Tennessee Jump Bid, also known as the Tennessee Convention or the Jordan Convention, is a bidding convention used in contract bridge. It is a preemptive bid made by the opening side after the opposing side opens the bidding with their partner's suit. This convention aims to disrupt the opposition's communication and make it difficult for them to find their optimal contract. The Tennessee Jump Bid is employed after the opposing side opens the bidding, typically at the one-level, and the player's partner does not have the opportunity to overall. In this situation, the responder makes a jump bid in a new suit, skipping one or more levels of bidding. This aggressive bid conveys a preemptive nature, signaling a strong hand with a long suit and opening values or more. There are two primary types of Tennessee Jump Bids: 1. Simple Tennessee Jump Bid: This occurs when the responder jumps one level higher than the opponent's opening bid. For example, if the opponents open 1♠, a simple Tennessee Jump Bid would be 3♣ or 3♦, showing a long suit in one of these lower-ranking suits. This bid puts pressure on the opposition to find their optimal contract or take a riskier bid. 2. Tennessee Two-Step Jump Bid: This variation involves a more significant bid, skipping two levels of bidding. For instance, if the opponents open 1♠, a Tennessee Two-Step Jump Bid would be 4♣ or 4♦. This bid indicates an even stronger hand with an even longer suit, making it even more challenging for the opposing side to find their contract. The Tennessee Jump Bid is a popular convention among experienced bridge players, as it allows the opener's partner to communicate valuable information regarding their hand's distribution and strength. However, it requires good judgment and partnership understanding using this bid effectively. Overall, the Tennessee Jump Bid is a preemptive tool used in contract bridge to interfere with the opposition's bidding process and increase the chances of a successful defensive play. It offers the responder an opportunity to convey a strong hand with a long suit, allowing the partnership to gain an advantageous position in the bidding and subsequent play of the hand.