[rbforster]

Playing normal weak 2 preempts, say 4-10 HCP and (usually) a 6 card suit, we're all familiar with the normal responses (2NT asking of some type, new suits forcing, etc).

This doesn't come up much I guess, but what would you make of the responses to a weak 2 by a passed hand? Like P-P-2H-P-2NT, or P-P-2H-P-3C for example.

On a more likely note, what about redoubles after a takeout double? For example, either P-P-2H-X-XX or P-P-2H-X-P-P-XX. It seems unlikely that the passed hand XX could be business for example, and certainly not the preempter. Does anyone have any agreements for these sorts of situations, or does one just assume XX is SOS by either hand?

[Free]

This all depends on style, and opening bids in 1&2 seat. If you don't have a minor 2-suiter opening, you might want to use 2NT for this with a void in partner's suit. This might also be a bad idea if you play decent 2-level openers in 3rd seat, but if it can be a silly 5 card I'd say use many bids for escape...

[hatchett]

Passed hand XX I play as SOS. XX by the weak two opener I would play as SOS as well, can be useful occasionally if you play very frisky weak twos.
P P 2H/2S X 2NT could be played as a save suggestion.

[JohnnyH7]

I use pass pass 2M p 2N as a shortness ask. If you're going to bid game with few high cards, you need the right shortness and no wastage.

p p 2M X XX would not exist for me.

[pclayton]

2N asks for shortness opposite a 3rd seat opener - no reason to look for anything else. I still play Ogust opposite a 4th seat weak 2.

[whereagles]

Since a 3rd seat weak 2 is rather random and a 4th seat weak 2 is rather solid, there's only need to bid if you have a fit. Thus all changes of suit should become fit-bid like (fit + side suit values, invitational), with 2NT a general good raise to the 3 level.

Note: in the case of 3rd seat weak 2, if RHO bids over it, it's best to change the 2NT bid into "sacrifice if your weak 2 is offensive, pass otherwise", so as to mitigate the randomness of the bid.

[kenrexford]

My personal preference is for 2NT normally to show a minor two-suiter if in response to a third-seat weak two, natural if responding to a fourth-seat 2-bid.

On a similar note, new suits would have lead-directive fit showing tendencies opposite third-seat (fit and raise, but lead this perhaps), whereas the new-suit call tends twoard stopper exploration opposite fourth-seat bids (PPP-2S-P-3D would tend to show interest in 3NT without a club stop). XX opposite 3rd seat would tend to be Rosenkranz (or reverse R.), penalty opposite a 4th Opening. 3NT, btw, is a 4-level preempt with no lead preference after a 3rd-seat open.

In other words, direct the defense after a third-seat Open (but allow a minor-oriented correction), and enhance finding 3NT after a 4th opening.