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Detail specifications 43SC - Level 4 ★

The Rubensohl convention after a 2♠ overcall on 1NT opening

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The Rubensohl is used by the responder after a 1NT opening and an overcall. Zia recommends that experienced players use this convention.
After a natural overcall of 2 PI:
  • - from 2NT onwards all bids are Texas transfer bids. 2NT is therefore artificial (Texas for clubs)
  • - the impossible Texas is a Stayman
  • Le cue-bid at 3 ♠ is a strong Stayman fort with a shortness in ♠
  • - the double is a takeout. It could be a Stayman with just 8HCP or show a balanced hand of 8HCP or more.
    • K
    J
    9
    A
    7
    3
    K
    Q
    10
    Q
    10
    6
    4
    SWNE
    1NT
    2
    X
    Pass
    2NT
    Pass
    Pass
    5
    3
    10
    9
    6
    5
    A
    9
    4
    K
    J
    5
    3
    Problème E9090
    X that here replaces the stayman : The opener being minimum and not fitted, the bidding will sytop at 2NT 2SA.
     
    4
    2
    Q
    J
    6
    4
    K
    Q
    9
    5
    7
    4
    3
    SWNE
    1NT
    2
    X
    Pass
    3NT
    A
    Q
    10
    10
    5
    A
    10
    6
    K
    Q
    J
    10
    6
    Problème E9052
    X Ambiguous double that here works as a Stayman : The opener, not fitted and Mawimum jumps to game at 3NT
     
     
    Texas transfer responses
    Starting from 2 NT the 3 following bids are Texas transfers.
    • 1 NT - 2 ♠ - 2 SA : Texas transfer for ♣ (it guarantees 6 cards)
    • 1 NT - 2 ♠ - 3 ♣ : Texas transfer for ♦
    • 1 NT - 2 ♠ - 3 ♦ : Texas transfer for
    • 1 NT - 2 ♠ - 3 ♥ : Impossible transfer, the resônder cannot be suggesting playing 3 ♠ . This bid shows a 5 carder in ♥, a stopper in ♠ and at least 9 HCPs 9H
    K
    6
    5
    Q
    3
    K
    J
    10
    3
    A
    Q
    8
    4
    SWNE
    1NT
    2
    3
    Pass
    3
    Pass
    Pass
    8
    7
    J
    10
    9
    6
    5
    4
    Q
    7
    6
    6
    5
    Problème E9086
    3 ♦ Texas transfer for ♥
     
    A
    7
    A
    K
    9
    7
    K
    Q
    J
    7
    8
    7
    2
    SWNE
    1NT
    2
    3
    Pass
    3
    Pass
    Pass
    5
    3
    8
    4
    5
    3
    Q
    J
    9
    6
    5
    4
    3
    Problème E9055
    3 ♣ Texas transfer for ♦ : lThe responder has only 3 points but a seven card suit . He does not want to let the opps play 2 ♠.
     
     
    The 3 ♥ is the Impossible transfer : You do not want to play in the overcaller's suit !
    It guarantees
    • 5 cards in ♥
    • a ♠ stopper

    The opener now has to choose between 3 NT and 4 ♥ !
    7
    6
    4
    Q
    10
    6
    A
    J
    A
    K
    J
    8
    4
    SWNE
    1NT
    2
    3
    Pass
    4
    Pass
    Pass
    K
    5
    K
    J
    9
    7
    4
    Q
    5
    4
    7
    6
    5
    Problème E9061
    3 ♥ Impossible transfer bid that guarantees 5 cards in ♥ and a stopper in ♠. It is now up to the opener to choose the best game !
     
     
    After the 2 ♠ overcall,the 3 ♠ bid (cue-bid) is a strong Stayman:
    • Shortness in ♠
    • Forcing to game
    The opener now must choose between 3 SA and 4 ♥ !
    J
    10
    8
    7
    K
    Q
    9
    4
    A
    7
    K
    Q
    4
    SWNE
    1NT
    2
    3
    6
    A
    J
    10
    5
    K
    J
    10
    5
    3
    A
    8
    5
    Problème 9129
    3 ♠ Le cue-bid is a strong Stayman forcing to game that promises at least 9HCP, .
     
     
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