Short answer: Teach clearance as "get out of the way": a piece or pawn moves off a square or a line so another piece can use it, ideally with a threat that forces the opponent's reply. Start with students who already know forks, pins and discovered attacks, show one idea at a time, and ask what the moving piece was blocking.
Clearance is the tactic students tend to find strange the first time they meet it. Most tactics ask "where can my piece go to win something?" Clearance asks the opposite question: "which of my own pieces is in the way, and where can it go with a threat?" That flip is the whole lesson, and it is worth building your teaching around it.
I'm not a chess coach, so treat this as a teaching structure to adapt rather than a rulebook. It is built from widely agreed chess ideas and from how practice and memory work.
What is a clearance in chess?
A clearance is a tactic where you move a piece or pawn away from a square or a line so that another one of your pieces can use it. The cleared square might let a piece land somewhere powerful. The cleared line might let a rook, bishop, or queen reach a target it could not see before.
The key detail is that the move which clears the way usually comes with its own threat, most often a check or a capture. That forcing quality stops the opponent from using their reply to fix the problem. Without it, you are simply tidying up and giving your opponent a free move.
It helps to give students two plain pictures:
- Clearing a square. One of your pieces is sitting on the square another piece needs, so it moves away with a threat
- Clearing a line. One of your pieces is standing between a long-range piece and its target, so it moves away with a threat
How is clearance different from a discovered attack?
In a discovered attack, the piece that moves reveals an attack from the piece behind it, and the revealed attack is the main point. In a clearance, the cleared square or line is what the next move needs, and the first move is a forcing way to get there. The two overlap, which is why students mix them up.
A useful way to tell them apart in a lesson is to ask what the first move is for. If the student says "to uncover the attack", it is a discovered attack. If they say "to make room, and to force a reply while I do it", it is a clearance. Do not worry if a position can be described both ways. Plenty of real tactics can. The label matters less than the habit of noticing your own blocking pieces.
If your student is still shaky on the revealed-attack idea, go back to how to teach discovered attacks first. Clearance sits comfortably on top of it.
When should you teach clearance?
Teach clearance after the student is comfortable with forks, pins, skewers, and discovered attacks, and ideally after deflection. It leans on three skills that those themes build: noticing forcing moves, seeing along lines, and asking what a piece is currently doing. A student who lacks those will see clearance as a pointless pawn or piece shuffle.
Many coaches put it in the later half of a tactics sequence. We cover the ordering question in what order to teach chess tactics in, and the full picture sits in our coach's guide to teaching chess tactics.
A quick readiness check before you start: show the student three positions and ask, for each one, "what is the most valuable thing this piece is doing right now?" If they can answer in a sentence, they are ready.
How do you teach clearance step by step?
Teach it in four short stages, and keep each stage to a few positions so students are not buried in examples. The aim is to move from "I can see it when told" to "I notice the blocker unprompted".
- Name the blocker. Show a position where one piece stands in the way. Ask the student to point to the piece that is in the way, and to say what it is blocking
- Find the forcing move. Ask which move gets the blocker out of the way with a check or a capture. If there is none, the idea does not work, and that is a useful lesson in itself
- Follow the cleared line. Once the blocker has moved and the opponent has replied, ask what the other piece can now do
- Spot it cold. Give positions with no label, some with a clearance and some without, and ask the student to decide
Stage four is where the skill is built. In a real game nobody tells you a clearance is available, and some positions look like they have one and do not.
What does a clearance look like in a lesson?
Here is a made-up example, not a position from a real game, described in words. Imagine your rook is on a file, and one of your own knights stands on the same file directly in front of it. Beyond the knight, on that same file, is an enemy queen that nothing is defending. The rook cannot capture the queen because the knight is in the way.
The idea is that the knight moves away with check. Your opponent has to deal with the check, so they cannot save the queen. Then your rook, now with a clear line, takes it. The knight's move did two jobs at once: it cleared the file, and it made a threat the opponent could not ignore.
