Openings

Trompowsky Attack

Disrupt Black's structure early with 2.Bg5, trading bishop for knight to create lasting pawn imbalances.

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Introduction

The Trompowsky Attack (1. d4 Nf6 2. Bg5) is named after Brazilian player Octavio Trompowsky, who introduced it in the 1930s. It surged in popularity when Julian Hodgson championed it in the 1990s, and later became a regular weapon for Magnus Carlsen, Hikaru Nakamura, and Shakhriyar Mamedyarov at the highest level. The core idea is straightforward: develop the dark-squared bishop *before* playing e3, then trade it for Black's knight to saddle Black with doubled f-pawns. White accepts giving up the bishop pair in exchange for a lasting structural edge. The resulting positions are rich in strategic nuance, with White aiming for solid pawn play while Black compensates with the bishop pair and central mass.

Lesson Content

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1. d4

The Queen's Pawn opening — White claims the center with the d-pawn, which is immediately defended by the queen. This tends to lead to more strategic, closed positions compared to 1. e4. Black's main responses: - 1. ..d5 — Queen's Gambit and Slav setups - 1. ..Nf6 — Indian Defenses (King's Indian, Nimzo-Indian, etc.) - 1. ..f5 — Dutch Defense

Center Control
Alternative Moves
e4 — Also excellent but leads to entirely different openings. d4 is required for the Trompowsky.
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1. ..Nf6

Black develops the knight and controls e4, preventing White from building the ideal e4+d4 center easily. This is the gateway to all Indian Defense systems. Black delays committing a pawn structure, staying flexible to choose between King's Indian, Nimzo-Indian, Queen's Indian, and more.

DevelopmentCenter Control
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2. Bg5

The Trompowsky Attack! White pins the knight against the queen and develops the bishop to an active square before e3 blocks it in. This is the same principle as the London System (2. Bf4) but more aggressive — White intends to trade the bishop for the knight, disrupting Black's pawn structure. Black's main responses: - 2. ..d5 — solid, the most popular at the top level - 2. ..Ne4 — immediately challenging the bishop - 2. ..e6 — Classical Defense, transposing to French-like structures

DevelopmentPiece ActivityThreat
Alternative Moves
c4 — The standard Indian complex. Bg5 sidesteps heavy theory and creates immediate imbalances.
Bf4 — The London System — solid but less ambitious. Bg5 aims to damage Black's structure.
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2. ..d5

Black claims the center and prepares ..c5 to challenge d4. This is the most popular reply at the top level — Kramnik, Karjakin, So, and Caruana have all chosen this solid approach. Black ignores the pin for now, reasoning that White will have to declare intentions soon.

Center Control
Alternative Moves
Ne4 — The most combative reply, immediately confronting the bishop. Sharp and tactical but riskier.
e6 — The Classical Defense — solid but passive, blocks the light-squared bishop.
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3. e3

White solidifies the center and prepares piece development. The bishop is already on g5 — had White played e3 first, the dark-squared bishop would be trapped behind the pawn chain. This sequencing (Bg5 before e3) is the defining idea of the Trompowsky. Now White waits for Black to commit with ..c5 before executing the trade on f6.

Pawn StructureDevelopment
Alternative Moves
Bxf6 — Trading immediately is possible but e3 first gains more flexibility. White keeps the tension.
Nd2 — Carlsen's alternative — also strong but e3 is the most popular continuation.
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3. ..c5

Black challenges d4 immediately, the most principled reaction. By striking at the center now, Black tries to open the position and exploit the bishop pair (which Black will get after White trades on f6). This was Kramnik's choice against Carlsen in their famous 2013 encounter.

Center ControlPawn Structure
Alternative Moves
c6 — Kasparov's choice — solid but less dynamic. Supports d5 without challenging d4.
Nbd7 — Nakamura-Aronian 2014 continuation. Develops but doesn't challenge the center immediately.
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4. Bxf6

The key trade! White gives up the bishop pair but permanently damages Black's kingside pawn structure. After ..gxf6, Black will have doubled f-pawns — a long-term weakness that's hard to repair. This is the fundamental Trompowsky bargain: structural advantage vs. the bishop pair.

Pawn StructurePiece Activity
Alternative Moves
c3 — Rapport's choice — keeps the bishop but plays more passively. Bxf6 is the sharper, more popular approach.
dxc5 — Premature — trade on f6 first to lock in the structural damage before dealing with the center.
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4. ..gxf6

Black recaptures toward the center, the overwhelming choice in master play. The doubled f-pawns are a structural concession, but Black gains the open g-file for the rook and the bishop pair as long-term compensation. The alternative 4. ..exf6 keeps a tidier structure but is far less popular.

