ISBN-13: 9781544762364 / Angielski / Miękka / 2017 / 116 str.
SUDOKU Extremely Hard: - Sudoku Games Book For Adults Killer Gamers Sudoku Master Challenging, 1 Puzzle per Page, Special Bonus Included is one of the best Sudoku for you to practice it as much as you want.
- Pocket Size: It is designed in pocket book to carry everywhere you go.