MINOR OPENING 12–21
hcp (high cards points)     The rules propose for this opening apply only for non passed hand with a bidding without interference. If there are interference read here. RULE-01: After a minor opening (1 /1)
the response in 4 is
Gerber. The Gerber used here have an adjust to only answer aces with no
continuation in asking for king, so any bid after the Gerber's response is
conclusive.Opener Responder Opener Responder 1
4 <= Gerber
1 4 <= Gerber? ? The answers are: 4 =zero
or 4 aces/ 4=1 ace/ 4=2
aces /4nt=3 acesAfter the Gerber Responder's bids in: 4 ;
4; 5;
5; 6;
6; 6;
6; 6nt; 7x are conclusive.Some possible hands to use Gerber after minor opening are: a) x KQJ109xx AKQJ x
b) AKQJ10xx Kx x KQx
c) x KQx KQJ109x AKx
d) AKx x KQJ10xxxx x
e) x KQ10 KQx AKQJxx
f) x x KQJ10x AKQ10xxRULE-02: After a minor opening (1 /1)
the response in jump to level 2 like 2/2
are weak showing 6/7 cards with less than 6 hcp, so Responder can pass
after Opener's second bid in other suit or rebiding his own suit, but some possible bad hands used as weak jump
like below can fit with Opener's hand and game
can be possible:a) Qxx QJ10xxx xx xx b) K109xxxx x xx Jxx
c) xx A1098765 xx xx
d) x KJ106543 xxx x
e) xx KQ10865xx xxx
f) KJ8732 xx xx Jxx
RULE-03: After a minor opening (1 /1)
the response in jump to level 3 like 3/3
are splinters showing 5+ cards support and singleton or void in the major bidded.
These responses has strength limited up to 13 hcp; hands with 14-16 hcp should first raise to level
2 to show support and 10+ hcp and after jump to level 4 to show the splinter
in a major and good strength to try Slam.Possible hands to use mini splinters at level 3 after 1
are:a) x Q10x Kxxx AQzxx
<=
3 splinter b) AJx x Kxx KJ10xxx
<= 3 splinterc) KQx Qxx x AJ10xxx
<= 3 splinterPossible hands to use mini splinters at level 3 after 1 are:d) x KJx Q109x AQxxx
<= 3 splintere) Kxx - AJxxx A9xxx
<= 3 splinter
RULE-04: After 1 opening the response
3 means 6+
cards with 8-11 points (each card after the 4th count 1 point) and the hand
must have honors concentration in Clubs. This is a special need of 2/1 system considering that response
1nt is up to 9-10-hcp and the response of 2nt is restricted to 11
hcp and should not have singleton or 6+ cards. RULE-05: After a minor opening (1 /1)
are transfers the following responses bids: 4
transfer to 4;
4 transfer to 4;
4 transfer to the other
minor not bidded. These hands with 7/8 cards should be limited up to 10 hcp
with only one ace.++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 OPENING
- without interference by opponentsOpener Responder 1 ?1 => generally 5+ cards
and no major if Responder has 5 +4M then:
with 12+ hcp Responder bids first 1 and after
the major; with 5-11 hcp Responder bids first his major and after 1nt Responder may: pass; Responder may: bid 2nt invitation with 10-11 hcp; Responder may: bid 3 sign-off with
6-4major and 5-9 hcp because now a 2 bid is
nmf.Note: After 1 response Opener only bids major
with 54M
- read Walsh convention. 1 => 4+
cards 6+ hcp1 => 4+
cards 6+ hcp1nt => deny major 6-10- hcp and deny 5 /5 cards 2 => 4+
cards and 10+ hcp - read inverted-minors2 => 6+
cards - less than 6 hcp - need one top honor: xx Jxx KJxxxx xxx Jxx QJ10xxxx xx
10xx x A109876 Jxx 2 => 6+
cards less than 6 hcp - need one top honor:x QJ98xx 987 Jxx/Qx K1098xx 9x Jxxxxx A98xxxx - Jxx 2 => 6+
cards less than 6 hcp - need one top honorK98xxx x xxx Jxx
A98xxxx xx xx xxQJ1098xxx x xx Jxx 2nt => 11 hcp no majorn no 5 +
cards -semi stoppers in majorsK108 A10x Q109x QxxQJ8 K10x Q109x KxxQJ8 K9 KQ987 109x 3 => 5+
cards weak 5-9 hcp - read inverted-minors 3 =>
singleton 5+ cards
11-13 hcp -GF - denies major3 =>
singleton 5+ cards
11-13 hcp -GF - denies major3 =>
singleton 5+ cards
11-13 hcp -GF - denies major3nt => balanced 16-17 hcp with 4 4333 or 4432KJ8 AQ xK10x K9xx
or AJ KQ8 QJ10x QJ9xread 1minor-3nt 4 => Gerber asking for
aces4 => transfer to 4
no 2 aces
up to 10 hcp 8 KQJ109xx A7 109x
or 82 AQJ109xx 7 1097x
4 => transfer to 4
no 2 aces
up to 10 hcp AQJ1098x 9 K75 10x
or QJ1098xxx 9 K7 10x 4
=> transfer to other minor (5) no 2
aces up to 10 hcp10x - AQJ98732 Jxx
or x x KQJ10763 Jxxx 4nt => RKC for 5 => to play - 6/7 cards -
no 2 aces or void - up to 10 hcp 5 /5/5
=> exclusion RKC for
(the suit bidded can't be counted for ace) Opener's second bid after response 1 Opener Responder 1 1 ? 1 => shows 54: Jx KQxx Qx AJ98x
(Walsh) or 44141 =>
shows 54: QJxx KQx x AQ98x
(in Walsh promise 5+)can also have a weak hand 11-14 hcp with 6 +5
or 5-51nt => balanced hand - no singleton: QJ8x KQ92 Qx K9x
(playing Walsh can have both majors) 2
=>
shows 6+ cards
: Qx KQx xx AQ98xx2 => support
with honor 3rd or 4
cards: xx KJ8 AJx AJ982
or x KJ8 Axxx AJ982 2 => reverse 16+ HCP
with 5+
and 4: Kx KQ10x Qx AQJ9xAfter a reverse Responder must use Leb reverse convention published at LEBENSOHL CONVENTION where: Responder shows a weak hand (5-7 hcp) bidding 2nt that is a initial of sign-off and is a transfer to 3 .
