Author: Randolph S. Baker
Date: 06:05:00 10/20/97
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On October 17, 1997 at 19:59:55, Moritz Berger wrote: <pruned> >By chosing the "right" or "wrong" configuration, it is very easy to >manipulate results in favour of either Fritz or Hiarcs, I guess the >deviation would be at least +- 100 ELO points. > >My advice therefore is: Never trust results where the poster doesn't >quote at least: >- CPU used >- RAM allocated for hash tables >- book settings (book type, learning enabled?, book source, ...) >- maybe also some figure like "it takes 20 seconds from initial position >with fixed depth 8 ply to play 1.e4" to verify the correct speed of >other components (2nd level cache, RAM settings and type (EDO, SDRAM, >...)). > >It's all slightly technical and complicated, but without sufficient >information you are ill advised to believe *any* results of the >aforementioned kind. > >Moritz > >P.S.: Fritz 4.01 with 64 MB hash tables vs. Hiarcs 6 (Fritz-Engine) with >32 MB hash tables on P166 with Fritz4.fbk and reversed colours from the >same opening: > >result: Fritz got 52% out of 40 games 40/120 with permanent brain >disabled. I've only posted results for Nunn matches, and did specify the machine speed and hash table size for each engine. A Nunn match consists of 10 specific opening positions chosen by GM Nunn and is therefore not subject to any distortions caused by book issues. My 40/120 results in a current Nunn match between Hiarcs 6 and Fritz 5 are consistent with your findings. Randy
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