Extended Knuckle Thrust: This is the third unique strike/thrust of the Go-Ippon Kunite Kata set. Similar to the Seiken Zuki when attacking the chin. If attacking right, the right hand comes up from cover and the knuckles extend so that the first joints connecting the fingers to the hand are straight. The hand turns over somewhat pre-maturely compared to the Seiken Zuki punches so as to be horizontal before contact allowing the knuckles to reach the throat of the opponent. Note: for instructional purposes the target is the upper jaw so as to prevent serious damage to the opponent.