Author: Mike S.
Date: 17:26:02 11/14/00
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On November 14, 2000 at 19:35:31, Claudio Duarte wrote: >If my chess program plays 40moves in 02 hours, at a 2800 rating, for instance, >how does that rating degrades as the program response time is gradually reduced? >Does somebody knows this relationship? I think this is more a question of estimating than of knowing. I depends on several factors... As far as I can recall, the estimations for the elo gain when the speed is doubled, run from 40 to 80 elo. This would mean i.e., 40 moves in 30 minutes could result in -80...-160 elo, compared with 2 hours. Actually it's complicated and difficult to predict, because it is known that strength relations between several programs change with time controls. Some programs may be more weakened than others. Chess Genius i.e. was known to do much better at short time controls relative to it's performance at tournament time than other programs, while M-Chess used to gain more from longer thinking time. Furthermore it is useful to keep in mind regarding this matter, that many moves in a game would be the same, disregarding what the time control is (of course speaking of settings within "normal" boundaries). The strength difference emerges only at points where the program changes it's move decision during the thinking process. Regards, M.Scheidl
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