Ok, it's a pretty good hand. We do not,as you will see, have any detailed or exotic agreements. My thoughts?
If partner has four clubs, we want to be in (at least) 6C. It might go down, but it is likely to have a reasonable play.
If partner's only four card suit is spades, then it is far from clear that we wish to be in any slam. The auction continues:
The 2D was FSF, but not much more was discussed about it.
Ok, I now reason
Partner does not have three hearts else s/he would have bid 2H. That means partner must have four clubs. 6C should have a play, I have no idea how to see if we belong in 7C, so I just bid 6C. Science? Who needs it?
The hands:
Ok, we have four clubs, four diamonds, two major suit aces and two spade ruffs.12 tricks. Brilliantly bid. I jest.
I note that partner, with three hearts and a diamond stop, chose 2NT showing the diamond stop. Not the usual priority I think See, for example, http://web2.acbl.org...suitforcing.pdf
But it's hardly crazy to bid 2NT. Not discussed, as I said. I played partner for only two hearts, thus four clubs, instead partner had only two diamonds, thus four clubs. Whew.
Some thoughts and questions:
Suppose, over the FSF 2D bid partner actually had bid 2H. I would now bid 3C, trusting that either FSF is GF or at least that bidding FSF and then showing the clubs is forcing. Do we still get to 6C? How?
Suppose partner is 4=3=3=3. Now some might rebid 1NT over my 1H with that shape, but suppose not. Can we then stay out of slam?
Suppose partner has four clubs and better strength. Can we reach 7C? Changing the spade Q to the spade K would be enough to have a decent play for a slam.
This is the I/A Forum so let us suppose that most people do not have unusual gadgets here. That is certainly true of me. How would you see the auction going, both with the actual hands and on some modest variants where either you might want to be in 7C or you might want to settle in 3NT or 5C. I never have been embarrassed to just take my best shot, it works or it doesn't, but obviously we could hope for better.
It's easy to say that of course on BBO, with the typical lack of full discussion, there will be trouble. But I think a fair number of I/A partnerships, on BBO and elsewhere, could have trouble with this hand. Including me.