Serious 3NT

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Main articles: Contract bridge, Bidding system, Bridge convention, and Glossary of contract bridge terms

Serious 3NT is a contract bridge bidding convention. It is used in game-forcing auctions where a major suit has been agreed upon.

1♠–2♣ if using 2/1 Game Forcing or 2♠–3♠ (Agreeing spades)

The next bid indicates suitability for slam:

3NT: strong (Serious 3NT)
4♣/4♦/4♥: cuebid, but not strong (non-serious).
4♠: truly minimum.

Since Spades are the agreed trump suit, Three No Trump is not usually the best contract. Using Serious Three No Trump, a bid of Three No Trump says "I am Serious about slam", i.e. "I have a good hand". Bypassing bidding Three No Trump says "I am not Serious about Slam". Examples shown in the above auction.

If one player bypasses 3NT with a Cuebid (and is 'not serious'), then a Cuebid by partner indicates that he is serious. Note that in the example auction above, if the strong hand is next (after the 3♠ bid, he can differentiate between a strong hand, a weak hand that has a control (in case partner is strong) or a minimum hand.

Serious Three No Trump was devised by and named by Eric Rodwell.^[1]

Frivolous 3NT

Some partnerships reverse the meaning of 3NT in this situation. A weak hand bids 3NT to indicate no additional strength. This has the effect that a weak hand will not pinpoint a control for the defense.

References

↑ Various articles in the American Contract Bridge League Bulletin (magazine). Convention cards submitted to the World Bridge Federation.

Contract bridge articles

Overview

Introduction	Bridge scoring Contract bridge Duplicate bridge Glossary of contract bridge terms Rubber bridge

See also	Auction bridge Bridge ethics Bridge maxims Bridge Murder case Bridge whist Bridgette The British Rule Chicago Computer bridge Contract bridge diagram Duplicate bridge movements Goulash History of contract bridge Laws of Duplicate Bridge Masterpoints Minibridge Neuberg formula Screen Singaporean bridge Suit Traveling scoreslip Vugraph

Bidding

Introduction	Bidding system Bridge convention Hand evaluation

Systems	List of bidding systems 2/1 game forcing Acol Bidding system Blue Club Boring Club Bridge Base Basic Bridge World Standard Canapé (bridge) Carrot Club EHAA Fantunes Highly unusual method Kaplan-Sheinwold Little Major Moscito OK bridge 2/1 Polish Club Precision Club Roman Club Romex system Säffle Spade Standard American Strong club system

Conventions	Aspro convention Asptro convention Astro convention Baron convention Bergen raises Blackout convention Blackwood convention Brozel Byzantine Blackwood convention Cappelletti convention Carrot 1NT Carrot 4NT Comfy Canapé Convention card Copenhagen convention (bridge) CRASH convention DONT Drury convention Ekren convention Fishbein convention Fit showing jump bid Flannery Forcing notrump Fourth suit forcing Fragment bid Gardener 1NT Gerber convention Ghestem Grand slam force Hello convention Jacoby 2NT Jacoby transfer Kamikaze 1NT Landy Last Train Leaping Michaels Lebensohl Lightner double Lionel convention List of defenses to 1NT Meckwell convention Meyerson convention Michaels cuebid Mini-Roman 2 Diamond Mohan convention Muiderberg convention Multi 2 diamonds Namyats Negative double Negative free bid New minor forcing Norman four notrump Ogust convention Pass-or-correct bid Raptor convention Relay bid Rosenkranz double/redouble Rubens advances Rubensohl San Francisco convention Serious 3NT Slam-seeking conventions Snapdragon double Splinter bid Stayman convention Strong Notrump After Passing (SNAP) Strong two bid Strong two clubs Suction convention Transfer Walsh Unusual notrump Unusual vs. unusual Walsh convention Woolsey convention XY Notrump convention

See also	Balanced hand Balancing (bridge) Bidding box Board (bridge) Brown sticker Cue bid Five-card majors Forcing bid Forcing pass Gambling 3NT Game try Honor point count Inverted minors Law of total tricks Losing-Trick Count Major suit Minor suit Optimum contract and par contract Overcall Preempt Prepared opening bid Principle of fast arrival Psychic bid Quantitative no trump bids Reverse (bridge) Sacrifice (bridge) Shooting (bridge) Single suiter Strong pass Support double Takeout double Three suiter Two suiter Useful space principle Void (cards) Weak two bid Zar Points

