Queens Gambit Declined Semi Tarrasch Defense Puzzle (Rated 988): Win with a Discovered Check — Queens Gambit Declined
This middlegame puzzle comes from the Queens Gambit Declined and shows how active pieces can turn a quiet-looking position into a decisive tactical gain. Black’s bishop and rook coordinate to create a discovered attack against White’s exposed king, which is still stuck in the center. The key idea is not a slow buildup, but a forcing sequence that uses check to gain time and keep White’s pieces from coordinating. In classical chess, this kind of tactical pressure often decides the game before any endgame is reached.