Alexander Alekhine (White) Puzzle: Use a Pin — Tactics
A discovered attack occurs when one piece moves and uncovers the power of a longer-range piece behind it. In this position, the tactical tension comes from aligned rooks, a pinned knight near the king, and an exposed back rank. The key is to recognize that a seemingly natural capture can change the material balance while preserving pressure against the enemy king. Active rooks and a bishop on a long diagonal make every tempo especially valuable.