Author: GeoffW
Date: 15:21:51 08/06/04
Hi My program has been playing some test games against Dorky and getting soundly beaten, it got me thinking about my eval function which is pretty dumb and badly in need of some chess knowledge ! What I noticed in some of the games was that Dorky was seeing threats sometimes 10 or 15 plies earlier than my program, as we were searching to similar depths it could only be that Dorky has much better eval function. Here is one of the positions that showed this effect, material is even, but black looks to me to be in a horrible position [D]1b3rk1/4qb1p/2r1pRpP/2ppP1P1/P3pQB1/1PB1P3/8/5RK1 b - - 9 44 My program (Black)reckoned that it was only 0.25 of a pawn down, where as Dorky reckoned white was winnning by 2.2. I tried this position with a few programs, only Dorky and Crafty scored white ahead by > 1.5 pawns. Any suggestions as to what the important factors are to evaluate this position as strongly good for white ? My program hasnt really got any mobility scoring, no king tropism and rather basic pawn structure eval. Wondering which area I ought to try first ? Regards Geoff
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