Author: Anthony Cozzie
Date: 10:00:50 10/01/03
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On October 01, 2003 at 09:08:28, Sergei S. Markoff wrote: >Hello! > >>What is the new quasy-Botvinnik extension if > >Well. I can inform chess community about one of my quasy-Botvinnik methods. >I will be glad to receive your own experiment results and/or other >considerations about this method. > >One of Botvinnik ideas is to determine attack/defence targets for further >analysis of attack/defend trajectories. One of the way to find this target is >null-move search. If the result of null-move search < beta we can see the move >which fail low search bound. This move is a current threat. For example it's a >threat of losing some piece. > >During the further search in this node we can found the defending move. The main >idea is to extend the search if the threat moves on ply and ply+2 has the same >target (capturing the same piece, promotes the same pawn). I can give you >example if you want. > >It's one of simpliest way to use target info. But I think we can receive more >improvement exploiting this idea. > >Best wishes, >Sergei Wouldn't this have the effect of extending lots of silly moves? For example, if my Queen is hanging BxP+ KxP (extension triggers) R+ KxR (extension triggers) Just offhand, it seems to me like a good Q-search should fix these problems. anthony
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