Richard Teichmann (Black) Puzzle: Spot a Pin — Win

A pin is a tactical pattern in which a valuable piece cannot move because doing so would expose a more important piece behind it, usually the king. In this position, Black can use rook activity to restrict the white queen and create a powerful skewer. The key idea is to recognize that the queen is not merely attacked: its movement is limited by the king’s exposure. This turns pressure on the file into a decisive tactical refutation.