Responder then can pass in 3
or rebid his suit to sign-offThus, after 2nt Opener with a low reverse 16+-18- hcp bid 3
but with a high reverse 19-21 hcp don't accept the sign-off and bid 3nt or game in a minor suit. 2 => analogous
previous situation2ST=> balanced hand with 18-19 hcp, ex: K10x KQ10x Qx AQJ9Responder with 5-6 hcp can pass; Responder with 7-12 can sign-off in 3nt; Responder with 13+ can search for Diamonds support bid a reverse 3 /3 suit with Slam interest. 3 => 6+
cards with 16-19 hcp need 2 top honors( AKQxxx
or AKJxxxx then Responder
can:pass; bid 3nt; bid a major stopper trying a possible 3nt if Opener have stopper in the other major. 3 => support with 4
cards and 16-18 points - almost a GF unlessResponder has weak 5-7 hcp. Thus, any major bided by Responder is (in principle) a stopper trying 3nt, but can be a cuebid with Slam interest if Responder bypass 3nt. 3 /3
=>
are splinters with 4 cards support and
16-19 points - GF.Kxx x KQxx AQJ9x or x Kxx A109x AKJ9xNote: when a fit is found and hand have a singleton we add 3 points for the singleton having 4 cards support. So, points = hcp + distribution values, 3ST => solid Clubs suit AKQJxx, AKQ10xxx, with stopper in majors Kx
Axx
x AKQJ9xx or Kx Kx x AKJxxxxx4 => Gerber
- asking for aces
showing Slam
interestOpener probably has strong Diamonds support and second controls in the majors 4 => reverse
distributional hand
- possible 65
or 64
GF asked for cuebid or 5 sign-off
4
=> good distributional hand 6-5 or 7-5: - AQJ10x
x KQJ1098xResponder with 2
and 2
or 1 must prefer play in 5
- so pass only with 3
cards 4
=> good
distributional hand
6-5 or 7-5: KQJ98 - xx AKJxxxanalogous previous - Responder pass only with 3
cards 4nt => RKC for
5
=> to play 7/8 cards - no strong hand or with void - up to 15 hcp:A8 x Jxx AKJxxxx
or x Ax xx KQJ10xxxx
Opener's second bid after response 1 Opener Responder 1
1? 1
=> deny 4
cards and possible reverse hand - 12-15 hcp can have only 3
cards - but can also have a weak hand10-13 hcp with 6 +5
and in 3rd bid rebid
1nt => deny 4 /4
- limited hand 12-14 hcp - shows 4/5
cards 2
=> normally 6
cards : Qx x KQxx AK98xx2
=> 5/4
reverse hand 16-21 hcp - Responder must use Leb for reverse now 2
=> 4 cards support - 12-14
hcp 2
=>
5/4
reverse hand 16-21 hcp Responder must use Leb for reverse now 2nt => balanced hand 18-19 hcp Responder can use New Minor Forcing bidding 3 Opener with balanced hand and 18-19 hcp having 4
cards should not jump to game in 4 ,
because a jump for 4 showsgood distributional hand but not strength 18-19 hcp, so Opener first jump to 2nt and in 3rd bid then 4 .3
=> 6+
cards with 16-19 hcp AKQxxx
or AKJxxxx necessarily
with AK then Responder can pass, bid 3nt with stopper in unbid suits, bid 3
with
stopper trying a possible 3nt if Opener has
stopper in ,
or rebiding 3
asking for support of 3 cards.3 => splinter singleton
- support 4
16-18 points Axx AJ10x x KQ98xResponder rebids 3
is sign-off3 => 4 cards support 15-17
hcp can be 5-4-2-2
or balanced hand that could be opened in 1 nt ( AJ10x AJ10x xx KQ10)
but having both majors is preferred to be opened in a minor to find fit in major in partial score (no singleton in 5431 hand). 3 => splinter with 4
cards and 18-21 points Responder 4
is cuebid support and in
4
is a cuebid, both showing Slam interest. This hand is GF more strong than jump to 4
