Sudoku Challenge- Free Classic

Our free Sudoku app has an intuitive interface, easy-to-control layout, clear layout and a balanced difficulty level for beginners and advanced players. It can not only kill time, but also help you think, make you more logical and have a better memory.
Game Features
✓ Four Sudoku game modes!
✓ Thousands of free Sudoku puzzles!
✓ Intuitive game interface!
✓ Simple game tool!
✓Clear game layout!
More features
-Daily challenges. Complete daily challenges to collect trophies.
-Statistics. Track the progress of each difficulty level: analyze your best time and other achievements.
-Undo. made a mistake? Just undo the operation quickly!
-Erase. Eliminate all errors.
-Note. I don't know which one to fill in? Just record all possible numbers!
-Help. Find a breakthrough quickly when you encounter difficulties.
-Timer. Open or hide the game time.
-Auto save. If you leave while Sudoku is not finished, it will be automatically saved and you can return to continue the game at any time.
- highlight. Turn on/off highlighting of the same number.
-Highlight error values. Turn highlighting error values on or off.
-Automatically delete notes. Once the numbers are placed, the notes are automatically deleted from all columns, rows and blocks.


Game highlights
Classic Sudoku Intellectual Adventure.
From simple to difficult, gradually challenge.
Different difficulty fun upgrades.
Challenge record at a glance.
Easy operation, take notes at any time.
Undo and restore unlimited times.
Successfully challenged to win a trophy.