\begin{definition}[Definition:Chess/Piece/Rook]
The '''rook''' File:Chess rlt45.svg can be moved any number of squares in any of the $4$ orthogonal directions: up, down, left or right.
It cannot be moved past a square occupied by another piece.
{{ChessDiagram|
|
|  |  |  |  |  |  |  |  
|  |  |pd|  |  |  |  |  
|  |  |ua|  |  |  |  |   
|la|la|rl|ra|ra|ra|ra|ra
|  |  |da|  |  |  |  |  
|  |  |da|  |  |  |  |  
|  |  |da|  |  |  |  |  
|  |  |da|  |  |  |  |  
|
}}
\end{definition}