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Subject: Re: A question about a specific 8 man tablebase (correction)

Author: Robert Hyatt

Date: 07:19:46 11/13/01

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On November 13, 2001 at 05:16:10, Tony Werten wrote:

>On November 13, 2001 at 03:22:13, derrick gatewood wrote:
>
>>How much time and space would it take to compile the tablebase for an endgame
>>where each side had 3 pawns?  would this be possible or it simple to large?  It
>>seems like it would be so large since pawns dont have much movement.  Has this
>>already been performed so I dont have to waste my time?  The "Little Game" as it
>>is called on chess.net is my nemesis and I really want to figure out this game
>>and that tablebase would be all I would need to study it in depth.  Thank you..
>>as far as time goes,  my system is 1.575 ghz athlon,  with 512 megs of PC2100
>>ram
>
>Simple math suggests that the table should have 443,247,013,440 entries
>(excluding ep-rights). With 1 byte per position, your memory seems to be less
>than a factor 1000 off.
>
>Tony


It is worse than that.  The file will have roughly 2^48 _entries_ 8 pieces
with 64 squares each. that is 262 terrabytes.  Actually 262 trillion entries
of probably at least two bytes each, so 512 terrabytes roughly.

Pretty big.  :)




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