Forsvar mot 1 i
farge:
Takeout Doubles
Direct double of one-of-a-suit opening is takeout double. This shows at
least a mimimum opening hand with 3-4 cards support
for each of the unbid suits, or very strong hand with
16HCP or above.
RESPONSE
RESPONSES IN COMPETITION
o
Pass: Allow doubler to rescue himself, or
o
make normal response.
o
New Suit: 6-9 HCP, or
o
Double: Penalty.
o
Normal response, or
o
Pass.
REBIDS BY TAKEOUT DOUBLER
Weak Jump Overcalls
Any overcall that jumps one or more levels is always considered weak. It
describes a hand with no more than 10 points, at least a six card suit, and
very little defensive strength. Count the playing tricks in your hand and bid
by the following table:
Vulnerability Overbid by
Against 2 tricks
None or Both 3
tricks
For 3-5 tricks
Responses
The most common response to a weak jump overcall is to pass. You know
your partner has already overbid by a number of tricks based on the
vulnerability. Having a good fit and some strength can make bidding worthwhile.
Any raise of partner's suit should be to obstruct the opponents bidding
or to sacrifice
Naming a new suit is a natural bid and not forcing on your partner. This
bid can also be used for lead direction.
A cue bid is a game or slam try and is forcing for one round on partner.
If he has a minimal hand he rebids his suit at the
lowest level. A better hand allows the opener the freedom to make any bid he
chooses.
Unusual NT overcall
2NT Over 1 of a suit shows either a weak or a strong 2-suiter, forcing.
RESPONSES
This convention is used when your opponents open on the 1-level (not 1NT).
2NT: Two lowest unbidden suits.
3C: Highest + Lowest unbidden suit.
3D: Two highest unbidden suits.
Length should be
5-5.
CUE-BID K.A.T.
By Kenneth Konstam and L. Tarlo (Konstam And Tarlo).
(*) Named this way after the initials of his creators.
Cue-bid K.A.T. convention is used in order to enter into the bidding over an opening bid at 1 level made by an opponent, giving same time to partner indications enough accurately about the force and the shape of the hand. Proceeding from this convention, a direct cue-bid in the opponent's suit can be made with a weaker hand than usual and it is forcing only for one round, except the case when in the next round of bidding the cue-bid is repeated, showing this way enough force for making a game with minimum help from partner.
Example: 1)
E
S
W N
1H 2H (a) pass 2S (b)
pass 3H (c) etc.
Explanations: a)
forcing for one round; b) partner is obliged to show his best suit; c)
game-force, partner is obliged to keep the bidding open until a game is reached
or a penalty double is made against the opponents.
Relying on this principle, the overcalls within the framework of K.A.T. convention are made this way:
10-12 hcp - Take-out double with a good support in the unbid major(s).
Example: 2)
SOUTH
S- A J 9
5
E
S W
N
H- K Q J 10
3
1D dbl
pass 2C
D- 8
4 pass
2H etc.
C- 7 5
13-17 hcp - Cue-bid K.A.T.
with a good own suit and good support for the unbid
major(s).
Forcing only for one round.
Example: 3)
SOUTH
S- Q J 9
5
E
S
W N
H- 7
3
1H 2H
pass 2S
D- A K J 8
3
pass 3S etc.
C- K 7
15-17 hcp - 1NT, balanced shape, two stoppers in the suit of the opponents and probably short in one major.
Example: 4)
SOUTH
S- A Q
7
E
S W
H-
D- A Q J 4
C- Q J 5
18+ hcp - Cue-bid K.A.T. followed in the second
round of bidding by a repeated cue-bid with an unbalanced hand or 2NT with a balanced hand.
These two rebids - first being game-force and second
being strong invitational - has to
be made only with hands that assures making the final contract even when it
happens
that partner has a very weak hand.
Example: 5)
SOUTH
S- A K
5
E
S
W N
H- A K Q 9
7
1D 2D
pass 2S
D- 4 2
pass
3D (a) etc.
