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Detail specifications 41BA - Level 1 ★
Responding to level 1 overcalls
Your partner has overcalled a suit at level 1
He may have 8 to 17 HCP (with 18 HCP or above, he would have doubled).
You must pay attention to :
1) Principles :
- Raise bid is preemptive
- Raise bid is non forcing
- With 11 HCP and above, a cue-bid is asking for more information
- Level 1 shift bid is forcing
- Level 2 shift bid shows a rather weak hand with a nice suit. It is not forcing.
He may have 8 to 17 HCP (with 18 HCP or above, he would have doubled).
You must pay attention to :
- his strength. He may have less HCP than if he had opened
- the opener's position, right after you...this downgrades your honors that might be captured !
- the forcing/ non forcing rules...very different when you respond to the overcaller.
1) Principles :
- Raise bid is preemptive
- Raise bid is non forcing
- With 11 HCP and above, a cue-bid is asking for more information
- Level 1 shift bid is forcing
- Level 2 shift bid shows a rather weak hand with a nice suit. It is not forcing.
2) Applications
Less than 7-8HCP : PASS
With a support, follow the law of total tricks
With 11-12 and above: cue bid the opener's suit
Less than 7-8HCP : PASS
With a support, follow the law of total tricks
- With 8 nice HCP and 3 trump cards : raise at the lowest level
- With more than 8 and 4 trump cards :preempt with a jump raise
- With 11 HCP and 4 or 5 trump cards : game
With 11-12 and above: cue bid the opener's suit
| S | W | N | E |
|---|---|---|---|
1 |
1 |
Pass |
|
2 |
J
9
3
2
A
J
8
3
2
K
7
6
5
Exercise E5587 Law of total tricks : at least 8 trumps in your line, you can go for 8 tricks.
| S | W | N | E |
|---|---|---|---|
1 |
1 |
1 |
|
3 |
Q
J
5
2
10
9
4
2
8
K
Q
8
6
Exercise E4858 Jump raise with 4 trumps and 8 HCP.
Suit shift
- Level 1 : forcing, trying to find a major fit or a NT contract.These shifts require at least 8 HCP, and a well constructed hand.
- Level 2 : non forcing, denying a support in the overcalled suit. They require a strong suit , most of the time a 6 carder.
- Jump shift : prospecting, showing a 4 (or more) card support and a nice 5 carder in the named suit.
| S | W | N | E |
|---|---|---|---|
1 |
1 |
Pass |
|
1 |
K
J
10
7
7
4
A
9
7
3
Q
8
4
Exercise E5583 1 ♠ 4 ♠ cards, 10 decent HCP : level 1 forcing shift, in case there is a 4-4 ♠ fit.
Cue-bids
- Forcing : they tend to find a major fit or a NT contract.
- With a jump : Splinter, showing a shortage in the opening suit and a nice partner support.
| S | W | N | E |
|---|---|---|---|
1 |
1 |
1 |
|
2 |
A
J
8
7
6
5
A
10
6
2
K
10
8
Exercise E5301 2 ♣ Cue-bid : investigation bid. That is the only possible bid to show your strength. You are too strong for a ♦ support, and you can't bid NT because of your ♥.
FR version