The torpedo system is an ice hockey on-ice system first used by the Swedish team Djurgårdens IF. The coach of Djurgårdens IF, Hardy Nilsson, took the system with him and it was used extensively by the Swedish national hockey team in international competition. The system converts the traditional hockey layout of three forwards and two defensemen, into two torpedoes up front, two halfbacks, and one lone defenceman (or libero). The torpedoes are responsible for forechecking in the corners when the puck is in the offensive zone, and stay around the neutral zone to be sprung into a scoring position (by a stretch pass or torpedo pass). The halfbacks are all-purpose players that run the offense from the faceoff circles in the offensive zone, and defend against the other team's torpedoes. The libe