Gym class drill: hokbal

The teacher chooses a referee.
The referee must throw the foam ball to all the runners.
When a runner is finished, he has to stand in the box behind the bench.
A runner can get free by throwing the korfball over with a runner who is not yet finished.
If the ball is thrown back and forth without touching the ground, the runner is free again.
When all tokens are gone, the referee wins and a new referee comes in.
If after 3 or 4 minutes not all tokens are thrown, there will be a new token.

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Maximum number of players

Banks

Foam balls