Author: Jon Dart
Date: 14:42:47 12/05/00
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On December 05, 2000 at 16:46:17, Severi Salminen wrote: >BTW. Does my node counts look reasonable? I'm using MVV/LVA ordering in qsearch >+ nullmoves (R=2). No, they don't reasonable. I'm getting less than 1/8 of your node count at ply 8. I highly recommend instrumenting your program so that it prints out a search tree showing node alpha/beta windows, scores, and cutoffs. A close examination of this can show you what's going wrong (of course, looking at 4 million nodes isn't feasible, but if you have a basic problem then it will be apparent at low search depths). You can compare your output to another program like Crafty : Crafty's trace command will produce this information during a search (you will need to compile it with -DTRACE to enable this feature). --Jon
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