New Puzzle Every Day
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Play Sudoku Online – Free, Fast, and Fun

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📘 Sudoku Book (1008 Puzzles)

Alpha Sudoku is your go-to online Sudoku game – quick, modern, and completely free. Choose your challenge level, solve a new puzzle daily, and enjoy relaxing gameplay with smooth animations and optional sound effects. Prefer reading? Visit our blog. Want more? Grab our Sudoku puzzle book.

Frequently Asked Questions

Is Alpha Sudoku free to play?

Yes, it’s 100% free and ad‑free.

Do you collect any personal data?

No. We store only your sound/theme preferences locally in your browser.

Can I pick a difficulty?

Yes — Easy, Medium, and Hard are available. You also get a new puzzle every day.

Does it work offline?

Yes. After your first visit, the core pages are cached by the service worker so you can play offline.