[the_clown]

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Jec leads a low club and your 9 holds, while 3rd hand follows small. Your play.

[whereagles]

spade up, ofc

[navahak]

Spade because I don't want to play anything from dummy.

But actually best line seems to be .... ♦ to A. Then small ♥ finessing ten. They can take now 4♠+1♥+1♦. After that I ill enter dummy with ♦Q and lead ♥J dropping Tx from Cayne. But playing spades first doesn't lose anything compared to this line and it might even win on some defensive error along the way. But you have to be careful to raise the ♦A if Garozzo shifts to ♦ or Cayne can play low forcing the dummy entry before you are ready to use it.

Playing club back to hand is worse because that loses control in clubs and defense can setup a club trick in addition to diamond play line losers.

EDIT: As a second tough I might settle for down one in table. Making is quite unlikely while opponents probably have 8-9 tricks in spades (clubs 4-1). Team mates might manage to bid it. This game isn't easy. On the way to down one there is remote chance that heart honors are favorable dropping under the ace so making could still happen but a bit less often. But even in this line spade first seems to keep all chance while adding defensive error to the list.