If trumps are not 2-2 then you will have to endplay RHO (who must hold the ♠K) to make. I would ruff a club with the ♥10, draw one round of trumps, and lead the ♦K and ♦Q. Presumably the ♦A will win one of these and return a diamond (either opp) a spade (LHO) or a trump (RHO). I win, clear diamonds, and then put RHO in with his ♥Q to lead a spade or give a ruff/sluff if hearts didn't break 2-2. This line contains the following risks: If LHO started with 2-2 rounded suits and the ♥Q, I am down in a cold game. If RHO started with the ♠K, ♥Qxx, and ♦xx, I will fail when I could have succeeded by drawing 2 rounds of trumps. However, if I were to draw 2 rounds of trumps then I fail when RHO started with the ♦A and ♥Qxx. If LHO started with 3 clubs, ♥Qx, and no ♦A, I allow myself to be uppercut. This is very unlikely due to LHO's continuation of the ♣2.