[Stefan_O]

Bidding starts:

1♣ - (2♣) - 3♦

1♣ opening is 2+♣ (5card majors & 4card diam openings).

2♣ overcall is natural showing 6+clubs.

With no particular agreements on this, how would you interpret pd's jump to 3♦?
Diamonds obviously... but what strength? Forcing or not?

[jogs]

Undiscussed, another bad bid. It better be a fit jump and forcing by an unpassed hand.

[Jinksy]

Are you confident that 2♦ would have been forcing? Some people I know would prob bid this naturally, worried that 2♦ could be passed. With more experienced players, I'd assume fit.

[Stefan_O]

Fit jump?
Note that LHO is showing 6+clubs...

[alok c]

If undiscussed,forcing.Imo either strong hand with ♦ or more likely solid ♦ suit & asking partner to bid 3nt with ♣ stopper.

[Zelandakh]

Strange, I seem to be in a quorum of one in thinking this ought to be preemptive. The FJ makes little sense with partner showing 2 and RHO showing 6, while strong is a fairly ridiculous waste of bidding space.

[wank]

yes weak

[ggwhiz]

2♦ is natural and forcing, a fit jump with 6 clubs in front of you makes no sense...

Must be weak, not only non forcing but drop dead without an exceptional opener.

[NickRW]

Preemptive is the only thing that makes sense in context.

[Phil]

well it cannot be fitted if LHO is showing the suit. That would be absurd.

If 2♦ is forcing, then 3♦ is weak. If 2♦ is NF (I actually play this way), 3♦ in my preferred method shows a good hand with hearts, since 3♣ shows diamonds.