Partner tanked before passing 2♥ so I quickly passed as well.
partner led ♦K. I OVERTOOK, to PLAY TRUMP, and hopefully save a spade trick from my partner.
declarer though that her spades where solid, so drawed 3 trumps ending in dummy and played ♠J. I COVERED, again to promote partner's spade tricks, and declarer won ♠A.
She exited with a diamond. I won this trick and PLAYED A SPADE THROUGH. Declarer won with ♠10, and exited with a club. I won with ♣J, and PLAYED ANOTHER SPADE.
As you can see, I made all efforts possible to save partner's spade trick. Next thing declarer did was to play a trump. Partner discarded ♠9, -140.

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