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Subject: Re: Null move mate extension

Author: David Blackman

Date: 05:57:12 06/25/99

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On June 25, 1999 at 02:29:45, James Robertson wrote:

>I implemented the threat exension in the null move (if the null move returns
>that we were mated, then extend), and I almost _never_ get any extensions this
>way. Maybe 3 or 4 times in an entire search, if that many. How many is normal?
>Do I have a bug? Any help is appreciated.
>
>Thanks,
>James

Do you do fail-soft alpha-beta? If you do, the extension should trigger more
often.



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