Computer Chess Club Archives




Subject: Re: Crafty CCT6 notes

Author: Robert Hyatt

Date: 08:24:28 02/02/04

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On February 02, 2004 at 11:02:53, Josť Carlos wrote:

>>White helps, but crafty has this inate built-in idea of not "sitting".
>  Can you explain in simple words how you code that idea?
>  Josť C.

Sure.  Basically a "cascading" evaluation where the most important feature is to
avoid blocked pawns.  If pawns can move, they can produce open lines.  Open
lines lead to active pieces, active pieces lead to king safety issues for the
opponent, and so forth.  It also requires some "speculative" evaluation where
you accept some risk for some gain, rather than doing nothing.  Asymmetry also
plays here or else you are tempted to sit still.

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