TherapieGo: In Black to play [current position] + B17B19A17C18A19 This is the best solution, and the only one, because it's a Ko that Black takes first, and there's a resolution step for White. Everything else is slightly inferior for me.
caranthir: Please check if there are any misplays or positions with incorrect status. I can't guarantee necessarily that there aren't any missing variations still too.
caranthir: If w B19, the refutation currently is b B17. But now if we continue with w C19, I don't see how it's not dead.
caranthir: Ah, just like Hrewsahgs said earlier. For now I don't see why the sequence wouldn't kill (and no other refutations), so I added it as a solution.
For now I added the following: B2 A2 F1 B1 C2 C3 C1 D1 A1 A3 A5. There seems to be other unimplemented ko variations still.