How to Fight a Pawn Chain in the French
The locked d4-e5 versus e6-d5 chain schedules both plans in advance: White attacks the kingside, Black saws at the base. Chain strategy, fully worked.
Nowhere in chess is the link between pawns and plans as literal as in the French Advance. The moment White plays e5 and the centre locks, both middlegames are already scheduled. White will attack on the kingside, the direction his chain points. Black will attack d4, the pawn holding the chain up. Nimzowitsch built a large part of My System on this structure, and it is still the cleanest place to learn the deepest idea in chain play: you do not fight a chain at its head, you saw at its base.
The skeleton
The French Advance chain. White's pawns run c3-d4-e5 and point at the kingside; Black's run c5-d5-e6 and point at the queenside. Black's ...c5 is already leaning on d4, the base of White's chain. — 4k3/pp3ppp/4p3/2ppP3/3P4/2P5/PP3PPP/4K3 w - - 0 1
The structure comes from the French Advance and several Classical and Steinitz lines. The same chain war runs through the Caro-Kann Advance, with one large difference: in the Caro, Black gets the light-squared bishop outside the chain before playing ...e6, so the piece that is the French's lifelong problem child is already free. That single bishop is why the two structures feel so different to play, and it is the whole subject of Good Bishop, Bad Bishop.
Why the base and not the head
A pawn chain is a diagonal line of pawns, each defended by the one behind it. It has a head (the most advanced pawn, e5 here) and a base (the one at the bottom, d4). The head looks like the problem, since e5 is what cramps Black, but the head is not where you strike. Every link is defended by the link behind it, all the way down to the base, and the base is defended by no pawn at all. Capture the base and every pawn above it is suddenly hanging.
So Black leans on d4. The pawn lever is ...c5, already played in the diagram above; the pieces pile in behind it. ...Nc6 adds a second attacker, ...Qb6 adds a third once the c5 pawn trades and unblocks the diagonal, and White has to keep finding fresh defenders: c3 holds d4, Nf3 guards it, sometimes a bishop must come to e3 purely to babysit. The counting is the game. The moment Black attacks d4 more times than White can defend it, the base falls and the chain with it.
When the base siege stalls, Black has a second lever aimed at the head:
The head break. With d4 holding, Black switches targets and plays ...f6 against e5. If White captures, the f-file opens and e5 becomes contested ground; if White does nothing, ...fxe5 removes the cramping pawn. The cost is that Black's own king loses a shield. — 4k3/pp3ppp/4p3/2ppP3/3P4/2P5/PP3PPP/4K3 b - - 0 1
These two breaks — ...c5 at the base, ...f6 at the head — are Black's entire strategic arsenal in the structure. Everything else is preparation for one of them.
Both levers turned up together in Carlsen-Praggnanandhaa, Norway Chess 2026, one of the most talked-about games of the year. Praggnanandhaa met the Advance with ...Nh6 and ...f6 against the head, then ...Nxd4 to take the base. Winning the pawn only equalized, but the plan was sound enough to beat the world number one from a level position.
White's side of the bargain
While Black saws at the base, White plays where his chain points. The fixed pawn on e5 hands White more space on the kingside and, crucially, takes the f6 square away from Black's defenders, so White's pieces arrive at the black king faster than the defenders can regroup. That is the space argument spelled out in Space Advantage. The standard attacking picture is a bishop on d3 aiming at h7, the queen and knights swinging kingside, and sometimes f4-f5 using the head pawn as a battering ram.
The tension in White's position is arithmetic: every piece assigned to defend d4 is a piece missing from the kingside attack. Defend the base too heavily and the attack starves; attack too freely and the base falls. Reading that balance is what separates a French Advance won from one lost.
Both sides also have to reckon with the structure changing shape. If White plays dxc5, the chain converts into an e5-strongpoint position with different targets but the same kingside orientation. If Black gets in ...f6 and White answers exf6, the head vanishes, e5 becomes a contested square, and Black's e6 pawn is left backward on a half-open file, the exact weakness worked through in The Backward Pawn Problem.
The blockade classic
The founding demonstration is Nimzowitsch–Salwe, Karlsbad 1911, the game that gave the blockade its theory. Nimzowitsch does something that looks like heresy: rather than clinging to his cramping centre, he plays 7.dxc5 and gives it up on purpose — the engine's first choice — then reoccupies d4 and e5 with pieces instead of pawns. Salwe's ...f6 break comes and goes without freeing him, the blockading pieces cannot be dislodged, and by the middlegame Black is suffocating behind his own chain. It is the clearest illustration ever played of the idea that the squares matter more than the pawns that once held them.
The blockade is an advanced treatment. Most French Advance games are the straight race described above: Black counts attackers on d4 while White counts tempi toward h7. But Nimzowitsch's point outlives the specific game. When you cannot hold a pawn, ask whether you would rather hold the square it stood on.