In Two Over One Game Force System the opening
in 1/1
is
made with 5+ cards in a range of 12-21 hcp (high cards points).
Include in this opening we have some popular conventions integraded:
1- Jacoby 2nt as game force (GF) response for no
passed hand;
2- Bergen raises responses showing support with 4+ cards
- non passed hand;
3- RKB (0314/1430), Josephine and exclusion RKB asking
for keycards; Note: Roman Keycard Blackwood = RKB using Kantar's notation
4- Splinters showing 4+ cards support with singleton/void in
the bidded suit;
Rule#1: INVERTED NT -it is a strategic way to avoid the difficult in the
rebid by Opener with hands 4522
after 1
opening. This convention swiches the response of 1nt (5-11 hcp) for one spades.
And 1 nt in response to 1
opening
shows 5+
cards. So the bid of
1
after 1
opening denies 5+
cards spades but may have
up to 4 cards spades (may have 0, 1, 2, 3 or 4 cards spades) and
it is the traditional response of 1nt limited at 11 hcp.
This is called inverted nt and resolve the same problem that
Flannery system try to eliminate in rebid 1
with only 5 cards or rebid 2
with only 2 cards when Opener
has
4522.
Of course after Response 1
Opener having Spades suit must bid 1nt to show
the possession of 4
cards.
An advantage is this convention is that Opener after response of 1nt (5+)
with 3+
bids 2
or 3
or 4
to the strong hands play.
The disadvantage occurs when interference is made in a minor suit after
1
was bid
showing up to 4 cards Spades, because now Opener can't bid 2
with a limited hand in 12-15 hcp. So only with 9-11 hcp Responder may rebid
2
to clarify his hand.
Of course this aproach is better than lose the weak 2
opening as Flannery do.
Opener Responder
1
1nt <= 5+
cards
Opener Responder
1
1
<= denies 5
cards
this eliminates the need to use Flannery 2
to show 4
5
x
x
Read
1nt forcing and inverted.
===========================================
1
OPENING with no interference (read interference1
here)
Opener Responder
1
?
pass=>
less than 6 hcp and no 4+ cards fit
1nt =>
5-11 hcp - read 1nt forcing and inverted
2
=> 4+
cards 12+ hcp GF unless big misfit is found
2
=> 4+
cards 12+ hcp GF unless big misfit is found
2
=> 5+
cards 12+ hcp GF unless big misfit is foung
2
=> 6-9 hcp with only 3 cards support
2nt =>
Jacoby
2nt - GF - 4+
cards 12-16 hcp asks for singleton
3
=> Bergen raises - 4
cards support 7-9 points
3
=> Bergen raises - 4
cards 10-11 points
3
=> good suit 6+
cards 8-10 hcp invitation to game in
3
=> Bergen raises - 4
cards 2-6 hcp weak hand
3nt =>
balanced hand with 3
cards and 16-17 hcp
read what to do after 1major - 3nt
4
=> splinter 4+
cards - singleton/void in
10-14
hcp
4
=> splinter 4+
cards - singleton/void in
10-14
hcp
4
=> splinter 4+
cards - singleton/void in
10-14
hcp
4
=> bergen raises - 5+
cards 2-8 points weak hand
4nt =>
Blackwood for aces
5/5/5
=> exclusion RKB for
with void in the suit bidded
5
=> Josephine convention: pass with only one top honor,
bid 6
with 2 top honors and bid 7
with
AKQ
5nt
=> bid 7
with 2 top honors or bid 6
Opener second bid after response 1nt
Opener Responder
1 1nt <=5-11 hcp
Responder may have the follows second bids:
- with 3
and 10-11 hcp bids 3
invitation in his next bid;
- with 6-9
hcp balanced hand and only 2 cards in Opener suit wait
to Opener's second bid to decide between bid 2
or to prefer
the second Opener's suit;
- with a long suit 6/7 cards and without support to Opener's
second
suit then bids his long suit at level 2 or 3:
- If
Responder have 7+
good cards must bid first 1nt then 4
- with a balanced hand with 10-11 hcp and without support
Opener's
second suit bids 2nt or support Opener's second suit if hand fits.
?
