l*********r
发帖数: 65 | 1
老式的(其实也不老)转换方式
1NT-2D-->转换到2H
1NT-2H-->转换到2S
有一个死角，就是类似这样的牌
AKXXX
XXX
X
QXXX
按照大路的方法，1NT以后你转换到2S，可2S过来以后你怎么办？再叫3C不够(3C逼
局)，那只有扭曲地再叫2NT显示“5张S邀局”？那同伴要拿3张S回3S岂不已经到三阶了？
相反这种牌在不用转换的古老时期却容易得很，就用
1NT-2C-2D-2S显示这类“5张S邀局”。
“现代”的体系这个过程，1NT-2C-2D-2S，不是Garbage Stayman表示停叫，就是至
少5-4高花邀局的，所以“现代”的路数这样还保证另有4张H。
所以，解决之道就是干脆放弃“现代”的方法，回到从前。
那么既然“5张高花邀局”，已经可以用1NT-2C-2D-2M的方式表示，也就没有必要再
用1NT-2D-2H转换-2NT来显示“5张高花邀”了，因此2NT可以腾出来赋予另外的含义。
一些目前比较前卫的无将结构，比如Scanian NT(瑞典无将)，KERI(克林格NT)，都
已经将1NT-2阶转换-2M-2NT赋予新的含义。前者的1NT-2D-2H- |
|
c****u
发帖数: 3277 | 2 This 2NT is called Jacoby 2NT, showing a good hand with 4 card support in
major and normally no singleton in side suits.
For the opener,
any new suit at 3 level after 2NT is to show a singleton or void.
rebid of the major showing a good 6 card suit without singleton or void.
rebid of 4M shows a minimum opener.
4 lever new suit shows a 5 card side suit. 3NT shows a balanced hand,
above 15 HCP.
That's it. |
|
j*******e
发帖数: 2168 | 3 I am seeking some gadget after opps' unusual 2NT. Can anyone recommend one?
Thanks!
e.g. First seat, you have
S: K9x
H: Jx
D: Axx
C: A9xxx
and open 1c, LHO bids 2NT showing 2 lowest;
Pd has
S: Axxx
H: AQxx
D: -
C: KQxxx
What should he bid? |
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a*******s
发帖数: 295 | 4 This is one of my old article.
发信人: arrows (箭笑江湖), 信区: Bridge
标 题: 1NT 结构的小小改进
发信站: 瀚海星云 (Sat Mar 6 09:36:45 2004)
现在常见的1NT应叫结构中, 为4441的进局牌力设置了特定的
叫品。（2NT转移草花，再叫表示单张）个人认为其效率不高，
因为这种牌出现几率低，即使真的碰上，也完全可以简化并入
到其他叫牌进程中。
另外，在常见的1NT应叫结构中，似乎对低花单套满贯兴趣的
牌和均型满贯兴趣的牌没有明确的叫牌处理。
所以我建议，在保持原有骨架的基础上，对此作点改进。
司台曼和转移高花照旧，3阶的应叫也照旧：3C、3D自然邀叫，
3H、3S我个人比较喜欢自然单套，满贯兴趣。
2S：询问牌力。开叫方如果不准备接受成局邀请就叫2NT，如
果持高限牌就在低花中作出示选。此后应叫方的再叫：
PASS：止叫.
3C: 双低花的示弱叫。
3D： 方块套的示弱叫。
3M： 自然4张套，一般否认其他5张套，否认对另一高花
|
|
b***y
发帖数: 2804 | 5 IMP双有，你做庄4S，两手牌如下：
K985
K6
AKT3
J63
A7432
AQ5
J98
K4
叫牌过程（对方保持静默）：1S-2NT-4S
2NT=Jacoby raise，表示至少四张以上高花支持，一般较均型，逼局
西家首攻SQ，东家跟出S6。你再拔一轮将牌，东家垫了张梅花。你如何继续？ |
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c******y
发帖数: 26 | 6 Yesterday, I played 1 hand.
I opened 1h, my partner answered with 2nt,
because my d is void, I bid 3d, he bid 4nt, I answered with 5d, he bid
5h, and I stopped. Finally, we found we had 6h.
