Which slam?

[Free]

[hv=pc=n&n=s87haqjt4dkjt864c&d=s&v=b&b=7&a=2np3dp3h(2%21h,<5%21s)p4dp4h(cue)p4n(RKC)p5d(0/3)p5h(%21dQ%3F)p6d(no)p]133|200[/hv]

You might disagree with 4NT, but there's no way to bid exclusion and 5♣ didn't seem to solve more problems than it creates. Anyway, you got lucky, partner has all 3 keycards. What do you do now?

 

EDIT: imps scoring

[RunemPard]

I might just try 7NT on a prayer...but more curious question is how likely partner is to hold 4 diamonds when they are known to have 2 hearts and less than 5 clubs.

 

Does bidding 4♦ here typically promise 6 hearts? With 2 hearts and 3 diamonds partner may very well just bid 4♥. But, with 5/5 in the suits, of course we want to show our good ♦ suit as well.

 

Edit: Forgot that there was 4♥ as a cue already...answered my own question.

[nate_m]

A grand missing the queen of trumps vs a cold small slam is about as even money of a bet as you will see in terms of EV at IMPs. At MPs I'd bid 6H. At IMPs, flip a coin as to whether or not to bid 7NT.

[TWO4BRIDGE]

Its a good bet that opener has at least A Q .. in both black suits, so with opening lead protection, 6NT should be cold ... and assuming he has only ♦ A x x at worst, the Grand depends on the hook for the Q or the drop.

" Do you feel lucky, punk ? "

[Quantumcat]

Question - having shown only 2 ♥s, is he obligated to play in diamonds now, and must cue if he can? Or is he allowed to bid 4NT or 5♦, saying he is not interested in slam? Presumably he has at least four diamonds, with only ♦A72 he'd have bid 4NT. So I would have just assumed he had at least four, and therefore the diamonds are running, and bid 5NT to see if he had a black king to round out 13 tricks :-) (He probably does, ♠AQ9 ♥K5 ♦AQ32 ♣AJ32 might have warranted a 5♦ bid).

 

Edit: Oops, I cannot count to 13, the only requirement of a bridge player. Sigh. So ignore the above, I just bid 7NT.

[SteveMoe]

Knowing ♥K, ♠A, ♣A, and 4 ♦ cards means there are 13 tricks 89% of the time (78% 2-1 ♦ break, plus 50% of the time partner guesses the 3-0 ♦ break right IFF we are missing the ♦Q).

[Zelandakh]

Did we need to ask about the ♦Q? Partner seems to have shown Ax(xx)/Kx/Axxx(x)/Ax(xx) plus some minor honours so we can count 13 tricks in NT. When you know what the best contract is, just bid it.