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London System

A solid setup in four moves: Bf4, e3, c3, Bd3 — and a plan that almost always works

7 Chapters · 27 exercises

Origin

The name comes from the London 1922 tournament, where the Bf4 setup was used by leading players of the day, Capablanca among them. For decades it was seen as a tame club system, until Gata Kamsky rehabilitated it at top level and Magnus Carlsen and others adopted it in critical games. The aggressive 2.Nc3 version was popularized by Georgian GM Baadur Jobava and now bears his name.

Why it works

White sets up almost the same structure every game — pawns on d4, e3 and c3, the bishop developed outside the chain on f4, bishop to d3, knights on f3 and d2 — which drastically cuts the theory to memorize. The f4 bishop eyes the b8-h2 diagonal and watches e5 and c7, while the c3 pawn supports d4 without locking in the queen's bishop, the classic flaw of other e3 systems. From there two clear plans exist: Ne5 with f4 and a kingside attack, or Qb3/Rc1 pressing b7 and c7. Since White is essentially never worse out of the opening, the system works both for blitz and for long strategic games.

In its favour

  • +The same setup works against nearly everything: Slav, King's Indian, Dutch or a solid ...e6.
  • +The bishop leaves for f4 before e3, solving the bad-bishop problem that plagues other d4 pawn systems.
  • +Concrete, repeatable plans: Ne5 followed by f4 and attack, or Qb3 and Rc1 hitting b7/c7.
  • +Very low theoretical risk — it is hard for White to come out worse in the first fifteen moves.

The price

  • −Against accurate defense the edge is minimal; playing for a win versus a prepared opponent takes patience.
  • −...Qb6 hits b2 while the f4 bishop is unprotected; you must know the exact answers (Qb3, Nc3 or Bxb8) or the position falls apart.
  • −Blows like ...c5 with ...Nc6 hitting d4, or ...Bf5 neutralizing the d3 bishop, strip the position of its bite.
  • −Pattern repetition can breed autopilot: playing the London without thinking leads to equal, idealess positions.

Chapters

  1. 1The Basic SetupHere you learn the move order — d4, Bf4, e3, c3, Bd3, Nf3 — and why the bishop must leave before e3. You also see the accelerated 2.Bf4 and the case where Black copies with ...Bf5.0/5
  2. 2Against Solid Structures: ...c6 and ...e6Black builds a wall with pawns on d5 and c6 (or e6) and offers no immediate targets. You learn to press b7 with Qb3, to trade at the right moment, and to handle ...Bf5 and ...Bd6 challenging the f4 bishop.0/5
  3. 3Against the Fianchetto and the DutchWhen Black plays ...g6 (King's Indian or Grünfeld) the f4 bishop changes role: it watches e5 and supports h4-h5. Against ...f5 you see why the London is a natural antidote, with the bishop already out and the dark squares weakened.0/4
  4. 4When Black Hits d4 with ...c5The ...c5 break is the most direct way to question White's center. You choose between keeping the tension, playing c3 to hold d4, or accepting an open structure where the f4 and d3 bishops aim at Black's king.0/2
  5. 5The Attacking Plans: Ne5, f4 and Long CastlingNow the setup is familiar and the focus shifts to the plan: knight to e5 backed by f4, the Nb1-d2-f1-g3 maneuver to reinforce the kingside, and the sharp version with queenside castling and an h- and g-pawn storm.0/5
  6. 6The Jobava London (2.Nc3)The aggressive version: the knight goes to c3 instead of the c3 pawn, unlocking Nb5 ideas against c7 and e5-e6 on the kingside. It is less solid and more tactical — you need answers to ...d5 with ...c5, to the fianchetto and to the Dutch.0/4
  7. 7The ...Qb6 ProblemThe system's most annoying test: Black's queen hits b2 while the f4 bishop hangs. Here you learn the two top-level answers — the Qb3 counter and the Mertens Attack — and why giving up b2 can be worth it.0/2
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