Learn How to Win by Sacrifice: Fork Tactic
This middlegame puzzle shows how a sacrifice can be used to drag the king onto a vulnerable square and create a forcing fork. The key idea is not immediate material gain, but attraction: lure the king or a key defender away so a knight can jump in with tempo. In classical chess, these long tactical sequences often start from active rooks and a weakened king shelter, then finish with a decisive fork that wins material and the attack.