Hello! I'm Pierre, and I'm here to help you with the Magic Jigsaw Puzzles app freezing issue on your Mac.

Let's try a step-by-step approach to tackle this issue:

1. Restart Your Mac: Sometimes, a simple restart can resolve app performance issues. Give this a try first.

2. Check for App Updates: Ensure that Magic Jigsaw Puzzles is updated to the latest version. You can do this by opening the App Store, going to the 'Updates' section, and checking for any available updates for the app.

3. Free Up Space: Make sure you have enough available storage on your device. The app might require additional space to function smoothly, at least 1GB of free space as a general rule 3.

4. Reinstall the App: If the problem persists, try deleting the app and reinstalling it from the App Store. This can often resolve issues with freezing as it resets the application's configuration.

5. Contact Support: If none of these steps resolve your issue, consider reaching out directly to Magic Jigsaw Puzzles support at [email protected] for more personalized assistance.

Try these steps and let me know how it goes. Are you satisfied with the solution I provided, or would you like further assistance?