Sanchin. The Three Battles of Kyokushin Karate

Sanchin no Kata made it’s way into Kyokushin Karate through the founder, Sosai Masutatsu (Mas) Oyama. Sosai Oyama had a background in various arts, including 4th Dan in Shotokan, 4th Dan in Judo, Taikiken, Aikijujutsu, as well as a 7th Dan Black Belt in Goju-ryu, under Gogen Yamaguchi.  Sanchin is a kata of Goju-ryu.