Source: http://www.dorseysbridge.com/
Purpose of combined Bergen raises
- To get to the correct level quickly
- To make it easy t0 make the best judgments
- Bergen raises follow the Law of Total Tricks
Combined Bergen raises
1 of a Major
3
shows 4 trumps with 7-12 points.

If opener wants to know how strong, he will bid 3
asking how strong.

With 7-9 responder will bid 3
.

With 10-12 responder will bid 3

If responder shows 7-9 points and
If opener has no interest in game, he corrects at the 3 level.
If he wants to play game he bids it.
If responder shows 10-12
Opener bids game.
Or if slam a prospect:
Cuebid.
Ask for controls.
1 of a Major
3
shows 3 trumps and 10-12.

2 of major shows 5-9 and 1NT forcing may or may not be used with 3 trumps.
3 of major shows 4 trumps and is weak.
4
shows at least 4 card support and 16+ points.

4
shows 5 card support in the major with 1 1/2 tricks outside of trumps.

4 of major is weak with 5+ trumps.