Do you think 4nt is a good bid? I think, he should have shown his control
instead of bid 4nt. Because my d was possible to be void or singleton. 4nt
can't give us enough information.
Or maybe I just can go to 6h with my void d after his 5h? |
|
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p*y
发帖数: 61 | 8
2NT 是强制同伴不能选高花，而且你几乎不可能见到同伴选3D 除了 4-4-3-2；
另外4-4-2-3 3-4-3-3的时候3C 应该没有3H好打吧
总之，我仍然认为，这种情况的平衡应当是点力够而牌型不好（比如平均型)
比如如果你有4张破黑心，哪怕是4-3-3-3 也可以x让同伴选，
点力弱而靠牌型平衡亏的时候多 而且很容易输大分 |
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c****u
发帖数: 3277 | 9 2NT yah.
if pd rebids 3D which shows a singleton, I'd cue 4C, blah blah... |
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f*o
发帖数: 168 | 10 tell me more, what 2nt means, and any convention after that? |
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w**n
发帖数: 244 | 11 Jacoby 2NT is use for game forcing, showing 12+ pt and trump supporting.
Opener should rebid his singleton or void at 3 level.
If opener rebid his major suit at 3 level, it shows he has extra length
and no singleton.
3NT to show 15-18 pts, no singleton
If he has another strong suit (4+), he should bid out at 4 level.
With minimum, he shoul just accept game invitation. |
|
c****u
发帖数: 3277 | 12 unusual vs unusual is popular.
suppose your partner opens 1H, your RHO bids 2NT,
now your double shows that you want to penalize opponents in at least
one suit. your 3C shows a good hand with hearts, at least invitational.
3D: shows good hands with spades. 3H: competitive.
3S: construcative, nonforcing.
The basic principle is that:
cuebidding opp's lower suit shows a good hand with the lower rank
unbid suit;
cuebidding opp's higher suit shows a good hand with the higher rank
unbid suit.
With you |
|
c****u
发帖数: 3277 | 13 After transfer, it's often very important to know the exact shape
of opener's to decide how high and what suit to play. So it makes
sense to play 2NT as artificial gameforcing with balanced hands
or 4 card side suit.
With invitational hands, one can bid 2C then 2S later to show it.
1N 2H
2S 2N(asking)
3C: 4+ clubs, may or may not have support.
3D: asking
3H: 3-3-3-4 or 3+ spades + 4+ clubs+doubleton.
3S: asking
3N: 3-3-3-4.
4C:3-3-2-5 or 3-2-3-5.
|
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c****u
发帖数: 3277 | 14 With H suit, you can use 1NT 2D 2H 2S to relay.
To invite, you can just bid 2NT over 2H. |
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s*****a
发帖数: 3693 | 15 I thought 2nt over 2h means got a weak h suit. If h suit
is strong, why not 3h invite? |
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l*********r
发帖数: 65 | 16
In short, yes, because most "modern" NT structure, have applied 1NT-2S as
balanced invitational hands (plus some sort of other hands). Therefore, you do
not really need 1NT-transfer to major-accept-2NT as "balanced invitation with
5-card major".
The real beauty of Keri is you can invite with 4/5-card major at 2-level.
You can't invite with Keri holding minors, but it can ben solved by including
such as in the 1NT-2S part. |
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d***a
发帖数: 57 | 17 option 1: >50%
2nt 3nt
option 2: >30%
2nt 4nt
option 3: >10%
2nt 4nt 6nt
option 4: >5%
2nt 4nt 5nt 6nt
option 5: >0%
2nt 4nt 5nt 7nt |
|
f*********p
发帖数: 643 | 18 再来。
4） 3D
可能叫品：3D, 4C, 5C,
这手牌， 直观是 5C， 不过别忘了， 你的点都是控制， 同伴已经支持 C， 至少 5
张， 满贯机会不小， 即时同伴是低限， 叫回 4C， 还是做 5C， 要是同伴， 扣出 H
, 肯定是贯， 同伴支持4D， 扣 4S, ， 让同伴决定 有没有H 控制。
4C, 太保守了。
5C，没有进去心。
看错了抱歉， 叫 4D， 希望同伴扣 H, 同伴回 5C， 5D， 就做 5C， 5D。
5） 2NT
可能叫品， pass, 2NT, 3C.
pass , 你可能作5-1 S, 如果 2S 做成， 2NT不差多少， 没有将吃吃价值。
2NT， 这是 MP game.
