Opener's 2nd bid after a 2 Trêfle response (2/1)

2 ♣ response to a 1 in a major opening
After a 1 in a Major opening (in 1st or in 2nd position and with no overcall, otherwise, there is no 2/1 GF.) and a 2♣ response, the bidding is now game forcing. What does the 2♣ response show:

1-It is basically Natural but, in practice it indicates that ♣ is the longest suit.. but may have only 4 cards

2- It shows 'opening values' given his combination of HCP and shape (and its expected fit withj yours), your partner expects there will be at least a game

The opener's initially focuses on showing his shape. The responder will then be well-placed to direct the partnership to the best contract.
The priority is to decide on the suit for the final contract.

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Problem 40300: Bid 2♣. You can't raise spades with only two. The hand is wrong for NT (no ♥ stopper)--2 ♥ with only a 4-card suit is a no-no . That leaves ... 2 ♣... but fortunately the 2/1 system will give you time to investigate the right contract

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Problem E40301 2♣After 1♠ by your p; gladly bid 2♣ and force to game. your hand is great in support of spades. However, after 1♥ , content yourself with 1NT (forcing). Picture opener with, say:PI: A 7 6 CO:K J 8 7 5 CA:J 4 2 TR:K 3, and where are we going?

1 ♥ opener's 2nd bid after a 2 ♣ response.
Opener bids NATURALLY. Yes. Good-old Natural. If opener has a second suit (of 4 or more cards), he bids it. If he is flat, he bids notrump. If he has 6+ cards in the major opened, he repeats it. No jumping... see exceptions later

1-2 ♦ '... or 3♦) Natural, 5+ cards in ♥ and 4+ cards in ♦ (Strength is not known yet)

2- 2♥ Natural, 6+ ♥ (any strength)

2- 2♠ Natural, 5+ ♥ and 4+ ♠ (any strength)

3- 2NT

Natural, 5 and 3-3-2 in the other suits (mini: 12-14 or maxi 18-19HCP)

2- 3♣ Natural, 5+ ♥ and 4+ ♣ (any strength)

Most of the time, there’s no need to jump, since the partnership is already forced to game.

Problem E40302 2♦First priority is to show 5+ diamonds. Partner will bid a major next if he has four.

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Problem E40303 2NTDenying 5+ diamonds and denying a 4-card major (so, 3343 or 3244).

1 ♥ opener's jump 2nd bids after a 2 ♣ response.
As the partnership is committed to game, there is normally no need for the opener to Jump. So he will only use this option to show patterns, not strength !. His priority is to ensure the right trump is found. The options are

1-Jump rebid the opening suit (1♥ 2♣ 3♥)showing a "solid" 6+ card suit. This means that opposite a void, the suit can be expected to run.

2- Splinter bids (1♥ 2♣ 3♦ or 1♥ 2♣ 3♠) Showing 5♥, 4+♣ and a short in the suit bid

2- Jumps in NT (1♥ 2♣ 3NT) Natural, 3532 or 4531 with a 2nd zone hand (15-17HCP)

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Problem E40307 3♠Shows an extreme two-suiter ♦ - ♠ typically 6-5 in a strong hand

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Problem E40307 3♣Shows a minor two-suite 5+-5

1 ♠ opener's 2nd bid after a 2 ♣ response.
After a ♠ opening, the logic is the same :Opener bids NATURALLY. Yes. If opener has a second suit (of 4 or more cards), he bids it. If he is flat, he bids NT. If he has 6+ cards in the major opened, he repeats it. No jumping...

1-2 ♦ '... or 3♦) Natural, 5+ cards in ♠ and 4+ cards in ♦ (Strength is not known yet)

2- 2♥ Natural, 5+ ♠ and 4+ ♥ (any strength)

2- 2♠ Natural, 6+ ♠ (any strength)

3- 2NT

Natural, 5 and 3-3-2 in the other suits (mini: 12-14 or maxi 18-19HCP)

2- 3♣ Natural, 5+ ♠ and 4+ ♣ (any strength)

The jumping options are:

1-Jump rebid the opening suit (1♠ 2♣ 3♠)showing a "solid" 6+ card suit. This means that opposite a void, the suit can be expected to run.

2- Splinter bids (1♠ 2♣ 3♦ or 1♠ 2♣ 3♥) Showing 5♥, 4+♣ and a short in the suit bid

2- Jumps in NT (1♠ 2♣ 3NT) Natural, 5332 or 5233 with a 2nd zone hand (15-17HCP)

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Problem E40305 3♦We may be heading to 6 , but for now, let's just tell partner about our support

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Problem E40306 3♦Show your length in ♣...May still end up in NT...

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Detail specifications 12CL - Level 3 ★

Opener's 2nd bid after a 2♣ response (2/1)

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