Learn How to Win Material: Fork Tactic
This French Defense Advance Variation puzzle is a classic middlegame example of tactical refutation through a fork. Black’s active knight creates a forcing check that drags the white king into an awkward square, while also setting up a decisive attack on a loose rook. The key idea is that a checking move can do more than give check: it can also improve piece coordination and win material by exploiting a hanging piece and a vulnerable back rank-like king placement.