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Detail specifications 12GA - Level 1

Two-suiters

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Two-suiters
A hand is a two-suiter if it contains: one suit of at least five cards and another of at least four
To describe his two-suiter, the opener must bid his second suit at level 2 (or3).
SWNE
1
Pass
1
Pass
1
Pass
3
Pass
Pass
K
8
5
4
8
2
K
Q
6
3
A
J
5
Problème E4673
1 spade The second suit bid by the opener at level 1 doesn't promise a two-suiter. He doesn't have a 5-card suit
 
SWNE
1
Pass
1
Pass
1
10
8
7
4
A
Q
4
2
A
K
10
9
8
Problème E1212
1 spade The opener calls a second suit, not a two-suiter. The responder cannot know there are five diamonds.
 
 
There are three types of two-suiter:
  The minimum two-suiter, non-forcing with 12-17HCP. This allows the responder to stay at the two level when returning to the opening suit.
  The reverse, forcing for a round with 17HCP or more. The second suit, bid at level 2, is higher-ranking than the first. The responder is thus obliged to jump a level to return to the opening suit.
  The jump reverse, game-forcing, as from about 20HCP.
SWNE
1
Pass
1
Pass
2
6
4
7
4
K
J
9
7
A
K
J
10
9
Problème E1195
2 clubs A minimum two-suiter. The responder can return to diamonds (the opener's first suit) at level 2
 
SWNE
1
Pass
1
Pass
2
J
9
4
A
K
J
9
5
A
K
Q
9
8
Problème E4829
2 hearts Opener's reverse. The responder will have to go to the three level to return to the opener's first suit.
 
 

SWNE
1
Pass
1
Pass
1NT
6
4
A
Q
9
8
9
7
A
K
10
9
5
Problème E4830
1NT It's impossible to announce hearts. Two hearts would mean at least 17HCP...