- 200 Sudoku Medium to Hard: Medium to Hard Sudoku Puzzle Books for Adults With Solutions
- 200 Sudoku Hard to Extreme: Hard to Extreme Sudoku Puzzle Books for Adults With Solutions
- 150 Sudoku for Kids Age 10-12: Sudoku With Cute Monster Books for Kids (Sudoku Puzzle Books for Kids)
- 200 Sudoku Extremely Hard: Extremely Hard Sudoku Puzzle Books for Adults With Solutions
- 200 Sudoku Extrem Schwer: Extrem Schwer Sudoku Puzzle B�cher f�r Erwachsene mit L�sung
















