Learn How to Use a Discovered Attack: Tactical Refutation
This puzzle comes from a classical chess middlegame where one forcing move creates a discovered attack and check at the same time. The key idea is that a piece can move with tempo, opening a line for a stronger attacker while also exposing a vulnerable target. Here, king safety is the dominant factor: the opponent’s king is under pressure, and a trapped, hanging piece makes the tactic work. The position rewards accurate calculation over general material counting.