Zen Sudoku, reimagined

Classic Sudoku.
Real-time duels.

Daily puzzles, 1v1 ELO battles, 50+ achievements — all in one beautifully minimal Sudoku app.

  • 11Languages
  • 50+Achievements
  • 8Ranked Divisions

Everything you love about Sudoku, plus more

Built for relaxation — tuned for competition.

Classic Sudoku

4 difficulty levels — Easy, Medium, Hard, Expert. Clean minimal design to help you focus.

1v1 Live Duels

Real-time matches with ELO ranking — climb from Bronze to Champion through 8 competitive divisions.

Daily Challenges

A fresh puzzle every day. Complete the monthly calendar to earn exclusive trophies.

50+ Achievements

Unlock badges, frames, themes, and seasonal rewards as you master the game.

Smart Tools

Undo, Erase, Notes, Fast Notes, and Hints — the pro toolkit, a tap away.

11 Languages

English, Chinese, Hindi, Spanish, French, Arabic, Bengali, Portuguese, Russian, Japanese, Turkish.

Real-time 1v1

Race to the finish

Get matched instantly with a worldwide player near your skill level. Watch their progress live, feel the pressure of the clock, climb the ladder — Bronze, Silver, Gold, Platinum, Diamond, Master, Grandmaster, Champion.

  • Instant matchmaking — no lobbies, no wait
  • Balanced ELO gains (+15 to +50) so winning always feels rewarding
  • Practice against AI bots — Rookie, Pro, Master

Ready to play?

Free to download. No signup needed to start.

Download on Google Play

Coming to iOS soon.