Pinan Godan is more difficult to characterise than the earlier Pinans; there are fewer mirrored sequences, which allow you to delimit drill sequences within the kata, in fact there are only the two, the starting movements and the ending movements. This can make analysis (bunkai) far more difficult and is closer to the older katas in terms of difficulty. Having said that, it is short. Things like a mawshi-empi-uchi into an empty hand can indicate a final movement in a sequence because typically the opponent's head will be in between but often you have to run a sequence until the opponent is defeated in some way. This is unfortunately trial and error.
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Pinan Godan 1
Turn left 90° and execute uchi-ude-uke with the left hand and left leg forwards in nekoashi-dachi (kokutsu-dachi for the Heian variant).
Bring both feet together and rotate 90° clockwise to face the front in heisoku-dachi.
Simultaneously pull the right hand to the hip with hikite and with the left execute mawashi-tsuki (hook punch). In the Heian variant this is done slowly to indicate resistance.
Bring both feet together and rotate 90° anti-clockwise to face the front in heisoku-dachi.
Simultaneously pull the left hand to the hip with hikite and with the right execute mawashi-tsuki (hook punch). In the Heian variant this is done slowly to indicate resistance.
Pull the right hand to the hip with hikite and punch with the left hand simultaneously. In some Pinan variants the body rotates 90° clockwise during the movement. In the Heian variant, an open hand shuto-uchi is used rather than a closed handed punch.
[Pinan] Turn 180° into kokutsu-dachi with the left leg forward and block to the front and rear with manji-uke; or simultaneously a gedan barai to the front with the left hand and a jodan uchi-ude-uke to the rear with the right.
[Heian] Turn 180° and step forward into zenkutsu-dachi with your left leg forward and strike gedan nukite-uchi with your right hand. Move your front foot across into kokutsu-dachi and execute manji-uke or simultaneously a gedan barai to the front with your left arm and a jodan uchi-ude-uke to the rear with your right.
[Pinan] Step forward into kokutsu-dachi with the right leg forward and block to the front and rear with manji-uke; or simultaneously a gedan barai to the front with the right hand and a jodan uchi-ude-uke to the rear with the left. Note that shito-ryu and wado-ryu styles perform this movement at an angle of 45° to the right while shorin-ryu perform it to the front.
[Heian] Step forward into zenkutsu-dachi with your right leg forward and strike gedan nukite-uchi with your left hand. Move your front foot across into kokutsu-dachi and execute manji-uke or simultaneously a gedan barai to the front with your right arm and a jodan uchi-ude-uke to the rear with your left.