비딩 시스템은 Natural Systems 와 Artificial Systems로 분류된다.
Natural 이란 비딩 단계에서 보여주는 슈트가 실제 그 슈트인 경우가 대부분이다.
그렇지만 Artificial 은 그 의미가 암호화되어 비딩에서 보여주는 슈트와 무관한 경우가 많다.
Natural Systems 에는 ACOL, Standard American, Bridge Base Basic, 2/1 Game Forcing 등이 있다.
Artificial Systems 에는 Strong club systems (Vanderbilt Club, Precision Club, Blue Club), Small club systems(Vienna System, Roman club, Plish Club), Strong Diamond system, Strong Pass System, Relay systems 등이 있다.
"Standard American"은 1940년대에 Charles Goren 과 그의 동료들이 개발한 브리지 입찰 시스템에 붙은 라벨이었습니다 . 이 시스템은 브리지 핸드의 강도를 평가하기 위해 1915년 포인트 카운트 방법을 사용했습니다. 대부분의 입찰에는 핸드 강도와 슈트 분포에 대한 상당히 구체적인 요구 사항이 있었습니다. 이 포인트 카운트 시스템은 매우 인기를 얻어서 대부분의 브리지 플레이어, 소셜 플레이어와 토너먼트 플레이어가 사용했습니다. 1930년대 후반과 1940년대의 미국 브리지 팀은 Standard American을 사용하여 세계 챔피언십에서 우승했습니다.
1950년대부터 수정이 나타나기 시작했습니다. 2000년 이전에는 " 2/1 게임 강제 "를 포함한 새로운 입찰 시스템이 발전했는데, 이는 초기 표준 미국 방식에서 상당히 벗어났습니다. 대부분의 토너먼트 페어는 이제 다양한 새로운 처리 및 컨벤션에서 자체 시스템을 구성합니다. 토너먼트 플레이에서 일반적인 시스템에 가장 가까운 것은 American Contract Bridge League 에서 발표한 "Standard American Yellow Card"(SAYC)입니다 . SAYC는 인터넷 브리지 플레이에서 널리 사용되지만 오프라인 토너먼트 플레이에서는 거의 사용되지 않습니다.
아래는 SAYC 에 대한 설명입니다. (부분적으로 2 over 1 GF 설명)
I. 일반적인 접근 방법 (General Approach)
조건 1) 5 Major 우선
12-21 HCP 5+cd Major 가 있으면 1M 로 Open.
( 예외 5 Major 5332 15-16 HCP 이면 1 NT open)
5장 이상 같은 장수이면 (5-5, 6-6) 면 higher rank suit 으로 bid
5cd higher rank suit, 6cd lower rank suit 이면 HCP 에 따라서
min hand 이면 higher rank suit으로 1 level Open, extra hand 이면lower rank suit 으로 1 Level Open
조건 2) 1 NT
5cd Major 가 없으면서 balanced hand (semi balanced, 32(62), 22(63) 포함)이면 15-17 HCP
balanced hand 는 4333, 4432, 3352 (minor 5장)
semi-balanced hand 2245(minor 5장)
그리고 rebid 가 곤란한 3262 (minor 6장)
( 예외 : 5cd Major 5332 15-16 HCP 이면 1 NT open)
조건 3) minor open
위 조건1, 2 에 해당하지 않는 경우
12-21 HCP 더 긴 minor 로 오픈
4 ♦ & 4 ♣ 이면 1 ♦ open
3 ♦ & 3 ♣ 이면 1 ♣ open
조건 4) 2♣ open
22+ HCP
조건 5) Preemptive bid
2 ♦, 2 ♥, 2 ♠, 3 ♣, 3 ♦, 3 ♥, 3 ♠
6장, 5-10 HCP
-----------------------------------------------------------------------------------------------
약어
M : Major, m : minor,
Opener : Open 한 선수
Responder : 파트너가 Open 하고 Response 한 선수
Overcaller : 상대방이 Open 한 이후 경쟁 비딩에 참여한 선수
Advancer : Overcaller 의 파트너
LHO : Left Hand Opponent 왼쪽 상대방
RHO : Right Hand Opponent 오른쪽 상대방
