Slav Defense Soultanbeieff Variation Puzzle (Rated 1149): Skewer — Crushing Middlegame Tactic

This middlegame puzzle is built around a short skewer motif: a higher-value piece is forced onto a line where it becomes vulnerable, and the piece behind it is exposed. White’s active queen and bishop create strong pressure, but Black has a tactical resource that turns the tables by attacking the queen with tempo and uncovering a stronger target behind it. The key idea is not a mating attack, but a decisive material gain through tactical geometry and piece coordination.