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This is where a quantitative bid should be made. A bid of 4NT "invites" opener to: bid 6NT with a maximum holding of 14 HCP (19 + 14 = 33 which is sufficient) pass with a minimum 12 HCP (20+ 12 = only 32) with partnership agreement, bid 5NT holding 13 HCP - asking partner to bid 6NT with 20 HCP and to pass holding 19 HCP. An opening bid of 2NT ...
Norman four notrump (also Norman) is a slam bidding convention in the partnership card game contract bridge designed to help the partnership choose among the five-, six-, and seven-levels for the final contract. Norman four notrump is an alternative to the Blackwood convention family.
Slam-seeking conventions are codified artificial bids used in the card game contract bridge. Bidding and making a small slam (12 tricks) or grand slam (13 tricks) yields high bonuses ranging from 500 to 1500 points. However, the risk is also high as failure to fulfill the slam contract also means failure to score the bonus points for a game ...
An ace shown by a cuebid by either partner should not be counted in responding to the 4NT ace-asking bid. A 5NT bid after a response to a 4NT ace-asking bid, asks for kings. Partner's responses to the 5NT king-asking bid are made in step-wise fashion: 6 ♣ to indicate 0 kings; 6 ♦ to indicate 1 king; 6 ♥ to indicate 2 kings; 6 ♠ to ...
However, the 2C relay can also be used to show other hand types. For example, with Axx KQxx Axx KQJ, after partner opens 1D, we respond 1H and partner rebids 1NT, we must bid 4NT quantitative in order to invite slam. Using XYZ, after partner's 1NT rebid, we bid 2C, forcing 2D by partner, and then jump to 3NT, which shows this hand.
It shows the same two suits as 2NT would show. Note that 4NT is "unusual" only when the opponents open the bidding; otherwise, 4NT is normally played as the Blackwood convention or a quantitative invitation to 6NT. The Michaels cuebid is a similar convention which is used to show a two suiter with one or both major suits.
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).
This is a list of bidding systems used in contract bridge. [1] [2] Systems listed have either had an historical impact on the development of bidding in the game or have been or are currently being used at the national or international levels of competition. Bidding systems are characterized as belonging to one of two broadly defined categories: