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Subject: Re: Maximum Number of Legal Moves

Author: Roman Hartmann

Date: 07:43:13 05/09/05

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On May 09, 2005 at 10:04:41, James Swafford wrote:

>I am glad you asked this question.  I've always used 250 it's
>worked out ok, but I've never proven to myself that 250 is a safe
>Is anybody using a hard limit > 250?

#define MAXMOVES 256

That's what I have in one of my header files and I won't change that unless
someone presents a legal position with more than 218 possible moves.


>On May 08, 2005 at 23:44:31, Andrew Shapira wrote:
>>What's best known (the smallest) upper bound on the number of legal moves, taken
>>over all chess positions?  An obvious bound is 9*7*4+2*14+2*14+2*8+8 = 332.
>>This comes from 9 queens, 2 rooks, 2 bishops, 2 knights, and 1 king.  Is a
>>better bound known?

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