| 
 
Jordan 2 Notrump (Jordan 2NT) - After partner opens and Right Hand Opponent Doubles, a 
2 Notrump call by responder shows good trump support and a limit plus raise (10+ points).  
Most players consider good trump support as 4 in the major, while some players 
use 3 trump (perhaps coupled with other conventions as Bergen Raise Of Major 
    After Double (BROMAD).  While 
Jordan 2 Notrump was originally intended in response to major suit openings, some players play 
it on over minors; still others use an inverted
    Flip-flop 2 Notrump in the minors. 
Basic responses 
after opponent doubles include: 
      
        | Response | 
        
         Meaning  | 
       
      
        | 2 of 
        Same Major | 
        
         Competitive, typically 3 
        trump with 6-9 points  | 
       
      
        | 2 of New Suit | 
        
         10+ points and 5+ in new 
        suit  | 
       
      
        | 2 
        Notrump | 
        
         The Jordan 2 Notrump bid, 
        showing a limit plus raise and 4 trump  | 
       
      
        | Redouble | 
        
         Showing 10+ points and no 
        trump support  | 
       
      
        | 3 of 
        Same Major | 
        
         Typically played as 
        preemptive, showing 4 trump with 0-5 points  | 
       
      
        | Redouble | 
        
         Showing 10+ points and less 
        than the required  trump support to bid Jordan 2 Notrump (see above 
        regarding partnership agreements)  | 
       
     
Advanced 
treatment: after responder bids 2 Notrump, opener may rebid 3C as a 
game-forcing query: 
      
        | Response | 
        
         Meaning  | 
       
      
        | 3D | 
        
        
          
            | 
             1H - (X) - 2N - 
            (P); 
            3C - (P) - 3D  | 
            
             Balanced, limit raise  | 
           
         
         | 
       
      
        | 3 of Same Major | 
        
        
          
            | 
             1H - (P) - 2N - 
            (3D); 
            3C - (P) - 3H  | 
            
             Unspecified singleton. 
            If playing Splinters "off" after opponent Doubles, belated 3 Major 
            shows Limit Raise. If 
            playing Splinters "on", belated 3 Major shows game forcing values.  | 
           
         
         | 
       
      
        | 3 of 
        Other Major | 
        
        
          
            | 
             1H - (P) - 2N - 
            (3D); 
            3C - (P) - 3S  | 
            
             Game forcing cuebid  | 
           
         
         | 
       
      
        | 3 Notrump | 
        
        
          
            | 
             1H - (P) - 2N - 
            (3D); 
            3C - (P) - 3S  | 
            
             Game forcing without 
            ability to cuebid  | 
           
         
         | 
       
      
        | 4 of 
        Minor | 
        
        
          
            | 
             1H - (P) - 2N - 
            (3D); 
            3C - (P) - 4C  | 
            
             Game forcing cuebid  | 
           
         
         | 
       
      
        | 4 of Same Major | 
        
        
          
            | 
             1H - (P) - 2N - 
            (3D); 
            3C - (P) - 4H  | 
            
             Signoff  | 
           
         
         | 
       
     
To find 
responder's undisclosed singleton: 
      
        | Response | 
        
         Meaning  | 
       
      
        |   | 
        
        
          
            | 
             1H - (X) - 2N - 
            (P); 
            3C - (P) - 3H - (P); 
            3S  | 
            
             Unspecified singleton. 
            3S asks shortage suit  | 
           
         
         | 
       
      
        | 3N | 
        
        
          
            | 
             1H - (X) - 2N - 
            (P); 
            3C - (P) - 3H - (P); 
            3S - (P) - 3N  | 
            
             Club shortage  | 
           
         
         | 
       
      
        | 4C | 
        
        
          
            | 
             1H - (X) - 2N - 
            (P); 
            3C - (P) - 3H - (P); 
            3S - (P) - 4C  | 
            
             Diamond shortage  | 
           
         
         | 
       
      
        | 4D | 
        
        
          
            | 
             1H - (X) - 2N - 
            (P); 
            3C - (P) - 3H - (P); 
            3S - (P) - 4D  | 
            
             Spade shortage  | 
           
         
         | 
       
     
  
     |