The TresBoof Bidding System:
A Forcing Pass System with Moscito Relays
Last revision: 5/22/01
Authors
-------
The original authors of this system included their e-mail addresses all of
which are no longer valid. Having played the system a bit, I saw the need
to do a minor revision to cover some of the issues I've discovered. Other
than that, I've added more text to clear up some of the more confusing
portions of this document. Some sections have also been removed whose
material is already covered by general partnership agreements. For example,
defense bidding and responding to preempts have been removed. Use your
normal methods here. All that is left here is stuff unique to the use of
Tresboof in offensive bidding.
Todd A. Anderson
todd.a.anderson@intel.com
1. Opening actions (with relative frequencies)
Pass (21%): 14+, any shape.
1C (17%): 8-13, 4+ hearts, possibly longer minor, possibly 4-4 majors.
1D (16%): 8-13, 4+ spades, possibly longer minor.
1H (11%): 0-8, any shape. Usually no 5-card suit except possibly clubs (since
an off-shape weak 2 is safer, more descriptive, and more preemptive)
1S (10%): 9-13, balanced, no 4cM unless 4333.
1N (3%): 9-13, 5+ diamonds, no 4cM. (Implies 6+ diamonds and/or 4 clubs).
2C (2%): 9-13, 5+ clubs, no 4cM. (Implies 6+ clubs and/or 4 diamonds).
2D (?): 4-8 weak 2 in major or 20-21 balanced, MULTI
2H (?): 4-8 hearts + minor
2S (?): 4-8 spades + another suit
2N (0.3%): 8-12, 5-5 or more in minors.
3N (0.2%): 8-13, solid 7-card or 8-card minor.
Others (?): Preempts of various sorts. Wild, both because of our general
style, and because often the only alternative is a 1H opening.
2. Strong Auctions
2.1 Introduction to theory of Moscito relays
----------------------------------------------
In general, if we are in a game force then one player is always making
cheap, meaningless bids ('relays') and the other describes his hand
artificially. Up to about the level of 3H responder is describing shape,
after which he describes first total number of aces and kings and then location
of specific high cards. Responder doesn't really need to think, just obey
opener's requests.
A lot of sequences are designed to be parallel, to minimize the amount of
memory work needed. For example, after the 1C response, if opener relays 1D
then all of responder's bids (1H and up) are the same as the initial responses
of 1H and up, just a different point range. If I make reference, for example,
to "S2 scheme", that's the name of one family of parallel sequences which I
will describe later.
A word about notation: If you see something like
"2S: Diamond shortness. 4414, 5404, 4504, 4405", then that means that after
opener relays 2N, 3C by responder shows 4414, 3D shows 5404, 3H shows 4504,
3S shows 4405.
Another word on notation: hand patterns lacking "-"s indicate specific
holdings in suits following the SHDC sequence. Hand patterns including
"-"s indicate relative length of suits but do not show any ordering of suits.
For this hand pattern description, the length of suits must be previously
agreed. For example, 7321 indicates 7 spades, 3 hearts, 2 diamonds, and
1 club whereas 7-3-2-1 indicates any hand where the longest suit is 7 long,
the next longest 3, etc.
2.2 Responses to big pass (14+):
---------------------------------
1C: 8-10 pts, 2+ controls, any shape.
1D: 17+ GF relay
Responder bids the first-round response structure below of 1H-2C
others: 14-16 followed by natural bidding
1D: 0-7 pts, any shape.
1H: 17+ any shape
1S: 0-4 any shape
1N: 17-19
2C: 5-7, GF
1S: 14-16 w/ spades
1N: 14-16 bal
2C: 14-16 w/ clubs
2D: 14-16 w/ diamonds
2H: 14-16 w/ hearts
2S: 17+ w/ spades (to prevent wrong-siding should responder bid 1S after 1H)
2N: 22-24 bal
others: GF
Responder should raise with a good fit and a max, or bid a new suit as a
scramble with a misfit. Opener should show a 4-card major before a longer
minor -- finding a potential 4-4 fit has priority.
