Author: Robert Hyatt
Date: 12:52:18 04/10/00
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On April 10, 2000 at 11:20:51, Arndra L. Sharp wrote: >First of all let me state that I am not a programmer, just someone who enjoys >computer chess immensely. I have seen a lot of posts that put down the Endgame >Turbo disks because they do not contain all of the TBs, in particular those TBs >after the pawn queens. I think it a good idea to reduce the hard drive space >required for TBs by pruning those TBs that any good chess program can figure out >if its brain was not disabled. It seems the real problem is that those programs >that use TBs turn off the permanent brain once the program is in a TB position >and then the program gets confused if after a pawn queens and the now simple win >(for good chess programs) is not in the TB folder. This is something that the >programmers probably did not anticipate originally everyone has seen games where >this impacts the result. Now that this has been identified, why can't the >programmers tell their programs to follow the TB tree to pawn promotion and >reset the permanent brain at that point. Many people have reported that the >programs that blunder with missing 5 man TBs play the same ending fine with 3 >and 4 man TBs. It just seems that the programs don't know how to think again >after they start down a tree and the tree ends before checkmate. A bug fix by >the programmers would be more preferable than taking up another 5 gigs of hard >drive space. > >Arndra Crafty does this correctly. But with the price of disk drives, holding all the 3-4-5 piece files is now trivial... 40 gigs for 250 bucks is typical now. You only need 8 gigs for _all_ the 3-4-5 piece files (compressed).
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