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Subject: Re: what are the most important Six man tablebases?

Author: Robert Hyatt

Date: 15:38:48 09/06/02

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On September 06, 2002 at 16:27:22, Dieter Buerssner wrote:

>On September 06, 2002 at 16:14:19, Robert Hyatt wrote:
>
>>>What is the estimated size [of kppkpp]?
>
>>at least 1000 gigabytes (a terabyte)
>
>How do you estimate this?
>
>My simple estimation (ignoring the ep problem, but it should not make a bigger
>factor) would be:
>
>3612 * 48 *47 / 2 * 46 * 45 / 2
>
>which would make 4 Gb positions, compressed obviously less. Even 64^6 (taking no
>symmetry into account) is "only" 64 gigabytes.
>
>Regards,
>Dieter


The threes/fours/fives are 7.5 gigs already.  But even more importantly,
the 6's are going to blow a byte for scores...  So they are going to be
twice the size to boot.

I already have some compressed 6 piece tables that are > 2.0 gigabytes.  We
have almost 100 gigs with no pawns done yet, and not all of 3 vs 3 are
done yet...  much less 4 vs 2, 1 vs 5 and then those pawns...

IMHO a terabyte is a lower bound...  not upper.



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