Author: Fernando Villegas
Date: 19:33:43 05/02/00
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On May 01, 2000 at 20:17:03, Christophe Theron wrote: >On May 01, 2000 at 17:41:21, Bertil Eklund wrote: > >> >>Played on 2 AMD450 K6-2, auto232 no problem at all. 5min blitz. >> >>Nimzo7.32-Genius6.5 35-27 (62) >>Hiarcs7.32-Genius6.5 43,5-30,5 (74) >> >>Not so bad!? >> >>I believe that Hiarcs and Nimzo is about 200 elo stronger than Genius6.5 in >>2h/40. >> >>Bertil > > >I completely agree that this is not too bad, and I also agree that the >difference is bigger at long time controls. > >But as you know, Bertil, there was a time when such an experiment would have >been considered as unfair for its opponents, as Genius was standing well above >the pack in blitz. > >It would be interesting to replay the matches at 2min/game. I'm sure there is a >point where Genius outperforms its opponents. > >In my opinion, and I apologize if this is a bit technical, Genius performs less >well at long time controls because of its Effective Branching Factor. > >That means that Genius is less effective than other programs in pruning out >moves in deep trees. The complexity of its tree grows more than the complexity >of other top chess programs trees. The difference gets bigger and bigger with >increasing depths. I think this could be shown by measuring the times needed to >complete searches of increasing depths, and by plotting the times of Genius and >the times of other chess programs. > >Anyway I like a lot the Genius programs. They have very stable evaluation >functions and their search is still efficient at fast time controls. I still use >Genius 5 as a sparring partner for Tiger from time to time, and I have bought >the Palm version of Genius. > >Great program, a legend I would say. Any computer chess lover should have at >least one version of Genius in his collection. > > > > Christophe Hi Christophe: You are right, but... what a pity! To become a legend is something like a first class funeral. Yeah, when a program is part of a "collection" and not part of your current crop of used stuff, nothing rest but maybe a word or two of farewell and a drop of tears. Hope I am wrong and one of these days Lang will surprise all of us with something to get, not to collect. Fernando
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