Tactic

What Is a Zwischenzug (In-Between Move)?

A zwischenzug is a forcing in-between move played before the expected recapture, changing the outcome of an exchange.

Definition

A zwischenzug — German for 'in-between move', also called an intermezzo — is a forcing move inserted into a sequence before the move everybody expects. Instead of automatically recapturing, one side plays a check or a bigger threat first, forcing a response, and only then completes the exchange. It is one of the main reasons you cannot judge a capture just by counting attackers and defenders on a square.

Example

You capture a knight expecting a routine recapture. Instead of taking back, your opponent plays a check that also attacks a loose piece of yours. You must answer the check, they collect the loose piece, and only then recapture — and the exchange that looked equal has cost you a piece.

How to spot it

  • Before any exchange, ask: does my opponent have a check or a bigger capture first?
  • Loose pieces anywhere on the board are what make zwischenzugs possible.
  • When you recapture automatically, you are trusting the position — verify instead.
  • Look for your own in-between moves too: a check before recapturing often wins material.

The mistake most players make

Assuming the expected recapture is forced. Counting material on one square only works if neither side has a stronger forcing move available elsewhere.

Frequently asked questions

What is a zwischenzug in chess?

A zwischenzug, or in-between move, is a forcing move — usually a check or a bigger capture — played before making the expected recapture. It changes the material outcome of an exchange and is a common way simple-looking trades go wrong.

How do you avoid falling for a zwischenzug?

Before every exchange, check whether your opponent has a check, a capture of something more valuable, or a threat they can insert first. Loose, undefended pieces are what make in-between moves work, so keep your pieces defended.

Related terms

  • Discovered attack — A discovered attack is when moving one piece unveils an attack from a long-range piece behind it.
  • Fork — A fork is a single piece attacking two or more enemy pieces at the same time, so the opponent can only save one.
  • Initiative — The initiative is being the player making threats while your opponent is forced to react.
  • Check — Check is a direct attack on the king that must be answered immediately.

Practise this pattern

Definitions stick once you have seen the pattern in a real game. Solve tactics puzzles to train recognition, review one of your games to find where it came up, or ask the coach to explain it in a position you are looking at.