Learn How to Win a Trapped Piece: London System
This London System puzzle shows how a quiet-looking middlegame can hide a decisive tactical refutation. White’s queenside pressure and space advantage create a situation where Black’s queen becomes overextended and vulnerable to a forcing sequence. The key idea is not a flashy attack on the king, but the practical gain of material through a trapped piece motif. In classical chess, these small tactical details often decide the game before any endgame is reached.