w****b
发帖数: 623 | 1 Very good system notes... from ustc bbs.
标准叫牌体系的一低花开叫(一)
开叫、第一应叫和开叫人的再叫
在标准叫牌体系中，一低花开叫是最复杂也是最难掌握的叫牌序列。对一阶低花开叫的讨
论，有助于桥牌思维的形成。
我们首先看一看开叫，对于开叫一阶低花的最低限是多少一直是一个有争议的问题。我觉
得对于均型牌，通常13点开叫比较好，12大牌点在下列情况下可以开叫：①控制很好，3
个
A或2A1K；②有四张黑桃套，或有四张红心外加三张黑桃且非4333牌型；③有一个五张尚
可
的低花套。对于非均型牌，在没有四张高花套的情况下，开叫应该有不低于12大牌点的实
力，如果是5张低花带四张黑桃或34高花，11大牌点可考虑开叫。如果是64套，正常的11
大
牌点都可以开叫。
对开叫花色的选择经常也是困扰我们的问题。其中比较困难的是44低花、45低花和5张高
花
6张低花几种情况。对于44低花的情况，主要考虑再叫的方便，一般来说，如果准备再叫
一
无将就开叫1C，例如4432牌型(对于这一点有些牌手有不同的处理方法，例如安徽省队的
体
系要求 | c****u
发帖数: 3277 | 2 With Andrew Gumperz, we play 4 card major opening and no invert minor raise,
so 1D p 2D: simple raise;
1D 3C: GF raise
1D 3D: invitational.
1D 1NT: still can have a bad 4 card major...but it is NT oriented....
over 1D 2C:
2D: showing 5 diamonds, any hand
2H/S: usually denies 5 diamonds, can be 4-4-4-1 or 4-4-3-2 balanced.
2NT: natural, 12-13 HCP.
3C: extra value or good clubs, with good clubs, we always push to game.
This structure works fine I think.
The major draw back is 1D 3C which is a litt
【在 w****b 的大作中提到】
: Very good system notes... from ustc bbs.
: 标准叫牌体系的一低花开叫(一)
: 开叫、第一应叫和开叫人的再叫
: 在标准叫牌体系中，一低花开叫是最复杂也是最难掌握的叫牌序列。对一阶低花开叫的讨
: 论，有助于桥牌思维的形成。
: 我们首先看一看开叫，对于开叫一阶低花的最低限是多少一直是一个有争议的问题。我觉
: 得对于均型牌，通常13点开叫比较好，12大牌点在下列情况下可以开叫：①控制很好，3
: 个
: A或2A1K；②有四张黑桃套，或有四张红心外加三张黑桃且非4333牌型；③有一个五张尚
: 可
| a*******s
发帖数: 295 | 3 As I remember, This is from "Two over one game forcing", by Max Hardy.
讨
觉
3
尚
实
力，如果是5张低花带四张黑桃或34高花，11大牌点可考虑开叫。如果是64套，正常的11
高
叫
的
花
虑
虑
牌
6
叫
一
是
。
【在 w****b 的大作中提到】
: Very good system notes... from ustc bbs.
: 标准叫牌体系的一低花开叫(一)
: 开叫、第一应叫和开叫人的再叫
: 在标准叫牌体系中，一低花开叫是最复杂也是最难掌握的叫牌序列。对一阶低花开叫的讨
: 论，有助于桥牌思维的形成。
: 我们首先看一看开叫，对于开叫一阶低花的最低限是多少一直是一个有争议的问题。我觉
: 得对于均型牌，通常13点开叫比较好，12大牌点在下列情况下可以开叫：①控制很好，3
: 个
: A或2A1K；②有四张黑桃套，或有四张红心外加三张黑桃且非4333牌型；③有一个五张尚
: 可
| w****b
发帖数: 623 | 4 The advantage of inverted minor is by reserving more spaces, it keeps your
option open and often offer a better chance to cater to 3N, 5 of the minor, or
the minor slam.
