Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: mate threat extension/null move

Author: Michael Henderson

Date: 11:49:29 10/07/04

Go up one level in this thread


On October 05, 2004 at 18:41:58, Stuart Cracraft wrote:

>On October 04, 2004 at 20:23:27, Don Beal wrote:
>
>>Hmmm.  It's very helpful to post the actual code.
>>My time is limited though.
>
>No problem -- you've made good comments and de-lurked
>and everyone enjoys that.
>
>The bet was to decrease the WAC #141 problem down to <= 10
>seconds without turning off the null move as one
>claimant had done.
>
>Although I am now at 49 seconds for WAC 141 solution with
>null move enabled and not limited compared to the earlier 95
>seconds, the <= 10 bet is still open. I'll hereby double the
>bet to $100 to the first person who helps me achieve it directly.

Hi Stuart,

How do you handle mate scores (probe/store) in the hash table?  That is a tricky
concept sometimes and can lead to bugs :) Also, if you use "bounded" mate scores
in the hash table your scores will not be exact.  Exact mate scores are
necessary for the mate threat detection.

Michael



This page took 0.12 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.