Computer Chess Club Archives




Subject: Re: Differences between 0x88 ,10x12 and Bitboards!?

Author: Robert Hyatt

Date: 08:09:28 11/20/02

Go up one level in this thread

On November 20, 2002 at 05:04:31, Gian-Carlo Pascutto wrote:

>On November 20, 2002 at 04:56:03, Daniel Clausen wrote:
>>On November 20, 2002 at 04:51:24, Gian-Carlo Pascutto wrote:
>>>On November 20, 2002 at 03:44:43, Daniel Clausen wrote:
>>>>And at least in the past, Crafty was the engine which had more
>>>>pawn-evaluation stuff in it than any other engine.
>>>Is this a joke?
>>It was not meant as one. Wasn't Crafty (one of) the first engines, which
>>contained a lot about evaluating passed-pawns?
>Not in a thousand years.
>What you're remembering is all boasting Robert did when he noticed
>Crafty knew some things about outside passers or majorities that
>the then current version of Fritz didn't.
>I don't think Fritz has ever been a very 'smart engine' (though
>it's gotten better), compare to others like Rebel, Hiarcs, etc.
>To extrapolate this to say Crafty has a better pawn evaluation
>than *any* commercial is ludicrous.

I can tell you _exactly_ when commercial engines added outside passed pawns.
You can
back up to 1995 to see that they didn't do much then.  And they _certainly_
weren't doing
things with majorities.  Most still don't in fact.  I've hardly said my pawn
eval was better
than the commercial programs, but I _will_ say that I did things they didn't do,
_before_ they
did them.

how many commercial programs fell for my Bxa7 trap?  In 1995 every last one that
I played
against on ICC.  How many today?  :)

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