Bridge Bidding Systems

Play at bridge of online BBO usually use standard system/basic. As for this offer system is recognized with term of SAYC suggested to player of beginner, and Advanced or 2/1 (Two over One Game Force).

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A. Standard American Yellow Cards (SAYC)

System Summary

BBO-Standard American Convention Card

OPENING 1NT = 15-17 HCP, Balance

RESPONDER :
Stayman

Jacoby Transferbid
2♠ = Minor bust
3♣/♦ = Natural, 6 cards, Invitational
3♥/♠ = Natural, Slam Interest
4♣  = Gerber

OPENING 2NT = 20-21 HCP, BAL                 

RESPONDER : Stayman, Jacoby, Transfer, Gerber

OPENING 3NT : 25-27 HCP

RESPONDER : Stayman, Transfer

OPENING 1♣/♦ : Natural, 3+ cards, 11-21 HCP

OPENING 1♥/♠ : Natural, 5 cards major, 11-21 HCP

RESPONDER :

·         1NT = Non forcing

·         2NT = 4 cards, raise forcing, Opener bid short suit in 3 level

or 5 cards bid in level 4

·         Raise : Limit raise

·         3NT = 15-17 HCP, Balance with 4 card support

·         Strong Jump Shift

·         1 over 1, Natural, 4 cards, F1

·         2/1, Natural, FG

OPENING 2 ♣ : Strong, Artificial

RESPONSE : Natural, 2♦ = Waiting

OPENING 2♥/♠ : Weak Two

RESPONDER :

·         2NT = Ask Feature Bid Suit

·         New suit, Natural Forcing

·         Raise, Non Forcing

Some Additional Converse

·         Pre-emptive Jump Overcall

·         Negative Double to 2♠

Example:

East     North    West     South

1♦        2♠        Dbl = Negative Double

1♦        3♣        Dbl = Penalty

Over take out double then bid:

New suit at level 1 = Natural, Forcing, at level 2 = NF

Pre-emptive Jump, (differing when opponent follow bid)

2NT = Limit raise or better, Pre-emptive jumps

Example:

East     North       West     South

1♦        Double     1♥/♠ = Natural, forcing

                          2♣ = Non forcing

                         2NT = Limit raise or better

Over Overcall :

·         New suit = Non forcing

·         Bid suit after double = Natural, forcing

Over 1NT Overcall (16-18), Stayman

Over Opening 1NT : Overcall 2♣ = 2 suit major (response 2♦ = NAT)

Response Blackwood or Gerber:

·         5♣ = 0/4 Ace

·         5♦ = 1 Ace

·         5♥ = 2 Ace

·         5♠ = 3 Ace

4^th Suit = One round force

Unusual 2NT

Michael Cue bid

Lead: 4^th best

Signal: Standard signal

Opening Summary 1NT:

1NT – 2 ♣ : Stayman

2♦: No 4 cards major

2♥: 4 cards H can 4 cards ♠

2♠: 4 cards ♠, no 4 cards ♥

New suit : Natural, forcing

1NT – 2♦/♥ : Transfer to 2♥/♠

Opener bid new suit = Forcing

1NT – 2♠ : Long suit minor

After opener rebid 3♣ : Responder pass = to play, 3♦ = NF

2NT   : Invite to 3NT

3♣/♦ : Invite to 3NT, 6 cards ♣/♦

3♥/♠ : Natural, slam interest

3NT  : To play

4♣    : Gerber

4♥/♠ : Sign off

4NT  : Invite to 6NT

Over 1NT double : system on. Double after overcall 2♣ = Stayman          

B. Two over One Game Force (2/1):

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Summary:

BBO Advanced Convention Card-2/1

OPENING 1NT : 15-17 HCP, Balance

RESPONDER :
Stayman, 4-suit Transfer
3♣ = 5/5 minor, weak
3♦ = 5/5 minor, strong
3♥/♠ = 5-4 major, singleton ♥/♠
Gerber, Texas, Smolen
System on after double, Lebensohl

OPENING 2NT : 20-21 HCP, Balance

RESPONDER :

·         Stayman, Jacoby Transfer, Texas, Smolen, Gerber

·         3♠ puppet to 3NT

·         Minor suit = Natural

OPENING 3NT : One suiter Minor

RESPONDER :

·         4♣ = Pass or correct

·         4♦ = Ask singleton

OPENING 1♣/♦ : Natural, 3+ cards, 11-21 HCP

RESPONSE :

·         Natural, 6 up HCP, can 3 cards, bid up the line

·         By pass ♦, major suit priority

·         Inverted minor raise

·         Weak Jump Shift

·         1NT = 6-9, 2NT = 10-12, 3NT = 13-15 HCP

OPENING : 1♥/♠: Natural, 5 cards, 11-21 HCP

RESPONDER :

