What & Why (09)

Some more What and Why, this time all from a match point session.

1. Match Points Dealer South NS vul.

AQJ3
8
T7532
AK5

You are SOUTH
The bidding has been:

SouthWestNorthEast
1Pass1Pass
1Pass3Pass
?

What do you bid and why?

2. Match Points Dealer N All Vul
You are South and your hand:

86
AK875
T5
QJ95

The bidding has been:
SouthWestNorthEast
--1Pass
1Pass1Pass
2Pass2NTPass
?

What do you bid and Why?

3. Now for a declarer problem. You are West this time and again it is match points. You are Not Vul, against NS Vul. You open 1D, Double from North, 2C (forcing, 10+ HCP and natural) from East, 2S from South, 3D from you, 3S from North, 4D from partner, all pass.

SouthWestNorthEast
-1X2
2334
PassPassPass

J62
A
QJT975
K54
74
9542
AK
AJ982

North leads the SA and then switches to the HQ.

a) do you agree with the 3D bid or would you have done something else and if so, what?

b) do you agree with passing 4D?

c) How will you play this? Please be as specific as you can.