ECO A01
12 named openings and variations are classified as A01. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Nimzo-Larsen AttackA011. b3
- Nimzo-Larsen Attack: Classical VariationA011. b3 d5
- Nimzo-Larsen Attack: Dutch VariationA011. b3 f5
- Nimzo-Larsen Attack: English VariationA011. b3 c5
- Nimzo-Larsen Attack: Graz AttackA011. b3 d5 2. Ba3
- Nimzo-Larsen Attack: Indian VariationA011. b3 Nf6
- Nimzo-Larsen Attack: Modern VariationA011. b3 e5
- Nimzo-Larsen Attack: Pachman GambitA011. b3 e5 2. Bb2 Nc6 3. f4
- Nimzo-Larsen Attack: Polish VariationA011. b3 b5
- Nimzo-Larsen Attack: Ringelbach GambitA011. b3 f5 2. Bb2 e6 3. e4
- Nimzo-Larsen Attack: Spike VariationA011. b3 Nf6 2. Bb2 g6 3. g4
- Nimzo-Larsen Attack: Symmetrical VariationA011. b3 b6