Learn How to Use an Intermezzo: Winning Material
This middlegame puzzle is a classic example of an intermezzo: instead of taking the obvious recapture right away, Black inserts a forcing check that changes the position first. That extra tempo matters because it exposes White’s king, wins a key piece, and leaves White unable to keep everything defended. In practical classical chess, these in-between moves often decide whether a tactic is merely equal or becomes a decisive material gain.