Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Problem Solved!!!

Author: Vincent Diepeveen

Date: 06:01:33 10/10/00

Go up one level in this thread


On October 10, 2000 at 05:30:39, Steve Maughan wrote:

>Yes I found the problem!  I was trying to be too clever with Null moves, by
>attempting to predict if it would be successful - once I ripped this code out it
>performed as exected.  It now searches 1400 kn in ~ 9 secs to complete 9 ply.
>
>The only problem now is that I see that the first move cutoff ratio is only 84%
>- far too low!

i have 85 to 86% there, so not much better.
what is your fliprate: chance that a move which in hashtable was stored as
<= alfa node (or pv node) that it gets >= beta now?

>Thanks to you all for the help!
>
>Steve



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.