Sudoku All in One Pro

Over ten thousand Sudoku puzzles with smart input and one-tap solving. Trains your brain, improves logical and mathematical thinking, and challenges you anytime, anywhere.
6 difficulty levels: Kids, Easy, Standard, Hard, Expert, Extreme. Suitable for everyone from beginners to professionals.
- Massive puzzle library: 10,000+ classic Sudoku puzzles, regularly updated with no repeats
- No ads: Clean experience without pop-ups or interruptions
- Millisecond-fast solver: Automatically calculates answers quickly to avoid getting stuck
- Smart input control: Automatically filters wrong numbers for accurate, efficient typing
- Dual marking: Supports confirmed and doubtful marks for clearer reasoning
- Smart memo: Lets you jot candidate numbers in each cell to assist solving
- One-tap controls: Restart, clear, keep memos, or full reset with one tap
- Powerful undo: Quickly reverses mistakes for easy correction
- Smart alert: Warns before clearing memos to prevent accidental loss
- Auto-save: Automatically saves progress, timer and memos when exiting; fully restores when resumed
- Smart hints: Toggle on/off freely, beginner-friendly and clean for experts
- Auto-brightness: Adjusts automatically during play and standby to protect eyes
- Share: Ask for help on hard puzzles or share achievements easily
How to play Sudoku: Fill the empty cells with numbers 1–9, with no duplicates in each row, column, and 3×3 box.
Feedback email: 283784210@qq.com