Ie Four-a-side badminton, Two in front, two at back. Both front players sorve, after first "side out", but back ones wait until their side is in again, when thoy change places with front playors. Either one front or one back pluyor may recoive bird, x x ax x x x x 10, Throc-a-side badminton, Two front, one back playor. Back playor may receive servico on cither side, as well as one in front, Servico samc as in doubles, except players shift counter- clockwiso for a turn aftor the side is "in" again, Some of the above items may be omittod, owing to lack of timo, Advanced Strokos,. : Forchand and backhand drivo, Overhead drop shot. Smashing round the head, Backhand smash, Drive service, : Any "trick" shots dosircd by playors,