Posted 2013-April-22, 11:12
I'm late to the thread, but given the system constraints (which are in fact the constraints with which I play) I opt for opening 2N.
The BW used to (and maybe still does) have a Problem D scenario, in which the criticism was sometimes voiced that the answers often appeared to be impacted by knowledge of partner's problematic action.
Thus, were we told that partner would respond to 1♦ via 1♥, I suspect a lot of people would be happy with 1♦, intending to rebid 3N.
Indeed, were I to be sure that partner would respond in hearts, I'd be happy with 1♦.
However, I still prefer 2N, because I see relatively little downside, and happen to think that this is a fair, tho flawed, assessment of the hand.
Most importantly, while I think we can handle just about all responses to 1♦ other than 1♠, a 1
♠ response really does pose a horrific problem. If I did open 1♦, I'd jumpshift into clubs, but with trepidation.
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari