ECO B40
18 named openings and variations are classified as B40. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Sicilian Defense: Alapin Variation, Sherzer VariationB401. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 Nc6
- Sicilian Defense: Delayed Alapin Variation, with e6B401. e4 c5 2. Nf3 e6 3. c3
- Sicilian Defense: Drazic VariationB401. e4 c5 2. Nf3 e6 3. d4 a6
- Sicilian Defense: French VariationB401. e4 c5 2. Nf3 e6
- Sicilian Defense: French Variation, NormalB401. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6
- Sicilian Defense: French Variation, OpenB401. e4 c5 2. Nf3 e6 3. d4 cxd4
- Sicilian Defense: French Variation, Westerinen AttackB401. e4 c5 2. Nf3 e6 3. b3
- Sicilian Defense: Gaw-Paw VariationB401. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6
- Sicilian Defense: Kan Variation, Wing Attack, Fianchetto VariationB401. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 b5 5. d4 cxd4 6. Nxd4
- Sicilian Defense: Kramnik VariationB401. e4 c5 2. Nf3 e6 3. c4
- Sicilian Defense: Kveinis VariationB401. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qb6
- Sicilian Defense: Marshall CounterattackB401. e4 c5 2. Nf3 e6 3. d4 d5
- Sicilian Defense: Paulsen-Basman DefenseB401. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5
- Sicilian Defense: Pin VariationB401. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4
- Sicilian Defense: Pin Variation, Jaffe VariationB401. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 e5
- Sicilian Defense: Pin Variation, Koch VariationB401. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5
- Sicilian Defense: Smith-Morra Gambit DeferredB401. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3
- Sicilian Defense: Wing Gambit DeferredB401. e4 c5 2. Nf3 e6 3. b4