Computer Chess Club Archives




Subject: Re: chess and neural networks

Author: Anthony Cozzie

Date: 12:55:07 07/01/03

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On July 01, 2003 at 15:42:42, Albert Bertilsson wrote:

>>Yes, but things are different with chess. In backgammon, you don't need to do
>>deep searches. Backgammon is a randomized game, chess is not. There have been
>>attempts, but not that succesful, i have looked at KnightCap, which uses
>>standard minimax with a ANN to evaluate the quiet positions.It has a rating of
>>about 2200 at FICS... pretty good, but no way near the top. I guess a program
>>with minimax only counting material would have a rating near that. Like they
>>say, chess is 99% Tactics. Nothing beats deeper searching.
>2200 on FICS with MiniMax counting material only?
>That is crazy!
>One of us is wrong, and hope it isn't me because I've spent many hours on my
>engine and it still is now way near 2200 in anything other than Lightning! If
>you're right I'm probably the worst chess programmer ever, or have missunderstod
>your message completely.
>/Regards Albert

Your engine, being new, still has a lot of bugs.  I'm not trying to insult you;
it took me a full year to get my transposition table right.   At least, I think
its right. Maybe.  Anyway, the point is that it takes quite a while to get a
good framework. I suspect on ICC a program with PST evaluation only could get
2200 blitz. (with material evaluation only it would play the opening horribly,
e.g. Nc3-b1-c3-b1-c3 oh darn I lose my queen sort of stuff)


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