Like contract Bridge, there is always a Dummy which adds a lot of strategic depth. The Dummy is played via a very simple automata that players can leverage against the other players. This game is not teams, but is basically everyone against the Declarer. It also contains a doubling step pre-play that pulls in some of the strategy of vulnerable/double/redouble from Bridge. It uses a larger deck size similar to Bridge so you have a lot of information about what remains when trying to make your contract and make others miss theirs.