DEFENSIVE & COMPETITIVE BIDDING
OVERCALLS (Style; Responses; 1/2 level; Reopening)
Style: 1 level OC usually relatively sound, Occ light
Responses: Jump raise PRE, Jump Q = mixed raise,
After 1x New suit at 1 or 2 level NF, Jump shift F1 by UPH,
After 2x/3x New suit = F1 if no COMP; Jumps = Fit by PH
Over NEG DDBL of 1M: RDBL=2M/8+; 2NT=4T L/R;
Auctions like 1
-1-2 -3 are NF;
Reopening: 2x still looks like a real overcall
1NT OVERCALL (2
nd
/4
th
live; Responses; Reopening)
Immediate:
15-18
Responses: As over 1NT opening
Balancing:
11-16, 2
asks
range, 2♦, 2♥, 2♠ = 11-13+ and
2nt = 14-16; 2R=TFR M; 2♠=TFR ♣, 2NT=TFR ♦
JUMP OVERCALLS (Style; Responses; Unusual NT)
Style:
Sound except at Favorable
Responses: 2NT = Game Try, Asks for Singleton or good suit
Unusual NT: Lowest 2 unbid suits
Reopening: Jump overcall INTER, 2NT = 19-20
DIRECT & JUMP CUE BIDS (Style; Responses; Reopen)
Style: 1m-2m = ♥+♠, Weak or Strong (Else bid 1♠); 1M-
(2M)=OM+m; Then 2NT = asks m, 3 =INV M, 3♣ = Nat,
2NT then 3♦ = to play
1M-(3M) stop ask; 1m(short): 2/3m=NAT; 1♣-2♦ = M’s
Reopening: Jump cue asks stop, cue=strong two-suiter
VS. NT (vs. Strong / Weak; Reopening; PH)
Vs WK and vs STR: DBL = PEN; 2
= M’s: 2 INQ
longer; 2NT=NAT, 3M=”Mixed”; 3
/3 NAT; 2 = ♥; 2♥
= ♠; (then 2NT = good canapé); 2♠ = Good 2♠ overcall; 3m =
NAT; 2NT = minors
Reopening: Same
Vs PREEMPTS
T/O DBL thru 4♠, LEB after (2M)-DBL-(P) – UPH (NOTE 6)
(2M)-4m = 5+m + OM, NF; (2 )-4
=5+/5+M (6RKC)
(2M)-3M asks stopper (very strong 1- suiter)
VS ARTIFICIAL STRONG OPENINGS
DBL = Majors, NT = minors
OVER OPPONENTS´ TAKEOUT DOUBLE
2NT = L/R; jumps=PRE; Pass-then-DBL = unilateral PEN:
1M –DBL-1NT+ = TFRs; 3♦ = Mixed; 3NT=good PRE 4M;
1m-DBL-3m = Mixed
LEADS AND SIGNALS
OPENING LEADS STYLE
Lead
In
Partner’s
Suit
Suit 3
rd
/ Even, Low / Odd
Low from odd if raised
NT 4
th
3rd
Subs. Attitude
Attitude
LEADS
Lead
Vs Suit
Vs NT
Ace
AKx+, short or long ace
Asks Attitude
King
AKx+ (CT sitns), KQx
Asks Unblock or Count
Queen QJx,
AKQ
KQ
(10)x, Asks Attitude
Jack
J10(x), KJ10
QJxx+ (shorter lead Q)
10 H109+,
109+,10x+ HJ109+,
J10+
9
98+ or shortness
H109+, 109x+
Hi-x
Sx, x Sxx+ (9 8x)
Sxx, x Sxx+, Sx
Lo-x
HxSx(+); HxS, HxxxS
Normally HxxS(x); HxS
SIGNALS IN ORDER OF PRIORITY
Partner’s Lead
Declarer’s lead
Discarding
S
1
st
Hi = ENCRG
Hi = E
STD ATT
2
nd
Hi = E
S/P
STD CT
3
rd
N 1
st
Hi = ENCRG
Smith
STD ATT
2
nd
Hi = E
S/P
STD CT
3
rd
S/P
STD
CT
Signals (including trump): STD Remainder CT
First discard: Attitude, Count, S/P.
