Have you ever wondered why en passant exists, or if someone just made it up to confuse new players?
Back in 15th-century Europe, chess rule-makers wanted to speed up the opening phase of the game, so they gave pawns the ability to advance two squares on their very first move. However, this new rule created an immediate problem: a pawn could now completely skip past an enemy pawn's line of control without giving the opponent any chance to capture it.
To fix this loophole, rule-makers introduced en passant (French for "in passing"). The rule ensures that if an opponent tries to slide past your pawn using that two-square jump, you retain a single-turn window to capture them diagonally anyway, exactly as if they had only moved forward one square.
submitted by /u/CrikeyMikey09[link] [comments]