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Subject: Re: SSDF Rating List 2004-12-31

Author: Peter Berger

Date: 09:21:50 01/01/05

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On December 31, 2004 at 07:51:37, Thoralf Karlsson wrote:

>     THE SSDF RATING LIST 2004-12-31    100049 games played by  267 computers
>                                           Rating   +     -  Games   Won  Oppo
>                                           ------  ---   --- -----   ---  ----
>   1 Shredder 8.0 CB  256MB Athlon 1200 MHz  2805   23   -22  1075   71%  2645
>   2 Shredder 7.04 UCI 256MB Athlon 1200 MHz 2804   23   -22  1041   70%  2653
>   3 Deep Fritz 8.0  256MB Athlon 1200 MHz   2791   25   -24   896   72%  2628

Two thoughts:

a.) I was surprised how close Shredder and Fritz actually are - in fact too
close to call.

THE SSDF RATING LIST 2004-04-22   97872 games played by  264 computers
                                           Rating   +     -  Games   Won  Oppo
                                           ------  ---   --- -----   ---  ----
   1 Shredder 8.0 CB  256MB Athlon 1200 MHz  2818   34   -32   481   70%  2673
   2 Shredder 7.04 UCI 256MB Athlon 1200 MHz 2809   24   -23   967   71%  2648
   3 Deep Fritz 8.0  256MB Athlon 1200 MHz   2790   26   -25   855   72%  2625


b.) The major change to the previous list is that Shredder 8 had to play some
lower-rated opponents which hurt its performance. It's interesting to compair
the average rating of the opponents anyway. There is a slight tendency for a
higher average rating of the opponents to result in a higher final rating for an
entry. Maybe there is some rating incest going one here? Maybe choice of
opponents has a too strong influence.


Just some thoughts - no criticism intended.

Peter




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