Author: Robert Hyatt
Date: 20:57:59 04/10/00
Go up one level in this thread
On April 10, 2000 at 23:04:07, Eugene Nalimov wrote: >On April 10, 2000 at 20:18:36, Robert Hyatt wrote: > >>On April 10, 2000 at 17:22:09, Arndra L. Sharp wrote: >> >>>On April 10, 2000 at 15:52:18, Robert Hyatt wrote: >>> >>>>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). >>> >>>Does anyone sell all the TBs on CDs? Surely everyone who has them is not >>>generating them with the program that comes with the 32-bit Chessbase programs. >>>That would take several weeks and a memory ladened machine; I can't imagine >>>downloading 8 gig either. >> >> >>Not that I know of. CDs are a poor way to distribute these things as the 8 >>gig set would take almost 15 CDs... and the 32 gigs we have including 6 piece >>endings (so far) would take 50 CDs or so, which is beyond reason... > >Bob, speaking about gigabytes: my machines are idle, as I don't have enough disk >space to store new TBs... > >Eugene :) I am working on it, never fear... :) Bob
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