SUDOKU MASTER
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Mistakes: 0/3
timer 00:00
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How to Play Sudoku

Basic Rules

  • Fill the 9×9 grid with digits so that each column, row, and 3×3 box contains all digits from 1 to 9.
  • No digit can repeat in any row, column, or 3×3 box.
  • Some cells are pre-filled as clues to help you get started.

Game Controls

  • Select a cell: Click on any empty cell to select it.
  • Enter a number: Use the on-screen numpad or your keyboard (1-9).
  • Undo: Revert your last move.
  • Erase: Clear the selected cell.
  • Notes: Toggle note mode to pencil in possible numbers.
  • Hint: Reveal the correct number for the selected cell.

Difficulty Levels

  • Easy: More pre-filled numbers, perfect for beginners.
  • Medium: Balanced challenge for casual players.
  • Hard: Fewer clues, requires advanced techniques.