p***r
发帖数: 20570 | 1 For experts, the overcall here is very rare, because opps have set up a
gameforcing sequence and have shown two suits. So it is usually based on
good shape and good suits. Also, it's very easy to get penalized, so one has
to be very cautious here. |
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b***y
发帖数: 2804 | 2 That's ok, if opponents catch the "right" timing to make bad overcalls (
North has trump stack and South has singleton or void so has to pull partner
's double), let them escape the penalty. But we still get them when South
has trump stack (this is the time penalty is most juicy, since South sits
BEHIND East), or trump breaks 3-3 and N-S has nothing to make. The bidding
structure should NOT gear toward getting the opponents EVERY TIME, rather it
should take care of our normal bidding, then the o... 阅读全帖 |
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p***r
发帖数: 20570 | 3 Actually trying to penalize opp at two level with 3-3 split can sometimes
lead to huge disasters. 3-3 is good for defense when opp is quite (semi)
balanced and you may have crossruff potentials. In this situation, 2S is
usually bid by long and good spades with shortness somewhere. So most of
their assets are in trumps, but not side suit honors. They are most likely
to take 4-5 tricks in trumps and a few side tricks. So it is quite rare that
your 3-3 trump would ruff out their side suit honors to... 阅读全帖 |
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p***r
发帖数: 20570 | 4 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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v**********e
发帖数: 1295 | 5 两个人把2H的含义搞错了吧。。。
Rosenberg完全可以在2NT/3NT中选择应叫，取决于他对同伴争叫强度的理解。
Miles的21世纪竞叫中简单介绍了争叫的转移应叫处理这个问题，应该说是很不错的约
定，不过对于这副牌没用。 |
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v**********e
发帖数: 1295 | 7 不是很同意。
牌型的确很重要，但是要有配合，否则毫无意义。你举的两手牌都是极配牌，牌型的意
义就显现出来了。第二手牌将牌腐败太严重，使整手牌的潜力下降。而像贴中齐亚和罗
森伯格的那副牌，牌型潜力也是极好，但其价值在于配合，如果能一口叫清两套就不会
有后面的问题了。
持AQJXX套的5332均牌，不叫有点说不过去，毕竟争叫对于指导防守还是有很大意义的
，同伴持5431扑四正常，擅自扑五就过了，两手牌看起来有点对死，有没有第二套
配还很难说。
shape.
have
xxx
bigger |
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v**********e
发帖数: 1295 | 8 主流的做法能使你不输牌，非主流的做法能使你赢牌。和配合默契的搭挡，把敌方引入
不熟悉而己方详细讨论的叫牌进程是赢牌之道。顶级的搭挡之间通常有其独特的信息传
递通道，叫牌之中的信息交换方式也随着局况和叫牌进程不断变化，通过信息的不对称
获得优势并取得胜利。
, |
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p***r
发帖数: 20570 | 9 The problem is that you don't really know whether you have a fit or not. If
you have no fit, you certainly may go down less with the second hand, but
that's not where you make a lot of money. You make a lot of money from a few
good things:
1 you have some reasonable fit and you play in 2S (3S). In that sense, the
former hand provides you better playing potential facing a 3 spade support.
2 you have a huge fit. In that sense, the former hand can produce way more
tricks then the second one. If you... 阅读全帖 |
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p***r
发帖数: 20570 | 10 That's not the right thinking of bridge. The right way is to spot the
weakness of your opps system (here, the "main stream" system), improve them
and try to take advantage when opps refuse to improve. The money shouldn't
be made from the unfamiliarity of opps to your partnership agreement. |
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v**********e
发帖数: 1295 | 11 不可否认，任何体系都有其弱点。不过对于目前的桥牌领域而言，大多数弱点已经被解
决或者淡化了，这些处理方式被广泛接受并且成为主流。当然你可以针对这些弱点进行
攻击，但这需要你有比主流专家更深入的思考和探索，另外通常也需要下更多的功夫，
比如有些问题的确是能用约定来解决，只不过约定极其复杂，所以没多少人愿意用。如
果你能比这些职业牌手更聪明，也更勤奋，你赢他也就理所当然了。事实上，任何一个
领域也都是如此。
them |
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p***r
发帖数: 20570 | 12 That's the major difference between you and me. You think most bidding
problems have been solved. The reality is actually very different from that.
Even in a strong competition like 2011 Vanderbilt, the 7D missing trump A
were reached at both tables in the final. Also, both pairs are top players
without any doubts. Also, there are many many bidding principles that are
not really well studied for constructive sequences, which I won't show here.
Let me give you one example in poker. Many poker pla... 阅读全帖 |
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b***y
发帖数: 2804 | 13 有没有人研究过转移争叫（transfer overcall）？有什么优缺点？ |
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b***y
发帖数: 2804 | 14 转移式争叫。举个例子，对方开叫２Ｓ，表示三阶的阻击（任意花色）。你可以考虑使
用转移式争叫应对：加倍表示１５＋均型，２ＮＴ／３Ｃ／３Ｄ／３Ｈ分别显示梅花／
方块／红心／黑桃，３Ｓ可以用来显示６－４高花，等等。Transfer Overcall 较多用
于对抗多义开叫，但我不知道是否真的实用，还有就是能否把相同的理念用在普通争叫
序列中。 |
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p***r
发帖数: 20570 | 15 I have said it clearly that I duck the first trick over east's T or Q. I don
't buy the concept that west won't play T from QT8 or KT8 in the real play.
