Rosencrantz Double: Bridge Bidding Convention

BridgeHands

Rosenkranz Double - A Double by advancer showing trump support and honors. For instance, in the auction:

(1D) - 1S - (2D) - ?,

Advancer's bids include:

Double	Minimum raise with 3+ trumps, including an Ace, King, or Queen in overcaller's suit
2S	Minimum raise with 3+ trumps, denies an Ace, King, or Queen of overcaller's suit
3D	Limit raise or better, denies an Ace, King, or Queen of overcaller's suit
3S	Preemptive raise