| 
    Checkback Stayman - A method similar to the New Minor Forcing 
    convention for responder to determine if opener is holding a 4-card major or 
    3-cards in responders bid suit.  With an auction as: 
 1 Minor      -  1 Major;
 1 Notrump - 2 Clubs    (Checkback Stayman)
 
 Opener's rebids are: (Note - some partners use other agreements)
 
      
        | Rebid | Meaning |  
        | 2D | No 4-card major or 3-card support for 
        responder's bid suit |  
        | 2H/S | Showing a 4-card major, or 3-card support for 
        responder's bid suit |  
    Should opener deny support by bidding 2D, responder may still make a 
    major suit rebid with a 6-card Suit showing either a weak or invitational 
    hand ("slow shows" values): 
      
        | Hand | Bidding |  
        | Weak | 1C/D - 1H/S;1N      - 2H/S
 |  
        | Invitational | 1C/D  - 1S;1N       - 2C;
 2D       - 2S
 ...
 |  
    Responder can also show weak or invitational hands with 5 Spades and 4 
    Hearts: 
      
        | Hand | Bidding |  
        | Weak | 1C/D - 1S;1N      - 2H
 |  
        | Invitational | 1C/D - 1S;1N      - 2C;
 ...
 |    |