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Strong Jump Shift by Opener - A skip bid response in a new suit, as:
1H - 1S;
3C
Opener's Jump Shift (Strong Jump Shift) typically show 19-22 points, thus game
forcing when responder freebid shows 6+ points.
Definition of Opener's Strong Jump Shift: Opener's jump bid is in a rank
higher than both responder's suit and the opener's initial suit rank.
Additional bids are included to contrast similar bids sometimes confused by
novice and intermediate players:
Strong Jump Shift by opener with 19+ points:
| Bid |
Meaning |
|
1C - 1D;
2H |
Strong Jump Shift, 19 - 22 HCP
(Opener's second suit is above both opener's and responder's
suit) |
|
1C - 1H;
2S |
Strong Jump Shift, 19 - 22 HCP
(Opener's second suit is above both opener's and responder's
suit) |
|
1D - 1H;
2S |
Strong Jump Shift, 19 - 22 HCP
(Opener's second suit is above both opener's and responder's
suit) |
|
1D - 1H/S;
3C |
Strong Jump Shift, 19 - 22 HCP
(typical Opener 3 level jump rebid, below opener's and
responder's suit) |
|
1H - 1S;
3C/D |
Strong Jump Shift, 19 - 22 HCP
(typical Opener 3 level jump rebid, below opener's and
responder's suit) |
|
1S - 1N;
3C/D/H |
Strong Jump Shift, 19 - 22 HCP
(Opener 3 level jump rebid over 1 NT) |
Regular rebid by opener:
| Bid |
Meaning |
|
1C - 1D;
1H/S |
Up to 18 HCP - responder could
pass (no need to reverse with 17-18 HCP) |
|
1C - 1H;
1S |
Up to 18 HCP - responder could
pass (no need to reverse with 17-18 HCP) |
|
1D - 1H;
1S |
Up to 18 HCP - responder could
pass (no need to reverse with 17-18 HCP) |
Reverse rebid by opener with 17+ points:
| Bid |
Meaning |
|
1C - 1H;
2D |
17+ HCP, 5+ Clubs and 4+
Diamonds (Clubs longer), reverse suit is above opener's first
bid but below responder's bid |
|
1C - 1S;
2D/H |
17+ HCP, 5+ Clubs and 4+
Diamonds/Hearts (Clubs longer), reverse suit is above opener's
first bid but below responder's bid |
|
1D - 1S;
2H |
17+ HCP, 5+ Diamonds and 4+
Hearts (Diamonds longer), reverse suit is above opener's first
bid but below responder's bid |
|
1H - 1N;
2S |
17+ HCP, 5+ Hearts and 4+
Spades (Hearts longer), reverse suit is above opener's first
bid but below responder's bid |
|
1H - 2C/D;
2S |
If playing Standard American,
16+ HCP, 5+ Hearts and 4+ Spades (Hearts longer), reverse suit is
above opener's first bid but below responder's bid.
If playing 2/1 system, strength
is dependent on partnership agreement |
Full
Splinter jump rebids by opener show 4+ trump
support in responder's suit, shortage (singleton or void) in the bid suit, and
18+ distributional points:
| Bid |
Meaning |
|
1C - 1D;
3H/S |
4+ Diamonds, 18+ distributional points, singleton
or void in Hearts/Spades; note the splinter suit is always above
responder's suit (2H/S would be a Strong Jump Shift) |
|
1C/D - 1H;
3S |
4+ Hearts, 18+ distributional points, singleton
or void in Spades; note the splinter suit is always above
responder's suit (2S would be a Strong Jump Shift) |
|
1D - 1H/S;
4C |
4+ Hearts/Spades, 18+ distributional points,
singleton or void in Clubs; note opener's 4 level jump rebids are
game-forcing splinters (2C is non-forcing, 3C is a Strong Jump Shift) |
|
1C/D - 1S;
4H |
4+ Spades, 18+ distributional points, singleton
or void in Hearts; note the splinter suit is always above responder's suit
(2H would be a Reverse, 3H is played as a Mini-Splinter by some - see below;
others may choose to play 3H as a Full Splinter) |
|
1S - 1N;
4C/D/H |
5+ Spades, 18+ distributional points, singleton
or void in lower suit; opener makes a rare "auto splinter" |
Mini Splinter 3 level jump rebids by opener
show 4+ trump support in responder's suit, shortage (singleton or void) in the
bid suit, and 16+ distributional points. By definition, opener's Mini
Splinter suit must be beneath responder's suit, allowing responder
to signoff in 3H/S with a minimum hand (6-8 bad points):
| Bid |
Meaning |
|
1C - 1S;
3D |
4+ Spades, 16+ distributional points, singleton
or void in Diamonds, inviting game; note Mini-Splinter suit is always
below responder's suit (2D would be a Reverse) |
|
1D - 1S;
3H |
4+ Spades, 16+ distributional points, singleton
or void in Hearts, inviting game; note Mini-Splinter suit is always
below responder's suit (2H would be a Reverse) |
|
1C - 1H;
3D |
4+ Hearts, 16+ distributional points, singleton
or void in Diamonds, inviting game; note Mini-Splinter suit is always
below responder's suit (2D would be a Reverse) |
|
1D - 1S;
3H |
4+ Spades, 16+ distributional points, singleton
or void in Hearts, inviting game; note Mini-Splinter suit is always
below responder's suit (2H would be a Reverse) |
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.
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