Sicilian Defense Delayed Alapin Puzzle (Rated 1134): Exploit a Discovered Attack — Tactical Refutation
This middlegame puzzle shows how a discovered attack can turn a seemingly active queen into a tactical liability. White’s bishop on c4 is tied to the black queen, while the black king’s shelter is weakened by the pressure on f7. The key idea is to use the bishop’s line to force a response, then let the queen join the attack against the exposed black queen and king. It is a classic example of tactical refutation in a sharp classical chess position.