Author: Mridul Muralidharan
Date: 10:49:44 02/18/06
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On February 17, 2006 at 19:26:44, Uri Blass wrote: >On February 17, 2006 at 16:42:01, Mridul Muralidharan wrote: > >>On February 17, 2006 at 14:47:01, Joseph Ciarrochi wrote: >> >>>right now there is over 100 point difference between shredder 9 and rybka 13b >>>(cegt 40/40). The difference might increase another 10 to 50 points with endgame >>>knowledge >>> >>>Historically, what is the largest increase a chess engine has made? I think >>>fruit gained about 100 points at one point? >> >>I think it was mentioned that, among strong programs , HIARCS has been >>consistently gaining 100 elo or so between versions. Same with fruit. >>Among amateur programs, it is entirely different story - there have been even >>350 elo or more improvements :-) >> >>Mridul > >This is not correct for hiarcs. > >Hiarcs10 is more than 100 elo better than hiarcs9 but it was not the case in the >past. > >This is also misleading to say that hiarcs gain 100 elo between versions because >no new hiarcs was released for a long time and the time between hiarcs9 and >hiarcs10 is certainly more than one year. > >Fruit usually gain 100 elo in clearly less time than one year. > >Uri I dont remember mentioning the time gap between the releases :-) Even if it took 10 years between releases : it is factual when you say - between major versions , there was a 100 elo improvement. Also , I think I was purposely fuzzy about the actual elo improvement. I never did any measurement myself ! I was just reporting what I was informed of long ago. From what I am to gather (and also from the hiarcs website) , it has been quite consistently improving in the whereabouts of 100 elo or so for most of the past releases. Ofcourse , I could be wrong on this count. Just as a note : tougher to improve a professional program (so always having a high elo anyway as compared to competition) with a known history of gameplay style consistently. I know of quite a lot of professionals who prefer HIARCS since they do not consider it a bean counter with a computerish style of play. Personally , I usually ask my friends to run games of my engine against HIARCS mostly - tactical mistakes can be corrected more easily than positional ones. Not to say fruits achievements are small - it is quite impressive , but I want to see how long it will continue at this level between versions :-) Mridul
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