A 1NT o'call initiates the 1NT multi bidding and must nave
9+HCP as well as possibilities in two suits. Partner has to bid even if
your if his RHO passes.
Bidding 2 Clubs shows greater interest in the lower suit and 2
Diamonds in the higher suit. If your RHO doubles PASS shows interet in
the lower suit and redouble preference in the higher suit.
The 1NT multi o'call is aimed at discovering a fit in one of the two chosen suits with his partner's help.
Your LHO may PASS, double raise his partner
Some bids are mainly defensive bids but opponents beware
as they may also have a powerful sting in their tail: These include
BETA's 3-way 2♦
multi bid: often a weak Major 2 but can also be a balanced NT 19-20 HCP
or even a 5-5+ 2-suiter: C+H or D+S. Also our 1N Multi o'call bid:
which is either a 3-level minor pre-empt or a 55+ minor 2-suited with
a <7LTC, hand. Finally our 2♣ o'call mostly
shows a 4-4 Major holding & 10+HCP or can also be a strong single
suited 2C distributional opening with an unspecified 6+ card suit and
an LTC<5.
(i) 6+ card minor suit: Rebid of 3mi
(ii) 2 suited with 5-5 in minors or 2-lowest unbid suits. See 5-5+ for all continuations
(iii) A 5-4 in minors Note: 5-4-2-2 is strictly excluded. Only 5431 & 5440 are acceptable.
BETA's 1NT o'call is clearly not to play & and must be
alerted. Described as 9+HCP distributional hand with emphasis on the
lowest 2 unbid suits. Eg if opps open 1Ma 1N focuses on the minors, However if the opponents open 1♦ (not alerted) then a 1NT o'call shows interest in Clubs & Hearts.
Partner is required to relay 2♣ or 2♦ if RHO passes our 1N o'call:- 2♣ would indicate Club support to be weaker than Heart support & 2♦ would indicate Club support to be stronger.
If RHO overcalls or doubles then PASS shows Club preference and
a double|redouble shows preference of the higher ranking suit.
Note: Responder gives the essential information and avoids
calling in a suit that could become the eventual contract played from
the (wrong) responding hand.
If opponents open with a strong alertable bid of 1♣ strong >= 16HCP. In this case BETA's defence is the TRAP convention.
One of the options provided is our 1NT Multi overcall. Note: this is not to be used if anyother response is applicable.
BETA's 1N o'call can be made over any 1 level opening!
BETA's 1NT o'call is about distributional hands usually concened more with a minors - but not exclusively... it can follow any natural one of a suit opening by opponents when holding any highly distributional holding in the 2 lowest unbid suits.
Partner must respond to a Multi 1NT o'call:
If his RHO passes a bid is required to keep the bidding open!:- by bidding 2♣ One shows support for the lower suit is inferior or equal while bidding 2D indicates preference for the higher ranking suit. If RHO overcalls or doubles PASS indicates preference or equal interest for the lower suit length is better or equal in length otherwise
bid *|** to show preference for the higher ranking suit.
1NT overcaller's rebid options are: as follows:
Partner has indicated preference and the 1NT bidder can now take partner's preferences into his considerations.
A) If he is 5-5+ in the 2 suits continuations follow with BETA's
regular processing of 5-5+ hands - so the 1N bidder rebid sould be the
response to an imagined 3N inquiry! and bidding contnues as detaile in 55+. Note if the opener does not rebid one could be at the 2NT level!