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2 way ckback/xyz


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in this month's bulletin, someone wrote billy miller with a question regarding who should have bid the hearts... his answer was correct but it triggered a question in my mind... when opener can bid 1nt after interference, are ckback or xyz still on?

 

say it goes 1c (1d) 1h (p) 1nt or 1d (p) 1h (1s) 1nt... how do most of you play this? for what it's worth, here are the hands the writer asked about

 

Q

K952

KT654

QJT

 

KJT

A874

32

A852

 

south dealt, bidding was 1c (p) 1d (1s) 1nt (p) 3nt ... 3nt was down and 4h made, the writer (south) asked who should have mentioned the hearts... playing standard 2/1, north should (he has what used to be called a responsive reverse)

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Why would it not be on if you've agreed to play it?
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Suppose in an unopposed auction you were playing two-way checkback so that 2 is a puppet to 2 (as a sign off in or invitational hand) and 2 is GF.

 

Then I think if the bidding starts eg 1 (P) 1 (1) 1NT, you should alter your structure as you have two new sequences:- the direct cue-bid and the indirect cue-bid (i.e. 2 followed by 2).

 

What exactly you should play them as is up to you, but it seems sub-optimal not to put them to some use.

 

Eric

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I didn't think checkback would apply here if you play Walsh style since

1C 1D denies a 4 card major without game forcing values?

 

Therefore

 

1C 1D 1NT 2H/S is natural and game forcing.

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the way i learned, when responder first bids 1d then 2h (or 2s) after opener's nt rebid, it isn't necessarily game forcing... it shows a good hand, yes, but the example hand definitely falls in that range...

 

with <9/10 hcp, unless the dist was wild, i'd always show the major first (playing walsh)

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I didn't think checkback would apply here if you play Walsh style since

1C 1D denies a 4 card major without game forcing values?

 

Therefore

 

1C 1D 1NT 2H/S is natural and game forcing.

Playing xyz with walsh, there isn't a lot of reason to play the reverse by responder as game forcing. It can easily played as invitational. Even then for us, just about all invitational hands with a 4 card major go through 2 first. Ax KQxx Qxxxx xx is bid 1 - 1 - 1N - 2 - 2 - 2.

 

So, the sequence 1 - 1 - 1N - 2 major becomes an invitational raise to 2N with a fragment in the suit bid: xxx KQx AQxxx xx.

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