Author: Jaime Benito de Valle Ruiz
Date: 17:15:42 12/04/05
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On December 04, 2005 at 19:08:08, allan johnson wrote: >Can someone tell me why Fruit2.2.1 evaluates this drawn position, >[D]2b1k1b1/8/8/8/8/8/5K2/8 b - - 01 >so highly for black? (-7.99) Admittedly after the evaluation is completed an >info message comes up saying insufficient material but I was curious about the >reason for the score. >Al > The reason is very simple: Fruit uses a very simple code to recognize drawish endgames, and in this case it assumes that a bishop pair will have both coloured bishops (and I bet Fabien was aware of this limitation when he wrote the code). He probably did it like this is because that is what you will get virtually every single time in REAL games, so the code works fine in practice, not in imaginary test positions like this. Surely Fabien could have added a few more lines just to prevent people from finding twisted positions that have no effect on the real playing strength of the program, what why be bothered? Regards, Jaime
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