Author: Ryan B.
Date: 13:14:55 04/07/05
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On April 07, 2005 at 00:15:33, Pallav Nawani wrote: >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 And some squares are more important than others. If anyone can explain an algorithm to calculate the importance of each square for the situation I would greatly appreciate it. -Ryan
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