Computer Chess Club Archives




Subject: Re: Is the NPS tend to grow at the end of the game?

Author: Jeremiah Penery

Date: 22:52:03 07/22/00

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On July 22, 2000 at 16:26:19, Robert Hyatt wrote:

>On July 22, 2000 at 14:44:19, Jeremiah Penery wrote:
>>On July 22, 2000 at 09:35:12, Robert Hyatt wrote:
>>>This is way too hard to answer directly, because it varies by program and
>>>by approach.  My NPS doesn't change much, because of the way my move generator
>>>works.  I have noticed that Ferret is just the opposite and speeds up
>>>significantly in the endgame.
>>On my machine (PII-300), the NPS of Crafty goes from about 90k in the opening to
>>almost 300k sometimes in the ending.
>I don't see swings that big.  With tablebases my NPS gets pretty low in

True, as I'm not using any TBs at the moment.  When I had TBs enabled, my NPS
dropped a ton, partly because I have a pretty slow HD.  IIRC, the NPS dropped to
<50k often when about 8-9 pieces were still on the board.

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