The Tekki (Iron Horse) kata originally came from the Okinawan style of karate known as Shuri-te and were derived from one longer form called Naihanchi (Internal Divided Conflict) that was revised and split into three through Anko Itosu’s teachings. Some scholars believe he actually invented Tekki Nidan and Sandan, but as only Tekki Shodan has a formal opening, they were probably derived from one kata.
It is believed that Itosu learned Naihanchi from his teacher Sokon Matsumura, who in turn learned it from a Chinese man living in Tomari in Okinawa.
