Rallying
After the serve both players are free to move about the court, and should do so to cover the entire court as best as possible. The goal of the rally is to hit the shuttle as to prevent it from striking the floor on an individual’s side of the court and instead cause it to contact the floor on the opponent’s side.
The point can also be won if an opposing player is struck by the bird, hits the shuttle into or under the net, hits the birdie out of the play area, or if the shuttlecock is contacted twice by one or both of the players.
The winning pair is the team that scores 21 points first, or if the difference in score is less than two upon reaching 21, the first pair to achieve a lead of two points.