Big Book of Sudoku (500+ Puzzles)
- Over 500 engaging Sudoku puzzles included.
- Four difficulty levels: Warm-Up to Samurai Sudoku.
- Spiral-bound for easy use anywhere.
- Perfect gift for Sudoku enthusiasts.
- Hours of fun and mental challenge.
- Test your skills with Samurai Sudoku.
- Part of the Brain Busters Puzzle Collection.