I forked an old 7x7 game ( 友谊赛) with some “big” seki
It’s definitely not correct markings
If I recreate it on a 9x9 board say
I’m not sure if the way it’s (auto)scored is correct in any ruleset.
In Chinese/AGA rules I’d expect J1 to be a point for black, but in Japanese rules, there should be no points for anyone, which means G7 shouldn’t be marked dead, and there’s no points there for black (which includes G9). Black should actually remove it from the board to gain a prisoner in Japanese (and presumably Korean) rules.
Edit: Maybe this is slightly complicated because it’s a dead shape for white, but actually killing it opens up a ko that black can’t win, it’s not like a bent four, hmmm. It’s seki because you can’t demonstrate the white stones are dead in hypothetical play.