| Hi Everyone. This document includes the original e-mail from jimm and links to the new documents he has provided. Enjoy!
|
I requested volunteers to help correct any flaws in the text
portion of the
OKB 2/1 card system notes. I did not receive any offers, so took
the task
on myself.
Attached are 4 documents:
2over1.ok - the original OKB 2/1 card
new2over1.ok - Discussed below.
2ovr1.ok is the ACBL equivalent to the new2over1.ok - you must
be in OKB's
OKwin to view this card.
2over1.txt are the system notes also discussed below.
I am telling you this so that you know this is not an e-mail
virus.
Card changes.
-------------
I did 2 things to the card. I may be in the minority, but I
found the card
crowded and difficult to find things. I put plenty of white
space, but kept
the card to 2 printed pages. I looked at the card online, and
for me, most
of the text fits in the allotted space I have allocated for
convention
cards. Others still may not be able to see most of the text and
have a need
to scroll left and right versus just up or down. Please look at
these cards
in OKB. It is the best way to view the usefulness.
I changed 1 treatment. I made the Inverted minor OFF over ANY
interference.
I doubt that most either did not know it was written that way nor
paid
attention to it. No other changes were made to the card. It was
meant to
be a sound basic 2/1 card most could just announce and not need
to scan
every time.
System Note changes.
--------------------
The systems notes were changed to reflect the way the card was
written. If
you read the card from left to right, top to bottom, you will
find the notes
in the same order. I corrected many errors and added information
where none
existed. I tried to use the description already there when ever
possible.
The notes are there to help with a quick refresher of the
convention or
treatment of the convention. I also added several Alternative
ways to play
a specific convention.
I am looking for feedback on the card with the white space, if
you like the
ACBL type card and please critique the Notes. I will be looking
to complete
this activity within the next week+ - all activity to be finished
by 30
June. If you think that a specific convention or treatment of a
convention
needs to be added or replace what is currently there, this is the
time to
state your case to see if you get support. If you want something
added or
changed, you will also need to write up a text description to be
added to
the system notes. If you do not include the text description, it
will not
be added (my opinion). I have spent many hours and do not need
to write up
any more descriptions.
Please remember that this is not a MAX Hardy or Michael Lawrence
card. It
is a basic 2/1 card to get you up and playing with little
effort. Adding
too much or making it too specific to one side or the other will
make it
less useful for the masses who use it today.
I thank everyone in advance for your responses,
Jimm
Title: 2 Over 1 Summary
Keywords: 2over1,2/1,sayc,convention
THE OKBRIDGE TWO-OVER-ONE SUMMARY
Copyright OKbridge 1999
All Rights Reserved
This description of the OKbridge 2/1 system assumes that
you are already familiar with the Standard American Yellow Card (SAYC).
If not, you can request a complete description of the SAYC by sending
email to help@okbridge.com . The OKbridge 2 over 1 system is
recommended for intermediate players and up.
CONTENTS
The information found in this text follows the text version of the
card from the top to the bottom. Some examples will be included if
necessary to clarify a bid or convention.
THE 2/1 STRUCTURE (General Agreements)
=========================================================================
There are lots of variations to 2/1, and the OKbridge card should
not be considered the best or absolute. In all 2/1 systems,
however, the general principle is the same- any new suit bid by
responder at the two-level is a game-force. For example:
1S : 2C Gameforcing. Neither player can pass until a game of
some sort has been bid. In the OKbridge system, there are
no exceptions.
1D : 2C This is one bid where some players differ. Some play that
if the suit is bid again (3Cs), it can be passed. Play this
as a game force unless you have agreed to another treatment.
1C : 2D/H/S This is a strong jump shift and is, of course, gameforcing.
1N : 2N Not a gameforce. The two-level response must be in a
new suit. This is played as a C bust or 4441 game force.
1S : 2S Not a gameforce. Again, the two-level response must be in
a new suit.
Opener's Rebids to responders 2/1 game forcing bid.
Simple rebid : The catchall bid, does not promise extra
strength or length
Jump rebid : Solid 6-card suit or better interested in Slam
New suit at the 2-level : Natural, at least four cards, any strength
New suit at the 3-level : Splinter in support of responder??