F : Forcing, F1 : Forcing 1 Round, NF : Non Forcing, GF : Game Forcing, INV: Invitation
SI : Slam Interest
Opening bid
1 ♣ : 12-21 HCP, 3+♣
1 ♦ : 12-21 HCP, 3+♦
1 ♥ : 12-21 HCP, 5+♥
1 ♠ : 12-21 HCP, 5+♠
1 NT : 15-17 HCP, BAL
2 ♣ : 22+ HCP, any shape
2 ♦ : (5)6-9(10) HCP, 6 ♦
2 ♥ : (5)6-9(10) HCP, 6 ♥
2 ♠ : (5)6-9(10) HCP, 6 ♠
2 NT : 20-21 HCP, BAL
3 ♣ : (5)6-9(10) HCP, (6)7 ♣
3 ♦ : (5)6-9(10) HCP, 7 ♦
3 ♥ : (5)6-9(10) HCP, 7 ♥
3 ♠ : (5)6-9(10) HCP, 7 ♠
-----------------------------------------------------------------------------
3 NT : Partnership 1) Gambling 3 NT 2) 25-27 HCP, BAL
4 ♣ : (5)6-9(10) HCP, 8♣
4 ♦ : (5)6-9(10) HCP, 8♦
4 ♥ : Partnership 1) 12-14 (7)8♥, 2) (5)6-9(10) HCP, 8♥
4 ♠ : Partnership 1) 12-14 (7)8♠, 2) (5)6-9(10) HCP, 8♠
4 NT : Partnership 1) Specific Ace Asking
5 ♣ : (5)6-9(10) HCP, 9+♣
5 ♦ : (5)6-9(10) HCP, 9+♦
** Partnership 의 경우 1) 추천
1 ♣ or 1 ♦ opening
1 ♣-1 ♦ : 6+ HCP, 4+♦, F1
-1 ♥ : 6+ HCP, 4+♥, F1
-1 ♠ : 6+ HCP, 4+♠, F1
-1 NT : 6-9(10) HCP, No 4cd M, NF
-2 ♣ : Partnership 1) 6-9 HCP, 5+♣, NF 2) 12+ HCP, 5+♣, GF, Alert
-2 ♦ : Partnership 1) 0-5 HCP, 6 ♦, WEAK, Alert 2) 10-11 HCP, 5+♣, INV, Alert
-2 ♥ : Partnership 1) 0-5 HCP, 6 ♥, WEAK, Alert
-2 ♠ : Partnership 1) 0-5 HCP, 6 ♠, WEAK, Alert
-2 NT : (10)11 HCP, BAL
-3 ♣ : Partnership 1) 10-11 HCP, 5+♣, INV,
2) 6-9 HCP, 5+♣, NF, Alert
3) 0-5 HCP, 5+♣, WEAK, Alert
-3 ♥ : Splinter, 12+ HCP, 4+♣, 0-1 ♥
-3 ♠ : Splinter, 12+ HCP, 4+♣, 0-1 ♠
-3 NT : 12-15 HCP, No 4cd M, To Play
1 ♦-1 ♥ : 6+ HCP, 4+♥, F1
-1 ♠ : 6+ HCP, 4+♠, F1
-1 NT : 6-9(10) HCP, No 4cd M, NF
-2 ♣ : Partnership 1) (10)11+ HCP, 4+♣, F1 2) 12+ HCP, 4+♣, GF
-2 ♦ : Partnership 1) 6-9 HCP, 4+♦, NF 2) 12+ HCP, 4+♦, GF, Alert
-2 ♥ : Partnership 1) 0-5 HCP, 6 ♥, WEAK, Alert
-2 ♠ : Partnership 1) 0-5 HCP, 6 ♠, WEAK, Alert
-2 NT : (10)11 HCP, BAL
-3 ♣ : Partnership 1) (10)11 HCP, 6+♣, INV,
2) 10-11 HCP, 4+♦, INV, Alert
3) 0-5 HCP, 6+♣, WEAK, Alert
-3 ♦ : Partnership 1) 10-11 HCP, (4)5+♦, INV,
2) 6-9 HCP, (4)5+♦, NF, Alert
3) 0-5 HCP, (4)5+♦, WEAK, Alert
-3 ♥ : Splinter, 12+ HCP, 4+♦, 0-1 ♥
-3 ♠ : Splinter, 12+ HCP, 4+♦, 0-1 ♠
-3 NT : 12-15 HCP, No 4cd M, To Play
1 ♥ or 1 ♠ Opening
1M-1 NT : 6-9(10), 2- M
1M-2M : 6-9, 3M
1 ♥- 1 ♠ : 6+ HCP, 4+♠, F1
- 1 NT : 6-9(10), 2-♥, NF
- 2 ♣ : (10)11+ HCP, 4+♣
- 2 ♦ : (10)11+ HCP, 4+♦