STD Smith Signal vs NT (hi=ENCRG), Occasional Obvious
shift, Trump signal occasional SP
DOUBLES
TAKEOUT DOUBLES (Style, Responses; Reopening)
Style: Support for unbid suits
Responses: Cue F until suit agreement
Jumps PRE over opp’s RDBL
Reopening: might be light with appropriate shape
SPECIAL, ARTIFICIAL & COMPETITIVE (RE-)DBLS
NEG DBL thru 4
(closer to “cards” at higher)
RESP DBL thru 4
, including (1X)-1Y-(1NT)-DBL
Maximal Overcall DBL to 3M; Snapdragon (4
th
suit) DBL
Support DBL through 2M (not over 1NT Overcall)
Most low level DBLs T/O
Dbl of cue fit raise = takeout
Category: Natural – GREEN
NCBO: USA 2
Event: Bermuda Bowl 2009
Players: Ralph Katz and Nick Nickell
SYSTEM SUMMARY
GENERAL APPROACH AND STYLE
5 card Majors (rarely 4 cards in 3
rd
or 4
th
), 1M-1NT F1
Avoid opening bad BAL hands 1st/2nd
1NT Opening: (14
+
)15-17 (liberties 3rd seat NV)
2 over 1 RESP: FG
SPECIAL BIDS THAT MAY REQUIRE DEFENSE
OPENINGS:
3NT= Gambling, Solid Minor with an A or K on the side
3
rd
seat can be light, usually with a good suit
RESPONSES:
1 m 2 = Limit Raise in m (UPH); 1m-2
= Weak m Raise
1
GF Raise , 3♣ = Mixed Raise (7-9 Dummy Points)
1♦- 2♦ = GF Raise , 3♦ = Mixed Raise (7-9 Dummy Points)
1 -3♣ = 6+
INV; 1♥-2♠ = weak; 1♣-2♦=5♠/4+♥ 6-9
1M-3♦ = Natural & Invitational, 3♣ = 4 Card LR, 3M =
Mixed Raise (7-9 Dummy Points), 3OM = 9-12 Splinter
P-1M; 2
Reverse Drury, fit
1m-(1NT)-2m=Majors
1M-(1NT)-2m=m+OM (5+ in OM)
COMPETITION:
Weak Jump Shifts at 2 level
Jump Shift at 3 level = Natural, 7-11 HCP’s
SPECIAL FORCING PASS SEQUENCES
If FP applies, then Dbl = weakest, Pass = better, Bid =
Strongest, Pass then pull = suggests no slam
DBL of 1NT Creates F/P thru 2D
IMPORTANT NOTES THAT DON´T FIT ELSEWHERE
If 1NT x’d for PEN: RDBL->2♣, Stayman, TFRs
2NT = F1 facing 6+card minor
Psychics:
Rare, third seat occasionally very light
WBF Convention Card
OPE
N
IN
G
A
R
T
IFI
CI
AL
MI
N
. # OF
C
ARD
S
NEG
D
B
L
TH
RU
Nick Nickell – Ralph Katz
July 2009
DESCRIPTION
RESPONSES
SUBSEQUENT AUCTION
PH & COMP BIDDING
1
3 4
11+ Occ 1♦ with 4♦/5♣
BAL 12-14, 18-19
1
with 33 minors,
Judgment with 44 minors
1M may bypass equal/longer
1NT = 6-10; 2NT = GF; 3NT = 16-18
Raises: 2
=GF (NOTE 5); 2 =Limit,
2♠=PRE; 3
= Mixed; 3x=PRE;
1♣-1♦ = occ 2/3♦; 1♣-2♦=5♠/4+♥ 6-9
1NT rebid may conceal 4M with 3(4)
.
