Minor Opening

The requirement for an opening bid of one in a minor is 12 - 19 points and a 3+ card suit.
If both minors are 3 cards in length, prefer clubs to diamonds;
consequently a 1 diamond opening will guarantee either 4 cards or both 4 card majors.
Responder bids 4 card majors up the line. No Trump responses are natural.
Inverted minors are recommended i.e. a single raise shows 10+ points and a double raise is weak
A summary of the scheme:

Open Resp Rebid Description  
         
1D     12 - 19 points, 3+ cards  
  1H   6+ points, 4+ cards
 
    1S 4+cards  
    1N 12 -15 points  
    2C Natural  
    2D 12 - 15 points, 5+ diamonds  
         
  1S   6+ points, 4+ cards, no 4 card hearts (unless 5 spades and 4 hearts )  
    2H 16+ points, 4+ hearts  
  1N   6 - 9 points, no 4 card major  
    2D 12 - 15 points, 5+ cards  
    2H,2S 16+ points, 4+ cards  
    2N Inviting to 3N  
  2C   Game force, 4+ cards  
  2D   10+ points, 4 + cards (for details check Inverted Minors)  
  2H   4 - 7 points, 6+ hearts  
  2S   4 - 7 points, 6+ spades  
  2N   10 - 12 points, balanced, no 4 card major  
  3C      
  3D   0 - 9 points, 5+ cards (for details check Inverted Minors)  
  3N   13 - 15 points, balanced  

Since a response of 1H or 1S is unlimited in points, there are some artificial subsequent
responses used to force to game - New minor forcing and Fourth suit forcing.

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