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Detail specifications 21ML - Level 2 ★
Minor suit Jacoby transfer
Jacoby transfer In response to a 1 NT opening, a Jacoby transfer is a bid made in the suit right below the one you are interested in (2 ♦ for ♥... 3 ♣ for ♦)
You can use a Jacoby transfer convention :
The hand strength has no upper limit for a Jacoby transfer : it may lead to a slam.
You can use a Jacoby transfer convention :
- For a major suit : with at least 5 cards and a minimum of ... 0 HCP !
- For a minor suit :
- with at least 6 cards in a weak hand
- or 5 cards with more than 8 HCP
The hand strength has no upper limit for a Jacoby transfer : it may lead to a slam.
| S | W | N | E |
|---|---|---|---|
1NT |
Pass |
||
3 |
5
6
5
4
5
4
3
K
10
9
7
4
3
Jacoby with a major suit and 0 HCP
| S | W | N | E |
|---|---|---|---|
1NT |
Pass |
||
2 |
4
J
4
K
J
10
5
2
K
Q
10
8
2
Jacoby with 5 ♣ cards, 8 HCP (or more) and a singleton
Minor suit Jacoby
A minor suit Jacoby transfer is for :
A minor suit Jacoby transfer is for :
- A weak and unbalanced hand in order to play a part game (with a weak but balanced hand, you'd rather pass)
- A strong hand (8HCP or more), a singleton and...no 4 card major (always give priority to the Stayman convention)
- With a strong hand but no singleton, bid 2 or 3 NT according to your strength
| S | W | N | E |
|---|---|---|---|
1NT |
Pass |
||
3NT |
10
4
J
6
2
A
K
Q
10
6
3
8
7
No Jacoby. You can dare 3 NT. You give 6 tricks yourself !
| S | W | N | E |
|---|---|---|---|
1NT |
Pass |
||
3 |
3
A
9
8
9
6
5
K
Q
10
9
7
5
Problème E5199
Go for a ♦ Jacoby transfer because of your ♠ singleton, which forbids you to close at 3 NT.
Go for a ♦ Jacoby transfer because of your ♠ singleton, which forbids you to close at 3 NT.
Development after a minor Jacoby
The opener must complete the transfer
The responder :
The opener must complete the transfer
The responder :
- Passes with a weak hand
- Names his singleton : the french system uses a quite tough convention :
- 3 ♥ = singleton ♠
- 3 ♠ = singleton ♥
- 3 SA = singleton in the other minor
- Describes his two suited hand
- Describes his one suited hand with slam ambitions
- With a 16-17 HCP balanced hand, he proposes a slam : 4 NT.
A
10
5
2
Q
7
6
K
10
K
Q
J
9
| S | W | N | E |
|---|---|---|---|
1NT |
Pass |
||
2 |
Pass |
3 |
Pass |
3 |
K
J
9
2
A
Q
9
8
7
6
10
7
4
Problème E5200
3 ♥ actually shows a ♥ singleton.
3 ♥ actually shows a ♥ singleton.
Development : the opener closes either in NT or in the suit
- If he guards the singleton suit, he concludes : 3 NT
- If he has no stopper in the singleton suit, the opener chooses to play trump and makes a game or a slam bid
- Responding to 4 NT, the opener will go to 6 NT with a maximum hand
| S | W | N | E |
|---|---|---|---|
1NT |
Pass |
2 |
Pass |
3 |
Pass |
3 |
Pass |
3NT |
10
6
5
2
A
K
J
A
J
7
Q
J
8
Problème E5202
The opener is guarding his partner's singleton suit (♥) : 3 NT
The opener is guarding his partner's singleton suit (♥) : 3 NT
FR version