1H: 11+ pts, 4+ spades except it denies 4045 and 4054 patterns!. Opener relays 1S:
1N: 4+ hearts. Opener relays 2C:
2D: 3-suited, both majors. Opener relays 2H:
2S: Low (club) shortage. 4441, 5440, 4540, 4450.
2N+: High (diamond) shortage. 4441, 5404, 4504, 4405.
2H+: S2 scheme.
2C: 4+ diamonds. Opener relays 2D, then 2H+ is S2 scheme.
2D: Spade 1-suiter or 4144, S1 scheme.
2H+: 4+ clubs, S2 scheme.
1S: 11+ pts, 4+ diamonds, denies 4+ spades, except when 4045 or 4054!
2C: 4+ hearts. Opener relays 2D, then 2H+ is S2 scheme.
2D: Diamond 1-suiter or 1444, S1 scheme.
2H+: 4+ clubs, S2 scheme.
1N: 11+ pts, 4+ hearts, denies spades or diamonds.
2D: Heart 1-suiter, S1 scheme.
2H+: 4+ clubs, S2 scheme.
2C: 11-13 pts, balanced (4333, 4432, or 5332 with no 5-card major).
This allows opener to quit the relays and just bid 3N if he's minimum
with no major. Also, if responder doesn't respond 2C but later shows one
of these shapes, he promises 14+ pts. The relay structure is described
later.
2D: 11+ pts, club 1-suiter, S1 scheme.
Others: 6-9 pts, good 6-card suit (7 if 3-level, 8 if 4-level). Everything
natural afterwards (raise is invitational, everything else GF).
2.3 S1 scheme
--------------
A good memory device is that the "1" in S1 stands for one-suited hands but it
will also handle the hands with 3 equal suits. The S1 scheme always starts
with responder bidding 2D and opener relaying 2H, then:
2S: Either low shortage or 6-3-2-2. Opener relays 2N:
3C: 6-3-2-2.
3H: Low 3-card suit.
3S: Mid 3-card suit.
3N: High 3-card suit.
3D+: 5-3-3-2, 6-3-3-1, 7-3-2-1, 7-3-3-0
2N: Mid shortage. 5-3-3-2, 6-3-3-1, 7-3-2-1, 7-3-3-0.
3C: Three equal suits. 4-3-3-3, 4-4-4-1 (one major), 7-2-2-2.
Remember, 4-3-3-3 promises 14+ since responder didn't bid 2C originally to
show 11-13 bal.
3D+: High shortage. 5-3-3-2, 6-3-3-1, 7-3-2-1, 7-3-3-0.
Remember, if responder shows 5-3-3-2 and their suit is a minor it promises
14+ since responder didn't bid 2C originally.
2.4 S2 scheme
--------------
A similar memory device for this scheme is that the "2" in S2 corresponds to
two-suited hands but this scheme also handles the rare unequal 3 suiters
(5-4-4-0). The S2 scheme always starts with responder bidding 2H and higher:
2H: Lower suit longer. Opener relays 2S:
2N: Lower suit longer, low shortage.
5-4-3-1, 6-4-2-1, 6-4-3-0, 6-5-2-0, 7-4-2-0.
3C: Lower suit longer, 3-suiter (both minors) or equal shortage.
5-4-2-2, 5-4-4-0, 6-5-1-1, 7-4-1-1.
3D+: Lower suit longer, high shortage.
5-4-3-1, 6-4-2-1, 6-4-3-0, 6-5-2-0, 7-4-2-0.
2S: Equal-length suits. Opener relays 2N:
3C: Low shortage. 4-4-3-2, 5-5-2-1, 5-5-3-0, 6-6-1-0.
Remember, if responder shows 4-4-3-2 it promises 14+ since responder
didn't bid 2C originally.
3D+: High shortage. 4-3-3-2, 5-5-2-1, 5-5-3-0, 6-6-1-0.
Remember, if responder shows 4-4-3-2 it promises 14+ since responder
didn't bid 2C originally.
2N: Higher suit longer, low shortage.
5-4-3-1, 6-4-2-1, 6-4-3-0, 6-5-2-0, 7-4-2-0.
