Pawn structures: the pawns decide the plan

Pawns never go back

A piece on the wrong square can move on the next turn. A pawn that has gone forward stays there, or goes further. That's why the pawns change slowly, and why they decide so much of what happens in the middlegame: which files open, which squares the pieces can use and which pawns need protection.

How the pawns stand is called the pawn structure. The same structure can arise from many different openings, and the plans come with it. If you recognize the structure, you often have a plan ready, even when the position is new to you. Here are some of the most common.

The isolated queen's pawn

The pawn on d4 has no neighbors. It gives White's pieces room and the squares e5 and c5, but it has to be protected by pieces, and Black gets a fine square in front of it, d5. White wants to attack while the pieces are still on the board. Black wants to trade and reach the endgame, where the pawn is easier to win. More on the page about the isolated queen's pawn.

Hanging pawns

Two pawns side by side, with no pawns of their own on the files next to them. As long as they stand side by side they control many squares in the center, and their owner can choose when one of them should advance. The opponent tries to force that choice too early. Then the pawns are stuck, and the opponent's pieces can take the squares around them.

That's what happened in Fischer vs. Spassky, 1972. After 20.e4 d4 Black's pawns never got any further, and White's bishop had free play on the light squares. More on that on the page about hanging pawns.

The Carlsbad structure

After the Exchange Variation of the Queen's Gambit, both sides have a half-open file: White the c-file and Black the e-file. White has two pawns against three on the queenside. That sounds like a drawback, but White's best-known plan is built on exactly that: the b-pawn advances to b5 and is traded for the pawn on c6, and what remains is often a weak black pawn. The plan is called the minority attack, and it has a page of its own: the minority attack.

Pawn chains

In the French Defense the pawns stand in chains, diagonally behind each other. A chain points at the wing where its owner usually plays: White's at the kingside, Black's at the queenside. A chain is attacked at its base, the rearmost pawn, which holds up the rest. That's why Black strikes at d4 with …c5, and sometimes at the head on e5 with …f6. Read more about the pawn chain in the glossary.

The chains have a downside too. Black's pawns on d5 and e6 stand on light squares and shut in Black's bishop on c8. That is the subject of the page about good and bad bishops.

Doubled pawns and the center

Doubled pawns can't protect each other, and the front one often becomes weak. But they rarely come alone. Often their owner gets something with them: a half-open file, a stronger center or the bishop pair. In the Nimzo-Indian White is happy to accept them for that.

In Botvinnik vs. Capablanca, 1938, Botvinnik let Black win a pawn on the queenside. Instead he pushed his center pawns, with f3, e4 and e5, toward Black's king. Try for yourself how he went on.

The Open Sicilian

In the Sicilian Black trades the c-pawn for White's pawn on d4. That gives Black two center pawns against one and the half-open c-file. White gets quicker development and more space. That's why the games are often sharp: White wants to use the lead before Black's extra center pawn starts to count. And when the kings castle on opposite sides, it becomes a race.

Three questions about the pawns

When you don't know what to do, look at the pawns and ask:

1. Which files are open or half-open? That's where the rooks belong.
2. Which squares can no pawn protect? That's where pieces can settle, yours and your opponent's. Such squares are called outposts.
3. Where do you have more pawns? That's where you can advance, and where in the end there may be a passed pawn.

Common mistakes

• Pawn moves without a plan. Every pawn that moves forward leaves squares behind that it can never protect again.
• Capturing away from the center for no reason. When you recapture with a pawn you often have a choice. Toward the middle is usually better.
• Forgetting the endgame. A weakness that doesn't show with all the pieces on the board can decide the game once they are gone.

Updated November 14, 2026