1. Placement of a rook or queen on a rank or file, or a bishop or queen on a diagonal, to exert control over it.
2. Placement of a piece safely on a square to exert pressure from it.
1. Placement of a rook or queen on a rank or file, or a bishop or queen on a diagonal, to exert control over it.
2. Placement of a piece safely on a square to exert pressure from it.
English glossary of chess terms. Английский глоссарий шахматных терминов. 2012