3C: Higher suit longer, 3-suiter (both minors) or equal shortage.
5-4-2-2, 5-4-4-0, 6-5-1-1, 7-4-1-1.
3D+: Higher suit longer, high shortage.
5-4-3-1, 6-4-2-1, 6-4-3-0, 6-5-2-0, 7-4-2-0.
2.5 Balanced scheme
--------------------
Responder responded 2C, opener relayed 2D, then:
2H: 4 spades.
2N: 4 hearts. 4432, 4423.
3C: 4 diamonds. 4342, 4243.
3D: 4333.
3H+: 4 clubs. 4324, 4234.
2S: 4 diamonds.
3C: 4 hearts. 3442, 2443.
3D: 3343.
3H+: 4 clubs. 3244, 2344.
2N: 4 hearts.
3D: 3433.
3H+: 4 clubs. 3424, 2434.
3C: 5 diamonds. 3352, 3253, 2353.
3D: 3334.
3H+: 5 clubs. 3325, 3235, 2335.
2.6 Control relays
-------------------
1) 3N is NEVER a relay. When relayer bids 3N, it is to play.
So, if responder bids 3S, 4C is the relay.
2) Relayer can always sign off by making a non-relay minimum game bid.
* If relayer has determined that 3N or 4M is impossible, and is unsure that
* partnership values are sufficient for 5m, he can bid a non-relay 4m
* as strongly invitational, but not forcing.
If relayer is interested in slam but does not think further relays will help
him, he can make a natural, invitational jump in a new suit.
3) It is important for responder to think in terms of the number of possible
bids he is skipping, rather than the bid itself. For example, 3S-4C
skips one step, while 4D-5D skips four steps. In general, responder has
one more good feature in his hand for every step he skips.
4) The first relay after shape has been determined asks for controls.
An ace is two controls, a non-singleton king is one control.
Responder must have 3 controls for a bid promising 11+ points, so he skips
no steps to show only 3, skips 1 step to show 4, skips 2 to show 5, etc.
Responder must have 2 controls for a bid promising 8+ points, so he skips
no steps to show only 2, skips 1 step to show 3, skips 2 to show 4, etc.
5) After that, responder orders his suits by length, ignoring singletons and
voids, breaking ties by rank. For example, for 3532 the order is
H-S-D-C, while for 1453 the order is D-H-C.
6) Responder then makes a list like:
A xor K of first suit (not both, opener can always distinguish
A xor K of second suit between 0 and AK)
* A xor K of third suit
* ** A xor K of fourth suit (if applicable)
Q of first suit
Q of second suit
Q of third suit
** Q of fourth suit (if applicable)
*** "something extra"
*** "something extra"
*** "something extra"
* if this suit is a doubleton, the check is reversed, and this should read
"0 or AK of nth suit"
** if the fourth suit is a singleton or void, it is completely ignored, so
this item does not exist.
*** this is pure judgement. if nothing else is left on the list, responder can
skip an extra step or two to show that he still has extra values that he
hasn't shown yet. this could be the jack of a long suit, a singleton
honor, etc.
7) Responder looks at the current list, and skips n steps to show that his
hand meets the first n conditions on the list but not the (n+1)th. He then
crosses off the n+1 conditions, to get a new, shorter list, starting with the
(n+2)th condition. Lather, rinse, repeat.
2.7 Relay reversals
--------------------
After Pass-1H or Pass-1S, there are certain times when opener does not
want to be relaying. These happen most often when opener is minimum, does
not have support for responder's suit, and has the suit which responder just
bid (so that responder may be playing the contract, and opener would not wish to
tip responder's hand to the defense). We have found that these are virtually
the only occasions where opener doesn't want to relay. Relay bidding may still
be effective, so we have devised this scheme to let *responder* relay:
After Pass-1H or Pass-1S, bids of 2C or higher by opener show 14-16 points,
4+ of the bid major, denies the other major. 2C shows diamonds, 2D shows a
1-suiter, 2H+ shows clubs, etc. Responder may then relay, and the bidding
proceeds as with the normal S1 or S2 schemes, or responder may just bid
naturally.
