Turbo Convention by Bridgeguys
This conventional method was designed to be employed with the Neapolitan Cuebid, which shows a first or second round control after a suit-fit has been established. The Neapolitan Cuebid is a feature of the Neapolitan System, which was principally developed by Mr. Eugenio Chiaradia, but which in later years was further revised by Mr. Benito Garozzo in 1965 and which was renamed by him as the Blue Team Club.
This conventional method, which is incorporated in the Blue Team Club, then allows the bidder to inform the partner about the number of Aces and/or Key Cards held.
The fundamental concept of the Turbo convention is that the partner rebids 4 No Trump to show an even number of Aces and/or Key Cards. This may only occur after a cuebid has been made showing a first or second round control after suit establishment. If the partner rebids higher than 4 No Trump, then this action shows an odd number of Aces and/or Key Cards and also a first-round control in that named suit. The bid, therefore, of 4 No Trump does not ask for the number of Aces and/or Key Cards, but rather shows a definite number of Aces and/or Key Cards.
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