Starts with the letter 'R'
- Raumschach - picture from the book. Pictures from book on Raumschach from beginning 20th century. Author: Hans L. Bodlaender. Inventor: Dr. Ferdinand Maack.
- Raumschach Photograph. Photo of a hand-built set by James Trimm. Author: James Trimm.
- Reenterent Chess - prototype board. Missing description By Edward Lovett.
- Review: Omnigon. Photos and Review. Author: Ben Good. Inventor: Mike Flynn.
|4 'Photograph page' entries listed||2 'Three dimensional' entries listed|
|2 'Small board' entries listed||1 'Board with hexagonal shaped cells' entry listed|
|1 'Sold commercially' entry listed|
Total items listed: 4