TherapieGo: I've just checked with the AI to be really sure and there's no refutation to my move C18 after G18 because even if you answer H18 I continue to block in J18 and you're dead!
TherapieGo: 2 things to say:
Firstly, I think we need to add the ko branch just after we've solved the problem to make it clear to everyone that the problem is objectively ko. You've already done this very well for a lot of other problems, so why not for this one?
Secondly, after the sequence S1, P1, R1, T1, R1, N2, I'm pretty sure you can play R2 too and it works?
Ivan Detkov: I added a refutation to your R2 idea. It is M2. Ko is trivial on the intermediate level and I do not like the idea of adding it.
Lucirex : After s1 w hast to Play ko on R1. If w replies with P1 then b Just connects on R1 and w is dead unconditionally. If w tries n2 just m2n1o2o3m1 and if w takes on o1 b plays R2 and w is dead because of Liberty shortage
Ivan Detkov: caranthir already gave an answer to it.
caranthir: Yes, that would be an obvious stronger resistance, but would miss the theme of the problem, which the chosen resistance moves on the other hand do demostrate.
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