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Subject: Re: 97 DB SSDF rating.

Author: Chris Carson

Date: 13:35:51 07/24/00

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On July 24, 2000 at 16:06:08, Dann Corbit wrote:

>On July 24, 2000 at 15:59:31, Chris Carson wrote:
>
>>The SSDF Rating List 1997-02-05
>>53540 games played by 162 computers
>>                                           Rating   +- Games   Won  Oppo
>>                                           ------  --- -----   ---  ----
>>   1 Rebel 8.0 Pentium 90 MHz                2462   27   736   67%  2336
>>   2 MChess Pro 6.0 Pentium 90 MHz           2435   27   683   62%  2350
>>   3 Hiarcs 5.0 Pentium 90 MHz               2427   67   121   60%  2359
>>   4 Genius 5.0 Pentium 90 MHz               2420   30   558   59%  2352
>>
>>
>>Avg Rating for the top 4 programs = 2436.
>>
>>If DB had a 90% (+36 =4 -0) score against these programs,
>>then the DB rating in comp vs comp games would have been 2824.
>>It's TPR against Kasparov was 2862 (human vs comp).
>>
>>Here is current SSDF list
>>
>>The SSDF Rating List 2000-04-07
>>72059 games played by 206 computers
>>                                      Rating +  -  Games Won oppo
>>1 Fritz 6.0 128MB K6-2 450 MHz        2721   39 -37 368  67% 2594
>>2 Junior 6.0 128MB K6-2 450 MHz       2689   31 -30 565  68% 2557
>>3 Tiger 12.0 128MB K6-2 450 MHz       2671   33 -32 486  64% 2572
>>
>>97 DB would still be the top rated computer at 2824, however,
>>the difference between 97 DB and the current #1 would only be
>>about 100 points or about the difference between the current #1 and
>>
>>8 Crafty 17.07/CB 128MB K6-2 450 MHz  2624   46 -44 251  62% 2541
>>
>>It would be very interesting to see the ratings for multi Fritz
>>or Deep Junior on 8x-700 HW.  :)
>
>Did you ever notice that the SSDF does not even post the results when the number
>of games is that small?  Look at the standard deviations and you will know why.

Ofcourse I agree with you here Dan that 40 games has a high error
of measure.  I am not sure 97 DB could replicate the 90% score against
P90 HW and certainly do not accept it against 450mhz or 8x-700.  :)

Best Regards,
Chris Carson



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