Some bidding discussion

[fweng322]

Hi,

 

 

In today's another hand, our bidding was like this:

(I sit at South and my partner at North)

 

N E S W

1N - 2H! - (2H: Jacoby transfer)

2S - 2N (bidding not done yet)

 

 

What do you think this 2N mean?

 

 

 

 

 

 

 

 

 

 

 

At that hand, my hand was like this:

 

S Axxxx

H Jxx

D Axxx

C x

 

9 HCPs with 5 spades only. And the bidding was:

 

N E S W

1N - 2H! - (2H: Jacoby transfer)

2S - 2N -

3N - - =

 

And we made 3NT with 24 HCPs only.

 

We also discussed some bidding after Jacoby transfer.

 

What do you think this 4S mean if we also use Texas transfer?

 

1N - 2H -

2S - 4S

 

4S should not mean to play 4S since if I got a hand like that, I should use 4H to transfer directly.

 

However, If 4S is a slam interest, what if I use 3S here:

 

1N - 2H -

2S - 3S

 

I think that if I have slam interest, I should use 3S to preserve bidding space. We can show control at 4 levels. My partner thinks that 3S should be invitation, and 4S is slam interest.

 

What do you think?

[ArtK78]

In the auction:

 

1NT - 2♥

2♠ - 2NT

 

2NT shows an invitational to game strength hand with 5 spades.

 

1NT- 2♥

2♠ - 3♠

 

shows a hand with invitational to game strength with 6 or more spades.

 

These are standard definitions that are probably nearly universal.

 

As for:

 

1NT- 2♥

2♠ - 4♠

 

If you play 4 level transfers, then this sequence typically shows a hand with some mild slam interest with 6 or more spades. You would use the 4 level transfer with a hand that wants to play 4♠ and has no slam interest. You would also use the 4 level transfer on a hand that wants to play in spades and wants to ask for key cards, following up on partner's 4♠ bid with 4NT.

 

This last auction has been discussed in a number of threads, and some are critical of the standard definition of "mild slam interest."

[Endymion77]

The common agreements are:

 

 

1NT - 2♥

2♠ - 2NT

 

Invitational, 5 spades

 

--

 

1NT - 2♥

2♠ - 3♠

 

Invitational with 6 spades

 

--

 

1NT - 4♥

4♠

 

Texas transfer, to play with no slam interest (or if you continue with 4NT, it's RKCB for spades)

 

--

 

1NT - 2♥

2♠ - 4♠

 

Mild slam interest (invitational to 6♠) with no shortness (you can splinter with shortness)

 

--

 

1NT - 2♥

2♠ - 4NT

 

Quantative invitation to 6NT (or 6♠) with 5 spades.

[mcphee]

2NT shows your invite hand and 5 trumps. A simple transfer at 2 level and follow up with a direct raise to game in your suit generally indicates slam interest and no shortness. A texas transfer SETS trumps after which key card applies.

[lowerline]

Using 1nt-2♥-2♠-3♠ to show slam interest is actually not a bad idea... You will have to find another way to bid the invitational hands then (like bidding 3♦ with those).

 

Steven

[Endymion77]

You can also keep 1NT - 2♥ - 2♠ - 3♠ as invitational, and play the following with slam interest:

 

1NT - 3♦ = slam interest in hearts, balanced hand (otherwise transfer and splinter)

1NT - 3♥ = slam interest in spades, balanced

 

Then direct 4♥/4♠ by opener is declining the invitation (soft values, bad fit), cheapest cuebid/"Serious 3NT" shows an in-between hand and accepting the transfer at 3 level (3♥/3♠) is the strongest response.

[Zelandakh]

Others have already answered the OP question so I will follow up on the tangent of alternatives:

 

You can also keep 1NT - 2♥ - 2♠ - 3♠ as invitational, and play the following with slam interest:

 

1NT - 3♦ = slam interest in hearts, balanced hand (otherwise transfer and splinter)

1NT - 3♥ = slam interest in spades, balanced

 

Then direct 4♥/4♠ by opener is declining the invitation (soft values, bad fit), cheapest cuebid/"Serious 3NT" shows an in-between hand and accepting the transfer at 3 level (3♥/3♠) is the strongest response.

Somewhat simpler is to play 1NT - 3♥ as slam interest with hearts and 1NT - 3♠ as slam interest with spades. You can still play Serious/Frivolous over these if desired. I am not sure that 3 different levels are required for an Opener already reasonably defined by the 1NT bid.

 

A more complicated solution is to play 1NT - 2♥; 2♠ - 3♦ as showing spades and clubs and 1NT - 2♥; 2♠ - 3♣ as being either spades and diamonds or a one-suited slam hand with spades. This method has the benefit of freeing up the immediate 3 level responses for something else but you have less space when the second suit is clubs.

 

A similar structure is possible when the major is hearts by giving the 2♠ rebid multiple meanings (1NT - 2♦; 2♥ - 2♠ = natural 2NT rebid; or hearts and clubs; or one-suited slam hand with hearts). Another common way of playing this 2♠ rebid is as any invite, typically a natural 2NT rebid or an invitational 3m rebid. Then a 2NT rebid can show clubs, a 3♣ rebid can show diamonds, and 3♦ might be used for the slammy one-suiter. The latter is not possible in my structure, since I also have invitational 5♥4♠ and GF 5♥5♠ hands channelled through the 2♦ response and that does not leave enough space.

[barmar]

If you need help understanding these bids in standard methods, you should be posting in the Beginner/Intermedia forum -- these are really basic sequences.

[ggwhiz]

As for:

 

1NT- 2♥

2♠ - 4♠

 

The only modification I can add is that we play frequent super accepts of a transfer where the 1nt opener jumps to 3♠ or bids 2nt with a max. and various 3-4 card spade fits or bids a new suit with 3 spades and a 5-bagger.

 

That makes the 4♠ bid here a "sorry you didn't super accept" bid to play. I can't remember a bad score when 3♠ was too high or getting to the wrong spot when the responder has to bid a new suit (sometimes an advanced cue) instead to invite slam. I'm sure we've had a few but so rare they didn't register.