Computer Chess Club Archives




Subject: Re: A story about NPS

Author: Ulrich Tuerke

Date: 08:53:53 01/26/01

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On January 26, 2001 at 11:21:46, Severi Salminen wrote:

>Once upon a time there was a funny creature called Nellie the NPS...
> If I remove SEE from my engine I get a 2x speed up in terms of NPS. This of
>course results in an increase in number of nodes to be searched. Overall it
>seems that with SEE the strenght is not much higher than without. The funny
>thing is also that removing all futility pruning code results another increase
>in NPS (about 2x-3x). It is likely that removing it also decreases the strenght.
> The point of this stupid message is that: DON'T MAKE ANY CONCLUSIONS OF
>I have spoken...
>Severi "I'm tired" Salminen

If you "advance" to a pure minmax search, you'll again get a higher nps.

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