Nimzo Indian Defense En Passant in Chess

In the Nimzo Indian Defense, “En Passant” is a special pawn capture that becomes legal only immediately after an opponent’s pawn advances two squares and lands beside your pawn. The defining feature is the Nimzo move order (typically …Nf6, …e6, …Bb4) that leads to a pawn setup where an en-passant capture can occur on the next move. For example, after White plays d4 and Black plays …e6, the resulting pawn geometry can create the exact timing window for en-passant.