French Defense Schlechter Variation Puzzle (Rated 1424): Win Material — Tactical Refutation

This chess puzzle is a classic middlegame example of tactical refutation, where one accurate move turns a slightly awkward position into a decisive material edge. The key idea is to notice when an active piece can be captured only at the cost of a larger loss elsewhere. In classical chess, these moments often arise from hanging pieces, loose queens, and skewer-like geometry that makes a seemingly strong move collapse under calculation.