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Subject: Re: A new kind of ply count

Author: William H Rogers

Date: 06:40:00 06/18/99

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On June 17, 1999 at 17:30:00, Dann Corbit wrote:

>We all know that move generators can tell us how many legal moves exist in the
>first <n> ply if written correctly.  Here is a new kind of question about it:
>How many "distinct/unique" positions are there in the first n ply?
>Some answers:
>
>Ply:  Number:
>----  -------
>0     1
>1     20
>2     400
>3     7,602
>4     101,236
>
>I'm doing ply 5 right now.

Just what exactly is a "distinct/unique" position and what are the proposed
moves for both sides leading to your numbers.?
Bill



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