You need to understand all the bidding opportunities you have with the X and the XX bidding cards. The 31 4" x 6" cards in the Doubles & Redoubles deck give you precise information on each.
We've included some sample cards from Doubles & Redoubles to show you how we present the concepts. Unfortunately, these sample cards are as big as we can make them on this website. Just expand the card on your computer or other device to get a closer look.
Here are all the cards you will find in Doubles & Redoubles:
DSI (“Do Something Intelligent”) Double
Takeout Double: Beyond the Basics
Takeout Double: Through What Level?
Takeout Double: Responder Bids
Takeout Double: Responding Not in Competition
Takeout Double: Responding in Competition
Takeout Double: Rebids by Doubler
Support Double & Redouble
D0P1, R0P1 & DEPO
Double/Pass in Two-Club Opener
Redouble/Pass in Jacoby Transfer Auction
Redouble/Pass in Stayman Auction
Rosenkrantz Double or Redouble
Negative Double After No Trump Opening
Double of One No Trump
Double of Three No Trump