Author: Stuart Cracraft
Date: 08:37:59 10/09/04
Go up one level in this thread
On October 08, 2004 at 23:02:52, Uri Blass wrote: >On October 08, 2004 at 22:02:41, Andrew Platt wrote: > >>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. > >I did not need to do it >returning mate or -mate when the score is mate in the qsearch was enough for me. > >The new version is better in the ecm-gcp test suite but I need to test to see >if it is better in games. > >Uri Uri -- please post movei's wac 141 search. Stuart
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