Author: Robert Hyatt
Date: 08:44:55 10/25/04
Go up one level in this thread
On October 25, 2004 at 11:27:30, Norm Pollock wrote: >On October 25, 2004 at 11:20:32, Eugene Nalimov wrote: > >>On October 25, 2004 at 10:40:33, Norm Pollock wrote: >> >>>On October 25, 2004 at 09:41:07, GuyHaworth wrote: >>> >>>>On October 25, 2004 at 09:02:14, Henry Hongdoyo wrote: >>>> >>>>>Hello Joost, >>>>> >>>>>This is really my last question. >>>>>Fen string : 7k/8/8/6Pp/8/8/8/K7 w - h6 0 1 >>>>>Nalimov give me wrong Distance To Mate because not >>>>>consider Enpassant in h6. (should be 0) >>>>>where can i add this condition ? >>>>>i try to check enp variable; but it didn't work. >>>>> >>>>>what should i do to handle enpassant status in h6 >>>> >>>> >>>>I thought Eugene's EGTs included positions with e.p. options. >>>> >>>>The problem may be in the interface to EN's EGTs. >>>> >>>>For example, http://chess.jaet.org/endings/ does not seem to pick up the e.p. >>>>information from the FEN string. >>>> >>>>g >>> >>>It is my understanding that e.p. is not covered in Nalimov tables, and is >>>therefore a bug. The resulting problem is due to the fact that 5-man tables >>>start being accessed with 12-14 pieces on the board (with my moderate speed >>>machine, more pieces on the board with fast machines). The likelihood of ep with >>>only 5 pieces is practically nil, but ep does occur with 12-14 pieces on the >>>board. >> >>Your understanding is wrong. >> >>Thanks, >>Eugene > >I'm glad to hear that. > >There are 2 things about N-Tables I would like to know, especially because my >moderate speed machine relies very heavily on them when it plays on playchess. >One, is the afore-mentioned questioned about e.p. The other is how to determine >the best size for the tb cache. > >Thanks, >Norm By testing. The egtb cache and the operating system filesystem cache interact. No real way to preduct the outcome without testing.
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