Super Sudoku : Sirius Entertainment : 9781398813519 : 1398813516 : 01 Jun 2022 : Ideal for whiling away the time while travelling, on holiday or relaxing at home. Guaranteed to provide hours of absorbing, brain-stretching entertainment. Sudoku is an ever popular puzzle type. Sudokus are extremely satisfying and enjoyable number-placement puzzles that give our brains a great workout. This wonderful collection of over 300 puzzles is 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.