Sudoku Puzzles for Recess by Rios, Michael

Have hours of fun with this collection of 77 sudoku puzzles!

Whenever you need something cool to do, pull out this book and get started! To solve sudoku puzzles, all you need to know is this simple rule: fill in the boxes so that each row, column, and heavily outlined region contains each number exactly once. And that's all there is to it! From rainy days to vacations, these puzzles are sure to provide hours of entertainment.