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Subject: Re: Nullmove implementation

Author: Matthias Gemuh

Date: 02:49:02 05/20/02

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On May 20, 2002 at 04:54:20, Uri Blass wrote:

>On May 20, 2002 at 04:46:27, Pham Minh Tri wrote:
>
>>On May 20, 2002 at 04:04:54, Matthias Gemuh wrote:
>>
>>>
>>>Hi Experts,
>>>
>>>how can I prove that my nullmove implementation is correct? Or that nullmove
>>>helps?
>>
>>It is correct if your new engine:
>>- searchs more depths. Your engine should search deeper 1-3 depths with same
>>time as before.
>>- has same results with test sets (or may be very slighly different).
>
>I think the result in test suites should be better.
>
>At least my experience says that null move pruning improved the results in test
>suites and not only in games.
>
>Uri



Aren't there some "magic" positions which demonstrate the strength of nullmoves
:-)?

Matthias.




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