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Subject: Re: Verified Null-moving

Author: Tord Romstad

Date: 02:27:51 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 ;)
>>Pham
>
>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."

Actually, you should be careful with _everything_ in chess programming.  It
is never a good idea to blindly assume that something will work well in your
engine just because somebody else claims good results with it.  Everything,
even apparently obvious improvements, need to be tested carefully.

Tord



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