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- Astro_convention abstract "Astro is a contract bridge bidding convention used to intervene over an opponent's one notrump (1NT) opening bid. The name is derived from the initials of the surnames of its inventors - Paul Allinger, Roger Stern and Lawrence Rosler.Astro employs a 2-level overcall in a minor suit when intervenor holds an unbalanced hand with at least nine cards in two suits, at least one of which is a major; hand strength should be unsuitable for, or not strong enough for a penalty double, typically no more than 15 points. The minor suit overcalls are artificial and carry the following meanings: 2♣ shows at least 5-4 or 4-5 length in hearts and a minor suit, and2♦ shows at least 5-4 or 4-5 length in spades and another suit.When playing Astro but not holding the prescribed two-suited hand, the following calls are available over the 1NT opening by the opponents:an overcall of 2♥ or 2♠ is natural showing a single-suited handDouble is for penalties↑ ↑ ↑ ↑".
- Astro_convention wikiPageID "31232003".
- Astro_convention wikiPageRevisionID "606155597".
- Astro_convention hasPhotoCollection Astro_convention.
- Astro_convention subject Category:Bridge_conventions.
- Astro_convention type Abstraction100002137.
- Astro_convention type BridgeConventions.
- Astro_convention type Convention108309086.
- Astro_convention type Gathering107975026.
- Astro_convention type Group100031264.
- Astro_convention type Meeting108307589.
- Astro_convention type SocialGroup107950920.
- Astro_convention comment "Astro is a contract bridge bidding convention used to intervene over an opponent's one notrump (1NT) opening bid.".
- Astro_convention label "Astro convention".
- Astro_convention sameAs m.0gj94c0.
- Astro_convention sameAs Q4811524.
- Astro_convention sameAs Q4811524.
- Astro_convention sameAs Astro_convention.
- Astro_convention wasDerivedFrom Astro_convention?oldid=606155597.
- Astro_convention isPrimaryTopicOf Astro_convention.