Computer Chess Club Archives

Search

Messages

Subject: Re: takes shredder5 51 seconds to find mate in one

Author: Gian-Carlo Pascutto

Date: 03:48:02 09/28/01

Go up one level in this thread

On September 27, 2001 at 18:13:57, Roy Eassa wrote:

>Would it be reasonable, then, for modern programs to avoid doing extensions on
>the first several ply?  Or for the first 1% of the allotted time?  Or something
>like this?

As Christophe already explained, this isn't a matter of extensions (those
_are_ nearly always limited to prevent explosions like this) but of
a quiescent search going mad.

A simple and working way to prevent this is by limiting the depth of
the quiescent search to two times the depth of the normal search.

I works nicely and I suspect Christophe uses something similar.

--
GCP

• Re: takes shredder5 51 seconds to find mate in one Uri Blass 05:06:29 09/28/01
  • Re: takes shredder5 51 seconds to find mate in one Georg v. Zimmermann 02:37:39 09/29/01
    • Re: takes shredder5 51 seconds to find mate in one Uri Blass 04:00:38 09/29/01
      • Re: takes shredder5 51 seconds to find mate in one Georg v. Zimmermann 06:38:53 09/29/01
        • Re: takes shredder5 51 seconds to find mate in one Uri Blass 07:56:19 09/29/01

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.