Worksheet: Ladder Mate

Topic: endgame | Level: 3

Use two heavy pieces like a sliding wall to squeeze the enemy king rank by rank until checkmate.

Why This Matters

A ladder mate works best when one rook is the wall and the other rook becomes the next wall.
Do not rush both pieces forward at once. One heavy piece must always keep the king trapped.
If the king reaches the edge and only one square is left, the other rook often gives the final mate.

Practice Tasks

Draw a “wall” on a board diagram and explain how a rook can stop a king from crossing it.
In the mini-game, which rook is the wall and which rook is the moving rook right now?
Solve each ladder-mate practice position and write which rank or file became smaller after White’s move.

Board Evolution (One Step per Board)

Step 0: Starting Position

Step 1: Rg6

Step 2: Kf8

Step 3: Rb6

Step 4: Kg8

Step 5: Rb7

Step 6: Kh8

Step 7: Ra8#

Practice Positions

Find each move on paper, then check the Answer Key at the end.

Practice 1

White to move. Find checkmate in one.

Practice 2

Start the ladder. Move one rook to make a wall that keeps the king from coming down the board.

Practice 3

The king is boxed in near the back rank. Slide the other rook so the box gets even smaller.

Practice 4

Finish the ladder technique from here. Find White’s forcing sequence all the way to mate.

Mini-Game

Play this with a partner. White should keep shrinking the king’s box with the rooks; Black tries to notice when one rook must stay as the wall while the other rook moves.

Answer Key

A rook controls every square along its rank and file, so it can draw a wall the king may not cross.
Answers vary by the position reached, but one rook must keep the king boxed while the other rook slides closer.
Practice 1: rank 6 becomes the wall. Practice 2: the box narrows again. Practice 3: Rb7 then Ra8 finishes the mate.

Practice Position Solutions

Practice 1: Rg8# — The rook on a7 already covers the whole 7th rank, so the king cannot step forward. Rg8 delivers check along the 8th rank, and with rank 7 blocked, the king has nowhere left to go.
Practice 2: Rg6 — Rg6 builds a horizontal wall on rank 6. The black king is still safe for the moment, but it has less and less room each turn.
Practice 3: Rb6 — The rook from a6/b6 takes over the next wall so the rook on g6 can stay ready for the finishing ladder steps.
Practice 4: Rb7 Kh8 Ra8# — Rb7 leaves the king only one square. After Kh8, Ra8 is the final rung of the ladder and checkmates.