Computer Chess Club Archives




Subject: Re: A story about NPS

Author: Uri Blass

Date: 12:16:07 01/27/01

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On January 27, 2001 at 10:10:47, Severi Salminen wrote:

>>You can go even faster if you remove checks to see that the moves are legal and
>>just go with pseudo-legal moves.
>Now I'm generating all pseudolegal moves (first all good (SEE) captures, then
>killers, then the rest sorted by history values and bad captures) and testing
>the legality after making the move. I don't know if that can be improved?
>>IOW, you are right, you cannot make _any_ assumptions based on NPS.  MCHESS has
>>demonstrated this for a decade or so, I think.
>And Crafty: pretty low on NPS and pretty high on strength...

Crafty is not the best example.
Gandalf is even lower on NPs and not weaker than Crafty in strength(I assume
both use one processor otherwise Crafty is fast on NPs).


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