[mohitz]

What do responder's bids mean over 2C interference? Does it change over a jump overcall?

Will post the problem hand after i get some responses.

TIA

[inquiry]

I use a non-standard treatment. Without interfernce, 2C-P-2D is semi-positive, and 2C-P-2H in negative with no "sure tricks", while 2C-P-2S has teh same meaning as the 2H bid, but suggest if hearts were trumps, the hand would be worth one trick (ruffing value generally).

For me, over interference, responders doubles are takeout, his NT bids shows stoppers in their suit, and his free bids show 2+ useful cards and generally a suit Kxxxx or better. But we keep 2♥ and 2♠ to their usual meaning (as if no interference) if responder has a chance. So if 2♥ or 2♠ is available, then pass would be semi positive. If RHO doubles 2C, then pass shows ONE TRICK only, 2D shows two tricks or more and is now game force.

The level of the bidding doesn't make much difference (other than taking away the chance for negative 2♥ or 2♠ bids). So pass becomes up to semi-positive wihout shape for Takeout Dbl.

[awm]

I think the standard treatment is that pass shows values and double shows weakness.

[ONEferBRID]

awm, on Feb 13 2010, 12:55 PM, said:

I think the standard treatment is that pass shows values and double shows weakness.

Ditto... DBL is the weakest action:

Bridge World Standard ( but not universal acceptance):

2C - ( say 2H/2S ) - ??

DBL! = 2nd negative
pass! = positive, forcing [ Next DBL by Opener = balanced "2NT" hand ( I presume 22-24 ) ]

[peachy]

It is important to include 2C opener's followup bids as well, otherwise one is left as much in the dark as when responder's actions in competition were not defined/agreed.
Better to use general principles than specific bids, such as by responder:
Pass is positive
Dbl is bust or bad hand
NT never bid directly (if NT is played, it is opener's privilege at least initially)
Suit bids are positive with hands that would not be interested in penalizing the overcall - at least not in this round of bidding.