Author: Frank Phillips
Date: 12:39:22 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 I find extending (passers) on the 7th rank helps - and is cheap to test for, of course. Other pawn extensions never worked out well in practice, notably against Postmodernist and Crafty at CCT5 this year. Frank
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