French Defense Advance Variation Skewer in Chess

In the French Defense Advance Variation, the skewer motif is a tactic where a piece attacks one target and forces it to line up with a more valuable piece behind it. A defining feature is the Advance pawn on d5 (after 1.e4 e6 2.d4 d5 3.e5), which often opens lines for pieces to attack along ranks/files. In many positions, White’s or Black’s active pieces can use that open line to “push through” and win material by skewering the back piece.