En passant
Special pawn move in chess / From Wikipedia, the free encyclopedia
This article is about the move in chess. For other uses, see En passant (disambiguation).
In chess, en passant (French: [ɑ̃ pasɑ̃], lit. "in passing") describes the capture by a pawn of an enemy pawn on the same rank and an adjacent file that has just made an initial two-square advance.[2][3] This is an exception or special case in the rules of chess. The capturing pawn moves to the square that the enemy pawn passed over, as if the enemy pawn had advanced only one square. The rule ensures that a pawn cannot use its two-square move to safely skip past an enemy pawn.
Capturing en passant is permitted only on the turn immediately after the two-square advance; it cannot be done on a later turn.[4] The capturing move is sometimes notated by appending the abbreviation e.p.
This article uses algebraic notation to describe chess moves.