C- K Q 3
Example: 6)
SOUTH
S- A Q 7
4
E
S
W N
H- K 10
6
1D 2D
pass 2H
D- A Q J pass
2NT (b) etc.
C- Q J 9
Explanations: a) repeated cue-bid, game-force; partner will bid further on, repeating the spade suit if it is a 5-card suit or a second 4-card suit; b) game-invitation; with any useful values partner will bid the most attractive game contract.
It is to be noticed that for overcalling with a cue-bid K.A.T. over an 1S opening bid of an opponent, the hand should be a little stronger because there is the danger of the bidding growing up fast to a higher level. Conversely, over an 1C opening (normal opening, not strong) the cue-bid K.A.T. can be a little lighter because there are good chances the bidding will stop at a lower level.
Within the
framework of this convention, the suit overcalls at level 1 show a weak hand
with an acceptable suit, while the jump overcalls show a strong 1-suiter hand, too strong for a take-out double.
K.A.T. convention is highly appreciated in
Gardener Notrump Overcall
A 1NT overcall may be either:
* a strong, natural NT overcall with 16-18 points, or
* a weak hand with a long suit
Advancer bids 2C to inquire which, and overcaller rebids 2NT
with the strong no trump version.
17 Hcp + Undefined ./ 19 Hcp
+ NT hand.
I have used this one before and can only say good things about it. The down
thing is that you can't bid 1NT with 15-18 Hcp.
You have to double. But hey, you cant get everything
in life. The answers on 1NT is:
2C : 0-7 Hcp.
2D : 8-12 Hcp. Game forcing.
2H : 8 Hcp +. 5+heart suit.
2S : 8 Hcp +. 5+Spade suit.
2NT: 13 Hcp +
3C : 8 Hcp +
3D : 8 Hcp +
3H : 5-7 Hcp. 5+heart suit.
3S : 5-7 Hcp. 5+Spades suit.
3NT: 8-12 Hcp. At least 5-5 in minors.
4H : Not to many honors, but
very long suit.
4S : Not to many honors, but
very long suit.
Further bids:
1NT - 2C
2D: Ask partner to bid his best major.
With 6/7 Hcp. he can jump to the 3-level.
1NT - 2NT
Now you can use 3 club as Baron. This is a conventions where you bid you 4 card
suit as low as possible.
When you are going to answer on 1NT you bid your suit
even if your opponents has open
in that suit. The reason is that even if they has shown a 4 card suit in spade
you still can have game in that suit. Many laugh about this, but I can
promise you that it works. (TheOne)
Michaels Cue-Bid
Strength should be about 7-11 HCP, but you can of course agree to other pointranges.
RESPONSES
Cue Raises
In competitive sequences, responder cuebids an opponent's bid to show a limit raise or better in opener's major. Also used on defense. A jump raise in competition is therefore preemptive.
example
1H - (2C) - 3C =
show heart support and at least invitational.
3H = Pre-empt.
I prefer to use it after our side overcalls. Cuebids of opponent's suit now show a good raise or GF.
example
(1H) - 1S - (Pass/1NT/2C/2D) - 2H = Good raise in spade OR GF.
Herbert
Herbert is used after a take out double at the 1-level. If responder bid the suit above, it show 0-5/6 HCP. He don't promise any card in the suit. All other bids show a positive hand with at least 6 HCP+
Example:
(1D) - Double - (Pass) - 1H = Herbert. 0-6 HCP.
Frosvar mot 1 NT:
Astro
Named for its
American creators Allinger, Stern and Rosler, Astro is a defensive
convention for use against an opponent's 1NT
opening.
Over an enemy 1NT,
2C: Hearts and a minor, 12+ points
2D: Spades and another suit, 12+ points
Double and all other overcalls are natural.
