Cyberyeti, on 2015-September-08, 07:19, said:
Win A♥, diamond to Q, when it loses I'm going to need some luck which I get with the diamond finesse and clubs 3-3 because I have a problem if they play spade-spade next not knowing the Q ruffs down.
My plan is to make 2 diamonds, 3 clubs and 5 trumps (which might mutate if they cut me off from the 4th club to another spade ruff instead of a club), clearly I'm in much better shape if the Q♦ holds.
I don't think you can get enough spade ruffs if the opponents keep leading trump every time they get in
Phenix214 asks "How do you play in 4H on the following hand?
Lead 6H, Scoring Cross-Imp, random opps"
IMO, most plausible lines of play involve guessing ♦s.
In practice, I'm afraid that I'd go down by taking a 1st round finesse of ♦9.