Intermezzo
An intermezzo (also called a Zwischenzug, "in-between move") is a tactic in which a forcing in-between move is inserted instead of the expected response. The opponent has to answer that move first, so the original sequence - typically a recapture - is delayed by one move. During that delay you improve your position or pick up extra material.
This is a real game (Black to move). White has just played Nxe6, grabbing a black pawn - the natural reply is to recapture immediately with fxe6. Instead, Black inserts Bxe3+ first - a check, so White must respond before anything else. In the game White recaptured with fxe3, and then Black took the knight with fxe6. By checking first and recapturing second, Black ends up a piece ahead of where the plain recapture would leave it (see the breakdown below).
(Source: Lichess puzzle 0DUDT, CC0. The original game reached this position from a Caro-Kann Advance Variation.)
Definition
A forcing move (a check, a serious threat, or a capture that must be answered) is inserted into the middle of a natural sequence - most often a recapture - to steal a tempo.
The defining property is forcing. If the in-between move is not forcing, the opponent can simply ignore it and proceed with the expected response, and the intermezzo fails.
| Forcing level | Example | Strength |
|---|---|---|
| Check | Must be addressed immediately | Most forcing - but check the conditions below |
| Mate threat | Must be averted in one move | Strong - works unless a refutation exists |
| Capture | Must be recaptured or the material is gone | Strong - works unless the opponent has a bigger counter (second example below) |
| Higher-value capture threat | Forces evacuation or trade | Moderate - fails if the opponent accepts the trade |
| Developing move | Improves own position only | Weak - rarely classified as an intermezzo |
In standard chess literature, "intermezzo" typically refers to moves at the check or compelling-threat level.
Why Intermezzi Get Missed
- Recapturing is a reflex. The urge to answer a capture at once skips the question "is there something stronger first?".
- Exchanges are seen as one block. Players treat "take-take-take" as fixed and assume nothing can be inserted into it. In fact, you can look for an intermezzo between every capture.
- Opponent intermezzi are equally invisible. A winning exchange can collapse into a losing one if the opponent inserts a single forcing in-between move.
Recognition Cues
Look for an intermezzo when these three conditions hold together:
- You are mid-exchange or mid-forced-sequence (about to recapture or play an expected reply).
- One of your pieces can deliver a check or compelling threat at that exact moment.
- The in-between move must gain more than delaying the recapture costs. The recapture must still be possible afterward, or the intermezzo does not come out ahead.
If any of them is missing, the natural recapture is usually the right move.
The Example in Detail: Why It Nets Material
Look again at the example at the top (Black's move right after White's Nxe6).
- Immediate recapture (
fxe6) only: the knight is recovered, but now White plays Bxc5, winning Black's undefended c5-bishop for free - Black ends up worse. - Intermezzo (
Bxe3+) thenfxe6: while White must answer the check, Black trades its at-risk c5-bishop for the e3-bishop with tempo and still recovers the knight - a whole piece better than the immediate recapture (which dropped the c5-bishop).
The board below shows the immediate recapture: the moment Black plays 18...fxe6, White answers Bxc5, and the undefended c5-bishop falls because Black has nothing that can recapture on c5. That is why the Bxe3+ check has to come first.
The recapture is delayed but not lost. While White answers the inserted check, the e6-knight stays put, so Black retakes it safely next move. That is the mechanism of the intermezzo: reverse the order, insert the forcing move first, and still collect the original recapture.
Another Pattern: An Intermezzo That Is Not a Check
The in-between move in the example above was a check. A check is the safest form, since the opponent has no choice but to answer it, but an intermezzo is not always a check. Below is another position from the same puzzle database (Black to move). White has just played Nxc5, grabbing a black pawn.
The natural reply is Bxc5, recapturing with the e7-bishop. But the c5-knight is not standing alone: the e3-bishop guards it through d4. Recapture straight away and White answers Bxc5, so Black has merely traded bishop for knight and is still two pawns down.
So Black inserts Nxe3 before recapturing. It is not a check, but if White does not take back, White is simply a bishop down, so White recaptures. Only after Rxe3 does Black play Bxc5 to recover the knight, and this time the bishop that guarded c5 is already off the board, so the knight comes for free.
The mechanism is the same as the first example: reverse the order, insert the forcing move first, and still collect the original recapture. What differs is where the forcing power comes from. In the first example it was a check; here it is that declining to take back simply costs White the bishop. That is less absolute than a check, and it would not have worked if White had a counterthreat worth more than the bishop.
(Source: Lichess puzzle 2mRAF, CC0)
What Our Puzzle Data Shows
The puzzle database behind this site holds 3,090 positions tagged as intermezzo (counted August 2026).
