Hi there! I understand your Jigsaw Puzzles app won’t open on your Windows device running WebKit, and I’d love to help get that sorted for you. To start, can you tell me if you see any error message when you try to open the app? Also, have you recently updated the app or your Windows OS?

In the meantime, here’s a step-by-step approach to troubleshoot this issue:

1. Check for Updates: Ensure your Windows 10 is fully updated. Sometimes apps won’t open if the operating system needs an update. You can do this by going to Settings > Update & Security > Windows Update and installing any available updates.

2. Close Other Applications: Sometimes other apps running in the background can interfere. It’s good to close all open programs. Press Ctrl + Shift + Esc to open Task Manager, check for any applications that might be using a lot of resources, and close them.

3. Restart Your Computer: This refreshes system processes and can resolve many launch issues.

4. Reinstall the Jigsaw Puzzles App: If the above doesn’t help, try uninstalling and then reinstalling the app. This will clear any corrupt data potentially causing the crash.

Do you need help with any of these steps? If you’ve tried some already, let me know which ones so we avoid repeating them and dig deeper!

Are you satisfied with this initial solution so far?