Nimzo Larsen Attack Trapped Piece Intermediate Puzzle (Rated 1336): Win Material — Trapped Piece Tactics

This middlegame puzzle shows how a queen can become the engine of a decisive material win when the opponent’s pieces are poorly coordinated. White’s queen and bishop pressure the king side and the back rank, but Black can turn the tables by exploiting an overloaded defender and a trapped rook. The key idea is not a mating attack, but a forcing tactical sequence that wins heavy material and leaves White’s position collapsing. It is a classic example of a long middlegame sacrifice leading to a clear advantage.