Author: Kurt Utzinger
Date: 13:45:31 12/08/05
Go up one level in this thread
On December 08, 2005 at 15:43:39, James T. Walker wrote:
>On December 08, 2005 at 12:42:27, Kurt Utzinger wrote:
>
>>On December 08, 2005 at 11:56:34, Russell wrote:
>>
>>> Taken from:http://www.utzingerk.com/rating_5moves.htm#5
>>>Shredder 9 Test:
>>>
>>> Fritz 9 50 + 17 = 16 - 17 50.0 %
>>> Fruit 2.2.1 50 + 18 = 14 - 18 50.0 %
>>> Fruit 2.1 30 + 10 = 9 - 11 48.3 %
>>> Toga II 1.1 50 + 14 = 16 - 20 44.0 %
>>> Toga II 1.0 50 + 9 = 16 - 25 34.0 %
>>
>>>Against the two strongest program that there is Shredder 9 scored 50%. While,
>>>against Fruit 2.1, Toga II 1.1, and 1.0 it scored less than 50%. What is
>>>striking is that Shredder performed the worst against Toga II 1.0. I just find
>>>this very strange.Especially, 25 losses against Toga 1.0. This derivatives of
>>>Fruit must have anti-shredder module or something.
>>
>> Frankly spoken this also looks strange to us. And
>> if we find the time (oops: Rybka, Ktulu 7.5, Hiarcs 10
>> are waiting to be tested) we shall repeat the match
>> vs Toga II 1.0 in the near future.
>> Best regards
>> Kurt
>
>I suspect it indicates tuning the engine vs a specific opponent like Shredder
>since it was at the top of the SSDF rating list. The theory being if you can
>beat the best the rest is easy. Of course this does not work perfectly since
>other engines that do not have the same weakness as Shredder may perform better
>vs this engine. I also suspect that Rybka has been tuned this way since it
>performs better against Shredder than all other programs I tested it against.
>Of course I'm only guessing and have no real knowledge. The programmers can
>provide the real answer.
>Jim
Hi Jim
Interesting remarks ... in the running 40'/40
match 5moves, Rybka 1.0 Beta 32-bit is indeed
"shreddering" the very strong Shredder 9 -:)
Regards
Kurt
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