v**********e
发帖数: 1295 | 1 1NT叫得挺好，现在2S接受转移就是了，同伴说不定一会儿再叫2NT/3NT，看起来都不差。
唯一可能的坏结果就是打2S，同伴六张的可能性不大。
也可以考虑假装没明白2H是转称，直接叫2NT，同伴高限会叫进局，低限就PASS了，大
概也不会丢什么。 |
|
v**********e
发帖数: 1295 | 2 3D之后，从北的持牌看并不乐观，四阶未必安全，D配反而暗示高花易被攻穿，即使D是
通的，很可能红心上的墩还未做出黑桃就漏了，毕竟点力是很边缘的。
2NT邀请表明红心没问题，而且D的张数配合与否对北并不是很重要，有个A或T就够了，
D不配反而更有利,所以2NT邀请看起来更乐观。 |
|
l****a
发帖数: 272 | 3 2C 起步是模糊性邀请
2D 起步是模糊性逼局
这些模糊性都有可能是存在潜在配合的, 或者不能简单描述的牌.
其他的都可以直接描述, 比如半坚固以上的套, 或者均型
看几个进程
1C-1H; 1S-2NT
1C-1H; 1S-2C; 2D-2NT
1C-1H; 1S-3NT
1C-1H; 1S-2D; whatever-3NT
如果把上面的1H 换成 1D 的话(假设使用walsh),
这些进程就更值得品味了.
实战中,我自己的体会,最大的弱点也正如bucky 所说, 放弃了2C 的自然含义.
话又说回来,如果没这个弱点,其他的约定叫可能就大多得淘汰了.
xyz如果没有优点, 这个约定叫也许根本不会诞生的.
XYZ |
|
p***r
发帖数: 20570 | 4 This treatment is certainly very simple and practical. Reserve the double
for penalty is good in the sense that if you play penalty double, opps may
not overcall as much as before to disturb your 2/1.
The simplest treatment is still to play double as penalty and pass as hands
that is defensive oriented, but no trump stacks. Of course, the meaning of
2NT right away is open to discussion. IMO, it can be a transfer to C and all
bids by opener can be transfer oriented started from 2NT, which would
u... 阅读全帖 |
|
p***r
发帖数: 20570 | 5 This treatment is rather bad. So with a true penalty double hand, responder
would double and opener may pull with doubletons. That would allow your opp
to escape from many huge penalties.
As I said, the best treatment here is to play double as a transfer to NT,
which can be passed by 4 spades. Pass to show a penalty double hand.
Also, your worry is not necessary. If you play direct double as a penalty,
responder can bid 2NT with many balanced hands without a stopper after
opener passes, since 2N... 阅读全帖 |
|
v**********e
发帖数: 1295 | 6 关于持什么样的牌适合用Jacoby 2NT来答叫，四张支持是必须的，牌型呢？
按照设计者的最初想法，我理解大概是用来解决强均型应叫牌的，通过对开叫人牌型点
力的询问，来探索满贯。由于开叫人的牌型对叫牌前景至关重要，因此放弃应叫人自身
的描述而用类似接力的方式澄清开叫人的信息，这也符合平均型原理的基本思想。
不过不少专家也支持持非均牌的J2NT应叫，比如本月Bulletin上一副牌：
AK743
QJ82
-
AT63
面对同伴1H开叫，近半数专家选择用J2NT应叫。但这种处理方法还未必能称作主流，本
题的投票结果相当分散，2S/1S/4D也都有支持者。
这手牌对于4D或许显得太强了，空间也浪费掉了；1S没有建立逼局也没表示出支持，效
率也比较低，空间倒是省了，但被干扰的可能性增大；对于2S，这手牌有点弱套也不太
好。这样似乎2NT是最好的选择了。
但对于如下这手牌面对1H开叫，有可用的低花做2/1，你是否还会选择J2NT呢？
S AK95
H KQ84
D AJT72
C - |
|
v**********e
发帖数: 1295 | 7 举两套例子
(2NT=C PRE)
3C=D PRE
3D=H PRE
3H=S PRE
3S=Gambling 3NT
好处主要是庄位，特别是拼搏性3NT的庄位。
3C=C or D PRE
3D=decent PRE for H or S
3H=bad PRE
3S=bad PRE
好处是高花套的阻击可将建设性和非建设性分开。
坏处都是牺牲低花阻击的精确性或者占用2NT作阻击。 |
|
b***y
发帖数: 2804 | 8 As I mentioned before, I prefer overcalling 2D then bid 2NT when it comes
back to me (2NT is not natural, ought to show 6-4 shape). In any case, I
will never say 2D+X is the ONLY possible sequence... |
|
p***r
发帖数: 20570 | 9 First, AQJxx may only count for two sure trump tricks, with three diamonds,
it's still not clear partner should pass facing hands like - AKx AKxxxx
xxxx. However, your partner doesn't have to have three diamonds, he may hold
a singleton diamond, like
AQJxx xxxx x xxx, this hand defends extremely well.
Facing partner's void, AQJxx is not a strong holding, but AQJ98 or KQJ98 is.
Partner would usually take this kind of things intelligently and make good
decisions based on his diamond length and spa... 阅读全帖 |
|
a****s
发帖数: 524 | 10 2C 后， 直接2NT/3X 都是邀请，2C-2D-2M-3m 是逼叫。
2C-2D-2M-2N 是问叫，应该也是逼局的。
如果应叫人没有4张高花，也没有5张方块， 则草花至少有3张。现在如果应叫人没有红
心挡张,又不适合2NT问叫，他总是可以叫3C或者3D, 所以3H扣叫是保证了黑桃配合。
? |
|
p***r
发帖数: 20570 | 11 Partner's 4D is a very strange bid in MP. You didn't show much and he just
bid 4D to bypass 3NT, so he can't hold 3 hearts here and most likely he
should hold 5 diamonds. Also, he denies CA here because he didn't cuebid 4C.
So it can be something like: AKx Kx AKxxx Kxx. Now you should just bid 4H
to suggest a place to play.
Also, you can either play 3C over 2NT as a checkback with 5 H, or you can
play transfers over 2NT to show this shape easily. So you bid 3C to show 4+D
. Partner can still bid... 阅读全帖 |
|
a****s
发帖数: 524 | 12 如果要我写个机器人叫牌程序，大致会是这样的：
参照随便一本桥牌入门读物，同伴2NT的期望值是20点，
我有大牌5点，单张3点，联手牌力期望值28点。
同伴在2NT后又继续叫牌，他的牌力应该是高限。所以我
期望完成5阶定约。最后选择：5D。
就这么简单。
至于同伴越过3NT暗示控制好，还有绝大多数大牌位置都在
开叫人后面等等有利因素，对于一个入门级的机器人来说，
实在太高难了，就不予考虑了吧。
举这个例子的意思是，叫牌的基础既不是感觉，更不是约定，
而首先是牌力估价的量化。只要有意识地运用一些简单到不能
再简单的量化手段，很多很多问题的结论都是非常显然的。 |
|
p***r
发帖数: 20570 | 13 Well, my suggestion to most novice to intermediate players is to play a new
suit at 3 level as at least one round forcing facing partner's 2NT bid. Of
course you can construct hands that have good plays in 3D and no play in 2NT
. However, the basic goal of bridge bidding is to find the correct game, not
to sign off. If you play 3D as sign off, you may have huge problems to
handle H-D two suiters with gf to slam values.
very |
|
l****a
发帖数: 272 | 14 我得承认, 看到开叫1D, 我第一个触动的神经就是6D.
如果开叫人是 4S+4D, 将来打6D 或者 6S 基本差别不太大(imp)
如果是S 有配合, D 无配合, 也不用担心错过4S, 后续总有手段.
1D-2C;2NT, 我看的哈代和劳伦斯的, 都是否认5+D的.其他方式我就不熟悉了.
1D-2C;2NT不否认4张高花, 只保证挡张. (这些就说的更远离本帖主旨了)
低花满贯叫牌困难, 我觉得有两个难点,
1, 确定了配合后, 是打有将还是去 3NT
2, 如何问将牌 (kickback, 4nt rkc, 乱)
早期建立逼局,确定将牌,先把1澄清了, 解决一个算一个, 哈哈.
1D-2C 我想到一个缺点. 如果开叫人是 4S5D 的强牌,
那么将来最佳定约可能是 4-4 配合的 6S或者 7S,
而不是5-4 配合的 6D 或者 7D. |
|
b***y
发帖数: 2804 | 15 是吗？劳伦斯的旧版1D-2C不逼局，不在讨论之列了。后来的版本，把1D-2C处理成逼局
，之后2D保证５＋张，2H/2S不承诺额外实力，仅仅否定５张以上方块，2NT可以是5332
牌型。
不管是何种版本，你在1D-2C-2NT之后怎么叫？3D还是3S？ |
|
b***y
发帖数: 2804 | 16 嗯，你叫3S，同伴3NT，你怎么叫？PASS还是4D？同伴承诺红心有挡，但你不知道是Axx
，Qxx，还是AKJT，而且目前为止你尚未显示方块支持。
2D保证５＋张, .... 2NT可以是5332牌型，就是说你在5332的时候有不同叫品的选择
，如果方块质量较差，点力在旁门，2NT是更好的描述。 |
|
g****o
发帖数: 1284 | 17 大家不要吵了，还是讨论牌吧。我突然想看看用海盗梅花能不能叫到7D。
1D - 1H
2D - 2S
2NT - 3C
3H - 3S
4C - 7D
1H = 接力问叫或4张H的自然叫
2D = 方块单套牌
2S = 接力
2NT = 6322
3C = 接力
3H = 2-3-6-2
3S = CRASH A问叫
4C = 0或3张A。这里几乎肯定是3个A，当然如果不是我也认了，下次要同伴不要开叫QJ
一大堆的烂牌。
7D = 同伴的牌是AX AXX AXXXXX XX。7D真是天仙配的定约! |
|
a****s
发帖数: 524 | 18 Right, since there are always too much to worry about,
I finally decide to pass with every hand, no matter what.
Until one day I heard this guy apologize to his partner, an unhappy lady who
just overcalled and played 2NT down 4.
"Dear, I think you probably have your 2NT bid, but the problem was, I don't
have my pass!"
躺着也会中枪的。 |
|
b***y
发帖数: 2804 | 19 双无，IMP，你坐西家，持牌：Q 8 3 2 / 2 / K Q T 9 3 / K Q J
南家开叫，过程如下：
S W N E
1H X 2NT* P
3C* P 4H AP
2NT = 4+张红心支持，邀叫或更好
3C = 低限
你首攻CK，明手摊牌：
AJ76
A876
J6
A87
Q832
2
KQT93
KQJ
庄家第一墩明手出CA，同伴C2，庄家跟C6。明手小方块，同伴D5，庄家DA。然后再出D2
，你DQ赢，同伴垫C3。现在你怎么防守？ |
|
p***r
发帖数: 20570 | 20 It's Ok to pass here. 3H can already be high. Without 2S, I might try 2NT.
Later, if partner bid 3C/3D, I'd bid 3H to show this awful hand. If partner
doubles, I may try 2NT, because they really may make it sometimes and it's
IMP. I don't really think partner should guarantee 2 spades here to double. |
|
b***y
发帖数: 2804 | 21 啊，对。这个进程我看错了。应该是北家使用check-back，而不是2NT。红心套虽然不
强，但是梅花有配合，旁门两个双张，如果同时红心配合的话还是打花色定约好。当然
，如果叫2NT是为了寻求一个swing，也是完全可以的。但是本手是check-back。 |
|
p***r
发帖数: 20570 | 22 This is a hand to bid 2S to show 6+ spade (or 2NT if your system use 2NT to
show 6+ spades). If you don't have way to show 6+ S, your system sucks and
you'd better bid 3H here. Over 4C, it's clear to bid 4D. |
|
p***r
发帖数: 20570 | 23 2NT and pass partner's 3NT (which should show a balanced hand and suitable
for NT). If partner bid 3D over 2NT to show D value, you can bid 3H here. If
partner bids 3C, you can bid 3H. If partner bids 3H, you bid 3S as a cuebid
. If partner bids 3S to show 5-6 in majors and weak hand, you can cuebid 4C
to show some forward going interest, because your partner may still hold
QJxxx AQJxxx - xx to offer an excellent play in 6H.