- 2 ♥ : 6-9 HCP, 3+♥
- 2 ♠ : Partnership 1) Weak, 0-5 HCP, 6 ♠ 2) Invitation, 10-11 HCP, 3 ♥
- 2 NT! : Jacoby 2 NT, 12+ HCP, 4+♥, GF, Alert
- 3 ♣! : Bergen Raise, (6)7-9 HCP, 4+♥, INV, Alert
- 3 ♦! : Bergen Raise, 10-11 HCP, 4+♥, INV, Alert
- 3 ♥! : Bergen Raise, 0-5 HCP, 4+♥, Weak
- 3 ♠! : Splinter, 10-13 HCP, 4+♥, 0-1 ♠, GF, Alert
- 3 NT : Partnership 1) 3433, 12-15 HCP, 2) 3433, 15-16 HCP
- 4 ♣! : Splinter, 10-13 HCP, 4+♥, 0-1 ♣, GF, Alert
- 4 ♦! : Splinter, 10-13 HCP, 4+♥, 0-1 ♦, GF, Alert
- 4 ♥ : Weak, 0-5(6) HCP, 5+♥, To Play
1 ♠- 1 NT : 6-9(10), 2-♥, NF
- 2 ♣ : (10)11+ HCP, 3+♣
- 2 ♦ : (10)11+ HCP, 4+♦
- 2 ♥ : (10)11+ HCP, 5+♥
- 2 ♠ : 6-9 HCP, 3+♠
- 2 NT! : Jacoby 2 NT, 12+ HCP, 4+♥, GF, Alert
- 3 ♣! : Bergen Raise, (6)7-9 HCP, 4+♥, INV, Alert
- 3 ♦! : Bergen Raise, 10-11 HCP, 4+♥, INV, Alert
- 3 ♥! : Bergen Raise, 0-5 HCP, 4+♥, Weak
- 3 ♠! : Splinter, 10-13 HCP, 4+♥, 0-1 ♠, GF, Alert
- 3 NT : Partnership 1) 3433, 12-15 HCP, 2) 3433, 15-16 HCP
- 4 ♣! : Splinter, 10-13 HCP, 4+♥, 0-1 ♣, GF, Alert
- 4 ♦! : Splinter, 10-13 HCP, 4+♥, 0-1 ♦, GF, Alert
- 4 ♥ : Weak, 0-5(6) HCP, 5+♥, To Play
1 NT opening
1 NT-2 ♣ : Stayman, 보통 8+ HCP, asking 4cd Major
-2 ♦! : Jacoby Transfer, 0+ HCP, 5+♥
-2 ♥! : Jacoby Transfer, 0+ HCP, 5+♠
-2 ♠! : Partnership 1) 3-way Transfer, 0-7 HCP, 6+♣ or 6+♦, Alert
2) 4-way Transfer, 0+ HCP, 6+♣, Alert
-2 NT : Partnership 1) No 4cd Major 8-9 HCP, BAL
2) 4-way Transfer, 0+ HCP, 6+♦, Alert
-3 ♣ : Partnership
-3 ♦ : Partnership
-3 ♥ : Partnership
-3 ♠ : Partnership
-3 NT : 10-14 HCP, No 4cd M, To Play
-4 ♣ : Gerber, Ace Asking
-4 ♦ : Texas Transfer, 10-13 HCP, 6+♥
-4 ♥ : Texas Transfer, 10-13 HCP, 6+♠
-4 ♠ : Partnership
-4 NT : Quantitative Raise, 15-16 HCP, No 4cd M
-5 ♣ :
-5 ♦ :
-5 NT : Partnership
-6 NT : 18-19 HCP (15+18 = 33 HCP ~ 17+19 = 36 HCP)
-7 NT : 22+ HCP (15+22 = 37 HCP)
2 ♣ Opening
1) 22+ HCP, Any shape
2) 9 Playing Tricks
2 ♣-2 ♦! : Waiting, 0+ HCP
-2 ♥! : 8+ HCP, 5+♥, 2/3 TOP, SI
-2 ♠! : 8+ HCP, 5+♠, 2/3 TOP, SI
-3 ♣ : 8+ HCP, (5)6+♣, 2/3 TOP, SI
-3 ♦ : 8+ HCP, (5)6+♦, 2/3 TOP, SI
2 ♣-2 ♦! : Waiting, 0+ HCP
2 ♥ : 22+ HCP, 5+♥, F1
2 ♠ : 22+ HCP, 5+♠, F1
2 NT : 22-24 HCP, BAL
3 ♣ : 22+ HCP, (5)6 ♣, F1
3 ♦ : 22+ HCP, (5)6 ♦, F1
3 ♥ : 22+ HCP, SOLID 6+♥, F1
3 ♠ : 22+ HCP, SOLID 6+♠, F1
2 ♣-2 ♦!
