- Chess in the Round. 1970's commercial variant that allows turning corners with the Rook and Queen. (8x8, Cells: 64) Author: Barry Yoner.
- Imperial Chess I. Four-player game on circular board, also called Chez. Author: Ed Friedlander. Inventor: Donald irvin Gebhart.
- Imperial Chess II. Standard array with extra Pawns on a round board. Author: Ed Friedlander. Inventor: Chris Fanning.
|1 'Game' entry listed||2 'Java Program' entries listed|
|2 'Large board' entries listed||3 'Circular shaped board' entries listed|
|3 'Sold commercially' entries listed|
Total items listed: 3