Openings Against D4 Puzzle (Rated 936): Refute — Tactic

This middlegame position is decided by recognizing that material advantage does not guarantee safety. White’s rook has become tactically vulnerable, and Black can challenge it with a forcing sequence. The key idea is a tactical refutation: an apparently active piece is exposed to a lower-value attacker, while the resulting exchanges leave Black with a decisive material edge. Look beyond immediate threats and check whether your opponent’s last move has left a valuable piece hanging.