Learn How to Find Intermezzo: Tactical Refutation
This puzzle comes from the Slav Defense Exchange Variation and shows a classic intermezzo idea: a forcing in-between move that changes the evaluation immediately. White’s queen and knight look active, but Black has a tactical resource that creates a check, wins time, and exposes the queen to attack. The key lesson is that active pieces can still be vulnerable when the king is unsafe and the opponent has a forcing sequence with check and tempo.