p***r
发帖数: 20570 | 1 Well, I don't think you really understand what I am saying. Of course you
can go on playing what you like. Transfer advances are actually rather bad
in many ways.
One key problem is that transfer advances make it very difficult to bid
clubs. For this hand, transfer advances also won't solve the problem. Also,
transfer advances can be rather difficult to play because it also covers a
very wide range of hands, from constructive hands with a 6 card suit to gf
hand with a 4 card suit.
So a lot of di... 阅读全帖 |
|
p***r
发帖数: 20570 | 2 KQ9xx
x
KTxxx
xx
J
Q98x
Axx
AKxxx
In this hand, Zia and Rosenberg overbid to 4S after 1H(opp) 1S p 2H p 2S p
3N p 4S.
Of course this is a typical hand showing that the standard new suit
nonforcing style is very difficult to play even for top pairs like Zia and
Rosenberg. One clear improvement is to make 1S overcall sounder, usually in
the range of 1 HCP lower than a typical opening minimum and the responder should
play new suit one round forcing(still, it doesn't guarantee a rebid after
non... 阅读全帖 |
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b***y
发帖数: 2804 | 3 Requiring very sound overcall is losing bridge. Look at top-level
competition, people make very light overcalls, even at 2-level. It's
important to get your suit in, and to make life more difficult to the
opponents. Sure, you may occasionally miss marginal games, but you disturb
the opponents, and your side can compete more effectively, the frequent part
-score swing compensates a lot more than the loss.
To cater for the wide-range overcall, one convention to consider is transfer
advances. Zia a... 阅读全帖 |
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w****b
发帖数: 623 | 4 In my humble opinion, in bidding, there are two somewhat distinctive set of
tools: constructive, and destructive. The goals are very different. Of
course you can try to cover both with one set but that will have its own
tradeoff anyway.
Now if you recognize the very different goals, the key issue is to recognize
the situation. And I think that is the key here.
Top level experts can often utilize a very aggressive style as they may be
able to recognize who's bluffing better -- or maybe they can k... 阅读全帖 |
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p***r
发帖数: 20570 | 5 Well, the key to decide whether or not to get involved is usually the shape.
For example, with AJ9xx xxx Qxxx x, it is usually a good idea to show your
spade when white. For AQJTx xxx xx xxx, it is actually not clear at all
whether you should show your spade. With more distributions, you have more
chances to get to a top spade spot and don't go down too much when they have
a game or you may eventually make it. For example, facing Kxxxx x KJxx xxx
, the formal hand usually goes down about 1 tric... 阅读全帖 |
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b***y
发帖数: 2804 | 6 No matter what you do, there will always be situations where everyone is
bidding and it seems we are playing a 70-point deck. Sometimes it is just
nearly impossible to tell who's "bluffing". Although top-level experts tend
to "guess" right more often, when they are wrong, they can be spectacularly
wrong. They key is to put constant pressure on the opponents, especially
when you have a fair major suit, get in the auction. A simple one-level
overcall and a simple raise by partner can make it quite... 阅读全帖 |
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f*****x
发帖数: 545 | 7 Many top plaers, like Mike Lawrence and Marshall Miles, recommend to use
4-card major opening and overcall. Wonder if any guy here adopt this method
and what do you think of this method. Marshall Miles even said you should
overcall 1S with:
S: AJ85
H: T
D: A8
C: AQT842 |
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b***y
发帖数: 2804 | 8 Actually that's not a bad idea. What I wanted to point out is that, you
absolutely need a way to get in the auction with decent suit and less-than-
opening hand. If you play a really sound overcall style, you will need to
change other parts of the structure (such as wider-range jump overcalls).
You may even want to play different styles depending on vulnerability. Also,
it may be good on paper, but to prove it works (and reaps enough benefit to
compensate for the complexity), it needs to be test... 阅读全帖 |
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w****b
发帖数: 623 | 9 * Michaels
Today most people treat Michaels as weak/strong. This is so
popular that I think if you don't discuss it, this is the
standard.
So if you overcall a Michaels with 5-5 and 13 counts, be
prepared, it's your fault. The reason is obvious, if you
have normal strength, then you have less danger of losing a
fit, or missing a game. |
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w****b
发帖数: 623 | 10 My humble opinion...
