Queens Indian Defense Spassky System Puzzle (Rated 1374): Win Material — Crushing Middlegame Tactic
This middlegame puzzle shows how a single tactical shot can overturn a material edge by exploiting loose pieces and king safety. Black’s active queen, bishop, and rook coordination create pressure against White’s king and central pieces, while White’s advanced knight becomes a target. The key idea is to notice when a defended-looking piece is actually overloaded or pinned, allowing a forcing sequence that wins material and leaves the opponent’s position collapsing.