How to bid this hand to it's full conclusion?

[InTime]

[hv=pc=n&w=shak543djcaqjt962&e=skqt42hqj86dat3ck]266|100[/hv]

North/South keeps quiet throughout the auction.

Playing 2/1, how do you bid this hand to it's full conclusion?

East opens 1♠, EW Vul.

Regards

[Fluffy]

If I start with 2♣ it will be very very easy:

 

---1♠

2♣-2♥

3♥-4♣ (No spade cuebid where partner might have shortness, no shortness cuebid where partner is long, this means that 4♣ must be ♣K and no ♠A allowing blackwood later)

4♦-4♠

4NT-1 ace

♥Q?-yes with ♠K

7♥

 

However I might start with 2♥, hard to tell, I never had a 7-5 hand as responder so I can't tell you objetivelly.

[TWO4BRIDGE]

I can't improve on Da Fluster's .

[mikeh]

Close to fluffy's, but I think he has an unnecessary step:

 

1♠ 2♣

2♥ 3♥

4♣ 4N

 

The only judgment issue is the choice of 4♣ as the cue. I am a strong believer that the first cue in partner's suit is always strength-based, not length-based. I would never make my first cue on a stiff or void in partner's suit, and this hand is a classic example of why.

 

If we allow West to draw the inference that the club cue denies the spade A, as I think it has to, then why waste time with a meaningless 4♦ cue? The only question we have at the point of 4♣, is whether partner holds the heart Q....I mean we'd like to know if he has 5 hearts or the J as well, but we can't find out anyway....the heart Q makes us at least 68% for the grand...so haul out keycard.

 

BTW, the idea of responding 2♥ to 1♠ makes me feel quite ill.

[mtvesuvius]

I'd duplicate Mike's auction I think -- The choice not to cue 3♠ might be a bit difficult for me, however even if E were to do so, I think they could still find the grand via Exclusion (4♠ over 3♠ should be ERKC)

[TWO4BRIDGE]

I'd duplicate Mike's auction I think -- The choice not to cue 3♠ might be a bit difficult for me, however even if E were to do so, I think they could still find the grand via Exclusion (4♠ over 3♠ should be ERKC)

I don't know if the Meckwell agreement applies to this auction when 1S is responded, but when Hts are agreed, 4S! = kickkback RKC for Hts and 4NT! becomes Voidwood for Hts, excluding the Sp Ace.