D4 Openings For Black Puzzle (Rated 1544): Pin — Material Gain
In this King’s Indian Defense middlegame, the key idea is to recognize how a pin and an overloaded defender can combine into a tactical refutation. One side has invested heavily in active piece placement near the enemy king, while a queen is responsible for defending several important pieces and squares. When a defender is forced to choose between multiple threats, a seemingly vulnerable attacker may actually be protected by a deeper tactical resource, leading to a decisive material gain.