This problem was created by Lee Eodeokdung 1p. He showed to me at the European Go Congress 2017, and it quickly became one of my favourite tsumego.
Black to play.
All times are in Helsinki time (eet with summer time).
New pairing for the online league made every 1st and 3rd Saturday of the month.
Public lectures on Twitch every 2nd and 4th Saturday of the month at 1 pm.
Jeff and Mikko stream on Twitch on Fridays at 6 pm.