"Equal Level Conversion" is a rebid after a takeout double to show 5-4 shape in the unbid suits. Specifically, it is used after your right-hand opponent ("RHO") opens 1H/S, you double, and partner responds 2C.

AJ43
H76
DAT953
CA5
RHO    
1H
Pass
You    
Double
2D 1
LHO    
Pass

Partner    
2C

(1) Equal Level Conversion, showing 5-4 in diamonds and spades.


93
HAJ43
DKQT53
CA5
RHO    
1S
Pass
You    
Double
2D 1
LHO    
Pass

Partner    
2C

(1) Equal Level Conversion, showing 5-4 in diamonds and hearts.


The benefit of Equal Level Conversion is increased bidding flexibility. With a 4-5 hand, you can make a takeout double with club shortness. The 2D is your outlet bid if partner happens to bid clubs.

The drawback to Equal Level Conversion is that you can no longer play 2D in the above auctions as a strong one-suiter in diamonds. You must jump-rebid 3D instead.

See also

  • Raptor 1NT
    A direct, artificial 1NT overcall that shows 4-5 shape.

  • Takeout Double
    A conventional double that asks partner to bid one of the unbid suits.

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