List of defenses to 1NT
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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][2]
- Asptro,[1][2] a hybrid of Astro and Aspro
- Astro,[1][2] Modified Astro, Pinpoint Astro,
Grano-Astro, Roth-Stone Astro - Astrolite[1]
- Becker[1][2]
- Bergen over 1NT[2] (see DONT)
- Blue Club transfers[2] (see Transfer overcalls)
- Brozel[1][2]
- Cansino,[1][2] Modified Cansino
- Canape transfers
- Cappelletti,[1][2] Modified Cappelletti, Revised Cappelletti
- CDH Buchanan
- CHASM
- Comfy Canapé[2] or CoCa
- CRASH[2] (aka CRO)
- Crowhurst convention
- DONT,[1][2] Revised DONT
- Exclusion bids[1][2] (aka Super Convention)
- Feathertson
- Feel Away Notrump (FAN)
- Feel Oriented Notrump Destroyer (FOND)
- Gates adjunct[2]
- Grano-Astro[1][2] (see Astro)
- Hamilton[1][2]
- Hello[2]
- Kelsey[2]
- Landy[1][2]
- Lionel[2]
- Maestro Double
- Meckwell
- Meyerson
- Modified Astro[2] (see Astro)
- Mohan
- MONK
- Multi-Landy
- Nilsland
- Pinpoint Astro[2] (see Astro)
- Pottage,[2] Revised Pottage
- Power[2]
- RCO[2]
- Ripstra[1][2]
- Roche convention
- Roth[2]
- Roth-Stone Astro[2] (see Astro)
- Sahara convention[2]
- Scorrchio[2]
- Sharples convention,[2] Modified Sharples
- Soap convention[2]
- Splash convention[2]
- Suction,[1][2] Twerb Suction, Suction Redwood
- Supernatural
- Tizi convention[2]
- Toss convention[2]
- Transfer overcalls[2]
- TRASH
- Uni-club[2]
- Vroom convention[2]
- Modified Wallis
- Westwood convention[2] See also WIND convention
and WINDA - WIND convention[2]
- WINDA[2]
- WONT[2]
- Woolsey[3]