[luckyloser]

Your hand:

♠KQJxx
♥-
♦AJxx
♣Qxxx


you open 1♠ and the bidding goes (opps silent):

1♠ - 2NT (4 card supp, gameforce, maybe slam)
3♥(sing or void) - 4♣(cue)
4 ♦ - 4 NT
???

partner has shown a strong raise with 4-card support and a ♣control. he has denied the ♥A (no cue after 4♦) and has slam interest; he now asks for Aces (roman keycard), it seems Aces are his main concern now.
your correct bid now is 5♠, showing 2 Aces (♦A and the trump K) plus the trump Q (you haven´t agreed upon how to show a void). partner knows you are short in ♥ but not that you are void.

your 4NT answers show (5 Aces): 03,14,2,2+Q

do you bid 5♠ or something else and why?

[ahydra]

Can not partner have the HA? He doesn't have to cuebid - perhaps he only wanted to hear that you had a diamond control.

So I wouldn't worry about showing the void if you don't have responses for that. Just bid 5S.

ahydra

[Cyberyeti]

We use

6♥, 2+Q+void ♥

5N=2 no Q+ a void

not sure if this is standard or best ?

Where 3♥ has already pinpointed the shortage, I'd probably usesomething like:

5N=2 no Q, void♥ and at least one side K
6m=2+Q+that K
6M=2+-Q no side K

[TWO4BRIDGE]

Cyber.... You sure have a lot of bids to show 2 key cards + void, etc.

So, how do you show 1 key card + void, etc ?

[Cyberyeti]

TWO4BRIDGE, on 2012-February-24, 12:00, said:

Cyber.... You sure have a lot of bids to show 2 key cards + void, etc.

So, how do you show 1 key card + void, etc ?

We don't, but in many cases we already showed the void earlier. We play things like specifically void splinters as responses to 1suit.

I've never liked showing a void and only 1 keycard committing you to 6 as it can be a good way to get to 6 off 2 aces when partner needed 2 aces for a slam, and has the ace opposite your void.

I don't know what 4♥ is here for opener over 2N, but would be void for us (although it would show a bit more than we have on this hand).