Monday, October 17, 2016

How Does Responder Force Over 1NT?

Most of the time when Partner opens the bidding and you respond, Partner will limit their hand on their rebid. Once they do that, most of the time you, as Responder, should know where to place the contract.

For example, you hold this hand and Partner opens the bidding 1:
♠AQJ932
9
AT7
♣QJ9

You respond 1♠ and Partner then bids 1NT. What is your bid?

Partner is showing a minimum, balanced opening hand. You also have an opening hand. You have enough for a game but not a slam. You know you have a ♠ fit because Partner should have two of them and you have six. So your bid is 4♠.

Let's take another hand. This time Partner opens 1:
♠QJ93
Q962
A7
♣KJ9

You respond 1 (with two four card majors bid them up the line) and Partner then bids 1NT.

Partner is showing a minimum, balanced hand. You also have an opening hand. You want to be in game. You tried to find a 4-4 fit but Partner didn't show support. You'd like a 4-4 ♠ fit but Partner could have bid 1♠ over your 1 bid and didn't. Partner does not have four ♠ so you do not have a fit there either. But your hand is balanced and since you want to be in game you bid 3NT. Pretty easy.

Now let's take a look at some more difficult hands to bid.

Partner again opens 1:
♠KJ932
9
T7
♣QJ963

You respond 1♠ and Partner bids 1NT. Balanced hand with 13 or 14 HCP. (After all with 15 HCP they would have opened 1NT.)

Not quite as easy. You know you DON'T want to play in NT -- your hand is too unbalanced. You know you have a fit in one of the black suits but not sure which one. You also don't have very many points so you don't want to get too high. On this hand you can bid 2♣. This is a NON-FORCING bid. Partner is allowed to Pass. In fact, Partner is either supposed to Pass or bid 2♠. That's it. Those are their only choices.

So far, so good. But now what about this hand?

Partner opens 1:
♠AQJ92
9
A7
♣QJ963

You respond 1♠ and Partner bids 1NT. Balanced hand with 13 or 14 HCP. (After all with 15 HCP they would have opened 1NT.)

You know you'd prefer not to play in NT -- your hand is too unbalanced. You'd like to find a 5-3 ♠ fit. But you do have the values for a game so if you can't find a 5-3 ♠ fit you don't mind playing in 3NT. At least you will have bid a game. But how do you show only 5 ♠ on this auction?

2♠ shows a weak hand with six ♠
3♠ shows an intermediate hand with six ♠
4♠ shows a game forcing hand with six ♠

All these bids show a six card suit. How do you show a five card suit?

Bid another suit.

Once you take Partner out of their NT contract they will know you are unbalanced. If you were unbalanced because you had six ♠ you would have rebid your ♠ suit. If you were to bid another suit you would show at least another four card suit. But if you only had two four card suits your hand would be balanced and want to play in NT. So you must also have a five card suit along with your other four (or more) card suit. You would bid your longest suit first so your first suit bid must have five cards and your second suit bid would have at least four cards.

Therefore, in the auction, you need to bid your ♣ suit. But you can't just bid 2♣. That is a non-forcing bid remember. Partner can Pass. In order to force Partner to bid you need to jump to 3♣.

This does several things:
It puts a game force on the auction. No one is allowed to Pass below game.
It shows an unbalanced hand that does not want to play in NT -- probably five ♠ and four ♣ since with a single suited unbalanced hand you would just rebid your suit.

So back to that hand:
♠AQJ92
9
A7
♣QJ963

Partner opens 1. You respond 1♠ and Partner bids 1NT. You rebid 3♣. Now at this point Partner probably does one of two things:

Partner bids 3♠. This tells you that Partner has three ♠ for you. If they had four ♠ they would have supported you right away. But when they bid NT they already showed they had two ♠. They need at least two cards in every suit to be balanced. So after Partner bids 3♠ you can bid 4♠.

If Partner instead responds 3NT you do not have a ♠ fit. Just Pass.

RULE:
In an auction where Opener has limited their hand by bidding 1NT Responder must JUMP in a NEW, lower ranking SUIT in order to force Opener to bid again. This creates a GAME FORCE on the auction. No one is allowed to Pass a bid below game.

Opener Responder
1♣ 1
1NT 3 This is GAME forcing -- Responder JUMPED in a NEW, lower ranking suit over Openers 1NT rebid. Opener MUST respond.


Opener Responder
1♣ 1
1NT 3♣ This is invitational -- Responder JUMPED in a suit that was already bid. Opener can Pass.


Opener Responder
1♣ 1
1NT 3 This is invitational -- Responder JUMPED in a suit that was already bid. Opener can Pass.


So with that in mind what do you respond with each of these hands when your Partner opens the bidding 1, you respond 1♠ and Partner rebids 1NT? What does that tell Partner?

Hand 1

♠KJ873
AKJT9
J
♣94



Hand 2

♠QT842
K6
6
♣QT982



Hand 3

♠AQT54

A932
♣KQT2



Hand 4

♠J7643
75
A
♣Q9764



Hand 5

♠AK862
AT5
9
♣A943



Hand 6

♠AT853
AQ632
A3
♣J



Hand 7

♠Q7654
5
J3
♣KJ832



Hand 8

♠AKJ64
T
A32
♣KT85



Hand 9

♠AKQ94
832
2
♣KJ64



Hand 10

♠AT765
7
KQ7
♣AJ83



Hand 11

♠KQ953
7
T7
♣Q8642



Hand 12

♠JT754
42
Q
♣KJ852



Hand 13

♠AQT98
KJ84
6
♣K75



Hand 14

♠Q9743
2
84
♣AJ742



Hand 15

♠KT652
KJ43
KQ
♣A8



Hand 16

♠Q9732
KQ74
T
♣864



Hand 17

♠AJ642
K4
K3
♣K853



Hand 18

♠QT652
AKJ5
A65
♣7



Hand 19

♠Q9742
QT532
Q5
♣8



Hand 20

♠AQT52
AQ73
KT
♣J5



Hand 21

♠J8642

J82
♣AJ532



Hand 22

♠AJT64
K95
6
♣AQT4



Hand 23

♠A9432
J5
8
♣QT765



Hand 24

♠K9762
KJ873
63
♣T



Hand 25

♠AQ962
73
74
♣AKQ2



Hand 26

♠AT532
86
9
♣KQ852



Hand 27

♠J8732
A65

♣QJ743



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