Author: Vincent Diepeveen
Date: 10:07:41 01/10/00
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On January 10, 2000 at 10:08:29, Ulrich Tuerke wrote: >On January 10, 2000 at 07:41:08, Vincent Diepeveen wrote: > >>On January 09, 2000 at 22:36:57, leonid wrote: >> >>>Hello! >>> >>>What is a use of extensions and what kind of extensions existe in chess game? >>> >>>Thanks for explanation! >>>Leonid. >> >>I see extensions as takin a deeper look to some lines analyzed by the >>machine, because the nominal search depth is likely to miss the outcome >>of it. So i would extend a move only if there is a chance for a horizon >>effect if not applying the extension. >> >>The most obvious extensions: extend when in check, extend when mate threat. >>Other possible extensions: extend when passed pawn races are happening. >> >>Vincent > >in other words, it's a workaround for the infamous horizon-effect. Extensions >should make it more difficult for the program to shift relevant lines beyond the >search horizon. That's very well formulated Uli! >Uli
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