What is Rook?
A rook slides any number of empty squares along a rank or file and captures the first enemy piece on that line. Rooks belong on open files. Castling usually connects them.
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How do you get Rook?
Each side starts with two rooks, on a1 and h1 or a8 and h8.
How do you use Rook?
After castling, put a rook on a file with no pawns of your own. Two rooks on the seventh rank, or a rook on the back rank, are common puzzle finishes.
