Australian Bridge Standard
The system used in our Bidding Forum
In all cases, explanatory comments in the magazine or on the web page override these notes.
With 4-4, 5-5 or 6-6 in minors, open 1 (showing 4+ diamonds).
With 3-3 minors, or three diamonds and two clubs, open 1. Otherwise open longer minor.
Four-card suits up the line.
No suit quality required for a suit response.
Criss-cross invitational raises (1-2, 1-3), normally showing five of the suit. Preemptive jump raises.
1 minor – 1NT: 8-10 over 1, 7-9 over 1.
1 minor – two of the same minor: inverted, 11+ HCP.
1 minor – 2NT: 11-12, no major.
1 minor – 2 of a major: weak jump shift, 4-6 HCP.
1 minor – 3, 3: splinter.
1 minor – 3NT: (12) 13-15, balanced raise, 4+ card support.
Five-card suits in first or second seat, may be strong four-card suits in third or fourth position.
2/1 game forcing. 1-2 shows five, 1M-2 can be three if planning to rebid 2NT.
Preemptive jump raises.
Long-suit trial bids by opener.
1 major – 1NT: 6-11, semi-forcing (opener can pass with minimum 5332).
1 major – 2NT: Jacoby. Continuations will not be relevant to our bidding forum problems.
1 major – 3NT: (12) 13-15, balanced raise, 4+ card support.
Simple Stayman (promises a major).
Transfers to majors.
2: transfer to either minor (opener bids 3).
3-minor: natural game force.
3-major: natural slam invite.
Stayman followed by 3-minor is natural and forcing (and promises a major).
2 opening: Game Force or 23-24 balanced.
2: less than 3 controls (A=2, K=1).
2, 2, 2: Weak Twos
2NT: 21-22 balanced.
3: Simple Stayman.
3, 3: Transfers.
3: 5 spades, 4 hearts.
4, 4: natural, slam tries.
3 and higher:
Normal preempts. 3NT: Gambling.
Shows any solid seven-card suit, with less than a king outside suit.
Responding and rebidding style:
Reverses forcing for one round. Fast arrival applies.
New suit over two-level response forcing; promises another bid, e.g. 1 – 2 – 2.
Raising responder’s two-over-one response to three shows a minimum, non-forcing.
Double jump rebid by responder splinter (e.g. 1 – 1; 4).
Jump rebids by responder in a bid suit or to 2NT non-forcing (e.g. 1 – 1; 1 – 2NT).
Fourth-suit forcing to game.
After opener’s 1NT rebid, two-level bids are droppable, three-level rebids of responder’s original suit are invitational, and new suits at the three-level force to game.
Slam bidding methods:
4NT: RKCB (1430)
Normal (first round) control bids.
When a suit is agreed, the next notrump bid is a pivot (e.g. 1 – 2NT; 3 – 3NT denies A or A).
2 over their 1NT is takeout for the majors – responder’s 2 shows equal length.
Other bids over their 1NT are natural.
Negative doubles to 4.
Responsive doubles to 4.
Lebensohl after doubles of weak twos (3X stronger than 2NT, slow show).
2NT scramble over takeout double when both opponents are bidding.
Weak jump overcalls.
1NT overcall 15-18: same methods used as over a 1NT opening.
1NT balancing: 10-14, shows stopper in the suit opened.
Takeout doubles after interference to our notrump.
Takeout doubles over weak twos, preempts to 4.
Change of suit after overcall forcing, 2NT bid droppable.
Preemptive jump raises of overcalls.
In response to partner’s takeout double, 2NT is droppable, a bid of the enemy suit is forcing to suit agreement.