Computer Chess Club Archives




Subject: Re: Unusual Mate in 3

Author: John Merlino

Date: 14:57:55 03/02/06

Go up one level in this thread

On March 02, 2006 at 17:12:56, George Tsavdaris wrote:

>On March 02, 2006 at 00:26:08, Charles Roberson wrote:
>>  Came across this position by accident browsing chess club web sites.
>>  It comes from the Duke University Chess Club. The position is
>>  1r5k/4NP1b/7K/8/6R1/8/8/8 w - - 0 1
>>  Telepath found the mate in 4 but could not find the mate in 3.
>>  After some debugging I found out why!!!
>>  Just before the final ply in the mate in 3, Telepath announced insufficent
>>  material which is true. But in this position you can mate with insufficient
>>  material.
> Actually you can't mate with insufficient material. That's why it is called
>insufficient material. A KNKB situation is not insufficient material.....

Indeed. I can't remember if anybody reported that there are some GUIs that are
incorrect here, but I just verified that there is no such draw announcement in
the Chessmaster GUI.


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.