How to Play the Trompowsky Attack
The anti-Indian surprise weapon that sidesteps King's Indian, Nimzo-Indian, Grünfeld, and Queen's Indian theory in a single move. Used by Magnus Carlsen, Julian Hodgson, Hikaru Nakamura, and Shakhriyar Mamedyarov as a high-ROI alternative to memorizing 1.d4 Nf6 2.c4 theory. A complete 1.d4 Nf6 2.Bg5 repertoire — main lines against 2...Ne4, 2...e6, 2...d5, 2...c5, and 2...g6.
TL;DR — Quick Answer
- Moves: 1.d4 Nf6 2.Bg5 — pin the f6-knight immediately and skip every Indian Defense
- White's plan: Drop Black out of preparation by move 2, trade Bxf6 to inflict doubled pawns or kingside weakness, attack with h4-h5 if Black weakens the kingside
- Key idea: Sidestep theory rather than try to refute it — the Tromp wins on practical confusion, not theoretical edge
- Main lines: Against 2...Ne4 (most common) play 3.Bf4 or 3.h4; against 2...e6 play 3.e4 + Bxf6; against 2...d5 play 3.Bxf6 exf6 4.e3; against 2...c5 play 3.d5 (sharp) or 3.Bxf6 (quieter)
- Best for: Club players (1200+) who want a low-theory 1.d4 weapon, and ambitious players who want a serious surprise weapon for rapid and blitz
- Critical line: 2...Ne4 3.h4!? — Hodgson's signature, the reason most Black players fear the Tromp at club level
What Is the Trompowsky Attack?
The Trompowsky Attack is a chess opening for White against 1...Nf6 beginning:
1. d4 Nf6
2. Bg5
The defining move is 2.Bg5. Instead of playing the standard 2.c4 (which invites all the heavily-analyzed Indian Defenses), White immediately develops the dark-squared bishop to pin the f6-knight. The pin isn't absolute (Black's queen is on d8 not e7), but it creates a concrete threat — Bxf6 capturing the knight — and forces Black to make a decision before any other moves are played.
The opening is named after Octavio Trompowsky, a Brazilian master who played 2.Bg5 in tournaments in the 1930s and 1940s. For decades it was considered an offbeat sideline, but in the 1990s English grandmaster Julian Hodgson adopted it as his primary 1.d4 weapon and reached the British top-3 with it, demonstrating that the opening had been seriously underrated. Hodgson's aggressive ideas — particularly the 3.h4 attacking plan against 2...Ne4 — gave the Trompowsky its modern attacking identity.
Today the Trompowsky is a frequent surprise weapon in the repertoires of Magnus Carlsen (famously played in the 2016 World Championship rapid tiebreaks against Karjakin), Hikaru Nakamura, Shakhriyar Mamedyarov, and Michael Adams. The pattern is consistent: top GMs play the Tromp when they want a low-theory game against a well-prepared opponent in fast time controls. Engine evaluation says equal, but the practical effect of dropping a strong opponent out of preparation by move 2 is significant.
Main Variations — Every Black Reply Covered
Black has roughly five plausible second moves against the Trompowsky. A complete White repertoire needs an answer for each:
2...Ne4 — The Main Line (most popular Black reply)
1.d4 Nf6 2.Bg5 Ne4 3.Bf4 (or 3.h4)
By far the most-played Black response and the line every Trompowsky player must know cold. Black immediately kicks the bishop and grabs a central tempo, forcing White to make a decision: retreat the bishop quietly with 3.Bf4 (the modern main line, played by Carlsen and Mamedyarov), retreat sharply with 3.h4!? (Julian Hodgson's signature aggressive choice — White answers ...Nxg5 with hxg5 and gets a half-open h-file for a direct attack), or 3.Bh4 (the older quieter retreat). The 3.Bf4 main line continues 3...d5 4.f3 (kicking the knight) Nf6 5.e4 (entering an Advance French-like structure). At club level, knowing the exact 3.h4 attacking ideas wins games — most Black players assume Bg5 simply retreats and walk into a kingside avalanche. This is the line where the Trompowsky scores its highest practical win rate.
2...e6 — The Solid Reply
1.d4 Nf6 2.Bg5 e6 3.e4 h6 4.Bxf6 Qxf6
Black's solid attempt to play a French Defense structure with the bishop pin neutralized. The critical line runs 3.e4 (taking the center White has been promising) h6 4.Bxf6 Qxf6 5.Nc3, and White has a clear plan: c3, Bd3, and Nf3 with a solid center and the bishop pair traded but a free hand for the e5 push. Black gets the bishop pair but with the f6-queen slightly awkwardly placed (often it has to retreat to d8 or e7 within a few moves). Many strong players use 2...e6 specifically to bypass the Tromp's sharper lines — it leads to quiet maneuvering positions where deep theoretical knowledge matters less. White's practical score here is roughly equal at the top level but significantly better at club level, where Black players underestimate how cramped the position becomes.
2...d5 — The Pseudo-Trompowsky
1.d4 Nf6 2.Bg5 d5 3.Bxf6 exf6 4.e3
Black's safest equalizing try, often called the Pseudo-Trompowsky structure. The forcing line is 3.Bxf6 (or 3.e3) exf6 4.e3 Bf5 (or 4...c6, 4...g6), entering a position similar to a Caro-Kann Exchange or French Exchange with doubled f-pawns for Black but the bishop pair. White's plan is c4, Nc3, Nf3, Bd3, and slow positional play to exploit Black's f6/f7 doubled pawns and the half-open e-file. Engine evaluation says equal, but White scores well at every level below 2400 because the doubled f-pawns are a long-term structural weakness Black has to play around. If you face 2...d5 frequently, study Carlsen's games here — he's converted many small-edge endgames against world-class opposition from this exact structure.
2...c5 — The Sharpest Counter (Vaganian Gambit territory)
1.d4 Nf6 2.Bg5 c5 3.d5 (or 3.Bxf6)
Black's most ambitious answer — immediately challenging the d-pawn with ...c5 and inviting a Benoni-like structure. White's two main choices are 3.d5 (entering Vaganian Gambit territory after 3...Qb6! 4.Nc3 Qxb2 — White sacrifices the b-pawn for fast development and tempi on the queen) or 3.Bxf6 (capturing first, then meeting 3...gxf6 with 4.d5 for a Benoni-with-doubled-pawns structure). The Vaganian Gambit lines are notoriously tactical — sample line 3.d5 Ne4 4.Bf4 Qb6 5.Bc1 e6 — and require concrete preparation from both sides. White's score is excellent at club level (Black's queen wandering looks risky and often is) but neutral at the top. If you want a quieter Trompowsky against 2...c5, simply play 3.Bxf6 and head for the Benoni-structure endgame where your bishop pair compensates for the d6-d5 weakness.
2...g6 — The King's Indian-Style Reply
1.d4 Nf6 2.Bg5 g6 3.Bxf6 exf6
A reply you'll see from King's Indian or Modern Defense players who want to keep the fianchetto idea. The main line is 3.Bxf6 (taking immediately is best here — otherwise Black untangles cheaply) exf6 4.e3 Bg7 5.c3 or 5.Nc3 with a Benoni-like structure. Black has the bishop pair and a fianchettoed dark-squared bishop, but the doubled f-pawns (f7 and f6) cramp the structure and the e-file becomes a White target. Some Black players choose 3...gxf6 instead, prioritizing the long diagonal — but this leaves the kingside dangerously weakened, and White's standard plan of h4-h5 or simply castling queenside and attacking with g4 wins many practical games. A practical tip: if your opponent plays 2...g6 in blitz, choose 3.Bxf6 gxf6 4.e3 — the kingside collapse comes faster than they think.
Practical tip: At club level, expect roughly 60% of opponents to play 2...Ne4 (the most natural move), 20% to play 2...d5 (Pseudo-Trompowsky), 10% to play 2...e6, and 10% to split between 2...c5 and 2...g6. If you only have time to seriously study one line, study 2...Ne4 with the Hodgson 3.h4 attacking plan — it covers most of your games and produces the most decisive results.
