New to Sudoku? Here are the rules:
  • Each cell can only contain a single digit number (1-9)
  • Each row, column, and unit (3x3 square) must have each digit once.
Some tips for playing here:
  • You can pause the game at any time by clicking the icon above the grid.
  • If you're on a computer, you can use your keyboard to navigate and fill out the puzzle.
  • You can switch between normal and "notes" mode by clicking the button below the grid, or pressing "n".
  • You can switch between choosing the or by clicking the respective button below the grid.
  • Use the button to tell us if the puzzle was too easy, difficult, or good as is.
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