Author: stuart taylor
Date: 18:29:17 01/10/01
Go up one level in this thread
On January 10, 2001 at 17:50:40, Dann Corbit wrote: >On January 10, 2001 at 07:26:35, stuart taylor wrote: > >>The question is all in the heading. I mean with hardware of about 450 mhz. >>upwards (till 1.2 ghz?). >> This question is an ofshoot of Uri's comment that Rebel does better with more >>time. >> If you want to analyse a move for 2 hours, which program would have seen most >>(of what is important and relevant, and consequently play the strongest move) in >>those 2 hours. Or longer? > >Not only do we not know the answer to that question, we'll never even come close >to knowing. > >Calculate the time it would take to play 100 games between 2 engines. Then, >multiply that by 30 high quality engines. With 100 games, you will have an >enormous error bar. So 1000 games will be more like it to find a really >accurate answer. > >At two hours per move, a computer won't play a whole lot better than at 40/2. >That's because of the exponential nature of chess. By 40/2, most engines have >pretty well hit the wall. You will probably get less than two additional plies >by running two hours. If you let it run 24 hours, maybe another ply or two. > >I would suggest asking correspondence chess players. Maybe Robin Smith can tell >us what he thinks about them, since he has faced many computer opponents. Such >an evaluation would be subjective, but a lot better than a wild guess. You can try it a bit, or atleast test with test positions. I often used to play such long games between 2 programes. But Christophe Theron seems to claim very strongly indeed that doubling the speed adds about 70 elo points. So much so that he considers it a huge infringement of justice to give a much stronger program 450mhz to a much weaker programs 600mhz in a tournament. S.Taylor 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