5-Minute Sudoku (includes ball-point pen): Over 120 Puzzles

A fast, fun puzzle collection designed for busy minds who want a quick brain boost anytime, anywhere.

Only got 5 minutes? This collection of 120 sudoku puzzles with a handy ball-point pen is perfect for puzzling on the go. Spanning across a number of difficulties, these puzzles are the perfect way to keep yourself entertained and your brain engaged during a spare few minutes.

• WITH BALL-POINT PEN: Includes a pen for easy puzzle solving on the go.
• FOUR DIFFICULTY LEVELS: For puzzles of ever...