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OVER 2nd
HAND OVERCALL
* NT
Responses
1M
1m
?
- 1NT
: 07-10 HCP
- 2NT
: 11-12 HCP
- 3NT
: 13-15 HCP
2§
1¨
?
- 2NT
: 11-12 HCP
- 3NT
: 13-15 HCP
* New Suit
Responses
After minor
opening, over overcall, jump with the new
suit is natural bid;
shows length
and approx. 6 HCP
Normally,
jump to two level with six card suit and
jump to three level with seven card suit
1©
1§
?
- 1ª
: 5+ HCP, at least five cards, forcing
one round
- 2¨
: 11+ HCP, at least four cards, forcing
one round
- 2ª
: approx. 6 HCP, six cards, non-forcing
- 3¨
: approx. 6 HCP, seven cards,
non-forcing
- 3ª
: approx. 6 HCP, seven cards, non-forcing
1ª
1¨
?
- 2§
: 11+ HCP, at least four cards, forcing
one round
- 2©
: 11+ HCP, at least five cards suit,
forcing one round
- 3§
: approx. 6 HCP, seven cards, non-forcing
- 3©
: approx. 6 HCP, seven cards, non-forcing
* Minor
Supports
1ª
1§
?
- 2§
: (6-10) HCP, at least four card support
- 3§
: preemptive, with five card support
- 2ª
: limit raise or more, at least four card
support
- 3ª
: 11+ HCP, singleton spade with good
support
- 4§
: preemptive, with very long support and
few points
* Major
Supports
-
After 1ª overcall
After 1©
opening, over 1ªovercall,
jump with the new suit is artificial bid
and shows
support in opening major
1ª
1©
?
- 2©
: 6-10 fit points, at least four card
support
- 2ª
: limit raise or more at least three card
support
- 3§
: constructive raise, 5-6 HCP; four card
support, unbalanced hand
- 3¨
: constructive raise
- 3©
: preemptive, with four card support
- 3ª
: splinter, 10+ HCP, four card support
- 4§
: splinter, 10+ HCP, four card support
- 4¨
: splinter, 10+ HCP, four card support
- 4©
: semipreemptive
Rules
- With three
card support and balanced hand, possible
double and then raise
- Over
splinter, first step ask min/max.
Responder must return trump with minimum;
ask 4NT or
give
number of key cards, start 5§,
with maximum.
1ª
1©
2ª
?
Pass
- 3©
: to play
- 4©
: to play
- 3m
: game or slam try
- 2NT
: game invitation with balanced hand
- 3NT
: to play
Rules
If opener
bid new suit
- with
minimum return to 3©,
with suitable hand return to 4©
- with good
balanced hand and stopper, bid 3NT
- with
maximum shows control.
- After
two level major overcall
2©
1ª
?
- 2ª
: 6-10 fit points, three or four card
support
- 3ª
: constructive raise
- 4ª
: semi-preemptive
- 3©
: limit raise or more
- 3m
: natural and forcing one round
- 4X
: shows shortness with 10+ HCP
Rules
After two
level overcall, if no level for both,
constructive raise more important than
preemptive raise
2ª
1©
?
- 3©
: less than limit
- 4©
: to play
- 3ª
: short in spade or strong balanced hand
with support
- 3m
: natural and forcing one round
- 4m
: shows shortness with 10+ HCP
2ª
1©
3ª
?
Pass
- 3NT
: asking clarification
Rules
If opener
asking clarification with 3NT
- 4§
shows 10+ HCP with short spade, then
first step asking min/max
- 4¨
shows maximum balanced hand
- 4©
shows minimum balanced hand
- After 2
level minor overcall
2§
1ª
?
- 2ª
: 6-10 fit points, with three or four
card support
- 3ª
: preemptive with four card support
- 4ª
: semipreemptive
- 3§
: limit raise or more
- 2¨
: natural and forcing one round
- 3¨
: constructive raise
- 3©
: constructive raise
- 4X
: shows shortness with 10+ HCP
2¨
1ª
?
- 2©
: natural and forcing one round
- 3§
: natural and forcing one round
- 3¨
: limit raise or more
- 3©
: constructive raise
- 4X
: shows shortness with 10+ HCP
2§
1©
?
- 2¨
: natural and forcing one round
- 2ª
: natural and forcing one round
- 3§
: limit raise or more
- 3¨
: constructive raise
- 3ª
: shows shortness with 10+ HCP
- 4X
: shows shortness with 10+ HCP
OVER 4th
HAND OVERCALL
* After one level
responses
Pass
1¨
1ª
?
2©
- X
: support double
- 2ª
: four spades
- 2NT
: Good/Bad 2NT
- 3§
: at least (5-4), good hand
- 3¨
: 6+ diamonds, good hand
- 3©
: ask stopper or strong hand with four
spades and heart control
- 3ª
: four spades, (17-18) dummy points
- 3NT
: to play
- 4§
: at least (5-5) and very strong hand
- 4¨
: good diamonds with four spades
- 4©
: splinter
- 4ª
: four spades, strong balanced or
semi-balanced hand, no heart control
Pass
1¨
1©
?
