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