The disadvantage of inverted minor is the invitational minor fit hand, or
invitational hand with other minor, can often be a challenge -- that is, if
you play inverted minor for game forcing -- jumping to the other minor can
introduce other problems, so in many cases, you have to either bid you 3 card
major or bid 1NT, which oft
【在 c****u 的大作中提到】
: With Andrew Gumperz, we play 4 card major opening and no invert minor raise,
: so 1D p 2D: simple raise;
: 1D 3C: GF raise
: 1D 3D: invitational.
: 1D 1NT: still can have a bad 4 card major...but it is NT oriented....
: over 1D 2C:
: 2D: showing 5 diamonds, any hand
: 2H/S: usually denies 5 diamonds, can be 4-4-4-1 or 4-4-3-2 balanced.
: 2NT: natural, 12-13 HCP.
: 3C: extra value or good clubs, with good clubs, we always push to game.
| c****u
发帖数: 3277 | 5 I think playing inverted minor raise, it's more practical to play
1D 3D to show 7-9 HCP, 5 diamonds.
it's usually not a really good idea to play 3D as <= 6 here because
7-9 is more important in many competition sequences.
anyway, 1D 2C is always a big headache of all systems.
And I really don't like to bid 3 card major at one level, because
I like to raise to 2M with 3.
There is no point to mess up oneself's major suit biddings for
positional considerations.
Anyway, I think the priority of which
【在 w****b 的大作中提到】
: The advantage of inverted minor is by reserving more spaces, it keeps your
: option open and often offer a better chance to cater to 3N, 5 of the minor, or
: the minor slam.
: The disadvantage of inverted minor is the invitational minor fit hand, or
: invitational hand with other minor, can often be a challenge -- that is, if
: you play inverted minor for game forcing -- jumping to the other minor can
: introduce other problems, so in many cases, you have to either bid you 3 card
: major or bid 1NT, which oft
| w****b
发帖数: 623 | 6 Actually if you are allowed to play a 3-3 fit, you don't necessarily lose.
Think about it: the responder bids his 3 card major as he's weak and short in
the other so afraid of NT, and opener supported for the exactly same reason --
now opponents must have a huge fit in the other major, at least 9 card fit.
Since in this case you also will have good minor fit, if you have good trump
control, the 3-3 fit is in general playable.
minor, or
if
card
【在 c****u 的大作中提到】
: I think playing inverted minor raise, it's more practical to play
: 1D 3D to show 7-9 HCP, 5 diamonds.
: it's usually not a really good idea to play 3D as <= 6 here because
: 7-9 is more important in many competition sequences.
: anyway, 1D 2C is always a big headache of all systems.
: And I really don't like to bid 3 card major at one level, because
: I like to raise to 2M with 3.
: There is no point to mess up oneself's major suit biddings for
: positional considerations.
: Anyway, I think the priority of which
| w****b
发帖数: 623 | 7 What do you think about this sys?
after 1C opening:
1 level response are as usual, walsh style.
2C: inverted without singleton, including invitational hands. forcing to 3C.
2H/S/NT, 3C, natural.
3D/H/S, opener's splinter.
2D: weak jump shift in a major.
Opener responds like multi. 2N: ask.
2H: splinter in a undisclosed major.
2S asks for where the singleton is.
2S: 11-12, invitational. (just like your normal 2NT).
2N: invitational in D.
opener's 3C's non-forcing.
3C: 5-8. Preempti
【在 c****u 的大作中提到】
: I think playing inverted minor raise, it's more practical to play
: 1D 3D to show 7-9 HCP, 5 diamonds.
: it's usually not a really good idea to play 3D as <= 6 here because
: 7-9 is more important in many competition sequences.
: anyway, 1D 2C is always a big headache of all systems.
: And I really don't like to bid 3 card major at one level, because
: I like to raise to 2M with 3.
: There is no point to mess up oneself's major suit biddings for
: positional considerations.
: Anyway, I think the priority of which
| c****u
发帖数: 3277 | 8 The point here is that you may have a huge diamond fit but playing in 3-3
fit 2S.
when you have 4D or even 5D, you play 2S making which is bad for sure.
