Sudoku.city: Classic Puzzle

Looking for a clean, no-nonsense sudoku game? Sudoku.city is a free number puzzle game with a huge collection of unique sudoku puzzles, daily challenges, and smart hints that actually teach you how to solve - not just hand you the answer.

Whether you're a sudoku beginner or an expert solver, Sudoku.city offers a tailored brain training experience with 5 difficulty levels - from easy sudoku puzzles to expert-level challenges that will test your logic skills.

WHY SUDOKU.CITY?
- Clean, focused design - nothing gets between you and the puzzle
- Hints that teach real solving techniques, not just answers
- Every puzzle has one unique solution, always solvable by pure logic
- No sign-up, no login - just open and play
- Available in more than 20 languages

EXTENSIVE PUZZLE COLLECTION
Play unique sudoku puzzles with fresh content added regularly. Enjoy a satisfying and fair solving experience with number puzzles carefully crafted for every skill level.

5 DIFFICULTY LEVELS
- Beginner: Learn sudoku rules and basics
- Easy: Relaxing puzzles for everyday brain training
- Medium: A balanced challenge for regular puzzle solvers
- Hard: Test your advanced logic and sudoku strategies
- Expert: The ultimate challenge for sudoku masters

DAILY SUDOKU CHALLENGE
Take on a brand-new sudoku puzzle every day! Track your streaks, earn medals, and compete with yourself. Collect monthly trophies and monitor your progress on the challenge calendar.

SMART HINTS THAT TEACH
Our hint system goes beyond giving answers—it teaches you sudoku solving techniques step-by-step:
- Last Empty Cell & Last Remaining Cell
- Naked Single technique
- Visual explanations with highlighted rows, columns, and boxes

TRACK YOUR PROGRESS
- Detailed statistics for each difficulty level
- Personal best times, win rates, and accuracy
- 8 unique achievements to unlock (Speed King, Perfect Game)
- Monthly trophy collection for daily challenge streaks

FEATURES YOU'LL LOVE
- Notes/pencil marks for candidate numbers
- Unlimited Undo moves during gameplay
- Dynamic scoring with combo multipliers
- Clean, modern design with Light and Dark themes
- Sound effects and haptic feedback

GLOBAL LANGUAGE SUPPORT
Play in your preferred language! Sudoku.city supports English, Korean, Japanese, Chinese, Spanish, French, German, Italian, Russian, and more than 20 languages.

PRIVACY FOCUSED
Jump straight into the game—no sign-up or login required. Your progress is saved locally. We value your privacy with no unnecessary tracking.

FREQUENTLY ASKED QUESTIONS

Is Sudoku.city free?
Yes. Every sudoku puzzle and daily challenge is free to play.

Do I need an account?
No. There is no sign-up or login. Just open the app and start solving.

Are the puzzles solvable without guessing?
Yes. Every sudoku puzzle has one unique solution and can be solved with pure logic.

Which difficulty should I start with?
Beginner or Easy if you are new to sudoku. Medium or Hard if you solve regularly. Expert if you already know advanced sudoku strategies.

Does it work on tablets?
Yes. Sudoku.city adapts to phones and tablets with a responsive board layout.

Download Sudoku.city today and start your daily brain training with our logic-based number puzzle game!