There are five positions: North, South, East, West, and Central
There are six professions: Target, Guard A, Guard B, Striker A, Striker B, and Referee.
Target: The Target is always in the Central position. His objective is to not get attacked by the Strikers. The Target can choose to face one position
Guards: The objective of the Guards is to stop the Strikers from hitting the Target. They can choose to defend the Target from the North, South, East, or West.
Strikers: The objective of the Strikers is to hit the Target. They can choose to attack the target from the North, South, East, West.
Referee: The Guards and the Strikers send their positions to the Referee via PM. The referee then posts the results on the thread.
If a Guard and a Striker choose the same position, the attack is blocked.
However, if a Striker chooses a position that is not chosen by a Guard, the attack hits the Target.
If both of the attacks are blocked, the Target and Guards win.
If one of the attacks is blocked, but the other hits, the remaining Guard and Striker repeat.
If, in this case, the Striker and the Guard choose the same position, the Target and Guards win.
If the Striker chooses a different position than the guard, the Strikers win.
If both of the Strikers connect with the target, the Strikers win.
If the Striker attacks the Target from the position the Target is facing, the attack is cancelled.
For the next game, the positions would rotate in the order Target>Guard>Striker>Referee>Guard>Striker. I would be the Referee for the first round, to clarify the rules.