Author: Dana Turnmire
Date: 13:50:06 09/26/03
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On September 26, 2003 at 14:22:31, Peter Stayne wrote: >A lone Bishop or lone Knight or no other pieces besides the King. I don't know >if two knights is considered insufficient since it is POSSIBLE to mate with 2 >N's, but it would have to be a helpmate (IIRC). It is well known that a single knight is insufficient mating force, if it is the only unit on the board. It is equally well known that two Knights cannot mate by force, if they are the only survivors on the board. Paradoxically, if the adversary is left with some material, a pawn or two, there are occasions even when a single knight is a decisive advantage. Below is such a position. [d] 4N3/8/6p1/8/8/7p/5K1k/8 w - - This is another variation of the same theme. [d] 8/8/8/2N5/8/7p/5K2/7k w - -
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