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The unusual notrump applies the principle that when the natural meaning of a bid is not generally very useful, it is profitable to agree that it means something somewhat opposite. That is, while natural notrump bids show a strong hand with balanced distribution, the unusual notrump shows a weak hand with very unbalanced distribution.
A bidding convention initiated by responder following partner's notrump opening bid that requests opener rebid in the suit ranked just above that bid by responder, i.e. a response in diamonds requests a rebid in hearts and a response in hearts requests a rebid in spades; other responses may carry other meanings; designed to make the stronger ...
A bid of five notrump shows either: Any two aces, or; One ace, and the kings of all suits previously bid by either partner. A bid of a new suit shows first-round control (ace or void) there, but is not compulsory with such a holding. Six of a previously bid suit shows a desire to play there (holding one ace, or the kings of all bid suits).
XY Notrump gives very good control finding both games and slams, as the final "mission" of the sequence is established at a relatively early stage of bidding. Playing, as very common in combination with XY no trump, the Walsh convention or even Transfer Walsh , one still has the chance of stopping in 2 ♦ on weak hands, often impossible using ...
In contract bridge, an asking bid is a convention used to seek a slam accurately. There are two types - suit asking bids and notrump asking bids. Constructed by bridge pioneer Ely Culbertson in the 1940s, they have been superseded by other methods; however, one remaining commonly used asking bid is the 5NT Grand slam force.
This convention is an application of the Useful Space Principle and where a meaning is assigned to all available bids and therefore no bidding space is wasted. In some auctions there is an advantage to the opening team taking away bidding space from the overcalling team. [ 7 ]
The dynamic one notrump opening indicates either: a balanced or unbalanced hands in the range of 19-21 high card points (HCP) and six controls, or; an unbalanced hand just short of a 2 ♣ opening. The most common responses to the dynamic one notrump opening are: 2 ♣ – negative (0-5 HCP) 2 ♦ – 6+ HCP, game force.
Kamikaze 1NT is a preemptive 1NT opening in the game of contract bridge and in common practice [1] shows a balanced hand with 10-12 high-card points (HCP) - also known as the mini-notrump range. [1] It is used in first or second seat hoping to make 1NT opposite an average hand of about 10 HCP.