Jumping to 3NT directly is simply bad bridge. |
|
g****o
发帖数: 1284 | 24 那用我最心爱的人工系统海盗梅花试试：
北开叫：
1S - 1NT
2D - 2H
2NT - 3C
3S - 4C
4NT - 7H
1S = 11-15，5+S
1NT = GF
2D = 11-13, with 4+minor
2H = relay
2NT = 4D
3C = relay
3S = 5-3-4-1 shape
4C = RKC with S as trump
4NT = 2 key cards with SQ
7H = This is all I need. Even partner has no other side K, we can still
make 7 since dummy can ruff two clubs.
南开叫：
1C - 1S
1NT - 3D
3H - 4C
4H - 5D
7H
1C = 16+
1S = 5+S, 8+HP
1NT = relay
3D = 5S + 4D, 12+HCP
3H = relay
4C = 5-3-4-1 shape... 阅读全帖 |
|
p***r
发帖数: 20570 | 25 I don't think the points in the article are valid at all.
If you show a game invitational hand, it doesn't mean that you have the
defensive strength to beat opps' games, especially against solid players.
Here, 2D is only one round forcing, can be bid based on a good D suit, like
xxx xx KQJxx KJx. So the minimum level that the auction can end is 2NT. Any
opp's bids above 2NT through 4 level shouldn't create any forcing pass
situations.
Suppose the bidding goes like 1C 1H 2D 4H , there is no way f... 阅读全帖 |
|
g****o
发帖数: 1284 | 26 人工体系我最爱哈哈。试试海盗梅花吧！
北
S JXXX
H AKxx
D KQxx
C Q
南
S AKT9X
H 9
D ATxx
C AKX
1D - 1H
2S - 2NT
3C - 3D
3H - 3S
4D - 4NT
5S - 5NT
6D - 7D
叫牌解释：
1D: 11-15, 2+D
1H: 自然叫或持强牌的接力叫
2S: 4张H的4441牌型，高限
2NT：接力
3C：4-4-4-1
3D：CRASH问A
3H：1个A
3S：CRASH问K
4D：加三级答叫，显示两个同色的K。南现在知道同伴是HK+DK。AK齐全，同伴还是13-
15高限，现在只露出1A2K，还应有至少1个Q，小满贯应该没有问题，可以继续询问Q探
询大满贯。
4NT：CRASH问Q。H和S都是同伴保证4张的花色，在4阶水平上叫这两个花色都是止叫，
所以必须越过去，用4NT作为询问叫。
5S：加四级答叫显示同级别两个Q，可能是SQ+HQ，也可能是DQ+CQ。现在南家有点犯难
了，因为自己一个Q都没有，同伴到底是高花2个Q还是低花两个Q呢？如果是高花2Q，我
要打7S；低花2Q的话，我要打7D。不要紧... 阅读全帖 |
|
v**********e
发帖数: 1295 | 27 3C=4 C, a hand suitable for offense.
X=cooperative, 1 or 2 spade, PD may bid 2NT/3C/3D/3H as he wish, but he can
also make a penalty with balance hand suitable for defense.
2NT=INV, with S stopper
3S=FG, ask PD to bid 3NT if having S stopper |
|
b***y
发帖数: 2804 | 28 IMP有对无，你拿到：A963 / Q / 974 / JT753
右手发牌PASS，你也PASS，左手方开叫1NT，完整叫牌过程为：
E S W N
P P 1NT 2D
2NT 3S P 4S
X AP
1NT=15-17
2D=双高套
2NT=莱本索尔，要求同伴3C接力，这个序列下一般用于显示有一门低花，实力不足进局
首攻DK，明手的牌尚可：
J8754
AT8763
A
6
A963
Q
974
JT753
你第一墩明手DA拿后，准备怎么打？ |
|
i****e
发帖数: 642 | 29 Team, red vs white
You hold:
9
T742
A6
JT7543
RHO You LHO CHO
1S P 2NT 3H
4C 5H 6S all pass
2NT should be popular Jacoby. You may not agree 5H, but it could work well.
