This convention is perhaps the most difficult to understand and explain. However, its effectiveness has caused many bridge players to adopt it in their Partnership Agreement. In essense, it is a mild preempt. Bidding Weak Twos disturbs the bidding of the opponents, obstructs the auction process of the opponents and generally does not permit the opponents to reach game.
Among the pioneers of the bidding auction there were several who simply liked to mess up the bidding. There was Mr. Vanderbilt, Mr. Van Vleck, Mr. Schenken. All great bridge players and men of adventure, who liked to throw stumbling blocks in the path of their bridge opponents.
Over the years, their convention has been used and developed further. Their convention has spawned variations. This has lead to some confusion, because the situation is different when the Weak Two Bid is used in First Seat as opposed to the Third Seat. The situation is different regarding vulnerability. Therefore, position and vulnerability are the two keys to successfully using Weak Two Bids. We shall try to cover as much ground as possible without making it too confusing.
There are only three Weak Two Bids: 2 Diamonds - 2 Hearts - 2 Spades. The length of the suit, depending on vulnerability, is either a 5-card suit or a 6-card suit. The high card points should generally be in the suit bid. Experience shows that there should be no Void in any suit.
The point range is different according to partnership agreement, but in general both following point ranges are acceptable.
5 high card points to 10/11 high card points
6 high card points to 10/11 high card points
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Example 1: |
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Vulnerable: |
East-West | |
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Dealer: |
South |
| South | West | |||||||||||||||||
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| Analysis: | Analysis: | |||||||||||||||||
| South is Dealer. South has 7 HCPs. | West has 17 HCPs | |||||||||||||||||
| East and West are vulnerable. | West would have opened 1 No Trump, | |||||||||||||||||
| South does not know how strong his partner is. | if South had passed. | |||||||||||||||||
| South could jeopardize his partner's holding. | West now sees his Diamond suit in danger. | |||||||||||||||||
| South could preempt and obstruct the bidding | West has another bid: 2  |
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| auction of the opponents. | West, however, cannot inform his partner | |||||||||||||||||
| South could inform his partner of his length | of his strength. | |||||||||||||||||
| and approximate strength. | ||||||||||||||||||
South bids 2  |
| North | East | |||||||||||||||||
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| Analysis: | Analysis: | |||||||||||||||||
| North knows partner is weak. | East knows that his partner has opening. | |||||||||||||||||
| North knows that he is not vulnerable. | East does not know partner's strength. | |||||||||||||||||
| North knows that East and West have game. | East does not have support in Spades. | |||||||||||||||||
| Game by East and West equals 600+ minus points. | East cannot bid 3 Hearts; he only has four. | |||||||||||||||||
| North realizes: down three tricks and | East does not know that West has a Stopper in Diamonds. | |||||||||||||||||
| doubled equals 500 minus points. | Should East try 3 No Trump or 4  ? |
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| North decides to become adventurous. | East does not know whether to bid No Trump. | |||||||||||||||||
| North joins in to obstruct the bidding. | East struggles for a bid. | |||||||||||||||||
| North bids 3 |
But, now we turn the cards around, and see what happens.
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Example 2: |
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Vulnerable: |
East-West | |
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Dealer: |
South |
| South | West | |||||||||||||||||
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| Analysis | Analysis | |||||||||||||||||
| South is Dealer. South has 7 HCPs. | West has 4 HCPs. | |||||||||||||||||
| East and West are vulnerable. | West must pass. | |||||||||||||||||
| South does not know how strong his partner is. | ||||||||||||||||||
| South could jeopardize his partner's holding. | ||||||||||||||||||
| South could preempt and obstruct the | ||||||||||||||||||
| bidding auction of the opponents. | ||||||||||||||||||
| South could inform his partner of his | ||||||||||||||||||
| length and approximate strength. | ||||||||||||||||||
| South bids 2 |
| North | East | |||||||||||||||||
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| Analysis: | Analysis: | |||||||||||||||||
| North knows partner is weak, 5-11 HCPs. | East has 7 HCPs. | |||||||||||||||||
| North knows that he is not vulnerable. | East must pass. | |||||||||||||||||
| North has 21 HCPs. | ||||||||||||||||||
| North has been disturbed by partners Weak Two Bid. | ||||||||||||||||||
| North would have bid Two No Trump. | ||||||||||||||||||
| What are the Guidelines for North? |
What are the Responses to Weak Two Bids? What are the Guidelines for North?
North, in the above example, finds himself in a bind. What should he bid? This is the time for the Partnership Agreement to become activated and enforced. Without a Partnership Agreement, both partners are doomed to either not reach the correct contract or to exceed the correct contract. The problem lies in the fact, that the responder does not know whether his partner has a second suit and that the Responder cannot estimate the point range, which can be between 5HCPs to 11HCPs. In the above example, the contract can either be 3 No Trump or 4 Spades, but that is not the issue. The issue is: What are the bidding possibilities for the responder after his partner has opened with a Weak Two Bid? Below are some general guidelines, not only for the responder but also for the Weak Two bidder.
