Sudokus are the ever-popular number placement puzzles that provide an engaging workout for the brain while improving logic and concentration. With a range of difficulty levels included, you can gradually build confidence and sharpen your skills at your own pace. Presented in a convenient pocket-sized format, this collection is ideal for travel, commuting or relaxing moments at home. Focusing on each grid helps ease stress and encourages calm, making these satisfying puzzles both mentally stimulating and wonderfully relaxing.