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Subject: Re: SSDF Rating Irregularities

Author: Chuck

Date: 19:26:43 12/10/99

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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



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