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1♦ Opening

1M
5+ and 4+M
1NT
GF
  1. bal w/o 4M
  2. 4+♦, unbal, 4M possible
  3. 5♣332/6♣322 or 5+♣, unbal w/4M
2♣
5-8, (5)6+♣
2♦
5-10, 3(4)♦ including 5-6 or 9-10, 4+♦, offensive raise
2♥
5♠ 4+♥, 5-10
2♠
9-12.5, (5)6+♣
2NT
INV, (2)3+♦
3♣
offensive raise,7-8, 4+♦
3♦
PRE
3M
12-15, SPL w/void
3NT
12-15, SPL♣w/void
4M
to play, long suit w/o outside control, semi-PRE
1♦-1♥
1♠
11-18,5+♦ 4♠
1NT
17+, 5+♦ 4+♣ or 17+, 6+♦ 0-2♥
2♣
11-16, 4+♦ 4+♣
2♦
11-16, 6+♦ (15-16 must be poor suit)
2♥
11-14, 3+♥, also w/=4351, 11-14
2♠
nat reverse, 19+
2NT
15+, 6+♦ 3♥ or 5+♦ 4♥
3♣
15-16, 5♦ 5♣ (good texture)
3♦
15-16, good 6+♦ 0-2♥
3♥
17-18, 4♥
3♠
GF, SPL
3NT
to play
4♣
GF, SPL
4♦
GF, 4♥ w/(almost) solid 6+♦
4♥
19-20, 4♥
1♦-1♠
1NT
17+, 5♦ 4♣ or 17+ 6+♦ 0-2♠
2♣
11-16, 4+♦ 4+♣
2♦
11-16, 6+♦ (or 5♦ 4♥), must have 5♦ or poor 6-suit w/15-16
2♥
nat reverse
2♠
11-13(14), 3+♠
2NT
15+, 6+♦3♠ or 5+♦ 4♠
3♣
15-16, 5♦ 5♣(good texture)
3♦
15-16, good 6+♦ 0-2♠
3♥
SPL, INV+
3♠
17-18, 5+♦ 4♠, no ♥ shortness
3NT
to play
4♣
SPL
4♥
SPL
3♠
19-20, 4♠
1♦-1M-1NT
2♣
GF ASK
2♦
5-6, to play
2M
5-6, 6+M
2NT
5-6, no other suitable call
3NT
to play
1♦-1♠-1NT
2♥
6♠ 4♥, 5-6
1♦-1M-1NT-2♣
2♦
6322 w/o 3M or 7222
2oM
6322 w/3M
2M
5♦4♣ w/3M
2NT
5♦4♣ w/o 3M
3♣
5♦5♣
3♦
6+♦ w/♣shortness
3M
6+♦ w/M shortness
1♦-1M-2♣
2♦
(5)7-10, correction (opener sbsq. bids w/15-16)
2oM
GF
2M
5-10, 6+M
2NT
nat INV
3♣
9-10
3♦
nat INV
3♥
INV, 5♠5♥
3M
nat INV
1♦-1♥-2♦
2♥
5-10, 6+♥
2♠
GF
2NT
nat INV
3♦
9-10
3♣
nat INV
1♦-1♠-2♦
2♥
5♠4+♥, INV
2♠
5-10, 6+♠
2NT
nat INV
3♣
GF
3♦
9-10
3♠
natINV, 6+♠
1♦-1M-2M
2♠
nat INV+
2NT
ASK
3♣, 3♥
shortness, INV+, 5+M
3♦
nF
3M
6+M, tactical
1♦-1M-2M-2NT
3♣
not accepting the INV, only 3M, 5♦ 4+♣
3♦
not accepting the INV, only 3M, w/o 4+♣
3M
not accepting the INV, 4M
3NT
accepting the INV, only 3M
4M
accepting the INV, 4M
1♦-1♠-2♥
2♠
5+♠, 5-6
2NT
mini-Lebensohl, minor s/o / support, 5-6 / GF w/5♠ /bal w/♣ stopper
3m
nat GF
3♥
nat GF
3♠
GF, 6+♠
3NT
bal w/o ♣ stopper
1♦-1♥-2♠
2NT
ASK for shape
3♣
6+♣
3♦
nat
3♥
6+♥ (then everything other than 3NT & 4♥ for hearts)
3♠
extras
4♠
fast arrival
1♦-1♥-2♠-2NT
3♣
=4153/=4054/=4063
3♦
=4261/=4162/ 7♦4♠
3♥
=4351
3♠
=4252 w/o ♣ stopper
3NT
=4252 w/♣ stopper
1♦-1M-2NT
3♣
INV+ ASK (3♦/3M min, 3NT/4M max, other 3rd lvl GBS, 4th control for M)
3♦
only 4M, 5-6
3M
5M, 5-6
3oM
control for M
3NT
to play
4♣
control for M
4♦
S/T
4M
5+M, 7+, to play