West doesn't know the situation in S and S8 may create a natural trick for
you if you hold A9xxx. It's unlikely, but it's still possible after
semipsyche opening from A9xxx QJxxxx Jx - . If you think few would open 1H with this hand, you can ask wimptb, I think he opens hands like this with1H for some times. I myself may also open it, because pa... 阅读全帖 |
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b***y
发帖数: 2804 | 16 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... |
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p***r
发帖数: 20570 | 17 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 |
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p***r
发帖数: 20570 | 18 It looks like 4-2-2-5 shape from partner. So it's natural to cash another H
now. and try to give him a ruff. declarer has 5-3-5-0 shape. This is quite a
silly 3D overcall, because you are unlikely to make 3NT here.
了。 |
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p***r
发帖数: 20570 | 19 If partner never passes the double, double certainly looks good. If partner
passes double with 4 or sometimes even 3, you are in serious trouble.
For example, partner may hold a very normal looking AQJxx x ATxx Qxx, it's
almost impossible to beat 2D double and very often, they make an overtrick
without any games on. This is a major disaster you should try to avoid IMO.
In some sense, the takeout double can never be based on too much shape and
too little defensive values. That's also why one sho... 阅读全帖 |
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p***r
发帖数: 20570 | 20 Also, playing against this style, one gotta overcall at 2 level frequently.
than I |
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C*****9
发帖数: 147 | 21 被RHO的将牌罚了不算太可怕，overcall最怕是被后面的将牌卡住。所以这个不能是
大concern。
. |
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v**********e
发帖数: 1295 | 22 We could try to throw in with 4th S after finding C14.
If someone have 44 in black suits, his partner may have lots of H with
either KQ or A which worths an overcall. |
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a****s
发帖数: 524 | 23 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。 |
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p***r
发帖数: 20570 | 24 I actually don't think it's merely a partnership thing. It is a matter of
evaluations and anticipations. For unbalanced hands, I would tend to bid 4S
with high ODR.
For example, with Axxx A xxx KQJxx, I tend to pass 4H, because this hand
contains at least about 2.5 (I offer some discount on the CKQJ because of C
length and opps' 4H overcall) defensive tricks, we are likely to beat 4H if
partner can also provide 1.5 defensive tricks; and we need partner to hold a
nice hand to make 4S.
For hands l... 阅读全帖 |
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p***r
发帖数: 20570 | 25 No, you should still take the S finesse if SQ wins.
In my opinion, S to K or S to Q are close. S to Q is better
because you may go down less when east holds SAJxx, which is more likely
than west to hold them because that would give west 10 HCPs and fail to
overcall. Also when some player leads honor connection (or long suit)
instead of shortness in side suits, he is more likely to hold trump
shortness. Also, you have to play D or C to enter dummy if you want to play S to SK, which would increas... 阅读全帖 |
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v**********e
发帖数: 1295 | 26 This hand is almost the worst hand pd can imagine after 1C opening
especially after opp's S overcall. Don't do anything unless partner use some
forcing bid. |
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b***y
发帖数: 2804 | 27 Since 3C cuebid is not game-forcing, West's 4C bid creates annoying problems
. It deprives an entire level of bidding from N-S. Even experts cannot agree
what should 4D from North show. Does it show slam interest, or a secondary
suit (so that partner knows what to do if opponents bid higher), or maybe it
is "last train" (which doesn't even promise diamond control)? We don't know
N-S agreement here, so we are all just speculating here.
But I think South does have enough to bid beyond 4H. Even if ... 阅读全帖 |
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v**********e
发帖数: 1295 | 28 Good, that's your point.
3H is bad for such a good hand. Partner's 2C overcall usually promise a good
hand, and a game is promising. 3H is a negative signal rather than positive
in this sequence.
Anyway, playing with strangers is a waste of time. Or just for fun. |
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w****b
发帖数: 623 | 29 Here's another hand.
Both vul, you hold
-
KJT872
J75
QT73
your LHO opened a precision 1S, pd overcalls 2C. RHO jumps to 4S. What now?
If you bid 5C (or 4N which pd corrects to 5C), RHO follows with another 5S.
Do you give up here or continue also?
One |
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a****s
发帖数: 524 | 30 S AJ95432
H 6
D AQ8
C 98
MP , Both
Your RHO opens a 3rd seat 1D, you overcall 1S, doubled by left, RHO rebid 2D
. You try 2S, doubled again by LHO, explained as show cards and don't like
sell 2S. RHO fumbled and bid 2NT.
Distrusting the whole affair, you have a strong feeling these guys are
stealing from you. taking a deep breath you bid 3S, passed out quickly.
LHO leads D6, dummy comes down:
S ---
H AQ943
D 1092
C QT732
S AJ95432
H 6
D AQ8
C 98
Seems these guys are at least as twice crazy as yo... 阅读全帖 |
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k******t
发帖数: 257 | 31 utg x3 too small for getting those crappy hands coming in for pot odds ba.
Sometimes utg+1 call,utg+2 call can make chain calls for every one.
either raise more utg or limp trying reraise late position raise and get
heads-up with 9s. 3 way pot you can't overcall A turn but headsup should be
easier decision.
caller. |
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T********n
发帖数: 528 | 32 I talked with another LHE expert today during a break from work, and he
highly advocated raising the turn if anything 'to leave yourself heads up
against the fish', and with ~7 big bets in the pot when it gets to V1 on the
turn if he did have a gunshot he's not making a big enough mistake calling
there than the luxury of being HU with fish.
I would say if I didn't raise turn on the river given the way it played out
I wouldn't want to raise river because my raise multi way shows so much more
stre... 阅读全帖 |
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h*****0
发帖数: 4889 | 33 主要就是overcall和takeout double，以及takeout double的应叫。原理上很简单的。 |
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