Fourth Suit Forcing Bridge Convention - Bidding and Responses

Podcast Information

Roles

Scripts

$\"S\"$ 652 $\"H\"$ J

AKT98 $\"D\"$ KQT985

64 $\"C\"$ K2

AT5
Opener
1

1

2

(2)
3NT (4)

Responder
1

2

(1)
2NT (3)
Pass
\n\n1. Fourth Suit Forcing.\n2. Opener shows his 6-card diamond suit. Note that with a stronger hand (15+ points), he could bid 3![Image 42](https://www.bridgebum.com/d.gif) instead.\n3. Responder invites game with his balanced hand and club stopper.\n4. Opener accepts the game invitation with 14 points.\n\n### 3\\. Bidding no-trumps with a stopper in the fourth suit\n\nOpener can rebid no-trumps if he lacks 3-card support for partner's major suit.\n\n

\n\n1. Fourth Suit Forcing.\n2. Opener jumps to 3NT with a diamond stopper and 15-17 points.\n\n### 4\\. Raising the fourth suit with 4 cards in that suit\n\nThis occurs when opener holds a 3-suiter which is short in partner's first-bid suit.\n\n

\n\n1. Fourth Suit Forcing.\n2. Opener shows a 4-4-4-1 or 5-4-4-0 pattern. Note that he could not have bid hearts at his second turn, because that would have been a reverse promising 17+ points.\n3. Responder knows that opener has a 3-suiter, but chooses to bid 3NT with a balanced minimum.\n\nWhen Fourth Suit Forcing Is Off\n-------------------------------\n\nFourth Suit Forcing is OFF if any of these conditions apply:\n\n* Responder is a passed hand.\n \n* The opponents overcall or make a [takeout double](https://www.bridgebum.com/takeout_double.php).\n \n* The partnership bids all four suits

$\"S\"$ KQ942

$\"H\"$ AJT94

$\"D\"$ A95

$\"C\"$ KQJ3

Opener
1
2
3NT (2)

Responder
1
2 (1)
Pass