Also known as: double wrist lock · gyaku-ude-garami
Lying flat and trying to crank the arm from your back.
Why it failsYou have no leverage and they simply posture up and rip the arm free.
FixSit up onto your elbow and shoulder, get the angle, then rotate.
Letting them grab their own belt or their own leg.
Why it failsThe grip stops the rotation entirely and the position stalls.
FixAttack the grip first — bridge, use your leg over their back to break their base, or switch to the sweep.
Forgetting to control their posture while you set the grip.
Why it failsThey stand up with your grip attached and open the guard from above.
FixKeep a leg over their back or a hook that breaks their base while you build the figure four.