Seems like some obsession name ( ends with mania)
btw is france germany austria hungary romania serbia
It's the correct map.
-When Italy and Slovenia unite, a part of the Slovenian-Austrian border gets removed.
-When Switzerland and Austria unite, Liechtenstein is gone.
-Vatican City / Holy See, San Marino and Monaco don’t exist.
-If a merge like in my game (Belarus, Ukraine | Ukraine, Russia) forms, the Russian-Belarusian border doesn’t disappear. Also Crimea gets left out in a Ukraine-Russia.
Furthermore it is impossible to program that if A,B and B,C are merged, then A,C should be merged. These are 3 different answers, so there's no way for the game to work out the extra step.
I did fix the Crimea and Italy-Slovenia issue though, thanks.