c****u
发帖数: 3277 | 1 1NT 对方争叫后的技术性加倍处理方式.
通常在1NT开叫对方争叫后, 传统的处理是加倍
惩罚, 2NT是来本索尔. 但这个序列有种种问题,
比如你拿了SAxxx HKJxx Dxx Cxxx, 在1NT 2D
之后就非常难处理, 扣叫3D有可能叫高, 不叫又
过于保守. 因此有必要引入技术性加倍.
定义, 在1NT 2低花之后, 加倍通常显示至少一个四张
高花套和至少好的7点或者是8-9点有一个好套.
保证至少一个防御赢墩.
在低限牌力时要求两个高花都能承受.
例子:
1NT 2D 之后:
1 SAxxx HQJTx Dxx Cxxx, double.
pass 同伴的2H or 2S.
2 SAJxx HKTxx Dxx Cxxx, double,
加叫同伴的2H or 2S 到3阶.
3 SKQx HKxxx Dxx Cxxxx, double,
pass 同伴的两阶再叫. 如果同伴跳3H, 可以加叫到4.
4 SKQxx HKx DKxx Cxxxx,
在同伴2S之后叫4S, 同伴2H之后跳3NT.
5 SAKJxx Hx |
|
c****u
发帖数: 3277 | 2 In the final of a regional level barometer pair
This was the last board, we didn't play very well, only scored
a little bit above average. Both vul, My RHO opened 1S,
I had Sx HKxxx DKxx CAJxxx.
Some aggressive bidders may double, I thought it was MP and we were vul,
if we had no fit, 2 level would be very risky for our side, so I passed.
My LHO bid 3C, which in their method is constructive raise in spade.
To my surprise, my partner jumped to 4H!
My RHO bid 4S, I came in with 5C, showing H fit a |
|
g**********y
发帖数: 14569 | 3 North:
SAQxxx H109x DKxx CQ10
South:
Sx HK8xxxx DA CAKxxx
East pass, real bidding is:
South North
1H 1S
2C 4H
/
I think 4H is the best for this hand. But I feel it is not the right way to
bid this hand. Because south has a too good hand to give up slam try.
My question is: what is the right bidding sequence for both N and S that will
explore slam and still safely stop at 5?
|
|
g**********y
发帖数: 14569 | 4 South:
SKxx HAKxxx DQ CAKJx
North:
SAJxxx HQJ DKxx CQxx
========================================
I see above hand at BBO. Obviously, the best contract is 6H.
But how do you reach 6H instead of 6S?
Any thoughts? |
|
c****u
发帖数: 3277 | 5 I like none of them...
I think the best treatment for 3H is to show a constructive raise hand
with 4 trumps. something like this:
Sxxx HAxxxx DKxx Cxx or
Sxxx HKxxx DAxxxx Cx.
It shows about good 6 to 9 HCP, high ODR hands, about 8.5 - 8 losers.
I don't like preemptive raise because the most hands you gain from jumps
are those hands that your side have 17-23 HCP,
if your side has lower than 17 HCP, you usually can't shut out opps.
So it's rather bad that you disclose your information of trump le |
|
c****u
发帖数: 3277 | 6 这个问题可不初级。
首先谈一下牌力衡量，
北的牌算不上低限。
北只有六个输张， 我评价这牌是稍差的6
输张的牌。 但绝对比大量的低限开叫要好。
比如SAJxxx HKxx DQx CQJx, 这个才是基本的低限开叫。
因此拿北的牌在同伴邀请黑桃时永远应该叫4黑桃。
南的牌确实不是很好叫。这牌大牌点不足，
但是四张将牌和单张草花使这牌升值了。 因此可以
考虑处理为邀叫的牌。
因此把这牌处理为1S-3S-4S 其实是相当合理的进程。
甚至即使你又SAJxxx HKQx DKxx Cxx, 这牌4S也还是
非常理想的定约(S不丢 或者H 能取道3副).
至于怎么显示南的牌, 这涉及到对叫牌的不同认识和哲学.
科学派: 也许可以考虑采用1S-2NT: 显示有单张的邀叫,
于是同伴可以叫3C 接力, 然后你叫3D/H/S: 显示C/D/H
单张. 这样同伴就可以决定了.
