Bidding practice
The most widely-played natural bidding system in North America. 5-card majors, strong 1NT (15-17), strong 2C, weak twos, Stayman, and Jacoby transfers.
North is the dealer. No one has bid yet. What is North’s opening call?
North
♠
A K 10 9 5
♥
K 5 4
♦
8 7
♣
K 6 3
HCP: 13
Shape: 5-3-2-3
Balanced: yes
Planning
The Bergen raise gives opener very good information regarding shape and point value of partners hand.