• Lesson 22 of 32
  • Checkmate patterns
  • 4 min

How to Checkmate With a King and Rook

King and rook against a lone king is a win from any position where the rook is safe, and the method is worth knowing by heart. It comes up in real games, it takes longer than mate with a queen, and it teaches you how kings fight each other.

Step 1 of 5

  1. The rook builds a box

    The rook on a6 holds the whole 6th rank, so the black king is shut in the top two ranks: a box. A rook can't mate on its own, though. Your king has to come up and take squares from the black king, and when the two kings face each other, the rook checks along the edge.

  2. The final picture

    This is how the mate looks. The kings face each other on the d-file with one square between them, so your king on d6 covers c7, d7 and e7. A rook check along the back rank now leaves the black king nowhere to go.

    Your move

    Checkmate in one move.

  3. The waiting move

    The black king on d8 has one free square, c8: your rook holds the e-file, and your king covers c7 and d7. If it were Black's move, the king would have to step to c8, straight in front of your king, and Re8 would be mate. So make a move that changes nothing: slide the rook along the e-file, out of the king's reach. That waiting move passes the turn to Black.

    Your move

    Checkmate in two moves.

  4. Now against the bot

    Back to the box from the start of the lesson. Drive the king to the back rank, follow it with your king, and mate it on the edge. When the kings don't line up, use a waiting move.

    Your move

    Checkmate the black king. The bot will defend.

  5. From the middle of the board

    Now the whole method, from the middle of the board. Cut the king off with the rook, bring your own king up to face it, and shrink the box a rank or a file at a time until the black king stands on the edge.

    Your move

    Checkmate the black king. The bot will defend.

What you learned

  • The rook builds a box; your king does the rest. A rook can't mate alone.
  • Mate usually comes when the kings face each other and the rook checks along the edge.
  • If the kings don't line up, a waiting move with the rook makes the defender step into place.
  • Never leave the rook where the king can take it, and never leave the king without a move.

In this course

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