Sokan

Form VIII: Sokan was a form of lightsaber combat

Developed by the ancient Jedi Knights during the Great Sith War, Sokan combined tactics that allowed for evasion and mobility with the kinetic motions of Form IV combat. Sokan involved swift strokes of the lightsaber, which were aimed towards the opponent's vital areas in addition to quick tumbles and movements. Combatants made use of large amounts of terrain, trying to maneuver their opponents into vulnerable areas during the course of battles that involved Sokan techniques.

Obi-Wan employed elements of Sokan while dueling Anakin on Mustafar. Towards the end of the duel Obi-Wan sought the high ground and used his favorable positioning to defeat Anakin, attacking his weak points.