Competitive Doubles [Tucker]

'Double' can be a very flexible call in your bidding arsenal. Learn about the most useful and widely used conventions in the great book.

Doubles described in this book:
  - Takeout Doubles
  - Negative Doubles
  - Responsive Doubles
  - Snapdragon Doubles
  - Balancing Doubles
  - Re-opening Doubles
  - Support Doubles
  - Maximal Doubles

Plus lots of practice hands and section on common misconceptions about doubles.