Author: Rick Bischoff
Date: 23:45:45 09/21/04
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On September 22, 2004 at 02:16:55, Dann Corbit wrote: >On September 22, 2004 at 01:56:44, Rick Bischoff wrote: > >>Hello, >> >>I am using a variant of Ed Schroeder's move ordering technique described on his >>webpage-- part of this is move ordering based on a delta from a piece table >>(e.g., Moves like Nf3-g1 will get a negative score and be searched close to >>last) . I have this all working pretty good and I have it implemented for 3 >>different phases. However, I am *CLUELESS* as to what values I should put into >>the queen table. What makes a square good for a queen? > >Bishop + Rook = Queen. >;-) No... That would give the queen artifically higher scores, which is particularly bad in the opening. >>Also, I implemented a working copy of SEE now and have been experimenting with >>it-- is it worth the time it takes to execute a SEE to evaluate non-capturing >>moves to see if they are hanging? > >I don't understand this question. A piece is hanging if it is not defended (or >underdefended depending on what definition you use). A SEE will stop right >after the capture(s) because you did not defend it. If you look at crafty's swap routine, which mine is just a copy of modified for my program, you can pass in non-capturing moves to it. It will then tell you if the piece is hanging by returning a negative value :-)
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