Another problem is that
1D 1S
2S 3D
this is forcing, so after pd's raise you can't really play 3D anymore.
Partner may have C shortness instead of major shortness:
SAQx HAxxx DAxxxx Cx
SKxx Hx DKJxxx Cxxxx
this hand may make 5D,
but you play 2S, after trump lead, 2S may go down 2.
This is really awful.
If you jump to 3D after 1D,
you would find
【在 w****b 的大作中提到】
: Actually if you are allowed to play a 3-3 fit, you don't necessarily lose.
: Think about it: the responder bids his 3 card major as he's weak and short in
: the other so afraid of NT, and opener supported for the exactly same reason --
: now opponents must have a huge fit in the other major, at least 9 card fit.
: Since in this case you also will have good minor fit, if you have good trump
: control, the 3-3 fit is in general playable.
:
: minor, or
: if
: card
| c****u
发帖数: 3277 | 9 I think for 1C opening, this structure is fine.
but for 1D opening,
1D 3C shows gf in C is just too high for me.
how about this treatment?
1D:
2C: GF in C
2D: GF in D
2H: invitational in C, 2S is relay, asking for shortness, 2NT: balanced,
3C/D/H: singleton in C/H/S.
2NT: to play, 3C: to play, 3D: to play.
2S: invitational in D, 2NT: to play, 3C: asking for shortness(3D: balanced,
3H: short C, 3S, short H, 3NT: short S)
. 3D: to play.
2N: balanced invitation
3C: long clubs, usual
【在 w****b 的大作中提到】
: What do you think about this sys?
: after 1C opening:
: 1 level response are as usual, walsh style.
: 2C: inverted without singleton, including invitational hands. forcing to 3C.
: 2H/S/NT, 3C, natural.
: 3D/H/S, opener's splinter.
: 2D: weak jump shift in a major.
: Opener responds like multi. 2N: ask.
: 2H: splinter in a undisclosed major.
: 2S asks for where the singleton is.
| w****b
发帖数: 623 | 10 You are just not a fan of weak jump shifts :-)
In favor of strong jump shifts, you might want to play this:
After 1D:
2S: sjs in a major, response same as 1C-2S.
2H: invitational in a minor
2S: asking
2N: C, 1 out of 3 honors (at least QJTxxx)
3C: D, 1 out of 3 honors (at least QJTxx)
3D: C, 2 out of 3 honors
3H: D, 2 out of 3 honors
3S: 3 top honors -- opener got to figure it out!
3C: pass or correct.
3D: to play
3H/S, natural.
I doubt the
【在 c****u 的大作中提到】
: I think for 1C opening, this structure is fine.
: but for 1D opening,
: 1D 3C shows gf in C is just too high for me.
: how about this treatment?
: 1D:
: 2C: GF in C
: 2D: GF in D
: 2H: invitational in C, 2S is relay, asking for shortness, 2NT: balanced,
: 3C/D/H: singleton in C/H/S.
: 2NT: to play, 3C: to play, 3D: to play.
| | | c****u
发帖数: 3277 | 11 1C 2S is just a free gift. hehe.
I can live without SJS.
query for shortness is very important for 3NT or 5 m decision I believe.
when you learn your pd has a working short suit, you may find some
very good minor suit contract at 5 level when 3NT has no play.
This is even good for MP.
Because if you play 3NT without information of pd's shortness, opps
are likely to find your shortest combining suit.
I think the information of suit quality is only good for invitation
in the other minor suit.
Some
【在 w****b 的大作中提到】
: You are just not a fan of weak jump shifts :-)
: In favor of strong jump shifts, you might want to play this:
: After 1D:
: 2S: sjs in a major, response same as 1C-2S.
: 2H: invitational in a minor
: 2S: asking
: 2N: C, 1 out of 3 honors (at least QJTxxx)
: 3C: D, 1 out of 3 honors (at least QJTxx)
: 3D: C, 2 out of 3 honors
: 3H: D, 2 out of 3 honors
| c****u
发帖数: 3277 | 12 I think we can design one more relay over 1D 2H(C invitation)
1D 2H
2S(relay, asking for quality)
2NT(bad)
3C to play
3D relay
3H/S: shortness
3NT: no shortness in major.