This may not be recognized by all players.
2NT : 12-14 balanced (no 3-card support)
3NT : 18-19 balanced (no 3-card support)
Single raise : At least 3-card support, any strength
2/1 g.f. and strong jump shifts (SJF) are OFF in competition BETWEEN opener
and responder. For example:
1S - 2C - 2D 2D shows 10+ points and is not gameforcing. The
interference is in front of responder.
1S - P - 2C - 2D 2C is still gameforcing. The interference is
behind responder.
1C - 1D - 2H 2H is a weak jump shift- 6 card suit, 0-6 points.
This is signoff bid and is, of course, NOT
gameforcing.
1C - P - 2H - 3S 2H is a strong jump shift, great 5-card suit or
better, 17-19 points. The partnership is still
in a gameforcing auction (unless they want to
defend 3S-X).
======================================================================
1NT CONVENTIONS
Sys on over X means just that. After the opponents Double, you still
play all conventions as if it was 1N P ??.
JACOBY TRANSFERS and TEXAS TRANSFERS
These two bids work together.
Playing Texas Transfers, jump responses of 4D and 4H to a 1NT or 2NT
opening are respective transfers to 4H and 4S. Texas transfers are
used when responder wants to be in game but generally has no interest
in slam. For example, bid 4D with K5 AT98543 52 52 in response to a
15-17 1NT. Partner must bid 4H, which you pass. The idea behind this
convention is similar to that behind Jacoby Transfers- it is better for
partner to be declarer rather than dummy since his high cards won't be
exposed to the defenders. Using both transfer conventions, some players
use Jacoby as a slam invite and Texas as a signoff (1 exception).
1NT : 2H!
2S : 4S
would suggest mild slam interest, while
1NT : 4H!
4S
is a signoff.
1NT : 2H!
2S : 4N
is an ivitation to 6Hs or 6NT. It is NOT asking for Aces. You
may answer Aces, but you will confuse your partner between
answering Aces and signing off at the 5 level.
1NT : 4H!
4S : 4NT
is asking for Aces with Ss set as trump. See below for RKCB
responses. This is the one exception to signing off in game
with Texas Transfers.
================== Alternate Method ===============================
How do Texas transfers work in competition? In Modern Bridge
Conventions, Bill Root and Richard Pavlicek recommend playing them
through 3C, i.e.
1NT (3C) 4D!
is a transfer, while
1NT (3D) 4H
is natural. A simpler (though perhaps less effective) method of
playing Texas Transfers would be to have them off completely in any
competition, a la Jacoby Transfers.
ALERT: Please be aware that unless you discuss it with your partner,
Texas Transfers are OFF over a bid and ON over a Double.
======================================================================
MINOR-SUIT STAYMAN
Minor Suit Stayman is just what its name implies: a device that allows
a partnership to look for a minor-suit fit after an opening bid of 1NT
or 2NT. Presupposing the use of Jacoby Transfers, the 2S response to
1NT is no longer needed and can be used to ask opener to bid a four-
card minor suit. Assuming the partnership is playing a strong no-
trump, the 2S bid shows 9+ points and usually promises at least 4-5 or
5-4 in the minors. Opener's responses to 2S are:
2NT: A minimum hand with no four-card minor
3C : A minimum hand with a four-card club suit
3D : A minimum hand with a four-card diamonds suit
3H : Showing or asking for a heart stopper, depending on agreement
Opener may have a four-card minor but is looking for 3NT
3S : Showing or asking for a spade stopper, depending on agreement
Opener may have a four-card minor but is looking for 3NT
3NT: A maximum hand with no four-card minor
4C : A maximum hand with a four-card club suit
4D : A maximum hand with a four-card diamond suit
The last 2 bids are rare. You must have a maximum with no
wasted values. QJxx and KJxx can be wasted values in the
major suit holdings.
Responder's rebids are:
Pass : Minimum hand
3C : At least a five-card suit; non-forcing
3D : At least a five-card suit; non-forcing over 2NT but forcing
over 3C
3H/3S: Respective splinters
3NT : Signoff
4C : Invitational if partner bid 3C; strong and forcing otherwise
4D : Invitational if partner bid 3D; strong and forcing otherwise
K96 Q3 QT87 AKJ 3 A2 AK532 Q9762
1NT : 2S!
