| Baron 
    Response to 1 Notrump 
    - In response to Opener's 1 Notrump bid, responder's 2 Notrump call is 
    artificial showing 33+ cumulative points between both hand, exploring the 
    best slam.   Responder's hand my contain a weak 5 card suit or a 
    4-4-4-1 distribution.  
      
        | Bidding | Meaning |  
        | 1N - 2N; | 2N shows a strong 
        slam going hand |  
        | 1N - 2N; 3x
 | 3C, 3D, or 
        3H by opener rebids lowest 4 card suit |  
        | 1N - 2N; 3x - 3y;
 4x
 | Opener's second rebid shows a 
        5 card suit |  
        | 1m - 2N; 4x
 | If playing Baron on over a 
        1 level suit opening bid, opener's jump rebid in a different suit shows 
        a 5-5 distributional hand |  
        | 1m - 2N; 4m
 | If playing Baron on over a 
        1 level suit opening bid, opener's jump rebid in the same suit shows a 
        good card suit (5 trump tricks) |  
        | 1m - 2N; 3N
 | 3N shows a balanced 
        minimum hand |  
        | 1m - 2N; 4N
 | 4N shows a balanced 
        maximum hand |    
    Some also play Baron over partner's 1 level suit opening bid. |