Use a fixed wedge to prepare a break somewhere else

Paul Johner — Aron Nimzowitsch · Event not established in cited score · ????.??.??

Complete legal positionLoading progress…

Decision position · Black to move

Pawn structure and mobility

White occupies d5 with pawns and controls d4, d5, e5 with pawn attacks; Black occupies e4 with pawns and controls d4, e5 with pawn attacks. Black has 4 legal pawn move choices in this position. Pawn control is geometric, including pinned pawns; legal mobility accounts for king safety. Neither count is an engine evaluation.

White

Isolated pawns: a4
Doubled files: c
Passed pawns: None
Blocked ahead: a4 by a5, c3 by c4, c4 by c5, d5 by d6, e3 by e4
Pawn chains: c4–d5; e3–f4–g3

Black

Isolated pawns: None
Doubled files: None
Passed pawns: None
Blocked ahead: a5 by a4, c5 by c4, d6 by d5, e4 by e3, f7 by f6
Pawn chains: a5–b6–c5–d6

Black's legal pawn moves: g6, g5, b5, h4

Identify the chain's support

White's pawn chain on c4, d5 has c4 at its base. Test whether pressure on that support changes the advanced pawns' stability; piece placement and tactics determine whether a break works.

Study this pawn idea

Count legal pawn choices

Black can currently move 3 of its 8 pawns legally (4 advance choices and 0 capture choices, counting promotion choices separately). More pawn moves do not by themselves mean a better position.

Study this pawn idea

Learn the plans behind these pawn structures →

Think before revealing

Before Black plays ...g5, identify the central pawn that restricts White’s pieces. Why does Black prepare the rooks instead of immediately advancing that pawn again?

Diagnose → choose → calculate → explain the transformation. Consider the opponent’s best resistance, not just the move you want them to make.

Your reasoning

What is the pawn situation?Your candidate and intended improvementOpponent’s reply; what changes after the final recapture?

4 · Reflect & return

Can you explain the gain, the concession and the opponent’s plan without reading the notes? Self-rate your understanding to schedule another look. This is a learning record, not an engine grade.

Sources & teaching context

Adapted from the supplied Pawn Play Atlas and Central Pawn Play materials. Unknown historical details remain unknown; illustrations are distinguished from full games.

Historical score / source 1

Transfer the idea

Try it in a different setting.

Study as a curriculum →

Use a fixed wedge to prepare a break somewhere else

Paul Johner — Aron Nimzowitsch · Event not established in cited score · ????.??.??

Complete legal positionLoading progress…

Decision position · Black to move

Pawn structure and mobility

White

Isolated pawns: a4
Doubled files: c
Passed pawns: None
Blocked ahead: a4 by a5, c3 by c4, c4 by c5, d5 by d6, e3 by e4
Pawn chains: c4–d5; e3–f4–g3

Black

Isolated pawns: None
Doubled files: None
Passed pawns: None
Blocked ahead: a5 by a4, c5 by c4, d6 by d5, e4 by e3, f7 by f6
Pawn chains: a5–b6–c5–d6

Black's legal pawn moves: g6, g5, b5, h4

Identify the chain's support

White's pawn chain on c4, d5 has c4 at its base. Test whether pressure on that support changes the advanced pawns' stability; piece placement and tactics determine whether a break works.

Study this pawn idea

Count legal pawn choices

Black can currently move 3 of its 8 pawns legally (4 advance choices and 0 capture choices, counting promotion choices separately). More pawn moves do not by themselves mean a better position.

Study this pawn idea

Learn the plans behind these pawn structures →

Think before revealing

Before Black plays ...g5, identify the central pawn that restricts White’s pieces. Why does Black prepare the rooks instead of immediately advancing that pawn again?

Diagnose → choose → calculate → explain the transformation. Consider the opponent’s best resistance, not just the move you want them to make.

Your reasoning

What is the pawn situation?Your candidate and intended improvementOpponent’s reply; what changes after the final recapture?

4 · Reflect & return

Can you explain the gain, the concession and the opponent’s plan without reading the notes? Self-rate your understanding to schedule another look. This is a learning record, not an engine grade.

Sources & teaching context

Adapted from the supplied Pawn Play Atlas and Central Pawn Play materials. Unknown historical details remain unknown; illustrations are distinguished from full games.

Historical score / source 1

Transfer the idea

Try it in a different setting.

Study as a curriculum →