ECO D11
5 named openings and variations are classified as D11. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Slav Defense: Bonet GambitD111. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg5
- Slav Defense: Breyer VariationD111. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nbd2
- Slav Defense: Modern LineD111. d4 d5 2. c4 c6 3. Nf3
- Slav Defense: Quiet VariationD111. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3
- Slav Defense: Quiet Variation, Pin DefenseD111. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg4