Author: Will Singleton
Date: 17:47:13 12/11/01
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On December 11, 2001 at 16:54:50, Will Singleton wrote: >On December 11, 2001 at 14:13:10, Andrew Dados wrote: > >>On December 11, 2001 at 10:59:55, Will Singleton wrote: >> >>>[D]4k2r/1nrqbppp/p3b3/1pppP1NQ/8/1NP1B2P/PP3PP1/R4RK1 w k - 0 1 >>> >>>Most programs don't immediately see that Nxh7 puts the knight in a bad spot. >>>Can this problem be addressed by root analysis? >>> >>>(Beowulf might be doing something like that, since it never considers Nxh7.) >>> >>>Will >> >>consider this: >> >>[D]8/6pN/5p2/8/8/8/8/8 w - - >> >>The only square N can escape through is c8... >>So you may treat N on a/h 7th rank as vulnerable as bishop and just set your >>squaretable value for N to - 1 pawn there (or more). If search can see N will >>leave h7 safely - you are pawn up; if it stays there - it is probably in >>trouble. >> >>-Andrew- > >I do something similar for B & N, but only for the root move. Perhaps your >method is simpler and better. > >Will I tried your approach, it didn't work. Somehow the pv has the knight moving off the square, but I didn't really analyze it. Seems like it should work, but it didn't for me. How does your prog handle the position? (Assuming your approach is implemented.) Will
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