Chessy
What Is the Opposition in Chess?
The opposition is a king-and-pawn endgame technique where the two kings face each other directly with exactly one square between them — and in that standoff, the side who is NOT required to move usually controls the key squares and holds the upper hand.
The opposition clicks fastest when you see it in action — practice king-and-pawn endgames for free on Chessy.
Play free against the Chessy engine →Why 'not moving' is an advantage here
This is one of the few situations in chess where being forced to move actually hurts you. In direct opposition, whichever king has to move must step aside, letting the other king advance past it toward a pawn, a key square, or the goal of promoting a pawn. Having the opposition means the other side is stuck making that concession.
How the opposition decides pawn endgames
In king-and-pawn endgames, the side holding the opposition at the right moment can often escort a pawn to promotion, while the other king is repeatedly forced backward. This single concept — one square, one tempo — is frequently the difference between a win and a draw in an otherwise simple-looking ending.
Winning the opposition when you don't have it
Players can fight for the opposition using triangulation — maneuvering the king in a small loop to waste a move and hand the obligation to move back to the opponent — or by using a spare pawn move elsewhere on the board to pass the turn without touching the king at all.
Frequently asked questions
What does having the opposition mean?
It means your opponent is the one forced to move their king away, letting your king advance, rather than the reverse.
Why does the opposition matter in the endgame?
With few pieces left, a single tempo often decides whether a pawn can be escorted to promotion, making king positioning critical.
What is triangulation?
A technique of maneuvering the king in a small loop to lose a tempo on purpose, passing the obligation to move back to the opponent and winning the opposition.
Is the opposition only about kings facing each other directly?
Direct opposition (one square apart) is the classic case, but related ideas like distant and diagonal opposition apply the same principle over longer distances.