Kadas Opening Pin Puzzle (Rated 1710): Win With a Discovered Attack — Chess Puzzle with Theory & Hints

This middlegame puzzle is a classic example of tactical refutation built around a discovered attack and a long-range pin. Black’s active queen and knight coordinate to overload White’s king position and queen, creating a forcing sequence that wins material. The key idea is that one piece can move with tempo, uncovering a stronger attack behind it. In positions like this, activity matters more than static material, and the side with the initiative can convert quickly.