Learn How to Spot a Mate in 1: Pin Tactic
This middlegame puzzle is a classic example of how a pin can turn into a forced mate in one. The key idea is that a pinned piece cannot help defend the king, so a seemingly ordinary tactical move becomes decisive. In positions like this, always scan the enemy king’s shelter, the alignment of major pieces, and any knight or bishop that can jump into the attack. When the king is boxed in, even one forcing move can end the game immediately.