Weak-2
What is Weak-2 bid:
It is a preemptive bid is to deprive the opponents bidding Space.
Basic HCP Requirement : 5-11.
Carding = 6 Card minimum with 2 honors out of top 4.
However, a simple raise of a Major is also treated as a weak bid(1S-2S).
Restrictions and developments:
Weak-2 bid is not permitted in 4th seat.
The bidder must hold 2 card out or top 4.
The confirmed trick must be 6 in V position and, 5 in NV position.
If all three hand passed, a 2 level opening in a suit carry 16+ HCP
with 2 card out or top 4 (therefore 4th seat Weak-2 is not weak).
Response (common for both- Responder and defender):
Pass in all situation with a hand up to 10 HCP.
Support raise is defensive bid.
Response through new suit shows minimum 5 card and no tolerance to
Weak-2 suit 10-13 HCP.
Double shows 14+ hand.
a) Respond through 2NT to create game force. Partner will use
Stayman system. Otherwise partner will bid his best suit.
2NT is 16+ HCP hand.
a) Use transfer response with low hand but with good suit quality.
b) With a semi solid Weak-2 suit, Opener may rebid.
c) With higher hand (8+), opener uses Stayman 3C.
If responder shows any new suit after 2NT response is completed,
it is his 5+ card semi-solid suit with support.
Double over infringement is for penalty.
Game level bid in any suit is strong pre-emptive.
Cue bid tells support to partners suit with another 5 card suit.
Leaping Michaels= With Partners regular bid, Strong.
With partners Strong bid, Weak.