4 card overcall is routine and often necessary in matchpoints, as it tends to
be very effective in partial score battles, plus, as cozofu pointed out, this
game of bridge is more of a game of S than any other suits, particularly so in
matchpoint. In imps, your strategy is usually to play sound and you want to
avoid any disasters, and you really don't care about the differences between
+130 and +140.
Opening is something different because your rebidding problem (to show secon |
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c****u
发帖数: 3277 | 11 you want to overcall 1S here. The overcalling strength varies for different
partnerships. Basically, you want to have an opening strength and a
good suit for one level vulnerable overcalls. When it's white, you want to
overcall with a hand about one to two HCP lower than the hand you would
overcall when red. That actually suggests a sound overcall range, about
12 or good 12 when red and about 10 when white. |
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c****u
发帖数: 3277 | 12 I overcall 1S here in my system cause my overall style is rather sound
so partner would usually give me another chance to bid. However, the first
school would overcall 2D here. The second school would also overcall 1S.
a |
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p***r
发帖数: 20570 | 13 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 |
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p***r
发帖数: 20570 | 14 This hand isn't very easy to bid if 2H(D) is a popular choice.
First, north's hand is slightly weaker than a 3 C overcall. Suppose north
passes,
the only sensible choice for south is to double. Now north can bid 4C to
show 6 clubs and good hand, (although most would just bid 3NT IMO and I don't think it's clear for south to invite because of the first pass by north) just slightly weaker than a normal 3C. The only
bid for south is 4H, north now need to guess to bid 6C. Of course if north
overcall... 阅读全帖 |
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c****u
发帖数: 3277 | 15 It's always a contradiction in balancing style. Some like sound overcalls
and aggressive balancing, others like aggressive overcalls and don't
like balancing much.
When you hold something like:
SAxxx Hxxx DAxx CKxx,
even the most crazy player wouldn't double RHO's 1S opening.
However, when the bidding goes like this way:
1S p 2S p
p ?
It's quite a sound way to reopen the bidding since partner
is rated to be short in S and has some value. What would you
bid now?
double? Isn't that a penalty doub |
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w****b
发帖数: 623 | 16 Hehe I'm in the "act early" school so I consider overcalling 1S with that hand
routine and not an act of prebalancing.
balancing
possibility of
remember
overcalls
auctions:
as |
|
w****b
发帖数: 623 | 17 Board 15. NS vul.
You are west, with 52 T5 AQ764 QJ97, and south opened a 1st seat 1S. You
(1) pass
(2) Overcall 2N for minors
(3) overcall 2D
(4) Psyche 2H |
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f*****x
发帖数: 545 | 18 the problem is that after pd open and opp overcall, you will be more likely to
hold a weak rather than strong hand. What is the bottomline for a strong hand?
Game foricing hand? I think the reason most of us play 2level overcall
nonforcing is that we have few chance to have a strong hand after this kind
sequence.【 在 arrowhits (箭笑江湖) 的大作中提到: 】 |
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w****b
发帖数: 623 | 19
This might be possible but won't be a popular auction. With questionable shape
and values, 4card S suit, both vul, raising pd to 4 is equivalent to hanging
pd even when playing sound overcalls. Furthermore, with sound overcalls, the
worry of oppo getting to a minor game is minimum. |
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f*****x
发帖数: 545 | 20 pass. if pd has some strength, he will dbl to reopen. A useful convention is
to play dbl as penalty at 2 level and 3 level as takeout. THe rationale behind
this is that opp's 3 level overcall is often very good, u cannt really benefit
much from dbling them. On the other hand, 2 level overcall is more flexible,
so u can dbl for blood.【 在 acman (笑傲江湖) 的大作中提到: 】 |
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f*****x
发帖数: 545 | 21 The hand you gave is:
S AKJTxxx
H Qx
D Q
C Kxx
I must say this will never occur to me as a 4S overcall. your red Queens are
really bad cards. Overcalling 4S with this hand is just inviting trouble.
If you bid 4S with this kind hand, then you must discuss it with pd and pd
should not raise you no matter what happens.
cannot |
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w****b
发帖数: 623 | 22 同伴的牌not even close to a 2H overcall，IMHO，尤其同伴是passed hand。
在IMP里，找局仍然是priority，面对passed pd，你方有局的可能大大下降，如果这是
副partial之争，那么绝没有必要去冒被切磋800的危险，你们也未必能抢到定约，IMP
pairs也不是靠把敌人2S拱到3宕掉来赢的；如果敌方到局上，我们更没有必要跳出去给
敌人信息让敌人打得更准。
这个牌我MP都不会去overcall，即使我们不被锤，同伴由配合，有时候也会竞争到3阶
，而我们拿-200。
我方的加叫确实是marginal的（要不然我也不会把DJ放红心里），但这个争叫太过分了。 |
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b***y
发帖数: 2804 | 23 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 | 24 One advantage is to make the opener lead, which is intrinsically good,
because opener tend to blow tricks, leading from some un-touched honors.
