My Smart SUDOKU Paperback

My Smart Sudoku Paperback - Blue Edition
Handy paperback with 600 Sudoku puzzles with solutions and instructions.
Puzzle where you want! In the train, on the bus, in the waiting room or at home.
The paperback format makes your Sudoku paperback a companion. You will not be bored. In addition to having fun, you also train your brain. Details about the book:
- Pocket book size 15.24 cm x 22.86 cm
- Blue Edition = very difficult puzzles (there are easy, medium, difficult and very difficult)
- 600 Sudoku puzzles
- 6 Sudoku puzzles on one side
- with all solutions
- Quick start Guide