Sanchin-Dachi or Sanchin stance is named after Sanchin kata and is the main stance we use when practicing hand techniques while stationary during Kihon practice.
On the command of "Sanchin dachi, yoi (三戦立ち、用意)", cross your arms and transition to Heiko dachi (平行立ち). On the command of "kamaete (構えて)", go into Sanchin-Dachi by bringing your right foot near your left foot and sliding your right foot outward in front of you until your feet are about shoulder width apart as viewed from the front and the heel of your right foot is aligned with the toes of your left foot as viewed from above. Simultaneously, bring your arms inward and up into position. As you get into position, kiai (気合).
In the final position, your fists should be at shoulder height. Your fists should be about three fist widths apart. Your elbows should be about two fist widths apart, and your elbows should be about one fist width from your torso. Make sure you have an upright posture. Your knees should be bent slightly and close enough together for your thighs will prevent a kick to your groin from reaching your groin. Your toes should be pointed inward and the heel of your right foot should be aligned with the toes of your left foot.
In doing kihon, you will be right foot forward, but some kata may require you to go into this stance with your left foot forward. Also, the person leading kihon will be left foot forward in order to be a mirror for the students.
