Learn How to Win a Pin: Decisive Material Gain
This middlegame puzzle shows how a strong pin can turn into a decisive material gain. White’s rook activity on the open file creates pressure against the black bishop, which is tied to the king’s position and cannot simply move away. When a piece is pinned to a more valuable target, even a seemingly modest rook move can become tactical. The key idea is to use alignment, force the king into a passive square, and then win the pinned piece cleanly.