RKC in
♠
, starting in 4
♥
Bidding diagrams
4
♥
Asking for aces
4
♠
1 or 4 aces
6
♠
To play
7
♠
To play
4NT
0 or 3 aces
6
♣
To play
6
♠
To play
7
♠
To play
5
♣
2 aces, no
♠
Q
5
♦
2 aces and
♠
Q