E-book 3

Sequences accompanying the double check back.

Take a look at what’s included:

1. Theory: Sequence 1♣,♦ – 1♥ – 1NT – 2♠ page 1.
     There are hands that after strong check-back 2♦ will not be easy to describe.
2. Examples.
3. Theory: 1X – 1M – 1NT – 2NT.
4. Examples.
5. Bidding Challenge – 20 training hands.