Sudoku - Classic Number Puzzle

Learn Sudoku step by step with SuperSudoku, a classic 9x9 Sudoku puzzle game built around clear logic. Start with easy Sudoku for beginners, play offline and follow hints that explain the reasoning behind each step. An interactive tutorial helps you learn Sudoku offline and put the rules into practice. Each puzzle is a chance to spot a pattern, test a deduction and understand your next move. Learn the rules, then practice The Sudoku tutorial introduces rows, columns and 3x3 boxes through simple interactions. Fill each with the numbers 1 to 9 without repeating a digit. Practice placing a number, recording notes and following a hint before continuing with a complete puzzle. Learn Sudoku techniques as you play. Step-by-step hints explain what to observe, the evidence behind a deduction and the result. Highlighted cells and candidates help you follow the reasoning. Review the highlighted board and explanation, then apply the suggested step when you are ready. Explore techniques such as singles, pairs and X-Wing patterns as the puzzles become more demanding. The clues stay connected to the board, helping you see which cells matter and why a deduction works. Practice recognizing the reasoning behind a move as well as placing the digit. Five difficulty levels to grow with Explore Beginner, Easy, Medium, Hard and Extreme. Your starting options reflect the experience you select, and completing different puzzles opens tougher levels. Begin with direct placements, then work toward pairs, candidate eliminations and deeper logical chains. For a longer challenge, play hard Sudoku offline and take time to work through the possibilities. Extreme Sudoku adds more demanding deductions as you progress. Choose an available level that suits the kind of session you want. Offline puzzles for a quiet break Enjoy a Sudoku game offline on a commute, during a trip or in a quiet moment at home. The core game runs on your device, so you can solve number puzzles without an internet connection. Your unfinished board is saved automatically, ready for you to continue later. Pause when you need a break and resume when you are ready. The timer records your solving time without turning the puzzle into a countdown. A short session and a thoughtful, longer solve can both fit your day. Tools that support your reasoning - Write pencil notes to keep track of possible numbers. - Enable automatic clearing of related notes after placing a digit. - Undo and redo moves when you want to reconsider a choice. - Highlight related cells and matching numbers to read the board more easily. - Check answers, highlight conflicts or switch off automatic checking. - See how many of each digit remain to be placed. Keep playing while you correct mistakes. A wrong entry does not end the game, giving you room to reconsider a move and try another approach. Make the board comfortable Choose light mode, dark mode or a theme that follows your device. Personalize the accent color and select standard, large or extra-large board numbers. Adjust sound and vibration to suit your surroundings, whether you prefer a quiet puzzle or feedback as you play. See your progress View completed puzzles, win rate, best times and average times by difficulty. Use your own results to follow your progress and decide when to attempt a harder board. Classic logic, a focused experience If you enjoy number puzzle games and logic puzzles, SuperSudoku keeps the experience centered on the board. Learn the basics, explore a technique through an explanation or settle into a challenging puzzle. Beginners and returning players can practice at their own pace.