Lesson Plan 12: More Checkmate Patterns & Unit 3 Assessment
Two Rooks, Queen and King, and the Back Rank
Prerequisites
Lessons 1-11
Learning Objectives
- Students will deliver ladder mate with two rooks
- Students will deliver mate with a queen and king against a lone king
- Students will recognise and prevent a back-rank mate
- Students will complete the Unit 3 assessment
Materials Needed
- Chess sets (1 per 2 students)
- Demonstration board
- Unit 3 assessment sheets
- Checkmate Puzzles Worksheet
The Patterns to Teach
- Ladder mate: two rooks take turns cutting the king back, rank by rank, to the edge
- Queen and king: the queen shrinks the box, the king walks up, and the queen delivers mate on the edge
- Never stalemate: before every queen move, ask whether the enemy king still has a square
- Back-rank mate: a king trapped behind its own pawns is mated by a rook or queen on the back rank
- Luft: moving a pawn in front of a castled king makes an escape square and prevents it
Lesson Timeline
5 min
Review & Hook
Recap last week's pattern in one minute. "Today you learn to finish games you are already winning — which is where most points are lost."
12 min
Ladder Mate
- Two rooks and a king against a lone king
- Show the method: one rook cuts the king off, the other checks, the king retreats, repeat
- Warn about the one trap: when the king approaches a rook, move that rook far along the line rather than losing it
- Every pair does it twice, from a different starting square
12 min
Queen and King
- Show the box: each queen move makes the rectangle the king lives in smaller
- Bring the king up — the queen alone cannot do it
- Ask before each move: does the enemy king have a legal move? If not, and it is not check, it is stalemate
- Pairs practise until each has mated twice
8 min
Back Rank
- Set a castled king behind three pawns and bring a rook to the eighth rank
- Ask the class for the defence: a luft square, or a defender on the back rank
- Show the trap of defending with a piece that can be deflected
6 min
Unit 3 Assessment
Students complete the sheet individually.
2 min
Wrap-Up
Ask: "What must you check before every queen move when the opponent has only a king?"
Unit 3 Assessment Contents
- Two positions: mate in one with a rook
- One position: mate in one with a queen, where a second queen move would be stalemate
- One ladder-mate position: show the next two moves
- One back-rank position: find the mate, then find the defence that would have stopped it
- One written question: what is luft, and why make it?
Teacher Tip: Have the class practise the queen mate against you, not against each other, the first time. You will stalemate yourself on purpose once; the lesson that produces is worth ten warnings.
Assessment
- Unit 3 sheet: collected and marked
- Observation: during practice, count how many pairs stalemate and discuss why
- Exit question: "Name the pawn move that prevents a back-rank mate."
Common Mistakes to Address
- Stalemating with queen and king
- Losing a rook in the ladder by leaving it beside the enemy king
- Forgetting to bring the king up in the queen mate
- Making luft at the wrong moment and weakening the king
Differentiation
- Support: Mark the edge ranks with tape so the idea of driving the king to the edge is visible on the board.
- Challenge: Ask for mate with king and rook against king, which is harder than the queen because the rook needs the opposition.