Sudokus are extremely satisfying and enjoyable number-placement puzzles that give our brains a great workout. This brilliant collection contains more than 900 puzzles, graded by level of difficulty from beginner to the experienced solver. •IMPROVE YOUR SOLVING SKILL: Each puzzle is graded, from beginner to expert, so you can enjoy the satisfaction of seeing your skill improve as you work through the levels. •EXERCISE YOUR BRAIN: Give your mind a great workout as you find where each missing number fits. •REDUCE STRESS: Feel your stress melt away as you focus on these satisfying puzzles.
