Hi there! I understand your Sudoku.com app is suddenly filling in all the solutions for you, which takes away the solving challenge. Let’s try to get this sorted out together.

To clarify first, when you say it's "auto-filling," do you mean the app is automatically showing all the completed answers on your Sudoku puzzles as soon as you start or during gameplay? Or is it filling in notes or hints for you automatically?

A couple of things we can check:

1. Check Auto-Note Settings: Sometimes, Sudoku apps have an auto-note or autofill pencilmarks feature that can fill in candidate notes (possible numbers for cells), but not usually full solutions. Make sure this feature isn’t enabled to mistakenly fill in solutions. On iPhone iOS 18.7, open the Sudoku.com settings inside the app and look for options like “Auto-Note,” “Pencilmarks,” or anything related to autofill, and try toggling those off.

2. Restart the App: Close the app completely and reopen it. Sometimes settings glitches clear up with a restart.

3. Reinstall the App: If the issue persists, try uninstalling and reinstalling the Sudoku.com app to ensure a clean install without corrupted data.

4. Check for Updates: Make sure you have the latest version of the Sudoku.com app installed. Developers sometimes push fixes for such issues.

5. Account Sync: If you are logged in, check if syncing with an account or cloud backup is restoring previous game states unintentionally.

If none of these steps help or you don’t see any related settings that cause full solution auto-fill, please let me know more details such as when this behavior started, and if it happens on all puzzles or just specific levels.

Are you okay with walking through these steps? I want to make sure your Sudoku experience is just as engaging as it should be!