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Subject: Re: chess and neural networks

Author: Magoo

Date: 12:14:04 07/01/03

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On July 01, 2003 at 14:27:57, Ralph Stoesser wrote:

>On July 01, 2003 at 14:21:12, Tom Kerrigan wrote:
>>On July 01, 2003 at 13:32:19, Ralph Stoesser wrote:
>>>Hello *,
>>>Why no top engine uses neural networks for positional evaluation in non-tactical
>>>situations? Are there interesting publications about neural networks and chess
>>Neural networks are for analyzing things that are
>>"fuzzy"--voice/image/handwriting recognition, etc. Chess is a very exacting
>>game. (It makes a big difference if your rook is on d1 vs. e1.) I doubt neural
>>networks will ever be useful for chess.
>I know that the worlds best backgammon program (snowie) use neural networks with
>great success.

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.

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