because open possibility of Responder cuebid:x AJxx Ax AKJ10xx 3nt => solid Clubs suit AKQJxxx, AKJ10xxx, with stopper ,
and semi stopper in Kx xx Q10x AKQJ9xx or QJx x Ax AKJ109xx4
=> cuebid strong
suit with 4
cards
(Kx KQxx xx AKQ109)
waiting for
cuebid
4
=>
splinter
with 4
cards support and 17-19 points4
=>
distributional
hand 4
support limited at 15 hcp x AK10x xx AKJ9x4
=> 6+5
strong distributional hand KQJ98 x x AKJxxx
Responder with 2
and 2
or 1 must prefer play in 5
so pass only with 3
cards 4nt => RKC for
5
=> to play 7/8 cards
x
Qx Kx AKJ98xxx
or
x
Kx Kxx AKQ1098xOpener's second bid after response 1 Opener Responder 1
1? 1nt => no 4
cards - limit hand to 12-14 hcp - 2
=> normally 6
cards or 5
with a singleton (probably
)2
=> 5/4
reverse hand 16-21 hcp Responder must use Leb for reverse now 2
=> 5/4
reverse hand 16-21 hcp Responder must use Leb for reverse now 2
=>
4
cards - 12-14 hcp
-2nt => balanced hand 18-19 hcp Responder can use New Minor Forcing bidding 3 Opener with balanced hand and 4
cards should not jump to game in because a jump for 4 shows
good distributional hand but not strength 18-19 hcp, so Opener first jump to 2nt and in 3rd bid then 4 .3
=>
6+
cards with 16-18 hcp (AKQxxx
or AKJxxxxthen Responder can pass, bid 3nt, bid 3
stopper trying a possible 3nt if Opener has stopper in ,
or rebidding 3
asking for support of 3 cards. 3
=> splinter
singleton
16-18 hcp with support of 4
cards
3
=>
splinter with
support 4
cards and 18-21 points Responder 4
is cuebid support and 4
is a cue bid.3
=>
4
cards
support 15-17 hcp can be 5-4-2-2
or a balanced hand that could be opened in 1 nt ( AJ10x AJ10x xx KQ10)
but having both majors is preferred to be opened in a minor to find fit in a major (deny singleton in 5431 hand). 3nt => solid Clubs suit AKQJxxx, AKJ10xxx, with stopper ,
Kx xx Q10x KQJ9xx or QJx x Ax AKJ109xx4
=> cue bid in Clubs with 4
support (KQxx Kx xx AKQ109)
waiting for
cue bid
4
=>
splinter
with support 4
cards and 18-21 points
KQxx Kxx x AKQ1094
=>
6+5
strong
distributional hand ( x AK109x x AK1098x)
Responder with 2
and 2
or 1 must prefer
so pass only with 3
cards 4
=>
distributional
hand 4
support limited at 17 hcp ( AK10x
x xx AKJ98x)4nt => RKC for
5
=> to play 7/8 cards ( Qx
x Kx AKJ98xxx
/
Kx
x Kxx AKQ1098x)Opener's second bid after response 1nt Opener Responder 1
1nt? pass=> nothing to do - less than 15 hcp 2
=>
normally 6 cards or 5
with a singleton in
a major - sign-off2
=> 5/4
reverse hand 16-21 hcp Responder must use Leb for reverse now 2
=> 5/4
reverse hand 16-21 hcp
2
=> 5/4
reverse hand 16-21 hcp
2nt => invitation hand possible 6322 or 5422 with 15-16 hcp 3 => good suit 6/7 cards - Responder with stopper in
both majorsbid 3nt or just bid the major's stopper that he has, then Opener rebid Clubs without the other stopper or bid 3nt. 3
=> 6+5
distributional hand - invitation to game Responder without aces can pass or just make preference to Clubs, Responder can bid his ace in a major making an invitation to game, or with good honors in the minors can jump to game. 3
=> 6+5
distributional hand - invitation to game Responder can pass, bid game in 4 /5
or just sign-off in 4.
3
=> 6+5
distributional hand - invitation to game Responder can pass, bid game in 4 /5
or just sign-off in 4.
