Chess
Classic strategy, real opponents and the satisfaction of a perfect move.
Available on
Number puzzle
Sudoku Online
Pure logic and the joy of finding the next number.
About the game
The classic grid, with new constraints
Sudoku Online starts with a familiar idea: fill the grid so that each row, column and box contains no repeated numbers. Choose from four classic difficulty levels and work from the obvious cells towards the less visible connections.
For a change of pace, try X-Sudoku, Windoku, Killer or Kropki, each with additional constraints to consider. Pencil notes let you keep possible numbers in a cell while you reason through the grid. History and statistics give you a way to look back at your results.
- Four classic difficulties
- Choose a level to suit your mood and the time you want to spend on a puzzle.
- More ways to solve
- X-Sudoku, Windoku, Killer and Kropki introduce different links and restrictions.
- Pencil notes
- Record candidates in each cell and narrow down the possibilities step by step.
- Results and community
- View your history and statistics, compare leaderboard results and join the chat.
Take a closer look
Inside the game
Open any screenshot to explore the details.
Arrows: Picture Puzzle
Clear a path for the arrows and reveal hidden pictures.
Available on
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