The world of sumo as seen from the rule

―One point of view of sumo research―

Abstract

　Sumo world is supported by a variety of rules. And say sumo world of rules, would think of the rules related to efforts on the playing field. But, not only that. And rules on the holding of this location, there are also rules on the master. Therefore, the present study, the rules that make up the sumo world, divided into four categories, for each of the categories, analyzes the realistic aspect of the rules inherent in there.