Author: Uri Blass
Date: 06:18:21 12/14/03
Go up one level in this thread
On December 14, 2003 at 09:01:26, Omid David Tabibi wrote: >On December 14, 2003 at 08:34:31, Uri Blass wrote: > >>On December 14, 2003 at 08:10:43, Omid David Tabibi wrote: >> >>>On December 14, 2003 at 07:58:41, Uri Blass wrote: >>> >>>>On December 14, 2003 at 06:00:10, Tord Romstad wrote: >>>> >>>>>On December 13, 2003 at 19:18:58, Omid David Tabibi wrote: >>>>> >>>>>>On December 13, 2003 at 04:26:16, Tord Romstad wrote: >>>>>> >>>>>>>The easiest solution to this is to spend another afternoon on adding opening >>>>>>>book >>>>>>>code to the engine. >>>>>> >>>>>>How exactly, if you don't know anything about the format (ctg) you are going to >>>>>>code for?! >>>>> >>>>>Why is it so important to use exactly the same book? Just do like almost >>>>>everybody >>>>>else, and build a book from a PGN database. >>>>> >>>>>Tord >>>> >>>>I do not know how almost everybody does it. >>>>Did you look first in free source code like book.c of crafty to understand how >>>>other do it? >>> >>>Most programmers don't get into the hassle of writing their own book format. >>>Instead, the time is better spent improving the automatically generated book in >>>one of the common formats. >> >>I believe that most of the opponent of movei in Leo's tournament use their own >>book format but I may be wrong. > >I was referring to most programmers in WCCC. At least half the participants were >using CTG or BOK formats. > >Leo's tournament is in WinBoard, which does not have any book support. I know but the number of programs that participate in Leo's tournament is clearly bigger. I simply get testing time for my program thanks to the fact that I support winboard so I have more motivation to care about having book under winboard and not to care about having book under Fritz > > > >> >>I believe that using an existing format is wrong because it means that I have no >>freedom to change the book dependent on the time control. >> >>I believe that it is better to have a bigger book for blitz when the logic is >>that at longer time control I expect the engine to find more often by itself >>better moves when in blitz it may be better to trust some known alternative that >>was not played a lot. > >You can create several books, or set the interface to play a larger subset of >opening moves. I understand but I do not like to be dependent on interface and I have less freedom by doing it. I also think about not playing automatically book moves in 0 seconds(except moves that were checked manually) in order to avoid stupid blunders that I have bad luck to have in the pgn file and to use 1/10 of the normal time to calculate to see if I can trust the book. Uri
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