2
=> 3+
cards - 12-17 hcp
2
=> 3+
cards - 12-17 hcp
2
=> 4+
cards - 12-17 hcp
2
=> 6+
cards - 12-15 hcp
2nt => GF 18-20 points - read GFhand
possible distribution: 54xx 6xxx 7xxx denies 55xx
3
=> 5+5
GF - 18-20 points - read GFhand
3
=> 5+5
GF - 18-20 points
3
=> 5+5
GF - 18-20 points
3
=> 6+
16-17 hcp invitation for
4 asking
for 8+ hcp and 2
cards
3nt => 5332 with 18-19 hcp (Responder bids 4/4/4
are sign-off)
4
=> 6-5+
distributional hand - up to 16 hcp
4
=> 6-5+
distributional hand - up to 16 hcp
4
=> 6-5+
distributional hand - up to 16 hcp
4
=> 7+
cards solid suit up to 16 hcp
4nt => RKB1430 for Spades - special hand
with solid Spades
Opener second bid after 2
GF
Opener Responder
1
2 <=
GF 4+ cards
- 12+ hcp
?
2
<= possible 4+
cards 12-15 hcp
2 <= 4+
cards - 12-15 hcp
2 <= possible 6
or 5
5332 cards up to 15 hcp (with 16+ bid 2nt)
2nt <= good hand 16+ hcp undefined distribution - may has
6
cards
3
<= 4+
cards support deny singleton 12-15 hcp
3
<= mini splinter 4+
cards support and singleton/void in
3
<= mini splinter 4+
cards support and singleton/void in
3
<= solid Spades suit AKQJxx or AKQxxxx not strong hand
3nt <= 5332 Fast Arrive Principle - weak hand 13-15 hcp with stoppers
in
unbid suits and 2 cards in Clubs
4
<= strong support in
with 16+ hcp - (Responder 4
or RKB0314)
4
<= 6-5+
distributional hand - not strong
4
<= 6-5+
distributional hand - not strong
4
<= 7+
cards and weak hand (QJ109xxx
Axx
Axx
-)
4nt <= RKB for Clubs (take charge to try Slam - special hand)
5
<= exclusion RKB for
with void in
5
<= exclusion RKB for
with void in
5nt <= Grand Slan Forcing: ask to Responder bid 6
with only one top honor
or 7
with 2 top honors
Opener second bid after 2
GF
Opener Responder
1
2 <=
GF 4+
12+hcp
?
2 <= 4+
cards
2 <= possible 6
or 54 cards - limited 12-15 hcp
2nt <= good hand 16-21 hcp - undefined distribution
3
<= 5-4+
16+ pontos
3
<= 5-4+
limited 12-15 hcp
3
<= mini splinter 4+
cards support and singleton/void in
3
<= solid Spades suit AKQJxx or AKQxxxx not strong hand
3nt <= 5332 fast arrive bid - weak hand and stopper in unbid suits
4
<= mini splinter 4+
cards support and singleton or void in
4
<= strong support in Diamonds - 16+ hcp (Responder 4
is RKB)
4
<= 6-5+
distributional hand - not strong
4
<= 7+
cards and weak hand (QJ109xxx
Axx
-
Axx)
4nt <= RKB for
(take charge to try Slam - special hand)
5
<= exclusion RKB for
with void in
5
<= exclusion RKB for
with void in
5nt <= bid 6
with only one top honor or bid 7
with 2 top honors
Opener second bid after response 2
GF
Opener Responder
1
2 <=
GF
promise 5+
cards
12+ hcp
?
2 <= possible 6
or 54
or 54
or
5332 cards up to 15 hcp
2nt <= good hand 16-21 hcp - undefined distribution
3
<= 5-4+
cards
16+ pontos
3
<= 5-4+
cards 16+ pontos
3
<= 3+
cards support - more strong than jump to 4
3
<= solid Spades suit AKQJxx or AKQxxxx not strong hand
3nt <= 5332 fast arrive bid - weak hand and stopper in unbid suits
4
<= splinter with 4+
cards support - singleton or void in
4
<= splinter with 4+
cards support - singleton or void in
4
<= 3+
cards support - fast arrive - weak hand 12-14 hcp
4
<= 7+
cards and weak hand (QJ109xxx
x
Ax
Axx)
4nt <= RKB for
(take charge to try Slam - special hand)
5
<= exclusion RKB for
with void in
5
<= exclusion RKB for
with void in
5
<= Josephine convention: pass with only one top honor,
bid 6
with 2 top honors and bid 7
with 3 top honors
5nt <= bid 6
with onle one top honor or bid 7
with 2 top honors
Opener second bid after response 2
Opener Responder
1
2 <= 6-9 hcp -
with 3
cards
?
