A situation that you may face in the endgame is when you have a rook and your king against your opponent’s king. In such a case, you will be able to force checkmate with the correct king-rook coordination. Read on to learn how!
1. Cut off your opponent’s king into a box
Move your rook so that the opponent's king is restricted to one quadrant of the board. Do not deliver checks yet.
2. Move your king to support your rook
Move your king to help restrict the enemy king and protect your rook. Your king will play a larger role in this checkmate pattern than a king and queen vs king pattern as the opposing king can threaten your rook.
3. Close the box to restrict the king to a single rank/file
When it is safe to do so, your rook should be moved closer to the enemy king. This makes the “box” that you created in step one smaller. The goal is to get the king stuck on the back of the board.
4. Use waiting moves to gain king opposition
In order to deliver checkmate, the kings must be facing each other AND it must be your turn. If the opposing king keeps moving out of the way, “waste” a move by sliding your rook one square over (make sure you avoid stalemate). This will force the opposing king to move in front of yours.
5. Deliver checkmate along the edge of the board
Finally, when the opposing king is blocked by your king, deliver checkmate along the back file/rank or by moving your rook onto the back rank/file. (make sure it can’t be captured though)