Well...
Originally posted by Caio
What is the difference between an "Ippon" and a "Yuuko Datotsu"?!
Well, literally translation of Yuko Datotsu is "Valid Strike". By that, it means the strike is done with the correct part of the shinai, or the "datotsu-bu" which is 1/3 the length of the blade with correct hasuji.
Now, a valid ippon consists of several elements, namely "riai(logic)", "yoko-datotsu" with ki-ken-tai-ichi, and zanshin.
So, while an ippon MUST have yuko-datotsu, yuko-datotsu is not necessarily an ippon, because there may not have been proper riai in the strike, or proper zanshin.
David Pan
"What distinguishes budo from various sport activities is the quest for perfection."
- Kenji Tokitsu