Assertion: checkmate's piece | /r/HasProperty | rook
Facets:
value: usually
type: DEGREE
Source sentences:
text: In Boden's mate two attacking bishops on criss-crossing diagonals deliver mate to a king obstructed by friendly pieces, usually a rook and a pawn.
text: In Boden's mate two attacking bishops on criss-crossing diagonals deliver mate to a king obstructed by friendly pieces, usually a rook and a pawn.
text: It is possible to execute a checkmate against a lone king even if you have just your king and one other piece, but that piece must be a rook or a queen.
text: This can involve capturing the checking piece; interposing a piece between the checking piece and the king (which is possible only if the attacking piece is a queen, rook, or bishop and there is a square between it and the king); or moving the king to a square where it is not under attack.
text: In a discovered check, a piece moves out of the line of attack by another piece so that this other piece (which can be a queen, rook, or bishop) is then checking the opponent's king.
text: In a discovered check, a piece moves out of the line of attack by another piece so that this other piece (which can be a queen, rook, or bishop) is then checking the opponent's king.