Author: Anthony Cozzie
Date: 15:32:40 07/16/03
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On July 16, 2003 at 17:45:14, Keith Evans wrote: >I'm not sure if this problem is with my understanding of Crafty, or maybe I have >a bad build of Crafty 19.3. > >On a Linux box I compiled crafty for linux-elf and made sure to define TRACE. >(It looks to me like I want that based on looking at the code for OptionPerft.) > >Then I run crafty (leaving the normal starting position) and type the following >commands: > >trace 4 >perft 4 > >I captured the output to a file, and edited out everything wasn't a move. I >ended up with 197,742 lines even though perft found the correct number (197,281) >of leaves. (Note if I try perft 1, 2, or 3 then everything comes out equal.) > >I'm not sure why there are extra lines in there. (I piped it from sort into uniq >and didn't catch any duplicates.) My goal was to sort this list and then diff it >against the list of moves that my program generates. > >Any ideas? Why bother? If you generate fewer moves, it stands to reason that you will get smaller trees and outsearch other engines. This technique has always worked for Zappa :-) anthony
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