These bids are *optional* -- opener always has the right to retain captaincy
if he wants it.
2.8 Examples
-------------
-- AT98
K53 Q42
AKT83 QJ94
AKQ87 JT
Pass (14+) 1C (8-10)
1D (GF) 2C (balanced)
2D 2H (4 spades)
2S 3C (4 diamonds)
3D 3H (4342)
3S 3N (2 controls)
4C (looking for 7) 4H (Skipping one step. The first condition holds but the
second does not. I have A xor K of spades, but
nothing (AK impossible) in diamonds.)
4S 4N (Skipping no steps. The first condition does not
hold. I have nothing in hearts (or AK, but that's
impossible)).
6D (Missing HA, so sign off)
KJxxx AQx
AQ Kxxxxx
Ax Q
AQxx Kxx
Pass 1N (11+ pts, 4+ hearts, denies spades or diamonds)
2C 2D (Heart 1-suiter or 1444)
2H 2N (Heart 1-suiter, diamond shortness)
3C 3H (3613)
3S 4C (4 controls (2 for AS, 1 for KH, 1 for KC))
4D (we must have all aces and kings except for irrelevant KD, so
looking for likely grand slam)
5C (KH, so don't bid 4H.
AS, so don't bid 4S.
KC, so don't bid 4N.
No QH, so bid 5C.)
5D 5S (QS, so don't bid 5H.
No QC, so bid 5S.)
7S (partner must have S AQx H Kxxxxx D x C Kxx. Spades is safer, since hearts
might break 4-1, which we can survive playing spades but not hearts.)
KJ AQxxx
AKQ98 Txx
AQx Kx
QJx T9x
Pass 1C (8-10, any shape)
1D (17+, game forcing relay)
1H (4+ spades)
1S 2D (One-suiter or 4144)
2H 2N (Diamond shortness)
3C 3D (5323)
3H 3N (3 controls (AS is 2, KD is 1))
4C (Slam's still possible -- put responder's king in clubs for example)
4H (AS but not KS, so don't bid 4D.
Neither AH nor KH, so bid 4H.)
4S 4N (Either AK of clubs or neither AC nor KC)
Pass (Partner has AS but only 3 controls, so he can't have AK of clubs. Thus
we have 2 clubs losers. No slam. He has 3 controls and AS and nothing
in hearts or clubs, so he must have KD, and probably QS to get up to 8
pts, though that's not certain. 4N is probably safer than 5H, since no
danger of a club ruff.)
AJ KQTxx
Axx xx
KJx AQxxx
Axxxx K
Pass 1H (11+ pts, 4+ spades)
1S 2C (4+ diamonds)
2D 2S (equal length suits)
2N 3C (club shortness)
3D 3S (5251)
4C 4D (3 controls (AD is 2, KS is 1, KC is singleton and don't count))
4H (Slam is likely if responder's values are concentrated in his long suits)
5S (One top spade honor, so skip 4S.
One top diamond honor, so skip 4N.
No top heart honors, so skip 5C.
QS, so skip 5D.
QD, so skip 5H.
No QH, so bid 5S.)
5N (Wow! Partner has KQxxx xx AQxxx x, possibly with the KC, which would be
the 13th trick. Anything else you'd like to share, partner?)
6D (Well, I've got this stiff king...)
7N (Cool.)
3. Intervention in relay sequences
3.1 First-round interference over opening Pass
------------------------------------------------
General principle is
Over 1Z: Pass and Double are relatively strong bids,
Other suit bids are natural 5-7.
1nt = 0-4 artificial negative.
Jump bids should be made on a 6 card or longer suit headed
by QJT, KJ, or KQ and no side strength.
A cue bid of 2Z should show control values in the suit.
Pass usually forces double so may be made on a penalty hand. The possibility
of a penalty pass is a psychological edge as well as any theoretical
gain. This a almost garunteed to expose any psychics -- it seems psychics
are frequent against the strong pass.
Over 1C: Pass forces double:
Pass is penalty
1D show 11+ with "something extra" denies 4+ spades
1H-2C show 11+ points, normal relay
2h+ show 6-9 and a good 6 card suit.
