Connect Four, also known under non-proprietary names, is commonplace in many U.S. households. Taking turns dropping discs into a vertical grid, players attempt to form a line of four discs in their color. While the game has long been mathematically solved, meaning that the first player can always win with the correct moves, the game remains popular. It may teach the youngest kids hand-eye coordination and pattern detection, and it underscores the benefits of thinking ahead. Whatever the benefits, kids of a certain age enjoy the game, and parents have found plenty of reasons to like it, too.