How do you exit Gold Saucer games?

[Aylis]

Tried the Mahjong game to get the challenge credit.. Not trying to win. just clicking stuff at random in the novice match.
Problem is that there's no sign of an end. It just keeps running new rounds, I ended up missing two gates before I gave up and end-tasked the game engine.

I had the same issue when I first tried it and learned an average game of mahjong can last well over an hour. I didn't want to do anymore and couldn't find an exit so I had to ctrl+alt+del and force close FFXIV to get out of it.