3C, 太稳妥， MP game , 赌 NT 吧， 这个有 3C = 110, 2NT= 120。顶分低分之差。 |
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p***r
发帖数: 20570 | 19 This 2NT to show 6-4 shape thing is not very attractive after 1S 2D, because
you can often make off shape takeout doubles to land at a 8 card fit at
three levels or have a chance to double opps' aggressive opening and raise.
Also, for hands with a void in opp's 8 card fitted suit, players often
shouldn't compete over aggressively at 2 or 3 levels, because your partner
often knows that you have a void and still refrains to bid on. So you should
often make a takeout double with two way hands that ... 阅读全帖 |
|
y****e
发帖数: 71 | 20 自然制是有点问题，对于这副牌。
2NT固然好于2C。2NT-3C-3S-4S后，是不是4NT问A还是有些把持
不定。南可以只有3-5点，照样支持4S。
1D开叫的毛病是非逼叫，可能被Pass。
2C毛病更大，2C-2NT后，简直没法办。出套要有5张，3NT肯定完
蛋。
精确1C开叫，1C-1NT后，还可以2NT，然后南如3C(巴朗或斯台曼)，
找到S配合后，因为以知道南8-10点，可以放心4NT问A。
所以，我猜测实战，如果你能叫到4S并打成13墩，肯定得分超过
平均分。 |
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c******l
发帖数: 51 | 21 14.对2C开叫的应叫
开叫 大牌点
2D ≥11点：约定叫和逼叫（如配合）8点即可应叫
开叫者再叫：
2H/2S 4张次长套。
2NT 另外两套花色有止张。
3C 6张套，其余一门有止张。
3D 5张套D（6张C，5张D）。
3NT 6张坚实的长套。
开叫者叫2NT或3C后要求开叫者报出止张。
3D 应叫者再叫。
开叫者再叫表明： 2NT之后 3C之后
3H H和D套 H套
3S S和D套 S套
3NT S和H套 D套
2H/2S 8～10点：5张套或更长；邀叫开叫者持低限牌或帮
张差，则不叫。
2NT 10～11点：邀叫3NT。
4C |
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b***y
发帖数: 2804 | 22 有几种不同的处理方法。我建议你看一下美国标准黄卡(SAYC)的体系，在BBO软件的资
料部分就能找到。这是一个在北美通用的自然体系，在BBO上打牌的，如果没有特殊约
定，都应该遵循这个体系叫牌。
在SAYC体系中，1M-3M是限制性的加叫，表示邀局牌力。高花配合且有逼局实力时，有
三种手段：
1) 四张以上将牌支持，相对均型，叫2NT。这种1M-2NT是SAYC中的约定叫，称为"
Jacoby 2NT"，并不是自然无将叫品，而是表示高花至少四张支持的逼局牌，同伴不能
PASS。这是一个很重要的约定叫，因为它弥补了采用限制性加叫之后造成的缺乏逼局加
叫手段的问题。Jacoby 2NT之后的应答结构也是约定性的，不是自然手段，具体请参阅
相关资料。
2) 将牌四张以上支持，旁套有单缺，可以采用一种“爆裂叫”(Splinter)的约定叫品
。在这种约定中，双跳叫新花表示对同伴开叫花色至少四张支持，所跳叫的新花为单缺
。比方1S-4C，1H-3S，等等。
3) 先叫一门新花色逼同伴叫牌，再用进局跳叫等手段显示实力。或是从强跳应叫开始
起步。这些手段一般用于将牌支持只有三张（此时不能使用Jaco |
|
l****a
发帖数: 272 | 23 1D-2C;2NT 我自己是这么用的, 否认D5+, 承诺双高花挡张, 不否认4高花.
接下来, 应叫人叫3S. 怎么了?
:之后2D保证５＋张, .... 2NT可以是5332牌型
这俩怎么看着是矛盾的? 2D 和 2NT 哪个优先? 5332 你叫2D 还是2NT?
