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How to Handle Intereference When Your Partner Opens 1NT...Rubensohl
by Leon Lowe
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Opponent's bid...
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What it can mean...
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What you should bid...
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Double
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Not penalty and shows something specific
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Bid around the lowest known suit.
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Double
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Not penalty and shows an array of options not yet known
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Bid as if they had not interfered.
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2C
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Clubs and another suit
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Bid as if they had bid 2C.
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Transfer to Diamonds
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Bid as if they had bid 2D.
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Both Majors
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Bid as if they had bid 2H.
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Other options not yet known
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Bid as if they had not bid. Double is Stayman.
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2D
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Diamonds and a Major
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Bid as if they had bid 2D.
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Transfer to Hearts
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Bid as if they had bid 2H.
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Majors
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Bid as if they had bid 2H.
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2H
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Majors
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Bid as if they had bid 2H.
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Transfer to Spades
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Bid as if they had bid 2S.
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Hearts and a minor
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Bid as if they had bid 2H.
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2S
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Spades and a minor
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Bid as if they had bid 2S.
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Transfer to Clubs
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Bid as if they had bid 2C or 3C depending on available space.
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2NT
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Both minors
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Bid as if they had bid 3C.
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2 undisclosed suits
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Bid as if they had bid 3C.
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General Rules:
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Opponent bids at 2 level
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Responder's 2 level bids are to play and not invitational.
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Doubles are card-showing take out bids.
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Direct jump to 3NT denies a stopper.
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Passing a "nebulous" bid and then doubling is for penalty.
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Opponent bids at 3 level
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Responder's 3 level bids are invitational but not forcing.
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Texas transfers are on thru 3C interference.
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Partner Opens 1NT
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Opponent bids:
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Responder's bid:
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What it means...
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1NT
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2C
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2NT
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Relay to 3C.
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3C
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3D
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Diamonds and Hearts (forcing).
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3H
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Both Majors (forcing).
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3S
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Spades and Diamonds (forcing).
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3NT
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Club stopper with game going values.
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1NT
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2C
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3C
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Transfer to Diamonds (invitational or forcing values).
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3D
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Denies interest. Responder's rebid forces to game:
3 Major shows a 4 card Major with at 5+ Diamonds .
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3M
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Acceptance with values in bid suit, but concern about Clubs.
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3NT
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Acceptance with Club stopper.
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1NT
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2C
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3D
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Transfer to Hearts (invitational or forcing values).
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3H
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Denies interest. Responder's rebid forces to game. A new suit is a Q bid in support of Hearts since 2NT would have shown two suits.
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3S
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Acceptance with inability to bid NT. Tends to be a flat maximum hand.
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3NT
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Acceptance with Club stopper. Flat hand and signoff.
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4m
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Acceptance with Q bid.
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4H
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Acceptance with insufficient controls to Q bid.
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1NT
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2C
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3H
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Transfer to Spades (invitational or forcing values).
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3S
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Denies interest. Responder's rebid forces to game. A new suit is a Q bid in support of Hearts since 2NT would have shown two suits.
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Acceptance with Club stopper. Tends to be a flat maximum hand.
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4 suit
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Slam try. |
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4S
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Acceptance with too few controls to Q-bid. |
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1NT
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2C
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3S
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Transfer to Clubs, BUT...
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3NT
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Club stopper.
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4C
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No club stopper.
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4M
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Both Majors, slam try, guarantees at most one Club loser.
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1NT
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2D
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2NT
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Transfer to 3C.
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3C
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pass
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3C to play.
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3D
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Stayman without Diamond stopper. Opener may be forced to bid a 3 card Major withouth Diamonds stopper. 3NT shows 1.5 Diamond stopper. With a maximum hand, good Diamonds and a 4card Major, opener may conceal Major. Jump to 4H shows a max with both Majors.
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3H
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Hearts and Clubs - forcing.
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3S
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Spades and Clubs - forcing.
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3NT
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Diamond stopper with game values.
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1NT
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2D
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3C
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Transfer to Diamonds.
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3D
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3H
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Both Majors (at least 9 cards), Hearts are better, forcing.
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3S
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Both Majors (at least 9 cards), Spades are better, forcing.
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3NT
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Both Majors with at least one Diamond stopper.
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1NT
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2D
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3D
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Transfer to Hearts. Same structure as 1NT - 2C - 3D sequence above.
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1NT
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2D
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3H
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Transfer to Spades. Same structure as 1NT - 2C - 3H sequence above.
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1NT
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2D
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3S
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Transfer to Clubs.
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3NT
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Diamond stopper, may or may not fit Clubs. Big fit Kxx or better bids 3NT.
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4C
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Denies fit and denies Diamond stopper.
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4D
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Club slam try - guarantees at most 1 Diamond loser.
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4M
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Natural and non forcing, BUT strong and guarantees at most 1 Diamond stopper.
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1NT
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2H
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2NT
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Relay to 3C.
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3C
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Pass
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Weak with Clubs.
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3D
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Weak with Diamonds.
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3H
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Stayman with a heart stopper. Opener may bid NT, 3 or 4 Spades or Q.
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3S
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Shows exactly 4 spades with game values and no Heart stopper.
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3NT
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Heart stopper.
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1NT
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2H
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3C
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Diamonds. Same structure as 1NT - 2C - 3C sequence above.
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1NT
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2H
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3D
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Transfer to Hearts.
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3H
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3S
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Spades and a minor, forcing.
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3N
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Both minors without a Heart stopper. With a Heart stopper better to just show it by bidding 3NT directly.
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1NT
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2H
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3H
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Transfer to Spades. Same structure as 1NT - 2C - 3H sequence above.
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1NT
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2H
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3S
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Transfer to Clubs. Same structure as 1NT - 2D - 3S sequence above.
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1NT
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2S
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2NT
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Transfer to Clubs.
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3C
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Pass
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Weak with Clubs.
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3D
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Weak with Diamonds.
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3H
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Weak with Hearts.
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3S
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Stayman with a Spade stopper.
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3NT
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Spade stopper with game values.
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1NT
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2S
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3C
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Diamonds. Same structure as in previous bidding sequence.
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1NT
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2S
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3D
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Hearts. Same structure as in previous bidding sequence.
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1NT
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2S
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3H
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Transfer to Spades.
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3S
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3NT
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Stayman without a stopper.
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4C
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Clubs and Hearts - forcing.
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4D
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Diamonds and Hearts - forcing.
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4H
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minors with 1 Spade loser. Opener bids accordingly.
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4S
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minors with no Spade loser. Opener bids accordingly.
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Click on this link to open a printable copy of these bids.
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