[BunnyGo]

My teammates came back from a swiss event and informed me of an unusual sequence their opponents had had. We were unable to figure out what the bids should mean in a 2/1 structure:

1S-1N (Forcing)
2S-3D
3H-4C
4S

[qwery_hi]

I'm really streching here, but I'd guess N has - KQxx JTxxxx Axx or even - KQxx JTxxxxx Ax

It makes absolutely no sense for 4C to be a suit, it only can be a cue , and that in turn would mean N hand has improved to such an extent that it went from willing to play in 3D to a semi serious slam try in hearts.

Either this or the opponents have no freaking clue what they are doing.

BunnyGo, on 2011-July-25, 06:58, said:

My teammates came back from a swiss event and informed me of an unusual sequence their opponents had had. We were unable to figure out what the bids should mean in a 2/1 structure:

1S-1N (Forcing)
2S-3D
3H-4C
4S

[wyman]

qwery_hi, on 2011-July-25, 07:08, said:

I'm really streching here, but I'd guess N has - KQxx JTxxxx Axx or even - KQxx JTxxxxx Ax

It makes absolutely no sense for 4C to be a suit, it only can be a cue , and that in turn would mean N hand has improved to such an extent that it went from willing to play in 3D to a semi serious slam try in hearts.

Bayesian prior for this is about 5-10%.

Quote

Either this or the opponents have no freaking clue what they are doing.

Bayesian prior for this is about 90-95%.

btw, I agree that 4C is a cuebid; responder's hand got awesome when he heard 3H.

[matmat]

I think 3♦ is non-forward going. I expect responder to have something like 0472 or 0463 with a maybe ♦KJ and ♣K.
Opener is showing extras by bidding over 3♦, sounds like a 74 or 64 hand in the majors (the latter of which unclear why it didn't rebid ♥ with extras). 4♣ should be a cue for ♥.

the auction smells

[gordontd]

BunnyGo, on 2011-July-25, 06:58, said:

My teammates came back from a swiss event and informed me of an unusual sequence their opponents had had. We were unable to figure out what the bids should mean in a 2/1 structure:

1S-1N (Forcing)
2S-3D
3H-4C
4S

My guess is that they were 7411/6412 opposite 1165.

Not that I think that's what that auction should show.

[gnasher]

3♥ shows a diamond fit and heart concentration. 4♣ is a Bluhmer, as is 4♠. How else do you bid J10xxxx AKQ KJx x opposite - xxx AQ10xxxx xxx?

[gordontd]

gnasher, on 2011-July-25, 08:23, said:

3♥ shows a diamond fit and heart concentration. 4♣ is a Bluhmer, as is 4♠. How else do you bid J10xxxx AKQ KJx x opposite - xxx AQ10xxxx xxx?

The only problem with this explanation is that the opening post gives the impression that the auction ended at 4♠

[aguahombre]

gordontd, on 2011-July-25, 08:39, said:

The only problem with this explanation is that the opening post gives the impression that the auction ended at 4♠

You might be right, but not seeing a "P", I thought the auction was still alive and agree with Gnasher. Alternatively, the opening bidder WAS Gnasher, and his pard passed 4S for a big accident.

[semeai]

gnasher, on 2011-July-25, 08:23, said:

3♥ shows a diamond fit and heart concentration.

I agree, or at least passable diamonds and heart concentration.

Quote

4♣ is a Bluhmer

Fair enough, if you remember or can work out such things. Possibly more mundanely a cue with a hand that is now good, but they're not so different that it's likely to matter too much if partner interprets it as the wrong one.

Quote

as is 4♠

!

Even if I remembered or worked out that 4♣ is/could be/should be a Bluhmer bid, I'd have to reserve 4♠ as a suggestion to play there.

Possibly:

KQJ10xx AQx Axx x

edit - this is too good. maybe KQJ10xx KQx Axx x?

opposite

- Jxx KJxxxxx Axx

This is not what I'd guess they had, of course.

[TWO4BRIDGE]

matmat, on 2011-July-25, 08:11, said:

I think 3♦ is non-forward going. I expect responder to have something like 0472 or 0463 with a maybe ♦KJ and ♣K.
Opener is showing extras by bidding over 3♦, sounds like a 74 or 64 hand in the majors (the latter of which unclear why it didn't rebid ♥ with extras). 4♣ should be a cue for ♥.

the auction smells

I think Mat's analysis is " spot on " !

[P_Marlowe]

Hi,

The first question to answer is, what is the meaning of 3D?
Does it show a a weak or inv. single suited hand?

2S did already limit openers hand, so vs. a weak single suited hand,
the auction does not exist.
Vs. a inv. single suiteed hand, 3H is showing values looking for 3NT,
but could be a cue for diamonds, 4C is a cue in case 3H was an adv.
cue for diamond support, 4S a suggestion to play.

With kind regards
Marlowe

[aguahombre]

P_Marlowe, on 2011-July-25, 09:51, said:

2S did already limit openers hand, so vs. a weak single suited hand,
the auction does not exist.
With kind regards
Marlowe

This is a reference to the style where an immediate jump to 3m over 1M shows about 10-12 and length in the minor, so responder cannot have that hand in the given case if that is their agreement.

If an immediate 3D invite was not available, the given 3D rebid by responder cannot be weak. The weak single-suited hand would have passed 2S, or might have been able to show the weak one directly.

[Phil]

My take?

3♦ shows at, or close to an invitational hand. The reference to AQTxxxx and out isn't that far off, but I'd expect HHxxxx plus another A/K.

3♥ is a stopper for NT. 4♣ says, 3N isn't our spot, but I'm showing you this Ace along the way to 5♦. I think its too obscure that 4♣ is a Bluhmer since opener hasn't said that much about shape.

4♠ is fuzzy but without a firm agreement I think its a last ditch effort to play a 6-1.

[FrancesHinden]

If I had that auction with my semi-forcing 1NT partner then

3D = natural constructive
3H = good hand for diamonds
4C = choice of games
4S = OK

when both hands have made non-forcing bids, we use the 'cue' as choice of games. I've got a jump to 4NT available to show a suddenly surprisingly good hand (I have bid a slam starting 1S - 1NT - 2H (NF) - 2S - 3D - 4NT (good 5D bid with no club control) - 6D)