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What is Oshitubushi? i saw it on 6287 on goproblems.
it's simple.
as i understood this, this i case when your eyespace can't be reduced to 1 eye because of the suicide rule (attacker can't set a stone there, because his group would have 0 liberties).
but maybe it is a more general term.
unfortunately i didnt find that term on google again. maybe there is a typo. (but google didnt correct it!)
correct name is oshitsubushi . you will find it on senseis.
Bob McGuigan: But some Japanese (and others) romanize the tsu syllable as tu so by that method oshitubushi and oshitsubushi are different spellings of the same word.