古老派别: 也许会拿南的牌叫2D.我估计会这样发展: 1S-2D-2S-3S-4S, 我不喜欢
这个序列. 因为2D 比较误导, 大牌实力并不集中在D. 如果是SAxxx Hxx DKQJx CJxx,
似乎更合理一些.
现代派 |
|
c****u
发帖数: 3277 | 7 1NT 2D
So you can probably play 12-16 1 level openings, something like blue club.
this shows 11-12 if you play 13-15 1NT opening.
this is upto your opening style and responding style.
If you open 1NT with 5-3-3-2, 5 card major, 2NT should be
some conventional meanings.
one good convention is to show 6 solid hearts + some meat in side suits:
Sx HAKQJxx DKxx CQTx
It's often hard to define the jump rebid hand types for precision,
because there are not many hands that justify a jump rebid.
For exam |
|
c****u
发帖数: 3277 | 8 well, even in this layout, 4S is still a reasonable contract.
Just imagine how bad 3NT can be when partner holds something like:
SKQTxx HAQx DKxx Cxx,5S would be cold and 3NT goes down on a bad day, whose
fault? 3NT have good play only when partner has marginal values and
some specific high cards, while 4S would be better than 3NT whenever partner
holds Cxx. even CQJx may provide 3NT a better play.
Also, some play 2NT over 2S as gameforcing and asks for detailed distribution,
which might work we |
|
L**o
发帖数: 353 | 9 这次我是名手，达到6阶定约，对手没有叫过牌。
教主首功边花Dx,我有DKxx，这个手工让庄家抽了
半支烟，因为他有D JX。一般我会名手放小，但
庄家是教主多年的搭档，显然比我更了解教主的习惯。
50-50，只能靠运气猜，这次庄家比较幸运，也是我
唯一的一次实战遇到A下低引，并且所有的教科书条件
都具备。 |
|
c****u
发帖数: 3277 | 10 you really need quite a lot from partner to make 3nt:
DKJ, SA and a heart honor, and you can never find that out by bidding
2D, suppose partner raises you to 3D, will you try game?
Most likely, 3nt will go down I belive. Even if he holds
SAKx Hxxx DKxx Cxxxx, 3nt still isn't cold. This is a typical hand
that you need about 27 HCP to make a game because of your weakness in
opener's suit and your HQx doubleton. Change the holding
to Sxxx HAQxx DAKxx CKx, you want to bid here because this hand cont |
|
c****u
发帖数: 3277 | 11 It doesn't look like a tapping game, so I read C2 is for dimaond
switch, declarer may hold SA, HAK and DQTx and CQ. just cash DA and Dx.
You need partner to hold DKxx or Dxxx and HA to beat it. |
|
w****b
发帖数: 623 | 12 Good job. I actually held a little bit more than required: HKxx DKxx CQ9xx |
|
j*******e
发帖数: 2168 | 13 这是个双挤的阵势吧。
明手留 S10,DAx，CQ;
手里留 DKxx
打？ |
|
