Week 3: Back-rank checkmate

Beginner course · lesson plan for a 60-minute live group class · for the coach

Lesson plan · Worksheet · Answer key · 12-week syllabus

Learning objective

Students can spot a king trapped behind its own pawns, give back-rank checkmate with a rook or queen, and know how to protect their own king (a free square, or a guard on the back row).

Before class (under 10 minutes)

Prerequisites: Weeks 1–2: moves, captures, check and checkmate.

Class plan, minute by minute

TimeWhat happens
0–5 minWarm-up
Quick question: “What is checkmate?” Then one promotion puzzle on the shared board.
5–20 minShared board: the back rank
Load "Week 3 demonstration": the mate, then why it fails when the king has a free square (h6 played), then the danger to your own king.
20–35 minPuzzles on their own boards
Puzzles → "Week 3 practice": six back-rank mates for White and Black. Mixed-level group: "Week 3 all levels" (ends with mates in 2).
35–52 minPlay each other
Pair students and start. Challenge: before every move, check your own back row.
52–60 minReview
Review questions below. Preview next week: more checkmate patterns.

Shared-board demonstration

In the lesson app: Lesson library → Week 3 demonstration: Back-rank checkmate.

  1. ♚︎♟︎♟︎♟︎♙︎♙︎♙︎♖︎♔︎a8b7c6d5e4f3g2h1

    White to move: checkmate in 1.

    The pawns on f7, g7 and h7 block the king’s escape. The rook attacks the whole back row.

    Answer: Rd8#. The black king is trapped behind its own pawns.

  2. ♚︎♟︎♟︎♟︎♙︎♙︎♙︎♖︎♔︎a8b7c6d5e4f3g2h1

    Here Rd8+ is only check: the king escapes to h7.

    Black played h6 earlier. That free square (“luft”) saves the king. Play Rd8+ Kh7 to show it.

  3. ♜︎♚︎♟︎♟︎♟︎♙︎♙︎♙︎♖︎♔︎a8b7c6d5e4f3g2h1

    White’s own king is in danger too: for example, if the rook goes to d2, Black plays Re1 checkmate.

    Move the rook to d2 and let a student find ...Re1#. Then undo and show h3 to make a free square.

Puzzles on every student’s own board

In class: Puzzles → choose the set → Start puzzles. Each student solves on their own board while you watch every board live. A wrong move gets a reason or a hint (for example “look for a check”), and any checkmate counts as solved.

Check for understanding

  1. Why is the king in a back-rank mate trapped? Answer: Its own pawns block the squares in front of it.
  2. Name one way to protect your own king from it. Answer: Move a pawn in front of the king (for example h3) to make a free square, or keep a rook or queen guarding the back row.
  3. Can a queen give back-rank mate? Answer: Yes, a queen or a rook.

Help for beginners

Ask “Where can the king go?” before each puzzle. Students who are stuck can try every check; the board says when a check is not checkmate.

For stronger students

"Week 3 harder": mates in 2, where a piece is given away first.

Every position, answer and hint on this page is checked move by move with chess.js before it is published. Real-game puzzles come from the Lichess puzzle database (CC0).