3D : 3S!
4C : 4D
4S : 4NT
5D : 6D
Minor-suit Stayman is off in competition, but still on over a Double.
=====================================================================
1NT : 2NT
is a transfer to 3Cs.
It shows one of 2 hands. The C bust or a 4441 GF+ hand. NT opener
must bid 3Cs.
Responders responses:
Pass : Minimum hand
3D : Stiff D
3H : stiff H
3S : Stiff S
3NT : Stiff C
NT opener can now establish the contract.
================== Alternate Method ===============================
Another method used is to submarine the Stiff so that the opponent
can not make a cheap Double for leading purposes or possible sacrifice.
Responders responses:
Pass : Minimum hand
3D : Stiff H
3H : stiff S
3S : Stiff C
3NT : Stiff D
=====================================================================
LEBENSOHL
Your partner has opened 1N and the next opponent has made a intervening
call or bid showing 1 or more suits. You may have the opportunity to
show 1 of 3 hands: Competitive, Invitational, and Game Forcing.
The problem is that you can not always show Invitational and Game Forcing
bids. You must decide which one is most likely and give up on the other.
You need to discuss this with your partner. There are many variations.
If you can jump to your suit, you can show invitational hands. Not being
able to jump to your suit prevents you from competing effectively. Either
you need to give up on the forcing bid or the invitational bid.
The key to using Lebensohl is knowing if you can jump to your suit.
------------------------------
1: The opponents call is Double? All systems are still on. See 1NT for
any explanations.
1NT (2C/D/H) any suit bid at the 2 level is competitive
2N transfers to 3Cs (you may pass if competitive)
any new suit is natural and forcing if lower
than the opponents suit and invitational if
higher.
any jumps to a new suit is forcing.
1NT (2S) The invitational bid can not be used.
Showing or deniing a stopper using Lebensohl is easy. Slow shows and
Fast denies.
If you relay through 2N first, then either Q-Bid or bid 3NT, you show a
stopper in the opponents suit. If you Q-bid or jump immediately to 3N,
you deny a stopper in their suit.
Q-bidding is stayman no matter if you bid directly or use 2N.
If the opponent show 2 known suits, use the suit which will allow you
to describe your hand the best. If the opponents bid a suit where one
is know and other is currently unknown, bid as if they only had 1 suit.
=====================================================================
CHAPTER 2- MAJOR-SUIT CONVENTIONS
1NT FORCING
As a result of the 2/1 response being a game-force, responder will
often have a 12 (or less) point hand with which he would like to make
a 2/1 bid but cannot; hence the 1NT Forcing convention. The 1NT
response to 1H or 1S shows 6-12 and is a one-round force (since
responder may have 12 points). Responder can not have a 4-card S suit
over 1H.
Opener's rebids are as follows:
Any reverse : 16+, natural, forcing
Simple rebid : 12+, a good 6-card suit, nonforcing
Jump rebid : 19+, natural, forcing
Jump shift in a new suit: 19+, natural, forcing
2NT : 18-19, balanced, nonforcing
If opener's hand does not fit into these categories, he must bid his
longest side suit up the line if possible. In each of the following
cases, opener has bid 1S and heard 1NT forcing:
KQJT9 KJT6 A3 54
Opener must rebid 2H.
KQJT9 KJT A63 54
Opener must rebid 2D. (alertable)
AQJT KJT98 Q6 54
Bid 2Hs. Lesser evil. Some may be 2Cs.
Responder's rebids are as follows. First, the weak (6-9) rebids:
Pass : If opener has rebid 2m, responder should
try to have incredible 4-card support or
better, since the side may be playing in
a 4-2 fit.
New suit at the two-level: A five-card suit, signoff.
Two of opener's major : Responder may only have two-card support.
