London System
1.d4 d5 2.Nf3 Nf6 3.Bf4
The London System is a solid, low-maintenance setup for White built around an early Bf4. Instead of memorizing long forcing lines, you learn a small number of reliable ideas you can play against almost anything Black tries.
Mainline
1.d4 d5 2.Nf3 Nf6 3.Bf4 c5 4.e3 Nc6 5.Nbd2 e6 6.c3 Bd6 7.Bg3 O-O 8.Bd3
London System vs ...c5 (main line)
1.d4 d5 2.Nf3 Nf6 3.Bf4 c5 4.e3 Nc6 5.c3 Qb6
Black's most testing setup: hit d4 with ...c5 and probe b2 with ...Qb6. White's modern answer is to let the queen sit there and play Qb3 or Nbd2-b3, keeping the structure and finishing development. Knowing this exact sequence is what separates a London player from someone just pushing pieces to the same squares.
London System vs the King's Indian setup (...g6)
1.d4 Nf6 2.Nf3 g6 3.Bf4 Bg7 4.e3 O-O 5.h3 d6
Against a kingside fianchetto the bishop on f4 already eyes the weakened dark squares. White plays h3 to give the bishop a retreat, castles, and expands with e4 or c4 depending on Black's break. Solid, low-theory, and it keeps the King's Indian player out of their own preparation.
Jobava London (2.Nc3 and 3.Bf4)
1.d4 Nf6 2.Nc3 d5 3.Bf4 e6 4.e3 Bd6 5.Bg3
The aggressive cousin of the classical London: the knight goes to c3 instead of d2, ready for Nb5 tricks and a quick f3-e4 push. It has become a favorite at every level because it keeps the London's simplicity while playing for a real attack.
London System vs ...Bf5 (the mirror)
1.d4 d5 2.Nf3 Nf6 3.Bf4 Bf5 4.e3 e6 5.c4 c6
Black copies the setup and develops the bishop outside the pawn chain. White breaks the symmetry with c4 and pressure on the queenside — the standard recipe against any mirror system: be the first to create a concrete threat.
Accelerated London (2.Bf4)
1.d4 d5 2.Bf4 Nf6 3.e3 e6 4.Nf3 Bd6
Playing Bf4 before Nf3 dodges the ...Bf5 and ...Qb6 lines, at the cost of allowing ...c5 with tempo ideas. A useful move-order tool once you know which structures you want to steer into.
How Black should meet the London
1.d4 d5 2.Nf3 Nf6 3.Bf4 e6 4.e3 Bd6 5.Bg3 O-O
If you are on the receiving end, the most reliable plan is to trade the strong dark-squared bishop with ...Bd6 and then play ...c5 or ...Ne4 at the right moment. Handled correctly the London gives Black an easy game — the trick is knowing the trade timing.
Study the Beat the London System course
Key ideas
- A flexible d4 + Bf4 setup you can reach against most Black replies.
- Rock-solid pawn structure that is hard to break down.
- Clear middlegame plans (piece placement, kingside expansion) rather than heavy theory.
- Ideal for players who want to spend time improving, not memorizing.
Typical plans and structures
The pieces have standing orders: bishop to f4 (retreating to g3 when hit), pawns to e3 and c3, knights to d2 and f3, bishop to d3, castle short. From there White chooses between the central e3-e4 break, the queenside b4 clamp, and the classic kingside attack with Ne5, f4 and Qf3-h3 against a castled king. Because the structure is so stable, mistakes rarely get punished severely — while Black must still solve real problems, especially against the Ne5 attacking setup.
Who should play it
Club and improving players who want a dependable White opening with a low theory burden and clear plans.
Study the London System move by move
The first 3 lines of the interactive course, exactly as a signed-out visitor can play them — each move with the coaching note shown on the board.
Line 1 — punishing a blunder
1.d4 We start with a solid central pawn. 1...d5 Black does the same. 2.Nf3 We develop our knight toward the center. 2...Nf6 Black mirrors us. 3.Bf4 We bring out our bishop to support the setup. 3...c5 Black quickly challenges the center. 4.e3 We defend the pawn and prepare to develop. 4...Nc6 More pressure on the center. 5.Nbd2 This knight supports the center and keeps our structure flexible. 5...e6 Solid, but blocks the light square bishop. 6.c3 We build a strong center and pawn triangle. 6...Nh5 Black plays actively, hitting our bishop. 7.Bg5 We attack the queen. 7...f6 Black hits our bishop. 8.Bh4 We retreat and keep pressure. 8...cxd4 Black trades in the center. 9.cxd4 We recapture and hold the center. 9...Be7 Black prepares to castle. 10.Bd3 We develop and eye key squares. 10...O-O Black castles. 11.g4 We challenge the knight. 11...g5 Black defends actively. 12.Qb1 We activate the queen for kingside attack. 12...gxh4?? Black takes but opens their king. 13.Bxh7+ We start the attack deep in enemy lines. 13...Kh8 King steps aside. 14.Qg6! Queen joins the attack. 14...Ng7 Black blocks and defends. 15.Qh6 We threaten mate. 15...Rf7 Black defends. 16.Bg6+ We check and force movement. 16...Kg8 King steps aside. 17.Qh7+ Another strong check. 17...Kf8 Black tries to escape. 18.Qh8# We deliver checkmate.