Advancer's rebids to 2C are:
Pass: Long club suit, signoff
2D: An artificial relay denying 3 cards in the anchor suit (hearts)
2H: Signoff
2S: Long spade suit, signoff
2NT: 10+ points, one-round force, asking overcaller to bid his second suit
3H: Invitational
Advancer's rebids to 2D are:
Pass: Long diamond suit, signoff
2H: An artificial relay denying 3 cards in the anchor suit (spades)
2S: Signoff
2NT: 10+ points, signoff, asking overcaller
to bid his second suit
3C: Long club suit, signoff
3S: Invitational
If advancer gives the relay response (2D to 2C and 2H to 2D), overcaller's rebids are:
Pass: The relay response happened to be overcaller's
second suit
Two of the anchor suit: A good five-card suit or better. Opener should bid his
good
anchor suit first before showing a good second suit.
Cheapest second suit: A good five-card suit or better
If overcaller rebids two of
the anchor suit, advancer may rebid 2NT to ask for his second suit.
Pinpoint Astro
Pinpoint Astro uses the following overcalls of 1NT:
2C: Clubs and hearts
2D: Diamonds and hearts
2H: Hearts and spades
2S: Spades and a minor
Brozel
A defensive
convention for use against an opponent's 1NT. All
two-level overcalls show two suits, while Double shows all one-suited hands. As
with other NT defensive conventions that give up the natural penalty double, Brozel is best used against a strong 1NT.
The structure is:
X: One-suited hand; a relay to 2C.
2C: Clubs and hearts
2D: Diamonds and hearts
2H: Hearts and spades
2S: Spades and a minor
2NT: Clubs and diamonds
3C/3D/3H/3S: Takeout for the unbid suits, with a
stiff or void in the bid suit.
After
(1NT) - X - (P) - 2C
Overcaller passes with clubs or bids his suit. If
responder has an excellent suit of his own, he may
ignore the relay request and bid it at the two-level.
After
(1NT) - 2C/2D/2H
Advancer is asked to either pass or correct to the second suit.
After
(1NT) - 2S
Advancer can ask for partner's minor by bidding 2NT.
Brozel applies in both direct and balancing seat.
Cappelletti (Mizrock)
Cappelletti defense convention against 1NT opening.
(1NT)-?
Doubl: Take out. At least as strong as the NT opener.
2C: Undefined long suit. Request partner to bid 2D if he don't have his own
good suit.
2D: Both major suits.
2H: 5+heart and a side suit in minor. With a good
major suit suit in you may be better off not showing
your your side suit. It is often better to play 5-1
at the 2-level than 4-3 at the 3-level..
2S: 5 spade and a side suit in minor. With a good major suit suit in you may be better off not showing your your side suit.
2NT: Both minor suits.
(1NT)-2C-?
Pass: A lot of clubs and little points.
2D: Request partner to show his side suit. Max 12 HCP.
2H/2S: Own suit. Ca. 8-12 HCP.
2NT: forcing. At least 12 HCP+
Crash
This is a defense convention against opponents 1NT opening.
X = 2 suits of
the same color (reds or blacks)
2C = 2 suits of the same rank (majors or minors)
2D = 2 suits of the same shape (D and S or C and H)
2M or 3m = natural
Different variations are possible. Note that this method is now illegal under
the revised ACBL general convention chart.
DONT
Dbl: Undefined onesuiter. Shows some strength since partner can
pass.
2C : Clubs + another suit.
2D : Diamonds + a majorsuit.
2H : Hearts + Spades.
2S : Spadesuit. Has not enough strength to
double.
Woodgroves Commentaries. I don't like this system,
but if my partner sticks a gun to my head, I play it with this changes:
2C : Clubs + a majorsuit (4 card suit).
2D : Diamonds + majorfarge (4 card suit).
2NT: Both minor.
Since it often is better to play 5-2 in a major suit instead of 4-3 with a minor suit, should the minor suit be at least 5 card. With a good 5 card major suit, you should double if you have some strength, even if you have a 4/5 card minorsuit.
Landy
Devised by
expert Alvin Landy, this convention stipulates that a
2C overcall of 1NT shows at least
4-4 in the majors and 12+ points. All other overcalls of 1NT
are natural, and Landy applies in both direct and
balancing seat.
