Queens Gambit Declined Albin Countergambit Fork Puzzle (Rated 1052): Win with a Fork — Decisive Endgame Tactic

This chess endgame puzzle shows how a single active knight can change the evaluation immediately. Black’s pieces coordinate against the white king and the loose rook, creating a forcing tactical sequence that wins material. The key idea is a fork: one move attacks multiple high-value targets at once, while also using the king’s exposed placement to limit responses. In practical classical chess, these short tactics often decide otherwise balanced endgames.