| 自然制 ( Modified Nature ) Opening with
5-5-4-2 |
高榮橋藝社(
Bridge Club of Veterans General
Hospital-Kaohsiung )
高雄橋藝中心Kaohsiung - Bridge Center : 3346977, 3336675
Last update in
March 1, 2006
Tel :
3422121-6717, 2008 & 2010
簡介 ( Summary )
1C
: 13 - 20 points, C 2 cards .
1D : 13 - 20 points, D 4 cards.
1H : 13 - 20 points, H 5 cards.
1S : 13 - 20 points, S 5 cards.
1NT : 16 - 18 points, may have 5 cards minor
2C : > 21 points, except 2NT & 3NT, or a hand with > 9 winners.
2D : 8 - 11 points, 5-5 minor suits, or more than 4-4 (except 4-4-3-2)
major suits.
2H : 8 - 11 points, > 6 cards.
2S : 8 - 11 points, > 6 cards.
2NT : 21 - 22 points, balanced hand.
3C : 8 - 11 points, 7 cards suit, at least two honors.
3D : 8 - 11 points, 7 cards suit, at least two honors.
3H : 8 - 11 points, 7 cards suit, at least two honors.
3S : 8 - 11 points, 7 cards suit, at least two honors.
3NT : 25 - 27 points, balanced hand.
4C : 8 - 11 points, > 8 cards suit with AKQ.
4D : 8 - 11 points, > 8 cards suit with AKQ.
4H : Close bid ( at most two honors ).
4S : Close bid ( at most two honors ).
4NT : Blackwood convention, or Roman Key Cards.
5C : Close bid.
5D : Close bid.
DEFENSE BID
Negative double up to 2S. ( 3D )
Take-out double up to 4H, 4S could be penalty and overcall with 4NT as take-out.
Over call : One overcall one, 8 - 15 points, 4 cards suit with at least 2 honors, or 5 cards suit.
Two overcall one, 12 - 15 points, 5 cards suit.
Other cases, 12 - 15 points, 5 cards suit.
Unusual : 2NT - To H or S means 5 - 5 two minor suits, 8 - 11 points.
or the other two suits .
Cue bid : To H or S means 5 - 5 the other major and one minor suit.
To C or D means 5 - 5 two major suits.
Leading : High then low means even number, low then high means odds number.
Doubleton : lead the larger one.
3 cards without honor or J : lead middle card.
3 cards with honor or J : lead the small one.
4 cards without honor or J : lead the second card.
4 cards with honor or J : lead the fourth one.
Sequential cards : lead the largest one.
Follow card : Odds No. means favor & even number means not favor.
Discard signal : 锣传乖礟 The discard suit : 计眎 - Favor, the suit 案计眎 - Not favor the suit, depends on the card with high or low.
氮 : 玥琌穝, 铬穝材穝の`ΘЫ
( Summary )
1C
: 13 - 20 points, at least 2 cards
1D : > 6 points, and > 4 cards suit.
1H : > 6 points, and > 4 cards suit.
1S : > 6 points, and > 4 cards suit.
1NT : 6 - 9 points.
2C : 6 - 9 points, club suit only ( > 5 cards ) .
2D : > 13 points, 5 cards suit, no other suit.
2H : > 13 points, 5 cards suit, no other suit.
2S : > 13 points, 5 cards suit, no other suit.
2NT : 10 - 12 points.
3C : > 13 points, > 5 cards, no other suit.
3NT : 16 - 18 points, balanced hand.
3D : Splinter, > 5 cards C, > 13 points and D singleton or void.
3H : asking HCP and distribution.
3S : 13 -15 points, singleton ; 3 NT : 13 - 15 points, void.
4C : > 16 points, singleton ; 4D : > 16 points, void.
3H : Splinter, > 5 cards C, > 13 points and H singleton or void.
3S : asking HCP and distribution.
3 NT : 13 -15 points, singleton ; 4C : 13 - 15 points, void.
4D : > 16 points, singleton ; 4H : > 16 points, void.
3S : Splinter, > 5 cards C, > 13 points and S singleton or void.
4C : asking HCP and distribution.
4 D : 13 -15 points, singleton ; 4H : 13 - 15 points, void.
4 S : > 16 points. singleton ; 4NT : > 16 points, void.
高拜┮Τ穝琌高拜
( Summary )
1D
: 13 - 20 points, > 4 cards
( one exception 4-4-3-2, > 3 cards )
1H : > 6 points, and > 4 cards suit.
1S : > 6 points, and > 4 cards suit.
1NT : 6 - 9 points, no 4 cards major and no 5 cards D.
2C : > 10 points, and > 4 cards suit.
2D : 6 - 9 points, and D 4 cards support.
2H : > 13 points, > 5 cards suit, no other suit.
2S : > 13 points, > 5 cards suit, no other suit.
2NT : 10 - 12 points.
3C : > 13 points, > 5 cards suit, no other suit.
3D : > 13 points, > 4 cards, no other suit.
3NT : 16 - 18 points, balanced hand.
3H : Splinter, > 5 cards D, > 13 points and H singleton or void.
3S : Asking.
3S : Splinter, > 5 cards D, > 13 points and S singleton or void.
4C : Asking.
4C : Splinter, > 5 cards D, > 13 points and C singleton or void.
4D : Asking.
( Summary )
1H
: 13 - 20 points, > 5 cards
1S : > 6 points, and > 4 cards suit.
1NT : 6 - 9 points, no 4 cards S, no 4 cards support.
2C : > 10 points, and > 5 cards suit.
2D : > 10 points, and > 5 cards suit.
2H : 6 - 9 points, with > 3 cards support.
2S : > 13 points, > 5 cards, no other suit.
2NT : 10 - 12 points, balanced hand, no 4 cards H or 5 cards minor suit.
3C : > 13 points, > 5 cards, no other suit.
3D : > 13 points, > 5 cards, no other suit.
3H : > 13 points,> 4 cards with at least one honor.
3NT : 16 - 18 points, balanced hand.
3S : Splinter, > 4 cards H, > 13 points and S singleton or void.
4C : Asking
4C : Splinter, > 4 cards H, > 13 points and C singleton or void.
4D : Asking.
4D : Splinter, > 4 cards H, > 13 points and D singleton or void.
4S : Asking.
( Summary )
1S
: 13 - 20 points, > 5 cards
1NT : 6 - 9 points, no 4 cards S.
2C : > 10 points, and > 5 cards suit.
2D : > 10 points, and > 5 cards suit.
2H : > 10 points, and > 5 cards suit.
2S : 6 - 9 points, 3 cards support.
2NT : 10 - 12 points, balanced hand and no no spade support.
3C : > 13 points, C suit, no other suit.
3D : > 13 points, D suit, no other suit.
3H : > 13 points, H suit, no other suit.
3S : >13 points, and > 4 cards with at least one honor.
3NT : 16 - 18 points, balanced hand.
4C : Splinter, > 4 cards S, > 13 points and C singleton or void.
4D : Asking
4D : Splinter, > 4 cards S, > 13 points and D singleton or void.
4H : Asking
4H : Splinter, > 4 cards S, > 13 points and H singleton or void.
5C : Asking
( Summary )
1NT
: 16 - 18 points, may have 5 cards minor
2C : Stayman convention, asking 4 cards major.
2D : No 4 cards major, may 5 cards minor.
2H : 4 cards, may have 4 cards S.
2S : 4 cards, but no 4 cards S.
2D : Forcing game, * 10 points.
2H : 4 cards H, low limit.
2S : 4 cards S, low limit.
2NT : No 4 cards major, low limit.
3C : 5 cards suit, high limit.
3D : 5 cards suit, high limit.
3H : 4 cards H, high limit.
3S : 4 cards S, high limit.
3NT: No 4 cards major, high limit.
2H : Close bid, < 5 points and > 5 cards suit.
2S : Close bid, < 5 points and > 5 cards suit.
2NT : 7 - 8 points, no 4 cards major.
3C : close bid, < 5 points and C 6 cards suit.
3D : Close bid, < 5 points and D 6 cards suit.
3H : 5 cards suit, > 10 points, forcing game.
3S : 5 cards suit, > 10 points, forcing game.
3NT : 9 - 14 points, close bid.
4C : Gerber convention, asking aces.
4NT : Invite 6NT; lower limit - pass; upper limit - 6NT.
5NT : Invite 7NT; lower limit - 6NT; upper limit - 7NT.
( Summary )
2C
: > 21 points, except 2NT & 3NT, or a hand with > 9 winners.
2D : 0 - 5 points.
2H : > 6 points, H 5 cards suit.
2S : > 6 points, S 5 cards suit.
2NT : 6 - 8 points, balanced hand, no 5 cards suit.
3C : > 6 points, C 5 cards suit.
3D : > 6 points, D 5 cards suit.
3NT : 9 - 11 points, balanced hand, no 5 cards minor.
4C : > 12-14 points, balanced hand, no 5 cards minor.
( Summary )
2D
: 8 - 11 points, 5-5 minor suits, or more than 4-4 (except 4432) major suits
2H : Closed bid.
Pass - two major suits.
2NT - two minor suits.
3C : Close bid.
3D : Close bid.
2S : Closed bid.
Pass - two major suits.
2NT - two minor suits.
3C : Close bid.
3D : Close bid.
2NT : Forcing game and asking distribution. 穝高拜
3C : 4-4-4-1 or 4-4-5-0
3D : Forcing, asking the distribution
3H : 4-4-4-1, C singleton.
3S : 4-4-1-4, D singleton.
3NT : 4-4-5-0 or 4-4-0-5
4C : Asking
4D : C void
4H : D void.
3D : H 5 cards & S 4 cards .
