Items Invented by Bruce R Trone
- Bank of Scotland -- Main Branch. Progressive Variant where each check earns the player an extra move, and check ends turn. Author: Ed Friedlander. Inventor: Bob Bruce and Bruce R Trone.
- Bank of Scotland -- Modern Branch. Progressive Variant where each check gives a player another move, and move is ended by check or move to defended square. Author: Ed Friedlander. Inventor: Bob Bruce and Bruce R Trone.
- Check Force Chess. The player giving check decides how the opponent escapes. Author: Ed Friedlander. Inventor: Bruce R Trone.