3nt => to play 18-19 hcp 4
=> Gerber - asking for aces - Slam interestpossible special hand: AQ
x KQ10 AKJ98xx4 => 6+5
strong
distributional hand - GF - Responder choose minor.4 => 6+5
strong
distributional hand - GF - Responder can pass in 4
only with 3 cards, so with 2
cards Response must prefer 54 => 6+5
strong
distributional hand - GF - Responder can pass in 4only with 3 cards, so with 2
cards Response must prefer 55
=> to play:
-
AJx KQJ9 KQJ1098After response of 1 nt there are no more splinters by Opener. Auction development when Opener rebids 1
after Responder bids 1Opener Responder 1
11
?1 => 4th suit GF - ask for
stop or explanation of the hand no promises 4
cards1nt => shows stopper
and limited Response's hand in 7-10 hcp 2
=> 3+
cards - sign-off - up to 9 hcp2
=> 5+
sign-off - up to 9 hcp2
=> 3
cards - long
suit
with a singleton2 => reverse hand 5+4
FG more than 12 hcp2nt => 11-12 hcp invitation to 3nt with Spades stopper 3
=> 5+4
10-11 hcp invitation3
=> 6+
10-11 hcp invitation3
=> 5+4
reverse hand
more strong
than jump to 4
asking for cue bid un passant 3 => 6+5
distributional hand weak -good Diamons and bad Spades 8-10 hcp 98xxx
xx AKJxxx - 108xxx
x AK109xx x
J7xxx
xx KQJ109x - 3nt => to play - good stop in Spades 4
=> Gerber asking for aces - interest in Slam - maybe
as trump4
=> cue bid 5+4
(solid Diamonds - good support in
)
12-14 hcp4
=> 5+4
12-14 hcp but Diamons not solid
4 => 5-6
strong
distributional hand 11+ hcp: QJ109x
- AKJxxx xx Opener with 2
and 2
or 1 must prefer
so pass only with 3
cards 4nt => RKC for 5 => to play (- xx AKxxx J109xxxx) 5 =>
to play (Jx Q98 KQJ10xxxx -)5
=>
exclusion RKC for
with void in
Note1: The Exclusion Roman Key Card have answer in 4 steps - can use RKC0314/1430: RKC0314 RKC1430 step1 = 0-3 key cards step1 = 1-4 key cards step2 = 1-4 key cards step2 = 0-3 key cards step3 = 2 key cards step3 = 2 key cards step4 = 2 key cards + Queen step4 = 2 key cards + Queen In case the exclusion is made in 5
(void)
then step1=5nt;
step2=6; step3=6;
step4=6 Auction development when Opener rebids 1
after Responder bids 1Opener Responder 1
11
?pass => deny 4
or 4
cards and shows weak hand 5-8 hcp1nt => shows stopper and
limit Response's hand in 7-10 hcp 2
=> 3+
cards - sign-off - up to 9 hcp2
=> 5+
sign-off - up to 9 hcp2
=> 4th suit GF asking for explanation of Opener's hand not promises
stopper Opener with stopper in
bid 2nt prioritily, in second priority bid 3
with 3 cards support, or rebid Clubs (3 ).2 =>
5+
and
4
with 12+ hcp
2nt => 11-12 hcp invitation to 3nt with stopper3
=> 5+4
10-11 hcp invitation3
=> 6+
10-11 hcp invitation3
=> 6+5
8-10 hcp and probably
is a bad suit and top honors are in Diamonds suit xx
98xxx AKJxxx -
x
107432 AKJ109x x
Jx
J8xxx KQJ109x -
3 => 4
cards bad and good honors in Diamons - 10-11 hcp3nt => to play - good stop in Hearts 4
=> Gerber ask for aces - interest in Slam - maybe
as trump4
=> cuebid 5+4
(good Diamonds and support in
12-14 hcp4
=> 6+5
strong
distributional hand -
x
QJ109x AKJxxx x Opener with 2
and 2
or 1 must prefer
so pass only with 3
cards 4 => 4-5+
12-14 hcp but
not strong
(jump bid of 4
is strong) 4nt => RKC for 5 => to play (- xx AKxxx J109xxxx) 5 =>
to play (Jx Q98 KQJ10xxxx -)5
=>
exclusion RKC for
with void in Note2: The Exclusion Roman Key Card have answer in 4 steps - can use RKC0314/1430: RKC0314 RKC1430 step1 = 0-3 key cards step1 = 1-4 key cards step2 = 1-4 key cards step2 = 0-3 key cards step3 = 2 key cards step3 = 2 key cards step4 = 2 key cards + Queen step4 = 2 key cards + Queen In case the exclusion is made in 5
(void)
then step1=5;
step2=5nt; step3=6;
step4=6
Auction development when Opener rebids 1nt after Responder bids 1 Opener Responder 1 11nt ? pass => nothing to do - up to 10 hcp 2
=> sign-off 4+
cards up to 10 hcp 2
=> sign-off good 5+ cards
up to 10 hcp 2 => 5+4 FG 12+
hcp (Walsh)2 =>
5+4 FG 12+
hcp 2nt => invitation 10+-11 hcp with good 9/10/J cards 3 =>
invitation with 5-4
cards and 10-11 hcp can have singleton in a major 3 =>
invitation 10-11 hcp to game with good 6
like:AQJ986
or AK10xxx3
=> 6-5
weak distributional hand 8-10 hcp no GF:x Q9xxx AQxxxx x
or - A9xxx KQJ9xx xz3 => 5-6
weak distributional hand 8-10 hcp no GF: J10xxx x AKxxxx x
or Q87xx x KQJxxxx -3nt => to play 4 =>
Gerber - ask for aces -
