The variation from @Groin was different from the one I had in my mind, and better since it works even without the last dame that white filled. See demo board linked above for variations.
So in the game I should have started inside immediately instead of taking the dame and giving black the chance to protect!
I’m white in this game and I’m already way behind, but I didn’t resign yet…
Start the O4 ko?
I believe the point may be that O4 does not result in a Ko fight.
Ah!!
Indeed! This looks super easy in hindsight, but it was a blindspot for me in the game.
From Jakobb’s stream: Black to play.
Can white save the marked stones?
Does White need a ladder? (Edit: this question refers to the original diagram without the stone at F8.)
No
Nope! I don’t think it matters for this problem whether white has the ladder or not, but I added another stone at F8 to make it clearer.
Since it’s quite a hard problem, I’ll spoil that there is a way for white to save the stones, but with strongest resistance from black it will be a ko 
I believe that b3 as a first move can’t hurt. And then it presumably involves blacks liberty shortage.
complex life and death problem only helps high d players, not me. 
The following variation agrees with the hints.
I found it cool that B3 must be played immediately - if white tries to start with D8 and get B3 in later it doesn’t work anymore.
Does somebody know where we can find a link to the problem answer?