2nt => trial bid - 16/17 hcp in 5332 - Responder decide (3/3nt/4)
3
=> trial bid - asking for maximum 8-9 hcp and A/K
to bid game
3
=> trial bid - asking for maximum 8-9 hcp and A/K
to bid game
3
=> trial bid - asking for maximum 8-9 hcp and A/K
to bid game
3
=> 6 and
weak hand - preemptive bid - Responder need pass
3nt => 18-19 hcp in 5332 - Responder decide - balanced then pass
4
=> to play
Opener second bid after response in 2nt Jacoby - GF
Opener Responder
1 2nt <=
4+ cards
12-16 hcp no singleton read Jacoby 2nt
?
3/3/3 <=
singleton or void - undefined Opener's hand strength
3
<= 17-20 hcp - asking for cuebid
3nt <= 15-16 hcp - balanced hand
4
<= 5-5
cards with 2 top honors in Clubs 14-16 hcp
4
<= 5-5
cards with 2 top honors in Diamonds 14-16 hcp
4
<= 5-5
cards with 2 top honors in Hearts 14-16 hcp
4
<= to play 12-14 hcp weak hand (QJ109x
Q10x
Ax
Axx)
4nt <= RKC for Spades
5
<= exclusion RKB for
with void in
5
<= exclusion RKB for
with void in
5
<= exclusion RKB for
with void in
5
<= Josephine convention: with only one top honor pass,
with 2 top honors bid 6
and with 3 top honors bid 7
5nt <= with 2 top honors bid 7
else bid 6
Opener second bid after response in 3
Bergen - read Bergen raises
Opener Responder
1
3 <=
bergen raises - 4
cards and 7-9 hcp
?
3
<= trial bid - Responder bids 4
with maximum and 3
with minimum
3
<= trial bid - Responder with A
or k or
singleton
bids 4
3
<= sign-off
3nt <= to play - strong hand 18-19 hcp Responder pass with 4333
4
<= to play - strong hand
Opener second bid after response in 3
Bergen invitation - read Bergen raises
Opener Responder
1
3 <=
bergen raises - 4
cards and 10-11 hcp - balanced
?
3
<= trial bid - Responder bids 4
with maximum and 3
with minimum
3
<= sign-off bad hand opening possible 5332 with 12-13 hcp
3nt <= to play - strong hand 18-19 hcp - Responder pass with
4333
4
<= cuebid - Responder must bid his red ace if has one
4
<= cuebid - Responder with A
bids 4
or sign-off in 4
4
<= to play
4nt <= RKB for Spades
5
<= Josephine convention: with only one top honor pass,
with 2 top honors bid 6
and with 3 top honors bid 7
5nt <= with 2 top honors bid 7
else bid 6
Opener second bid after response in 3
invitation for 4
Opener Responder
1
3 <=
6+ cards
8-10 hcp - invitation for 4
?
pass <= misfit hand and minimum
3
<= sign-off
3nt <= to play - AKxxx
Axx
Kx
QJx
- 9 tricks more easy
4
<= good hand with support in
- cuebid asking for
cuebid
4
<= good hand with support in
- cuebid in
denying
control
4
<= to play - support in
4
<= to play - strong hand with solid Spades
4nt <= RKB for Hearts
5
<= Josephine convention: with only one top honor pass,
with 2 top honors bid 6
and with 3 top honors bid 7
5nt <= with 2 top honors bid 7
else bid 6
Opener second bid after response in 3
Bergen preemptive - read Bergen
Opener Responder
1
3
<=
bergen raises - 4
cards and 2-6 hcp
?
pass <= no game possible
4
<= to play
Opener second bid after response in 3nt
Opener Responder
1
3nt <=
balanced with 3
and 16-17 hcp
Note: after this information Opener can:
- pass with minimum and balanced hand;
- sign-off in 4
with minimum but unbalanced hand;
- take charge and try Slam bidding 4nt0314 (Responde is strong hand);
- inform his hand with 4 steps:
step1 = 2 with (2 aces + 2 kings + Queen) => 4
step2 = 3 without (3 aces + 1 king) => 4
step3 = 3 with (3 aces + 1 king + Queen) => 4
step4 = 4 without (any 4 keycards) => 5
After this Responder must decide and any suit bided is SSA
?
pass <= also balanced and minimum
4
<= Opener shows his hand: any 2A+2K with Queen
4
<= Opener shows his hand: any 3A+1K no Queen
4
<= Opener shows his hand: any 3A+1K with Queen
4
<= to play
4nt <= RKB0314 take charge to try Slam (Responde is the strong hand)
5 <= Opener shows his hand: 4 keycards no Queen
5nt <= Grand Slam Forcing : ask 2 top honor to bid 7
6
<= to play
Opener second bid after response in 4
- read splinter
Opener Responder
1
4 <=
splinter - 10-14 hcp singleton/void in
?
