Items Invented by Leo Nadvorney
- Spherical chess. Sides of the board are considered to be connected to form a sphere. (8x8, Cells: 64) Author: Alessandro Castelli and Fergus Duniho. Inventor: Don Miller and Leo Nadvorney.
- Nadvorney's Spherical Chess. Play Nadnorney's adaptation of Chess to a spherical board on Game Courier. Author: Fergus Duniho. Inventor: Leo Nadvorney.