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Trompowsky Attack

A45For WhiteAggressiveLow theory

1. d4 Nf6 2. Bg5

A line for White. Every figure below is computed separately for each rating band, and every one carries its own sample size.

Win rate, White
46.6%48.8%49.3%48.4%
Band 600, n = 2,059Band 1000, n = 13,476Band 1400, n = 14,618Band 1800, n = 42,190
Blunder rate
42.9%46.2%32.4%34.9%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
CCBB
White, band 600White, band 1000White, band 1400White, band 1800
Share of games
0.0%0.1%0.1%0.2%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60046.6%4.7%48.7%42.9%ply 3.02,059C
100048.8%3.7%47.5%46.2%ply 3.013,476C
140049.3%3.6%47.1%32.4%ply 3.014,618B
180048.4%4.5%47.2%34.9%ply 3.042,190B

Results by band

What it actually does, band by band.

All four bands are on the page. The one matching your rating is marked. Nothing here is averaged across bands.

600Your bandC at 600Blunder rate 42.9%, band median 44.6%

At 600, the Trompowsky Attack scores 46.6% for White across 2,059 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 42.9% include an early material blunder (7 games at 600).

1000Your bandC at 1000Blunder rate 46.2%, band median 42.9%

At 1000, the Trompowsky Attack scores 48.8% for White across 13,476 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 46.2% include an early material blunder (26 games at 1000).

1400Your bandB at 1400Blunder rate 32.4%, band median 40.0%

At 1400, the Trompowsky Attack scores 49.3% for White across 14,618 games. That is close to the average at this level. Games in this line leave known theory around move 2 on average, and 32.4% include an early material blunder (34 games at 1400).

1800Your bandB at 1800Blunder rate 34.9%, band median 36.4%

At 1800, the Trompowsky Attack scores 48.4% for White across 42,190 games. That is close to the average at this level. Games in this line leave known theory around move 2 on average, and 34.9% include an early material blunder (83 games at 1800).

Questions

Common questions about this page.

At 600, the Trompowsky Attack scores 46.6% for White across 2,059 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 42.9% include an early material blunder (7 games at 600).

At 1000, the Trompowsky Attack scores 48.8% for White across 13,476 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 46.2% include an early material blunder (26 games at 1000).

The Trompowsky Attack (A45) is a line for White. The main line runs 1. d4 Nf6 2. Bg5.