Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: definition of fh first move

Author: Robert Hyatt

Date: 13:44:18 09/19/04

Go up one level in this thread


On September 19, 2004 at 13:23:32, Michael Henderson wrote:

>I'm confused about the definition of this stat.  Does one count null moves and
>hash hits in this?  My fh numbers vary dramatically based on what is counted.
>Thanks.
>
>Michael


No.  After you generate moves (which is after the null-move search, hash probe,
repetition check, etc) you watch for when you fail high at this ply.  For every
fail high, increment a counter total_fail_highs, if you are searching the first
move at this ply, increment another counter fail_highs_on_first.  When the
search terminates and you print statistics, print fail_highs_on_first * 100 /
total_fail_highs.  90+ is a good number for most cases...




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.