Game Instructions

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 Notes button below the grid, or pressing "n".
• You can switch between choosing the Number First or Cell First 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.

Support/Suggestions

Having a problem? Got a suggestion to improve the game? Let us know! Your screen resolution will be included automatically.

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