Triangle choke

While details of its origin are unknown, it is strongly associated to Yaichibei Kanemitsu and his apprentice Masaru Hayakawa, who featured the first registered use of the move in a kosen judo tournament in Kobe, Hyogo in November 1921.

[2][3] According to Kanemitsu himself, a primitive version of the move had been shown by Takenouchi-ryū master Senjuro Kanaya around 1890, though it was apparently a simpler form of neckscissors without the posterior triangle action.

[8] The first reported variation was the front triangle choke or mae-sankaku-jime (前三角絞め), applied from the position known in modern times as guard, often after a pull down or hikikomi (引込).

[12] Other sources, like Toshiya Masuda[9] and Roberto Pedreira,[13] believe it might have been introduced in Brazil much earlier by Yasuichi and Naoichi Ono, disciples of Yaichibei Kanemitsu himself, as well as possibly other judo practitioners like Ryuzo Ogawa.

[13] Rolls trainee Mario Tallarico lends credibility to this theory, [8] as does a 1935 newspaper clipping that depicts Yasuichi Ono performing a Triangle Choke in his training for an upcoming fight with Helio Gracie.

To escape a triangle choke, the defending practitioner must first elevate their head so as to preclude the full force of the submission, and subsequently must bring their arm away from opposition with their own carotid artery.