Vienna Game Beginner Puzzle (Rated 1387): Win Material — Tactical Refutation

This Vienna Game puzzle shows a classic middlegame tactical refutation where an active bishop is used to punish an overextended piece. The key idea is to notice when a seemingly strong central piece is actually vulnerable to a direct capture because it is undefended or can be chased into a worse square. In positions like this, calculation matters more than general plans: one accurate tactical sequence can convert a small edge into decisive material gain.