Caro Kann Defense Endgame Offer Sacrifice Puzzle (Rated 1452): Boden Mate — Sacrifice
A Boden mate is a bishop-based mating pattern in which diagonals work together to trap the king, often with its own pieces limiting escape squares. This middlegame puzzle adds a forcing sacrifice: Black uses pressure on a pinned queenside pawn to open the decisive lines. The material imbalance is less important than king safety and piece coordination. The key idea is to recognize that a seemingly defended pawn may be unable to move without exposing the king.