Trapped Knight Puzzle (Rated 1161): Win a Trapped Piece — Decisive Material Gain

This classical chess puzzle is a clean example of a trapped piece tactic in the middlegame. White’s active queen and rook coordination create pressure on the back rank and along the a-file, while Black’s pieces are overloaded and short on squares. The key idea is not a flashy mating attack, but a forcing sequence that wins material by exploiting pins, skewers, and the lack of safe retreats for the trapped minor pieces.