Partner opens 1♦ and you're thinking of all sorts of fun things you can bid with this hand, when RHO jumps to 3♣. What do you do? Scroll down after you pick your call.
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This was the last board of an evening club duplicate last night in which we had gotten dinged up. At the table, I went into a huddle for a while before raising to 3♦. LHO passed and partner, evidently conflicted, went into the tank for what seemed like all night before she finally passed. When RHO led a top club and I put my dummy down, she showed a strong expression of displeasure before proceeding to take eleven tricks, turning up with four spades along the way. This deal put the capper on a subpar session.
This was the hand:
Partner stated that I should have gone ahead and bid 3♠ to show my major suit with the diamond fit available as a fallback. I agreed, but maintained that I feared 3♠ could get us too high, and I didn't think I could make a negative double with a singleton heart. Even after the post-mortem, I'm still not convinced that 3♠ is clear-cut. LHO is unpassed, and 3♠ could conceivably put us out on a limb opposite a 2-4-4-3 minimum.

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