Before continuing, it is strongly suggested that the dealer, if he decides to preempt with a Weak Two Bid, should generally have something like the following distribution.
2 or less Spades
2 or less Hearts
6 or more Diamonds
3 Clubs2 or less Spades
6 or more Hearts
2 or less Diamonds
3 Clubs6 or more Spades
2 or less Hearts
2 or less Diamonds
3 Clubs
With this pre-agreed distribution, the responder knows immediately that the opener has absolutely no support for him in any other suit. This way, the responder will not be looking for a second suit.
The following Methods are recommended suggestions for the hand of the responder with different and individual strength and distribution.
Method One:
Raise to 3 Diamonds / 3 Hearts / 3 Spades
The responder is low in HCPs.
This bid is used preemptively.
This bid is an obstruction bid.
Expected tricks are between 6 and 9.
Used primarily when not vulnerable.
Method Two:
Raise to 5 Diamonds / 4 Hearts / 4 Spades
The responder has medium HCPs.
This bid is used preemptively.
This bid is an obstruction bid.Caution: Opponents may not have game.
Used primarily when not vulnerable.
Responder expects to be doubled.
Or the responder is high in HCPs.
Responder expects to make game.
Responder has 4 to 6 Quick Tricks.
Method Three:
Suit Takeout
This is an alternative treatment.
The bid is non-forcing.
Indicates no support for the Weak Two Bid.
Indicates a 6 plus card suit.
Responder must bid 2 No Trump.
Method Four:
Bid: 2 No Trump
This bid is a one-round force showing game interest. If opener rebids his suit, he shows weakness and no other side suit. Some bridge players have adopted 3 Clubs to show a minimum.
If opener rebids another suit, this shows a high-card feature, normally an Ace or King and a moderately strong hand.
Using this guideline, it must be revealed to the opponents whether or not the opener is allowed to rebid above the level of three in his original suit.
If the opener is allowed to raise the 2 No Trump bid by partner to 3 No Trump, then this bid shows a solid suit.
Method Five:
Ogust System
This is a system whereby the opener, whose partner has bid 2 No Trump, is able to describe the strength of his hand and the quality of his suit by a series of artificial bids.
Method Six:
McCabe Adjunct
This is a method whereby the Weak Two Bidder and his partner play in a new suit on the Three Level.
Short Version
Responder bids 2 No Trump, forcing.
Opener must rebid 3 Clubs.
Responder may pass if Clubs is his suit.
Or responder bids 3 of his suit.
Opener must pass.OR
If the partnership uses a direct raise of the Weak Two Bid as preemptive,
then the responder rebids Three of the suit of the opener.
This sequence of bids follows:
Opener:
2 Responder:
2 NT Opener:
3 Responder:
3 invites the opener to bid game with a hand containing better than average strength.
OR
If the responder bids a new suit, then the opener should:
1. rebid his own suit with weakness
2. raise the suit of the responder with a doubleton honor
3. show a feature (Ace or King) on his rebid
4. rebid 3 No Trump with a solid suit
Method Seven:
Relays
Relays are the cheapest bids possible, in this case the cheapest response.
2 Diamonds
- 2 Hearts 2 Hearts
- 2 Spades 2 Spades
- 2 No Trump The Relay Method requests the opener to bid a Stopper in another suit, if he has a Stopper. If he has no Stopper in another suit, he rebids his suit. If the Stopper is in the relay suit, the opener rebids No Trump. When using this method, the Relay is the only possible forcing bid by the responder.
In conclusion, it must be noted that Weak Two Bids are more or less a gut-feeling bid, if you are the dealer. However, using the above guidelines to direct you, you and your partner will come to a prearranged Partnership Agreement. Weak Two Bids are also very obstructive to the opponents. They can also present a preempt of the partner, and without a pre-agreed Partnership Agreement, the best contract will generally not be reached. Remember above all else that vulnerability and position at the bridge table should be the deciding factors before making any Weak Two Bid. Any one of the different methods above regarding the bid of the responder can be applied and included in the Partnership Agreement. Both partners should prepare some practice hands and experiment with the different methods, and then decide upon their use.
If you wish to include this feature, or any other feature, of the game of bridge in your partnership agreement, then please make certain that the concept is understood by both partners. Be aware whether or not the feature is alertable or not and whether an announcement should or must be made. Check with the governing body and/or the bridge district and/or the bridge unit prior to the game to establish the guidelines applied. Please include the particular feature on your convention card in order that your opponents are also aware of this feature during the bidding process, since this information must be made known to them according to the Laws of Duplicate Contract Bridge. We do not always include the procedure regarding Alerts and/or Announcements, since these regulations are changed and revised during time by the governing body. It is our intention only to present the information as concisely and as accurately as possible.
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