Here's a breakdown of their subgenres:
* Bridge: A trick-taking card game. It's known for its strategic bidding and complex play.
* Happy Families: A matching card game. It's a simpler game that involves collecting sets of four cards with matching images.
* Snap: A matching card game. It's a fast-paced game where players race to spot matching pairs of cards.
While they are all card games, they differ significantly in their gameplay, complexity, and number of players.