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You are here: Home / Learn Chess / En passant

En passant

By Dave

En passant definition and origins

En passant is a special pawn capture move in chess (En passant meaning “in passing”, in French).

The en passant rule dates from the 15th century. Originally pawns could only move one square forward at a time. An improvement was suggested to change the rules of chess so that a pawn may move two squares on its initial move. Unfortunately, this sometimes meant that a pawn could move past an opposing pawn without being taken. The en passant chess move was an additional modification to stop this happening.

If a pawn moves two ranks forward on its initial move and an enemy pawn could have captured it, had it moved only one, then the enemy pawn may capture the pawn “in passing”. This capture must be made on the turn in which the opportunity occurs, otherwise, the chance is lost.

Example of en passant

en passant initial position

Here is an example of the rule in action. Black to play. Normally black would move the pawn one square to f6 (marked by the red cross), but this would enable it to be taken by the white pawn on g6.

en passant example 2

Instead of the move to g6, black uses his initial pawn move to move the pawn TWO squares to f5, hoping to avoid capture.

en passant final position

White had read this tutorial (!) and was aware of the opportunity to take the black pawn and chooses to do so.

Please note that the white pawn does NOT go on the square when the black pawn was (shown by red cross), but rather moves as though the white pawn had moved one square only. This is the only time in chess where a piece does not replace the piece it captures on the same square.

Further information

Taking en passant in chess is often employed as part of chess puzzles as many new players are unaware of it. Some consider it one of two special chess moves, the other being castling (king and queen side).

More information about this chess rule is available on wiki.

This chess rule is probably the one that catches out the most beginners. It has certainly attracted a lot of comments on the chess game page.

If this article has helped you, or even if it hasn’t (!), please leave a comment below and let me know what you think.

Filed Under: Learn Chess Tagged With: En passant, En passant example, Special Chess Moves

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Comments

  1. vincent parisi says

    August 5, 2016 at 4:46 pm

    how do I get the computer to let me take the computers pawn when this occurs?

    • Dave says

      August 7, 2016 at 10:39 pm

      You do need to do anything. If an en passant move is available then you will be able make it.

      Remember that en passant is only possible on the move immediately after your opponent moves their pawn. If you do not take it, the opportunity is lost.

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