Queen's Gambit Declined Marshall Defense Puzzle (Rated 1066): Deflect — Win the Rook
The queen on b7 is the most dangerous piece on the board, and its line into Black's camp demands attention. This middlegame showcases the deflection theme: striking a pawn with check forces an almost automatic reply, after which the queen veers sideways to grab a rook that suddenly has no defenders. Black's queen is tied to defense, and a pinned knight limits the available resources. The outcome is not a mating net but decisive material gain, with the attack still rolling. One forcing capture redirects the entire defense.