5332 |
|
b***y
发帖数: 2804 | 24 用好/坏2NT，自然是没有问题了。不过由于种种原因，好/坏2NT不像以前那么流行了，
越来越多的牌手把2NT用来显示某种牌型，比方这里叫2NT可以显示4-6的低花（直接叫
3C则显示5-5，且不需要很多实力）。这大概是受到牌型重于牌点的理念影响。持4张红
心支持的时候，大家似乎宁可粗糙一点，3H是竞争性的，而原本邀叫的牌现在就直接4H
了。 |
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m********w
发帖数: 69 | 25 这牌在无敌手叫牌下有些棘手
开2c的话,以2d过渡的话,再叫只能是2nt,一个有欠缺的2nt
2c-2d-2nt-3sp(minors stayman)-4c-6c |
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T*y
发帖数: 50 | 26 yeah.. 2NT is good for opening. In natural system,
2NT is not so strict as 1NT opening. 5-4-3-1, 4-4-4-1 is OK
for 2NT. |
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T*y
发帖数: 50 | 27 你说的原则是不错的，但是强开叫本身的概率已经很低
了。在加上诸多限制，不是太好。使用标准的自然制的话，
大概就是叫2NT了.
实际上我自己使用的自然制里2D是高花色弱2或2NT牌力
以上均型(22HCP+)或4-4-4-1强牌(22HCP+, 注意单张上非A
的牌张要减值), 其他所有的强牌(有5张套, 21HCP+)都是2C
开叫，2H/2S/2NT是作为双套开叫的。
所以我和自己同伴叫的话，是开叫2D的，然后叫出红心
单张。就可以直接去6S了。不过就是叫牌体系稍微复杂了一
些，多加了点接力叫。呵呵。:)) |
|
l****y
发帖数: 58 | 28 四,约定叫
1,马瑟问叫
1H--3H--3NT 1S--3S--3NT 3NT为*(问应叫人单缺花色)
2,成局试探叫
1H--2H--2NT, 1S--2S--2NT, 此2NT为成局试探叫(问应叫人短套,及高低限)
应叫人再叫新花为 双张 且非低限.
应叫人再叫3H,3S 无牌型或低限 示弱!
应叫人再叫3NT 均型,高限.
应叫人再叫四阶新花, 单张,高限.
3,长套邀叫与点力邀叫
1H--2H--3H--4H 与 1H--2H--3C(3D)--4H 有着明显的区别!
3H为点力邀叫,要求2H高限进局;而3C(3D)则要求对做第二套有帮助进局,更要求点力的位置!
4,小黑木
1H--2H--3NT or 1S--2S--3NT 此3NT为小黑木(答叫同黑木)
5,"德鲁赖"约定
在同伴第三家开叫1Hor1S后,应叫2C为"德鲁赖"约定(有次开叫点力,且有质少三张支持)
欲探明同伴是正常开叫?轻开叫?
开叫人再叫回2Hor2S为示弱轻开叫,其他则至少是正常开叫.
6,反冲式罗马关键张问叫
在1 |
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l****y
发帖数: 58 | 29 1、开叫1NT后
A、对方争叫花色后
加倍
一般为惩罚性。
二阶花色
自然叫，非逼叫(若对方争叫2C表示双高除外)。
三阶花色
逼叫，有进局实力。
2NT
要求同伴叫3C，以便使自己在三阶水平上出套。
直接扣叫
有打3NT的牌力，问同伴在此花色上有无止张。
先叫2NT后再扣叫
有打3NT的牌力，但自己只有半个止张。
另：
1、对方二阶水平争叫后，四阶水平上的转移叫，4C及4NT叫品仍 保持原有意义；
2、若对方争叫2C表示双高套，则2H、2S应叫表示有2NT实力(10- 11点),所叫花色有止张。
B、对方加倍后
再加倍
8点以上。
2C
要求同伴叫最好的高花或5张D。 |
|
c******l
发帖数: 51 | 30 1.≥16个大牌点的开叫
开叫 大牌点
2NT 22～23点：均型，无5张高套。
1C（逼叫） ≥16点：所有其它任何分布的牌型。
2.对1开叫的应叫
开叫 大牌点
1D 0～7点（消极性）。
1H/1S/2C/2D ≥8点：至少5张套，逼叫成局，除非联手牌点
是低限，且已发现不
配合。
2H/2S/3C/3D 持有4—4—4—1型牌，应叫者应跳叫其短套。
这是一种不寻常的
积极性应叫（如1C—2S表示应叫者有一S单张)。
1NT 8～10点：均型，无5张高套。
2NT 11～13点：均型，无5张高套。
3NT 14～15点：均型，无5张套。
2NT ≥16点：均型，无5张套。（在以后的再叫中
区别11～13点的牌）
4H/4S |
|
c******l
发帖数: 51 | 31 10.对1D开叫的应叫
开叫 大牌点
2D 11～15点：应叫者无4张高套，至少4帮张逼叫性，开叫
者的再叫
应报出高套止张；如再叫2NT，表明两高套均
为止张。
3D 10点左右：D有5张或更多的帮张，先发制人，非逼叫。
1NT 6～10点： 均型，无4张高套哦，非逼叫。
2NT ≥16点： 均型，开叫者再叫3C表示低限（11～13点）
且2NT应叫者
应再叫3D（约定性）要求开叫者报牌型，任
何其它再叫
都表示高限（14～15点）。