Slam interest4
=>
Diamonds suit
solid (AKQ10xxx) - asking
for cuebid or 5
4 =>
6-5
good distributional hand 10 hcp:x Q987x AQJ10xx xOpener with 2
and 2
must prefer
4 => 5-6
good distributional hand 10 hcp: J109xx
- AKJxxx xx Opener with 2
and 2
must prefer
4nt => RKC for 5
=> to play (- xx AKxxx J109xxxx) 5 =>
to play (Kx - KQJ10xxxx Q98)Auction development when Opener rebids 1 after Responder bids 1
Opener Responder 1 11 ?pass => deny 4
or 4
cards and shows weak hand 5-8 hcp1nt => 6-10 hcp should have stopper in
sign-off2
=>
support 4+ 6-9 hcp sign-off 2
=>
the 4º suit ask for explanation - need 10+
hcp shows 5
cardsOpener bids 2
with 3 cards and no top
honor (A/K/Q)3
with 3 cards and one or
more top honors2
with weak hand 11-13 hcp and 5-5
or 6-5 2nt with stopper in
and deny support in 3
with 5
cards and no stopper in
and no support in 3nt with 14-16 hcp 1,5 stopper in
possible singleton Responder after has bidded the 4º suit, if support Opener in one of his suits (here
or ) makes the bidding
GF and in a cooperative way try now to search Slam, but if Responder rebids his suit showing 6
permits that Opener pass with singleton if Opener islimited at 14 hcp. 2 => Responder rebiding his suit is
100% sign-off
5-9
hcpJx QJ987 Jxxxx
x or
Jx KJ987x Jxxx
x 2
=>
support 4 cards 6-9 hcp2nt => 10+-11 hcp with
stopper - invitation to 3nt3
=>
invitation 10+-11 hcp support 4+
cards - could have 53
=>
shows 6-4
and is sign-off for a partnership playing Walsh Jx QJ98 KJxxxx
x or
x J987x KQ10xxxx
x 3
=>
invitation with 6 cards
10-11 hcp - Opener pass with singleton3
=>
invitation with 4 cards
10-11 hcp - Opener may pass 3nt => to play 4 =>
GF strong support in Clubs Slam interest asked for cuebid or 5
4
=>
GF splinter with 4
support and 13-16 hcp, ask for
cuebid or 44
=>
to play 7/8 cards4
=>
to-play -4 cards 11-14 hcp 4ST=> RKC for
(last suit bid by Opener)5
=>
to play - good distribution hand with 5+
cards 11-13 hcp5
=>
exclusion RKC for
with void in
In exclusion for 5
rkc step1=5;
step2=5; step3=5nt;
step4=6Auction development when Opener rebids 1nt after Responder bids 1
Opener Responder 1 11nt ? pass => denies 4 +
cards and shows weak hand 5-9 hcp2
=>
support 4+ 6-9 hcp sign-off 2
=>
the NMF - need 10+
hcp shows 5
cards2 => Responder rebiding his suit is
100% sign-off
5-9
hcpJx QJ987 Jxxxx
x or
Jx KJ987x Jxxx
x 2
=>
shows 4-5
one-round force 10+ hcp2nt => 10+-11 hcp - invitation to 3nt 3
=>
invitation 10+-11 hcp support 4+
cards - could have 53
=>
shows 6-4
and is sign-off for a partnership playing Walsh Jx QJ98 KJxxxx
x or
x J987x KQ10xxxx
x 3
=>
invitation with 6 cards
10-11 hcp - Opener pass with singleton3
=>
5-6
cards
8-10 hcp - Opener pass without honors in majors 3nt => to play 4 =>
GF strong support in Clubs Slam interest asked for cuebid or 5
4
=>
GF splinter with 4
support and 13-16 hcp, ask for
cuebid or 44
=>
to play 7/8 cards4
=>
splinter singleton and 5+
cards with 11-14 hcp 4ST=> RKC for
(last suit bid by Opener)5
=>
to play - good distribution hand 11-13 hcpAuction development whenr Opener rebids 1nt after Responder bids 1
Opener Responder 1 11nt <= 12-14 hcp - or 15 hcp with singleton in
- denies 5
cards ? pass => nothing to do 2
=> support
with 4+
and 6-9 hcp 2 => NMF – read
www.bridge.pro.br/nmf.htm after NMF the support in 3
become GF and search to Slamalso the bid of 3
is now GF showing 5-5
and 12+ hcp2 => 5-4+ sign-off 5-9
hcp - Opener must pass or correct2 =>
5+
cards 5-9 hcp sign-off 100%2nt => invitation 11 hcp 3 =>
4+cards
10-11 hcp invitation3 =>
6-4
sign-off for partnership that play WalshJxxx 8 KJxxxx
xx or
Axxx 7x Q10xxxxx
x3 =>
5-5 10-11 hcp –
Opener decide: pass/3
or bid game 3
=> 6 invitation 10-11 hcp
- Operner decide between pass or 43nt => to play 4 =>
GF
strong support in
interest in Slam asked for cuebid or 5
4 => 6-5+
with misfit and weakness Opener can pass in 4 4
=> 6-5+
Responde must choose the major4 =>
to play4ST => RKC for 5 =>
to play 4-5+
sign-off Note: if you do not play NMF and play check-back for a bidding: Opener Responder 1 11nt 2
is sign-off and shows 4-5+
6-9 hcp Auction development when Opener rebids 2
after Responder bids 1ntOpener Responder 1 1nt2
<= 6
- 12-15 hcp ? pass=> 6-8 hcp 2 => cuebid (A/KQx) 9-10 hcp with 3
cards - invitation 3nt or 5 2
=> cuebid (A/KQx)
9-10 hcp with 3
