Your Next 200+ Missions | Sudoku Samurai | Hard Puzzles Books Edition

Your brain is capable of doing so many things if you feed it like you do the rest of your body. Brain food can come in nutritious snacks and hard puzzles like Sudoku. So imagine that you're a number samurai and your goal is to complete all the puzzles in this book. Can you do it? How fast can you get it done? Set your timer now!