a chess variant, in which the royal piece, which is to be checkmated, moves like a knight, whereas knights are replaced by non-royal kings (commoners) are placed on the board instead of knights. The value of a commoner is about 2.2 pawns.
- The Knightmate Challenge! by Harm Geert Muller, CCC, May 12, 2008
- The Knightmate Challenge 2010 by Harm Geert Muller, CCC, January 04, 2010
- Knightmate question by Tony Mokonen, CCC, November 29, 2011