cards - invitation 3nt or 5
2 => cuebid (A/KQx) 9-10 hcp with 3
cards - invitation 3nt or 5 2nt => invitation showing stoppers in both majors and 9-10 hcp 3
=> 3+
weakness - afraid opponents reopen at level 2 - 6-8 hcpAuction development after Opener reverse in 2 after
Responder
1ntOpener Responder 1 1nt2 <= reverse
hand 16-21 hcp - forcing one round ? 2 => show
stopper in deny stopper
in 8-10 hcp 2 => show
stopper in deny stopper
in 8-10 hcp 2nt => confirm stopper in majors minimum 6-7 hcp 3
=> weak hand 6-7 hcp with 4
cards3 => weak hand 6-7 hcp
with 4 cards3nt => confirm stopper in majors and 8-10 hcp 5
=> to playAuction development after Opener reverse om 2 after Responder
1ntOpener Responder 1 1nt2 <=
reverse hand 16-21 hcp - forcing one round
? 2 => show stopper
in minimum 6-7 hcp2nt => deny stopper in
minimum 6-7 hcp3
=> 3+
minimum 6-7 hcp 3 => 3+
no stopper in but honors
in
and maximum 8-10 hcp3nt => confirm stopper in unbid suits and maximum 8-10 hcp 5
=> to playAuction development when Opener reverse in 2 after Responder
bids 1ntOpener Responder 1 1nt2 <=
reverse hand 16-21 hcp ? 2nt => confirm stopper in
minimum 6-8 hcp 3
=> 3+
denies stopper - minimum 6-8 hcp 3 => 3+
no stopper but with honors
in
and maximum 8-10 hcp3nt=> confirm good stopper in unbid suits and maximum 8-10 hcp 5
=> to play Auction development when Opener bids 1
and 2nt and Responder bids
1ntOpener Responder 1 1nt2nt <= 15-17 hcp possible both major and no stopper in pass => minimum 6-7 hcp and stopper in 3
=> 4
denies
stopper -
minimum 6-7 hcp 3nt => to play - maximum 8-10 with
stopper
Auction development when Opener rebids 3
after Responder bids
1ntOpener Responder 1 1nt3
<= 6+
and 16-18 hcp - Responder pass, make try for game, bid gamepass => weak hand 6-7 hcp 3 => shows
stopper in
want to know Opener stopper in major3 => shows
stopper in deny
stopper in has semi
stopper in 3 => shows
stopper in deny
stopper in has semi
stopper in 3nt => shows stoppers in majors and has semi stopper in
8-10 hcp5
=> to play (J10x J9x AKJ9
10xx)Auction development when Opener bids 3 /3
after Responder
bids 1ntOpener Responder 1 1nt3
<= 6+5
distributional hand - Responder with 6/7 hcp can pass or bid 4 3
<= 6+5
distributional hand -
Responder with 6/7 hcp can pass or bid 4 Note: Responder should consider Ace in other suit as a useful card but not a King, so useful cards are honors in suit bidded by opener. Thus, 3nt bid is unthinkable because Opener have a weak hand. So, with an Ace in an unbid suit, any 4 cards support in Clubs and a King in the major bidded by Opener Responder should try 5 .
Auction development when Opener bids 1
and 3nt
and Responder bids
1ntOpener Responder 1 1nt3nt <= 18-19 hcp possible both major pass => nothing to do Auction development when Opener bids 4
Berber after Responder
bids 1ntOpener Responder 1 1nt4
<= Gerber - special hand - final contract 5
or 6
depends on aces possible hands: AKQx x 9
AKQ10xxx
/x KQJ10 x
AKQ10xxxAuction development when Opener bids 1
Responder bids 2
Opener Responder 1
2
<= inverted minors
must be readAuction development when Opener bids 1
and Responder bids 2/2/2Opener Responder 1
2 <= weak 6
cards - less than 6 hcp1
2
<= weak 6 cards - less
than 6 hcp1
2 <= weak 6
cards - less than 6 hcpIn all this situation Opener need prudence and may stop the auction with pass, but if Opener has Hxxx or HHx (like AKx or AQx) support and 18-19 hcp there are hope in 3nt game considering 6 tricks in the weak suit and entries to finesse in other suit. When Opener has fit in the weak long suit - by agreement with partner - he may bid 2nt to search for a singleton in Responder hand. This permits better decision from Opener to decide to play in 3nt or in the major at level 4. Corrolary: whitout fit there are no hopeless - Opener should not try a fit in other suit, even with a 5-5 hand is prudent to pass with singleton because we should make decision based in statistical and in this case sometimes may work and in many times will not work. ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 OPENINGOpener Responder Responses after 1
open - no interference in the auction1 ?1 => 4+
cards 6+ hcp1 => 4+
cards 6+ hcp1nt => deny major 6-10- hcp and deny 5 cards 2 => 4+
cards and 12+ hcp 2 => 4+
cards and 10+ hcp - read inverted-minors 2 => 6+
