ECO A48

London System

London System is a chess opening classified under ECO A48. Its defining line here is 1. d4 Nf6 2. Nf3 g6 3. Bf4.

London System — board position♜♞♝♛♚♝♜♟♟♟♟♟♟♟♞♟♟♝♞♟♟♟♟♟♟♟♜♞♛♚♝♜

1. d4 Nf6 2. Nf3 g6 3. Bf4

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The diagram shows the position after 1. d4 Nf6 2. Nf3 g6 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.

Other catalogued lines with this name

  • A48: 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3
  • A48: 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6