Major Opening

The requirement for an opening bid of one in a major is 12 - 19 points and a 5 card suit.
The point requirement may be a bit shaded in the 3rd or 4th position.
A response of 1 NT is forcing for one round. The opener may be forced to rebid a 3 card minor.
A response of 1 NT by a passed hand is semi-forcing.
All raises are weak. A response of a minor at the 2-level is forcing to game (2 over 1).
A response of 2 No Trump is artificial and forcing to game. It asks opener to bid shortage. This is called Jacoby 2NT.


Open Resp Rebid Description  
         
1H     12 - 19 points, 5+ cards  
  1S   6+ points, 4+ cards

  
  1N   6 - 11 points, denies 4 card spades, forcing for one round  
    2C 12 - 15 points, may be 3 card suit  
    2D 12 - 15 points, may be 3 cards ( if 3 cards, denies 3 card clubs)  
    2H 12 - 15 points, 6 card hearts
  
    2S 16+ points, 4+ spades, strongly invitational to game  
    2N Inviting to game  
    3C, .. suit, strongly invitational to game  
  2C,2D   Natural, Game force  
  2H   6 - 9 points, 3 card hearts  
  2S   weak, 6+ spades  
  2N   12+ points, 4+ hearts (Jacoby)
Opener bids shortage; else 4H with minimum opening; else 3H 		 
  3C   6 - 9 points, 4 card hearts  
  3D   10 - 11 points, 4 card hearts  
  3H   0 - 5 points, 4 card hearts  
  4H   0 - 5 points, 5 card hearts  

Advanced conventions:   Drury ,   Bergen Raises ,   Splinters

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