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Subject: Re: SSDF ratings vs Human performance rating (the data).

Author: James Robertson

Date: 09:55:16 04/12/00

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On April 12, 2000 at 12:12:01, Chris Carson wrote:

>					FIDE
>S/W			Mp    	MHZ 	TPR	SSDF
>Hiarcs 6		PII	350	2611	2624	450 MHZ for SSDF
>CM 6K			PII	450	2554	2574	200 MHZ for SSDF
>Fritz 6		PIII	500	2489	2721	450 MHZ for SSDF

From your post, these are the only results on modern hardware. How can you
explain a 2489 TPR for Fritz, when, on slower hardware, it is rated **232**
points higher by the SSDF??? How about CM6k, rated 20 points higher on less than
one half the hardware? The only result that looks reasonable is Hiarcs', but how
many games has Hiarcs 6 played against humans at 40/2? Even 10 leaves a massive
potential error.

Obviously, something is completely out of whack. At least for modern programs on
modern hardware, the list is a terrible predictor of strength against humans.

James

BTW, what is the difference between the SSDF results for Junior and the actual
results of Deep Junior in the Israeli League?


>Based on the above, the micro's had 14 performances above
>thier SSDF ratings against FIDE opponents and 15 performances
>below.  The SSDF list is very valid and reliable.
>
>Over 500 games for micro's against FIDE rated humans at 40/2.
>
>Best Regards,
>Chris Carson



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