Author: Uri Blass
Date: 06:55:56 08/30/01
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On August 30, 2001 at 09:01:33, Alberto Rezza wrote: >On August 30, 2001 at 03:03:39, Jouni Uski wrote: > >>I looked at SSDF list and found one answer: Genius 5 is rated exactly as Mchess >>8, which is 2477 on AMD 450. Genius 3 is 21 points weaker e.g. about 2456. This >>is quite exactly 200 points under DeepFritz and Tiger! > >200 points? interesting! > >May i guess and suggest: 100 pts for the opening book, 80 for improvements in >the search, 20 for better evaluation/knowledge? Does it sound reasonable? No I think that you overestimate the book. I guess that only 20% of the improvent is because of book when 80% is for evaluation function and better search rules. I ignore learning but I believe that even without learning the difference between Genius3 and Deep Fritz at slow time control is at least 200 elo (I believe that the difference becomes bigger when the time control is slower). Note that it is hard to say how much for better search rules because better evaluation may be connected to being better in tactics. The idea of null move pruning is also based on evaluation. If you have a bad evaluation you are going to see less real threats and it means that null move pruning is going to prune more good lines. Uri
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