2 ♥-3 ♣! = 2nd Negative, 0-2 HCP
2 ♣-2 ♦!
2 ♠-3 ♣! = 2nd Negative, 0-2 HCP
2♣-2♦!
3♣-3♦! = 2nd Negative, 0-2 HCP
2 ♣-2 ♦!
2 NT-3 ♣ = Stayman
2 ♦ Opening
2 ♦-2 ♥ : New Suit Forcing, 14+ HCP, 5+♥, F1
-2 ♠ : New Suit Forcing, 14+ HCP, 5+♠, F1
-2 NT : Partnership 1) Feature Asking 2) Ogust
-3 ♣ : New Suit Forcing, 14+ HCP, 5+♣, F1
-3 ♦ : 0-13 HCP, 3+♦, NF (RONF : Raise Only Non Forcing)
-3 ♥
-3 ♠
-3 NT
2 ♦-2 NT : Feature Asking
3 ♣ : 2/3 TOP, 8-9 HCP, ♣A or ♣K
3 ♦ : 1/3 or 2/3 TOP, 6-9 HCP, no side Feature
3 ♥ : 2/3 TOP, 8-9 HCP, ♥A or ♥K
3 ♠ : 2/3 TOP, 8-9 HCP, ♠A or ♠K
3 NT : ♦ AKQxxx
2 ♥ Opening
2 ♥ -2 ♠ : New Suit Forcing, 14+ HCP, 5+♠, F1
-2 NT : Partnership 1) Feature Asking 2) Ogust
-3 ♣ : New Suit Forcing, 14+ HCP, 5+♣, F1
-3 ♦ : New Suit Forcing, 14+ HCP, 5+♦, F1
-3 ♥ : 0-13 HCP, 3+♥, NF (RONF : Raise Only Non Forcing)
-3 ♠
-3 NT
2 ♥ - 2NT : Ogust
3 ♣ : 1/3 TOP, 6-7 HCP
3 ♦ : 2/3 TOP, 6-7 HCP
3 ♥ : 1/3 TOP, 8-9 HCP
3 ♠ : 2/3 TOP, 8-9 HCP
3 NT : ♥ AKQxxx
2 ♠ Opening
2 ♠ -2 NT : Partnership 1) Feature Asking 2) Ogust
-3 ♣ : New Suit Forcing, 14+ HCP, 5+♣, F1
-3 ♦ : New Suit Forcing, 14+ HCP, 5+♦, F1
-3 ♥ : New Suit Forcing, 14+ HCP, 5+♥, F1
-3 ♠ : 0-13 HCP, 3+♠, NF (RONF : Raise Only Non Forcing)
-3 NT
2 ♠ -2 NT : Ogust
3 ♣ : 1/3 TOP, 6-7 HCP
3 ♦ : 2/3 TOP, 6-7 HCP
3 ♥ : 1/3 TOP, 8-9 HCP
3 ♠ : 2/3 TOP, 8-9 HCP
3 NT : ♥ AKQxxx
1 ♣-1 ♦
1 ♥ : 12-17 HCP, 4+♥, NF
1 ♠ : 12-17 HCP, 4+♠, NF
1 NT : 12-14 HCP, NF
2 ♣ : 12-14 HCP, 5+♣, NF
2 ♦ : 12-14 HCP, 4+♣ & 4+♦, NF
2 ♥ : 18-21 HCP, 5+♣ & 4+♥, GF
2 ♠ : 18-21 HCP, 5+♣ & 4+♠, GF
2 NT : 18-19 HCP, BAL
3 ♣ : 16-17 HCP, 6+♣, INV
3 ♦ : 16-17 HCP, 4+♦ & 5+♣, INV
3 ♥ : 16+ HCP, 0-1 ♥ & 4+♦, Splinter
3 ♠ : 16+ HCP, 0-1 ♠ & 4+♦, Splinter
3 NT : 16+ HCP, SOLID 6+♣
1 ♣-1 ♥
1 ♠ : 12-17 HCP, 4+♠, NF
1 NT : 12-14 HCP, NF
