Serious 3NT Serious 3NT 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: 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
Auction bridge "The Times" (London), January 16, 1905, signed by Oswald Crawford, describes auction bridge as first played in 1904, while a book by "John Doe" (F. Roe), published in Alláhábád, India, in 1889, puts forward auction bridge as an invention of three members of the Indian Civil Service stationed at an isolated community, designed a three-handed form of bridge to compensate the lack of a fourth player. Their key contribution was the concept of competitive bidding for the declaration. The bidding, play and laws are similar to contract bridge. The dealer opens the bidding and must declare to win at least