Winstonm, on 2021-July-11, 11:17, said:
As with everything, the range of the bid is a choice. I’ve played 13-15 and 14-16. This of course means that 3nt takes the next natural raise category . You can still find the diamond fit over 3n as long as you are aware that 4n is a place to play and a viable contract.
Btw, I didn’t claim this ideal - just showing that J2N is limited in usefulness.
But there is no reason 2n can’t be balanced forcing raise without a set upper limit - it would be un-Jacoby.😁
It’s fairly standard, when playing 1m 2N as forcing, which I do, to have 2N be 12-14 (or for us, since we open almost all 11 counts) 13-15 or 18-19 (again, for us, 19-20), but it’s unusual and, imo, theoretically unsound not to split the ranges. Playing it as 14+ leaves the partnership struggling with exactly this sort of scenario. Opposite 15-16 balanced, slam is improbable absent a good mesh….and why on earth should responder be 2=4=4=3 rather than the slightly more likely 2=4=3=4?
As for opener bidding 4D over a 15-16 3N, at mps, you’d have to pay me a lot of money to offer a slam probe on Axxx! See above….why can’t responder be 2=4=3=4?
And before you say he can sign off in 4N with Kx AQxx KQx Qxx imagine opener with 5=5 in spades and diamonds.
No, for me the most plausible routes to 6D are:
1. 2D showing 4+, which I do not play
Now opener has a problem. I think it common to splinter with limited values. The idea of a splinter, usually, is to invite slam when partner has less than strong slam interest ab initio but learns of a good mesh, with all his cards working. So I’d splinter with AJxxx x Axxx Kxx or possibly Axx or KQx in clubs, but this hand is too strong imo.
So I’d bid 3D.
Over 3N, I’d bid 4C, which should get us to slam
2. 2C by responder, fetching 2D by opener.
North raises diamonds. While south’s diamonds are horrible for slam, the rest of the hand couldn’t be more slam friendly, so I can see bidding 4C. Btw, for those who start this way, you need a clear understanding of the meanings of 3H or 3S by opener.
3S should, imo, be natural, usually 6-4. 3H is more interesting.
Since the mantra ‘game before slam’ is justifiably a sound idea, 3H should be a probe for the right game rather than a slam try, at that point. Put another way, how should responder bid over 3D with AQJxx Kxx Axxx x, given that 2C didn’t show more than 3 clubs and didn’t promise a stopper? I think 3H is clear, hoping to catch a 3S call on, say, Kx Axxx KQxx Qxx or Kx AQxx KJxx xxx
All of which tends to make bidding 4C over 3D a bit easier, since we really don’t have viable alternatives. We have to hope that partner doesn’t hold xx AKJx Qxxx QJx….but now we can rest in 4N, one hopes. Of course, if 4N over 4C is keycard, we have issues🥴
Meanwhile, in real life I can well understand a lot of pairs stopping in 3N. I am, as always, amused by how, when both hands are presented, so many posters write as if getting to slam is obvious or simple.
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari
+++++++++++++++++++++
Hands rotated to make West dealer. Guess at a possible 2/1 auction.
I agree that 3N would normally end the auction but if opener patterns out with 4♣, then EW can reach the slam.