Center Game Accepted Puzzle (Rated 1461): Win Material — Tactical Refutation

This Center Game Accepted puzzle is a classic example of a crushing defensive move idea in the middlegame. White’s queen and bishop work together against an exposed black king and loose kingside pieces, while Black’s queen is active but overextended. The key strategic point is that active defense can fail when it leaves a piece hanging and allows a tactical refutation. White must use coordination, not greed, to convert the pressure into a clear material gain.