4
<= cuebid (A)
shows from Opener interest in Slam.
Responder with A or KQ in Hearts must cuebid 4
4
<= cuebid (A)
shows from Opener interest in Slam denying A .
4
<= to play
4nt <= RKB1430 for Spades
5
<= Josephine convention: with only one top honor pass,
with 2 top honors bid 6
and with 3 top honors bid 7
5nt <= with 2 top honors bid 7
else bid 6
6
<= to play
Opener second bid after response in 4
- read splinter
Opener Responder
1
4 <=
splinter - 10-14 hcp singleton/void in
?
4
<= cue bid (A)
shows from Opener interest in Slam.
4
<= to play
4nt <= RKB for Spades
5
<= Josephine convention: with only one top honor pass,
with 2 top honors bid 6
and with 3 top honors bid 7
5nt <= with 2 top honors bid 7
else bid 6
6 <= to play
Opener second bid after response in 4
- read splinter
Opener Responder
1
4 <=
splinter - 10-14 hcp singleton/void in
?
4
<= to play
4nt <= RKB for Spades
5
<= Josephine convention: with only one top honor pass,
with 2 top honors bid 6
and with 3 top honors bid 7
5nt <= with 2 top honors bid 7
else bid 6
6
<= to play
++++++++++++++++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++++++++++
1
OPENING
Opener Responder
1
?
pass=>
less than 6 hcp and no 4+ cards fit
1 =>
5-11 hcp - up to 4
cards - read 1nt forcing and inverted
can have 1/2/3/4
and then Opener second bid in
1nt means 5-4
with 12-15 hcp and 2
with 16-17 hcp
1nt => 5+
cards
2
=> 4+
cards 12+ hcp GF
2
=> 4+
cards 12+ hcp GF
2
=> 3
cards 6-9 hcp
2
=> 6+
cards weak less than 6 hcp - sign-off
2nt =>
Jacoby
2nt - GF - 4+
cards 12-16 hcp - read jacoby
3
=> Bergen raises - 4
cards 7-9 hcp - read Bergen
3
=> Bergen raises - 4
cards 10-11 hcp
3
=> Bergen raises - 4+
cards 2-6 hcp weak hand
3
=> splinter - 4+
cards - singleton/void in
10-14 hcp
3nt
=> balanced hand with 3
cards and
16-17 hcp
read what to do after 1major response 3nt
4
=> splinter - 4+
cards - singleton/void in
10-14
hcp
4
=> splinter - 4+
cards - singleton/void in
10-14
hcp
4
=> bergen raises - 5+
cards 2-6 hcp weak hand
4
=> to play 7/8 cards (KQ1097654
x
KJ9
x
4nt =>
Blackwood for aces
5/5/5
=> exclusion RKB for with void in the suit bidded
5
=> Josephine convention: pass with only one top honor,
bid 6
with 2 top honors and bid 7
with AKQ
5nt
=> bid 6
with only 1 top honor /bid 7
with 2 top honor
Opener second bid after response in 1
Opener Responder
1
1
<=5-11 hcp - inverted nt - up to 4
cards means can have
3/2/1
cards - may have 3
cards with 10-11 hcp
?
