i****e
发帖数: 642 | 1 IMP red vs white. You sit west defending 3NT.
S W N E
P P 1D P
2D X XX 2H
2NT P 3NT AP
You hold:
QT74
KJ2
7
KJT82
You lead CJ or T according to your agreement, and see the dummy:
AK95
843
KQT5
AQ
Declarer wins with CQ, and DK, 3, 2, 7. D5, 9, A. What do you discard? Is it
obvious? |
m****r
发帖数: 6639 | 2 不 obvious。
【在 i****e 的大作中提到】
: IMP red vs white. You sit west defending 3NT.
: S W N E
: P P 1D P
: 2D X XX 2H
: 2NT P 3NT AP
: You hold:
: QT74
: KJ2
: 7
: KJT82
|
b***y
发帖数: 2804 | 3 同伴的D9是一张奇怪的牌。同伴至少要有四张方块，为啥要出D9呢？
【在 m****r 的大作中提到】
: 不 obvious。
|
j*******e
发帖数: 2168 | 4 貌似垫C不会铸成大错
【在 i****e 的大作中提到】
: IMP red vs white. You sit west defending 3NT.
: S W N E
: P P 1D P
: 2D X XX 2H
: 2NT P 3NT AP
: You hold:
: QT74
: KJ2
: 7
: KJT82
|
j*******e
发帖数: 2168 | 5 是奇怪。根据叫牌，同伴3或4张D，而如果要宕，只能期望是4张。
所以我觉得垫S或H都是有危险的
【在 b***y 的大作中提到】
: 同伴的D9是一张奇怪的牌。同伴至少要有四张方块，为啥要出D9呢？
|
b***y
发帖数: 2804 | |
b***y
发帖数: 2804 | 7 估计同伴方块是J9xx，庄家大概有HA。如果庄家还有HQ，垫掉梅花之后庄家可以兑现CA
和SAK，然后投入西家。但如果是这样的结构，垫黑桃或红心也不行。唯一能希望的是
同伴梅花能进手，比方持9xx。所以垫梅花的时候要留一张小牌，不要把C2和C8都垫掉。
【在 j*******e 的大作中提到】
: 是奇怪。根据叫牌，同伴3或4张D，而如果要宕，只能期望是4张。
: 所以我觉得垫S或H都是有危险的
|
j*******e
发帖数: 2168 | 8 en, 但我觉得庄家不应该有HAQ，不然貌似应该叫1NT而不是2D？
CA
掉。
【在 b***y 的大作中提到】
: 估计同伴方块是J9xx，庄家大概有HA。如果庄家还有HQ，垫掉梅花之后庄家可以兑现CA
: 和SAK，然后投入西家。但如果是这样的结构，垫黑桃或红心也不行。唯一能希望的是
: 同伴梅花能进手，比方持9xx。所以垫梅花的时候要留一张小牌，不要把C2和C8都垫掉。
|
b***y
发帖数: 2804 | 9 是的，不像有HQ，but you never know...
我觉得比较好的是垫CK，反正庄家已经知道我有CK了，同伴可能还不清楚。最要紧的是
黑桃不能垫。
【在 j*******e 的大作中提到】
: en, 但我觉得庄家不应该有HAQ，不然貌似应该叫1NT而不是2D？
:
: CA
: 掉。
|
j*******e
发帖数: 2168 | 10 是的, 黑桃不能垫是obvious的：）
而垫红桃在同伴仅有2C2S时也会送成：庄家可以先送一圈H，再HA清掉你的H，以后打掉
CA和SAK用H投入同伴。
【在 b***y 的大作中提到】
: 是的，不像有HQ，but you never know...
: 我觉得比较好的是垫CK，反正庄家已经知道我有CK了，同伴可能还不清楚。最要紧的是
: 黑桃不能垫。
|
|
|
b***y
发帖数: 2804 | 11 嗯，赞。
【在 j*******e 的大作中提到】
: 是的, 黑桃不能垫是obvious的：）
: 而垫红桃在同伴仅有2C2S时也会送成：庄家可以先送一圈H，再HA清掉你的H，以后打掉
: CA和SAK用H投入同伴。
|
i****e
发帖数: 642 | 12 You guys already figured out almost everything!
pd does have D J9xx. Declarer has HAQx, but as you guys analyzed, this is
not important.
The fact is that pd has every weak hand, you have possible entry and long
club. No one likes to discard the long club at this situation. This hand is
from a Vugraph. West at both tables discarded a spade, which is obviously
wrong according to JO :)
The commentator said it is "obvious" to discard a heart, since declarer
could not figure out the layout. It is not easy for declarer to play it
correctly, but it seems it far from obvious, at least to me, to discard a
heart.
Declarer had something like
xxx
AQx
Axxx
xxx
I did not pay attention who had C9 :)
【在 b***y 的大作中提到】
: 嗯，赞。
|
j*******e
发帖数: 2168 | 13 But, it is really quite obvious that declarer can simply set up a S for the
9th trick if you discard a S. Even I know that:)
is
【在 i****e 的大作中提到】
: You guys already figured out almost everything!
: pd does have D J9xx. Declarer has HAQx, but as you guys analyzed, this is
: not important.
: The fact is that pd has every weak hand, you have possible entry and long
: club. No one likes to discard the long club at this situation. This hand is
: from a Vugraph. West at both tables discarded a spade, which is obviously
: wrong according to JO :)
: The commentator said it is "obvious" to discard a heart, since declarer
: could not figure out the layout. It is not easy for declarer to play it
: correctly, but it seems it far from obvious, at least to me, to discard a
|
b***y
发帖数: 2804 | 14 So it was on broadcast... which game was it? Pitching heart is probably OK
in practice, but pitching club can be the legitimate defense (to hope
partner has C9). One has to balance between those two lines, but keeping
spades is pretty basic, 4 spades are viewable from dummy, right? |
b***y
发帖数: 2804 | 15 Also, pitching a heart is not going to solve the problem. Declarer can play
one more diamond, West has to pitch a club anyway (cannot pitch HJ). Plus,
declarer surely knows West has HK (only 12 HCP between East and West, but
West made takeout X), so it is not correct to assume that declarer "cannot
read the position". |
i****e
发帖数: 642 | 16 It is some Swedish event on 5/29, if I remember correctly. We all think we
need to keep 4 spades, but both west discarded spade at the first chance :)
So both declarers easily got the 9th trick.
【在 b***y 的大作中提到】
: So it was on broadcast... which game was it? Pitching heart is probably OK
: in practice, but pitching club can be the legitimate defense (to hope
: partner has C9). One has to balance between those two lines, but keeping
: spades is pretty basic, 4 spades are viewable from dummy, right?
|
j*******e
发帖数: 2168 | 17 如果确定庄家还有HQ，好像这墩牌上垫C还是H已经无所谓，因为庄家多半是继续两圈D
逼迫你垫牌，
而你不能连垫C，不然庄家清掉你的C再SAK就能投入你，
所以你似乎只能垫2张C和1张H，这时庄家面临选择：打你4414；打S3-3；打你H垫剩Kx.
..
而如果同伴DJ吃进回出H的话，庄家A一拔就知道怎么打了吧。
play
【在 b***y 的大作中提到】
: Also, pitching a heart is not going to solve the problem. Declarer can play
: one more diamond, West has to pitch a club anyway (cannot pitch HJ). Plus,
: declarer surely knows West has HK (only 12 HCP between East and West, but
: West made takeout X), so it is not correct to assume that declarer "cannot
: read the position".
|
b***y
发帖数: 2804 | 18 庄家必须打得十分巧妙，拔方块AKQ，然后送出第四张方块给东家，同时挤住西家。是
一个踏脚石挤牌。我觉得并不是非常obvious. :)
【在 j*******e 的大作中提到】
: 如果确定庄家还有HQ，好像这墩牌上垫C还是H已经无所谓，因为庄家多半是继续两圈D
: 逼迫你垫牌，
: 而你不能连垫C，不然庄家清掉你的C再SAK就能投入你，
: 所以你似乎只能垫2张C和1张H，这时庄家面临选择：打你4414；打S3-3；打你H垫剩Kx.
: ..
: 而如果同伴DJ吃进回出H的话，庄家A一拔就知道怎么打了吧。
:
: play
|
i****e
发帖数: 642 | 19 Interesting. The defense problem becomes a declaring problem :)
It seems that, with best play, declarer can always make it, even if east has
C9.
【在 b***y 的大作中提到】
: 庄家必须打得十分巧妙，拔方块AKQ，然后送出第四张方块给东家，同时挤住西家。是
: 一个踏脚石挤牌。我觉得并不是非常obvious. :)
|
b***y
发帖数: 2804 | 20 Yes. But defenders should make not make it easier for declarer by discarding
spade. Also, if partner has HQ, pitching a spade would be deadly wrong.
has
【在 i****e 的大作中提到】
: Interesting. The defense problem becomes a declaring problem :)
: It seems that, with best play, declarer can always make it, even if east has
: C9.
|
|
|
j*******e
发帖数: 2168 | 21 if partner has HQ, pitching a "heart" would be deadly wrong-- that's what
you meant to say?
discarding
【在 b***y 的大作中提到】
: Yes. But defenders should make not make it easier for declarer by discarding
: spade. Also, if partner has HQ, pitching a spade would be deadly wrong.
:
: has
|
b***y
发帖数: 2804 | 22 No I meant spade discard is technically wrong in any case. West has to hope
that partner holds HQ, or declarer has HAQ but couldn't read position right.
Club pitch is best, heart pitch is all right if partner has HQ, spade pitch
is almost 0% defense, there is no case where it can be right.
【在 j*******e 的大作中提到】
: if partner has HQ, pitching a "heart" would be deadly wrong-- that's what
: you meant to say?
:
: discarding
|
j*******e
发帖数: 2168 | 23 H pitch is not all right if pd has HQ and 2542 shape.
hope
right.
pitch
【在 b***y 的大作中提到】
: No I meant spade discard is technically wrong in any case. West has to hope
: that partner holds HQ, or declarer has HAQ but couldn't read position right.
: Club pitch is best, heart pitch is all right if partner has HQ, spade pitch
: is almost 0% defense, there is no case where it can be right.
|
b***y
发帖数: 2804 | 24 Yes agree.
该死的方块10～～
【在 j*******e 的大作中提到】
: H pitch is not all right if pd has HQ and 2542 shape.
:
: hope
: right.
: pitch
|
