What is this convention

Subject:What is this convention
Date:Tue, 9 Feb 2010 10:26:38 -0800 (PST)
My cue bids below game are normally aces but I know many here like to
cue bid a first or second round control (normally Ace or King). I
remember a convention where your bids show controls in more than one
suit. I can best explain by giving an example. Suppose the bidding
goes 1S-3S then opener's bids have the following meaning

3NT - no first or second round control in clubs
4C - first or second round control in clubs but no first or second
round control in diamonds
4D - first or second round control in clubs and diamonds but no first
or second round control in hearts
4H - first or second round control in clubs, diamonds, and hearts

responder continues in the same manner. For example after opener bids
3NT then responder bids
4C - shows first or second round control in clubs but not in diamonds
4D - shows first or second round control in clubs and diamonds but not
hearts
4H - shows first or second round control in clubs, diamonds, and
hearts
4S - denies first or second round control in clubs

The benefit of the system is to stop in game if a suit is open (and of
course the downside is you tell the opponents what suit that is).

Does anyone know what this convention is called? Second, why isn't it
more popular with those that like to show first or second round
control cuebidding?

Nick France



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