·         One over one, Natural, F1

·         1NT = Forcing

·         2NT = 4 cards raise forcing

·         Bergen raise, Splinter

·         3NT = 15-17 HCP

·         Weak Jump Shift, Reverse Drury

OPENING 2♣ : Strong and artificial

RESPONDER : 2♦ = Waiting, 2♥ = Negative

OPENING : 2♦/♥/♠: Weak Two, 5-11 HCP

RESPONDER :

·         2NT = Ask feature

·         New suit, Natural and forcing

·         Raise, NF

Some Additional Converse

Weak Jump Overcall

Negative Double & Responsive Double to 4♦

Example:

West     North    East     South

  1♦         4♦       Dbl = Negative Double

  1♦         4♥       Dbl = Penalty

  1♥        2♦        3♥        Dbl = Responsive Double

  1♥        2♦        4♥        Dbl = Penalty

After Take out Double then Opener rebid:

·         New suit level 1 = Forcing

·         New suit level 2 = Non Forcing

·         Pre-emptive Jump (differing when opponent follow bid)

·         2NT = Limit Raise or Better, Weak Jumps

After overcall:

·         New suit = Forcing one round

·         Double = Negative Double

About 1NT overcall (16-18 HCP), System on

About Overcall 1NT = Cappelletti

Response Roman Key Card Blackwood = 1430

4^th Suit = Game Force

Unusual 2NT

Michael Cue bid

Ingberman over Reverses

2-way new minor forcing over 1NT rebid

Wolff signoff over 2NT rebid

Lead:

3 & 5 leads vs. suits and 4^th vs. NT

Signal:

Upside down count & Attitude

Signals (UDCA)

Opening Summary 1NT:

1NT - 2♣ : Stayman

2♦ : No 4 cards major

2♥ : 4 cards ♥, maybe 4 cards ♠

2♠ : 4 cards ♠, no 4 cards ♥

1NT – 2♦/♥ = Transfer to 2♥/♠

New suit bid of responder after transfer = forcing

1NT – 2♠: Transfer to ♣, minimal 6 cards ♣

Opener rebid 2NT = Fit ♣

1NT – 2NT : Transfer to ♦, minimal 6 card ♦

Opener rebid 3C = Fit ♦. New suit rebid by responder = short

3♣ : Weak 5-5 minor, Opener pass or rebid 3♦

3♦ : Game force with 5-5 minors

3♥ : Game force, singleton ♥, 5-4 minors

3♠ : Game force, singleton ♠, 5-4 minors

3NT : Sign off

4♣ : Gerber

4♦ : Transfer to 4♥

4♥ : Transfer to 4♠

4NT : Invitational to 6NT

System on after double over opening 1NT

2♣ (natural) over 1NT :

·         Double = Stayman

·         Lebensohl

OPENING 2NT :

Bid suit major after Stayman by Opener

·         3♠ over 3♥ = Slam try in ♥

·         4♥ over 3♠ = Slam try in ♠

2NT – 3♠ – 3NT – 4♣/♦ = One suiter ♣/♦

                        4♥/♠ = Short with 5-5 minor

OPENING 3NT :

RESPONDER :

3NT – 4♦ : Asking short suit

4♥/♠ : Short ♥/♠

4NT  : Short other minors suit

5♣/♦: 7222 distribution

Opening Minor Suit

·         After inverted minor raise, bid suit at 2 level = stopper, bid suit at 3 level = short

·         Jump suit at 2 or 3 level = Pre-emptive

·         After 1 major over 1 minor, so rebid responder over 1NT rebid by opener:

2♣ : Invitational, check back

2♦ : Forcing, check back

3♣/♦ : To play

·         After 1 major over 1 minor, so rebid responder over 2NT rebid by opener:

3♣ : Opener must bid 3♦, then responder rebid = No forcing

3♦ : Check back Stayman

  

Opening Major Suit:

Single raise = 3 cards constructive raise

3♣ : Bergen Limit Raise

3♦ : Bergen raise with 7-10HCP

3M : Bergen Pre-emptive raise with 0-6HCP

1♥ – 1♠ – 1NT – 2♣ = Check back

1♥ – 1♠ – 2NT – All bids is natural

Some abbreviation of chatting

:-)       : Like to be written 

:-(       : Written sorrowful 

BRB     : Be Right Back

Cu        : See You

cu18r    : “See You L-ater-r”

FWIW   : For what it’s worth

GL (P)   : Good Luck (Partner)

IMHO    : In May Humble Opinion

LOL      : Laughing Out Loud

ROFL    : Rolling On the Floor Laughing

SOTM   : State of the Match

TY (P)  : Thank You (Partner)

tx        : Thanks

WDO   : Well Done Opponent

WDP   : Well Done Partner

YP      : You’re Play

Useful hopefully!

Translated from Magazine Bridge Indonesia, by Toar Polii