Learn How to Trap a Piece: Winning Material
This middlegame puzzle from the Scotch Game shows how a seemingly active bishop can become a tactical target. Black’s pressure works because White’s king is still in the center and key pieces are awkwardly placed, so the bishop can invade and create a winning material sequence. The idea is not a flashy mating attack, but a practical conversion: use activity, loose pieces, and king safety to force the opponent into a position where a major piece is trapped and cannot escape.