ceres, sorry? I'm not connected to the company. Is that a pre-requisite for sharing links here? I apologise.
I wasn't aware we were located in the same place, though that might explain why Google offered it to me as I know it ranks pages by location distance to searcher.
Hello it seems you have got this issue sorted but in case anyone else is looking for advice, I would suggest using a circular saw to get through the tongue and saw the board off a few inches to the side of the joist. Then lever it up with a pry bar. This will preserve the boards.
If you can't...