b***y
发帖数: 2804 | 1 West won't play T from QT8 or KT8. There is no entry to East hand to lead S
through, so with QT8/KT8, West should play S8 anyway, hoping that you
somehow guess wrong and put in SJ.
Your reasoning for playing low from dummy is sound. The real question is
what do you play if East now plays SQ. If you duck, you lose when West
indeed led from KT8. If you win SA, then maybe West did have 8x only, East
just false-carded from KQTxx. |
|
b****y
发帖数: 105 | 2 昨天在gamezone碰到一手牌，简单明了的回避打法，可惜那么多人都错过了，
好在zhang129还没忘记这些东东，成了唯一做成3NT定约的庄家。牌如下：
S:AJ94
H:KT8
D:52
C:Q863
S:8753 S:KT2
H:9652 H:73
D:K7 D:AT864
C:T75 C:AJ2
S:Q6
H:AQJ4
D:QJ93
C:K94
双有局，东开叫：
N E S W
1D 1NT PASS
3NT PASS PASS PASS
首攻：DK， |
|
b***y
发帖数: 2804 | 3 嗯，或者是E持J76/T76也行。但是，在你指出的三种机会中，东家是单张的机会非常渺
茫，防错的机会也不大（因为其它边花打光后，这已经是明牌了）。所以这个打法需要
特定结构：西家KJT，KT8，KJ8，KJ87，KT87，KJT8。有没有更好的打法呢？ |
|
b***y
发帖数: 2804 | 4 赞！
假定CK在西家，并且基本排除5-1分布之后，这个打法可以成功的情况包括：
西家持 KJxx（3 cases）、KTxx（3 cases）以及 K876
共计7种情况。
从明手出小梅花，成功的情况有：
西家持 KJT、KJ8、KT8、KJ87、KT87、KJT8
共计6种情况
还有一条可能的路线：手里出梅花，如果西家出大牌（J或T）就忍让，出小牌就用9飞
过。成功的情况有：
西家持 KJT、KJTx（3 cases）
共计4种情况
另外还应该考虑到，在这个叫牌序列下，梅花4-2分布的概率要略大于3-3，因为如果西
家是4153的牌型，有可能会加叫到5D。也就是说西家持3张梅花的情况要稍加discount。
作为结论，手里先出CQ的打法要明显优于其它。 |
|
p***r
发帖数: 20570 | 5 Suppose Ace from AK, it's impossible to play west for SQT8 or KT8 since he
knows to play ST in this situation, so you can play west for 8x, duck the
next round if east plays ST or SQ. Of course, if you suspect that west holds
KQ8x or KQ8, you can also try to play SJ, the better your opp is, the more
likely that SJ may work. However, SJ may lose when LHO holds T8x in a silly
way (also, if A shows AK, it's quite unlikely that LHO doesn't bid over your
1H opening with SKQ8(x)). so I still think low... 阅读全帖 |
|
v**********e
发帖数: 1295 | 6 Agree, 8 is probably from T8/T8x/T8xx/T8xxx which is more likely than KQ8/
KQ8x.
Also, playing T from QT8 or KT8 is not necessary. When partner holds K/Q, he
needs another entry to capture declearer's 9, which seems impossible for
this deal.
holds
more
silly
your |
|
p***r
发帖数: 20570 | 7 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 |
|
b***y
发帖数: 2804 | 8 现在局势如下：
J8
4
--
AJ7
T9 --
-- J92
9 --
KT8 965
--
AT5
--
Q32
回黑桃庄家就出SJ，东家怎么出？ |
|
i****e
发帖数: 642 | 9 Team IMP, both red. You declare this 3NT. Any plan?
AJ
KQ83
AJT84
KT
KT8
AJT
9763
Q72
Lead: C6 |
|
i****e
发帖数: 642 | 10 The real hand:
AJ
KQ83
AJT84
KT
Qxxx
xxx
-
A98643
KT8
AJT
9763
Q72
Either way, you will be down. But you are not alone, since I would play RHO
for SQ too. At table, both declarers made 10 tricks. They are stars, I have
to admit :)
Questions:
1. Given the bidding, what will you lead, S or C?
2. If C is led, does it do any good to play CK at first trick?
3. continue with Q#2, after CK holds, is there any reason not to safely play
RHO for SQ?
The actual play:... 阅读全帖 |
|
a****s
发帖数: 524 | 11 相关的情行一共8种：
KT82
KT8
KT2
K82
KT
K8
K2
K
1. 出小到Q：任意K双张，单K，还有K82，共5种情况成功。
2. 出J，再出Q：任意K双张，KT82, K82, 共5种情况成功。
3. 出J, 再飞9：任意K三张, KT82, KT, 共5种情况成功。
所以理论上，在你有理由认为上家这门花色较长时，路线3更好。否则，路线1最佳。
实战中，打J也许有一点附带的好处，就是也许能从对方的反应，猜对下面的打法。（
所谓的2和3的组合）。 这个就是艺术了。
with
has |
|
b***y
发帖数: 2804 | 12 白金双人赛，双无。你做庄3NT。
J5
AJT5
QJ9753
6
A9
K7
KT8
AK9843
叫牌过程：
E S W N
2S 2NT 3S 3NT
西家首攻S7。貌似你宁可在6D也不愿在3NT，对方的阻击叫显然很有效。现在你准备怎
么去打？ |
|
