| 
    Serious 3 Notrump - After partners find an 8 card fit in a major 
    below the 3 Notrump level, non-trump bids above 3S become forcing and 
    artificial:
 
      
        | Bid | Meaning |  
        | 3N | Serious Slam try |  
        | 4C/D | Mild Slam try |  
        | 4H | Choice of games |  Some partners play cuebids as 
    serious and 3 Notrump as a non-serious slam try.  See similar 
    conventions
    Last Train Cuebid,
    Mathe Asking Bid 
    Also 
    see books on
     
        Slam and other slam conventions:
     
        1430,
        Baby Blackwood, 
        
        Blackwood, Controls,
    Exclusion Blackwood/Voidwood,
    Gerber,  
        Grand Slam Force,
    Jacoby 2 Notrump,
    Key Card Blackwood, 
    Kickback,  
        Last Train,  NAMYATS,
    Pick a Slam,
    Quantitative Notrump Bid,
    Rolling Blackwood,
    Serious 3 Notrump,
    Slam Try - Stayman,
    Splinters,
    Opener 
    Jump Shift,
    Strong Jump Shift, and legacy treatments as 
        Roman Asking Bids,
    Roman Blackwood, 
        Roman Gerber.  Slam 
        treatments 
    also include interference of 
    an overcall by opponents, as 
        Negative Slam Double,
    DOPI,
        DEPO, ROPI. |