Double shows 8-10 points
1D, 1H, 1S, 2C are natural 5-7 point bids (1D may be made on 3 cards)
1N is 0-4 artificial negative.
2D+ show <6 and a good 6 card suit
Over 1D: Pass forces double
Pass is penalty
1H-2C show 11+ points, normal relays
2H+ show 6-9 aand a good 6 carder
Double shows 8-10 denies 4+ spades
1H shows 8-10 4+ spades
1S, 2C-2H show 5-7 natural.
1N is 0-4 art neg.
2S+ show <6 a good 6 card suit
Over 1H: Pass shows 8+, denies 4+ hearts (double relays--suit order HDSC)
Double shows 8+, 4+ hearts (1S relays)
1S, 2C-2H show 5-7 natural
1N shows 0-4 points, art neg.
Over 1S: Pass shows 8+, denies 4+ spades, double relays gf and then:
1N shows H, denies S or D (as usual)
2C shows HD 2 suiter
2D shows C or D one suiter (relays off)
2H+ shows CD 2 suiter
Double is 8+, optional (usually 4 spades) bidding proceeds naturally.
1N shows 0-4 art. neg.
2-bids show 5-7, natural.
Bidding after artificial negative 0-4:
Pass with a minimal balanced hand and use SOS and runout techniques.
Bid 2C as a choice of suit request.
Bid 2D-2S as signoff.
Bid 2nt as invitational with a strong hand.
Cue bid the enemy as the only forcing bid
3 bids are invitational, not forcing.
After a 5-7 natural bid, all raises are non-forcing, 2nt is invitational,
and cue the enemy suit to force.
Over 1N: Double with most hands of 8+.
Bids show a good suit and 7-9 points, and no desire to penalize
the opponents.
Over 2C: X: Optional, 8+, 3+ decent cards in their suit.
2D: Takeout -- leaning towards majors.
2H, 2S: 8-10 points, good suit, non-forcing
2N: Diamonds, 8+, good suit
Jump bids are natural, GF.
New suits after a Take-out ARE forcing. With majors bid 2d. With a good
2 suiter in diamonds and a major suit bid 2nt then the major--this is
invitational. With a minimal 2 suiter with D, just bid the major.
Over 2D, 2H, 2S: X: Optional, 8+, 3+ decent cards in their suit.
2 suit: 8-10 points, 4+ card suit.
2N - 3S: Transfers. Transfers to a lower suit than the opps
bid is 8+. Transfer into their suit is 11+,
3-suiter. Transfer above their suit shows a game
force and an excellent suit.
Over higher bids: X is penalty, all bids are game-forcing.
3.2 After Pass-1C
------------------
Over X, 1D, 1H, 1S: P is gf relay (use relays over N step interference)
suit bids and 1N are natural 14-16
X or XX is 14-16 a takeout with the right SHAPE.
2Z is micheals 14-16.
Over 1N: Will never happen.
P forces X, then any bid is gf.
X shows 14-16 optional.
suit bids are natural--2nt is unusual.
Over 2C: P forces X then
P is penalty
any other bids are gf.
2D is takeout -- leaning towards majors
3C general takeout shows a strong hand
all other bids natural.
X is optional.
2D is takeout 14-16.
all other bids natural, 14-16.
2N is natural 15-16 points, invitational.
Over 2D+ P shows 14-16
X is optional leaning towards penalty
Bids are gf, natural.
3.3 After Pass-1D
------------------
If the opponent then bids we pretend that he opened the bidding and use
normal defensive methods, except that both of us know something about
the other's point-count.
3.4 Intervention after a game-forcing relay has been established
------------------------------------------------------------------
If they intervene with a 2-step bid, then we conduct our relay auction as
normal, with pass substituting for the 1-step bid and double substituting
for the 2-step bid.
1-step interference over responder: Double by relayer is penalty. Pass relays,
after which responder may either make his normal bid or double to show
values in the doubled suit and deny the cheapest response (opener may pass
for penalties or 2-step to relay).
