Weak Twos are opening bids that show 5-10 high card points and six cards in the bid suit. Ideally, opener has concentrated strength in his six-card suit and nothing in the other suits. The classic weak two bid looks something like this:

AQJTxx
x
xxx
xxx

By opening 2 you make it harder for the opponents to find a fit in one of the other suits. See also the Rule of 2, 3 and 4, which is a guideline for determining when to open a weak two.

A weak two bid usually does not contain a side four-card major, although this is up to partnership agreement. The reason it is dangerous to preempt with a side four-card major is because the partnership may miss a good fit in that major, perhaps even a game contract, while they may have no fit in the weak two suit and may languish there.

Also, while the SAYC bidding system espouses 5-11 HCP as the range for a weak two, this technically conflicts with the Rule of 20. If you have 11 points and a 6-card suit, then you must have a 3-card side suit (or longer). Add that up and you get 20 points. So it's worth deciding if you and your partner want to open 11-pointers as a weak two.


Responses to a Weak Two

  • A simple raise is called Raise Only Non Forcing. It shows 3 or 4-card support and approximately 6-13 points (insufficient values for a game contract). It is preemptive and completely non-forcing.

  • A jump raise usually shows a weak, preemptive hand (with at least 4-card support). It is also common to make a 4/ jump raise with 5-card support regardless of strength. However, a major suit jump raise may also be made by a strong hand that believes the game contract will succeed.

  • A new suit is natural and forcing for one round, typically showing at least a 5-card suit and denying support for partner's suit. However, this is up to partnership agreement; some pairs prefer to play a new suit as a non-force.

  • 2NT is a strong, artificial forcing bid. It is most frequently used when responder has 3+ card support. Opener is asked to show a feature in a side suit, i.e. an ace or king, by bidding that suit at the three level. Examples:


    2 : 2NT
    3

    3 shows the ace or king of clubs.

    2 : 2NT
    3

    3 shows a minimum hand with no side suit features.

    See also Ogust, a convention with more detailed responses to 2NT.

    In competition, the artificial 2NT response and rebids are on.


Example Auctions

AJ3
H52
DT942
CK542
  
West    
Pass
North    
2 1
East    
Pass
You    
3 2


1 Weak.
2 An obstructive raise. Non-forcing.


AKJ
HAT3
DK9652
C42
  
West    
Pass
North    
2 1
East    
Pass
You    
2NT 2


1 Weak.
2 Artificial and forcing. With game-invitational values, South plans to rebid 4 unless partner shows a minimum hand via a 3 bid.


AKJ2
HKQJ5
D6
CK743
  
West    
Pass
North    
2 1
East    
Pass
You    
4 2


1 Weak.
2 A strong raise to game. However, this bid can also be preemptive with a weak hand and 4+ card support.

See also

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