ECO family guide

Nimzo-Larsen Attack — all variations and ECO codes

18 named lines across 2 ECO codes (A01–A06). Source: the CC0-licensed lichess.org opening database.

The main line

Position after 1.b3 (A01). Open this line on Lichess → · Nimzo-Larsen Attack on Lichess

How the main line scores at your rating

Real Lichess win rates for 1.b3, playing as white — the family's other variations are not separately tracked for win rate yet, main line only.

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Win/draw/loss rate by rating band
Rating band	Games	White / draw / Black	Score for white
1400-1600	9,566,232	49.7% / 3.8% / 46.5%	51.6%
1600-1800	10,909,954	49.2% / 4.2% / 46.6%	51.3%
1800-2000	9,066,698	49.3% / 4.7% / 46.0%	51.7%
2000+	7,662,647	49.2% / 6.1% / 44.7%	52.3%

All 18 named variations

Every named line in the Nimzo-Larsen Attack family, from the CC0-licensed ECO classification — not separately tracked for win rate, but every ECO code and move sequence is real, sourced data.

A01Nimzo-Larsen Attack (main line) — 1.b3
A01Classical Variation — 1.b3 d5
A06Classical Variation — 1.Nf3 d5 2.b3
A01Dutch Variation — 1.b3 f5
A01English Variation — 1.b3 c5
A01Graz Attack — 1.b3 d5 2.Ba3
A01Indian Variation — 1.b3 Nf6
A01Modern Variation — 1.b3 e5
A01Modern Variation — 1.b3 e5 2.Bb2 Nc6
A01Modern Variation — 1.b3 e5 2.Bb2 Nc6 3.e3
A01Modern Variation — 1.b3 e5 2.Bb2 Nc6 3.c4 Nf6
A01Pachman Gambit — 1.b3 e5 2.Bb2 Nc6 3.f4
A01Polish Variation — 1.b3 b5
A01Ringelbach Gambit — 1.b3 f5 2.Bb2 e6 3.e4
A01Spike Variation — 1.b3 Nf6 2.Bb2 g6 3.g4
A01Symmetrical Variation — 1.b3 b6
A06Norfolk Gambit — 1.Nf3 d5 2.b3 c5 3.e4
A06Norfolk Gambit — 1.Nf3 d5 2.b3 Nf6 3.Bb2 c5 4.e4