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Detail specifications 71BH - Level 3

Leading against a NT contract doubled : Opps haven't bid any suit

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Leading against a NT contract: your P has doubled : Opps haven't bid any suit.
Your P has asked for a lead in a major suit, a priori . But, first of all, you should carefully examine your cards.
  • if you only have one or two low-ranked cards, then lead this suit.
  • if you have 5 cards with one or more high- ranking honors, then your P can't have . Therefore, he is signalling for CO:

SWNE
1NT
Pass
3NT
X
Pass
Pass
Pass
    
    
    
7
5
Q
J
10
7
4
2
10
9
8
7
3
QCM 3918
7 Opps haven't bid any suit. Double is asking for a lead in a major suit. Here, there is no ambiguity : with 2 low cards.
 
 
Example. Leading against a NT contract: your P has doubled : Opps haven't bid any suit.
SWNE
1NT
Pass
2NT
Pass
3NT
Pass
Pass
X
Pass
Pass
Pass
    
    
    
K
J
7
5
6
3
J
9
7
4
4
3
2
QCM 3919
6Opps haven't bid any suit. Double is asking for a lead in a major suit. Here, there is no ambiguity : with your Jack 5th in Spades, you know that your P is waiting on a lead!