Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: how to report the length of a mate

Author: Robert Hyatt

Date: 19:20:55 08/21/02

Go up one level in this thread


On August 21, 2002 at 18:33:16, Jeroen van Dorp wrote:

>[D]8/Q7/K7/5r2/5p2/8/6k1/8 w - - 0 1
>Mate in 103 / Mate in 104
>
>I used Wilhelm to find out the longest mate wK+Q against bK+R+P from my
>tablebases. It gave the above position.
>
>Wilhelm calls this a mate in 104 - mate on move 104? - but if I feed the
>position in CB8 the tablebase engine calls it a mate in 103.
>
>Both use the same TB's; isn't there a convention how to call a mate read out
>from the TB's? Or is it up to the GUI programmer to report it either way?
>
>J.


The generally agreed-on way is mate in N moves.  Which would, by necessity
count the first move.  IE AAA BBB CCC DDD EEE# would be a mate in three
moves...

not everyone does this however...



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.