ECO D16
4 named openings and variations are classified as D16. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Slav Defense: Alapin VariationD161. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4
- Slav Defense: Smyslov VariationD161. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na6
- Slav Defense: Soultanbeieff VariationD161. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 e6
- Slav Defense: Steiner VariationD161. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bg4