Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Is it good idea?

Author: Severi Salminen

Date: 05:43:45 11/08/02

Go up one level in this thread


>I think he is saying "if this node is so bad that it is even a good candidate
>for being pruned away, why waste time taking a closer look ?".
>
>/Matthias.

That would something like this (actually futility pruning):

if(alpha>material_balance+mat_gain()+something) prune;

We would be pruning if can't most likely raise the score above alpha. Alpha
tells us nothing about present node when entering the node. So comparing alpha
to -INF or INF gives no useful info. It just tells how the search is doing now.

Severi




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.