2ª
- X
: support double
- 2NT
: Good/Bad 2NT
- 3§
: at least (5-4), good hand
- 3¨
: 6+ diamonds, good hand
- 3©
: four hearts, unbalanced hand
- 3ª
: ask stopper or strong hand with four
hearts and spade control
- 3NT
: to play
- 4§
: at least (5-5) and very strong hand
- 4¨
: good diamonds with four hearts
- 4©
: four hearts, strong balanced or
semi-balanced hand, no spade control
Pass
1¨
1©
?
3ª
- X
: strong hand without stopper
- 3NT
: to play
- 4§
: at least (5-5) with good hand
- 4¨
: good diamonds, good hand
- 4©
: four hearts, good hand
Pass
1§
1¨
?
2©
- X
: strong hand
- 2ª
: at least (4-5) distribution, with good
hand
- 2NT
: Good/Bad 2NT
- 3§
: 6+ clubs, good hand
- 3¨
: five clubs and four diamonds
- 3©
: ask stopper or strong hand with four
diamonds
- 3ª
: splinter
- 3NT
: to play
- 4§
: very long clubs, good hand
- 4¨
: RKCB for diamond
- 4©
: splinter, probably void heart
Pass
1§
1¨
?
2ª
- X
: strong hand
- 2NT
: Good/Bad 2NT
- 3§
: 6+ clubs, good hand
- 3¨
: five clubs and four diamonds
- 3©
: at least (4-5) distribution, with good
hand
- 3ª
: ask stopper or strong hand with four
diamonds
- 3NT
: to play
- 4§
: very long clubs, good hand
- 4¨
: RKCB for diamond
- 4©
: splinter, with spade control
- 4ª
: splinter, probably void spade
Pass
1¨
1ª
?
3§
- X
: strong hand
- 3¨
: good 6+ diamonds
- 3©
: at least (4-5) distribution, with good
hand
- 3ª
: four spades, unbalanced hand
- 3NT
: to play
- 4§
: four spades, good hand with club
control
- 4¨
: very long diamonds, good hand
- 4©
: splinter, with club control
- 4ª
: four spades, strong balanced or
semi-balanced hand, no club control
Pass
1§
1ª
?
3¨
- X
: strong hand
- 3©
: at least (4-5) distribution, with good
hand
- 3ª
: four spades, unbalanced hand
- 3NT
: to play
- 4§
: 6+ clubs, good hand
- 4¨
: four spades, good hand with
diamond control
- 4©
: splinter, with diamond control
- 4ª
: four spades, strong balanced or
semi-balanced hand, no diamond control
Pass
1¨
1ª
?
3©
- X
: strong hand
- 3ª
: four spades, unbalanced hand
- 3NT
: to play
- 4§
: at least (5-5) with good hand
- 4¨
: 6+ diamonds, good hand
- 4©
: four spades, good hand with
heart control
- 4ª
: four spades, strong balanced or
semi-balanced hand, no heart control
Pass
2ª
1¨
1©
Pass
?
1ª
- 2NT
: Good/Bad 2NT
- 3§
: game-invitation with five clubs
- 3¨
: 4+ diamonds, approx. 10 HCP
- 3©
: game-invitation with good six hearts
- 3ª
: game-forcing with with five diamonds
- 3NT
: to play
- X
: competitive double
after opener
rebid, doubler bids
- Pass, chooses the
contract
- turn opener first
suit at three level is non-forcing
- return 3© is
game-forcing with good 6+ hearts
- cue-bid, asking
stopper and game-forcing
- new suit is
game-forcing
Pass
2©
1§
1ª
Pass
?
X
- 2ª
: competition with 6 or good 5 spades
- 2NT
: Good/Bad 2NT
- 3§
: 4+ clubs, approx. 10 HCP
- 3¨
: game-invitation with five diamonds
- 3©
: game-forcing with with five clubs
- 3ª
: game invitation with good 6+ spades
- 3NT
: to play
- X
: competitive double
after opener
rebid, doubler bids
- Pass, chooses the
contract
- turn opener first
suit at three level is non-forcing
- return 3ª is
game-forcing with good 6+ spades
- cue-bid, asking
stopper and game-forcing
- New suit is
game-forcing
* After two level
responses, over left hand overcall
1ª
1¨
2§
?
Pass
- 2¨
: 5+ diamonds, minimum
- 2©
: four hearts, if no five diamonds can be
minimum, with five diamonds must be
reverse hand
- 2ª
: strong hand
- 2NT
: minimum hand with stopper
- 3§
: minimum hand, non-forcing
- 3M
: splinter
- 3NT
: to play, not very strong hand
1©
1§
2¨
?
Pass
- 2©
: strong hand
- 2ª
: four spades, can be minimum or reverse
hand
- 2NT
: minimum hand with stopper
- 3§
: minimum hand with good suit
- 3¨
: minimum hand, non-forcing
- 3M
: splinter
- 3NT
: to play, not very strong hand
1ª
1¨
2©
?
Pass
- 2ª
: strong hand
- 2NT
: minimum hand with stopper
- 3§
: at least (5-4)
- 3¨
: minimum hand with good suit
- 3©
: minimum hand, non-forcing
- 3ª
: splinter
- 3NT
: to play
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