GameU Sudoku

Rules of Sudoku Each row must contain the numbers 1 through 9Each column must contain the numbers 1 through 9Each 3x3 block (nonet) must contain the numbers 1 through 9 How To Begin Select a difficulty level and press the "Make Puzzle" button. Hover your mouse cursor over any cell and type a number. In "Cells" mode, the number is entered into the selected cell as a guess towards solving the puzzle. In "Notes" mode, the number is entered as a "pencil mark" to help you keep track of possibilities....