Author: Andrew Williams
Date: 12:16:54 03/10/03
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On March 10, 2003 at 14:49:30, Tom King wrote: >Hi all, > >One search extension which most programs seem to use is the passed pawn pushing >extension. When a move is made which is a passed pawn push to the 7th rank, we >extend the search by a ply. > >My programs has got away without this extension for years. Or perhaps "got away" >isn't right.. there have been losses which this extension might have prevented. > >Anyway, what do people think of this extension. Worth having? If so, what value >would you attach to it? > >Regards (and hi to all), >Tom >tom@silentshark.co.uk Hi Tom, At the moment, mine has: int extendPawnToSeventh = ONEPLY; int extendPawnToSixth = DONOTEXTEND; int extendPassedPawnPush = DONOTEXTEND; I've tried fractions for the other two, but never really found any success. Andrew
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