Introduction
Welcome to Chen-Pang He (jdh8)'s experimental defensive bidding system!
We use the distribution syntax and abbreviations provided by WBF.
http://www.worldbridge.org/wp-content/uploads/2017/04/Guidetocompletion.pdf
This bidding system is based on
Good, Better, Best
by Jan Eric Larsson and my
improvisation.
Over natural (1X)
-
(1Y)
-
|
Dbl
|
T/O 11+ HCP or any 17+ HCP
|
-
-
|
1NT
|
15–17 HCP w/ likely stop
|
-
-
-
|
2NT
|
!UNT, 55+ in lowest two unbid suits, 10–15 HCP
|
-
-
|
3Y
|
!Gambling, SOL 7+m, at most partial stop
|
-
-
|
3NT
|
!Gambling, SOL 7+m w/ likely stop
|
-
(1
♣
)
-
|
2
♣
|
!Landy, 4+
♠
, 4+
♥
, 8.5–6.0 NLTC
|
-
|
2
♦
|
!(R), equal preference
|
-
(1
♦
)
-
|
2
♦
|
!Michaels, 5+
♠
, 5+
♥
, 8.5–6.0 NLTC
|
-
(1
♥
)
-
|
2
♥
|
!Michaels, 5+
♠
, 5+m, 10–15 HCP
|
-
(1
♠
)
-
|
2
♠
|
!Michaels, 5+
♥
, 5+m, 10–15 HCP
|
Due to insufficient strength, 1NT by passed hand becomes unusual.
-
(1X)
-
|
1NT
|
!UNT, 55+ in lowest two unbid suits
|
Balancing overcall
-
(1Y)-Pass
-
|
Dbl
|
T/O 9+ HCP or any 13+ HCP
|
-
-
-
-
(1m)
-
|
2m
|
!Michaels, 5+
♠
, 5+
♥
, 9.0–7.5 NLTC
|
-
(1
♥
)
-
|
2
♥
|
!Michaels, 5+
♠
, 5+m, 8–12 HCP
|
-
(1
♠
)
-
|
2
♠
|
!Michaels, 5+
♥
, 5+m, 8–12 HCP
|
Notrump overcalls
Like a direct overcall, 1NT by passed hand is unusual.
-
(1X)-Pass
-
|
1NT
|
!UNT, 55+ in lowest two unbid suits
|
After (1X)-1NT
-
(1m)-1NT
-
|
2
♣
|
!STAY, may be Garbage
|
-
-
-
-
-
-
Over strong (1
♣
)
We use DOSC, our self-made defense inspired by DONT and Terrorist's Moscito.
-
(1
♣
)
-
-
-
|
1
♥
|
! 4+
♥
, 4+X, 5–11 HCP
|
-
|
1
♠
|
! 4+
♠
, 4+m, 5–11 HCP
|
-
-
|
2
♣
|
! 4+
♣
, 4+
♦
, 5–11 HCP
|
-
-
-
|
2NT
|
!UNT, 5+
♦
, 5+
♣
, 5–11 HCP
|
-
(1
♣
)-Dbl
-
|
1
♦
|
!NF (R), 0–2
♥
, 0–10 HCP
|
-
-
-
-
-
-
-
-
-
(1
♣
)-1
♦
-
|
1
♥
|
!NF (R), 0–2
♠
, 0–10 HCP
|
-
-
-
-
-
-
-
-