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Subject: Re: Mathematical Proof of Tablebase Accuracy

Author: Nathan Thom

Date: 18:47:02 02/02/03

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On February 02, 2003 at 21:41:03, Mike Hood wrote:

>To quote the words of a cynic during the Chessbase commentary on Kasparov-DJ
>Game 4: "I doubt whether more than 1% of all positions in the tablebases have
>been checked independently. And a mathematical proof of their correctness is not
>easy at all."
>
>Let's forget the cynicism for a moment. I personally have no doubt in the
>accuracy of the tablebases, based on my empirical observations of a few
>positions extrapolated to the millions of other positions. My question is: Is a
>mathematical proof of tablebase accuracy at all possible?

I thought all the endgame positions were guaranteed to be accurate because some
poor computer chugged away at them for days and perfectly solved the position to
as many plys as it took.



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