1) You are the first and you have
AKQJ5---108764---KQ---9.
You are vulnerable and the bidding proceeds the following way:
You---------LHO------CHO------------RHO
1 spade-----pass-----2clubs (GF)----pass
2 hearts----pass------3diams (4th)--pass
3 BT--------pass------4 clubs---------pass
???
a) Do you agree with the 3BT bid?
(1 spade---pass---3 clubs is GF with six very good clubs like KQJxxx, AK109xx, AQJ9xxx at minimum in your system.)
2) You have
K---KQ107---Q7---K109652
and the auction was a bit surprising - nobody vulnerable, LHO opened with
4H and that was it. Your partner starts with CQ and the dummy is
....................................AJ43
.........................................2
.............................K1098654
.........................................A
K---KQ107---Q7---K109652
After cashing CA, the opponent plays small diamond from the dummy immediately. Do you intervene with your DQ?
3)
Your are vulnerable, the opponents not, your RHO just started the bidding with 1H and you have
K74-----732-----A1097-----AQ4.
Do you pass or double?

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