Interference after 2C

[Ant590]

This topic is kind of an extension of Haoni5's bidding problem in http://forums.bridgebase.com/index.php?showtopic=29949

 

In short, what is 'expert standard' in the sequences

 

a] 2♣ - (2x) -

b] 2♣ - (3x) -

c] 2♣ - (dbl) -

d] 2♣ - (pass) - 2♦ - (2x) -

 

I'm sure someone told me once that in a], b] and c] (re)double shows a weaker hand than pass, but I'm not so sure of the merits of this.

 

Thanks.

Ant.

 

P.s.

 

If it matters, our general sturcture after 2♣ is

2♦ = semi positive or better

2♥ = double negative

2♠ = 8-10 bal or 14+ bal

2NT+ = transfers showing a semi-solid suit or better (opener completes to set suit)

[y66]

I don't know.

 

Bridge World Standard is:

If two clubs is overcalled, responder’s double shows double-negative strength and a pass is forcing. Opener’s double of the overcall shows a balanced hand.

 

There is no agreement about responder’s actions after two clubs is doubled.

I play this, including "no explicit agreement after they double 2C". :rolleyes: Will follow up on that one.