Asking for Aces : 5 - 8
5             Bidding : 1♦ - 2♦ - 4♦* - 4♠# - 6♦
Opener
A K 5 2
8
A K 8 6
K Q 9 7
  Responder
7 4
A 10 7
Q 9 5 4 3 2
8 6

* With 19 HCP and only 4 losers Opener must ask for Aces even with Responders Minimum response hand. And indeed Responder does have 1 Ace.


6             Bidding : 1♦ - 3♠# - 4♦ - 4♠ - 6♦
Opener
8 5 3 2
A Q
A Q 8 5
K J 10
  Responder
7
K 4 2
K J 7 4 2
A 7 6 3

* Responder's singleton in Spades is just what Opener needs to push on to Slam.
(With Opener's Club and Spade holdings switched Opener would have bid 3NT, to play !)


7             Bidding : 1♣ - 3♣ - 4♣* - 4♠ - 6♣
Opener
A K 5
8
K J 9 7
A Q 8 5 3
  Responder
7 4 2
A 10 7
A 6
K J 10 9 4

* Responder is showing 2 Aces after Opener's 4♣ enquiry.


8             Bidding : 1♦ - (DBL) - 2♦ - (2♠) - 4♦ - (4♠) - Pass* - 6♦
Opener
3
6
A K 10 9 6 4 2
A Q J 10
  Responder
A 4
7 5 3
J 8 7 5
K 9 7 3

When the Opponents interfere use DOPI :

  DBL = No Ace   Pass = 1 Ace

* Responder's Pass shows 1 Ace.


© 2013 Michael Furstner