Alekhine Defense Welling Variation Puzzle (Rated 1231): Win Material — Discovered Attack

This middlegame puzzle shows a classic discovered attack: one move opens a line for a bishop while also creating a direct tactical threat against the enemy king and loose pieces. White’s advanced pawn structure and active bishops give strong initiative, and Black’s king safety is the main weakness. The key idea is to use a forcing move that changes the board immediately, exposing a vulnerable queen-side and king-side coordination problem at the same time.