Author: Fabien Letouzey
Date: 05:55:50 07/16/04
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On July 16, 2004 at 08:39:41, Aivaras Juzvikas wrote: >that sounds logical, however have you tested this in the games? for me the >version with nullmoves allowed in pv nodes plays better.. Let's make sure we are talking about the same thing before proceeding further. I was talking about (actually against) allowing null move in the PV, which is not the same as "at PV nodes". In the PV means *inside* of the alpha-beta window (exact score). You sound like you might be talking about whether or not to try null move at PV nodes, which is a different topic (and only used for fail high, which means the node is not in the PV after all). I don't know of any PVS-like engine (or alpha-beta based for that matter) which allows null move in the PV. Fabien.
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