Australian Bridge Standard
The system used in Bidding Forum
Longer minor: With 4-4, 5-5 or 6-6 in minors, open
With 3-3, open 1.
Four-card suits up the line.
No suit quality required for a suit response.
Limit raises normally showing five of the
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
1 minor 3, 3: splinter.
1 minor 3NT: (12) 13-15, balanced raise, 4+
Five-card suits in first or second seat, may be
strong four-card suits in third or fourth position.
Long-suit trial bids by opener.
1 major 1NT: 6-9, non-forcing.
1 major 2NT: Jacoby.
1 major – 3NT: (12) 13-15, balanced raise, 4+ card
Simple Stayman (promises a
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).
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
New suit over two-level response forcing; promises
another bid, e.g. 1 2 2.
Raising responders 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 openers 1NT rebid, two-level bids are
droppable, three-level rebids of responders 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 responders 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.
2NT scramble over takeout double when both
opponents are bidding.
Weak jump overcalls.
1NT overcall 15-18: same methods used as over a
1NT balancing: 10-14, shows stopper in the suit
Takeout doubles after interference to our notrump.
Takeout doubles over weak twos, preempts to 4.
Change of suit after overcall forcing, 2NT bid
Preemptive jump raises of overcalls.
In response to partners takeout double, 2NT
is droppable, a bid of the enemy suit is forcing to suit agreement.