2 ♣ : 12-14 HCP, 5+♣, NF
2 ♦ : 17+HCP, 5+♣ & 4+♦, F1
2 ♥ : 12-14 HCP, 4 ♥, NF
2 ♠ : 18-21 HCP, 5+♣ & 4+♠, GF
2 NT : 18-19 HCP, BAL
3 ♣ : 16-17 HCP, 6+♣, INV
3 ♦ : 16-17 HCP, 0-1 ♦ & 4 ♥ & 4+♣, INV
3 ♥ : 16-17 HCP, any short & 4+♥
3 ♠ : 16+ HCP, 0-1 ♠ & 4 ♥, GF
3 NT : 16+ HCP, SOLID 6+♣
4 ♣ : 12-14 HCP, 6 ♣ & 4 ♥, GF
4 ♦ : 18+HCP, 0♦ & 4 ♥, GF
4 ♥ : 18-19 HCP, 4 ♥
1 ♣-1 ♠
1 NT : 12-14 HCP, NF
2 ♣ : 12-14 HCP, 5+♣, NF
2 ♦ : 17+HCP, 5+♣ & 4+♦, F1
2 ♥ : 17+HCP, 5+♣ & 4 ♥, F1
2 ♠ : 12-14 HCP, 3+♣ & 4+♠
2 NT : 18-19 HCP, BAL
3 ♣ : 16-17 HCP, 6+♣, INV
3 ♦ : 16-17 HCP, 0-1 ♦ & 4 ♠, INV
3 ♥ : 16-17 HCP, 0-1 ♥ & 4 ♠, INV
3 ♠ : 16+ HCP, any short & 4+♠
3 NT : 16+ HCP, SOLID 6+♣
4 ♣ : 12-14 HCP, 6 ♣ & 4 ♠, GF
4 ♦ : 18+HCP, 0♦ & 4 ♠, GF
4 ♥ : 18+HCP, 0♥ & 4 ♠, GF
4 ♠ : 18-19 HCP, 4 ♠
1 ♣-1 NT
2 ♣ : 12-14 HCP, 5+♣, NF
2 ♦ : (16)17+ HCP, 5+♣ & 4+♦, F1
2 ♥ : (16)17+ HCP, 5+♣ & 4+♥, F1
2 ♠ : (16)17+ HCP, 5+♣ & 4+♠, F1
2 NT : 18-19 HCP, BAL
3 ♣ : 16-17 HCP, 6+♣, INV
3 ♦ :
3 ♥ :
3 ♠ :
3 NT : 16+ HCP, SOLID 6+♣
1 ♥-1 ♠
1 NT : 12-14 HCP, 3532
2 ♣ : 12-17 HCP, 4+♣
2 ♦ : 12-17 HCP, 4+♦
2 ♥ : 12-14 HCP, 6 ♥
2 ♠ : 12-14 HCP, 3+♠
2 NT : 18-19 HCP, 3532
3 ♣ : 18+ HCP, 4+♣, SJS, GF
3 ♦ : 18+ HCP, 4+♦, SJS, GF
3 ♥ : 16-17 HCP
3 ♠ : 16-17 HCP
3 NT : 18+ HCP, 6+♥
4 ♣ : 18+ HCP, 0-1 ♣ & 4+♠
4 ♦ : 18+ HCP, 0-1 ♦ & 4+♠
4 ♥ : 12-17 HCP, 7+♥
4 ♠ : 18+ HCP, 4+♠
1 ♥-1 NT
2 ♣ : 12-17 HCP, 4+♣
2 ♦ : 12-17 HCP, 4+♦
2 ♥ : 12-14 HCP, 6 ♥
2 ♠ : (16)17+ HCP, 5+♥ & 4+♠
2 NT : 18-19 HCP, 3532
3 ♣ : 18+ HCP, 4+♣, SJS, GF
3 ♦ : 18+ HCP, 4+♦, SJS, GF
3 ♥ : 16-17 HCP
3 ♠ :
3 NT : 18+ HCP, 6+♥
4 ♣ :
4 ♦ :
4 ♥ : 12-17 HCP, 7+♥
SAYC
1 ♥-2 ♣ : (10)11+HCP, 4+♣, F1
2 ♦ : 12+ HCP, 5+♥ & 4+♦, F1
2 ♥ : 12-13 HCP, 5+♥, INV
2 ♠ : (16)17+ HCP, 5 ♥ & 4 ♠, GF
2 NT : 12-13 HCP, 5 ♥332, INV
3 ♣ : (15)16+ HCP, 5 ♥ & 4+♣, GF
