A visual diagram explaining the core principles of priority in a longsword exchange, based on the official FEBUS rules.
An exchange begins when one fencer takes the initiative with a valid offensive action (Attack / Vorschlag).
A direct, uninterrupted offensive action with the arm extending towards an open target, supported by footwork. This establishes priority. Source
An attack initiated with feints to provoke a parry, creating a new opening. Priority is maintained if the action is continuous and threatening. Source
An attack that first takes control of the opponent's blade (e.g., a Beat Attack or a Bind) to create a safe opening for the final offensive action. Source
Once an attack has priority, the defender must respond. Their choice determines the outcome.
The defender correctly parries the attack and *immediately* launches a counter-attack (riposte) without hesitation. Priority is transferred to the defender for the riposte. Source
The defender ignores the incoming attack and launches their own, resulting in a double hit. This is a fault. Priority remains with the original attacker, who is awarded the point. Source
Certain actions can preempt or alter the flow of the exchange.
A static threat with the point aimed at the opponent. An attacker *must* first deflect the blade before their own attack can gain priority. Running onto an established point is a fault. Source
An attack that takes priority by exploiting the opponent's preparation (e.g., a wide wind-up, a step without extending the sword, or a grip adjustment). Source
A counter-attack that hits before the opponent begins the *final* movement of a compound attack. Timing is critical for the Stop Hit to gain priority. Source
Test your knowledge. Describe a fencing exchange below and let our AI referee analyze it based on the official FEBUS rules.