KuroSenshi: I spent a lot of time wondering how to kill without ko (since its not specified that the result is a ko). But it made me imagine all the possible variations :) So, that was great actually!
And for those who commented, t19 doesn't work as white, b can just capture the stone with t18 and there is no killing anymore. You can just take the two stones with q18, but not kill the rest.
guile: Correct. But there is another VERY similar looking tsumego hidden somewhere on TsumegoHero... A Tsumego where T19 is indeed THE move (quite surprisingly) and as say Master Ivan "it "falls out of the category Easy".
Ivan Detkov: I just realized that A1 kills unconditionally. It seems to fall out of the category "Easy Kill" after that. What to do?
guile: Hello Ivan, I see the follow up (understanding A19 not as the 1st move, or i don't) but the defender can still rely on the Ko, no ? I do not see any unconditionnal kill (as a 1kyu i am proud to say i ideally represent the average player :) ).
Jochen: Is it really possible to kill here? I can easily catch the two stones on the side, but I really don't see how to prevent two eyes. I even double-checked with katago, but this didn't find a solution either.
Correct. But there is another VERY similar looking tsumego hidden somewhere on TsumegoHero... A Tsumego where T19 is indeed THE move (quite surprisingly) and as say Master Ivan "it "falls out of the category Easy".