1 person under the post is a passer (close to the post)
In front is an attacker with defender who runs from left to right at about 5 to 6 metres
Attacker plays the ball to the attacker (defender makes this difficult)
Attacker throws the ball back to the attacker and moves widthways again (you can move right twice as long as you stay at 5/6 meter from the post)
Team captain plays the ball to the attacker again
Defender chooses whether to block the shot or not
Attacker has to make the (right) choice to shoot himself or play the ball to the back-rower for a shot (if the ball is played to the back-rower, the defender tries to hinder this as well as possible)
Possible sequel: when the attacker plays the ball to the moving reinforcer, he does not shoot but the attacker makes a walkthrough ball
A possible 4th person can also defend the defender