Muiderberg (English, name)
expansion: Muiderberg
Senses:
topics: bridge
games
glosses: A bidding convention, a two-level preemptive opening based on a two-suiter with precisely a five-card major and a minor suit (four-card or longer). The 2♥ opening denotes five hearts and an unknown minor suit, whilst 2♠ denotes five spades and an unknown minor suit.
Forms: