Responses to 1♥
1♥ ---
1♠ : 6+ HCP, 4+♠, forcing.
1NT : 6-11 HCP. Passable by opener with minimum 5332 hand.
2♣/2♦ : {12+ HCP, min 3+♣, min 5+♦}
2♥ : 6-9 HCP, 3+ support, constructive weak raise.
2♠ : Preemptive, 3-6 HCP
2NT* : Jacoby 2NT. 13+ HCP, 4+ trump support, GF.
3♣* : {10-11 HCP, exactly ♥ 3}
3♦* : {10-12 HCP, ♥ 4+}
3♥ : Preemptive raise, 4+ support, weak.
3♠ : {mini SPL, 10-12 HCP, opener bid 3NT to ask. (response: 4♥ is ♠ shortness)}
3N/4♣/♦* : {Normal SPL(3NT is for ♠ shortness), 13-16 HCP. With more value, start from 2NT}
4♥ : To play, typically 5+ trumps, preemptive.
Developments After 1♥ - 1♠
1♥ - 1♠;
1NT : Balanced, denies 4♠ or 3145 shape.
2♣* : Transfer to 2♦. Weak with ♦ or any invite.
2♦* : Artificial, GF.
2♥ : Weak, 2-3♥.
2♠ : Weak, 6+(Good 5-card OK)♠.
2♣ : 12-17 HCP, 4+♣
2♦ : 12-17 HCP, 4+♦
2♥ : 12-14 HCP, 6+♥
2♠ : 12-14 HCP, ♠ 4
2NT : 18-19 HCP, balanced. (♠ 4 OK)
3♣ : relay
3♣ : 18+ HCP, 4+♣ (3-card OK when ♥ 6+, unbal), forcing
3♦ : 18+ HCP, 4+♦ (3-card OK when ♥ 6+, unbal), forcing
3♥ : 15-17 HCP, 6+♥
3♠ : 15-17 HCP, ♠ 4
3NT : Solid 6+♥ suit, small singleton ♠.
Developments After 1♥ - 1NT
A 1NT response shows 6 to poor 12 HCP. It is passable only if opener is a minimum 5332 hand.
1♥ - 1NT;
2♣ : 12-17 HCP, 4+♣.
2♦ : 12-17 HCP, 4+♦.
2♥ : 12-15 HCP, usually 6+♥.
2♠ : 16+ HCP, Reverse, 1 round forcing.
2NT : 18-19 HCP, balanced.
3♣/♦ : 18+ HCP, forcing, 4+ cards, may be 3-card if shapely.
3♥ : 15-17 HCP, 6+ card suit.
3♠ : 15+ HCP, GF, 6♥ 5♠.
3NT : Solid 6+♥ suit, small singleton ♠.
4♣/♦ : 15+ HCP, GF, 6♥ 6m two-suiter.
4♥ : To play, usually 7+ card suit, shapely.
Developments After 1♥ - 2♣/2♦
{
1♥ - 2♣;
2♦ : natural, not necessarily with extra value, denies ♠ 4.
2♥ : ♥ 3, not minimum
2♠* : relay, no ♥/♦ fit, denies ♠ stoppers, 5 or bad 6 card ♣
2NT* : relay, no ♥/♦ fit, 5 or bad 6 card ♣, with ♠ stoppers
3♣ : ♣ 3 (then responder's 3♥ can show ♥2)
3♦ : ♦ 5+, no ♣ 3
3♥ : ♥ 6 ♦ 4, no ♣ 3
3♠* : ♥ 5 ♦ 4, no ♣ 3, ask responder to bid 3NT with 2 stoppers in ♠
3NT : to play
3♣ : no ♥/♦ fit, 6+ ♣
3♦ : ♦ 5+ (2-5-4-2 OK), no ♣ 3
3♥ : ♥ 6 ♦ 4, no ♣ 3
3♠* : ♣ 3, shortness ♠
3NT : to play
3♦ : ♦ fit, no ♥ fit
3♥ : ♥ 3 with good ♣
3NT : natural, generally short ♥
4♣ : ♣ solid, slam interest in ♣
3♠/4♦* : ♥ 3, showing shortness, 13-16 HCP
4♥ : ♥ 3, 11-13 HCP
2♥ : {default bid : either 6 cards, or}
: {♣ 3+, but minimum or}
: {balanced but want to rightside the contract}
2♠* : relay, no ♥ fit, denies ♠ stoppers, 5 or bad 6 card ♣
2NT* : relay, no ♥ fit, usually with 5 or bad 6 card ♣
3♣ : ♣ 3+, minimum
3♦* : ♣ 3, minimum, intend to play 3NT, stopper issue in ♦
3♥ : ♥ 6+
3♠ : ♣ 3, minimum, ask partner to bid 3NT with 2 stoppers in ♠
3NT : minimum, generally 5-3-3-2
3♣ : ♣ 6+
3♦ : ♣ 6 ♦ 5
3♥ : ♥ 3, 14+ HCP
3NT : natural, generally short ♥
4♣ : ♣ solid, slam interest in ♣
3♠/4♦* : ♥ 3, showing shortness, 13-16 HCP
4♥ : ♥ 3, 11-13 HCP
2♠ : natural, not necessarily with extra value.
