Opposition is a face-off between the two kings, separated by an odd number of squares on the same file, rank, or diagonal. The side that is not to move has the opposition: it’s the other side, forced to move, that has to retreat or give ground. In king-and-pawn endgames, knowing how to take the opposition at the right moment is often the difference between winning and drawing.

How to recognize the opposition

The simplest case is direct opposition: both kings on the same file (or rank), separated by a single empty square. If it’s your opponent’s move in that setup, you have the opposition, and the advantage. There’s also distant opposition (three or five squares apart on the same line) and diagonal opposition, which follow the same logic: an odd number of squares between the kings, with the opponent to move.

Direct opposition: the kings face each other on the e-file, one square apart. Black to move: White has the opposition.

Why the opposition wins the game

In the position above, White has the opposition: the kings face each other and it’s Black’s move. The black king can’t hold his ground (e6 is off-limits): he has to give way. After 1…Kd7, the white king outflanks on the other side with 2.Kf6; after 1…Kf7, he goes through with 2.Kd6. Either way, the white king steps in front of his pawn and escorts it to promotion. If it were White to move in this exact position, White would lose the opposition: the black king would keep the face-off after every try, and the endgame would be a draw.

Taking and keeping the opposition

Taking the opposition means maneuvering to force your opponent onto the wrong side of the move count at the right moment. The basic habit: count the squares between the two kings before you move. If you can bring your king to an odd number of squares from your opponent’s while leaving him to move, you take the opposition. This calculation comes up constantly in pawn endgames, long after the openings that shaped the original pawn structure.

Frequently asked questions

Should you always look for the opposition in a king endgame?

No. The opposition only matters when the two kings are fighting directly for control of a key square, usually in front of a pawn. In many other endgames, other factors (open files, promotion squares, general zugzwang) matter more.

What’s the difference between direct and distant opposition?

Direct opposition happens one square apart, on the same line. Distant opposition happens three or five squares apart, but follows the same rule: an odd number of squares, with the opponent to move. It turns into direct opposition as the kings get closer.

Can you lose the opposition you just took?

Yes, with every king move. That’s why in tight endgames you sometimes see a king move that looks illogical: it’s played to keep the right square parity rather than to approach as fast as possible.