Worst contract ever to make legitimately

I didn't actually play this hand, nor was I even in the same state at the time - but I couldn't resist writing it up.

Charlottesville VA
Open pairs
Matchpoints


S J
H Q 6 3 2
D A Q J 10
C J 5 4 3
[W - E]
None Vul S A K 10 8 4
H A J 9
D K 5 4
C 6 2



West

Pass
Pass

Greg
North

3 S²
6 NT³


East

Pass
All Pass

Noble
South
1 NT¹
4 S
1. 14-16
2. Shows this hand but with majors reversed
3. Apparently the best way to fix this was to bid 6NT

6 NT by South
Trick
1. W
Lead
C K
2nd
3rd
4th
Made 6 — NS +990

So for starters you need the club suit to block, which means specifically stiff A. Then you need 5 tricks from spades, so that means exactly Q9x onsides. Then you need 3 heart tricks, so that means finding K and T onsides, or stiff T offsides. Which isn't actually all that unlikely given that West must have 10 black cards. Well, all of these things were happening, so score it up and claim good bidding.