RKC in , starting in 4

Bidding diagrams
4   Asking for aces
 4 1 or 4 aces
  4Asking for Q
  4To play
  4NTTo 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