Items Invented by Paul Kreutzer
- Back-to-Back Chess. Both sides start "Back-to-Back", seperated by an uncrossable line on a specially-shaped 100 square board. (14x8, Cells: 100) By Paul Kreutzer.
- Back-to-Back Chess . Both sides start "Back-to-Back", seperated by an uncrossable line on a specially-shaped 100 square board. Author: Peter Aronson. Inventor: Paul Kreutzer.