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Subject: Re: Crafty 17-10 v Fritz 6a Nunn 1 @ 120'/40 + 60'/20 + 30'

Author: Mogens Larsen

Date: 04:01:06 04/27/00

Go up one level in this thread


On April 27, 2000 at 05:10:16, blass uri wrote:

>On April 27, 2000 at 02:16:48, Chessfun wrote:
>
>>
>>All games on one Cel 433.
>>Ponder=off.
>>Tablebases used at 25 and longer.
>>Nunn 1 positions.
>>No opening books are loaded.
>>
>> 1 min game    Fritz 6a 14.5 - 5.5 Crafty 17-10
>> 2 min game    Fritz 6a 14.5 - 5.5 Crafty 17-10
>> 3 min game    Fritz 6a 13.0 - 7.0 Crafty 17-10
>> 5 min game    Fritz 6a 15.5 - 4.5 Crafty 17-10
>>10 min game    Fritz 6a 13.0 - 7.0 Crafty 17-10
>>25 min game    Fritz 6a 13.0 - 7.0 Crafty 17-10
>>60 min game    Fritz 6a 15.5 - 4.5 Crafty 17-10
>>Tourney times  Fritz 6a 14.5 - 5.5 Crafty 17-10
>>
>>Once I figure out how to autoplay from the Nunn 1 opening
>>positions I will play all games with ponder=on.
>>
>>Thanks.
>
>
>Total result 113.5-46.5 indicates 167.5 elo difference between Crafty and
>Fritz6a
>when there is no pondering in the nunn game.
>
>tourney game indicates 180 elo difference and there is no significant
>difference.
>
>The reason may be that nunn1 positions are not good and it is better to use the
>nunn match with positions for practical games(It seemed to me that crafty earns
>more from time based on the ssdf results but maybe I am wrong and Crafty is not
>more than 100 elo weaker than Fritz6a also in blitz).

I think I know by now, why the Nunn position(s) has been used in this test and
the reason is defendable. But in general I don't think it's a good idea to use
them for testing purposes. A computer chess program is a package deal. If you
purposely remove certain elements, ie. opening book or ponder, you get results
that are purely of academic interest. I your're adament of making a direct
engine to engine comparison _everything_ should be removed including EGTB (if
you're real zealous a third party GUI should be used). And no starting position
should be chosen, which includes Nunn. That's my opinion.

Best wishes...
Mogens Chr. Larsen
http://home1.stofanet.dk/Moq/

"If virtue can't be mine alone,
at least my faults can be my own."



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