Hungarian Opening En Passant in Chess

The Hungarian Opening En Passant is an en-passant capture that can arise from the pawn structure typical of the Hungarian Opening. In many lines, Black plays …c5 and White has a pawn on d5 (or vice versa), so when the opponent advances a pawn two squares and passes an adjacent pawn, the capture is available immediately. The defining feature is the adjacent pawn placement that makes an en-passant capture legal right after the double-step.