Continuation after sequences like 1♦-1M-3m: GBS, stoppers from lowest, M rebid shows 5+M GF

1♦-1NT
2♣
11-16, waiting
2♦
17+, 6+♦, 0-1♣
2M
17+, 5+♦, 4M
2NT
17+, 6+♦, 2♣
3♣
17+, 6+♦, 3+♣
3♦
17+, 7+♦, AKQJxxx or better, exactly one control outside
3M
17+, 5+♦, 4+♣, 0-1M
3NT
17+, =2254
1♦-1NT-2♣
2♦
GF (3)4+♦, may be M4 or good diamond support w/longer clubs too
2M
5+♣ 4M, GF (sbsq: 2♠ nat, 2NT extras w/o support, 3M, 4M support (Fast Arrival), 3♣ extras, support)
2NT
bal, w/o M4 (sbsq: 3NT no extras, 3x nat, extras)
3♣
6+♣ or 5♣332, GF (sbsq: 3♦ 0-2♣, 3M and 3NT 3+♣ GBS)
3M
SPL w/singleton
3NT
SPL ♣ w/singleton
1♦-1NT-2♣-2♦
2M
nat, subsequently:
2♠
nat,
2NT
extras w/o M4,
3M/4M
support (Fast Arrival)
3♣
nat, 5+♣, w/extras,
3NT
w/o extras, no 4♠ after 2♥
2NT
54+ minors w/extras
3♣
nat, 54+ w/o extras
3♦
6+♦, w/extras
3M
SPL
3NT
6+♦, w/o extras
1♦-2♣
2♦
to play
2M
nat, INV+
2NT
5+♦ 4+♣, INV
3♣
tactical
3♦
6+♦, INV
3M
lowest stopper
3NT
to play
1♦-2♦
2NT
ASK, 15+
3♣
11-14, 5♦4♣+
3♦
tactical
3M
SPL, 6+♦, GF
3NT
♣SPL, 6+♦, GF
1♦-2♦-2NT
3♣
7-8
3♦
5-6
3M
GF, lowest stopper
3NT
9-10 w/both M stopped
1♦-2♥
pass or 2♠
to play
2NT
ASK,15-16, 4+♣ or 17-18 any
3♣
15-16, 6+♦
3♦
11-14, 6+♦
3M
15-16 w/support
1♦-2♥-2NT
3♣
7-8
3♦
5-6
3♥
9-10, 5♠ 4♥
3♠
9-10, 5♠ 5♥
3NT
9-10, 65MM (4♣ then ask for longer M, responses: 4♦ is ♠, 4♥ shows ♥ or equal)
1♦-2♥-3♣
3♦
5-8
3♥
9-10, 5♠ 5♥ (3♠ GBS)
3♠
9-10, 5♠ 4♥ w/o ♣ stopper
3NT
9-10, 5♠ 4♥ w/♣ stopper
1♦-2♠
2NT
nat INV
3m
to play
3M
lowest stopper
3NT
to play
4m
slam try in this minor
1♦-3♣
3♦
to play
3M
GF, stoppers from the lowest

Passed hand bidding

1NT
nat INV
2♦
can’t bid 2NT nor 3♣
2M
4-6 6+M
2NT
offensive raise, 9-10, 4+♦, unbal
3♣
offensive raise, 7-8, 4+♦, unbal
p-1♦-2NT
3♣
nat GF
3♦
to play
3M
GBS
3NT
to play
4♣ and 4M
SPL, max

