Ashihara is the name of the style created by Hideyuki Ashihara,one of the greatest students of Sosai Oyama...it's call sabaki and this means a circular movement...you don't stay in front of your opponent and hit, you move circular and hit, trying not be hit by the opponent. First, the rules were the same like in kyokushin, but have been changed from this year... i will tell you later more about ashihara and sabaki challenge...