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Subject: Re: Question re # files for 5 piece CB EGTBs on DVDs

Author: Christopher Morgan

Date: 09:05:57 06/29/04

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On June 28, 2004 at 21:37:13, Robert Hyatt wrote:

>On June 28, 2004 at 15:28:39, Christopher Morgan wrote:
>
>>Question re # files for 5 piece CB EGTBs on DVDs
>>
>>
>>I installed the 5 piece EGTB.s from CB’s EGTB DVDs, and combined all files into
>>one folder.  I wound up with 230 files, 5.83GB (6.263 billion bytes).  I recall
>>discussion here that all EGTBs through 5 pieces was about 7.2GB.  I don’t
>>remember the number of files.
>>
>>Do I have all the files?  Perhaps I screwed up in installing, or CB has fewer
>>files for some reason, or different compression??
>>
>>Thanks!
>>
>>Chris Morgan
>
>You definitely don't have them all...
>
>7.410471 gigabytes
>
>290 total files.


Bob,

Thanks.  On your site, ftp://ftp.cis.uab.edu/pub/hyatt/TB/, excluding six piece
tables, would that be all folders except 42, 42p, and tbs?

Do you agree with Norm’s comment, below, that a number of the files are not
really needed, such as KQQQK, any 4 piece v 1 piece, and ones with KQQK, and
that having too many EGTBs can slow things down?  Seems reasonable to me.

CB provided no documentation re omitting any of the required EGTBs, but
obviously they have done so.  My experience with getting an answer from CB to a
question emailed to them has been dismal.

I have confirmed that there are 230 up to five piece EGTB files on their 5 DVD
“Endgame Turbo 2 Nalimov Tablebases.”  They also have some six piece tables as
well.

Chris



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