Against 6S, what is your first choice of lead, and what is the second? What
is the worst lead you think? |
|
b***y
发帖数: 2804 | 30 Why not pass 2NT? You have two potential entries in diamonds, if partner has
1-2 spades you likely can set it up and beat 2NT by a few tricks (
vulnerable). If partner has 0 spades you don't want to be in 3S anyway. |
|
b***y
发帖数: 2804 | 31 最近试用了一下Gazilli，是个不错的装置，尤其是2C之后应叫方越过2D的叫牌基本都
是8点以下牌力，使得开叫方持好牌时也可以安全停在二阶且无需暴露实力。
但是1H－1S－2C之后，有时候会有一些困难，尤其是应叫方持好牌的时候。比方1H－1S
－2C－2D－2H之后（开叫方显示16点以下，应叫方显示8点以上），应叫方如何逼叫？
我假设2S需要作为止叫，2NT／3C是邀叫，那么只能把3D作为逼叫（类似第四花色），
似乎有些太占空间。当然也可以把2S或2NT作为逼叫，但那样就要改变其它的应叫结构。
还有遇到过对方加倍2C，即类似1S（P）1NT（P）；2C（X），我目前的策略是：pass表
示8点以上，2D表示8点以下的方块套，其余叫牌和未加倍时一样。但也许还可以优化。 |
|
b***y
发帖数: 2804 | 32 首先祝牌友们2017新年大吉！
贴一副巴菲特主打的定约。投资和桥牌有些地方是相通的，都要考虑risk，equity，
reward，insurance等等。巴菲特是以成功的投资家来玩桥牌，也许诸位可以借鉴一下
，把桥牌的学问用在投资策略上，新的一年两者双丰收。
IMP无对有，定约为4H：
KQT8
54
8654
865
A73
AK9832
A
A97
叫牌过程：
N E S W
P P 2H P
2NT P 3H P
4H AP
2H＝强二叫品，现在ACOL体系中仍然采用
2NT＝negative
3H不逼叫，但北家当然还是坚持叫进局
西家首攻CQ，你计划怎样打？ |
|
i****e
发帖数: 642 | 33 Team match, decent opps.
white vs red:
Pd RHO You LHO
P P P
1C 1NT X P
2D 2S 3NT AP
1C: precision
1NT: one suit
4
J85
AKT95
AKJ2
QT8
AK72
872
753
You are in 3NT. Lead S2, SK win, and return S3. Your Q wins.
What is the best chance?
============================================
Another 3NT. Again white vs red if it matters:
RHO You LHO Pd
2S 2NT P 3NT
AP
2NT: stronger than 16 points
875
KQ9
J98732
Q
AQ2
A4
QT4
AK987
Lead SJ, covered by K. Where could be the 9th trick? |
|
w**d
发帖数: 2334 | 34 忘了，:), 好多年没玩过了。估计是不需要，因为这些信号有时候是有歧义的 - 可能
是被迫的。不像叫牌，2NT 就是2NT，有很明确的解释。 |
|
b********t
发帖数: 5261 | 35 来自主题: NextGeneration版 - 求问生孩子 说是48小时，其实一般就是2nts，最后一天一大早就把人赶走了。 |
|
b****h
发帖数: 1022 | 36 发 表 人：Shi_Gu(gs) 版面名称：Bridge[378]
文章提要：里斯叫牌问题(二)
源 发 站：中国科大BBS站(Sat, 08 Mar 1997 20:41:13)
88%
2. 队式赛, 双无局, 我开叫:
S:KJ63 H:A3 D:KQT2 C:T92
我们使用12-14的弱无将, 故
S W N E
1NT 2H 2NT --
?
这是一个棘手的问题, 我可以
PASS
3NT
3D
3H
3S
也可以 3C, 但没有和同伴约定, 如何最好? |
|
z***y
发帖数: 198 | 37 其实不很容易丢局
20点的均形牌是要开2nt的 |
|
c**g
发帖数: 274 | 38 恩,我的2nt是22-24。其实无将还是要求低点好.
1n: 15-17, 2n 20-22就很好. |
|
a***n
发帖数: 287 | 39
For such a strong hand, I always open 2c to force pd. relay once, and then
2nt
to show th pattern. In my natural system, there is no reverse bidding, no
other
super strong bidding than 2c. Personally I think it is somewhat convenient
for
lazy people (like me and maybe cang too). |
|
m*****e
发帖数: 207 | 40 Standard American Yellow Card
Revised and Expanded by Mark London (m*[email protected])
GENERAL APPROACH
Normally open five-card majors in all seats.
Open the higher of long suits of equal length: 5-5 or 6-6.
