Author: Aivaras Juzvikas
Date: 06:07:15 07/16/04
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On July 16, 2004 at 08:55:50, Fabien Letouzey wrote: > >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. as i understand a node is a pv node if beta != alpha + 1
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