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- San_Francisco_convention abstract "In the partnership card game contract bridge, the San Francisco convention is a slam bidding convention, or a special usage by partnership agreement in order to help choose among the five, six, and seven levels for the final contract. One partner bids 4NT to ask, and the other replies, in code, to show aces and kings in one bid. Thus it is an alternative to the Blackwood convention family.The San Francisco reply is usually sufficient for partner to infer the precise numbers of aces and kings in the replying hand, hence in the two partnership hands. So it is useful where partner can choose the contract level by knowing the numbers of aces and kings that are \"missing\" in the two opposing hands.The San Francisco scale is three points for an ace, one for a king. The asking bid is 4NT with these replies:5♣ : 0 to 2 points, i.e. 0 to 2 kings only5♦ : 3 points5♥ : 4 points5♠ : 5 points5NT : 6 points, i.e. two aces or one ace and three kingsetc.Except for 5♣=0–2, 5♠=5, and 6♦=8, the replies are equivocal with reference to the entire 52-card pack, but the other replies may be unequivocal given reference to another hand, typically partner's hand. For example, if partner holds two kings then 5NT must be two aces.The San Francisco replies take so much space that a weak or medium-strength hand may need to investigate slam by other methods. As slam bidding conventions at or near the 4NT level, San Francisco and Norman four notrump have been superseded by the Blackwood convention and its variants, which show at once only the number of aces or keycards, and show kings subsequently if at all.".
- San_Francisco_convention wikiPageID "14524953".
- San_Francisco_convention wikiPageLength "2802".
- San_Francisco_convention wikiPageOutDegree "12".
- San_Francisco_convention wikiPageRevisionID "675040498".
- San_Francisco_convention wikiPageWikiLink Blackwood_convention.
- San_Francisco_convention wikiPageWikiLink Bridge_convention.
- San_Francisco_convention wikiPageWikiLink Card_game.
- San_Francisco_convention wikiPageWikiLink Category:Bridge_conventions.
- San_Francisco_convention wikiPageWikiLink Contract_bridge.
- San_Francisco_convention wikiPageWikiLink Glossary_of_contract_bridge_terms.
- San_Francisco_convention wikiPageWikiLink Norman_four_notrump.
- San_Francisco_convention wikiPageWikiLink Slam-seeking_conventions.
- San_Francisco_convention wikiPageWikiLink Trump.
- San_Francisco_convention wikiPageWikiLink Useful_space_principle.
- San_Francisco_convention wikiPageWikiLinkText "San Francisco convention".
- San_Francisco_convention wikiPageWikiLinkText "San Francisco".
- San_Francisco_convention wikiPageUsesTemplate Template:Cite_book.
- San_Francisco_convention wikiPageUsesTemplate Template:Clubs.
- San_Francisco_convention wikiPageUsesTemplate Template:Context.
- San_Francisco_convention wikiPageUsesTemplate Template:Diams.
- San_Francisco_convention wikiPageUsesTemplate Template:Hearts.
- San_Francisco_convention wikiPageUsesTemplate Template:Spades.
- San_Francisco_convention wikiPageUsesTemplate Template:WPCBIndex.
- San_Francisco_convention subject Category:Bridge_conventions.
- San_Francisco_convention type Convention.
- San_Francisco_convention type Convention.
- San_Francisco_convention type Redirect.
- San_Francisco_convention comment "In the partnership card game contract bridge, the San Francisco convention is a slam bidding convention, or a special usage by partnership agreement in order to help choose among the five, six, and seven levels for the final contract. One partner bids 4NT to ask, and the other replies, in code, to show aces and kings in one bid.".
- San_Francisco_convention label "San Francisco convention".
- San_Francisco_convention sameAs Q7414149.
- San_Francisco_convention sameAs m.03d6c4j.
- San_Francisco_convention sameAs Q7414149.
- San_Francisco_convention wasDerivedFrom San_Francisco_convention?oldid=675040498.
- San_Francisco_convention isPrimaryTopicOf San_Francisco_convention.