Cho sun

Cho sun was one of the nine marks of lightsaber combat. It was a strike which removed the target's entire weapon arm (unlike cho mai, which removed only the weapon hand). It was less precise but more common than cho mai.

Notable uses
When Breek Zagrev dueled Kasavo Shei on Mandos, she first amputated one of the 's, then used the moment of distraction to cut off Shei's sword arm as well.