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Detail specifications 12GS - Level 1 ★
The jump reverse
Two-suiters
A hand is a two-suiter if it contains: one suit of at least five cards and another of at least four
To describe his two-suiter, the Opener must bid his 2nd suit at the 2 level (or 3)
There are 3 types of two-suiters:
The minimum two-suiter, non-forcing with 12-17HCP. This allows the Responder to stay at the 2 level when returning to the opening suit.
The reverse, forcing for a round with 17HCP or more. The second suit, bid at the 2 level, is higher-ranking than the first. The Responder is thus obliged to go to the 3 level to return to the opening suit.
The 'jump' 2 suiter (second suit is bid with a jump) , game-forcing, from about 20HCP.
A hand is a two-suiter if it contains: one suit of at least five cards and another of at least four
To describe his two-suiter, the Opener must bid his 2nd suit at the 2 level (or 3)
There are 3 types of two-suiters:
The minimum two-suiter, non-forcing with 12-17HCP. This allows the Responder to stay at the 2 level when returning to the opening suit.
The reverse, forcing for a round with 17HCP or more. The second suit, bid at the 2 level, is higher-ranking than the first. The Responder is thus obliged to go to the 3 level to return to the opening suit.
The 'jump' 2 suiter (second suit is bid with a jump) , game-forcing, from about 20HCP.
| S | W | N | E |
|---|---|---|---|
1 |
Pass |
1 |
Pass |
1 |
Pass |
3 |
Pass |
Pass |
K
8
5
4
8
2
K
Q
6
3
A
J
5
Problem E4673 1♠ The 2nd suit bid by the Opener at the 1 level doesn't promise a two-suiter. He doesn't have a 5-card suit
| S | W | N | E |
|---|---|---|---|
1 |
Pass |
1 |
Pass |
2 |
A
K
J
10
A
10
Q
A
K
10
9
8
7
Problem E1212 1♠The Opener bids a 2nd suit, not a two-suiter. The Responder can't know there are 5 diamonds.
The jump reverse
Game forcing - needs values of about 20HCP.
Game forcing - needs values of about 20HCP.
- After a change of suit at the 2 level, this represents a two-suiter with a minimum of 5-5 and at least 15HCP.
- After a bid at the 1 level, the hand needs to be stronger (approx 20HCP) but could possibly be 5-4. These suits need to be strong!
| S | W | N | E |
|---|---|---|---|
1 |
Pass |
2 |
Pass |
3 |
10
4
A
Q
10
9
7
4
A
K
Q
10
8
Problem E1522 After a bid 2/1, the Responder's jump promises a 2nd zone hand and 2 suits with a minimum of 5-5.
| S | W | N | E |
|---|---|---|---|
1 |
Pass |
1 |
Pass |
2 |
A
K
Q
J
9
8
7
4
A
K
Q
10
9
Problem E1680 2♠ This is a jump reverse Game forcing hand with 20HCP and a strong two-suiter 5-4
Important!!!
Your strength doesn't always allow you to bid your two-suiter, especially when your 5 carder is a minor suit and not a major suit... Don't lull your P into a false understanding about the strength of your hand
Your strength doesn't always allow you to bid your two-suiter, especially when your 5 carder is a minor suit and not a major suit... Don't lull your P into a false understanding about the strength of your hand
| S | W | N | E |
|---|---|---|---|
1 |
Pass |
1 |
Pass |
1NT |
6
4
A
Q
9
8
9
7
A
K
10
9
5
Problem E4830 1NT It's not possible to bid CO!
2♥ promises at least 17HCP
2♥ promises at least 17HCP
FR version