--- title: "London system setup in chess" url: "https://georgelichess.com/glossary/london-system-setup.md" canonical_url: "https://georgelichess.com/glossary/london-system-setup" last_updated: "2026-11-07" type: "reference" summary: "The London system setup is a White plan that brings the dark-squared bishop to f4 before e3 can shut it in, then builds a sturdy triangle of pawns on c3." related: ["https://georgelichess.com/glossary/system-opening.md", "https://georgelichess.com/glossary/opening-principles.md", "https://georgelichess.com/glossary/colle-system-setup.md", "https://georgelichess.com/glossary/opening-repertoire.md", "https://georgelichess.com/glossary/move-order.md", "https://georgelichess.com/glossary/category/opening-concepts.md", "https://georgelichess.com/glossary.md"] --- # London system setup in chess > **For AI agents:** the complete index of GeorgeLiChess pages is [llms.txt](https://georgelichess.com/llms.txt). Every page is also served as markdown at its URL plus .md. The London system setup is a White plan that brings the dark-squared bishop to f4 before e3 can shut it in, then builds a sturdy triangle of pawns on c3. The London system setup is a White plan that brings the dark-squared bishop to f4 before e3 can shut it in, then builds a sturdy triangle of pawns on c3, d4 and e3 that suits nearly any Black reply. [Move order](https://georgelichess.com/glossary/move-order.md) is the whole trick. If White played e3 first, the c1 [bishop](https://georgelichess.com/glossary/bishop.md) would be stuck behind its own pawn, so it goes to f4 early, often on move two. The rest of the army then fills in around the pawn triangle, with [knights](https://georgelichess.com/glossary/knight.md) on f3 and d2, the other bishop on d3 and the king castled short. White's middlegame aims are modest but real. A knight jumping into e5, backed by the d4 pawn and the f4 bishop, is the classic [outpost](https://georgelichess.com/glossary/outpost.md). When Black castles short, the bishop on d3 and a queen on c2 or f3 can turn toward h7, and a well-prepared e4 can open the center later. Black has a few standard ways to test it. Pressure on d4 with ...c5 and ...Nc6, combined with ...Qb6 against b2, asks White to know an exact answer; Qb3 and Qc1 are common ones. Black can also chase the f4 bishop with ...Nh5 or prepare ...e5, so the bishop needs a planned retreat, usually g3. The trade-off is plain. You learn far less [theory](https://georgelichess.com/glossary/opening-theory.md) than in the Queen's [Gambit](https://georgelichess.com/glossary/gambit.md), but the positions are often quiet, and a well-prepared opponent can usually reach a balanced game. A common error is playing the moves in the same order every game after Black has created a concrete threat. Tip: before each routine move, check what Black's last move attacks. Also called: London setup. ## Example position White's bishops stand on g3 and d3 and the knights on f3 and d2, all behind the c3, d4 and e3 pawns. Black has answered with the usual test, ...c5 and ...Nc6 against d4. Position (FEN): `r1bq1rk1/pp3ppp/2nbpn2/2pp4/3P4/2PBPNB1/PP1N1PPP/R2QK2R b KQ -` Compare it with [Colle system setup](https://georgelichess.com/glossary/colle-system-setup.md). The Colle system setup is a quiet White plan that leaves the c1 bishop behind a pawn on e3 for now and groups the other pieces, with Bd3, Nf3, Nbd2 and c3, around one central push, e3-e4. Also worth reading is [System opening](https://georgelichess.com/glossary/system-opening.md). A system opening is a fixed setup that a player uses against almost any reply, such as the London or the King's Indian Attack, trading theoretical depth for familiar plans and a repeatable structure. Opening ideas such as "London system setup" are easier to keep when they are tested on your own games, which is what a [first lesson](https://georgelichess.com/book/first-lesson.md) with George Li begins with. ## Related terms - [System opening](https://georgelichess.com/glossary/system-opening.md) - [Opening principles](https://georgelichess.com/glossary/opening-principles.md) - [Colle system setup](https://georgelichess.com/glossary/colle-system-setup.md) - [Opening repertoire](https://georgelichess.com/glossary/opening-repertoire.md) - [Move order](https://georgelichess.com/glossary/move-order.md) ## Guides that go further - [Most popular chess openings and win rates](https://georgelichess.com/chess-opening-statistics.md): The most played openings, how often White wins, and how the numbers change with rating, computed from public games. - [How to choose a chess coach](https://georgelichess.com/how-to-choose-a-chess-coach.md): What to decide first, the questions to ask, what a first lesson should show and the red flags to avoid. - [The first lesson](https://georgelichess.com/book/first-lesson.md): A game review, a read on your level and a written study plan from George Li. [Book your first lesson](https://georgelichess.com/book.md) and George Li reviews your games and builds a study plan around them. Questions about lessons: write to hello@georgelichess.com. ## Related - [System opening in chess](https://georgelichess.com/glossary/system-opening.md) - [Opening principles in chess](https://georgelichess.com/glossary/opening-principles.md) - [Colle system setup in chess](https://georgelichess.com/glossary/colle-system-setup.md) - [Opening repertoire in chess](https://georgelichess.com/glossary/opening-repertoire.md) - [Move order in chess](https://georgelichess.com/glossary/move-order.md) - [Chess terms: Opening concepts](https://georgelichess.com/glossary/category/opening-concepts.md) - [Chess terms glossary: plain definitions](https://georgelichess.com/glossary.md)