As we know, the Pinan kata were developed by Itosu Sensei between 1902 and 1907 and introduced into the Okinawan school system. Like no other, he influenced the development of modern karate.
Besides the Pinan kata, Itosu Sensei developed among others the three Naifanchin kata, the Passai Sho and Kushanku Sho. In my opinion, a significant part the worldwide spread of karate is due to him and thereby the possibility for us to practice this wonderful art.
So, on which basis did Itosu Sensei develop the Pinan kata (and Kushanku Sho)?
It is supposed that Itosu Sensei developed the Pinan kata basing in particular on the Kushanku kata. Because of the length and technical complexity of the Kushanku and other old kata, these forms were unsuitable for pupils and beginners. So, Itosu Sensei allegedly removed many dangerous techniques from the kata, like fingertip strokes in the eyes, in order to make karate suitable to be taught in school lessons. He also reduced the length of the long old kata or split them.
So far, so good! Now I present my assumption regarding Channan:
I plan to publish a book in 2020, treating the Channan no kata. I will describe the Pinan kata and the Kushanku variants of Shudokan and further I will give a more detailed justification regarding the Channan no kata theory. Please be patient while waiting!
In this blog I would like to answer some of your questions about the book. In addition, there are a variety of photos and interesting stories that have not found entry into the book. Furthermore, the blog should serve to give you new historical insights immediately, so you do not have to wait for the second edition of my book.