Learn How to Defend: Tactical Refutation
This puzzle comes from the Italian Game Blackburne-Kostic Gambit and shows how a defensive move can turn a dangerous attack into a winning position. White has active pieces and direct pressure on the king, but Black can respond with a forcing central break that changes the character of the position. The key idea is to meet threats with counterplay, not passively defend. In classical chess, opening tactics often hinge on whether the center can be opened at the right moment.