Weak Square Puzzle (Rated 1880): Discover a Fork — Tactical Gain
This middlegame puzzle is built around a discovered attack combined with a fork. White’s queen is already pressuring the kingside, and the key idea is to open a line so a hidden piece can join the attack with tempo. When the position is timed correctly, the opponent’s king and major pieces become vulnerable at once, turning a strong initiative into a decisive material gain. The tactic works because one move changes both the line of attack and the target selection.