Short answer: A skewer is a line attack where a valuable piece is forced to move, so the piece behind it can be captured. Teach it straight after pins, because it is the same geometry the other way round: in a pin the cheaper piece is in front, in a skewer the more valuable one is. Show both side by side, then give students many short examples.
Skewers are one of the tactics students most often mix up with something else. Ask a class to explain the difference between a pin and a skewer and you will usually get a pause, then a guess. That is a sign the two were taught in the same breath, or one was taught too quickly.
This guide sets out a way to teach skewers that keeps them clearly separate from pins, with a lesson structure, a table you can copy onto a board, the mistakes to watch for, and some ideas for practice between lessons. I'm not a chess coach, so treat it as a framework to adapt to your own students.
What is a skewer in chess?
A skewer is an attack along a line against a valuable piece, with a less valuable piece standing behind it on the same line. The valuable piece has to move out of the way (or the attacker takes it), and then the attacker captures whatever was behind. Only bishops, rooks, and queens can skewer, because only they attack along long lines.
The simplest version to start with involves a king. If a king is in check along a line, it must deal with the check, and if another piece stands on that same line behind the king, the attacker can take it next. Students find this version easy to picture because the king has no choice. Once they are comfortable, move on to skewers against a queen or rook, where the defender does have a choice but every choice loses something.
What is the difference between a skewer and a pin?
The difference is which piece is in front. In a pin, the front piece is the cheaper one and moving it would expose something more valuable behind. In a skewer, the front piece is the more valuable one, it has to move, and the cheaper piece behind it falls. A table makes this easy to hold in mind:
| Question | Pin | Skewer |
|---|---|---|
| Which piece is in front? | The less valuable one | The more valuable one |
| Which piece is behind? | The more valuable one | The less valuable one |
| What does the front piece want? | To stay put, because moving costs something | To run away |
| What wins material? | Piling up on the pinned piece | Capturing the piece behind once the front one moves |
A one-line memory aid some coaches use: a pin says "don't move", a skewer says "move". Ask students to say it aloud each time they spot one. If you have not yet covered pins in depth, our post on how to teach chess pins is the natural companion to this one.
When should you teach skewers?
Teach skewers after forks, pins, and trapped pieces, once students are comfortable with long-range pieces and lines. Skewers depend on a student seeing a rank, file, or diagonal clearly, which is the same skill pins use. Our post on the order to teach tactical themes explains why this sequence works for many students, and the complete guide to teaching chess tactics puts it in the wider picture.
A useful readiness check is to ask a student to name the three ways a bishop, rook, or queen can be blocked or stopped on a line. If they can talk about lines confidently, skewers will make sense. If they hesitate, spend another lesson on lines and diagonals first.
How do you teach a skewer step by step?
Use the same four-step pattern you use for other themes, but add a pin comparison in the middle. The steps below fit a 45 to 60 minute lesson:
- Show. One clear position where a rook checks a king along a line with a queen standing behind it. Name the pieces and the line out loud, and ask the student to describe what happens next in their own words
- Contrast. Put a pin and a skewer on the board side by side. Ask which piece is in front in each, and which one wants to run away
- Find. Give three or four positions where the student has to find the skewer themselves. Start with king skewers, then move to queen and rook
- Notice. Give a position with no label, where a skewer may or may not exist. Spotting that a tactic is available is the real skill, so this step matters most
Keep your own explanation short. A student who has to say "the queen is in front, so she has to move, and then I take the rook" has learned more than one who listened to you say it.
What does a worked example look like in a lesson?
A good worked example takes one idea and asks the student to explain it. Here is one described in words, with made-up details you can swap for your own positions. Imagine a position where Black's king and queen stand on the same long diagonal, and White's bishop has a clear route to that diagonal.
Ask these questions in order:
- What can the bishop attack on that diagonal
- Which of the two pieces is in front, and which is behind
- If the front piece has to move, can the back piece be saved
- What would the opponent try instead, and does it work
The last question is the one students skip. A skewer only works if the opponent has no good way of dealing with the threat, such as capturing the attacker, blocking the line, or moving the front piece with a threat of their own. Teaching students to check for those three defences builds good calculation habits, and it applies to every other tactic too.
Skewers are one of twelve themes, already built
Chess Tactics Mastery: Coach Edition covers skewers in a themed month of their own, with 25 puzzles a day, an interactive app that works offline, and printable PDFs. One payment of £97 ($130) for unlimited students, no logins, month-by-month guarantee.
What mistakes do students make with skewers?
The most common mistake is calling a skewer a pin, but there are several others worth planning for. Knowing them in advance lets you design your examples to bring them out.
- Mixing up pins and skewers. Fix it with the side-by-side comparison and the "stay put or run" question
- Skewering with an unprotected attacker. The piece that makes the skewer can often simply be captured, so students must check whether it is defended
- Not noticing the line. Students look at pieces, not at the squares between them. Ask them to trace the line with a finger
- Forgetting the piece behind. They win the front piece's attention but not the prize. Ask "what do I take next?" every time
- Missing the defender's counter. The front piece may be able to move with check or capture the attacker, which ruins the idea
If you keep a short note of which of these each student makes, your next lesson plans itself.
How do you help students spot skewers in their own games?
You train them to look for two valuable pieces lined up on the same rank, file, or diagonal. A student does not have to see the whole tactic at once. They only have to notice the alignment and then ask whether an attacker can reach the line.
Three habits help:
- After every move, scan for kings, queens, and rooks sharing a line with other pieces
- Ask "which of my long-range pieces could reach that line with a check or a threat"
- Before moving, check you are not creating that alignment for your opponent
Review a student's recent games together and stop at the moments where such an alignment appeared. Even if neither player used it, naming it trains the eye.
What homework suits skewers?
Short, themed sets of skewer puzzles done most days work better than one large set done once. A sensible shape is a small daily amount for a week or two, then a few skewers mixed into later sets so the idea does not fade. Making students find the move before they check the answer matters more than the count, which is why a weekly mix of pins and skewers together is a good test of whether the difference has landed.
A simple format is to ask for ten to fifteen skewer positions across the week, with the student writing one sentence for each: which piece was in front, and what was behind. That sentence is the proof they understood the idea, and it takes you seconds to check. For more on setting and checking practice, see our guide to chess homework for students, and if students are still missing patterns, why chess students keep missing tactics helps you work out why.
FAQ
What is a skewer in chess?
A skewer is an attack along a line against a valuable piece, with a less valuable piece behind it. The front piece has to move, and then the attacker can capture the piece that was behind.
What is the difference between a pin and a skewer?
In a pin, the less valuable piece is in front and moving it would expose a more valuable piece behind. In a skewer, the more valuable piece is in front and must move, losing the piece behind it.
Which pieces can make a skewer?
Only bishops, rooks, and queens can make skewers, because they attack along long lines. Knights, pawns, and kings cannot skewer, though any piece can be the target of one.
When should I teach skewers to students?
After forks, pins, and trapped pieces for most students. Skewers rely on seeing lines clearly, so make sure students are comfortable with how bishops, rooks, and queens move along ranks, files, and diagonals first.
What is a king skewer?
A king skewer is a check along a line with another piece standing behind the king on the same line. The king must move out of check, and the attacker can then capture the piece that was behind it.
How many skewer puzzles should a student do?
There is no fixed figure. A small daily amount on skewers alone, with real attempts before checking answers, works better than a large set done once. Younger or busier students may need fewer puzzles a day.
Where to go next
Read the complete guide to teaching chess tactics for the full picture, or see how Chess Tactics Mastery: Coach Edition gives your students a themed month of skewers, plus eleven other tactics, to practice between lessons.
