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Subject: Re: Compression idea (8:1 for pawnless endgame tablebase files)

Author: Robert Hyatt

Date: 20:31:18 02/09/01

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On February 09, 2001 at 23:23:36, Dann Corbit wrote:

>Les Fernandez had an interesting compression idea that might be useful for
>database files.  There is some VB code and an explanation here for an idea to
>reduce the size of endgame tablebase files:
>
>ftp://cap.connx.com/pub/VbRotations/
>
>It would be interesting to get some feedback on this idea.  Will it provide the
>desired compression?  If it could pack the data by a factor of 8, it would be
>helpful for I/O speed and other benefits of that nature.
>
>Perhaps it is possible to get even greater compression levels.


This is already done in Eugene's format.  Plus several other optimizations
to further squeeze the data.  And then finally it is compressed using normal
data compression on top of everything else...



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