1-step interference over relayer: Pass and double both show a 1-step response,
but double shows a high card (for defense or N) in the opponent's suit while
pass denies it. Opener may penalize the boofa or 2-step to relay. Other
bids are as normal.
Double of responder: Relayer may redouble to play, or pass as the usual relay.
Then redouble by responder shows extra values (14+ or compensating strength)
(1-step relays), and a 1-step bid shows control in the doubled suit, no
extras, and denies the cheapest response (2-step relays). Other bids by
responder are as normal.
Double of relayer: Responder may pass to show extras (double relays), redouble
to show a high card in that suit and deny the 1-step response (1-step relays)
or make his normal response with neither of the above.
3+ step interference over responder:
Relayer may double for penalty, and Pass resumes relays n-2 steps higher.
3+ step inteference over relayer: Drop relays, bid naturally. Responder should
either double with undisclosed defense or pass without, should not get in
the way if relayer wants to double. Afterwards cheapest suit by
relayer may be artificial (depending on how deep we are in relays)
to give responder more room to say something.
Intervention in control relays over responder: Relayer may double for penalty,
or pass to continue relays (X by responder subs for first step).
Intervention in control relays over relayer: Responder doubles to show an
undisclosed control in that suit, or passes to deny such. Relayer may then
bid the cheapest step to relay, the intervention suit being skipped over
since we have the info already.
----------------------------------------------------------------------------
4. Intermediate and Weak Auctions
4.1 Responses to 1C
--------------------
Pass: Any really weak hand, with or without clubs.
1H: Either a solid invitation (based on HCP rather than playing points) or a
game-force. Opener bids 1N with both majors (then 2C is GF relay, all else is
natural and invitational), 2C+ with a max (as Moscito), 1S with a min (then 1N
is GF relay as Moscito, all else natural and invitational).
1N: 4-card support and 10-12 points in support. Basically a raise which won't
go anywhere unless partner really likes his hand.
1S: 5-card suit, usually weak, but game might be possible if partner has a fit.
So, partner should raise with a good hand and support.
2C, 2D: Weak hand, good suit.
Everything else except 1D: Signoff, preemptive.
1D: None of above. Starts a totally natural sequence. Could be a nondescript
hand barely worth a response, could be a mediocre hand looking for a fit,
could be almost worth an invitation but wants to find out more about partner's
hand before evaluating.
Opener bids (in order of priority): 1H with 5+ hearts, 1S with 4 spades,
1N with balanced, 2m with a longer minor suit, and something else with a
really nice *distributional* max. (Rebid 1H usually with 4-5 majors, since
partner can bid 1S to find a spade fit.) Most bids after 1D response are
nonforcing, but many raises and jumps are invitational.
4.2 Responses after 1D
-----------------------
Pass: Any really weak hand, with or without diamonds.
1H: No other bid available.
Starts a totally natural sequence. Could be a nondescript hand barely
worth a response, could be a mediocre hand looking for a fit, could be
almost worth an invitation but wants to find out more about partner's
hand before evaluating.
Opener bids (in order of priority): 1S with 5+ spades, 1N with balanced,
2m with a longer minor suit, and something else with a really nice
*distributional* max.
1S: GF. Opener rebids as in Moscito.
1N: 4-card support and 10-12 points in support. Basically a raise which won't
go anywhere unless partner really likes his hand.
2C, 2D: Weak hand, good suit.
others: Signoff, preemptive.
4.3 Bidding after 1C or 1D in competition
-------------------------------------------
Ignore a 1-step overcall. Ignore a double, except that redouble can be used to
show a hand with 3-card support (so the 1-step response denies support).
Negative doubles through 2D. The negative double is like a 1D response to 1C
or a 1H response to 1D -- it asks partner to describe his hand without actually
saying much. Penalty doubles of 2H and higher.
New suit responses are forcing. The cheapest bid in partner's suit is a
non-invitational raise. Jump shifts and raises are preemptive. Cue-bid of
their naturally-bid suit shows at least invit strength, promises 4-card
support.
