I know it's not fashionable nowadays to jump shift on the North hand, but surely it makes the bidding easier on this sort of hands.
West leads a spade. The king wins and a spade is returned. It may look as though you are sure to go one down, because the trumps are not exactly solid, but the form of play known as "evelopment" may come to your aid.
This play used to make more appearances in bridge litterature than it does nowadays.
Is it new to you?
You need to find East with precisely 3-4-2-4 distribution. You ruff a third round of spades and two clubs in hand and ruff a third round of hearts, finishing in dummy. You are down to (see diagram left):
You ruff a club with the diamond six and advance the Q. This is ruffed by North. Then you have the A-J of trumps over East's K-10. Easy!
Bridge Today, Jul-Aug 1994, p. 28 Terence Reese