Author: Kurt Utzinger
Date: 07:22:34 12/13/05
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On December 13, 2005 at 07:05:49, Joachim Rang wrote: >On December 13, 2005 at 05:43:45, Kurt Utzinger wrote: > >>On December 13, 2005 at 05:04:08, Joachim Rang wrote: >> >>>On December 13, 2005 at 03:58:50, Kurt Utzinger wrote: >>> >>>>On December 13, 2005 at 02:16:50, Chrilly Donninger wrote: >>>> >>>>[...] >>>>>The experiment shows also, that it is fairly easy to tune against one programm. >>>>>The problem is to find a solution which works against all. >>>>> >>>>>Chrilly >>>> >>>> Hi Chrilly >>>> This conforms exactly with my own experience when >>>> trying different CM-personalities: the best CM-setting >>>> vs Shredder had no chance vs Fritz and so on. >>>> Kind regards >>>> Kurt >>> >>> >>>Hi Kurt, >>> >>>I'm surprised by this. I had the impression tuning against a specific opponent >>>yields only little. Do you have any data on your experience for this? >>> >>>Joachim >>> >>>Joachim >> >> Hi Joachim >> We have tried hundreds of different CM9-settings >> without tuning them vs a specific engine. But we >> noticed that setting X played excellent vs for >> example Shredder but lost badly vs Chess Tiger >> and/or other combinations. Such things always >> happened with settings where we tried to increase/decrease >> some parameters to the extreme. All such settings did never >> well and were unsuitable as a good overall setting. >> Regards >> Kurt > > >Did you have such "anomalities" with matches for more than 50 games? I mean if >you play 10 matches of 50 games chances are high that one match will have a >"curious" result, such as your result of Fritz 9 against Fruit-Toga 1.0. > >Joachim Hi Joachim The problem was not that CM X got for example a score of 85 % vs Shredder but that the same setting did only got an overall score of 30-35 % vs all other engines. If a CM9-setting achieved an overall score between 48-55 % with the exception of 70 % (positive) or 30 % (negative) vs a specific engine, this was OK for us. There may always be a dreaded/easy opponent for a chess program. Best regards Kurt
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