Strange explanation, and I have no idea about the hand GIB can have.
I ended up bidding 4N and GIB bid 5♣ - are you getting closer?
Spoiler
Posted 2022-November-15, 09:50
Posted 2022-November-15, 10:14
Posted 2022-November-15, 10:24
pescetom, on 2022-November-15, 10:14, said: