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Namespace Prefixes

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Statements

Subject Item

dbr:Rule_of_10-12

rdf:type

yago:WikicatBridgeLeads yago:Abstraction100002137 yago:Advantage105155821 yago:Attribute100024264 yago:Lead105157143 yago:Quality104723816 yago:Asset105154517

rdfs:label

Rule of 10-12

rdfs:comment

In contract bridge, the Rule of 10-12 is applied when the opening lead is the third or the fifth best from the defender's suit. By subtracting the rank of the card led from 10 or 12 respectively, a defender can determine how many cards are higher than the card partner has led. Ten is used if the lead is fifth best and 12 is used if the lead is the third best. The Rule of 11 applies when the lead is the 4th best. If the opening lead is the 7, the suit will be blocked and defense is unable to set up the 3rd winner in the suit.

dcterms:subject

dbc:Contract_bridge_leads

dbo:wikiPageID

20442860

dbo:wikiPageRevisionID

1092005386

dbo:wikiPageWikiLink

dbr:Opening_lead dbr:Contract_bridge dbr:Journalist_Leads dbr:Rule_of_11 dbc:Contract_bridge_leads dbr:Coded_9_&_10

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dbt:Short_description dbt:BridgeSuit dbt:WPCBIndex dbt:Primary_sources

dbo:abstract

In contract bridge, the Rule of 10-12 is applied when the opening lead is the third or the fifth best from the defender's suit. By subtracting the rank of the card led from 10 or 12 respectively, a defender can determine how many cards are higher than the card partner has led. Ten is used if the lead is fifth best and 12 is used if the lead is the third best. The Rule of 11 applies when the lead is the 4th best. When following the Rule of 10-12, the lead is the third card from a three or four-card suit and the fifth card from a five-card or longer suit. Leading the third best is also applied to interior sequences (K J 10 x x) which is less ambiguous than the top of interior sequence. The third best lead from an interior sequence is called a lead. Sometimes opening leader may choose to lead the fourth best card from a four-card suit against a notrump contract if the third card is a spot card. The spot-card lead may give declarer a trick that he can't get if the fourth best is led. If the opening lead is the 7, the suit will be blocked and defense is unable to set up the 3rd winner in the suit.

prov:wasDerivedFrom

wikipedia-en:Rule_of_10-12?oldid=1092005386&ns=0

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1829

foaf:isPrimaryTopicOf

wikipedia-en:Rule_of_10-12