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Detail specifications 12CF - Level 2

Opener's 2nd bid after suit (and no fit) change (1 over 1) by responder

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Opener's rebid after a level 1 minor opening and Responder's suit shift at the 1 level (no major fit)
The rebids of the Opener are :
  • bidding a new suit at the 1 level with 4 or 4 cards
  • bidding a new suit at the 2 level with a 2-suiter hand at least 5-4
  • rebidding the opening minor with a one-suiter hand
  • a NT bid with 12-14 or 18-19HCP with a regular distribution

A
K
6
4
2
A
K
Q
6
4
3
6
5
SWNE
1
Pass
1
Pass
1NT
J
8
J
10
9
7
K
Q
J
10
A
9
7
Problem E4813 1NT What else? You don't have the bidding space or points to bid your 4 cards. You need and extra 4-5HCP and 5 cards!
 
 
Opener's rebid after a level 1 opening in a minor : bidding a 2nd suit
Bidding a 2nd suit doesn't promise a two-suiter hand if it's bid at the 1 level.
  • At the 1 level : the ambiguity of a 1 or 1 rebid can cover many strength and distribution possibilities. It is above all a bid to avoid missing a fit in the majors.
  • At the 2 level, showing a two-suiter distribution at least 5-4.
      The two-suiter can be :
    • minimum with 12-17HCP
    • maximum or a jump bid with a 3rd zone hand

SWNE
1
Pass
1
Pass
1
K
8
5
4
8
2
K
Q
6
3
A
J
5
Problem 20131 1 : As Opener isn't fitted in his priority is to bid his 4 cards.
 
SWNE
1
Pass
1
Pass
2
J
9
3
A
K
J
9
7
2
A
K
10
7
Problem E5072 With a singleton and 6-4 in the minor suits, you have a very strong hand!Maximum two-suiter : your two-suiter 6-4 is worth more than a 5-4 so you can reduce the point strength you need for a maximum two-suiter. In this case 15-16HCP
 
 
Opener's NT rebid after a 1 level opening:
This bid covers 2 types of regular distribution without a 4 card major to bid at the 1 level :
  • 1NT 12-14HCP
  • 2NT 18-19HCP
Remember : Opener can't have a regular hand with 15-17HCP otherwise he would have opened 1NT!
SWNE
1
Pass
1
Pass
1NT
K
10
9
7
K
J
7
6
5
K
Q
J
10
Problem E4759 With this hand a 1NT rebid is better than 2. 5422 distributions are considered to be regular if the 5 carder suit is a minor.
 
SWNE
1
Pass
1
Pass
2NT
A
J
9
Q
7
A
Q
J
9
4
3
K
6
Problem E5951 2NT in order to protect all your honors and show your 3rd zone hand. Your hand is easily worth 18HCP with this very "nice" 6 card minor
 
 
Rebidding the opening minor
Rebidding the opening minor without a jump shows 12-14HCP with 5 or 6 cards in the bid suit.
  • If Responder has bid the suit 1 level ranked above opening minor, then Opener has 6 cards
  • If the Responder hasn't bid the suit at 1 level ranked above opening minor, Opener may only have 5 cards ...because the Opener doesn't have any other bid.
Rebidding the minor with a jump to the 3 level shows a one-suiter hand in the 2nd zone.
SWNE
1
Pass
1
Pass
2
A
5
6
4
A
Q
10
8
7
3
J
7
5
Problem E20132 2 You don't have any other bid possible. After Responder's bid, suit ranked one bidding level higher than your opening suit () rebidding your suit guarantees 6 cards.
 
SWNE
1
Pass
1
Pass
2
10
8
3
5
A
Q
J
9
8
K
Q
9
8
Problem 20133 When Responder has bid a suit not ranked one bidding level higher than opening suit, rebidding your minor doesn't guarantee 6 cards. However, distribution is irregular.