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Subject: Re: Chess knowledge (eg: SOS)

Author: pete

Date: 13:34:55 03/30/00

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On March 30, 2000 at 13:36:56, ujecrh wrote:

>
>It is surprising to see that different people can get a really different feeling
>about a given program (no blame, it is probably very difficult to evaluate
>positional understanding of an engine). For instance, look at the two following
>summaries:
>
>----------------
>from WCCC pages:
>SOS
>Rudolf Huber
>SOS is a program which focuses on calculating speed rather than programmed
>chess knowledge. Since its author is not a chess player, the strength of the
>program has to come from its speed to calculate the variations. Up to now SOS
>has never won against a program which calculates faster, however there are not
>too many of them. Still, the author believes that the above mentioned apprach to
>computer chess delivers the best playing strength per programming effort ratio.
>----------------
>from Franks's chess pages:
>SOS plays a very positional and agressive chess game, which makes it an
>interesting new addition to the winboard engines. The comprehensive amount of
>chessknowledge is used efficiently. In games at tournament time control it can
>beat anyone. A new favourite of mine.
>----------------
>
>Maybe it was two slightly different versions but it is still surprising. I used
>to think that the main gap between commercial chess engines and amateur ones was
>the amount of chess knowledge put into it (with some exception among commercial
>engines that are known as really fast searchers). Is that still true or is there
>any amateur engine that contains heavy chess knowledge ?
>
>Ujecrh

I think you are right that most _availlable_ amateur engines don't focus on
chess knowledge that much although this imho is not the major reason why they
are weaker than the commercials though .

try Gromit 2.20 though ( I am not sure about the exact version ; the last one
with a 2 in front ) ; you might be really surprised ...

For me it is still the most interesting amateur program around .

pete



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