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Subject: Re: Verified Null-moving

Author: Pham Hong Nguyen

Date: 05:30:16 08/13/04

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On August 12, 2004 at 18:18:40, Ross Boyd wrote:

>On August 12, 2004 at 06:58:36, Pham Hong Nguyen wrote:
>>>Be careful with R=3. It has the potential to make your engine go blind. I lost
>>I gess you did not read about Verified Null-moving yet ;)
>I implemented it more than a year ago. It worked in some positions... not in
>others... so I removed it. So much has changed in my engine since then it could
>work if I tried it again.
>What I meant to say was "Be careful with pure R=3."

Sorry, but I think Verified Null-moving is designed for working with R=3 only
because of attraction of getting fewer nodes. The aim of verification to reduece
the risk of R=3. Any other value of R will make this algorithm become useless.


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