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Several versions of Blackwood are available: Standard Blackwood, Roman Blackwood and Roman Key Card Blackwood (RKC or RKCB). All versions are initiated by a bid of four notrump (), and the entire family of conventions may be called Blackwood 4NT in both versions, or Key Card 4NT in the key card variation.
Norman four notrump is an alternative to the Blackwood convention family. Used when the contract level can be better determined by knowing the numbers of aces and kings that are "missing" in the partnership's two hands, the convention is initiated by a bid of 4NT to ask that partner provide information about his ace and king holdings. The ...
Byzantine Blackwood is a bidding convention in the game of bridge. Devised by Jack Marx , it is a complex version of the Blackwood convention (by which a four notrump (4NT) call asks about partner 's honor card holdings). [ 1 ]
The Carrot 4NT slam-convention was developed in Carrot Club, but can be used in any bidding system instead of the more common Blackwood or RKC conventions. It is a refinement of an older convention, Culbertson 4NT. Rather than asking for Aces or keycards, 4NT is used to show number of keycards.
This is similar to Blackwood but the ace-asking bid is 4 ♣ rather than 4NT. The responses are 4 ♦ for 0 or 4, 4 ♥ for 1, 4 ♠ for 2, and 4NT for 3. Similarly, a 5 ♣ bid following an ace-ask asks for kings. Gerber is a jump bid to 4 ♣ used after a notrump opening bid and on other occasions by partnership agreement.
Trump's executive order on Tuesday also asks Secretary of State Marco Rubio to review and report back to him on international organizations, conventions, or treaties that "promote radical or anti ...
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.
Playdom has created a second hidden object game called Blackwood & Bell Mysteries to follow the success of their hit Facebook game, Gardens of Time, which in turn, had inspired Zynga's Hidden ...