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Detail specifications 12CG - Level 1 ★
The opener after a change of suit (2 over 1)
By changing suit 2 over 1 (without jump), the responder indicates a minimum strength of 11HCP
Your second bid will give him :
- your side's strength: game possible or certain, or a possible slam.
-the distribution of your hand.
His change of suit 2 over 1 is forcing and auto-forcing:not only must you make a bid but he promises to speak again.
Your second bid will give him :
- your side's strength: game possible or certain, or a possible slam.
-the distribution of your hand.
His change of suit 2 over 1 is forcing and auto-forcing:not only must you make a bid but he promises to speak again.
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Problème E2219
2 diamonds is forcing and auto-forcing.
2 diamonds is forcing and auto-forcing.
1) The opener has a fit in the responder's major, (1 spade - 2 hearts sequence)
Indicate this fit as a priority :
Indicate this fit as a priority :
- 4 hearts with a first zone hand and 4 cards go to game in hearts.
- 3 hearts with a second zone hand and 4 cards to see if slam is possible.
- With very strong hands, begin by bidding a maximum two-suiter
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Problème E1622
3 hearts With a second-zone hand and a 4-card fit, check to see if slam is possible.
3 hearts With a second-zone hand and a 4-card fit, check to see if slam is possible.
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Problème E1514
4 hearts If your partner is much stronger than the 11HCP he promised, he will let you know...by continuing the auction.
4 hearts If your partner is much stronger than the 11HCP he promised, he will let you know...by continuing the auction.
2) Without a fit in the responder's major, the opener will give:
- his two-suiter
-his balanced hand
- his one-suiter by repeating his opening suit (6cards)
- his two-suiter
- Minimum two-suiter with 12-17HCP
- Maximum two-suiter as from 15-16HCP (an attenuated maximum two-suiter)
-his balanced hand
- 2NT with a second-zone hand (after a major opening)
- 3NT with a third-zone hand (after a major opening)
- his one-suiter by repeating his opening suit (6cards)
- With jump and a second-zone hand
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Problème E1529
Minimum two-suiter with your hand 12-17HCP (16 here). Don't worry, your partner has promised to bid again.
Minimum two-suiter with your hand 12-17HCP (16 here). Don't worry, your partner has promised to bid again.
Important !!!
- Your strength will not always allow you to give your two-suiter hand, notably when the 5-card suit is the minor and not the major... Don't mislead your partner as to the strength of your hand.
- After the responder's change of suit at 2 level, the opener can announce a maximum two-suiter as from 15-16HCP (and not 17-18). He knows that his side has the strength to go to game.
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Problème E1507
2 heartsYour partner has announced a minimum of 11HCP. You have 12 and no other possibility but to repeat your strong 5-card suit. 2 spades would indicate at least 15-16HCP.
2 heartsYour partner has announced a minimum of 11HCP. You have 12 and no other possibility but to repeat your strong 5-card suit. 2 spades would indicate at least 15-16HCP.
FR version
An example of a change of suit 2 over 1 by the responder which is forcing and auto-forcing