I owned the whole map you nubz. Whens the last time you had every single country.
When an opponent (such as a surrendered/booted player which turned into an AI) didn't surrender and there was no other way to end the game than to eliminate them entirely; this is (especially against the AI, since it has a preference for attacking neutrals) not unlikely to mean having to conquer the whole map...
Honestly, that image is in no way a sign of skill; if it says anything about skill at all it's about your opponent's (very lacking) skill of knowing when to surrender.
Thank you for demonstrating the proper way of linking a game.
Thank you for not linking a game, dated after the start of this thread, on the Duel map. ;)