ECO A01: Nimzo-Larsen Attack

ECO A01 is part of volume A, Flank Openings. The Lichess chess-openings dataset files 15 named lines under it. The shortest is Nimzo-Larsen Attack: 1. b3.

That position has come up in 27,878,954 Lichess games between players rated 1600 to 2500: White won 49.2%, 4.9% were drawn and Black won 45.9%.

Opening	Moves	Games	Length
Nimzo-Larsen Attack	`1. b3`	27.9M	1 move
Nimzo-Larsen Attack: Classical Variation	`1. b3 d5`	7.3M	1 move
Nimzo-Larsen Attack: Dutch Variation	`1. b3 f5`	300K	1 move
Nimzo-Larsen Attack: English Variation	`1. b3 c5`	1.7M	1 move
Nimzo-Larsen Attack: Indian Variation	`1. b3 Nf6`	3.7M	1 move
Nimzo-Larsen Attack: Modern Variation	`1. b3 e5`	8.4M	1 move
Nimzo-Larsen Attack: Polish Variation	`1. b3 b5`	57K	1 move
Nimzo-Larsen Attack: Symmetrical Variation	`1. b3 b6`	820K	1 move
Nimzo-Larsen Attack: Graz Attack	`1. b3 d5 2. Ba3`	65K	2 moves
Nimzo-Larsen Attack: Modern Variation	`1. b3 e5 2. Bb2 Nc6`	5.1M	2 moves
Nimzo-Larsen Attack: Modern Variation	`1. b3 e5 2. Bb2 Nc6 3. e3`	3.3M	3 moves
Nimzo-Larsen Attack: Pachman Gambit	`1. b3 e5 2. Bb2 Nc6 3. f4`	20K	3 moves
Nimzo-Larsen Attack: Ringelbach Gambit	`1. b3 f5 2. Bb2 e6 3. e4`	8,035	3 moves
Nimzo-Larsen Attack: Spike Variation	`1. b3 Nf6 2. Bb2 g6 3. g4`	138K	3 moves
Nimzo-Larsen Attack: Modern Variation	`1. b3 e5 2. Bb2 Nc6 3. c4 Nf6`	205K	3 moves