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Larry's Bridge Quizzes
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Negative Doubles


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There is no more important convention in bridge. A negative double is made by East in this auction:

WestNorth   East      South
 1 of a suit    Any suit overcall      Double     

Only the partner of the opening bidder can make a Negative Double.

What does it show? Enough to respond (the higher the level, the more the requirements). On the 1-level, it can be made with as few of 6 points. There is no upper limit. A negative double can be made with 20 or more points!

It shows the "other suits" with the focus on the other major. There are 2 specific auctions where the Negative Double comes with guarantees:

WestNorthEastSouth
 1♠ 1♠ Double  

This Negative Double guarantees both majors (at least 4♠ and at least 4♠).

WestNorthEastSouth
 1♠ (or 1♠) 1♠ Double  

This Negative Double (after a 1♠ overcall) guarantees exactly 4♠ (not 3, not 5). A 1♠ bid would guarantee 5 or more spades.

You are responder after your partner has dealt and opened 1♠. What is your call after RHO overcalls 1♠?

♠ AQ76  
♥ K32  
♦ 32  
♣ J765
 

Your Choice:

Pass

Double

1♠

Club Raise

You are responder after your partner has dealt and opened 1♠. What is your call after RHO overcalls 1♠?

♠ AQ76  
♥ K32  
♦ 32  
♣ J765
 

Your Choice:

Pass

Double

1♠

1NT

Other

You are responder after your partner has dealt and opened 1♠. What is your call after RHO overcalls 1♠?

♠ AQJ1076  
♥ 8732  
♦
♣ A5
 

Your Choice:

Pass

Double

1♠

2♠

You are responder after your partner has dealt and opened 1♠. What is your call after RHO overcalls 3♠?

♠ AQ76  
♥ K32  
♦ 32  
♣ A765
 

Your Choice:

Pass

Double

3♠

3NT

Club raise

You are responder after your partner has dealt and opened 1♠. What is your call after RHO overcalls 1♠?

♠ 63 
♥
♦ QJ976
♣ J7652
 

Your Choice:

Pass

Double

2♠

2♠