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Subject: Re: Gravy for the brain that supports a 2500+ elo standard for computer GM's

Author: Mogens Larsen

Date: 08:23:35 06/23/01

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On June 23, 2001 at 10:15:53, Robert Hyatt wrote:

>No he isn't.  What do you do with a program that has a huge array with all
>chess moves precomputed and just copied from the array when it is time to
>generate moves for a specific piece on a specific square.  IE Carl Ebeling's
>thesis "all the right moves" was based on hardware that did just this.  What
>about hundreds of evaluation "patterns" that are stored directly in the
>program and matched when an evaluation is done.

Well, I forgot the hardware restrictions. Not on the number of CPUs and speed,
but RAM and storage facilities. If the program you mention can function under
the determined conditions then okay. That is, if the precomputed moves are made
by that program.

>And finally, what about humans that have memorized thousands or tens (or
>hundreds) of thousands of moves and can recite them back perfectly?

The likelyhood of a human player to have replayed the moves sometime on a
chessboard is sufficient to allow human memory ;-). Besides, it's obvious that
humans and programs don't play the exact same game. If it's supposed to hold
interest, a balancing of strengths and weaknesses is important.

>If crafty could simply use every game it has ever played, and I have most
>of them, that would make a formidable book.  But I don't see why that would
>be any more acceptable than looking at what others have played, unless the
>GMs are given the same limitation.

The reason is that Crafty is handed the solution, ie. "Playing e5 now is the
right move". Instead of having to figure it out by itself though play. You do
that to a large extent, because your book is generated by pgn and not handtyped.
However, Crafty is still guided by statistics of the most common move. If Dann
is right about the 300 ELO, which I doubt, then it's a significant advantage. An
advantage without effort. The same as endgame tables. That's nothing to be proud
of IMHO.

Regards,
Mogens



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