The responses to 2C are:
Pass: Long, strong clubs with no interest in the majors
2D: Long, strong diamonds with no interest in the majors
2H/2S: Signoff, although overcall is allowed to bid again.
2NT: 12+ points, one-round force. Partner is asked to
bid a five-card major if he has one, or 3C/3D
to show the respective minor-suit stopper with 4-4 in the majors.
3H/3S: Invitational
Ripstra defense to 1NT opening
2C = major suit
takeout, longer clubs than diamonds
2D = major suit takeout, longer diamonds than clubs
2H/2S = natural
X = penalty
With equal minor suit lengths, bid 2C.
Trash
Defense system after opps 1NT opening
Trash (TRAnsfer or SHape)
allows you to describe all one or two suited hands usually at the two level, to
allow either partner to show extra strength, and retains a penalty double by
either partner. I learned the system from a local expert (Tampa Florida) who
claims Trash originated from Harold Feldheim. The
system doesn't seem to appear in any of the standard references such as Kearse's. (Ron Klinger's "Bridge Conventions, Defenses and Countermeasures" does describe a similar
but hideously complicated system.) Trash can also be played after 2NT, over either strong or weak notrumps.
After 1NT:
dbl - for penalty
2C - transfer to diamonds, or 10 cards in hearts and spades
2D - transfer to hearts, or 10 cards in spades and clubs
2H - transfer to spades, or 10 cards in clubs and diamonds
2NT - transfer to clubs, or 10 cards in diamonds and
hearts
After advancer (the overcaller's partner) accepts the
transfer:
pass - weak one-suited hand
next suit - weak two-suited hand
raise - invitational one-suited hand
jump shift - invitational two-suited hand
(Note: no hand should be too weak; this is an overcall after all!)
2S - 10 cards in clubs and hearts, or 10 cards in diamonds and spades
Advancer bids 2NT to find out which hand; with the
round suits (clubs and hearts) you will rebid 3C.
With the pointy suits (diamonds and spades) you will rebid
3D.
With very strong hands you can make the Trash bid one level higher. Or if
advancer is very strong he can accept the transfer by bidding one level higher,
or by refusing to accept the transfer (e.g., 1NT - 2C
- P - 2H or 2S or 2NT or 3C). If you find requiring
10 cards for the shape bid is too restrictive, you can agree instead that a
shape bid shows at least 9 cards in the two suits.
I like Trash because the regular structure reduces memory lapses, because both
partners can penalty double, because I can show any one or two suited hand, and
because both overcaller and advancer can show
different strength ranges.
Besides, it's fun to be able to claim "We play Trash overcalls!"
Woolsey
by Kit Woolsey
A defense convention against a strong 1NT
opening.
X = a mystery 4-card major, and a mystery 5+ card minor (after you play this
for a while, you can use the Tunafish variation:
you also double with a decent 1-suiter in one of the
minors)
Over this,
2C says: pass if your minor is clubs, correct if your minor is diamonds
2D asks doubler to bid his major
2M is natural
2C = both majors (with equal length in the majors,
advancer can bid 2D to ask overcaller to pick)
2D = a 1-suiter in one of the majors
2M = at least five cards in that major, and a side minor suit
2N = minors
3m = natural
Woolsey makes it much easier to find your best
combined fit. Against that you sometimes end up at the 3-level, and if the
opponents bid over the double, it may be hard to compete, since doubler's suits
are not known.
Etter
sperreåpninger:
Bekkevold
(Made by Thomas Bekkevold and Tor Ivar Bang)
This convention looks like Lebensohl, but in stead 3D asks for 3H.
Here are some
examples:
3C - x - pass - 3D= Bekkevold
3H= invitational with hearts
3S= invitational with spades
3NT= To play with club stopper.
Further after 3C
- x - pass - 3D
pass - 3H - pass - ?
pass: Weak with hearts
3S: Weak with spades
3NT: To play without a club stopper.
