Filled0
Conflicts0
Time0s
Best-
Fill every empty cell.
How to play
Learn the objective before jumping into a new run.
- Choose 4x4, 6x6, or 9x9, then fill empty cells with digits that fit the row, column, and box.
- Fixed clues cannot be edited. Use Check puzzle to find mistakes or confirm a solve.
- A solved puzzle saves your fastest local time for that difficulty.
Controls
Keyboard and mobile instructions for this game.
- Mouse or touch: select an empty cell and type a digit.
- Keyboard: tab between cells and enter numbers directly.
- Use Check puzzle to validate the current board.
Tips
Small habits that can improve your score.
- Start with rows or boxes that have the most clues already filled.
- Use elimination: if a digit cannot fit anywhere else in a box, it belongs in the remaining cell.
- Check occasionally on larger boards so one early mistake does not spread.
FAQ
Quick answers for common questions.
Are these full Sudoku puzzles?
Yes. The game includes compact 4x4 and 6x6 variants plus a classic 9x9 mode.
Can I play Sudoku with touch?
Yes. Tap a cell and use your device keyboard to enter a digit.
When is best time saved?
Best time is saved only when the board is completely correct.
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