Queens Pawn Game London System Intermediate Puzzle (Rated 1109): Win Material — Tactical Refutation

This middlegame puzzle comes from the Queen’s Pawn Game, London System, where activity and king safety outweigh static material balance. White’s pieces are well placed, but Black can exploit the exposed king and loose coordination with a forcing queen check that creates a tactical refutation. The key idea is not a flashy mate, but a sequence that wins material by using checks, pins, and a trapped piece to break White’s position apart.