Computer Chess Club Archives




Subject: Re: Estimated # of checkmate positions?

Author: Dann Corbit

Date: 09:02:04 07/07/99

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On July 07, 1999 at 07:55:37, Jeff Anderson wrote:

>Can anyone perhaps estimate the number of legal positions where one king is
>Obviously the number would be much less than the number of legal positions
>(perhaps 1/5000 of all legal positions), but I still imagine it would be a very
>large number.
(1/5000)*10^42 is still pretty huge.

>Could these positions some how, in the very distant future, have some sort of
>practical purpose for computer chess?
They can tell you which branch to quit chasing down.  It's good to know where
they are.  But we'll never find them all.

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