How to Play the Trompowsky Attack

ECO A45 3,716,726 games Stockfish +0.15

The Trompowsky Attack (1.d4 Nf6 2.Bg5) skips the main-line d4 theory and immediately pressures Black's knight — either forcing a concession or baiting a trade that leaves Black with a doubled pawn. Stockfish rates the starting position +0.15, and the real edge comes from facing opponents who haven't prepared for it.

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The idea behind 2.Bg5

White's bishop goes to g5 before developing the knight, threatening Bxf6 on the next move. If Black ignores it White gets to double Black's f-pawns; if Black plays 2...Ne4 to kick the bishop, White retreats and exchanges anyway — either way Black's structure or development is slightly disrupted. The Trompowsky is a system you can learn as a set of plans, not a tree of forced variations.

Black's most common replies

  • 2...e6 — the most popular (1,127,046 games); Black sidesteps the trade and builds a solid center. White scores 47.9%.
  • 2...d5 — the engine's top choice; Black stakes the center immediately. White scores 48.3%.
  • 2...g6 — fianchetto setup (621,638 games); Black aims for a King's Indian structure. White scores 47.1%.
  • 2...Ne4 — grabs the bishop before it doubles the pawns (478,868 games). White scores 47.2%.
  • 2...h6 — asks the bishop where it wants to go (364,805 games). White scores 50.9% — the most favorable reply for White.

How to play it as White

After Bxf6 (wherever Black allows it), push for a central majority: e3, c4, Nf3 and chip away at Black's doubled f-pawns in the endgame. When Black avoids the trade with 2...e6, pivot to a Torre-like setup — Nf3, e3, Bd3, and a slow central build. The consistent thread is avoiding Black's preferred pawn structures: don't let the game become a Nimzo-Indian or King's Indian by transposition without a fight.

What 3.7 million games say

White scores 48.2% across 3,716,726 games — slightly under 50%, yet the engine gives White +0.15. The practical gap reflects that the Trompowsky attracts sharper responses from prepared opponents. The bright spot: Black's least popular main reply, 2...h6, is also its worst — White scores 50.9% there. The opening's real value is in the preparation asymmetry: you've studied it, they probably haven't.

Results across 3,716,726 Lichess games

48.2%
4.0%
47.8%
■ White 48.2% ■ Draw 4.0% ■ Black 47.8%
Most-played continuationGamesWhite wins
e61,127,04647.9%
d5652,59048.3%
g6621,63847.1%
Ne4478,86847.2%
h6364,80550.9%
d6187,17849.1%

Frequently asked questions

Is the Trompowsky Attack a sound opening?

Yes — Stockfish evaluates the position after 1.d4 Nf6 2.Bg5 at +0.15, essentially equal. It's a legitimate alternative to main-line d4 systems favored by GMs including Nigel Short and Julian Hodgson.

What is the best response to the Trompowsky?

2...e6 is the most popular reply (1,127,046 games) and keeps a solid structure. 2...d5 is the engine's first choice. Both hold White to under 49%.

How does the Trompowsky differ from the Torre Attack?

Both open 1.d4 and develop the bishop to g5, but the Torre waits for 1...Nf6 2.Nf3 3.Bg5 — a less forcing move order. The Trompowsky plays 2.Bg5 immediately and often aims to trade the bishop for the knight sooner.

Why does White score below 50% if the eval is positive?

Players who choose 2...e6 or 2...Ne4 tend to know what they're doing — the Trompowsky selects for prepared opponents. Across all 3.7M games White scores 48.2%, but against the weakest reply (2...h6) it reaches 50.9%.