Card Play

Introduction	List of play techniques (bridge) Caddy (bridge) Card reading (bridge) Duck (bridge) Endplay Entry (cards) Finesse Hold up (bridge) Ruff (cards) Safety play

Declarer play	Coups: Alcatraz coup Bath coup Belladonna coup Coup (bridge) Coup en passant Crocodile coup Deschapelles coup Devil's coup Merrimac coup Morton's fork coup Scissors coup Trump coup Vienna coup Squeezes: Backwash squeeze Cannibal squeeze Clash squeeze Compound squeeze Criss-cross squeeze Double squeeze Entry squeeze Entry-shifting squeeze Guard squeeze Knockout squeeze Non-simultaneous double squeeze Progressive squeeze Pseudo-squeeze Saturated squeeze Simple squeeze Simultaneous double squeeze Single-suit squeeze Squeeze play (bridge) Stepping-stone squeeze Strip squeeze Triple squeeze Trump squeeze Vice squeeze Winkle squeeze Suit combinations: Suit combination Suit combination – J missing Suit combination – 10 missing Suit combinations – K10 missing

Defender play	Journalist leads Opening lead Rule of 10-12 Rule of 11 Rusinow leads Signal (bridge) Smith signal

See also	Avoidance play Beer card Bridge probabilities Forcing defense Grosvenor gambit Loser on loser Percentage play Pin (bridge) Principle of restricted choice Shooting (bridge) Smother play Tempo (bridge) Trump promotion Uppercut (bridge) Vacant Places

People and organizations

Administrators, players and writers	List of contract bridge people List of nationality transfers in sport A Terje Aa Pierre Albarran Martin Andresen Walter Avarelli B Cezary Balicki Hermine Baron Henry Beasley Giorgio Belladonna Richard Belton Albert Benjamin Marty A. Bergen David Berkowitz Huub Bertens David Bird Easley Blackwood, Sr. Blue Team Norberto Bocchi Janet de Botton Tim Bourke Marcelo Branco Tomas Brenning Raymond Brock John Brown David Bruce Michelle Brunner Walter Buller Wesley Burrowes C Orlando Campos Mike Cappelletti Drew Casen James Cayne Gabriel Chagas Paul Chemla George Coffin Larry N. Cohen Ben Cohen Barry Crane Carol Crawford John R. Crawford Ely Culbertson D Massimo D'Alelio Dallas Aces Hugh Darwen Mike Develin Leslie Dodds Giorgio Duboin Michel Duguet E Billy Eisenberg Joseph Elwell Maria Erhart Bob Etter F Fulvio Fantoni Martin Fleisher Jeremy Flint Pietro Forquet Tony Forrester Robert Frederick Foster Richard Freeman G Nico Gardener Benito Garozzo Piotr Gawryś Pierre Ghestem Eldad Ginossar Fred Gitelman Ramesh Gokhale Bobby Goldman Phil Gordon Fritzi Gordon Charles Goren Audrey Grant Alan C. Greenberg Ari Greenberg Susanna Gross Glenn Grøtheim Ace Gutowsky H Bob Hamman Nicolas Hammond Maurice Harrison-Gray Geir Helgemo Tor Helness Walter Herbert Marc Hodler Mark Horton Carl Hudecek Roy Hughes I J Oswald Jacoby Pierre Jaïs Henry Jones (Cavendish) K Charles Kalme Edwin Kantar Edgar Kaplan Ralph Katz George S. Kaufman Norman Kay Amalya Lyle Kearse Sami Kehela Hugh Kelsey Roy Kerr Ron Klinger Martin de Knijff Putte Kock Kenneth Konstam Janusz Korwin-Mikke Valentin Kovachev Michał Kwiecień L Harry Lampert Emanuel Lasker Lorenzo Lauria Michael Lawrence Peter Lee Linda Lee James Lemon Bobby Levin Irina Levitina Clyde E. Love Paul Lukacs M Iain Macleod Zia Mahmood Ronald Mansbridge Rixi Markus Jack Marx Jeff Meckstroth Adam Meredith Marshall Miles Victor Mollo Albert Hodges Morehead Bauke Muller Eric Murray N Claudio Nunes O Jack Olsen Jaime Ortiz-Patino Aileen Osofsky Géza Ottlik P Camillo Pabis Ticci Richard Pavlicek Jordanis Pavlides Leonard Pennario Carl'Alberto Perroux Hubert Phillips Gary Pomerantz Julian Pottage R Prabhakar Tony Priday Tommy Prothro Jacek Pszczoła Q R Terence Reese Doris Rhodes Andrew Robson Eric Rodwell Bill Root Eunice Rosen William Rosen Michael Rosenberg George Rosenkranz Alvin Roth Jeff Rubens Ron Rubin S Boris Schapiro Howard Schenken Peter Schneider A. J. Sefi Martin Seligman Tim Seres Omar Sharif Alfred Sheinwold Shen Chun-shan Jaggy Shivdasani S. J. Simon P. Hal Sims Helen Sobel Smith Nicola Smith Marc Smith Tobi Sokolow Paul Soloway Alan Sontag Nathan B. Spingold Samuel Stayman Paul Stern Ralph Swimer Peter Swinnerton-Dyer T Tom Townsend Roger Trézel Dorothy Hayden Truscott Alan Truscott U V Harold Stirling Vanderbilt Alfredo Versace Bep Vriend W Louis H. Watson C. C. Wei Steve Weinstein Roy Welland Berry Westra Charles Wigoder Bobby Wolff Kit Woolsey Milton Work X Y Z Richard Zeckhauser Jack Zhao Adam Żmudziński