New suit at the 3-level : A very good 6-card suit, signoff if no jump
Now, the strong (9-12) rebids:
2NT : Balanced, nonforcing
Three of opener's major : Invitational, normally 3-card support
Three of opener's minor : Natural, normally 5-card support
Jump to game : Natural
=====================================================================
JACOBY 2NT
Jumping to 2N shows at least 4 card support and is Game Forcing.
You can also consider it a slam investigation.
1H/S 2N
opener responses are:
any new suit at the 3 level bid shows sortness and does not limit
the strength
rebidding the major shows at least 17+ points and denies shortness
any new suit at the 4 level shows at least 5 cards and does not
limit the strenght
jumping to 4 of the major shows no shortness and is limited to 12-14
points.
bidding 3NT show 15-16 points with no shortness.
================== Alternate Method ===============================
Many play the 4-level bid as a void. Using the above method pinpoints
the hand for partner and can make it easier to bid or avoid a slam.
It is already clard that with 10 cards in 2 suit, you must have a
stiff or void in one of the other suits.
=====================================================================
3NT over 1 of a Major
is very precise bid. It shows either 4333 or 4432 with at most a 3 card
support for partner's suit, and 16-17 points. Partner can bid something
new or 4N as RKCB for the major suit since the point count and distribution
is known and well defined.
====================================================================
REVERSE DRURY
Based on the Drury convention invented by Douglas Drury, Reverse
Drury is an effective way of gauging the strength of partner's third
and fourth seat openers. When partner opens 1H or 1S in third or
fourth seat, 2C by responder shows 9-12 points with at least three
trumps. With a subminimum hand, opener bids 2M, telling responder
to pass. With a hand interested in game, opener rebids a naturally.
A 2D bid can be made on a short suit since it is possible to be 5332.
Thus
Opener Responder
KQJ4 K85 T98 762 A987 A93 K543 82
1S : 2C!
2S! : P
And
Opener Responder
QJT43 A8 KT63 A5 K987 K63 AJ95 32
1S : 2C!
2D! : 3D
4S : P
Special Rebids by Opener:
1) KQJ52 K987 A3 42
2) KQ987 5 AJT32 A9
3) AJ542 8 K9 AQT65
In each case opener has bid 1S and received a 2C response.
In 1), Opener bids 2H to show 4+ hearts in case there is a 4-4 heart
fit. He does not guarantee opening strength. However, 2H is forcing
for one round. Do not bid 2Hs just to find a better fit. It needs
to be made on hands interested in game.
In 2), Opener bids 2D, planning on rebidding 3D. As he is committing
the partnership to the three-level, this does show a full opener.
In 3), Opener bids 3C to show his club suit. Again, since he is
taking the bidding to the three-level, opener does promise a full
opener.
================== Alternate Method ===============================
Some play 2-way reverse Drury. 2Cs shows 3 card support and 2Ds shows
4-card support. Please make sure you and your partner agree to this
change.
=====================================================================
WEAK JUMP SHIFTS (IN COMPETITION ONLY)
A jump shift by responder in competition shows a 6-card suit and 0-6
points. Competition is defind as either a Double or a bid by the
opponent.
For example:
1C - 1D - ?
KQ7432 43 32 T98
Bid 2S.
Opener's rebids are:
Pass : On most hands, since responder only has
0-6 points.
2NT : Game try, forcing. Responder must rebid
his suit to show a minimum.
Simple raise : Purely preemptive.
Double raise of a minor : Invitational.
Any new suit : Natural, nonforcing.
=====================================================================
Minor suit Openings.
Normally only promise 3+ cards in the minor, but at least a 4 card D
suit unless opener is specically 4432.
Responder to 1C will bypass a D suit unless strong enough to force to
game. Opener will rebid 1N if balanced and can have 2 four card majors.
Opener can bid a Major if unbalanced. Responder will either Pass, correct
to a minor or if strong enough can bid the Major suit and force to game.
EX:
1C - 1D! -
1N# - ??
! - will not have a 4-card major unless strong enough to force to game.
# - Can have as many as 2 four card majors and is balanced.
Responses are:
2Cs to play
2Ds to play
2H/Ss game forcing.
2N - D suit, slightly unbalanced and 10-11 (or bad 12) points.
3C - invitational
3D - invitational
--------------------
Over 1m responder also has these bids
1N - 8-10 balanced
2N - 11-12 balanced
3N - 13-15 balanced all of these with no 4-card major
All of these NT bids may contain a D suit.
=====================================================================
INVERTED MINORS
Originally an integral part of the Kaplan-Sheinwold system, Inverted
Minors exchanges the meanings of the simple and double raises of 1C/1D.
For simplicity, the examples and situations described herein will be
based on an opening bid of 1C.
After 1C, a simple raise to 2C is a one-round force, promising at least
ten points and 4+ clubs. A jump raise to 3C is preemptive, showing 5-8
points and at least five clubs (although excellent four-card support is
permissible). Both raises DENY a four-card major.
AT2 J98 AK3 QT98 K93 T32 Q3 AJ654
1C : 2C!
AT2 J98 AK3 QT98 T T32 Q932 KJ654
1C : 3C!
Opener's rebids after partner has bid 2C are:
2D : 14+ points with a four-card diamond suit, forcing
2H : 14+ points with a four-card heart suit, forcing
2S : 14+ points with a four-card spade suit, forcing
2NT: Shows 12-14 with a balanced hand with adequate stoppers
3C : A catchall bid denying the ability to make any other bid.
3NT: 18-19 points with a balanced hand
Responder's rebids to 2D/2H/2S are:
2NT : 10-12 with a balanced hand
3C : A minimum unbalanced hand
3NT : 13-15 with a balanced hand
A raise of opener's second suit: 3+ trumps, invitational
A new suit : Showing or asking for a stopper,
depending on agreement
Inverted minors are off in any competition by the opponents.
====================================================================
Strong Forcing Bid
2Cs is the only bid which is forcing to 2N, 3 of a Major, or 4 of a
minor.
2Ds is a waiting bid, and the cheapest 3-level bid is 2nd negative.
2nd negative is defined as no Aces and no Kings and less than 4 points.
System is on after opener rebids 2N or 3N. 3Cs is staymn because you
had a chance to pass 2N.
Bidding a suit other than 2Ds shows a positive hand and 2 of the top
3 honors.
================== Alternate Method ===============================
Some play 2Ds as waiting, but showing more than a negative hand for
partner and 2Hs as an immediate 2nd Negative.
====================================================================
WEAK 2 BIDS
Generally 5-11 points (can vary in 3rd). It shows an intermediate
hand with a 6 card suit in 4th suit.
2N ask for a feature.
RONF (Raise only Non-Force) by an unpassed hand.
====================================================================
OVERCALLS
8-16 points
Responder:
New suit tends to deny support and is Non-Forcing (NF)
Q=1 round force
Q followed by a new suit is forcing.
If opponent doubles, your bids are preemptive and NF
====================================================================
1NT OVERCALL
All systems are on. See 1N above
====================================================================
DOUBLES
NEGATIVE
This is through 3Ss with emphasis onthe major suits.
RESPONSIVE DOUBLES
The responsive double is a response to partner's takeout double after the
opponents have bid and raised a suit. Sounds complicated? Here it is
in bidding format:
1H - X - 2H - X!
The responsive double is based on the principle that a penalty double
here is usually unrewarding. Therefore double shows scattered values
with at least 6 points and interest in locating a fit. If the
opponents are bidding a minor suit, a responsive double asks partner
to pick a major suit. If the opponents are bidding a major suit, a
responsive double requests partner to choose a minor suit. For
instance, advancer might hold KT43 QJ32 93 JT9 and hear:
1D - X - 2D - ?
He should make a responsive double to ask partner to bid a major.
Note that a double by advancer is ONLY responsive when the opponents
have opened a one-bid and raised it.
================== Alternate Method ===============================
Some players also use the responsive double when partner has made a
simple overcall in a suit.
1D - 1S - 2D - X showing Hs and Cs and scattered values.
OKB 2/1 is not playing this method. Check with your partner if you
want to include this method.
====================================================================
Modern Bridge Conventions by Bill Root and Richard Pavlicek gives an
excellent list of bidding situations in which double is NOT
responsive:
1C - X - 1S - X
RHO has bid a new suit.
1C - 2S - 3C - X
Partner has made a jump overcall.
