Sudoku Classic

Classic Sudoku Game. Click on a cell to enter a number. You can enter numbers from 1..9. Every number can only occur once per row, column and 9x9 box. To delete a number using the numeric keypad in the game, you must enter the number again.

1. 1

   Each box, row and column must contain each number once - no repeats.

2. 2

   Look at the empty cells and cross out numbers that already appear in that row, column or box.

3. 3

   The number left over is the only one that can go there.

4. 4

   Type the number in, or tap the cell and choose it.

5. 5

   Stop when every empty cell is filled - then check for mistakes.