Author: Robert Hyatt
Date: 06:08:46 10/11/99
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On October 11, 1999 at 03:55:14, blass uri wrote: >On October 11, 1999 at 00:01:56, Robert Hyatt wrote: > >>On October 10, 1999 at 21:17:44, Ted Sutton wrote: >> >>>How can one either generate or download from a web site a particular 6-man >>>tablebase: either for the appropriate forces, e.g., B+P vs. R+P, or better yet, >>>for an particular position? >> >> >>No, except for a couple of rare exceptions. The files are _much_ bigger than >>you realize. IE B+P vs R+P will be well over 4 gigs. > >It depends on the original position. >If the pawns are blocked in the original position and you generate tablebases >only for future position than it will be clearly less than 4 gig. >If you have all the 5 piece tablebases than the future position that you do not >know the outcome of them are only future position when you change the place of 4 >pieces(2 kings and rook and bishop). > >Uri we don't have any code to produce 'partial' files, nor do we have any code to probe it. Nor do we have any engine that does a test to see if it is in a special-case ending. I don't see any reasonable use for partial files, except for a specific game. The files take too long to build for a specific game, and the size is still significant, since the very symmetric files we already have are 400mb+ in size. Adding pawns, even blocked ones, removes one level of symmetry that can be used.
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