Learn How to Discover an Attack: Tactical Refutation
This puzzle shows a classic discovered-attack idea in the middlegame, where a well-timed bishop move opens a line for the queen and creates immediate tactical pressure. The key point is that White’s king is still uncastled, so forcing moves become especially strong. Black does not need a flashy sacrifice; instead, the combination works because the bishop move improves activity, checks the king, and exposes a loose knight and central targets at the same time.