Line 2 — the main line
1.d4 We start with a solid central pawn. 1...d5 Black does the same. 2.Nf3 We develop our knight toward the center. 2...Nf6 Black mirrors us. 3.Bf4 We bring out our bishop to support the setup. 3...c5 Black quickly challenges the center. 4.e3 We defend the pawn and prepare to develop. 4...Nc6 More pressure on the center. 5.Nbd2 This knight supports the center and keeps our structure flexible. 5...e6 Solid, but blocks the light square bishop. 6.c3 We build a strong center and pawn triangle. 6...Bd6 Black wants to trade our bishop. 7.Bg3 We step back and stay ready to recapture. 7...O-O Black castles. 8.Bd3 Our bishop helps control the center. 8...b6 Black gets ready to develop. 9.e4 We strike in the center. 9...Be7 Black retreats. 10.e5 We push and kick the knight. 10...Nh5 Black moves awkwardly. 11.Ng5 We launch tactics with a possible knight sac. 11...Bxg5 Black takes. 12.Qxh5 We recapture with tempo and threaten mate. 12...g6 Blocking the checkmate threat. 13.Qe2 We retreat for now, but prepare to launch a kingside attack with h2 h4-h5. 13...cxd4 Our opponent does not miss the chance to take our central pawn. 14.h4 We push forward with our kingside attack. 14...Be7 Our opponent brings the bishop back (rather than trading it) because it's a valuable defender. 15.h5 Although we are a pawn down, we have a significant advantage due to our kingside attack.
Line 3 — against an inaccuracy
1.d4 We start with a solid central pawn. 1...d5 Black does the same. 2.Nf3 We develop our knight toward the center. 2...Nf6 Black mirrors us. 3.Bf4 We bring out our bishop to support the setup. 3...c5 Black quickly challenges the center. 4.e3 We defend the pawn and prepare to develop. 4...Nc6 More pressure on the center. 5.Nbd2 This knight supports the center and keeps our structure flexible. 5...e6 Solid, but blocks the light square bishop. 6.c3 We build a strong center and pawn triangle. 6...Bd6 Black wants to trade our bishop. 7.Bg3 We step back and stay ready to recapture. 7...O-O Black castles. 8.Bd3 Our bishop helps control the center. 8...b6 Black gets ready to develop. 9.e4 We strike in the center. 9...Be7 Black retreats. 10.e5 We push and kick the knight. 10...Nh5 Black moves awkwardly. 11.Ng5 We launch tactics with a possible knight sac. 11...Bxg5 Black takes. 12.Qxh5 We recapture with tempo and threaten mate. 12...Bxd2+? This is a mistake. Our opponent takes away our castling rights, but gives up their valuable dark squared bishop. 13.Kxd2 Our king is perfectly safe, because the center is relatively closed and we are the ones with the attack and the initiative anyway. 13...g6 Black blocks the queen's path. 14.Qh6 We keep pressure near the king. 14...f5 Black tries to close the kingside. 15.Bh4 Our bishop dominates the dark squares.
The free preview ends here — continue with all 8 lines in the interactive course, with instant feedback on every move you play.
Frequently asked questions
Why is the London System so popular?
It combines near-universal applicability with genuine soundness: one setup handles most Black defenses, the theory burden is tiny, and even world champions — Magnus Carlsen included — have used it as a practical weapon. You invest your study time in plans, not memorization.
Is the London System too passive to win with?
No — that reputation is outdated. The Ne5-f4 attacking plan, the e4 break and the queenside space grab all give White real winning attempts, and modern grandmaster practice (Gata Kamsky's career, Carlsen's rapid games) shows the London scoring at the highest level.
What is the best move order for the London System?
Both main move orders are respectable: the classical 2.Nf3 followed by 3.Bf4 — the order this course is built on — and the modern immediate 2.Bf4. The classical order keeps development flexible and reaches the same core setup while sidestepping some early ...c5 and ...Qb6 tries.
Learn the London System with AI feedback
This page pairs the guide above with an interactive ChessMind AI course: a GM-authored repertoire you study move by move on a real board, then practice against a human-like chess AI opponent with instant feedback and spaced-repetition review, so the key positions actually stick. Start learning, jump straight into practice, or browse all opening courses.
New to a concept? Every term is defined in the chess terms glossary.