Kings Indian Defense Steiner Attack Puzzle (Rated 1055): Exploit a Pin — Decisive Material Gain

This puzzle is a classic middlegame pin tactic where one active bishop creates a direct tactical problem around the enemy king. The key idea is that a pinned queen or piece cannot move freely because doing so would expose a more valuable target. In positions like this, the strongest move often comes from using the pin to force a capture, simplify the defense, and convert activity into a winning material edge. The attack works because king safety is already compromised.