Sudoku Classic
Puzzle
About Sudoku Classic
Sudoku Classic is the number puzzle many people know. Fill the 9x9 grid so every row, column and 3x3 box contains the numbers 1 to 9 exactly once.
How to play
Tap a square, then pick a number. Use the notes option, if available, to write small candidates.
Tips
- Start with rows, columns or boxes that already have many numbers.
- If you are stuck, look for a number that can only go in one place.
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