D’Arce Choke from Shihō Nage (On One-Knee)

Uke strikes Yokomen Uchi. Tori enters to the inside, stepping with his rear leg, parrying with the rear hand while delivering an atemi with the lead hand. He executes a Tenkan pivot at a 90° angle relative to Uke’s feet. Tori then seizes Uke’s arm with both hands, lowers it, raises it overhead, pivots, and cuts with the arm to perform a Shihō Nage, releasing the rear-hand grip during the cut. Uke falls on his back, but the inertia of the movement and Tori not following the cut fully allows Uke to roll under his arm and end up on his knees. From this position, Tori drives down to one knee with his rear leg, pulls Uke’s hand (still held from the Shihō Nage), and drops his shoulder to thread his free arm under Uke’s armpit across the neck, securing the back of Uke’s head. He then releases the arm still held, places its elbow over the back of Uke’s head, and grips his own bicep with the other hand (the one already on Uke’s head) to lock the D’Arce Choke. If Tori’s head is close to Uke’s shoulder and his arm deep under the neck, he can apply the choke while remaining on one knee, without needing to fall onto his side; otherwise, he may fall onto his side to secure the lock more easily, as in the classic D’Arce Choke.