The opposition means placing your king directly facing the enemy king with exactly one square between them, so that whoever has to move first is forced to step aside and give ground.
It’s the single most important idea in king-and-pawn endgames. Two kings can never stand next to each other, so when they line up with one square in between, they’re locked in a staring contest — and the player who is not to move “holds the opposition.” Their opponent has to blink first, abandoning a key square. That tiny concession is often the whole difference between winning and drawing when the board is down to kings and a pawn or two.
There are flavors of it: direct opposition (kings on the same file, rank or diagonal, one square apart), distant opposition (an odd number of empty squares between them on a line), and diagonal opposition. The rule of thumb is the same throughout — you want it to be your opponent’s move when the kings face off. Master this and endgames that look dead-drawn suddenly become winnable, and losing ones become holdable.
Related terms
- Full pillar: the chess glossary
- Go deeper: the opposition explained · key squares · king and pawn endgames
- Sibling ideas: triangulation · tempo · fortress
Mini-FAQ
Who “has” the opposition? The player who does not have to move. If the kings face off one square apart and it’s your opponent’s turn, you hold the opposition — they must step aside.
Why does the opposition matter? In king-and-pawn endings it decides who controls the key squares in front of the pawn — which usually decides the whole game.
Written and fact-checked by the Chess Lab Academy Editorial Team (AI-assisted, human-edited) · Position legality and the winning result verified with python-chess · Last verified 2026-07-13 · How we verify content.