0 in the game of chess, the side of the board where your queen is at the start of the game
1 on the side of the board where someone's queen starts in the game of chess:
His queenside weakness was disastrous.
She grabbed a couple of queenside pawns and refused to return them.
He wasted a lot of time by moving his queenside minor pieces backwards and forwards.
Black will aim for a diversion on the queenside via the semi-open c-file, or strike in the centre.
Black can exploit the weak squares on the queenside via 17... c4.
White probes black's defences on the kingside, the queenside and ultimately in the centre, forcing a series of weaknesses that spell disaster.
A player may castle either kingside (0-0) or queenside (0-0-0).
A square on the queenside is designated by its file letter and then its rank letter.
