Games Invented by Jens Baek Nielsen on Zillions of Games
- Dark Chess . You can see all of your pieces, but only those of your opponent that you attack. Author: Andreas Kaufmann. Inventor: Jens Baek Nielsen.
- Rooksquare Chess . Win by moving piece to corner at opponent's side. Author: Uwe Wiedemann. Inventor: Jens Baek Nielsen.
- Twiknight . Knights can make one double move a game, and always check with a double move. Author: Peter Aronson. Inventor: Jens Baek Nielsen.