Author: Ryan B.
Date: 22:37:13 12/04/05
Go up one level in this thread
On December 05, 2005 at 01:31:21, allan johnson wrote: >On December 04, 2005 at 20:15:42, Jaime Benito de Valle Ruiz wrote: > >>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 >Jaime Thanks for the feedback.You are probably right; it was just that I was >surprised that Fritz 9 and CM 10 came up with the 0.00 score immediately. >Al Should not be surprised. It is simple draw recog. Not needed recog with EGTB though.
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