Author: Johan de Koning
Date: 00:00:10 08/13/03
Go up one level in this thread
On August 10, 2003 at 13:57:00, Amir Ban wrote: >On August 09, 2003 at 19:11:16, Harald Faber wrote: > >>On August 09, 2003 at 05:55:43, Tony Hedlund wrote: >> >>>How can J8 allow game 14 to end as a draw? >> >> >>This is no serious question, isn't it? >>It has been posted and mentioned approx. 1,000,000 times. It is the problem of >>incomplete tablebases. AFAIK you/SSDF uses the "Fritz Endgame Turbo". Based on >>the Chessbase marketing it consists of 4 CD-roms with "the most important >>endgame tablebases". Based on what you saw in this game, what many many others - >>include me - have seen in similar positions, it is crap. >>Let me ask you a question. If your answer is yes, do I win a price? >>Here is the US-$1,000,000 question: >>Are you missing at least one of these files in your tablebase-directory? >> >>kqbkp.nbb.emd >>kqbkp.nbw.emd >>kqbkn.nbb.emd >>kqbkn.nbw.emd >>kqbkb.nbb.emd >>kqbkb.nbw.emd >>kqbkr.nbb.emd >>kqbkr.nbw.emd >>kqbkq.nbb.emd >>kqbkq.nbw.emd >> >> >>If you had them all(!), Junior 8 would have mated. >> >>Don't you think it is time to consider >>a) adding the missing 5-man files or >>b) kick the existing 5-man? >> >> > >I don't understand this explanation. Are you able to recreate this by omitting >some 5-man files ? > >The log doesn't show what J8 was thinking. Apparently it thought it was mating , >because it played all moves in 0 seconds. Yet another good reason to clear out the TT at the start of every search! :-) >I remember a long time ago that engines had 50-move rule problems due to TB >handling, but not problems of walking into repetition. > >Amir
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