Author: Robert Hyatt
Date: 20:39:37 08/20/00
Go up one level in this thread
On August 20, 2000 at 15:48:48, Alessandro Damiani wrote: >Hi all! > >Does anyone use a shape of the tree made of > > - a full-width layer and > - a selective layer? > >I am playing around with ABC (Alpha-Beta Conspiracy Search). What I think is: a >full-width layer compensates errors the search makes in the selective layer, >thus permitting a deeper selective layer. But a full-width layer costs a lot if >not shallow. > >ABC uses variable depth. It permits deep lines like Singular Extensions. > >Alessandro This is not a bad idea. Cray Blitz did this. Full width for N plies, then selectively include only certain types of moves (IE checking moves, some passed pawn pushes, etc), and then the q-search. Early versions of Crafty also did this, but I eventually tossed it out for simplicity.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.