Modern Defense Mongredien Defense En Passant in Chess

The Modern Defense Mongredien Defense En Passant is a pawn-structure motif arising from the Modern Defense setup where White’s central pawn advances and Black can capture en passant immediately. The defining feature is the moment a pawn moves two squares and lands adjacent to an enemy pawn, creating a one-move en-passant capture opportunity. In this line, the Mongredien-style play often aims to challenge the center while keeping pieces flexible.