Sudoku.city: Classic Puzzle

Sudoku.city is a comprehensive sudoku puzzle app featuring a vast collection of unique number puzzles, daily challenges, and smart hints designed to teach you real solving techniques. 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. 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. Download Sudoku.city today and start your daily brain training with our logic-based number puzzle game!