--- title: "French structure in chess" url: "https://georgelichess.com/glossary/french-structure.md" canonical_url: "https://georgelichess.com/glossary/french-structure" last_updated: "2026-11-07" type: "reference" summary: "The pawn chain where White has pawns on d4 and e5 against Black pawns on d5 and e6. The classical rule is to attack the base of the enemy chain." related: ["https://georgelichess.com/glossary/pawn-chain.md", "https://georgelichess.com/glossary/bad-bishop.md", "https://georgelichess.com/glossary/space-advantage.md", "https://georgelichess.com/glossary/pawn-lever.md", "https://georgelichess.com/glossary/blockade.md", "https://georgelichess.com/glossary/kingside-pawn-storm-structure.md", "https://georgelichess.com/glossary/category/opening-concepts.md", "https://georgelichess.com/glossary.md"] --- # French structure 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 pawn chain where White has pawns on d4 and e5 against Black pawns on d5 and e6. The classical rule is to attack the base of the enemy chain. The pawn chain where White has pawns on d4 and e5 against Black pawns on d5 and e6, giving White space on the kingside and Black a bad c8 bishop and counterplay against the d4 base. In the main French lines Black plays ...e6 and ...d5, White pushes e5, and a chain forms with e5 backed by d4 against e6 backed by d5. The tip of White's chain, e5, points toward Black's kingside, while Black's chain points at White's queenside. The classical rule is to attack the base of the enemy chain. Black does this with ...c5 and ...Qb6, hitting d4, and often ...f6 to challenge the head on e5. White can hit the base of Black's chain on e6 with f4-f5, a plan that doubles as a kingside attack, and can also challenge the head on d5 with c4. White gets space and a comfortable kingside attack, so [castling](https://georgelichess.com/glossary/castling.md) short can be risky for Black. Black gets a solid structure but a bad light-squared [bishop](https://georgelichess.com/glossary/bishop.md) on c8 that needs to be rerouted, often with ...b6 and ...Ba6 or by trading it off. Black's [counterplay](https://georgelichess.com/glossary/counterplay.md) is on the queenside. Common errors include White pushing the kingside pawns without pieces behind them, and Black defending passively instead of striking with ...c5 or ...f6. Practical tip: whenever the chain is locked, decide which wing you are attacking and bring your pieces there before pushing pawns. Also called: French pawn chain. ## Example position White has the chain d4 and e5 and Black has e6 and d5, with ...c4 fixing the queenside. Find the bad light-squared bishop on c8. Position (FEN): `r1b1kbnr/pp3ppp/1qn1p3/3pP3/2pP4/P1P2N2/1P3PPP/RNBQKB1R w KQkq -` It sits close to [Caro-Kann structure](https://georgelichess.com/glossary/caro-kann-structure.md). The solid Black setup with pawns on c6 and d5 against White's e4 pawn, often leading to a healthy pawn formation where Black can develop the light-squared bishop outside the chain. Compare it with [Kingside pawn storm structure](https://georgelichess.com/glossary/kingside-pawn-storm-structure.md). A kingside pawn storm structure arises when the center is locked, so one side can march its kingside pawns toward the enemy king while the opponent counterattacks on the other wing, as in the classical King's Indian Defense. Also worth reading is [Semi-open defense](https://georgelichess.com/glossary/semi-open-defense.md). A semi-open defense is any Black reply to 1.e4 other than 1...e5, such as 1...c6, 1...e6, 1...d6 or 1...c5, in which Black meets White's central pawn from the side instead of facing it head-on. Opening ideas such as "French structure" 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 - [Pawn chain](https://georgelichess.com/glossary/pawn-chain.md) - [Bad bishop](https://georgelichess.com/glossary/bad-bishop.md) - [Space advantage](https://georgelichess.com/glossary/space-advantage.md) - [Pawn lever](https://georgelichess.com/glossary/pawn-lever.md) - [Blockade](https://georgelichess.com/glossary/blockade.md) - [Kingside pawn storm structure](https://georgelichess.com/glossary/kingside-pawn-storm-structure.md) ## Openings where it occurs - [French defense](https://georgelichess.com/chess-opening-statistics/french-defense.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 - [Pawn chain in chess](https://georgelichess.com/glossary/pawn-chain.md) - [Bad bishop in chess](https://georgelichess.com/glossary/bad-bishop.md) - [Space advantage in chess](https://georgelichess.com/glossary/space-advantage.md) - [Pawn lever in chess](https://georgelichess.com/glossary/pawn-lever.md) - [Blockade in chess](https://georgelichess.com/glossary/blockade.md) - [Kingside pawn storm structure in chess](https://georgelichess.com/glossary/kingside-pawn-storm-structure.md) - [Chess terms: Opening concepts](https://georgelichess.com/glossary/category/opening-concepts.md) - [Chess terms glossary: plain definitions](https://georgelichess.com/glossary.md)