Jacoby 2 Notrump (Jacoby 2NT, Jacoby Two Notrump)
After a major suit one level opening bid by partner,
the conventional response of 2 Notrump shows 4+ card trump support
with an opening hand and interest in slam. After responder's 2 Notrump
call, opener's rebids to Jacoby 2 Notrump
are typically "slow-shows - fast denies" (strength)
| Response |
Meaning after Jacoby 2
Notrump (Jacoby Two Notrump) |
|
4
of Same Major |
Minimum hand |
|
4 of New Suit |
A good 5 card side suits.
Note: some play this as a void |
|
3
Notrump |
14+ points and 5 in Major |
|
3 of Same Major |
14+ points and 6+ in Major |
|
3 of New
Suit |
Splinter, indicating a
singleton or void in the bid suit (most partners agree responder should
have good trump honors or other extra values) |
Notes:
|
1. |
Some partners play different
ranges after Jacoby 2 Notrump, such as:
|
4 of Same Suit |
Game signoff with 12-14
points and strength in bid suit |
|
3 Notrump |
14-16 points with a
balanced hand |
|
3 of Same Major |
17+ points in bid suit |
|
|
2. |
Some partnerships consider 3
trump sufficient when holding 2 strong honors |
|
3. |
A minority play opener's 4
level new suit bid shows a void |
When opponent (advancer) interferes after responder bids Jacoby 2 Notrump:
Method 1: Basic
| Response |
Meaning |
| 4
of Same Major |
|
1H - (P) - 2N -
(3D);
4H |
4H is signoff, no shortness
|
|
| Pass |
|
1H - (P) - 2N -
(3D);
P |
Pass shows shortness in
opponent's bid suit |
|
| New Suit |
|
1H - (P) - 2N -
(3D);
3S |
Shortness in bid suit |
|
| 3 Notrump |
|
1H - (P) - 2N -
(3D);
3N |
Medium or maximum hand,
no shortness |
|
Method 2:
Advanced (Mike Lawrence treatment), advancer interferes after
Jacoby 2 Notrump
| Response |
Meaning |
| 4
of Same Major |
|
1H - (P) - 2N -
(3D);
4H |
4H is signoff
|
|
| Pass |
|
1H - (P) - 2N -
(3D);
P |
Pass is "waiting", with
no controls and a good hand, or control with a poor hand, or
strength and length in opponent's bid suit (hoping for Double) |
|
| Double |
|
1H - (P) - 2N -
(3D);
X |
Double shows
control (Ace or King) in opponent bid suit |
|
| 3 of Same Major |
|
1H - (P) - 2N -
(3D);
3H |
6+ trump and a
control
in opponent's bid suit |
|
| 3
Notrump |
|
1H - (P) - 2N -
(3D);
3N |
Singleton in opponent's
bid suit (or void if opponent bid 3S) |
|
| 4 Minor |
|
1H - (P) - 2N -
(3D);
4C |
Singleton in minor and
a control in opponent's bid suit |
|
| Cuebid 4
in opponents' bid suit |
|
1H - (P) - 2N -
(3D);
4D |
Void in opponent's bid
suit (or 3 Notrump if opponent bid 3S) |
|
When advancer interferes after responder bids Jacoby 2 Notrump and opener has
passed the bidding, showing various hand shapes (see above):
| Response |
Meaning |
| Double |
|
1H - (P) - 2N -
(3D);
P - (P) - X |
Double for Penalty
|
|
| 3 in new Major |
|
1H - (P) - 2N -
(3D);
P - (P) - 3S |
Ace in suit and
0-1 loser in opponent's bid suit |
|
| 3
Notrump |
|
1H - (P) - 2N -
(3D);
P - (P) - 3N |
King of opponent's bid
suit |
|
| 4 in Minor |
|
1H - (P) - 2N -
(3D);
P - (P) - 4C |
Ace in suit and 0-1
losers in opponent's bid suit |
|
Also
see books on
Slam and other slam conventions:
1430,
Baby Blackwood,
Blackwood, Controls,
Exclusion Blackwood/Voidwood,
Gerber,
Grand Slam Force,
Jacoby 2 Notrump,
Key Card Blackwood,
Kickback,
Last Train, NAMYATS,
Pick a Slam,
Quantitative Notrump Bid,
Rolling Blackwood,
Serious 3 Notrump,
Slam Try - Stayman,
Splinters,
Opener
Jump Shift,
Strong Jump Shift, and legacy treatments as
Roman Asking Bids,
Roman Blackwood,
Roman Gerber. Slam
treatments
also include interference of
an overcall by opponents, as
Negative Slam Double,
DOPI,
DEPO, ROPI.
|