The first question was whether checks really are not the only form, and how often each form appears. Replaying the 1,000 most-played of those puzzles through chess.js and classifying the first move of the solution gives 61.5% checks, 29.7% captures, and 8.8% moves that are neither. This counts how often each kind is played, not how strong it is. Checks are the majority, but the remaining 38.5% are not checks. If you scan only for checks when it is your turn to recapture, you skip that 38% entirely, which is why the second example above was chosen from the non-checking side. (This one classification is a 1,000-puzzle sample rather than the full tag; every other figure below covers all 3,090.)
By phase, 64.1% are middlegame, 27.8% endgame, and 8.1% opening. Quiet moves are the reverse, with 79.3% in the endgame. An intermezzo only exists inside an exchange sequence, so it clusters where there are still pieces left to trade.
62.1% have a two-move solution. An intermezzo is less a long combination than a local question of move order. The endings agree: only 4.0% finish in mate, while 58.3% end in a material or positional edge. It is a tactic that changes the size of an advantage rather than one that ends the game.
Ratings are spread wide: 32% sit at 2000 or above, 8% below 1200, and the lowest is 861. Quiet moves are 62% above 2000 by comparison, so an intermezzo is something you start meeting in real games not long after leaving beginner territory.
Conditions for an Intermezzo to Work
For an intermezzo to pay off, all three conditions must hold at once:
- The inserted move is forcing. Check, mate threat, or a threat that loses material at once if ignored.
- The original recapture is still available after the reply. The opponent's reply must not rescue or defend the piece you meant to take back.
- The inserted move is not a loss in itself. The piece that makes the in-between move must not simply be lost for free. If it can be taken, the exchanges that follow must still favor you.
If any of them fails, the intermezzo usually costs you material instead of winning it.
Common Mistakes
- Triggering without verifying the follow-up recapture. If the opponent's reply cuts off the recapture line, the intermezzo ends with the captured piece staying lost.
- Ignoring whether the intermezzo piece is captured on its new square. A "forcing" in-between move loses if the piece itself is hanging.
- Inventing one that isn't there. Not every exchange contains an intermezzo. Check for candidates; do not manufacture them. Natural recapture is right more often than not.
Defending Against Opponent Intermezzi
If you are about to enter an exchange that you believe you win, reduce intermezzo risk by:
- Enumerating the opponent's forcing resources first. Before initiating, scan all checks, mate threats, and major captures available to them.
- Confirming your recapture piece is not vulnerable mid-sequence. Check whether it could be pinned, attacked, or cut off by the intermezzo response.
- Reordering the exchange. Start with the most forcing move (a check) yourself, which leaves the opponent less room for an intermezzo.
Checklist
- Are you in a recapture or expected-reply position?
- Is one of your pieces in range to deliver a check or compelling threat at this exact moment?
- Will the recapture still be available after the intermezzo reply?
- Will the intermezzo piece survive on its new square?
- Does the opponent have a matching intermezzo that could overturn the result?
Related Tactics
- Discovered Check - a form with especially high forcing power, since the opponent has to deal with the check first.
- Deflection - intermezzi often function as deflections, pulling a defender off a key duty.
- Capturing the Defender - the two overlap whenever the inserted move removes the piece guarding the target, as in the second example above.
- Attraction - intermezzo checks frequently force the enemy king onto a square that completes a combination.
- Sacrifice - many sacrificial combinations include an intermezzo along the way.
- Quiet Move - a move that is neither a check nor a capture yet creates an unstoppable threat. An intermezzo pins the opponent down with a forcing move to buy a tempo; a quiet move leaves the opponent a free reply and the threat still stands.
FAQ
Q. Are intermezzo and Zwischenzug the same? Two names for the same idea. Zwischenzug is German for "in-between move"; intermezzo is borrowed from Italian musical terminology. Both refer to inserting a forcing move into an expected sequence. English chess writing uses both interchangeably.
Q. Does an intermezzo always have to be a check? Check is the most forcing form, but mate threats and major-capture threats also qualify. The defining property is forcing power the opponent cannot ignore.
Q. Best training method? Whenever you are about to recapture, pause for one second and ask "is there a check or major threat first?". Spaced-repetition practice on intermezzo puzzles turns that candidate search into a habit.
Q. How do I avoid being intermezzo'd? Before entering a "winning" exchange, list every check available to the opponent. If your king sits on an open line, an opponent intermezzo check can flip the entire exchange - verify that line before committing.
References
- Lichess, puzzle theme Intermezzo (the source of this site's puzzle tags). https://lichess.org/training/themes
- Opening example position: Lichess puzzle
0DUDT(CC0). https://lichess.org/training/0DUDT - Second example position: Lichess puzzle
2mRAF(CC0). https://lichess.org/training/2mRAF - Statistics produced by
scripts/analyze-intermezzo-stats.mjs; results recorded indocs/data/intermezzo-stats.md.
Start training: Intermezzo Training
Related: Discovered Check · Sacrifice · All tactics