When playing open guard, your opponent gets the double underhook. First, insert your arm under their arm and grab your opponents shoulder. Push their head to the side with your free hand, and step your leg over their neck. This will prevent your opponent from posturing up. Next, extend your right leg. Your arm goes to your opponents elbow. Clasp your hands palm up and palm down, step on your opponents hip. Break your opponents grip and pull their arm to your chest. Slightly shrimp out while putting pressure on the elbow making sure that your opponents palm faces the ceiling. Your opponent will tap to the pressure on their shoulder and elbow. (If your opponent straightens their arm, lock their wrist between your neck and shoulder, shrimp out, come up and start to put pressure on the elbow. You may also grab the elbow to create pressure.) If your opponent drives forward and tries to escape their head, allow them to do so by releasing the leg around their neck. Cross your opponents arm and immediately grab your shin and lock up the triangle. The arm that goes around your leg goes palm down, clasp your other hand and squeeze. Another option is to pull your opponents head down while raising your hips. In either situation, your opponent will tap to a triangle choke.