2NT* : relay, no fit, usually 5 or bad 6 card ♣, with ♦ stoppers
3♣ : ♣ 3
3♦ : ♦ 3 (4-5-2-2 OK)
3♥ : ♥ 6 ♠ 4, no ♣ 3
3♠ : ♥ 6 ♠ 5, slam interest
3NT : to play
3♣ : no fit, 6+ ♣
3♦ : ♦ 3 (4-5-2-2 OK)
3♥ : ♥ 6 ♠ 4, no ♣ 3
3♠ : ♥ 6 ♠ 5, slam interest
3NT : to play
3♦ : stopper issue in ♦
3♥ : ♥ 3, 14+ HCP
3♠ : 14+ HCP, ♠ fit
3NT : natural, generally short ♥
4♣ : ♣ solid, slam interest in ♣
4♦* : ♥ 3, showing shortness, 13-16 HCP
4♥ : 11-13 HCP, to play
4♠ : 11-13 HCP, to play
2NT : 12-14 HCP, bal
3♣ : ♣ 4+, 14+ HCP
3♥ : At least semi-solid, with any value
3♦/♠* : splinter, ♣ 5+, 12-15 HCP(with more value, start from 3♣)
3NT : 18-19 HCP, bal
1♥ - 2♦;
2♠ : {natural, not necessarily with extra value.}
2NT* : relay, no fit, have something in minors, with ♣ stoppers
3♣ : ♣ 4, maybe fit ♦
3♦ : ♦ 3 , no ♣ 4
3♥ : ♥ 6 ♠ 4
3♠ : ♥ 6 ♠ 5, slam interest
3NT : to play, usually no fit in minor
3♣* : no fit, stopper issue in ♣
3♦ : ♦ 6+
3♥ : ♥ 3, 14+ HCP
3♠ : 14+ HCP, ♠ fit
3NT : natural, generally short ♥
4♦ : ♦ solid, slam interest in ♦
4♣* : ♥ 3, showing shortness, 13-16 HCP
4♥ : 11-13 HCP, to play
4♠ : 11-13 HCP, to play
2♥ : {default bid : either 6 cards, or}
: {♣ 4+/♦ 3+, but minimum or}
: {balanced but want to rightside the contract}
2♠* : relay, no ♥ fit, no ♠ stoppers
2NT* : relay, no ♥ fit, with ♠ stoppers
3♣ : ♣ 4, maybe fit ♦
3♦ : ♦ 3 , no ♣ stoppers
3♥ : ♥ 6
3♠* : ♦ 3, ask responder to bid 3NT with 2 stoppers in ♠
3NT : to play, usually no fit in minor
3♣ : no fit, ♦ 5+, ♣ 5+
3♦ : fit ♦
3♥ : ♥ 6
3♠ : fit ♣
3NT : to play
3♦ : ♦ 6+
3♥ : ♥ 3, 14-16 HCP
3NT : natural, generally short ♥
4♦ : ♦ solid, slam interest in ♦
3♠/4♣* : ♥ 3, showing shortness, 13-16 HCP
4♥ : 11-13 HCP, to play
2NT : 12-14 HCP, bal
3♣ : ♣ 4+, 14+ HCP
3♦ : ♦ 3+, 14+ HCP
3♥ : At least semi-solid, any value
3♠/4♣* : {splinter, ♦ 4+, 12-15 HCP(with more value, start from 3♦)}
3NT : {18-19 HCP, bal}
}
Competition After 1♥ Opening
{
1♥ -- (1♠) -- ?
Dbl* : Negative Dbl. Does not deny ♠ stoppers
1NT* : Constructive raise, 7-9 HCP, exactly ♥ 3
2♣/♦ : Natural, forcing.
2♥ : weak raise, 4-6 HCP, ♥ 3+
2♠* : exactly ♥3, 10+ HCP
2NT* : ♥ 4+, 10+ HCP (does not deny a shortness)
3♣/♦ : Mixed raise, 7-9 HCP, ♥ 4+, some values in ♣/♦, but not necessarily a 5-card suit
3♥ : preemptive
3NT : Natural, to play
3♠/4♣/♦ : Splinters, 12-15 HCP
4♥ : to play
4♠ : ERKCB
1♥ -- (2♣/♦) -- ?
Dbl* : Negative Dbl. Does not deny ♠ stoppers
New suit : Natural, forcing
2♥ : 6-9 HCP, ♥ 3+
Cue bid : exactly ♥3, 10+ HCP
2NT* : ♥ 4+, 10+ HCP (does not deny a shortness)
3♦(If not cue bid) : Mixed raise, 7-9 HCP, ♥ 4+
3♥ : preemptive
3NT : Natural, to play
3♠/4♣/♦ : Splinters, 12-15 HCP
4♥ : to play
4♠ : to play, shortness ♥
1♥ -- (Dbl) -- ?
RDbl : Any 10+ HCP, no ♥ 4 (♥ 3 OK)
1NT* : Constructive raise, 7-9 HCP, exactly ♥ 3
2♣/2♦ : Natural, non-forcing.
2♥ : weak raise, 4-6 HCP, ♥ 3+
2♠ : preemptive
2NT* : 10+ HCP, ♥ 4+ (does not deny a shortness)
3♣/♦* : Mixed raise, 7-9 HCP, ♥ 4+, some strength in ♣/♦, but not necessarily a 5-card suit
3♥ : preemptive
3NT : Natural, to play
3♠/4♣/4♦* : Splinters, 12-15 HCP
4♥ : to play
4♠/5♣/♦ : ERKCB
}