/ 1NT rebid: 2♣ Puppet 2♦), 2♦ = FG; 2NT =
puppet 3♣ (NOTE 1). /2NT Rebid (NOTE 4)
3♣ Puppet 3♦, TFRs. 4SFG ex 1
= F1
(2♠=ART FG); 1♣-1M; 2♣-2♦ ART. Raise
1M with 3. 1♣-1♦; 2♦-3♣ = NF. /2NT:
3M=SPL/4R=TFR. 1♣-1♦; 1♥-1♠; 2♥=FG
PH: FIT jumps
4th suit NF, except reverse = F1
1
3 4
3 only with 4432
Mostly as for 1
;
2♣ FG (NOTE 3); 3♣=INV
After 1m-2m: 2♥=”BAL” (flawed NT);
2♠=UNBAL; om=NAT; 3m=6+m strong BAL
PH=FIT jumps; 4th suit NF; reverse= F1
1
5(4) 4
May be 4-card suit 3
rd
& 4
th
1NT = F1; 2/1M FG ex very clear misfit
2 NT = GF 4 trump raise: then ART
3♣ = Limit Raise; 3 = Mixed
3♦ = NAT INV; 2♠=weak
3
= ANY 9-12 SPL; 3NT/4m = 13+
SPLs
ART 2
/2 after 1NT response and 2m rebid
1M-1NT; 2NT: TFRs
After 3♣: 3♦ = some second suit; 3OM=some
void; next 3 steps = SPL up the line;
1M-1NT; 2♣-2♦ = 9+ ART; 3♦ = weak
After 1M: Reverse DRURY (fit)
FIT jumps except 3
NAT; 3M=5T
Mixed raise
After 1M (COMP): Fit Jumps; 3NT=
Good PRE 4M
1
5(4) 4
May be 4-card suit 3
rd
& 4
th
Mostly as over 1♥; 4♥ = NAT
3♥ = ANY 9-12 SPL; 3NT/4m=13+SPLs
See 1 for most continuations
1♠-1NT; 3♣ = NAT FG or 5+♠/4♥:3♦ asks
1NT 4
15-17 (may be very good
14) May have 5M, 6m,
SPL K
NF STAY, JTB, Texas
2
= Minor-
suit
Stayman; 2NT = ♣:
3
=
3♦ = Puppet Stayman
3 = 4144; 3
= 1444 (/3♠ 4♣=NAT or
strong 4♥: 4♦ asks)
1NT-2
-2 -3M = 4M, 5+OM; 2M=INV
1NT-2
-2x-4M = 6M slam try bad suit
1NT-2
-2 - 4 = 6♥/4♠, 4♦ = 6♠/4♥
1NT-2♣; 2M-3OM=ANY SPL, 4♦=BAL S/T
1NT-2♦; 2♥-2♠=ART FG; /3
/3 =INV
COMP: TRF LEB (mostly)
NEG DBL thru 3
System on thru opp 2
Texas if a jump; TRF over 3
Switch Majors over 3
2
√ 0
STR, ART, F 2NT or 3M
See NOTE (2)
2 =0/1control ; 2♥=2; 2♠= 3+
2NT = one loser suit; 3NT=solid suit
3x = TFR to 3 of 4 tops 6
th
(after “take”
new suit = SPL)
2
-2 ; 2:3 = 2
nd
negative; 3NT=ANY FIT
JUMP; Jump = SPL; 4♠=Good trumps and out.
2♣-2♦; 3M = 4M/5+♦. 2
-2 ; 2 = NAT or
25-26/29+ BAL: 2
INQ – then 3NT=27-28,
2NT=other BAL, else ♥. 2♣-2♥; 3♠ = 4♠/6+♥
DBL = 0/1K; Pass=2+K; suits = NAT 0-2;
Opener’s double penalty
2
6(5)
Weak 2, Fairly Sound
NS constructive at 2 Level, F at 3 Level
2 NT asks Feature, 4♣ = RKCB
2♦-2M; 2NT = NAT, forward-going
COMP: 2M=NF, 3x=F; 2NT=F1
2M
6(5)
New=F1; 2NT asks feature INV+
4♣=RKCB
2♥-2♠; 2NT= exactly 2♠
COMP: over DBL 2♠ = NF; jump
3♠=FG; 2NT+=TFRs; 4x = FIT; 2♥-(2♠)
same methods
2NT 4
20-21 BAL, May have 5M
Or SPL K
STAY, JTB, Texas
3
= Pup 3NT: 4m=om; 4M=SPL with
both minors; 4♠=Baron; 4N/5N = NAT;
OM after Stayman = slam try M
HIGH LEVEL BIDDING
RKCB – 0314; Some DBL KC situations: 2 suits bid/raised; 2-suiter opposite BAL hand.
