Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: On tree sizes.

Author: Robert Hyatt

Date: 20:48:22 09/01/01

Go up one level in this thread


On September 01, 2001 at 12:34:24, José de Jesús García Ruvalcaba wrote:

>Sorry about beggining a new DB thread. A simple fact that has been overlooked in
>the latest arguments is that the tree size for DB can not be compared to the
>tree size of other programs, because
>-the hashtable handling is completely different (as Vincent has already pointed
>out).
>-even more stunning DB does not even use alpha-beta pruning (it does not use a
>straight minimax or negamax either).
>José.


Not sure what you mean by that last part.  The software part of DB's search
is pure alpha/beta.  The hardware uses a trick of only handling one bound.
It is not much worse than normal alpha/beta...



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.