Ashihara mapped out the space around an opponent, identifying safe blind spots (the back and sides) where a fighter could strike without being hit.
In the 1980s, Ashihara broke away from the Kyokushin organization and developed his own style, which he called "Fighting Karate." This approach emphasized the development of practical fighting skills, drawing on his experiences in full-contact karate tournaments and street fights. Ashihara's ideas were both praised and criticized by his peers, with some seeing him as a visionary and others as a maverick. fighting karate hideyuki ashihara pdf cracked