Learn How to Win Material: Discovered Attack
This puzzle is a classic middlegame tactical refutation built around king safety and piece overload. Black’s attack works because the white king is vulnerable to a forcing capture on the kingside, while the queen and rook coordination leaves White unable to defend everything at once. The key idea is that a single forcing move can expose the king and simultaneously win the queen or another major piece, turning a seemingly balanced position into a decisive material gain.