Conducting Secret Diplomacy
Comments: see game: http://www.conquerclub.com/game.php?game=7228084
One of the players in that game has clearly invited others and I think there are two of them in there.
The comments are in the message log for the game.
There was also a really suspicious termination.
They don't use game chat but one of them is happy to guard his borders against a 14 pile with stacks of 2 - just look in the log.