[Bbradley62]

 bd71, on 2010-December-21, 23:14, said:

I double-check about the 2N bid, and am told that over a minor suit bid, they play "Unusual Notrump" as showing the other minor and an unknown major. After we object that that isn't really "Unusual Notrump", LHO tells us "you learned it one way, we learned it another way."

Your next two words should have been "Director, please", both to educate your opponents and to protect yourself from damage.

[jh51]

bd71, why do people so misuse the unusual 2NT against you? I seem to recall a hand in the 2009 NAP distict finals where the opponents made that bid over 1♠ and wound up in a heart contract, which you doubled. When the smoke cleared, they had made their contract and we were fixed since the 2NT bidder had misbid.