Author: Andreas De Troy
Date: 00:21:58 04/01/98
[I wrote a similar post a few days ago in rec.games.chess.computer, but it did not show up there (at least I did not see it), so I repost it now.] I am working on My First ChessProgram and I wonder how you people count these nps (nodes per second). I see that Nimzo98 claims 200 000 nps on a Pentium 200 and when I compare this to *my* current program I cannot imagine how I could ever reach, say, half of this number. I got typically between 45 000 and 70 000 nps with material evaluation only. So how do you count this? I saw in Crafty the "nodes++"-statement at the beginning of the ab-search and the q-search, and that's how I count too. But maybe you should count the number of generated moves instead? (The number would be much higher then.) And a few days ago I saw in a message from KK that hashing influenced this number too so my second question is: are the hits counted, or aren't they? Thanks for any info on this, Andreas De Troy.
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