Example auctions:
Opener 1 ![]() 2 ![]() |
Responder 1 ![]() 2 ![]() |
Opener 1 ![]() 1 ![]() |
Responder 1 ![]() 2 ![]() |
In each auction, the last bid suit is Fourth Suit Forcing, showing game-invitational values or better. It does not necessarily show or deny an actual suit.
Opener's rebids are natural. However, the priorities are:
If playing Fourth Suit Forcing as a one-round-force (not game-forcing), then opener must make jump bids to show extra values and commit the partnership to game.
Opener should strive to show 3-card support if partner's FIRST suit was hearts or spades.
Opener | Responder | |||||
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Opener 1 ![]() 2 ![]() 2 ![]() |
Responder 1 ![]() 2 ![]() 4 ![]() |
Opener can rebid his first suit to show 6-4 shape, or he can rebid his second suit to show 5-5 or longer.
Opener | Responder | |||||
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Opener 1 ![]() 1 ![]() 2 ![]() 3NT (4) |
Responder 1 ![]() 2 ![]() 2NT (3) Pass |
Opener can rebid no-trumps if he lacks 3-card support for partner's major suit.
Opener | Responder | |||||
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Opener 1 ![]() 2 ![]() 3NT (2) |
Responder 1 ![]() 2 ![]() Pass |
This occurs when opener holds a 3-suiter which is short in partner's first-bid suit.
Opener | Responder | |||||
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Opener 1 ![]() 2 ![]() 3 ![]() Pass |
Responder 1 ![]() 2 ![]() 3NT (3) |
Fourth Suit Forcing is OFF if any of these conditions apply:
Opener 1 ![]() 1 ![]() |
Responder 1 ![]() 1 ![]() |
In this auction, responder's 1 bid is natural and forcing for one round. However, it is not Fourth Suit Forcing (i.e. artificial).
Opener 1 ![]() 2 ![]() |
Responder 1 ![]() 3 ![]() |
In this auction, opener's 2 bid was a reverse (forcing), because he bypassed
.
Opener 1 ![]() 2 ![]() |
Responder 1 ![]() 3 ![]() |
Responder is showing a 2-suited hand (at least 5-4).
Opener 1 ![]() 2 ![]() |
Responder 2 ![]() 2 ![]() |
Responder is showing a 2-suited hand with longer clubs.
Fourth Suit Forcing should only be used when responder does not have another attractive bid available, such as:
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