Regaining Material Puzzle: Unmask — Win Material
A discovered attack occurs when one piece moves away from a line, uncovering a bishop, rook, or queen behind it. The moving piece can create an immediate threat while the revealed attacker targets a valuable enemy piece. In this middlegame, the knight’s departure exposes the fianchetto bishop’s line toward the opposing queen. The forcing check limits the defender’s choices, allowing White to recover material after the tactical sequence.