Items Invented by John Zimmerman
ZM Machiavellian Quadchess. Modernization of Chaturanga for four players. By John Zimmerman.
Chaturanga for Four -- Machiavellian Version. Cutthroat new version. Author: Ed Friedlander. Inventor: John Zimmerman.
Check out Makruk (Thai Chess), our featured variant for March, 2025.