Colle System Puzzle (Rated 825): Spot — Hanging Queen

This middlegame puzzle demonstrates how a seemingly dangerous attack can conceal a hanging queen. White’s queen is aggressively placed but vulnerable to a lower-value attacker, creating a decisive tactical opportunity for Black. The key strategic lesson is to compare threats objectively: an attacking piece may be valuable, but capturing the queen changes the material balance immediately. This is a classic example of tactical refutation, where awareness and accurate calculation matter more than blindly continuing an active plan.