Starts with the letter 'O'
- One dimensional Chess Variants. A page detailing some one dimensional chess variants. Author: Hans L. Bodlaender.
- One Ring Chess. One dimensional chess played on a ring-shaped board. (Cells: 32) By Larry L. Smith.
|2 'Game' entries listed||2 'One dimensional' entries listed|
|1 'Unorthodox shaped board' entry listed|
Total items listed: 2