Wow, partner thinks I'm the greatest declarer since Watson, I guess, to raise me on this.

... oh well, anyhow....
I think the best plan is to budget to lose zero
♠, the Ace of
♦, and two trump tricks. That means I'll have to ruff one
♠ and toss the other on the King of
♦.
I'm going to assume (Card Placement by Assumption) that West has the Ace of
♦, but I think that's a pretty good bet, since I'm missing KQ
♥ and QJ
♦, and East probably has a couple of those for his weak 2 opening.... if he had also the
♦ Ace, he might have opened 1
♠.
So:
t1. Win the Queen of
♠ in hand. (Assuming East just played low.. doesn't matter anyhow).
t2. Lead the small
♦ toward the King and let West take his Ace.
t3. West leads his other
♠ now (assuming East started with six of them). I ruff it in dummy.
t4. Lead the
♦ King and ditch my final small
♠ on it.
Now I've just got to keep East out of the lead, else he'll give West a
♠ ruff.
t5. Lead the remaining trump from dummy. East plays low.
Now what to play from my hand.....hmmmm....If the opps trumps are evenly divided 3-3, then I think I'm home free, however I play... I can play the Jack, let West win his top
♥ honor, win the return, play the Ace of trump and another trump (which they win), and I'm done... I've lost the Ace of
♦ and two trumps.
However, If their trumps are 4-2 (West holding the long
♥), I may be cooked,
unless East has the 9. So probably the better play is, 8 of
♥ from the board, and duck it in my hand, hoping West wins with the K or Q. This doesn't cost me anything, as if they are divided 3-3, I think I always make it....
Lead:Jack of Spade