Open Game
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| Moves | 1.e4 e5 | ||||||||||||||||||||||||||||||||||||||||||||
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| ECO | C20–C99 | ||||||||||||||||||||||||||||||||||||||||||||
| Parent | King's Pawn Game | ||||||||||||||||||||||||||||||||||||||||||||
| Synonym(s) | Double King's Pawn Opening Double King's Pawn Game | ||||||||||||||||||||||||||||||||||||||||||||
An Open Game (or Double King's Pawn Opening) is a generic term for a family of chess openings beginning with the moves:
White has moved the king's pawn two squares and Black has replied in kind. The result is an Open Game. Other responses to 1.e4 are termed Semi-Open Games or Single King's Pawn Games.
When written in lowercase, the term "open game" refers to a chess position where ranks, files and diagonals are open, and tending to more tactical gameplay. It is possible that an Open Game may lead to a closed game.