Nimzowitsch Defense El Columpio Defense Puzzle (Rated 1295): Win the Queen — Pin Tactic
This middlegame puzzle centers on a classic pin tactic: one piece is forced to stay in place because moving it would expose a more valuable target behind it. White’s active bishop creates a powerful line against the black queen and king, turning a seemingly ordinary attack into a decisive material win. The position also shows how loose pieces and king safety can combine into a winning combination in classical chess.