Sudoku is fun and addicting! Challenge your brain--but not on your eyes--with this collection of 162 sudoku puzzles!5 levels of difficulty offer something for puzzlers of all experience levels.Sudoku grids are large, easy to read, and simple to fill out.Spiral binding allows the book to lay flat for easy puzzling, whether at home or on the go.Complete answers are located in the back of the book.192 pages