Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: search reductions?

Author: Anthony Cozzie

Date: 06:02:50 11/17/03

Go up one level in this thread


On November 17, 2003 at 07:30:59, Daniel Shawul wrote:

>you are right,i meant deeper? Do you know any good place sir?
>i have found rebel's programming
>topics(http://members.home.nl/matador/chess840.htm) but you know
>they evaluate each node of the tree,which is quite costy for my program.
>Also I tried to reduce the search depth by 1,if
>score + margin < alpha for depths greater than 3.But no improvement at all since
>I have to use a margin of atleast a queen to assure safety.
>
>regards
>Daniel

IMO, it is impossible to do accurate pruning without search or evaluation,
unless it is done at horizon nodes only, or your program has a _very_ simple
eval with positional terms usually < 1 pawn.

anthony



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.