Scoring: MP
Bidding went
p-1♦*-2♣-X
p-3♣*-p-4♥
ppp
1♦ was 10-14 0+ diamonds unbalanced
3♣ showed a max hand with 44 in M
4♥ showed your assumption that pd rates to be short in ♣.
West leads the ♣J to two x's and your king.
You play KQ of trump, only to see East discarding a small diamond (explained as Lavinthal) on the 2nd round.
Your turn.

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