The Main Line vs 2...Ne4 — Move by Move
The modern main line against 2...Ne4 is 3.Bf4 (Carlsen and Mamedyarov's choice), aiming for a solid central setup. Here's the standard sequence:
1. d4 Nf6 2. Bg5 Ne4
3. Bf4 d5
4. f3 Nf6
5. e4 dxe4
6. Nc3 exf3
7. Nxf3 e6
8. Bd3 Be7
9. O-O O-O
The critical moves are 3.Bf4 (modern quiet retreat — the bishop stays active eyeing c7 and the queenside), 4.f3 (the key move — kicking the knight back to f6 while preparing e4), 5.e4 (claiming the center White has been promising), and 6.Nc3 (sacrificing the f3-pawn temporarily for fast development — Black usually gives it back within 2-3 moves rather than try to hold it).
- WhiteBuild a big center with d4 + e4, complete kingside development (Bd3, Nf3, O-O), then choose between a central break (e5 or d5) or a slow positional squeeze. The bishop pair on f4 + d3 gives long-term pressure on the kingside. Standard middlegame plans include Qd2 (preparing kingside attack), Rad1 (central pressure), and eventually Ne5 if the position allows.
- BlackComplete development with ...Be7, ...O-O, ...c5 or ...Nbd7. The position is roughly equal but requires accurate play — White's center is bigger and the bishop pair on f4 + d3 generates long-term threats. Standard plans include ...c5 (challenging the center directly), ...Nbd7-b6 (rerouting the queen's knight), and eventually ...b6 + ...Bb7 to develop the light-squared bishop.
For the sharper 3.h4!? Hodgson variation, the critical sequence runs:
1. d4 Nf6 2. Bg5 Ne4
3. h4 c5
4. d5 Qb6
5. Bd2 Nxd2
6. Nxd2 Qxb2
7. Nc4 Qb4+
8. c3 Qa4
White sacrifices the b-pawn for fast development, tempo on Black's queen, and a complete grip on the center. At club level this line scores extremely well — Black's queen excursion looks risky and often is.
Trompowsky vs Other White Systems — When to Choose Which?
The Trompowsky is one of several White choices that sidestep 1.d4 Nf6 2.c4 theory. Each has a distinct personality:
Trompowsky Attack — this article
Aggressive anti-Indian system with early Bg5. Lower theoretical demands than the Queen's Gambit but sharper than the London. Best for attacking players who don't mind trading the dark-squared bishop and want a serious surprise weapon.
Trompowsky vs London System
Both develop the dark-squared bishop early and avoid Queen's Gambit theory. London (2.Bf4 or 3.Bf4) is a positional setup — same plan against everything, slow long-term squeeze. Trompowsky (2.Bg5) is more confrontational — immediate pin, willing to trade bishop for knight, more tactical. London for the no-theory positional weapon; Trompowsky for tactical chances and surprise value.
Trompowsky vs Queen's Gambit (2.c4)
2.c4 is the classical main move — leads to all the Indian Defenses (King's Indian, Nimzo, Grünfeld, Queen's Indian) plus the QGD/QGA/Slav complex. Massive theory but the highest ceiling for White. The Trompowsky trades that ceiling for much lower theoretical demands and stronger practical surprise value. Choose 2.c4 if you have time to study deeply; choose 2.Bg5 if you want high return on study time.
Trompowsky vs Torre Attack (2.Nf3 followed by 3.Bg5)
The Torre Attack (1.d4 Nf6 2.Nf3 e6 3.Bg5) is the Trompowsky's quieter cousin — same Bg5 pin but delayed by a move, with Nf3 developed first. Torre tends to lead to slower positional games where the bishop pin matters less and the position resembles a Queen's Gambit Declined with the c-pawn still home. Trompowsky is the more aggressive choice — immediate pin, willingness to trade Bxf6 quickly. If you like the bishop pin idea but want slower games, prefer the Torre.
Trompowsky vs Colle System (2.Nf3 + 3.e3 + 4.Bd3)
The Colle is the most passive anti-Indian system — White builds Bd3 + Nf3 + e3 + c3 and plays for a slow e4 break. It's easy to learn but doesn't fight for an advantage. The Trompowsky is significantly more ambitious — White fights for concrete play with the Bg5 pin and the bishop trade. If you've outgrown the Colle and want a real White system that scales beyond beginner level, the Trompowsky is the natural next step.
