I never did catch up with her to give her my full analysis, but
I am sure that she would have nonetheless been proud of me. Suppose that I ruffed the opening lead, played the A followed by the 4, ruffed by righty. Now, righty exits a low club to the Q and A. (Note that a heart return also works, but the defence is tricky.) If I pull 2 rounds of trumps first then I will have 3 more losers for down one. So any plausible line of play must involve setting up the spades before pulling trumps.
| PARD (dummy) K J 8 7 4 A K 3 2 - A J 9 6 | ||
LEFTY A 10 9 3 2 - 10 7 6 2 Q 10 4 3 |
RIGHTY - J 8 6 4 A K J 4 3 K 8 7 2 |
||
ME Q 6 5 Q 10 9 7 5 Q 9 8 5 5 |