Sudoku Puzzle Master Book 1,200 Puzzles, 300 Easy, 300 Medium, 300 Hard and 300 Extra Hard: Four Levels Of Sudoku Puzzles In This Jumbo Size Book

Have fun while exercising your brain. Sudoku helps delay dementia by making your brain work in a different way and giving you a great sense of accomplishment. This jumbo book contains 1,200 puzzles with four levels of increasing difficulty to improve your game. There are four puzzles per page and in case you get stuck the solutions are at the end of the book. 8.5" X 11"