French Defense Tarrasch Variation Puzzle (Rated 1235): Win Material — Skewer
In a skewer the attacker hits a valuable piece in front and the cheaper target behind it. Here White's queen stares at Black's knight with a pawn standing behind it, while White's own knight on the sixth rank hangs to a pawn — both sides hold loose pieces. The side to move ignores the surface threat and strikes on the open d-file, trading rooks and recapturing with the knight. What looked like a lost piece is the tip of a decisive material gain.