Chance cards are special cards used in board games, most notably in the game of Monopoly. Players draw these cards when they land on specific spaces, and they can have various effects, such as gaining or losing money, moving to different locations, or facing unexpected events. These cards add an element of surprise and strategy to the game, as players must adapt to the outcomes. The effects of chance cards can significantly influence the game's progress, making them a key component of gameplay and enhancing the overall experience for players.