I was once asked by a friend what the kokutsudachi of Shotokan was for and in particular why we have the back foot perpendicular to to the front.
I was reminded of this because of the interview with Ken Funakoshi: I once asked him what the purpose of back stance was, he replied he didn't know, he works his applications out of front stance because he could see no advantage to kokutsudachi.
I say this not to slight the man as he is the most skilled and knowledgeable martial artist that I have had the pleasure of training under, but it certainly made me think more deeply about the question than I ever had before.
So now I ask you fine gentlefolk, what use kokutsudachi?
