Computer Chess Club Archives




Subject: Re: Unusual Mate in 3

Author: George Tsavdaris

Date: 14:12:56 03/02/06

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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.....

>  It put such a smile on my face, I had to share it.
>  Maybe some of you have the same logic flaw in your code.

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