different between koshikudake vs isamiashi

English

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

koshikudake (plural koshikudake)

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

Borrowed from Japanese ???, literally "forward step out".

isamiashi (plural isamiashi)

(sumo) a situation in which an attacking rikishi accidentally steps too far forward and out of the ring, his opponent thus winning

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