Australian Asking Bid
Used to investigate the quality of partner's trump holding after a suit has been agreed. After agreeing upon a suit, partner may
bid the cheapest level of notrump available to make the inquiry. Responder then bids in steps as follows
Cheapest level of trump = neither the queen nor king of trumps
1st step = queen
2nd step = king
3rd step = king and extra length
4th step = king and queen
5th step = king and queen and extra length
IMPORTANT NOTE: The trump suit is not counted as a step (you must skip over it when counting).
1S pass 2C pass
2H pass 3S pass
3NT! pass 4NT! pass
The 3NT bid was the cheapest notrump available, so it was the asking bid.
The 4NT bid was the FOURTH step (remember, don't count the spade as a step), showing the king and queen of trumps.