Your game is loading, and this ad will close automatically (close)
The rules to Sudoku are very simple: fill in the grid so that every row, every column and every 3x3 box contains the digits 1 through 9. There is nothing more to it! There are 75 levels in total, split up into the categories Easy (1-25), Medium (26-50) and Hard (51-75). There is a timer, but no limit, so you can play at your own leisure or put yourself under pressure and challenge your friends.
Controls: Use the keyboard to select squares using the arrow keys and then type in the digit you want to place. 0 will set the square to empty. You can also fill in the grid by selecting squares with the mouse and pick digits from the small grid that pops up.