All the pupils are seated except one. The odd player walks or runs
through the aisles, touching some player, and runs around the room
in the direction he is going. The one touched immediately leaves his
seat, and runs around the room in the opposite direction. The first
one back in the empty seat wins.
Dodging through the aisles to shorten the distance is not allowed. The
run must be around the outside of the room.
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