[nige1]

Mike asks about the auction, playing a 2/1 style with weak 1N opening bids

My preferences
Over 3♦... 1: 3♠ (F1), 2: Double, 3: 4♦ (Choose M).
After 3♠, over 5♦... 1: 5♥, 2: Double, 3: 5N (Pick a slam).
After Double, over 5♦... 1: 5N, 2: Double, 3: 6♦.

---

[ycos]

possible bid discussion :

3♠ - you must have one spade more and one h less
DBL - you must have at least one card major less, 44,45 or 54 on majors --> 4(5)♠ , 4(5)♥ , 1(0,2)♦ , 4(3,5)♣
4♦ - 5+5+ majors, best bid i think
5♦ - is exlusion , not majors (5 cards+♣ and void♦)
5nt - i think u must have 5 cards♣
6♦ - majors , but can't play more than that (good bid)

[han]

I would expect modern players to use 5NT as pick-a-slam, even in this auction. I don't think that I'd use it though, because I am not sure what partner would expect.