A little focus. A lot of fun. Your next favourite habit starts here.

A little Sudoku. A lot of clarity.

Find the next number. Find your flow. This moment is yours.

Free to playNo sign-upSaved on this device

Finding your tempo…

Getting your puzzle space ready.

NINE NUMBERS. ONE SATISFYING SOLVE.

How to play Sudoku

Fill every empty square with a number from 1 to 9. Each row, column and 3 × 3 box must contain every number exactly once. The starting clues stay fixed, so let them guide your next move.

Learn the rules, scoring and a few friendly tips →

A game that fits your day.

Choose Easy, Medium, Hard or Expert. Play a random puzzle or try the daily challenge. Use pencil notes to explore possibilities and a hint when you need a nudge.

Your games stay in this browser, including unfinished boards. New puzzles need a connection; a previously loaded game can be resumed offline after the site is cached.

Find your next little win.

One tap to your happy place.

Add PuzzleTempo to your home screen. It opens in its own window, just like an app.

  1. iPhone / iPad: Open this site in Safari, tap Share, then “Add to Home Screen”. Enable “Open as Web App” if shown.
  2. Android: Open this site in Chrome. Tap the browser menu, then “Install app” or “Add to Home screen”.
  3. Desktop: In a supported browser, use the install icon in the address bar or its app menu.

Visit Sudoku online once before playing a saved game offline. Fresh puzzles need an internet connection. Installation requires HTTPS, or localhost while testing.