Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Couple of chess programming questions

Author: Andrew Williams

Date: 02:19:27 09/11/02

Go up one level in this thread


On September 10, 2002 at 20:17:21, Gian-Carlo Pascutto wrote:

>On September 10, 2002 at 19:52:32, Dann Corbit wrote:
>
>>If MTD(f) were linear [or linear behavior happened more than once in a blue
>>moon], then PostModernist would not score nearly so well, I think.
>
>I'm fairly sure Andrew uses convergence accelerators, so it's not
>strictly MTD(n,f) in PostModernist.
>

Yes. I do 1, 1, 2, 3, 4, 5, 6, 7, 7, 7... I've tried all sorts in my time:

 1,  2,  4,  9, 16, 25, 36, 36, 36...
 1,  1,  2,  3,  5,  8, 13, 21, 34, 55, 55, 55...
 1,  2,  3,  4,  4,  4...

If I get FH, FH, FH, FH, FL, I start heading back down subtracting from the
first numbner.

All of these work better for me than just using 1 for every step.

Andrew



This page took 0.03 seconds to execute

Last modified: Thu, 07 Jul 11 08:48:38 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.