3H : Forcing, asking the distribution
3S : 4522
3NT : 4531 or 4513
4C : Asking
4D : C singleton.
4H : D singleton.
4C : 4540 or 4504
4D : Asking
4H : C void.
4S : D void.
3H : S 5 cards & H 4 cards.
3S : Forcing, asking the distribution
3NT - 5422
4C - 5431 or 5413
4D : Asking
4H : C singleton.
4S : D singleton.
4D - 5404 or 5440
3S : More than 5-5 major suits.
4C - Forcing, asking the distribution
4D : 5521
4H : 5530 or more than 6-5 distribution.
3NT - more than 55 minor suits
4C : Forcing, asking the distribution
4D : 5521
4H : Forcing, asking the distribution
4S - 2155, H singleton.
4NT - 1255, S singleton.
4H : 3055.
4S : 0355.
( Summary )
2H
: 8 - 11 points, 6 cards.
2S : 13 - 15 points, S suit, H singleton or void.
2NT : Forcing game and asking distribution.
3C : 8 - 9 points.
3D : 10 - 11 points, D singleton.
3H : 10 - 11 points, C singleton.
3S : 10 - 11 points, S singleton.
3NT : 10 - 11 points, 6-3-2-2 distribution.
3C : 13 - 15 points, C suit.
3D : 13 - 15 points, D suit.
3H : 10 - 12 points, H support.
Any new suit after 2NT is forcing !
( Summary )
2S
: 8 - 11 points, 6 cards.
2NT : Asking .
3C : 8 - 9 points.
3D : 10 - 11 points, D singleton.
3H : 10 - 11 points, H singleton.
3S : 10 - 11 points, S singleton.
3NT : 10 - 11 points, 6-3-2-2 distribution.
3C : 13 - 15 points, C suit.
3D : 13 - 15 points, D suit.
3H : 13 - 15 points, H suit.
Any new suit after 2NT is forcing !
( Summary )
2NT
: 21 - 22 points, balanced hand.
3C : Stayman convention, asking 4 cards major, forcing game.
3D : no 4 cards major.
3H : 4 cards.
3S : 4 cards.
3 NT : have 5 cards minor suit
3D : a minor suit at least 6 cards.
3H : Close bid.
3H : Close bid.
3NT : Close bid.
4C : Gerber convention, asking aces.
4D : Transfer 4H.
4H : Transfer 4S.
4NT : Slam invite.
Pass : Lower limit.
5 X : Higher limit, From lowest 4 cards suit, if no 4-4 suit fit then bid 6NT.
6 Z : 5 cards suit.
5NT : Grand slam invite.
6NT : Lower limit.
6 X : Higher limit, From lowest 4 cards suit, if no 4-4 suit fit then bid 7NT
7 Z : 5 cards suit.
( Summary )
3NT
: 25 - 27 points, balanced hand, may have 5 cards minor.
4D : Transfer 4H.
4H : Transfer 4S.
4NT : Slam invite.
5C : Close bid.
5D : Close bid.
5NT : Grand slam invite.
Principles of other opening ( mainly preemptives ), 穝高拜
( Summary )
3C
: 8 - 11 points, 7 cards suit.
3D : 8 - 11 points, 7 cards suit.
3H : 8 - 11 points, 7 cards suit.
3S : 8 - 11 points, 7 cards suit.
4C : 8 - 11 points, H 8 cards suit with AKQ.
4D : 8 - 11 points, S 8 cards suit with AKQ.
4H : Close bid.( at most two honors ).
4S : Close bid.( at most two honors ).
5C : Close bid.
5D : Close bid.
Principles of other opening ( mainly preemptives )
( Summary )
Supplements to opening and defence.
When asking aces and interrupt by enemy's bid in any level, DEPO ( doble even & pass odds ) is the rule.
Response to take-out double, cut bid is the only way to express forcing game.
Key point about double by opponents.
1NT : Pass - weak and no 5 cards suit, or < 6 points, balanced hand.
Redouble - weak, more than 2 suits.
2C - Close bid.
2D - Close bid.
2H - Close bid.
2S - Close bid.
2NT - Unusual distribution, game forcing.
3 X - 2 cards suit (1NT).
3NT - 4-3-3-3 distribution.
1X : Redouble - > 10 points
2X - 4 - 5 points with good support.
3X - 6 - 9 points with good support.
2NT - > 13 points with good support.
New suit - 6 - 9 points , non-forcing.
Response to Partner's double take-out
$ Smiple overcall response : 0 - 7 points, > 3 cards.
$ Overcall NT : 8-10 points.
$ Jump overcall or Free bid : 8 - 11 points.
$ Cue bid : more than 12 points, forcing game !
Response to Partner's overcall opponent's bid
$ Simple raise : 8-11 points ; Jump raise : 12 - 13 points .
$ Cue bid : > 13 points, forcing.
$ New suit overcall : 8 - 12 points, non-forcing.
$ Overcall NT : 10-12 points.
( Summary )