- 2x2x16 Race Chess. Race Chess on a 2-level circular board with Crooked Bishops and Queens. (2x16x2, Cells: 64) By Ralph Betza.
- Ecutunnel and Ecumillstone. 3d versions of twin-board Ecumenical Chess, with a new front-rank piece. (4x12x4, Cells: 192) By Charles Gilman.
- Flipworld . Pieces are on both sides of a disc. Author: Dan Troyka.
- Flipworld. Pieces are on both sides of a disc. (6x7x2, Cells: 84)
|3 'Game' entries listed||1 'Zillions of Games file' entry listed|
|4 'Three dimensional' entries listed||2 'Large board' entries listed|
|4 'Circular shaped board' entries listed|
Total items listed: 4