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Subject: Re: How good is GNU Chess?

Author: Daniel Kang

Date: 17:05:41 11/18/00

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On November 18, 2000 at 19:50:57, Pete Galati wrote:
>On November 18, 2000 at 18:23:25, Daniel Kang wrote:

>>I was just thinking about hacking into the source code of GNU Chess but wanted
>>to judge its strength beforehand. I'm running a 50-game match against crafty
>>17.6 at 5 minutes per game with pondering off (on a single CPU, granted, a bit
>>short) and it has now scored one draw in 38 games, losing all others. I
>>deliberately widened Crafty's opening book usage (width 10) to make it fair for
>>GNU Chess, for which I have no opening book.

>You should let GNU use it's book, what you're doing doesn't make any sense to
>me.

It didn't come installed with a book, and I didn't quite bother enough to find a
reasonable one (it might be a difficult task in itself) for a quick match. I
wasn't intent on having a fair match, just something to judge its strength by.
And I was just a bit surprised.

>>Is it really this bad or am I just somehow using
>>a weak version?

>You don't say what version you're using, do you?  I like the new and the old
>versions of GNUchess personally, but neither one would be capable of winning
>very many games against Crafty, but it would happen occasionally, give it it's
>book and that will give it a better chance, but Crafty is going to kick GNU up
>and down the block anyhow.

Oops, I forgot. It's 5.00 (October 15, 1999). Is there some kind of official
opening book for GNUChess that I'm missing?

>>I didn't expect it to match Crafty, but barely managing one draw
>>in 38 games was somewhat disappointing. Thanks.

>I'm not surprised.

Interesting. The score is now 42-1-1 in Crafty's favor. Do you know if there are
any open-source programs with a comparable license (Crafty's is a bit too
restrictive, in my opinion) worth looking into? Thanks again.

Dan.



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