Help and support
Common questions
- Do I need an account?
- No. Progress is saved on this device. Sign in to keep it across devices; your guest progress is moved into your account the first time you sign in.
- A level won't open.
- Free levels open in order: solve 3 different puzzles at the level before. Premium opens every level.
- How do I cancel Premium?
- On your account page, choose Manage subscription, or use the link in your Paddle receipt. Premium lasts until the end of the period you paid for.
- I think a puzzle is wrong.
- Every board is checked by a solver before publishing, but tell us the puzzle ID (for example SUDOKU-L05-003) and we will review it.
Contact
Email chowchowbuy@gmail.com. Include the puzzle ID if your question is about a puzzle.