Evgeny Alekseev (Black) Puzzle: Discover — Material
A discovered attack occurs when one piece moves away from a line, uncovering an attack from a queen, rook, or bishop behind it. In this position, the central pawn move clears a powerful diagonal or file while creating immediate pressure on vulnerable white pieces. The tactic combines a skewer, an absolute pin, and a trapped knight, turning White’s cramped coordination into a decisive material loss. The key lesson is that a forcing pawn capture can be more powerful than a developing move.