Author: James T. Walker
Date: 06:02:06 01/14/00
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On January 13, 2000 at 22:21:17, Dann Corbit wrote: >On January 13, 2000 at 18:55:04, Chessfun wrote: > >>Can anyone tell me if there is a chart for calculating the difference >>in time controls required for two different speed pc's, so as to make >>the result equal. >> >>Ex: Cel 433 60 mins game = P166 120 mins game. >> >>Or is there a formulation that can be used. > > >It is probably a bit specific as to the actual chess engine. > >If you have crafty, you can run the bench command on both machines and just use >the ratio. Hello Dann, I don't think that is a fair way to run a "MHZ handicap" match if pondering is used. And as Dr. Bob says, when pondering is not used, it changes things. With pondering on for example if one machine is 2x faster than the other (A/B) then with A running at Game/5 and B at game/10 to compensate for Mhz speed you have the pondering problem. Assuming a 50% accuracy in pondering then A has a total usable time of 5 + 5 or 10 minutes while B has 10 + 2.5 or 12.5 minutes. A time ratio that is a lot closer than desired! Jim Walker
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