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Subject: Re: Null move mate extension

Author: Ulrich Tuerke

Date: 04:48:31 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.

I get a lot of extensions this way, far more than I can afford to search. So I
only use this very close to the horizon (depth <= 2).
May be that you are doing something wrong ?

Uli
>
>Thanks,
>James



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