Force opponent out of the dohyo (any part of body steps outside the rope), OR; Force opponent to touch the dohyo with any body part other than feet (knee, hand, even hair) — falling, being thrown, or losing balance
Why people argue about this
People often assume that a sumo wrestler wins simply by touching their opponent outside the dohyo; they overlook the complexity of needing to force them out or use one of 82 officially recognized techniques to win. This oversight leads to debates on whether a touch alone is sufficient under the official verdict.
