Author: Bruce Moreland
Date: 01:08:58 10/11/05
Go up one level in this thread
On October 10, 2005 at 23:37:41, chandler yergin wrote: >http://chess.verhelst.org/1997/03/10/search/ > >"Tree search is one of the central algorithms of any game playing program. The >term is based on looking at all possible game positions as a tree, with the >legal game moves forming the branches of this tree. The leaves of the tree are >all final positions, where the outcome of the game is known. The problem for >most interesting games is that the size of this tree is tremendously huge, >something like W^D, where W is the average number of moves per position and D is >the depth of the tree, Searching the whole tree is impossible, mainly due to >lack of time, even on the fastest computers. All practical search algorithms are >approximations of doing such a full tree search." It's true for chess. Some aspects are not true for tic-tac-toe, and some others are not true for other games that aren't like chess. I don't know where you are going with this. It's possible to make a lot of assertions about chess programs that people will agree with unless they don't understand the assertion. That the chess tree is too big to search to its limits with any sane hardware is obvious. Someone might mention quantum computers here, but that doesn't fall into the category of sane. bruce
This page took 0.01 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.