Sudoku starts easy. How far can you go?

Go from relaxing Easy puzzles all the way to Absurd challenges built for experienced solvers. With 8 truly different difficulty levels, smart hints that teach you the logic, advanced solving techniques, daily challenges and more, this is Sudoku designed to grow with you.

🧩 8 DIFFICULTY LEVELS — EASY TO ABSURD

Easy, Medium, Hard, Expert, Master, Diabolical, Infernal and Absurd.

Start with classic Sudoku puzzles at your own pace, then work your way up to challenges that demand increasingly advanced logic. Higher difficulties are built around real solving techniques — not simply puzzles with more empty cells.

Think Expert is hard? Keep going.

💡 SMART HINTS THAT ACTUALLY TEACH

Stuck? A hint doesn't simply reveal the answer.

The smart hint system analyzes the current board, identifies a solving technique you can use next, and highlights the relevant cells and candidates so you can understand the logic yourself.

Learn to recognize patterns instead of depending on answers — and spot them on your own the next time.

🧠 MASTER ADVANCED SUDOKU TECHNIQUES

As the difficulty increases, so does the logic.

Learn and practice techniques including hidden pairs, locked candidates, X-Wing, XY-Wing, Swordfish and more.

Whether you're learning advanced Sudoku or already know your wings and fish, the highest levels are designed to give experienced players a real challenge.

📅 A NEW SUDOKU CHALLENGE EVERY DAY

Solve a fresh Daily Challenge and keep your streak alive.

Complete the 7-day cycle to earn extra coins and see how long you can keep going.

🏆 48 ACHIEVEMENTS TO UNLOCK

Progress from Bronze to Diamond by solving puzzles, building streaks, mastering techniques and completing special challenges.

There is always another goal waiting beyond the next puzzle.

🎨 3 DISTINCT VISUAL THEMES

Make Sudoku feel like yours with three complete visual styles:

• Classic — clean, bright and focused
• Observatory — a relaxing dark theme made for nighttime solving
• Washi — warm, natural and inspired by paper

These aren't simple color swaps. Each theme gives the board its own visual identity.

✏️ EVERYTHING YOU EXPECT FROM A GREAT SUDOKU GAME

• Notes and candidates
• Undo
• Auto-save
• Statistics for every difficulty
• Best times
• Mistake tracking
• Smart hints
• Daily challenges
• Achievements

📴 PLAY OFFLINE, AT YOUR OWN PACE

No internet? No problem.

Play Sudoku offline whenever you want, with no pressure and no timer forcing you to rush.

Ads are optional and can be watched to earn coins. If you prefer an ad-free experience, you can remove ads completely with a one-time purchase.

From your first puzzle to advanced Sudoku techniques, there's always another level to master.

Easy. Medium. Hard. Expert. Master. Diabolical. Infernal.

Absurd.

Think you can reach it?