Advanced Bridge

 

Lesson 15

 

REGULAR, REVERSE, & TWO-WAY REVERSE

 

DRURY CONVENTIONS

 

BACKGROUND: After two previous passes at the table, the third player may sometimes opt to open the bidding relatively freely; i.e., with several HCP's less than that normally required. This is partly because of the negation of the responsibility of a rebid (partner has already passed), partly because the bid made may inconvenience the forth player who has yet to have the opportunity to open the bidding (the player who is likely to have the best hand at the table), and partly because partner may utilize the information for lead directing significance should that team ultimately become defenders of an eventual contract by the opponents.

 

PURPOSE: After passing, the responder to a third or fourth‑chair opening bid faces two special

problem in describing his/her hand:

(1) A simple change of suit is no longer forcing (opener knows responder has less than

opening values), so responder cannot make a temporizing bid; opener my pass.

(2)   The opener may well have opened the bidding on a sub‑minimum hand so that a jump

response by responder could easily get the partnership too high.

In short, responder does not have a good bid available which will describe the maximum previously-passed hand with support for opener's suit. Determining the nature (full or sub‑minimum) of partner's third or forth seat opening is crucial in finding the best level of the final contract. Utilizing one of the Drury Conventions enables responder to show his/her fit and values WITHOUT jumping to the 3‑level.

 

DEFINITION: - A convention that uses an ARTIFICIAL 2C response by a

PREVIOUSLY-PASSED HAND in response to a third-hand or fourth-hand opening of a Major suit by partner. The responder must have 11-12 HCPs; i.e., very nearly an opening bid (Invitational Quality), as well as primary support for partners Major suit. This Convention is Alertable.

 

Examples: P P lS(lH) P P P P lH(lS)

2C (or) P 2C

 

PURPOSE: - To ask the opening bidder to clarify the strength of his/her opening bid; i.e.,

whether it be a full (13-14 Points or better) or a sub‑minimum opening strength (11-12 HCPs) so as to seek the possibility of game WITHOUT OVER‑BIDDING. The artificial 2C bid guarantees support; i.e., at least 3 cards for the opening bidder's Major suit.

 

Example: Q8532 P P 1S P

K864 2C

Q8

KJ (Note: Without Drury, Responder would have no

convenient response to Openers 1S bid. Indeed, 2S would have been an underbid,

and 3S might well be an overbid if Opener had a sub-minimum opening count.

 

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INVOKING THE CONVENTION: In order to initiate this Convention, the Responder bids an artificial "2C" in response to a third or forth chair opening bid of one (1) of a Major (Hearts or Spades). This 2‑Club response does NOT say anything about responder's Club holding (unless Clubs are subsequently rebid by responder); but simply asks opener whether or not he/she has a full opening bid.

 

 

 

RESPONSES BY THE OPENING BIDDER:

 

a.      If opener had a sub‑minimum opening hand (11-12 HCPs), the opener then rebids an artificial 2D which signals less than a full opening HCP count.

 

Example: P P 1H P

2C P 2D

 

Note: The 2D artificial response may never be passed by the Drury bidder. If opener exhibits a sub-minimum hand by responding the artificial 2D bid, responded can then return to 2 of the Major.

 

b.      If a full opening (13 or more HCPs) hand, opener rebids his/her major suit at the two (2) level (2H or 2S) ‑ or go directly the four (4) level if more than a full opening hand; i.e., 15 HCP or more.

 

Examples: P P 1H P (or) P P 1S P

2C P 2H 2C P 4S

 

c. 3C or 3D ‑ A natural rebid with more than full values for the original 1H or IS opening along with a second suit as bid.

 

d. 3H or 3S ‑ A game-force and slam-interest opening hand.

 

 

 

REBIDS BY THE DRURY BIDDER:

 

a.      If opener has signaled a full opening hand, the Drury bidder may then invite to game, or go directly to the 4-level if more than a minimum full opening hand.

 

Examples: P P 1S P (or) P P 1S P

2C P 2S P 2C P 2S P

3S P P P 4S P P P

 

b.      If opener has signaled a sub‑minimum opening hand, the Drury bidder can then return to the agreed-upon suit at the two level or compete to the three level, if so desired.

 

Examples: P P 1H P P P 1S P

2C P 2D P (or) 2C P 2D P

2H P P P 2S 3H P P

3S P P P

 

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OPENER'S RESPONSE TO "2C" AFTER INTERFERENCE BY THE OPPONENTS:

 

A pass should signify a sub-minimum opening and anything else signifies a full normal opening bid.

 

 

 

THE REVERSE DRURY CONVENTION

 

Definition: - A more modern version of the Drury convention in which a third- or fourth-

position Opener of a Heart or Spade, in response to an artificial 2C response by a

previously-passed partner (asking Opener to clarify the strength of his/her opening bid) responds as follows:

 

  1. Returns to his original Major suit with a sub-minimum opening count AXXXX

KX

P P 1S P AXXX

2C P 2S XX

 

 

(or)

 

 

  1. Any other bid is natural, and forward-going showing a full opening count AKXXX

KXXX

P P 1S P AX

2C P 2H XX

 

 

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THE TWO-WAY REVERSE DRURY CONVENTION

 

Definition: - Opener, who has previously passed, in response to Partners third position opening bid of a Heart or a Spade, and holding Major suit support and invitational strength (11+ HCPs or 8 Losers) will bid as follows:

 

a.       2C with 3-card support

b.  2D with 4-card support (All other bids which follow are identical as

in regular Reverse Drury)

 

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