Sudoku Coach: Killer & Jigsaw

Thirteen ways to play Sudoku — Classic, Killer, Jigsaw, Diagonal and more, all in one app. The rules are simple, the logic runs deep. Whether you have five minutes or an hour, pick a grid and start solving. Every puzzle is generated with a guaranteed single solution, so you never have to guess and you never run out.

🧩 SEVEN VARIANTS INCLUDED
• Classic 9×9 — the Sudoku you know and love
• Killer Sudoku — cages and sums, no starting digits
• Jigsaw Sudoku — irregular regions instead of 3×3 boxes
• Diagonal Sudoku — both main diagonals must also hold 1–9
• Mini 4×4 and Mini 6×6 — quick grids, easy for beginners
• Ice Breaker — a fresh twist on the classic rules

📈 FIVE DIFFICULTY LEVELS
Start at Beginner and work your way up to Expert. Each mode is tuned to your skill — from easy 50-clue puzzles to hard 24-clue challenges that genuinely test your logical thinking. Advanced players will find plenty here to master.

📅 DAILY SUDOKU CHALLENGE
A brand-new puzzle every single day. Track your progress on the monthly calendar, keep a completion streak alive, and see if you can clear a whole month.

🎓 LEARN THE TECHNIQUE, NOT JUST THE ANSWER
Stuck? The built-in coach does not simply fill in a cell for you. It names the technique that applies — Naked Single, Hidden Pair, Locked Candidates, X-Wing — and walks you through the reasoning step by step, so next time you spot it yourself. Use it to move from guesswork to real method, at your own pace. It runs entirely on your device.

✏️ SMART GAMEPLAY TOOLS
• Pencil marks — note candidate numbers in any cell to plan ahead
• Unlimited undo and redo — step back as far as you need
• Smart hints for when you want a nudge
• Auto-save — leave anytime and resume exactly where you stopped
• Mistake tracker — up to 3 slips per puzzle, so play carefully
• Highlighting for rows, columns, boxes and matching digits
• Remaining count for every digit

📊 DETAILED STATISTICS
• Games played, won and win rate for each difficulty
• Best and average time per difficulty
• Current and all-time best streaks
• Personal bests with the date you set them
• Weekly activity breakdown

🎨 EIGHT THEMES
Pastel, Classic, Dark, Ocean, Sunset, Forest, Lavender and Midnight. Clean Material Design 3 layouts, smooth animations and comfortable colour throughout — perfect for long sessions and easy on the eyes.

📵 PLAY ANYWHERE
Every puzzle is generated on your phone, so the whole game works without a connection — on a plane, on the underground, anywhere at all. Add the daily puzzle widget to your home screen, or start a game straight from the Quick Settings tile.

♿ BUILT FOR EVERYONE
Colour-blind palettes (Protan, Deutan, Tritan), a dyslexia-friendly symbol set, a one-handed control arc and a cognitive-ease preset.

⭐ PREMIUM
Unlock six more variants — Mega 16×16, Hyper, Samurai, Colour, Shape and Narrative Sudoku — plus every theme and an uninterrupted experience.

✅ MORE FEATURES YOU'LL LIKE
• A real-time timer to track your speed
• Separate save slots for every difficulty
• Restart any puzzle to try a fresh approach
• Import a puzzle from a friend, or send one back

Sudoku keeps your mind sharp because it rewards patience over speed. Whether you solve one grid a day or ten, it is a calm, satisfying way to train logical thinking. Millions of players enjoy the classic number puzzle — this is the version that also teaches you to get better at it.

Download now, start with Classic, and find out which variant becomes your favourite.