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Subject: Re: A new kind of ply count

Author: Dann Corbit

Date: 12:16:43 06/22/99

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On June 19, 1999 at 22:30:55, Richard Bean wrote:

>http://www.research.att.com/~njas/sequences/
>search for 1,20,400
>
>the answer for ply 5 is (4865609 ->) 815677 (this is without
>ep, castling, or transpositions).  (I agree with 1,20,400,5362...)
>the answer for the number of *move sequences* at ply 9
>is <88867026005 (one of the other sequences there, calculated
>without legality checking).
>
>maybe I will do it with Dann's rules, although it will require
>it bit of an EPD mutant...
I would like to see an EPD format like BOOKUP uses when writing to permanent
storage.  That is, any e.p. tag that has no possible effect gets removed.  That
would simplify calculations enormously.



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