Queens Pawn Game London System Sacrifice in Chess

In the queens pawn game london system sacrifice, White uses the London System’s queenside setup (typically 1.d4, 2.Bf4 and often e3) and then deliberately sacrifices material to break Black’s structure or win tempo. The defining feature is that the sacrifice is tied to the London pieces’ coordination—especially the bishop on f4 and the queen/knight routes that target central or kingside weaknesses.