Author: Robert Hyatt
Date: 18:38:30 06/09/99
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On June 09, 1999 at 16:08:20, Robin Smith wrote: >On June 08, 1999 at 23:17:29, Robert Hyatt wrote: > >>On June 08, 1999 at 23:11:39, Nicholas Cooper wrote: >> >>>I notice that Hiracs 7.32 (as distributed by ChessBase) includes all the 3 and 4 >>>piece endgame tablebases but only the following 5-piece ones: >>>KPP-KP, KRP-KR, KBP-KB, KRB-KR, KRN-KR. >>>Given that, for example, KQP-KQ, KQ-KRP and KQ-KR are of significant importance >>>in practical play, is it possible to download these somewhere and if so, how >>>large are they? I have read that the generating program for the compressed >>>tablebases can require large amounts of RAM which I do not have (my machine is a >>>PII-233MHz with 64MB RAM). >>> >>>Any information would be greatly appreciated. >>> >>>Thank you in advance. >>> >>>Nick Cooper >> >>all of the 3 vs 2 Nalimov files are available at ftp.cis.uab.edu/pub/hyatt/TB/ >> >>all of the files available require about 6 gigs compressed (you can leave them >>compressed for crafty, I don't know about hiarcs) and almost 23 gigs if you >>uncompress them... > >Downloading 6 gigs of data is a daunting prospect. Are these available >elsewhere, perhaps on a CD set or DVD? Also, what are the advantages of the >Nalimov files as compared to the Ken Thompson endings databases? > >Thanks for any insight you can provide. > >Robin Smith Several advantages: 1. complete 5-piece files available (except for kxxx vs k). 2. distance to mate rather than distance to conversion 3. compression technique allows on-the-fly decompression so that these can be used right in the search itself, rather than only at the root of the tree.
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