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.
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WITH BALL-POINT PEN: Includes a pen for easy puzzle solving on the go.
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FOUR DIFFICULTY LEVELS: For puzzles of every level, with whatever time you have.
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EXERCISE YOUR BRAIN: Give your mind a great workout as you pit your wits against these number-placement teasers.
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REDUCE STRESS: Feel your stress melt away as you focus on these satisfying puzzles.