This makes a transfer responses against preemptive jump overcalls or two
level overcalls very attractive. |
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g**********y
发帖数: 14569 | 25 About 2, if opponents didn't overcall, I would bid 1S. Since they overcall
2H (preemptive, I assume), my 2S shouldn't require 10+ points anymore, right
? Considering my pd opens 1C and opp's 2H, very likely he has 2+ spades.
pass
to
and
. |
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p***r
发帖数: 20570 | 26 Showing 4+ hearts are not as attractive as showing 4+ S.
For example, suppose you hold x AKxx KQJxxx xx, over 1C opening, you want to
show your hearts, because you may belong to 4H or if they have a huge C fit
, you may hit a huge H fit that may buy the final contract and compete over
their C contracts.
However, if it is over 1S, it becomes less clear, whether you should risk a
possible 2C or 3C bid from partner and make a takeout double. One reason is
that if they find their S fit, your D or H ... 阅读全帖 |
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p*********6
发帖数: 679 | 27 On BBO news - A new version of GIB (Version 20) released on 12/15.
Main Changes:
-Added/improved many rules for takeout doubles and continuations.
-Improved GIB's ability to choose between minor or major suits after a -2
level opening or overcall, including unusual NT.
-Improved rules on penalty and support redoubles.
-After partner gives a limit raise, GIB will now refrain from bidding to an
illogical level.
-Made GIB smarter after the 1NT - Stayman - 2 Major - 3 Other Major sequence
. GIB shou... 阅读全帖 |
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b***y
发帖数: 2804 | 28 4D bid was strange anyway. Unless with shape such as 2-6-0-5, RHO just has
too many losers to make slam try when partner could only make a simple 1-
level overcall.
It's also not very likely for RHO to have both SKQ -- that would mean LHO
has no honor outside of hearts, which that hand LHO might have overcalled 2H.
Sometimes it is useful to know how reliable the opposing bids are. |
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l****l
发帖数: 833 | 29 ☆─────────────────────────────────────☆
Overcalls (Love Bridge) 于 (Tue Jan 29 10:58:26 2008) 提到:
我觉得应该向网球学习，裁判想偏袒也不行了。
☆─────────────────────────────────────☆
nkgg (耐看GG) 于 (Tue Jan 29 11:03:16 2008) 提到:
BWF两个主席斗得正厉害，谁知道呢？
☆─────────────────────────────────────☆
centaur (小唐葫芦唧唧歪歪) 于 (Tue Jan 29 13:32:28 2008) 提到:
足球也应该 |
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w****b
发帖数: 623 | 30 Playing online, against expert opposition. I held
SAK7x HQ Dxx CAQxxxx
both vul. RHO opened a 1st seat 2D, weak two.
Overcalling the minor is often wrong so I tried 2S. LHO gently raised to 3D.
Partner came in with a 4D. So I cooperated with a 4H. Partner signed off with
4S and I don't have further opinions.
LHO led the DA and dummy tabled down:
S QJTx
H K9xxxx
D Kxx
C -
S AK7x |
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s********e
发帖数: 31 | 31 A.Lebonsol System
Situation: Partner opens 1N and there is an interference bid by opponents.
(a) Double is for penalty
(Exception: If 2C overcall is not for natural,double for Stayman)
(b) Any two level bid is natural and non-forcing
(c) Any three level bid is natural and forcing to game
(d) Direct Cuebid is Stayman and denies stopper in opponents suit.
(e) 3N shows a balance hand without a stopper in opponents suit.
(f) 2N is asking opener to bid 3C, then
1. 3N shows a balance hand, |
|
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r******d
发帖数: 31 | 33 the system is not bad.
maybe i can try it |
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c****u
发帖数: 3277 | 34 hehe, it's extremely aggressive |
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a*******s
发帖数: 295 | 35 愚以为, 该体系太容易被滥用了.
持弱牌作牌型揭露式争叫往往是得不偿失.
