Queen's Pawn Game: London System
Queen's Pawn Game: London System is a chess opening classified under ECO D02. Its defining line here is 1. d4 d5 2. Nf3 Nf6 3. Bf4.
1. d4 d5 2. Nf3 Nf6 3. Bf4
The diagram shows the position after 1. d4 d5 2. Nf3 Nf6 3. Bf4. Play through it move by move in the interactive explorer.
Opening name, ECO code, and main line come from the Lichess open chess openings dataset.