Technical specifications
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21DP - Jacoby 2 NT (Sayc/2/1) - level 2
★
The Jacoby 2 NT is a convention that can be used by the Responder on the opening of 1 in a major ..
This response which is very precise promises :
A long fit
4 cards in Opener's major (not 3 )
Game force Values
(13HCP or more
This 2 NT is conventional ; it asks the opener to describe his hand further so that slam prospects can be investigated properly.
S
W
N
E
1
Pass
2NT
Q
J
10
3
A
9
7
6
Q
8
2
K
Q
Problem E27472 Jacoby 2 NT is a Game forcing bid (and invite ro investigate a possible slam) that promises a 4 cards fit and at least 13 HCP
Openers rebids after a Jacoby 2NT
Different systems exist. Kit recommends the following one :
Bid :
a singleton at the 3 level (3
♣
for
♣
shortness, 3
♦
for
♦
...)
a
three level trump rebid
shows 17+HCP and slam interest. It asks responder to describe his hand further
Bidding
a new suit at the 4 level
shows a two suiter at least 5-5
Bidding
3NT
shows a balanced hand and 13 to 15 HCPs
Rebidding
the opening major at the 4 level
is a sign-off, showing a minimum hand !
Q
J
10
3
A
9
7
6
Q
8
2
K
Q
S
W
N
E
1
Pass
2NT
Pass
3
A
K
9
7
5
8
A
K
10
10
9
8
7
Problème E20521
After a Jacoby 2NT , the opener will show a shortness by bidding a new suit at the 3 level
Q
J
10
3
A
9
7
6
Q
8
2
K
Q
S
W
N
E
1
Pass
2NT
Pass
4
A
K
9
7
5
Q
8
A
K
J
10
9
9
Problème E20523
With a 5-5 two suiter, the opener will bid his 2nd suit at the 4 level
Responder's rebids
Responders rebids will primarily aim to explore potential slam opportunities :
Potential rebids are :
After any
3 level rebid
by the opener, the responder can bid any suit to show a first round control (ie Ace or void)
After any rebid by opener,
4NT
is RKC Blackwood
Q
J
10
3
A
9
7
6
Q
8
2
K
Q
S
W
N
E
1
Pass
2NT
Pass
4
K
9
7
6
5
Q
8
5
A
K
9
10
9
Problème E20524
With a minimum hand the opener tries to tamper the ambitions of the responder
Q
J
10
3
A
K
Q
9
8
2
K
Q
5
S
W
N
E
1
Pass
2NT
Pass
3
Pass
4NT
Pass
5
A
K
9
7
5
8
A
K
10
10
9
8
7
Problème 20525
On our way to a slam