Lesson 29 - REVIEW

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BR 29.1 - The Multi-2♦ Opening

In recent years the Multi-2♦ Opening bid has become very popular and widespread in Duplicate bridge competition.
This bid replaces the regular weak . . . . . , . . . . . . . . and . . . . . . . . opening bids as outline in this course in Lesson 16.
The Game force 2♣ Opening (also introduced in Lesson 16) remains in use however.

Even if you do not intend to use these bids it is useful to have a general knowledge of their meaning as they are used by many intermediate and better players you might find yourself playing against.

The Multi-2♦ combines a number of possibilities into the one Opening bid. There are a range of combinations used. I have selected one popular version here, which also fits in well with the overall System outlined here by Jazclass.

The Multi-2♦ Opening covers the following hand options :

 a weak 6+card . . . . . ("weak two") of . . . . . points, or a strong . . . . . hand of . . . . . HCP, or a strong . . . . . . shape with . . . HCP, . . . losers or lessand a . . . . . . . in the suit bid

The Multi-2♦ therefore telescopes the weak 2s for . . . . . . into one bid.
It also includes the balanced . . . . . point hand which is too . . . . . for a 1 Opening bid, but too . . . . for a 2♣ Game force.
The third option includes the strong . . . . . . hands without a . . . card suit (. . . . . . ), just under or within the . . . . . . . . opening bid range.

This makes the bids of 2♥, 2♠ and 2NT* available for other purposes which will outlined in the next Lesson.

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BR 29.2 - Weak Responses

There are two weak responses to the Multi-2♦ Opening bid. They are

• 2♦ - . . . . . = "Pass or correct"

• 2♦ - . . . . . . . = "I have no interest in . . . . , but if you have . . . . . instead I might be interested in Game."

Opener's replies are as follow.

Bidding Example of Opener's hand
2♦ - 2♥ - . . . . . . ♠ 8 2   ♥ A Q 9 8 5 2   ♣ J 10 6 2   ♦ 7
2♦ - 2♥ - . . . . . . ♠ Q 10 9 7 6 3   ♥ A 2   ♣ 8 5 4   ♦ 9 3
2♦ - 2♥ - . . . . . ♠ A J 5   ♥ A K   ♣ K Q 7 5   ♦ Q J 8 2
2♦ - 2♥ - . . . . . . ♠ A K J 2   ♥ A Q 10 4   ♣ 7   ♦ K Q 8 3

After a 2♠ response Opener's replies are the same as above, except when Opener holds a weak 6+card . . . . suit.
In that case Opener replies 3♥ with a . . . . . (. .. HCP) and 4♥ with a . . . . . . . (. . . . . HCP).

Bidding Example of Opener's hand
2♦ - 2♠ - . . . . ♠ K Q 8 6 4 3   ♥ 8 3   ♣ A 8 6 2   ♦ 7
2♦ - 2♠ - . . . . . ♠ 9 3   ♥ Q 10 7 5 4 2   ♣ A 9 5 4   ♦ 3
2♦ - 2♠ - . . . . . . ♠ 8   ♥ K Q 9 8 5 2   ♣ A 7 4 2   ♦ 6 2

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BR 29.3 - The Strong Enquiry & Weak options

The 2NT response after a 2♦ opening bid shows 12+ HCPs, is artificial and a strong enquiry similar in nature to the Ogust Convention. There are several possibilities for weak major suit responses. Here follows my recommended version.

Bidding Meaning Example hand
2♦ - 2NT - 3♠ . . . . . suit, . . . . HCPs ♠ A Q 7 6 4 3   ♥ 9 4   ♣ J 7 6 4   ♦ 8 3
2♦ - 2NT - 3♥ . . . . . suit, . . . . . HCPs ♠ 8   ♥ Q 10 9 7 6 2   ♣ A 9 6 4   ♦ 6 2
2♦ - 2NT - 3♦ . . . . . . suit, . . . . . HCPs ♠ A J 8 6 4 3   ♥ 9 8 6   ♣ A 7 6 4   ♦ 5
2♦ - 2NT - 3♣ . . . . . suit, . . . . . . HCPs ♠ 5   ♥ K Q J 9 7 6   ♣ K 8 6 4   ♦ 7 4

After Opener's weak reply of 3♥ or 3♠, the Responder usually . . . . . . .
After Opener's positive reply of 3♣ or 3♦, a . . . . . . . is usually reached.

A further bid by Responder . . . . . from Opener's previous bid asks for the number of top Honours (A, K or Q) in Opener's long suit.

• a bid . . . . . = 1 top Honours         a bid . . . . . = 2 top Honours         a bid . . . . . = 3 top Honours
• For example :

Bidding Meaning Example hand
2♦ - 2NT - 3♦ - 3♥ - . . . . . . = 1 top Honours ♠ A J 8 6 4 3   ♥ 8 6   ♣ A 7 6 4   ♦ 9 5
2♦ - 2NT - 3♣ - 3♦ - . . . . . . = 2 top Honours ♠ 5   ♥ K Q J 9 7 6   ♣ K 8 6 4   ♦ 7 4

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BR 29.4 - The Strong Enquiry & Strong options

With one of the strong option hands, Opener's reply to Responder's 2NT strong enquiry are very simple :

Bidding Meaning Example hand
2♦ - 2NT - . . . . . Balanced with 21-22 HCP ♠ A K   ♥ K J 5   ♣ A Q 8 3   ♦ K J 9 4
2♦ - 2NT - . . . . . . 4-4-4-1 shape, 18+ HCP
4 or less losers
singleton in the suit bid
♠ K Q 8 4   ♥ A Q 10 5   ♣ 4   ♦ A K 9 4

After this the bidding usually reaches a Slam contract.

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BR 29.5 - Bidding after Enemy interference

Interference over a multi-2♦ Opening bid is not uncommon in cases where Opener's bid is based on a weak long major suit. The following standard actions over this are outlined below.

A. After Opponents Double

1. Pass = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Bid a suit = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. Bid 2NT = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. DBL = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B. After Opponents Suit Overcall
1. Pass = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. Bid a suit = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. DBL = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. Cue bid Enemy suit = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C. After Opponents 2NT Overcall
This usually shows a weak 2-suiter of the minors with 8-12 HCPs.
1. DBL = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. 3♥ = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3. 3♠ = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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