French Defence: La Bourdonnais Variation
The old f4/e5 setup: maximal space from move two, named after the great 1834 match.
French Defence: La Bourdonnais Variation is one of the most compelling entries in the Encyclopaedia of Chess Openings — and a line that repays every hour you sink into it.
After 3.e5 the position resolves into a fluid centre — one side has staked a central pawn the other must decide how to challenge, so the structure is still being negotiated.
This is a branch of the French Defence. If you are new to the system, start with the parent guide and return here when you want to go one move deeper.
The moves
After 3. e5 — French Defence: La Bourdonnais Variation main line
Position breakdown
A factual read of the position after the main line — the files, the centre, the pawn structure and king safety that decide how the middlegame is played. These are computed from the actual board, not generic advice.
Files
Centre control
Fluid centre
The d4/d5/e4/e5 squares — who occupies the centre decides how open the game becomes.
Pawn skeleton
Pawns only — the structure that explains every open file and majority at a glance.
Material level
Queenside pawns 3–3
Kingside pawns 3–3
Development
No minor pieces developed yet
No minor pieces developed yet
King safety
White king e1
Uncastled — take care
Black king e8
Uncastled — take care
Computed from the final position of the main line above — 5 plies, black to move.
Strategic ideas
Ideas for White
Hold the e5 wedge and attack with f4-f5 space gains, while meeting Black's ...c5/...f6 counterstrikes with precise central play.
Ideas for Black
Attack the base of the chain with ...c5 and ...f6, exploit the light squares with ...Qb6/...Qa5 hits, and free the c8-bishop with ...b6/...Ba6 timing.
Plans & pawn structures
- 1The centre is still fluid: decide early whether to lock it with a pawn advance or dissolve it with an exchange, because that choice picks the whole middlegame plan for you.
- 2Watch the pawn breaks — both yours and your opponent's. In these structures the player who times the central break better usually wins the game.
Typical middlegame structures
The main line leads to a fluid centre — one side has staked a central pawn the other must decide how to challenge, so the structure is still being negotiated. No files have opened yet, so this is a manoeuvring struggle: improve your pieces and prepare the pawn break that will open the position on your terms.
Traps & tactical motifs
The Milner-Barry Gambit traps: after 6...Qb6,careless piece play lets Black's ...Qxb2 and ...Bd7 hits win material.
In the Winawer, grabbing on c3 with the wrong move order loses a piece to the ...Qa5 double hits.
How to Play Against the La Bourdonnais Variation
- As White, strike at the fluid centre immediately with your own central pawn or piece pressure, before the opponent locks it into a shape that favours them.
Masters & history
Study plan & who it's for
Expect to invest a weekend or two into the main lines. In return you get a fighting system that scales all the way to master level for Black players.
Play through the main line above until the piece setup feels natural.
Learn the two or three critical pawn breaks for both sides.
Drill one variation at a time — always connecting moves to plans.