[pbonfanti]

A partner and I were discussing some sequences by advancer after partner's double is redoubled. In each case, the auction begins:

P - P - 1♦ - DBL -
RDBL -

Consider four options by advancer:

(1) Bid 2♦ directly
(2) Pass, then after opener passes, raise partner's bid (let's say it's 1♠ for simplicity) to 2
(3) Pass, then raise partner's 1♠ to 3
(4) Pass, then bid 2♦ over partner's 1♠ after redoubler passes (or cue diamonds if redoubler acts).

We feel that (1) is an attempt to play 2♦; that (2) is obstructive; and that (4) is invitational, essentially exposing a psych. We're not sure about (3): it seems that a hand that wanted to preempt should have bid immediately, so perhaps it's a distributional game invitation (Axxxx/Kxxxx/x/xx for example). However, we're not sure to what degree our opinions represent standard agreements. Any thoughts are appreciated.

[bluecalm]

My opinion is that after 1m opening pass should be penalty. After 1M I prefer pass being no attractive bid.
I would especially like to play that in lands of better minor and precision when often 1D redoubled is our best spot.

[gnasher]

(1) Weakish with both majors, to teach the opponents not to make stupid redoubles. I've never had a hand where I wanted to bid 2♦ expecting to make it, If I thought 2♦ was our cheapest negative, I could pass and then run to 2♦ whne we got doubled somewhere else.
(2) A hand that wants to compte the partscore, eg a balanced 6-count with four-card support.
(3) Invitational, exposing a psyche
(4) Exposing a psyche, the same values as 1♦ dbl pass 2♦.

Against a 3+ card minor, hands where you want to defend 1♦xx are very rare, in my experience.

[bluecalm]

Quote

Against a 3+ card minor, hands where you want to defend 1♦xx are very rare, in my experience.

I agree with this. Still, hands where we don't have convenient bid after 1m - dbl - rdbl are even more rare.
I play only vs diamonds 4+ (or 5+ or 4-4-4-1 or 4-5minors) my all life and I already encountered several hands when I wanted to pass 1D redoubled. The situation is different after 1M, especially after 1S because then we often have several possible places to play and want to offer a choice to partner.

Also I think that after rdbl you should be very aggressive and bid routinely 2S with any 5 spades or good four. People redouble too much and it pays off to jump to their throat with garbage when they can't profitably double you. For example: KTxxx xx xxx xxx is easy 2S imo. I wouldn't ever pass with any hand with half decent suit.
The only other meaning of pass than penalty which makes sense imo is 3-3 in majors exactly without 5 clubs (with 3-2 we are not comfortable anyway if partner bids our 2 card major so it's better to bid 3 card major ourselves hoping they can't double that).

[gnasher]

bluecalm, on 2012-April-02, 01:54, said:

The only other meaning of pass than penalty which makes sense imo is 3-3 in majors exactly without 5 clubs (with 3-2 we are not comfortable anyway if partner bids our 2 card major so it's better to bid 3 card major ourselves hoping they can't double that).

So with 3424 opposite 3244 you play in 1♠x? Marvellous.

You can use pass on a rather wider range of hands than you suggest. For example:
- Pass then convert 1♥ to 1♠ offers a choice between spades and clubs
- With 2344 or 2434, you pass to see if partner has four hearts. If he bids 1♠, you convert to 2♣.