exd4 Puzzle (Rated 1500): Fork — Rook Attack

An overloaded defender is a piece forced to protect more than one important target. When that defender is tied down, a forcing check can create a tactical fork, attack the king, and expose a second valuable piece. In this middlegame puzzle, Black relies on active rook placement and White’s exposed king to generate decisive counterplay. The key lesson is that material advantage does not guarantee safety when king exposure and piece coordination allow a tactical refutation.