Author: Uri Blass
Date: 13:06:23 11/15/04
Go up one level in this thread
On November 15, 2004 at 15:29:05, Robert Hyatt wrote: >On November 15, 2004 at 14:56:10, Anthony Cozzie wrote: > >>On November 15, 2004 at 14:43:59, Alvaro Jose Povoa Cardoso wrote: >> >>>On November 15, 2004 at 12:13:40, David Dahlem wrote: >>> >>>>On November 15, 2004 at 11:46:13, Alvaro Jose Povoa Cardoso wrote: >>>> >>>>>I was wondering if it is correct to assign a zero score to a position that is a >>>>>draw by 3 fold repetition. >>>> >>>>That's the way i do it. Otherwise, how else could any engine decide, based on >>>>the evaluation score, whether to go for repetition or to avoid repetition? >>>> >>>>Regards >>>>Dave >>> >>> >>>What I find strange is why crafty doesn't do it. >>>Comments Dr. Robert Hyatt? >>> >>>Alvaro >>> >>> >>> >>>> >>>>>What I mean is that if for example white is ahead in material and black is >>>>>fighting desperately for a draw, black will try to reach that drawn position as >>>>>quick as possible while white will try to postpone that position as much as it >>>>>can. >>>>>It's a sort of distance to mate but in this case it is a distance to draw by >>>>>repetition. >>>>>Does this make any sense to you? >>>>>I would appreciate your comments. >>>>> >>>>>Brest regards, >>>>>Alvaro Cardoso >> >>Crafty does it (0.01 -> black forces draw in position good for white, -0.01 >>white forces draw in position good for black). I really should implement this >>in Zappa. >> >>anthony > >I believe that was Uri's idea, if I recall... Yes My idea was about tablebases positions. I guess that you generalized it to other draws. Uri
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