Author: Robert Hyatt
Date: 15:32:23 07/03/03
Go up one level in this thread
On July 02, 2003 at 14:38:25, Dieter Buerssner wrote: >On July 02, 2003 at 14:27:11, Michel Langeveld wrote: > >>>Also, this position is Fine 70 (not 60), IIRC. :) >> >>Why is there less ply needed to solve it with using hashtables? > >This position is about tempo tricks. In a normal alpha-beta search using engine, >even with optimal move ordering, you have to do all moves, and refute them. Many >such moves will yield in shortcuts to the mainline. The HTs will remember the >positions after the shortcuts, and with this info, the engine can see the >mainline earlier. > >>p.s. Yes I saw after this post it's Fine #60 ... also I mean one pawn upwards >>instead +2 > >Seems the "7"-key is not working well on your keyboard :-) > >Anyway, when your engine solves this fast, but needs still 26 plies with HTs, I >think it is no reason to be concerned. > >Regards, >Dieter I would agree. But if it needs _more_ than 26 plies, look out, although that could be a zugzwang problem if you use null-move in pawns-only endings.
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.