Under The Stones Problem 7 / Attempts

Black is (almost) alive (?)  

After , there seem to be several continuations; in the most direct, and capture five black stones...

Black is alive in a simple way  

unkx80: The in the above diagram is dubious. here is very simple and direct. Then a and b are miai.

Continuation (of first diagram)  

After , if White captures Black's square with and , forms two eyes. Note that White cannot subsequently play at a!

Continuation problem  

unkx80: Although White cannot play at a, there is also the move at to consider. I leave it to you to figure what is the result.

1 Kills. I referred to another solution :P  

Kuolema: I can't see how can black live unconditionally, any way I look at it, it leads to a ko. (Unless black wants to kill himself)

unkx80: Eh... my mistake. Sorry. =P

Black is alive ?????  

@ , killing.

Black is alive  

@ , living.