Public forum discussion.
18 Aug 2018
Is this count correct? I'm asking specifically about the black E18-E19-F18 group and the surrounding white group?
Is the black group dead? is the white group dead?
Or (as I think) are both live?
It doesn't make a difference in the result of the game (Black wins either way) but it might have made if the diff was smaller.
Game 1929013
18 Aug 2018
[game;id:1929013;move:216;title:Counting question about top left groups]
18 Aug 2018
[game;id:1929013;move:216]
18 Aug 2018
[game;id:1929013;move:216]
18 Aug 2018
I think it is seki (i.e. both alive and your assessment correct).
Disclaimer --> EGF 8k
18 Aug 2018
I agree with both of you.
20 Aug 2018
It's a seki, so the 3 empty points inside don't count.
23 Aug 2018
I agree both are alive thus seki; the invasion you (Black / YperCube) made stopped White from getting two eyes, and the invasion itself has no eyes, and the two groups have 3 common liberties which can not be filled in by either player... Note however if White were to make a bad move and fill in the top liberty Black could play atari on White (and self atari) {by playing down, making T - don't make bent 4!)} and after White captured the 4 Black (T shaped) stones Black could play in again for the kill.