The chapter discusses two-person zero-sum games where players have a limited number of choices. There are two ways to represent these games: normal form and extensive form. The normal form simplifies the game, while the extensive form shows the game's evolution and player interactions. The chapter introduces the normal form and discusses saddle-point equilibria for both pure and mixed strategies. It also presents an extensive form for zero-sum games without chance moves and discusses equilibria for such games. The nature of equilibria for zero-sum games with chance moves is also explored.