Queens Indian Defense Spassky System Puzzle (Rated 1434): Win Material — Crushing Middlegame Tactics

This puzzle is a classic middlegame example of converting space and king safety into a winning tactical sequence. White’s advanced central pawn creates immediate tension, while Black’s loose queenside piece and weakened king cover make tactical details matter more than long-term plans. The key idea is to use a forcing pawn break to open lines, then exploit the fact that one defender is overloaded and another piece becomes vulnerable to a discovered attack. The result is a clean material win rather than a speculative attack.