Walk a student through it with these questions:
- Which of my pieces is in the way, and what is it blocking
- Where can it go with a check or a capture
- What must the opponent do next
- What can my other piece do once the line is open
Then change the position slightly and ask again. Remove the check, so the knight's move is not forcing, and ask whether the idea still works. Students quickly see that without the forcing move the opponent just moves the queen. That contrast teaches more than a dozen perfect examples.
Want clearance puzzles ready to assign?
Chess Tactics Mastery: Coach Edition covers Clearance as one of twelve core tactics, with 25 puzzles a day in an interactive app or on printable pages. One payment of £97 ($130), unlimited students, no logins.
What mistakes do students make with clearance?
The most common mistake is moving the blocker without a threat, which hands the opponent a free move. The others are mostly variations on not checking what the opponent can do in reply. Use the table below to diagnose what you are seeing.
| Mistake | What you will hear | What to ask |
|---|---|---|
| Clearing without a threat | "I moved it so my rook could see the queen" | What does your opponent do with their free move? |
| Clearing the wrong piece | "It was the nearest one" | Which piece is actually blocking the line? |
| Opening a line for the opponent too | "I didn't see that bishop" | What does the moved piece no longer protect or block? |
| Stopping one move early | "I cleared it and then I wasn't sure" | What is your follow-up, and does it still work after their best reply? |
| Seeing clearance everywhere | "There must be a trick here" | Can you prove it, or is it a hope? |
The last row deserves attention. Once students learn a new theme, they start to force it into positions where it does not exist. Mix in "no tactic here" positions so they learn to say so.
What questions and practice help clearance stick?
Questions that make the student describe the blocker work better than explanations, and short regular practice works better than one long session. A few prompts that carry across positions:
- Which of my pieces is in the way
- What would that piece have to do for my other piece to work
- Does the move come with a check, a capture, or a bigger threat
- What is the opponent's best reply, not just their first one
For practice, set clearance puzzles on their own for a stretch, then mix them with the themes already learned. A well-known 2006 study by Roediger and Karpicke on test-enhanced learning found that practicing recall beats re-reading, so have the student find the move before they see the answer. Our post on how to make chess tactics stick goes deeper on this.
It also helps to connect clearance to the deflection ideas you have already taught. Both are about getting a piece to stop doing a job. In deflection you force the opponent's piece away, and in clearance you move your own. Our guide to how to teach deflection is a good companion. For setting and checking the work itself, the complete guide to chess homework for students covers the practical side.
FAQ
What is a clearance in chess?
A clearance is a tactic where you move a piece or pawn off a square or line so another piece can use it. The move that clears the way is usually forcing, such as a check or a capture, so the opponent has no time to react.
Is clearance the same as a discovered attack?
They overlap but they are not the same. A discovered attack is about revealing an attack from the piece behind. A clearance is about making room for a piece to land or travel. Many positions can be described both ways, and that is fine.
When should students learn clearance?
After they are comfortable with forks, pins, skewers, and discovered attacks. Clearance relies on spotting forcing moves and seeing along lines, so students who have those skills will pick it up far faster than complete beginners.
Why do students find clearance hard to spot?
Most tactics ask where a piece should go. Clearance asks which of your own pieces is in the way, which is a less natural question. Students also tend to focus on the target, not on the blocker standing between them and it.
How many clearance puzzles should a student do?
There is no fixed figure. A short daily set on a single theme, done carefully, tends to work better than occasional long sessions. Younger or busier students may do fewer. Make sure they try to find the move before looking at the answer.
How can I check a student understands clearance?
Give them a few unlabelled positions, some with a clearance and some without, and ask them to explain their choice in one sentence. If they can name the blocker, the forcing move, and the follow-up, they understand it.
Where to go next
Read the coach's guide to teaching chess tactics for the full structure, or see how Chess Tactics Mastery: Coach Edition gives your students a ready-made year of practice, including Clearance, to go with your lessons.
