Author: david burrell
Date: 23:41:45 08/08/99
There is a huge variation between the NPS reported by a variety of chess software. I realize that there are many factors that might effect NPS like move-ordering, complexity of static eval, hashing etc. but perhaps not all chess programs count the same thing. So what do you define NPS as? I would count calls to make-move. This is what my program does. I have heard that some people count total nodes generated by movgen and others count only leaf nodes. I am concerned that my program is very slow, about 15K NPS in opening positions on a P200, (crafy reports about 50K NPS). How does crafty count NPS? If the LG2000 winboard engine has peaked at over 1M NPS on a K6-2/450 then surely LG2000 is not counting calls to make-move 1M is very high!! Any comments would be greatly appreciated. Thanks. David.
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