English Opening Agincourt Defense Beginner Puzzle (Rated 1153): Exploit Discovered Attack — Tactical Refutation

This middlegame puzzle comes from the English Opening and shows how a discovered attack can turn a stable-looking position into a tactical refutation. Black’s pieces are coordinated around White’s king and key defenders, so one forcing move can open lines, win material, and leave White’s position collapsing. The idea is not a flashy mate, but a decisive sequence that exploits king safety, piece alignment, and loose defenders to gain a large material edge.