London System: Complete Guide

The London System, also called the London Opening, is a setup-based opening for White that opens 1. d4 and develops the dark-squared bishop to f4 early, most often 1. d4 d5 2. Bf4. Instead of memorizing a different theory tree for every Black defense, White aims for the same dependable position against nearly anything: pawns on d4 and e3, the bishop outside the chain on f4, knights to f3 and d2, the bishop to d3, and short castling. Because roughly half of all club opponents answer 1. d4 with 1...d5, you reach your structure in most games and spend study time on plans rather than move orders. That low-maintenance reliability is why the London is one of the most-played openings in online chess while still appearing at the very top.

Two close relatives also get called London openings, and this trainer teaches neither. The Jobava London develops the knight before the bishop, 1. d4 Nf6 2. Nc3 d5 3. Bf4, and plays for a fast e4 or a direct kingside attack, which makes it sharper and gives it its own theory to learn. The Barry Attack heads for the same Bf4 picture with Nf3 and Nc3 against Black’s ...g6 fianchetto. What follows is the classical London Opening with an early Bf4 against 1...d5, the version that reaches the same structure in most of your games.

The signature position appears after 1. d4 d5 2. Bf4, the accelerated move order that plays Bf4 at once. The classical route reaches the same thing via 1. d4 Nf6 2. Nf3 and a later Bf4. From there White follows an almost automatic recipe: e3, c3, Nbd2, Bd3, and O-O, building the c3-d4-e3 pawn triangle that anchors the system. The one branch where this trainer leaves the pure triangle is the early ...Bf5: there White switches to a quick c4 to lever the center and squeeze the queenside, since the bishop has left b7 and the c-file undefended.

Facing the London as Black, the losing plan is to drift, because the setup punishes passive play more reliably than it punishes activity. Counter directly: strike d4 with an early ...c5, point the queen at the b2-pawn the f4-bishop abandoned with ...Qb6, and fight for the e4-square so White’s light-squared bishop on d3 stays quiet. Offering to trade the dark-squared bishops with ...Bd6, or developing ...Bf5 and only then ...Bd6, drains the venom from White’s kingside attacking plans and steers the game toward equality.

Although the Bf4 idea is much older, the opening took its name from the London 1922 tournament, where it answered the hypermodern defenses of the day. For decades it was written off as a quiet club system, but elite players revived it once engines confirmed how hard the structure is to break, and a string of top-level wins by world-championship-level players turned it into one of the most-played first setups online at every rating.

What is the London System in chess?

It is a setup opening for White, not a theory tree: you play 1. d4 and put the dark-squared bishop on f4 early, most often 1. d4 d5 2. Bf4, then build the same position against almost anything Black does. The full recipe is pawns on d4 and e3, the bishop outside the chain on f4, knights to f3 and d2, the bishop to d3 and short castling. Because the moves barely change, the London Opening costs a fraction of the study time of the 2. c4 openings, which is why it is one of the most-played setups in online chess at every rating.

How do you play the London System?

Play 1. d4, answer 1...d5 with 2. Bf4 (or reach it via 1. d4 Nf6 2. Nf3 and a later Bf4), then follow the recipe: e3, c3, Nbd2, Bd3, O-O. That gives you the c3-d4-e3 triangle with the bishop already outside it. From there pick a wing rather than drifting: Ne5 with f4 for a kingside attack, or dxc5 and queenside expansion if Black plays an early ...c5. The main line runs 1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nf3 Bd6, where Black offers to trade your best piece. The popular answer is the quiet 5. Bg3; this trainer teaches the sharper 5. Ne5 and plays for the attack. Two moves you must have a prepared answer to: ...Qb6 hitting the b2-pawn the bishop no longer guards, and an early ...Bf5.

How do you beat the London System?

Do not drift, because the London punishes passive play far more reliably than it punishes activity. The three testing ideas are an early ...c5 to hit d4, ...Qb6 to point the queen at the b2-pawn the f4-bishop abandoned, and a fight for the e4-square so the d3-bishop stays quiet. Offering the dark-squared bishop trade with ...Bd6, or ...Bf5 first and only then ...Bd6, drains most of the venom from White’s kingside plans. All of them are covered move by move here, and Chessigma has a full Black repertoire against it in the Anti-London course.

What is the Jobava London?

A sharper cousin, 1. d4 Nf6 2. Nc3 d5 3. Bf4, where the knight comes out before the bishop. That move order keeps a fast e4 available and aims at a direct kingside attack, so it is more ambitious and asks for its own theory instead of one repeatable setup. This trainer teaches the classical London with an early Bf4 against 1...d5, so treat the Jobava as a separate opening to pick up later rather than a variation of this one.

Is the London System good for beginners?

Yes, and it is one of the best first openings for White. You play almost the same setup against everything, so your study time goes into plans and tactics instead of memorizing forcing lines, and you still reach a sound, familiar position in nearly every game. It does not get outgrown either: grandmasters use it as a low-theory surprise weapon precisely because the structure is so hard to break, and it has appeared in world-championship preparation.