En Passant

En Passant is a unique way that pawns can capture other pawns. When a pawn makes a two-hex move that passes a hex protected by an opponent's pawn, the pawn that was passed can capture the passing pawn "en passant" by moving to the hex that was passed, then removing the passing pawn from the chess board. (See two examples below.)

drawing of the 9-pawn board showing en passant capture
Top: The black pawn at i7 advances two hexes to i5, passing a hex protected by the white pawn at h6.
Bottom: The white pawn at h6 captures the black pawn en passant by moving to the passed hex then removing the captured pawn from the chess board.
drawing of the 9-pawn board showing another example of en passant capture
Top: The black pawn at i7 advances two hexes to g5, passing a hex protected by two white pawns at g6 and i5.
Bottom: The white pawn at i5 captures the black pawn en passant by moving to the passed hex then removing the captured pawn from the chess board.