Trompowsky vs Veresov Attack (1.d4 d5 2.Nc3)
The Veresov (1.d4 + 2.Nc3 + 3.Bg5) is the Trompowsky's sister opening targeting 1...d5 setups. Both feature the early Bg5 pin and the bishop trade idea, but the Veresov develops the knight first and only plays Bg5 on move 3. Most Trompowsky players use the Veresov against 1.d4 d5 to keep the same Bg5-based style across both Black setups. They're natural companions in a complete anti-classical White repertoire.
Key Strategic Themes
Master these four concepts and any Trompowsky position becomes navigable:
The early Bg5 — psychological pressure as opening theory
The entire point of the Trompowsky is to pull Black out of preparation by move 2. Black's repertoire is almost certainly built around the King's Indian, Nimzo-Indian, Grünfeld, or Queen's Indian — each of which begins 2...e6 or 2...g6 expecting 2.c4. By playing 2.Bg5 instead, White short-circuits that preparation entirely. Black now faces an immediate question: capture, retreat, or develop? Most Black players have no concrete plan ready and either play 2...Ne4 (which is theoretically fine but transposes into territory White knows much better) or 2...e6/d5 (passive, conceding the initiative). This is why Carlsen plays the Trompowsky in rapid and blitz against world-class opposition — the opening doesn't need a theoretical advantage; it just needs to drop the opponent out of book. At club level, this effect is amplified — most Black players have zero preparation against 2.Bg5 and the resulting positions look completely unfamiliar.
The Bxf6 trade — when to give up the bishop pair voluntarily
A surprising fraction of Trompowsky lines involve White voluntarily giving up the bishop pair with Bxf6. This violates standard opening principles — normally you don't trade a bishop for a knight unless you get something concrete — so it confuses Black, who often plays for the bishop pair advantage that isn't really there. The compensation is structural: if Black recaptures with ...gxf6, the kingside is permanently weakened and White's h4-h5 attacking plan becomes thematic. If Black recaptures with ...exf6, the doubled f-pawns become a long-term endgame weakness and White's c3+e3+Nf3+Bd3 setup leaves a permanent positional edge. The Trompowsky player needs to be comfortable trading the dark-squared bishop on move 3 or 4 routinely — if you can't part with it, the opening won't work for you.
The h4 attack — Hodgson's signature idea
Julian Hodgson played the Trompowsky almost exclusively for two decades and developed the sharpest attacking plans the opening offers. The defining motif is the h-pawn push — most famously 3.h4!? after 2...Ne4 (inviting ...Nxg5 4.hxg5 with a half-open h-file and direct kingside attack), but also h4-h5 against the 2...g6 and 2...e6 lines where Black's kingside has been weakened by ...h6 or ...gxf6. The h4-h5 plan is the Trompowsky player's primary attacking weapon and works because Black's king is often committed to the kingside long before White has to make a similar commitment (White can castle queenside or simply leave the king in the center while pushing). At club level, many Black players don't recognize the attacking potential and walk into mating attacks by move 20. If you study just one Trompowsky idea, study Hodgson's h4 plan — it wins games.
Sidestepping 1.d4 theory entirely — the strategic payoff
The Trompowsky's biggest practical advantage isn't a theoretical edge — it's that it eliminates Black's main 1.d4 repertoire choices in a single move. Against 1.d4 Nf6 2.c4, Black has dozens of fully-worked-out systems: King's Indian Main Line, Nimzo-Indian Rubinstein, Grünfeld Exchange, Queen's Indian Petrosian, Benoni, Benko, Bogo-Indian. Against 1.d4 Nf6 2.Bg5, Black has roughly five plausible setups, and most are unfamiliar territory. For a White player trying to maximize study efficiency, the Trompowsky lets you avoid memorizing 200+ moves of King's Indian theory and replace it with about 40 moves of Trompowsky theory — and your opponent will know even less. This is exactly why GMs like Carlsen, Nakamura, Mamedyarov, and Adams keep it in their rapid/blitz repertoire — high ROI on preparation time.
