In chess, "queenside" refers to the half of the board that is on the left side from the perspective of the player controlling the white pieces. This area includes the squares from a1 to d1 for white and a8 to d8 for black. The queenside is where the queen starts the game, along with the rook and bishop. The term is often used in contrast to "kingside," which is the right side of the board. Strategies involving the queenside can include pawn advances, piece development, and attacks on the opponent's position. Understanding queenside dynamics is essential for effective chess play.