- Ministers Chess. Commercial variant on a 9x9 board with an extra Queen (called a Minister). Author: Greg Strong. Inventor: Michael Corinthios.
- Roman Chess. Commercial chess variant on a 10x10 board with two non-royal kings added. Author: Greg Strong. Inventor: Mark Woodall.
|2 'Game' entries listed||1 'Large board' entry listed|
|2 'Sold commercially' entries listed|
Total items listed: 2