4NT response to opening bid is RKCB; Kickback 0314; 4m=RKC if m agreed at 3-level.
GSF. Splinters. Gerber: 4♦=0/3; 4♥=1/4; 4♠=2; 4NT=2+extras. Vs Ace-ask KC
Interference: D0P1 below our suit; else DEPO
3x
7(6)
NAT, weak at favorable;
else fairly sound
New suit F1. 4
over 3R/3S and 3♣-4♦
Special RKCB: 0, 1, 1+TQ, 2, 2+TQ
3NT
√
Gambling; side A or K
4
= Pass or Correct; 4 =Asks for
Shortness; 4NT ask for O/S Ace; 5♣ = no
4x
Middle of the road PRE
SUPPLEMENTARY NOTES
NOTE (1)
2C Puppet to 2D to sign off in 2D or invite game
1m-1H; 1NT-2S = 4H/4S INV
1m-1M; 1NT-2NT Puppet to 3C to play 3C or show various FG/slam tries:
1m-1H; 1NT-2NT; 3C-3H = 5H4m(31) game plus: 4C asks lo-hi
-3D
=
4414
game-plus
-3S
=
1444
game-plus
-3NT
=
5H4m22
slam
try
1m-1S; 1NT-2NT; 3C-3S = 5S4m(31) game plus: 4C asks lo-hi
-3D = 435m1om game-plus
-3H
=
415m3om
game-plus
-3NT
=
5S4m22
slam
try
With 4M5m22 go through 2D
With 45 UNBAL after 1H response go through 2D
1m-1M; 1NT-2D; 2x-3m if only 4m and BAL then 16+; With 5m can be BAL or UNBAL after 1H response
NOTE (2)
2C Opening: FG, 2NT or 3M
Responses:
2D*
0 or 1 control
2H* 2
controls
2S*
3
or
more
controls
2NT Any
one-loser
6+card
suit
3C->3S*
Transfer to next higher suit: AKJxxx, AQJxxx, KQJxxx (or longer)
3NT*
Any
solid
6+-card
suit
4x
Two loser 7- or 8-card suit
[where
an
ace
is
two
controls;
a
king
is
one]
2C
2D*
2H*
Hearts (second suit possible) OR balanced game force (unrelated to hearts)
2S
Natural,
game-forcing
(9+
tricks)
2NT 23-24
HCP,
semi-balanced
3m
Natural,
10+
tricks
3H
4H/5+D, FG (3S/3NT NAT, 4C extra value 4H)
3S
4S/5+D, FG (3NT NAT, 4C extra value 4S);
3NT
Solid suit, no slam, 9+ tricks, stoppers
4C
5=4=0=4, game force (responder’s 4D=”unbiddable” extras for M; 4NT same for clubs)
4D
5=4=4=0, game force (responder’s 5C=”unbiddable” extras for M; 4NT same for D)
4M
Signoff,
too
many
controls
missing (responder may bid with side void)
2C
2D*
2H* Hearts
(second
suit
possible)
OR balanced game force (unrelated to hearts)
2S*
Relay
2NT Balanced
3C
One-suited
heart
two-bid
3D
Hearts
and
diamonds
3H
Hearts and secondary spades (3S=S, 3NT=H positive, 4H=weak preference)
3S
Hearts and clubs (4C=C, 4D=H positive, 4H=weak preference)
3NT 27-28
HCP:
4C
Stayman;
4R JTB; 4S minors; 4NT NAT
2C
2D*
2H*
3C->3S
7-card suit headed by the at best the queen-jack; else go via “normal” 2S)
2C
2D*
2S
3NT*
Any FIT jump (at least Hxx or xxxx of spades, trick source in context)
4x*
SPL
for
spades
2C
2D*
3C
3D*
Artificial, opener may introduce four-card major, play notrump from right side, etc.