3NT 13～15点：均型，无4张高套。
跳叫新花 ≥16点： 持有好的5张（一般更长）套，可望满贯。
表明D将牌配合
或自己有将牌，足够长的开叫套（再叫时弄
清）。
1H/1S ≥6点： 4张套或更长，逼叫性。
2C ≥11点： 4张套或更长，可能有4张 |
|
c******l
发帖数: 51 | 32 13.对1NT开叫的应叫
开叫 大牌点
2C 8～11点：非逼斯台曼，如持有两高套，则先报。应
叫者的
任何再叫，均系邀叫成局。
2D ≥12点：逼叫斯台曼。
开叫者的再叫如下：
2H/2S 4张高套（两套时先后）。
3C/3D 5张低套（5—3—3—2）
2NT 二者皆无。
开叫者再叫2NT之后，如要求开叫者进一步报出牌型，应叫者
应再叫3C，开方答叫如下：
3D 4张D（3—3—4—3）。
3H 双4低套，3张H（2—3—4—4）。
3S 双4低套，3张S（3—2—4—4）。
3NT 4张C（3—3—3—4）。
2H/2S 0～7点：5张或更长套（开叫者不叫）。
3C/3D 0～7点：6张套；短而强的旁套（开叫者不叫）。
2NT 10～11点：无4张高套；邀叫3NT.
3NT 12～16点：无4张高套。 |
|
c****u
发帖数: 3277 | 33 Ju is aggressive in this hand.
In 2/1,
1h - 2c - 2h - 3h - 3sp - 4c -4d - 4s -5h end.
2nt can not be J-2nt, J-2nt requires 4 cards support. |
|
w****b
发帖数: 623 | 34 2S slam interest and 2NT transfer doesn't seem to be
coherent. After minor staymen or transfer you have plenty
space to show slam interest.
More technical details. A few methods that are popular
today:
1. 2S MSS or D bust (if after 2S, responder rebids 3D, it
shows a garbage hand with long D suit). 2NT transfer to C
(sign off) or 4-4-4-1.
2. 2S, 2NT transfer to C and D respectively. Opener can bid
one lower to show super-acceptance. Eg. 2S-2N shows super
acceptance in C.
3. 2S transfer to C or D |
|
g**********y
发帖数: 14569 | 35 From your pd's perspective, I think 2H is better, because --
In standard system, 1D-2nt shows 19-21 points, very likely 2nt would push your
pd to 3nt.
But 2H shows 17+, now it's your pd's turn. He knows you are 17+, if he respond
2nt, it's a sign that he probably doesn't has extra value. If he bid 3c, I
would take that as invitation for 3nt and go for it. If he bid 3D, I would
most likely pass.
pd's 1nt shows 6-10 points and no 4 cards in major. Given that, I think game
chance is slimmer than pa |
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c****u
发帖数: 3277 | 36 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 |
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c****u
发帖数: 3277 | 37
no, we have no way to show 6 good clubs and 3 diamonds if we reverse.
if partner raises 2D to 3D, we would have a big headache to get to 6C which
could offen be a better spot. I don't like my 2NT, but it was just a tough
hand for our system. 1NT opening is kind of conservative, 1C then 3C
is possible, but we still may have a problem if partner bids 3S as forcing.
