The zwischenzug (in-between move) in practice, worked examples
Before recapturing a piece or responding to a threat, there is sometimes an even stronger move to insert first. Here's how to spot a zwischenzug on the board.
Key takeaway
Before automatically recapturing a piece, always ask whether there isn't a stronger move to insert first: an immediate check or threat can turn a neutral exchange into a clean material gain.
The zwischenzug, or "in-between move," is one of the most rewarding tactical reflexes to build. The principle: instead of immediately playing the "expected" move (a recapture, a response to a threat), you first insert a stronger move, usually a check or an even bigger threat, which forces the opponent to react before they can deal with anything else.
The reflex to break: "I have to recapture right away"
Many beginners recapture a piece the moment it's taken, out of pure habit. That's often the right choice, but not always: if a stronger move is available first, it can be well worth playing that first, since the recapture will usually still be there a move later.
A concrete example
The natural recapture 1.bxc3 is perfectly playable. But before recapturing, White has a zwischenzug available: 1.Bxf7+! This move captures a pawn while giving check, forcing an immediate reply from the black king, for example 1...Kxf7. Only then does White recapture the knight: 2.bxc3.
The net result is the same knight recaptured as in the direct line, but with an extra pawn picked up along the way (the f7 pawn), and the black king dragged onto a more exposed square. The zwischenzug changed nothing about the main exchange: it simply preceded it with a free gain.
Why it works: the strength of the inserted move
A zwischenzug works because the inserted move is strong enough (a check, the capture of an undefended piece, a mating threat) that the opponent has no time to deal with anything else. If it weren't, the opponent would simply ignore the intermezzo and play their own planned move.
Where to look for a zwischenzug
- ✓Right before automatically recapturing a piece: is there a check available?
- ✓Right before answering a threat: is there a more urgent counter-threat?
- ✓After a minor-piece exchange: is the enemy king or a piece temporarily exposed?
Key takeaways
- ✓A zwischenzug is a strong move (often a check) inserted before the "expected" reply
- ✓It works when the opponent is forced to answer it before dealing with anything else
- ✓The habit to build: always check whether there's something better before recapturing automatically
Check your understanding
In the example position, what is the zwischenzug that improves on the recapture 1.bxc3?