ECO A56
7 named openings and variations are classified as A56. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Benoni DefenseA561. d4 Nf6 2. c4 c5
- Benoni Defense: Czech Benoni DefenseA561. d4 Nf6 2. c4 c5 3. d5 e5
- Benoni Defense: Hromádka SystemA561. d4 Nf6 2. c4 c5 3. d5 d6
- Benoni Defense: King's Indian SystemA561. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 g6
- Benoni Defense: Weenink VariationA561. d4 Nf6 2. c4 c5 3. dxc5 e6
- Grünfeld Defense: Three Knights Variation, Burille Variation, Reversed TarraschA561. d4 Nf6 2. c4 c5 3. e3 g6 4. Nc3 Bg7 5. Nf3 O-O 6. Be2 cxd4 7. exd4 d5 8. O-O Nc6
- Vulture DefenseA561. d4 Nf6 2. c4 c5 3. d5 Ne4