Author: Gerd Isenberg
Date: 14:26:41 03/02/06
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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..... Exactly - i think king in corner with other king in opposition or knight distance is sufficent for interior node recognizers to return DONT_KNOW rather than DRAW. > > >> >> 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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