Author: Robert Hyatt
Date: 19:52:12 07/15/99
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On July 15, 1999 at 21:04:47, Nicholas Cooper wrote: >Greetings all, > >I am considering purchasing Hiracs 7.32, an important factor being the use of >tablebases. However, I have noticed that all of the 5-man tablebases require >about 10 GB of disk space to store (ouch!). Given that I only have 2 GB of hard >drive space available for tablebases, I was thinking of how one might reduce the >number of 5-man tablebases included *without* drastically affecting the strength >of endgame play. What do you think of omitting some of the promotion tablebases: >for instance, after promoting the pawn in a KRP-KR endgame, is it really that >helpful to have the KRQ-KR endgame tablebase? It's true that this may change the >number of moves it might take to make but surely not the result. Granted this >might muck up the number of moves to mate prediction when promotion occurs but >from a practical point of view, this doesn't matter as long as the result isn't >changed. > >What does anyone think?? Any other suggestions for how to chose a good 2 GB >subset of the 10 GB 5-man tablebases are welcome. > >Thanks in advance for any help you can offer. > >Regards, > >Nick Cooper Actually they are less than 6 gigs total. But that is more than you have,still. So here is one idea: all 3-4 piece files then starting in order: kr*kr (this is krp kr + all promotions for the p) kq*kq kb*kb kn*kb kb*kn kn*kn that should suck up your 2 gigs...
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