Author: leonid
Date: 12:10:16 12/08/99
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On December 08, 1999 at 13:25:15, Vincent Diepeveen wrote: >On December 08, 1999 at 10:45:15, leonid wrote: > >>On December 08, 1999 at 10:17:47, Robert Hyatt wrote: >> >>>On December 08, 1999 at 08:32:48, leonid wrote: >>> >>>>Hello! >>>> >>>>How many plies chess game should have before hash tables could be of some use in >>>>the chess game? >>>> >>>>Thanks, >>>>Leonid. >>> >>> >>>Three + captures should do it: >>> >>>Nh3 xxx Ng5 >>>Nf3 xxx Ng5 >>> >>>and you avoid the rest of the 2nd search... >> >>Thanks! >> >>I tryed up to 5 plys and had no improvement. Something wrong with my logic. Will >>go back and try 8 plies deep. > >there are always bugs in hashings... ...test it well, create at least >a functoin that calculates the hashkey in the current position, and >compare that with the incremental value. I bet there are some mistakes >there! > >After that check go figure out how you store it. I've had nasty bugs >when compressing a lot of info into a few bits. I see that what you said have a good sense. I already killed one bug and rewrote my hash logic for plies from 7 to 5. Still no speeding. Probably some bug more. It sound so strange, since this part of logic apparently is so simple. Will later go down to the minimax and see the difference. Alpha-beta can obscure efficency of hashing. Leonid. > >>Leonid.
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