Kyu Exercise 152 / Attempts

How not to do it.  

xela: This doesn't work, as black can throw in with at to make a false eye. This leads to ko:

Solution?  

xela: I think white can live this way. Next, a and b are miai; either way, will be captured and white makes a second eye. (If black a and white b, black's throw-in idea doesn't work any more, because four black stones are in atari.)

unkx80: Correct. =)