Efim Geller (White) Puzzle: Mate — Rook Mate
Capturing the defender is a core attacking idea in classical chess. When a defending piece is the only barrier between your heavy pieces and the enemy king, removing it can turn apparent safety into an immediate mating net. In this position, Black’s queen and rook coordinate against a king with limited flight squares. The attack succeeds because each forcing check restricts the king further while preserving the final mating threat.