Coping with interference after 2NT

[ruotal]

Hi everybody !

 

I open 2NT with : ♠ AQ832 ♥ AK3 ♦ Q98 ♣ AQ

 

My left openent bid 3♦ and my partner bid 3♥.

 

I thought it was a transfert so i bid 3♠. My partner bid finally 3NT.

 

I pass because I was not really sure it was Jacoby trans.

 

We collapsed for -4.

 

Somebody could explain me how to bid when opponent intervene after a 2NT opening bid ?

 

On a 1NT we play lebensohl.

 

andré

[Codo]

These interferences are seldom, so I would use the same approach as in other siutations:

Double is negative,

3 NT is nat,

3 any is nat and forcing,

pass and bid is a long weak suit.

 

Surely not optimal, but I believe that the brain used for learning special conventions after an interference after a 2 NT opening is better used elsewhere.

[P_Marlowe]

Hi,

 

first off all, it does not happen very often.

=> double is penalty or neg. (play it similar

to the case, if the intervene over 1NT

=> new suit natural and forcing

=> 3NT to play

 

I am not sure, if pass by responder should be

forcing, in case you play neg. X, I would say

yes, at least if opener is short, i.e. holds a

doubleton.

 

With kind regards

Marlowe

[SoTired]

I assume 3H was natural, but you did not have to sit for 3N when you know that may not work so well. Since you like both majors, just bid 4D and let partner choose the major s/he has.

[neilkaz]

I assume 3H was natural, but you did not have to sit for 3N when you know that may not work so well. Since you like both majors,  just bid 4D and let partner choose the major s/he has.

Once PD bids 3NT there's a real good chance his 3♥ was intended as natural.

 

You can also call 4♥ over 3NT with your fine support and is somehow PD has ♠ and not ♥ he can bid them.

 

That being said 4♦ should convey the same info, but the fewer artificially suits I bid when PD and I may have a missunderstanding, the better I score.

 

.. neilkaz ..

[Guest Jlall]

Heh, in my youth I used to bid a LOT over 2N openers for just this reason against some opps; they don't know what to do.

[Flame]

When you get to a unknown situation you got to think of all the important options and forget your hand for a while.

Now 2NT 3♦, what is important here ? clearly showing a major suit is important, how will you show the major suit ? suppose you will use transfers 3♥ will show ♠ and how will you show ♥ ? so the transfer way is not good, then we use natural.

[Gerben42]

Undiscussed situation equals natural bidding. Inventing a transfer here from either player is a bad idea.

[Guest Jlall]

btw, you could have solved this problem with some creative thinking.

 

You knew partner's 3H was either hearts or spades. So you bid 3S and partner bid 3N. You're still not sure. You can bid 4H here, and partner will pass with hearts or bid 4S with spades (since 4H would be a cue for spades).

[DWM]

Just thought with balance of the points and a 10 card fit why only bid 3♠ after the transfer?

[kenrexford]

btw, you could have solved this problem with some creative thinking.

 

You knew partner's 3H was either hearts or spades. So you bid 3S and partner bid 3N. You're still not sure. You can bid 4H here, and partner will pass with hearts or bid 4S with spades (since 4H would be a cue for spades).

On a similar vein, Responder also can do some creative thinking when this problem arises. One thing is to never use Texas in a confused auction -- you need the space to work out the problem. The other is to show 5-5 as a force of hearts (2♥...4♥ shows 5-5 and demands that hearts be trumps, even if no fit, sort of, LOL).

 

This reminds me, though, of a favorite problem of mine.

 

I had overcalled 2NT, non-jump, in pass-out seat after 2♠-P-P-? Partner now bid 3♠, undiscussed, doubled.

 

I happened to have five hearts and four diamonds and a maximum, without a good spade stopper. Not sure what 3♠ meant, I decided:

 

(1.) If partner takes 4♥ as natural, I have five of them -- this is good.

(2.) If partner meant 3♠ as asking for a stopper, I have no stopper, and 4♥ would again be natural.

(3.) If partner meant 3♠ as some minor start, he can take 4♥ as a super-acceptance of diamonds, or a cuebid. I can even handle it as RKCB for clubs, or diamonds. I can figure out his answer, probably.

 

4♥ was passed. Partner had a void in hearts. I did not expect him to read 4♥ as "balanced, 15-17, with a self-playing heart suit."

 

That same Swiss round, Mr. Katz, our opponent, declared 4♥ himself on a 5-card fit, a 4-1 fit. He was initially angry, even more so when I chastised him that his partner at least had one heart for him, but then we all laughed.

[goobers]

Just thought with balance of the points and a 10 card fit why only bid 3♠ after the transfer?

Well if you're not sure if it's a transfer...