine has information about all attacked squares, e.g., it knows that d6
>is attacked by a white rook and defended by a black rook. However, I assume
>that an SEE should be able to find out that Rxd6 is a winning capture. This
>needs a more extensive processing of backed-up attacks (e.g., Rd4 is backed up
>by Rd2 which is backed up by Qd1, and Rd7 is backed up by Rd8). I'm afraid
>this is too costly a process.

Hardly. You can look for the additional attackers after each capture
you try, in an incremental way. And given that there's not many directions
they can come from, this is fast...

--
GCP



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