A chess game I won today. I won because my opponent was in Zugzwang.

Wikipedia

Zugzwang (German for "compulsion to move"), is a situation found in chess games wherein one player is put at a disadvantage because of their obligation to make a move; in other words, the fact that the player is compelled to move means that their position will become significantly weaker. A player is said to be "in zugzwang" when any possible move will worsen their position.

Positions with zugzwang occur fairly often in chess endgames, especially in king and pawn endgames. According to John Nunn, positions of reciprocal zugzwang are surprisingly important in the analysis of endgames.

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Here is the game. I had the White pieces.

https://lichess.org/DsuOwCYx/white#0