PhilKing, on 2013-April-29, 07:51, said:
Questions one and two - for me, it's natural and encouraging but non-forcing.
Question three - 3♥. This is know as a Bluhmer bid. We can't possibly want to play in hearts after this start, so it is an impossible jump showing exactly nothing in hearts and a huge hand for the bidding so far. 7♣ is excellent opposite:
♠Axxx
♥-
♦AKxxx
♣KJxx
And pard can visualise it over 3♥. You can go a stage further and bid 4♥ over 2♣ to show the absolute nuts.
Question four - If you play 1♠ as forcing, you can use 3♣ as a GF now. I play 1♠ as NF, so 3♣ is just natural but stronger than 2♣, since there is no shape I can have that can't just bid naturally over 1NT.
2c is natural non forcing and I wont even say encouraging just merely thinks 1n is a poor idea (especially
vul at imps) Axxx x Axxx Axxx is a good example. The range here is quite wide and that is because if 3N
is not a good contract 5 of a minor is a long way off after this start and will need a big fit from p. If p has a big
fit they will jump somewhere (hopefully)
3c also nf is natural and highly encouraging AKxx void AQJxx Kxxx essentially a strong nt with short hearts
should have good reason to think 3n is ok if p has a couple of heart stops and a side card.
Whenever p makes a bid that sounds impossible think about the bidding and try to imagine what they are
trying to tell you. The best partnerships know but just exercising your judgement shows you are trying to
be a good partner.
I also use this jump (3h above) but for me it shows a huge club fit and the heart A. With this hand I would
jump to 3s to show the huge trump fit deny the heart A and show a side spade control. This is also based on
the principle that 3s cannot be an actual invite for spades many other jumps work as well for the same
reason while 3d is natural 4d is similar to 3h/3s showing huge club fit denying heart A or spade
control. The key is recognizing impossible bids from the previous bidding.