Mau - Weak 2 Opening


Mau uses Mini-Roman 2 diamond bid.
This system is a considerable enhancement on the basic mini Roman.

The requirement for an opening weak 2 bid in a major is 6 - 10 points and a 6 card suit.
2 No Trump is an artificial response asking more about shortness in the opener's hand.
3C is an artificial bid asking about a feature.

The raise of a weak 2 bid is preemptive while other bids are forcing.
The acronym RONF (Raise only non force) is used to remember this.

Open Resp Rebid Description  
         
2H     6 - 10 points, 6+ cards  
  2S   suit, asking for support, forcing  
  2N   relay asking for shortness further  
    3C, 3D Shortness in suit bid  
    3H No shortness  
    3S Short spades  
    3N No shortness; AKQxxx in suit  
  3C   relay asking for feature - King or better  
    3D Diamond King or Ace  
    3H No feature  
    3S Spade King or Ace  
    3N Club King or Ace  
  3D   suit, forcing  
  3H   Preemptive  
  3N,4H   To play  
  4C   Keycard asking in hearts  


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