RKCB

4NT, asking about Aces and the King of trumps    ➲

Exclusive blackwood (Voidwood - VW)    ➲

Asking about the Queen of trumps    ➲

5NT, asking about Kings    ➲

Asking about 3^rd control  (Q or xx) in side suit    ➲

4NT after 1NT, 2NT, 2♣/NT    ➲

After partner opens with a preempt on level 3 (Poor Man’s Blackwood - PMBW)    ➲

After intervention    ➲