你会发现对方往往会叫到并打成一个在正常
情况下叫不到或打不成的定约.
并且根据网页上的叙述, 该结构还有一些未能克服
的逻辑缺陷. 在这儿就不多罗嗦了.
总的来说, 其核心部分是罗马跳
争叫+变型的顶底扣叫, 其他简单争叫的推论都是
以此作为逻辑依据的. 我想说的时, 这些并不是
什么新鲜玩意儿. 几十年前就有了, 后来又被
牌手们摒弃了.
新瓶装旧酒也许暂时有效, 但一旦对手意识到
"原来如此", 也就不灵了. 无论什么结构体系,
只是叫牌逻辑的表现形式, 而不能代替叫牌逻辑.
更不能代替人的思考. 所以, 从理论上评价某种
叫牌处理, 在于分析其逻辑的合理性和完整性,
而不是举出一些"恰到好处的牌例. |
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r******d
发帖数: 31 | 36 不要这么武断，世界上打桥牌的人多着呢。
你知道大多数牌手用什么体制？约定叫？
大多数专家用什么体制？约定叫？
~~~~~~~~
什么逻辑缺陷，我倒是很感兴趣。
~~~~~~
还是老话，你不知道现在世界各地的牌手到底在干什么。
~~~~~~~~~
关于叫牌逻辑，我倒是
很有心得，以后会陆续发一些文章。
抽象的谈论叫牌逻辑当然很舒服。关键是要拿出具体办法来。
~~~~~~~~~~~~~~
这些牌例都是高手的经验和教训的总结，不要以为
这些
牌例都是为了说服你现编的。 |
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a*******s
发帖数: 295 | 37
我当然不是信口胡说啦, 只是恐怕别人不会有兴趣仔细地
研究那些约定, 多罗嗦意义不大.
又来了不是? 你怎么知道我不知道别的牌手到底在干什么? :) HEHE
太好了, 我一个人在这灌水挺没劲儿的.
你不好意思说我"抽象"吧, :), 我在这儿灌水的牌例和分析还是有
几篇的嘛.
那网页上举了个牺牲6C而实际做成的例子, 还有一些简单的解释.
我觉得似乎不能证明非他的体系不能叫出来. 再说, 举这种双做满贯的
例子也太极端了吧. 我说的都是有的放矢, 并非泛泛而谈.
欢迎探讨. :) |
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c****u
发帖数: 3277 | 38 SQTxx HAKTx D- CK9xxx
MP, love all.
You are playing 2/1. You partner opens 1C, RHO overcalling 2D,
your call?
there are some options:
double, 3D, 4D, 2H? |
|
y****e
发帖数: 71 | 39 I played at least once every 2-3 days for 10-20 boards on MSN, just lazy to
write anything. In fact, not much things to write about, most top scores are
given by their errors; bottom score got because of our own errors. Sometimes
you setup a seemingly good strategy, then they will make unbelievable mistake
to let you make it easily. Bidding is even worse, I met a lot people who do
not use transfer, someone use jump overcall for very strong hand instead of
weak hand. Once my partner bid 2NT a |
|
c****u
发帖数: 3277 | 40 All Terence Reese's books are good.
All Mike Lawrence's books are good.
All Hugh Kelsey's books are good.
I also like David Bird's bridge stories.
For Reese's books, I like "play these hands with me" best.
For Mike Lawrence's, I like "complete books on overcall", "complete books
on balancing", "play bridge with Mike Lawrence", "play a swiss team with
Mike Lawrence", "dynamic defense".
For Kelsey's, I like "logical bridge" best.
For competitive bidding, I like Marshall Miles's
competitive bidding |
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g**********y
发帖数: 14569 | 41 Thanks for the info! I just ordered Mike Lawrence's overcall/balancing/play
bridge with/dynamic defense. I like Mike Lawrence, he has a knack to show the
logic instead of just telling the solution.
For that reason, I don't like David Bird's "Famous ..." series, it just
collect a lot of fabulous hands/bidding, I don't learn much from that. Abbot's
stories go to that category too, just for fun, not for improving.
I like Kelsey a lot. Especially his 4 small books, those problems are well
designed. |
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w****b
发帖数: 623 | 42 Just played a weird hand on bbo. With - AQxx Tx KT98xxx all white, I'm the
dealer and pass. Lefty passes and partner opens 1D. Righty overcalls 1S.
