Skip to content
OFFPLAY
Sign in

Sudoku

Fresh puzzles with unique solutions, notes and four difficulty levels.

Puzzle 5–30 min
Loading game…

About Sudoku

Play free Sudoku online with freshly generated puzzles that always have one unique solution. Choose Easy, Medium, Hard or Expert, use pencil notes, highlight matching numbers and undo mistakes. Your fastest times are saved to the leaderboard.

How to play Sudoku

  1. Fill every row, column and 3×3 box with the numbers 1 to 9.
  2. Select a cell, then tap a number or type it on your keyboard.
  3. Turn on Notes to pencil in candidates.
  4. Complete the grid without mistakes to post a time.

Sudoku FAQ

Does every puzzle have a single solution?

Yes. Each puzzle is checked by a solver before you see it to make sure there's exactly one solution.

Looking for more? Browse all free games, set up an office tournament, or check the leaderboard.

You might also like

Maze Runner game artworkSolo

Maze Runner

Procedurally generated mazes. Find the exit as fast as you can.

Puzzle 1 1–5 min
Spot the Difference game artworkSolo

Spot the Difference

Two scenes, five sneaky changes. Can you find them all?

Puzzle 1 1–3 min
2048 game artworkSolo

2048

Slide, merge, reach 2048, then keep going.

Puzzle 1 5–15 min
Minesweeper game artworkSolo

Minesweeper

Classic logic sweeping with a safe first click and flag mode.

Puzzle 1 2–10 min