Zukertort Opening Herrstrom Gambit Puzzle (Rated 1373): Win Material — Crushing Opening Tactic

This opening puzzle shows a classic crushing tactic in the Zukertort Opening: White’s queen is active, but the king is still in the center and key pieces are loose. Black can exploit the alignment of the queen, knight, and king with a forcing sequence that wins material and breaks White’s coordination. The idea is not a slow middlegame plan, but a direct tactical refutation based on checks, discovered pressure, and a vulnerable back rank and center.