General
The opening bid of 1NT promises 11-14 HCP, or 15 HCP and less than 9 AKQ controls and a balanced hand that denies a four-card major suit. An artificial game-force relay is employed after a puppet to 2D, as are more conventional transfer sequences, and some preemptive bids utilising the minor-suit orientation of the opening bid.
2C Puppet to 2D
2D Forced
P to play
2H GF relay (continuations as after 1C 2D)
2S GF, 5+S
2N doubleton S
3m/3H splinter
3S 6S, choice of contracts
3N to play
4m 5S4M22, slam INV needing fitting honours (else relay)
3m/3H 3S, antiSPL (i.e. values that would be wasted opposite a SPL)
Responder's continuations are Qs
2N Min GF, bal(ish)
3C 2=3=x=y
3D 3=2=x=y
3H 3=3=(34)
3N 3=3=(25)
3x splinter, <5M
2D 5+H
2H almost all hands
2S artificial, GF. Continuations as after responder shows 5+S GF
2N INV
3m INV, usually 55
3H INV, 6+H
3S/4m SPL, 6+H, slam INV
2S/2N(=D)/3C super max, 3H, antiSPL
Now responder bids 3D to retransfer (later bids are Qs), shows a SPL or bids 3H (forcing) to be declarer and asking for Qs
2H 5+S, continuations as after TFR to hearts
2S INV in NT, C or D
2N reject INV in NT
3C reject INV in C, accept in NT
3D reject INV in D, accept in NT and C
3N accept all INV
2N minors, at least 54, may be weak
3m preference
3M SPL
3N 2=2=(54), weak majors
3x preemptive
Competitive Bidding
The opponents double for penalties
1N (X) P to play
XX forces 2C
2C forced
P 5+C
2D 5+D
2H 5+H
2S 5+S, <10 points
2C 4+C and 4-5 other
2D 4+D and 4-5 M
2H 4-5H and 4-5S
2S 5-6S, 10-12 points
2N either
(1) 4+C and 4+D, 9+cards in minors, <GF (pass opener's
minor-suit preference
(2) GF two suiter, at least 5 cards in each suit (bid
cheaper suit)
3x 6+X, <GF
The opponents double to show an unknown single suiter or other hand without a known 5+card suit
1N (X) P to play if advancer passes
XX 12+points, F2N
2C as per 3.1
2D 5+H (continuations as per 8.3 except that 2N shows 5H BAL)
2H 5+S (continuations as per 8.4 except that 2N shows 5S BAL)
2S 5-6S, UNB, INV
2N 4+C and 4+D, 9+cards in minors, <INV or GF (rebid 2+card M)
3x 6+x, <INV
The opponents show a suit naturally, possibly with another unknown suit
1N (2C) X penalties
2x 5+x, <12 points
2N Stayman, GF
3C no stopper in C
3D 5=4=x=y or 4=5=x=y
3H relay
3S 4=5=x=y
3N 5=4=x=y
3M 4oM, <4M
3N 4=4=x=y, stopper in C
4C 4=4=x=y, no stopper in C
3D+ stopper in C
3C 6+D, INV+ or 5D, GF
3D 5+H, INV+
3H 5+S, INV+
3S GF, no stopper in C
4m TFR->H/S
4M to play
1N (2D) X penalties
2x 5+x, <12 points
2N 6+C, to play or 5+C, GF
3C Stayman, GF
3D no stopper in D
3M 4oM, <4M
3N 4=4=x=y, stopper in D
4C 4=4=x=y, no stopper in D
3M 4M, stopper in D
3D 5+H, INV+
3H 5+S, INV+
3S GF, no stopper in C
4m TFR->H/S
4M to play
1N (2H) X penalties
2S 5+S, <12 points
2N One of:
(1) 4+C, 4+D, 9+cards in the minors, <12 points (pass 3m
preference)
(2) 6+D, <12 points (bid 3D if necessary)
(3) 4+C, 4+D, 9+cards in the minors, GF (rebid 3H)
(4) 6+D, GF (rebid 3S)
(5) GF, <4S, <6m, no stopper in H (rebid 3N)
3C 6+C, <12 points
3D 5+S, INV+
3H GF, asking for H stopper
3S 2-4S, NF
3N GF, 2-3S, stopper in H
4C first stop, GF, 3+S
3H 4S, GF
3S <4S, asks for a H stopper
3N <4S, H stopper
4C first stop, 4S, <14 points
4D 4S, 14+points, antiSPL
4H 4S, 14+points, antiSPL
4S 4S, 14+points, no antiSPL in D or H
3S 6+C, GF
3N to play, stopper in H
1N (2S) X penalties
2N One of:
(1) 4+C, 4+D, 9+cards in the minors, <12 points (pass 3m
preference)
(2) 6+D, <12 points (bid 3D if necessary)
(3) 4+C, 4+D, 9+cards in the minors, GF (rebid 3H)
(4) 6+D, GF (rebid 3S)
(5) GF, <4S, <6m, no stopper in H (rebid 3N)
3C 6+C, <12 points
3D 5+H, INV+
3H 2-3H, NF
3S GF, asking for S stopper
3N GF, 2H, stopper in S
4C first stop, GF, 3+H
4D last train,
3H 4H, GF
3S <4S, asks for a H stopper
3N <4S, H stopper
4C first stop, 4S, <14 points
4D 4S, 14+points, antiSPL
4H 4S, 14+points, antiSPL
4S 4S, 14+points, no antiSPL in D or H
3S 6+C, GF
3N to play, stopper in H
The opponents show a suit artificially
P weak or length in their suit
Subsequent bid of their possible 4-card suit at the two level
is natural
X balance of power
Subsequent doubles are penalties over the length and
cooperative under the length
Q takeout
other as for a natural bid of that suit
The opponents double 2C
P C stopper/4+C
XX to play
2D Stayman
other as after 2d response without competition
XX penalties
2D <4M, <1 C stopper
2M 4M, <1 C stopper
The opponents double 2D/2H
P 2M
XX (2H, 5D) or 4H
2M 3M
other as without interference
The opponents overcall 2D/2H
P nothing to say
X takeout (subsequent NS is GF)
NS competitive
X penalties
NS 3-4M, antiSPL