ECO B04
6 named openings and variations are classified as B04. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Alekhine Defense: Modern VariationB041. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3
- Alekhine Defense: Modern Variation, Alburt VariationB041. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6
- Alekhine Defense: Modern Variation, Keres VariationB041. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4
- Alekhine Defense: Modern Variation, Larsen VariationB041. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5
- Alekhine Defense: Modern Variation, Larsen-Haakert VariationB041. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nc6
- Alekhine Defense: Modern Variation, Schmid VariationB041. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nb6