List of defenses to 1NT explained

This is a list of defensive conventions used in the game of contract bridge to compete in the bidding after the opponents have opened with a one notrump (1NT) bid.

• ANTI
• Aspro^[1]
• Asptro,^[1] a hybrid of Astro and Aspro
• Astro,^[1] Modified Astro, Pinpoint Astro,
  Grano-Astro, Roth-Stone Astro
• Astrolite
• Becker^[1]
• Bergen over 1NT^[1] (see DONT)
• Blue Club transfers^[1] (see Transfer overcalls)
• Brozel^[1]
• Cansino,^[1] Modified Cansino
• Canape transfers
• Cappelletti,^[1] Modified Cappelletti, Revised Cappelletti
• CDH Buchanan
• CHASM
• Comfy Canapé^[1] or CoCa
• CRASH^[1] (aka CRO)
• Crowhurst convention
• DONT,^[1] Revised DONT
• Exclusion bids^[1] (aka Super Convention)
• Feathertson
• Feel Away Notrump (FAN)
• Feel Oriented Notrump Destroyer (FOND)
• Gates adjunct^[1]
• Grano-Astro^[1] (see Astro)
• Hamilton^[1]
• Hello^[1]
• Kelsey^[1]
• Landy^[1]
• Lionel^[1]
• Maestro Double
• Meckwell
• Meyerson
• Modified Astro^[1] (see Astro)
• Mohan
  • • MONK Mylläri Multi-Landy
• Nilsland
• Pinpoint Astro^[1] (see Astro)
• Pottage,^[1] Revised Pottage
• Power^[1]
• RCO^[1]
• Ripstra^[1]
• Roche convention
• Roth^[1]
• Roth-Stone Astro^[1] (see Astro)
• Sahara convention^[1]
• Scorrchio^[1]
• Sharples convention,^[1] Modified Sharples
• Soap convention^[1]
• Splash convention^[1]
• Suction,^[1] Twerb Suction, Suction Redwood
• Supernatural
• Tizi convention^[1]
• Toss convention^[1]
• Transfer overcalls^[1]
• TRASH
• Uni-club^[1]
• Vroom convention^[1]
• Modified Wallis
• Westwood convention^[1] See also WIND convention
  and WINDA
• WIND convention^[1]
• WINDA^[1]
• WONT^[1]
• Woolsey

Further reading

• Book: Kleinman, Danny . The No Trump Zone . Master Point Press . Toronto . 2004 . 1-894154-70-3. 217 pages.

External links

• Australian Bridge magazine, December 2000, pages 20-21. List of defenses against a 1NT opening (text corrupted, but does provide a listing). Official website
• Bridge Buff website: commentary on the MONK convention.
• Pattaya Bridge Club website: list of defenses against a 1NT opening are briefly reviewed, including a comparison of Cappelletti and Multi-Landy.
• Chris Ryall's website: 1NT defenses.
• David Stevenson's website: 1NT defenses.
• The 1NT Battlefield by Jon Gustafson
• BridgeGuys List of defenses against notrump openings.
• ClaireBridge website: Défenses contre l’ouverture d’1 SA (in English)

Notes and References

1. Defence to 1NT - a survey for the new millenium. Australian Bridge . December 2000. 20–21 . 14 October 2011.