Blackmar Diemer Gambit Accepted Discovered Attack Intermediate Puzzle (Rated 1068): Spot a Discovered Attack — Mate in 2
This middlegame puzzle from the Blackmar-Diemer Gambit Accepted shows how a discovered attack can turn active pieces into a mating net. White’s pieces are already aimed at the enemy king, and the key idea is to use a forcing check that opens lines for the queen. The position is a classic example of coordination: one piece gives check, another becomes the hidden finisher, and Black’s king has no safe escape squares once the defender is removed.