I double, of course. And left expectedly raises to 3S. So far so good. And as
I contemplate what to do when it goes pass-4S, the matter turned unexpectedly.
Partner bid 4N.
Well you know as much as I do for this pd, which is nothing, other than he's a
self-acclaimed expert, and that he lives in Canada. Anyway, it's still easy,
it can only be pick a s |
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w****b
发帖数: 623 | 43 1. Vul vs not. hold
xx Axxxx AJT9x x
RHO opens 1S. The vul made you a coward and, say, you pass. LHO bids a forcing
1NT, RHO bid 2C.
(a) do you double this?
(b) if you pass, LHO takes preference to 2S, and two passes to you. Do you
balance?
2. All white. Hold
x AQJ9xxx Jx Jxx
Partner opens 3D, RHO overcalls 3S, what now?
3. All white. Hold
Kx Kxx AQT9x Jxx, bidding went
LHO CHO RHO YOU
1N - 2D x
- - xx -
- -
1N's 15-17, 2D's transfer.
you lead a club, and dummy comes down to
Axxx Ax K |
|
w****b
发帖数: 623 | 44
On reflection, I think doubling 2C is probably the least dangerous.
Overcalling 1S with 2H can easily solicit toll-free, or sticks and wheels with
this vul. In contrast, it's much safer to balance if they find a fit, and your
hand has some defensive value, too (C ruff, 2 A) so a late entry to the
bidding is not that bad, i think.
In reality, the lefty had JTx xxx xx KQTxx (!) and choses not to raise to 2S
and only took preference. And righty had AKxxx KQT K Jxxx. So the par is 4D
our way.
If yo |
|
c****u
发帖数: 3277 | 45
I'd bid 3D. I have 8 tricks when playing 3D and only 2 tricks or even less
in 3Cx....and my hand is so slow....
pass. hope pd can double. then I'd pull to 5D. but now 5D is too risky
and 5C isn't clear.
4D. there shouldn't be any problems I guess.
I might overcall 2D over 1D. now it's tough. I would pass I guess
and stay fixed. Once a long while, pd might not have S or H fit
but a long long long C suit and 4C may easily go down 2 when vul. hehe |
|
a*******s
发帖数: 295 | 46 IMP None,
you hold
S -----
H AQJ8
D 1054
C AQ9765
Pd deals and open 1D, RHO makes a 1S overcall, what's your call? |
|
w****b
发帖数: 623 | 47 Hold Qxx Jx Ax Axxxxx, love all. Long match IMPs. Your Righty deals and opens
1H. You overcall 2C. And it went
RHO YOU LHO CHO
1H 2C 2H 3C
4H all pass
What do you lead? |
|
w****b
发帖数: 623 | 48 One of the only very few lucky hands in a losing effort of a KO.
Hold QT KQ8 97xx Axxx, I'm fourth to speak with both red.
The bidding soon went high:
LHO CHO RHO ME
1H 1S 3H! ?
3H was preemptive. And I have a bidding problem.
My option is
1. Pass, hope pd to reopen w/ extra;
2. x for responsive, hoping pd to have a 2nd minor suit;
3. 3S, honor doubleton sometimes suffices;
4. 3N, with both red, the overcalling is not based on too light values.
I guess with some 13 count, our 3N might be cold |
|
w****b
发帖数: 623 | 49 Preempt works. After 3H, there's always some guessing. But overcalling S seems
to be the lesser of all evils. After north's raise, bidding again by S is
defefinitely wrong -- pd can have only 3 S support and your H holding becomes
highly questionable: long holding in opponent's suit is generally good asset
as dummy can overruff, but only in game, as you may have to lose a few trumps
if dummy has low trumps. In slam, you almost always need to set it up and your
holding is just unlikely to happen. |
|
w****b
发帖数: 623 | 50 Talking about 50% slams, last weekend, in a 32-board imp match, we bid 4
slams, 3 of which about 50% or better, all went down. The other one is not as
good, but makes.
Would you rather be in slam in
AQxx x xx ATxxxx vs xx KJ AQxx KQxxx after HA lead or
ATxxx Qx AKQJ9 x vs xx KJT9xxx xx Ax after SK lead?
Oh by the way, on the 1st one, after the 15 count hand opens 1N, left
overcalled 2D showing both majors.
I happened to be declarer on both hands, and I felt pretty happy with the 1st
one, and reg |
|
