Posted 2006-December-22, 00:33
This is a problematic hand. However, it offers good arguments for some alternative theories.
The first that comes to mind is the merits of only opening 1♦ with an unbalanced hand, usually with a stiff or void somewhere. If, however, a 5-4-2-2 minor two-suiter is allowed, this is no solution. If a stiff or void is promised, North is all that much more leaning toward the merits of preferencing diamonds. I'm not all that convinced that the two Jacks justify more than a simple preference -- Opener will move when appropriate.
A second is the idea of WJS's or constructive jump shifts. The former makes a jump to 3♠ unnecessary, as a simple 2♠ call will show this strength and will enable South room to complete the picture. The latter allows a 3♠ call on this hand, which will describe a poor suit and, accordingly, expected values for 3NT or for a minor contract, unless 3♠ is GF.
The third is a pet convention, 2♦ opened as an intermediate minor two-suiter. This handles the problem very well.
All that said, with normal bidding, I'd simply convert 2♣ to 2♦. I strongly dislike the jump rebid into such a lousy suit under these circumstances. In practice, 2♦ should yield a 2♥ call, completing a lot of the pattern and allowing some probing of better things.
"Gibberish in, gibberish out. A trial judge, three sets of lawyers, and now three appellate judges cannot agree on what this law means. And we ask police officers, prosecutors, defense lawyers, and citizens to enforce or abide by it? The legislature continues to write unreadable statutes. Gibberish should not be enforced as law."
-P.J. Painter.