Pawn Structure
Alternative Moves
exf6 — Keeps a cleaner structure but leads to a very drawish, closed game. gxf6 is more ambitious.
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5. dxc5

White captures the c5 pawn, opening the position. This looks like giving up the center, but White calculates that the temporary pawn gain and the open d-file will be useful. Black will regain the pawn with ..Bxc5, but White has already secured the structural advantage.

Center ControlPiece Activity
Alternative Moves
Nc3 — Develops but lets Black maintain tension. dxc5 is more direct and scored well at the top level.
c4 — Also playable but dxc5 is the main line — White's structure stays flexible.
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5. ..e6

Black prepares to recapture the c5 pawn with the bishop. The pawn on e6 also supports a future ..d4 push and opens the diagonal for the dark-squared bishop.

DevelopmentPawn Structure
Alternative Moves
Nc6 — Karjakin and Caruana's choice — develops first but e6 is the most popular, preparing immediate recapture.
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6. Nf3

White develops the knight to its best square. From f3 it controls d4 and e5, supports the center, and prepares kingside castling. A natural, solid developing move before Black recovers the pawn.

DevelopmentCenter Control
Alternative Moves
c4 — Tries to hold the pawn but overextends. Nf3 develops first — White doesn't need to hold c5.
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6. ..Bxc5

Black recovers the pawn and develops the bishop to an active diagonal. The bishop on c5 eyes the f2 square and controls key central squares. Material is now equal, but the structural imbalance persists.

DevelopmentPiece Activity
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7. Be2

A modest but effective developing move. The bishop on e2 prepares castling and supports future ideas like c4 to challenge Black's center. In this structure, Be2 is preferred over Bd3 — the d3 square may be needed for the queen or knight. This is the overwhelming master choice — 172 out of 200 games continued with Be2.

DevelopmentKing Safety
Alternative Moves
c4 — Challenging d5 immediately is possible but developing pieces first is more prudent. Be2 + O-O first, then c4.
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7. ..Nc6

Black develops the knight to its natural square, controlling d4 and e5. The knight also supports a future ..e5 or ..d4 push, both thematic for Black in this structure.

DevelopmentCenter Control
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8. O-O

Castle to safety! White tucks the king away and connects the rooks. The rook on f1 will find activity on the d-file or support a future f-pawn advance.

King SafetyDevelopment
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8. ..O-O

Black also castles. Both sides have completed basic development. Now the strategic battle begins — White will challenge d5 with c4, while Black aims to use the bishop pair and central mass.

King Safety
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9. c4

The thematic pawn lever! White challenges Black's d5 pawn, aiming to open lines for the pieces. This is the key positional idea — c4 creates tension in the center and forces Black to commit. Black must decide: push ..d4 (gaining space but fixing the pawn) or exchange ..dxc4 (simplifying but giving White the c-file).

Center ControlSpace
Alternative Moves
Nbd2 — Develops but delays the critical c4 break. c4 is the engine's top choice here.
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9. ..d4

Black pushes forward, gaining space and fixing the pawn on d4 where it restricts White's pieces. This is the most popular choice — Black's central pawn mass becomes a strength. The alternative ..dxc4 is also viable but gives White easy play on the open files.

SpaceCenter Control
Alternative Moves
dxc4 — Simplifies but opens the c-file for White's rook. d4 keeps more tension and gains space.
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10. exd4

White recaptures, reaching a key position. White has an isolated d-pawn but excellent piece activity — the knight can use d4 or c3, and both bishops have open diagonals. The position is dynamically balanced (engine evaluates 0.00) with both sides having clear plans.

Pawn StructurePiece Activity
Alternative Moves
b4 — Erigaisi and Giri's ambitious choice — gains queenside space but exd4 is safer and equally good.

Key Takeaways

  • Bg5 before e3 — develop the bishop while it's still free
  • Trade on f6 to saddle Black with doubled pawns — the core Trompowsky bargain
  • c4 is the key positional lever to challenge Black's center
  • White gets structural advantage; Black gets the bishop pair — both sides have chances
  • Carlsen, Nakamura, and Mamedyarov all use this regularly at the highest level

Summary

You've learned the Trompowsky Attack — White's aggressive alternative to the London System and traditional 1. d4 lines. The key idea is trading the dark-squared bishop for Black's knight to create doubled f-pawns, then exploiting the structural advantage with solid development and the thematic c4 break.

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