In the auction:

Responder   Opener Pass Pass Pass 1 Pass ?*

OR

Responder   Opener   Pass Pass 1 Pass ?

* Drury is in effect after a 3rd seat opening. Many play Drury after a 4th seat opening.

     A bid of 2, by a passed hand, in response to partner's one of a major opening, shows support and a limit raise of partner's suit (artificial: no clubs required).
     A bid of 2 shows support and a ''constructive" raise of 8 to 10 points (artificial: no diamonds required).
     A bid of 2 shows support and a ''weak" raise of 5-7points.

Q109

74

A9643

KJ4

would respond 2 (to 1 opener)

Q109

74

J964

KQ54

would respond 2 (to 1 opener)

Q109

74

J964

Q54

would respond 2 (to 1 opener)

 

	Responder		Opener
	Pass	Pass	1
Pass	2/2	Pass	2

     Opener's PASS/2 rebid (of the major) shows a hand too weak to be interested in game, often a minimum, while any other bid shows a full opener or better. This auction's opener might be:
     AJxxx xxx Qx Axx

    

	Responder		Opener
	Pass	Pass	1
Pass	2	Pass	2

  
   Partner has at least an opening hand, and the 2 bid is at least a game try. (A 2 bid usually shows a 4 card suit and is a game try) The 2 bid may represent as little as:
     AJxxx Qxx Kxx Ax

 

	Responder		Opener
	Pass	Pass	1
Pass	2	Pass	2
Pass	2N/3/3/3

     Responder may try for game opposite even a sub-minimum. With so robust a hand as:
     Q1098 9 AJ64 K863
a game is still possible.

    

	Responder		Opener
	Pass	Pass	1
Pass	2	Pass	3
Pass	3	Pass	4
Pass	5	Pass	6
Pass	Pass	Pass	Pass

     Slams are still a distinct possibility.

     Responder: Q1098 AJ64 9 K863

     Opener: AK643 9 A43 AJ52