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Subject: Re: Null move R=3

Author: Bruce Moreland

Date: 00:27:47 08/08/01

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On August 08, 2001 at 03:11:45, Tony Werten wrote:

>On August 07, 2001 at 16:03:34, Bruce Moreland wrote:
>
>>I've often heard people state that null move with R=3 is better than with R=2,
>>but I have never ever ever gotten a test result that indicates this.
>>
>>I've tried everything.  I've tried it throughout the tree, I've tried it near
>>the root, and I've tried it near the tips.
>>
>>My measurement standard is ECM positions solved, which *always* goes down.
>
>I'm not really sure but isn't ECM an endgame testsuite ? Using R=3 you have to
>make sure there are some pieces (not pawns) on the board. ( or use double
>nullmove )

ECM is mostly middlegame stuff, with a lot of straight tactics.  There are 879
positions.  A lot of them are easy, cooked, or broken, but overall it is
alright.

bruce

>
>cheers,
>
>Tony
>
>>
>>What are other people doing that I'm not doing, or are people testing in some
>>other way, if so is their way better or worse?
>>
>>I would test Crafty both ways (it's currently doing R=3 some places), but my
>>machines will be busy until after the WMCCC.
>>
>>bruce



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