[Oceanss]

Hello
When partner opens strong 2♣, we play 2♦ as any strength waiting bid, 2M being 5+c natural positive with 2/3 top honors, etc. If responder is bust, his negative would be his rebid (cheapest minor or 3N over 3♦).

How is best to handle the Interference over responder's bids :
2♣ - (p) - 2♦ - (2♠ or 3♥ or any other bid)

and over natural positive ?
2♣ - (p) - 2♥ - (2♠)

Thanks

[ggwhiz]

We play that if there is a direct bid over a 2♣ opener, double shows a bust and pass shows a game force (doesn't promise the worlds fair though).

You can play the same thing here where the 2♣ bidder can pass (forcing) and responder bids as above. For the 2♣ opener to pass they would likely have a normal 2nt rebid without the interference but if they bid instead it should be natural and game forcing with the more shapely ones.

In the second case I would just bid naturally with double by opener showing a 2nt rebid without heart support and pass forcing for responder to do whatever (double = min for the 2♥ bid?). A rare enough auction that we haven't dotted all the t's or crossed the i's.

[Oceanss]

TY so much, your answer is extremely helpful & clear : )