Normally open 1D with 4-4 in the minors.
Normally open 1C with 3-3 in the minors.
Notrump openings show a balanced hand and can be made with a five-card
major or minor suit.
1NT = 15-17
2NT = 20-21
3NT = 25-27
Strong artificial 2C opening.
Weak two-bids in diamonds, hearts and |
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m*****e
发帖数: 207 | 41 Feb15我和以前的哥们(不是搭档)参加了okb的节目
一度保持60%以上(最高有63+吧)
后来他家里打电话过来了，一时犯土无数(在这之前也土了好几把)
总的感觉是那天有些对手比较弱，没碰到一一这样的高手(或者牌
很平淡，他们没有机会发挥)
印象深的一副牌，本来是pd主打，突然他死机了，几分钟后tourney
进来让我打庄：
Match Points east Pairs Board 14
Dlr: East simai
Vul: None S AJ43 north east south west
H KQ82 jeanneb simai newsJACK manatee
D A7
C AQJ 2NT pass 3NT
north |
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m*****e
发帖数: 207 | 42
Match Points east Pairs Board 14
Dlr: East simai
Vul: None S AJ43 north east south west
H KQ82 jeanneb simai newsJACK manatee
D A7
C AQJ 2NT pass 3NT
north south (all pass)
jeanneb newsJACK
S KT86 S Q952 Opening Lead: H3
H AT6 |
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d******n
发帖数: 47 | 43 Capp 主要针对弱无将的防守叫牌约定
敌方开叫1nt后
x=惩罚
2c=单套牌,要求同伴叫2d,然后你再叫出自己的长套
2d=双高花 保证5-4
2h=红心带低花
2s=spade带低花
2nt 双低花
DONT 是针对强无将的防守叫牌约定
1NT后
x=单套,要求同伴叫2c,然后你叫自己的长套
2c=club+高花
2d=dia+高花
2h=双高花
2s=破牌,6张sp |
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p*y
发帖数: 61 | 44 1NT 2C
2D 2NT
3NT
S 108XX
H QXX
D KJ107X
C J
S AK9
H KJX
D 96
C AQ10XX
首攻:SQ |
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b****y
发帖数: 105 | 45 This is an interesting board played in 1970, France-USA
S:42
H:5
D:A832
C:KQT875
S:AQ53
H:KT97
D:KJ4
C:J2
N E S W
- - 1H -
2C - 2NT -
3NT - - =
leading: ST (mean KJTX(x) )
N E S W
S4 Sx SQ- ST
C5 C3 CJ- Hx
CK CA- C2 Hx
S2 S9 S3 Sx |
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z***y
发帖数: 198 | 46 当然我赞成在叫4NT前先扣叫
不过, 如果你用Roman Key card Black wood, 你也可以把你的缺门显示出来
5NT= 2 Key cards and 1 void
6阶花色，1 or 3 Key cards , 这们花色是缺门
6阶将牌花色，1 or 3 key cards, 有一门级别高过将牌的花色是缺门
然后事情就容易了
另外就算用Black wood在这种情形下，可能依然应考虑叫6个，因为你搭档的牌肯定相当好,
否则他没资格叫4NT |
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b****y
发帖数: 105 | 47 S:9 7
H:A Q 8 4
D:A Q J 7 3
C:6 4
S:A Q J 5 3
H:K 5
D:K 9 5
C:K 8
叫牌:
S W N E
1S - 2D -
2NT - 3H -
4D - 4H -
5C X 5D -
6NT - - =
首攻: H2 (长四) |
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m********w
发帖数: 69 | 49 这是在OKB上的一个牌局，
Match Points south MP-25 Board 660
Dlr: West mjb
Vul: Both S K7 east south west north
H T7532 alexho mjb dawl zhujy
D QJ92
C 62 pass 2C
east west pass 2D pass 2NT
alexho dawl pass 3D pass 3H
S A65 |
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z***y
发帖数: 198 | 50 Match Points south MP-39 Board 61
Dlr: North Dorothy
Vul: Both S Q9742 east south west north
H KQ3 zhujy Dorothy jerr PC
D A85
C K6 1NT
east west pass 2H! pass 2S
zhujy jerr pass 2NT pass 4S
S S KT86 |
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