3C(good, two of 3 top honors)
3D(relay, shortness?)
3H/S: shortness.
3NT: no shortness in major.
3H/S: AKQ in C and short in the majorsuit.
3NT: AKQ in C and no major suit shortness.
if we break the relay, we show value in that major suit and try for 3NT.
【在 c****u 的大作中提到】
: 1C 2S is just a free gift. hehe.
: I can live without SJS.
: query for shortness is very important for 3NT or 5 m decision I believe.
: when you learn your pd has a working short suit, you may find some
: very good minor suit contract at 5 level when 3NT has no play.
: This is even good for MP.
: Because if you play 3NT without information of pd's shortness, opps
: are likely to find your shortest combining suit.
: I think the information of suit quality is only good for invitation
: in the other minor suit.
| c****u
发帖数: 3277 | 13 let's examin the new structure with the hands I gave above:
SJxx HQJxx DAKxx CKx
SAxx Hxxx Dx CAQJxxx
1D 2H
2S 3C
3H 3NT
SJxx HQJxx DAKxx CKx
Sxx HAKx Dxx CATxxxx
1D 2H
2S 2N
3H 4C
pass
3H shows value in H. responder has small doubleton in S, so he signs off.
SJxx HQJxx DAKxx CKx
Sx HAKx Dxxx CATxxxx
1D 2H
2S 2N
3H 4S
5C
responder has a maximum and stiff sp is good, so he splinter 4S here,
opener just sign off in 5C.
【在 c****u 的大作中提到】
: I think we can design one more relay over 1D 2H(C invitation)
: 1D 2H
: 2S(relay, asking for quality)
: 2NT(bad)
: 3C to play
: 3D relay
: 3H/S: shortness
: 3NT: no shortness in major.
: 3C(good, two of 3 top honors)
: 3D(relay, shortness?)
| w****b
发帖数: 623 | 14 This structure starts to make a lot of sense. I like the query for suit
quality on the other minor and query for singleton on your own minor.
However, after 1D-2H, we need to handle the case that opener has D suit (or in
general no C tolerance) and with extra values. Since 3D is signoff, opener
will have to bid either over 3D blindly or start with a relay. Either way it
could be awkard.
Perhaps after 1C-2H, 3C could be treated as extra with good values in D --
opener can always sign off in C wit
【在 c****u 的大作中提到】
: let's examin the new structure with the hands I gave above:
: SJxx HQJxx DAKxx CKx
: SAxx Hxxx Dx CAQJxxx
: 1D 2H
: 2S 3C
: 3H 3NT
: SJxx HQJxx DAKxx CKx
: Sxx HAKx Dxx CATxxxx
: 1D 2H
: 2S 2N
| c****u
发帖数: 3277 | 15 over 1D 2H
2S: showing C support, relay as I stated above, forcing to 4C
2NT: relay to 3C, later we can sign off in D as well.
if we bid 3H/3S, that shows a semi-solid or solid D suit, at most
one loser. also a cuebid, trying for slam.
if we rebid 3NT, that shows balanced hand, 6 good diamonds, inivting
slam.
3C: shows C tolerance with 6+ D suit.
responder can be 3D with fit. cuebid 3H/3S: with good C and value.
or sign off in 3NT with bad C and no D support.
3D: show
【在 w****b 的大作中提到】
: This structure starts to make a lot of sense. I like the query for suit
: quality on the other minor and query for singleton on your own minor.
: However, after 1D-2H, we need to handle the case that opener has D suit (or in
: general no C tolerance) and with extra values. Since 3D is signoff, opener
: will have to bid either over 3D blindly or start with a relay. Either way it
: could be awkard.
: Perhaps after 1C-2H, 3C could be treated as extra with good values in D --
: opener can always sign off in C wit
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