StephaneLamy:
G1 F1 H1 J2 J1 is marked incorrect, I would like to see a refutation. (On K1 I play F2 and it seems to be one big eye against 1 small eye?)

noUser:
Answering kovarkes: O1 instead of R1 lives without ko

kovarex:
Added answer to the wrong peep with just one stone (which seems to be ko if I'm not wrong).