Sudoku - Classic Sudoku Puzzle

Aug 24, 2020

1. When the same selected number is highlighted, the same number in the candidate will also be highlighted
2. Custom input adds text input, copy and paste input, custom input does not need to see ads!
3. Add error checking function and switch, you can check whether there is an error in real time when doing the sudoku(switch in the setting)
4. New games and levels are unlocked without ads
5. Add a beginner difficulty