l****d
发帖数: 228 | 14 再仔细想想，如果红桃K不中似乎没有机会打成了，那只能希望有挤牌的机会，也就是
东家是类似3352的牌型，一个护张挤牌的局势，他必须保护红桃和方块，同时还有草花
的一个大牌。
要是在飞HQ之前王吃掉一个方块似乎没有办法回手。
那就这么打吧，假设东家有红桃K，继续兑现两个王牌，明手垫两个草花，成这个局势
HQ
DKxx
CAK9
Sx
HAJTx
CTx
看东家的留牌，如果是HKxx DJxx CJ，他已经被挤住了。还有一种可能就是方块是44分
布的，这样东家可以安全的放弃方块，不过双挤已经是自动的了。
不管怎么样都是草花T下去打HQ，DK，Dx王吃回来，兑现HA，如果CJ已经出现了，就飞
牌，否则就是双挤。
暂时想不出别的思路。。。。。
如果HK不中，好像没有办法，但是很难想象西家在红桃9xxx的情况下垫掉2个小红桃。
。。 |
|
l****a
发帖数: 272 | 15 那就这么打吧，假设东家有红桃K，继续兑现两个王牌，明手垫两个草花，成这个局势
HQ
DKxx
CAK9
Sx
HAJTx
CTx
看东家的留牌，如果是HKxx DJxx CJ，他已经被挤住了。
没被挤住啊， 明手得先垫牌. |
|
l****d
发帖数: 228 | 16 这个牌挺假的，因为把这个牌改造的有些刻意了，不是实战作品，呵呵。
前面几手防御写出来大家琢磨琢磨。这是坐庄方的牌
首攻H4，HA,H6,H2
第二墩明手出D8,东家跳DK(1)，DT,Dx
第三墩东家出CQ(2)，庄家面临判断，Cx,Cx,Cx
第四墩东家出Cx,Cx，CJ，Cx
第五墩西家Cx,CT,CA,CK
第六墩东家HJ，Hx Hx HK
现在明暗手
SK93
Hx
DQJ9
SAQJ8x
Hxx
已经丢了4墩，现在有两个选择，想办法让明手王吃H或者继续方块的飞牌。
其实牌打到这个地步，已经很困难了，可能选择明手王吃H更加自然一些，寄希望于王
牌的平均分配。当然没有如愿以偿，两个防家的牌是
Sx HQTxx DAxxx CJxxx
STxxx HJx DKxx CAQx
东家的防守非常精彩，
(1):明手拉D8,把自己的DT卖掉了，除非单A，出DK一般不会损失。
(2):草花上的骗张快是定式了，QJ9,AQx甚至有时候Qxx(需快速提取三墩时)都是如此。
庄家运气不怎么样，又碰到强硬的防御，结果有些可怜。
回过头来看，如果第二墩桌上放DQ结果会如何？当东家的大牌是DA时，对他的 |
|
l****d
发帖数: 228 | 17 加一个小小的注解。
打王牌QK发现14，观察东家的垫牌，看他的垫牌是不是表示D上面的实力或者某种牌型
。如果东家的垫牌没有表明对方块的任何兴趣，还有一个防守方犯错的机会。
当东家持有1642的时候，可以从手上立刻出Hx，考验西家。如果西家的牌是类似
SJTxx Hx DAKxx Cxxxx 或者DAQxx这种，他很可能选择不王吃而垫掉一个方块，寄希望
与庄家4333的牌型。毕竟如果庄家是SAKxx HKxx DKxx(或者Qxx)CAxx这种不王吃就是对
的。
从成功的机会来说，应该还是打C33可取的多，呵呵。 |
|
C*****9
发帖数: 147 | 18 如果把手上牌改为:
Sxxx
HKxx
DKxx
CKxxx
你叫3H会感觉心安理得，再好一点你可能就2S了。而你现在的牌差不了多少，打同伴有
局方6张H争叫的话，我认为在IMP赛制中3H是可取的。
正好同伴也是有局方2H争叫的鸡肋牌:
SA83
HAT432
DQ5
K54
可能这手牌更适合防守，直接争叫2H有些勉强，当然2H和3H与pd间风格有关。 |
|
l****d
发帖数: 228 | 19 庄家多半是5431,从庄家的打法来看应该是SAxxxx，多半还有HA，如果还有DA的话，因
为3-3的红桃分布，正常来看是打不到的，也看不出什么地方可以给庄家绳子不让他去
尝试红桃的33。
那么打宕的机会就是庄家的牌是SAxxxx HAxxx DKxx Cx
如果D是KTx的话，这时候回D就损失了，看起来最保险的防守时继续SQ。 |
|
i****e
发帖数: 642 | 20 Nice analysis. The choice between 1NT and 2C (we can almost exclude 2D) is
clearly related to a lot of bidding structures. I like 1D-1S-1NT-2H as non
forcing, but I know some players treat it as one-round forcing. This will
affect the choice.
The chance to miss heart game is not high. If patter has game forcing value,
he will bid 2H as 4th suit anyway. Then you can raise to 3H. 2C could miss
4H game if partner has invitational hand, and miss a part score in hearts,
since after partner's 2D (may ... 阅读全帖 |
|
