French Defense Exchange Variation Beginner Puzzle (Rated 810): Win Material — Tactical Refutation

This puzzle comes from the French Defense Exchange Variation and shows how a seemingly calm middlegame can hide a forcing tactical refutation. The key idea is that active pieces on open files can create a decisive sequence when the enemy queen and rook are aligned. Here, the position rewards calculation over general strategy: once the forcing move lands, White’s king safety and piece coordination collapse, and Black converts activity into a large material gain.