What is a skewer in chess?

A skewer is a tactical motif where a long-range piece attacks two enemy pieces lined up on the same rank, file, or diagonal. The more valuable piece stands in front and must move, exposing the less valuable piece behind it to capture. It is the reverse of a pin. Skewers often decide rook endgames because open files naturally line pieces up.

What is the difference between a skewer and a pin?

In a pin, the less valuable piece is in front and cannot move without exposing a more valuable piece behind it. In a skewer, the more valuable piece is in front, so it flees and leaves the piece behind it to be captured. Both rely on long-range pieces attacking along a line. Recognizing which motif is available can turn a draw into a win in the endgame.

How do I spot a skewer in a rook endgame?

Scan every rank and file where your rook and an enemy rook or king share a line. When the king sits between your rook and the enemy rook, a check creates a skewer: the king must move and the rook behind it is lost. Look for undefended pieces lined up along open files. The winning idea is usually a forcing move — typically a check — that wins material outright.

What is an x-ray attack in chess?

An x-ray attack, sometimes called a skewer, occurs when a piece attacks through an enemy piece to hit a second piece behind it. When the front piece moves, the rear piece becomes the target. Rooks and bishops are the classic x-ray pieces because they slide along open lines. In endgames, these attacks often win the exchange and decide the game.

How can a check win material in an endgame?

A checking move forces your opponent to respond, and sometimes every legal response loses material. When a king stands between your rook and another enemy piece, a check creates a skewer that wins the piece behind the king. The tempo of the check is the whole point: your opponent has no time to rescue the second piece. This is a common winning pattern in rook endgames.

Skewer Advanced Puzzle (Rated 860): Skewer

Skewer Advanced Puzzle (Rated 860): Skewer — Rook Endgame

A skewer is the reverse of a pin: a long-range piece attacks two enemy pieces lined up on the same rank, file, or diagonal, with the more valuable piece in front. When that front piece moves to safety, the piece behind it is exposed to capture. In rook endgames, skewers are among the deadliest weapons because both rooks and the king often share open files. Here the White king and rook sit on the same file, and the Black rook is poised to exploit that alignment and win material outright.