Philidor Defense Lopez Countergambit Fork Puzzle (Rated 1233): Checkmate with Bishop and Knight — Mate in 2
This middlegame puzzle is a classic example of a forcing mating net built around king safety. White’s pieces coordinate to overload the defender and exploit the weakened dark squares around the enemy king. The key idea is to use a forcing check that drags a defender into an awkward square, after which the follow-up attack becomes unavoidable. Patterns like this often appear in classical chess, where active bishops and knights work together to create a direct mate threat.