Modern Defense Randspringer Variation Puzzle (Rated 1043): Win with a Pin — Decisive Material Gain
This middlegame puzzle is built around a powerful pin that turns a seemingly active piece into a tactical target. Once the pinned piece is forced to move or exchange, the position collapses into a favorable simplification for the side with the initiative. The key idea is not a flashy checkmate, but a decisive material gain created by piece coordination, pressure on the queen, and the inability of the defender to untangle cleanly.