Learn How to Spot a Pin: Slav Defense Tactical Shot
This puzzle comes from the Slav Defense and shows how a short tactical sequence can punish loose coordination in the opening. The key idea is a pin that turns into a skewer-like attack on the queen, forcing a response that wins material or gives a decisive check. Even in a seemingly balanced middlegame, active pieces and king safety can outweigh material. The lesson is to watch for undefended major pieces and lines that suddenly open against the king.