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Subject: Re: Comments of latest SSDF list

Author: Ulrich Tuerke

Date: 04:06:49 05/25/02

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On May 25, 2002 at 03:55:58, Sandro Necchi wrote:

>THE SSDF RATING LIST 2002-05-22   86121 games played by  240 computers
>                                           Rating   +     -  Games   Won  Oppo
>                                           ------  ---   --- -----   ---  ----
>   1 Fritz 7.0 256MB Athlon 1200 MHz         2730   33   -31   494   64%  2626
>   2 Chess Tiger 14.0 CB 256MB Athlon 1200   2722   33   -32   477   63%  2626
>   3 Gambit Tiger 2.0  256MB Athlon 1200     2720   34   -33   441   62%  2635
>   4 Deep Fritz 256MB Athlon 1200 MHz        2714   33   -32   482   63%  2623
>   5 Shredder 6.0  256MB Athlon 1200 MHz     2713   35   -34   432   64%  2611
>   6 Junior 7.0  256MB  Athlon 1200 MHz      2693   31   -31   511   57%  2641
>
>Shredder 6.32 (CB version) is 27 points behind Fritz 7
>
>   7 Rebel Century 4.0 256MB Athlon 1200 MHz 2684   34   -32   470   64%  2585
>   8 Shredder 5.32  256MB Athlon 1200 MHz    2670   31   -30   536   56%  2624
>   9 Gandalf 4.32h  256MB Athlon 1200 MHz    2653   34   -33   430   54%  2625
>  10 Deep Fritz  128MB K6-2 450 MHz          2652   23   -23   945   61%  2570
>  11 Gandalf 5.1  256MB Athlon 1200 MHz      2646   29   -28   595   57%  2594
>  12 Gandalf 5.0  256MB Athlon 1200 MHz      2642   49   -50   202   46%  2673
>  13 Gambit Tiger 2.0  128MB K6-2 450 MHz    2640   30   -29   592   66%  2521
>  14 Fritz 7.0  128MB K6-2 450 MHz           2631   45   -44   250   56%  2592
>  14 Junior 7.0  128MB K6-2 450 MHz          2631   27   -26   739   67%  2507
>  16 Chess Tiger 14.0 CB 128MB K6-2 450 MHz  2630   28   -27   652   62%  2541
>  16 Shredder 6.0 UCI 128MB K6-2 450 MHz     2630   65   -62   124   57%  2578
>  18 Fritz 6.0  128MB K6-2 450 MHz           2623   23   -22  1014   63%  2529
>
>Shredder 6.0 (UCI version) is 1 point behind Fritz 7
>
> SSDF comment
>
>We have played 124 games with the UCI-version of
>Shredder 6.0 K6-2 450 MHz, using the opening book of
>Sandro Necchi. So far the rating is 2630. With so few
>games it's difficult to draw any conclusions concerning
>which opening book Shredder 6.0 might benefit most from.
>
>My comment:
>
>What is 26 points difference?
>
>Apparently NOTHING:-))
>
>No other comments are needed.
>
>Sandro Necchi

Accounting for the statistical uncertainties, your conclusions are not on a safe
base. But this is also quite generally true for the first rankings in this list.

I personally wouldn't care too much if engine A is ahead of engine B by 18
points when the statistical uncertatinty is order of 30 points or above.

Uli



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