LukeNine45: Perhaps this?
xela: No, at 'a' and there is no ko. Unfortunately though I don't know what the correct answer is! I want to play at , but I can't see a followup that works.
LukeNine45: Duh. Good point. I wanted to start that way too, but also didn't see a continuation! hmmm, how about this:
xela: I don't think this works either: at ?
LukeNine45: You mean this? Still ko, no?
xela: Yes, ko.
xela: white can try to break out this way, but I don't think it works.
xela: I think this does the job, but there are quite a few variations...
This is the part that I (xela) find difficult. can't escape, but white has a dead shape. (If at 'a' instead, then at .) I'm sure there are a few more variations, so I may have made a mistake.
LukeNine45: at b? hmmm, no then at ...
LukeNine45: I think white lives this way?
xela: If black plays at 'a', then the eye at 'b' can be squeezed shut, same as in variation 4 above?
LukeNine45: hmmm this looks both bad and unavoidable...
xela: ... so now we seem to have two solutions!
modified; 10 at 4, advantage white!