Once I bid 2NT, we do have some easy gadgets. Thus, I believe 2NT was the
closest bid to show my strength and general distribution, t |
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c****u
发帖数: 3277 | 38 We still invite, but we invite only with a narrow range of hands.
For example, for this kind of sequence:
1C 1S
1N ?
We invite only with good 11 and normal 12,
we pass 1NT with normal 11 or less, bid 3NT with good 12 HCP.
So you don't play many 2NT here, which is important, because very often
you either make an overtrick in 2NT or go down in 2NT.
We may miss a game with normal 11 facing normal 14, but in that case,
3NT might not have a good play when we find no fit.
The same is true for 1S p 2S |
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g****o
发帖数: 1284 | 39 自然现在的无将阶梯一般是：
15-17 1NT
18-19 先开一阶花色，跳叫2NT
20-22 2NT
23-25 先开2C，再叫2NT
26-28 先开2C，再叫3NT
etc. |
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t***n
发帖数: 546 | 40 其实低花转移叫和低花斯台曼可以不冲突的。哈代的2/1就约定2S为低花斯台曼，2NT转
移3C。而原本2NT邀叫改为2C斯台曼，无论对家是否回应有4张高花都再叫2NT来邀3NT。 |
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v*******e
发帖数: 3714 | 41 第一手我觉得当作开弱叫处理，所以是第一次也是最后一次加入叫牌。万一叫3S没挡住
对方叫牌进城（让他们找到配合）
那也不可能再加入叫牌了，毕竟这是原则。。。
第二手，我改过一次（编辑帖子）。第一次我选择2NT，但是回头一看在2D等待叫的情
况下，自己一定要尽可能明确，在
没有D挡张的时候硬叫2NT（因为“预知”3NT的进城），最坏是3NT叫上了同伴的D不够
档。自己的H和C都叫劲，现在支
持S虽然有冒充三张的嫌疑，但是Ax其实比xxx有时更有效得多。更何况同伴很可能是在
对H和C都苦无配合的情况下纠
结。。注意：不必担心同伴只有5个S，因为那样的话同伴下一口应该是2NT（假设有D挡
张）或者3C（通过支持C来否认S
的长度）。。当然也有可能进程是同伴开始4D扣叫。。。。
第三手，拒绝加倍的理由就是没有S。4D实在太冒险。这牌防守实力不坏。可是呢，如
果同伴“平衡性”加倍了之后恐怕还要
小小纠结一下。自己错过局的机会实在太渺茫，所以我会决定打防守。
第四手，我觉得加倍是因为正分。4D和5C都是报自己的牌力。不太懂3S这样的叫品。。
第五手，我宁愿pass也不想叫3C。但是pass实在太软弱 |
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b***y
发帖数: 2804 | 42 2．3D是啥含义？Checkback？我的牌已经大致叫清楚了，除非同伴3D是实叫（显示５４
４０牌型），我不该再叫牌了。
3．PASS．我认为加倍是大错特错，可能让对方打对王牌，或是逃到4NT．我记得以前有
一次复式赛，队友拿着QJTxx的将牌加倍对方满贯，结果人家逃到6NT做成。
4．PASS．2H might work, but I think it is a poor bet. It is unlikely we can
buy the contract, and you don't even want partner to lead hearts.
5．头疼的问题。我会从加倍或3S里面选。Pass不大会得好分。如果我的黑桃再稍微强
那么一点点，比方SJ变成SQ，我就会叫3S．实际这个牌我倾向于加倍，这是个相对灵活
的叫品，尤其是保留了同伴罚放的可能。
6．2S．This is clear-cut even in IMP, especially with a singleton heart.
7．PASS．不明白这个牌为啥不开叫1NT？？现在有两个问题，一个是估计别桌开1NT之
... 阅读全帖 |
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b***y
发帖数: 2804 | 43 I think every bid was wrong (sorry for being frank).