4C: Slam invitational with both major suits.
4D,4H,4S: Slaminvitational.
Some other typical Bekkevold position:
3C - pass - pass - x
pass - 3D= Bekkevold
1C - pass - 3C - x
pass - 3D= Bekkevold
2NT - pass - 3C - x
pass - 3D= Bekkevold
Anteater Convention
This is a defense convention against weak 2 in heart/spade:
2 H / 2S -
?
Cue: Asking for a stopper.
4C: Strong two suit hand with club and the opposite major suit.
4D: Strong two suit hand with diamond and the opposite major suit.
4NT: Strong two suit hand with both minor suits.
Scrambling 2NT
The scrambling 2NT bid is used after partner makes a takeout double at the
two level, and you hold two four
card suits.
E.g.
(1S)-p-(2S)-x; p- ??? and you hold:
S: Kxx/ H: Qxxx/ D: Jxxx/ C: xx.
If you bid hearts, you could wind up in a 4-3 fit (and the same with bidding
diamonds).
Why guess? If you bid 2NT as a scramble, partner can
bid his four card suits up the line.
With S: xx/ H: Kxxx/ D: AKx/ C: QJxx , partner bids 3C
over which you bid 3D to deny holding four clubs and then partner bids 3H to
show that suit.
Why play this convention?
1. First, you and your partner may make more aggressive doubles knowing
that you can find your 4-4 fits safely.
2. Second, if partner does not go thru Scrambling 2NT,
then the doubler will know that the suit is a five
card or longer suit.
3. Third, what else is 2NT supposed to mean?
Natural? Why not just pass their doubled bid then?
Flannery Defense
Flannery is a 2D opening bid which shows 5 hearts and 4 spades.
Overcaller defends as follows:
Multi-Fryer
by Bill
Treble, Winnipeg, Man.
Nowadays, a
number of topflight partnerships play a "multi" two-diamond opening,
showing a weak two-bid in one major or the other. Many defenses
to this opening have been suggested, but none seems to have gained universal
acceptance. An effective defense should exploit the
fact that, while the opponents don't know what opener's major is, neither does
his partner. My suggestion:
Directly over the opening two-diamond, suit overcalls are natural. Jump
overcalls are intermediate, promising a long, strong suit with opening-bid
values or slightly better. Two notrump shows 16-18 in
a
balanced hand, usually no four-card major. Three notrump
is to play, and may be semi-gambling.
The direct double is strong takeout of one major or the other, 16+ HCP.
For example,
(a), S- KJTx H- x D- AQJx
C- KQxx
(b), S- xx H- AKJx D- KJx C- AJxx
Doubler, at his next turn, shows which major he is taking out. After,
SOUTH WEST NORTH EAST
2D Double 2H
Pass
Pass ?
doubler would bid two spades with (a). This cannot be great spade length, since
he would have overcalled. Therefore, this shows takeout of hearts. With (b),
opener could double again to show takeout of spades, i.e., a desire to penalize
two hearts. If doubler's partner had a good heart holding, he would have
doubled two hearts - he knows he is facing a strong hand because of the initial
double.
With takeout hands too weak for the direct double, such as,
(c), S- KJxx H- x D- AQxxx
C- KTx
(d), S- xx H- AJ9x D- KQx C- Axxx
you must pass the two-diamond opening. The, after,
SOUTH WEST NORTH EAST
2D Pass 2H
Pass
Pass ?
you bid two spades with (c), to show a minimum takeout of hearts. You can
double with (d), to show a minimum takeout of spades. Partner, knowing you have
fewer values than if you had doubled directly, will be well placed to select
the final contract.
The opponents might make the auction awkward fot you
if responder preempts in a major (he has to have both
to do this).
SOUTH WEST NORTH EAST
2D Double 4H
?
Here, a double by advancer (doubler's partner) is takeout-oriented, with some
values, enabling the original doubler to pass if he has the opponent's suit. If
advancer passes, doubler's repeated double is for
takeout.