A chess opening or simply an opening refers to the initial moves of a chess game.
This is a list of chess openings, organized by the Encyclopaedia of Chess Openings code.
The Oxford Companion to Chess lists 1,327 named openings and variants.
An Open Game (or Double King's Pawn Opening) is a chess opening that begins with the following moves: White has moved the king's pawn two squares and Black has replied in kind.
The following outline is provided as an overview of and topical guide to chess: Chess is a two-player board game played on a chessboard (a square-checkered board with 64 squares arranged in an eight-by-eight grid).