KarlKnechtel: This is the best I can do right now... Black already has one eye, and the only plausible way to make a second is by capturing. is a natural way to start - anything other than allows at two to capture something and make the eye.
plays atari again, starting a ko. If White chooses to connect instead (at ), puts the pressure back on.
Nando: Good try, but there's a better way to get life (without ko)
is the key. White has no choice but to connect at . Then, gets the second eye because of the cutting point at a.
With the sequence up to , Black captures White's group.
Gabriel: Suppose was played at . What then?
Nevermind, just saw White would be in atari.
What about this?
Actually, B is dead in gote, being unable to fill the circled point. B fills, W fills, B can't atari while W can.