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The top scores from last week get their avatar used in this weeks score board. A new board is made each refresh so you can try more than once! You must be logged in to get on the scoreboard.
The 9 avatars on the top represent the numbers 1 to 9. Simply drag them onto the relevent spots on the main board to add them. You can find a guide to playing sudoku here, if you are not sure how to play.
The timer starts once you press 'Start Game'.
We automatically check your progress throughout the game, and we will alert you once you have completed it.