2H - X - 3H - X
LHO has opened with a preempt.
1D -1NT - 2D - X
Partner has overcalled in no-trumps.
On the OKBridge 2/1 card, responsive doubles are on through 3S.
====================================================================
SUPPORT DOUBLES
Say you are first to speak holding AK4 KJT32 Q93 2. You open 1H and
hear LHO pass. Partner responds 1S (promising a four-card suit),
and RHO butts in with 2C. Now what? Users of the support double are
happy in this situation; they simply double to show a three-card
spade raise. This lets them bid 2S to show a four-card raise. When
was the last time you wanted to make a penalty double in this
auction, anyway?
When the opponents bid and raise a suit, support doubles are also on.
1C - 1H - 1S - 2H
X!
Finally, support doubles also apply when RHO makes a takeout double
rather than a simple overcall. Redouble promises three-card support
while a simple raise shows four-card support. So
1H - P - 1S - X
XX!
Promises 12-14 points with three spades.
********************************************************************
Support Doubles are most often used when you open a minor and partner
bids a Major. If the next person bids, you can Double to show 3 card
support, or Redouble to show the same hand.
********************************************************************
On the OKbridge 2/1 card, support doubles and redoubles are on
through 2H.
====================================================================
BIDS VERSUS THE DOUBLES by the opponents
Jordan 2N over both the Major and minor suit openers shows a limit
raise (appoximately 9-11 points).
1 level bids are forcing as if there were no bouble.
Redouble implies no fit and is 10+ points.
====================================================================
PREEMPTS
The general rule is 2 and 3 depending on if you are vulnerable or not.
A new suit by partner is forcing.
====================================================================
OPPONENTS MAKE A PREEMPT
Double is takeout
Lebensohl is used to show different hands the same way as it was used
over NT interference.
EX:
2x - X - P - 2NT!
2NT is artificial, showing a weak hand and a desire to sign off at the
three-level. The takeout doubler must relay to 3C, which partner can
pass (showing a weak hand with clubs) or bid 3D/3H/3S (all signoffs).
As a result, if responder bids a new suit instead of through 2NT
Lebensohl, he is making an immediate game invitation.
Example :
2H - X - P - ?
T3 T94 AJT32 976 Bid 2NT, and correct to 3D when partner bids 3C.
AQ T94 AJT32 986 Bid 3D, showing a good hand.
Advancer can make a mild game try by doing the following:
2H - X - P - 2NT!
P -3C!- P - 3S
Since advancer could have bid 2S immediately to show a bad hand, and
3S to show a good hand, going through Lebensohl and then bidding 3S
shows a decent hand, about 6-9 points. It does not promise extra
spade length. Partner can bid game with a good hand of his own.
See NT bidding above for the rest of the sequences.
====================================================================
CUEBIDS
Michaels over Majors and minors.
2N by responder over the Major Quebid ask for the minor suit.
Quebid is natural over an artificial bid.
====================================================================
SLAM-BIDDING
RKCB 0314 where the K of trump is considered an Ace. The trump suit
is the last bid suit unless Trumps have been established.
Over 4N
5Cs shows 0 or 3 Aces of the 5 avaialble
5Ds by partner now asks if you have the Q of trump
5Ds shows 1 or 4 Aces of the 5 avaialble
5Hs by partner now asks if you have the Q of trump
5Hs show 2 of the 5 Aces without the Q of trump
5Ss show 2 of the 5 Aces with the Q of trump
================== Alternate Method ===============================
Some play RKCB 1430 style with the implication that it provides
a bit more room to explore for the Q especially with Hs as trump.
====================================================================
SUIT LEADS AND DEFENSIVE SIGNALS
4th best
Xxx
Akx(x...)
standard signals
================== Alternate Method ===============================
The leads and defensive signals is the one area most changed by
agreement.
Other methods include UDCA (Upside Down Count & Attitude);
3rd/5th or 3rd/low leads versus Suit contracts
Attitude versus NT
Foster Echo, and many more
====================================================================
MISCELLANEOUS
FOURTH SUIT FORCING (TO GAME)
When responder is an unpassed hand and rebids the fourth suit in an
uncontested auction, his bid is artificial, shows 12+ points, and is
game-forcing. For example,
1D : 1S
2C : 2H!