1NT is off-shape, but that by itself doesn't create disaster yet. By bidding
1NT, you express the general value of the hand, but you also take the risk
of playing in 5-1 fit (which is the reason I wouldn't bid 1NT). Now you have
to accept that the bid didn't work out as well as you hoped, and honor the
transfer. When you bid 2NT, it should logically be interpreted as "super
accept", at which point partner has every right to jump to 4S with his... 阅读全帖 |
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p***r
发帖数: 20570 | 44 Some thoughts on one hand
This hand was played in the bbo money bridge game. You play with a robot,
your LHO also plays with a robot. The score format is total points.
You hold Ax K9x xx AKQ8xx , both white,
The first question is what to open?
Of course 1NT is a possible choice. However, this hand is probably
too strong for 1NT because of the strong suit in clubs. You don't need
a lot from partner to make 3NT. So you should open 1C, even play with
a robot.
The bidding develops :
1C p 1D 1H ?
Now... 阅读全帖 |
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p***r
发帖数: 20570 | 45 Well, then you can't vote for a natural 2NT in bidding polls with hands like
, you may miss huge H fit if you bid 2NT to show 6-4 in minors. And, many
play this 2NT to show 4-6 in H/D. All in all, forbidden to double with a
void in this sequence is simply silly, because your partner wouldn't pass it
without good spades. |
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b***y
发帖数: 2804 | 46 It's OK, I miss penalty when partner has very strong spade holding, I also
cannot bid natural 2NT, but I get to compete more frequently with shapely
hands. It is very rare that I want to defend low-level contract with void in
their suit anyway.
BTW, 2NT doesn't necessarily show 6-4 in minors. It just shows a secondary
suit. With 4-6 in H/D I can do 2NT too, if partner bids 3C I will correct to
3D, now partner knows I have 4 hearts.
On this particular hand, partner can guess that I have void, so ... 阅读全帖 |
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b***y
发帖数: 2804 | 47 Since 3D is not forcing, using 4D here as invitational is very inefficient,
especially at MP. I would read 4D as forcing. But how can a hand that only
bids non-forcing 2NT now forces to game (and bypasses 3NT at MP)? It must be
a hand that is full of controls, and gets improved by the 3D bid. Even with
AKx/Kx/AKxxx/Kxx, bypassing 3NT is still strange, since this hand can bid
3S to show doubt on 3NT, but let partner decide. So the 4D bid shows strong
preference in a suit contract. I think that it... 阅读全帖 |
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c***n
发帖数: 1511 | 48 I think maybe the 3D was a little too strong, especially in MP and I assumed
that 2NT was not forcing.
P could have 4432 with 2 hearts and 4 clubs, 2NT seemed to be the best deal
for that hand.
Note that P didn't X 2c again, neither did he cue bid 3C, so 2NT was most
likely not forcing.
Given that, I'd have to assume that P's 4D got good Diamond match, so his
hand was probly 4243.
In MP I would pass, in IMP I might bet 5D, most likely not. |
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l****a
发帖数: 272 | 49 还是先说2NT 吧. 哈代和劳伦斯都明确表示过, 2NT 否认D 5+.
1D-2C 后 2D 的优先级最高. 之所以这么设计, 原因是很明了的.
但是那种偏牌, 5332, 长套孱弱, 短套坚固的, 因为他们俩的书都是属于普及和入门级
别的, 自然对这类难题也就回避了. 但是呢, 这类牌例, 也只能算特例了.
解决方法在开叫, 可以有
a. 14p 的话, 开1nt 算了.
b, 12p 的话, pass.
c, 13p 的话, 把一张D 插在H 套里, 再开叫.
接下来, 说 1D-2C; 2NT-3S; 3S 就是寻求 44 配合的S 了.
pd 可以选择打3NT, 也可以选择打 4-4 甚至 4-3 的 4S.
这个世界本身就不是完美的.
Axx |
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p***r
发帖数: 20570 | 50 JT9xx is a nice suit facing some sort of support. facing Axx, you have good
chance to lose only one trick. Facing Kxx, your chance of losing one trick
is still significant. Facing Qxx, you need to lose AK to set it up and NT is
generally dangerous because of your weak D holding. Facing xxx, you may
want to just play 2H instead of 2nt because you don't have source of tricks.
5-4-2-2 is a suit oriented shape, especially when your partner opened your
4 card suit.
2NT is so bad in many way. If partn... 阅读全帖 |
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