Vladimir Kramnik (Black) Puzzle: Win a Trade — Pins
A pin becomes especially powerful when the pinned piece is also overloaded with defensive duties. Here, Black’s active queen and knight create intense pressure around the white king, while a rook cannot safely escape because moving it would expose a more valuable target. The winning idea is a tactical trade: force an exchange on a protected square, then use the resulting alignment to collect material. This is a middlegame lesson in converting initiative into a decisive material gain.