When 2nd hand interferes

1♦-(X)
XX
(9)11+, PEN
1M
nat
1NT
7-10
2♣
7-10, (5)6+♣
2♦
7-10 w/support
2M
4-6, 6+M
2NT
nat INV
3♣
GF, 6+♣
3♦
PRE
3NT
to play
1♦-(1♥)
X
TRF ♠
1♠
TRF NT, can be INV or GF minor (sbsq. INV = 2nd lvl, GF = 3rd lvl)
1NT
INV bal
2♣
7-10, (5)6+♣
2♦
7-10, 3+♦
2♥
GF, asks for a halfstopper
2♠
4-6, 6+M
2NT
INV+ w/ diamonds, unbal
3♣
FJ
3♦
PRE
3♥
GF, ♥ shortness
3♠
GF, 6+♠
3NT
to play
1♦-(1♠)
X
7+, 4+♥
1NT
7-10
2♣
(3)4+♦, 7-12.5
2♦
(5)6+♥, 7+
2♥
(5)6+♣, 7+
2♠
GF, ask
2NT
nat INV
3♣
nat, GF
3♦
4+♦, PRE
3♥
nat, GF
3♠
SPL
1♦-(1♠)-2♣-(P or X)
2♦
to play against 7-10
2♥
GF, 5+♦ 4♥
2♠
GF w/o stopper, ask
2NT
GF w/stopper
3♣
GF, 5+♦ 4+♣
3♦
INV
3M
SPL
1♦-(1♠)-2♣-(P or X)-2♦-(P or X)
2♥
semi-nat INV, F
2♠
INV w/o stopper
2NT
nat INV w/stopper
3m
nat INV
3M/4♣
SPL
1♦-(1♠)-2♦-(P or X)
(X)-P
11-16, 0-1♥
2♥
to play against 7-10
2♠
GF w/o stopper, ask
2NT
GF w/stopper
3♣
GF, 5+♦ 4+♣
3♦
15-16, 6+♦0-1♥
3♥
INV
3♠
SPL
1♦-(1♠)-2♦-(P or X)-2♥-(P or X)
2♠
GF, ask
2NT
nat INV
3m
GF, 5+♥ 4+m
3♥
nat INV
3♠/4m
SPL
1♦-(1♠)-2♦-(P or X)-2NT-(P or X)
3♣/♦/♥
nat
3♠/4m
SPL
1♦-(1♠)-2♥-(P or X)
2♠
15+, ask (2NT 9-10, 3♣ 7-8)
2NT
min
3♣
accepting if INV
3♦
15-16, 6+♦
3♥
GF, 5+♦ 4+♥
3♠
GF, ask
4♣
GF
1♦-(1NT)
X
(9)11+ PEN
2♣
7-10, (5)6+♣
2♦
7-10, 3+♦
2M
7-10, (5)6+M
2NT
5♥ 5♠+, 7+
3♣
5♣ 5M, 7+
3♦
PRE
3M
nat PRE
3NT
to play (RHO has obviously psyched)
1♦-(2♣ and higher)
X
7(8/9/10)+ negative (Thrump double after 3M overcall)
2♦
7-10 w/support
2M
7-10, (5)6+M
2NT
nat INV
Cue 3rd lvl
GF, ask for halfstopper
3♦
PRE after 2♣ OVCL, mixed after higher
New suit 3rd lvl
nat, GF
3NT
to play
1♦-(3M)
4M
SPL
4♦
GF, support
1♦-(3♣)
4♣
GF, support
4♦
nat INV

When 4th hand interferes

1♦-(p)-1M-(X)
XX
11-16, 3M
Rest
System ON
4th hand overcalls (no jump) on the 2nd lvl after our 1♦-1M
X
support
2NT
17-18, (semi-)bal w/stopper
Cue
INV+, stopper ask
3M
15-18 w/support
3NT
19+ w/stopper

4th hand PRE

1♦-(p)-1M-(3M-1)
3M
11-14 w/4 card support and not a very defensive hand (can be stretched NV)
X
15+, DSI2, can be with support
1♦-(p)-1M–(1M+1 to 3M-2) (i. e. when we have at least two suit bids available)
3M
11-14 w/4 card support and not a very defensive hand - (can be stretched NV)
X
17+ DSI3, but also Thrumpish
3 unbid
INV w/4+ card support (if two calls free, then w/values here rather than in unbid one)
3♦
15-16, 6+♦
1♦-(p)-1M-(3a)-p-(p)
X
(IMPs) GF
(MPs) 9+
3b
(IMPs) 9-12.5
(MPs) 9+

When they reopen

Openers bidding after RHOs reopen X
XX
17-19 semibal
1NT
6+ suit which was opened, 17+
rebid 2nd lvl
good 6+ suit 15-16
new suit
17+, 55+
3rd lvl action
extra strong, 9 tricks against bust
Openers bidding after RHOs suit reopen
X
17+, T/o
1NT
17-19, (semi)bal w/stopper
rebid 2nd lvl
17+, 6+ suit
new suit
17+ 5+ 5+
3rd lvl action
extra strong, 9 tricks against bust
Openers bidding after RHOs 1NT reopen
X
17+ DSI3
rebid 2nd lvl
17+, good 6+ suit
new suit
17+, 5+ 5+
3rd lvl action
p/c or to play against a complete bust and misfit