Queens Pawn Game Accelerated London System Trapped Piece Puzzle (Rated 1253): Trap the Queen — Decisive Material Gain
This middlegame puzzle is about exploiting a trapped queen and converting it into decisive material gain. White’s heavy pieces coordinate on the h-file and g-file to create a direct tactical problem for Black’s queen, which has limited escape squares and is tied to the safety of the king. The key idea is not a long attack, but a forcing sequence that wins the queen by removing its support and leaving it overloaded.