We try it out at /Attempts.
The solution is copied over from /Attempts, with minor corrections.
Main line: Hashimoto Utaro
Variations: unkx80, Dieter
White 11 at a and Black 12 can't play at b because White captures three in a row, assuring a second eye.
If White fires off the usual sequence first only to play the former tesuji at 7, she falls short as a is now suicide.