Gokyo Shumyo III 80/90 on Tsumego Hero

White to play.

3k (48.89%)

File by Fupfv

posetcay:
Added a stone at B11, should properly be a ko now.

caranthir:
Thanks.

14. October 2022
13:18

caranthir:
SGF

d4rkm4tter:
As this problem seems to have no solution, I will remove it soon.

11. May 2022
07:34

Ivan Detkov:
It looks like an invalid task. c-16, b-16, b-15, a-15, a-18 instead of a-17 kills.

caranthir:
I agree. Currently I don't see any valid living sequence (ko or otherwise). Ivan's implied refutation above.

24. April 2022
18:52