Author: David Rasmussen
Date: 11:05:51 01/30/02
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On January 30, 2002 at 11:01:18, Gian-Carlo Pascutto wrote: >On January 30, 2002 at 10:55:35, Vincent Diepeveen wrote: > >>Kevin, bob has a small problem defending deep blue as >>40^9 is such an incredible number of nodes needed, that you >>must not confuse it with the 'branching factor' which bob >>uses. branching factor is something entirely different than >>total number of nodes > >The branching factor is _directly_ related to the number >of nodes needed to search to a certain depth. > >Funny how you constantly ignore counterarguments so you >can keep spewing out nonsense at a greater rate. > >-- >GCP There is nothing that implies that Deep Blue had especially good branching factor. Hsu was a firm believe in sound searching and hated things like null move pruning etc. I've heard extensions mentioned (specifically singular extensions) regarding DB, but never forward pruning, which is the only way to get a significant cut in branching factor. /David
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