1nt => 5-4
- 12-15 hcp - Responder with both minors can pass
2
=> can be 3+
cards - 12-17 hcp
2
=> can be 3+
cards - 12-17 hcp
2
=> 6+
cards - 12-15 hcp
2
=> 5-4+
cards - 16-20 hcp reverse read Leb-reverse
2nt => GF - 18-19 hcp - read 1nt forcing and
inverted
possible distribution: 54xx 6xxx denies 55xx distribution
3
=> 5+5
GF - 18-21 hcp
3
=> 5+5
GF - 18-21 hcp
3
=> 6+
cards 16-17 hcp asks for 2 cards support and 8+ hcp to 4
3
=> 6-5
distributional hand maybe 6520 or 6511
3nt => 5332- with 18-19 hcp (Responder bids 4/4/4
are sign-off)
4
=> 6+5
distributional hand - up to 16 hcp
4
=> 6+5
distributional hand - up to 16 hcp
4
=> 7+
cards solid suit up to 16 hcp
4nt => RKB1430 for
-
special hand with solid Hearts suit
Opener second bid after response in 1nt
Opener Responder
1
1nt <= 5+
cards 6+ hcp
2
=> can be 3
cards - 12-17 hcp (deny 3
cards)
2
=> can be 3
cards - 12-17 hcp (deny 3
cards)
2
=> 6+
cards 12-15 hcp
2
=> 3+
cards 12-15 hcp
2nt => GF - 18-19 hcp - read 1nt forcing and
inverted
possible distribution: 54xx 6xxx deny 55xx
3
=> 5+5
GF - 18-21 hcp
3
=> 5+5
GF - 18-21 hcp
3
=> 6+
cards 16-17 hcp
3
=> 5-4
16-17 hcp
3nt => to play 18-19 hcp - 5332 distribution
4
=> self-splinter - singleton/void in
- good
7/8
cards 16-17 hcp
asking for cuebid in 4
or sign-off in 4
4
=> self-splinter - singleton/void in
- good
7/8
cards 16-17 hcp
4
=> 7
cards good suit and probable 2+ aces
4
=> 5-4
18-21 hcp in 5422 distribution
4nt => RKB1430 for
5
<= exclusion RKB for
with void in
5
<= exclusion RKB for
with void in
Opener second bid after 2
GF
Opener Responder
1
2 <=
GF
3+ cards
- 12+ hcp
?
2
<= possible 4+
cards 12-15 hcp
2
<= possible 6
cards or 5
cards in 5332 - 12-15 hcp
2 <=
5-4
reverse hand 16-21 hcp - read Leb reverse
2nt <= good hand 16-21 hcp undefined distribution - may have
6
cards
3
<= 5-4+
cards 12-15 hcp
3
<= splinter 4+
cards support and singleton/void
with 12-15 hcp
3
<= solid Hearts suit AKQJxx or AKQxxxx not strong
3
<= 6-5
distributional hand - not strong - 12-15 hcp
3nt <= 5332 - fast arrive bid - weak hand with stopper in unbid suits
4
<= 5-4+
strong support in Clubs with 16+ hcp - asking for cuebid -
4
<= 6-5+
distributional hand - not strong
4
<= 7+
cards and weak hand (K9x
AQJ10xxx
Axx
-)
4
<= splinter singleton/void
with 4+
support 12-15 hcp
4nt <= RKB1430 for Clubs
5
<= exclusion RKB1430 for
with void in
5
<= exclusion RKB1430 for
with void in
5nt <= with 2 top honors bid 7
else bid 6
Opener second bid after 2
GF
Opener Responder
1
2 <=
GF
3+ cards
- 12+ hcp
?
2
<= possible 6
cards or 5
cards in 5332 - 12-15 hcp
2 <=
5-4
reverse hand 16-21 hcp
2nt <= good 16-21 hcp undefined distribution - may have
6
cards
3
<= 5-4+
cards 15+ hcp
3
<= 5-4+
cards support - 12-15 hcp
3
<= solid Hearts suit AKQJxx or AKQxxxx not strong
3
<= 6-5
distributional hand not strong - 12-15 hcp
3nt <= 5332 fast arrive bid - weak hand with stopper in unbid suits
4
<= mini splint - singleton/void
with 4
cards support
- 12-15 hcp
4
<= 5+-5
strong support in
16+ hcp
4
<= 7+
cards and weak hand (K9x
AQJ10xxx
Axx
-)
4
<= splinter singleton/void
with 4+
support 12-15 hcp
4nt <= RKC1430 for Diamonds
5
<= exclusion RKC1430 for
with void in -
need agreement
5
<= exclusion RKC1430 for
with void in
5nt <= with 2 top honors in
bid 7
else bid 6
Opener second bid after response 2
GF
Opener Responder
1
2 <=6-9 hcp -
with 3
cards
?
2
=> trial bid - asking for maximum and A
or K
to bid game
2nt => trial bid - 16/17 hcp in 5332 - Responder decide (3/3nt/4)
3
=> trial bid - asking for maximum and A
or K
to bid game
3
=> trial bid - asking for maximum and A
or K
to bid game
3
=> 6
cards and weak hand - preemptive - Responder must pass
3nt => 18-19 hcp 5332 - Responder decide - with any singleton => 4
4
=> to play
Opener second bid after response in 2nt Jacoby - GF
Opener Responder
1 2nt <=
4+ cards
12-16 hcp no singleton read Jacoby 2nt
?
