Russian Game Puzzle (Rated 1165): Win Material — Tactical Refutation

This middlegame puzzle comes from the Russian Game, specifically a Three Knights Game structure, where king safety and piece activity outweigh raw material. Black’s attack is built around a forcing tactical sequence that drags the white king’s shelter apart and creates a direct threat against the queen and rook. The key idea is a discovered check that also wins time by attacking multiple pieces at once, turning a seemingly balanced position into a decisive material advantage.