Brozel
Brozel is a method for intervening against an opposing 1NT opening bid. It features the following calls:
- Double ? shows any single suit; advancer bids 2♣, after which intervenor corrects to his actual suit (or passes with clubs). This was originally played as requiring either a solid suit or a very good suit and an entry, leaving advancer the opportunity to pass with a couple of side-suit stoppers, though many partnerships now allow a weaker suit.
- 2♣ ? shows both minor suits
- 2♦ ? shows both major suits
- 2♥ or 2♠ ? shows the bid major and an unspecified minor suit
The convention is named loosely after its creator, Bernard Zeller.
