RKC in
♠
, starting in 4
♣
Bidding diagrams
4
♣
Asking for aces
4
♦
1 or 4 aces
4
♥
Asking for
♠
Q
4
♠
To play
4NT
To play
4
♥
0 or 3 aces
4
♠
2 aces, no
♠
Q
4NT
2 aces and
♠
Q
5
♣
Some void and odd no of aces
5
♦
Void and even no of aces
5
♥
Void and even no of aces
5
♠
Void in
♣
, and even no of aces