Pin Advanced Puzzle (Rated 1151): Force Mate — Pin Tactic

This puzzle demonstrates how a pin can become a mating weapon when the enemy king is exposed. White’s bishop pair controls important diagonals, while the pinned g-pawn cannot safely move because it shields the king. The queen then exploits the restricted escape squares and the overloaded defenders around the kingside. The key strategic idea is coercion: force the king toward a vulnerable square, preserve the pin, and finish with a coordinated queen-and-bishop attack.