Learn How to Use a Long Pin: Chess Endgame Tactic
This chess endgame puzzle shows how a long pin can turn a seemingly active rook and queen into a forced tactical net. Even with material close to balanced, king safety can outweigh everything else when the enemy king is exposed and the back rank or file lines are open. The key idea is to use a forcing check to drag the king into a worse square, then keep the pressure with a second forcing move that limits escape squares and piece coordination.