I will offer one. Taegeuk sajang:
Taegeuk Sajang opens facing north in junbi seogi (ready stance) and then facing left (west) and stepping with the left foot into dwi seogi (back stance) while executing sonnal makki (knife hand defense). This is followed by executing nullo makki (pressing block) with the left hand and stepping with the right foot and executing pyonsonkkeut sewotzireugi (spear hand thrust) to the solar plexus with the right hand. The taekwondoin then turns around 180 degrees (east) and repeats the same techniques but with the opposing hand and leading foot.
The knife hand defense is against a punching attack.
1. If the attacker is punching with the left hand, the block can transition into a wrist grab, pulling the opponent's left arm to your left, thus shifting you out of range of his other hand, and allowing you to apply an open hand press at either elbow or shoulder, or to apply a damaging open hand strike to the elbow.
2. If the attacker is punching with the right hand, the block can transition into a wrist grab, pulling the opponent's right arm to your left, shifting his ballance to his right foot, allowing you to sweep the leg while pressing or striking with your right hand.
Pressing defense uses a circular motion to bring your left palm down on the incoming attack and press downward.
This can also transition into a grab that would allow you to either retain the attacker's right while striking with your own right hand, or to execute a wrist lock take down using both hands.
The third movement is to turn north and execute jebi pum mok chigi (swallow form neck strike). In this technique, a sonnal olgul makki (knife hand face defense) is used simultaneously with a sonnal chigi (knife hand strike) to the neck.
With the knife hand defense, you are defending against a face/head level punch. As an open handed defense, it can transition to a grab of the attacker's right wrist. The same option for a sweep or a follow up strike that was present with sonnal makki is present here.