Why is it wrong to open 2♣ with the north hand?
When you open 2
♣, most of the time partner will bid 2
♦. This leaves you with two options. You can rebid 2
♥, but now partner will take you for a five-card suit. He might well raise your hearts on three cards, and in general you could get to a bad 6
♥ contract when you'd be better off in a minor suit.
Alternately you can rebid 2NT. But this jumps the auction to the 2NT level without really describing (or perhaps with misdescribing) your hand. This will make it hard to find a minor suit fit for slam. If 3NT is right (and partner quite often will raise 2NT to 3NT) then partner needs to have spade stuff. In this case probably 3NT from
partner's side will be better anyway to avoid the spade lead through.
Alternately, if you open in a minor suit you will very rarely miss a game. If partner can't bid over your 1
♦ opening, it's rare that you will make a game contract with this hand in any case. And opponents will often bid (they have
lots of spades probably) to "save you" in any case. Assuming that partner doesn't pass 1
♦, you have a much easier time finding a minor suit fit after this opening and may get the chance to show
all three suits below 3NT.
What's the problem with south's bidding?
Often a 2
♣ opener will deliver 22+ points. No, it doesn't absolutely promise 22+ points, but that's the balanced range and should be considered a "normal" 2
♣ opening. The lighter hands that open 2
♣ often have useful distribution. Holding 11 points opposite 22, you should bid 6NT. If partner has the lighter hand (including the 5+
♥ he showed by rebidding 2
♥) then you will often have play for either 6NT (running the heart suit) or 6
♥. At a minimum, south must
try to get to slam. A 3NT bid here could be some six-count with scattered queens, and I'd expect opener to usually pass it.
What's the best contract?
The right contract on these hands is 6
♦. Basically you lose a spade, ruff a spade in dummy, pull trumps, and claim. Note that diamonds
were never even mentioned by either player on the bidding, and yet slam in the suit is excellent. This, as much as anything, indicates that something went terribly wrong.
Adam W. Meyerson
a.k.a. Appeal Without Merit