different between koshikudake vs fumidashi

English

Borrowed from Japanese ???, literally "inadvertent collapse".

koshikudake (plural koshikudake)

(sumo) a situation in which a rikishi accidentally falls over, his opponent thus winning

From Japanese [Term?] (“rear step out”).

fumidashi (plural fumidashi)

(sumo) A situation in which a defending rikishi accidentally steps too far back and out of the ring, his opponent thus winning.

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