This is a simplified version of the overwhelmingly popular Sudoku puzzle game--a great way to introduce kids to logic and making math fun! Game includes a booklet with 50 puzzles and their solutions, magnetic playing pieces and instructions. The handy zippered tin opens flat to form the play board, and the playing pieces are thick and grab-able and stay firmly in place so you can store them mid-game to start again later. They are perfect for car, train, boat and plane trips. Tuck one into a bag and take along to keep the kids busy at a restaurant or when visiting grandma.