Zone 1 - the head Zones 2 and 3 - the right and left arms and sides, respectively. Also refers to the right and left sides of the front torso. Zone 4 - the torso, specifically the back. Zones 5 and 6 - the right and left legs, respectively.
Zones 2 and 3 - a vertical parry, with the lightsaber handle held near the chest or waist, and the blade pointing upwards. Less commonly, a drop parry (blade points downwards) with the handle held near the head. Zone 4 - a drop parry with the handle held behind the head. Zones 5 and 6 - a drop parry with the handle held near the waist.