3/3/3 <=
singleton or void - undefined Opener's hand strength
3
<= 17-20 hcp - asking for cuebid
3nt <= 15-16 hcp - balanced hand
4
<= 5-5
cards with 2 top honors in Clubs 14-16 hcp
4
<= 5-5
cards with 2 top honors in Diamonds 14-16 hcp
4
<= to play 12-14 hcp weak hand (QJx
QJ10xx
Ax
Axx)
4nt <= RKC1430 for
5
<= exclusion RKB1430 for
with void in
5
<= exclusion RKB1430 for
with void in
5
<= exclusion RKB1430 for
with void in
5
<= Josephine convention: pass with only one top honor,
bid 6
with 2 top honors and bid 7
with AKQ
5nt <= bid 7
with 2 top honors else bid 6
Opener second bid after response in 3
Bergen - read Bergen
Opener Responder
1
3 <=
bergen raises - 4
cards support and 7-9 hcp
?
3
<= trial bid - ask to Responder bids 4
with maximum (A+K or 2A)
3
<= sign-off
3nt <= to play - strong hand 18-19 hcp Responder pass with 4333
4 <= to play strong hand
Opener second bid after response in 3
Bergen invitation - read Bergen
Opener Responder
1
3 <=
bergen raises - 4
cards and 10-11 hcp
?
3nt <= to play - strong hand 18-19 hcp - Responder pass with
4333
4 <= cuebid - asking if Responder has A
or KQ if
not 4
4 <= cuebid - Responder with A
bids 5
or without sign-off in 4
4
<= to play
4nt <= RKC1430 for Hearts
5 <= Josephine convention: pass with only one top honor,
bid 6
with 2 top honors and bid 7
with AKQ
5nt <= bid 7
with 2 top honors else bid 6
Opener second bid after response in 3
Bergen preemptive - read Bergen
Opener Responder
1
3
<=
bergen raises - 4
cards and 2-6 hcp
?
pass <= no game possible
4
<= to play
Opener second bid after response in 3nt
Opener Responder
1
3nt <=
balanced with 3
and 16-17 hcp
?
Note: after this information Opener can:
- pass with minimum and balanced hand;
- sign-off in 4
with minimum but unbalanced hand;
- take charge and try Slam bidding 4nt0314 (Responde is strong hand);
- inform his hand with 4 steps:
step1 = 2 with (2 aces + 2 kings + Queen) => 4
step2 = 3 without (3 aces + 1 king) => 4
step3 = 3 with (3 aces + 1 king + Queen) => 4
step4 = 4 without (any 4 keycards) => 5
After this Responder must decide and any suit bided is SSA
?
pass <= also balanced and minimum
4
<= any 2 aces and any 2 kings with Queen
4
<= any 3 aces and and any 1 king without Queen
4
<= to play
4
<= any 3 aces and and any 1 king with Queen
4nt <= RKB0314 take charge to try Slam (Responder is the strong hand)
5
<= any 4 keycards without the Queen
5nt <= Grand Slam Forcing : ask 2 top honor to bid 7
6
<= to play
Opener second bid after response in 4
- read splinter
Opener Responder
1
4 <=
splinter - 12-17 points and singleton/void in
?
4
<= Opener ahows his hand: any 2A+2K with Queen
4
<= to play - sign-off - splinter does not fits
4
<= Opener shows his hand: any 3A+1K no Queen - splinter fits
4nt <= RKB for taking
charge - splinter fits
5
<= Opener shows his hand: any 3A+1K with Queen - splinter fits
5
<= Opener shows his hand: 4 keycards no Queen - splinter fits
6
<= to play
5
<= Josephine convention: pass with only one top honor,
bid 6
with 2 top honors and bid 7
with AKQ
5nt <= bid 7
with 2 top honors else bid 6
Opener second bid after response in 4
- read splinter
Opener Responder
1
4 <=
splinter - 10-14 hcp singleton/void in
?
4
<= to play
4nt <= RKB for
6
<= to play
5
<= Josephine convention: pass with only one top honor,
bid 6
with 2 top honors and bid 7
with AKQ
5nt <= bid 7
with 2 top honors else bid 6
Opener second bid after response in 4
- read splinter
Opener Responder
1
4 <=
Bergen raises - 5+
with 2-6 hcp
?
pass
4nt <= RKB fo Hearts
6 <= to play
/ / /