- Accelerated Chess. White makes one move at first and then each player makes either a capturing move or two non-capturing moves. Author: Jeremy Gabriel Good. Inventor: Tony Paletta.
- Moderate Progressive Chess. A player may move one more piece than his opponent just moved. By Adrian Alvarez de la Campa.
- Multimove FIDE Chess. Each turn utilizes a number of points that get applied to movement. Author: Jeremy Gabriel Good. Inventor: David Howe.
- Multiple of 10 Checkmate. Variant where you can only checkmate or be checkmated on move 10, 20, 30, ect.. By Calvin Jack Pomerantz.
|4 'Play by mail item' entries listed|
Total items listed: 4