♔ whiteD02

London System

The London System (1.d4 d5 2.Bf4) develops the bishop to f4 before playing e3, creating a solid and low-theory system. White builds a fortress-like structure that works against almost any Black setup.

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Variations

About the London System

The London System has surged in popularity at all levels. The idea is simple: develop Bf4, e3, Nf3, c3, Bd3, Nbd2, and castle. The bishop goes to f4 before e3 so it's not blocked in. The London works against 1...d5, 1...Nf6, 1...c5, and most other responses, making it an excellent practical choice. While it's not the most ambitious opening, it's very hard to crack.

Key Ideas

  • Bf4 before e3 — the bishop must come out first
  • Build the pyramid: d4-e3-c3 with pieces behind it
  • The typical setup: Nf3, Bd3, Nbd2, O-O, c3
  • Works against almost anything Black plays
  • Simple plans: push e4 or attack on the kingside with Ne5

Related Openings

Queen's GambitTrompowsky AttackCatalan OpeningColle System

Ready to master the London System?

Import this one or your own lines from YouTube, Lichess, or PGN and train with spaced repetition.