cards weak - less than 6 hcpx QJ98xx 987 Jxx
Qx Q1098xx 9xJxxx K98xxxx xx Jxx 2 => 6+
cards weak - less than 6 hcpK98xxx x xxx JxxA98xxxx xx xx xx
Q1098xxx x xx Jxx 2nt => 11 hcp balanced hand - deny major - deny 5
cards- promise stopper in majors K108 A10x Q9x Q10xxQJ8 K10x Q10x K9xxQJ8 K98 1087 KQ109 3 => 6+
cards 8-11 points - special bid of 2/1 system with honorsconcentraded in Cçubs ( Q10x x xx AQJxxx) 3 => 5+
cards 5-9 hcp - read inverted-minors 3 /3 =>
5+ splinter
(singleton/void in the bided suit) 11-14 hcp -
GF3nt => balanced 16-17 hcp with 4
cards in 4333 or 4432KJ8 AQ K9x K10xx
or AQx KQ8 Q10x
KJxread 1minor-3nt 4 => Gerber ask for
aces (response 4=0/4, 4=1,
4=2, 4nt=3)4 => transfer to 4
no 2 aces : 8 KQJ109xx K7 109x
up to 10 hcp4 => transfer to 4
no 2 aces : QJ1098xxx9A710x
up to 10 hcp 4
=> transfer to 5 no 2
aces : Kx - J32 AK10987xx up
to 10 hcp 4nt => RKC for 5 => to play - 6/7 cards
support - deny aces or void 5 /5/5
=> exclusion RKC for (the
suit bided can't be counted for ace)Auction development when Opener rebids 1 after Responder bids 1
Opener Responder 1 11 ?pass => deny 4
or 4
cards and shows weak hand 5-8 hcp1nt => 6-10 hcp should have stopper in
sign-off2
=>
the 4º suit ask for explanation - need 10+
hcp and 5
cardsOpener bids: 2
with 3 cards and no top
honor (A/K/Q)3
with 3 cards and one or
more top honors2
with weak hand 11-13 hcp and 6-5
or 7-5 2nt with stopper in
and deny support in 3
with 5
cards and no stopper in
and no support in 3nt with 14 hcp and 1,5 stopper in
possible singleton Responder after 4º suit may support Opener in one of his suits (
or ) makes the bidding
GF and in a cooperative way try nowsearch for Slam, but if Responder rebids his suit showing 6
allowsthat Opener pass with singleton if Opener is limited at 14 hcp. 2
=>
support 4+ 6-9 hcp sign-off 2 => Responder rebids is sign-off
5-9
hcp
(Jx QJ987 Jxxxx x) 2
=>
support 4 cards 6-9 hcp2nt => 10+-11 hcp with
stopper - invitation to 3nt3
=>
5-5
invitation Opener may pass in 3
in misfit/weakness 3
=>
invitation 10+-11 hcp support 4+
cards - could have 53
=>
invitation 6 cards
10-11 hcp - Opener can pass with singleton3
=>
invitation with 4 cards
10-11 hcp - Opener can pass 3nt => to play 4
=>
GF - splinter with 4
cards
support and 13-16 hcp, asks forcuebid or sign-off in 4 4 =>
GF –
strong support in
– Slam interest - asks for cuebid or 5
4
=>
to play 7/8 cards4
=>
to-play -4 cards 11-13 hcp
- good distribution 4ST=> RKC for
(last suit bid by Opener)5
=>
exclusion RKC for
with void in
Exclusion in 5
then rkc: step1=5;
step2=5; step3=5nt;
step4=65
=>
to play - good distribution hand with 5+
cards 11-13 hcpAuction development when Opener rebids 1nt after Responder bids 1
Opener Responder 1 11nt ? pass=> denies 4
cards and shows weak hand 5-8 hcp2
=>
NMF - vide explanation in www.bridge.pro.br/nmf.htm 2
=>
support 4+ 6-9 hcp sign-off2
=>
sign-off (Responde rebids his suit is sign-off) 5-9 hcp2
=>
5-4
GF - 12+ hcp - ask for 3
cards
support,Opener with good stop in
and no support may bid 3nt, but without stopper in
and no support in Opener
should rebid his Diamonds or with Spades honors bids 3 2nt => 11 hcp with
stopper - invitation to 3nt3
=>
5-5
10-11 Opener may pass
in misfit case or weakness3
=>
4+ 10+-11 hcp support 4+
cards - could have 53
=> 6 cards
10-11 hcp Opener pass with singleton3
=>
6-5
GF distributional hand 3nt => to play 4
=>
Gerber - strong hand and possible good support in
or solid
4 =>
GF –
strong support in
– Slam interesti- ask for cuebid or 5
4
=>
to play 7/8 cards4
=>
spliinter - support in
- Opener can ask RKC or sign-off
in 5
4nt => RKC for
5
=>
exclusion RKC for
with void in
When exclusion is made in 5
then step1=5;
step2=5; step3=5;
step4=5nt
5
=>
to play - good distribution hand with 5+
cards 11-13 hcpAuction development whenr Opener rebids 1nt after Responder bids 1
Opener Responder 1 11nt <= 12-14 hcp - or 15 hcp with singleton in
- denies 6
cards ? pass=> nothing to do 2 => NMF – read
www.bridge.pro.br/nmf.htm after NMF the support in 3
become FG and search to Slamalso the bid of 3
is now FG showing 5-5
and 12+ hcp2 => support
with 4+
and 6-9 hcp - sign-off2 => 5-4+ sign-off -
pass or correct - do not support2 =>
5+
cards 5-9 hcp sign-off 2nt => invitation 11 hcp 3 => 5-5 10-11 hcp –
