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Subject: Re: null move and mate threat

Author: Andrew Platt

Date: 19:02:41 10/08/04

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On October 08, 2004 at 18:43:04, Stuart Cracraft wrote:

>Okay so on the one hand I am supposed to do a reduced
>search for null move with bounds -beta,-beta+1, and
>return if the value is >= beta.
>
>The mate threat has to be compared with a mate value
>but the beta's above aren't relevant. Do I need to
>do a second reduced search after the above with bounds
>-MATE,-MATE+1 and see if it is >= MATE and if so set
>the mate threat flag to trigger the extension???

When I added it I had to systematically go through my code and find all the
places I returned alpha & beta and change them to return the actual score. This
included the hash table code.

Andy.

• Re: null move and mate threat Uri Blass 20:02:52 10/08/04
  • Re: null move and mate threat Stuart Cracraft 08:37:59 10/09/04
    • Re: null move and mate threat Uri Blass 12:19:37 10/09/04
      • Re: null move and mate threat Stuart Cracraft 14:28:31 10/09/04

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