Computer Chess Club Archives

Search

Messages

Subject: Re: Hash and first Fail High

Author: Robert Hyatt

Date: 19:56:34 08/15/03

Go up one level in this thread

On August 14, 2003 at 15:27:06, Peter Fendrich wrote:

>1FH = The ratio where the first generated move in the node is a Fail High.
>
>I experimented with removing the the hash table and became a bit surprised.
>Normally I have about 1FH = 95-96%. When I removed the hash table that figure
>raised to more like 1FH = 96-97% while the search depth, as expected, was
>decreased.
>
>Increased 1FH when removing the hash table. Is this normal?

Probably.  You increased the size of the tree.  And for the extra stuff you
searched, you searched it pretty accurately.  But you _did_ search it, which
slowed you down.  :)


>
>/Peter

• Re: Hash and first Fail High Gian-Carlo Pascutto 04:23:49 08/16/03
  • Re: Hash and first Fail High Robert Hyatt 20:14:45 08/16/03
    • Re: Hash and first Fail High Tony Werten 01:39:43 08/17/03
      • Re: Hash and first Fail High Robert Hyatt 19:13:07 08/17/03
  • Re: Hash and first Fail High Robert Hyatt 20:14:44 08/16/03
    • Re: Hash and first Fail High Gian-Carlo Pascutto 07:41:20 08/18/03
      • Re: Hash and first Fail High Robert Hyatt 08:36:42 08/18/03
        • Re: Hash and first Fail High Gian-Carlo Pascutto 09:53:46 08/18/03
          • Re: Hash and first Fail High Robert Hyatt 07:25:54 08/19/03
• Re: Hash and first Fail High Uri Blass 22:30:18 08/15/03
  • Re: Hash and first Fail High Robert Hyatt 20:16:07 08/16/03

This page took 0.01 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.