3 ♦ : (15)16+ HCP, 5 ♥ & 4+♣ & 0-1 ♦, GF
3 ♥ : 14+ HCP, 6 ♥, GF
3 ♠ : (15)16+ HCP, 5 ♥ & 4+♣ & 0-1 ♠, GF
3 NT : 14-16 HCP
4 ♣ :
4 ♦ :
4 ♥ : 12-14 HCP, 7+♥
2 OVER 1 GF
1 ♥-2 ♣ : 12+HCP, 4+♣, GF
2 ♦ : 12+ HCP, 5+♥ & 4+♦
2 ♥ : 12+ HCP, 6 ♥
2 ♠ : 12+ HCP, 5 ♥ & 4 ♠
2 NT : 12-14 or 18-19 HCP, 5 ♥332
3 ♣ : (15)16+ HCP, 5 ♥ & 4+♣
3 ♦ : (15)16+ HCP, 5 ♥ & 4+♣ & 0-1 ♦
3 ♥ : 12+ HCP, SOLID 6 ♥
3 ♠ : (15)16+ HCP, 5 ♥ & 4+♣ & 0-1 ♠
3 NT : 15-17 HCP
4 ♣ :
4 ♦ :
4 ♥ : 12-14 HCP, 7+♥
SAYC
1 ♥-2 ♦ : (10)11+HCP, 4+♦, F1
2 ♥ : 12-13 HCP, 5+♥, INV
2 ♠ : (16)17+ HCP, 5 ♥ & 4 ♠, GF
2 NT : 12-13 HCP, 5 ♥332, INV
3 ♣ : (15)16+ HCP, 5 ♥ & 4+♣, GF
3 ♦ : (15)16+ HCP, 5 ♥ & 4+♦, GF
3 ♥ : 14+ HCP, 6 ♥, GF
3 ♠ : (15)16+ HCP, 5 ♥ & 4+♦ & 0-1 ♠, GF
3 NT : 14-16 HCP
4 ♣ :
4 ♦ :
4 ♥ : 12-14 HCP, 7+♥
2 OVER 1 GF
1 ♥-2 ♦ : 12+HCP, 4+♦, GF
2 ♥ : 12+ HCP, 5+♥
2 ♠ : 12+ HCP, 5 ♥ & 4 ♠
2 NT : 12-14 or 18-19 HCP, 5 ♥332
3 ♣ : (15)16+ HCP, 5 ♥ & 4 ♣
3 ♦ : (15)16+ HCP, 5 ♥ & 4+♦
3 ♥ : 12+ HCP, SOLID 6 ♥
3 ♠ : (15)16+ HCP, 5 ♥ & 4+♦ & 0-1 ♠
3 NT : 15-17 HCP
4 ♣ :
4 ♦ :
4 ♥ : 12-14 HCP, 7+♥
Competivie Bid
Overcall
(1 ♣)-1 ♦ : 8-16 HCP, 5+♦
-1 ♥ : 8-16 HCP, 5+♥
-1 ♠ : 8-16 HCP, 5+♠
-1 NT : 15-18 HCP, ♣ STOP
-2 ♣ : Micheals Cue, 5+♠ & 5+♥
-2 ♦ : (5)6-9(10) HCP, 6+♦
-2 ♥ : (5)6-9(10) HCP, 6+♥
-2 ♠ : (5)6-9(10) HCP, 6+♠
-2 NT : 5+♦ & 5+♣
-3 ♣ :
-3 ♦ : (5)6-9(10) HCP, 7+♦
-3 ♥ : (5)6-9(10) HCP, 7+♥
-3 ♠ : (5)6-9(10) HCP, 7+♠
-3 NT :
- 4 ♣
- 4 ♦
- 4 ♥
- 4 ♠
Weak Jump Overcall
Michaels Cue bid
Unusual 2NT
Takeout Double
Negative Double
Responsive Double
Support Double
Maximal Double
Reopening Double
Balancing Double
SOS Redouble
Cue bid
Slam Conventions
Blackwood
Gerber
RKCB (Roman Key Card Blackwood)
Minorwood
Redwood
Kickback
Exclusion blackwood (Void wood)
Defensive Signals
Carding
Discarding