Aspro convention

Aspro[1] is a contract bridge bidding convention devised by Terence Reese[2] as a British variant on the Astro convention[3] to intervene over a 1NT opening bid.

Not to be confused with Astro convention or Asptro convention.
Main articles: Contract bridge, Bidding system, Bridge convention, and Glossary of contract bridge terms

Like Astro, Aspro is initiated by a 2-level overcall in a minor suit when the overcaller or intervenor[4] holds an unbalanced hand with at least nine cards in two suits (i.e. 5 in one and 4 in the other), at least one of which is a major.

  • 2♣ shows hearts and another suit, and
  • 2♦ shows spades and a minor suit.

Subsequent bidding

The foregoing includes the possibility that the 2♣ overcaller holds both majors. Using Aspro with five spades and four or five hearts, the 2♣ bid is followed by 2♠ over partner's 2♦ or 2♥; with four spades and five hearts, one rebids 2♥ over partner's 2♦.[3]

See also

References
  1. The name is borrowed from a popular British brand of aspirin.
  2. Manley, Brent; Horton, Mark; Greenberg-Yarbro, Tracey; Rigal, Barry, eds. (2011). The Official Encyclopedia of Bridge (7th ed.). Horn Lake, MS: American Contract Bridge League. p. 267. ISBN 978-0-939460-99-1.
  3. Crowhurst, Eric (1980). Acol in Competition. London: Pelham Books. p. 290. ISBN 0-7207-1273-4.
  4. In the description of competitive bidding, players are referred to as either the Opener (the first to make a bid, the Intervenor (the opponent who makes his side’s first bid), the Responder (partner of the Opener) or the Advancer (partner of the Intervenor).
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