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cozofu关于桥牌的通信(1)

: 还是问你一个序列:

: 1C  X  /   2H

: /  2S  /   3D

: /  4C  /   4H

: /  4S  /   4NT

: 1,加倍人可能是什么牌,4C如何理解,4S是否逼叫

: 2,应叫人是什么牌型,4NT是什么

: 3,假如你持SAKxxxxxHAxDKQ10Cx,上家开叫1C你如何叫牌?

4C is a cuebid, agreeing D as trump suit.

4S is nonforcing, you may have something like this:

SAKTxxx HKx DAKxx cx, 4S just suggests a game contract if partner has some basic support in S.

here, partner may have something like this:

Sx HAxxx DQJxxx Cxxx, 6D has some play.

or something like this:

Sxx HAQxx DJxxxx Cxx, I'd ratner play 4S with this hand.

For the hand you list above, I'd rather rebid 4S over 3D because 4S seems a reasonable spot. it's true that sometimes you may have cold 5D, however, you might also miss some very good 4S when you try to support pd's diamond suit. Anyway, bridge is still a major suit oriented game.

: 我持那手牌叫了4C,我觉得D真是很好,另外叫4C4D是不是有区别呢,4D也逼叫

: 进局了。

4D usually denies a C control I believe. Anyway, it's not an easy hand to bid. many experts may have different opinions.

: 我感到张数可能有差别吧,我4C还是想让同伴陈清一下牌,比如五张D可以叫出4D

: 这样打6就很确定了。同伴4H4S,我认为这是一个可打叫品,绝不是逼叫、扣叫。

: 那么4NT你如何理解?难道不是关键张问叫?

4NT is RKC in D.

I think partner 3D usually shows 5+ diamonds or very good 4 diamonds. If partner has 5 good hearts, 4D, he would probably bid 3H over 2S. if partner has 4 hearts or 5 so so hearts, 4D, he would probably bid 2NT with C stopper or 3C, without stopper. If 3S is forcing, we may have a much better life. However, it's not. also, you need a perfect hand from partner to make 6D, with that hand, he might not bid 2H over your double. Anyway, I am sure there are some experts would bid 4C with your hand. I usually tend to set up trump suit as early as I can. That's why I choose 4S here. Of course, I may miss some excellent 6D contracts.

: 你总是正确的,我很悲惨。同伴4NT后我叫了6D被加倍。我同伴的牌为:

: SxHQxxxxDAJxxCQJx,在防守不对(没逼明手将吃)的情况下,想做成打D33

: 宕四下。你会4S后再叫吗?看来还是我4C叫得不好。

yeah, 4NT isn't very bad. he does have some extra value. I'd not bid 3D with his hand though. perhaps 3NT over 2S.

: 可在我觉得跳2H总应该有这么多实力。他S单、C上点没用,有价值的也就是DA

yes, a little bid overbid. but not horrible. The worst bid is perhaps 3D. Here, I think one should play canape style. so 3D garantees a better suit than H. because we sometimes even bid 2H with:

Sx HAQxx DQxxxxx Cxx.

I reviewed the bidding sequence, perhaps it's better to bid 3S over 3D, then later support 4D if possible. 3S should be forcing here. so the bidding goes like:

1C x p 2H

   2S p 3D

   3S p 4S

    p

also, I'd rather to bid 2NT over 2S with your partner's hand. Because his diamonds are not that good. 2NT would allow partner to bid 3D or 3H, then you still can find the right spot.

So the ideal sequence is:

1C x p 2H

   2S p 2N

   3S p 4S

   p

: 这我同意。

: 那末如果你是:SAKQxxxxHAxDK10xCx,你又怎么叫,同伴2H后跳3S是什么

I'd rebid 3S to show about 8-8.5 tricks hand. so partner can decide how to bid next. he may even try 3NT with a C stopper. 

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