invitation - Opener decide: pass/3
or game3 =>
4+cards
10-11 hcp invitation3 =>
5-5 invitation 10-11 hcp –
Opener decide: pass/3
or game 3
=> 6 invitation 10-11 hcp
- Operner decide between pass or 43nt => to play 4 =>
GF –
strong support in
interest in Slam cuebid or 5
sign-off4 => 6-5+
with misfit and weakness Opener can pass in 4 4
=> 6-5+
Opener must choose the major4 =>
to play4ST => RKC for 5 =>
to play 4-5+
sign-off Auction development when Opener rebids 2 after Responder
bids 1ntOpener Responder 1 1nt2
<= 12-16 hcp ? pass=> 4
and minimum 6-8 hcp2 => 4
minimum 6-8 hcp 2nt => confirm stopper in majors maximum 9-10 hcp 3
=> 5
and maximum 9-10 hcp3 => 4
and maximum 9-10 hcp Auction development when Opener rebids 2
after Responder bids 1ntOpener Responder 1 1nt2
<= 6
cards and 12-16 hcp ? pass=> 6-7 hcp 2
=> cuebid (A/KQx)
9-10 hcp 3+
cards - invitation 3nt or 5
2 => cuebid (A/KQx) 9-10 hcp 3+
cards - invitation 3nt or 5
2nt => invitation showing stoppers in both majors and 9-10 hcp 3
=> 3+ 5-8 hcp
and afraid opponents reopen at level 2 in a major Auction development when Opener reverse 2 after Responder
bids 1ntOpener Responder 1 1nt2 <=
reverse hand 16-21 hcp - one-round force
? 2 => shows stopper
in minimum 6-8 hcp2nt => deny stopper in
minimum 6-8 hcp3
=> 5+
minimum 6-8 hcp 3 => 3+
no stopper in but honor
in
and maximum 9-10 hcp3nt=> confirm stopper in unbid suits and 9-10 hcp Auction development when Opener reverse 2 after Responder
bids
1ntOpener Responder 1 1nt2
?2nt => confirm stopper in
minimum 6-7 hcp 3
=> 5+
cards minimum 6-8 hcp 3 => 3+
no stopper in but honors
in
with maximum 8-10 hcp3nt => confirm stopper in unbid suits and 8-10 hcp Auction development when Opener rebids 2nt after Responder bids 1nt Opener Responder 1 1nt2nt <= 15-17 hcp possible both major and shorter in pass => minimum 6-7 hcp 3nt => to play - maximum 8-10 with stopper in
Auction development when Opener rebids 3
after Responder bids
1ntOpener Responder 1 1nt3
<= 6+ and 16-18 hcp -
Responder pass or make try for gamepass => weak hand 6-7 hcp 3 => show
stopper in but deny
stopper in have semi
stopper in
3 => show
stopper in but deny
stopper in have semi
stopper in
3nt => show stopper in majors and have semi stopper in
8-10 hcp5 => to play (J10x J9x Jxx
AK109)Auction development when Opener shows 6/5 distribution bidding a major at level 3 after Responder bids 1nt Opener Responder 1 1nt3
<= 6+5
distributional hand - Responder with 6/7 hcp pass or bid 43
<= 6+5
distributional hand -
Responder with 6/7 hcp pass or bid 4Note: Responder should consider Ace in other suit as a useful card but not but a King, so useful cards are honors in the suits bided by opener. Thus, the bid of 3nt is unthinkable because Opener have a weak hand. So with an Ace in the unbided suit, any 4 cards support in Diamonds and a King in the major bidded by Opener Responder should try 5 .
Auction development when Opener jump to 3nt after Responder bids 1nt Opener Responder 1 1nt3nt <= 18-19 hcp possible both major pass => nothing to do Auction development when Opener asked for aces after Responder bids 1nt Opener Responder 1 1nt4
<= Gerber - special hand - final contract 5
or 6
depends on aces (possible hands: AKQx x AKQ10xxx
x
/ x KQJ10 AKQ10xxx
x)Opener Responder 1
2
=> GF - 12+ hcp => read 1d-pass-2c-GF.htmAuction development when Opener bids 1
and Responder bids 2
Opener Responder 1
2 => 4+
10+ hcp - need read => inverted-minorsAuction development when Opener bids 1
and Responder bids 2/2Opener Responder 1
2
<= weak 6 cards - less
than 6 hcp1
2 <= weak 6
cards - less than 6 hcp In both situations Opener need prudence and may stop the auction with pass, but if Opener have 4 cards support and 18-19 hcp there are hope in 3nt game considering 6 tricks in the weak suit and entries to finesse in other suit. In fact Opener having fit may search for a singleton in Responder's hand bidding 2nt (after agreement with partner) and if Responder has no singleton he rebids his suit. This allows better decision from Opener in play 3nt or in a major at level 4. Corrolary: whitout fit there are no hopeless so Opener should not try a fit in other suit, even with 5-5 hand, it is prudent pass with singleton considering that bridge is played for better probability. / / / |