There are four of us and 4 black liberties. Remembering that we need to add a stone to each color’s (except Green which is not in danger) chains to make it a suicide instead of a direct capture, I think there’s only one permutation of those 4 attacks that works.
However, even that isn’t guaranteed to kill Black. If we could get them to reveal some of their moves first it might help.
Therion, maybe it would be advisable for blue to move into the lower left? Or otherwise consider the long term plans for survival of that group.
It seems like with the board this size it’s difficult for any one color to live especially when not linked with the matching color from the other team.
In the lower right, the blue chain was captured (being the only old chain without liberties, as every other chain there had a stone added this round). This freed up liberties for other chains, so they survived.
Sure, if Pink gets captured, the white-blue stones are separated from other white stones, so I’d prefer them getting captured over Pink getting captured.