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Asptro convention

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Asptro is a contract bridge bidding convention used to intervene over a 1NT opening bid.[1] Its methodology and hence its designation is a combination of two similar conventions – Aspro and Astro.

  • 2 shows at least 5-4 either way round in hearts, the anchor, and a minor suit. Exceptionally the intervenor holds hearts and spades with preference for spades.
  • 2 shows at least 5-4 either way round in spades, the anchor, and another suit. If the other suit is hearts, there is preference for hearts.
  • 2 and 2 are natural.

Partner can bid two of the anchor suit, 2M, expecting to play that contract (sign off). 2 is a non-forcing enquiry, if available, and 2NT is a forcing enquiry. Other replies are natural. Responder can also pass with 6+ length in the bid minor. (You cannot expect support from partner but it might be the least evil).

After a 2 reply, the 2 intervenor passes with five diamonds or bids the 5 card suit, always the unknown one with 5-5.

After a 2NT reply, the intervenor routinely bids the unknown suit. Both the anchor and the unknown major imply both majors with preference for the new one. Thus 3 and 3 may be refined, such as by a strength difference with 3 stronger.

See also

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References

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  1. ^ 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.