What Is a Skewer in Chess (And How It Differs From a Pin)

A skewer is one of the most satisfying tactics in chess to pull off — and one of the easiest to miss if you're not actively looking for it. It shows up constantly in real games, often deciding the outcome in a single move.

What a skewer actually is

A skewer happens when you attack a valuable piece along a line — a rank, file, or diagonal — and behind it sits a second, less protected piece on that same line. The first piece has to move to avoid being captured, and when it does, the piece behind it is suddenly exposed and often falls too.

Think of it as the mirror image of a pin. In a pin, the less valuable piece is in front and can't move without exposing something bigger behind it. In a skewer, the more valuable piece is in front, and it's the one being forced to move.

The classic example

Picture a rook checking an enemy king along an open file, with the opponent's queen sitting directly behind the king on that same file. The king must move out of check — there's no choice — and once it does, the rook is free to capture the queen next.

This exact pattern, king-then-queen on a single line, is the most common and most punishing version of a skewer. But skewers work with any piece combination: a bishop skewering a queen into a rook along a diagonal, or a rook skewering two rooks along a rank.

Skewer vs. pin: a quick way to tell them apart

Ask yourself: is the piece I'm attacking directly forced to move, or does it just have a strong incentive not to? If it's genuinely forced (like a king in check), you're looking at a skewer. If it's merely discouraged from moving because something valuable sits behind it, that's a pin.

Why skewers are easy to miss

Most players actively scan for pins, since pinning an opponent's piece is a common, deliberate plan. Skewers are trickier because they often require your own piece to move onto the line first, creating the threat in one motion rather than setting it up over several moves. That means recognizing a skewer is frequently about spotting a tactical opportunity in a single move, not a slow-building plan — which makes pattern recognition, built through repetition, especially valuable here.

How to train for it

Look for any position where two enemy pieces sit on the same rank, file, or diagonal, with a piece of yours (or one you could move there) attacking along that same line. If the front piece is more valuable than the back one, or is forced to move for another reason (like check), you may have a skewer available.

Ready to put this into practice?