After the initial action, either player may cue-bid the enemy to show extra
values without a convenient bid. If responder does it, it's a GF. *These
cuebids don't promise anything in their suit!*
4.4 Responses to 1H
--------------------
Pass: Almost any 0-10 hand, and decent hands with hearts as well.
1N: ~18+, artificial, forcing. Opener rebids 2C, artificial negative, with
0-4, after which the auction reverts to natural (responder must jump to force).
With 7-8, opener bids 2N (game forcing). With 5-6, opener bids a 4cM if he
has one, otherwise 2D, and the auction proceeds naturally (generally nonforcing
bids).
2N: 21-23, natural.
2M,3*: Preemptive.
1S,2m: General runout, probably decent hand (since most really lame hands
pass). Up to 17 pts. 1S shows 4+, 2m shows 5+. Opener should raise
with a max and a good fit.
4.5 Bidding after 1H - X - ?
-----------------------------
XX: SOS. Usually no 4-card heart suit, and no convenient 5-card suit to escape
to. Could be a strong hand with a good suit (plans to jump next).
1N: As normal.
1S, 2C, 2D: Weak runouts, decent 5-card suit. Should be a *good* suit for the
higher runouts, since options are cut off.
Jumps: Weak. 2N is unusual for minors.
After the first round actions, 1N tends to show the most awkward suit that the
bidder could hold. For example, 1H-X-1S-X-1N shows diamonds (opener can't
have good enough hearts to override partner's decision, since he didn't open
2H). 1H-X-P-P-1S-X-1N shows hearts, since responder could have something like
6 hearts. XX, of course, is always SOS.
4.6 Responses to 1S
--------------------
Pass: Bad hand, 4 or (weak 5) spades. With good spades, respond 2S (also a
signoff, but more preemptive)
1N: To play.
2C: Puppet to 2D. Either a diamond signoff, or any invitational hand.
With an invite, responder next bids his suit.
2D: Artificial game force. Opener should bid a doubleton major if he has one,
otherwise bid 2N with 5 clubs, 3C with 5 diamonds, 3D with any 4333.
2N: Light invitation to 3N. With a strong invitation, bid 2C then 2N.
Everything else: Signoff.
In competition: If they double 1S, redouble is SOS and all else unchanged.
If they overcall, doubles are penalty, 2N is an artificial
game-force, and jumps are invitational. Bids are to play.
4.7 Responses to 1N
---------------------
2C: Puppet to 2D, either a signoff or an invitational hand. Responder bids
his suit next with an invitation.
2D: Game-forcing relay. Then 2H shows 4 clubs (S2) and 2S+ is 1-suiter (S1).
Responder will frequently break out of relays to find out about stoppers.
2N: Invitational.
2H, 2S: Good suit, nonforcing.
3*, 4*: Signoff. 3C tends to imply a mild diamond fit.
In competition, doubles are penalty, redoubles are SOS, raises are competitive,
and new suits are inviational and non-forcing. Cue-bids ask for stoppers.
4.8 Responses to 2C
--------------------
2D: Game-forcing relay. Opener bids 2H with secondary clubs (S2 scheme), or
2S or higher with a 1-suiter (S1 scheme).
2H, 2S, 2N, 3C, 3D: Invitational, natural.
All else: Preempts.
In competition: Same as after 1N.
4.9 Responses to 2N and 3N
-----------------------------
In response to 2N, 3m is a signoff, 4m is invitational to game, 4N is
invitational to slam in a minor (opener bids 5C to reject, 5N or something
else high to accept), and 5m, 6m, 7m are signoffs. 3M is forcing. 3N and 4M
are signoffs, and opener should *not* pull.
In response to 3N, pass is to play and should only be done with a couple of
outside tricks and a couple of outside stoppers. Any club bid is a signoff in
opener's minor. 4D asks for an outside second-round control (4H=H, 4S=S, 4N =
other minor, 5m = none). In general, the cheapest N is natural, but a N
raise or jump is forcing and invitational to slam in opener's minor if opener
has undisclosed extras.
Text file Source (historic): geocities.com/drtodd13/bridge_files
geocities.com/drtodd13(to report bad content: archivehelp @ gmail)
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