F.C. Christmann - How to Abfangen with the saber

Abfangen is one of the techniques in the “Theoretisch praktischen Anleitung des Hau- Stoßfechtens“ which is not that good described as the most others in the book. If HEMAists ask me questions about Christmann, one is: “how did the Abfangen work?“ Thats the answer. Edit: it is “rendez garde“