Learn How to Use an Intermezzo: Tactical Refutation
This middlegame puzzle comes from the Catalan Opening and shows how a single tactical shot can overturn a seemingly stable position. White’s queen, rook, and king are all under pressure, and Black’s active pieces create a forcing sequence that wins material by exploiting hanging pieces and a relative pin. The key idea is not a flashy attack on the king, but a precise tactical refutation that uses check, tempo, and piece activity to convert dynamic pressure into a decisive material gain.