2H is artificial and a game-force. Opener's rebids, in order of
priority, are:
2 of responder's major : 3-card support
Any rebid of opener's suits : Natural, waiting
Raise of the fourth suit : Tends to show 4-card support, waiting
2NT : Natural, with a stopper in the fourth suit
FSF does NOT apply in the following situations:
A) 1C : 1D
1H : 1S
While 1S is forcing, it is not a game-force.
B) When responder's first bid is at the two-level, a fourth-suit rebid
is not artificial, since a game-forcing situation has already been
created. For example:
1S : 2C
2D : 2H
C) When responder jump rebids the fourth suit. For example:
1H : 1S
2C : 3D
The jump rebid shows invitational values and at least 5-5 . With
a game-going two-suiter, responder could just do this:
1H : 1S
2C : 2D!
2x : 3D
====================================================================
NEW MINOR FORCING
New Minor Forcing comes up when responder bids a new minor after
opener has rebid 1NT. For example,
1C : 1S
1N : 2D!
2D is artificial, showing 11+ points and asking opener to further
describe his hand. Responder is interested in game, normally has a
five-card major suit and wants to know if opener has support.
Opener's responses, in order of priority, are:
Two of the other major : shows a 4-card suit
Two of responder's major : shows 3-card support, 12 to 13- points
Three of responder's major : shows 3-card support, 13+ to 14+ points
2NT : shows a stopper in the unbid suit, 12
to 13- points
3NT : shows a stopper in the unbid suit, 13+
to 14+ points
Raise of the new minor : Natural, denies the ability to make
any other bid
Rebid of opener's suit : Denies the ability to make any other bid
To show a genuine two-suiter, responder can rebid the new minor on
the third round.
New Minor Forcing is OFF in competition.
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CAPPELLETTI
Also known as Hamilton-Cappelletti is a defensive convention for use
after an opponent has opened 1NT. The structure is:
X : Penalty
2C : Any one-suited hand
2D : Both majors
2H : Hearts and a minor
2S : Spades and a minor
2NT: Both minors
Cappelletti may be used in both direct and balancing seat.
The 2C bid asks partner to bid 2D. The overcaller passes 2D if his
suit is diamonds or corrects to the proper suit. Responder may ignore
the 2D relay and pass 2C with a strong club suit, or he may bid two of
a major with a good 5-card suit. He may also bid 2NT with 11-13
points and a balanced hand.
The 2D bid usually shows at least 5-4 in the majors (usually 5-5) and
requests partner to bid his better major. With poor major-suit
support, partner is allowed to pass 2D with a good diamond suit or 3C
with a good club suit. A 2NT response shows either a minor-suit hand
asking partner to bid 3C or 3D, or a limit raise in one of the majors.
In the latter case, advancer plans on rebidding 3H/3S after partner
has bid a minor. As a result, an immediate response of 3H/3S to 2D is
preemptive.
The 2H and 2S bids are nonforcing. Here too an immediate raise by
partner is preemptive. When partner bids 2NT, he is either asking for
the minor or showing a limit raise. For instance,
KQT52 43 AJT72 2 53 K98 K863 JT98
1NT - 2S!- P - 2NT!
P - 3D - P - P
P
Or
KQT52 43 AJT72 2 A987 K98 85 A432
1NT - 2S!- P - 2NT!
P - 3D - P - 3S!
P - 4S
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DEFENSIVE BIDDING OVER A STRONG 1C OR 1C OPENING
Mathe bidding can show a 2-suited hand
Double shows the Majors
NT shows the minors
All other bids are natural.
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Recommended titles : Lawrence, Mike. Workbook on the 2/1 System.
Pavlicek, Richard and Root, Bill. Modern Bridge
Conventions.
Recommended websites : Fred Gitelman's "Improving 2/1 Game Force."
http://www.inforamp.net/~fredg/articles/2over1.html
Anna Marsh and Wayne Flourney's description of
SA-YC and OKbridge conventions.
http://www.annam.co.uk/sayc.htm