What a learner can do afterwards
- Can explain Simple checkmates
The lesson
Checkmate happens when a king is in check and there is no way out. The king cannot move to safety, the check cannot be blocked, and the attacking piece cannot be taken. That ends the game.
A back-rank mate uses a rook or queen along the king's own back row. The king is trapped because its own pawns block the squares in front of it.
Two rooks can mate a lone king together. One rook checks along a row while the other guards the next row, so the king is pushed to the edge step by step. People call it the ladder.
To finish a mate you take away every escape square. The enemy king should have nowhere left to go.
Set up a king on its back row with pawns in front, then bring a rook onto that row. Watch how the king has no square to run to.
Checkmate is a check with no escape, and two rooks or a back-rank rook can trap the king.
Watch it
Where it sits
This opens up
Nothing builds on it yet.
8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.