Author: Len Eisner
Date: 19:53:41 12/10/99
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On December 10, 1999 at 22:26:43, Chuck wrote: >On December 10, 1999 at 20:16:13, Bertil Eklund wrote: > >>On December 10, 1999 at 20:01:28, Chuck wrote: >> >[snip] > >>> >>>I think it is very easy to prove that Robert is right here. It is very >>>noticeable. I once played out a 40/2 match between a Mach IV and a Mephisto >>>Polgar, the Mach IV one 10-2. The two machines are very close in strength, >>>probably within 100-150 points. But playing many games and watching these two >>>computers evaluate positions, it was evident that the speed of the Mach IV >>>(compared to the Polgars 5 Mhz) gave it a big tactical advantage. Head-to-head >>>this seems to be magnified. I played an old MChess against the Mach IV and it >>>won 11-1. Wow, what results. The point is, when a progam plays another which is >>>on significantly slower hardware, the faster program is going to win big and >>>it's rating will be inflated. Two years later, when it becomes the one with slow >>>hardware, it will be the one getting pounded, and it's rating will go down. I >>>think at one time the Mach IV was on the SSDF list at around 2200, but late in >>>it's life it dropped to below 2100. >>> >>>Chuck >> >>Hi! >> >>As checked houndreds of times this is completely wrong. >> >>Play two-houndred games and the level should probably be accurate. >> >>Bertil SSDF > >Then explain to me how the Mach IV had a SSDF rating of 2282 in January 1993 but >now has a SSDF rating of 2074!?! > >Chuck Yes, that is the question, and it applies to the other old programs too. If computers are anything, they are consistant, so the Mach IV would play exactly the same today as it did in 1993, yet its rating is over 200 points lower. Len
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