d4rkm4tter: Took me like a month to decide what to do with this problem. I did some research. Black plays G18 is correct. White can kill the corner by playing E17 or connect to the outside with G17. The problem's assumption is that connecting to the outside is more important than killing the corner. To make this clear, I added stones on the outside that would die if not connected. Both decisions are kept in the file.
todbeibrot: black still loose the semeai.
n2p3n3r1q1p1o4s4o2t2o1r1 and white has an eye against no eye.
and black looses the race by one liberty if black plays t2 to pretend the eye
GoDave89: Dieses Tsumego funktioniert nicht btw.
N2 kann einfach mit P3!!! beantwortet werden, und die Seltsamkeit der Ecke, lässt schwarz alle Semeai gewinnen.
G2 - E3 - G3 there's a bug, where a black stone replaces white one.