ECO D43
4 named openings and variations are classified as D43. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Semi-Slav DefenseD431. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6
- Semi-Slav Defense: Anti-Moscow GambitD431. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4
- Semi-Slav Defense: Hastings VariationD431. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. Qb3
- Semi-Slav Defense: Moscow VariationD431. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6