Built by Data Spec since 1996 • Coming to Google Play
📱 Free Android Game — One Small Banner Ad, No Sign-up

Classic Sudoku
Puzzles, One Solution Every Time.

Game of Sudoku is a clean, free Sudoku game for Android with Easy, Medium and Hard levels. Every puzzle is checked so it has exactly one solution, mistakes light up as soon as a number clashes, and counters show what is left to place. One small banner ad, no sign-up, no in-app purchases.

Everything a Sudoku Game Should Have

Simple to start, fair to play, careful about the details.

Exactly One Solution, Every Time

Every puzzle is run through a solver before you see it, so there is always one correct answer and never a need to guess. The given numbers are laid out symmetrically, so the grid always looks balanced.

Easy, Medium and Hard

Pick a level and tap New. Easy gives you the most numbers, Hard the fewest. A counter shows how many cells are still empty, and the digit counters show how many of each number are on the board.

Clash Highlighting

Put a number where it clashes with its row, column or 3x3 box and it turns bold pink straight away, so mistakes do not snowball. Play fully offline, with no account needed.

See It in Action

Screenshots from the Android app.

Medium puzzle with the number pad A game in progress with a clashing number in pink An Easy puzzle with more given numbers A Hard puzzle with fewer given numbers

One Small Ad. No Sign-up. No Purchases.

Game of Sudoku is free because of one small banner ad at the bottom of the screen, served by Google AdMob. It never covers the grid and never interrupts a game. Where the law asks for it (EEA and UK) you are asked for consent first.

🧩 One Small Banner Ad 💳 No In-App Purchases 🔒 No Personal Data Collected by the Game 📶 Plays Offline 👤 No Account or Sign-in

The ads are provided by Google AdMob, which may use your device's advertising ID and other device data to serve and measure them. Read the privacy policy for details.

Frequently Asked Questions

Ready to Play?

Free to install, no sign-up, one small banner ad. Coming to Google Play.

Download on Google Play