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Badminton is a racquet sport played by either two opposing players ( singles ) or two opposing pairs ( doubles ), who take positions on opposite halves of a rectangular court that is divided by a net.
Players score points by striking a shuttlecock with their racquet so that it passes over the net and lands in their opponents ' half of the court.
Each side may only strike the shuttlecock once before it passes over the net.
A rally ends once the shuttlecock has struck the floor, or if a fault has been called by either the umpire or service judge or, in their absence, the offending player, at anytime during the rally.

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