What is Opening System?

An Opening System in chess refers to a specific sequence of moves in the early stage of the game that adheres to a set of strategic principles or guidelines. These series of moves are designed to secure a solid position on the board, control key squares, and allow for the proper development of pieces. The term ‘system’ indicates that it is more flexible than a specific ‘opening move’ or 'opening sequence' and it can accommodate various responses from the opponent.