Here is my try:
Scoring: IMP
(2♦) - Pass - (2♠) - pass
Pass - 3NT???
2♦ = 6(7) Hearts or Spades, 0-4 hcp, must be a decent suit when vulnerable.
2♠ = Invitational if partner has hearts.
This is the best I can come up with. RHO must have the KJ of spades in the slot, and all partners red values are stacked behind LHO. And the clubs can "easily" be set up.
If you want to make a better example, the following should apply:
2♦ must be some kind of multi.
2♠ must be invitational.
The hand cannot contain a hand that would make a tough overcall or double on the first round. (So no 12 counts, and no ♣KQJxxx and ♠AJ9.)

Help
