Front Arm Triangle | Mae-hadaka-jime
Mae-hadaka-jime loosely translates to "front naked choke". In Renzo and Royler Gracie's Brazilian Jiu-Jitsu Theory and Technique, it's called a Front Shoulder Choke. Colloquially, it is called a Front Arm Triangle. Other variations are the D'Arce Choke, Brabo Choke, Front Arm Triangle, and Anaconda Choke.
Depending on the position of the head, it is synonymous to a Guillotine, a popular wrestling submission. The Anaconda Choke includes trapping the opponent's arm, which is similar to the Japanese Kata-gatame.
The following pictures demonstrate Kyuzo Mifune's version from The Canon of Judo.
Similar to the Rear Naked Choke (Hadaka-jime), this technique is:
⁃ Executed without the use of the opponent's clothing.
⁃ Considered a blood choke.
⁃ Completed with different variations of hand or arm positioning.
However, unlike the Rear Naked Choke, the opponent inclines forward.
The two hand positions are identical reversals of the Rear Naked Choke variations. In Version 1, the forearm presses against the carotid artery, cutting off blood to the head. In Version 2, the inside of the forearm and bicep push against the carotid.
The bottom hand position is demonstrated (top left). The choke is set up (top right). The choke is applied (bottom left). Ouch. Smart (bottom right).
In The Canon of Judo, Mifune advises, "If there is a chance [to apply in] this manner, […] pull his head to your abdomen instead of holding the nape under the armpit" (137).
The bottom arm is fitted under the neck, so that the carotids are pinioned between the bicep and the forearm (top left). The free arm acts as a fulcrum, as the fingers on the opposite hand slide down the bicep (top right). The choke is applied (bottom left). An alternate view of the opponent's head (bottom right).
In these pictures, the choke is demonstrated from a standing position when the balance is broken. Another excellent way to do the choke is when the opponent is choked from the attacker's guard.
Unless executed under proper instruction, please do not attempt this chokeholds on your own! For more information on Judo or Jiu Jitsu, Ann Arbor Japanese Martial Arts Center is happy to answer your questions!