jump-shift*
SPL raise of m, might be only three trumps as 3C is very strong
2C
2D*
3D
3H
NAT, may be only four; opener does NOT have a 4H/6+D hand
jump-shift*
SPL raise of m, might be only three trumps as 3C is very strong
2C
2M*
2NT Unlimited
2C
2H
3S
4S/5+H,
FG
4C
Strong
4H
4D
Strong
4S
2C
2S*
3H
4H
F1; 3+ controls and a fit=slam zone
After 2C-3x: “take” by opener, new suit by responder is shortness, else 3NT or (weakest) self-raise
NOTE (3)
1D
2C (FG)
2D
Any hand with 5+ diamonds
2H*
Specifically 4=4=4=1 pattern or anti-positional BAL hand
2S* Artificial,
strong
club
raise; includes 1444 and 4144 (Responder’s 3M NAT)
2NT Natural,
stopper
sensitive,
12-14
or
18-19
3C
Minimum club raise, at least four trumps, 1444 or 4144 included (Responder’s 3M NAT)
3D
Extra values, at most one loser in diamonds, no four-card major (rebid 2D).
3M* Splinters,
extra
values,
at
least
four-card support, not 4144 or 1444 or (40)54, (rebid 2S*)
so responder can cue-bid rather than look for a 4-4 major fit.
3NT*
18-20
HCP,
4=4=3=2
or
very
slow
hand
with four weak diamonds (Responder’s 4M NAT)
4C* RKC-C
4D* RKC-D
1D
2C
2H* 2S*
(INQ)
2NT 4441
minimum
range
3C
4441 stiff C honor minimum range
3D+ BAL
grope,
value-showing
3NT 4441
extras
4C
4441
stiff
C
honor
extras
1D
2C
2H* 3M
4M/5+C
(prefer
to
SHOW)
1D
2C
2S* 2NT Major-suit
stoppers
3C
No
reason
to
bid
NT
1D
2C
2S* 2NT
3M
SPL
(4441)
1D
2C
2S* 3C
3D
Strong
D
3M
Stopper
4M
SPL
(4441)
1D
2C
3NT 4M
NAT,
F1
NOTE (4)
1m
1M
2NT 3C
Puppet
to
3D
3D
After 1S: 4+H (take TFR only with 4H, else 3S with 3S or 3NT with 2/3)
3D
After 1H: 5+H (take TFR only with 2H, else with 3H vote re COG or slam interest)
3H
After 1H: 4S/4+H (Opener bids 3S with 3H, 3NT with 2H/<4S, else with 4S)
3H
After 1S: 5+S ((take TFR only with 2S, else with 3H vote re COG or slam interest)
3S
Other minor (typically only 4M) . . . 4m = NAT, not RKC
Opener takes retransfer to M only with TWO; with THREE opener votes for 3NT, 4M, or shows slam interest
1m
1M
2NT 3C
3D
Pass
Route
to
3D
3M
5M/4+m
3OM
SPL with 4M/4+m
4om SPL
with
4M/4+m
3NT 4M/4+m,
NF
4m
RKCB-m
4m is RKC if we have discovered a fit below the four-level and are FG
1m
1H
2NT 3D
3H
3S
6+H,
ART
slam
try
1m
1H
2NT 3H
4S/4+H
3S
Three-card
H
support
3NT NAT:
Neither
3H
nor
4S
4x
All
show
4S
NOTE 5
Inverted minors =FG
1m
2m
om
NAT
2H
ART BAL anti-positional (2S by Responder=BAL anti-positional; 2NT NAT, 3M/3om = SPL)
2S
ART, some SPL but not with 6m
2NT Positional
(3M/3om=SPL)
3m
6m322
3M
SPL with 6+m (also 1C-2C; 3D and 1D-2D; 4C)
3NT
18-19 with only 3m (4432 after 1D-2D)
4m
RKCB
4M
5M/6+m
minimum
NOTE 6
Lebensohl after takeout double of their weak 2M (2NT reply puppet to 3C): not when doubler=PH
Cue FG,
no
stopper,
not
4OM
3NT NAT,
stoppers
2NT then cue
FG, 4OM, no stopper
2NT then 3NT
NAT, with 4OM
2NT then 4x
RKCB-x (but only if doubler bids 3C over 2NT, not by PH)
Dostları ilə paylaş: |