Computer Chess Club Archives




Subject: Re: evaluationfunction tuning

Author: Dann Corbit

Date: 11:00:00 09/08/03

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On September 07, 2003 at 16:14:54, JW de Kort wrote:
>Dear Uri
>Thanks for your reply. Strangly my engines plays better against Gerbil than
>against TSCP. My search is not to bad and far more complicated than TSCP's. My
>better search has no effect due to the bad evaluation. That is why i want to
>work on that at the moment.

That is unusual.

You might analyze several failures against TSCP (with a very strong engine) and
see if you can find a consistent point of failure (king safety/passed

Then you might learn what needs fixing.

Tactical strength does not imply playing strength.  In fact, I wrote a program
that projected best fit parabolic curves through parameter sets and that would
automatically tune for strongest tactical performance for Beowulf.  It made it
stronger tactically, but overall it played much worse with the new parameters.

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