This one struck at my head, and I beat his sword aside, so coming to this position. Also, I will make you turn, for having not failed at this I will put the sword to your neck, I am so audacious.
The 10th scholar of sword in one hand gives a variation on breaking the thrust, as described by the 10th scholar of the 2nd master of sword in two hands, as well as combining several other elements. From the master play, the text says you are defending against a strike to the head. Regardless of the exact attack, your initial cover is essentially the same. Only the height of your inital beat will vary to match the attack.
Slide your right foot across to open up your hips, and with a riverso cut, move your sword through posta frontale, sweeping the attack to your right. Step through with your left foot, continuing to sweep the attack down to the ground.
As your left foot lands, shuffle your right foot up to step on the tip of your opponents blade, similar to the 11th and 12th scholars of the 2nd master of sword in two hands. Reach out with your left hand to catch your opponents elbow, and in a smooth continuous movement, carry your own sword up into posta di fenestra. This is the moment shown.
Your right hip will have slightly throughout this and is well chambered. Push the right hip forward and use it to power shoving your opponents elbow across their body, turning them to the right. The combination of the elbow push and the leverage of the sword tip will pull the weapon from their hand, causing it to snap down to the ground.
Fiore says ‘I will put the sword to your neck.’ One interpretation would be to use the right hip push which powered the elbow push to simultaneously drive the point in a straight line through your opponents neck.
A second interpretation would be to use that hip push to lunge your left foot behind your turning opponent. Throw your sword blade in front of their neck, and catch it with your left hand. Pivot on the ball of your left foot, arcing your right foot behind you, simultaneously cutting your opponents throat and throwing them backwards and to your right, as shown by the 7th scholar of sword in one hand.