Gōjū-ryū

, Japanese for "hard-soft style", is one of the main traditional Okinawan styles of karate, featuring a combination of hard and soft techniques.

is a kata of naha-te karate style, whose authorship has been mentioned as Kanryo Higaonna.

Seigokan (正剛館) is the Goju-Ryu Karate-do organization founded in 1945 by Seigo Tada (1922-1997) Hanshi (8th Dan). With its Hombu Dojo (headquarters) in Himeji, Japan, the Seigokan All Japan Karate-do Association (SAJKA) — its official name — has branches in Australia, Brazil, Canada, China (including Hong Kong and Macau), India, Italy, the Philippines, Portugal, Sri Lanka, the United States, England, Chile, Colombia, Indonesia and Venezuela.

The karate kata (alternate names Sesan, Seishan, Jusan, Hangetsu) literally means '13'. Some people refer to the kata as '13 Hands', '13 Fists', '13 Techniques', '13 Steps' or even '13 killing positions'; however, these names have no historical basis.

is a style of Okinawan Karate founded by Kyoda Juhatsu.

, also pronounced as Seienchin (セイエンチン) and the latter often written as 征遠鎮, is a kaishu karate kata. In the lineage of Goju-ryu, it taught by that style's founder, Chojun Miyagi, who in turn learned it from his teacher, Kanryo Higaonna. Seiunchin can be interpreted to mean "pulling".