King and pawn endgames decide more games than any opening, and they run on a few exact rules rather than guesswork. Master the opposition and the square of the pawn, and you will convert winning endings and save lost ones.
Why these endgames matter
When most pieces are traded, a single extra pawn often decides the game — but only if you know the technique. Two equally strong players can reach the same position and one wins while the other draws, purely from endgame knowledge. This is the cheapest rating you will ever gain.
The opposition
The opposition means putting your king directly in front of the enemy king with one square between them, on your move. The player who does not have to move often wins the fight for key squares.
- Kings on e4 and e6 with Black to move: White has the opposition.
- The side with the opposition can force the other king to step aside.
Winning the opposition lets your king escort a pawn forward or block the enemy king from stopping yours.
The square of the pawn
Can a lone king catch a passed pawn? Use the square rule instead of counting moves:
- Draw an imaginary square using the pawn’s file and its distance to promotion.
- If the enemy king is inside that square (or can step into it on its move), it catches the pawn.
- If the king is outside the square, the pawn promotes.
Tip: remember the pawn’s starting jump. A pawn still on its home square can move two, so measure the square from the square in front of it, not from the pawn itself.
Key squares
For a pawn to promote, your king usually must reach one of its key squares — the squares ahead of the pawn that guarantee promotion.
| Pawn on | Key squares | Result if king reaches them |
|---|---|---|
| 5th rank | two ranks ahead, three files | Win regardless of opposition |
| Center pawn | squares in front | Win with the opposition |
| Rook pawn | corner squares | Often only a draw |
The rook pawn (a- or h-file) is the great exception: the defending king can hide in the corner and draw even a pawn down.
A simple plan to convert
- Bring your king in front of your pawn, not behind it.
- Fight for the opposition before pushing.
- Push the pawn only when your king controls the squares ahead.
- Watch for the rook-pawn draw before trading into it.
Learn these four ideas and practice them against a friend or engine. Endgame skill is quiet, but it is the mark of a player who stops throwing away half points.