Author: Pallav Nawani
Date: 21:15:33 04/06/05
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On April 06, 2005 at 10:59:26, Graham Laight wrote: >On April 06, 2005 at 10:32:43, Meg Ryan wrote: > >>Has anyone got any advice of writing a good position eval? > >* write a function that takes two chess positions and produces a value between 0 >and 1 depending on how closely they match > >* match the given position with every position in the chessbase database, >scoring it as 1 if the player won, 0.5 if the game drew, or 0 if the player >lost. Use the position matching function as a weighting, and then sum your total >answers > >-g > > This is a bad idea for the following reason: In chess, some times even a square's difference can be the difference between a win and a draw or a loss. Your method will fail in such situations. And these situations are far more plentiful than one would expect. Pallav
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