After an economical two-suited bid

Economical Two-Suiter

For the opener's hand to be considered a two-suiter, the second suit must be named at the 2-level (not at the 1-level).
For the two-suiter to be economical, the second suit must be cheaper than the first.
The opener who bids an economical two-suiter promises a strength of 13 to 19 HCP.

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Exercise 20131 The bid of 1 Spade does not guarantee a two-suited hand.

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Exercise 20388 By bidding 2 Clubs, the opener promises 5 hearts and at least 4 clubs.

The opener's bid of an economical two-suiter is not forcing.
After a response at the 1-level, the bid of an economical two-suiter is not forcing.

Without a fit and with less than 10 HCP, the responder can simply pass.
They can also support the opener's major with 2 cards: this shows a simple preference.
Support at the 3-level is a strong bid indicating slam interest.

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Exercise 20387 With less than 6 total points, the responder passes after the opener's economical two-suiter. Here, game seems quite distant!

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Problem E5367
The preference bid of 2 Hearts will allow the opener to play in a 5-2 fit rather than a 4-3 fit.

After a change of suit at the 2-level by the responder
The responder's supports are then game forcing. If the supported suit is a major, the responder is expressing slam interest.

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Problem E0153
The delayed support of the opener's major is a bid that indicates slam interest.

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Exercise 27386 3NT is a game-forcing support bid that denies a stopper in spades.

No-trump bids promise a stopper in the unbid suit and deny a major fit

2NT with 11-12 HCP
3NT with 13-15 HCP

Support at the 3-level of the opening major is a slam bid

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Problem E9592
2NT with 11-12 HCP: the sequence is not forcing.

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Problem E20398
3NT with 13-15 HCP without a major fit.

Main

Detail specifications 22FB - Level 1 ★

After an economical two-suited bid

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