| Threat - 
A card which opponents must guard against by keeping holding in that suit, 
otherwise the card will win a trick.  Types of menace cards include:  
      
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  K 10 x 
   
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  Q x x 
   
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  x x x 
   
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        |  |   
  A J x x 
   
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        Isolated Threat (Menace)- One card 
        menace, often an opponents' Queen - here West cannot afford to pitch a 
        Heart (declarer is uncertain which way to finesse on this hand)
 
   
      
        |  |  A x x 
   
   
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        |  K Q x 
   
   
   |  |  x x x x 
   
   
   |  
        |  |  x x x 
   
   
   |  |  Two-card 
Threat (Menace) - 
        Where an opponent holds both a winner and a threat card - again West 
must not pitch a Spade in order to win 2 Spade tricks. 
   
      
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  x x x x 
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        |   
   
  A 10 x 
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  Q x x 
   |  
        |  |   
   
  K J x 
   |  |  Split Two Card 
        Menace (Threat)  - A two card menace where the cards are in opposite hands - neither East 
        nor West can afford to pitch a Diamond when void in another suit.  
        Further, with these holdings it is unprofitable for either side to break 
        this suit. 
        Double Menace (Threat) - Holding a card threatening both opponents' (same 
        diagram)
 
   
      
        |  |  A J 10 
   
   
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        |  K Q x 
   
   
   |  |  x x x x 
   
   
   |  
        |  |  x x x 
   
   
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Extended Two-card Menace (Threat)  
        - A two card menace with 
        adjoining cards in the suit that will be promoted into winners 
   
      
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  A K 9 x 
   
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  Q J 10 x 
   
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  x x 
   
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        |  |   
  x x x x 
   
   |  |  Recessed Menace (Threat) - 
        Holding a threat card with two or more additional winning tricks 
   
      
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  x x x 
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  K x x 
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  A 10 x x 
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  Q J x 
   |  |  Twin Entry Menace 
Threat) - A hand containing a winner, 
        with the opposite hand containing a winner and a menace as well as small 
        card/s |