gwnn, on Apr 1 2009, 03:10 AM, said:
This came up in bidding practice. I forced to game on a median 13 count but 4♥ was makable. Ken, do you need to open 1♠ on 4-6 in the majors in canape?
No. You could opt to treat the hand as a one-suited major hand if you want. If the suits were 6♠/4♥, then you could predict a 1♥-P-1NT-P-??? problem and not want to rebid 2♠ for some reason, but the reason eludes me. With 4♠/6♥, you have no predictable problems. But, I suppose some hand with 6 solid hearts, four little spades, and nothing else makes some sense. I just would open 1♠ anyway, though.
The more I think about this, though, the problem may be greater in canape than I first thought. 1♠...2♥ sounds like 4+♠/5+♥, of course. However, there is a possibility that the partnership bids this way with 5♥/5♠ in some situations, which muddies the meaning of the heart rebid somewhat. If so, then there might be a case-specific problem for some pairs playing canape, where opening and rebidding the hearts might make more sense than otherwise, perhaps with some problematic range of hand.

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