Fill up the grids in the Sudoku boxes so that each grid contains all of the numbers 1 through 9, and each horizontal and vertical row contains the numbers 1 through 9 without repeating any numbers. If you try to enter a number in a row, column, or grid where that number already exists, the game will prevent you from doing so. To select which number you want to add to a square, simply click it on the row of numbers at the bottom of the game. The games change daily, so check back often for new games.
ATTENTION FIREFOX USERS: If the game doesn't load completely, right-click the game and select "Play." This will bring up the main menu of the game.