Each row of nine cells must contain each of the numbers from 1 to 9 once and only once. Each column of nine cells must contain each of the numbers from 1 to 9 once and only once. Each of the nine 3 by 3 boxes of nine cells must contain each of the numbers from 1 to 9 once and only once. the sudoku starts with a partially filled grid and you must complete the grid while following the rules above. Use YOUR MOUSE to control the game.
