F.A.Q.
- How do I use hints?
- How do I remove ads?
- How do I make notes?
- How do I change the difficulty level?
- How do I erase all the numbers and notes that I've entered?
- Why do the numbers I enter look so small?
- How do I delete a number entered by mistake?
- How do I know that a certain number has been placed in all the necessary cells?
- How do I know that the sudoku is solved correctly and complete?
- I think some of the sudoku cannot be solved. The numbers can't fit in correctly.
- How points are calculated?
- How do I change the language?
- How do I disable sound effects?
- How do I change the background theme?
- How do I transfer my progress to a new device?
- Privacy rights and options