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  2. Blackwood convention - Wikipedia

    en.wikipedia.org/wiki/Blackwood_convention

    Partner's responses to the 4NT ace-asking bid are made in step-wise fashion: 5 ♣ to indicate 0 or 4 aces; 5 ♦ to indicate 1 ace; 5 ♥ to indicate 2 aces; 5 ♠ to indicate 3 aces; When responding, do not count a void as an ace. Generally, 4NT is ace-asking when your side has bid a suit. There are exceptions:

  3. Glossary of contract bridge terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_contract...

    A mnemonic for the original (Roman) response structure to the Roman Key Card Blackwood convention. It represents "3 or 0" and "1 or 4", meaning that the lowest step response (5 ♣) to the 4NT key card asking bid shows responder has three or zero keycards and the next step (5 ♦) shows one or four. 1430 or 1430 RKCB

  4. Byzantine Blackwood convention - Wikipedia

    en.wikipedia.org/wiki/Byzantine_Blackwood_convention

    In addition, after a response to four notrump has been made, a bid of five notrump asks for additional high card features. A king or doubleton king-queen not already shown in response to four notrump counts as one feature; a guarded king-queen combination not already shown count as two features. The responses are: 6 ♣ shows 0 or 3 features

  5. Grand slam force - Wikipedia

    en.wikipedia.org/wiki/Grand_slam_force

    The Grand Slam Force is a bidding convention in contract bridge that was developed by Ely Culbertson in 1936. [1] It is intended to be used in cases where the combined hands of a partnership are so strong that a slam (winning at least 12 tricks) is a near-certainty and a grand slam (winning all 13 tricks) is a possibility.

  6. Strong two clubs - Wikipedia

    en.wikipedia.org/wiki/Strong_two_clubs

    3 ♦ or higher, etc. on up the line. With ace-showing responses, the responder bids the suit of the Ace, 2NT with two or more kings, and 2 ♦ with a king or less. With (unlikely) 2 aces, the responder bids 3 ♥. As a corollary, subsequent Blackwood by the opener asks for kings rather than aces.

  7. MIT's enrollment of Black, Latino students drops after ...

    www.aol.com/news/mits-enrollment-black-latino...

    The proportion of Asian American students in the incoming class rose from 41% to 47%, while white students made up about the same share of the class as in recent years. MIT ad.

  8. Simple random sample - Wikipedia

    en.wikipedia.org/wiki/Simple_random_sample

    An example would be if the students in the school had numbers attached to their names ranging from 0001 to 1000, and we chose a random starting point, e.g. 0533, and then picked every 10th name thereafter to give us our sample of 100 (starting over with 0003 after reaching 0993).

  9. Norman four notrump - Wikipedia

    en.wikipedia.org/wiki/Norman_four_notrump

    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 ...

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