Igo Hatsuyo-ron Problem 17

Black to play  

There is a mistake in the construction of this problem, the result is Black first, Black dies. While it is not unusual to have construction errors, it is rather odd that in some versions of the Igo Hatsuyo-ron, this problem is listed as the very first problem, making it the target of jokes worldwide.

Black to play  

! kills.

Black to play  

hnishy: This might be a printing error of the original, because if the shape is a little more distant from the corner, hane is sente and Black gets ko at least. Next