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Detail specifications 12CF - Level 1 ★

1♦ Opener's 2nd bid after a 2♣ response (2/1)

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1♦ Opener's 2nd bid after a 2 ♣ response.
After a 1 ♦ opening and a 2♣ response, the bidding is now game forcing. The opener's initially focuses on showing his shape. The responder will then be well-placed to direct the partnership to the best contract.
The priority is to decide on the suit for the final contract.
SWNE
1
Pass
2
Pass
2
    
    
    
A
3
A
Q
6
5
6
5
K
J
8
6
4
Problem 40300: Bid 2♠. Show the 4-card major (denying 5+ diamonds). You can look for slam later (after a fit is found).
 
SWNE
1
Pass
2
Pass
2
    
    
    
K
5
4
K
J
6
5
A
5
J
10
8
7
Problem E40301 2♥Show the 4-card major (denying 5+ diamonds). This could be (and is) a dead minimum.
 
 
With a regular hand
there are 3 types of rebids after the 2/1 response:
  • 1-2 ♦ '... or 3♦) promises 5+ cards in ♦. 3♦ would show a 'solid' 6 cards suit..
  • 2- without 5 cards in ♦ the priority is to show a 4 cards major, with any strength
  • 3- 2NT
     without 5 cards in ♦ and no 4 cards major.

There’s no need to jump, since the partnership is already forced to game.
Problem E40302 2♦First priority is to show 5+ diamonds. Partner will bid a major next if he has four.
 
SWNE
1
Pass
2
Pass
3
    
    
    
A
Q
3
9
4
J
9
6
5
A
Q
8
4
Problem E40303 2NTDenying 5+ diamonds and denying a 4-card major (so, 3343 or 3244).
 
 
With an unbalanced hand
All bids at level 3 are natural:
  • 1- 3♣ with 5+ cards in ♣ and any strength.
  • 2- 3♦ to show a 'solid' 6+ cards suit..
  • 3 ♥ or 3PI- to show 'extreme' 2-suiters
     .... Typically 6-5 in ♦ and ♥ (or ♠).

There’s no need to jump, since the partnership is already forced to game.
SWNE
1
Pass
2
Pass
2
Pass
2
    
    
    
A
K
6
5
A
K
3
6
5
A
8
4
3
Problem E40307 3♠Shows an extreme two-suiter ♦ - ♠ typically 6-5 in a strong hand
 
SWNE
1
Pass
2
Pass
3
Pass
    
    
    
A
K
V
6
5
3
5
A
Q
J
8
6
5
Problem E40307 3♣Shows a minor two-suite 5+-5
 
 
Responder's rebids
the bidding is natural and the priority is define the suit where the contract will be played:
  • 1- Showing a fit in opener's first or second suit.
  • 2- 3♣ repeating his suit to show a 'solid' 6+ cards suit..
  • Bidding NT- with stoppers in all unbid suits
    .... In fast arrival or at 2NT to explore further.
  • Bidding a major with values to explore NT contract if the opener
    .... ..has repeated his ♦
  • Bidding a 4th suit forcing if none of the options above
    really fit

There’s no need to jump, since the partnership is already forced to game.
SWNE
1
Pass
2
Pass
2
Pass
3
    
    
    
A
Q
9
3
A
Q
J
6
5
K
J
8
7
Problem E40305 3♦We may be heading to 6 , but for now, let's just tell partner about our support
 
SWNE
1
Pass
2
Pass
2
Pass
3
    
    
    
K
Q
J
8
5
K
Q
J
10
9
3
2
A
Problem E40306 3♦Show your length in ♣...May still end up in NT...
 
 
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