Author: Uri Blass
Date: 02:07:28 06/28/05
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On June 28, 2005 at 02:42:21, Sune Fischer wrote: >On June 28, 2005 at 02:04:27, Reinhard Scharnagl wrote: > >>On June 27, 2005 at 21:58:51, Jorge Pichard wrote: >> >>>Just because a program is strong at standard chess doesn't mean that it will be >>>strong at Chess960. For instance there is a noticeable difference between >>>standard Pharaon 3.3 and Standard Freenze, whereas according to my test, >>>FRC-Freenze is almost equal in strength to Chess960 Pharaon 3.3. > >I find that hard to believe, usually when things look too good to be true it's >because you just haven't played enough games yet... ;) > >>This is not at all surprising to me. It reflects the unability of most engines >>to UNDERSTAND positional implications during opening. This will be covered in >>traditional chess by a) opening libraries, b) optimized weights in piece type >>specific coordinate related bonus/malus tables. >> >>Smirf is avoiding the use of such tables to force the programmer (in that case: >>me) to improve the program to a better positional understanding by AVOIDING >>such intelligence murdering piece-coordinate 'optimized' tables, and of course >>by switching from huge looking-up tables corrupted chess to Chess960's freedom. > >You tell 'em Reinhard! :) > >Design philosophy or not, the question is what is it worth in real play Elo. >I think unfortunately not much. I agree. > >Of course if the engine is used to having a good book and doesn't have any >development terms on its own, then one could possibly be in for a grim awakening >in FRC. I think that search dominates here and special developments terms for the opening are not very important(I will be surprised if special knowledge for the opening gives more than 100 elo in FRC and I expect it even to be not more than 50 elo). Usually a program that plays the middle game well will also be good in Chess960 because even if it gets inferior positions it can often get out of them and win later. Uri
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