Zugzwang in Endgames

Zugzwang in the endgame is a position where every move makes things worse, so having to move loses. With few pieces left, a spare pawn move often decides who is in zugzwang.

Start0/5
After h3 h5 h4 the h-pawns are locked and Black has only king moves. With the kings on d5 and d7, Black must give way, and Kc6 reaches a key square.

With few pieces left, many positions have no safe move at all. A spare pawn move hands the turn to the opponent, so spending one early is a common way to turn a win into a draw.

How to do it

  1. 1Count the spare pawn moves on both sides before the kings meet.
  2. 2Keep yours in reserve and make the opponent spend theirs.
  3. 3When they run out, take the opposition or a key square.

For your level

Spare tempi are a resource like material. Trading off your last waiting move can turn a won endgame into a draw.

Check you have it

Question 1 of 1

Which white pawn has no enemy pawn able to stop it?

Common mistakes
  • Making pawn moves early because nothing else seems useful, then having none when they matter.
  • Pushing a pawn two squares when one square would have kept a move in hand.
Questions
How do I count spare tempi?
Count the pawn moves each side can make without losing a pawn or opening the position for the opponent. The side with more can hand the move over when it matters.

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