En Passant: The Rule Nobody Believes Is Real

En passant is the pawn capture nobody believes is real. Here's exactly when it applies, how to spot it, and why the rule exists — with diagrams.

The first time it happened to me, I called it cheating

My pawn pushed two squares, sailed safely past an enemy pawn on the next file, and I sat back pleased with myself. Then my opponent reached over, took my pawn, and set his own pawn down on a square mine had never touched.

He could. I hadn't met the rule yet. And my disbelief was the most honest reaction anyone has to en passant — there's an entire corner of the internet built on people discovering this rule mid-game and demanding, in all caps, that someone google en passant before they'll accept it. The move looks invented. It looks like something made up on the spot to win an argument. Which is why it deserves a slow, proper explanation — because once you see the reasoning underneath it, it stops feeling arbitrary and starts feeling almost inevitable.

So, to answer the question in the title directly: yes, en passant is a real chess move. It appears in the FIDE Laws of Chess, it has been part of the game for centuries, and it is played in every rated tournament on earth. What follows is everything I wish that opponent had explained to me.

What en passant means, and how to say it

Start with the small thing people get stuck on: it's French. En passant means "in passing," and it's said roughly on-pah-SAHN , the final t gone soft the way French likes to do. The name is the entire idea. You are capturing a pawn as it passes you — in the act of passing, on the square it passed through.

How the en passant rule works — with examples

When an enemy pawn uses its double-step — the two-square advance it's allowed only from its starting square — and lands directly beside one of your pawns, you may capture it as if it had moved only one square. Your pawn moves diagonally onto the square the enemy pawn skipped over , and the enemy pawn comes off the board.

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En Passant in Chess: The Rule Explained with Examples | Endgame Society