5-Minute Sudoku (includes ball-point pen)

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 every level, with whatever time you have.*; EXERCISE YOUR BRAIN: Give your mind a great workout as you pit your wits against these number-placement teasers.*; REDUCE STRESS: Feel your stress melt away as you focus on these satisfying puzzles.