A Counter-Gambit is a strategic move in chess where a player offers a sacrifice in response to an opponent's gambit. This tactic aims to regain the initiative and create counterplay, often leading to complex positions. By accepting the challenge, the player can disrupt their opponent's plans and seize control of the game. In a typical scenario, after an opponent plays a gambit, such as the Evans Gambit, the counter-gambit player might sacrifice a pawn or piece to create threats. This can lead to dynamic and unpredictable positions, making the game more exciting and challenging for both players.