A game in which exchanges have opened files and diagonals, and there are few pawns in the center, as opposed to a closed game.

A position where there are few centre pawns, and many open attacking lines. A lead in development is crucial to exploiting an open position.

Any opening that begins with the moves 1.e4 e5. Examples of Open Games include the Ruy Lopez, the Giuoco Piano, the Danish Gambit, and many others. The Open Game is also referred to as a Double King's Pawn Opening or Double King's Pawn Game.