Modern Defense Puzzle (Rated 1497): Win a Pin — Queen's Pawn Game Tactic
This middlegame puzzle comes from a Queen's Pawn Game structure where one piece placement creates a powerful pin on the enemy queen. The key idea is that a pinned piece often cannot move because doing so would expose a more valuable target behind it. In practical terms, that means a seemingly ordinary bishop move can become a forcing tactical shot, especially when the opponent’s king is still vulnerable and development is uneven.