xela: My first guess seems to end in seki. No, wait, now that I've drawn the diagram I can see that white isn't connected, so it's not a seki after all! So, is this the solution?
unkx80: doesn't look right. I think this should be a seki.
xela: This also looks tempting, but I think white can make a ko by playing at instead:
xela: But looking at it again, I think is a mistake.
xela: So now I have two candidate solutions. What have I missed?