To uninstall four-in-a-row just follow these instructions.
sudo apt-get remove four-in-a-row
This will remove just the four-in-a-row package itself.
sudo apt-get remove --auto-remove four-in-a-row
This will remove the four-in-a-row package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for four-in-a-row then this will work.
sudo apt-get purge four-in-a-row
Or similarly, like this four-in-a-row
sudo apt-get purge --auto-remove four-in-a-row
|Maintainer||Debian GNOME Maintainers <firstname.lastname@example.org>|
|Description||Four in a Row game for GNOME|