Sudoku Classic - Number Puzzle
Thuan Nguyen / Inhouse
About this game
- Age 10
- Updated Nov 17, 2025
- OS IOS / Android
Editor reviews
Sudoku Classic - Number Puzzle delivers a clean, authentic Sudoku experience for all skill levels. Tackle handcrafted 9x9 boards with intuitive controls, pencil marks, undo and redo, and optional error checking to keep your progress on track. Use logic-based hints to learn smarter strategies, track your stats to measure improvement, and enjoy daily challenges that keep your mind sharp online or offline.
Screenshots
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How to play:
1. Choose a difficulty and start a 9x9 puzzle tailored to your skill level.
2. Fill each row, column, and 3x3 box with numbers 1 through 9 without repeating any number.
3. Add pencil marks to note candidate numbers in empty cells and refine them as you deduce.
4. Tap Hint to receive logic-based guidance when you are stuck without revealing the whole solution.
5. Toggle error checking, use undo and redo to adjust moves, and apply strategies like singles and elimination.
6. Complete daily challenges, beat your best times, and track statistics to improve over time.