One Sudoku: Killer & Classic

One Sudoku brings classic Sudoku, Killer Sudoku and a fresh Daily Challenge together in one calm, uncluttered number puzzle game, with six difficulty levels and offline play. Take a short break with an easy Sudoku or settle into an expert challenge. Play at your own pace, use pencil notes to explore possibilities and pick up where you left off. SUDOKU, YOUR WAY • Choose Easy, Medium, Hard, Expert, Master or Extreme puzzles. • Master and Extreme are the hardest Sudoku puzzles: advanced techniques like XYZ-Wing, W-Wing and chains, never guessing. • Play Sudoku offline, wherever your day takes you. • Use pencil notes, hints, erase and undo when you need them. • Pause a puzzle and return to your saved game. • Enjoy a clear board in light or dark mode. KILLER SUDOKU Killer Sudoku adds cages: dashed shapes whose numbers add up to the small sum in the corner, with no number repeated inside a cage. Fewer clues, a little arithmetic and the same classic rules underneath. Easy, Medium and Hard. SUDOKU RESCUE A Sudoku for detectives. The board arrives mostly filled in, and some of those numbers are wrong. Find the mistakes, fix them and finish the grid. The original clues are always right. HAUNTED MANOR A spooky logic puzzle of its own. Place one ghost on every floor, in every hall and in every coloured room, and never let two ghosts touch, not even corner to corner. No guessing needed: Yumak can always show you the next step. FOR BEGINNERS AND EXPERTS ALIKE New to Sudoku? Start on Easy with a How to Play guide built into the app, and lean on pencil notes and hints while the patterns become familiar. Been solving for years? Expert boards ask for real technique, and the game gets out of your way: hide the timer, turn mistake checking off completely, or hold yourself to a three- or five-mistake limit. A DAILY CHALLENGE TO LOOK FORWARD TO • Solve a fresh Daily Challenge each day. • Build your solving streak, one puzzle at a time. • See completed challenges on your monthly calendar. PLAY RANKED When you want a puzzle to count for something, play Ranked. The board is chosen for you, a fast clean solve is worth more than a slow one, and hints and mistakes cost you rating. Climb through Bronze, Silver, Gold, Platinum and Diamond on your way to Master. SEE YOUR PROGRESS • Track best times, win rate and completed puzzles. • Explore your results by difficulty. • Earn 24 achievements as your solving improves. • View leaderboards and compare your results with other players. START PLAYING WITHOUT AN ACCOUNT Play as a guest. Sign in to back up your progress, sync across devices and take a ranked place on the leaderboards. Online features require an internet connection. HOW TO PLAY Fill the 9 × 9 grid so each row, column and 3 × 3 box contains the numbers 1–9 once. Classic Sudoku rules, satisfying logic, and room to keep learning. Make time for one more puzzle. ONE SUDOKU PREMIUM (OPTIONAL) Premium removes every advert and unlocks your monthly report. • Premium Monthly: auto-renewing subscription, 1 month • Premium Yearly: auto-renewing subscription, 1 year • Premium Lifetime: one-time purchase, does not renew The price for your region is shown in the app before you buy. Payment is charged to your Apple Account on confirmation of purchase. A subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the end of that period. Manage or cancel it in Settings › Apple Account › Subscriptions. A signed-in account is required to buy Premium; Restore Purchases works without signing in. Privacy Policy: https://www.onesudoku.co/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/