Clubs	Bridge Club Brașov Galatasaray Bridge Team Melville Bridge Club Portland Club (London) Young Chelsea Bridge Club

Governing bodies	American Bridge Association American Contract Bridge League Austrian Bridge Federation Brazilian Bridge Federation Canadian Bridge Federation Dutch Bridge Federation English Bridge Union European Bridge League International Mind Sports Association Norwegian Bridge Federation World Bridge Federation United States Bridge Federation

Championships

Introduction	List of bridge competitions and awards

World	Bermuda Bowl Bridge at the 2008 World Mind Sports Games Bridge at the 2012 World Mind Sports Games Cavendish Invitational McConnell Cup Rosenblum Cup Senior Bowl (bridge) Triple crown of bridge Venice Cup World Bridge Championships World IMP Pairs Championship World Junior Pairs Championship World Junior Teams Championship World Mind Sports Games World Mixed Pairs Championship World Mixed Teams Championship World Open Pairs Championship World Senior Pairs Championship World Senior Teams Championship World Team Olympiad World Transnational Open Teams Championship World Women Pairs Championship

National and Zonal	Buffett Cup Camrose Trophy Commonwealth Nations Bridge Championships Gold Cup (bridge) North American bridge Championships: ACBL King or Queen of Bridge Blue Ribbon Pairs Bruce LM-5000 Pairs Chicago Mixed Board-a-Match Fall National Open Pairs Fast Open Pairs Fishbein Trophy Goren Trophy Grand National Teams Hilliard Mixed Pairs Jacoby Open Swiss Teams Keohane North American Swiss Teams Lebhar IMP Pairs Leventritt Silver Ribbon Pairs Machlin Women's Swiss Teams Manfield Non-Life Master Pairs Master Individual Mini-Blue Ribbon Pairs Mini-Spingold Mitchell Board-a-Match Teams Mott-Smith Trophy Nail Life Master Open Pairs National 199er Pairs National 49er Pairs National 99er Pairs Non-Life Master Swiss Teams Norman Kay Platinum Pairs North American Bridge Championships North American Pairs Red Ribbon Pairs Reisinger Rockwell Mixed Pairs Roth Open Swiss Teams Senior Knockout Teams Silodor Open Pairs Smith Life Master Women's Pairs Spingold Sternberg Women's Board-a-Match Teams Truscott Senior Swiss Teams Vanderbilt Trophy Von Zedtwitz Life Master Pairs Wagar Women's Knockout Teams Wernher Open Pairs Whitehead Women's Pairs Young LM-1500 Pairs

Resources

Books	List of bridge books 25 Bridge Conventions You Should Know Bridge Squeezes Complete The Cardturner Contract Bridge for Beginners Edwin Kantar bibliography Master Point Press Planning the Play of a Bridge Hand Terence Reese bibliography The Official Encyclopedia of Bridge Tickets to the Devil

Magazines	List of bridge magazines Bridge d'Italia The Bridge World

External links	Bridge Base Basic Bridge Base Inc. OK bridge 2/1

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