Key idea
Sankaku Action and Reaction
After Uke turns prone following a throw, Tori reaches head-and-arm control. If the captured arm stays protected, seek stable upper-body control for ; if it separates, recognize the elbow-lock option . If Uke frees the head and arm or turns on top, recover position and select another available control. needs the legal head-and-arm enclosure, not an empty triangle. No neck crank; locks and chokes need event permission and immediate release on a tap, verbal submission, or .