Zugzwang — when moving makes things worse
Understand why the obligation to move can be your biggest liability in chess.
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How It Works — Step by Step
The obligation to move
White king on d5, Black king on d7. Direct opposition — whoever moves loses ground. If it is White's turn: zugzwang. Any king step gives Black the opposition and a draw.
Direct opposition — who moves loses
Kings face each other with one empty square between them. The side to move is in zugzwang and must give way. Opposition is the fundamental building block of king-and-pawn endings.
Triangulation to change the move
White uses three king steps (d4→c4→d4… a triangle) to return to the same square with Black to move instead. This manufactured zugzwang is the key technique in many won endgames.
Practical zugzwang: all moves lose
Black has only bad choices: moving the king loses a pawn, pushing a pawn wrecks the structure. Sometimes the correct technique is simply to improve position until the opponent runs out of good moves.
Find zugzwang in my games
Kingsights scans your real games to find positions where zugzwang decided the outcome.
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