How to Learn the Trompowsky Attack (Step by Step)
- Memorize the 2...Ne4 main line first. The sequence 1.d4 Nf6 2.Bg5 Ne4 3.Bf4 d5 4.f3 Nf6 5.e4 covers ~60% of your practical Trompowsky games. Learn the standard White plan (build a center, develop Bd3 + Nf3 + O-O, then play for a kingside squeeze) and the typical Black setups. If you only have time for one line, this is the line.
- Learn the Hodgson 3.h4 attacking idea. Even if you usually play 3.Bf4, knowing 3.h4 gives you a tactical option against opponents who play 2...Ne4 on autopilot. The h4 push opens the h-file for direct attack and works especially well at club level where Black underestimates White's kingside potential. Study Julian Hodgson's games — he played this line for two decades and created most of the modern theory.
- Build a complete repertoire one Black move at a time. After the 2...Ne4 main line, add 2...e6 (3.e4 + Bxf6), then 2...d5 (3.Bxf6 exf6 + e3 setup), then 2...c5 (3.d5 Vaganian or 3.Bxf6 quieter), then 2...g6 (3.Bxf6 with kingside attack). At one variation per week, you have a complete repertoire in five weeks — far faster than learning the c4-system theory.
- Analyze your Trompowsky games for free. The Trompowsky is a concrete opening — the bishop trade timing, the h4 attacking plan, and the central e4 break all depend on small move-order details that are easy to miss in real games. Engine review catches the exact moment your central setup went wrong or you missed the right Bxf6 trade. Export your PGN and use chess.rodeo for full Stockfish analysis — no account, no paywall, unlimited games. The Trompowsky's mix of positional and tactical themes makes engine review especially valuable — every missed Bxf6 trade or h4 attacking chance becomes a permanent lesson.
Frequently Asked Questions
What is the Trompowsky Attack?
The Trompowsky Attack is a White opening beginning 1.d4 Nf6 2.Bg5. White pins the Black knight on f6 immediately, sidestepping all the heavily-analyzed Indian Defenses (King's Indian, Nimzo-Indian, Grünfeld, Queen's Indian) that arise after the more common 2.c4. It was popularized by Brazilian master Octavio Trompowsky in the 1930s-40s and made famous in the modern era by Julian Hodgson, who used it as his primary 1.d4 weapon for two decades.
Is the Trompowsky good for beginners?
Yes — the Trompowsky is one of the best intermediate-level White choices against 1...Nf6. Theory is light, the plans are concrete, and most club-level Black players have zero preparation against 2.Bg5. If you've outgrown the London System and want a more dynamic anti-Indian weapon, the Trompowsky is the natural next step.
What is the main line of the Trompowsky?
The most-played Black reply is 2...Ne4. White's main response is 3.Bf4 (Carlsen's choice, modern main line) or 3.h4!? (Hodgson's sharp attacking option). After 3.Bf4, play typically continues 3...d5 4.f3 Nf6 5.e4 with a big central pawn duo for White.
Why do top GMs play the Trompowsky?
As a surprise weapon. The Trompowsky doesn't promise a theoretical edge — engines say equal — but it drops Black out of preparation by move 2. Magnus Carlsen used it in the 2016 World Championship rapid tiebreaks against Karjakin for exactly this reason — when the theoretical walls are too high, the Trompowsky offers a low-theory game where middlegame skill decides.
How is the Trompowsky different from the London System?
Both develop the dark-squared bishop early and avoid Queen's Gambit theory. London is a positional setup with the bishop on f4 — same plan against everything, slow long-term squeeze. Trompowsky puts the bishop on g5 for an immediate pin, is willing to trade Bxf6, and produces sharper tactical games. Choose London for the no-theory positional weapon; choose Trompowsky for tactical chances and surprise value.
Analyze your Trompowsky games — free, no account
The Trompowsky is a concrete opening — the timing of the Bxf6 trade, the h4 attacking plan, and the central e4 break all depend on small move-order details that are easy to miss over the board. Engine analysis catches the exact moment your bishop trade went wrong, or where you missed the right central pawn break. Export your PGN and use chess.rodeo for full Stockfish analysis. No account, no paywall, unlimited games. The Trompowsky's mix of positional structure and tactical attacking ideas makes engine review unusually valuable — every missed Hodgson-style h4 push becomes a permanent lesson.