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- JACOBY TRANSFER BIDS
-
-
- One advantage of transfer bids is that they enable the strong hand
- to become declarer, so that the opening lead will come up to her
- strength. Contrary to common belief, this is not the main advantage
- of transfer bids at the two level. More important is that transfers
- may be made with hands of any strength: weak, invitational,
- game-going, or even a slammish hand.
-
- Suppose a 2H response is a natural sign-off bid. How do you invite
- game in hearts? Or suppose you have hearts plus a minor suit. How
- do you show both at a low level? Using 2D to show hearts, you have
- it both ways. With a bad hand and long hearts, you pass opener's
- 2H bid. With a stronger hand, you bid again. Your 2NT rebid shows
- a 5-3-3-2 hand with five hearts and invitational strength, 3NT the
- same but with game-going strength. A minor suit rebid is forcing,
- showing a two-suited hand. A raise to 3H is invitational, showing
- at least six hearts. A jump to 4H is slam invitational, because you
- would make a Texas transfer bid (4D) in response to 1NT with no
- slam interest.
-
- The result of all this is that Jacoby transfers provide many ways
- for responder to describe her hand after a notrump opening.
-
- Opener Responder
- 1NT 2D - asks opener to bid 2H
- 2H - asks opener to bid 2S
-
- These transfer bids can be based on anything from a complete bust
- to a very strong hand. They show at least five cards in the
- indicated major. The converse is not true: Failure to use Jacoby
- does not deny a five-card or longer major (e.g., Stayman is
- frequently used with five spades).
-
- Transfer bids apply over an artificial double of 1NT that shows a
- one-suited hand, and over an artificial 2C overcall that shows an
- unspecified suit ("Hamilton"), but do not apply over a business
- double, a natural overcall, or an artificial call that shows two
- suits. See WHEN THE OPPONENTS INTERVENE in this book and chapter
- DEFENSE VS TWO-SUITED CONVENTIONS in the book "Countermeasures."
-
- If opener has a super hand in support of the indicated suit, he
- can make a notrumper cue bid (q.v), bid 2NT, or jump to three of
- the major:
-
- Opener Responder
- 1NT 2D
- 2H - the usual bid
- 2S/3C/3D - notrumper cue bid
- 2NT - two of top three heart honors
- 3H - great heart support, good hand
-
- With a minimum notrump, opener should bid just 2H, no matter what
- his holding in hearts. The notrumper cue bids show great four-card
- heart support, an outside doubleton, and a maximum notrump. The 2NT
- bid shows a good hand for notrump in addition to the heart honors.
- Responder can bid 3NT with S-32 H-Q108763 D-K2 C-875, so opener had
- better have quick tricks outside and good stoppers: S-AJ9 H-AK5
- D-J987 C-AJ10. The jump to 3H shows a fine hand in support of
- hearts but no outside holding suitable for a notrumper cue bid:
- S-A94 H-AK105 D-Q3 C-A643.
-
- Opener must never go past three of the indicated major unless
- invited to do so, and must pass a sign-off bid in three of that
- major. Responder could be really broke: S-983 H-107653 D-986 C-92.
-
- Opener Responder
- 1NT 2D
- 2H 2S is the Unbalanced Heart Convention (UHC)
- 2NT shows 5-3-3-2 distribution, invitational hand
- 3NT shows 5-3-3-2 distribution, game-going hand
- 3C/3D is forcing to game, showing a second suit
- 3H is invitational, six or more hearts, balanced hand
- 3S/4C/4D is a splinter bid, slam try
- 4H is a slam try, balanced hand (use Texas if weaker)
- 4NT shows a 5-3-3-2 hand, invitational, good heart suit
- 4S shows a 5-3-3-2 hand, invitational, poor heart suit
-
- UHC is described in the book "Marvin's Conventions and Treatments."
- The 2S rebid is not needed to show five hearts and four spades
- because Stayman is used with a hand of that sort. Over the 3S
- splinter bid, opener can sign off in 3NT with secondary spade
- strength and poor heart support. Over a splinter in clubs or
- diamonds, however, 4NT would be Roman Key Card Blackwood, so he
- must sign off in 4H with any unsuitable hand.
-
- A Jacoby transfer followed by a jump to game indicates mild slam
- interest, balanced hand, strong suit of at least six cards:
-
- Opener Responder
- 1NT 2D
- 2H 4H - good suit, balanced hand
-
- Use the Texas transfer with no interest in slam. If the suit is
- not strong, start with a Stayman 2C bid and then bid the suit. If
- the hand is unbalanced, use Stayman with spades (bidding 2S after
- 2C), UHC with hearts, or start with a jump takeout response.
-
- Rebids after a Jacoby 2H response are similar, except that
- responder can show 5-5 or better in the majors, not just major-
- minor.
-
- Opener Responder
- 1NT 2H
- 2S 3C/3D/3H - second suit, forcing
-
- With a weak 5-5 in the majors, transfer to spades and hope for the
- best. There is no way to show both majors without inviting game and
- possibly getting too high, unless the opposition comes into the
- bidding and you chance a 3H bid.
-
- A hand with five spades and six hearts presents a problem, because
- transferring to hearts and then bidding 2S is UHC, while 3S is a
- splinter bid. Instead of transferring, use Stayman. Bid 2H after
- the expected 2D response, then bid spades on the next round (a
- forcing sequence).
-
- A second suit at the three level is not forcing if the bid follows
- an opposing overcall. A splinter must be a jump:
-
- South West North East
- 1NT Pass 2H Pass
- 2S 3D 3H - weak two-suiter
- 3S - not invitational
- 4C - natural, forcing
- 4H - splinter
- Dbl - invitational spade hand
-
- Be sure to read WHEN THE OPPONENTS INTERVENE for appropriate
- action when the transfer bid gets overcalled or doubled, or when
- opener's response to a transfer bid is overcalled.
-
- With two-suited hands that lack the strength to insist on game but
- have enough to invite, don't use a Jacoby sequence. Respond 2C
- (Stayman) with five spades and any other suit. With five hearts
- plus a minor suit, use UHC.
-
- With 5-4 in the majors and an invitational hand or better, use
- Stayman. With a weaker hand, just transfer to the five-card suit
- and pass the response.
-
- When responder shows the 5-3-3-2 balanced sort of hand by rebidding
- notrump, opener usually stays in notrump with a doubleton in the
- indicated suit. With three-card support he uses his judgment, often
- staying in notrump with a 4-3-3-3 hand and scattered strength. With
- four-card support he normally returns to the suit. Opener must also
- decide whether to bid (or try for) game:
-
- Opener Responder
- 1NT 2H
- 2S 2NT
- Pass - minimum, doubleton spade or 4-3-3-3 distribution
- 3S - minimum, three or four-card spade support
- 3NT - maximum, doubleton spade or 4-3-3-3 distribution
- 4S - maximum, three or four-card spade support
- 3C/3D/3H - "Have support for you, need help in this suit"
-
- If the side suit trial bid fits responder well, she may be able to
- bid a marginal game because of the good fit. "Need help here" means
- a broken suit (e.g., KJ43), not an xxx holding. Responder will
- consider Qxx as help, a small doubleton as no help. This is not an
- occasion for a notrumper cue bid, since responder cannot have a
- short suit. Notrumper cue bids are designed to discover the
- duplication of strength opposite a singleton.