Yes. Notes mode lets you place candidate numbers per cell.
Sudoku
Runs locally in your browser. No sign-up.
Solve classic 9x9 Sudoku with notes, hints, undo, and keyboard controls.
Difficulty
Accent
Time
00:00
Mistakes
0
Hints used
0/3
Progress
0/1
Best
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Generating puzzle...
All gameplay runs locally in your browser. No network calls.
About this game
Classic number puzzle. This game runs locally in your browser for a private, low-latency experience. You can explore more in All Games.
How to play
- Pick a difficulty and start a new Sudoku board.
- Fill each row, column, and 3x3 box with numbers 1-9 without repeats.
- Use notes and hints when you need help.
- Finish the puzzle and start another board to practice.
Tips
- Fill obvious singles first, then use notes for uncertain cells.
- Scan rows and columns to eliminate candidates quickly.
- If stuck, switch to another 3x3 box and return with fresh context.
Frequently asked questions
Progress is kept locally while you play in the browser.
After page load, puzzle play itself runs locally without server calls.
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