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
History of Skat card held by the soloist. Since this solution was not satisfactory either, and idea by Carl Christian Adam Neefe was adopted whereby an auction was held to determine the soloist and trump suit. By bidding, however, further types of contract other than the basic suit contracts became possible. Early forms of Null and Grand were already being played in the 1840s. The Null was, from the outset, a plain-trick game and basically resembled its modern successor. The predecessor of Grand was called Ace Game ("As-Spiel"); it was the counterpart to Null and also had no trumps. The main difference between